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authorHannes Reinecke2020-11-16 19:40:39 +0100
committerPaolo Bonzini2021-03-06 11:41:54 +0100
commitdb66a15cb80f09da24a5311a3f3b8f0c1835bf71 (patch)
tree06f20faec9f5b7fba7dfdc4c2d05a4156922909a /scsi
parentscsi: Rename linux-specific SG_ERR codes to generic SCSI_HOST error codes (diff)
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scsi: Add mapping for generic SCSI_HOST status to sense codes
As we don't have a driver-specific mapping (yet) we should provide for a detailed mapping from host_status to SCSI sense codes. Signed-off-by: Hannes Reinecke <hare@suse.de> Message-Id: <20201116184041.60465-6-hare@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'scsi')
-rw-r--r--scsi/utils.c65
1 files changed, 58 insertions, 7 deletions
diff --git a/scsi/utils.c b/scsi/utils.c
index 4d994b6d56..28eb32746e 100644
--- a/scsi/utils.c
+++ b/scsi/utils.c
@@ -257,6 +257,21 @@ const struct SCSISense sense_code_LUN_COMM_FAILURE = {
.key = ABORTED_COMMAND, .asc = 0x08, .ascq = 0x00
};
+/* Command aborted, LUN does not respond to selection */
+const struct SCSISense sense_code_LUN_NOT_RESPONDING = {
+ .key = ABORTED_COMMAND, .asc = 0x05, .ascq = 0x00
+};
+
+/* Command aborted, Command Timeout during processing */
+const struct SCSISense sense_code_COMMAND_TIMEOUT = {
+ .key = ABORTED_COMMAND, .asc = 0x2e, .ascq = 0x02
+};
+
+/* Command aborted, Commands cleared by device server */
+const struct SCSISense sense_code_COMMAND_ABORTED = {
+ .key = ABORTED_COMMAND, .asc = 0x2f, .ascq = 0x02
+};
+
/* Medium Error, Unrecovered read error */
const struct SCSISense sense_code_READ_ERROR = {
.key = MEDIUM_ERROR, .asc = 0x11, .ascq = 0x00
@@ -605,6 +620,45 @@ int scsi_sense_from_errno(int errno_value, SCSISense *sense)
}
}
+int scsi_sense_from_host_status(uint8_t host_status,
+ SCSISense *sense)
+{
+ switch (host_status) {
+ case SCSI_HOST_NO_LUN:
+ *sense = SENSE_CODE(LUN_NOT_RESPONDING);
+ return CHECK_CONDITION;
+ case SCSI_HOST_BUSY:
+ return BUSY;
+ case SCSI_HOST_TIME_OUT:
+ *sense = SENSE_CODE(COMMAND_TIMEOUT);
+ return CHECK_CONDITION;
+ case SCSI_HOST_BAD_RESPONSE:
+ *sense = SENSE_CODE(LUN_COMM_FAILURE);
+ return CHECK_CONDITION;
+ case SCSI_HOST_ABORTED:
+ *sense = SENSE_CODE(COMMAND_ABORTED);
+ return CHECK_CONDITION;
+ case SCSI_HOST_RESET:
+ *sense = SENSE_CODE(RESET);
+ return CHECK_CONDITION;
+ case SCSI_HOST_TRANSPORT_DISRUPTED:
+ *sense = SENSE_CODE(I_T_NEXUS_LOSS);
+ return CHECK_CONDITION;
+ case SCSI_HOST_TARGET_FAILURE:
+ *sense = SENSE_CODE(TARGET_FAILURE);
+ return CHECK_CONDITION;
+ case SCSI_HOST_RESERVATION_ERROR:
+ return RESERVATION_CONFLICT;
+ case SCSI_HOST_ALLOCATION_FAILURE:
+ *sense = SENSE_CODE(SPACE_ALLOC_FAILED);
+ return CHECK_CONDITION;
+ case SCSI_HOST_MEDIUM_ERROR:
+ *sense = SENSE_CODE(READ_ERROR);
+ return CHECK_CONDITION;
+ }
+ return GOOD;
+}
+
#ifdef CONFIG_LINUX
int sg_io_sense_from_errno(int errno_value, struct sg_io_hdr *io_hdr,
SCSISense *sense)
@@ -612,14 +666,11 @@ int sg_io_sense_from_errno(int errno_value, struct sg_io_hdr *io_hdr,
if (errno_value != 0) {
return scsi_sense_from_errno(errno_value, sense);
} else {
- if (io_hdr->host_status == SCSI_HOST_NO_LUN ||
- io_hdr->host_status == SCSI_HOST_BUSY ||
- io_hdr->host_status == SCSI_HOST_TIME_OUT ||
- (io_hdr->driver_status & SG_ERR_DRIVER_TIMEOUT)) {
+ int status = scsi_sense_from_host_status(io_hdr->host_status, sense);
+ if (status) {
+ return status;
+ } else if (io_hdr->driver_status & SG_ERR_DRIVER_TIMEOUT) {
return BUSY;
- } else if (io_hdr->host_status) {
- *sense = SENSE_CODE(I_T_NEXUS_LOSS);
- return CHECK_CONDITION;
} else if (io_hdr->status) {
return io_hdr->status;
} else if (io_hdr->driver_status & SG_ERR_DRIVER_SENSE) {