Trouble

Kernel 3.19.0 & brmfmac problems with high amount of datatransfer

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Edited by Mr_Blonde at Fri Feb 13, 2015 07:31

It's me again.

My 3.19.0 kernel is running with the brcmfmac module and the wlan0 interface shows up and is usable (for more details see this thread).

Everything works fine until I transfer a couple of MBs subsequently (e.g., scp a file > 50MB).

The error message I get is:
  1. sunxi-mmc 1c1200.mmc:smc 1 err, cmd 53, RD DTO !!
  2. sunxi-mmc 1c12000.mmc: data error, sending stop command
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This constantly repeats and every third repetition, the following message gets thrown in:
  1. brcmf_sdiod_regrw_helper: failed to read data F1@0x0a020, err: -110
  2. brcmf-sdio_isr: failed backplane access
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It seems like there is a problem with the WiFi card driver and/or the SDIO interface.

Is this a known problem? Or better: Is there a fix to this out there?
Anyone having the same problem?

hnsncxy  
I have the same problem when i use the brcmfmac to driver the ap6181 WiFi module, and looking for solution.
Did you solve the problem ?

Unfortunately not. :-(

hnsncxy  
Edited by hnsncxy at Fri Mar 6, 2015 07:45

Hi,
I have gotten some information from the sunxi community. The brcmfmac problem from the upstream kernels, and the sunxi community will try to fix bug.

Exact same problem here:
[  101.601138] sunxi-mmc 1c12000.mmc: smc 1 err, cmd 53, RD DTO !!
[  101.607114] sunxi-mmc 1c12000.mmc: data error, sending stop command
[  101.951128] sunxi-mmc 1c12000.mmc: smc 1 err, cmd 53, RD DTO !!
[  101.957118] sunxi-mmc 1c12000.mmc: data error, sending stop command
[  102.301088] sunxi-mmc 1c12000.mmc: smc 1 err, cmd 53, RD DTO !!
[  102.307081] sunxi-mmc 1c12000.mmc: data error, sending stop command
[  102.313431] brcmfmac: brcmf_sdiod_regrw_helper: failed to read data F1@0x0a020, err: -110
[  102.321711] brcmfmac: brcmf_sdio_isr: failed backplane access

uname -a
3.16.0-4-armmp-lpae #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13) armv7l GNU/Linux

The data transfer was actually on eth0. wlan0 was not actively used at the time.

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