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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-02 15:09:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-02 15:09:46 -0700
commita9c9a6f741cdaa2fa9ba24a790db8d07295761e3 (patch)
tree222aaa35ed4e66c2027845213251e2a3f491b5ba /drivers/scsi/sd.c
parent23852bec534a1633dc08f4df88b8493ae99953a9 (diff)
parent9b5ac8ab4e8bf5636d1d425aee68ddf45af12057 (diff)
downloadlinux-a9c9a6f741cdaa2fa9ba24a790db8d07295761e3.tar.gz
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
 "This series consists of the usual driver updates (ufs, qla2xxx,
  target, smartpqi, lpfc, mpt3sas).

  The core change causing the most churn was replacing the command
  request field request with a macro, allowing us to offset map to it
  and remove the redundant field; the same was also done for the tag
  field.

  The most impactful change is the final removal of scsi_ioctl, which
  has been deprecated for over a decade"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (293 commits)
  scsi: ufs: Fix ufshcd_request_sense_async() for Samsung KLUFG8RHDA-B2D1
  scsi: ufs: ufs-exynos: Fix static checker warning
  scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI
  scsi: lpfc: Use the proper SCSI midlayer interfaces for PI
  scsi: lpfc: Copyright updates for 14.0.0.1 patches
  scsi: lpfc: Update lpfc version to 14.0.0.1
  scsi: lpfc: Add bsg support for retrieving adapter cmf data
  scsi: lpfc: Add cmf_info sysfs entry
  scsi: lpfc: Add debugfs support for cm framework buffers
  scsi: lpfc: Add support for maintaining the cm statistics buffer
  scsi: lpfc: Add rx monitoring statistics
  scsi: lpfc: Add support for the CM framework
  scsi: lpfc: Add cmfsync WQE support
  scsi: lpfc: Add support for cm enablement buffer
  scsi: lpfc: Add cm statistics buffer support
  scsi: lpfc: Add EDC ELS support
  scsi: lpfc: Expand FPIN and RDF receive logging
  scsi: lpfc: Add MIB feature enablement support
  scsi: lpfc: Add SET_HOST_DATA mbox cmd to pass date/time info to firmware
  scsi: fc: Add EDC ELS definition
  ...
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c125
1 files changed, 51 insertions, 74 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 610ebba0d66e..cbd9999f93a6 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -110,6 +110,7 @@ static void sd_shutdown(struct device *);
 static int sd_suspend_system(struct device *);
 static int sd_suspend_runtime(struct device *);
 static int sd_resume(struct device *);
+static int sd_resume_runtime(struct device *);
 static void sd_rescan(struct device *);
 static blk_status_t sd_init_command(struct scsi_cmnd *SCpnt);
 static void sd_uninit_command(struct scsi_cmnd *SCpnt);
@@ -605,7 +606,7 @@ static const struct dev_pm_ops sd_pm_ops = {
 	.poweroff		= sd_suspend_system,
 	.restore		= sd_resume,
 	.runtime_suspend	= sd_suspend_runtime,
-	.runtime_resume		= sd_resume,
+	.runtime_resume		= sd_resume_runtime,
 };
 
 static struct scsi_driver sd_template = {
@@ -776,8 +777,9 @@ static unsigned int sd_prot_flag_mask(unsigned int prot_op)
 static unsigned char sd_setup_protect_cmnd(struct scsi_cmnd *scmd,
 					   unsigned int dix, unsigned int dif)
 {
-	struct bio *bio = scmd->request->bio;
-	unsigned int prot_op = sd_prot_op(rq_data_dir(scmd->request), dix, dif);
+	struct request *rq = scsi_cmd_to_rq(scmd);
+	struct bio *bio = rq->bio;
+	unsigned int prot_op = sd_prot_op(rq_data_dir(rq), dix, dif);
 	unsigned int protect = 0;
 
 	if (dix) {				/* DIX Type 0, 1, 2, 3 */
@@ -868,7 +870,7 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode)
 static blk_status_t sd_setup_unmap_cmnd(struct scsi_cmnd *cmd)
 {
 	struct scsi_device *sdp = cmd->device;
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 	u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
 	u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
@@ -904,7 +906,7 @@ static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd,
 		bool unmap)
 {
 	struct scsi_device *sdp = cmd->device;
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 	u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
 	u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
@@ -936,7 +938,7 @@ static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd,
 		bool unmap)
 {
 	struct scsi_device *sdp = cmd->device;
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 	u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
 	u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
@@ -966,7 +968,7 @@ static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd,
 
 static blk_status_t sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd)
 {
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_device *sdp = cmd->device;
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 	u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
@@ -1063,7 +1065,7 @@ out:
  **/
 static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
 {
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_device *sdp = cmd->device;
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 	struct bio *bio = rq->bio;
@@ -1112,7 +1114,7 @@ static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
 
 static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd)
 {
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 
 	/* flush requests don't perform I/O, zero the S/G table */
@@ -1210,7 +1212,7 @@ static blk_status_t sd_setup_rw6_cmnd(struct scsi_cmnd *cmd, bool write,
 
 static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
 {
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	struct scsi_device *sdp = cmd->device;
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
 	sector_t lba = sectors_to_logical(sdp, blk_rq_pos(rq));
@@ -1324,7 +1326,7 @@ fail:
 
 static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
 {
-	struct request *rq = cmd->request;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 
 	switch (req_op(rq)) {
 	case REQ_OP_DISCARD:
@@ -1370,7 +1372,7 @@ static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
 
 static void sd_uninit_command(struct scsi_cmnd *SCpnt)
 {
-	struct request *rq = SCpnt->request;
+	struct request *rq = scsi_cmd_to_rq(SCpnt);
 	u8 *cmnd;
 
 	if (rq->rq_flags & RQF_SPECIAL_PAYLOAD)
@@ -1530,11 +1532,11 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 }
 
 /**
- *	sd_ioctl_common - process an ioctl
+ *	sd_ioctl - process an ioctl
  *	@bdev: target block device
  *	@mode: FMODE_* mask
  *	@cmd: ioctl command number
- *	@p: this is third argument given to ioctl(2) system call.
+ *	@arg: this is third argument given to ioctl(2) system call.
  *	Often contains a pointer.
  *
  *	Returns 0 if successful (some ioctls return positive numbers on
@@ -1543,20 +1545,20 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *	Note: most ioctls are forward onto the block subsystem or further
  *	down in the scsi subsystem.
  **/
-static int sd_ioctl_common(struct block_device *bdev, fmode_t mode,
-			   unsigned int cmd, void __user *p)
+static int sd_ioctl(struct block_device *bdev, fmode_t mode,
+		    unsigned int cmd, unsigned long arg)
 {
 	struct gendisk *disk = bdev->bd_disk;
 	struct scsi_disk *sdkp = scsi_disk(disk);
 	struct scsi_device *sdp = sdkp->device;
+	void __user *p = (void __user *)arg;
 	int error;
     
 	SCSI_LOG_IOCTL(1, sd_printk(KERN_INFO, sdkp, "sd_ioctl: disk=%s, "
 				    "cmd=0x%x\n", disk->disk_name, cmd));
 
-	error = scsi_verify_blk_ioctl(bdev, cmd);
-	if (error < 0)
-		return error;
+	if (bdev_is_partition(bdev) && !capable(CAP_SYS_RAWIO))
+		return -ENOIOCTLCMD;
 
 	/*
 	 * If we are in the middle of error recovery, don't let anyone
@@ -1567,27 +1569,11 @@ static int sd_ioctl_common(struct block_device *bdev, fmode_t mode,
 	error = scsi_ioctl_block_when_processing_errors(sdp, cmd,
 			(mode & FMODE_NDELAY) != 0);
 	if (error)
-		goto out;
+		return error;
 
 	if (is_sed_ioctl(cmd))
 		return sed_ioctl(sdkp->opal_dev, cmd, p);
-
-	/*
-	 * Send SCSI addressing ioctls directly to mid level, send other
-	 * ioctls to block level and then onto mid level if they can't be
-	 * resolved.
-	 */
-	switch (cmd) {
-		case SCSI_IOCTL_GET_IDLUN:
-		case SCSI_IOCTL_GET_BUS_NUMBER:
-			error = scsi_ioctl(sdp, cmd, p);
-			break;
-		default:
-			error = scsi_cmd_blk_ioctl(bdev, mode, cmd, p);
-			break;
-	}
-out:
-	return error;
+	return scsi_ioctl(sdp, disk, mode, cmd, p);
 }
 
 static void set_media_not_present(struct scsi_disk *sdkp)
@@ -1770,34 +1756,6 @@ static void sd_rescan(struct device *dev)
 	sd_revalidate_disk(sdkp->disk);
 }
 
-static int sd_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned int cmd, unsigned long arg)
-{
-	void __user *p = (void __user *)arg;
-	int ret;
-
-	ret = sd_ioctl_common(bdev, mode, cmd, p);
-	if (ret != -ENOTTY)
-		return ret;
-
-	return scsi_ioctl(scsi_disk(bdev->bd_disk)->device, cmd, p);
-}
-
-#ifdef CONFIG_COMPAT
-static int sd_compat_ioctl(struct block_device *bdev, fmode_t mode,
-			   unsigned int cmd, unsigned long arg)
-{
-	void __user *p = compat_ptr(arg);
-	int ret;
-
-	ret = sd_ioctl_common(bdev, mode, cmd, p);
-	if (ret != -ENOTTY)
-		return ret;
-
-	return scsi_compat_ioctl(scsi_disk(bdev->bd_disk)->device, cmd, p);
-}
-#endif
-
 static char sd_pr_type(enum pr_type type)
 {
 	switch (type) {
@@ -1898,9 +1856,7 @@ static const struct block_device_operations sd_fops = {
 	.release		= sd_release,
 	.ioctl			= sd_ioctl,
 	.getgeo			= sd_getgeo,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl		= sd_compat_ioctl,
-#endif
+	.compat_ioctl		= blkdev_compat_ptr_ioctl,
 	.check_events		= sd_check_events,
 	.unlock_native_capacity	= sd_unlock_native_capacity,
 	.report_zones		= sd_zbc_report_zones,
@@ -1921,7 +1877,7 @@ static const struct block_device_operations sd_fops = {
  **/
 static void sd_eh_reset(struct scsi_cmnd *scmd)
 {
-	struct scsi_disk *sdkp = scsi_disk(scmd->request->rq_disk);
+	struct scsi_disk *sdkp = scsi_disk(scsi_cmd_to_rq(scmd)->rq_disk);
 
 	/* New SCSI EH run, reset gate variable */
 	sdkp->ignore_medium_access_errors = false;
@@ -1941,7 +1897,7 @@ static void sd_eh_reset(struct scsi_cmnd *scmd)
  **/
 static int sd_eh_action(struct scsi_cmnd *scmd, int eh_disp)
 {
-	struct scsi_disk *sdkp = scsi_disk(scmd->request->rq_disk);
+	struct scsi_disk *sdkp = scsi_disk(scsi_cmd_to_rq(scmd)->rq_disk);
 	struct scsi_device *sdev = scmd->device;
 
 	if (!scsi_device_online(sdev) ||
@@ -1982,7 +1938,7 @@ static int sd_eh_action(struct scsi_cmnd *scmd, int eh_disp)
 
 static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd)
 {
-	struct request *req = scmd->request;
+	struct request *req = scsi_cmd_to_rq(scmd);
 	struct scsi_device *sdev = scmd->device;
 	unsigned int transferred, good_bytes;
 	u64 start_lba, end_lba, bad_lba;
@@ -2037,8 +1993,8 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 	unsigned int sector_size = SCpnt->device->sector_size;
 	unsigned int resid;
 	struct scsi_sense_hdr sshdr;
-	struct scsi_disk *sdkp = scsi_disk(SCpnt->request->rq_disk);
-	struct request *req = SCpnt->request;
+	struct request *req = scsi_cmd_to_rq(SCpnt);
+	struct scsi_disk *sdkp = scsi_disk(req->rq_disk);
 	int sense_valid = 0;
 	int sense_deferred = 0;
 
@@ -2181,8 +2137,10 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 			 * doesn't have any media in it, don't bother
 			 * with any more polling.
 			 */
-			if (media_not_present(sdkp, &sshdr))
+			if (media_not_present(sdkp, &sshdr)) {
+				sd_printk(KERN_NOTICE, sdkp, "Media removed, stopped polling\n");
 				return;
+			}
 
 			if (the_result)
 				sense_valid = scsi_sense_valid(&sshdr);
@@ -3718,6 +3676,25 @@ static int sd_resume(struct device *dev)
 	return ret;
 }
 
+static int sd_resume_runtime(struct device *dev)
+{
+	struct scsi_disk *sdkp = dev_get_drvdata(dev);
+	struct scsi_device *sdp = sdkp->device;
+
+	if (sdp->ignore_media_change) {
+		/* clear the device's sense data */
+		static const u8 cmd[10] = { REQUEST_SENSE };
+
+		if (scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL,
+				 NULL, sdp->request_queue->rq_timeout, 1, 0,
+				 RQF_PM, NULL))
+			sd_printk(KERN_NOTICE, sdkp,
+				  "Failed to clear sense data\n");
+	}
+
+	return sd_resume(dev);
+}
+
 /**
  *	init_sd - entry point for this driver (both when built in or when
  *	a module).