libata: support device-managed ZAC devices

Device-managed ZAC devices just set the zoned capabilities field
in INQUIRY byte 69 (cf ACS-4). This corresponds to the 'zoned'
field in the block device characteristics VPD page.
As this is only defined in SPC-5/SBC-4 we also need to update
the supported SCSI version descriptor.

Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Tested-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 10 insertions, 9 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 43403aa0801f..96abd42c9985 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2082,14 +2082,14 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
                 0x00,
                 0xA0,   /* SAM-5 (no version claimed) */
 
-                0x04,
-                0xC0,   /* SBC-3 (no version claimed) */
+                0x06,
+                0x00,   /* SBC-4 (no version claimed) */
 
-                0x04,
-                0x60,   /* SPC-4 (no version claimed) */
+                0x05,
+                0xC0,   /* SPC-5 (no version claimed) */
 
                 0x60,
-                0x20,   /* ZBC (no version claimed) */
+                0x24,   /* ZBC r05 */
         };
 
         u8 hdr[] = {
@@ -2109,10 +2109,8 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
             (args->dev->link->ap->pflags & ATA_PFLAG_EXTERNAL))
                 hdr[1] |= (1 << 7);
 
-        if (args->dev->class == ATA_DEV_ZAC) {
+        if (args->dev->class == ATA_DEV_ZAC)
                 hdr[0] = TYPE_ZBC;
-                hdr[2] = 0x6; /* ZBC is defined in SPC-4 */
-        }
 
         memcpy(rbuf, hdr, sizeof(hdr));
         memcpy(&rbuf[8], "ATA     ", 8);
@@ -2126,7 +2124,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
         if (rbuf[32] == 0 || rbuf[32] == ' ')
                 memcpy(&rbuf[32], "n/a ", 4);
 
-        if (args->dev->class == ATA_DEV_ZAC)
+        if (ata_id_zoned_cap(args->id) || args->dev->class == ATA_DEV_ZAC)
                 memcpy(rbuf + 58, versions_zbc, sizeof(versions_zbc));
         else
                 memcpy(rbuf + 58, versions, sizeof(versions));
@@ -2322,12 +2320,15 @@ static unsigned int ata_scsiop_inq_b1(struct ata_scsi_args *args, u8 *rbuf)
 {
         int form_factor = ata_id_form_factor(args->id);
         int media_rotation_rate = ata_id_rotation_rate(args->id);
+        u8 zoned = ata_id_zoned_cap(args->id);
 
         rbuf[1] = 0xb1;
         rbuf[3] = 0x3c;
         rbuf[4] = media_rotation_rate >> 8;
         rbuf[5] = media_rotation_rate;
         rbuf[7] = form_factor;
+        if (zoned)
+                rbuf[8] = (zoned << 4);
 
         return 0;
 }