@@ -5275,11 +5275,12 @@ LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
/*
* lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds
* range is [0,1]. Default value is 0.
- * For [0], FCP commands are issued to Work Queues ina round robin fashion.
+ * For [0], FCP commands are issued to Work Queues based on upper layer
+ * hardware queue index.
* For [1], FCP commands are issued to a Work Queue associated with the
* current CPU.
*
- * LPFC_FCP_SCHED_ROUND_ROBIN == 0
+ * LPFC_FCP_SCHED_BY_HDWQ == 0
* LPFC_FCP_SCHED_BY_CPU == 1
*
* The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu
@@ -5287,11 +5288,11 @@ LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
* CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os
* through WQs will be used.
*/
-LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_ROUND_ROBIN,
- LPFC_FCP_SCHED_ROUND_ROBIN,
+LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_HDWQ,
+ LPFC_FCP_SCHED_BY_HDWQ,
LPFC_FCP_SCHED_BY_CPU,
"Determine scheduling algorithm for "
- "issuing commands [0] - Round Robin, [1] - Current CPU");
+ "issuing commands [0] - Hardware Queue, [1] - Current CPU");
/*
* lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN
@@ -194,7 +194,7 @@ struct lpfc_sli_intf {
#define LPFC_ACT_INTR_CNT 4
/* Algrithmns for scheduling FCP commands to WQs */
-#define LPFC_FCP_SCHED_ROUND_ROBIN 0
+#define LPFC_FCP_SCHED_BY_HDWQ 0
#define LPFC_FCP_SCHED_BY_CPU 1
/* Algrithmns for NameServer Query after RSCN */
@@ -1546,8 +1546,17 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
}
}
- lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp,
- lpfc_queue_info->index, expedite);
+ if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) {
+ idx = lpfc_queue_info->index;
+ } else {
+ cpu = smp_processor_id();
+ if (cpu < phba->cfg_hdw_queue)
+ idx = cpu;
+ else
+ idx = cpu % phba->cfg_hdw_queue;
+ }
+
+ lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp, idx, expedite);
if (lpfc_ncmd == NULL) {
atomic_inc(&lport->xmt_fcp_noxri);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
@@ -1585,7 +1594,6 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
* index to use and that they have affinitized a CPU to this hardware
* queue. A hardware queue maps to a driver MSI-X vector/EQ/CQ/WQ.
*/
- idx = lpfc_queue_info->index;
lpfc_ncmd->cur_iocbq.hba_wqidx = idx;
cstat = &phba->sli4_hba.hdwq[idx].nvme_cstat;
@@ -689,7 +689,8 @@ lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
cpu = smp_processor_id();
if (cmnd && shost_use_blk_mq(cmnd->device->host) &&
- phba->cfg_enable_scsi_mq) {
+ phba->cfg_enable_scsi_mq &&
+ (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ)) {
tag = blk_mq_unique_tag(cmnd->request);
idx = blk_mq_unique_tag_to_hwq(tag);
} else {
@@ -14107,7 +14107,7 @@ lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
/* Save EQ associated with this CQ */
cq->assoc_qp = phba->sli4_hba.hdwq[qidx].hba_eq;
- if (!queue_work(phba->wq, &cq->irqwork))
+ if (!queue_work_on(cq->chann, phba->wq, &cq->irqwork))
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0363 Cannot schedule soft IRQ "
"for CQ eqcqid=%d, cqid=%d on CPU %d\n",