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authorNiklas Cassel <niklas.cassel@wdc.com>2020-07-14 23:18:24 +0200
committerJens Axboe <axboe@kernel.dk>2020-07-15 14:26:11 -0600
commit659bf827ba8f1183b714341d8a1d4b1e446178d9 (patch)
tree24da945eb5aaff0fbcc41bd411e79653a15379f4 /drivers/nvme
parente15864f8ea05b24071b07300459ae7e511d0b938 (diff)
downloadlinux-659bf827ba8f1183b714341d8a1d4b1e446178d9.tar.bz2
block: add max_active_zones to blk-sysfs
Add a new max_active zones definition in the sysfs documentation. This definition will be common for all devices utilizing the zoned block device support in the kernel. Export max_active_zones according to this new definition for NVMe Zoned Namespace devices, ZAC ATA devices (which are treated as SCSI devices by the kernel), and ZBC SCSI devices. Add the new max_active_zones member to struct request_queue, rather than as a queue limit, since this property cannot be split across stacking drivers. For SCSI devices, even though max active zones is not part of the ZBC/ZAC spec, export max_active_zones as 0, signifying "no limit". Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Reviewed-by: Javier González <javier@javigon.com> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/zns.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/host/zns.c b/drivers/nvme/host/zns.c
index 3d80b9cf6bfc..57cfd78731fb 100644
--- a/drivers/nvme/host/zns.c
+++ b/drivers/nvme/host/zns.c
@@ -97,6 +97,7 @@ int nvme_update_zone_info(struct gendisk *disk, struct nvme_ns *ns,
q->limits.zoned = BLK_ZONED_HM;
blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
blk_queue_max_open_zones(q, le32_to_cpu(id->mor) + 1);
+ blk_queue_max_active_zones(q, le32_to_cpu(id->mar) + 1);
free_data:
kfree(id);
return status;