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IB/isert: Move fastreg descriptor creation to a function 

This routine may be called both by fast registration
descriptors for data and for integrity buffers.

This patch does not change any functionality.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Sagi Grimberg 2014-01-09 18:40:51 +02:00 committed by Nicholas Bellinger
parent a3a5a82627
commit dc87a90f5d
1 changed files with 32 additions and 20 deletions
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52
drivers/infiniband/ulp/isert/ib_isert.c
View File

@ -392,6 +392,33 @@ isert_conn_free_fastreg_pool(struct isert_conn *isert_conn)
isert_conn->conn_fr_pool_size - i);
}
static int
isert_create_fr_desc(struct ib_device *ib_device, struct ib_pd *pd,
struct fast_reg_descriptor *fr_desc)
{
fr_desc->data_frpl = ib_alloc_fast_reg_page_list(ib_device,
ISCSI_ISER_SG_TABLESIZE);
if (IS_ERR(fr_desc->data_frpl)) {
pr_err("Failed to allocate data frpl err=%ld\n",
PTR_ERR(fr_desc->data_frpl));
return PTR_ERR(fr_desc->data_frpl);
}
fr_desc->data_mr = ib_alloc_fast_reg_mr(pd, ISCSI_ISER_SG_TABLESIZE);
if (IS_ERR(fr_desc->data_mr)) {
pr_err("Failed to allocate data frmr err=%ld\n",
PTR_ERR(fr_desc->data_mr));
ib_free_fast_reg_page_list(fr_desc->data_frpl);
return PTR_ERR(fr_desc->data_mr);
}
pr_debug("Create fr_desc %p page_list %p\n",
fr_desc, fr_desc->data_frpl->page_list);
fr_desc->valid = true;
return 0;
}
static int
isert_conn_create_fastreg_pool(struct isert_conn *isert_conn)
{
@ -409,29 +436,14 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn)
goto err;
}
fr_desc->data_frpl =
ib_alloc_fast_reg_page_list(device->ib_device,
ISCSI_ISER_SG_TABLESIZE);
if (IS_ERR(fr_desc->data_frpl)) {
pr_err("Failed to allocate fr_pg_list err=%ld\n",
PTR_ERR(fr_desc->data_frpl));
ret = PTR_ERR(fr_desc->data_frpl);
ret = isert_create_fr_desc(device->ib_device,
isert_conn->conn_pd, fr_desc);
if (ret) {
pr_err("Failed to create fastreg descriptor err=%d\n",
ret);
goto err;
}
fr_desc->data_mr = ib_alloc_fast_reg_mr(isert_conn->conn_pd,
ISCSI_ISER_SG_TABLESIZE);
if (IS_ERR(fr_desc->data_mr)) {
pr_err("Failed to allocate frmr err=%ld\n",
PTR_ERR(fr_desc->data_mr));
ret = PTR_ERR(fr_desc->data_mr);
ib_free_fast_reg_page_list(fr_desc->data_frpl);
goto err;
}
pr_debug("Create fr_desc %p page_list %p\n",
fr_desc, fr_desc->data_frpl->page_list);
fr_desc->valid = true;
list_add_tail(&fr_desc->list, &isert_conn->conn_fr_pool);
isert_conn->conn_fr_pool_size++;
}