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path: root/drivers/net/bonding/bond_procfs.c
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* net: don't include ethtool.h from netdevice.hJakub Kicinski2020-11-231-0/+1
| | | | | | | | | | | | | | | | linux/netdevice.h is included in very many places, touching any of its dependecies causes large incremental builds. Drop the linux/ethtool.h include, linux/netdevice.h just needs a forward declaration of struct ethtool_ops. Fix all the places which made use of this implicit include. Acked-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Shannon Nelson <snelson@pensando.io> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Link: https://lore.kernel.org/r/20201120225052.1427503-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* bonding: add an option to specify a delay between peer notificationsVincent Bernat2019-07-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, gratuitous ARP/ND packets are sent every `miimon' milliseconds. This commit allows a user to specify a custom delay through a new option, `peer_notif_delay'. Like for `updelay' and `downdelay', this delay should be a multiple of `miimon' to avoid managing an additional work queue. The configuration logic is copied from `updelay' and `downdelay'. However, the default value cannot be set using a module parameter: Netlink or sysfs should be used to configure this feature. When setting `miimon' to 100 and `peer_notif_delay' to 500, we can observe the 500 ms delay is respected: 20:30:19.354693 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:19.874892 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:20.394919 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:20.914963 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 In bond_mii_monitor(), I have tried to keep the lock logic readable. The change is due to the fact we cannot rely on a notification to lower the value of `bond->send_peer_notif' as `NETDEV_NOTIFY_PEERS' is only triggered once every N times, while we need to decrement the counter each time. iproute2 also needs to be updated to be able to specify this new attribute through `ip link'. Signed-off-by: Vincent Bernat <vincent@bernat.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: switch to proc_create_seq_dataChristoph Hellwig2018-05-161-30/+6
| | | | | | | And use proc private data directly instead of doing a detour through seq->private. Signed-off-by: Christoph Hellwig <hch@lst.de>
* drivers/net: Use octal not symbolic permissionsJoe Perches2018-03-261-1/+1
| | | | | | | | | | | | | | | Prefer the direct use of octal for permissions. Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace and some typing. Miscellanea: o Whitespace neatening around these conversions. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* bonding: attempt to better support longer hw addressesJarod Wilson2017-04-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | People are using bonding over Infiniband IPoIB connections, and who knows what else. Infiniband has a hardware address length of 20 octets (INFINIBAND_ALEN), and the network core defines a MAX_ADDR_LEN of 32. Various places in the bonding code are currently hard-wired to 6 octets (ETH_ALEN), such as the 3ad code, which I've left untouched here. Besides, only alb is currently possible on Infiniband links right now anyway, due to commit 1533e7731522, so the alb code is where most of the changes are. One major component of this change is the addition of a bond_hw_addr_copy function that takes a length argument, instead of using ether_addr_copy everywhere that hardware addresses need to be copied about. The other major component of this change is converting the bonding code from using struct sockaddr for address storage to struct sockaddr_storage, as the former has an address storage space of only 14, while the latter is 128 minus a few, which is necessary to support bonding over device with up to MAX_ADDR_LEN octet hardware addresses. Additionally, this probably fixes up some memory corruption issues with the current code, where it's possible to write an infiniband hardware address into a sockaddr declared on the stack. Lightly tested on a dual mlx4 IPoIB setup, which properly shows a 20-octet hardware address now: $ cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: fault-tolerance (active-backup) (fail_over_mac active) Primary Slave: mlx4_ib0 (primary_reselect always) Currently Active Slave: mlx4_ib0 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 100 Down Delay (ms): 100 Slave Interface: mlx4_ib0 MII Status: up Speed: Unknown Duplex: Unknown Link Failure Count: 0 Permanent HW addr: 80:00:02:08:fe:80:00:00:00:00:00:00:e4:1d:2d:03:00:1d:67:01 Slave queue ID: 0 Slave Interface: mlx4_ib1 MII Status: up Speed: Unknown Duplex: Unknown Link Failure Count: 0 Permanent HW addr: 80:00:02:09:fe:80:00:00:00:00:00:01:e4:1d:2d:03:00:1d:67:02 Slave queue ID: 0 Also tested with a standard 1Gbps NIC bonding setup (with a mix of e1000 and e1000e cards), running LNST's bonding tests. CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Veaceslav Falico <vfalico@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: netdev@vger.kernel.org Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Display LACP info only to CAP_NET_ADMIN capable userMahesh Bandewar2015-06-231-48/+53
| | | | | | | | | | | | | | | | Actor and Partner details can be accessed via proc-fs, sys-fs entries or netlink interface. These interfaces are world readable at this moment. The earlier patch-series made the LACP communication secure to avoid nuisance attack from within the same L2 domain but it did not prevent "someone unprivileged" looking at that information on host and perform the same act. This patch essentially avoids spitting those entries if the user in question does not have enough privileges. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Allow userspace to set actors' macaddr in an AD-system.Mahesh Bandewar2015-05-111-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an AD system, the communication between actor and partner is the business between these two entities. In the current setup anyone on the same L2 can "guess" the LACPDU contents and then possibly send the spoofed LACPDUs and trick the partner causing connectivity issues for the AD system. This patch allows to use a random mac-address obscuring it's identity making it harder for someone in the L2 is do the same thing. This patch allows user-space to choose the mac-address for the AD-system. This mac-address can not be NULL or a Multicast. If the mac-address is set from user-space; kernel will honor it and will not overwrite it. In the absence (value from user space); the logic will default to using the masters' mac as the mac-address for the AD-system. It can be set using example code below - # modprobe bonding mode=4 # sys_mac_addr=$(printf '%02x:%02x:%02x:%02x:%02x:%02x' \ $(( (RANDOM & 0xFE) | 0x02 )) \ $(( RANDOM & 0xFF )) \ $(( RANDOM & 0xFF )) \ $(( RANDOM & 0xFF )) \ $(( RANDOM & 0xFF )) \ $(( RANDOM & 0xFF ))) # echo $sys_mac_addr > /sys/class/net/bond0/bonding/ad_actor_system # echo +eth1 > /sys/class/net/bond0/bonding/slaves ... # ip link set bond0 up Signed-off-by: Mahesh Bandewar <maheshb@google.com> Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com> [jt: fixed up style issues reported by checkpatch] Signed-off-by: Jonathan Toppins <jtoppins@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Allow userspace to set actors' system_priority in AD systemMahesh Bandewar2015-05-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | This patch allows user to randomize the system-priority in an ad-system. The allowed range is 1 - 0xFFFF while default value is 0xFFFF. If user does not specify this value, the system defaults to 0xFFFF, which is what it was before this patch. Following example code could set the value - # modprobe bonding mode=4 # sys_prio=$(( 1 + RANDOM + RANDOM )) # echo $sys_prio > /sys/class/net/bond0/bonding/ad_actor_sys_prio # echo +eth1 > /sys/class/net/bond0/bonding/slaves ... # ip link set bond0 up Signed-off-by: Mahesh Bandewar <maheshb@google.com> Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com> [jt: * fixed up style issues reported by checkpatch * changed how the default value is set in bond_check_params(), this makes the default consistent between what gets set for a new bond and what the default is claimed to be in the bonding options.] Signed-off-by: Jonathan Toppins <jtoppins@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/bonding: Make DRV macros privateMatan Barak2015-04-261-0/+1
| | | | | | | | | | | | | | | | The bonding modules currently defines four macros with general names that pollute the global namespace: DRV_VERSION DRV_RELDATE DRV_NAME DRV_DESCRIPTION Fixing that by defining a private bonding_priv.h header files which includes those defines. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Implement port churn-machine (AD standard 43.4.17).Mahesh Bandewar2015-02-241-5/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Churn Detection machines detect the situation where a port is operable, but the Actor and Partner have not attached the link to an Aggregator and brought the link into operation within a bound time period. Under normal operation of the LACP, agreement between Actor and Partner should be reached very rapidly. Continued failure to reach agreement can be symptomatic of device failure. Actor-churn-detection state-machine Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com> =================================== BEGIN=True + PortEnable=False | v +------------------------+ ActorPort.Sync=True +------------------+ | ACTOR_CHURN_MONITOR | ---------------------> | NO_ACTOR_CHURN | |========================| |==================| | ActorChurn=False | ActorPort.Sync=False | ActorChurn=False | | ActorChurn.Timer=Start | <--------------------- | | +------------------------+ +------------------+ | ^ | | ActorChurn.Timer=Expired | | ActorPort.Sync=True | | | +-----------------+ | | | ACTOR_CHURN | | | |=================| | +--------------> | ActorChurn=True | ------------+ | | +-----------------+ Similar for the Partner-churn-detection. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Move bonding headers under include/netDavid S. Miller2014-11-101-1/+1
| | | | | | | This ways drivers like cxgb4 don't need to do ugly relative includes. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: display xmit_hash_policy for non-dynamic-tlb modeMahesh Bandewar2014-10-061-2/+1
| | | | | | | | | | It's a trivial fix to display xmit_hash_policy for this new TLB mode since it uses transmit-hash-poilicy as part of bonding-master info (/proc/net/bonding/<bonding-interface). Signed-off-by: Mahesh Bandewar <maheshb@google.com> Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: procfs: clean bond->lock usage and use RCUNikolay Aleksandrov2014-09-091-13/+3
| | | | | | | | | | Use RCU to protect against slave release, the proc show function will sync with the bond destruction by the proc locks and the fact that the bond is released after NETDEV_UNREGISTER which causes the bonding to remove the proc entry. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert primary_slave to use RCUNikolay Aleksandrov2014-09-091-4/+4
| | | | | | | | This is necessary mainly for two bonding call sites: procfs and sysfs as it was dereferenced without any real protection. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert bond_procfs.c to use netdev_printk instead of pr_Veaceslav Falico2014-07-151-2/+2
| | | | | | | CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: create a macro for bond mode and use itVeaceslav Falico2014-05-161-6/+6
| | | | | | | CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: make USES_PRIMARY inline functionsVeaceslav Falico2014-05-161-1/+1
| | | | | | | | | | | Change the name a bit to better reflect its scope, and update some comments. Two functions added - one which takes bond as a param and the other which takes the mode. CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: alloc the structure ad_info dynamically in per slavedingtianhong2014-05-141-1/+1
| | | | | | | | | | | | | The struct ad_slave_info is very huge, and only be used for 802.3ad mode, so alloc the structure dynamically could save 356 Bits for every slave in non 802.3ad mode. Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Acked-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: fix const in options processingstephen hemminger2014-03-061-1/+1
| | | | | | | | This is a fixup patch to resolve issues with const from my earlier patch. Make all the setter functions use const on input parameter. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: use rcu_dereference() to access curr_active_slavedingtianhong2014-02-241-3/+1
| | | | | | | | | | | | | The bond_info_show_master already in RCU read-side critical section, and the we access curr_active_slave without the curr_slave_lock, we could not sure whether the curr_active_slave will be changed during the processing, so use RCU to protected the pointer. Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Veaceslav Falico <vfalico@redhat.com> Cc: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Neaten pr_<level>Joe Perches2014-02-171-1/+1
| | | | | | | | | | | Add missing terminating newlines. Convert uses of pr_info to pr_cont in bond_check_params. Standardize upper/lower case styles. Typo fixes, remove unnecessary parentheses and periods. Alignment neatening. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Convert pr_warning to pr_warn, neateningJoe Perches2014-02-171-4/+4
| | | | | | | | | Use more current logging style. Coalesce formats, realign arguments, drop unnecessary periods. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert primary_reselect to use the new option APINikolay Aleksandrov2014-01-221-2/+5
| | | | | | | | This patch adds the necessary changes so primary_reselect would use the new bonding option API. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert ad_select to use the new option APINikolay Aleksandrov2014-01-221-1/+3
| | | | | | | | This patch adds the necessary changes so ad_select would use the new bonding option API. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert fail_over_mac to use the new option APINikolay Aleksandrov2014-01-221-3/+5
| | | | | | | | | This patch adds the necessary changes so fail_over_mac would use the new bonding option API. Also fixes a trivial copy/paste error in bond_check_params where the wrong variable was used for the error msg. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert xmit_hash_policy to use the new option APINikolay Aleksandrov2014-01-221-2/+4
| | | | | | | | This patch adds the necessary changes so xmit_hash_policy would use the new bonding option API. Also fix some trivial/style errors. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: add sysfs /slave dir for bond slave devices.sfeldma@cumulusnetworks.com2014-01-171-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Add sub-directory under /sys/class/net/<interface>/slave with read-only attributes for slave. Directory only appears when <interface> is a slave. $ tree /sys/class/net/eth2/slave/ /sys/class/net/eth2/slave/ ├── ad_aggregator_id ├── link_failure_count ├── mii_status ├── perm_hwaddr ├── queue_id └── state $ cat /sys/class/net/eth2/slave/* 2 0 up 40:02:10:ef:06:01 0 active Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: don't use bond_next_slave() in bond_info_seq_next()Veaceslav Falico2013-09-281-4/+12
| | | | | | | | | | We don't need the circular loop there and it's the only current user of bond_next_slave() - so just use the standard bond_for_each_slave(). CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: make bond_for_each_slave() use lower neighbour's privateVeaceslav Falico2013-09-261-2/+3
| | | | | | | | | | | It needs a list_head *iter, so add it wherever needed. Use both non-rcu and rcu variants. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert to list API and replace bond's custom listnikolay@redhat.com2013-08-011-6/+6
| | | | | | | | | | | | | | | This patch aims to remove struct bonding's first_slave and struct slave's next and prev pointers, and replace them with the standard Linux list API. The old macros are converted to list API as well and some new primitives are available now. The checks if there're slaves that used slave_cnt have been replaced by the list_empty macro. Also a few small style fixes, changing longest -> shortest line in local variable declarations, leaving an empty line before return and removing unnecessary brackets. This is the first step to gradual RCU conversion. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: fix multiple 3ad mode sysfs race conditionsnikolay@redhat.com2013-05-191-1/+1
| | | | | | | | | | | | When bond_3ad_get_active_agg_info() is used in all show_ad_ functions it is not protected against slave manipulation and since it walks over the slaves and uses them, this can easily result in NULL pointer dereference or use of freed memory. Both the new wrapper and the internal function are exported to the bonding as they're needed in different places. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* procfs: new helper - PDE_DATA(inode)Al Viro2013-04-091-3/+1
| | | | | | | | | | The only part of proc_dir_entry the code outside of fs/proc really cares about is PDE(inode)->data. Provide a helper for that; static inline for now, eventually will be moved to fs/proc, along with the knowledge of struct proc_dir_entry layout. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* bonding: show all the link status of slavesAmerigo Wang2012-06-171-2/+13
| | | | | | | | | | | | | | | There are four link statuses of a bonding slave, the procfs code shows a wrong status when using downdelay/updelay: (slave->link == BOND_LINK_UP) ? "up" : "down" It doesn't respect the rest two statuses. This patch fixes it. Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2011-11-071-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits) forcedeth: fix a few sparse warnings (variable shadowing) forcedeth: Improve stats counters forcedeth: remove unneeded stats updates forcedeth: Acknowledge only interrupts that are being processed forcedeth: fix race when unloading module MAINTAINERS/rds: update maintainer wanrouter: Remove kernel_lock annotations usbnet: fix oops in usbnet_start_xmit ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined etherh: Add MAINTAINERS entry for etherh bonding: comparing a u8 with -1 is always false sky2: fix regression on Yukon Optima netlink: clarify attribute length check documentation netlink: validate NLA_MSECS length i825xx:xscale:8390:freescale: Fix Kconfig dependancies macvlan: receive multicast with local address tg3: Update version to 3.121 tg3: Eliminate timer race with reset_task tg3: Schedule at most one tg3_reset_task run tg3: Obtain PCI function number from device ...
| * bonding: comparing a u8 with -1 is always falseDan Carpenter2011-11-041-2/+2
| | | | | | | | | | | | | | | | slave->duplex is a u8 type so the in bond_info_show_slave() when we check "if (slave->duplex == -1)", it's always false. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds2011-11-061-0/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
| * drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These were getting the macros from an implicit module.h include via device.h, but we are planning to clean that up. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c This relatively recently added file uses EXPORT_SYMBOL and hence needs export.h included so that it is compatible with the module.h split up work. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | bonding:update speed/duplex for NETDEV_CHANGEWeiping Pan2011-11-011-2/+10
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Zheng Liang(lzheng@redhat.com) found a bug that if we config bonding with arp monitor, sometimes bonding driver cannot get the speed and duplex from its slaves, it will assume them to be 100Mb/sec and Full, please see /proc/net/bonding/bond0. But there is no such problem when uses miimon. (Take igb for example) I find that the reason is that after dev_open() in bond_enslave(), bond_update_speed_duplex() will call igb_get_settings() , but in that function, it runs ethtool_cmd_speed_set(ecmd, -1); ecmd->duplex = -1; because igb get an error value of status. So even dev_open() is called, but the device is not really ready to get its settings. Maybe it is safe for us to call igb_get_settings() only after this message shows up, that is "igb: p4p1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX". So I prefer to update the speed and duplex for a slave when reseices NETDEV_CHANGE/NETDEV_UP event. Changelog V2: 1 remove the "fake 100/Full" logic in bond_update_speed_duplex(), set speed and duplex to -1 when it gets error value of speed and duplex. 2 delete the warning in bond_enslave() if bond_update_speed_duplex() returns error. 3 make bond_info_show_slave() handle bad values of speed and duplex. Signed-off-by: Weiping Pan <wpan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: add min links parameter to 802.3adstephen hemminger2011-06-231-0/+1
| | | | | | | | | | | | | | | | | | This adds support for a configuring the minimum number of links that must be active before asserting carrier. It is similar to the Cisco EtherChannel min-links feature. This allows setting the minimum number of member ports that must be up (link-up state) before marking the bond device as up (carrier on). This is useful for situations where higher level services such as clustering want to ensure a minimum number of low bandwidth links are active before switchover. See: http://bugzilla.vyatta.com/show_bug.cgi?id=7196 Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-bonding: Fix minor sparse complaintsDavid Decotigny2011-04-141-2/+0
| | | | | | | | | This gets rid of minor sparse complaints: drivers/net/bonding/bond_main.c:4361:4: warning: do-while statement is not a compound statement drivers/net/bonding/bond_main.c:243:12: warning: symbol 'bond_mode_name' was not declared. Should it be static? Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: move procfs code into bond_procfs.cAmerigo Wang2011-03-091-0/+275
V2: Move #ifdef CONFIG_PROC_FS into bonding.h, as suggested by David. bond_main.c is bloating, separate the procfs code out, move them to bond_procfs.c Signed-off-by: WANG Cong <amwang@redhat.com> Reviewed-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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