Ultra with 20MB/s od AIC7890 ???? (fwd)

[Charlie Wilkinson - XM]

On Wed, Nov 25, 1998 at 06:53:20AM -0500, Albert Max Lai typeth in:

> I think this might be related... both 2.0.36 and 2.1.129 use the 5.1.4
> version of the driver.

FWIW, the stock 2.0.36 kernel in RH5.2 uses the v5.1.2 driver (which
gave me the same problems as 2.1.129 when compiled for SMP).

Anyway, the little patch you passed along did the trick, thanks
Albert!  I now have 2.1.129 running in SMP mode with all four drives
correctly reporting 80MB/s.  Four concurrent iozone tests (one on each
drive) now give r/w results of 9-10MB/s each.  I can work with that.
:-)

-cw-

For those who missed it, around line 8352 of drivers/scsi/aic7xxx.c:

Old:
>         if ( (sc->device_flags[i] & (CFSYNCHISULTRA | CFXFER)) == 0x03) 
>         {

New:
>         if ( ((sc->device_flags[i] & (CFSYNCHISULTRA | CFXFER)) == 0x03) 
> &&
>              !(p->features & AHC_ULTRA2) )
>         {

-- 
|o|/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|o|
|o|      Charlie Wilkinson      |o|
|o| cwilkins at varmint.is.irs.gov |o|
|o|   cwilkins at boink.clark.net  |o|
|o|/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|o|


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