On Thu, Jun 19, 2014 at 07:44:28PM +0530, Suman Tripathi wrote: > Hi Tejun, > > On Thu, Jun 19, 2014 at 12:20:54PM +0530, Suman Tripathi wrote: > > + /* > > + * Restart the dma engine if the last cmd issued > > + * is IDENTIFY DEVICE command > > + */ > > + if (unlikely(ctx->last_cmd[ap->port_no] == ATA_CMD_ID_ATA)) > > + ahci_restart_engine(ap); > > Is it really only for IDENTIFY? Are other PIO commands okay? > [Suman] : We root cause it , It is the IDENTIFY DEVICE command . Other are > ok > Theprevious version applied it to all PIO commands, right? > [suman] : The v2 contains only the IDENTIFY DEVICE. The v1 is contains for > all PIO commands and that didn't work because the ERRATA mentions that it > happens for the IDENTIFY DEVICE command. So, it's just ATA_CMD_ID_ATA and ATA_CMD_ID_ATAPI is okay? That's kinda weird. -- tejun -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
