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devlink: introduce line card info get message

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Allow the driver to provide per line card info get op to fill-up info,
similar to the "devlink dev info".

Example:

$ devlink lc info pci/0000:01:00.0 lc 8
pci/0000:01:00.0:
  lc 8
    versions:
        fixed:
          hw.revision 0
        running:
          ini.version 4

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2022-04-25 06:44:22 +03:00
committed by David S. Miller
parent 8d92e4fbcf
commit 276910aecc
4 changed files with 138 additions and 5 deletions
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2
include/uapi/linux/devlink.h
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@@ -136,6 +136,8 @@ enum devlink_command {
DEVLINK_CMD_LINECARD_NEW,
DEVLINK_CMD_LINECARD_DEL,
DEVLINK_CMD_LINECARD_INFO_GET, /* can dump */
/* add new commands above here */
__DEVLINK_CMD_MAX,
DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1