Hello Wolfgang,
I have tested the latest SVN version (r1060) and the order of frame
problem is gone (tested also with IXXAT proprietary test environment).
However, if setting the CAN_MSG_COUNT to bigger that 12 in the
canecho_gen.c , the messages are lost on the MSCAN DUT.
Attached is the trace with CAN_MSG_COUNT equal to 20. Message #55
is wrong here, two CAN messages with ID 77 are lost on reception.
Regards,
Vladislav
-----Original Message-----
From: Wolfgang Grandegger [mailto:[email protected]]
Sent: Wednesday, September 16, 2009 10:45 AM
To: [email protected]
Cc: Gribov, Vladislav
Subject: Re: [PATCH] mscan: fix TX message handling to ensure proper
message ordering
Wolfgang Grandegger wrote:
> can: mscan: fix TX message handling to ensure proper message ordering
>
> An out-of-order TX message problem has been reported and demonstrated
> by Vladislav. The TX message buffers were not handled properly if
> just one message was pending. This patch remembers the id of the
buffer
> used previously and increase the buffer priority if the next one has a
> lower id number. This allows up to approx. 3*256 messages to be sent
> until the lowest buffer priority of 255 is reached. There is still
> room for improvements using a more tricky method.
>
> Signed-off-by: Wolfgang Grandegger <[email protected]>
Applied to SVN trunk. Vladislav, it would be nice if you could validate
the fix on your setup when time permits. It worked fine on mine.
Wolfgang.
"Bus";"No";"Time (abs)";"State";"ID (hex)";"Length";"Message";"Data
(hex)";"ASCII"
"CAN";"1";"00:18:38.307.592.0";" ";"77";"8";"";"00 01 02 03 04 05 06
07";"........"
"CAN";"2";"00:18:38.308.683.7";" ";"78";"8";"";"01 02 03 04 05 06 07
08";"........"
"CAN";"3";"00:18:38.310.554.5";" ";"77";"8";"";"01 02 03 04 05 06 07
08";"........"
"CAN";"4";"00:18:38.311.607.1";" ";"78";"8";"";"02 03 04 05 06 07 08
09";"........"
"CAN";"5";"00:18:38.312.558.4";" ";"77";"8";"";"02 03 04 05 06 07 08
09";"........"
"CAN";"6";"00:18:38.313.501.8";" ";"77";"8";"";"03 04 05 06 07 08 09
0A";"........"
"CAN";"7";"00:18:38.314.452.2";" ";"77";"8";"";"04 05 06 07 08 09 0A
0B";"........"
"CAN";"8";"00:18:38.315.385.8";" ";"77";"8";"";"05 06 07 08 09 0A 0B
0C";"........"
"CAN";"9";"00:18:38.316.328.3";" ";"77";"8";"";"06 07 08 09 0A 0B 0C
0D";"........"
"CAN";"10";"00:18:38.317.254.8";" ";"77";"8";"";"07 08 09 0A 0B 0C 0D
0E";"........"
"CAN";"11";"00:18:38.318.197.2";" ";"77";"8";"";"08 09 0A 0B 0C 0D 0E
0F";"........"
"CAN";"12";"00:18:38.319.139.7";" ";"77";"8";"";"09 0A 0B 0C 0D 0E 0F
10";"........"
"CAN";"13";"00:18:38.320.082.2";" ";"77";"8";"";"0A 0B 0C 0D 0E 0F 10
11";"........"
"CAN";"14";"00:18:38.321.039.7";" ";"78";"8";"";"03 04 05 06 07 08 09
0A";"........"
"CAN";"15";"00:18:38.321.974.2";" ";"77";"8";"";"0B 0C 0D 0E 0F 10 11
12";"........"
"CAN";"16";"00:18:38.322.916.7";" ";"77";"8";"";"0C 0D 0E 0F 10 11 12
13";"........"
"CAN";"17";"00:18:38.323.843.1";" ";"77";"8";"";"0D 0E 0F 10 11 12 13
14";"........"
"CAN";"18";"00:18:38.324.792.7";" ";"77";"8";"";"0E 0F 10 11 12 13 14
15";"........"
"CAN";"19";"00:18:38.325.719.2";" ";"77";"8";"";"0F 10 11 12 13 14 15
16";"........"
"CAN";"20";"00:18:38.326.645.7";" ";"77";"8";"";"10 11 12 13 14 15 16
17";"........"
"CAN";"21";"00:18:38.327.556.2";" ";"77";"8";"";"11 12 13 14 15 16 17
18";"........"
"CAN";"22";"00:18:38.328.521.7";" ";"78";"8";"";"04 05 06 07 08 09 0A
0B";"........"
"CAN";"23";"00:18:38.329.448.2";" ";"77";"8";"";"12 13 14 15 16 17 18
19";"........"
"CAN";"24";"00:18:38.330.366.7";" ";"77";"8";"";"13 14 15 16 17 18 19
1A";"........"
"CAN";"25";"00:18:38.331.285.2";" ";"77";"8";"";"14 15 16 17 18 19 1A
1B";"........"
"CAN";"26";"00:18:38.332.211.6";" ";"77";"8";"";"15 16 17 18 19 1A 1B
1C";"........"
"CAN";"27";"00:18:38.333.138.1";" ";"77";"8";"";"16 17 18 19 1A 1B 1C
1D";"........"
"CAN";"28";"00:18:38.334.071.7";" ";"77";"8";"";"17 18 19 1A 1B 1C 1D
1E";"........"
"CAN";"29";"00:18:38.335.029.3";" ";"78";"8";"";"05 06 07 08 09 0A 0B
0C";"........"
"CAN";"30";"00:18:38.335.954.9";" ";"77";"8";"";"18 19 1A 1B 1C 1D 1E
1F";"........"
"CAN";"31";"00:18:38.336.911.5";" ";"78";"8";"";"06 07 08 09 0A 0B 0C
0D";"........"
"CAN";"32";"00:18:38.337.846.0";" ";"77";"8";"";"19 1A 1B 1C 1D 1E 1F
20";"....... "
"CAN";"33";"00:18:38.338.803.6";" ";"78";"8";"";"07 08 09 0A 0B 0C 0D
0E";"........"
"CAN";"34";"00:18:38.339.738.0";" ";"77";"8";"";"1A 1B 1C 1D 1E 1F 20
21";"...... !"
"CAN";"35";"00:18:38.340.694.7";" ";"78";"8";"";"08 09 0A 0B 0C 0D 0E
0F";"........"
"CAN";"36";"00:18:38.341.629.2";" ";"77";"8";"";"1B 1C 1D 1E 1F 20 21
22";"..... !"""
"CAN";"37";"00:18:38.342.586.8";" ";"78";"8";"";"09 0A 0B 0C 0D 0E 0F
10";"........"
"CAN";"38";"00:18:38.343.513.2";" ";"77";"8";"";"1C 1D 1E 1F 20 21 22
23";".... !""#"
"CAN";"39";"00:18:38.344.469.9";" ";"78";"8";"";"0A 0B 0C 0D 0E 0F 10
11";"........"
"CAN";"40";"00:18:38.345.387.5";" ";"77";"8";"";"1D 1E 1F 20 21 22 23
24";"... !""#$"
"CAN";"41";"00:18:38.346.336.2";" ";"78";"8";"";"0B 0C 0D 0E 0F 10 11
12";"........"
"CAN";"42";"00:18:38.347.262.7";" ";"77";"8";"";"1E 1F 20 21 22 23 24
25";".. !""#$%"
"CAN";"43";"00:18:38.348.211.4";" ";"78";"8";"";"0C 0D 0E 0F 10 11 12
13";"........"
"CAN";"44";"00:18:38.349.129.0";" ";"77";"8";"";"1F 20 21 22 23 24 25
26";". !""#$%&"
"CAN";"45";"00:18:38.350.077.6";" ";"78";"8";"";"0D 0E 0F 10 11 12 13
14";"........"
"CAN";"46";"00:18:38.350.996.1";" ";"77";"8";"";"20 21 22 23 24 25 26 27";"
!""#$%&'"
"CAN";"47";"00:18:38.351.945.7";" ";"78";"8";"";"0E 0F 10 11 12 13 14
15";"........"
"CAN";"48";"00:18:38.352.878.4";" ";"78";"8";"";"0F 10 11 12 13 14 15
16";"........"
"CAN";"49";"00:18:38.353.818.2";" ";"78";"8";"";"10 11 12 13 14 15 16
17";"........"
"CAN";"50";"00:18:38.354.720.7";" ";"77";"8";"";"21 22 23 24 25 26 27
28";"!""#$%&'("
"CAN";"51";"00:18:38.355.631.2";" ";"77";"8";"";"22 23 24 25 26 27 28
29";"""#$%&'()"
"CAN";"52";"00:18:38.356.541.7";" ";"77";"8";"";"23 24 25 26 27 28 29
2A";"#$%&'()*"
"CAN";"53";"00:18:38.357.466.4";" ";"78";"8";"";"11 12 13 14 15 16 17
18";"........"
"CAN";"54";"00:18:38.358.376.9";" ";"77";"8";"";"24 25 26 27 28 29 2A
2B";"$%&'()*+"
"CAN";"55";"00:18:38.359.318.4";" ";"78";"8";"";"14 15 16 17 18 19 1A
1B";"........"
"CAN";"56";"00:18:38.360.267.1";" ";"78";"8";"";"1A 1B 1C 1D 1E 1F 20
21";"...... !"
"CAN";"57";"00:18:38.361.207.8";" ";"78";"8";"";"1B 1C 1D 1E 1F 20 21
22";"..... !"""
"CAN";"58";"00:18:38.362.148.5";" ";"78";"8";"";"1C 1D 1E 1F 20 21 22
23";".... !""#"
"CAN";"59";"00:18:38.363.082.1";" ";"78";"8";"";"1D 1E 1F 20 21 22 23
24";"... !""#$"
"CAN";"60";"00:18:38.364.013.9";" ";"78";"8";"";"1E 1F 20 21 22 23 24
25";".. !""#$%"
"CAN";"61";"00:18:38.364.962.6";" ";"78";"8";"";"1F 20 21 22 23 24 25
26";". !""#$%&"
"CAN";"62";"00:18:38.365.894.4";" ";"78";"8";"";"20 21 22 23 24 25 26 27";"
!""#$%&'"
"CAN";"63";"00:18:38.366.812.0";" ";"78";"8";"";"21 22 23 24 25 26 27
28";"!""#$%&'("
"CAN";"64";"00:18:38.367.736.7";" ";"78";"8";"";"22 23 24 25 26 27 28
29";"""#$%&'()"
"CAN";"65";"00:18:38.368.669.4";" ";"78";"8";"";"23 24 25 26 27 28 29
2A";"#$%&'()*"
"CAN";"66";"00:18:38.369.595.0";" ";"78";"8";"";"24 25 26 27 28 29 2A
2B";"$%&'()*+"
"CAN";"67";"00:18:38.370.520.5";" ";"78";"8";"";"25 26 27 28 29 2A 2B
2C";"%&'()*+,"
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