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| author |   Sagi Grimberg <sagig@mellanox.com> | 2014-02-19 17:50:22 +0200 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2014-04-07 01:48:45 -0700 |
| commit | e3d7e4c30c494431d492864448fbb16cdd7a6178 (patch) | |
| tree | ff13db0fde856e95d66a631fd37bc61b1f7799b6 /drivers/infiniband/ulp/isert/ib_isert.h | |
| parent | Target/sbc: add debug print (diff) | |
| download | linux-dev-e3d7e4c30c494431d492864448fbb16cdd7a6178.tar.xz linux-dev-e3d7e4c30c494431d492864448fbb16cdd7a6178.zip | |
IB/isert: Introduce isert_map/unmap_data_buf
export map/unmap data buffer to a routine that may
be used in various places in the code and keep the
mapping data in a designated descriptor. Also, let
isert_fast_reg_mr to decide weather to use global
MR or do fast registration.
This commit does not change any functionality.
(Fix context change for v3.14-rc6 code - nab)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/infiniband/ulp/isert/ib_isert.h')
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index f6ae7f5dd408..8a02c4ebe373 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -57,18 +57,26 @@ struct fast_reg_descriptor { bool valid; }; +struct isert_data_buf { + struct scatterlist *sg; + int nents; + u32 sg_off; + u32 len; /* cur_rdma_length */ + u32 offset; + unsigned int dma_nents; + enum dma_data_direction dma_dir; +}; + struct isert_rdma_wr { struct list_head wr_list; struct isert_cmd *isert_cmd; enum iser_ib_op_code iser_ib_op; struct ib_sge *ib_sge; struct ib_sge s_ib_sge; - int num_sge; - struct scatterlist *sge; int send_wr_num; struct ib_send_wr *send_wr; struct ib_send_wr s_send_wr; - u32 cur_rdma_length; + struct isert_data_buf data; struct fast_reg_descriptor *fr_desc; }; |