linux/drivers/net/wireless/intel/iwlwifi/mld/fw.c

// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright (C) 2024-2025 Intel Corporation
 */

#include "mld.h"

#include "fw/api/alive.h"
#include "fw/api/scan.h"
#include "fw/api/rx.h"
#include "phy.h"
#include "fw/dbg.h"
#include "fw/pnvm.h"
#include "hcmd.h"
#include "power.h"
#include "mcc.h"
#include "led.h"
#include "coex.h"
#include "regulatory.h"
#include "thermal.h"

static int iwl_mld_send_tx_ant_cfg(struct iwl_mld *mld)
{
	struct iwl_tx_ant_cfg_cmd cmd;

	lockdep_assert_wiphy(mld->wiphy);

	cmd.valid = cpu_to_le32(iwl_mld_get_valid_tx_ant(mld));

	IWL_DEBUG_FW(mld, "select valid tx ant: %u\n", cmd.valid);

	return iwl_mld_send_cmd_pdu(mld, TX_ANT_CONFIGURATION_CMD, &cmd);
}

static int iwl_mld_send_rss_cfg_cmd(struct iwl_mld *mld)
{
	struct iwl_rss_config_cmd cmd = {
		.flags = cpu_to_le32(IWL_RSS_ENABLE),
		.hash_mask = BIT(IWL_RSS_HASH_TYPE_IPV4_TCP) |
			     BIT(IWL_RSS_HASH_TYPE_IPV4_UDP) |
			     BIT(IWL_RSS_HASH_TYPE_IPV4_PAYLOAD) |
			     BIT(IWL_RSS_HASH_TYPE_IPV6_TCP) |
			     BIT(IWL_RSS_HASH_TYPE_IPV6_UDP) |
			     BIT(IWL_RSS_HASH_TYPE_IPV6_PAYLOAD),
	};

	lockdep_assert_wiphy(mld->wiphy);

	/* Do not direct RSS traffic to Q 0 which is our fallback queue */
	for (int i = 0; i < ARRAY_SIZE(cmd.indirection_table); i++)
		cmd.indirection_table[i] =
			1 + (i % (mld->trans->info.num_rxqs - 1));
	netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));

	return iwl_mld_send_cmd_pdu(mld, RSS_CONFIG_CMD, &cmd);
}

static int iwl_mld_config_scan(struct iwl_mld *mld)
{
	struct iwl_scan_config cmd = {
		.tx_chains = cpu_to_le32(iwl_mld_get_valid_tx_ant(mld)),
		.rx_chains = cpu_to_le32(iwl_mld_get_valid_rx_ant(mld))
	};

	return iwl_mld_send_cmd_pdu(mld, WIDE_ID(LONG_GROUP, SCAN_CFG_CMD),
				    &cmd);
}

static void iwl_mld_alive_imr_data(struct iwl_trans *trans,
				   const struct iwl_imr_alive_info *imr_info)
{
	struct iwl_imr_data *imr_data = &trans->dbg.imr_data;

	imr_data->imr_enable = le32_to_cpu(imr_info->enabled);
	imr_data->imr_size = le32_to_cpu(imr_info->size);
	imr_data->imr2sram_remainbyte = imr_data->imr_size;
	imr_data->imr_base_addr = imr_info->base_addr;
	imr_data->imr_curr_addr = le64_to_cpu(imr_data->imr_base_addr);

	if (imr_data->imr_enable)
		return;

	for (int i = 0; i < ARRAY_SIZE(trans->dbg.active_regions); i++) {
		struct iwl_fw_ini_region_tlv *reg;

		if (!trans->dbg.active_regions[i])
			continue;

		reg = (void *)trans->dbg.active_regions[i]->data;

		/* We have only one DRAM IMR region, so we
		 * can break as soon as we find the first
		 * one.
		 */
		if (reg->type == IWL_FW_INI_REGION_DRAM_IMR) {
			trans->dbg.unsupported_region_msk |= BIT(i);
			break;
		}
	}
}

struct iwl_mld_alive_data {
	__le32 sku_id[3];
	bool valid;
};

static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
			 struct iwl_rx_packet *pkt, void *data)
{
	unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
	unsigned int expected_sz;
	struct iwl_mld *mld =
		container_of(notif_wait, struct iwl_mld, notif_wait);
	struct iwl_trans *trans = mld->trans;
	u32 version = iwl_fw_lookup_notif_ver(mld->fw, LEGACY_GROUP,
					      UCODE_ALIVE_NTFY, 0);
	struct iwl_mld_alive_data *alive_data = data;
	struct iwl_alive_ntf *palive;
	struct iwl_umac_alive *umac;
	struct iwl_lmac_alive *lmac1;
	struct iwl_lmac_alive *lmac2 = NULL;
	u32 lmac_error_event_table;
	u32 umac_error_table;
	u16 status;

	switch (version) {
	case 6:
	case 7:
		expected_sz = sizeof(struct iwl_alive_ntf_v6);
		break;
	case 8:
		expected_sz = sizeof(struct iwl_alive_ntf);
		break;
	default:
		return false;
	}

	if (pkt_len != expected_sz)
		return false;

	palive = (void *)pkt->data;

	iwl_mld_alive_imr_data(trans, &palive->imr);

	umac = &palive->umac_data;
	lmac1 = &palive->lmac_data[0];
	lmac2 = &palive->lmac_data[1];
	status = le16_to_cpu(palive->status);

	BUILD_BUG_ON(sizeof(alive_data->sku_id) !=
		     sizeof(palive->sku_id.data));
	memcpy(alive_data->sku_id, palive->sku_id.data,
	       sizeof(palive->sku_id.data));

	IWL_DEBUG_FW(mld, "Got sku_id: 0x0%x 0x0%x 0x0%x\n",
		     le32_to_cpu(alive_data->sku_id[0]),
		     le32_to_cpu(alive_data->sku_id[1]),
		     le32_to_cpu(alive_data->sku_id[2]));

	lmac_error_event_table =
		le32_to_cpu(lmac1->dbg_ptrs.error_event_table_ptr);
	iwl_fw_lmac1_set_alive_err_table(trans, lmac_error_event_table);

	if (lmac2)
		trans->dbg.lmac_error_event_table[1] =
			le32_to_cpu(lmac2->dbg_ptrs.error_event_table_ptr);

	umac_error_table = le32_to_cpu(umac->dbg_ptrs.error_info_addr) &
		~FW_ADDR_CACHE_CONTROL;

	if (umac_error_table >= trans->mac_cfg->base->min_umac_error_event_table)
		iwl_fw_umac_set_alive_err_table(trans, umac_error_table);
	else
		IWL_ERR(mld, "Not valid error log pointer 0x%08X\n",
			umac_error_table);

	alive_data->valid = status == IWL_ALIVE_STATUS_OK;

	IWL_DEBUG_FW(mld,
		     "Alive ucode status 0x%04x revision 0x%01X 0x%01X\n",
		     status, lmac1->ver_type, lmac1->ver_subtype);

	if (lmac2)
		IWL_DEBUG_FW(mld, "Alive ucode CDB\n");

	IWL_DEBUG_FW(mld,
		     "UMAC version: Major - 0x%x, Minor - 0x%x\n",
		     le32_to_cpu(umac->umac_major),
		     le32_to_cpu(umac->umac_minor));

	if (version >= 7)
		IWL_DEBUG_FW(mld, "FW alive flags 0x%x\n",
			     le16_to_cpu(palive->flags));

	if (version >= 8)
		IWL_DEBUG_FW(mld, "platform_id 0x%llx\n",
			     le64_to_cpu(palive->platform_id));

	iwl_fwrt_update_fw_versions(&mld->fwrt, lmac1, umac);

	return true;
}

#define MLD_ALIVE_TIMEOUT		(2 * HZ)
#define MLD_INIT_COMPLETE_TIMEOUT	(2 * HZ)

static void iwl_mld_print_alive_notif_timeout(struct iwl_mld *mld)
{
	struct iwl_trans *trans = mld->trans;
	struct iwl_pc_data *pc_data;
	u8 count;

	IWL_ERR(mld,
		"SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
		iwl_read_umac_prph(trans, UMAG_SB_CPU_1_STATUS),
		iwl_read_umac_prph(trans,
				   UMAG_SB_CPU_2_STATUS));
#define IWL_FW_PRINT_REG_INFO(reg_name) \
	IWL_ERR(mld, #reg_name ": 0x%x\n", iwl_read_umac_prph(trans, reg_name))

	IWL_FW_PRINT_REG_INFO(WFPM_LMAC1_PD_NOTIFICATION);

	IWL_FW_PRINT_REG_INFO(HPM_SECONDARY_DEVICE_STATE);

	/* print OTP info */
	IWL_FW_PRINT_REG_INFO(WFPM_MAC_OTP_CFG7_ADDR);
	IWL_FW_PRINT_REG_INFO(WFPM_MAC_OTP_CFG7_DATA);
#undef IWL_FW_PRINT_REG_INFO

	pc_data = trans->dbg.pc_data;
	for (count = 0; count < trans->dbg.num_pc; count++, pc_data++)
		IWL_ERR(mld, "%s: 0x%x\n", pc_data->pc_name,
			pc_data->pc_address);
}

static int iwl_mld_load_fw_wait_alive(struct iwl_mld *mld,
				      struct iwl_mld_alive_data *alive_data)
{
	static const u16 alive_cmd[] = { UCODE_ALIVE_NTFY };
	struct iwl_notification_wait alive_wait;
	int ret;

	lockdep_assert_wiphy(mld->wiphy);

	iwl_init_notification_wait(&mld->notif_wait, &alive_wait,
				   alive_cmd, ARRAY_SIZE(alive_cmd),
				   iwl_alive_fn, alive_data);

	iwl_dbg_tlv_time_point(&mld->fwrt, IWL_FW_INI_TIME_POINT_EARLY, NULL);

	ret = iwl_trans_start_fw(mld->trans, mld->fw, IWL_UCODE_REGULAR, true);
	if (ret) {
		iwl_remove_notification(&mld->notif_wait, &alive_wait);
		return ret;
	}

	ret = iwl_wait_notification(&mld->notif_wait, &alive_wait,
				    MLD_ALIVE_TIMEOUT);

	if (ret) {
		if (ret == -ETIMEDOUT)
			iwl_fw_dbg_error_collect(&mld->fwrt,
						 FW_DBG_TRIGGER_ALIVE_TIMEOUT);
		iwl_mld_print_alive_notif_timeout(mld);
		return ret;
	}

	if (!alive_data->valid) {
		IWL_ERR(mld, "Loaded firmware is not valid!\n");
		return -EIO;
	}

	iwl_trans_fw_alive(mld->trans);

	return 0;
}

static int iwl_mld_run_fw_init_sequence(struct iwl_mld *mld)
{
	struct iwl_notification_wait init_wait;
	struct iwl_init_extended_cfg_cmd init_cfg = {
		.init_flags = cpu_to_le32(BIT(IWL_INIT_PHY)),
	};
	struct iwl_mld_alive_data alive_data = {};
	static const u16 init_complete[] = {
		INIT_COMPLETE_NOTIF,
	};
	int ret;

	lockdep_assert_wiphy(mld->wiphy);

	ret = iwl_mld_load_fw_wait_alive(mld, &alive_data);
	if (ret)
		return ret;

	ret = iwl_pnvm_load(mld->trans, &mld->notif_wait,
			    mld->fw, alive_data.sku_id);
	if (ret) {
		IWL_ERR(mld, "Timeout waiting for PNVM load %d\n", ret);
		return ret;
	}

	iwl_dbg_tlv_time_point(&mld->fwrt, IWL_FW_INI_TIME_POINT_AFTER_ALIVE,
			       NULL);

	iwl_init_notification_wait(&mld->notif_wait,
				   &init_wait,
				   init_complete,
				   ARRAY_SIZE(init_complete),
				   NULL, NULL);

	ret = iwl_mld_send_cmd_pdu(mld,
				   WIDE_ID(SYSTEM_GROUP, INIT_EXTENDED_CFG_CMD),
				   &init_cfg);
	if (ret) {
		IWL_ERR(mld, "Failed to send init config command: %d\n", ret);
		iwl_remove_notification(&mld->notif_wait, &init_wait);
		return ret;
	}

	ret = iwl_mld_send_phy_cfg_cmd(mld);
	if (ret) {
		IWL_ERR(mld, "Failed to send PHY config command: %d\n", ret);
		iwl_remove_notification(&mld->notif_wait, &init_wait);
		return ret;
	}

	ret = iwl_wait_notification(&mld->notif_wait, &init_wait,
				    MLD_INIT_COMPLETE_TIMEOUT);
	if (ret) {
		IWL_ERR(mld, "Failed to get INIT_COMPLETE %d\n", ret);
		return ret;
	}

	return 0;
}

int iwl_mld_load_fw(struct iwl_mld *mld)
{
	int ret;

	lockdep_assert_wiphy(mld->wiphy);

	ret = iwl_trans_start_hw(mld->trans);
	if (ret)
		return ret;

	ret = iwl_mld_run_fw_init_sequence(mld);
	if (ret)
		goto err;

	mld->fw_status.running = true;

	return 0;
err:
	iwl_mld_stop_fw(mld);
	return ret;
}

void iwl_mld_stop_fw(struct iwl_mld *mld)
{
	lockdep_assert_wiphy(mld->wiphy);

	iwl_abort_notification_waits(&mld->notif_wait);

	iwl_fw_dbg_stop_sync(&mld->fwrt);

	iwl_trans_stop_device(mld->trans);

	/* HW is stopped, no more coming RX. Cancel all notifications in
	 * case they were sent just before stopping the HW.
	 */
	iwl_mld_cancel_async_notifications(mld);

	mld->fw_status.running = false;
}

static void iwl_mld_restart_disconnect_iter(void *data, u8 *mac,
					    struct ieee80211_vif *vif)
{
	if (vif->type == NL80211_IFTYPE_STATION)
		ieee80211_hw_restart_disconnect(vif);
}

void iwl_mld_send_recovery_cmd(struct iwl_mld *mld, u32 flags)
{
	u32 error_log_size = mld->fw->ucode_capa.error_log_size;
	struct iwl_fw_error_recovery_cmd recovery_cmd = {
		.flags = cpu_to_le32(flags),
	};
	struct iwl_host_cmd cmd = {
		.id = WIDE_ID(SYSTEM_GROUP, FW_ERROR_RECOVERY_CMD),
		.flags = CMD_WANT_SKB,
		.data = {&recovery_cmd, },
		.len = {sizeof(recovery_cmd), },
	};
	int ret;

	/* no error log was defined in TLV */
	if (!error_log_size)
		return;

	if (flags & ERROR_RECOVERY_UPDATE_DB) {
		/* no buf was allocated upon NIC error */
		if (!mld->error_recovery_buf)
			return;

		cmd.data[1] = mld->error_recovery_buf;
		cmd.len[1] =  error_log_size;
		cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
		recovery_cmd.buf_size = cpu_to_le32(error_log_size);
	}

	ret = iwl_mld_send_cmd(mld, &cmd);

	/* we no longer need the recovery buffer */
	kfree(mld->error_recovery_buf);
	mld->error_recovery_buf = NULL;

	if (ret) {
		IWL_ERR(mld, "Failed to send recovery cmd %d\n", ret);
		return;
	}

	if (flags & ERROR_RECOVERY_UPDATE_DB) {
		struct iwl_rx_packet *pkt = cmd.resp_pkt;
		u32 pkt_len = iwl_rx_packet_payload_len(pkt);
		u32 resp;

		if (IWL_FW_CHECK(mld, pkt_len != sizeof(resp),
				 "Unexpected recovery cmd response size %u (expected %zu)\n",
				 pkt_len, sizeof(resp)))
			goto out;

		resp = le32_to_cpup((__le32 *)cmd.resp_pkt->data);
		if (!resp)
			goto out;

		IWL_ERR(mld,
			"Failed to send recovery cmd blob was invalid %d\n",
			resp);

		ieee80211_iterate_interfaces(mld->hw, 0,
					     iwl_mld_restart_disconnect_iter,
					     NULL);
	}

out:
	iwl_free_resp(&cmd);
}

static int iwl_mld_config_fw(struct iwl_mld *mld)
{
	int ret;

	lockdep_assert_wiphy(mld->wiphy);

	iwl_fw_disable_dbg_asserts(&mld->fwrt);
	iwl_get_shared_mem_conf(&mld->fwrt);

	ret = iwl_mld_send_tx_ant_cfg(mld);
	if (ret)
		return ret;

	ret = iwl_mld_send_bt_init_conf(mld);
	if (ret)
		return ret;

	ret = iwl_set_soc_latency(&mld->fwrt);
	if (ret)
		return ret;

	iwl_mld_configure_lari(mld);

	ret = iwl_mld_config_temp_report_ths(mld);
	if (ret)
		return ret;

#ifdef CONFIG_THERMAL
	ret = iwl_mld_config_ctdp(mld, mld->cooling_dev.cur_state,
				  CTDP_CMD_OPERATION_START);
	if (ret)
		return ret;
#endif

	ret = iwl_configure_rxq(&mld->fwrt);
	if (ret)
		return ret;

	ret = iwl_mld_send_rss_cfg_cmd(mld);
	if (ret)
		return ret;

	ret = iwl_mld_config_scan(mld);
	if (ret)
		return ret;

	ret = iwl_mld_update_device_power(mld, false);
	if (ret)
		return ret;

	if (mld->fw_status.in_hw_restart) {
		iwl_mld_send_recovery_cmd(mld, ERROR_RECOVERY_UPDATE_DB);
		iwl_mld_time_sync_fw_config(mld);
	}

	iwl_mld_led_config_fw(mld);

	ret = iwl_mld_init_ppag(mld);
	if (ret)
		return ret;

	ret = iwl_mld_init_sar(mld);
	if (ret)
		return ret;

	ret = iwl_mld_init_sgom(mld);
	if (ret)
		return ret;

	iwl_mld_init_tas(mld);
	iwl_mld_init_uats(mld);

	return 0;
}

int iwl_mld_start_fw(struct iwl_mld *mld)
{
	int ret;

	lockdep_assert_wiphy(mld->wiphy);

	ret = iwl_mld_load_fw(mld);
	if (IWL_FW_CHECK(mld, ret, "Failed to start firmware %d\n", ret)) {
		iwl_fw_dbg_error_collect(&mld->fwrt, FW_DBG_TRIGGER_DRIVER);
		return ret;
	}

	IWL_DEBUG_INFO(mld, "uCode started.\n");

	ret = iwl_mld_config_fw(mld);
	if (ret)
		goto error;

	ret = iwl_mld_init_mcc(mld);
	if (ret)
		goto error;

	return 0;

error:
	iwl_mld_stop_fw(mld);
	return ret;
}