summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/sd.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index b1933041da39..1f5d92a25a49 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -871,11 +871,11 @@ static int sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
cmd->allowed = SD_MAX_RETRIES;
/*
- * For WRITE_SAME the data transferred in the DATA IN buffer is
+ * For WRITE SAME the data transferred via the DATA OUT buffer is
* different from the amount of data actually written to the target.
*
- * We set up __data_len to the amount of data transferred from the
- * DATA IN buffer so that blk_rq_map_sg set up the proper S/G list
+ * We set up __data_len to the amount of data transferred via the
+ * DATA OUT buffer so that blk_rq_map_sg sets up the proper S/G list
* to transfer a single sector of data first, but then reset it to
* the amount of data to be written right after so that the I/O path
* knows how much to actually write.
@@ -2600,7 +2600,8 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
if (sdp->broken_fua) {
sd_first_printk(KERN_NOTICE, sdkp, "Disabling FUA\n");
sdkp->DPOFUA = 0;
- } else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw) {
+ } else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw &&
+ !sdkp->device->use_16_for_rw) {
sd_first_printk(KERN_NOTICE, sdkp,
"Uses READ/WRITE(6), disabling FUA\n");
sdkp->DPOFUA = 0;
@@ -2783,13 +2784,21 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q);
}
- sdkp->zoned = (buffer[8] >> 4) & 3;
- if (sdkp->zoned == 1)
- q->limits.zoned = BLK_ZONED_HA;
- else if (sdkp->device->type == TYPE_ZBC)
+ if (sdkp->device->type == TYPE_ZBC) {
+ /* Host-managed */
q->limits.zoned = BLK_ZONED_HM;
- else
- q->limits.zoned = BLK_ZONED_NONE;
+ } else {
+ sdkp->zoned = (buffer[8] >> 4) & 3;
+ if (sdkp->zoned == 1)
+ /* Host-aware */
+ q->limits.zoned = BLK_ZONED_HA;
+ else
+ /*
+ * Treat drive-managed devices as
+ * regular block devices.
+ */
+ q->limits.zoned = BLK_ZONED_NONE;
+ }
if (blk_queue_is_zoned(q) && sdkp->first_scan)
sd_printk(KERN_NOTICE, sdkp, "Host-%s zoned block device\n",
q->limits.zoned == BLK_ZONED_HM ? "managed" : "aware");