GitHub/moto-9609/android_kernel_motorola_exynos9610.git
7 years agonfc: fix get_unaligned_...() misuses
Al Viro [Sun, 16 Apr 2017 22:42:22 +0000 (00:42 +0200)]
nfc: fix get_unaligned_...() misuses

* if a local variable of type uint16_t is unaligned, your compiler is FUBAR
* the whole point of get_unaligned_... is to avoid memcpy + ..._to_cpu().
  Using it *after* memcpy() (into aligned object, no less) is pointless.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn533: use constant off-stack buffer for sending acks
Michał Mirosław [Thu, 6 Apr 2017 03:49:02 +0000 (05:49 +0200)]
NFC: pn533: use constant off-stack buffer for sending acks

fix for WARN:

usb 3-2.4.1: NFC: Exchanging data failed (error 0x13)
llcp: nfc_llcp_recv: err -5
llcp: nfc_llcp_symm_timer: SYMM timeout
------------[ cut here ]------------
WARNING: CPU: 1 PID: 26397 at .../drivers/usb/core/hcd.c:1584 usb_hcd_map_urb_for_dma+0x370/0x550
transfer buffer not dma capable
[...]
Workqueue: events nfc_llcp_timeout_work [nfc]
Call Trace:
 ? dump_stack+0x46/0x5a
 ? __warn+0xb9/0xe0
 ? warn_slowpath_fmt+0x5a/0x80
 ? usb_hcd_map_urb_for_dma+0x370/0x550
 ? usb_hcd_submit_urb+0x2fb/0xa60
 ? dequeue_entity+0x3f2/0xc30
 ? pn533_usb_send_ack+0x5d/0x80 [pn533_usb]
 ? pn533_usb_abort_cmd+0x13/0x20 [pn533_usb]
 ? pn533_dep_link_down+0x32/0x70 [pn533]
 ? nfc_dep_link_down+0x87/0xd0 [nfc]
[...]
usb 3-2.4.1: NFC: Exchanging data failed (error 0x13)
llcp: nfc_llcp_recv: err -5
llcp: nfc_llcp_symm_timer: SYMM timeout

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: trf7970a: Add device tree option of 1.8 Volt IO voltage
Geoff Lansberry [Thu, 22 Dec 2016 04:18:33 +0000 (23:18 -0500)]
NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage

The TRF7970A has configuration options for supporting hardware designs
with 1.8 Volt or 3.3 Volt IO.   This commit adds a device tree option,
using a fixed regulator binding, for setting the io voltage to match
the hardware configuration. If no option is supplied it defaults to
3.3 volt configuration.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Geoff Lansberry <geoff@kuvee.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: trf7970a: add device tree option for 27MHz clock
Geoff Lansberry [Thu, 22 Dec 2016 04:18:32 +0000 (23:18 -0500)]
NFC: trf7970a: add device tree option for 27MHz clock

The TRF7970A has configuration options to support hardware designs
which use a 27.12MHz clock. This commit adds a device tree option
'clock-frequency' to support configuring the this chip for default
13.56MHz clock or the optional 27.12MHz clock.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Geoff Lansberry <geoff@kuvee.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: Add nfc_dbg() macro
Andy Shevchenko [Wed, 22 Mar 2017 19:22:51 +0000 (21:22 +0200)]
NFC: Add nfc_dbg() macro

In some cases nfc_dbg() is useful. Add such macro to a header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: netlink: Use error code from nfc_activate_target()
Andy Shevchenko [Wed, 22 Mar 2017 19:20:58 +0000 (21:20 +0200)]
NFC: netlink: Use error code from nfc_activate_target()

It looks like a typo to assign a return code to a variable which is not
used. Found due to a compiler warning:

net/nfc/netlink.c: In function ‘nfc_genl_activate_target’:
net/nfc/netlink.c:903:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
  int rc;
        ^~

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: st21nfca: Use unified device property API meaningfully
Andy Shevchenko [Tue, 7 Mar 2017 10:25:46 +0000 (12:25 +0200)]
NFC: st21nfca: Use unified device property API meaningfully

Another place in the code that unveils non-tested at all ACPI case.

Use unified device property API in meaningful way.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: st21nfca: Covert to use GPIO descriptor
Andy Shevchenko [Tue, 7 Mar 2017 10:25:45 +0000 (12:25 +0200)]
NFC: st21nfca: Covert to use GPIO descriptor

Since we got rid of platform data, the driver may use GPIO descriptor
directly.

Looking deeply to the use of the GPIO pin it looks like it should be
a fixed voltage regulator rather than custom GPIO handling. But this
is out of scope of the change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: st21nfca: Get rid of "interesting" use of interrupt polarity
Andy Shevchenko [Tue, 7 Mar 2017 10:25:44 +0000 (12:25 +0200)]
NFC: st21nfca: Get rid of "interesting" use of interrupt polarity

I2C framework followed by IRQ framework does set interrupt polarity
correctly if it's properly specified in firmware (ACPI or DT).

Get rid of the redundant trick when requesting interrupt.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: st21nfca: Get rid of platform data
Andy Shevchenko [Tue, 7 Mar 2017 10:25:43 +0000 (12:25 +0200)]
NFC: st21nfca: Get rid of platform data

Legacy platform data must go away. We are on the safe side here since
there are no users of it in the kernel.

If anyone by any odd reason needs it the GPIO lookup tables and
built-in device properties at your service.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: st21nfca: Fix obvious typo when check error code
Andy Shevchenko [Tue, 7 Mar 2017 10:25:42 +0000 (12:25 +0200)]
NFC: st21nfca: Fix obvious typo when check error code

We return -ENODEV if ACPI provides a GPIO resource. Looks really wrong.
If it has even been tested?

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn544: Get rid of code duplication in ->probe()
Andy Shevchenko [Tue, 28 Mar 2017 09:36:39 +0000 (12:36 +0300)]
NFC: pn544: Get rid of code duplication in ->probe()

Since OF and ACPI case almost the same get rid of code duplication
by moving gpiod_get() calls directly to ->probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn544: Add GPIO ACPI mapping table
Andy Shevchenko [Tue, 28 Mar 2017 09:36:38 +0000 (12:36 +0300)]
NFC: pn544: Add GPIO ACPI mapping table

In order to make GPIO ACPI library stricter prepare users of
gpiod_get_index() to correctly behave when there no mapping is
provided by firmware.

Here we add explicit mapping between _CRS GpioIo() resources and
their names used in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn544: Convert to use devm_request_threaded_irq()
Andy Shevchenko [Tue, 28 Mar 2017 09:36:37 +0000 (12:36 +0300)]
NFC: pn544: Convert to use devm_request_threaded_irq()

The error handling will be neat and short when using managed resources.

Convert the driver to use devm_request_threaded_irq().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn544: Convert to use GPIO descriptor
Andy Shevchenko [Tue, 28 Mar 2017 09:36:36 +0000 (12:36 +0300)]
NFC: pn544: Convert to use GPIO descriptor

Since we got rid of platform data, the driver may use
GPIO descriptor directly.

This change fixes a potential issue of double freeing GPIOs in ACPI
case by converting to devm_gpiod_get().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn544: Get rid of platform data
Andy Shevchenko [Tue, 28 Mar 2017 09:36:35 +0000 (12:36 +0300)]
NFC: pn544: Get rid of platform data

Legacy platform data must go away. We are on the safe side here since
there are no users of it in the kernel.

If anyone by any odd reason needs it the GPIO lookup tables and
built-in device properties at your service.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoMAINTAINERS: Remove Lauro and Aloisio from the NFC maintainers list
Samuel Ortiz [Sat, 1 Apr 2017 23:07:53 +0000 (01:07 +0200)]
MAINTAINERS: Remove Lauro and Aloisio from the NFC maintainers list

They are no longer active and their email addresses bounce.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn533: change order operations in dev registation
Andrey Rusalin [Wed, 28 Dec 2016 17:10:59 +0000 (20:10 +0300)]
NFC: pn533: change order operations in dev registation

Sometimes during probing and registration of pn533_i2c
NULL pointer dereference happens.
Reproduced in cycle of inserting and removing pn533_i2c
and pn533 modules.

Backtrace:
[<8004205c>] (__queue_work) from [<80042324>] (queue_work_on+0x50/0x5c)
r10:acdc7c80 r9:8006b330 r8:ac0dfb40 r7:ac50c600 r6:00000004 r5:acbbee40 r4:600f0113
[<800422d4>] (queue_work_on) from [<7f7d5b6c>] (pn533_recv_frame+0x158/0x1fc [pn533])
r7:ffffff87 r6:00000000 r5:acbbee40 r4:acbbee00
[<7f7d5a14>] (pn533_recv_frame [pn533]) from [<7f7df4b8>] (pn533_i2c_irq_thread_fn+0x184/0x)
r6:acb2a000 r5:00000000 r4:acdc7b90
[<7f7df334>] (pn533_i2c_irq_thread_fn [pn533_i2c]) from [<8006b354>] (irq_thread_fn+0x24/0x)
r7:00000000 r6:accde000 r5:ac0dfb40 r4:acdc7c80
...

Seems there is some race condition due registration of
irq handler until all data stuctures that could be needed
are ready. So I re-ordered some ops. After this, problem has gone.

Changes in USB part was not tested, but it should not break
anything.

Signed-off-by: Andrey Rusalin <arusalin@dev.rtsoft.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn533: improve cmd queue handling
Andrey Rusalin [Wed, 28 Dec 2016 17:10:58 +0000 (20:10 +0300)]
NFC: pn533: improve cmd queue handling

Make sure cmd is set before a frame is passed to the transport layer for
sending. In addition pn533_send_async_complete checks if cmd is set before
accessing its members.

Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at>
Rework a little bit changes in pn532_send_async_complete.

Signed-off-by: Andrey Rusalin <arusalin@dev.rtsoft.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: pn533: change order of free_irq and dev unregistration
Andrey Rusalin [Wed, 28 Dec 2016 17:10:57 +0000 (20:10 +0300)]
NFC: pn533: change order of free_irq and dev unregistration

Change order of free_irq and dev unregistration.
It fixes situation when device already unregistered and
an interrupt happens and nobody can handle it.

Signed-off-by: Andrey Rusalin <arusalin@dev.rtsoft.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: fdp: fix NULL pointer dereference
Sudip Mukherjee [Tue, 20 Dec 2016 21:09:04 +0000 (21:09 +0000)]
nfc: fdp: fix NULL pointer dereference

We are checking phy after dereferencing it. We can print the debug
information after checking it. If phy is NULL then we will get a good
stack trace to tell us that we are in this irq handler.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: Make EN2 pin optional in the TRF7970A driver
Guan Ben [Tue, 7 Feb 2017 05:22:04 +0000 (06:22 +0100)]
NFC: Make EN2 pin optional in the TRF7970A driver

Make the EN2 pin optional. This is useful for boards,
which have this pin fix wired, for example to ground.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guan Ben <ben.guan@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: nxp-nci: use msleep for long delays
Nicholas Mc Guire [Sun, 22 Jan 2017 12:28:39 +0000 (13:28 +0100)]
nfc: nxp-nci: use msleep for long delays

ulseep_range() uses hrtimers and provides no advantage over msleep()
for larger delays. For this large delay msleep() is preferable.

Fixes: commit 6be88670fc59 ("NFC: nxp-nci_i2c: Add I2C support to NXP NCI driver")
Link: http://lkml.org/lkml/2017/1/11/377
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: st21nfca: Fix potential memory leak
Christophe JAILLET [Sun, 19 Feb 2017 09:58:47 +0000 (10:58 +0100)]
NFC: st21nfca: Fix potential memory leak

If all bits of 'dev_mask' are already set, there is a memory leak because
'info' should be freed before returning.

While fixing it, 'return -ENOMEM' directly if the first kzalloc fails.
This makes the code more readable.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: nfcmrvl: double free on error path
Dan Carpenter [Wed, 8 Mar 2017 05:22:37 +0000 (08:22 +0300)]
NFC: nfcmrvl: double free on error path

The nci_spi_send() function calls kfree_skb(skb) on both error and
success so this extra kfree_skb() is a double free.

Fixes: caf6e49bf6d0 ("NFC: nfcmrvl: add spi driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: st21nfca: Remove unneeded linux/miscdevice.h include
Corentin Labbe [Thu, 15 Dec 2016 14:22:46 +0000 (15:22 +0100)]
nfc: st21nfca: Remove unneeded linux/miscdevice.h include

drivers/nfc/st21nfca/i2c.c does not use any miscdevice, so this patch
remove this unnecessary inclusion.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: pn544: Remove unneeded linux/miscdevice.h include
Corentin Labbe [Thu, 15 Dec 2016 14:22:45 +0000 (15:22 +0100)]
nfc: pn544: Remove unneeded linux/miscdevice.h include

drivers/nfc/pn544/i2c.c does not use any miscdevice, so this
patch remove this unnecessary inclusion.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: nxp-nci: Remove unneeded linux/miscdevice.h include
Corentin Labbe [Thu, 15 Dec 2016 14:22:44 +0000 (15:22 +0100)]
nfc: nxp-nci: Remove unneeded linux/miscdevice.h include

drivers/nfc/nxp-nci/i2c.c does not use any miscdevice, so this patch
remove this unnecessary inclusion.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: nxp-nci: Include unaligned.h instead of access_ok.h
Guenter Roeck [Sat, 1 Aug 2015 13:59:29 +0000 (06:59 -0700)]
NFC: nxp-nci: Include unaligned.h instead of access_ok.h

Directly including access_ok.h can result in the following compile errors
if an architecture such as ia64 does not support direct unaligned accesses.

include/linux/unaligned/access_ok.h:7:19: error:
redefinition of 'get_unaligned_le16'
include/linux/unaligned/le_struct.h:6:19: note:
previous definition of 'get_unaligned_le16' was here
include/linux/unaligned/access_ok.h:12:19: error:
redefinition of 'get_unaligned_le32'
include/linux/unaligned/le_struct.h:11:19: note:
previous definition of 'get_unaligned_le32' was here

Include asm/unaligned.h instead and let the architecture decide which
access functions to use.

Cc: Clément Perrochaud <clement.perrochaud@effinnov.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: nfcmrvl: Include unaligned.h instead of access_ok.h
Tobias Klauser [Wed, 26 Oct 2016 09:00:12 +0000 (11:00 +0200)]
NFC: nfcmrvl: Include unaligned.h instead of access_ok.h

Including linux/unaligned/access_ok.h causes the allmodconfig build on
ia64 (and maybe others) to fail with the following warnings:

include/linux/unaligned/access_ok.h:7:19: error: redefinition of 'get_unaligned_le16'
include/linux/unaligned/access_ok.h:12:19: error: redefinition of 'get_unaligned_le32'
include/linux/unaligned/access_ok.h:17:19: error: redefinition of 'get_unaligned_le64'
include/linux/unaligned/access_ok.h:22:19: error: redefinition of 'get_unaligned_be16'
include/linux/unaligned/access_ok.h:27:19: error: redefinition of 'get_unaligned_be32'
include/linux/unaligned/access_ok.h:32:19: error: redefinition of 'get_unaligned_be64'
include/linux/unaligned/access_ok.h:37:20: error: redefinition of 'put_unaligned_le16'
include/linux/unaligned/access_ok.h:42:20: error: redefinition of 'put_unaligned_le32'
include/linux/unaligned/access_ok.h:42:20: error: redefinition of 'put_unaligned_le64'
include/linux/unaligned/access_ok.h:42:20: error: redefinition of 'put_unaligned_be16'
include/linux/unaligned/access_ok.h:42:20: error: redefinition of 'put_unaligned_be32'
include/linux/unaligned/access_ok.h:42:20: error: redefinition of 'put_unaligned_be64'

Fix these by including asm/unaligned.h instead and leave it up to the
architecture to decide how to implement unaligned accesses.

Fixes: 3194c6870158 ("NFC: nfcmrvl: add firmware download support")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Link: https://lkml.org/lkml/2016/10/22/247
Cc: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: nfcmrvl: drop duplicate header gpio.h
Geliang Tang [Thu, 24 Nov 2016 13:58:34 +0000 (21:58 +0800)]
NFC: nfcmrvl: drop duplicate header gpio.h

Drop duplicate header gpio.h from nfcmrvl/spi.c.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoNFC: remove TI nfcwilink driver
Rob Herring [Wed, 25 Jan 2017 22:23:07 +0000 (16:23 -0600)]
NFC: remove TI nfcwilink driver

It appears that TI WiLink devices including NFC (WL185x/WL189x) never
shipped. The only information I found were announcements in Feb
2012 about the parts. There's been no activity on this driver besided
common changes since initially added in Jan 2012. There's also no in
users that instantiate the platform device (nor DT bindings).

This is a first step in removing TI ST (shared transport) driver in
favor of extending the BT hci_ll driver to support WL183x chips.

Cc: Ilan Elias <ilane@ti.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: Fix hangup of RC-S380* in port100_send_ack()
OGAWA Hirofumi [Sat, 4 Feb 2017 01:16:56 +0000 (10:16 +0900)]
nfc: Fix hangup of RC-S380* in port100_send_ack()

If port100_send_ack() was called twice or more, it has race to hangup.

  port100_send_ack()          port100_send_ack()
    init_completion()
    [...]
    dev->cmd_cancel = true
                                /* this removes previous from completion */
                                init_completion()
[...]
                                dev->cmd_cancel = true
                                wait_for_completion()
    /* never be waked up */
    wait_for_completion()

Like above race, this code is not assuming port100_send_ack() is
called twice or more.

To fix, this checks dev->cmd_cancel to know if prior cancel is
in-flight or not. And never be remove prior task from completion by
using reinit_completion(), so this guarantees to be waked up properly
soon or later.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: Fix RC-S380* needs zero-length packet
OGAWA Hirofumi [Sat, 4 Feb 2017 01:16:28 +0000 (10:16 +0900)]
nfc: Fix RC-S380* needs zero-length packet

If sent packet size is wMaxPacketSize boundary, this device doesn't
answer. To fix this, we have to send zero-length packet in usb spec.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: Send same info for both of NFC_CMD_GET_DEVICE and NFC_EVENT_DEVICE_ADDED
OGAWA Hirofumi [Sat, 4 Feb 2017 01:15:55 +0000 (10:15 +0900)]
nfc: Send same info for both of NFC_CMD_GET_DEVICE and NFC_EVENT_DEVICE_ADDED

Now, NFC_EVENT_DEVICE_ADDED doesn't send NFC_ATTR_RF_MODE. But
NFC_CMD_GET_DEVICE send.

To get NFC_ATTR_RF_MODE, we have to call NFC_CMD_GET_DEVICE just for
NFC_ATTR_RF_MODE when get NFC_EVENT_DEVICE_ADDED.

This fixes those inconsistent.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agonfc: Add support RC-S380P to port100
OGAWA Hirofumi [Sat, 4 Feb 2017 01:15:22 +0000 (10:15 +0900)]
nfc: Add support RC-S380P to port100

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
7 years agoMerge branch 'bpf-prog-testing-framework'
David S. Miller [Sat, 1 Apr 2017 19:45:58 +0000 (12:45 -0700)]
Merge branch 'bpf-prog-testing-framework'

Alexei Starovoitov says:

====================
bpf: program testing framework

Development and testing of networking bpf programs is quite cumbersome.
Especially tricky are XDP programs that attach to real netdevices and
program development feels like working on the car engine while
the car is in motion.
Another problem is ongoing changes to upstream llvm core
that can introduce an optimization that verifier will not
recognize. llvm bpf backend tests have no ability to run the programs.
To improve this situation introduce BPF_PROG_TEST_RUN command
to test and performance benchmark bpf programs.
It achieves several goals:
- development of xdp and skb based bpf programs can be done
in a canned environment with unit tests
- program performance optimizations can be benchmarked outside of
networking core (without driver and skb costs)
- continuous testing of upstream changes is finally practical

Patches 4,5,6 add C based test cases of various complexity
to cover some sched_cls and xdp features. More tests will
be added in the future. The tests were run on centos7 only.

For now the framework supports only skb and xdp programs. In the future
it can be extended to socket_filter and tracing program types.

More details are in individual patches.

v1->v2:
- rename bpf_program_test_run->bpf_prog_test_run
- add missing #include <linux/bpf.h> since libbpf.h shouldn't depend
on prior includes
- reordered patches 3 and 4 to keep bisect clean
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoselftests/bpf: add l4 load balancer test based on sched_cls
Alexei Starovoitov [Fri, 31 Mar 2017 04:45:43 +0000 (21:45 -0700)]
selftests/bpf: add l4 load balancer test based on sched_cls

this l4lb demo is a comprehensive test case for LLVM codegen and
kernel verifier. It's using fully inlined jhash(), complex packet
parsing and multiple map lookups of different types to stress
llvm and verifier.
The map sizes, map population and test vectors are artificial to
exercise different paths through the bpf program.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoselftests/bpf: add a test for basic XDP functionality
Alexei Starovoitov [Fri, 31 Mar 2017 04:45:42 +0000 (21:45 -0700)]
selftests/bpf: add a test for basic XDP functionality

add C test for xdp_adjust_head(), packet rewrite and map lookups

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoselftests/bpf: add a test for overlapping packet range checks
Alexei Starovoitov [Fri, 31 Mar 2017 04:45:41 +0000 (21:45 -0700)]
selftests/bpf: add a test for overlapping packet range checks

add simple C test case for llvm and verifier range check fix from
commit b1977682a385 ("bpf: improve verifier packet range checks")

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotools/lib/bpf: expose bpf_program__set_type()
Alexei Starovoitov [Fri, 31 Mar 2017 04:45:40 +0000 (21:45 -0700)]
tools/lib/bpf: expose bpf_program__set_type()

expose bpf_program__set_type() to set program type

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotools/lib/bpf: add support for BPF_PROG_TEST_RUN command
Alexei Starovoitov [Fri, 31 Mar 2017 04:45:39 +0000 (21:45 -0700)]
tools/lib/bpf: add support for BPF_PROG_TEST_RUN command

add support for BPF_PROG_TEST_RUN command to libbpf.a

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: introduce BPF_PROG_TEST_RUN command
Alexei Starovoitov [Fri, 31 Mar 2017 04:45:38 +0000 (21:45 -0700)]
bpf: introduce BPF_PROG_TEST_RUN command

development and testing of networking bpf programs is quite cumbersome.
Despite availability of user space bpf interpreters the kernel is
the ultimate authority and execution environment.
Current test frameworks for TC include creation of netns, veth,
qdiscs and use of various packet generators just to test functionality
of a bpf program. XDP testing is even more complicated, since
qemu needs to be started with gro/gso disabled and precise queue
configuration, transferring of xdp program from host into guest,
attaching to virtio/eth0 and generating traffic from the host
while capturing the results from the guest.

Moreover analyzing performance bottlenecks in XDP program is
impossible in virtio environment, since cost of running the program
is tiny comparing to the overhead of virtio packet processing,
so performance testing can only be done on physical nic
with another server generating traffic.

Furthermore ongoing changes to user space control plane of production
applications cannot be run on the test servers leaving bpf programs
stubbed out for testing.

Last but not least, the upstream llvm changes are validated by the bpf
backend testsuite which has no ability to test the code generated.

To improve this situation introduce BPF_PROG_TEST_RUN command
to test and performance benchmark bpf programs.

Joint work with Daniel Borkmann.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: Mock-up driver
Florian Fainelli [Fri, 31 Mar 2017 01:43:21 +0000 (18:43 -0700)]
net: dsa: Mock-up driver

This patch adds support for a DSA mock-up driver which essentially does
the following:

- registers/unregisters 4 fixed PHYs to the slave network devices
- uses eth0 (configurable) as the master netdev
- registers the switch as a fixed MDIO device against the fixed MDIO bus
  at address 31
- includes dynamic debug prints for dsa_switch_ops functions that can be
  enabled to get call traces

This is a good way to test modular builds as well as exercise the DSA
APIs without requiring access to real hardware. This does not test the
data-path, although this could be added later on.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'mv88e6xxx-cross-chip-bridging'
David S. Miller [Sat, 1 Apr 2017 19:22:59 +0000 (12:22 -0700)]
Merge branch 'mv88e6xxx-cross-chip-bridging'

Vivien Didelot says:

====================
net: dsa: mv88e6xxx: program cross-chip bridging

The purpose of this patch series is to bring hardware cross-chip
bridging configuration to the DSA layer and the mv88e6xxx DSA driver.

Most recent Marvell switch chips have a Cross-chip Port Based VLAN Table
(PVT) used to restrict to which internal destination port an arbitrary
external source port is allowed to egress frames to.

The current behavior of the mv88e6xxx driver is to program this table
table with all ones, allowing any external ports to egress frames on any
internal ports. This means that carefully crafted Ethernet frames can
potentially bypass the user bridging configuration.

Patches 1 to 7 prepare the setup of this table and factorize the common
bits of both in-chip and cross-chip Marvell bridging code.

Patch 8 adds new optional cross-chip bridging operations to DSA switch.

Patch 9 switches the current behavior to program the table according to
the user bridging configuration when (cross-chip) ports get (un)bridged.

On a ZII Rev B board, bridging together the 3 user ports of both 88E6352
will result in the following PVTs on respectively switch 0 and switch 1:

    External   Internal Ports
    Dev Port   0  1  2  3  4  5  6

     1    0    *  *  *  -  -  *  *
     1    1    *  *  *  -  -  *  *
     1    2    *  *  *  -  -  *  *
     1    3    -  -  -  -  -  *  *
     1    4    -  -  -  -  -  *  *
     1    5    *  *  *  *  *  *  *
     1    6    *  *  *  *  *  *  *

     0    0    *  *  *  -  -  *  *
     0    1    *  *  *  -  -  *  *
     0    2    *  *  *  -  -  *  *
     0    3    -  -  -  -  -  *  *
     0    4    -  -  -  -  -  *  *
     0    5    *  *  *  *  *  *  *
     0    6    *  *  *  *  *  *  *

Changes since v2:
  - Define MV88E6XXX_MAX_PVT_SWITCHES and MV88E6XXX_MAX_PVT_PORTS
  - use mv88e6xxx_g2_misc_4_bit_port instead of the 5-bit variant
  - add Andrew's tags and reword commit 6/9
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: add cross-chip bridging
Vivien Didelot [Thu, 30 Mar 2017 21:37:15 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: add cross-chip bridging

Implement the DSA cross-chip bridging operations by remapping the local
ports an external source port can egress frames to, when this cross-chip
port joins or leaves a bridge.

The PVT is no longer configured with all ones allowing any external
frame to egress any local port. Only DSA and CPU ports, as well as
bridge group members, can egress frames on local ports.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: add cross-chip bridging operations
Vivien Didelot [Thu, 30 Mar 2017 21:37:14 +0000 (17:37 -0400)]
net: dsa: add cross-chip bridging operations

Introduce crosschip_bridge_{join,leave} operations in the dsa_switch_ops
structure, which can be used by switches supporting interconnection.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: remap existing bridge members
Vivien Didelot [Thu, 30 Mar 2017 21:37:13 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: remap existing bridge members

When a local port of a switch chip becomes a member of a bridge group,
we need to reprogram the Cross-chip Port Based VLAN Table (PVT) to allow
existing cross-chip bridge members to egress frames on the new ports.

There is no functional changes yet, since the PVT is still programmed
with all ones, allowing any external port to egress frames locally.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: factorize in-chip bridge map
Vivien Didelot [Thu, 30 Mar 2017 21:37:12 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: factorize in-chip bridge map

Factorize the code in the DSA port_bridge_{join,leave} routines used to
program the port VLAN map of all local ports of a given bridge group.

At the same time shorten the _mv88e6xxx_port_based_vlan_map to get rid
of the old underscore prefix naming convention.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: rework in-chip bridging
Vivien Didelot [Thu, 30 Mar 2017 21:37:11 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: rework in-chip bridging

All ports -- internal and external, for chips featuring a PVT -- have a
mask restricting to which internal ports a frame is allowed to egress.

Now that DSA exposes the number of ports and their bridge devices, it is
possible to extract the code generating the VLAN map and make it generic
so that it can be shared later with the cross-chip bridging code.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: allocate the number of ports
Vivien Didelot [Thu, 30 Mar 2017 21:37:10 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: allocate the number of ports

The current code allocates DSA_MAX_PORTS ports for a Marvell dsa_switch
structure. Provide the exact number of ports so the corresponding
ds->num_ports is accurate.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: program the PVT with all ones
Vivien Didelot [Thu, 30 Mar 2017 21:37:09 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: program the PVT with all ones

The Cross-chip Port Based VLAN Table (PVT) is currently initialized with
all ones, allowing any external ports to egress frames on local ports.

This commit implements the PVT access functions and programs the PVT
with all ones for the local switch ports only, instead of using the Init
operation. The current behavior is unchanged for the moment.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: use 4-bit port for PVT data
Vivien Didelot [Thu, 30 Mar 2017 21:37:08 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: use 4-bit port for PVT data

The Cross-chip Port Based VLAN Table (PVT) supports two indexing modes,
one using 5-bit for device and 4-bit for port, the other using 4-bit for
device and 5-bit for port, configured via the Global 2 Misc register.

Only 4 bits for the source port are needed when interconnecting 88E6xxx
switch devices since they all support less than 16 physical ports. The
full 5 bits are needed when interconnecting a device with 98DXxxx switch
devices since they support more than 16 physical ports.

Add a mv88e6xxx_pvt_setup helper to set the 4-bit port PVT mode, which
will be extended later to also initialize the PVT content.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: move PVT description in info
Vivien Didelot [Thu, 30 Mar 2017 21:37:07 +0000 (17:37 -0400)]
net: dsa: mv88e6xxx: move PVT description in info

Not all Marvell switch chips feature a Cross-chip Port VLAN Table (PVT).

Chips with a PVT use the same implementation, so a new mv88e6xxx_ops
member won't be necessary yet. Add a "pvt" boolean member to the
mv88e6xxx_info structure and kill the obsolete MV88E6XXX_FLAGS_PVT flag.

Add a mv88e6xxx_has_pvt helper to wrap future checks of that condition.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodpaa_eth: use AVOIDBLOCK for Tx confirmation queues
Madalin Bucur [Thu, 30 Mar 2017 13:24:15 +0000 (16:24 +0300)]
dpaa_eth: use AVOIDBLOCK for Tx confirmation queues

The AVOIDBLOCK flag determines the Tx confirmation queues processing
to be redirected to any available CPU when the current one is slow
in processing them. This may result in a higher Tx confirmation
interrupt count but may reduce pressure on a certain CPU that with
the previous setting would process all Tx confirmation frames.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agofsl/fman: take into account all RGMII modes
Madalin Bucur [Thu, 30 Mar 2017 13:21:40 +0000 (16:21 +0300)]
fsl/fman: take into account all RGMII modes

Accept the internal delay RGMII variants.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agovxlan: vxlan dev should inherit lowerdev's gso_max_size
Felix Manlunas [Thu, 30 Mar 2017 00:56:43 +0000 (17:56 -0700)]
vxlan: vxlan dev should inherit lowerdev's gso_max_size

vxlan dev currently ignores lowerdev's gso_max_size, which adversely
affects TSO performance of liquidio if it's the lowerdev.  Egress TCP
packets' skb->len often exceed liquidio's advertised gso_max_size.  This
may happen on other NIC drivers.

Fix it by assigning lowerdev's gso_max_size to that of vxlan dev.  Might as
well do likewise for gso_max_segs.

Single flow TSO throughput of liquidio as lowerdev (using iperf3):

    Before the patch:    139 Mbps
    After the patch :   8.68 Gbps
    Percent increase:  6,144 %

Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosock: avoid dirtying sk_stamp, if possible
Paolo Abeni [Thu, 30 Mar 2017 12:03:06 +0000 (14:03 +0200)]
sock: avoid dirtying sk_stamp, if possible

sock_recv_ts_and_drops() unconditionally set sk->sk_stamp for
every packet, even if the SOCK_TIMESTAMP flag is not set in the
related socket.
If selinux is enabled, this cause a cache miss for every packet
since sk->sk_stamp and sk->sk_security share the same cacheline.
With this change sk_stamp is set only if the SOCK_TIMESTAMP
flag is set, and is cleared for the first packet, so that the user
perceived behavior is unchanged.

This gives up to 5% speed-up under udp-flood with small packets.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'ibmvnic-cleanup-resource-handling'
David S. Miller [Thu, 30 Mar 2017 22:58:43 +0000 (15:58 -0700)]
Merge branch 'ibmvnic-cleanup-resource-handling'

Nathan Fontenot says:

====================
ibmvnic: Cleanup resource handling

In order to better manage the resources of the ibmvnic driver, this set of
patches creates a set of initialization and release routines for the
drivers resources. Additionally, some patches do some re-naming of the
affected routines so that there is a common naming scheme in the driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Cleanup failure path in ibmvnic_open
Nathan Fontenot [Thu, 30 Mar 2017 06:49:29 +0000 (02:49 -0400)]
ibmvnic: Cleanup failure path in ibmvnic_open

Now that ibmvnic_release_resources will clean up all of our resources
properly, even if they were not allocated, we can just call this
for failues in ibmvnic_open.

This patch also moves the ibmvnic_release_resources() routine up
in the file to avoid creating a forward declaration ad re-names it to
drop the ibmvnic prefix.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Create init/release routines for stats token
Nathan Fontenot [Thu, 30 Mar 2017 06:49:23 +0000 (02:49 -0400)]
ibmvnic: Create init/release routines for stats token

Create an initialization and a release routine for the stats token used by
the ibmvnic driver.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Merge the two release_sub_crq_queue routines
Nathan Fontenot [Thu, 30 Mar 2017 06:49:18 +0000 (02:49 -0400)]
ibmvnic: Merge the two release_sub_crq_queue routines

Keeping two routines for releasing sub crqs, one for when irqs are not
initialized and one for when they are, is a bit of overkill. Merge the
two routines to a common release routine that will check for an irq
and release it if needed.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Create init and release routines for the rx pool
Nathan Fontenot [Thu, 30 Mar 2017 06:49:12 +0000 (02:49 -0400)]
ibmvnic: Create init and release routines for the rx pool

Move the initialization and the release of the rx pool to their own
routines, and update them to do validation.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Create init and release routines for the tx pool
Nathan Fontenot [Thu, 30 Mar 2017 06:49:06 +0000 (02:49 -0400)]
ibmvnic: Create init and release routines for the tx pool

Move the initialization and the release of the tx pool to their own routines,
and update them to do validation. This also adds validation to the release
of the long term buffer.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Create init and release routines for the bounce buffer
Nathan Fontenot [Thu, 30 Mar 2017 06:49:00 +0000 (02:49 -0400)]
ibmvnic: Create init and release routines for the bounce buffer

Move the handling of initialization and releasing the bounce buffer to their
own init and release routines.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Update main crq initialization and release
Nathan Fontenot [Thu, 30 Mar 2017 06:48:54 +0000 (02:48 -0400)]
ibmvnic: Update main crq initialization and release

Update the initialization and release routines for the crq queue so that
we validate the crq queue.

Additionally this updates the naming of the init and release routines
for the crq queue to drop the ibmvnic prefix. This matches the naming
for similar routines in the driver

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: tcp: Refine the __tcp_select_window
Gao Feng [Wed, 29 Mar 2017 22:49:19 +0000 (06:49 +0800)]
net: tcp: Refine the __tcp_select_window

1. Move the "window = tp->rcv_wnd;" into the condition block without
tp->rx_opt.rcv_wscale.
Because it is unnecessary when enable wscale;

2. Use the macro ALIGN instead of two statements.
The two statements are used to make window align to 1<<wscale.
Use the ALIGN is more clearer.

3. Use the rounddown to make codes clearer.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: debug ATU Age Time
Vivien Didelot [Wed, 29 Mar 2017 19:38:37 +0000 (15:38 -0400)]
net: dsa: mv88e6xxx: debug ATU Age Time

The ATU ageing time value programmed in the switch is rounded up to the
nearest multiple of its coefficient (variable depending on the model.)

Add a debug message to inform the user about the exact programmed value.

On 6352, "brctl setageing br0 18" gives "AgeTime set to 0x01 (15000 ms)"
while on 6390 we get "AgeTime set to 0x05 (18750 ms)".

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Remove debugfs support
Nathan Fontenot [Wed, 29 Mar 2017 19:14:55 +0000 (15:14 -0400)]
ibmvnic: Remove debugfs support

The debugfs support in the ibmvnic driver is not, and never has been,
supported. Just remove it.

The work done in the debugfs code for the driver was part of the original
spec for the ibmvnic driver. The corresponding support for this from the
server side was never supported and has been dropped.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobonding: refine bond_fold_stats() wrap detection
Eric Dumazet [Wed, 29 Mar 2017 17:45:44 +0000 (10:45 -0700)]
bonding: refine bond_fold_stats() wrap detection

Some device drivers reset their stats at down/up events, possibly
fooling bonding stats, since they operate with relative deltas.

It is nearly not possible to fix drivers, since some of them compute the
tx/rx counters based on per rx/tx queue stats, and the queues can be
reconfigured (ethtool -L) between the down/up sequence.

Lets avoid accumulating 'negative' values that render bonding stats
useless.

It is better to lose small deltas, assuming the bonding stats are
fetched at a reasonable frequency.

Fixes: 5f0c5f73e5ef ("bonding: make global bonding stats more reliable")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoVSOCK: remove unnecessary ternary operator on return value
Colin Ian King [Wed, 29 Mar 2017 15:33:55 +0000 (16:33 +0100)]
VSOCK: remove unnecessary ternary operator on return value

Rather than assign the positive errno values to ret and then
checking if it is positive and flip the sign, just return the
errno value.

Detected by CoverityScan, CID#986649 ("Logically Dead Code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodrivers: add explicit interrupt.h includes
Florian Westphal [Wed, 29 Mar 2017 15:17:31 +0000 (17:17 +0200)]
drivers: add explicit interrupt.h includes

These files all use functions declared in interrupt.h, but currently rely
on implicit inclusion of this file (via netns/xfrm.h).

That won't work anymore when the flow cache is removed so include that
header where needed.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: dwmac-rk: Add handling for RGMII_ID/RXID/TXID
Wadim Egorov [Wed, 29 Mar 2017 12:12:19 +0000 (14:12 +0200)]
net: stmmac: dwmac-rk: Add handling for RGMII_ID/RXID/TXID

ATM dwmac-rk will always set and enable it's internal delay lines.
Using PHY internal delays in combination with the phy-mode
rgmii-id/rxid/txid was not possible. Only rgmii was supported.

Now we can disable rockchip's gmac delay lines and also use
rgmii-id/rxid/txid.

Tested only with a RK3288 based board.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoRevert "net: stmmac: enable multiple buffers"
LABBE Corentin [Wed, 29 Mar 2017 05:05:40 +0000 (07:05 +0200)]
Revert "net: stmmac: enable multiple buffers"

The commit aff3d9eff843 ("net: stmmac: enable multiple buffers") breaks
numerous boards. while some patch exists for fixing some of it,
dwmac-sunxi is still broken with it.
Since this patch is very huge, it will be better to split it in smaller
part.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Wed, 29 Mar 2017 21:13:09 +0000 (14:13 -0700)]
Merge branch '40GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2017-03-29

This series contains updates to i40e and i40evf only.

Preethi changes the default driver mode of operation to descriptor
write-back for VF.

Alex cleans up and addresses several issues in the way that i40e handles
private flags.  Modifies the driver to use the length of the packet
instead of the DD status bit to determine if a new descriptor is ready
to be processed.  Refactors the driver by pulling the code responsible
for fetching the receive buffer and synchronizing DMA into a single
function.  Also pulled the code responsible for handling buffer
recycling and page counting and distributed it through several functions,
so we can commonize the bits that handle either freeing or recycling the
buffers.  Cleans up the code in preparation for us adding support for
build_skb().  Changed the way we handle the maximum frame size for the
receive path so it is more consistent with other drivers.

Paul enables XL722 to use the direct read/write method since it does not
support the AQ command to read/write the control register.

Christopher fixes a case where we miss an arq element if a new one is
added before we enable interrupts and exit the loop.

Jake cleans up a pointless goto statement.  Also cleaned up a flag that
was not being used.

Carolyn does round 2 for adding a delay to the receive queue to
accommodate the hardware needs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'tipc-socketpair'
David S. Miller [Wed, 29 Mar 2017 21:10:12 +0000 (14:10 -0700)]
Merge branch 'tipc-socketpair'

Parthasarathy Bhuvaragan says:

====================
tipc: add socketpair support

We add socketpair support for connection oriented sockets in
the first patch and for connection less in the second.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotipc: allow rdm/dgram socketpairs
Erik Hugne [Wed, 29 Mar 2017 09:22:17 +0000 (11:22 +0200)]
tipc: allow rdm/dgram socketpairs

for socketpairs using connectionless transport, we cache
the respective node local TIPC portid to use in subsequent
calls to send() in the socket's private data.

Signed-off-by: Erik Hugne <erik.hugne@gmail.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotipc: add support for stream/seqpacket socketpairs
Erik Hugne [Wed, 29 Mar 2017 09:22:16 +0000 (11:22 +0200)]
tipc: add support for stream/seqpacket socketpairs

sockets A and B are connected back-to-back, similar to what
AF_UNIX does.

Signed-off-by: Erik Hugne <erik.hugne@gmail.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: set rx mode during resume if interface is running
Jisheng Zhang [Wed, 29 Mar 2017 08:47:19 +0000 (16:47 +0800)]
net: mvneta: set rx mode during resume if interface is running

I found a bug by:

0. boot and start dhcp client
1. echo mem > /sys/power/state
2. resume back immediately
3. don't touch dhcp client to renew the lease
4. ping the gateway. No acks

Usually, after step2, the DHCP lease isn't expired, so in theory we
should resume all back. But in fact, it doesn't. It turns out
the rx mode isn't resumed correctly. This patch fixes it by adding
mvneta_set_rx_mode(dev) in the resume hook if interface is running.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: add RGMII_RXID and RGMII_TXID support
Jisheng Zhang [Wed, 29 Mar 2017 08:42:26 +0000 (16:42 +0800)]
net: mvneta: add RGMII_RXID and RGMII_TXID support

RGMII_RXID and RGMII_TX_ID share the same GMAC CTRL setting as RGMII
or RGMII_ID.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: veth: use new api ethtool_{get|set}_link_ksettings
Philippe Reynes [Wed, 29 Mar 2017 06:24:21 +0000 (08:24 +0200)]
net: veth: use new api ethtool_{get|set}_link_ksettings

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'mlx5e-pedit' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
David S. Miller [Wed, 29 Mar 2017 18:24:21 +0000 (11:24 -0700)]
Merge tag 'mlx5e-pedit' of git://git./linux/kernel/git/saeed/linux

Or Gerlitz says:

====================
mlx5e-pedit 2017-03-28

This series adds support for offloading modifications of packet headers using
ConnectX-5 HW header re-write as an action applied during packet steering.

The offloaded SW mechanism is TC's pedit action. The offloading is
supported for E-Switch steering of VF traffic in the SRIOV
switchdev mode and for NIC (non eswitch) RX.

One use-case for this offload on virtual networks, is when the hypervisor
implements flow based router such as Open-Stack's DVR, where L2 headers
of guest packets re-written with routers' MAC addresses and the IP TTL
is decremented.

Another use case (which can be applied in parallel with routing) is
stateless NAT where guest L3/L4 headers are re-written.

The series is built as follows: the 1st six patches are preperations which
don't yet add new functionality, patches 7-8 add the FW APIs (data-structures
and commands) for header re-write, and patch nine allows offloading driver
to access pedit keys.

The 10th patch is somehow the core of the series, where we translate from
the pedit way to represent set of header modification elements to the FW
API for that same matter.

Once a set of HW modification is established, we register it with the FW
and get a modify header ID. When this ID is used with an action during
packet steering, the HW applies the header modification on the packet.

Patches 11 and 12 implement the above logic as an offload for pedit action
for the NIC and E-Switch use-cases.

I'd like to thanks Elijah Shakkour <elijahs@mellanox.com> for implementing
and helping me testing this functionality on HW simulator, before it could
be done with FW.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mpls: Update lfib_nlmsg_size to skip deleted nexthops
David Ahern [Tue, 28 Mar 2017 22:19:49 +0000 (15:19 -0700)]
net: mpls: Update lfib_nlmsg_size to skip deleted nexthops

A recent commit skips nexthops in a route if the device has been
deleted. Update lfib_nlmsg_size accordingly.

Reported-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: phy: Allow building mdio-boardinfo into the kernel
Florian Fainelli [Tue, 28 Mar 2017 19:57:09 +0000 (12:57 -0700)]
net: phy: Allow building mdio-boardinfo into the kernel

mdio-boardinfo contains code that is helpful for platforms to register
specific MDIO bus devices independent of how CONFIG_MDIO_DEVICE or
CONFIG_PHYLIB will be selected (modular or built-in). In order to make
that possible, let's do the following:

- descend into drivers/net/phy/ unconditionally

- make mdiobus_setup_mdiodev_from_board_info() take a callback argument
  which allows us not to expose the internal MDIO board info list and
  mutex, yet maintain the logic within the same file

- relocate the code that creates a MDIO device into
  drivers/net/phy/mdio_bus.c

- build mdio-boardinfo.o into the kernel as soon as MDIO_DEVICE is
  defined (y or m)

Fixes: 90eff9096c01 ("net: phy: Allow splitting MDIO bus/device support from PHYs")
Fixes: 648ea0134069 ("net: phy: Allow pre-declaration of MDIO devices")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoi40e: fix for queue timing delays
Wyborny, Carolyn [Tue, 28 Mar 2017 15:00:48 +0000 (08:00 -0700)]
i40e: fix for queue timing delays

This patch adds a delay to Rx queue disables to accommodate HW needs.

v2: Added missing check for disable only, additional details on the
need for the ugly delay and fixed spacing on comment.

Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e/i40evf: Change the way we limit the maximum frame size for Rx
Alexander Duyck [Tue, 14 Mar 2017 17:15:27 +0000 (10:15 -0700)]
i40e/i40evf: Change the way we limit the maximum frame size for Rx

This patch changes the way we handle the maximum frame size for the Rx
path.  Previously we were rounding up to 2K for a 1500 MTU and then brining
the max frame size down to MTU plus a fixed amount.  With this patch
applied what we now do is limit the maximum frame to 1.5K minus the value
for NET_IP_ALIGN for standard MTU, and for any MTU greater than 1500 we
allow up to the maximum frame size.  This makes the behavior more
consistent with the other drivers such as igb which had similar logic.  In
addition it reduces the test matrix for MTU since we only have two max
frame sizes that are handled for Rx now.

Change-ID: I23a9d3c857e7df04b0ef28c64df63e659c013f3f
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e/i40evf: Add legacy-rx private flag to allow fallback to old Rx flow
Alexander Duyck [Tue, 14 Mar 2017 17:15:26 +0000 (10:15 -0700)]
i40e/i40evf: Add legacy-rx private flag to allow fallback to old Rx flow

This patch adds a control which will allow us to toggle into and out of the
legacy Rx mode.  The legacy Rx mode is what we currently do when performing
Rx.  As I make further changes what should happen is that the driver will
fall back to the behavior for Rx as of this patch should the "legacy-rx"
flag be set to on.

Change-ID: I0342998849bbb31351cce05f6e182c99174e7751
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e/i40evf: Break i40e_fetch_rx_buffer up to allow for reuse of frag code
Alexander Duyck [Tue, 14 Mar 2017 17:15:25 +0000 (10:15 -0700)]
i40e/i40evf: Break i40e_fetch_rx_buffer up to allow for reuse of frag code

This patch is meant to clean up the code in preparation for us adding
support for build_skb.  Specifically we deconstruct i40e_fetch_buffer into
several functions so that those functions can later be reused when we add a
path for build_skb.

Specifically with this change we split out the code for adding a page to an
exiting skb.

Change-ID: Iab1efbab6b8b97cb60ab9fdd0be1d37a056a154d
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e/i40evf: Pull out code for cleaning up Rx buffers
Alexander Duyck [Tue, 14 Mar 2017 17:15:24 +0000 (10:15 -0700)]
i40e/i40evf: Pull out code for cleaning up Rx buffers

This patch pulls out the code responsible for handling buffer recycling and
page counting and distributes it through several functions.  This allows us
to commonize the bits that handle either freeing or recycling the buffers.

As far as the page count tracking one change to the logic is that
pagecnt_bias is decremented as soon as we call i40e_get_rx_buffer.  It is
then the responsibility of the function that pulls the data to either
increment the pagecnt_bias if the buffer can be recycled as-is, or to
update page_offset so that we are pointing at the correct location for
placement of the next buffer.

Change-ID: Ibac576360cb7f0b1627f2a993d13c1a8a2bf60af
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e/i40evf: Pull code for grabbing and syncing rx_buffer from fetch_buffer
Alexander Duyck [Tue, 14 Mar 2017 17:15:23 +0000 (10:15 -0700)]
i40e/i40evf: Pull code for grabbing and syncing rx_buffer from fetch_buffer

This patch pulls the code responsible for fetching the Rx buffer and
synchronizing DMA into a function, specifically called i40e_get_rx_buffer.

The general idea is to allow for better code reuse by pulling this out of
i40e_fetch_rx_buffer.  We dropped a couple of prefetches since the time
between the prefetch being called and the data being accessed was too small
to be useful.

Change-ID: I4885fce4b2637dbedc8e16431169d23d3d7e79b9
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e/i40evf: Use length to determine if descriptor is done
Alexander Duyck [Tue, 14 Mar 2017 17:15:22 +0000 (10:15 -0700)]
i40e/i40evf: Use length to determine if descriptor is done

This change makes it so that we use the length of the packet instead of the
DD status bit to determine if a new descriptor is ready to be processed.
The obvious advantage is that it cuts down on reads as we don't really even
need the DD bit if going from a 0 to a non-zero value on size is enough to
inform us that the packet has been completed.

Change-ID: Iebdf9cdb36c454ef092df27199b92ad09c374231
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: remove FDIR_REQUIRES_REINIT driver flag
Jacob Keller [Fri, 10 Mar 2017 20:22:05 +0000 (12:22 -0800)]
i40e: remove FDIR_REQUIRES_REINIT driver flag

This flag hasn't been used since commit 1e1be8f622ee ("i40e: ATR policy
change to flush the table to clean stale ATR rules").

Lets simplify things and just remove it.

Change-ID: I76279d84db8a2fd96f445b96aa413059f9256879
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: remove a useless goto statement
Jacob Keller [Fri, 10 Mar 2017 20:22:04 +0000 (12:22 -0800)]
i40e: remove a useless goto statement

The goto found here for when in MFP mode is pointless. It jumps to the
end of a series of if blocks. However, right after this statement is
a closing '}' for this if block, which will result in the program flow
going to the exact same location as the goto statement indicates. Thus,
regardless of whether we are in MFP mode, the program flow will resume
from the same location.

This arose due to various refactoring which did not notice that this
goto became essentially a no-op.

To properly understand this diff you will need to view a larger context
than is given by default.

Change-ID: I088f73c3831aa5c4e2281380c7a3ce605594300c
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: Check for new arq elements before leaving the adminq subtask loop
Christopher N Bednarz [Fri, 10 Mar 2017 20:22:03 +0000 (12:22 -0800)]
i40e: Check for new arq elements before leaving the adminq subtask loop

Fix a case where we miss an arq element if a new one is added before we
enable interrupts and exit the arq subtask loop. This occurs frequently
with RDMA running on Windows VF and causes long delays that prevent SMB
from establishing connections.

Change-ID: I3e1c8b2b960c12857d9b8275bea2c1563674392e
Signed-off-by: Christopher N Bednarz <christopher.n.bednarz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: use register for XL722 control register read/write
Paul M Stillwell Jr [Fri, 10 Mar 2017 20:22:02 +0000 (12:22 -0800)]
i40e: use register for XL722 control register read/write

The XL722 doesn't support the AQ command to read/write the control
register so enable it to bypass the check and use the direct read/write
method.

Change-ID: Iefecc737b57207485c90845af5989d5af518bf16
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: Clean up handling of private flags
Alexander Duyck [Fri, 10 Mar 2017 20:22:01 +0000 (12:22 -0800)]
i40e: Clean up handling of private flags

This patch cleans up and addresses several issues in the way that i40e
handles private flags. Previously the code was choosing fixed bits and
trying to match them up with strings in a somewhat haphazard way. This
resulted in the possibility for adding a new bit and causing a mismatch as
the private flags are linear bits starting at 0, and the private flags in
the driver were split up over a group specific to the PF and a group that
was global.

What this change does is define an array of structs used to represent the
private flags. Contained within the structs are the bits necessary to know
which flags to set and/or clear depending on the state of the bit. By
doing this we can add new bits in the future with minimal overhead and
avoid creating possible mis-matches should we need to remove a flag based
on compile options.

Change-ID: Ia3214ab04f0ab2f70354ac0997a135f1d01b0acd
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40evf: enforce descriptor write-back mechanism for VF
Preethi Banala [Fri, 10 Mar 2017 20:22:00 +0000 (12:22 -0800)]
i40evf: enforce descriptor write-back mechanism for VF

The current driver mode is to use a write-back mechanism for the head
register which indicates transmit completions. The VF driver needs to be
able to work on hardware that exclusively uses descriptor write-back, so
change the default driver mode of operation to descriptor write-back for
VF. In our analysis, performance wasn't significantly different with
either write-back method.

Change-ID: Ia92e4ec77c2df8dc4515c71d53746d57d77759af
Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoMerge branch 'dsa-devlink'
David S. Miller [Wed, 29 Mar 2017 05:46:05 +0000 (22:46 -0700)]
Merge branch 'dsa-devlink'

Andrew Lunn says:

====================
break include loop and dsa devlink support

These two patches add very basic support for devlink to DSA, in
preparation for playing with dpipe.

The first patch is needed to break an include loop between
netdevice.h, dsa.h and devlink.h. We need to remove dsa.h from
netdevice.h. As a result, some files fail to compile, because they
require includes pulled in via dsa.h. So this patch adds a number of
includes in various places. The majority is within the network
subsystem, but cifs also needs a few fixes.

0-day has been chewing on this for over a day now, and not found any
breakage. But Arnd's randconfig might uncover something.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: dsa2: Add basic support of devlink
Andrew Lunn [Tue, 28 Mar 2017 21:45:07 +0000 (23:45 +0200)]
net: dsa: dsa2: Add basic support of devlink

Register the switch and its ports with devlink.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: break include loop netdevice.h, dsa.h, devlink.h
Andrew Lunn [Tue, 28 Mar 2017 21:45:06 +0000 (23:45 +0200)]
net: break include loop netdevice.h, dsa.h, devlink.h

There is an include loop between netdevice.h, dsa.h, devlink.h because
of NETDEV_ALIGN, making it impossible to use devlink structures in
dsa.h.

Break this loop by taking dsa.h out of netdevice.h, add a forward
declaration of dsa_switch_tree and netdev_set_default_ethtool_ops()
function, which is what netdevice.h requires.

No longer having dsa.h in netdevice.h means the includes in dsa.h no
longer get included. This breaks a few other files which depend on
these includes. Add these directly in the affected file.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>