Commit Graph

41706 Commits

Author SHA1 Message Date
Linus Torvalds
0ffb01d9de Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A quick set of fixes, some to deal with fallout from yesterday's
  net-next merge.

   1) Fix compilation of bnx2x driver with CONFIG_BNX2X_SRIOV disabled,
      from Dmitry Kravkov.

   2) Fix a bnx2x regression caused by one of Dave Jones's mistaken
      braces changes, from Eilon Greenstein.

   3) Add some protective filtering in the netlink tap code, from Daniel
      Borkmann.

   4) Fix TCP congestion window growth regression after timeouts, from
      Yuchung Cheng.

   5) Correctly adjust TCP's rcv_ssthresh for out of order packets, from
      Eric Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  tcp: properly increase rcv_ssthresh for ofo packets
  net: add documentation for BQL helpers
  mlx5: remove unused MLX5_DEBUG param in Kconfig
  bnx2x: Restore a call to config_init
  bnx2x: fix broken compilation with CONFIG_BNX2X_SRIOV is not set
  tcp: fix no cwnd growth after timeout
  net: netlink: filter particular protocols from analyzers
2013-09-07 14:27:46 -07:00
Michael Opdenacker
635ad31002 mlx5: remove unused MLX5_DEBUG param in Kconfig
This patch proposes to remove the MLX5_DEBUG kernel configuration
parameter defined in drivers/net/ethernet/mellanox/mlx5/core/Kconfig,
but used nowhere in the makefiles and source code.

This could also be fixed by using this parameter,
but this may be a leftover from driver development...

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-06 14:43:49 -04:00
Eilon Greenstein
937e5c3d63 bnx2x: Restore a call to config_init
Commit c0a77ec74f 'bnx2x: Add missing braces in
bnx2x:bnx2x_link_initialize' identified indentation problem, but resolved it
by adding braces instead of fixing the indentation. The braces now prevents a
config_init call in some cases, though it should be called regardless of that
condition. This patch removes the braces and fix the confusing indentation
that caused this mess.

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
CC: Dave Jones <davej@redhat.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-06 14:43:49 -04:00
Dmitry Kravkov
9b0be651cc bnx2x: fix broken compilation with CONFIG_BNX2X_SRIOV is not set
Since commit 60cad4e67b
"bnx2x: VF RSS support - VF side" fails to compile w/o
CONFIG_BNX2X_SRIOV option.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-06 14:43:49 -04:00
Linus Torvalds
2e515bf096 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "The usual trivial updates all over the tree -- mostly typo fixes and
  documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
  doc: Documentation/cputopology.txt fix typo
  treewide: Convert retrun typos to return
  Fix comment typo for init_cma_reserved_pageblock
  Documentation/trace: Correcting and extending tracepoint documentation
  mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
  power: Documentation: Update s2ram link
  doc: fix a typo in Documentation/00-INDEX
  Documentation/printk-formats.txt: No casts needed for u64/s64
  doc: Fix typo "is is" in Documentations
  treewide: Fix printks with 0x%#
  zram: doc fixes
  Documentation/kmemcheck: update kmemcheck documentation
  doc: documentation/hwspinlock.txt fix typo
  PM / Hibernate: add section for resume options
  doc: filesystems : Fix typo in Documentations/filesystems
  scsi/megaraid fixed several typos in comments
  ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
  treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
  page_isolation: Fix a comment typo in test_pages_isolated()
  doc: fix a typo about irq affinity
  ...
2013-09-06 09:36:28 -07:00
Olof Johansson
356f9e74ff net: stmmac: fix bad merge conflict resolution
Merge commit 06c54055be did a bad conflict resolution accidentally
leaving out a closing brace.  Add it back.

This breaks a handful of defconfigs on ARM, so it'd be good to see it
applied pretty quickly.

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-05 18:07:00 -07:00
Linus Torvalds
cc998ff881 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:
 "Noteworthy changes this time around:

   1) Multicast rejoin support for team driver, from Jiri Pirko.

   2) Centralize and simplify TCP RTT measurement handling in order to
      reduce the impact of bad RTO seeding from SYN/ACKs.  Also, when
      both timestamps and local RTT measurements are available prefer
      the later because there are broken middleware devices which
      scramble the timestamp.

      From Yuchung Cheng.

   3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel
      memory consumed to queue up unsend user data.  From Eric Dumazet.

   4) Add a "physical port ID" abstraction for network devices, from
      Jiri Pirko.

   5) Add a "suppress" operation to influence fib_rules lookups, from
      Stefan Tomanek.

   6) Add a networking development FAQ, from Paul Gortmaker.

   7) Extend the information provided by tcp_probe and add ipv6 support,
      from Daniel Borkmann.

   8) Use RCU locking more extensively in openvswitch data paths, from
      Pravin B Shelar.

   9) Add SCTP support to openvswitch, from Joe Stringer.

  10) Add EF10 chip support to SFC driver, from Ben Hutchings.

  11) Add new SYNPROXY netfilter target, from Patrick McHardy.

  12) Compute a rate approximation for sending in TCP sockets, and use
      this to more intelligently coalesce TSO frames.  Furthermore, add
      a new packet scheduler which takes advantage of this estimate when
      available.  From Eric Dumazet.

  13) Allow AF_PACKET fanouts with random selection, from Daniel
      Borkmann.

  14) Add ipv6 support to vxlan driver, from Cong Wang"

Resolved conflicts as per discussion.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits)
  openvswitch: Fix alignment of struct sw_flow_key.
  netfilter: Fix build errors with xt_socket.c
  tcp: Add missing braces to do_tcp_setsockopt
  caif: Add missing braces to multiline if in cfctrl_linkup_request
  bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize
  vxlan: Fix kernel panic on device delete.
  net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls
  net: mvneta: properly disable HW PHY polling and ensure adjust_link() works
  icplus: Use netif_running to determine device state
  ethernet/arc/arc_emac: Fix huge delays in large file copies
  tuntap: orphan frags before trying to set tx timestamp
  tuntap: purge socket error queue on detach
  qlcnic: use standard NAPI weights
  ipv6:introduce function to find route for redirect
  bnx2x: VF RSS support - VF side
  bnx2x: VF RSS support - PF side
  vxlan: Notify drivers for listening UDP port changes
  net: usbnet: update addr_assign_type if appropriate
  driver/net: enic: update enic maintainers and driver
  driver/net: enic: Exposing symbols for Cisco's low latency driver
  ...
2013-09-05 14:54:29 -07:00
David S. Miller
06c54055be Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
	net/bridge/br_multicast.c
	net/ipv6/sit.c

The conflicts were minor:

1) sit.c changes overlap with change to ip_tunnel_xmit() signature.

2) br_multicast.c had an overlap between computing max_delay using
   msecs_to_jiffies and turning MLDV2_MRC() into an inline function
   with a name using lowercase instead of uppercase letters.

3) stmmac had two overlapping changes, one which conditionally allocated
   and hooked up a dma_cfg based upon the presence of the pbl OF property,
   and another one handling store-and-forward DMA made.  The latter of
   which should not go into the new of_find_property() basic block.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:58:52 -04:00
Dave Jones
c0a77ec74f bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize
The indentation here implies that the intent was for this to be a multiline if.
Introduced a few years ago in commit ec146a6f01 ("bnx2x: Modify XGXS functions")

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:31:02 -04:00
Pravin B Shelar
f011baf95e vxlan: Fix kernel panic on device delete.
On vxlan device create if socket create fails vxlan device is not
added to hash table. Therefore we need to check if device
is in hashtable before we delete it from hlist.
Following patch avoid the crash. net-next already has this fix.

---8<---
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan]
PGD 42b2d9067 PUD 42e04c067 PMD 0
Oops: 0002 [#1] SMP
Modules linked in: vxlan(-)
Hardware name: Dell Inc. PowerEdge R620/0KCKR5, BIOS 1.4.8 10/25/2012
task: ffff88042ecf8760 ti: ffff88042f106000 task.ti: ffff88042f106000
RIP: 0010:[<ffffffffa05f9ca7>]  [<ffffffffa05f9ca7>]
vxlan_dellink+0x77/0xf0 [vxlan]
RSP: 0018:ffff88042f107e28  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88082af08000 RCX: ffff88083fd80000
RDX: 0000000000000000 RSI: ffff88042f107e58 RDI: ffff88042e12f810
RBP: ffff88042f107e48 R08: ffffffff8166eca0 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88082af087c0
R13: ffff88042e12f000 R14: ffff88042f107e58 R15: ffff88042f107e58
FS:  00007f4ed2de7700(0000) GS:ffff88043fc80000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000042e076000 CR4: 00000000000407e0
Stack:
 ffff88082af08000 ffffffff81654848 ffffffffa05fb4e0 ffffffff81654780
 ffff88042f107e98 ffffffff813b9c7a ffff88042f107e58 ffff88042f107e58
 ffff88042f107e88 ffffffffa05fb4e0 ffffffffa05fb780 ffff88042f107f18
Call Trace:
 [<ffffffff813b9c7a>] __rtnl_link_unregister+0xca/0xd0
 [<ffffffff813bb0e9>] rtnl_link_unregister+0x19/0x30
 [<ffffffffa05faa4c>] vxlan_cleanup_module+0x10/0x2f [vxlan]
 [<ffffffff81099fef>] SyS_delete_module+0x1cf/0x2c0
 [<ffffffff8146c069>] ? do_page_fault+0x9/0x10
 [<ffffffff8146f012>] system_call_fastpath+0x16/0x1b
Code: 4d 85 ed 0f 84 95 00 00 00 4c 8d a7 c0 07 00 00 49 8d bd 10 08 00
00 e8 28 e8 e6 e0 48 8b 83 c0 07 00 00 49 8b 54 24 08 48 85 c0 <48> 89
02 74 04 48 89 50 08 49 b8 00 02 20 00 00 00 ad de 4d 89
RIP  [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan]
 RSP <ffff88042f107e28>
CR2: 0000000000000000

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:31:02 -04:00
Thomas Petazzoni
15f594563d net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls
This commit implements the ->ndo_do_ioctl() operation so that the
PHY-related ioctl() calls can work from userspace, which allows
applications like mii-tool or mii-diag to do their job.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:31:01 -04:00
Thomas Petazzoni
7140860291 net: mvneta: properly disable HW PHY polling and ensure adjust_link() works
This commit fixes a long-standing bug that has been reported by many
users: on some Armada 370 platforms, only the network interface that
has been used in U-Boot to tftp the kernel works properly in
Linux. The other network interfaces can see a 'link up', but are
unable to transmit data. The reports were generally made on the Armada
370-based Mirabox, but have also been given on the Armada 370-RD
board.

The network MAC in the Armada 370/XP (supported by the mvneta driver
in Linux) has a functionality that allows it to continuously poll the
PHY and directly update the MAC configuration accordingly (speed,
duplex, etc.). The very first versions of the driver submitted for
review were using this hardware mechanism, but due to this, the driver
was not integrated with the kernel phylib. Following reviews, the
driver was changed to use the phylib, and therefore a software based
polling. In software based polling, Linux regularly talks to the PHY
over the MDIO bus, and sees if the link status has changed. If it's
the case then the adjust_link() callback of the driver is called to
update the MAC configuration accordingly.

However, it turns out that the adjust_link() callback was not
configuring the hardware in a completely correct way: while it was
setting the speed and duplex bits correctly, it wasn't telling the
hardware to actually take into account those bits rather than what the
hardware-based PHY polling mechanism has concluded. So, in fact the
adjust_link() callback was basically a no-op.

However, the network happened to be working because on the network
interfaces used by U-Boot for tftp on Armada 370 platforms because the
hardware PHY polling was enabled by the bootloader, and left enabled
by Linux. However, the second network interface not used for tftp (or
both network interfaces if the kernel is loaded from USB, NAND or SD
card) didn't had the hardware PHY polling enabled.

This patch fixes this situation by:

 (1) Making sure that the hardware PHY polling is disabled by clearing
     the MVNETA_PHY_POLLING_ENABLE bit in the MVNETA_UNIT_CONTROL
     register in the driver ->probe() function.

 (2) Making sure that the duplex and speed selections made by the
     adjust_link() callback are taken into account by clearing the
     MVNETA_GMAC_AN_SPEED_EN and MVNETA_GMAC_AN_DUPLEX_EN bits in the
     MVNETA_GMAC_AUTONEG_CONFIG register.

This patch has been tested on Armada 370 Mirabox, and now both network
interfaces are usable after boot.

[ Problem introduced by commit c5aff18 ("net: mvneta: driver for
  Marvell Armada 370/XP network unit") ]

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Jochen De Smet <jochen.armkernel@leahnim.org>
Cc: Peter Sanford <psanford@nearbuy.io>
Cc: Ethan Tuttle <ethan@ethantuttle.com>
Cc: Chény Yves-Gael <yves@cheny.fr>
Cc: Ryan Press <ryan@presslab.us>
Cc: Simon Guinot <simon.guinot@sequanux.org>
Cc: vdonnefort@lacie.com
Cc: stable@vger.kernel.org
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Vincent Donnefort <vdonnefort@gmail.com>
Tested-by: Yves-Gael Cheny <yves@cheny.fr>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:31:01 -04:00
Jon Mason
dfafb73f35 icplus: Use netif_running to determine device state
Remove the __LINK_STATE_START check to verify the device is running, in
favor of netif_running().  netif_running() performs the same check of
__LINK_STATE_START, so the code should behave the same.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: Sorbica Shieh <sorbica@icplus.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:27:32 -04:00
Vineet Gupta
27082ee1b9 ethernet/arc/arc_emac: Fix huge delays in large file copies
copying large files to a NFS mounted host was taking absurdly large
time.

Turns out that TX BD reclaim had a sublte bug.

Loop starts off from @txbd_dirty cursor and stops when it hits a BD
still in use by controller. However when it stops it needs to keep the
cursor at that very BD to resume scanning in next iteration. However it
was erroneously incrementing the cursor, causing the next scan(s) to
fail too, unless the BD chain was completely drained out.

[ARCLinux]$ ls -l -sh /disk/log.txt
 17976 -rw-r--r--    1 root     root       17.5M Sep  /disk/log.txt

========== Before =====================
[ARCLinux]$ time cp /disk/log.txt /mnt/.
real    31m 7.95s
user    0m 0.00s
sys     0m 0.10s

========== After =====================
[ARCLinux]$ time cp /disk/log.txt /mnt/.
real    0m 24.33s
user    0m 0.00s
sys     0m 0.19s

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com> (commit_signer:3/4=75%)
Cc: "David S. Miller" <davem@davemloft.net> (commit_signer:3/4=75%)
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: arc-linux-dev@synopsys.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 14:25:10 -04:00
Jason Wang
7bf6630523 tuntap: orphan frags before trying to set tx timestamp
sock_tx_timestamp() will clear all zerocopy flags of skb which may lead the
frags never to be orphaned. This will break guest to guest traffic when zerocopy
is enabled. Fix this by orphaning the frags before trying to set tx time stamp.

The issue were introduced by commit eda2977291
(tun: Support software transmit time stamping).

Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:44:31 -04:00
Jason Wang
4bfb0513ff tuntap: purge socket error queue on detach
Commit eda2977291
(tun: Support software transmit time stamping) will queue skbs into error queue
when tx stamping is enabled. But it forgets to purge the error queue during
detach. This patch fixes this.

Cc: Richard Cochran <richardcochran@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:44:31 -04:00
Michal Schmidt
df95fc44c0 qlcnic: use standard NAPI weights
Since commit 82dc3c63 ("net: introduce NAPI_POLL_WEIGHT")
netif_napi_add() produces an error message if a NAPI poll weight
greater than 64 is requested.

qlcnic requests the weight as large as 256 for some of its rings, and
smaller values for other rings. For instance in qlcnic_82xx_napi_add()
I think the intention was to give the tx+rx ring a bigger weight than
to rx-only rings, but it's actually doing the opposite. So I'm assuming
the weights do not really matter much.

Just use the standard NAPI weights for all rings.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:44:31 -04:00
Ariel Elior
60cad4e67b bnx2x: VF RSS support - VF side
In this patch capabilities are added to the Vf driver to request
multiple queues over the VF PF channel, and the logic for requesting
rss configuration for said queues.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilong Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:44:31 -04:00
Ariel Elior
b9871bcfd2 bnx2x: VF RSS support - PF side
This patch adds support for Receive Side Scaling for queues of
Virtual Functions on the PF side. This includes support for the
requests for multiple queues from VF drivers, configuration of the
HW for multiple queues per VF, and support for rss configuration
of said queues.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:44:31 -04:00
Joseph Gasparakis
53cf527513 vxlan: Notify drivers for listening UDP port changes
This patch adds two more ndo ops: ndo_add_rx_vxlan_port() and
ndo_del_rx_vxlan_port().

Drivers can get notifications through the above functions about changes
of the UDP listening port of VXLAN. Also, when physical ports come up,
now they can call vxlan_get_rx_port() in order to obtain the port number(s)
of the existing VXLAN interface in case they already up before them.

This information about the listening UDP port would be used for VXLAN
related offloads.

A big thank you to John Fastabend (john.r.fastabend@intel.com) for his
input and his suggestions on this patch set.

CC: John Fastabend <john.r.fastabend@intel.com>
CC: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:44:30 -04:00
Bjørn Mork
eef23b5398 net: usbnet: update addr_assign_type if appropriate
This module generates a common default address on init,
using eth_random_addr. Set addr_assign_type to let
userspace know the address is random unless it was
overridden by the minidriver.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:43:38 -04:00
govindarajulu.v
001e1c1d5e driver/net: enic: update enic maintainers and driver
Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com>
Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Nishank Trivedi <nistrive@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:39:33 -04:00
govindarajulu.v
4a50ddfda7 driver/net: enic: Exposing symbols for Cisco's low latency driver
This patch exposes symbols for usnic low latency driver that can be used to
register and unregister vNics as well to traverse the resources on vNics.

Signed-off-by: Upinder Malhi <umalhi@cisco.com>
Signed-off-by: Nishank Trivedi <nistrive@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:39:33 -04:00
govindarajulu.v
624dbf55a3 driver/net: enic: Try DMA 64 first, then failover to DMA
In servers with more than 1.1 TB of RAM, the existing 40/32 bit DMA
could cause failure as the DMA-able address could go outside the range
addressable using 40/32 bits.

The following patch first tried 64 bit DMA if possible, failover to 32
bit.

Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:39:33 -04:00
govindarajulu.v
bf751ba802 driver/net: enic: record q_number and rss_hash for skb
The following patch sets the skb->rxhash and skb->q_number.
This is used by RPS and RFS. Kernel can make use of hw provided hash
instead of calculating the hash.

Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com>
Signed-off-by: Nishank Trivedi <nistrive@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:39:32 -04:00
govindarajulu.v
822473b6c4 driver/net: enic: Add multi tx support for enic
The following patch adds multi tx support for enic.

Signed-off-by: Nishank Trivedi <nistrive@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05 12:39:32 -04:00
Linus Torvalds
7c049d0869 Main batch of InfiniBand/RDMA changes for 3.12 merge window:
- Large ocrdma HW driver update: add "fast register" work requests,
    fixes, cleanups
  - Add receive flow steering support for raw QPs
  - Fix IPoIB neighbour race that leads to crash
  - iSER updates including support for using "fast register" memory
    registration
  - IPv6 support for iWARP
  - XRC transport fixes
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull main batch of InfiniBand/RDMA changes from Roland Dreier:
 - Large ocrdma HW driver update: add "fast register" work requests,
   fixes, cleanups
 - Add receive flow steering support for raw QPs
 - Fix IPoIB neighbour race that leads to crash
 - iSER updates including support for using "fast register" memory
   registration
 - IPv6 support for iWARP
 - XRC transport fixes

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (54 commits)
  RDMA/ocrdma: Fix compiler warning about int/pointer size mismatch
  IB/iser: Fix redundant pointer check in dealloc flow
  IB/iser: Fix possible memory leak in iser_create_frwr_pool()
  IB/qib: Move COUNTER_MASK definition within qib_mad.h header guards
  RDMA/ocrdma: Fix passing wrong opcode to modify_srq
  RDMA/ocrdma: Fill PVID in UMC case
  RDMA/ocrdma: Add ABI versioning support
  RDMA/ocrdma: Consider multiple SGES in case of DPP
  RDMA/ocrdma: Fix for displaying proper link speed
  RDMA/ocrdma: Increase STAG array size
  RDMA/ocrdma: Dont use PD 0 for userpace CQ DB
  RDMA/ocrdma: FRMA code cleanup
  RDMA/ocrdma: For ERX2 irrespective of Qid, num_posted offset is 24
  RDMA/ocrdma: Fix to work with even a single MSI-X vector
  RDMA/ocrdma: Remove the MTU check based on Ethernet MTU
  RDMA/ocrdma: Add support for fast register work requests (FRWR)
  RDMA/ocrdma: Create IRD queue fix
  IB/core: Better checking of userspace values for receive flow steering
  IB/mlx4: Add receive flow steering support
  IB/core: Export ib_create/destroy_flow through uverbs
  ...
2013-09-05 09:39:27 -07:00
Linus Torvalds
27703bb4a6 PTR_RET() is a weird name, and led to some confusing usage. We ended
up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages.
 
 This has been sitting in linux-next for a whole cycle.
 
 Thanks,
 Rusty.
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Merge tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull PTR_RET() removal patches from Rusty Russell:
 "PTR_RET() is a weird name, and led to some confusing usage.  We ended
  up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages.

  This has been sitting in linux-next for a whole cycle"

[ There are still some PTR_RET users scattered about, with some of them
  possibly being new, but most of them existing in Rusty's tree too.  We
  have that

      #define PTR_RET(p) PTR_ERR_OR_ZERO(p)

  thing in <linux/err.h>, so they continue to work for now  - Linus ]

* tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  GFS2: Replace PTR_RET with PTR_ERR_OR_ZERO
  Btrfs: volume: Replace PTR_RET with PTR_ERR_OR_ZERO
  drm/cma: Replace PTR_RET with PTR_ERR_OR_ZERO
  sh_veu: Replace PTR_RET with PTR_ERR_OR_ZERO
  dma-buf: Replace PTR_RET with PTR_ERR_OR_ZERO
  drivers/rtc: Replace PTR_RET with PTR_ERR_OR_ZERO
  mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR().
  staging/zcache: don't use PTR_RET().
  remoteproc: don't use PTR_RET().
  pinctrl: don't use PTR_RET().
  acpi: Replace weird use of PTR_RET.
  s390: Replace weird use of PTR_RET.
  PTR_RET is now PTR_ERR_OR_ZERO(): Replace most.
  PTR_RET is now PTR_ERR_OR_ZERO
2013-09-04 17:31:11 -07:00
Sergei Shtylyov
d2779e9946 sh_eth: fix napi_{en|dis}able() calls racing against interrupts
While implementing NAPI for the driver, I overlooked the race conditions where
interrupt  handler might have called napi_schedule_prep() before napi_enable()
was called or after napi_disable() was called. If RX interrupt happens, this
would cause the endless interrupts and messages like:

sh-eth eth0: ignoring interrupt, status 0x00040000, mask 0x01ff009f.

The interrupt wouldn't even be masked by the kernel eventually since the handler
would return IRQ_HANDLED all the time.

As a fix, move napi_enable() call before request_irq() call and napi_disable()
call after free_irq() call.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 14:55:34 -04:00
Pravin B Shelar
430eda6d6d vxlan: Optimize vxlan rcv
vxlan-udp-recv function lookup vxlan_sock struct on every packet
recv by using udp-port number. we can use sk->sk_user_data to
store vxlan_sock and avoid lookup.
I have open coded rcu-api to store and read vxlan_sock from
sk_user_data to avoid sparse warning as sk_user_data is not
__rcu pointer.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 14:41:55 -04:00
Sonic Zhang
0cf915809c driver:stmmac: Adjust time stamp increase for 0.465 ns accurate only when Time stamp binary rollover is set.
The synopsys spec says When TSCRLSSR is cleard, the rollover value of
sub-second register is 0x7FFFFFFF(0.465 ns per clock).

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 14:37:02 -04:00
Duan Fugang-B38611
36e24e2ee2 net: fec: fix the error to get the previous BD entry
Bug: error to get the previous BD entry. When the current BD
is the first BD, the previous BD entry must be the last BD,
not "bdp - 1" in current logic.

V4:
  * Optimize fec_enet_get_nextdesc() for code clean.
    Replace "ex_new_bd - ring_size" with "ex_base".
    Replace "new_bd - ring_size" with "base".

V3:
  * Restore the API name because David suggest to use fec_enet_
    prefix for all function in fec driver.
    So, change next_bd() -> fec_enet_get_nextdesc()
        change pre_bd()  -> fec_enet_get_prevdesc()
  * Reduce the two APIs parameters for easy to call.

V2:
  * Add tx_ring_size and rx_ring_size to struct fec_enet_private.
  * Replace api fec_enet_get_nextdesc() with next_bd().
    Replace api fec_enet_get_prevdesc() with pre_bd().

  * Move all ring size check logic to next_bd() and pre_bd(), which
    simplifies the code redundancy.

V1:
  * Add BD ring size check to get the previous BD entry in correctly.

Reviewed-by: Li Frank <B20596@freescale.com>
Signed-off-by: Fugang Duan  <B38611@freescale.com>
Acked-by: Frank Li <frank.li@freescale.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 14:14:54 -04:00
Sergei Shtylyov
a8e9fd0f74 sh_eth: NAPI requires netif_receive_skb()
Driver supporting NAPI should use NAPI-specific function for receiving packets,
so netif_rx() should be changed to netif_receive_skb().

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 14:14:53 -04:00
Julia Lawall
0a171933a4 drivers:net: delete premature free_irq
Free_irq is not needed if there has been no request_irq.  Free_irq is
removed from both the probe and remove functions.  The correct request_irq
and free_irq are found in the open and close functions.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
@@

*e = platform_get_irq(...);
... when != request_irq(e,...)
*free_irq(e,...)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 13:18:19 -04:00
Dan Carpenter
42a5a5c128 sfc: check for allocation failure
It upsets static analyzers when we don't check for allocation failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 13:07:47 -04:00
Akeem G Abodunrin
66f40b8a29 igb: Update version number
This patch updates igb driver version to 5.0.5

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 05:49:27 -07:00
Akeem G Abodunrin
41fcfbea0c igb: Implementation to report advertised/supported link on i354 devices
This patch changes the way we report supported/advertised link for i354
devices, especially for 2.5 GB. Instead of reporting 2.5 GB for all i354
devices erroneously, check first, if it is 2.5 GB capable.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 05:41:05 -07:00
Akeem G Abodunrin
f6878e39c7 igb: Get speed and duplex for 1G non_copper devices
This patch changes how we get speed/duplex for non_copper devices; it
now uses pcs register to get current speed and duplex instead of using
generic status register that we use to detect speed/duplex for copper
devices.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 05:28:31 -07:00
Akeem G Abodunrin
f1b4d6214b igb: Support to get 2_5G link status for appropriate media type
Since i354 2.5Gb devices are not Copper media type but SerDes, so this
patch changes the way we detect speed/duplex link info for this device.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 05:19:30 -07:00
Akeem G Abodunrin
db476e8511 igb: No PHPM support in i354 devices
PHY Power Management does not exist for i354 device. So, there is no
need to read and write this register or clear go link Disconnect bit,
which could cause a lot of issues.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 05:10:55 -07:00
Akeem G Abodunrin
dfc707558b igb: M88E1543 PHY downshift implementation
This patch implements downshift mechanism for M88E1543 PHY, so that
downshift is disabled first during link setup process, and later enabled
if we are master and downshift link is negotiated. Also cleaned up
return code implementation.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 05:04:31 -07:00
Akeem G Abodunrin
99af4729c4 igb: New PHY_ID for i354 device
This patch changes PHY_ID for i354 device, now using M88E1543
instead of M88E1545.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 04:57:13 -07:00
Akeem G Abodunrin
aa9b8cc444 igb: Implementation of 1-sec delay for i210 devices
This patch adds 1 sec delay mechanism to i210 device family, in order
to avoid erroneous link issue with the link partner.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 03:53:53 -07:00
Todd Fujinaka
53ea6c7e2d igb: Don't look for a PBA in the iNVM when flashless
When a part is flashless, do not look for a PBA in the iNVM.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04 03:40:05 -07:00
Joe Perches
9e03aa2f83 treewide: Convert retrun typos to return
Tyops should be fixed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-09-04 12:26:36 +02:00
Dan Carpenter
3cc4a6784d qlcnic: remove a stray semicolon
Just remove a small semicolon.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 00:27:27 -04:00
Sucheta Chakraborty
0996b7dfc3 qlcnic: Fix sparse warning.
This patch fixes warning "warning: symbol 'qlcnic_set_dcb_ops' was
not declared. Should it be static?"

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 00:27:27 -04:00
Dan Carpenter
cab6ce9ebe caif: add a sanity check to the tty name
"tty->name" and "name" are a 64 character buffers.  My static checker
complains because we add the "cf" on the front so it look like we are
copying a 66 character string into a 64 character buffer.

Also if the name is larger than IFNAMSIZ (16) it triggers a BUG_ON()
inside the call to alloc_netdev().

This is all under CAP_SYS_ADMIN so it's not a security fix, it just adds
a little robustness.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 00:27:27 -04:00
Anton Blanchard
0b536be7b9 ibmveth: Fix little endian issues
The hypervisor is big endian, so little endian kernel builds need
to byteswap.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 00:27:27 -04:00
Jingoo Han
c67c71b4e8 net: netx-eth: remove unnecessary casting
Casting from 'void *' is unnecessary, because casting from 'void *'
to any pointer type is automatic.

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04 00:27:27 -04:00