return;
}
+static void
+lpfc_hb_eq_delay_work(struct work_struct *work)
+{
+ struct lpfc_hba *phba = container_of(to_delayed_work(work),
+ struct lpfc_hba, eq_delay_work);
+ struct lpfc_eq_intr_info *eqi, *eqi_new;
+ struct lpfc_queue *eq, *eq_next;
+ unsigned char *eqcnt = NULL;
+ uint32_t usdelay;
+ int i;
+
+ if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
+ return;
+
+ if (phba->link_state == LPFC_HBA_ERROR ||
+ phba->pport->fc_flag & FC_OFFLINE_MODE)
+ goto requeue;
+
+ eqcnt = kcalloc(num_possible_cpus(), sizeof(unsigned char),
+ GFP_KERNEL);
+ if (!eqcnt)
+ goto requeue;
+
+ for (i = 0; i < phba->cfg_irq_chann; i++) {
+ eq = phba->sli4_hba.hdwq[i].hba_eq;
+ if (eq && eqcnt[eq->last_cpu] < 2)
+ eqcnt[eq->last_cpu]++;
+ continue;
+ }
+
+ for_each_present_cpu(i) {
+ if (phba->cfg_irq_chann > 1 && eqcnt[i] < 2)
+ continue;
+
+ eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
+
+ usdelay = (eqi->icnt / LPFC_IMAX_THRESHOLD) *
+ LPFC_EQ_DELAY_STEP;
+ if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
+ usdelay = LPFC_MAX_AUTO_EQ_DELAY;
+
+ eqi->icnt = 0;
+
+ list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
+ if (eq->last_cpu != i) {
+ eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
+ eq->last_cpu);
+ list_move_tail(&eq->cpu_list, &eqi_new->list);
+ continue;
+ }
+ if (usdelay != eq->q_mode)
+ lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
+ usdelay);
+ }
+ }
+
+ kfree(eqcnt);
+
+requeue:
+ queue_delayed_work(phba->wq, &phba->eq_delay_work,
+ msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
+}
+
/**
* lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
* @phba: pointer to lpfc hba data structure.
int retval, i;
struct lpfc_sli *psli = &phba->sli;
LIST_HEAD(completions);
- struct lpfc_queue *qp;
- unsigned long time_elapsed;
- uint32_t tick_cqe, max_cqe, val;
- uint64_t tot, data1, data2, data3;
- struct lpfc_nvmet_tgtport *tgtp;
- struct lpfc_register reg_data;
- struct nvme_fc_local_port *localport;
- struct lpfc_nvme_lport *lport;
- struct lpfc_fc4_ctrl_stat *cstat;
- void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
if (phba->cfg_xri_rebalancing) {
/* Multi-XRI pools handler */
(phba->pport->fc_flag & FC_OFFLINE_MODE))
return;
- if (phba->cfg_auto_imax) {
- if (!phba->last_eqdelay_time) {
- phba->last_eqdelay_time = jiffies;
- goto skip_eqdelay;
- }
- time_elapsed = jiffies - phba->last_eqdelay_time;
- phba->last_eqdelay_time = jiffies;
-
- tot = 0xffff;
- /* Check outstanding IO count */
- if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
- if (phba->nvmet_support) {
- tgtp = phba->targetport->private;
- /* Calculate outstanding IOs */
- tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
- tot += atomic_read(&tgtp->xmt_fcp_release);
- tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
- } else {
- localport = phba->pport->localport;
- if (!localport || !localport->private)
- goto skip_eqdelay;
- lport = (struct lpfc_nvme_lport *)
- localport->private;
- tot = 0;
- for (i = 0;
- i < phba->cfg_hdw_queue; i++) {
- cstat =
- &phba->sli4_hba.hdwq[i].nvme_cstat;
- data1 = cstat->input_requests;
- data2 = cstat->output_requests;
- data3 = cstat->control_requests;
- tot += (data1 + data2 + data3);
- tot -= cstat->io_cmpls;
- }
- }
- }
-
- /* Interrupts per sec per EQ */
- val = phba->cfg_fcp_imax / phba->cfg_irq_chann;
- tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
-
- /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
- max_cqe = time_elapsed * tick_cqe;
-
- for (i = 0; i < phba->cfg_irq_chann; i++) {
- /* Fast-path EQ */
- qp = phba->sli4_hba.hdwq[i].hba_eq;
- if (!qp)
- continue;
-
- /* Use no EQ delay if we don't have many outstanding
- * IOs, or if we are only processing 1 CQE/ISR or less.
- * Otherwise, assume we can process up to lpfc_fcp_imax
- * interrupts per HBA.
- */
- if (tot < LPFC_NODELAY_MAX_IO ||
- qp->EQ_cqe_cnt <= max_cqe)
- val = 0;
- else
- val = phba->cfg_fcp_imax;
-
- if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
- /* Use EQ Delay Register method */
-
- /* Convert for EQ Delay register */
- if (val) {
- /* First, interrupts per sec per EQ */
- val = phba->cfg_fcp_imax /
- phba->cfg_irq_chann;
-
- /* us delay between each interrupt */
- val = LPFC_SEC_TO_USEC / val;
- }
- if (val != qp->q_mode) {
- reg_data.word0 = 0;
- bf_set(lpfc_sliport_eqdelay_id,
- ®_data, qp->queue_id);
- bf_set(lpfc_sliport_eqdelay_delay,
- ®_data, val);
- writel(reg_data.word0, eqdreg);
- }
- } else {
- /* Use mbox command method */
- if (val != qp->q_mode)
- lpfc_modify_hba_eq_delay(phba, i,
- 1, val);
- }
-
- /*
- * val is cfg_fcp_imax or 0 for mbox delay or us delay
- * between interrupts for EQDR.
- */
- qp->q_mode = val;
- qp->EQ_cqe_cnt = 0;
- }
- }
-
-skip_eqdelay:
spin_lock_irq(&phba->pport->work_port_lock);
if (time_after(phba->last_completion_time +
{
if (phba->pport)
lpfc_stop_vport_timers(phba->pport);
+ cancel_delayed_work_sync(&phba->eq_delay_work);
del_timer_sync(&phba->sli.mbox_tmo);
del_timer_sync(&phba->fabric_block_timer);
del_timer_sync(&phba->eratt_poll);
/* Heartbeat timer */
timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
+ INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
+
return 0;
}
goto out_free_hba_eq_hdl;
}
+ phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
+ if (!phba->sli4_hba.eq_info) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3321 Failed allocation for per_cpu stats\n");
+ rc = -ENOMEM;
+ goto out_free_hba_cpu_map;
+ }
/*
* Enable sr-iov virtual functions if supported and configured
* through the module parameter.
return 0;
+out_free_hba_cpu_map:
+ kfree(phba->sli4_hba.cpu_map);
out_free_hba_eq_hdl:
kfree(phba->sli4_hba.hba_eq_hdl);
out_free_fcf_rr_bmask:
{
struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
+ free_percpu(phba->sli4_hba.eq_info);
+
/* Free memory allocated for msi-x interrupt vector to CPU mapping */
kfree(phba->sli4_hba.cpu_map);
phba->sli4_hba.num_present_cpu = 0;
struct lpfc_queue *qdesc;
int idx, eqidx;
struct lpfc_sli4_hdw_queue *qp;
+ struct lpfc_eq_intr_info *eqi;
/*
* Create HBA Record arrays.
qdesc->chann = lpfc_find_cpu_handle(phba, eqidx,
LPFC_FIND_BY_EQ);
phba->sli4_hba.hdwq[idx].hba_eq = qdesc;
+ qdesc->last_cpu = qdesc->chann;
+ eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
+ list_add(&qdesc->cpu_list, &eqi->list);
}
case LPFC_SLI_INTF_IF_TYPE_0:
case LPFC_SLI_INTF_IF_TYPE_2:
phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
- phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
- phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
+ phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
+ phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
break;
case LPFC_SLI_INTF_IF_TYPE_6:
phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
- phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
- phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
+ phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
+ phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
break;
default:
break;
cpup++;
}
+ for_each_possible_cpu(i) {
+ struct lpfc_eq_intr_info *eqi =
+ per_cpu_ptr(phba->sli4_hba.eq_info, i);
+
+ INIT_LIST_HEAD(&eqi->list);
+ eqi->icnt = 0;
+ }
+
/*
* If the number of IRQ vectors == number of CPUs,
* mapping is pretty simple: 1 to 1.
struct hbq_dmabuf *);
static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
struct hbq_dmabuf *dmabuf);
-static int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *,
- struct lpfc_cqe *);
+static bool lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba,
+ struct lpfc_queue *cq, struct lpfc_cqe *cqe);
static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
int);
static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
- struct lpfc_eqe *eqe, uint32_t qidx);
+ struct lpfc_queue *eq,
+ struct lpfc_eqe *eqe);
static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
static int lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba,
}
q->WQ_posted++;
/* set consumption flag every once in a while */
- if (!((q->host_index + 1) % q->entry_repost))
+ if (!((q->host_index + 1) % q->notify_interval))
bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
else
bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
static struct lpfc_eqe *
lpfc_sli4_eq_get(struct lpfc_queue *q)
{
- struct lpfc_hba *phba;
struct lpfc_eqe *eqe;
- uint32_t idx;
/* sanity check on queue memory */
if (unlikely(!q))
return NULL;
- phba = q->phba;
- eqe = q->qe[q->hba_index].eqe;
+ eqe = q->qe[q->host_index].eqe;
/* If the next EQE is not valid then we are done */
if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
return NULL;
- /* If the host has not yet processed the next entry then we are done */
- idx = ((q->hba_index + 1) % q->entry_count);
- if (idx == q->host_index)
- return NULL;
-
- q->hba_index = idx;
- /* if the index wrapped around, toggle the valid bit */
- if (phba->sli4_hba.pc_sli4_params.eqav && !q->hba_index)
- q->qe_valid = (q->qe_valid) ? 0 : 1;
-
/*
* insert barrier for instruction interlock : data from the hardware
}
/**
- * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
+ * lpfc_sli4_write_eq_db - write EQ DB for eqe's consumed or arm state
+ * @phba: adapter with EQ
* @q: The Event Queue that the host has completed processing for.
+ * @count: Number of elements that have been consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
- * This routine will mark all Event Queue Entries on @q, from the last
- * known completed entry to the last entry that was processed, as completed
- * by clearing the valid bit for each completion queue entry. Then it will
- * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
- * The internal host index in the @q will be updated by this routine to indicate
- * that the host has finished processing the entries. The @arm parameter
- * indicates that the queue should be rearmed when ringing the doorbell.
- *
- * This function will return the number of EQEs that were popped.
+ * This routine will notify the HBA, by ringing the doorbell, that count
+ * number of EQEs have been processed. The @arm parameter indicates whether
+ * the queue should be rearmed when ringing the doorbell.
**/
-uint32_t
-lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
+void
+lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
+ uint32_t count, bool arm)
{
- uint32_t released = 0;
- struct lpfc_hba *phba;
- struct lpfc_eqe *temp_eqe;
struct lpfc_register doorbell;
/* sanity check on queue memory */
- if (unlikely(!q))
- return 0;
- phba = q->phba;
-
- /* while there are valid entries */
- while (q->hba_index != q->host_index) {
- if (!phba->sli4_hba.pc_sli4_params.eqav) {
- temp_eqe = q->qe[q->host_index].eqe;
- bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
- }
- released++;
- q->host_index = ((q->host_index + 1) % q->entry_count);
- }
- if (unlikely(released == 0 && !arm))
- return 0;
+ if (unlikely(!q || (count == 0 && !arm)))
+ return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
}
- bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
+ bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
(q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
/* PCI read to flush PCI pipeline on re-arming for INTx mode */
if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
readl(q->phba->sli4_hba.EQDBregaddr);
- return released;
}
/**
- * lpfc_sli4_if6_eq_release - Indicates the host has finished processing an EQ
+ * lpfc_sli4_if6_write_eq_db - write EQ DB for eqe's consumed or arm state
+ * @phba: adapter with EQ
* @q: The Event Queue that the host has completed processing for.
+ * @count: Number of elements that have been consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
- * This routine will mark all Event Queue Entries on @q, from the last
- * known completed entry to the last entry that was processed, as completed
- * by clearing the valid bit for each completion queue entry. Then it will
- * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
- * The internal host index in the @q will be updated by this routine to indicate
- * that the host has finished processing the entries. The @arm parameter
- * indicates that the queue should be rearmed when ringing the doorbell.
- *
- * This function will return the number of EQEs that were popped.
+ * This routine will notify the HBA, by ringing the doorbell, that count
+ * number of EQEs have been processed. The @arm parameter indicates whether
+ * the queue should be rearmed when ringing the doorbell.
**/
-uint32_t
-lpfc_sli4_if6_eq_release(struct lpfc_queue *q, bool arm)
+void
+lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
+ uint32_t count, bool arm)
{
- uint32_t released = 0;
- struct lpfc_hba *phba;
- struct lpfc_eqe *temp_eqe;
struct lpfc_register doorbell;
/* sanity check on queue memory */
- if (unlikely(!q))
- return 0;
- phba = q->phba;
-
- /* while there are valid entries */
- while (q->hba_index != q->host_index) {
- if (!phba->sli4_hba.pc_sli4_params.eqav) {
- temp_eqe = q->qe[q->host_index].eqe;
- bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
- }
- released++;
- q->host_index = ((q->host_index + 1) % q->entry_count);
- }
- if (unlikely(released == 0 && !arm))
- return 0;
+ if (unlikely(!q || (count == 0 && !arm)))
+ return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm)
bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
- bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, released);
+ bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
/* PCI read to flush PCI pipeline on re-arming for INTx mode */
if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
readl(q->phba->sli4_hba.EQDBregaddr);
- return released;
+}
+
+static void
+__lpfc_sli4_consume_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
+ struct lpfc_eqe *eqe)
+{
+ if (!phba->sli4_hba.pc_sli4_params.eqav)
+ bf_set_le32(lpfc_eqe_valid, eqe, 0);
+
+ eq->host_index = ((eq->host_index + 1) % eq->entry_count);
+
+ /* if the index wrapped around, toggle the valid bit */
+ if (phba->sli4_hba.pc_sli4_params.eqav && !eq->host_index)
+ eq->qe_valid = (eq->qe_valid) ? 0 : 1;
+}
+
+static void
+lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
+{
+ struct lpfc_eqe *eqe;
+ uint32_t count = 0;
+
+ /* walk all the EQ entries and drop on the floor */
+ eqe = lpfc_sli4_eq_get(eq);
+ while (eqe) {
+ __lpfc_sli4_consume_eqe(phba, eq, eqe);
+ count++;
+ eqe = lpfc_sli4_eq_get(eq);
+ }
+
+ /* Clear and re-arm the EQ */
+ phba->sli4_hba.sli4_write_eq_db(phba, eq, count, LPFC_QUEUE_REARM);
+}
+
+static int
+lpfc_sli4_process_eq(struct lpfc_hba *phba, struct lpfc_queue *eq)
+{
+ struct lpfc_eqe *eqe;
+ int count = 0, consumed = 0;
+
+ if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
+ goto rearm_and_exit;
+
+ eqe = lpfc_sli4_eq_get(eq);
+ while (eqe) {
+ lpfc_sli4_hba_handle_eqe(phba, eq, eqe);
+ __lpfc_sli4_consume_eqe(phba, eq, eqe);
+
+ consumed++;
+ if (!(++count % eq->max_proc_limit))
+ break;
+
+ if (!(count % eq->notify_interval)) {
+ phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
+ LPFC_QUEUE_NOARM);
+ consumed = 0;
+ }
+
+ eqe = lpfc_sli4_eq_get(eq);
+ }
+ eq->EQ_processed += count;
+
+ /* Track the max number of EQEs processed in 1 intr */
+ if (count > eq->EQ_max_eqe)
+ eq->EQ_max_eqe = count;
+
+ eq->queue_claimed = 0;
+
+rearm_and_exit:
+ /* Always clear and re-arm the EQ */
+ phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, LPFC_QUEUE_REARM);
+
+ return count;
}
/**
static struct lpfc_cqe *
lpfc_sli4_cq_get(struct lpfc_queue *q)
{
- struct lpfc_hba *phba;
struct lpfc_cqe *cqe;
- uint32_t idx;
/* sanity check on queue memory */
if (unlikely(!q))
return NULL;
- phba = q->phba;
- cqe = q->qe[q->hba_index].cqe;
+ cqe = q->qe[q->host_index].cqe;
/* If the next CQE is not valid then we are done */
if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
return NULL;
- /* If the host has not yet processed the next entry then we are done */
- idx = ((q->hba_index + 1) % q->entry_count);
- if (idx == q->host_index)
- return NULL;
-
- q->hba_index = idx;
- /* if the index wrapped around, toggle the valid bit */
- if (phba->sli4_hba.pc_sli4_params.cqav && !q->hba_index)
- q->qe_valid = (q->qe_valid) ? 0 : 1;
/*
* insert barrier for instruction interlock : data from the hardware
return cqe;
}
+static void
+__lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ struct lpfc_cqe *cqe)
+{
+ if (!phba->sli4_hba.pc_sli4_params.cqav)
+ bf_set_le32(lpfc_cqe_valid, cqe, 0);
+
+ cq->host_index = ((cq->host_index + 1) % cq->entry_count);
+
+ /* if the index wrapped around, toggle the valid bit */
+ if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
+ cq->qe_valid = (cq->qe_valid) ? 0 : 1;
+}
+
/**
- * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
+ * lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
+ * @phba: the adapter with the CQ
* @q: The Completion Queue that the host has completed processing for.
+ * @count: the number of elements that were consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
- * This routine will mark all Completion queue entries on @q, from the last
- * known completed entry to the last entry that was processed, as completed
- * by clearing the valid bit for each completion queue entry. Then it will
- * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
- * The internal host index in the @q will be updated by this routine to indicate
- * that the host has finished processing the entries. The @arm parameter
- * indicates that the queue should be rearmed when ringing the doorbell.
- *
- * This function will return the number of CQEs that were released.
+ * This routine will notify the HBA, by ringing the doorbell, that the
+ * CQEs have been processed. The @arm parameter specifies whether the
+ * queue should be rearmed when ringing the doorbell.
**/
-uint32_t
-lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
+void
+lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
+ uint32_t count, bool arm)
{
- uint32_t released = 0;
- struct lpfc_hba *phba;
- struct lpfc_cqe *temp_qe;
struct lpfc_register doorbell;
/* sanity check on queue memory */
- if (unlikely(!q))
- return 0;
- phba = q->phba;
-
- /* while there are valid entries */
- while (q->hba_index != q->host_index) {
- if (!phba->sli4_hba.pc_sli4_params.cqav) {
- temp_qe = q->qe[q->host_index].cqe;
- bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
- }
- released++;
- q->host_index = ((q->host_index + 1) % q->entry_count);
- }
- if (unlikely(released == 0 && !arm))
- return 0;
+ if (unlikely(!q || (count == 0 && !arm)))
+ return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm)
bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
- bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
+ bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
(q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
- return released;
}
/**
- * lpfc_sli4_if6_cq_release - Indicates the host has finished processing a CQ
+ * lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
+ * @phba: the adapter with the CQ
* @q: The Completion Queue that the host has completed processing for.
+ * @count: the number of elements that were consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
- * This routine will mark all Completion queue entries on @q, from the last
- * known completed entry to the last entry that was processed, as completed
- * by clearing the valid bit for each completion queue entry. Then it will
- * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
- * The internal host index in the @q will be updated by this routine to indicate
- * that the host has finished processing the entries. The @arm parameter
- * indicates that the queue should be rearmed when ringing the doorbell.
- *
- * This function will return the number of CQEs that were released.
+ * This routine will notify the HBA, by ringing the doorbell, that the
+ * CQEs have been processed. The @arm parameter specifies whether the
+ * queue should be rearmed when ringing the doorbell.
**/
-uint32_t
-lpfc_sli4_if6_cq_release(struct lpfc_queue *q, bool arm)
+void
+lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
+ uint32_t count, bool arm)
{
- uint32_t released = 0;
- struct lpfc_hba *phba;
- struct lpfc_cqe *temp_qe;
struct lpfc_register doorbell;
/* sanity check on queue memory */
- if (unlikely(!q))
- return 0;
- phba = q->phba;
-
- /* while there are valid entries */
- while (q->hba_index != q->host_index) {
- if (!phba->sli4_hba.pc_sli4_params.cqav) {
- temp_qe = q->qe[q->host_index].cqe;
- bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
- }
- released++;
- q->host_index = ((q->host_index + 1) % q->entry_count);
- }
- if (unlikely(released == 0 && !arm))
- return 0;
+ if (unlikely(!q || (count == 0 && !arm)))
+ return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm)
bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
- bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, released);
+ bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
- return released;
}
/**
hq->RQ_buf_posted++;
/* Ring The Header Receive Queue Doorbell */
- if (!(hq->host_index % hq->entry_repost)) {
+ if (!(hq->host_index % hq->notify_interval)) {
doorbell.word0 = 0;
if (hq->db_format == LPFC_DB_RING_FORMAT) {
bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
- hq->entry_repost);
+ hq->notify_interval);
bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
} else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
- hq->entry_repost);
+ hq->notify_interval);
bf_set(lpfc_rq_db_list_fm_index, &doorbell,
hq->host_index);
bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
struct lpfc_sli4_hdw_queue *qp;
- sli4_hba->sli4_cq_release(sli4_hba->mbx_cq, LPFC_QUEUE_REARM);
- sli4_hba->sli4_cq_release(sli4_hba->els_cq, LPFC_QUEUE_REARM);
+ sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
+ sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
if (sli4_hba->nvmels_cq)
- sli4_hba->sli4_cq_release(sli4_hba->nvmels_cq,
- LPFC_QUEUE_REARM);
+ sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
+ LPFC_QUEUE_REARM);
qp = sli4_hba->hdwq;
if (sli4_hba->hdwq) {
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
- sli4_hba->sli4_cq_release(qp[qidx].fcp_cq,
- LPFC_QUEUE_REARM);
- sli4_hba->sli4_cq_release(qp[qidx].nvme_cq,
- LPFC_QUEUE_REARM);
+ sli4_hba->sli4_write_cq_db(phba, qp[qidx].fcp_cq, 0,
+ LPFC_QUEUE_REARM);
+ sli4_hba->sli4_write_cq_db(phba, qp[qidx].nvme_cq, 0,
+ LPFC_QUEUE_REARM);
}
for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++)
- sli4_hba->sli4_eq_release(qp[qidx].hba_eq,
- LPFC_QUEUE_REARM);
+ sli4_hba->sli4_write_eq_db(phba, qp[qidx].hba_eq,
+ 0, LPFC_QUEUE_REARM);
}
if (phba->nvmet_support) {
for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
- sli4_hba->sli4_cq_release(
- sli4_hba->nvmet_cqset[qidx],
+ sli4_hba->sli4_write_cq_db(phba,
+ sli4_hba->nvmet_cqset[qidx], 0,
LPFC_QUEUE_REARM);
}
}
phba->hb_outstanding = 0;
phba->last_completion_time = jiffies;
+ /* start eq_delay heartbeat */
+ if (phba->cfg_auto_imax)
+ queue_delayed_work(phba->wq, &phba->eq_delay_work,
+ msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
+
/* Start error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll,
jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
uint32_t eqidx;
struct lpfc_queue *fpeq = NULL;
- struct lpfc_eqe *eqe;
bool mbox_pending;
if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
*/
if (mbox_pending)
- while ((eqe = lpfc_sli4_eq_get(fpeq))) {
- lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
- fpeq->EQ_processed++;
- }
-
- /* Always clear and re-arm the EQ */
-
- sli4_hba->sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
+ /* process and rearm the EQ */
+ lpfc_sli4_process_eq(phba, fpeq);
+ else
+ /* Always clear and re-arm the EQ */
+ sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
return mbox_pending;
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
-lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
+lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ struct lpfc_cqe *cqe)
{
struct lpfc_mcqe mcqe;
bool workposted;
+ cq->CQ_mbox++;
+
/* Copy the mailbox MCQE and convert endian order as needed */
lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
* lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
* @phba: Pointer to HBA context object.
* @cq: Pointer to the completion queue.
- * @wcqe: Pointer to a completion queue entry.
+ * @cqe: Pointer to a completion queue entry.
*
* This routine process a slow-path work-queue or receive queue completion queue
* entry.
}
/**
- * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
+ * __lpfc_sli4_process_cq - Process elements of a CQ
* @phba: Pointer to HBA context object.
+ * @cq: Pointer to CQ to be processed
+ * @handler: Routine to process each cqe
+ * @delay: Pointer to usdelay to set in case of rescheduling of the handler
*
- * This routine process a event queue entry from the slow-path event queue.
- * It will check the MajorCode and MinorCode to determine this is for a
- * completion event on a completion queue, if not, an error shall be logged
- * and just return. Otherwise, it will get to the corresponding completion
- * queue and process all the entries on that completion queue, rearm the
- * completion queue, and then return.
+ * This routine processes completion queue entries in a CQ. While a valid
+ * queue element is found, the handler is called. During processing checks
+ * are made for periodic doorbell writes to let the hardware know of
+ * element consumption.
*
+ * If the max limit on cqes to process is hit, or there are no more valid
+ * entries, the loop stops. If we processed a sufficient number of elements,
+ * meaning there is sufficient load, rather than rearming and generating
+ * another interrupt, a cq rescheduling delay will be set. A delay of 0
+ * indicates no rescheduling.
+ *
+ * Returns True if work scheduled, False otherwise.
**/
-static void
-lpfc_sli4_sp_process_cq(struct work_struct *work)
+static bool
+__lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
+ struct lpfc_cqe *), unsigned long *delay)
{
- struct lpfc_queue *cq =
- container_of(work, struct lpfc_queue, spwork);
- struct lpfc_hba *phba = cq->phba;
struct lpfc_cqe *cqe;
bool workposted = false;
- int ccount = 0;
+ int count = 0, consumed = 0;
+ bool arm = true;
+
+ /* default - no reschedule */
+ *delay = 0;
+
+ if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
+ goto rearm_and_exit;
/* Process all the entries to the CQ */
+ cqe = lpfc_sli4_cq_get(cq);
+ while (cqe) {
+#if defined(CONFIG_SCSI_LPFC_DEBUG_FS) && defined(BUILD_NVME)
+ if (phba->ktime_on)
+ cq->isr_timestamp = ktime_get_ns();
+ else
+ cq->isr_timestamp = 0;
+#endif
+ workposted |= handler(phba, cq, cqe);
+ __lpfc_sli4_consume_cqe(phba, cq, cqe);
+
+ consumed++;
+ if (!(++count % cq->max_proc_limit))
+ break;
+
+ if (!(count % cq->notify_interval)) {
+ phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
+ LPFC_QUEUE_NOARM);
+ consumed = 0;
+ }
+
+ cqe = lpfc_sli4_cq_get(cq);
+ }
+ if (count >= phba->cfg_cq_poll_threshold) {
+ *delay = 1;
+ arm = false;
+ }
+
+ /* Track the max number of CQEs processed in 1 EQ */
+ if (count > cq->CQ_max_cqe)
+ cq->CQ_max_cqe = count;
+
+ cq->assoc_qp->EQ_cqe_cnt += count;
+
+ /* Catch the no cq entry condition */
+ if (unlikely(count == 0))
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "0369 No entry from completion queue "
+ "qid=%d\n", cq->queue_id);
+
+ cq->queue_claimed = 0;
+
+rearm_and_exit:
+ phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
+ arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
+
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
+ * @cq: pointer to CQ to process
+ *
+ * This routine calls the cq processing routine with a handler specific
+ * to the type of queue bound to it.
+ *
+ * The CQ routine returns two values: the first is the calling status,
+ * which indicates whether work was queued to the background discovery
+ * thread. If true, the routine should wakeup the discovery thread;
+ * the second is the delay parameter. If non-zero, rather than rearming
+ * the CQ and yet another interrupt, the CQ handler should be queued so
+ * that it is processed in a subsequent polling action. The value of
+ * the delay indicates when to reschedule it.
+ **/
+static void
+__lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
+{
+ struct lpfc_hba *phba = cq->phba;
+ unsigned long delay;
+ bool workposted = false;
+
+ /* Process and rearm the CQ */
switch (cq->type) {
case LPFC_MCQ:
- while ((cqe = lpfc_sli4_cq_get(cq))) {
- workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
- if (!(++ccount % cq->entry_repost))
- break;
- cq->CQ_mbox++;
- }
+ workposted |= __lpfc_sli4_process_cq(phba, cq,
+ lpfc_sli4_sp_handle_mcqe,
+ &delay);
break;
case LPFC_WCQ:
- while ((cqe = lpfc_sli4_cq_get(cq))) {
- if (cq->subtype == LPFC_FCP ||
- cq->subtype == LPFC_NVME) {
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
- if (phba->ktime_on)
- cq->isr_timestamp = ktime_get_ns();
- else
- cq->isr_timestamp = 0;
-#endif
- workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
- cqe);
- } else {
- workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
- cqe);
- }
- if (!(++ccount % cq->entry_repost))
- break;
- }
-
- /* Track the max number of CQEs processed in 1 EQ */
- if (ccount > cq->CQ_max_cqe)
- cq->CQ_max_cqe = ccount;
+ if (cq->subtype == LPFC_FCP || cq->subtype == LPFC_NVME)
+ workposted |= __lpfc_sli4_process_cq(phba, cq,
+ lpfc_sli4_fp_handle_cqe,
+ &delay);
+ else
+ workposted |= __lpfc_sli4_process_cq(phba, cq,
+ lpfc_sli4_sp_handle_cqe,
+ &delay);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
return;
}
- /* Catch the no cq entry condition, log an error */
- if (unlikely(ccount == 0))
- lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "0371 No entry from the CQ: identifier "
- "(x%x), type (%d)\n", cq->queue_id, cq->type);
-
- /* In any case, flash and re-arm the RCQ */
- phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
+ if (delay) {
+ if (!queue_delayed_work_on(cq->chann, phba->wq,
+ &cq->sched_spwork, delay))
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0394 Cannot schedule soft IRQ "
+ "for cqid=%d on CPU %d\n",
+ cq->queue_id, cq->chann);
+ }
/* wake up worker thread if there are works to be done */
if (workposted)
lpfc_worker_wake_up(phba);
}
+/**
+ * lpfc_sli4_sp_process_cq - slow-path work handler when started by
+ * interrupt
+ * @work: pointer to work element
+ *
+ * translates from the work handler and calls the slow-path handler.
+ **/
+static void
+lpfc_sli4_sp_process_cq(struct work_struct *work)
+{
+ struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
+
+ __lpfc_sli4_sp_process_cq(cq);
+}
+
+/**
+ * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
+ * @work: pointer to work element
+ *
+ * translates from the work handler and calls the slow-path handler.
+ **/
+static void
+lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
+{
+ struct lpfc_queue *cq = container_of(to_delayed_work(work),
+ struct lpfc_queue, sched_spwork);
+
+ __lpfc_sli4_sp_process_cq(cq);
+}
+
/**
* lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
* @phba: Pointer to HBA context object.
/**
* lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
+ * @phba: adapter with cq
* @cq: Pointer to the completion queue.
* @eqe: Pointer to fast-path completion queue entry.
*
* This routine process a fast-path work queue completion entry from fast-path
* event queue for FCP command response completion.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
**/
-static int
+static bool
lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_cqe *cqe)
{
* completion queue, and then return.
**/
static void
-lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
- uint32_t qidx)
+lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
+ struct lpfc_eqe *eqe)
{
struct lpfc_queue *cq = NULL;
+ uint32_t qidx = eq->hdwq;
uint16_t cqid, id;
if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
}
/**
- * lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
- * @phba: Pointer to HBA context object.
- * @eqe: Pointer to fast-path event queue entry.
+ * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
+ * @cq: Pointer to CQ to be processed
*
- * This routine process a event queue entry from the fast-path event queue.
- * It will check the MajorCode and MinorCode to determine this is for a
- * completion event on a completion queue, if not, an error shall be logged
- * and just return. Otherwise, it will get to the corresponding completion
- * queue and process all the entries on the completion queue, rearm the
- * completion queue, and then return.
+ * This routine calls the cq processing routine with the handler for
+ * fast path CQEs.
+ *
+ * The CQ routine returns two values: the first is the calling status,
+ * which indicates whether work was queued to the background discovery
+ * thread. If true, the routine should wakeup the discovery thread;
+ * the second is the delay parameter. If non-zero, rather than rearming
+ * the CQ and yet another interrupt, the CQ handler should be queued so
+ * that it is processed in a subsequent polling action. The value of
+ * the delay indicates when to reschedule it.
**/
static void
-lpfc_sli4_hba_process_cq(struct work_struct *work)
+__lpfc_sli4_hba_process_cq(struct lpfc_queue *cq)
{
- struct lpfc_queue *cq =
- container_of(work, struct lpfc_queue, irqwork);
struct lpfc_hba *phba = cq->phba;
- struct lpfc_cqe *cqe;
+ unsigned long delay;
bool workposted = false;
- int ccount = 0;
-
- /* Process all the entries to the CQ */
- while ((cqe = lpfc_sli4_cq_get(cq))) {
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
- if (phba->ktime_on)
- cq->isr_timestamp = ktime_get_ns();
- else
- cq->isr_timestamp = 0;
-#endif
- workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
- if (!(++ccount % cq->entry_repost))
- break;
- }
-
- /* Track the max number of CQEs processed in 1 EQ */
- if (ccount > cq->CQ_max_cqe)
- cq->CQ_max_cqe = ccount;
- cq->assoc_qp->EQ_cqe_cnt += ccount;
- /* Catch the no cq entry condition */
- if (unlikely(ccount == 0))
- lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "0369 No entry from fast-path completion "
- "queue fcpcqid=%d\n", cq->queue_id);
+ /* process and rearm the CQ */
+ workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
+ &delay);
- /* In any case, flash and re-arm the CQ */
- phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
+ if (delay) {
+ if (!queue_delayed_work_on(cq->chann, phba->wq,
+ &cq->sched_irqwork, delay))
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0367 Cannot schedule soft IRQ "
+ "for cqid=%d on CPU %d\n",
+ cq->queue_id, cq->chann);
+ }
/* wake up worker thread if there are works to be done */
if (workposted)
lpfc_worker_wake_up(phba);
}
+/**
+ * lpfc_sli4_hba_process_cq - fast-path work handler when started by
+ * interrupt
+ * @work: pointer to work element
+ *
+ * translates from the work handler and calls the fast-path handler.
+ **/
static void
-lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
+lpfc_sli4_hba_process_cq(struct work_struct *work)
{
- struct lpfc_eqe *eqe;
-
- /* walk all the EQ entries and drop on the floor */
- while ((eqe = lpfc_sli4_eq_get(eq)))
- ;
+ struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
- /* Clear and re-arm the EQ */
- phba->sli4_hba.sli4_eq_release(eq, LPFC_QUEUE_REARM);
+ __lpfc_sli4_hba_process_cq(cq);
}
+/**
+ * lpfc_sli4_hba_process_cq - fast-path work handler when started by timer
+ * @work: pointer to work element
+ *
+ * translates from the work handler and calls the fast-path handler.
+ **/
+static void
+lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
+{
+ struct lpfc_queue *cq = container_of(to_delayed_work(work),
+ struct lpfc_queue, sched_irqwork);
+
+ __lpfc_sli4_hba_process_cq(cq);
+}
/**
* lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
struct lpfc_hba *phba;
struct lpfc_hba_eq_hdl *hba_eq_hdl;
struct lpfc_queue *fpeq;
- struct lpfc_eqe *eqe;
unsigned long iflag;
int ecount = 0;
int hba_eqidx;
+ struct lpfc_eq_intr_info *eqi;
+ uint32_t icnt;
/* Get the driver's phba structure from the dev_id */
hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
return IRQ_NONE;
}
- /*
- * Process all the event on FCP fast-path EQ
- */
- while ((eqe = lpfc_sli4_eq_get(fpeq))) {
- lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
- if (!(++ecount % fpeq->entry_repost))
- break;
- fpeq->EQ_processed++;
- }
+ eqi = phba->sli4_hba.eq_info;
+ icnt = this_cpu_inc_return(eqi->icnt);
+ fpeq->last_cpu = smp_processor_id();
- /* Track the max number of EQEs processed in 1 intr */
- if (ecount > fpeq->EQ_max_eqe)
- fpeq->EQ_max_eqe = ecount;
+ if (icnt > LPFC_EQD_ISR_TRIGGER &&
+ phba->cfg_irq_chann == 1 &&
+ phba->cfg_auto_imax &&
+ fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
+ phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
+ lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
- /* Always clear and re-arm the fast-path EQ */
- phba->sli4_hba.sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
+ /* process and rearm the EQ */
+ ecount = lpfc_sli4_process_eq(phba, fpeq);
if (unlikely(ecount == 0)) {
fpeq->EQ_no_entry++;
kfree(queue->rqbp);
}
+ if (!list_empty(&queue->cpu_list))
+ list_del(&queue->cpu_list);
+
if (!list_empty(&queue->wq_list))
list_del(&queue->wq_list);
INIT_LIST_HEAD(&queue->wqfull_list);
INIT_LIST_HEAD(&queue->page_list);
INIT_LIST_HEAD(&queue->child_list);
+ INIT_LIST_HEAD(&queue->cpu_list);
/* Set queue parameters now. If the system cannot provide memory
* resources, the free routine needs to know what was allocated.
}
INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
+ INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
+ INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
- /* entry_repost will be set during q creation */
+ /* notify_interval will be set during q creation */
return queue;
out_fail:
int cnt = 0, rc, length;
uint32_t shdr_status, shdr_add_status;
uint32_t dmult;
- struct lpfc_register reg_data;
int qidx;
union lpfc_sli4_cfg_shdr *shdr;
if (!eq)
continue;
- /* save value last set */
- eq->q_mode = usdelay;
-
- /* write register */
- reg_data.word0 = 0;
- bf_set(lpfc_sliport_eqdelay_id, ®_data,
- eq->queue_id);
- bf_set(lpfc_sliport_eqdelay_delay, ®_data, usdelay);
- writel(reg_data.word0,
- phba->sli4_hba.u.if_type2.EQDregaddr);
+ lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
if (++cnt >= numq)
break;
if (eq->queue_id == 0xFFFF)
status = -ENXIO;
eq->host_index = 0;
- eq->hba_index = 0;
- eq->entry_repost = LPFC_EQ_REPOST;
+ eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
+ eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
mempool_free(mbox, phba->mbox_mem_pool);
return status;
cq->assoc_qid = eq->queue_id;
cq->assoc_qp = eq;
cq->host_index = 0;
- cq->hba_index = 0;
- cq->entry_repost = LPFC_CQ_REPOST;
+ cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
+ cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
if (cq->queue_id > phba->sli4_hba.cq_max)
phba->sli4_hba.cq_max = cq->queue_id;
cq->assoc_qid = eq->queue_id;
cq->assoc_qp = eq;
cq->host_index = 0;
- cq->hba_index = 0;
- cq->entry_repost = LPFC_CQ_REPOST;
+ cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
+ cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
+ cq->entry_count);
cq->chann = idx;
rc = 0;
mq->subtype = subtype;
mq->host_index = 0;
mq->hba_index = 0;
- mq->entry_repost = LPFC_MQ_REPOST;
/* link the mq onto the parent cq child list */
list_add_tail(&mq->list, &cq->child_list);
wq->subtype = subtype;
wq->host_index = 0;
wq->hba_index = 0;
- wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
+ wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
/* link the wq onto the parent cq child list */
list_add_tail(&wq->list, &cq->child_list);
hrq->subtype = subtype;
hrq->host_index = 0;
hrq->hba_index = 0;
- hrq->entry_repost = LPFC_RQ_REPOST;
+ hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
/* now create the data queue */
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
drq->subtype = subtype;
drq->host_index = 0;
drq->hba_index = 0;
- drq->entry_repost = LPFC_RQ_REPOST;
+ drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
/* link the header and data RQs onto the parent cq child list */
list_add_tail(&hrq->list, &cq->child_list);
hrq->subtype = subtype;
hrq->host_index = 0;
hrq->hba_index = 0;
- hrq->entry_repost = LPFC_RQ_REPOST;
+ hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
drq->db_format = LPFC_DB_RING_FORMAT;
drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
drq->subtype = subtype;
drq->host_index = 0;
drq->hba_index = 0;
- drq->entry_repost = LPFC_RQ_REPOST;
+ drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
list_add_tail(&hrq->list, &cq->child_list);
list_add_tail(&drq->list, &cq->child_list);
/* sanity check on queue memory */
if (!eq)
return -ENODEV;
+
mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
projects / users / hch / xfs.git / commitdiff