Stephane Grosjean 5d4c94ed9f can: peak_canfd: fix firmware < v3.3.0: limit allocation to 32-bit DMA addr only ... The DMA logic in firmwares < v3.3.0 embedded in the PCAN-PCIe FD cards family is not capable of handling a mix of 32-bit and 64-bit logical addresses. If the board is equipped with 2 or 4 CAN ports, then such a situation might lead to a PCIe Bus Error "Malformed TLP" packet as well as "irq xx: nobody cared" issue. This patch adds a workaround that requests only 32-bit DMA addresses when these might be allocated outside of the 4 GB area. This issue has been fixed in firmware v3.3.0 and next. Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2018-07-23 14:34:45 +02:00
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Kconfig
Makefile
peak_canfd_user.h
peak_canfd.c	can: peak/pcie_fd: remove useless code when interface starts	2018-03-12 09:55:12 +01:00
peak_pciefd_main.c	can: peak_canfd: fix firmware < v3.3.0: limit allocation to 32-bit DMA addr only	2018-07-23 14:34:45 +02:00