diff options
| author |   Jenny Derzhavetz <jennyf@mellanox.com> | 2015-09-06 14:52:25 +0300 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2015-09-15 15:47:29 -0700 |
| commit | 4366b19ca5eb15e63d6640565ade135cf06be91a (patch) | |
| tree | f65abf9982867c5f34c35edbba70c0563426053c /drivers/infiniband/ulp/isert/ib_isert.h | |
| parent | iser-target: Fix pending connections handling in target stack shutdown sequnce (diff) | |
| download | linux-dev-4366b19ca5eb15e63d6640565ade135cf06be91a.tar.xz linux-dev-4366b19ca5eb15e63d6640565ade135cf06be91a.zip | |
iser-target: Change the recv buffers posting logic
iser target batches post recv operations to avoid
the overhead of acquiring the recv queue lock and
posting a HW doorbell for each command.
We change it to be per command in order to support
zcopy immediate data for IOs that fits in the 8K
transfer boundary (in the next patch).
(Fix minor patch fuzz due to ib_mr removal - nab)
Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/infiniband/ulp/isert/ib_isert.h')
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index b81dfe07ce62..e586ee1691e9 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -136,6 +136,7 @@ struct isert_cmd { struct isert_conn *conn; struct iscsi_cmd *iscsi_cmd; struct iser_tx_desc tx_desc; + struct iser_rx_desc *rx_desc; struct isert_rdma_wr rdma_wr; struct work_struct comp_work; }; @@ -155,9 +156,8 @@ struct isert_conn { u64 login_req_dma; int login_req_len; u64 login_rsp_dma; - unsigned int rx_desc_head; struct iser_rx_desc *rx_descs; - struct ib_recv_wr rx_wr[ISERT_MIN_POSTED_RX]; + struct ib_recv_wr rx_wr[ISERT_QP_MAX_RECV_DTOS]; struct iscsi_conn *conn; struct list_head node; struct completion login_comp; |