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[SCSI] lpfc 8.3.33: Tie parallel I/O queues into separate MSIX vectors 

Add fcp_io_channel module attribute to control amount of parallel I/O queues

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart 2012-08-03 12:36:13 -04:00 committed by James Bottomley
parent aa6fbb757a
commit 67d1273385
8 changed files with 453 additions and 686 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/scsi/lpfc/lpfc.h
View File

@ -695,6 +695,7 @@ struct lpfc_hba {
uint32_t cfg_fcp_imax;
uint32_t cfg_fcp_wq_count;
uint32_t cfg_fcp_eq_count;
uint32_t cfg_fcp_io_channel;
uint32_t cfg_sg_seg_cnt;
uint32_t cfg_prot_sg_seg_cnt;
uint32_t cfg_sg_dma_buf_size;

26
drivers/scsi/lpfc/lpfc_attr.c
View File

@ -3654,7 +3654,7 @@ lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
return -EINVAL;
phba->cfg_fcp_imax = (uint32_t)val;
for (i = 0; i < phba->cfg_fcp_eq_count; i += LPFC_MAX_EQ_DELAY)
for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
lpfc_modify_fcp_eq_delay(phba, i);
return strlen(buf);
@ -3844,20 +3844,32 @@ LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
/*
# lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
# This parameter is ignored and will eventually be depricated
#
# Value range is [1,31]. Default value is 4.
# Value range is [1,7]. Default value is 4.
*/
LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
LPFC_ATTR_R(fcp_wq_count, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
LPFC_FCP_IO_CHAN_MAX,
"Set the number of fast-path FCP work queues, if possible");
/*
# lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
# lpfc_fcp_eq_count: Set the number of FCP EQ/CQ/WQ IO channels
#
# Value range is [1,7]. Default value is 1.
# Value range is [1,7]. Default value is 4.
*/
LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
LPFC_ATTR_R(fcp_eq_count, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
LPFC_FCP_IO_CHAN_MAX,
"Set the number of fast-path FCP event queues, if possible");
/*
# lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
#
# Value range is [1,7]. Default value is 4.
*/
LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
LPFC_FCP_IO_CHAN_MAX,
"Set the number of FCP I/O channels");
/*
# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
# 0 = HBA resets disabled
@ -4002,6 +4014,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_fcp_imax,
&dev_attr_lpfc_fcp_wq_count,
&dev_attr_lpfc_fcp_eq_count,
&dev_attr_lpfc_fcp_io_channel,
&dev_attr_lpfc_enable_bg,
&dev_attr_lpfc_soft_wwnn,
&dev_attr_lpfc_soft_wwpn,
@ -4980,6 +4993,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
lpfc_enable_bg_init(phba, lpfc_enable_bg);

3
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -196,8 +196,7 @@ irqreturn_t lpfc_sli_intr_handler(int, void *);
irqreturn_t lpfc_sli_sp_intr_handler(int, void *);
irqreturn_t lpfc_sli_fp_intr_handler(int, void *);
irqreturn_t lpfc_sli4_intr_handler(int, void *);
irqreturn_t lpfc_sli4_sp_intr_handler(int, void *);
irqreturn_t lpfc_sli4_fp_intr_handler(int, void *);
irqreturn_t lpfc_sli4_hba_intr_handler(int, void *);
void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_sli4_swap_str(struct lpfc_hba *, LPFC_MBOXQ_t *);

78
drivers/scsi/lpfc/lpfc_debugfs.c
View File

@ -2013,38 +2013,23 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
if (*ppos)
return 0;
/* Get slow-path event queue information */
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
"Slow-path EQ information:\n");
if (phba->sli4_hba.sp_eq) {
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\tEQID[%02d], "
"QE-COUNT[%04d], QE-SIZE[%04d], "
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
phba->sli4_hba.sp_eq->queue_id,
phba->sli4_hba.sp_eq->entry_count,
phba->sli4_hba.sp_eq->entry_size,
phba->sli4_hba.sp_eq->host_index,
phba->sli4_hba.sp_eq->hba_index);
}
/* Get fast-path event queue information */
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
"Fast-path EQ information:\n");
if (phba->sli4_hba.fp_eq) {
for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
"HBA EQ information:\n");
if (phba->sli4_hba.hba_eq) {
for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
fcp_qidx++) {
if (phba->sli4_hba.fp_eq[fcp_qidx]) {
if (phba->sli4_hba.hba_eq[fcp_qidx]) {
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\tEQID[%02d], "
"QE-COUNT[%04d], QE-SIZE[%04d], "
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
phba->sli4_hba.fp_eq[fcp_qidx]->queue_id,
phba->sli4_hba.fp_eq[fcp_qidx]->entry_count,
phba->sli4_hba.fp_eq[fcp_qidx]->entry_size,
phba->sli4_hba.fp_eq[fcp_qidx]->host_index,
phba->sli4_hba.fp_eq[fcp_qidx]->hba_index);
phba->sli4_hba.hba_eq[fcp_qidx]->queue_id,
phba->sli4_hba.hba_eq[fcp_qidx]->entry_count,
phba->sli4_hba.hba_eq[fcp_qidx]->entry_size,
phba->sli4_hba.hba_eq[fcp_qidx]->host_index,
phba->sli4_hba.hba_eq[fcp_qidx]->hba_index);
}
}
}
@ -2108,7 +2093,7 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
phba->sli4_hba.fcp_cq[fcp_qidx]->host_index,
phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index);
}
} while (++fcp_qidx < phba->cfg_fcp_eq_count);
} while (++fcp_qidx < phba->cfg_fcp_io_channel);
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
}
@ -2153,7 +2138,7 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
"Fast-path FCP WQ information:\n");
if (phba->sli4_hba.fcp_wq) {
for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
fcp_qidx++) {
if (!phba->sli4_hba.fcp_wq[fcp_qidx])
continue;
@ -2410,31 +2395,21 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
switch (quetp) {
case LPFC_IDIAG_EQ:
/* Slow-path event queue */
if (phba->sli4_hba.sp_eq &&
phba->sli4_hba.sp_eq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.sp_eq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.sp_eq;
goto pass_check;
}
/* Fast-path event queue */
if (phba->sli4_hba.fp_eq) {
for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) {
if (phba->sli4_hba.fp_eq[qidx] &&
phba->sli4_hba.fp_eq[qidx]->queue_id ==
/* HBA event queue */
if (phba->sli4_hba.hba_eq) {
for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
qidx++) {
if (phba->sli4_hba.hba_eq[qidx] &&
phba->sli4_hba.hba_eq[qidx]->queue_id ==
queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.fp_eq[qidx],
phba->sli4_hba.hba_eq[qidx],
index, count);
if (rc)
goto error_out;
idiag.ptr_private =
phba->sli4_hba.fp_eq[qidx];
phba->sli4_hba.hba_eq[qidx];
goto pass_check;
}
}
@ -2481,7 +2456,7 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
phba->sli4_hba.fcp_cq[qidx];
goto pass_check;
}
} while (++qidx < phba->cfg_fcp_eq_count);
} while (++qidx < phba->cfg_fcp_io_channel);
}
goto error_out;
break;
@ -2513,7 +2488,8 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
}
/* FCP work queue */
if (phba->sli4_hba.fcp_wq) {
for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) {
for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
qidx++) {
if (!phba->sli4_hba.fcp_wq[qidx])
continue;
if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
@ -4492,7 +4468,7 @@ lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
lpfc_debug_dump_mbx_wq(phba);
lpfc_debug_dump_els_wq(phba);
for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++)
for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
lpfc_debug_dump_fcp_wq(phba, fcp_wqidx);
lpfc_debug_dump_hdr_rq(phba);
@ -4503,14 +4479,12 @@ lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
lpfc_debug_dump_mbx_cq(phba);
lpfc_debug_dump_els_cq(phba);
for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++)
for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
lpfc_debug_dump_fcp_cq(phba, fcp_wqidx);
/*
* Dump Event Queues (EQs)
*/
lpfc_debug_dump_sp_eq(phba);
for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++)
lpfc_debug_dump_fcp_eq(phba, fcp_wqidx);
for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
lpfc_debug_dump_hba_eq(phba, fcp_wqidx);
}

67
drivers/scsi/lpfc/lpfc_debugfs.h
View File

@ -369,7 +369,7 @@ static inline void
lpfc_debug_dump_fcp_wq(struct lpfc_hba *phba, int fcp_wqidx)
{
/* sanity check */
if (fcp_wqidx >= phba->cfg_fcp_wq_count)
if (fcp_wqidx >= phba->cfg_fcp_io_channel)
return;
printk(KERN_ERR "FCP WQ: WQ[Idx:%d|Qid:%d]\n",
@ -391,15 +391,15 @@ lpfc_debug_dump_fcp_cq(struct lpfc_hba *phba, int fcp_wqidx)
int fcp_cqidx, fcp_cqid;
/* sanity check */
if (fcp_wqidx >= phba->cfg_fcp_wq_count)
if (fcp_wqidx >= phba->cfg_fcp_io_channel)
return;
fcp_cqid = phba->sli4_hba.fcp_wq[fcp_wqidx]->assoc_qid;
for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++)
for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++)
if (phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id == fcp_cqid)
break;
if (phba->intr_type == MSIX) {
if (fcp_cqidx >= phba->cfg_fcp_eq_count)
if (fcp_cqidx >= phba->cfg_fcp_io_channel)
return;
} else {
if (fcp_cqidx > 0)
@ -413,7 +413,7 @@ lpfc_debug_dump_fcp_cq(struct lpfc_hba *phba, int fcp_wqidx)
}
/**
* lpfc_debug_dump_fcp_eq - dump all entries from a fcp work queue's evt queue
* lpfc_debug_dump_hba_eq - dump all entries from a fcp work queue's evt queue
* @phba: Pointer to HBA context object.
* @fcp_wqidx: Index to a FCP work queue.
*
@ -421,36 +421,30 @@ lpfc_debug_dump_fcp_cq(struct lpfc_hba *phba, int fcp_wqidx)
* associated to the FCP work queue specified by the @fcp_wqidx.
**/
static inline void
lpfc_debug_dump_fcp_eq(struct lpfc_hba *phba, int fcp_wqidx)
lpfc_debug_dump_hba_eq(struct lpfc_hba *phba, int fcp_wqidx)
{
struct lpfc_queue *qdesc;
int fcp_eqidx, fcp_eqid;
int fcp_cqidx, fcp_cqid;
/* sanity check */
if (fcp_wqidx >= phba->cfg_fcp_wq_count)
if (fcp_wqidx >= phba->cfg_fcp_io_channel)
return;
fcp_cqid = phba->sli4_hba.fcp_wq[fcp_wqidx]->assoc_qid;
for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++)
for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++)
if (phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id == fcp_cqid)
break;
if (phba->intr_type == MSIX) {
if (fcp_cqidx >= phba->cfg_fcp_eq_count)
if (fcp_cqidx >= phba->cfg_fcp_io_channel)
return;
} else {
if (fcp_cqidx > 0)
return;
}
if (phba->cfg_fcp_eq_count == 0) {
fcp_eqidx = -1;
fcp_eqid = phba->sli4_hba.sp_eq->queue_id;
qdesc = phba->sli4_hba.sp_eq;
} else {
fcp_eqidx = fcp_cqidx;
fcp_eqid = phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id;
qdesc = phba->sli4_hba.fp_eq[fcp_eqidx];
}
fcp_eqid = phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id;
qdesc = phba->sli4_hba.hba_eq[fcp_eqidx];
printk(KERN_ERR "FCP EQ: WQ[Idx:%d|Qid:%d]->CQ[Idx:%d|Qid:%d]->"
"EQ[Idx:%d|Qid:%d]\n",
@ -545,25 +539,6 @@ lpfc_debug_dump_mbx_cq(struct lpfc_hba *phba)
lpfc_debug_dump_q(phba->sli4_hba.mbx_cq);
}
/**
* lpfc_debug_dump_sp_eq - dump all entries from slow-path event queue
* @phba: Pointer to HBA context object.
*
* This function dumps all entries from the slow-path event queue.
**/
static inline void
lpfc_debug_dump_sp_eq(struct lpfc_hba *phba)
{
printk(KERN_ERR "SP EQ: WQ[Qid:%d/Qid:%d]->CQ[Qid:%d/Qid:%d]->"
"EQ[Qid:%d]:\n",
phba->sli4_hba.mbx_wq->queue_id,
phba->sli4_hba.els_wq->queue_id,
phba->sli4_hba.mbx_cq->queue_id,
phba->sli4_hba.els_cq->queue_id,
phba->sli4_hba.sp_eq->queue_id);
lpfc_debug_dump_q(phba->sli4_hba.sp_eq);
}
/**
* lpfc_debug_dump_wq_by_id - dump all entries from a work queue by queue id
* @phba: Pointer to HBA context object.
@ -577,10 +552,10 @@ lpfc_debug_dump_wq_by_id(struct lpfc_hba *phba, int qid)
{
int wq_idx;
for (wq_idx = 0; wq_idx < phba->cfg_fcp_wq_count; wq_idx++)
for (wq_idx = 0; wq_idx < phba->cfg_fcp_io_channel; wq_idx++)
if (phba->sli4_hba.fcp_wq[wq_idx]->queue_id == qid)
break;
if (wq_idx < phba->cfg_fcp_wq_count) {
if (wq_idx < phba->cfg_fcp_io_channel) {
printk(KERN_ERR "FCP WQ[Idx:%d|Qid:%d]\n", wq_idx, qid);
lpfc_debug_dump_q(phba->sli4_hba.fcp_wq[wq_idx]);
return;
@ -647,9 +622,9 @@ lpfc_debug_dump_cq_by_id(struct lpfc_hba *phba, int qid)
do {
if (phba->sli4_hba.fcp_cq[cq_idx]->queue_id == qid)
break;
} while (++cq_idx < phba->cfg_fcp_eq_count);
} while (++cq_idx < phba->cfg_fcp_io_channel);
if (cq_idx < phba->cfg_fcp_eq_count) {
if (cq_idx < phba->cfg_fcp_io_channel) {
printk(KERN_ERR "FCP CQ[Idx:%d|Qid:%d]\n", cq_idx, qid);
lpfc_debug_dump_q(phba->sli4_hba.fcp_cq[cq_idx]);
return;
@ -680,21 +655,17 @@ lpfc_debug_dump_eq_by_id(struct lpfc_hba *phba, int qid)
{
int eq_idx;
for (eq_idx = 0; eq_idx < phba->cfg_fcp_eq_count; eq_idx++) {
if (phba->sli4_hba.fp_eq[eq_idx]->queue_id == qid)
for (eq_idx = 0; eq_idx < phba->cfg_fcp_io_channel; eq_idx++) {
if (phba->sli4_hba.hba_eq[eq_idx]->queue_id == qid)
break;
}
if (eq_idx < phba->cfg_fcp_eq_count) {
if (eq_idx < phba->cfg_fcp_io_channel) {
printk(KERN_ERR "FCP EQ[Idx:%d|Qid:%d]\n", eq_idx, qid);
lpfc_debug_dump_q(phba->sli4_hba.fp_eq[eq_idx]);
lpfc_debug_dump_q(phba->sli4_hba.hba_eq[eq_idx]);
return;
}
if (phba->sli4_hba.sp_eq->queue_id == qid) {
printk(KERN_ERR "SP EQ[|Qid:%d]\n", qid);
lpfc_debug_dump_q(phba->sli4_hba.sp_eq);
}
}
void lpfc_debug_dump_all_queues(struct lpfc_hba *);

742
drivers/scsi/lpfc/lpfc_init.c
View File

File diff suppressed because it is too large Load Diff

184
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -4921,16 +4921,15 @@ lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
fcp_eqidx = 0;
if (phba->sli4_hba.fcp_cq) {
do
do {
lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
LPFC_QUEUE_REARM);
while (++fcp_eqidx < phba->cfg_fcp_eq_count);
} while (++fcp_eqidx < phba->cfg_fcp_io_channel);
}
lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
if (phba->sli4_hba.fp_eq) {
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
if (phba->sli4_hba.hba_eq) {
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
fcp_eqidx++)
lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
LPFC_QUEUE_REARM);
}
}
@ -7818,7 +7817,7 @@ lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
int i;
i = atomic_add_return(1, &phba->fcp_qidx);
i = (i % phba->cfg_fcp_wq_count);
i = (i % phba->cfg_fcp_io_channel);
return i;
}
@ -8727,7 +8726,7 @@ lpfc_sli_setup(struct lpfc_hba *phba)
psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
if (phba->sli_rev == LPFC_SLI_REV4)
psli->num_rings += phba->cfg_fcp_eq_count;
psli->num_rings += phba->cfg_fcp_io_channel;
psli->sli_flag = 0;
psli->fcp_ring = LPFC_FCP_RING;
psli->next_ring = LPFC_FCP_NEXT_RING;
@ -11468,31 +11467,18 @@ lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
*
**/
static void
lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
struct lpfc_queue *speq)
{
struct lpfc_queue *cq = NULL, *childq, *speq;
struct lpfc_queue *cq = NULL, *childq;
struct lpfc_cqe *cqe;
bool workposted = false;
int ecount = 0;
uint16_t cqid;
if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0359 Not a valid slow-path completion "
"event: majorcode=x%x, minorcode=x%x\n",
bf_get_le32(lpfc_eqe_major_code, eqe),
bf_get_le32(lpfc_eqe_minor_code, eqe));
return;
}
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
/* Search for completion queue pointer matching this cqid */
speq = phba->sli4_hba.sp_eq;
/* sanity check on queue memory */
if (unlikely(!speq))
return;
list_for_each_entry(childq, &speq->child_list, list) {
if (childq->queue_id == cqid) {
cq = childq;
@ -11711,7 +11697,7 @@ lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
}
/**
* lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
* lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
* @phba: Pointer to HBA context object.
* @eqe: Pointer to fast-path event queue entry.
*
@ -11723,8 +11709,8 @@ lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
* completion queue, and then return.
**/
static void
lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
uint32_t fcp_cqidx)
lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
uint32_t qidx)
{
struct lpfc_queue *cq;
struct lpfc_cqe *cqe;
@ -11734,30 +11720,38 @@ lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0366 Not a valid fast-path completion "
"0366 Not a valid completion "
"event: majorcode=x%x, minorcode=x%x\n",
bf_get_le32(lpfc_eqe_major_code, eqe),
bf_get_le32(lpfc_eqe_minor_code, eqe));
return;
}
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
/* Check if this is a Slow path event */
if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
lpfc_sli4_sp_handle_eqe(phba, eqe,
phba->sli4_hba.hba_eq[qidx]);
return;
}
if (unlikely(!phba->sli4_hba.fcp_cq)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3146 Fast-path completion queues "
"does not exist\n");
return;
}
cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
cq = phba->sli4_hba.fcp_cq[qidx];
if (unlikely(!cq)) {
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0367 Fast-path completion queue "
"(%d) does not exist\n", fcp_cqidx);
"(%d) does not exist\n", qidx);
return;
}
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
if (unlikely(cqid != cq->queue_id)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0368 Miss-matched fast-path completion "
@ -11805,93 +11799,7 @@ lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
}
/**
* lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is directly called from the PCI layer as an interrupt
* service routine when device with SLI-4 interface spec is enabled with
* MSI-X multi-message interrupt mode and there are slow-path events in
* the HBA. However, when the device is enabled with either MSI or Pin-IRQ
* interrupt mode, this function is called as part of the device-level
* interrupt handler. When the PCI slot is in error recovery or the HBA is
* undergoing initialization, the interrupt handler will not process the
* interrupt. The link attention and ELS ring attention events are handled
* by the worker thread. The interrupt handler signals the worker thread
* and returns for these events. This function is called without any lock
* held. It gets the hbalock to access and update SLI data structures.
*
* This function returns IRQ_HANDLED when interrupt is handled else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
struct lpfc_queue *speq;
struct lpfc_eqe *eqe;
unsigned long iflag;
int ecount = 0;
/*
* Get the driver's phba structure from the dev_id
*/
phba = (struct lpfc_hba *)dev_id;
if (unlikely(!phba))
return IRQ_NONE;
/* Get to the EQ struct associated with this vector */
speq = phba->sli4_hba.sp_eq;
if (unlikely(!speq))
return IRQ_NONE;
/* Check device state for handling interrupt */
if (unlikely(lpfc_intr_state_check(phba))) {
speq->EQ_badstate++;
/* Check again for link_state with lock held */
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->link_state < LPFC_LINK_DOWN)
/* Flush, clear interrupt, and rearm the EQ */
lpfc_sli4_eq_flush(phba, speq);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return IRQ_NONE;
}
/*
* Process all the event on FCP slow-path EQ
*/
while ((eqe = lpfc_sli4_eq_get(speq))) {
lpfc_sli4_sp_handle_eqe(phba, eqe);
if (!(++ecount % speq->entry_repost))
lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
speq->EQ_processed++;
}
/* Track the max number of EQEs processed in 1 intr */
if (ecount > speq->EQ_max_eqe)
speq->EQ_max_eqe = ecount;
/* Always clear and re-arm the slow-path EQ */
lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
/* Catch the no cq entry condition */
if (unlikely(ecount == 0)) {
speq->EQ_no_entry++;
if (phba->intr_type == MSIX)
/* MSI-X treated interrupt served as no EQ share INT */
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0357 MSI-X interrupt with no EQE\n");
else
/* Non MSI-X treated on interrupt as EQ share INT */
return IRQ_NONE;
}
return IRQ_HANDLED;
} /* lpfc_sli4_sp_intr_handler */
/**
* lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
* lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
@ -11908,11 +11816,16 @@ lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
* the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
* equal to that of FCP CQ index.
*
* The link attention and ELS ring attention events are handled
* by the worker thread. The interrupt handler signals the worker thread
* and returns for these events. This function is called without any lock
* held. It gets the hbalock to access and update SLI data structures.
*
* This function returns IRQ_HANDLED when interrupt is handled else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
@ -11929,11 +11842,11 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
if (unlikely(!phba))
return IRQ_NONE;
if (unlikely(!phba->sli4_hba.fp_eq))
if (unlikely(!phba->sli4_hba.hba_eq))
return IRQ_NONE;
/* Get to the EQ struct associated with this vector */
fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
if (unlikely(!fpeq))
return IRQ_NONE;
@ -11953,7 +11866,7 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
* Process all the event on FCP fast-path EQ
*/
while ((eqe = lpfc_sli4_eq_get(fpeq))) {
lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
if (!(++ecount % fpeq->entry_repost))
lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
fpeq->EQ_processed++;
@ -12001,8 +11914,8 @@ irqreturn_t
lpfc_sli4_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
irqreturn_t sp_irq_rc, fp_irq_rc;
bool fp_handled = false;
irqreturn_t hba_irq_rc;
bool hba_handled = false;
uint32_t fcp_eqidx;
/* Get the driver's phba structure from the dev_id */
@ -12011,22 +11924,17 @@ lpfc_sli4_intr_handler(int irq, void *dev_id)
if (unlikely(!phba))
return IRQ_NONE;
/*
* Invokes slow-path host attention interrupt handling as appropriate.
*/
sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
/*
* Invoke fast-path host attention interrupt handling as appropriate.
*/
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
&phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
if (fp_irq_rc == IRQ_HANDLED)
fp_handled |= true;
if (hba_irq_rc == IRQ_HANDLED)
hba_handled |= true;
}
return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
} /* lpfc_sli4_intr_handler */
/**
@ -12157,7 +12065,7 @@ lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
union lpfc_sli4_cfg_shdr *shdr;
uint16_t dmult;
if (startq >= phba->cfg_fcp_eq_count)
if (startq >= phba->cfg_fcp_io_channel)
return 0;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@ -12174,9 +12082,9 @@ lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
dmult = LPFC_DMULT_CONST/phba->cfg_fcp_imax - 1;
cnt = 0;
for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_eq_count;
for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
fcp_eqidx++) {
eq = phba->sli4_hba.fp_eq[fcp_eqidx];
eq = phba->sli4_hba.hba_eq[fcp_eqidx];
if (!eq)
continue;
eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;

28
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -34,18 +34,10 @@
/* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
#define LPFC_NEMBED_MBOX_SGL_CNT 254
/* Multi-queue arrangement for fast-path FCP work queues */
#define LPFC_FN_EQN_MAX 8
#define LPFC_SP_EQN_DEF 1
#define LPFC_FP_EQN_DEF 4
#define LPFC_FP_EQN_MIN 1
#define LPFC_FP_EQN_MAX (LPFC_FN_EQN_MAX - LPFC_SP_EQN_DEF)
#define LPFC_FN_WQN_MAX 32
#define LPFC_SP_WQN_DEF 1
#define LPFC_FP_WQN_DEF 4
#define LPFC_FP_WQN_MIN 1
#define LPFC_FP_WQN_MAX (LPFC_FN_WQN_MAX - LPFC_SP_WQN_DEF)
/* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
#define LPFC_FCP_IO_CHAN_DEF 4
#define LPFC_FCP_IO_CHAN_MIN 1
#define LPFC_FCP_IO_CHAN_MAX 8
/*
* Provide the default FCF Record attributes used by the driver
@ -497,17 +489,19 @@ struct lpfc_sli4_hba {
uint32_t cfg_eqn;
uint32_t msix_vec_nr;
struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
/* Pointers to the constructed SLI4 queues */
struct lpfc_queue **fp_eq; /* Fast-path event queue */
struct lpfc_queue *sp_eq; /* Slow-path event queue */
struct lpfc_queue **hba_eq;/* Event queues for HBA */
struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
uint16_t *fcp_cq_map;
struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
/* Setup information for various queue parameters */
int eq_esize;