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bdev/malloc: use appends for write requests

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Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Ief6c873a5f65274a25b67bc3f2811d8f3e4a33b3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17200
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Konrad Sztyber 2023-03-09 14:41:16 +01:00
parent ad154aaef2
commit 06fd87e4e9
2 changed files with 18 additions and 20 deletions
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34
module/bdev/malloc/bdev_malloc.c
View File

@ -282,8 +282,7 @@ bdev_malloc_writev(struct malloc_disk *mdisk, struct spdk_io_channel *ch,
struct malloc_task *task, struct spdk_bdev_io *bdev_io)
{
uint64_t len, offset, md_offset;
int i, res = 0;
void *dst;
int res = 0;
size_t md_len;
len = bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen;
@ -295,27 +294,26 @@ bdev_malloc_writev(struct malloc_disk *mdisk, struct spdk_io_channel *ch,
return;
}
task->status = SPDK_BDEV_IO_STATUS_SUCCESS;
task->num_outstanding = 0;
task->iov.iov_base = mdisk->malloc_buf + offset;
task->iov.iov_len = len;
SPDK_DEBUGLOG(bdev_malloc, "wrote %zu bytes to offset %#" PRIx64 ", iovcnt=%d\n",
len, offset, bdev_io->u.bdev.iovcnt);
dst = mdisk->malloc_buf + offset;
task->status = SPDK_BDEV_IO_STATUS_SUCCESS;
task->num_outstanding = 0;
for (i = 0; i < bdev_io->u.bdev.iovcnt; i++) {
task->num_outstanding++;
res = spdk_accel_submit_copy(ch, dst, bdev_io->u.bdev.iovs[i].iov_base,
bdev_io->u.bdev.iovs[i].iov_len, 0, malloc_done, task);
if (res != 0) {
malloc_done(task, res);
break;
}
dst += bdev_io->u.bdev.iovs[i].iov_len;
task->num_outstanding++;
res = spdk_accel_append_copy(&bdev_io->u.bdev.accel_sequence, ch, &task->iov, 1, NULL, NULL,
bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt,
bdev_io->u.bdev.memory_domain,
bdev_io->u.bdev.memory_domain_ctx, 0, NULL, NULL);
if (spdk_unlikely(res != 0)) {
malloc_sequence_fail(task, res);
return;
}
spdk_accel_sequence_finish(bdev_io->u.bdev.accel_sequence, malloc_sequence_done, task);
if (bdev_io->u.bdev.md_buf == NULL) {
return;
}

4
test/bdev/chaining.sh
View File

@ -79,7 +79,7 @@ update_stats
# Write a single 64K request and check the stats
dd if=/dev/urandom of="$input" bs=1K count=64
spdk_dd --if "$input" --ob Nvme0n1 --bs $((64 * 1024)) --count 1
(($(get_stat sequence_executed) == stats[sequence_executed] + 1))
(($(get_stat sequence_executed) == stats[sequence_executed] + 2))
(($(get_stat executed encrypt) == stats[encrypt_executed] + 2))
(($(get_stat executed decrypt) == stats[decrypt_executed]))
# There's still one copy performed by the malloc bdev
@ -98,7 +98,7 @@ update_stats
# Now do the same using 4K requests
spdk_dd --if "$input" --ob Nvme0n1 --bs 4096 --count 16
(($(get_stat sequence_executed) == stats[sequence_executed] + 16))
(($(get_stat sequence_executed) == stats[sequence_executed] + 32))
(($(get_stat executed encrypt) == stats[encrypt_executed] + 32))
(($(get_stat executed decrypt) == stats[decrypt_executed]))
(($(get_stat executed copy) == stats[copy_executed] + 16))