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net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK

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The name NETIF_F_ALL_CSUM is a misnomer. This does not correspond to the
set of features for offloading all checksums. This is a mask of the
checksum offload related features bits. It is incorrect to set both
NETIF_F_HW_CSUM and NETIF_F_IP_CSUM or NETIF_F_IPV6 at the same time for
features of a device.

This patch:
  - Changes instances of NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK (where
    NETIF_F_ALL_CSUM is being used as a mask).
  - Changes bonding, sfc/efx, ipvlan, macvlan, vlan, and team drivers to
    use NEITF_F_HW_CSUM in features list instead of NETIF_F_ALL_CSUM.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2015-12-14 11:19:43 -08:00 committed by David S. Miller
parent 253aab0597
commit a188222b6e
25 changed files with 43 additions and 39 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/net/bonding/bond_main.c
View file

@ -1067,12 +1067,12 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
return features;
}
#define BOND_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
#define BOND_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
NETIF_F_HIGHDMA | NETIF_F_LRO)
#define BOND_ENC_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | NETIF_F_RXCSUM |\
NETIF_F_ALL_TSO)
#define BOND_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
static void bond_compute_features(struct bonding *bond)
{
@ -4182,7 +4182,6 @@ void bond_setup(struct net_device *bond_dev)
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
bond_dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM);
bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
bond_dev->features |= bond_dev->hw_features;
}

2
drivers/net/ethernet/emulex/benet/be_main.c
View file

@ -5289,7 +5289,7 @@ static netdev_features_t be_features_check(struct sk_buff *skb,
skb->inner_protocol != htons(ETH_P_TEB) ||
skb_inner_mac_header(skb) - skb_transport_header(skb) !=
sizeof(struct udphdr) + sizeof(struct vxlanhdr))
return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
return features;
}

5
drivers/net/ethernet/ibm/ibmveth.c
View file

@ -763,7 +763,7 @@ static netdev_features_t ibmveth_fix_features(struct net_device *dev,
*/
if (!(features & NETIF_F_RXCSUM))
features &= ~NETIF_F_ALL_CSUM;
features &= ~NETIF_F_CSUM_MASK;
return features;
}
@ -928,7 +928,8 @@ static int ibmveth_set_features(struct net_device *dev,
rc1 = ibmveth_set_csum_offload(dev, rx_csum);
if (rc1 && !adapter->rx_csum)
dev->features =
features & ~(NETIF_F_ALL_CSUM | NETIF_F_RXCSUM);
features & ~(NETIF_F_CSUM_MASK |
NETIF_F_RXCSUM);
}
if (large_send != adapter->large_send) {

2
drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
View file

@ -1357,7 +1357,7 @@ static netdev_features_t fm10k_features_check(struct sk_buff *skb,
if (!skb->encapsulation || fm10k_tx_encap_offload(skb))
return features;
return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
}
static const struct net_device_ops fm10k_netdev_ops = {

2
drivers/net/ethernet/intel/i40e/i40e_main.c
View file

@ -8766,7 +8766,7 @@ static netdev_features_t i40e_features_check(struct sk_buff *skb,
if (skb->encapsulation &&
(skb_inner_mac_header(skb) - skb_transport_header(skb) >
I40E_MAX_TUNNEL_HDR_LEN))
return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
return features;
}

2
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View file

@ -8598,7 +8598,7 @@ ixgbe_features_check(struct sk_buff *skb, struct net_device *dev,
if (unlikely(skb_inner_mac_header(skb) - skb_transport_header(skb) >
IXGBE_MAX_TUNNEL_HDR_LEN))
return features & ~NETIF_F_ALL_CSUM;
return features & ~NETIF_F_CSUM_MASK;
return features;
}

2
drivers/net/ethernet/jme.c
View file

@ -2753,7 +2753,7 @@ static netdev_features_t
jme_fix_features(struct net_device *netdev, netdev_features_t features)
{
if (netdev->mtu > 1900)
features &= ~(NETIF_F_ALL_TSO | NETIF_F_ALL_CSUM);
features &= ~(NETIF_F_ALL_TSO | NETIF_F_CSUM_MASK);
return features;
}

2
drivers/net/ethernet/marvell/sky2.c
View file

@ -4380,7 +4380,7 @@ static netdev_features_t sky2_fix_features(struct net_device *dev,
*/
if (dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U) {
netdev_info(dev, "checksum offload not possible with jumbo frames\n");
features &= ~(NETIF_F_TSO|NETIF_F_SG|NETIF_F_ALL_CSUM);
features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_CSUM_MASK);
}
/* Some hardware requires receive checksum for RSS to work. */

4
drivers/net/ethernet/netronome/nfp/nfp_net_common.c
View file

@ -2071,7 +2071,7 @@ nfp_net_features_check(struct sk_buff *skb, struct net_device *dev,
l4_hdr = ipv6_hdr(skb)->nexthdr;
break;
default:
return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
}
if (skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
@ -2080,7 +2080,7 @@ nfp_net_features_check(struct sk_buff *skb, struct net_device *dev,
(l4_hdr == IPPROTO_UDP &&
(skb_inner_mac_header(skb) - skb_transport_header(skb) !=
sizeof(struct udphdr) + sizeof(struct vxlanhdr))))
return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
return features;
}

2
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c
View file

@ -500,7 +500,7 @@ void pch_gbe_check_options(struct pch_gbe_adapter *adapter)
val = XsumTX;
pch_gbe_validate_option(&val, &opt, adapter);
if (!val)
dev->features &= ~NETIF_F_ALL_CSUM;
dev->features &= ~NETIF_F_CSUM_MASK;
}
{ /* Flow Control */
static const struct pch_gbe_option opt = {

2
drivers/net/ethernet/sfc/efx.c
View file

@ -3131,7 +3131,7 @@ static int efx_pci_probe(struct pci_dev *pci_dev,
if (efx->type->offload_features & NETIF_F_V6_CSUM)
net_dev->features |= NETIF_F_TSO6;
/* Mask for features that also apply to VLAN devices */
net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG |
net_dev->vlan_features |= (NETIF_F_HW_CSUM | NETIF_F_SG |
NETIF_F_HIGHDMA | NETIF_F_ALL_TSO |
NETIF_F_RXCSUM);
/* All offloads can be toggled */

4
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View file

@ -2402,7 +2402,7 @@ static netdev_features_t stmmac_fix_features(struct net_device *dev,
features &= ~NETIF_F_RXCSUM;
if (!priv->plat->tx_coe)
features &= ~NETIF_F_ALL_CSUM;
features &= ~NETIF_F_CSUM_MASK;
/* Some GMAC devices have a bugged Jumbo frame support that
* needs to have the Tx COE disabled for oversized frames
@ -2410,7 +2410,7 @@ static netdev_features_t stmmac_fix_features(struct net_device *dev,
* the TX csum insertionin the TDES and not use SF.
*/
if (priv->plat->bugged_jumbo && (dev->mtu > ETH_DATA_LEN))
features &= ~NETIF_F_ALL_CSUM;
features &= ~NETIF_F_CSUM_MASK;
return features;
}

2
drivers/net/ipvlan/ipvlan_main.c
View file

@ -88,7 +88,7 @@ static struct lock_class_key ipvlan_netdev_xmit_lock_key;
static struct lock_class_key ipvlan_netdev_addr_lock_key;
#define IPVLAN_FEATURES \
(NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
NETIF_F_GSO | NETIF_F_TSO | NETIF_F_UFO | NETIF_F_GSO_ROBUST | \
NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO | NETIF_F_RXCSUM | \
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER)

2
drivers/net/macvlan.c
View file

@ -762,7 +762,7 @@ static struct lock_class_key macvlan_netdev_addr_lock_key;
NETIF_F_GSO_ROBUST)
#define MACVLAN_FEATURES \
(NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
NETIF_F_GSO | NETIF_F_TSO | NETIF_F_UFO | NETIF_F_LRO | \
NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO | NETIF_F_RXCSUM | \
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER)

2
drivers/net/macvtap.c
View file

@ -388,7 +388,7 @@ static rx_handler_result_t macvtap_handle_frame(struct sk_buff **pskb)
* check, we either support them all or none.
*/
if (skb->ip_summed == CHECKSUM_PARTIAL &&
!(features & NETIF_F_ALL_CSUM) &&
!(features & NETIF_F_CSUM_MASK) &&
skb_checksum_help(skb))
goto drop;
skb_queue_tail(&q->sk.sk_receive_queue, skb);

3
drivers/net/team/team.c
View file

@ -981,7 +981,7 @@ static void team_port_disable(struct team *team,
team_lower_state_changed(port);
}
#define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
#define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
NETIF_F_HIGHDMA | NETIF_F_LRO)
@ -2091,7 +2091,6 @@ static void team_setup(struct net_device *dev)
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM);
dev->features |= dev->hw_features;
}

2
drivers/net/usb/r8152.c
View file

@ -1986,7 +1986,7 @@ rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
int offset = skb_transport_offset(skb);
if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
features &= ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
features &= ~NETIF_F_GSO_MASK;

2
drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
View file

@ -69,7 +69,7 @@ ksocknal_lib_zc_capable(ksock_conn_t *conn)
/* ZC if the socket supports scatter/gather and doesn't need software
* checksums */
return ((caps & NETIF_F_SG) != 0 && (caps & NETIF_F_ALL_CSUM) != 0);
return ((caps & NETIF_F_SG) != 0 && (caps & NETIF_F_CSUM_MASK) != 0);
}
int

7
include/linux/netdev_features.h
View file

@ -149,7 +149,12 @@ enum {
#define NETIF_F_GEN_CSUM NETIF_F_HW_CSUM
#define NETIF_F_V4_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IP_CSUM)
#define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM)
#define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM)
/* List of IP checksum features. Note that NETIF_HW_CSUM should not be
* set in features when NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM are set--
* this would be contradictory
*/
#define NETIF_F_CSUM_MASK (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM)
#define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)

6
include/linux/netdevice.h
View file

@ -3763,12 +3763,12 @@ static inline netdev_features_t netdev_intersect_features(netdev_features_t f1,
netdev_features_t f2)
{
if (f1 & NETIF_F_GEN_CSUM)
f1 |= (NETIF_F_ALL_CSUM & ~NETIF_F_GEN_CSUM);
f1 |= (NETIF_F_CSUM_MASK & ~NETIF_F_GEN_CSUM);
if (f2 & NETIF_F_GEN_CSUM)
f2 |= (NETIF_F_ALL_CSUM & ~NETIF_F_GEN_CSUM);
f2 |= (NETIF_F_CSUM_MASK & ~NETIF_F_GEN_CSUM);
f1 &= f2;
if (f1 & NETIF_F_GEN_CSUM)
f1 &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_GEN_CSUM);
f1 &= ~(NETIF_F_CSUM_MASK & ~NETIF_F_GEN_CSUM);
return f1;
}

2
include/net/vxlan.h
View file

@ -232,7 +232,7 @@ static inline netdev_features_t vxlan_features_check(struct sk_buff *skb,
skb->inner_protocol != htons(ETH_P_TEB) ||
(skb_inner_mac_header(skb) - skb_transport_header(skb) !=
sizeof(struct udphdr) + sizeof(struct vxlanhdr))))
return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
return features;
}

2
net/8021q/vlan_dev.c
View file

@ -543,7 +543,7 @@ static int vlan_dev_init(struct net_device *dev)
(1<<__LINK_STATE_DORMANT))) |
(1<<__LINK_STATE_PRESENT);
dev->hw_features = NETIF_F_ALL_CSUM | NETIF_F_SG |
dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG |
NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE |
NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC |
NETIF_F_ALL_FCOE;

10
net/core/dev.c
View file

@ -2645,7 +2645,7 @@ static netdev_features_t harmonize_features(struct sk_buff *skb,
if (skb->ip_summed != CHECKSUM_NONE &&
!can_checksum_protocol(features, type)) {
features &= ~NETIF_F_ALL_CSUM;
features &= ~NETIF_F_CSUM_MASK;
} else if (illegal_highdma(skb->dev, skb)) {
features &= ~NETIF_F_SG;
}
@ -2792,7 +2792,7 @@ static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device
else
skb_set_transport_header(skb,
skb_checksum_start_offset(skb));
if (!(features & NETIF_F_ALL_CSUM) &&
if (!(features & NETIF_F_CSUM_MASK) &&
skb_checksum_help(skb))
goto out_kfree_skb;
}
@ -7572,15 +7572,15 @@ netdev_features_t netdev_increment_features(netdev_features_t all,
netdev_features_t one, netdev_features_t mask)
{
if (mask & NETIF_F_GEN_CSUM)
mask |= NETIF_F_ALL_CSUM;
mask |= NETIF_F_CSUM_MASK;
mask |= NETIF_F_VLAN_CHALLENGED;
all |= one & (NETIF_F_ONE_FOR_ALL|NETIF_F_ALL_CSUM) & mask;
all |= one & (NETIF_F_ONE_FOR_ALL | NETIF_F_CSUM_MASK) & mask;
all &= one | ~NETIF_F_ALL_FOR_ALL;
/* If one device supports hw checksumming, set for all. */
if (all & NETIF_F_GEN_CSUM)
all &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_GEN_CSUM);
all &= ~(NETIF_F_CSUM_MASK & ~NETIF_F_GEN_CSUM);
return all;
}

2
net/core/ethtool.c
View file

@ -235,7 +235,7 @@ static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
switch (eth_cmd) {
case ETHTOOL_GTXCSUM:
case ETHTOOL_STXCSUM:
return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CRC;
return NETIF_F_CSUM_MASK | NETIF_F_SCTP_CRC;
case ETHTOOL_GRXCSUM:
case ETHTOOL_SRXCSUM:
return NETIF_F_RXCSUM;

4
net/ipv4/tcp.c
View file

@ -1018,7 +1018,7 @@ int tcp_sendpage(struct sock *sk, struct page *page, int offset,
ssize_t res;
if (!(sk->sk_route_caps & NETIF_F_SG) ||
!(sk->sk_route_caps & NETIF_F_ALL_CSUM))
!(sk->sk_route_caps & NETIF_F_CSUM_MASK))
return sock_no_sendpage(sk->sk_socket, page, offset, size,
flags);
@ -1175,7 +1175,7 @@ int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
/*
* Check whether we can use HW checksum.
*/
if (sk->sk_route_caps & NETIF_F_ALL_CSUM)
if (sk->sk_route_caps & NETIF_F_CSUM_MASK)
skb->ip_summed = CHECKSUM_PARTIAL;
skb_entail(sk, skb);