IB/iser: Introduce iser_reg_ops
Move all the per-device function pointers to an easy
extensible iser_reg_ops structure that contains all
the iser registration operations.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index adec4d7..17f43cf 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -87,25 +87,9 @@
return ret;
}
- /* Assign function handles - based on FMR support */
- if (device->ib_device->alloc_fmr && device->ib_device->dealloc_fmr &&
- device->ib_device->map_phys_fmr && device->ib_device->unmap_fmr) {
- iser_info("FMR supported, using FMR for registration\n");
- device->iser_alloc_rdma_reg_res = iser_create_fmr_pool;
- device->iser_free_rdma_reg_res = iser_free_fmr_pool;
- device->iser_reg_rdma_mem = iser_reg_rdma_mem_fmr;
- device->iser_unreg_rdma_mem = iser_unreg_mem_fmr;
- } else
- if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) {
- iser_info("FastReg supported, using FastReg for registration\n");
- device->iser_alloc_rdma_reg_res = iser_create_fastreg_pool;
- device->iser_free_rdma_reg_res = iser_free_fastreg_pool;
- device->iser_reg_rdma_mem = iser_reg_rdma_mem_fastreg;
- device->iser_unreg_rdma_mem = iser_unreg_mem_fastreg;
- } else {
- iser_err("IB device does not support FMRs nor FastRegs, can't register memory\n");
- return -1;
- }
+ ret = iser_assign_reg_ops(device);
+ if (ret)
+ return ret;
device->comps_used = min_t(int, num_online_cpus(),
device->ib_device->num_comp_vectors);
@@ -211,11 +195,11 @@
}
/**
- * iser_create_fmr_pool - Creates FMR pool and page_vector
+ * iser_alloc_fmr_pool - Creates FMR pool and page_vector
*
* returns 0 on success, or errno code on failure
*/
-int iser_create_fmr_pool(struct ib_conn *ib_conn, unsigned cmds_max)
+int iser_alloc_fmr_pool(struct ib_conn *ib_conn, unsigned cmds_max)
{
struct iser_device *device = ib_conn->device;
struct ib_fmr_pool_param params;
@@ -384,11 +368,11 @@
}
/**
- * iser_create_fastreg_pool - Creates pool of fast_reg descriptors
+ * iser_alloc_fastreg_pool - Creates pool of fast_reg descriptors
* for fast registration work requests.
* returns 0 on success, or errno code on failure
*/
-int iser_create_fastreg_pool(struct ib_conn *ib_conn, unsigned cmds_max)
+int iser_alloc_fastreg_pool(struct ib_conn *ib_conn, unsigned cmds_max)
{
struct iser_device *device = ib_conn->device;
struct iser_fr_desc *desc;