On 09/06/2016 05:36 PM, John Garry wrote: > When the v2 hw is attached with many disks through > an expander, there may be OOB reset resulting in a PHY > going down after the speed is negotiated (very low > probability). > > This issue is resolved by modifying the link control > registers to send three identify frames before the PHY > is ready (according to 6.10.3.3.2 in SAS 3.0 spec) and > close ready when the PHY is down. > > Signed-off-by: NengLong Zhao <zhaonenglong@xxxxxxxxxxxxx> > Signed-off-by: John Garry <john.garry@xxxxxxxxxx> > --- > drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 20 ++++++++++++++++---- > 1 file changed, 16 insertions(+), 4 deletions(-) > Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
