diff options
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 56 |
1 files changed, 42 insertions, 14 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 38993efbe37e..30480e47913f 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -96,6 +96,34 @@ lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) return &iocbq->iocb; } +#if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN) +/** + * lpfc_sli4_pcimem_bcopy - SLI4 memory copy function + * @srcp: Source memory pointer. + * @destp: Destination memory pointer. + * @cnt: Number of words required to be copied. + * Must be a multiple of sizeof(uint64_t) + * + * This function is used for copying data between driver memory + * and the SLI WQ. This function also changes the endianness + * of each word if native endianness is different from SLI + * endianness. This function can be called with or without + * lock. + **/ +void +lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) +{ + uint64_t *src = srcp; + uint64_t *dest = destp; + int i; + + for (i = 0; i < (int)cnt; i += sizeof(uint64_t)) + *dest++ = *src++; +} +#else +#define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c) +#endif + /** * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue * @q: The Work Queue to operate on. @@ -137,7 +165,7 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe) bf_set(wqe_wqec, &wqe->generic.wqe_com, 0); if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED) bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id); - lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); + lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size); if (q->dpp_enable && q->phba->cfg_enable_dpp) { /* write to DPP aperture taking advatage of Combined Writes */ tmp = (uint8_t *)temp_wqe; @@ -240,7 +268,7 @@ lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) /* 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) return -ENOMEM; - lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); + lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size); /* Save off the mailbox pointer for completion */ q->phba->mbox = (MAILBOX_t *)temp_mqe; @@ -663,8 +691,8 @@ lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, /* If the host has not yet processed the next entry then we are done */ if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index) return -EBUSY; - lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); - lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); + lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); + lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); /* Update the host index to point to the next slot */ hq->host_index = ((hq_put_index + 1) % hq->entry_count); @@ -8185,8 +8213,8 @@ lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) */ mbx_cmnd = bf_get(lpfc_mqe_command, mb); memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create)); - lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, - sizeof(struct lpfc_mqe)); + lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, + sizeof(struct lpfc_mqe)); /* Post the high mailbox dma address to the port and wait for ready. */ dma_address = &phba->sli4_hba.bmbx.dma_address; @@ -8210,11 +8238,11 @@ lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) * If so, update the mailbox status so that the upper layers * can complete the request normally. */ - lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, - sizeof(struct lpfc_mqe)); + lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, + sizeof(struct lpfc_mqe)); mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt; - lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, - sizeof(struct lpfc_mcqe)); + lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, + sizeof(struct lpfc_mcqe)); mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe); /* * When the CQE status indicates a failure and the mailbox status @@ -12830,7 +12858,7 @@ lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) /* Move mbox data to caller's mailbox region, do endian swapping */ if (pmb->mbox_cmpl && mbox) - lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); + lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); /* * For mcqe errors, conditionally move a modified error code to @@ -12913,7 +12941,7 @@ lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) bool workposted; /* Copy the mailbox MCQE and convert endian order as needed */ - lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); + lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); /* Invoke the proper event handling routine */ if (!bf_get(lpfc_trailer_async, &mcqe)) @@ -13173,7 +13201,7 @@ lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, bool workposted = false; /* Copy the work queue CQE and convert endian order if needed */ - lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe)); + lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe)); /* Check and process for different type of WCQE and dispatch */ switch (bf_get(lpfc_cqe_code, &cqevt)) { @@ -13581,7 +13609,7 @@ lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, bool workposted = false; /* Copy the work queue CQE and convert endian order if needed */ - lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); + lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); /* Check and process for different type of WCQE and dispatch */ switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { |