/* SPDX-License-Identifier: GPL-2.0-only */ #include <console/console.h> #include "ipmi_ops.h" #include "ipmi_if.h" #include <string.h> #include <types.h> enum cb_err ipmi_init_and_start_bmc_wdt(const int port, uint16_t countdown, uint8_t action) { int ret; struct ipmi_wdt_req req = {0}; struct ipmi_rsp rsp; printk(BIOS_INFO, "Initializing IPMI BMC watchdog timer\n"); /* BIOS FRB2 */ req.timer_use = 1; req.timer_actions = action; /* clear BIOS FRB2 expiration flag */ req.timer_use_expiration_flags_clr = 2; req.initial_countdown_val = countdown; ret = ipmi_message(port, IPMI_NETFN_APPLICATION, 0x0, IPMI_BMC_SET_WDG_TIMER, (const unsigned char *)&req, sizeof(req), (unsigned char *)&rsp, sizeof(rsp)); if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) { printk(BIOS_ERR, "IPMI: %s set wdt command failed " "(ret=%d resp=0x%x), failed to initialize and start " "IPMI BMC watchdog timer\n", __func__, ret, rsp.completion_code); return CB_ERR; } /* Reset command to start timer */ ret = ipmi_message(port, IPMI_NETFN_APPLICATION, 0x0, IPMI_BMC_RESET_WDG_TIMER, NULL, 0, (unsigned char *)&rsp, sizeof(rsp)); if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) { printk(BIOS_ERR, "IPMI: %s reset wdt command failed " "(ret=%d resp=0x%x), failed to initialize and start " "IPMI BMC watchdog timer\n", __func__, ret, rsp.completion_code); return CB_ERR; } printk(BIOS_INFO, "IPMI BMC watchdog initialized and started.\n"); return CB_SUCCESS; } enum cb_err ipmi_stop_bmc_wdt(const int port) { int ret; struct ipmi_wdt_req req; struct ipmi_wdt_rsp rsp = {0}; struct ipmi_rsp resp; /* Get current timer first */ ret = ipmi_message(port, IPMI_NETFN_APPLICATION, 0x0, IPMI_BMC_GET_WDG_TIMER, NULL, 0, (unsigned char *)&rsp, sizeof(rsp)); if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) { printk(BIOS_ERR, "IPMI: %s get wdt command failed " "(ret=%d resp=0x%x), IPMI BMC watchdog timer may still " "be running\n", __func__, ret, rsp.resp.completion_code); return CB_ERR; } /* If bit 6 in timer_use is 0 then it's already stopped. */ if (!(rsp.data.timer_use & (1 << 6))) { printk(BIOS_DEBUG, "IPMI BMC watchdog is already stopped\n"); return CB_SUCCESS; } /* Set timer stop running by clearing bit 6. */ rsp.data.timer_use &= ~(1 << 6); rsp.data.initial_countdown_val = 0; req = rsp.data; ret = ipmi_message(port, IPMI_NETFN_APPLICATION, 0x0, IPMI_BMC_SET_WDG_TIMER, (const unsigned char *)&req, sizeof(req), (unsigned char *)&resp, sizeof(resp)); if (ret < sizeof(struct ipmi_rsp) || resp.completion_code) { printk(BIOS_ERR, "IPMI: %s set wdt command stop timer failed " "(ret=%d resp=0x%x), failed to stop IPMI " "BMC watchdog timer\n", __func__, ret, resp.completion_code); return CB_ERR; } printk(BIOS_DEBUG, "IPMI BMC watchdog is stopped\n"); return CB_SUCCESS; } enum cb_err ipmi_get_system_guid(const int port, uint8_t *uuid) { int ret; struct ipmi_get_system_guid_rsp rsp; if (uuid == NULL) { printk(BIOS_ERR, "%s failed, null pointer parameter\n", __func__); return CB_ERR; } ret = ipmi_message(port, IPMI_NETFN_APPLICATION, 0x0, IPMI_BMC_GET_SYSTEM_GUID, NULL, 0, (unsigned char *)&rsp, sizeof(rsp)); if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) { printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n", __func__, ret, rsp.resp.completion_code); return CB_ERR; } memcpy(uuid, rsp.data, 16); return CB_SUCCESS; } enum cb_err ipmi_add_sel(const int port, struct sel_event_record *sel) { int ret; struct ipmi_add_sel_rsp rsp; if (sel == NULL) { printk(BIOS_ERR, "%s failed, system event log is not present.\n", __func__); return CB_ERR; } ret = ipmi_message(port, IPMI_NETFN_STORAGE, 0x0, IPMI_ADD_SEL_ENTRY, (const unsigned char *)sel, 16, (unsigned char *)&rsp, sizeof(rsp)); if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) { printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n", __func__, ret, rsp.resp.completion_code); return CB_ERR; } return CB_SUCCESS; }