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nvme/cuse: fix nblocks and block_size in rw path

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nblocks is zero based, so read path was missing the increment.

NVMe device that cuse represents can be of any block_size,
so rather than hardcoding 512 - actually verify it.
Both paths didn't request enough of a buffer from cuse.

Reported-by: Niklas Cassel
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I228dc2572bc94ecbcb913e950d912a7ab5be9434
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4037
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Tomasz Zawadzki 2020-09-02 11:06:07 -04:00
parent ef3f0d97ab
commit ccdbd2ed51
2 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/nvme/nvme_cuse.c
View File

@ -407,7 +407,7 @@ cuse_nvme_submit_io_read(struct cuse_device *cuse_device, fuse_req_t req, int cm
ctx->req = req;
ctx->lba = user_io->slba;
ctx->lba_count = user_io->nblocks;
ctx->lba_count = user_io->nblocks + 1;
ctx->data_len = ctx->lba_count * block_size;
ctx->data = spdk_zmalloc(ctx->data_len, 0x1000, NULL, SPDK_ENV_SOCKET_ID_ANY,
@ -454,7 +454,7 @@ cuse_nvme_submit_io(fuse_req_t req, int cmd, void *arg,
switch (user_io->opcode) {
case SPDK_NVME_OPC_READ:
out_iov.iov_base = (void *)user_io->addr;
out_iov.iov_len = (user_io->nblocks + 1) * 512;
out_iov.iov_len = (user_io->nblocks + 1) * block_size;
if (out_bufsz == 0) {
fuse_reply_ioctl_retry(req, in_iov, 1, &out_iov, 1);
return;
@ -465,7 +465,7 @@ cuse_nvme_submit_io(fuse_req_t req, int cmd, void *arg,
break;
case SPDK_NVME_OPC_WRITE:
in_iov[1].iov_base = (void *)user_io->addr;
in_iov[1].iov_len = (user_io->nblocks + 1) * 512;
in_iov[1].iov_len = (user_io->nblocks + 1) * block_size;
if (in_bufsz == sizeof(*user_io)) {
fuse_reply_ioctl_retry(req, in_iov, 2, NULL, 0);
return;

7
test/nvme/cuse/spdk_nvme_cli_cuse.sh
View File

@ -89,6 +89,13 @@ done
rm -Rf $testdir/match_files
# Verify read/write path
tr < /dev/urandom -dc "a-zA-Z0-9" | fold -w 512 | head -n 1 > $testdir/write_file
${NVME_CMD} write $ns --data-size=512 --data=$testdir/write_file
${NVME_CMD} read $ns --data-size=512 --data=$testdir/read_file
diff --ignore-trailing-space $testdir/write_file $testdir/read_file
rm -f $testdir/write_file $testdir/read_file
# Verify admin cmd when no data is transferred,
# by creating and deleting completion queue.
${NVME_CMD} admin-passthru $ctrlr -o 5 --cdw10=0x3ff0003 --cdw11=0x1 -r