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mlxsw: reg: Add link aggregation configuration registers definitions
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Add definitions of SLDR, SLCR2, SLCOR registers that are used to
configure LAG.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Pirko authored and David S. Miller committed Dec 3, 2015
1 parent d2292e8 commit d1d40be
Showing 1 changed file with 293 additions and 0 deletions.
293 changes: 293 additions & 0 deletions drivers/net/ethernet/mellanox/mlxsw/reg.h
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Original file line number Diff line number Diff line change
Expand Up @@ -865,6 +865,293 @@ static inline void mlxsw_reg_sftr_pack(char *payload,
mlxsw_reg_sftr_port_mask_set(payload, port, 1);
}

/* SLDR - Switch LAG Descriptor Register
* -----------------------------------------
* The switch LAG descriptor register is populated by LAG descriptors.
* Each LAG descriptor is indexed by lag_id. The LAG ID runs from 0 to
* max_lag-1.
*/
#define MLXSW_REG_SLDR_ID 0x2014
#define MLXSW_REG_SLDR_LEN 0x0C /* counting in only one port in list */

static const struct mlxsw_reg_info mlxsw_reg_sldr = {
.id = MLXSW_REG_SLDR_ID,
.len = MLXSW_REG_SLDR_LEN,
};

enum mlxsw_reg_sldr_op {
/* Indicates a creation of a new LAG-ID, lag_id must be valid */
MLXSW_REG_SLDR_OP_LAG_CREATE,
MLXSW_REG_SLDR_OP_LAG_DESTROY,
/* Ports that appear in the list have the Distributor enabled */
MLXSW_REG_SLDR_OP_LAG_ADD_PORT_LIST,
/* Removes ports from the disributor list */
MLXSW_REG_SLDR_OP_LAG_REMOVE_PORT_LIST,
};

/* reg_sldr_op
* Operation.
* Access: RW
*/
MLXSW_ITEM32(reg, sldr, op, 0x00, 29, 3);

/* reg_sldr_lag_id
* LAG identifier. The lag_id is the index into the LAG descriptor table.
* Access: Index
*/
MLXSW_ITEM32(reg, sldr, lag_id, 0x00, 0, 10);

static inline void mlxsw_reg_sldr_lag_create_pack(char *payload, u8 lag_id)
{
MLXSW_REG_ZERO(sldr, payload);
mlxsw_reg_sldr_op_set(payload, MLXSW_REG_SLDR_OP_LAG_CREATE);
mlxsw_reg_sldr_lag_id_set(payload, lag_id);
}

static inline void mlxsw_reg_sldr_lag_destroy_pack(char *payload, u8 lag_id)
{
MLXSW_REG_ZERO(sldr, payload);
mlxsw_reg_sldr_op_set(payload, MLXSW_REG_SLDR_OP_LAG_DESTROY);
mlxsw_reg_sldr_lag_id_set(payload, lag_id);
}

/* reg_sldr_num_ports
* The number of member ports of the LAG.
* Reserved for Create / Destroy operations
* For Add / Remove operations - indicates the number of ports in the list.
* Access: RW
*/
MLXSW_ITEM32(reg, sldr, num_ports, 0x04, 24, 8);

/* reg_sldr_system_port
* System port.
* Access: RW
*/
MLXSW_ITEM32_INDEXED(reg, sldr, system_port, 0x08, 0, 16, 4, 0, false);

static inline void mlxsw_reg_sldr_lag_add_port_pack(char *payload, u8 lag_id,
u8 local_port)
{
MLXSW_REG_ZERO(sldr, payload);
mlxsw_reg_sldr_op_set(payload, MLXSW_REG_SLDR_OP_LAG_ADD_PORT_LIST);
mlxsw_reg_sldr_lag_id_set(payload, lag_id);
mlxsw_reg_sldr_num_ports_set(payload, 1);
mlxsw_reg_sldr_system_port_set(payload, 0, local_port);
}

static inline void mlxsw_reg_sldr_lag_remove_port_pack(char *payload, u8 lag_id,
u8 local_port)
{
MLXSW_REG_ZERO(sldr, payload);
mlxsw_reg_sldr_op_set(payload, MLXSW_REG_SLDR_OP_LAG_REMOVE_PORT_LIST);
mlxsw_reg_sldr_lag_id_set(payload, lag_id);
mlxsw_reg_sldr_num_ports_set(payload, 1);
mlxsw_reg_sldr_system_port_set(payload, 0, local_port);
}

/* SLCR - Switch LAG Configuration 2 Register
* -------------------------------------------
* The Switch LAG Configuration register is used for configuring the
* LAG properties of the switch.
*/
#define MLXSW_REG_SLCR_ID 0x2015
#define MLXSW_REG_SLCR_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_slcr = {
.id = MLXSW_REG_SLCR_ID,
.len = MLXSW_REG_SLCR_LEN,
};

enum mlxsw_reg_slcr_pp {
/* Global Configuration (for all ports) */
MLXSW_REG_SLCR_PP_GLOBAL,
/* Per port configuration, based on local_port field */
MLXSW_REG_SLCR_PP_PER_PORT,
};

/* reg_slcr_pp
* Per Port Configuration
* Note: Reading at Global mode results in reading port 1 configuration.
* Access: Index
*/
MLXSW_ITEM32(reg, slcr, pp, 0x00, 24, 1);

/* reg_slcr_local_port
* Local port number
* Supported from CPU port
* Not supported from router port
* Reserved when pp = Global Configuration
* Access: Index
*/
MLXSW_ITEM32(reg, slcr, local_port, 0x00, 16, 8);

enum mlxsw_reg_slcr_type {
MLXSW_REG_SLCR_TYPE_CRC, /* default */
MLXSW_REG_SLCR_TYPE_XOR,
MLXSW_REG_SLCR_TYPE_RANDOM,
};

/* reg_slcr_type
* Hash type
* Access: RW
*/
MLXSW_ITEM32(reg, slcr, type, 0x00, 0, 4);

/* Ingress port */
#define MLXSW_REG_SLCR_LAG_HASH_IN_PORT BIT(0)
/* SMAC - for IPv4 and IPv6 packets */
#define MLXSW_REG_SLCR_LAG_HASH_SMAC_IP BIT(1)
/* SMAC - for non-IP packets */
#define MLXSW_REG_SLCR_LAG_HASH_SMAC_NONIP BIT(2)
#define MLXSW_REG_SLCR_LAG_HASH_SMAC \
(MLXSW_REG_SLCR_LAG_HASH_SMAC_IP | \
MLXSW_REG_SLCR_LAG_HASH_SMAC_NONIP)
/* DMAC - for IPv4 and IPv6 packets */
#define MLXSW_REG_SLCR_LAG_HASH_DMAC_IP BIT(3)
/* DMAC - for non-IP packets */
#define MLXSW_REG_SLCR_LAG_HASH_DMAC_NONIP BIT(4)
#define MLXSW_REG_SLCR_LAG_HASH_DMAC \
(MLXSW_REG_SLCR_LAG_HASH_DMAC_IP | \
MLXSW_REG_SLCR_LAG_HASH_DMAC_NONIP)
/* Ethertype - for IPv4 and IPv6 packets */
#define MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE_IP BIT(5)
/* Ethertype - for non-IP packets */
#define MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE_NONIP BIT(6)
#define MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE \
(MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE_IP | \
MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE_NONIP)
/* VLAN ID - for IPv4 and IPv6 packets */
#define MLXSW_REG_SLCR_LAG_HASH_VLANID_IP BIT(7)
/* VLAN ID - for non-IP packets */
#define MLXSW_REG_SLCR_LAG_HASH_VLANID_NONIP BIT(8)
#define MLXSW_REG_SLCR_LAG_HASH_VLANID \
(MLXSW_REG_SLCR_LAG_HASH_VLANID_IP | \
MLXSW_REG_SLCR_LAG_HASH_VLANID_NONIP)
/* Source IP address (can be IPv4 or IPv6) */
#define MLXSW_REG_SLCR_LAG_HASH_SIP BIT(9)
/* Destination IP address (can be IPv4 or IPv6) */
#define MLXSW_REG_SLCR_LAG_HASH_DIP BIT(10)
/* TCP/UDP source port */
#define MLXSW_REG_SLCR_LAG_HASH_SPORT BIT(11)
/* TCP/UDP destination port*/
#define MLXSW_REG_SLCR_LAG_HASH_DPORT BIT(12)
/* IPv4 Protocol/IPv6 Next Header */
#define MLXSW_REG_SLCR_LAG_HASH_IPPROTO BIT(13)
/* IPv6 Flow label */
#define MLXSW_REG_SLCR_LAG_HASH_FLOWLABEL BIT(14)
/* SID - FCoE source ID */
#define MLXSW_REG_SLCR_LAG_HASH_FCOE_SID BIT(15)
/* DID - FCoE destination ID */
#define MLXSW_REG_SLCR_LAG_HASH_FCOE_DID BIT(16)
/* OXID - FCoE originator exchange ID */
#define MLXSW_REG_SLCR_LAG_HASH_FCOE_OXID BIT(17)
/* Destination QP number - for RoCE packets */
#define MLXSW_REG_SLCR_LAG_HASH_ROCE_DQP BIT(19)

/* reg_slcr_lag_hash
* LAG hashing configuration. This is a bitmask, in which each set
* bit includes the corresponding item in the LAG hash calculation.
* The default lag_hash contains SMAC, DMAC, VLANID and
* Ethertype (for all packet types).
* Access: RW
*/
MLXSW_ITEM32(reg, slcr, lag_hash, 0x04, 0, 20);

static inline void mlxsw_reg_slcr_pack(char *payload, u16 lag_hash)
{
MLXSW_REG_ZERO(slcr, payload);
mlxsw_reg_slcr_pp_set(payload, MLXSW_REG_SLCR_PP_GLOBAL);
mlxsw_reg_slcr_type_set(payload, MLXSW_REG_SLCR_TYPE_XOR);
mlxsw_reg_slcr_lag_hash_set(payload, lag_hash);
}

/* SLCOR - Switch LAG Collector Register
* -------------------------------------
* The Switch LAG Collector register controls the Local Port membership
* in a LAG and enablement of the collector.
*/
#define MLXSW_REG_SLCOR_ID 0x2016
#define MLXSW_REG_SLCOR_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_slcor = {
.id = MLXSW_REG_SLCOR_ID,
.len = MLXSW_REG_SLCOR_LEN,
};

enum mlxsw_reg_slcor_col {
/* Port is added with collector disabled */
MLXSW_REG_SLCOR_COL_LAG_ADD_PORT,
MLXSW_REG_SLCOR_COL_LAG_COLLECTOR_ENABLED,
MLXSW_REG_SLCOR_COL_LAG_COLLECTOR_DISABLED,
MLXSW_REG_SLCOR_COL_LAG_REMOVE_PORT,
};

/* reg_slcor_col
* Collector configuration
* Access: RW
*/
MLXSW_ITEM32(reg, slcor, col, 0x00, 30, 2);

/* reg_slcor_local_port
* Local port number
* Not supported for CPU port
* Access: Index
*/
MLXSW_ITEM32(reg, slcor, local_port, 0x00, 16, 8);

/* reg_slcor_lag_id
* LAG Identifier. Index into the LAG descriptor table.
* Access: Index
*/
MLXSW_ITEM32(reg, slcor, lag_id, 0x00, 0, 10);

/* reg_slcor_port_index
* Port index in the LAG list. Only valid on Add Port to LAG col.
* Valid range is from 0 to cap_max_lag_members-1
* Access: RW
*/
MLXSW_ITEM32(reg, slcor, port_index, 0x04, 0, 10);

static inline void mlxsw_reg_slcor_pack(char *payload,
u8 local_port, u16 lag_id,
enum mlxsw_reg_slcor_col col)
{
MLXSW_REG_ZERO(slcor, payload);
mlxsw_reg_slcor_col_set(payload, col);
mlxsw_reg_slcor_local_port_set(payload, local_port);
mlxsw_reg_slcor_lag_id_set(payload, lag_id);
}

static inline void mlxsw_reg_slcor_port_add_pack(char *payload,
u8 local_port, u16 lag_id,
u8 port_index)
{
mlxsw_reg_slcor_pack(payload, local_port, lag_id,
MLXSW_REG_SLCOR_COL_LAG_ADD_PORT);
mlxsw_reg_slcor_port_index_set(payload, port_index);
}

static inline void mlxsw_reg_slcor_port_remove_pack(char *payload,
u8 local_port, u16 lag_id)
{
mlxsw_reg_slcor_pack(payload, local_port, lag_id,
MLXSW_REG_SLCOR_COL_LAG_REMOVE_PORT);
}

static inline void mlxsw_reg_slcor_col_enable_pack(char *payload,
u8 local_port, u16 lag_id)
{
mlxsw_reg_slcor_pack(payload, local_port, lag_id,
MLXSW_REG_SLCOR_COL_LAG_COLLECTOR_ENABLED);
}

static inline void mlxsw_reg_slcor_col_disable_pack(char *payload,
u8 local_port, u16 lag_id)
{
mlxsw_reg_slcor_pack(payload, local_port, lag_id,
MLXSW_REG_SLCOR_COL_LAG_COLLECTOR_ENABLED);
}

/* SPMLR - Switch Port MAC Learning Register
* -----------------------------------------
* Controls the Switch MAC learning policy per port.
Expand Down Expand Up @@ -2653,6 +2940,12 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
return "SFGC";
case MLXSW_REG_SFTR_ID:
return "SFTR";
case MLXSW_REG_SLDR_ID:
return "SLDR";
case MLXSW_REG_SLCR_ID:
return "SLCR";
case MLXSW_REG_SLCOR_ID:
return "SLCOR";
case MLXSW_REG_SPMLR_ID:
return "SPMLR";
case MLXSW_REG_SVFA_ID:
Expand Down

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