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devlink: add trap metadata type for cookie 

Allow driver to indicate cookie metadata for registered traps.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2020-02-25 11:45:19 +01:00 committed by David S. Miller
parent 2008495d81
commit 85b0589ede
3 changed files with 6 additions and 0 deletions
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1
include/net/devlink.h
View File

@ -541,6 +541,7 @@ struct devlink_trap_group {
};
#define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT BIT(0)
#define DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE BIT(1)
/**
* struct devlink_trap - Immutable packet trap attributes.

2
include/uapi/linux/devlink.h
View File

@ -252,6 +252,8 @@ enum devlink_trap_type {
enum {
/* Trap can report input port as metadata */
DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT,
/* Trap can report flow action cookie as metadata */
DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE,
};
enum devlink_attr {

3
net/core/devlink.c
View File

@ -5540,6 +5540,9 @@ static int devlink_trap_metadata_put(struct sk_buff *msg,
if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) &&
nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT))
goto nla_put_failure;
if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) &&
nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE))
goto nla_put_failure;
nla_nest_end(msg, attr);