diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-02-27 07:02:48 -0800 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-03-22 22:01:59 +0100 |
| commit | 59be23a78272e2dc17ea39f4ea47f8798c0ecd4f (patch) | |
| tree | a8d95773e9a07a2dc1eb110104d254c9e79cdae5 | |
| parent | 2f82fa987df6b060241fc760eadf5dd02c51a979 (diff) | |
iser-target: Ignore completions for FRWRs in isert_cq_tx_work
commit 9bb4ca68fc48eea618b1af1c1cde2a251ae32d1b upstream.
This patch changes IB_WR_FAST_REG_MR + IB_WR_LOCAL_INV related
work requests to include a ISER_FRWR_LI_WRID value in order to
signal isert_cq_tx_work() that these requests should be ignored.
This is necessary because even though IB_SEND_SIGNALED is not
set for either work request, during a QP failure event the work
requests will be returned with exception status from the TX
completion queue.
v2 changes:
- Rename ISER_FRWR_LI_WRID -> ISER_FASTREG_LI_WRID (Sagi)
Acked-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.h | 1 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index e935d08dcbf7..206232d05144 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -1694,8 +1694,10 @@ isert_cq_tx_work(struct work_struct *work) pr_debug("TX wc.status: 0x%08x\n", wc.status); pr_debug("TX wc.vendor_err: 0x%08x\n", wc.vendor_err); - atomic_dec(&isert_conn->post_send_buf_count); - isert_cq_tx_comp_err(tx_desc, isert_conn); + if (wc.wr_id != ISER_FASTREG_LI_WRID) { + atomic_dec(&isert_conn->post_send_buf_count); + isert_cq_tx_comp_err(tx_desc, isert_conn); + } } } @@ -2160,6 +2162,7 @@ isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc, if (!fr_desc->valid) { memset(&inv_wr, 0, sizeof(inv_wr)); + inv_wr.wr_id = ISER_FASTREG_LI_WRID; inv_wr.opcode = IB_WR_LOCAL_INV; inv_wr.ex.invalidate_rkey = fr_desc->data_mr->rkey; wr = &inv_wr; @@ -2170,6 +2173,7 @@ isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc, /* Prepare FASTREG WR */ memset(&fr_wr, 0, sizeof(fr_wr)); + fr_wr.wr_id = ISER_FASTREG_LI_WRID; fr_wr.opcode = IB_WR_FAST_REG_MR; fr_wr.wr.fast_reg.iova_start = fr_desc->data_frpl->page_list[0] + page_off; diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index ed5bf40aea92..52f4bf0d1a0f 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -6,6 +6,7 @@ #define ISERT_RDMA_LISTEN_BACKLOG 10 #define ISCSI_ISER_SG_TABLESIZE 256 +#define ISER_FASTREG_LI_WRID 0xffffffffffffffffULL enum isert_desc_type { ISCSI_TX_CONTROL, |