firefly-linux-kernel-4.4.55.git
9 years agomac802154: iface: fix hrtimer cancel on ifdown
Alexander Aring [Sat, 13 Jun 2015 20:15:51 +0000 (22:15 +0200)]
mac802154: iface: fix hrtimer cancel on ifdown

The interframe spacing timer is a per phy definition and is part of a
ieee802154_local structure. If we have possible multiple interfaces
ifdown one interface then the timer should not be cancled. First if the
last interface is down and the receive handling is stopped we should be
sure that the interframe spacing timer isn't run anymore.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: rx packet handle cleanup
Varka Bhadram [Fri, 12 Jun 2015 07:14:24 +0000 (12:44 +0530)]
mac802154: rx packet handle cleanup

This patch replaces !netif_running(sdata->dev) with
!ieee802154_sdata_running(sdata) and also devide the
code two separate if branches.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Remove redundant check for ACL_LINK
Johan Hedberg [Fri, 12 Jun 2015 10:04:47 +0000 (13:04 +0300)]
Bluetooth: Remove redundant check for ACL_LINK

The encryption key size is read only for BR/EDR (ACL_LINK) connections
so there's no need to check for it in the read_enc_key_size_complete()
callback.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: fix flags BIT definitions order
Alexander Aring [Fri, 12 Jun 2015 07:24:00 +0000 (09:24 +0200)]
mac802154: fix flags BIT definitions order

This patch fixes commits ("mac802154: cleanup ieee802154 hardware flags")
bcbfd2078d9b11277d9c9ce0c30ba73c750503c9 and ("mac802154: cleanup address
filtering flags") 6b70a43c7e0202cf285c864bc9f20f607c42e432 by starting
the flags definitions at BIT(0) which is same like the previous behaviour.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: cleanup llsec param flags
Varka Bhadram [Fri, 12 Jun 2015 03:43:49 +0000 (09:13 +0530)]
mac802154: cleanup llsec param flags

This patch changes the setting of llsec param flag with the BIT macro.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Use actual encryption key size for SMP over BR/EDR
Johan Hedberg [Thu, 11 Jun 2015 10:52:30 +0000 (13:52 +0300)]
Bluetooth: Use actual encryption key size for SMP over BR/EDR

When pairing over SMP over BR/EDR the generated LTK has by default the
same key size as the BR/EDR Link Key. Make sure we don't set our
Pairing Request/Response max value to anything higher than that.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Read encryption key size for BR/EDR connections
Johan Hedberg [Thu, 11 Jun 2015 10:52:29 +0000 (13:52 +0300)]
Bluetooth: Read encryption key size for BR/EDR connections

Since Bluetooth 3.0 there's a HCI command available for reading the
encryption key size of an BR/EDR connection. This information is
essential e.g. for generating an LTK using SMP over BR/EDR, so store
it as part of struct hci_conn.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Move SC-only check outside of BT_CONFIG branch
Johan Hedberg [Thu, 11 Jun 2015 10:52:28 +0000 (13:52 +0300)]
Bluetooth: Move SC-only check outside of BT_CONFIG branch

Checking for SC-only mode requirements when we get an encrypt change
event shouldn't be limited to the BT_CONFIG state but done any time
encryption changes.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Add debugfs support for min LE encryption key size
Johan Hedberg [Thu, 11 Jun 2015 10:52:27 +0000 (13:52 +0300)]
Bluetooth: Add debugfs support for min LE encryption key size

This patch adds a debugfs control to set a different minimum LE
encryption key size. This is useful for testing that implementation of
the encryption key size handling is behaving correctly (e.g. that we
get appropriate 'Encryption Key Size' error responses when necessary).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Add debugfs support for max LE encryption key size
Johan Hedberg [Thu, 11 Jun 2015 10:52:26 +0000 (13:52 +0300)]
Bluetooth: Add debugfs support for max LE encryption key size

This patch adds a debugfs control to set a different maximum LE
encryption key size. This is useful for testing that implementation of
the encryption key size handling is behaving correctly.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Stop sabotaging list poisoning
Alexey Dobriyan [Wed, 10 Jun 2015 17:28:33 +0000 (20:28 +0300)]
Bluetooth: Stop sabotaging list poisoning

list_del() poisons pointers with special values, no need to overwrite them.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agonl802154: fix misspelled enum
Christoffer Holmstedt [Wed, 10 Jun 2015 09:03:59 +0000 (11:03 +0200)]
nl802154: fix misspelled enum

Signed-off-by: Christoffer Holmstedt <christoffer@christofferholmstedt.se>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Fix exposing full value of shortened LTKs
Johan Hedberg [Wed, 10 Jun 2015 08:11:20 +0000 (11:11 +0300)]
Bluetooth: Fix exposing full value of shortened LTKs

When we notify user space of a new LTK or distribute an LTK to the
remote peer the value passed should be the shortened version so that
it's easy to compare values in various traces. The core spec also sets
the requirements for the shortening/masking as:

"The masking shall be done after generation and before being
distributed, used or stored."

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: hci_uart: Add bcm_set_baudrate()
Frederic Danis [Tue, 9 Jun 2015 14:15:37 +0000 (16:15 +0200)]
Bluetooth: hci_uart: Add bcm_set_baudrate()

Add vendor specific command to change controller device speed.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154: cc2520: check for return values in cc2520_filter()
Stefan Schmidt [Tue, 9 Jun 2015 09:49:27 +0000 (11:49 +0200)]
ieee802154: cc2520: check for return values in cc2520_filter()

neither ram nor register write return values have been checked here.
Checking both now. Assign ret with 0 as all other assignments are inside
if blocks and might not happen before we return ret.

CID: 1230469
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: hci_bcsp: Clean up code Fix
Prasanna Karthik [Tue, 9 Jun 2015 11:51:53 +0000 (11:51 +0000)]
Bluetooth: hci_bcsp: Clean up code Fix

Fix for spaces prohibited around that '->' reported by checkpatch and space prohibited
between function name and open parenthesis '('

Signed-off-by: Prasanna Karthik <mkarthi3@visteon.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Move SCO support under BT_BREDR config option
Arron Wang [Tue, 9 Jun 2015 09:47:23 +0000 (17:47 +0800)]
Bluetooth: Move SCO support under BT_BREDR config option

SCO/eSCO link is supported by BR/EDR controller, it is
suitable to move them under BT_BREDR config option

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Make l2cap_recv_acldata() and sco_recv_scodata() return void
Arron Wang [Tue, 9 Jun 2015 09:47:22 +0000 (17:47 +0800)]
Bluetooth: Make l2cap_recv_acldata() and sco_recv_scodata() return void

The return value of l2cap_recv_acldata() and sco_recv_scodata()
are not used, then change it to return void

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Don't call shutdown when leaving user channel
Loic Poulain [Tue, 9 Jun 2015 09:46:30 +0000 (11:46 +0200)]
Bluetooth: Don't call shutdown when leaving user channel

Don't interfere with the user channel exclusive access.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154/mrf24j40: make sure we do not override return values
Stefan Schmidt [Tue, 9 Jun 2015 08:52:26 +0000 (10:52 +0200)]
ieee802154/mrf24j40: make sure we do not override return values

If we run into an error during rx we set the the error code in ret, but override
it afterwards. Using a different variable for the extra case avoids this
situation.

CID: 12269821226983
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154/iface: remove superfluous WARN_ON call in slave_open()
Stefan Schmidt [Mon, 8 Jun 2015 20:06:40 +0000 (22:06 +0200)]
mac802154/iface: remove superfluous WARN_ON call in slave_open()

This call was used before we aligned our code with the wireless code base. We
are wanted to handle this in the err: code path. Which would actually not work
because the WARN_ON() macro would reset the res value to 0 and thus we would
never hit err:. Removing it makes the code do what we actually intend.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: btusb: Fix secure send command length alignment on Intel 8260
Marcel Holtmann [Sun, 7 Jun 2015 07:47:08 +0000 (09:47 +0200)]
Bluetooth: btusb: Fix secure send command length alignment on Intel 8260

This patch fixes the command length alignment issue for Intel Bluetooth
8260.

The length of parameters in the firmware downloading command must be
multiplication of 4. If not, the command must append Intel_NOP command
with extra parameters, zeros, at the end, and the firmware file is
already included Intel_NOP command for alignment.

This patch checks the next command and if the next command is Intel_NOP
command, it reads the Intel_NOP command and send them together.

For example, if the data from the firmware file looks like this:
8E FC 03 11 22 33 02 FC 03 00 00 00

Previously, btusb sends two commands:
09 FC 06 8E FC 03 11 22 33
09 FC 06 02 FC 03 00 00 00

This won't work because the length of parameters are 6 which violates
the 4 byte alignment.

This patch will append them together and send as one command:
09 FC 0C 8E FC 03 11 22 33 02 FC 03 00 00 00

Based on previous work from Tedd Ho-Jeong An <tedd.an@intel.com>

Reported-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Tested-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
9 years agoBluetooth: Fix encryption key size handling for LTKs
Johan Hedberg [Mon, 8 Jun 2015 15:14:39 +0000 (18:14 +0300)]
Bluetooth: Fix encryption key size handling for LTKs

The encryption key size for LTKs is supposed to be applied only at the
moment of encryption. When generating a Link Key (using LE SC) from
the LTK the full non-shortened value should be used. This patch
modifies the code to always keep the full value around and only apply
the key size when passing the value to HCI.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: btusb: Correct typo in Roper Class 1 Bluetooth Dongle
Aleksei Volkov [Mon, 8 Jun 2015 09:02:10 +0000 (12:02 +0300)]
Bluetooth: btusb: Correct typo in Roper Class 1 Bluetooth Dongle

That patch corrects the typo in usb vendor id for Roper Class 1 Bluetooth
Dongle. Problem with typo is present since 4.0 kernel.

Content /sys/kernel/debug/usb/devices for these dongle:

T:  Bus=05 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1310 ProdID=0001 Rev=15.00
S:  Manufacturer=SiW
S:  Product=SiW
S:  SerialNumber=E7BB050D0B00
C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr= 50mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Aleksei Volkov <info@dv2c.ru>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org # 4.0.x
9 years agoBluetooth: btusb: Remove unneeded btusb_read_local_version function
Marcel Holtmann [Sun, 7 Jun 2015 08:01:02 +0000 (10:01 +0200)]
Bluetooth: btusb: Remove unneeded btusb_read_local_version function

The btusb_read_local_version function has only a single user and with
that just move its functionality in place where it belongs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agoBluetooth: btusb: Remove double error check from local version command
Marcel Holtmann [Sun, 7 Jun 2015 08:01:01 +0000 (10:01 +0200)]
Bluetooth: btusb: Remove double error check from local version command

The __hci_cmd_sync function already handles the command status and
command complete errors. No need to check the status field again.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agoBluetooth: btusb: Fix memory leak in Intel setup routine
Marcel Holtmann [Sun, 7 Jun 2015 07:42:19 +0000 (09:42 +0200)]
Bluetooth: btusb: Fix memory leak in Intel setup routine

The SKB returned from the Intel specific version information command is
missing a kfree_skb.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
9 years agoBluetooth: Fix race condition with user channel and setup stage
Marcel Holtmann [Sat, 6 Jun 2015 04:06:49 +0000 (06:06 +0200)]
Bluetooth: Fix race condition with user channel and setup stage

During the initial setup stage of a controller, the low-level transport
is actually active. This means that HCI_UP is true. To avoid toggling
the transport off and back on again for normal operation the kernel
holds a grace period with HCI_AUTO_OFF that will turn the low-level
transport off in case no user is present.

The idea of the grace period is important to avoid having to initialize
all of the controller twice. So legacy ioctl and the new management
interface knows how to clear this grace period and then start normal
operation.

For the user channel operation this grace period has not been taken into
account which results in the problem that HCI_UP and HCI_AUTO_OFF are
set and the kernel will return EBUSY. However from a system point of
view the controller is ready to be grabbed by either the ioctl, the
management interface or the user channel.

This patch brings the user channel to the same level as the other two
entries for operating a controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
9 years agoath3k: add support of 13d3:3474 AR3012 device
Dmitry Tunin [Sat, 6 Jun 2015 17:29:25 +0000 (20:29 +0300)]
ath3k: add support of 13d3:3474 AR3012 device

BugLink: https://bugs.launchpad.net/bugs/1427680
This device requires new firmware files
 AthrBT_0x11020100.dfu and ramps_0x11020100_40.dfu added to
/lib/firmware/ar3k/ that are not included in linux-firmware yet.

T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=13d3 ProdID=3474 Rev=00.01
C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
9 years agoath3k: Add support of 0489:e076 AR3012 device
Dmitry Tunin [Sat, 6 Jun 2015 17:25:40 +0000 (20:25 +0300)]
ath3k: Add support of 0489:e076 AR3012 device

BugLink: https://bugs.launchpad.net/bugs/1462614
This device requires new firmware files
 AthrBT_0x11020100.dfu and ramps_0x11020100_40.dfu added to
/lib/firmware/ar3k/ that are not included in linux-firmware yet.

T: Bus=03 Lev=01 Prnt=01 Port=09 Cnt=06 Dev#= 7 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0489 ProdID=e076 Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
9 years agomac802154: change pan_coord type to bool
Alexander Aring [Sat, 6 Jun 2015 15:30:53 +0000 (17:30 +0200)]
mac802154: change pan_coord type to bool

To indicate if it's a coordinator or not a bool is enough. There should
no more values available which represent some other state.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: add missing structure comments
Alexander Aring [Sat, 6 Jun 2015 15:30:52 +0000 (17:30 +0200)]
mac802154: add missing structure comments

This patch add missing comments to internal mac802154 structures.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: rearrange attribute in ieee802154_hw
Alexander Aring [Sat, 6 Jun 2015 15:30:51 +0000 (17:30 +0200)]
mac802154: rearrange attribute in ieee802154_hw

This patch removes the priv attribute in ieee802154_hw to the right
section which is commented by attributes which needs to be filled by
driver layer.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: remove unused hw_filt attribute
Alexander Aring [Sat, 6 Jun 2015 15:30:50 +0000 (17:30 +0200)]
mac802154: remove unused hw_filt attribute

This patch removed an attribute from ieee802154_hw structure which is
never used inside kernel. Address information are stored inside wpan_dev
nowadays.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: cleanup ieee802154 hardware flags
Alexander Aring [Sat, 6 Jun 2015 15:30:49 +0000 (17:30 +0200)]
mac802154: cleanup ieee802154 hardware flags

This patch changes the ieee802154 hardware flags to enums and setting the
flag values with the BIT macro. Additional this patch changes the
commenting style for matching usual kernel style.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: remove aack hw flag
Alexander Aring [Sat, 6 Jun 2015 15:30:48 +0000 (17:30 +0200)]
mac802154: remove aack hw flag

This patch removes the hardware auto acknowdledge flag which indicates
that the transceiver supports this handling. This flag is never
evaluated inside mac802154 and all transceivers should support this
handling by default per hardware.

Suggested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: cleanup address filtering flags
Alexander Aring [Sat, 6 Jun 2015 15:30:47 +0000 (17:30 +0200)]
mac802154: cleanup address filtering flags

This patch changes the address filtering flags to enums and setting the
flag values with the BIT macro. Additional this patch changes the
commenting style for matching usual kernel style.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomac802154: remove unneeded vif struct
Alexander Aring [Sat, 6 Jun 2015 15:30:46 +0000 (17:30 +0200)]
mac802154: remove unneeded vif struct

This patch removes the virtual interface structure from sub if data
struct, because it isn't used anywhere. This structure could be useful
for give per interface information at softmac driver layer. Nevertheless
there exist no use case currently and it contains the interface type
information currently. This information is also stored inside wpan dev
which is now used to check on the wpan dev interface type.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Reorder HCI user channel socket release
Loic Poulain [Thu, 21 May 2015 14:46:41 +0000 (16:46 +0200)]
Bluetooth: Reorder HCI user channel socket release

The hci close method needs to know if we are in user channel context.
Only add the index to mgmt once close is performed.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Fix potential NULL dereference in RFCOMM bind callback
Jaganath Kanakkassery [Thu, 14 May 2015 07:28:08 +0000 (12:58 +0530)]
Bluetooth: Fix potential NULL dereference in RFCOMM bind callback

addr can be NULL and it should not be dereferenced before NULL checking.

Signed-off-by: Jaganath Kanakkassery <jaganath.k@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: hci_uart: Update Broadcom UART setup
Frederic Danis [Thu, 28 May 2015 09:25:05 +0000 (11:25 +0200)]
Bluetooth: hci_uart: Update Broadcom UART setup

Use btbcm helpers to perform controller setup.
Perform host UART reset to init speed between btbcm_patchram() and
btbcm_finalize(). This may be need because firmware loading may have
reseted controller UART to init speed.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: btbcm: Add helper functions for UART setup
Frederic Danis [Thu, 28 May 2015 09:25:04 +0000 (11:25 +0200)]
Bluetooth: btbcm: Add helper functions for UART setup

Firmware loading may reset the controller UART speed and needs to set
host UART speed back to init speed.

UART drivers setup is split in 3 parts:
- btbcm_initialize() resets the controller and returns the firmware
  name based on controller revision and sub_version.
- btbtcm_patchram() (already existing and public), which takes the
  firmware name as parameter, requests the firmware and loads it to
  the controller.
- btbcm_finalize() which resets the controller, reads local version
  and checks if the controller address is a default one or not.

Remove firmware name retrieval for UART controllers from
btbcm_setup_patchram().

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: hci_uart: Support operational speed during setup
Frederic Danis [Thu, 28 May 2015 09:25:03 +0000 (11:25 +0200)]
Bluetooth: hci_uart: Support operational speed during setup

Add initial and operational speeds.
Change to operational speed as soon as possible. If controller
set_baudrate() fails, continue at initial speed.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: btbcm: Add BCM4324B3 UART device
Frederic Danis [Thu, 28 May 2015 09:25:02 +0000 (11:25 +0200)]
Bluetooth: btbcm: Add BCM4324B3 UART device

Add "waiting for configuration" address.
Add lmp_subver and firmware name for BCM4324B3 controller.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: btbcm: Move request/release_firmware()
Frederic Danis [Thu, 28 May 2015 09:25:01 +0000 (11:25 +0200)]
Bluetooth: btbcm: Move request/release_firmware()

Move request/release_firmware() out of btbcm_patchram().
This allows a better error management, if request_firmware() returns an
error then the controller will be used without firmware loading and 0 is
returned.
This will imply to change btbcm_patchram() to accept a firmware instead
of firmware name.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agonl802154: export supported commands
Varka Bhadram [Thu, 4 Jun 2015 07:37:36 +0000 (13:07 +0530)]
nl802154: export supported commands

This patch will export the supported commands by the devices
to the userspace. This will be useful to check if HardMAC
drivers can support a specific command or not.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154: Fix sockaddr_ieee802154 implicit padding information leak.
Lennert Buytenhek [Wed, 3 Jun 2015 07:50:19 +0000 (10:50 +0300)]
ieee802154: Fix sockaddr_ieee802154 implicit padding information leak.

The AF_IEEE802154 sockaddr looks like this:

struct sockaddr_ieee802154 {
sa_family_t family; /* AF_IEEE802154 */
struct ieee802154_addr_sa addr;
};

struct ieee802154_addr_sa {
int addr_type;
u16 pan_id;
union {
u8 hwaddr[IEEE802154_ADDR_LEN];
u16 short_addr;
};
};

On most architectures there will be implicit structure padding here,
in two different places:

* In struct sockaddr_ieee802154, two bytes of padding between 'family'
  (unsigned short) and 'addr', so that 'addr' starts on a four byte
  boundary.

* In struct ieee802154_addr_sa, two bytes at the end of the structure,
  to make the structure 16 bytes.

When calling recvmsg(2) on a PF_IEEE802154 SOCK_DGRAM socket, the
ieee802154 stack constructs a struct sockaddr_ieee802154 on the
kernel stack without clearing these padding fields, and, depending
on the addr_type, between four and ten bytes of uncleared kernel
stack will be copied to userspace.

We can't just insert two 'u16 __pad's in the right places and zero
those before copying an address to userspace, as not all architectures
insert this implicit padding -- from a quick test it seems that avr32,
cris and m68k don't insert this padding, while every other architecture
that I have cross compilers for does insert this padding.

The easiest way to plug the leak is to just memset the whole struct
sockaddr_ieee802154 before filling in the fields we want to fill in,
and that's what this patch does.

Cc: stable@vger.kernel.org
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocfg802154: fix rdev-ops naming convension and format specifiers
Varka Bhadram [Wed, 3 Jun 2015 03:51:47 +0000 (09:21 +0530)]
cfg802154: fix rdev-ops naming convension and format specifiers

This patch make to use the same naming convention that mac802154
tracing follows and fixes the format specifier for extended addr.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: vhci: Clean up coding style fix
Prasanna Karthik [Tue, 2 Jun 2015 10:50:15 +0000 (10:50 +0000)]
Bluetooth: vhci: Clean up coding style fix

Fix spaces required around that '=' reported by checkpatch.

Signed-off-by: Prasanna Karthik <mkarthi3@visteon.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agomac802154: add trace functionality for driver ops
Varka Bhadram [Mon, 1 Jun 2015 08:52:26 +0000 (14:22 +0530)]
mac802154: add trace functionality for driver ops

This patch adds trace events for driver operations.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154: 6lowpan: set ackreq when needed
Alexander Aring [Tue, 2 Jun 2015 13:55:17 +0000 (15:55 +0200)]
ieee802154: 6lowpan: set ackreq when needed

This patch sets the acknowledge request bit inside the 802.15.4 mac
header when frame retries is 0 or above. The other frame retries value
which is -1 indicates that the transmitter doesn't care about an
acknowledge frame which will be ignored after transmitting if the node
sends anyway an ack frame after receiving. This is currently unnecessary
traffic if the max frame retries parameter is -1.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocc2520: update current channel
Varka Bhadram [Fri, 29 May 2015 05:26:58 +0000 (10:56 +0530)]
cc2520: update current channel

This patch updates the current channel to 11. This is the default
value on reset.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocc2520: update initial transmit power value
Varka Bhadram [Fri, 29 May 2015 05:26:57 +0000 (10:56 +0530)]
cc2520: update initial transmit power value

CC2520 has the default 0dBm transmit power level  on reset.
This patch update initial value of transmit power with 0dBm value.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Cc: Brad Campbell <bradjc5@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocc2520: add set transmit power setting support
Varka Bhadram [Fri, 29 May 2015 05:26:56 +0000 (10:56 +0530)]
cc2520: add set transmit power setting support

This patch adds support for seeting tx power values for cc2520
and also for the combination of CC2520-CC2591.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Cc: Brad Campbell <bradjc5@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocc2520: fix CC2591 handling
Varka Bhadram [Fri, 29 May 2015 05:26:55 +0000 (10:56 +0530)]
cc2520: fix CC2591 handling

This patch changes tha way of handling of cc2591-cc2520 combination
by moving amplified variable from platform data to private data.
This will be useful in other sections like tx power support.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Cc: Brad Campbell <bradjc5@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocc2520: fix in default tx power setting
Varka Bhadram [Fri, 29 May 2015 05:26:54 +0000 (10:56 +0530)]
cc2520: fix in default tx power setting

Initially we dont have the tx power settings from the user-space.
Now we have the support for seeting the tx power level.

So lets use the default tx power setting for the radio.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Cc: Brad Campbell <bradjc5@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoMAINTAINERS: Add myself as maintainer for the atusb driver
Stefan Schmidt [Fri, 29 May 2015 08:51:28 +0000 (10:51 +0200)]
MAINTAINERS: Add myself as maintainer for the atusb driver

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154/atusb: Add .set_promiscuous_mode driver operation
Stefan Schmidt [Fri, 29 May 2015 08:51:27 +0000 (10:51 +0200)]
ieee802154/atusb: Add .set_promiscuous_mode driver operation

Allow monitor mode operation with disabled AACK in hardware.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154/atusb: Add .set_txpower operation to the driver
Stefan Schmidt [Fri, 29 May 2015 08:51:26 +0000 (10:51 +0200)]
ieee802154/atusb: Add .set_txpower operation to the driver

Atusb uses the at86rf231 transceiver so we can use the same calculation
for txpower settings for it.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154/atusb: Add function for partial register writes
Stefan Schmidt [Fri, 29 May 2015 08:51:25 +0000 (10:51 +0200)]
ieee802154/atusb: Add function for partial register writes

With this function we can set individual bits in the registers if needed.
With the old SR_VALUE macro we could only set one bit in the register
which was ok for some scenarios but not for all. With this subreg write
function we can now set more bits defined by the mask while not touching
the rest.

We start using it for the current SR_VALUE use case and will use it more
in upcoming patches.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154: Fix EUI-64 station address validation.
Lennert Buytenhek [Thu, 28 May 2015 12:38:43 +0000 (15:38 +0300)]
ieee802154: Fix EUI-64 station address validation.

Refuse to allow setting an EUI-64 group address as an interface
address, as those are not valid station addresses.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154: Fix generation of random EUI-64 addresses.
Lennert Buytenhek [Thu, 28 May 2015 12:38:32 +0000 (15:38 +0300)]
ieee802154: Fix generation of random EUI-64 addresses.

Currently, ieee802154_random_extended_addr() has a 50% chance of
generating a group (multicast) address, while this function is used
for generating station addresses (which can't be group addresses)
for interfaces that don't have a hardware-provided address.

Also, in case get_random_bytes() generates the EUI-64 address
00:00:00:00:00:00:00:00 (extremely unlikely), which is an invalid
address, ieee802154_random_extended_addr() reacts by changing it
to 01:00:00:00:00:00:00:00, which is an invalid station address as
well, as it is a group address.

This patch changes the address generation procedure to grab eight
random bytes, treat that as an EUI-64, and then clear the Group
address bit and set the Locally Administered bit, which is in
line with how eth_random_addr() generates random EUI-48s.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoMerge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
David S. Miller [Sun, 31 May 2015 08:07:06 +0000 (01:07 -0700)]
Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge

Antonio Quartulli says:

====================
Included changes:
- checkpatch fixes
- code cleanup
- debugfs component is now compiled only if DEBUG_FS is selected
- update copyright years
- disable by default not-so-user-safe features
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agobpf: add missing rcu protection when releasing programs from prog_array
Alexei Starovoitov [Fri, 29 May 2015 02:26:02 +0000 (19:26 -0700)]
bpf: add missing rcu protection when releasing programs from prog_array

Normally the program attachment place (like sockets, qdiscs) takes
care of rcu protection and calls bpf_prog_put() after a grace period.
The programs stored inside prog_array may not be attached anywhere,
so prog_array needs to take care of preserving rcu protection.
Otherwise bpf_tail_call() will race with bpf_prog_put().
To solve that introduce bpf_prog_put_rcu() helper function and use
it in 3 places where unattached program can decrement refcnt:
closing program fd, deleting/replacing program in prog_array.

Fixes: 04fd61ab36ec ("bpf: allow bpf programs to tail-call other bpf programs")
Reported-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'hv_netvsc-next'
David S. Miller [Sun, 31 May 2015 07:23:11 +0000 (00:23 -0700)]
Merge branch 'hv_netvsc-next'

K. Y. Srinivasan says:

====================
hv_netvsc: Implement NUMA aware memory allocation

Allocate both receive buffer and send buffer from the NUMA node assigned to the
primary channel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agohv_netvsc: Allocate the sendbuf in a NUMA aware way
K. Y. Srinivasan [Fri, 29 May 2015 00:08:07 +0000 (17:08 -0700)]
hv_netvsc: Allocate the sendbuf in a NUMA aware way

Allocate the send buffer in a NUMA aware way.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agohv_netvsc: Allocate the receive buffer from the correct NUMA node
K. Y. Srinivasan [Fri, 29 May 2015 00:08:06 +0000 (17:08 -0700)]
hv_netvsc: Allocate the receive buffer from the correct NUMA node

Allocate the receive bufer from the NUMA node assigned to the primary
channel.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonetevent: remove automatic variable in register_netevent_notifier()
Wang Long [Fri, 29 May 2015 01:02:08 +0000 (01:02 +0000)]
netevent: remove automatic variable in register_netevent_notifier()

Remove automatic variable 'err' in register_netevent_notifier() and
return the result of atomic_notifier_chain_register() directly.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
David S. Miller [Sun, 31 May 2015 07:02:30 +0000 (00:02 -0700)]
Merge git://git./linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for net-next, they are:

1) default CONFIG_NETFILTER_INGRESS to y for easier compile-testing of all
   options.

2) Allow to bind a table to net_device. This introduces the internal
   NFT_AF_NEEDS_DEV flag to perform a mandatory check for this binding.
   This is required by the next patch.

3) Add the 'netdev' table family, this new table allows you to create ingress
   filter basechains. This provides access to the existing nf_tables features
   from ingress.

4) Kill unused argument from compat_find_calc_{match,target} in ip_tables
   and ip6_tables, from Florian Westphal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'systemport-next'
David S. Miller [Sun, 31 May 2015 06:51:37 +0000 (23:51 -0700)]
Merge branch 'systemport-next'

Florian Fainelli says:

====================
net: systemport: misc improvements

These patches are highly inspired by changes from Petri on bcmgenet, last patch
is a misc fix that I had pending for a while, but is not a candidate for 'net'
at this point.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: systemport: Add a check for oversized packets
Florian Fainelli [Thu, 28 May 2015 22:24:44 +0000 (15:24 -0700)]
net: systemport: Add a check for oversized packets

Occasionnaly we may get oversized packets from the hardware which exceed
the nomimal 2KiB buffer size we allocate SKBs with. Add an early check
which drops the packet to avoid invoking skb_over_panic() and move on to
processing the next packet.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: systemport: rewrite bcm_sysport_rx_refill
Florian Fainelli [Thu, 28 May 2015 22:24:43 +0000 (15:24 -0700)]
net: systemport: rewrite bcm_sysport_rx_refill

Currently, bcm_sysport_desc_rx() calls bcm_sysport_rx_refill() at the end of Rx
packet processing loop, after the current Rx packet has already been passed to
napi_gro_receive(). However, bcm_sysport_rx_refill() might fail to allocate a new
Rx skb, thus leaving a hole on the Rx queue where no valid Rx buffer exists.

To eliminate this situation:

1. Rewrite bcm_sysport_rx_refill() to retain the current Rx skb on the
Rx queue if a new replacement Rx skb can't be allocated and DMA-mapped.
In this case, the data on the current Rx skb is effectively dropped.

2. Modify bcm_sysport_desc_rx() to call bcm_sysport_rx_refill() at the
top of Rx packet processing loop, so that the new replacement Rx skb is
already in place before the current Rx skb is processed.

This is loosely inspired from d6707bec5986 ("net: bcmgenet: rewrite
bcmgenet_rx_refill()")

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: systemport: Pre-calculate and utilize cb->bd_addr
Florian Fainelli [Thu, 28 May 2015 22:24:42 +0000 (15:24 -0700)]
net: systemport: Pre-calculate and utilize cb->bd_addr

There is a 1:1 mapping between the software maintained control block in
priv->rx_cbs and the buffer address in priv->rx_bds, such that there is
no need to keep computing the buffer address when refiling a control
block.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoipv6: drop unneeded goto
Julia Lawall [Thu, 28 May 2015 21:02:17 +0000 (23:02 +0200)]
ipv6: drop unneeded goto

Delete jump to a label on the next line, when that label is not
used elsewhere.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier l;
@@

-if (...) goto l;
-l:
// </smpl>

Also remove the unnecessary ret variable.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: thunderx: add 64-bit dependency
Arnd Bergmann [Thu, 28 May 2015 14:00:46 +0000 (16:00 +0200)]
net: thunderx: add 64-bit dependency

The thunderx ethernet driver fails to build on architectures
that do not have an atomic readq() and writeq() function for
64-bit PCI bus access:

drivers/net/ethernet/cavium/thunder/thunder_bgx.c: In function 'bgx_reg_read':
include/asm-generic/io.h:195:23: error: implicit declaration of function 'readq' [-Werror=implicit-function-declaration]

It seems impossible to get this driver to work on most 32-bit
hardware, so it's better to add an explicit dependency, in
order to let us keep building 'allmodconfig' kernels on
all architectures.

As the driver is meant for the internal hardware on an arm64 SoC, this
is not a problem for usability. Allowing the build on all 64-bit
architectures rather than just CONFIG_ARM64 on the other hand means that
we get the benefit of build testing on x86.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'mlx4-next'
David S. Miller [Sun, 31 May 2015 06:35:35 +0000 (23:35 -0700)]
Merge branch 'mlx4-next'

Or Gerlitz says:

====================
mlx4 driver update, May 28, 2015

The 1st patch fixes an issue with a function running DPDK overriding
broadcast steering rules set by other functions. Please add this one
to your -stable queue.

The rest of the series from Matan and Ido deals with scaling the number
of IRQs that serve RoCE applications to be in par with the Ethernet driver.

changes from V0:
 - addressed feedback from Sergei, removed extra blank line in patch #4
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Make sure there are no pending async events when freeing CQ
Matan Barak [Sun, 31 May 2015 06:30:18 +0000 (09:30 +0300)]
net/mlx4_core: Make sure there are no pending async events when freeing CQ

When freeing a CQ, we need to make sure there are no
asynchronous events (on the ASYNC EQ) that could
relate to this CQ before freeing it.

This is done by introducing synchronize_irq.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Move affinity hints to mlx4_core ownership
Ido Shamay [Sun, 31 May 2015 06:30:17 +0000 (09:30 +0300)]
net/mlx4_core: Move affinity hints to mlx4_core ownership

Now that EQs management is in the sole responsibility of mlx4_core,
the IRQ affinity hints configuration should be in its hands as well.
request_irq is called only once by the first consumer (maybe mlx4_ib),
so mlx4_en passes the affinity mask too late. We also need to request
vectors according to the cores we want to run on.

mlx4_core distribution of IRQs to cores is straight forward,
EQ(i)->IRQ will set affinity hint to core i.
Consumers need to request EQ vectors, according to their cores
considerations (NUMA).

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4: Add EQ pool
Matan Barak [Sun, 31 May 2015 06:30:16 +0000 (09:30 +0300)]
net/mlx4: Add EQ pool

Previously, mlx4_en allocated EQs and used them exclusively.
This affected RoCE performance, as applications which are
events sensitive were limited to use only the legacy EQs.

Change that by introducing an EQ pool. This pool is managed
by mlx4_core. EQs are assigned to ports (when there are limited
number of EQs, multiple ports could be assigned to the same EQs).

An exception to this rule is the ASYNC EQ which handles various events.

Legacy EQs are completely removed as all EQs could be shared.

When a consumer (mlx4_ib/mlx4_en) requests an EQ, it asks for
EQ serving on a specific port. The core driver calculates which
EQ should be assigned to that request.

Because IRQs are shared between IB and Ethernet modules, their
names only include the PCI device BDF address.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Demote simple multicast and broadcast flow steering rules
Matan Barak [Sun, 31 May 2015 06:30:15 +0000 (09:30 +0300)]
net/mlx4_core: Demote simple multicast and broadcast flow steering rules

In SRIOV, when simple (i.e - Ethernet L2 only) flow steering rules are
created, always create them at MLX4_DOMAIN_NIC priority (instead of
the real priority the function created them at). This is done in order
to let multiple functions add broadcast/multicast rules without
affecting other functions, which is necessary for DPDK in SRIOV.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
David S. Miller [Sun, 31 May 2015 06:26:45 +0000 (23:26 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2015-05-28

Here's a set of patches intended for 4.2. The majority of the changes
are on the 802.15.4 side of things rather than Bluetooth related:

 - All sorts of cleanups & fixes to ieee802154 and related drivers
 - Rework of tx power support in ieee802154 and its drivers
 - Support for setting ieee802154 tx power through nl802154
 - New IDs for the btusb driver
 - Various cleanups & smaller fixes to btusb
 - New btrtl driver for Realtec devices
 - Fix suspend/resume for Realtek devices

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'mlx5-next'
David S. Miller [Sun, 31 May 2015 01:25:03 +0000 (18:25 -0700)]
Merge branch 'mlx5-next'

Amir Vadai says:

====================
net/mlx5: ConnectX-4 100G Ethernet driver

This patchset extends the mlx5_core driver to support Ethernet
functionality. The Ethernet functionality in the mlx5 driver is
integrated into the core driver and not as separated driver. The
IB functionality remains in the mlx5_ib driver as before.

This functionality will enable the Ethernet capability of Mellanox's new
famility of cards - ConnectX-4. Due to the fact that backword
compatability is being kept, existing Connect-IB cards that are using
this driver are fully working with the modified driver, and no issues
with current deployments should be seen.

Like the ConnectX-3 cards, ConnectX-4 is a VPI (Virtual Port Interface -
every port can be configured as Infiniband or Ethernet) card.
Unlike previous generations, the ConnectX-4 has a separate PCI function
per port.

The current code has a limitation that Infiniband and Ethernet port types
are mutually exclusive. When the driver is compiled with Ethernet
support, the Infiniband functionality is disabled and vice versa. To
control that we added the CONFIG_MLX5_CORE_EN config directive
which is 'n' by default, but can be changed by the user.

This limitation is short-lived and would be addressed soon.

As part of this patchset, mlx5_ifc.h was heavily modified [1]. This file
is now generated automatically from the device specification document.
Since this patch is too big for the mail server, it might be missing in
the mailing list, but could be pulled from an external git repository [2].

irq name selection is done at driver initialization and doesn't contain the
interface name as part of the irq name.
irq_balancer will still work thanks to an improvement introduced by Neil Horman
[3] to use sysfs instead of /proc/interrupts.

Patchset was applied on top of commit ed2dfd9 ("tcp/dccp: warn user for
preferred ip_local_port_range")

[1] - Patch 4/11 ("net/mlx5_core: HW data structs/types definitions preparation for mlx5 ehternet driver")
[2] - http://git.openfabrics.org/?p=~amirv/linux.git;a=shortlog;h=refs/heads/mlx5e_v1
[3] - kernel: da8d1c8 PCI/sysfs: add per pci device msi[x] irq listing (v5)
      irq_balancer: 32a7757 Complete rework of how we detect and classify irqs

Thanks to Achiad, Saeed, Yevheny, Or and the whole team for making this happen,
Amir

Changes from V4:
- Removed Patch 3/12: net/mlx5_core: Add EQ renaming mechanism
- Patch 12/12: net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality
  - irq name is created on driver initialization, therefore it won't contain
    the network interface name in it. This won't effect irq_balancer thanks to
    patches introduced by Neil Horman to use sysfs instead of /proc/interrupts.

Changes from V3:
- PATCH 8/11: net/mlx5_core: Set/Query port MTU commands
  - Return value directly - no need for err.

Changes from V2:
- Improved changelogs and cover-letter
- Added CONFIG_MLX5_EN to disable/enable the Ethernet functionality
- Moved en.h and wq.[ch] into the patch with data-path related code

Changes from V1:
- Added patch 1/12 ("net/mlx5_core,mlx5_ib: Do not use vmap() on coherent
  memory")

Changes from V0:
- Removed V0 Patch 1/11 ("net/mlx5_core: Virtually extend work/completion queue
  buffers by one page") due to misuse of DMA API. Thanks Dave.
- Patch 1/11 ("net/mlx5_core: Set irq affinity hints"):
  - Use kcalloc instead of kzalloc
  - Fix build error when CONFIG_CPUMASK_OFFSTACK=n. Driver loading will fail
    now if cpumask allocation is failing.
  - Using dev_to_node helper. Thanks, Ido.
- Patch 3/11 ("net/mlx5_core: HW data structs/types definitions preparation for
  mlx5 ehternet driver")
  - Removed Mellanox internal comment at the head of the file. Thanks Joe
- Patch 6/11 ("net/mlx5_core: Implement get/set port status")
  - Use direct return of function's result. Thanks Sergei.
- Added Patch 8/11 ("net/mlx5_core: Set/Query port MTU commands")
- Patch 9/11 ("net/mlx5: Ethernet Datapath files")
  - Use rq->wqe_sz instead of skb_end_offset. Thanks Ido.
  - Use dma_wmb() when possible instead of wmb(). Thanks Alex.
  - Fix checkpatch issues
- Patch 10/11 ("net/mlx5: ethernet resources handling")
  - checkpatch issues
  - Added missing include
- Patch 11/11 ("net/mlx5: Ethernet driver")
  - checkpatch issues
  - fixed typo
  - Modified use of affinity hint
  - Using dev_to_node helper. Thanks, Ido.
  - Use new hardware commands from Patch 8/11 ("net/mlx5_core: Set/Query port
    MTU commands") to get/set port MTU in hardware.
  - Removed NETIF_F_SG since hardware ring wraparound is not supported
  - Use dma_wmb() when possible instead of wmb(). Thanks Alex.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality
Amir Vadai [Thu, 28 May 2015 19:28:48 +0000 (22:28 +0300)]
net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality

This is the Ethernet part of the driver for the Mellanox ConnectX(R)-4
Single/Dual-Port Adapter supporting 100Gb/s with VPI.  The driver
extends the existing mlx5 driver with Ethernet functionality.

This patch contains the driver entry points but does not include
transmit and receive (see the previous patch in the series) routines.

It also adds the option MLX5_CORE_EN to Kconfig to enable/disable the
Ethernet functionality. Currently, Kconfig is programmed to make
Ethernet and Infiniband functionality mutally exclusive.
Also changed MLX5_INFINIBAND to be depandant on MLX5_CORE instead of
selecting it, since MLX5_CORE could be selected without MLX5_INFINIBAND
being selected.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5: Ethernet resource handling files
Amir Vadai [Thu, 28 May 2015 19:28:47 +0000 (22:28 +0300)]
net/mlx5: Ethernet resource handling files

This patch contains the resource handling files:
- flow_table.c: This file contains the code to handle the low level API
to configure hardware flow table. It is separated from
the flow_table_en.c, because it will be used in the
future by Raw Ethernet QP in mlx5_ib too.
- en_flow_table.[ch]: Ethernet flow steering handling. The flow table
object contain a mapping between flow specs and TIRs.
This mechanism will be used also to configure e-switch
in the future, when SR-IOV support will be added.
- transobj.[ch] - Low level functions to create/modify/destroy the
                  transport objects: RQ/SQ/TIR/TIS
- vport.[ch] - Handle attributes of a virtual port (vPort) in the
  embedded switch. Currently this switch is a passthrough, until SR-IOV
  support will be added.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5: Ethernet Datapath files
Amir Vadai [Thu, 28 May 2015 19:28:46 +0000 (22:28 +0300)]
net/mlx5: Ethernet Datapath files

en_[rt]x.c contains the data path related code specific to tx or rx.
en_txrx.c contains data path code which is common for both the rx and
tx, this is mainly napi related code.

Below are the objects that are being used by the hardware and the driver
in the data path:

Channel - one channel per IRQ. Every channel object contains:
  RQ  - describes the rx queue
  TIR - One TIR (Transport Interface Receive) object per flow type. TIR
        contains attributes for a type of rx flow (e.g IPv4, IPv6 etc).
        A flow is defined in the Flow Table.
        Currently TIR describes the RSS hash parameters if exists and LRO
        attributes.
  SQ  - describes the a tx queue. There is one SQ (Send Queue) per
        TC (traffic class).
  TIS - There is one TIS (Transport Interface Send) per TC.  It
        describes the TC and may later be extended to describe more
transport properties.

Both RQ and SQ inherit from the object WQ (work queue). This common code
to describe the layout of CQE's WQE's in memory is in the files wq.[cj]

For every channel there is one NAPI context that is used for RX and
for TX.

Driver is using netdev_alloc_skb() to allocate skb's.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: Set/Query port MTU commands
Saeed Mahameed [Thu, 28 May 2015 19:28:45 +0000 (22:28 +0300)]
net/mlx5_core: Set/Query port MTU commands

Introduce set/Query low level functions to access MTU in hardware. To be
used by the netdev.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: Modify CQ moderation parameters
Rana Shahout [Thu, 28 May 2015 19:28:44 +0000 (22:28 +0300)]
net/mlx5_core: Modify CQ moderation parameters

Introduce mlx5_core_modify_cq_moderation() to be used by the netdev, to
set hardware coalescing.

Signed-off-by: Rana Shahout <ranas@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: Implement get/set port status
Rana Shahout [Thu, 28 May 2015 19:28:43 +0000 (22:28 +0300)]
net/mlx5_core: Implement get/set port status

Implemet get/set port status low level functions to be exposed by the
netdev.

Signed-off-by: Rana Shahout <ranas@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: Implement access functions of ptys register fields
Saeed Mahameed [Thu, 28 May 2015 19:28:42 +0000 (22:28 +0300)]
net/mlx5_core: Implement access functions of ptys register fields

Those registers will be used by the ethtool to set/get settings.

Signed-off-by: Rana Shahout <ranas@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: New device capabilities handling
Saeed Mahameed [Thu, 28 May 2015 19:28:41 +0000 (22:28 +0300)]
net/mlx5_core: New device capabilities handling

- Query all supported types of dev caps on driver load.
- Store the Cap data outbox per cap type into driver private data.
- Introduce new Macros to access/dump stored caps (using the auto
  generated data types).
- Obsolete SW representation of dev caps (no need for SW copy for each
  cap).
- Modify IB driver to use new macros for checking caps.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: HW data structs/types definitions cleanup
Saeed Mahameed [Thu, 28 May 2015 19:28:40 +0000 (22:28 +0300)]
net/mlx5_core: HW data structs/types definitions cleanup

mlx5_ifc.h was heavily modified here since it is now generated by a
script from the device specification (PRM rev 0.25). This specification
is backward compatible to existing hardware.

Some structures/fields were added here in order to enable the Ethernet
functionality of the driver.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core: Set irq affinity hints
Saeed Mahameed [Thu, 28 May 2015 19:28:39 +0000 (22:28 +0300)]
net/mlx5_core: Set irq affinity hints

Preparation for upcoming ethernet driver.
- Move msix array from eq_table struct to priv since its not related to
  eq_table
- Intorduce irq_info struct to hold all irq information
- Move name from mlx5_eq to irq_info struct since it is irq property.
- Set IRQ affinity hints

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Rana Shahout <ranas@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx5_core,mlx5_ib: Do not use vmap() on coherent memory
Amir Vadai [Thu, 28 May 2015 19:28:38 +0000 (22:28 +0300)]
net/mlx5_core,mlx5_ib: Do not use vmap() on coherent memory

As David Daney pointed in mlx4_core driver [1], mlx5_core is also
misusing the DMA-API.

This patch is removing the code that vmap() memory allocated by
dma_alloc_coherent().

After this patch, users of this drivers might fail allocating resources
on memory fragmeneted systems.  This will be fixed later on.

[1] - https://patchwork.ozlabs.org/patch/458531/

CC: David Daney <david.daney@cavium.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Sun, 31 May 2015 01:09:58 +0000 (18:09 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-05-28

This series contains updates to ethtool, ixgbe, i40e and i40evf.

John adds helper routines for ethtool to pass VF to rx_flow_spec.  Since
the ring_cookie is 64 bits wide which is much larger than what could be
used for actual queue index values, provide helper routines to pack a VF
index into the cookie.  Then John provides a ixgbe patch to allow flow
director to use the entire queue space.

Neerav provides a i40e patch to collect XOFF Rx stats, where it was not
being collected before.

Anjali provides ATR support for tunneled packets, as well as stats to
count tunnel ATR hits.  Cleaned up PF struct members which are
unnecessary, since we can use the stat index macro directly.  Cleaned
up flow director ATR/SB messages to a higher debug level since they
are not useful unless silicon validation is happening.

Greg provides a patch to disable offline diagnostics if VFs are enabled
since ethtool offline diagnostic tests are not designed (out of scope)
to disable VF functions for testing and re-enable afterward.  Also cleans
up TODO comment that is no longer needed.

Vasu provides a fix an FCoE EOF case where i40e_fcoe_ctxt_eof() maybe
called before i40e_fcoe_eof_is_supported() is called.

Jesse adds skb->xmit_more support for i40evf.  Then provides a performance
enhancement for i40evf by inlining some functions which provides a 15%
gain in small packet performance.  Also cleans up the use of time_stamp
since it is no longer used to determine if there is a tx_hang and was
a part of a previous tx_hang design which is no longer used.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agotipc: unconditionally put sock refcnt when sock timer to be deleted is pending
Ying Xue [Thu, 28 May 2015 05:19:22 +0000 (13:19 +0800)]
tipc: unconditionally put sock refcnt when sock timer to be deleted is pending

As sock refcnt is taken when sock timer is started in
sk_reset_timer(), the sock refcnt should be put when sock timer
to be deleted is in pending state no matter what "probing_state"
value of tipc sock is.

Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoif_vlan: fix vlaue -> value typo
Vivien Didelot [Thu, 28 May 2015 01:07:26 +0000 (21:07 -0400)]
if_vlan: fix vlaue -> value typo

Fixes "vlaue" for "value" in include/linux/if_vlan.h.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agobpf: allow BPF programs access skb->skb_iif and skb->dev->ifindex fields
Alexei Starovoitov [Wed, 27 May 2015 22:30:39 +0000 (15:30 -0700)]
bpf: allow BPF programs access skb->skb_iif and skb->dev->ifindex fields

classic BPF already exposes skb->dev->ifindex via SKF_AD_IFINDEX extension.
Allow eBPF program to access it as well. Note that classic aborts execution
of the program if 'skb->dev == NULL' (which is inconvenient for program
writers), whereas eBPF returns zero in such case.
Also expose the 'skb_iif' field, since programs triggered by redirected
packet need to known the original interface index.
Summary:
__skb->ifindex         -> skb->dev->ifindex
__skb->ingress_ifindex -> skb->skb_iif

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agohv_netvsc: Properly size the vrss queues
KY Srinivasan [Wed, 27 May 2015 20:16:57 +0000 (13:16 -0700)]
hv_netvsc: Properly size the vrss queues

The current algorithm for deciding on the number of VRSS channels is
not optimal since we open up the min of number of CPUs online and the
number of VRSS channels the host is offering. So on a 32 VCPU guest
we could potentially open 32 VRSS subchannels. Experimentation has
shown that it is best to limit the number of VRSS channels to the number
of CPUs within a NUMA node.

Here is the new algorithm for deciding on the number of sub-channels we
would open up:
        1) Pick the minimum of what the host is offering and what the driver
           in the guest is specifying as the default value.
        2) Pick the minimum of (1) and the numbers of CPUs in the NUMA
           node the primary channel is bound to.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN
Sorin Dumitru [Wed, 27 May 2015 19:16:49 +0000 (22:16 +0300)]
net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN

This is similar to b1cb59cf2efe(net: sysctl_net_core: check SNDBUF
and RCVBUF for min length). I don't think too small values can cause
crashes in the case of udp and tcp, but I've seen this set to too
small values which triggered awful performance. It also makes the
setting consistent across all the wmem/rmem sysctls.

Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'stmmac-IPQ806x'
David S. Miller [Sun, 31 May 2015 00:04:44 +0000 (17:04 -0700)]
Merge branch 'stmmac-IPQ806x'

Mathieu Olivari says:

====================
Add support for QCA IPQ806x Ethernet GMAC controller

This patch set adds support for the integrated Ethernet GMAC controller
on QCA IPQ806x SoC. This controller is based on a Gigabit Synopsys
DesignWare IP, already supported in the stmmac driver located in
drivers/net/ethernet/stmicro/stmmac.

This change is done as a follow-up to the following thread:
*http://www.spinics.net/lists/netdev/msg311265.html
While previous attempt was creating a new driver to drive this controller,
this new post leverages the existing stmmac driver by implementing the
SoC specific glue to it.

Aside from the pure stmmac glue layer, we have a couple of related
patches:
*IPQ806x NSS clock addition is cherry-picked and refreshed from the
 following thread: https://lkml.org/lkml/2014/8/6/390
*phy-handle and fixed-link support are also added in this change set so the
 driver can be fully functional on platforms using device-trees as well as
 ethernet switches.

V2:
 *Fix MODULE_LICENSE to "Dual BSD/GPL" as the dwmac-ipq806x.c is using
  ISC license.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>