diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index f687d1f6b765..298e654583bd 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -1293,6 +1293,64 @@ const struct ice_ctx_ele ice_tlan_ctx_info[] = { { 0 } }; +/* Sideband Queue command wrappers */ + +/** + * ice_sbq_send_cmd - send Sideband Queue command to Sideband Queue + * @hw: pointer to the HW struct + * @desc: descriptor describing the command + * @buf: buffer to use for indirect commands (NULL for direct commands) + * @buf_size: size of buffer for indirect commands (0 for direct commands) + * @cd: pointer to command details structure + */ +static int +ice_sbq_send_cmd(struct ice_hw *hw, struct ice_sbq_cmd_desc *desc, + void *buf, u16 buf_size, struct ice_sq_cd *cd) +{ + return ice_status_to_errno(ice_sq_send_cmd(hw, ice_get_sbq(hw), + (struct ice_aq_desc *)desc, + buf, buf_size, cd)); +} + +/** + * ice_sbq_rw_reg - Fill Sideband Queue command + * @hw: pointer to the HW struct + * @in: message info to be filled in descriptor + */ +int ice_sbq_rw_reg(struct ice_hw *hw, struct ice_sbq_msg_input *in) +{ + struct ice_sbq_cmd_desc desc = {0}; + struct ice_sbq_msg_req msg = {0}; + u16 msg_len; + int status; + + msg_len = sizeof(msg); + + msg.dest_dev = in->dest_dev; + msg.opcode = in->opcode; + msg.flags = ICE_SBQ_MSG_FLAGS; + msg.sbe_fbe = ICE_SBQ_MSG_SBE_FBE; + msg.msg_addr_low = cpu_to_le16(in->msg_addr_low); + msg.msg_addr_high = cpu_to_le32(in->msg_addr_high); + + if (in->opcode) + msg.data = cpu_to_le32(in->data); + else + /* data read comes back in completion, so shorten the struct by + * sizeof(msg.data) + */ + msg_len -= sizeof(msg.data); + + desc.flags = cpu_to_le16(ICE_AQ_FLAG_RD); + desc.opcode = cpu_to_le16(ice_sbq_opc_neigh_dev_req); + desc.param0.cmd_len = cpu_to_le16(msg_len); + status = ice_sbq_send_cmd(hw, &desc, &msg, msg_len, NULL); + if (!status && !in->opcode) + in->data = le32_to_cpu + (((struct ice_sbq_msg_cmpl *)&msg)->data); + return status; +} + /* FW Admin Queue command wrappers */ /* Software lock/mutex that is meant to be held while the Global Config Lock |