@@ -466,6 +466,7 @@ static inline be_id_t port_id_to_be_id(port_id_t port_id)
}
struct tmf_arg {
+ struct list_head tmf_elem;
struct qla_qpair *qpair;
struct fc_port *fcport;
struct scsi_qla_host *vha;
@@ -2541,7 +2542,6 @@ enum rscn_addr_format {
typedef struct fc_port {
struct list_head list;
struct scsi_qla_host *vha;
- struct list_head tmf_pending;
unsigned int conf_compl_supported:1;
unsigned int deleted:2;
@@ -2562,9 +2562,6 @@ typedef struct fc_port {
unsigned int do_prli_nvme:1;
uint8_t nvme_flag;
- uint8_t active_tmf;
-#define MAX_ACTIVE_TMF 8
-
uint8_t node_name[WWN_SIZE];
uint8_t port_name[WWN_SIZE];
port_id_t d_id;
@@ -4656,6 +4653,8 @@ struct qla_hw_data {
uint32_t flt_region_aux_img_status_sec;
};
uint8_t active_image;
+ uint8_t active_tmf;
+#define MAX_ACTIVE_TMF 8
/* Needed for BEACON */
uint16_t beacon_blink_led;
@@ -4670,6 +4669,8 @@ struct qla_hw_data {
struct qla_msix_entry *msix_entries;
+ struct list_head tmf_pending;
+ struct list_head tmf_active;
struct list_head vp_list; /* list of VP */
unsigned long vp_idx_map[(MAX_MULTI_ID_FABRIC / 8) /
sizeof(unsigned long)];
@@ -2192,30 +2192,42 @@ __qla2x00_async_tm_cmd(struct tmf_arg *arg)
return rval;
}
-static void qla_put_tmf(fc_port_t *fcport)
+static void qla_put_tmf(struct tmf_arg *arg)
{
- struct scsi_qla_host *vha = fcport->vha;
+ struct scsi_qla_host *vha = arg->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
- fcport->active_tmf--;
+ ha->active_tmf--;
+ list_del(&arg->tmf_elem);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
static
-int qla_get_tmf(fc_port_t *fcport)
+int qla_get_tmf(struct tmf_arg *arg)
{
- struct scsi_qla_host *vha = fcport->vha;
+ struct scsi_qla_host *vha = arg->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
+ fc_port_t *fcport = arg->fcport;
int rc = 0;
- LIST_HEAD(tmf_elem);
+ struct tmf_arg *t;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
- list_add_tail(&tmf_elem, &fcport->tmf_pending);
+ list_for_each_entry(t, &ha->tmf_active, tmf_elem) {
+ if (t->fcport == arg->fcport && t->lun == arg->lun) {
+ /* reject duplicate TMF */
+ ql_log(ql_log_warn, vha, 0x802c,
+ "found duplicate TMF. Nexus=%ld:%06x:%llu.\n",
+ vha->host_no, fcport->d_id.b24, arg->lun);
+ spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
+ return -EINVAL;
+ }
+ }
- while (fcport->active_tmf >= MAX_ACTIVE_TMF) {
+ list_add_tail(&arg->tmf_elem, &ha->tmf_pending);
+ while (ha->active_tmf >= MAX_ACTIVE_TMF) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
msleep(1);
@@ -2227,15 +2239,17 @@ int qla_get_tmf(fc_port_t *fcport)
rc = EIO;
break;
}
- if (fcport->active_tmf < MAX_ACTIVE_TMF &&
- list_is_first(&tmf_elem, &fcport->tmf_pending))
+ if (ha->active_tmf < MAX_ACTIVE_TMF &&
+ list_is_first(&arg->tmf_elem, &ha->tmf_pending))
break;
}
- list_del(&tmf_elem);
+ list_del(&arg->tmf_elem);
- if (!rc)
- fcport->active_tmf++;
+ if (!rc) {
+ ha->active_tmf++;
+ list_add_tail(&arg->tmf_elem, &ha->tmf_active);
+ }
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
@@ -2257,15 +2271,18 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
a.vha = fcport->vha;
a.fcport = fcport;
a.lun = lun;
+ a.flags = flags;
+ INIT_LIST_HEAD(&a.tmf_elem);
+
if (flags & (TCF_LUN_RESET|TCF_ABORT_TASK_SET|TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) {
a.modifier = MK_SYNC_ID_LUN;
-
- if (qla_get_tmf(fcport))
- return QLA_FUNCTION_FAILED;
} else {
a.modifier = MK_SYNC_ID;
}
+ if (qla_get_tmf(&a))
+ return QLA_FUNCTION_FAILED;
+
if (vha->hw->mqenable) {
for (i = 0; i < vha->hw->num_qpairs; i++) {
qpair = vha->hw->queue_pair_map[i];
@@ -2291,13 +2308,10 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
goto bailout;
a.qpair = vha->hw->base_qpair;
- a.flags = flags;
rval = __qla2x00_async_tm_cmd(&a);
bailout:
- if (a.modifier == MK_SYNC_ID_LUN)
- qla_put_tmf(fcport);
-
+ qla_put_tmf(&a);
return rval;
}
@@ -5526,7 +5540,6 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
INIT_LIST_HEAD(&fcport->gnl_entry);
INIT_LIST_HEAD(&fcport->list);
- INIT_LIST_HEAD(&fcport->tmf_pending);
INIT_LIST_HEAD(&fcport->sess_cmd_list);
spin_lock_init(&fcport->sess_cmd_lock);
@@ -3009,6 +3009,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
atomic_set(&ha->num_pend_mbx_stage3, 0);
atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
+ INIT_LIST_HEAD(&ha->tmf_pending);
+ INIT_LIST_HEAD(&ha->tmf_active);
/* Assign ISP specific operations. */
if (IS_QLA2100(ha)) {