From: "kwan.huen" <kwan.huen@samsung.com>
To: Matthew Wilcox <matthew.r.wilcox@intel.com>,
Keith Busch <keith.busch@intel.com>, Jens Axboe <axboe@fb.com>,
kwan.huen@samsung.com,
Dimitri John Ledkov <dimitri.ledkov@canonical.com>
Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-api@vger.kernel.org
Subject: [PATCH 1/2] added stream id write support
Date: Mon, 20 Apr 2015 18:47:42 -0700 [thread overview]
Message-ID: <1429580863-3451-2-git-send-email-kwan.huen@samsung.com> (raw)
In-Reply-To: <1429580863-3451-1-git-send-email-kwan.huen@samsung.com>
---
drivers/block/nvme-core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 85b8036..332341a 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -769,6 +769,9 @@ static int nvme_submit_iod(struct nvme_queue *nvmeq, struct nvme_iod *iod,
if (req->cmd_flags & REQ_RAHEAD)
dsmgmt |= NVME_RW_DSM_FREQ_PREFETCH;
+ if (rq_data_dir(req))
+ dsmgmt |= bio_get_streamid(req->bio) << 8;
+
cmnd = &nvmeq->sq_cmds[nvmeq->sq_tail];
memset(cmnd, 0, sizeof(*cmnd));
--
1.9.1
next prev parent reply other threads:[~2015-04-21 1:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-21 1:47 Write with Stream ID Support kwan.huen
2015-04-21 1:47 ` kwan.huen [this message]
2015-04-21 13:44 ` [PATCH 1/2] added stream id write support Jeff Moyer
2015-04-21 19:03 ` Hingkwan Huen
2015-04-21 1:47 ` [PATCH 2/2] added two nvme commands for open/close streams and garbage collection kwan.huen
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