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authorAndrew Boyer <andrew.boyer@dell.com>2016-12-22 08:54:36 -0500
committerDoug Ledford <dledford@redhat.com>2016-12-22 11:36:12 -0500
commit37b36193946e4fe7af2c3965e394eb311ab6601d (patch)
treed5f2f498c9f8dcb9d5981e8f8affa5def19490b4 /drivers
parent74c3875c3d9aad356ae27fc4f4176d4dc89c457b (diff)
downloadlinux-37b36193946e4fe7af2c3965e394eb311ab6601d.tar.gz
IB/rxe: Use BTH_PSN_MASK when ACKing duplicate sends
Signed-off-by: Andrew Boyer <andrew.boyer@dell.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_resp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c
index 7a36ec9dbc0c..3435efff8799 100644
--- a/drivers/infiniband/sw/rxe/rxe_resp.c
+++ b/drivers/infiniband/sw/rxe/rxe_resp.c
@@ -1070,12 +1070,13 @@ static enum resp_states duplicate_request(struct rxe_qp *qp,
 					  struct rxe_pkt_info *pkt)
 {
 	enum resp_states rc;
+	u32 prev_psn = (qp->resp.psn - 1) & BTH_PSN_MASK;
 
 	if (pkt->mask & RXE_SEND_MASK ||
 	    pkt->mask & RXE_WRITE_MASK) {
 		/* SEND. Ack again and cleanup. C9-105. */
 		if (bth_ack(pkt))
-			send_ack(qp, pkt, AETH_ACK_UNLIMITED, qp->resp.psn - 1);
+			send_ack(qp, pkt, AETH_ACK_UNLIMITED, prev_psn);
 		rc = RESPST_CLEANUP;
 		goto out;
 	} else if (pkt->mask & RXE_READ_MASK) {