diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 3842 |
1 files changed, 2317 insertions, 1525 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index adc784539061..6d9d8c196936 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1,8 +1,8 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * - * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * + * Copyright (C) 2017-2025 Broadcom. All Rights Reserved. The term * + * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.com * @@ -25,9 +25,10 @@ #include <linux/interrupt.h> #include <linux/export.h> #include <linux/delay.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/t10-pi.h> #include <linux/crc-t10dif.h> +#include <linux/blk-cgroup.h> #include <net/checksum.h> #include <scsi/scsi.h> @@ -53,8 +54,6 @@ #define LPFC_RESET_WAIT 2 #define LPFC_ABORT_WAIT 2 -int _dump_buf_done = 1; - static char *dif_op_str[] = { "PROT_NORMAL", "PROT_READ_INSERT", @@ -83,93 +82,12 @@ lpfc_rport_data_from_scsi_device(struct scsi_device *sdev) } static void -lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); +lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb); static void -lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); +lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb); static int lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc); -static void -lpfc_debug_save_data(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) -{ - void *src, *dst; - struct scatterlist *sgde = scsi_sglist(cmnd); - - if (!_dump_buf_data) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9050 BLKGRD: ERROR %s _dump_buf_data is NULL\n", - __func__); - return; - } - - - if (!sgde) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9051 BLKGRD: ERROR: data scatterlist is null\n"); - return; - } - - dst = (void *) _dump_buf_data; - while (sgde) { - src = sg_virt(sgde); - memcpy(dst, src, sgde->length); - dst += sgde->length; - sgde = sg_next(sgde); - } -} - -static void -lpfc_debug_save_dif(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) -{ - void *src, *dst; - struct scatterlist *sgde = scsi_prot_sglist(cmnd); - - if (!_dump_buf_dif) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9052 BLKGRD: ERROR %s _dump_buf_data is NULL\n", - __func__); - return; - } - - if (!sgde) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9053 BLKGRD: ERROR: prot scatterlist is null\n"); - return; - } - - dst = _dump_buf_dif; - while (sgde) { - src = sg_virt(sgde); - memcpy(dst, src, sgde->length); - dst += sgde->length; - sgde = sg_next(sgde); - } -} - -static inline unsigned -lpfc_cmd_blksize(struct scsi_cmnd *sc) -{ - return sc->device->sector_size; -} - -#define LPFC_CHECK_PROTECT_GUARD 1 -#define LPFC_CHECK_PROTECT_REF 2 -static inline unsigned -lpfc_cmd_protect(struct scsi_cmnd *sc, int flag) -{ - return 1; -} - -static inline unsigned -lpfc_cmd_guard_csum(struct scsi_cmnd *sc) -{ - if (lpfc_prot_group_type(NULL, sc) == LPFC_PG_TYPE_NO_DIF) - return 0; - if (scsi_host_get_guard(sc->device->host) == SHOST_DIX_GUARD_IP) - return 1; - return 0; -} - /** * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. * @phba: Pointer to HBA object. @@ -180,9 +98,9 @@ lpfc_cmd_guard_csum(struct scsi_cmnd *sc) **/ static void lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, - struct lpfc_scsi_buf *lpfc_cmd) + struct lpfc_io_buf *lpfc_cmd) { - struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; + struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; if (sgl) { sgl += 1; sgl->word2 = le32_to_cpu(sgl->word2); @@ -192,60 +110,6 @@ lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, } /** - * lpfc_update_stats - Update statistical data for the command completion - * @phba: Pointer to HBA object. - * @lpfc_cmd: lpfc scsi command object pointer. - * - * This function is called when there is a command completion and this - * function updates the statistical data for the command completion. - **/ -static void -lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) -{ - struct lpfc_rport_data *rdata = lpfc_cmd->rdata; - struct lpfc_nodelist *pnode = rdata->pnode; - struct scsi_cmnd *cmd = lpfc_cmd->pCmd; - unsigned long flags; - struct Scsi_Host *shost = cmd->device->host; - struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; - unsigned long latency; - int i; - - if (cmd->result) - return; - - latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); - - spin_lock_irqsave(shost->host_lock, flags); - if (!vport->stat_data_enabled || - vport->stat_data_blocked || - !pnode || - !pnode->lat_data || - (phba->bucket_type == LPFC_NO_BUCKET)) { - spin_unlock_irqrestore(shost->host_lock, flags); - return; - } - - if (phba->bucket_type == LPFC_LINEAR_BUCKET) { - i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ - phba->bucket_step; - /* check array subscript bounds */ - if (i < 0) - i = 0; - else if (i >= LPFC_MAX_BUCKET_COUNT) - i = LPFC_MAX_BUCKET_COUNT - 1; - } else { - for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) - if (latency <= (phba->bucket_base + - ((1<<i)*phba->bucket_step))) - break; - } - - pnode->lat_data[i].cmd_count++; - spin_unlock_irqrestore(shost->host_lock, flags); -} - -/** * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread * @phba: The Hba for which this call is being executed. * @@ -303,11 +167,10 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) struct Scsi_Host *shost; struct scsi_device *sdev; unsigned long new_queue_depth; - unsigned long num_rsrc_err, num_cmd_success; + unsigned long num_rsrc_err; int i; num_rsrc_err = atomic_read(&phba->num_rsrc_err); - num_cmd_success = atomic_read(&phba->num_cmd_success); /* * The error and success command counters are global per @@ -322,20 +185,16 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { shost = lpfc_shost_from_vport(vports[i]); shost_for_each_device(sdev, shost) { - new_queue_depth = - sdev->queue_depth * num_rsrc_err / - (num_rsrc_err + num_cmd_success); - if (!new_queue_depth) - new_queue_depth = sdev->queue_depth - 1; + if (num_rsrc_err >= sdev->queue_depth) + new_queue_depth = 1; else new_queue_depth = sdev->queue_depth - - new_queue_depth; + num_rsrc_err; scsi_change_queue_depth(sdev, new_queue_depth); } } lpfc_destroy_vport_work_array(phba, vports); atomic_set(&phba->num_rsrc_err, 0); - atomic_set(&phba->num_cmd_success, 0); } /** @@ -370,7 +229,7 @@ lpfc_scsi_dev_block(struct lpfc_hba *phba) /** * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec * @vport: The virtual port for which this call being executed. - * @num_to_allocate: The requested number of buffers to allocate. + * @num_to_alloc: The requested number of buffers to allocate. * * This routine allocates a scsi buffer for device with SLI-3 interface spec, * the scsi buffer contains all the necessary information needed to initiate @@ -387,12 +246,12 @@ static int lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) { struct lpfc_hba *phba = vport->phba; - struct lpfc_scsi_buf *psb; + struct lpfc_io_buf *psb; struct ulp_bde64 *bpl; IOCB_t *iocb; dma_addr_t pdma_phys_fcp_cmd; dma_addr_t pdma_phys_fcp_rsp; - dma_addr_t pdma_phys_bpl; + dma_addr_t pdma_phys_sgl; uint16_t iotag; int bcnt, bpl_size; @@ -406,7 +265,7 @@ lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) (int)sizeof(struct fcp_rsp), bpl_size); for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { - psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); + psb = kzalloc(sizeof(struct lpfc_io_buf), GFP_KERNEL); if (!psb) break; @@ -416,7 +275,7 @@ lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) * struct fcp_cmnd, struct fcp_rsp and the number of bde's * necessary to support the sg_tablesize. */ - psb->data = pci_pool_zalloc(phba->lpfc_sg_dma_buf_pool, + psb->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, GFP_KERNEL, &psb->dma_handle); if (!psb->data) { kfree(psb); @@ -427,23 +286,23 @@ lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) /* Allocate iotag for psb->cur_iocbq. */ iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); if (iotag == 0) { - pci_pool_free(phba->lpfc_sg_dma_buf_pool, + dma_pool_free(phba->lpfc_sg_dma_buf_pool, psb->data, psb->dma_handle); kfree(psb); break; } - psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; + psb->cur_iocbq.cmd_flag |= LPFC_IO_FCP; psb->fcp_cmnd = psb->data; psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); - psb->fcp_bpl = psb->data + sizeof(struct fcp_cmnd) + + psb->dma_sgl = psb->data + sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp); /* Initialize local short-hand pointers. */ - bpl = psb->fcp_bpl; + bpl = (struct ulp_bde64 *)psb->dma_sgl; pdma_phys_fcp_cmd = psb->dma_handle; pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); - pdma_phys_bpl = psb->dma_handle + sizeof(struct fcp_cmnd) + + pdma_phys_sgl = psb->dma_handle + sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp); /* @@ -494,16 +353,17 @@ lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) iocb->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); iocb->un.fcpi64.bdl.addrLow = - putPaddrLow(pdma_phys_bpl); + putPaddrLow(pdma_phys_sgl); iocb->un.fcpi64.bdl.addrHigh = - putPaddrHigh(pdma_phys_bpl); + putPaddrHigh(pdma_phys_sgl); iocb->ulpBdeCount = 1; iocb->ulpLe = 1; } iocb->ulpClass = CLASS3; psb->status = IOSTAT_SUCCESS; /* Put it back into the SCSI buffer list */ - psb->cur_iocbq.context1 = psb; + psb->cur_iocbq.io_buf = psb; + spin_lock_init(&psb->buf_lock); lpfc_release_scsi_buf_s3(phba, psb); } @@ -522,446 +382,174 @@ void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) { struct lpfc_hba *phba = vport->phba; - struct lpfc_scsi_buf *psb, *next_psb; + struct lpfc_io_buf *psb, *next_psb; + struct lpfc_sli4_hdw_queue *qp; unsigned long iflag = 0; + int idx; - if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) + if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) + return; + + /* may be called before queues established if hba_setup fails */ + if (!phba->sli4_hba.hdwq) return; + spin_lock_irqsave(&phba->hbalock, iflag); - spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); - list_for_each_entry_safe(psb, next_psb, - &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { - if (psb->rdata && psb->rdata->pnode - && psb->rdata->pnode->vport == vport) - psb->rdata = NULL; + for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { + qp = &phba->sli4_hba.hdwq[idx]; + + spin_lock(&qp->abts_io_buf_list_lock); + list_for_each_entry_safe(psb, next_psb, + &qp->lpfc_abts_io_buf_list, list) { + if (psb->cur_iocbq.cmd_flag & LPFC_IO_NVME) + continue; + + if (psb->rdata && psb->rdata->pnode && + psb->rdata->pnode->vport == vport) + psb->rdata = NULL; + } + spin_unlock(&qp->abts_io_buf_list_lock); } - spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); spin_unlock_irqrestore(&phba->hbalock, iflag); } /** - * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort + * lpfc_sli4_io_xri_aborted - Fast-path process of fcp xri abort * @phba: pointer to lpfc hba data structure. * @axri: pointer to the fcp xri abort wcqe structure. + * @idx: index into hdwq * * This routine is invoked by the worker thread to process a SLI4 fast-path - * FCP aborted xri. + * FCP or NVME aborted xri. **/ void -lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba, - struct sli4_wcqe_xri_aborted *axri) +lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba, + struct sli4_wcqe_xri_aborted *axri, int idx) { - uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); - uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); - struct lpfc_scsi_buf *psb, *next_psb; + u16 xri = 0; + u16 rxid = 0; + struct lpfc_io_buf *psb, *next_psb; + struct lpfc_sli4_hdw_queue *qp; unsigned long iflag = 0; struct lpfc_iocbq *iocbq; int i; struct lpfc_nodelist *ndlp; int rrq_empty = 0; struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring; + struct scsi_cmnd *cmd; + int offline = 0; if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) return; + offline = pci_channel_offline(phba->pcidev); + if (!offline) { + xri = bf_get(lpfc_wcqe_xa_xri, axri); + rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); + } + qp = &phba->sli4_hba.hdwq[idx]; spin_lock_irqsave(&phba->hbalock, iflag); - spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); + spin_lock(&qp->abts_io_buf_list_lock); list_for_each_entry_safe(psb, next_psb, - &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { + &qp->lpfc_abts_io_buf_list, list) { + if (offline) + xri = psb->cur_iocbq.sli4_xritag; if (psb->cur_iocbq.sli4_xritag == xri) { - list_del(&psb->list); - psb->exch_busy = 0; + list_del_init(&psb->list); + psb->flags &= ~LPFC_SBUF_XBUSY; psb->status = IOSTAT_SUCCESS; - spin_unlock( - &phba->sli4_hba.abts_scsi_buf_list_lock); + if (psb->cur_iocbq.cmd_flag & LPFC_IO_NVME) { + qp->abts_nvme_io_bufs--; + spin_unlock(&qp->abts_io_buf_list_lock); + spin_unlock_irqrestore(&phba->hbalock, iflag); + if (!offline) { + lpfc_sli4_nvme_xri_aborted(phba, axri, + psb); + return; + } + lpfc_sli4_nvme_pci_offline_aborted(phba, psb); + spin_lock_irqsave(&phba->hbalock, iflag); + spin_lock(&qp->abts_io_buf_list_lock); + continue; + } + qp->abts_scsi_io_bufs--; + spin_unlock(&qp->abts_io_buf_list_lock); + if (psb->rdata && psb->rdata->pnode) ndlp = psb->rdata->pnode; else ndlp = NULL; + spin_unlock_irqrestore(&phba->hbalock, iflag); + spin_lock_irqsave(&phba->rrq_list_lock, iflag); rrq_empty = list_empty(&phba->active_rrq_list); - spin_unlock_irqrestore(&phba->hbalock, iflag); - if (ndlp) { + spin_unlock_irqrestore(&phba->rrq_list_lock, iflag); + if (ndlp && !offline) { lpfc_set_rrq_active(phba, ndlp, psb->cur_iocbq.sli4_lxritag, rxid, 1); lpfc_sli4_abts_err_handler(phba, ndlp, axri); } - lpfc_release_scsi_buf_s4(phba, psb); - if (rrq_empty) - lpfc_worker_wake_up(phba); - return; - } - } - spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); - for (i = 1; i <= phba->sli.last_iotag; i++) { - iocbq = phba->sli.iocbq_lookup[i]; - if (!(iocbq->iocb_flag & LPFC_IO_FCP) || - (iocbq->iocb_flag & LPFC_IO_LIBDFC)) - continue; - if (iocbq->sli4_xritag != xri) - continue; - psb = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); - psb->exch_busy = 0; - spin_unlock_irqrestore(&phba->hbalock, iflag); - if (!list_empty(&pring->txq)) - lpfc_worker_wake_up(phba); - return; + if (phba->cfg_fcp_wait_abts_rsp || offline) { + spin_lock_irqsave(&psb->buf_lock, iflag); + cmd = psb->pCmd; + psb->pCmd = NULL; + spin_unlock_irqrestore(&psb->buf_lock, iflag); - } - spin_unlock_irqrestore(&phba->hbalock, iflag); -} - -/** - * lpfc_sli4_post_scsi_sgl_list - Post blocks of scsi buffer sgls from a list - * @phba: pointer to lpfc hba data structure. - * @post_sblist: pointer to the scsi buffer list. - * - * This routine walks a list of scsi buffers that was passed in. It attempts - * to construct blocks of scsi buffer sgls which contains contiguous xris and - * uses the non-embedded SGL block post mailbox commands to post to the port. - * For single SCSI buffer sgl with non-contiguous xri, if any, it shall use - * embedded SGL post mailbox command for posting. The @post_sblist passed in - * must be local list, thus no lock is needed when manipulate the list. - * - * Returns: 0 = failure, non-zero number of successfully posted buffers. - **/ -static int -lpfc_sli4_post_scsi_sgl_list(struct lpfc_hba *phba, - struct list_head *post_sblist, int sb_count) -{ - struct lpfc_scsi_buf *psb, *psb_next; - int status, sgl_size; - int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; - dma_addr_t pdma_phys_bpl1; - int last_xritag = NO_XRI; - LIST_HEAD(prep_sblist); - LIST_HEAD(blck_sblist); - LIST_HEAD(scsi_sblist); - - /* sanity check */ - if (sb_count <= 0) - return -EINVAL; - - sgl_size = phba->cfg_sg_dma_buf_size - - (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); + /* The sdev is not guaranteed to be valid post + * scsi_done upcall. + */ + if (cmd) + scsi_done(cmd); - list_for_each_entry_safe(psb, psb_next, post_sblist, list) { - list_del_init(&psb->list); - block_cnt++; - if ((last_xritag != NO_XRI) && - (psb->cur_iocbq.sli4_xritag != last_xritag + 1)) { - /* a hole in xri block, form a sgl posting block */ - list_splice_init(&prep_sblist, &blck_sblist); - post_cnt = block_cnt - 1; - /* prepare list for next posting block */ - list_add_tail(&psb->list, &prep_sblist); - block_cnt = 1; - } else { - /* prepare list for next posting block */ - list_add_tail(&psb->list, &prep_sblist); - /* enough sgls for non-embed sgl mbox command */ - if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { - list_splice_init(&prep_sblist, &blck_sblist); - post_cnt = block_cnt; - block_cnt = 0; - } - } - num_posting++; - last_xritag = psb->cur_iocbq.sli4_xritag; - - /* end of repost sgl list condition for SCSI buffers */ - if (num_posting == sb_count) { - if (post_cnt == 0) { - /* last sgl posting block */ - list_splice_init(&prep_sblist, &blck_sblist); - post_cnt = block_cnt; - } else if (block_cnt == 1) { - /* last single sgl with non-contiguous xri */ - if (sgl_size > SGL_PAGE_SIZE) - pdma_phys_bpl1 = psb->dma_phys_bpl + - SGL_PAGE_SIZE; - else - pdma_phys_bpl1 = 0; - status = lpfc_sli4_post_sgl(phba, - psb->dma_phys_bpl, - pdma_phys_bpl1, - psb->cur_iocbq.sli4_xritag); - if (status) { - /* failure, put on abort scsi list */ - psb->exch_busy = 1; - } else { - /* success, put on SCSI buffer list */ - psb->exch_busy = 0; - psb->status = IOSTAT_SUCCESS; - num_posted++; - } - /* success, put on SCSI buffer sgl list */ - list_add_tail(&psb->list, &scsi_sblist); + /* + * We expect there is an abort thread waiting + * for command completion wake up the thread. + */ + spin_lock_irqsave(&psb->buf_lock, iflag); + psb->cur_iocbq.cmd_flag &= + ~LPFC_DRIVER_ABORTED; + if (psb->waitq) + wake_up(psb->waitq); + spin_unlock_irqrestore(&psb->buf_lock, iflag); } - } - /* continue until a nembed page worth of sgls */ - if (post_cnt == 0) + lpfc_release_scsi_buf_s4(phba, psb); + if (rrq_empty) + lpfc_worker_wake_up(phba); + if (!offline) + return; + spin_lock_irqsave(&phba->hbalock, iflag); + spin_lock(&qp->abts_io_buf_list_lock); continue; - - /* post block of SCSI buffer list sgls */ - status = lpfc_sli4_post_scsi_sgl_block(phba, &blck_sblist, - post_cnt); - - /* don't reset xirtag due to hole in xri block */ - if (block_cnt == 0) - last_xritag = NO_XRI; - - /* reset SCSI buffer post count for next round of posting */ - post_cnt = 0; - - /* put posted SCSI buffer-sgl posted on SCSI buffer sgl list */ - while (!list_empty(&blck_sblist)) { - list_remove_head(&blck_sblist, psb, - struct lpfc_scsi_buf, list); - if (status) { - /* failure, put on abort scsi list */ - psb->exch_busy = 1; - } else { - /* success, put on SCSI buffer list */ - psb->exch_busy = 0; - psb->status = IOSTAT_SUCCESS; - num_posted++; - } - list_add_tail(&psb->list, &scsi_sblist); } } - /* Push SCSI buffers with sgl posted to the availble list */ - while (!list_empty(&scsi_sblist)) { - list_remove_head(&scsi_sblist, psb, - struct lpfc_scsi_buf, list); - lpfc_release_scsi_buf_s4(phba, psb); - } - return num_posted; -} - -/** - * lpfc_sli4_repost_scsi_sgl_list - Repost all the allocated scsi buffer sgls - * @phba: pointer to lpfc hba data structure. - * - * This routine walks the list of scsi buffers that have been allocated and - * repost them to the port by using SGL block post. This is needed after a - * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine - * is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list - * to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers. - * - * Returns: 0 = success, non-zero failure. - **/ -int -lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *phba) -{ - LIST_HEAD(post_sblist); - int num_posted, rc = 0; - - /* get all SCSI buffers need to repost to a local list */ - spin_lock_irq(&phba->scsi_buf_list_get_lock); - spin_lock(&phba->scsi_buf_list_put_lock); - list_splice_init(&phba->lpfc_scsi_buf_list_get, &post_sblist); - list_splice(&phba->lpfc_scsi_buf_list_put, &post_sblist); - spin_unlock(&phba->scsi_buf_list_put_lock); - spin_unlock_irq(&phba->scsi_buf_list_get_lock); - - /* post the list of scsi buffer sgls to port if available */ - if (!list_empty(&post_sblist)) { - num_posted = lpfc_sli4_post_scsi_sgl_list(phba, &post_sblist, - phba->sli4_hba.scsi_xri_cnt); - /* failed to post any scsi buffer, return error */ - if (num_posted == 0) - rc = -EIO; - } - return rc; -} - -/** - * lpfc_new_scsi_buf_s4 - Scsi buffer allocator for HBA with SLI4 IF spec - * @vport: The virtual port for which this call being executed. - * @num_to_allocate: The requested number of buffers to allocate. - * - * This routine allocates scsi buffers for device with SLI-4 interface spec, - * the scsi buffer contains all the necessary information needed to initiate - * a SCSI I/O. After allocating up to @num_to_allocate SCSI buffers and put - * them on a list, it post them to the port by using SGL block post. - * - * Return codes: - * int - number of scsi buffers that were allocated and posted. - * 0 = failure, less than num_to_alloc is a partial failure. - **/ -static int -lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc) -{ - struct lpfc_hba *phba = vport->phba; - struct lpfc_scsi_buf *psb; - struct sli4_sge *sgl; - IOCB_t *iocb; - dma_addr_t pdma_phys_fcp_cmd; - dma_addr_t pdma_phys_fcp_rsp; - dma_addr_t pdma_phys_bpl; - uint16_t iotag, lxri = 0; - int bcnt, num_posted, sgl_size; - LIST_HEAD(prep_sblist); - LIST_HEAD(post_sblist); - LIST_HEAD(scsi_sblist); - - sgl_size = phba->cfg_sg_dma_buf_size - - (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); - - lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, - "9068 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", - num_to_alloc, phba->cfg_sg_dma_buf_size, sgl_size, - (int)sizeof(struct fcp_cmnd), - (int)sizeof(struct fcp_rsp)); + spin_unlock(&qp->abts_io_buf_list_lock); + if (!offline) { + for (i = 1; i <= phba->sli.last_iotag; i++) { + iocbq = phba->sli.iocbq_lookup[i]; - for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { - psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); - if (!psb) - break; - /* - * Get memory from the pci pool to map the virt space to - * pci bus space for an I/O. The DMA buffer includes space - * for the struct fcp_cmnd, struct fcp_rsp and the number - * of bde's necessary to support the sg_tablesize. - */ - psb->data = pci_pool_zalloc(phba->lpfc_sg_dma_buf_pool, - GFP_KERNEL, &psb->dma_handle); - if (!psb->data) { - kfree(psb); - break; - } - - /* - * 4K Page alignment is CRITICAL to BlockGuard, double check - * to be sure. - */ - if (phba->cfg_enable_bg && (((unsigned long)(psb->data) & - (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) { - pci_pool_free(phba->lpfc_sg_dma_buf_pool, - psb->data, psb->dma_handle); - kfree(psb); - break; - } - - - lxri = lpfc_sli4_next_xritag(phba); - if (lxri == NO_XRI) { - pci_pool_free(phba->lpfc_sg_dma_buf_pool, - psb->data, psb->dma_handle); - kfree(psb); - break; - } - - /* Allocate iotag for psb->cur_iocbq. */ - iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); - if (iotag == 0) { - pci_pool_free(phba->lpfc_sg_dma_buf_pool, - psb->data, psb->dma_handle); - kfree(psb); - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "3368 Failed to allocate IOTAG for" - " XRI:0x%x\n", lxri); - lpfc_sli4_free_xri(phba, lxri); - break; + if (!(iocbq->cmd_flag & LPFC_IO_FCP) || + (iocbq->cmd_flag & LPFC_IO_LIBDFC)) + continue; + if (iocbq->sli4_xritag != xri) + continue; + psb = container_of(iocbq, struct lpfc_io_buf, cur_iocbq); + psb->flags &= ~LPFC_SBUF_XBUSY; + spin_unlock_irqrestore(&phba->hbalock, iflag); + if (test_bit(HBA_SETUP, &phba->hba_flag) && + !list_empty(&pring->txq)) + lpfc_worker_wake_up(phba); + return; } - psb->cur_iocbq.sli4_lxritag = lxri; - psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; - psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; - psb->fcp_bpl = psb->data; - psb->fcp_cmnd = (psb->data + sgl_size); - psb->fcp_rsp = (struct fcp_rsp *)((uint8_t *)psb->fcp_cmnd + - sizeof(struct fcp_cmnd)); - - /* Initialize local short-hand pointers. */ - sgl = (struct sli4_sge *)psb->fcp_bpl; - pdma_phys_bpl = psb->dma_handle; - pdma_phys_fcp_cmd = (psb->dma_handle + sgl_size); - pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); - - /* - * The first two bdes are the FCP_CMD and FCP_RSP. - * The balance are sg list bdes. Initialize the - * first two and leave the rest for queuecommand. - */ - sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); - sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); - sgl->word2 = le32_to_cpu(sgl->word2); - bf_set(lpfc_sli4_sge_last, sgl, 0); - sgl->word2 = cpu_to_le32(sgl->word2); - sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); - sgl++; - - /* Setup the physical region for the FCP RSP */ - sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); - sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); - sgl->word2 = le32_to_cpu(sgl->word2); - bf_set(lpfc_sli4_sge_last, sgl, 1); - sgl->word2 = cpu_to_le32(sgl->word2); - sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); - - /* - * Since the IOCB for the FCP I/O is built into this - * lpfc_scsi_buf, initialize it with all known data now. - */ - iocb = &psb->cur_iocbq.iocb; - iocb->un.fcpi64.bdl.ulpIoTag32 = 0; - iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64; - /* setting the BLP size to 2 * sizeof BDE may not be correct. - * We are setting the bpl to point to out sgl. An sgl's - * entries are 16 bytes, a bpl entries are 12 bytes. - */ - iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); - iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd); - iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd); - iocb->ulpBdeCount = 1; - iocb->ulpLe = 1; - iocb->ulpClass = CLASS3; - psb->cur_iocbq.context1 = psb; - psb->dma_phys_bpl = pdma_phys_bpl; - - /* add the scsi buffer to a post list */ - list_add_tail(&psb->list, &post_sblist); - spin_lock_irq(&phba->scsi_buf_list_get_lock); - phba->sli4_hba.scsi_xri_cnt++; - spin_unlock_irq(&phba->scsi_buf_list_get_lock); - } - lpfc_printf_log(phba, KERN_INFO, LOG_BG | LOG_FCP, - "3021 Allocate %d out of %d requested new SCSI " - "buffers\n", bcnt, num_to_alloc); - - /* post the list of scsi buffer sgls to port if available */ - if (!list_empty(&post_sblist)) - num_posted = lpfc_sli4_post_scsi_sgl_list(phba, - &post_sblist, bcnt); - else - num_posted = 0; - - return num_posted; -} - -/** - * lpfc_new_scsi_buf - Wrapper funciton for scsi buffer allocator - * @vport: The virtual port for which this call being executed. - * @num_to_allocate: The requested number of buffers to allocate. - * - * This routine wraps the actual SCSI buffer allocator function pointer from - * the lpfc_hba struct. - * - * Return codes: - * int - number of scsi buffers that were allocated. - * 0 = failure, less than num_to_alloc is a partial failure. - **/ -static inline int -lpfc_new_scsi_buf(struct lpfc_vport *vport, int num_to_alloc) -{ - return vport->phba->lpfc_new_scsi_buf(vport, num_to_alloc); + } + spin_unlock_irqrestore(&phba->hbalock, iflag); } /** * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA * @phba: The HBA for which this call is being executed. + * @ndlp: pointer to a node-list data structure. + * @cmnd: Pointer to scsi_cmnd data structure. * * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list * and returns to caller. @@ -970,15 +558,16 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport, int num_to_alloc) * NULL - Error * Pointer to lpfc_scsi_buf - Success **/ -static struct lpfc_scsi_buf* -lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) +static struct lpfc_io_buf * +lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, + struct scsi_cmnd *cmnd) { - struct lpfc_scsi_buf * lpfc_cmd = NULL; + struct lpfc_io_buf *lpfc_cmd = NULL; struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get; unsigned long iflag = 0; spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); - list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_scsi_buf, + list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_io_buf, list); if (!lpfc_cmd) { spin_lock(&phba->scsi_buf_list_put_lock); @@ -986,64 +575,117 @@ lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) &phba->lpfc_scsi_buf_list_get); INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); list_remove_head(scsi_buf_list_get, lpfc_cmd, - struct lpfc_scsi_buf, list); + struct lpfc_io_buf, list); spin_unlock(&phba->scsi_buf_list_put_lock); } spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); + + if (lpfc_ndlp_check_qdepth(phba, ndlp) && lpfc_cmd) { + atomic_inc(&ndlp->cmd_pending); + lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH; + } return lpfc_cmd; } /** - * lpfc_get_scsi_buf_s4 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA + * lpfc_get_scsi_buf_s4 - Get a scsi buffer from io_buf_list of the HBA * @phba: The HBA for which this call is being executed. + * @ndlp: pointer to a node-list data structure. + * @cmnd: Pointer to scsi_cmnd data structure. * - * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list + * This routine removes a scsi buffer from head of @hdwq io_buf_list * and returns to caller. * * Return codes: * NULL - Error * Pointer to lpfc_scsi_buf - Success **/ -static struct lpfc_scsi_buf* -lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) +static struct lpfc_io_buf * +lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, + struct scsi_cmnd *cmnd) { - struct lpfc_scsi_buf *lpfc_cmd, *lpfc_cmd_next; - unsigned long iflag = 0; - int found = 0; - - spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); - list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, - &phba->lpfc_scsi_buf_list_get, list) { - if (lpfc_test_rrq_active(phba, ndlp, - lpfc_cmd->cur_iocbq.sli4_lxritag)) - continue; - list_del(&lpfc_cmd->list); - found = 1; - break; + struct lpfc_io_buf *lpfc_cmd; + struct lpfc_sli4_hdw_queue *qp; + struct sli4_sge_le *sgl; + dma_addr_t pdma_phys_fcp_rsp; + dma_addr_t pdma_phys_fcp_cmd; + uint32_t cpu, idx; + int tag; + struct fcp_cmd_rsp_buf *tmp = NULL; + + cpu = raw_smp_processor_id(); + if (cmnd && phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) { + tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmnd)); + idx = blk_mq_unique_tag_to_hwq(tag); + } else { + idx = phba->sli4_hba.cpu_map[cpu].hdwq; } - if (!found) { - spin_lock(&phba->scsi_buf_list_put_lock); - list_splice(&phba->lpfc_scsi_buf_list_put, - &phba->lpfc_scsi_buf_list_get); - INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); - spin_unlock(&phba->scsi_buf_list_put_lock); - list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, - &phba->lpfc_scsi_buf_list_get, list) { - if (lpfc_test_rrq_active( - phba, ndlp, lpfc_cmd->cur_iocbq.sli4_lxritag)) - continue; - list_del(&lpfc_cmd->list); - found = 1; - break; - } + + lpfc_cmd = lpfc_get_io_buf(phba, ndlp, idx, + !phba->cfg_xri_rebalancing); + if (!lpfc_cmd) { + qp = &phba->sli4_hba.hdwq[idx]; + qp->empty_io_bufs++; + return NULL; } - spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); - if (!found) + + /* Setup key fields in buffer that may have been changed + * if other protocols used this buffer. + */ + lpfc_cmd->cur_iocbq.cmd_flag = LPFC_IO_FCP; + lpfc_cmd->prot_seg_cnt = 0; + lpfc_cmd->seg_cnt = 0; + lpfc_cmd->timeout = 0; + lpfc_cmd->flags = 0; + lpfc_cmd->start_time = jiffies; + lpfc_cmd->waitq = NULL; + lpfc_cmd->cpu = cpu; +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + lpfc_cmd->prot_data_type = 0; +#endif + tmp = lpfc_get_cmd_rsp_buf_per_hdwq(phba, lpfc_cmd); + if (!tmp) { + lpfc_release_io_buf(phba, lpfc_cmd, lpfc_cmd->hdwq); return NULL; + } + + lpfc_cmd->fcp_cmnd = tmp->fcp_cmnd; + lpfc_cmd->fcp_rsp = tmp->fcp_rsp; + + /* + * The first two SGEs are the FCP_CMD and FCP_RSP. + * The balance are sg list bdes. Initialize the + * first two and leave the rest for queuecommand. + */ + sgl = (struct sli4_sge_le *)lpfc_cmd->dma_sgl; + pdma_phys_fcp_cmd = tmp->fcp_cmd_rsp_dma_handle; + sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); + sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); + bf_set_le32(lpfc_sli4_sge_last, sgl, 0); + if (cmnd && cmnd->cmd_len > LPFC_FCP_CDB_LEN) + sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd32)); + else + sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); + + sgl++; + + /* Setup the physical region for the FCP RSP */ + pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd32); + sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); + sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); + bf_set_le32(lpfc_sli4_sge_last, sgl, 1); + sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); + + if (lpfc_ndlp_check_qdepth(phba, ndlp)) { + atomic_inc(&ndlp->cmd_pending); + lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH; + } return lpfc_cmd; } /** * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA * @phba: The HBA for which this call is being executed. + * @ndlp: pointer to a node-list data structure. + * @cmnd: Pointer to scsi_cmnd data structure. * * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list * and returns to caller. @@ -1052,14 +694,15 @@ lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) * NULL - Error * Pointer to lpfc_scsi_buf - Success **/ -static struct lpfc_scsi_buf* -lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) +static struct lpfc_io_buf* +lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, + struct scsi_cmnd *cmnd) { - return phba->lpfc_get_scsi_buf(phba, ndlp); + return phba->lpfc_get_scsi_buf(phba, ndlp, cmnd); } /** - * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf list + * lpfc_release_scsi_buf_s3 - Return a scsi buffer back to hba scsi buf list * @phba: The Hba for which this call is being executed. * @psb: The scsi buffer which is being released. * @@ -1067,17 +710,16 @@ lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) * lpfc_scsi_buf_list list. **/ static void -lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) +lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb) { unsigned long iflag = 0; psb->seg_cnt = 0; - psb->nonsg_phys = 0; psb->prot_seg_cnt = 0; spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); psb->pCmd = NULL; - psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; + psb->cur_iocbq.cmd_flag = LPFC_IO_FCP; list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); } @@ -1087,34 +729,30 @@ lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) * @phba: The Hba for which this call is being executed. * @psb: The scsi buffer which is being released. * - * This routine releases @psb scsi buffer by adding it to tail of @phba - * lpfc_scsi_buf_list list. For SLI4 XRI's are tied to the scsi buffer + * This routine releases @psb scsi buffer by adding it to tail of @hdwq + * io_buf_list list. For SLI4 XRI's are tied to the scsi buffer * and cannot be reused for at least RA_TOV amount of time if it was * aborted. **/ static void -lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) +lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb) { + struct lpfc_sli4_hdw_queue *qp; unsigned long iflag = 0; psb->seg_cnt = 0; - psb->nonsg_phys = 0; psb->prot_seg_cnt = 0; - if (psb->exch_busy) { - spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock, - iflag); - psb->pCmd = NULL; - list_add_tail(&psb->list, - &phba->sli4_hba.lpfc_abts_scsi_buf_list); - spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock, - iflag); + qp = psb->hdwq; + if (psb->flags & LPFC_SBUF_XBUSY) { + spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); + if (!phba->cfg_fcp_wait_abts_rsp) + psb->pCmd = NULL; + list_add_tail(&psb->list, &qp->lpfc_abts_io_buf_list); + qp->abts_scsi_io_bufs++; + spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); } else { - psb->pCmd = NULL; - psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; - spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); - list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); - spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); + lpfc_release_io_buf(phba, (struct lpfc_io_buf *)psb, qp); } } @@ -1127,13 +765,35 @@ lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) * lpfc_scsi_buf_list list. **/ static void -lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) +lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb) { + if ((psb->flags & LPFC_SBUF_BUMP_QDEPTH) && psb->ndlp) + atomic_dec(&psb->ndlp->cmd_pending); + psb->flags &= ~LPFC_SBUF_BUMP_QDEPTH; phba->lpfc_release_scsi_buf(phba, psb); } /** + * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB + * @data: A pointer to the immediate command data portion of the IOCB. + * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. + * + * The routine copies the entire FCP command from @fcp_cmnd to @data while + * byte swapping the data to big endian format for transmission on the wire. + **/ +static void +lpfc_fcpcmd_to_iocb(u8 *data, struct fcp_cmnd *fcp_cmnd) +{ + int i, j; + + for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); + i += sizeof(uint32_t), j++) { + ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); + } +} + +/** * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec * @phba: The Hba for which this call is being executed. * @lpfc_cmd: The scsi buffer which is going to be mapped. @@ -1148,12 +808,12 @@ lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) * 0 - Success **/ static int -lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) +lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) { struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; struct scatterlist *sgel = NULL; struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; - struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; + struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl; struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; @@ -1170,7 +830,7 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) bpl += 2; if (scsi_sg_count(scsi_cmnd)) { /* - * The driver stores the segment count returned from pci_map_sg + * The driver stores the segment count returned from dma_map_sg * because this a count of dma-mappings used to map the use_sg * pages. They are not guaranteed to be the same for those * architectures that implement an IOMMU. @@ -1183,14 +843,15 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) lpfc_cmd->seg_cnt = nseg; if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9064 BLKGRD: %s: Too many sg segments from " - "dma_map_sg. Config %d, seg_cnt %d\n", - __func__, phba->cfg_sg_seg_cnt, - lpfc_cmd->seg_cnt); + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9064 BLKGRD: %s: Too many sg segments" + " from dma_map_sg. Config %d, seg_cnt" + " %d\n", __func__, phba->cfg_sg_seg_cnt, + lpfc_cmd->seg_cnt); + WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); lpfc_cmd->seg_cnt = 0; scsi_dma_unmap(scsi_cmnd); - return 1; + return 2; } /* @@ -1206,7 +867,7 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) physaddr = sg_dma_address(sgel); if (phba->sli_rev == 3 && !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && - !(iocbq->iocb_flag & DSS_SECURITY_OP) && + !(iocbq->cmd_flag & DSS_SECURITY_OP) && nseg <= LPFC_EXT_DATA_BDE_COUNT) { data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; data_bde->tus.f.bdeSize = sg_dma_len(sgel); @@ -1234,7 +895,7 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) */ if (phba->sli_rev == 3 && !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && - !(iocbq->iocb_flag & DSS_SECURITY_OP)) { + !(iocbq->cmd_flag & DSS_SECURITY_OP)) { if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { /* * The extended IOCB format can only fit 3 BDE or a BPL. @@ -1268,6 +929,7 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * we need to set word 4 of IOCB here */ iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); + lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); return 0; } @@ -1279,10 +941,10 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) #define BG_ERR_TGT 0x2 /* Return BG_ERR_SWAP if swapping CSUM<-->CRC is required for error injection */ #define BG_ERR_SWAP 0x10 -/** +/* * Return BG_ERR_CHECK if disabling Guard/Ref/App checking is required for * error injection - **/ + */ #define BG_ERR_CHECK 0x20 /** @@ -1291,7 +953,7 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * @sc: The SCSI command to examine * @reftag: (out) BlockGuard reference tag for transmitted data * @apptag: (out) BlockGuard application tag for transmitted data - * @new_guard (in) Value to replace CRC with if needed + * @new_guard: (in) Value to replace CRC with if needed * * Returns BG_ERR_* bit mask or 0 if request ignored **/ @@ -1300,14 +962,14 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) { struct scatterlist *sgpe; /* s/g prot entry */ - struct lpfc_scsi_buf *lpfc_cmd = NULL; + struct lpfc_io_buf *lpfc_cmd = NULL; struct scsi_dif_tuple *src = NULL; struct lpfc_nodelist *ndlp; struct lpfc_rport_data *rdata; uint32_t op = scsi_get_prot_op(sc); uint32_t blksize; uint32_t numblks; - sector_t lba; + u32 lba; int rc = 0; int blockoff = 0; @@ -1315,19 +977,19 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, return 0; sgpe = scsi_prot_sglist(sc); - lba = scsi_get_lba(sc); + lba = scsi_prot_ref_tag(sc); /* First check if we need to match the LBA */ if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { - blksize = lpfc_cmd_blksize(sc); + blksize = scsi_prot_interval(sc); numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; /* Make sure we have the right LBA if one is specified */ - if ((phba->lpfc_injerr_lba < lba) || - (phba->lpfc_injerr_lba >= (lba + numblks))) + if (phba->lpfc_injerr_lba < (u64)lba || + (phba->lpfc_injerr_lba >= (u64)(lba + numblks))) return 0; if (sgpe) { - blockoff = phba->lpfc_injerr_lba - lba; + blockoff = phba->lpfc_injerr_lba - (u64)lba; numblks = sg_dma_len(sgpe) / sizeof(struct scsi_dif_tuple); if (numblks < blockoff) @@ -1359,7 +1021,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, if (sgpe) { src = (struct scsi_dif_tuple *)sg_virt(sgpe); src += blockoff; - lpfc_cmd = (struct lpfc_scsi_buf *)sc->host_scribble; + lpfc_cmd = (struct lpfc_io_buf *)sc->host_scribble; } /* Should we change the Reference Tag */ @@ -1376,7 +1038,8 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, * inserted in middle of the IO. */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, + LOG_TRACE_EVENT, "9076 BLKGRD: Injecting reftag error: " "write lba x%lx + x%x oldrefTag x%x\n", (unsigned long)lba, blockoff, @@ -1407,7 +1070,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, break; } - /* Drop thru */ + fallthrough; case SCSI_PROT_WRITE_INSERT: /* * For WRITE_INSERT, force the error @@ -1426,7 +1089,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, } rc = BG_ERR_TGT | BG_ERR_CHECK; - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9078 BLKGRD: Injecting reftag error: " "write lba x%lx\n", (unsigned long)lba); break; @@ -1447,7 +1110,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, } rc = BG_ERR_INIT; - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9077 BLKGRD: Injecting reftag error: " "write lba x%lx\n", (unsigned long)lba); break; @@ -1474,7 +1137,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, } rc = BG_ERR_INIT; - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9079 BLKGRD: Injecting reftag error: " "read lba x%lx\n", (unsigned long)lba); break; @@ -1496,7 +1159,8 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, * inserted in middle of the IO. */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, + LOG_TRACE_EVENT, "9080 BLKGRD: Injecting apptag error: " "write lba x%lx + x%x oldappTag x%x\n", (unsigned long)lba, blockoff, @@ -1526,7 +1190,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, rc = BG_ERR_TGT | BG_ERR_CHECK; break; } - /* Drop thru */ + fallthrough; case SCSI_PROT_WRITE_INSERT: /* * For WRITE_INSERT, force the @@ -1545,7 +1209,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, } rc = BG_ERR_TGT | BG_ERR_CHECK; - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "0813 BLKGRD: Injecting apptag error: " "write lba x%lx\n", (unsigned long)lba); break; @@ -1566,7 +1230,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, } rc = BG_ERR_INIT; - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "0812 BLKGRD: Injecting apptag error: " "write lba x%lx\n", (unsigned long)lba); break; @@ -1593,7 +1257,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, } rc = BG_ERR_INIT; - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "0814 BLKGRD: Injecting apptag error: " "read lba x%lx\n", (unsigned long)lba); break; @@ -1608,7 +1272,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, switch (op) { case SCSI_PROT_WRITE_PASS: rc = BG_ERR_CHECK; - /* Drop thru */ + fallthrough; case SCSI_PROT_WRITE_INSERT: /* @@ -1628,7 +1292,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, rc |= BG_ERR_TGT | BG_ERR_SWAP; /* Signals the caller to swap CRC->CSUM */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "0817 BLKGRD: Injecting guard error: " "write lba x%lx\n", (unsigned long)lba); break; @@ -1650,7 +1314,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, rc = BG_ERR_INIT | BG_ERR_SWAP; /* Signals the caller to swap CRC->CSUM */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "0816 BLKGRD: Injecting guard error: " "write lba x%lx\n", (unsigned long)lba); break; @@ -1678,7 +1342,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, rc = BG_ERR_INIT | BG_ERR_SWAP; /* Signals the caller to swap CRC->CSUM */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "0818 BLKGRD: Injecting guard error: " "read lba x%lx\n", (unsigned long)lba); } @@ -1694,8 +1358,8 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, * the specified SCSI command. * @phba: The Hba for which this call is being executed. * @sc: The SCSI command to examine - * @txopt: (out) BlockGuard operation for transmitted data - * @rxopt: (out) BlockGuard operation for received data + * @txop: (out) BlockGuard operation for transmitted data + * @rxop: (out) BlockGuard operation for received data * * Returns: zero on success; non-zero if tx and/or rx op cannot be determined * @@ -1706,7 +1370,7 @@ lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, { uint8_t ret = 0; - if (lpfc_cmd_guard_csum(sc)) { + if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) { switch (scsi_get_prot_op(sc)) { case SCSI_PROT_READ_INSERT: case SCSI_PROT_WRITE_STRIP: @@ -1728,7 +1392,7 @@ lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, case SCSI_PROT_NORMAL: default: - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9063 BLKGRD: Bad op/guard:%d/IP combination\n", scsi_get_prot_op(sc)); ret = 1; @@ -1757,7 +1421,7 @@ lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, case SCSI_PROT_NORMAL: default: - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", scsi_get_prot_op(sc)); ret = 1; @@ -1774,8 +1438,8 @@ lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, * the specified SCSI command in order to force a guard tag error. * @phba: The Hba for which this call is being executed. * @sc: The SCSI command to examine - * @txopt: (out) BlockGuard operation for transmitted data - * @rxopt: (out) BlockGuard operation for received data + * @txop: (out) BlockGuard operation for transmitted data + * @rxop: (out) BlockGuard operation for received data * * Returns: zero on success; non-zero if tx and/or rx op cannot be determined * @@ -1784,9 +1448,8 @@ static int lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, uint8_t *txop, uint8_t *rxop) { - uint8_t ret = 0; - if (lpfc_cmd_guard_csum(sc)) { + if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) { switch (scsi_get_prot_op(sc)) { case SCSI_PROT_READ_INSERT: case SCSI_PROT_WRITE_STRIP: @@ -1837,7 +1500,7 @@ lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, } } - return ret; + return 0; } #endif @@ -1846,7 +1509,7 @@ lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, * @phba: The Hba for which this call is being executed. * @sc: pointer to scsi command we're working on * @bpl: pointer to buffer list for protection groups - * @datacnt: number of segments of data that have been dma mapped + * @datasegcnt: number of segments of data that have been dma mapped * * This function sets up BPL buffer list for protection groups of * type LPFC_PG_TYPE_NO_DIF @@ -1894,7 +1557,7 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, goto out; /* extract some info from the scsi command for pde*/ - reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ + reftag = scsi_prot_ref_tag(sc); #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -1931,12 +1594,12 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, * protection data is automatically generated, not checked. */ if (datadir == DMA_FROM_DEVICE) { - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) + if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) bf_set(pde6_ce, pde6, checking); else bf_set(pde6_ce, pde6, 0); - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) + if (sc->prot_flags & SCSI_PROT_REF_CHECK) bf_set(pde6_re, pde6, checking); else bf_set(pde6_re, pde6, 0); @@ -2022,7 +1685,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct lpfc_pde6 *pde6 = NULL; struct lpfc_pde7 *pde7 = NULL; dma_addr_t dataphysaddr, protphysaddr; - unsigned short curr_data = 0, curr_prot = 0; + unsigned short curr_prot = 0; unsigned int split_offset; unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; unsigned int protgrp_blks, protgrp_bytes; @@ -2043,8 +1706,8 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, sgde = scsi_sglist(sc); if (!sgpe || !sgde) { - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "9020 Invalid s/g entry: data=0x%p prot=0x%p\n", + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9020 Invalid s/g entry: data=x%px prot=x%px\n", sgpe, sgde); return 0; } @@ -2054,8 +1717,8 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, goto out; /* extract some info from the scsi command */ - blksize = lpfc_cmd_blksize(sc); - reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ + blksize = scsi_prot_interval(sc); + reftag = scsi_prot_ref_tag(sc); #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -2093,12 +1756,12 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, bf_set(pde6_optx, pde6, txop); bf_set(pde6_oprx, pde6, rxop); - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) + if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) bf_set(pde6_ce, pde6, checking); else bf_set(pde6_ce, pde6, 0); - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) + if (sc->prot_flags & SCSI_PROT_REF_CHECK) bf_set(pde6_re, pde6, checking); else bf_set(pde6_re, pde6, 0); @@ -2155,7 +1818,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, return num_bde + 1; if (!sgde) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9065 BLKGRD:%s Invalid data segment\n", __func__); return 0; @@ -2189,7 +1852,6 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, bpl->tus.w = le32_to_cpu(bpl->tus.w); num_bde++; - curr_data++; if (split_offset) break; @@ -2218,8 +1880,8 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, reftag += protgrp_blks; } else { /* if we're here, we have a bug */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9054 BLKGRD: bug in %s\n", __func__); + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9054 BLKGRD: bug in %s\n", __func__); } } while (!alldone); @@ -2233,7 +1895,8 @@ out: * @phba: The Hba for which this call is being executed. * @sc: pointer to scsi command we're working on * @sgl: pointer to buffer list for protection groups - * @datacnt: number of segments of data that have been dma mapped + * @datasegcnt: number of segments of data that have been dma mapped + * @lpfc_cmd: lpfc scsi command object pointer. * * This function sets up SGL buffer list for protection groups of * type LPFC_PG_TYPE_NO_DIF @@ -2257,15 +1920,16 @@ out: * * Returns the number of SGEs added to the SGL. **/ -static int +static uint32_t lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, - struct sli4_sge *sgl, int datasegcnt) + struct sli4_sge *sgl, int datasegcnt, + struct lpfc_io_buf *lpfc_cmd) { struct scatterlist *sgde = NULL; /* s/g data entry */ struct sli4_sge_diseed *diseed = NULL; dma_addr_t physaddr; - int i = 0, num_sge = 0, status; - uint32_t reftag; + int i = 0, status; + uint32_t reftag, num_sge = 0; uint8_t txop, rxop; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS uint32_t rc; @@ -2273,13 +1937,16 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, uint32_t checking = 1; uint32_t dma_len; uint32_t dma_offset = 0; + struct sli4_hybrid_sgl *sgl_xtra = NULL; + int j; + bool lsp_just_set = false; status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); if (status) goto out; /* extract some info from the scsi command for pde*/ - reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ + reftag = scsi_prot_ref_tag(sc); #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -2305,12 +1972,12 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, * protection data is automatically generated, not checked. */ if (sc->sc_data_direction == DMA_FROM_DEVICE) { - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) + if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); else bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) + if (sc->prot_flags & SCSI_PROT_REF_CHECK) bf_set(lpfc_sli4_sge_dif_re, diseed, checking); else bf_set(lpfc_sli4_sge_dif_re, diseed, 0); @@ -2332,23 +1999,64 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, sgl++; /* assumption: caller has already run dma_map_sg on command data */ - scsi_for_each_sg(sc, sgde, datasegcnt, i) { - physaddr = sg_dma_address(sgde); - dma_len = sg_dma_len(sgde); - sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); - sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); - if ((i + 1) == datasegcnt) - bf_set(lpfc_sli4_sge_last, sgl, 1); - else - bf_set(lpfc_sli4_sge_last, sgl, 0); - bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); - bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); + sgde = scsi_sglist(sc); + j = 3; + for (i = 0; i < datasegcnt; i++) { + /* clear it */ + sgl->word2 = 0; - sgl->sge_len = cpu_to_le32(dma_len); - dma_offset += dma_len; + /* do we need to expand the segment */ + if (!lsp_just_set && !((j + 1) % phba->border_sge_num) && + ((datasegcnt - 1) != i)) { + /* set LSP type */ + bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP); + + sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd); + + if (unlikely(!sgl_xtra)) { + lpfc_cmd->seg_cnt = 0; + return 0; + } + sgl->addr_lo = cpu_to_le32(putPaddrLow( + sgl_xtra->dma_phys_sgl)); + sgl->addr_hi = cpu_to_le32(putPaddrHigh( + sgl_xtra->dma_phys_sgl)); + + } else { + bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); + } + + if (!(bf_get(lpfc_sli4_sge_type, sgl) & LPFC_SGE_TYPE_LSP)) { + if ((datasegcnt - 1) == i) + bf_set(lpfc_sli4_sge_last, sgl, 1); + physaddr = sg_dma_address(sgde); + dma_len = sg_dma_len(sgde); + sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); + sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); + + bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); + sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = cpu_to_le32(dma_len); + + dma_offset += dma_len; + sgde = sg_next(sgde); + + sgl++; + num_sge++; + lsp_just_set = false; + + } else { + sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size); + + sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; + i = i - 1; + + lsp_just_set = true; + } + + j++; - sgl++; - num_sge++; } out: @@ -2362,6 +2070,7 @@ out: * @sgl: pointer to buffer list for protection groups * @datacnt: number of segments of data that have been dma mapped * @protcnt: number of segment of protection data that have been dma mapped + * @lpfc_cmd: lpfc scsi command object pointer. * * This function sets up SGL buffer list for protection groups of * type LPFC_PG_TYPE_DIF @@ -2392,15 +2101,16 @@ out: * * Returns the number of SGEs added to the SGL. **/ -static int +static uint32_t lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, - struct sli4_sge *sgl, int datacnt, int protcnt) + struct sli4_sge *sgl, int datacnt, int protcnt, + struct lpfc_io_buf *lpfc_cmd) { struct scatterlist *sgde = NULL; /* s/g data entry */ struct scatterlist *sgpe = NULL; /* s/g prot entry */ struct sli4_sge_diseed *diseed = NULL; dma_addr_t dataphysaddr, protphysaddr; - unsigned short curr_data = 0, curr_prot = 0; + unsigned short curr_prot = 0; unsigned int split_offset; unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; unsigned int protgrp_blks, protgrp_bytes; @@ -2415,15 +2125,16 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, uint32_t rc; #endif uint32_t checking = 1; - uint32_t dma_offset = 0; - int num_sge = 0; + uint32_t dma_offset = 0, num_sge = 0; + int j = 2; + struct sli4_hybrid_sgl *sgl_xtra = NULL; sgpe = scsi_prot_sglist(sc); sgde = scsi_sglist(sc); if (!sgpe || !sgde) { - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "9082 Invalid s/g entry: data=0x%p prot=0x%p\n", + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9082 Invalid s/g entry: data=x%px prot=x%px\n", sgpe, sgde); return 0; } @@ -2433,8 +2144,8 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, goto out; /* extract some info from the scsi command */ - blksize = lpfc_cmd_blksize(sc); - reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ + blksize = scsi_prot_interval(sc); + reftag = scsi_prot_ref_tag(sc); #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -2449,9 +2160,37 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, split_offset = 0; do { /* Check to see if we ran out of space */ - if (num_sge >= (phba->cfg_total_seg_cnt - 2)) + if ((num_sge >= (phba->cfg_total_seg_cnt - 2)) && + !(phba->cfg_xpsgl)) return num_sge + 3; + /* DISEED and DIF have to be together */ + if (!((j + 1) % phba->border_sge_num) || + !((j + 2) % phba->border_sge_num) || + !((j + 3) % phba->border_sge_num)) { + sgl->word2 = 0; + + /* set LSP type */ + bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP); + + sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd); + + if (unlikely(!sgl_xtra)) { + goto out; + } else { + sgl->addr_lo = cpu_to_le32(putPaddrLow( + sgl_xtra->dma_phys_sgl)); + sgl->addr_hi = cpu_to_le32(putPaddrHigh( + sgl_xtra->dma_phys_sgl)); + } + + sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size); + + sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; + j = 0; + } + /* setup DISEED with what we have */ diseed = (struct sli4_sge_diseed *) sgl; memset(diseed, 0, sizeof(struct sli4_sge_diseed)); @@ -2461,9 +2200,8 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, diseed->ref_tag = cpu_to_le32(reftag); diseed->ref_tag_tran = diseed->ref_tag; - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) { + if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) { bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); - } else { bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); /* @@ -2480,7 +2218,7 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, } - if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) + if (sc->prot_flags & SCSI_PROT_REF_CHECK) bf_set(lpfc_sli4_sge_dif_re, diseed, checking); else bf_set(lpfc_sli4_sge_dif_re, diseed, 0); @@ -2498,7 +2236,9 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, /* advance sgl and increment bde count */ num_sge++; + sgl++; + j++; /* setup the first BDE that points to protection buffer */ protphysaddr = sg_dma_address(sgpe) + protgroup_offset; @@ -2513,6 +2253,7 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = 0; protgrp_blks = protgroup_len / 8; protgrp_bytes = protgrp_blks * blksize; @@ -2533,78 +2274,123 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, /* setup SGE's for data blocks associated with DIF data */ pgdone = 0; subtotal = 0; /* total bytes processed for current prot grp */ + + sgl++; + j++; + while (!pgdone) { /* Check to see if we ran out of space */ - if (num_sge >= phba->cfg_total_seg_cnt) + if ((num_sge >= phba->cfg_total_seg_cnt) && + !phba->cfg_xpsgl) return num_sge + 1; if (!sgde) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9086 BLKGRD:%s Invalid data segment\n", __func__); return 0; } - sgl++; - dataphysaddr = sg_dma_address(sgde) + split_offset; - remainder = sg_dma_len(sgde) - split_offset; + if (!((j + 1) % phba->border_sge_num)) { + sgl->word2 = 0; - if ((subtotal + remainder) <= protgrp_bytes) { - /* we can use this whole buffer */ - dma_len = remainder; - split_offset = 0; + /* set LSP type */ + bf_set(lpfc_sli4_sge_type, sgl, + LPFC_SGE_TYPE_LSP); - if ((subtotal + remainder) == protgrp_bytes) - pgdone = 1; + sgl_xtra = lpfc_get_sgl_per_hdwq(phba, + lpfc_cmd); + + if (unlikely(!sgl_xtra)) { + goto out; + } else { + sgl->addr_lo = cpu_to_le32( + putPaddrLow(sgl_xtra->dma_phys_sgl)); + sgl->addr_hi = cpu_to_le32( + putPaddrHigh(sgl_xtra->dma_phys_sgl)); + } + + sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = cpu_to_le32( + phba->cfg_sg_dma_buf_size); + + sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; } else { - /* must split this buffer with next prot grp */ - dma_len = protgrp_bytes - subtotal; - split_offset += dma_len; - } + dataphysaddr = sg_dma_address(sgde) + + split_offset; - subtotal += dma_len; + remainder = sg_dma_len(sgde) - split_offset; - sgl->addr_lo = cpu_to_le32(putPaddrLow(dataphysaddr)); - sgl->addr_hi = cpu_to_le32(putPaddrHigh(dataphysaddr)); - bf_set(lpfc_sli4_sge_last, sgl, 0); - bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); - bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); + if ((subtotal + remainder) <= protgrp_bytes) { + /* we can use this whole buffer */ + dma_len = remainder; + split_offset = 0; - sgl->sge_len = cpu_to_le32(dma_len); - dma_offset += dma_len; + if ((subtotal + remainder) == + protgrp_bytes) + pgdone = 1; + } else { + /* must split this buffer with next + * prot grp + */ + dma_len = protgrp_bytes - subtotal; + split_offset += dma_len; + } - num_sge++; - curr_data++; + subtotal += dma_len; - if (split_offset) - break; + sgl->word2 = 0; + sgl->addr_lo = cpu_to_le32(putPaddrLow( + dataphysaddr)); + sgl->addr_hi = cpu_to_le32(putPaddrHigh( + dataphysaddr)); + bf_set(lpfc_sli4_sge_last, sgl, 0); + bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); + bf_set(lpfc_sli4_sge_type, sgl, + LPFC_SGE_TYPE_DATA); - /* Move to the next s/g segment if possible */ - sgde = sg_next(sgde); + sgl->sge_len = cpu_to_le32(dma_len); + dma_offset += dma_len; + + num_sge++; + + if (split_offset) { + sgl++; + j++; + break; + } + + /* Move to the next s/g segment if possible */ + sgde = sg_next(sgde); + + sgl++; + } + + j++; } if (protgroup_offset) { /* update the reference tag */ reftag += protgrp_blks; - sgl++; continue; } /* are we done ? */ if (curr_prot == protcnt) { + /* mark the last SGL */ + sgl--; bf_set(lpfc_sli4_sge_last, sgl, 1); alldone = 1; } else if (curr_prot < protcnt) { /* advance to next prot buffer */ sgpe = sg_next(sgpe); - sgl++; /* update the reference tag */ reftag += protgrp_blks; } else { /* if we're here, we have a bug */ - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9085 BLKGRD: bug in %s\n", __func__); + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9085 BLKGRD: bug in %s\n", __func__); } } while (!alldone); @@ -2644,7 +2430,7 @@ lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) break; default: if (phba) - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9021 Unsupported protection op:%d\n", op); break; @@ -2664,7 +2450,7 @@ lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) **/ static int lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, - struct lpfc_scsi_buf *lpfc_cmd) + struct lpfc_io_buf *lpfc_cmd) { struct scsi_cmnd *sc = lpfc_cmd->pCmd; int fcpdl; @@ -2688,7 +2474,7 @@ lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, * DIF (trailer) attached to it. Must ajust FCP data length * to account for the protection data. */ - fcpdl += (fcpdl / lpfc_cmd_blksize(sc)) * 8; + fcpdl += (fcpdl / scsi_prot_interval(sc)) * 8; return fcpdl; } @@ -2700,20 +2486,25 @@ lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, * * This is the protection/DIF aware version of * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the - * two functions eventually, but for now, it's here + * two functions eventually, but for now, it's here. + * RETURNS 0 - SUCCESS, + * 1 - Failed DMA map, retry. + * 2 - Invalid scsi cmd or prot-type. Do not rety. **/ static int lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, - struct lpfc_scsi_buf *lpfc_cmd) + struct lpfc_io_buf *lpfc_cmd) { struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; - struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; + struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl; IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; uint32_t num_bde = 0; int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; int prot_group_type = 0; int fcpdl; + int ret = 1; + struct lpfc_vport *vport = phba->pport; /* * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd @@ -2722,7 +2513,7 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, bpl += 2; if (scsi_sg_count(scsi_cmnd)) { /* - * The driver stores the segment count returned from pci_map_sg + * The driver stores the segment count returned from dma_map_sg * because this a count of dma-mappings used to map the use_sg * pages. They are not guaranteed to be the same for those * architectures that implement an IOMMU. @@ -2736,8 +2527,11 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, lpfc_cmd->seg_cnt = datasegcnt; /* First check if data segment count from SCSI Layer is good */ - if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) + if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { + WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); + ret = 2; goto err; + } prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); @@ -2745,14 +2539,18 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, case LPFC_PG_TYPE_NO_DIF: /* Here we need to add a PDE5 and PDE6 to the count */ - if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) + if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) { + ret = 2; goto err; + } num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, datasegcnt); /* we should have 2 or more entries in buffer list */ - if (num_bde < 2) + if (num_bde < 2) { + ret = 2; goto err; + } break; case LPFC_PG_TYPE_DIF_BUF: @@ -2776,15 +2574,19 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, * protection data segment. */ if ((lpfc_cmd->prot_seg_cnt * 4) > - (phba->cfg_total_seg_cnt - 2)) + (phba->cfg_total_seg_cnt - 2)) { + ret = 2; goto err; + } num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, datasegcnt, protsegcnt); /* we should have 3 or more entries in buffer list */ if ((num_bde < 3) || - (num_bde > phba->cfg_total_seg_cnt)) + (num_bde > phba->cfg_total_seg_cnt)) { + ret = 2; goto err; + } break; case LPFC_PG_TYPE_INVALID: @@ -2792,10 +2594,10 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, scsi_dma_unmap(scsi_cmnd); lpfc_cmd->seg_cnt = 0; - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9022 Unexpected protection group %i\n", prot_group_type); - return 1; + return 2; } } @@ -2811,7 +2613,7 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, iocb_cmd->ulpLe = 1; fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); - fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); + fcp_cmnd->fcpDl = cpu_to_be32(fcpdl); /* * Due to difference in data length between DIF/non-DIF paths, @@ -2819,6 +2621,14 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, */ iocb_cmd->un.fcpi.fcpi_parm = fcpdl; + /* + * For First burst, we may need to adjust the initial transfer + * length for DIF + */ + if (iocb_cmd->un.fcpi.fcpi_XRdy && + (fcpdl < vport->cfg_first_burst_size)) + iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl; + return 0; err: if (lpfc_cmd->seg_cnt) @@ -2828,7 +2638,7 @@ err: scsi_prot_sg_count(scsi_cmnd), scsi_cmnd->sc_data_direction); - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9023 Cannot setup S/G List for HBA" "IO segs %d/%d BPL %d SCSI %d: %d %d\n", lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, @@ -2837,7 +2647,7 @@ err: lpfc_cmd->seg_cnt = 0; lpfc_cmd->prot_seg_cnt = 0; - return 1; + return ret; } /* @@ -2875,7 +2685,7 @@ lpfc_bg_csum(uint8_t *data, int count) * what type of T10-DIF error occurred. */ static void -lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) +lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) { struct scatterlist *sgpe; /* s/g prot entry */ struct scatterlist *sgde; /* s/g data entry */ @@ -2918,16 +2728,16 @@ lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * data length is a multiple of the blksize. */ sgde = scsi_sglist(cmd); - blksize = lpfc_cmd_blksize(cmd); + blksize = scsi_prot_interval(cmd); data_src = (uint8_t *)sg_virt(sgde); - data_len = sgde->length; + data_len = sg_dma_len(sgde); if ((data_len & (blksize - 1)) == 0) chk_guard = 1; src = (struct scsi_dif_tuple *)sg_virt(sgpe); - start_ref_tag = (uint32_t)scsi_get_lba(cmd); /* Truncate LBA */ + start_ref_tag = scsi_prot_ref_tag(cmd); start_app_tag = src->app_tag; - len = sgpe->length; + len = sg_dma_len(sgpe); while (src && protsegcnt) { while (len) { @@ -2944,7 +2754,8 @@ lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) /* First Guard Tag checking */ if (chk_guard) { guard_tag = src->guard_tag; - if (lpfc_cmd_guard_csum(cmd)) + if (cmd->prot_flags + & SCSI_PROT_IP_CHECKSUM) sum = lpfc_bg_csum(data_src, blksize); else @@ -2991,7 +2802,7 @@ skipit: goto out; data_src = (uint8_t *)sg_virt(sgde); - data_len = sgde->length; + data_len = sg_dma_len(sgde); if ((data_len & (blksize - 1)) == 0) chk_guard = 1; } @@ -3001,7 +2812,7 @@ skipit: sgpe = sg_next(sgpe); if (sgpe) { src = (struct scsi_dif_tuple *)sg_virt(sgpe); - len = sgpe->length; + len = sg_dma_len(sgpe); } else { src = NULL; } @@ -3010,43 +2821,36 @@ skipit: } out: if (err_type == BGS_GUARD_ERR_MASK) { - scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, - 0x10, 0x1); - cmd->result = DRIVER_SENSE << 24 - | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1); + set_host_byte(cmd, DID_ABORT); phba->bg_guard_err_cnt++; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9069 BLKGRD: LBA %lx grd_tag error %x != %x\n", - (unsigned long)scsi_get_lba(cmd), + "9069 BLKGRD: reftag %x grd_tag err %x != %x\n", + scsi_prot_ref_tag(cmd), sum, guard_tag); } else if (err_type == BGS_REFTAG_ERR_MASK) { - scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, - 0x10, 0x3); - cmd->result = DRIVER_SENSE << 24 - | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3); + set_host_byte(cmd, DID_ABORT); phba->bg_reftag_err_cnt++; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9066 BLKGRD: LBA %lx ref_tag error %x != %x\n", - (unsigned long)scsi_get_lba(cmd), + "9066 BLKGRD: reftag %x ref_tag err %x != %x\n", + scsi_prot_ref_tag(cmd), ref_tag, start_ref_tag); } else if (err_type == BGS_APPTAG_ERR_MASK) { - scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, - 0x10, 0x2); - cmd->result = DRIVER_SENSE << 24 - | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2); + set_host_byte(cmd, DID_ABORT); phba->bg_apptag_err_cnt++; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9041 BLKGRD: LBA %lx app_tag error %x != %x\n", - (unsigned long)scsi_get_lba(cmd), + "9041 BLKGRD: reftag %x app_tag err %x != %x\n", + scsi_prot_ref_tag(cmd), app_tag, start_app_tag); } } - /* * This function checks for BlockGuard errors detected by * the HBA. In case of errors, the ASC/ASCQ fields in the @@ -3060,108 +2864,120 @@ out: * -1 - Internal error (bad profile, ...etc) */ static int -lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, - struct lpfc_iocbq *pIocbOut) +lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd, + struct lpfc_iocbq *pIocbOut) { struct scsi_cmnd *cmd = lpfc_cmd->pCmd; - struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; + struct sli3_bg_fields *bgf; int ret = 0; - uint32_t bghm = bgf->bghm; - uint32_t bgstat = bgf->bgstat; - uint64_t failing_sector = 0; - - spin_lock(&_dump_buf_lock); - if (!_dump_buf_done) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9070 BLKGRD: Saving" - " Data for %u blocks to debugfs\n", - (cmd->cmnd[7] << 8 | cmd->cmnd[8])); - lpfc_debug_save_data(phba, cmd); - - /* If we have a prot sgl, save the DIF buffer */ - if (lpfc_prot_group_type(phba, cmd) == - LPFC_PG_TYPE_DIF_BUF) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9071 BLKGRD: " - "Saving DIF for %u blocks to debugfs\n", - (cmd->cmnd[7] << 8 | cmd->cmnd[8])); - lpfc_debug_save_dif(phba, cmd); + struct lpfc_wcqe_complete *wcqe; + u32 status; + u32 bghm = 0; + u32 bgstat = 0; + u64 failing_sector = 0; + + if (phba->sli_rev == LPFC_SLI_REV4) { + wcqe = &pIocbOut->wcqe_cmpl; + status = bf_get(lpfc_wcqe_c_status, wcqe); + + if (status == CQE_STATUS_DI_ERROR) { + /* Guard Check failed */ + if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) + bgstat |= BGS_GUARD_ERR_MASK; + + /* AppTag Check failed */ + if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) + bgstat |= BGS_APPTAG_ERR_MASK; + + /* RefTag Check failed */ + if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) + bgstat |= BGS_REFTAG_ERR_MASK; + + /* Check to see if there was any good data before the + * error + */ + if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) { + bgstat |= BGS_HI_WATER_MARK_PRESENT_MASK; + bghm = wcqe->total_data_placed; + } + + /* + * Set ALL the error bits to indicate we don't know what + * type of error it is. + */ + if (!bgstat) + bgstat |= (BGS_REFTAG_ERR_MASK | + BGS_APPTAG_ERR_MASK | + BGS_GUARD_ERR_MASK); } - _dump_buf_done = 1; + } else { + bgf = &pIocbOut->iocb.unsli3.sli3_bg; + bghm = bgf->bghm; + bgstat = bgf->bgstat; } - spin_unlock(&_dump_buf_lock); if (lpfc_bgs_get_invalid_prof(bgstat)) { - cmd->result = ScsiResult(DID_ERROR, 0); + cmd->result = DID_ERROR << 16; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9072 BLKGRD: Invalid BG Profile in cmd" - " 0x%x lba 0x%llx blk cnt 0x%x " + "9072 BLKGRD: Invalid BG Profile in cmd " + "0x%x reftag 0x%x blk cnt 0x%x " "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], - (unsigned long long)scsi_get_lba(cmd), - blk_rq_sectors(cmd->request), bgstat, bghm); + scsi_prot_ref_tag(cmd), + scsi_logical_block_count(cmd), bgstat, bghm); ret = (-1); goto out; } if (lpfc_bgs_get_uninit_dif_block(bgstat)) { - cmd->result = ScsiResult(DID_ERROR, 0); + cmd->result = DID_ERROR << 16; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9073 BLKGRD: Invalid BG PDIF Block in cmd" - " 0x%x lba 0x%llx blk cnt 0x%x " + "9073 BLKGRD: Invalid BG PDIF Block in cmd " + "0x%x reftag 0x%x blk cnt 0x%x " "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], - (unsigned long long)scsi_get_lba(cmd), - blk_rq_sectors(cmd->request), bgstat, bghm); + scsi_prot_ref_tag(cmd), + scsi_logical_block_count(cmd), bgstat, bghm); ret = (-1); goto out; } if (lpfc_bgs_get_guard_err(bgstat)) { ret = 1; - - scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, - 0x10, 0x1); - cmd->result = DRIVER_SENSE << 24 - | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1); + set_host_byte(cmd, DID_ABORT); phba->bg_guard_err_cnt++; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9055 BLKGRD: Guard Tag error in cmd" - " 0x%x lba 0x%llx blk cnt 0x%x " + "9055 BLKGRD: Guard Tag error in cmd " + "0x%x reftag 0x%x blk cnt 0x%x " "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], - (unsigned long long)scsi_get_lba(cmd), - blk_rq_sectors(cmd->request), bgstat, bghm); + scsi_prot_ref_tag(cmd), + scsi_logical_block_count(cmd), bgstat, bghm); } if (lpfc_bgs_get_reftag_err(bgstat)) { ret = 1; - - scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, - 0x10, 0x3); - cmd->result = DRIVER_SENSE << 24 - | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); - + scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3); + set_host_byte(cmd, DID_ABORT); phba->bg_reftag_err_cnt++; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9056 BLKGRD: Ref Tag error in cmd" - " 0x%x lba 0x%llx blk cnt 0x%x " + "9056 BLKGRD: Ref Tag error in cmd " + "0x%x reftag 0x%x blk cnt 0x%x " "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], - (unsigned long long)scsi_get_lba(cmd), - blk_rq_sectors(cmd->request), bgstat, bghm); + scsi_prot_ref_tag(cmd), + scsi_logical_block_count(cmd), bgstat, bghm); } if (lpfc_bgs_get_apptag_err(bgstat)) { ret = 1; - - scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, - 0x10, 0x2); - cmd->result = DRIVER_SENSE << 24 - | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); - + scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2); + set_host_byte(cmd, DID_ABORT); phba->bg_apptag_err_cnt++; lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9061 BLKGRD: App Tag error in cmd" - " 0x%x lba 0x%llx blk cnt 0x%x " + "9061 BLKGRD: App Tag error in cmd " + "0x%x reftag 0x%x blk cnt 0x%x " "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], - (unsigned long long)scsi_get_lba(cmd), - blk_rq_sectors(cmd->request), bgstat, bghm); + scsi_prot_ref_tag(cmd), + scsi_logical_block_count(cmd), bgstat, bghm); } if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { @@ -3201,13 +3017,13 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, if (!ret) { /* No error was reported - problem in FW? */ lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, - "9057 BLKGRD: Unknown error in cmd" - " 0x%x lba 0x%llx blk cnt 0x%x " + "9057 BLKGRD: Unknown error in cmd " + "0x%x reftag 0x%x blk cnt 0x%x " "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], - (unsigned long long)scsi_get_lba(cmd), - blk_rq_sectors(cmd->request), bgstat, bghm); + scsi_prot_ref_tag(cmd), + scsi_logical_block_count(cmd), bgstat, bghm); - /* Calcuate what type of error it was */ + /* Calculate what type of error it was */ lpfc_calc_bg_err(phba, lpfc_cmd); } out: @@ -3223,24 +3039,28 @@ out: * field of @lpfc_cmd for device with SLI-4 interface spec. * * Return codes: - * 1 - Error + * 2 - Error - Do not retry + * 1 - Error - Retry * 0 - Success **/ static int -lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) +lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) { struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; struct scatterlist *sgel = NULL; struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; - struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; + struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; struct sli4_sge *first_data_sgl; - IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; + struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; + struct lpfc_vport *vport = phba->pport; + union lpfc_wqe128 *wqe = &pwqeq->wqe; dma_addr_t physaddr; - uint32_t num_bde = 0; uint32_t dma_len; uint32_t dma_offset = 0; - int nseg; + int nseg, i, j; struct ulp_bde64 *bde; + bool lsp_just_set = false; + struct sli4_hybrid_sgl *sgl_xtra = NULL; /* * There are three possibilities here - use scatter-gather segment, use @@ -3250,7 +3070,7 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) */ if (scsi_sg_count(scsi_cmnd)) { /* - * The driver stores the segment count returned from pci_map_sg + * The driver stores the segment count returned from dma_map_sg * because this a count of dma-mappings used to map the use_sg * pages. They are not guaranteed to be the same for those * architectures that implement an IOMMU. @@ -3267,15 +3087,18 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) sgl += 1; first_data_sgl = sgl; lpfc_cmd->seg_cnt = nseg; - if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:" - " %s: Too many sg segments from " - "dma_map_sg. Config %d, seg_cnt %d\n", - __func__, phba->cfg_sg_seg_cnt, - lpfc_cmd->seg_cnt); + if (!phba->cfg_xpsgl && + lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9074 BLKGRD:" + " %s: Too many sg segments from " + "dma_map_sg. Config %d, seg_cnt %d\n", + __func__, phba->cfg_sg_seg_cnt, + lpfc_cmd->seg_cnt); + WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); lpfc_cmd->seg_cnt = 0; scsi_dma_unmap(scsi_cmnd); - return 1; + return 2; } /* @@ -3287,40 +3110,118 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * the IOCB. If it can't then the BDEs get added to a BPL as it * does for SLI-2 mode. */ - scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { - physaddr = sg_dma_address(sgel); - dma_len = sg_dma_len(sgel); - sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); - sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); - sgl->word2 = le32_to_cpu(sgl->word2); - if ((num_bde + 1) == nseg) + + /* for tracking segment boundaries */ + sgel = scsi_sglist(scsi_cmnd); + j = 2; + for (i = 0; i < nseg; i++) { + sgl->word2 = 0; + if (nseg == 1) { bf_set(lpfc_sli4_sge_last, sgl, 1); - else + bf_set(lpfc_sli4_sge_type, sgl, + LPFC_SGE_TYPE_DATA); + } else { bf_set(lpfc_sli4_sge_last, sgl, 0); - bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); - bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); - sgl->word2 = cpu_to_le32(sgl->word2); - sgl->sge_len = cpu_to_le32(dma_len); - dma_offset += dma_len; - sgl++; + + /* do we need to expand the segment */ + if (!lsp_just_set && + !((j + 1) % phba->border_sge_num) && + ((nseg - 1) != i)) { + /* set LSP type */ + bf_set(lpfc_sli4_sge_type, sgl, + LPFC_SGE_TYPE_LSP); + + sgl_xtra = lpfc_get_sgl_per_hdwq( + phba, lpfc_cmd); + + if (unlikely(!sgl_xtra)) { + lpfc_cmd->seg_cnt = 0; + scsi_dma_unmap(scsi_cmnd); + return 1; + } + sgl->addr_lo = cpu_to_le32(putPaddrLow( + sgl_xtra->dma_phys_sgl)); + sgl->addr_hi = cpu_to_le32(putPaddrHigh( + sgl_xtra->dma_phys_sgl)); + + } else { + bf_set(lpfc_sli4_sge_type, sgl, + LPFC_SGE_TYPE_DATA); + } + } + + if (!(bf_get(lpfc_sli4_sge_type, sgl) & + LPFC_SGE_TYPE_LSP)) { + if ((nseg - 1) == i) + bf_set(lpfc_sli4_sge_last, sgl, 1); + + physaddr = sg_dma_address(sgel); + dma_len = sg_dma_len(sgel); + sgl->addr_lo = cpu_to_le32(putPaddrLow( + physaddr)); + sgl->addr_hi = cpu_to_le32(putPaddrHigh( + physaddr)); + + bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); + sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = cpu_to_le32(dma_len); + + dma_offset += dma_len; + sgel = sg_next(sgel); + + sgl++; + lsp_just_set = false; + + } else { + sgl->word2 = cpu_to_le32(sgl->word2); + sgl->sge_len = cpu_to_le32( + phba->cfg_sg_dma_buf_size); + + sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; + i = i - 1; + + lsp_just_set = true; + } + + j++; } - /* setup the performance hint (first data BDE) if enabled */ - if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) { + + /* PBDE support for first data SGE only. + * For FCoE, we key off Performance Hints. + * For FC, we key off lpfc_enable_pbde. + */ + if (nseg == 1 && + ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || + phba->cfg_enable_pbde)) { + /* Words 13-15 */ bde = (struct ulp_bde64 *) - &(iocb_cmd->unsli3.sli3Words[5]); + &wqe->words[13]; bde->addrLow = first_data_sgl->addr_lo; bde->addrHigh = first_data_sgl->addr_hi; bde->tus.f.bdeSize = le32_to_cpu(first_data_sgl->sge_len); bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; bde->tus.w = cpu_to_le32(bde->tus.w); + + /* Word 11 - set PBDE bit */ + bf_set(wqe_pbde, &wqe->generic.wqe_com, 1); + } else { + memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3)); + /* Word 11 - PBDE bit disabled by default template */ } } else { sgl += 1; - /* clear the last flag in the fcp_rsp map entry */ + /* set the last flag in the fcp_rsp map entry */ sgl->word2 = le32_to_cpu(sgl->word2); bf_set(lpfc_sli4_sge_last, sgl, 1); sgl->word2 = cpu_to_le32(sgl->word2); + + if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || + phba->cfg_enable_pbde) { + bde = (struct ulp_bde64 *) + &wqe->words[13]; + memset(bde, 0, (sizeof(uint32_t) * 3)); + } } /* @@ -3329,13 +3230,28 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * explicitly reinitialized. * all iocb memory resources are reused. */ - fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); - - /* - * Due to difference in data length between DIF/non-DIF paths, - * we need to set word 4 of IOCB here - */ - iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); + if (scsi_cmnd->cmd_len > LPFC_FCP_CDB_LEN) + ((struct fcp_cmnd32 *)fcp_cmnd)->fcpDl = + cpu_to_be32(scsi_bufflen(scsi_cmnd)); + else + fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); + /* Set first-burst provided it was successfully negotiated */ + if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag) && + vport->cfg_first_burst_size && + scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) { + u32 init_len, total_len; + + total_len = scsi_bufflen(scsi_cmnd); + init_len = min(total_len, vport->cfg_first_burst_size); + + /* Word 4 & 5 */ + wqe->fcp_iwrite.initial_xfer_len = init_len; + wqe->fcp_iwrite.total_xfer_len = total_len; + } else { + /* Word 4 */ + wqe->fcp_iwrite.total_xfer_len = + be32_to_cpu(fcp_cmnd->fcpDl); + } /* * If the OAS driver feature is enabled and the lun is enabled for @@ -3343,10 +3259,22 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) */ if ((phba->cfg_fof) && ((struct lpfc_device_data *) scsi_cmnd->device->hostdata)->oas_enabled) { - lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); + lpfc_cmd->cur_iocbq.cmd_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); lpfc_cmd->cur_iocbq.priority = ((struct lpfc_device_data *) scsi_cmnd->device->hostdata)->priority; + + /* Word 10 */ + bf_set(wqe_oas, &wqe->generic.wqe_com, 1); + bf_set(wqe_ccpe, &wqe->generic.wqe_com, 1); + + if (lpfc_cmd->cur_iocbq.priority) + bf_set(wqe_ccp, &wqe->generic.wqe_com, + (lpfc_cmd->cur_iocbq.priority << 1)); + else + bf_set(wqe_ccp, &wqe->generic.wqe_com, + (phba->cfg_XLanePriority << 1)); } + return 0; } @@ -3358,19 +3286,26 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * This is the protection/DIF aware version of * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the * two functions eventually, but for now, it's here + * Return codes: + * 2 - Error - Do not retry + * 1 - Error - Retry + * 0 - Success **/ static int lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, - struct lpfc_scsi_buf *lpfc_cmd) + struct lpfc_io_buf *lpfc_cmd) { struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; - struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->fcp_bpl); - IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; + struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->dma_sgl); + struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; + union lpfc_wqe128 *wqe = &pwqeq->wqe; uint32_t num_sge = 0; int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; int prot_group_type = 0; int fcpdl; + int ret = 1; + struct lpfc_vport *vport = phba->pport; /* * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd @@ -3378,7 +3313,7 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, */ if (scsi_sg_count(scsi_cmnd)) { /* - * The driver stores the segment count returned from pci_map_sg + * The driver stores the segment count returned from dma_map_sg * because this a count of dma-mappings used to map the use_sg * pages. They are not guaranteed to be the same for those * architectures that implement an IOMMU. @@ -3399,23 +3334,33 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, lpfc_cmd->seg_cnt = datasegcnt; /* First check if data segment count from SCSI Layer is good */ - if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) + if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt && + !phba->cfg_xpsgl) { + WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); + ret = 2; goto err; + } prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); switch (prot_group_type) { case LPFC_PG_TYPE_NO_DIF: /* Here we need to add a DISEED to the count */ - if ((lpfc_cmd->seg_cnt + 1) > phba->cfg_total_seg_cnt) + if (((lpfc_cmd->seg_cnt + 1) > + phba->cfg_total_seg_cnt) && + !phba->cfg_xpsgl) { + ret = 2; goto err; + } num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, - datasegcnt); + datasegcnt, lpfc_cmd); /* we should have 2 or more entries in buffer list */ - if (num_sge < 2) + if (num_sge < 2) { + ret = 2; goto err; + } break; case LPFC_PG_TYPE_DIF_BUF: @@ -3437,17 +3382,23 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, * There is a minimun of 3 SGEs used for every * protection data segment. */ - if ((lpfc_cmd->prot_seg_cnt * 3) > - (phba->cfg_total_seg_cnt - 2)) + if (((lpfc_cmd->prot_seg_cnt * 3) > + (phba->cfg_total_seg_cnt - 2)) && + !phba->cfg_xpsgl) { + ret = 2; goto err; + } num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, - datasegcnt, protsegcnt); + datasegcnt, protsegcnt, lpfc_cmd); /* we should have 3 or more entries in buffer list */ - if ((num_sge < 3) || - (num_sge > phba->cfg_total_seg_cnt)) + if (num_sge < 3 || + (num_sge > phba->cfg_total_seg_cnt && + !phba->cfg_xpsgl)) { + ret = 2; goto err; + } break; case LPFC_PG_TYPE_INVALID: @@ -3455,44 +3406,76 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, scsi_dma_unmap(scsi_cmnd); lpfc_cmd->seg_cnt = 0; - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9083 Unexpected protection group %i\n", prot_group_type); - return 1; + return 2; } } switch (scsi_get_prot_op(scsi_cmnd)) { case SCSI_PROT_WRITE_STRIP: case SCSI_PROT_READ_STRIP: - lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP; + lpfc_cmd->cur_iocbq.cmd_flag |= LPFC_IO_DIF_STRIP; break; case SCSI_PROT_WRITE_INSERT: case SCSI_PROT_READ_INSERT: - lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT; + lpfc_cmd->cur_iocbq.cmd_flag |= LPFC_IO_DIF_INSERT; break; case SCSI_PROT_WRITE_PASS: case SCSI_PROT_READ_PASS: - lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS; + lpfc_cmd->cur_iocbq.cmd_flag |= LPFC_IO_DIF_PASS; break; } fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); - fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); + if (lpfc_cmd->pCmd->cmd_len > LPFC_FCP_CDB_LEN) + ((struct fcp_cmnd32 *)fcp_cmnd)->fcpDl = cpu_to_be32(fcpdl); + else + fcp_cmnd->fcpDl = cpu_to_be32(fcpdl); - /* - * Due to difference in data length between DIF/non-DIF paths, - * we need to set word 4 of IOCB here - */ - iocb_cmd->un.fcpi.fcpi_parm = fcpdl; + /* Set first-burst provided it was successfully negotiated */ + if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag) && + vport->cfg_first_burst_size && + scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) { + u32 init_len, total_len; + + total_len = fcpdl; + init_len = min(total_len, vport->cfg_first_burst_size); + + /* Word 4 & 5 */ + wqe->fcp_iwrite.initial_xfer_len = init_len; + wqe->fcp_iwrite.total_xfer_len = total_len; + } else { + /* Word 4 */ + wqe->fcp_iwrite.total_xfer_len = fcpdl; + } /* * If the OAS driver feature is enabled and the lun is enabled for * OAS, set the oas iocb related flags. */ if ((phba->cfg_fof) && ((struct lpfc_device_data *) - scsi_cmnd->device->hostdata)->oas_enabled) - lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); + scsi_cmnd->device->hostdata)->oas_enabled) { + lpfc_cmd->cur_iocbq.cmd_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); + + /* Word 10 */ + bf_set(wqe_oas, &wqe->generic.wqe_com, 1); + bf_set(wqe_ccpe, &wqe->generic.wqe_com, 1); + bf_set(wqe_ccp, &wqe->generic.wqe_com, + (phba->cfg_XLanePriority << 1)); + } + + /* Word 7. DIF Flags */ + if (lpfc_cmd->cur_iocbq.cmd_flag & LPFC_IO_DIF_PASS) + bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU); + else if (lpfc_cmd->cur_iocbq.cmd_flag & LPFC_IO_DIF_STRIP) + bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP); + else if (lpfc_cmd->cur_iocbq.cmd_flag & LPFC_IO_DIF_INSERT) + bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT); + + lpfc_cmd->cur_iocbq.cmd_flag &= ~(LPFC_IO_DIF_PASS | + LPFC_IO_DIF_STRIP | LPFC_IO_DIF_INSERT); return 0; err: @@ -3503,16 +3486,16 @@ err: scsi_prot_sg_count(scsi_cmnd), scsi_cmnd->sc_data_direction); - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "9084 Cannot setup S/G List for HBA" - "IO segs %d/%d SGL %d SCSI %d: %d %d\n", + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, + "9084 Cannot setup S/G List for HBA " + "IO segs %d/%d SGL %d SCSI %d: %d %d %d\n", lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, - prot_group_type, num_sge); + prot_group_type, num_sge, ret); lpfc_cmd->seg_cnt = 0; lpfc_cmd->prot_seg_cnt = 0; - return 1; + return ret; } /** @@ -3528,7 +3511,7 @@ err: * 0 - Success **/ static inline int -lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) +lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) { return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); } @@ -3547,34 +3530,53 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * 0 - Success **/ static inline int -lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) +lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) { return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); } /** + * lpfc_scsi_prep_cmnd_buf - Wrapper function for IOCB/WQE mapping of scsi + * buffer + * @vport: Pointer to vport object. + * @lpfc_cmd: The scsi buffer which is going to be mapped. + * @tmo: Timeout value for IO + * + * This routine initializes IOCB/WQE data structure from scsi command + * + * Return codes: + * 1 - Error + * 0 - Success + **/ +static inline int +lpfc_scsi_prep_cmnd_buf(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, + uint8_t tmo) +{ + return vport->phba->lpfc_scsi_prep_cmnd_buf(vport, lpfc_cmd, tmo); +} + +/** * lpfc_send_scsi_error_event - Posts an event when there is SCSI error * @phba: Pointer to hba context object. * @vport: Pointer to vport object. * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. - * @rsp_iocb: Pointer to response iocb object which reported error. + * @fcpi_parm: FCP Initiator parameter. * * This function posts an event when there is a SCSI command reporting * error from the scsi device. **/ static void lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, - struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) { + struct lpfc_io_buf *lpfc_cmd, uint32_t fcpi_parm) { struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; uint32_t resp_info = fcprsp->rspStatus2; uint32_t scsi_status = fcprsp->rspStatus3; - uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; struct lpfc_fast_path_event *fast_path_evt = NULL; struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; unsigned long flags; - if (!pnode || !NLP_CHK_NODE_ACT(pnode)) + if (!pnode) return; /* If there is queuefull or busy condition send a scsi event */ @@ -3656,7 +3658,7 @@ lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, * field of @lpfc_cmd for device with SLI-3 interface spec. **/ static void -lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) +lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb) { /* * There are only two special cases to consider. (1) the scsi command @@ -3673,24 +3675,160 @@ lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) } /** - * lpfc_handler_fcp_err - FCP response handler + * lpfc_unblock_requests - allow further commands to be queued. + * @phba: pointer to phba object + * + * For single vport, just call scsi_unblock_requests on physical port. + * For multiple vports, send scsi_unblock_requests for all the vports. + */ +void +lpfc_unblock_requests(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + struct Scsi_Host *shost; + int i; + + if (phba->sli_rev == LPFC_SLI_REV4 && + !phba->sli4_hba.max_cfg_param.vpi_used) { + shost = lpfc_shost_from_vport(phba->pport); + scsi_unblock_requests(shost); + return; + } + + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + shost = lpfc_shost_from_vport(vports[i]); + scsi_unblock_requests(shost); + } + lpfc_destroy_vport_work_array(phba, vports); +} + +/** + * lpfc_block_requests - prevent further commands from being queued. + * @phba: pointer to phba object + * + * For single vport, just call scsi_block_requests on physical port. + * For multiple vports, send scsi_block_requests for all the vports. + */ +void +lpfc_block_requests(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + struct Scsi_Host *shost; + int i; + + if (atomic_read(&phba->cmf_stop_io)) + return; + + if (phba->sli_rev == LPFC_SLI_REV4 && + !phba->sli4_hba.max_cfg_param.vpi_used) { + shost = lpfc_shost_from_vport(phba->pport); + scsi_block_requests(shost); + return; + } + + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + shost = lpfc_shost_from_vport(vports[i]); + scsi_block_requests(shost); + } + lpfc_destroy_vport_work_array(phba, vports); +} + +/** + * lpfc_update_cmf_cmpl - Adjust CMF counters for IO completion + * @phba: The HBA for which this call is being executed. + * @time: The latency of the IO that completed (in ns) + * @size: The size of the IO that completed + * @shost: SCSI host the IO completed on (NULL for a NVME IO) + * + * The routine adjusts the various Burst and Bandwidth counters used in + * Congestion management and E2E. If time is set to LPFC_CGN_NOT_SENT, + * that means the IO was never issued to the HBA, so this routine is + * just being called to cleanup the counter from a previous + * lpfc_update_cmf_cmd call. + */ +int +lpfc_update_cmf_cmpl(struct lpfc_hba *phba, + uint64_t time, uint32_t size, struct Scsi_Host *shost) +{ + struct lpfc_cgn_stat *cgs; + + if (time != LPFC_CGN_NOT_SENT) { + /* lat is ns coming in, save latency in us */ + if (time < 1000) + time = 1; + else + time = div_u64(time + 500, 1000); /* round it */ + + cgs = per_cpu_ptr(phba->cmf_stat, raw_smp_processor_id()); + atomic64_add(size, &cgs->rcv_bytes); + atomic64_add(time, &cgs->rx_latency); + atomic_inc(&cgs->rx_io_cnt); + } + return 0; +} + +/** + * lpfc_update_cmf_cmd - Adjust CMF counters for IO submission + * @phba: The HBA for which this call is being executed. + * @size: The size of the IO that will be issued + * + * The routine adjusts the various Burst and Bandwidth counters used in + * Congestion management and E2E. + */ +int +lpfc_update_cmf_cmd(struct lpfc_hba *phba, uint32_t size) +{ + uint64_t total; + struct lpfc_cgn_stat *cgs; + int cpu; + + /* At this point we are either LPFC_CFG_MANAGED or LPFC_CFG_MONITOR */ + if (phba->cmf_active_mode == LPFC_CFG_MANAGED && + phba->cmf_max_bytes_per_interval) { + total = 0; + for_each_present_cpu(cpu) { + cgs = per_cpu_ptr(phba->cmf_stat, cpu); + total += atomic64_read(&cgs->total_bytes); + } + if (total >= phba->cmf_max_bytes_per_interval) { + if (!atomic_xchg(&phba->cmf_bw_wait, 1)) { + lpfc_block_requests(phba); + phba->cmf_last_ts = + lpfc_calc_cmf_latency(phba); + } + atomic_inc(&phba->cmf_busy); + return -EBUSY; + } + if (size > atomic_read(&phba->rx_max_read_cnt)) + atomic_set(&phba->rx_max_read_cnt, size); + } + + cgs = per_cpu_ptr(phba->cmf_stat, raw_smp_processor_id()); + atomic64_add(size, &cgs->total_bytes); + return 0; +} + +/** + * lpfc_handle_fcp_err - FCP response handler * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. - * @rsp_iocb: The response IOCB which contains FCP error. + * @lpfc_cmd: Pointer to lpfc_io_buf data structure. + * @fcpi_parm: FCP Initiator parameter. * * This routine is called to process response IOCB with status field * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command * based upon SCSI and FCP error. **/ static void -lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, - struct lpfc_iocbq *rsp_iocb) +lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, + uint32_t fcpi_parm) { - struct lpfc_hba *phba = vport->phba; struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; - uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; uint32_t resp_info = fcprsp->rspStatus2; uint32_t scsi_status = fcprsp->rspStatus3; uint32_t *lp; @@ -3713,17 +3851,17 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, if (resp_info & RSP_LEN_VALID) { rsplen = be32_to_cpu(fcprsp->rspRspLen); if (rsplen != 0 && rsplen != 4 && rsplen != 8) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "2719 Invalid response length: " - "tgt x%x lun x%llx cmnd x%x rsplen x%x\n", - cmnd->device->id, - cmnd->device->lun, cmnd->cmnd[0], - rsplen); + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "2719 Invalid response length: " + "tgt x%x lun x%llx cmnd x%x rsplen " + "x%x\n", cmnd->device->id, + cmnd->device->lun, cmnd->cmnd[0], + rsplen); host_status = DID_ERROR; goto out; } if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "2757 Protocol failure detected during " "processing of FCP I/O op: " "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n", @@ -3767,25 +3905,26 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, fcprsp->rspInfo3); scsi_set_resid(cmnd, 0); - fcpDl = be32_to_cpu(fcpcmd->fcpDl); + if (cmnd->cmd_len > LPFC_FCP_CDB_LEN) + fcpDl = be32_to_cpu(((struct fcp_cmnd32 *)fcpcmd)->fcpDl); + else + fcpDl = be32_to_cpu(fcpcmd->fcpDl); if (resp_info & RESID_UNDER) { scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, - "9025 FCP Read Underrun, expected %d, " + "9025 FCP Underrun, expected %d, " "residual %d Data: x%x x%x x%x\n", fcpDl, scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], cmnd->underflow); /* - * If there is an under run check if under run reported by + * If there is an under run, check if under run reported by * storage array is same as the under run reported by HBA. * If this is not same, there is a dropped frame. */ - if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && - fcpi_parm && - (scsi_get_resid(cmnd) != fcpi_parm)) { + if (fcpi_parm && (scsi_get_resid(cmnd) != fcpi_parm)) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, "9026 FCP Read Check Error " @@ -3827,13 +3966,10 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, */ } else if (fcpi_parm) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, - "9029 FCP %s Check Error xri x%x Data: " + "9029 FCP %s Check Error Data: " "x%x x%x x%x x%x x%x\n", ((cmnd->sc_data_direction == DMA_FROM_DEVICE) ? "Read" : "Write"), - ((phba->sli_rev == LPFC_SLI_REV4) ? - lpfc_cmd->cur_iocbq.sli4_xritag : - rsp_iocb->iocb.ulpContext), fcpDl, be32_to_cpu(fcprsp->rspResId), fcpi_parm, cmnd->cmnd[0], scsi_status); @@ -3859,52 +3995,339 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, } out: - cmnd->result = ScsiResult(host_status, scsi_status); - lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); + cmnd->result = host_status << 16 | scsi_status; + lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, fcpi_parm); } /** - * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution - * @phba: Pointer to HBA context object. - * - * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index - * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock - * held. - * If scsi-mq is enabled, get the default block layer mapping of software queues - * to hardware queues. This information is saved in request tag. + * lpfc_fcp_io_cmd_wqe_cmpl - Complete a FCP IO + * @phba: The hba for which this call is being executed. + * @pwqeIn: The command WQE for the scsi cmnd. + * @pwqeOut: Pointer to driver response WQE object. * - * Return: index into SLI4 fast-path FCP queue index. + * This routine assigns scsi command result by looking into response WQE + * status field appropriately. This routine handles QUEUE FULL condition as + * well by ramping down device queue depth. **/ -int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, - struct lpfc_scsi_buf *lpfc_cmd) +static void +lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, + struct lpfc_iocbq *pwqeOut) { - struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; - struct lpfc_vector_map_info *cpup; - int chann, cpu; - uint32_t tag; - uint16_t hwq; + struct lpfc_io_buf *lpfc_cmd = pwqeIn->io_buf; + struct lpfc_wcqe_complete *wcqe = &pwqeOut->wcqe_cmpl; + struct lpfc_vport *vport = pwqeIn->vport; + struct lpfc_rport_data *rdata; + struct lpfc_nodelist *ndlp; + struct scsi_cmnd *cmd; + unsigned long flags; + struct lpfc_fast_path_event *fast_path_evt; + struct Scsi_Host *shost; + u32 logit = LOG_FCP; + u32 idx; + u32 lat; + u8 wait_xb_clr = 0; + + /* Sanity check on return of outstanding command */ + if (!lpfc_cmd) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "9032 Null lpfc_cmd pointer. No " + "release, skip completion\n"); + return; + } + + rdata = lpfc_cmd->rdata; + ndlp = rdata->pnode; + + /* Sanity check on return of outstanding command */ + cmd = lpfc_cmd->pCmd; + if (!cmd) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "9042 I/O completion: Not an active IO\n"); + lpfc_release_scsi_buf(phba, lpfc_cmd); + return; + } + /* Guard against abort handler being called at same time */ + spin_lock(&lpfc_cmd->buf_lock); + idx = lpfc_cmd->cur_iocbq.hba_wqidx; + if (phba->sli4_hba.hdwq) + phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++; + +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO)) + this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io); +#endif + shost = cmd->device->host; - if (cmnd && shost_use_blk_mq(cmnd->device->host)) { - tag = blk_mq_unique_tag(cmnd->request); - hwq = blk_mq_unique_tag_to_hwq(tag); + lpfc_cmd->status = bf_get(lpfc_wcqe_c_status, wcqe); + lpfc_cmd->result = (wcqe->parameter & IOERR_PARAM_MASK); - return hwq; + lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY; + if (bf_get(lpfc_wcqe_c_xb, wcqe)) { + lpfc_cmd->flags |= LPFC_SBUF_XBUSY; + if (phba->cfg_fcp_wait_abts_rsp) + wait_xb_clr = 1; } - if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU - && phba->cfg_fcp_io_channel > 1) { - cpu = smp_processor_id(); - if (cpu < phba->sli4_hba.num_present_cpu) { - cpup = phba->sli4_hba.cpu_map; - cpup += cpu; - return cpup->channel_id; +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (lpfc_cmd->prot_data_type) { + struct scsi_dif_tuple *src = NULL; + + src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; + /* + * Used to restore any changes to protection + * data for error injection. + */ + switch (lpfc_cmd->prot_data_type) { + case LPFC_INJERR_REFTAG: + src->ref_tag = + lpfc_cmd->prot_data; + break; + case LPFC_INJERR_APPTAG: + src->app_tag = + (uint16_t)lpfc_cmd->prot_data; + break; + case LPFC_INJERR_GUARD: + src->guard_tag = + (uint16_t)lpfc_cmd->prot_data; + break; + default: + break; } + + lpfc_cmd->prot_data = 0; + lpfc_cmd->prot_data_type = 0; + lpfc_cmd->prot_data_segment = NULL; + } +#endif + if (unlikely(lpfc_cmd->status)) { + if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && + !lpfc_cmd->fcp_rsp->rspStatus3 && + (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && + !(vport->cfg_log_verbose & LOG_FCP_UNDER)) + logit = 0; + else + logit = LOG_FCP | LOG_FCP_UNDER; + lpfc_printf_vlog(vport, KERN_WARNING, logit, + "9034 FCP cmd x%x failed <%d/%lld> " + "status: x%x result: x%x " + "sid: x%x did: x%x oxid: x%x " + "Data: x%x x%x x%x\n", + cmd->cmnd[0], + cmd->device ? cmd->device->id : 0xffff, + cmd->device ? cmd->device->lun : 0xffff, + lpfc_cmd->status, lpfc_cmd->result, + vport->fc_myDID, + (ndlp) ? ndlp->nlp_DID : 0, + lpfc_cmd->cur_iocbq.sli4_xritag, + wcqe->parameter, wcqe->total_data_placed, + lpfc_cmd->cur_iocbq.iotag); + } + + switch (lpfc_cmd->status) { + case CQE_STATUS_SUCCESS: + cmd->result = DID_OK << 16; + break; + case CQE_STATUS_FCP_RSP_FAILURE: + lpfc_handle_fcp_err(vport, lpfc_cmd, + pwqeIn->wqe.fcp_iread.total_xfer_len - + wcqe->total_data_placed); + break; + case CQE_STATUS_NPORT_BSY: + case CQE_STATUS_FABRIC_BSY: + cmd->result = DID_TRANSPORT_DISRUPTED << 16; + fast_path_evt = lpfc_alloc_fast_evt(phba); + if (!fast_path_evt) + break; + fast_path_evt->un.fabric_evt.event_type = + FC_REG_FABRIC_EVENT; + fast_path_evt->un.fabric_evt.subcategory = + (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? + LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; + if (ndlp) { + memcpy(&fast_path_evt->un.fabric_evt.wwpn, + &ndlp->nlp_portname, + sizeof(struct lpfc_name)); + memcpy(&fast_path_evt->un.fabric_evt.wwnn, + &ndlp->nlp_nodename, + sizeof(struct lpfc_name)); + } + fast_path_evt->vport = vport; + fast_path_evt->work_evt.evt = + LPFC_EVT_FASTPATH_MGMT_EVT; + spin_lock_irqsave(&phba->hbalock, flags); + list_add_tail(&fast_path_evt->work_evt.evt_listp, + &phba->work_list); + spin_unlock_irqrestore(&phba->hbalock, flags); + lpfc_worker_wake_up(phba); + lpfc_printf_vlog(vport, KERN_WARNING, logit, + "9035 Fabric/Node busy FCP cmd x%x failed" + " <%d/%lld> " + "status: x%x result: x%x " + "sid: x%x did: x%x oxid: x%x " + "Data: x%x x%x x%x\n", + cmd->cmnd[0], + cmd->device ? cmd->device->id : 0xffff, + cmd->device ? cmd->device->lun : 0xffff, + lpfc_cmd->status, lpfc_cmd->result, + vport->fc_myDID, + (ndlp) ? ndlp->nlp_DID : 0, + lpfc_cmd->cur_iocbq.sli4_xritag, + wcqe->parameter, + wcqe->total_data_placed, + lpfc_cmd->cur_iocbq.iocb.ulpIoTag); + break; + case CQE_STATUS_DI_ERROR: + if (bf_get(lpfc_wcqe_c_bg_edir, wcqe)) + lpfc_cmd->result = IOERR_RX_DMA_FAILED; + else + lpfc_cmd->result = IOERR_TX_DMA_FAILED; + lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_BG, + "9048 DI Error xri x%x status x%x DI ext " + "status x%x data placed x%x\n", + lpfc_cmd->cur_iocbq.sli4_xritag, + lpfc_cmd->status, wcqe->parameter, + wcqe->total_data_placed); + if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { + /* BG enabled cmd. Parse BG error */ + lpfc_parse_bg_err(phba, lpfc_cmd, pwqeOut); + break; + } + cmd->result = DID_ERROR << 16; + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9040 DI Error on unprotected cmd\n"); + break; + case CQE_STATUS_REMOTE_STOP: + if (ndlp) { + /* This I/O was aborted by the target, we don't + * know the rxid and because we did not send the + * ABTS we cannot generate and RRQ. + */ + lpfc_set_rrq_active(phba, ndlp, + lpfc_cmd->cur_iocbq.sli4_lxritag, + 0, 0); + } + fallthrough; + case CQE_STATUS_LOCAL_REJECT: + if (lpfc_cmd->result & IOERR_DRVR_MASK) + lpfc_cmd->status = IOSTAT_DRIVER_REJECT; + if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || + lpfc_cmd->result == + IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || + lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || + lpfc_cmd->result == + IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { + cmd->result = DID_NO_CONNECT << 16; + break; + } + if (lpfc_cmd->result == IOERR_INVALID_RPI || + lpfc_cmd->result == IOERR_LINK_DOWN || + lpfc_cmd->result == IOERR_NO_RESOURCES || + lpfc_cmd->result == IOERR_ABORT_REQUESTED || + lpfc_cmd->result == IOERR_RPI_SUSPENDED || + lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { + cmd->result = DID_TRANSPORT_DISRUPTED << 16; + break; + } + lpfc_printf_vlog(vport, KERN_WARNING, logit, + "9036 Local Reject FCP cmd x%x failed" + " <%d/%lld> " + "status: x%x result: x%x " + "sid: x%x did: x%x oxid: x%x " + "Data: x%x x%x x%x\n", + cmd->cmnd[0], + cmd->device ? cmd->device->id : 0xffff, + cmd->device ? cmd->device->lun : 0xffff, + lpfc_cmd->status, lpfc_cmd->result, + vport->fc_myDID, + (ndlp) ? ndlp->nlp_DID : 0, + lpfc_cmd->cur_iocbq.sli4_xritag, + wcqe->parameter, + wcqe->total_data_placed, + lpfc_cmd->cur_iocbq.iocb.ulpIoTag); + fallthrough; + default: + cmd->result = DID_ERROR << 16; + lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, + "9037 FCP Completion Error: xri %x " + "status x%x result x%x [x%x] " + "placed x%x\n", + lpfc_cmd->cur_iocbq.sli4_xritag, + lpfc_cmd->status, lpfc_cmd->result, + wcqe->parameter, + wcqe->total_data_placed); + } + if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { + u32 *lp = (u32 *)cmd->sense_buffer; + + lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, + "9039 Iodone <%d/%llu> cmd x%px, error " + "x%x SNS x%x x%x LBA x%llx Data: x%x x%x\n", + cmd->device->id, cmd->device->lun, cmd, + cmd->result, *lp, *(lp + 3), + (cmd->device->sector_size) ? + (u64)scsi_get_lba(cmd) : 0, + cmd->retries, scsi_get_resid(cmd)); } - chann = atomic_add_return(1, &phba->fcp_qidx); - chann = chann % phba->cfg_fcp_io_channel; - return chann; -} + if (vport->cfg_max_scsicmpl_time && + time_after(jiffies, lpfc_cmd->start_time + + msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { + spin_lock_irqsave(shost->host_lock, flags); + if (ndlp) { + if (ndlp->cmd_qdepth > + atomic_read(&ndlp->cmd_pending) && + (atomic_read(&ndlp->cmd_pending) > + LPFC_MIN_TGT_QDEPTH) && + (cmd->cmnd[0] == READ_10 || + cmd->cmnd[0] == WRITE_10)) + ndlp->cmd_qdepth = + atomic_read(&ndlp->cmd_pending); + + ndlp->last_change_time = jiffies; + } + spin_unlock_irqrestore(shost->host_lock, flags); + } + lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); + +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (lpfc_cmd->ts_cmd_start) { + lpfc_cmd->ts_isr_cmpl = lpfc_cmd->cur_iocbq.isr_timestamp; + lpfc_cmd->ts_data_io = ktime_get_ns(); + phba->ktime_last_cmd = lpfc_cmd->ts_data_io; + lpfc_io_ktime(phba, lpfc_cmd); + } +#endif + if (likely(!wait_xb_clr)) + lpfc_cmd->pCmd = NULL; + spin_unlock(&lpfc_cmd->buf_lock); + + /* Check if IO qualified for CMF */ + if (phba->cmf_active_mode != LPFC_CFG_OFF && + cmd->sc_data_direction == DMA_FROM_DEVICE && + (scsi_sg_count(cmd))) { + /* Used when calculating average latency */ + lat = ktime_get_ns() - lpfc_cmd->rx_cmd_start; + lpfc_update_cmf_cmpl(phba, lat, scsi_bufflen(cmd), shost); + } + + if (wait_xb_clr) + goto out; + + /* The sdev is not guaranteed to be valid post scsi_done upcall. */ + scsi_done(cmd); + + /* + * If there is an abort thread waiting for command completion + * wake up the thread. + */ + spin_lock(&lpfc_cmd->buf_lock); + lpfc_cmd->cur_iocbq.cmd_flag &= ~LPFC_DRIVER_ABORTED; + if (lpfc_cmd->waitq) + wake_up(lpfc_cmd->waitq); + spin_unlock(&lpfc_cmd->buf_lock); +out: + lpfc_release_scsi_buf(phba, lpfc_cmd); +} /** * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine @@ -3920,30 +4343,46 @@ static void lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, struct lpfc_iocbq *pIocbOut) { - struct lpfc_scsi_buf *lpfc_cmd = - (struct lpfc_scsi_buf *) pIocbIn->context1; + struct lpfc_io_buf *lpfc_cmd = + (struct lpfc_io_buf *) pIocbIn->io_buf; struct lpfc_vport *vport = pIocbIn->vport; struct lpfc_rport_data *rdata = lpfc_cmd->rdata; struct lpfc_nodelist *pnode = rdata->pnode; struct scsi_cmnd *cmd; - int depth; unsigned long flags; struct lpfc_fast_path_event *fast_path_evt; struct Scsi_Host *shost; + int idx; uint32_t logit = LOG_FCP; - atomic_inc(&phba->fc4ScsiIoCmpls); + /* Guard against abort handler being called at same time */ + spin_lock(&lpfc_cmd->buf_lock); /* Sanity check on return of outstanding command */ cmd = lpfc_cmd->pCmd; - if (!cmd) + if (!cmd || !phba) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "2621 IO completion: Not an active IO\n"); + spin_unlock(&lpfc_cmd->buf_lock); return; + } + + idx = lpfc_cmd->cur_iocbq.hba_wqidx; + if (phba->sli4_hba.hdwq) + phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++; + +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO)) + this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io); +#endif shost = cmd->device->host; lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK); lpfc_cmd->status = pIocbOut->iocb.ulpStatus; - /* pick up SLI4 exhange busy status from HBA */ - lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY; + /* pick up SLI4 exchange busy status from HBA */ + lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY; + if (pIocbOut->cmd_flag & LPFC_EXCHANGE_BUSY) + lpfc_cmd->flags |= LPFC_SBUF_XBUSY; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS if (lpfc_cmd->prot_data_type) { @@ -3977,10 +4416,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, } #endif - if (pnode && NLP_CHK_NODE_ACT(pnode)) - atomic_dec(&pnode->cmd_pending); - - if (lpfc_cmd->status) { + if (unlikely(lpfc_cmd->status)) { if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && (lpfc_cmd->result & IOERR_DRVR_MASK)) lpfc_cmd->status = IOSTAT_DRIVER_REJECT; @@ -4012,11 +4448,12 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, switch (lpfc_cmd->status) { case IOSTAT_FCP_RSP_ERROR: /* Call FCP RSP handler to determine result */ - lpfc_handle_fcp_err(vport, lpfc_cmd, pIocbOut); + lpfc_handle_fcp_err(vport, lpfc_cmd, + pIocbOut->iocb.un.fcpi.fcpi_parm); break; case IOSTAT_NPORT_BSY: case IOSTAT_FABRIC_BSY: - cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0); + cmd->result = DID_TRANSPORT_DISRUPTED << 16; fast_path_evt = lpfc_alloc_fast_evt(phba); if (!fast_path_evt) break; @@ -4025,7 +4462,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, fast_path_evt->un.fabric_evt.subcategory = (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; - if (pnode && NLP_CHK_NODE_ACT(pnode)) { + if (pnode) { memcpy(&fast_path_evt->un.fabric_evt.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); @@ -4050,14 +4487,14 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { - cmd->result = ScsiResult(DID_NO_CONNECT, 0); + cmd->result = DID_NO_CONNECT << 16; break; } if (lpfc_cmd->result == IOERR_INVALID_RPI || lpfc_cmd->result == IOERR_NO_RESOURCES || lpfc_cmd->result == IOERR_ABORT_REQUESTED || lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { - cmd->result = ScsiResult(DID_REQUEUE, 0); + cmd->result = DID_TRANSPORT_DISRUPTED << 16; break; } if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || @@ -4080,7 +4517,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, } if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) && (phba->sli_rev == LPFC_SLI_REV4) - && (pnode && NLP_CHK_NODE_ACT(pnode))) { + && pnode) { /* This IO was aborted by the target, we don't * know the rxid and because we did not send the * ABTS we cannot generate and RRQ. @@ -4089,36 +4526,34 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, lpfc_cmd->cur_iocbq.sli4_lxritag, 0, 0); } - /* else: fall through */ + fallthrough; default: - cmd->result = ScsiResult(DID_ERROR, 0); + cmd->result = DID_ERROR << 16; break; } - if (!pnode || !NLP_CHK_NODE_ACT(pnode) - || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) - cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, - SAM_STAT_BUSY); + if (!pnode || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) + cmd->result = DID_TRANSPORT_DISRUPTED << 16 | + SAM_STAT_BUSY; } else - cmd->result = ScsiResult(DID_OK, 0); + cmd->result = DID_OK << 16; if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { uint32_t *lp = (uint32_t *)cmd->sense_buffer; lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, - "0710 Iodone <%d/%llu> cmd %p, error " + "0710 Iodone <%d/%llu> cmd x%px, error " "x%x SNS x%x x%x Data: x%x x%x\n", cmd->device->id, cmd->device->lun, cmd, cmd->result, *lp, *(lp + 3), cmd->retries, scsi_get_resid(cmd)); } - lpfc_update_stats(phba, lpfc_cmd); if (vport->cfg_max_scsicmpl_time && time_after(jiffies, lpfc_cmd->start_time + msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { spin_lock_irqsave(shost->host_lock, flags); - if (pnode && NLP_CHK_NODE_ACT(pnode)) { + if (pnode) { if (pnode->cmd_qdepth > atomic_read(&pnode->cmd_pending) && (atomic_read(&pnode->cmd_pending) > @@ -4131,104 +4566,61 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, pnode->last_change_time = jiffies; } spin_unlock_irqrestore(shost->host_lock, flags); - } else if (pnode && NLP_CHK_NODE_ACT(pnode)) { - if ((pnode->cmd_qdepth < vport->cfg_tgt_queue_depth) && - time_after(jiffies, pnode->last_change_time + - msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { - spin_lock_irqsave(shost->host_lock, flags); - depth = pnode->cmd_qdepth * LPFC_TGTQ_RAMPUP_PCENT - / 100; - depth = depth ? depth : 1; - pnode->cmd_qdepth += depth; - if (pnode->cmd_qdepth > vport->cfg_tgt_queue_depth) - pnode->cmd_qdepth = vport->cfg_tgt_queue_depth; - pnode->last_change_time = jiffies; - spin_unlock_irqrestore(shost->host_lock, flags); - } } - lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); - spin_lock_irqsave(&phba->hbalock, flags); lpfc_cmd->pCmd = NULL; - spin_unlock_irqrestore(&phba->hbalock, flags); + spin_unlock(&lpfc_cmd->buf_lock); + +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (lpfc_cmd->ts_cmd_start) { + lpfc_cmd->ts_isr_cmpl = pIocbIn->isr_timestamp; + lpfc_cmd->ts_data_io = ktime_get_ns(); + phba->ktime_last_cmd = lpfc_cmd->ts_data_io; + lpfc_io_ktime(phba, lpfc_cmd); + } +#endif /* The sdev is not guaranteed to be valid post scsi_done upcall. */ - cmd->scsi_done(cmd); + scsi_done(cmd); /* - * If there is a thread waiting for command completion + * If there is an abort thread waiting for command completion * wake up the thread. */ - spin_lock_irqsave(shost->host_lock, flags); + spin_lock(&lpfc_cmd->buf_lock); + lpfc_cmd->cur_iocbq.cmd_flag &= ~LPFC_DRIVER_ABORTED; if (lpfc_cmd->waitq) wake_up(lpfc_cmd->waitq); - spin_unlock_irqrestore(shost->host_lock, flags); + spin_unlock(&lpfc_cmd->buf_lock); lpfc_release_scsi_buf(phba, lpfc_cmd); } /** - * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB - * @data: A pointer to the immediate command data portion of the IOCB. - * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. + * lpfc_scsi_prep_cmnd_buf_s3 - SLI-3 IOCB init for the IO + * @vport: Pointer to vport object. + * @lpfc_cmd: The scsi buffer which is going to be prep'ed. + * @tmo: timeout value for the IO * - * The routine copies the entire FCP command from @fcp_cmnd to @data while - * byte swapping the data to big endian format for transmission on the wire. - **/ -static void -lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) -{ - int i, j; - for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); - i += sizeof(uint32_t), j++) { - ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); - } -} - -/** - * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit - * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: The scsi command which needs to send. - * @pnode: Pointer to lpfc_nodelist. + * Based on the data-direction of the command, initialize IOCB + * in the I/O buffer. Fill in the IOCB fields which are independent + * of the scsi buffer * - * This routine initializes fcp_cmnd and iocb data structure from scsi command - * to transfer for device with SLI3 interface spec. + * RETURNS 0 - SUCCESS, **/ -static void -lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, - struct lpfc_nodelist *pnode) +static int lpfc_scsi_prep_cmnd_buf_s3(struct lpfc_vport *vport, + struct lpfc_io_buf *lpfc_cmd, + uint8_t tmo) { - struct lpfc_hba *phba = vport->phba; + IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; + struct lpfc_iocbq *piocbq = &lpfc_cmd->cur_iocbq; struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; - IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; - struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); + struct lpfc_nodelist *pnode = lpfc_cmd->ndlp; int datadir = scsi_cmnd->sc_data_direction; - uint8_t *ptr; - bool sli4; - uint32_t fcpdl; - - if (!pnode || !NLP_CHK_NODE_ACT(pnode)) - return; - - lpfc_cmd->fcp_rsp->rspSnsLen = 0; - /* clear task management bits */ - lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; + u32 fcpdl; - int_to_scsilun(lpfc_cmd->pCmd->device->lun, - &lpfc_cmd->fcp_cmnd->fcp_lun); - - ptr = &fcp_cmnd->fcpCdb[0]; - memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); - if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { - ptr += scsi_cmnd->cmd_len; - memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); - } - - fcp_cmnd->fcpCntl1 = SIMPLE_Q; - - sli4 = (phba->sli_rev == LPFC_SLI_REV4); piocbq->iocb.un.fcpi.fcpi_XRdy = 0; /* @@ -4242,56 +4634,210 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; iocb_cmd->ulpPU = PARM_READ_CHECK; if (vport->cfg_first_burst_size && - (pnode->nlp_flag & NLP_FIRSTBURST)) { + test_bit(NLP_FIRSTBURST, &pnode->nlp_flag)) { + u32 xrdy_len; + fcpdl = scsi_bufflen(scsi_cmnd); - if (fcpdl < vport->cfg_first_burst_size) - piocbq->iocb.un.fcpi.fcpi_XRdy = fcpdl; - else - piocbq->iocb.un.fcpi.fcpi_XRdy = - vport->cfg_first_burst_size; + xrdy_len = min(fcpdl, + vport->cfg_first_burst_size); + piocbq->iocb.un.fcpi.fcpi_XRdy = xrdy_len; } fcp_cmnd->fcpCntl3 = WRITE_DATA; - atomic_inc(&phba->fc4ScsiOutputRequests); } else { iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; iocb_cmd->ulpPU = PARM_READ_CHECK; fcp_cmnd->fcpCntl3 = READ_DATA; - atomic_inc(&phba->fc4ScsiInputRequests); } } else { iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; iocb_cmd->un.fcpi.fcpi_parm = 0; iocb_cmd->ulpPU = 0; fcp_cmnd->fcpCntl3 = 0; - atomic_inc(&phba->fc4ScsiControlRequests); } - if (phba->sli_rev == 3 && - !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) - lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); + /* * Finish initializing those IOCB fields that are independent * of the scsi_cmnd request_buffer */ piocbq->iocb.ulpContext = pnode->nlp_rpi; - if (sli4) - piocbq->iocb.ulpContext = - phba->sli4_hba.rpi_ids[pnode->nlp_rpi]; if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) piocbq->iocb.ulpFCP2Rcvy = 1; else piocbq->iocb.ulpFCP2Rcvy = 0; piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); - piocbq->context1 = lpfc_cmd; - piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; - piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; + piocbq->io_buf = lpfc_cmd; + if (!piocbq->cmd_cmpl) + piocbq->cmd_cmpl = lpfc_scsi_cmd_iocb_cmpl; + piocbq->iocb.ulpTimeout = tmo; piocbq->vport = vport; + return 0; +} + +/** + * lpfc_scsi_prep_cmnd_buf_s4 - SLI-4 WQE init for the IO + * @vport: Pointer to vport object. + * @lpfc_cmd: The scsi buffer which is going to be prep'ed. + * @tmo: timeout value for the IO + * + * Based on the data-direction of the command copy WQE template + * to I/O buffer WQE. Fill in the WQE fields which are independent + * of the scsi buffer + * + * RETURNS 0 - SUCCESS, + **/ +static int lpfc_scsi_prep_cmnd_buf_s4(struct lpfc_vport *vport, + struct lpfc_io_buf *lpfc_cmd, + uint8_t tmo) +{ + struct lpfc_hba *phba = vport->phba; + struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; + struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; + struct lpfc_sli4_hdw_queue *hdwq = NULL; + struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; + struct lpfc_nodelist *pnode = lpfc_cmd->ndlp; + union lpfc_wqe128 *wqe = &pwqeq->wqe; + u16 idx = lpfc_cmd->hdwq_no; + int datadir = scsi_cmnd->sc_data_direction; + + hdwq = &phba->sli4_hba.hdwq[idx]; + + /* Initialize 64 bytes only */ + memset(wqe, 0, sizeof(union lpfc_wqe128)); + + /* + * There are three possibilities here - use scatter-gather segment, use + * the single mapping, or neither. + */ + if (scsi_sg_count(scsi_cmnd)) { + if (datadir == DMA_TO_DEVICE) { + /* From the iwrite template, initialize words 7 - 11 */ + memcpy(&wqe->words[7], + &lpfc_iwrite_cmd_template.words[7], + sizeof(uint32_t) * 5); + + fcp_cmnd->fcpCntl3 = WRITE_DATA; + if (hdwq) + hdwq->scsi_cstat.output_requests++; + } else { + /* From the iread template, initialize words 7 - 11 */ + memcpy(&wqe->words[7], + &lpfc_iread_cmd_template.words[7], + sizeof(uint32_t) * 5); + + /* Word 7 */ + bf_set(wqe_tmo, &wqe->fcp_iread.wqe_com, tmo); + + fcp_cmnd->fcpCntl3 = READ_DATA; + if (hdwq) + hdwq->scsi_cstat.input_requests++; + + /* For a CMF Managed port, iod must be zero'ed */ + if (phba->cmf_active_mode == LPFC_CFG_MANAGED) + bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, + LPFC_WQE_IOD_NONE); + } + + /* Additional fcp cdb length field calculation. + * LPFC_FCP_CDB_LEN_32 - normal 16 byte cdb length, + * then divide by 4 for the word count. + * shift 2 because of the RDDATA/WRDATA. + */ + if (scsi_cmnd->cmd_len > LPFC_FCP_CDB_LEN) + fcp_cmnd->fcpCntl3 |= 4 << 2; + } else { + /* From the icmnd template, initialize words 4 - 11 */ + memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4], + sizeof(uint32_t) * 8); + + /* Word 7 */ + bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, tmo); + + fcp_cmnd->fcpCntl3 = 0; + if (hdwq) + hdwq->scsi_cstat.control_requests++; + } + + /* + * Finish initializing those WQE fields that are independent + * of the request_buffer + */ + + /* Word 3 */ + bf_set(payload_offset_len, &wqe->fcp_icmd, + sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); + + /* Word 6 */ + bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, + phba->sli4_hba.rpi_ids[pnode->nlp_rpi]); + bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag); + + /* Word 7*/ + if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) + bf_set(wqe_erp, &wqe->generic.wqe_com, 1); + + bf_set(wqe_class, &wqe->generic.wqe_com, + (pnode->nlp_fcp_info & 0x0f)); + + /* Word 8 */ + wqe->generic.wqe_com.abort_tag = pwqeq->iotag; + + /* Word 9 */ + bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag); + + pwqeq->vport = vport; + pwqeq->io_buf = lpfc_cmd; + pwqeq->hba_wqidx = lpfc_cmd->hdwq_no; + pwqeq->cmd_cmpl = lpfc_fcp_io_cmd_wqe_cmpl; + + return 0; } /** - * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit + * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. + * @lpfc_cmd: The scsi command which needs to send. + * @pnode: Pointer to lpfc_nodelist. + * + * This routine initializes fcp_cmnd and iocb data structure from scsi command + * to transfer for device with SLI3 interface spec. + **/ +static int +lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, + struct lpfc_nodelist *pnode) +{ + struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; + struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; + u8 *ptr; + + if (!pnode) + return 0; + + lpfc_cmd->fcp_rsp->rspSnsLen = 0; + /* clear task management bits */ + lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; + + int_to_scsilun(lpfc_cmd->pCmd->device->lun, + &lpfc_cmd->fcp_cmnd->fcp_lun); + + ptr = &((struct fcp_cmnd32 *)fcp_cmnd)->fcpCdb[0]; + memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); + if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { + ptr += scsi_cmnd->cmd_len; + memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); + } + + fcp_cmnd->fcpCntl1 = SIMPLE_Q; + + lpfc_scsi_prep_cmnd_buf(vport, lpfc_cmd, lpfc_cmd->timeout); + + return 0; +} + +/** + * lpfc_scsi_prep_task_mgmt_cmd_s3 - Convert SLI3 scsi TM cmd to FCP info unit + * @vport: The virtual port for which this call is being executed. + * @lpfc_cmd: Pointer to lpfc_io_buf data structure. * @lun: Logical unit number. * @task_mgmt_cmd: SCSI task management command. * @@ -4303,10 +4849,9 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, * 1 - Success **/ static int -lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, - struct lpfc_scsi_buf *lpfc_cmd, - uint64_t lun, - uint8_t task_mgmt_cmd) +lpfc_scsi_prep_task_mgmt_cmd_s3(struct lpfc_vport *vport, + struct lpfc_io_buf *lpfc_cmd, + u64 lun, u8 task_mgmt_cmd) { struct lpfc_iocbq *piocbq; IOCB_t *piocb; @@ -4314,8 +4859,7 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, struct lpfc_rport_data *rdata = lpfc_cmd->rdata; struct lpfc_nodelist *ndlp = rdata->pnode; - if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || - ndlp->nlp_state != NLP_STE_MAPPED_NODE) + if (!ndlp || ndlp->nlp_state != NLP_STE_MAPPED_NODE) return 0; piocbq = &(lpfc_cmd->cur_iocbq); @@ -4328,15 +4872,10 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); int_to_scsilun(lun, &fcp_cmnd->fcp_lun); fcp_cmnd->fcpCntl2 = task_mgmt_cmd; - if (vport->phba->sli_rev == 3 && - !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) + if (!(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); piocb->ulpCommand = CMD_FCP_ICMND64_CR; piocb->ulpContext = ndlp->nlp_rpi; - if (vport->phba->sli_rev == LPFC_SLI_REV4) { - piocb->ulpContext = - vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; - } piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0; piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); piocb->ulpPU = 0; @@ -4352,8 +4891,79 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, } else piocb->ulpTimeout = lpfc_cmd->timeout; - if (vport->phba->sli_rev == LPFC_SLI_REV4) - lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); + return 1; +} + +/** + * lpfc_scsi_prep_task_mgmt_cmd_s4 - Convert SLI4 scsi TM cmd to FCP info unit + * @vport: The virtual port for which this call is being executed. + * @lpfc_cmd: Pointer to lpfc_io_buf data structure. + * @lun: Logical unit number. + * @task_mgmt_cmd: SCSI task management command. + * + * This routine creates FCP information unit corresponding to @task_mgmt_cmd + * for device with SLI-4 interface spec. + * + * Return codes: + * 0 - Error + * 1 - Success + **/ +static int +lpfc_scsi_prep_task_mgmt_cmd_s4(struct lpfc_vport *vport, + struct lpfc_io_buf *lpfc_cmd, + u64 lun, u8 task_mgmt_cmd) +{ + struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; + union lpfc_wqe128 *wqe = &pwqeq->wqe; + struct fcp_cmnd *fcp_cmnd; + struct lpfc_rport_data *rdata = lpfc_cmd->rdata; + struct lpfc_nodelist *ndlp = rdata->pnode; + + if (!ndlp || ndlp->nlp_state != NLP_STE_MAPPED_NODE) + return 0; + + pwqeq->vport = vport; + /* Initialize 64 bytes only */ + memset(wqe, 0, sizeof(union lpfc_wqe128)); + + /* From the icmnd template, initialize words 4 - 11 */ + memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4], + sizeof(uint32_t) * 8); + + fcp_cmnd = lpfc_cmd->fcp_cmnd; + /* Clear out any old data in the FCP command area */ + memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); + int_to_scsilun(lun, &fcp_cmnd->fcp_lun); + fcp_cmnd->fcpCntl3 = 0; + fcp_cmnd->fcpCntl2 = task_mgmt_cmd; + + bf_set(payload_offset_len, &wqe->fcp_icmd, + sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); + bf_set(cmd_buff_len, &wqe->fcp_icmd, 0); + bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, /* ulpContext */ + vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); + bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com, + ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0)); + bf_set(wqe_class, &wqe->fcp_icmd.wqe_com, + (ndlp->nlp_fcp_info & 0x0f)); + + /* ulpTimeout is only one byte */ + if (lpfc_cmd->timeout > 0xff) { + /* + * Do not timeout the command at the firmware level. + * The driver will provide the timeout mechanism. + */ + bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, 0); + } else { + bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, lpfc_cmd->timeout); + } + + lpfc_prep_embed_io(vport->phba, lpfc_cmd); + bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag); + wqe->generic.wqe_com.abort_tag = pwqeq->iotag; + bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag); + + lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); return 1; } @@ -4372,37 +4982,38 @@ lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) { phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; - phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; switch (dev_grp) { case LPFC_PCI_DEV_LP: - phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s3; phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; + phba->lpfc_scsi_prep_cmnd_buf = lpfc_scsi_prep_cmnd_buf_s3; + phba->lpfc_scsi_prep_task_mgmt_cmd = + lpfc_scsi_prep_task_mgmt_cmd_s3; break; case LPFC_PCI_DEV_OC: - phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4; phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; + phba->lpfc_scsi_prep_cmnd_buf = lpfc_scsi_prep_cmnd_buf_s4; + phba->lpfc_scsi_prep_task_mgmt_cmd = + lpfc_scsi_prep_task_mgmt_cmd_s4; break; default: lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "1418 Invalid HBA PCI-device group: 0x%x\n", dev_grp); return -ENODEV; - break; } phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; - phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; return 0; } /** - * lpfc_taskmgmt_def_cmpl - IOCB completion routine for task management command + * lpfc_tskmgmt_def_cmpl - IOCB completion routine for task management command * @phba: The Hba for which this call is being executed. * @cmdiocbq: Pointer to lpfc_iocbq data structure. * @rspiocbq: Pointer to lpfc_iocbq data structure. @@ -4415,14 +5026,69 @@ lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq, struct lpfc_iocbq *rspiocbq) { - struct lpfc_scsi_buf *lpfc_cmd = - (struct lpfc_scsi_buf *) cmdiocbq->context1; + struct lpfc_io_buf *lpfc_cmd = cmdiocbq->io_buf; if (lpfc_cmd) lpfc_release_scsi_buf(phba, lpfc_cmd); return; } /** + * lpfc_check_pci_resettable - Walks list of devices on pci_dev's bus to check + * if issuing a pci_bus_reset is possibly unsafe + * @phba: lpfc_hba pointer. + * + * Description: + * Walks the bus_list to ensure only PCI devices with Emulex + * vendor id, device ids that support hot reset, and only one occurrence + * of function 0. + * + * Returns: + * -EBADSLT, detected invalid device + * 0, successful + */ +int +lpfc_check_pci_resettable(struct lpfc_hba *phba) +{ + const struct pci_dev *pdev = phba->pcidev; + struct pci_dev *ptr = NULL; + u8 counter = 0; + + /* Walk the list of devices on the pci_dev's bus */ + list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { + /* Check for Emulex Vendor ID */ + if (ptr->vendor != PCI_VENDOR_ID_EMULEX) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8346 Non-Emulex vendor found: " + "0x%04x\n", ptr->vendor); + return -EBADSLT; + } + + /* Check for valid Emulex Device ID */ + if (phba->sli_rev != LPFC_SLI_REV4 || + test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8347 Incapable PCI reset device: " + "0x%04x\n", ptr->device); + return -EBADSLT; + } + + /* Check for only one function 0 ID to ensure only one HBA on + * secondary bus + */ + if (ptr->devfn == 0) { + if (++counter > 1) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8348 More than one device on " + "secondary bus found\n"); + return -EBADSLT; + } + } + } + + return 0; +} + +/** * lpfc_info - Info entry point of scsi_host_template data structure * @host: The scsi host for which this call is being executed. * @@ -4436,37 +5102,64 @@ lpfc_info(struct Scsi_Host *host) { struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; struct lpfc_hba *phba = vport->phba; - int len, link_speed = 0; - static char lpfcinfobuf[384]; + int link_speed = 0; + static char lpfcinfobuf[384]; + char tmp[384] = {0}; - memset(lpfcinfobuf,0,384); + memset(lpfcinfobuf, 0, sizeof(lpfcinfobuf)); if (phba && phba->pcidev){ - strncpy(lpfcinfobuf, phba->ModelDesc, 256); - len = strlen(lpfcinfobuf); - snprintf(lpfcinfobuf + len, - 384-len, - " on PCI bus %02x device %02x irq %d", - phba->pcidev->bus->number, - phba->pcidev->devfn, - phba->pcidev->irq); - len = strlen(lpfcinfobuf); + /* Model Description */ + scnprintf(tmp, sizeof(tmp), phba->ModelDesc); + if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= + sizeof(lpfcinfobuf)) + goto buffer_done; + + /* PCI Info */ + scnprintf(tmp, sizeof(tmp), + " on PCI bus %02x device %02x irq %d", + phba->pcidev->bus->number, phba->pcidev->devfn, + phba->pcidev->irq); + if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= + sizeof(lpfcinfobuf)) + goto buffer_done; + + /* Port Number */ if (phba->Port[0]) { - snprintf(lpfcinfobuf + len, - 384-len, - " port %s", - phba->Port); + scnprintf(tmp, sizeof(tmp), " port %s", phba->Port); + if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= + sizeof(lpfcinfobuf)) + goto buffer_done; } - len = strlen(lpfcinfobuf); + + /* Link Speed */ link_speed = lpfc_sli_port_speed_get(phba); - if (link_speed != 0) - snprintf(lpfcinfobuf + len, 384-len, - " Logical Link Speed: %d Mbps", link_speed); + if (link_speed != 0) { + scnprintf(tmp, sizeof(tmp), + " Logical Link Speed: %d Mbps", link_speed); + if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= + sizeof(lpfcinfobuf)) + goto buffer_done; + } + + /* Support for BSG ioctls */ + scnprintf(tmp, sizeof(tmp), " BSG"); + if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= + sizeof(lpfcinfobuf)) + goto buffer_done; + + /* PCI resettable */ + if (!lpfc_check_pci_resettable(phba)) { + scnprintf(tmp, sizeof(tmp), " PCI resettable"); + strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)); + } } + +buffer_done: return lpfcinfobuf; } /** - * lpfc_poll_rearm_time - Routine to modify fcp_poll timer of hba + * lpfc_poll_rearm_timer - Routine to modify fcp_poll timer of hba * @phba: The Hba for which this call is being executed. * * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. @@ -4495,15 +5188,14 @@ void lpfc_poll_start_timer(struct lpfc_hba * phba) /** * lpfc_poll_timeout - Restart polling timer - * @ptr: Map to lpfc_hba data structure pointer. + * @t: Timer construct where lpfc_hba data structure pointer is obtained. * * This routine restarts fcp_poll timer, when FCP ring polling is enable * and FCP Ring interrupt is disable. **/ - -void lpfc_poll_timeout(unsigned long ptr) +void lpfc_poll_timeout(struct timer_list *t) { - struct lpfc_hba *phba = (struct lpfc_hba *) ptr; + struct lpfc_hba *phba = timer_container_of(phba, t, fcp_poll_timer); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, @@ -4514,10 +5206,24 @@ void lpfc_poll_timeout(unsigned long ptr) } } +/* + * lpfc_is_command_vm_io - get the UUID from blk cgroup + * @cmd: Pointer to scsi_cmnd data structure + * Returns UUID if present, otherwise NULL + */ +static char *lpfc_is_command_vm_io(struct scsi_cmnd *cmd) +{ + struct bio *bio = scsi_cmd_to_rq(cmd)->bio; + + if (!IS_ENABLED(CONFIG_BLK_CGROUP_FC_APPID) || !bio) + return NULL; + return blkcg_get_fc_appid(bio); +} + /** * lpfc_queuecommand - scsi_host_template queuecommand entry point + * @shost: kernel scsi host pointer. * @cmnd: Pointer to scsi_cmnd data structure. - * @done: Pointer to done routine. * * Driver registers this routine to scsi midlayer to submit a @cmd to process. * This routine prepares an IOCB from scsi command and provides to firmware. @@ -4532,13 +5238,22 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) { struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; + struct lpfc_iocbq *cur_iocbq = NULL; struct lpfc_rport_data *rdata; struct lpfc_nodelist *ndlp; - struct lpfc_scsi_buf *lpfc_cmd; + struct lpfc_io_buf *lpfc_cmd; struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); - int err; + int err, idx; + u8 *uuid = NULL; + uint64_t start; + start = ktime_get_ns(); rdata = lpfc_rport_data_from_scsi_device(cmnd->device); + + /* sanity check on references */ + if (unlikely(!rdata) || unlikely(!rport)) + goto out_fail_command; + err = fc_remote_port_chkready(rport); if (err) { cmnd->result = err; @@ -4549,7 +5264,7 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { - lpfc_printf_log(phba, KERN_ERR, LOG_BG, + lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" " op:%02x str=%s without registering for" " BlockGuard - Rejecting command\n", @@ -4562,12 +5277,51 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) * Catch race where our node has transitioned, but the * transport is still transitioning. */ - if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) - goto out_tgt_busy; - if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) - goto out_tgt_busy; + if (!ndlp) + goto out_tgt_busy1; + + /* Check if IO qualifies for CMF */ + if (phba->cmf_active_mode != LPFC_CFG_OFF && + cmnd->sc_data_direction == DMA_FROM_DEVICE && + (scsi_sg_count(cmnd))) { + /* Latency start time saved in rx_cmd_start later in routine */ + err = lpfc_update_cmf_cmd(phba, scsi_bufflen(cmnd)); + if (err) + goto out_tgt_busy1; + } + + if (lpfc_ndlp_check_qdepth(phba, ndlp)) { + if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) { + lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, + "3377 Target Queue Full, scsi Id:%d " + "Qdepth:%d Pending command:%d" + " WWNN:%02x:%02x:%02x:%02x:" + "%02x:%02x:%02x:%02x, " + " WWPN:%02x:%02x:%02x:%02x:" + "%02x:%02x:%02x:%02x", + ndlp->nlp_sid, ndlp->cmd_qdepth, + atomic_read(&ndlp->cmd_pending), + ndlp->nlp_nodename.u.wwn[0], + ndlp->nlp_nodename.u.wwn[1], + ndlp->nlp_nodename.u.wwn[2], + ndlp->nlp_nodename.u.wwn[3], + ndlp->nlp_nodename.u.wwn[4], + ndlp->nlp_nodename.u.wwn[5], + ndlp->nlp_nodename.u.wwn[6], + ndlp->nlp_nodename.u.wwn[7], + ndlp->nlp_portname.u.wwn[0], + ndlp->nlp_portname.u.wwn[1], + ndlp->nlp_portname.u.wwn[2], + ndlp->nlp_portname.u.wwn[3], + ndlp->nlp_portname.u.wwn[4], + ndlp->nlp_portname.u.wwn[5], + ndlp->nlp_portname.u.wwn[6], + ndlp->nlp_portname.u.wwn[7]); + goto out_tgt_busy2; + } + } - lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp); + lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp, cmnd); if (lpfc_cmd == NULL) { lpfc_rampdown_queue_depth(phba); @@ -4576,83 +5330,108 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) "IO busied\n"); goto out_host_busy; } + lpfc_cmd->rx_cmd_start = start; + cur_iocbq = &lpfc_cmd->cur_iocbq; /* * Store the midlayer's command structure for the completion phase * and complete the command initialization. */ lpfc_cmd->pCmd = cmnd; lpfc_cmd->rdata = rdata; - lpfc_cmd->timeout = 0; - lpfc_cmd->start_time = jiffies; + lpfc_cmd->ndlp = ndlp; + cur_iocbq->cmd_cmpl = NULL; cmnd->host_scribble = (unsigned char *)lpfc_cmd; + err = lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); + if (err) + goto out_host_busy_release_buf; + if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { if (vport->phba->cfg_enable_bg) { lpfc_printf_vlog(vport, KERN_INFO, LOG_SCSI_CMD, "9033 BLKGRD: rcvd %s cmd:x%x " - "sector x%llx cnt %u pt %x\n", + "reftag x%x cnt %u pt %x\n", dif_op_str[scsi_get_prot_op(cmnd)], cmnd->cmnd[0], - (unsigned long long)scsi_get_lba(cmnd), - blk_rq_sectors(cmnd->request), - (cmnd->cmnd[1]>>5)); + scsi_prot_ref_tag(cmnd), + scsi_logical_block_count(cmnd), + scsi_get_prot_type(cmnd)); } err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); } else { - if (vport->phba->cfg_enable_bg) { - lpfc_printf_vlog(vport, - KERN_INFO, LOG_SCSI_CMD, - "9038 BLKGRD: rcvd PROT_NORMAL cmd: " - "x%x sector x%llx cnt %u pt %x\n", - cmnd->cmnd[0], - (unsigned long long)scsi_get_lba(cmnd), - blk_rq_sectors(cmnd->request), - (cmnd->cmnd[1]>>5)); - } err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); } - if (err) + if (unlikely(err)) { + if (err == 2) { + cmnd->result = DID_ERROR << 16; + goto out_fail_command_release_buf; + } goto out_host_busy_free_buf; + } - lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); + /* check the necessary and sufficient condition to support VMID */ + if (lpfc_is_vmid_enabled(phba) && + (ndlp->vmid_support || + phba->pport->vmid_priority_tagging == + LPFC_VMID_PRIO_TAG_ALL_TARGETS)) { + /* is the I/O generated by a VM, get the associated virtual */ + /* entity id */ + uuid = lpfc_is_command_vm_io(cmnd); + + if (uuid) { + err = lpfc_vmid_get_appid(vport, uuid, + cmnd->sc_data_direction, + (union lpfc_vmid_io_tag *) + &cur_iocbq->vmid_tag); + if (!err) + cur_iocbq->cmd_flag |= LPFC_IO_VMID; + } + } - atomic_inc(&ndlp->cmd_pending); - err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, - &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO)) + this_cpu_inc(phba->sli4_hba.c_stat->xmt_io); +#endif + /* Issue I/O to adapter */ + err = lpfc_sli_issue_fcp_io(phba, LPFC_FCP_RING, cur_iocbq, + SLI_IOCB_RET_IOCB); +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (start) { + lpfc_cmd->ts_cmd_start = start; + lpfc_cmd->ts_last_cmd = phba->ktime_last_cmd; + lpfc_cmd->ts_cmd_wqput = ktime_get_ns(); + } else { + lpfc_cmd->ts_cmd_start = 0; + } +#endif if (err) { - atomic_dec(&ndlp->cmd_pending); lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, - "3376 FCP could not issue IOCB err %x" + "3376 FCP could not issue iocb err %x " "FCP cmd x%x <%d/%llu> " "sid: x%x did: x%x oxid: x%x " "Data: x%x x%x x%x x%x\n", err, cmnd->cmnd[0], cmnd->device ? cmnd->device->id : 0xffff, - cmnd->device ? cmnd->device->lun : (u64) -1, + cmnd->device ? cmnd->device->lun : (u64)-1, vport->fc_myDID, ndlp->nlp_DID, phba->sli_rev == LPFC_SLI_REV4 ? - lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, - lpfc_cmd->cur_iocbq.iocb.ulpContext, - lpfc_cmd->cur_iocbq.iocb.ulpIoTag, - lpfc_cmd->cur_iocbq.iocb.ulpTimeout, - (uint32_t) - (cmnd->request->timeout / 1000)); + cur_iocbq->sli4_xritag : 0xffff, + phba->sli_rev == LPFC_SLI_REV4 ? + phba->sli4_hba.rpi_ids[ndlp->nlp_rpi] : + cur_iocbq->iocb.ulpContext, + cur_iocbq->iotag, + phba->sli_rev == LPFC_SLI_REV4 ? + bf_get(wqe_tmo, + &cur_iocbq->wqe.generic.wqe_com) : + cur_iocbq->iocb.ulpTimeout, + (uint32_t)(scsi_cmd_to_rq(cmnd)->timeout / 1000)); - switch (lpfc_cmd->fcp_cmnd->fcpCntl3) { - case WRITE_DATA: - atomic_dec(&phba->fc4ScsiOutputRequests); - break; - case READ_DATA: - atomic_dec(&phba->fc4ScsiInputRequests); - break; - default: - atomic_dec(&phba->fc4ScsiControlRequests); - } goto out_host_busy_free_buf; } + if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); @@ -4661,22 +5440,74 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) lpfc_poll_rearm_timer(phba); } + if (phba->cfg_xri_rebalancing) + lpfc_keep_pvt_pool_above_lowwm(phba, lpfc_cmd->hdwq_no); + return 0; out_host_busy_free_buf: + idx = lpfc_cmd->hdwq_no; lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); + if (phba->sli4_hba.hdwq) { + switch (lpfc_cmd->fcp_cmnd->fcpCntl3) { + case WRITE_DATA: + phba->sli4_hba.hdwq[idx].scsi_cstat.output_requests--; + break; + case READ_DATA: + phba->sli4_hba.hdwq[idx].scsi_cstat.input_requests--; + break; + default: + phba->sli4_hba.hdwq[idx].scsi_cstat.control_requests--; + } + } + out_host_busy_release_buf: lpfc_release_scsi_buf(phba, lpfc_cmd); out_host_busy: + lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd), + shost); return SCSI_MLQUEUE_HOST_BUSY; - out_tgt_busy: + out_tgt_busy2: + lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd), + shost); + out_tgt_busy1: return SCSI_MLQUEUE_TARGET_BUSY; + out_fail_command_release_buf: + lpfc_release_scsi_buf(phba, lpfc_cmd); + lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd), + shost); + out_fail_command: - cmnd->scsi_done(cmnd); + scsi_done(cmnd); return 0; } +/* + * lpfc_vmid_vport_cleanup - cleans up the resources associated with a vport + * @vport: The virtual port for which this call is being executed. + */ +void lpfc_vmid_vport_cleanup(struct lpfc_vport *vport) +{ + u32 bucket; + struct lpfc_vmid *cur; + + if (vport->port_type == LPFC_PHYSICAL_PORT) + timer_delete_sync(&vport->phba->inactive_vmid_poll); + + kfree(vport->qfpa_res); + kfree(vport->vmid_priority.vmid_range); + kfree(vport->vmid); + + if (!hash_empty(vport->hash_table)) + hash_for_each(vport->hash_table, bucket, cur, hnode) + hash_del(&cur->hnode); + + vport->qfpa_res = NULL; + vport->vmid_priority.vmid_range = NULL; + vport->vmid = NULL; + vport->cur_vmid_cnt = 0; +} /** * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point @@ -4692,53 +5523,75 @@ static int lpfc_abort_handler(struct scsi_cmnd *cmnd) { struct Scsi_Host *shost = cmnd->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *iocb; - struct lpfc_iocbq *abtsiocb; - struct lpfc_scsi_buf *lpfc_cmd; - IOCB_t *cmd, *icmd; + struct lpfc_io_buf *lpfc_cmd; int ret = SUCCESS, status = 0; - struct lpfc_sli_ring *pring_s4; + struct lpfc_sli_ring *pring_s4 = NULL; + struct lpfc_sli_ring *pring = NULL; int ret_val; - unsigned long flags, iflags; + unsigned long flags; DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); - status = fc_block_scsi_eh(cmnd); + status = fc_block_rport(rport); if (status != 0 && status != SUCCESS) return status; - spin_lock_irqsave(&phba->hbalock, flags); + lpfc_cmd = (struct lpfc_io_buf *)cmnd->host_scribble; + if (!lpfc_cmd) + return ret; + + /* Guard against IO completion being called at same time */ + spin_lock_irqsave(&lpfc_cmd->buf_lock, flags); + + spin_lock(&phba->hbalock); /* driver queued commands are in process of being flushed */ - if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) { - spin_unlock_irqrestore(&phba->hbalock, flags); + if (test_bit(HBA_IOQ_FLUSH, &phba->hba_flag)) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "3168 SCSI Layer abort requested I/O has been " "flushed by LLD.\n"); - return FAILED; + ret = FAILED; + goto out_unlock_hba; } - lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; - if (!lpfc_cmd || !lpfc_cmd->pCmd) { - spin_unlock_irqrestore(&phba->hbalock, flags); + if (!lpfc_cmd->pCmd) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "2873 SCSI Layer I/O Abort Request IO CMPL Status " "x%x ID %d LUN %llu\n", SUCCESS, cmnd->device->id, cmnd->device->lun); - return SUCCESS; + goto out_unlock_hba; } iocb = &lpfc_cmd->cur_iocbq; + if (phba->sli_rev == LPFC_SLI_REV4) { + /* if the io_wq & pring are gone, the port was reset. */ + if (!phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq || + !phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring) { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, + "2877 SCSI Layer I/O Abort Request " + "IO CMPL Status x%x ID %d LUN %llu " + "HBA_SETUP %d\n", FAILED, + cmnd->device->id, + (u64)cmnd->device->lun, + test_bit(HBA_SETUP, &phba->hba_flag)); + ret = FAILED; + goto out_unlock_hba; + } + pring_s4 = phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring; + spin_lock(&pring_s4->ring_lock); + } /* the command is in process of being cancelled */ - if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { - spin_unlock_irqrestore(&phba->hbalock, flags); + if (!(iocb->cmd_flag & LPFC_IO_ON_TXCMPLQ)) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "3169 SCSI Layer abort requested I/O has been " "cancelled by LLD.\n"); - return FAILED; + ret = FAILED; + goto out_unlock_ring; } /* - * If pCmd field of the corresponding lpfc_scsi_buf structure + * If pCmd field of the corresponding lpfc_io_buf structure * points to a different SCSI command, then the driver has * already completed this command, but the midlayer did not * see the completion before the eh fired. Just return SUCCESS. @@ -4747,112 +5600,82 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd) lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "3170 SCSI Layer abort requested I/O has been " "completed by LLD.\n"); - goto out_unlock; + goto out_unlock_ring; } - BUG_ON(iocb->context1 != lpfc_cmd); + WARN_ON(iocb->io_buf != lpfc_cmd); /* abort issued in recovery is still in progress */ - if (iocb->iocb_flag & LPFC_DRIVER_ABORTED) { + if (iocb->cmd_flag & LPFC_DRIVER_ABORTED) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "3389 SCSI Layer I/O Abort Request is pending\n"); - spin_unlock_irqrestore(&phba->hbalock, flags); + if (phba->sli_rev == LPFC_SLI_REV4) + spin_unlock(&pring_s4->ring_lock); + spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&lpfc_cmd->buf_lock, flags); goto wait_for_cmpl; } - abtsiocb = __lpfc_sli_get_iocbq(phba); - if (abtsiocb == NULL) { - ret = FAILED; - goto out_unlock; - } - - /* Indicate the IO is being aborted by the driver. */ - iocb->iocb_flag |= LPFC_DRIVER_ABORTED; - - /* - * The scsi command can not be in txq and it is in flight because the - * pCmd is still pointig at the SCSI command we have to abort. There - * is no need to search the txcmplq. Just send an abort to the FW. - */ - - cmd = &iocb->iocb; - icmd = &abtsiocb->iocb; - icmd->un.acxri.abortType = ABORT_TYPE_ABTS; - icmd->un.acxri.abortContextTag = cmd->ulpContext; - if (phba->sli_rev == LPFC_SLI_REV4) - icmd->un.acxri.abortIoTag = iocb->sli4_xritag; - else - icmd->un.acxri.abortIoTag = cmd->ulpIoTag; - - icmd->ulpLe = 1; - icmd->ulpClass = cmd->ulpClass; - - /* ABTS WQE must go to the same WQ as the WQE to be aborted */ - abtsiocb->hba_wqidx = iocb->hba_wqidx; - abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; - if (iocb->iocb_flag & LPFC_IO_FOF) - abtsiocb->iocb_flag |= LPFC_IO_FOF; - - if (lpfc_is_link_up(phba)) - icmd->ulpCommand = CMD_ABORT_XRI_CN; - else - icmd->ulpCommand = CMD_CLOSE_XRI_CN; - - abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; - abtsiocb->vport = vport; + lpfc_cmd->waitq = &waitq; if (phba->sli_rev == LPFC_SLI_REV4) { - pring_s4 = lpfc_sli4_calc_ring(phba, iocb); - if (pring_s4 == NULL) { - ret = FAILED; - goto out_unlock; - } - /* Note: both hbalock and ring_lock must be set here */ - spin_lock_irqsave(&pring_s4->ring_lock, iflags); - ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno, - abtsiocb, 0); - spin_unlock_irqrestore(&pring_s4->ring_lock, iflags); + spin_unlock(&pring_s4->ring_lock); + ret_val = lpfc_sli4_issue_abort_iotag(phba, iocb, + lpfc_sli_abort_fcp_cmpl); } else { - ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, - abtsiocb, 0); + pring = &phba->sli.sli3_ring[LPFC_FCP_RING]; + ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocb, + lpfc_sli_abort_fcp_cmpl); } - /* no longer need the lock after this point */ - spin_unlock_irqrestore(&phba->hbalock, flags); + /* Make sure HBA is alive */ + lpfc_issue_hb_tmo(phba); - if (ret_val == IOCB_ERROR) { - lpfc_sli_release_iocbq(phba, abtsiocb); + if (ret_val != IOCB_SUCCESS) { + /* Indicate the IO is not being aborted by the driver. */ + lpfc_cmd->waitq = NULL; ret = FAILED; - goto out; + goto out_unlock_hba; } + /* no longer need the lock after this point */ + spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&lpfc_cmd->buf_lock, flags); + if (phba->cfg_poll & DISABLE_FCP_RING_INT) lpfc_sli_handle_fast_ring_event(phba, &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); wait_for_cmpl: - lpfc_cmd->waitq = &waitq; - /* Wait for abort to complete */ - wait_event_timeout(waitq, - (lpfc_cmd->pCmd != cmnd), - msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000)); + /* + * cmd_flag is set to LPFC_DRIVER_ABORTED before we wait + * for abort to complete. + */ + wait_event_timeout(waitq, (lpfc_cmd->pCmd != cmnd), + secs_to_jiffies(2*vport->cfg_devloss_tmo)); - spin_lock_irqsave(shost->host_lock, flags); - lpfc_cmd->waitq = NULL; - spin_unlock_irqrestore(shost->host_lock, flags); + spin_lock(&lpfc_cmd->buf_lock); if (lpfc_cmd->pCmd == cmnd) { ret = FAILED; - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "0748 abort handler timed out waiting " "for aborting I/O (xri:x%x) to complete: " "ret %#x, ID %d, LUN %llu\n", iocb->sli4_xritag, ret, cmnd->device->id, cmnd->device->lun); } + + lpfc_cmd->waitq = NULL; + + spin_unlock(&lpfc_cmd->buf_lock); goto out; -out_unlock: - spin_unlock_irqrestore(&phba->hbalock, flags); +out_unlock_ring: + if (phba->sli_rev == LPFC_SLI_REV4) + spin_unlock(&pring_s4->ring_lock); +out_unlock_hba: + spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&lpfc_cmd->buf_lock, flags); out: lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "0749 SCSI Layer I/O Abort Request Status x%x ID %d " @@ -4888,7 +5711,7 @@ lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) /** * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. + * @lpfc_cmd: Pointer to lpfc_io_buf data structure. * * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded * @@ -4897,7 +5720,7 @@ lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) * 0x2002 - Success **/ static int -lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) +lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd) { struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; uint32_t rsp_info; @@ -4922,7 +5745,12 @@ lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) rsp_info, rsp_len, rsp_info_code); - if ((fcprsp->rspStatus2&RSP_LEN_VALID) && (rsp_len == 8)) { + /* If FCP_RSP_LEN_VALID bit is one, then the FCP_RSP_LEN + * field specifies the number of valid bytes of FCP_RSP_INFO. + * The FCP_RSP_LEN field shall be set to 0x04 or 0x08 + */ + if ((fcprsp->rspStatus2 & RSP_LEN_VALID) && + ((rsp_len == 8) || (rsp_len == 4))) { switch (rsp_info_code) { case RSP_NO_FAILURE: lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, @@ -4954,7 +5782,7 @@ lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) /** * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler * @vport: The virtual port for which this call is being executed. - * @rdata: Pointer to remote port local data + * @rport: Pointer to remote port * @tgt_id: Target ID of remote device. * @lun_id: Lun number for the TMF * @task_mgmt_cmd: type of TMF to send @@ -4967,12 +5795,12 @@ lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) * 0x2002 - Success. **/ static int -lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, +lpfc_send_taskmgmt(struct lpfc_vport *vport, struct fc_rport *rport, unsigned int tgt_id, uint64_t lun_id, uint8_t task_mgmt_cmd) { struct lpfc_hba *phba = vport->phba; - struct lpfc_scsi_buf *lpfc_cmd; + struct lpfc_io_buf *lpfc_cmd; struct lpfc_iocbq *iocbq; struct lpfc_iocbq *iocbqrsp; struct lpfc_rport_data *rdata; @@ -4980,20 +5808,21 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, int ret; int status; - rdata = lpfc_rport_data_from_scsi_device(cmnd->device); - if (!rdata || !rdata->pnode || !NLP_CHK_NODE_ACT(rdata->pnode)) + rdata = rport->dd_data; + if (!rdata || !rdata->pnode) return FAILED; pnode = rdata->pnode; - lpfc_cmd = lpfc_get_scsi_buf(phba, pnode); + lpfc_cmd = lpfc_get_scsi_buf(phba, rdata->pnode, NULL); if (lpfc_cmd == NULL) return FAILED; lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo; lpfc_cmd->rdata = rdata; - lpfc_cmd->pCmd = cmnd; + lpfc_cmd->pCmd = NULL; + lpfc_cmd->ndlp = pnode; - status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, - task_mgmt_cmd); + status = phba->lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, + task_mgmt_cmd); if (!status) { lpfc_release_scsi_buf(phba, lpfc_cmd); return FAILED; @@ -5005,38 +5834,41 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, lpfc_release_scsi_buf(phba, lpfc_cmd); return FAILED; } - iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; + iocbq->cmd_cmpl = lpfc_tskmgmt_def_cmpl; + iocbq->vport = vport; lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, "0702 Issue %s to TGT %d LUN %llu " - "rpi x%x nlp_flag x%x Data: x%x x%x\n", + "rpi x%x nlp_flag x%lx Data: x%x x%x\n", lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, - iocbq->iocb_flag); + iocbq->cmd_flag); status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, iocbq, iocbqrsp, lpfc_cmd->timeout); if ((status != IOCB_SUCCESS) || - (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) { + (get_job_ulpstatus(phba, iocbqrsp) != IOSTAT_SUCCESS)) { if (status != IOCB_SUCCESS || - iocbqrsp->iocb.ulpStatus != IOSTAT_FCP_RSP_ERROR) - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + get_job_ulpstatus(phba, iocbqrsp) != IOSTAT_FCP_RSP_ERROR) + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "0727 TMF %s to TGT %d LUN %llu " - "failed (%d, %d) iocb_flag x%x\n", + "failed (%d, %d) cmd_flag x%x\n", lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, - iocbqrsp->iocb.ulpStatus, - iocbqrsp->iocb.un.ulpWord[4], - iocbq->iocb_flag); + get_job_ulpstatus(phba, iocbqrsp), + get_job_word4(phba, iocbqrsp), + iocbq->cmd_flag); /* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */ if (status == IOCB_SUCCESS) { - if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) + if (get_job_ulpstatus(phba, iocbqrsp) == + IOSTAT_FCP_RSP_ERROR) /* Something in the FCP_RSP was invalid. * Check conditions */ ret = lpfc_check_fcp_rsp(vport, lpfc_cmd); else ret = FAILED; - } else if (status == IOCB_TIMEDOUT) { + } else if ((status == IOCB_TIMEDOUT) || + (status == IOCB_ABORTED)) { ret = TIMEOUT_ERROR; } else { ret = FAILED; @@ -5046,7 +5878,7 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, lpfc_sli_release_iocbq(phba, iocbqrsp); - if (ret != TIMEOUT_ERROR) + if (status != IOCB_TIMEDOUT) lpfc_release_scsi_buf(phba, lpfc_cmd); return ret; @@ -5055,7 +5887,7 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, /** * lpfc_chk_tgt_mapped - * @vport: The virtual port to check on - * @cmnd: Pointer to scsi_cmnd data structure. + * @rport: Pointer to fc_rport data structure. * * This routine delays until the scsi target (aka rport) for the * command exists (is present and logged in) or we declare it non-existent. @@ -5065,37 +5897,37 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, * 0x2002 - Success **/ static int -lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) +lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct fc_rport *rport) { struct lpfc_rport_data *rdata; - struct lpfc_nodelist *pnode; + struct lpfc_nodelist *pnode = NULL; unsigned long later; - rdata = lpfc_rport_data_from_scsi_device(cmnd->device); + rdata = rport->dd_data; if (!rdata) { lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, - "0797 Tgt Map rport failure: rdata x%p\n", rdata); + "0797 Tgt Map rport failure: rdata x%px\n", rdata); return FAILED; } pnode = rdata->pnode; + /* * If target is not in a MAPPED state, delay until * target is rediscovered or devloss timeout expires. */ - later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; + later = secs_to_jiffies(2 * vport->cfg_devloss_tmo) + jiffies; while (time_after(later, jiffies)) { - if (!pnode || !NLP_CHK_NODE_ACT(pnode)) + if (!pnode) return FAILED; if (pnode->nlp_state == NLP_STE_MAPPED_NODE) return SUCCESS; schedule_timeout_uninterruptible(msecs_to_jiffies(500)); - rdata = lpfc_rport_data_from_scsi_device(cmnd->device); + rdata = rport->dd_data; if (!rdata) return FAILED; pnode = rdata->pnode; } - if (!pnode || !NLP_CHK_NODE_ACT(pnode) || - (pnode->nlp_state != NLP_STE_MAPPED_NODE)) + if (!pnode || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) return FAILED; return SUCCESS; } @@ -5103,7 +5935,7 @@ lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) /** * lpfc_reset_flush_io_context - * @vport: The virtual port (scsi_host) for the flush context - * @tgt_id: If aborting by Target contect - specifies the target id + * @tgt_id: If aborting by Target context - specifies the target id * @lun_id: If aborting by Lun context - specifies the lun id * @context: specifies the context level to flush at. * @@ -5129,13 +5961,13 @@ lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, lpfc_sli_abort_taskmgmt(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], tgt_id, lun_id, context); - later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; + later = secs_to_jiffies(2 * vport->cfg_devloss_tmo) + jiffies; while (time_after(later, jiffies) && cnt) { schedule_timeout_uninterruptible(msecs_to_jiffies(20)); cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); } if (cnt) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "0724 I/O flush failure for context %s : cnt x%x\n", ((context == LPFC_CTX_LUN) ? "LUN" : ((context == LPFC_CTX_TGT) ? "TGT" : @@ -5161,6 +5993,7 @@ static int lpfc_device_reset_handler(struct scsi_cmnd *cmnd) { struct Scsi_Host *shost = cmnd->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_rport_data *rdata; struct lpfc_nodelist *pnode; @@ -5168,23 +6001,27 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd) uint64_t lun_id = cmnd->device->lun; struct lpfc_scsi_event_header scsi_event; int status; + u32 logit = LOG_FCP; - rdata = lpfc_rport_data_from_scsi_device(cmnd->device); + if (!rport) + return FAILED; + + rdata = rport->dd_data; if (!rdata || !rdata->pnode) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "0798 Device Reset rport failure: rdata x%p\n", + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "0798 Device Reset rdata failure: rdata x%px\n", rdata); return FAILED; } pnode = rdata->pnode; - status = fc_block_scsi_eh(cmnd); + status = fc_block_rport(rport); if (status != 0 && status != SUCCESS) return status; - status = lpfc_chk_tgt_mapped(vport, cmnd); + status = lpfc_chk_tgt_mapped(vport, rport); if (status == FAILED) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "0721 Device Reset rport failure: rdata x%p\n", rdata); + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "0721 Device Reset rport failure: rdata x%px\n", rdata); return FAILED; } @@ -5197,10 +6034,12 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd) fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); - status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, + status = lpfc_send_taskmgmt(vport, rport, tgt_id, lun_id, FCP_LUN_RESET); + if (status != SUCCESS) + logit = LOG_TRACE_EVENT; - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + lpfc_printf_vlog(vport, KERN_ERR, logit, "0713 SCSI layer issued Device Reset (%d, %llu) " "return x%x\n", tgt_id, lun_id, status); @@ -5232,6 +6071,7 @@ static int lpfc_target_reset_handler(struct scsi_cmnd *cmnd) { struct Scsi_Host *shost = cmnd->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_rport_data *rdata; struct lpfc_nodelist *pnode; @@ -5239,30 +6079,44 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd) uint64_t lun_id = cmnd->device->lun; struct lpfc_scsi_event_header scsi_event; int status; + u32 logit = LOG_FCP; + u32 dev_loss_tmo = vport->cfg_devloss_tmo; + unsigned long flags; + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); - rdata = lpfc_rport_data_from_scsi_device(cmnd->device); - if (!rdata) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "0799 Target Reset rport failure: rdata x%p\n", rdata); + if (!rport) + return FAILED; + + rdata = rport->dd_data; + if (!rdata || !rdata->pnode) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "0799 Target Reset rdata failure: rdata x%px\n", + rdata); return FAILED; } pnode = rdata->pnode; - status = fc_block_scsi_eh(cmnd); + status = fc_block_rport(rport); if (status != 0 && status != SUCCESS) return status; - status = lpfc_chk_tgt_mapped(vport, cmnd); + status = lpfc_chk_tgt_mapped(vport, rport); if (status == FAILED) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "0722 Target Reset rport failure: rdata x%p\n", rdata); + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "0722 Target Reset rport failure: rdata x%px\n", rdata); if (pnode) { - spin_lock_irq(shost->host_lock); - pnode->nlp_flag &= ~NLP_NPR_ADISC; + clear_bit(NLP_NPR_ADISC, &pnode->nlp_flag); + spin_lock_irqsave(&pnode->lock, flags); pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; - spin_unlock_irq(shost->host_lock); + spin_unlock_irqrestore(&pnode->lock, flags); + } + status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, + LPFC_CTX_TGT); + if (status != SUCCESS) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + "0726 Target Reset flush status x%x\n", + status); + return status; } - lpfc_reset_flush_io_context(vport, tgt_id, lun_id, - LPFC_CTX_TGT); return FAST_IO_FAIL; } @@ -5275,10 +6129,45 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd) fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); - status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, + status = lpfc_send_taskmgmt(vport, rport, tgt_id, lun_id, FCP_TARGET_RESET); + if (status != SUCCESS) { + logit = LOG_TRACE_EVENT; + + /* Issue LOGO, if no LOGO is outstanding */ + spin_lock_irqsave(&pnode->lock, flags); + if (!test_bit(NLP_WAIT_FOR_LOGO, &pnode->save_flags) && + !pnode->logo_waitq) { + pnode->logo_waitq = &waitq; + pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; + spin_unlock_irqrestore(&pnode->lock, flags); + set_bit(NLP_ISSUE_LOGO, &pnode->nlp_flag); + set_bit(NLP_WAIT_FOR_LOGO, &pnode->save_flags); + lpfc_unreg_rpi(vport, pnode); + wait_event_timeout(waitq, + !test_bit(NLP_WAIT_FOR_LOGO, + &pnode->save_flags), + secs_to_jiffies(dev_loss_tmo)); + + if (test_and_clear_bit(NLP_WAIT_FOR_LOGO, + &pnode->save_flags)) + lpfc_printf_vlog(vport, KERN_ERR, logit, + "0725 SCSI layer TGTRST " + "failed & LOGO TMO (%d, %llu) " + "return x%x\n", + tgt_id, lun_id, status); + spin_lock_irqsave(&pnode->lock, flags); + pnode->logo_waitq = NULL; + spin_unlock_irqrestore(&pnode->lock, flags); + status = SUCCESS; - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + } else { + spin_unlock_irqrestore(&pnode->lock, flags); + status = FAILED; + } + } + + lpfc_printf_vlog(vport, KERN_ERR, logit, "0723 SCSI layer issued Target Reset (%d, %llu) " "return x%x\n", tgt_id, lun_id, status); @@ -5295,93 +6184,6 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd) } /** - * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point - * @cmnd: Pointer to scsi_cmnd data structure. - * - * This routine does target reset to all targets on @cmnd->device->host. - * This emulates Parallel SCSI Bus Reset Semantics. - * - * Return code : - * 0x2003 - Error - * 0x2002 - Success - **/ -static int -lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) -{ - struct Scsi_Host *shost = cmnd->device->host; - struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; - struct lpfc_nodelist *ndlp = NULL; - struct lpfc_scsi_event_header scsi_event; - int match; - int ret = SUCCESS, status, i; - - scsi_event.event_type = FC_REG_SCSI_EVENT; - scsi_event.subcategory = LPFC_EVENT_BUSRESET; - scsi_event.lun = 0; - memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); - memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); - - fc_host_post_vendor_event(shost, fc_get_event_number(), - sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); - - status = fc_block_scsi_eh(cmnd); - if (status != 0 && status != SUCCESS) - return status; - - /* - * Since the driver manages a single bus device, reset all - * targets known to the driver. Should any target reset - * fail, this routine returns failure to the midlayer. - */ - for (i = 0; i < LPFC_MAX_TARGET; i++) { - /* Search for mapped node by target ID */ - match = 0; - spin_lock_irq(shost->host_lock); - list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { - if (!NLP_CHK_NODE_ACT(ndlp)) - continue; - if (vport->phba->cfg_fcp2_no_tgt_reset && - (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) - continue; - if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && - ndlp->nlp_sid == i && - ndlp->rport && - ndlp->nlp_type & NLP_FCP_TARGET) { - match = 1; - break; - } - } - spin_unlock_irq(shost->host_lock); - if (!match) - continue; - - status = lpfc_send_taskmgmt(vport, cmnd, - i, 0, FCP_TARGET_RESET); - - if (status != SUCCESS) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "0700 Bus Reset on target %d failed\n", - i); - ret = FAILED; - } - } - /* - * We have to clean up i/o as : they may be orphaned by the TMFs - * above; or if any of the TMFs failed, they may be in an - * indeterminate state. - * We will report success if all the i/o aborts successfully. - */ - - status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); - if (status != SUCCESS) - ret = FAILED; - - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); - return ret; -} - -/** * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt * @cmnd: Pointer to scsi_cmnd data structure. * @@ -5406,28 +6208,37 @@ lpfc_host_reset_handler(struct scsi_cmnd *cmnd) int rc, ret = SUCCESS; lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "3172 SCSI layer issued Host Reset Data:\n"); + "3172 SCSI layer issued Host Reset\n"); lpfc_offline_prep(phba, LPFC_MBX_WAIT); lpfc_offline(phba); rc = lpfc_sli_brdrestart(phba); if (rc) - ret = FAILED; + goto error; + + /* Wait for successful restart of adapter */ + if (phba->sli_rev < LPFC_SLI_REV4) { + rc = lpfc_sli_chipset_init(phba); + if (rc) + goto error; + } + rc = lpfc_online(phba); if (rc) - ret = FAILED; + goto error; + lpfc_unblock_mgmt_io(phba); - if (ret == FAILED) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, - "3323 Failed host reset, bring it offline\n"); - lpfc_sli4_offline_eratt(phba); - } return ret; +error: + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + "3323 Failed host reset\n"); + lpfc_unblock_mgmt_io(phba); + return FAILED; } /** - * lpfc_slave_alloc - scsi_host_template slave_alloc entry point + * lpfc_sdev_init - scsi_host_template sdev_init entry point * @sdev: Pointer to scsi_device. * * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's @@ -5440,7 +6251,7 @@ lpfc_host_reset_handler(struct scsi_cmnd *cmnd) * 0 - Success **/ static int -lpfc_slave_alloc(struct scsi_device *sdev) +lpfc_sdev_init(struct scsi_device *sdev) { struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; @@ -5492,6 +6303,12 @@ lpfc_slave_alloc(struct scsi_device *sdev) } sdev_cnt = atomic_inc_return(&phba->sdev_cnt); + /* For SLI4, all IO buffers are pre-allocated */ + if (phba->sli_rev == LPFC_SLI_REV4) + return 0; + + /* This code path is now ONLY for SLI3 adapters */ + /* * Populate the cmds_per_lun count scsi_bufs into this host's globally * available list of scsi buffers. Don't allocate more than the @@ -5523,9 +6340,9 @@ lpfc_slave_alloc(struct scsi_device *sdev) (phba->cfg_hba_queue_depth - total)); num_to_alloc = phba->cfg_hba_queue_depth - total; } - num_allocated = lpfc_new_scsi_buf(vport, num_to_alloc); + num_allocated = lpfc_new_scsi_buf_s3(vport, num_to_alloc); if (num_to_alloc != num_allocated) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, + lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "0708 Allocation request of %d " "command buffers did not succeed. " "Allocated %d buffers.\n", @@ -5537,8 +6354,9 @@ lpfc_slave_alloc(struct scsi_device *sdev) } /** - * lpfc_slave_configure - scsi_host_template slave_configure entry point + * lpfc_sdev_configure - scsi_host_template sdev_configure entry point * @sdev: Pointer to scsi_device. + * @lim: Request queue limits. * * This routine configures following items * - Tag command queuing support for @sdev if supported. @@ -5548,7 +6366,7 @@ lpfc_slave_alloc(struct scsi_device *sdev) * 0 - Success **/ static int -lpfc_slave_configure(struct scsi_device *sdev) +lpfc_sdev_configure(struct scsi_device *sdev, struct queue_limits *lim) { struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; @@ -5566,13 +6384,13 @@ lpfc_slave_configure(struct scsi_device *sdev) } /** - * lpfc_slave_destroy - slave_destroy entry point of SHT data structure + * lpfc_sdev_destroy - sdev_destroy entry point of SHT data structure * @sdev: Pointer to scsi_device. * * This routine sets @sdev hostatdata filed to null. **/ static void -lpfc_slave_destroy(struct scsi_device *sdev) +lpfc_sdev_destroy(struct scsi_device *sdev) { struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; @@ -5593,10 +6411,11 @@ lpfc_slave_destroy(struct scsi_device *sdev) /** * lpfc_create_device_data - creates and initializes device data structure for OAS - * @pha: Pointer to host bus adapter structure. + * @phba: Pointer to host bus adapter structure. * @vport_wwpn: Pointer to vport's wwpn information * @target_wwpn: Pointer to target's wwpn information * @lun: Lun on target + * @pri: Priority * @atomic_create: Flag to indicate if memory should be allocated using the * GFP_ATOMIC flag or not. * @@ -5616,7 +6435,7 @@ lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, { struct lpfc_device_data *lun_info; - int memory_flags; + gfp_t memory_flags; if (unlikely(!phba) || !vport_wwpn || !target_wwpn || !(phba->cfg_fof)) @@ -5646,7 +6465,7 @@ lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, /** * lpfc_delete_device_data - frees a device data structure for OAS - * @pha: Pointer to host bus adapter structure. + * @phba: Pointer to host bus adapter structure. * @lun_info: Pointer to device data structure to free. * * This routine frees the previously allocated device data structure passed. @@ -5669,7 +6488,7 @@ lpfc_delete_device_data(struct lpfc_hba *phba, /** * __lpfc_get_device_data - returns the device data for the specified lun - * @pha: Pointer to host bus adapter structure. + * @phba: Pointer to host bus adapter structure. * @list: Point to list to search. * @vport_wwpn: Pointer to vport's wwpn information * @target_wwpn: Pointer to target's wwpn information @@ -5711,7 +6530,7 @@ __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, /** * lpfc_find_next_oas_lun - searches for the next oas lun - * @pha: Pointer to host bus adapter structure. + * @phba: Pointer to host bus adapter structure. * @vport_wwpn: Pointer to vport's wwpn information * @target_wwpn: Pointer to target's wwpn information * @starting_lun: Pointer to the lun to start searching for @@ -5719,6 +6538,7 @@ __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, * @found_target_wwpn: Pointer to the found lun's target wwpn information * @found_lun: Pointer to the found lun. * @found_lun_status: Pointer to status of the found lun. + * @found_lun_pri: Pointer to priority of the found lun. * * This routine searches the luns list for the specified lun * or the first lun for the vport/target. If the vport wwpn contains @@ -5813,10 +6633,11 @@ lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, /** * lpfc_enable_oas_lun - enables a lun for OAS operations - * @pha: Pointer to host bus adapter structure. + * @phba: Pointer to host bus adapter structure. * @vport_wwpn: Pointer to vport's wwpn information * @target_wwpn: Pointer to target's wwpn information * @lun: Lun + * @pri: Priority * * This routine enables a lun for oas operations. The routines does so by * doing the following : @@ -5858,7 +6679,7 @@ lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, /* Create an lun info structure and add to list of luns */ lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun, - pri, false); + pri, true); if (lun_info) { lun_info->oas_enabled = true; lun_info->priority = pri; @@ -5873,10 +6694,11 @@ lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, /** * lpfc_disable_oas_lun - disables a lun for OAS operations - * @pha: Pointer to host bus adapter structure. + * @phba: Pointer to host bus adapter structure. * @vport_wwpn: Pointer to vport's wwpn information * @target_wwpn: Pointer to target's wwpn information * @lun: Lun + * @pri: Priority * * This routine disables a lun for oas operations. The routines does so by * doing the following : @@ -5928,13 +6750,13 @@ lpfc_no_command(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } static int -lpfc_no_handler(struct scsi_cmnd *cmnd) +lpfc_init_no_sdev(struct scsi_device *sdev) { - return FAILED; + return -ENODEV; } static int -lpfc_no_slave(struct scsi_device *sdev) +lpfc_config_no_sdev(struct scsi_device *sdev, struct queue_limits *lim) { return -ENODEV; } @@ -5945,50 +6767,18 @@ struct scsi_host_template lpfc_template_nvme = { .proc_name = LPFC_DRIVER_NAME, .info = lpfc_info, .queuecommand = lpfc_no_command, - .eh_abort_handler = lpfc_no_handler, - .eh_device_reset_handler = lpfc_no_handler, - .eh_target_reset_handler = lpfc_no_handler, - .eh_bus_reset_handler = lpfc_no_handler, - .eh_host_reset_handler = lpfc_no_handler, - .slave_alloc = lpfc_no_slave, - .slave_configure = lpfc_no_slave, + .sdev_init = lpfc_init_no_sdev, + .sdev_configure = lpfc_config_no_sdev, .scan_finished = lpfc_scan_finished, .this_id = -1, .sg_tablesize = 1, .cmd_per_lun = 1, - .use_clustering = ENABLE_CLUSTERING, - .shost_attrs = lpfc_hba_attrs, - .max_sectors = 0xFFFF, + .shost_groups = lpfc_hba_groups, + .max_sectors = 0xFFFFFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .track_queue_depth = 0, }; -struct scsi_host_template lpfc_template_no_hr = { - .module = THIS_MODULE, - .name = LPFC_DRIVER_NAME, - .proc_name = LPFC_DRIVER_NAME, - .info = lpfc_info, - .queuecommand = lpfc_queuecommand, - .eh_timed_out = fc_eh_timed_out, - .eh_abort_handler = lpfc_abort_handler, - .eh_device_reset_handler = lpfc_device_reset_handler, - .eh_target_reset_handler = lpfc_target_reset_handler, - .eh_bus_reset_handler = lpfc_bus_reset_handler, - .slave_alloc = lpfc_slave_alloc, - .slave_configure = lpfc_slave_configure, - .slave_destroy = lpfc_slave_destroy, - .scan_finished = lpfc_scan_finished, - .this_id = -1, - .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, - .cmd_per_lun = LPFC_CMD_PER_LUN, - .use_clustering = ENABLE_CLUSTERING, - .shost_attrs = lpfc_hba_attrs, - .max_sectors = 0xFFFF, - .vendor_id = LPFC_NL_VENDOR_ID, - .change_queue_depth = scsi_change_queue_depth, - .track_queue_depth = 1, -}; - struct scsi_host_template lpfc_template = { .module = THIS_MODULE, .name = LPFC_DRIVER_NAME, @@ -5996,21 +6786,20 @@ struct scsi_host_template lpfc_template = { .info = lpfc_info, .queuecommand = lpfc_queuecommand, .eh_timed_out = fc_eh_timed_out, + .eh_should_retry_cmd = fc_eh_should_retry_cmd, .eh_abort_handler = lpfc_abort_handler, .eh_device_reset_handler = lpfc_device_reset_handler, .eh_target_reset_handler = lpfc_target_reset_handler, - .eh_bus_reset_handler = lpfc_bus_reset_handler, .eh_host_reset_handler = lpfc_host_reset_handler, - .slave_alloc = lpfc_slave_alloc, - .slave_configure = lpfc_slave_configure, - .slave_destroy = lpfc_slave_destroy, + .sdev_init = lpfc_sdev_init, + .sdev_configure = lpfc_sdev_configure, + .sdev_destroy = lpfc_sdev_destroy, .scan_finished = lpfc_scan_finished, .this_id = -1, .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, .cmd_per_lun = LPFC_CMD_PER_LUN, - .use_clustering = ENABLE_CLUSTERING, - .shost_attrs = lpfc_hba_attrs, - .max_sectors = 0xFFFF, + .shost_groups = lpfc_hba_groups, + .max_sectors = 0xFFFFFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = scsi_change_queue_depth, .track_queue_depth = 1, @@ -6023,19 +6812,22 @@ struct scsi_host_template lpfc_vport_template = { .info = lpfc_info, .queuecommand = lpfc_queuecommand, .eh_timed_out = fc_eh_timed_out, + .eh_should_retry_cmd = fc_eh_should_retry_cmd, .eh_abort_handler = lpfc_abort_handler, .eh_device_reset_handler = lpfc_device_reset_handler, .eh_target_reset_handler = lpfc_target_reset_handler, - .slave_alloc = lpfc_slave_alloc, - .slave_configure = lpfc_slave_configure, - .slave_destroy = lpfc_slave_destroy, + .eh_bus_reset_handler = NULL, + .eh_host_reset_handler = NULL, + .sdev_init = lpfc_sdev_init, + .sdev_configure = lpfc_sdev_configure, + .sdev_destroy = lpfc_sdev_destroy, .scan_finished = lpfc_scan_finished, .this_id = -1, .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, .cmd_per_lun = LPFC_CMD_PER_LUN, - .use_clustering = ENABLE_CLUSTERING, - .shost_attrs = lpfc_vport_attrs, - .max_sectors = 0xFFFF, + .shost_groups = lpfc_vport_groups, + .max_sectors = 0xFFFFFFFF, + .vendor_id = 0, .change_queue_depth = scsi_change_queue_depth, .track_queue_depth = 1, }; |