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net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK

Browse source 
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
repo.diff.show_diff_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);