From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Hi,
This is second version of series implementing the RDAMtool - the tool
to configure RDMA devices. The initial proposal was sent as RFC [1] and
was based on sysfs entries as POC.
The current series was rewritten completely to work with RDMA netlinks as
a source of user<->kernel communications. In order to achieve that, the
RDMA netlinks were extensively refactored and modernized [2, 3, 4 and 5].
The following is an example of various runs on my machine with 5 devices
(4 in IB mode and one in Ethernet mode)
### Without parameters
$ rdma
Usage: rdma [ OPTIONS ] OBJECT { COMMAND | help }
where OBJECT := { dev | link | help }
OPTIONS := { -V[ersion] | -d[etails]}
### With unspecified device name
$ rdma dev
1: mlx5_0: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:3457 sys_image_guid 5254:00c0:fe12:3457
2: mlx5_1: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:3458 sys_image_guid 5254:00c0:fe12:3458
3: mlx5_2: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:3459 sys_image_guid 5254:00c0:fe12:3459
4: mlx5_3: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:345a sys_image_guid 5254:00c0:fe12:345a
5: mlx5_4: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:345b sys_image_guid 5254:00c0:fe12:345b
### Detailed mode
$ rdma -d dev
1: mlx5_0: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:3457 sys_image_guid 5254:00c0:fe12:3457
caps: <BAD_PKEY_CNTR, BAD_QKEY_CNTR, CHANGE_PHY_PORT, PORT_ACTIVE_EVENT, SYS_IMAGE_GUID, RC_RNR_NAK_GEN, MEM_WINDOW, UD_IP_CSUM, UD_TSO, XRC, MEM_MGT_EXTENSIONS, BLOCK_MULTICAST_LOOPBACK, MEM_WINDOW_TYPE_2B, RAW_IP_CSUM, SIGNATURE_HANDOVER, VIRTUAL_FUNCTION>
2: mlx5_1: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:3458 sys_image_guid 5254:00c0:fe12:3458
caps: <BAD_PKEY_CNTR, BAD_QKEY_CNTR, CHANGE_PHY_PORT, PORT_ACTIVE_EVENT, SYS_IMAGE_GUID, RC_RNR_NAK_GEN, MEM_WINDOW, UD_IP_CSUM, UD_TSO, XRC, MEM_MGT_EXTENSIONS, BLOCK_MULTICAST_LOOPBACK, MEM_WINDOW_TYPE_2B, RAW_IP_CSUM, SIGNATURE_HANDOVER, VIRTUAL_FUNCTION>
3: mlx5_2: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:3459 sys_image_guid 5254:00c0:fe12:3459
caps: <BAD_PKEY_CNTR, BAD_QKEY_CNTR, CHANGE_PHY_PORT, PORT_ACTIVE_EVENT, SYS_IMAGE_GUID, RC_RNR_NAK_GEN, MEM_WINDOW, UD_IP_CSUM, UD_TSO, XRC, MEM_MGT_EXTENSIONS, BLOCK_MULTICAST_LOOPBACK, MEM_WINDOW_TYPE_2B, RAW_IP_CSUM, SIGNATURE_HANDOVER, VIRTUAL_FUNCTION>
4: mlx5_3: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:345a sys_image_guid 5254:00c0:fe12:345a
caps: <BAD_PKEY_CNTR, BAD_QKEY_CNTR, CHANGE_PHY_PORT, PORT_ACTIVE_EVENT, SYS_IMAGE_GUID, RC_RNR_NAK_GEN, MEM_WINDOW, UD_IP_CSUM, UD_TSO, XRC, MEM_MGT_EXTENSIONS, BLOCK_MULTICAST_LOOPBACK, MEM_WINDOW_TYPE_2B, RAW_IP_CSUM, SIGNATURE_HANDOVER, VIRTUAL_FUNCTION>
5: mlx5_4: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:345b sys_image_guid 5254:00c0:fe12:345b
caps: <BAD_PKEY_CNTR, BAD_QKEY_CNTR, CHANGE_PHY_PORT, PORT_ACTIVE_EVENT, SYS_IMAGE_GUID, RC_RNR_NAK_GEN, MEM_WINDOW, UD_IP_CSUM, UD_TSO, XRC, MEM_MGT_EXTENSIONS, BLOCK_MULTICAST_LOOPBACK, MEM_WINDOW_TYPE_2B, RAW_IP_CSUM, SIGNATURE_HANDOVER, VIRTUAL_FUNCTION>
### Specific device
$ rdma dev show mlx5_4
5: mlx5_4: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:345b sys_image_guid 5254:00c0:fe12:345b
### Specific device in detailed mode
$ rdma dev show mlx5_4 -d
5: mlx5_4: node_type SWITCH fw 2.8.9999 node_guid 5254:00c0:fe12:345b sys_image_guid 5254:00c0:fe12:345b
caps: <BAD_PKEY_CNTR, BAD_QKEY_CNTR, CHANGE_PHY_PORT, PORT_ACTIVE_EVENT, SYS_IMAGE_GUID, RC_RNR_NAK_GEN, MEM_WINDOW, UD_IP_CSUM, UD_TSO, XRC, MEM_MGT_EXTENSIONS, BLOCK_MULTICAST_LOOPBACK, MEM_WINDOW_TYPE_2B, RAW_IP_CSUM, SIGNATURE_HANDOVER, VIRTUAL_FUNCTION>
### Unknown command (caps)
$ rdma dev show mlx5_4 caps
Unknown parameter 'caps'.
### Link properties without device name
$ rdma link
1/1: mlx5_0/1: subnet_prefix fe80:0000:0000:0000 lid 13399 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
2/1: mlx5_1/1: subnet_prefix fe80:0000:0000:0000 lid 13400 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
3/1: mlx5_2/1: subnet_prefix fe80:0000:0000:0000 lid 13401 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
4/1: mlx5_3/1: state DOWN physical_state DISABLED
5/1: mlx5_4/1: subnet_prefix fe80:0000:0000:0000 lid 13403 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
### Link properties in detailed mode
$ rdma link -d
1/1: mlx5_0/1: subnet_prefix fe80:0000:0000:0000 lid 13399 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
caps: <AUTO_MIGR>
2/1: mlx5_1/1: subnet_prefix fe80:0000:0000:0000 lid 13400 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
caps: <AUTO_MIGR>
3/1: mlx5_2/1: subnet_prefix fe80:0000:0000:0000 lid 13401 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
caps: <AUTO_MIGR>
4/1: mlx5_3/1: state DOWN physical_state DISABLED
caps: <CM, IP_BASED_GIDS>
5/1: mlx5_4/1: subnet_prefix fe80:0000:0000:0000 lid 13403 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
caps: <AUTO_MIGR>
### All links for specific device
$ rdma link show mlx5_3
1/1: mlx5_0/1: subnet_prefix fe80:0000:0000:0000 lid 13399 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
### Detailed link properties for specific device
$ rdma link -d show mlx5_3
1/1: mlx5_0/1: subnet_prefix fe80:0000:0000:0000 lid 13399 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
caps: <AUTO_MIGR>
### Specific port for specific device
$ rdma link show mlx5_4/1
1/1: mlx5_0/1: subnet_prefix fe80:0000:0000:0000 lid 13399 sm_lid 49151 lmc 0 state ACTIVE physical_state LINK_UP
### Unknown parameter
$ rdma link show mlx5_4/1 caps
Unknown parameter 'caps'.
Thanks
Changelog
v1->v2:
* Squashed multiple (and similar) patches to be one patch for dev object
and one patch for link object.
* Removed port_map struct
* Removed global netlink dump during initialization, it removed the need to store
the intermediate variables and reuse ability of netlink to signal if variable
exists or doesn't.
* Added "-d" --details option and put all CAPs under it.
v0->v1:
* Moved hunk with changes in man/Makefile from first patch to the last patch
* Removed the "unknown command" from the examples in commit messages
* Removed special "caps" parsing command and put it to be part of general "show" command
* Changed parsed capability format to be similar to iproute2 suite
* Added FW version as an output of show command.
* Added forgotten CAP_FLAGS to the nla_policy list
RFC->v0:
* Removed everything that is not implemented yet.
* Abandoned sysfs interfaces in favor of netlink.
Available in the "topic/rdmatool-netlink-v2" topic branch of this git repo:
git://git.kernel.org/pub/scm/linux/kernel/git/leon/iproute2.git
Or for browsing:
https://git.kernel.org/cgit/linux/kernel/git/leon/iproute2.git/log/?h=topic/rdmatool-netlink-v2
Thanks
[1] https://www.spinics.net/lists/linux-rdma/msg49575.html
[2] https://patchwork.kernel.org/patch/9752865/
[3] https://www.spinics.net/lists/linux-rdma/msg50827.html
[4] https://www.spinics.net/lists/linux-rdma/msg51210.html
[5] https://patchwork.kernel.org/patch/9811729/ and https://patchwork.kernel.org/patch/9811731/]
Cc: Doug Ledford <dledford@xxxxxxxxxx>
Cc: Ariel Almog <ariela@xxxxxxxxxxxx>
Cc: Linux RDMA <linux-rdma@xxxxxxxxxxxxxxx>
Cc: Linux Netdev <netdev@xxxxxxxxxxxxxxx>
Leon Romanovsky (4):
rdma: Add basic infrastructure for RDMA tool
rdma: Add dev object
rdma: Add link object
rdma: Add initial manual for the tool
Makefile | 2 +-
man/man8/Makefile | 3 +-
man/man8/rdma.8 | 82 ++++++++++++++++
rdma/.gitignore | 1 +
rdma/Makefile | 22 +++++
rdma/dev.c | 235 +++++++++++++++++++++++++++++++++++++++++++++
rdma/link.c | 280 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
rdma/rdma.c | 118 +++++++++++++++++++++++
rdma/rdma.h | 81 ++++++++++++++++
rdma/utils.c | 279 +++++++++++++++++++++++++++++++++++++++++++++++++++++
10 files changed, 1101 insertions(+), 2 deletions(-)
create mode 100644 man/man8/rdma.8
create mode 100644 rdma/.gitignore
create mode 100644 rdma/Makefile
create mode 100644 rdma/dev.c
create mode 100644 rdma/link.c
create mode 100644 rdma/rdma.c
create mode 100644 rdma/rdma.h
create mode 100644 rdma/utils.c
--
2.13.2
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