On Mon, Apr 4, 2016 at 2:32 PM, Hannes Reinecke <hare@xxxxxxx> wrote: > On 04/04/2016 07:06 AM, Shaun Tancheff wrote: >> As Host Aware drives are becoming available we would like to be able >> to make use of such drives. This series is also intended to be suitable >> for use by Host Managed drives. >> >> The following series is hopefully a reasonable start at adding such >> support. >> >> ZAC/ZBC drives add new commands. Some of this support is already in >> progress by Hannes Reinecke <hare@xxxxxxx>. This patch finishes up a >> couple of scsi <-> ata translations. These patches will be re-worked >> or dropped in favor of Hannes' next release. >> >> With the ZAC support in place adding some additional flags to struct bio >> to identify the new drive requests (Report zones, Open/Close/Reset zones). >> >> With the bio support in place there are two new users added. The first >> user is an ioctl the second user is a device mapper target. >> The user space tools for the ioctl is intended to be acceptable for >> inclusion by util-linux. Initial patches for 2.20.1 and 2.21.1 >> can be found here: >> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_Seagate_ZDM-2DDevice-2DMapper_tree_master_patches_util-2Dlinux&d=CwID-g&c=IGDlg0lD0b-nebmJJ0Kp8A&r=Wg5NqlNlVTT7Ugl8V50qIHLe856QW0qfG3WVYGOrWzA&m=4-JH1zADrs_TK5Uu77zQ1VSbAHgw5wTORr6yOSgYD5M&s=RDPFmAeTZPfhBJm7NWJ98rZLNz6XK6fUaEfuddyReH8&e= >> >> Please consider the new device mapper target, as an RFC. >> >> Patch "Limit bio_endio recursion" is based on an older patch that was >> not picked up. It is not strictly necessary but it does reduce stack >> usage, especially for badly behaved DM targets that return >> DM_MAPIO_REQUEUE too frequently. >> >> Patch "Use PID to seed Stream Id" depends on: >> https://urldefense.proofpoint.com/v2/url?u=https-3A__lkml.kernel.org_r_1457107853-2D8689-2D1-2Dgit-2Dsend-2Demail-2Daxboe-40fb.com&d=CwID-g&c=IGDlg0lD0b-nebmJJ0Kp8A&r=Wg5NqlNlVTT7Ugl8V50qIHLe856QW0qfG3WVYGOrWzA&m=4-JH1zADrs_TK5Uu77zQ1VSbAHgw5wTORr6yOSgYD5M&s=IN4c2F-7PSBRdZ48Vd9a9ErYT6ZC8LU9Gz64JkCkR4o&e= >> >> Patch "Block Zoned Control for Userspace" is a hold over for user space >> tools that have not been updated to use the new block ioctl. The patch >> will be dropped when zdm-tools is updated and sd-tools is replaced >> with util-linux. >> >> This series is based on Linus v4.5 kernel. >> >> Code is also available on github here: >> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_Seagate_ZDM-2DDevice-2DMapper&d=CwID-g&c=IGDlg0lD0b-nebmJJ0Kp8A&r=Wg5NqlNlVTT7Ugl8V50qIHLe856QW0qfG3WVYGOrWzA&m=4-JH1zADrs_TK5Uu77zQ1VSbAHgw5wTORr6yOSgYD5M&s=ORjeO0XATR5F7vYAssdTzdmSeRV3svNBuoL63WOtcno&e= >> >> And a fork of Linus kernel with ZDM branches is available here: >> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_stancheff_linux&d=CwID-g&c=IGDlg0lD0b-nebmJJ0Kp8A&r=Wg5NqlNlVTT7Ugl8V50qIHLe856QW0qfG3WVYGOrWzA&m=4-JH1zADrs_TK5Uu77zQ1VSbAHgw5wTORr6yOSgYD5M&s=HGzFkskoVEIBv0BMxTwLpzVxLZsAqiLNEUKWeqK_Xgk&e= >> >> Shaun Tancheff (12): >> Add ZBC <-> ZAC xlat support for report, open, close, reset, finish >> ata-scsi: Translate ReportZones result to big endian >> BUG: Losing bits on request.cmd_flags >> Add bio/request flags for using ZBC/ZAC commands >> Add ioctl to issue ZBC/ZAC commands via block layer >> Add ata pass-through path for ZAC commands. >> ZDM: New DM target 'zoned' >> RAID 4/5/6: Indicate parity blocks as 'META' >> RAID 4/5/6: Fine-grained TRIM enable for ZDM >> Limit bio_endio recursion >> Stream Id: Use PID to seed Stream Id construction. >> Block Zoned Control for Userspace >> > Please hold off with this series for the moment. Sure no problem, I was planning to re-base on top of your patchset. Just hopping to get some early feedback on the struct bio changes... > I've just finished up porting my ZAC/ZBC patchset and will be posting an > update shortly. > I'm happy to integrate any of your fixes. Thanks! > > 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-block" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at https://urldefense.proofpoint.com/v2/url?u=http-3A__vger.kernel.org_majordomo-2Dinfo.html&d=CwID-g&c=IGDlg0lD0b-nebmJJ0Kp8A&r=Wg5NqlNlVTT7Ugl8V50qIHLe856QW0qfG3WVYGOrWzA&m=4-JH1zADrs_TK5Uu77zQ1VSbAHgw5wTORr6yOSgYD5M&s=NjPE1IDNgJ6Y4TNHshx_mgv4CeKIvcYlEW0FVxUFnNc&e= -- Shaun Tancheff -- 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
