Hi all, I'd like to discusss 'Integrated Unit Attention handling' at LSF/MM 2015. Currently we're interpreting some Unit Attention codes and send out uevents, with the hope that some userspace application will make use of this. However, some UAs are easily handled within the kernel directly, eg - REPORT LUN DATA CHANGED: this could easily trigger a rescan of the scsi host driving that LUN. - INQUIRY DATA CHANGED: Rescan the VPD pages and INQUIRY data itself When implementing such an integrated UA handling, however, we would need to revisit the design choice of having the inquiry data fixed to struct scsi_device. Currently any modification to the inquiry data requires a complete device removal; this is not really feasible for integrated event handling. I'd like to discuss if such an integrated UA handling is desirable and, if so, if devices should become flexible to have the inquiry data changed on the fly. Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (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
