From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 31 Oct 2019 11:42:16 +0200
Subject: mlxsw: spectrum: Introduce resource for getting offset of 4 lanes
split port
Patch-mainline: v5.5-rc1
Git-commit: 038784a9dfc2180dde36d34a92cb4427eb1e928f
References: bsc#1154488
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlxsw/resources.h | 2 ++
drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 2 ++
2 files changed, 4 insertions(+)
--- a/drivers/net/ethernet/mellanox/mlxsw/resources.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/resources.h
@@ -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 */
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4165,6 +4165,8 @@ static int mlxsw_sp_local_ports_offset(s
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;