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mlxsw: reg: Add QoS Switch Traffic Class Table register

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As part of DCB ops we'll have to configure the priority to traffic class
mapping of a port.

Add the QoS Switch Traffic Class Table (QTCT) register, which configures
the mapping between the packet switch priority and traffic class on the
transmit port.

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 17:10:07 +02:00 committed by David S. Miller
parent b9b7cee405
commit 2c63a555e8
1 changed files with 55 additions and 0 deletions
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55
drivers/net/ethernet/mellanox/mlxsw/reg.h
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@ -1805,6 +1805,59 @@ static inline void mlxsw_reg_spvmlr_pack(char *payload, u8 local_port,
}
}
/* QTCT - QoS Switch Traffic Class Table
* -------------------------------------
* Configures the mapping between the packet switch priority and the
* traffic class on the transmit port.
*/
#define MLXSW_REG_QTCT_ID 0x400A
#define MLXSW_REG_QTCT_LEN 0x08
static const struct mlxsw_reg_info mlxsw_reg_qtct = {
.id = MLXSW_REG_QTCT_ID,
.len = MLXSW_REG_QTCT_LEN,
};
/* reg_qtct_local_port
* Local port number.
* Access: Index
*
* Note: CPU port is not supported.
*/
MLXSW_ITEM32(reg, qtct, local_port, 0x00, 16, 8);
/* reg_qtct_sub_port
* Virtual port within the physical port.
* Should be set to 0 when virtual ports are not enabled on the port.
* Access: Index
*/
MLXSW_ITEM32(reg, qtct, sub_port, 0x00, 8, 8);
/* reg_qtct_switch_prio
* Switch priority.
* Access: Index
*/
MLXSW_ITEM32(reg, qtct, switch_prio, 0x00, 0, 4);
/* reg_qtct_tclass
* Traffic class.
* Default values:
* switch_prio 0 : tclass 1
* switch_prio 1 : tclass 0
* switch_prio i : tclass i, for i > 1
* Access: RW
*/
MLXSW_ITEM32(reg, qtct, tclass, 0x04, 0, 4);
static inline void mlxsw_reg_qtct_pack(char *payload, u8 local_port,
u8 switch_prio, u8 tclass)
{
MLXSW_REG_ZERO(qtct, payload);
mlxsw_reg_qtct_local_port_set(payload, local_port);
mlxsw_reg_qtct_switch_prio_set(payload, switch_prio);
mlxsw_reg_qtct_tclass_set(payload, tclass);
}
/* QEEC - QoS ETS Element Configuration Register
* ---------------------------------------------
* Configures the ETS elements.
@ -3491,6 +3544,8 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
return "SFMR";
case MLXSW_REG_SPVMLR_ID:
return "SPVMLR";
case MLXSW_REG_QTCT_ID:
return "QTCT";
case MLXSW_REG_QEEC_ID:
return "QEEC";
case MLXSW_REG_PMLP_ID: