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| 1 | +FABRICS OPTIONS |
| 2 | +--------------- |
| 3 | + |
| 4 | +The following options are common to NVMe over Fabrics commands such as |
| 5 | +`nvme connect`: |
| 6 | + |
| 7 | +-a <traddr>:: |
| 8 | +--traddr=<traddr>:: |
| 9 | + Specify the network address of the controller. For transports |
| 10 | + using IP addressing (e.g. rdma, tcp), this should be an IP address. |
| 11 | + |
| 12 | +--concat:: |
| 13 | + Enable secure concatenation (TCP). |
| 14 | + |
| 15 | +-c <#>:: |
| 16 | +--reconnect-delay=<#>:: |
| 17 | + Set the delay in seconds before reconnect is attempted after a |
| 18 | + connection loss. |
| 19 | + |
| 20 | +-C <secret>:: |
| 21 | +--dhchap-ctrl-secret=<secret>:: |
| 22 | + Controller authentication secret for bi-directional authentication. |
| 23 | + If not specified, bi-directional authentication is not attempted. |
| 24 | + |
| 25 | +-S <secret>:: |
| 26 | +--dhchap-secret=<secret>:: |
| 27 | + Host authentication secret (DH-HMAC-CHAP). Must be provided in ASCII |
| 28 | + format as defined in the NVMe specification. |
| 29 | + |
| 30 | +--disable-sqflow:: |
| 31 | + Disable submission queue flow control. |
| 32 | + |
| 33 | +-G:: |
| 34 | +--data-digest:: |
| 35 | + Enable data digest generation/verification (TCP). |
| 36 | + |
| 37 | +-D:: |
| 38 | +--duplicate-connect:: |
| 39 | + Allow duplicate connections to the same subsystem. |
| 40 | + |
| 41 | +-g:: |
| 42 | +--hdr-digest:: |
| 43 | + Enable header digest generation/verification (TCP). |
| 44 | + |
| 45 | +-f <iface>:: |
| 46 | +--host-iface=<iface>:: |
| 47 | + Specify the network interface to use for the connection. |
| 48 | + |
| 49 | +-I <hostid>:: |
| 50 | +--hostid=<hostid>:: |
| 51 | + Specify the host UUID. |
| 52 | + |
| 53 | +-q <hostnqn>:: |
| 54 | +--hostnqn=<hostnqn>:: |
| 55 | + Override the default host NQN. |
| 56 | + |
| 57 | +-w <traddr>:: |
| 58 | +--host-traddr=<traddr>:: |
| 59 | + Specify the source address on the host side of the connection. |
| 60 | + |
| 61 | +-k <#>:: |
| 62 | +--keep-alive-tmo=<#>:: |
| 63 | + Set the keep-alive timeout in seconds. |
| 64 | + |
| 65 | +--keyring=<keyring>:: |
| 66 | + Keyring to use for TLS key lookup. |
| 67 | + |
| 68 | +-n <subnqn>:: |
| 69 | +--nqn=<subnqn>:: |
| 70 | + Specify the NVMe subsystem NQN to connect to. |
| 71 | + |
| 72 | +-i <#>:: |
| 73 | +--nr-io-queues=<#>:: |
| 74 | + Number of I/O queues to create. |
| 75 | + |
| 76 | +-P <#>:: |
| 77 | +--nr-poll-queues=<#>:: |
| 78 | + Number of polling queues to create. |
| 79 | + |
| 80 | +-W <#>:: |
| 81 | +--nr-write-queues=<#>:: |
| 82 | + Number of write queues to create. |
| 83 | + |
| 84 | +-Q <#>:: |
| 85 | +--queue-size=<#>:: |
| 86 | + Queue depth for I/O queues. |
| 87 | + |
| 88 | +-l <#>:: |
| 89 | +--ctrl-loss-tmo=<#>:: |
| 90 | + Maximum time in seconds to retry reconnect attempts after |
| 91 | + controller loss. |
| 92 | + |
| 93 | +-s <trsvcid>:: |
| 94 | +--trsvcid=<trsvcid>:: |
| 95 | + Transport service identifier (e.g. TCP/rdma port). Default is 4420 |
| 96 | + for RDMA. |
| 97 | + |
| 98 | +-T <#>:: |
| 99 | +--tos=<#>:: |
| 100 | + Type of service value for the connection (TCP). |
| 101 | + |
| 102 | +-t <trtype>:: |
| 103 | +--transport=<trtype>:: |
| 104 | + Specify the transport type. Supported values include: |
| 105 | + |
| 106 | ++ |
| 107 | +[] |
| 108 | +|================= |
| 109 | +|Value | Description |
| 110 | +|rdma | RDMA (RoCE, iWARP, InfiniBand) |
| 111 | +|tcp | TCP/IP |
| 112 | +|fc | Fibre Channel (*experimental*) |
| 113 | +|loop | Local loopback transport |
| 114 | +|================= |
| 115 | + |
| 116 | +--tls:: |
| 117 | + Enable TLS encryption (TCP). |
| 118 | + |
| 119 | +--tls-key=<tls-key>:: |
| 120 | + TLS key for the connection. It is recommended to preload keys |
| 121 | + into the system keyring instead of passing them via the command line. |
| 122 | + |
| 123 | +--tls-key-identity=<identity>:: |
| 124 | + Identity associated with the TLS key. |
| 125 | + |
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