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devlink: add support to create line card and expose to user

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Extend the devlink API so the driver is going to be able to create and
destroy linecard instances. There can be multiple line cards per devlink
device. Expose this new type of object over devlink netlink API to the
userspace, with notifications.

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
2022-04-18 09:42:25 +03:00
committed by David S. Miller
parent 843f77407e
commit c246f9b5fd
3 changed files with 280 additions and 1 deletions
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7
include/uapi/linux/devlink.h
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@@ -131,6 +131,11 @@ enum devlink_command {
DEVLINK_CMD_RATE_NEW,
DEVLINK_CMD_RATE_DEL,
DEVLINK_CMD_LINECARD_GET, /* can dump */
DEVLINK_CMD_LINECARD_SET,
DEVLINK_CMD_LINECARD_NEW,
DEVLINK_CMD_LINECARD_DEL,
/* add new commands above here */
__DEVLINK_CMD_MAX,
DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
@@ -553,6 +558,8 @@ enum devlink_attr {
DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, /* u32 */
DEVLINK_ATTR_LINECARD_INDEX, /* u32 */
/* add new attributes above here, update the policy in devlink.c */
__DEVLINK_ATTR_MAX,