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target: return UNSUPPORTED TARGET/SEGMENT DESC TYPE CODE sense 

Use UNSUPPORTED TARGET DESCRIPTOR TYPE CODE and UNSUPPORTED SEGMENT
DESCRIPTOR TYPE CODE additional sense codes if a descriptor type in an
XCOPY request is not supported, as specified in spc4r37 6.4.5 and 6.4.6.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
This commit is contained in:
David Disseldorp 2017-01-02 18:04:04 +01:00 committed by Bart Van Assche
parent 7d38706669
commit c243849720
1 changed files with 4 additions and 0 deletions
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4
drivers/target/target_core_xcopy.c
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@ -199,6 +199,7 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd,
if (offset != 0) {
pr_err("XCOPY target descriptor list length is not"
" multiple of %d\n", XCOPY_TARGET_DESC_LEN);
*sense_ret = TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE;
return -EINVAL;
}
if (tdll > RCR_OP_MAX_TARGET_DESC_COUNT * XCOPY_TARGET_DESC_LEN) {
@ -240,6 +241,7 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd,
default:
pr_err("XCOPY unsupported descriptor type code:"
" 0x%02x\n", desc[0]);
*sense_ret = TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE;
goto out;
}
}
@ -319,6 +321,7 @@ static int target_xcopy_parse_segment_descriptors(struct se_cmd *se_cmd,
if (offset != 0) {
pr_err("XCOPY segment descriptor list length is not"
" multiple of %d\n", XCOPY_SEGMENT_DESC_LEN);
*sense_ret = TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE;
return -EINVAL;
}
if (sdll > RCR_OP_MAX_SG_DESC_COUNT * XCOPY_SEGMENT_DESC_LEN) {
@ -346,6 +349,7 @@ static int target_xcopy_parse_segment_descriptors(struct se_cmd *se_cmd,
default:
pr_err("XCOPY unsupported segment descriptor"
"type: 0x%02x\n", desc[0]);
*sense_ret = TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE;
goto out;
}
}