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[PATCH] hw/nvme: set DNR on compare failure
From: |
Klaus Jensen |
Subject: |
[PATCH] hw/nvme: set DNR on compare failure |
Date: |
Thu, 25 Aug 2022 07:32:21 +0200 |
From: Klaus Jensen <k.jensen@samsung.com>
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.
Reported-by: Jim Harris <james.r.harris@intel.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
hw/nvme/ctrl.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 87aeba056499..299cbb1f2205 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -2242,7 +2242,7 @@ 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;
}
}
@@ -2251,7 +2251,7 @@ 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;
}
@@ -2300,7 +2300,7 @@ 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;
}
--
2.37.2
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