From: Klaus Jensen <its@irrelevant.dk>
To: qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-block@nongnu.org, Klaus Jensen <k.jensen@samsung.com>,
Max Reitz <mreitz@redhat.com>, Keith Busch <kbusch@kernel.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
Klaus Jensen <its@irrelevant.dk>
Subject: [PATCH v2 04/11] hw/nvme: save reftag when generating pi
Date: Thu, 17 Jun 2021 21:06:50 +0200 [thread overview]
Message-ID: <20210617190657.110823-5-its@irrelevant.dk> (raw)
In-Reply-To: <20210617190657.110823-1-its@irrelevant.dk>
From: Klaus Jensen <k.jensen@samsung.com>
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>
---
hw/nvme/nvme.h | 4 ++--
hw/nvme/ctrl.c | 10 +++++-----
hw/nvme/dif.c | 22 +++++++++++-----------
3 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h
index 19376570c91e..6e43f3f3d128 100644
--- a/hw/nvme/nvme.h
+++ b/hw/nvme/nvme.h
@@ -539,11 +539,11 @@ 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);
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 1626ed29c76b..07e40107e86b 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -1968,7 +1968,7 @@ static void nvme_verify_cb(void *opaque, int ret)
req->status = nvme_dif_check(ns, ctx->data.bounce, ctx->data.iov.size,
ctx->mdata.bounce, ctx->mdata.iov.size,
- ctrl, slba, apptag, appmask, reftag);
+ ctrl, slba, apptag, appmask, &reftag);
}
out:
@@ -2204,7 +2204,7 @@ static void nvme_copy_in_complete(NvmeRequest *req)
reftag = le32_to_cpu(range->reftag);
status = nvme_dif_check(ns, buf, len, mbuf, mlen, prinfor, slba,
- apptag, appmask, reftag);
+ apptag, appmask, &reftag);
if (status) {
goto invalid;
}
@@ -2227,10 +2227,10 @@ static void nvme_copy_in_complete(NvmeRequest *req)
}
nvme_dif_pract_generate_dif(ns, ctx->bounce, len, ctx->mbounce,
- mlen, apptag, reftag);
+ mlen, apptag, &reftag);
} else {
status = nvme_dif_check(ns, ctx->bounce, len, ctx->mbounce, mlen,
- prinfow, sdlba, apptag, appmask, reftag);
+ prinfow, sdlba, apptag, appmask, &reftag);
if (status) {
goto invalid;
}
@@ -2370,7 +2370,7 @@ static void nvme_compare_mdata_cb(void *opaque, int ret)
status = nvme_dif_check(ns, ctx->data.bounce, ctx->data.iov.size,
ctx->mdata.bounce, ctx->mdata.iov.size, ctrl,
- slba, apptag, appmask, reftag);
+ slba, apptag, appmask, &reftag);
if (status) {
req->status = status;
goto out;
diff --git a/hw/nvme/dif.c b/hw/nvme/dif.c
index 88efcbe9bd60..f5f86f1c26ad 100644
--- a/hw/nvme/dif.c
+++ b/hw/nvme/dif.c
@@ -41,7 +41,7 @@ static uint16_t crc_t10dif(uint16_t crc, const unsigned char *buffer,
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)
{
uint8_t *end = buf + len;
int16_t pil = 0;
@@ -51,7 +51,7 @@ void nvme_dif_pract_generate_dif(NvmeNamespace *ns, uint8_t *buf, size_t len,
}
trace_pci_nvme_dif_pract_generate_dif(len, ns->lbasz, ns->lbasz + pil,
- apptag, reftag);
+ apptag, *reftag);
for (; buf < end; buf += ns->lbasz, mbuf += ns->lbaf.ms) {
NvmeDifTuple *dif = (NvmeDifTuple *)(mbuf + pil);
@@ -63,10 +63,10 @@ void nvme_dif_pract_generate_dif(NvmeNamespace *ns, uint8_t *buf, size_t len,
dif->guard = cpu_to_be16(crc);
dif->apptag = cpu_to_be16(apptag);
- dif->reftag = cpu_to_be32(reftag);
+ dif->reftag = cpu_to_be32(*reftag);
if (NVME_ID_NS_DPS_TYPE(ns->id_ns.dps) != NVME_ID_NS_DPS_TYPE_3) {
- reftag++;
+ (*reftag)++;
}
}
}
@@ -132,13 +132,13 @@ static uint16_t nvme_dif_prchk(NvmeNamespace *ns, NvmeDifTuple *dif,
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)
{
uint8_t *end = buf + len;
int16_t pil = 0;
uint16_t status;
- status = nvme_check_prinfo(ns, ctrl, slba, reftag);
+ status = nvme_check_prinfo(ns, ctrl, slba, *reftag);
if (status) {
return status;
}
@@ -153,13 +153,13 @@ uint16_t nvme_dif_check(NvmeNamespace *ns, uint8_t *buf, size_t len,
NvmeDifTuple *dif = (NvmeDifTuple *)(mbuf + pil);
status = nvme_dif_prchk(ns, dif, buf, mbuf, pil, ctrl, apptag,
- appmask, reftag);
+ appmask, *reftag);
if (status) {
return status;
}
if (NVME_ID_NS_DPS_TYPE(ns->id_ns.dps) != NVME_ID_NS_DPS_TYPE_3) {
- reftag++;
+ (*reftag)++;
}
}
@@ -270,7 +270,7 @@ static void nvme_dif_rw_check_cb(void *opaque, int ret)
status = nvme_dif_check(ns, ctx->data.bounce, ctx->data.iov.size,
ctx->mdata.bounce, ctx->mdata.iov.size, ctrl,
- slba, apptag, appmask, reftag);
+ slba, apptag, appmask, &reftag);
if (status) {
req->status = status;
goto out;
@@ -478,11 +478,11 @@ uint16_t nvme_dif_rw(NvmeCtrl *n, NvmeRequest *req)
/* splice generated protection information into the buffer */
nvme_dif_pract_generate_dif(ns, ctx->data.bounce, ctx->data.iov.size,
ctx->mdata.bounce, ctx->mdata.iov.size,
- apptag, reftag);
+ apptag, &reftag);
} else {
status = nvme_dif_check(ns, ctx->data.bounce, ctx->data.iov.size,
ctx->mdata.bounce, ctx->mdata.iov.size, ctrl,
- slba, apptag, appmask, reftag);
+ slba, apptag, appmask, &reftag);
if (status) {
goto err;
}
--
2.32.0
next prev parent reply other threads:[~2021-06-17 19:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 19:06 [PATCH v2 00/11] hw/nvme: reimplement all multi-aio commands with custom aiocbs Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 01/11] hw/nvme: reimplement flush to allow cancellation Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 02/11] hw/nvme: add nvme_block_status_all helper Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 03/11] hw/nvme: reimplement dsm to allow cancellation Klaus Jensen
2021-06-17 19:06 ` Klaus Jensen [this message]
2021-06-17 19:06 ` [PATCH v2 05/11] hw/nvme: remove assert from nvme_get_zone_by_slba Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 06/11] hw/nvme: use prinfo directly in nvme_check_prinfo and nvme_dif_check Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 07/11] hw/nvme: add dw0/1 to the req completion trace event Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 08/11] hw/nvme: reimplement the copy command to allow aio cancellation Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 09/11] hw/nvme: reimplement zone reset to allow cancellation Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 10/11] hw/nvme: reimplement format nvm " Klaus Jensen
2021-06-17 19:06 ` [PATCH v2 11/11] Partially revert "hw/block/nvme: drain namespaces on sq deletion" Klaus Jensen
2021-06-28 16:00 ` Keith Busch
2021-06-28 16:33 ` Klaus Jensen
2021-06-25 18:47 ` [PATCH v2 00/11] hw/nvme: reimplement all multi-aio commands with custom aiocbs Keith Busch
2021-06-28 17:08 ` Klaus Jensen
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