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hw/nvme: fix CRC64 for guard tag

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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: 44219b6029 ("hw/nvme: 64-bit pi support")
Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Ankit Kumar 2023-08-08 02:57:43 +05:30 committed by Klaus Jensen
parent 0450cf0897
commit dbdb13f931
1 changed files with 2 additions and 2 deletions
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4
hw/nvme/dif.c
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@ -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);