From e5e5c88a1f29096f8a6768975d3f987f7eb59d67 Mon Sep 17 00:00:00 2001 From: Yotam Gigi Date: Tue, 23 May 2017 21:56:27 +0200 Subject: [PATCH] mlxsw: spectrum: Add the needed callbacks for mlxfw integration The mlxfw module defines several needed callbacks in order to flash the device's firmware. As the mlxfw module is shared between several different drivers, those callbacks are the glue functionality that is responsible for hardware interaction. Add those callbacks using the MCQI, MCC, MCDA registers. Signed-off-by: Yotam Gigi Reviewed-by: Ido Schimmel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlxsw/spectrum.c | 166 ++++++++++++++++++ 1 file changed, 166 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 8a165bbfcedc..b533a53090f2 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -68,6 +68,7 @@ #include "txheader.h" #include "spectrum_cnt.h" #include "spectrum_dpipe.h" +#include "../mlxfw/mlxfw.h" static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum"; static const char mlxsw_sp_driver_version[] = "1.0"; @@ -140,6 +141,171 @@ MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16); */ MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); +struct mlxsw_sp_mlxfw_dev { + struct mlxfw_dev mlxfw_dev; + struct mlxsw_sp *mlxsw_sp; +}; + +static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev, + u16 component_index, u32 *p_max_size, + u8 *p_align_bits, u16 *p_max_write_size) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcqi_pl[MLXSW_REG_MCQI_LEN]; + int err; + + mlxsw_reg_mcqi_pack(mcqi_pl, component_index); + err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcqi), mcqi_pl); + if (err) + return err; + mlxsw_reg_mcqi_unpack(mcqi_pl, p_max_size, p_align_bits, + p_max_write_size); + + *p_align_bits = max_t(u8, *p_align_bits, 2); + *p_max_write_size = min_t(u16, *p_max_write_size, + MLXSW_REG_MCDA_MAX_DATA_LEN); + return 0; +} + +static int mlxsw_sp_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + u8 control_state; + int err; + + mlxsw_reg_mcc_pack(mcc_pl, 0, 0, 0, 0); + err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); + if (err) + return err; + + mlxsw_reg_mcc_unpack(mcc_pl, fwhandle, NULL, &control_state); + if (control_state != MLXFW_FSM_STATE_IDLE) + return -EBUSY; + + mlxsw_reg_mcc_pack(mcc_pl, + MLXSW_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE, + 0, *fwhandle, 0); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); +} + +static int mlxsw_sp_fsm_component_update(struct mlxfw_dev *mlxfw_dev, + u32 fwhandle, u16 component_index, + u32 component_size) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + + mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_UPDATE_COMPONENT, + component_index, fwhandle, component_size); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); +} + +static int mlxsw_sp_fsm_block_download(struct mlxfw_dev *mlxfw_dev, + u32 fwhandle, u8 *data, u16 size, + u32 offset) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcda_pl[MLXSW_REG_MCDA_LEN]; + + mlxsw_reg_mcda_pack(mcda_pl, fwhandle, offset, size, data); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcda), mcda_pl); +} + +static int mlxsw_sp_fsm_component_verify(struct mlxfw_dev *mlxfw_dev, + u32 fwhandle, u16 component_index) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + + mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_VERIFY_COMPONENT, + component_index, fwhandle, 0); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); +} + +static int mlxsw_sp_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + + mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_ACTIVATE, 0, + fwhandle, 0); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); +} + +static int mlxsw_sp_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle, + enum mlxfw_fsm_state *fsm_state, + enum mlxfw_fsm_state_err *fsm_state_err) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + u8 control_state; + u8 error_code; + int err; + + mlxsw_reg_mcc_pack(mcc_pl, 0, 0, fwhandle, 0); + err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); + if (err) + return err; + + mlxsw_reg_mcc_unpack(mcc_pl, NULL, &error_code, &control_state); + *fsm_state = control_state; + *fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code, + MLXFW_FSM_STATE_ERR_MAX); + return 0; +} + +static void mlxsw_sp_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + + mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_CANCEL, 0, + fwhandle, 0); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); +} + +static void mlxsw_sp_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) +{ + struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = + container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; + char mcc_pl[MLXSW_REG_MCC_LEN]; + + mlxsw_reg_mcc_pack(mcc_pl, + MLXSW_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0, + fwhandle, 0); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); +} + +static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = { + .component_query = mlxsw_sp_component_query, + .fsm_lock = mlxsw_sp_fsm_lock, + .fsm_component_update = mlxsw_sp_fsm_component_update, + .fsm_block_download = mlxsw_sp_fsm_block_download, + .fsm_component_verify = mlxsw_sp_fsm_component_verify, + .fsm_activate = mlxsw_sp_fsm_activate, + .fsm_query_state = mlxsw_sp_fsm_query_state, + .fsm_cancel = mlxsw_sp_fsm_cancel, + .fsm_release = mlxsw_sp_fsm_release +}; + int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp, unsigned int counter_index, u64 *packets, u64 *bytes) -- 2.20.1