| Message ID | 20090927.193419.17010.1@webmail21.vgs.untd.com |
|---|---|
| State | Rejected |
| Delegated to: | David Miller |
| Headers | show |
On 09/27/2009 07:34 PM, Michael Gavlick wrote: > The IDE driver complains about an 80-wire cable detection failure and falls back to UDMA/33 for the old IBM-DJNA-371350 Rev. J7NOA30K HD even though it is an UDMA/66 HD. > > Kernel Message: > "hdb: host max PIO5 wanted PIO255(auto-tune) selected PIO4 > hdb: drive side 80-wire cable detection failed, limiting max speed to UDMA33 > hdb: UDMA/33 mode selected" > > This patch disables the word 93 validity check in /drivers/ide/ide-iops.c for this particular hardware by adding it to the buggy firmware ivb_list. > > diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c > index 6cc6c83..6d6f78f 100644 > --- a/drivers/ide/ide-iops.c > +++ b/drivers/ide/ide-iops.c > @@ -218,6 +218,7 @@ static const struct drive_list_entry ivb_list[] = { > { "TSSTcorp CDDVDW SH-S202H" , "SB00" }, > { "TSSTcorp CDDVDW SH-S202H" , "SB01" }, > { "SAMSUNG SP0822N" , "WA100-10" }, > + { "IBM-DJNA-371350" , "J7NOA30K" }, > { NULL , NULL } Would you create the libata version of this patch, too, please? We are [very slowly] migrating away from the old-IDE driver. Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Michael Gavlick writes: > The IDE driver complains about an 80-wire cable detection failure and falls back to UDMA/33 for the old IBM-DJNA-371350 Rev. J7NOA30K HD even though it is an UDMA/66 HD. > > Kernel Message: > "hdb: host max PIO5 wanted PIO255(auto-tune) selected PIO4 > hdb: drive side 80-wire cable detection failed, limiting max speed to UDMA33 > hdb: UDMA/33 mode selected" > > This patch disables the word 93 validity check in /drivers/ide/ide-iops.c for this particular hardware by adding it to the buggy firmware ivb_list. Have you verified that the cable actually is 80-wire? If the problem is buggy disk firmware, the message should disappear if you connect a different known good UDMA/66 or better disk to this cable. What model is the IDE controller? -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Sun, 27 Sep 2009 23:34:19 GMT
"Michael Gavlick" <mgavl69@juno.com> wrote:
> The IDE driver complains about an 80-wire cable detection failure and falls back to UDMA/33 for the old IBM-DJNA-371350 Rev. J7NOA30K HD even though it is an UDMA/66 HD.
You need to verify that this isn't a problem with the controller, the
driver or the configuration before submitting such a patch.
It's a very common drive so the fact nobody has reported it before makes
me extremely suspicious of your report being a true IVB error - the drive
is also rather new for that bug.
Alan
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diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 6cc6c83..6d6f78f 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -218,6 +218,7 @@ static const struct drive_list_entry ivb_list[] = { { "TSSTcorp CDDVDW SH-S202H" , "SB00" }, { "TSSTcorp CDDVDW SH-S202H" , "SB01" }, { "SAMSUNG SP0822N" , "WA100-10" }, + { "IBM-DJNA-371350" , "J7NOA30K" }, { NULL , NULL } };