RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line

This fixes ntuple calculation for IPv6 active open request for T5
adapter.  And also removes an duplicate line which got added in commit
92e7ae7 ("iw_cxgb4: Choose appropriate hw mtu index and ISS for
iWARP connections")

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

drivers/infiniband/hw/cxgb4/cm.c

@@ -675,6 +675,7 @@ static int send_connect(struct c4iw_ep *ep)
 	if (is_t5(ep->com.dev->rdev.lldi.adapter_type)) {
 		opt2 |= T5_OPT_2_VALID;
 		opt2 |= V_CONG_CNTRL(CONG_ALG_TAHOE);
+		opt2 |= CONG_CNTRL_VALID; /* OPT_2_ISS for T5 */
 	}
 	t4_set_arp_err_handler(skb, ep, act_open_req_arp_failure);
 
@@ -720,8 +721,6 @@ static int send_connect(struct c4iw_ep *ep)
 	} else {
 		u32 isn = (prandom_u32() & ~7UL) - 1;
 
-		opt2 |= T5_OPT_2_VALID;
-		opt2 |= CONG_CNTRL_VALID; /* OPT_2_ISS for T5 */
 		if (peer2peer)
 			isn += 4;
 
@@ -763,10 +762,10 @@ static int send_connect(struct c4iw_ep *ep)
 			t5_req6->peer_ip_lo = *((__be64 *)
 						(ra6->sin6_addr.s6_addr + 8));
 			t5_req6->opt0 = cpu_to_be64(opt0);
-			t5_req6->params = (__force __be64)cpu_to_be32(
+			t5_req6->params = cpu_to_be64(V_FILTER_TUPLE(
 							cxgb4_select_ntuple(
 						ep->com.dev->rdev.lldi.ports[0],
-						ep->l2t));
+						ep->l2t)));
 			t5_req6->rsvd = cpu_to_be32(isn);
 			PDBG("%s snd_isn %u\n", __func__,
 			     be32_to_cpu(t5_req6->rsvd));