From f605208e01f5b8ee7b44f3624ec8807cfe85ea7e Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Sun, 29 Jan 2017 20:04:49 -0700 Subject: nvme: fix compilation of scsi component Since we moved the cdb parts and define out of the block proper, we need to include scsi/scsi_request.h for the nvme scsi layer. Fixes: 82ed4db499b8 ("block: split scsi_request out of struct request") Reported-by: Stephen Rothwell Signed-off-by: Jens Axboe --- drivers/nvme/host/scsi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/nvme') diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c index a5c09e703bd8..0f0fcea9a2c1 100644 --- a/drivers/nvme/host/scsi.c +++ b/drivers/nvme/host/scsi.c @@ -43,6 +43,7 @@ #include #include #include +#include #include "nvme.h" -- cgit v1.2.3-58-ga151 From 1a7347c7dba9c88f47d1b81622917794b2e2ade3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 28 Jan 2017 09:32:49 +0100 Subject: nvme/scsi: don't rely on BLK_MAX_CDB The NVMe SCSI emulation doesn't use BLOCK_PC requests, so BLK_MAX_CDB doesn't have a meaning for it. Instead opencode the value of 16 and refactor the code a bit so that related checks are next to each other and we only need to use the value in one place. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- drivers/nvme/host/scsi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/nvme') diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c index 0f0fcea9a2c1..f49ae2758bb7 100644 --- a/drivers/nvme/host/scsi.c +++ b/drivers/nvme/host/scsi.c @@ -2348,12 +2348,14 @@ static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr, static int nvme_scsi_translate(struct nvme_ns *ns, struct sg_io_hdr *hdr) { - u8 cmd[BLK_MAX_CDB]; + u8 cmd[16]; int retcode; unsigned int opcode; if (hdr->cmdp == NULL) return -EMSGSIZE; + if (hdr->cmd_len > sizeof(cmd)) + return -EINVAL; if (copy_from_user(cmd, hdr->cmdp, hdr->cmd_len)) return -EFAULT; @@ -2452,8 +2454,6 @@ int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr) return -EFAULT; if (hdr.interface_id != 'S') return -EINVAL; - if (hdr.cmd_len > BLK_MAX_CDB) - return -EINVAL; /* * A positive return code means a NVMe status, which has been -- cgit v1.2.3-58-ga151 From 57292b58ddb58689e8c3b4c6eadbef10d9ca44dd Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 31 Jan 2017 16:57:29 +0100 Subject: block: introduce blk_rq_is_passthrough This can be used to check for fs vs non-fs requests and basically removes all knowledge of BLOCK_PC specific from the block layer, as well as preparing for removing the cmd_type field in struct request. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- block/blk-core.c | 8 ++++---- block/blk-exec.c | 2 +- block/blk.h | 2 +- block/elevator.c | 4 ++-- block/mq-deadline.c | 2 +- drivers/ata/libata-scsi.c | 2 +- drivers/block/cciss.c | 36 +++++++++++++++++------------------ drivers/nvme/host/fc.c | 2 +- drivers/nvme/host/pci.c | 4 ++-- drivers/nvme/host/rdma.c | 4 ++-- drivers/nvme/target/loop.c | 2 +- drivers/scsi/hpsa.c | 4 ++-- drivers/scsi/scsi.c | 2 +- drivers/scsi/scsi_error.c | 4 ++-- drivers/scsi/scsi_lib.c | 6 +++--- drivers/scsi/smartpqi/smartpqi_init.c | 2 +- drivers/scsi/sun3_scsi.c | 2 +- include/linux/blkdev.h | 16 +++++++++++----- include/linux/blktrace_api.h | 4 ++-- include/scsi/scsi_cmnd.h | 2 +- kernel/trace/blktrace.c | 2 +- 21 files changed, 59 insertions(+), 53 deletions(-) (limited to 'drivers/nvme') diff --git a/block/blk-core.c b/block/blk-core.c index 95829523cded..44431086e4e7 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2506,10 +2506,10 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes) * TODO: tj: This is too subtle. It would be better to let * low level drivers do what they see fit. */ - if (req->cmd_type == REQ_TYPE_FS) + if (!blk_rq_is_passthrough(req)) req->errors = 0; - if (error && req->cmd_type == REQ_TYPE_FS && + if (error && !blk_rq_is_passthrough(req) && !(req->rq_flags & RQF_QUIET)) { char *error_type; @@ -2581,7 +2581,7 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes) req->__data_len -= total_bytes; /* update sector only for requests with clear definition of sector */ - if (req->cmd_type == REQ_TYPE_FS) + if (!blk_rq_is_passthrough(req)) req->__sector += total_bytes >> 9; /* mixed attributes always follow the first bio */ @@ -2659,7 +2659,7 @@ void blk_finish_request(struct request *req, int error) BUG_ON(blk_queued_rq(req)); - if (unlikely(laptop_mode) && req->cmd_type == REQ_TYPE_FS) + if (unlikely(laptop_mode) && !blk_rq_is_passthrough(req)) laptop_io_completion(&req->q->backing_dev_info); blk_delete_timer(req); diff --git a/block/blk-exec.c b/block/blk-exec.c index ed51800f4b44..8cd0e9bc8dc8 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -51,7 +51,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, int where = at_head ? ELEVATOR_INSERT_FRONT : ELEVATOR_INSERT_BACK; WARN_ON(irqs_disabled()); - WARN_ON(rq->cmd_type == REQ_TYPE_FS); + WARN_ON(!blk_rq_is_passthrough(rq)); rq->rq_disk = bd_disk; rq->end_io = done; diff --git a/block/blk.h b/block/blk.h index 9a716b5925a4..c1bd4bf9e645 100644 --- a/block/blk.h +++ b/block/blk.h @@ -249,7 +249,7 @@ static inline int blk_do_io_stat(struct request *rq) { return rq->rq_disk && (rq->rq_flags & RQF_IO_STAT) && - (rq->cmd_type == REQ_TYPE_FS); + !blk_rq_is_passthrough(rq); } /* diff --git a/block/elevator.c b/block/elevator.c index ef7f59469acc..dba9be891a6b 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -634,7 +634,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where) if (rq->rq_flags & RQF_SOFTBARRIER) { /* barriers are scheduling boundary, update end_sector */ - if (rq->cmd_type == REQ_TYPE_FS) { + if (!blk_rq_is_passthrough(rq)) { q->end_sector = rq_end_sector(rq); q->boundary_rq = rq; } @@ -676,7 +676,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where) if (elv_attempt_insert_merge(q, rq)) break; case ELEVATOR_INSERT_SORT: - BUG_ON(rq->cmd_type != REQ_TYPE_FS); + BUG_ON(blk_rq_is_passthrough(rq)); rq->rq_flags |= RQF_SORTED; q->nr_sorted++; if (rq_mergeable(rq)) { diff --git a/block/mq-deadline.c b/block/mq-deadline.c index d93ec713fa62..49583536698c 100644 --- a/block/mq-deadline.c +++ b/block/mq-deadline.c @@ -398,7 +398,7 @@ static void dd_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, if (blk_mq_sched_bypass_insert(hctx, rq)) return; - if (at_head || rq->cmd_type != REQ_TYPE_FS) { + if (at_head || blk_rq_is_passthrough(rq)) { if (at_head) list_add(&rq->queuelist, &dd->dispatch); else diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 6abd73975f87..c771d4c341ea 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1265,7 +1265,7 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev) */ static int atapi_drain_needed(struct request *rq) { - if (likely(rq->cmd_type != REQ_TYPE_BLOCK_PC)) + if (likely(!blk_rq_is_passthrough(rq))) return 0; if (!blk_rq_bytes(rq) || op_is_write(req_op(rq))) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index b93bb73b49d2..53dc2971a3ba 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1854,7 +1854,7 @@ static void cciss_softirq_done(struct request *rq) dev_dbg(&h->pdev->dev, "Done with %p\n", rq); /* set the residual count for pc requests */ - if (rq->cmd_type == REQ_TYPE_BLOCK_PC) + if (blk_rq_is_passthrough(rq)) scsi_req(rq)->resid_len = c->err_info->ResidualCnt; blk_end_request_all(rq, (rq->errors == 0) ? 0 : -EIO); @@ -3083,7 +3083,7 @@ static inline int evaluate_target_status(ctlr_info_t *h, driver_byte = DRIVER_OK; msg_byte = cmd->err_info->CommandStatus; /* correct? seems too device specific */ - if (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) + if (blk_rq_is_passthrough(cmd->rq)) host_byte = DID_PASSTHROUGH; else host_byte = DID_OK; @@ -3092,7 +3092,7 @@ static inline int evaluate_target_status(ctlr_info_t *h, host_byte, driver_byte); if (cmd->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION) { - if (cmd->rq->cmd_type != REQ_TYPE_BLOCK_PC) + if (!blk_rq_is_passthrough(cmd->rq)) dev_warn(&h->pdev->dev, "cmd %p " "has SCSI Status 0x%x\n", cmd, cmd->err_info->ScsiStatus); @@ -3103,16 +3103,16 @@ static inline int evaluate_target_status(ctlr_info_t *h, sense_key = 0xf & cmd->err_info->SenseInfo[2]; /* no status or recovered error */ if (((sense_key == 0x0) || (sense_key == 0x1)) && - (cmd->rq->cmd_type != REQ_TYPE_BLOCK_PC)) + !blk_rq_is_passthrough(cmd->rq)) error_value = 0; if (check_for_unit_attention(h, cmd)) { - *retry_cmd = !(cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC); + *retry_cmd = !blk_rq_is_passthrough(cmd->rq); return 0; } /* Not SG_IO or similar? */ - if (cmd->rq->cmd_type != REQ_TYPE_BLOCK_PC) { + if (!blk_rq_is_passthrough(cmd->rq)) { if (error_value != 0) dev_warn(&h->pdev->dev, "cmd %p has CHECK CONDITION" " sense key = 0x%x\n", cmd, sense_key); @@ -3146,14 +3146,14 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, rq->errors = evaluate_target_status(h, cmd, &retry_cmd); break; case CMD_DATA_UNDERRUN: - if (cmd->rq->cmd_type == REQ_TYPE_FS) { + if (!blk_rq_is_passthrough(cmd->rq)) { dev_warn(&h->pdev->dev, "cmd %p has" " completed with data underrun " "reported\n", cmd); } break; case CMD_DATA_OVERRUN: - if (cmd->rq->cmd_type == REQ_TYPE_FS) + if (!blk_rq_is_passthrough(cmd->rq)) dev_warn(&h->pdev->dev, "cciss: cmd %p has" " completed with data overrun " "reported\n", cmd); @@ -3163,7 +3163,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, "reported invalid\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; case CMD_PROTOCOL_ERR: @@ -3171,7 +3171,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, "protocol error\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; case CMD_HARDWARE_ERR: @@ -3179,7 +3179,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, " hardware error\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; case CMD_CONNECTION_LOST: @@ -3187,7 +3187,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, "connection lost\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; case CMD_ABORTED: @@ -3195,7 +3195,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, "aborted\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ABORT); break; case CMD_ABORT_FAILED: @@ -3203,7 +3203,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, "abort failed\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; case CMD_UNSOLICITED_ABORT: @@ -3218,21 +3218,21 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, "%p retried too many times\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ABORT); break; case CMD_TIMEOUT: dev_warn(&h->pdev->dev, "cmd %p timedout\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; case CMD_UNABORTABLE: dev_warn(&h->pdev->dev, "cmd %p unabortable\n", cmd); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); break; default: @@ -3241,7 +3241,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, cmd->err_info->CommandStatus); rq->errors = make_status_bytes(SAM_STAT_GOOD, cmd->err_info->CommandStatus, DRIVER_OK, - (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? + blk_rq_is_passthrough(cmd->rq) ? DID_PASSTHROUGH : DID_ERROR); } diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index fcc9dcfdf675..40c979b777b8 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -1937,7 +1937,7 @@ nvme_fc_complete_rq(struct request *rq) return; } - if (rq->cmd_type == REQ_TYPE_DRV_PRIV) + if (blk_rq_is_passthrough(rq)) error = rq->errors; else error = nvme_error_status(rq->errors); diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 7103bce4ba4f..f29365b8c9be 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -588,7 +588,7 @@ static int nvme_queue_rq(struct blk_mq_hw_ctx *hctx, */ if (ns && ns->ms && !blk_integrity_rq(req)) { if (!(ns->pi_type && ns->ms == 8) && - req->cmd_type != REQ_TYPE_DRV_PRIV) { + !blk_rq_is_passthrough(req)) { blk_mq_end_request(req, -EFAULT); return BLK_MQ_RQ_QUEUE_OK; } @@ -645,7 +645,7 @@ static void nvme_complete_rq(struct request *req) return; } - if (req->cmd_type == REQ_TYPE_DRV_PRIV) + if (blk_rq_is_passthrough(req)) error = req->errors; else error = nvme_error_status(req->errors); diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 557f29b1f1bb..ecc79b2fcfaf 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1423,7 +1423,7 @@ static inline bool nvme_rdma_queue_is_ready(struct nvme_rdma_queue *queue, if (unlikely(!test_bit(NVME_RDMA_Q_LIVE, &queue->flags))) { struct nvme_command *cmd = nvme_req(rq)->cmd; - if (rq->cmd_type != REQ_TYPE_DRV_PRIV || + if (!blk_rq_is_passthrough(rq) || cmd->common.opcode != nvme_fabrics_command || cmd->fabrics.fctype != nvme_fabrics_type_connect) return false; @@ -1522,7 +1522,7 @@ static void nvme_rdma_complete_rq(struct request *rq) return; } - if (rq->cmd_type == REQ_TYPE_DRV_PRIV) + if (blk_rq_is_passthrough(rq)) error = rq->errors; else error = nvme_error_status(rq->errors); diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 9aaa70071ae5..f3862e38f574 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -104,7 +104,7 @@ static void nvme_loop_complete_rq(struct request *req) return; } - if (req->cmd_type == REQ_TYPE_DRV_PRIV) + if (blk_rq_is_passthrough(req)) error = req->errors; else error = nvme_error_status(req->errors); diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index cbc0c5fe5a60..c611412a8de9 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -5539,8 +5539,8 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) * Retries always go down the normal I/O path. */ if (likely(cmd->retries == 0 && - cmd->request->cmd_type == REQ_TYPE_FS && - h->acciopath_status)) { + !blk_rq_is_passthrough(cmd->request) && + h->acciopath_status)) { rc = hpsa_ioaccel_submit(h, c, cmd, scsi3addr); if (rc == 0) return 0; diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 3d8d2153b448..7bfbcfa7af40 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -238,7 +238,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd) "(result %x)\n", cmd->result)); good_bytes = scsi_bufflen(cmd); - if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) { + if (!blk_rq_is_passthrough(cmd->request)) { int old_good_bytes = good_bytes; drv = scsi_cmd_to_driver(cmd); if (drv->done) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 4b40f746d534..b4ce7bb5d2a9 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1106,7 +1106,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd) static int scsi_eh_action(struct scsi_cmnd *scmd, int rtn) { - if (scmd->request->cmd_type != REQ_TYPE_BLOCK_PC) { + if (!blk_rq_is_passthrough(scmd->request)) { struct scsi_driver *sdrv = scsi_cmd_to_driver(scmd); if (sdrv->eh_action) rtn = sdrv->eh_action(scmd, rtn); @@ -1746,7 +1746,7 @@ check_type: * the check condition was retryable. */ if (scmd->request->cmd_flags & REQ_FAILFAST_DEV || - scmd->request->cmd_type == REQ_TYPE_BLOCK_PC) + blk_rq_is_passthrough(scmd->request)) return 1; else return 0; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 8188e5c71f75..31629a7b728d 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -582,7 +582,7 @@ void scsi_run_host_queues(struct Scsi_Host *shost) static void scsi_uninit_cmd(struct scsi_cmnd *cmd) { - if (cmd->request->cmd_type == REQ_TYPE_FS) { + if (!blk_rq_is_passthrough(cmd->request)) { struct scsi_driver *drv = scsi_cmd_to_driver(cmd); if (drv->uninit_command) @@ -806,7 +806,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) sense_deferred = scsi_sense_is_deferred(&sshdr); } - if (req->cmd_type == REQ_TYPE_BLOCK_PC) { /* SG_IO ioctl from block level */ + if (blk_rq_is_passthrough(req)) { if (result) { if (sense_valid) { /* @@ -847,7 +847,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) error = __scsi_error_from_host_byte(cmd, result); } - /* no bidi support for !REQ_TYPE_BLOCK_PC yet */ + /* no bidi support for !blk_rq_is_passthrough yet */ BUG_ON(blk_bidi_rq(req)); /* diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 8702d9cf8040..11c0dfb3dfa3 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -4499,7 +4499,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, if (pqi_is_logical_device(device)) { raid_bypassed = false; if (device->offload_enabled && - scmd->request->cmd_type == REQ_TYPE_FS) { + !blk_rq_is_passthrough(scmd->request)) { rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); if (rc == 0 || diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c index 88db6992420e..bcf7d05d1aab 100644 --- a/drivers/scsi/sun3_scsi.c +++ b/drivers/scsi/sun3_scsi.c @@ -260,7 +260,7 @@ static int sun3scsi_dma_xfer_len(struct NCR5380_hostdata *hostdata, { int wanted_len = cmd->SCp.this_residual; - if (wanted_len < DMA_MIN_SIZE || cmd->request->cmd_type != REQ_TYPE_FS) + if (wanted_len < DMA_MIN_SIZE || blk_rq_is_passthrough(cmd->request)) return 0; return wanted_len; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e4c5f284fe2d..7121be081517 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -242,6 +242,11 @@ struct request { struct request *next_rq; }; +static inline bool blk_rq_is_passthrough(struct request *rq) +{ + return rq->cmd_type != REQ_TYPE_FS; +} + static inline unsigned short req_get_ioprio(struct request *req) { return req->ioprio; @@ -698,9 +703,10 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q) ((rq)->cmd_flags & (REQ_FAILFAST_DEV|REQ_FAILFAST_TRANSPORT| \ REQ_FAILFAST_DRIVER)) -#define blk_account_rq(rq) \ - (((rq)->rq_flags & RQF_STARTED) && \ - ((rq)->cmd_type == REQ_TYPE_FS)) +static inline bool blk_account_rq(struct request *rq) +{ + return (rq->rq_flags & RQF_STARTED) && !blk_rq_is_passthrough(rq); +} #define blk_rq_cpu_valid(rq) ((rq)->cpu != -1) #define blk_bidi_rq(rq) ((rq)->next_rq != NULL) @@ -775,7 +781,7 @@ static inline void blk_clear_rl_full(struct request_list *rl, bool sync) static inline bool rq_mergeable(struct request *rq) { - if (rq->cmd_type != REQ_TYPE_FS) + if (blk_rq_is_passthrough(rq)) return false; if (req_op(rq) == REQ_OP_FLUSH) @@ -1049,7 +1055,7 @@ static inline unsigned int blk_rq_get_max_sectors(struct request *rq, { struct request_queue *q = rq->q; - if (unlikely(rq->cmd_type != REQ_TYPE_FS)) + if (blk_rq_is_passthrough(rq)) return q->limits.max_hw_sectors; if (!q->limits.chunk_sectors || diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index a143a67a6f33..341f9418bd68 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -114,12 +114,12 @@ extern void blk_fill_rwbs(char *rwbs, unsigned int op, int bytes); static inline sector_t blk_rq_trace_sector(struct request *rq) { - return (rq->cmd_type != REQ_TYPE_FS) ? 0 : blk_rq_pos(rq); + return blk_rq_is_passthrough(rq) ? 0 : blk_rq_pos(rq); } static inline unsigned int blk_rq_trace_nr_sectors(struct request *rq) { - return (rq->cmd_type != REQ_TYPE_FS) ? 0 : blk_rq_sectors(rq); + return blk_rq_is_passthrough(rq) ? 0 : blk_rq_sectors(rq); } #endif diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index f708f1acfc50..b379f93a2c48 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -151,7 +151,7 @@ static inline void *scsi_cmd_priv(struct scsi_cmnd *cmd) return cmd + 1; } -/* make sure not to use it with REQ_TYPE_BLOCK_PC commands */ +/* make sure not to use it with passthrough commands */ static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd) { return *(struct scsi_driver **)cmd->request->rq_disk->private_data; diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 512b34703ac3..e33050e3ea1c 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -712,7 +712,7 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq, if (likely(!bt)) return; - if (rq->cmd_type != REQ_TYPE_FS) + if (blk_rq_is_passthrough(rq)) what |= BLK_TC_ACT(BLK_TC_PC); else what |= BLK_TC_ACT(BLK_TC_FS); -- cgit v1.2.3-58-ga151 From aebf526b53aea164508730427597d45f3e06b376 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 31 Jan 2017 16:57:31 +0100 Subject: block: fold cmd_type into the REQ_OP_ space Instead of keeping two levels of indirection for requests types, fold it all into the operations. The little caveat here is that previously cmd_type only applied to struct request, while the request and bio op fields were set to plain REQ_OP_READ/WRITE even for passthrough operations. Instead this patch adds new REQ_OP_* for SCSI passthrough and driver private requests, althought it has to add two for each so that we can communicate the data in/out nature of the request. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- block/bio.c | 10 ----- block/blk-core.c | 6 +-- block/blk-flush.c | 1 - block/blk-map.c | 13 ++++--- block/blk-mq-debugfs.c | 4 +- block/bsg.c | 17 ++++----- block/scsi_ioctl.c | 9 +++-- drivers/block/cciss.c | 13 +++++-- drivers/block/floppy.c | 4 +- drivers/block/hd.c | 45 +++++++++++----------- drivers/block/mg_disk.c | 31 +++++++++------- drivers/block/nbd.c | 19 ++++++---- drivers/block/null_blk.c | 4 +- drivers/block/osdblk.c | 6 --- drivers/block/paride/pd.c | 15 +++----- drivers/block/pktcdvd.c | 2 +- drivers/block/ps3disk.c | 15 +++++--- drivers/block/rbd.c | 22 ++++++----- drivers/block/sx8.c | 4 +- drivers/block/virtio_blk.c | 61 +++++++++++++++--------------- drivers/block/xen-blkfront.c | 2 +- drivers/block/xsysace.c | 2 +- drivers/cdrom/cdrom.c | 2 +- drivers/cdrom/gdrom.c | 29 ++++++++------- drivers/ide/ide-atapi.c | 21 ++++++----- drivers/ide/ide-cd.c | 76 ++++++++++++++++++++++---------------- drivers/ide/ide-cd_ioctl.c | 3 +- drivers/ide/ide-devsets.c | 3 +- drivers/ide/ide-disk.c | 9 ++--- drivers/ide/ide-eh.c | 2 +- drivers/ide/ide-floppy.c | 19 +++++----- drivers/ide/ide-io.c | 2 +- drivers/ide/ide-ioctls.c | 6 +-- drivers/ide/ide-park.c | 6 +-- drivers/ide/ide-pm.c | 10 ++--- drivers/ide/ide-tape.c | 5 +-- drivers/ide/ide-taskfile.c | 6 +-- drivers/mtd/mtd_blkdevs.c | 13 +++---- drivers/mtd/ubi/block.c | 15 ++++---- drivers/nvme/host/core.c | 26 +++++++++---- drivers/nvme/host/rdma.c | 2 +- drivers/scsi/osd/osd_initiator.c | 3 +- drivers/scsi/osst.c | 3 +- drivers/scsi/scsi_error.c | 2 +- drivers/scsi/scsi_lib.c | 30 +++++++-------- drivers/scsi/sg.c | 3 +- drivers/scsi/sr.c | 9 +++-- drivers/scsi/st.c | 6 +-- drivers/target/target_core_pscsi.c | 3 +- fs/nfsd/blocklayout.c | 2 +- include/linux/blk_types.h | 7 ++++ include/linux/blkdev.h | 22 +++++------ include/linux/ide.h | 14 +++---- 53 files changed, 338 insertions(+), 326 deletions(-) (limited to 'drivers/nvme') diff --git a/block/bio.c b/block/bio.c index 2b375020fc49..9a2dd7145e83 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1227,9 +1227,6 @@ struct bio *bio_copy_user_iov(struct request_queue *q, if (!bio) goto out_bmd; - if (iter->type & WRITE) - bio_set_op_attrs(bio, REQ_OP_WRITE, 0); - ret = 0; if (map_data) { @@ -1394,12 +1391,6 @@ struct bio *bio_map_user_iov(struct request_queue *q, kfree(pages); - /* - * set data direction, and check if mapped pages need bouncing - */ - if (iter->type & WRITE) - bio_set_op_attrs(bio, REQ_OP_WRITE, 0); - bio_set_flag(bio, BIO_USER_MAPPED); /* @@ -1590,7 +1581,6 @@ struct bio *bio_copy_kern(struct request_queue *q, void *data, unsigned int len, bio->bi_private = data; } else { bio->bi_end_io = bio_copy_kern_endio; - bio_set_op_attrs(bio, REQ_OP_WRITE, 0); } return bio; diff --git a/block/blk-core.c b/block/blk-core.c index 44431086e4e7..3266daaa343f 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -158,8 +158,8 @@ static void req_bio_endio(struct request *rq, struct bio *bio, void blk_dump_rq_flags(struct request *rq, char *msg) { - printk(KERN_INFO "%s: dev %s: type=%x, flags=%llx\n", msg, - rq->rq_disk ? rq->rq_disk->disk_name : "?", rq->cmd_type, + printk(KERN_INFO "%s: dev %s: flags=%llx\n", msg, + rq->rq_disk ? rq->rq_disk->disk_name : "?", (unsigned long long) rq->cmd_flags); printk(KERN_INFO " sector %llu, nr/cnr %u/%u\n", @@ -1593,7 +1593,6 @@ out: void init_request_from_bio(struct request *req, struct bio *bio) { - req->cmd_type = REQ_TYPE_FS; if (bio->bi_opf & REQ_RAHEAD) req->cmd_flags |= REQ_FAILFAST_MASK; @@ -2983,7 +2982,6 @@ EXPORT_SYMBOL_GPL(blk_rq_unprep_clone); static void __blk_rq_prep_clone(struct request *dst, struct request *src) { dst->cpu = src->cpu; - dst->cmd_type = src->cmd_type; dst->__sector = blk_rq_pos(src); dst->__data_len = blk_rq_bytes(src); dst->nr_phys_segments = src->nr_phys_segments; diff --git a/block/blk-flush.c b/block/blk-flush.c index 0a0358e48b76..968162579234 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -327,7 +327,6 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq) blk_mq_tag_set_rq(hctx, first_rq->tag, flush_rq); } - flush_rq->cmd_type = REQ_TYPE_FS; flush_rq->cmd_flags = REQ_OP_FLUSH | REQ_PREFLUSH; flush_rq->rq_flags |= RQF_FLUSH_SEQ; flush_rq->rq_disk = first_rq->rq_disk; diff --git a/block/blk-map.c b/block/blk-map.c index 0acb6640ead7..2f18c2a0be1b 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -16,8 +16,6 @@ int blk_rq_append_bio(struct request *rq, struct bio *bio) { if (!rq->bio) { - rq->cmd_flags &= REQ_OP_MASK; - rq->cmd_flags |= (bio->bi_opf & REQ_OP_MASK); blk_rq_bio_prep(rq->q, rq, bio); } else { if (!ll_back_merge_fn(rq->q, rq, bio)) @@ -62,6 +60,9 @@ static int __blk_rq_map_user_iov(struct request *rq, if (IS_ERR(bio)) return PTR_ERR(bio); + bio->bi_opf &= ~REQ_OP_MASK; + bio->bi_opf |= req_op(rq); + if (map_data && map_data->null_mapped) bio_set_flag(bio, BIO_NULL_MAPPED); @@ -90,7 +91,7 @@ static int __blk_rq_map_user_iov(struct request *rq, } /** - * blk_rq_map_user_iov - map user data to a request, for REQ_TYPE_BLOCK_PC usage + * blk_rq_map_user_iov - map user data to a request, for passthrough requests * @q: request queue where request should be inserted * @rq: request to map data to * @map_data: pointer to the rq_map_data holding pages (if necessary) @@ -199,7 +200,7 @@ int blk_rq_unmap_user(struct bio *bio) EXPORT_SYMBOL(blk_rq_unmap_user); /** - * blk_rq_map_kern - map kernel data to a request, for REQ_TYPE_BLOCK_PC usage + * blk_rq_map_kern - map kernel data to a request, for passthrough requests * @q: request queue where request should be inserted * @rq: request to fill * @kbuf: the kernel buffer @@ -234,8 +235,8 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf, if (IS_ERR(bio)) return PTR_ERR(bio); - if (!reading) - bio_set_op_attrs(bio, REQ_OP_WRITE, 0); + bio->bi_opf &= ~REQ_OP_MASK; + bio->bi_opf |= req_op(rq); if (do_copy) rq->rq_flags |= RQF_COPY_USER; diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 5cd2b435a9f5..1e2a4a2ff623 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -88,8 +88,8 @@ static int blk_mq_debugfs_rq_show(struct seq_file *m, void *v) { struct request *rq = list_entry_rq(v); - seq_printf(m, "%p {.cmd_type=%u, .cmd_flags=0x%x, .rq_flags=0x%x, .tag=%d, .internal_tag=%d}\n", - rq, rq->cmd_type, rq->cmd_flags, (unsigned int)rq->rq_flags, + seq_printf(m, "%p {.cmd_flags=0x%x, .rq_flags=0x%x, .tag=%d, .internal_tag=%d}\n", + rq, rq->cmd_flags, (unsigned int)rq->rq_flags, rq->tag, rq->internal_tag); return 0; } diff --git a/block/bsg.c b/block/bsg.c index e34c3320956c..a9a8b8e0446f 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -177,7 +177,7 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq, * Check if sg_io_v4 from user is allowed and valid */ static int -bsg_validate_sgv4_hdr(struct sg_io_v4 *hdr, int *rw) +bsg_validate_sgv4_hdr(struct sg_io_v4 *hdr, int *op) { int ret = 0; @@ -198,7 +198,7 @@ bsg_validate_sgv4_hdr(struct sg_io_v4 *hdr, int *rw) ret = -EINVAL; } - *rw = hdr->dout_xfer_len ? WRITE : READ; + *op = hdr->dout_xfer_len ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN; return ret; } @@ -210,8 +210,8 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm) { struct request_queue *q = bd->queue; struct request *rq, *next_rq = NULL; - int ret, rw; - unsigned int dxfer_len; + int ret; + unsigned int op, dxfer_len; void __user *dxferp = NULL; struct bsg_class_device *bcd = &q->bsg_dev; @@ -226,14 +226,14 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm) hdr->dout_xfer_len, (unsigned long long) hdr->din_xferp, hdr->din_xfer_len); - ret = bsg_validate_sgv4_hdr(hdr, &rw); + ret = bsg_validate_sgv4_hdr(hdr, &op); if (ret) return ERR_PTR(ret); /* * map scatter-gather elements separately and string them to request */ - rq = blk_get_request(q, rw, GFP_KERNEL); + rq = blk_get_request(q, op, GFP_KERNEL); if (IS_ERR(rq)) return rq; scsi_req_init(rq); @@ -242,20 +242,19 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm) if (ret) goto out; - if (rw == WRITE && hdr->din_xfer_len) { + if (op == REQ_OP_SCSI_OUT && hdr->din_xfer_len) { if (!test_bit(QUEUE_FLAG_BIDI, &q->queue_flags)) { ret = -EOPNOTSUPP; goto out; } - next_rq = blk_get_request(q, READ, GFP_KERNEL); + next_rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(next_rq)) { ret = PTR_ERR(next_rq); next_rq = NULL; goto out; } rq->next_rq = next_rq; - next_rq->cmd_type = rq->cmd_type; dxferp = (void __user *)(unsigned long)hdr->din_xferp; ret = blk_rq_map_user(q, next_rq, NULL, dxferp, diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 7edf44f25e08..2a2fc768b27a 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -321,7 +321,8 @@ static int sg_io(struct request_queue *q, struct gendisk *bd_disk, at_head = 1; ret = -ENOMEM; - rq = blk_get_request(q, writing ? WRITE : READ, GFP_KERNEL); + rq = blk_get_request(q, writing ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, + GFP_KERNEL); if (IS_ERR(rq)) return PTR_ERR(rq); req = scsi_req(rq); @@ -448,7 +449,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, } - rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_RECLAIM); + rq = blk_get_request(q, in_len ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, + __GFP_RECLAIM); if (IS_ERR(rq)) { err = PTR_ERR(rq); goto error_free_buffer; @@ -537,7 +539,7 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk, struct request *rq; int err; - rq = blk_get_request(q, WRITE, __GFP_RECLAIM); + rq = blk_get_request(q, REQ_OP_SCSI_OUT, __GFP_RECLAIM); if (IS_ERR(rq)) return PTR_ERR(rq); scsi_req_init(rq); @@ -745,7 +747,6 @@ void scsi_req_init(struct request *rq) { struct scsi_request *req = scsi_req(rq); - rq->cmd_type = REQ_TYPE_BLOCK_PC; memset(req->__cmd, 0, sizeof(req->__cmd)); req->cmd = req->__cmd; req->cmd_len = BLK_MAX_CDB; diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 53dc2971a3ba..f21c2f0c5ccd 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -3394,7 +3394,9 @@ static void do_cciss_request(struct request_queue *q) c->Header.SGList = h->max_cmd_sgentries; set_performant_mode(h, c); - if (likely(creq->cmd_type == REQ_TYPE_FS)) { + switch (req_op(creq)) { + case REQ_OP_READ: + case REQ_OP_WRITE: if(h->cciss_read == CCISS_READ_10) { c->Request.CDB[1] = 0; c->Request.CDB[2] = (start_blk >> 24) & 0xff; /* MSB */ @@ -3424,13 +3426,16 @@ static void do_cciss_request(struct request_queue *q) c->Request.CDB[13]= blk_rq_sectors(creq) & 0xff; c->Request.CDB[14] = c->Request.CDB[15] = 0; } - } else if (creq->cmd_type == REQ_TYPE_BLOCK_PC) { + break; + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: c->Request.CDBLen = scsi_req(creq)->cmd_len; memcpy(c->Request.CDB, scsi_req(creq)->cmd, BLK_MAX_CDB); scsi_req(creq)->sense = c->err_info->SenseInfo; - } else { + break; + default: dev_warn(&h->pdev->dev, "bad request type %d\n", - creq->cmd_type); + creq->cmd_flags); BUG(); } diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 184887af4b9f..45b4384f650c 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -2900,8 +2900,8 @@ static void do_fd_request(struct request_queue *q) return; if (WARN(atomic_read(&usage_count) == 0, - "warning: usage count=0, current_req=%p sect=%ld type=%x flags=%llx\n", - current_req, (long)blk_rq_pos(current_req), current_req->cmd_type, + "warning: usage count=0, current_req=%p sect=%ld flags=%llx\n", + current_req, (long)blk_rq_pos(current_req), (unsigned long long) current_req->cmd_flags)) return; diff --git a/drivers/block/hd.c b/drivers/block/hd.c index a9b48ed7a3cd..6043648da1e8 100644 --- a/drivers/block/hd.c +++ b/drivers/block/hd.c @@ -626,30 +626,29 @@ repeat: req_data_dir(req) == READ ? "read" : "writ", cyl, head, sec, nsect, bio_data(req->bio)); #endif - if (req->cmd_type == REQ_TYPE_FS) { - switch (rq_data_dir(req)) { - case READ: - hd_out(disk, nsect, sec, head, cyl, ATA_CMD_PIO_READ, - &read_intr); - if (reset) - goto repeat; - break; - case WRITE: - hd_out(disk, nsect, sec, head, cyl, ATA_CMD_PIO_WRITE, - &write_intr); - if (reset) - goto repeat; - if (wait_DRQ()) { - bad_rw_intr(); - goto repeat; - } - outsw(HD_DATA, bio_data(req->bio), 256); - break; - default: - printk("unknown hd-command\n"); - hd_end_request_cur(-EIO); - break; + + switch (req_op(req)) { + case REQ_OP_READ: + hd_out(disk, nsect, sec, head, cyl, ATA_CMD_PIO_READ, + &read_intr); + if (reset) + goto repeat; + break; + case REQ_OP_WRITE: + hd_out(disk, nsect, sec, head, cyl, ATA_CMD_PIO_WRITE, + &write_intr); + if (reset) + goto repeat; + if (wait_DRQ()) { + bad_rw_intr(); + goto repeat; } + outsw(HD_DATA, bio_data(req->bio), 256); + break; + default: + printk("unknown hd-command\n"); + hd_end_request_cur(-EIO); + break; } } diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c index e937fcf71769..286f276f586e 100644 --- a/drivers/block/mg_disk.c +++ b/drivers/block/mg_disk.c @@ -670,15 +670,17 @@ static void mg_request_poll(struct request_queue *q) break; } - if (unlikely(host->req->cmd_type != REQ_TYPE_FS)) { - mg_end_request_cur(host, -EIO); - continue; - } - - if (rq_data_dir(host->req) == READ) + switch (req_op(host->req)) { + case REQ_OP_READ: mg_read(host->req); - else + break; + case REQ_OP_WRITE: mg_write(host->req); + break; + default: + mg_end_request_cur(host, -EIO); + break; + } } } @@ -687,13 +689,15 @@ static unsigned int mg_issue_req(struct request *req, unsigned int sect_num, unsigned int sect_cnt) { - if (rq_data_dir(req) == READ) { + switch (req_op(host->req)) { + case REQ_OP_READ: if (mg_out(host, sect_num, sect_cnt, MG_CMD_RD, &mg_read_intr) != MG_ERR_NONE) { mg_bad_rw_intr(host); return host->error; } - } else { + break; + case REQ_OP_WRITE: /* TODO : handler */ outb(ATA_NIEN, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); if (mg_out(host, sect_num, sect_cnt, MG_CMD_WR, &mg_write_intr) @@ -712,6 +716,10 @@ static unsigned int mg_issue_req(struct request *req, mod_timer(&host->timer, jiffies + 3 * HZ); outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND); + break; + default: + mg_end_request_cur(host, -EIO); + break; } return MG_ERR_NONE; } @@ -753,11 +761,6 @@ static void mg_request(struct request_queue *q) continue; } - if (unlikely(req->cmd_type != REQ_TYPE_FS)) { - mg_end_request_cur(host, -EIO); - continue; - } - if (!mg_issue_req(req, host, sect_num, sect_cnt)) return; } diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 8bce1c7c18d5..58296e4427b0 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -271,17 +271,22 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index) u32 type; u32 tag = blk_mq_unique_tag(req); - if (req->cmd_type != REQ_TYPE_FS) - return -EIO; - - if (req_op(req) == REQ_OP_DISCARD) + switch (req_op(req)) { + case REQ_OP_DISCARD: type = NBD_CMD_TRIM; - else if (req_op(req) == REQ_OP_FLUSH) + break; + case REQ_OP_FLUSH: type = NBD_CMD_FLUSH; - else if (rq_data_dir(req) == WRITE) + break; + case REQ_OP_WRITE: type = NBD_CMD_WRITE; - else + break; + case REQ_OP_READ: type = NBD_CMD_READ; + break; + default: + return -EIO; + } if (rq_data_dir(req) == WRITE && (nbd->flags & NBD_FLAG_READ_ONLY)) { diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index c0e14e54909b..4335b84a565b 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -431,11 +431,11 @@ static int null_lnvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd) struct request *rq; struct bio *bio = rqd->bio; - rq = blk_mq_alloc_request(q, bio_data_dir(bio), 0); + rq = blk_mq_alloc_request(q, + op_is_write(bio_op(bio)) ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); if (IS_ERR(rq)) return -ENOMEM; - rq->cmd_type = REQ_TYPE_DRV_PRIV; rq->__sector = bio->bi_iter.bi_sector; rq->ioprio = bio_prio(bio); diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c index 92900f5f0b47..8127b8201a01 100644 --- a/drivers/block/osdblk.c +++ b/drivers/block/osdblk.c @@ -308,12 +308,6 @@ static void osdblk_rq_fn(struct request_queue *q) if (!rq) break; - /* filter out block requests we don't understand */ - if (rq->cmd_type != REQ_TYPE_FS) { - blk_end_request_all(rq, 0); - continue; - } - /* deduce our operation (read, write, flush) */ /* I wish the block layer simplified cmd_type/cmd_flags/cmd[] * into a clearly defined set of RPC commands: diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index c3ed2fc72daa..644ba0888bd4 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -439,18 +439,16 @@ static int pd_retries = 0; /* i/o error retry count */ static int pd_block; /* address of next requested block */ static int pd_count; /* number of blocks still to do */ static int pd_run; /* sectors in current cluster */ -static int pd_cmd; /* current command READ/WRITE */ static char *pd_buf; /* buffer for request in progress */ static enum action do_pd_io_start(void) { - if (pd_req->cmd_type == REQ_TYPE_DRV_PRIV) { + switch (req_op(pd_req)) { + case REQ_OP_DRV_IN: phase = pd_special; return pd_special(); - } - - pd_cmd = rq_data_dir(pd_req); - if (pd_cmd == READ || pd_cmd == WRITE) { + case REQ_OP_READ: + case REQ_OP_WRITE: pd_block = blk_rq_pos(pd_req); pd_count = blk_rq_cur_sectors(pd_req); if (pd_block + pd_count > get_capacity(pd_req->rq_disk)) @@ -458,7 +456,7 @@ static enum action do_pd_io_start(void) pd_run = blk_rq_sectors(pd_req); pd_buf = bio_data(pd_req->bio); pd_retries = 0; - if (pd_cmd == READ) + if (req_op(pd_req) == REQ_OP_READ) return do_pd_read_start(); else return do_pd_write_start(); @@ -723,11 +721,10 @@ static int pd_special_command(struct pd_unit *disk, struct request *rq; int err = 0; - rq = blk_get_request(disk->gd->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(disk->gd->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); if (IS_ERR(rq)) return PTR_ERR(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; rq->special = func; err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 918a92ccd0c0..f4bd95943dc2 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -704,7 +704,7 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command * int ret = 0; rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ? - WRITE : READ, __GFP_RECLAIM); + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, __GFP_RECLAIM); if (IS_ERR(rq)) return PTR_ERR(rq); scsi_req_init(rq); diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index 76f33c84ce3d..a809e3e9feb8 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -196,16 +196,19 @@ static void ps3disk_do_request(struct ps3_storage_device *dev, dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__); while ((req = blk_fetch_request(q))) { - if (req_op(req) == REQ_OP_FLUSH) { + switch (req_op(req)) { + case REQ_OP_FLUSH: if (ps3disk_submit_flush_request(dev, req)) - break; - } else if (req->cmd_type == REQ_TYPE_FS) { + return; + break; + case REQ_OP_READ: + case REQ_OP_WRITE: if (ps3disk_submit_request_sg(dev, req)) - break; - } else { + return; + break; + default: blk_dump_rq_flags(req, DEVICE_NAME " bad request"); __blk_end_request_all(req, -EIO); - continue; } } } diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 36d2b9f4e836..4d78cf605b21 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4099,19 +4099,21 @@ static void rbd_queue_workfn(struct work_struct *work) bool must_be_locked; int result; - if (rq->cmd_type != REQ_TYPE_FS) { - dout("%s: non-fs request type %d\n", __func__, - (int) rq->cmd_type); - result = -EIO; - goto err; - } - - if (req_op(rq) == REQ_OP_DISCARD) + switch (req_op(rq)) { + case REQ_OP_DISCARD: op_type = OBJ_OP_DISCARD; - else if (req_op(rq) == REQ_OP_WRITE) + break; + case REQ_OP_WRITE: op_type = OBJ_OP_WRITE; - else + break; + case REQ_OP_READ: op_type = OBJ_OP_READ; + break; + default: + dout("%s: non-fs request type %d\n", __func__, req_op(rq)); + result = -EIO; + goto err; + } /* Ignore/skip any zero-length requests */ diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c index 0e93ad7b8511..c8e072caf56f 100644 --- a/drivers/block/sx8.c +++ b/drivers/block/sx8.c @@ -567,7 +567,7 @@ static struct carm_request *carm_get_special(struct carm_host *host) if (!crq) return NULL; - rq = blk_get_request(host->oob_q, WRITE /* bogus */, GFP_KERNEL); + rq = blk_get_request(host->oob_q, REQ_OP_DRV_OUT, GFP_KERNEL); if (IS_ERR(rq)) { spin_lock_irqsave(&host->lock, flags); carm_put_request(host, crq); @@ -620,7 +620,6 @@ static int carm_array_info (struct carm_host *host, unsigned int array_idx) spin_unlock_irq(&host->lock); DPRINTK("blk_execute_rq_nowait, tag == %u\n", idx); - crq->rq->cmd_type = REQ_TYPE_DRV_PRIV; crq->rq->special = crq; blk_execute_rq_nowait(host->oob_q, NULL, crq->rq, true, NULL); @@ -661,7 +660,6 @@ static int carm_send_special (struct carm_host *host, carm_sspc_t func) crq->msg_bucket = (u32) rc; DPRINTK("blk_execute_rq_nowait, tag == %u\n", idx); - crq->rq->cmd_type = REQ_TYPE_DRV_PRIV; crq->rq->special = crq; blk_execute_rq_nowait(host->oob_q, NULL, crq->rq, true, NULL); diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index d9491bdd3ad3..a363170e45b1 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -175,11 +175,12 @@ static inline void virtblk_request_done(struct request *req) struct virtblk_req *vbr = blk_mq_rq_to_pdu(req); int error = virtblk_result(vbr); - switch (req->cmd_type) { - case REQ_TYPE_BLOCK_PC: + switch (req_op(req)) { + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: virtblk_scsi_reques_done(req); break; - case REQ_TYPE_DRV_PRIV: + case REQ_OP_DRV_IN: req->errors = (error != 0); break; } @@ -226,36 +227,35 @@ static int virtio_queue_rq(struct blk_mq_hw_ctx *hctx, int qid = hctx->queue_num; int err; bool notify = false; + u32 type; BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems); - if (req_op(req) == REQ_OP_FLUSH) { - vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, VIRTIO_BLK_T_FLUSH); - vbr->out_hdr.sector = 0; - vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(req)); - } else { - switch (req->cmd_type) { - case REQ_TYPE_FS: - vbr->out_hdr.type = 0; - vbr->out_hdr.sector = cpu_to_virtio64(vblk->vdev, blk_rq_pos(req)); - vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(req)); - break; - case REQ_TYPE_BLOCK_PC: - vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, VIRTIO_BLK_T_SCSI_CMD); - vbr->out_hdr.sector = 0; - vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(req)); - break; - case REQ_TYPE_DRV_PRIV: - vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, VIRTIO_BLK_T_GET_ID); - vbr->out_hdr.sector = 0; - vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(req)); - break; - default: - /* We don't put anything else in the queue. */ - BUG(); - } + switch (req_op(req)) { + case REQ_OP_READ: + case REQ_OP_WRITE: + type = 0; + break; + case REQ_OP_FLUSH: + type = VIRTIO_BLK_T_FLUSH; + break; + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: + type = VIRTIO_BLK_T_SCSI_CMD; + break; + case REQ_OP_DRV_IN: + type = VIRTIO_BLK_T_GET_ID; + break; + default: + WARN_ON_ONCE(1); + return BLK_MQ_RQ_QUEUE_ERROR; } + vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, type); + vbr->out_hdr.sector = type ? + 0 : cpu_to_virtio64(vblk->vdev, blk_rq_pos(req)); + vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(req)); + blk_mq_start_request(req); num = blk_rq_map_sg(hctx->queue, req, vbr->sg); @@ -267,7 +267,7 @@ static int virtio_queue_rq(struct blk_mq_hw_ctx *hctx, } spin_lock_irqsave(&vblk->vqs[qid].lock, flags); - if (req->cmd_type == REQ_TYPE_BLOCK_PC) + if (req_op(req) == REQ_OP_SCSI_IN || req_op(req) == REQ_OP_SCSI_OUT) err = virtblk_add_req_scsi(vblk->vqs[qid].vq, vbr, vbr->sg, num); else err = virtblk_add_req(vblk->vqs[qid].vq, vbr, vbr->sg, num); @@ -300,10 +300,9 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str) struct request *req; int err; - req = blk_get_request(q, READ, GFP_KERNEL); + req = blk_get_request(q, REQ_OP_DRV_IN, GFP_KERNEL); if (IS_ERR(req)) return PTR_ERR(req); - req->cmd_type = REQ_TYPE_DRV_PRIV; err = blk_rq_map_kern(q, req, id_str, VIRTIO_BLK_ID_BYTES, GFP_KERNEL); if (err) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index b2bdfa81f929..9a8cb226cb3a 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -865,7 +865,7 @@ static inline void flush_requests(struct blkfront_ring_info *rinfo) static inline bool blkif_request_flush_invalid(struct request *req, struct blkfront_info *info) { - return ((req->cmd_type != REQ_TYPE_FS) || + return (blk_rq_is_passthrough(req) || ((req_op(req) == REQ_OP_FLUSH) && !info->feature_flush) || ((req->cmd_flags & REQ_FUA) && diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index c4328d9d9981..757dce2147e0 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -468,7 +468,7 @@ static struct request *ace_get_next_request(struct request_queue *q) struct request *req; while ((req = blk_peek_request(q)) != NULL) { - if (req->cmd_type == REQ_TYPE_FS) + if (!blk_rq_is_passthrough(req)) break; blk_start_request(req); __blk_end_request_all(req, -EIO); diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 36f5237a8a69..8f496b4f3dd1 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2191,7 +2191,7 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, len = nr * CD_FRAMESIZE_RAW; - rq = blk_get_request(q, READ, GFP_KERNEL); + rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(rq)) { ret = PTR_ERR(rq); break; diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index 584bc3126403..b6f1a5d95bc5 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -659,23 +659,24 @@ static void gdrom_request(struct request_queue *rq) struct request *req; while ((req = blk_fetch_request(rq)) != NULL) { - if (req->cmd_type != REQ_TYPE_FS) { - printk(KERN_DEBUG "gdrom: Non-fs request ignored\n"); - __blk_end_request_all(req, -EIO); - continue; - } - if (rq_data_dir(req) != READ) { + switch (req_op(req)) { + case REQ_OP_READ: + /* + * Add to list of deferred work and then schedule + * workqueue. + */ + list_add_tail(&req->queuelist, &gdrom_deferred); + schedule_work(&work); + break; + case REQ_OP_WRITE: pr_notice("Read only device - write request ignored\n"); __blk_end_request_all(req, -EIO); - continue; + break; + default: + printk(KERN_DEBUG "gdrom: Non-fs request ignored\n"); + __blk_end_request_all(req, -EIO); + break; } - - /* - * Add to list of deferred work and then schedule - * workqueue. - */ - list_add_tail(&req->queuelist, &gdrom_deferred); - schedule_work(&work); } } diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index a8c650e8c92e..feb30061123b 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -92,9 +92,8 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, struct request *rq; int error; - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; rq->special = (char *)pc; @@ -212,7 +211,7 @@ void ide_prep_sense(ide_drive_t *drive, struct request *rq) } sense_rq->rq_disk = rq->rq_disk; - sense_rq->cmd_type = REQ_TYPE_DRV_PRIV; + sense_rq->cmd_flags = REQ_OP_DRV_IN; ide_req(sense_rq)->type = ATA_PRIV_SENSE; sense_rq->rq_flags |= RQF_PREEMPT; @@ -312,19 +311,21 @@ EXPORT_SYMBOL_GPL(ide_cd_expiry); int ide_cd_get_xferlen(struct request *rq) { - switch (rq->cmd_type) { - case REQ_TYPE_FS: + switch (req_op(rq)) { + default: return 32768; - case REQ_TYPE_BLOCK_PC: + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: return blk_rq_bytes(rq); - case REQ_TYPE_DRV_PRIV: + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: switch (ide_req(rq)->type) { case ATA_PRIV_PC: case ATA_PRIV_SENSE: return blk_rq_bytes(rq); + default: + return 0; } - default: - return 0; } } EXPORT_SYMBOL_GPL(ide_cd_get_xferlen); @@ -491,7 +492,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) error = 0; } else { - if (rq->cmd_type != REQ_TYPE_FS && uptodate <= 0) { + if (blk_rq_is_passthrough(rq) && uptodate <= 0) { if (rq->errors == 0) rq->errors = -EIO; } diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 207af7816544..dc039d150357 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -176,7 +176,7 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive, if (!sense->valid) break; if (failed_command == NULL || - failed_command->cmd_type != REQ_TYPE_FS) + blk_rq_is_passthrough(failed_command)) break; sector = (sense->information[0] << 24) | (sense->information[1] << 16) | @@ -293,7 +293,7 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat) } /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */ - if (rq->cmd_type == REQ_TYPE_BLOCK_PC && !rq->errors) + if (blk_rq_is_scsi(rq) && !rq->errors) rq->errors = SAM_STAT_CHECK_CONDITION; if (blk_noretry_request(rq)) @@ -301,13 +301,13 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat) switch (sense_key) { case NOT_READY: - if (rq->cmd_type == REQ_TYPE_FS && rq_data_dir(rq) == WRITE) { + if (req_op(rq) == REQ_OP_WRITE) { if (ide_cd_breathe(drive, rq)) return 1; } else { cdrom_saw_media_change(drive); - if (rq->cmd_type == REQ_TYPE_FS && + if (!blk_rq_is_passthrough(rq) && !(rq->rq_flags & RQF_QUIET)) printk(KERN_ERR PFX "%s: tray open\n", drive->name); @@ -317,7 +317,7 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat) case UNIT_ATTENTION: cdrom_saw_media_change(drive); - if (rq->cmd_type != REQ_TYPE_FS) + if (blk_rq_is_passthrough(rq)) return 0; /* @@ -365,7 +365,7 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat) do_end_request = 1; break; default: - if (rq->cmd_type != REQ_TYPE_FS) + if (blk_rq_is_passthrough(rq)) break; if (err & ~ATA_ABORTED) { /* go to the default handler for other errors */ @@ -376,7 +376,7 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat) do_end_request = 1; } - if (rq->cmd_type != REQ_TYPE_FS) { + if (blk_rq_is_passthrough(rq)) { rq->rq_flags |= RQF_FAILED; do_end_request = 1; } @@ -435,10 +435,10 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, int error; bool delay = false; - rq = blk_get_request(drive->queue, write, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, + write ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); memcpy(scsi_req(rq)->cmd, cmd, BLK_MAX_CDB); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_PC; rq->rq_flags |= rq_flags; rq->timeout = timeout; @@ -564,7 +564,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) ide_read_bcount_and_ireason(drive, &len, &ireason); - thislen = (rq->cmd_type == REQ_TYPE_FS) ? len : cmd->nleft; + thislen = !blk_rq_is_passthrough(rq) ? len : cmd->nleft; if (thislen > len) thislen = len; @@ -573,7 +573,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) /* If DRQ is clear, the command has completed. */ if ((stat & ATA_DRQ) == 0) { - if (rq->cmd_type == REQ_TYPE_FS) { + switch (req_op(rq)) { + default: /* * If we're not done reading/writing, complain. * Otherwise, complete the command normally. @@ -587,7 +588,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) rq->rq_flags |= RQF_FAILED; uptodate = 0; } - } else if (rq->cmd_type != REQ_TYPE_BLOCK_PC) { + goto out_end; + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: ide_cd_request_sense_fixup(drive, cmd); uptodate = cmd->nleft ? 0 : 1; @@ -603,8 +606,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) if (!uptodate) rq->rq_flags |= RQF_FAILED; + goto out_end; + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: + goto out_end; } - goto out_end; } rc = ide_check_ireason(drive, rq, len, ireason, write); @@ -636,7 +642,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) /* pad, if necessary */ if (len > 0) { - if (rq->cmd_type != REQ_TYPE_FS || write == 0) + if (blk_rq_is_passthrough(rq) || write == 0) ide_pad_transfer(drive, write, len); else { printk(KERN_ERR PFX "%s: confused, missing data\n", @@ -645,12 +651,18 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) } } - if (rq->cmd_type == REQ_TYPE_BLOCK_PC) { + switch (req_op(rq)) { + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: timeout = rq->timeout; - } else { + break; + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: + expiry = ide_cd_expiry; + /*FALLTHRU*/ + default: timeout = ATAPI_WAIT_PC; - if (rq->cmd_type != REQ_TYPE_FS) - expiry = ide_cd_expiry; + break; } hwif->expiry = expiry; @@ -658,7 +670,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) return ide_started; out_end: - if (rq->cmd_type == REQ_TYPE_BLOCK_PC && rc == 0) { + if (blk_rq_is_scsi(rq) && rc == 0) { scsi_req(rq)->resid_len = 0; blk_end_request_all(rq, 0); hwif->rq = NULL; @@ -666,7 +678,7 @@ out_end: if (sense && uptodate) ide_cd_complete_failed_rq(drive, rq); - if (rq->cmd_type == REQ_TYPE_FS) { + if (!blk_rq_is_passthrough(rq)) { if (cmd->nleft == 0) uptodate = 1; } else { @@ -679,7 +691,7 @@ out_end: return ide_stopped; /* make sure it's fully ended */ - if (rq->cmd_type != REQ_TYPE_FS) { + if (blk_rq_is_passthrough(rq)) { scsi_req(rq)->resid_len -= cmd->nbytes - cmd->nleft; if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) scsi_req(rq)->resid_len += cmd->last_xfer_len; @@ -739,7 +751,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", rq->cmd[0], rq->cmd_type); - if (rq->cmd_type == REQ_TYPE_BLOCK_PC) + if (blk_rq_is_scsi(rq)) rq->rq_flags |= RQF_QUIET; else rq->rq_flags &= ~RQF_FAILED; @@ -781,18 +793,20 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, if (drive->debug_mask & IDE_DBG_RQ) blk_dump_rq_flags(rq, "ide_cd_do_request"); - switch (rq->cmd_type) { - case REQ_TYPE_FS: + switch (req_op(rq)) { + default: if (cdrom_start_rw(drive, rq) == ide_stopped) goto out_end; break; - case REQ_TYPE_BLOCK_PC: + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: handle_pc: if (!rq->timeout) rq->timeout = ATAPI_WAIT_PC; cdrom_do_block_pc(drive, rq); break; - case REQ_TYPE_DRV_PRIV: + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: switch (ide_req(rq)->type) { case ATA_PRIV_MISC: /* right now this can only be a reset... */ @@ -801,9 +815,9 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, case ATA_PRIV_SENSE: case ATA_PRIV_PC: goto handle_pc; + default: + BUG(); } - default: - BUG(); } /* prepare sense request for this command */ @@ -816,7 +830,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, cmd.rq = rq; - if (rq->cmd_type == REQ_TYPE_FS || blk_rq_bytes(rq)) { + if (!blk_rq_is_passthrough(rq) || blk_rq_bytes(rq)) { ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); ide_map_sg(drive, &cmd); } @@ -1373,9 +1387,9 @@ static int ide_cdrom_prep_pc(struct request *rq) static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) { - if (rq->cmd_type == REQ_TYPE_FS) + if (!blk_rq_is_passthrough(rq)) return ide_cdrom_prep_fs(q, rq); - else if (rq->cmd_type == REQ_TYPE_BLOCK_PC) + else if (blk_rq_is_scsi(rq)) return ide_cdrom_prep_pc(rq); return 0; diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 3f03eed0ff78..9fcefbc8425e 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -303,9 +303,8 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) struct request *rq; int ret; - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; rq->rq_flags = RQF_QUIET; ret = blk_execute_rq(drive->queue, cd->disk, rq, 0); diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c index c040b9de2b4e..a45dda5386e4 100644 --- a/drivers/ide/ide-devsets.c +++ b/drivers/ide/ide-devsets.c @@ -165,9 +165,8 @@ int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting, if (!(setting->flags & DS_SYNC)) return setting->set(drive, arg); - rq = blk_get_request(q, READ, __GFP_RECLAIM); + rq = blk_get_request(q, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd_len = 5; scsi_req(rq)->cmd[0] = REQ_DEVSET_EXEC; diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 69cf71729841..186159715b71 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -184,7 +184,7 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq, ide_hwif_t *hwif = drive->hwif; BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED); - BUG_ON(rq->cmd_type != REQ_TYPE_FS); + BUG_ON(blk_rq_is_passthrough(rq)); ledtrig_disk_activity(); @@ -452,8 +452,8 @@ static int idedisk_prep_fn(struct request_queue *q, struct request *rq) cmd->valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; cmd->tf_flags = IDE_TFLAG_DYN; cmd->protocol = ATA_PROT_NODATA; - - rq->cmd_type = REQ_TYPE_DRV_PRIV; + rq->cmd_flags &= ~REQ_OP_MASK; + rq->cmd_flags |= REQ_OP_DRV_OUT; ide_req(rq)->type = ATA_PRIV_TASKFILE; rq->special = cmd; cmd->rq = rq; @@ -478,9 +478,8 @@ static int set_multcount(ide_drive_t *drive, int arg) if (drive->special_flags & IDE_SFLAG_SET_MULTMODE) return -EBUSY; - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_TASKFILE; drive->mult_req = arg; diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c index 1e4b1476e559..cf3af6840368 100644 --- a/drivers/ide/ide-eh.c +++ b/drivers/ide/ide-eh.c @@ -123,7 +123,7 @@ ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat) return ide_stopped; /* retry only "normal" I/O: */ - if (rq->cmd_type != REQ_TYPE_FS) { + if (blk_rq_is_passthrough(rq)) { if (ata_taskfile_request(rq)) { struct ide_cmd *cmd = rq->special; diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 24c6d363b3a4..a69e8013f1df 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -72,7 +72,7 @@ static int ide_floppy_callback(ide_drive_t *drive, int dsc) drive->failed_pc = NULL; if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || - rq->cmd_type == REQ_TYPE_BLOCK_PC) + (req_op(rq) == REQ_OP_SCSI_IN || req_op(rq) == REQ_OP_SCSI_OUT)) uptodate = 1; /* FIXME */ else if (pc->c[0] == GPCMD_REQUEST_SENSE) { @@ -254,8 +254,8 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, goto out_end; } - switch (rq->cmd_type) { - case REQ_TYPE_FS: + switch (req_op(rq)) { + default: if (((long)blk_rq_pos(rq) % floppy->bs_factor) || (blk_rq_sectors(rq) % floppy->bs_factor)) { printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", @@ -265,11 +265,13 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, pc = &floppy->queued_pc; idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); break; - case REQ_TYPE_BLOCK_PC: + case REQ_OP_SCSI_IN: + case REQ_OP_SCSI_OUT: pc = &floppy->queued_pc; idefloppy_blockpc_cmd(floppy, pc, rq); break; - case REQ_TYPE_DRV_PRIV: + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: switch (ide_req(rq)->type) { case ATA_PRIV_MISC: case ATA_PRIV_SENSE: @@ -278,9 +280,6 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, default: BUG(); } - break; - default: - BUG(); } ide_prep_sense(drive, rq); @@ -292,7 +291,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, cmd.rq = rq; - if (rq->cmd_type == REQ_TYPE_FS || blk_rq_bytes(rq)) { + if (!blk_rq_is_passthrough(rq) || blk_rq_bytes(rq)) { ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); ide_map_sg(drive, &cmd); } @@ -302,7 +301,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, return ide_floppy_issue_pc(drive, &cmd, pc); out_end: drive->failed_pc = NULL; - if (rq->cmd_type != REQ_TYPE_FS && rq->errors == 0) + if (blk_rq_is_passthrough(rq) && rq->errors == 0) rq->errors = -EIO; ide_complete_rq(drive, -EIO, blk_rq_bytes(rq)); return ide_stopped; diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 6735c92b8da7..043b1fb963cb 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -145,7 +145,7 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq) } else { if (media == ide_tape) rq->errors = IDE_DRV_ERROR_GENERAL; - else if (rq->cmd_type != REQ_TYPE_FS && rq->errors == 0) + else if (blk_rq_is_passthrough(rq) && rq->errors == 0) rq->errors = -EIO; } diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c index fc19e842deef..248a3e0ceb46 100644 --- a/drivers/ide/ide-ioctls.c +++ b/drivers/ide/ide-ioctls.c @@ -125,9 +125,8 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg) if (NULL == (void *) arg) { struct request *rq; - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_TASKFILE; err = blk_execute_rq(drive->queue, NULL, rq, 0); blk_put_request(rq); @@ -223,9 +222,8 @@ static int generic_drive_reset(ide_drive_t *drive) struct request *rq; int ret = 0; - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd_len = 1; scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET; diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c index fc3c944ca4be..101aed9a61ca 100644 --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -31,11 +31,10 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) } spin_unlock_irq(&hwif->lock); - rq = blk_get_request(q, READ, __GFP_RECLAIM); + rq = blk_get_request(q, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); scsi_req(rq)->cmd[0] = REQ_PARK_HEADS; scsi_req(rq)->cmd_len = 1; - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; rq->special = &timeout; rc = blk_execute_rq(q, NULL, rq, 1); @@ -47,14 +46,13 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) * Make sure that *some* command is sent to the drive after the * timeout has expired, so power management will be reenabled. */ - rq = blk_get_request(q, READ, GFP_NOWAIT); + rq = blk_get_request(q, REQ_OP_DRV_IN, GFP_NOWAIT); scsi_req_init(rq); if (IS_ERR(rq)) goto out; scsi_req(rq)->cmd[0] = REQ_UNPARK_HEADS; scsi_req(rq)->cmd_len = 1; - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; elv_add_request(q, rq, ELEVATOR_INSERT_FRONT); diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c index 0c1296815dfa..ec951be4b0c8 100644 --- a/drivers/ide/ide-pm.c +++ b/drivers/ide/ide-pm.c @@ -18,9 +18,8 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) } memset(&rqpm, 0, sizeof(rqpm)); - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_PM_SUSPEND; rq->special = &rqpm; rqpm.pm_step = IDE_PM_START_SUSPEND; @@ -90,9 +89,8 @@ int generic_ide_resume(struct device *dev) } memset(&rqpm, 0, sizeof(rqpm)); - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_PM_RESUME; rq->rq_flags |= RQF_PREEMPT; rq->special = &rqpm; @@ -244,12 +242,12 @@ void ide_check_pm_state(ide_drive_t *drive, struct request *rq) { struct ide_pm_state *pm = rq->special; - if (rq->cmd_type == REQ_TYPE_DRV_PRIV && + if (blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PM_SUSPEND && pm->pm_step == IDE_PM_START_SUSPEND) /* Mark drive blocked when starting the suspend sequence. */ drive->dev_flags |= IDE_DFLAG_BLOCKED; - else if (rq->cmd_type == REQ_TYPE_DRV_PRIV && + else if (blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PM_RESUME && pm->pm_step == IDE_PM_START_RESUME) { /* diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 37c7beabaacc..3c1b7974d66d 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -577,7 +577,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, req->cmd[0], (unsigned long long)blk_rq_pos(rq), blk_rq_sectors(rq)); - BUG_ON(rq->cmd_type != REQ_TYPE_DRV_PRIV); + BUG_ON(!blk_rq_is_private(rq)); BUG_ON(ide_req(rq)->type != ATA_PRIV_MISC && ide_req(rq)->type != ATA_PRIV_SENSE); @@ -854,9 +854,8 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int size) BUG_ON(cmd != REQ_IDETAPE_READ && cmd != REQ_IDETAPE_WRITE); BUG_ON(size < 0 || size % tape->blk_size); - rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd[13] = cmd; rq->rq_disk = tape->disk; diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 9ccc1d573393..247b9faccce1 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -428,11 +428,11 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, { struct request *rq; int error; - int rw = !(cmd->tf_flags & IDE_TFLAG_WRITE) ? READ : WRITE; - rq = blk_get_request(drive->queue, rw, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, + (cmd->tf_flags & IDE_TFLAG_WRITE) ? + REQ_OP_DRV_OUT : REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); - rq->cmd_type = REQ_TYPE_DRV_PRIV; ide_req(rq)->type = ATA_PRIV_TASKFILE; /* diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index df8a5ef334c0..6b8d5cd7dbf6 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -84,9 +84,6 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, nsect = blk_rq_cur_bytes(req) >> tr->blkshift; buf = bio_data(req->bio); - if (req->cmd_type != REQ_TYPE_FS) - return -EIO; - if (req_op(req) == REQ_OP_FLUSH) return tr->flush(dev); @@ -94,16 +91,16 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, get_capacity(req->rq_disk)) return -EIO; - if (req_op(req) == REQ_OP_DISCARD) + switch (req_op(req)) { + case REQ_OP_DISCARD: return tr->discard(dev, block, nsect); - - if (rq_data_dir(req) == READ) { + case REQ_OP_READ: for (; nsect > 0; nsect--, block++, buf += tr->blksize) if (tr->readsect(dev, block, buf)) return -EIO; rq_flush_dcache_pages(req); return 0; - } else { + case REQ_OP_WRITE: if (!tr->writesect) return -EIO; @@ -112,6 +109,8 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, if (tr->writesect(dev, block, buf)) return -EIO; return 0; + default: + return -EIO; } } diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c index d1e6931c132f..c80869e60909 100644 --- a/drivers/mtd/ubi/block.c +++ b/drivers/mtd/ubi/block.c @@ -323,16 +323,15 @@ static int ubiblock_queue_rq(struct blk_mq_hw_ctx *hctx, struct ubiblock *dev = hctx->queue->queuedata; struct ubiblock_pdu *pdu = blk_mq_rq_to_pdu(req); - if (req->cmd_type != REQ_TYPE_FS) + switch (req_op(req)) { + case REQ_OP_READ: + ubi_sgl_init(&pdu->usgl); + queue_work(dev->wq, &pdu->work); + return BLK_MQ_RQ_QUEUE_OK; + default: return BLK_MQ_RQ_QUEUE_ERROR; + } - if (rq_data_dir(req) != READ) - return BLK_MQ_RQ_QUEUE_ERROR; /* Write not implemented */ - - ubi_sgl_init(&pdu->usgl); - queue_work(dev->wq, &pdu->work); - - return BLK_MQ_RQ_QUEUE_OK; } static int ubiblock_init_request(void *data, struct request *req, diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 8a3c3e32a704..1640a5c8abbb 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -208,18 +208,18 @@ EXPORT_SYMBOL_GPL(nvme_requeue_req); struct request *nvme_alloc_request(struct request_queue *q, struct nvme_command *cmd, unsigned int flags, int qid) { + unsigned op = nvme_is_write(cmd) ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN; struct request *req; if (qid == NVME_QID_ANY) { - req = blk_mq_alloc_request(q, nvme_is_write(cmd), flags); + req = blk_mq_alloc_request(q, op, flags); } else { - req = blk_mq_alloc_request_hctx(q, nvme_is_write(cmd), flags, + req = blk_mq_alloc_request_hctx(q, op, flags, qid ? qid - 1 : 0); } if (IS_ERR(req)) return req; - req->cmd_type = REQ_TYPE_DRV_PRIV; req->cmd_flags |= REQ_FAILFAST_DRIVER; nvme_req(req)->cmd = cmd; @@ -309,17 +309,27 @@ int nvme_setup_cmd(struct nvme_ns *ns, struct request *req, { int ret = BLK_MQ_RQ_QUEUE_OK; - if (req->cmd_type == REQ_TYPE_DRV_PRIV) + switch (req_op(req)) { + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: memcpy(cmd, nvme_req(req)->cmd, sizeof(*cmd)); - else if (req_op(req) == REQ_OP_FLUSH) + break; + case REQ_OP_FLUSH: nvme_setup_flush(ns, cmd); - else if (req_op(req) == REQ_OP_DISCARD) + break; + case REQ_OP_DISCARD: ret = nvme_setup_discard(ns, req, cmd); - else + break; + case REQ_OP_READ: + case REQ_OP_WRITE: nvme_setup_rw(ns, req, cmd); + break; + default: + WARN_ON_ONCE(1); + return BLK_MQ_RQ_QUEUE_ERROR; + } cmd->common.command_id = req->tag; - return ret; } EXPORT_SYMBOL_GPL(nvme_setup_cmd); diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index ecc79b2fcfaf..a75e95d42b3f 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1471,7 +1471,7 @@ static int nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx, ib_dma_sync_single_for_device(dev, sqe->dma, sizeof(struct nvme_command), DMA_TO_DEVICE); - if (rq->cmd_type == REQ_TYPE_FS && req_op(rq) == REQ_OP_FLUSH) + if (req_op(rq) == REQ_OP_FLUSH) flush = true; ret = nvme_rdma_post_send(queue, sqe, req->sge, req->num_sge, req->mr->need_inval ? &req->reg_wr.wr : NULL, flush); diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index fcb040eebf47..30b905080c61 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -1565,7 +1565,8 @@ static struct request *_make_request(struct request_queue *q, bool has_write, struct bio *bio = oii->bio; int ret; - req = blk_get_request(q, has_write ? WRITE : READ, flags); + req = blk_get_request(q, has_write ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, + flags); if (IS_ERR(req)) return req; scsi_req_init(req); diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index d314aa5c71cf..451de6c5e3c9 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -367,7 +367,8 @@ static int osst_execute(struct osst_request *SRpnt, const unsigned char *cmd, int err = 0; int write = (data_direction == DMA_TO_DEVICE); - req = blk_get_request(SRpnt->stp->device->request_queue, write, GFP_KERNEL); + req = blk_get_request(SRpnt->stp->device->request_queue, + write ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(req)) return DRIVER_ERROR << 24; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index b4ce7bb5d2a9..9e82fa5715bc 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1974,7 +1974,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) * blk_get_request with GFP_KERNEL (__GFP_RECLAIM) sleeps until a * request becomes available */ - req = blk_get_request(sdev->request_queue, READ, GFP_KERNEL); + req = blk_get_request(sdev->request_queue, REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(req)) return; rq = scsi_req(req); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 31629a7b728d..90f65c8f487a 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -219,11 +219,12 @@ static int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, req_flags_t rq_flags, int *resid) { struct request *req; - int write = (data_direction == DMA_TO_DEVICE); struct scsi_request *rq; int ret = DRIVER_ERROR << 24; - req = blk_get_request(sdev->request_queue, write, __GFP_RECLAIM); + req = blk_get_request(sdev->request_queue, + data_direction == DMA_TO_DEVICE ? + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, __GFP_RECLAIM); if (IS_ERR(req)) return ret; rq = scsi_req(req); @@ -839,8 +840,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) } } else if (blk_rq_bytes(req) == 0 && result && !sense_deferred) { /* - * Certain non BLOCK_PC requests are commands that don't - * actually transfer anything (FLUSH), so cannot use + * Flush commands do not transfers any data, and thus cannot use * good_bytes != blk_rq_bytes(req) as the signal for an error. * This sets the error explicitly for the problem case. */ @@ -859,8 +859,8 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) blk_rq_sectors(req), good_bytes)); /* - * Recovered errors need reporting, but they're always treated - * as success, so fiddle the result code here. For BLOCK_PC + * Recovered errors need reporting, but they're always treated as + * success, so fiddle the result code here. For passthrough requests * we already took a copy of the original into rq->errors which * is what gets returned to the user */ @@ -874,7 +874,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) else if (!(req->rq_flags & RQF_QUIET)) scsi_print_sense(cmd); result = 0; - /* BLOCK_PC may have set error */ + /* for passthrough error may be set */ error = 0; } @@ -1179,12 +1179,12 @@ void scsi_init_command(struct scsi_device *dev, struct scsi_cmnd *cmd) spin_unlock_irqrestore(&dev->list_lock, flags); } -static int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req) +static int scsi_setup_scsi_cmnd(struct scsi_device *sdev, struct request *req) { struct scsi_cmnd *cmd = req->special; /* - * BLOCK_PC requests may transfer data, in which case they must + * Passthrough requests may transfer data, in which case they must * a bio attached to them. Or they might contain a SCSI command * that does not transfer data, in which case they may optionally * submit a request without an attached bio. @@ -1207,7 +1207,7 @@ static int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req) } /* - * Setup a REQ_TYPE_FS command. These are simple request from filesystems + * Setup a normal block command. These are simple request from filesystems * that still need to be translated to SCSI CDBs from the ULD. */ static int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req) @@ -1236,14 +1236,10 @@ static int scsi_setup_cmnd(struct scsi_device *sdev, struct request *req) else cmd->sc_data_direction = DMA_FROM_DEVICE; - switch (req->cmd_type) { - case REQ_TYPE_FS: + if (blk_rq_is_scsi(req)) + return scsi_setup_scsi_cmnd(sdev, req); + else return scsi_setup_fs_cmnd(sdev, req); - case REQ_TYPE_BLOCK_PC: - return scsi_setup_blk_pc_cmnd(sdev, req); - default: - return BLKPREP_KILL; - } } static int diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 226a8def7a8b..e0e308b7e01a 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1698,7 +1698,8 @@ sg_start_req(Sg_request *srp, unsigned char *cmd) * With scsi-mq disabled, blk_get_request() with GFP_KERNEL usually * does not sleep except under memory pressure. */ - rq = blk_get_request(q, rw, GFP_KERNEL); + rq = blk_get_request(q, hp->dxfer_direction == SG_DXFER_TO_DEV ? + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(rq)) { kfree(long_cmdp); return PTR_ERR(rq); diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 94352e4df831..2e1d910092d8 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -437,14 +437,17 @@ static int sr_init_command(struct scsi_cmnd *SCpnt) goto out; } - if (rq_data_dir(rq) == WRITE) { + switch (req_op(rq)) { + case REQ_OP_WRITE: if (!cd->writeable) goto out; SCpnt->cmnd[0] = WRITE_10; cd->cdi.media_written = 1; - } else if (rq_data_dir(rq) == READ) { + break; + case REQ_OP_READ: SCpnt->cmnd[0] = READ_10; - } else { + break; + default: blk_dump_rq_flags(rq, "Unknown sr command"); goto out; } diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 4af900100a24..81212d4bd9bf 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -541,11 +541,11 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd, struct scsi_request *rq; struct rq_map_data *mdata = &SRpnt->stp->buffer->map_data; int err = 0; - int write = (data_direction == DMA_TO_DEVICE); struct scsi_tape *STp = SRpnt->stp; - req = blk_get_request(SRpnt->stp->device->request_queue, write, - GFP_KERNEL); + req = blk_get_request(SRpnt->stp->device->request_queue, + data_direction == DMA_TO_DEVICE ? + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(req)) return DRIVER_ERROR << 24; rq = scsi_req(req); diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index e52f4e1a4675..a8f8e53f2f57 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -1005,7 +1005,8 @@ pscsi_execute_cmd(struct se_cmd *cmd) scsi_command_size(cmd->t_task_cdb)); req = blk_get_request(pdv->pdv_sd->request_queue, - (cmd->data_direction == DMA_TO_DEVICE), + cmd->data_direction == DMA_TO_DEVICE ? + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(req)) { pr_err("PSCSI: blk_get_request() failed\n"); diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index 930d98caab5b..a06115e31612 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -223,7 +223,7 @@ static int nfsd4_scsi_identify_device(struct block_device *bdev, if (!buf) return -ENOMEM; - rq = blk_get_request(q, READ, GFP_KERNEL); + rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(rq)) { error = -ENOMEM; goto out_free_buf; diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 37c9a43c5e78..d703acb55d0f 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -162,6 +162,13 @@ enum req_opf { /* write the zero filled sector many times */ REQ_OP_WRITE_ZEROES = 8, + /* SCSI passthrough using struct scsi_request */ + REQ_OP_SCSI_IN = 32, + REQ_OP_SCSI_OUT = 33, + /* Driver private requests */ + REQ_OP_DRV_IN = 34, + REQ_OP_DRV_OUT = 35, + REQ_OP_LAST, }; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 7121be081517..1e947e725528 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -70,15 +70,6 @@ struct request_list { unsigned int flags; }; -/* - * request command types - */ -enum rq_cmd_type_bits { - REQ_TYPE_FS = 1, /* fs request */ - REQ_TYPE_BLOCK_PC, /* scsi command */ - REQ_TYPE_DRV_PRIV, /* driver defined types from here */ -}; - /* * request flags */ typedef __u32 __bitwise req_flags_t; @@ -145,7 +136,6 @@ struct request { struct blk_mq_ctx *mq_ctx; int cpu; - unsigned cmd_type; unsigned int cmd_flags; /* op and common flags */ req_flags_t rq_flags; unsigned long atomic_flags; @@ -242,9 +232,19 @@ struct request { struct request *next_rq; }; +static inline bool blk_rq_is_scsi(struct request *rq) +{ + return req_op(rq) == REQ_OP_SCSI_IN || req_op(rq) == REQ_OP_SCSI_OUT; +} + +static inline bool blk_rq_is_private(struct request *rq) +{ + return req_op(rq) == REQ_OP_DRV_IN || req_op(rq) == REQ_OP_DRV_OUT; +} + static inline bool blk_rq_is_passthrough(struct request *rq) { - return rq->cmd_type != REQ_TYPE_FS; + return blk_rq_is_scsi(rq) || blk_rq_is_private(rq); } static inline unsigned short req_get_ioprio(struct request *req) diff --git a/include/linux/ide.h b/include/linux/ide.h index 5cc6caa94cac..2f51c1724b5a 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -63,31 +63,27 @@ static inline struct ide_request *ide_req(struct request *rq) static inline bool ata_misc_request(struct request *rq) { - return rq->cmd_type == REQ_TYPE_DRV_PRIV && - ide_req(rq)->type == ATA_PRIV_MISC; + return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_MISC; } static inline bool ata_taskfile_request(struct request *rq) { - return rq->cmd_type == REQ_TYPE_DRV_PRIV && - ide_req(rq)->type == ATA_PRIV_TASKFILE; + return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_TASKFILE; } static inline bool ata_pc_request(struct request *rq) { - return rq->cmd_type == REQ_TYPE_DRV_PRIV && - ide_req(rq)->type == ATA_PRIV_PC; + return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PC; } static inline bool ata_sense_request(struct request *rq) { - return rq->cmd_type == REQ_TYPE_DRV_PRIV && - ide_req(rq)->type == ATA_PRIV_SENSE; + return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_SENSE; } static inline bool ata_pm_request(struct request *rq) { - return rq->cmd_type == REQ_TYPE_DRV_PRIV && + return blk_rq_is_private(rq) && (ide_req(rq)->type == ATA_PRIV_PM_SUSPEND || ide_req(rq)->type == ATA_PRIV_PM_RESUME); } -- cgit v1.2.3-58-ga151 From b35ba01ea6979125e9c23fb322517748278f15e6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 8 Feb 2017 14:46:50 +0100 Subject: nvme: support ranged discard requests NVMe supports up to 256 ranges per DSM command, so wire up support for ranged discards up to that limit. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- drivers/nvme/host/core.c | 30 +++++++++++++++++++++++------- include/linux/nvme.h | 2 ++ 2 files changed, 25 insertions(+), 7 deletions(-) (limited to 'drivers/nvme') diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 1640a5c8abbb..2701c21d1719 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -238,26 +238,38 @@ static inline void nvme_setup_flush(struct nvme_ns *ns, static inline int nvme_setup_discard(struct nvme_ns *ns, struct request *req, struct nvme_command *cmnd) { + unsigned short segments = blk_rq_nr_discard_segments(req), n = 0; struct nvme_dsm_range *range; - unsigned int nr_bytes = blk_rq_bytes(req); + struct bio *bio; - range = kmalloc(sizeof(*range), GFP_ATOMIC); + range = kmalloc_array(segments, sizeof(*range), GFP_ATOMIC); if (!range) return BLK_MQ_RQ_QUEUE_BUSY; - range->cattr = cpu_to_le32(0); - range->nlb = cpu_to_le32(nr_bytes >> ns->lba_shift); - range->slba = cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req))); + __rq_for_each_bio(bio, req) { + u64 slba = nvme_block_nr(ns, bio->bi_iter.bi_sector); + u32 nlb = bio->bi_iter.bi_size >> ns->lba_shift; + + range[n].cattr = cpu_to_le32(0); + range[n].nlb = cpu_to_le32(nlb); + range[n].slba = cpu_to_le64(slba); + n++; + } + + if (WARN_ON_ONCE(n != segments)) { + kfree(range); + return BLK_MQ_RQ_QUEUE_ERROR; + } memset(cmnd, 0, sizeof(*cmnd)); cmnd->dsm.opcode = nvme_cmd_dsm; cmnd->dsm.nsid = cpu_to_le32(ns->ns_id); - cmnd->dsm.nr = 0; + cmnd->dsm.nr = segments - 1; cmnd->dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD); req->special_vec.bv_page = virt_to_page(range); req->special_vec.bv_offset = offset_in_page(range); - req->special_vec.bv_len = sizeof(*range); + req->special_vec.bv_len = sizeof(*range) * segments; req->rq_flags |= RQF_SPECIAL_PAYLOAD; return BLK_MQ_RQ_QUEUE_OK; @@ -871,6 +883,9 @@ static void nvme_config_discard(struct nvme_ns *ns) struct nvme_ctrl *ctrl = ns->ctrl; u32 logical_block_size = queue_logical_block_size(ns->queue); + BUILD_BUG_ON(PAGE_SIZE / sizeof(struct nvme_dsm_range) < + NVME_DSM_MAX_RANGES); + if (ctrl->quirks & NVME_QUIRK_DISCARD_ZEROES) ns->queue->limits.discard_zeroes_data = 1; else @@ -879,6 +894,7 @@ static void nvme_config_discard(struct nvme_ns *ns) ns->queue->limits.discard_alignment = logical_block_size; ns->queue->limits.discard_granularity = logical_block_size; blk_queue_max_discard_sectors(ns->queue, UINT_MAX); + blk_queue_max_discard_segments(ns->queue, NVME_DSM_MAX_RANGES); queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, ns->queue); } diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 3d1c6f1b15c9..3e2ed49c3ad8 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -553,6 +553,8 @@ enum { NVME_DSMGMT_AD = 1 << 2, }; +#define NVME_DSM_MAX_RANGES 256 + struct nvme_dsm_range { __le32 cattr; __le32 nlb; -- cgit v1.2.3-58-ga151