From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] VIA VT8237 SATA/RAID i/o errors, dma doesnt work
Date: Fri, 8 Feb 2008 09:55:25 -0500 [thread overview]
Message-ID: <675fc52d4267e9ef68bedb3cfb468f58@quanstro.net> (raw)
In-Reply-To: <47AC224F.4090700@gmx.de>
> I changed sdata.c to:
>
> return SDretry if starting dmarequest fails,
> return SDretry and reseting controller if dma times out,
> return SDretry on request is done and error signaled,
>
> and added a counter that resets the controller if a request
> was 1000 times retried...
you might want to loop internally instead of counting to 1000.
(which may be too high. i would think that 2 or 4 would do it.
have you seen differently?) if more than one thread is doing i/o
to the disk and you have a bad sector, it may take an arbitrary
amount of time before you discover this fact.
> The machine ran the whole night with bodth drives in DMA and heavy load.
> vacing, pingflooded from outside, ddtest on both drives and still alive! :-)
good deal. via's product page
www.via.com.tw/en/products/chipsets/southbridge/vt8237/specs.jsp
indicates that the nic & sata controller are both integrated into the sb.
perhaps this extra southbridge configuration (pci.c) would make the
sdata hack unnecessary?
static void
viaset(Pcidev *p, uchar link, uchar irq)
{
uchar pirq;
pirq = pcicfgr8(p, 0x55 + (link >> 1));
pirq &= (link & 1)? 0x0f: 0xf0;
pirq |= (link & 1)? (irq << 4): (irq & 15);
pcicfgw8(p, 0x55 + (link>>1), pirq);
if(p->vid != 0x3177 && p->vid != 0x3227)
return;
/* Set transition time to max */
pcicfgw8(p, 0xec, pcicfgr8(p, 0xec) & ~4);
pcicfgw8(p, 0xe4, pcicfgr8(p, 0xe4) & ~0x80);
pcicfgw8(p, 0xe5, pcicfgr8(p, 0xe5) | 0x80);
// if(pcicfgr8(p, 0x81) & 0x80)
// acpiregs = pcicfgr32(p, 0x88) & 0xff00;
}
- erik
next prev parent reply other threads:[~2008-02-08 14:55 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <54b639a7eb08c31e4ef2a6d9fd7b6a62@quanstro.net>
2008-02-08 9:35 ` Kernel Panic
2008-02-08 14:55 ` erik quanstrom [this message]
2008-02-08 15:34 ` [9fans] VIA VT8237 SATA/RAID i/o errors, dma doesnt work (VIA Rhine II) Kernel Panic
2008-02-08 14:56 ` [9fans] VIA VT8237 SATA/RAID i/o errors, dma doesnt work Robert Raschke
2008-02-08 15:27 ` Robert Raschke
2008-02-06 17:58 [9fans] usb ohci support arrives -- another caution Sape Mullender
2008-02-06 19:23 ` [9fans] VIA VT8237 SATA/RAID i/o errors, dma doesnt work cinap_lenrek
2008-02-06 20:04 ` erik quanstrom
2008-02-06 22:29 ` cinap_lenrek
2008-02-06 22:40 ` erik quanstrom
2008-02-06 23:26 ` cinap_lenrek
-- strict thread matches above, loose matches on Subject: below --
2008-02-05 22:13 cinap_lenrek
2008-02-06 8:41 ` Kernel Panic
2008-02-06 9:45 ` erik quanstrom
2008-02-06 10:43 ` Kernel Panic
2008-02-06 11:03 ` erik quanstrom
2008-02-05 8:18 Kernel Panic
2008-02-05 8:54 ` Lorenzo Fernando Bivens de la Fuente
2008-02-05 13:20 ` erik quanstrom
2008-02-05 19:48 ` Robert Raschke
2008-02-06 2:01 ` arisawa
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