Commit 33a704a5 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
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mlxsw: Remove multicast ID configuration

With respect to a firmware change, the Switch Multicast ID (SMID)
register is no longer needed, so the related configuration code can be

Signed-off-by: default avatarIdo Schimmel <>
Signed-off-by: default avatarJiri Pirko <>
Signed-off-by: default avatarDavid S. Miller <>
parent 96aec911
......@@ -99,57 +99,6 @@ static const struct mlxsw_reg_info mlxsw_reg_spad = {
MLXSW_ITEM_BUF(reg, spad, base_mac, 0x02, 6);
/* SMID - Switch Multicast ID
* --------------------------
* In multi-chip configuration, each device should maintain mapping between
* Multicast ID (MID) into a list of local ports. This mapping is used in all
* the devices other than the ingress device, and is implemented as part of the
* FDB. The MID record maps from a MID, which is a unique identi- fier of the
* multicast group within the stacking domain, into a list of local ports into
* which the packet is replicated.
#define MLXSW_REG_SMID_ID 0x2007
#define MLXSW_REG_SMID_LEN 0x420
static const struct mlxsw_reg_info mlxsw_reg_smid = {
/* reg_smid_swid
* Switch partition ID.
* Access: Index
MLXSW_ITEM32(reg, smid, swid, 0x00, 24, 8);
/* reg_smid_mid
* Multicast identifier - global identifier that represents the multicast group
* across all devices
* Access: Index
MLXSW_ITEM32(reg, smid, mid, 0x00, 0, 16);
/* reg_smid_port
* Local port memebership (1 bit per port).
* Access: RW
MLXSW_ITEM_BIT_ARRAY(reg, smid, port, 0x20, 0x20, 1);
/* reg_smid_port_mask
* Local port mask (1 bit per port).
* Access: W
MLXSW_ITEM_BIT_ARRAY(reg, smid, port_mask, 0x220, 0x20, 1);
static inline void mlxsw_reg_smid_pack(char *payload, u16 mid)
MLXSW_REG_ZERO(smid, payload);
mlxsw_reg_smid_swid_set(payload, 0);
mlxsw_reg_smid_mid_set(payload, mid);
mlxsw_reg_smid_port_set(payload, MLXSW_PORT_CPU_PORT, 1);
mlxsw_reg_smid_port_mask_set(payload, MLXSW_PORT_CPU_PORT, 1);
/* SSPR - Switch System Port Record Register
* -----------------------------------------
* Configures the system port to local port mapping.
......@@ -1272,8 +1221,6 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
return "SGCR";
return "SPAD";
return "SMID";
return "SSPR";
......@@ -1371,20 +1371,9 @@ static int mlxsw_sx_flood_init(struct mlxsw_sx *mlxsw_sx)
char sfgc_pl[MLXSW_REG_SFGC_LEN];
char sgcr_pl[MLXSW_REG_SGCR_LEN];
char *smid_pl;
char *sftr_pl;
int err;
/* Due to FW bug, we must configure SMID. */
smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
if (!smid_pl)
return -ENOMEM;
mlxsw_reg_smid_pack(smid_pl, MLXSW_PORT_MID);
err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(smid), smid_pl);
if (err)
return err;
/* Configure a flooding table, which includes only CPU port. */
sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
if (!sftr_pl)
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