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Replace SET_RUNTIME_PM_OPS()/SET SYSTEM_SLEEP_PM_OPS() with their modern
RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() alternatives.
The combined usage of pm_ptr() and RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the __maybe_unused notation from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://patch.msgid.link/20240806021628.2524089-1-festevam@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use the `DEFINE_RAW_FLEX()` helper for an on-stack definition of
a flexible structure where the size of the flexible-array member
is known at compile-time, and refactor the rest of the code,
accordingly.
So, with these changes, fix the following warning:
drivers/net/ethernet/fungible/funcore/fun_dev.c:550:43: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/ZrDwEugW7DR/FlP5@cute
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jason Xing says:
===================
tcp: completely support active reset
This time the patch series finally covers all the cases in the active
reset logic. After this, we can know the related exact reason(s).
v4
Link:
1. revise the changelog to avoid future confusion in patch [5/7] (Eric)
2. revise the changelog of patch [6/7] like above.
3. add reviewed-by tags (Eric)
v3
Link: https://lore.kernel.org/all/20240731120955.23542-1-kerneljasonxing@gmail.com/
1. introduce TCP_DISCONNECT_WITH_DATA reason (Eric)
2. use a better name 'TCP_KEEPALIVE_TIMEOUT' (Eric)
3. add three reviewed-by tags (Eric)
v2
Link: https://lore.kernel.org/all/20240730133513.99986-1-kerneljasonxing@gmail.com/
1. use RFC 9293 in the comment and changelog instead of old RFC 793
2. correct the comment and changelog in patch 5
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now it's time to let it work by using the 'reason' parameter in
the trace world :)
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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reset
When user tries to disconnect a socket and there are more data written
into tcp write queue, we should tell users about this reset reason.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introducing this to show the users the reason of keepalive timeout.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introducing a new type TCP_STATE to handle some reset conditions
appearing in RFC 793 due to its socket state. Actually, we can look
into RFC 9293 which has no discrepancy about this part.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introducing a new type TCP_ABORT_ON_MEMORY for tcp reset reason to handle
out of memory case.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introducing a new type TCP_ABORT_ON_LINGER for tcp reset reason to handle
negative linger value case.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introducing a new type TCP_ABORT_ON_CLOSE for tcp reset reason to handle
the case where more data is unread in closing phase.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2024-08-06
The first patch is by Frank Li and adds the can-transceiver property
to the flexcan device-tree bindings.
Haibo Chen contributes 2 patches for the flexcan driver to add wakeup
support for the imx95.
The 2 patches by Stefan Mätje for the esd_402_pci driver clean up the
driver and add support for the one-shot mode.
The last 15 patches are by Jimmy Assarsson and add hardware timestamp
support for all devices covered by the kvaser_usb driver.
* tag 'linux-can-next-for-6.12-20240806' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
can: kvaser_usb: Rename kvaser_usb_{ethtool,netdev}_ops_hwts to kvaser_usb_{ethtool,netdev}_ops
can: kvaser_usb: Remove struct variables kvaser_usb_{ethtool,netdev}_ops
can: kvaser_usb: Remove KVASER_USB_QUIRK_HAS_HARDWARE_TIMESTAMP
can: kvaser_usb: leaf: Add hardware timestamp support to usbcan devices
can: kvaser_usb: leaf: Store MSB of timestamp
can: kvaser_usb: leaf: Add structs for Tx ACK and clock overflow commands
can: kvaser_usb: leaf: Add hardware timestamp support to leaf based devices
can: kvaser_usb: leaf: kvaser_usb_leaf_tx_acknowledge: Rename local variable
can: kvaser_usb: leaf: Replace kvaser_usb_leaf_m32c_dev_cfg with kvaser_usb_leaf_m32c_dev_cfg_{16,24,32}mhz
can: kvaser_usb: leaf: Assign correct timestamp_freq for kvaser_usb_leaf_imx_dev_cfg_{16,24,32}mhz
can: kvaser_usb: leaf: Add struct for Tx ACK commands
can: kvaser_usb: hydra: Set hardware timestamp on transmitted packets
can: kvaser_usb: hydra: Add struct for Tx ACK commands
can: kvaser_usb: hydra: kvaser_usb_hydra_ktime_from_rx_cmd: Drop {rx_} in function name
can: kvaser_usb: Add helper functions to convert device timestamp into ktime
can: esd_402_pci: Add support for one-shot mode
can: esd_402_pci: Rename esdACC CTRL register macros
can: flexcan: add wakeup support for imx95
dt-bindings: can: fsl,flexcan: move fsl,imx95-flexcan standalone
dt-bindings: can: fsl,flexcan: add common 'can-transceiver' for fsl,flexcan
====================
Link: https://patch.msgid.link/20240806074731.1905378-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Compiling libcxgb_ppm.c results in several sparse warnings:
libcxgb_ppm.c:368:15: warning: incorrect type in assignment (different address spaces)
libcxgb_ppm.c:368:15: expected struct cxgbi_ppm_pool *pools
libcxgb_ppm.c:368:15: got void [noderef] __percpu *_res
libcxgb_ppm.c:374:48: warning: incorrect type in initializer (different address spaces)
libcxgb_ppm.c:374:48: expected void const [noderef] __percpu *__vpp_verify
libcxgb_ppm.c:374:48: got struct cxgbi_ppm_pool *
libcxgb_ppm.c:484:19: warning: incorrect type in assignment (different address spaces)
libcxgb_ppm.c:484:19: expected struct cxgbi_ppm_pool [noderef] __percpu *pool
libcxgb_ppm.c:484:19: got struct cxgbi_ppm_pool *[assigned] pool
libcxgb_ppm.c:511:21: warning: incorrect type in argument 1 (different address spaces)
libcxgb_ppm.c:511:21: expected void [noderef] __percpu *__pdata
libcxgb_ppm.c:511:21: got struct cxgbi_ppm_pool *[assigned] pool
Add __percpu annotation to *pools and *pool percpu pointers and to
ppm_alloc_cpu_pool() function that returns percpu pointer to fix
these warnings.
Compile tested only, but there is no difference in the resulting object file.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240804154635.4249-1-ubizjak@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If the PHY of the mido bus is enabled with Wake-on-LAN (WOL),
we cannot suspend the PHY. Although the WOL status has been
checked in phy_suspend(), returning -EBUSY(-16) would cause
the Power Management (PM) to fail to suspend. Since
phy_suspend() is an exported symbol (EXPORT_SYMBOL),
timely error reporting is needed. Therefore, an additional
check is performed here. If the PHY of the mido bus is enabled
with WOL, we skip calling phy_suspend() to avoid PM failure.
From the following logs, it has been observed that the phydev->attached_dev
is NULL, phydev is "stmmac-0:01", it not attached, but it will affect suspend
and resume.The actually attached "stmmac-0:00" will not dpm_run_callback():
mdio_bus_phy_suspend().
init log:
[ 5.932502] YT8521 Gigabit Ethernet stmmac-0:00: attached PHY driver
(mii_bus:phy_addr=stmmac-0:00, irq=POLL)
[ 5.932512] YT8521 Gigabit Ethernet stmmac-0:01: attached PHY driver
(mii_bus:phy_addr=stmmac-0:01, irq=POLL)
[ 24.566289] YT8521 Gigabit Ethernet stmmac-0:00: yt8521_read_status,
link down, media: UTP
suspend log:
[ 322.631362] OOM killer disabled.
[ 322.631364] Freezing remaining freezable tasks
[ 322.632536] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)
[ 322.632540] printk: Suspending console(s) (use no_console_suspend to debug)
[ 322.633052] YT8521 Gigabit Ethernet stmmac-0:01:
PM: dpm_run_callback(): mdio_bus_phy_suspend+0x0/0x110 [libphy] returns -16
[ 322.633071] YT8521 Gigabit Ethernet stmmac-0:01:
PM: failed to suspend: error -16
[ 322.669699] PM: Some devices failed to suspend, or early wake event detected
[ 322.669949] OOM killer enabled.
[ 322.669951] Restarting tasks ... done.
[ 322.671008] random: crng reseeded on system resumption
[ 322.671014] PM: suspend exit
Add a function that phylib can inquire of the driver whether WoL
has been enabled at the PHY.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Youwan Wang <youwan@nfschina.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Link: https://patch.msgid.link/20240731091537.771391-1-youwan@nfschina.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The current implementation of netpoll in veth devices leads to
suboptimal behavior, as it triggers warnings due to the invocation of
__netif_rx() within a softirq context. This is not compliant with
expected practices, as __netif_rx() has the following statement:
lockdep_assert_once(hardirq_count() | softirq_count());
Given that veth devices typically do not benefit from the
functionalities provided by netpoll, Disable netpoll for veth
interfaces.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240805094012.1843247-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ethtool_cmis_page_fini() is declared but never implemented.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Link: https://patch.msgid.link/20240803112213.4044015-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Using clamp instead of min(max()) is easier to read and it matches even
better the comment just above it.
It also reduces the size of the preprocessed files by ~ 2.5 ko.
(see [1] for a discussion about it)
$ ls -l net/ipv4/tcp_htcp*.i
5576024 27 juil. 10:19 net/ipv4/tcp_htcp.old.i
5573550 27 juil. 10:21 net/ipv4/tcp_htcp.new.i
[1]: https://lore.kernel.org/all/23bdb6fc8d884ceebeb6e8b8653b8cfe@AcuMS.aculab.com/
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/561bb4974499a328ac39aff31858465d9bd12b1c.1722752370.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Take into account return value from reset_control_bulk_assert and
reset_control_bulk_deassert routines in airoha_hw_init().
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/f49dc04a87653e0155f4fab3e3eb584785c8ad6a.1722699555.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Point to the nvidia.com domain.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240805052202.2005316-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tariq Toukan says:
====================
mlx5 PTM cross timestamping support
This patchset by Rahul and Carolina adds PTM (Precision Time Measurement)
support to the mlx5 driver.
PTM is a PCI extended capability introduced by PCI-SIG for providing an
accurate read of the device clock offset without being impacted by
asymmetric bus transfer rates.
The performance of PTM on ConnectX-7 was evaluated using both real-time
(RTC) and free-running (FRC) clocks under traffic and no traffic
conditions. Tests with phc2sys measured the maximum offset values at a 50Hz
rate, with and without PTM.
Results:
1. No traffic
+-----+--------+--------+
| | No-PTM | PTM |
+-----+--------+--------+
| FRC | 125 ns | <29 ns |
+-----+--------+--------+
| RTC | 248 ns | <34 ns |
+-----+--------+--------+
2. With traffic
+-----+--------+--------+
| | No-PTM | PTM |
+-----+--------+--------+
| FRC | 254 ns | <40 ns |
+-----+--------+--------+
| RTC | 255 ns | <45 ns |
+-----+--------+--------+
v2: https://lore.kernel.org/d1dba3e1-2ecc-4fdf-a23b-7696c4bccf45@gmail.com
====================
Link: https://patch.msgid.link/20240730134055.1835261-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Expose Precision Time Measurement support through related PTP ioctl.
The performance of PTM on ConnectX-7 was evaluated using both real-time
(RTC) and free-running (FRC) clocks under traffic and no traffic
conditions. Tests with phc2sys measured the maximum offset values at a 50Hz
rate, with and without PTM.
Results:
1. No traffic
+-----+--------+--------+
| | No-PTM | PTM |
+-----+--------+--------+
| FRC | 125 ns | <29 ns |
+-----+--------+--------+
| RTC | 248 ns | <34 ns |
+-----+--------+--------+
2. With traffic
+-----+--------+--------+
| | No-PTM | PTM |
+-----+--------+--------+
| FRC | 254 ns | <40 ns |
+-----+--------+--------+
| RTC | 255 ns | <45 ns |
+-----+--------+--------+
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Co-developed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20240730134055.1835261-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since the kernel doesn't support enabling Precision Time Measurement
for an endpoint device, enable the PTM PCI capability in the driver.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20240730134055.1835261-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Make Management Precision Time Measurement (MTPTM) register and Management
Cross Timestamp (MTCTR) register usable in mlx5 driver.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20240730134055.1835261-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There are a couple of statements with two following semicolons,
replace these with just one semicolon.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240802113436.448939-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Eric Dumazet says:
====================
net: constify 'struct net' parameter of socket lookups
We should keep const qualifiers whenever possible.
This series should remove the need for Tom patch in :
Link: https://lore.kernel.org/netdev/20240731172332.683815-2-tom@herbertland.com/
====================
Link: https://patch.msgid.link/20240802134029.3748005-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Following helpers do not touch their 'struct net' argument.
- udp6_lib_lookup()
- __udp6_lib_lookup()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240802134029.3748005-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Following helpers do not touch their struct net argument:
- bpf_sk_lookup_run_v6()
- __inet6_lookup_established()
- inet6_lookup_reuseport()
- inet6_lookup_listener()
- inet6_lookup_run_sk_lookup()
- __inet6_lookup()
- inet6_lookup()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240802134029.3748005-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Following helpers do not touch their 'struct net' argument.
- udp_sk_bound_dev_eq()
- udp4_lib_lookup()
- __udp4_lib_lookup()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240802134029.3748005-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Following helpers do not touch their struct net argument:
- bpf_sk_lookup_run_v4()
- inet_lookup_reuseport()
- inet_lhash2_lookup()
- inet_lookup_run_sk_lookup()
- __inet_lookup_listener()
- __inet_lookup_established()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240802134029.3748005-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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inet_sk_bound_dev_eq() and its callers do not modify the net structure.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240802134029.3748005-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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devices"
Jimmy Assarsson <extja@kvaser.com> says:
This patch series add hardware timestamp support to all devices supported
by the kvaser_usb driver.
The first patches resolves a known issue; "Hardware timestamps are not set
for CAN Tx frames". I can't remember why this wasn't implemented in the
first version of the hydra driver.
Followed by, hardware timestamp support for leaf and usbcan based devices.
The final patches are removing code used for selecting the correct ethtool
and netdev ops.
Note: This patch series depends on patch
"can: kvaser_usb: Explicitly initialize family in leafimx..." [1].
[1] https://lore.kernel.org/linux-can/20240628194529.312968-1-extja@kvaser.com
Changes in v2:
- Replaced patch 3/15
can: kvaser_usb: Add function kvaser_usb_ticks_to_ktime()
with a new patch
can: kvaser_usb: Add helper functions to convert device timestamp into ktime
and put it first in this series
- Resolved Vincent MAILHOL's review comments regarding duplicated code when converting timestamps [2] [3]
- As pointed out by Vincent MAILHOL [4], the clock overflow commands is not
dispatched in this patch
moved code from 10/15
can: kvaser_usb: leaf: Add structs for Tx ACK and clock overflow commands
to 11/15
can: kvaser_usb: leaf: Store MSB of timestamp
where it's actually used
[2] https://lore.kernel.org/linux-can/CAMZ6RqKSa-6KjvgfmN9eL7A=A65gMkYsRrnaF41Azhsc45FA2Q@mail.gmail.com/
[3] https://lore.kernel.org/linux-can/CAMZ6Rq+Xd7+th=dKV+vrqzRtS+GY-xq2UziH1CURcQ3HxEXMqQ@mail.gmail.com/
[4] https://lore.kernel.org/linux-can/CAMZ6RqKqJX6eqogS2598BFm-AN1uOBbBGL+MkoJtR=-z379Q=w@mail.gmail.com/
Link: https://lore.kernel.org/all/20240701154936.92633-1-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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kvaser_usb_{ethtool,netdev}_ops
Now when we only got one set of ethtool_ops and netdev_ops, remove the
"hwts" suffix from the struct variables
kvaser_usb_{ethtool,netdev}_ops_hwts.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-16-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Remove no longer used struct variables, kvaser_usb_ethtool_ops and
kvaser_usb_netdev_ops.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-15-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Remove KVASER_USB_QUIRK_HAS_HARDWARE_TIMESTAMP, since all devices got
hardware timestamp support.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-14-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add hardware timestamp support for all usbcan based devices (M16C).
The usbcan firmware is slightly different compared to the other Kvaser USB
interfaces:
- The timestamp is provided by a 32-bit counter, with 10us resolution.
Hence, the hardware timestamp will wrap after less than 12 hours.
- Each Rx CAN or Tx ACK command only contains the 16-bits LSB of the
timestamp counter.
- The 16-bits MSB are sent in an asynchronous event (command), if any
change occurred in the MSB since the last event.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-13-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Store MSB of timestamp, provided from the device via the clock overflow
event, for usbcan devices (M16C).
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-12-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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For usbcan devices (M16C), add struct usbcan_cmd_tx_acknowledge for Tx ACK
commands and struct usbcan_cmd_clk_overflow_event for clock overflow event
commands.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-11-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add hardware timestamp support to leaf based devices (M32C and leafimx).
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-10-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Rename local variable skb to err_skb.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-9-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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kvaser_usb_leaf_m32c_dev_cfg_{16,24,32}mhz
Add new struct kvaser_usb_dev_cfg constants,
kvaser_usb_leaf_m32c_dev_cfg_{16,24,32}mhz,
for M32C based leaf devices.
Note that the bittiming parameters are always calculated for 16MHz clock,
while the timestamps are in the actual clock frequency of the device.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-8-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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kvaser_usb_leaf_imx_dev_cfg_{16,24,32}mhz
Assign correct timestamp_freq to kvaser_usb_leaf_imx_dev_cfg_{16,24,32}mhz.
Since the driver didn't utilize the value, this didn't cause any problems.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-7-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add, struct leaf_cmd_tx_acknowledge, for Tx ACK commands received from leaf
devices (M32C and leafimx28).
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-6-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Set hardware timestamp on transmitted packets.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-5-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add, struct kvaser_cmd_tx_ack, for standard Tx ACK commands.
Expand kvaser_usb_hydra_ktime_from_cmd() to extract timestamps from both
standard and extended Tx ACK commands. Unsupported commands are silently
ignored, and 0 is returned.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-4-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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function name
Rename function, since this function will be used for more than just the
rx commands.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-3-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add helper function kvaser_usb_ticks_to_ktime() that converts from
device ticks to ktime.
And kvaser_usb_timestamp{48,64}_to_ktime() that converts from device
48-bit or 64-bit timestamp, to ktime.
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20240701154936.92633-2-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Stefan Mätje <stefan.maetje@esd.eu> says:
The goal of this patch series is to do some cleanup
and also add the support for the one-shot mode before
the next patch introduces CAN-FD support for this
driver.
Link: https://lore.kernel.org/all/20240717214409.3934333-1-stefan.maetje@esd.eu
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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This patch adds support for one-shot mode. In this mode there happens no
automatic retransmission in the case of an arbitration lost error or on
any bus error.
Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
Link: https://lore.kernel.org/all/20240717214409.3934333-3-stefan.maetje@esd.eu
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Rename macros to use for esdACC CTRL register access to match the
internal documentation and to make the macro prefix consistent.
- ACC_CORE_OF_CTRL_MODE -> ACC_CORE_OF_CTRL
Makes the name match the documentation.
- ACC_REG_CONTROL_MASK_MODE_ -> ACC_REG_CTRL_MASK_
ACC_REG_CONTROL_MASK_ -> ACC_REG_CTRL_MASK_
Makes the prefix consistent for macros describing masks in the same
register (CTRL).
Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
Link: https://lore.kernel.org/all/20240717214409.3934333-2-stefan.maetje@esd.eu
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The flexcan in iMX95 is not compatible with imx93 because wakeup
method is difference.
Link: https://lore.kernel.org/all/20240731-flexcan-v4-0-82ece66e5a76@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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iMX95 defines a bit in GPR that sets/unsets the IPG_STOP signal to the
FlexCAN module, controlling its entry into STOP mode. Wakeup should work
even if FlexCAN is in STOP mode.
Due to iMX95 architecture design, the A-Core cannot access GPR; only the
system manager (SM) can configure GPR. To support the wakeup feature,
follow these steps:
- For suspend:
1) During Linux suspend, when CAN suspends, do nothing for GPR and keep
CAN-related clocks on.
2) In ATF, check whether CAN needs to support wakeup; if yes, send a
request to SM through the SCMI protocol.
3) In SM, configure the GPR and unset IPG_STOP.
4) A-Core suspends.
- For wakeup and resume:
1) A-Core wakeup event arrives.
2) In SM, deassert IPG_STOP.
3) Linux resumes.
Add a new fsl_imx95_devtype_data and FLEXCAN_QUIRK_SETUP_STOP_MODE_SCMI to
reflect this.
Reviewed-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/all/20240731-flexcan-v4-2-82ece66e5a76@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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