From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/bonding/bond_sysfs.c | 851 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 851 insertions(+) create mode 100644 drivers/net/bonding/bond_sysfs.c (limited to 'drivers/net/bonding/bond_sysfs.c') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c new file mode 100644 index 000000000..8996bd0a1 --- /dev/null +++ b/drivers/net/bonding/bond_sysfs.c @@ -0,0 +1,851 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) + +/* "show" function for the bond_masters attribute. + * The class parameter is ignored. + */ +static ssize_t bonding_show_bonds(struct class *cls, + struct class_attribute *attr, + char *buf) +{ + struct bond_net *bn = + container_of(attr, struct bond_net, class_attr_bonding_masters); + int res = 0; + struct bonding *bond; + + rtnl_lock(); + + list_for_each_entry(bond, &bn->dev_list, bond_list) { + if (res > (PAGE_SIZE - IFNAMSIZ)) { + /* not enough space for another interface name */ + if ((PAGE_SIZE - res) > 10) + res = PAGE_SIZE - 10; + res += sysfs_emit_at(buf, res, "++more++ "); + break; + } + res += sysfs_emit_at(buf, res, "%s ", bond->dev->name); + } + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ + + rtnl_unlock(); + return res; +} + +static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) +{ + struct bonding *bond; + + list_for_each_entry(bond, &bn->dev_list, bond_list) { + if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) + return bond->dev; + } + return NULL; +} + +/* "store" function for the bond_masters attribute. This is what + * creates and deletes entire bonds. + * + * The class parameter is ignored. + */ +static ssize_t bonding_store_bonds(struct class *cls, + struct class_attribute *attr, + const char *buffer, size_t count) +{ + struct bond_net *bn = + container_of(attr, struct bond_net, class_attr_bonding_masters); + char command[IFNAMSIZ + 1] = {0, }; + char *ifname; + int rv, res = count; + + sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ + ifname = command + 1; + if ((strlen(command) <= 1) || + !dev_valid_name(ifname)) + goto err_no_cmd; + + if (command[0] == '+') { + pr_info("%s is being created...\n", ifname); + rv = bond_create(bn->net, ifname); + if (rv) { + if (rv == -EEXIST) + pr_info("%s already exists\n", ifname); + else + pr_info("%s creation failed\n", ifname); + res = rv; + } + } else if (command[0] == '-') { + struct net_device *bond_dev; + + rtnl_lock(); + bond_dev = bond_get_by_name(bn, ifname); + if (bond_dev) { + pr_info("%s is being deleted...\n", ifname); + unregister_netdevice(bond_dev); + } else { + pr_err("unable to delete non-existent %s\n", ifname); + res = -ENODEV; + } + rtnl_unlock(); + } else + goto err_no_cmd; + + /* Always return either count or an error. If you return 0, you'll + * get called forever, which is bad. + */ + return res; + +err_no_cmd: + pr_err("no command found in bonding_masters - use +ifname or -ifname\n"); + return -EPERM; +} + +/* class attribute for bond_masters file. This ends up in /sys/class/net */ +static const struct class_attribute class_attr_bonding_masters = { + .attr = { + .name = "bonding_masters", + .mode = 0644, + }, + .show = bonding_show_bonds, + .store = bonding_store_bonds, +}; + +/* Generic "store" method for bonding sysfs option setting */ +static ssize_t bonding_sysfs_store_option(struct device *d, + struct device_attribute *attr, + const char *buffer, size_t count) +{ + struct bonding *bond = to_bond(d); + const struct bond_option *opt; + char *buffer_clone; + int ret; + + opt = bond_opt_get_by_name(attr->attr.name); + if (WARN_ON(!opt)) + return -ENOENT; + buffer_clone = kstrndup(buffer, count, GFP_KERNEL); + if (!buffer_clone) + return -ENOMEM; + ret = bond_opt_tryset_rtnl(bond, opt->id, buffer_clone); + if (!ret) + ret = count; + kfree(buffer_clone); + + return ret; +} + +/* Show the slaves in the current bond. */ +static ssize_t bonding_show_slaves(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct bonding *bond = to_bond(d); + struct list_head *iter; + struct slave *slave; + int res = 0; + + if (!rtnl_trylock()) + return restart_syscall(); + + bond_for_each_slave(bond, slave, iter) { + if (res > (PAGE_SIZE - IFNAMSIZ)) { + /* not enough space for another interface name */ + if ((PAGE_SIZE - res) > 10) + res = PAGE_SIZE - 10; + res += sysfs_emit_at(buf, res, "++more++ "); + break; + } + res += sysfs_emit_at(buf, res, "%s ", slave->dev->name); + } + + rtnl_unlock(); + + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ + + return res; +} +static DEVICE_ATTR(slaves, 0644, bonding_show_slaves, + bonding_sysfs_store_option); + +/* Show the bonding mode. */ +static ssize_t bonding_show_mode(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_MODE, BOND_MODE(bond)); + + return sysfs_emit(buf, "%s %d\n", val->string, BOND_MODE(bond)); +} +static DEVICE_ATTR(mode, 0644, bonding_show_mode, bonding_sysfs_store_option); + +/* Show the bonding transmit hash method. */ +static ssize_t bonding_show_xmit_hash(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); + + return sysfs_emit(buf, "%s %d\n", val->string, bond->params.xmit_policy); +} +static DEVICE_ATTR(xmit_hash_policy, 0644, + bonding_show_xmit_hash, bonding_sysfs_store_option); + +/* Show arp_validate. */ +static ssize_t bonding_show_arp_validate(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, + bond->params.arp_validate); + + return sysfs_emit(buf, "%s %d\n", val->string, bond->params.arp_validate); +} +static DEVICE_ATTR(arp_validate, 0644, bonding_show_arp_validate, + bonding_sysfs_store_option); + +/* Show arp_all_targets. */ +static ssize_t bonding_show_arp_all_targets(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, + bond->params.arp_all_targets); + return sysfs_emit(buf, "%s %d\n", + val->string, bond->params.arp_all_targets); +} +static DEVICE_ATTR(arp_all_targets, 0644, + bonding_show_arp_all_targets, bonding_sysfs_store_option); + +/* Show fail_over_mac. */ +static ssize_t bonding_show_fail_over_mac(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, + bond->params.fail_over_mac); + + return sysfs_emit(buf, "%s %d\n", val->string, bond->params.fail_over_mac); +} +static DEVICE_ATTR(fail_over_mac, 0644, + bonding_show_fail_over_mac, bonding_sysfs_store_option); + +/* Show the arp timer interval. */ +static ssize_t bonding_show_arp_interval(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.arp_interval); +} +static DEVICE_ATTR(arp_interval, 0644, + bonding_show_arp_interval, bonding_sysfs_store_option); + +/* Show the arp targets. */ +static ssize_t bonding_show_arp_targets(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + int i, res = 0; + + for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { + if (bond->params.arp_targets[i]) + res += sysfs_emit_at(buf, res, "%pI4 ", + &bond->params.arp_targets[i]); + } + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ + + return res; +} +static DEVICE_ATTR(arp_ip_target, 0644, + bonding_show_arp_targets, bonding_sysfs_store_option); + +/* Show the arp missed max. */ +static ssize_t bonding_show_missed_max(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%u\n", bond->params.missed_max); +} +static DEVICE_ATTR(arp_missed_max, 0644, + bonding_show_missed_max, bonding_sysfs_store_option); + +/* Show the up and down delays. */ +static ssize_t bonding_show_downdelay(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.downdelay * bond->params.miimon); +} +static DEVICE_ATTR(downdelay, 0644, + bonding_show_downdelay, bonding_sysfs_store_option); + +static ssize_t bonding_show_updelay(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.updelay * bond->params.miimon); + +} +static DEVICE_ATTR(updelay, 0644, + bonding_show_updelay, bonding_sysfs_store_option); + +static ssize_t bonding_show_peer_notif_delay(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", + bond->params.peer_notif_delay * bond->params.miimon); +} +static DEVICE_ATTR(peer_notif_delay, 0644, + bonding_show_peer_notif_delay, bonding_sysfs_store_option); + +/* Show the LACP activity and interval. */ +static ssize_t bonding_show_lacp_active(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_LACP_ACTIVE, bond->params.lacp_active); + + return sysfs_emit(buf, "%s %d\n", val->string, bond->params.lacp_active); +} +static DEVICE_ATTR(lacp_active, 0644, + bonding_show_lacp_active, bonding_sysfs_store_option); + +static ssize_t bonding_show_lacp_rate(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast); + + return sysfs_emit(buf, "%s %d\n", val->string, bond->params.lacp_fast); +} +static DEVICE_ATTR(lacp_rate, 0644, + bonding_show_lacp_rate, bonding_sysfs_store_option); + +static ssize_t bonding_show_min_links(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%u\n", bond->params.min_links); +} +static DEVICE_ATTR(min_links, 0644, + bonding_show_min_links, bonding_sysfs_store_option); + +static ssize_t bonding_show_ad_select(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select); + + return sysfs_emit(buf, "%s %d\n", val->string, bond->params.ad_select); +} +static DEVICE_ATTR(ad_select, 0644, + bonding_show_ad_select, bonding_sysfs_store_option); + +/* Show the number of peer notifications to send after a failover event. */ +static ssize_t bonding_show_num_peer_notif(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.num_peer_notif); +} +static DEVICE_ATTR(num_grat_arp, 0644, + bonding_show_num_peer_notif, bonding_sysfs_store_option); +static DEVICE_ATTR(num_unsol_na, 0644, + bonding_show_num_peer_notif, bonding_sysfs_store_option); + +/* Show the MII monitor interval. */ +static ssize_t bonding_show_miimon(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.miimon); +} +static DEVICE_ATTR(miimon, 0644, + bonding_show_miimon, bonding_sysfs_store_option); + +/* Show the primary slave. */ +static ssize_t bonding_show_primary(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + struct slave *primary; + int count = 0; + + rcu_read_lock(); + primary = rcu_dereference(bond->primary_slave); + if (primary) + count = sysfs_emit(buf, "%s\n", primary->dev->name); + rcu_read_unlock(); + + return count; +} +static DEVICE_ATTR(primary, 0644, + bonding_show_primary, bonding_sysfs_store_option); + +/* Show the primary_reselect flag. */ +static ssize_t bonding_show_primary_reselect(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + const struct bond_opt_value *val; + + val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, + bond->params.primary_reselect); + + return sysfs_emit(buf, "%s %d\n", + val->string, bond->params.primary_reselect); +} +static DEVICE_ATTR(primary_reselect, 0644, + bonding_show_primary_reselect, bonding_sysfs_store_option); + +/* Show the use_carrier flag. */ +static ssize_t bonding_show_carrier(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.use_carrier); +} +static DEVICE_ATTR(use_carrier, 0644, + bonding_show_carrier, bonding_sysfs_store_option); + + +/* Show currently active_slave. */ +static ssize_t bonding_show_active_slave(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + struct net_device *slave_dev; + int count = 0; + + rcu_read_lock(); + slave_dev = bond_option_active_slave_get_rcu(bond); + if (slave_dev) + count = sysfs_emit(buf, "%s\n", slave_dev->name); + rcu_read_unlock(); + + return count; +} +static DEVICE_ATTR(active_slave, 0644, + bonding_show_active_slave, bonding_sysfs_store_option); + +/* Show link status of the bond interface. */ +static ssize_t bonding_show_mii_status(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + bool active = netif_carrier_ok(bond->dev); + + return sysfs_emit(buf, "%s\n", active ? "up" : "down"); +} +static DEVICE_ATTR(mii_status, 0444, bonding_show_mii_status, NULL); + +/* Show current 802.3ad aggregator ID. */ +static ssize_t bonding_show_ad_aggregator(struct device *d, + struct device_attribute *attr, + char *buf) +{ + int count = 0; + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD) { + struct ad_info ad_info; + + count = sysfs_emit(buf, "%d\n", + bond_3ad_get_active_agg_info(bond, &ad_info) + ? 0 : ad_info.aggregator_id); + } + + return count; +} +static DEVICE_ATTR(ad_aggregator, 0444, bonding_show_ad_aggregator, NULL); + + +/* Show number of active 802.3ad ports. */ +static ssize_t bonding_show_ad_num_ports(struct device *d, + struct device_attribute *attr, + char *buf) +{ + int count = 0; + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD) { + struct ad_info ad_info; + + count = sysfs_emit(buf, "%d\n", + bond_3ad_get_active_agg_info(bond, &ad_info) + ? 0 : ad_info.ports); + } + + return count; +} +static DEVICE_ATTR(ad_num_ports, 0444, bonding_show_ad_num_ports, NULL); + + +/* Show current 802.3ad actor key. */ +static ssize_t bonding_show_ad_actor_key(struct device *d, + struct device_attribute *attr, + char *buf) +{ + int count = 0; + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { + struct ad_info ad_info; + + count = sysfs_emit(buf, "%d\n", + bond_3ad_get_active_agg_info(bond, &ad_info) + ? 0 : ad_info.actor_key); + } + + return count; +} +static DEVICE_ATTR(ad_actor_key, 0444, bonding_show_ad_actor_key, NULL); + + +/* Show current 802.3ad partner key. */ +static ssize_t bonding_show_ad_partner_key(struct device *d, + struct device_attribute *attr, + char *buf) +{ + int count = 0; + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { + struct ad_info ad_info; + + count = sysfs_emit(buf, "%d\n", + bond_3ad_get_active_agg_info(bond, &ad_info) + ? 0 : ad_info.partner_key); + } + + return count; +} +static DEVICE_ATTR(ad_partner_key, 0444, bonding_show_ad_partner_key, NULL); + + +/* Show current 802.3ad partner mac. */ +static ssize_t bonding_show_ad_partner_mac(struct device *d, + struct device_attribute *attr, + char *buf) +{ + int count = 0; + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { + struct ad_info ad_info; + + if (!bond_3ad_get_active_agg_info(bond, &ad_info)) + count = sysfs_emit(buf, "%pM\n", ad_info.partner_system); + } + + return count; +} +static DEVICE_ATTR(ad_partner_mac, 0444, bonding_show_ad_partner_mac, NULL); + +/* Show the queue_ids of the slaves in the current bond. */ +static ssize_t bonding_show_queue_id(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + struct list_head *iter; + struct slave *slave; + int res = 0; + + if (!rtnl_trylock()) + return restart_syscall(); + + bond_for_each_slave(bond, slave, iter) { + if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { + /* not enough space for another interface_name:queue_id pair */ + if ((PAGE_SIZE - res) > 10) + res = PAGE_SIZE - 10; + res += sysfs_emit_at(buf, res, "++more++ "); + break; + } + res += sysfs_emit_at(buf, res, "%s:%d ", + slave->dev->name, slave->queue_id); + } + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ + + rtnl_unlock(); + + return res; +} +static DEVICE_ATTR(queue_id, 0644, bonding_show_queue_id, + bonding_sysfs_store_option); + + +/* Show the all_slaves_active flag. */ +static ssize_t bonding_show_slaves_active(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.all_slaves_active); +} +static DEVICE_ATTR(all_slaves_active, 0644, + bonding_show_slaves_active, bonding_sysfs_store_option); + +/* Show the number of IGMP membership reports to send on link failure */ +static ssize_t bonding_show_resend_igmp(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.resend_igmp); +} +static DEVICE_ATTR(resend_igmp, 0644, + bonding_show_resend_igmp, bonding_sysfs_store_option); + + +static ssize_t bonding_show_lp_interval(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.lp_interval); +} +static DEVICE_ATTR(lp_interval, 0644, + bonding_show_lp_interval, bonding_sysfs_store_option); + +static ssize_t bonding_show_tlb_dynamic_lb(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sysfs_emit(buf, "%d\n", bond->params.tlb_dynamic_lb); +} +static DEVICE_ATTR(tlb_dynamic_lb, 0644, + bonding_show_tlb_dynamic_lb, bonding_sysfs_store_option); + +static ssize_t bonding_show_packets_per_slave(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + unsigned int packets_per_slave = bond->params.packets_per_slave; + + return sysfs_emit(buf, "%u\n", packets_per_slave); +} +static DEVICE_ATTR(packets_per_slave, 0644, + bonding_show_packets_per_slave, bonding_sysfs_store_option); + +static ssize_t bonding_show_ad_actor_sys_prio(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) + return sysfs_emit(buf, "%hu\n", bond->params.ad_actor_sys_prio); + + return 0; +} +static DEVICE_ATTR(ad_actor_sys_prio, 0644, + bonding_show_ad_actor_sys_prio, bonding_sysfs_store_option); + +static ssize_t bonding_show_ad_actor_system(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) + return sysfs_emit(buf, "%pM\n", bond->params.ad_actor_system); + + return 0; +} + +static DEVICE_ATTR(ad_actor_system, 0644, + bonding_show_ad_actor_system, bonding_sysfs_store_option); + +static ssize_t bonding_show_ad_user_port_key(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) + return sysfs_emit(buf, "%hu\n", bond->params.ad_user_port_key); + + return 0; +} +static DEVICE_ATTR(ad_user_port_key, 0644, + bonding_show_ad_user_port_key, bonding_sysfs_store_option); + +static struct attribute *per_bond_attrs[] = { + &dev_attr_slaves.attr, + &dev_attr_mode.attr, + &dev_attr_fail_over_mac.attr, + &dev_attr_arp_validate.attr, + &dev_attr_arp_all_targets.attr, + &dev_attr_arp_interval.attr, + &dev_attr_arp_ip_target.attr, + &dev_attr_downdelay.attr, + &dev_attr_updelay.attr, + &dev_attr_peer_notif_delay.attr, + &dev_attr_lacp_active.attr, + &dev_attr_lacp_rate.attr, + &dev_attr_ad_select.attr, + &dev_attr_xmit_hash_policy.attr, + &dev_attr_num_grat_arp.attr, + &dev_attr_num_unsol_na.attr, + &dev_attr_miimon.attr, + &dev_attr_primary.attr, + &dev_attr_primary_reselect.attr, + &dev_attr_use_carrier.attr, + &dev_attr_active_slave.attr, + &dev_attr_mii_status.attr, + &dev_attr_ad_aggregator.attr, + &dev_attr_ad_num_ports.attr, + &dev_attr_ad_actor_key.attr, + &dev_attr_ad_partner_key.attr, + &dev_attr_ad_partner_mac.attr, + &dev_attr_queue_id.attr, + &dev_attr_all_slaves_active.attr, + &dev_attr_resend_igmp.attr, + &dev_attr_min_links.attr, + &dev_attr_lp_interval.attr, + &dev_attr_packets_per_slave.attr, + &dev_attr_tlb_dynamic_lb.attr, + &dev_attr_ad_actor_sys_prio.attr, + &dev_attr_ad_actor_system.attr, + &dev_attr_ad_user_port_key.attr, + &dev_attr_arp_missed_max.attr, + NULL, +}; + +static const struct attribute_group bonding_group = { + .name = "bonding", + .attrs = per_bond_attrs, +}; + +/* Initialize sysfs. This sets up the bonding_masters file in + * /sys/class/net. + */ +int bond_create_sysfs(struct bond_net *bn) +{ + int ret; + + bn->class_attr_bonding_masters = class_attr_bonding_masters; + sysfs_attr_init(&bn->class_attr_bonding_masters.attr); + + ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, + bn->net); + /* Permit multiple loads of the module by ignoring failures to + * create the bonding_masters sysfs file. Bonding devices + * created by second or subsequent loads of the module will + * not be listed in, or controllable by, bonding_masters, but + * will have the usual "bonding" sysfs directory. + * + * This is done to preserve backwards compatibility for + * initscripts/sysconfig, which load bonding multiple times to + * configure multiple bonding devices. + */ + if (ret == -EEXIST) { + /* Is someone being kinky and naming a device bonding_master? */ + if (netdev_name_in_use(bn->net, + class_attr_bonding_masters.attr.name)) + pr_err("network device named %s already exists in sysfs\n", + class_attr_bonding_masters.attr.name); + ret = 0; + } + + return ret; + +} + +/* Remove /sys/class/net/bonding_masters. */ +void bond_destroy_sysfs(struct bond_net *bn) +{ + netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); +} + +/* Initialize sysfs for each bond. This sets up and registers + * the 'bondctl' directory for each individual bond under /sys/class/net. + */ +void bond_prepare_sysfs_group(struct bonding *bond) +{ + bond->dev->sysfs_groups[0] = &bonding_group; +} + -- cgit v1.2.3