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mlxsw: spectrum: Introduce resource for getting offset of 4 lanes split port

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In Spectrum-3 the modules have 8 lanes, so split by count 2 results in
two split ports each of 4 lanes. Add a resource that can be used to
obtain local port offset in that case.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-10-31 11:42:16 +02:00 committed by David S. Miller
parent d0846ce9aa
commit 038784a9df
2 changed files with 4 additions and 0 deletions
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2
drivers/net/ethernet/mellanox/mlxsw/resources.h
View File

@ -26,6 +26,7 @@ enum mlxsw_res_id {
MLXSW_RES_ID_MAX_LAG_MEMBERS,
MLXSW_RES_ID_LOCAL_PORTS_IN_1X,
MLXSW_RES_ID_LOCAL_PORTS_IN_2X,
MLXSW_RES_ID_LOCAL_PORTS_IN_4X,
MLXSW_RES_ID_GUARANTEED_SHARED_BUFFER,
MLXSW_RES_ID_CELL_SIZE,
MLXSW_RES_ID_MAX_HEADROOM_SIZE,
@ -82,6 +83,7 @@ static u16 mlxsw_res_ids[] = {
[MLXSW_RES_ID_MAX_LAG_MEMBERS] = 0x2521,
[MLXSW_RES_ID_LOCAL_PORTS_IN_1X] = 0x2610,
[MLXSW_RES_ID_LOCAL_PORTS_IN_2X] = 0x2611,
[MLXSW_RES_ID_LOCAL_PORTS_IN_4X] = 0x2612,
[MLXSW_RES_ID_GUARANTEED_SHARED_BUFFER] = 0x2805, /* Bytes */
[MLXSW_RES_ID_CELL_SIZE] = 0x2803, /* Bytes */
[MLXSW_RES_ID_MAX_HEADROOM_SIZE] = 0x2811, /* Bytes */

2
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -4165,6 +4165,8 @@ static int mlxsw_sp_local_ports_offset(struct mlxsw_core *mlxsw_core,
local_ports_in_x_res_id = MLXSW_RES_ID_LOCAL_PORTS_IN_1X;
else if (split_width == 2)
local_ports_in_x_res_id = MLXSW_RES_ID_LOCAL_PORTS_IN_2X;
else if (split_width == 4)
local_ports_in_x_res_id = MLXSW_RES_ID_LOCAL_PORTS_IN_4X;
else
return -EINVAL;