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|
What: /config/nvmet/ports/N/addr_adrfam
What: /config/nvmet/ports/N/addr_portid
What: /config/nvmet/ports/N/addr_traddr
What: /config/nvmet/ports/N/addr_trsvcid
What: /config/nvmet/ports/N/addr_trtype
What: /config/nvmet/ports/N/addr_treq
Date: June 2016
KernelVersion: 4.8
Contact: Christoph Hellwig <hch@lst.de>
Description:
Address attributes for an NVMe-oF target port.
addr_adrfam: Shows or sets the address family. Accepted
values: "pcie", "ipv4", "ipv6", "ib", "fc", "pci", "loop".
addr_portid: Shows or sets the port identifier (u16).
addr_traddr: Shows or sets the transport address string.
addr_trsvcid: Shows or sets the transport service identifier.
addr_trtype: Shows or sets the transport type. Accepted
values: "rdma", "fc", "tcp", "pci", "loop". Also
initializes default TSAS values.
addr_treq: Shows or sets the transport security requirements.
Accepted values: "not specified", "required",
"not required". For TCP with TLS1.3, "not specified" is
rejected.
All attributes require the port to be disabled before
modification.
What: /config/nvmet/ports/N/referrals/NAME/addr_adrfam
What: /config/nvmet/ports/N/referrals/NAME/addr_portid
What: /config/nvmet/ports/N/referrals/NAME/addr_traddr
What: /config/nvmet/ports/N/referrals/NAME/addr_trsvcid
What: /config/nvmet/ports/N/referrals/NAME/addr_trtype
What: /config/nvmet/ports/N/referrals/NAME/addr_treq
What: /config/nvmet/ports/N/referrals/NAME/enable
Date: June 2016
KernelVersion: 4.8
Contact: Christoph Hellwig <hch@lst.de>
Description:
Address attributes and enable control for a referral entry
under a port. The addr_* attributes have the same semantics
as the corresponding port-level attributes. The enable
attribute shows or sets whether this referral is enabled
(boolean).
What: /config/nvmet/ports/N/param_inline_data_size
Date: June 2018
KernelVersion: 4.19
Contact: Steve Wise <swise@opengridcomputing.com>
Description:
Shows or sets the inline data size for this port. Default
is -1 which lets the transport choose. The port must be
disabled before modification.
What: /config/nvmet/ports/N/ana_groups/ID/ana_state
Date: June 2018
KernelVersion: 4.19
Contact: Christoph Hellwig <hch@lst.de>
Description:
Shows or sets the ANA (Asymmetric Namespace Access) state
for this group on this port. Accepted values: "optimized",
"non-optimized", "inaccessible", "persistent-loss",
"change". Changes trigger an ANA change event.
What: /config/nvmet/ports/N/param_pi_enable
Date: May 2020
KernelVersion: 5.8
Contact: Israel Rukshin <israelr@mellanox.com>
Description:
Shows or sets whether protection information (PI) is
enabled/supported for this port. Accepts boolean value.
Only available when CONFIG_BLK_DEV_INTEGRITY is enabled.
The port must be disabled before modification.
What: /config/nvmet/ports/N/addr_tsas
Date: August 2023
KernelVersion: 6.7
Contact: Hannes Reinecke <hare@suse.de>
Description:
Shows or sets the transport-specific address subtype. For
TCP transport, accepted values: "none", "tls1.3" (requires
CONFIG_NVME_TARGET_TCP_TLS). For RDMA transport, shows the
QP type: "connected" or "datagram". The port must be
disabled before modification.
What: /config/nvmet/ports/N/param_max_queue_size
Date: January 2024
KernelVersion: 6.9
Contact: Max Gurtovoy <mgurtovoy@nvidia.com>
Description:
Shows or sets the maximum queue size for this port. Default
is -1 which lets the transport choose. The port must be
disabled before modification.
What: /config/nvmet/ports/N/param_mdts
Date: April 2026
KernelVersion: 7.1
Contact: Aurelien Aptel <aaptel@nvidia.com>
Description:
Shows or sets the maximum data transfer size for this port.
Default is -1 which lets the transport choose. The port
must be disabled before modification.
What: /config/nvmet/subsystems/NAME/attr_allow_any_host
Date: June 2016
KernelVersion: 4.8
Contact: Christoph Hellwig <hch@lst.de>
Description:
Shows or sets whether any host is allowed to connect.
Accepts boolean value. Cannot be set to 1 if explicit
hosts are linked in the allowed_hosts/ directory.
What: /config/nvmet/subsystems/NAME/namespaces/NSID/device_path
What: /config/nvmet/subsystems/NAME/namespaces/NSID/device_nguid
What: /config/nvmet/subsystems/NAME/namespaces/NSID/enable
Date: June 2016
KernelVersion: 4.8
Contact: Christoph Hellwig <hch@lst.de>
Description:
Namespace attributes added with the initial NVMe target.
device_path: Shows or sets the backend block device path.
The namespace must be disabled before modification.
device_nguid: Shows or sets the NGUID (128-bit identifier).
Accepts 32 hex digits with optional "-" or ":" separators.
The namespace must be disabled before modification.
enable: Shows or sets whether this namespace is enabled
(boolean).
What: /config/nvmet/subsystems/NAME/namespaces/NSID/device_uuid
Date: June 2017
KernelVersion: 4.13
Contact: Johannes Thumshirn <jthumshirn@suse.de>
Description:
Shows or sets the UUID for this namespace. The namespace
must be disabled before modification.
What: /config/nvmet/subsystems/NAME/attr_version
What: /config/nvmet/subsystems/NAME/attr_serial
Date: July 2017
KernelVersion: 4.13
Contact: Johannes Thumshirn <jthumshirn@suse.de>
Description:
attr_version: Shows or sets the NVMe version reported by
this subsystem. Format: "major.minor" or
"major.minor.tertiary". Cannot be changed after the
subsystem has been discovered.
attr_serial: Shows or sets the serial number. Must be a
1-20 byte ASCII string (characters 0x20-0x7e). Cannot be
changed after the subsystem has been discovered.
What: /config/nvmet/subsystems/NAME/namespaces/NSID/ana_grpid
Date: June 2018
KernelVersion: 4.19
Contact: Christoph Hellwig <hch@lst.de>
Description:
Shows or sets the ANA (Asymmetric Namespace Access) Group
ID for this namespace. Must be between 1 and 128. Changing
triggers an ANA event notification.
What: /config/nvmet/subsystems/NAME/namespaces/NSID/buffered_io
Date: June 2018
KernelVersion: 4.19
Contact: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Description:
Shows or sets whether buffered I/O is used for this
namespace. Accepts boolean value. The namespace must be
disabled before modification.
What: /config/nvmet/subsystems/NAME/namespaces/NSID/p2pmem
Date: October 2018
KernelVersion: 4.20
Contact: Logan Gunthorpe <logang@deltatee.com>
Description:
Shows or sets the P2P DMA memory device for this namespace.
Accepts a PCI device BDF, "auto", or "none". The namespace
must be disabled before modification. Only available when
CONFIG_PCI_P2PDMA is enabled.
What: /config/nvmet/subsystems/NAME/attr_cntlid_min
What: /config/nvmet/subsystems/NAME/attr_cntlid_max
Date: January 2020
KernelVersion: 5.7
Contact: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Description:
attr_cntlid_min: Shows or sets the minimum controller ID
(u16). Must be nonzero and not greater than attr_cntlid_max.
attr_cntlid_max: Shows or sets the maximum controller ID
(u16). Must be nonzero and not less than attr_cntlid_min.
What: /config/nvmet/subsystems/NAME/attr_model
Date: January 2020
KernelVersion: 5.7
Contact: Mark Ruijter <MRuijter@onestopsystems.com>
Description:
Shows or sets the model number for this subsystem. Must
be a 1-40 byte ASCII string (characters 0x20-0x7e).
Cannot be changed after the subsystem has been discovered.
What: /config/nvmet/subsystems/NAME/attr_pi_enable
Date: May 2020
KernelVersion: 5.8
Contact: Israel Rukshin <israelr@mellanox.com>
Description:
Shows or sets whether protection information (PI) is
enabled/supported for this subsystem. Accepts boolean
value. Only available when CONFIG_BLK_DEV_INTEGRITY is
enabled.
What: /config/nvmet/subsystems/NAME/namespaces/NSID/revalidate_size
Date: May 2020
KernelVersion: 5.8
Contact: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Description:
Write-only. Writing 1 triggers namespace size revalidation.
If the size has changed, a namespace changed AEN is sent.
The namespace must be enabled.
What: /config/nvmet/subsystems/NAME/passthru/device_path
What: /config/nvmet/subsystems/NAME/passthru/enable
Date: July 2020
KernelVersion: 5.9
Contact: Logan Gunthorpe <logang@deltatee.com>
Description:
Passthrough mode attributes.
device_path: Shows or sets the NVMe controller character
device path (e.g., /dev/nvme0). Cannot be changed while
the passthrough controller is active.
enable: Shows or sets whether passthrough mode is enabled
(boolean).
Only available when CONFIG_NVME_TARGET_PASSTHRU is enabled.
What: /config/nvmet/subsystems/NAME/passthru/admin_timeout
What: /config/nvmet/subsystems/NAME/passthru/io_timeout
Date: November 2020
KernelVersion: 5.11
Contact: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Description:
admin_timeout: Shows or sets the admin command timeout for
passthrough mode, in jiffies.
io_timeout: Shows or sets the I/O command timeout for
passthrough mode, in jiffies.
Only available when CONFIG_NVME_TARGET_PASSTHRU is enabled.
What: /config/nvmet/subsystems/NAME/passthru/clear_ids
Date: June 2022
KernelVersion: 5.19
Contact: Alan Adamson <alan.adamson@oracle.com>
Description:
Shows or sets whether to clear identify data IDs in
passthrough mode. Only available when
CONFIG_NVME_TARGET_PASSTHRU is enabled.
What: /config/nvmet/subsystems/NAME/attr_qid_max
Date: August 2022
KernelVersion: 6.1
Contact: Daniel Wagner <dwagner@suse.de>
Description:
Shows or sets the maximum queue ID (number of I/O queues,
u16). Must be between 1 and 128. Changing this value
forces reconnection of all connected controllers.
What: /config/nvmet/subsystems/NAME/attr_ieee_oui
Date: November 2022
KernelVersion: 6.2
Contact: Aleksandr Miloserdov <a.miloserdov@yadro.com>
Description:
Shows or sets the IEEE OUI for this subsystem. Displayed
in "0x%06x" format. Must be a 24-bit value. Cannot be
changed after the subsystem has been discovered.
What: /config/nvmet/subsystems/NAME/attr_firmware
Date: November 2022
KernelVersion: 6.2
Contact: Aleksandr Miloserdov <a.miloserdov@yadro.com>
Description:
Shows or sets the firmware revision string for this
subsystem. Must be a 1-8 byte ASCII string (characters
0x20-0x7e). Cannot be changed after the subsystem has
been discovered.
What: /config/nvmet/subsystems/NAME/namespaces/NSID/resv_enable
Date: November 2024
KernelVersion: 6.13
Contact: Guixin Liu <kanie@linux.alibaba.com>
Description:
Shows or sets whether persistent reservation support is
enabled for this namespace. Accepts boolean value. The
namespace must be disabled before modification.
What: /config/nvmet/subsystems/NAME/attr_vendor_id
What: /config/nvmet/subsystems/NAME/attr_subsys_vendor_id
Date: January 2025
KernelVersion: 6.14
Contact: Damien Le Moal <dlemoal@kernel.org>
Description:
attr_vendor_id: Shows or sets the PCI vendor ID reported
by this subsystem. Displayed in "0x%x" format.
attr_subsys_vendor_id: Shows or sets the PCI subsystem
vendor ID. Displayed in "0x%x" format.
What: /config/nvmet/hosts/HOSTNQN/dhchap_key
What: /config/nvmet/hosts/HOSTNQN/dhchap_ctrl_key
What: /config/nvmet/hosts/HOSTNQN/dhchap_hash
What: /config/nvmet/hosts/HOSTNQN/dhchap_dhgroup
Date: June 2022
KernelVersion: 6.0
Contact: Hannes Reinecke <hare@suse.de>
Description:
DH-HMAC-CHAP authentication attributes.
dhchap_key: Shows or sets the host secret key. Accepts a
key string in "DHHC-1:" format.
dhchap_ctrl_key: Shows or sets the controller secret key
for bidirectional authentication. Same format as dhchap_key.
dhchap_hash: Shows or sets the HMAC hash algorithm.
Accepted values: "hmac(sha256)", "hmac(sha384)",
"hmac(sha512)".
dhchap_dhgroup: Shows or sets the Diffie-Hellman group for
DH-HMAC-CHAP key exchange. Accepted values: "null",
"ffdhe2048", "ffdhe3072", "ffdhe4096", "ffdhe6144".
Non-null groups require the corresponding KPP crypto
algorithm to be available.
Only available when CONFIG_NVME_TARGET_AUTH is enabled.
What: /config/nvmet/discovery_nqn
Date: April 2024
KernelVersion: 6.9
Contact: Hannes Reinecke <hare@kernel.org>
Description:
Shows or sets the NQN of the discovery subsystem. The
value must be unique and not duplicate any existing
subsystem name.
|
