diff options
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 31 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli4.h | 1 |
2 files changed, 20 insertions, 12 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 6569fffb8b71..d731979e4c7c 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -80,8 +80,8 @@ static int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *, struct lpfc_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 *, struct lpfc_eqe *, - uint32_t); +static int lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, + struct lpfc_eqe *eqe, uint32_t qidx); 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, @@ -13010,7 +13010,7 @@ lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, * completion queue, and then return. * **/ -static void +static int lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, struct lpfc_queue *speq) { @@ -13034,7 +13034,7 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0365 Slow-path CQ identifier " "(%d) does not exist\n", cqid); - return; + return 0; } /* Save EQ associated with this CQ */ @@ -13071,7 +13071,7 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0370 Invalid completion queue type (%d)\n", cq->type); - return; + return 0; } /* Catch the no cq entry condition, log an error */ @@ -13086,6 +13086,8 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, /* wake up worker thread if there are works to be done */ if (workposted) lpfc_worker_wake_up(phba); + + return ecount; } /** @@ -13393,7 +13395,7 @@ lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, * queue and process all the entries on the completion queue, rearm the * completion queue, and then return. **/ -static void +static int lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, uint32_t qidx) { @@ -13409,7 +13411,7 @@ lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, "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; + return 0; } /* Get the reference to the corresponding CQ */ @@ -13446,8 +13448,9 @@ lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, /* Otherwise this is a Slow path event */ if (cq == NULL) { - lpfc_sli4_sp_handle_eqe(phba, eqe, phba->sli4_hba.hba_eq[qidx]); - return; + ecount = lpfc_sli4_sp_handle_eqe(phba, eqe, + phba->sli4_hba.hba_eq[qidx]); + return ecount; } process_cq: @@ -13456,7 +13459,7 @@ process_cq: "0368 Miss-matched fast-path completion " "queue identifier: eqcqid=%d, fcpcqid=%d\n", cqid, cq->queue_id); - return; + return 0; } /* Save EQ associated with this CQ */ @@ -13486,6 +13489,8 @@ process_cq: /* wake up worker thread if there are works to be done */ if (workposted) lpfc_worker_wake_up(phba); + + return ecount; } static void @@ -13706,6 +13711,7 @@ lpfc_sli4_hba_intr_handler(int irq, void *dev_id) struct lpfc_eqe *eqe; unsigned long iflag; int ecount = 0; + int ccount = 0; int hba_eqidx; /* Get the driver's phba structure from the dev_id */ @@ -13757,8 +13763,9 @@ lpfc_sli4_hba_intr_handler(int irq, void *dev_id) if (eqe == NULL) break; - lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx); - if (!(++ecount % fpeq->entry_repost)) + ccount += lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx); + if (!(++ecount % fpeq->entry_repost) || + ccount > LPFC_MAX_ISR_CQE) break; fpeq->EQ_processed++; } diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 7a1d74e9e877..540454b03587 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -158,6 +158,7 @@ struct lpfc_queue { #define LPFC_MQ_REPOST 8 #define LPFC_CQ_REPOST 64 #define LPFC_RQ_REPOST 64 +#define LPFC_MAX_ISR_CQE 64 #define LPFC_RELEASE_NOTIFICATION_INTERVAL 32 /* For WQs */ uint32_t queue_id; /* Queue ID assigned by the hardware */ uint32_t assoc_qid; /* Queue ID associated with, for CQ/WQ/MQ */ |