Commit 9510b066 authored by Shiraz Saleem's avatar Shiraz Saleem Committed by Doug Ledford

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: default avatarTatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: default avatarFaisal Latif <faisal.latif@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c2b75ef7
......@@ -1512,6 +1512,8 @@ enum i40iw_alignment {
I40IW_SD_BUF_ALIGNMENT = 0x100
};
#define I40IW_WQE_SIZE_64 64
#define I40IW_QP_WQE_MIN_SIZE 32
#define I40IW_QP_WQE_MAX_SIZE 128
......
......@@ -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;
......
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