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SCSI fixes on 20231130

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3 small fixes, one in drivers.  The core changes are to the internal
 representation of flags in scsi_devices which removes space wasting
 bools in favour of single bit flags and to add a flag to force a
 runtime resume which is used by ATA devices.
 
 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:
 "Three small fixes, one in drivers.

  The core changes are to the internal representation of flags in
  scsi_devices which removes space wasting bools in favour of single bit
  flags and to add a flag to force a runtime resume which is used by ATA
  devices"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: Fix system start for ATA devices
  scsi: Change SCSI device boolean fields to single bit flags
  scsi: ufs: core: Clear cmd if abort succeeds in MCQ mode
This commit is contained in:
Linus Torvalds 2023-12-02 06:27:20 +09:00
commit ff4a9f4905
5 changed files with 40 additions and 9 deletions
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9
drivers/ata/libata-scsi.c
View file

@ -1055,9 +1055,14 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev)
* Ask the sd driver to issue START STOP UNIT on runtime suspend
* and resume and shutdown only. For system level suspend/resume,
* devices power state is handled directly by libata EH.
* Given that disks are always spun up on system resume, also
* make sure that the sd driver forces runtime suspended disks
* to be resumed to correctly reflect the power state of the
* device.
*/
sdev->manage_runtime_start_stop = true;
sdev->manage_shutdown = true;
sdev->manage_runtime_start_stop = 1;
sdev->manage_shutdown = 1;
sdev->force_runtime_start_on_system_start = 1;
}
/*

6
drivers/firewire/sbp2.c
View file

@ -1519,9 +1519,9 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev)
sdev->use_10_for_rw = 1;
if (sbp2_param_exclusive_login) {
sdev->manage_system_start_stop = true;
sdev->manage_runtime_start_stop = true;
sdev->manage_shutdown = true;
sdev->manage_system_start_stop = 1;
sdev->manage_runtime_start_stop = 1;
sdev->manage_shutdown = 1;
}
if (sdev->type == TYPE_ROM)

9
drivers/scsi/sd.c
View file

@ -3949,8 +3949,15 @@ static int sd_resume(struct device *dev, bool runtime)
static int sd_resume_system(struct device *dev)
{
if (pm_runtime_suspended(dev))
if (pm_runtime_suspended(dev)) {
struct scsi_disk *sdkp = dev_get_drvdata(dev);
struct scsi_device *sdp = sdkp ? sdkp->device : NULL;
if (sdp && sdp->force_runtime_start_on_system_start)
pm_request_resume(dev);
return 0;
}
return sd_resume(dev, false);
}

13
drivers/ufs/core/ufshcd.c
View file

@ -6444,11 +6444,24 @@ static bool ufshcd_abort_one(struct request *rq, void *priv)
struct scsi_device *sdev = cmd->device;
struct Scsi_Host *shost = sdev->host;
struct ufs_hba *hba = shost_priv(shost);
struct ufshcd_lrb *lrbp = &hba->lrb[tag];
struct ufs_hw_queue *hwq;
unsigned long flags;
*ret = ufshcd_try_to_abort_task(hba, tag);
dev_err(hba->dev, "Aborting tag %d / CDB %#02x %s\n", tag,
hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1,
*ret ? "failed" : "succeeded");
/* Release cmd in MCQ mode if abort succeeds */
if (is_mcq_enabled(hba) && (*ret == 0)) {
hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd));
spin_lock_irqsave(&hwq->cq_lock, flags);
if (ufshcd_cmd_inflight(lrbp->cmd))
ufshcd_release_scsi_cmd(hba, lrbp);
spin_unlock_irqrestore(&hwq->cq_lock, flags);
}
return *ret == 0;
}

12
include/scsi/scsi_device.h
View file

@ -167,19 +167,25 @@ struct scsi_device {
* power state for system suspend/resume (suspend to RAM and
* hibernation) operations.
*/
bool manage_system_start_stop;
unsigned manage_system_start_stop:1;
/*
* If true, let the high-level device driver (sd) manage the device
* power state for runtime device suspand and resume operations.
*/
bool manage_runtime_start_stop;
unsigned manage_runtime_start_stop:1;
/*
* If true, let the high-level device driver (sd) manage the device
* power state for system shutdown (power off) operations.
*/
bool manage_shutdown;
unsigned manage_shutdown:1;
/*
* If set and if the device is runtime suspended, ask the high-level
* device driver (sd) to force a runtime resume of the device.
*/
unsigned force_runtime_start_on_system_start:1;
unsigned removable:1;
unsigned changed:1; /* Data invalid due to media change */