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| author | Parav Pandit <parav@nvidia.com> | 2021-02-03 05:59:32 +0100 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-04-03 01:13:07 +0200 |
| commit | b47e1056257cdeae9cbe55926c13a98519f950b1 (patch) | |
| tree | c4da79fd710b968758341f8025af3c891e6bd516 /drivers | |
| parent | net/mlx5: Pair mutex_destory with mutex_init for rate limit table (diff) | |
| download | linux-b47e1056257cdeae9cbe55926c13a98519f950b1.tar.xz linux-b47e1056257cdeae9cbe55926c13a98519f950b1.zip | |
net/mlx5: E-Switch, cut down mlx5_vport_info structure size by 8 bytes
Structure mlx5_vport_info consumes 40 bytes of space due to a hole
in it. After packing it reduces to 32 bytes.
Currently:
pahole -C mlx5_vport_info drivers/net/ethernet/mellanox/mlx5/core/eswitch.o
struct mlx5_vport_info {
u8 mac[6]; /* 0 6 */
u16 vlan; /* 6 2 */
u8 qos; /* 8 1 */
/* XXX 7 bytes hole, try to pack */
u64 node_guid; /* 16 8 */
int link_state; /* 24 4 */
u32 min_rate; /* 28 4 */
u32 max_rate; /* 32 4 */
bool spoofchk; /* 36 1 */
bool trusted; /* 37 1 */
/* size: 40, cachelines: 1, members: 9 */
/* sum members: 31, holes: 1, sum holes: 7 */
/* padding: 2 */
/* last cacheline: 40 bytes */
};
After packing:
$ pahole -C mlx5_vport_info drivers/net/ethernet/mellanox/mlx5/core/eswitch.o
struct mlx5_vport_info {
u8 mac[6]; /* 0 6 */
u16 vlan; /* 6 2 */
u64 node_guid; /* 8 8 */
int link_state; /* 16 4 */
u32 min_rate; /* 20 4 */
u32 max_rate; /* 24 4 */
u8 qos; /* 28 1 */
u8 spoofchk:1; /* 29: 0 1 */
u8 trusted:1; /* 29: 1 1 */
/* size: 32, cachelines: 1, members: 9 */
/* padding: 2 */
/* bit_padding: 6 bits */
/* last cacheline: 32 bytes */
};
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index 64db903068c1..5d50b127f81a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -120,6 +120,8 @@ struct mlx5_vport_info { u16 vlan; u64 node_guid; int link_state; + u32 min_rate; + u32 max_rate; u8 qos; u8 spoofchk: 1; u8 trusted: 1; |