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examples/fio_plugin: only enable Bit Bucket SGL with READ commands

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We only enable this feature for READ commands in the NVMe driver, so
also ignore the WRITE commands in fio plugin tool.

Change-Id: Iecf43326e1a2a3b3540a1391e09a33d2443bd546
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2730
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Changpeng Liu 2020-06-01 19:56:07 -04:00 committed by Tomasz Zawadzki
parent da0ddc351d
commit 38b80ba531
1 changed files with 1 additions and 1 deletions
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2
examples/nvme/fio_plugin/fio_plugin.c
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@ -777,7 +777,7 @@ spdk_nvme_io_next_sge(void *ref, void **address, uint32_t *length)
iov_len = g_spdk_sge_size;
}
if (fio_req->bit_bucket_data_len < g_spdk_bit_bucket_data_len) {
if ((fio_req->bit_bucket_data_len < g_spdk_bit_bucket_data_len) && (io_u->ddir == DDIR_READ)) {
assert(g_spdk_bit_bucket_data_len < io_u->xfer_buflen);
*address = (void *)UINT64_MAX;
bit_bucket_len = g_spdk_bit_bucket_data_len - fio_req->bit_bucket_data_len;