Re: libata and legacy ide pcmcia failure

[Tejun Heo]

Mark Lord wrote:
> Robert de Rooy wrote:
>> (after applying the ide-polling experimental patch)
>>
>> With this I can declare success!! I was able to read and write to the
>> card without any problems, although I did not try to stress it.
>>
>> Jun 12 00:19:42 localhost kernel: pccard: PCMCIA card inserted into
>> slot 0
>> Jun 12 00:19:42 localhost kernel: cs: memory probe
>> 0xe8000000-0xefffffff: excluding 0xe8000000-0xefffffff
>> Jun 12 00:19:42 localhost kernel: cs: memory probe
>> 0xc0200000-0xcfffffff: excluding 0xc0200000-0xc11fffff
>> 0xc1a00000-0xc21fffff 0xc2a00000-0xc31fffff 0xc3a00000-0xcc1fffff
>> 0xcca00000-0xcd1fffff 0xcda00000-0xce1fffff 0xcea00000-0xcf1fffff
>> 0xcfa00000-0xd01fffff
>> Jun 12 00:19:42 localhost kernel: pcmcia: registering new device
>> pcmcia0.0
>> Jun 12 00:19:42 localhost kernel: Uniform Multi-Platform E-IDE driver
>> Revision: 7.00alpha2
>> Jun 12 00:19:42 localhost kernel: ide: Assuming 33MHz system bus speed
>> for PIO modes; override with idebus=xx
>> Jun 12 00:19:45 localhost kernel: hda: Memory Card Adapter, CFA DISK
>> drive
>> Jun 12 00:19:45 localhost kernel: ide0 at 0x4100-0x4107,0x410e on irq 3
>> Jun 12 00:19:45 localhost kernel: ide-cs: hda: Vpp = 0.0
>> Jun 12 00:19:45 localhost udevd-event[20730]: udev_rules_apply_format:
>> unknown format variable '$modalias'
>> Jun 12 00:19:45 localhost kernel: hda: max request size: 128KiB
>> Jun 12 00:19:45 localhost kernel: hda: 253696 sectors (129 MB) w/1KiB
>> Cache, CHS=991/16/16
>> Jun 12 00:19:45 localhost kernel:  hda: hda1
>> Jun 12 00:19:48 localhost hald: mounted /dev/hda1 on behalf of uid 0
> 
> Okay, Tejun / Bart / Alan:
> 
> This proves that the device does work correctly in most respects
> except for interrupt delivery.  The status bits are working and
> it can be probed for, configured, and used.

libata can do most of this too by using ATA_FLAG_PIO_POLLING (doesn't
cover nodata commands tho).

-- 
tejun
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