Hello Wolfgang,
Hi Wolfgang,
On 12/04/2011 07:47 PM, Wolfgang Zarre wrote:
Hello Wolfgang,
...
Wolfgang, I just sent out v4. Any chance to give this patch a try? It
would be best to use a recent kernel version but I could also adapt the
patch to your kernel version, 2.6.39, I think!?
Sorry for my delayed reply, but wasn't earlier possible.
Yes, of course, as long as I have the hardware available I can do some
tests, even
on a recent kernel due the fact having the project so far completed,
just another
test run on the 9th of December.
Due the flood of emails I lost now track which version You would be
interested in
and maybe also which kernel version, so, please let me know and maybe
were I may
download the patches.
Well, yes, I was spinning too fast but the patches have been accepted in
the meantime (actually v6 made it). So you just need to clone the most
recent version of Dave's net-next tree.
As you are using a CC770 chip, I'm especially interested in the relevant
kernel log (dmesg) and "ip -d -s link show".
Should be not a problem at all.
Great, thanks.
Ok, here we go:
uname -r: 3.2.0-rc4
modprobe cc770_isa irq=0xa port=0x384 indirect=1 cir=0x61 bcr=0x4A
ip link set can0 up type can bitrate 500000;
kern.log
Dec 6 20:42:19 svserv01 kernel: [ 2111.900735] CAN device driver interface
Dec 6 20:42:19 svserv01 kernel: [ 2111.903072] cc770: CAN netdevice driver
Dec 6 20:42:19 svserv01 kernel: [ 2111.904692] cc770_isa: platform device 0:
port=0x384, mem=0x0, irq=10
Dec 6 20:42:19 svserv01 kernel: [ 2111.904726] cc770_isa cc770_isa.0: probing
idx=0: port=0x384, mem=0x0, irq=10
Dec 6 20:42:19 svserv01 kernel: [ 2111.904779] cc770_isa cc770_isa.0:
(unregistered net_device): i82527 mode with additional functions
Dec 6 20:42:19 svserv01 kernel: [ 2111.906407] cc770_isa cc770_isa.0: device
registered (reg_base=0x00000384, irq=10)
Dec 6 20:42:19 svserv01 kernel: [ 2111.906457] cc770_isa: driver for max. 8
devices registered
6 20:44:17 svserv01 kernel: [ 2229.886845] cc770_isa cc770_isa.0: can0:
setting BTR0=0x00 BTR1=0x1c
Dec 6 20:44:17 svserv01 kernel: [ 2229.886920] cc770_isa cc770_isa.0: can0:
Message object 15 for RX data, RTR, SFF and EFF
Dec 6 20:44:17 svserv01 kernel: [ 2229.886937] cc770_isa cc770_isa.0: can0:
Message object 11 for TX data, RTR, SFF and EFF
Dec 6 20:52:40 svserv01 kernel: [ 2733.172845] can: controller area network
core (rev 20090105 abi 8)
Dec 6 20:52:40 svserv01 kernel: [ 2733.172967] NET: Registered protocol family
29
Dec 6 20:52:40 svserv01 kernel: [ 2733.178187] can: raw protocol (rev 20090105)
ip -d -s link show
4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10
link/can
can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0
bitrate 500000 sample-point 0.875
tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1
cc770: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1
clock 8000000
re-started bus-errors arbit-lost error-warn error-pass bus-off
0 0 0 0 0 0
RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
After rebooting the PLC with proprietary buggy kernel:
4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10
link/can
can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0
bitrate 500000 sample-point 0.875
tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1
cc770: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1
clock 8000000
re-started bus-errors arbit-lost error-warn error-pass bus-off
0 0 0 0 0 0
RX: bytes packets errors dropped overrun mcast
414 267 0 267 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
After sending 100,000 PDO's with 13ms displacement:
4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10
link/can
can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0
bitrate 500000 sample-point 0.875
tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1
cc770: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1
clock 8000000
re-started bus-errors arbit-lost error-warn error-pass bus-off
0 0 0 0 0 0
RX: bytes packets errors dropped overrun mcast
4544 4284 0 331 0 0
TX: bytes packets errors dropped carrier collsns
802660 202653 0 0 0 0
The dropped ones of RX may be the not processed input packages and therefore ok.
Let me know if You need more or some other tests.
Wolfgang.
_______________________________________________
Socketcan-users mailing list
[email protected]
https://lists.berlios.de/mailman/listinfo/socketcan-users
