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SCSI fixes on 20220826

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10 fixes.  Of the three core changes, the two large ones are a
 complete reversion of the async rework and an ALUA timing rework (the
 latter shouldn't affect non-ALUA paths).  The remaining patches are
 all small and all but one in drivers.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Ten fixes.

  Of the three core changes, the two large ones are a complete reversion
  of the async rework and an ALUA timing rework (the latter shouldn't
  affect non-ALUA paths).

  The remaining patches are all small and all but one in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: Revert "Rework asynchronous resume support"
  scsi: core: Fix passthrough retry counter handling
  scsi: ufs: core: Reduce the power mode change timeout
  scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq
  scsi: ufs: host: ufs-exynos: Make fsd_ufs_drvs static
  scsi: megaraid_sas: Remove unnecessary kfree()
  scsi: megaraid_sas: Fix double kfree()
  scsi: ufs: core: Enable link lost interrupt
  scsi: core: Allow the ALUA transitioning state enough time
  scsi: qla2xxx: Disable ATIO interrupt coalesce for quad port ISP27XX
This commit is contained in:
Linus Torvalds 2022-08-26 10:29:56 -07:00
commit 5373081b99
10 changed files with 60 additions and 114 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/scsi/megaraid/megaraid_sas_base.c
View File

@ -7153,22 +7153,18 @@ static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
switch (instance->adapter_type) {
case MFI_SERIES:
if (megasas_alloc_mfi_ctrl_mem(instance))
goto fail;
return -ENOMEM;
break;
case AERO_SERIES:
case VENTURA_SERIES:
case THUNDERBOLT_SERIES:
case INVADER_SERIES:
if (megasas_alloc_fusion_context(instance))
goto fail;
return -ENOMEM;
break;
}
return 0;
fail:
kfree(instance->reply_map);
instance->reply_map = NULL;
return -ENOMEM;
}
/*

1
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -5310,7 +5310,6 @@ megasas_alloc_fusion_context(struct megasas_instance *instance)
if (!fusion->log_to_span) {
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
__func__, __LINE__);
kfree(instance->ctrl_context);
return -ENOMEM;
}
}

10
drivers/scsi/qla2xxx/qla_target.c
View File

@ -6935,14 +6935,8 @@ qlt_24xx_config_rings(struct scsi_qla_host *vha)
if (ha->flags.msix_enabled) {
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
if (IS_QLA2071(ha)) {
/* 4 ports Baker: Enable Interrupt Handshake */
icb->msix_atio = 0;
icb->firmware_options_2 |= cpu_to_le32(BIT_26);
} else {
icb->msix_atio = cpu_to_le16(msix->entry);
icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
}
icb->msix_atio = cpu_to_le16(msix->entry);
icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
ql_dbg(ql_dbg_init, vha, 0xf072,
"Registering ICB vector 0x%x for atio que.\n",
msix->entry);

47
drivers/scsi/scsi_lib.c
View File

@ -111,7 +111,7 @@ scsi_set_blocked(struct scsi_cmnd *cmd, int reason)
}
}
static void scsi_mq_requeue_cmd(struct scsi_cmnd *cmd)
static void scsi_mq_requeue_cmd(struct scsi_cmnd *cmd, unsigned long msecs)
{
struct request *rq = scsi_cmd_to_rq(cmd);
@ -121,7 +121,12 @@ static void scsi_mq_requeue_cmd(struct scsi_cmnd *cmd)
} else {
WARN_ON_ONCE(true);
}
blk_mq_requeue_request(rq, true);
if (msecs) {
blk_mq_requeue_request(rq, false);
blk_mq_delay_kick_requeue_list(rq->q, msecs);
} else
blk_mq_requeue_request(rq, true);
}
/**
@ -651,14 +656,6 @@ static unsigned int scsi_rq_err_bytes(const struct request *rq)
return bytes;
}
/* Helper for scsi_io_completion() when "reprep" action required. */
static void scsi_io_completion_reprep(struct scsi_cmnd *cmd,
struct request_queue *q)
{
/* A new command will be prepared and issued. */
scsi_mq_requeue_cmd(cmd);
}
static bool scsi_cmd_runtime_exceeced(struct scsi_cmnd *cmd)
{
struct request *req = scsi_cmd_to_rq(cmd);
@ -676,14 +673,21 @@ static bool scsi_cmd_runtime_exceeced(struct scsi_cmnd *cmd)
return false;
}
/*
* When ALUA transition state is returned, reprep the cmd to
* use the ALUA handler's transition timeout. Delay the reprep
* 1 sec to avoid aggressive retries of the target in that
* state.
*/
#define ALUA_TRANSITION_REPREP_DELAY 1000
/* Helper for scsi_io_completion() when special action required. */
static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
{
struct request_queue *q = cmd->device->request_queue;
struct request *req = scsi_cmd_to_rq(cmd);
int level = 0;
enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY,
ACTION_DELAYED_RETRY} action;
enum {ACTION_FAIL, ACTION_REPREP, ACTION_DELAYED_REPREP,
ACTION_RETRY, ACTION_DELAYED_RETRY} action;
struct scsi_sense_hdr sshdr;
bool sense_valid;
bool sense_current = true; /* false implies "deferred sense" */
@ -772,8 +776,8 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
action = ACTION_DELAYED_RETRY;
break;
case 0x0a: /* ALUA state transition */
blk_stat = BLK_STS_TRANSPORT;
fallthrough;
action = ACTION_DELAYED_REPREP;
break;
default:
action = ACTION_FAIL;
break;
@ -832,7 +836,10 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
return;
fallthrough;
case ACTION_REPREP:
scsi_io_completion_reprep(cmd, q);
scsi_mq_requeue_cmd(cmd, 0);
break;
case ACTION_DELAYED_REPREP:
scsi_mq_requeue_cmd(cmd, ALUA_TRANSITION_REPREP_DELAY);
break;
case ACTION_RETRY:
/* Retry the same command immediately */
@ -926,7 +933,7 @@ static int scsi_io_completion_nz_result(struct scsi_cmnd *cmd, int result,
* command block will be released and the queue function will be goosed. If we
* are not done then we have to figure out what to do next:
*
* a) We can call scsi_io_completion_reprep(). The request will be
* a) We can call scsi_mq_requeue_cmd(). The request will be
* unprepared and put back on the queue. Then a new command will
* be created for it. This should be used if we made forward
* progress, or if we want to switch from READ(10) to READ(6) for
@ -942,7 +949,6 @@ static int scsi_io_completion_nz_result(struct scsi_cmnd *cmd, int result,
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 = scsi_cmd_to_rq(cmd);
blk_status_t blk_stat = BLK_STS_OK;
@ -979,7 +985,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
* request just queue the command up again.
*/
if (likely(result == 0))
scsi_io_completion_reprep(cmd, q);
scsi_mq_requeue_cmd(cmd, 0);
else
scsi_io_completion_action(cmd, result);
}
@ -1542,7 +1548,6 @@ static blk_status_t scsi_prepare_cmd(struct request *req)
scsi_init_command(sdev, cmd);
cmd->eh_eflags = 0;
cmd->allowed = 0;
cmd->prot_type = 0;
cmd->prot_flags = 0;
cmd->submitter = 0;
@ -1593,6 +1598,8 @@ static blk_status_t scsi_prepare_cmd(struct request *req)
return ret;
}
/* Usually overridden by the ULP */
cmd->allowed = 0;
memset(cmd->cmnd, 0, sizeof(cmd->cmnd));
return scsi_cmd_to_driver(cmd)->init_command(cmd);
}

84
drivers/scsi/sd.c
View File

@ -103,7 +103,6 @@ static void sd_config_discard(struct scsi_disk *, unsigned int);
static void sd_config_write_same(struct scsi_disk *);
static int sd_revalidate_disk(struct gendisk *);
static void sd_unlock_native_capacity(struct gendisk *disk);
static void sd_start_done_work(struct work_struct *work);
static int sd_probe(struct device *);
static int sd_remove(struct device *);
static void sd_shutdown(struct device *);
@ -3471,7 +3470,6 @@ static int sd_probe(struct device *dev)
sdkp->max_retries = SD_MAX_RETRIES;
atomic_set(&sdkp->openers, 0);
atomic_set(&sdkp->device->ioerr_cnt, 0);
INIT_WORK(&sdkp->start_done_work, sd_start_done_work);
if (!sdp->request_queue->rq_timeout) {
if (sdp->type != TYPE_MOD)
@ -3594,69 +3592,12 @@ static void scsi_disk_release(struct device *dev)
kfree(sdkp);
}
/* Process sense data after a START command finished. */
static void sd_start_done_work(struct work_struct *work)
{
struct scsi_disk *sdkp = container_of(work, typeof(*sdkp),
start_done_work);
struct scsi_sense_hdr sshdr;
int res = sdkp->start_result;
if (res == 0)
return;
sd_print_result(sdkp, "Start/Stop Unit failed", res);
if (res < 0)
return;
if (scsi_normalize_sense(sdkp->start_sense_buffer,
sdkp->start_sense_len, &sshdr))
sd_print_sense_hdr(sdkp, &sshdr);
}
/* A START command finished. May be called from interrupt context. */
static void sd_start_done(struct request *req, blk_status_t status)
{
const struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(req);
struct scsi_disk *sdkp = scsi_disk(req->q->disk);
sdkp->start_result = scmd->result;
WARN_ON_ONCE(scmd->sense_len > SCSI_SENSE_BUFFERSIZE);
sdkp->start_sense_len = scmd->sense_len;
memcpy(sdkp->start_sense_buffer, scmd->sense_buffer,
ARRAY_SIZE(sdkp->start_sense_buffer));
WARN_ON_ONCE(!schedule_work(&sdkp->start_done_work));
}
/* Submit a START command asynchronously. */
static int sd_submit_start(struct scsi_disk *sdkp, u8 cmd[], u8 cmd_len)
{
struct scsi_device *sdev = sdkp->device;
struct request_queue *q = sdev->request_queue;
struct request *req;
struct scsi_cmnd *scmd;
req = scsi_alloc_request(q, REQ_OP_DRV_IN, BLK_MQ_REQ_PM);
if (IS_ERR(req))
return PTR_ERR(req);
scmd = blk_mq_rq_to_pdu(req);
scmd->cmd_len = cmd_len;
memcpy(scmd->cmnd, cmd, cmd_len);
scmd->allowed = sdkp->max_retries;
req->timeout = SD_TIMEOUT;
req->rq_flags |= RQF_PM | RQF_QUIET;
req->end_io = sd_start_done;
blk_execute_rq_nowait(req, /*at_head=*/true);
return 0;
}
static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
{
unsigned char cmd[6] = { START_STOP }; /* START_VALID */
struct scsi_sense_hdr sshdr;
struct scsi_device *sdp = sdkp->device;
int res;
if (start)
cmd[4] |= 1; /* START */
@ -3667,10 +3608,23 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
if (!scsi_device_online(sdp))
return -ENODEV;
/* Wait until processing of sense data has finished. */
flush_work(&sdkp->start_done_work);
res = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr,
SD_TIMEOUT, sdkp->max_retries, 0, RQF_PM, NULL);
if (res) {
sd_print_result(sdkp, "Start/Stop Unit failed", res);
if (res > 0 && scsi_sense_valid(&sshdr)) {
sd_print_sense_hdr(sdkp, &sshdr);
/* 0x3a is medium not present */
if (sshdr.asc == 0x3a)
res = 0;
}
}
return sd_submit_start(sdkp, cmd, sizeof(cmd));
/* SCSI error codes must not go to the generic layer */
if (res)
return -EIO;
return 0;
}
/*
@ -3697,8 +3651,6 @@ static void sd_shutdown(struct device *dev)
sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
sd_start_stop_device(sdkp, 0);
}
flush_work(&sdkp->start_done_work);
}
static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)

5
drivers/scsi/sd.h
View File

@ -150,11 +150,6 @@ struct scsi_disk {
unsigned urswrz : 1;
unsigned security : 1;
unsigned ignore_medium_access_errors : 1;
int start_result;
u32 start_sense_len;
u8 start_sense_buffer[SCSI_SENSE_BUFFERSIZE];
struct work_struct start_done_work;
};
#define to_scsi_disk(obj) container_of(obj, struct scsi_disk, disk_dev)

2
drivers/scsi/storvsc_drv.c
View File

@ -2012,7 +2012,7 @@ static int storvsc_probe(struct hv_device *device,
*/
host_dev->handle_error_wq =
alloc_ordered_workqueue("storvsc_error_wq_%d",
WQ_MEM_RECLAIM,
0,
host->host_no);
if (!host_dev->handle_error_wq) {
ret = -ENOMEM;

9
drivers/ufs/core/ufshcd.c
View File

@ -8741,6 +8741,8 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
struct scsi_device *sdp;
unsigned long flags;
int ret, retries;
unsigned long deadline;
int32_t remaining;
spin_lock_irqsave(hba->host->host_lock, flags);
sdp = hba->ufs_device_wlun;
@ -8773,9 +8775,14 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
* callbacks hence set the RQF_PM flag so that it doesn't resume the
* already suspended childs.
*/
deadline = jiffies + 10 * HZ;
for (retries = 3; retries > 0; --retries) {
ret = -ETIMEDOUT;
remaining = deadline - jiffies;
if (remaining <= 0)
break;
ret = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr,
START_STOP_TIMEOUT, 0, 0, RQF_PM, NULL);
remaining / HZ, 0, 0, RQF_PM, NULL);
if (!scsi_status_is_check_condition(ret) ||
!scsi_sense_valid(&sshdr) ||
sshdr.sense_key != UNIT_ATTENTION)

2
drivers/ufs/host/ufs-exynos.c
View File

@ -1711,7 +1711,7 @@ static struct exynos_ufs_uic_attr fsd_uic_attr = {
.pa_dbg_option_suite = 0x2E820183,
};
struct exynos_ufs_drv_data fsd_ufs_drvs = {
static const struct exynos_ufs_drv_data fsd_ufs_drvs = {
.uic_attr = &fsd_uic_attr,
.quirks = UFSHCD_QUIRK_PRDT_BYTE_GRAN |
UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR |

6
include/ufs/ufshci.h
View File

@ -135,11 +135,7 @@ static inline u32 ufshci_version(u32 major, u32 minor)
#define UFSHCD_UIC_MASK (UIC_COMMAND_COMPL | UFSHCD_UIC_PWR_MASK)
#define UFSHCD_ERROR_MASK (UIC_ERROR |\
DEVICE_FATAL_ERROR |\
CONTROLLER_FATAL_ERROR |\
SYSTEM_BUS_FATAL_ERROR |\
CRYPTO_ENGINE_FATAL_ERROR)
#define UFSHCD_ERROR_MASK (UIC_ERROR | INT_FATAL_ERRORS)
#define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR |\
CONTROLLER_FATAL_ERROR |\