diff options
| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2016-02-11 11:05:01 -0800 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-02-29 17:12:35 -0500 |
| commit | 671ec1b2d3dc2c800fd3814fd41f4f96499c92ee (patch) | |
| tree | cdf580346065f6c8a0e5e8f5c3050e68e58bc739 | |
| parent | 33912d73487899bfbfc8edb5f3d586ba2b15ceb9 (diff) | |
| download | linux-671ec1b2d3dc2c800fd3814fd41f4f96499c92ee.tar.bz2 | |
IB/srpt: Introduce target_reverse_dma_direction()
Use the function target_reverse_dma_direction() instead of
reimplementing it.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Alex Estrin <alex.estrin@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/ulp/srpt/ib_srpt.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 6d1a1379478c..5da59f485043 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; |