Commit Graph

855470 Commits

Author SHA1 Message Date
Amit Cohen b06689cc1b mlxsw: spectrum: Expose KVD size for Spectrum-2
Unlike Spectrum-1, the KVD (Key-value database) of Spectrum-2 is not
partitioned, so only expose the entire KVD size. This enables users to
query the total size of the KVD.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:36:19 -07:00
Wolfram Sang c93496e9f7 net: sfc: falcon: convert to i2c_new_dummy_device
Move from i2c_new_dummy() to i2c_new_dummy_device(). So, we now get an
ERRPTR which we use in error handling.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:19:19 -07:00
Arnd Bergmann 9eed21c01c mlx4: avoid large stack usage in mlx4_init_hca()
The mlx4_dev_cap and mlx4_init_hca_param are really too large
to be put on the kernel stack, as shown by this clang warning:

drivers/net/ethernet/mellanox/mlx4/main.c:3304:12: error: stack frame size of 1088 bytes in function 'mlx4_load_one' [-Werror,-Wframe-larger-than=]

With gcc, the problem is the same, but it does not warn because
it does not inline this function, and therefore stays just below
the warning limit, while clang is just above it.

Use kzalloc for dynamic allocation instead of putting them
on stack. This gets the combined stack frame down to 424 bytes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:46:49 -07:00
Arnd Bergmann 7c116e02a4 qed: reduce maximum stack frame size
clang warns about an overly large stack frame in one function
when it decides to inline all __qed_get_vport_*() functions into
__qed_get_vport_stats():

drivers/net/ethernet/qlogic/qed/qed_l2.c:1889:13: error: stack frame size of 1128 bytes in function '_qed_get_vport_stats' [-Werror,-Wframe-larger-than=]

Use a noinline_for_stack annotation to prevent clang from inlining
these, which keeps the maximum stack usage at around half of that
in the worst case, similar to what we get with gcc.

Fixes: 86622ee753 ("qed: Move statistics to L2 code")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:46:11 -07:00
Heiner Kallweit 81cd17a412 r8169: improve rtl_set_rx_mode
This patch improves and simplifies rtl_set_rx_mode a little.
No functional change intended.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:40:51 -07:00
David S. Miller ce599b1a12 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
1GbE Intel Wired LAN Driver Updates 2019-07-24

This series contains updates to igc and e1000e client drivers only.

Sasha provides a couple of cleanups to remove code that is not needed
and reduce structure sizes.  Updated the MAC reset flow to use the
device reset flow instead of a port reset flow.  Added addition device
id's that will be supported.

Kai-Heng Feng provides a workaround for a possible stalled packet issue
in our ICH devices due to a clock recovery from the PCH being too slow.

v2: removed the last patch in the series that supposedly fixed a MAC/PHY
    de-sync potential issue while waiting for additional information from
    hardware engineers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:35:40 -07:00
Qian Cai d601be9712 net/ixgbevf: fix a compilation error of skb_frag_t
The linux-next commit "net: Rename skb_frag_t size to bv_len" [1]
introduced a compilation error on powerpc as it forgot to deal with the
renaming from "size" to "bv_len" for ixgbevf.

[1] https://lore.kernel.org/netdev/20190723030831.11879-1-willy@infradead.org/T/#md052f1c7de965ccd1bdcb6f92e1990a52298eac5

In file included from ./include/linux/cache.h:5,
                 from ./include/linux/printk.h:9,
                 from ./include/linux/kernel.h:15,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:12:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function
'ixgbevf_xmit_frame_ring':
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4138:51: error:
'skb_frag_t' {aka 'struct bio_vec'} has no member named 'size'
   count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size);
                                                   ^
./include/uapi/linux/kernel.h:13:40: note: in definition of macro
'__KERNEL_DIV_ROUND_UP'
 #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
                                        ^
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4138:12: note: in
expansion of macro 'TXD_USE_COUNT'
   count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size);

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:28:43 -07:00
Masanari Iida e62088ea6a selftests: mlxsw: Fix typo in qos_mc_aware.sh
This patch fix some spelling typo in qos_mc_aware.sh

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 14:51:10 -07:00
YueHaibing 2ec0a89091 qlge: Fix build error without CONFIG_ETHERNET
Now if CONFIG_ETHERNET is not set, QLGE driver
building fails:

drivers/staging/qlge/qlge_main.o: In function `qlge_remove':
drivers/staging/qlge/qlge_main.c:4831: undefined reference to `unregister_netdev'

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 955315b0dc ("qlge: Move drivers/net/ethernet/qlogic/qlge/ to drivers/staging/qlge/")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 14:12:40 -07:00
Corentin Musard ed72a9bb9a r8169: fix a typo in a comment
Replace "additonal" by "additional" in a comment.
Typo found by checkpatch.pl.

Signed-off-by: Corentin Musard <corentinmusard@gmail.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 14:11:03 -07:00
Kai-Heng Feng e5e9a2ecfe e1000e: add workaround for possible stalled packet
This works around a possible stalled packet issue, which may occur due to
clock recovery from the PCH being too slow, when the LAN is transitioning
from K1 at 1G link speed.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204057

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin 6d37a38243 igc: Add more SKUs for i225 device
Add support for more SKUs.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin bb4265ec24 igc: Update the MAC reset flow
Use Device Reset flow instead of Port Reset flow.
This flow performs a reset of the entire controller device,
resulting in a state nearly approximating the state
following a power-up reset or internal PCIe reset,
except for system PCI configuration.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin 6145787d5e igc: Remove the unused field from a device specification structure
This patch comes to clean up the device specification structure.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin 2b69286dbd igc: Remove the polarity field from a PHY information structure
Polarity and cable length fields is not applicable for the i225 device.
This patch comes to clean up PHY information structure.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Matthew Wilcox (Oracle) 92493a2f8a Build fixes for skb_frag_size conversion
I missed a few places.  One is in some ifdeffed code which will probably
never be re-enabled; the others are in drivers which can't currently be
compiled on x86.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:46:03 -07:00
Chuhong Yuan 8f75ec1a22 sfc-falcon: Use dev_get_drvdata where possible
Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:44:46 -07:00
Chuhong Yuan 3e03a8ba8e sfc: Use dev_get_drvdata where possible
Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:44:46 -07:00
Chuhong Yuan dfa56f8315 forcedeth: Use dev_get_drvdata where possible
Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:44:46 -07:00
Chuhong Yuan 7bdb923495 net: marvell: Use dev_get_drvdata where possible
Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:44:46 -07:00
David S. Miller f876a78429 linux-can-next-for-5.4-20190724
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Merge tag 'linux-can-next-for-5.4-20190724' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2019-07-24

this is a pull request for net-next/master consisting of 26 patches.

The first two patches are by me. One adds missing files of the CAN
subsystem to the MAINTAINERS file, while the other sorts the
Makefile/Kconfig of the sja1000 drivers sub directory. In the next patch
Ji-Ze Hong (Peter Hong) provides a driver for the "Fintek PCIE to 2 CAN"
controller, based on the the sja1000 IP core.

Gustavo A. R. Silva's patch for the kvaser_usb driver introduces the use
of struct_size() instead of open coding it. Henning Colliander's patch
adds a driver for the "Kvaser PCIEcan" devices.

Another patch by Gustavo A. R. Silva marks expected switch fall-throughs
properly.

Dan Murphy provides 5 patches for the m_can. After cleanups a framework
is introduced so that the driver can be used from memory mapped IO as
well as SPI attached devices. Finally he adds a driver for the tcan4x5x
which uses this framework.

A series of 5 patches by Appana Durga Kedareswara rao for the xilinx_can
driver, first clean up,then add support for CANFD. Colin Ian King
contributes another cleanup for the xilinx_can driver.

Robert P. J. Day's patch corrects the brief history of the CAN protocol
given in the Kconfig menu entry.

2 patches by Dong Aisheng for the flexcan driver provide PE clock source
select support and dt-bindings description.
2 patches by Sean Nyekjaer for the flexcan driver provide add CAN
wakeup-source property and dt-bindings description.

Jeroen Hofstee's patch converts the ti_hecc driver to make use of the
rx-offload helper fixing a number of outstanding bugs.

The first patch of Oliver Hartkopp removes the now obsolete empty
ioctl() handler for the CAN protocols. The second patch adds SPDX
license identifiers for CAN subsystem.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:36:24 -07:00
Kelsey Skunberg 570d785ba4 drivers: net: xgene: Remove acpi_has_method() calls
acpi_evaluate_object will already return an error if the needed method
does not exist. Remove unnecessary acpi_has_method() calls and check the
returned acpi_status for failure instead.

Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 11:29:33 -07:00
Oliver Hartkopp fba76a5845 can: Add SPDX license identifiers for CAN subsystem
Add missing SPDX identifiers for the CAN network layer and correct the SPDX
license for two of its include files to make sure the BSD-3-Clause applies
for the entire subsystem.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Oliver Hartkopp 60649d4e0a can: remove obsolete empty ioctl() handler
With commit c7cbdbf29f ("net: rework SIOCGSTAMP ioctl handling") the only
ioctl function in can_ioctl() has been removed.

As this SIOCGSTAMP ioctl command is now handled in net/socket.c we can entirely
remove the CAN specific ioctl functions.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Jeroen Hofstee 4c7f715485 can: ti_hecc: use timestamp based rx-offloading
As already mentioned in [1] and included in [2], there is an off by one
issue since the high bank is already enabled when the _next_ mailbox to
be read has index 12, so the mailbox being read was 13. The message can
therefore go into mailbox 31 and the driver will be repolled until the
mailbox 12 eventually receives a msg. Or the message might end up in the
12th mailbox, but then it would become disabled after reading it and only
be enabled again in the next "round" after mailbox 13 was read, which can
cause out of order messages, since the lower priority mailboxes can
accept messages in the meantime.

As mentioned in [3] there is a hardware race condition when changing the
CANME register while messages are being received. Even when including a
busy poll on reception, like in [2] there are still overflows and out of
order messages at times, but less then without the busy loop polling.
Unlike what the patch suggests, the polling time is not in the microsecond
range, but takes as long as a current CAN bus reception needs to finish,
so typically more in the fraction of millisecond range. Since the timeout
is in jiffies it won't timeout.

Even with these additional fixes the driver is still not able to provide a
proper FIFO which doesn't drop packages. So change the driver to use
rx-offload and base order on timestamp instead of message box numbers. As
a side affect, this also fixes [4] and [5].

Before this change messages with a single byte counter were dropped /
received out of order at a bitrate of 250kbit/s on an am3517. With this
patch that no longer occurs up to and including 1Mbit/s.

[1] https://linux-can.vger.kernel.narkive.com/zgO9inVi/patch-can-ti-hecc-fix-rx-wrong-sequence-issue#post6
[2] http://arago-project.org/git/projects/?p=linux-omap3.git;a=commit;h=02346892777f07245de4d5af692513ebd852dcb2
[3] https://linux-can.vger.kernel.narkive.com/zgO9inVi/patch-can-ti-hecc-fix-rx-wrong-sequence-issue#post5
[4] https://patchwork.ozlabs.org/patch/895956/
[5] https://www.spinics.net/lists/netdev/msg494971.html

Cc: Anant Gole <anantgole@ti.com>
Cc: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Jeroen Hofstee <jhofstee@victronenergy.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Sean Nyekjaer 915f966642 can: flexcan: add support for DT property 'wakeup-source'
The flexcan controller can be forced as a wakeup source by
stating that explicitly in the device's .dts file using the
"wakeup-source" boolean property.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Sean Nyekjaer 10e0c525fc dt-bindings: can: flexcan: add can wakeup property
This patch adds the wakeup-source boolean property.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Dong Aisheng 8c306bec2d can: flexcan: add support for PE clock source select
Add support to select the clock source for CAN Protocol Engine (PE).
It's SoC Implementation dependent. Refer to RM for detailed definition
of each SoC. We select clock source 1 (peripheral clock) by default in
driver now, this patch adds support to parse the clock source from the DT.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Dong Aisheng 9d73399277 dt-bindings: can: flexcan: add PE clock source property to device tree
The FlexCAN controller can parse clock source property from DTS file to
select PE clock source.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Aisheng Dong ca10989632 can: flexcan: implement can Runtime PM
Flexcan will be disabled during suspend if no wakeup function required and
enabled after resume accordingly. During this period, we could explicitly
disable clocks.
Since PM is optional, the clock is enabled at probe to guarante the
clock is running when PM is not enabled in the kernel.

Implement Runtime PM which will:
1) Without CONFIG_PM, clock is running whether Flexcan up or down.
2) With CONFIG_PM, clock enabled while Flexcan up and disabled when
   Flexcan down.
3) Disable clock when do system suspend and enable clock while system
   resume.
4) Make Power Domain framework be able to shutdown the corresponding
   power domain of this device.

Signed-off-by: Aisheng Dong <aisheng.dong@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Robert P. J. Day 26bca9fe5f can: Kconfig: correct history of the CAN protocol
Current history of CAN protocol is wrong, fix it in the Kconfig file.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Colin Ian King 64d6ce8fe4 can: xilinx_can: clean up indentation issue
A statement is indented one level too deep, fix this.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:55 +02:00
Appana Durga Kedareswara rao c223da6893 can: xilinx_can: Add support for CANFD FD frames
CANFD IP supports both CAN and CAN FD frames,
Existing driver supports only CAN frames, This patch
adds support for CAN FD frames.

Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Appana Durga Kedareswara rao 8dce7ea41a can: xilinx_can: Add cantype parameter in xcan_devtype_data struct
To differentiate between different CAN IP's this patch adds
cantype enum variable in the xcan_devtype_data structure

Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Appana Durga Kedareswara rao 3281b380ec can: xilinx_can: Fix flags field initialization for axi can and canps
AXI CAN IP and CANPS IP supports tx fifo empty feature, this patch updates
the flags field for the same.

Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Appana Durga Kedareswara rao c942a575b9 can: xilinx_can: Fix kernel doc warnings
This patch fixes below kernel doc warnings
warning: Function parameter or member 'priv' not described in
'xcan_write_frame'
warning: Function parameter or member 'skb' not described in
'xcan_start_xmit_fifo'
warning: Function parameter or member 'ndev' not described in
'xcan_start_xmit_fifo'
warning: Function parameter or member 'skb' not described in
'xcan_start_xmit_mailbox'
warning: Function parameter or member 'ndev' not described in
'xcan_start_xmit_mailbox'
warning: Function parameter or member 'priv' not described in
'xcan_rx_fifo_get_next_frame'

Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Appana Durga Kedareswara rao d38f9180da can: xilinx_can: Fix style issues
This patch fixes below checkpatch warnings and checks in the driver.

CHECK: Alignment should match open parenthesis
+       void (*write_reg)(const struct xcan_priv *priv, enum xcan_reg reg,
+                       u32 val);

CHECK: Alignment should match open parenthesis
+static void xcan_write_reg_le(const struct xcan_priv *priv, enum xcan_reg reg,
+                       u32 val)

CHECK: Alignment should match open parenthesis
+static void xcan_write_reg_be(const struct xcan_priv *priv, enum xcan_reg reg,
+                       u32 val)

CHECK: Alignment should match open parenthesis
+       netdev_dbg(ndev, "BRPR=0x%08x, BTR=0x%08x\n",
+                       priv->read_reg(priv, XCAN_BRPR_OFFSET),

CHECK: Alignment should match open parenthesis
+                       netdev_warn(ndev,
+                               "timed out for correct mode\n");

CHECK: Alignment should match open parenthesis
+       netdev_dbg(ndev, "status:#x%08x\n",
+                       priv->read_reg(priv, XCAN_SR_OFFSET));

CHECK: spaces preferred around that '-' (ctx:VxV)
+                       (CAN_EFF_ID_BITS-CAN_SFF_ID_BITS)) <<
                                        ^

CHECK: Alignment should match open parenthesis
+       netdev_dbg(ndev, "%s: error status register:0x%x\n",
+                       __func__, priv->read_reg(priv, XCAN_ESR_OFFSET));

WARNING: line over 80 characters
+                       offset = XCAN_RXMSG_2_FRAME_OFFSET(fsr & XCAN_FSR_RI_MASK);

WARNING: line over 80 characters
+                       offset = XCAN_RXMSG_FRAME_OFFSET(fsr & XCAN_FSR_RI_MASK);

WARNING: line over 80 characters
+               while ((isr & XCAN_IXR_TXOK_MASK) && !WARN_ON(++retries == 100)) {

WARNING: line over 80 characters
+                       priv->write_reg(priv, XCAN_ICR_OFFSET, XCAN_IXR_TXOK_MASK);

CHECK: Alignment should match open parenthesis
+               netdev_err(ndev, "%s: pm_runtime_get failed(%d)\n",
+                               __func__, ret);

CHECK: Alignment should match open parenthesis
+       ret = request_irq(ndev->irq, xcan_interrupt, priv->irq_flags,
+                       ndev->name, ndev);

CHECK: Alignment should match open parenthesis
+static int xcan_get_berr_counter(const struct net_device *ndev,
+                                       struct can_berr_counter *bec)

CHECK: Alignment should match open parenthesis
+               netdev_err(ndev, "%s: pm_runtime_get failed(%d)\n",
+                               __func__, ret);

CHECK: Please don't use multiple blank lines
+
+

CHECK: Alignment should match open parenthesis
+               netdev_err(ndev, "%s: pm_runtime_get failed(%d)\n",
+                       __func__, ret);`

Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Dan Murphy 5443c226ba can: tcan4x5x: Add tcan4x5x driver to the kernel
Add the TCAN4x5x SPI CAN driver.

This device uses the Bosch MCAN IP core along with a SPI interface map.
Register to the MCAN common core code to manage the MCAN IP.

This device has a special method to indicate a write/read operation on
the data payload.

Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Dan Murphy 4edd396a19 dt-bindings: can: tcan4x5x: Add DT bindings for TCAN4x5X driver
DT binding documentation for TI TCAN4x5x driver.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Dan Murphy 441ac34016 can: m_can: Rename m_can_priv to m_can_classdev
Rename the common m_can_priv class structure to m_can_classdev as this
is more descriptive.

Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Acked-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Dan Murphy f524f829b7 can: m_can: Create a m_can platform framework
Create a m_can platform framework that peripheral
devices can register to and use common code and register sets.
The peripheral devices may provide read/write and configuration
support of the IP.

Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Acked-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Dan Murphy 69652195b6 can: m_can: Fix checkpatch issues on existing code
Fix checkpatch issues found during the m_can framework creation, before
framework creation in the following patches.

Fix these 4 check issues:
CHECK: Unnecessary parentheses around 'cdev->can.state != CAN_STATE_ERROR_WARNING'
	if (psr & PSR_EW &&
	    (cdev->can.state != CAN_STATE_ERROR_WARNING)) {

CHECK: Unnecessary parentheses around 'cdev->can.state != CAN_STATE_ERROR_PASSIVE'
	if ((psr & PSR_EP) &&
	    (cdev->can.state != CAN_STATE_ERROR_PASSIVE)) {

CHECK: Unnecessary parentheses around 'cdev->can.state != CAN_STATE_BUS_OFF'
	if ((psr & PSR_BO) &&
	    (cdev->can.state != CAN_STATE_BUS_OFF)) {

CHECK: Unnecessary parentheses around 'priv->version <= 31'
	if ((priv->version <= 31) && (irqstatus & IR_MRAF) &&
	    (m_can_read(priv, M_CAN_ECR) & ECR_RP)) {

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Acked-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Gustavo A. R. Silva b07fbf2397 can: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warnings:

drivers/net/can/peak_canfd/peak_pciefd_main.c:668:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/spi/mcp251x.c:875:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/at91_can.c:895:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/at91_can.c:953:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/usb/peak_usb/pcan_usb.c: In function ‘pcan_usb_decode_error’:
drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (n & PCAN_USB_ERROR_BUS_LIGHT) {
      ^
drivers/net/can/usb/peak_usb/pcan_usb.c:428:2: note: here
  case CAN_STATE_ERROR_WARNING:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling
-Wimplicit-fallthrough.

Notice that in some cases spelling mistakes were fixed.
In other cases, the /* fall through */ comment is placed
at the bottom of the case statement, which is what GCC
is expecting to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> # for the at91_can.c
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:54 +02:00
Henning Colliander 26ad340e58 can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices
This patch adds support for Kvaser PCIEcan devices. This includes
support for up to 4 CAN channels on a single card, depending on device.

Signed-off-by: Henning Colliander <henning.colliander@evidente.se>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Christer Beskow <chbe@kvaser.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:53 +02:00
Gustavo A. R. Silva d9e5d174ad can: kvaser_usb: Use struct_size() in alloc_candev()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct foo {
    int stuff;
    void *entry[];
};

instance = alloc(sizeof(struct foo) + count * sizeof(void *));

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = alloc(struct_size(instance, entry, count));

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:31:53 +02:00
Ji-Ze Hong (Peter Hong) 2d91fdccad can: sja1000: f81601: add Fintek F81601 support
This patch add support for Fintek PCIE to 2 CAN controller support

Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 10:30:37 +02:00
Marc Kleine-Budde 4dfc39e1b6 can: sja1000: Makefile/Kconfig: sort alphabetically
This patch sorts the drivers in the Makefile alphabetically and arranges
the Kconfig file accordingly.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 08:50:18 +02:00
Marc Kleine-Budde 61670d62bd MAINTAINERS: can: add missing files to CAN NETWORK DRIVERS and CAN NETWORK LAYER
This patch adds missing files to the CAN NETWORK DRIVERS and CAN NETWORK
LAYER entry.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-07-24 08:50:17 +02:00
Roman Mashak 3e3bb69589 tc-testing: added tdc tests for [b|p]fifo qdisc
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-23 14:08:15 -07:00
Andy Shevchenko ce103204cb hv_sock: Use consistent types for UUIDs
The rest of Hyper-V code is using new types for UUID handling.
Convert hv_sock as well.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-23 13:58:32 -07:00