diff options
Diffstat (limited to 'drivers/net/ethernet/huawei/hinic/hinic_devlink.c')
-rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_devlink.c | 328 |
1 files changed, 328 insertions, 0 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_devlink.c b/drivers/net/ethernet/huawei/hinic/hinic_devlink.c new file mode 100644 index 000000000000..a40a10ac1ee9 --- /dev/null +++ b/drivers/net/ethernet/huawei/hinic/hinic_devlink.c @@ -0,0 +1,328 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Huawei HiNIC PCI Express Linux driver + * Copyright(c) 2017 Huawei Technologies Co., Ltd + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ +#include <linux/netlink.h> +#include <net/devlink.h> +#include <linux/firmware.h> + +#include "hinic_dev.h" +#include "hinic_port.h" +#include "hinic_devlink.h" + +static bool check_image_valid(struct hinic_devlink_priv *priv, const u8 *buf, + u32 image_size, struct host_image_st *host_image) +{ + struct fw_image_st *fw_image = NULL; + u32 len = 0; + u32 i; + + fw_image = (struct fw_image_st *)buf; + + if (fw_image->fw_magic != HINIC_MAGIC_NUM) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Wrong fw_magic read from file, fw_magic: 0x%x\n", + fw_image->fw_magic); + return false; + } + + if (fw_image->fw_info.fw_section_cnt > MAX_FW_TYPE_NUM) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Wrong fw_type_num read from file, fw_type_num: 0x%x\n", + fw_image->fw_info.fw_section_cnt); + return false; + } + + for (i = 0; i < fw_image->fw_info.fw_section_cnt; i++) { + len += fw_image->fw_section_info[i].fw_section_len; + memcpy(&host_image->image_section_info[i], + &fw_image->fw_section_info[i], + sizeof(struct fw_section_info_st)); + } + + if (len != fw_image->fw_len || + (fw_image->fw_len + UPDATEFW_IMAGE_HEAD_SIZE) != image_size) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Wrong data size read from file\n"); + return false; + } + + host_image->image_info.up_total_len = fw_image->fw_len; + host_image->image_info.fw_version = fw_image->fw_version; + host_image->section_type_num = fw_image->fw_info.fw_section_cnt; + host_image->device_id = fw_image->device_id; + + return true; +} + +static bool check_image_integrity(struct hinic_devlink_priv *priv, + struct host_image_st *host_image, + u32 update_type) +{ + u32 collect_section_type = 0; + u32 i, type; + + for (i = 0; i < host_image->section_type_num; i++) { + type = host_image->image_section_info[i].fw_section_type; + if (collect_section_type & (1U << type)) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Duplicate section type: %u\n", + type); + return false; + } + collect_section_type |= (1U << type); + } + + if (update_type == FW_UPDATE_COLD && + (((collect_section_type & _IMAGE_COLD_SUB_MODULES_MUST_IN) == + _IMAGE_COLD_SUB_MODULES_MUST_IN) || + collect_section_type == _IMAGE_CFG_SUB_MODULES_MUST_IN)) + return true; + + if (update_type == FW_UPDATE_HOT && + (collect_section_type & _IMAGE_HOT_SUB_MODULES_MUST_IN) == + _IMAGE_HOT_SUB_MODULES_MUST_IN) + return true; + + if (update_type == FW_UPDATE_COLD) + dev_err(&priv->hwdev->hwif->pdev->dev, "Check file integrity failed, valid: 0x%x or 0x%lx, current: 0x%x\n", + _IMAGE_COLD_SUB_MODULES_MUST_IN, + _IMAGE_CFG_SUB_MODULES_MUST_IN, collect_section_type); + else + dev_err(&priv->hwdev->hwif->pdev->dev, "Check file integrity failed, valid:0x%x, current: 0x%x\n", + _IMAGE_HOT_SUB_MODULES_MUST_IN, collect_section_type); + + return false; +} + +static int check_image_device_type(struct hinic_devlink_priv *priv, + u32 image_device_type) +{ + struct hinic_comm_board_info board_info = {0}; + + if (hinic_get_board_info(priv->hwdev, &board_info)) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Get board info failed\n"); + return false; + } + + if (image_device_type == board_info.info.board_type) + return true; + + dev_err(&priv->hwdev->hwif->pdev->dev, "The device type of upgrade file doesn't match the device type of current firmware, please check the upgrade file\n"); + dev_err(&priv->hwdev->hwif->pdev->dev, "The image device type: 0x%x, firmware device type: 0x%x\n", + image_device_type, board_info.info.board_type); + + return false; +} + +static int hinic_flash_fw(struct hinic_devlink_priv *priv, const u8 *data, + struct host_image_st *host_image) +{ + u32 section_remain_send_len, send_fragment_len, send_pos, up_total_len; + struct hinic_cmd_update_fw *fw_update_msg = NULL; + u32 section_type, section_crc, section_version; + u32 i, len, section_len, section_offset; + u16 out_size = sizeof(*fw_update_msg); + int total_len_flag = 0; + int err; + + fw_update_msg = kzalloc(sizeof(*fw_update_msg), GFP_KERNEL); + if (!fw_update_msg) + return -ENOMEM; + + up_total_len = host_image->image_info.up_total_len; + + for (i = 0; i < host_image->section_type_num; i++) { + len = host_image->image_section_info[i].fw_section_len; + if (host_image->image_section_info[i].fw_section_type == + UP_FW_UPDATE_BOOT) { + up_total_len = up_total_len - len; + break; + } + } + + for (i = 0; i < host_image->section_type_num; i++) { + section_len = + host_image->image_section_info[i].fw_section_len; + section_offset = + host_image->image_section_info[i].fw_section_offset; + section_remain_send_len = section_len; + section_type = + host_image->image_section_info[i].fw_section_type; + section_crc = host_image->image_section_info[i].fw_section_crc; + section_version = + host_image->image_section_info[i].fw_section_version; + + if (section_type == UP_FW_UPDATE_BOOT) + continue; + + send_fragment_len = 0; + send_pos = 0; + + while (section_remain_send_len > 0) { + if (!total_len_flag) { + fw_update_msg->total_len = up_total_len; + total_len_flag = 1; + } else { + fw_update_msg->total_len = 0; + } + + memset(fw_update_msg->data, 0, MAX_FW_FRAGMENT_LEN); + + fw_update_msg->ctl_info.SF = + (section_remain_send_len == section_len) ? + true : false; + fw_update_msg->section_info.FW_section_CRC = section_crc; + fw_update_msg->fw_section_version = section_version; + fw_update_msg->ctl_info.flag = UP_TYPE_A; + + if (section_type <= UP_FW_UPDATE_UP_DATA_B) { + fw_update_msg->section_info.FW_section_type = + (section_type % 2) ? + UP_FW_UPDATE_UP_DATA : + UP_FW_UPDATE_UP_TEXT; + + fw_update_msg->ctl_info.flag = UP_TYPE_B; + if (section_type <= UP_FW_UPDATE_UP_DATA_A) + fw_update_msg->ctl_info.flag = UP_TYPE_A; + } else { + fw_update_msg->section_info.FW_section_type = + section_type - 0x2; + } + + fw_update_msg->setion_total_len = section_len; + fw_update_msg->section_offset = send_pos; + + if (section_remain_send_len <= MAX_FW_FRAGMENT_LEN) { + fw_update_msg->ctl_info.SL = true; + fw_update_msg->ctl_info.fragment_len = + section_remain_send_len; + send_fragment_len += section_remain_send_len; + } else { + fw_update_msg->ctl_info.SL = false; + fw_update_msg->ctl_info.fragment_len = + MAX_FW_FRAGMENT_LEN; + send_fragment_len += MAX_FW_FRAGMENT_LEN; + } + + memcpy(fw_update_msg->data, + data + UPDATEFW_IMAGE_HEAD_SIZE + + section_offset + send_pos, + fw_update_msg->ctl_info.fragment_len); + + err = hinic_port_msg_cmd(priv->hwdev, + HINIC_PORT_CMD_UPDATE_FW, + fw_update_msg, + sizeof(*fw_update_msg), + fw_update_msg, &out_size); + if (err || !out_size || fw_update_msg->status) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Failed to update firmware, err: %d, status: 0x%x, out size: 0x%x\n", + err, fw_update_msg->status, out_size); + err = fw_update_msg->status ? + fw_update_msg->status : -EIO; + kfree(fw_update_msg); + return err; + } + + send_pos = send_fragment_len; + section_remain_send_len = section_len - + send_fragment_len; + } + } + + kfree(fw_update_msg); + + return 0; +} + +static int hinic_firmware_update(struct hinic_devlink_priv *priv, + const struct firmware *fw, + struct netlink_ext_ack *extack) +{ + struct host_image_st host_image; + int err; + + memset(&host_image, 0, sizeof(struct host_image_st)); + + if (!check_image_valid(priv, fw->data, fw->size, &host_image) || + !check_image_integrity(priv, &host_image, FW_UPDATE_COLD) || + !check_image_device_type(priv, host_image.device_id)) { + NL_SET_ERR_MSG_MOD(extack, "Check image failed"); + return -EINVAL; + } + + dev_info(&priv->hwdev->hwif->pdev->dev, "Flash firmware begin\n"); + + err = hinic_flash_fw(priv, fw->data, &host_image); + if (err) { + if (err == HINIC_FW_DISMATCH_ERROR) { + dev_err(&priv->hwdev->hwif->pdev->dev, "Firmware image doesn't match this card, please use newer image, err: %d\n", + err); + NL_SET_ERR_MSG_MOD(extack, + "Firmware image doesn't match this card, please use newer image"); + } else { + dev_err(&priv->hwdev->hwif->pdev->dev, "Send firmware image data failed, err: %d\n", + err); + NL_SET_ERR_MSG_MOD(extack, "Send firmware image data failed"); + } + + return err; + } + + dev_info(&priv->hwdev->hwif->pdev->dev, "Flash firmware end\n"); + + return 0; +} + +static int hinic_devlink_flash_update(struct devlink *devlink, + const char *file_name, + const char *component, + struct netlink_ext_ack *extack) +{ + struct hinic_devlink_priv *priv = devlink_priv(devlink); + const struct firmware *fw; + int err; + + if (component) + return -EOPNOTSUPP; + + err = request_firmware_direct(&fw, file_name, + &priv->hwdev->hwif->pdev->dev); + if (err) + return err; + + err = hinic_firmware_update(priv, fw, extack); + release_firmware(fw); + + return err; +} + +static const struct devlink_ops hinic_devlink_ops = { + .flash_update = hinic_devlink_flash_update, +}; + +struct devlink *hinic_devlink_alloc(void) +{ + return devlink_alloc(&hinic_devlink_ops, sizeof(struct hinic_dev)); +} + +void hinic_devlink_free(struct devlink *devlink) +{ + devlink_free(devlink); +} + +int hinic_devlink_register(struct devlink *devlink, struct device *dev) +{ + return devlink_register(devlink, dev); +} + +void hinic_devlink_unregister(struct devlink *devlink) +{ + devlink_unregister(devlink); +} |