From bc5787c6125cc2c868eaace46c46ce6e83dcfcb6 Mon Sep 17 00:00:00 2001 From: Michał Mirosław Date: Tue, 15 Nov 2011 15:29:55 +0000 Subject: net: remove legacy ethtool ops MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As all drivers are converted, we may now remove discrete offload setting callback handling. Signed-off-by: Michał Mirosław Acked-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/netdevice.h | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index cbeb5867cff7..e34717a792b4 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2592,22 +2592,6 @@ static inline int netif_is_bond_slave(struct net_device *dev) extern struct pernet_operations __net_initdata loopback_net_ops; -static inline u32 dev_ethtool_get_rx_csum(struct net_device *dev) -{ - if (dev->features & NETIF_F_RXCSUM) - return 1; - if (!dev->ethtool_ops || !dev->ethtool_ops->get_rx_csum) - return 0; - return dev->ethtool_ops->get_rx_csum(dev); -} - -static inline u32 dev_ethtool_get_flags(struct net_device *dev) -{ - if (!dev->ethtool_ops || !dev->ethtool_ops->get_flags) - return 0; - return dev->ethtool_ops->get_flags(dev); -} - /* Logging, debugging and troubleshooting/diagnostic helpers. */ /* netdev_printk helpers, similar to dev_printk */ -- cgit v1.2.3 From a59e2ecb859f2ab03bb2e230709f8039472ad2c3 Mon Sep 17 00:00:00 2001 From: Michał Mirosław Date: Tue, 15 Nov 2011 15:29:55 +0000 Subject: net: split netdev features to separate header MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move features definitions to separate header so that linux/skbuff.h won't need to include linux/netdevice.h after netdev_features_t is introduced. Signed-off-by: Michał Mirosław Acked-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/netdev_features.h | 90 +++++++++++++++++++++++++++++++++++++++++ include/linux/netdevice.h | 80 +----------------------------------- 2 files changed, 92 insertions(+), 78 deletions(-) create mode 100644 include/linux/netdev_features.h (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h new file mode 100644 index 000000000000..32640edf4d78 --- /dev/null +++ b/include/linux/netdev_features.h @@ -0,0 +1,90 @@ +/* + * Network device features. + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#ifndef _LINUX_NETDEV_FEATURES_H +#define _LINUX_NETDEV_FEATURES_H + +/* Net device feature bits; if you change something, + * also update netdev_features_strings[] in ethtool.c */ + +#define NETIF_F_SG 1 /* Scatter/gather IO. */ +#define NETIF_F_IP_CSUM 2 /* Can checksum TCP/UDP over IPv4. */ +#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */ +#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */ +#define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */ +#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */ +#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */ +#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */ +#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */ +#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */ +#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */ +#define NETIF_F_GSO 2048 /* Enable software GSO. */ +#define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */ + /* do not use LLTX in new drivers */ +#define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */ +#define NETIF_F_GRO 16384 /* Generic receive offload */ +#define NETIF_F_LRO 32768 /* large receive offload */ + +/* the GSO_MASK reserves bits 16 through 23 */ +#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */ +#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */ +#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/ +#define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */ +#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */ +#define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */ +#define NETIF_F_NOCACHE_COPY (1 << 30) /* Use no-cache copyfromuser */ +#define NETIF_F_LOOPBACK (1 << 31) /* Enable loopback */ + +/* Segmentation offload features */ +#define NETIF_F_GSO_SHIFT 16 +#define NETIF_F_GSO_MASK 0x00ff0000 +#define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT) +#define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT) +#define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT) +#define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) +#define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) +#define NETIF_F_FSO (SKB_GSO_FCOE << NETIF_F_GSO_SHIFT) + +/* Features valid for ethtool to change */ +/* = all defined minus driver/device-class-related */ +#define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \ + NETIF_F_LLTX | NETIF_F_NETNS_LOCAL) +#define NETIF_F_ETHTOOL_BITS (0xff3fffff & ~NETIF_F_NEVER_CHANGE) + +/* List of features with software fallbacks. */ +#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \ + NETIF_F_TSO6 | NETIF_F_UFO) + +#define NETIF_F_GEN_CSUM (NETIF_F_HW_CSUM | NETIF_F_NO_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) + +#define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) + +#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ + NETIF_F_FSO) + +/* + * If one device supports one of these features, then enable them + * for all in netdev_increment_features. + */ +#define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ + NETIF_F_SG | NETIF_F_HIGHDMA | \ + NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED) +/* + * If one device doesn't support one of these features, then disable it + * for all in netdev_increment_features. + */ +#define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO) + +/* changeable features with no special hardware requirements */ +#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) + +#endif /* _LINUX_NETDEV_FEATURES_H */ diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e34717a792b4..9cf6e90b171d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -51,6 +51,8 @@ #include #endif +#include + struct vlan_group; struct netpoll_info; struct phy_device; @@ -1005,84 +1007,6 @@ struct net_device { /* mask of features inheritable by VLAN devices */ u32 vlan_features; - /* Net device feature bits; if you change something, - * also update netdev_features_strings[] in ethtool.c */ - -#define NETIF_F_SG 1 /* Scatter/gather IO. */ -#define NETIF_F_IP_CSUM 2 /* Can checksum TCP/UDP over IPv4. */ -#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */ -#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */ -#define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */ -#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */ -#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */ -#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */ -#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */ -#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */ -#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */ -#define NETIF_F_GSO 2048 /* Enable software GSO. */ -#define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */ - /* do not use LLTX in new drivers */ -#define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */ -#define NETIF_F_GRO 16384 /* Generic receive offload */ -#define NETIF_F_LRO 32768 /* large receive offload */ - -/* the GSO_MASK reserves bits 16 through 23 */ -#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */ -#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */ -#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/ -#define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */ -#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */ -#define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */ -#define NETIF_F_NOCACHE_COPY (1 << 30) /* Use no-cache copyfromuser */ -#define NETIF_F_LOOPBACK (1 << 31) /* Enable loopback */ - - /* Segmentation offload features */ -#define NETIF_F_GSO_SHIFT 16 -#define NETIF_F_GSO_MASK 0x00ff0000 -#define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT) -#define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT) -#define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT) -#define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) -#define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) -#define NETIF_F_FSO (SKB_GSO_FCOE << NETIF_F_GSO_SHIFT) - - /* Features valid for ethtool to change */ - /* = all defined minus driver/device-class-related */ -#define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \ - NETIF_F_LLTX | NETIF_F_NETNS_LOCAL) -#define NETIF_F_ETHTOOL_BITS (0xff3fffff & ~NETIF_F_NEVER_CHANGE) - - /* List of features with software fallbacks. */ -#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \ - NETIF_F_TSO6 | NETIF_F_UFO) - - -#define NETIF_F_GEN_CSUM (NETIF_F_NO_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) - -#define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) - -#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ - NETIF_F_FSO) - - /* - * If one device supports one of these features, then enable them - * for all in netdev_increment_features. - */ -#define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ - NETIF_F_SG | NETIF_F_HIGHDMA | \ - NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED) - /* - * If one device doesn't support one of these features, then disable it - * for all in netdev_increment_features. - */ -#define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO) - - /* changeable features with no special hardware requirements */ -#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) - /* Interface index. Unique device identifier */ int ifindex; int iflink; -- cgit v1.2.3 From c8f44affb7244f2ac3e703cab13d55ede27621bb Mon Sep 17 00:00:00 2001 From: Michał Mirosław Date: Tue, 15 Nov 2011 15:29:55 +0000 Subject: net: introduce and use netdev_features_t for device features sets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 9 ++--- drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 13 ++++--- drivers/net/ethernet/atheros/atl1e/atl1e_main.c | 13 ++++--- drivers/net/ethernet/atheros/atlx/atl2.c | 13 ++++--- drivers/net/ethernet/atheros/atlx/atlx.c | 13 ++++--- drivers/net/ethernet/broadcom/bnx2.c | 6 ++-- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 5 +-- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 5 +-- drivers/net/ethernet/broadcom/tg3.c | 11 +++--- drivers/net/ethernet/chelsio/cxgb/cxgb2.c | 7 ++-- drivers/net/ethernet/chelsio/cxgb/sge.c | 2 +- drivers/net/ethernet/chelsio/cxgb/sge.h | 2 +- drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 9 ++--- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 12 ++++--- .../net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 8 +++-- drivers/net/ethernet/davicom/dm9000.c | 5 +-- drivers/net/ethernet/freescale/gianfar.c | 2 +- drivers/net/ethernet/freescale/gianfar.h | 4 +-- drivers/net/ethernet/freescale/gianfar_ethtool.c | 4 +-- drivers/net/ethernet/ibm/ibmveth.c | 6 ++-- drivers/net/ethernet/intel/e1000/e1000_main.c | 14 +++++--- drivers/net/ethernet/intel/e1000e/netdev.c | 5 +-- drivers/net/ethernet/intel/igb/igb_main.c | 12 ++++--- drivers/net/ethernet/intel/igbvf/netdev.c | 3 +- drivers/net/ethernet/intel/ixgb/ixgb_main.c | 8 ++--- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++-- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 3 +- drivers/net/ethernet/jme.c | 8 ++--- drivers/net/ethernet/marvell/mv643xx_eth.c | 4 +-- drivers/net/ethernet/marvell/sky2.c | 13 +++---- drivers/net/ethernet/micrel/ksz884x.c | 3 +- drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 5 +-- drivers/net/ethernet/neterion/s2io.c | 4 +-- drivers/net/ethernet/neterion/vxge/vxge-main.c | 9 ++--- drivers/net/ethernet/nvidia/forcedeth.c | 11 +++--- .../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 5 +-- .../net/ethernet/qlogic/netxen/netxen_nic_main.c | 6 ++-- drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 5 +-- drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 9 ++--- drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 2 +- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 10 +++--- drivers/net/ethernet/realtek/8139cp.c | 2 +- drivers/net/ethernet/realtek/r8169.c | 6 ++-- drivers/net/ethernet/sfc/efx.c | 2 +- drivers/net/ethernet/sfc/net_driver.h | 2 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +- drivers/net/tun.c | 7 ++-- drivers/net/usb/smsc75xx.c | 3 +- drivers/net/usb/smsc95xx.c | 3 +- drivers/net/vmxnet3/vmxnet3_ethtool.c | 4 +-- drivers/net/vmxnet3/vmxnet3_int.h | 2 +- drivers/net/xen-netback/interface.c | 3 +- drivers/net/xen-netfront.c | 8 +++-- drivers/s390/net/qeth_l3_main.c | 6 ++-- include/linux/netdev_features.h | 4 +++ include/linux/netdevice.h | 41 ++++++++++++---------- include/linux/skbuff.h | 4 ++- include/net/protocol.h | 4 +-- include/net/sock.h | 6 ++-- include/net/tcp.h | 3 +- include/net/udp.h | 3 +- lib/vsprintf.c | 19 ++++++++++ net/8021q/vlan_dev.c | 3 +- net/bridge/br_device.c | 3 +- net/bridge/br_if.c | 5 +-- net/bridge/br_private.h | 3 +- net/core/dev.c | 38 +++++++++++--------- net/core/ethtool.c | 9 +++-- net/core/skbuff.c | 2 +- net/ipv4/af_inet.c | 3 +- net/ipv4/tcp.c | 3 +- net/ipv4/udp.c | 3 +- net/ipv6/af_inet6.c | 3 +- net/ipv6/udp.c | 3 +- 74 files changed, 305 insertions(+), 202 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b0c577256487..ac5337a04639 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1325,11 +1325,12 @@ static int bond_sethwaddr(struct net_device *bond_dev, return 0; } -static u32 bond_fix_features(struct net_device *dev, u32 features) +static netdev_features_t bond_fix_features(struct net_device *dev, + netdev_features_t features) { struct slave *slave; struct bonding *bond = netdev_priv(dev); - u32 mask; + netdev_features_t mask; int i; read_lock(&bond->lock); @@ -1363,7 +1364,7 @@ static void bond_compute_features(struct bonding *bond) { struct slave *slave; struct net_device *bond_dev = bond->dev; - u32 vlan_features = BOND_VLAN_FEATURES; + netdev_features_t vlan_features = BOND_VLAN_FEATURES; unsigned short max_hard_header_len = ETH_HLEN; int i; @@ -1897,7 +1898,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev) struct bonding *bond = netdev_priv(bond_dev); struct slave *slave, *oldcurrent; struct sockaddr addr; - u32 old_features = bond_dev->features; + netdev_features_t old_features = bond_dev->features; /* slave is not a slave or master is not master of this slave */ if (!(slave_dev->flags & IFF_SLAVE) || diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 02c7ed8d9eca..b8591246eb4c 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -411,7 +411,7 @@ static void atl1c_set_multi(struct net_device *netdev) } } -static void __atl1c_vlan_mode(u32 features, u32 *mac_ctrl_data) +static void __atl1c_vlan_mode(netdev_features_t features, u32 *mac_ctrl_data) { if (features & NETIF_F_HW_VLAN_RX) { /* enable VLAN tag insert/strip */ @@ -422,7 +422,8 @@ static void __atl1c_vlan_mode(u32 features, u32 *mac_ctrl_data) } } -static void atl1c_vlan_mode(struct net_device *netdev, u32 features) +static void atl1c_vlan_mode(struct net_device *netdev, + netdev_features_t features) { struct atl1c_adapter *adapter = netdev_priv(netdev); struct pci_dev *pdev = adapter->pdev; @@ -482,7 +483,8 @@ static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter, roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE; } -static u32 atl1c_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t atl1c_fix_features(struct net_device *netdev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -499,9 +501,10 @@ static u32 atl1c_fix_features(struct net_device *netdev, u32 features) return features; } -static int atl1c_set_features(struct net_device *netdev, u32 features) +static int atl1c_set_features(struct net_device *netdev, + netdev_features_t features) { - u32 changed = netdev->features ^ features; + netdev_features_t changed = netdev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) atl1c_vlan_mode(netdev, features); diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c index 95483bcac1d0..c915c0873810 100644 --- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c +++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c @@ -313,7 +313,7 @@ static void atl1e_set_multi(struct net_device *netdev) } } -static void __atl1e_vlan_mode(u32 features, u32 *mac_ctrl_data) +static void __atl1e_vlan_mode(netdev_features_t features, u32 *mac_ctrl_data) { if (features & NETIF_F_HW_VLAN_RX) { /* enable VLAN tag insert/strip */ @@ -324,7 +324,8 @@ static void __atl1e_vlan_mode(u32 features, u32 *mac_ctrl_data) } } -static void atl1e_vlan_mode(struct net_device *netdev, u32 features) +static void atl1e_vlan_mode(struct net_device *netdev, + netdev_features_t features) { struct atl1e_adapter *adapter = netdev_priv(netdev); u32 mac_ctrl_data = 0; @@ -370,7 +371,8 @@ static int atl1e_set_mac_addr(struct net_device *netdev, void *p) return 0; } -static u32 atl1e_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t atl1e_fix_features(struct net_device *netdev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -384,9 +386,10 @@ static u32 atl1e_fix_features(struct net_device *netdev, u32 features) return features; } -static int atl1e_set_features(struct net_device *netdev, u32 features) +static int atl1e_set_features(struct net_device *netdev, + netdev_features_t features) { - u32 changed = netdev->features ^ features; + netdev_features_t changed = netdev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) atl1e_vlan_mode(netdev, features); diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c index db3f43046d32..071f4c858969 100644 --- a/drivers/net/ethernet/atheros/atlx/atl2.c +++ b/drivers/net/ethernet/atheros/atlx/atl2.c @@ -361,7 +361,7 @@ static inline void atl2_irq_disable(struct atl2_adapter *adapter) synchronize_irq(adapter->pdev->irq); } -static void __atl2_vlan_mode(u32 features, u32 *ctrl) +static void __atl2_vlan_mode(netdev_features_t features, u32 *ctrl) { if (features & NETIF_F_HW_VLAN_RX) { /* enable VLAN tag insert/strip */ @@ -372,7 +372,8 @@ static void __atl2_vlan_mode(u32 features, u32 *ctrl) } } -static void atl2_vlan_mode(struct net_device *netdev, u32 features) +static void atl2_vlan_mode(struct net_device *netdev, + netdev_features_t features) { struct atl2_adapter *adapter = netdev_priv(netdev); u32 ctrl; @@ -391,7 +392,8 @@ static void atl2_restore_vlan(struct atl2_adapter *adapter) atl2_vlan_mode(adapter->netdev, adapter->netdev->features); } -static u32 atl2_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t atl2_fix_features(struct net_device *netdev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -405,9 +407,10 @@ static u32 atl2_fix_features(struct net_device *netdev, u32 features) return features; } -static int atl2_set_features(struct net_device *netdev, u32 features) +static int atl2_set_features(struct net_device *netdev, + netdev_features_t features) { - u32 changed = netdev->features ^ features; + netdev_features_t changed = netdev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) atl2_vlan_mode(netdev, features); diff --git a/drivers/net/ethernet/atheros/atlx/atlx.c b/drivers/net/ethernet/atheros/atlx/atlx.c index aabcf4b5745a..8ff7411094d5 100644 --- a/drivers/net/ethernet/atheros/atlx/atlx.c +++ b/drivers/net/ethernet/atheros/atlx/atlx.c @@ -211,7 +211,7 @@ static void atlx_link_chg_task(struct work_struct *work) spin_unlock_irqrestore(&adapter->lock, flags); } -static void __atlx_vlan_mode(u32 features, u32 *ctrl) +static void __atlx_vlan_mode(netdev_features_t features, u32 *ctrl) { if (features & NETIF_F_HW_VLAN_RX) { /* enable VLAN tag insert/strip */ @@ -222,7 +222,8 @@ static void __atlx_vlan_mode(u32 features, u32 *ctrl) } } -static void atlx_vlan_mode(struct net_device *netdev, u32 features) +static void atlx_vlan_mode(struct net_device *netdev, + netdev_features_t features) { struct atlx_adapter *adapter = netdev_priv(netdev); unsigned long flags; @@ -242,7 +243,8 @@ static void atlx_restore_vlan(struct atlx_adapter *adapter) atlx_vlan_mode(adapter->netdev, adapter->netdev->features); } -static u32 atlx_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t atlx_fix_features(struct net_device *netdev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -256,9 +258,10 @@ static u32 atlx_fix_features(struct net_device *netdev, u32 features) return features; } -static int atlx_set_features(struct net_device *netdev, u32 features) +static int atlx_set_features(struct net_device *netdev, + netdev_features_t features) { - u32 changed = netdev->features ^ features; + netdev_features_t changed = netdev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) atlx_vlan_mode(netdev, features); diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index 32d1f92a2479..7203f37d2ef3 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -7571,8 +7571,8 @@ bnx2_set_phys_id(struct net_device *dev, enum ethtool_phys_id_state state) return 0; } -static u32 -bnx2_fix_features(struct net_device *dev, u32 features) +static netdev_features_t +bnx2_fix_features(struct net_device *dev, netdev_features_t features) { struct bnx2 *bp = netdev_priv(dev); @@ -7583,7 +7583,7 @@ bnx2_fix_features(struct net_device *dev, u32 features) } static int -bnx2_set_features(struct net_device *dev, u32 features) +bnx2_set_features(struct net_device *dev, netdev_features_t features) { struct bnx2 *bp = netdev_priv(dev); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index 0d60b9e633ad..8336c784db49 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -3398,7 +3398,8 @@ int bnx2x_change_mtu(struct net_device *dev, int new_mtu) return bnx2x_reload_if_running(dev); } -u32 bnx2x_fix_features(struct net_device *dev, u32 features) +netdev_features_t bnx2x_fix_features(struct net_device *dev, + netdev_features_t features) { struct bnx2x *bp = netdev_priv(dev); @@ -3409,7 +3410,7 @@ u32 bnx2x_fix_features(struct net_device *dev, u32 features) return features; } -int bnx2x_set_features(struct net_device *dev, u32 features) +int bnx2x_set_features(struct net_device *dev, netdev_features_t features) { struct bnx2x *bp = netdev_priv(dev); u32 flags = bp->flags; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index 41eb17e7720f..80c5ed08e419 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -533,8 +533,9 @@ int bnx2x_change_mtu(struct net_device *dev, int new_mtu); */ int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type); #endif -u32 bnx2x_fix_features(struct net_device *dev, u32 features); -int bnx2x_set_features(struct net_device *dev, u32 features); +netdev_features_t bnx2x_fix_features(struct net_device *dev, + netdev_features_t features); +int bnx2x_set_features(struct net_device *dev, netdev_features_t features); /** * bnx2x_tx_timeout - tx timeout netdev callback diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cd3623416a4e..365cd47e2298 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6968,7 +6968,7 @@ static int tg3_phy_lpbk_set(struct tg3 *tp, u32 speed, bool extlpbk) return 0; } -static void tg3_set_loopback(struct net_device *dev, u32 features) +static void tg3_set_loopback(struct net_device *dev, netdev_features_t features) { struct tg3 *tp = netdev_priv(dev); @@ -6994,7 +6994,8 @@ static void tg3_set_loopback(struct net_device *dev, u32 features) } } -static u32 tg3_fix_features(struct net_device *dev, u32 features) +static netdev_features_t tg3_fix_features(struct net_device *dev, + netdev_features_t features) { struct tg3 *tp = netdev_priv(dev); @@ -7004,9 +7005,9 @@ static u32 tg3_fix_features(struct net_device *dev, u32 features) return features; } -static int tg3_set_features(struct net_device *dev, u32 features) +static int tg3_set_features(struct net_device *dev, netdev_features_t features) { - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; if ((changed & NETIF_F_LOOPBACK) && netif_running(dev)) tg3_set_loopback(dev, features); @@ -15313,7 +15314,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, u32 sndmbx, rcvmbx, intmbx; char str[40]; u64 dma_mask, persist_dma_mask; - u32 features = 0; + netdev_features_t features = 0; printk_once(KERN_INFO "%s\n", version); diff --git a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c index 26d0fd2d9c9d..a971796b2262 100644 --- a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c +++ b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c @@ -850,7 +850,8 @@ static int t1_set_mac_addr(struct net_device *dev, void *p) return 0; } -static u32 t1_fix_features(struct net_device *dev, u32 features) +static netdev_features_t t1_fix_features(struct net_device *dev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -864,9 +865,9 @@ static u32 t1_fix_features(struct net_device *dev, u32 features) return features; } -static int t1_set_features(struct net_device *dev, u32 features) +static int t1_set_features(struct net_device *dev, netdev_features_t features) { - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; struct adapter *adapter = dev->ml_priv; if (changed & NETIF_F_HW_VLAN_RX) diff --git a/drivers/net/ethernet/chelsio/cxgb/sge.c b/drivers/net/ethernet/chelsio/cxgb/sge.c index f9b602300040..47a84359d4e4 100644 --- a/drivers/net/ethernet/chelsio/cxgb/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb/sge.c @@ -742,7 +742,7 @@ static inline void setup_ring_params(struct adapter *adapter, u64 addr, /* * Enable/disable VLAN acceleration. */ -void t1_vlan_mode(struct adapter *adapter, u32 features) +void t1_vlan_mode(struct adapter *adapter, netdev_features_t features) { struct sge *sge = adapter->sge; diff --git a/drivers/net/ethernet/chelsio/cxgb/sge.h b/drivers/net/ethernet/chelsio/cxgb/sge.h index e03980bcdd65..b9bf16b385f7 100644 --- a/drivers/net/ethernet/chelsio/cxgb/sge.h +++ b/drivers/net/ethernet/chelsio/cxgb/sge.h @@ -79,7 +79,7 @@ irqreturn_t t1_interrupt(int irq, void *cookie); int t1_poll(struct napi_struct *, int); netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev); -void t1_vlan_mode(struct adapter *adapter, u32 features); +void t1_vlan_mode(struct adapter *adapter, netdev_features_t features); void t1_sge_start(struct sge *); void t1_sge_stop(struct sge *); int t1_sge_intr_error_handler(struct sge *); diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c index 053560da6347..63ffaa7e255f 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c +++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c @@ -2532,7 +2532,7 @@ static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p) } } -static void cxgb_vlan_mode(struct net_device *dev, u32 features) +static void cxgb_vlan_mode(struct net_device *dev, netdev_features_t features) { struct port_info *pi = netdev_priv(dev); struct adapter *adapter = pi->adapter; @@ -2553,7 +2553,8 @@ static void cxgb_vlan_mode(struct net_device *dev, u32 features) t3_synchronize_rx(adapter, pi); } -static u32 cxgb_fix_features(struct net_device *dev, u32 features) +static netdev_features_t cxgb_fix_features(struct net_device *dev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -2567,9 +2568,9 @@ static u32 cxgb_fix_features(struct net_device *dev, u32 features) return features; } -static int cxgb_set_features(struct net_device *dev, u32 features) +static int cxgb_set_features(struct net_device *dev, netdev_features_t features) { - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) cxgb_vlan_mode(dev, features); diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 48ffe11d9aa9..fd6d460ea475 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -1856,10 +1856,10 @@ static int set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) return err; } -static int cxgb_set_features(struct net_device *dev, u32 features) +static int cxgb_set_features(struct net_device *dev, netdev_features_t features) { const struct port_info *pi = netdev_priv(dev); - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; int err; if (!(changed & NETIF_F_HW_VLAN_RX)) @@ -3538,7 +3538,7 @@ static int __devinit init_one(struct pci_dev *pdev, { int func, i, err; struct port_info *pi; - unsigned int highdma = 0; + bool highdma = false; struct adapter *adapter = NULL; printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); @@ -3564,7 +3564,7 @@ static int __devinit init_one(struct pci_dev *pdev, } if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { - highdma = NETIF_F_HIGHDMA; + highdma = true; err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); if (err) { dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " @@ -3638,7 +3638,9 @@ static int __devinit init_one(struct pci_dev *pdev, NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_RXHASH | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; - netdev->features |= netdev->hw_features | highdma; + if (highdma) + netdev->hw_features |= NETIF_F_HIGHDMA; + netdev->features |= netdev->hw_features; netdev->vlan_features = netdev->features & VLAN_FEAT; netdev->priv_flags |= IFF_UNICAST_FLT; diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c index ee81d8e798ea..8155cfecae19 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c @@ -1092,7 +1092,8 @@ static int cxgb4vf_change_mtu(struct net_device *dev, int new_mtu) return ret; } -static u32 cxgb4vf_fix_features(struct net_device *dev, u32 features) +static netdev_features_t cxgb4vf_fix_features(struct net_device *dev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -1106,10 +1107,11 @@ static u32 cxgb4vf_fix_features(struct net_device *dev, u32 features) return features; } -static int cxgb4vf_set_features(struct net_device *dev, u32 features) +static int cxgb4vf_set_features(struct net_device *dev, + netdev_features_t features) { struct port_info *pi = netdev_priv(dev); - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) t4vf_set_rxmode(pi->adapter, pi->viid, -1, -1, -1, -1, diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c index 438f4580bf66..26be1dfc1577 100644 --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -474,10 +474,11 @@ static int dm9000_nway_reset(struct net_device *dev) return mii_nway_restart(&dm->mii); } -static int dm9000_set_features(struct net_device *dev, u32 features) +static int dm9000_set_features(struct net_device *dev, + netdev_features_t features) { board_info_t *dm = to_dm9000_board(dev); - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; unsigned long flags; if (!(changed & NETIF_F_RXCSUM)) diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 83199fd0d62b..ff3e8b0f0da3 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -2306,7 +2306,7 @@ void gfar_check_rx_parser_mode(struct gfar_private *priv) } /* Enables and disables VLAN insertion/extraction */ -void gfar_vlan_mode(struct net_device *dev, u32 features) +void gfar_vlan_mode(struct net_device *dev, netdev_features_t features) { struct gfar_private *priv = netdev_priv(dev); struct gfar __iomem *regs = NULL; diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h index 9aa43773e8e3..cda6cb2eb1d2 100644 --- a/drivers/net/ethernet/freescale/gianfar.h +++ b/drivers/net/ethernet/freescale/gianfar.h @@ -1179,9 +1179,9 @@ extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev, extern void gfar_configure_coalescing(struct gfar_private *priv, unsigned long tx_mask, unsigned long rx_mask); void gfar_init_sysfs(struct net_device *dev); -int gfar_set_features(struct net_device *dev, u32 features); +int gfar_set_features(struct net_device *dev, netdev_features_t features); extern void gfar_check_rx_parser_mode(struct gfar_private *priv); -extern void gfar_vlan_mode(struct net_device *dev, u32 features); +extern void gfar_vlan_mode(struct net_device *dev, netdev_features_t features); extern const struct ethtool_ops gfar_ethtool_ops; diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c index 212736bab6bb..1ea0eb9ee643 100644 --- a/drivers/net/ethernet/freescale/gianfar_ethtool.c +++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c @@ -519,12 +519,12 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva return err; } -int gfar_set_features(struct net_device *dev, u32 features) +int gfar_set_features(struct net_device *dev, netdev_features_t features) { struct gfar_private *priv = netdev_priv(dev); unsigned long flags; int err = 0, i = 0; - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; if (changed & (NETIF_F_HW_VLAN_TX|NETIF_F_HW_VLAN_RX)) gfar_vlan_mode(dev, features); diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index b1cd41b9c61c..e877371680a9 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -735,7 +735,8 @@ static void netdev_get_drvinfo(struct net_device *dev, sizeof(info->version) - 1); } -static u32 ibmveth_fix_features(struct net_device *dev, u32 features) +static netdev_features_t ibmveth_fix_features(struct net_device *dev, + netdev_features_t features) { /* * Since the ibmveth firmware interface does not have the @@ -838,7 +839,8 @@ static int ibmveth_set_csum_offload(struct net_device *dev, u32 data) return rc1 ? rc1 : rc2; } -static int ibmveth_set_features(struct net_device *dev, u32 features) +static int ibmveth_set_features(struct net_device *dev, + netdev_features_t features) { struct ibmveth_adapter *adapter = netdev_priv(dev); int rx_csum = !!(features & NETIF_F_RXCSUM); diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index cf480b554622..82f4ef142259 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -167,7 +167,8 @@ static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, struct sk_buff *skb); static bool e1000_vlan_used(struct e1000_adapter *adapter); -static void e1000_vlan_mode(struct net_device *netdev, u32 features); +static void e1000_vlan_mode(struct net_device *netdev, + netdev_features_t features); static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); static void e1000_restore_vlan(struct e1000_adapter *adapter); @@ -806,7 +807,8 @@ static int e1000_is_need_ioport(struct pci_dev *pdev) } } -static u32 e1000_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t e1000_fix_features(struct net_device *netdev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -820,10 +822,11 @@ static u32 e1000_fix_features(struct net_device *netdev, u32 features) return features; } -static int e1000_set_features(struct net_device *netdev, u32 features) +static int e1000_set_features(struct net_device *netdev, + netdev_features_t features) { struct e1000_adapter *adapter = netdev_priv(netdev); - u32 changed = features ^ netdev->features; + netdev_features_t changed = features ^ netdev->features; if (changed & NETIF_F_HW_VLAN_RX) e1000_vlan_mode(netdev, features); @@ -4577,7 +4580,8 @@ static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, e1000_irq_enable(adapter); } -static void e1000_vlan_mode(struct net_device *netdev, u32 features) +static void e1000_vlan_mode(struct net_device *netdev, + netdev_features_t features) { struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index a855db1ad249..d85fac626a80 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -5859,10 +5859,11 @@ static void e1000_eeprom_checks(struct e1000_adapter *adapter) } } -static int e1000_set_features(struct net_device *netdev, u32 features) +static int e1000_set_features(struct net_device *netdev, + netdev_features_t features) { struct e1000_adapter *adapter = netdev_priv(netdev); - u32 changed = features ^ netdev->features; + netdev_features_t changed = features ^ netdev->features; if (changed & (NETIF_F_TSO | NETIF_F_TSO6)) adapter->flags |= FLAG_TSO_FORCE; diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index ced544499f1b..1fcba22c6403 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -145,7 +145,7 @@ static bool igb_clean_rx_irq(struct igb_q_vector *, int); static int igb_ioctl(struct net_device *, struct ifreq *, int cmd); static void igb_tx_timeout(struct net_device *); static void igb_reset_task(struct work_struct *); -static void igb_vlan_mode(struct net_device *netdev, u32 features); +static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features); static void igb_vlan_rx_add_vid(struct net_device *, u16); static void igb_vlan_rx_kill_vid(struct net_device *, u16); static void igb_restore_vlan(struct igb_adapter *); @@ -1742,7 +1742,8 @@ void igb_reset(struct igb_adapter *adapter) igb_get_phy_info(hw); } -static u32 igb_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t igb_fix_features(struct net_device *netdev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -1756,9 +1757,10 @@ static u32 igb_fix_features(struct net_device *netdev, u32 features) return features; } -static int igb_set_features(struct net_device *netdev, u32 features) +static int igb_set_features(struct net_device *netdev, + netdev_features_t features) { - u32 changed = netdev->features ^ features; + netdev_features_t changed = netdev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) igb_vlan_mode(netdev, features); @@ -6467,7 +6469,7 @@ s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) return 0; } -static void igb_vlan_mode(struct net_device *netdev, u32 features) +static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features) { struct igb_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index cca78124be31..2a05658938bd 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -2532,7 +2532,8 @@ static void igbvf_print_device_info(struct igbvf_adapter *adapter) dev_info(&pdev->dev, "Address: %pM\n", netdev->dev_addr); } -static int igbvf_set_features(struct net_device *netdev, u32 features) +static int igbvf_set_features(struct net_device *netdev, + netdev_features_t features) { struct igbvf_adapter *adapter = netdev_priv(netdev); diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c index e21148f8b160..247cf9219e03 100644 --- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c +++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c @@ -325,8 +325,8 @@ ixgb_reset(struct ixgb_adapter *adapter) } } -static u32 -ixgb_fix_features(struct net_device *netdev, u32 features) +static netdev_features_t +ixgb_fix_features(struct net_device *netdev, netdev_features_t features) { /* * Tx VLAN insertion does not work per HW design when Rx stripping is @@ -339,10 +339,10 @@ ixgb_fix_features(struct net_device *netdev, u32 features) } static int -ixgb_set_features(struct net_device *netdev, u32 features) +ixgb_set_features(struct net_device *netdev, netdev_features_t features) { struct ixgb_adapter *adapter = netdev_priv(netdev); - u32 changed = features ^ netdev->features; + netdev_features_t changed = features ^ netdev->features; if (!(changed & (NETIF_F_RXCSUM|NETIF_F_HW_VLAN_RX))) return 0; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 8ef92d1a6aa1..820fc040c241 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -7174,7 +7174,8 @@ void ixgbe_do_reset(struct net_device *netdev) ixgbe_reset(adapter); } -static u32 ixgbe_fix_features(struct net_device *netdev, u32 data) +static netdev_features_t ixgbe_fix_features(struct net_device *netdev, + netdev_features_t data) { struct ixgbe_adapter *adapter = netdev_priv(netdev); @@ -7204,7 +7205,8 @@ static u32 ixgbe_fix_features(struct net_device *netdev, u32 data) return data; } -static int ixgbe_set_features(struct net_device *netdev, u32 data) +static int ixgbe_set_features(struct net_device *netdev, + netdev_features_t data) { struct ixgbe_adapter *adapter = netdev_priv(netdev); bool need_reset = false; diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 4c8e19951d57..3e6ec088c50d 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -3249,7 +3249,8 @@ static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev, return stats; } -static int ixgbevf_set_features(struct net_device *netdev, u32 features) +static int ixgbevf_set_features(struct net_device *netdev, + netdev_features_t features) { struct ixgbevf_adapter *adapter = netdev_priv(netdev); diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c index 7d88c7c28a7c..df3ab831b1ad 100644 --- a/drivers/net/ethernet/jme.c +++ b/drivers/net/ethernet/jme.c @@ -1917,7 +1917,7 @@ jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) struct jme_ring *txring = &(jme->txring[0]); struct txdesc *txdesc = txring->desc, *ctxdesc; struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; - u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; + u8 hidma = !!(jme->dev->features & NETIF_F_HIGHDMA); int i, nr_frags = skb_shinfo(skb)->nr_frags; int mask = jme->tx_ring_mask; const struct skb_frag_struct *frag; @@ -2620,8 +2620,8 @@ jme_set_msglevel(struct net_device *netdev, u32 value) jme->msg_enable = value; } -static u32 -jme_fix_features(struct net_device *netdev, u32 features) +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); @@ -2629,7 +2629,7 @@ jme_fix_features(struct net_device *netdev, u32 features) } static int -jme_set_features(struct net_device *netdev, u32 features) +jme_set_features(struct net_device *netdev, netdev_features_t features) { struct jme_adapter *jme = netdev_priv(netdev); diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index f6b4304ca459..157c5c17fdcc 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -1579,10 +1579,10 @@ mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er) static int -mv643xx_eth_set_features(struct net_device *dev, u32 features) +mv643xx_eth_set_features(struct net_device *dev, netdev_features_t features) { struct mv643xx_eth_private *mp = netdev_priv(dev); - u32 rx_csum = features & NETIF_F_RXCSUM; + int rx_csum = !!(features & NETIF_F_RXCSUM); wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000); diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index 553d1a315b3a..c79dc5447658 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -1275,7 +1275,7 @@ static void rx_set_checksum(struct sky2_port *sky2) } /* Enable/disable receive hash calculation (RSS) */ -static void rx_set_rss(struct net_device *dev, u32 features) +static void rx_set_rss(struct net_device *dev, netdev_features_t features) { struct sky2_port *sky2 = netdev_priv(dev); struct sky2_hw *hw = sky2->hw; @@ -1396,7 +1396,7 @@ static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) #define SKY2_VLAN_OFFLOADS (NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO) -static void sky2_vlan_mode(struct net_device *dev, u32 features) +static void sky2_vlan_mode(struct net_device *dev, netdev_features_t features) { struct sky2_port *sky2 = netdev_priv(dev); struct sky2_hw *hw = sky2->hw; @@ -4282,7 +4282,8 @@ static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom return sky2_vpd_write(sky2->hw, cap, data, eeprom->offset, eeprom->len); } -static u32 sky2_fix_features(struct net_device *dev, u32 features) +static netdev_features_t sky2_fix_features(struct net_device *dev, + netdev_features_t features) { const struct sky2_port *sky2 = netdev_priv(dev); const struct sky2_hw *hw = sky2->hw; @@ -4306,13 +4307,13 @@ static u32 sky2_fix_features(struct net_device *dev, u32 features) return features; } -static int sky2_set_features(struct net_device *dev, u32 features) +static int sky2_set_features(struct net_device *dev, netdev_features_t features) { struct sky2_port *sky2 = netdev_priv(dev); - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; if (changed & NETIF_F_RXCSUM) { - u32 on = features & NETIF_F_RXCSUM; + int on = !!(features & NETIF_F_RXCSUM); sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), on ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); } diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index 3b67fe65404a..8d846bd09711 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -6588,7 +6588,8 @@ static void netdev_get_ethtool_stats(struct net_device *dev, * * Return 0 if successful; otherwise an error code. */ -static int netdev_set_features(struct net_device *dev, u32 features) +static int netdev_set_features(struct net_device *dev, + netdev_features_t features) { struct dev_priv *priv = netdev_priv(dev); struct dev_info *hw_priv = priv->adapter; diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index 0778edcf7b9a..20b72ecb020a 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -1491,7 +1491,7 @@ myri10ge_clean_rx_done(struct myri10ge_slice_state *ss, int budget) * access to avoid theoretical race condition with functions that * change NETIF_F_LRO flag at runtime. */ - bool lro_enabled = ACCESS_ONCE(mgp->dev->features) & NETIF_F_LRO; + bool lro_enabled = !!(ACCESS_ONCE(mgp->dev->features) & NETIF_F_LRO); while (rx_done->entry[idx].length != 0 && work_done < budget) { length = ntohs(rx_done->entry[idx].length); @@ -3149,7 +3149,8 @@ static int myri10ge_set_mac_address(struct net_device *dev, void *addr) return 0; } -static u32 myri10ge_fix_features(struct net_device *dev, u32 features) +static netdev_features_t myri10ge_fix_features(struct net_device *dev, + netdev_features_t features) { if (!(features & NETIF_F_RXCSUM)) features &= ~NETIF_F_LRO; diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index e6c90a5ac5d4..76ae47627200 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -6616,10 +6616,10 @@ static void s2io_ethtool_get_strings(struct net_device *dev, } } -static int s2io_set_features(struct net_device *dev, u32 features) +static int s2io_set_features(struct net_device *dev, netdev_features_t features) { struct s2io_nic *sp = netdev_priv(dev); - u32 changed = (features ^ dev->features) & NETIF_F_LRO; + netdev_features_t changed = (features ^ dev->features) & NETIF_F_LRO; if (changed && netif_running(dev)) { int rc; diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c index a83197d757c1..16d4d8e913c3 100644 --- a/drivers/net/ethernet/neterion/vxge/vxge-main.c +++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c @@ -2662,9 +2662,10 @@ static void vxge_poll_vp_lockup(unsigned long data) mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000); } -static u32 vxge_fix_features(struct net_device *dev, u32 features) +static netdev_features_t vxge_fix_features(struct net_device *dev, + netdev_features_t features) { - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; /* Enabling RTH requires some of the logic in vxge_device_register and a * vpath reset. Due to these restrictions, only allow modification @@ -2676,10 +2677,10 @@ static u32 vxge_fix_features(struct net_device *dev, u32 features) return features; } -static int vxge_set_features(struct net_device *dev, u32 features) +static int vxge_set_features(struct net_device *dev, netdev_features_t features) { struct vxgedev *vdev = netdev_priv(dev); - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; if (!(changed & NETIF_F_RXHASH)) return 0; diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index e8a5ae356407..01bb7bfe14e6 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -4536,7 +4536,7 @@ static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* return 0; } -static int nv_set_loopback(struct net_device *dev, u32 features) +static int nv_set_loopback(struct net_device *dev, netdev_features_t features) { struct fe_priv *np = netdev_priv(dev); unsigned long flags; @@ -4591,7 +4591,8 @@ static int nv_set_loopback(struct net_device *dev, u32 features) return retval; } -static u32 nv_fix_features(struct net_device *dev, u32 features) +static netdev_features_t nv_fix_features(struct net_device *dev, + netdev_features_t features) { /* vlan is dependent on rx checksum offload */ if (features & (NETIF_F_HW_VLAN_TX|NETIF_F_HW_VLAN_RX)) @@ -4600,7 +4601,7 @@ static u32 nv_fix_features(struct net_device *dev, u32 features) return features; } -static void nv_vlan_mode(struct net_device *dev, u32 features) +static void nv_vlan_mode(struct net_device *dev, netdev_features_t features) { struct fe_priv *np = get_nvpriv(dev); @@ -4621,11 +4622,11 @@ static void nv_vlan_mode(struct net_device *dev, u32 features) spin_unlock_irq(&np->lock); } -static int nv_set_features(struct net_device *dev, u32 features) +static int nv_set_features(struct net_device *dev, netdev_features_t features) { struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); - u32 changed = dev->features ^ features; + netdev_features_t changed = dev->features ^ features; int retval; if ((changed & NETIF_F_LOOPBACK) && netif_running(dev)) { diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 48406ca382f1..964e9c0948bc 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -2109,10 +2109,11 @@ static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu) * Returns * 0: HW state updated successfully */ -static int pch_gbe_set_features(struct net_device *netdev, u32 features) +static int pch_gbe_set_features(struct net_device *netdev, + netdev_features_t features) { struct pch_gbe_adapter *adapter = netdev_priv(netdev); - u32 changed = features ^ netdev->features; + netdev_features_t changed = features ^ netdev->features; if (!(changed & NETIF_F_RXCSUM)) return 0; diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c index 8cf3173ba488..7dd9a4b107e6 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c @@ -544,7 +544,8 @@ static void netxen_set_multicast_list(struct net_device *dev) adapter->set_multi(dev); } -static u32 netxen_fix_features(struct net_device *dev, u32 features) +static netdev_features_t netxen_fix_features(struct net_device *dev, + netdev_features_t features) { if (!(features & NETIF_F_RXCSUM)) { netdev_info(dev, "disabling LRO as RXCSUM is off\n"); @@ -555,7 +556,8 @@ static u32 netxen_fix_features(struct net_device *dev, u32 features) return features; } -static int netxen_set_features(struct net_device *dev, u32 features) +static int netxen_set_features(struct net_device *dev, + netdev_features_t features) { struct netxen_adapter *adapter = netdev_priv(dev); int hw_lro; diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h index 7ed53dbb8646..60976fc4ccc6 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h @@ -1466,8 +1466,9 @@ void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup); int qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu); int qlcnic_change_mtu(struct net_device *netdev, int new_mtu); -u32 qlcnic_fix_features(struct net_device *netdev, u32 features); -int qlcnic_set_features(struct net_device *netdev, u32 features); +netdev_features_t qlcnic_fix_features(struct net_device *netdev, + netdev_features_t features); +int qlcnic_set_features(struct net_device *netdev, netdev_features_t features); int qlcnic_config_hw_lro(struct qlcnic_adapter *adapter, int enable); int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable); int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c index bcb81e47543a..b528e52a8ee1 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c @@ -817,12 +817,13 @@ int qlcnic_change_mtu(struct net_device *netdev, int mtu) } -u32 qlcnic_fix_features(struct net_device *netdev, u32 features) +netdev_features_t qlcnic_fix_features(struct net_device *netdev, + netdev_features_t features) { struct qlcnic_adapter *adapter = netdev_priv(netdev); if ((adapter->flags & QLCNIC_ESWITCH_ENABLED)) { - u32 changed = features ^ netdev->features; + netdev_features_t changed = features ^ netdev->features; features ^= changed & (NETIF_F_ALL_CSUM | NETIF_F_RXCSUM); } @@ -833,10 +834,10 @@ u32 qlcnic_fix_features(struct net_device *netdev, u32 features) } -int qlcnic_set_features(struct net_device *netdev, u32 features) +int qlcnic_set_features(struct net_device *netdev, netdev_features_t features) { struct qlcnic_adapter *adapter = netdev_priv(netdev); - u32 changed = netdev->features ^ features; + netdev_features_t changed = netdev->features ^ features; int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0; if (!(changed & NETIF_F_LRO)) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 0bd163828e33..823f845ddc04 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -792,7 +792,7 @@ qlcnic_set_netdev_features(struct qlcnic_adapter *adapter, struct qlcnic_esw_func_cfg *esw_cfg) { struct net_device *netdev = adapter->netdev; - unsigned long features, vlan_features; + netdev_features_t features, vlan_features; features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_IPV6_CSUM | NETIF_F_GRO); diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index c92afcd912e2..1ce4e08037b8 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -2307,7 +2307,7 @@ static int ql_napi_poll_msix(struct napi_struct *napi, int budget) return work_done; } -static void qlge_vlan_mode(struct net_device *ndev, u32 features) +static void qlge_vlan_mode(struct net_device *ndev, netdev_features_t features) { struct ql_adapter *qdev = netdev_priv(ndev); @@ -2323,7 +2323,8 @@ static void qlge_vlan_mode(struct net_device *ndev, u32 features) } } -static u32 qlge_fix_features(struct net_device *ndev, u32 features) +static netdev_features_t qlge_fix_features(struct net_device *ndev, + netdev_features_t features) { /* * Since there is no support for separate rx/tx vlan accel @@ -2337,9 +2338,10 @@ static u32 qlge_fix_features(struct net_device *ndev, u32 features) return features; } -static int qlge_set_features(struct net_device *ndev, u32 features) +static int qlge_set_features(struct net_device *ndev, + netdev_features_t features) { - u32 changed = ndev->features ^ features; + netdev_features_t changed = ndev->features ^ features; if (changed & NETIF_F_HW_VLAN_RX) qlge_vlan_mode(ndev, features); diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index 6cfc5dc0f76e..87cff10f7be7 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -1392,7 +1392,7 @@ static void cp_set_msglevel(struct net_device *dev, u32 value) cp->msg_enable = value; } -static int cp_set_features(struct net_device *dev, u32 features) +static int cp_set_features(struct net_device *dev, netdev_features_t features) { struct cp_private *cp = netdev_priv(dev); unsigned long flags; diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index cdf66d68d849..2dfb0c0ea01b 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -1553,7 +1553,8 @@ static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) return ret; } -static u32 rtl8169_fix_features(struct net_device *dev, u32 features) +static netdev_features_t rtl8169_fix_features(struct net_device *dev, + netdev_features_t features) { struct rtl8169_private *tp = netdev_priv(dev); @@ -1567,7 +1568,8 @@ static u32 rtl8169_fix_features(struct net_device *dev, u32 features) return features; } -static int rtl8169_set_features(struct net_device *dev, u32 features) +static int rtl8169_set_features(struct net_device *dev, + netdev_features_t features) { struct rtl8169_private *tp = netdev_priv(dev); void __iomem *ioaddr = tp->mmio_addr; diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index d5731f1fe6d6..14e134d3b4d7 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1900,7 +1900,7 @@ static void efx_set_multicast_list(struct net_device *net_dev) /* Otherwise efx_start_port() will do this */ } -static int efx_set_features(struct net_device *net_dev, u32 data) +static int efx_set_features(struct net_device *net_dev, netdev_features_t data) { struct efx_nic *efx = netdev_priv(net_dev); diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index b8e251a1ee48..c49502bab6a3 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -908,7 +908,7 @@ struct efx_nic_type { unsigned int phys_addr_channels; unsigned int tx_dc_base; unsigned int rx_dc_base; - u32 offload_features; + netdev_features_t offload_features; }; /************************************************************************** diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 20546bbbb8db..643ca97a2d9a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1419,7 +1419,8 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu) return 0; } -static u32 stmmac_fix_features(struct net_device *dev, u32 features) +static netdev_features_t stmmac_fix_features(struct net_device *dev, + netdev_features_t features) { struct stmmac_priv *priv = netdev_priv(dev); diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 8592523b0bb5..3dd13d606d00 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -123,7 +123,7 @@ struct tun_struct { gid_t group; struct net_device *dev; - u32 set_features; + netdev_features_t set_features; #define TUN_USER_FEATURES (NETIF_F_HW_CSUM|NETIF_F_TSO_ECN|NETIF_F_TSO| \ NETIF_F_TSO6|NETIF_F_UFO) struct fasync_struct *fasync; @@ -454,7 +454,8 @@ tun_net_change_mtu(struct net_device *dev, int new_mtu) return 0; } -static u32 tun_net_fix_features(struct net_device *dev, u32 features) +static netdev_features_t tun_net_fix_features(struct net_device *dev, + netdev_features_t features) { struct tun_struct *tun = netdev_priv(dev); @@ -1196,7 +1197,7 @@ static int tun_get_iff(struct net *net, struct tun_struct *tun, * privs required. */ static int set_offload(struct tun_struct *tun, unsigned long arg) { - u32 features = 0; + netdev_features_t features = 0; if (arg & TUN_F_CSUM) { features |= NETIF_F_HW_CSUM; diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index a5b9b12ef268..7d62c39f65cf 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -728,7 +728,8 @@ static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu) } /* Enable or disable Rx checksum offload engine */ -static int smsc75xx_set_features(struct net_device *netdev, u32 features) +static int smsc75xx_set_features(struct net_device *netdev, + netdev_features_t features) { struct usbnet *dev = netdev_priv(netdev); struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index eff67678c5a6..56f3894d701a 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -516,7 +516,8 @@ static void smsc95xx_status(struct usbnet *dev, struct urb *urb) } /* Enable or disable Tx & Rx checksum offload engines */ -static int smsc95xx_set_features(struct net_device *netdev, u32 features) +static int smsc95xx_set_features(struct net_device *netdev, + netdev_features_t features) { struct usbnet *dev = netdev_priv(netdev); u32 read_buf; diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index e662cbc8bfbd..77f723415c9c 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c @@ -262,11 +262,11 @@ vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) } } -int vmxnet3_set_features(struct net_device *netdev, u32 features) +int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features) { struct vmxnet3_adapter *adapter = netdev_priv(netdev); unsigned long flags; - u32 changed = features ^ netdev->features; + netdev_features_t changed = features ^ netdev->features; if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_HW_VLAN_RX)) { if (features & NETIF_F_RXCSUM) diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h index b18eac1dccaa..ed54797db191 100644 --- a/drivers/net/vmxnet3/vmxnet3_int.h +++ b/drivers/net/vmxnet3/vmxnet3_int.h @@ -401,7 +401,7 @@ void vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter); int -vmxnet3_set_features(struct net_device *netdev, u32 features); +vmxnet3_set_features(struct net_device *netdev, netdev_features_t features); int vmxnet3_create_queues(struct vmxnet3_adapter *adapter, diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 182562952c79..0b5c18feb303 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -165,7 +165,8 @@ static int xenvif_change_mtu(struct net_device *dev, int mtu) return 0; } -static u32 xenvif_fix_features(struct net_device *dev, u32 features) +static netdev_features_t xenvif_fix_features(struct net_device *dev, + netdev_features_t features) { struct xenvif *vif = netdev_priv(dev); diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 226faab23603..a6e379fbf377 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -203,7 +203,7 @@ static void xennet_sysfs_delif(struct net_device *netdev); static int xennet_can_sg(struct net_device *dev) { - return dev->features & NETIF_F_SG; + return !!(dev->features & NETIF_F_SG); } @@ -1190,7 +1190,8 @@ static void xennet_uninit(struct net_device *dev) gnttab_free_grant_references(np->gref_rx_head); } -static u32 xennet_fix_features(struct net_device *dev, u32 features) +static netdev_features_t xennet_fix_features(struct net_device *dev, + netdev_features_t features) { struct netfront_info *np = netdev_priv(dev); int val; @@ -1216,7 +1217,8 @@ static u32 xennet_fix_features(struct net_device *dev, u32 features) return features; } -static int xennet_set_features(struct net_device *dev, u32 features) +static int xennet_set_features(struct net_device *dev, + netdev_features_t features) { if (!(features & NETIF_F_SG) && dev->mtu > ETH_DATA_LEN) { netdev_info(dev, "Reducing MTU because no SG offload"); diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index e4c1176ee25b..a64f9e789b0a 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -3202,7 +3202,8 @@ static int qeth_l3_stop(struct net_device *dev) return 0; } -static u32 qeth_l3_fix_features(struct net_device *dev, u32 features) +static netdev_features_t qeth_l3_fix_features(struct net_device *dev, + netdev_features_t features) { struct qeth_card *card = dev->ml_priv; @@ -3216,7 +3217,8 @@ static u32 qeth_l3_fix_features(struct net_device *dev, u32 features) return features; } -static int qeth_l3_set_features(struct net_device *dev, u32 features) +static int qeth_l3_set_features(struct net_device *dev, + netdev_features_t features) { struct qeth_card *card = dev->ml_priv; u32 changed = dev->features ^ features; diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 32640edf4d78..af5238121826 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -10,6 +10,10 @@ #ifndef _LINUX_NETDEV_FEATURES_H #define _LINUX_NETDEV_FEATURES_H +#include + +typedef u32 netdev_features_t; + /* Net device feature bits; if you change something, * also update netdev_features_strings[] in ethtool.c */ diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9cf6e90b171d..b35ffd735ecc 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -847,12 +847,13 @@ struct netdev_tc_txq { * Called to release previously enslaved netdev. * * Feature/offload setting functions. - * u32 (*ndo_fix_features)(struct net_device *dev, u32 features); + * netdev_features_t (*ndo_fix_features)(struct net_device *dev, + * netdev_features_t features); * Adjusts the requested feature flags according to device-specific * constraints, and returns the resulting flags. Must not modify * the device state. * - * int (*ndo_set_features)(struct net_device *dev, u32 features); + * int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); * Called to update device configuration to new features. Passed * feature set might be less than what was returned by ndo_fix_features()). * Must return >0 or -errno if it changed dev->features itself. @@ -946,10 +947,10 @@ struct net_device_ops { struct net_device *slave_dev); int (*ndo_del_slave)(struct net_device *dev, struct net_device *slave_dev); - u32 (*ndo_fix_features)(struct net_device *dev, - u32 features); + netdev_features_t (*ndo_fix_features)(struct net_device *dev, + netdev_features_t features); int (*ndo_set_features)(struct net_device *dev, - u32 features); + netdev_features_t features); }; /* @@ -999,13 +1000,13 @@ struct net_device { struct list_head unreg_list; /* currently active device features */ - u32 features; + netdev_features_t features; /* user-changeable features */ - u32 hw_features; + netdev_features_t hw_features; /* user-requested features */ - u32 wanted_features; + netdev_features_t wanted_features; /* mask of features inheritable by VLAN devices */ - u32 vlan_features; + netdev_features_t vlan_features; /* Interface index. Unique device identifier */ int ifindex; @@ -1439,7 +1440,7 @@ struct packet_type { struct packet_type *, struct net_device *); struct sk_buff *(*gso_segment)(struct sk_buff *skb, - u32 features); + netdev_features_t features); int (*gso_send_check)(struct sk_buff *skb); struct sk_buff **(*gro_receive)(struct sk_buff **head, struct sk_buff *skb); @@ -2444,7 +2445,8 @@ extern int netdev_set_master(struct net_device *dev, struct net_device *master) extern int netdev_set_bond_master(struct net_device *dev, struct net_device *master); extern int skb_checksum_help(struct sk_buff *skb); -extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features); +extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, + netdev_features_t features); #ifdef CONFIG_BUG extern void netdev_rx_csum_fault(struct net_device *dev); #else @@ -2471,11 +2473,13 @@ extern const char *netdev_drivername(const struct net_device *dev); extern void linkwatch_run_queue(void); -static inline u32 netdev_get_wanted_features(struct net_device *dev) +static inline netdev_features_t netdev_get_wanted_features( + struct net_device *dev) { return (dev->features & ~dev->hw_features) | dev->wanted_features; } -u32 netdev_increment_features(u32 all, u32 one, u32 mask); +netdev_features_t netdev_increment_features(netdev_features_t all, + netdev_features_t one, netdev_features_t mask); int __netdev_update_features(struct net_device *dev); void netdev_update_features(struct net_device *dev); void netdev_change_features(struct net_device *dev); @@ -2483,21 +2487,22 @@ void netdev_change_features(struct net_device *dev); void netif_stacked_transfer_operstate(const struct net_device *rootdev, struct net_device *dev); -u32 netif_skb_features(struct sk_buff *skb); +netdev_features_t netif_skb_features(struct sk_buff *skb); -static inline int net_gso_ok(u32 features, int gso_type) +static inline int net_gso_ok(netdev_features_t features, int gso_type) { - int feature = gso_type << NETIF_F_GSO_SHIFT; + netdev_features_t feature = gso_type << NETIF_F_GSO_SHIFT; return (features & feature) == feature; } -static inline int skb_gso_ok(struct sk_buff *skb, u32 features) +static inline int skb_gso_ok(struct sk_buff *skb, netdev_features_t features) { return net_gso_ok(features, skb_shinfo(skb)->gso_type) && (!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST)); } -static inline int netif_needs_gso(struct sk_buff *skb, int features) +static inline int netif_needs_gso(struct sk_buff *skb, + netdev_features_t features) { return skb_is_gso(skb) && (!skb_gso_ok(skb, features) || unlikely(skb->ip_summed != CHECKSUM_PARTIAL)); diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index abad8a0941e8..a10e487c0864 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -30,6 +30,7 @@ #include #include #include +#include /* Don't change this without changing skb_csum_unnecessary! */ #define CHECKSUM_NONE 0 @@ -2106,7 +2107,8 @@ extern void skb_split(struct sk_buff *skb, extern int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen); -extern struct sk_buff *skb_segment(struct sk_buff *skb, u32 features); +extern struct sk_buff *skb_segment(struct sk_buff *skb, + netdev_features_t features); static inline void *skb_header_pointer(const struct sk_buff *skb, int offset, int len, void *buffer) diff --git a/include/net/protocol.h b/include/net/protocol.h index 6f7eb800974a..e182e13d6391 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -38,7 +38,7 @@ struct net_protocol { void (*err_handler)(struct sk_buff *skb, u32 info); int (*gso_send_check)(struct sk_buff *skb); struct sk_buff *(*gso_segment)(struct sk_buff *skb, - u32 features); + netdev_features_t features); struct sk_buff **(*gro_receive)(struct sk_buff **head, struct sk_buff *skb); int (*gro_complete)(struct sk_buff *skb); @@ -57,7 +57,7 @@ struct inet6_protocol { int (*gso_send_check)(struct sk_buff *skb); struct sk_buff *(*gso_segment)(struct sk_buff *skb, - u32 features); + netdev_features_t features); struct sk_buff **(*gro_receive)(struct sk_buff **head, struct sk_buff *skb); int (*gro_complete)(struct sk_buff *skb); diff --git a/include/net/sock.h b/include/net/sock.h index 67cd4581b6da..1331008ad885 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -306,8 +306,8 @@ struct sock { kmemcheck_bitfield_end(flags); int sk_wmem_queued; gfp_t sk_allocation; - int sk_route_caps; - int sk_route_nocaps; + netdev_features_t sk_route_caps; + netdev_features_t sk_route_nocaps; int sk_gso_type; unsigned int sk_gso_max_size; int sk_rcvlowat; @@ -1393,7 +1393,7 @@ static inline int sk_can_gso(const struct sock *sk) extern void sk_setup_caps(struct sock *sk, struct dst_entry *dst); -static inline void sk_nocaps_add(struct sock *sk, int flags) +static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags) { sk->sk_route_nocaps |= flags; sk->sk_route_caps &= ~flags; diff --git a/include/net/tcp.h b/include/net/tcp.h index bb18c4d69aba..113160b84588 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1430,7 +1430,8 @@ extern struct request_sock_ops tcp6_request_sock_ops; extern void tcp_v4_destroy_sock(struct sock *sk); extern int tcp_v4_gso_send_check(struct sk_buff *skb); -extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb, u32 features); +extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb, + netdev_features_t features); extern struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb); extern struct sk_buff **tcp4_gro_receive(struct sk_buff **head, diff --git a/include/net/udp.h b/include/net/udp.h index 3b285f402f48..f54a5156b248 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -258,5 +258,6 @@ extern void udp4_proc_exit(void); extern void udp_init(void); extern int udp4_ufo_send_check(struct sk_buff *skb); -extern struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, u32 features); +extern struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, + netdev_features_t features); #endif /* _UDP_H */ diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 993599e66e5a..8e75003d62f6 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -777,6 +777,18 @@ char *uuid_string(char *buf, char *end, const u8 *addr, return string(buf, end, uuid, spec); } +static +char *netdev_feature_string(char *buf, char *end, const u8 *addr, + struct printf_spec spec) +{ + spec.flags |= SPECIAL | SMALL | ZEROPAD; + if (spec.field_width == -1) + spec.field_width = 2 + 2 * sizeof(netdev_features_t); + spec.base = 16; + + return number(buf, end, *(const netdev_features_t *)addr, spec); +} + int kptr_restrict __read_mostly; /* @@ -824,6 +836,7 @@ int kptr_restrict __read_mostly; * Do not use this feature without some mechanism to verify the * correctness of the format string and va_list arguments. * - 'K' For a kernel pointer that should be hidden from unprivileged users + * - 'NF' For a netdev_features_t * * Note: The difference between 'S' and 'F' is that on ia64 and ppc64 * function pointers are really function descriptors, which contain a @@ -896,6 +909,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, has_capability_noaudit(current, CAP_SYSLOG)))) ptr = NULL; break; + case 'N': + switch (fmt[1]) { + case 'F': + return netdev_feature_string(buf, end, ptr, spec); + } + break; } spec.flags |= SMALL; if (spec.field_width == -1) { diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 6a4e0cb897b7..2b5fcde1f629 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -591,7 +591,8 @@ static void vlan_dev_uninit(struct net_device *dev) } } -static u32 vlan_dev_fix_features(struct net_device *dev, u32 features) +static netdev_features_t vlan_dev_fix_features(struct net_device *dev, + netdev_features_t features) { struct net_device *real_dev = vlan_dev_info(dev)->real_dev; u32 old_features = features; diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index feb77ea7b58e..772bad34794c 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -186,7 +186,8 @@ static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info) strcpy(info->bus_info, "N/A"); } -static u32 br_fix_features(struct net_device *dev, u32 features) +static netdev_features_t br_fix_features(struct net_device *dev, + netdev_features_t features) { struct net_bridge *br = netdev_priv(dev); diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index f603e5b0b930..0a942fbccc9a 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -296,10 +296,11 @@ int br_min_mtu(const struct net_bridge *br) /* * Recomputes features using slave's features */ -u32 br_features_recompute(struct net_bridge *br, u32 features) +netdev_features_t br_features_recompute(struct net_bridge *br, + netdev_features_t features) { struct net_bridge_port *p; - u32 mask; + netdev_features_t mask; if (list_empty(&br->port_list)) return features; diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index d7d6fb05411f..4027029aa5e4 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -387,7 +387,8 @@ extern int br_add_if(struct net_bridge *br, extern int br_del_if(struct net_bridge *br, struct net_device *dev); extern int br_min_mtu(const struct net_bridge *br); -extern u32 br_features_recompute(struct net_bridge *br, u32 features); +extern netdev_features_t br_features_recompute(struct net_bridge *br, + netdev_features_t features); /* br_input.c */ extern int br_handle_frame_finish(struct sk_buff *skb); diff --git a/net/core/dev.c b/net/core/dev.c index 185e246d61fd..f1cca59c4638 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1914,7 +1914,8 @@ EXPORT_SYMBOL(skb_checksum_help); * It may return NULL if the skb requires no segmentation. This is * only possible when GSO is used for verifying header integrity. */ -struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features) +struct sk_buff *skb_gso_segment(struct sk_buff *skb, + netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT); struct packet_type *ptype; @@ -1944,9 +1945,9 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features) if (dev && dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) dev->ethtool_ops->get_drvinfo(dev, &info); - WARN(1, "%s: caps=(0x%lx, 0x%lx) len=%d data_len=%d ip_summed=%d\n", - info.driver, dev ? dev->features : 0L, - skb->sk ? skb->sk->sk_route_caps : 0L, + WARN(1, "%s: caps=(%pNF, %pNF) len=%d data_len=%d ip_summed=%d\n", + info.driver, dev ? &dev->features : NULL, + skb->sk ? &skb->sk->sk_route_caps : NULL, skb->len, skb->data_len, skb->ip_summed); if (skb_header_cloned(skb) && @@ -2055,7 +2056,7 @@ static void dev_gso_skb_destructor(struct sk_buff *skb) * This function segments the given skb and stores the list of segments * in skb->next. */ -static int dev_gso_segment(struct sk_buff *skb, int features) +static int dev_gso_segment(struct sk_buff *skb, netdev_features_t features) { struct sk_buff *segs; @@ -2094,7 +2095,7 @@ static inline void skb_orphan_try(struct sk_buff *skb) } } -static bool can_checksum_protocol(unsigned long features, __be16 protocol) +static bool can_checksum_protocol(netdev_features_t features, __be16 protocol) { return ((features & NETIF_F_GEN_CSUM) || ((features & NETIF_F_V4_CSUM) && @@ -2105,7 +2106,8 @@ static bool can_checksum_protocol(unsigned long features, __be16 protocol) protocol == htons(ETH_P_FCOE))); } -static u32 harmonize_features(struct sk_buff *skb, __be16 protocol, u32 features) +static netdev_features_t harmonize_features(struct sk_buff *skb, + __be16 protocol, netdev_features_t features) { if (!can_checksum_protocol(features, protocol)) { features &= ~NETIF_F_ALL_CSUM; @@ -2117,10 +2119,10 @@ static u32 harmonize_features(struct sk_buff *skb, __be16 protocol, u32 features return features; } -u32 netif_skb_features(struct sk_buff *skb) +netdev_features_t netif_skb_features(struct sk_buff *skb) { __be16 protocol = skb->protocol; - u32 features = skb->dev->features; + netdev_features_t features = skb->dev->features; if (protocol == htons(ETH_P_8021Q)) { struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data; @@ -2166,7 +2168,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, unsigned int skb_len; if (likely(!skb->next)) { - u32 features; + netdev_features_t features; /* * If device doesn't need skb->dst, release it right now while @@ -5350,7 +5352,8 @@ static void rollback_registered(struct net_device *dev) list_del(&single); } -static u32 netdev_fix_features(struct net_device *dev, u32 features) +static netdev_features_t netdev_fix_features(struct net_device *dev, + netdev_features_t features) { /* Fix illegal checksum combinations */ if ((features & NETIF_F_HW_CSUM) && @@ -5412,7 +5415,7 @@ static u32 netdev_fix_features(struct net_device *dev, u32 features) int __netdev_update_features(struct net_device *dev) { - u32 features; + netdev_features_t features; int err = 0; ASSERT_RTNL(); @@ -5428,16 +5431,16 @@ int __netdev_update_features(struct net_device *dev) if (dev->features == features) return 0; - netdev_dbg(dev, "Features changed: 0x%08x -> 0x%08x\n", - dev->features, features); + netdev_dbg(dev, "Features changed: %pNF -> %pNF\n", + &dev->features, &features); if (dev->netdev_ops->ndo_set_features) err = dev->netdev_ops->ndo_set_features(dev, features); if (unlikely(err < 0)) { netdev_err(dev, - "set_features() failed (%d); wanted 0x%08x, left 0x%08x\n", - err, features, dev->features); + "set_features() failed (%d); wanted %pNF, left %pNF\n", + err, &features, &dev->features); return -1; } @@ -6361,7 +6364,8 @@ static int dev_cpu_callback(struct notifier_block *nfb, * @one to the master device with current feature set @all. Will not * enable anything that is off in @mask. Returns the new feature set. */ -u32 netdev_increment_features(u32 all, u32 one, u32 mask) +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; diff --git a/net/core/ethtool.c b/net/core/ethtool.c index a354919a32ac..f135f1c92c9d 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -171,7 +171,7 @@ static void __ethtool_get_strings(struct net_device *dev, ops->get_strings(dev, stringset, data); } -static u32 ethtool_get_feature_mask(u32 eth_cmd) +static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd) { /* feature masks of legacy discrete ethtool ops */ @@ -205,7 +205,7 @@ static u32 ethtool_get_feature_mask(u32 eth_cmd) static int ethtool_get_one_feature(struct net_device *dev, char __user *useraddr, u32 ethcmd) { - u32 mask = ethtool_get_feature_mask(ethcmd); + netdev_features_t mask = ethtool_get_feature_mask(ethcmd); struct ethtool_value edata = { .cmd = ethcmd, .data = !!(dev->features & mask), @@ -220,7 +220,7 @@ static int ethtool_set_one_feature(struct net_device *dev, void __user *useraddr, u32 ethcmd) { struct ethtool_value edata; - u32 mask; + netdev_features_t mask; if (copy_from_user(&edata, useraddr, sizeof(edata))) return -EFAULT; @@ -260,8 +260,7 @@ static u32 __ethtool_get_flags(struct net_device *dev) static int __ethtool_set_flags(struct net_device *dev, u32 data) { - u32 features = 0; - u32 changed; + netdev_features_t features = 0, changed; if (data & ~ETH_ALL_FLAGS) return -EINVAL; diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 8d2c5b32f172..cbc003b2914a 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2670,7 +2670,7 @@ EXPORT_SYMBOL_GPL(skb_pull_rcsum); * a pointer to the first in a list of new skbs for the segments. * In case of error it returns ERR_PTR(err). */ -struct sk_buff *skb_segment(struct sk_buff *skb, u32 features) +struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features) { struct sk_buff *segs = NULL; struct sk_buff *tail = NULL; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index b2bbcd0ebd19..15dc4c4828de 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1250,7 +1250,8 @@ out: return err; } -static struct sk_buff *inet_gso_segment(struct sk_buff *skb, u32 features) +static struct sk_buff *inet_gso_segment(struct sk_buff *skb, + netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EINVAL); struct iphdr *iph; diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 34f5db1e1c8b..50c359645665 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2653,7 +2653,8 @@ int compat_tcp_getsockopt(struct sock *sk, int level, int optname, EXPORT_SYMBOL(compat_tcp_getsockopt); #endif -struct sk_buff *tcp_tso_segment(struct sk_buff *skb, u32 features) +struct sk_buff *tcp_tso_segment(struct sk_buff *skb, + netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EINVAL); struct tcphdr *th; diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 6854f581313f..b867ea23ece9 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2247,7 +2247,8 @@ int udp4_ufo_send_check(struct sk_buff *skb) return 0; } -struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, u32 features) +struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, + netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EINVAL); unsigned int mss; diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 282dc7a91f32..ee3319487c4f 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -769,7 +769,8 @@ out: return err; } -static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, u32 features) +static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, + netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EINVAL); struct ipv6hdr *ipv6h; diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index b4a4a15fa96f..ccfb0451b1c3 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1300,7 +1300,8 @@ static int udp6_ufo_send_check(struct sk_buff *skb) return 0; } -static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, u32 features) +static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, + netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EINVAL); unsigned int mss; -- cgit v1.2.3 From 0345e1864283207bc236120dd3e13ff2391fa85f Mon Sep 17 00:00:00 2001 From: Michał Mirosław Date: Wed, 16 Nov 2011 14:05:33 +0000 Subject: net: verify GSO flag bits against netdev features MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Michał Mirosław Signed-off-by: David S. Miller --- include/linux/netdevice.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index b35ffd735ecc..31da3bbe7b1b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2492,6 +2492,15 @@ netdev_features_t netif_skb_features(struct sk_buff *skb); static inline int net_gso_ok(netdev_features_t features, int gso_type) { netdev_features_t feature = gso_type << NETIF_F_GSO_SHIFT; + + /* check flags correspondence */ + BUILD_BUG_ON(SKB_GSO_TCPV4 != (NETIF_F_TSO >> NETIF_F_GSO_SHIFT)); + BUILD_BUG_ON(SKB_GSO_UDP != (NETIF_F_UFO >> NETIF_F_GSO_SHIFT)); + BUILD_BUG_ON(SKB_GSO_DODGY != (NETIF_F_GSO_ROBUST >> NETIF_F_GSO_SHIFT)); + BUILD_BUG_ON(SKB_GSO_TCP_ECN != (NETIF_F_TSO_ECN >> NETIF_F_GSO_SHIFT)); + BUILD_BUG_ON(SKB_GSO_TCPV6 != (NETIF_F_TSO6 >> NETIF_F_GSO_SHIFT)); + BUILD_BUG_ON(SKB_GSO_FCOE != (NETIF_F_FSO >> NETIF_F_GSO_SHIFT)); + return (features & feature) == feature; } -- cgit v1.2.3 From ccf5ff69fbbd8d877377f5786369cf5aa78a15fc Mon Sep 17 00:00:00 2001 From: david decotigny Date: Wed, 16 Nov 2011 12:15:10 +0000 Subject: net: new counter for tx_timeout errors in sysfs This adds the /sys/class/net/DEV/queues/Q/tx_timeout attribute containing the total number of timeout events on the given queue. It is always available with CONFIG_SYSFS, independently of CONFIG_RPS/XPS. Credits to Stephen Hemminger for a preliminary version of this patch. Tested: without CONFIG_SYSFS (compilation only) with sysfs and without CONFIG_RPS & CONFIG_XPS with sysfs and without CONFIG_RPS with sysfs and without CONFIG_XPS with defaults Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- include/linux/netdevice.h | 12 ++++++++++-- net/core/net-sysfs.c | 37 +++++++++++++++++++++++++++++++------ net/sched/sch_generic.c | 1 + 3 files changed, 42 insertions(+), 8 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 31da3bbe7b1b..4d5698aa828b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -532,7 +532,7 @@ struct netdev_queue { struct Qdisc *qdisc; unsigned long state; struct Qdisc *qdisc_sleeping; -#if defined(CONFIG_RPS) || defined(CONFIG_XPS) +#ifdef CONFIG_SYSFS struct kobject kobj; #endif #if defined(CONFIG_XPS) && defined(CONFIG_NUMA) @@ -547,6 +547,12 @@ struct netdev_queue { * please use this field instead of dev->trans_start */ unsigned long trans_start; + + /* + * Number of TX timeouts for this queue + * (/sys/class/net/DEV/Q/trans_timeout) + */ + unsigned long trans_timeout; } ____cacheline_aligned_in_smp; static inline int netdev_queue_numa_node_read(const struct netdev_queue *q) @@ -1109,9 +1115,11 @@ struct net_device { unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ -#if defined(CONFIG_RPS) || defined(CONFIG_XPS) +#ifdef CONFIG_SYSFS struct kset *queues_kset; +#endif +#ifdef CONFIG_RPS struct netdev_rx_queue *_rx; /* Number of RX queues allocated at register_netdev() time */ diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index a64382f201b8..602b1419998c 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -780,7 +780,7 @@ net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num) #endif } -#ifdef CONFIG_XPS +#ifdef CONFIG_SYSFS /* * netdev_queue sysfs structures and functions. */ @@ -826,6 +826,23 @@ static const struct sysfs_ops netdev_queue_sysfs_ops = { .store = netdev_queue_attr_store, }; +static ssize_t show_trans_timeout(struct netdev_queue *queue, + struct netdev_queue_attribute *attribute, + char *buf) +{ + unsigned long trans_timeout; + + spin_lock_irq(&queue->_xmit_lock); + trans_timeout = queue->trans_timeout; + spin_unlock_irq(&queue->_xmit_lock); + + return sprintf(buf, "%lu", trans_timeout); +} + +static struct netdev_queue_attribute queue_trans_timeout = + __ATTR(tx_timeout, S_IRUGO, show_trans_timeout, NULL); + +#ifdef CONFIG_XPS static inline unsigned int get_netdev_queue_index(struct netdev_queue *queue) { struct net_device *dev = queue->dev; @@ -1020,12 +1037,17 @@ error: static struct netdev_queue_attribute xps_cpus_attribute = __ATTR(xps_cpus, S_IRUGO | S_IWUSR, show_xps_map, store_xps_map); +#endif /* CONFIG_XPS */ static struct attribute *netdev_queue_default_attrs[] = { + &queue_trans_timeout.attr, +#ifdef CONFIG_XPS &xps_cpus_attribute.attr, +#endif NULL }; +#ifdef CONFIG_XPS static void netdev_queue_release(struct kobject *kobj) { struct netdev_queue *queue = to_netdev_queue(kobj); @@ -1076,10 +1098,13 @@ static void netdev_queue_release(struct kobject *kobj) memset(kobj, 0, sizeof(*kobj)); dev_put(queue->dev); } +#endif /* CONFIG_XPS */ static struct kobj_type netdev_queue_ktype = { .sysfs_ops = &netdev_queue_sysfs_ops, +#ifdef CONFIG_XPS .release = netdev_queue_release, +#endif .default_attrs = netdev_queue_default_attrs, }; @@ -1102,12 +1127,12 @@ static int netdev_queue_add_kobject(struct net_device *net, int index) return error; } -#endif /* CONFIG_XPS */ +#endif /* CONFIG_SYSFS */ int netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num) { -#ifdef CONFIG_XPS +#ifdef CONFIG_SYSFS int i; int error = 0; @@ -1125,14 +1150,14 @@ netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num) return error; #else return 0; -#endif +#endif /* CONFIG_SYSFS */ } static int register_queue_kobjects(struct net_device *net) { int error = 0, txq = 0, rxq = 0, real_rx = 0, real_tx = 0; -#if defined(CONFIG_RPS) || defined(CONFIG_XPS) +#ifdef CONFIG_SYSFS net->queues_kset = kset_create_and_add("queues", NULL, &net->dev.kobj); if (!net->queues_kset) @@ -1173,7 +1198,7 @@ static void remove_queue_kobjects(struct net_device *net) net_rx_queue_update_kobjects(net, real_rx, 0); netdev_queue_update_kobjects(net, real_tx, 0); -#if defined(CONFIG_RPS) || defined(CONFIG_XPS) +#ifdef CONFIG_SYSFS kset_unregister(net->queues_kset); #endif } diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 69fca2798804..79ac1458c2ba 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -246,6 +246,7 @@ static void dev_watchdog(unsigned long arg) time_after(jiffies, (trans_start + dev->watchdog_timeo))) { some_queue_timedout = 1; + txq->trans_timeout++; break; } } -- cgit v1.2.3 From adc9300e78e6091a7eaa1821213836379d4dbaa8 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 17 Nov 2011 03:13:26 +0000 Subject: net: use jump_label to shortcut RPS if not setup Most machines dont use RPS/RFS, and pay a fair amount of instructions in netif_receive_skb() / netif_rx() / get_rps_cpu() just to discover RPS/RFS is not setup. Add a jump_label named rps_needed. If no device rps_map or global rps_sock_flow_table is setup, netif_receive_skb() / netif_rx() do a single instruction instead of many ones, including conditional jumps. jmp +0 (if CONFIG_JUMP_LABEL=y) Signed-off-by: Eric Dumazet CC: Tom Herbert Signed-off-by: David S. Miller --- include/linux/netdevice.h | 5 +++++ net/core/dev.c | 21 +++++++++------------ net/core/net-sysfs.c | 7 +++++-- net/core/sysctl_net_core.c | 9 +++++++-- 4 files changed, 26 insertions(+), 16 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 4d5698aa828b..0bbe030fc014 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -214,6 +214,11 @@ enum { #include #include +#ifdef CONFIG_RPS +#include +extern struct jump_label_key rps_needed; +#endif + struct neighbour; struct neigh_parms; struct sk_buff; diff --git a/net/core/dev.c b/net/core/dev.c index 26c49d55e79d..f78959996148 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2711,6 +2711,8 @@ EXPORT_SYMBOL(__skb_get_rxhash); struct rps_sock_flow_table __rcu *rps_sock_flow_table __read_mostly; EXPORT_SYMBOL(rps_sock_flow_table); +struct jump_label_key rps_needed __read_mostly; + static struct rps_dev_flow * set_rps_cpu(struct net_device *dev, struct sk_buff *skb, struct rps_dev_flow *rflow, u16 next_cpu) @@ -2994,7 +2996,7 @@ int netif_rx(struct sk_buff *skb) trace_netif_rx(skb); #ifdef CONFIG_RPS - { + if (static_branch(&rps_needed)) { struct rps_dev_flow voidflow, *rflow = &voidflow; int cpu; @@ -3009,14 +3011,13 @@ int netif_rx(struct sk_buff *skb) rcu_read_unlock(); preempt_enable(); - } -#else + } else +#endif { unsigned int qtail; ret = enqueue_to_backlog(skb, get_cpu(), &qtail); put_cpu(); } -#endif return ret; } EXPORT_SYMBOL(netif_rx); @@ -3359,7 +3360,7 @@ int netif_receive_skb(struct sk_buff *skb) return NET_RX_SUCCESS; #ifdef CONFIG_RPS - { + if (static_branch(&rps_needed)) { struct rps_dev_flow voidflow, *rflow = &voidflow; int cpu, ret; @@ -3370,16 +3371,12 @@ int netif_receive_skb(struct sk_buff *skb) if (cpu >= 0) { ret = enqueue_to_backlog(skb, cpu, &rflow->last_qtail); rcu_read_unlock(); - } else { - rcu_read_unlock(); - ret = __netif_receive_skb(skb); + return ret; } - - return ret; + rcu_read_unlock(); } -#else - return __netif_receive_skb(skb); #endif + return __netif_receive_skb(skb); } EXPORT_SYMBOL(netif_receive_skb); diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 602b1419998c..db6c2f83633f 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -606,9 +606,12 @@ static ssize_t store_rps_map(struct netdev_rx_queue *queue, rcu_assign_pointer(queue->rps_map, map); spin_unlock(&rps_map_lock); - if (old_map) + if (map) + jump_label_inc(&rps_needed); + if (old_map) { kfree_rcu(old_map, rcu); - + jump_label_dec(&rps_needed); + } free_cpumask_var(mask); return len; } diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 77a65f031488..d05559d4d9cd 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -68,8 +68,13 @@ static int rps_sock_flow_sysctl(ctl_table *table, int write, if (sock_table != orig_sock_table) { rcu_assign_pointer(rps_sock_flow_table, sock_table); - synchronize_rcu(); - vfree(orig_sock_table); + if (sock_table) + jump_label_inc(&rps_needed); + if (orig_sock_table) { + jump_label_dec(&rps_needed); + synchronize_rcu(); + vfree(orig_sock_table); + } } } -- cgit v1.2.3 From 56c978f1da1f630ef18aa668a9748c6c23ab819b Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Fri, 18 Nov 2011 02:20:05 +0000 Subject: net: Remove LL_ALLOCATED_SPACE net: Remove LL_ALLOCATED_SPACE The macro LL_ALLOCATED_SPACE was ill-conceived. It applies the alignment to the sum of needed_headroom and needed_tailroom. As the amount that is then reserved for head room is needed_headroom with alignment, this means that the tail room left may be too small. Now that all uses of LL_ALLOCATED_SPACE have been removed, this patch finally removes the macro itself. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/netdevice.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0bbe030fc014..3eb383a9b5ed 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -279,16 +279,11 @@ struct hh_cache { * * We could use other alignment values, but we must maintain the * relationship HH alignment <= LL alignment. - * - * LL_ALLOCATED_SPACE also takes into account the tailroom the device - * may need. */ #define LL_RESERVED_SPACE(dev) \ ((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) #define LL_RESERVED_SPACE_EXTRA(dev,extra) \ ((((dev)->hard_header_len+(dev)->needed_headroom+(extra))&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) -#define LL_ALLOCATED_SPACE(dev) \ - ((((dev)->hard_header_len+(dev)->needed_headroom+(dev)->needed_tailroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) struct header_ops { int (*create) (struct sk_buff *skb, struct net_device *dev, -- cgit v1.2.3 From 5bc1421e34ecfe0bd4b26dc3232b7d5e25179144 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Tue, 22 Nov 2011 05:10:51 +0000 Subject: net: add network priority cgroup infrastructure (v4) This patch adds in the infrastructure code to create the network priority cgroup. The cgroup, in addition to the standard processes file creates two control files: 1) prioidx - This is a read-only file that exports the index of this cgroup. This is a value that is both arbitrary and unique to a cgroup in this subsystem, and is used to index the per-device priority map 2) priomap - This is a writeable file. On read it reports a table of 2-tuples where name is the name of a network interface and priority is indicates the priority assigned to frames egresessing on the named interface and originating from a pid in this cgroup This cgroup allows for skb priority to be set prior to a root qdisc getting selected. This is benenficial for DCB enabled systems, in that it allows for any application to use dcb configured priorities so without application modification Signed-off-by: Neil Horman Signed-off-by: John Fastabend CC: Robert Love CC: "David S. Miller" Signed-off-by: David S. Miller --- include/linux/cgroup_subsys.h | 8 + include/linux/netdevice.h | 4 + include/net/netprio_cgroup.h | 65 ++++++++ include/net/sock.h | 3 + net/Kconfig | 7 + net/core/Makefile | 1 + net/core/dev.c | 14 ++ net/core/netprio_cgroup.c | 344 ++++++++++++++++++++++++++++++++++++++++++ net/core/sock.c | 22 ++- net/socket.c | 2 + 10 files changed, 469 insertions(+), 1 deletion(-) create mode 100644 include/net/netprio_cgroup.h create mode 100644 net/core/netprio_cgroup.c (limited to 'include/linux/netdevice.h') diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index ac663c18776c..0bd390ce98b2 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -59,8 +59,16 @@ SUBSYS(net_cls) SUBSYS(blkio) #endif +/* */ + #ifdef CONFIG_CGROUP_PERF SUBSYS(perf) #endif /* */ + +#ifdef CONFIG_NETPRIO_CGROUP +SUBSYS(net_prio) +#endif + +/* */ diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 3eb383a9b5ed..999bb264fe27 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -50,6 +50,7 @@ #ifdef CONFIG_DCB #include #endif +#include #include @@ -1244,6 +1245,9 @@ struct net_device { #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) /* max exchange id for FCoE LRO by ddp */ unsigned int fcoe_ddp_xid; +#endif +#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) + struct netprio_map __rcu *priomap; #endif /* phy device may attach itself for hardware timestamping */ struct phy_device *phydev; diff --git a/include/net/netprio_cgroup.h b/include/net/netprio_cgroup.h new file mode 100644 index 000000000000..c432e99942af --- /dev/null +++ b/include/net/netprio_cgroup.h @@ -0,0 +1,65 @@ +/* + * netprio_cgroup.h Control Group Priority set + * + * + * Authors: Neil Horman + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#ifndef _NETPRIO_CGROUP_H +#define _NETPRIO_CGROUP_H +#include +#include +#include +#include + +struct cgroup_netprio_state +{ + struct cgroup_subsys_state css; + u32 prioidx; +}; + +struct netprio_map { + struct rcu_head rcu; + u32 priomap_len; + u32 priomap[]; +}; + +#ifdef CONFIG_CGROUPS + +#ifndef CONFIG_NETPRIO_CGROUP +extern int net_prio_subsys_id; +#endif + +extern void sock_update_netprioidx(struct sock *sk); + +static inline struct cgroup_netprio_state + *task_netprio_state(struct task_struct *p) +{ +#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) + return container_of(task_subsys_state(p, net_prio_subsys_id), + struct cgroup_netprio_state, css); +#else + return NULL; +#endif +} + +#else + +#define sock_update_netprioidx(sk) +#define skb_update_prio(skb) + +static inline struct cgroup_netprio_state + *task_netprio_state(struct task_struct *p) +{ + return NULL; +} + +#endif + +#endif /* _NET_CLS_CGROUP_H */ diff --git a/include/net/sock.h b/include/net/sock.h index 1c28f394d8ec..8ac338cb39ce 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -320,6 +320,9 @@ struct sock { unsigned short sk_ack_backlog; unsigned short sk_max_ack_backlog; __u32 sk_priority; +#ifdef CONFIG_CGROUPS + __u32 sk_cgrp_prioidx; +#endif struct pid *sk_peer_pid; const struct cred *sk_peer_cred; long sk_rcvtimeo; diff --git a/net/Kconfig b/net/Kconfig index a07314844238..63d2c5dc36ff 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -232,6 +232,13 @@ config XPS depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS default y +config NETPRIO_CGROUP + tristate "Network priority cgroup" + depends on CGROUPS + ---help--- + Cgroup subsystem for use in assigning processes to network priorities on + a per-interface basis + config HAVE_BPF_JIT bool diff --git a/net/core/Makefile b/net/core/Makefile index 0d357b1c4e57..3606d40aae62 100644 --- a/net/core/Makefile +++ b/net/core/Makefile @@ -19,3 +19,4 @@ obj-$(CONFIG_FIB_RULES) += fib_rules.o obj-$(CONFIG_TRACEPOINTS) += net-traces.o obj-$(CONFIG_NET_DROP_MONITOR) += drop_monitor.o obj-$(CONFIG_NETWORK_PHY_TIMESTAMPING) += timestamping.o +obj-$(CONFIG_NETPRIO_CGROUP) += netprio_cgroup.o diff --git a/net/core/dev.c b/net/core/dev.c index f78959996148..8afb244b205f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2449,6 +2449,18 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, return rc; } +#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) +static void skb_update_prio(struct sk_buff *skb) +{ + struct netprio_map *map = rcu_dereference(skb->dev->priomap); + + if ((!skb->priority) && (skb->sk) && map) + skb->priority = map->priomap[skb->sk->sk_cgrp_prioidx]; +} +#else +#define skb_update_prio(skb) +#endif + static DEFINE_PER_CPU(int, xmit_recursion); #define RECURSION_LIMIT 10 @@ -2489,6 +2501,8 @@ int dev_queue_xmit(struct sk_buff *skb) */ rcu_read_lock_bh(); + skb_update_prio(skb); + txq = dev_pick_tx(dev, skb); q = rcu_dereference_bh(txq->qdisc); diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c new file mode 100644 index 000000000000..72ad0bc6841e --- /dev/null +++ b/net/core/netprio_cgroup.c @@ -0,0 +1,344 @@ +/* + * net/core/netprio_cgroup.c Priority Control Group + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Authors: Neil Horman + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss, + struct cgroup *cgrp); +static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp); +static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp); + +struct cgroup_subsys net_prio_subsys = { + .name = "net_prio", + .create = cgrp_create, + .destroy = cgrp_destroy, + .populate = cgrp_populate, +#ifdef CONFIG_NETPRIO_CGROUP + .subsys_id = net_prio_subsys_id, +#endif + .module = THIS_MODULE +}; + +#define PRIOIDX_SZ 128 + +static unsigned long prioidx_map[PRIOIDX_SZ]; +static DEFINE_SPINLOCK(prioidx_map_lock); +static atomic_t max_prioidx = ATOMIC_INIT(0); + +static inline struct cgroup_netprio_state *cgrp_netprio_state(struct cgroup *cgrp) +{ + return container_of(cgroup_subsys_state(cgrp, net_prio_subsys_id), + struct cgroup_netprio_state, css); +} + +static int get_prioidx(u32 *prio) +{ + unsigned long flags; + u32 prioidx; + + spin_lock_irqsave(&prioidx_map_lock, flags); + prioidx = find_first_zero_bit(prioidx_map, sizeof(unsigned long) * PRIOIDX_SZ); + set_bit(prioidx, prioidx_map); + spin_unlock_irqrestore(&prioidx_map_lock, flags); + if (prioidx == sizeof(unsigned long) * PRIOIDX_SZ) + return -ENOSPC; + + atomic_set(&max_prioidx, prioidx); + *prio = prioidx; + return 0; +} + +static void put_prioidx(u32 idx) +{ + unsigned long flags; + + spin_lock_irqsave(&prioidx_map_lock, flags); + clear_bit(idx, prioidx_map); + spin_unlock_irqrestore(&prioidx_map_lock, flags); +} + +static void extend_netdev_table(struct net_device *dev, u32 new_len) +{ + size_t new_size = sizeof(struct netprio_map) + + ((sizeof(u32) * new_len)); + struct netprio_map *new_priomap = kzalloc(new_size, GFP_KERNEL); + struct netprio_map *old_priomap; + int i; + + old_priomap = rtnl_dereference(dev->priomap); + + if (!new_priomap) { + printk(KERN_WARNING "Unable to alloc new priomap!\n"); + return; + } + + for (i = 0; + old_priomap && (i < old_priomap->priomap_len); + i++) + new_priomap->priomap[i] = old_priomap->priomap[i]; + + new_priomap->priomap_len = new_len; + + rcu_assign_pointer(dev->priomap, new_priomap); + if (old_priomap) + kfree_rcu(old_priomap, rcu); +} + +static void update_netdev_tables(void) +{ + struct net_device *dev; + u32 max_len = atomic_read(&max_prioidx); + struct netprio_map *map; + + rtnl_lock(); + for_each_netdev(&init_net, dev) { + map = rtnl_dereference(dev->priomap); + if ((!map) || + (map->priomap_len < max_len)) + extend_netdev_table(dev, max_len); + } + rtnl_unlock(); +} + +static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss, + struct cgroup *cgrp) +{ + struct cgroup_netprio_state *cs; + int ret; + + cs = kzalloc(sizeof(*cs), GFP_KERNEL); + if (!cs) + return ERR_PTR(-ENOMEM); + + if (cgrp->parent && cgrp_netprio_state(cgrp->parent)->prioidx) { + kfree(cs); + return ERR_PTR(-EINVAL); + } + + ret = get_prioidx(&cs->prioidx); + if (ret != 0) { + printk(KERN_WARNING "No space in priority index array\n"); + kfree(cs); + return ERR_PTR(ret); + } + + return &cs->css; +} + +static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp) +{ + struct cgroup_netprio_state *cs; + struct net_device *dev; + struct netprio_map *map; + + cs = cgrp_netprio_state(cgrp); + rtnl_lock(); + for_each_netdev(&init_net, dev) { + map = rtnl_dereference(dev->priomap); + if (map) + map->priomap[cs->prioidx] = 0; + } + rtnl_unlock(); + put_prioidx(cs->prioidx); + kfree(cs); +} + +static u64 read_prioidx(struct cgroup *cgrp, struct cftype *cft) +{ + return (u64)cgrp_netprio_state(cgrp)->prioidx; +} + +static int read_priomap(struct cgroup *cont, struct cftype *cft, + struct cgroup_map_cb *cb) +{ + struct net_device *dev; + u32 prioidx = cgrp_netprio_state(cont)->prioidx; + u32 priority; + struct netprio_map *map; + + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { + map = rcu_dereference(dev->priomap); + priority = map ? map->priomap[prioidx] : 0; + cb->fill(cb, dev->name, priority); + } + rcu_read_unlock(); + return 0; +} + +static int write_priomap(struct cgroup *cgrp, struct cftype *cft, + const char *buffer) +{ + char *devname = kstrdup(buffer, GFP_KERNEL); + int ret = -EINVAL; + u32 prioidx = cgrp_netprio_state(cgrp)->prioidx; + unsigned long priority; + char *priostr; + struct net_device *dev; + struct netprio_map *map; + + if (!devname) + return -ENOMEM; + + /* + * Minimally sized valid priomap string + */ + if (strlen(devname) < 3) + goto out_free_devname; + + priostr = strstr(devname, " "); + if (!priostr) + goto out_free_devname; + + /* + *Separate the devname from the associated priority + *and advance the priostr poitner to the priority value + */ + *priostr = '\0'; + priostr++; + + /* + * If the priostr points to NULL, we're at the end of the passed + * in string, and its not a valid write + */ + if (*priostr == '\0') + goto out_free_devname; + + ret = kstrtoul(priostr, 10, &priority); + if (ret < 0) + goto out_free_devname; + + ret = -ENODEV; + + dev = dev_get_by_name(&init_net, devname); + if (!dev) + goto out_free_devname; + + update_netdev_tables(); + ret = 0; + rcu_read_lock(); + map = rcu_dereference(dev->priomap); + if (map) + map->priomap[prioidx] = priority; + rcu_read_unlock(); + dev_put(dev); + +out_free_devname: + kfree(devname); + return ret; +} + +static struct cftype ss_files[] = { + { + .name = "prioidx", + .read_u64 = read_prioidx, + }, + { + .name = "ifpriomap", + .read_map = read_priomap, + .write_string = write_priomap, + }, +}; + +static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp) +{ + return cgroup_add_files(cgrp, ss, ss_files, ARRAY_SIZE(ss_files)); +} + +static int netprio_device_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = ptr; + struct netprio_map *old; + u32 max_len = atomic_read(&max_prioidx); + + /* + * Note this is called with rtnl_lock held so we have update side + * protection on our rcu assignments + */ + + switch (event) { + + case NETDEV_REGISTER: + if (max_len) + extend_netdev_table(dev, max_len); + break; + case NETDEV_UNREGISTER: + old = rtnl_dereference(dev->priomap); + rcu_assign_pointer(dev->priomap, NULL); + if (old) + kfree_rcu(old, rcu); + break; + } + return NOTIFY_DONE; +} + +static struct notifier_block netprio_device_notifier = { + .notifier_call = netprio_device_event +}; + +static int __init init_cgroup_netprio(void) +{ + int ret; + + ret = cgroup_load_subsys(&net_prio_subsys); + if (ret) + goto out; +#ifndef CONFIG_NETPRIO_CGROUP + smp_wmb(); + net_prio_subsys_id = net_prio_subsys.subsys_id; +#endif + + register_netdevice_notifier(&netprio_device_notifier); + +out: + return ret; +} + +static void __exit exit_cgroup_netprio(void) +{ + struct netprio_map *old; + struct net_device *dev; + + unregister_netdevice_notifier(&netprio_device_notifier); + + cgroup_unload_subsys(&net_prio_subsys); + +#ifndef CONFIG_NETPRIO_CGROUP + net_prio_subsys_id = -1; + synchronize_rcu(); +#endif + + rtnl_lock(); + for_each_netdev(&init_net, dev) { + old = rtnl_dereference(dev->priomap); + rcu_assign_pointer(dev->priomap, NULL); + if (old) + kfree_rcu(old, rcu); + } + rtnl_unlock(); +} + +module_init(init_cgroup_netprio); +module_exit(exit_cgroup_netprio); +MODULE_LICENSE("GPL v2"); diff --git a/net/core/sock.c b/net/core/sock.c index 9a8b3fac1401..16069139797c 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -125,6 +125,7 @@ #include #include #include +#include #include @@ -221,10 +222,16 @@ __u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX; int sysctl_optmem_max __read_mostly = sizeof(unsigned long)*(2*UIO_MAXIOV+512); EXPORT_SYMBOL(sysctl_optmem_max); -#if defined(CONFIG_CGROUPS) && !defined(CONFIG_NET_CLS_CGROUP) +#if defined(CONFIG_CGROUPS) +#if !defined(CONFIG_NET_CLS_CGROUP) int net_cls_subsys_id = -1; EXPORT_SYMBOL_GPL(net_cls_subsys_id); #endif +#if !defined(CONFIG_NETPRIO_CGROUP) +int net_prio_subsys_id = -1; +EXPORT_SYMBOL_GPL(net_prio_subsys_id); +#endif +#endif static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen) { @@ -1120,6 +1127,18 @@ void sock_update_classid(struct sock *sk) sk->sk_classid = classid; } EXPORT_SYMBOL(sock_update_classid); + +void sock_update_netprioidx(struct sock *sk) +{ + struct cgroup_netprio_state *state; + if (in_interrupt()) + return; + rcu_read_lock(); + state = task_netprio_state(current); + sk->sk_cgrp_prioidx = state ? state->prioidx : 0; + rcu_read_unlock(); +} +EXPORT_SYMBOL_GPL(sock_update_netprioidx); #endif /** @@ -1147,6 +1166,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority, atomic_set(&sk->sk_wmem_alloc, 1); sock_update_classid(sk); + sock_update_netprioidx(sk); } return sk; diff --git a/net/socket.c b/net/socket.c index 425ef4270460..e62b4f055071 100644 --- a/net/socket.c +++ b/net/socket.c @@ -551,6 +551,8 @@ static inline int __sock_sendmsg_nosec(struct kiocb *iocb, struct socket *sock, sock_update_classid(sock->sk); + sock_update_netprioidx(sock->sk); + si->sock = sock; si->scm = NULL; si->msg = msg; -- cgit v1.2.3 From cf50dcc24f82a6dc2bce523eec2a979eb1b106e2 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 25 Nov 2011 14:32:52 +0000 Subject: dsa: Change dsa_uses_{dsa, trailer}_tags() into inline functions eth_type_trans() will use these functions if DSA is enabled, which blocks building DSA as a module. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- include/net/dsa.h | 53 +++++++++++++++++++++++++++++++++++++++++++++-- net/dsa/dsa.c | 23 -------------------- net/dsa/dsa_priv.h | 33 ----------------------------- 4 files changed, 52 insertions(+), 59 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 999bb264fe27..63721a69804c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1080,7 +1080,7 @@ struct net_device { struct vlan_group __rcu *vlgrp; /* VLAN group */ #endif #ifdef CONFIG_NET_DSA - void *dsa_ptr; /* dsa specific data */ + struct dsa_switch_tree *dsa_ptr; /* dsa specific data */ #endif void *atalk_ptr; /* AppleTalk link */ struct in_device __rcu *ip_ptr; /* IPv4 specific data */ diff --git a/include/net/dsa.h b/include/net/dsa.h index 839f768f9e35..32a1b49e8a8c 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -11,6 +11,9 @@ #ifndef __LINUX_NET_DSA_H #define __LINUX_NET_DSA_H +#include +#include + #define DSA_MAX_SWITCHES 4 #define DSA_MAX_PORTS 12 @@ -54,8 +57,54 @@ struct dsa_platform_data { struct dsa_chip_data *chip; }; -extern bool dsa_uses_dsa_tags(void *dsa_ptr); -extern bool dsa_uses_trailer_tags(void *dsa_ptr); +struct dsa_switch_tree { + /* + * Configuration data for the platform device that owns + * this dsa switch tree instance. + */ + struct dsa_platform_data *pd; + + /* + * Reference to network device to use, and which tagging + * protocol to use. + */ + struct net_device *master_netdev; + __be16 tag_protocol; + + /* + * The switch and port to which the CPU is attached. + */ + s8 cpu_switch; + s8 cpu_port; + + /* + * Link state polling. + */ + int link_poll_needed; + struct work_struct link_poll_work; + struct timer_list link_poll_timer; + + /* + * Data for the individual switch chips. + */ + struct dsa_switch *ds[DSA_MAX_SWITCHES]; +}; + +/* + * The original DSA tag format and some other tag formats have no + * ethertype, which means that we need to add a little hack to the + * networking receive path to make sure that received frames get + * the right ->protocol assigned to them when one of those tag + * formats is in use. + */ +static inline bool dsa_uses_dsa_tags(struct dsa_switch_tree *dst) +{ + return !!(dst->tag_protocol == htons(ETH_P_DSA)); +} +static inline bool dsa_uses_trailer_tags(struct dsa_switch_tree *dst) +{ + return !!(dst->tag_protocol == htons(ETH_P_TRAILER)); +} #endif diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 0dc1589343c3..66f5c0460cd3 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -199,29 +199,6 @@ static void dsa_switch_destroy(struct dsa_switch *ds) } -/* hooks for ethertype-less tagging formats *********************************/ -/* - * The original DSA tag format and some other tag formats have no - * ethertype, which means that we need to add a little hack to the - * networking receive path to make sure that received frames get - * the right ->protocol assigned to them when one of those tag - * formats is in use. - */ -bool dsa_uses_dsa_tags(void *dsa_ptr) -{ - struct dsa_switch_tree *dst = dsa_ptr; - - return !!(dst->tag_protocol == htons(ETH_P_DSA)); -} - -bool dsa_uses_trailer_tags(void *dsa_ptr) -{ - struct dsa_switch_tree *dst = dsa_ptr; - - return !!(dst->tag_protocol == htons(ETH_P_TRAILER)); -} - - /* link polling *************************************************************/ static void dsa_link_poll_work(struct work_struct *ugly) { diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 4b0ea0540442..a45186cb6daf 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -48,39 +48,6 @@ struct dsa_switch { struct net_device *ports[DSA_MAX_PORTS]; }; -struct dsa_switch_tree { - /* - * Configuration data for the platform device that owns - * this dsa switch tree instance. - */ - struct dsa_platform_data *pd; - - /* - * Reference to network device to use, and which tagging - * protocol to use. - */ - struct net_device *master_netdev; - __be16 tag_protocol; - - /* - * The switch and port to which the CPU is attached. - */ - s8 cpu_switch; - s8 cpu_port; - - /* - * Link state polling. - */ - int link_poll_needed; - struct work_struct link_poll_work; - struct timer_list link_poll_timer; - - /* - * Data for the individual switch chips. - */ - struct dsa_switch *ds[DSA_MAX_SWITCHES]; -}; - static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) { return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port); -- cgit v1.2.3 From 34a430d7bd26b35ca3a7d3fc83663de8ea6e33f6 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 25 Nov 2011 14:38:38 +0000 Subject: dsa: Allow core and drivers to be built as modules Change the kconfig types to tristate and adjust the condition for declaring net_device::dsa_ptr to allow for this. Adjust the makefile so that if NET_DSA_MV88E6123_61_65=y and NET_DSA_MV88E6131=m or vice versa then both drivers are built-in. We could leave these options as bool and make NET_DSA_MV88E6XXX a user-selected option, but that would break existing configurations. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- net/dsa/Kconfig | 10 +++++----- net/dsa/Makefile | 8 ++++++-- 3 files changed, 12 insertions(+), 8 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 63721a69804c..87f7353a2407 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1079,7 +1079,7 @@ struct net_device { #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) struct vlan_group __rcu *vlgrp; /* VLAN group */ #endif -#ifdef CONFIG_NET_DSA +#if IS_ENABLED(CONFIG_NET_DSA) struct dsa_switch_tree *dsa_ptr; /* dsa specific data */ #endif void *atalk_ptr; /* AppleTalk link */ diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig index c53ded2a98df..7e12303827e8 100644 --- a/net/dsa/Kconfig +++ b/net/dsa/Kconfig @@ -1,5 +1,5 @@ menuconfig NET_DSA - bool "Distributed Switch Architecture support" + tristate "Distributed Switch Architecture support" default n depends on EXPERIMENTAL && NETDEVICES && !S390 select PHYLIB @@ -26,11 +26,11 @@ config NET_DSA_TAG_TRAILER # switch drivers config NET_DSA_MV88E6XXX - bool + tristate default n config NET_DSA_MV88E6060 - bool "Marvell 88E6060 ethernet switch chip support" + tristate "Marvell 88E6060 ethernet switch chip support" select NET_DSA_TAG_TRAILER ---help--- This enables support for the Marvell 88E6060 ethernet switch @@ -41,7 +41,7 @@ config NET_DSA_MV88E6XXX_NEED_PPU default n config NET_DSA_MV88E6131 - bool "Marvell 88E6085/6095/6095F/6131 ethernet switch chip support" + tristate "Marvell 88E6085/6095/6095F/6131 ethernet switch chip support" select NET_DSA_MV88E6XXX select NET_DSA_MV88E6XXX_NEED_PPU select NET_DSA_TAG_DSA @@ -50,7 +50,7 @@ config NET_DSA_MV88E6131 ethernet switch chips. config NET_DSA_MV88E6123_61_65 - bool "Marvell 88E6123/6161/6165 ethernet switch chip support" + tristate "Marvell 88E6123/6161/6165 ethernet switch chip support" select NET_DSA_MV88E6XXX select NET_DSA_TAG_EDSA ---help--- diff --git a/net/dsa/Makefile b/net/dsa/Makefile index 5c48ac556997..191dd482e557 100644 --- a/net/dsa/Makefile +++ b/net/dsa/Makefile @@ -11,5 +11,9 @@ dsa_core-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o obj-$(CONFIG_NET_DSA_MV88E6XXX) += mv88e6xxx_drv.o mv88e6xxx_drv-y += mv88e6xxx.o -mv88e6xxx_drv-$(CONFIG_NET_DSA_MV88E6123_61_65) += mv88e6123_61_65.o -mv88e6xxx_drv-$(CONFIG_NET_DSA_MV88E6131) += mv88e6131.o +ifdef CONFIG_NET_DSA_MV88E6123_61_65 +mv88e6xxx_drv-y += mv88e6123_61_65.o +endif +ifdef CONFIG_NET_DSA_MV88E6131 +mv88e6xxx_drv-y += mv88e6131.o +endif -- cgit v1.2.3 From d11ead75672d655652dbfc1b1a2c359e5b65536d Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 25 Nov 2011 14:40:26 +0000 Subject: net: Use IS_ENABLED() in netdevice.h as appropriate Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/netdevice.h | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 87f7353a2407..ac9a4b9344ca 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -144,22 +144,20 @@ static inline bool dev_xmit_complete(int rc) * used. */ -#if defined(CONFIG_WLAN) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE) +#if defined(CONFIG_WLAN) || IS_ENABLED(CONFIG_AX25) # if defined(CONFIG_MAC80211_MESH) # define LL_MAX_HEADER 128 # else # define LL_MAX_HEADER 96 # endif -#elif defined(CONFIG_TR) || defined(CONFIG_TR_MODULE) +#elif IS_ENABLED(CONFIG_TR) # define LL_MAX_HEADER 48 #else # define LL_MAX_HEADER 32 #endif -#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) && \ - !defined(CONFIG_NET_IPGRE) && !defined(CONFIG_NET_IPGRE_MODULE) && \ - !defined(CONFIG_IPV6_SIT) && !defined(CONFIG_IPV6_SIT_MODULE) && \ - !defined(CONFIG_IPV6_TUNNEL) && !defined(CONFIG_IPV6_TUNNEL_MODULE) +#if !IS_ENABLED(CONFIG_NET_IPIP) && !IS_ENABLED(CONFIG_NET_IPGRE) && \ + !IS_ENABLED(CONFIG_IPV6_SIT) && !IS_ENABLED(CONFIG_IPV6_TUNNEL) #define MAX_HEADER LL_MAX_HEADER #else #define MAX_HEADER (LL_MAX_HEADER + 48) @@ -922,7 +920,7 @@ struct net_device_ops { int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb); int (*ndo_setup_tc)(struct net_device *dev, u8 tc); -#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) +#if IS_ENABLED(CONFIG_FCOE) int (*ndo_fcoe_enable)(struct net_device *dev); int (*ndo_fcoe_disable)(struct net_device *dev); int (*ndo_fcoe_ddp_setup)(struct net_device *dev, @@ -937,7 +935,7 @@ struct net_device_ops { unsigned int sgc); #endif -#if defined(CONFIG_LIBFCOE) || defined(CONFIG_LIBFCOE_MODULE) +#if IS_ENABLED(CONFIG_LIBFCOE) #define NETDEV_FCOE_WWNN 0 #define NETDEV_FCOE_WWPN 1 int (*ndo_fcoe_get_wwn)(struct net_device *dev, @@ -1076,7 +1074,7 @@ struct net_device { /* Protocol specific pointers */ -#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) +#if IS_ENABLED(CONFIG_VLAN_8021Q) struct vlan_group __rcu *vlgrp; /* VLAN group */ #endif #if IS_ENABLED(CONFIG_NET_DSA) @@ -1242,7 +1240,7 @@ struct net_device { struct netdev_tc_txq tc_to_txq[TC_MAX_QUEUE]; u8 prio_tc_map[TC_BITMASK + 1]; -#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) +#if IS_ENABLED(CONFIG_FCOE) /* max exchange id for FCoE LRO by ddp */ unsigned int fcoe_ddp_xid; #endif -- cgit v1.2.3 From 5cac98dd06bc43a7baab3523184f70fd359e9f35 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 27 Nov 2011 21:14:46 +0000 Subject: net: Fix corruption in /proc/*/net/dev_mcast I just hit this during my testing. Isn't there another bug lurking? BUG kmalloc-8: Redzone overwritten INFO: 0xc0000000de9dec48-0xc0000000de9dec4b. First byte 0x0 instead of 0xcc INFO: Allocated in .__seq_open_private+0x30/0xa0 age=0 cpu=5 pid=3896 .__kmalloc+0x1e0/0x2d0 .__seq_open_private+0x30/0xa0 .seq_open_net+0x60/0xe0 .dev_mc_seq_open+0x4c/0x70 .proc_reg_open+0xd8/0x260 .__dentry_open.clone.11+0x2b8/0x400 .do_last+0xf4/0x950 .path_openat+0xf8/0x480 .do_filp_open+0x48/0xc0 .do_sys_open+0x140/0x250 syscall_exit+0x0/0x40 dev_mc_seq_ops uses dev_seq_start/next/stop but only allocates sizeof(struct seq_net_private) of private data, whereas it expects sizeof(struct dev_iter_state): struct dev_iter_state { struct seq_net_private p; unsigned int pos; /* bucket << BUCKET_SPACE + offset */ }; Create dev_seq_open_ops and use it so we don't have to expose struct dev_iter_state. [ Problem added by commit f04565ddf52e4 (dev: use name hash for dev_seq_ops) -Eric ] Signed-off-by: Anton Blanchard Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ net/core/dev.c | 6 ++++++ net/core/dev_addr_lists.c | 3 +-- 3 files changed, 9 insertions(+), 2 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index cbeb5867cff7..a82ad4dd306a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2536,6 +2536,8 @@ extern void net_disable_timestamp(void); extern void *dev_seq_start(struct seq_file *seq, loff_t *pos); extern void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos); extern void dev_seq_stop(struct seq_file *seq, void *v); +extern int dev_seq_open_ops(struct inode *inode, struct file *file, + const struct seq_operations *ops); #endif extern int netdev_class_create_file(struct class_attribute *class_attr); diff --git a/net/core/dev.c b/net/core/dev.c index 6ba50a1e404c..1482eea0bbf0 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4282,6 +4282,12 @@ static int dev_seq_open(struct inode *inode, struct file *file) sizeof(struct dev_iter_state)); } +int dev_seq_open_ops(struct inode *inode, struct file *file, + const struct seq_operations *ops) +{ + return seq_open_net(inode, file, ops, sizeof(struct dev_iter_state)); +} + static const struct file_operations dev_seq_fops = { .owner = THIS_MODULE, .open = dev_seq_open, diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c index 277faef9148d..febba516db62 100644 --- a/net/core/dev_addr_lists.c +++ b/net/core/dev_addr_lists.c @@ -696,8 +696,7 @@ static const struct seq_operations dev_mc_seq_ops = { static int dev_mc_seq_open(struct inode *inode, struct file *file) { - return seq_open_net(inode, file, &dev_mc_seq_ops, - sizeof(struct seq_net_private)); + return dev_seq_open_ops(inode, file, &dev_mc_seq_ops); } static const struct file_operations dev_mc_seq_fops = { -- cgit v1.2.3 From 7346649826382b769cfadf4a2fe8a84d060c55e9 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 28 Nov 2011 16:32:44 +0000 Subject: net: Add queue state xoff flag for stack Create separate queue state flags so that either the stack or drivers can turn on XOFF. Added a set of functions used in the stack to determine if a queue is really stopped (either by stack or driver) Signed-off-by: Tom Herbert Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 41 ++++++++++++++++++++++++++++++----------- net/core/dev.c | 4 ++-- net/core/netpoll.c | 4 ++-- net/core/pktgen.c | 2 +- net/sched/sch_generic.c | 8 ++++---- net/sched/sch_multiq.c | 6 ++++-- net/sched/sch_teql.c | 6 +++--- 7 files changed, 46 insertions(+), 25 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ac9a4b9344ca..d19f93265cac 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -517,11 +517,23 @@ static inline void napi_synchronize(const struct napi_struct *n) #endif enum netdev_queue_state_t { - __QUEUE_STATE_XOFF, + __QUEUE_STATE_DRV_XOFF, + __QUEUE_STATE_STACK_XOFF, __QUEUE_STATE_FROZEN, -#define QUEUE_STATE_XOFF_OR_FROZEN ((1 << __QUEUE_STATE_XOFF) | \ - (1 << __QUEUE_STATE_FROZEN)) +#define QUEUE_STATE_ANY_XOFF ((1 << __QUEUE_STATE_DRV_XOFF) | \ + (1 << __QUEUE_STATE_STACK_XOFF)) +#define QUEUE_STATE_ANY_XOFF_OR_FROZEN (QUEUE_STATE_ANY_XOFF | \ + (1 << __QUEUE_STATE_FROZEN)) }; +/* + * __QUEUE_STATE_DRV_XOFF is used by drivers to stop the transmit queue. The + * netif_tx_* functions below are used to manipulate this flag. The + * __QUEUE_STATE_STACK_XOFF flag is used by the stack to stop the transmit + * queue independently. The netif_xmit_*stopped functions below are called + * to check if the queue has been stopped by the driver or stack (either + * of the XOFF bits are set in the state). Drivers should not need to call + * netif_xmit*stopped functions, they should only be using netif_tx_*. + */ struct netdev_queue { /* @@ -1718,7 +1730,7 @@ extern void __netif_schedule(struct Qdisc *q); static inline void netif_schedule_queue(struct netdev_queue *txq) { - if (!test_bit(__QUEUE_STATE_XOFF, &txq->state)) + if (!(txq->state & QUEUE_STATE_ANY_XOFF)) __netif_schedule(txq->qdisc); } @@ -1732,7 +1744,7 @@ static inline void netif_tx_schedule_all(struct net_device *dev) static inline void netif_tx_start_queue(struct netdev_queue *dev_queue) { - clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state); + clear_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } /** @@ -1764,7 +1776,7 @@ static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue) return; } #endif - if (test_and_clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state)) + if (test_and_clear_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state)) __netif_schedule(dev_queue->qdisc); } @@ -1796,7 +1808,7 @@ static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) pr_info("netif_stop_queue() cannot be called before register_netdev()\n"); return; } - set_bit(__QUEUE_STATE_XOFF, &dev_queue->state); + set_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } /** @@ -1823,7 +1835,7 @@ static inline void netif_tx_stop_all_queues(struct net_device *dev) static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue) { - return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state); + return test_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } /** @@ -1837,9 +1849,16 @@ static inline int netif_queue_stopped(const struct net_device *dev) return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0)); } -static inline int netif_tx_queue_frozen_or_stopped(const struct netdev_queue *dev_queue) +static inline int netif_xmit_stopped(const struct netdev_queue *dev_queue) { - return dev_queue->state & QUEUE_STATE_XOFF_OR_FROZEN; + return dev_queue->state & QUEUE_STATE_ANY_XOFF; +} + +static inline int netif_xmit_frozen_or_stopped(const struct netdev_queue *dev_queue) +{ + return dev_queue->state & QUEUE_STATE_ANY_XOFF_OR_FROZEN; +} + } /** @@ -1926,7 +1945,7 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index) if (netpoll_trap()) return; #endif - if (test_and_clear_bit(__QUEUE_STATE_XOFF, &txq->state)) + if (test_and_clear_bit(__QUEUE_STATE_DRV_XOFF, &txq->state)) __netif_schedule(txq->qdisc); } diff --git a/net/core/dev.c b/net/core/dev.c index c7ef6c5d3782..cb8f753b4238 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2270,7 +2270,7 @@ gso: return rc; } txq_trans_update(txq); - if (unlikely(netif_tx_queue_stopped(txq) && skb->next)) + if (unlikely(netif_xmit_stopped(txq) && skb->next)) return NETDEV_TX_BUSY; } while (skb->next); @@ -2558,7 +2558,7 @@ int dev_queue_xmit(struct sk_buff *skb) HARD_TX_LOCK(dev, txq, cpu); - if (!netif_tx_queue_stopped(txq)) { + if (!netif_xmit_stopped(txq)) { __this_cpu_inc(xmit_recursion); rc = dev_hard_start_xmit(skb, dev, txq); __this_cpu_dec(xmit_recursion); diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 1a7d8e2c9768..0d38808a2305 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -76,7 +76,7 @@ static void queue_process(struct work_struct *work) local_irq_save(flags); __netif_tx_lock(txq, smp_processor_id()); - if (netif_tx_queue_frozen_or_stopped(txq) || + if (netif_xmit_frozen_or_stopped(txq) || ops->ndo_start_xmit(skb, dev) != NETDEV_TX_OK) { skb_queue_head(&npinfo->txq, skb); __netif_tx_unlock(txq); @@ -317,7 +317,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb, for (tries = jiffies_to_usecs(1)/USEC_PER_POLL; tries > 0; --tries) { if (__netif_tx_trylock(txq)) { - if (!netif_tx_queue_stopped(txq)) { + if (!netif_xmit_stopped(txq)) { status = ops->ndo_start_xmit(skb, dev); if (status == NETDEV_TX_OK) txq_trans_update(txq); diff --git a/net/core/pktgen.c b/net/core/pktgen.c index aa53a35a631b..449fe0f068f8 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -3342,7 +3342,7 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev) __netif_tx_lock_bh(txq); - if (unlikely(netif_tx_queue_frozen_or_stopped(txq))) { + if (unlikely(netif_xmit_frozen_or_stopped(txq))) { ret = NETDEV_TX_BUSY; pkt_dev->last_ok = 0; goto unlock; diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 79ac1458c2ba..67fc573e013a 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -60,7 +60,7 @@ static inline struct sk_buff *dequeue_skb(struct Qdisc *q) /* check the reason of requeuing without tx lock first */ txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); - if (!netif_tx_queue_frozen_or_stopped(txq)) { + if (!netif_xmit_frozen_or_stopped(txq)) { q->gso_skb = NULL; q->q.qlen--; } else @@ -121,7 +121,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q, spin_unlock(root_lock); HARD_TX_LOCK(dev, txq, smp_processor_id()); - if (!netif_tx_queue_frozen_or_stopped(txq)) + if (!netif_xmit_frozen_or_stopped(txq)) ret = dev_hard_start_xmit(skb, dev, txq); HARD_TX_UNLOCK(dev, txq); @@ -143,7 +143,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q, ret = dev_requeue_skb(skb, q); } - if (ret && netif_tx_queue_frozen_or_stopped(txq)) + if (ret && netif_xmit_frozen_or_stopped(txq)) ret = 0; return ret; @@ -242,7 +242,7 @@ static void dev_watchdog(unsigned long arg) * old device drivers set dev->trans_start */ trans_start = txq->trans_start ? : dev->trans_start; - if (netif_tx_queue_stopped(txq) && + if (netif_xmit_stopped(txq) && time_after(jiffies, (trans_start + dev->watchdog_timeo))) { some_queue_timedout = 1; diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c index edc1950e0e77..49131d7a7446 100644 --- a/net/sched/sch_multiq.c +++ b/net/sched/sch_multiq.c @@ -107,7 +107,8 @@ static struct sk_buff *multiq_dequeue(struct Qdisc *sch) /* Check that target subqueue is available before * pulling an skb to avoid head-of-line blocking. */ - if (!__netif_subqueue_stopped(qdisc_dev(sch), q->curband)) { + if (!netif_xmit_stopped( + netdev_get_tx_queue(qdisc_dev(sch), q->curband))) { qdisc = q->queues[q->curband]; skb = qdisc->dequeue(qdisc); if (skb) { @@ -138,7 +139,8 @@ static struct sk_buff *multiq_peek(struct Qdisc *sch) /* Check that target subqueue is available before * pulling an skb to avoid head-of-line blocking. */ - if (!__netif_subqueue_stopped(qdisc_dev(sch), curband)) { + if (!netif_xmit_stopped( + netdev_get_tx_queue(qdisc_dev(sch), curband))) { qdisc = q->queues[curband]; skb = qdisc->ops->peek(qdisc); if (skb) diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c index a3b7120fcc74..283bfe3de59d 100644 --- a/net/sched/sch_teql.c +++ b/net/sched/sch_teql.c @@ -301,7 +301,7 @@ restart: if (slave_txq->qdisc_sleeping != q) continue; - if (__netif_subqueue_stopped(slave, subq) || + if (netif_xmit_stopped(netdev_get_tx_queue(slave, subq)) || !netif_running(slave)) { busy = 1; continue; @@ -312,7 +312,7 @@ restart: if (__netif_tx_trylock(slave_txq)) { unsigned int length = qdisc_pkt_len(skb); - if (!netif_tx_queue_frozen_or_stopped(slave_txq) && + if (!netif_xmit_frozen_or_stopped(slave_txq) && slave_ops->ndo_start_xmit(skb, slave) == NETDEV_TX_OK) { txq_trans_update(slave_txq); __netif_tx_unlock(slave_txq); @@ -324,7 +324,7 @@ restart: } __netif_tx_unlock(slave_txq); } - if (netif_queue_stopped(dev)) + if (netif_xmit_stopped(netdev_get_tx_queue(dev, 0))) busy = 1; break; case 1: -- cgit v1.2.3 From c5d67bd78c5dc540e3461c36fb3d389fbe0de4c3 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 28 Nov 2011 16:32:52 +0000 Subject: net: Add netdev interfaces for recording sends/comp Add interfaces for drivers to call for recording number of packets and bytes at send time and transmit completion. Also, added a function to "reset" a queue. These will be used by Byte Queue Limits. Signed-off-by: Tom Herbert Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index d19f93265cac..9b24cc7a54d1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1859,6 +1859,34 @@ static inline int netif_xmit_frozen_or_stopped(const struct netdev_queue *dev_qu return dev_queue->state & QUEUE_STATE_ANY_XOFF_OR_FROZEN; } +static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue, + unsigned int bytes) +{ +} + +static inline void netdev_sent_queue(struct net_device *dev, unsigned int bytes) +{ + netdev_tx_sent_queue(netdev_get_tx_queue(dev, 0), bytes); +} + +static inline void netdev_tx_completed_queue(struct netdev_queue *dev_queue, + unsigned pkts, unsigned bytes) +{ +} + +static inline void netdev_completed_queue(struct net_device *dev, + unsigned pkts, unsigned bytes) +{ + netdev_tx_completed_queue(netdev_get_tx_queue(dev, 0), pkts, bytes); +} + +static inline void netdev_tx_reset_queue(struct netdev_queue *q) +{ +} + +static inline void netdev_reset_queue(struct net_device *dev_queue) +{ + netdev_tx_reset_queue(netdev_get_tx_queue(dev_queue, 0)); } /** -- cgit v1.2.3 From 114cf5802165ee93e3ab461c9c505cd94a08b800 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 28 Nov 2011 16:33:09 +0000 Subject: bql: Byte queue limits Networking stack support for byte queue limits, uses dynamic queue limits library. Byte queue limits are maintained per transmit queue, and a dql structure has been added to netdev_queue structure for this purpose. Configuration of bql is in the tx- sysfs directory for the queue under the byte_queue_limits directory. Configuration includes: limit_min, bql minimum limit limit_max, bql maximum limit hold_time, bql slack hold time Also under the directory are: limit, current byte limit inflight, current number of bytes on the queue Signed-off-by: Tom Herbert Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 32 ++++++++++- net/Kconfig | 6 ++ net/core/dev.c | 3 + net/core/net-sysfs.c | 140 +++++++++++++++++++++++++++++++++++++++++++--- 4 files changed, 172 insertions(+), 9 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9b24cc7a54d1..97edb3215a5a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -541,7 +542,6 @@ struct netdev_queue { */ struct net_device *dev; struct Qdisc *qdisc; - unsigned long state; struct Qdisc *qdisc_sleeping; #ifdef CONFIG_SYSFS struct kobject kobj; @@ -564,6 +564,12 @@ struct netdev_queue { * (/sys/class/net/DEV/Q/trans_timeout) */ unsigned long trans_timeout; + + unsigned long state; + +#ifdef CONFIG_BQL + struct dql dql; +#endif } ____cacheline_aligned_in_smp; static inline int netdev_queue_numa_node_read(const struct netdev_queue *q) @@ -1862,6 +1868,15 @@ static inline int netif_xmit_frozen_or_stopped(const struct netdev_queue *dev_qu static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue, unsigned int bytes) { +#ifdef CONFIG_BQL + dql_queued(&dev_queue->dql, bytes); + if (unlikely(dql_avail(&dev_queue->dql) < 0)) { + set_bit(__QUEUE_STATE_STACK_XOFF, &dev_queue->state); + if (unlikely(dql_avail(&dev_queue->dql) >= 0)) + clear_bit(__QUEUE_STATE_STACK_XOFF, + &dev_queue->state); + } +#endif } static inline void netdev_sent_queue(struct net_device *dev, unsigned int bytes) @@ -1872,6 +1887,18 @@ static inline void netdev_sent_queue(struct net_device *dev, unsigned int bytes) static inline void netdev_tx_completed_queue(struct netdev_queue *dev_queue, unsigned pkts, unsigned bytes) { +#ifdef CONFIG_BQL + if (likely(bytes)) { + dql_completed(&dev_queue->dql, bytes); + if (unlikely(test_bit(__QUEUE_STATE_STACK_XOFF, + &dev_queue->state) && + dql_avail(&dev_queue->dql) >= 0)) { + if (test_and_clear_bit(__QUEUE_STATE_STACK_XOFF, + &dev_queue->state)) + netif_schedule_queue(dev_queue); + } + } +#endif } static inline void netdev_completed_queue(struct net_device *dev, @@ -1882,6 +1909,9 @@ static inline void netdev_completed_queue(struct net_device *dev, static inline void netdev_tx_reset_queue(struct netdev_queue *q) { +#ifdef CONFIG_BQL + dql_reset(&q->dql); +#endif } static inline void netdev_reset_queue(struct net_device *dev_queue) diff --git a/net/Kconfig b/net/Kconfig index 63d2c5dc36ff..2d998735c4d8 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -239,6 +239,12 @@ config NETPRIO_CGROUP Cgroup subsystem for use in assigning processes to network priorities on a per-interface basis +config BQL + boolean + depends on SYSFS + select DQL + default y + config HAVE_BPF_JIT bool diff --git a/net/core/dev.c b/net/core/dev.c index cb8f753b4238..91a599122074 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5470,6 +5470,9 @@ static void netdev_init_one_queue(struct net_device *dev, queue->xmit_lock_owner = -1; netdev_queue_numa_node_write(queue, NUMA_NO_NODE); queue->dev = dev; +#ifdef CONFIG_BQL + dql_init(&queue->dql, HZ); +#endif } static int netif_alloc_netdev_queues(struct net_device *dev) diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index b17c14a0fce9..3bf72b638d34 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include "net-sysfs.h" @@ -845,6 +846,116 @@ static ssize_t show_trans_timeout(struct netdev_queue *queue, static struct netdev_queue_attribute queue_trans_timeout = __ATTR(tx_timeout, S_IRUGO, show_trans_timeout, NULL); +#ifdef CONFIG_BQL +/* + * Byte queue limits sysfs structures and functions. + */ +static ssize_t bql_show(char *buf, unsigned int value) +{ + return sprintf(buf, "%u\n", value); +} + +static ssize_t bql_set(const char *buf, const size_t count, + unsigned int *pvalue) +{ + unsigned int value; + int err; + + if (!strcmp(buf, "max") || !strcmp(buf, "max\n")) + value = DQL_MAX_LIMIT; + else { + err = kstrtouint(buf, 10, &value); + if (err < 0) + return err; + if (value > DQL_MAX_LIMIT) + return -EINVAL; + } + + *pvalue = value; + + return count; +} + +static ssize_t bql_show_hold_time(struct netdev_queue *queue, + struct netdev_queue_attribute *attr, + char *buf) +{ + struct dql *dql = &queue->dql; + + return sprintf(buf, "%u\n", jiffies_to_msecs(dql->slack_hold_time)); +} + +static ssize_t bql_set_hold_time(struct netdev_queue *queue, + struct netdev_queue_attribute *attribute, + const char *buf, size_t len) +{ + struct dql *dql = &queue->dql; + unsigned value; + int err; + + err = kstrtouint(buf, 10, &value); + if (err < 0) + return err; + + dql->slack_hold_time = msecs_to_jiffies(value); + + return len; +} + +static struct netdev_queue_attribute bql_hold_time_attribute = + __ATTR(hold_time, S_IRUGO | S_IWUSR, bql_show_hold_time, + bql_set_hold_time); + +static ssize_t bql_show_inflight(struct netdev_queue *queue, + struct netdev_queue_attribute *attr, + char *buf) +{ + struct dql *dql = &queue->dql; + + return sprintf(buf, "%u\n", dql->num_queued - dql->num_completed); +} + +static struct netdev_queue_attribute bql_inflight_attribute = + __ATTR(inflight, S_IRUGO | S_IWUSR, bql_show_inflight, NULL); + +#define BQL_ATTR(NAME, FIELD) \ +static ssize_t bql_show_ ## NAME(struct netdev_queue *queue, \ + struct netdev_queue_attribute *attr, \ + char *buf) \ +{ \ + return bql_show(buf, queue->dql.FIELD); \ +} \ + \ +static ssize_t bql_set_ ## NAME(struct netdev_queue *queue, \ + struct netdev_queue_attribute *attr, \ + const char *buf, size_t len) \ +{ \ + return bql_set(buf, len, &queue->dql.FIELD); \ +} \ + \ +static struct netdev_queue_attribute bql_ ## NAME ## _attribute = \ + __ATTR(NAME, S_IRUGO | S_IWUSR, bql_show_ ## NAME, \ + bql_set_ ## NAME); + +BQL_ATTR(limit, limit) +BQL_ATTR(limit_max, max_limit) +BQL_ATTR(limit_min, min_limit) + +static struct attribute *dql_attrs[] = { + &bql_limit_attribute.attr, + &bql_limit_max_attribute.attr, + &bql_limit_min_attribute.attr, + &bql_hold_time_attribute.attr, + &bql_inflight_attribute.attr, + NULL +}; + +static struct attribute_group dql_group = { + .name = "byte_queue_limits", + .attrs = dql_attrs, +}; +#endif /* CONFIG_BQL */ + #ifdef CONFIG_XPS static inline unsigned int get_netdev_queue_index(struct netdev_queue *queue) { @@ -1096,17 +1207,17 @@ static struct attribute *netdev_queue_default_attrs[] = { NULL }; -#ifdef CONFIG_XPS static void netdev_queue_release(struct kobject *kobj) { struct netdev_queue *queue = to_netdev_queue(kobj); +#ifdef CONFIG_XPS xps_queue_release(queue); +#endif memset(kobj, 0, sizeof(*kobj)); dev_put(queue->dev); } -#endif /* CONFIG_XPS */ static struct kobj_type netdev_queue_ktype = { .sysfs_ops = &netdev_queue_sysfs_ops, @@ -1125,14 +1236,21 @@ static int netdev_queue_add_kobject(struct net_device *net, int index) kobj->kset = net->queues_kset; error = kobject_init_and_add(kobj, &netdev_queue_ktype, NULL, "tx-%u", index); - if (error) { - kobject_put(kobj); - return error; - } + if (error) + goto exit; + +#ifdef CONFIG_BQL + error = sysfs_create_group(kobj, &dql_group); + if (error) + goto exit; +#endif kobject_uevent(kobj, KOBJ_ADD); dev_hold(queue->dev); + return 0; +exit: + kobject_put(kobj); return error; } #endif /* CONFIG_SYSFS */ @@ -1152,8 +1270,14 @@ netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num) } } - while (--i >= new_num) - kobject_put(&net->_tx[i].kobj); + while (--i >= new_num) { + struct netdev_queue *queue = net->_tx + i; + +#ifdef CONFIG_BQL + sysfs_remove_group(&queue->kobj, &dql_group); +#endif + kobject_put(&queue->kobj); + } return error; #else -- cgit v1.2.3 From 596b9b68ef118f7409afbc78487263e08ef96261 Mon Sep 17 00:00:00 2001 From: David Miller Date: Mon, 25 Jul 2011 00:01:25 +0000 Subject: neigh: Add infrastructure for allocating device neigh privates. netdev->neigh_priv_len records the private area length. This will trigger for neigh_table objects which set tbl->entry_size to zero, and the first instances of this will be forthcoming. Signed-off-by: David S. Miller --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 ++ include/linux/netdevice.h | 1 + net/atm/clip.c | 1 + net/core/neighbour.c | 14 +++++++++++--- 4 files changed, 15 insertions(+), 3 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index efd7a9636aff..57ae9b9265e3 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1218,6 +1218,8 @@ static struct net_device *ipoib_add_port(const char *format, priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu); priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu; + priv->dev->neigh_priv_len = sizeof(struct ipoib_neigh); + result = ib_query_pkey(hca, port, 0, &priv->pkey); if (result) { printk(KERN_WARNING "%s: ib_query_pkey port %d failed (ret = %d)\n", diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 97edb3215a5a..5462c2cd5eab 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1080,6 +1080,7 @@ struct net_device { unsigned char perm_addr[MAX_ADDR_LEN]; /* permanent hw address */ unsigned char addr_assign_type; /* hw address assignment type */ unsigned char addr_len; /* hardware address length */ + unsigned char neigh_priv_len; unsigned short dev_id; /* for shared network cards */ spinlock_t addr_list_lock; diff --git a/net/atm/clip.c b/net/atm/clip.c index 11439a7f6782..aea7cad2ece1 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -535,6 +535,7 @@ static void clip_setup(struct net_device *dev) { dev->netdev_ops = &clip_netdev_ops; dev->type = ARPHRD_ATM; + dev->neigh_priv_len = sizeof(struct atmarp_entry); dev->hard_header_len = RFC1483LLC_LEN; dev->mtu = RFC1626_MTU; dev->tx_queue_len = 100; /* "normal" queue (packets) */ diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 661ad12e0cc9..ef750ff7497e 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -273,7 +273,7 @@ int neigh_ifdown(struct neigh_table *tbl, struct net_device *dev) } EXPORT_SYMBOL(neigh_ifdown); -static struct neighbour *neigh_alloc(struct neigh_table *tbl) +static struct neighbour *neigh_alloc(struct neigh_table *tbl, struct net_device *dev) { struct neighbour *n = NULL; unsigned long now = jiffies; @@ -288,7 +288,15 @@ static struct neighbour *neigh_alloc(struct neigh_table *tbl) goto out_entries; } - n = kzalloc(tbl->entry_size, GFP_ATOMIC); + if (tbl->entry_size) + n = kzalloc(tbl->entry_size, GFP_ATOMIC); + else { + int sz = sizeof(*n) + tbl->key_len; + + sz = ALIGN(sz, NEIGH_PRIV_ALIGN); + sz += dev->neigh_priv_len; + n = kzalloc(sz, GFP_ATOMIC); + } if (!n) goto out_entries; @@ -463,7 +471,7 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey, u32 hash_val; int key_len = tbl->key_len; int error; - struct neighbour *n1, *rc, *n = neigh_alloc(tbl); + struct neighbour *n1, *rc, *n = neigh_alloc(tbl, dev); struct neigh_hash_table *nht; if (!n) { -- cgit v1.2.3 From da6a8fa0275e2178c44a875374cae80d057538d1 Mon Sep 17 00:00:00 2001 From: David Miller Date: Mon, 25 Jul 2011 00:01:38 +0000 Subject: neigh: Add device constructor/destructor capability. If the neigh entry has device private state, it will need constructor/destructor ops. Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ net/core/neighbour.c | 15 ++++++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 5462c2cd5eab..1c4ddb37f2b5 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -974,6 +974,8 @@ struct net_device_ops { netdev_features_t features); int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); + int (*ndo_neigh_construct)(struct neighbour *n); + int (*ndo_neigh_destroy)(struct neighbour *n); }; /* diff --git a/net/core/neighbour.c b/net/core/neighbour.c index ef750ff7497e..cdf8dc34f0ba 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -489,6 +489,14 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey, goto out_neigh_release; } + if (dev->netdev_ops->ndo_neigh_construct) { + error = dev->netdev_ops->ndo_neigh_construct(n); + if (error < 0) { + rc = ERR_PTR(error); + goto out_neigh_release; + } + } + /* Device specific setup. */ if (n->parms->neigh_setup && (error = n->parms->neigh_setup(n)) < 0) { @@ -692,6 +700,8 @@ static inline void neigh_parms_put(struct neigh_parms *parms) */ void neigh_destroy(struct neighbour *neigh) { + struct net_device *dev = neigh->dev; + NEIGH_CACHE_STAT_INC(neigh->tbl, destroys); if (!neigh->dead) { @@ -707,7 +717,10 @@ void neigh_destroy(struct neighbour *neigh) skb_queue_purge(&neigh->arp_queue); neigh->arp_queue_len_bytes = 0; - dev_put(neigh->dev); + if (dev->netdev_ops->ndo_neigh_destroy) + dev->netdev_ops->ndo_neigh_destroy(neigh); + + dev_put(dev); neigh_parms_put(neigh->parms); NEIGH_PRINTK2("neigh %p is destroyed.\n", neigh); -- cgit v1.2.3 From 65698610f58153eb7621be3fb4f57ca318b19c60 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 1 Dec 2011 14:16:04 -0500 Subject: net: Make ndo_neigh_destroy return void. The return value isn't used. Suggested by Ben Hucthings. Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 1c4ddb37f2b5..21440e31fdab 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -975,7 +975,7 @@ struct net_device_ops { int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); int (*ndo_neigh_construct)(struct neighbour *n); - int (*ndo_neigh_destroy)(struct neighbour *n); + void (*ndo_neigh_destroy)(struct neighbour *n); }; /* -- cgit v1.2.3 From 8e586137e6b63af1e881b328466ab5ffbe562510 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 8 Dec 2011 19:52:37 -0500 Subject: net: make vlan ndo_vlan_rx_[add/kill]_vid return error value Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 10 ++++-- drivers/net/ethernet/adaptec/starfire.c | 8 +++-- drivers/net/ethernet/brocade/bna/bnad.c | 12 ++++--- drivers/net/ethernet/cisco/enic/enic_dev.c | 14 ++++++--- drivers/net/ethernet/cisco/enic/enic_dev.h | 4 +-- drivers/net/ethernet/emulex/benet/be_main.c | 12 ++++--- drivers/net/ethernet/ibm/ehea/ehea_main.c | 21 ++++++++++--- drivers/net/ethernet/intel/e1000/e1000_main.c | 14 ++++++--- drivers/net/ethernet/intel/e1000e/netdev.c | 12 ++++--- drivers/net/ethernet/intel/igb/igb_main.c | 12 ++++--- drivers/net/ethernet/intel/igbvf/netdev.c | 20 +++++++----- drivers/net/ethernet/intel/ixgb/ixgb_main.c | 12 ++++--- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 8 +++-- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 8 +++-- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 7 +++-- drivers/net/ethernet/neterion/vxge/vxge-main.c | 6 ++-- drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 10 +++--- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 38 ++++++++++++++--------- drivers/net/ethernet/tehuti/tehuti.c | 6 ++-- drivers/net/ethernet/via/via-rhine.c | 10 +++--- drivers/net/ethernet/via/via-velocity.c | 6 ++-- drivers/net/macvlan.c | 10 +++--- drivers/net/team/team.c | 8 +++-- drivers/net/virtio_net.c | 6 ++-- drivers/net/vmxnet3/vmxnet3_drv.c | 8 +++-- drivers/s390/net/qeth_l2_main.c | 18 ++++++----- drivers/s390/net/qeth_l3_main.c | 9 +++--- include/linux/netdevice.h | 8 ++--- 28 files changed, 210 insertions(+), 107 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 3216c514fdc8..d72c37f03e50 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -428,7 +428,7 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, * @bond_dev: bonding net device that got called * @vid: vlan id being added */ -static void bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid) +static int bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid) { struct bonding *bond = netdev_priv(bond_dev); struct slave *slave; @@ -448,7 +448,10 @@ static void bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid) if (res) { pr_err("%s: Error: Failed to add vlan id %d\n", bond_dev->name, vid); + return res; } + + return 0; } /** @@ -456,7 +459,7 @@ static void bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid) * @bond_dev: bonding net device that got called * @vid: vlan id being removed */ -static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid) +static int bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid) { struct bonding *bond = netdev_priv(bond_dev); struct slave *slave; @@ -476,7 +479,10 @@ static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid) if (res) { pr_err("%s: Error: Failed to remove vlan id %d\n", bond_dev->name, vid); + return res; } + + return 0; } static void bond_add_vlans_on_slave(struct bonding *bond, struct net_device *slave_dev) diff --git a/drivers/net/ethernet/adaptec/starfire.c b/drivers/net/ethernet/adaptec/starfire.c index a446e251908b..cb4f38a17f20 100644 --- a/drivers/net/ethernet/adaptec/starfire.c +++ b/drivers/net/ethernet/adaptec/starfire.c @@ -607,7 +607,7 @@ static const struct ethtool_ops ethtool_ops; #ifdef VLAN_SUPPORT -static void netdev_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int netdev_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct netdev_private *np = netdev_priv(dev); @@ -617,9 +617,11 @@ static void netdev_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) set_bit(vid, np->active_vlans); set_rx_mode(dev); spin_unlock(&np->lock); + + return 0; } -static void netdev_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int netdev_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct netdev_private *np = netdev_priv(dev); @@ -629,6 +631,8 @@ static void netdev_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) clear_bit(vid, np->active_vlans); set_rx_mode(dev); spin_unlock(&np->lock); + + return 0; } #endif /* VLAN_SUPPORT */ diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index 7f3091e7eb42..aac3a3b710a0 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -2968,7 +2968,7 @@ bnad_change_mtu(struct net_device *netdev, int new_mtu) return err; } -static void +static int bnad_vlan_rx_add_vid(struct net_device *netdev, unsigned short vid) { @@ -2976,7 +2976,7 @@ bnad_vlan_rx_add_vid(struct net_device *netdev, unsigned long flags; if (!bnad->rx_info[0].rx) - return; + return 0; mutex_lock(&bnad->conf_mutex); @@ -2986,9 +2986,11 @@ bnad_vlan_rx_add_vid(struct net_device *netdev, spin_unlock_irqrestore(&bnad->bna_lock, flags); mutex_unlock(&bnad->conf_mutex); + + return 0; } -static void +static int bnad_vlan_rx_kill_vid(struct net_device *netdev, unsigned short vid) { @@ -2996,7 +2998,7 @@ bnad_vlan_rx_kill_vid(struct net_device *netdev, unsigned long flags; if (!bnad->rx_info[0].rx) - return; + return 0; mutex_lock(&bnad->conf_mutex); @@ -3006,6 +3008,8 @@ bnad_vlan_rx_kill_vid(struct net_device *netdev, spin_unlock_irqrestore(&bnad->bna_lock, flags); mutex_unlock(&bnad->conf_mutex); + + return 0; } #ifdef CONFIG_NET_POLL_CONTROLLER diff --git a/drivers/net/ethernet/cisco/enic/enic_dev.c b/drivers/net/ethernet/cisco/enic/enic_dev.c index fd6247b3c0ee..bf0fc56dba19 100644 --- a/drivers/net/ethernet/cisco/enic/enic_dev.c +++ b/drivers/net/ethernet/cisco/enic/enic_dev.c @@ -212,23 +212,29 @@ int enic_dev_deinit_done(struct enic *enic, int *status) } /* rtnl lock is held */ -void enic_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +int enic_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct enic *enic = netdev_priv(netdev); + int err; spin_lock(&enic->devcmd_lock); - enic_add_vlan(enic, vid); + err = enic_add_vlan(enic, vid); spin_unlock(&enic->devcmd_lock); + + return err; } /* rtnl lock is held */ -void enic_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +int enic_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct enic *enic = netdev_priv(netdev); + int err; spin_lock(&enic->devcmd_lock); - enic_del_vlan(enic, vid); + err = enic_del_vlan(enic, vid); spin_unlock(&enic->devcmd_lock); + + return err; } int enic_dev_enable2(struct enic *enic, int active) diff --git a/drivers/net/ethernet/cisco/enic/enic_dev.h b/drivers/net/ethernet/cisco/enic/enic_dev.h index 1f83a4747ba0..da1cba3c410e 100644 --- a/drivers/net/ethernet/cisco/enic/enic_dev.h +++ b/drivers/net/ethernet/cisco/enic/enic_dev.h @@ -46,8 +46,8 @@ int enic_dev_packet_filter(struct enic *enic, int directed, int multicast, int broadcast, int promisc, int allmulti); int enic_dev_add_addr(struct enic *enic, u8 *addr); int enic_dev_del_addr(struct enic *enic, u8 *addr); -void enic_vlan_rx_add_vid(struct net_device *netdev, u16 vid); -void enic_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +int enic_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +int enic_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); int enic_dev_notify_unset(struct enic *enic); int enic_dev_hang_notify(struct enic *enic); int enic_dev_set_ig_vlan_rewrite_mode(struct enic *enic); diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 3854fb0610ba..b8a526f9efc8 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -780,31 +780,35 @@ static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num) return status; } -static void be_vlan_add_vid(struct net_device *netdev, u16 vid) +static int be_vlan_add_vid(struct net_device *netdev, u16 vid) { struct be_adapter *adapter = netdev_priv(netdev); adapter->vlans_added++; if (!be_physfn(adapter)) - return; + return 0; adapter->vlan_tag[vid] = 1; if (adapter->vlans_added <= (adapter->max_vlans + 1)) be_vid_config(adapter, false, 0); + + return 0; } -static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) +static int be_vlan_rem_vid(struct net_device *netdev, u16 vid) { struct be_adapter *adapter = netdev_priv(netdev); adapter->vlans_added--; if (!be_physfn(adapter)) - return; + return 0; adapter->vlan_tag[vid] = 0; if (adapter->vlans_added <= adapter->max_vlans) be_vid_config(adapter, false, 0); + + return 0; } static void be_set_rx_mode(struct net_device *netdev) diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index bfeccbfde236..3554414eb5e2 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -2114,17 +2114,19 @@ static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } -static void ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct ehea_port *port = netdev_priv(dev); struct ehea_adapter *adapter = port->adapter; struct hcp_ehea_port_cb1 *cb1; int index; u64 hret; + int err = 0; cb1 = (void *)get_zeroed_page(GFP_KERNEL); if (!cb1) { pr_err("no mem for cb1\n"); + err = -ENOMEM; goto out; } @@ -2132,6 +2134,7 @@ static void ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) H_PORT_CB1, H_PORT_CB1_ALL, cb1); if (hret != H_SUCCESS) { pr_err("query_ehea_port failed\n"); + err = -EINVAL; goto out; } @@ -2140,24 +2143,28 @@ static void ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, H_PORT_CB1, H_PORT_CB1_ALL, cb1); - if (hret != H_SUCCESS) + if (hret != H_SUCCESS) { pr_err("modify_ehea_port failed\n"); + err = -EINVAL; + } out: free_page((unsigned long)cb1); - return; + return err; } -static void ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct ehea_port *port = netdev_priv(dev); struct ehea_adapter *adapter = port->adapter; struct hcp_ehea_port_cb1 *cb1; int index; u64 hret; + int err = 0; cb1 = (void *)get_zeroed_page(GFP_KERNEL); if (!cb1) { pr_err("no mem for cb1\n"); + err = -ENOMEM; goto out; } @@ -2165,6 +2172,7 @@ static void ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) H_PORT_CB1, H_PORT_CB1_ALL, cb1); if (hret != H_SUCCESS) { pr_err("query_ehea_port failed\n"); + err = -EINVAL; goto out; } @@ -2173,10 +2181,13 @@ static void ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, H_PORT_CB1, H_PORT_CB1_ALL, cb1); - if (hret != H_SUCCESS) + if (hret != H_SUCCESS) { pr_err("modify_ehea_port failed\n"); + err = -EINVAL; + } out: free_page((unsigned long)cb1); + return err; } int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 82f4ef142259..053f01289eff 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -169,8 +169,8 @@ static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, static bool e1000_vlan_used(struct e1000_adapter *adapter); static void e1000_vlan_mode(struct net_device *netdev, netdev_features_t features); -static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); -static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +static int e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +static int e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); static void e1000_restore_vlan(struct e1000_adapter *adapter); #ifdef CONFIG_PM @@ -4604,7 +4604,7 @@ static void e1000_vlan_mode(struct net_device *netdev, e1000_irq_enable(adapter); } -static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +static int e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -4613,7 +4613,7 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) if ((hw->mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && (vid == adapter->mng_vlan_id)) - return; + return 0; if (!e1000_vlan_used(adapter)) e1000_vlan_filter_on_off(adapter, true); @@ -4625,9 +4625,11 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) e1000_write_vfta(hw, index, vfta); set_bit(vid, adapter->active_vlans); + + return 0; } -static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +static int e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -4648,6 +4650,8 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) if (!e1000_vlan_used(adapter)) e1000_vlan_filter_on_off(adapter, false); + + return 0; } static void e1000_restore_vlan(struct e1000_adapter *adapter) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 93ae0c26d434..90953b4d6bfa 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -2522,7 +2522,7 @@ clean_rx: return work_done; } -static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +static int e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -2532,7 +2532,7 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) if ((adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && (vid == adapter->mng_vlan_id)) - return; + return 0; /* add VID to filter table */ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) { @@ -2543,9 +2543,11 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) } set_bit(vid, adapter->active_vlans); + + return 0; } -static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +static int e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -2556,7 +2558,7 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) (vid == adapter->mng_vlan_id)) { /* release control to f/w */ e1000e_release_hw_control(adapter); - return; + return 0; } /* remove VID from filter table */ @@ -2568,6 +2570,8 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) } clear_bit(vid, adapter->active_vlans); + + return 0; } /** diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 143cfebe3182..89d576ce5776 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -148,8 +148,8 @@ static int igb_ioctl(struct net_device *, struct ifreq *, int cmd); static void igb_tx_timeout(struct net_device *); static void igb_reset_task(struct work_struct *); static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features); -static void igb_vlan_rx_add_vid(struct net_device *, u16); -static void igb_vlan_rx_kill_vid(struct net_device *, u16); +static int igb_vlan_rx_add_vid(struct net_device *, u16); +static int igb_vlan_rx_kill_vid(struct net_device *, u16); static void igb_restore_vlan(struct igb_adapter *); static void igb_rar_set_qsel(struct igb_adapter *, u8 *, u32 , u8); static void igb_ping_all_vfs(struct igb_adapter *); @@ -6491,7 +6491,7 @@ static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features) igb_rlpml_set(adapter); } -static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +static int igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct igb_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -6504,9 +6504,11 @@ static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid) igb_vfta_set(hw, vid, true); set_bit(vid, adapter->active_vlans); + + return 0; } -static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +static int igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct igb_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -6521,6 +6523,8 @@ static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) igb_vfta_set(hw, vid, false); clear_bit(vid, adapter->active_vlans); + + return 0; } static void igb_restore_vlan(struct igb_adapter *adapter) diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index c358973ce414..fd3da3076c2f 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -1176,18 +1176,20 @@ static void igbvf_set_rlpml(struct igbvf_adapter *adapter) e1000_rlpml_set_vf(hw, max_frame_size); } -static void igbvf_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +static int igbvf_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct igbvf_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; - if (hw->mac.ops.set_vfta(hw, vid, true)) + if (hw->mac.ops.set_vfta(hw, vid, true)) { dev_err(&adapter->pdev->dev, "Failed to add vlan id %d\n", vid); - else - set_bit(vid, adapter->active_vlans); + return -EINVAL; + } + set_bit(vid, adapter->active_vlans); + return 0; } -static void igbvf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +static int igbvf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct igbvf_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; @@ -1197,11 +1199,13 @@ static void igbvf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) if (!test_bit(__IGBVF_DOWN, &adapter->state)) igbvf_irq_enable(adapter); - if (hw->mac.ops.set_vfta(hw, vid, false)) + if (hw->mac.ops.set_vfta(hw, vid, false)) { dev_err(&adapter->pdev->dev, "Failed to remove vlan id %d\n", vid); - else - clear_bit(vid, adapter->active_vlans); + return -EINVAL; + } + clear_bit(vid, adapter->active_vlans); + return 0; } static void igbvf_restore_vlan(struct igbvf_adapter *adapter) diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c index 247cf9219e03..c573655f3307 100644 --- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c +++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c @@ -101,8 +101,8 @@ static void ixgb_tx_timeout_task(struct work_struct *work); static void ixgb_vlan_strip_enable(struct ixgb_adapter *adapter); static void ixgb_vlan_strip_disable(struct ixgb_adapter *adapter); -static void ixgb_vlan_rx_add_vid(struct net_device *netdev, u16 vid); -static void ixgb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +static int ixgb_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +static int ixgb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); static void ixgb_restore_vlan(struct ixgb_adapter *adapter); #ifdef CONFIG_NET_POLL_CONTROLLER @@ -2217,7 +2217,7 @@ ixgb_vlan_strip_disable(struct ixgb_adapter *adapter) IXGB_WRITE_REG(&adapter->hw, CTRL0, ctrl); } -static void +static int ixgb_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct ixgb_adapter *adapter = netdev_priv(netdev); @@ -2230,9 +2230,11 @@ ixgb_vlan_rx_add_vid(struct net_device *netdev, u16 vid) vfta |= (1 << (vid & 0x1F)); ixgb_write_vfta(&adapter->hw, index, vfta); set_bit(vid, adapter->active_vlans); + + return 0; } -static void +static int ixgb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct ixgb_adapter *adapter = netdev_priv(netdev); @@ -2245,6 +2247,8 @@ ixgb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) vfta &= ~(1 << (vid & 0x1F)); ixgb_write_vfta(&adapter->hw, index, vfta); clear_bit(vid, adapter->active_vlans); + + return 0; } static void diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 1b28ed9d8cc1..5d94ce1c0fc3 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3044,7 +3044,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) hw->mac.ops.enable_rx_dma(hw, rxctrl); } -static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_hw *hw = &adapter->hw; @@ -3053,9 +3053,11 @@ static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) /* add VID to filter table */ hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, true); set_bit(vid, adapter->active_vlans); + + return 0; } -static void ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_hw *hw = &adapter->hw; @@ -3064,6 +3066,8 @@ static void ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) /* remove VID from filter table */ hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, false); clear_bit(vid, adapter->active_vlans); + + return 0; } /** diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 5d1a64398169..891162d1610c 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -1403,7 +1403,7 @@ static void ixgbevf_configure_rx(struct ixgbevf_adapter *adapter) } } -static void ixgbevf_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +static int ixgbevf_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct ixgbevf_adapter *adapter = netdev_priv(netdev); struct ixgbe_hw *hw = &adapter->hw; @@ -1412,9 +1412,11 @@ static void ixgbevf_vlan_rx_add_vid(struct net_device *netdev, u16 vid) if (hw->mac.ops.set_vfta) hw->mac.ops.set_vfta(hw, vid, 0, true); set_bit(vid, adapter->active_vlans); + + return 0; } -static void ixgbevf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +static int ixgbevf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct ixgbevf_adapter *adapter = netdev_priv(netdev); struct ixgbe_hw *hw = &adapter->hw; @@ -1423,6 +1425,8 @@ static void ixgbevf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) if (hw->mac.ops.set_vfta) hw->mac.ops.set_vfta(hw, vid, 0, false); clear_bit(vid, adapter->active_vlans); + + return 0; } static void ixgbevf_restore_vlan(struct ixgbevf_adapter *adapter) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 4c5bbb3aad31..2083f3b5d689 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -45,7 +45,7 @@ #include "mlx4_en.h" #include "en_port.h" -static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; @@ -67,9 +67,10 @@ static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) en_err(priv, "failed adding vlan %d\n", vid); mutex_unlock(&mdev->state_lock); + return 0; } -static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; @@ -93,6 +94,8 @@ static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) en_err(priv, "Failed configuring VLAN filter\n"); } mutex_unlock(&mdev->state_lock); + + return 0; } u64 mlx4_en_mac_to_u64(u8 *addr) diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c index 16d4d8e913c3..ef76725454d2 100644 --- a/drivers/net/ethernet/neterion/vxge/vxge-main.c +++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c @@ -3305,7 +3305,7 @@ static void vxge_tx_watchdog(struct net_device *dev) * * Add the vlan id to the devices vlan id table */ -static void +static int vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct vxgedev *vdev = netdev_priv(dev); @@ -3320,6 +3320,7 @@ vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) vxge_hw_vpath_vid_add(vpath->handle, vid); } set_bit(vid, vdev->active_vlans); + return 0; } /** @@ -3329,7 +3330,7 @@ vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) * * Remove the vlan id from the device's vlan id table */ -static void +static int vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct vxgedev *vdev = netdev_priv(dev); @@ -3348,6 +3349,7 @@ vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__); clear_bit(vid, vdev->active_vlans); + return 0; } static const struct net_device_ops vxge_netdev_ops = { diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 823f845ddc04..69b8e4ef14d9 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -97,8 +97,8 @@ static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32); static int qlcnicvf_start_firmware(struct qlcnic_adapter *); static void qlcnic_set_netdev_features(struct qlcnic_adapter *, struct qlcnic_esw_func_cfg *); -static void qlcnic_vlan_rx_add(struct net_device *, u16); -static void qlcnic_vlan_rx_del(struct net_device *, u16); +static int qlcnic_vlan_rx_add(struct net_device *, u16); +static int qlcnic_vlan_rx_del(struct net_device *, u16); /* PCI Device ID Table */ #define ENTRY(device) \ @@ -735,20 +735,22 @@ qlcnic_set_vlan_config(struct qlcnic_adapter *adapter, adapter->pvid = 0; } -static void +static int qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid) { struct qlcnic_adapter *adapter = netdev_priv(netdev); set_bit(vid, adapter->vlans); + return 0; } -static void +static int qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid) { struct qlcnic_adapter *adapter = netdev_priv(netdev); qlcnic_restore_indev_addr(netdev, NETDEV_DOWN); clear_bit(vid, adapter->vlans); + return 0; } static void diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index 1ce4e08037b8..b54898737284 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -2349,56 +2349,66 @@ static int qlge_set_features(struct net_device *ndev, return 0; } -static void __qlge_vlan_rx_add_vid(struct ql_adapter *qdev, u16 vid) +static int __qlge_vlan_rx_add_vid(struct ql_adapter *qdev, u16 vid) { u32 enable_bit = MAC_ADDR_E; + int err; - if (ql_set_mac_addr_reg - (qdev, (u8 *) &enable_bit, MAC_ADDR_TYPE_VLAN, vid)) { + err = ql_set_mac_addr_reg(qdev, (u8 *) &enable_bit, + MAC_ADDR_TYPE_VLAN, vid); + if (err) netif_err(qdev, ifup, qdev->ndev, "Failed to init vlan address.\n"); - } + return err; } -static void qlge_vlan_rx_add_vid(struct net_device *ndev, u16 vid) +static int qlge_vlan_rx_add_vid(struct net_device *ndev, u16 vid) { struct ql_adapter *qdev = netdev_priv(ndev); int status; + int err; status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); if (status) - return; + return status; - __qlge_vlan_rx_add_vid(qdev, vid); + err = __qlge_vlan_rx_add_vid(qdev, vid); set_bit(vid, qdev->active_vlans); ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); + + return err; } -static void __qlge_vlan_rx_kill_vid(struct ql_adapter *qdev, u16 vid) +static int __qlge_vlan_rx_kill_vid(struct ql_adapter *qdev, u16 vid) { u32 enable_bit = 0; + int err; - if (ql_set_mac_addr_reg - (qdev, (u8 *) &enable_bit, MAC_ADDR_TYPE_VLAN, vid)) { + err = ql_set_mac_addr_reg(qdev, (u8 *) &enable_bit, + MAC_ADDR_TYPE_VLAN, vid); + if (err) netif_err(qdev, ifup, qdev->ndev, "Failed to clear vlan address.\n"); - } + return err; } -static void qlge_vlan_rx_kill_vid(struct net_device *ndev, u16 vid) +static int qlge_vlan_rx_kill_vid(struct net_device *ndev, u16 vid) { struct ql_adapter *qdev = netdev_priv(ndev); int status; + int err; status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); if (status) - return; + return status; - __qlge_vlan_rx_kill_vid(qdev, vid); + err = __qlge_vlan_rx_kill_vid(qdev, vid); clear_bit(vid, qdev->active_vlans); ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); + + return err; } static void qlge_restore_vlan(struct ql_adapter *qdev) diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c index 3a90af6d111c..4b19e9b0606b 100644 --- a/drivers/net/ethernet/tehuti/tehuti.c +++ b/drivers/net/ethernet/tehuti/tehuti.c @@ -727,9 +727,10 @@ static void __bdx_vlan_rx_vid(struct net_device *ndev, uint16_t vid, int enable) * @ndev network device * @vid VLAN vid to add */ -static void bdx_vlan_rx_add_vid(struct net_device *ndev, uint16_t vid) +static int bdx_vlan_rx_add_vid(struct net_device *ndev, uint16_t vid) { __bdx_vlan_rx_vid(ndev, vid, 1); + return 0; } /* @@ -737,9 +738,10 @@ static void bdx_vlan_rx_add_vid(struct net_device *ndev, uint16_t vid) * @ndev network device * @vid VLAN vid to kill */ -static void bdx_vlan_rx_kill_vid(struct net_device *ndev, unsigned short vid) +static int bdx_vlan_rx_kill_vid(struct net_device *ndev, unsigned short vid) { __bdx_vlan_rx_vid(ndev, vid, 0); + return 0; } /** diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c index 5587ecdf32e3..bcdbdc72b558 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -488,8 +488,8 @@ static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static const struct ethtool_ops netdev_ethtool_ops; static int rhine_close(struct net_device *dev); static void rhine_shutdown (struct pci_dev *pdev); -static void rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid); -static void rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid); +static int rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid); +static int rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid); static void rhine_set_cam(void __iomem *ioaddr, int idx, u8 *addr); static void rhine_set_vlan_cam(void __iomem *ioaddr, int idx, u8 *addr); static void rhine_set_cam_mask(void __iomem *ioaddr, u32 mask); @@ -1261,7 +1261,7 @@ static void rhine_update_vcam(struct net_device *dev) rhine_set_vlan_cam_mask(ioaddr, vCAMmask); } -static void rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct rhine_private *rp = netdev_priv(dev); @@ -1269,9 +1269,10 @@ static void rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) set_bit(vid, rp->active_vlans); rhine_update_vcam(dev); spin_unlock_irq(&rp->lock); + return 0; } -static void rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct rhine_private *rp = netdev_priv(dev); @@ -1279,6 +1280,7 @@ static void rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) clear_bit(vid, rp->active_vlans); rhine_update_vcam(dev); spin_unlock_irq(&rp->lock); + return 0; } static void init_registers(struct net_device *dev) diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c index 59bb5fd56afe..4128d6b8cc28 100644 --- a/drivers/net/ethernet/via/via-velocity.c +++ b/drivers/net/ethernet/via/via-velocity.c @@ -522,7 +522,7 @@ static void velocity_init_cam_filter(struct velocity_info *vptr) mac_set_vlan_cam_mask(regs, vptr->vCAMmask); } -static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct velocity_info *vptr = netdev_priv(dev); @@ -530,9 +530,10 @@ static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) set_bit(vid, vptr->active_vlans); velocity_init_cam_filter(vptr); spin_unlock_irq(&vptr->lock); + return 0; } -static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct velocity_info *vptr = netdev_priv(dev); @@ -540,6 +541,7 @@ static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid clear_bit(vid, vptr->active_vlans); velocity_init_cam_filter(vptr); spin_unlock_irq(&vptr->lock); + return 0; } static void velocity_init_rx_ring_indexes(struct velocity_info *vptr) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 74134970b709..2511bc5c34f3 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -520,7 +520,7 @@ static struct rtnl_link_stats64 *macvlan_dev_get_stats64(struct net_device *dev, return stats; } -static void macvlan_vlan_rx_add_vid(struct net_device *dev, +static int macvlan_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct macvlan_dev *vlan = netdev_priv(dev); @@ -528,10 +528,11 @@ static void macvlan_vlan_rx_add_vid(struct net_device *dev, const struct net_device_ops *ops = lowerdev->netdev_ops; if (ops->ndo_vlan_rx_add_vid) - ops->ndo_vlan_rx_add_vid(lowerdev, vid); + return ops->ndo_vlan_rx_add_vid(lowerdev, vid); + return 0; } -static void macvlan_vlan_rx_kill_vid(struct net_device *dev, +static int macvlan_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct macvlan_dev *vlan = netdev_priv(dev); @@ -539,7 +540,8 @@ static void macvlan_vlan_rx_kill_vid(struct net_device *dev, const struct net_device_ops *ops = lowerdev->netdev_ops; if (ops->ndo_vlan_rx_kill_vid) - ops->ndo_vlan_rx_kill_vid(lowerdev, vid); + return ops->ndo_vlan_rx_kill_vid(lowerdev, vid); + return 0; } static void macvlan_ethtool_get_drvinfo(struct net_device *dev, diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 064155d56bce..8e8bf958539e 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -902,7 +902,7 @@ team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) return stats; } -static void team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) +static int team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) { struct team *team = netdev_priv(dev); struct team_port *port; @@ -915,9 +915,11 @@ static void team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) ops->ndo_vlan_rx_add_vid(port->dev, vid); } rcu_read_unlock(); + + return 0; } -static void team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) +static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) { struct team *team = netdev_priv(dev); struct team_port *port; @@ -930,6 +932,8 @@ static void team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) ops->ndo_vlan_rx_kill_vid(port->dev, vid); } rcu_read_unlock(); + + return 0; } static int team_add_slave(struct net_device *dev, struct net_device *port_dev) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 5a961720f64c..609c51f90e6c 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -855,7 +855,7 @@ static void virtnet_set_rx_mode(struct net_device *dev) kfree(buf); } -static void virtnet_vlan_rx_add_vid(struct net_device *dev, u16 vid) +static int virtnet_vlan_rx_add_vid(struct net_device *dev, u16 vid) { struct virtnet_info *vi = netdev_priv(dev); struct scatterlist sg; @@ -865,9 +865,10 @@ static void virtnet_vlan_rx_add_vid(struct net_device *dev, u16 vid) if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN, VIRTIO_NET_CTRL_VLAN_ADD, &sg, 1, 0)) dev_warn(&dev->dev, "Failed to add VLAN ID %d.\n", vid); + return 0; } -static void virtnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid) +static int virtnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid) { struct virtnet_info *vi = netdev_priv(dev); struct scatterlist sg; @@ -877,6 +878,7 @@ static void virtnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid) if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN, VIRTIO_NET_CTRL_VLAN_DEL, &sg, 1, 0)) dev_warn(&dev->dev, "Failed to kill VLAN ID %d.\n", vid); + return 0; } static void virtnet_get_ringparam(struct net_device *dev, diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index d96bfb1ac20b..1c2ae11a9e35 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -1926,7 +1926,7 @@ vmxnet3_restore_vlan(struct vmxnet3_adapter *adapter) } -static void +static int vmxnet3_vlan_rx_add_vid(struct net_device *netdev, u16 vid) { struct vmxnet3_adapter *adapter = netdev_priv(netdev); @@ -1943,10 +1943,12 @@ vmxnet3_vlan_rx_add_vid(struct net_device *netdev, u16 vid) } set_bit(vid, adapter->active_vlans); + + return 0; } -static void +static int vmxnet3_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) { struct vmxnet3_adapter *adapter = netdev_priv(netdev); @@ -1963,6 +1965,8 @@ vmxnet3_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) } clear_bit(vid, adapter->active_vlans); + + return 0; } diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index a21ae3d549db..c4e2004bd0e8 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -301,21 +301,21 @@ static void qeth_l2_process_vlans(struct qeth_card *card) spin_unlock_bh(&card->vlanlock); } -static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct qeth_card *card = dev->ml_priv; struct qeth_vlan_vid *id; QETH_CARD_TEXT_(card, 4, "aid:%d", vid); if (!vid) - return; + return 0; if (card->info.type == QETH_CARD_TYPE_OSM) { QETH_CARD_TEXT(card, 3, "aidOSM"); - return; + return 0; } if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_CARD_TEXT(card, 3, "aidREC"); - return; + return 0; } id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); if (id) { @@ -324,10 +324,13 @@ static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) spin_lock_bh(&card->vlanlock); list_add_tail(&id->list, &card->vid_list); spin_unlock_bh(&card->vlanlock); + } else { + return -ENOMEM; } + return 0; } -static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct qeth_vlan_vid *id, *tmpid = NULL; struct qeth_card *card = dev->ml_priv; @@ -335,11 +338,11 @@ static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) QETH_CARD_TEXT_(card, 4, "kid:%d", vid); if (card->info.type == QETH_CARD_TYPE_OSM) { QETH_CARD_TEXT(card, 3, "kidOSM"); - return; + return 0; } if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_CARD_TEXT(card, 3, "kidREC"); - return; + return 0; } spin_lock_bh(&card->vlanlock); list_for_each_entry(id, &card->vid_list, list) { @@ -355,6 +358,7 @@ static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) kfree(tmpid); } qeth_l2_set_multicast_list(card->dev); + return 0; } static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index b2a55e3fde0b..b3b045c21e2c 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1869,15 +1869,15 @@ static void qeth_l3_free_vlan_addresses(struct qeth_card *card, qeth_l3_free_vlan_addresses6(card, vid); } -static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct qeth_card *card = dev->ml_priv; set_bit(vid, card->active_vlans); - return; + return 0; } -static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct qeth_card *card = dev->ml_priv; unsigned long flags; @@ -1885,7 +1885,7 @@ static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) QETH_CARD_TEXT_(card, 4, "kid:%d", vid); if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_CARD_TEXT(card, 3, "kidREC"); - return; + return 0; } spin_lock_irqsave(&card->vlanlock, flags); /* unregister IP addresses of vlan device */ @@ -1893,6 +1893,7 @@ static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) clear_bit(vid, card->active_vlans); spin_unlock_irqrestore(&card->vlanlock, flags); qeth_l3_set_multicast_list(card->dev); + return 0; } static inline int qeth_l3_rebuild_skb(struct qeth_card *card, diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index eef257c76a40..f7bff9615728 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -792,11 +792,11 @@ struct netdev_tc_txq { * 3. Update dev->stats asynchronously and atomically, and define * neither operation. * - * void (*ndo_vlan_rx_add_vid)(struct net_device *dev, unsigned short vid); + * int (*ndo_vlan_rx_add_vid)(struct net_device *dev, unsigned short vid); * If device support VLAN filtering (dev->features & NETIF_F_HW_VLAN_FILTER) * this function is called when a VLAN id is registered. * - * void (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); + * int (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); * If device support VLAN filtering (dev->features & NETIF_F_HW_VLAN_FILTER) * this function is called when a VLAN id is unregistered. * @@ -911,9 +911,9 @@ struct net_device_ops { struct rtnl_link_stats64 *storage); struct net_device_stats* (*ndo_get_stats)(struct net_device *dev); - void (*ndo_vlan_rx_add_vid)(struct net_device *dev, + int (*ndo_vlan_rx_add_vid)(struct net_device *dev, unsigned short vid); - void (*ndo_vlan_rx_kill_vid)(struct net_device *dev, + int (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); #ifdef CONFIG_NET_POLL_CONTROLLER void (*ndo_poll_controller)(struct net_device *dev); -- cgit v1.2.3 From 5b9ea6e022e9ba0fe39cb349ac40361f78d5da5b Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 8 Dec 2011 04:11:18 +0000 Subject: vlan: introduce vid list with reference counting This allows to keep track of vids needed to be in rx vlan filters of devices even if they are used in bond/team etc. vlan_info as well as vlan_group previously was, is allocated when first vid is added and dealocated whan last vid is deleted. vlan_group definition is moved to private header. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 17 +---- include/linux/netdevice.h | 3 +- net/8021q/vlan.c | 90 +++++++++---------------- net/8021q/vlan.h | 30 ++++++++- net/8021q/vlan_core.c | 168 +++++++++++++++++++++++++++++++++++++++++++--- 5 files changed, 219 insertions(+), 89 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 71168a6f3347..0c9691305298 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -74,22 +74,7 @@ static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb) /* found in socket.c */ extern void vlan_ioctl_set(int (*hook)(struct net *, void __user *)); -/* if this changes, algorithm will have to be reworked because this - * depends on completely exhausting the VLAN identifier space. Thus - * it gives constant time look-up, but in many cases it wastes memory. - */ -#define VLAN_GROUP_ARRAY_SPLIT_PARTS 8 -#define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS) - -struct vlan_group { - struct net_device *real_dev; /* The ethernet(like) device - * the vlan is attached to. - */ - unsigned int nr_vlans; - struct hlist_node hlist; /* linked list */ - struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS]; - struct rcu_head rcu; -}; +struct vlan_info; static inline int is_vlan_dev(struct net_device *dev) { diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f7bff9615728..603730804da5 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -55,7 +55,6 @@ #include -struct vlan_group; struct netpoll_info; struct phy_device; /* 802.11 specific */ @@ -1096,7 +1095,7 @@ struct net_device { /* Protocol specific pointers */ #if IS_ENABLED(CONFIG_VLAN_8021Q) - struct vlan_group __rcu *vlgrp; /* VLAN group */ + struct vlan_info __rcu *vlan_info; /* VLAN info */ #endif #if IS_ENABLED(CONFIG_NET_DSA) struct dsa_switch_tree *dsa_ptr; /* dsa specific data */ diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index dd9aa400888b..efea35b02e7f 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -51,27 +51,6 @@ const char vlan_version[] = DRV_VERSION; /* End of global variables definitions. */ -static void vlan_group_free(struct vlan_group *grp) -{ - int i; - - for (i = 0; i < VLAN_GROUP_ARRAY_SPLIT_PARTS; i++) - kfree(grp->vlan_devices_arrays[i]); - kfree(grp); -} - -static struct vlan_group *vlan_group_alloc(struct net_device *real_dev) -{ - struct vlan_group *grp; - - grp = kzalloc(sizeof(struct vlan_group), GFP_KERNEL); - if (!grp) - return NULL; - - grp->real_dev = real_dev; - return grp; -} - static int vlan_group_prealloc_vid(struct vlan_group *vg, u16 vlan_id) { struct net_device **array; @@ -92,22 +71,20 @@ static int vlan_group_prealloc_vid(struct vlan_group *vg, u16 vlan_id) return 0; } -static void vlan_rcu_free(struct rcu_head *rcu) -{ - vlan_group_free(container_of(rcu, struct vlan_group, rcu)); -} - void unregister_vlan_dev(struct net_device *dev, struct list_head *head) { struct vlan_dev_priv *vlan = vlan_dev_priv(dev); struct net_device *real_dev = vlan->real_dev; + struct vlan_info *vlan_info; struct vlan_group *grp; u16 vlan_id = vlan->vlan_id; ASSERT_RTNL(); - grp = rtnl_dereference(real_dev->vlgrp); - BUG_ON(!grp); + vlan_info = rtnl_dereference(real_dev->vlan_info); + BUG_ON(!vlan_info); + + grp = &vlan_info->grp; /* Take it out of our own structures, but be sure to interlock with * HW accelerating devices or SW vlan input packet processing if @@ -116,7 +93,7 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) if (vlan_id) vlan_vid_del(real_dev, vlan_id); - grp->nr_vlans--; + grp->nr_vlan_devs--; if (vlan->flags & VLAN_FLAG_GVRP) vlan_gvrp_request_leave(dev); @@ -128,16 +105,9 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) */ unregister_netdevice_queue(dev, head); - /* If the group is now empty, kill off the group. */ - if (grp->nr_vlans == 0) { + if (grp->nr_vlan_devs == 0) vlan_gvrp_uninit_applicant(real_dev); - RCU_INIT_POINTER(real_dev->vlgrp, NULL); - - /* Free the group, after all cpu's are done. */ - call_rcu(&grp->rcu, vlan_rcu_free); - } - /* Get rid of the vlan's reference to real_dev */ dev_put(real_dev); } @@ -169,17 +139,23 @@ int register_vlan_dev(struct net_device *dev) struct vlan_dev_priv *vlan = vlan_dev_priv(dev); struct net_device *real_dev = vlan->real_dev; u16 vlan_id = vlan->vlan_id; - struct vlan_group *grp, *ngrp = NULL; + struct vlan_info *vlan_info; + struct vlan_group *grp; int err; - grp = rtnl_dereference(real_dev->vlgrp); - if (!grp) { - ngrp = grp = vlan_group_alloc(real_dev); - if (!grp) - return -ENOBUFS; + err = vlan_vid_add(real_dev, vlan_id); + if (err) + return err; + + vlan_info = rtnl_dereference(real_dev->vlan_info); + /* vlan_info should be there now. vlan_vid_add took care of it */ + BUG_ON(!vlan_info); + + grp = &vlan_info->grp; + if (grp->nr_vlan_devs == 0) { err = vlan_gvrp_init_applicant(real_dev); if (err < 0) - goto out_free_group; + goto out_vid_del; } err = vlan_group_prealloc_vid(grp, vlan_id); @@ -200,23 +176,15 @@ int register_vlan_dev(struct net_device *dev) * it into our local structure. */ vlan_group_set_device(grp, vlan_id, dev); - grp->nr_vlans++; - - if (ngrp) { - rcu_assign_pointer(real_dev->vlgrp, ngrp); - } - vlan_vid_add(real_dev, vlan_id); + grp->nr_vlan_devs++; return 0; out_uninit_applicant: - if (ngrp) + if (grp->nr_vlan_devs == 0) vlan_gvrp_uninit_applicant(real_dev); -out_free_group: - if (ngrp) { - /* Free the group, after all cpu's are done. */ - call_rcu(&ngrp->rcu, vlan_rcu_free); - } +out_vid_del: + vlan_vid_del(real_dev, vlan_id); return err; } @@ -357,6 +325,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, { struct net_device *dev = ptr; struct vlan_group *grp; + struct vlan_info *vlan_info; int i, flgs; struct net_device *vlandev; struct vlan_dev_priv *vlan; @@ -372,9 +341,10 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, vlan_vid_add(dev, 0); } - grp = rtnl_dereference(dev->vlgrp); - if (!grp) + vlan_info = rtnl_dereference(dev->vlan_info); + if (!vlan_info) goto out; + grp = &vlan_info->grp; /* It is OK that we do not hold the group lock right now, * as we run under the RTNL lock. @@ -478,9 +448,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, if (!vlandev) continue; - /* unregistration of last vlan destroys group, abort + /* removal of last vid destroys vlan_info, abort * afterwards */ - if (grp->nr_vlans == 1) + if (vlan_info->nr_vids == 1) i = VLAN_N_VID; unregister_vlan_dev(vlandev, &list); diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h index d3c4ea4a3836..28d8dc20cb6d 100644 --- a/net/8021q/vlan.h +++ b/net/8021q/vlan.h @@ -3,6 +3,7 @@ #include #include +#include /** @@ -74,6 +75,29 @@ static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev) return netdev_priv(dev); } +/* if this changes, algorithm will have to be reworked because this + * depends on completely exhausting the VLAN identifier space. Thus + * it gives constant time look-up, but in many cases it wastes memory. + */ +#define VLAN_GROUP_ARRAY_SPLIT_PARTS 8 +#define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS) + +struct vlan_group { + unsigned int nr_vlan_devs; + struct hlist_node hlist; /* linked list */ + struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS]; +}; + +struct vlan_info { + struct net_device *real_dev; /* The ethernet(like) device + * the vlan is attached to. + */ + struct vlan_group grp; + struct list_head vid_list; + unsigned int nr_vids; + struct rcu_head rcu; +}; + static inline struct net_device *vlan_group_get_device(struct vlan_group *vg, u16 vlan_id) { @@ -97,10 +121,10 @@ static inline void vlan_group_set_device(struct vlan_group *vg, static inline struct net_device *vlan_find_dev(struct net_device *real_dev, u16 vlan_id) { - struct vlan_group *grp = rcu_dereference_rtnl(real_dev->vlgrp); + struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info); - if (grp) - return vlan_group_get_device(grp, vlan_id); + if (vlan_info) + return vlan_group_get_device(&vlan_info->grp, vlan_id); return NULL; } diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 544f9cb9678c..329e0313e01f 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -71,10 +71,10 @@ bool vlan_do_receive(struct sk_buff **skbp, bool last_handler) struct net_device *__vlan_find_dev_deep(struct net_device *real_dev, u16 vlan_id) { - struct vlan_group *grp = rcu_dereference_rtnl(real_dev->vlgrp); + struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info); - if (grp) { - return vlan_group_get_device(grp, vlan_id); + if (vlan_info) { + return vlan_group_get_device(&vlan_info->grp, vlan_id); } else { /* * Bonding slaves do not have grp assigned to themselves. @@ -147,25 +147,177 @@ err_free: return NULL; } -int vlan_vid_add(struct net_device *dev, unsigned short vid) + +/* + * vlan info and vid list + */ + +static void vlan_group_free(struct vlan_group *grp) +{ + int i; + + for (i = 0; i < VLAN_GROUP_ARRAY_SPLIT_PARTS; i++) + kfree(grp->vlan_devices_arrays[i]); +} + +static void vlan_info_free(struct vlan_info *vlan_info) +{ + vlan_group_free(&vlan_info->grp); + kfree(vlan_info); +} + +static void vlan_info_rcu_free(struct rcu_head *rcu) +{ + vlan_info_free(container_of(rcu, struct vlan_info, rcu)); +} + +static struct vlan_info *vlan_info_alloc(struct net_device *dev) +{ + struct vlan_info *vlan_info; + + vlan_info = kzalloc(sizeof(struct vlan_info), GFP_KERNEL); + if (!vlan_info) + return NULL; + + vlan_info->real_dev = dev; + INIT_LIST_HEAD(&vlan_info->vid_list); + return vlan_info; +} + +struct vlan_vid_info { + struct list_head list; + unsigned short vid; + int refcount; +}; + +static struct vlan_vid_info *vlan_vid_info_get(struct vlan_info *vlan_info, + unsigned short vid) +{ + struct vlan_vid_info *vid_info; + + list_for_each_entry(vid_info, &vlan_info->vid_list, list) { + if (vid_info->vid == vid) + return vid_info; + } + return NULL; +} + +static struct vlan_vid_info *vlan_vid_info_alloc(unsigned short vid) +{ + struct vlan_vid_info *vid_info; + + vid_info = kzalloc(sizeof(struct vlan_vid_info), GFP_KERNEL); + if (!vid_info) + return NULL; + vid_info->vid = vid; + + return vid_info; +} + +static int __vlan_vid_add(struct vlan_info *vlan_info, unsigned short vid, + struct vlan_vid_info **pvid_info) { + struct net_device *dev = vlan_info->real_dev; const struct net_device_ops *ops = dev->netdev_ops; + struct vlan_vid_info *vid_info; + int err; + + vid_info = vlan_vid_info_alloc(vid); + if (!vid_info) + return -ENOMEM; if ((dev->features & NETIF_F_HW_VLAN_FILTER) && - ops->ndo_vlan_rx_add_vid) { - return ops->ndo_vlan_rx_add_vid(dev, vid); + ops->ndo_vlan_rx_add_vid) { + err = ops->ndo_vlan_rx_add_vid(dev, vid); + if (err) { + kfree(vid_info); + return err; + } } + list_add(&vid_info->list, &vlan_info->vid_list); + vlan_info->nr_vids++; + *pvid_info = vid_info; return 0; } + +int vlan_vid_add(struct net_device *dev, unsigned short vid) +{ + struct vlan_info *vlan_info; + struct vlan_vid_info *vid_info; + bool vlan_info_created = false; + int err; + + ASSERT_RTNL(); + + vlan_info = rtnl_dereference(dev->vlan_info); + if (!vlan_info) { + vlan_info = vlan_info_alloc(dev); + if (!vlan_info) + return -ENOMEM; + vlan_info_created = true; + } + vid_info = vlan_vid_info_get(vlan_info, vid); + if (!vid_info) { + err = __vlan_vid_add(vlan_info, vid, &vid_info); + if (err) + goto out_free_vlan_info; + } + vid_info->refcount++; + + if (vlan_info_created) + rcu_assign_pointer(dev->vlan_info, vlan_info); + + return 0; + +out_free_vlan_info: + if (vlan_info_created) + kfree(vlan_info); + return err; +} EXPORT_SYMBOL(vlan_vid_add); -void vlan_vid_del(struct net_device *dev, unsigned short vid) +static void __vlan_vid_del(struct vlan_info *vlan_info, + struct vlan_vid_info *vid_info) { + struct net_device *dev = vlan_info->real_dev; const struct net_device_ops *ops = dev->netdev_ops; + unsigned short vid = vid_info->vid; + int err; if ((dev->features & NETIF_F_HW_VLAN_FILTER) && ops->ndo_vlan_rx_kill_vid) { - ops->ndo_vlan_rx_kill_vid(dev, vid); + err = ops->ndo_vlan_rx_kill_vid(dev, vid); + if (err) { + pr_warn("failed to kill vid %d for device %s\n", + vid, dev->name); + } + } + list_del(&vid_info->list); + kfree(vid_info); + vlan_info->nr_vids--; +} + +void vlan_vid_del(struct net_device *dev, unsigned short vid) +{ + struct vlan_info *vlan_info; + struct vlan_vid_info *vid_info; + + ASSERT_RTNL(); + + vlan_info = rtnl_dereference(dev->vlan_info); + if (!vlan_info) + return; + + vid_info = vlan_vid_info_get(vlan_info, vid); + if (!vid_info) + return; + vid_info->refcount--; + if (vid_info->refcount == 0) { + __vlan_vid_del(vlan_info, vid_info); + if (vlan_info->nr_vids == 0) { + RCU_INIT_POINTER(dev->vlan_info, NULL); + call_rcu(&vlan_info->rcu, vlan_info_rcu_free); + } } } EXPORT_SYMBOL(vlan_vid_del); -- cgit v1.2.3 From 5c3ddec73d01a1fae9409c197078cb02c42238c3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 13 Dec 2011 16:44:22 -0500 Subject: net: Remove unused neighbour layer ops. It's simpler to just keep these things out until there is a real user of them, so we can see what the needs actually are, rather than keep these things around as useless overhead. Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 - include/net/neighbour.h | 1 - net/core/neighbour.c | 10 ---------- 3 files changed, 12 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 603730804da5..6b9d4edb7c26 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -974,7 +974,6 @@ struct net_device_ops { int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); int (*ndo_neigh_construct)(struct neighbour *n); - void (*ndo_neigh_destroy)(struct neighbour *n); }; /* diff --git a/include/net/neighbour.h b/include/net/neighbour.h index e31f0a86f9b7..6814c4d61c1c 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -43,7 +43,6 @@ struct neigh_parms { #endif struct net_device *dev; struct neigh_parms *next; - int (*neigh_setup)(struct neighbour *); void (*neigh_cleanup)(struct neighbour *); struct neigh_table *tbl; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 4af151e1bf5d..d57a40a2598c 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -497,13 +497,6 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey, } } - /* Device specific setup. */ - if (n->parms->neigh_setup && - (error = n->parms->neigh_setup(n)) < 0) { - rc = ERR_PTR(error); - goto out_neigh_release; - } - n->confirmed = jiffies - (n->parms->base_reachable_time << 1); write_lock_bh(&tbl->lock); @@ -717,9 +710,6 @@ void neigh_destroy(struct neighbour *neigh) skb_queue_purge(&neigh->arp_queue); neigh->arp_queue_len_bytes = 0; - if (dev->netdev_ops->ndo_neigh_destroy) - dev->netdev_ops->ndo_neigh_destroy(neigh); - dev_put(dev); neigh_parms_put(neigh->parms); -- cgit v1.2.3 From 447f219190bf0368b8b36cf60155744cb43510df Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 19 Dec 2011 15:04:41 -0500 Subject: Revert "net: Remove unused neighbour layer ops." This reverts commit 5c3ddec73d01a1fae9409c197078cb02c42238c3. S390 qeth driver actually still uses the setup ops. Reported-by: Frank Blaschka Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + include/net/neighbour.h | 1 + net/core/neighbour.c | 10 ++++++++++ 3 files changed, 12 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 6b9d4edb7c26..603730804da5 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -974,6 +974,7 @@ struct net_device_ops { int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); int (*ndo_neigh_construct)(struct neighbour *n); + void (*ndo_neigh_destroy)(struct neighbour *n); }; /* diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 6814c4d61c1c..e31f0a86f9b7 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -43,6 +43,7 @@ struct neigh_parms { #endif struct net_device *dev; struct neigh_parms *next; + int (*neigh_setup)(struct neighbour *); void (*neigh_cleanup)(struct neighbour *); struct neigh_table *tbl; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index d57a40a2598c..4af151e1bf5d 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -497,6 +497,13 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey, } } + /* Device specific setup. */ + if (n->parms->neigh_setup && + (error = n->parms->neigh_setup(n)) < 0) { + rc = ERR_PTR(error); + goto out_neigh_release; + } + n->confirmed = jiffies - (n->parms->base_reachable_time << 1); write_lock_bh(&tbl->lock); @@ -710,6 +717,9 @@ void neigh_destroy(struct neighbour *neigh) skb_queue_purge(&neigh->arp_queue); neigh->arp_queue_len_bytes = 0; + if (dev->netdev_ops->ndo_neigh_destroy) + dev->netdev_ops->ndo_neigh_destroy(neigh); + dev_put(dev); neigh_parms_put(neigh->parms); -- cgit v1.2.3 From 933393f58fef9963eac61db8093689544e29a600 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 22 Dec 2011 11:58:51 -0600 Subject: percpu: Remove irqsafe_cpu_xxx variants We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. -tj: This is part of on-going percpu API cleanup. For detailed discussion of the subject, please refer to the following thread. http://thread.gmane.org/gmane.linux.kernel/1222078 Signed-off-by: Christoph Lameter Signed-off-by: Tejun Heo LKML-Reference: --- arch/s390/include/asm/percpu.h | 44 ++++----- arch/x86/include/asm/percpu.h | 28 ------ include/linux/netdevice.h | 4 +- include/linux/netfilter/x_tables.h | 4 +- include/linux/percpu.h | 190 +++++-------------------------------- include/net/snmp.h | 14 +-- mm/slub.c | 6 +- net/caif/caif_dev.c | 4 +- net/caif/cffrml.c | 4 +- 9 files changed, 62 insertions(+), 236 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h index 5325c89a5843..0fbd1899c7b0 100644 --- a/arch/s390/include/asm/percpu.h +++ b/arch/s390/include/asm/percpu.h @@ -19,7 +19,7 @@ #define ARCH_NEEDS_WEAK_PER_CPU #endif -#define arch_irqsafe_cpu_to_op(pcp, val, op) \ +#define arch_this_cpu_to_op(pcp, val, op) \ do { \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ old__, new__, prev__; \ @@ -41,27 +41,27 @@ do { \ preempt_enable(); \ } while (0) -#define irqsafe_cpu_add_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_add_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_add_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_add_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) +#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_and_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_and_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_and_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_and_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) +#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_or_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_or_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_or_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_or_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) +#define this_cpu_or_1(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_or_2(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_xor_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) -#define irqsafe_cpu_xor_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) -#define irqsafe_cpu_xor_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) -#define irqsafe_cpu_xor_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_1(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_2(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_4(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_8(pcp, val) arch_this_cpu_to_op(pcp, val, ^) -#define arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) \ +#define arch_this_cpu_cmpxchg(pcp, oval, nval) \ ({ \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ ret__; \ @@ -79,10 +79,10 @@ do { \ ret__; \ }) -#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_1(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_2(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_4(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_8(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) #include diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index 3470c9d0ebba..562ccb5323de 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -414,22 +414,6 @@ do { \ #define this_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval) #define this_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_add_1(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_add_2(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_add_4(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_and_1(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_and_2(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_and_4(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_or_1(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_or_2(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_or_4(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xchg_1(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval) - #ifndef CONFIG_M386 #define __this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val) #define __this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val) @@ -445,9 +429,6 @@ do { \ #define this_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) #define this_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) #endif /* !CONFIG_M386 */ #ifdef CONFIG_X86_CMPXCHG64 @@ -467,7 +448,6 @@ do { \ #define __this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) #define this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) -#define irqsafe_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) #endif /* CONFIG_X86_CMPXCHG64 */ /* @@ -495,13 +475,6 @@ do { \ #define this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval) #define this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_add_8(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_and_8(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) - /* * Pretty complex macro to generate cmpxchg16 instruction. The instruction * is not supported on early AMD64 processors so we must be able to emulate @@ -532,7 +505,6 @@ do { \ #define __this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) #define this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) -#define irqsafe_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) #endif diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a82ad4dd306a..ca8d9bc4e502 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2115,7 +2115,7 @@ extern void netdev_run_todo(void); */ static inline void dev_put(struct net_device *dev) { - irqsafe_cpu_dec(*dev->pcpu_refcnt); + this_cpu_dec(*dev->pcpu_refcnt); } /** @@ -2126,7 +2126,7 @@ static inline void dev_put(struct net_device *dev) */ static inline void dev_hold(struct net_device *dev) { - irqsafe_cpu_inc(*dev->pcpu_refcnt); + this_cpu_inc(*dev->pcpu_refcnt); } /* Carrier loss detection, dial on demand. The functions netif_carrier_on diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h index 32cddf78b13e..8d674a786744 100644 --- a/include/linux/netfilter/x_tables.h +++ b/include/linux/netfilter/x_tables.h @@ -471,7 +471,7 @@ DECLARE_PER_CPU(seqcount_t, xt_recseq); * * Begin packet processing : all readers must wait the end * 1) Must be called with preemption disabled - * 2) softirqs must be disabled too (or we should use irqsafe_cpu_add()) + * 2) softirqs must be disabled too (or we should use this_cpu_add()) * Returns : * 1 if no recursion on this cpu * 0 if recursion detected @@ -503,7 +503,7 @@ static inline unsigned int xt_write_recseq_begin(void) * * End packet processing : all readers can proceed * 1) Must be called with preemption disabled - * 2) softirqs must be disabled too (or we should use irqsafe_cpu_add()) + * 2) softirqs must be disabled too (or we should use this_cpu_add()) */ static inline void xt_write_recseq_end(unsigned int addend) { diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 9ca008f0c542..32cd1f67462e 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -172,10 +172,10 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr); * equal char, int or long. percpu_read() evaluates to a lvalue and * all others to void. * - * These operations are guaranteed to be atomic w.r.t. preemption. - * The generic versions use plain get/put_cpu_var(). Archs are + * These operations are guaranteed to be atomic. + * The generic versions disable interrupts. Archs are * encouraged to implement single-instruction alternatives which don't - * require preemption protection. + * require protection. */ #ifndef percpu_read # define percpu_read(var) \ @@ -347,9 +347,10 @@ do { \ #define _this_cpu_generic_to_op(pcp, val, op) \ do { \ - preempt_disable(); \ + unsigned long flags; \ + local_irq_save(flags); \ *__this_cpu_ptr(&(pcp)) op val; \ - preempt_enable(); \ + local_irq_restore(flags); \ } while (0) #ifndef this_cpu_write @@ -447,10 +448,11 @@ do { \ #define _this_cpu_generic_add_return(pcp, val) \ ({ \ typeof(pcp) ret__; \ - preempt_disable(); \ + unsigned long flags; \ + local_irq_save(flags); \ __this_cpu_add(pcp, val); \ ret__ = __this_cpu_read(pcp); \ - preempt_enable(); \ + local_irq_restore(flags); \ ret__; \ }) @@ -476,10 +478,11 @@ do { \ #define _this_cpu_generic_xchg(pcp, nval) \ ({ typeof(pcp) ret__; \ - preempt_disable(); \ + unsigned long flags; \ + local_irq_save(flags); \ ret__ = __this_cpu_read(pcp); \ __this_cpu_write(pcp, nval); \ - preempt_enable(); \ + local_irq_restore(flags); \ ret__; \ }) @@ -501,12 +504,14 @@ do { \ #endif #define _this_cpu_generic_cmpxchg(pcp, oval, nval) \ -({ typeof(pcp) ret__; \ - preempt_disable(); \ +({ \ + typeof(pcp) ret__; \ + unsigned long flags; \ + local_irq_save(flags); \ ret__ = __this_cpu_read(pcp); \ if (ret__ == (oval)) \ __this_cpu_write(pcp, nval); \ - preempt_enable(); \ + local_irq_restore(flags); \ ret__; \ }) @@ -538,10 +543,11 @@ do { \ #define _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \ ({ \ int ret__; \ - preempt_disable(); \ + unsigned long flags; \ + local_irq_save(flags); \ ret__ = __this_cpu_generic_cmpxchg_double(pcp1, pcp2, \ oval1, oval2, nval1, nval2); \ - preempt_enable(); \ + local_irq_restore(flags); \ ret__; \ }) @@ -567,9 +573,9 @@ do { \ #endif /* - * Generic percpu operations that do not require preemption handling. + * Generic percpu operations for context that are safe from preemption/interrupts. * Either we do not care about races or the caller has the - * responsibility of handling preemptions issues. Arch code can still + * responsibility of handling preemption/interrupt issues. Arch code can still * override these instructions since the arch per cpu code may be more * efficient and may actually get race freeness for free (that is the * case for x86 for example). @@ -802,156 +808,4 @@ do { \ __pcpu_double_call_return_bool(__this_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2)) #endif -/* - * IRQ safe versions of the per cpu RMW operations. Note that these operations - * are *not* safe against modification of the same variable from another - * processors (which one gets when using regular atomic operations) - * They are guaranteed to be atomic vs. local interrupts and - * preemption only. - */ -#define irqsafe_cpu_generic_to_op(pcp, val, op) \ -do { \ - unsigned long flags; \ - local_irq_save(flags); \ - *__this_cpu_ptr(&(pcp)) op val; \ - local_irq_restore(flags); \ -} while (0) - -#ifndef irqsafe_cpu_add -# ifndef irqsafe_cpu_add_1 -# define irqsafe_cpu_add_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) -# endif -# ifndef irqsafe_cpu_add_2 -# define irqsafe_cpu_add_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) -# endif -# ifndef irqsafe_cpu_add_4 -# define irqsafe_cpu_add_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) -# endif -# ifndef irqsafe_cpu_add_8 -# define irqsafe_cpu_add_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) -# endif -# define irqsafe_cpu_add(pcp, val) __pcpu_size_call(irqsafe_cpu_add_, (pcp), (val)) -#endif - -#ifndef irqsafe_cpu_sub -# define irqsafe_cpu_sub(pcp, val) irqsafe_cpu_add((pcp), -(val)) -#endif - -#ifndef irqsafe_cpu_inc -# define irqsafe_cpu_inc(pcp) irqsafe_cpu_add((pcp), 1) -#endif - -#ifndef irqsafe_cpu_dec -# define irqsafe_cpu_dec(pcp) irqsafe_cpu_sub((pcp), 1) -#endif - -#ifndef irqsafe_cpu_and -# ifndef irqsafe_cpu_and_1 -# define irqsafe_cpu_and_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) -# endif -# ifndef irqsafe_cpu_and_2 -# define irqsafe_cpu_and_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) -# endif -# ifndef irqsafe_cpu_and_4 -# define irqsafe_cpu_and_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) -# endif -# ifndef irqsafe_cpu_and_8 -# define irqsafe_cpu_and_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) -# endif -# define irqsafe_cpu_and(pcp, val) __pcpu_size_call(irqsafe_cpu_and_, (val)) -#endif - -#ifndef irqsafe_cpu_or -# ifndef irqsafe_cpu_or_1 -# define irqsafe_cpu_or_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) -# endif -# ifndef irqsafe_cpu_or_2 -# define irqsafe_cpu_or_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) -# endif -# ifndef irqsafe_cpu_or_4 -# define irqsafe_cpu_or_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) -# endif -# ifndef irqsafe_cpu_or_8 -# define irqsafe_cpu_or_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) -# endif -# define irqsafe_cpu_or(pcp, val) __pcpu_size_call(irqsafe_cpu_or_, (val)) -#endif - -#ifndef irqsafe_cpu_xor -# ifndef irqsafe_cpu_xor_1 -# define irqsafe_cpu_xor_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) -# endif -# ifndef irqsafe_cpu_xor_2 -# define irqsafe_cpu_xor_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) -# endif -# ifndef irqsafe_cpu_xor_4 -# define irqsafe_cpu_xor_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) -# endif -# ifndef irqsafe_cpu_xor_8 -# define irqsafe_cpu_xor_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) -# endif -# define irqsafe_cpu_xor(pcp, val) __pcpu_size_call(irqsafe_cpu_xor_, (val)) -#endif - -#define irqsafe_cpu_generic_cmpxchg(pcp, oval, nval) \ -({ \ - typeof(pcp) ret__; \ - unsigned long flags; \ - local_irq_save(flags); \ - ret__ = __this_cpu_read(pcp); \ - if (ret__ == (oval)) \ - __this_cpu_write(pcp, nval); \ - local_irq_restore(flags); \ - ret__; \ -}) - -#ifndef irqsafe_cpu_cmpxchg -# ifndef irqsafe_cpu_cmpxchg_1 -# define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) irqsafe_cpu_generic_cmpxchg(pcp, oval, nval) -# endif -# ifndef irqsafe_cpu_cmpxchg_2 -# define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) irqsafe_cpu_generic_cmpxchg(pcp, oval, nval) -# endif -# ifndef irqsafe_cpu_cmpxchg_4 -# define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) irqsafe_cpu_generic_cmpxchg(pcp, oval, nval) -# endif -# ifndef irqsafe_cpu_cmpxchg_8 -# define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) irqsafe_cpu_generic_cmpxchg(pcp, oval, nval) -# endif -# define irqsafe_cpu_cmpxchg(pcp, oval, nval) \ - __pcpu_size_call_return2(irqsafe_cpu_cmpxchg_, (pcp), oval, nval) -#endif - -#define irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \ -({ \ - int ret__; \ - unsigned long flags; \ - local_irq_save(flags); \ - ret__ = __this_cpu_generic_cmpxchg_double(pcp1, pcp2, \ - oval1, oval2, nval1, nval2); \ - local_irq_restore(flags); \ - ret__; \ -}) - -#ifndef irqsafe_cpu_cmpxchg_double -# ifndef irqsafe_cpu_cmpxchg_double_1 -# define irqsafe_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -# endif -# ifndef irqsafe_cpu_cmpxchg_double_2 -# define irqsafe_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -# endif -# ifndef irqsafe_cpu_cmpxchg_double_4 -# define irqsafe_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -# endif -# ifndef irqsafe_cpu_cmpxchg_double_8 -# define irqsafe_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -# endif -# define irqsafe_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - __pcpu_double_call_return_bool(irqsafe_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2)) -#endif - #endif /* __LINUX_PERCPU_H */ diff --git a/include/net/snmp.h b/include/net/snmp.h index 8f0f9ac0307f..e067aed7e378 100644 --- a/include/net/snmp.h +++ b/include/net/snmp.h @@ -129,33 +129,33 @@ struct linux_xfrm_mib { __this_cpu_inc(mib[0]->mibs[field]) #define SNMP_INC_STATS_USER(mib, field) \ - irqsafe_cpu_inc(mib[0]->mibs[field]) + this_cpu_inc(mib[0]->mibs[field]) #define SNMP_INC_STATS_ATOMIC_LONG(mib, field) \ atomic_long_inc(&mib->mibs[field]) #define SNMP_INC_STATS(mib, field) \ - irqsafe_cpu_inc(mib[0]->mibs[field]) + this_cpu_inc(mib[0]->mibs[field]) #define SNMP_DEC_STATS(mib, field) \ - irqsafe_cpu_dec(mib[0]->mibs[field]) + this_cpu_dec(mib[0]->mibs[field]) #define SNMP_ADD_STATS_BH(mib, field, addend) \ __this_cpu_add(mib[0]->mibs[field], addend) #define SNMP_ADD_STATS_USER(mib, field, addend) \ - irqsafe_cpu_add(mib[0]->mibs[field], addend) + this_cpu_add(mib[0]->mibs[field], addend) #define SNMP_ADD_STATS(mib, field, addend) \ - irqsafe_cpu_add(mib[0]->mibs[field], addend) + this_cpu_add(mib[0]->mibs[field], addend) /* * Use "__typeof__(*mib[0]) *ptr" instead of "__typeof__(mib[0]) ptr" * to make @ptr a non-percpu pointer. */ #define SNMP_UPD_PO_STATS(mib, basefield, addend) \ do { \ - irqsafe_cpu_inc(mib[0]->mibs[basefield##PKTS]); \ - irqsafe_cpu_add(mib[0]->mibs[basefield##OCTETS], addend); \ + this_cpu_inc(mib[0]->mibs[basefield##PKTS]); \ + this_cpu_add(mib[0]->mibs[basefield##OCTETS], addend); \ } while (0) #define SNMP_UPD_PO_STATS_BH(mib, basefield, addend) \ do { \ diff --git a/mm/slub.c b/mm/slub.c index ed3334d9b6da..0011489c28ac 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1978,7 +1978,7 @@ int put_cpu_partial(struct kmem_cache *s, struct page *page, int drain) page->pobjects = pobjects; page->next = oldpage; - } while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); + } while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); stat(s, CPU_PARTIAL_FREE); return pobjects; } @@ -2304,7 +2304,7 @@ redo: * Since this is without lock semantics the protection is only against * code executing on this cpu *not* from access by other cpus. */ - if (unlikely(!irqsafe_cpu_cmpxchg_double( + if (unlikely(!this_cpu_cmpxchg_double( s->cpu_slab->freelist, s->cpu_slab->tid, object, tid, get_freepointer_safe(s, object), next_tid(tid)))) { @@ -2534,7 +2534,7 @@ redo: if (likely(page == c->page)) { set_freepointer(s, object, c->freelist); - if (unlikely(!irqsafe_cpu_cmpxchg_double( + if (unlikely(!this_cpu_cmpxchg_double( s->cpu_slab->freelist, s->cpu_slab->tid, c->freelist, tid, object, next_tid(tid)))) { diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c index f1fa1f6e658d..64930cc2746a 100644 --- a/net/caif/caif_dev.c +++ b/net/caif/caif_dev.c @@ -69,12 +69,12 @@ static struct caif_device_entry_list *caif_device_list(struct net *net) static void caifd_put(struct caif_device_entry *e) { - irqsafe_cpu_dec(*e->pcpu_refcnt); + this_cpu_dec(*e->pcpu_refcnt); } static void caifd_hold(struct caif_device_entry *e) { - irqsafe_cpu_inc(*e->pcpu_refcnt); + this_cpu_inc(*e->pcpu_refcnt); } static int caifd_refcnt_read(struct caif_device_entry *e) diff --git a/net/caif/cffrml.c b/net/caif/cffrml.c index d3ca87bf23b7..0a7df7ef062d 100644 --- a/net/caif/cffrml.c +++ b/net/caif/cffrml.c @@ -177,14 +177,14 @@ void cffrml_put(struct cflayer *layr) { struct cffrml *this = container_obj(layr); if (layr != NULL && this->pcpu_refcnt != NULL) - irqsafe_cpu_dec(*this->pcpu_refcnt); + this_cpu_dec(*this->pcpu_refcnt); } void cffrml_hold(struct cflayer *layr) { struct cffrml *this = container_obj(layr); if (layr != NULL && this->pcpu_refcnt != NULL) - irqsafe_cpu_inc(*this->pcpu_refcnt); + this_cpu_inc(*this->pcpu_refcnt); } int cffrml_refcnt_read(struct cflayer *layr) -- cgit v1.2.3 From 60b778ce519625102d3f72a2071ea72a05e990ce Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 24 Dec 2011 06:56:49 +0000 Subject: rfs: better sizing of dev_flow_table Aim of this patch is to provide full range of rps_flow_cnt on 64bit arches. Theorical limit on number of flows is 2^32 Fix some buggy RPS/RFS macros as well. Signed-off-by: Eric Dumazet CC: Tom Herbert CC: Xi Wang CC: Laurent Chavey Signed-off-by: David S. Miller --- include/linux/netdevice.h | 8 ++++---- net/core/net-sysfs.c | 44 +++++++++++++++++++++++++++----------------- 2 files changed, 31 insertions(+), 21 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 603730804da5..a776a675c0e5 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -597,7 +597,7 @@ struct rps_map { struct rcu_head rcu; u16 cpus[0]; }; -#define RPS_MAP_SIZE(_num) (sizeof(struct rps_map) + (_num * sizeof(u16))) +#define RPS_MAP_SIZE(_num) (sizeof(struct rps_map) + ((_num) * sizeof(u16))) /* * The rps_dev_flow structure contains the mapping of a flow to a CPU, the @@ -621,7 +621,7 @@ struct rps_dev_flow_table { struct rps_dev_flow flows[0]; }; #define RPS_DEV_FLOW_TABLE_SIZE(_num) (sizeof(struct rps_dev_flow_table) + \ - (_num * sizeof(struct rps_dev_flow))) + ((_num) * sizeof(struct rps_dev_flow))) /* * The rps_sock_flow_table contains mappings of flows to the last CPU @@ -632,7 +632,7 @@ struct rps_sock_flow_table { u16 ents[0]; }; #define RPS_SOCK_FLOW_TABLE_SIZE(_num) (sizeof(struct rps_sock_flow_table) + \ - (_num * sizeof(u16))) + ((_num) * sizeof(u16))) #define RPS_NO_CPU 0xffff @@ -684,7 +684,7 @@ struct xps_map { struct rcu_head rcu; u16 queues[0]; }; -#define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + (_num * sizeof(u16))) +#define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16))) #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map)) \ / sizeof(u16)) diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 4b4d0b0a3543..abf4393a77b3 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -622,15 +622,15 @@ static ssize_t show_rps_dev_flow_table_cnt(struct netdev_rx_queue *queue, char *buf) { struct rps_dev_flow_table *flow_table; - unsigned int val = 0; + unsigned long val = 0; rcu_read_lock(); flow_table = rcu_dereference(queue->rps_flow_table); if (flow_table) - val = flow_table->mask + 1; + val = (unsigned long)flow_table->mask + 1; rcu_read_unlock(); - return sprintf(buf, "%u\n", val); + return sprintf(buf, "%lu\n", val); } static void rps_dev_flow_table_release_work(struct work_struct *work) @@ -654,36 +654,46 @@ static ssize_t store_rps_dev_flow_table_cnt(struct netdev_rx_queue *queue, struct rx_queue_attribute *attr, const char *buf, size_t len) { - unsigned int count; - char *endp; + unsigned long mask, count; struct rps_dev_flow_table *table, *old_table; static DEFINE_SPINLOCK(rps_dev_flow_lock); + int rc; if (!capable(CAP_NET_ADMIN)) return -EPERM; - count = simple_strtoul(buf, &endp, 0); - if (endp == buf) - return -EINVAL; + rc = kstrtoul(buf, 0, &count); + if (rc < 0) + return rc; if (count) { - int i; - - if (count > INT_MAX) + mask = count - 1; + /* mask = roundup_pow_of_two(count) - 1; + * without overflows... + */ + while ((mask | (mask >> 1)) != mask) + mask |= (mask >> 1); + /* On 64 bit arches, must check mask fits in table->mask (u32), + * and on 32bit arches, must check RPS_DEV_FLOW_TABLE_SIZE(mask + 1) + * doesnt overflow. + */ +#if BITS_PER_LONG > 32 + if (mask > (unsigned long)(u32)mask) return -EINVAL; - count = roundup_pow_of_two(count); - if (count > (ULONG_MAX - sizeof(struct rps_dev_flow_table)) +#else + if (mask > (ULONG_MAX - RPS_DEV_FLOW_TABLE_SIZE(1)) / sizeof(struct rps_dev_flow)) { /* Enforce a limit to prevent overflow */ return -EINVAL; } - table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(count)); +#endif + table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(mask + 1)); if (!table) return -ENOMEM; - table->mask = count - 1; - for (i = 0; i < count; i++) - table->flows[i].cpu = RPS_NO_CPU; + table->mask = mask; + for (count = 0; count <= mask; count++) + table->flows[count].cpu = RPS_NO_CPU; } else table = NULL; -- cgit v1.2.3 From 68bad94ed801d955535cb50dde3412944a24530c Mon Sep 17 00:00:00 2001 From: Neerav Parikh Date: Wed, 4 Jan 2012 20:23:39 +0000 Subject: netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call This adds a new ndo_get_fcoe_hbainfo() call in net_device_ops for FCoE protocol stack. If supported by the underlying device, the FCoE protocol stack will call this to get device specific information from the underlying device. This information will then be utilized by the FCoE protocol stack to register Fiber Channel HBA attributes with the Fiber Channel Management Service via Fabric Device Management Interface (FDMI) as per the T11 FC-GS specification. Changes in v2: - As per comments from David Miller aligning the parameters of the ndo_get_fcoe_hbainfo() Signed-off-by: Neerav Parikh Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- include/linux/netdevice.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a776a675c0e5..a1d109590da4 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -707,6 +707,23 @@ struct netdev_tc_txq { u16 offset; }; +#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) +/* + * This structure is to hold information about the device + * configured to run FCoE protocol stack. + */ +struct netdev_fcoe_hbainfo { + char manufacturer[64]; + char serial_number[64]; + char hardware_version[64]; + char driver_version[64]; + char optionrom_version[64]; + char firmware_version[64]; + char model[256]; + char model_description[256]; +}; +#endif + /* * This structure defines the management hooks for network devices. * The following hooks can be defined; unless noted otherwise, they are @@ -847,6 +864,13 @@ struct netdev_tc_txq { * perform necessary setup and returns 1 to indicate the device is set up * successfully to perform DDP on this I/O, otherwise this returns 0. * + * int (*ndo_fcoe_get_hbainfo)(struct net_device *dev, + * struct netdev_fcoe_hbainfo *hbainfo); + * Called when the FCoE Protocol stack wants information on the underlying + * device. This information is utilized by the FCoE protocol stack to + * register attributes with Fiber Channel management service as per the + * FC-GS Fabric Device Management Information(FDMI) specification. + * * int (*ndo_fcoe_get_wwn)(struct net_device *dev, u64 *wwn, int type); * Called when the underlying device wants to override default World Wide * Name (WWN) generation mechanism in FCoE protocol stack to pass its own @@ -950,6 +974,8 @@ struct net_device_ops { u16 xid, struct scatterlist *sgl, unsigned int sgc); + int (*ndo_fcoe_get_hbainfo)(struct net_device *dev, + struct netdev_fcoe_hbainfo *hbainfo); #endif #if IS_ENABLED(CONFIG_LIBFCOE) -- cgit v1.2.3 From 2429f7ac2ef429378536d87fcbbf6f424aa5b47f Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Mon, 9 Jan 2012 06:36:54 +0000 Subject: net: introduce netif_addr_lock_nested() and call if when appropriate dev_uc_sync() and dev_mc_sync() are acquiring netif_addr_lock for destination device of synchronization. Since netif_addr_lock is already held at the time for source device, this triggers lockdep deadlock warning. There's no way this deadlock can happen so use spin_lock_nested() to silence the warning. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/netdevice.h | 5 +++++ net/core/dev_addr_lists.c | 12 ++++++------ 2 files changed, 11 insertions(+), 6 deletions(-) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a1d109590da4..d0522bb2d4a0 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2450,6 +2450,11 @@ static inline void netif_addr_lock(struct net_device *dev) spin_lock(&dev->addr_list_lock); } +static inline void netif_addr_lock_nested(struct net_device *dev) +{ + spin_lock_nested(&dev->addr_list_lock, SINGLE_DEPTH_NESTING); +} + static inline void netif_addr_lock_bh(struct net_device *dev) { spin_lock_bh(&dev->addr_list_lock); diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c index c34ce9f9c976..29c07fef9228 100644 --- a/net/core/dev_addr_lists.c +++ b/net/core/dev_addr_lists.c @@ -439,11 +439,11 @@ int dev_uc_sync(struct net_device *to, struct net_device *from) if (to->addr_len != from->addr_len) return -EINVAL; - netif_addr_lock_bh(to); + netif_addr_lock_nested(to); err = __hw_addr_sync(&to->uc, &from->uc, to->addr_len); if (!err) __dev_set_rx_mode(to); - netif_addr_unlock_bh(to); + netif_addr_unlock(to); return err; } EXPORT_SYMBOL(dev_uc_sync); @@ -463,7 +463,7 @@ void dev_uc_unsync(struct net_device *to, struct net_device *from) return; netif_addr_lock_bh(from); - netif_addr_lock(to); + netif_addr_lock_nested(to); __hw_addr_unsync(&to->uc, &from->uc, to->addr_len); __dev_set_rx_mode(to); netif_addr_unlock(to); @@ -602,11 +602,11 @@ int dev_mc_sync(struct net_device *to, struct net_device *from) if (to->addr_len != from->addr_len) return -EINVAL; - netif_addr_lock_bh(to); + netif_addr_lock_nested(to); err = __hw_addr_sync(&to->mc, &from->mc, to->addr_len); if (!err) __dev_set_rx_mode(to); - netif_addr_unlock_bh(to); + netif_addr_unlock(to); return err; } EXPORT_SYMBOL(dev_mc_sync); @@ -626,7 +626,7 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from) return; netif_addr_lock_bh(from); - netif_addr_lock(to); + netif_addr_lock_nested(to); __hw_addr_unsync(&to->mc, &from->mc, to->addr_len); __dev_set_rx_mode(to); netif_addr_unlock(to); -- cgit v1.2.3