devlink: implement shared buffer occupancy monitoring interface
User needs to monitor shared buffer occupancy. For that, he issues a
snapshot command in order to instruct hardware to catch current and
maximal occupancy values, and clear command in order to clear the
historical maximal values.
Also port-pool and tc-pool-bind command response messages are extended to
carry occupancy values.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/devlink.h b/include/net/devlink.h
index e4c2747..be64218 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -78,6 +78,18 @@
u16 tc_index,
enum devlink_sb_pool_type pool_type,
u16 pool_index, u32 threshold);
+ int (*sb_occ_snapshot)(struct devlink *devlink,
+ unsigned int sb_index);
+ int (*sb_occ_max_clear)(struct devlink *devlink,
+ unsigned int sb_index);
+ int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
+ unsigned int sb_index, u16 pool_index,
+ u32 *p_cur, u32 *p_max);
+ int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
+ unsigned int sb_index,
+ u16 tc_index,
+ enum devlink_sb_pool_type pool_type,
+ u32 *p_cur, u32 *p_max);
};
static inline void *devlink_priv(struct devlink *devlink)