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1# SPDX-License-Identifier: GPL-2.0-only
2config NVME_CORE
3 tristate
4 select BLK_DEV_INTEGRITY_T10 if BLK_DEV_INTEGRITY
5
6config BLK_DEV_NVME
7 tristate "NVM Express block device"
8 depends on PCI && BLOCK
9 select NVME_CORE
10 help
11 The NVM Express driver is for solid state drives directly
12 connected to the PCI or PCI Express bus. If you know you
13 don't have one of these, it is safe to answer N.
14
15 To compile this driver as a module, choose M here: the
16 module will be called nvme.
17
18config NVME_MULTIPATH
19 bool "NVMe multipath support"
20 depends on NVME_CORE
21 help
22 This option enables support for multipath access to NVMe
23 subsystems. If this option is enabled only a single
24 /dev/nvmeXnY device will show up for each NVMe namespaces,
25 even if it is accessible through multiple controllers.
26
27config NVME_HWMON
28 bool "NVMe hardware monitoring"
29 depends on (NVME_CORE=y && HWMON=y) || (NVME_CORE=m && HWMON)
30 help
31 This provides support for NVMe hardware monitoring. If enabled,
32 a hardware monitoring device will be created for each NVMe drive
33 in the system.
34
35config NVME_FABRICS
36 tristate
37
38config NVME_RDMA
39 tristate "NVM Express over Fabrics RDMA host driver"
40 depends on INFINIBAND && INFINIBAND_ADDR_TRANS && BLOCK
41 select NVME_CORE
42 select NVME_FABRICS
43 select SG_POOL
44 help
45 This provides support for the NVMe over Fabrics protocol using
46 the RDMA (Infiniband, RoCE, iWarp) transport. This allows you
47 to use remote block devices exported using the NVMe protocol set.
48
49 To configure a NVMe over Fabrics controller use the nvme-cli tool
50 from https://github.com/linux-nvme/nvme-cli.
51
52 If unsure, say N.
53
54config NVME_FC
55 tristate "NVM Express over Fabrics FC host driver"
56 depends on BLOCK
57 depends on HAS_DMA
58 select NVME_CORE
59 select NVME_FABRICS
60 select SG_POOL
61 help
62 This provides support for the NVMe over Fabrics protocol using
63 the FC transport. This allows you to use remote block devices
64 exported using the NVMe protocol set.
65
66 To configure a NVMe over Fabrics controller use the nvme-cli tool
67 from https://github.com/linux-nvme/nvme-cli.
68
69 If unsure, say N.
70
71config NVME_TCP
72 tristate "NVM Express over Fabrics TCP host driver"
73 depends on INET
74 depends on BLK_DEV_NVME
75 select NVME_FABRICS
76 select CRYPTO
77 select CRYPTO_CRC32C
78 help
79 This provides support for the NVMe over Fabrics protocol using
80 the TCP transport. This allows you to use remote block devices
81 exported using the NVMe protocol set.
82
83 To configure a NVMe over Fabrics controller use the nvme-cli tool
84 from https://github.com/linux-nvme/nvme-cli.
85
86 If unsure, say N.