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-rw-r--r--drivers/scsi/lpfc/lpfc.h2
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c45
-rw-r--r--drivers/scsi/lpfc/lpfc_debugfs.c20
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c19
4 files changed, 66 insertions, 20 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 6c0d351c0d0d..be4abe52f289 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -64,8 +64,6 @@ struct lpfc_sli2_slim;
#define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
#define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
#define LPFC_VNAME_LEN 100 /* vport symbolic name length */
-#define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
- queue depth change in millisecs */
#define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
#define LPFC_MIN_TGT_QDEPTH 10
#define LPFC_MAX_TGT_QDEPTH 0xFFFF
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 2ac1d21c553f..c89ffad1f43d 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3469,8 +3469,49 @@ LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
# tgt_queue_depth: This parameter is used to limit the number of outstanding
# commands per target port. Value range is [10,65535]. Default value is 65535.
*/
-LPFC_VPORT_ATTR_RW(tgt_queue_depth, 65535, 10, 65535,
- "Max number of FCP commands we can queue to a specific target port");
+static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH;
+module_param(lpfc_tgt_queue_depth, uint, 0444);
+MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth");
+lpfc_vport_param_show(tgt_queue_depth);
+lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH,
+ LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH);
+
+/**
+ * lpfc_tgt_queue_depth_store: Sets an attribute value.
+ * @phba: pointer the the adapter structure.
+ * @val: integer attribute value.
+ *
+ * Description: Sets the parameter to the new value.
+ *
+ * Returns:
+ * zero on success
+ * -EINVAL if val is invalid
+ */
+static int
+lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+
+ if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH))
+ return -EINVAL;
+
+ if (val == vport->cfg_tgt_queue_depth)
+ return 0;
+
+ spin_lock_irq(shost->host_lock);
+ vport->cfg_tgt_queue_depth = val;
+
+ /* Next loop thru nodelist and change cmd_qdepth */
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
+ ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
+
+ spin_unlock_irq(shost->host_lock);
+ return 0;
+}
+
+lpfc_vport_param_store(tgt_queue_depth);
+static DEVICE_ATTR_RW(lpfc_tgt_queue_depth);
/*
# hba_queue_depth: This parameter is used to limit the number of outstanding
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index fb0dc2aeed91..50c11acf73a8 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -544,7 +544,7 @@ static int
lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
{
int len = 0;
- int cnt;
+ int i, iocnt, outio, cnt;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
@@ -554,10 +554,12 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
struct nvme_fc_remote_port *nrport;
cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
+ outio = 0;
len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ iocnt = 0;
if (!cnt) {
len += snprintf(buf+len, size-len,
"Missing Nodelist Entries\n");
@@ -585,9 +587,11 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
break;
case NLP_STE_UNMAPPED_NODE:
statep = "UNMAP ";
+ iocnt = 1;
break;
case NLP_STE_MAPPED_NODE:
statep = "MAPPED";
+ iocnt = 1;
break;
case NLP_STE_NPR_NODE:
statep = "NPR ";
@@ -614,8 +618,10 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
if (ndlp->nlp_type & NLP_FC_NODE)
len += snprintf(buf+len, size-len, "FC_NODE ");
- if (ndlp->nlp_type & NLP_FABRIC)
+ if (ndlp->nlp_type & NLP_FABRIC) {
len += snprintf(buf+len, size-len, "FABRIC ");
+ iocnt = 0;
+ }
if (ndlp->nlp_type & NLP_FCP_TARGET)
len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
ndlp->nlp_sid);
@@ -632,10 +638,20 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
ndlp->nlp_usg_map);
len += snprintf(buf+len, size-len, "refcnt:%x",
kref_read(&ndlp->kref));
+ if (iocnt) {
+ i = atomic_read(&ndlp->cmd_pending);
+ len += snprintf(buf + len, size - len,
+ " OutIO:x%x Qdepth x%x",
+ i, ndlp->cmd_qdepth);
+ outio += i;
+ }
len += snprintf(buf+len, size-len, "\n");
}
spin_unlock_irq(shost->host_lock);
+ len += snprintf(buf + len, size - len,
+ "\nOutstanding IO x%x\n", outio);
+
if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
len += snprintf(buf + len, size - len,
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 050f04418f5f..8570486013f3 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3983,9 +3983,6 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
}
#endif
- if (pnode && NLP_CHK_NODE_ACT(pnode))
- atomic_dec(&pnode->cmd_pending);
-
if (lpfc_cmd->status) {
if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT &&
(lpfc_cmd->result & IOERR_DRVR_MASK))
@@ -4125,6 +4122,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
spin_lock_irqsave(shost->host_lock, flags);
if (pnode && NLP_CHK_NODE_ACT(pnode)) {
+ atomic_dec(&pnode->cmd_pending);
if (pnode->cmd_qdepth >
atomic_read(&pnode->cmd_pending) &&
(atomic_read(&pnode->cmd_pending) >
@@ -4138,16 +4136,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
}
spin_unlock_irqrestore(shost->host_lock, flags);
} else if (pnode && NLP_CHK_NODE_ACT(pnode)) {
- if ((pnode->cmd_qdepth != vport->cfg_tgt_queue_depth) &&
- time_after(jiffies, pnode->last_change_time +
- msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) {
- spin_lock_irqsave(shost->host_lock, flags);
- pnode->cmd_qdepth = vport->cfg_tgt_queue_depth;
- pnode->last_change_time = jiffies;
- spin_unlock_irqrestore(shost->host_lock, flags);
- }
+ atomic_dec(&pnode->cmd_pending);
}
-
lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
spin_lock_irqsave(&phba->hbalock, flags);
@@ -4591,6 +4581,8 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
ndlp->nlp_portname.u.wwn[7]);
goto out_tgt_busy;
}
+ atomic_inc(&ndlp->cmd_pending);
+
lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp);
if (lpfc_cmd == NULL) {
lpfc_rampdown_queue_depth(phba);
@@ -4643,11 +4635,9 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp);
- atomic_inc(&ndlp->cmd_pending);
err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING,
&lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB);
if (err) {
- atomic_dec(&ndlp->cmd_pending);
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"3376 FCP could not issue IOCB err %x"
"FCP cmd x%x <%d/%llu> "
@@ -4691,6 +4681,7 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
lpfc_release_scsi_buf(phba, lpfc_cmd);
out_host_busy:
+ atomic_dec(&ndlp->cmd_pending);
return SCSI_MLQUEUE_HOST_BUSY;
out_tgt_busy:
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.