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| author |   David Disseldorp <ddiss@suse.de> | 2016-12-23 11:37:54 +0100 |
|---|---|---|
| committer |   Bart Van Assche <bart.vanassche@sandisk.com> | 2017-01-10 08:40:43 -0800 |
| commit | 61c359194c46cbffec9a1f2c59c1c4011222ad84 (patch) | |
| tree | 4fdbf9486391c23786969431ff8c93180adf6431 /drivers/target/target_core_xcopy.c | |
| parent | target: add XCOPY target/segment desc sense codes (diff) | |
| download | linux-dev-61c359194c46cbffec9a1f2c59c1c4011222ad84.tar.xz linux-dev-61c359194c46cbffec9a1f2c59c1c4011222ad84.zip | |
target: use XCOPY TOO MANY TARGET DESCRIPTORS sense
spc4r37 6.4.3.4 states:
If the number of CSCD descriptors exceeds the allowed number, the copy
manager shall terminate the command with CHECK CONDITION status, with
the sense key set to ILLEGAL REQUEST, and the additional sense code
set to TOO MANY TARGET DESCRIPTORS.
LIO currently responds with INVALID FIELD IN PARAMETER LIST, which sees
it fail the libiscsi ExtendedCopy.DescrLimits test.
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>
Diffstat (limited to 'drivers/target/target_core_xcopy.c')
| -rw-r--r-- | drivers/target/target_core_xcopy.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index 37d5caebffa6..db265ad10fa4 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -201,9 +201,11 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, " multiple of %d\n", XCOPY_TARGET_DESC_LEN); return -EINVAL; } - if (tdll > 64) { + if (tdll > RCR_OP_MAX_TARGET_DESC_COUNT * XCOPY_TARGET_DESC_LEN) { pr_err("XCOPY target descriptor supports a maximum" " two src/dest descriptors, tdll: %hu too large..\n", tdll); + /* spc4r37 6.4.3.4 CSCD DESCRIPTOR LIST LENGTH field */ + *sense_ret = TCM_TOO_MANY_TARGET_DESCS; return -EINVAL; } /* |