On 08/02/2015 06:11 PM, James Bottomley wrote: > On Fri, 2015-07-31 at 15:02 +0200, Hannes Reinecke wrote: >> Hi all, >> >> here is a patchset for adding ZAC host-aware device support to libata. >> Main bits are translations for ZBC IN and ZBC OUT; others are the >> required plumbing like generating the correct VPD pages. >> James, do you require a separate patch for adding ZBC IN and ZBC OUT >> or is it okay to have it queued here? > > This really belongs in the ZBC patch set, doesn't it? Why isn't it > there. You can't avoid the dependency. If it goes with the ZAC patch > set, then the ZBC one depends on ZAC. If it goes properly with ZBC then > you need an additional patch adding the ATA translations after the ZBC > one. On the whole, I'd prefer the latter so we always have the required > consumers of the API. > > In fact, if I read the dependencies correctly, you need the ZBC patches > first, don't you ... otherwise there's nothing to drive host aware ZAC? > No. These patches just implement a proper SATL for ZAC drives. So in effect they just bring libata support on par with 'real' ZBC drives, allowing things like 'sg_rep_zones' to work properly there. As such I've considered those patches to be a precursor for ZBC support. But then, I don't mind how it's being handled. I surely can turn things around, ZBC support first, and ZAC as an add-on to that. Just say the word. 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
