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IB/rxe: vary the source udp port for receive scaling

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Select the source udp port number for a QP based on the
source QPN. This provides a better spread of traffic
across NIC RX queues for RC/UC QPs.

Signed-off-by: Vijay Immanuel <vijayi@attalasystems.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Vijay Immanuel
2018-07-05 18:43:47 -07:00
committed by Doug Ledford
parent 5b394b2ddf
commit d3c04a3a68
3 changed files with 15 additions and 4 deletions
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8
drivers/infiniband/sw/rxe/rxe_net.c
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@@ -396,8 +396,8 @@ static int prepare4(struct rxe_dev *rxe, struct rxe_pkt_info *pkt,
if (!memcmp(saddr, daddr, sizeof(*daddr)))
pkt->mask |= RXE_LOOPBACK_MASK;
prepare_udp_hdr(skb, htons(RXE_ROCE_V2_SPORT),
htons(ROCE_V2_UDP_DPORT));
prepare_udp_hdr(skb, cpu_to_be16(qp->src_port),
cpu_to_be16(ROCE_V2_UDP_DPORT));
prepare_ipv4_hdr(dst, skb, saddr->s_addr, daddr->s_addr, IPPROTO_UDP,
av->grh.traffic_class, av->grh.hop_limit, df, xnet);
@@ -423,8 +423,8 @@ static int prepare6(struct rxe_dev *rxe, struct rxe_pkt_info *pkt,
if (!memcmp(saddr, daddr, sizeof(*daddr)))
pkt->mask |= RXE_LOOPBACK_MASK;
prepare_udp_hdr(skb, htons(RXE_ROCE_V2_SPORT),
htons(ROCE_V2_UDP_DPORT));
prepare_udp_hdr(skb, cpu_to_be16(qp->src_port),
cpu_to_be16(ROCE_V2_UDP_DPORT));
prepare_ipv6_hdr(dst, skb, saddr, daddr, IPPROTO_UDP,
av->grh.traffic_class,