| Message ID | cover.1599168753.git.pisa@cmp.felk.cvut.cz (mailing list archive) |
|---|---|
| Headers | show |
| Series | CTU CAN FD core support | expand |
Hello everybody, On Thursday 03 of September 2020 23:37:17 pisa@cmp.felk.cvut.cz wrote: > From: Pavel Pisa <pisa@cmp.felk.cvut.cz> > > CTU CAN FD is an open source soft core written in VHDL. > It originated in 2015 as Ondrej Ille's project at the > Department of Measurement of FEE at CTU. It seems that there has been problem with QEMU CI run by patchew No space left on device It seems it is resolved for later patches Please, can somebody restart pipe for our CAN FD series https://patchew.org/QEMU/cover.1599168753.git.pisa@cmp.felk.cvut.cz/ Please, is there somebody willing to look and apply series to mainline if it passes CI OK? Changes are only in CAN subsystem so if there is no problem with breaking build on some system then patches can break only the subsystem which I have planned, found funding for initial CAN implementation provided by RTEMS GSoC slot and where I have tutor our university studnet to work on CAN FD support. If something is wrong then it break only this subsystem, all functionality is activated only when explicitly selected by command line option. It seems that subsystem has users at Xilinx, Pengutronix and more. I have some longer time plans how to implement back-pressure from SocketCAN, prioritization of the bus transfers when multiple controllers are active at one and even emulate bus tansmittion delay and blocking when message is on its way. But these are more intrusive changes and would require time or some other student work and I do not invest my time before I would know that there is no more request for series on which future work is based on. Thanks much in advance, Pavel
On 04/09/20 19:31, Pavel Pisa wrote: > Hello everybody, > > On Thursday 03 of September 2020 23:37:17 pisa@cmp.felk.cvut.cz wrote: >> From: Pavel Pisa <pisa@cmp.felk.cvut.cz> >> >> CTU CAN FD is an open source soft core written in VHDL. >> It originated in 2015 as Ondrej Ille's project at the >> Department of Measurement of FEE at CTU. > It seems that there has been problem with QEMU CI > run by patchew > > No space left on device > > It seems it is resolved for later patches Yes there seems to be a bug where timeouts fail to stop the container---eventually they pile up and occupy all disk space. I should really just add a cron job until I figure it out. Paolo
From: Pavel Pisa <pisa@cmp.felk.cvut.cz> CTU CAN FD is an open source soft core written in VHDL. It originated in 2015 as Ondrej Ille's project at the Department of Measurement of FEE at CTU. Integration for Xilinx Zynq and Intel based SoCs is available as well as support for PCIe integration of the core. The core sources https://gitlab.fel.cvut.cz/canbus/ctucanfd_ip_core The controller model and QEMU CAN subsystem extension to CAN FD has been implemented in frame of bachelor theses of Jan Charvat. The development branch ctu-canfd in CTU local project repository https://gitlab.fel.cvut.cz/canbus/qemu-canbus More CAN bus related project from Czech Technical University in Prague, Faculty of Electrical Engineering at http://canbus.pages.fel.cvut.cz/ Patches v2 updates: - CTU CAN FD IP core emulation tested on x86 host with big-endian MIPS MALTA target as well. This helped t correct Linux driver to support big-endian systems. - CTU CAN FD IP core emulation updated to pass CAN frame data correctly on big-endian host systems. Big-endian host not tested, would required whole QEMU build for MIPS MALTA or big-endian POWER and run it nested emulation, because I have no access to Linux based big-endian system capable for QEMU build. - Makefile.objs changes applied to meson.build and Kconfig. - The common CAN support update for CAN FD tested and reviewed by Vikram Garhwal from Xilinx. They base their CAN FD controllers emulation on our work. - Vikram Garhwal agrees to help with common QEMU CAN bus infrastructure reviews. I add him and myself into maintainers. - Corrected SJA1000 dependencies in Kconfig after (probably) automated switch to meson build from make build. Please, let me know if somebody from recipients list does no longer have interrest in QEMU CAN bus emulation and I would remove you from recipients list to not load you by uniteresting content in future. Jan Charvat (5): net/can: Initial host SocketCan support for CAN FD. hw/net/can: sja1000 ignore CAN FD frames net/can: Add can_dlc2len and can_len2dlc for CAN FD. hw/net/can/ctucafd: Add CTU CAN FD core register definitions. hw/net/can: CTU CAN FD IP open hardware core emulation. Pavel Pisa (2): hw/net/can: Documentation for CTU CAN FD IP open hardware core emulation. hw/net/can: Correct Kconfig dependencies after switch to meson build. MAINTAINERS | 9 + docs/can.txt | 113 +++- hw/net/Kconfig | 16 +- hw/net/can/can_sja1000.c | 31 +- hw/net/can/ctu_can_fd_frame.h | 189 +++++++ hw/net/can/ctu_can_fd_regs.h | 971 ++++++++++++++++++++++++++++++++++ hw/net/can/ctucan_core.c | 696 ++++++++++++++++++++++++ hw/net/can/ctucan_core.h | 127 +++++ hw/net/can/ctucan_pci.c | 280 ++++++++++ hw/net/can/meson.build | 2 + include/net/can_emu.h | 12 +- net/can/can_core.c | 36 ++ net/can/can_socketcan.c | 47 +- 13 files changed, 2505 insertions(+), 24 deletions(-) create mode 100644 hw/net/can/ctu_can_fd_frame.h create mode 100644 hw/net/can/ctu_can_fd_regs.h create mode 100644 hw/net/can/ctucan_core.c create mode 100644 hw/net/can/ctucan_core.h create mode 100644 hw/net/can/ctucan_pci.c