From b84daac9dce4c87b83668d6790f3b092a2e906ae Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 3 Aug 2012 12:35:13 -0400 Subject: [PATCH] [SCSI] lpfc 8.3.33: Add debugfs interface to display SLI queue information Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_debugfs.h | 3 +++ drivers/scsi/lpfc/lpfc_sli.c | 35 +++++++++++++++++++++++++++++++- drivers/scsi/lpfc/lpfc_sli4.h | 29 ++++++++++++++++++++++++++ 3 files changed, 66 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h index afe368fd1b98..a9593ac9c134 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.h +++ b/drivers/scsi/lpfc/lpfc_debugfs.h @@ -36,6 +36,9 @@ /* dumpHostSlim output buffer size */ #define LPFC_DUMPHOSTSLIM_SIZE 4096 +/* dumpSLIqinfo output buffer size */ +#define LPFC_DUMPSLIQINFO_SIZE 4096 + /* hbqinfo output buffer size */ #define LPFC_HBQINFO_SIZE 8192 diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 9cbd20b1328b..296a6f8473e0 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -101,8 +101,11 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) temp_wqe = q->qe[q->host_index].wqe; /* If the host has not yet processed the next entry then we are done */ - if (((q->host_index + 1) % q->entry_count) == q->hba_index) + if (((q->host_index + 1) % q->entry_count) == q->hba_index) { + q->WQ_overflow++; return -ENOMEM; + } + q->WQ_posted++; /* set consumption flag every once in a while */ if (!((q->host_index + 1) % q->entry_repost)) bf_set(wqe_wqec, &wqe->generic.wqe_com, 1); @@ -11311,14 +11314,17 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe) case FC_STATUS_RQ_BUF_LEN_EXCEEDED: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "2537 Receive Frame Truncated!!\n"); + hrq->RQ_buf_trunc++; case FC_STATUS_RQ_SUCCESS: lpfc_sli4_rq_release(hrq, drq); spin_lock_irqsave(&phba->hbalock, iflags); dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list); if (!dma_buf) { + hrq->RQ_no_buf_found++; spin_unlock_irqrestore(&phba->hbalock, iflags); goto out; } + hrq->RQ_rcv_buf++; memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe)); /* save off the frame for the word thread to process */ list_add_tail(&dma_buf->cq_event.list, @@ -11330,6 +11336,7 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe) break; case FC_STATUS_INSUFF_BUF_NEED_BUF: case FC_STATUS_INSUFF_BUF_FRM_DISC: + hrq->RQ_no_posted_buf++; /* Post more buffers if possible */ spin_lock_irqsave(&phba->hbalock, iflags); phba->hba_flag |= HBA_POST_RECEIVE_BUFFER; @@ -11457,6 +11464,7 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe); if (!(++ecount % cq->entry_repost)) lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); + cq->CQ_mbox++; } break; case LPFC_WCQ: @@ -11470,6 +11478,10 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) if (!(++ecount % cq->entry_repost)) lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); } + + /* Track the max number of CQEs processed in 1 EQ */ + if (ecount > cq->CQ_max_cqe) + cq->CQ_max_cqe = ecount; break; default: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -11621,17 +11633,20 @@ lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, /* Check and process for different type of WCQE and dispatch */ switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { case CQE_CODE_COMPL_WQE: + cq->CQ_wq++; /* Process the WQ complete event */ phba->last_completion_time = jiffies; lpfc_sli4_fp_handle_fcp_wcqe(phba, (struct lpfc_wcqe_complete *)&wcqe); break; case CQE_CODE_RELEASE_WQE: + cq->CQ_release_wqe++; /* Process the WQ release event */ lpfc_sli4_fp_handle_rel_wcqe(phba, cq, (struct lpfc_wcqe_release *)&wcqe); break; case CQE_CODE_XRI_ABORTED: + cq->CQ_xri_aborted++; /* Process the WQ XRI abort event */ phba->last_completion_time = jiffies; workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, @@ -11709,6 +11724,10 @@ lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); } + /* Track the max number of CQEs processed in 1 EQ */ + if (ecount > cq->CQ_max_cqe) + cq->CQ_max_cqe = ecount; + /* Catch the no cq entry condition */ if (unlikely(ecount == 0)) lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -11780,6 +11799,7 @@ lpfc_sli4_sp_intr_handler(int irq, void *dev_id) /* 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) @@ -11796,13 +11816,19 @@ lpfc_sli4_sp_intr_handler(int irq, void *dev_id) 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, @@ -11864,6 +11890,7 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id) /* Check device state for handling interrupt */ if (unlikely(lpfc_intr_state_check(phba))) { + fpeq->EQ_badstate++; /* Check again for link_state with lock held */ spin_lock_irqsave(&phba->hbalock, iflag); if (phba->link_state < LPFC_LINK_DOWN) @@ -11880,12 +11907,18 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id) lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx); if (!(++ecount % fpeq->entry_repost)) lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM); + fpeq->EQ_processed++; } + /* Track the max number of EQEs processed in 1 intr */ + if (ecount > fpeq->EQ_max_eqe) + fpeq->EQ_max_eqe = ecount; + /* Always clear and re-arm the fast-path EQ */ lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM); if (unlikely(ecount == 0)) { + fpeq->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, diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index ec756118c5c1..f4b57654787b 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -141,6 +141,35 @@ struct lpfc_queue { uint32_t page_count; /* Number of pages allocated for this queue */ uint32_t host_index; /* The host's index for putting or getting */ uint32_t hba_index; /* The last known hba index for get or put */ + + /* For q stats */ + uint32_t q_cnt_1; + uint32_t q_cnt_2; + uint32_t q_cnt_3; + uint64_t q_cnt_4; +/* defines for EQ stats */ +#define EQ_max_eqe q_cnt_1 +#define EQ_no_entry q_cnt_2 +#define EQ_badstate q_cnt_3 +#define EQ_processed q_cnt_4 + +/* defines for CQ stats */ +#define CQ_mbox q_cnt_1 +#define CQ_max_cqe q_cnt_1 +#define CQ_release_wqe q_cnt_2 +#define CQ_xri_aborted q_cnt_3 +#define CQ_wq q_cnt_4 + +/* defines for WQ stats */ +#define WQ_overflow q_cnt_1 +#define WQ_posted q_cnt_4 + +/* defines for RQ stats */ +#define RQ_no_posted_buf q_cnt_1 +#define RQ_no_buf_found q_cnt_2 +#define RQ_buf_trunc q_cnt_3 +#define RQ_rcv_buf q_cnt_4 + union sli4_qe qe[1]; /* array to index entries (must be last) */ };