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hw/nvme: fix missing DNR on compare failure 

Even if the host is somehow using compare to do compare-and-write, the
host should be notified immediately about the compare failure and not
have to wait for the driver to potentially retry the command.

Fixes: 0a384f923f ("hw/block/nvme: add compare command")
Reported-by: Jim Harris <james.r.harris@intel.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Klaus Jensen 2022-08-25 07:29:08 +02:00
parent 9b4f01812f
commit ca2a091802
1 changed files with 3 additions and 3 deletions
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6
hw/nvme/ctrl.c
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@ -2378,7 +2378,7 @@ static void nvme_compare_mdata_cb(void *opaque, int ret)
for (bufp = buf; mbufp < end; bufp += ns->lbaf.ms, mbufp += ns->lbaf.ms) {
if (memcmp(bufp + pil, mbufp + pil, ns->lbaf.ms - pil)) {
req->status = NVME_CMP_FAILURE;
req->status = NVME_CMP_FAILURE | NVME_DNR;
goto out;
}
}
@ -2387,7 +2387,7 @@ static void nvme_compare_mdata_cb(void *opaque, int ret)
}
if (memcmp(buf, ctx->mdata.bounce, ctx->mdata.iov.size)) {
req->status = NVME_CMP_FAILURE;
req->status = NVME_CMP_FAILURE | NVME_DNR;
goto out;
}
@ -2436,7 +2436,7 @@ static void nvme_compare_data_cb(void *opaque, int ret)
}
if (memcmp(buf, ctx->data.bounce, ctx->data.iov.size)) {
req->status = NVME_CMP_FAILURE;
req->status = NVME_CMP_FAILURE | NVME_DNR;
goto out;
}