libmthca: fix posting 256 WRs to SRQ in tavor.
Same bug as for regular RQ really, so same fix.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Index: openib/src/userspace/libmthca/src/srq.c
===================================================================
--- openib/src/userspace/libmthca/src/srq.c (revision 7317)
+++ openib/src/userspace/libmthca/src/srq.c (working copy)
@@ -97,24 +97,7 @@ int mthca_tavor_post_srq_recv(struct ibv
first_ind = srq->first_free;
- for (nreq = 0; wr; ++nreq, wr = wr->next) {
- if (nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB) {
- nreq = 0;
-
- doorbell[0] = htonl(first_ind << srq->wqe_shift);
- doorbell[1] = htonl(srq->srqn << 8);
-
- /*
- * Make sure that descriptors are written
- * before doorbell is rung.
- */
- mb();
-
- mthca_write64(doorbell, to_mctx(ibsrq->context),
MTHCA_RECV_DOORBELL);
-
- first_ind = srq->first_free;
- }
-
+ for (nreq = 0; wr; wr = wr->next) {
ind = srq->first_free;
if (ind < 0) {
@@ -172,6 +155,23 @@ int mthca_tavor_post_srq_recv(struct ibv
srq->wrid[ind] = wr->wr_id;
srq->first_free = next_ind;
+
+ if (++nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB) {
+ nreq = 0;
+
+ doorbell[0] = htonl(first_ind << srq->wqe_shift);
+ doorbell[1] = htonl(srq->srqn << 8);
+
+ /*
+ * Make sure that descriptors are written
+ * before doorbell is rung.
+ */
+ mb();
+
+ mthca_write64(doorbell, to_mctx(ibsrq->context),
MTHCA_RECV_DOORBELL);
+
+ first_ind = srq->first_free;
+ }
}
if (nreq) {
--
MST
_______________________________________________
openib-general mailing list
[email protected]
http://openib.org/mailman/listinfo/openib-general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
