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authorKeith Busch <keith.busch@wdc.com>2020-06-29 12:06:41 -0700
committerChristoph Hellwig <hch@lst.de>2020-07-08 16:16:20 +0200
commit240e6ee272c07a2636dfc7d65f5bbb18377c49e5 (patch)
treecfce3745e909ccb33e8d0539119540c25e369ee9 /block
parentbe93e87e780253780df9bb6ecc9bc1199b0d94c3 (diff)
nvme: support for zoned namespaces
Add support for NVM Express Zoned Namespaces (ZNS) Command Set defined in NVM Express TP4053. Zoned namespaces are discovered based on their Command Set Identifier reported in the namespaces Namespace Identification Descriptor list. A successfully discovered Zoned Namespace will be registered with the block layer as a host managed zoned block device with Zone Append command support. A namespace that does not support append is not supported by the driver. Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Javier González <javier.gonz@samsung.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com> Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com> Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com> Signed-off-by: Aravind Ramesh <aravind.ramesh@wdc.com> Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Matias Bjørling <matias.bjorling@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Keith Busch <keith.busch@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'block')
-rw-r--r--block/Kconfig5
1 files changed, 3 insertions, 2 deletions
diff --git a/block/Kconfig b/block/Kconfig
index 9357d7302398..bbad5e8bbffe 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -86,9 +86,10 @@ config BLK_DEV_ZONED
select MQ_IOSCHED_DEADLINE
help
Block layer zoned block device support. This option enables
- support for ZAC/ZBC host-managed and host-aware zoned block devices.
+ support for ZAC/ZBC/ZNS host-managed and host-aware zoned block
+ devices.
- Say yes here if you have a ZAC or ZBC storage device.
+ Say yes here if you have a ZAC, ZBC, or ZNS storage device.
config BLK_DEV_THROTTLING
bool "Block layer bio throttling support"