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hw/nvme: save reftag when generating pi

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Prepare nvme_dif_pract_generate_dif() and nvme_dif_check() to be
callable in smaller increments by making the reftag a pointer parameter
updated by the function.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Klaus Jensen 2021-06-17 21:06:50 +02:00
parent d7d1474fd8
commit 0ca5c3ccac
3 changed files with 18 additions and 18 deletions
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4
hw/nvme/nvme.h
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@ -542,11 +542,11 @@ uint16_t nvme_dif_mangle_mdata(NvmeNamespace *ns, uint8_t *mbuf, size_t mlen,
uint64_t slba);
void nvme_dif_pract_generate_dif(NvmeNamespace *ns, uint8_t *buf, size_t len,
uint8_t *mbuf, size_t mlen, uint16_t apptag,
uint32_t reftag);
uint32_t *reftag);
uint16_t nvme_dif_check(NvmeNamespace *ns, uint8_t *buf, size_t len,
uint8_t *mbuf, size_t mlen, uint16_t ctrl,
uint64_t slba, uint16_t apptag,
uint16_t appmask, uint32_t reftag);
uint16_t appmask, uint32_t *reftag);
uint16_t nvme_dif_rw(NvmeCtrl *n, NvmeRequest *req);