Re: esp_scsi QTAG in FAS216

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 1 Nov 2016, Michael Schmitz wrote:

> Hi Finn,
> 
> Am 01.11.2016 um 12:47 schrieb Finn Thain:
> > 
> > On Tue, 1 Nov 2016, Michael Schmitz wrote:
> > 
> >>> I had tried to set that bit in zorro_esp_slave_configure but had not 
> >>> done a proper job of it - I'd only set esp->config3 and forgot to 
> >>> set tp->esp_config3. Time to retest this ...
> >>
> >> I don't think it's quite that easy - the ESP_CONFIG3_TENB bit needs 
> >> to be set for all targets if at least one SCSI-2 target is on the bus 
> >> and we allow dosconnecting, no?
> > 
> > I think ESP_CONFIG3_TENB is for FAS100A and FASHME. The bug here is on 
> > ESP236 and FAS236, so ESP_CONFIG3_TBMS would be the relevant bit.
> 
> I stand corrected. Err... confused.
> 
> When setting ESP_CONFIG3_TBMS, should we set ESP_CONFIG3_GTM as well?

I think that depends entirely on the target. But it isn't relevant to the 
bug at hand AFAICS.

-- 

> 
> > The bit gets set when ESP_CONFIG2_SCSI2ENAB gets set (as in David's 
> > patch) so we then need to avoid clobbering it, since ESP_CONFIG3_TBMS 
> > == ESP_CONFIG3_EWIDE. I think we have to test for HME to avoid this 
> > clash.
> 
> I'd want to set these bits for ESP236 and FAS236 only, so no clash with 
> HME. As you found out, ESP_CONFIG3_TBMS aka ESP_CONFIG3_EWIDE gets 
> clobbered on bus reset cleanup unconditionally.
> 
> Cheers,
> 
> 	Michael
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux