Discussion:
[Open-FCoE] [PATCH V5 net-next 1/2] qed: Add support for hardware offloaded FCoE.
Dupuis, Chad
2017-02-15 14:28:22 UTC
Permalink
From: Arun Easi <***@qlogic.com>

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4xxxx line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi <***@cavium.com>
Signed-off-by: Yuval Mintz <***@cavium.com>
---
drivers/net/ethernet/qlogic/Kconfig | 3 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 11 +
drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 +-
drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 ++++-
drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 1014 +++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 87 ++
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 +++++++++++++++-
drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
include/linux/qed/common_hsi.h | 10 +-
include/linux/qed/fcoe_common.h | 715 +++++++++++++++
include/linux/qed/qed_fcoe_if.h | 145 +++
include/linux/qed/qed_if.h | 41 +-
25 files changed, 3211 insertions(+), 19 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
create mode 100644 include/linux/qed/fcoe_common.h
create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
config QED_ISCSI
bool

+config QED_FCOE
+ bool
+
endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
qed-$(CONFIG_QED_RDMA) += qed_roce.o
qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..0e218d0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
#define QED_WFQ_UNIT 100

#define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
#define QED_WID_SIZE (1024)
#define QED_PF_DEMS_SIZE (4)

@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
*/
enum qed_pci_personality {
QED_PCI_ETH,
+ QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+ QED_FCOE_CQ,
QED_MAX_FEATURES,
};

@@ -221,6 +224,7 @@ enum QED_PORT_MODE {

enum qed_dev_cap {
QED_DEV_CAP_ETH,
+ QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
};
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];

unsigned char hw_mac_addr[ETH_ALEN];
+ u64 node_wwn;
+ u64 port_wwn;
+
+ u16 num_fcoe_conns;

struct qed_igu_info *p_igu_info;

@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info *p_rdma_info;
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_fcoe_info *p_fcoe_info;
struct qed_pf_params pf_params;

bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {

u8 protocol;
#define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_FCOE)

/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops *common;
struct qed_eth_cb_ops *eth;
+ struct qed_fcoe_cb_ops *fcoe;
struct qed_iscsi_cb_ops *iscsi;
} protocol_ops;
void *ops_cookie;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index dcb8fc1..d42d03d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -90,12 +90,14 @@
struct core_conn_context core_ctx;
struct eth_conn_context eth_ctx;
struct iscsi_conn_context iscsi_ctx;
+ struct fcoe_conn_context fcoe_ctx;
struct roce_conn_context roce_ctx;
};

-/* TYPE-0 task context - iSCSI */
+/* TYPE-0 task context - iSCSI, FCOE */
union type0_task_context {
struct iscsi_task_context iscsi_ctx;
+ struct fcoe_task_context fcoe_ctx;
};

/* TYPE-1 task context - ROCE */
@@ -240,15 +242,22 @@ struct qed_cxt_mngr {
static bool src_proto(enum protocol_type type)
{
return type == PROTOCOLID_ISCSI ||
+ type == PROTOCOLID_FCOE ||
type == PROTOCOLID_ROCE;
}

static bool tm_cid_proto(enum protocol_type type)
{
return type == PROTOCOLID_ISCSI ||
+ type == PROTOCOLID_FCOE ||
type == PROTOCOLID_ROCE;
}

+static bool tm_tid_proto(enum protocol_type type)
+{
+ return type == PROTOCOLID_FCOE;
+}
+
/* counts the iids for the CDU/CDUC ILT client configuration */
struct qed_cdu_iids {
u32 pf_cids;
@@ -307,6 +316,22 @@ static void qed_cxt_tm_iids(struct qed_cxt_mngr *p_mngr,
iids->pf_cids += p_cfg->cid_count;
iids->per_vf_cids += p_cfg->cids_per_vf;
}
+
+ if (tm_tid_proto(i)) {
+ struct qed_tid_seg *segs = p_cfg->tid_seg;
+
+ /* for each segment there is at most one
+ * protocol for which count is not 0.
+ */
+ for (j = 0; j < NUM_TASK_PF_SEGMENTS; j++)
+ iids->pf_tids[j] += segs[j].count;
+
+ /* The last array elelment is for the VFs. As for PF
+ * segments there can be only one protocol for
+ * which this value is not 0.
+ */
+ iids->per_vf_tids += segs[NUM_TASK_PF_SEGMENTS].count;
+ }
}

iids->pf_cids = roundup(iids->pf_cids, TM_ALIGN);
@@ -1694,9 +1719,42 @@ static void qed_tm_init_pf(struct qed_hwfn *p_hwfn)
/* @@@TBD how to enable the scan for the VFs */
}

+static void qed_prs_init_common(struct qed_hwfn *p_hwfn)
+{
+ if ((p_hwfn->hw_info.personality == QED_PCI_FCOE) &&
+ p_hwfn->pf_params.fcoe_pf_params.is_target)
+ STORE_RT_REG(p_hwfn,
+ PRS_REG_SEARCH_RESP_INITIATOR_TYPE_RT_OFFSET, 0);
+}
+
+static void qed_prs_init_pf(struct qed_hwfn *p_hwfn)
+{
+ struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
+ struct qed_conn_type_cfg *p_fcoe;
+ struct qed_tid_seg *p_tid;
+
+ p_fcoe = &p_mngr->conn_cfg[PROTOCOLID_FCOE];
+
+ /* If FCoE is active set the MAX OX_ID (tid) in the Parser */
+ if (!p_fcoe->cid_count)
+ return;
+
+ p_tid = &p_fcoe->tid_seg[QED_CXT_FCOE_TID_SEG];
+ if (p_hwfn->pf_params.fcoe_pf_params.is_target) {
+ STORE_RT_REG_AGG(p_hwfn,
+ PRS_REG_TASK_ID_MAX_TARGET_PF_RT_OFFSET,
+ p_tid->count);
+ } else {
+ STORE_RT_REG_AGG(p_hwfn,
+ PRS_REG_TASK_ID_MAX_INITIATOR_PF_RT_OFFSET,
+ p_tid->count);
+ }
+}
+
void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn)
{
qed_cdu_init_common(p_hwfn);
+ qed_prs_init_common(p_hwfn);
}

void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn)
@@ -1708,6 +1766,7 @@ void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn)
qed_ilt_init_pf(p_hwfn);
qed_src_init_pf(p_hwfn);
qed_tm_init_pf(p_hwfn);
+ qed_prs_init_pf(p_hwfn);
}

int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
@@ -1885,6 +1944,27 @@ int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn)
p_params->num_cons, 1);
break;
}
+ case QED_PCI_FCOE:
+ {
+ struct qed_fcoe_pf_params *p_params;
+
+ p_params = &p_hwfn->pf_params.fcoe_pf_params;
+
+ if (p_params->num_cons && p_params->num_tasks) {
+ qed_cxt_set_proto_cid_count(p_hwfn,
+ PROTOCOLID_FCOE,
+ p_params->num_cons,
+ 0);
+
+ qed_cxt_set_proto_tid_count(p_hwfn, PROTOCOLID_FCOE,
+ QED_CXT_FCOE_TID_SEG, 0,
+ p_params->num_tasks, true);
+ } else {
+ DP_INFO(p_hwfn->cdev,
+ "Fcoe personality used without setting params!\n");
+ }
+ break;
+ }
case QED_PCI_ISCSI:
{
struct qed_iscsi_pf_params *p_params;
@@ -1927,6 +2007,10 @@ int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,

/* Verify the personality */
switch (p_hwfn->hw_info.personality) {
+ case QED_PCI_FCOE:
+ proto = PROTOCOLID_FCOE;
+ seg = QED_CXT_FCOE_TID_SEG;
+ break;
case QED_PCI_ISCSI:
proto = PROTOCOLID_ISCSI;
seg = QED_CXT_ISCSI_TID_SEG;
@@ -2215,15 +2299,19 @@ int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
{
struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
struct qed_ilt_client_cfg *p_cli;
- struct qed_ilt_cli_blk *p_seg;
struct qed_tid_seg *p_seg_info;
- u32 proto, seg;
- u32 total_lines;
- u32 tid_size, ilt_idx;
+ struct qed_ilt_cli_blk *p_seg;
u32 num_tids_per_block;
+ u32 tid_size, ilt_idx;
+ u32 total_lines;
+ u32 proto, seg;

/* Verify the personality */
switch (p_hwfn->hw_info.personality) {
+ case QED_PCI_FCOE:
+ proto = PROTOCOLID_FCOE;
+ seg = QED_CXT_FCOE_TID_SEG;
+ break;
case QED_PCI_ISCSI:
proto = PROTOCOLID_ISCSI;
seg = QED_CXT_ISCSI_TID_SEG;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.h b/drivers/net/ethernet/qlogic/qed/qed_cxt.h
index 98f4973..8b01032 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.h
@@ -91,6 +91,7 @@ int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,

#define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI
#define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
+#define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
enum qed_cxt_elem_type {
QED_ELEM_CXT,
QED_ELEM_SRQ,
@@ -204,4 +205,6 @@ u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,

#define QED_CTX_WORKING_MEM 0
#define QED_CTX_FL_MEM 1
+int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
+ u32 tid, u8 ctx_type, void **task_ctx);
#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index dc0d2c9..5bd36a4 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -432,7 +432,6 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
return rc;
}

-#ifdef CONFIG_DCB
static void
qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
struct qed_dcbx_app_prio *p_prio,
@@ -749,7 +748,6 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)

return 0;
}
-#endif

static int
qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
@@ -864,6 +862,15 @@ static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
return rc;
}

+void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
+{
+ struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
+ void *cookie = hwfn->cdev->ops_cookie;
+
+ if (cookie && op->dcbx_aen)
+ op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
+}
+
/* Read updated MIB.
* Reconfigure QM and invoke PF update ramrod command if operational MIB
* change is detected.
@@ -890,6 +897,8 @@ static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
qed_sp_pf_update(p_hwfn);
}
}
+ qed_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
+ qed_dcbx_aen(p_hwfn, type);

return rc;
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
index d70300f..0fabe97 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
@@ -57,7 +57,6 @@ struct qed_dcbx_app_data {
u8 tc; /* Traffic Class */
};

-#ifdef CONFIG_DCB
#define QED_DCBX_VERSION_DISABLED 0
#define QED_DCBX_VERSION_IEEE 1
#define QED_DCBX_VERSION_CEE 2
@@ -73,7 +72,6 @@ struct qed_dcbx_set {
struct qed_dcbx_admin_params config;
u32 ver_num;
};
-#endif

struct qed_dcbx_results {
bool dcbx_enabled;
@@ -97,9 +95,8 @@ struct qed_dcbx_info {
struct qed_dcbx_results results;
struct dcbx_mib operational;
struct dcbx_mib remote;
-#ifdef CONFIG_DCB
struct qed_dcbx_set set;
-#endif
+ struct qed_dcbx_get get;
u8 dcbx_cap;
};

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 33e7201..5ee7f04 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -49,6 +49,7 @@
#include "qed_cxt.h"
#include "qed_dcbx.h"
#include "qed_dev_api.h"
+#include "qed_fcoe.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_init_ops.h"
@@ -172,6 +173,9 @@ void qed_resc_free(struct qed_dev *cdev)
#ifdef CONFIG_QED_LL2
qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
+ qed_fcoe_free(p_hwfn, p_hwfn->p_fcoe_info);
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
qed_ooo_free(p_hwfn, p_hwfn->p_ooo_info);
@@ -433,6 +437,7 @@ int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
int qed_resc_alloc(struct qed_dev *cdev)
{
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_fcoe_info *p_fcoe_info;
struct qed_ooo_info *p_ooo_info;
#ifdef CONFIG_QED_LL2
struct qed_ll2_info *p_ll2_info;
@@ -539,6 +544,14 @@ int qed_resc_alloc(struct qed_dev *cdev)
p_hwfn->p_ll2_info = p_ll2_info;
}
#endif
+
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
+ p_fcoe_info = qed_fcoe_alloc(p_hwfn);
+ if (!p_fcoe_info)
+ goto alloc_no_mem;
+ p_hwfn->p_fcoe_info = p_fcoe_info;
+ }
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
p_iscsi_info = qed_iscsi_alloc(p_hwfn);
if (!p_iscsi_info)
@@ -602,6 +615,9 @@ void qed_resc_setup(struct qed_dev *cdev)
if (p_hwfn->using_ll2)
qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
+ qed_fcoe_setup(p_hwfn, p_hwfn->p_fcoe_info);
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
qed_ooo_setup(p_hwfn, p_hwfn->p_ooo_info);
@@ -994,7 +1010,8 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
/* Protocl Configuration */
STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET,
(p_hwfn->hw_info.personality == QED_PCI_ISCSI) ? 1 : 0);
- STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET, 0);
+ STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET,
+ (p_hwfn->hw_info.personality == QED_PCI_FCOE) ? 1 : 0);
STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0);

/* Cleanup chip from previous driver if such remains exist */
@@ -1026,8 +1043,16 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
/* send function start command */
rc = qed_sp_pf_start(p_hwfn, p_tunn, p_hwfn->cdev->mf_mode,
allow_npar_tx_switch);
- if (rc)
+ if (rc) {
DP_NOTICE(p_hwfn, "Function start ramrod failed\n");
+ return rc;
+ }
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
+ qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TAG1, BIT(2));
+ qed_wr(p_hwfn, p_ptt,
+ PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST,
+ 0x100);
+ }
}
return rc;
}
@@ -1787,8 +1812,8 @@ static int qed_hw_get_resc(struct qed_hwfn *p_hwfn)

static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
- u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
u32 port_cfg_addr, link_temp, nvm_cfg_addr, device_capabilities;
+ u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
struct qed_mcp_link_params *link;

/* Read global nvm_cfg address */
@@ -1934,6 +1959,9 @@ static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET)
__set_bit(QED_DEV_CAP_ETH,
&p_hwfn->hw_info.device_capabilities);
+ if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE)
+ __set_bit(QED_DEV_CAP_FCOE,
+ &p_hwfn->hw_info.device_capabilities);
if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI)
__set_bit(QED_DEV_CAP_ISCSI,
&p_hwfn->hw_info.device_capabilities);
@@ -2671,6 +2699,177 @@ void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
}

+int
+qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port, enum qed_llh_port_filter_type_t type)
+{
+ u32 high = 0, low = 0, en;
+ int i;
+
+ if (!(IS_MF_SI(p_hwfn) || IS_MF_DEFAULT(p_hwfn)))
+ return 0;
+
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ high = source_port_or_eth_type;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ low = source_port_or_eth_type << 16;
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ low = dest_port;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ low = (source_port_or_eth_type << 16) | dest_port;
+ break;
+ default:
+ DP_NOTICE(p_hwfn,
+ "Non valid LLH protocol filter type %d\n", type);
+ return -EINVAL;
+ }
+ /* Find a free entry and utilize it */
+ for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
+ en = qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32));
+ if (en)
+ continue;
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ 2 * i * sizeof(u32), low);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32), high);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 1);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32), 1 << type);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 1);
+ break;
+ }
+ if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
+ DP_NOTICE(p_hwfn,
+ "Failed to find an empty LLH filter to utilize\n");
+ return -EINVAL;
+ }
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "ETH type %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP src port %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP src port %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP dst port %x is added at %d\n", dest_port, i);
+ break;
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP dst port %x is added at %d\n", dest_port, i);
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP src/dst ports %x/%x are added at %d\n",
+ source_port_or_eth_type, dest_port, i);
+ break;
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP src/dst ports %x/%x are added at %d\n",
+ source_port_or_eth_type, dest_port, i);
+ break;
+ }
+ return 0;
+}
+
+void
+qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type)
+{
+ u32 high = 0, low = 0;
+ int i;
+
+ if (!(IS_MF_SI(p_hwfn) || IS_MF_DEFAULT(p_hwfn)))
+ return;
+
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ high = source_port_or_eth_type;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ low = source_port_or_eth_type << 16;
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ low = dest_port;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ low = (source_port_or_eth_type << 16) | dest_port;
+ break;
+ default:
+ DP_NOTICE(p_hwfn,
+ "Non valid LLH protocol filter type %d\n", type);
+ return;
+ }
+
+ for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
+ if (!qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32)))
+ continue;
+ if (!qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32)))
+ continue;
+ if (!(qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32)) & BIT(type)))
+ continue;
+ if (qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ 2 * i * sizeof(u32)) != low)
+ continue;
+ if (qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32)) != high)
+ continue;
+
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32), 0);
+ break;
+ }
+
+ if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE)
+ DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
+}
+
static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
u32 hw_addr, void *p_eth_qzone,
size_t eth_qzone_size, u8 timeset)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev_api.h b/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
index 5d37ba2..6812003 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
@@ -353,6 +353,48 @@ int qed_llh_add_mac_filter(struct qed_hwfn *p_hwfn,
void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u8 *p_filter);

+enum qed_llh_port_filter_type_t {
+ QED_LLH_FILTER_ETHERTYPE,
+ QED_LLH_FILTER_TCP_SRC_PORT,
+ QED_LLH_FILTER_TCP_DEST_PORT,
+ QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
+ QED_LLH_FILTER_UDP_SRC_PORT,
+ QED_LLH_FILTER_UDP_DEST_PORT,
+ QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
+};
+
+/**
+ * @brief qed_llh_add_protocol_filter - configures a protocol filter in llh
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param source_port_or_eth_type - source port or ethertype to add
+ * @param dest_port - destination port to add
+ * @param type - type of filters and comparing
+ */
+int
+qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type);
+
+/**
+ * @brief qed_llh_remove_protocol_filter - remove a protocol filter in llh
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param source_port_or_eth_type - source port or ethertype to add
+ * @param dest_port - destination port to add
+ * @param type - type of filters and comparing
+ */
+void
+qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type);
+
/**
* *@brief Cleanup of previous driver remains prior to load
*
diff --git a/drivers/net/ethernet/qlogic/qed/qed_fcoe.c b/drivers/net/ethernet/qlogic/qed/qed_fcoe.c
new file mode 100644
index 0000000..cbc8141
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_fcoe.c
@@ -0,0 +1,1014 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 QLogic Corporation
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and /or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/param.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#define __PREVENT_DUMP_MEM_ARR__
+#define __PREVENT_PXP_GLOBAL_WIN__
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dev_api.h"
+#include "qed_fcoe.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_int.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_reg_addr.h"
+#include "qed_sp.h"
+#include "qed_sriov.h"
+#include <linux/qed/qed_fcoe_if.h>
+
+struct qed_fcoe_conn {
+ struct list_head list_entry;
+ bool free_on_delete;
+
+ u16 conn_id;
+ u32 icid;
+ u32 fw_cid;
+ u8 layer_code;
+
+ dma_addr_t sq_pbl_addr;
+ dma_addr_t sq_curr_page_addr;
+ dma_addr_t sq_next_page_addr;
+ dma_addr_t xferq_pbl_addr;
+ void *xferq_pbl_addr_virt_addr;
+ dma_addr_t xferq_addr[4];
+ void *xferq_addr_virt_addr[4];
+ dma_addr_t confq_pbl_addr;
+ void *confq_pbl_addr_virt_addr;
+ dma_addr_t confq_addr[2];
+ void *confq_addr_virt_addr[2];
+
+ dma_addr_t terminate_params;
+
+ u16 dst_mac_addr_lo;
+ u16 dst_mac_addr_mid;
+ u16 dst_mac_addr_hi;
+ u16 src_mac_addr_lo;
+ u16 src_mac_addr_mid;
+ u16 src_mac_addr_hi;
+
+ u16 tx_max_fc_pay_len;
+ u16 e_d_tov_timer_val;
+ u16 rec_tov_timer_val;
+ u16 rx_max_fc_pay_len;
+ u16 vlan_tag;
+ u16 physical_q0;
+
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+ u8 def_q_idx;
+};
+
+static int
+qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
+ struct fcoe_init_ramrod_params *p_ramrod = NULL;
+ struct fcoe_init_func_ramrod_data *p_data;
+ struct fcoe_conn_context *p_cxt = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ struct qed_cxt_info cxt_info;
+ u32 dummy_cid;
+ int rc = 0;
+ u16 tmp;
+ u8 i;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_INIT_FUNC,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_init;
+ p_data = &p_ramrod->init_ramrod_data;
+ fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
+
+ p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
+ tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
+ p_data->sq_num_pages_in_pbl = tmp;
+
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
+ if (rc)
+ return rc;
+
+ cxt_info.iid = dummy_cid;
+ rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
+ if (rc) {
+ DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
+ dummy_cid);
+ return rc;
+ }
+ p_cxt = cxt_info.p_cxt;
+ SET_FIELD(p_cxt->tstorm_ag_context.flags3,
+ TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
+
+ fcoe_pf_params->dummy_icid = (u16)dummy_cid;
+
+ tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
+ p_data->func_params.num_tasks = tmp;
+ p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
+ p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
+
+ DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
+ fcoe_pf_params->glbl_q_params_addr);
+
+ tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
+ p_data->q_params.cq_num_entries = tmp;
+
+ tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
+ p_data->q_params.cmdq_num_entries = tmp;
+
+ tmp = fcoe_pf_params->num_cqs;
+ p_data->q_params.num_queues = (u8)tmp;
+
+ tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
+ p_data->q_params.queue_relative_offset = (u8)tmp;
+
+ for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
+ tmp = cpu_to_le16(p_hwfn->sbs_info[i]->igu_sb_id);
+ p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
+ }
+
+ p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
+ p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
+
+ p_data->q_params.bdq_resource_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
+ fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
+ p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
+ fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
+ tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
+ p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
+ p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
+
+ DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
+ fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
+ p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
+ fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
+ tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
+ p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
+ p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->rq_buffer_size;
+ p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
+
+ if (fcoe_pf_params->is_target) {
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
+ } else {
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ }
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+
+ return rc;
+}
+
+static int
+qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
+ struct fcoe_conn_offload_ramrod_data *p_data;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ u16 pq_id = 0, tmp;
+ int rc;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
+ p_data = &p_ramrod->offload_ramrod_data;
+
+ /* Transmission PQ is the first of the PF */
+ pq_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_FCOE, NULL);
+ p_conn->physical_q0 = cpu_to_le16(pq_id);
+ p_data->physical_q0 = cpu_to_le16(pq_id);
+
+ p_data->conn_id = cpu_to_le16(p_conn->conn_id);
+ DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
+ DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
+ DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
+ DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
+
+ DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
+ DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
+
+ p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
+ p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
+ p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
+ p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
+ p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
+ p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
+
+ tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
+ p_data->tx_max_fc_pay_len = tmp;
+ tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
+ p_data->e_d_tov_timer_val = tmp;
+ tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
+ p_data->rec_rr_tov_timer_val = tmp;
+ tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
+ p_data->rx_max_fc_pay_len = tmp;
+
+ p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
+ p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
+ p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
+ p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
+ p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
+ p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
+ p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
+ p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
+ p_data->flags = p_conn->flags;
+ p_data->def_q_idx = p_conn->def_q_idx;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
+ DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
+ p_conn->terminate_params);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct qed_ptt *p_ptt = p_hwfn->p_main_ptt;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ u32 active_segs = 0;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
+ active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
+ qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn **p_out_conn)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+ void *p_addr;
+ u32 i;
+
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
+ p_conn =
+ list_first_entry(&p_hwfn->p_fcoe_info->free_list,
+ struct qed_fcoe_conn, list_entry);
+ if (p_conn) {
+ list_del(&p_conn->list_entry);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ *p_out_conn = p_conn;
+ return 0;
+ }
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+
+ p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
+ if (!p_conn)
+ return -ENOMEM;
+
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->xferq_pbl_addr, GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_pbl_xferq;
+ p_conn->xferq_pbl_addr_virt_addr = p_addr;
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->xferq_addr[i], GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_xferq;
+ p_conn->xferq_addr_virt_addr[i] = p_addr;
+
+ p_addr = p_conn->xferq_pbl_addr_virt_addr;
+ ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
+ }
+
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->confq_pbl_addr, GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_xferq;
+ p_conn->confq_pbl_addr_virt_addr = p_addr;
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->confq_addr[i], GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_confq;
+ p_conn->confq_addr_virt_addr[i] = p_addr;
+
+ p_addr = p_conn->confq_pbl_addr_virt_addr;
+ ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
+ }
+
+ p_conn->free_on_delete = true;
+ *p_out_conn = p_conn;
+ return 0;
+
+nomem_confq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_pbl_addr_virt_addr,
+ p_conn->confq_pbl_addr);
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
+ if (p_conn->confq_addr_virt_addr[i])
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_addr_virt_addr[i],
+ p_conn->confq_addr[i]);
+nomem_xferq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_pbl_addr_virt_addr,
+ p_conn->xferq_pbl_addr);
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
+ if (p_conn->xferq_addr_virt_addr[i])
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_addr_virt_addr[i],
+ p_conn->xferq_addr[i]);
+nomem_pbl_xferq:
+ kfree(p_conn);
+ return -ENOMEM;
+}
+
+static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn)
+{
+ u32 i;
+
+ if (!p_conn)
+ return;
+
+ if (p_conn->confq_pbl_addr_virt_addr)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_pbl_addr_virt_addr,
+ p_conn->confq_pbl_addr);
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
+ if (!p_conn->confq_addr_virt_addr[i])
+ continue;
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_addr_virt_addr[i],
+ p_conn->confq_addr[i]);
+ }
+
+ if (p_conn->xferq_pbl_addr_virt_addr)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_pbl_addr_virt_addr,
+ p_conn->xferq_pbl_addr);
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
+ if (!p_conn->xferq_addr_virt_addr[i])
+ continue;
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_addr_virt_addr[i],
+ p_conn->xferq_addr[i]);
+ }
+ kfree(p_conn);
+}
+
+static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ return (u8 __iomem *)p_hwfn->doorbells +
+ qed_db_addr(cid, DQ_DEMS_LEGACY);
+}
+
+static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, bdq_id);
+}
+
+static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, bdq_id);
+}
+
+struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_fcoe_info *p_fcoe_info;
+
+ /* Allocate LL2's set struct */
+ p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
+ if (!p_fcoe_info) {
+ DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
+ return NULL;
+ }
+ INIT_LIST_HEAD(&p_fcoe_info->free_list);
+ return p_fcoe_info;
+}
+
+void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
+{
+ struct fcoe_task_context *p_task_ctx = NULL;
+ int rc;
+ u32 i;
+
+ spin_lock_init(&p_fcoe_info->lock);
+ for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
+ rc = qed_cxt_get_task_ctx(p_hwfn, i,
+ QED_CTX_WORKING_MEM,
+ (void **)&p_task_ctx);
+ if (rc)
+ continue;
+
+ memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
+ SET_FIELD(p_task_ctx->timer_context.logical_client_0,
+ TIMERS_CONTEXT_VALIDLC0, 1);
+ SET_FIELD(p_task_ctx->timer_context.logical_client_1,
+ TIMERS_CONTEXT_VALIDLC1, 1);
+ SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
+ }
+}
+
+void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+
+ if (!p_fcoe_info)
+ return;
+
+ while (!list_empty(&p_fcoe_info->free_list)) {
+ p_conn = list_first_entry(&p_fcoe_info->free_list,
+ struct qed_fcoe_conn, list_entry);
+ if (!p_conn)
+ break;
+ list_del(&p_conn->list_entry);
+ qed_fcoe_free_connection(p_hwfn, p_conn);
+ }
+
+ kfree(p_fcoe_info);
+}
+
+static int
+qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_in_conn,
+ struct qed_fcoe_conn **p_out_conn)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+ int rc = 0;
+ u32 icid;
+
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ if (rc)
+ return rc;
+
+ /* Use input connection [if provided] or allocate a new one */
+ if (p_in_conn) {
+ p_conn = p_in_conn;
+ } else {
+ rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
+ if (rc) {
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ qed_cxt_release_cid(p_hwfn, icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ return rc;
+ }
+ }
+
+ p_conn->icid = icid;
+ p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
+ *p_out_conn = p_conn;
+
+ return rc;
+}
+
+static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn)
+{
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
+ qed_cxt_release_cid(p_hwfn, p_conn->icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+}
+
+static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct fcoe_rx_stat tstats;
+ u32 tstats_addr;
+
+ memset(&tstats, 0, sizeof(tstats));
+ tstats_addr = BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
+
+ p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
+ p_stats->fcoe_rx_data_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
+ p_stats->fcoe_rx_xfer_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
+ p_stats->fcoe_rx_other_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
+
+ p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
+ p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
+ p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
+ p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
+ p_stats->fcoe_silent_drop_total_pkt_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
+}
+
+static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct fcoe_tx_stat pstats;
+ u32 pstats_addr;
+
+ memset(&pstats, 0, sizeof(pstats));
+ pstats_addr = BAR0_MAP_REG_PSDM_RAM +
+ PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
+
+ p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
+ p_stats->fcoe_tx_data_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
+ p_stats->fcoe_tx_xfer_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
+ p_stats->fcoe_tx_other_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
+}
+
+static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct qed_ptt *p_ptt;
+
+ memset(p_stats, 0, sizeof(*p_stats));
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+
+ if (!p_ptt) {
+ DP_ERR(p_hwfn, "Failed to acquire ptt\n");
+ return -EINVAL;
+ }
+
+ _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
+ _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ return 0;
+}
+
+struct qed_hash_fcoe_con {
+ struct hlist_node node;
+ struct qed_fcoe_conn *con;
+};
+
+static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
+ struct qed_dev_fcoe_info *info)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ int rc;
+
+ memset(info, 0, sizeof(*info));
+ rc = qed_fill_dev_info(cdev, &info->common);
+
+ info->primary_dbq_rq_addr =
+ qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
+ info->secondary_bdq_rq_addr =
+ qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
+
+ return rc;
+}
+
+static void qed_register_fcoe_ops(struct qed_dev *cdev,
+ struct qed_fcoe_cb_ops *ops, void *cookie)
+{
+ cdev->protocol_ops.fcoe = ops;
+ cdev->ops_cookie = cookie;
+}
+
+static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
+ u32 handle)
+{
+ struct qed_hash_fcoe_con *hash_con = NULL;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
+ return NULL;
+
+ hash_for_each_possible(cdev->connections, hash_con, node, handle) {
+ if (hash_con->con->icid == handle)
+ break;
+ }
+
+ if (!hash_con || (hash_con->con->icid != handle))
+ return NULL;
+
+ return hash_con;
+}
+
+static int qed_fcoe_stop(struct qed_dev *cdev)
+{
+ int rc;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
+ DP_NOTICE(cdev, "fcoe already stopped\n");
+ return 0;
+ }
+
+ if (!hash_empty(cdev->connections)) {
+ DP_NOTICE(cdev,
+ "Can't stop fcoe - not all connections were returned\n");
+ return -EINVAL;
+ }
+
+ /* Stop the fcoe */
+ rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
+
+ return rc;
+}
+
+static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
+{
+ int rc;
+
+ if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
+ DP_NOTICE(cdev, "fcoe already started;\n");
+ return 0;
+ }
+
+ rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to start fcoe\n");
+ return rc;
+ }
+
+ cdev->flags |= QED_FLAG_STORAGE_STARTED;
+ hash_init(cdev->connections);
+
+ if (tasks) {
+ struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
+ GFP_ATOMIC);
+
+ if (!tid_info) {
+ DP_NOTICE(cdev,
+ "Failed to allocate tasks information\n");
+ qed_fcoe_stop(cdev);
+ return -ENOMEM;
+ }
+
+ rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to gather task information\n");
+ qed_fcoe_stop(cdev);
+ kfree(tid_info);
+ return rc;
+ }
+
+ /* Fill task information */
+ tasks->size = tid_info->tid_size;
+ tasks->num_tids_per_block = tid_info->num_tids_per_block;
+ memcpy(tasks->blocks, tid_info->blocks,
+ MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
+
+ kfree(tid_info);
+ }
+
+ return 0;
+}
+
+static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ int rc;
+
+ /* Allocate a hashed connection */
+ hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
+ return -ENOMEM;
+ }
+
+ /* Acquire the connection */
+ rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
+ &hash_con->con);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to acquire Connection\n");
+ kfree(hash_con);
+ return rc;
+ }
+
+ /* Added the connection to hash table */
+ *handle = hash_con->con->icid;
+ *fw_cid = hash_con->con->fw_cid;
+ hash_add(cdev->connections, &hash_con->node, *handle);
+
+ if (p_doorbell)
+ *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
+ *handle);
+
+ return 0;
+}
+
+static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_fcoe_con *hash_con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hlist_del(&hash_con->node);
+ qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
+ kfree(hash_con);
+
+ return 0;
+}
+
+static int qed_fcoe_offload_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_fcoe_params_offload *conn_info)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ struct qed_fcoe_conn *con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+
+ con->sq_pbl_addr = conn_info->sq_pbl_addr;
+ con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
+ con->sq_next_page_addr = conn_info->sq_next_page_addr;
+ con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
+ con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
+ con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
+ con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
+ con->vlan_tag = conn_info->vlan_tag;
+ con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
+ con->flags = conn_info->flags;
+ con->def_q_idx = conn_info->def_q_idx;
+
+ con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
+ conn_info->src_mac[4];
+ con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
+ conn_info->src_mac[2];
+ con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
+ conn_info->src_mac[0];
+ con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
+ conn_info->dst_mac[4];
+ con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
+ conn_info->dst_mac[2];
+ con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
+ conn_info->dst_mac[0];
+
+ con->s_id.addr_hi = conn_info->s_id.addr_hi;
+ con->s_id.addr_mid = conn_info->s_id.addr_mid;
+ con->s_id.addr_lo = conn_info->s_id.addr_lo;
+ con->d_id.addr_hi = conn_info->d_id.addr_hi;
+ con->d_id.addr_mid = conn_info->d_id.addr_mid;
+ con->d_id.addr_lo = conn_info->d_id.addr_lo;
+
+ return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
+ u32 handle, dma_addr_t terminate_params)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ struct qed_fcoe_conn *con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+ con->terminate_params = terminate_params;
+
+ return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
+{
+ return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
+}
+
+void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats)
+{
+ struct qed_fcoe_stats proto_stats;
+
+ /* Retrieve FW statistics */
+ memset(&proto_stats, 0, sizeof(proto_stats));
+ if (qed_fcoe_stats(cdev, &proto_stats)) {
+ DP_VERBOSE(cdev, QED_MSG_STORAGE,
+ "Failed to collect FCoE statistics\n");
+ return;
+ }
+
+ /* Translate FW statistics into struct */
+ stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
+ proto_stats.fcoe_rx_xfer_pkt_cnt +
+ proto_stats.fcoe_rx_other_pkt_cnt;
+ stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
+ proto_stats.fcoe_tx_xfer_pkt_cnt +
+ proto_stats.fcoe_tx_other_pkt_cnt;
+ stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
+
+ /* Request protocol driver to fill-in the rest */
+ if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
+ struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
+ void *cookie = cdev->ops_cookie;
+
+ if (ops->get_login_failures)
+ stats->login_failure = ops->get_login_failures(cookie);
+ }
+}
+
+static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
+ .common = &qed_common_ops_pass,
+ .ll2 = &qed_ll2_ops_pass,
+ .fill_dev_info = &qed_fill_fcoe_dev_info,
+ .start = &qed_fcoe_start,
+ .stop = &qed_fcoe_stop,
+ .register_ops = &qed_register_fcoe_ops,
+ .acquire_conn = &qed_fcoe_acquire_conn,
+ .release_conn = &qed_fcoe_release_conn,
+ .offload_conn = &qed_fcoe_offload_conn,
+ .destroy_conn = &qed_fcoe_destroy_conn,
+ .get_stats = &qed_fcoe_stats,
+};
+
+const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
+{
+ return &qed_fcoe_ops_pass;
+}
+EXPORT_SYMBOL(qed_get_fcoe_ops);
+
+void qed_put_fcoe_ops(void)
+{
+}
+EXPORT_SYMBOL(qed_put_fcoe_ops);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_fcoe.h b/drivers/net/ethernet/qlogic/qed/qed_fcoe.h
new file mode 100644
index 0000000..472af34
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_fcoe.h
@@ -0,0 +1,87 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 QLogic Corporation
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and /or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _QED_FCOE_H
+#define _QED_FCOE_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/qed/qed_fcoe_if.h>
+#include <linux/qed/qed_chain.h>
+#include "qed.h"
+#include "qed_hsi.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+
+struct qed_fcoe_info {
+ spinlock_t lock; /* Connection resources. */
+ struct list_head free_list;
+};
+
+#if IS_ENABLED(CONFIG_QED_FCOE)
+struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info);
+
+void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info);
+void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats);
+#else /* CONFIG_QED_FCOE */
+static inline struct qed_fcoe_info *
+qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
+{
+ return NULL;
+}
+
+static inline void qed_fcoe_setup(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_info *p_fcoe_info)
+{
+}
+
+static inline void qed_fcoe_free(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_info *p_fcoe_info)
+{
+}
+
+static inline void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats)
+{
+}
+#endif /* CONFIG_QED_FCOE */
+
+#ifdef CONFIG_QED_LL2
+extern const struct qed_common_ops qed_common_ops_pass;
+extern const struct qed_ll2_ops qed_ll2_ops_pass;
+#endif
+
+#endif /* _QED_FCOE_H */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index 5d31189..37c2bfb 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -43,10 +43,12 @@
#include <linux/qed/common_hsi.h>
#include <linux/qed/storage_common.h>
#include <linux/qed/tcp_common.h>
+#include <linux/qed/fcoe_common.h>
#include <linux/qed/eth_common.h>
#include <linux/qed/iscsi_common.h>
#include <linux/qed/rdma_common.h>
#include <linux/qed/roce_common.h>
+#include <linux/qed/qed_fcoe_if.h>

struct qed_hwfn;
struct qed_ptt;
@@ -937,7 +939,7 @@ struct mstorm_vf_zone {
enum personality_type {
BAD_PERSONALITY_TYP,
PERSONALITY_ISCSI,
- PERSONALITY_RESERVED2,
+ PERSONALITY_FCOE,
PERSONALITY_RDMA_AND_ETH,
PERSONALITY_RESERVED3,
PERSONALITY_CORE,
@@ -3473,6 +3475,10 @@ void qed_set_geneve_enable(struct qed_hwfn *p_hwfn,
#define TSTORM_RDMA_QUEUE_STAT_OFFSET(rdma_stat_counter_id) \
(IRO[46].base + ((rdma_stat_counter_id) * IRO[46].m1))
#define TSTORM_RDMA_QUEUE_STAT_SIZE (IRO[46].size)
+#define TSTORM_FCOE_RX_STATS_OFFSET(pf_id) \
+ (IRO[43].base + ((pf_id) * IRO[43].m1))
+#define PSTORM_FCOE_TX_STATS_OFFSET(pf_id) \
+ (IRO[44].base + ((pf_id) * IRO[44].m1))

static const struct iro iro_arr[47] = {
{0x0, 0x0, 0x0, 0x0, 0x8},
@@ -7407,6 +7413,769 @@ struct ystorm_roce_resp_conn_ag_ctx {
__le32 reg3;
};

+struct ystorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 cos;
+ u8 conf_version;
+ u8 eth_hdr_size;
+ __le16 stat_ram_addr;
+ __le16 mtu;
+ __le16 max_fc_payload_len;
+ __le16 tx_max_fc_pay_len;
+ u8 fcp_cmd_size;
+ u8 fcp_rsp_size;
+ __le16 mss;
+ struct regpair reserved;
+ u8 protection_info_flags;
+#define YSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_SHIFT 0
+#define YSTORM_FCOE_CONN_ST_CTX_VALID_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_VALID_SHIFT 1
+#define YSTORM_FCOE_CONN_ST_CTX_RESERVED1_MASK 0x3F
+#define YSTORM_FCOE_CONN_ST_CTX_RESERVED1_SHIFT 2
+ u8 dst_protection_per_mss;
+ u8 src_protection_per_mss;
+ u8 ptu_log_page_size;
+ u8 flags;
+#define YSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 0
+#define YSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_SHIFT 1
+#define YSTORM_FCOE_CONN_ST_CTX_RSRV_MASK 0x3F
+#define YSTORM_FCOE_CONN_ST_CTX_RSRV_SHIFT 2
+ u8 fcp_xfer_size;
+ u8 reserved3[2];
+};
+
+struct fcoe_vlan_fields {
+ __le16 fields;
+#define FCOE_VLAN_FIELDS_VID_MASK 0xFFF
+#define FCOE_VLAN_FIELDS_VID_SHIFT 0
+#define FCOE_VLAN_FIELDS_CLI_MASK 0x1
+#define FCOE_VLAN_FIELDS_CLI_SHIFT 12
+#define FCOE_VLAN_FIELDS_PRI_MASK 0x7
+#define FCOE_VLAN_FIELDS_PRI_SHIFT 13
+};
+
+union fcoe_vlan_field_union {
+ struct fcoe_vlan_fields fields;
+ __le16 val;
+};
+
+union fcoe_vlan_vif_field_union {
+ union fcoe_vlan_field_union vlan;
+ __le16 vif;
+};
+
+struct pstorm_fcoe_eth_context_section {
+ u8 remote_addr_3;
+ u8 remote_addr_2;
+ u8 remote_addr_1;
+ u8 remote_addr_0;
+ u8 local_addr_1;
+ u8 local_addr_0;
+ u8 remote_addr_5;
+ u8 remote_addr_4;
+ u8 local_addr_5;
+ u8 local_addr_4;
+ u8 local_addr_3;
+ u8 local_addr_2;
+ union fcoe_vlan_vif_field_union vif_outer_vlan;
+ __le16 vif_outer_eth_type;
+ union fcoe_vlan_vif_field_union inner_vlan;
+ __le16 inner_eth_type;
+};
+
+struct pstorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 cos;
+ u8 conf_version;
+ u8 rsrv;
+ __le16 stat_ram_addr;
+ __le16 mss;
+ struct regpair abts_cleanup_addr;
+ struct pstorm_fcoe_eth_context_section eth;
+ u8 sid_2;
+ u8 sid_1;
+ u8 sid_0;
+ u8 flags;
+#define PSTORM_FCOE_CONN_ST_CTX_VNTAG_VLAN_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_VNTAG_VLAN_SHIFT 0
+#define PSTORM_FCOE_CONN_ST_CTX_SUPPORT_REC_RR_TOV_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_SUPPORT_REC_RR_TOV_SHIFT 1
+#define PSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 2
+#define PSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_SHIFT 3
+#define PSTORM_FCOE_CONN_ST_CTX_RESERVED_MASK 0xF
+#define PSTORM_FCOE_CONN_ST_CTX_RESERVED_SHIFT 4
+ u8 did_2;
+ u8 did_1;
+ u8 did_0;
+ u8 src_mac_index;
+ __le16 rec_rr_tov_val;
+ u8 q_relative_offset;
+ u8 reserved1;
+};
+
+struct xstorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 src_mac_index;
+ u8 conf_version;
+ u8 cached_wqes_avail;
+ __le16 stat_ram_addr;
+ u8 flags;
+#define XSTORM_FCOE_CONN_ST_CTX_SQ_DEFERRED_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_SQ_DEFERRED_SHIFT 0
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_ORIG_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_ORIG_SHIFT 2
+#define XSTORM_FCOE_CONN_ST_CTX_LAST_QUEUE_HANDLED_MASK 0x3
+#define XSTORM_FCOE_CONN_ST_CTX_LAST_QUEUE_HANDLED_SHIFT 3
+#define XSTORM_FCOE_CONN_ST_CTX_RSRV_MASK 0x7
+#define XSTORM_FCOE_CONN_ST_CTX_RSRV_SHIFT 5
+ u8 cached_wqes_offset;
+ u8 reserved2;
+ u8 eth_hdr_size;
+ u8 seq_id;
+ u8 max_conc_seqs;
+ __le16 num_pages_in_pbl;
+ __le16 reserved;
+ struct regpair sq_pbl_addr;
+ struct regpair sq_curr_page_addr;
+ struct regpair sq_next_page_addr;
+ struct regpair xferq_pbl_addr;
+ struct regpair xferq_curr_page_addr;
+ struct regpair xferq_next_page_addr;
+ struct regpair respq_pbl_addr;
+ struct regpair respq_curr_page_addr;
+ struct regpair respq_next_page_addr;
+ __le16 mtu;
+ __le16 tx_max_fc_pay_len;
+ __le16 max_fc_payload_len;
+ __le16 min_frame_size;
+ __le16 sq_pbl_next_index;
+ __le16 respq_pbl_next_index;
+ u8 fcp_cmd_byte_credit;
+ u8 fcp_rsp_byte_credit;
+ __le16 protection_info;
+#define XSTORM_FCOE_CONN_ST_CTX_PROTECTION_PERF_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_PROTECTION_PERF_SHIFT 0
+#define XSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_SHIFT 1
+#define XSTORM_FCOE_CONN_ST_CTX_VALID_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_VALID_SHIFT 2
+#define XSTORM_FCOE_CONN_ST_CTX_FRAME_PROT_ALIGNED_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_FRAME_PROT_ALIGNED_SHIFT 3
+#define XSTORM_FCOE_CONN_ST_CTX_RESERVED3_MASK 0xF
+#define XSTORM_FCOE_CONN_ST_CTX_RESERVED3_SHIFT 4
+#define XSTORM_FCOE_CONN_ST_CTX_DST_PROTECTION_PER_MSS_MASK 0xFF
+#define XSTORM_FCOE_CONN_ST_CTX_DST_PROTECTION_PER_MSS_SHIFT 8
+ __le16 xferq_pbl_next_index;
+ __le16 page_size;
+ u8 mid_seq;
+ u8 fcp_xfer_byte_credit;
+ u8 reserved1[2];
+ struct fcoe_wqe cached_wqes[16];
+};
+
+struct xstorm_fcoe_conn_ag_ctx {
+ u8 reserved0;
+ u8 fcoe_state;
+ u8 flags0;
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED1_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED1_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED2_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED2_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM3_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED3_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED4_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED4_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED5_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED5_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED6_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED6_SHIFT 7
+ u8 flags1;
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED7_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED7_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED8_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED8_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED9_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED9_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_BIT11_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT11_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_BIT12_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT12_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_BIT13_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT13_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_BIT14_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT14_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_BIT15_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT15_SHIFT 7
+ u8 flags2;
+#define XSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF3_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF3_SHIFT 6
+ u8 flags3;
+#define XSTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF7_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF7_SHIFT 6
+ u8 flags4;
+#define XSTORM_FCOE_CONN_AG_CTX_CF8_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF8_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF9_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF9_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF10_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF10_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF11_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF11_SHIFT 6
+ u8 flags5;
+#define XSTORM_FCOE_CONN_AG_CTX_CF12_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF12_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF13_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF13_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF14_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF14_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF15_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF15_SHIFT 6
+ u8 flags6;
+#define XSTORM_FCOE_CONN_AG_CTX_CF16_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF16_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF17_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF17_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF18_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF18_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_SHIFT 6
+ u8 flags7;
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED10_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED10_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 7
+ u8 flags8;
+#define XSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF3EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF3EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF7EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF7EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF8EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF8EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF9EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF9EN_SHIFT 7
+ u8 flags9;
+#define XSTORM_FCOE_CONN_AG_CTX_CF10EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF10EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF11EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF11EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_CF12EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF12EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF13EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF13EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_CF14EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF14EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF15EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF15EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF16EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF16EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF17EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF17EN_SHIFT 7
+ u8 flags10;
+#define XSTORM_FCOE_CONN_AG_CTX_CF18EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF18EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED11_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED11_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF23EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF23EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED12_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED12_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED13_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED13_SHIFT 7
+ u8 flags11;
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED14_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED14_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED15_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED15_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED16_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED16_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED1_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED1_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_XFERQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_XFERQ_DECISION_EN_SHIFT 7
+ u8 flags12;
+#define XSTORM_FCOE_CONN_AG_CTX_SQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_SQ_DECISION_EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RULE11EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE11EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED2_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED2_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED3_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RULE14EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE14EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RULE15EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE15EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RULE16EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE16EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RULE17EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE17EN_SHIFT 7
+ u8 flags13;
+#define XSTORM_FCOE_CONN_AG_CTX_RESPQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESPQ_DECISION_EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RULE19EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE19EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED4_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED4_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED5_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED5_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED6_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED6_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED7_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED7_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED8_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED8_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED9_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED9_SHIFT 7
+ u8 flags14;
+#define XSTORM_FCOE_CONN_AG_CTX_BIT16_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT16_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_BIT17_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT17_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT18_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT18_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_BIT19_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT19_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_BIT20_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT20_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_BIT21_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT21_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF23_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF23_SHIFT 6
+ u8 byte2;
+ __le16 physical_q0;
+ __le16 word1;
+ __le16 word2;
+ __le16 sq_cons;
+ __le16 sq_prod;
+ __le16 xferq_prod;
+ __le16 xferq_cons;
+ u8 byte3;
+ u8 byte4;
+ u8 byte5;
+ u8 byte6;
+ __le32 remain_io;
+ __le32 reg1;
+ __le32 reg2;
+ __le32 reg3;
+ __le32 reg4;
+ __le32 reg5;
+ __le32 reg6;
+ __le16 respq_prod;
+ __le16 respq_cons;
+ __le16 word9;
+ __le16 word10;
+ __le32 reg7;
+ __le32 reg8;
+};
+
+struct ustorm_fcoe_conn_st_ctx {
+ struct regpair respq_pbl_addr;
+ __le16 num_pages_in_pbl;
+ u8 ptu_log_page_size;
+ u8 log_page_size;
+ __le16 respq_prod;
+ u8 reserved[2];
+};
+
+struct tstorm_fcoe_conn_ag_ctx {
+ u8 reserved0;
+ u8 fcoe_state;
+ u8 flags0;
+#define TSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT2_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT2_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_BIT3_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT3_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_BIT4_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT4_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_BIT5_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT5_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_SHIFT 6
+ u8 flags1;
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 6
+ u8 flags2;
+#define TSTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_CF7_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF7_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF8_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF8_SHIFT 6
+ u8 flags3;
+#define TSTORM_FCOE_CONN_AG_CTX_CF9_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF9_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF10_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF10_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_EN_SHIFT 7
+ u8 flags4;
+#define TSTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_CF7EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF7EN_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_CF8EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF8EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF9EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF9EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_CF10EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF10EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 7
+ u8 flags5;
+#define TSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_RULE8EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE8EN_SHIFT 7
+ __le32 reg0;
+ __le32 reg1;
+};
+
+struct ustorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define USTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define USTORM_FCOE_CONN_AG_CTX_CF3_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF3_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 6
+ u8 flags2;
+#define USTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF3EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF3EN_SHIFT 3
+#define USTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 5
+#define USTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 6
+#define USTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 7
+ u8 flags3;
+#define USTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 3
+#define USTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 5
+#define USTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 6
+#define USTORM_FCOE_CONN_AG_CTX_RULE8EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE8EN_SHIFT 7
+ u8 byte2;
+ u8 byte3;
+ __le16 word0;
+ __le16 word1;
+ __le32 reg0;
+ __le32 reg1;
+ __le32 reg2;
+ __le32 reg3;
+ __le16 word2;
+ __le16 word3;
+};
+
+struct tstorm_fcoe_conn_st_ctx {
+ __le16 stat_ram_addr;
+ __le16 rx_max_fc_payload_len;
+ __le16 e_d_tov_val;
+ u8 flags;
+#define TSTORM_FCOE_CONN_ST_CTX_INC_SEQ_CNT_MASK 0x1
+#define TSTORM_FCOE_CONN_ST_CTX_INC_SEQ_CNT_SHIFT 0
+#define TSTORM_FCOE_CONN_ST_CTX_SUPPORT_CONF_MASK 0x1
+#define TSTORM_FCOE_CONN_ST_CTX_SUPPORT_CONF_SHIFT 1
+#define TSTORM_FCOE_CONN_ST_CTX_DEF_Q_IDX_MASK 0x3F
+#define TSTORM_FCOE_CONN_ST_CTX_DEF_Q_IDX_SHIFT 2
+ u8 timers_cleanup_invocation_cnt;
+ __le32 reserved1[2];
+ __le32 dst_mac_address_bytes0to3;
+ __le16 dst_mac_address_bytes4to5;
+ __le16 ramrod_echo;
+ u8 flags1;
+#define TSTORM_FCOE_CONN_ST_CTX_MODE_MASK 0x3
+#define TSTORM_FCOE_CONN_ST_CTX_MODE_SHIFT 0
+#define TSTORM_FCOE_CONN_ST_CTX_RESERVED_MASK 0x3F
+#define TSTORM_FCOE_CONN_ST_CTX_RESERVED_SHIFT 2
+ u8 q_relative_offset;
+ u8 bdq_resource_id;
+ u8 reserved0[5];
+};
+
+struct mstorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define MSTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define MSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define MSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define MSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define MSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define MSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define MSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define MSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define MSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 3
+#define MSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 4
+#define MSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 5
+#define MSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 6
+#define MSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 7
+ __le16 word0;
+ __le16 word1;
+ __le32 reg0;
+ __le32 reg1;
+};
+
+struct fcoe_mstorm_fcoe_conn_st_ctx_fp {
+ __le16 xfer_prod;
+ __le16 reserved1;
+ u8 protection_info;
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_SUPPORT_PROTECTION_MASK 0x1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_SUPPORT_PROTECTION_SHIFT 0
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_VALID_MASK 0x1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_VALID_SHIFT 1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_RESERVED0_MASK 0x3F
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_RESERVED0_SHIFT 2
+ u8 q_relative_offset;
+ u8 reserved2[2];
+};
+
+struct fcoe_mstorm_fcoe_conn_st_ctx_non_fp {
+ __le16 conn_id;
+ __le16 stat_ram_addr;
+ __le16 num_pages_in_pbl;
+ u8 ptu_log_page_size;
+ u8 log_page_size;
+ __le16 unsolicited_cq_count;
+ __le16 cmdq_count;
+ u8 bdq_resource_id;
+ u8 reserved0[3];
+ struct regpair xferq_pbl_addr;
+ struct regpair reserved1;
+ struct regpair reserved2[3];
+};
+
+struct mstorm_fcoe_conn_st_ctx {
+ struct fcoe_mstorm_fcoe_conn_st_ctx_fp fp;
+ struct fcoe_mstorm_fcoe_conn_st_ctx_non_fp non_fp;
+};
+
+struct fcoe_conn_context {
+ struct ystorm_fcoe_conn_st_ctx ystorm_st_context;
+ struct pstorm_fcoe_conn_st_ctx pstorm_st_context;
+ struct regpair pstorm_st_padding[2];
+ struct xstorm_fcoe_conn_st_ctx xstorm_st_context;
+ struct xstorm_fcoe_conn_ag_ctx xstorm_ag_context;
+ struct regpair xstorm_ag_padding[6];
+ struct ustorm_fcoe_conn_st_ctx ustorm_st_context;
+ struct regpair ustorm_st_padding[2];
+ struct tstorm_fcoe_conn_ag_ctx tstorm_ag_context;
+ struct regpair tstorm_ag_padding[2];
+ struct timers_context timer_context;
+ struct ustorm_fcoe_conn_ag_ctx ustorm_ag_context;
+ struct tstorm_fcoe_conn_st_ctx tstorm_st_context;
+ struct mstorm_fcoe_conn_ag_ctx mstorm_ag_context;
+ struct mstorm_fcoe_conn_st_ctx mstorm_st_context;
+};
+
+struct fcoe_conn_offload_ramrod_params {
+ struct fcoe_conn_offload_ramrod_data offload_ramrod_data;
+};
+
+struct fcoe_conn_terminate_ramrod_params {
+ struct fcoe_conn_terminate_ramrod_data terminate_ramrod_data;
+};
+
+enum fcoe_event_type {
+ FCOE_EVENT_INIT_FUNC,
+ FCOE_EVENT_DESTROY_FUNC,
+ FCOE_EVENT_STAT_FUNC,
+ FCOE_EVENT_OFFLOAD_CONN,
+ FCOE_EVENT_TERMINATE_CONN,
+ FCOE_EVENT_ERROR,
+ MAX_FCOE_EVENT_TYPE
+};
+
+struct fcoe_init_ramrod_params {
+ struct fcoe_init_func_ramrod_data init_ramrod_data;
+};
+
+enum fcoe_ramrod_cmd_id {
+ FCOE_RAMROD_CMD_ID_INIT_FUNC,
+ FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
+ FCOE_RAMROD_CMD_ID_STAT_FUNC,
+ FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
+ FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
+ MAX_FCOE_RAMROD_CMD_ID
+};
+
+struct fcoe_stat_ramrod_params {
+ struct fcoe_stat_ramrod_data stat_ramrod_data;
+};
+
+struct ystorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define YSTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define YSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define YSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define YSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define YSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define YSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define YSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define YSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define YSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 3
+#define YSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 4
+#define YSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 5
+#define YSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 6
+#define YSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 7
+ u8 byte2;
+ u8 byte3;
+ __le16 word0;
+ __le32 reg0;
+ __le32 reg1;
+ __le16 word1;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le32 reg2;
+ __le32 reg3;
+};
+
struct ystorm_iscsi_conn_st_ctx {
__le32 reserved[4];
};
@@ -8435,6 +9204,7 @@ struct public_func {
#define FUNC_MF_CFG_PROTOCOL_SHIFT 4
#define FUNC_MF_CFG_PROTOCOL_ETHERNET 0x00000000
#define FUNC_MF_CFG_PROTOCOL_ISCSI 0x00000010
+#define FUNC_MF_CFG_PROTOCOL_FCOE 0x00000020
#define FUNC_MF_CFG_PROTOCOL_ROCE 0x00000030
#define FUNC_MF_CFG_PROTOCOL_MAX 0x00000030

@@ -8529,6 +9299,13 @@ struct lan_stats_stc {
u32 rserved;
};

+struct fcoe_stats_stc {
+ u64 rx_pkts;
+ u64 tx_pkts;
+ u32 fcs_err;
+ u32 login_failure;
+};
+
struct ocbb_data_stc {
u32 ocbb_host_addr;
u32 ocsd_host_addr;
@@ -8602,6 +9379,7 @@ struct resource_info {
struct drv_version_stc drv_version;

struct lan_stats_stc lan_stats;
+ struct fcoe_stats_stc fcoe_stats;
struct ocbb_data_stc ocbb_info;
struct temperature_status_stc temp_info;
struct resource_info resource;
@@ -8905,6 +9683,7 @@ struct nvm_cfg1_glob {
u32 misc_sig;
u32 device_capabilities;
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET 0x1
+#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE 0x2
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI 0x4
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE 0x8
u32 power_dissipated;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c
index 1f60651..899cad7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hw.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c
@@ -841,6 +841,9 @@ u16 qed_get_qm_pq(struct qed_hwfn *p_hwfn,
if (pq_id > p_hwfn->qm_info.num_pf_rls)
pq_id = p_hwfn->qm_info.offload_pq;
break;
+ case PROTOCOLID_FCOE:
+ pq_id = p_hwfn->qm_info.offload_pq;
+ break;
default:
pq_id = 0;
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 02c5d47..9a0b9af 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -1130,6 +1130,9 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->qm_pq_id = cpu_to_le16(pq_id);

switch (conn_type) {
+ case QED_LL2_TYPE_FCOE:
+ p_ramrod->conn_type = PROTOCOLID_FCOE;
+ break;
case QED_LL2_TYPE_ISCSI:
case QED_LL2_TYPE_ISCSI_OOO:
p_ramrod->conn_type = PROTOCOLID_ISCSI;
@@ -1458,6 +1461,15 @@ int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)

qed_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);

+ if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_FCOE) {
+ qed_llh_add_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8906, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ qed_llh_add_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8914, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ }
+
return rc;
}

@@ -1831,6 +1843,15 @@ int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_ISCSI_OOO)
qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);

+ if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_FCOE) {
+ qed_llh_remove_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8906, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ qed_llh_remove_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8914, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ }
+
return rc;
}

@@ -2039,6 +2060,10 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
}

switch (QED_LEADING_HWFN(cdev)->hw_info.personality) {
+ case QED_PCI_FCOE:
+ conn_type = QED_LL2_TYPE_FCOE;
+ gsi_enable = 0;
+ break;
case QED_PCI_ISCSI:
conn_type = QED_LL2_TYPE_ISCSI;
gsi_enable = 0;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index db3e4fc..31a4090 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -54,7 +54,7 @@ enum qed_ll2_roce_flavor_type {
};

enum qed_ll2_conn_type {
- QED_LL2_TYPE_RESERVED,
+ QED_LL2_TYPE_FCOE,
QED_LL2_TYPE_ISCSI,
QED_LL2_TYPE_TEST,
QED_LL2_TYPE_ISCSI_OOO,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 93eee83..e9c26d7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -53,9 +53,11 @@
#include "qed_sp.h"
#include "qed_dev_api.h"
#include "qed_ll2.h"
+#include "qed_fcoe.h"
#include "qed_mcp.h"
#include "qed_hw.h"
#include "qed_selftest.h"
+#include "qed_debug.h"

#define QED_ROCE_QPS (8192)
#define QED_ROCE_DPIS (8)
@@ -1588,6 +1590,8 @@ static int qed_update_mtu(struct qed_dev *cdev, u16 mtu)
.sb_release = &qed_sb_release,
.simd_handler_config = &qed_simd_handler_config,
.simd_handler_clean = &qed_simd_handler_clean,
+ .dbg_grc = &qed_dbg_grc,
+ .dbg_grc_size = &qed_dbg_grc_size,
.can_link_change = &qed_can_link_change,
.set_link = &qed_set_link,
.get_link = &qed_get_current_link,
@@ -1621,6 +1625,9 @@ void qed_get_protocol_stats(struct qed_dev *cdev,
stats->lan_stats.ucast_tx_pkts = eth_stats.tx_ucast_pkts;
stats->lan_stats.fcs_err = -1;
break;
+ case QED_MCP_FCOE_STATS:
+ qed_get_protocol_stats_fcoe(cdev, &stats->fcoe_stats);
+ break;
default:
DP_ERR(cdev, "Invalid protocol type = %d\n", type);
return;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index c8a8775..7624a38 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -1130,6 +1130,9 @@ int qed_mcp_get_media_type(struct qed_dev *cdev, u32 *p_media_type)
case FUNC_MF_CFG_PROTOCOL_ISCSI:
*p_proto = QED_PCI_ISCSI;
break;
+ case FUNC_MF_CFG_PROTOCOL_FCOE:
+ *p_proto = QED_PCI_FCOE;
+ break;
case FUNC_MF_CFG_PROTOCOL_ROCE:
DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n");
/* Fallthrough */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 363dce0..0792224 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -37,6 +37,7 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/qed/qed_fcoe_if.h>
#include "qed_hsi.h"

struct qed_mcp_link_speed_params {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index b6722c6..cdd6700 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -110,6 +110,8 @@
0x1e80000UL
#define NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF \
0x5011f4UL
+#define PRS_REG_SEARCH_RESP_INITIATOR_TYPE \
+ 0x1f0164UL
#define PRS_REG_SEARCH_TCP \
0x1f0400UL
#define PRS_REG_SEARCH_UDP \
@@ -120,6 +122,12 @@
0x1f040cUL
#define PRS_REG_SEARCH_OPENFLOW \
0x1f0434UL
+#define PRS_REG_SEARCH_TAG1 \
+ 0x1f0444UL
+#define PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST \
+ 0x1f0a0cUL
+#define PRS_REG_SEARCH_TCP_FIRST_FRAG \
+ 0x1f0410UL
#define TM_REG_PF_ENABLE_CONN \
0x2c043cUL
#define TM_REG_PF_ENABLE_TASK \
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp.h b/drivers/net/ethernet/qlogic/qed/qed_sp.h
index 0438829..30393ff 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp.h
@@ -109,6 +109,10 @@ int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn,
struct rdma_srq_destroy_ramrod_data rdma_destroy_srq;
struct rdma_srq_modify_ramrod_data rdma_modify_srq;
struct roce_init_func_ramrod_data roce_init_func;
+ struct fcoe_init_ramrod_params fcoe_init;
+ struct fcoe_conn_offload_ramrod_params fcoe_conn_ofld;
+ struct fcoe_conn_terminate_ramrod_params fcoe_conn_terminate;
+ struct fcoe_stat_ramrod_params fcoe_stat;

struct iscsi_slow_path_hdr iscsi_empty;
struct iscsi_init_ramrod_params iscsi_init;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
index 097a729..6fb80f9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
@@ -386,6 +386,9 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
case QED_PCI_ETH:
p_ramrod->personality = PERSONALITY_ETH;
break;
+ case QED_PCI_FCOE:
+ p_ramrod->personality = PERSONALITY_FCOE;
+ break;
case QED_PCI_ISCSI:
p_ramrod->personality = PERSONALITY_ISCSI;
break;
diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index c33080b..52966b9 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -62,6 +62,7 @@
#define COMMON_QUEUE_ENTRY_MAX_BYTE_SIZE 64

#define ISCSI_CDU_TASK_SEG_TYPE 0
+#define FCOE_CDU_TASK_SEG_TYPE 0
#define RDMA_CDU_TASK_SEG_TYPE 1

#define FW_ASSERT_GENERAL_ATTN_IDX 32
@@ -205,6 +206,9 @@
#define DQ_XCM_ETH_TX_BD_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
#define DQ_XCM_ETH_TX_BD_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
#define DQ_XCM_ETH_GO_TO_BD_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD5
+#define DQ_XCM_FCOE_SQ_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
+#define DQ_XCM_FCOE_SQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
+#define DQ_XCM_FCOE_X_FERQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD5
#define DQ_XCM_ISCSI_SQ_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
#define DQ_XCM_ISCSI_SQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
#define DQ_XCM_ISCSI_MORE_TO_SEND_SEQ_CMD DQ_XCM_AGG_VAL_SEL_REG3
@@ -261,6 +265,7 @@
#define DQ_XCM_ETH_TERMINATE_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF19)
#define DQ_XCM_ETH_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ETH_TPH_EN_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF23)
+#define DQ_XCM_FCOE_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ISCSI_DQ_FLUSH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF19)
#define DQ_XCM_ISCSI_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ISCSI_PROC_ONLY_CLEANUP_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF23)
@@ -291,6 +296,9 @@
#define DQ_TCM_AGG_FLG_SHIFT_CF6 6
#define DQ_TCM_AGG_FLG_SHIFT_CF7 7
/* TCM agg counter flag selection (FW) */
+#define DQ_TCM_FCOE_FLUSH_Q0_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF1)
+#define DQ_TCM_FCOE_DUMMY_TIMER_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF2)
+#define DQ_TCM_FCOE_TIMER_STOP_ALL_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF3)
#define DQ_TCM_ISCSI_FLUSH_Q0_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF1)
#define DQ_TCM_ISCSI_TIMER_STOP_ALL_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF3)

@@ -728,7 +736,7 @@ enum mf_mode {
/* Per-protocol connection types */
enum protocol_type {
PROTOCOLID_ISCSI,
- PROTOCOLID_RESERVED2,
+ PROTOCOLID_FCOE,
PROTOCOLID_ROCE,
PROTOCOLID_CORE,
PROTOCOLID_ETH,
diff --git a/include/linux/qed/fcoe_common.h b/include/linux/qed/fcoe_common.h
new file mode 100644
index 0000000..2e417a4
--- /dev/null
+++ b/include/linux/qed/fcoe_common.h
@@ -0,0 +1,715 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef __FCOE_COMMON__
+#define __FCOE_COMMON__
+/*********************/
+/* FCOE FW CONSTANTS */
+/*********************/
+
+#define FC_ABTS_REPLY_MAX_PAYLOAD_LEN 12
+#define FCOE_MAX_SIZE_FCP_DATA_SUPER (8600)
+
+struct fcoe_abts_pkt {
+ __le32 abts_rsp_fc_payload_lo;
+ __le16 abts_rsp_rx_id;
+ u8 abts_rsp_rctl;
+ u8 reserved2;
+};
+
+/* FCoE additional WQE (Sq/XferQ) information */
+union fcoe_additional_info_union {
+ __le32 previous_tid;
+ __le32 parent_tid;
+ __le32 burst_length;
+ __le32 seq_rec_updated_offset;
+};
+
+struct fcoe_exp_ro {
+ __le32 data_offset;
+ __le32 reserved;
+};
+
+union fcoe_cleanup_addr_exp_ro_union {
+ struct regpair abts_rsp_fc_payload_hi;
+ struct fcoe_exp_ro exp_ro;
+};
+
+/* FCoE Ramrod Command IDs */
+enum fcoe_completion_status {
+ FCOE_COMPLETION_STATUS_SUCCESS,
+ FCOE_COMPLETION_STATUS_FCOE_VER_ERR,
+ FCOE_COMPLETION_STATUS_SRC_MAC_ADD_ARR_ERR,
+ MAX_FCOE_COMPLETION_STATUS
+};
+
+struct fc_addr_nw {
+ u8 addr_lo;
+ u8 addr_mid;
+ u8 addr_hi;
+};
+
+/* FCoE connection offload */
+struct fcoe_conn_offload_ramrod_data {
+ struct regpair sq_pbl_addr;
+ struct regpair sq_curr_page_addr;
+ struct regpair sq_next_page_addr;
+ struct regpair xferq_pbl_addr;
+ struct regpair xferq_curr_page_addr;
+ struct regpair xferq_next_page_addr;
+ struct regpair respq_pbl_addr;
+ struct regpair respq_curr_page_addr;
+ struct regpair respq_next_page_addr;
+ __le16 dst_mac_addr_lo;
+ __le16 dst_mac_addr_mid;
+ __le16 dst_mac_addr_hi;
+ __le16 src_mac_addr_lo;
+ __le16 src_mac_addr_mid;
+ __le16 src_mac_addr_hi;
+ __le16 tx_max_fc_pay_len;
+ __le16 e_d_tov_timer_val;
+ __le16 rx_max_fc_pay_len;
+ __le16 vlan_tag;
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_MASK 0xFFF
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT 0
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_CFI_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_CFI_SHIFT 12
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_MASK 0x7
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT 13
+ __le16 physical_q0;
+ __le16 rec_rr_tov_timer_val;
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONT_INCR_SEQ_CNT_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONT_INCR_SEQ_CNT_SHIFT 0
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT 1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT 2
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT 3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_MODE_MASK 0x3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_MODE_SHIFT 4
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_RESERVED0_MASK 0x3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_RESERVED0_SHIFT 6
+ __le16 conn_id;
+ u8 def_q_idx;
+ u8 reserved[5];
+};
+
+/* FCoE terminate connection request */
+struct fcoe_conn_terminate_ramrod_data {
+ struct regpair terminate_params_addr;
+};
+
+struct fcoe_fast_sgl_ctx {
+ struct regpair sgl_start_addr;
+ __le32 sgl_byte_offset;
+ __le16 task_reuse_cnt;
+ __le16 init_offset_in_first_sge;
+};
+
+struct fcoe_slow_sgl_ctx {
+ struct regpair base_sgl_addr;
+ __le16 curr_sge_off;
+ __le16 remainder_num_sges;
+ __le16 curr_sgl_index;
+ __le16 reserved;
+};
+
+struct fcoe_sge {
+ struct regpair sge_addr;
+ __le16 size;
+ __le16 reserved0;
+ u8 reserved1[3];
+ u8 is_valid_sge;
+};
+
+union fcoe_data_desc_ctx {
+ struct fcoe_fast_sgl_ctx fast;
+ struct fcoe_slow_sgl_ctx slow;
+ struct fcoe_sge single_sge;
+};
+
+union fcoe_dix_desc_ctx {
+ struct fcoe_slow_sgl_ctx dix_sgl;
+ struct fcoe_sge cached_dix_sge;
+};
+
+struct fcoe_fcp_cmd_payload {
+ __le32 opaque[8];
+};
+
+struct fcoe_fcp_rsp_payload {
+ __le32 opaque[6];
+};
+
+struct fcoe_fcp_xfer_payload {
+ __le32 opaque[3];
+};
+
+/* FCoE firmware function init */
+struct fcoe_init_func_ramrod_data {
+ struct scsi_init_func_params func_params;
+ struct scsi_init_func_queues q_params;
+ __le16 mtu;
+ __le16 sq_num_pages_in_pbl;
+ __le32 reserved;
+};
+
+/* FCoE: Mode of the connection: Target or Initiator or both */
+enum fcoe_mode_type {
+ FCOE_INITIATOR_MODE = 0x0,
+ FCOE_TARGET_MODE = 0x1,
+ FCOE_BOTH_OR_NOT_CHOSEN = 0x3,
+ MAX_FCOE_MODE_TYPE
+};
+
+struct fcoe_mstorm_fcoe_task_st_ctx_fp {
+ __le16 flags;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_RSRV0_MASK 0x7FFF
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_RSRV0_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_MP_INCLUDE_FC_HEADER_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_MP_INCLUDE_FC_HEADER_SHIFT 15
+ __le16 difDataResidue;
+ __le16 parent_id;
+ __le16 single_sge_saved_offset;
+ __le32 data_2_trns_rem;
+ __le32 offset_in_io;
+ union fcoe_dix_desc_ctx dix_desc;
+ union fcoe_data_desc_ctx data_desc;
+};
+
+struct fcoe_mstorm_fcoe_task_st_ctx_non_fp {
+ __le16 flags;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HOST_INTERFACE_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HOST_INTERFACE_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_TO_PEER_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_TO_PEER_SHIFT 2
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_APP_TAG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_APP_TAG_SHIFT 3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_INTERVAL_SIZE_LOG_MASK 0xF
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_INTERVAL_SIZE_LOG_SHIFT 4
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_BLOCK_SIZE_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_BLOCK_SIZE_SHIFT 8
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RESERVED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RESERVED_SHIFT 10
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HAS_FIRST_PACKET_ARRIVED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HAS_FIRST_PACKET_ARRIVED_SHIFT 11
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_REF_TAG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_REF_TAG_SHIFT 12
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_CACHED_SGE_FLG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_CACHED_SGE_FLG_SHIFT 13
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_OFFSET_IN_IO_VALID_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_OFFSET_IN_IO_VALID_SHIFT 14
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_SUPPORTED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_SUPPORTED_SHIFT 15
+ u8 tx_rx_sgl_mode;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE_MASK 0x7
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE_MASK 0x7
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE_SHIFT 3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RSRV1_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RSRV1_SHIFT 6
+ u8 rsrv2;
+ __le32 num_prm_zero_read;
+ struct regpair rsp_buf_addr;
+};
+
+struct fcoe_rx_stat {
+ struct regpair fcoe_rx_byte_cnt;
+ struct regpair fcoe_rx_data_pkt_cnt;
+ struct regpair fcoe_rx_xfer_pkt_cnt;
+ struct regpair fcoe_rx_other_pkt_cnt;
+ __le32 fcoe_silent_drop_pkt_cmdq_full_cnt;
+ __le32 fcoe_silent_drop_pkt_rq_full_cnt;
+ __le32 fcoe_silent_drop_pkt_crc_error_cnt;
+ __le32 fcoe_silent_drop_pkt_task_invalid_cnt;
+ __le32 fcoe_silent_drop_total_pkt_cnt;
+ __le32 rsrv;
+};
+
+enum fcoe_sgl_mode {
+ FCOE_SLOW_SGL,
+ FCOE_SINGLE_FAST_SGE,
+ FCOE_2_FAST_SGE,
+ FCOE_3_FAST_SGE,
+ FCOE_4_FAST_SGE,
+ FCOE_MUL_FAST_SGES,
+ MAX_FCOE_SGL_MODE
+};
+
+struct fcoe_stat_ramrod_data {
+ struct regpair stat_params_addr;
+};
+
+struct protection_info_ctx {
+ __le16 flags;
+#define PROTECTION_INFO_CTX_HOST_INTERFACE_MASK 0x3
+#define PROTECTION_INFO_CTX_HOST_INTERFACE_SHIFT 0
+#define PROTECTION_INFO_CTX_DIF_TO_PEER_MASK 0x1
+#define PROTECTION_INFO_CTX_DIF_TO_PEER_SHIFT 2
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_APP_TAG_MASK 0x1
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_APP_TAG_SHIFT 3
+#define PROTECTION_INFO_CTX_INTERVAL_SIZE_LOG_MASK 0xF
+#define PROTECTION_INFO_CTX_INTERVAL_SIZE_LOG_SHIFT 4
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_REF_TAG_MASK 0x1
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_REF_TAG_SHIFT 8
+#define PROTECTION_INFO_CTX_RESERVED0_MASK 0x7F
+#define PROTECTION_INFO_CTX_RESERVED0_SHIFT 9
+ u8 dix_block_size;
+ u8 dst_size;
+};
+
+union protection_info_union_ctx {
+ struct protection_info_ctx info;
+ __le32 value;
+};
+
+struct fcp_rsp_payload_padded {
+ struct fcoe_fcp_rsp_payload rsp_payload;
+ __le32 reserved[2];
+};
+
+struct fcp_xfer_payload_padded {
+ struct fcoe_fcp_xfer_payload xfer_payload;
+ __le32 reserved[5];
+};
+
+struct fcoe_tx_data_params {
+ __le32 data_offset;
+ __le32 offset_in_io;
+ u8 flags;
+#define FCOE_TX_DATA_PARAMS_OFFSET_IN_IO_VALID_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_OFFSET_IN_IO_VALID_SHIFT 0
+#define FCOE_TX_DATA_PARAMS_DROP_DATA_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_DROP_DATA_SHIFT 1
+#define FCOE_TX_DATA_PARAMS_AFTER_SEQ_REC_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_AFTER_SEQ_REC_SHIFT 2
+#define FCOE_TX_DATA_PARAMS_RESERVED0_MASK 0x1F
+#define FCOE_TX_DATA_PARAMS_RESERVED0_SHIFT 3
+ u8 dif_residual;
+ __le16 seq_cnt;
+ __le16 single_sge_saved_offset;
+ __le16 next_dif_offset;
+ __le16 seq_id;
+ __le16 reserved3;
+};
+
+struct fcoe_tx_mid_path_params {
+ __le32 parameter;
+ u8 r_ctl;
+ u8 type;
+ u8 cs_ctl;
+ u8 df_ctl;
+ __le16 rx_id;
+ __le16 ox_id;
+};
+
+struct fcoe_tx_params {
+ struct fcoe_tx_data_params data;
+ struct fcoe_tx_mid_path_params mid_path;
+};
+
+union fcoe_tx_info_union_ctx {
+ struct fcoe_fcp_cmd_payload fcp_cmd_payload;
+ struct fcp_rsp_payload_padded fcp_rsp_payload;
+ struct fcp_xfer_payload_padded fcp_xfer_payload;
+ struct fcoe_tx_params tx_params;
+};
+
+struct ystorm_fcoe_task_st_ctx {
+ u8 task_type;
+ u8 sgl_mode;
+#define YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE_MASK 0x7
+#define YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE_SHIFT 0
+#define YSTORM_FCOE_TASK_ST_CTX_RSRV_MASK 0x1F
+#define YSTORM_FCOE_TASK_ST_CTX_RSRV_SHIFT 3
+ u8 cached_dix_sge;
+ u8 expect_first_xfer;
+ __le32 num_pbf_zero_write;
+ union protection_info_union_ctx protection_info_union;
+ __le32 data_2_trns_rem;
+ union fcoe_tx_info_union_ctx tx_info_union;
+ union fcoe_dix_desc_ctx dix_desc;
+ union fcoe_data_desc_ctx data_desc;
+ __le16 ox_id;
+ __le16 rx_id;
+ __le32 task_rety_identifier;
+ __le32 reserved1[2];
+};
+
+struct ystorm_fcoe_task_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ __le16 word0;
+ u8 flags0;
+#define YSTORM_FCOE_TASK_AG_CTX_NIBBLE0_MASK 0xF
+#define YSTORM_FCOE_TASK_AG_CTX_NIBBLE0_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_BIT0_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT0_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define YSTORM_FCOE_TASK_AG_CTX_BIT2_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT2_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_BIT3_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT3_SHIFT 7
+ u8 flags1;
+#define YSTORM_FCOE_TASK_AG_CTX_CF0_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF0_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 2
+#define YSTORM_FCOE_TASK_AG_CTX_CF2SPECIAL_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_CF0EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_CF0EN_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 7
+ u8 flags2;
+#define YSTORM_FCOE_TASK_AG_CTX_BIT4_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT4_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 2
+#define YSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 3
+#define YSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 5
+#define YSTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 7
+ u8 byte2;
+ __le32 reg0;
+ u8 byte3;
+ u8 byte4;
+ __le16 rx_id;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le16 word5;
+ __le32 reg1;
+ __le32 reg2;
+};
+
+struct tstorm_fcoe_task_ag_ctx {
+ u8 reserved;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_WAIT_ABTS_RSP_F_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_WAIT_ABTS_RSP_F_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_VALID_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_VALID_SHIFT 7
+ u8 flags1;
+#define TSTORM_FCOE_TASK_AG_CTX_FALSE_RR_TOV_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_FALSE_RR_TOV_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_BIT5_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_BIT5_SHIFT 1
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 6
+ u8 flags2;
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_SHIFT 6
+ u8 flags3;
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_EN_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_EN_SHIFT 3
+#define TSTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_EN_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_EN_SHIFT 7
+ u8 flags4;
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_EN_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_EN_SHIFT 1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 3
+#define TSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 7
+ u8 cleanup_state;
+ __le16 last_sent_tid;
+ __le32 rec_rr_tov_exp_timeout;
+ u8 byte3;
+ u8 byte4;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le32 data_offset_end_of_seq;
+ __le32 data_offset_next;
+};
+
+struct fcoe_tstorm_fcoe_task_st_ctx_read_write {
+ union fcoe_cleanup_addr_exp_ro_union cleanup_addr_exp_ro_union;
+ __le16 flags;
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE_MASK 0x7
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE_SHIFT 0
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME_SHIFT 3
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_ACTIVE_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_ACTIVE_SHIFT 4
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_TIMEOUT_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_TIMEOUT_SHIFT 5
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SINGLE_PKT_IN_EX_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SINGLE_PKT_IN_EX_SHIFT 6
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_OOO_RX_SEQ_STAT_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_OOO_RX_SEQ_STAT_SHIFT 7
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_CQ_ADD_ADV_MASK 0x3
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_CQ_ADD_ADV_SHIFT 8
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RSRV1_MASK 0x3F
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RSRV1_SHIFT 10
+ __le16 seq_cnt;
+ u8 seq_id;
+ u8 ooo_rx_seq_id;
+ __le16 rx_id;
+ struct fcoe_abts_pkt abts_data;
+ __le32 e_d_tov_exp_timeout_val;
+ __le16 ooo_rx_seq_cnt;
+ __le16 reserved1;
+};
+
+struct fcoe_tstorm_fcoe_task_st_ctx_read_only {
+ u8 task_type;
+ u8 dev_type;
+ u8 conf_supported;
+ u8 glbl_q_num;
+ __le32 cid;
+ __le32 fcp_cmd_trns_size;
+ __le32 rsrv;
+};
+
+struct tstorm_fcoe_task_st_ctx {
+ struct fcoe_tstorm_fcoe_task_st_ctx_read_write read_write;
+ struct fcoe_tstorm_fcoe_task_st_ctx_read_only read_only;
+};
+
+struct mstorm_fcoe_task_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define MSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define MSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_CQE_PLACED_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CQE_PLACED_SHIFT 5
+#define MSTORM_FCOE_TASK_AG_CTX_BIT2_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_BIT2_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_BIT3_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_BIT3_SHIFT 7
+ u8 flags1;
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 2
+#define MSTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 7
+ u8 flags2;
+#define MSTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 2
+#define MSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 3
+#define MSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 5
+#define MSTORM_FCOE_TASK_AG_CTX_XFER_PLACEMENT_EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_XFER_PLACEMENT_EN_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 7
+ u8 cleanup_state;
+ __le32 received_bytes;
+ u8 byte3;
+ u8 glbl_q_num;
+ __le16 word1;
+ __le16 tid_to_xfer;
+ __le16 word3;
+ __le16 word4;
+ __le16 word5;
+ __le32 expected_bytes;
+ __le32 reg2;
+};
+
+struct mstorm_fcoe_task_st_ctx {
+ struct fcoe_mstorm_fcoe_task_st_ctx_non_fp non_fp;
+ struct fcoe_mstorm_fcoe_task_st_ctx_fp fp;
+};
+
+struct ustorm_fcoe_task_ag_ctx {
+ u8 reserved;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define USTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define USTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define USTORM_FCOE_TASK_AG_CTX_CF0_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF0_SHIFT 6
+ u8 flags1;
+#define USTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_CF3_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF3_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
+ u8 flags2;
+#define USTORM_FCOE_TASK_AG_CTX_CF0EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF0EN_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 1
+#define USTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_CF3EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF3EN_SHIFT 3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 5
+#define USTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 6
+#define USTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 7
+ u8 flags3;
+#define USTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 1
+#define USTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
+ __le32 dif_err_intervals;
+ __le32 dif_error_1st_interval;
+ __le32 global_cq_num;
+ __le32 reg3;
+ __le32 reg4;
+ __le32 reg5;
+};
+
+struct fcoe_task_context {
+ struct ystorm_fcoe_task_st_ctx ystorm_st_context;
+ struct tdif_task_context tdif_context;
+ struct ystorm_fcoe_task_ag_ctx ystorm_ag_context;
+ struct tstorm_fcoe_task_ag_ctx tstorm_ag_context;
+ struct timers_context timer_context;
+ struct tstorm_fcoe_task_st_ctx tstorm_st_context;
+ struct regpair tstorm_st_padding[2];
+ struct mstorm_fcoe_task_ag_ctx mstorm_ag_context;
+ struct mstorm_fcoe_task_st_ctx mstorm_st_context;
+ struct ustorm_fcoe_task_ag_ctx ustorm_ag_context;
+ struct rdif_task_context rdif_context;
+};
+
+struct fcoe_tx_stat {
+ struct regpair fcoe_tx_byte_cnt;
+ struct regpair fcoe_tx_data_pkt_cnt;
+ struct regpair fcoe_tx_xfer_pkt_cnt;
+ struct regpair fcoe_tx_other_pkt_cnt;
+};
+
+struct fcoe_wqe {
+ __le16 task_id;
+ __le16 flags;
+#define FCOE_WQE_REQ_TYPE_MASK 0xF
+#define FCOE_WQE_REQ_TYPE_SHIFT 0
+#define FCOE_WQE_SGL_MODE_MASK 0x7
+#define FCOE_WQE_SGL_MODE_SHIFT 4
+#define FCOE_WQE_CONTINUATION_MASK 0x1
+#define FCOE_WQE_CONTINUATION_SHIFT 7
+#define FCOE_WQE_INVALIDATE_PTU_MASK 0x1
+#define FCOE_WQE_INVALIDATE_PTU_SHIFT 8
+#define FCOE_WQE_SUPER_IO_MASK 0x1
+#define FCOE_WQE_SUPER_IO_SHIFT 9
+#define FCOE_WQE_SEND_AUTO_RSP_MASK 0x1
+#define FCOE_WQE_SEND_AUTO_RSP_SHIFT 10
+#define FCOE_WQE_RESERVED0_MASK 0x1F
+#define FCOE_WQE_RESERVED0_SHIFT 11
+ union fcoe_additional_info_union additional_info_union;
+};
+
+struct xfrqe_prot_flags {
+ u8 flags;
+#define XFRQE_PROT_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF
+#define XFRQE_PROT_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
+#define XFRQE_PROT_FLAGS_DIF_TO_PEER_MASK 0x1
+#define XFRQE_PROT_FLAGS_DIF_TO_PEER_SHIFT 4
+#define XFRQE_PROT_FLAGS_HOST_INTERFACE_MASK 0x3
+#define XFRQE_PROT_FLAGS_HOST_INTERFACE_SHIFT 5
+#define XFRQE_PROT_FLAGS_RESERVED_MASK 0x1
+#define XFRQE_PROT_FLAGS_RESERVED_SHIFT 7
+};
+
+struct fcoe_db_data {
+ u8 params;
+#define FCOE_DB_DATA_DEST_MASK 0x3
+#define FCOE_DB_DATA_DEST_SHIFT 0
+#define FCOE_DB_DATA_AGG_CMD_MASK 0x3
+#define FCOE_DB_DATA_AGG_CMD_SHIFT 2
+#define FCOE_DB_DATA_BYPASS_EN_MASK 0x1
+#define FCOE_DB_DATA_BYPASS_EN_SHIFT 4
+#define FCOE_DB_DATA_RESERVED_MASK 0x1
+#define FCOE_DB_DATA_RESERVED_SHIFT 5
+#define FCOE_DB_DATA_AGG_VAL_SEL_MASK 0x3
+#define FCOE_DB_DATA_AGG_VAL_SEL_SHIFT 6
+ u8 agg_flags;
+ __le16 sq_prod;
+};
+#endif /* __FCOE_COMMON__ */
diff --git a/include/linux/qed/qed_fcoe_if.h b/include/linux/qed/qed_fcoe_if.h
new file mode 100644
index 0000000..bd6bcb8
--- /dev/null
+++ b/include/linux/qed/qed_fcoe_if.h
@@ -0,0 +1,145 @@
+#ifndef _QED_FCOE_IF_H
+#define _QED_FCOE_IF_H
+#include <linux/types.h>
+#include <linux/qed/qed_if.h>
+struct qed_fcoe_stats {
+ u64 fcoe_rx_byte_cnt;
+ u64 fcoe_rx_data_pkt_cnt;
+ u64 fcoe_rx_xfer_pkt_cnt;
+ u64 fcoe_rx_other_pkt_cnt;
+ u32 fcoe_silent_drop_pkt_cmdq_full_cnt;
+ u32 fcoe_silent_drop_pkt_rq_full_cnt;
+ u32 fcoe_silent_drop_pkt_crc_error_cnt;
+ u32 fcoe_silent_drop_pkt_task_invalid_cnt;
+ u32 fcoe_silent_drop_total_pkt_cnt;
+
+ u64 fcoe_tx_byte_cnt;
+ u64 fcoe_tx_data_pkt_cnt;
+ u64 fcoe_tx_xfer_pkt_cnt;
+ u64 fcoe_tx_other_pkt_cnt;
+};
+
+struct qed_dev_fcoe_info {
+ struct qed_dev_info common;
+
+ void __iomem *primary_dbq_rq_addr;
+ void __iomem *secondary_bdq_rq_addr;
+};
+
+struct qed_fcoe_params_offload {
+ dma_addr_t sq_pbl_addr;
+ dma_addr_t sq_curr_page_addr;
+ dma_addr_t sq_next_page_addr;
+
+ u8 src_mac[ETH_ALEN];
+ u8 dst_mac[ETH_ALEN];
+
+ u16 tx_max_fc_pay_len;
+ u16 e_d_tov_timer_val;
+ u16 rec_tov_timer_val;
+ u16 rx_max_fc_pay_len;
+ u16 vlan_tag;
+
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+ u8 def_q_idx;
+};
+
+#define MAX_TID_BLOCKS_FCOE (512)
+struct qed_fcoe_tid {
+ u32 size; /* In bytes per task */
+ u32 num_tids_per_block;
+ u8 *blocks[MAX_TID_BLOCKS_FCOE];
+};
+
+struct qed_fcoe_cb_ops {
+ struct qed_common_cb_ops common;
+ u32 (*get_login_failures)(void *cookie);
+};
+
+void qed_fcoe_set_pf_params(struct qed_dev *cdev,
+ struct qed_fcoe_pf_params *params);
+
+/**
+ * struct qed_fcoe_ops - qed FCoE operations.
+ * @common: common operations pointer
+ * @fill_dev_info: fills FCoE specific information
+ * @param cdev
+ * @param info
+ * @return 0 on sucesss, otherwise error value.
+ * @register_ops: register FCoE operations
+ * @param cdev
+ * @param ops - specified using qed_iscsi_cb_ops
+ * @param cookie - driver private
+ * @ll2: light L2 operations pointer
+ * @start: fcoe in FW
+ * @param cdev
+ * @param tasks - qed will fill information about tasks
+ * return 0 on success, otherwise error value.
+ * @stop: stops fcoe in FW
+ * @param cdev
+ * return 0 on success, otherwise error value.
+ * @acquire_conn: acquire a new fcoe connection
+ * @param cdev
+ * @param handle - qed will fill handle that should be
+ * used henceforth as identifier of the
+ * connection.
+ * @param p_doorbell - qed will fill the address of the
+ * doorbell.
+ * return 0 on sucesss, otherwise error value.
+ * @release_conn: release a previously acquired fcoe connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * return 0 on success, otherwise error value.
+ * @offload_conn: configures an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * return 0 on success, otherwise error value.
+ * @destroy_conn: stops an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param terminate_params
+ * return 0 on success, otherwise error value.
+ * @get_stats: gets FCoE related statistics
+ * @param cdev
+ * @param stats - pointer to struck that would be filled
+ * we stats
+ * return 0 on success, error otherwise.
+ */
+struct qed_fcoe_ops {
+ const struct qed_common_ops *common;
+
+ int (*fill_dev_info)(struct qed_dev *cdev,
+ struct qed_dev_fcoe_info *info);
+
+ void (*register_ops)(struct qed_dev *cdev,
+ struct qed_fcoe_cb_ops *ops, void *cookie);
+
+ const struct qed_ll2_ops *ll2;
+
+ int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);
+
+ int (*stop)(struct qed_dev *cdev);
+
+ int (*acquire_conn)(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell);
+
+ int (*release_conn)(struct qed_dev *cdev, u32 handle);
+
+ int (*offload_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_fcoe_params_offload *conn_info);
+ int (*destroy_conn)(struct qed_dev *cdev,
+ u32 handle, dma_addr_t terminate_params);
+
+ int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
+};
+
+const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
+void qed_put_fcoe_ops(void);
+#endif
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index d1576a2..fde56c4 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -59,7 +59,6 @@ enum dcbx_protocol_type {

#define QED_ROCE_PROTOCOL_INDEX (3)

-#ifdef CONFIG_DCB
#define QED_LLDP_CHASSIS_ID_STAT_LEN 4
#define QED_LLDP_PORT_ID_STAT_LEN 4
#define QED_DCBX_MAX_APP_PROTOCOL 32
@@ -155,7 +154,6 @@ struct qed_dcbx_get {
struct qed_dcbx_remote_params remote;
struct qed_dcbx_admin_params local;
};
-#endif

enum qed_led_mode {
QED_LED_MODE_OFF,
@@ -182,6 +180,38 @@ struct qed_eth_pf_params {
u16 num_cons;
};

+struct qed_fcoe_pf_params {
+ /* The following parameters are used during protocol-init */
+ u64 glbl_q_params_addr;
+ u64 bdq_pbl_base_addr[2];
+
+ /* The following parameters are used during HW-init
+ * and these parameters need to be passed as arguments
+ * to update_pf_params routine invoked before slowpath start
+ */
+ u16 num_cons;
+ u16 num_tasks;
+
+ /* The following parameters are used during protocol-init */
+ u16 sq_num_pbl_pages;
+
+ u16 cq_num_entries;
+ u16 cmdq_num_entries;
+ u16 rq_buffer_log_size;
+ u16 mtu;
+ u16 dummy_icid;
+ u16 bdq_xoff_threshold[2];
+ u16 bdq_xon_threshold[2];
+ u16 rq_buffer_size;
+ u8 num_cqs; /* num of global CQs */
+ u8 log_page_size;
+ u8 gl_rq_pi;
+ u8 gl_cmd_pi;
+ u8 debug_mode;
+ u8 is_target;
+ u8 bdq_pbl_num_entries[2];
+};
+
/* Most of the the parameters below are described in the FW iSCSI / TCP HSI */
struct qed_iscsi_pf_params {
u64 glbl_q_params_addr;
@@ -245,6 +275,7 @@ struct qed_rdma_pf_params {

struct qed_pf_params {
struct qed_eth_pf_params eth_pf_params;
+ struct qed_fcoe_pf_params fcoe_pf_params;
struct qed_iscsi_pf_params iscsi_pf_params;
struct qed_rdma_pf_params rdma_pf_params;
};
@@ -305,6 +336,7 @@ enum qed_sb_type {
enum qed_protocol {
QED_PROTOCOL_ETH,
QED_PROTOCOL_ISCSI,
+ QED_PROTOCOL_FCOE,
};

enum qed_link_mode_bits {
@@ -391,6 +423,7 @@ struct qed_int_info {
struct qed_common_cb_ops {
void (*link_update)(void *dev,
struct qed_link_output *link);
+ void (*dcbx_aen)(void *dev, struct qed_dcbx_get *get, u32 mib_type);
};

struct qed_selftest_ops {
@@ -494,6 +527,10 @@ struct qed_common_ops {

void (*simd_handler_clean)(struct qed_dev *cdev,
int index);
+ int (*dbg_grc)(struct qed_dev *cdev,
+ void *buffer, u32 *num_dumped_bytes);
+
+ int (*dbg_grc_size)(struct qed_dev *cdev);

int (*dbg_all_data) (struct qed_dev *cdev, void *buffer);
--
1.8.5.6
Dupuis, Chad
2017-02-15 14:28:23 UTC
Permalink
From: "Dupuis, Chad" <***@cavium.com>

The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module for 41000
Series Converged Network Adapters by QLogic. This patch consists of following
changes:

- MAINTAINERS Makefile and Kconfig changes for qedf
- PCI driver registration
- libfc/fcoe host level initialization
- SCSI host template initialization and callbacks
- Debugfs and log level infrastructure
- Link handling
- Firmware interface structures
- QED core module initialization
- Light L2 interface callbacks
- I/O request initialization
- Firmware I/O completion handling
- Firmware ELS request/response handling
- FIP request/response handled by the driver itself

Signed-off-by: Nilesh Javali <***@cavium.com>
Signed-off-by: Manish Rangankar <***@cavium.com>
Signed-off-by: Saurav Kashyap <***@cavium.com>
Signed-off-by: Arun Easi <***@cavium.com>
Signed-off-by: Chad Dupuis <***@cavium.com>
---
MAINTAINERS | 6 +
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/qedf/Kconfig | 11 +
drivers/scsi/qedf/Makefile | 5 +
drivers/scsi/qedf/qedf.h | 545 +++++++
drivers/scsi/qedf/qedf_attr.c | 165 ++
drivers/scsi/qedf/qedf_dbg.c | 195 +++
drivers/scsi/qedf/qedf_dbg.h | 154 ++
drivers/scsi/qedf/qedf_debugfs.c | 460 ++++++
drivers/scsi/qedf/qedf_els.c | 949 +++++++++++
drivers/scsi/qedf/qedf_fip.c | 269 +++
drivers/scsi/qedf/qedf_hsi.h | 422 +++++
drivers/scsi/qedf/qedf_io.c | 2282 ++++++++++++++++++++++++++
drivers/scsi/qedf/qedf_main.c | 3336 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/qedf/qedf_version.h | 15 +
16 files changed, 8816 insertions(+)
create mode 100644 drivers/scsi/qedf/Kconfig
create mode 100644 drivers/scsi/qedf/Makefile
create mode 100644 drivers/scsi/qedf/qedf.h
create mode 100644 drivers/scsi/qedf/qedf_attr.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.h
create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
create mode 100644 drivers/scsi/qedf/qedf_els.c
create mode 100644 drivers/scsi/qedf/qedf_fip.c
create mode 100644 drivers/scsi/qedf/qedf_hsi.h
create mode 100644 drivers/scsi/qedf/qedf_io.c
create mode 100644 drivers/scsi/qedf/qedf_main.c
create mode 100644 drivers/scsi/qedf/qedf_version.h

diff --git a/MAINTAINERS b/MAINTAINERS
index d8f71f2..4b7f5c5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10202,6 +10202,12 @@ L: linux-***@vger.kernel.org
S: Supported
F: drivers/scsi/qedi/

+QLOGIC QL41xxx FCOE DRIVER
+M: QLogic-Storage-***@cavium.com
+L: linux-***@vger.kernel.org
+S: Supported
+F: drivers/scsi/qedf/
+
QNX4 FILESYSTEM
M: Anders Larsen <***@alarsen.net>
W: http://www.alarsen.net/linux/qnx4fs/
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index a4f6b0d..e9fce78b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1234,6 +1234,7 @@ config SCSI_QLOGICPTI
source "drivers/scsi/qla2xxx/Kconfig"
source "drivers/scsi/qla4xxx/Kconfig"
source "drivers/scsi/qedi/Kconfig"
+source "drivers/scsi/qedf/Kconfig"

config SCSI_LPFC
tristate "Emulex LightPulse Fibre Channel Support"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 736b774..fc28555 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_FCOE) += fcoe/
obj-$(CONFIG_FCOE_FNIC) += fnic/
obj-$(CONFIG_SCSI_SNIC) += snic/
obj-$(CONFIG_SCSI_BNX2X_FCOE) += libfc/ fcoe/ bnx2fc/
+obj-$(CONFIG_QEDF) += qedf/
obj-$(CONFIG_ISCSI_TCP) += libiscsi.o libiscsi_tcp.o iscsi_tcp.o
obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o
obj-$(CONFIG_ISCSI_BOOT_SYSFS) += iscsi_boot_sysfs.o
diff --git a/drivers/scsi/qedf/Kconfig b/drivers/scsi/qedf/Kconfig
new file mode 100644
index 0000000..943f5ee
--- /dev/null
+++ b/drivers/scsi/qedf/Kconfig
@@ -0,0 +1,11 @@
+config QEDF
+ tristate "QLogic QEDF 25/40/100Gb FCoE Initiator Driver Support"
+ depends on PCI && SCSI
+ depends on QED
+ depends on LIBFC
+ depends on LIBFCOE
+ select QED_LL2
+ select QED_FCOE
+ ---help---
+ This driver supports FCoE offload for the QLogic FastLinQ
+ 41000 Series Converged Network Adapters.
diff --git a/drivers/scsi/qedf/Makefile b/drivers/scsi/qedf/Makefile
new file mode 100644
index 0000000..64e9f50
--- /dev/null
+++ b/drivers/scsi/qedf/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_QEDF) := qedf.o
+qedf-y = qedf_dbg.o qedf_main.o qedf_io.o qedf_fip.o \
+ qedf_attr.o qedf_els.o
+
+qedf-$(CONFIG_DEBUG_FS) += qedf_debugfs.o
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
new file mode 100644
index 0000000..96346a1
--- /dev/null
+++ b/drivers/scsi/qedf/qedf.h
@@ -0,0 +1,545 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef _QEDFC_H_
+#define _QEDFC_H_
+
+#include <scsi/libfcoe.h>
+#include <scsi/libfc.h>
+#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fc2.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/fc_encode.h>
+#include <linux/version.h>
+
+
+/* qedf_hsi.h needs to before included any qed includes */
+#include "qedf_hsi.h"
+
+#include <linux/qed/qed_if.h>
+#include <linux/qed/qed_fcoe_if.h>
+#include <linux/qed/qed_ll2_if.h>
+#include "qedf_version.h"
+#include "qedf_dbg.h"
+
+/* Helpers to extract upper and lower 32-bits of pointer */
+#define U64_HI(val) ((u32)(((u64)(val)) >> 32))
+#define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff))
+
+#define QEDF_DESCR "QLogic FCoE Offload Driver"
+#define QEDF_MODULE_NAME "qedf"
+
+#define QEDF_MIN_XID 0
+#define QEDF_MAX_SCSI_XID (NUM_TASKS_PER_CONNECTION - 1)
+#define QEDF_MAX_ELS_XID 4095
+#define QEDF_FLOGI_RETRY_CNT 3
+#define QEDF_RPORT_RETRY_CNT 255
+#define QEDF_MAX_SESSIONS 1024
+#define QEDF_MAX_PAYLOAD 2048
+#define QEDF_MAX_BDS_PER_CMD 256
+#define QEDF_MAX_BD_LEN 0xffff
+#define QEDF_BD_SPLIT_SZ 0x1000
+#define QEDF_PAGE_SIZE 4096
+#define QED_HW_DMA_BOUNDARY 0xfff
+#define QEDF_MAX_SGLEN_FOR_CACHESGL ((1U << 16) - 1)
+#define QEDF_MFS (QEDF_MAX_PAYLOAD + \
+ sizeof(struct fc_frame_header))
+#define QEDF_MAX_NPIV 64
+#define QEDF_TM_TIMEOUT 10
+#define QEDF_ABORT_TIMEOUT 10
+#define QEDF_CLEANUP_TIMEOUT 10
+#define QEDF_MAX_CDB_LEN 16
+
+#define UPSTREAM_REMOVE 1
+#define UPSTREAM_KEEP 1
+
+struct qedf_mp_req {
+ uint8_t tm_flags;
+
+ uint32_t req_len;
+ void *req_buf;
+ dma_addr_t req_buf_dma;
+ struct fcoe_sge *mp_req_bd;
+ dma_addr_t mp_req_bd_dma;
+ struct fc_frame_header req_fc_hdr;
+
+ uint32_t resp_len;
+ void *resp_buf;
+ dma_addr_t resp_buf_dma;
+ struct fcoe_sge *mp_resp_bd;
+ dma_addr_t mp_resp_bd_dma;
+ struct fc_frame_header resp_fc_hdr;
+};
+
+struct qedf_els_cb_arg {
+ struct qedf_ioreq *aborted_io_req;
+ struct qedf_ioreq *io_req;
+ u8 op; /* Used to keep track of ELS op */
+ uint16_t l2_oxid;
+ u32 offset; /* Used for sequence cleanup */
+ u8 r_ctl; /* Used for sequence cleanup */
+};
+
+enum qedf_ioreq_event {
+ QEDF_IOREQ_EV_ABORT_SUCCESS,
+ QEDF_IOREQ_EV_ABORT_FAILED,
+ QEDF_IOREQ_EV_SEND_RRQ,
+ QEDF_IOREQ_EV_ELS_TMO,
+ QEDF_IOREQ_EV_ELS_ERR_DETECT,
+ QEDF_IOREQ_EV_ELS_FLUSH,
+ QEDF_IOREQ_EV_CLEANUP_SUCCESS,
+ QEDF_IOREQ_EV_CLEANUP_FAILED,
+};
+
+#define FC_GOOD 0
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3)
+#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0)
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1)
+struct qedf_ioreq {
+ struct list_head link;
+ uint16_t xid;
+ struct scsi_cmnd *sc_cmd;
+ bool use_slowpath; /* Use slow SGL for this I/O */
+#define QEDF_SCSI_CMD 1
+#define QEDF_TASK_MGMT_CMD 2
+#define QEDF_ABTS 3
+#define QEDF_ELS 4
+#define QEDF_CLEANUP 5
+#define QEDF_SEQ_CLEANUP 6
+ u8 cmd_type;
+#define QEDF_CMD_OUTSTANDING 0x0
+#define QEDF_CMD_IN_ABORT 0x1
+#define QEDF_CMD_IN_CLEANUP 0x2
+#define QEDF_CMD_SRR_SENT 0x3
+ u8 io_req_flags;
+ struct qedf_rport *fcport;
+ unsigned long flags;
+ enum qedf_ioreq_event event;
+ size_t data_xfer_len;
+ struct kref refcount;
+ struct qedf_cmd_mgr *cmd_mgr;
+ struct io_bdt *bd_tbl;
+ struct delayed_work timeout_work;
+ struct completion tm_done;
+ struct completion abts_done;
+ struct fcoe_task_context *task;
+ int idx;
+/*
+ * Need to allocate enough room for both sense data and FCP response data
+ * which has a max length of 8 bytes according to spec.
+ */
+#define QEDF_SCSI_SENSE_BUFFERSIZE (SCSI_SENSE_BUFFERSIZE + 8)
+ uint8_t *sense_buffer;
+ dma_addr_t sense_buffer_dma;
+ u32 fcp_resid;
+ u32 fcp_rsp_len;
+ u32 fcp_sns_len;
+ u8 cdb_status;
+ u8 fcp_status;
+ u8 fcp_rsp_code;
+ u8 scsi_comp_flags;
+#define QEDF_MAX_REUSE 0xfff
+ u16 reuse_count;
+ struct qedf_mp_req mp_req;
+ void (*cb_func)(struct qedf_els_cb_arg *cb_arg);
+ struct qedf_els_cb_arg *cb_arg;
+ int fp_idx;
+ unsigned int cpu;
+ unsigned int int_cpu;
+#define QEDF_IOREQ_SLOW_SGE 0
+#define QEDF_IOREQ_SINGLE_SGE 1
+#define QEDF_IOREQ_FAST_SGE 2
+ u8 sge_type;
+ struct delayed_work rrq_work;
+
+ /* Used for sequence level recovery; i.e. REC/SRR */
+ uint32_t rx_buf_off;
+ uint32_t tx_buf_off;
+ uint32_t rx_id;
+ uint32_t task_retry_identifier;
+
+ /*
+ * Used to tell if we need to return a SCSI command
+ * during some form of error processing.
+ */
+ bool return_scsi_cmd_on_abts;
+};
+
+extern struct workqueue_struct *qedf_io_wq;
+
+struct qedf_rport {
+ spinlock_t rport_lock;
+#define QEDF_RPORT_SESSION_READY 1
+#define QEDF_RPORT_UPLOADING_CONNECTION 2
+ unsigned long flags;
+ unsigned long retry_delay_timestamp;
+ struct fc_rport *rport;
+ struct fc_rport_priv *rdata;
+ struct qedf_ctx *qedf;
+ u32 handle; /* Handle from qed */
+ u32 fw_cid; /* fw_cid from qed */
+ void __iomem *p_doorbell;
+ /* Send queue management */
+ atomic_t free_sqes;
+ atomic_t num_active_ios;
+ struct fcoe_wqe *sq;
+ dma_addr_t sq_dma;
+ u16 sq_prod_idx;
+ u16 fw_sq_prod_idx;
+ u16 sq_con_idx;
+ u32 sq_mem_size;
+ void *sq_pbl;
+ dma_addr_t sq_pbl_dma;
+ u32 sq_pbl_size;
+ u32 sid;
+#define QEDF_RPORT_TYPE_DISK 1
+#define QEDF_RPORT_TYPE_TAPE 2
+ uint dev_type; /* Disk or tape */
+ struct list_head peers;
+};
+
+/* Used to contain LL2 skb's in ll2_skb_list */
+struct qedf_skb_work {
+ struct work_struct work;
+ struct sk_buff *skb;
+ struct qedf_ctx *qedf;
+};
+
+struct qedf_fastpath {
+#define QEDF_SB_ID_NULL 0xffff
+ u16 sb_id;
+ struct qed_sb_info *sb_info;
+ struct qedf_ctx *qedf;
+ /* Keep track of number of completions on this fastpath */
+ unsigned long completions;
+ uint32_t cq_num_entries;
+};
+
+/* Used to pass fastpath information needed to process CQEs */
+struct qedf_io_work {
+ struct work_struct work;
+ struct fcoe_cqe cqe;
+ struct qedf_ctx *qedf;
+ struct fc_frame *fp;
+};
+
+struct qedf_glbl_q_params {
+ u64 hw_p_cq; /* Completion queue PBL */
+ u64 hw_p_rq; /* Request queue PBL */
+ u64 hw_p_cmdq; /* Command queue PBL */
+};
+
+struct global_queue {
+ struct fcoe_cqe *cq;
+ dma_addr_t cq_dma;
+ u32 cq_mem_size;
+ u32 cq_cons_idx; /* Completion queue consumer index */
+ u32 cq_prod_idx;
+
+ void *cq_pbl;
+ dma_addr_t cq_pbl_dma;
+ u32 cq_pbl_size;
+};
+
+/* I/O tracing entry */
+#define QEDF_IO_TRACE_SIZE 2048
+struct qedf_io_log {
+#define QEDF_IO_TRACE_REQ 0
+#define QEDF_IO_TRACE_RSP 1
+ uint8_t direction;
+ uint16_t task_id;
+ uint32_t port_id; /* Remote port fabric ID */
+ int lun;
+ char op; /* SCSI CDB */
+ uint8_t lba[4];
+ unsigned int bufflen; /* SCSI buffer length */
+ unsigned int sg_count; /* Number of SG elements */
+ int result; /* Result passed back to mid-layer */
+ unsigned long jiffies; /* Time stamp when I/O logged */
+ int refcount; /* Reference count for task id */
+ unsigned int req_cpu; /* CPU that the task is queued on */
+ unsigned int int_cpu; /* Interrupt CPU that the task is received on */
+ unsigned int rsp_cpu; /* CPU that task is returned on */
+ u8 sge_type; /* Did we take the slow, single or fast SGE path */
+};
+
+/* Number of entries in BDQ */
+#define QEDF_BDQ_SIZE 256
+#define QEDF_BDQ_BUF_SIZE 2072
+
+/* DMA coherent buffers for BDQ */
+struct qedf_bdq_buf {
+ void *buf_addr;
+ dma_addr_t buf_dma;
+};
+
+/* Main adapter struct */
+struct qedf_ctx {
+ struct qedf_dbg_ctx dbg_ctx;
+ struct fcoe_ctlr ctlr;
+ struct fc_lport *lport;
+ u8 data_src_addr[ETH_ALEN];
+#define QEDF_LINK_DOWN 0
+#define QEDF_LINK_UP 1
+ atomic_t link_state;
+#define QEDF_DCBX_PENDING 0
+#define QEDF_DCBX_DONE 1
+ atomic_t dcbx;
+ uint16_t max_scsi_xid;
+ uint16_t max_els_xid;
+#define QEDF_NULL_VLAN_ID -1
+#define QEDF_FALLBACK_VLAN 1002
+#define QEDF_DEFAULT_PRIO 3
+ int vlan_id;
+ uint vlan_hw_insert:1;
+ struct qed_dev *cdev;
+ struct qed_dev_fcoe_info dev_info;
+ struct qed_int_info int_info;
+ uint16_t last_command;
+ spinlock_t hba_lock;
+ struct pci_dev *pdev;
+ u64 wwnn;
+ u64 wwpn;
+ u8 __aligned(16) mac[ETH_ALEN];
+ struct list_head fcports;
+ atomic_t num_offloads;
+ unsigned int curr_conn_id;
+ struct workqueue_struct *ll2_recv_wq;
+ struct workqueue_struct *link_update_wq;
+ struct delayed_work link_update;
+ struct delayed_work link_recovery;
+ struct completion flogi_compl;
+ struct completion fipvlan_compl;
+
+ /*
+ * Used to tell if we're in the window where we are waiting for
+ * the link to come back up before informting fcoe that the link is
+ * done.
+ */
+ atomic_t link_down_tmo_valid;
+#define QEDF_TIMER_INTERVAL (1 * HZ)
+ struct timer_list timer; /* One second book keeping timer */
+#define QEDF_DRAIN_ACTIVE 1
+#define QEDF_LL2_STARTED 2
+#define QEDF_UNLOADING 3
+#define QEDF_GRCDUMP_CAPTURE 4
+#define QEDF_IN_RECOVERY 5
+#define QEDF_DBG_STOP_IO 6
+ unsigned long flags; /* Miscellaneous state flags */
+ int fipvlan_retries;
+ u8 num_queues;
+ struct global_queue **global_queues;
+ /* Pointer to array of queue structures */
+ struct qedf_glbl_q_params *p_cpuq;
+ /* Physical address of array of queue structures */
+ dma_addr_t hw_p_cpuq;
+
+ struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE];
+ void *bdq_pbl;
+ dma_addr_t bdq_pbl_dma;
+ size_t bdq_pbl_mem_size;
+ void *bdq_pbl_list;
+ dma_addr_t bdq_pbl_list_dma;
+ u8 bdq_pbl_list_num_entries;
+ void __iomem *bdq_primary_prod;
+ void __iomem *bdq_secondary_prod;
+ uint16_t bdq_prod_idx;
+
+ /* Structure for holding all the fastpath for this qedf_ctx */
+ struct qedf_fastpath *fp_array;
+ struct qed_fcoe_tid tasks;
+ struct qedf_cmd_mgr *cmd_mgr;
+ /* Holds the PF parameters we pass to qed to start he FCoE function */
+ struct qed_pf_params pf_params;
+ /* Used to time middle path ELS and TM commands */
+ struct workqueue_struct *timer_work_queue;
+
+#define QEDF_IO_WORK_MIN 64
+ mempool_t *io_mempool;
+ struct workqueue_struct *dpc_wq;
+
+ u32 slow_sge_ios;
+ u32 fast_sge_ios;
+ u32 single_sge_ios;
+
+ uint8_t *grcdump;
+ uint32_t grcdump_size;
+
+ struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
+ spinlock_t io_trace_lock;
+ uint16_t io_trace_idx;
+
+ bool stop_io_on_error;
+
+ u32 flogi_cnt;
+ u32 flogi_failed;
+
+ /* Used for fc statistics */
+ u64 input_requests;
+ u64 output_requests;
+ u64 control_requests;
+ u64 packet_aborts;
+ u64 alloc_failures;
+};
+
+struct io_bdt {
+ struct qedf_ioreq *io_req;
+ struct fcoe_sge *bd_tbl;
+ dma_addr_t bd_tbl_dma;
+ u16 bd_valid;
+};
+
+struct qedf_cmd_mgr {
+ struct qedf_ctx *qedf;
+ u16 idx;
+ struct io_bdt **io_bdt_pool;
+#define FCOE_PARAMS_NUM_TASKS 4096
+ struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS];
+ spinlock_t lock;
+ atomic_t free_list_cnt;
+};
+
+/* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info
+ * Usage:
+ *
+ * void *ptr;
+ * ptr = qedf_get_task_mem(&qedf->tasks, 128);
+ */
+static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid)
+{
+ return (void *)(info->blocks[tid / info->num_tids_per_block] +
+ (tid % info->num_tids_per_block) * info->size);
+}
+
+static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
+{
+ set_bit(QEDF_DBG_STOP_IO, &qedf->flags);
+}
+
+/*
+ * Externs
+ */
+#define QEDF_DEFAULT_LOG_MASK 0x3CFB6
+extern const struct qed_fcoe_ops *qed_ops;
+extern uint qedf_dump_frames;
+extern uint qedf_io_tracing;
+extern uint qedf_stop_io_on_error;
+extern uint qedf_link_down_tmo;
+#define QEDF_RETRY_DELAY_MAX 20 /* 2 seconds */
+extern bool qedf_retry_delay;
+extern uint qedf_debug;
+
+extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf);
+extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr);
+extern int qedf_queuecommand(struct Scsi_Host *host,
+ struct scsi_cmnd *sc_cmd);
+extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb);
+extern void qedf_update_src_mac(struct fc_lport *lport, u8 *addr);
+extern u8 *qedf_get_src_mac(struct fc_lport *lport);
+extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb);
+extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf);
+extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_warning_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern void qedf_process_error_detect(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun);
+extern void qedf_release_cmd(struct kref *ref);
+extern int qedf_initiate_abts(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts);
+extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport,
+ u8 cmd_type);
+
+extern struct device_attribute *qedf_host_attrs[];
+extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ unsigned int timer_msec);
+extern int qedf_init_mp_req(struct qedf_ioreq *io_req);
+extern void qedf_init_mp_task(struct qedf_ioreq *io_req,
+ struct fcoe_task_context *task_ctx);
+extern void qedf_add_to_sq(struct qedf_rport *fcport, u16 xid,
+ u32 ptu_invalidate, enum fcoe_task_type req_type, u32 offset);
+extern void qedf_ring_doorbell(struct qedf_rport *fcport);
+extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *els_req);
+extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req);
+extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp);
+extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts);
+extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags);
+extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe);
+extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ int result);
+extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id);
+extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf);
+extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf);
+extern void qedf_capture_grc_dump(struct qedf_ctx *qedf);
+extern void qedf_wait_for_upload(struct qedf_ctx *qedf);
+extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
+ struct fcoe_cqe *cqe);
+extern void qedf_restart_rport(struct qedf_rport *fcport);
+extern int qedf_send_rec(struct qedf_ioreq *orig_io_req);
+extern int qedf_post_io_req(struct qedf_rport *fcport,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern int qedf_send_flogi(struct qedf_ctx *qedf);
+extern void qedf_fp_io_handler(struct work_struct *work);
+
+#define FCOE_WORD_TO_BYTE 4
+#define QEDF_MAX_TASK_NUM 0xFFFF
+
+struct fip_vlan {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct {
+ struct fip_mac_desc mac;
+ struct fip_wwn_desc wwnn;
+ } desc;
+};
+
+/* SQ/CQ Sizes */
+#define GBL_RSVD_TASKS 16
+#define NUM_TASKS_PER_CONNECTION 1024
+#define NUM_RW_TASKS_PER_CONNECTION 512
+#define FCOE_PARAMS_CQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS
+
+#define FCOE_PARAMS_CMDQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS
+#define SQ_NUM_ENTRIES NUM_TASKS_PER_CONNECTION
+
+#define QEDF_FCOE_PARAMS_GL_RQ_PI 0
+#define QEDF_FCOE_PARAMS_GL_CMD_PI 1
+
+#define QEDF_READ (1 << 1)
+#define QEDF_WRITE (1 << 0)
+#define MAX_FIBRE_LUNS 0xffffffff
+
+#define QEDF_MAX_NUM_CQS 8
+
+/*
+ * PCI function probe defines
+ */
+/* Probe/remove called during normal PCI probe */
+#define QEDF_MODE_NORMAL 0
+/* Probe/remove called from qed error recovery */
+#define QEDF_MODE_RECOVERY 1
+
+#define SUPPORTED_25000baseKR_Full (1<<27)
+#define SUPPORTED_50000baseKR2_Full (1<<28)
+#define SUPPORTED_100000baseKR4_Full (1<<29)
+#define SUPPORTED_100000baseCR4_Full (1<<30)
+
+#endif
diff --git a/drivers/scsi/qedf/qedf_attr.c b/drivers/scsi/qedf/qedf_attr.c
new file mode 100644
index 0000000..4772061
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_attr.c
@@ -0,0 +1,165 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf.h"
+
+static ssize_t
+qedf_fcoe_mac_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fc_lport *lport = shost_priv(class_to_shost(dev));
+ u32 port_id;
+ u8 lport_src_id[3];
+ u8 fcoe_mac[6];
+
+ port_id = fc_host_port_id(lport->host);
+ lport_src_id[2] = (port_id & 0x000000FF);
+ lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
+ lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
+ fc_fcoe_set_mac(fcoe_mac, lport_src_id);
+
+ return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac);
+}
+
+static DEVICE_ATTR(fcoe_mac, S_IRUGO, qedf_fcoe_mac_show, NULL);
+
+struct device_attribute *qedf_host_attrs[] = {
+ &dev_attr_fcoe_mac,
+ NULL,
+};
+
+extern const struct qed_fcoe_ops *qed_ops;
+
+inline bool qedf_is_vport(struct qedf_ctx *qedf)
+{
+ return (!(qedf->lport->vport == NULL));
+}
+
+/* Get base qedf for physical port from vport */
+static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport;
+ struct fc_lport *base_lport;
+
+ if (!(qedf_is_vport(qedf)))
+ return NULL;
+
+ lport = qedf->lport;
+ base_lport = shost_priv(vport_to_shost(lport->vport));
+ return (struct qedf_ctx *)(lport_priv(base_lport));
+}
+
+void qedf_capture_grc_dump(struct qedf_ctx *qedf)
+{
+ struct qedf_ctx *base_qedf;
+
+ /* Make sure we use the base qedf to take the GRC dump */
+ if (qedf_is_vport(qedf))
+ base_qedf = qedf_get_base_qedf(qedf);
+ else
+ base_qedf = qedf;
+
+ if (test_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags)) {
+ QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_INFO,
+ "GRC Dump already captured.\n");
+ return;
+ }
+
+
+ qedf_get_grc_dump(base_qedf->cdev, qed_ops->common,
+ &base_qedf->grcdump, &base_qedf->grcdump_size);
+ QEDF_ERR(&(base_qedf->dbg_ctx), "GRC Dump captured.\n");
+ set_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags);
+ qedf_uevent_emit(base_qedf->lport->host, QEDF_UEVENT_CODE_GRCDUMP,
+ NULL);
+}
+
+static ssize_t
+qedf_sysfs_read_grcdump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ ssize_t ret = 0;
+ struct fc_lport *lport = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ if (test_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags)) {
+ ret = memory_read_from_buffer(buf, count, &off,
+ qedf->grcdump, qedf->grcdump_size);
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "GRC Dump not captured!\n");
+ }
+
+ return ret;
+}
+
+static ssize_t
+qedf_sysfs_write_grcdump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ struct fc_lport *lport = NULL;
+ struct qedf_ctx *qedf = NULL;
+ long reading;
+ int ret = 0;
+ char msg[40];
+
+ if (off != 0)
+ return ret;
+
+
+ lport = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ qedf = lport_priv(lport);
+
+ buf[1] = 0;
+ ret = kstrtol(buf, 10, &reading);
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Invalid input, err(%d)\n", ret);
+ return ret;
+ }
+
+ memset(msg, 0, sizeof(msg));
+ switch (reading) {
+ case 0:
+ memset(qedf->grcdump, 0, qedf->grcdump_size);
+ clear_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags);
+ break;
+ case 1:
+ qedf_capture_grc_dump(qedf);
+ break;
+ }
+
+ return count;
+}
+
+static struct bin_attribute sysfs_grcdump_attr = {
+ .attr = {
+ .name = "grcdump",
+ .mode = S_IRUSR | S_IWUSR,
+ },
+ .size = 0,
+ .read = qedf_sysfs_read_grcdump,
+ .write = qedf_sysfs_write_grcdump,
+};
+
+static struct sysfs_bin_attrs bin_file_entries[] = {
+ {"grcdump", &sysfs_grcdump_attr},
+ {NULL},
+};
+
+void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf)
+{
+ qedf_create_sysfs_attr(qedf->lport->host, bin_file_entries);
+}
+
+void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf)
+{
+ qedf_remove_sysfs_attr(qedf->lport->host, bin_file_entries);
+}
diff --git a/drivers/scsi/qedf/qedf_dbg.c b/drivers/scsi/qedf/qedf_dbg.c
new file mode 100644
index 0000000..e023f5d
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_dbg.c
@@ -0,0 +1,195 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf_dbg.h"
+#include <linux/vmalloc.h>
+
+void
+qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_err("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_err("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ va_end(va);
+}
+
+void
+qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & QEDF_LOG_WARN))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_warn("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_warn("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+void
+qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & QEDF_LOG_NOTICE))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_notice("[%s]:[%s:%d]:%d: %pV",
+ dev_name(&(qedf->pdev->dev)), nfunc, line,
+ qedf->host_no, &vaf);
+ else
+ pr_notice("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+void
+qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ u32 level, const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & level))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_info("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_info("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+int
+qedf_alloc_grc_dump_buf(u8 **buf, uint32_t len)
+{
+ *buf = vmalloc(len);
+ if (!(*buf))
+ return -ENOMEM;
+
+ memset(*buf, 0, len);
+ return 0;
+}
+
+void
+qedf_free_grc_dump_buf(uint8_t **buf)
+{
+ vfree(*buf);
+ *buf = NULL;
+}
+
+int
+qedf_get_grc_dump(struct qed_dev *cdev, const struct qed_common_ops *common,
+ u8 **buf, uint32_t *grcsize)
+{
+ if (!*buf)
+ return -EINVAL;
+
+ return common->dbg_grc(cdev, *buf, grcsize);
+}
+
+void
+qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
+{
+ char event_string[40];
+ char *envp[] = {event_string, NULL};
+
+ memset(event_string, 0, sizeof(event_string));
+ switch (code) {
+ case QEDF_UEVENT_CODE_GRCDUMP:
+ if (msg)
+ strncpy(event_string, msg, strlen(msg));
+ else
+ sprintf(event_string, "GRCDUMP=%u", shost->host_no);
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+
+ kobject_uevent_env(&shost->shost_gendev.kobj, KOBJ_CHANGE, envp);
+}
+
+int
+qedf_create_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
+{
+ int ret = 0;
+
+ for (; iter->name; iter++) {
+ ret = sysfs_create_bin_file(&shost->shost_gendev.kobj,
+ iter->attr);
+ if (ret)
+ pr_err("Unable to create sysfs %s attr, err(%d).\n",
+ iter->name, ret);
+ }
+ return ret;
+}
+
+void
+qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
+{
+ for (; iter->name; iter++)
+ sysfs_remove_bin_file(&shost->shost_gendev.kobj, iter->attr);
+}
diff --git a/drivers/scsi/qedf/qedf_dbg.h b/drivers/scsi/qedf/qedf_dbg.h
new file mode 100644
index 0000000..23bd706
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_dbg.h
@@ -0,0 +1,154 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef _QEDF_DBG_H_
+#define _QEDF_DBG_H_
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <scsi/scsi_transport.h>
+#include <linux/fs.h>
+
+#include <linux/qed/common_hsi.h>
+#include <linux/qed/qed_if.h>
+
+extern uint qedf_debug;
+
+/* Debug print level definitions */
+#define QEDF_LOG_DEFAULT 0x1 /* Set default logging mask */
+#define QEDF_LOG_INFO 0x2 /*
+ * Informational logs,
+ * MAC address, WWPN, WWNN
+ */
+#define QEDF_LOG_DISC 0x4 /* Init, discovery, rport */
+#define QEDF_LOG_LL2 0x8 /* LL2, VLAN logs */
+#define QEDF_LOG_CONN 0x10 /* Connection setup, cleanup */
+#define QEDF_LOG_EVT 0x20 /* Events, link, mtu */
+#define QEDF_LOG_TIMER 0x40 /* Timer events */
+#define QEDF_LOG_MP_REQ 0x80 /* Middle Path (MP) logs */
+#define QEDF_LOG_SCSI_TM 0x100 /* SCSI Aborts, Task Mgmt */
+#define QEDF_LOG_UNSOL 0x200 /* unsolicited event logs */
+#define QEDF_LOG_IO 0x400 /* scsi cmd, completion */
+#define QEDF_LOG_MQ 0x800 /* Multi Queue logs */
+#define QEDF_LOG_BSG 0x1000 /* BSG logs */
+#define QEDF_LOG_DEBUGFS 0x2000 /* debugFS logs */
+#define QEDF_LOG_LPORT 0x4000 /* lport logs */
+#define QEDF_LOG_ELS 0x8000 /* ELS logs */
+#define QEDF_LOG_NPIV 0x10000 /* NPIV logs */
+#define QEDF_LOG_SESS 0x20000 /* Conection setup, cleanup */
+#define QEDF_LOG_TID 0x80000 /*
+ * FW TID context acquire
+ * free
+ */
+#define QEDF_TRACK_TID 0x100000 /*
+ * Track TID state. To be
+ * enabled only at module load
+ * and not run-time.
+ */
+#define QEDF_TRACK_CMD_LIST 0x300000 /*
+ * Track active cmd list nodes,
+ * done with reference to TID,
+ * hence TRACK_TID also enabled.
+ */
+#define QEDF_LOG_NOTICE 0x40000000 /* Notice logs */
+#define QEDF_LOG_WARN 0x80000000 /* Warning logs */
+
+/* Debug context structure */
+struct qedf_dbg_ctx {
+ unsigned int host_no;
+ struct pci_dev *pdev;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *bdf_dentry;
+#endif
+};
+
+#define QEDF_ERR(pdev, fmt, ...) \
+ qedf_dbg_err(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_WARN(pdev, fmt, ...) \
+ qedf_dbg_warn(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_NOTICE(pdev, fmt, ...) \
+ qedf_dbg_notice(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_INFO(pdev, level, fmt, ...) \
+ qedf_dbg_info(pdev, __func__, __LINE__, level, fmt, \
+ ## __VA_ARGS__)
+
+extern void qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...);
+extern void qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *, ...);
+extern void qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func,
+ u32 line, const char *, ...);
+extern void qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ u32 info, const char *fmt, ...);
+
+/* GRC Dump related defines */
+
+struct Scsi_Host;
+
+#define QEDF_UEVENT_CODE_GRCDUMP 0
+
+struct sysfs_bin_attrs {
+ char *name;
+ struct bin_attribute *attr;
+};
+
+extern int qedf_alloc_grc_dump_buf(uint8_t **buf, uint32_t len);
+extern void qedf_free_grc_dump_buf(uint8_t **buf);
+extern int qedf_get_grc_dump(struct qed_dev *cdev,
+ const struct qed_common_ops *common, uint8_t **buf,
+ uint32_t *grcsize);
+extern void qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg);
+extern int qedf_create_sysfs_attr(struct Scsi_Host *shost,
+ struct sysfs_bin_attrs *iter);
+extern void qedf_remove_sysfs_attr(struct Scsi_Host *shost,
+ struct sysfs_bin_attrs *iter);
+
+#ifdef CONFIG_DEBUG_FS
+/* DebugFS related code */
+struct qedf_list_of_funcs {
+ char *oper_str;
+ ssize_t (*oper_func)(struct qedf_dbg_ctx *qedf);
+};
+
+struct qedf_debugfs_ops {
+ char *name;
+ struct qedf_list_of_funcs *qedf_funcs;
+};
+
+#define qedf_dbg_fileops(drv, ops) \
+{ \
+ .owner = THIS_MODULE, \
+ .open = simple_open, \
+ .read = drv##_dbg_##ops##_cmd_read, \
+ .write = drv##_dbg_##ops##_cmd_write \
+}
+
+/* Used for debugfs sequential files */
+#define qedf_dbg_fileops_seq(drv, ops) \
+{ \
+ .owner = THIS_MODULE, \
+ .open = drv##_dbg_##ops##_open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+}
+
+extern void qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
+ struct qedf_debugfs_ops *dops,
+ struct file_operations *fops);
+extern void qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf);
+extern void qedf_dbg_init(char *drv_name);
+extern void qedf_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
+
+#endif /* _QEDF_DBG_H_ */
diff --git a/drivers/scsi/qedf/qedf_debugfs.c b/drivers/scsi/qedf/qedf_debugfs.c
new file mode 100644
index 0000000..cb08b62
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_debugfs.c
@@ -0,0 +1,460 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+#include "qedf.h"
+#include "qedf_dbg.h"
+
+static struct dentry *qedf_dbg_root;
+
+/**
+ * qedf_dbg_host_init - setup the debugfs file for the pf
+ * @pf: the pf that is starting up
+ **/
+void
+qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
+ struct qedf_debugfs_ops *dops,
+ struct file_operations *fops)
+{
+ char host_dirname[32];
+ struct dentry *file_dentry = NULL;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Creating debugfs host node\n");
+ /* create pf dir */
+ sprintf(host_dirname, "host%u", qedf->host_no);
+ qedf->bdf_dentry = debugfs_create_dir(host_dirname, qedf_dbg_root);
+ if (!qedf->bdf_dentry)
+ return;
+
+ /* create debugfs files */
+ while (dops) {
+ if (!(dops->name))
+ break;
+
+ file_dentry = debugfs_create_file(dops->name, 0600,
+ qedf->bdf_dentry, qedf,
+ fops);
+ if (!file_dentry) {
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS,
+ "Debugfs entry %s creation failed\n",
+ dops->name);
+ debugfs_remove_recursive(qedf->bdf_dentry);
+ return;
+ }
+ dops++;
+ fops++;
+ }
+}
+
+/**
+ * qedf_dbg_host_exit - clear out the pf's debugfs entries
+ * @pf: the pf that is stopping
+ **/
+void
+qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf)
+{
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Destroying debugfs host "
+ "entry\n");
+ /* remove debugfs entries of this PF */
+ debugfs_remove_recursive(qedf->bdf_dentry);
+ qedf->bdf_dentry = NULL;
+}
+
+/**
+ * qedf_dbg_init - start up debugfs for the driver
+ **/
+void
+qedf_dbg_init(char *drv_name)
+{
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Creating debugfs root node\n");
+
+ /* create qed dir in root of debugfs. NULL means debugfs root */
+ qedf_dbg_root = debugfs_create_dir(drv_name, NULL);
+ if (!qedf_dbg_root)
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Init of debugfs "
+ "failed\n");
+}
+
+/**
+ * qedf_dbg_exit - clean out the driver's debugfs entries
+ **/
+void
+qedf_dbg_exit(void)
+{
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Destroying debugfs root "
+ "entry\n");
+
+ /* remove qed dir in root of debugfs */
+ debugfs_remove_recursive(qedf_dbg_root);
+ qedf_dbg_root = NULL;
+}
+
+struct qedf_debugfs_ops qedf_debugfs_ops[] = {
+ { "fp_int", NULL },
+ { "io_trace", NULL },
+ { "debug", NULL },
+ { "stop_io_on_error", NULL},
+ { "driver_stats", NULL},
+ { "clear_stats", NULL},
+ { "offload_stats", NULL},
+ /* This must be last */
+ { NULL, NULL }
+};
+
+DECLARE_PER_CPU(struct qedf_percpu_iothread_s, qedf_percpu_iothreads);
+
+static ssize_t
+qedf_dbg_fp_int_cmd_read(struct file *filp, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ size_t cnt = 0;
+ int id;
+ struct qedf_fastpath *fp = NULL;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ cnt = sprintf(buffer, "\nFastpath I/O completions\n\n");
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ if (fp->sb_id == QEDF_SB_ID_NULL)
+ continue;
+ cnt += sprintf((buffer + cnt), "#%d: %lu\n", id,
+ fp->completions);
+ }
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_fp_int_cmd_write(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ if (!count || *ppos)
+ return 0;
+
+ return count;
+}
+
+static ssize_t
+qedf_dbg_debug_cmd_read(struct file *filp, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ int cnt;
+ struct qedf_dbg_ctx *qedf =
+ (struct qedf_dbg_ctx *)filp->private_data;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "entered\n");
+ cnt = sprintf(buffer, "debug mask = 0x%x\n", qedf_debug);
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_debug_cmd_write(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ uint32_t val;
+ void *kern_buf;
+ int rval;
+ struct qedf_dbg_ctx *qedf =
+ (struct qedf_dbg_ctx *)filp->private_data;
+
+ if (!count || *ppos)
+ return 0;
+
+ kern_buf = memdup_user(buffer, count);
+ if (IS_ERR(kern_buf))
+ return PTR_ERR(kern_buf);
+
+ rval = kstrtouint(kern_buf, 10, &val);
+ kfree(kern_buf);
+ if (rval)
+ return rval;
+
+ if (val == 1)
+ qedf_debug = QEDF_DEFAULT_LOG_MASK;
+ else
+ qedf_debug = val;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Setting debug=0x%x.\n", val);
+ return count;
+}
+
+static ssize_t
+qedf_dbg_stop_io_on_error_cmd_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int cnt;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+ cnt = sprintf(buffer, "%s\n",
+ qedf->stop_io_on_error ? "true" : "false");
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_stop_io_on_error_cmd_write(struct file *filp,
+ const char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ void *kern_buf;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
+ dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ if (!count || *ppos)
+ return 0;
+
+ kern_buf = memdup_user(buffer, 6);
+ if (IS_ERR(kern_buf))
+ return PTR_ERR(kern_buf);
+
+ if (strncmp(kern_buf, "false", 5) == 0)
+ qedf->stop_io_on_error = false;
+ else if (strncmp(kern_buf, "true", 4) == 0)
+ qedf->stop_io_on_error = true;
+ else if (strncmp(kern_buf, "now", 3) == 0)
+ /* Trigger from user to stop all I/O on this host */
+ set_bit(QEDF_DBG_STOP_IO, &qedf->flags);
+
+ kfree(kern_buf);
+ return count;
+}
+
+static int
+qedf_io_trace_show(struct seq_file *s, void *unused)
+{
+ int i, idx = 0;
+ struct qedf_ctx *qedf = s->private;
+ struct qedf_dbg_ctx *qedf_dbg = &qedf->dbg_ctx;
+ struct qedf_io_log *io_log;
+ unsigned long flags;
+
+ if (!qedf_io_tracing) {
+ seq_puts(s, "I/O tracing not enabled.\n");
+ goto out;
+ }
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ spin_lock_irqsave(&qedf->io_trace_lock, flags);
+ idx = qedf->io_trace_idx;
+ for (i = 0; i < QEDF_IO_TRACE_SIZE; i++) {
+ io_log = &qedf->io_trace_buf[idx];
+ seq_printf(s, "%d:", io_log->direction);
+ seq_printf(s, "0x%x:", io_log->task_id);
+ seq_printf(s, "0x%06x:", io_log->port_id);
+ seq_printf(s, "%d:", io_log->lun);
+ seq_printf(s, "0x%02x:", io_log->op);
+ seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
+ io_log->lba[1], io_log->lba[2], io_log->lba[3]);
+ seq_printf(s, "%d:", io_log->bufflen);
+ seq_printf(s, "%d:", io_log->sg_count);
+ seq_printf(s, "0x%08x:", io_log->result);
+ seq_printf(s, "%lu:", io_log->jiffies);
+ seq_printf(s, "%d:", io_log->refcount);
+ seq_printf(s, "%d:", io_log->req_cpu);
+ seq_printf(s, "%d:", io_log->int_cpu);
+ seq_printf(s, "%d:", io_log->rsp_cpu);
+ seq_printf(s, "%d\n", io_log->sge_type);
+
+ idx++;
+ if (idx == QEDF_IO_TRACE_SIZE)
+ idx = 0;
+ }
+ spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
+
+out:
+ return 0;
+}
+
+static int
+qedf_dbg_io_trace_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_io_trace_show, qedf);
+}
+
+static int
+qedf_driver_stats_show(struct seq_file *s, void *unused)
+{
+ struct qedf_ctx *qedf = s->private;
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+
+ seq_printf(s, "cmg_mgr free io_reqs: %d\n",
+ atomic_read(&qedf->cmd_mgr->free_list_cnt));
+ seq_printf(s, "slow SGEs: %d\n", qedf->slow_sge_ios);
+ seq_printf(s, "single SGEs: %d\n", qedf->single_sge_ios);
+ seq_printf(s, "fast SGEs: %d\n\n", qedf->fast_sge_ios);
+
+ seq_puts(s, "Offloaded ports:\n\n");
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ seq_printf(s, "%06x: free_sqes: %d, num_active_ios: %d\n",
+ rdata->ids.port_id, atomic_read(&fcport->free_sqes),
+ atomic_read(&fcport->num_active_ios));
+ }
+ rcu_read_unlock();
+
+ return 0;
+}
+
+static int
+qedf_dbg_driver_stats_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_driver_stats_show, qedf);
+}
+
+static ssize_t
+qedf_dbg_clear_stats_cmd_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int cnt = 0;
+
+ /* Essentially a read stub */
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_clear_stats_cmd_write(struct file *filp,
+ const char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
+ dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Clearing stat counters.\n");
+
+ if (!count || *ppos)
+ return 0;
+
+ /* Clear stat counters exposed by 'stats' node */
+ qedf->slow_sge_ios = 0;
+ qedf->single_sge_ios = 0;
+ qedf->fast_sge_ios = 0;
+
+ return count;
+}
+
+static int
+qedf_offload_stats_show(struct seq_file *s, void *unused)
+{
+ struct qedf_ctx *qedf = s->private;
+ struct qed_fcoe_stats *fw_fcoe_stats;
+
+ fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
+ if (!fw_fcoe_stats) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
+ "fw_fcoe_stats.\n");
+ goto out;
+ }
+
+ /* Query firmware for offload stats */
+ qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
+
+ seq_printf(s, "fcoe_rx_byte_cnt=%llu\n"
+ "fcoe_rx_data_pkt_cnt=%llu\n"
+ "fcoe_rx_xfer_pkt_cnt=%llu\n"
+ "fcoe_rx_other_pkt_cnt=%llu\n"
+ "fcoe_silent_drop_pkt_cmdq_full_cnt=%u\n"
+ "fcoe_silent_drop_pkt_crc_error_cnt=%u\n"
+ "fcoe_silent_drop_pkt_task_invalid_cnt=%u\n"
+ "fcoe_silent_drop_total_pkt_cnt=%u\n"
+ "fcoe_silent_drop_pkt_rq_full_cnt=%u\n"
+ "fcoe_tx_byte_cnt=%llu\n"
+ "fcoe_tx_data_pkt_cnt=%llu\n"
+ "fcoe_tx_xfer_pkt_cnt=%llu\n"
+ "fcoe_tx_other_pkt_cnt=%llu\n",
+ fw_fcoe_stats->fcoe_rx_byte_cnt,
+ fw_fcoe_stats->fcoe_rx_data_pkt_cnt,
+ fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt,
+ fw_fcoe_stats->fcoe_rx_other_pkt_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_cmdq_full_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_task_invalid_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_rq_full_cnt,
+ fw_fcoe_stats->fcoe_tx_byte_cnt,
+ fw_fcoe_stats->fcoe_tx_data_pkt_cnt,
+ fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt,
+ fw_fcoe_stats->fcoe_tx_other_pkt_cnt);
+
+ kfree(fw_fcoe_stats);
+out:
+ return 0;
+}
+
+static int
+qedf_dbg_offload_stats_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_offload_stats_show, qedf);
+}
+
+
+const struct file_operations qedf_dbg_fops[] = {
+ qedf_dbg_fileops(qedf, fp_int),
+ qedf_dbg_fileops_seq(qedf, io_trace),
+ qedf_dbg_fileops(qedf, debug),
+ qedf_dbg_fileops(qedf, stop_io_on_error),
+ qedf_dbg_fileops_seq(qedf, driver_stats),
+ qedf_dbg_fileops(qedf, clear_stats),
+ qedf_dbg_fileops_seq(qedf, offload_stats),
+ /* This must be last */
+ { NULL, NULL },
+};
+
+#else /* CONFIG_DEBUG_FS */
+void qedf_dbg_host_init(struct qedf_dbg_ctx *);
+void qedf_dbg_host_exit(struct qedf_dbg_ctx *);
+void qedf_dbg_init(char *);
+void qedf_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c
new file mode 100644
index 0000000..78f1c25
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_els.c
@@ -0,0 +1,949 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf.h"
+
+/* It's assumed that the lock is held when calling this function. */
+static int qedf_initiate_els(struct qedf_rport *fcport, unsigned int op,
+ void *data, uint32_t data_len,
+ void (*cb_func)(struct qedf_els_cb_arg *cb_arg),
+ struct qedf_els_cb_arg *cb_arg, uint32_t timer_msec)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct fc_lport *lport = qedf->lport;
+ struct qedf_ioreq *els_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ struct fcoe_task_context *task;
+ int rc = 0;
+ uint32_t did, sid;
+ uint16_t xid;
+ uint32_t start_time = jiffies / HZ;
+ uint32_t current_time;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending ELS\n");
+
+ rc = fc_remote_port_chkready(fcport->rport);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: rport not ready\n", op);
+ rc = -EAGAIN;
+ goto els_err;
+ }
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: link is not ready\n",
+ op);
+ rc = -EAGAIN;
+ goto els_err;
+ }
+
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: fcport not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+
+retry_els:
+ els_req = qedf_alloc_cmd(fcport, QEDF_ELS);
+ if (!els_req) {
+ current_time = jiffies / HZ;
+ if ((current_time - start_time) > 10) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "els: Failed els 0x%x\n", op);
+ rc = -ENOMEM;
+ goto els_err;
+ }
+ mdelay(20 * USEC_PER_MSEC);
+ goto retry_els;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "initiate_els els_req = "
+ "0x%p cb_arg = %p xid = %x\n", els_req, cb_arg,
+ els_req->xid);
+ els_req->sc_cmd = NULL;
+ els_req->cmd_type = QEDF_ELS;
+ els_req->fcport = fcport;
+ els_req->cb_func = cb_func;
+ cb_arg->io_req = els_req;
+ cb_arg->op = op;
+ els_req->cb_arg = cb_arg;
+ els_req->data_xfer_len = data_len;
+
+ /* Record which cpu this request is associated with */
+ els_req->cpu = smp_processor_id();
+
+ mp_req = (struct qedf_mp_req *)&(els_req->mp_req);
+ rc = qedf_init_mp_req(els_req);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "ELS MP request init failed\n");
+ kref_put(&els_req->refcount, qedf_release_cmd);
+ goto els_err;
+ } else {
+ rc = 0;
+ }
+
+ /* Fill ELS Payload */
+ if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+ memcpy(mp_req->req_buf, data, data_len);
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "Invalid ELS op 0x%x\n", op);
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ kref_put(&els_req->refcount, qedf_release_cmd);
+ rc = -EINVAL;
+ }
+
+ if (rc)
+ goto els_err;
+
+ /* Fill FC header */
+ fc_hdr = &(mp_req->req_fc_hdr);
+
+ did = fcport->rdata->ids.port_id;
+ sid = fcport->sid;
+
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, sid, did,
+ FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+
+ /* Obtain exchange id */
+ xid = els_req->xid;
+
+ /* Initialize task context for this IO request */
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+ qedf_init_mp_task(els_req, task);
+
+ /* Put timer on original I/O request */
+ if (timer_msec)
+ qedf_cmd_timer_set(qedf, els_req, timer_msec);
+
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_MIDPATH, 0);
+
+ /* Ring doorbell */
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Ringing doorbell for ELS "
+ "req\n");
+ qedf_ring_doorbell(fcport);
+els_err:
+ return rc;
+}
+
+void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *els_req)
+{
+ struct fcoe_task_context *task_ctx;
+ struct scsi_cmnd *sc_cmd;
+ uint16_t xid;
+ struct fcoe_cqe_midpath_info *mp_info;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered with xid = 0x%x"
+ " cmd_type = %d.\n", els_req->xid, els_req->cmd_type);
+
+ /* Kill the ELS timer */
+ cancel_delayed_work(&els_req->timeout_work);
+
+ xid = els_req->xid;
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ sc_cmd = els_req->sc_cmd;
+
+ /* Get ELS response length from CQE */
+ mp_info = &cqe->cqe_info.midpath_info;
+ els_req->mp_req.resp_len = mp_info->data_placement_size;
+
+ /* Parse ELS response */
+ if ((els_req->cb_func) && (els_req->cb_arg)) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ kref_put(&els_req->refcount, qedf_release_cmd);
+}
+
+static void qedf_rrq_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *rrq_req;
+ struct qedf_ctx *qedf;
+ int refcount;
+
+ rrq_req = cb_arg->io_req;
+ qedf = rrq_req->fcport->qedf;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered.\n");
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ if (rrq_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ rrq_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "rrq_compl: orig io = %p,"
+ " orig xid = 0x%x, rrq_xid = 0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, rrq_req->xid, refcount);
+
+ /* This should return the aborted io_req to the command pool */
+ if (orig_io_req)
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+
+out_free:
+ kfree(cb_arg);
+}
+
+/* Assumes kref is already held by caller */
+int qedf_send_rrq(struct qedf_ioreq *aborted_io_req)
+{
+
+ struct fc_els_rrq rrq;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t sid;
+ uint32_t r_a_tov;
+ int rc;
+
+ if (!aborted_io_req) {
+ QEDF_ERR(NULL, "abort_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = aborted_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending RRQ orig "
+ "io = %p, orig_xid = 0x%x\n", aborted_io_req,
+ aborted_io_req->xid);
+ memset(&rrq, 0, sizeof(rrq));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "RRQ\n");
+ rc = -ENOMEM;
+ goto rrq_err;
+ }
+
+ cb_arg->aborted_io_req = aborted_io_req;
+
+ rrq.rrq_cmd = ELS_RRQ;
+ hton24(rrq.rrq_s_id, sid);
+ rrq.rrq_ox_id = htons(aborted_io_req->xid);
+ rrq.rrq_rx_id =
+ htons(aborted_io_req->task->tstorm_st_context.read_write.rx_id);
+
+ rc = qedf_initiate_els(fcport, ELS_RRQ, &rrq, sizeof(rrq),
+ qedf_rrq_compl, cb_arg, r_a_tov);
+
+rrq_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "RRQ failed - release orig io "
+ "req 0x%x\n", aborted_io_req->xid);
+ kfree(cb_arg);
+ kref_put(&aborted_io_req->refcount, qedf_release_cmd);
+ }
+ return rc;
+}
+
+static void qedf_process_l2_frame_compl(struct qedf_rport *fcport,
+ struct fc_frame *fp,
+ u16 l2_oxid)
+{
+ struct fc_lport *lport = fcport->qedf->lport;
+ struct fc_frame_header *fh;
+ u32 crc;
+
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+
+ /* Set the OXID we return to what libfc used */
+ if (l2_oxid != FC_XID_UNKNOWN)
+ fh->fh_ox_id = htons(l2_oxid);
+
+ /* Setup header fields */
+ fh->fh_r_ctl = FC_RCTL_ELS_REP;
+ fh->fh_type = FC_TYPE_ELS;
+ /* Last sequence, end sequence */
+ fh->fh_f_ctl[0] = 0x98;
+ hton24(fh->fh_d_id, lport->port_id);
+ hton24(fh->fh_s_id, fcport->rdata->ids.port_id);
+ fh->fh_rx_id = 0xffff;
+
+ /* Set frame attributes */
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+
+ /* Send completed request to libfc */
+ fc_exch_recv(lport, fp);
+}
+
+/*
+ * In instances where an ELS command times out we may need to restart the
+ * rport by logging out and then logging back in.
+ */
+void qedf_restart_rport(struct qedf_rport *fcport)
+{
+ struct fc_lport *lport;
+ struct fc_rport_priv *rdata;
+ u32 port_id;
+
+ if (!fcport)
+ return;
+
+ rdata = fcport->rdata;
+ if (rdata) {
+ lport = fcport->qedf->lport;
+ port_id = rdata->ids.port_id;
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "LOGO port_id=%x.\n", port_id);
+ fc_rport_logoff(rdata);
+ /* Recreate the rport and log back in */
+ rdata = fc_rport_create(lport, port_id);
+ if (rdata)
+ fc_rport_login(rdata);
+ }
+}
+
+static void qedf_l2_els_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *els_req;
+ struct qedf_rport *fcport;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame *fp;
+ struct fc_frame_header *fh, *mp_fc_hdr;
+ void *resp_buf, *fc_payload;
+ u32 resp_len;
+ u16 l2_oxid;
+
+ l2_oxid = cb_arg->l2_oxid;
+ els_req = cb_arg->io_req;
+
+ if (!els_req) {
+ QEDF_ERR(NULL, "els_req is NULL.\n");
+ goto free_arg;
+ }
+
+ /*
+ * If we are flushing the command just free the cb_arg as none of the
+ * response data will be valid.
+ */
+ if (els_req->event == QEDF_IOREQ_EV_ELS_FLUSH)
+ goto free_arg;
+
+ fcport = els_req->fcport;
+ mp_req = &(els_req->mp_req);
+ mp_fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ /*
+ * If a middle path ELS command times out, don't try to return
+ * the command but rather do any internal cleanup and then libfc
+ * timeout the command and clean up its internal resources.
+ */
+ if (els_req->event == QEDF_IOREQ_EV_ELS_TMO) {
+ /*
+ * If ADISC times out, libfc will timeout the exchange and then
+ * try to send a PLOGI which will timeout since the session is
+ * still offloaded. Force libfc to logout the session which
+ * will offload the connection and allow the PLOGI response to
+ * flow over the LL2 path.
+ */
+ if (cb_arg->op == ELS_ADISC)
+ qedf_restart_rport(fcport);
+ return;
+ }
+
+ if (sizeof(struct fc_frame_header) + resp_len > QEDF_PAGE_SIZE) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "resp_len is "
+ "beyond page size.\n");
+ goto free_arg;
+ }
+
+ fp = fc_frame_alloc(fcport->qedf->lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ return;
+ }
+
+ /* Copy frame header from firmware into fp */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, mp_fc_hdr, sizeof(struct fc_frame_header));
+
+ /* Copy payload from firmware into fp */
+ fc_payload = fc_frame_payload_get(fp, resp_len);
+ memcpy(fc_payload, resp_buf, resp_len);
+
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Completing OX_ID 0x%x back to libfc.\n", l2_oxid);
+ qedf_process_l2_frame_compl(fcport, fp, l2_oxid);
+
+free_arg:
+ kfree(cb_arg);
+}
+
+int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp)
+{
+ struct fc_els_adisc *adisc;
+ struct fc_frame_header *fh;
+ struct fc_lport *lport = fcport->qedf->lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t r_a_tov = lport->r_a_tov;
+ int rc;
+
+ qedf = fcport->qedf;
+ fh = fc_frame_header_get(fp);
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "ADISC\n");
+ rc = -ENOMEM;
+ goto adisc_err;
+ }
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Sending ADISC ox_id=0x%x.\n", cb_arg->l2_oxid);
+
+ adisc = fc_frame_payload_get(fp, sizeof(*adisc));
+
+ rc = qedf_initiate_els(fcport, ELS_ADISC, adisc, sizeof(*adisc),
+ qedf_l2_els_compl, cb_arg, r_a_tov);
+
+adisc_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "ADISC failed.\n");
+ kfree(cb_arg);
+ }
+ return rc;
+}
+
+static void qedf_srr_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *srr_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *mp_fc_hdr, *fh;
+ struct fc_frame *fp;
+ void *resp_buf, *fc_payload;
+ u32 resp_len;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ int refcount;
+ u8 opcode;
+
+ srr_req = cb_arg->io_req;
+ qedf = srr_req->fcport->qedf;
+ lport = qedf->lport;
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ clear_bit(QEDF_CMD_SRR_SENT, &orig_io_req->flags);
+
+ if (srr_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ srr_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered: orig_io=%p,"
+ " orig_io_xid=0x%x, rec_xid=0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, srr_req->xid, refcount);
+
+ /* If a SRR times out, simply free resources */
+ if (srr_req->event == QEDF_IOREQ_EV_ELS_TMO)
+ goto out_free;
+
+ /* Normalize response data into struct fc_frame */
+ mp_req = &(srr_req->mp_req);
+ mp_fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ fp = fc_frame_alloc(lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ goto out_free;
+ }
+
+ /* Copy frame header from firmware into fp */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, mp_fc_hdr, sizeof(struct fc_frame_header));
+
+ /* Copy payload from firmware into fp */
+ fc_payload = fc_frame_payload_get(fp, resp_len);
+ memcpy(fc_payload, resp_buf, resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+ switch (opcode) {
+ case ELS_LS_ACC:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "SRR success.\n");
+ break;
+ case ELS_LS_RJT:
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_ELS,
+ "SRR rejected.\n");
+ qedf_initiate_abts(orig_io_req, true);
+ break;
+ }
+
+ fc_frame_free(fp);
+out_free:
+ /* Put reference for original command since SRR completed */
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ kfree(cb_arg);
+}
+
+static int qedf_send_srr(struct qedf_ioreq *orig_io_req, u32 offset, u8 r_ctl)
+{
+ struct fcp_srr srr;
+ struct qedf_ctx *qedf;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ u32 sid, r_a_tov;
+ int rc;
+
+ if (!orig_io_req) {
+ QEDF_ERR(NULL, "orig_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = orig_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ /* Take reference until SRR command completion */
+ kref_get(&orig_io_req->refcount);
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending SRR orig_io=%p, "
+ "orig_xid=0x%x\n", orig_io_req, orig_io_req->xid);
+ memset(&srr, 0, sizeof(srr));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "SRR\n");
+ rc = -ENOMEM;
+ goto srr_err;
+ }
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ srr.srr_op = ELS_SRR;
+ srr.srr_ox_id = htons(orig_io_req->xid);
+ srr.srr_rx_id = htons(orig_io_req->rx_id);
+ srr.srr_rel_off = htonl(offset);
+ srr.srr_r_ctl = r_ctl;
+
+ rc = qedf_initiate_els(fcport, ELS_SRR, &srr, sizeof(srr),
+ qedf_srr_compl, cb_arg, r_a_tov);
+
+srr_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SRR failed - release orig_io_req"
+ "=0x%x\n", orig_io_req->xid);
+ kfree(cb_arg);
+ /* If we fail to queue SRR, send ABTS to orig_io */
+ qedf_initiate_abts(orig_io_req, true);
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ } else
+ /* Tell other threads that SRR is in progress */
+ set_bit(QEDF_CMD_SRR_SENT, &orig_io_req->flags);
+
+ return rc;
+}
+
+static void qedf_initiate_seq_cleanup(struct qedf_ioreq *orig_io_req,
+ u32 offset, u8 r_ctl)
+{
+ struct qedf_rport *fcport;
+ unsigned long flags;
+ struct qedf_els_cb_arg *cb_arg;
+
+ fcport = orig_io_req->fcport;
+
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Doing sequence cleanup for xid=0x%x offset=%u.\n",
+ orig_io_req->xid, offset);
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Unable to allocate cb_arg "
+ "for sequence cleanup\n");
+ return;
+ }
+
+ /* Get reference for cleanup request */
+ kref_get(&orig_io_req->refcount);
+
+ orig_io_req->cmd_type = QEDF_SEQ_CLEANUP;
+ cb_arg->offset = offset;
+ cb_arg->r_ctl = r_ctl;
+ orig_io_req->cb_arg = cb_arg;
+
+ qedf_cmd_timer_set(fcport->qedf, orig_io_req,
+ QEDF_CLEANUP_TIMEOUT * HZ);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ qedf_add_to_sq(fcport, orig_io_req->xid, 0,
+ FCOE_TASK_TYPE_SEQUENCE_CLEANUP, offset);
+ qedf_ring_doorbell(fcport);
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+}
+
+void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req)
+{
+ int rc;
+ struct qedf_els_cb_arg *cb_arg;
+
+ cb_arg = io_req->cb_arg;
+
+ /* If we timed out just free resources */
+ if (io_req->event == QEDF_IOREQ_EV_ELS_TMO || !cqe)
+ goto free;
+
+ /* Kill the timer we put on the request */
+ cancel_delayed_work_sync(&io_req->timeout_work);
+
+ rc = qedf_send_srr(io_req, cb_arg->offset, cb_arg->r_ctl);
+ if (rc)
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to send SRR, I/O will "
+ "abort, xid=0x%x.\n", io_req->xid);
+free:
+ kfree(cb_arg);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+static bool qedf_requeue_io_req(struct qedf_ioreq *orig_io_req)
+{
+ struct qedf_rport *fcport;
+ struct qedf_ioreq *new_io_req;
+ unsigned long flags;
+ bool rc = false;
+
+ fcport = orig_io_req->fcport;
+ if (!fcport) {
+ QEDF_ERR(NULL, "fcport is NULL.\n");
+ goto out;
+ }
+
+ if (!orig_io_req->sc_cmd) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "sc_cmd is NULL for "
+ "xid=0x%x.\n", orig_io_req->xid);
+ goto out;
+ }
+
+ new_io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
+ if (!new_io_req) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Could not allocate new "
+ "io_req.\n");
+ goto out;
+ }
+
+ new_io_req->sc_cmd = orig_io_req->sc_cmd;
+
+ /*
+ * This keeps the sc_cmd struct from being returned to the tape
+ * driver and being requeued twice. We do need to put a reference
+ * for the original I/O request since we will not do a SCSI completion
+ * for it.
+ */
+ orig_io_req->sc_cmd = NULL;
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ /* kref for new command released in qedf_post_io_req on error */
+ if (qedf_post_io_req(fcport, new_io_req)) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Unable to post io_req\n");
+ /* Return SQE to pool */
+ atomic_inc(&fcport->free_sqes);
+ } else {
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Reissued SCSI command from orig_xid=0x%x on "
+ "new_xid=0x%x.\n", orig_io_req->xid, new_io_req->xid);
+ /*
+ * Abort the original I/O but do not return SCSI command as
+ * it has been reissued on another OX_ID.
+ */
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+ qedf_initiate_abts(orig_io_req, false);
+ goto out;
+ }
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+out:
+ return rc;
+}
+
+
+static void qedf_rec_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *rec_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *mp_fc_hdr, *fh;
+ struct fc_frame *fp;
+ void *resp_buf, *fc_payload;
+ u32 resp_len;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ int refcount;
+ enum fc_rctl r_ctl;
+ struct fc_els_ls_rjt *rjt;
+ struct fc_els_rec_acc *acc;
+ u8 opcode;
+ u32 offset, e_stat;
+ struct scsi_cmnd *sc_cmd;
+ bool srr_needed = false;
+
+ rec_req = cb_arg->io_req;
+ qedf = rec_req->fcport->qedf;
+ lport = qedf->lport;
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ if (rec_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ rec_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered: orig_io=%p,"
+ " orig_io_xid=0x%x, rec_xid=0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, rec_req->xid, refcount);
+
+ /* If a REC times out, free resources */
+ if (rec_req->event == QEDF_IOREQ_EV_ELS_TMO)
+ goto out_free;
+
+ /* Normalize response data into struct fc_frame */
+ mp_req = &(rec_req->mp_req);
+ mp_fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ acc = resp_buf = mp_req->resp_buf;
+
+ fp = fc_frame_alloc(lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ goto out_free;
+ }
+
+ /* Copy frame header from firmware into fp */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, mp_fc_hdr, sizeof(struct fc_frame_header));
+
+ /* Copy payload from firmware into fp */
+ fc_payload = fc_frame_payload_get(fp, resp_len);
+ memcpy(fc_payload, resp_buf, resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+ if (opcode == ELS_LS_RJT) {
+ rjt = fc_frame_payload_get(fp, sizeof(*rjt));
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Received LS_RJT for REC: er_reason=0x%x, "
+ "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);
+ /*
+ * The following response(s) mean that we need to reissue the
+ * request on another exchange. We need to do this without
+ * informing the upper layers lest it cause an application
+ * error.
+ */
+ if ((rjt->er_reason == ELS_RJT_LOGIC ||
+ rjt->er_reason == ELS_RJT_UNAB) &&
+ rjt->er_explan == ELS_EXPL_OXID_RXID) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Handle CMD LOST case.\n");
+ qedf_requeue_io_req(orig_io_req);
+ }
+ } else if (opcode == ELS_LS_ACC) {
+ offset = ntohl(acc->reca_fc4value);
+ e_stat = ntohl(acc->reca_e_stat);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Received LS_ACC for REC: offset=0x%x, e_stat=0x%x.\n",
+ offset, e_stat);
+ if (e_stat & ESB_ST_SEQ_INIT) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Target has the seq init\n");
+ goto out_free_frame;
+ }
+ sc_cmd = orig_io_req->sc_cmd;
+ if (!sc_cmd) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "sc_cmd is NULL for xid=0x%x.\n",
+ orig_io_req->xid);
+ goto out_free_frame;
+ }
+ /* SCSI write case */
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ if (offset == orig_io_req->data_xfer_len) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "WRITE - response lost.\n");
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ srr_needed = true;
+ offset = 0;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "WRITE - XFER_RDY/DATA lost.\n");
+ r_ctl = FC_RCTL_DD_DATA_DESC;
+ /* Use data from warning CQE instead of REC */
+ offset = orig_io_req->tx_buf_off;
+ }
+ /* SCSI read case */
+ } else {
+ if (orig_io_req->rx_buf_off ==
+ orig_io_req->data_xfer_len) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "READ - response lost.\n");
+ srr_needed = true;
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ offset = 0;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "READ - DATA lost.\n");
+ /*
+ * For read case we always set the offset to 0
+ * for sequence recovery task.
+ */
+ offset = 0;
+ r_ctl = FC_RCTL_DD_SOL_DATA;
+ }
+ }
+
+ if (srr_needed)
+ qedf_send_srr(orig_io_req, offset, r_ctl);
+ else
+ qedf_initiate_seq_cleanup(orig_io_req, offset, r_ctl);
+ }
+
+out_free_frame:
+ fc_frame_free(fp);
+out_free:
+ /* Put reference for original command since REC completed */
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ kfree(cb_arg);
+}
+
+/* Assumes kref is already held by caller */
+int qedf_send_rec(struct qedf_ioreq *orig_io_req)
+{
+
+ struct fc_els_rec rec;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t sid;
+ uint32_t r_a_tov;
+ int rc;
+
+ if (!orig_io_req) {
+ QEDF_ERR(NULL, "orig_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = orig_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ /* Take reference until REC command completion */
+ kref_get(&orig_io_req->refcount);
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ memset(&rec, 0, sizeof(rec));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "REC\n");
+ rc = -ENOMEM;
+ goto rec_err;
+ }
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ rec.rec_cmd = ELS_REC;
+ hton24(rec.rec_s_id, sid);
+ rec.rec_ox_id = htons(orig_io_req->xid);
+ rec.rec_rx_id =
+ htons(orig_io_req->task->tstorm_st_context.read_write.rx_id);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending REC orig_io=%p, "
+ "orig_xid=0x%x rx_id=0x%x\n", orig_io_req,
+ orig_io_req->xid, rec.rec_rx_id);
+ rc = qedf_initiate_els(fcport, ELS_REC, &rec, sizeof(rec),
+ qedf_rec_compl, cb_arg, r_a_tov);
+
+rec_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "REC failed - release orig_io_req"
+ "=0x%x\n", orig_io_req->xid);
+ kfree(cb_arg);
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ }
+ return rc;
+}
diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c
new file mode 100644
index 0000000..868d423
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_fip.c
@@ -0,0 +1,269 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include "qedf.h"
+
+extern const struct qed_fcoe_ops *qed_ops;
+/*
+ * FIP VLAN functions that will eventually move to libfcoe.
+ */
+
+void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
+{
+ struct sk_buff *skb;
+ char *eth_fr;
+ int fr_len;
+ struct fip_vlan *vlan;
+#define MY_FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
+ static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
+
+ skb = dev_alloc_skb(sizeof(struct fip_vlan));
+ if (!skb)
+ return;
+
+ fr_len = sizeof(*vlan);
+ eth_fr = (char *)skb->data;
+ vlan = (struct fip_vlan *)eth_fr;
+
+ memset(vlan, 0, sizeof(*vlan));
+ ether_addr_copy(vlan->eth.h_source, qedf->mac);
+ ether_addr_copy(vlan->eth.h_dest, my_fcoe_all_fcfs);
+ vlan->eth.h_proto = htons(ETH_P_FIP);
+
+ vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
+ vlan->fip.fip_op = htons(FIP_OP_VLAN);
+ vlan->fip.fip_subcode = FIP_SC_VL_REQ;
+ vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
+
+ vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
+ vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
+ ether_addr_copy(vlan->desc.mac.fd_mac, qedf->mac);
+
+ vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
+ vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
+ put_unaligned_be64(qedf->lport->wwnn, &vlan->desc.wwnn.fd_wwn);
+
+ skb_put(skb, sizeof(*vlan));
+ skb->protocol = htons(ETH_P_FIP);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Sending FIP VLAN "
+ "request.");
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Cannot send vlan request "
+ "because link is not up.\n");
+
+ kfree_skb(skb);
+ return;
+ }
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
+ struct sk_buff *skb)
+{
+ struct fip_header *fiph;
+ struct fip_desc *desc;
+ u16 vid = 0;
+ ssize_t rlen;
+ size_t dlen;
+
+ fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
+
+ rlen = ntohs(fiph->fip_dl_len) * 4;
+ desc = (struct fip_desc *)(fiph + 1);
+ while (rlen > 0) {
+ dlen = desc->fip_dlen * FIP_BPW;
+ switch (desc->fip_dtype) {
+ case FIP_DT_VLAN:
+ vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
+ break;
+ }
+ desc = (struct fip_desc *)((char *)desc + dlen);
+ rlen -= dlen;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
+ "vid=0x%x.\n", vid);
+
+ if (vid > 0 && qedf->vlan_id != vid) {
+ qedf_set_vlan_id(qedf, vid);
+
+ /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
+ complete(&qedf->fipvlan_compl);
+ }
+}
+
+void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+ struct qedf_ctx *qedf = container_of(fip, struct qedf_ctx, ctlr);
+ struct ethhdr *eth_hdr;
+ struct vlan_ethhdr *vlan_hdr;
+ struct fip_header *fiph;
+ u16 op, vlan_tci = 0;
+ u8 sub;
+
+ if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ if (!qedf->vlan_hw_insert) {
+ vlan_hdr = (struct vlan_ethhdr *)skb_push(skb, sizeof(*vlan_hdr)
+ - sizeof(*eth_hdr));
+ memcpy(vlan_hdr, eth_hdr, 2 * ETH_ALEN);
+ vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
+ vlan_hdr->h_vlan_encapsulated_proto = eth_hdr->h_proto;
+ vlan_hdr->h_vlan_TCI = vlan_tci = htons(qedf->vlan_id);
+ }
+
+ /* Update eth_hdr since we added a VLAN tag */
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame send: "
+ "dest=%pM op=%x sub=%x vlan=%04x.", eth_hdr->h_dest, op, sub,
+ ntohs(vlan_tci));
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, false);
+
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+/* Process incoming FIP frames. */
+void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb)
+{
+ struct ethhdr *eth_hdr;
+ struct fip_header *fiph;
+ struct fip_desc *desc;
+ struct fip_mac_desc *mp;
+ struct fip_wwn_desc *wp;
+ struct fip_vn_desc *vp;
+ size_t rlen, dlen;
+ uint32_t cvl_port_id;
+ __u8 cvl_mac[ETH_ALEN];
+ u16 op;
+ u8 sub;
+
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame received: "
+ "skb=%p fiph=%p source=%pM op=%x sub=%x", skb, fiph,
+ eth_hdr->h_source, op, sub);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, false);
+
+ /* Handle FIP VLAN resp in the driver */
+ if (op == FIP_OP_VLAN && sub == FIP_SC_VL_NOTE) {
+ qedf_fcoe_process_vlan_resp(qedf, skb);
+ qedf->vlan_hw_insert = 0;
+ kfree_skb(skb);
+ } else if (op == FIP_OP_CTRL && sub == FIP_SC_CLR_VLINK) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Clear virtual "
+ "link received.\n");
+
+ /* Check that an FCF has been selected by fcoe */
+ if (qedf->ctlr.sel_fcf == NULL) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Dropping CVL since FCF has not been selected "
+ "yet.");
+ return;
+ }
+
+ cvl_port_id = 0;
+ memset(cvl_mac, 0, ETH_ALEN);
+ /*
+ * We need to loop through the CVL descriptors to determine
+ * if we want to reset the fcoe link
+ */
+ rlen = ntohs(fiph->fip_dl_len) * FIP_BPW;
+ desc = (struct fip_desc *)(fiph + 1);
+ while (rlen >= sizeof(*desc)) {
+ dlen = desc->fip_dlen * FIP_BPW;
+ switch (desc->fip_dtype) {
+ case FIP_DT_MAC:
+ mp = (struct fip_mac_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fd_mac=%pM.\n", __func__, mp->fd_mac);
+ ether_addr_copy(cvl_mac, mp->fd_mac);
+ break;
+ case FIP_DT_NAME:
+ wp = (struct fip_wwn_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fc_wwpn=%016llx.\n",
+ get_unaligned_be64(&wp->fd_wwn));
+ break;
+ case FIP_DT_VN_ID:
+ vp = (struct fip_vn_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fd_fc_id=%x.\n", ntoh24(vp->fd_fc_id));
+ cvl_port_id = ntoh24(vp->fd_fc_id);
+ break;
+ default:
+ /* Ignore anything else */
+ break;
+ }
+ desc = (struct fip_desc *)((char *)desc + dlen);
+ rlen -= dlen;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "cvl_port_id=%06x cvl_mac=%pM.\n", cvl_port_id,
+ cvl_mac);
+ if (cvl_port_id == qedf->lport->port_id &&
+ ether_addr_equal(cvl_mac,
+ qedf->ctlr.sel_fcf->fcf_mac)) {
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ qedf_wait_for_upload(qedf);
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ }
+ kfree_skb(skb);
+ } else {
+ /* Everything else is handled by libfcoe */
+ __skb_pull(skb, ETH_HLEN);
+ fcoe_ctlr_recv(&qedf->ctlr, skb);
+ }
+}
+
+void qedf_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Setting data_src_addr=%pM.\n", addr);
+ ether_addr_copy(qedf->data_src_addr, addr);
+}
+
+u8 *qedf_get_src_mac(struct fc_lport *lport)
+{
+ u8 mac[ETH_ALEN];
+ u8 port_id[3];
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ /* We need to use the lport port_id to create the data_src_addr */
+ if (is_zero_ether_addr(qedf->data_src_addr)) {
+ hton24(port_id, lport->port_id);
+ fc_fcoe_set_mac(mac, port_id);
+ qedf->ctlr.update_mac(lport, mac);
+ }
+ return qedf->data_src_addr;
+}
diff --git a/drivers/scsi/qedf/qedf_hsi.h b/drivers/scsi/qedf/qedf_hsi.h
new file mode 100644
index 0000000..dfd65de
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_hsi.h
@@ -0,0 +1,422 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef __QEDF_HSI__
+#define __QEDF_HSI__
+/*
+ * Add include to common target
+ */
+#include <linux/qed/common_hsi.h>
+
+/*
+ * Add include to common storage target
+ */
+#include <linux/qed/storage_common.h>
+
+/*
+ * Add include to common fcoe target for both eCore and protocol driver
+ */
+#include <linux/qed/fcoe_common.h>
+
+
+/*
+ * FCoE CQ element ABTS information
+ */
+struct fcoe_abts_info {
+ u8 r_ctl /* R_CTL in the ABTS response frame */;
+ u8 reserved0;
+ __le16 rx_id;
+ __le32 reserved2[2];
+ __le32 fc_payload[3] /* ABTS FC payload response frame */;
+};
+
+
+/*
+ * FCoE class type
+ */
+enum fcoe_class_type {
+ FCOE_TASK_CLASS_TYPE_3,
+ FCOE_TASK_CLASS_TYPE_2,
+ MAX_FCOE_CLASS_TYPE
+};
+
+
+/*
+ * FCoE CMDQ element control information
+ */
+struct fcoe_cmdqe_control {
+ __le16 conn_id;
+ u8 num_additional_cmdqes;
+ u8 cmdType;
+ /* true for ABTS request cmdqe. used in Target mode */
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_MASK 0x1
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_SHIFT 0
+#define FCOE_CMDQE_CONTROL_RESERVED1_MASK 0x7F
+#define FCOE_CMDQE_CONTROL_RESERVED1_SHIFT 1
+ u8 reserved2[4];
+};
+
+/*
+ * FCoE control + payload CMDQ element
+ */
+struct fcoe_cmdqe {
+ struct fcoe_cmdqe_control hdr;
+ u8 fc_header[24];
+ __le32 fcp_cmd_payload[8];
+};
+
+
+
+/*
+ * FCP RSP flags
+ */
+struct fcoe_fcp_rsp_flags {
+ u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_MASK 0x7
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
+};
+
+/*
+ * FCoE CQ element response information
+ */
+struct fcoe_cqe_rsp_info {
+ struct fcoe_fcp_rsp_flags rsp_flags;
+ u8 scsi_status_code;
+ __le16 retry_delay_timer;
+ __le32 fcp_resid;
+ __le32 fcp_sns_len;
+ __le32 fcp_rsp_len;
+ __le16 rx_id;
+ u8 fw_error_flags;
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_MASK 0x1 /* FW detected underrun */
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_SHIFT 0
+#define FCOE_CQE_RSP_INFO_RESREVED_MASK 0x7F
+#define FCOE_CQE_RSP_INFO_RESREVED_SHIFT 1
+ u8 reserved;
+ __le32 fw_residual /* Residual bytes calculated by FW */;
+};
+
+/*
+ * FCoE CQ element Target completion information
+ */
+struct fcoe_cqe_target_info {
+ __le16 rx_id;
+ __le16 reserved0;
+ __le32 reserved1[5];
+};
+
+/*
+ * FCoE error/warning reporting entry
+ */
+struct fcoe_err_report_entry {
+ __le32 err_warn_bitmap_lo /* Error bitmap lower 32 bits */;
+ __le32 err_warn_bitmap_hi /* Error bitmap higher 32 bits */;
+ /* Buffer offset the beginning of the Sequence last transmitted */
+ __le32 tx_buf_off;
+ /* Buffer offset from the beginning of the Sequence last received */
+ __le32 rx_buf_off;
+ __le16 rx_id /* RX_ID of the associated task */;
+ __le16 reserved1;
+ __le32 reserved2;
+};
+
+/*
+ * FCoE CQ element middle path information
+ */
+struct fcoe_cqe_midpath_info {
+ __le32 data_placement_size;
+ __le16 rx_id;
+ __le16 reserved0;
+ __le32 reserved1[4];
+};
+
+/*
+ * FCoE CQ element unsolicited information
+ */
+struct fcoe_unsolic_info {
+ /* BD information: Physical address and opaque data */
+ struct scsi_bd bd_info;
+ __le16 conn_id /* Connection ID the frame is associated to */;
+ __le16 pkt_len /* Packet length */;
+ u8 reserved1[4];
+};
+
+/*
+ * FCoE warning reporting entry
+ */
+struct fcoe_warning_report_entry {
+ /* BD information: Physical address and opaque data */
+ struct scsi_bd bd_info;
+ /* Buffer offset the beginning of the Sequence last transmitted */
+ __le32 buf_off;
+ __le16 rx_id /* RX_ID of the associated task */;
+ __le16 reserved1;
+};
+
+/*
+ * FCoE CQ element information
+ */
+union fcoe_cqe_info {
+ struct fcoe_cqe_rsp_info rsp_info /* Response completion information */;
+ /* Target completion information */
+ struct fcoe_cqe_target_info target_info;
+ /* Error completion information */
+ struct fcoe_err_report_entry err_info;
+ struct fcoe_abts_info abts_info /* ABTS completion information */;
+ /* Middle path completion information */
+ struct fcoe_cqe_midpath_info midpath_info;
+ /* Unsolicited packet completion information */
+ struct fcoe_unsolic_info unsolic_info;
+ /* Warning completion information (Rec Tov expiration) */
+ struct fcoe_warning_report_entry warn_info;
+};
+
+/*
+ * FCoE CQ element
+ */
+struct fcoe_cqe {
+ __le32 cqe_data;
+ /* The task identifier (OX_ID) to be completed */
+#define FCOE_CQE_TASK_ID_MASK 0xFFFF
+#define FCOE_CQE_TASK_ID_SHIFT 0
+ /*
+ * The CQE type: 0x0 Indicating on a pending work request completion.
+ * 0x1 - Indicating on an unsolicited event notification. use enum
+ * fcoe_cqe_type (use enum fcoe_cqe_type)
+ */
+#define FCOE_CQE_CQE_TYPE_MASK 0xF
+#define FCOE_CQE_CQE_TYPE_SHIFT 16
+#define FCOE_CQE_RESERVED0_MASK 0xFFF
+#define FCOE_CQE_RESERVED0_SHIFT 20
+ __le16 reserved1;
+ __le16 fw_cq_prod;
+ union fcoe_cqe_info cqe_info;
+};
+
+/*
+ * FCoE CQE type
+ */
+enum fcoe_cqe_type {
+ /* solicited response on a R/W or middle-path SQE */
+ FCOE_GOOD_COMPLETION_CQE_TYPE,
+ FCOE_UNSOLIC_CQE_TYPE /* unsolicited packet, RQ consumed */,
+ FCOE_ERROR_DETECTION_CQE_TYPE /* timer expiration, validation error */,
+ FCOE_WARNING_CQE_TYPE /* rec_tov or rr_tov timer expiration */,
+ FCOE_EXCH_CLEANUP_CQE_TYPE /* task cleanup completed */,
+ FCOE_ABTS_CQE_TYPE /* ABTS received and task cleaned */,
+ FCOE_DUMMY_CQE_TYPE /* just increment SQ CONS */,
+ /* Task was completed wight after sending a pkt to the target */
+ FCOE_LOCAL_COMP_CQE_TYPE,
+ MAX_FCOE_CQE_TYPE
+};
+
+
+/*
+ * FCoE device type
+ */
+enum fcoe_device_type {
+ FCOE_TASK_DEV_TYPE_DISK,
+ FCOE_TASK_DEV_TYPE_TAPE,
+ MAX_FCOE_DEVICE_TYPE
+};
+
+
+
+
+/*
+ * FCoE fast path error codes
+ */
+enum fcoe_fp_error_warning_code {
+ FCOE_ERROR_CODE_XFER_OOO_RO /* XFER error codes */,
+ FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED,
+ FCOE_ERROR_CODE_XFER_NULL_BURST_LEN,
+ FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS,
+ FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE,
+ FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE,
+ FCOE_ERROR_CODE_XFER_PEND_XFER_SET,
+ FCOE_ERROR_CODE_XFER_OPENED_SEQ,
+ FCOE_ERROR_CODE_XFER_FCTL,
+ FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET /* FCP RSP error codes */,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE,
+ FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET,
+ FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ,
+ FCOE_ERROR_CODE_FCP_RSP_FCTL,
+ FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET,
+ FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET,
+ FCOE_ERROR_CODE_DATA_OOO_RO /* FCP DATA error codes */,
+ FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE,
+ FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS,
+ FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET,
+ FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET,
+ FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET,
+ FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET,
+ FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ,
+ FCOE_ERROR_CODE_DATA_FCTL_INITIATIR,
+ FCOE_ERROR_CODE_MIDPATH_INVALID_TYPE /* Middle path error codes */,
+ FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET,
+ FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET,
+ FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET,
+ FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET,
+ FCOE_ERROR_CODE_MIDPATH_REPLY_FCTL,
+ FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY,
+ FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL,
+ FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD /* Common error codes */,
+ FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE,
+ FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH,
+ FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT,
+ FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH,
+ FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES,
+ FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR,
+ FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG,
+ FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED,
+ FCOE_ERROR_CODE_COMMON_TASK_DDF_RCTL_INFO_FIELD,
+ FCOE_ERROR_CODE_COMMON_TASK_INVALID_RCTL,
+ FCOE_ERROR_CODE_COMMON_TASK_RCTL_GENERAL_MISMATCH,
+ FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ FCOE_ERROR_CODE_RR_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ /* ABTSrsp pckt arrived unexpected */
+ FCOE_ERROR_CODE_ABTS_REPLY_UNEXPECTED,
+ FCOE_ERROR_CODE_TARGET_MODE_FCP_RSP,
+ FCOE_ERROR_CODE_TARGET_MODE_FCP_XFER,
+ FCOE_ERROR_CODE_TARGET_MODE_DATA_TASK_TYPE_NOT_WRITE,
+ FCOE_ERROR_CODE_DATA_FCTL_TARGET,
+ FCOE_ERROR_CODE_TARGET_DATA_SIZE_NO_MATCH_XFER,
+ FCOE_ERROR_CODE_TARGET_DIF_CRC_CHECKSUM_ERROR,
+ FCOE_ERROR_CODE_TARGET_DIF_REF_TAG_ERROR,
+ FCOE_ERROR_CODE_TARGET_DIF_APP_TAG_ERROR,
+ MAX_FCOE_FP_ERROR_WARNING_CODE
+};
+
+
+/*
+ * FCoE RESPQ element
+ */
+struct fcoe_respqe {
+ __le16 ox_id /* OX_ID that is located in the FCP_RSP FC header */;
+ __le16 rx_id /* RX_ID that is located in the FCP_RSP FC header */;
+ __le32 additional_info;
+/* PARAM that is located in the FCP_RSP FC header */
+#define FCOE_RESPQE_PARAM_MASK 0xFFFFFF
+#define FCOE_RESPQE_PARAM_SHIFT 0
+/* Indication whther its Target-auto-rsp mode or not */
+#define FCOE_RESPQE_TARGET_AUTO_RSP_MASK 0xFF
+#define FCOE_RESPQE_TARGET_AUTO_RSP_SHIFT 24
+};
+
+
+/*
+ * FCoE slow path error codes
+ */
+enum fcoe_sp_error_code {
+ /* Error codes for Error Reporting in slow path flows */
+ FCOE_ERROR_CODE_SLOW_PATH_TOO_MANY_FUNCS,
+ FCOE_ERROR_SLOW_PATH_CODE_NO_LICENSE,
+ MAX_FCOE_SP_ERROR_CODE
+};
+
+
+/*
+ * FCoE SQE request type
+ */
+enum fcoe_sqe_request_type {
+ SEND_FCOE_CMD,
+ SEND_FCOE_MIDPATH,
+ SEND_FCOE_ABTS_REQUEST,
+ FCOE_EXCHANGE_CLEANUP,
+ FCOE_SEQUENCE_RECOVERY,
+ SEND_FCOE_XFER_RDY,
+ SEND_FCOE_RSP,
+ SEND_FCOE_RSP_WITH_SENSE_DATA,
+ SEND_FCOE_TARGET_DATA,
+ SEND_FCOE_INITIATOR_DATA,
+ /*
+ * Xfer Continuation (==1) ready to be sent. Previous XFERs data
+ * received successfully.
+ */
+ SEND_FCOE_XFER_CONTINUATION_RDY,
+ SEND_FCOE_TARGET_ABTS_RSP,
+ MAX_FCOE_SQE_REQUEST_TYPE
+};
+
+
+/*
+ * FCoE task TX state
+ */
+enum fcoe_task_tx_state {
+ /* Initiate state after driver has initialized the task */
+ FCOE_TASK_TX_STATE_NORMAL,
+ /* Updated by TX path after complete transmitting unsolicited packet */
+ FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED,
+ /*
+ * Updated by TX path after start processing the task requesting the
+ * cleanup/abort operation
+ */
+ FCOE_TASK_TX_STATE_CLEAN_REQ,
+ FCOE_TASK_TX_STATE_ABTS /* Updated by TX path during abort procedure */,
+ /* Updated by TX path during exchange cleanup procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP,
+ /*
+ * Updated by TX path during exchange cleanup continuation task
+ * procedure
+ */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_CONT,
+ /* Updated by TX path during exchange cleanup first xfer procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE,
+ /* Updated by TX path during exchange cleanup read task in Target */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_READ_OR_RSP,
+ /* Updated by TX path during target exchange cleanup procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_LAST_CYCLE,
+ /* Updated by TX path during sequence recovery procedure */
+ FCOE_TASK_TX_STATE_SEQRECOVERY,
+ MAX_FCOE_TASK_TX_STATE
+};
+
+
+/*
+ * FCoE task type
+ */
+enum fcoe_task_type {
+ FCOE_TASK_TYPE_WRITE_INITIATOR,
+ FCOE_TASK_TYPE_READ_INITIATOR,
+ FCOE_TASK_TYPE_MIDPATH,
+ FCOE_TASK_TYPE_UNSOLICITED,
+ FCOE_TASK_TYPE_ABTS,
+ FCOE_TASK_TYPE_EXCHANGE_CLEANUP,
+ FCOE_TASK_TYPE_SEQUENCE_CLEANUP,
+ FCOE_TASK_TYPE_WRITE_TARGET,
+ FCOE_TASK_TYPE_READ_TARGET,
+ FCOE_TASK_TYPE_RSP,
+ FCOE_TASK_TYPE_RSP_SENSE_DATA,
+ FCOE_TASK_TYPE_ABTS_TARGET,
+ FCOE_TASK_TYPE_ENUM_SIZE,
+ MAX_FCOE_TASK_TYPE
+};
+
+struct scsi_glbl_queue_entry {
+ /* Start physical address for the RQ (receive queue) PBL. */
+ struct regpair rq_pbl_addr;
+ /* Start physical address for the CQ (completion queue) PBL. */
+ struct regpair cq_pbl_addr;
+ /* Start physical address for the CMDQ (command queue) PBL. */
+ struct regpair cmdq_pbl_addr;
+};
+
+#endif /* __QEDF_HSI__ */
diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
new file mode 100644
index 0000000..486c045
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -0,0 +1,2282 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/spinlock.h>
+#include <linux/vmalloc.h>
+#include "qedf.h"
+#include <scsi/scsi_tcq.h>
+
+void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ unsigned int timer_msec)
+{
+ queue_delayed_work(qedf->timer_work_queue, &io_req->timeout_work,
+ msecs_to_jiffies(timer_msec));
+}
+
+static void qedf_cmd_timeout(struct work_struct *work)
+{
+
+ struct qedf_ioreq *io_req =
+ container_of(work, struct qedf_ioreq, timeout_work.work);
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ struct qedf_rport *fcport = io_req->fcport;
+ u8 op = 0;
+
+ switch (io_req->cmd_type) {
+ case QEDF_ABTS:
+ QEDF_ERR((&qedf->dbg_ctx), "ABTS timeout, xid=0x%x.\n",
+ io_req->xid);
+ /* Cleanup timed out ABTS */
+ qedf_initiate_cleanup(io_req, true);
+ complete(&io_req->abts_done);
+
+ /*
+ * Need to call kref_put for reference taken when initiate_abts
+ * was called since abts_compl won't be called now that we've
+ * cleaned up the task.
+ */
+ kref_put(&io_req->refcount, qedf_release_cmd);
+
+ /*
+ * Now that the original I/O and the ABTS are complete see
+ * if we need to reconnect to the target.
+ */
+ qedf_restart_rport(fcport);
+ break;
+ case QEDF_ELS:
+ kref_get(&io_req->refcount);
+ /*
+ * Don't attempt to clean an ELS timeout as any subseqeunt
+ * ABTS or cleanup requests just hang. For now just free
+ * the resources of the original I/O and the RRQ
+ */
+ QEDF_ERR(&(qedf->dbg_ctx), "ELS timeout, xid=0x%x.\n",
+ io_req->xid);
+ io_req->event = QEDF_IOREQ_EV_ELS_TMO;
+ /* Call callback function to complete command */
+ if (io_req->cb_func && io_req->cb_arg) {
+ op = io_req->cb_arg->op;
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+ qedf_initiate_cleanup(io_req, true);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ break;
+ case QEDF_SEQ_CLEANUP:
+ QEDF_ERR(&(qedf->dbg_ctx), "Sequence cleanup timeout, "
+ "xid=0x%x.\n", io_req->xid);
+ qedf_initiate_cleanup(io_req, true);
+ io_req->event = QEDF_IOREQ_EV_ELS_TMO;
+ qedf_process_seq_cleanup_compl(qedf, NULL, io_req);
+ break;
+ default:
+ break;
+ }
+}
+
+void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr)
+{
+ struct io_bdt *bdt_info;
+ struct qedf_ctx *qedf = cmgr->qedf;
+ size_t bd_tbl_sz;
+ u16 min_xid = QEDF_MIN_XID;
+ u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1);
+ int num_ios;
+ int i;
+ struct qedf_ioreq *io_req;
+
+ num_ios = max_xid - min_xid + 1;
+
+ /* Free fcoe_bdt_ctx structures */
+ if (!cmgr->io_bdt_pool)
+ goto free_cmd_pool;
+
+ bd_tbl_sz = QEDF_MAX_BDS_PER_CMD * sizeof(struct fcoe_sge);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ if (bdt_info->bd_tbl) {
+ dma_free_coherent(&qedf->pdev->dev, bd_tbl_sz,
+ bdt_info->bd_tbl, bdt_info->bd_tbl_dma);
+ bdt_info->bd_tbl = NULL;
+ }
+ }
+
+ /* Destroy io_bdt pool */
+ for (i = 0; i < num_ios; i++) {
+ kfree(cmgr->io_bdt_pool[i]);
+ cmgr->io_bdt_pool[i] = NULL;
+ }
+
+ kfree(cmgr->io_bdt_pool);
+ cmgr->io_bdt_pool = NULL;
+
+free_cmd_pool:
+
+ for (i = 0; i < num_ios; i++) {
+ io_req = &cmgr->cmds[i];
+ /* Make sure we free per command sense buffer */
+ if (io_req->sense_buffer)
+ dma_free_coherent(&qedf->pdev->dev,
+ QEDF_SCSI_SENSE_BUFFERSIZE, io_req->sense_buffer,
+ io_req->sense_buffer_dma);
+ cancel_delayed_work_sync(&io_req->rrq_work);
+ }
+
+ /* Free command manager itself */
+ vfree(cmgr);
+}
+
+static void qedf_handle_rrq(struct work_struct *work)
+{
+ struct qedf_ioreq *io_req =
+ container_of(work, struct qedf_ioreq, rrq_work.work);
+
+ qedf_send_rrq(io_req);
+
+}
+
+struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf)
+{
+ struct qedf_cmd_mgr *cmgr;
+ struct io_bdt *bdt_info;
+ struct qedf_ioreq *io_req;
+ u16 xid;
+ int i;
+ int num_ios;
+ u16 min_xid = QEDF_MIN_XID;
+ u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1);
+
+ /* Make sure num_queues is already set before calling this function */
+ if (!qedf->num_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "num_queues is not set.\n");
+ return NULL;
+ }
+
+ if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Invalid min_xid 0x%x and "
+ "max_xid 0x%x.\n", min_xid, max_xid);
+ return NULL;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "min xid 0x%x, max xid "
+ "0x%x.\n", min_xid, max_xid);
+
+ num_ios = max_xid - min_xid + 1;
+
+ cmgr = vzalloc(sizeof(struct qedf_cmd_mgr));
+ if (!cmgr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc cmd mgr.\n");
+ return NULL;
+ }
+
+ cmgr->qedf = qedf;
+ spin_lock_init(&cmgr->lock);
+
+ /*
+ * Initialize list of qedf_ioreq.
+ */
+ xid = QEDF_MIN_XID;
+
+ for (i = 0; i < num_ios; i++) {
+ io_req = &cmgr->cmds[i];
+ INIT_DELAYED_WORK(&io_req->timeout_work, qedf_cmd_timeout);
+
+ io_req->xid = xid++;
+
+ INIT_DELAYED_WORK(&io_req->rrq_work, qedf_handle_rrq);
+
+ /* Allocate DMA memory to hold sense buffer */
+ io_req->sense_buffer = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_SCSI_SENSE_BUFFERSIZE, &io_req->sense_buffer_dma,
+ GFP_KERNEL);
+ if (!io_req->sense_buffer)
+ goto mem_err;
+ }
+
+ /* Allocate pool of io_bdts - one for each qedf_ioreq */
+ cmgr->io_bdt_pool = kmalloc_array(num_ios, sizeof(struct io_bdt *),
+ GFP_KERNEL);
+
+ if (!cmgr->io_bdt_pool) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc io_bdt_pool.\n");
+ goto mem_err;
+ }
+
+ for (i = 0; i < num_ios; i++) {
+ cmgr->io_bdt_pool[i] = kmalloc(sizeof(struct io_bdt),
+ GFP_KERNEL);
+ if (!cmgr->io_bdt_pool[i]) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc "
+ "io_bdt_pool[%d].\n", i);
+ goto mem_err;
+ }
+ }
+
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ bdt_info->bd_tbl = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_MAX_BDS_PER_CMD * sizeof(struct fcoe_sge),
+ &bdt_info->bd_tbl_dma, GFP_KERNEL);
+ if (!bdt_info->bd_tbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc "
+ "bdt_tbl[%d].\n", i);
+ goto mem_err;
+ }
+ }
+ atomic_set(&cmgr->free_list_cnt, num_ios);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "cmgr->free_list_cnt=%d.\n",
+ atomic_read(&cmgr->free_list_cnt));
+
+ return cmgr;
+
+mem_err:
+ qedf_cmd_mgr_free(cmgr);
+ return NULL;
+}
+
+struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport, u8 cmd_type)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct qedf_cmd_mgr *cmd_mgr = qedf->cmd_mgr;
+ struct qedf_ioreq *io_req = NULL;
+ struct io_bdt *bd_tbl;
+ u16 xid;
+ uint32_t free_sqes;
+ int i;
+ unsigned long flags;
+
+ free_sqes = atomic_read(&fcport->free_sqes);
+
+ if (!free_sqes) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, free_sqes=%d.\n ",
+ free_sqes);
+ goto out_failed;
+ }
+
+ /* Limit the number of outstanding R/W tasks */
+ if ((atomic_read(&fcport->num_active_ios) >=
+ NUM_RW_TASKS_PER_CONNECTION)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, num_active_ios=%d.\n",
+ atomic_read(&fcport->num_active_ios));
+ goto out_failed;
+ }
+
+ /* Limit global TIDs certain tasks */
+ if (atomic_read(&cmd_mgr->free_list_cnt) <= GBL_RSVD_TASKS) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, free_list_cnt=%d.\n",
+ atomic_read(&cmd_mgr->free_list_cnt));
+ goto out_failed;
+ }
+
+ spin_lock_irqsave(&cmd_mgr->lock, flags);
+ for (i = 0; i < FCOE_PARAMS_NUM_TASKS; i++) {
+ io_req = &cmd_mgr->cmds[cmd_mgr->idx];
+ cmd_mgr->idx++;
+ if (cmd_mgr->idx == FCOE_PARAMS_NUM_TASKS)
+ cmd_mgr->idx = 0;
+
+ /* Check to make sure command was previously freed */
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags))
+ break;
+ }
+
+ if (i == FCOE_PARAMS_NUM_TASKS) {
+ spin_unlock_irqrestore(&cmd_mgr->lock, flags);
+ goto out_failed;
+ }
+
+ set_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
+ spin_unlock_irqrestore(&cmd_mgr->lock, flags);
+
+ atomic_inc(&fcport->num_active_ios);
+ atomic_dec(&fcport->free_sqes);
+ xid = io_req->xid;
+ atomic_dec(&cmd_mgr->free_list_cnt);
+
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->fcport = fcport;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ if (bd_tbl == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bd_tbl is NULL, xid=%x.\n", xid);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ goto out_failed;
+ }
+ bd_tbl->io_req = io_req;
+ io_req->cmd_type = cmd_type;
+
+ /* Reset sequence offset data */
+ io_req->rx_buf_off = 0;
+ io_req->tx_buf_off = 0;
+ io_req->rx_id = 0xffff; /* No OX_ID */
+
+ return io_req;
+
+out_failed:
+ /* Record failure for stats and return NULL to caller */
+ qedf->alloc_failures++;
+ return NULL;
+}
+
+static void qedf_free_mp_resc(struct qedf_ioreq *io_req)
+{
+ struct qedf_mp_req *mp_req = &(io_req->mp_req);
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ uint64_t sz = sizeof(struct fcoe_sge);
+
+ /* clear tm flags */
+ mp_req->tm_flags = 0;
+ if (mp_req->mp_req_bd) {
+ dma_free_coherent(&qedf->pdev->dev, sz,
+ mp_req->mp_req_bd, mp_req->mp_req_bd_dma);
+ mp_req->mp_req_bd = NULL;
+ }
+ if (mp_req->mp_resp_bd) {
+ dma_free_coherent(&qedf->pdev->dev, sz,
+ mp_req->mp_resp_bd, mp_req->mp_resp_bd_dma);
+ mp_req->mp_resp_bd = NULL;
+ }
+ if (mp_req->req_buf) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ mp_req->req_buf, mp_req->req_buf_dma);
+ mp_req->req_buf = NULL;
+ }
+ if (mp_req->resp_buf) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ mp_req->resp_buf, mp_req->resp_buf_dma);
+ mp_req->resp_buf = NULL;
+ }
+}
+
+void qedf_release_cmd(struct kref *ref)
+{
+ struct qedf_ioreq *io_req =
+ container_of(ref, struct qedf_ioreq, refcount);
+ struct qedf_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+ struct qedf_rport *fcport = io_req->fcport;
+
+ if (io_req->cmd_type == QEDF_ELS ||
+ io_req->cmd_type == QEDF_TASK_MGMT_CMD)
+ qedf_free_mp_resc(io_req);
+
+ atomic_inc(&cmd_mgr->free_list_cnt);
+ atomic_dec(&fcport->num_active_ios);
+ if (atomic_read(&fcport->num_active_ios) < 0)
+ QEDF_WARN(&(fcport->qedf->dbg_ctx), "active_ios < 0.\n");
+
+ /* Increment task retry identifier now that the request is released */
+ io_req->task_retry_identifier++;
+
+ clear_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
+}
+
+static int qedf_split_bd(struct qedf_ioreq *io_req, u64 addr, int sg_len,
+ int bd_index)
+{
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ int frag_size, sg_frags;
+
+ sg_frags = 0;
+ while (sg_len) {
+ if (sg_len > QEDF_BD_SPLIT_SZ)
+ frag_size = QEDF_BD_SPLIT_SZ;
+ else
+ frag_size = sg_len;
+ bd[bd_index + sg_frags].sge_addr.lo = U64_LO(addr);
+ bd[bd_index + sg_frags].sge_addr.hi = U64_HI(addr);
+ bd[bd_index + sg_frags].size = (uint16_t)frag_size;
+
+ addr += (u64)frag_size;
+ sg_frags++;
+ sg_len -= frag_size;
+ }
+ return sg_frags;
+}
+
+static int qedf_map_sg(struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct Scsi_Host *host = sc->device->host;
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ struct scatterlist *sg;
+ int byte_count = 0;
+ int sg_count = 0;
+ int bd_count = 0;
+ int sg_frags;
+ unsigned int sg_len;
+ u64 addr, end_addr;
+ int i;
+
+ sg_count = dma_map_sg(&qedf->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+
+ sg = scsi_sglist(sc);
+
+ /*
+ * New condition to send single SGE as cached-SGL with length less
+ * than 64k.
+ */
+ if ((sg_count == 1) && (sg_dma_len(sg) <=
+ QEDF_MAX_SGLEN_FOR_CACHESGL)) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+
+ bd[bd_count].sge_addr.lo = (addr & 0xffffffff);
+ bd[bd_count].sge_addr.hi = (addr >> 32);
+ bd[bd_count].size = (u16)sg_len;
+
+ return ++bd_count;
+ }
+
+ scsi_for_each_sg(sc, sg, sg_count, i) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+ end_addr = (u64)(addr + sg_len);
+
+ /*
+ * First s/g element in the list so check if the end_addr
+ * is paged aligned. Also check to make sure the length is
+ * at least page size.
+ */
+ if ((i == 0) && (sg_count > 1) &&
+ ((end_addr % QEDF_PAGE_SIZE) ||
+ sg_len < QEDF_PAGE_SIZE))
+ io_req->use_slowpath = true;
+ /*
+ * Last s/g element so check if the start address is paged
+ * aligned.
+ */
+ else if ((i == (sg_count - 1)) && (sg_count > 1) &&
+ (addr % QEDF_PAGE_SIZE))
+ io_req->use_slowpath = true;
+ /*
+ * Intermediate s/g element so check if start and end address
+ * is page aligned.
+ */
+ else if ((i != 0) && (i != (sg_count - 1)) &&
+ ((addr % QEDF_PAGE_SIZE) || (end_addr % QEDF_PAGE_SIZE)))
+ io_req->use_slowpath = true;
+
+ if (sg_len > QEDF_MAX_BD_LEN) {
+ sg_frags = qedf_split_bd(io_req, addr, sg_len,
+ bd_count);
+ } else {
+ sg_frags = 1;
+ bd[bd_count].sge_addr.lo = U64_LO(addr);
+ bd[bd_count].sge_addr.hi = U64_HI(addr);
+ bd[bd_count].size = (uint16_t)sg_len;
+ }
+
+ bd_count += sg_frags;
+ byte_count += sg_len;
+ }
+
+ if (byte_count != scsi_bufflen(sc))
+ QEDF_ERR(&(qedf->dbg_ctx), "byte_count = %d != "
+ "scsi_bufflen = %d, task_id = 0x%x.\n", byte_count,
+ scsi_bufflen(sc), io_req->xid);
+
+ return bd_count;
+}
+
+static int qedf_build_bd_list_from_sg(struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ int bd_count;
+
+ if (scsi_sg_count(sc)) {
+ bd_count = qedf_map_sg(io_req);
+ if (bd_count == 0)
+ return -ENOMEM;
+ } else {
+ bd_count = 0;
+ bd[0].sge_addr.lo = bd[0].sge_addr.hi = 0;
+ bd[0].size = 0;
+ }
+ io_req->bd_tbl->bd_valid = bd_count;
+
+ return 0;
+}
+
+static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req,
+ struct fcp_cmnd *fcp_cmnd)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+
+ /* fcp_cmnd is 32 bytes */
+ memset(fcp_cmnd, 0, FCP_CMND_LEN);
+
+ /* 8 bytes: SCSI LUN info */
+ int_to_scsilun(sc_cmd->device->lun,
+ (struct scsi_lun *)&fcp_cmnd->fc_lun);
+
+ /* 4 bytes: flag info */
+ fcp_cmnd->fc_pri_ta = 0;
+ fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
+ fcp_cmnd->fc_flags = io_req->io_req_flags;
+ fcp_cmnd->fc_cmdref = 0;
+
+ /* Populate data direction */
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ fcp_cmnd->fc_flags |= FCP_CFL_WRDATA;
+ else if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE)
+ fcp_cmnd->fc_flags |= FCP_CFL_RDDATA;
+
+ fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
+
+ /* 16 bytes: CDB information */
+ memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
+
+ /* 4 bytes: FCP data length */
+ fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
+
+}
+
+static void qedf_init_task(struct qedf_rport *fcport, struct fc_lport *lport,
+ struct qedf_ioreq *io_req, u32 *ptu_invalidate,
+ struct fcoe_task_context *task_ctx)
+{
+ enum fcoe_task_type task_type;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct io_bdt *bd_tbl = io_req->bd_tbl;
+ union fcoe_data_desc_ctx *data_desc;
+ u32 *fcp_cmnd;
+ u32 tmp_fcp_cmnd[8];
+ int cnt, i;
+ int bd_count;
+ struct qedf_ctx *qedf = fcport->qedf;
+ uint16_t cq_idx = smp_processor_id() % qedf->num_queues;
+ u8 tmp_sgl_mode = 0;
+ u8 mst_sgl_mode = 0;
+
+ memset(task_ctx, 0, sizeof(struct fcoe_task_context));
+ io_req->task = task_ctx;
+
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ task_type = FCOE_TASK_TYPE_WRITE_INITIATOR;
+ else
+ task_type = FCOE_TASK_TYPE_READ_INITIATOR;
+
+ /* Y Storm context */
+ task_ctx->ystorm_st_context.expect_first_xfer = 1;
+ task_ctx->ystorm_st_context.data_2_trns_rem = io_req->data_xfer_len;
+ /* Check if this is required */
+ task_ctx->ystorm_st_context.ox_id = io_req->xid;
+ task_ctx->ystorm_st_context.task_rety_identifier =
+ io_req->task_retry_identifier;
+
+ /* T Storm ag context */
+ SET_FIELD(task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, PROTOCOLID_FCOE);
+ task_ctx->tstorm_ag_context.icid = (u16)fcport->fw_cid;
+
+ /* T Storm st context */
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME,
+ 1);
+ task_ctx->tstorm_st_context.read_write.rx_id = 0xffff;
+
+ task_ctx->tstorm_st_context.read_only.dev_type =
+ FCOE_TASK_DEV_TYPE_DISK;
+ task_ctx->tstorm_st_context.read_only.conf_supported = 0;
+ task_ctx->tstorm_st_context.read_only.cid = fcport->fw_cid;
+
+ /* Completion queue for response. */
+ task_ctx->tstorm_st_context.read_only.glbl_q_num = cq_idx;
+ task_ctx->tstorm_st_context.read_only.fcp_cmd_trns_size =
+ io_req->data_xfer_len;
+ task_ctx->tstorm_st_context.read_write.e_d_tov_exp_timeout_val =
+ lport->e_d_tov;
+
+ task_ctx->ustorm_ag_context.global_cq_num = cq_idx;
+ io_req->fp_idx = cq_idx;
+
+ bd_count = bd_tbl->bd_valid;
+ if (task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) {
+ /* Setup WRITE task */
+ struct fcoe_sge *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ task_ctx->ystorm_st_context.task_type =
+ FCOE_TASK_TYPE_WRITE_INITIATOR;
+ data_desc = &task_ctx->ystorm_st_context.data_desc;
+
+ if (io_req->use_slowpath) {
+ SET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
+ FCOE_SLOW_SGL);
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->slow.remainder_num_sges = bd_count;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+ } else {
+ SET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
+ (bd_count <= 4) ? (enum fcoe_sgl_mode)bd_count :
+ FCOE_MUL_FAST_SGES);
+
+ if (bd_count == 1) {
+ data_desc->single_sge.sge_addr.lo =
+ fcoe_bd_tbl->sge_addr.lo;
+ data_desc->single_sge.sge_addr.hi =
+ fcoe_bd_tbl->sge_addr.hi;
+ data_desc->single_sge.size =
+ fcoe_bd_tbl->size;
+ data_desc->single_sge.is_valid_sge = 0;
+ qedf->single_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SINGLE_SGE;
+ } else {
+ data_desc->fast.sgl_start_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_start_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_byte_offset =
+ data_desc->fast.sgl_start_addr.lo &
+ (QEDF_PAGE_SIZE - 1);
+ if (data_desc->fast.sgl_byte_offset > 0)
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "byte_offset=%u for xid=0x%x.\n",
+ io_req->xid,
+ data_desc->fast.sgl_byte_offset);
+ data_desc->fast.task_reuse_cnt =
+ io_req->reuse_count;
+ io_req->reuse_count++;
+ if (io_req->reuse_count == QEDF_MAX_REUSE) {
+ *ptu_invalidate = 1;
+ io_req->reuse_count = 0;
+ }
+ qedf->fast_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_FAST_SGE;
+ }
+ }
+
+ /* T Storm context */
+ task_ctx->tstorm_st_context.read_only.task_type =
+ FCOE_TASK_TYPE_WRITE_INITIATOR;
+
+ /* M Storm context */
+ tmp_sgl_mode = GET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE);
+ SET_FIELD(task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE,
+ tmp_sgl_mode);
+
+ } else {
+ /* Setup READ task */
+
+ /* M Storm context */
+ struct fcoe_sge *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ data_desc = &task_ctx->mstorm_st_context.fp.data_desc;
+ task_ctx->mstorm_st_context.fp.data_2_trns_rem =
+ io_req->data_xfer_len;
+
+ if (io_req->use_slowpath) {
+ SET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE,
+ FCOE_SLOW_SGL);
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->slow.remainder_num_sges =
+ bd_count;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+ } else {
+ SET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE,
+ (bd_count <= 4) ? (enum fcoe_sgl_mode)bd_count :
+ FCOE_MUL_FAST_SGES);
+
+ if (bd_count == 1) {
+ data_desc->single_sge.sge_addr.lo =
+ fcoe_bd_tbl->sge_addr.lo;
+ data_desc->single_sge.sge_addr.hi =
+ fcoe_bd_tbl->sge_addr.hi;
+ data_desc->single_sge.size =
+ fcoe_bd_tbl->size;
+ data_desc->single_sge.is_valid_sge = 0;
+ qedf->single_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SINGLE_SGE;
+ } else {
+ data_desc->fast.sgl_start_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_start_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_byte_offset = 0;
+ data_desc->fast.task_reuse_cnt =
+ io_req->reuse_count;
+ io_req->reuse_count++;
+ if (io_req->reuse_count == QEDF_MAX_REUSE) {
+ *ptu_invalidate = 1;
+ io_req->reuse_count = 0;
+ }
+ qedf->fast_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_FAST_SGE;
+ }
+ }
+
+ /* Y Storm context */
+ task_ctx->ystorm_st_context.expect_first_xfer = 0;
+ task_ctx->ystorm_st_context.task_type =
+ FCOE_TASK_TYPE_READ_INITIATOR;
+
+ /* T Storm context */
+ task_ctx->tstorm_st_context.read_only.task_type =
+ FCOE_TASK_TYPE_READ_INITIATOR;
+ mst_sgl_mode = GET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE);
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE,
+ mst_sgl_mode);
+ }
+
+ /* fill FCP_CMND IU */
+ fcp_cmnd = (u32 *)task_ctx->ystorm_st_context.tx_info_union.fcp_cmd_payload.opaque;
+ qedf_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
+
+ /* Swap fcp_cmnd since FC is big endian */
+ cnt = sizeof(struct fcp_cmnd) / sizeof(u32);
+
+ for (i = 0; i < cnt; i++) {
+ *fcp_cmnd = cpu_to_be32(tmp_fcp_cmnd[i]);
+ fcp_cmnd++;
+ }
+
+ /* M Storm context - Sense buffer */
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.lo =
+ U64_LO(io_req->sense_buffer_dma);
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.hi =
+ U64_HI(io_req->sense_buffer_dma);
+}
+
+void qedf_init_mp_task(struct qedf_ioreq *io_req,
+ struct fcoe_task_context *task_ctx)
+{
+ struct qedf_mp_req *mp_req = &(io_req->mp_req);
+ struct qedf_rport *fcport = io_req->fcport;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ struct fc_frame_header *fc_hdr;
+ enum fcoe_task_type task_type = 0;
+ union fcoe_data_desc_ctx *data_desc;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Initializing MP task "
+ "for cmd_type = %d\n", io_req->cmd_type);
+
+ qedf->control_requests++;
+
+ /* Obtain task_type */
+ if ((io_req->cmd_type == QEDF_TASK_MGMT_CMD) ||
+ (io_req->cmd_type == QEDF_ELS)) {
+ task_type = FCOE_TASK_TYPE_MIDPATH;
+ } else if (io_req->cmd_type == QEDF_ABTS) {
+ task_type = FCOE_TASK_TYPE_ABTS;
+ }
+
+ memset(task_ctx, 0, sizeof(struct fcoe_task_context));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task_ctx;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "task type = %d\n",
+ task_type);
+
+ /* YSTORM only */
+ {
+ /* Initialize YSTORM task context */
+ struct fcoe_tx_mid_path_params *task_fc_hdr =
+ &task_ctx->ystorm_st_context.tx_info_union.tx_params.mid_path;
+ memset(task_fc_hdr, 0, sizeof(struct fcoe_tx_mid_path_params));
+ task_ctx->ystorm_st_context.task_rety_identifier =
+ io_req->task_retry_identifier;
+
+ /* Init SGL parameters */
+ if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
+ (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
+ data_desc = &task_ctx->ystorm_st_context.data_desc;
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(mp_req->mp_req_bd_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(mp_req->mp_req_bd_dma);
+ data_desc->slow.remainder_num_sges = 1;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ }
+
+ fc_hdr = &(mp_req->req_fc_hdr);
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ fc_hdr->fh_ox_id = io_req->xid;
+ fc_hdr->fh_rx_id = htons(0xffff);
+ } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
+ fc_hdr->fh_rx_id = io_req->xid;
+ }
+
+ /* Fill FC Header into middle path buffer */
+ task_fc_hdr->parameter = fc_hdr->fh_parm_offset;
+ task_fc_hdr->r_ctl = fc_hdr->fh_r_ctl;
+ task_fc_hdr->type = fc_hdr->fh_type;
+ task_fc_hdr->cs_ctl = fc_hdr->fh_cs_ctl;
+ task_fc_hdr->df_ctl = fc_hdr->fh_df_ctl;
+ task_fc_hdr->rx_id = fc_hdr->fh_rx_id;
+ task_fc_hdr->ox_id = fc_hdr->fh_ox_id;
+
+ task_ctx->ystorm_st_context.data_2_trns_rem =
+ io_req->data_xfer_len;
+ task_ctx->ystorm_st_context.task_type = task_type;
+ }
+
+ /* TSTORM ONLY */
+ {
+ task_ctx->tstorm_ag_context.icid = (u16)fcport->fw_cid;
+ task_ctx->tstorm_st_context.read_only.cid = fcport->fw_cid;
+ /* Always send middle-path repsonses on CQ #0 */
+ task_ctx->tstorm_st_context.read_only.glbl_q_num = 0;
+ io_req->fp_idx = 0;
+ SET_FIELD(task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE,
+ PROTOCOLID_FCOE);
+ task_ctx->tstorm_st_context.read_only.task_type = task_type;
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME,
+ 1);
+ task_ctx->tstorm_st_context.read_write.rx_id = 0xffff;
+ }
+
+ /* MSTORM only */
+ {
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ /* Initialize task context */
+ data_desc = &task_ctx->mstorm_st_context.fp.data_desc;
+
+ /* Set cache sges address and length */
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(mp_req->mp_resp_bd_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(mp_req->mp_resp_bd_dma);
+ data_desc->slow.remainder_num_sges = 1;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+
+ /*
+ * Also need to fil in non-fastpath response address
+ * for middle path commands.
+ */
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.lo =
+ U64_LO(mp_req->mp_resp_bd_dma);
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.hi =
+ U64_HI(mp_req->mp_resp_bd_dma);
+ }
+ }
+
+ /* USTORM ONLY */
+ {
+ task_ctx->ustorm_ag_context.global_cq_num = 0;
+ }
+
+ /* I/O stats. Middle path commands always use slow SGEs */
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+}
+
+void qedf_add_to_sq(struct qedf_rport *fcport, u16 xid, u32 ptu_invalidate,
+ enum fcoe_task_type req_type, u32 offset)
+{
+ struct fcoe_wqe *sqe;
+ uint16_t total_sqe = (fcport->sq_mem_size)/(sizeof(struct fcoe_wqe));
+
+ sqe = &fcport->sq[fcport->sq_prod_idx];
+
+ fcport->sq_prod_idx++;
+ fcport->fw_sq_prod_idx++;
+ if (fcport->sq_prod_idx == total_sqe)
+ fcport->sq_prod_idx = 0;
+
+ switch (req_type) {
+ case FCOE_TASK_TYPE_WRITE_INITIATOR:
+ case FCOE_TASK_TYPE_READ_INITIATOR:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE, SEND_FCOE_CMD);
+ if (ptu_invalidate)
+ SET_FIELD(sqe->flags, FCOE_WQE_INVALIDATE_PTU, 1);
+ break;
+ case FCOE_TASK_TYPE_MIDPATH:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE, SEND_FCOE_MIDPATH);
+ break;
+ case FCOE_TASK_TYPE_ABTS:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ SEND_FCOE_ABTS_REQUEST);
+ break;
+ case FCOE_TASK_TYPE_EXCHANGE_CLEANUP:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ FCOE_EXCHANGE_CLEANUP);
+ break;
+ case FCOE_TASK_TYPE_SEQUENCE_CLEANUP:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ FCOE_SEQUENCE_RECOVERY);
+ /* NOTE: offset param only used for sequence recovery */
+ sqe->additional_info_union.seq_rec_updated_offset = offset;
+ break;
+ case FCOE_TASK_TYPE_UNSOLICITED:
+ break;
+ default:
+ break;
+ }
+
+ sqe->task_id = xid;
+
+ /* Make sure SQ data is coherent */
+ wmb();
+
+}
+
+void qedf_ring_doorbell(struct qedf_rport *fcport)
+{
+ struct fcoe_db_data dbell = { 0 };
+
+ dbell.agg_flags = 0;
+
+ dbell.params |= DB_DEST_XCM << FCOE_DB_DATA_DEST_SHIFT;
+ dbell.params |= DB_AGG_CMD_SET << FCOE_DB_DATA_AGG_CMD_SHIFT;
+ dbell.params |= DQ_XCM_FCOE_SQ_PROD_CMD <<
+ FCOE_DB_DATA_AGG_VAL_SEL_SHIFT;
+
+ dbell.sq_prod = fcport->fw_sq_prod_idx;
+ writel(*(u32 *)&dbell, fcport->p_doorbell);
+ /* Make sure SQ index is updated so f/w prcesses requests in order */
+ wmb();
+ mmiowb();
+}
+
+static void qedf_trace_io(struct qedf_rport *fcport, struct qedf_ioreq *io_req,
+ int8_t direction)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct qedf_io_log *io_log;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ unsigned long flags;
+ uint8_t op;
+
+ spin_lock_irqsave(&qedf->io_trace_lock, flags);
+
+ io_log = &qedf->io_trace_buf[qedf->io_trace_idx];
+ io_log->direction = direction;
+ io_log->task_id = io_req->xid;
+ io_log->port_id = fcport->rdata->ids.port_id;
+ io_log->lun = sc_cmd->device->lun;
+ io_log->op = op = sc_cmd->cmnd[0];
+ io_log->lba[0] = sc_cmd->cmnd[2];
+ io_log->lba[1] = sc_cmd->cmnd[3];
+ io_log->lba[2] = sc_cmd->cmnd[4];
+ io_log->lba[3] = sc_cmd->cmnd[5];
+ io_log->bufflen = scsi_bufflen(sc_cmd);
+ io_log->sg_count = scsi_sg_count(sc_cmd);
+ io_log->result = sc_cmd->result;
+ io_log->jiffies = jiffies;
+ io_log->refcount = atomic_read(&io_req->refcount.refcount);
+
+ if (direction == QEDF_IO_TRACE_REQ) {
+ /* For requests we only care abot the submission CPU */
+ io_log->req_cpu = io_req->cpu;
+ io_log->int_cpu = 0;
+ io_log->rsp_cpu = 0;
+ } else if (direction == QEDF_IO_TRACE_RSP) {
+ io_log->req_cpu = io_req->cpu;
+ io_log->int_cpu = io_req->int_cpu;
+ io_log->rsp_cpu = smp_processor_id();
+ }
+
+ io_log->sge_type = io_req->sge_type;
+
+ qedf->io_trace_idx++;
+ if (qedf->io_trace_idx == QEDF_IO_TRACE_SIZE)
+ qedf->io_trace_idx = 0;
+
+ spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
+}
+
+int qedf_post_io_req(struct qedf_rport *fcport, struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct Scsi_Host *host = sc_cmd->device->host;
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fcoe_task_context *task_ctx;
+ u16 xid;
+ enum fcoe_task_type req_type = 0;
+ u32 ptu_invalidate = 0;
+
+ /* Initialize rest of io_req fileds */
+ io_req->data_xfer_len = scsi_bufflen(sc_cmd);
+ sc_cmd->SCp.ptr = (char *)io_req;
+ io_req->use_slowpath = false; /* Assume fast SGL by default */
+
+ /* Record which cpu this request is associated with */
+ io_req->cpu = smp_processor_id();
+
+ if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ req_type = FCOE_TASK_TYPE_READ_INITIATOR;
+ io_req->io_req_flags = QEDF_READ;
+ qedf->input_requests++;
+ } else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ req_type = FCOE_TASK_TYPE_WRITE_INITIATOR;
+ io_req->io_req_flags = QEDF_WRITE;
+ qedf->output_requests++;
+ } else {
+ io_req->io_req_flags = 0;
+ qedf->control_requests++;
+ }
+
+ xid = io_req->xid;
+
+ /* Build buffer descriptor list for firmware from sg list */
+ if (qedf_build_bd_list_from_sg(io_req)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "BD list creation failed.\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ return -EAGAIN;
+ }
+
+ /* Get the task context */
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ if (!task_ctx) {
+ QEDF_WARN(&(qedf->dbg_ctx), "task_ctx is NULL, xid=%d.\n",
+ xid);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ return -EINVAL;
+ }
+
+ qedf_init_task(fcport, lport, io_req, &ptu_invalidate, task_ctx);
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ }
+
+ /* Obtain free SQ entry */
+ qedf_add_to_sq(fcport, xid, ptu_invalidate, req_type, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+
+ if (qedf_io_tracing && io_req->sc_cmd)
+ qedf_trace_io(fcport, io_req, QEDF_IO_TRACE_REQ);
+
+ return false;
+}
+
+int
+qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport = rport->dd_data;
+ struct qedf_ioreq *io_req;
+ int rc = 0;
+ int rval;
+ unsigned long flags = 0;
+
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags) ||
+ test_bit(QEDF_DBG_STOP_IO, &qedf->flags)) {
+ sc_cmd->result = DID_NO_CONNECT << 16;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ rval = fc_remote_port_chkready(rport);
+ if (rval) {
+ sc_cmd->result = rval;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ /* Retry command if we are doing a qed drain operation */
+ if (test_bit(QEDF_DRAIN_ACTIVE, &qedf->flags)) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ if (lport->state != LPORT_ST_READY ||
+ atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ fcport = (struct qedf_rport *)&rp[1];
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ /*
+ * Session is not offloaded yet. Let SCSI-ml retry
+ * the command.
+ */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ if (fcport->retry_delay_timestamp) {
+ if (time_after(jiffies, fcport->retry_delay_timestamp)) {
+ fcport->retry_delay_timestamp = 0;
+ } else {
+ /* If retry_delay timer is active, flow off the ML */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ }
+
+ io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
+ if (!io_req) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ io_req->sc_cmd = sc_cmd;
+
+ /* Take fcport->rport_lock for posting to fcport send queue */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ if (qedf_post_io_req(fcport, io_req)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Unable to post io_req\n");
+ /* Return SQE to pool */
+ atomic_inc(&fcport->free_sqes);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ }
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+exit_qcmd:
+ return rc;
+}
+
+static void qedf_parse_fcp_rsp(struct qedf_ioreq *io_req,
+ struct fcoe_cqe_rsp_info *fcp_rsp)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ u8 rsp_flags = fcp_rsp->rsp_flags.flags;
+ int fcp_sns_len = 0;
+ int fcp_rsp_len = 0;
+ uint8_t *rsp_info, *sense_data;
+
+ io_req->fcp_status = FC_GOOD;
+ io_req->fcp_resid = 0;
+ if (rsp_flags & (FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER |
+ FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER))
+ io_req->fcp_resid = fcp_rsp->fcp_resid;
+
+ io_req->scsi_comp_flags = rsp_flags;
+ CMD_SCSI_STATUS(sc_cmd) = io_req->cdb_status =
+ fcp_rsp->scsi_status_code;
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID)
+ fcp_rsp_len = fcp_rsp->fcp_rsp_len;
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID)
+ fcp_sns_len = fcp_rsp->fcp_sns_len;
+
+ io_req->fcp_rsp_len = fcp_rsp_len;
+ io_req->fcp_sns_len = fcp_sns_len;
+ rsp_info = sense_data = io_req->sense_buffer;
+
+ /* fetch fcp_rsp_code */
+ if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
+ /* Only for task management function */
+ io_req->fcp_rsp_code = rsp_info[3];
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "fcp_rsp_code = %d\n", io_req->fcp_rsp_code);
+ /* Adjust sense-data location. */
+ sense_data += fcp_rsp_len;
+ }
+
+ if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Truncating sense buffer\n");
+ fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
+ }
+
+ memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ if (fcp_sns_len)
+ memcpy(sc_cmd->sense_buffer, sense_data,
+ fcp_sns_len);
+}
+
+static void qedf_unmap_sg_list(struct qedf_ctx *qedf, struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+
+ if (io_req->bd_tbl->bd_valid && sc && scsi_sg_count(sc)) {
+ dma_unmap_sg(&qedf->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+ io_req->bd_tbl->bd_valid = 0;
+ }
+}
+
+void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ u16 xid, rval;
+ struct fcoe_task_context *task_ctx;
+ struct scsi_cmnd *sc_cmd;
+ struct fcoe_cqe_rsp_info *fcp_rsp;
+ struct qedf_rport *fcport;
+ int refcount;
+ u16 scope, qualifier = 0;
+ u8 fw_residual_flag = 0;
+
+ if (!io_req)
+ return;
+ if (!cqe)
+ return;
+
+ xid = io_req->xid;
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ sc_cmd = io_req->sc_cmd;
+ fcp_rsp = &cqe->cqe_info.rsp_info;
+
+ if (!sc_cmd) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd is NULL!\n");
+ return;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "SCp.ptr is NULL, returned in "
+ "another context.\n");
+ return;
+ }
+
+ if (!sc_cmd->request) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd->request is NULL, "
+ "sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ if (!sc_cmd->request->special) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request->special is NULL so "
+ "request not valid, sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ if (!sc_cmd->request->q) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request->q is NULL so request "
+ "is not valid, sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ fcport = io_req->fcport;
+
+ qedf_parse_fcp_rsp(io_req, fcp_rsp);
+
+ qedf_unmap_sg_list(qedf, io_req);
+
+ /* Check for FCP transport error */
+ if (io_req->fcp_rsp_len > 3 && io_req->fcp_rsp_code) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "FCP I/O protocol failure xid=0x%x fcp_rsp_len=%d "
+ "fcp_rsp_code=%d.\n", io_req->xid, io_req->fcp_rsp_len,
+ io_req->fcp_rsp_code);
+ sc_cmd->result = DID_BUS_BUSY << 16;
+ goto out;
+ }
+
+ fw_residual_flag = GET_FIELD(cqe->cqe_info.rsp_info.fw_error_flags,
+ FCOE_CQE_RSP_INFO_FW_UNDERRUN);
+ if (fw_residual_flag) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Firmware detected underrun: xid=0x%x fcp_rsp.flags=0x%02x "
+ "fcp_resid=%d fw_residual=0x%x.\n", io_req->xid,
+ fcp_rsp->rsp_flags.flags, io_req->fcp_resid,
+ cqe->cqe_info.rsp_info.fw_residual);
+
+ if (io_req->cdb_status == 0)
+ sc_cmd->result = (DID_ERROR << 16) | io_req->cdb_status;
+ else
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ /* Abort the command since we did not get all the data */
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+ sc_cmd->result = (DID_ERROR << 16) | io_req->cdb_status;
+ }
+
+ /*
+ * Set resid to the whole buffer length so we won't try to resue
+ * any previously data.
+ */
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+ goto out;
+ }
+
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good I/O completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ refcount = atomic_read(&io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "%d:0:%d:%d xid=0x%0x op=0x%02x "
+ "lba=%02x%02x%02x%02x cdb_status=%d "
+ "fcp_resid=0x%x refcount=%d.\n",
+ qedf->lport->host->host_no, sc_cmd->device->id,
+ sc_cmd->device->lun, io_req->xid,
+ sc_cmd->cmnd[0], sc_cmd->cmnd[2], sc_cmd->cmnd[3],
+ sc_cmd->cmnd[4], sc_cmd->cmnd[5],
+ io_req->cdb_status, io_req->fcp_resid,
+ refcount);
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL ||
+ io_req->cdb_status == SAM_STAT_BUSY) {
+ /*
+ * Check whether we need to set retry_delay at
+ * all based on retry_delay module parameter
+ * and the status qualifier.
+ */
+
+ /* Upper 2 bits */
+ scope = fcp_rsp->retry_delay_timer & 0xC000;
+ /* Lower 14 bits */
+ qualifier = fcp_rsp->retry_delay_timer & 0x3FFF;
+
+ if (qedf_retry_delay &&
+ scope > 0 && qualifier > 0 &&
+ qualifier <= 0x3FEF) {
+ /* Check we don't go over the max */
+ if (qualifier > QEDF_RETRY_DELAY_MAX)
+ qualifier =
+ QEDF_RETRY_DELAY_MAX;
+ fcport->retry_delay_timestamp =
+ jiffies + (qualifier * HZ / 10);
+ }
+ }
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+ default:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "fcp_status=%d.\n",
+ io_req->fcp_status);
+ break;
+ }
+
+out:
+ if (qedf_io_tracing)
+ qedf_trace_io(fcport, io_req, QEDF_IO_TRACE_RSP);
+
+ io_req->sc_cmd = NULL;
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+/* Return a SCSI command in some other context besides a normal completion */
+void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ int result)
+{
+ u16 xid;
+ struct scsi_cmnd *sc_cmd;
+ int refcount;
+
+ if (!io_req)
+ return;
+
+ xid = io_req->xid;
+ sc_cmd = io_req->sc_cmd;
+
+ if (!sc_cmd) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd is NULL!\n");
+ return;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "SCp.ptr is NULL, returned in "
+ "another context.\n");
+ return;
+ }
+
+ qedf_unmap_sg_list(qedf, io_req);
+
+ sc_cmd->result = result << 16;
+ refcount = atomic_read(&io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "%d:0:%d:%d: Completing "
+ "sc_cmd=%p result=0x%08x op=0x%02x lba=0x%02x%02x%02x%02x, "
+ "allowed=%d retries=%d refcount=%d.\n",
+ qedf->lport->host->host_no, sc_cmd->device->id,
+ sc_cmd->device->lun, sc_cmd, sc_cmd->result, sc_cmd->cmnd[0],
+ sc_cmd->cmnd[2], sc_cmd->cmnd[3], sc_cmd->cmnd[4],
+ sc_cmd->cmnd[5], sc_cmd->allowed, sc_cmd->retries,
+ refcount);
+
+ /*
+ * Set resid to the whole buffer length so we won't try to resue any
+ * previously read data
+ */
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+
+ if (qedf_io_tracing)
+ qedf_trace_io(io_req->fcport, io_req, QEDF_IO_TRACE_RSP);
+
+ io_req->sc_cmd = NULL;
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+/*
+ * Handle warning type CQE completions. This is mainly used for REC timer
+ * popping.
+ */
+void qedf_process_warning_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ int rval, i;
+ struct qedf_rport *fcport = io_req->fcport;
+ u64 err_warn_bit_map;
+ u8 err_warn = 0xff;
+
+ if (!cqe)
+ return;
+
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "Warning CQE, "
+ "xid=0x%x\n", io_req->xid);
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx),
+ "err_warn_bitmap=%08x:%08x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_hi),
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_lo));
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "tx_buff_off=%08x, "
+ "rx_buff_off=%08x, rx_id=%04x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.tx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_id));
+
+ /* Normalize the error bitmap value to an just an unsigned int */
+ err_warn_bit_map = (u64)
+ ((u64)cqe->cqe_info.err_info.err_warn_bitmap_hi << 32) |
+ (u64)cqe->cqe_info.err_info.err_warn_bitmap_lo;
+ for (i = 0; i < 64; i++) {
+ if (err_warn_bit_map & (u64)((u64)1 << i)) {
+ err_warn = i;
+ break;
+ }
+ }
+
+ /* Check if REC TOV expired if this is a tape device */
+ if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
+ if (err_warn ==
+ FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION) {
+ QEDF_ERR(&(qedf->dbg_ctx), "REC timer expired.\n");
+ if (!test_bit(QEDF_CMD_SRR_SENT, &io_req->flags)) {
+ io_req->rx_buf_off =
+ cqe->cqe_info.err_info.rx_buf_off;
+ io_req->tx_buf_off =
+ cqe->cqe_info.err_info.tx_buf_off;
+ io_req->rx_id = cqe->cqe_info.err_info.rx_id;
+ rval = qedf_send_rec(io_req);
+ /*
+ * We only want to abort the io_req if we
+ * can't queue the REC command as we want to
+ * keep the exchange open for recovery.
+ */
+ if (rval)
+ goto send_abort;
+ }
+ return;
+ }
+ }
+
+send_abort:
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval)
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+}
+
+/* Cleanup a command when we receive an error detection completion */
+void qedf_process_error_detect(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ int rval;
+
+ if (!cqe)
+ return;
+
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "Error detection CQE, "
+ "xid=0x%x\n", io_req->xid);
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx),
+ "err_warn_bitmap=%08x:%08x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_hi),
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_lo));
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "tx_buff_off=%08x, "
+ "rx_buff_off=%08x, rx_id=%04x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.tx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_id));
+
+ if (qedf->stop_io_on_error) {
+ qedf_stop_all_io(qedf);
+ return;
+ }
+
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval)
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+}
+
+static void qedf_flush_els_req(struct qedf_ctx *qedf,
+ struct qedf_ioreq *els_req)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Flushing ELS request xid=0x%x refcount=%d.\n", els_req->xid,
+ atomic_read(&els_req->refcount.refcount));
+
+ /*
+ * Need to distinguish this from a timeout when calling the
+ * els_req->cb_func.
+ */
+ els_req->event = QEDF_IOREQ_EV_ELS_FLUSH;
+
+ /* Cancel the timer */
+ cancel_delayed_work_sync(&els_req->timeout_work);
+
+ /* Call callback function to complete command */
+ if (els_req->cb_func && els_req->cb_arg) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ /* Release kref for original initiate_els */
+ kref_put(&els_req->refcount, qedf_release_cmd);
+}
+
+/* A value of -1 for lun is a wild card that means flush all
+ * active SCSI I/Os for the target.
+ */
+void qedf_flush_active_ios(struct qedf_rport *fcport, int lun)
+{
+ struct qedf_ioreq *io_req;
+ struct qedf_ctx *qedf;
+ struct qedf_cmd_mgr *cmd_mgr;
+ int i, rc;
+
+ if (!fcport)
+ return;
+
+ qedf = fcport->qedf;
+ cmd_mgr = qedf->cmd_mgr;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Flush active i/o's.\n");
+
+ for (i = 0; i < FCOE_PARAMS_NUM_TASKS; i++) {
+ io_req = &cmd_mgr->cmds[i];
+
+ if (!io_req)
+ continue;
+ if (io_req->fcport != fcport)
+ continue;
+ if (io_req->cmd_type == QEDF_ELS) {
+ rc = kref_get_unless_zero(&io_req->refcount);
+ if (!rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Could not get kref for io_req=0x%p.\n",
+ io_req);
+ continue;
+ }
+ qedf_flush_els_req(qedf, io_req);
+ /*
+ * Release the kref and go back to the top of the
+ * loop.
+ */
+ goto free_cmd;
+ }
+
+ if (!io_req->sc_cmd)
+ continue;
+ if (lun > 0) {
+ if (io_req->sc_cmd->device->lun !=
+ (u64)lun)
+ continue;
+ }
+
+ /*
+ * Use kref_get_unless_zero in the unlikely case the command
+ * we're about to flush was completed in the normal SCSI path
+ */
+ rc = kref_get_unless_zero(&io_req->refcount);
+ if (!rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not get kref for "
+ "io_req=0x%p\n", io_req);
+ continue;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Cleanup xid=0x%x.\n", io_req->xid);
+
+ /* Cleanup task and return I/O mid-layer */
+ qedf_initiate_cleanup(io_req, true);
+
+free_cmd:
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ }
+}
+
+/*
+ * Initiate a ABTS middle path command. Note that we don't have to initialize
+ * the task context for an ABTS task.
+ */
+int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
+{
+ struct fc_lport *lport;
+ struct qedf_rport *fcport = io_req->fcport;
+ struct fc_rport_priv *rdata = fcport->rdata;
+ struct qedf_ctx *qedf = fcport->qedf;
+ u16 xid;
+ u32 r_a_tov = 0;
+ int rc = 0;
+ unsigned long flags;
+
+ r_a_tov = rdata->r_a_tov;
+ lport = qedf->lport;
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "tgt not offloaded\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link_down_tmo active.\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ /* Ensure room on SQ */
+ if (!atomic_read(&fcport->free_sqes)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+
+ kref_get(&io_req->refcount);
+
+ xid = io_req->xid;
+ qedf->control_requests++;
+ qedf->packet_aborts++;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ /* Set the command type to abort */
+ io_req->cmd_type = QEDF_ABTS;
+ io_req->return_scsi_cmd_on_abts = return_scsi_cmd_on_abts;
+
+ set_bit(QEDF_CMD_IN_ABORT, &io_req->flags);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "ABTS io_req xid = "
+ "0x%x\n", xid);
+
+ qedf_cmd_timer_set(qedf, io_req, QEDF_ABORT_TIMEOUT * HZ);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ /* Add ABTS to send queue */
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_ABTS, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ return rc;
+abts_err:
+ /*
+ * If the ABTS task fails to queue then we need to cleanup the
+ * task at the firmware.
+ */
+ qedf_initiate_cleanup(io_req, return_scsi_cmd_on_abts);
+ return rc;
+}
+
+void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ uint32_t r_ctl;
+ uint16_t xid;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "Entered with xid = "
+ "0x%x cmd_type = %d\n", io_req->xid, io_req->cmd_type);
+
+ cancel_delayed_work(&io_req->timeout_work);
+
+ xid = io_req->xid;
+ r_ctl = cqe->cqe_info.abts_info.r_ctl;
+
+ switch (r_ctl) {
+ case FC_RCTL_BA_ACC:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "ABTS response - ACC Send RRQ after R_A_TOV\n");
+ io_req->event = QEDF_IOREQ_EV_ABORT_SUCCESS;
+ /*
+ * Dont release this cmd yet. It will be relesed
+ * after we get RRQ response
+ */
+ kref_get(&io_req->refcount);
+ queue_delayed_work(qedf->dpc_wq, &io_req->rrq_work,
+ msecs_to_jiffies(qedf->lport->r_a_tov));
+ break;
+ /* For error cases let the cleanup return the command */
+ case FC_RCTL_BA_RJT:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "ABTS response - RJT\n");
+ io_req->event = QEDF_IOREQ_EV_ABORT_FAILED;
+ break;
+ default:
+ QEDF_ERR(&(qedf->dbg_ctx), "Unknown ABTS response\n");
+ break;
+ }
+
+ clear_bit(QEDF_CMD_IN_ABORT, &io_req->flags);
+
+ if (io_req->sc_cmd) {
+ if (io_req->return_scsi_cmd_on_abts)
+ qedf_scsi_done(qedf, io_req, DID_ERROR);
+ }
+
+ /* Notify eh_abort handler that ABTS is complete */
+ complete(&io_req->abts_done);
+
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+int qedf_init_mp_req(struct qedf_ioreq *io_req)
+{
+ struct qedf_mp_req *mp_req;
+ struct fcoe_sge *mp_req_bd;
+ struct fcoe_sge *mp_resp_bd;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ dma_addr_t addr;
+ uint64_t sz;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_MP_REQ, "Entered.\n");
+
+ mp_req = (struct qedf_mp_req *)&(io_req->mp_req);
+ memset(mp_req, 0, sizeof(struct qedf_mp_req));
+
+ if (io_req->cmd_type != QEDF_ELS) {
+ mp_req->req_len = sizeof(struct fcp_cmnd);
+ io_req->data_xfer_len = mp_req->req_len;
+ } else
+ mp_req->req_len = io_req->data_xfer_len;
+
+ mp_req->req_buf = dma_alloc_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ &mp_req->req_buf_dma, GFP_KERNEL);
+ if (!mp_req->req_buf) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP req buffer\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ mp_req->resp_buf = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_PAGE_SIZE, &mp_req->resp_buf_dma, GFP_KERNEL);
+ if (!mp_req->resp_buf) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc TM resp "
+ "buffer\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ /* Allocate and map mp_req_bd and mp_resp_bd */
+ sz = sizeof(struct fcoe_sge);
+ mp_req->mp_req_bd = dma_alloc_coherent(&qedf->pdev->dev, sz,
+ &mp_req->mp_req_bd_dma, GFP_KERNEL);
+ if (!mp_req->mp_req_bd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP req bd\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ mp_req->mp_resp_bd = dma_alloc_coherent(&qedf->pdev->dev, sz,
+ &mp_req->mp_resp_bd_dma, GFP_KERNEL);
+ if (!mp_req->mp_resp_bd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP resp bd\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ /* Fill bd table */
+ addr = mp_req->req_buf_dma;
+ mp_req_bd = mp_req->mp_req_bd;
+ mp_req_bd->sge_addr.lo = U64_LO(addr);
+ mp_req_bd->sge_addr.hi = U64_HI(addr);
+ mp_req_bd->size = QEDF_PAGE_SIZE;
+
+ /*
+ * MP buffer is either a task mgmt command or an ELS.
+ * So the assumption is that it consumes a single bd
+ * entry in the bd table
+ */
+ mp_resp_bd = mp_req->mp_resp_bd;
+ addr = mp_req->resp_buf_dma;
+ mp_resp_bd->sge_addr.lo = U64_LO(addr);
+ mp_resp_bd->sge_addr.hi = U64_HI(addr);
+ mp_resp_bd->size = QEDF_PAGE_SIZE;
+
+ return 0;
+}
+
+/*
+ * Last ditch effort to clear the port if it's stuck. Used only after a
+ * cleanup task times out.
+ */
+static void qedf_drain_request(struct qedf_ctx *qedf)
+{
+ if (test_bit(QEDF_DRAIN_ACTIVE, &qedf->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "MCP drain already active.\n");
+ return;
+ }
+
+ /* Set bit to return all queuecommand requests as busy */
+ set_bit(QEDF_DRAIN_ACTIVE, &qedf->flags);
+
+ /* Call qed drain request for function. Should be synchronous */
+ qed_ops->common->drain(qedf->cdev);
+
+ /* Settle time for CQEs to be returned */
+ msleep(100);
+
+ /* Unplug and continue */
+ clear_bit(QEDF_DRAIN_ACTIVE, &qedf->flags);
+}
+
+/*
+ * Returns SUCCESS if the cleanup task does not timeout, otherwise return
+ * FAILURE.
+ */
+int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts)
+{
+ struct qedf_rport *fcport;
+ struct qedf_ctx *qedf;
+ uint16_t xid;
+ struct fcoe_task_context *task;
+ int tmo = 0;
+ int rc = SUCCESS;
+ unsigned long flags;
+
+ fcport = io_req->fcport;
+ if (!fcport) {
+ QEDF_ERR(NULL, "fcport is NULL.\n");
+ return SUCCESS;
+ }
+
+ qedf = fcport->qedf;
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL.\n");
+ return SUCCESS;
+ }
+
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in "
+ "cleanup processing or already completed.\n",
+ io_req->xid);
+ return SUCCESS;
+ }
+
+ /* Ensure room on SQ */
+ if (!atomic_read(&fcport->free_sqes)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
+ return FAILED;
+ }
+
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Entered xid=0x%x\n",
+ io_req->xid);
+
+ /* Cleanup cmds re-use the same TID as the original I/O */
+ xid = io_req->xid;
+ io_req->cmd_type = QEDF_CLEANUP;
+ io_req->return_scsi_cmd_on_abts = return_scsi_cmd_on_abts;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ set_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+
+ init_completion(&io_req->tm_done);
+
+ /* Obtain free SQ entry */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_EXCHANGE_CLEANUP, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ tmo = wait_for_completion_timeout(&io_req->tm_done,
+ QEDF_CLEANUP_TIMEOUT * HZ);
+
+ if (!tmo) {
+ rc = FAILED;
+ /* Timeout case */
+ QEDF_ERR(&(qedf->dbg_ctx), "Cleanup command timeout, "
+ "xid=%x.\n", io_req->xid);
+ clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+ /* Issue a drain request if cleanup task times out */
+ QEDF_ERR(&(qedf->dbg_ctx), "Issuing MCP drain request.\n");
+ qedf_drain_request(qedf);
+ }
+
+ if (io_req->sc_cmd) {
+ if (io_req->return_scsi_cmd_on_abts)
+ qedf_scsi_done(qedf, io_req, DID_ERROR);
+ }
+
+ if (rc == SUCCESS)
+ io_req->event = QEDF_IOREQ_EV_CLEANUP_SUCCESS;
+ else
+ io_req->event = QEDF_IOREQ_EV_CLEANUP_FAILED;
+
+ return rc;
+}
+
+void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Entered xid = 0x%x\n",
+ io_req->xid);
+
+ clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+
+ /* Complete so we can finish cleaning up the I/O */
+ complete(&io_req->tm_done);
+}
+
+static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
+ uint8_t tm_flags)
+{
+ struct qedf_ioreq *io_req;
+ struct qedf_mp_req *tm_req;
+ struct fcoe_task_context *task;
+ struct fc_frame_header *fc_hdr;
+ struct fcp_cmnd *fcp_cmnd;
+ struct qedf_ctx *qedf = fcport->qedf;
+ int rc = 0;
+ uint16_t xid;
+ uint32_t sid, did;
+ int tmo = 0;
+ unsigned long flags;
+
+ if (!sc_cmd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "invalid arg\n");
+ return FAILED;
+ }
+
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fcport not offloaded\n");
+ rc = FAILED;
+ return FAILED;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "portid = 0x%x "
+ "tm_flags = %d\n", fcport->rdata->ids.port_id, tm_flags);
+
+ io_req = qedf_alloc_cmd(fcport, QEDF_TASK_MGMT_CMD);
+ if (!io_req) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed TMF");
+ rc = -EAGAIN;
+ goto reset_tmf_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ io_req->sc_cmd = sc_cmd;
+ io_req->fcport = fcport;
+ io_req->cmd_type = QEDF_TASK_MGMT_CMD;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ tm_req = (struct qedf_mp_req *)&(io_req->mp_req);
+
+ rc = qedf_init_mp_req(io_req);
+ if (rc == FAILED) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Task mgmt MP request init "
+ "failed\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ goto reset_tmf_err;
+ }
+
+ /* Set TM flags */
+ io_req->io_req_flags = 0;
+ tm_req->tm_flags = tm_flags;
+
+ /* Default is to return a SCSI command when an error occurs */
+ io_req->return_scsi_cmd_on_abts = true;
+
+ /* Fill FCP_CMND */
+ qedf_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
+ fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
+ memset(fcp_cmnd->fc_cdb, 0, FCP_CMND_LEN);
+ fcp_cmnd->fc_dl = 0;
+
+ /* Fill FC header */
+ fc_hdr = &(tm_req->req_fc_hdr);
+ sid = fcport->sid;
+ did = fcport->rdata->ids.port_id;
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, sid, did,
+ FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+ /* Obtain exchange id */
+ xid = io_req->xid;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "TMF io_req xid = "
+ "0x%x\n", xid);
+
+ /* Initialize task context for this IO request */
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+ qedf_init_mp_task(io_req, task);
+
+ init_completion(&io_req->tm_done);
+
+ /* Obtain free SQ entry */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_MIDPATH, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ tmo = wait_for_completion_timeout(&io_req->tm_done,
+ QEDF_TM_TIMEOUT * HZ);
+
+ if (!tmo) {
+ rc = FAILED;
+ QEDF_ERR(&(qedf->dbg_ctx), "wait for tm_cmpl timeout!\n");
+ } else {
+ /* Check TMF response code */
+ if (io_req->fcp_rsp_code == 0)
+ rc = SUCCESS;
+ else
+ rc = FAILED;
+ }
+
+ if (tm_flags == FCP_TMF_LUN_RESET)
+ qedf_flush_active_ios(fcport, (int)sc_cmd->device->lun);
+ else
+ qedf_flush_active_ios(fcport, -1);
+
+ kref_put(&io_req->refcount, qedf_release_cmd);
+
+ if (rc != SUCCESS) {
+ QEDF_ERR(&(qedf->dbg_ctx), "task mgmt command failed...\n");
+ rc = FAILED;
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "task mgmt command success...\n");
+ rc = SUCCESS;
+ }
+reset_tmf_err:
+ return rc;
+}
+
+int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport = (struct qedf_rport *)&rp[1];
+ struct qedf_ctx *qedf;
+ struct fc_lport *lport;
+ int rc = SUCCESS;
+ int rval;
+
+ rval = fc_remote_port_chkready(rport);
+
+ if (rval) {
+ QEDF_ERR(NULL, "device_reset rport not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ if (fcport == NULL) {
+ QEDF_ERR(NULL, "device_reset: rport is NULL\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags) ||
+ test_bit(QEDF_DBG_STOP_IO, &qedf->flags)) {
+ rc = SUCCESS;
+ goto tmf_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ rc = qedf_execute_tmf(fcport, sc_cmd, tm_flags);
+
+tmf_err:
+ return rc;
+}
+
+void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ struct fcoe_cqe_rsp_info *fcp_rsp;
+ struct fcoe_cqe_midpath_info *mp_info;
+
+
+ /* Get TMF response length from CQE */
+ mp_info = &cqe->cqe_info.midpath_info;
+ io_req->mp_req.resp_len = mp_info->data_placement_size;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "Response len is %d.\n", io_req->mp_req.resp_len);
+
+ fcp_rsp = &cqe->cqe_info.rsp_info;
+ qedf_parse_fcp_rsp(io_req, fcp_rsp);
+
+ io_req->sc_cmd = NULL;
+ complete(&io_req->tm_done);
+}
+
+void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
+ struct fcoe_cqe *cqe)
+{
+ unsigned long flags;
+ uint16_t tmp;
+ uint16_t pktlen = cqe->cqe_info.unsolic_info.pkt_len;
+ u32 payload_len, crc;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ struct qedf_io_work *io_work;
+ u32 bdq_idx;
+ void *bdq_addr;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "address.hi=%x address.lo=%x opaque_data.hi=%x "
+ "opaque_data.lo=%x bdq_prod_idx=%u len=%u.\n",
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.address.hi),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.address.lo),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.hi),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.lo),
+ qedf->bdq_prod_idx, pktlen);
+
+ bdq_idx = le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.lo);
+ if (bdq_idx >= QEDF_BDQ_SIZE) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bdq_idx is out of range %d.\n",
+ bdq_idx);
+ goto increment_prod;
+ }
+
+ bdq_addr = qedf->bdq[bdq_idx].buf_addr;
+ if (!bdq_addr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bdq_addr is NULL, dropping "
+ "unsolicited packet.\n");
+ goto increment_prod;
+ }
+
+ if (qedf_dump_frames) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "BDQ frame is at addr=%p.\n", bdq_addr);
+ print_hex_dump(KERN_WARNING, "bdq ", DUMP_PREFIX_OFFSET, 16, 1,
+ (void *)bdq_addr, pktlen, false);
+ }
+
+ /* Allocate frame */
+ payload_len = pktlen - sizeof(struct fc_frame_header);
+ fp = fc_frame_alloc(qedf->lport, payload_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate fp.\n");
+ goto increment_prod;
+ }
+
+ /* Copy data from BDQ buffer into fc_frame struct */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, (void *)bdq_addr, pktlen);
+
+ /* Initialize the frame so libfc sees it as a valid frame */
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = qedf->lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+
+ /*
+ * We need to return the frame back up to libfc in a non-atomic
+ * context
+ */
+ io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
+ if (!io_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "work for I/O completion.\n");
+ fc_frame_free(fp);
+ goto increment_prod;
+ }
+ memset(io_work, 0, sizeof(struct qedf_io_work));
+
+ INIT_WORK(&io_work->work, qedf_fp_io_handler);
+
+ /* Copy contents of CQE for deferred processing */
+ memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
+
+ io_work->qedf = qedf;
+ io_work->fp = fp;
+
+ queue_work_on(smp_processor_id(), qedf_io_wq, &io_work->work);
+increment_prod:
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+
+ /* Increment producer to let f/w know we've handled the frame */
+ qedf->bdq_prod_idx++;
+
+ /* Producer index wraps at uint16_t boundary */
+ if (qedf->bdq_prod_idx == 0xffff)
+ qedf->bdq_prod_idx = 0;
+
+ writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
+ tmp = readw(qedf->bdq_primary_prod);
+ writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
+ tmp = readw(qedf->bdq_secondary_prod);
+
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+}
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
new file mode 100644
index 0000000..d9d7a86
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -0,0 +1,3336 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/highmem.h>
+#include <linux/crc32.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/kthread.h>
+#include <scsi/libfc.h>
+#include <scsi/scsi_host.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/cpu.h>
+#include "qedf.h"
+
+const struct qed_fcoe_ops *qed_ops;
+
+static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id);
+static void qedf_remove(struct pci_dev *pdev);
+
+extern struct qedf_debugfs_ops qedf_debugfs_ops;
+extern struct file_operations qedf_dbg_fops;
+
+/*
+ * Driver module parameters.
+ */
+static unsigned int qedf_dev_loss_tmo = 60;
+module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
+ "remote ports (default 60)");
+
+uint qedf_debug = QEDF_LOG_INFO;
+module_param_named(debug, qedf_debug, uint, S_IRUGO);
+MODULE_PARM_DESC(qedf_debug, " Debug mask. Pass '1' to enable default debugging"
+ " mask");
+
+static uint qedf_fipvlan_retries = 30;
+module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
+MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
+ "before giving up (default 30)");
+
+static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
+module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
+MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
+ "(default 1002).");
+
+static uint qedf_default_prio = QEDF_DEFAULT_PRIO;
+module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
+MODULE_PARM_DESC(default_prio, " Default 802.1q priority for FIP and FCoE"
+ " traffic (default 3).");
+
+uint qedf_dump_frames;
+module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
+ "(default off)");
+
+static uint qedf_queue_depth;
+module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
+MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
+ "by the qedf driver. Default is 0 (use OS default).");
+
+uint qedf_io_tracing;
+module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
+ "into trace buffer. (default off).");
+
+static uint qedf_max_lun = MAX_FIBRE_LUNS;
+module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
+MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
+ "supports. (default 0xffffffff)");
+
+uint qedf_link_down_tmo;
+module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
+ "link is down by N seconds.");
+
+bool qedf_retry_delay;
+module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
+ "delay handling (default off).");
+
+static uint qedf_dp_module;
+module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
+MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
+ "qed module during probe.");
+
+static uint qedf_dp_level;
+module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
+MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
+ "during probe (0-3: 0 more verbose).");
+
+struct workqueue_struct *qedf_io_wq;
+
+static struct fcoe_percpu_s qedf_global;
+static DEFINE_SPINLOCK(qedf_global_lock);
+
+static struct kmem_cache *qedf_io_work_cache;
+
+void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
+{
+ qedf->vlan_id = vlan_id;
+ qedf->vlan_id |= qedf_default_prio << VLAN_PRIO_SHIFT;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Setting vlan_id=%04x "
+ "prio=%d.\n", vlan_id, qedf_default_prio);
+}
+
+/* Returns true if we have a valid vlan, false otherwise */
+static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
+{
+ int rc;
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Link not up.\n");
+ return false;
+ }
+
+ while (qedf->fipvlan_retries--) {
+ if (qedf->vlan_id > 0)
+ return true;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Retry %d.\n", qedf->fipvlan_retries);
+ init_completion(&qedf->fipvlan_compl);
+ qedf_fcoe_send_vlan_req(qedf);
+ rc = wait_for_completion_timeout(&qedf->fipvlan_compl,
+ 1 * HZ);
+ if (rc > 0) {
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void qedf_handle_link_update(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, link_update.work);
+ int rc;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Entered.\n");
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+ rc = qedf_initiate_fipvlan_req(qedf);
+ if (rc)
+ return;
+ /*
+ * If we get here then we never received a repsonse to our
+ * fip vlan request so set the vlan_id to the default and
+ * tell FCoE that the link is up
+ */
+ QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
+ "response, falling back to default VLAN %d.\n",
+ qedf_fallback_vlan);
+ qedf_set_vlan_id(qedf, QEDF_FALLBACK_VLAN);
+
+ /*
+ * Zero out data_src_addr so we'll update it with the new
+ * lport port_id
+ */
+ eth_zero_addr(qedf->data_src_addr);
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
+ /*
+ * If we hit here and link_down_tmo_valid is still 1 it means
+ * that link_down_tmo timed out so set it to 0 to make sure any
+ * other readers have accurate state.
+ */
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Calling fcoe_ctlr_link_down().\n");
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ qedf_wait_for_upload(qedf);
+ /* Reset the number of FIP VLAN retries */
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+ }
+}
+
+static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL.\n");
+ return;
+ }
+
+ /*
+ * If ERR_PTR is set then don't try to stat anything as it will cause
+ * a crash when we access fp.
+ */
+ if (IS_ERR(fp)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "fp has IS_ERR() set.\n");
+ goto skip_stat;
+ }
+
+ /* Log stats for FLOGI reject */
+ if (fc_frame_payload_op(fp) == ELS_LS_RJT)
+ qedf->flogi_failed++;
+
+ /* Complete flogi_compl so we can proceed to sending ADISCs */
+ complete(&qedf->flogi_compl);
+
+skip_stat:
+ /* Report response to libfc */
+ fc_lport_flogi_resp(seq, fp, lport);
+}
+
+static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ /*
+ * Intercept FLOGI for statistic purposes. Note we use the resp
+ * callback to tell if this is really a flogi.
+ */
+ if (resp == fc_lport_flogi_resp) {
+ qedf->flogi_cnt++;
+ return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
+ arg, timeout);
+ }
+
+ return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}
+
+int qedf_send_flogi(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport;
+ struct fc_frame *fp;
+
+ lport = qedf->lport;
+
+ if (!lport->tt.elsct_send)
+ return -EINVAL;
+
+ fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
+ return -ENOMEM;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Sending FLOGI to reestablish session with switch.\n");
+ lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
+ ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
+
+ init_completion(&qedf->flogi_compl);
+
+ return 0;
+}
+
+struct qedf_tmp_rdata_item {
+ struct fc_rport_priv *rdata;
+ struct list_head list;
+};
+
+/*
+ * This function is called if link_down_tmo is in use. If we get a link up and
+ * link_down_tmo has not expired then use just FLOGI/ADISC to recover our
+ * sessions with targets. Otherwise, just call fcoe_ctlr_link_up().
+ */
+static void qedf_link_recovery(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, link_recovery.work);
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+ struct qedf_tmp_rdata_item *rdata_item, *tmp_rdata_item;
+ bool rc;
+ int retries = 30;
+ int rval, i;
+ struct list_head rdata_login_list;
+
+ INIT_LIST_HEAD(&rdata_login_list);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Link down tmo did not expire.\n");
+
+ /*
+ * Essentially reset the fcoe_ctlr here without affecting the state
+ * of the libfc structs.
+ */
+ qedf->ctlr.state = FIP_ST_LINK_WAIT;
+ fcoe_ctlr_link_down(&qedf->ctlr);
+
+ /*
+ * Bring the link up before we send the fipvlan request so libfcoe
+ * can select a new fcf in parallel
+ */
+ fcoe_ctlr_link_up(&qedf->ctlr);
+
+ /* Since the link when down and up to verify which vlan we're on */
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+ rc = qedf_initiate_fipvlan_req(qedf);
+ if (!rc)
+ return;
+
+ /*
+ * We need to wait for an FCF to be selected due to the
+ * fcoe_ctlr_link_up other the FLOGI will be rejected.
+ */
+ while (retries > 0) {
+ if (qedf->ctlr.sel_fcf) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "FCF reselected, proceeding with FLOGI.\n");
+ break;
+ }
+ msleep(500);
+ retries--;
+ }
+
+ if (retries < 1) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
+ "FCF selection.\n");
+ return;
+ }
+
+ rval = qedf_send_flogi(qedf);
+ if (rval)
+ return;
+
+ /* Wait for FLOGI completion before proceeding with sending ADISCs */
+ i = wait_for_completion_timeout(&qedf->flogi_compl,
+ qedf->lport->r_a_tov);
+ if (i == 0) {
+ QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
+ return;
+ }
+
+ /*
+ * Call lport->tt.rport_login which will cause libfc to send an
+ * ADISC since the rport is in state ready.
+ */
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ rdata_item = kzalloc(sizeof(struct qedf_tmp_rdata_item),
+ GFP_ATOMIC);
+ if (!rdata_item)
+ continue;
+ if (kref_get_unless_zero(&rdata->kref)) {
+ rdata_item->rdata = rdata;
+ list_add(&rdata_item->list, &rdata_login_list);
+ } else
+ kfree(rdata_item);
+ }
+ rcu_read_unlock();
+ /*
+ * Do the fc_rport_login outside of the rcu lock so we don't take a
+ * mutex in an atomic context.
+ */
+ list_for_each_entry_safe(rdata_item, tmp_rdata_item, &rdata_login_list,
+ list) {
+ list_del(&rdata_item->list);
+ fc_rport_login(rdata_item->rdata);
+ kref_put(&rdata_item->rdata->kref, fc_rport_destroy);
+ kfree(rdata_item);
+ }
+}
+
+static void qedf_update_link_speed(struct qedf_ctx *qedf,
+ struct qed_link_output *link)
+{
+ struct fc_lport *lport = qedf->lport;
+
+ lport->link_speed = FC_PORTSPEED_UNKNOWN;
+ lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
+
+ /* Set fc_host link speed */
+ switch (link->speed) {
+ case 10000:
+ lport->link_speed = FC_PORTSPEED_10GBIT;
+ break;
+ case 25000:
+ lport->link_speed = FC_PORTSPEED_25GBIT;
+ break;
+ case 40000:
+ lport->link_speed = FC_PORTSPEED_40GBIT;
+ break;
+ case 50000:
+ lport->link_speed = FC_PORTSPEED_50GBIT;
+ break;
+ case 100000:
+ lport->link_speed = FC_PORTSPEED_100GBIT;
+ break;
+ default:
+ lport->link_speed = FC_PORTSPEED_UNKNOWN;
+ break;
+ }
+
+ /*
+ * Set supported link speed by querying the supported
+ * capabilities of the link.
+ */
+ if (link->supported_caps & SUPPORTED_10000baseKR_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
+ if (link->supported_caps & SUPPORTED_25000baseKR_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
+ if (link->supported_caps & SUPPORTED_40000baseLR4_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
+ if (link->supported_caps & SUPPORTED_50000baseKR2_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
+ if (link->supported_caps & SUPPORTED_100000baseKR4_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
+ fc_host_supported_speeds(lport->host) = lport->link_supported_speeds;
+}
+
+static void qedf_link_update(void *dev, struct qed_link_output *link)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+
+ if (link->link_up) {
+ QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
+ link->speed / 1000);
+
+ /* Cancel any pending link down work */
+ cancel_delayed_work(&qedf->link_update);
+
+ atomic_set(&qedf->link_state, QEDF_LINK_UP);
+ qedf_update_link_speed(qedf, link);
+
+ if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
+ QEDF_ERR(&(qedf->dbg_ctx), "DCBx done.\n");
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0)
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_recovery, 0);
+ else
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_update, 0);
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ }
+
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
+
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ /*
+ * Flag that we're waiting for the link to come back up before
+ * informing the fcoe layer of the event.
+ */
+ if (qedf_link_down_tmo > 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Starting link down tmo.\n");
+ atomic_set(&qedf->link_down_tmo_valid, 1);
+ }
+ qedf->vlan_id = 0;
+ qedf_update_link_speed(qedf, link);
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ qedf_link_down_tmo * HZ);
+ }
+}
+
+
+static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+
+ QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
+ "prio=%d.\n", get->operational.valid, get->operational.enabled,
+ get->operational.app_prio.fcoe);
+
+ if (get->operational.enabled && get->operational.valid) {
+ /* If DCBX was already negotiated on link up then just exit */
+ if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "DCBX already set on link up.\n");
+ return;
+ }
+
+ atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0)
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_recovery, 0);
+ else
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_update, 0);
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ }
+ }
+
+}
+
+static u32 qedf_get_login_failures(void *cookie)
+{
+ struct qedf_ctx *qedf;
+
+ qedf = (struct qedf_ctx *)cookie;
+ return qedf->flogi_failed;
+}
+
+static struct qed_fcoe_cb_ops qedf_cb_ops = {
+ {
+ .link_update = qedf_link_update,
+ .dcbx_aen = qedf_dcbx_handler,
+ }
+};
+
+/*
+ * Various transport templates.
+ */
+
+static struct scsi_transport_template *qedf_fc_transport_template;
+static struct scsi_transport_template *qedf_fc_vport_transport_template;
+
+/*
+ * SCSI EH handlers
+ */
+static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ struct qedf_ioreq *io_req;
+ int rc = FAILED;
+ int rval;
+
+ if (fc_remote_port_chkready(rport)) {
+ QEDF_ERR(NULL, "rport not ready\n");
+ goto out;
+ }
+
+ lport = shost_priv(sc_cmd->device->host);
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link not ready.\n");
+ goto out;
+ }
+
+ fcport = (struct qedf_rport *)&rp[1];
+
+ io_req = (struct qedf_ioreq *)sc_cmd->SCp.ptr;
+ if (!io_req) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req is NULL.\n");
+ rc = SUCCESS;
+ goto out;
+ }
+
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_ABORT, &io_req->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in "
+ "cleanup or abort processing or already "
+ "completed.\n", io_req->xid);
+ rc = SUCCESS;
+ goto out;
+ }
+
+ QEDF_ERR(&(qedf->dbg_ctx), "Aborting io_req sc_cmd=%p xid=0x%x "
+ "fp_idx=%d.\n", sc_cmd, io_req->xid, io_req->fp_idx);
+
+ if (qedf->stop_io_on_error) {
+ qedf_stop_all_io(qedf);
+ rc = SUCCESS;
+ goto out;
+ }
+
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+ goto out;
+ }
+
+ wait_for_completion(&io_req->abts_done);
+
+ if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
+ io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
+ io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
+ /*
+ * If we get a reponse to the abort this is success from
+ * the perspective that all references to the command have
+ * been removed from the driver and firmware
+ */
+ rc = SUCCESS;
+ } else {
+ /* If the abort and cleanup failed then return a failure */
+ rc = FAILED;
+ }
+
+ if (rc == SUCCESS)
+ QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
+ io_req->xid);
+ else
+ QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
+ io_req->xid);
+
+out:
+ return rc;
+}
+
+static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
+{
+ QEDF_ERR(NULL, "TARGET RESET Issued...");
+ return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
+}
+
+static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
+{
+ QEDF_ERR(NULL, "LUN RESET Issued...\n");
+ return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
+}
+
+void qedf_wait_for_upload(struct qedf_ctx *qedf)
+{
+ while (1) {
+ if (atomic_read(&qedf->num_offloads))
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Waiting for all uploads to complete.\n");
+ else
+ break;
+ msleep(500);
+ }
+}
+
+/* Reset the host by gracefully logging out and then logging back in */
+static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+
+ lport = shost_priv(sc_cmd->device->host);
+
+ if (lport->vport) {
+ QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n");
+ return SUCCESS;
+ }
+
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
+ test_bit(QEDF_UNLOADING, &qedf->flags) ||
+ test_bit(QEDF_DBG_STOP_IO, &qedf->flags))
+ return FAILED;
+
+ QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
+
+ /* For host reset, essentially do a soft link up/down */
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ 0);
+ qedf_wait_for_upload(qedf);
+ atomic_set(&qedf->link_state, QEDF_LINK_UP);
+ qedf->vlan_id = 0;
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ 0);
+
+ return SUCCESS;
+}
+
+static int qedf_slave_configure(struct scsi_device *sdev)
+{
+ if (qedf_queue_depth) {
+ scsi_change_queue_depth(sdev, qedf_queue_depth);
+ }
+
+ return 0;
+}
+
+static struct scsi_host_template qedf_host_template = {
+ .module = THIS_MODULE,
+ .name = QEDF_MODULE_NAME,
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .use_clustering = ENABLE_CLUSTERING,
+ .max_sectors = 0xffff,
+ .queuecommand = qedf_queuecommand,
+ .shost_attrs = qedf_host_attrs,
+ .eh_abort_handler = qedf_eh_abort,
+ .eh_device_reset_handler = qedf_eh_device_reset, /* lun reset */
+ .eh_target_reset_handler = qedf_eh_target_reset, /* target reset */
+ .eh_host_reset_handler = qedf_eh_host_reset,
+ .slave_configure = qedf_slave_configure,
+ .dma_boundary = QED_HW_DMA_BOUNDARY,
+ .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
+ .can_queue = FCOE_PARAMS_NUM_TASKS,
+};
+
+static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+ int rc;
+
+ spin_lock(&qedf_global_lock);
+ rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
+ spin_unlock(&qedf_global_lock);
+
+ return rc;
+}
+
+static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
+{
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ if (rdata->ids.port_id == port_id) {
+ rcu_read_unlock();
+ return fcport;
+ }
+ }
+ rcu_read_unlock();
+
+ /* Return NULL to caller to let them know fcport was not found */
+ return NULL;
+}
+
+/* Transmits an ELS frame over an offloaded session */
+static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
+{
+ struct fc_frame_header *fh;
+ int rc = 0;
+
+ fh = fc_frame_header_get(fp);
+ if ((fh->fh_type == FC_TYPE_ELS) &&
+ (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_ADISC:
+ qedf_send_adisc(fcport, fp);
+ rc = 1;
+ break;
+ }
+ }
+
+ return rc;
+}
+
+/**
+ * qedf_xmit - qedf FCoE frame transmit function
+ *
+ */
+static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+ struct fc_lport *base_lport;
+ struct qedf_ctx *qedf;
+ struct ethhdr *eh;
+ struct fcoe_crc_eof *cp;
+ struct sk_buff *skb;
+ struct fc_frame_header *fh;
+ struct fcoe_hdr *hp;
+ u8 sof, eof;
+ u32 crc;
+ unsigned int hlen, tlen, elen;
+ int wlen;
+ struct fc_stats *stats;
+ struct fc_lport *tmp_lport;
+ struct fc_lport *vn_port = NULL;
+ struct qedf_rport *fcport;
+ int rc;
+ u16 vlan_tci = 0;
+
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ fh = fc_frame_header_get(fp);
+ skb = fp_skb(fp);
+
+ /* Filter out traffic to other NPIV ports on the same host */
+ if (lport->vport)
+ base_lport = shost_priv(vport_to_shost(lport->vport));
+ else
+ base_lport = lport;
+
+ /* Flag if the destination is the base port */
+ if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
+ vn_port = base_lport;
+ } else {
+ /* Got through the list of vports attached to the base_lport
+ * and see if we have a match with the destination address.
+ */
+ list_for_each_entry(tmp_lport, &base_lport->vports, list) {
+ if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
+ vn_port = tmp_lport;
+ break;
+ }
+ }
+ }
+ if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
+ struct fc_rport_priv *rdata = NULL;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
+ kfree_skb(skb);
+ rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
+ if (rdata)
+ rdata->retries = lport->max_rport_retry_count;
+ return -EINVAL;
+ }
+ /* End NPIV filtering */
+
+ if (!qedf->ctlr.sel_fcf) {
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
+ return 0;
+ }
+
+ /* Check to see if this needs to be sent on an offloaded session */
+ fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
+
+ if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ rc = qedf_xmit_l2_frame(fcport, fp);
+ /*
+ * If the frame was successfully sent over the middle path
+ * then do not try to also send it over the LL2 path
+ */
+ if (rc)
+ return 0;
+ }
+
+ sof = fr_sof(fp);
+ eof = fr_eof(fp);
+
+ elen = sizeof(struct ethhdr);
+ hlen = sizeof(struct fcoe_hdr);
+ tlen = sizeof(struct fcoe_crc_eof);
+ wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ crc = fcoe_fc_crc(fp);
+
+ /* copy port crc and eof to the skb buff */
+ if (skb_is_nonlinear(skb)) {
+ skb_frag_t *frag;
+
+ if (qedf_get_paged_crc_eof(skb, tlen)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+ cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
+ } else {
+ cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+ }
+
+ memset(cp, 0, sizeof(*cp));
+ cp->fcoe_eof = eof;
+ cp->fcoe_crc32 = cpu_to_le32(~crc);
+ if (skb_is_nonlinear(skb)) {
+ kunmap_atomic(cp);
+ cp = NULL;
+ }
+
+
+ /* adjust skb network/transport offsets to match mac/fcoe/port */
+ skb_push(skb, elen + hlen);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb->mac_len = elen;
+ skb->protocol = htons(ETH_P_FCOE);
+
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
+
+ /* fill up mac and fcoe headers */
+ eh = eth_hdr(skb);
+ eh->h_proto = htons(ETH_P_FCOE);
+ if (qedf->ctlr.map_dest)
+ fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+ else
+ /* insert GW address */
+ ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
+
+ /* Set the source MAC address */
+ fc_fcoe_set_mac(eh->h_source, fh->fh_s_id);
+
+ hp = (struct fcoe_hdr *)(eh + 1);
+ memset(hp, 0, sizeof(*hp));
+ if (FC_FCOE_VER)
+ FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+ hp->fcoe_sof = sof;
+
+ /*update tx stats */
+ stats = per_cpu_ptr(lport->stats, get_cpu());
+ stats->TxFrames++;
+ stats->TxWords += wlen;
+ put_cpu();
+
+ /* Get VLAN ID from skb for printing purposes */
+ __vlan_hwaccel_get_tag(skb, &vlan_tci);
+
+ /* send down to lld */
+ fr_dev(fp) = lport;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
+ "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
+ ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
+ vlan_tci);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
+ 1, skb->data, skb->len, false);
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+
+ return 0;
+}
+
+static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
+{
+ int rval = 0;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ /* Calculate appropriate queue and PBL sizes */
+ fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
+ fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
+ fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
+ sizeof(void *);
+ fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
+
+ fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
+ &fcport->sq_dma, GFP_KERNEL);
+ if (!fcport->sq) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
+ "queue.\n");
+ rval = 1;
+ goto out;
+ }
+ memset(fcport->sq, 0, fcport->sq_mem_size);
+
+ fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+ fcport->sq_pbl_size, &fcport->sq_pbl_dma, GFP_KERNEL);
+ if (!fcport->sq_pbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
+ "queue PBL.\n");
+ rval = 1;
+ goto out_free_sq;
+ }
+ memset(fcport->sq_pbl, 0, fcport->sq_pbl_size);
+
+ /* Create PBL */
+ num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
+ page = fcport->sq_dma;
+ pbl = (u32 *)fcport->sq_pbl;
+
+ while (num_pages--) {
+ *pbl = U64_LO(page);
+ pbl++;
+ *pbl = U64_HI(page);
+ pbl++;
+ page += QEDF_PAGE_SIZE;
+ }
+
+ return rval;
+
+out_free_sq:
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
+ fcport->sq_dma);
+out:
+ return rval;
+}
+
+static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
+{
+ if (fcport->sq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
+ fcport->sq_pbl, fcport->sq_pbl_dma);
+ if (fcport->sq)
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
+ fcport->sq, fcport->sq_dma);
+}
+
+static int qedf_offload_connection(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ struct qed_fcoe_params_offload conn_info;
+ u32 port_id;
+ u8 lport_src_id[3];
+ int rval;
+ uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
+ "portid=%06x.\n", fcport->rdata->ids.port_id);
+ rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
+ &fcport->fw_cid, &fcport->p_doorbell);
+ if (rval) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
+ "for portid=%06x.\n", fcport->rdata->ids.port_id);
+ rval = 1; /* For some reason qed returns 0 on failure here */
+ goto out;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
+ "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
+ fcport->fw_cid, fcport->handle);
+
+ memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
+
+ /* Fill in the offload connection info */
+ conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
+
+ conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
+ conn_info.sq_next_page_addr =
+ (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
+
+ /* Need to use our FCoE MAC for the offload session */
+ port_id = fc_host_port_id(qedf->lport->host);
+ lport_src_id[2] = (port_id & 0x000000FF);
+ lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
+ lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
+ fc_fcoe_set_mac(conn_info.src_mac, lport_src_id);
+
+ ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
+
+ conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
+ conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov / 20;
+ conn_info.rec_tov_timer_val = 3; /* I think this is what E3 was */
+ conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
+
+ /* Set VLAN data */
+ conn_info.vlan_tag = qedf->vlan_id <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
+ conn_info.vlan_tag |=
+ qedf_default_prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
+ conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
+
+ /* Set host port source id */
+ port_id = fc_host_port_id(qedf->lport->host);
+ fcport->sid = port_id;
+ conn_info.s_id.addr_hi = (port_id & 0x000000FF);
+ conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
+ conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
+
+ conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
+
+ /* Set remote port destination id */
+ port_id = fcport->rdata->rport->port_id;
+ conn_info.d_id.addr_hi = (port_id & 0x000000FF);
+ conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
+ conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
+
+ conn_info.def_q_idx = 0; /* Default index for send queue? */
+
+ /* Set FC-TAPE specific flags if needed */
+ if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
+ "Enable CONF, REC for portid=%06x.\n",
+ fcport->rdata->ids.port_id);
+ conn_info.flags |= 1 <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
+ conn_info.flags |=
+ ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
+ }
+
+ rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
+ if (rval) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
+ "for portid=%06x.\n", fcport->rdata->ids.port_id);
+ goto out_free_conn;
+ } else
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
+ "succeeded portid=%06x total_sqe=%d.\n",
+ fcport->rdata->ids.port_id, total_sqe);
+
+ spin_lock_init(&fcport->rport_lock);
+ atomic_set(&fcport->free_sqes, total_sqe);
+ return 0;
+out_free_conn:
+ qed_ops->release_conn(qedf->cdev, fcport->handle);
+out:
+ return rval;
+}
+
+#define QEDF_TERM_BUFF_SIZE 10
+static void qedf_upload_connection(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ void *term_params;
+ dma_addr_t term_params_dma;
+
+ /* Term params needs to be a DMA coherent buffer as qed shared the
+ * physical DMA address with the firmware. The buffer may be used in
+ * the receive path so we may eventually have to move this.
+ */
+ term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
+ &term_params_dma, GFP_KERNEL);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
+ "port_id=%06x.\n", fcport->rdata->ids.port_id);
+
+ qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
+ qed_ops->release_conn(qedf->cdev, fcport->handle);
+
+ dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
+ term_params_dma);
+}
+
+static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
+ fcport->rdata->ids.port_id);
+
+ /* Flush any remaining i/o's before we upload the connection */
+ qedf_flush_active_ios(fcport, -1);
+
+ if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
+ qedf_upload_connection(qedf, fcport);
+ qedf_free_sq(qedf, fcport);
+ fcport->rdata = NULL;
+ fcport->qedf = NULL;
+}
+
+/**
+ * This event_callback is called after successful completion of libfc
+ * initiated target login. qedf can proceed with initiating the session
+ * establishment.
+ */
+static void qedf_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rdata,
+ enum fc_rport_event event)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fc_rport *rport = rdata->rport;
+ struct fc_rport_libfc_priv *rp;
+ struct qedf_rport *fcport;
+ u32 port_id;
+ int rval;
+ unsigned long flags;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
+ "port_id = 0x%x\n", event, rdata->ids.port_id);
+
+ switch (event) {
+ case RPORT_EV_READY:
+ if (!rport) {
+ QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
+ break;
+ }
+
+ rp = rport->dd_data;
+ fcport = (struct qedf_rport *)&rp[1];
+ fcport->qedf = qedf;
+
+ if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
+ "portid=0x%x as max number of offloaded sessions "
+ "reached.\n", rdata->ids.port_id);
+ return;
+ }
+
+ /*
+ * Don't try to offload the session again. Can happen when we
+ * get an ADISC
+ */
+ if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Session already "
+ "offloaded, portid=0x%x.\n",
+ rdata->ids.port_id);
+ return;
+ }
+
+ if (rport->port_id == FC_FID_DIR_SERV) {
+ /*
+ * qedf_rport structure doesn't exist for
+ * directory server.
+ * We should not come here, as lport will
+ * take care of fabric login
+ */
+ QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
+ "exist for dir server port_id=%x\n",
+ rdata->ids.port_id);
+ break;
+ }
+
+ if (rdata->spp_type != FC_TYPE_FCP) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Not offlading since since spp type isn't FCP\n");
+ break;
+ }
+ if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Not FCP target so not offloading\n");
+ break;
+ }
+
+ fcport->rdata = rdata;
+ fcport->rport = rport;
+
+ rval = qedf_alloc_sq(qedf, fcport);
+ if (rval) {
+ qedf_cleanup_fcport(qedf, fcport);
+ break;
+ }
+
+ /* Set device type */
+ if (rdata->flags & FC_RP_FLAGS_RETRY &&
+ rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
+ !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
+ fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "portid=%06x is a TAPE device.\n",
+ rdata->ids.port_id);
+ } else {
+ fcport->dev_type = QEDF_RPORT_TYPE_DISK;
+ }
+
+ rval = qedf_offload_connection(qedf, fcport);
+ if (rval) {
+ qedf_cleanup_fcport(qedf, fcport);
+ break;
+ }
+
+ /* Add fcport to list of qedf_ctx list of offloaded ports */
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+ list_add_rcu(&fcport->peers, &qedf->fcports);
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+
+ /*
+ * Set the session ready bit to let everyone know that this
+ * connection is ready for I/O
+ */
+ set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
+ atomic_inc(&qedf->num_offloads);
+
+ break;
+ case RPORT_EV_LOGO:
+ case RPORT_EV_FAILED:
+ case RPORT_EV_STOP:
+ port_id = rdata->ids.port_id;
+ if (port_id == FC_FID_DIR_SERV)
+ break;
+
+ if (!rport) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "port_id=%x - rport notcreated Yet!!\n", port_id);
+ break;
+ }
+ rp = rport->dd_data;
+ /*
+ * Perform session upload. Note that rdata->peers is already
+ * removed from disc->rports list before we get this event.
+ */
+ fcport = (struct qedf_rport *)&rp[1];
+
+ /* Only free this fcport if it is offloaded already */
+ if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ set_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags);
+ qedf_cleanup_fcport(qedf, fcport);
+
+ /*
+ * Remove fcport to list of qedf_ctx list of offloaded
+ * ports
+ */
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+ list_del_rcu(&fcport->peers);
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+
+ clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
+ &fcport->flags);
+ atomic_dec(&qedf->num_offloads);
+ }
+
+ break;
+
+ case RPORT_EV_NONE:
+ break;
+ }
+}
+
+static void qedf_abort_io(struct fc_lport *lport)
+{
+ /* NO-OP but need to fill in the template */
+}
+
+static void qedf_fcp_cleanup(struct fc_lport *lport)
+{
+ /*
+ * NO-OP but need to fill in template to prevent a NULL
+ * function pointer dereference during link down. I/Os
+ * will be flushed when port is uploaded.
+ */
+}
+
+static struct libfc_function_template qedf_lport_template = {
+ .frame_send = qedf_xmit,
+ .fcp_abort_io = qedf_abort_io,
+ .fcp_cleanup = qedf_fcp_cleanup,
+ .rport_event_callback = qedf_rport_event_handler,
+ .elsct_send = qedf_elsct_send,
+};
+
+static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
+{
+ fcoe_ctlr_init(&qedf->ctlr, FIP_ST_AUTO);
+
+ qedf->ctlr.send = qedf_fip_send;
+ qedf->ctlr.update_mac = qedf_update_src_mac;
+ qedf->ctlr.get_src_addr = qedf_get_src_mac;
+ ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
+}
+
+static int qedf_lport_setup(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport = qedf->lport;
+
+ lport->link_up = 0;
+ lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
+ lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->boot_time = jiffies;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+
+ /* Set NPIV support */
+ lport->does_npiv = 1;
+ fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
+
+ fc_set_wwnn(lport, qedf->wwnn);
+ fc_set_wwpn(lport, qedf->wwpn);
+
+ fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0);
+
+ /* Allocate the exchange manager */
+ fc_exch_mgr_alloc(lport, FC_CLASS_3, qedf->max_scsi_xid + 1,
+ qedf->max_els_xid, NULL);
+
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish lport config */
+ fc_lport_config(lport);
+
+ /* Set max frame size */
+ fc_set_mfs(lport, QEDF_MFS);
+ fc_host_maxframe_size(lport->host) = lport->mfs;
+
+ /* Set default dev_loss_tmo based on module parameter */
+ fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
+
+ /* Set symbolic node name */
+ snprintf(fc_host_symbolic_name(lport->host), 256,
+ "QLogic %s v%s", QEDF_MODULE_NAME, QEDF_VERSION);
+
+ return 0;
+}
+
+/*
+ * NPIV functions
+ */
+
+static int qedf_vport_libfc_config(struct fc_vport *vport,
+ struct fc_lport *lport)
+{
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
+ lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->boot_time = jiffies;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+ lport->does_npiv = 1; /* Temporary until we add NPIV support */
+
+ /* Allocate stats for vport */
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish lport config */
+ fc_lport_config(lport);
+
+ /* offload related configuration */
+ lport->crc_offload = 0;
+ lport->seq_offload = 0;
+ lport->lro_enabled = 0;
+ lport->lro_xid = 0;
+ lport->lso_max = 0;
+
+ return 0;
+}
+
+static int qedf_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port;
+ struct qedf_ctx *base_qedf = lport_priv(n_port);
+ struct qedf_ctx *vport_qedf;
+
+ char buf[32];
+ int rc = 0;
+
+ rc = fcoe_validate_vport_create(vport);
+ if (rc) {
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
+ "WWPN (0x%s) already exists.\n", buf);
+ goto err1;
+ }
+
+ if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
+ "because link is not up.\n");
+ rc = -EIO;
+ goto err1;
+ }
+
+ vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
+ if (!vn_port) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
+ "for vport.\n");
+ rc = -ENOMEM;
+ goto err1;
+ }
+
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
+ buf);
+
+ /* Copy some fields from base_qedf */
+ vport_qedf = lport_priv(vn_port);
+ memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
+
+ /* Set qedf data specific to this vport */
+ vport_qedf->lport = vn_port;
+ /* Use same hba_lock as base_qedf */
+ vport_qedf->hba_lock = base_qedf->hba_lock;
+ vport_qedf->pdev = base_qedf->pdev;
+ vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
+ init_completion(&vport_qedf->flogi_compl);
+ INIT_LIST_HEAD(&vport_qedf->fcports);
+
+ rc = qedf_vport_libfc_config(vport, vn_port);
+ if (rc) {
+ QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
+ "for lport stats.\n");
+ goto err2;
+ }
+
+ fc_set_wwnn(vn_port, vport->node_name);
+ fc_set_wwpn(vn_port, vport->port_name);
+ vport_qedf->wwnn = vn_port->wwnn;
+ vport_qedf->wwpn = vn_port->wwpn;
+
+ vn_port->host->transportt = qedf_fc_vport_transport_template;
+ vn_port->host->can_queue = QEDF_MAX_ELS_XID;
+ vn_port->host->max_lun = qedf_max_lun;
+ vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
+ vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
+
+ rc = scsi_add_host(vn_port->host, &vport->dev);
+ if (rc) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Error adding Scsi_Host.\n");
+ goto err2;
+ }
+
+ /* Set default dev_loss_tmo based on module parameter */
+ fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
+
+ /* Init libfc stuffs */
+ memcpy(&vn_port->tt, &qedf_lport_template,
+ sizeof(qedf_lport_template));
+ fc_exch_init(vn_port);
+ fc_elsct_init(vn_port);
+ fc_lport_init(vn_port);
+ fc_disc_init(vn_port);
+ fc_disc_config(vn_port, vn_port);
+
+
+ /* Allocate the exchange manager */
+ shost = vport_to_shost(vport);
+ n_port = shost_priv(shost);
+ fc_exch_mgr_list_clone(n_port, vn_port);
+
+ /* Set max frame size */
+ fc_set_mfs(vn_port, QEDF_MFS);
+
+ fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+
+ QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
+ vn_port);
+
+ /* Set up debug context for vport */
+ vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
+ vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
+
+err2:
+ scsi_host_put(vn_port->host);
+err1:
+ return rc;
+}
+
+static int qedf_vport_destroy(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port = vport->dd_data;
+
+ mutex_lock(&n_port->lp_mutex);
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+
+ fc_fabric_logoff(vn_port);
+ fc_lport_destroy(vn_port);
+
+ /* Detach from scsi-ml */
+ fc_remove_host(vn_port->host);
+ scsi_remove_host(vn_port->host);
+
+ /*
+ * Only try to release the exchange manager if the vn_port
+ * configuration is complete.
+ */
+ if (vn_port->state == LPORT_ST_READY)
+ fc_exch_mgr_free(vn_port);
+
+ /* Free memory used by statistical counters */
+ fc_lport_free_stats(vn_port);
+
+ /* Release Scsi_Host */
+ if (vn_port->host)
+ scsi_host_put(vn_port->host);
+
+ return 0;
+}
+
+static int qedf_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+ return 0;
+}
+
+/*
+ * During removal we need to wait for all the vports associated with a port
+ * to be destroyed so we avoid a race condition where libfc is still trying
+ * to reap vports while the driver remove function has already reaped the
+ * driver contexts associated with the physical port.
+ */
+static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
+{
+ struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
+ "Entered.\n");
+ while (fc_host->npiv_vports_inuse > 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
+ "Waiting for all vports to be reaped.\n");
+ msleep(1000);
+ }
+}
+
+/**
+ * qedf_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int qedf_fcoe_reset(struct Scsi_Host *shost)
+{
+ struct fc_lport *lport = shost_priv(shost);
+
+ fc_fabric_logoff(lport);
+ fc_fabric_login(lport);
+ return 0;
+}
+
+static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
+ *shost)
+{
+ struct fc_host_statistics *qedf_stats;
+ struct fc_lport *lport = shost_priv(shost);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct qed_fcoe_stats *fw_fcoe_stats;
+
+ qedf_stats = fc_get_host_stats(shost);
+
+ /* We don't collect offload stats for specific NPIV ports */
+ if (lport->vport)
+ goto out;
+
+ fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
+ if (!fw_fcoe_stats) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
+ "fw_fcoe_stats.\n");
+ goto out;
+ }
+
+ /* Query firmware for offload stats */
+ qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
+
+ /*
+ * The expectation is that we add our offload stats to the stats
+ * being maintained by libfc each time the fc_get_host_status callback
+ * is invoked. The additions are not carried over for each call to
+ * the fc_get_host_stats callback.
+ */
+ qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
+ fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
+ fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
+ qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
+ fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
+ fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
+ qedf_stats->fcp_input_megabytes +=
+ do_div(fw_fcoe_stats->fcoe_rx_byte_cnt, 1000000);
+ qedf_stats->fcp_output_megabytes +=
+ do_div(fw_fcoe_stats->fcoe_tx_byte_cnt, 1000000);
+ qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
+ qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
+ qedf_stats->invalid_crc_count +=
+ fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
+ qedf_stats->dumped_frames =
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
+ qedf_stats->error_frames +=
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
+ qedf_stats->fcp_input_requests += qedf->input_requests;
+ qedf_stats->fcp_output_requests += qedf->output_requests;
+ qedf_stats->fcp_control_requests += qedf->control_requests;
+ qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
+ qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
+
+ kfree(fw_fcoe_stats);
+out:
+ return qedf_stats;
+}
+
+static struct fc_function_template qedf_fc_transport_fn = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ /*
+ * Tell FC transport to allocate enough space to store the backpointer
+ * for the associate qedf_rport struct.
+ */
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct qedf_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = qedf_fc_get_host_stats,
+ .issue_fc_host_lip = qedf_fcoe_reset,
+ .vport_create = qedf_vport_create,
+ .vport_delete = qedf_vport_destroy,
+ .vport_disable = qedf_vport_disable,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static struct fc_function_template qedf_fc_vport_transport_fn = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct qedf_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = qedf_fcoe_reset,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static bool qedf_fp_has_work(struct qedf_fastpath *fp)
+{
+ struct qedf_ctx *qedf = fp->qedf;
+ struct global_queue *que;
+ struct qed_sb_info *sb_info = fp->sb_info;
+ struct status_block *sb = sb_info->sb_virt;
+ u16 prod_idx;
+
+ /* Get the pointer to the global CQ this completion is on */
+ que = qedf->global_queues[fp->sb_id];
+
+ /* Be sure all responses have been written to PI */
+ rmb();
+
+ /* Get the current firmware producer index */
+ prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
+
+ return (que->cq_prod_idx != prod_idx);
+}
+
+/*
+ * Interrupt handler code.
+ */
+
+/* Process completion queue and copy CQE contents for deferred processesing
+ *
+ * Return true if we should wake the I/O thread, false if not.
+ */
+static bool qedf_process_completions(struct qedf_fastpath *fp)
+{
+ struct qedf_ctx *qedf = fp->qedf;
+ struct qed_sb_info *sb_info = fp->sb_info;
+ struct status_block *sb = sb_info->sb_virt;
+ struct global_queue *que;
+ u16 prod_idx;
+ struct fcoe_cqe *cqe;
+ struct qedf_io_work *io_work;
+ int num_handled = 0;
+ unsigned int cpu;
+ struct qedf_ioreq *io_req = NULL;
+ u16 xid;
+ u16 new_cqes;
+ u32 comp_type;
+
+ /* Get the current firmware producer index */
+ prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
+
+ /* Get the pointer to the global CQ this completion is on */
+ que = qedf->global_queues[fp->sb_id];
+
+ /* Calculate the amount of new elements since last processing */
+ new_cqes = (prod_idx >= que->cq_prod_idx) ?
+ (prod_idx - que->cq_prod_idx) :
+ 0x10000 - que->cq_prod_idx + prod_idx;
+
+ /* Save producer index */
+ que->cq_prod_idx = prod_idx;
+
+ while (new_cqes) {
+ fp->completions++;
+ num_handled++;
+ cqe = &que->cq[que->cq_cons_idx];
+
+ comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+
+ /*
+ * Process unsolicited CQEs directly in the interrupt handler
+ * sine we need the fastpath ID
+ */
+ if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "Unsolicated CQE.\n");
+ qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
+ /*
+ * Don't add a work list item. Increment consumer
+ * consumer index and move on.
+ */
+ goto inc_idx;
+ }
+
+ xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
+ io_req = &qedf->cmd_mgr->cmds[xid];
+
+ /*
+ * Figure out which percpu thread we should queue this I/O
+ * on.
+ */
+ if (!io_req)
+ /* If there is not io_req assocated with this CQE
+ * just queue it on CPU 0
+ */
+ cpu = 0;
+ else {
+ cpu = io_req->cpu;
+ io_req->int_cpu = smp_processor_id();
+ }
+
+ io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
+ if (!io_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "work for I/O completion.\n");
+ continue;
+ }
+ memset(io_work, 0, sizeof(struct qedf_io_work));
+
+ INIT_WORK(&io_work->work, qedf_fp_io_handler);
+
+ /* Copy contents of CQE for deferred processing */
+ memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
+
+ io_work->qedf = fp->qedf;
+ io_work->fp = NULL; /* Only used for unsolicited frames */
+
+ queue_work_on(cpu, qedf_io_wq, &io_work->work);
+
+inc_idx:
+ que->cq_cons_idx++;
+ if (que->cq_cons_idx == fp->cq_num_entries)
+ que->cq_cons_idx = 0;
+ new_cqes--;
+ }
+
+ return true;
+}
+
+
+/* MSI-X fastpath handler code */
+static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
+{
+ struct qedf_fastpath *fp = dev_id;
+
+ if (!fp) {
+ QEDF_ERR(NULL, "fp is null.\n");
+ return IRQ_HANDLED;
+ }
+ if (!fp->sb_info) {
+ QEDF_ERR(NULL, "fp->sb_info in null.");
+ return IRQ_HANDLED;
+ }
+
+ /*
+ * Disable interrupts for this status block while we process new
+ * completions
+ */
+ qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/);
+
+ while (1) {
+ qedf_process_completions(fp);
+
+ if (qedf_fp_has_work(fp) == 0) {
+ /* Update the sb information */
+ qed_sb_update_sb_idx(fp->sb_info);
+
+ /* Check for more work */
+ rmb();
+
+ if (qedf_fp_has_work(fp) == 0) {
+ /* Re-enable interrupts */
+ qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
+ return IRQ_HANDLED;
+ }
+ }
+ }
+
+ /* Do we ever want to break out of above loop? */
+ return IRQ_HANDLED;
+}
+
+/* simd handler for MSI/INTa */
+static void qedf_simd_int_handler(void *cookie)
+{
+ /* Cookie is qedf_ctx struct */
+ struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
+
+ QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
+}
+
+#define QEDF_SIMD_HANDLER_NUM 0
+static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
+{
+ int i;
+
+ if (qedf->int_info.msix_cnt) {
+ for (i = 0; i < qedf->int_info.used_cnt; i++) {
+ synchronize_irq(qedf->int_info.msix[i].vector);
+ irq_set_affinity_hint(qedf->int_info.msix[i].vector,
+ NULL);
+ irq_set_affinity_notifier(qedf->int_info.msix[i].vector,
+ NULL);
+ free_irq(qedf->int_info.msix[i].vector,
+ &qedf->fp_array[i]);
+ }
+ } else
+ qed_ops->common->simd_handler_clean(qedf->cdev,
+ QEDF_SIMD_HANDLER_NUM);
+
+ qedf->int_info.used_cnt = 0;
+ qed_ops->common->set_fp_int(qedf->cdev, 0);
+}
+
+static int qedf_request_msix_irq(struct qedf_ctx *qedf)
+{
+ int i, rc, cpu;
+
+ cpu = cpumask_first(cpu_online_mask);
+ for (i = 0; i < qedf->num_queues; i++) {
+ rc = request_irq(qedf->int_info.msix[i].vector,
+ qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
+
+ if (rc) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
+ qedf_sync_free_irqs(qedf);
+ return rc;
+ }
+
+ qedf->int_info.used_cnt++;
+ rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
+ get_cpu_mask(cpu));
+ cpu = cpumask_next(cpu, cpu_online_mask);
+ }
+
+ return 0;
+}
+
+static int qedf_setup_int(struct qedf_ctx *qedf)
+{
+ int rc = 0;
+
+ /*
+ * Learn interrupt configuration
+ */
+ rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
+
+ rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
+ if (rc)
+ return 0;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
+ "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
+ num_online_cpus());
+
+ if (qedf->int_info.msix_cnt)
+ return qedf_request_msix_irq(qedf);
+
+ qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
+ QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
+ qedf->int_info.used_cnt = 1;
+
+ return 0;
+}
+
+/* Main function for libfc frame reception */
+static void qedf_recv_frame(struct qedf_ctx *qedf,
+ struct sk_buff *skb)
+{
+ u32 fr_len;
+ struct fc_lport *lport;
+ struct fc_frame_header *fh;
+ struct fcoe_crc_eof crc_eof;
+ struct fc_frame *fp;
+ u8 *mac = NULL;
+ u8 *dest_mac = NULL;
+ struct fcoe_hdr *hp;
+ struct qedf_rport *fcport;
+
+ lport = qedf->lport;
+ if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
+ QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb);
+ mac = eth_hdr(skb)->h_source;
+ dest_mac = eth_hdr(skb)->h_dest;
+
+ /* Pull the header */
+ hp = (struct fcoe_hdr *)skb->data;
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ fh = fc_frame_header_get(fp);
+
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ /* Drop FCP data. We dont this in L2 path */
+ kfree_skb(skb);
+ return;
+ }
+ if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+ fh->fh_type == FC_TYPE_ELS) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_LOGO:
+ if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ /* drop non-FIP LOGO */
+ kfree_skb(skb);
+ return;
+ }
+ break;
+ }
+ }
+
+ if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
+ /* Drop incoming ABTS */
+ kfree_skb(skb);
+ return;
+ }
+
+ /*
+ * If a connection is uploading, drop incoming FCoE frames as there
+ * is a small window where we could try to return a frame while libfc
+ * is trying to clean things up.
+ */
+
+ /* Get fcport associated with d_id if it exists */
+ fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
+
+ if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
+ &fcport->flags)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "Connection uploading, dropping fp=%p.\n", fp);
+ kfree_skb(skb);
+ return;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
+ "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
+ ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
+ fh->fh_type);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
+ 1, skb->data, skb->len, false);
+ fc_exch_recv(lport, fp);
+}
+
+static void qedf_ll2_process_skb(struct work_struct *work)
+{
+ struct qedf_skb_work *skb_work =
+ container_of(work, struct qedf_skb_work, work);
+ struct qedf_ctx *qedf = skb_work->qedf;
+ struct sk_buff *skb = skb_work->skb;
+ struct ethhdr *eh;
+
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL\n");
+ goto err_out;
+ }
+
+ eh = (struct ethhdr *)skb->data;
+
+ /* Undo VLAN encapsulation */
+ if (eh->h_proto == htons(ETH_P_8021Q)) {
+ memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
+ eh = (struct ethhdr *)skb_pull(skb, VLAN_HLEN);
+ skb_reset_mac_header(skb);
+ }
+
+ /*
+ * Process either a FIP frame or FCoE frame based on the
+ * protocol value. If it's not either just drop the
+ * frame.
+ */
+ if (eh->h_proto == htons(ETH_P_FIP)) {
+ qedf_fip_recv(qedf, skb);
+ goto out;
+ } else if (eh->h_proto == htons(ETH_P_FCOE)) {
+ __skb_pull(skb, ETH_HLEN);
+ qedf_recv_frame(qedf, skb);
+ goto out;
+ } else
+ goto err_out;
+
+err_out:
+ kfree_skb(skb);
+out:
+ kfree(skb_work);
+ return;
+}
+
+static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
+ u32 arg1, u32 arg2)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
+ struct qedf_skb_work *skb_work;
+
+ skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
+ if (!skb_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
+ "dropping frame.\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
+ skb_work->skb = skb;
+ skb_work->qedf = qedf;
+ queue_work(qedf->ll2_recv_wq, &skb_work->work);
+
+ return 0;
+}
+
+static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
+ .rx_cb = qedf_ll2_rx,
+ .tx_cb = NULL,
+};
+
+/* Main thread to process I/O completions */
+void qedf_fp_io_handler(struct work_struct *work)
+{
+ struct qedf_io_work *io_work =
+ container_of(work, struct qedf_io_work, work);
+ u32 comp_type;
+
+ /*
+ * Deferred part of unsolicited CQE sends
+ * frame to libfc.
+ */
+ comp_type = (io_work->cqe.cqe_data >>
+ FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+ if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
+ io_work->fp)
+ fc_exch_recv(io_work->qedf->lport, io_work->fp);
+ else
+ qedf_process_cqe(io_work->qedf, &io_work->cqe);
+
+ kfree(io_work);
+}
+
+static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
+ struct qed_sb_info *sb_info, u16 sb_id)
+{
+ struct status_block *sb_virt;
+ dma_addr_t sb_phys;
+ int ret;
+
+ sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
+ sizeof(struct status_block), &sb_phys, GFP_KERNEL);
+
+ if (!sb_virt) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Status block allocation failed "
+ "for id = %d.\n", sb_id);
+ return -ENOMEM;
+ }
+
+ ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
+ sb_id, QED_SB_TYPE_STORAGE);
+
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Status block initialization "
+ "failed for id = %d.\n", sb_id);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
+{
+ if (sb_info->sb_virt)
+ dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
+ (void *)sb_info->sb_virt, sb_info->sb_phys);
+}
+
+static void qedf_destroy_sb(struct qedf_ctx *qedf)
+{
+ int id;
+ struct qedf_fastpath *fp = NULL;
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ if (fp->sb_id == QEDF_SB_ID_NULL)
+ break;
+ qedf_free_sb(qedf, fp->sb_info);
+ kfree(fp->sb_info);
+ }
+ kfree(qedf->fp_array);
+}
+
+static int qedf_prepare_sb(struct qedf_ctx *qedf)
+{
+ int id;
+ struct qedf_fastpath *fp;
+ int ret;
+
+ qedf->fp_array =
+ kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
+ GFP_KERNEL);
+
+ if (!qedf->fp_array) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
+ "failed.\n");
+ return -ENOMEM;
+ }
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ fp->sb_id = QEDF_SB_ID_NULL;
+ fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
+ if (!fp->sb_info) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
+ "allocation failed.\n");
+ goto err;
+ }
+ ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
+ "initialization failed.\n");
+ goto err;
+ }
+ fp->sb_id = id;
+ fp->qedf = qedf;
+ fp->cq_num_entries =
+ qedf->global_queues[id]->cq_mem_size /
+ sizeof(struct fcoe_cqe);
+ }
+err:
+ return 0;
+}
+
+void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
+{
+ u16 xid;
+ struct qedf_ioreq *io_req;
+ struct qedf_rport *fcport;
+ u32 comp_type;
+
+ comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+
+ xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
+ io_req = &qedf->cmd_mgr->cmds[xid];
+
+ /* Completion not for a valid I/O anymore so just return */
+ if (!io_req)
+ return;
+
+ fcport = io_req->fcport;
+
+ if (fcport == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fcport is NULL.\n");
+ return;
+ }
+
+ /*
+ * Check that fcport is offloaded. If it isn't then the spinlock
+ * isn't valid and shouldn't be taken. We should just return.
+ */
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
+ return;
+ }
+
+
+ switch (comp_type) {
+ case FCOE_GOOD_COMPLETION_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ switch (io_req->cmd_type) {
+ case QEDF_SCSI_CMD:
+ qedf_scsi_completion(qedf, cqe, io_req);
+ break;
+ case QEDF_ELS:
+ qedf_process_els_compl(qedf, cqe, io_req);
+ break;
+ case QEDF_TASK_MGMT_CMD:
+ qedf_process_tmf_compl(qedf, cqe, io_req);
+ break;
+ case QEDF_SEQ_CLEANUP:
+ qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
+ break;
+ }
+ break;
+ case FCOE_ERROR_DETECTION_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Error detect CQE.\n");
+ qedf_process_error_detect(qedf, cqe, io_req);
+ break;
+ case FCOE_EXCH_CLEANUP_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Cleanup CQE.\n");
+ qedf_process_cleanup_compl(qedf, cqe, io_req);
+ break;
+ case FCOE_ABTS_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Abort CQE.\n");
+ qedf_process_abts_compl(qedf, cqe, io_req);
+ break;
+ case FCOE_DUMMY_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Dummy CQE.\n");
+ break;
+ case FCOE_LOCAL_COMP_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Local completion CQE.\n");
+ break;
+ case FCOE_WARNING_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Warning CQE.\n");
+ qedf_process_warning_compl(qedf, cqe, io_req);
+ break;
+ case MAX_FCOE_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Max FCoE CQE.\n");
+ break;
+ default:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Default CQE.\n");
+ break;
+ }
+}
+
+static void qedf_free_bdq(struct qedf_ctx *qedf)
+{
+ int i;
+
+ if (qedf->bdq_pbl_list)
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
+
+ if (qedf->bdq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
+ qedf->bdq_pbl, qedf->bdq_pbl_dma);
+
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ if (qedf->bdq[i].buf_addr) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
+ qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
+ }
+ }
+}
+
+static void qedf_free_global_queues(struct qedf_ctx *qedf)
+{
+ int i;
+ struct global_queue **gl = qedf->global_queues;
+
+ for (i = 0; i < qedf->num_queues; i++) {
+ if (!gl[i])
+ continue;
+
+ if (gl[i]->cq)
+ dma_free_coherent(&qedf->pdev->dev,
+ gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
+ if (gl[i]->cq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
+ gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
+
+ kfree(gl[i]);
+ }
+
+ qedf_free_bdq(qedf);
+}
+
+static int qedf_alloc_bdq(struct qedf_ctx *qedf)
+{
+ int i;
+ struct scsi_bd *pbl;
+ u64 *list;
+ dma_addr_t page;
+
+ /* Alloc dma memory for BDQ buffers */
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
+ if (!qedf->bdq[i].buf_addr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
+ "buffer %d.\n", i);
+ return -ENOMEM;
+ }
+ }
+
+ /* Alloc dma memory for BDQ page buffer list */
+ qedf->bdq_pbl_mem_size =
+ QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
+ qedf->bdq_pbl_mem_size =
+ ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
+
+ qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
+ if (!qedf->bdq_pbl) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
+ return -ENOMEM;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "BDQ PBL addr=0x%p dma=0x%llx.\n", qedf->bdq_pbl,
+ qedf->bdq_pbl_dma);
+
+ /*
+ * Populate BDQ PBL with physical and virtual address of individual
+ * BDQ buffers
+ */
+ pbl = (struct scsi_bd *)qedf->bdq_pbl;
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
+ pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
+ pbl->opaque.hi = 0;
+ /* Opaque lo data is an index into the BDQ array */
+ pbl->opaque.lo = cpu_to_le32(i);
+ pbl++;
+ }
+
+ /* Allocate list of PBL pages */
+ qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_PAGE_SIZE, &qedf->bdq_pbl_list_dma, GFP_KERNEL);
+ if (!qedf->bdq_pbl_list) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL "
+ "pages.\n");
+ return -ENOMEM;
+ }
+ memset(qedf->bdq_pbl_list, 0, QEDF_PAGE_SIZE);
+
+ /*
+ * Now populate PBL list with pages that contain pointers to the
+ * individual buffers.
+ */
+ qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
+ QEDF_PAGE_SIZE;
+ list = (u64 *)qedf->bdq_pbl_list;
+ page = qedf->bdq_pbl_list_dma;
+ for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
+ *list = qedf->bdq_pbl_dma;
+ list++;
+ page += QEDF_PAGE_SIZE;
+ }
+
+ return 0;
+}
+
+static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
+{
+ u32 *list;
+ int i;
+ int status = 0, rc;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ /* Allocate and map CQs, RQs */
+ /*
+ * Number of global queues (CQ / RQ). This should
+ * be <= number of available MSIX vectors for the PF
+ */
+ if (!qedf->num_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
+ return 1;
+ }
+
+ /*
+ * Make sure we allocated the PBL that will contain the physical
+ * addresses of our queues
+ */
+ if (!qedf->p_cpuq) {
+ status = 1;
+ goto mem_alloc_failure;
+ }
+
+ qedf->global_queues = kzalloc((sizeof(struct global_queue *)
+ * qedf->num_queues), GFP_KERNEL);
+ if (!qedf->global_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
+ "queues array ptr memory\n");
+ return -ENOMEM;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "qedf->global_queues=%p.\n", qedf->global_queues);
+
+ /* Allocate DMA coherent buffers for BDQ */
+ rc = qedf_alloc_bdq(qedf);
+ if (rc)
+ goto mem_alloc_failure;
+
+ /* Allocate a CQ and an associated PBL for each MSI-X vector */
+ for (i = 0; i < qedf->num_queues; i++) {
+ qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
+ GFP_KERNEL);
+ if (!qedf->global_queues[i]) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocation "
+ "global queue %d.\n", i);
+ goto mem_alloc_failure;
+ }
+
+ qedf->global_queues[i]->cq_mem_size =
+ FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
+ qedf->global_queues[i]->cq_mem_size =
+ ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
+
+ qedf->global_queues[i]->cq_pbl_size =
+ (qedf->global_queues[i]->cq_mem_size /
+ PAGE_SIZE) * sizeof(void *);
+ qedf->global_queues[i]->cq_pbl_size =
+ ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
+
+ qedf->global_queues[i]->cq =
+ dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->global_queues[i]->cq_mem_size,
+ &qedf->global_queues[i]->cq_dma, GFP_KERNEL);
+
+ if (!qedf->global_queues[i]->cq) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "cq.\n");
+ status = -ENOMEM;
+ goto mem_alloc_failure;
+ }
+ memset(qedf->global_queues[i]->cq, 0,
+ qedf->global_queues[i]->cq_mem_size);
+
+ qedf->global_queues[i]->cq_pbl =
+ dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->global_queues[i]->cq_pbl_size,
+ &qedf->global_queues[i]->cq_pbl_dma, GFP_KERNEL);
+
+ if (!qedf->global_queues[i]->cq_pbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "cq PBL.\n");
+ status = -ENOMEM;
+ goto mem_alloc_failure;
+ }
+ memset(qedf->global_queues[i]->cq_pbl, 0,
+ qedf->global_queues[i]->cq_pbl_size);
+
+ /* Create PBL */
+ num_pages = qedf->global_queues[i]->cq_mem_size /
+ QEDF_PAGE_SIZE;
+ page = qedf->global_queues[i]->cq_dma;
+ pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
+
+ while (num_pages--) {
+ *pbl = U64_LO(page);
+ pbl++;
+ *pbl = U64_HI(page);
+ pbl++;
+ page += QEDF_PAGE_SIZE;
+ }
+ /* Set the initial consumer index for cq */
+ qedf->global_queues[i]->cq_cons_idx = 0;
+ }
+
+ list = (u32 *)qedf->p_cpuq;
+
+ /*
+ * The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer,
+ * CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points
+ * to the physical address which contains an array of pointers to
+ * the physical addresses of the specific queue pages.
+ */
+ for (i = 0; i < qedf->num_queues; i++) {
+ *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
+ list++;
+ *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
+ list++;
+ *list = U64_LO(0);
+ list++;
+ *list = U64_HI(0);
+ list++;
+ }
+
+ return 0;
+
+mem_alloc_failure:
+ qedf_free_global_queues(qedf);
+ return status;
+}
+
+static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
+{
+ u8 sq_num_pbl_pages;
+ u32 sq_mem_size;
+ u32 cq_mem_size;
+ u32 cq_num_entries;
+ int rval;
+
+ /*
+ * The number of completion queues/fastpath interrupts/status blocks
+ * we allocation is the minimum off:
+ *
+ * Number of CPUs
+ * Number of MSI-X vectors
+ * Max number allocated in hardware (QEDF_MAX_NUM_CQS)
+ */
+ qedf->num_queues = min((unsigned int)QEDF_MAX_NUM_CQS,
+ num_online_cpus());
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
+ qedf->num_queues);
+
+ qedf->p_cpuq = pci_alloc_consistent(qedf->pdev,
+ qedf->num_queues * sizeof(struct qedf_glbl_q_params),
+ &qedf->hw_p_cpuq);
+
+ if (!qedf->p_cpuq) {
+ QEDF_ERR(&(qedf->dbg_ctx), "pci_alloc_consistent failed.\n");
+ return 1;
+ }
+
+ rval = qedf_alloc_global_queues(qedf);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
+ "failed.\n");
+ return 1;
+ }
+
+ /* Calculate SQ PBL size in the same manner as in qedf_sq_alloc() */
+ sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
+ sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
+ sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
+
+ /* Calculate CQ num entries */
+ cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
+ cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
+ cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
+
+ memset(&(qedf->pf_params), 0,
+ sizeof(qedf->pf_params));
+
+ /* Setup the value for fcoe PF */
+ qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
+ qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
+ qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
+ (u64)qedf->hw_p_cpuq;
+ qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
+
+ qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
+
+ qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
+ qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
+
+ /* log_page_size: 12 for 4KB pages */
+ qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
+
+ qedf->pf_params.fcoe_pf_params.mtu = 9000;
+ qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
+ qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
+
+ /* BDQ address and size */
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
+ qedf->bdq_pbl_list_dma;
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
+ qedf->bdq_pbl_list_num_entries;
+ qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
+ qedf->bdq_pbl_list,
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "cq_num_entries=%d.\n",
+ qedf->pf_params.fcoe_pf_params.cq_num_entries);
+
+ return 0;
+}
+
+/* Free DMA coherent memory for array of queue pointers we pass to qed */
+static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
+{
+ size_t size = 0;
+
+ if (qedf->p_cpuq) {
+ size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
+ pci_free_consistent(qedf->pdev, size, qedf->p_cpuq,
+ qedf->hw_p_cpuq);
+ }
+
+ qedf_free_global_queues(qedf);
+
+ if (qedf->global_queues)
+ kfree(qedf->global_queues);
+}
+
+/*
+ * PCI driver functions
+ */
+
+static const struct pci_device_id qedf_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
+
+static struct pci_driver qedf_pci_driver = {
+ .name = QEDF_MODULE_NAME,
+ .id_table = qedf_pci_tbl,
+ .probe = qedf_probe,
+ .remove = qedf_remove,
+};
+
+static int __qedf_probe(struct pci_dev *pdev, int mode)
+{
+ int rc = -EINVAL;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ struct Scsi_Host *host;
+ bool is_vf = false;
+ struct qed_ll2_params params;
+ char host_buf[20];
+ struct qed_link_params link_params;
+ int status;
+ void *task_start, *task_end;
+ struct qed_slowpath_params slowpath_params;
+ struct qed_probe_params qed_params;
+ u16 tmp;
+
+ /*
+ * When doing error recovery we didn't reap the lport so don't try
+ * to reallocate it.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ lport = libfc_host_alloc(&qedf_host_template,
+ sizeof(struct qedf_ctx));
+
+ if (!lport) {
+ QEDF_ERR(NULL, "Could not allocate lport.\n");
+ rc = -ENOMEM;
+ goto err0;
+ }
+
+ /* Initialize qedf_ctx */
+ qedf = lport_priv(lport);
+ qedf->lport = lport;
+ qedf->ctlr.lp = lport;
+ qedf->pdev = pdev;
+ qedf->dbg_ctx.pdev = pdev;
+ qedf->dbg_ctx.host_no = lport->host->host_no;
+ spin_lock_init(&qedf->hba_lock);
+ INIT_LIST_HEAD(&qedf->fcports);
+ qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
+ atomic_set(&qedf->num_offloads, 0);
+ qedf->stop_io_on_error = false;
+ pci_set_drvdata(pdev, qedf);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
+ "QLogic FastLinQ FCoE Module qedf %s, "
+ "FW %d.%d.%d.%d\n", QEDF_VERSION,
+ FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
+ FW_ENGINEERING_VERSION);
+ } else {
+ /* Init pointers during recovery */
+ qedf = pci_get_drvdata(pdev);
+ lport = qedf->lport;
+ }
+
+ host = lport->host;
+
+ /* Allocate mempool for qedf_io_work structs */
+ qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
+ qedf_io_work_cache);
+ if (qedf->io_mempool == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
+ goto err1;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
+ qedf->io_mempool);
+
+ sprintf(host_buf, "qedf_%u_link",
+ qedf->lport->host->host_no);
+ qedf->link_update_wq = create_singlethread_workqueue(host_buf);
+ INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
+ INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
+
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+
+ /*
+ * Common probe. Takes care of basic hardware init and pci_*
+ * functions.
+ */
+ memset(&qed_params, 0, sizeof(qed_params));
+ qed_params.protocol = QED_PROTOCOL_FCOE;
+ qed_params.dp_module = qedf_dp_module;
+ qed_params.dp_level = qedf_dp_level;
+ qed_params.is_vf = is_vf;
+ qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
+ if (!qedf->cdev) {
+ rc = -ENODEV;
+ goto err1;
+ }
+
+ /* queue allocation code should come here
+ * order should be
+ * slowpath_start
+ * status block allocation
+ * interrupt registration (to get min number of queues)
+ * set_fcoe_pf_param
+ * qed_sp_fcoe_func_start
+ */
+ rc = qedf_set_fcoe_pf_param(qedf);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
+ goto err2;
+ }
+ qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
+
+ /* Learn information crucial for qedf to progress */
+ rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
+ goto err1;
+ }
+
+ /* Record BDQ producer doorbell addresses */
+ qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
+ qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
+ qedf->bdq_secondary_prod);
+
+ qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
+
+ rc = qedf_prepare_sb(qedf);
+ if (rc) {
+
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
+ goto err2;
+ }
+
+ /* Start the Slowpath-process */
+ slowpath_params.int_mode = QED_INT_MODE_MSIX;
+ slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
+ slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
+ slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
+ slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
+ memcpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
+ rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
+ goto err2;
+ }
+
+ /*
+ * update_pf_params needs to be called before and after slowpath
+ * start
+ */
+ qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
+
+ /* Setup interrupts */
+ rc = qedf_setup_int(qedf);
+ if (rc)
+ goto err3;
+
+ rc = qed_ops->start(qedf->cdev, &qedf->tasks);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
+ goto err4;
+ }
+ task_start = qedf_get_task_mem(&qedf->tasks, 0);
+ task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
+ "end=%p block_size=%u.\n", task_start, task_end,
+ qedf->tasks.size);
+
+ /*
+ * We need to write the number of BDs in the BDQ we've preallocated so
+ * the f/w will do a prefetch and we'll get an unsolicited CQE when a
+ * packet arrives.
+ */
+ qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Writing %d to primary and secondary BDQ doorbell registers.\n",
+ qedf->bdq_prod_idx);
+ writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
+ tmp = readw(qedf->bdq_primary_prod);
+ writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
+ tmp = readw(qedf->bdq_secondary_prod);
+
+ qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
+
+ /* Now that the dev_info struct has been filled in set the MAC
+ * address
+ */
+ ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
+ qedf->mac);
+
+ /* Set the WWNN and WWPN based on the MAC address */
+ qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
+ qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
+ "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
+
+ sprintf(host_buf, "host_%d", host->host_no);
+ qed_ops->common->set_id(qedf->cdev, host_buf, QEDF_VERSION);
+
+
+ /* Set xid max values */
+ qedf->max_scsi_xid = QEDF_MAX_SCSI_XID;
+ qedf->max_els_xid = QEDF_MAX_ELS_XID;
+
+ /* Allocate cmd mgr */
+ qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
+ if (!qedf->cmd_mgr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
+ goto err5;
+ }
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ host->transportt = qedf_fc_transport_template;
+ host->can_queue = QEDF_MAX_ELS_XID;
+ host->max_lun = qedf_max_lun;
+ host->max_cmd_len = QEDF_MAX_CDB_LEN;
+ rc = scsi_add_host(host, &pdev->dev);
+ if (rc)
+ goto err6;
+ }
+
+ memset(&params, 0, sizeof(params));
+ params.mtu = 9000;
+ ether_addr_copy(params.ll2_mac_address, qedf->mac);
+
+ /* Start LL2 processing thread */
+ snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
+ qedf->ll2_recv_wq =
+ create_singlethread_workqueue(host_buf);
+ if (!qedf->ll2_recv_wq) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
+ goto err7;
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_init(&(qedf->dbg_ctx), &qedf_debugfs_ops,
+ &qedf_dbg_fops);
+#endif
+
+ /* Start LL2 */
+ qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
+ rc = qed_ops->ll2->start(qedf->cdev, &params);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
+ goto err7;
+ }
+ set_bit(QEDF_LL2_STARTED, &qedf->flags);
+
+ /* hw will be insterting vlan tag*/
+ qedf->vlan_hw_insert = 1;
+ qedf->vlan_id = 0;
+
+ /*
+ * No need to setup fcoe_ctlr or fc_lport objects during recovery since
+ * they were not reaped during the unload process.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ /* Setup imbedded fcoe controller */
+ qedf_fcoe_ctlr_setup(qedf);
+
+ /* Setup lport */
+ rc = qedf_lport_setup(qedf);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "qedf_lport_setup failed.\n");
+ goto err7;
+ }
+ }
+
+ sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
+ qedf->timer_work_queue =
+ create_singlethread_workqueue(host_buf);
+ if (!qedf->timer_work_queue) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
+ "workqueue.\n");
+ goto err7;
+ }
+
+ /* DPC workqueue is not reaped during recovery unload */
+ if (mode != QEDF_MODE_RECOVERY) {
+ sprintf(host_buf, "qedf_%u_dpc",
+ qedf->lport->host->host_no);
+ qedf->dpc_wq = create_singlethread_workqueue(host_buf);
+ }
+
+ /*
+ * GRC dump and sysfs parameters are not reaped during the recovery
+ * unload process.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ qedf->grcdump_size = qed_ops->common->dbg_grc_size(qedf->cdev);
+ if (qedf->grcdump_size) {
+ rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
+ qedf->grcdump_size);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "GRC Dump buffer alloc failed.\n");
+ qedf->grcdump = NULL;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "grcdump: addr=%p, size=%u.\n",
+ qedf->grcdump, qedf->grcdump_size);
+ }
+ qedf_create_sysfs_ctx_attr(qedf);
+
+ /* Initialize I/O tracing for this adapter */
+ spin_lock_init(&qedf->io_trace_lock);
+ qedf->io_trace_idx = 0;
+ }
+
+ init_completion(&qedf->flogi_compl);
+
+ memset(&link_params, 0, sizeof(struct qed_link_params));
+ link_params.link_up = true;
+ status = qed_ops->common->set_link(qedf->cdev, &link_params);
+ if (status)
+ QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
+
+ /* Start/restart discovery */
+ if (mode == QEDF_MODE_RECOVERY)
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ else
+ fc_fabric_login(lport);
+
+ /* All good */
+ return 0;
+
+err7:
+ if (qedf->ll2_recv_wq)
+ destroy_workqueue(qedf->ll2_recv_wq);
+ fc_remove_host(qedf->lport->host);
+ scsi_remove_host(qedf->lport->host);
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_exit(&(qedf->dbg_ctx));
+#endif
+err6:
+ qedf_cmd_mgr_free(qedf->cmd_mgr);
+err5:
+ qed_ops->stop(qedf->cdev);
+err4:
+ qedf_free_fcoe_pf_param(qedf);
+ qedf_sync_free_irqs(qedf);
+err3:
+ qed_ops->common->slowpath_stop(qedf->cdev);
+err2:
+ qed_ops->common->remove(qedf->cdev);
+err1:
+ scsi_host_put(lport->host);
+err0:
+ return rc;
+}
+
+static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ return __qedf_probe(pdev, QEDF_MODE_NORMAL);
+}
+
+static void __qedf_remove(struct pci_dev *pdev, int mode)
+{
+ struct qedf_ctx *qedf;
+
+ if (!pdev) {
+ QEDF_ERR(NULL, "pdev is NULL.\n");
+ return;
+ }
+
+ qedf = pci_get_drvdata(pdev);
+
+ /*
+ * Prevent race where we're in board disable work and then try to
+ * rmmod the module.
+ */
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
+ return;
+ }
+
+ if (mode != QEDF_MODE_RECOVERY)
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+
+ /* Logoff the fabric to upload all connections */
+ if (mode == QEDF_MODE_RECOVERY)
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ else
+ fc_fabric_logoff(qedf->lport);
+ qedf_wait_for_upload(qedf);
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_exit(&(qedf->dbg_ctx));
+#endif
+
+ /* Stop any link update handling */
+ cancel_delayed_work_sync(&qedf->link_update);
+ destroy_workqueue(qedf->link_update_wq);
+ qedf->link_update_wq = NULL;
+
+ if (qedf->timer_work_queue)
+ destroy_workqueue(qedf->timer_work_queue);
+
+ /* Stop Light L2 */
+ clear_bit(QEDF_LL2_STARTED, &qedf->flags);
+ qed_ops->ll2->stop(qedf->cdev);
+ if (qedf->ll2_recv_wq)
+ destroy_workqueue(qedf->ll2_recv_wq);
+
+ /* Stop fastpath */
+ qedf_sync_free_irqs(qedf);
+ qedf_destroy_sb(qedf);
+
+ /*
+ * During recovery don't destroy OS constructs that represent the
+ * physical port.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ qedf_free_grc_dump_buf(&qedf->grcdump);
+ qedf_remove_sysfs_ctx_attr(qedf);
+
+ /* Remove all SCSI/libfc/libfcoe structures */
+ fcoe_ctlr_destroy(&qedf->ctlr);
+ fc_lport_destroy(qedf->lport);
+ fc_remove_host(qedf->lport->host);
+ scsi_remove_host(qedf->lport->host);
+ }
+
+ qedf_cmd_mgr_free(qedf->cmd_mgr);
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ fc_exch_mgr_free(qedf->lport);
+ fc_lport_free_stats(qedf->lport);
+
+ /* Wait for all vports to be reaped */
+ qedf_wait_for_vport_destroy(qedf);
+ }
+
+ /*
+ * Now that all connections have been uploaded we can stop the
+ * rest of the qed operations
+ */
+ qed_ops->stop(qedf->cdev);
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ if (qedf->dpc_wq) {
+ /* Stop general DPC handling */
+ destroy_workqueue(qedf->dpc_wq);
+ qedf->dpc_wq = NULL;
+ }
+ }
+
+ /* Final shutdown for the board */
+ qedf_free_fcoe_pf_param(qedf);
+ if (mode != QEDF_MODE_RECOVERY) {
+ qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
+ pci_set_drvdata(pdev, NULL);
+ }
+ qed_ops->common->slowpath_stop(qedf->cdev);
+ qed_ops->common->remove(qedf->cdev);
+
+ mempool_destroy(qedf->io_mempool);
+
+ /* Only reap the Scsi_host on a real removal */
+ if (mode != QEDF_MODE_RECOVERY)
+ scsi_host_put(qedf->lport->host);
+}
+
+static void qedf_remove(struct pci_dev *pdev)
+{
+ /* Check to make sure this function wasn't already disabled */
+ if (!atomic_read(&pdev->enable_cnt))
+ return;
+
+ __qedf_remove(pdev, QEDF_MODE_NORMAL);
+}
+
+/*
+ * Module Init/Remove
+ */
+
+static int __init qedf_init(void)
+{
+ int ret;
+
+ /* If debug=1 passed, set the default log mask */
+ if (qedf_debug == QEDF_LOG_DEFAULT)
+ qedf_debug = QEDF_DEFAULT_LOG_MASK;
+
+ /* Print driver banner */
+ QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
+ QEDF_VERSION);
+
+ /* Create kmem_cache for qedf_io_work structs */
+ qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
+ sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (qedf_io_work_cache == NULL) {
+ QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
+ goto err1;
+ }
+ QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
+ qedf_io_work_cache);
+
+ qed_ops = qed_get_fcoe_ops();
+ if (!qed_ops) {
+ QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
+ goto err1;
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_init("qedf");
+#endif
+
+ qedf_fc_transport_template =
+ fc_attach_transport(&qedf_fc_transport_fn);
+ if (!qedf_fc_transport_template) {
+ QEDF_ERR(NULL, "Could not register with FC transport\n");
+ goto err2;
+ }
+
+ qedf_fc_vport_transport_template =
+ fc_attach_transport(&qedf_fc_vport_transport_fn);
+ if (!qedf_fc_vport_transport_template) {
+ QEDF_ERR(NULL, "Could not register vport template with FC "
+ "transport\n");
+ goto err3;
+ }
+
+ qedf_io_wq = create_workqueue("qedf_io_wq");
+ if (!qedf_io_wq) {
+ QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
+ goto err4;
+ }
+
+ qedf_cb_ops.get_login_failures = qedf_get_login_failures;
+
+ ret = pci_register_driver(&qedf_pci_driver);
+ if (ret) {
+ QEDF_ERR(NULL, "Failed to register driver\n");
+ goto err5;
+ }
+
+ return 0;
+
+err5:
+ destroy_workqueue(qedf_io_wq);
+err4:
+ fc_release_transport(qedf_fc_vport_transport_template);
+err3:
+ fc_release_transport(qedf_fc_transport_template);
+err2:
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_exit();
+#endif
+ qed_put_fcoe_ops();
+err1:
+ return -EINVAL;
+}
+
+static void __exit qedf_cleanup(void)
+{
+ pci_unregister_driver(&qedf_pci_driver);
+
+ destroy_workqueue(qedf_io_wq);
+
+ fc_release_transport(qedf_fc_vport_transport_template);
+ fc_release_transport(qedf_fc_transport_template);
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_exit();
+#endif
+ qed_put_fcoe_ops();
+
+ kmem_cache_destroy(qedf_io_work_cache);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("QLogic QEDF 25/40/50/100Gb FCoE Driver");
+MODULE_AUTHOR("QLogic Corporation");
+MODULE_VERSION(QEDF_VERSION);
+module_init(qedf_init);
+module_exit(qedf_cleanup);
diff --git a/drivers/scsi/qedf/qedf_version.h b/drivers/scsi/qedf/qedf_version.h
new file mode 100644
index 0000000..4ae5f53
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_version.h
@@ -0,0 +1,15 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#define QEDF_VERSION "8.10.7.0"
+#define QEDF_DRIVER_MAJOR_VER 8
+#define QEDF_DRIVER_MINOR_VER 10
+#define QEDF_DRIVER_REV_VER 7
+#define QEDF_DRIVER_ENG_VER 0
+
--
1.8.5.6
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