ZAC drives implement a 'zac management out' command template,
which maps onto the ZBC OUT command.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/ata/libata-eh.c | 1 +
drivers/ata/libata-scsi.c | 73 +++++++++++++++++++++++++++++++++++++++++++
include/linux/ata.h | 7 +++++
include/trace/events/libata.h | 1 +
4 files changed, 82 insertions(+)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index e947bd5..ee984f9 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2481,6 +2481,7 @@ const char *ata_get_cmd_descript(u8 command)
{ ATA_CMD_REQ_SENSE_DATA, "REQUEST SENSE DATA EXT" },
{ ATA_CMD_SANITIZE_DEVICE, "SANITIZE DEVICE" },
{ ATA_CMD_ZAC_MGMT_IN, "ZAC MANAGEMENT IN" },
+ { ATA_CMD_ZAC_MGMT_OUT, "ZAC MANAGEMENT OUT" },
{ ATA_CMD_READ_LONG, "READ LONG (with retries)" },
{ ATA_CMD_READ_LONG_ONCE, "READ LONG (without retries)" },
{ ATA_CMD_WRITE_LONG, "WRITE LONG (with retries)" },
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 21c2b40..6db2aaf 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3451,6 +3451,76 @@ invalid_param_len:
return 1;
}
+static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc)
+{
+ struct ata_taskfile *tf = &qc->tf;
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ struct ata_device *dev = qc->dev;
+ const u8 *cdb = scmd->cmnd;
+ u8 reset_all, sa;
+ u64 block;
+ u32 n_block;
+ u16 fp = (u16)-1;
+
+ if (unlikely(scmd->cmd_len < 16)) {
+ fp = 15;
+ goto invalid_fld;
+ }
+
+ /*
+ * The service action definition got moved from
+ * 0x00 to 0x04 with zbc-r02, so accept both.
+ */
+ sa = cdb[1] & 0x1f;
+ /* Compatibility with ZBC r01 */
+ if (!sa)
+ sa = ZO_RESET_WRITE_POINTER;
+ if (sa != ZO_RESET_WRITE_POINTER) {
+ fp = 1;
+ goto invalid_fld;
+ }
+
+ scsi_16_lba_len(cdb, &block, &n_block);
+ if (n_block) {
+ /*
+ * ZAC MANAGEMENT OUT doesn't define any length
+ */
+ goto invalid_param_len;
+ }
+ if (block > dev->n_sectors)
+ goto out_of_range;
+
+ reset_all = cdb[14] & 0x1;
+
+ tf->protocol = ATA_PROT_NODATA;
+ tf->command = ATA_CMD_ZAC_MGMT_OUT;
+ tf->feature = sa;
+ tf->hob_feature = reset_all & 0x1;
+
+ tf->lbah = (block >> 16) & 0xff;
+ tf->lbam = (block >> 8) & 0xff;
+ tf->lbal = block & 0xff;
+ tf->hob_lbah = (block >> 40) & 0xff;
+ tf->hob_lbam = (block >> 32) & 0xff;
+ tf->hob_lbal = (block >> 24) & 0xff;
+ tf->device = ATA_LBA;
+ tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48;
+
+ return 0;
+
+ invalid_fld:
+ ata_scsi_set_invalid_field(qc->dev, scmd, fp, 0xff);
+ return 1;
+ out_of_range:
+ /* "Logical Block Address out of range" */
+ ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x21, 0x00);
+ return 1;
+invalid_param_len:
+ /* "Parameter list length error" */
+ ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
+ return 1;
+}
+
/**
* ata_mselect_caching - Simulate MODE SELECT for caching info page
* @qc: Storage for translated ATA taskfile
@@ -3767,6 +3837,9 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
case ZBC_IN:
return ata_scsi_zbc_in_xlat;
+ case ZBC_OUT:
+ return ata_scsi_zbc_out_xlat;
+
case START_STOP:
return ata_scsi_start_stop_xlat;
}
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 2e4a6af..eef9d80 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -302,6 +302,7 @@ enum {
ATA_CMD_REQ_SENSE_DATA = 0x0B,
ATA_CMD_SANITIZE_DEVICE = 0xB4,
ATA_CMD_ZAC_MGMT_IN = 0x4A,
+ ATA_CMD_ZAC_MGMT_OUT = 0x9F,
/* marked obsolete in the ATA/ATAPI-7 spec */
ATA_CMD_RESTORE = 0x10,
@@ -313,6 +314,12 @@ enum {
/* Subcmds for ATA_CMD_ZAC_MGMT_IN */
ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES = 0x00,
+ /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */
+ ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE = 0x01,
+ ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE = 0x02,
+ ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE = 0x03,
+ ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER = 0x04,
+
/* READ_LOG_EXT pages */
ATA_LOG_SATA_NCQ = 0x10,
ATA_LOG_NCQ_SEND_RECV = 0x13,
diff --git a/include/trace/events/libata.h b/include/trace/events/libata.h
index 02ec4e5..24dcd43 100644
--- a/include/trace/events/libata.h
+++ b/include/trace/events/libata.h
@@ -98,6 +98,7 @@
ata_opcode_name(ATA_CMD_REQ_SENSE_DATA), \
ata_opcode_name(ATA_CMD_SANITIZE_DEVICE), \
ata_opcode_name(ATA_CMD_ZAC_MGMT_IN), \
+ ata_opcode_name(ATA_CMD_ZAC_MGMT_OUT), \
ata_opcode_name(ATA_CMD_RESTORE), \
ata_opcode_name(ATA_CMD_READ_LONG), \
ata_opcode_name(ATA_CMD_READ_LONG_ONCE), \
--
1.8.5.6
--
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