GitHub/exynos8895/android_kernel_samsung_universal8895.git
11 years agonet: cacheline adjust struct netns_frags for better frag performance
Jesper Dangaard Brouer [Mon, 28 Jan 2013 23:44:14 +0000 (23:44 +0000)]
net: cacheline adjust struct netns_frags for better frag performance

This small cacheline adjustment of struct netns_frags improves
performance significantly for the fragmentation code.

Struct members 'lru_list' and 'mem' are both hot elements, and it
hurts performance, due to cacheline bouncing at every call point,
when they share a cacheline.  Also notice, how mem is placed
together with 'high_thresh' and 'low_thresh', as they are used in
the compare operations together.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: ks8851: convert to threaded IRQ
Felipe Balbi [Tue, 29 Jan 2013 07:16:30 +0000 (09:16 +0200)]
net: ks8851: convert to threaded IRQ

just as it should have been. It also helps
removing the, now unnecessary, workqueue.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet neigh: Optimize neighbor entry size calculation.
YOSHIFUJI Hideaki / 吉藤英明 [Thu, 24 Jan 2013 00:44:23 +0000 (00:44 +0000)]
net neigh: Optimize neighbor entry size calculation.

When allocating memory for neighbour cache entry, if
tbl->entry_size is not set, we always calculate
sizeof(struct neighbour) + tbl->key_len, which is common
in the same table.

With this change, set tbl->entry_size during the table
initialization phase, if it was not set, and use it in
neigh_alloc() and neighbour_priv().

This change also allow us to have both of protocol private
data and device priate data at tha same time.

Note that the only user of prototcol private is DECnet
and the only user of device private is ATM CLIP.
Since those are exclusive, we have not been facing issues
here.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: avoid to hang up on sending due to sysctl configuration overflow.
bingtian.ly@taobao.com [Wed, 23 Jan 2013 20:35:28 +0000 (20:35 +0000)]
net: avoid to hang up on sending due to sysctl configuration overflow.

    I found if we write a larger than 4GB value to some sysctl
variables, the sending syscall will hang up forever, because these
variables are 32 bits, such large values make them overflow to 0 or
negative.

    This patch try to fix overflow or prevent from zero value setup
of below sysctl variables:

net.core.wmem_default
net.core.rmem_default

net.core.rmem_max
net.core.wmem_max

net.ipv4.udp_rmem_min
net.ipv4.udp_wmem_min

net.ipv4.tcp_wmem
net.ipv4.tcp_rmem

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Li Yu <raise.sail@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovia-rhine: add 64bit statistics.
Jamie Gloudon [Wed, 23 Jan 2013 18:05:04 +0000 (18:05 +0000)]
via-rhine: add 64bit statistics.

Switch to use ndo_get_stats64 to get 64bit statistics.

Signed-off-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Tested-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agodrivers/net/phy/micrel_phy: Add support for new PHYs
David J. Choi [Wed, 23 Jan 2013 14:05:15 +0000 (14:05 +0000)]
drivers/net/phy/micrel_phy: Add support for new PHYs

Summary of changes:
.Newly added phys
-KSZ8081/KSZ8091, which has some phy ids.
-KSZ8061
-KSZ9031, which is Gigabit phy.
-KSZ886X, which has a switch function.
-KSZ8031, which has a same phy ids with KSZ8021.

Signed-off-by: David J. Choi <david.choi@micrel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: phy: realtek: add rtl8211e driver
Giuseppe CAVALLARO [Wed, 23 Jan 2013 00:30:03 +0000 (00:30 +0000)]
net: phy: realtek: add rtl8211e driver

This patch adds the minimal driver to manage the
Realtek RTL8211E 10/100/1000 Transceivers.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonetpoll: use the net namespace of current process instead of init_net
Cong Wang [Sun, 27 Jan 2013 15:55:21 +0000 (15:55 +0000)]
netpoll: use the net namespace of current process instead of init_net

This will allow us to setup netconsole in a different namespace
rather than where init_net is.

Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonetpoll: use ipv6_addr_equal() to compare ipv6 addr
Cong Wang [Sun, 27 Jan 2013 15:55:20 +0000 (15:55 +0000)]
netpoll: use ipv6_addr_equal() to compare ipv6 addr

ipv6_addr_equal() is faster.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonetpoll: add RCU annotation to npinfo field
Cong Wang [Tue, 22 Jan 2013 21:29:39 +0000 (21:29 +0000)]
netpoll: add RCU annotation to npinfo field

dev->npinfo is protected by RCU.

This fixes the following sparse warnings:

net/core/netpoll.c:177:48: error: incompatible types in comparison expression (different address spaces)
net/core/netpoll.c:200:35: error: incompatible types in comparison expression (different address spaces)
net/core/netpoll.c:221:35: error: incompatible types in comparison expression (different address spaces)
net/core/netpoll.c:327:18: error: incompatible types in comparison expression (different address spaces)

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Mon, 28 Jan 2013 23:21:38 +0000 (18:21 -0500)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
Included is an NFC pull.  Samuel says:

"It brings the following goodies:

- LLCP socket timestamping (To be used e.g with the recently released nfctool
  application for a more efficient skb timestamping when sniffing).
- A pretty big pn533 rework from Waldemar, preparing the driver to support
  more flavours of pn533 based devices.
- HCI changes from Eric in preparation for the microread driver support.
- Some LLCP memory leak fixes, cleanups and slight improvements.
- pn544 and nfcwilink move to the devm_kzalloc API.
- An initial Secure Element (SE) API.
- An nfc.h license change from the original author, allowing non GPL
  application code to safely include it."

Also included are a pair of mac80211 pulls.  Johannes says:

"We found two bugs in the previous code, so I'm sending you a pull
request again this soon.

This contains two regulatory bug fixes, some of Thomas's hwsim beacon
timer work and a documentation fix from Bob."

"Another pull request for mac80211-next. This time, I have a number of
things, the patches are mostly self-explanatory. There are a few fixes
from Felix and myself, and random cleanups & improvements. The biggest
thing is the partial patchset from Marco preparing for mesh powersave."

Additionally, there are a pair of iwlwifi pulls.  Johannes says:

"For iwlwifi-next, I have a few cleanups/improvements as well as a few
not very important fixes and more preparations for new devices."

"Please pull a few updates for iwlwifi. These are just some cleanups and
a debug improvement."

On top of that, there is a slew of driver updates.  This includes
brcmfmac, mwifiex, ath9k, carl9170, and mwl8k as well as a handful
of others.  The bcma and ssb busses get some attention as well.
Still, I don't see any big headliners here.

Also included is a pull of the wireless tree, in order to resolve
some merge conflicts.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Mon, 28 Jan 2013 23:18:17 +0000 (18:18 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
This series contains updates to e1000e, ixgbevf, igb and igbvf.
Majority of the patches are code cleanups of e1000e where code
is removed (Yeah!).  The other two e1000e patches are fixes.  The
first is to fix the maximum frame size for 82579 devices.  The second
fix is to resolve an issue with devices other than 82579 that suffer
from dropped transactions on platforms with deep C-states when
jumbo frames are enabled.

The ixgbevf patch is to ensure that the driver fetches the correct,
refreshed value for link status and speed when the values have changed.

The igb and igbvf patches are a solution to an issue Stefan Assmann
reported, where when the PF is up and igbvf is loaded, the MAC address
is not generated using eth_hw_addr_random().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocan: rework skb reserved data handling
Oliver Hartkopp [Mon, 28 Jan 2013 08:33:33 +0000 (08:33 +0000)]
can: rework skb reserved data handling

Added accessor and skb_reserve helpers for struct can_skb_priv.
Removed pointless skb_headroom() check.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
CC: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Mon, 28 Jan 2013 19:43:00 +0000 (14:43 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next into for-davem

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville [Mon, 28 Jan 2013 18:54:03 +0000 (13:54 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless

Conflicts:
drivers/net/wireless/ath/ath9k/main.c
drivers/net/wireless/iwlwifi/dvm/tx.c

11 years agoigbvf: be sane about random MAC addresses
Mitch A Williams [Fri, 18 Jan 2013 08:57:20 +0000 (08:57 +0000)]
igbvf: be sane about random MAC addresses

Tighten up some of the code surrounding MAC addresses. Since the PF is
now giving all zeros instead of a random address, check for this case
and generate a random address. This ensures that we always know when we
have a random address and udev won't get upset about it.

Additionally, tighten up some of the log messages and clean up the
formatting.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoigb: Don't give VFs random MAC addresses
Mitch A Williams [Fri, 18 Jan 2013 08:57:20 +0000 (08:57 +0000)]
igb: Don't give VFs random MAC addresses

If the user has not assigned a MAC address to a VM, then don't give it a
random one. Instead, just give it zeros and let it figure out what to do
with them.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoixgbevf: Make sure link status and speed are fetched
Greg Rose [Thu, 24 Jan 2013 04:54:48 +0000 (04:54 +0000)]
ixgbevf: Make sure link status and speed are fetched

A recent change makes it necessary to set get_link_status to ensure that
the driver fetches the correct, refreshed value for link status and speed
when it has changed in the physical function device.

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>
11 years agoe1000e: cleanup: remove comments which are no longer applicable
Bruce Allan [Sat, 12 Jan 2013 07:26:53 +0000 (07:26 +0000)]
e1000e: cleanup: remove comments which are no longer applicable

Code was removed but the applicable comments were not.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup hw.h
Bruce Allan [Sat, 12 Jan 2013 07:26:22 +0000 (07:26 +0000)]
e1000e: cleanup hw.h

Remove unnecessary #include, forward prototype of struct e1000_adapter and
an empty comment; fix a comment which mentions "static data for the MAC"
which is not applicable to the following struct; and cleanup some
whitespace issues.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove unused #define
Bruce Allan [Sat, 12 Jan 2013 07:25:52 +0000 (07:25 +0000)]
e1000e: cleanup: remove unused #define

All references to E1000_ERT_2048 have been removed.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: adjust PM QoS request
Bruce Allan [Sat, 12 Jan 2013 07:25:22 +0000 (07:25 +0000)]
e1000e: adjust PM QoS request

It has been found that devices other than 82579 (a.k.a. e1000_pch2lan)
suffer from dropped transactions on platforms with deep C-states when
jumbo frames are enabled.  For example, LOMs on ICH9- and ICH10-based
platforms which recently had early-receive de-featured (for stability
reasons) suffer from this.  To resolve this for all devices, when jumbo
frames are enabled set the PM QoS DMA latency request based on the size
of the receive packet buffer less one full frame.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: correct maximum frame size on 82579
Bruce Allan [Wed, 9 Jan 2013 01:20:46 +0000 (01:20 +0000)]
e1000e: correct maximum frame size on 82579

The largest jumbo frame supported by the 82579 hardware is 9018.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove e1000e_commit_phy()
Bruce Allan [Wed, 23 Jan 2013 06:50:05 +0000 (06:50 +0000)]
e1000e: cleanup: remove e1000e_commit_phy()

Remove the function e1000e_commit_phy() and replace the few calls to it
with the same function pointer that it would call.  The function pointer is
almost always set for the devices that access these code paths so there is
no risk of a NULL pointer dereference; for the few instances where the
function pointer might not be set (i.e. can be called for the few devices
which do not have this function pointer set), check for a valid function
pointer.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove e1000_get_cable_length()
Bruce Allan [Sat, 5 Jan 2013 08:06:24 +0000 (08:06 +0000)]
e1000e: cleanup: remove e1000_get_cable_length()

Remove the function e1000_get_cable_length() and replace the two calls
to it with the same function pointer that it would call.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove e1000_get_phy_cfg_done()
Bruce Allan [Sat, 5 Jan 2013 08:06:19 +0000 (08:06 +0000)]
e1000e: cleanup: remove e1000_get_phy_cfg_done()

Remove the function e1000_get_phy_cfg_done() and replace the single call
to it with the same function pointer that it would call.  The function
pointer is always set so there is no risk of a NULL pointer dereference.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: rename e1000_get_cfg_done()
Bruce Allan [Sat, 5 Jan 2013 08:06:14 +0000 (08:06 +0000)]
e1000e: cleanup: rename e1000_get_cfg_done()

In keeping with the e1000e driver function naming convention, the subject
function is renamed to indicate it is generic, i.e. it is applicable to
more than just a single MAC family (e.g. 80003es2lan, 82571, ich8lan).

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove e1000_force_speed_duplex()
Bruce Allan [Sat, 5 Jan 2013 08:06:08 +0000 (08:06 +0000)]
e1000e: cleanup: remove e1000_force_speed_duplex()

Remove the function e1000_force_speed_duplex() and replace the single call
to it with the same function pointer that it would call.  The function
pointer is always set so there is no risk of a NULL pointer dereference.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove e1000_set_d0_lplu_state()
Bruce Allan [Sat, 5 Jan 2013 08:06:03 +0000 (08:06 +0000)]
e1000e: cleanup: remove e1000_set_d0_lplu_state()

Replace the function e1000_set_d0_lplu_state() with the contents of it
coded in place of the single call to the function.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agonet: fix possible wrong checksum generation
Eric Dumazet [Fri, 25 Jan 2013 20:34:37 +0000 (20:34 +0000)]
net: fix possible wrong checksum generation

Pravin Shelar mentioned that GSO could potentially generate
wrong TX checksum if skb has fragments that are overwritten
by the user between the checksum computation and transmit.

He suggested to linearize skbs but this extra copy can be
avoided for normal tcp skbs cooked by tcp_sendmsg().

This patch introduces a new SKB_GSO_SHARED_FRAG flag, set
in skb_shinfo(skb)->gso_type if at least one frag can be
modified by the user.

Typical sources of such possible overwrites are {vm}splice(),
sendfile(), and macvtap/tun/virtio_net drivers.

Tested:

$ netperf -H 7.7.8.84
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to
7.7.8.84 () port 0 AF_INET
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 87380  16384  16384    10.00    3959.52

$ netperf -H 7.7.8.84 -t TCP_SENDFILE
TCP SENDFILE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.8.84 ()
port 0 AF_INET
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 87380  16384  16384    10.00    3216.80

Performance of the SENDFILE is impacted by the extra allocation and
copy, and because we use order-0 pages, while the TCP_STREAM uses
bigger pages.

Reported-by: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-davem' of git://gitorious.org/linux-can/linux-can-next
David S. Miller [Mon, 28 Jan 2013 05:19:34 +0000 (00:19 -0500)]
Merge branch 'for-davem' of git://gitorious.org/linux-can/linux-can-next

Marc Kleine-Budde says:

====================
this is a pull-request for net-next/master. There is are 9 patches by
Fabio Baltieri and Kurt Van Dijck which add LED infrastructure and
support for CAN devices. Bernd Krumboeck adds a driver for the USB CAN
adapter from 8 devices. Oliver Hartkopp improves the CAN gateway
functionality. There are 4 patches by me, which clean up the CAN's
Kconfig.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: add RCU annotation to sk_dst_cache field
Cong Wang [Tue, 22 Jan 2013 21:09:51 +0000 (21:09 +0000)]
net: add RCU annotation to sk_dst_cache field

sock->sk_dst_cache is protected by RCU.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agodecnet: use correct RCU API to deref sk_dst_cache field
Cong Wang [Tue, 22 Jan 2013 21:09:50 +0000 (21:09 +0000)]
decnet: use correct RCU API to deref sk_dst_cache field

sock->sk_dst_cache is protected by RCU, therefore we should
use __sk_dst_get() to deref it once we lock the sock.

This fixes several sparse warnings.

Cc: linux-decnet-user@lists.sourceforge.net
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_en: Initialize RFS filters lock and list in init_netdev
Amir Vadai [Thu, 24 Jan 2013 01:54:19 +0000 (01:54 +0000)]
net/mlx4_en: Initialize RFS filters lock and list in init_netdev

filters_lock might have been used while it was re-initialized.
Moved filters_lock and filters_list initialization to init_netdev instead of
alloc_resources which is called every time the device is configured.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_en: Fix a race when closing TX queue
Amir Vadai [Thu, 24 Jan 2013 01:54:18 +0000 (01:54 +0000)]
net/mlx4_en: Fix a race when closing TX queue

There is a possible race where the TX completion handler can clean the
entire TX queue between the decision that the queue is full and actually
closing it. To avoid this situation, check again if the queue is really
full, if not, reopen the transmit and continue with sending the packet.

CC: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_core: Return proper error code when __mlx4_add_one fails
Jack Morgenstein [Thu, 24 Jan 2013 01:54:17 +0000 (01:54 +0000)]
net/mlx4_core: Return proper error code when __mlx4_add_one fails

Returning 0 (success) when in fact we are aborting the load, leads to kernel
panic when unloading the module. Fix that by returning the actual error code.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_en: Use the correct netif lock on ndo_set_rx_mode
Eugenia Emantayev [Thu, 24 Jan 2013 01:54:16 +0000 (01:54 +0000)]
net/mlx4_en: Use the correct netif lock on ndo_set_rx_mode

The device multicast list is protected by netif_addr_lock_bh in the networking core, we should
use this locking practice in mlx4_en too.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_en: Fix traffic loss under promiscuous mode
Aviad Yehezkel [Thu, 24 Jan 2013 01:54:15 +0000 (01:54 +0000)]
net/mlx4_en: Fix traffic loss under promiscuous mode

When port is stopped and flow steering mode is not device managed: promisc QP
rule wasn't removed from MCG table.
Added code to remove it in all flow steering modes.
In addition, promsic rule removal should be in stop port and not in start
port - moved it accordingly.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_en: Issue the dump eth statistics command under lock
Eugenia Emantayev [Thu, 24 Jan 2013 01:54:14 +0000 (01:54 +0000)]
net/mlx4_en: Issue the dump eth statistics command under lock

Performing the DUMP_ETH_STATS firmware command outside the lock leads to kernel
panic when data structures such as RX/TX rings are freed in parallel, e.g when
one changes the mtu or ring sizes.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agogro: Fix kcalloc argument order
Joe Perches [Sat, 26 Jan 2013 09:24:19 +0000 (09:24 +0000)]
gro: Fix kcalloc argument order

First number, then size.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoirda: buffer overflow in irnet_ctrl_read()
Dan Carpenter [Thu, 24 Jan 2013 20:40:56 +0000 (20:40 +0000)]
irda: buffer overflow in irnet_ctrl_read()

The comments here say that the /* Max event is 61 char */ but in 2003 we
changed the event format and now the max event size is 75.  The longest
event is:

"Discovered %08x (%s) behind %08x {hints %02X-%02X}\n",
         12345678901    23  456789012    34567890    1    2 3
            +8    +21        +8          +2   +2     +1
         = 75 characters.

There was a check to return -EOVERFLOW if the user gave us a "count"
value that was less than 64.  Raising it to 75 might break backwards
compatability.  Instead I removed the check and now it returns a
truncated string if "count" is too low.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'intel'
David S. Miller [Mon, 28 Jan 2013 00:06:42 +0000 (19:06 -0500)]
Merge branch 'intel'

Jeff Kirsher says:

====================
This series contains updates to e1000e only.  All the updates come
from Bruce Allan and most of the patch fix or enable features on
i217/i218.  Most notably is patch 03 "e1000e: add support for IEEE-1588
PTP", which is v2 of the patch based on feedback from Stephen Hemminger.

Also patch 04 "e1000e: enable ECC on I217/I218 to catch packet buffer
memory errors" should be queued up for stable (as well as net) trees, but
the patch does not apply cleanly to either of those trees currently.
So I will work with Bruce to provide a version of the patch which will
apply cleanly to net (and stable) and we can queue it up at that point
for stable 3.5 tree.

The remaining patches are general cleanups of the code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoe1000e: cleanup: do not assign a variable a value when not necessary
Bruce Allan [Sat, 5 Jan 2013 05:08:37 +0000 (05:08 +0000)]
e1000e: cleanup: do not assign a variable a value when not necessary

Static analysis with cppcheck has shown a few instances of a variable
being reassigned a value before the old one has been used.  None of these
ever require the old value to be used so remove the old values.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: do not ignore variables which get set a value
Bruce Allan [Sat, 5 Jan 2013 05:08:31 +0000 (05:08 +0000)]
e1000e: do not ignore variables which get set a value

Static analysis with cppcheck has shown a few instances of a variable which
is assigned a value that is never used.  A number of these are the return
status of various driver function calls which should be passed back to the
caller of the current function.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: cleanup: remove unnecessary function prototypes
Bruce Allan [Sat, 5 Jan 2013 03:06:54 +0000 (03:06 +0000)]
e1000e: cleanup: remove unnecessary function prototypes

...and cleanup some whitespace in other prototypes.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: add comment to spinlock_t definition
Bruce Allan [Fri, 4 Jan 2013 10:06:03 +0000 (10:06 +0000)]
e1000e: add comment to spinlock_t definition

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: remove definition of struct which is no longer used
Bruce Allan [Fri, 4 Jan 2013 09:54:11 +0000 (09:54 +0000)]
e1000e: remove definition of struct which is no longer used

The e1000e driver has been converted to use extended descriptors instead of
the older legacy descriptor type.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: fix PHY init workarounds for i217/i218
Bruce Allan [Fri, 4 Jan 2013 09:53:19 +0000 (09:53 +0000)]
e1000e: fix PHY init workarounds for i217/i218

Toggling the LANPHYPC Value bit cycles the power on the PHY and sets it
back to power-on defaults.  This includes setting it's MAC-PHY messaging
mode to use the PCIe-like interconnect, so the MAC must also be set back
from SMBus mode to PCIe mode otherwise the PHY can be inaccessible.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: correct maximum frame size on i217/i218
Bruce Allan [Fri, 4 Jan 2013 09:51:36 +0000 (09:51 +0000)]
e1000e: correct maximum frame size on i217/i218

The largest jumbo frame supported by the i217 and i218 hardware is 9018.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: update copyright date
Bruce Allan [Tue, 1 Jan 2013 16:00:01 +0000 (16:00 +0000)]
e1000e: update copyright date

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: remove prototype of non-existent function
Bruce Allan [Sat, 29 Dec 2012 09:08:50 +0000 (09:08 +0000)]
e1000e: remove prototype of non-existent function

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: prevent hardware from automatically configuring PHY on I217/I218
Bruce Allan [Wed, 12 Dec 2012 04:45:51 +0000 (04:45 +0000)]
e1000e: prevent hardware from automatically configuring PHY on I217/I218

As done with the previous generation managed 82579, prevent the PHY from
being put into an unknown state by blocking the hardware from automatically
configuring the PHY as done with the previous generation managed 82579.
Instead, the driver should configure the PHY with contents of the EEPROM
image.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: enable ECC on I217/I218 to catch packet buffer memory errors
Bruce Allan [Wed, 23 Jan 2013 09:00:03 +0000 (09:00 +0000)]
e1000e: enable ECC on I217/I218 to catch packet buffer memory errors

In rare instances, memory errors have been detected in the internal packet
buffer memory on I217/I218 when stressed under certain environmental
conditions.  Enable Error Correcting Code (ECC) in hardware to catch both
correctable and uncorrectable errors.  Correctable errors will be handled
by the hardware.  Uncorrectable errors in the packet buffer will cause the
packet to be received with an error indication in the buffer descriptor
causing the packet to be discarded.  If the uncorrectable error is in the
descriptor itself, the hardware will stop and interrupt the driver
indicating the error.  The driver will then reset the hardware in order to
clear the error and restart.

Both types of errors will be accounted for in statistics counters.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: add support for IEEE-1588 PTP
Bruce Allan [Sat, 19 Jan 2013 01:09:58 +0000 (01:09 +0000)]
e1000e: add support for IEEE-1588 PTP

Add PTP IEEE-1588 support and make accesible via the PHC subsystem.

v2: make e1000e_ptp_clock_info a static const struct per Stephen Hemminger

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Reviewed-by: Jacob Keller <Jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: fix flow-control thresholds for jumbo frames on 82579/I217/I218
Bruce Allan [Sat, 8 Dec 2012 00:35:35 +0000 (00:35 +0000)]
e1000e: fix flow-control thresholds for jumbo frames on 82579/I217/I218

The previous static flow-control thresholds were causing unnecessary pause
packets to be transmitted when jumbo frames are configured reducing the
throughput.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: fix ethtool offline register test for I217
Bruce Allan [Wed, 5 Dec 2012 06:25:36 +0000 (06:25 +0000)]
e1000e: fix ethtool offline register test for I217

The SHRAH[9] register on I217 has a different R/W bit-mask than RAR and
SHRAL/H registers.  Set R/W bit-mask appropriately for SHRAH[9] when
testing the R/W ability of the register.  Also, fix the error message log
format so that it does not provide misleading information (i.e. the logged
register address could be incorrect).

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Sun, 27 Jan 2013 06:26:27 +0000 (01:26 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosoreuseport: fix use of uid in tb->fastuid
Tom Herbert [Sat, 26 Jan 2013 07:50:54 +0000 (07:50 +0000)]
soreuseport: fix use of uid in tb->fastuid

Fix a reported compilation error where ia variable of type kuid_t
was being set to zero.

Eliminate two instances of setting tb->fastuid to zero.  tb->fastuid is
only used if tb->fastreuseport is set, so there should be no problem if
tb->fastuid is not initialized (when tb->fastreuesport is zero).

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoRemove leftover #endif after introducing SO_REUSEPORT
Thomas Graf [Fri, 25 Jan 2013 00:00:58 +0000 (00:00 +0000)]
Remove leftover #endif after introducing SO_REUSEPORT

Commit 055dc21a1d (soreuseport: infrastructure) removed the #if 0
around SO_REUSEPORT without removing the corresponding #endif
thus causing the header guard to close early.

Cc: Tom Herbert <therbert@google.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Bump up the version to 5.1.32
Jitendra Kalsaria [Fri, 25 Jan 2013 10:20:41 +0000 (10:20 +0000)]
qlcnic: Bump up the version to 5.1.32

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: add support for FDB netdevice ops.
Jitendra Kalsaria [Fri, 25 Jan 2013 10:20:40 +0000 (10:20 +0000)]
qlcnic: add support for FDB netdevice ops.

Providing communication channel between KVM and e-Switch so that it
can be informed when hypervisor configures a MAC address and VLAN.

qlcnic_mac_learn module param usage will be changed to:
0 = MAC learning is disable
1 = Driver learning is enable
2 = FDB learning is enable

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: sleeping function called from invalid context
Jitendra Kalsaria [Fri, 25 Jan 2013 10:20:39 +0000 (10:20 +0000)]
qlcnic: sleeping function called from invalid context

device eth0 entered promiscuous mode
BUG: sleeping function called from invalid context at mm/slub.c:930
in_atomic(): 1, irqs_disabled(): 0, pid: 5911, name: brctl
INFO: lockdep is turned off.
Pid: 5911, comm: brctl Tainted: GF       W  O 3.6.0-0.rc7.git1.4.fc18.x86_64 #1
Call Trace:
[<ffffffff810a29ca>] __might_sleep+0x18a/0x240
[<ffffffff811b5d77>] __kmalloc+0x67/0x2d0
[<ffffffffa00a61a9>] ? qlcnic_alloc_lb_filters_mem+0x59/0xa0 [qlcnic]
[<ffffffffa00a61a9>] qlcnic_alloc_lb_filters_mem+0x59/0xa0 [qlcnic]
[<ffffffffa009e1c1>] qlcnic_set_multi+0x81/0x100 [qlcnic]
[<ffffffff8159cccf>] __dev_set_rx_mode+0x5f/0xb0
[<ffffffff8159cd4f>] dev_set_rx_mode+0x2f/0x50
[<ffffffff8159d00c>] dev_set_promiscuity+0x3c/0x50
[<ffffffffa05ed728>] br_add_if+0x1e8/0x400 [bridge]
[<ffffffffa05ee2df>] add_del_if+0x5f/0x90 [bridge]
[<ffffffffa05eee0b>] br_dev_ioctl+0x4b/0x90 [bridge]
[<ffffffff8159d613>] dev_ifsioc+0x373/0x3b0
[<ffffffff8159d78f>] dev_ioctl+0x13f/0x860
[<ffffffff812dd6e1>] ? avc_has_perm_flags+0x31/0x2c0
[<ffffffff8157c18d>] sock_do_ioctl+0x5d/0x70
[<ffffffff8157c21d>] sock_ioctl+0x7d/0x2c0
[<ffffffff812df922>] ? inode_has_perm.isra.48.constprop.61+0x62/0xa0
[<ffffffff811e4979>] do_vfs_ioctl+0x99/0x5a0
[<ffffffff812df9f7>] ? file_has_perm+0x97/0xb0
[<ffffffff810d716d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff811e4f19>] sys_ioctl+0x99/0xa0
[<ffffffff816e7369>] system_call_fastpath+0x16/0x1b
br0: port 1(eth0) entered forwarding state
br0: port 1(eth0) entered forwarding state

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix LED/Beaconing tests to work on all ports of an adapter.
Himanshu Madhani [Fri, 25 Jan 2013 10:20:38 +0000 (10:20 +0000)]
qlcnic: Fix LED/Beaconing tests to work on all ports of an adapter.

Provide port number in command payload for LED/Beaconing tests.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: avoid mixed mode interrupts for some adapter types
Manish chopra [Fri, 25 Jan 2013 10:20:37 +0000 (10:20 +0000)]
qlcnic: avoid mixed mode interrupts for some adapter types

o Some adapter types do not support co-existence of Legacy Interrupt with
  MSI-x or MSI among multiple functions. For those adapters, prevent attaching
  to a function during normal load, if MSI-x or MSI vectors are not available.
o Using module parameters use_msi=0 and use_msi_x=0, driver can be loaded in
  legacy mode for all functions in the adapter.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: enable RSS for TCP over IPv6
Shahed Shaikh [Fri, 25 Jan 2013 10:20:36 +0000 (10:20 +0000)]
qlcnic: enable RSS for TCP over IPv6

o This patch enables RSS for TYPE-C packets to enable RSS for TCP over IPv6

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: enable LRO on IPv6 without dest ip check
Shahed Shaikh [Fri, 25 Jan 2013 10:20:35 +0000 (10:20 +0000)]
qlcnic: enable LRO on IPv6 without dest ip check

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: set driver version in firmware
Sritej Velaga [Fri, 25 Jan 2013 10:20:34 +0000 (10:20 +0000)]
qlcnic: set driver version in firmware

Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'master' of git://1984.lsi.us.es/nf-next
David S. Miller [Sun, 27 Jan 2013 05:56:10 +0000 (00:56 -0500)]
Merge branch 'master' of git://1984.lsi.us.es/nf-next

Pablo Neira Ayuso says:

====================
This batch contains netfilter updates for you net-next tree, they are:

* The new connlabel extension for x_tables, that allows us to attach
  labels to each conntrack flow. The kernel implementation uses a
  bitmask and there's a file in user-space that maps the bits with the
  corresponding string for each existing label. By now, you can attach
  up to 128 overlapping labels. From Florian Westphal.

* A new round of improvements for the netns support for conntrack.
  Gao feng has moved many of the initialization code of each module
  of the netns init path. He also made several code refactoring, that
  code looks cleaner to me now.

* Added documentation for all possible tweaks for nf_conntrack via
  sysctl, from Jiri Pirko.

* Cisco 7941/7945 IP phone support for our SIP conntrack helper,
  from Kevin Cernekee.

* Missing header file in the snmp helper, from Stephen Hemminger.

* Finally, a couple of fixes to resolve minor issues with these
  changes, from myself.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocan: gw: indicate and count deleted frames due to misconfiguration
Oliver Hartkopp [Thu, 17 Jan 2013 17:43:46 +0000 (18:43 +0100)]
can: gw: indicate and count deleted frames due to misconfiguration

Add a statistic counter to detect deleted frames due to misconfiguration with
a new read-only CGW_DELETED netlink attribute for the CAN gateway.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: gw: add a variable limit for CAN frame routings
Oliver Hartkopp [Thu, 17 Jan 2013 17:43:44 +0000 (18:43 +0100)]
can: gw: add a variable limit for CAN frame routings

To prevent a possible misconfiguration (e.g. circular CAN frame routings)
limit the number of routings of a single CAN frame to a small variable value.

The limit can be specified by the module parameter 'max_hops' (1..6).
The default value is 1 (one hop), according to the original can-gw behaviour.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: gw: make routing to the incoming CAN interface configurable
Oliver Hartkopp [Thu, 17 Jan 2013 17:43:41 +0000 (18:43 +0100)]
can: gw: make routing to the incoming CAN interface configurable

Introduce new configuration flag CGW_FLAGS_CAN_IIF_TX_OK to configure if a
CAN sk_buff that has been routed with can-gw is allowed to be send back to
the originating CAN interface.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: add private data space for CAN sk_buffs
Oliver Hartkopp [Thu, 17 Jan 2013 17:43:39 +0000 (18:43 +0100)]
can: add private data space for CAN sk_buffs

The struct can_skb_priv is used to transport additional information along
with the stored struct can(fd)_frame that can not be contained in existing
struct sk_buff elements.

can_skb_priv is located in the skb headroom, which does not touch the existing
CAN sk_buff usage with skb->data and skb->len, so that even out-of-tree
CAN drivers can be used without changes.

Btw. out-of-tree CAN drivers without can_skb_priv in the sk_buff headroom
would not support features based on can_skb_priv.

The can_skb_priv->ifindex contains the first interface where the CAN frame
appeared on the local host. Unfortunately skb->skb_iif can not be used as this
value is overwritten in every netif_receive_skb() call.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: usb_8dev: add LED trigger support
Bernd Krumboeck [Tue, 18 Dec 2012 17:51:04 +0000 (18:51 +0100)]
can: usb_8dev: add LED trigger support

Add support for canbus activity led indicators on usb_8dev devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Signed-off-by: Bernd Krumboeck <krumboeck@universalnet.at>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: sja1000: add LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:51:03 +0000 (18:51 +0100)]
can: sja1000: add LED trigger support

Add support for canbus activity led indicators on sja1000 devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: mcp251x: add LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:51:02 +0000 (18:51 +0100)]
can: mcp251x: add LED trigger support

Add support for canbus activity led indicators on mcp251x devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Christian Pellegrin <chripell@fsfe.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: c_can: add LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:51:01 +0000 (18:51 +0100)]
can: c_can: add LED trigger support

Add support for canbus activity led indicators on c_can devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Cc: AnilKumar Ch <anilkumar@ti.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: ti_hecc: add LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:51:00 +0000 (18:51 +0100)]
can: ti_hecc: add LED trigger support

Add support for canbus activity led indicators on ti_hecc devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Anant Gole <anantgole@ti.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: at91_can: add LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:50:59 +0000 (18:50 +0100)]
can: at91_can: add LED trigger support

Add support for canbus activity led indicators on at91_can devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: flexcan: add LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:50:58 +0000 (18:50 +0100)]
can: flexcan: add LED trigger support

Add support for canbus activity led indicators on flexcan devices by
calling appropriate can_led_* functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: rename LED trigger name on netdev renames
Kurt Van Dijck [Tue, 18 Dec 2012 17:50:57 +0000 (18:50 +0100)]
can: rename LED trigger name on netdev renames

The LED trigger name for CAN devices is based on the initial
CAN device name, but does never change. The LED trigger name
is not guaranteed to be unique in case of hotplugging CAN devices.

This patch tries to address this problem by modifying the
LED trigger name according to the CAN device name when
the latter changes.

v1 - Kurt Van Dijck
v2 - Fabio Baltieri
- remove rename blocking if trigger is bound
- use led-subsystem function for the actual rename (still WiP)
- call init/exit functions from dev.c
v3 - Kurt Van Dijck
- safe operation for non-candev based devices (vcan, slcan)
based on earlier patch
v4 - Kurt Van Dijck
- trivial patch mistakes fixed

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: export a safe netdev_priv wrapper for candev
Kurt Van Dijck [Tue, 18 Dec 2012 17:50:56 +0000 (18:50 +0100)]
can: export a safe netdev_priv wrapper for candev

In net_device notifier calls, it was impossible to determine
if a CAN device is based on candev in a safe way.
This patch adds such test in order to access candev storage
from within those notifiers.

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: add tx/rx LED trigger support
Fabio Baltieri [Tue, 18 Dec 2012 17:50:55 +0000 (18:50 +0100)]
can: add tx/rx LED trigger support

This patch implements the functions to add two LED triggers, named
<ifname>-tx and <ifname>-rx, to a canbus device driver.

Triggers are called from specific handlers by each CAN device driver and
can be disabled altogether with a Kconfig option.

The implementation keeps the LED on when the interface is UP and blinks
the LED on network activity at a configurable rate.

This only supports can-dev based drivers, as it uses some support field
in the can_priv structure.

Supported drivers should call devm_can_led_init() and can_led_event() as
needed.

Cleanup is handled automatically by devres, so no *_exit function is
needed.

Supported events are:
- CAN_LED_EVENT_OPEN: turn on tx/rx LEDs
- CAN_LED_EVENT_STOP: turn off tx/rx LEDs
- CAN_LED_EVENT_TX: trigger tx LED blink
- CAN_LED_EVENT_RX: trigger tx LED blink

Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: usb_8dev: Add support for USB2CAN interface from 8 devices
Bernd Krumboeck [Sat, 19 Jan 2013 06:30:45 +0000 (07:30 +0100)]
can: usb_8dev: Add support for USB2CAN interface from 8 devices

Add device driver for USB2CAN interface from "8 devices" (http://www.8devices.com).

changes since v10:
* small cleanups

changes since v9:
* fixed syslog messages
* fixed crc error number
* increased MAX_RX_URBS and MAX_TX_URBS

changes since v8:
* remove all sysfs files

changes since v7:
* add sysfs documentation
* fix minor styling issue
* fixed can state for passive mode
* changed handling for crc errors

changes since v6:
* changed some variable types to big endian equivalent
* small cleanups

changes since v5:
* unlock mutex on error

changes since v4:
* removed FSF address
* renamed struct usb_8dev
* removed unused variable free_slots
* replaced some _to_cpu functions with pointer equivalent
* fix return value for usb_8dev_set_mode
* handle can errors with separate function
* fix overrun error handling
* rewrite error handling for usb_8dev_start_xmit
* fix urb submit in usb_8dev_start
* various small fixes

Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Bernd Krumboeck <krumboeck@universalnet.at>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: sja1000: correct indention of Kconfig help text
Marc Kleine-Budde [Thu, 9 Aug 2012 07:32:09 +0000 (09:32 +0200)]
can: sja1000: correct indention of Kconfig help text

This patch changes the indention of the Kconfig help text to the default
<tab> + 2 <space>.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: Kconfig: switch on all CAN protocolls by default
Marc Kleine-Budde [Fri, 20 Jul 2012 19:22:27 +0000 (21:22 +0200)]
can: Kconfig: switch on all CAN protocolls by default

This patch enables all basic CAN protocol by default.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: Kconfig: convert 'depends on CAN_DEV' into 'if CAN_DEV...endif' block
Marc Kleine-Budde [Fri, 20 Jul 2012 19:04:13 +0000 (21:04 +0200)]
can: Kconfig: convert 'depends on CAN_DEV' into 'if CAN_DEV...endif' block

This patch adds an 'if CAN_DEV...endif' Block around the CAN driver
symbols in drivers/net/can/Kconfig. So the 'depends on CAN' dependencies
can be removed.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agocan: Kconfig: convert 'depends on CAN' into 'if CAN...endif' block
Marc Kleine-Budde [Fri, 20 Jul 2012 19:00:00 +0000 (21:00 +0200)]
can: Kconfig: convert 'depends on CAN' into 'if CAN...endif' block

This patch adds an 'if CAN...endif' Block around all CAN symbols in
net/can/Kconfig. So the 'depends on CAN' dependencies can be removed.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
11 years agoixgbevf: Fix link speed message to support 100Mbps
Greg Rose [Sat, 19 Jan 2013 06:40:22 +0000 (06:40 +0000)]
ixgbevf: Fix link speed message to support 100Mbps

The X540 can link at 100Mbps - fix the link speed indicator message to
show that value.

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>
11 years agoixgbe: Limit number of reported VFs to device specific value
Donald Dutile [Tue, 11 Dec 2012 08:26:48 +0000 (08:26 +0000)]
ixgbe: Limit number of reported VFs to device specific value

ixgbe claims it supports 64 VFs in its SRIOV capability
structure, but the driver only supports 63.  Adjust it
so sysfs sriov configuration checking will check with
the proper totalvf value.

Signed-off-by: Donald Dutile <ddutile@redhat.com>
Acked-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>
11 years agoixgbe: Implement PCI SR-IOV sysfs callback operation
Greg Rose [Tue, 11 Dec 2012 08:26:43 +0000 (08:26 +0000)]
ixgbe: Implement PCI SR-IOV sysfs callback operation

Implement callbacks in the driver for the new PCI bus driver
interface that allows the user to enable/disable SR-IOV VFs
in a device via the sysfs interface.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
CC: Don Dutile <ddutile@redhat.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>
11 years agoixgbe: Modularize SR-IOV enablement code
Greg Rose [Tue, 11 Dec 2012 08:26:38 +0000 (08:26 +0000)]
ixgbe: Modularize SR-IOV enablement code

In preparation for enable/disable of SR-IOV via the PCI sysfs interface
move some core SR-IOV enablement code that would be common to module
parameter usage or callback from the PCI bus driver to a separate
function so that it can be used by either method.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
CC: Don Dutile <ddutile@redhat.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>
11 years agoixgbe: Make mailbox ops initialization unconditional
Greg Rose [Tue, 11 Dec 2012 08:26:33 +0000 (08:26 +0000)]
ixgbe: Make mailbox ops initialization unconditional

There is no actual dependency on initialization of the mailbox ops on
whether SR-IOV is enabled or not and it doesn't hurt to go ahead and
initialize ops unconditionally.  Move the initialization into the device
probe so that the mailbox ops are initialized at the time we have the
board info necessary to do it.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
CC: Don Dutile <ddutile@redhat.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>
11 years agoixgbe: only compile ixgbe_debugfs.o when enabled
Jacob Keller [Sat, 8 Dec 2012 09:04:25 +0000 (09:04 +0000)]
ixgbe: only compile ixgbe_debugfs.o when enabled

This patch modifies ixgbe_debugfs.c and the Makefile for the ixgbe
driver to only compile the file when the config is enabled. This means
we can remove the #ifdef inside the ixgbe_debugfs.c file.

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>
11 years agoixgbe: Inline Rx PTP descriptor handling
Alexander Duyck [Wed, 5 Dec 2012 06:51:29 +0000 (06:51 +0000)]
ixgbe: Inline Rx PTP descriptor handling

This change is meant to inline the Rx PTP descriptor handling.  The main
motivation is to avoid unnecessary jumps into function calls that we then
immediately exit because we are not performing timestamps.

The net result of this change is that ixgbe_ptp_rx_tstamp drops from .5% CPU
utilization in my performance runs to 0%, and the only value tested is the Rx
descriptor which should already be warm in the cache if not stored in a
register.

Cc: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-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>
11 years agoixgbe: Fix overwriting of rx_mtrl in ixgbe_ptp_hwtstamp_ioctl
Jacob Keller [Wed, 5 Dec 2012 07:53:38 +0000 (07:53 +0000)]
ixgbe: Fix overwriting of rx_mtrl in ixgbe_ptp_hwtstamp_ioctl

This patch corrects a bug introduced by commit f3444d8b. The rxmtrl value for
the UDP port to timestamp on was moved above the switch statement, but was
overwritten to 0 if the ioctl selected one of the V1 filters.

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>
11 years agoixgbe: add warning when scheduling reset
Jacob Keller [Sat, 1 Dec 2012 07:57:17 +0000 (07:57 +0000)]
ixgbe: add warning when scheduling reset

This patch adds warnings when a reset of the adapter is scheduled so that the
user can see log of why the reset occurred.

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>
11 years agoixgbe: Add ptp work item to poll for the Tx timestamp
Jacob Keller [Wed, 5 Dec 2012 07:24:46 +0000 (07:24 +0000)]
ixgbe: Add ptp work item to poll for the Tx timestamp

This patch copies the igb implementation of Tx timestamps, which uses a work
item to poll for the Tx timestamp. In addition it adds a timeout value of 15
seconds, after which it will stop polling.

This is necessary due to an issue with the descriptor being marked done before
the Tx timestamp event has occurred. These two events don't correlate, so using
the done bit on the descriptor as indication that the timestamp must already
have been taken leads to potentially dropped Tx timestamps (especially under
heavy packet load)

Reported-by: Matthew Vick <matthew.vick@intel.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>
11 years agoixgbe: Use watchdog check in favor of BPF for detecting latched timestamp
Jacob Keller [Wed, 5 Dec 2012 07:24:41 +0000 (07:24 +0000)]
ixgbe: Use watchdog check in favor of BPF for detecting latched timestamp

This patch removes ixgbe_ptp_match, and the corresponding packet filtering from
ixgbe driver. This code was previously causing some issues within the hotpath of
the driver. However the code also provided a check against possible frozen Rx
timestamp due to dropped packets when the Rx ring is full. This patch provides a
replacement solution based on the watchdog.

To this end, whenever a packet consumes the Rx timestamp it stores the jiffy
value in the rx_ring structure. Watchdog updates its own jiffy timer whenever
there is no valid timestamp in the registers.

If watchdog detects a valid timestamp in the registers, (meaning that no Rx
packet has consumed it yet) it will check which time is most recent, the last
time in the watchdog, or any time in the rx_rings. If the most recent "event"
was more than 5seconds ago, it will flush the Rx timestamp and print a warning
message to the syslog.

Reported-by: Alexander Duyck <alexander.h.duyck@intel.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>
11 years agoixgbe: Update ptp_overflow check comment and jiffies
Jacob Keller [Wed, 5 Dec 2012 07:24:35 +0000 (07:24 +0000)]
ixgbe: Update ptp_overflow check comment and jiffies

This patch fixes the comment on ptp_overflow_check to match up with what is
currently used as the parameters. Also change the jiffies check to use
time_is_after_jiffies macro.

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>
11 years agoixgbe: add missing supported filters to get_ts_info
Jacob Keller [Thu, 15 Nov 2012 01:10:37 +0000 (01:10 +0000)]
ixgbe: add missing supported filters to get_ts_info

This patch updates the filters for ethtool's get_ts_info to return support for
all filters which can be supported by upscaling to ptp_v2_event. The intent
behind this change is due to reasoning that we do in fact support the
filters. (hwtstamp_ioctl returns success after setting the filter to the
upscaled version). In this way we can remain consistent over which filters are
supported via the get_ts_info ioctl and which filters are in practice actually
supported.

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>