summaryrefslogtreecommitdiff
path: root/drivers/ata/libata-scsi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ata/libata-scsi.c')
-rw-r--r--drivers/ata/libata-scsi.c202
1 files changed, 171 insertions, 31 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 49ba9834c715..d462c5a3a7ef 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available from
* - http://www.t10.org/
@@ -903,32 +903,32 @@ static void ata_dump_status(unsigned id, struct ata_taskfile *tf)
{
u8 stat = tf->command, err = tf->feature;
- printk(KERN_WARNING "ata%u: status=0x%02x { ", id, stat);
+ pr_warn("ata%u: status=0x%02x { ", id, stat);
if (stat & ATA_BUSY) {
- printk("Busy }\n"); /* Data is not valid in this case */
+ pr_cont("Busy }\n"); /* Data is not valid in this case */
} else {
- if (stat & ATA_DRDY) printk("DriveReady ");
- if (stat & ATA_DF) printk("DeviceFault ");
- if (stat & ATA_DSC) printk("SeekComplete ");
- if (stat & ATA_DRQ) printk("DataRequest ");
- if (stat & ATA_CORR) printk("CorrectedError ");
- if (stat & ATA_SENSE) printk("Sense ");
- if (stat & ATA_ERR) printk("Error ");
- printk("}\n");
+ if (stat & ATA_DRDY) pr_cont("DriveReady ");
+ if (stat & ATA_DF) pr_cont("DeviceFault ");
+ if (stat & ATA_DSC) pr_cont("SeekComplete ");
+ if (stat & ATA_DRQ) pr_cont("DataRequest ");
+ if (stat & ATA_CORR) pr_cont("CorrectedError ");
+ if (stat & ATA_SENSE) pr_cont("Sense ");
+ if (stat & ATA_ERR) pr_cont("Error ");
+ pr_cont("}\n");
if (err) {
- printk(KERN_WARNING "ata%u: error=0x%02x { ", id, err);
- if (err & ATA_ABORTED) printk("DriveStatusError ");
+ pr_warn("ata%u: error=0x%02x { ", id, err);
+ if (err & ATA_ABORTED) pr_cont("DriveStatusError ");
if (err & ATA_ICRC) {
if (err & ATA_ABORTED)
- printk("BadCRC ");
- else printk("Sector ");
+ pr_cont("BadCRC ");
+ else pr_cont("Sector ");
}
- if (err & ATA_UNC) printk("UncorrectableError ");
- if (err & ATA_IDNF) printk("SectorIdNotFound ");
- if (err & ATA_TRK0NF) printk("TrackZeroNotFound ");
- if (err & ATA_AMNF) printk("AddrMarkNotFound ");
- printk("}\n");
+ if (err & ATA_UNC) pr_cont("UncorrectableError ");
+ if (err & ATA_IDNF) pr_cont("SectorIdNotFound ");
+ if (err & ATA_TRK0NF) pr_cont("TrackZeroNotFound ");
+ if (err & ATA_AMNF) pr_cont("AddrMarkNotFound ");
+ pr_cont("}\n");
}
}
}
@@ -1059,8 +1059,7 @@ static void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk,
translate_done:
if (verbose)
- printk(KERN_ERR "ata%u: translated ATA stat/err 0x%02x/%02x "
- "to SCSI SK/ASC/ASCQ 0x%x/%02x/%02x\n",
+ pr_err("ata%u: translated ATA stat/err 0x%02x/%02x to SCSI SK/ASC/ASCQ 0x%x/%02x/%02x\n",
id, drv_stat, drv_err, *sk, *asc, *ascq);
return;
}
@@ -1322,6 +1321,9 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
blk_queue_flush_queueable(q, false);
+ if (dev->flags & ATA_DFLAG_TRUSTED)
+ sdev->security_supported = 1;
+
dev->sdev = sdev;
return 0;
}
@@ -3127,7 +3129,7 @@ ata_scsi_map_proto(u8 byte1)
* ata_scsi_pass_thru - convert ATA pass-thru CDB to taskfile
* @qc: command structure to be initialized
*
- * Handles either 12 or 16-byte versions of the CDB.
+ * Handles either 12, 16, or 32-byte versions of the CDB.
*
* RETURNS:
* Zero on success, non-zero on failure.
@@ -3139,13 +3141,19 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
struct ata_device *dev = qc->dev;
const u8 *cdb = scmd->cmnd;
u16 fp;
+ u16 cdb_offset = 0;
+
+ /* 7Fh variable length cmd means a ata pass-thru(32) */
+ if (cdb[0] == VARIABLE_LENGTH_CMD)
+ cdb_offset = 9;
- if ((tf->protocol = ata_scsi_map_proto(cdb[1])) == ATA_PROT_UNKNOWN) {
+ tf->protocol = ata_scsi_map_proto(cdb[1 + cdb_offset]);
+ if (tf->protocol == ATA_PROT_UNKNOWN) {
fp = 1;
goto invalid_fld;
}
- if (ata_is_ncq(tf->protocol) && (cdb[2] & 0x3) == 0)
+ if (ata_is_ncq(tf->protocol) && (cdb[2 + cdb_offset] & 0x3) == 0)
tf->protocol = ATA_PROT_NCQ_NODATA;
/* enable LBA */
@@ -3181,7 +3189,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
tf->lbah = cdb[12];
tf->device = cdb[13];
tf->command = cdb[14];
- } else {
+ } else if (cdb[0] == ATA_12) {
/*
* 12-byte CDB - incapable of extended commands.
*/
@@ -3194,6 +3202,30 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
tf->lbah = cdb[7];
tf->device = cdb[8];
tf->command = cdb[9];
+ } else {
+ /*
+ * 32-byte CDB - may contain extended command fields.
+ *
+ * If that is the case, copy the upper byte register values.
+ */
+ if (cdb[10] & 0x01) {
+ tf->hob_feature = cdb[20];
+ tf->hob_nsect = cdb[22];
+ tf->hob_lbal = cdb[16];
+ tf->hob_lbam = cdb[15];
+ tf->hob_lbah = cdb[14];
+ tf->flags |= ATA_TFLAG_LBA48;
+ } else
+ tf->flags &= ~ATA_TFLAG_LBA48;
+
+ tf->feature = cdb[21];
+ tf->nsect = cdb[23];
+ tf->lbal = cdb[19];
+ tf->lbam = cdb[18];
+ tf->lbah = cdb[17];
+ tf->device = cdb[24];
+ tf->command = cdb[25];
+ tf->auxiliary = get_unaligned_be32(&cdb[28]);
}
/* For NCQ commands copy the tag value */
@@ -3398,9 +3430,10 @@ static size_t ata_format_dsm_trim_descr(struct scsi_cmnd *cmd, u32 trmax,
*
* Translate a SCSI WRITE SAME command to be either a DSM TRIM command or
* an SCT Write Same command.
- * Based on WRITE SAME has the UNMAP flag
- * When set translate to DSM TRIM
- * When clear translate to SCT Write Same
+ * Based on WRITE SAME has the UNMAP flag:
+ *
+ * - When set translate to DSM TRIM
+ * - When clear translate to SCT Write Same
*/
static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
{
@@ -3563,6 +3596,11 @@ static unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf)
dev->class == ATA_DEV_ZAC)
supported = 3;
break;
+ case SECURITY_PROTOCOL_IN:
+ case SECURITY_PROTOCOL_OUT:
+ if (dev->flags & ATA_DFLAG_TRUSTED)
+ supported = 3;
+ break;
default:
break;
}
@@ -3909,7 +3947,7 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
}
/**
- * ata_scsiop_mode_select - Simulate MODE SELECT 6, 10 commands
+ * ata_scsi_mode_select_xlat - Simulate MODE SELECT 6, 10 commands
* @qc: Storage for translated ATA taskfile
*
* Converts a MODE SELECT command to an ATA SET FEATURES taskfile.
@@ -4067,6 +4105,99 @@ static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
return 1;
}
+static u8 ata_scsi_trusted_op(u32 len, bool send, bool dma)
+{
+ if (len == 0)
+ return ATA_CMD_TRUSTED_NONDATA;
+ else if (send)
+ return dma ? ATA_CMD_TRUSTED_SND_DMA : ATA_CMD_TRUSTED_SND;
+ else
+ return dma ? ATA_CMD_TRUSTED_RCV_DMA : ATA_CMD_TRUSTED_RCV;
+}
+
+static unsigned int ata_scsi_security_inout_xlat(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ const u8 *cdb = scmd->cmnd;
+ struct ata_taskfile *tf = &qc->tf;
+ u8 secp = cdb[1];
+ bool send = (cdb[0] == SECURITY_PROTOCOL_OUT);
+ u16 spsp = get_unaligned_be16(&cdb[2]);
+ u32 len = get_unaligned_be32(&cdb[6]);
+ bool dma = !(qc->dev->flags & ATA_DFLAG_PIO);
+
+ /*
+ * We don't support the ATA "security" protocol.
+ */
+ if (secp == 0xef) {
+ ata_scsi_set_invalid_field(qc->dev, scmd, 1, 0);
+ return 1;
+ }
+
+ if (cdb[4] & 7) { /* INC_512 */
+ if (len > 0xffff) {
+ ata_scsi_set_invalid_field(qc->dev, scmd, 6, 0);
+ return 1;
+ }
+ } else {
+ if (len > 0x01fffe00) {
+ ata_scsi_set_invalid_field(qc->dev, scmd, 6, 0);
+ return 1;
+ }
+
+ /* convert to the sector-based ATA addressing */
+ len = (len + 511) / 512;
+ }
+
+ tf->protocol = dma ? ATA_PROT_DMA : ATA_PROT_PIO;
+ tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR | ATA_TFLAG_LBA;
+ if (send)
+ tf->flags |= ATA_TFLAG_WRITE;
+ tf->command = ata_scsi_trusted_op(len, send, dma);
+ tf->feature = secp;
+ tf->lbam = spsp & 0xff;
+ tf->lbah = spsp >> 8;
+
+ if (len) {
+ tf->nsect = len & 0xff;
+ tf->lbal = len >> 8;
+ } else {
+ if (!send)
+ tf->lbah = (1 << 7);
+ }
+
+ ata_qc_set_pc_nbytes(qc);
+ return 0;
+}
+
+/**
+ * ata_scsi_var_len_cdb_xlat - SATL variable length CDB to Handler
+ * @qc: Command to be translated
+ *
+ * Translate a SCSI variable length CDB to specified commands.
+ * It checks a service action value in CDB to call corresponding handler.
+ *
+ * RETURNS:
+ * Zero on success, non-zero on failure
+ *
+ */
+static unsigned int ata_scsi_var_len_cdb_xlat(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ const u8 *cdb = scmd->cmnd;
+ const u16 sa = get_unaligned_be16(&cdb[8]);
+
+ /*
+ * if service action represents a ata pass-thru(32) command,
+ * then pass it to ata_scsi_pass_thru handler.
+ */
+ if (sa == ATA_32)
+ return ata_scsi_pass_thru(qc);
+
+ /* unsupported service action */
+ return 1;
+}
+
/**
* ata_get_xlat_func - check if SCSI to ATA translation is possible
* @dev: ATA device
@@ -4107,6 +4238,9 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
case ATA_16:
return ata_scsi_pass_thru;
+ case VARIABLE_LENGTH_CMD:
+ return ata_scsi_var_len_cdb_xlat;
+
case MODE_SELECT:
case MODE_SELECT_10:
return ata_scsi_mode_select_xlat;
@@ -4118,6 +4252,12 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
case ZBC_OUT:
return ata_scsi_zbc_out_xlat;
+ case SECURITY_PROTOCOL_IN:
+ case SECURITY_PROTOCOL_OUT:
+ if (!(dev->flags & ATA_DFLAG_TRUSTED))
+ break;
+ return ata_scsi_security_inout_xlat;
+
case START_STOP:
return ata_scsi_start_stop_xlat;
}
@@ -4385,7 +4525,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
shost->max_id = 16;
shost->max_lun = 1;
shost->max_channel = 1;
- shost->max_cmd_len = 16;
+ shost->max_cmd_len = 32;
/* Schedule policy is determined by ->qc_defer()
* callback and it needs to see every deferred qc.
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-16 03:46:37 +0300