Commit Graph

112568 Commits

Author SHA1 Message Date
Andrey Turkin
ffcdd1197d vmxnet3: Implement ethtool's get_channels command
Some tools (e.g. libxdp) use that information.

Signed-off-by: Andrey Turkin <andrey.turkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 10:21:15 +01:00
David S. Miller
50ad649dd7 Merge tag 'linux-can-next-for-5.20-20220720' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:

====================
this is a pull request of 29 patches for net-next/master.

The first 6 patches target the slcan driver. Dan Carpenter contributes
a hardening patch, followed by 5 cleanup patches.

Biju Das contributes 5 patches to prepare the sja1000 driver to
support the Renesas RZ/N1 SJA1000 CAN controller.

Dario Binacchi's patch for the slcan driver fixes a sleep with held
spin lock.

Another patch by Dario Binacchi fixes a wrong comment in the c_can
driver.

Pavel Pisa updates the CTU CAN FD IP core registers.

Stephane Grosjean contributes 3 patches to the peak_usb driver for
cleanups and support of a new MCU.

The last 12 patches are by Vincent Mailhol, they fix and improve the
txerr and rxerr reporting in all CAN drivers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 10:17:05 +01:00
Kuniyuki Iwashima
3666f666e9 tcp: Fix data-races around sysctl knobs related to SYN option.
While reading these knobs, they can be changed concurrently.
Thus, we need to add READ_ONCE() to their readers.

  - tcp_sack
  - tcp_window_scaling
  - tcp_timestamps

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 10:14:49 +01:00
Kuniyuki Iwashima
8895a9c2ac ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
While reading sysctl_fib_multipath_hash_fields, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: ce5c9c20d3 ("ipv4: Add a sysctl to control multipath hash fields")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 10:14:49 +01:00
Kuniyuki Iwashima
7998c12a08 ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.
While reading sysctl_fib_multipath_hash_policy, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: bf4e0a3db9 ("net: ipv4: add support for ECMP hash policy choice")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 10:14:49 +01:00
Liang He
7b66dfcc6e can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()
We should use of_node_put() for the reference returned by
of_get_child_by_name() which has increased the refcount.

Fixes: 45721c406d ("can: rcar_canfd: Add support for r8a779a0 SoC")
Link: https://lore.kernel.org/all/20220712095623.364287-1-windhl@126.com
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 10:20:19 +02:00
Marc Kleine-Budde
db87c005b9 can: mcp251xfd: fix detection of mcp251863
In commit c6f2a617a0 ("can: mcp251xfd: add support for mcp251863")
support for the mcp251863 was added. However it was not taken into
account that the auto detection of the chip model cannot distinguish
between mcp2518fd and mcp251863 and would lead to a warning message if
the firmware specifies a mcp251863.

Fix auto detection: If a mcp2518fd compatible chip is found, keep the
mcp251863 if specified by firmware, use mcp2518fd instead.

Link: https://lore.kernel.org/all/20220706064835.1848864-1-mkl@pengutronix.de
Fixes: c6f2a617a0 ("can: mcp251xfd: add support for mcp251863")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 10:20:19 +02:00
Vincent Mailhol
3e5c291c79 can: add CAN_ERR_CNT flag to notify availability of error counter
Add a dedicated flag in uapi/linux/can/error.h to notify the userland
that fields data[6] and data[7] of the CAN error frame were
respectively populated with the tx and rx error counters.

For all driver tree-wide, set up this flags whenever needed.

Link: https://lore.kernel.org/all/20220719143550.3681-12-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:27:37 +02:00
Vincent Mailhol
aebe8a2433 can: usb_8dev: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 0024d8ad16 ("can: usb_8dev: Add support for USB2CAN interface from 8 devices")
Link: https://lore.kernel.org/all/20220719143550.3681-10-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:50 +02:00
Vincent Mailhol
a57732084e can: kvaser_usb_leaf: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 7259124eac ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c")
Link: https://lore.kernel.org/all/20220719143550.3681-9-mailhol.vincent@wanadoo.fr
CC: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
936e905953 can: kvaser_usb_hydra: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: aec5fb2268 ("can: kvaser_usb: Add support for Kvaser USB hydra family")
Link: https://lore.kernel.org/all/20220719143550.3681-8-mailhol.vincent@wanadoo.fr
CC: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
0ac15a8f66 can: sun4i_can: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 0738eff14d ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Link: https://lore.kernel.org/all/20220719143550.3681-7-mailhol.vincent@wanadoo.fr
CC: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
a22bd630cf can: hi311x: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 57e83fb9b7 ("can: hi311x: Add Holt HI-311x CAN driver")
Link: https://lore.kernel.org/all/20220719143550.3681-6-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
ce0e7aeb67 can: slcan: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

alloc_can_err_skb() already sets cf to NULL if the allocation fails [1],
so the redundant cf = NULL assignment gets removed.

[1] https://elixir.bootlin.com/linux/latest/source/drivers/net/can/dev/skb.c#L187

Fixes: 0a9cdcf098 ("can: slcan: extend the protocol with CAN state info")
Link: https://lore.kernel.org/all/20220719143550.3681-5-mailhol.vincent@wanadoo.fr
CC: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
164d7cb2d5 can: sja1000: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 215db1856e ("can: sja1000: Consolidate and unify state change handling")
Link: https://lore.kernel.org/all/20220719143550.3681-4-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
a37b7245e8 can: rcar_can: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: fd1159318e ("can: add Renesas R-Car CAN driver")
Link: https://lore.kernel.org/all/20220719143550.3681-3-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:49 +02:00
Vincent Mailhol
3a5c7e4611 can: pch_can: do not report txerr and rxerr during bus-off
During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 0c78ab76a0 ("pch_can: Add setting TEC/REC statistics processing")
Link: https://lore.kernel.org/all/20220719143550.3681-2-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20 09:26:48 +02:00
Jakub Kicinski
c2fe9ec397 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
1GbE Intel Wired LAN Driver Updates 2022-07-18

This series contains updates to igc driver only.

Kurt Kanzenbach adds support for Qbv schedules where one queue stays open
in consecutive entries.

Sasha removes an unused define and field.

* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  igc: Remove forced_speed_duplex value
  igc: Remove MSI-X PBA Clear register
  igc: Lift TAPRIO schedule restriction
====================

Link: https://lore.kernel.org/r/20220718180109.4114540-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19 17:45:05 -07:00
Jakub Kicinski
48ea8ea32d Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-07-18

This series contains updates to iavf driver only.

Przemyslaw fixes handling of multiple VLAN requests to account for
individual errors instead of rejecting them all. He removes incorrect
implementations of ETHTOOL_COALESCE_MAX_FRAMES and
ETHTOOL_COALESCE_MAX_FRAMES_IRQ.

He also corrects an issue with NULL pointer caused by improper handling of
dummy receive descriptors. Finally, he corrects debug prints reporting an
unknown state.

* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  iavf: Fix missing state logs
  iavf: Fix handling of dummy receive descriptors
  iavf: Disallow changing rx/tx-frames and rx/tx-frames-irq
  iavf: Fix VLAN_V2 addition/rejection
====================

Link: https://lore.kernel.org/r/20220718174807.4113582-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19 17:43:02 -07:00
Lorenzo Bianconi
53eb9b0456 net: ethernet: mtk_ppe: fix possible NULL pointer dereference in mtk_flow_get_wdma_info
odev pointer can be NULL in mtk_flow_offload_replace routine according
to the flower action rules. Fix possible NULL pointer dereference in
mtk_flow_get_wdma_info.

Fixes: a333215e10 ("net: ethernet: mtk_eth_soc: implement flow offloading to WED devices")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/4e1685bc4976e21e364055f6bee86261f8f9ee93.1658137753.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19 17:27:18 -07:00
Hayes Wang
cdf0b86b25 r8152: fix a WOL issue
This fixes that the platform is waked by an unexpected packet. The
size and range of FIFO is different when the device enters S3 state,
so it is necessary to correct some settings when suspending.

Regardless of jumbo frame, set RMS to 1522 and MTPS to MTPS_DEFAULT.
Besides, enable MCU_BORW_EN to update the method of calculating the
pointer of data. Then, the hardware could get the correct data.

Fixes: 195aae321c ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Link: https://lore.kernel.org/r/20220718082120.10957-391-nic_swsd@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19 17:10:56 -07:00
Edward Cree
1f17708b47 sfc: update MCDI protocol headers
Link: https://lore.kernel.org/r/cover.1657878101.git.ecree.xilinx@gmail.com
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19 13:37:04 -07:00
Roi Dayan
22df2e9362 net/mlx5: CT: Remove warning of ignore_flow_level support for non PF
ignore_flow_level isn't supported for SFs, and so it causes
post_act and ct to warn about it per SF.
Apply the warning only for PF.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:54 -07:00
Aya Levin
58a518948f net/mlx5e: Add resiliency for PTP TX port timestamp
PTP TX port timestamp relies on receiving 2 CQEs for each outgoing
packet (WQE). The regular CQE has a less accurate timestamp than the
wire CQE. On link change, the wire CQE may get lost. Let the driver
detect and restore the relation between the CQEs, and re-sync after
timeout.

Add resiliency for this as follows: add id (producer counter)
into the WQE's metadata. This id will be received in the wire
CQE (in wqe_counter field). On handling the wire CQE, if there is no
match, replay the PTP application with the time-stamp from the regular
CQE and restore the sync between the CQEs and their SKBs. This patch
adds 2 ptp counters:
1) ptp_cq0_resync_event: number of times a mismatch was detected between
   the regular CQE and the wire CQE.
2) ptp_cq0_resync_cqe: total amount of missing wire CQEs.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:54 -07:00
Moshe Tal
462b005999 net/mlx5e: HTB, move htb functions to a new file
Move htb related functions and data to a separated file for better
encapsulation.

Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:53 -07:00
Moshe Tal
3685eed56f net/mlx5e: HTB, change functions name to follow convention
Following the change of the functions to be object like, change also
the names.

Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:52 -07:00
Moshe Tal
28df4a0117 net/mlx5e: HTB, remove priv from htb function calls
As a step to make htb self-contained replace the passing of priv as a
parameter to htb function calls with members in the htb struct.

Full decoupling the htb from priv will require more work, so for now
leave the priv as one of the members in the htb struct, to be replaced
by channels in a future commit.

Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:52 -07:00
Saeed Mahameed
aaffda6b36 net/mlx5e: HTB, hide and dynamically allocate mlx5e_htb structure
Move structure mlx5e_htb from the main driver include file "en.h" to be
hidden in qos.c where the qos functionality is implemented, forward
declare it for the rest of the driver and allocate it dynamically upon
user demand only.

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
2022-07-19 13:32:51 -07:00
Moshe Tal
db83f24d89 net/mlx5e: HTB, move stats and max_sqs to priv
Preparation for dynamic allocation of the HTB struct.
The statistics should be preserved even when the struct is de-allocated.

Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:51 -07:00
Moshe Tal
66d9593648 net/mlx5e: HTB, move section comment to the right place
mlx5e_get_qos_sq is a part of the SQ lifecycle, so need be under the
title.

Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:50 -07:00
Moshe Tal
4f8d1d3adc net/mlx5e: HTB, move ids to selq_params struct
HTB id fields are needed for selecting queue. Moving them to the
selq_params struct will simplify synchronization between control flow
and mlx5e_select_queues and will keep the IDs in the hot cacheline of
mlx5e_selq_params.

Replace mlx5e_selq_prepare() with separate functions that change subsets
of parameters, while keeping the rest.

This also will be useful to hide mlx5e_htb structure from the rest of the
driver in a later patch in this series.

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
2022-07-19 13:32:50 -07:00
Saeed Mahameed
efe317997e net/mlx5e: HTB, reduce visibility of htb functions
No need to expose all htb tc functions to the main driver file,
expose only the master htb tc function mlx5e_htb_setup_tc()
which selects the internal "now static" function to call.

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
2022-07-19 13:32:49 -07:00
Moshe Tal
0bb7228f70 net/mlx5e: Fix mqprio_rl handling on devlink reload
Keep mqprio_rl data to params and restore the configuration in case of
devlink reload.
Change the location of mqprio_rl resources cleanup so it will be done
also in reload flow.

Also, remove the rl pointer from the params, since this is dynamic object
and saved to priv.

Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:49 -07:00
Gal Pressman
07071e47da net/mlx5e: Report header-data split state through ethtool
HW-GRO (SHAMPO) packet merger scheme implies header-data split in the
driver, report it through the ethtool interface.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-07-19 13:32:48 -07:00
Stephane Grosjean
4f23248246 can: peak_usb: include support for a new MCU
The CANFD-USB PCAN-USB FD interface undergoes an internal component
change that requires a slight modification of its drivers, which leads
them to dynamically use endpoint numbers provided by the interface
itself. In addition to a change in the calls to the USB functions
exported by the kernel, the detection of the USB interface dedicated
to CAN must also be modified, as some PEAK-System devices support
other interfaces than CAN.

Link: https://lore.kernel.org/all/20220719120632.26774-3-s.grosjean@peak-system.com
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
[mkl: add missing cpu_to_le16() conversion]
[mkl: fix networking block comment style]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 21:41:38 +02:00
Stephane Grosjean
a0cf2fe6cf can: peak_usb: correction of an initially misnamed field name
The data structure returned from the USB device contains a number
flashed by the user and not the serial number of the device.

Link: https://lore.kernel.org/all/20220719120632.26774-2-s.grosjean@peak-system.com
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 21:22:05 +02:00
Stephane Grosjean
92505df464 can: peak_usb: pcan_dump_mem(): mark input prompt and data pointer as const
Mark the input prompt and data pointer as const.

Link: https://lore.kernel.org/all/20220719120632.26774-1-s.grosjean@peak-system.com
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
[mkl: mark data pointer as const, too; update commit message]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 21:20:12 +02:00
Pavel Pisa
9e7c9b8eb7 can: ctucanfd: Update CTU CAN FD IP core registers to match version 3.x.
The update is compatible/pure extension of 2.x IP core version

 - new option for 2, 4, or 8 Tx buffers option during synthesis.
   The 2.x version has fixed 4 Tx buffers. 3.x version default
   is 4 as well
 - new REG_TX_COMMAND_TXT_BUFFER_COUNT provides synthesis
   choice. When read as 0 assume 2.x core with fixed 4 Tx buffers.
 - new REG_ERR_CAPT_TS_BITS field to provide most significant
   active/implemented timestamp bit. For 2.x read as zero,
   assume value 63 is such case for 64 bit counter.
 - new REG_MODE_RXBAM bit which controls automatic advance
   to next word after Rx FIFO register read. Bit is set
   to 1 by default after the core reset (REG_MODE_RST)
   and value 1 has to be preserved for the normal ctucanfd
   Linux driver operation. Even preceding driver version
   resets core and then modifies only known/required MODE
   register bits so backward and forward compatibility is
   ensured.

See complete datasheet for time-triggered and other
updated capabilities

  http://canbus.pages.fel.cvut.cz/ctucanfd_ip_core/doc/Datasheet.pdf

The fields related to ongoing Ondrej Ille's work
on fault tolerant version with parity protected buffers
and FIFOs are not included for now. Their inclusion will
be considered when design is settled and tested.

Link: https://lore.kernel.org/all/14a98ed1829121f0f3bde784f1aa533bc3cc7fe0.1658139843.git.pisa@cmp.felk.cvut.cz
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:57:46 +02:00
Dario Binacchi
4940eb51fc can: c_can: remove wrong comment
The comment referred to a status (warning) other than the one that was
being managed (active error).

Link: https://lore.kernel.org/all/20220716170112.2020291-1-dario.binacchi@amarulasolutions.com
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:55:41 +02:00
Dario Binacchi
c688702326 can: slcan: do not sleep with a spin lock held
We can't call close_candev() with a spin lock held, so release the lock
before calling it. After calling close_candev(), we can update the
fields of the private `struct can_priv' without having to acquire the
lock.

Fixes: c4e54b063f ("can: slcan: use CAN network device driver API")
Link: https://lore.kernel.org/linux-kernel/Ysrf1Yc5DaRGN1WE@xsang-OptiPlex-9020/
Link: https://lore.kernel.org/all/20220715072951.859586-1-dario.binacchi@amarulasolutions.com
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:54:53 +02:00
Biju Das
6d5fe10796 can: sja1000: Change the return type as void for SoC specific init
Change the return type as void for SoC specific init function as it
always return 0.

Link: https://lore.kernel.org/all/20220710115248.190280-6-biju.das.jz@bp.renesas.com
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:46:59 +02:00
Biju Das
63ab1b6369 can: sja1000: Use device_get_match_data to get device data
This patch replaces of_match_device->device_get_match_data
to get pointer to device data.

Link: https://lore.kernel.org/all/20220710115248.190280-5-biju.das.jz@bp.renesas.com
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:46:59 +02:00
Biju Das
2d99bfbf33 can: sja1000: Add Quirk for RZ/N1 SJA1000 CAN controller
As per Chapter 6.5.16 of the RZ/N1 Peripheral Manual, The SJA1000
CAN controller does not support Clock Divider Register compared to
the reference Philips SJA1000 device.

This patch adds a device quirk to handle this difference.

Link: https://lore.kernel.org/all/20220710115248.190280-4-biju.das.jz@bp.renesas.com
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:46:59 +02:00
Marc Kleine-Budde
18de712a58 can: slcan: clean up if/else
Remove braces after if() for single statement blocks, also remove else
after return() in if() block.

Link: https://lore.kernel.org/all/20220704125954.1587880-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:30:14 +02:00
Marc Kleine-Budde
69a6539632 can: slcan: convert comparison to NULL into !val
All comparison to NULL could be written "!val", convert them to make
checkpatch happy.

Link: https://lore.kernel.org/all/20220704125954.1587880-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:30:14 +02:00
Marc Kleine-Budde
f07d9e3c84 can: slcan: fix whitespace issues
Add and remove whitespace to make checkpatch happy.

Link: https://lore.kernel.org/all/20220704125954.1587880-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:30:14 +02:00
Marc Kleine-Budde
ded5fa885b can: slcan: slcan_init() convert printk(LEVEL ...) to pr_level()
Convert the last printk(LEVEL ...) to pr_level().

Link: https://lore.kernel.org/all/20220704125954.1587880-3-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:30:14 +02:00
Marc Kleine-Budde
71f3a4cc74 can: slcan: convert comments to network style comments
Convert all comments to network subsystem style comments.

Link: https://lore.kernel.org/all/20220704125954.1587880-2-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:30:14 +02:00
Dan Carpenter
0159a9305d can: slcan: use scnprintf() as a hardening measure
The snprintf() function returns the number of bytes which *would* have
been copied if there were no space. So, since this code does not check
the return value, there if the buffer was not large enough then there
would be a buffer overflow two lines later when it does:

	actual = sl->tty->ops->write(sl->tty, sl->xbuff, n);

Use scnprintf() instead because that returns the number of bytes which
were actually copied.

Fixes: 52f9ac85b8 ("can: slcan: allow to send commands to the adapter")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/all/YsVA9KoY/ZSvNGYk@kili
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19 20:29:36 +02:00
Arun Ramadoss
769e2695be net: dsa: microchip: fix the missing ksz8_r_mib_cnt
During the refactoring for the ksz8_dev_ops from ksz8795.c to
ksz_common.c, the ksz8_r_mib_cnt has been missed. So this patch adds the
missing one.

Fixes: 6ec23aaaac ("net: dsa: microchip: move ksz_dev_ops to ksz_common.c")
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220718061803.4939-1-arun.ramadoss@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19 15:33:51 +02:00