On Wed, 2018-03-14 at 14:49 +0200, Michal Kalderon wrote:
> FW workaround. The iWARP LL2 connection did not expect TCP packets
> to arrive on it's connection. The fix drops any non-tcp packets
[]
> diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
[]
> @@ -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;
> + }
Perhaps this should be ratelimited.
> +
> 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;
here too
> + }
> +
> for (i = 0; i < 4; i++) {
> cm_info->local_ip[i] =
> ntohl(ip6h->daddr.in6_u.u6_addr32[i]);
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