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IB/iser: Make reg_desc_get a per device routine

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As for fmrs we will hold a single registration descriptor
as no need for multiple like in the frwr mode (descriptor
for each task). This change helps unifying the duplicate
registration code paths.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Adir Lev <adirl@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Sagi Grimberg
2015-08-06 18:33:01 +03:00
committed by Doug Ledford
parent 7d0483c927
commit 81722909c8
2 changed files with 41 additions and 13 deletions
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16
drivers/infiniband/ulp/iser/iscsi_iser.h
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@@ -333,6 +333,8 @@ struct iser_comp {
* @free_reg_res: Free registration resources
* @reg_rdma_mem: Register memory buffers
* @unreg_rdma_mem: Un-register memory buffers
* @reg_desc_get: Get a registration descriptor for pool
* @reg_desc_put: Get a registration descriptor to pool
*/
struct iser_reg_ops {
int (*alloc_reg_res)(struct ib_conn *ib_conn,
@@ -342,6 +344,9 @@ struct iser_reg_ops {
enum iser_data_dir cmd_dir);
void (*unreg_rdma_mem)(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir);
struct iser_fr_desc * (*reg_desc_get)(struct ib_conn *ib_conn);
void (*reg_desc_put)(struct ib_conn *ib_conn,
struct iser_fr_desc *desc);
};
/**
@@ -657,8 +662,13 @@ void iser_free_fastreg_pool(struct ib_conn *ib_conn);
u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir, sector_t *sector);
struct iser_fr_desc *
iser_reg_desc_get(struct ib_conn *ib_conn);
iser_reg_desc_get_fr(struct ib_conn *ib_conn);
void
iser_reg_desc_put(struct ib_conn *ib_conn,
struct iser_fr_desc *desc);
iser_reg_desc_put_fr(struct ib_conn *ib_conn,
struct iser_fr_desc *desc);
struct iser_fr_desc *
iser_reg_desc_get_fmr(struct ib_conn *ib_conn);
void
iser_reg_desc_put_fmr(struct ib_conn *ib_conn,
struct iser_fr_desc *desc);
#endif