From: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
To: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Alex Estrin <alex.estrin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: [PATCH v3 06/21] IB/srpt: Introduce target_reverse_dma_direction()
Date: Thu, 4 Feb 2016 14:48:06 -0800 [thread overview]
Message-ID: <56B3D526.9000103@sandisk.com> (raw)
In-Reply-To: <56B3D453.7030409-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Use the function target_reverse_dma_direction() instead of
reimplementing it.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Reviewed-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Reviewed-by: Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: Alex Estrin <alex.estrin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/ulp/srpt/ib_srpt.c | 17 ++---------------
1 file changed, 2 insertions(+), 15 deletions(-)
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index bd98efc..c50f05c 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -96,19 +96,6 @@ static int srpt_queue_status(struct se_cmd *cmd);
static void srpt_recv_done(struct ib_cq *cq, struct ib_wc *wc);
static void srpt_send_done(struct ib_cq *cq, struct ib_wc *wc);
-/**
- * opposite_dma_dir() - Swap DMA_TO_DEVICE and DMA_FROM_DEVICE.
- */
-static inline
-enum dma_data_direction opposite_dma_dir(enum dma_data_direction dir)
-{
- switch (dir) {
- case DMA_TO_DEVICE: return DMA_FROM_DEVICE;
- case DMA_FROM_DEVICE: return DMA_TO_DEVICE;
- default: return dir;
- }
-}
-
static enum rdma_ch_state
srpt_set_ch_state(struct srpt_rdma_ch *ch, enum rdma_ch_state new_state)
{
@@ -1049,7 +1036,7 @@ static void srpt_unmap_sg_to_ib_sge(struct srpt_rdma_ch *ch,
dir = ioctx->cmd.data_direction;
BUG_ON(dir == DMA_NONE);
ib_dma_unmap_sg(ch->sport->sdev->device, sg, ioctx->sg_cnt,
- opposite_dma_dir(dir));
+ target_reverse_dma_direction(&ioctx->cmd));
ioctx->mapped_sg_count = 0;
}
}
@@ -1086,7 +1073,7 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
ioctx->sg_cnt = sg_cnt = cmd->t_data_nents;
count = ib_dma_map_sg(ch->sport->sdev->device, sg, sg_cnt,
- opposite_dma_dir(dir));
+ target_reverse_dma_direction(cmd));
if (unlikely(!count))
return -EAGAIN;
--
2.7.0
--
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next prev parent reply other threads:[~2016-02-04 22:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 22:44 [PATCH v3 00/21] IB/srpt patches for Linux kernel v4.6 Bart Van Assche
[not found] ` <56B3D453.7030409-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-04 22:45 ` [PATCH v3 01/21] IB/srpt: Simplify srpt_handle_tsk_mgmt() Bart Van Assche
2016-02-04 22:46 ` [PATCH v3 02/21] IB/srpt: Add parentheses around sizeof argument Bart Van Assche
2016-02-04 22:46 ` [PATCH v3 03/21] IB/srpt: Remove struct srpt_node_acl Bart Van Assche
[not found] ` <56B3D4D7.8060800-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-09 13:15 ` Christoph Hellwig
[not found] ` <20160209131507.GA25849-jcswGhMUV9g@public.gmane.org>
2016-02-09 15:03 ` Bart Van Assche
[not found] ` <56B9FFD8.2040809-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-09 15:08 ` Christoph Hellwig
[not found] ` <20160209150854.GA27614-jcswGhMUV9g@public.gmane.org>
2016-02-09 15:13 ` Bart Van Assche
2016-02-04 22:47 ` [PATCH v3 04/21] IB/srpt: Inline srpt_sdev_name() Bart Van Assche
2016-02-04 22:47 ` [PATCH v3 05/21] IB/srpt: Inline srpt_get_ch_state() Bart Van Assche
2016-02-04 22:48 ` Bart Van Assche [this message]
2016-02-04 22:48 ` [PATCH v3 07/21] IB/srpt: Use scsilun_to_int() Bart Van Assche
2016-02-04 22:49 ` [PATCH v3 08/21] IB/srpt: Simplify channel state management Bart Van Assche
2016-02-04 22:49 ` [PATCH v3 09/21] IB/srpt: Simplify srpt_shutdown_session() Bart Van Assche
2016-02-04 22:50 ` [PATCH v3 10/21] IB/srpt: Fix srpt_close_session() Bart Van Assche
2016-02-04 22:51 ` [PATCH v3 11/21] IB/srpt: Fix srpt_handle_cmd() error paths Bart Van Assche
2016-02-04 22:52 ` [PATCH v3 12/21] IB/srpt: Fix how aborted commands are processed Bart Van Assche
2016-02-04 22:55 ` [PATCH v3 13/21] IB/srpt: Inline trivial CM callback functions Bart Van Assche
2016-02-04 22:56 ` [PATCH v3 14/21] IB/srpt: Eliminate srpt_find_channel() Bart Van Assche
2016-02-04 22:57 ` [PATCH v3 15/21] IB/srpt: Log private data associated with REJ Bart Van Assche
2016-02-04 22:57 ` [PATCH v3 16/21] IB/srpt: Use a mutex to protect the channel list Bart Van Assche
[not found] ` <56B3D75B.3030202-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-02-09 13:16 ` Christoph Hellwig
2016-02-04 22:57 ` [PATCH v3 17/21] IB/srpt: Detect session shutdown reliably Bart Van Assche
2016-02-04 22:58 ` [PATCH v3 18/21] IB/srpt: Fix srpt_write_pending() Bart Van Assche
2016-02-04 22:58 ` [PATCH v3 19/21] IB/srpt: Log out all initiators if a port is disabled Bart Van Assche
2016-02-04 22:59 ` [PATCH v3 20/21] IB/srpt: Introduce srpt_process_wait_list() Bart Van Assche
2016-02-04 22:59 ` [PATCH v3 21/21] IB/srpt: Fix wait list processing Bart Van Assche
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