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net: wwan: iosm: devlink registration
Register with devlink framework and implment callbacks required for fw flashing and coredump collection. Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
M Chetan Kumar
David S. Miller
parent
d44fd8604a
commit
4dcd183fbd
363
drivers/net/wwan/iosm/iosm_ipc_devlink.c
Normal file
363
drivers/net/wwan/iosm/iosm_ipc_devlink.c
Normal file
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@ -0,0 +1,363 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2020-2021 Intel Corporation.
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*/
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#include "iosm_ipc_chnl_cfg.h"
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#include "iosm_ipc_coredump.h"
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#include "iosm_ipc_devlink.h"
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#include "iosm_ipc_flash.h"
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/* Coredump list */
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static struct iosm_coredump_file_info list[IOSM_NOF_CD_REGION] = {
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{"report.json", REPORT_JSON_SIZE,},
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{"coredump.fcd", COREDUMP_FCD_SIZE,},
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{"cdd.log", CDD_LOG_SIZE,},
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{"eeprom.bin", EEPROM_BIN_SIZE,},
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{"bootcore_trace.bin", BOOTCORE_TRC_BIN_SIZE,},
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{"bootcore_prev_trace.bin", BOOTCORE_PREV_TRC_BIN_SIZE,},
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};
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/* Get the param values for the specific param ID's */
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static int ipc_devlink_get_param(struct devlink *dl, u32 id,
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struct devlink_param_gset_ctx *ctx)
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{
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struct iosm_devlink *ipc_devlink = devlink_priv(dl);
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int rc = 0;
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switch (id) {
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case IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH:
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ctx->val.vu8 = ipc_devlink->param.erase_full_flash;
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break;
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case IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION:
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ctx->val.vu8 = ipc_devlink->param.download_region;
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break;
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case IOSM_DEVLINK_PARAM_ID_ADDRESS:
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ctx->val.vu32 = ipc_devlink->param.address;
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break;
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case IOSM_DEVLINK_PARAM_ID_REGION_COUNT:
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ctx->val.vu8 = ipc_devlink->param.region_count;
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break;
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default:
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rc = -EOPNOTSUPP;
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break;
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}
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return rc;
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}
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/* Set the param values for the specific param ID's */
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static int ipc_devlink_set_param(struct devlink *dl, u32 id,
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struct devlink_param_gset_ctx *ctx)
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{
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struct iosm_devlink *ipc_devlink = devlink_priv(dl);
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int rc = 0;
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switch (id) {
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case IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH:
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ipc_devlink->param.erase_full_flash = ctx->val.vu8;
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break;
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case IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION:
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ipc_devlink->param.download_region = ctx->val.vu8;
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break;
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case IOSM_DEVLINK_PARAM_ID_ADDRESS:
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ipc_devlink->param.address = ctx->val.vu32;
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break;
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case IOSM_DEVLINK_PARAM_ID_REGION_COUNT:
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ipc_devlink->param.region_count = ctx->val.vu8;
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break;
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default:
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rc = -EOPNOTSUPP;
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break;
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}
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return rc;
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}
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/* Devlink param structure array */
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static const struct devlink_param iosm_devlink_params[] = {
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DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH,
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"erase_full_flash", DEVLINK_PARAM_TYPE_BOOL,
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BIT(DEVLINK_PARAM_CMODE_RUNTIME),
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ipc_devlink_get_param, ipc_devlink_set_param,
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NULL),
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DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION,
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"download_region", DEVLINK_PARAM_TYPE_BOOL,
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BIT(DEVLINK_PARAM_CMODE_RUNTIME),
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ipc_devlink_get_param, ipc_devlink_set_param,
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NULL),
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DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_ADDRESS,
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"address", DEVLINK_PARAM_TYPE_U32,
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BIT(DEVLINK_PARAM_CMODE_RUNTIME),
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ipc_devlink_get_param, ipc_devlink_set_param,
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NULL),
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DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_REGION_COUNT,
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"region_count", DEVLINK_PARAM_TYPE_U8,
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BIT(DEVLINK_PARAM_CMODE_RUNTIME),
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ipc_devlink_get_param, ipc_devlink_set_param,
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NULL),
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};
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/* Get devlink flash component type */
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static enum iosm_flash_comp_type
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ipc_devlink_get_flash_comp_type(const char comp_str[], u32 len)
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{
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enum iosm_flash_comp_type fls_type;
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if (!strncmp("PSI", comp_str, len))
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fls_type = FLASH_COMP_TYPE_PSI;
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else if (!strncmp("EBL", comp_str, len))
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fls_type = FLASH_COMP_TYPE_EBL;
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else if (!strncmp("FLS", comp_str, len))
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fls_type = FLASH_COMP_TYPE_FLS;
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else
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fls_type = FLASH_COMP_TYPE_INVAL;
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return fls_type;
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}
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/* Function triggered on devlink flash command
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* Flash update function which calls multiple functions based on
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* component type specified in the flash command
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*/
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static int ipc_devlink_flash_update(struct devlink *devlink,
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struct devlink_flash_update_params *params,
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struct netlink_ext_ack *extack)
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{
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struct iosm_devlink *ipc_devlink = devlink_priv(devlink);
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enum iosm_flash_comp_type fls_type;
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u32 rc = -EINVAL;
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u8 *mdm_rsp;
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if (!params->component)
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return rc;
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mdm_rsp = kzalloc(IOSM_EBL_DW_PACK_SIZE, GFP_KERNEL);
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if (!mdm_rsp)
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return -ENOMEM;
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fls_type = ipc_devlink_get_flash_comp_type(params->component,
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strlen(params->component));
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switch (fls_type) {
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case FLASH_COMP_TYPE_PSI:
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rc = ipc_flash_boot_psi(ipc_devlink, params->fw);
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break;
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case FLASH_COMP_TYPE_EBL:
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rc = ipc_flash_boot_ebl(ipc_devlink, params->fw);
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if (!rc)
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rc = ipc_flash_boot_set_capabilities(ipc_devlink,
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mdm_rsp);
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if (!rc)
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rc = ipc_flash_read_swid(ipc_devlink, mdm_rsp);
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break;
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case FLASH_COMP_TYPE_FLS:
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rc = ipc_flash_send_fls(ipc_devlink, params->fw, mdm_rsp);
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break;
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default:
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devlink_flash_update_status_notify(devlink, "Invalid component",
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params->component, 0, 0);
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break;
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}
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if (!rc)
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devlink_flash_update_status_notify(devlink, "Flashing success",
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params->component, 0, 0);
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else
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devlink_flash_update_status_notify(devlink, "Flashing failed",
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params->component, 0, 0);
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kfree(mdm_rsp);
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return rc;
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}
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/* Call back function for devlink ops */
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static const struct devlink_ops devlink_flash_ops = {
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.supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT,
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.flash_update = ipc_devlink_flash_update,
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};
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/* Send command to modem to collect data */
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int ipc_devlink_send_cmd(struct iosm_devlink *ipc_devlink, u16 cmd, u32 entry)
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{
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struct iosm_rpsi_cmd rpsi_cmd;
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rpsi_cmd.param.dword = cpu_to_le32(entry);
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rpsi_cmd.cmd = cpu_to_le16(cmd);
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rpsi_cmd.crc = rpsi_cmd.param.word[0] ^ rpsi_cmd.param.word[1] ^
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rpsi_cmd.cmd;
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return ipc_imem_sys_devlink_write(ipc_devlink, (u8 *)&rpsi_cmd,
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sizeof(rpsi_cmd));
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}
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static int ipc_devlink_coredump_snapshot(struct devlink *dl,
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const struct devlink_region_ops *ops,
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struct netlink_ext_ack *extack,
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u8 **data)
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{
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struct iosm_devlink *ipc_devlink = devlink_priv(dl);
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struct iosm_coredump_file_info *cd_list = ops->priv;
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u32 region_size;
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int rc;
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dev_dbg(ipc_devlink->dev, "Region:%s, ID:%d", ops->name,
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cd_list->entry);
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region_size = cd_list->default_size;
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rc = ipc_coredump_collect(ipc_devlink, data, cd_list->entry,
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region_size);
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if (rc) {
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dev_err(ipc_devlink->dev, "Fail to create snapshot,err %d", rc);
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goto coredump_collect_err;
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}
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/* Send coredump end cmd indicating end of coredump collection */
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if (cd_list->entry == (IOSM_NOF_CD_REGION - 1))
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ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end);
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return rc;
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coredump_collect_err:
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ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end);
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return rc;
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}
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/* To create regions for coredump files */
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static int ipc_devlink_create_region(struct iosm_devlink *devlink)
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{
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struct devlink_region_ops *mdm_coredump;
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int rc = 0;
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int i;
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mdm_coredump = devlink->iosm_devlink_mdm_coredump;
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for (i = 0; i < IOSM_NOF_CD_REGION; i++) {
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mdm_coredump[i].name = list[i].filename;
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mdm_coredump[i].snapshot = ipc_devlink_coredump_snapshot;
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mdm_coredump[i].destructor = vfree;
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devlink->cd_regions[i] =
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devlink_region_create(devlink->devlink_ctx,
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&mdm_coredump[i], MAX_SNAPSHOTS,
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list[i].default_size);
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if (IS_ERR(devlink->cd_regions[i])) {
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rc = PTR_ERR(devlink->cd_regions[i]);
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dev_err(devlink->dev, "Devlink region fail,err %d", rc);
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/* Delete previously created regions */
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for ( ; i >= 0; i--)
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devlink_region_destroy(devlink->cd_regions[i]);
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goto region_create_fail;
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}
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list[i].entry = i;
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mdm_coredump[i].priv = list + i;
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}
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region_create_fail:
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return rc;
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}
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/* To Destroy devlink regions */
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static void ipc_devlink_destroy_region(struct iosm_devlink *ipc_devlink)
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{
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u8 i;
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for (i = 0; i < IOSM_NOF_CD_REGION; i++)
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devlink_region_destroy(ipc_devlink->cd_regions[i]);
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}
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/* Handle registration to devlink framework */
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struct iosm_devlink *ipc_devlink_init(struct iosm_imem *ipc_imem)
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{
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struct ipc_chnl_cfg chnl_cfg_flash = { 0 };
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struct iosm_devlink *ipc_devlink;
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struct devlink *devlink_ctx;
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int rc;
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devlink_ctx = devlink_alloc(&devlink_flash_ops,
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sizeof(struct iosm_devlink),
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ipc_imem->dev);
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if (!devlink_ctx) {
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dev_err(ipc_imem->dev, "devlink_alloc failed");
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goto devlink_alloc_fail;
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}
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ipc_devlink = devlink_priv(devlink_ctx);
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ipc_devlink->devlink_ctx = devlink_ctx;
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ipc_devlink->pcie = ipc_imem->pcie;
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ipc_devlink->dev = ipc_imem->dev;
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rc = devlink_register(devlink_ctx);
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if (rc) {
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dev_err(ipc_devlink->dev, "devlink_register failed rc %d", rc);
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goto free_dl;
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}
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rc = devlink_params_register(devlink_ctx, iosm_devlink_params,
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ARRAY_SIZE(iosm_devlink_params));
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if (rc) {
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dev_err(ipc_devlink->dev,
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"devlink_params_register failed. rc %d", rc);
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goto param_reg_fail;
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}
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devlink_params_publish(devlink_ctx);
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ipc_devlink->cd_file_info = list;
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rc = ipc_devlink_create_region(ipc_devlink);
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if (rc) {
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dev_err(ipc_devlink->dev, "Devlink Region create failed, rc %d",
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rc);
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goto region_create_fail;
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}
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if (ipc_chnl_cfg_get(&chnl_cfg_flash, IPC_MEM_CTRL_CHL_ID_7) < 0)
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goto chnl_get_fail;
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ipc_imem_channel_init(ipc_imem, IPC_CTYPE_CTRL,
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chnl_cfg_flash, IRQ_MOD_OFF);
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init_completion(&ipc_devlink->devlink_sio.read_sem);
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skb_queue_head_init(&ipc_devlink->devlink_sio.rx_list);
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dev_dbg(ipc_devlink->dev, "iosm devlink register success");
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return ipc_devlink;
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chnl_get_fail:
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ipc_devlink_destroy_region(ipc_devlink);
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region_create_fail:
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devlink_params_unpublish(devlink_ctx);
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devlink_params_unregister(devlink_ctx, iosm_devlink_params,
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ARRAY_SIZE(iosm_devlink_params));
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param_reg_fail:
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devlink_unregister(devlink_ctx);
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free_dl:
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devlink_free(devlink_ctx);
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devlink_alloc_fail:
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return NULL;
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}
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/* Handle unregistration of devlink */
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void ipc_devlink_deinit(struct iosm_devlink *ipc_devlink)
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{
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struct devlink *devlink_ctx = ipc_devlink->devlink_ctx;
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ipc_devlink_destroy_region(ipc_devlink);
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devlink_params_unpublish(devlink_ctx);
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devlink_params_unregister(devlink_ctx, iosm_devlink_params,
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ARRAY_SIZE(iosm_devlink_params));
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if (ipc_devlink->devlink_sio.devlink_read_pend) {
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complete(&ipc_devlink->devlink_sio.read_sem);
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complete(&ipc_devlink->devlink_sio.channel->ul_sem);
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}
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if (!ipc_devlink->devlink_sio.devlink_read_pend)
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skb_queue_purge(&ipc_devlink->devlink_sio.rx_list);
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ipc_imem_sys_devlink_close(ipc_devlink);
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devlink_unregister(devlink_ctx);
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devlink_free(devlink_ctx);
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}
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207
drivers/net/wwan/iosm/iosm_ipc_devlink.h
Normal file
207
drivers/net/wwan/iosm/iosm_ipc_devlink.h
Normal file
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@ -0,0 +1,207 @@
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/* SPDX-License-Identifier: GPL-2.0-only
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*
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* Copyright (C) 2020-2021 Intel Corporation.
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*/
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#ifndef _IOSM_IPC_DEVLINK_H_
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#define _IOSM_IPC_DEVLINK_H_
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#include <net/devlink.h>
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#include "iosm_ipc_imem.h"
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#include "iosm_ipc_imem_ops.h"
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#include "iosm_ipc_pcie.h"
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/* MAX file name length */
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#define IOSM_MAX_FILENAME_LEN 32
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/* EBL response size */
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#define IOSM_EBL_RSP_SIZE 76
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/* MAX number of regions supported */
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#define IOSM_NOF_CD_REGION 6
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/* MAX number of SNAPSHOTS supported */
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#define MAX_SNAPSHOTS 1
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/* Default Coredump file size */
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#define REPORT_JSON_SIZE 0x800
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#define COREDUMP_FCD_SIZE 0x10E00000
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#define CDD_LOG_SIZE 0x30000
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#define EEPROM_BIN_SIZE 0x10000
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#define BOOTCORE_TRC_BIN_SIZE 0x8000
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#define BOOTCORE_PREV_TRC_BIN_SIZE 0x20000
|
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|
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/**
|
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* enum iosm_devlink_param_id - Enum type to different devlink params
|
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* @IOSM_DEVLINK_PARAM_ID_BASE: Devlink param base ID
|
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* @IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH: Set if full erase required
|
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* @IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION: Set if fls file to be
|
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* flashed is Loadmap/region file
|
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* @IOSM_DEVLINK_PARAM_ID_ADDRESS: Address of the region to be
|
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* flashed
|
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* @IOSM_DEVLINK_PARAM_ID_REGION_COUNT: Max region count
|
||||
*/
|
||||
|
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enum iosm_devlink_param_id {
|
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IOSM_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
|
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IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH,
|
||||
IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION,
|
||||
IOSM_DEVLINK_PARAM_ID_ADDRESS,
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IOSM_DEVLINK_PARAM_ID_REGION_COUNT,
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};
|
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|
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/**
|
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* enum iosm_rpsi_cmd_code - Enum type for RPSI command list
|
||||
* @rpsi_cmd_code_ebl: Command to load ebl
|
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* @rpsi_cmd_coredump_start: Command to get list of files and
|
||||
* file size info from PSI
|
||||
* @rpsi_cmd_coredump_get: Command to get the coredump data
|
||||
* @rpsi_cmd_coredump_end: Command to stop receiving the coredump
|
||||
*/
|
||||
enum iosm_rpsi_cmd_code {
|
||||
rpsi_cmd_code_ebl = 0x02,
|
||||
rpsi_cmd_coredump_start = 0x10,
|
||||
rpsi_cmd_coredump_get = 0x11,
|
||||
rpsi_cmd_coredump_end = 0x12,
|
||||
};
|
||||
|
||||
/**
|
||||
* enum iosm_flash_comp_type - Enum for different flash component types
|
||||
* @FLASH_COMP_TYPE_PSI: PSI flash comp type
|
||||
* @FLASH_COMP_TYPE_EBL: EBL flash comp type
|
||||
* @FLASH_COMP_TYPE_FLS: FLS flash comp type
|
||||
* @FLASH_COMP_TYPE_INVAL: Invalid flash comp type
|
||||
*/
|
||||
enum iosm_flash_comp_type {
|
||||
FLASH_COMP_TYPE_PSI,
|
||||
FLASH_COMP_TYPE_EBL,
|
||||
FLASH_COMP_TYPE_FLS,
|
||||
FLASH_COMP_TYPE_INVAL,
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iosm_devlink_sio - SIO instance
|
||||
* @rx_list: Downlink skbuf list received from CP
|
||||
* @read_sem: Needed for the blocking read or downlink transfer
|
||||
* @channel_id: Reserved channel id for flashing/CD collection to RAM
|
||||
* @channel: Channel instance for flashing and coredump
|
||||
* @devlink_read_pend: Check if read is pending
|
||||
*/
|
||||
struct iosm_devlink_sio {
|
||||
struct sk_buff_head rx_list;
|
||||
struct completion read_sem;
|
||||
int channel_id;
|
||||
struct ipc_mem_channel *channel;
|
||||
u32 devlink_read_pend;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iosm_flash_params - List of flash params required for flashing
|
||||
* @address: Address of the region file to be flashed
|
||||
* @region_count: Maximum no of regions for each fls file
|
||||
* @download_region: To be set if region is being flashed
|
||||
* @erase_full_flash: To set the flashing mode
|
||||
* erase_full_flash = 1; full erase
|
||||
* erase_full_flash = 0; no erase
|
||||
* @erase_full_flash_done: Flag to check if it is a full erase
|
||||
*/
|
||||
struct iosm_flash_params {
|
||||
u32 address;
|
||||
u8 region_count;
|
||||
u8 download_region;
|
||||
u8 erase_full_flash;
|
||||
u8 erase_full_flash_done;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iosm_ebl_ctx_data - EBL ctx data used during flashing
|
||||
* @ebl_sw_info_version: SWID version info obtained from EBL
|
||||
* @m_ebl_resp: Buffer used to read and write the ebl data
|
||||
*/
|
||||
struct iosm_ebl_ctx_data {
|
||||
u8 ebl_sw_info_version;
|
||||
u8 m_ebl_resp[IOSM_EBL_RSP_SIZE];
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iosm_coredump_file_info - Coredump file info
|
||||
* @filename: Name of coredump file
|
||||
* @default_size: Default size of coredump file
|
||||
* @actual_size: Actual size of coredump file
|
||||
* @entry: Index of the coredump file
|
||||
*/
|
||||
struct iosm_coredump_file_info {
|
||||
char filename[IOSM_MAX_FILENAME_LEN];
|
||||
u32 default_size;
|
||||
u32 actual_size;
|
||||
u32 entry;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iosm_devlink - IOSM Devlink structure
|
||||
* @devlink_sio: SIO instance for read/write functionality
|
||||
* @pcie: Pointer to PCIe component
|
||||
* @dev: Pointer to device struct
|
||||
* @devlink_ctx: Pointer to devlink context
|
||||
* @param: Params required for flashing
|
||||
* @ebl_ctx: Data to be read and written to Modem
|
||||
* @cd_file_info: coredump file info
|
||||
* @iosm_devlink_mdm_coredump: region ops for coredump collection
|
||||
* @cd_regions: coredump regions
|
||||
*/
|
||||
struct iosm_devlink {
|
||||
struct iosm_devlink_sio devlink_sio;
|
||||
struct iosm_pcie *pcie;
|
||||
struct device *dev;
|
||||
struct devlink *devlink_ctx;
|
||||
struct iosm_flash_params param;
|
||||
struct iosm_ebl_ctx_data ebl_ctx;
|
||||
struct iosm_coredump_file_info *cd_file_info;
|
||||
struct devlink_region_ops iosm_devlink_mdm_coredump[IOSM_NOF_CD_REGION];
|
||||
struct devlink_region *cd_regions[IOSM_NOF_CD_REGION];
|
||||
};
|
||||
|
||||
/**
|
||||
* union iosm_rpsi_param_u - RPSI cmd param for CRC calculation
|
||||
* @word: Words member used in CRC calculation
|
||||
* @dword: Actual data
|
||||
*/
|
||||
union iosm_rpsi_param_u {
|
||||
__le16 word[2];
|
||||
__le32 dword;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iosm_rpsi_cmd - Structure for RPSI Command
|
||||
* @param: Used to calculate CRC
|
||||
* @cmd: Stores the RPSI command
|
||||
* @crc: Stores the CRC value
|
||||
*/
|
||||
struct iosm_rpsi_cmd {
|
||||
union iosm_rpsi_param_u param;
|
||||
__le16 cmd;
|
||||
__le16 crc;
|
||||
};
|
||||
|
||||
/**
|
||||
* ipc_devlink_init - To initialize the devlink to IOSM driver
|
||||
* @ipc_imem: Pointer to struct iosm_imem
|
||||
*
|
||||
* Returns: Pointer to iosm_devlink on success and NULL on failure
|
||||
*/
|
||||
struct iosm_devlink *ipc_devlink_init(struct iosm_imem *ipc_imem);
|
||||
|
||||
/**
|
||||
* ipc_devlink_deinit - To unintialize the devlink from IOSM driver.
|
||||
* @ipc_devlink: Devlink instance
|
||||
*/
|
||||
void ipc_devlink_deinit(struct iosm_devlink *ipc_devlink);
|
||||
|
||||
/**
|
||||
* ipc_devlink_send_cmd - Send command to Modem
|
||||
* @ipc_devlink: Pointer to struct iosm_devlink
|
||||
* @cmd: Command to be sent to modem
|
||||
* @entry: Command entry number
|
||||
*
|
||||
* Returns: 0 on success and failure value on error
|
||||
*/
|
||||
int ipc_devlink_send_cmd(struct iosm_devlink *ipc_devlink, u16 cmd, u32 entry);
|
||||
|
||||
#endif /* _IOSM_IPC_DEVLINK_H */
|
||||
Loading…
Reference in New Issue
Block a user