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mlxsw: reg: Introduce per priority counters 

We are going to add support for PFC as part of DCB ops, which requires us
to report the number of PFC frames sent and received per priority.

Add per priority counters in order to report number of PFC frames sent
and received per priority.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2016-04-06 17:10:15 +02:00 committed by David S. Miller
parent 9f7ec052b7
commit 34dba0a59d
3 changed files with 63 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
drivers/net/ethernet/mellanox/mlxsw/reg.h
View File

@ -2487,6 +2487,11 @@ MLXSW_ITEM32(reg, ppcnt, local_port, 0x00, 16, 8);
*/
MLXSW_ITEM32(reg, ppcnt, pnat, 0x00, 14, 2);
enum mlxsw_reg_ppcnt_grp {
MLXSW_REG_PPCNT_IEEE_8023_CNT = 0x0,
MLXSW_REG_PPCNT_PRIO_CNT = 0x10,
};
/* reg_ppcnt_grp
* Performance counter group.
* Group 63 indicates all groups. Only valid on Set() operation with
@ -2522,6 +2527,8 @@ MLXSW_ITEM32(reg, ppcnt, clr, 0x04, 31, 1);
*/
MLXSW_ITEM32(reg, ppcnt, prio_tc, 0x04, 0, 5);
/* Ethernet IEEE 802.3 Counter Group */
/* reg_ppcnt_a_frames_transmitted_ok
* Access: RO
*/
@ -2636,15 +2643,64 @@ MLXSW_ITEM64(reg, ppcnt, a_pause_mac_ctrl_frames_received,
MLXSW_ITEM64(reg, ppcnt, a_pause_mac_ctrl_frames_transmitted,
0x08 + 0x90, 0, 64);
static inline void mlxsw_reg_ppcnt_pack(char *payload, u8 local_port)
/* Ethernet Per Priority Group Counters */
/* reg_ppcnt_rx_octets
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, rx_octets, 0x08 + 0x00, 0, 64);
/* reg_ppcnt_rx_frames
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, rx_frames, 0x08 + 0x20, 0, 64);
/* reg_ppcnt_tx_octets
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, tx_octets, 0x08 + 0x28, 0, 64);
/* reg_ppcnt_tx_frames
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, tx_frames, 0x08 + 0x48, 0, 64);
/* reg_ppcnt_rx_pause
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, rx_pause, 0x08 + 0x50, 0, 64);
/* reg_ppcnt_rx_pause_duration
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, rx_pause_duration, 0x08 + 0x58, 0, 64);
/* reg_ppcnt_tx_pause
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, tx_pause, 0x08 + 0x60, 0, 64);
/* reg_ppcnt_tx_pause_duration
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, tx_pause_duration, 0x08 + 0x68, 0, 64);
/* reg_ppcnt_rx_pause_transition
* Access: RO
*/
MLXSW_ITEM64(reg, ppcnt, tx_pause_transition, 0x08 + 0x70, 0, 64);
static inline void mlxsw_reg_ppcnt_pack(char *payload, u8 local_port,
enum mlxsw_reg_ppcnt_grp grp,
u8 prio_tc)
{
MLXSW_REG_ZERO(ppcnt, payload);
mlxsw_reg_ppcnt_swid_set(payload, 0);
mlxsw_reg_ppcnt_local_port_set(payload, local_port);
mlxsw_reg_ppcnt_pnat_set(payload, 0);
mlxsw_reg_ppcnt_grp_set(payload, 0);
mlxsw_reg_ppcnt_grp_set(payload, grp);
mlxsw_reg_ppcnt_clr_set(payload, 0);
mlxsw_reg_ppcnt_prio_tc_set(payload, 0);
mlxsw_reg_ppcnt_prio_tc_set(payload, prio_tc);
}
/* PPTB - Port Prio To Buffer Register

3
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -1195,7 +1195,8 @@ static void mlxsw_sp_port_get_stats(struct net_device *dev,
int i;
int err;
mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port);
mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port,
MLXSW_REG_PPCNT_IEEE_8023_CNT, 0);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++)
data[i] = !err ? mlxsw_sp_port_hw_stats[i].getter(ppcnt_pl) : 0;

3
drivers/net/ethernet/mellanox/mlxsw/switchx2.c
View File

@ -518,7 +518,8 @@ static void mlxsw_sx_port_get_stats(struct net_device *dev,
int i;
int err;
mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sx_port->local_port);
mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sx_port->local_port,
MLXSW_REG_PPCNT_IEEE_8023_CNT, 0);
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ppcnt), ppcnt_pl);
for (i = 0; i < MLXSW_SX_PORT_HW_STATS_LEN; i++)
data[i] = !err ? mlxsw_sx_port_hw_stats[i].getter(ppcnt_pl) : 0;