struct ixgbe_tx_buffer *first,
u8 *hdr_len)
{
+ u32 vlan_macip_lens, type_tucmd, mss_l4len_idx;
struct sk_buff *skb = first->skb;
- u32 vlan_macip_lens, type_tucmd;
- u32 mss_l4len_idx, l4len;
+ union {
+ struct iphdr *v4;
+ struct ipv6hdr *v6;
+ unsigned char *hdr;
+ } ip;
+ union {
+ struct tcphdr *tcp;
+ unsigned char *hdr;
+ } l4;
+ u32 paylen, l4_offset;
int err;
if (skb->ip_summed != CHECKSUM_PARTIAL)
if (err < 0)
return err;
+ ip.hdr = skb_network_header(skb);
+ l4.hdr = skb_checksum_start(skb);
+
/* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP;
- if (first->protocol == htons(ETH_P_IP)) {
- struct iphdr *iph = ip_hdr(skb);
- iph->tot_len = 0;
- iph->check = 0;
- tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
- iph->daddr, 0,
- IPPROTO_TCP,
- 0);
+ /* initialize outer IP header fields */
+ if (ip.v4->version == 4) {
+ /* IP header will have to cancel out any data that
+ * is not a part of the outer IP header
+ */
+ ip.v4->check = csum_fold(csum_add(lco_csum(skb),
+ csum_unfold(l4.tcp->check)));
type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4;
+
+ ip.v4->tot_len = 0;
first->tx_flags |= IXGBE_TX_FLAGS_TSO |
IXGBE_TX_FLAGS_CSUM |
IXGBE_TX_FLAGS_IPV4;
- } else if (skb_is_gso_v6(skb)) {
- ipv6_hdr(skb)->payload_len = 0;
- tcp_hdr(skb)->check =
- ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
- &ipv6_hdr(skb)->daddr,
- 0, IPPROTO_TCP, 0);
+ } else {
+ ip.v6->payload_len = 0;
first->tx_flags |= IXGBE_TX_FLAGS_TSO |
IXGBE_TX_FLAGS_CSUM;
}
- /* compute header lengths */
- l4len = tcp_hdrlen(skb);
- *hdr_len = skb_transport_offset(skb) + l4len;
+ /* determine offset of inner transport header */
+ l4_offset = l4.hdr - skb->data;
+
+ /* compute length of segmentation header */
+ *hdr_len = (l4.tcp->doff * 4) + l4_offset;
+
+ /* remove payload length from inner checksum */
+ paylen = skb->len - l4_offset;
+ csum_replace_by_diff(&l4.tcp->check, htonl(paylen));
/* update gso size and bytecount with header size */
first->gso_segs = skb_shinfo(skb)->gso_segs;
first->bytecount += (first->gso_segs - 1) * *hdr_len;
/* mss_l4len_id: use 0 as index for TSO */
- mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT;
+ mss_l4len_idx = (*hdr_len - l4_offset) << IXGBE_ADVTXD_L4LEN_SHIFT;
mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
- vlan_macip_lens = skb_network_header_len(skb);
- vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT;
+ vlan_macip_lens = l4.hdr - ip.hdr;
+ vlan_macip_lens |= (ip.hdr - skb->data) << IXGBE_ADVTXD_MACLEN_SHIFT;
vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK;
ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd,
kfree(fwd_adapter);
}
-#define IXGBE_MAX_TUNNEL_HDR_LEN 80
+#define IXGBE_MAX_MAC_HDR_LEN 127
+#define IXGBE_MAX_NETWORK_HDR_LEN 511
+
static netdev_features_t
ixgbe_features_check(struct sk_buff *skb, struct net_device *dev,
netdev_features_t features)
{
- if (!skb->encapsulation)
- return features;
-
- if (unlikely(skb_inner_mac_header(skb) - skb_transport_header(skb) >
- IXGBE_MAX_TUNNEL_HDR_LEN))
- return features & ~NETIF_F_CSUM_MASK;
+ unsigned int network_hdr_len, mac_hdr_len;
+
+ /* Make certain the headers can be described by a context descriptor */
+ mac_hdr_len = skb_network_header(skb) - skb->data;
+ if (unlikely(mac_hdr_len > IXGBE_MAX_MAC_HDR_LEN))
+ return features & ~(NETIF_F_HW_CSUM |
+ NETIF_F_SCTP_CRC |
+ NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_TSO |
+ NETIF_F_TSO6);
+
+ network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
+ if (unlikely(network_hdr_len > IXGBE_MAX_NETWORK_HDR_LEN))
+ return features & ~(NETIF_F_HW_CSUM |
+ NETIF_F_SCTP_CRC |
+ NETIF_F_TSO |
+ NETIF_F_TSO6);
+
+ /* We can only support IPV4 TSO in tunnels if we can mangle the
+ * inner IP ID field, so strip TSO if MANGLEID is not supported.
+ */
+ if (skb->encapsulation && !(features & NETIF_F_TSO_MANGLEID))
+ features &= ~NETIF_F_TSO;
return features;
}
NETIF_F_TSO6 |
NETIF_F_RXHASH |
NETIF_F_RXCSUM |
- NETIF_F_HW_CSUM |
- NETIF_F_HW_VLAN_CTAG_TX |
- NETIF_F_HW_VLAN_CTAG_RX |
- NETIF_F_HW_VLAN_CTAG_FILTER;
+ NETIF_F_HW_CSUM;
+
+#define IXGBE_GSO_PARTIAL_FEATURES (NETIF_F_GSO_GRE | \
+ NETIF_F_GSO_GRE_CSUM | \
+ NETIF_F_GSO_IPIP | \
+ NETIF_F_GSO_SIT | \
+ NETIF_F_GSO_UDP_TUNNEL | \
+ NETIF_F_GSO_UDP_TUNNEL_CSUM)
+
+ netdev->gso_partial_features = IXGBE_GSO_PARTIAL_FEATURES;
+ netdev->features |= NETIF_F_GSO_PARTIAL |
+ IXGBE_GSO_PARTIAL_FEATURES;
if (hw->mac.type >= ixgbe_mac_82599EB)
netdev->features |= NETIF_F_SCTP_CRC;
/* copy netdev features into list of user selectable features */
- netdev->hw_features |= netdev->features;
- netdev->hw_features |= NETIF_F_RXALL |
+ netdev->hw_features |= netdev->features |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_RXALL |
NETIF_F_HW_L2FW_DOFFLOAD;
if (hw->mac.type >= ixgbe_mac_82599EB)
netdev->hw_features |= NETIF_F_NTUPLE |
NETIF_F_HW_TC;
- netdev->vlan_features |= NETIF_F_SG |
- NETIF_F_TSO |
- NETIF_F_TSO6 |
- NETIF_F_HW_CSUM |
- NETIF_F_SCTP_CRC;
+ if (pci_using_dac)
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ /* set this bit last since it cannot be part of vlan_features */
+ netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX;
+ netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
+ netdev->hw_enc_features |= netdev->vlan_features;
netdev->mpls_features |= NETIF_F_HW_CSUM;
- netdev->hw_enc_features |= NETIF_F_HW_CSUM;
netdev->priv_flags |= IFF_UNICAST_FLT;
netdev->priv_flags |= IFF_SUPP_NOFCS;
NETIF_F_FCOE_MTU;
}
#endif /* IXGBE_FCOE */
- if (pci_using_dac) {
- netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= NETIF_F_HIGHDMA;
- }
if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)
netdev->hw_features |= NETIF_F_LRO;
struct ixgbevf_tx_buffer *first,
u8 *hdr_len)
{
+ u32 vlan_macip_lens, type_tucmd, mss_l4len_idx;
struct sk_buff *skb = first->skb;
- u32 vlan_macip_lens, type_tucmd;
- u32 mss_l4len_idx, l4len;
+ union {
+ struct iphdr *v4;
+ struct ipv6hdr *v6;
+ unsigned char *hdr;
+ } ip;
+ union {
+ struct tcphdr *tcp;
+ unsigned char *hdr;
+ } l4;
+ u32 paylen, l4_offset;
int err;
if (skb->ip_summed != CHECKSUM_PARTIAL)
if (err < 0)
return err;
+ ip.hdr = skb_network_header(skb);
+ l4.hdr = skb_checksum_start(skb);
+
/* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP;
- if (first->protocol == htons(ETH_P_IP)) {
- struct iphdr *iph = ip_hdr(skb);
-
- iph->tot_len = 0;
- iph->check = 0;
- tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
- iph->daddr, 0,
- IPPROTO_TCP,
- 0);
+ /* initialize outer IP header fields */
+ if (ip.v4->version == 4) {
+ /* IP header will have to cancel out any data that
+ * is not a part of the outer IP header
+ */
+ ip.v4->check = csum_fold(csum_add(lco_csum(skb),
+ csum_unfold(l4.tcp->check)));
type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4;
+
+ ip.v4->tot_len = 0;
first->tx_flags |= IXGBE_TX_FLAGS_TSO |
IXGBE_TX_FLAGS_CSUM |
IXGBE_TX_FLAGS_IPV4;
- } else if (skb_is_gso_v6(skb)) {
- ipv6_hdr(skb)->payload_len = 0;
- tcp_hdr(skb)->check =
- ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
- &ipv6_hdr(skb)->daddr,
- 0, IPPROTO_TCP, 0);
+ } else {
+ ip.v6->payload_len = 0;
first->tx_flags |= IXGBE_TX_FLAGS_TSO |
IXGBE_TX_FLAGS_CSUM;
}
- /* compute header lengths */
- l4len = tcp_hdrlen(skb);
- *hdr_len += l4len;
- *hdr_len = skb_transport_offset(skb) + l4len;
+ /* determine offset of inner transport header */
+ l4_offset = l4.hdr - skb->data;
+
+ /* compute length of segmentation header */
+ *hdr_len = (l4.tcp->doff * 4) + l4_offset;
- /* update GSO size and bytecount with header size */
+ /* remove payload length from inner checksum */
+ paylen = skb->len - l4_offset;
+ csum_replace_by_diff(&l4.tcp->check, htonl(paylen));
+
+ /* update gso size and bytecount with header size */
first->gso_segs = skb_shinfo(skb)->gso_segs;
first->bytecount += (first->gso_segs - 1) * *hdr_len;
/* mss_l4len_id: use 1 as index for TSO */
- mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT;
+ mss_l4len_idx = (*hdr_len - l4_offset) << IXGBE_ADVTXD_L4LEN_SHIFT;
mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
mss_l4len_idx |= (1u << IXGBE_ADVTXD_IDX_SHIFT);
/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
- vlan_macip_lens = skb_network_header_len(skb);
- vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT;
+ vlan_macip_lens = l4.hdr - ip.hdr;
+ vlan_macip_lens |= (ip.hdr - skb->data) << IXGBE_ADVTXD_MACLEN_SHIFT;
vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK;
ixgbevf_tx_ctxtdesc(tx_ring, vlan_macip_lens,
return stats;
}
+#define IXGBEVF_MAX_MAC_HDR_LEN 127
+#define IXGBEVF_MAX_NETWORK_HDR_LEN 511
+
+static netdev_features_t
+ixgbevf_features_check(struct sk_buff *skb, struct net_device *dev,
+ netdev_features_t features)
+{
+ unsigned int network_hdr_len, mac_hdr_len;
+
+ /* Make certain the headers can be described by a context descriptor */
+ mac_hdr_len = skb_network_header(skb) - skb->data;
+ if (unlikely(mac_hdr_len > IXGBEVF_MAX_MAC_HDR_LEN))
+ return features & ~(NETIF_F_HW_CSUM |
+ NETIF_F_SCTP_CRC |
+ NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_TSO |
+ NETIF_F_TSO6);
+
+ network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
+ if (unlikely(network_hdr_len > IXGBEVF_MAX_NETWORK_HDR_LEN))
+ return features & ~(NETIF_F_HW_CSUM |
+ NETIF_F_SCTP_CRC |
+ NETIF_F_TSO |
+ NETIF_F_TSO6);
+
+ /* We can only support IPV4 TSO in tunnels if we can mangle the
+ * inner IP ID field, so strip TSO if MANGLEID is not supported.
+ */
+ if (skb->encapsulation && !(features & NETIF_F_TSO_MANGLEID))
+ features &= ~NETIF_F_TSO;
+
+ return features;
+}
+
static const struct net_device_ops ixgbevf_netdev_ops = {
.ndo_open = ixgbevf_open,
.ndo_stop = ixgbevf_close,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ixgbevf_netpoll,
#endif
- .ndo_features_check = passthru_features_check,
+ .ndo_features_check = ixgbevf_features_check,
};
static void ixgbevf_assign_netdev_ops(struct net_device *dev)
NETIF_F_HW_CSUM |
NETIF_F_SCTP_CRC;
- netdev->features = netdev->hw_features |
- NETIF_F_HW_VLAN_CTAG_TX |
- NETIF_F_HW_VLAN_CTAG_RX |
- NETIF_F_HW_VLAN_CTAG_FILTER;
+#define IXGBEVF_GSO_PARTIAL_FEATURES (NETIF_F_GSO_GRE | \
+ NETIF_F_GSO_GRE_CSUM | \
+ NETIF_F_GSO_IPIP | \
+ NETIF_F_GSO_SIT | \
+ NETIF_F_GSO_UDP_TUNNEL | \
+ NETIF_F_GSO_UDP_TUNNEL_CSUM)
- netdev->vlan_features |= NETIF_F_SG |
- NETIF_F_TSO |
- NETIF_F_TSO6 |
- NETIF_F_HW_CSUM |
- NETIF_F_SCTP_CRC;
+ netdev->gso_partial_features = IXGBEVF_GSO_PARTIAL_FEATURES;
+ netdev->hw_features |= NETIF_F_GSO_PARTIAL |
+ IXGBEVF_GSO_PARTIAL_FEATURES;
- netdev->mpls_features |= NETIF_F_HW_CSUM;
- netdev->hw_enc_features |= NETIF_F_HW_CSUM;
+ netdev->features = netdev->hw_features;
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
+ netdev->mpls_features |= NETIF_F_HW_CSUM;
+ netdev->hw_enc_features |= netdev->vlan_features;
+
+ /* set this bit last since it cannot be part of vlan_features */
+ netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX;
+
netdev->priv_flags |= IFF_UNICAST_FLT;
if (IXGBE_REMOVED(hw->hw_addr)) {
git.samba.org / sfrench / cifs-2.6.git / commitdiff