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IB/iser: Introduce iser_reg_ops

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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>
This commit is contained in:
Sagi Grimberg
2015-08-06 18:32:56 +03:00
zatwierdzone przez Doug Ledford
rodzic 8c18ed03a9
commit 48afbff673
4 zmienionych plików z 75 dodań i 45 usunięć
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30
drivers/infiniband/ulp/iser/iser_verbs.c
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@@ -87,25 +87,9 @@ static int iser_create_device_ib_res(struct iser_device *device)
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 @@ static void iser_free_device_ib_res(struct iser_device *device)
}
/**
* 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 @@ pi_ctx_alloc_failure:
}
/**
* 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;