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lpfc: Fix setting of EQ (interrupt) delay Multiplier 

Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
James Smart 2015-04-07 15:07:15 -04:00 committed by James Bottomley
parent ea4142f6b1
commit 2c9c5a0010
3 changed files with 12 additions and 7 deletions
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8
drivers/scsi/lpfc/lpfc_init.c
View File

@ -7721,6 +7721,14 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
goto out_destroy_els_rq;
}
}
/*
* Configure EQ delay multipier for interrupt coalescing using
* MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
*/
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
fcp_eqidx += LPFC_MAX_EQ_DELAY)
lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
return 0;
out_destroy_els_rq:

9
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -12842,7 +12842,7 @@ lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
* fails this function will return -ENXIO.
**/
int
lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint32_t startq)
{
struct lpfc_mbx_modify_eq_delay *eq_delay;
LPFC_MBOXQ_t *mbox;
@ -12959,11 +12959,8 @@ lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
LPFC_EQE_SIZE);
bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
/* Calculate delay multiper from maximum interrupt per second */
if (imax > LPFC_DMULT_CONST)
dmult = 0;
else
dmult = LPFC_DMULT_CONST/imax - 1;
/* don't setup delay multiplier using EQ_CREATE */
dmult = 0;
bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
dmult);
switch (eq->entry_count) {

2
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -671,7 +671,7 @@ struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
uint32_t);
void lpfc_sli4_queue_free(struct lpfc_queue *);
int lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
int lpfc_modify_fcp_eq_delay(struct lpfc_hba *, uint16_t);
int lpfc_modify_fcp_eq_delay(struct lpfc_hba *, uint32_t);
int lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
struct lpfc_queue *, uint32_t, uint32_t);
int32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,