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[1/3] IB/rxe: Use BTH_PSN_MASK when ACKing duplicate sends

Message ID 1482414878-6892-2-git-send-email-andrew.boyer@dell.com (mailing list archive)
State Accepted
Headers show

Commit Message

Andrew Boyer Dec. 22, 2016, 1:54 p.m. UTC 
Signed-off-by: Andrew Boyer <andrew.boyer@dell.com>
---
 drivers/infiniband/sw/rxe/rxe_resp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c
index 7a36ec9..3435eff 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) {