- 26 Oct, 2012 20 commits
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Daniel Wagner authored
The cgroup logic part of net_cls is very similar as the one in net_prio. Let's stream line the net_cls logic with the net_prio one. The net_prio update logic was changed by following commit (note there were some changes necessary later on) commit 406a3c63 Author: John Fastabend <john.r.fastabend@intel.com> Date: Fri Jul 20 10:39:25 2012 +0000 net: netprio_cgroup: rework update socket logic Instead of updating the sk_cgrp_prioidx struct field on every send this only updates the field when a task is moved via cgroup infrastructure. This allows sockets that may be used by a kernel worker thread to be managed. For example in the iscsi case today a user can put iscsid in a netprio cgroup and control traffic will be sent with the correct sk_cgrp_prioidx value set but as soon as data is sent the kernel worker thread isssues a send and sk_cgrp_prioidx is updated with the kernel worker threads value which is the default case. It seems more correct to only update the field when the user explicitly sets it via control group infrastructure. This allows the users to manage sockets that may be used with other threads. Since classid is now updated when the task is moved between the cgroups, we don't have to call sock_update_classid() from various places to ensure we always using the latest classid value. [v2: Use iterate_fd() instead of open coding] Signed-off-by:
Daniel Wagner <daniel.wagner@bmw-carit.de> Cc: Li Zefan <lizefan@huawei.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Joe Perches <joe@perches.com> Cc: John Fastabend <john.r.fastabend@intel.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Cc: Tejun Heo <tj@kernel.org> Cc: <netdev@vger.kernel.org> Cc: <cgroups@vger.kernel.org> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Daniel Wagner authored
sock_update_classid() assumes that the update operation always are applied on the current task. sock_update_classid() needs to know on which tasks to work on in order to be able to migrate task between cgroups using the struct cgroup_subsys attach() callback. Signed-off-by:
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Daniel Wagner authored
As Eric pointed out: "Hey task_cls_classid() has its own rcu protection since commit 3fb5a991 (cls_cgroup: Fix rcu lockdep warning) So we can safely revert Paul commit (1144182a) (We no longer need rcu_read_lock/unlock here)" Signed-off-by:
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Daniel Wagner authored
The classid type used throughout the kernel is u32. Signed-off-by:
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Daniel Wagner authored
net_prio_attach() is only access via cgroup_subsys callbacks, therefore we can reduce the visibility of this function. Signed-off-by:
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Ming Lei authored
Acked-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
Ming Lei <ming.lei@canonical.com> Signed-off-by:
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
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Ming Lei authored
This patch introduces the below 3 usb command helpers: usbnet_read_cmd / usbnet_write_cmd / usbnet_write_cmd_async so that each low level driver doesn't need to implement them by itself, and the dma buffer allocation for usb transfer and runtime PM things can be handled just in one place. Acked-by:
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Neil Horman authored
I've been messing with the code for a bit, and I figured Vlad could use a hand as interest in the protocol has picked up over the last year or so. I've asked him, and he doesn't seem too upset over the idea :) Signed-off-by:
Vlad Yasevich <vyasevich@gmail.com> Signed-off-by:
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Neil Horman authored
Currently sctp allows for the optional use of md5 of sha1 hmac algorithms to generate cookie values when establishing new connections via two build time config options. Theres no real reason to make this a static selection. We can add a sysctl that allows for the dynamic selection of these algorithms at run time, with the default value determined by the corresponding crypto library availability. This comes in handy when, for example running a system in FIPS mode, where use of md5 is disallowed, but SHA1 is permitted. Note: This new sysctl has no corresponding socket option to select the cookie hmac algorithm. I chose not to implement that intentionally, as RFC 6458 contains no option for this value, and I opted not to pollute the socket option namespace. Change notes: v2) * Updated subject to have the proper sctp prefix as per Dave M. * Replaced deafult selection options with new options that allow developers to explicitly select available hmac algs at build time as per suggestion by Vlad Y. Signed-off-by:
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Daniel Borkmann authored
This tiny patch removes two unused err assignments. In those two cases the err variable is either overwritten with another value at a later point in time without having read the previous assigment, or it is assigned and the function returns without using/reading err after the assignment. Signed-off-by:
Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by:
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hayeswang authored
Enable ALDPS function to save power when link down. Note that the feature should be set after the other PHY settings. And the firmware is necessary. Don't enable it without loading the firmware. None of the firmware-free chipsets support ALDPS. Neither do the RTL8168d/8111d. For 8136 series, make sure the ALDPS is disabled before loading the firmware. For 8168 series, the ALDPS would be disabled automatically when loading firmware. You must not disable it directly. Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Acked-by:
Francois Romieu <romieu@fr.zoreil.com> Signed-off-by:
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- 23 Oct, 2012 20 commits
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Pavel Emelyanov authored
Make it simple -- just put new nlattr with just sk->sk_shutdown bits. Signed-off-by:
Pavel Emelyanov <xemul@parallels.com> Signed-off-by:
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Nicolas Dichtel authored
Adding by commit 51ebd318 which adds the support of ECMP for IPv6. Spotted-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
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Padmanabh Ratnakar authored
FW flashing code, even though it works correctly, makes some hidden assumptions about buffer sizes. This is causing code analysers to report error. Cleanup FW flashing code to remove these hidden assumptions. Reported-by:
Yuanhan Liu <yuanhan.liu@intel.com> Signed-off-by:
Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by:
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Hans Zhang authored
It's no needed to check the return value of tab since the NULL situation has been handled already, and the rtnl_msg_handlers[PF_UNSPEC] has been initialized as non-NULL during the rtnetlink_init(). Signed-off-by:
Hans Zhang <zhanghonghui@huawei.com> Signed-off-by:
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Eric Dumazet authored
Use same header helpers than tcp_v6_early_demux() because they are a bit faster, and as they make IPv4/IPv6 versions look the same. Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Neal Cardwell authored
Remove an icsk variable, which by convention should refer to an inet_connection_sock rather than an inet_sock. In the process, make the tcp_v6_early_demux() code and formatting a bit more like tcp_v4_early_demux(), to ease comparisons and maintenance. Signed-off-by:
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Greg Rose authored
Signed-off-by:
Greg Rose <gregory.v.rose@intel.com> Tested-by:
Sibai Li <sibai.li@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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John Fastabend authored
The lockdep splat below identifies a case where irq safe to unsafe lock order is detected. Resolved by making mbx_lock bh. ====================================================== [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] 3.6.0-rc5jk-net-next+ #119 Not tainted ------------------------------------------------------ ip/2608 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: (&(&adapter->mbx_lock)->rlock){+.+...}, at: [<ffffffffa008114e>] ixgbevf_set_rx_mode+0x36/0xd2 [ixgbevf] and this task is already holding: (_xmit_ETHER){+.....}, at: [<ffffffff814097c8>] dev_set_rx_mode+0x1e/0x33 which would create a new lock dependency: (_xmit_ETHER){+.....} -> (&(&adapter->mbx_lock)->rlock){+.+...} but this new dependency connects a SOFTIRQ-irq-safe lock: (&(&mc->mca_lock)->rlock){+.-...} ... which became SOFTIRQ-irq-safe at: [<ffffffff81092ee5>] __lock_acquire+0x2f2/0xdf3 [<ffffffff81093b11>] lock_acquire+0x12b/0x158 [<ffffffff814bdbcd>] _raw_spin_lock_bh+0x4a/0x7d [<ffffffffa011a740>] mld_ifc_timer_expire+0x1b2/0x282 [ipv6] [<ffffffff81054580>] run_timer_softirq+0x2a2/0x3ee [<ffffffff8104cc42>] __do_softirq+0x161/0x2b9 [<ffffffff814c6a7c>] call_softirq+0x1c/0x30 [<ffffffff81011bc7>] do_softirq+0x4b/0xa3 [<ffffffff8104c8d5>] irq_exit+0x53/0xd7 [<ffffffff814c734d>] do_IRQ+0x9d/0xb4 [<ffffffff814be56f>] ret_from_intr+0x0/0x1a [<ffffffff813de21c>] cpuidle_enter+0x12/0x14 [<ffffffff813de235>] cpuidle_enter_state+0x17/0x3f [<ffffffff813deb6c>] cpuidle_idle_call+0x140/0x21c [<ffffffff8101764c>] cpu_idle+0x79/0xcd [<ffffffff814a59f5>] rest_init+0x149/0x150 [<ffffffff81ca2cbc>] start_kernel+0x37c/0x389 [<ffffffff81ca22dd>] x86_64_start_reservations+0xb8/0xbd [<ffffffff81ca23e3>] x86_64_start_kernel+0x101/0x110 to a SOFTIRQ-irq-unsafe lock: (&(&adapter->mbx_lock)->rlock){+.+...} ... which became SOFTIRQ-irq-unsafe at: ... [<ffffffff81092f59>] __lock_acquire+0x366/0xdf3 [<ffffffff81093b11>] lock_acquire+0x12b/0x158 [<ffffffff814bd862>] _raw_spin_lock+0x45/0x7a [<ffffffffa0080fde>] ixgbevf_negotiate_api+0x3d/0x6d [ixgbevf] [<ffffffffa008404b>] ixgbevf_open+0x6c/0x43e [ixgbevf] [<ffffffff8140b2c1>] __dev_open+0xa0/0xe6 [<ffffffff814099b6>] __dev_change_flags+0xbe/0x142 [<ffffffff8140b1eb>] dev_change_flags+0x21/0x57 [<ffffffff8141a523>] do_setlink+0x2e2/0x7f4 [<ffffffff8141ad8c>] rtnl_newlink+0x277/0x4bb [<ffffffff81419c08>] rtnetlink_rcv_msg+0x236/0x253 [<ffffffff8142f92d>] netlink_rcv_skb+0x43/0x94 [<ffffffff814199cb>] rtnetlink_rcv+0x26/0x2d [<ffffffff8142f6dc>] netlink_unicast+0xee/0x174 [<ffffffff8142ff12>] netlink_sendmsg+0x26a/0x288 [<ffffffff813f5a0d>] __sock_sendmsg_nosec+0x58/0x61 [<ffffffff813f7d57>] __sock_sendmsg+0x3d/0x48 [<ffffffff813f7ed9>] sock_sendmsg+0x6e/0x87 [<ffffffff813f93d4>] __sys_sendmsg+0x206/0x288 [<ffffffff813f95ce>] sys_sendmsg+0x42/0x60 [<ffffffff814c57a9>] system_call_fastpath+0x16/0x1b other info that might help us debug this: Chain exists of: &(&mc->mca_lock)->rlock --> _xmit_ETHER --> &(&adapter->mbx_lock)->rlock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&adapter->mbx_lock)->rlock); local_irq_disable(); lock(&(&mc->mca_lock)->rlock); lock(_xmit_ETHER); <Interrupt> lock(&(&mc->mca_lock)->rlock); *** DEADLOCK *** Signed-off-by:John Fastabend <john.r.fastabend@intel.com> Acked-by:
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Greg Rose authored
Ignoring the return value from a call to the kernel dma_map API functions can cause data corruption and system instability. Check the return value and take appropriate action. Signed-off-by:
Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by:
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John Fastabend authored
ixgbevf_alloc_q_vectors() calls netif_napi_add for each qvector where qvectors is determined by the number of msix vectors. This makes perfect sense. However on cleanup when ixgbevf_free_q_vectors() is called and for each qvector we should call netif_napi_del there is some extra logic to add a dependency on RX queues. This patch makes the add/del operations symmetric by removing the RX queues dependency. Without this if free_netdev() is called we see the general protection fault below in netif_napi_del when list_del_init() is called. # addr2line -e ./vmlinux ffffffff8140810c net-next/include/linux/list.h:88 general protection fault: 0000 [#1] SMP Modules linked in: bonding ixgbevf ixgbe(-) mdio libfc scsi_transport_fc scsi_tgt 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf ipv6 uinput coretemp lpc_ich i2c_i801 shpchp hwmon i2c_core serio_raw crc32c_intel mfd_core joydev pcspkr microcode ioatdma igb dca pata_acpi ata_generic usb_storage pata_jmicron [last unloaded: bonding] CPU 10 Pid: 4174, comm: rmmod Tainted: G W 3.6.0-rc3jk-net-next+ #104 Supermicro X8DTN/X8DTN RIP: 0010:[<ffffffff8140810c>] [<ffffffff8140810c>] netif_napi_del+0x24/0x87 RSP: 0018:ffff88027f5e9b48 EFLAGS: 00010293 RAX: ffff8806224b4768 RBX: ffff8806224b46e8 RCX: 6b6b6b6b6b6b6b6b RDX: 6b6b6b6b6b6b6b6b RSI: ffffffff810bf6c5 RDI: ffff8806224b46e8 RBP: ffff88027f5e9b58 R08: ffff88033200b180 R09: ffff88027f5e98a8 R10: ffff88033320b000 R11: ffff88027f5e9ae8 R12: 6b6b6b6b6b6b6aeb R13: ffff8806221d11c0 R14: 0000000000000000 R15: ffff88027f5e9cf8 FS: 00007f5e58b9b700(0000) GS:ffff880333200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00000000010ef2b8 CR3: 0000000281fff000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process rmmod (pid: 4174, threadinfo ffff88027f5e8000, task ffff88032f888000) Stack: ffff8806221d1160 6b6b6b6b6b6b6aeb ffff88027f5e9b88 ffffffff81408e46 ffff8806221d1160 ffff8806221d1160 ffff8806221d1ae0 ffff8806221d5668 ffff88027f5e9bb8 ffffffffa009153c ffffffffa0092a30 ffff8806221d5700 Call Trace: [<ffffffff81408e46>] free_netdev+0x64/0xd7 [<ffffffffa009153c>] ixgbevf_remove+0xa6/0xbc [ixgbevf] [<ffffffff8127a7a1>] pci_device_remove+0x2d/0x51 [<ffffffff8131f503>] __device_release_driver+0x6c/0xc2 [<ffffffff8131f640>] device_release_driver+0x25/0x32 [<ffffffff8131e821>] bus_remove_device+0x148/0x15d [<ffffffff8131cb6b>] device_del+0x130/0x1a4 [<ffffffff8131cc2a>] device_unregister+0x4b/0x57 [<ffffffff81275c27>] pci_stop_bus_device+0x63/0x85 [...] Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Tested-by:
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Carolyn Wyborny authored
This patch updates the igb driver version to 4.0.17. Signed-off-by:
Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by:
Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:
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Carolyn Wyborny authored
There was a problem in the initial implementation of the get cable length function for i210 and it did not work properly. This patch fixes that problem for i210/i211 devices. Signed-off-by:
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Jesse Brandeburg authored
Add an official link which is designed to guide the user to the appropriate support resource (be it community, OEM, Intel phone, Intel email, etc) Add the current e1000 maintainer to the list of Intel maintainers. Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by:
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Tushar Dave authored
This is a HW requirement. Although a buffer as short as 1 byte is allowed, the total length of packet before, padding and CRC insertion, must be at least 17 bytes. So pad all small packets manually up to 17 bytes before delivering them to HW. Signed-off-by:
Tushar Dave <tushar.n.dave@intel.com> Tested-by:
Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== This series contains updates to ixgbe only. Only change to this series is I dropped the "ixgbe: Add support for pipeline reset" due to change requested by Martin Josefsson. Alexander Duyck (7): ixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen ixgbe: Add support for tracking the default user priority to SR-IOV ixgbe: Add support for GET_QUEUES message to get DCB configuration ixgbe: Enable support for VF API version 1.1 in the PF. ixgbevf: Add VF DCB + SR-IOV support ixgbe: Drop unnecessary addition from ixgbe_set_rx_buffer_len ixgbe: Fix possible memory leak in ixgbe_set_ringparam Don Skidmore (1): ixgbe: Add function ixgbe_reset_pipeline_82599 Emil Tantilov (1): ixgbe: add WOL support for new subdevice id Jacob Keller (1): ixgbe: (PTP) refactor init, cyclecounter and reset Tushar Dave (1): ixgbe: Correcting small packet padding Wei Yongjun (1): ixgbe: using is_zero_ether_addr() to simplify the code ==================== Signed-off-by: -
Bjørn Mork authored
MBIM devices can support up to 256 generic streams called Device Service Streams (DSS). The MBIM spec says The format of the Device Service Stream payload depends on the device service (as identified by the corresponding UUID) that is used when opening the data stream. Example use cases are serial AT command interfaces and NMEA data streams. We cannot make any assumptions about these device services. Adding support for Device Service Stream by extending the MBIM session to VLAN mapping scheme, allocating VLAN IDs 256 to 511 for DSS, using the DSS SessionID as the lower 8bit of the VLAN ID. Using a netdev for DSS keeps the device framing intact and allows userspace to do whatever it want with the streams. For example, exporting an AT command interface using DSS session #0 to a PTY for use with a terminal application like minicom: vconfig add wwan0 256 ip link set dev wwan0 up ip link set dev wwan0.256 up socat INTERFACE:wwan0.256,type=2 PTY:,echo=0,link=/tmp/modem Device configuration must be done using MBIM control commands over the /dev/cdc-wdmx device. The userspace management application should coordinate host VLAN configuration and the device MBIM configuration using the device capabilities to find out if it needs to set up PTY mappings etc. Signed-off-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
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Bjørn Mork authored
MBIM devices can support up to 256 independent IP Streams. The main network device will only handle SessionID 0. Mapping SessionIDs 1 to 255 to VLANs using the SessionID as VLAN ID allow userspace to use these streams with traditional tools like vconfig. Signed-off-by:
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Bjørn Mork authored
The MBIM specification allows a MBIM device to disguise itself as NCM for backwards compatibility, using additional altsettings with different subclass (control) or protocol (data): C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0d Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=7ms I:* If#= 0 Alt= 1 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=7ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_mbim I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_mbim E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 2 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms If the MBIM driver is enabled then that should have priority for devices providing such a NCM 1.0 backward compatibility mode. Signed-off-by:
Greg Suarez <gsuarez@smithmicro.com> Signed-off-by:
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Bjørn Mork authored
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