From: Michael Pellegrini <mikep86@gmail.com>
To: linux-can@vger.kernel.org
Subject: Re: pch_can: Data transmission stops after dropped packet
Date: Tue, 11 Dec 2012 14:46:37 +0000 (UTC) [thread overview]
Message-ID: <loom.20121211T153556-802@post.gmane.org> (raw)
In-Reply-To: 50C1160A.20203@grandegger.com
Wolfgang Grandegger <wg <at> grandegger.com> writes:
> To summarize my understanding of your problem(s). As long as there are
> no I2C transfers, everything works fine, right? The patch below does
> report some write-readback failures but that's due to reserved read-only
> bits. I assume t hat you also use my "RFC v2" patches for c_can.
>
> Trouble starts with concurrent I2C transfers. Then the protected
> write-readback test fails, which I regard as abnormal hardware behavior,
> resulting in message losses and out-of-order reception.
>
> Would be interesting to compare the hardware. Michael, could you also
> show the output of "lspci -vv".
I applied the patch provided. On driver load, dmesg reports the following:
[ 379.817717] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817733] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817856] c_can_pci 0000:02:0c.3: can0: obj no:6, msgval:0x0000003f
[ 379.817875] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817891] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817907] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817923] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817939] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817955] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817971] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.817987] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818003] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818019] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818035] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818051] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818067] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818082] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818098] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818114] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818130] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818146] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818162] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818178] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818194] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818228] c_can_pci 0000:02:0c.3: can0: obj no:7, msgval:0x0000007f
[ 379.818246] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818262] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818278] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818294] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818310] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818326] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818342] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818358] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818374] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818390] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818406] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818422] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818437] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818453] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818469] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818485] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818501] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818517] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818533] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818549] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818565] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818599] c_can_pci 0000:02:0c.3: can0: obj no:8, msgval:0x000000ff
[ 379.818617] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818634] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818650] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818665] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818679] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818694] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818709] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818724] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818739] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818754] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818769] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818784] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818799] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818814] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818828] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818844] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818858] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818873] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818888] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818903] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818918] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818951] c_can_pci 0000:02:0c.3: can0: obj no:9, msgval:0x000001ff
[ 379.818968] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818983] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.818998] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819013] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819028] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819043] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819058] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819073] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819088] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819103] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819118] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819133] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819148] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819163] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819178] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819193] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819208] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819223] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819238] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819253] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819268] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819301] c_can_pci 0000:02:0c.3: can0: obj no:10, msgval:0x000003ff
[ 379.819318] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819333] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819348] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819362] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819377] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819393] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819409] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819426] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819442] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819457] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819473] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819488] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819504] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819519] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819534] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819550] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819565] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819581] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819596] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819612] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819627] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819661] c_can_pci 0000:02:0c.3: can0: obj no:11, msgval:0x000007ff
[ 379.819678] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819694] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819710] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819726] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819742] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819758] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819774] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819790] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819806] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819822] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819838] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819854] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819869] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819885] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819901] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819917] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819933] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819949] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819965] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819981] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.819997] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820075] c_can_pci 0000:02:0c.3: can0: obj no:12, msgval:0x00000fff
[ 379.820093] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820110] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820125] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820142] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820157] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820173] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820189] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820205] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820221] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820237] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820252] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820268] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820284] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820300] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820316] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820332] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820348] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820364] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820380] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820396] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820412] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820446] c_can_pci 0000:02:0c.3: can0: obj no:13, msgval:0x00001fff
[ 379.820464] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820480] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820496] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820512] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820528] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820544] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820560] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820576] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820591] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820607] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820623] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820639] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820655] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820671] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820687] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820703] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820719] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820734] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820750] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820766] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820782] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820817] c_can_pci 0000:02:0c.3: can0: obj no:14, msgval:0x00003fff
[ 379.820835] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820851] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820867] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820883] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820899] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820915] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820930] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820946] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820962] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820978] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.820994] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821010] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821026] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821042] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821058] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821073] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821089] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821105] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821121] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821137] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821153] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821187] c_can_pci 0000:02:0c.3: can0: obj no:15, msgval:0x00007fff
[ 379.821205] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821221] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821237] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821253] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821269] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821285] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821301] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821317] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821332] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821348] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821364] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821380] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821397] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821413] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821428] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821445] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821460] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821475] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821490] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821505] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821520] c_can_pci 0000:02:0c.3: can0: write 0x0 to offset 0x2c failed.
got: 0x2000
[ 379.821553] c_can_pci 0000:02:0c.3: can0: obj no:16, msgval:0x0000ffff
[ 379.821568] c_can_pci 0000:02:0c.3: can0: setting BTR=0518 BRPE=0000
"lspci -vv" reports:
02:0c.2 Serial bus controller [0c80]: Intel Corporation Platform Controller Hub
EG20T I2C Controller
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 7
Region 1: Memory at d0144000 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-
,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
02:0c.3 CANBUS: Intel Corporation Platform Controller Hub EG20T Controller Area
Network (CAN) Controller
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 42
Region 1: Memory at d0143000 (32-bit, non-prefetchable) [size=512]
Capabilities: [40] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4179
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-
,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: c_can_pci
Kernel modules: c_can_pci
Based on a quick test, the CAN interface appears functional with this driver.
However, I am unable to test the I2C interface as I can't get I2C devices to
appear in /dev right now.
I apologize for the delay in getting these results back to you.
- Mike
next prev parent reply other threads:[~2012-12-11 14:46 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-14 15:39 pch_can: Data transmission stops after dropped packet Michael Pellegrini
2012-11-14 21:40 ` Michael Pellegrini
2012-11-15 7:18 ` Oliver Hartkopp
2012-11-15 13:13 ` Wolfgang Grandegger
2012-11-15 16:23 ` Michael Pellegrini
2012-11-15 21:19 ` Wolfgang Grandegger
2012-11-15 21:34 ` Michael Pellegrini
2012-11-15 21:51 ` Wolfgang Grandegger
2012-11-18 22:22 ` Wolfgang Grandegger
2012-11-19 15:10 ` Michael Pellegrini
2012-11-19 15:26 ` Wolfgang Grandegger
2012-11-19 16:20 ` Michael Pellegrini
2012-11-19 16:31 ` Wolfgang Grandegger
2012-11-19 17:39 ` Michael Pellegrini
2012-11-19 19:22 ` Wolfgang Grandegger
2012-11-19 20:19 ` Michael Pellegrini
2012-11-19 21:46 ` Wolfgang Grandegger
2012-11-20 14:25 ` Michael Pellegrini
2012-11-20 16:12 ` Wolfgang Grandegger
2012-11-20 19:12 ` Michael Pellegrini
2012-11-20 21:05 ` Wolfgang Grandegger
2012-11-21 10:24 ` Wolfgang Grandegger
[not found] ` <loom.20121121T160744-278@post.gmane.or g>
2012-11-21 15:15 ` Michael Pellegrini
[not found] ` <loom.20121121T160744-278@post.gmane.or g>
2012-11-21 15:25 ` Michael Pellegrini
2012-11-21 15:32 ` Marc Kleine-Budde
2012-11-21 16:11 ` Michael Pellegrini
2012-11-21 15:41 ` Michael Pellegrini
2012-11-21 15:56 ` Wolfgang Grandegger
2012-11-21 16:09 ` Michael Pellegrini
2012-11-21 16:41 ` Wolfgang Grandegger
2012-11-21 16:58 ` Casper Mogensen
2012-11-21 19:48 ` Wolfgang Grandegger
2012-11-21 17:43 ` Michael Pellegrini
2012-11-21 19:55 ` Wolfgang Grandegger
2012-11-21 21:00 ` Michael Pellegrini
2012-11-23 14:27 ` Michael Pellegrini
2012-11-23 14:45 ` Wolfgang Grandegger
2012-11-23 14:47 ` Wolfgang Grandegger
2012-11-23 15:14 ` Michael Pellegrini
2012-11-23 15:04 ` Michael Pellegrini
2012-11-23 17:00 ` Wolfgang Grandegger
2012-11-23 17:18 ` Wolfgang Grandegger
2012-11-23 17:52 ` Michael Pellegrini
2012-11-25 16:17 ` Wolfgang Grandegger
2012-11-26 14:54 ` Michael Pellegrini
2012-11-26 15:30 ` Wolfgang Grandegger
2012-11-26 17:30 ` Michael Pellegrini
2012-11-26 18:13 ` Wolfgang Grandegger
2012-11-29 12:15 ` Wolfgang Grandegger
2012-11-29 14:15 ` Michael Pellegrini
2012-12-06 14:20 ` Michael Pellegrini
2012-12-06 14:23 ` Marc Kleine-Budde
2012-12-06 14:41 ` Wolfgang Grandegger
2012-12-06 14:42 ` Marc Kleine-Budde
2012-12-06 14:42 ` Michael Pellegrini
2012-12-06 14:49 ` Wolfgang Grandegger
2012-12-06 17:05 ` Alexander Stein
2012-12-06 22:02 ` Wolfgang Grandegger
2012-12-06 23:24 ` Marc Kleine-Budde
2012-12-10 8:21 ` Alexander Stein
2012-12-11 20:24 ` Wolfgang Grandegger
2012-12-13 14:04 ` Alexander Stein
2012-12-11 14:46 ` Michael Pellegrini [this message]
2012-12-11 20:21 ` Wolfgang Grandegger
2012-12-12 13:35 ` Alexander Stein
2012-12-06 22:11 ` Michael Pellegrini
2012-12-06 23:23 ` Michael Pellegrini
2012-11-24 7:16 ` Wolfgang Grandegger
2012-11-26 3:33 ` Bhupesh SHARMA
2012-11-21 14:52 ` Michael Pellegrini
2012-11-21 15:02 ` Wolfgang Grandegger
2012-11-15 16:32 ` Casper Mogensen
2012-11-15 21:16 ` Wolfgang Grandegger
2012-11-16 19:39 ` Wolfgang Grandegger
2012-11-15 16:12 ` Michael Pellegrini
2012-11-20 18:59 ` Wolfgang Grandegger
2012-11-15 12:35 ` Steffen Rose
2012-11-15 18:26 ` Michael Pellegrini
2012-11-16 8:24 ` Steffen Rose
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