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-rw-r--r--drivers/scsi/qedf/Kconfig2
-rw-r--r--drivers/scsi/qedf/qedf.h6
-rw-r--r--drivers/scsi/qedf/qedf_els.c10
-rw-r--r--drivers/scsi/qedf/qedf_fip.c2
-rw-r--r--drivers/scsi/qedf/qedf_io.c48
-rw-r--r--drivers/scsi/qedf/qedf_main.c135
6 files changed, 179 insertions, 24 deletions
diff --git a/drivers/scsi/qedf/Kconfig b/drivers/scsi/qedf/Kconfig
index 7cd993be4e57..eb81a1b0374a 100644
--- a/drivers/scsi/qedf/Kconfig
+++ b/drivers/scsi/qedf/Kconfig
@@ -7,6 +7,6 @@ config QEDF
depends on LIBFCOE
select QED_LL2
select QED_FCOE
- ---help---
+ help
This driver supports FCoE offload for the QLogic FastLinQ
41000 Series Converged Network Adapters.
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
index f3f399fe10c8..e163be8af965 100644
--- a/drivers/scsi/qedf/qedf.h
+++ b/drivers/scsi/qedf/qedf.h
@@ -355,6 +355,7 @@ struct qedf_ctx {
#define QEDF_GRCDUMP_CAPTURE 4
#define QEDF_IN_RECOVERY 5
#define QEDF_DBG_STOP_IO 6
+#define QEDF_PROBING 8
unsigned long flags; /* Miscellaneous state flags */
int fipvlan_retries;
u8 num_queues;
@@ -387,7 +388,9 @@ struct qedf_ctx {
#define QEDF_IO_WORK_MIN 64
mempool_t *io_mempool;
struct workqueue_struct *dpc_wq;
+ struct delayed_work recovery_work;
struct delayed_work grcdump_work;
+ struct delayed_work stag_work;
u32 slow_sge_ios;
u32 fast_sge_ios;
@@ -403,6 +406,7 @@ struct qedf_ctx {
u32 flogi_cnt;
u32 flogi_failed;
+ u32 flogi_pending;
/* Used for fc statistics */
struct mutex stats_mutex;
@@ -468,7 +472,7 @@ 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 */
+#define QEDF_RETRY_DELAY_MAX 600 /* 60 seconds */
extern bool qedf_retry_delay;
extern uint qedf_debug;
diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c
index 87e169dcebdb..542ba9454257 100644
--- a/drivers/scsi/qedf/qedf_els.c
+++ b/drivers/scsi/qedf/qedf_els.c
@@ -388,14 +388,10 @@ void qedf_restart_rport(struct qedf_rport *fcport)
mutex_lock(&lport->disc.disc_mutex);
/* Recreate the rport and log back in */
rdata = fc_rport_create(lport, port_id);
- if (rdata) {
- mutex_unlock(&lport->disc.disc_mutex);
+ mutex_unlock(&lport->disc.disc_mutex);
+ if (rdata)
fc_rport_login(rdata);
- fcport->rdata = rdata;
- } else {
- mutex_unlock(&lport->disc.disc_mutex);
- fcport->rdata = NULL;
- }
+ fcport->rdata = rdata;
}
clear_bit(QEDF_RPORT_IN_RESET, &fcport->flags);
}
diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c
index bb82f0875eca..ad6a56ce72a8 100644
--- a/drivers/scsi/qedf/qedf_fip.c
+++ b/drivers/scsi/qedf/qedf_fip.c
@@ -20,7 +20,7 @@ void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
#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;
unsigned long flags = 0;
- int rc = -1;
+ int rc;
skb = dev_alloc_skb(sizeof(struct fip_vlan));
if (!skb) {
diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
index e749a2dcaad7..0f6a15c1a04b 100644
--- a/drivers/scsi/qedf/qedf_io.c
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -1021,14 +1021,18 @@ qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
atomic_inc(&fcport->ios_to_queue);
if (fcport->retry_delay_timestamp) {
+ /* Take fcport->rport_lock for resetting the delay_timestamp */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
if (time_after(jiffies, fcport->retry_delay_timestamp)) {
fcport->retry_delay_timestamp = 0;
} else {
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
/* If retry_delay timer is active, flow off the ML */
rc = SCSI_MLQUEUE_TARGET_BUSY;
atomic_dec(&fcport->ios_to_queue);
goto exit_qcmd;
}
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
}
io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
@@ -1134,6 +1138,8 @@ void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
int refcount;
u16 scope, qualifier = 0;
u8 fw_residual_flag = 0;
+ unsigned long flags = 0;
+ u16 chk_scope = 0;
if (!io_req)
return;
@@ -1267,16 +1273,8 @@ void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
/* 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 (qedf_retry_delay)
+ chk_scope = 1;
/* Record stats */
if (io_req->cdb_status ==
SAM_STAT_TASK_SET_FULL)
@@ -1287,6 +1285,36 @@ void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
}
if (io_req->fcp_resid)
scsi_set_resid(sc_cmd, io_req->fcp_resid);
+
+ if (chk_scope == 1) {
+ if ((scope == 1 || scope == 2) &&
+ (qualifier > 0 && qualifier <= 0x3FEF)) {
+ /* Check we don't go over the max */
+ if (qualifier > QEDF_RETRY_DELAY_MAX) {
+ qualifier = QEDF_RETRY_DELAY_MAX;
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_IO,
+ "qualifier = %d\n",
+ (fcp_rsp->retry_delay_timer &
+ 0x3FFF));
+ }
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_IO,
+ "Scope = %d and qualifier = %d",
+ scope, qualifier);
+ /* Take fcport->rport_lock to
+ * update the retry_delay_timestamp
+ */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ fcport->retry_delay_timestamp =
+ jiffies + (qualifier * HZ / 10);
+ spin_unlock_irqrestore(&fcport->rport_lock,
+ flags);
+
+ } else {
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_IO,
+ "combination of scope = %d and qualifier = %d is not handled in qedf.\n",
+ scope, qualifier);
+ }
+ }
break;
default:
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "fcp_status=%d.\n",
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 5b19f5175c5c..36b1ca2dadbb 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -28,6 +28,8 @@ 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);
static void qedf_shutdown(struct pci_dev *pdev);
+static void qedf_schedule_recovery_handler(void *dev);
+static void qedf_recovery_handler(struct work_struct *work);
/*
* Driver module parameters.
@@ -282,6 +284,7 @@ static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
else if (fc_frame_payload_op(fp) == ELS_LS_ACC) {
/* Set the source MAC we will use for FCoE traffic */
qedf_set_data_src_addr(qedf, fp);
+ qedf->flogi_pending = 0;
}
/* Complete flogi_compl so we can proceed to sending ADISCs */
@@ -307,6 +310,11 @@ static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
*/
if (resp == fc_lport_flogi_resp) {
qedf->flogi_cnt++;
+ if (qedf->flogi_pending >= QEDF_FLOGI_RETRY_CNT) {
+ schedule_delayed_work(&qedf->stag_work, 2);
+ return NULL;
+ }
+ qedf->flogi_pending++;
return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
arg, timeout);
}
@@ -503,6 +511,32 @@ static void qedf_update_link_speed(struct qedf_ctx *qedf,
fc_host_supported_speeds(lport->host) = lport->link_supported_speeds;
}
+static void qedf_bw_update(void *dev)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+ struct qed_link_output link;
+
+ /* Get the latest status of the link */
+ qed_ops->common->get_link(qedf->cdev, &link);
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ QEDF_ERR(&qedf->dbg_ctx,
+ "Ignore link update, driver getting unload.\n");
+ return;
+ }
+
+ if (link.link_up) {
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
+ qedf_update_link_speed(qedf, &link);
+ else
+ QEDF_ERR(&qedf->dbg_ctx,
+ "Ignore bw update, link is down.\n");
+
+ } else {
+ QEDF_ERR(&qedf->dbg_ctx, "link_up is not set.\n");
+ }
+}
+
static void qedf_link_update(void *dev, struct qed_link_output *link)
{
struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
@@ -629,6 +663,8 @@ static u32 qedf_get_login_failures(void *cookie)
static struct qed_fcoe_cb_ops qedf_cb_ops = {
{
.link_update = qedf_link_update,
+ .bw_update = qedf_bw_update,
+ .schedule_recovery_handler = qedf_schedule_recovery_handler,
.dcbx_aen = qedf_dcbx_handler,
.get_generic_tlv_data = qedf_get_generic_tlv_data,
.get_protocol_tlv_data = qedf_get_protocol_tlv_data,
@@ -850,6 +886,7 @@ void qedf_ctx_soft_reset(struct fc_lport *lport)
qedf = lport_priv(lport);
+ qedf->flogi_pending = 0;
/* For host reset, essentially do a soft link up/down */
atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
@@ -3153,7 +3190,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
{
int rc = -EINVAL;
struct fc_lport *lport;
- struct qedf_ctx *qedf;
+ struct qedf_ctx *qedf = NULL;
struct Scsi_Host *host;
bool is_vf = false;
struct qed_ll2_params params;
@@ -3183,6 +3220,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
/* Initialize qedf_ctx */
qedf = lport_priv(lport);
+ set_bit(QEDF_PROBING, &qedf->flags);
qedf->lport = lport;
qedf->ctlr.lp = lport;
qedf->pdev = pdev;
@@ -3197,6 +3235,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
init_completion(&qedf->fipvlan_compl);
mutex_init(&qedf->stats_mutex);
mutex_init(&qedf->flush_mutex);
+ qedf->flogi_pending = 0;
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
"QLogic FastLinQ FCoE Module qedf %s, "
@@ -3206,9 +3245,12 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
} else {
/* Init pointers during recovery */
qedf = pci_get_drvdata(pdev);
+ set_bit(QEDF_PROBING, &qedf->flags);
lport = qedf->lport;
}
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe started.\n");
+
host = lport->host;
/* Allocate mempool for qedf_io_work structs */
@@ -3227,6 +3269,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump);
+ INIT_DELAYED_WORK(&qedf->stag_work, qedf_stag_change_work);
qedf->fipvlan_retries = qedf_fipvlan_retries;
/* Set a default prio in case DCBX doesn't converge */
if (qedf_default_prio > -1) {
@@ -3281,6 +3324,13 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
}
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 fill dev info.\n");
+ goto err2;
+ }
+
/* 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;
@@ -3466,6 +3516,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
qedf->lport->host->host_no);
qedf->dpc_wq = create_workqueue(host_buf);
}
+ INIT_DELAYED_WORK(&qedf->recovery_work, qedf_recovery_handler);
/*
* GRC dump and sysfs parameters are not reaped during the recovery
@@ -3513,6 +3564,10 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
else
fc_fabric_login(lport);
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
+
+ clear_bit(QEDF_PROBING, &qedf->flags);
+
/* All good */
return 0;
@@ -3538,6 +3593,11 @@ err2:
err1:
scsi_host_put(lport->host);
err0:
+ if (qedf) {
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
+
+ clear_bit(QEDF_PROBING, &qedf->flags);
+ }
return rc;
}
@@ -3687,11 +3747,25 @@ void qedf_get_protocol_tlv_data(void *dev, void *data)
{
struct qedf_ctx *qedf = dev;
struct qed_mfw_tlv_fcoe *fcoe = data;
- struct fc_lport *lport = qedf->lport;
- struct Scsi_Host *host = lport->host;
- struct fc_host_attrs *fc_host = shost_to_fc_host(host);
+ struct fc_lport *lport;
+ struct Scsi_Host *host;
+ struct fc_host_attrs *fc_host;
struct fc_host_statistics *hst;
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is null.\n");
+ return;
+ }
+
+ if (test_bit(QEDF_PROBING, &qedf->flags)) {
+ QEDF_ERR(&qedf->dbg_ctx, "Function is still probing.\n");
+ return;
+ }
+
+ lport = qedf->lport;
+ host = lport->host;
+ fc_host = shost_to_fc_host(host);
+
/* Force a refresh of the fc_host stats including offload stats */
hst = qedf_fc_get_host_stats(host);
@@ -3762,11 +3836,64 @@ void qedf_get_protocol_tlv_data(void *dev, void *data)
fcoe->scsi_tsk_full = qedf->task_set_fulls;
}
+/* Deferred work function to perform soft context reset on STAG change */
+void qedf_stag_change_work(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, stag_work.work);
+
+ if (!qedf) {
+ QEDF_ERR(&qedf->dbg_ctx, "qedf is NULL");
+ return;
+ }
+ QEDF_ERR(&qedf->dbg_ctx, "Performing software context reset.\n");
+ qedf_ctx_soft_reset(qedf->lport);
+}
+
static void qedf_shutdown(struct pci_dev *pdev)
{
__qedf_remove(pdev, QEDF_MODE_NORMAL);
}
+/*
+ * Recovery handler code
+ */
+static void qedf_schedule_recovery_handler(void *dev)
+{
+ struct qedf_ctx *qedf = dev;
+
+ QEDF_ERR(&qedf->dbg_ctx, "Recovery handler scheduled.\n");
+ schedule_delayed_work(&qedf->recovery_work, 0);
+}
+
+static void qedf_recovery_handler(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, recovery_work.work);
+
+ if (test_and_set_bit(QEDF_IN_RECOVERY, &qedf->flags))
+ return;
+
+ /*
+ * Call common_ops->recovery_prolog to allow the MFW to quiesce
+ * any PCI transactions.
+ */
+ qed_ops->common->recovery_prolog(qedf->cdev);
+
+ QEDF_ERR(&qedf->dbg_ctx, "Recovery work start.\n");
+ __qedf_remove(qedf->pdev, QEDF_MODE_RECOVERY);
+ /*
+ * Reset link and dcbx to down state since we will not get a link down
+ * event from the MFW but calling __qedf_remove will essentially be a
+ * link down event.
+ */
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ __qedf_probe(qedf->pdev, QEDF_MODE_RECOVERY);
+ clear_bit(QEDF_IN_RECOVERY, &qedf->flags);
+ QEDF_ERR(&qedf->dbg_ctx, "Recovery work complete.\n");
+}
+
/* Generic TLV data callback */
void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
{
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-27 06:01:25 +0100