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* [PATCH v2 0/1] can: esd: add support for esd GmbH PCIe/402 CAN interface family
@ 2021-07-30 17:38 Stefan Mätje
  2021-07-30 17:38 ` [PATCH v2 1/1] " Stefan Mätje
  0 siblings, 1 reply; 5+ messages in thread
From: Stefan Mätje @ 2021-07-30 17:38 UTC (permalink / raw)
  To: linux-can, Marc Kleine-Budde, Wolfgang Grandegger
  Cc: netdev, Stefan Mätje

The purpose of this patch is to introduce a new CAN driver to support
the esd GmbH 402 family of CAN interface boards. The hardware design
is based on a CAN controller implemented in a FPGA attached to a
PCIe link.

More information on these boards can be found following the links
included in the commit message.

This patch supports all boards but will operate the CAN-FD capable
boards only in Classic-CAN mode. The CAN-FD support will be added
when the initial patch has stabilized.

The patch is based on the linux-can-next testing branch.

The patch is uses the previous work of my former colleague:

*Note*: scripts/ still emits the following warnings:
1.esd402_pci.c:293: Still prints the non-hashed virtual address for
  debug purposes with pci_err(). This is done only on fatal
  initialization failure during modprobe and seems sensible in this
  case to debug the error. This will never occur in normal operation.
2.esdacc.h:269: The irq_cnt pointer is still declared volatile and
  this has a reason and is explained in detail in the header
  referencing the exception noted in volatile-considered-harmful.rst.

Changes in v2:
- Avoid warning triggered by -Wshift-count-overflow on architectures
  with 32-bit dma_addr_t.
- Fixed Makefile not to build the kernel module always. Doing this
  renamed esd402_pci.c to esd_402_pci-core.c as recommended by Marc.

Stefan Mätje (1):
  can: esd: add support for esd GmbH PCIe/402 CAN interface family

 drivers/net/can/Kconfig                |   1 +
 drivers/net/can/Makefile               |   1 +
 drivers/net/can/esd/Kconfig            |  12 +
 drivers/net/can/esd/Makefile           |   7 +
 drivers/net/can/esd/esd_402_pci-core.c | 530 ++++++++++++++++++
 drivers/net/can/esd/esdacc.c           | 717 +++++++++++++++++++++++++
 drivers/net/can/esd/esdacc.h           | 394 ++++++++++++++
 7 files changed, 1662 insertions(+)
 create mode 100644 drivers/net/can/esd/Kconfig
 create mode 100644 drivers/net/can/esd/Makefile
 create mode 100644 drivers/net/can/esd/esd_402_pci-core.c
 create mode 100644 drivers/net/can/esd/esdacc.c
 create mode 100644 drivers/net/can/esd/esdacc.h

base-commit: 8dad5561c13ade87238d9de6dd410b43f7562447

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-08-17  0:14 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-30 17:38 [PATCH v2 0/1] can: esd: add support for esd GmbH PCIe/402 CAN interface family Stefan Mätje
2021-07-30 17:38 ` [PATCH v2 1/1] " Stefan Mätje
2021-08-06 13:31   ` Marc Kleine-Budde
2021-08-16 22:04     ` Stefan Mätje
2021-08-17  0:14       ` Vincent MAILHOL

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