linux-kernel - Re: INITIO scsi driver fails to work properly

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Message-ID: <9f00bd9d0801110154i3b2f9c1flf076823747950196@mail.gmail.com>
Date:	Fri, 11 Jan 2008 11:54:50 +0200
From:	"Filippos Papadopoulos" <psybases@...il.com>
To:	"James Bottomley" <James.Bottomley@...senpartnership.com>
Cc:	linux-scsi@...r.kernel.org, "Chuck Ebbert" <cebbert@...hat.com>,
	"Boaz Harrosh" <bharrosh@...asas.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: INITIO scsi driver fails to work properly

On Jan 11, 2008 7:16 AM, James Bottomley
<James.Bottomley@...senpartnership.com> wrote:
>
> On Fri, 2008-01-04 at 02:18 +0200, Filippos Papadopoulos wrote:
> > First of all let me wish a happy new year.
> > I come back from the vacations and i compiled the initio driver with
> >
> > #define DEBUG_INTERRUPT 1
> > #define DEBUG_QUEUE     1
> > #define DEBUG_STATE     1
> > #define INT_DISC        1
> >
> > I used the sources from 2.6.24-rc6-git9 kernel. At kernel boot time the initio
> > driver prints the following:
> >
> > " scsi: Initio INI-9X00U/UW SCSI device driver
> > Find scb at c0c00000
> > Append pend scb c0c00000;"
> >
> > After 3 seconds the whole system freezes there and i have to reboot.
> >
> >
> >
> > P.S  here is the info from 'lspci -vv' running 2.6.16.13 kernel:
> >
> > "00:08.0 SCSI storage controller: Initio Corporation 360P (rev 02)
> >         Subsystem: Unknown device 9292:0202
> >         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> > ParErr- Stepping- SERR- FastB2B-
> >         Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
> > >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> >         Latency: 32, Cache Line Size 08
> >         Interrupt: pin A routed to IRQ 11
> >         Region 0: I/O ports at d000 [size=256]
>
> This proves the BAR0 to be non zero, but I also take it from your report
> that the
>
> initio: I/O port range 0x0 is busy.
>
> message is also gone?
>


I havent reported "initio: I/O port range 0x0 is busy."


> >         Region 1: Memory at ef000000 (32-bit, non-prefetchable) [size=4K]
> >         [virtual] Expansion ROM at 50000000 [disabled] [size=128K]
> > "
>
> I think there's still one remaining bug from the sg_list conversion,
> namely that cblk->sglen is never set, but it is used to count the number
> of elements in the sg array.  Could you try this patch (on top of
> everything else) and see if the problem is finally fixed?
>

I applied the patch on 2.6.24-rc6-git9 but unfortunatelly same thing happens.


> Thanks,
>
> James
>
> ---
> diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
> index 01bf018..d038459 100644
> --- a/drivers/scsi/initio.c
> +++ b/drivers/scsi/initio.c
> @@ -2603,6 +2603,7 @@ static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * c
>         nseg = scsi_dma_map(cmnd);
>         BUG_ON(nseg < 0);
>         if (nseg) {
> +               cblk->sglen = nseg;
>                 dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0],
>                                           sizeof(struct sg_entry) * TOTAL_SG_ENTRY,
>                                           DMA_BIDIRECTIONAL);
>
>
>
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