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-rw-r--r--drivers/scsi/osd/osd_initiator.c29
-rw-r--r--drivers/scsi/osst.c3
-rw-r--r--drivers/scsi/scsi_debug.c10
-rw-r--r--drivers/scsi/scsi_error.c3
-rw-r--r--drivers/scsi/scsi_lib.c104
-rw-r--r--drivers/scsi/scsi_transport_sas.c10
-rw-r--r--drivers/scsi/sg.c8
-rw-r--r--drivers/scsi/st.c3
8 files changed, 85 insertions, 85 deletions
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 8a1b94816419..a4f28b7e4c65 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -446,7 +446,7 @@ static void _put_request(struct request *rq)
* code paths.
*/
if (unlikely(rq->bio))
- blk_end_request(rq, -ENOMEM, blk_rq_bytes(rq));
+ blk_end_request(rq, BLK_STS_IOERR, blk_rq_bytes(rq));
else
blk_put_request(rq);
}
@@ -474,10 +474,10 @@ void osd_end_request(struct osd_request *or)
EXPORT_SYMBOL(osd_end_request);
static void _set_error_resid(struct osd_request *or, struct request *req,
- int error)
+ blk_status_t error)
{
or->async_error = error;
- or->req_errors = scsi_req(req)->result ? : error;
+ or->req_errors = scsi_req(req)->result;
or->sense_len = scsi_req(req)->sense_len;
if (or->sense_len)
memcpy(or->sense, scsi_req(req)->sense, or->sense_len);
@@ -489,17 +489,19 @@ static void _set_error_resid(struct osd_request *or, struct request *req,
int osd_execute_request(struct osd_request *or)
{
- int error;
-
blk_execute_rq(or->request->q, NULL, or->request, 0);
- error = scsi_req(or->request)->result ? -EIO : 0;
- _set_error_resid(or, or->request, error);
- return error;
+ if (scsi_req(or->request)->result) {
+ _set_error_resid(or, or->request, BLK_STS_IOERR);
+ return -EIO;
+ }
+
+ _set_error_resid(or, or->request, BLK_STS_OK);
+ return 0;
}
EXPORT_SYMBOL(osd_execute_request);
-static void osd_request_async_done(struct request *req, int error)
+static void osd_request_async_done(struct request *req, blk_status_t error)
{
struct osd_request *or = req->end_io_data;
@@ -1572,13 +1574,9 @@ static struct request *_make_request(struct request_queue *q, bool has_write,
flags);
if (IS_ERR(req))
return req;
- scsi_req_init(req);
for_each_bio(bio) {
- struct bio *bounce_bio = bio;
-
- blk_queue_bounce(req->q, &bounce_bio);
- ret = blk_rq_append_bio(req, bounce_bio);
+ ret = blk_rq_append_bio(req, bio);
if (ret)
return ERR_PTR(ret);
}
@@ -1617,7 +1615,6 @@ static int _init_blk_request(struct osd_request *or,
ret = PTR_ERR(req);
goto out;
}
- scsi_req_init(req);
or->in.req = or->request->next_rq = req;
}
} else if (has_in)
@@ -1914,7 +1911,7 @@ analyze:
/* scsi sense is Empty, the request was never issued to target
* linux return code might tell us what happened.
*/
- if (or->async_error == -ENOMEM)
+ if (or->async_error == BLK_STS_RESOURCE)
osi->osd_err_pri = OSD_ERR_PRI_RESOURCE;
else
osi->osd_err_pri = OSD_ERR_PRI_UNREACHABLE;
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 67cbed92f07d..929ee7e88120 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -320,7 +320,7 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt)
/* Wakeup from interrupt */
-static void osst_end_async(struct request *req, int update)
+static void osst_end_async(struct request *req, blk_status_t status)
{
struct scsi_request *rq = scsi_req(req);
struct osst_request *SRpnt = req->end_io_data;
@@ -373,7 +373,6 @@ static int osst_execute(struct osst_request *SRpnt, const unsigned char *cmd,
return DRIVER_ERROR << 24;
rq = scsi_req(req);
- scsi_req_init(req);
req->rq_flags |= RQF_QUIET;
SRpnt->bio = NULL;
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index dc095a292c61..3be980d47268 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -245,7 +245,7 @@ struct sdebug_dev_info {
unsigned int channel;
unsigned int target;
u64 lun;
- uuid_be lu_name;
+ uuid_t lu_name;
struct sdebug_host_info *sdbg_host;
unsigned long uas_bm[1];
atomic_t num_in_q;
@@ -965,7 +965,7 @@ static const u64 naa3_comp_c = 0x3111111000000000ULL;
static int inquiry_vpd_83(unsigned char *arr, int port_group_id,
int target_dev_id, int dev_id_num,
const char *dev_id_str, int dev_id_str_len,
- const uuid_be *lu_name)
+ const uuid_t *lu_name)
{
int num, port_a;
char b[32];
@@ -3568,7 +3568,7 @@ static void sdebug_q_cmd_wq_complete(struct work_struct *work)
}
static bool got_shared_uuid;
-static uuid_be shared_uuid;
+static uuid_t shared_uuid;
static struct sdebug_dev_info *sdebug_device_create(
struct sdebug_host_info *sdbg_host, gfp_t flags)
@@ -3578,12 +3578,12 @@ static struct sdebug_dev_info *sdebug_device_create(
devip = kzalloc(sizeof(*devip), flags);
if (devip) {
if (sdebug_uuid_ctl == 1)
- uuid_be_gen(&devip->lu_name);
+ uuid_gen(&devip->lu_name);
else if (sdebug_uuid_ctl == 2) {
if (got_shared_uuid)
devip->lu_name = shared_uuid;
else {
- uuid_be_gen(&shared_uuid);
+ uuid_gen(&shared_uuid);
got_shared_uuid = true;
devip->lu_name = shared_uuid;
}
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index ecc07dab893d..304a7158540f 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1874,7 +1874,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
}
}
-static void eh_lock_door_done(struct request *req, int uptodate)
+static void eh_lock_door_done(struct request *req, blk_status_t status)
{
__blk_put_request(req->q, req);
}
@@ -1903,7 +1903,6 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
if (IS_ERR(req))
return;
rq = scsi_req(req);
- scsi_req_init(req);
rq->cmd[0] = ALLOW_MEDIUM_REMOVAL;
rq->cmd[1] = 0;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 99e16ac479e3..550e29f903b7 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -250,7 +250,6 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
if (IS_ERR(req))
return ret;
rq = scsi_req(req);
- scsi_req_init(req);
if (bufflen && blk_rq_map_kern(sdev->request_queue, req,
buffer, bufflen, __GFP_RECLAIM))
@@ -635,7 +634,7 @@ static void scsi_release_bidi_buffers(struct scsi_cmnd *cmd)
cmd->request->next_rq->special = NULL;
}
-static bool scsi_end_request(struct request *req, int error,
+static bool scsi_end_request(struct request *req, blk_status_t error,
unsigned int bytes, unsigned int bidi_bytes)
{
struct scsi_cmnd *cmd = req->special;
@@ -694,45 +693,28 @@ static bool scsi_end_request(struct request *req, int error,
* @cmd: SCSI command (unused)
* @result: scsi error code
*
- * Translate SCSI error code into standard UNIX errno.
- * Return values:
- * -ENOLINK temporary transport failure
- * -EREMOTEIO permanent target failure, do not retry
- * -EBADE permanent nexus failure, retry on other path
- * -ENOSPC No write space available
- * -ENODATA Medium error
- * -EIO unspecified I/O error
+ * Translate SCSI error code into block errors.
*/
-static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result)
+static blk_status_t __scsi_error_from_host_byte(struct scsi_cmnd *cmd,
+ int result)
{
- int error = 0;
-
- switch(host_byte(result)) {
+ switch (host_byte(result)) {
case DID_TRANSPORT_FAILFAST:
- error = -ENOLINK;
- break;
+ return BLK_STS_TRANSPORT;
case DID_TARGET_FAILURE:
set_host_byte(cmd, DID_OK);
- error = -EREMOTEIO;
- break;
+ return BLK_STS_TARGET;
case DID_NEXUS_FAILURE:
- set_host_byte(cmd, DID_OK);
- error = -EBADE;
- break;
+ return BLK_STS_NEXUS;
case DID_ALLOC_FAILURE:
set_host_byte(cmd, DID_OK);
- error = -ENOSPC;
- break;
+ return BLK_STS_NOSPC;
case DID_MEDIUM_ERROR:
set_host_byte(cmd, DID_OK);
- error = -ENODATA;
- break;
+ return BLK_STS_MEDIUM;
default:
- error = -EIO;
- break;
+ return BLK_STS_IOERR;
}
-
- return error;
}
/*
@@ -769,7 +751,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
int result = cmd->result;
struct request_queue *q = cmd->device->request_queue;
struct request *req = cmd->request;
- int error = 0;
+ blk_status_t error = BLK_STS_OK;
struct scsi_sense_hdr sshdr;
bool sense_valid = false;
int sense_deferred = 0, level = 0;
@@ -808,7 +790,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
* both sides at once.
*/
scsi_req(req->next_rq)->resid_len = scsi_in(cmd)->resid;
- if (scsi_end_request(req, 0, blk_rq_bytes(req),
+ if (scsi_end_request(req, BLK_STS_OK, blk_rq_bytes(req),
blk_rq_bytes(req->next_rq)))
BUG();
return;
@@ -850,7 +832,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
scsi_print_sense(cmd);
result = 0;
/* for passthrough error may be set */
- error = 0;
+ error = BLK_STS_OK;
}
/*
@@ -922,18 +904,18 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
action = ACTION_REPREP;
} else if (sshdr.asc == 0x10) /* DIX */ {
action = ACTION_FAIL;
- error = -EILSEQ;
+ error = BLK_STS_PROTECTION;
/* INVALID COMMAND OPCODE or INVALID FIELD IN CDB */
} else if (sshdr.asc == 0x20 || sshdr.asc == 0x24) {
action = ACTION_FAIL;
- error = -EREMOTEIO;
+ error = BLK_STS_TARGET;
} else
action = ACTION_FAIL;
break;
case ABORTED_COMMAND:
action = ACTION_FAIL;
if (sshdr.asc == 0x10) /* DIF */
- error = -EILSEQ;
+ error = BLK_STS_PROTECTION;
break;
case NOT_READY:
/* If the device is in the process of becoming
@@ -1134,6 +1116,20 @@ err_exit:
}
EXPORT_SYMBOL(scsi_init_io);
+/**
+ * scsi_initialize_rq - initialize struct scsi_cmnd.req
+ *
+ * Called from inside blk_get_request().
+ */
+void scsi_initialize_rq(struct request *rq)
+{
+ struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
+
+ scsi_req_init(&cmd->req);
+}
+EXPORT_SYMBOL(scsi_initialize_rq);
+
+/* Called after a request has been started. */
void scsi_init_command(struct scsi_device *dev, struct scsi_cmnd *cmd)
{
void *buf = cmd->sense_buffer;
@@ -1829,15 +1825,15 @@ out_delay:
blk_delay_queue(q, SCSI_QUEUE_DELAY);
}
-static inline int prep_to_mq(int ret)
+static inline blk_status_t prep_to_mq(int ret)
{
switch (ret) {
case BLKPREP_OK:
- return BLK_MQ_RQ_QUEUE_OK;
+ return BLK_STS_OK;
case BLKPREP_DEFER:
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
default:
- return BLK_MQ_RQ_QUEUE_ERROR;
+ return BLK_STS_IOERR;
}
}
@@ -1909,7 +1905,7 @@ static void scsi_mq_done(struct scsi_cmnd *cmd)
blk_mq_complete_request(cmd->request);
}
-static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
+static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
struct request *req = bd->rq;
@@ -1917,14 +1913,14 @@ static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
struct scsi_device *sdev = q->queuedata;
struct Scsi_Host *shost = sdev->host;
struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req);
- int ret;
+ blk_status_t ret;
int reason;
ret = prep_to_mq(scsi_prep_state_check(sdev, req));
- if (ret != BLK_MQ_RQ_QUEUE_OK)
+ if (ret != BLK_STS_OK)
goto out;
- ret = BLK_MQ_RQ_QUEUE_BUSY;
+ ret = BLK_STS_RESOURCE;
if (!get_device(&sdev->sdev_gendev))
goto out;
@@ -1937,7 +1933,7 @@ static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
if (!(req->rq_flags & RQF_DONTPREP)) {
ret = prep_to_mq(scsi_mq_prep_fn(req));
- if (ret != BLK_MQ_RQ_QUEUE_OK)
+ if (ret != BLK_STS_OK)
goto out_dec_host_busy;
req->rq_flags |= RQF_DONTPREP;
} else {
@@ -1955,11 +1951,11 @@ static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
reason = scsi_dispatch_cmd(cmd);
if (reason) {
scsi_set_blocked(cmd, reason);
- ret = BLK_MQ_RQ_QUEUE_BUSY;
+ ret = BLK_STS_RESOURCE;
goto out_dec_host_busy;
}
- return BLK_MQ_RQ_QUEUE_OK;
+ return BLK_STS_OK;
out_dec_host_busy:
atomic_dec(&shost->host_busy);
@@ -1972,12 +1968,14 @@ out_put_device:
put_device(&sdev->sdev_gendev);
out:
switch (ret) {
- case BLK_MQ_RQ_QUEUE_BUSY:
+ case BLK_STS_OK:
+ break;
+ case BLK_STS_RESOURCE:
if (atomic_read(&sdev->device_busy) == 0 &&
!scsi_device_blocked(sdev))
blk_mq_delay_run_hw_queue(hctx, SCSI_QUEUE_DELAY);
break;
- case BLK_MQ_RQ_QUEUE_ERROR:
+ default:
/*
* Make sure to release all allocated ressources when
* we hit an error, as we will never see this command
@@ -1986,8 +1984,6 @@ out:
if (req->rq_flags & RQF_DONTPREP)
scsi_mq_uninit_cmd(cmd);
break;
- default:
- break;
}
return ret;
}
@@ -2057,6 +2053,8 @@ void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q)
{
struct device *dev = shost->dma_dev;
+ queue_flag_set_unlocked(QUEUE_FLAG_SCSI_PASSTHROUGH, q);
+
/*
* this limit is imposed by hardware restrictions
*/
@@ -2139,6 +2137,7 @@ struct request_queue *scsi_alloc_queue(struct scsi_device *sdev)
q->request_fn = scsi_request_fn;
q->init_rq_fn = scsi_init_rq;
q->exit_rq_fn = scsi_exit_rq;
+ q->initialize_rq_fn = scsi_initialize_rq;
if (blk_init_allocated_queue(q) < 0) {
blk_cleanup_queue(q);
@@ -2163,6 +2162,7 @@ static const struct blk_mq_ops scsi_mq_ops = {
#endif
.init_request = scsi_init_request,
.exit_request = scsi_exit_request,
+ .initialize_rq_fn = scsi_initialize_rq,
.map_queues = scsi_map_queues,
};
@@ -2977,7 +2977,7 @@ scsi_internal_device_block(struct scsi_device *sdev, bool wait)
if (wait)
blk_mq_quiesce_queue(q);
else
- blk_mq_stop_hw_queues(q);
+ blk_mq_quiesce_queue_nowait(q);
} else {
spin_lock_irqsave(q->queue_lock, flags);
blk_stop_queue(q);
@@ -3031,7 +3031,7 @@ scsi_internal_device_unblock(struct scsi_device *sdev,
return -EINVAL;
if (q->mq_ops) {
- blk_mq_start_stopped_hw_queues(q, false);
+ blk_mq_unquiesce_queue(q);
} else {
spin_lock_irqsave(q->queue_lock, flags);
blk_start_queue(q);
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index 0ebe2f1bb908..5006a656e16a 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -33,6 +33,7 @@
#include <linux/bsg.h>
#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_request.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
@@ -172,7 +173,7 @@ static void sas_smp_request(struct request_queue *q, struct Scsi_Host *shost,
struct sas_rphy *rphy)
{
struct request *req;
- int ret;
+ blk_status_t ret;
int (*handler)(struct Scsi_Host *, struct sas_rphy *, struct request *);
while ((req = blk_fetch_request(q)) != NULL) {
@@ -230,6 +231,7 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
q = blk_alloc_queue(GFP_KERNEL);
if (!q)
return -ENOMEM;
+ q->initialize_rq_fn = scsi_initialize_rq;
q->cmd_size = sizeof(struct scsi_request);
if (rphy) {
@@ -249,6 +251,11 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
if (error)
goto out_cleanup_queue;
+ /*
+ * by default assume old behaviour and bounce for any highmem page
+ */
+ blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
+
error = bsg_register_queue(q, dev, name, release);
if (error)
goto out_cleanup_queue;
@@ -264,6 +271,7 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
q->queuedata = shost;
queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
+ queue_flag_set_unlocked(QUEUE_FLAG_SCSI_PASSTHROUGH, q);
return 0;
out_cleanup_queue:
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 82c33a6edbea..21225d62b0c1 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -177,7 +177,7 @@ typedef struct sg_device { /* holds the state of each scsi generic device */
} Sg_device;
/* tasklet or soft irq callback */
-static void sg_rq_end_io(struct request *rq, int uptodate);
+static void sg_rq_end_io(struct request *rq, blk_status_t status);
static int sg_start_req(Sg_request *srp, unsigned char *cmd);
static int sg_finish_rem_req(Sg_request * srp);
static int sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size);
@@ -808,7 +808,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
if (atomic_read(&sdp->detaching)) {
if (srp->bio) {
scsi_req_free_cmd(scsi_req(srp->rq));
- blk_end_request_all(srp->rq, -EIO);
+ blk_end_request_all(srp->rq, BLK_STS_IOERR);
srp->rq = NULL;
}
@@ -1300,7 +1300,7 @@ sg_rq_end_io_usercontext(struct work_struct *work)
* level when a command is completed (or has failed).
*/
static void
-sg_rq_end_io(struct request *rq, int uptodate)
+sg_rq_end_io(struct request *rq, blk_status_t status)
{
struct sg_request *srp = rq->end_io_data;
struct scsi_request *req = scsi_req(rq);
@@ -1732,8 +1732,6 @@ sg_start_req(Sg_request *srp, unsigned char *cmd)
}
req = scsi_req(rq);
- scsi_req_init(rq);
-
if (hp->cmd_len > BLK_MAX_CDB)
req->cmd = long_cmdp;
memcpy(req->cmd, cmd, hp->cmd_len);
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 1ea34d6f5437..8e5013d9cad4 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -511,7 +511,7 @@ static void st_do_stats(struct scsi_tape *STp, struct request *req)
atomic64_dec(&STp->stats->in_flight);
}
-static void st_scsi_execute_end(struct request *req, int uptodate)
+static void st_scsi_execute_end(struct request *req, blk_status_t status)
{
struct st_request *SRpnt = req->end_io_data;
struct scsi_request *rq = scsi_req(req);
@@ -549,7 +549,6 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
if (IS_ERR(req))
return DRIVER_ERROR << 24;
rq = scsi_req(req);
- scsi_req_init(req);
req->rq_flags |= RQF_QUIET;
mdata->null_mapped = 1;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.