Commit 038784a9 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

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



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: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d0846ce9

drivers/net/ethernet/mellanox/mlxsw/resources.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

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