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qed: Fix non TCP packets should be dropped on iWARP ll2 connection 

FW workaround. The iWARP LL2 connection did not expect TCP packets
to arrive on it's connection. The fix drops any non-tcp packets

Fixes b5c29ca ("qed: iWARP CM - setup a ll2 connection for handling
SYN packets")

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kalderon 2018-03-14 14:49:28 +02:00 committed by David S. Miller
parent 933e8c91b9
commit 16da09047d
1 changed files with 15 additions and 0 deletions
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15
drivers/net/ethernet/qlogic/qed/qed_iwarp.c
View File

@ -1703,6 +1703,13 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
iph = (struct iphdr *)((u8 *)(ethh) + eth_hlen);
if (eth_type == ETH_P_IP) {
if (iph->protocol != IPPROTO_TCP) {
DP_NOTICE(p_hwfn,
"Unexpected ip protocol on ll2 %x\n",
iph->protocol);
return -EINVAL;
}
cm_info->local_ip[0] = ntohl(iph->daddr);
cm_info->remote_ip[0] = ntohl(iph->saddr);
cm_info->ip_version = TCP_IPV4;
@ -1711,6 +1718,14 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
*payload_len = ntohs(iph->tot_len) - ip_hlen;
} else if (eth_type == ETH_P_IPV6) {
ip6h = (struct ipv6hdr *)iph;
if (ip6h->nexthdr != IPPROTO_TCP) {
DP_NOTICE(p_hwfn,
"Unexpected ip protocol on ll2 %x\n",
iph->protocol);
return -EINVAL;
}
for (i = 0; i < 4; i++) {
cm_info->local_ip[i] =
ntohl(ip6h->daddr.in6_u.u6_addr32[i]);