Fix posting lists of 256 entries. Same as previous kernel patch.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Index: openib/src/userspace/libmthca/src/qp.c
===================================================================
--- openib/src/userspace/libmthca/src/qp.c (revision 7317)
+++ openib/src/userspace/libmthca/src/qp.c (working copy)
@@ -332,25 +332,7 @@ int mthca_tavor_post_recv(struct ibv_qp
ind = qp->rq.next_ind;
- for (nreq = 0; wr; ++nreq, wr = wr->next) {
- if (nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB) {
- nreq = 0;
-
- doorbell[0] = htonl((qp->rq.next_ind <<
qp->rq.wqe_shift) | size0);
- doorbell[1] = htonl(ibqp->qp_num << 8);
-
- /*
- * Make sure that descriptors are written
- * before doorbell is rung.
- */
- mb();
-
- mthca_write64(doorbell, to_mctx(ibqp->context),
MTHCA_RECV_DOORBELL);
-
- qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB;
- size0 = 0;
- }
-
+ for (nreq = 0; wr; wr = wr->next) {
if (wq_overflow(&qp->rq, nreq, to_mcq(qp->ibv_qp.recv_cq))) {
ret = -1;
*bad_wr = wr;
@@ -400,6 +382,24 @@ int mthca_tavor_post_recv(struct ibv_qp
++ind;
if (ind >= qp->rq.max)
ind -= qp->rq.max;
+
+ if (++nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB) {
+ nreq = 0;
+
+ doorbell[0] = htonl((qp->rq.next_ind <<
qp->rq.wqe_shift) | size0);
+ doorbell[1] = htonl(ibqp->qp_num << 8);
+
+ /*
+ * Make sure that descriptors are written
+ * before doorbell is rung.
+ */
+ mb();
+
+ mthca_write64(doorbell, to_mctx(ibqp->context),
MTHCA_RECV_DOORBELL);
+
+ qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB;
+ size0 = 0;
+ }
}
out:
--
MST
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