BMC/Intel-BMC/linux.git/net/bridge/br_sysfs_br.c, branch master

net: bridge: constify attribute_group structures.

2017-06-29T19:48:52+00:00

attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 2645 896 0 3541 dd5 net/bridge/br_sysfs_br.o File size After adding 'const': text data bss dec hex filename 2701 832 0 3533 dcd net/bridge/br_sysfs_br.o Signed-off-by: Arvind Yadav Signed-off-by: David S. Miller

sched/headers: Prepare to move signal wakeup & sigpending methods from into

2017-03-02T07:42:32+00:00

Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

bridge: move to workqueue gc

2017-02-07T03:53:13+00:00

Move the fdb garbage collector to a workqueue which fires at least 10 milliseconds apart and cleans chain by chain allowing for other tasks to run in the meantime. When having thousands of fdbs the system is much more responsive. Most importantly remove the need to check if the matched entry has expired in __br_fdb_get that causes false-sharing and is completely unnecessary if we cleanup entries, at worst we'll get 10ms of traffic for that entry before it gets deleted. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-12-07T02:33:19+00:00

net: bridge: set error code on failure

2016-12-05T18:26:22+00:00

Function br_sysfs_addbr() does not set error code when the call kobject_create_and_add() returns a NULL pointer. It may be better to return "-ENOMEM" when kobject_create_and_add() fails. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188781 Signed-off-by: Pan Bian Acked-by: Stephen Hemminger Signed-off-by: David S. Miller

bridge: mcast: add MLDv2 querier support

2016-11-21T18:16:58+00:00

This patch adds basic support for MLDv2 queries, the default is MLDv1 as before. A new multicast option - multicast_mld_version, adds the ability to change it between 1 and 2 via netlink and sysfs. The MLD option is disabled if CONFIG_IPV6 is disabled. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

bridge: mcast: add IGMPv3 query support

2016-11-21T18:16:58+00:00

This patch adds basic support for IGMPv3 queries, the default is IGMPv2 as before. A new multicast option - multicast_igmp_version, adds the ability to change it between 2 and 3 via netlink and sysfs. The option struct member is in a 4 byte hole in net_bridge. There also a few minor style adjustments in br_multicast_new_group and br_multicast_add_group. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

net: bridge: add support for IGMP/MLD stats and export them via netlink

2016-06-30T10:18:24+00:00

This patch adds stats support for the currently used IGMP/MLD types by the bridge. The stats are per-port (plus one stat per-bridge) and per-direction (RX/TX). The stats are exported via netlink via the new linkxstats API (RTM_GETSTATS). In order to minimize the performance impact, a new option is used to enable/disable the stats - multicast_stats_enabled, similar to the recent vlan stats. Also in order to avoid multiple IGMP/MLD type lookups and checks, we make use of the current "igmp" member of the bridge private skb->cb region to record the type on Rx (both host-generated and external packets pass by multicast_rcv()). We can do that since the igmp member was used as a boolean and all the valid IGMP/MLD types are positive values. The normal bridge fast-path is not affected at all, the only affected paths are the flooding ones and since we make use of the IGMP/MLD type, we can quickly determine if the packet should be counted using cache-hot data (cb's igmp member). We add counters for: * IGMP Queries * IGMP Leaves * IGMP v1/v2/v3 reports * MLD Queries * MLD Leaves * MLD v1/v2 reports These are invaluable when monitoring or debugging complex multicast setups with bridges. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

bridge: vlan: learn to count

2016-05-03T02:27:06+00:00

Add support for per-VLAN Tx/Rx statistics. Every global vlan context gets allocated a per-cpu stats which is then set in each per-port vlan context for quick access. The br_allowed_ingress() common function is used to account for Rx packets and the br_handle_vlan() common function is used to account for Tx packets. Stats accounting is performed only if the bridge-wide vlan_stats_enabled option is set either via sysfs or netlink. A struct hole between vlan_enabled and vlan_proto is used for the new option so it is in the same cache line. Currently it is binary (on/off) but it is intentionally restricted to exactly 0 and 1 since other values will be used in the future for different purposes (e.g. per-port stats). Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

bridge: a netlink notification should be sent when those attributes are changed by br_sysfs_br

2016-04-14T02:42:33+00:00

Now when we change the attributes of bridge or br_port by netlink, a relevant netlink notification will be sent, but if we change them by ioctl or sysfs, no notification will be sent. We should ensure that whenever those attributes change internally or from sysfs/ioctl, that a netlink notification is sent out to listeners. Also, NetworkManager will use this in the future to listen for out-of-band bridge master attribute updates and incorporate them into the runtime configuration. This patch is used for br_sysfs_br. and we also need to remove some rtnl_trylock in old functions so that we can call it in a common one. For group_addr_store, we cannot make it use store_bridge_parm, because it's not a string-to-long convert, we will add notification on it individually. Signed-off-by: Xin Long Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller