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From: Markus Schneider-Pargmann <msp@baylibre.com>
To: Chandrasekar Ramakrishnan <rcsekar@samsung.com>,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Markus Schneider-Pargmann <msp@baylibre.com>
Subject: [PATCH 00/15] can: m_can: Optimizations for tcan and peripheral chips
Date: Wed, 16 Nov 2022 21:52:53 +0100	[thread overview]
Message-ID: <20221116205308.2996556-1-msp@baylibre.com> (raw)

Hi,

this series is aimed at optimizing the driver code for tcan chips and
more generally for peripheral m_can chips.

I did different things to improve the performance:
- Reduce the number of SPI transfers.
- Reduce the number of interrupts.
- Enable use of FIFOs.

I am working with a tcan4550 in loopback mode attached to a beaglebone
black. I am currently working on optimizing the receive path as well
which will be submitted in another series once it is done.

Best,
Markus

Markus Schneider-Pargmann (15):
  can: m_can: Eliminate double read of TXFQS in tx_handler
  can: m_can: Wakeup net queue once tx was issued
  can: m_can: Cache tx putidx and transmits in flight
  can: m_can: Use transmit event FIFO watermark level interrupt
  can: m_can: Disable unused interrupts
  can: m_can: Avoid reading irqstatus twice
  can: m_can: Read register PSR only on error
  can: m_can: Count TXE FIFO getidx in the driver
  can: m_can: Count read getindex in the driver
  can: m_can: Batch acknowledge rx fifo
  can: m_can: Batch acknowledge transmit events
  can: tcan4x5x: Remove invalid write in clear_interrupts
  can: tcan4x5x: Fix use of register error status mask
  can: tcan4x5x: Fix register range of first block
  can: tcan4x5x: Specify separate read/write ranges

 drivers/net/can/m_can/m_can.c           | 140 +++++++++++++++---------
 drivers/net/can/m_can/m_can.h           |   5 +
 drivers/net/can/m_can/tcan4x5x-core.c   |  19 ++--
 drivers/net/can/m_can/tcan4x5x-regmap.c |  45 ++++++--
 4 files changed, 141 insertions(+), 68 deletions(-)


base-commit: 094226ad94f471a9f19e8f8e7140a09c2625abaa
prerequisite-patch-id: e9df6751d43bb0d1e3b8938d7e93bc1cfa22cef2
prerequisite-patch-id: dad9ec37af766bcafe54cb156f896267a0f47fe1
prerequisite-patch-id: f4e6f1a213a31df2741a5fa3baa87aa45ef6707a
-- 
2.38.1


             reply	other threads:[~2022-11-16 20:54 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-16 20:52 Markus Schneider-Pargmann [this message]
2022-11-16 20:52 ` [PATCH 01/15] can: m_can: Eliminate double read of TXFQS in tx_handler Markus Schneider-Pargmann
2022-11-16 20:52 ` [PATCH 02/15] can: m_can: Wakeup net queue once tx was issued Markus Schneider-Pargmann
2022-11-30 17:21   ` Marc Kleine-Budde
2022-12-01  8:43     ` Markus Schneider-Pargmann
2022-12-01  9:16       ` Marc Kleine-Budde
2022-12-01 16:49         ` Markus Schneider-Pargmann
2022-12-02  9:16           ` Marc Kleine-Budde
2022-12-14  9:14     ` Markus Schneider-Pargmann
2022-12-14  9:18       ` Marc Kleine-Budde
2022-12-14  9:22         ` Marc Kleine-Budde
2022-12-14 10:15           ` Vincent MAILHOL
2022-12-14 10:35             ` Markus Schneider-Pargmann
2022-12-15  9:31               ` Markus Schneider-Pargmann
2022-12-16  4:40                 ` Vincent MAILHOL
2022-12-14 10:18           ` Markus Schneider-Pargmann
2022-12-02 13:53   ` Marc Kleine-Budde
2022-11-16 20:52 ` [PATCH 03/15] can: m_can: Cache tx putidx and transmits in flight Markus Schneider-Pargmann
2022-12-01 11:14   ` Marc Kleine-Budde
2022-12-02  8:37     ` Markus Schneider-Pargmann
2022-12-02 14:46       ` Marc Kleine-Budde
2022-12-13 17:13         ` Markus Schneider-Pargmann
2022-12-13 19:17           ` Marc Kleine-Budde
2022-12-14  8:32             ` Markus Schneider-Pargmann
2022-11-16 20:52 ` [PATCH 04/15] can: m_can: Use transmit event FIFO watermark level interrupt Markus Schneider-Pargmann
2022-11-30 17:17   ` Marc Kleine-Budde
2022-12-01  8:25     ` Markus Schneider-Pargmann
2022-12-01  9:05       ` Marc Kleine-Budde
2022-12-01 10:12         ` Markus Schneider-Pargmann
2022-12-01 11:00           ` Marc Kleine-Budde
2022-12-01 16:59             ` Markus Schneider-Pargmann
2022-12-02  9:23               ` Marc Kleine-Budde
2022-12-02  9:43                 ` Markus Schneider-Pargmann
2022-12-02 14:03                   ` Marc Kleine-Budde
2022-12-13 17:19               ` Markus Schneider-Pargmann
2022-12-13 19:18                 ` Marc Kleine-Budde
2022-11-16 20:52 ` [PATCH 05/15] can: m_can: Disable unused interrupts Markus Schneider-Pargmann
2022-11-16 20:52 ` [PATCH 06/15] can: m_can: Avoid reading irqstatus twice Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 07/15] can: m_can: Read register PSR only on error Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 08/15] can: m_can: Count TXE FIFO getidx in the driver Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 09/15] can: m_can: Count read getindex " Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 10/15] can: m_can: Batch acknowledge rx fifo Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 11/15] can: m_can: Batch acknowledge transmit events Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 12/15] can: tcan4x5x: Remove invalid write in clear_interrupts Markus Schneider-Pargmann
2022-12-02 14:17   ` Marc Kleine-Budde
2022-11-16 20:53 ` [PATCH 13/15] can: tcan4x5x: Fix use of register error status mask Markus Schneider-Pargmann
2022-12-02 14:19   ` Marc Kleine-Budde
2022-11-16 20:53 ` [PATCH 14/15] can: tcan4x5x: Fix register range of first block Markus Schneider-Pargmann
2022-12-02 14:28   ` Marc Kleine-Budde
2022-12-05  9:30     ` Markus Schneider-Pargmann
2022-12-05  9:44       ` Marc Kleine-Budde
2022-12-05  9:55         ` Markus Schneider-Pargmann
2022-11-16 20:53 ` [PATCH 15/15] can: tcan4x5x: Specify separate read/write ranges Markus Schneider-Pargmann
2022-12-02 14:03 ` [PATCH 00/15] can: m_can: Optimizations for tcan and peripheral chips Marc Kleine-Budde
2022-12-05  9:09   ` Markus Schneider-Pargmann

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