diff options
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index b180a0379003..f8801c00c2b2 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -21,6 +21,7 @@ #include <linux/if_vlan.h> #include <linux/interrupt.h> #include <linux/ip.h> +#include <net/tcp.h> #include <net/ipv6.h> #include <net/ip6_checksum.h> #include <linux/prefetch.h> @@ -531,7 +532,7 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, tpa_info->parsing_flags, len_on_bd); /* set for GRO */ - if (fp->mode == TPA_MODE_GRO) + if (fp->mode == TPA_MODE_GRO && skb_shinfo(skb)->gso_size) skb_shinfo(skb)->gso_type = (GET_FLAG(tpa_info->parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == @@ -620,6 +621,55 @@ static void *bnx2x_frag_alloc(const struct bnx2x_fastpath *fp) } +#ifdef CONFIG_INET +static void bnx2x_gro_ip_csum(struct bnx2x *bp, struct sk_buff *skb) +{ + const struct iphdr *iph = ip_hdr(skb); + struct tcphdr *th; + + skb_set_transport_header(skb, sizeof(struct iphdr)); + th = tcp_hdr(skb); + + th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), + iph->saddr, iph->daddr, 0); +} + +static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb) +{ + struct ipv6hdr *iph = ipv6_hdr(skb); + struct tcphdr *th; + + skb_set_transport_header(skb, sizeof(struct ipv6hdr)); + th = tcp_hdr(skb); + + th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), + &iph->saddr, &iph->daddr, 0); +} +#endif + +static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp, + struct sk_buff *skb) +{ +#ifdef CONFIG_INET + if (fp->mode == TPA_MODE_GRO && skb_shinfo(skb)->gso_size) { + skb_set_network_header(skb, 0); + switch (be16_to_cpu(skb->protocol)) { + case ETH_P_IP: + bnx2x_gro_ip_csum(bp, skb); + break; + case ETH_P_IPV6: + bnx2x_gro_ipv6_csum(bp, skb); + break; + default: + BNX2X_ERR("FW GRO supports only IPv4/IPv6, not 0x%04x\n", + be16_to_cpu(skb->protocol)); + } + tcp_gro_complete(skb); + } +#endif + napi_gro_receive(&fp->napi, skb); +} + static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, struct bnx2x_agg_info *tpa_info, u16 pages, @@ -673,7 +723,7 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, skb, cqe, cqe_idx)) { if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) __vlan_hwaccel_put_tag(skb, tpa_info->vlan_tag); - napi_gro_receive(&fp->napi, skb); + bnx2x_gro_receive(bp, fp, skb); } else { DP(NETIF_MSG_RX_STATUS, "Failed to allocate new pages - dropping packet!\n"); |