platform/kernel/linux-3.10.git
12 years agocgroup: net_prio: Mark local used function static
Daniel Wagner [Thu, 25 Oct 2012 04:16:55 +0000 (04:16 +0000)]
cgroup: net_prio: Mark local used function static

net_prio_attach() is only access via cgroup_subsys callbacks,
therefore we can reduce the visibility of this function.

Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Neil Horman <nhorman@tuxdriver.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>
12 years agousbnet: smsc95xx: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:47:04 +0000 (19:47 +0000)]
usbnet: smsc95xx: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: smsc75xx: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:47:03 +0000 (19:47 +0000)]
usbnet: smsc75xx: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: sierra_net: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:47:02 +0000 (19:47 +0000)]
usbnet: sierra_net: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: plusb: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:47:01 +0000 (19:47 +0000)]
usbnet: plusb: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: net1080: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:47:00 +0000 (19:47 +0000)]
usbnet: net1080: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: mcs7830: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:46:59 +0000 (19:46 +0000)]
usbnet: mcs7830: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: int51x1: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:46:58 +0000 (19:46 +0000)]
usbnet: int51x1: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: dm9601: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:46:57 +0000 (19:46 +0000)]
usbnet: dm9601: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: cdc-ncm: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:46:56 +0000 (19:46 +0000)]
usbnet: cdc-ncm: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: asix: apply introduced usb command APIs
Ming Lei [Wed, 24 Oct 2012 19:46:55 +0000 (19:46 +0000)]
usbnet: asix: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: introduce usbnet 3 command helpers
Ming Lei [Wed, 24 Oct 2012 19:46:54 +0000 (19:46 +0000)]
usbnet: introduce usbnet 3 command helpers

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: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMAINTAINERS: Add myself to list of SCTP maintainers
Neil Horman [Wed, 24 Oct 2012 09:26:51 +0000 (09:26 +0000)]
MAINTAINERS: Add myself to list of SCTP maintainers

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: Neil Horman <nhorman@tuxdriver.com>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: linux-sctp@vger.kernel.org
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosctp: Make hmac algorithm selection for cookie generation dynamic
Neil Horman [Wed, 24 Oct 2012 09:20:03 +0000 (09:20 +0000)]
sctp: Make hmac algorithm selection for cookie generation dynamic

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: Neil Horman <nhorman@tuxdriver.com>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: netdev@vger.kernel.org
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agopacket: minor: remove unused err assignment
Daniel Borkmann [Wed, 24 Oct 2012 13:27:24 +0000 (15:27 +0200)]
packet: minor: remove unused err assignment

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: David S. Miller <davem@davemloft.net>
12 years agor8169: enable ALDPS for power saving
hayeswang [Tue, 23 Oct 2012 20:24:03 +0000 (20:24 +0000)]
r8169: enable ALDPS for power saving

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: David S. Miller <davem@davemloft.net>
12 years agosock-diag: Report shutdown for inet and unix sockets (v2)
Pavel Emelyanov [Tue, 23 Oct 2012 18:29:56 +0000 (22:29 +0400)]
sock-diag: Report shutdown for inet and unix sockets (v2)

Make it simple -- just put new nlattr with just sk->sk_shutdown bits.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Tue, 23 Oct 2012 17:26:30 +0000 (13:26 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

12 years agoipv6: fix sparse warnings in rt6_info_hash_nhsfn()
Nicolas Dichtel [Mon, 22 Oct 2012 23:35:06 +0000 (23:35 +0000)]
ipv6: fix sparse warnings in rt6_info_hash_nhsfn()

Adding by commit 51ebd3181572 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: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix smatch warnings in be_main.c
Padmanabh Ratnakar [Mon, 22 Oct 2012 23:02:44 +0000 (23:02 +0000)]
be2net: Fix smatch warnings in be_main.c

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: David S. Miller <davem@davemloft.net>
12 years agonetlink: cleanup the unnecessary return value check
Hans Zhang [Mon, 22 Oct 2012 22:21:23 +0000 (22:21 +0000)]
netlink: cleanup the unnecessary return value check

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: David S. Miller <davem@davemloft.net>
12 years agoipv4: tcp: clean up tcp_v4_early_demux()
Eric Dumazet [Mon, 22 Oct 2012 21:42:47 +0000 (21:42 +0000)]
ipv4: tcp: clean up tcp_v4_early_demux()

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: David S. Miller <davem@davemloft.net>
12 years agoipv6: tcp: clean up tcp_v6_early_demux() icsk variable
Neal Cardwell [Mon, 22 Oct 2012 21:41:48 +0000 (21:41 +0000)]
ipv6: tcp: clean up tcp_v6_early_demux() icsk variable

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: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoixgbevf: Update version string
Greg Rose [Thu, 4 Oct 2012 02:10:53 +0000 (02:10 +0000)]
ixgbevf: Update version string

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>
12 years agoixgbevf: fix softirq-safe to unsafe splat on internal mbx_lock
John Fastabend [Mon, 1 Oct 2012 14:52:20 +0000 (14:52 +0000)]
ixgbevf: fix softirq-safe to unsafe splat on internal mbx_lock

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: 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>
12 years agoixgbevf: Check for error on dma_map_single call
Greg Rose [Fri, 21 Sep 2012 00:14:14 +0000 (00:14 +0000)]
ixgbevf: Check for error on dma_map_single call

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: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbevf: make netif_napi_add and netif_napi_del symmetric
John Fastabend [Sun, 16 Sep 2012 08:19:46 +0000 (08:19 +0000)]
ixgbevf: make netif_napi_add and netif_napi_del symmetric

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: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoigb: Update version
Carolyn Wyborny [Wed, 17 Oct 2012 07:01:56 +0000 (07:01 +0000)]
igb: Update version

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: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoigb: Update get cable length function for i210/i211
Carolyn Wyborny [Wed, 10 Oct 2012 04:42:59 +0000 (04:42 +0000)]
igb: Update get cable length function for i210/i211

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: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agomaintainers: update with official intel support link, new maintainer
Jesse Brandeburg [Tue, 9 Oct 2012 02:52:14 +0000 (02:52 +0000)]
maintainers: update with official intel support link, new maintainer

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: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoe1000e: Minimum packet size must be 17 bytes
Tushar Dave [Fri, 14 Sep 2012 02:21:37 +0000 (02:21 +0000)]
e1000e: Minimum packet size must be 17 bytes

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: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Tue, 23 Oct 2012 06:51:00 +0000 (02:51 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

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: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_mbim: Device Service Stream support
Bjørn Mork [Mon, 22 Oct 2012 10:56:40 +0000 (10:56 +0000)]
net: cdc_mbim: Device Service Stream support

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: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: map MBIM IPS SessionID to VLAN ID
Bjørn Mork [Mon, 22 Oct 2012 10:56:39 +0000 (10:56 +0000)]
net: cdc_ncm: map MBIM IPS SessionID to VLAN ID

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: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: do not bind to NCM compatible MBIM devices
Bjørn Mork [Mon, 22 Oct 2012 10:56:38 +0000 (10:56 +0000)]
net: cdc_ncm: do not bind to NCM compatible MBIM devices

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: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Suarez <gsuarez@smithmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_mbim: build the MBIM driver
Bjørn Mork [Mon, 22 Oct 2012 10:56:37 +0000 (10:56 +0000)]
net: cdc_mbim: build the MBIM driver

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_mbim: adding MBIM driver
Greg Suarez [Mon, 22 Oct 2012 10:56:36 +0000 (10:56 +0000)]
net: cdc_mbim: adding MBIM driver

The CDC Mobile Broadband Interface Model (MBIM) specification
extends CDC NCM by
 - removing the redundant ethernet header from the point-to-point
   USB channel
 - adding support for multiple IP (v4 and/or v6) sessions multiplexed
   on the same USB channel
 - adding a MBIM control channel encapsulated in CDC
 - adding Device Service Streams (DSS), which are non IP generic data
   streams multiplexed on the same USB channel as the IP sessions

MBIM devices are managed using the dedicated control channel, and no
data will flow on the data channel until a control session has been
established.  This driver has no knowledge of MBIM control messages.
It just exports the control channel to a /dev/cdc-wdmX character
device for userspace management applications. Such an application is
therefore required to use this driver.

This patch implements basic MBIM support, reusing the NCM and WDM driver
APIs, currently limited to IP sessions with SessionID 0. DSS and
multiplexed IP sessions are not yet supported.

Signed-off-by: Greg Suarez <gsuarez@smithmicro.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: export shared symbols and definitions
Bjørn Mork [Mon, 22 Oct 2012 10:56:35 +0000 (10:56 +0000)]
net: cdc_ncm: export shared symbols and definitions

Move symbols and definitons which can be shared with a
MBIM driver in a new header.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: refactoring for tx multiplexing
Bjørn Mork [Mon, 22 Oct 2012 10:56:34 +0000 (10:56 +0000)]
net: cdc_ncm: refactoring for tx multiplexing

Adding multiplexed NDP support to cdc_ncm_fill_tx_frame, allowing
transmissions of multiple independent sessions within the same NTB.

Refactoring the code quite a bit to avoid having to store copies
of multiple NDPs being prepared for tx. The old code would still
reserve enough room for a maximum sized NDP in the skb so we might
as well keep them in the skb while they are being prepared.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: splitting rx_fixup for code reuse
Bjørn Mork [Mon, 22 Oct 2012 10:56:33 +0000 (10:56 +0000)]
net: cdc_ncm: splitting rx_fixup for code reuse

Verifying and handling received MBIM and NCM frames will need
to be different in three areas:
 - verifying the NDP signature
 - checking valid datagram length
 - datagram header manipulation

This makes it inconvenient to share rx_fixup in whole.  But
some verification parts are common.  Split these out in separate
functions.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: process chained NDPs
Bjørn Mork [Mon, 22 Oct 2012 10:56:32 +0000 (10:56 +0000)]
net: cdc_ncm: process chained NDPs

The NCM 1.0 spefication makes provisions for linking more than
one NDP into a single NTB. This is important for MBIM support,
where these NDPs might be of different types.

Following the chain of NDPs is also correct for NCM, and will
not change anything in the common case where there is only
one NDP

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: refactor bind preparing for MBIM support
Greg Suarez [Mon, 22 Oct 2012 10:56:31 +0000 (10:56 +0000)]
net: cdc_ncm: refactor bind preparing for MBIM support

NCM and MBIM can share most of the bind function.  Split
out the shareable part and add MBIM functional descriptor
parsing.

Signed-off-by: Greg Suarez <gsuarez@smithmicro.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: adding MBIM support to ncm_setup
Greg Suarez [Mon, 22 Oct 2012 10:56:30 +0000 (10:56 +0000)]
net: cdc_ncm: adding MBIM support to ncm_setup

MBIM and NCM are very similar, so we can reuse most of the
setup and bind logic in cdc_ncm for CDC MBIM devices.  Handle
a few minor differences in ncm_setup.

Signed-off-by: Greg Suarez <gsuarez@smithmicro.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoUSB: cdc: add MBIM constants and structures
Greg Suarez [Mon, 22 Oct 2012 10:56:29 +0000 (10:56 +0000)]
USB: cdc: add MBIM constants and structures

Based on revision 1.0 of "Universal Serial Bus Communications
Class Subclass Specification for Mobile Broadband Interface
Model" available from www.usb.org

Signed-off-by: Greg Suarez <gsuarez@smithmicro.com>
[bmork: added DSS defines]
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: cdc_ncm: workaround NTB input size firmware bug
Bjørn Mork [Mon, 22 Oct 2012 10:56:28 +0000 (10:56 +0000)]
net: cdc_ncm: workaround NTB input size firmware bug

Some devices do not support the 8 byte variants of the NTB input
size control messages despite announcing such support in their
NCM or MBIM functional descriptor.

According to the NCM specification, all devices must support the
4 byte variant regardless of whether or not the flag is set:

  If bit D5 is set in the bmNetworkCapabilities field of
  function’s NCM Functional Descriptor, the host may
  set wLength either to 4 or to 8. If wLength is 4, the
  function shall assume that wNtbInMaxDatagrams is to be
  set to zero. If wLength is 8, then the function shall
  use the provided value as the limit. The function shall
  return an error response (a STALL PID) if wLength is set
  to any other value.

We do not set wNtbInMaxDatagrams in any case, so we can just as
well unconditionally use the 4 byte variant without losing any
functionality.  This works around the known firmware bug, and
simplifies the code considerably.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/at91_ether: add pdata flag for reverse Eth addr
Joachim Eastwood [Mon, 22 Oct 2012 08:45:34 +0000 (08:45 +0000)]
net/at91_ether: add pdata flag for reverse Eth addr

This will allow us to remove the last mach include from at91_ether
and also make it easier to share address setup with macb.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/at91_ether: select MACB in Kconfig
Joachim Eastwood [Mon, 22 Oct 2012 08:45:33 +0000 (08:45 +0000)]
net/at91_ether: select MACB in Kconfig

Now that HAVE_NET_MACB is gone let's just select MACB to
satisfy the dependecies in at91_ether.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/cadence: get rid of HAVE_NET_MACB
Joachim Eastwood [Mon, 22 Oct 2012 08:45:32 +0000 (08:45 +0000)]
net/cadence: get rid of HAVE_NET_MACB

macb is a platform driver and there is nothing that prevents
this driver from being built on non-ARM/AVR32 platforms.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/macb: fix truncate warnings
Joachim Eastwood [Mon, 22 Oct 2012 08:45:31 +0000 (08:45 +0000)]
net/macb: fix truncate warnings

When building macb on x86_64 the following warnings show up:
  drivers/net/ethernet/cadence/macb.c: In function macb_interrupt:
  drivers/net/ethernet/cadence/macb.c:556:4: warning: large integer implicitly truncated to unsigned type [-Woverflow]
  drivers/net/ethernet/cadence/macb.c: In function macb_reset_hw:
  drivers/net/ethernet/cadence/macb.c:792:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
  drivers/net/ethernet/cadence/macb.c:793:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
  drivers/net/ethernet/cadence/macb.c:796:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]

Use -1 insted of ~0UL, as done in other places in the driver,
to silence these warnings.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoipv6: add support of equal cost multipath (ECMP)
Nicolas Dichtel [Mon, 22 Oct 2012 03:42:09 +0000 (03:42 +0000)]
ipv6: add support of equal cost multipath (ECMP)

Each nexthop is added like a single route in the routing table. All routes
that have the same metric/weight and destination but not the same gateway
are considering as ECMP routes. They are linked together, through a list called
rt6i_siblings.

ECMP routes can be added in one shot, with RTA_MULTIPATH attribute or one after
the other (in both case, the flag NLM_F_EXCL should not be set).

The patch is based on a previous work from
Luc Saillard <luc.saillard@6wind.com>.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoixgbe: Fix possible memory leak in ixgbe_set_ringparam
Alexander Duyck [Wed, 12 Sep 2012 07:09:51 +0000 (07:09 +0000)]
ixgbe: Fix possible memory leak in ixgbe_set_ringparam

We were not correctly freeing the temporary rings on error in
ixgbe_set_ring_param.  In order to correct this I am unwinding a number of
changes that were made in order to get things back to the original working
form with modification for the current ring layouts.

This approach has multiple advantages including a smaller memory footprint,
and the fact that the interface is stopped while we are allocating the rings
meaning that there is less potential for some sort of memory corruption on the
ring.

The only disadvantage I see with this approach is that on a Rx allocation
failure we will report an error and only update the Tx rings.  However the
adapter should be fully functional in this state and the likelihood of such
an error is very low.  In addition it is not unreasonable to expect the
user to need to recheck the ring configuration should they experience an
error setting the ring sizes.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Add function ixgbe_reset_pipeline_82599
Don Skidmore [Tue, 11 Sep 2012 06:58:19 +0000 (06:58 +0000)]
ixgbe: Add function ixgbe_reset_pipeline_82599

This patch adds a function that forces a full pipeline reset.  This
function will be used in following patches to completely reset the PHY
during resets.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Drop unnecessary addition from ixgbe_set_rx_buffer_len
Alexander Duyck [Sat, 8 Sep 2012 03:17:01 +0000 (03:17 +0000)]
ixgbe: Drop unnecessary addition from ixgbe_set_rx_buffer_len

We still had some code floating around from the old single buffer receive
path.  As a result we were adding VLAN_HLEN to max_frame although the
resultant value was never used.  Since that is the case we can drop this from
the function.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Correcting small packet padding
Tushar Dave [Fri, 14 Sep 2012 04:24:49 +0000 (04:24 +0000)]
ixgbe: Correcting small packet padding

Driver pad skb up to 17 bytes because of the HW requirement. However, that code
implementation mess up the skb tail pointer after padding. This patch sets
skb->tail correctly.

Signed-off-by: Tushar Dave <tushar.n.dave@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: using is_zero_ether_addr() to simplify the code
Wei Yongjun [Sun, 26 Aug 2012 16:59:37 +0000 (16:59 +0000)]
ixgbe: using is_zero_ether_addr() to simplify the code

Using is_zero_ether_addr() to simplify the code.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: (PTP) refactor init, cyclecounter and reset
Jacob Keller [Sat, 25 Aug 2012 03:54:19 +0000 (03:54 +0000)]
ixgbe: (PTP) refactor init, cyclecounter and reset

This patch modifies when and where PTP registers and data are set. Previously
a work-around was used inside cyclecounter_start in order to reset some of the
time registers. This patch creates a new ixgbe_ptp_reset specifically for this
purpose. The cyclecounter configuration has trimmed down to only modify what
is necessary. Due to hardware conditions after probe and before open, PTP init
has now moved into the ixgbe_open call. This allows the ptp device name in the
sysfs to be the ethernet device name instead of the MAC address.

The cyclecounter check flag is renamed to PTP_ENABLED and is used to prevent
PTP init from happening when PTP has not been enabled.

CC: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: add WOL support for new subdevice id
Emil Tantilov [Thu, 16 Aug 2012 08:13:07 +0000 (08:13 +0000)]
ixgbe: add WOL support for new subdevice id

This patch adds a subdevice id for new 82599 device. The define is needed
to allow enabling WOL support.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbevf: Add VF DCB + SR-IOV support
Alexander Duyck [Fri, 20 Jul 2012 08:10:03 +0000 (08:10 +0000)]
ixgbevf: Add VF DCB + SR-IOV support

This change adds support for DCB and SR-IOV from the VF.  With this change
in place the VF will correctly use a traffic class other than 0 in the case
that the PF is configured with the default user priority belonging to a
traffic class other than 0.

Cc: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Enable support for VF API version 1.1 in the PF.
Alexander Duyck [Fri, 20 Jul 2012 08:09:37 +0000 (08:09 +0000)]
ixgbe: Enable support for VF API version 1.1 in the PF.

This change switches on the last few bits for us enabling version 1.1 VF
support in the PF.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Robert Garrett <RobertX.Garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Add support for GET_QUEUES message to get DCB configuration
Alexander Duyck [Fri, 20 Jul 2012 08:09:32 +0000 (08:09 +0000)]
ixgbe: Add support for GET_QUEUES message to get DCB configuration

This patch addresses several issues in regards to the combination of DCB
and SR-IOV. Specifically it allows us to send information to the VF on
which queues it should be using.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Add support for tracking the default user priority to SR-IOV
Alexander Duyck [Tue, 2 Oct 2012 00:17:03 +0000 (00:17 +0000)]
ixgbe: Add support for tracking the default user priority to SR-IOV

It is necessary to track the default user priority in the PF so that we can
force it upon the VFs.  The motivation behind this is to keep the VFs from
getting access to user priorities meant for things like storage.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen
Alexander Duyck [Thu, 24 May 2012 08:26:29 +0000 (08:26 +0000)]
ixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen

This change adds support for IPv6 and UDP to ixgbe_get_headlen. The
advantage to this is that we can now handle ipv4/UDP, ipv6/TCP, and
ipv6/UDP with a single memcpy instead of having to do them in multiple
pskb_may_pull calls.

A quick bit of testing shows that we increase throughput for a single
session of netperf from 8800Mpbs to about 9300Mpbs in the case of ipv6/TCP.
As such overall ipv6 performance should improve with this change.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoipv4: 16 slots in initial fib_info hash table
Eric Dumazet [Sun, 21 Oct 2012 20:12:09 +0000 (20:12 +0000)]
ipv4: 16 slots in initial fib_info hash table

A small host typically needs ~10 fib_info structures, so create initial
hash table with 16 slots instead of only one. This removes potential
false sharing and reallocs/rehashes (1->2->4->8->16)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agotcp: speedup SIOCINQ ioctl
Eric Dumazet [Sun, 21 Oct 2012 20:06:56 +0000 (20:06 +0000)]
tcp: speedup SIOCINQ ioctl

SIOCINQ can use the lock_sock_fast() version to avoid double acquisition
of socket lock.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agotcp: RFC 5961 5.2 Blind Data Injection Attack Mitigation
Eric Dumazet [Sun, 21 Oct 2012 19:57:11 +0000 (19:57 +0000)]
tcp: RFC 5961 5.2 Blind Data Injection Attack Mitigation

RFC 5961 5.2 [Blind Data Injection Attack].[Mitigation]

  All TCP stacks MAY implement the following mitigation.  TCP stacks
  that implement this mitigation MUST add an additional input check to
  any incoming segment.  The ACK value is considered acceptable only if
  it is in the range of ((SND.UNA - MAX.SND.WND) <= SEG.ACK <=
  SND.NXT).  All incoming segments whose ACK value doesn't satisfy the
  above condition MUST be discarded and an ACK sent back.

Move tcp_send_challenge_ack() before tcp_ack() to avoid a forward
declaration.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agopkt_sched: use ns_to_ktime() helper
Eric Dumazet [Sat, 20 Oct 2012 00:40:51 +0000 (00:40 +0000)]
pkt_sched: use ns_to_ktime() helper

ns_to_ktime() seems better than ktime_set() + ktime_add_ns()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Update driver version
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:04:53 +0000 (06:04 +0000)]
be2net: Update driver version

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix skyhawk VF PCI Device ID
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:04:40 +0000 (06:04 +0000)]
be2net: Fix skyhawk VF PCI Device ID

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix FW flashing on Skyhawk-R
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:04:16 +0000 (06:04 +0000)]
be2net: Fix FW flashing on Skyhawk-R

FW flash layout on Skyhawk-R is different from BE3-R.
Hence the code needs to be fixed to flash FW on Skyhawk-R.
Also cleaning up code in BE3-R flashing function.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Enabling Wake-on-LAN is not supported in S5 state
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:04:00 +0000 (06:04 +0000)]
be2net: Enabling Wake-on-LAN is not supported in S5 state

be_shutdown is enabling wake-on-lan by calling be_setup_wol.
Emulex adapter do not support wake-on-lan in S5 state.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix VF driver load on newer Lancer FW
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:03:49 +0000 (06:03 +0000)]
be2net: Fix VF driver load on newer Lancer FW

PF driver should enable VF so that VF goes to ready state in
new Lancer FW.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix unnecessary delay in PCI EEH
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:03:37 +0000 (06:03 +0000)]
be2net: Fix unnecessary delay in PCI EEH

During PCI EEH, driver waits for all functions in the card.
Wait is needed only once per card. Fix is to wait only for the
first PCI function.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix issues in error recovery due to wrong queue state
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:03:25 +0000 (06:03 +0000)]
be2net: Fix issues in error recovery due to wrong queue state

During recovery from a FW error, destroy queue operation may fail.
Queue should be marked as destroyed so that recovery code can recreate
the queue. Also fix queue created state not getting checked at one instance.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix ethtool get_settings output for VF
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:03:04 +0000 (06:03 +0000)]
be2net: Fix ethtool get_settings output for VF

Return default values for fields for which VFs dont have privilege to get the
required information from FW.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix error messages while driver load for VFs
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:02:52 +0000 (06:02 +0000)]
be2net: Fix error messages while driver load for VFs

VF does not have privileges to execute many commands. When VFs try
to execute those commands there are unnecessary error messages.
Fix this by executing only those commands for which VF has privilege.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix configuring VLAN for VF for Lancer
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:02:40 +0000 (06:02 +0000)]
be2net: Fix configuring VLAN for VF for Lancer

Allow adding VLANs for Lancer VF.
VLAN ID 0 should not be added to list of VLANs sent to FW.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Wait till resources are available for VF in error recovery
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:02:27 +0000 (06:02 +0000)]
be2net: Wait till resources are available for VF in error recovery

After FW error, driver should wait for NO_RESOURCE error to disappear before
proceeding with recovery.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix change MAC operation for VF for Lancer
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:02:13 +0000 (06:02 +0000)]
be2net: Fix change MAC operation for VF for Lancer

For changing MAC of VF from PF, delete MAC operation needs to be done before
assigning new MAC. Also in ndo_set_mac_address operation avoid delete MAC if
it has been already deleted by PF.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix setting QoS for VF for Lancer
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:01:53 +0000 (06:01 +0000)]
be2net: Fix setting QoS for VF for Lancer

Use Lancer specific command to set QoS for VF.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix driver load failure for different FW configs in Lancer
Padmanabh Ratnakar [Sat, 20 Oct 2012 06:01:41 +0000 (06:01 +0000)]
be2net: Fix driver load failure for different FW configs in Lancer

Driver assumes FW resource counts and capabilities while creating queues and
using functionality like RSS. This causes driver load to fail in FW configs
where resources and capabilities are reduced. Fix this by querying FW
configuration during probe and using resources and capabilities accordingly.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet:dev: remove double indentical assignment in dev_change_net_namespace().
Rami Rosen [Fri, 19 Oct 2012 01:09:30 +0000 (01:09 +0000)]
net:dev: remove double indentical assignment in dev_change_net_namespace().

This patch removes double assignment of err to -EINVAL in dev_change_net_namespace().

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosockopt: Make SO_BINDTODEVICE readable
Pavel Emelyanov [Thu, 18 Oct 2012 23:55:56 +0000 (23:55 +0000)]
sockopt: Make SO_BINDTODEVICE readable

The SO_BINDTODEVICE option is the only SOL_SOCKET one that can be set, but
cannot be get via sockopt API. The only way we can find the device id a
socket is bound to is via sock-diag interface. But the diag works only on
hashed sockets, while the opt in question can be set for yet unhashed one.

That said, in order to know what device a socket is bound to (we do want
to know this in checkpoint-restore project) I propose to make this option
getsockopt-able and report the respective device index.

Another solution to the problem might be to teach the sock-diag reporting
info on unhashed sockets. Should I go this way instead?

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agounix: Remove unused field from unix_sock
Pavel Emelyanov [Thu, 18 Oct 2012 20:28:28 +0000 (20:28 +0000)]
unix: Remove unused field from unix_sock

The struct sock *other one seem to be unused. Grep and make do not object.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agopktgen: Use ipv6_addr_any
Joe Perches [Thu, 18 Oct 2012 17:55:31 +0000 (17:55 +0000)]
pktgen: Use ipv6_addr_any

Use the standard test for a non-zero ipv6 address.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agohyperv: Remove unnecessary comments in rndis_filter_receive_data()
Haiyang Zhang [Thu, 18 Oct 2012 11:00:52 +0000 (11:00 +0000)]
hyperv: Remove unnecessary comments in rndis_filter_receive_data()

Checked with Windows networking team, there is only one RNDIS message
in each netvsc packet.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Sat, 20 Oct 2012 02:19:23 +0000 (22:19 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
This series contains updates to ixgbe and igb.

Alexander Duyck (13):
  ixgbe: Initialize q_vector cpu and affinity masks correctly
  ixgbe: Enable jumbo frames support w/ SR-IOV
  ixgbe: Move message handling routines into their own functions
  ixgbe: Add mailbox API version negotiation support to ixgbe PF
  igb: Split Rx timestamping into two separate functions
  igb: Do not use header split, instead receive all frames into a
    single buffer
  igb: Combine post-processing of skb into a single function
  igb: Map entire page and sync half instead of mapping and unmapping
    half pages
  igb: Move rx_buffer related code in Rx cleanup path into separate
    function
  igb: Lock buffer size at 2K even on systems with larger pages
  igb: Combine q_vector and ring allocation into a single function
  igb: Move the calls to set the Tx and Rx queues into igb_open
  igb: Split igb_update_dca into separate Tx and Rx functions

Tushar Dave (1):
  igb: Correcting and improving small packet check and padding
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'at91'
David S. Miller [Fri, 19 Oct 2012 17:47:00 +0000 (13:47 -0400)]
Merge branch 'at91'

Joachim Eastwood says;

====================
This patch series prepares the old at91_ether driver for code sharing
with the macb driver. The hardware is similar except for DMA TX/RX, so
its not quite clear if it is practical to support both in one
driver. But stuff like MDIO and statistics should be possible to
share.

Patch 1 adds some register defines and bits that is only found on
RM9200.

Patch 2-4 uses the register defines and access functions from the macb
header. These can be squashed if it cause too much churn.

Patch 5 merges the private at91_ether struct with the private macb
struct. This makes it easier to later share code with the macb. The
private macb struct becomes quite large, but most at91_ether specific
members are removed in later patches.

Patch 8 make macb compile when we select at91_ether. Is this approach
okey?

Patch 9 makes use of MDIO code from macb. This rips out the private
phy handling code in at91_ether. One thing that is lost is the
interrupt support for phy. But this should easy to add to macb which
will then benefit both drivers.

Patch 10 makes use of the macb_set_rx_mode from macb.

Patch 11-12 makes at91_ether share the rx dma struct members from
macb. Patch also moves the rx buffer allocation into netdev open and
dealloc into netdev close.

Last patch remove the now unused rm9200 emac header from include/mach.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoARM: AT91: remove old RM9200 EMAC register definitions
Joachim Eastwood [Thu, 18 Oct 2012 11:01:19 +0000 (11:01 +0000)]
ARM: AT91: remove old RM9200 EMAC register definitions

This file is unused after at91_ether was converted to use macb.h

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: convert to devm_* functions
Joachim Eastwood [Thu, 18 Oct 2012 11:01:18 +0000 (11:01 +0000)]
net/at91_ether: convert to devm_* functions

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: clean up rx buffer handling
Joachim Eastwood [Thu, 18 Oct 2012 11:01:17 +0000 (11:01 +0000)]
net/at91_ether: clean up rx buffer handling

This patch does two things:
* Use macb struct members and remove at91_ether ones
* Alloc DMA buffers on netdev start and dealloc on stop

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: use macb dma description struct
Joachim Eastwood [Thu, 18 Oct 2012 11:01:16 +0000 (11:01 +0000)]
net/at91_ether: use macb dma description struct

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: share macb_set_rx_mode with macb
Joachim Eastwood [Thu, 18 Oct 2012 11:01:15 +0000 (11:01 +0000)]
net/at91_ether: share macb_set_rx_mode with macb

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: use ethtool and mdio from macb
Joachim Eastwood [Thu, 18 Oct 2012 11:01:14 +0000 (11:01 +0000)]
net/at91_ether: use ethtool and mdio from macb

This rips out the at91_ether phy handling and ethtool stuff
and replace it with equivalent stuff from macb.

The only thing lost is the phy irq support from at91_ether,
but this can be added to macb and then benefit all users.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: compile macb for exported functions
Joachim Eastwood [Thu, 18 Oct 2012 11:01:13 +0000 (11:01 +0000)]
net/at91_ether: compile macb for exported functions

Comile macb as well as at91_ether to access exported functions.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/macb: export some symbols for at91_ether
Joachim Eastwood [Thu, 18 Oct 2012 11:01:12 +0000 (11:01 +0000)]
net/macb: export some symbols for at91_ether

Export some symbols to start sharing code between
macb and at91_ether drivers.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: use pclk member instead of ether_clk
Joachim Eastwood [Thu, 18 Oct 2012 11:01:11 +0000 (11:01 +0000)]
net/at91_ether: use pclk member instead of ether_clk

Remove old at91_priv member and use pclk member from macb.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether/macb: absorb at91_private in to macb private struct
Joachim Eastwood [Thu, 18 Oct 2012 11:01:10 +0000 (11:01 +0000)]
net/at91_ether/macb: absorb at91_private in to macb private struct

This will make it easier to share code between the drivers and
eventually merge them into one driver.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: use macb defs for rx dma buffers
Joachim Eastwood [Thu, 18 Oct 2012 11:01:09 +0000 (11:01 +0000)]
net/at91_ether: use macb defs for rx dma buffers

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: use macb access functions
Joachim Eastwood [Thu, 18 Oct 2012 11:01:08 +0000 (11:01 +0000)]
net/at91_ether: use macb access functions

Use macb read/write funtions and remove the old at91_ether ones.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
12 years agonet/at91_ether: use macb register definitions
Joachim Eastwood [Thu, 18 Oct 2012 11:01:07 +0000 (11:01 +0000)]
net/at91_ether: use macb register definitions

Use register and bits definitions from the macb header. This makes it
possible to have one header file for this hardware.

Process was scripted and the resulting object file has the same checksum.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>