Markus Schneider-Pargmann <msp@baylibre.com> says:
The series implements many small and bigger throughput improvements and
adds rx/tx coalescing at the end.
Changes in v7:
- Rebased to v6.8-rc1
- Fixed NULL pointer dereference in m_can_clean() on am62 that happened
when doing ip link up, ip link down, ip link up
- Fixed a racecondition on am62 observed with high throughput tests.
netdev_completed_queue() was called before netdev_sent_queue() as the
interrupt was processed so fast. netdev_sent_queue() is now reported
before the actual sent is done.
- Fixed an initializing issue on am62 where active interrupts are
getting lost between runs. Fixed by resetting cdev->active_interrupts
in m_can_disable_all_interrupts()
- Removed m_can_start_fast_xmit() because of a reordering of operations
due to above mentioned race condition
Changes in v6:
- Rebased to v6.6-rc2
- Added two small changes for the newly integrated polling feature
- Reuse the polling hrtimer for coalescing as the timer used for
coalescing has a similar purpose as the one for polling. Also polling
and coalescing will never be active at the same time.
Changes in v5:
- Add back parenthesis in m_can_set_coalesce(). This will make
checkpatch unhappy but gcc happy.
- Remove unused fifo_header variable in m_can_tx_handler().
- Rebased to v6.5-rc1
Changes in v4:
- Create and use struct m_can_fifo_element in m_can_tx_handler
- Fix memcpy_and_pad to copy the full buffer
- Fixed a few checkpatch warnings
- Change putidx to be unsigned
- Print hard_xmit error only once when TX FIFO is full
Changes in v3:
- Remove parenthesis in error messages
- Use memcpy_and_pad for buffer copy in 'can: m_can: Write transmit
header and data in one transaction'.
- Replace spin_lock with spin_lock_irqsave. I got a report of a
interrupt that was calling start_xmit just after the netqueue was
woken up before the locked region was exited. spin_lock_irqsave should
fix this. I attached the full stack at the end of the mail if someone
wants to know.
- Rebased to v6.3-rc1.
- Removed tcan4x5x patches from this series.
Changes in v2:
- Rebased on v6.2-rc5
- Fixed missing/broken accounting for non peripheral m_can devices.
previous versions:
v1 - https://lore.kernel.org/lkml/
20221221152537.751564-1-msp@baylibre.com
v2 - https://lore.kernel.org/lkml/
20230125195059.630377-1-msp@baylibre.com
v3 - https://lore.kernel.org/lkml/
20230315110546.
2518305-1-msp@baylibre.com
v4 - https://lore.kernel.org/lkml/
20230621092350.
3130866-1-msp@baylibre.com
v5 - https://lore.kernel.org/lkml/
20230718075708.958094-1-msp@baylibre.com
v6 - https://lore.kernel.org/lkml/
20230929141304.
3934380-1-msp@baylibre.com
Link: https://lore.kernel.org/all/20240207093220.2681425-1-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>