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IB/iser: Move fast_reg_descriptor initialization to a function 

fastreg descriptor will include protection information context.  In
order to place the logic in one place we introduce iser_create_fr_desc
function.

This patch does not change any functionality.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Alex Tabachnik <alext@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sagi Grimberg 2014-03-05 19:43:41 +02:00 committed by Roland Dreier
parent d11ec4ecf0
commit 310b347c60
1 changed files with 40 additions and 18 deletions
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58
drivers/infiniband/ulp/iser/iser_verbs.c
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@ -279,6 +279,39 @@ void iser_free_fmr_pool(struct iser_conn *ib_conn)
ib_conn->fmr.page_vec = NULL;
}
static int
iser_create_fastreg_desc(struct ib_device *ib_device, struct ib_pd *pd,
struct fast_reg_descriptor *desc)
{
int ret;
desc->data_frpl = ib_alloc_fast_reg_page_list(ib_device,
ISCSI_ISER_SG_TABLESIZE + 1);
if (IS_ERR(desc->data_frpl)) {
ret = PTR_ERR(desc->data_frpl);
iser_err("Failed to allocate ib_fast_reg_page_list err=%d\n",
ret);
return PTR_ERR(desc->data_frpl);
}
desc->data_mr = ib_alloc_fast_reg_mr(pd, ISCSI_ISER_SG_TABLESIZE + 1);
if (IS_ERR(desc->data_mr)) {
ret = PTR_ERR(desc->data_mr);
iser_err("Failed to allocate ib_fast_reg_mr err=%d\n", ret);
goto fast_reg_mr_failure;
}
iser_info("Create fr_desc %p page_list %p\n",
desc, desc->data_frpl->page_list);
desc->valid = true;
return 0;
fast_reg_mr_failure:
ib_free_fast_reg_page_list(desc->data_frpl);
return ret;
}
/**
* iser_create_fastreg_pool - Creates pool of fast_reg descriptors
* for fast registration work requests.
@ -300,32 +333,21 @@ int iser_create_fastreg_pool(struct iser_conn *ib_conn, unsigned cmds_max)
goto err;
}
desc->data_frpl = ib_alloc_fast_reg_page_list(device->ib_device,
ISCSI_ISER_SG_TABLESIZE + 1);
if (IS_ERR(desc->data_frpl)) {
ret = PTR_ERR(desc->data_frpl);
iser_err("Failed to allocate ib_fast_reg_page_list err=%d\n", ret);
goto fast_reg_page_failure;
ret = iser_create_fastreg_desc(device->ib_device,
device->pd, desc);
if (ret) {
iser_err("Failed to create fastreg descriptor err=%d\n",
ret);
kfree(desc);
goto err;
}
desc->data_mr = ib_alloc_fast_reg_mr(device->pd,
ISCSI_ISER_SG_TABLESIZE + 1);
if (IS_ERR(desc->data_mr)) {
ret = PTR_ERR(desc->data_mr);
iser_err("Failed to allocate ib_fast_reg_mr err=%d\n", ret);
goto fast_reg_mr_failure;
}
desc->valid = true;
list_add_tail(&desc->list, &ib_conn->fastreg.pool);
ib_conn->fastreg.pool_size++;
}
return 0;
fast_reg_mr_failure:
ib_free_fast_reg_page_list(desc->data_frpl);
fast_reg_page_failure:
kfree(desc);
err:
iser_free_fastreg_pool(ib_conn);
return ret;