Conke Hu wrote: > There is a HW issue in ATI SB600 SATA that PxSERR.E should not be > set on some conditions, for example, when there is no media in SATA > CD/DVD drive or media is not ready, AHCI controller fails to execute > ATAPI commands and reports PORT_IRQ_TF_ERR, but ATI SB600 SATA > controller sets PxSERR.E at the > same time, which is not necessary. > This patch is just to ignore the INTERNAL ERROR in such case. > Without this patch, ahci error handler will report many errors as > below: > ----------- cut from dmesg ----------- > ata9: soft resetting port > ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300) > ata9.00: configured for UDMA/33 > ata9: EH complete > ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2 > ata9.00: (irq_stat 0x40000001) > ata9.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 > res 51/24:03:00:00:20/00:00:00:00:00/a0 Emask 0x40 (internal error) > ata9: soft resetting port > ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300) > ata9.00: configured for UDMA/33 > ata9: EH complete > ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2 > ata9.00: (irq_stat 0x40000001) > ata9.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x43 data 12 in > res 51/24:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) > -------- end cut --------- > > Signed-off-by: Conke Hu <conke.hu@xxxxxxx> Acked-by: Tejun Heo <htejun@xxxxxxxxx> -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
