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[PULL 1/2] hw/nvme: fix CRC64 for guard tag
From: |
Klaus Jensen |
Subject: |
[PULL 1/2] hw/nvme: fix CRC64 for guard tag |
Date: |
Tue, 8 Aug 2023 08:27:29 +0200 |
From: Ankit Kumar <ankit.kumar@samsung.com>
The nvme CRC64 generator expects the caller to pass inverted seed value.
Pass inverted crc value for metadata buffer.
Cc: qemu-stable@nongnu.org
Fixes: 44219b6029fc ("hw/nvme: 64-bit pi support")
Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
hw/nvme/dif.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/nvme/dif.c b/hw/nvme/dif.c
index 63c44c86ab55..01b19c33734e 100644
--- a/hw/nvme/dif.c
+++ b/hw/nvme/dif.c
@@ -115,7 +115,7 @@ static void nvme_dif_pract_generate_dif_crc64(NvmeNamespace
*ns, uint8_t *buf,
uint64_t crc = crc64_nvme(~0ULL, buf, ns->lbasz);
if (pil) {
- crc = crc64_nvme(crc, mbuf, pil);
+ crc = crc64_nvme(~crc, mbuf, pil);
}
dif->g64.guard = cpu_to_be64(crc);
@@ -246,7 +246,7 @@ static uint16_t nvme_dif_prchk_crc64(NvmeNamespace *ns,
NvmeDifTuple *dif,
uint64_t crc = crc64_nvme(~0ULL, buf, ns->lbasz);
if (pil) {
- crc = crc64_nvme(crc, mbuf, pil);
+ crc = crc64_nvme(~crc, mbuf, pil);
}
trace_pci_nvme_dif_prchk_guard_crc64(be64_to_cpu(dif->g64.guard), crc);
--
2.41.0