diff options
author | Shiraz Saleem <shiraz.saleem@intel.com> | 2016-04-22 14:14:23 -0500 |
---|---|---|
committer | Doug Ledford <dledford@redhat.com> | 2016-04-28 16:32:54 -0400 |
commit | 9510b0666eaeda032de89a54f112cb3e9f41b2c5 (patch) | |
tree | 00b9361d2ffda625033e5451d586a3cad1eded5e /drivers/infiniband/hw/i40iw/i40iw_uk.c | |
parent | c2b75ef7dcb9cf5e237955b0d0fa48918978493d (diff) |
RDMA/i40iw: Fixes for WQE alignment
Invalidation after every WQE write is changed to invalidate
only if required. NOPs are padded so that WQE writes are
aligned to 64B boundary.
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/i40iw/i40iw_uk.c')
-rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_uk.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c b/drivers/infiniband/hw/i40iw/i40iw_uk.c index 9e3a700d5a2d..6e0e3272e57f 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_uk.c +++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c @@ -162,6 +162,17 @@ u64 *i40iw_qp_get_next_send_wqe(struct i40iw_qp_uk *qp, if (!*wqe_idx) qp->swqe_polarity = !qp->swqe_polarity; } + + if (((*wqe_idx & 3) == 1) && (wqe_size == I40IW_WQE_SIZE_64)) { + i40iw_nop_1(qp); + I40IW_RING_MOVE_HEAD(qp->sq_ring, ret_code); + if (ret_code) + return NULL; + *wqe_idx = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring); + if (!*wqe_idx) + qp->swqe_polarity = !qp->swqe_polarity; + } + for (i = 0; i < wqe_size / I40IW_QP_WQE_MIN_SIZE; i++) { I40IW_RING_MOVE_HEAD(qp->sq_ring, ret_code); if (ret_code) @@ -172,8 +183,11 @@ u64 *i40iw_qp_get_next_send_wqe(struct i40iw_qp_uk *qp, peek_head = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring); wqe_0 = qp->sq_base[peek_head].elem; - if (peek_head & 0x3) - wqe_0[3] = LS_64(!qp->swqe_polarity, I40IWQPSQ_VALID); + + if (((peek_head & 3) == 1) || ((peek_head & 3) == 3)) { + if (RS_64(wqe_0[3], I40IWQPSQ_VALID) != !qp->swqe_polarity) + wqe_0[3] = LS_64(!qp->swqe_polarity, I40IWQPSQ_VALID); + } qp->sq_wrtrk_array[*wqe_idx].wrid = wr_id; qp->sq_wrtrk_array[*wqe_idx].wr_len = total_size; |