Thread (27 messages) 27 messages, 6 authors, 2002-09-27

Re: Warning - running *really* short on DMA buffers while doing file transfers

From: Jens Axboe <hidden>
Date: 2002-09-27 12:50:07
Also in: lkml

On Fri, Sep 27 2002, Matthew Jacob wrote:
[ .. all sorts of nice discussion, but not on our argument point ]
quoted
Agrh. Who's saying 'fix' the hba driver? Either I'm not expressing
myself very clearly, or you are simply not reading what I write.
I (foolishly) leapt in when you said "253 is 'over the top'". You seemed
to imply that the aic7xxx driver was at fault and should be limiting the
amount it is sending out. My (mostly) only beef with what you've written
is with that implication- mainly as "don't send so many damned commands
if you think they're too many". If the finger pointing at aic7xx is not
what you're implying, then this has been a waste of email bandwidth-
sorry.
It's not aimed at any specific hba driver, it could be any. 253 would be
over the top for any of them, it just so happens that aic7xxx has this
as the default :-)

So while it is definitely not the aic7xxx driver doing the starvation
(it's the device), the aic7xxx driver is (_in my oppinion) somewhat at
fault for setting it so high _as a default_.

Hopefully that's the end of this thread :)

-- 
Jens Axboe
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