/*
 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <linux/moduleparam.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>

#include "wil6210.h"
#include "txrx.h"
#include "wmi.h"
#include "trace.h"

/* set the default max assoc sta to max supported by driver */
uint max_assoc_sta = WIL6210_MAX_CID;
module_param(max_assoc_sta, uint, 0444);
MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");

int agg_wsize; /* = 0; */
module_param(agg_wsize, int, 0644);
MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
                 " 0 - use default; < 0 - don't auto-establish");

u8 led_id = WIL_LED_INVALID_ID;
module_param(led_id, byte, 0444);
MODULE_PARM_DESC(led_id,
                 " 60G device led enablement. Set the led ID (0-2) to enable");

#define WIL_WAIT_FOR_SUSPEND_RESUME_COMP 200
#define WIL_WMI_CALL_GENERAL_TO_MS 100
#define WIL_WMI_PCP_STOP_TO_MS 5000

/**
 * WMI event receiving - theory of operations
 *
 * When firmware about to report WMI event, it fills memory area
 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
 *
 * @wmi_recv_cmd reads event, allocates memory chunk  and attaches it to the
 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
 * and handles events within the @wmi_event_worker. Every event get detached
 * from list, processed and deleted.
 *
 * Purpose for this mechanism is to release IRQ thread; otherwise,
 * if WMI event handling involves another WMI command flow, this 2-nd flow
 * won't be completed because of blocked IRQ thread.
 */

/**
 * Addressing - theory of operations
 *
 * There are several buses present on the WIL6210 card.
 * Same memory areas are visible at different address on
 * the different busses. There are 3 main bus masters:
 *  - MAC CPU (ucode)
 *  - User CPU (firmware)
 *  - AHB (host)
 *
 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
 * AHB addresses starting from 0x880000
 *
 * Internally, firmware uses addresses that allow faster access but
 * are invisible from the host. To read from these addresses, alternative
 * AHB address must be used.
 */

/**
 * @sparrow_fw_mapping provides memory remapping table for sparrow
 *
 * array size should be in sync with the declaration in the wil6210.h
 *
 * Sparrow memory mapping:
 * Linker address         PCI/Host address
 *                        0x880000 .. 0xa80000  2Mb BAR0
 * 0x800000 .. 0x808000   0x900000 .. 0x908000  32k DCCM
 * 0x840000 .. 0x860000   0x908000 .. 0x928000  128k PERIPH
 */
const struct fw_map sparrow_fw_mapping[] = {
        /* FW code RAM 256k */
        {0x000000, 0x040000, 0x8c0000, "fw_code", true, true},
        /* FW data RAM 32k */
        {0x800000, 0x808000, 0x900000, "fw_data", true, true},
        /* periph data 128k */
        {0x840000, 0x860000, 0x908000, "fw_peri", true, true},
        /* various RGF 40k */
        {0x880000, 0x88a000, 0x880000, "rgf", true, true},
        /* AGC table   4k */
        {0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true, true},
        /* Pcie_ext_rgf 4k */
        {0x88b000, 0x88c000, 0x88b000, "rgf_ext", true, true},
        /* mac_ext_rgf 512b */
        {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext", true, true},
        /* upper area 548k */
        {0x8c0000, 0x949000, 0x8c0000, "upper", true, true},
        /* UCODE areas - accessible by debugfs blobs but not by
         * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas!
         */
        /* ucode code RAM 128k */
        {0x000000, 0x020000, 0x920000, "uc_code", false, false},
        /* ucode data RAM 16k */
        {0x800000, 0x804000, 0x940000, "uc_data", false, false},
};

/**
 * @sparrow_d0_mac_rgf_ext - mac_rgf_ext section for Sparrow D0
 * it is a bit larger to support extra features
 */
const struct fw_map sparrow_d0_mac_rgf_ext = {
        0x88c000, 0x88c500, 0x88c000, "mac_rgf_ext", true, true
};

/**
 * @talyn_fw_mapping provides memory remapping table for Talyn
 *
 * array size should be in sync with the declaration in the wil6210.h
 *
 * Talyn memory mapping:
 * Linker address         PCI/Host address
 *                        0x880000 .. 0xc80000  4Mb BAR0
 * 0x800000 .. 0x820000   0xa00000 .. 0xa20000  128k DCCM
 * 0x840000 .. 0x858000   0xa20000 .. 0xa38000  96k PERIPH
 */
const struct fw_map talyn_fw_mapping[] = {
        /* FW code RAM 1M */
        {0x000000, 0x100000, 0x900000, "fw_code", true, true},
        /* FW data RAM 128k */
        {0x800000, 0x820000, 0xa00000, "fw_data", true, true},
        /* periph. data RAM 96k */
        {0x840000, 0x858000, 0xa20000, "fw_peri", true, true},
        /* various RGF 40k */
        {0x880000, 0x88a000, 0x880000, "rgf", true, true},
        /* AGC table 4k */
        {0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true, true},
        /* Pcie_ext_rgf 4k */
        {0x88b000, 0x88c000, 0x88b000, "rgf_ext", true, true},
        /* mac_ext_rgf 1344b */
        {0x88c000, 0x88c540, 0x88c000, "mac_rgf_ext", true, true},
        /* ext USER RGF 4k */
        {0x88d000, 0x88e000, 0x88d000, "ext_user_rgf", true, true},
        /* OTP 4k */
        {0x8a0000, 0x8a1000, 0x8a0000, "otp", true, false},
        /* DMA EXT RGF 64k */
        {0x8b0000, 0x8c0000, 0x8b0000, "dma_ext_rgf", true, true},
        /* upper area 1536k */
        {0x900000, 0xa80000, 0x900000, "upper", true, true},
        /* UCODE areas - accessible by debugfs blobs but not by
         * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas!
         */
        /* ucode code RAM 256k */
        {0x000000, 0x040000, 0xa38000, "uc_code", false, false},
        /* ucode data RAM 32k */
        {0x800000, 0x808000, 0xa78000, "uc_data", false, false},
};

/**
 * @talyn_mb_fw_mapping provides memory remapping table for Talyn-MB
 *
 * array size should be in sync with the declaration in the wil6210.h
 *
 * Talyn MB memory mapping:
 * Linker address         PCI/Host address
 *                        0x880000 .. 0xc80000  4Mb BAR0
 * 0x800000 .. 0x820000   0xa00000 .. 0xa20000  128k DCCM
 * 0x840000 .. 0x858000   0xa20000 .. 0xa38000  96k PERIPH
 */
const struct fw_map talyn_mb_fw_mapping[] = {
        /* FW code RAM 768k */
        {0x000000, 0x0c0000, 0x900000, "fw_code", true, true},
        /* FW data RAM 128k */
        {0x800000, 0x820000, 0xa00000, "fw_data", true, true},
        /* periph. data RAM 96k */
        {0x840000, 0x858000, 0xa20000, "fw_peri", true, true},
        /* various RGF 40k */
        {0x880000, 0x88a000, 0x880000, "rgf", true, true},
        /* AGC table 4k */
        {0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true, true},
        /* Pcie_ext_rgf 4k */
        {0x88b000, 0x88c000, 0x88b000, "rgf_ext", true, true},
        /* mac_ext_rgf 2256b */
        {0x88c000, 0x88c8d0, 0x88c000, "mac_rgf_ext", true, true},
        /* ext USER RGF 4k */
        {0x88d000, 0x88e000, 0x88d000, "ext_user_rgf", true, true},
        /* SEC PKA 16k */
        {0x890000, 0x894000, 0x890000, "sec_pka", true, true},
        /* SEC KDF RGF 3096b */
        {0x898000, 0x898c18, 0x898000, "sec_kdf_rgf", true, true},
        /* SEC MAIN 2124b */
        {0x89a000, 0x89a84c, 0x89a000, "sec_main", true, true},
        /* OTP 4k */
        {0x8a0000, 0x8a1000, 0x8a0000, "otp", true, false},
        /* DMA EXT RGF 64k */
        {0x8b0000, 0x8c0000, 0x8b0000, "dma_ext_rgf", true, true},
        /* DUM USER RGF 528b */
        {0x8c0000, 0x8c0210, 0x8c0000, "dum_user_rgf", true, true},
        /* DMA OFU 296b */
        {0x8c2000, 0x8c2128, 0x8c2000, "dma_ofu", true, true},
        /* ucode debug 4k */
        {0x8c3000, 0x8c4000, 0x8c3000, "ucode_debug", true, true},
        /* upper area 1536k */
        {0x900000, 0xa80000, 0x900000, "upper", true, true},
        /* UCODE areas - accessible by debugfs blobs but not by
         * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas!
         */
        /* ucode code RAM 256k */
        {0x000000, 0x040000, 0xa38000, "uc_code", false, false},
        /* ucode data RAM 32k */
        {0x800000, 0x808000, 0xa78000, "uc_data", false, false},
};

struct fw_map fw_mapping[MAX_FW_MAPPING_TABLE_SIZE];

struct blink_on_off_time led_blink_time[] = {
        {WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS},
        {WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS},
        {WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS},
};

struct auth_no_hdr {
        __le16 auth_alg;
        __le16 auth_transaction;
        __le16 status_code;
        /* possibly followed by Challenge text */
        u8 variable[0];
} __packed;

u8 led_polarity = LED_POLARITY_LOW_ACTIVE;

/**
 * return AHB address for given firmware internal (linker) address
 * @x - internal address
 * If address have no valid AHB mapping, return 0
 */
static u32 wmi_addr_remap(u32 x)
{
        uint i;

        for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
                if (fw_mapping[i].fw &&
                    ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)))
                        return x + fw_mapping[i].host - fw_mapping[i].from;
        }

        return 0;
}

/**
 * find fw_mapping entry by section name
 * @section - section name
 *
 * Return pointer to section or NULL if not found
 */
struct fw_map *wil_find_fw_mapping(const char *section)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(fw_mapping); i++)
                if (fw_mapping[i].name &&
                    !strcmp(section, fw_mapping[i].name))
                        return &fw_mapping[i];

        return NULL;
}

/**
 * Check address validity for WMI buffer; remap if needed
 * @ptr - internal (linker) fw/ucode address
 * @size - if non zero, validate the block does not
 *  exceed the device memory (bar)
 *
 * Valid buffer should be DWORD aligned
 *
 * return address for accessing buffer from the host;
 * if buffer is not valid, return NULL.
 */
void __iomem *wmi_buffer_block(struct wil6210_priv *wil, __le32 ptr_, u32 size)
{
        u32 off;
        u32 ptr = le32_to_cpu(ptr_);

        if (ptr % 4)
                return NULL;

        ptr = wmi_addr_remap(ptr);
        if (ptr < WIL6210_FW_HOST_OFF)
                return NULL;

        off = HOSTADDR(ptr);
        if (off > wil->bar_size - 4)
                return NULL;
        if (size && ((off + size > wil->bar_size) || (off + size < off)))
                return NULL;

        return wil->csr + off;
}

void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
{
        return wmi_buffer_block(wil, ptr_, 0);
}

/**
 * Check address validity
 */
void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
{
        u32 off;

        if (ptr % 4)
                return NULL;

        if (ptr < WIL6210_FW_HOST_OFF)
                return NULL;

        off = HOSTADDR(ptr);
        if (off > wil->bar_size - 4)
                return NULL;

        return wil->csr + off;
}

int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
                 struct wil6210_mbox_hdr *hdr)
{
        void __iomem *src = wmi_buffer(wil, ptr);

        if (!src)
                return -EINVAL;

        wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));

        return 0;
}

static const char *cmdid2name(u16 cmdid)
{
        switch (cmdid) {
        case WMI_NOTIFY_REQ_CMDID:
                return "WMI_NOTIFY_REQ_CMD";
        case WMI_START_SCAN_CMDID:
                return "WMI_START_SCAN_CMD";
        case WMI_CONNECT_CMDID:
                return "WMI_CONNECT_CMD";
        case WMI_DISCONNECT_CMDID:
                return "WMI_DISCONNECT_CMD";
        case WMI_SW_TX_REQ_CMDID:
                return "WMI_SW_TX_REQ_CMD";
        case WMI_GET_RF_SECTOR_PARAMS_CMDID:
                return "WMI_GET_RF_SECTOR_PARAMS_CMD";
        case WMI_SET_RF_SECTOR_PARAMS_CMDID:
                return "WMI_SET_RF_SECTOR_PARAMS_CMD";
        case WMI_GET_SELECTED_RF_SECTOR_INDEX_CMDID:
                return "WMI_GET_SELECTED_RF_SECTOR_INDEX_CMD";
        case WMI_SET_SELECTED_RF_SECTOR_INDEX_CMDID:
                return "WMI_SET_SELECTED_RF_SECTOR_INDEX_CMD";
        case WMI_BRP_SET_ANT_LIMIT_CMDID:
                return "WMI_BRP_SET_ANT_LIMIT_CMD";
        case WMI_TOF_SESSION_START_CMDID:
                return "WMI_TOF_SESSION_START_CMD";
        case WMI_AOA_MEAS_CMDID:
                return "WMI_AOA_MEAS_CMD";
        case WMI_PMC_CMDID:
                return "WMI_PMC_CMD";
        case WMI_TOF_GET_TX_RX_OFFSET_CMDID:
                return "WMI_TOF_GET_TX_RX_OFFSET_CMD";
        case WMI_TOF_SET_TX_RX_OFFSET_CMDID:
                return "WMI_TOF_SET_TX_RX_OFFSET_CMD";
        case WMI_VRING_CFG_CMDID:
                return "WMI_VRING_CFG_CMD";
        case WMI_BCAST_VRING_CFG_CMDID:
                return "WMI_BCAST_VRING_CFG_CMD";
        case WMI_TRAFFIC_SUSPEND_CMDID:
                return "WMI_TRAFFIC_SUSPEND_CMD";
        case WMI_TRAFFIC_RESUME_CMDID:
                return "WMI_TRAFFIC_RESUME_CMD";
        case WMI_ECHO_CMDID:
                return "WMI_ECHO_CMD";
        case WMI_SET_MAC_ADDRESS_CMDID:
                return "WMI_SET_MAC_ADDRESS_CMD";
        case WMI_LED_CFG_CMDID:
                return "WMI_LED_CFG_CMD";
        case WMI_PCP_START_CMDID:
                return "WMI_PCP_START_CMD";
        case WMI_PCP_STOP_CMDID:
                return "WMI_PCP_STOP_CMD";
        case WMI_SET_SSID_CMDID:
                return "WMI_SET_SSID_CMD";
        case WMI_GET_SSID_CMDID:
                return "WMI_GET_SSID_CMD";
        case WMI_SET_PCP_CHANNEL_CMDID:
                return "WMI_SET_PCP_CHANNEL_CMD";
        case WMI_GET_PCP_CHANNEL_CMDID:
                return "WMI_GET_PCP_CHANNEL_CMD";
        case WMI_P2P_CFG_CMDID:
                return "WMI_P2P_CFG_CMD";
        case WMI_PORT_ALLOCATE_CMDID:
                return "WMI_PORT_ALLOCATE_CMD";
        case WMI_PORT_DELETE_CMDID:
                return "WMI_PORT_DELETE_CMD";
        case WMI_START_LISTEN_CMDID:
                return "WMI_START_LISTEN_CMD";
        case WMI_START_SEARCH_CMDID:
                return "WMI_START_SEARCH_CMD";
        case WMI_DISCOVERY_STOP_CMDID:
                return "WMI_DISCOVERY_STOP_CMD";
        case WMI_DELETE_CIPHER_KEY_CMDID:
                return "WMI_DELETE_CIPHER_KEY_CMD";
        case WMI_ADD_CIPHER_KEY_CMDID:
                return "WMI_ADD_CIPHER_KEY_CMD";
        case WMI_SET_APPIE_CMDID:
                return "WMI_SET_APPIE_CMD";
        case WMI_CFG_RX_CHAIN_CMDID:
                return "WMI_CFG_RX_CHAIN_CMD";
        case WMI_TEMP_SENSE_CMDID:
                return "WMI_TEMP_SENSE_CMD";
        case WMI_DEL_STA_CMDID:
                return "WMI_DEL_STA_CMD";
        case WMI_DISCONNECT_STA_CMDID:
                return "WMI_DISCONNECT_STA_CMD";
        case WMI_RING_BA_EN_CMDID:
                return "WMI_RING_BA_EN_CMD";
        case WMI_RING_BA_DIS_CMDID:
                return "WMI_RING_BA_DIS_CMD";
        case WMI_RCP_DELBA_CMDID:
                return "WMI_RCP_DELBA_CMD";
        case WMI_RCP_ADDBA_RESP_CMDID:
                return "WMI_RCP_ADDBA_RESP_CMD";
        case WMI_RCP_ADDBA_RESP_EDMA_CMDID:
                return "WMI_RCP_ADDBA_RESP_EDMA_CMD";
        case WMI_PS_DEV_PROFILE_CFG_CMDID:
                return "WMI_PS_DEV_PROFILE_CFG_CMD";
        case WMI_SET_MGMT_RETRY_LIMIT_CMDID:
                return "WMI_SET_MGMT_RETRY_LIMIT_CMD";
        case WMI_GET_MGMT_RETRY_LIMIT_CMDID:
                return "WMI_GET_MGMT_RETRY_LIMIT_CMD";
        case WMI_ABORT_SCAN_CMDID:
                return "WMI_ABORT_SCAN_CMD";
        case WMI_NEW_STA_CMDID:
                return "WMI_NEW_STA_CMD";
        case WMI_SET_THERMAL_THROTTLING_CFG_CMDID:
                return "WMI_SET_THERMAL_THROTTLING_CFG_CMD";
        case WMI_GET_THERMAL_THROTTLING_CFG_CMDID:
                return "WMI_GET_THERMAL_THROTTLING_CFG_CMD";
        case WMI_LINK_MAINTAIN_CFG_WRITE_CMDID:
                return "WMI_LINK_MAINTAIN_CFG_WRITE_CMD";
        case WMI_LO_POWER_CALIB_FROM_OTP_CMDID:
                return "WMI_LO_POWER_CALIB_FROM_OTP_CMD";
        case WMI_START_SCHED_SCAN_CMDID:
                return "WMI_START_SCHED_SCAN_CMD";
        case WMI_STOP_SCHED_SCAN_CMDID:
                return "WMI_STOP_SCHED_SCAN_CMD";
        case WMI_TX_STATUS_RING_ADD_CMDID:
                return "WMI_TX_STATUS_RING_ADD_CMD";
        case WMI_RX_STATUS_RING_ADD_CMDID:
                return "WMI_RX_STATUS_RING_ADD_CMD";
        case WMI_TX_DESC_RING_ADD_CMDID:
                return "WMI_TX_DESC_RING_ADD_CMD";
        case WMI_RX_DESC_RING_ADD_CMDID:
                return "WMI_RX_DESC_RING_ADD_CMD";
        case WMI_BCAST_DESC_RING_ADD_CMDID:
                return "WMI_BCAST_DESC_RING_ADD_CMD";
        case WMI_CFG_DEF_RX_OFFLOAD_CMDID:
                return "WMI_CFG_DEF_RX_OFFLOAD_CMD";
        case WMI_LINK_STATS_CMDID:
                return "WMI_LINK_STATS_CMD";
        case WMI_SW_TX_REQ_EXT_CMDID:
                return "WMI_SW_TX_REQ_EXT_CMDID";
        case WMI_FT_AUTH_CMDID:
                return "WMI_FT_AUTH_CMD";
        case WMI_FT_REASSOC_CMDID:
                return "WMI_FT_REASSOC_CMD";
        case WMI_UPDATE_FT_IES_CMDID:
                return "WMI_UPDATE_FT_IES_CMD";
        default:
                return "Untracked CMD";
        }
}

static const char *eventid2name(u16 eventid)
{
        switch (eventid) {
        case WMI_NOTIFY_REQ_DONE_EVENTID:
                return "WMI_NOTIFY_REQ_DONE_EVENT";
        case WMI_DISCONNECT_EVENTID:
                return "WMI_DISCONNECT_EVENT";
        case WMI_SW_TX_COMPLETE_EVENTID:
                return "WMI_SW_TX_COMPLETE_EVENT";
        case WMI_GET_RF_SECTOR_PARAMS_DONE_EVENTID:
                return "WMI_GET_RF_SECTOR_PARAMS_DONE_EVENT";
        case WMI_SET_RF_SECTOR_PARAMS_DONE_EVENTID:
                return "WMI_SET_RF_SECTOR_PARAMS_DONE_EVENT";
        case WMI_GET_SELECTED_RF_SECTOR_INDEX_DONE_EVENTID:
                return "WMI_GET_SELECTED_RF_SECTOR_INDEX_DONE_EVENT";
        case WMI_SET_SELECTED_RF_SECTOR_INDEX_DONE_EVENTID:
                return "WMI_SET_SELECTED_RF_SECTOR_INDEX_DONE_EVENT";
        case WMI_BRP_SET_ANT_LIMIT_EVENTID:
                return "WMI_BRP_SET_ANT_LIMIT_EVENT";
        case WMI_FW_READY_EVENTID:
                return "WMI_FW_READY_EVENT";
        case WMI_TRAFFIC_RESUME_EVENTID:
                return "WMI_TRAFFIC_RESUME_EVENT";
        case WMI_TOF_GET_TX_RX_OFFSET_EVENTID:
                return "WMI_TOF_GET_TX_RX_OFFSET_EVENT";
        case WMI_TOF_SET_TX_RX_OFFSET_EVENTID:
                return "WMI_TOF_SET_TX_RX_OFFSET_EVENT";
        case WMI_VRING_CFG_DONE_EVENTID:
                return "WMI_VRING_CFG_DONE_EVENT";
        case WMI_READY_EVENTID:
                return "WMI_READY_EVENT";
        case WMI_RX_MGMT_PACKET_EVENTID:
                return "WMI_RX_MGMT_PACKET_EVENT";
        case WMI_TX_MGMT_PACKET_EVENTID:
                return "WMI_TX_MGMT_PACKET_EVENT";
        case WMI_SCAN_COMPLETE_EVENTID:
                return "WMI_SCAN_COMPLETE_EVENT";
        case WMI_ACS_PASSIVE_SCAN_COMPLETE_EVENTID:
                return "WMI_ACS_PASSIVE_SCAN_COMPLETE_EVENT";
        case WMI_CONNECT_EVENTID:
                return "WMI_CONNECT_EVENT";
        case WMI_EAPOL_RX_EVENTID:
                return "WMI_EAPOL_RX_EVENT";
        case WMI_BA_STATUS_EVENTID:
                return "WMI_BA_STATUS_EVENT";
        case WMI_RCP_ADDBA_REQ_EVENTID:
                return "WMI_RCP_ADDBA_REQ_EVENT";
        case WMI_DELBA_EVENTID:
                return "WMI_DELBA_EVENT";
        case WMI_RING_EN_EVENTID:
                return "WMI_RING_EN_EVENT";
        case WMI_DATA_PORT_OPEN_EVENTID:
                return "WMI_DATA_PORT_OPEN_EVENT";
        case WMI_AOA_MEAS_EVENTID:
                return "WMI_AOA_MEAS_EVENT";
        case WMI_TOF_SESSION_END_EVENTID:
                return "WMI_TOF_SESSION_END_EVENT";
        case WMI_TOF_GET_CAPABILITIES_EVENTID:
                return "WMI_TOF_GET_CAPABILITIES_EVENT";
        case WMI_TOF_SET_LCR_EVENTID:
                return "WMI_TOF_SET_LCR_EVENT";
        case WMI_TOF_SET_LCI_EVENTID:
                return "WMI_TOF_SET_LCI_EVENT";
        case WMI_TOF_FTM_PER_DEST_RES_EVENTID:
                return "WMI_TOF_FTM_PER_DEST_RES_EVENT";
        case WMI_TOF_CHANNEL_INFO_EVENTID:
                return "WMI_TOF_CHANNEL_INFO_EVENT";
        case WMI_TRAFFIC_SUSPEND_EVENTID:
                return "WMI_TRAFFIC_SUSPEND_EVENT";
        case WMI_ECHO_RSP_EVENTID:
                return "WMI_ECHO_RSP_EVENT";
        case WMI_LED_CFG_DONE_EVENTID:
                return "WMI_LED_CFG_DONE_EVENT";
        case WMI_PCP_STARTED_EVENTID:
                return "WMI_PCP_STARTED_EVENT";
        case WMI_PCP_STOPPED_EVENTID:
                return "WMI_PCP_STOPPED_EVENT";
        case WMI_GET_SSID_EVENTID:
                return "WMI_GET_SSID_EVENT";
        case WMI_GET_PCP_CHANNEL_EVENTID:
                return "WMI_GET_PCP_CHANNEL_EVENT";
        case WMI_P2P_CFG_DONE_EVENTID:
                return "WMI_P2P_CFG_DONE_EVENT";
        case WMI_PORT_ALLOCATED_EVENTID:
                return "WMI_PORT_ALLOCATED_EVENT";
        case WMI_PORT_DELETED_EVENTID:
                return "WMI_PORT_DELETED_EVENT";
        case WMI_LISTEN_STARTED_EVENTID:
                return "WMI_LISTEN_STARTED_EVENT";
        case WMI_SEARCH_STARTED_EVENTID:
                return "WMI_SEARCH_STARTED_EVENT";
        case WMI_DISCOVERY_STOPPED_EVENTID:
                return "WMI_DISCOVERY_STOPPED_EVENT";
        case WMI_CFG_RX_CHAIN_DONE_EVENTID:
                return "WMI_CFG_RX_CHAIN_DONE_EVENT";
        case WMI_TEMP_SENSE_DONE_EVENTID:
                return "WMI_TEMP_SENSE_DONE_EVENT";
        case WMI_RCP_ADDBA_RESP_SENT_EVENTID:
                return "WMI_RCP_ADDBA_RESP_SENT_EVENT";
        case WMI_PS_DEV_PROFILE_CFG_EVENTID:
                return "WMI_PS_DEV_PROFILE_CFG_EVENT";
        case WMI_SET_MGMT_RETRY_LIMIT_EVENTID:
                return "WMI_SET_MGMT_RETRY_LIMIT_EVENT";
        case WMI_GET_MGMT_RETRY_LIMIT_EVENTID:
                return "WMI_GET_MGMT_RETRY_LIMIT_EVENT";
        case WMI_SET_THERMAL_THROTTLING_CFG_EVENTID:
                return "WMI_SET_THERMAL_THROTTLING_CFG_EVENT";
        case WMI_GET_THERMAL_THROTTLING_CFG_EVENTID:
                return "WMI_GET_THERMAL_THROTTLING_CFG_EVENT";
        case WMI_LINK_MAINTAIN_CFG_WRITE_DONE_EVENTID:
                return "WMI_LINK_MAINTAIN_CFG_WRITE_DONE_EVENT";
        case WMI_LO_POWER_CALIB_FROM_OTP_EVENTID:
                return "WMI_LO_POWER_CALIB_FROM_OTP_EVENT";
        case WMI_START_SCHED_SCAN_EVENTID:
                return "WMI_START_SCHED_SCAN_EVENT";
        case WMI_STOP_SCHED_SCAN_EVENTID:
                return "WMI_STOP_SCHED_SCAN_EVENT";
        case WMI_SCHED_SCAN_RESULT_EVENTID:
                return "WMI_SCHED_SCAN_RESULT_EVENT";
        case WMI_TX_STATUS_RING_CFG_DONE_EVENTID:
                return "WMI_TX_STATUS_RING_CFG_DONE_EVENT";
        case WMI_RX_STATUS_RING_CFG_DONE_EVENTID:
                return "WMI_RX_STATUS_RING_CFG_DONE_EVENT";
        case WMI_TX_DESC_RING_CFG_DONE_EVENTID:
                return "WMI_TX_DESC_RING_CFG_DONE_EVENT";
        case WMI_RX_DESC_RING_CFG_DONE_EVENTID:
                return "WMI_RX_DESC_RING_CFG_DONE_EVENT";
        case WMI_CFG_DEF_RX_OFFLOAD_DONE_EVENTID:
                return "WMI_CFG_DEF_RX_OFFLOAD_DONE_EVENT";
        case WMI_LINK_STATS_CONFIG_DONE_EVENTID:
                return "WMI_LINK_STATS_CONFIG_DONE_EVENT";
        case WMI_LINK_STATS_EVENTID:
                return "WMI_LINK_STATS_EVENT";
        case WMI_COMMAND_NOT_SUPPORTED_EVENTID:
                return "WMI_COMMAND_NOT_SUPPORTED_EVENT";
        case WMI_FT_AUTH_STATUS_EVENTID:
                return "WMI_FT_AUTH_STATUS_EVENT";
        case WMI_FT_REASSOC_STATUS_EVENTID:
                return "WMI_FT_REASSOC_STATUS_EVENT";
        default:
                return "Untracked EVENT";
        }
}

static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, u8 mid,
                      void *buf, u16 len)
{
        struct {
                struct wil6210_mbox_hdr hdr;
                struct wmi_cmd_hdr wmi;
        } __packed cmd = {
                .hdr = {
                        .type = WIL_MBOX_HDR_TYPE_WMI,
                        .flags = 0,
                        .len = cpu_to_le16(sizeof(cmd.wmi) + len),
                },
                .wmi = {
                        .mid = mid,
                        .command_id = cpu_to_le16(cmdid),
                },
        };
        struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
        struct wil6210_mbox_ring_desc d_head;
        u32 next_head;
        void __iomem *dst;
        void __iomem *head = wmi_addr(wil, r->head);
        uint retry;
        int rc = 0;

        if (len > r->entry_size - sizeof(cmd)) {
                wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
                        (int)(sizeof(cmd) + len), r->entry_size);
                return -ERANGE;
        }

        might_sleep();

        if (!test_bit(wil_status_fwready, wil->status)) {
                wil_err(wil, "WMI: cannot send command while FW not ready\n");
                return -EAGAIN;
        }

        /* Allow sending only suspend / resume commands during susepnd flow */
        if ((test_bit(wil_status_suspending, wil->status) ||
             test_bit(wil_status_suspended, wil->status) ||
             test_bit(wil_status_resuming, wil->status)) &&
             ((cmdid != WMI_TRAFFIC_SUSPEND_CMDID) &&
              (cmdid != WMI_TRAFFIC_RESUME_CMDID))) {
                wil_err(wil, "WMI: reject send_command during suspend\n");
                return -EINVAL;
        }

        if (!head) {
                wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
                return -EINVAL;
        }

        wil_halp_vote(wil);

        /* read Tx head till it is not busy */
        for (retry = 5; retry > 0; retry--) {
                wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
                if (d_head.sync == 0)
                        break;
                msleep(20);
        }
        if (d_head.sync != 0) {
                wil_err(wil, "WMI head busy\n");
                rc = -EBUSY;
                goto out;
        }
        /* next head */
        next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
        wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
        /* wait till FW finish with previous command */
        for (retry = 5; retry > 0; retry--) {
                if (!test_bit(wil_status_fwready, wil->status)) {
                        wil_err(wil, "WMI: cannot send command while FW not ready\n");
                        rc = -EAGAIN;
                        goto out;
                }
                r->tail = wil_r(wil, RGF_MBOX +
                                offsetof(struct wil6210_mbox_ctl, tx.tail));
                if (next_head != r->tail)
                        break;
                msleep(20);
        }
        if (next_head == r->tail) {
                wil_err(wil, "WMI ring full\n");
                rc = -EBUSY;
                goto out;
        }
        dst = wmi_buffer(wil, d_head.addr);
        if (!dst) {
                wil_err(wil, "invalid WMI buffer: 0x%08x\n",
                        le32_to_cpu(d_head.addr));
                rc = -EAGAIN;
                goto out;
        }
        cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
        /* set command */
        wil_dbg_wmi(wil, "sending %s (0x%04x) [%d] mid %d\n",
                    cmdid2name(cmdid), cmdid, len, mid);
        wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
                         sizeof(cmd), true);
        wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
                         len, true);
        wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
        wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
        /* mark entry as full */
        wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
        /* advance next ptr */
        wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
              r->head = next_head);

        trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);

        /* interrupt to FW */
        wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
              SW_INT_MBOX);

out:
        wil_halp_unvote(wil);
        return rc;
}

int wmi_send(struct wil6210_priv *wil, u16 cmdid, u8 mid, void *buf, u16 len)
{
        int rc;

        mutex_lock(&wil->wmi_mutex);
        rc = __wmi_send(wil, cmdid, mid, buf, len);
        mutex_unlock(&wil->wmi_mutex);

        return rc;
}

/*=== Event handlers ===*/
static void wmi_evt_ready(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wiphy *wiphy = wil_to_wiphy(wil);
        struct wmi_ready_event *evt = d;
        u8 fw_max_assoc_sta;

        wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n",
                 wil->fw_version, le32_to_cpu(evt->sw_version),
                 evt->mac, evt->numof_additional_mids);
        if (evt->numof_additional_mids + 1 < wil->max_vifs) {
                wil_err(wil, "FW does not support enough MIDs (need %d)",
                        wil->max_vifs - 1);
                return; /* FW load will fail after timeout */
        }
        /* ignore MAC address, we already have it from the boot loader */
        strlcpy(wiphy->fw_version, wil->fw_version, sizeof(wiphy->fw_version));

        if (len > offsetof(struct wmi_ready_event, rfc_read_calib_result)) {
                wil_dbg_wmi(wil, "rfc calibration result %d\n",
                            evt->rfc_read_calib_result);
                wil->fw_calib_result = evt->rfc_read_calib_result;
        }

        fw_max_assoc_sta = WIL6210_RX_DESC_MAX_CID;
        if (len > offsetof(struct wmi_ready_event, max_assoc_sta) &&
            evt->max_assoc_sta > 0) {
                fw_max_assoc_sta = evt->max_assoc_sta;
                wil_dbg_wmi(wil, "fw reported max assoc sta %d\n",
                            fw_max_assoc_sta);

                if (fw_max_assoc_sta > WIL6210_MAX_CID) {
                        wil_dbg_wmi(wil,
                                    "fw max assoc sta %d exceeds max driver supported %d\n",
                                    fw_max_assoc_sta, WIL6210_MAX_CID);
                        fw_max_assoc_sta = WIL6210_MAX_CID;
                }
        }

        max_assoc_sta = min_t(uint, max_assoc_sta, fw_max_assoc_sta);
        wil_dbg_wmi(wil, "setting max assoc sta to %d\n", max_assoc_sta);

        wil_set_recovery_state(wil, fw_recovery_idle);
        set_bit(wil_status_fwready, wil->status);
        /* let the reset sequence continue */
        complete(&wil->wmi_ready);
}

static void wmi_evt_rx_mgmt(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_rx_mgmt_packet_event *data = d;
        struct wiphy *wiphy = wil_to_wiphy(wil);
        struct ieee80211_mgmt *rx_mgmt_frame =
                        (struct ieee80211_mgmt *)data->payload;
        int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
        int ch_no;
        u32 freq;
        struct ieee80211_channel *channel;
        s32 signal;
        __le16 fc;
        u32 d_len;
        u16 d_status;

        if (flen < 0) {
                wil_err(wil, "MGMT Rx: short event, len %d\n", len);
                return;
        }

        d_len = le32_to_cpu(data->info.len);
        if (d_len != flen) {
                wil_err(wil,
                        "MGMT Rx: length mismatch, d_len %d should be %d\n",
                        d_len, flen);
                return;
        }

        ch_no = data->info.channel + 1;
        freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ);
        channel = ieee80211_get_channel(wiphy, freq);
        if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities))
                signal = 100 * data->info.rssi;
        else
                signal = data->info.sqi;
        d_status = le16_to_cpu(data->info.status);
        fc = rx_mgmt_frame->frame_control;

        wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d RSSI %d SQI %d%%\n",
                    data->info.channel, data->info.mcs, data->info.rssi,
                    data->info.sqi);
        wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
                    le16_to_cpu(fc));
        wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
                    data->info.qid, data->info.mid, data->info.cid);
        wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
                         d_len, true);

        if (!channel) {
                wil_err(wil, "Frame on unsupported channel\n");
                return;
        }

        if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
                struct cfg80211_bss *bss;
                u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
                u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
                u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
                const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
                size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
                                                 u.beacon.variable);
                wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
                wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
                wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
                wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
                                 ie_len, true);

                wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);

                bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
                                                d_len, signal, GFP_KERNEL);
                if (bss) {
                        wil_dbg_wmi(wil, "Added BSS %pM\n",
                                    rx_mgmt_frame->bssid);
                        cfg80211_put_bss(wiphy, bss);
                } else {
                        wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
                }
        } else {
                mutex_lock(&wil->vif_mutex);
                cfg80211_rx_mgmt(vif_to_radio_wdev(wil, vif), freq, signal,
                                 (void *)rx_mgmt_frame, d_len, 0);
                mutex_unlock(&wil->vif_mutex);
        }
}

static void wmi_evt_tx_mgmt(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wmi_tx_mgmt_packet_event *data = d;
        struct ieee80211_mgmt *mgmt_frame =
                        (struct ieee80211_mgmt *)data->payload;
        int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);

        wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
                         flen, true);
}

static void wmi_evt_scan_complete(struct wil6210_vif *vif, int id,
                                  void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);

        mutex_lock(&wil->vif_mutex);
        if (vif->scan_request) {
                struct wmi_scan_complete_event *data = d;
                int status = le32_to_cpu(data->status);
                struct cfg80211_scan_info info = {
                        .aborted = ((status != WMI_SCAN_SUCCESS) &&
                                (status != WMI_SCAN_ABORT_REJECTED)),
                };

                wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", status);
                wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
                             vif->scan_request, info.aborted);
                del_timer_sync(&vif->scan_timer);
                cfg80211_scan_done(vif->scan_request, &info);
                if (vif->mid == 0)
                        wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
                vif->scan_request = NULL;
                wake_up_interruptible(&wil->wq);
                if (vif->p2p.pending_listen_wdev) {
                        wil_dbg_misc(wil, "Scheduling delayed listen\n");
                        schedule_work(&vif->p2p.delayed_listen_work);
                }
        } else {
                wil_err(wil, "SCAN_COMPLETE while not scanning\n");
        }
        mutex_unlock(&wil->vif_mutex);
}

static void wmi_evt_connect(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct net_device *ndev = vif_to_ndev(vif);
        struct wireless_dev *wdev = vif_to_wdev(vif);
        struct wmi_connect_event *evt = d;
        int ch; /* channel number */
        struct station_info *sinfo;
        u8 *assoc_req_ie, *assoc_resp_ie;
        size_t assoc_req_ielen, assoc_resp_ielen;
        /* capinfo(u16) + listen_interval(u16) + IEs */
        const size_t assoc_req_ie_offset = sizeof(u16) * 2;
        /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
        const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
        int rc;

        if (len < sizeof(*evt)) {
                wil_err(wil, "Connect event too short : %d bytes\n", len);
                return;
        }
        if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
                   evt->assoc_resp_len) {
                wil_err(wil,
                        "Connect event corrupted : %d != %d + %d + %d + %d\n",
                        len, (int)sizeof(*evt), evt->beacon_ie_len,
                        evt->assoc_req_len, evt->assoc_resp_len);
                return;
        }
        if (evt->cid >= max_assoc_sta) {
                wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
                return;
        }

        ch = evt->channel + 1;
        wil_info(wil, "Connect %pM channel [%d] cid %d aid %d\n",
                 evt->bssid, ch, evt->cid, evt->aid);
        wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
                         evt->assoc_info, len - sizeof(*evt), true);

        /* figure out IE's */
        assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
                                        assoc_req_ie_offset];
        assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
        if (evt->assoc_req_len <= assoc_req_ie_offset) {
                assoc_req_ie = NULL;
                assoc_req_ielen = 0;
        }

        assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
                                         evt->assoc_req_len +
                                         assoc_resp_ie_offset];
        assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;

        if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
                assoc_resp_ie = NULL;
                assoc_resp_ielen = 0;
        }

        if (test_bit(wil_status_resetting, wil->status) ||
            !test_bit(wil_status_fwready, wil->status)) {
                wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
                        evt->cid);
                /* no need for cleanup, wil_reset will do that */
                return;
        }

        mutex_lock(&wil->mutex);

        if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
            (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
                if (!test_bit(wil_vif_fwconnecting, vif->status)) {
                        wil_err(wil, "Not in connecting state\n");
                        mutex_unlock(&wil->mutex);
                        return;
                }
                del_timer_sync(&vif->connect_timer);
        } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
                   (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
                if (wil->sta[evt->cid].status != wil_sta_unused) {
                        wil_err(wil, "AP: Invalid status %d for CID %d\n",
                                wil->sta[evt->cid].status, evt->cid);
                        mutex_unlock(&wil->mutex);
                        return;
                }
        }

        ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
        wil->sta[evt->cid].mid = vif->mid;
        wil->sta[evt->cid].status = wil_sta_conn_pending;

        rc = wil_ring_init_tx(vif, evt->cid);
        if (rc) {
                wil_err(wil, "config tx vring failed for CID %d, rc (%d)\n",
                        evt->cid, rc);
                wmi_disconnect_sta(vif, wil->sta[evt->cid].addr,
                                   WLAN_REASON_UNSPECIFIED, false);
        } else {
                wil_info(wil, "successful connection to CID %d\n", evt->cid);
        }

        if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
            (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
                if (rc) {
                        netif_carrier_off(ndev);
                        wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS);
                        wil_err(wil, "cfg80211_connect_result with failure\n");
                        cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
                                                NULL, 0,
                                                WLAN_STATUS_UNSPECIFIED_FAILURE,
                                                GFP_KERNEL);
                        goto out;
                } else {
                        struct wiphy *wiphy = wil_to_wiphy(wil);

                        cfg80211_ref_bss(wiphy, vif->bss);
                        cfg80211_connect_bss(ndev, evt->bssid, vif->bss,
                                             assoc_req_ie, assoc_req_ielen,
                                             assoc_resp_ie, assoc_resp_ielen,
                                             WLAN_STATUS_SUCCESS, GFP_KERNEL,
                                             NL80211_TIMEOUT_UNSPECIFIED);
                }
                vif->bss = NULL;
        } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
                   (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {

                if (rc) {
                        if (disable_ap_sme)
                                /* notify new_sta has failed */
                                cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL);
                        goto out;
                }

                sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
                if (!sinfo) {
                        rc = -ENOMEM;
                        goto out;
                }

                sinfo->generation = wil->sinfo_gen++;

                if (assoc_req_ie) {
                        sinfo->assoc_req_ies = assoc_req_ie;
                        sinfo->assoc_req_ies_len = assoc_req_ielen;
                }

                cfg80211_new_sta(ndev, evt->bssid, sinfo, GFP_KERNEL);

                kfree(sinfo);
        } else {
                wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype,
                        evt->cid);
                goto out;
        }

        wil->sta[evt->cid].status = wil_sta_connected;
        wil->sta[evt->cid].aid = evt->aid;
        if (!test_and_set_bit(wil_vif_fwconnected, vif->status))
                atomic_inc(&wil->connected_vifs);
        wil_update_net_queues_bh(wil, vif, NULL, false);

out:
        if (rc) {
                wil->sta[evt->cid].status = wil_sta_unused;
                wil->sta[evt->cid].mid = U8_MAX;
        }
        clear_bit(wil_vif_fwconnecting, vif->status);
        mutex_unlock(&wil->mutex);
}

static void wmi_evt_disconnect(struct wil6210_vif *vif, int id,
                               void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_disconnect_event *evt = d;
        u16 reason_code = le16_to_cpu(evt->protocol_reason_status);

        wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
                 evt->bssid, reason_code, evt->disconnect_reason);

        wil->sinfo_gen++;

        if (test_bit(wil_status_resetting, wil->status) ||
            !test_bit(wil_status_fwready, wil->status)) {
                wil_err(wil, "status_resetting, cancel disconnect event\n");
                /* no need for cleanup, wil_reset will do that */
                return;
        }

        mutex_lock(&wil->mutex);
        wil6210_disconnect_complete(vif, evt->bssid, reason_code);
        if (disable_ap_sme) {
                struct wireless_dev *wdev = vif_to_wdev(vif);
                struct net_device *ndev = vif_to_ndev(vif);

                /* disconnect event in disable_ap_sme mode means link loss */
                switch (wdev->iftype) {
                /* AP-like interface */
                case NL80211_IFTYPE_AP:
                case NL80211_IFTYPE_P2P_GO:
                        /* notify hostapd about link loss */
                        cfg80211_cqm_pktloss_notify(ndev, evt->bssid, 0,
                                                    GFP_KERNEL);
                        break;
                default:
                        break;
                }
        }
        mutex_unlock(&wil->mutex);
}

/*
 * Firmware reports EAPOL frame using WME event.
 * Reconstruct Ethernet frame and deliver it via normal Rx
 */
static void wmi_evt_eapol_rx(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct net_device *ndev = vif_to_ndev(vif);
        struct wmi_eapol_rx_event *evt = d;
        u16 eapol_len = le16_to_cpu(evt->eapol_len);
        int sz = eapol_len + ETH_HLEN;
        struct sk_buff *skb;
        struct ethhdr *eth;
        int cid;
        struct wil_net_stats *stats = NULL;

        wil_dbg_wmi(wil, "EAPOL len %d from %pM MID %d\n", eapol_len,
                    evt->src_mac, vif->mid);

        cid = wil_find_cid(wil, vif->mid, evt->src_mac);
        if (cid >= 0)
                stats = &wil->sta[cid].stats;

        if (eapol_len > 196) { /* TODO: revisit size limit */
                wil_err(wil, "EAPOL too large\n");
                return;
        }

        skb = alloc_skb(sz, GFP_KERNEL);
        if (!skb) {
                wil_err(wil, "Failed to allocate skb\n");
                return;
        }

        eth = skb_put(skb, ETH_HLEN);
        ether_addr_copy(eth->h_dest, ndev->dev_addr);
        ether_addr_copy(eth->h_source, evt->src_mac);
        eth->h_proto = cpu_to_be16(ETH_P_PAE);
        skb_put_data(skb, evt->eapol, eapol_len);
        skb->protocol = eth_type_trans(skb, ndev);
        if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
                ndev->stats.rx_packets++;
                ndev->stats.rx_bytes += sz;
                if (stats) {
                        stats->rx_packets++;
                        stats->rx_bytes += sz;
                }
        } else {
                ndev->stats.rx_dropped++;
                if (stats)
                        stats->rx_dropped++;
        }
}

static void wmi_evt_ring_en(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_ring_en_event *evt = d;
        u8 vri = evt->ring_index;
        struct wireless_dev *wdev = vif_to_wdev(vif);
        struct wil_sta_info *sta;
        u8 cid;
        struct key_params params;

        wil_dbg_wmi(wil, "Enable vring %d MID %d\n", vri, vif->mid);

        if (vri >= ARRAY_SIZE(wil->ring_tx)) {
                wil_err(wil, "Enable for invalid vring %d\n", vri);
                return;
        }

        if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme ||
            test_bit(wil_vif_ft_roam, vif->status))
                /* in AP mode with disable_ap_sme that is not FT,
                 * this is done by wil_cfg80211_change_station()
                 */
                wil->ring_tx_data[vri].dot1x_open = true;
        if (vri == vif->bcast_ring) /* no BA for bcast */
                return;

        cid = wil->ring2cid_tid[vri][0];
        if (!wil_cid_valid(cid)) {
                wil_err(wil, "invalid cid %d for vring %d\n", cid, vri);
                return;
        }

        /* In FT mode we get key but not store it as it is received
         * before WMI_CONNECT_EVENT received from FW.
         * wil_set_crypto_rx is called here to reset the security PN
         */
        sta = &wil->sta[cid];
        if (test_bit(wil_vif_ft_roam, vif->status)) {
                memset(&params, 0, sizeof(params));
                wil_set_crypto_rx(0, WMI_KEY_USE_PAIRWISE, sta, &params);
                if (wdev->iftype != NL80211_IFTYPE_AP)
                        clear_bit(wil_vif_ft_roam, vif->status);
        }

        if (agg_wsize >= 0)
                wil_addba_tx_request(wil, vri, agg_wsize);
}

static void wmi_evt_ba_status(struct wil6210_vif *vif, int id,
                              void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_ba_status_event *evt = d;
        struct wil_ring_tx_data *txdata;

        wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
                    evt->ringid,
                    evt->status == WMI_BA_AGREED ? "OK" : "N/A",
                    evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
                    evt->amsdu ? "+" : "-");

        if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
                wil_err(wil, "invalid ring id %d\n", evt->ringid);
                return;
        }

        if (evt->status != WMI_BA_AGREED) {
                evt->ba_timeout = 0;
                evt->agg_wsize = 0;
                evt->amsdu = 0;
        }

        txdata = &wil->ring_tx_data[evt->ringid];

        txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
        txdata->agg_wsize = evt->agg_wsize;
        txdata->agg_amsdu = evt->amsdu;
        txdata->addba_in_progress = false;
}

static void wmi_evt_addba_rx_req(struct wil6210_vif *vif, int id,
                                 void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        u8 cid, tid;
        struct wmi_rcp_addba_req_event *evt = d;

        if (evt->cidxtid != CIDXTID_EXTENDED_CID_TID) {
                parse_cidxtid(evt->cidxtid, &cid, &tid);
        } else {
                cid = evt->cid;
                tid = evt->tid;
        }
        wil_addba_rx_request(wil, vif->mid, cid, tid, evt->dialog_token,
                             evt->ba_param_set, evt->ba_timeout,
                             evt->ba_seq_ctrl);
}

static void wmi_evt_delba(struct wil6210_vif *vif, int id, void *d, int len)
__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_delba_event *evt = d;
        u8 cid, tid;
        u16 reason = __le16_to_cpu(evt->reason);
        struct wil_sta_info *sta;
        struct wil_tid_ampdu_rx *r;

        might_sleep();

        if (evt->cidxtid != CIDXTID_EXTENDED_CID_TID) {
                parse_cidxtid(evt->cidxtid, &cid, &tid);
        } else {
                cid = evt->cid;
                tid = evt->tid;
        }
        wil_dbg_wmi(wil, "DELBA MID %d CID %d TID %d from %s reason %d\n",
                    vif->mid, cid, tid,
                    evt->from_initiator ? "originator" : "recipient",
                    reason);
        if (!evt->from_initiator) {
                int i;
                /* find Tx vring it belongs to */
                for (i = 0; i < ARRAY_SIZE(wil->ring2cid_tid); i++) {
                        if (wil->ring2cid_tid[i][0] == cid &&
                            wil->ring2cid_tid[i][1] == tid) {
                                struct wil_ring_tx_data *txdata =
                                        &wil->ring_tx_data[i];

                                wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
                                txdata->agg_timeout = 0;
                                txdata->agg_wsize = 0;
                                txdata->addba_in_progress = false;

                                break; /* max. 1 matching ring */
                        }
                }
                if (i >= ARRAY_SIZE(wil->ring2cid_tid))
                        wil_err(wil, "DELBA: unable to find Tx vring\n");
                return;
        }

        sta = &wil->sta[cid];

        spin_lock_bh(&sta->tid_rx_lock);

        r = sta->tid_rx[tid];
        sta->tid_rx[tid] = NULL;
        wil_tid_ampdu_rx_free(wil, r);

        spin_unlock_bh(&sta->tid_rx_lock);
}

static void
wmi_evt_sched_scan_result(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_sched_scan_result_event *data = d;
        struct wiphy *wiphy = wil_to_wiphy(wil);
        struct ieee80211_mgmt *rx_mgmt_frame =
                (struct ieee80211_mgmt *)data->payload;
        int flen = len - offsetof(struct wmi_sched_scan_result_event, payload);
        int ch_no;
        u32 freq;
        struct ieee80211_channel *channel;
        s32 signal;
        __le16 fc;
        u32 d_len;
        struct cfg80211_bss *bss;

        if (flen < 0) {
                wil_err(wil, "sched scan result event too short, len %d\n",
                        len);
                return;
        }

        d_len = le32_to_cpu(data->info.len);
        if (d_len != flen) {
                wil_err(wil,
                        "sched scan result length mismatch, d_len %d should be %d\n",
                        d_len, flen);
                return;
        }

        fc = rx_mgmt_frame->frame_control;
        if (!ieee80211_is_probe_resp(fc)) {
                wil_err(wil, "sched scan result invalid frame, fc 0x%04x\n",
                        fc);
                return;
        }

        ch_no = data->info.channel + 1;
        freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ);
        channel = ieee80211_get_channel(wiphy, freq);
        if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities))
                signal = 100 * data->info.rssi;
        else
                signal = data->info.sqi;

        wil_dbg_wmi(wil, "sched scan result: channel %d MCS %d RSSI %d\n",
                    data->info.channel, data->info.mcs, data->info.rssi);
        wil_dbg_wmi(wil, "len %d qid %d mid %d cid %d\n",
                    d_len, data->info.qid, data->info.mid, data->info.cid);
        wil_hex_dump_wmi("PROBE ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
                         d_len, true);

        if (!channel) {
                wil_err(wil, "Frame on unsupported channel\n");
                return;
        }

        bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
                                        d_len, signal, GFP_KERNEL);
        if (bss) {
                wil_dbg_wmi(wil, "Added BSS %pM\n", rx_mgmt_frame->bssid);
                cfg80211_put_bss(wiphy, bss);
        } else {
                wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
        }

        cfg80211_sched_scan_results(wiphy, 0);
}

static void wil_link_stats_store_basic(struct wil6210_vif *vif,
                                       struct wmi_link_stats_basic *basic)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        u8 cid = basic->cid;
        struct wil_sta_info *sta;

        if (cid < 0 || cid >= max_assoc_sta) {
                wil_err(wil, "invalid cid %d\n", cid);
                return;
        }

        sta = &wil->sta[cid];
        sta->fw_stats_basic = *basic;
}

static void wil_link_stats_store_global(struct wil6210_vif *vif,
                                        struct wmi_link_stats_global *global)
{
        struct wil6210_priv *wil = vif_to_wil(vif);

        wil->fw_stats_global.stats = *global;
}

static void wmi_link_stats_parse(struct wil6210_vif *vif, u64 tsf,
                                 bool has_next, void *payload,
                                 size_t payload_size)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        size_t hdr_size = sizeof(struct wmi_link_stats_record);
        size_t stats_size, record_size, expected_size;
        struct wmi_link_stats_record *hdr;

        if (payload_size < hdr_size) {
                wil_err(wil, "link stats wrong event size %zu\n", payload_size);
                return;
        }

        while (payload_size >= hdr_size) {
                hdr = payload;
                stats_size = le16_to_cpu(hdr->record_size);
                record_size = hdr_size + stats_size;

                if (payload_size < record_size) {
                        wil_err(wil, "link stats payload ended unexpectedly, size %zu < %zu\n",
                                payload_size, record_size);
                        return;
                }

                switch (hdr->record_type_id) {
                case WMI_LINK_STATS_TYPE_BASIC:
                        expected_size = sizeof(struct wmi_link_stats_basic);
                        if (stats_size < expected_size) {
                                wil_err(wil, "link stats invalid basic record size %zu < %zu\n",
                                        stats_size, expected_size);
                                return;
                        }
                        if (vif->fw_stats_ready) {
                                /* clean old statistics */
                                vif->fw_stats_tsf = 0;
                                vif->fw_stats_ready = 0;
                        }

                        wil_link_stats_store_basic(vif, payload + hdr_size);

                        if (!has_next) {
                                vif->fw_stats_tsf = tsf;
                                vif->fw_stats_ready = 1;
                        }

                        break;
                case WMI_LINK_STATS_TYPE_GLOBAL:
                        expected_size = sizeof(struct wmi_link_stats_global);
                        if (stats_size < sizeof(struct wmi_link_stats_global)) {
                                wil_err(wil, "link stats invalid global record size %zu < %zu\n",
                                        stats_size, expected_size);
                                return;
                        }

                        if (wil->fw_stats_global.ready) {
                                /* clean old statistics */
                                wil->fw_stats_global.tsf = 0;
                                wil->fw_stats_global.ready = 0;
                        }

                        wil_link_stats_store_global(vif, payload + hdr_size);

                        if (!has_next) {
                                wil->fw_stats_global.tsf = tsf;
                                wil->fw_stats_global.ready = 1;
                        }

                        break;
                default:
                        break;
                }

                /* skip to next record */
                payload += record_size;
                payload_size -= record_size;
        }
}

static void
wmi_evt_link_stats(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_link_stats_event *evt = d;
        size_t payload_size;

        if (len < offsetof(struct wmi_link_stats_event, payload)) {
                wil_err(wil, "stats event way too short %d\n", len);
                return;
        }
        payload_size = le16_to_cpu(evt->payload_size);
        if (len < sizeof(struct wmi_link_stats_event) + payload_size) {
                wil_err(wil, "stats event too short %d\n", len);
                return;
        }

        wmi_link_stats_parse(vif, le64_to_cpu(evt->tsf), evt->has_next,
                             evt->payload, payload_size);
}

/**
 * find cid and ringid for the station vif
 *
 * return error, if other interfaces are used or ring was not found
 */
static int wil_find_cid_ringid_sta(struct wil6210_priv *wil,
                                   struct wil6210_vif *vif,
                                   int *cid,
                                   int *ringid)
{
        struct wil_ring *ring;
        struct wil_ring_tx_data *txdata;
        int min_ring_id = wil_get_min_tx_ring_id(wil);
        int i;
        u8 lcid;

        if (!(vif->wdev.iftype == NL80211_IFTYPE_STATION ||
              vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)) {
                wil_err(wil, "invalid interface type %d\n", vif->wdev.iftype);
                return -EINVAL;
        }

        /* In the STA mode, it is expected to have only one ring
         * for the AP we are connected to.
         * find it and return the cid associated with it.
         */
        for (i = min_ring_id; i < WIL6210_MAX_TX_RINGS; i++) {
                ring = &wil->ring_tx[i];
                txdata = &wil->ring_tx_data[i];
                if (!ring->va || !txdata->enabled || txdata->mid != vif->mid)
                        continue;

                lcid = wil->ring2cid_tid[i][0];
                if (lcid >= max_assoc_sta) /* skip BCAST */
                        continue;

                wil_dbg_wmi(wil, "find sta -> ringid %d cid %d\n", i, lcid);
                *cid = lcid;
                *ringid = i;
                return 0;
        }

        wil_dbg_wmi(wil, "find sta cid while no rings active?\n");

        return -ENOENT;
}

static void
wmi_evt_auth_status(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct net_device *ndev = vif_to_ndev(vif);
        struct wmi_ft_auth_status_event *data = d;
        int ie_len = len - offsetof(struct wmi_ft_auth_status_event, ie_info);
        int rc, cid = 0, ringid = 0;
        struct cfg80211_ft_event_params ft;
        u16 d_len;
        /* auth_alg(u16) + auth_transaction(u16) + status_code(u16) */
        const size_t auth_ie_offset = sizeof(u16) * 3;
        struct auth_no_hdr *auth = (struct auth_no_hdr *)data->ie_info;

        /* check the status */
        if (ie_len >= 0 && data->status != WMI_FW_STATUS_SUCCESS) {
                wil_err(wil, "FT: auth failed. status %d\n", data->status);
                goto fail;
        }

        if (ie_len < auth_ie_offset) {
                wil_err(wil, "FT: auth event too short, len %d\n", len);
                goto fail;
        }

        d_len = le16_to_cpu(data->ie_len);
        if (d_len != ie_len) {
                wil_err(wil,
                        "FT: auth ie length mismatch, d_len %d should be %d\n",
                        d_len, ie_len);
                goto fail;
        }

        if (!test_bit(wil_vif_ft_roam, wil->status)) {
                wil_err(wil, "FT: Not in roaming state\n");
                goto fail;
        }

        if (le16_to_cpu(auth->auth_transaction) != 2) {
                wil_err(wil, "FT: auth error. auth_transaction %d\n",
                        le16_to_cpu(auth->auth_transaction));
                goto fail;
        }

        if (le16_to_cpu(auth->auth_alg) != WLAN_AUTH_FT) {
                wil_err(wil, "FT: auth error. auth_alg %d\n",
                        le16_to_cpu(auth->auth_alg));
                goto fail;
        }

        wil_dbg_wmi(wil, "FT: Auth to %pM successfully\n", data->mac_addr);
        wil_hex_dump_wmi("FT Auth ies : ", DUMP_PREFIX_OFFSET, 16, 1,
                         data->ie_info, d_len, true);

        /* find cid and ringid */
        rc = wil_find_cid_ringid_sta(wil, vif, &cid, &ringid);
        if (rc) {
                wil_err(wil, "No valid cid found\n");
                goto fail;
        }

        if (vif->privacy) {
                /* For secure assoc, remove old keys */
                rc = wmi_del_cipher_key(vif, 0, wil->sta[cid].addr,
                                        WMI_KEY_USE_PAIRWISE);
                if (rc) {
                        wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
                        goto fail;
                }
                rc = wmi_del_cipher_key(vif, 0, wil->sta[cid].addr,
                                        WMI_KEY_USE_RX_GROUP);
                if (rc) {
                        wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
                        goto fail;
                }
        }

        memset(&ft, 0, sizeof(ft));
        ft.ies = data->ie_info + auth_ie_offset;
        ft.ies_len = d_len - auth_ie_offset;
        ft.target_ap = data->mac_addr;
        cfg80211_ft_event(ndev, &ft);

        return;

fail:
        wil6210_disconnect(vif, NULL, WLAN_REASON_PREV_AUTH_NOT_VALID);
}

static void
wmi_evt_reassoc_status(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct net_device *ndev = vif_to_ndev(vif);
        struct wiphy *wiphy = wil_to_wiphy(wil);
        struct wmi_ft_reassoc_status_event *data = d;
        int ies_len = len - offsetof(struct wmi_ft_reassoc_status_event,
                                     ie_info);
        int rc = -ENOENT, cid = 0, ringid = 0;
        int ch; /* channel number (primary) */
        size_t assoc_req_ie_len = 0, assoc_resp_ie_len = 0;
        u8 *assoc_req_ie = NULL, *assoc_resp_ie = NULL;
        /* capinfo(u16) + listen_interval(u16) + current_ap mac addr + IEs */
        const size_t assoc_req_ie_offset = sizeof(u16) * 2 + ETH_ALEN;
        /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
        const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
        u16 d_len;
        int freq;
        struct cfg80211_roam_info info;

        if (ies_len < 0) {
                wil_err(wil, "ft reassoc event too short, len %d\n", len);
                goto fail;
        }

        wil_dbg_wmi(wil, "Reasoc Status event: status=%d, aid=%d",
                    data->status, data->aid);
        wil_dbg_wmi(wil, "    mac_addr=%pM, beacon_ie_len=%d",
                    data->mac_addr, data->beacon_ie_len);
        wil_dbg_wmi(wil, "    reassoc_req_ie_len=%d, reassoc_resp_ie_len=%d",
                    le16_to_cpu(data->reassoc_req_ie_len),
                    le16_to_cpu(data->reassoc_resp_ie_len));

        d_len = le16_to_cpu(data->beacon_ie_len) +
                le16_to_cpu(data->reassoc_req_ie_len) +
                le16_to_cpu(data->reassoc_resp_ie_len);
        if (d_len != ies_len) {
                wil_err(wil,
                        "ft reassoc ie length mismatch, d_len %d should be %d\n",
                        d_len, ies_len);
                goto fail;
        }

        /* check the status */
        if (data->status != WMI_FW_STATUS_SUCCESS) {
                wil_err(wil, "ft reassoc failed. status %d\n", data->status);
                goto fail;
        }

        /* find cid and ringid */
        rc = wil_find_cid_ringid_sta(wil, vif, &cid, &ringid);
        if (rc) {
                wil_err(wil, "No valid cid found\n");
                goto fail;
        }

        ch = data->channel + 1;
        wil_info(wil, "FT: Roam %pM channel [%d] cid %d aid %d\n",
                 data->mac_addr, ch, cid, data->aid);

        wil_hex_dump_wmi("reassoc AI : ", DUMP_PREFIX_OFFSET, 16, 1,
                         data->ie_info, len - sizeof(*data), true);

        /* figure out IE's */
        if (le16_to_cpu(data->reassoc_req_ie_len) > assoc_req_ie_offset) {
                assoc_req_ie = &data->ie_info[assoc_req_ie_offset];
                assoc_req_ie_len = le16_to_cpu(data->reassoc_req_ie_len) -
                        assoc_req_ie_offset;
        }
        if (le16_to_cpu(data->reassoc_resp_ie_len) <= assoc_resp_ie_offset) {
                wil_err(wil, "FT: reassoc resp ie len is too short, len %d\n",
                        le16_to_cpu(data->reassoc_resp_ie_len));
                goto fail;
        }

        assoc_resp_ie = &data->ie_info[le16_to_cpu(data->reassoc_req_ie_len) +
                assoc_resp_ie_offset];
        assoc_resp_ie_len = le16_to_cpu(data->reassoc_resp_ie_len) -
                assoc_resp_ie_offset;

        if (test_bit(wil_status_resetting, wil->status) ||
            !test_bit(wil_status_fwready, wil->status)) {
                wil_err(wil, "FT: status_resetting, cancel reassoc event\n");
                /* no need for cleanup, wil_reset will do that */
                return;
        }

        mutex_lock(&wil->mutex);

        /* ring modify to set the ring for the roamed AP settings */
        wil_dbg_wmi(wil,
                    "ft modify tx config for connection CID %d ring %d\n",
                    cid, ringid);

        rc = wil->txrx_ops.tx_ring_modify(vif, ringid, cid, 0);
        if (rc) {
                wil_err(wil, "modify TX for CID %d MID %d ring %d failed (%d)\n",
                        cid, vif->mid, ringid, rc);
                mutex_unlock(&wil->mutex);
                goto fail;
        }

        /* Update the driver STA members with the new bss */
        wil->sta[cid].aid = data->aid;
        wil->sta[cid].stats.ft_roams++;
        ether_addr_copy(wil->sta[cid].addr, vif->bss->bssid);
        mutex_unlock(&wil->mutex);
        del_timer_sync(&vif->connect_timer);

        cfg80211_ref_bss(wiphy, vif->bss);
        freq = ieee80211_channel_to_frequency(ch, NL80211_BAND_60GHZ);

        memset(&info, 0, sizeof(info));
        info.channel = ieee80211_get_channel(wiphy, freq);
        info.bss = vif->bss;
        info.req_ie = assoc_req_ie;
        info.req_ie_len = assoc_req_ie_len;
        info.resp_ie = assoc_resp_ie;
        info.resp_ie_len = assoc_resp_ie_len;
        cfg80211_roamed(ndev, &info, GFP_KERNEL);
        vif->bss = NULL;

        return;

fail:
        wil6210_disconnect(vif, NULL, WLAN_REASON_PREV_AUTH_NOT_VALID);
}

/**
 * Some events are ignored for purpose; and need not be interpreted as
 * "unhandled events"
 */
static void wmi_evt_ignore(struct wil6210_vif *vif, int id, void *d, int len)
{
        struct wil6210_priv *wil = vif_to_wil(vif);

        wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
}

static const struct {
        int eventid;
        void (*handler)(struct wil6210_vif *vif,
                        int eventid, void *data, int data_len);
} wmi_evt_handlers[] = {
        {WMI_READY_EVENTID,             wmi_evt_ready},
        {WMI_FW_READY_EVENTID,                  wmi_evt_ignore},
        {WMI_RX_MGMT_PACKET_EVENTID,    wmi_evt_rx_mgmt},
        {WMI_TX_MGMT_PACKET_EVENTID,            wmi_evt_tx_mgmt},
        {WMI_SCAN_COMPLETE_EVENTID,     wmi_evt_scan_complete},
        {WMI_CONNECT_EVENTID,           wmi_evt_connect},
        {WMI_DISCONNECT_EVENTID,        wmi_evt_disconnect},
        {WMI_EAPOL_RX_EVENTID,          wmi_evt_eapol_rx},
        {WMI_BA_STATUS_EVENTID,         wmi_evt_ba_status},
        {WMI_RCP_ADDBA_REQ_EVENTID,     wmi_evt_addba_rx_req},
        {WMI_DELBA_EVENTID,             wmi_evt_delba},
        {WMI_RING_EN_EVENTID,           wmi_evt_ring_en},
        {WMI_DATA_PORT_OPEN_EVENTID,            wmi_evt_ignore},
        {WMI_SCHED_SCAN_RESULT_EVENTID,         wmi_evt_sched_scan_result},
        {WMI_LINK_STATS_EVENTID,                wmi_evt_link_stats},
        {WMI_FT_AUTH_STATUS_EVENTID,            wmi_evt_auth_status},
        {WMI_FT_REASSOC_STATUS_EVENTID,         wmi_evt_reassoc_status},
};

/*
 * Run in IRQ context
 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
 * that will be eventually handled by the @wmi_event_worker in the thread
 * context of thread "wil6210_wmi"
 */
void wmi_recv_cmd(struct wil6210_priv *wil)
{
        struct wil6210_mbox_ring_desc d_tail;
        struct wil6210_mbox_hdr hdr;
        struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
        struct pending_wmi_event *evt;
        u8 *cmd;
        void __iomem *src;
        ulong flags;
        unsigned n;
        unsigned int num_immed_reply = 0;

        if (!test_bit(wil_status_mbox_ready, wil->status)) {
                wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
                return;
        }

        if (test_bit(wil_status_suspended, wil->status)) {
                wil_err(wil, "suspended. cannot handle WMI event\n");
                return;
        }

        for (n = 0;; n++) {
                u16 len;
                bool q;
                bool immed_reply = false;

                r->head = wil_r(wil, RGF_MBOX +
                                offsetof(struct wil6210_mbox_ctl, rx.head));
                if (r->tail == r->head)
                        break;

                wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
                            r->head, r->tail);
                /* read cmd descriptor from tail */
                wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
                                     sizeof(struct wil6210_mbox_ring_desc));
                if (d_tail.sync == 0) {
                        wil_err(wil, "Mbox evt not owned by FW?\n");
                        break;
                }

                /* read cmd header from descriptor */
                if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
                        wil_err(wil, "Mbox evt at 0x%08x?\n",
                                le32_to_cpu(d_tail.addr));
                        break;
                }
                len = le16_to_cpu(hdr.len);
                wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
                            le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
                            hdr.flags);

                /* read cmd buffer from descriptor */
                src = wmi_buffer(wil, d_tail.addr) +
                      sizeof(struct wil6210_mbox_hdr);
                evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
                                             event.wmi) + len, 4),
                              GFP_KERNEL);
                if (!evt)
                        break;

                evt->event.hdr = hdr;
                cmd = (void *)&evt->event.wmi;
                wil_memcpy_fromio_32(cmd, src, len);
                /* mark entry as empty */
                wil_w(wil, r->tail +
                      offsetof(struct wil6210_mbox_ring_desc, sync), 0);
                /* indicate */
                if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
                    (len >= sizeof(struct wmi_cmd_hdr))) {
                        struct wmi_cmd_hdr *wmi = &evt->event.wmi;
                        u16 id = le16_to_cpu(wmi->command_id);
                        u8 mid = wmi->mid;
                        u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
                        if (test_bit(wil_status_resuming, wil->status)) {
                                if (id == WMI_TRAFFIC_RESUME_EVENTID)
                                        clear_bit(wil_status_resuming,
                                                  wil->status);
                                else
                                        wil_err(wil,
                                                "WMI evt %d while resuming\n",
                                                id);
                        }
                        spin_lock_irqsave(&wil->wmi_ev_lock, flags);
                        if (wil->reply_id && wil->reply_id == id &&
                            wil->reply_mid == mid) {
                                if (wil->reply_buf) {
                                        memcpy(wil->reply_buf, wmi,
                                               min(len, wil->reply_size));
                                        immed_reply = true;
                                }
                                if (id == WMI_TRAFFIC_SUSPEND_EVENTID) {
                                        wil_dbg_wmi(wil,
                                                    "set suspend_resp_rcvd\n");
                                        wil->suspend_resp_rcvd = true;
                                }
                        }
                        spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);

                        wil_dbg_wmi(wil, "recv %s (0x%04x) MID %d @%d msec\n",
                                    eventid2name(id), id, wmi->mid, tstamp);
                        trace_wil6210_wmi_event(wmi, &wmi[1],
                                                len - sizeof(*wmi));
                }
                wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
                                 &evt->event.hdr, sizeof(hdr) + len, true);

                /* advance tail */
                r->tail = r->base + ((r->tail - r->base +
                          sizeof(struct wil6210_mbox_ring_desc)) % r->size);
                wil_w(wil, RGF_MBOX +
                      offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);

                if (immed_reply) {
                        wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n",
                                    wil->reply_id);
                        kfree(evt);
                        num_immed_reply++;
                        complete(&wil->wmi_call);
                } else {
                        /* add to the pending list */
                        spin_lock_irqsave(&wil->wmi_ev_lock, flags);
                        list_add_tail(&evt->list, &wil->pending_wmi_ev);
                        spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
                        q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
                        wil_dbg_wmi(wil, "queue_work -> %d\n", q);
                }
        }
        /* normally, 1 event per IRQ should be processed */
        wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n",
                    n - num_immed_reply, num_immed_reply);
}

int wmi_call(struct wil6210_priv *wil, u16 cmdid, u8 mid, void *buf, u16 len,
             u16 reply_id, void *reply, u16 reply_size, int to_msec)

{
        int rc;
        unsigned long remain;
        ulong flags;

        mutex_lock(&wil->wmi_mutex);

        spin_lock_irqsave(&wil->wmi_ev_lock, flags);
        wil->reply_id = reply_id;
        wil->reply_mid = mid;
        wil->reply_buf = reply;
        wil->reply_size = reply_size;
        reinit_completion(&wil->wmi_call);
        spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);

        rc = __wmi_send(wil, cmdid, mid, buf, len);
        if (rc)
                goto out;

        remain = wait_for_completion_timeout(&wil->wmi_call,
                                             msecs_to_jiffies(to_msec));
        if (0 == remain) {
                wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
                        cmdid, reply_id, to_msec);
                rc = -ETIME;
        } else {
                wil_dbg_wmi(wil,
                            "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
                            cmdid, reply_id,
                            to_msec - jiffies_to_msecs(remain));
        }

out:
        spin_lock_irqsave(&wil->wmi_ev_lock, flags);
        wil->reply_id = 0;
        wil->reply_mid = U8_MAX;
        wil->reply_buf = NULL;
        wil->reply_size = 0;
        spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);

        mutex_unlock(&wil->wmi_mutex);

        return rc;
}

int wmi_echo(struct wil6210_priv *wil)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        struct wmi_echo_cmd cmd = {
                .value = cpu_to_le32(0x12345678),
        };

        return wmi_call(wil, WMI_ECHO_CMDID, vif->mid, &cmd, sizeof(cmd),
                        WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
}

int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        struct wmi_set_mac_address_cmd cmd;

        ether_addr_copy(cmd.mac, addr);

        wil_dbg_wmi(wil, "Set MAC %pM\n", addr);

        return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, vif->mid,
                        &cmd, sizeof(cmd));
}

int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc = 0;
        struct wmi_led_cfg_cmd cmd = {
                .led_mode = enable,
                .id = led_id,
                .slow_blink_cfg.blink_on =
                        cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms),
                .slow_blink_cfg.blink_off =
                        cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms),
                .medium_blink_cfg.blink_on =
                        cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms),
                .medium_blink_cfg.blink_off =
                        cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms),
                .fast_blink_cfg.blink_on =
                        cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms),
                .fast_blink_cfg.blink_off =
                        cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms),
                .led_polarity = led_polarity,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_led_cfg_done_event evt;
        } __packed reply = {
                .evt = {.status = cpu_to_le32(WMI_FW_STATUS_FAILURE)},
        };

        if (led_id == WIL_LED_INVALID_ID)
                goto out;

        if (led_id > WIL_LED_MAX_ID) {
                wil_err(wil, "Invalid led id %d\n", led_id);
                rc = -EINVAL;
                goto out;
        }

        wil_dbg_wmi(wil,
                    "%s led %d\n",
                    enable ? "enabling" : "disabling", led_id);

        rc = wmi_call(wil, WMI_LED_CFG_CMDID, vif->mid, &cmd, sizeof(cmd),
                      WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply),
                      100);
        if (rc)
                goto out;

        if (reply.evt.status) {
                wil_err(wil, "led %d cfg failed with status %d\n",
                        led_id, le32_to_cpu(reply.evt.status));
                rc = -EINVAL;
        }

out:
        return rc;
}

int wmi_pcp_start(struct wil6210_vif *vif,
                  int bi, u8 wmi_nettype, u8 chan, u8 hidden_ssid, u8 is_go)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;

        struct wmi_pcp_start_cmd cmd = {
                .bcon_interval = cpu_to_le16(bi),
                .network_type = wmi_nettype,
                .disable_sec_offload = 1,
                .channel = chan - 1,
                .pcp_max_assoc_sta = max_assoc_sta,
                .hidden_ssid = hidden_ssid,
                .is_go = is_go,
                .ap_sme_offload_mode = disable_ap_sme ?
                                       WMI_AP_SME_OFFLOAD_PARTIAL :
                                       WMI_AP_SME_OFFLOAD_FULL,
                .abft_len = wil->abft_len,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_pcp_started_event evt;
        } __packed reply = {
                .evt = {.status = WMI_FW_STATUS_FAILURE},
        };

        if (!vif->privacy)
                cmd.disable_sec = 1;

        if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
            (cmd.pcp_max_assoc_sta <= 0)) {
                wil_err(wil, "unexpected max_assoc_sta %d\n",
                        cmd.pcp_max_assoc_sta);
                return -EOPNOTSUPP;
        }

        if (disable_ap_sme &&
            !test_bit(WMI_FW_CAPABILITY_AP_SME_OFFLOAD_PARTIAL,
                      wil->fw_capabilities)) {
                wil_err(wil, "disable_ap_sme not supported by FW\n");
                return -EOPNOTSUPP;
        }

        /*
         * Processing time may be huge, in case of secure AP it takes about
         * 3500ms for FW to start AP
         */
        rc = wmi_call(wil, WMI_PCP_START_CMDID, vif->mid, &cmd, sizeof(cmd),
                      WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
        if (rc)
                return rc;

        if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
                rc = -EINVAL;

        if (wmi_nettype != WMI_NETTYPE_P2P)
                /* Don't fail due to error in the led configuration */
                wmi_led_cfg(wil, true);

        return rc;
}

int wmi_pcp_stop(struct wil6210_vif *vif)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;

        rc = wmi_led_cfg(wil, false);
        if (rc)
                return rc;

        return wmi_call(wil, WMI_PCP_STOP_CMDID, vif->mid, NULL, 0,
                        WMI_PCP_STOPPED_EVENTID, NULL, 0,
                        WIL_WMI_PCP_STOP_TO_MS);
}

int wmi_set_ssid(struct wil6210_vif *vif, u8 ssid_len, const void *ssid)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_set_ssid_cmd cmd = {
                .ssid_len = cpu_to_le32(ssid_len),
        };

        if (ssid_len > sizeof(cmd.ssid))
                return -EINVAL;

        memcpy(cmd.ssid, ssid, ssid_len);

        return wmi_send(wil, WMI_SET_SSID_CMDID, vif->mid, &cmd, sizeof(cmd));
}

int wmi_get_ssid(struct wil6210_vif *vif, u8 *ssid_len, void *ssid)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_set_ssid_cmd cmd;
        } __packed reply;
        int len; /* reply.cmd.ssid_len in CPU order */

        memset(&reply, 0, sizeof(reply));

        rc = wmi_call(wil, WMI_GET_SSID_CMDID, vif->mid, NULL, 0,
                      WMI_GET_SSID_EVENTID, &reply, sizeof(reply), 20);
        if (rc)
                return rc;

        len = le32_to_cpu(reply.cmd.ssid_len);
        if (len > sizeof(reply.cmd.ssid))
                return -EINVAL;

        *ssid_len = len;
        memcpy(ssid, reply.cmd.ssid, len);

        return 0;
}

int wmi_set_channel(struct wil6210_priv *wil, int channel)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        struct wmi_set_pcp_channel_cmd cmd = {
                .channel = channel - 1,
        };

        return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, vif->mid,
                        &cmd, sizeof(cmd));
}

int wmi_get_channel(struct wil6210_priv *wil, int *channel)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_set_pcp_channel_cmd cmd;
        } __packed reply;

        memset(&reply, 0, sizeof(reply));

        rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, vif->mid, NULL, 0,
                      WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
        if (rc)
                return rc;

        if (reply.cmd.channel > 3)
                return -EINVAL;

        *channel = reply.cmd.channel + 1;

        return 0;
}

int wmi_p2p_cfg(struct wil6210_vif *vif, int channel, int bi)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;
        struct wmi_p2p_cfg_cmd cmd = {
                .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
                .bcon_interval = cpu_to_le16(bi),
                .channel = channel - 1,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_p2p_cfg_done_event evt;
        } __packed reply = {
                .evt = {.status = WMI_FW_STATUS_FAILURE},
        };

        wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");

        rc = wmi_call(wil, WMI_P2P_CFG_CMDID, vif->mid, &cmd, sizeof(cmd),
                      WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
        if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
                wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
                rc = -EINVAL;
        }

        return rc;
}

int wmi_start_listen(struct wil6210_vif *vif)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_listen_started_event evt;
        } __packed reply = {
                .evt = {.status = WMI_FW_STATUS_FAILURE},
        };

        wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");

        rc = wmi_call(wil, WMI_START_LISTEN_CMDID, vif->mid, NULL, 0,
                      WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
        if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
                wil_err(wil, "device failed to start listen. status %d\n",
                        reply.evt.status);
                rc = -EINVAL;
        }

        return rc;
}

int wmi_start_search(struct wil6210_vif *vif)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_search_started_event evt;
        } __packed reply = {
                .evt = {.status = WMI_FW_STATUS_FAILURE},
        };

        wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");

        rc = wmi_call(wil, WMI_START_SEARCH_CMDID, vif->mid, NULL, 0,
                      WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
        if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
                wil_err(wil, "device failed to start search. status %d\n",
                        reply.evt.status);
                rc = -EINVAL;
        }

        return rc;
}

int wmi_stop_discovery(struct wil6210_vif *vif)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;

        wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");

        rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, vif->mid, NULL, 0,
                      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);

        if (rc)
                wil_err(wil, "Failed to stop discovery\n");

        return rc;
}

int wmi_del_cipher_key(struct wil6210_vif *vif, u8 key_index,
                       const void *mac_addr, int key_usage)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_delete_cipher_key_cmd cmd = {
                .key_index = key_index,
        };

        if (mac_addr)
                memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);

        return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, vif->mid,
                        &cmd, sizeof(cmd));
}

int wmi_add_cipher_key(struct wil6210_vif *vif, u8 key_index,
                       const void *mac_addr, int key_len, const void *key,
                       int key_usage)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_add_cipher_key_cmd cmd = {
                .key_index = key_index,
                .key_usage = key_usage,
                .key_len = key_len,
        };

        if (!key || (key_len > sizeof(cmd.key)))
                return -EINVAL;

        memcpy(cmd.key, key, key_len);
        if (mac_addr)
                memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);

        return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, vif->mid,
                        &cmd, sizeof(cmd));
}

int wmi_set_ie(struct wil6210_vif *vif, u8 type, u16 ie_len, const void *ie)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        static const char *const names[] = {
                [WMI_FRAME_BEACON]      = "BEACON",
                [WMI_FRAME_PROBE_REQ]   = "PROBE_REQ",
                [WMI_FRAME_PROBE_RESP]  = "WMI_FRAME_PROBE_RESP",
                [WMI_FRAME_ASSOC_REQ]   = "WMI_FRAME_ASSOC_REQ",
                [WMI_FRAME_ASSOC_RESP]  = "WMI_FRAME_ASSOC_RESP",
        };
        int rc;
        u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
        struct wmi_set_appie_cmd *cmd;

        if (len < ie_len) {
                rc = -EINVAL;
                goto out;
        }

        cmd = kzalloc(len, GFP_KERNEL);
        if (!cmd) {
                rc = -ENOMEM;
                goto out;
        }
        if (!ie)
                ie_len = 0;

        cmd->mgmt_frm_type = type;
        /* BUG: FW API define ieLen as u8. Will fix FW */
        cmd->ie_len = cpu_to_le16(ie_len);
        memcpy(cmd->ie_info, ie, ie_len);
        rc = wmi_send(wil, WMI_SET_APPIE_CMDID, vif->mid, cmd, len);
        kfree(cmd);
out:
        if (rc) {
                const char *name = type < ARRAY_SIZE(names) ?
                                   names[type] : "??";
                wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
        }

        return rc;
}

int wmi_update_ft_ies(struct wil6210_vif *vif, u16 ie_len, const void *ie)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        u16 len;
        struct wmi_update_ft_ies_cmd *cmd;
        int rc;

        if (!ie)
                ie_len = 0;

        len = sizeof(struct wmi_update_ft_ies_cmd) + ie_len;
        if (len < ie_len) {
                wil_err(wil, "wraparound. ie len %d\n", ie_len);
                return -EINVAL;
        }

        cmd = kzalloc(len, GFP_KERNEL);
        if (!cmd) {
                rc = -ENOMEM;
                goto out;
        }

        cmd->ie_len = cpu_to_le16(ie_len);
        memcpy(cmd->ie_info, ie, ie_len);
        rc = wmi_send(wil, WMI_UPDATE_FT_IES_CMDID, vif->mid, cmd, len);
        kfree(cmd);

out:
        if (rc)
                wil_err(wil, "update ft ies failed : %d\n", rc);

        return rc;
}

/**
 * wmi_rxon - turn radio on/off
 * @on:         turn on if true, off otherwise
 *
 * Only switch radio. Channel should be set separately.
 * No timeout for rxon - radio turned on forever unless some other call
 * turns it off
 */
int wmi_rxon(struct wil6210_priv *wil, bool on)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_listen_started_event evt;
        } __packed reply = {
                .evt = {.status = WMI_FW_STATUS_FAILURE},
        };

        wil_info(wil, "(%s)\n", on ? "on" : "off");

        if (on) {
                rc = wmi_call(wil, WMI_START_LISTEN_CMDID, vif->mid, NULL, 0,
                              WMI_LISTEN_STARTED_EVENTID,
                              &reply, sizeof(reply), 100);
                if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
                        rc = -EINVAL;
        } else {
                rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, vif->mid, NULL, 0,
                              WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
        }

        return rc;
}

int wmi_rx_chain_add(struct wil6210_priv *wil, struct wil_ring *vring)
{
        struct net_device *ndev = wil->main_ndev;
        struct wireless_dev *wdev = ndev->ieee80211_ptr;
        struct wil6210_vif *vif = ndev_to_vif(ndev);
        struct wmi_cfg_rx_chain_cmd cmd = {
                .action = WMI_RX_CHAIN_ADD,
                .rx_sw_ring = {
                        .max_mpdu_size = cpu_to_le16(
                                wil_mtu2macbuf(wil->rx_buf_len)),
                        .ring_mem_base = cpu_to_le64(vring->pa),
                        .ring_size = cpu_to_le16(vring->size),
                },
                .mid = 0, /* TODO - what is it? */
                .decap_trans_type = WMI_DECAP_TYPE_802_3,
                .reorder_type = WMI_RX_SW_REORDER,
                .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_cfg_rx_chain_done_event evt;
        } __packed evt;
        int rc;

        memset(&evt, 0, sizeof(evt));

        if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
                struct ieee80211_channel *ch = wil->monitor_chandef.chan;

                cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
                if (ch)
                        cmd.sniffer_cfg.channel = ch->hw_value - 1;
                cmd.sniffer_cfg.phy_info_mode =
                        cpu_to_le32(WMI_SNIFFER_PHY_INFO_DISABLED);
                cmd.sniffer_cfg.phy_support =
                        cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
                                    ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
        } else {
                /* Initialize offload (in non-sniffer mode).
                 * Linux IP stack always calculates IP checksum
                 * HW always calculate TCP/UDP checksum
                 */
                cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
        }

        if (rx_align_2)
                cmd.l2_802_3_offload_ctrl |=
                                L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;

        /* typical time for secure PCP is 840ms */
        rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, vif->mid, &cmd, sizeof(cmd),
                      WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
        if (rc)
                return rc;

        if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
                rc = -EINVAL;

        vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);

        wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
                     le32_to_cpu(evt.evt.status), vring->hwtail);

        return rc;
}

int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct wmi_temp_sense_cmd cmd = {
                .measure_baseband_en = cpu_to_le32(!!t_bb),
                .measure_rf_en = cpu_to_le32(!!t_rf),
                .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_temp_sense_done_event evt;
        } __packed reply;

        memset(&reply, 0, sizeof(reply));

        rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, vif->mid, &cmd, sizeof(cmd),
                      WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
        if (rc)
                return rc;

        if (t_bb)
                *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
        if (t_rf)
                *t_rf = le32_to_cpu(reply.evt.rf_t1000);

        return 0;
}

int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac, u16 reason,
                       bool del_sta)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;
        struct wmi_disconnect_sta_cmd disc_sta_cmd = {
                .disconnect_reason = cpu_to_le16(reason),
        };
        struct wmi_del_sta_cmd del_sta_cmd = {
                .disconnect_reason = cpu_to_le16(reason),
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_disconnect_event evt;
        } __packed reply;

        wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason);

        memset(&reply, 0, sizeof(reply));
        vif->locally_generated_disc = true;
        if (del_sta) {
                ether_addr_copy(del_sta_cmd.dst_mac, mac);
                rc = wmi_call(wil, WMI_DEL_STA_CMDID, vif->mid, &del_sta_cmd,
                              sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID,
                              &reply, sizeof(reply), 1000);
        } else {
                ether_addr_copy(disc_sta_cmd.dst_mac, mac);
                rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, vif->mid,
                              &disc_sta_cmd, sizeof(disc_sta_cmd),
                              WMI_DISCONNECT_EVENTID,
                              &reply, sizeof(reply), 1000);
        }
        /* failure to disconnect in reasonable time treated as FW error */
        if (rc) {
                wil_fw_error_recovery(wil);
                return rc;
        }
        wil->sinfo_gen++;

        return 0;
}

int wmi_addba(struct wil6210_priv *wil, u8 mid,
              u8 ringid, u8 size, u16 timeout)
{
        u8 amsdu = wil->use_enhanced_dma_hw && wil->use_rx_hw_reordering &&
                test_bit(WMI_FW_CAPABILITY_AMSDU, wil->fw_capabilities) &&
                wil->amsdu_en;
        struct wmi_ring_ba_en_cmd cmd = {
                .ring_id = ringid,
                .agg_max_wsize = size,
                .ba_timeout = cpu_to_le16(timeout),
                .amsdu = amsdu,
        };

        wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d amsdu %d)\n",
                    ringid, size, timeout, amsdu);

        return wmi_send(wil, WMI_RING_BA_EN_CMDID, mid, &cmd, sizeof(cmd));
}

int wmi_delba_tx(struct wil6210_priv *wil, u8 mid, u8 ringid, u16 reason)
{
        struct wmi_ring_ba_dis_cmd cmd = {
                .ring_id = ringid,
                .reason = cpu_to_le16(reason),
        };

        wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason);

        return wmi_send(wil, WMI_RING_BA_DIS_CMDID, mid, &cmd, sizeof(cmd));
}

int wmi_delba_rx(struct wil6210_priv *wil, u8 mid, u8 cid, u8 tid, u16 reason)
{
        struct wmi_rcp_delba_cmd cmd = {
                .reason = cpu_to_le16(reason),
        };

        if (cid >= WIL6210_RX_DESC_MAX_CID) {
                cmd.cidxtid = CIDXTID_EXTENDED_CID_TID;
                cmd.cid = cid;
                cmd.tid = tid;
        } else {
                cmd.cidxtid = mk_cidxtid(cid, tid);
        }

        wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cid,
                    tid, reason);

        return wmi_send(wil, WMI_RCP_DELBA_CMDID, mid, &cmd, sizeof(cmd));
}

int wmi_addba_rx_resp(struct wil6210_priv *wil,
                      u8 mid, u8 cid, u8 tid, u8 token,
                      u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
{
        int rc;
        struct wmi_rcp_addba_resp_cmd cmd = {
                .dialog_token = token,
                .status_code = cpu_to_le16(status),
                /* bit 0: A-MSDU supported
                 * bit 1: policy (should be 0 for us)
                 * bits 2..5: TID
                 * bits 6..15: buffer size
                 */
                .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
                                            (agg_wsize << 6)),
                .ba_timeout = cpu_to_le16(timeout),
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_rcp_addba_resp_sent_event evt;
        } __packed reply = {
                .evt = {.status = cpu_to_le16(WMI_FW_STATUS_FAILURE)},
        };

        if (cid >= WIL6210_RX_DESC_MAX_CID) {
                cmd.cidxtid = CIDXTID_EXTENDED_CID_TID;
                cmd.cid = cid;
                cmd.tid = tid;
        } else {
                cmd.cidxtid = mk_cidxtid(cid, tid);
        }

        wil_dbg_wmi(wil,
                    "ADDBA response for MID %d CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
                    mid, cid, tid, agg_wsize,
                    timeout, status, amsdu ? "+" : "-");

        rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, mid, &cmd, sizeof(cmd),
                      WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
                      100);
        if (rc)
                return rc;

        if (reply.evt.status) {
                wil_err(wil, "ADDBA response failed with status %d\n",
                        le16_to_cpu(reply.evt.status));
                rc = -EINVAL;
        }

        return rc;
}

int wmi_addba_rx_resp_edma(struct wil6210_priv *wil, u8 mid, u8 cid, u8 tid,
                           u8 token, u16 status, bool amsdu, u16 agg_wsize,
                           u16 timeout)
{
        int rc;
        struct wmi_rcp_addba_resp_edma_cmd cmd = {
                .cid = cid,
                .tid = tid,
                .dialog_token = token,
                .status_code = cpu_to_le16(status),
                /* bit 0: A-MSDU supported
                 * bit 1: policy (should be 0 for us)
                 * bits 2..5: TID
                 * bits 6..15: buffer size
                 */
                .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
                                            (agg_wsize << 6)),
                .ba_timeout = cpu_to_le16(timeout),
                /* route all the connections to status ring 0 */
                .status_ring_id = WIL_DEFAULT_RX_STATUS_RING_ID,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_rcp_addba_resp_sent_event evt;
        } __packed reply = {
                .evt = {.status = cpu_to_le16(WMI_FW_STATUS_FAILURE)},
        };

        wil_dbg_wmi(wil,
                    "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s, sring_id %d\n",
                    cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-",
                    WIL_DEFAULT_RX_STATUS_RING_ID);

        rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_EDMA_CMDID, mid, &cmd,
                      sizeof(cmd), WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply,
                      sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
        if (rc)
                return rc;

        if (reply.evt.status) {
                wil_err(wil, "ADDBA response failed with status %d\n",
                        le16_to_cpu(reply.evt.status));
                rc = -EINVAL;
        }

        return rc;
}

int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil,
                           enum wmi_ps_profile_type ps_profile)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct wmi_ps_dev_profile_cfg_cmd cmd = {
                .ps_profile = ps_profile,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_ps_dev_profile_cfg_event evt;
        } __packed reply = {
                .evt = {.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR)},
        };
        u32 status;

        wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile);

        rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, vif->mid,
                      &cmd, sizeof(cmd),
                      WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply),
                      100);
        if (rc)
                return rc;

        status = le32_to_cpu(reply.evt.status);

        if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) {
                wil_err(wil, "ps dev profile cfg failed with status %d\n",
                        status);
                rc = -EINVAL;
        }

        return rc;
}

int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct wmi_set_mgmt_retry_limit_cmd cmd = {
                .mgmt_retry_limit = retry_short,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_set_mgmt_retry_limit_event evt;
        } __packed reply = {
                .evt = {.status = WMI_FW_STATUS_FAILURE},
        };

        wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short);

        if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
                return -ENOTSUPP;

        rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, vif->mid,
                      &cmd, sizeof(cmd),
                      WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
                      100);
        if (rc)
                return rc;

        if (reply.evt.status != WMI_FW_STATUS_SUCCESS) {
                wil_err(wil, "set mgmt retry limit failed with status %d\n",
                        reply.evt.status);
                rc = -EINVAL;
        }

        return rc;
}

int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_get_mgmt_retry_limit_event evt;
        } __packed reply;

        wil_dbg_wmi(wil, "getting mgmt retry short\n");

        if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
                return -ENOTSUPP;

        memset(&reply, 0, sizeof(reply));
        rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, vif->mid, NULL, 0,
                      WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
                      100);
        if (rc)
                return rc;

        if (retry_short)
                *retry_short = reply.evt.mgmt_retry_limit;

        return 0;
}

int wmi_abort_scan(struct wil6210_vif *vif)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;

        wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n");

        rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, vif->mid, NULL, 0);
        if (rc)
                wil_err(wil, "Failed to abort scan (%d)\n", rc);

        return rc;
}

int wmi_new_sta(struct wil6210_vif *vif, const u8 *mac, u8 aid)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        int rc;
        struct wmi_new_sta_cmd cmd = {
                .aid = aid,
        };

        wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid);

        ether_addr_copy(cmd.dst_mac, mac);

        rc = wmi_send(wil, WMI_NEW_STA_CMDID, vif->mid, &cmd, sizeof(cmd));
        if (rc)
                wil_err(wil, "Failed to send new sta (%d)\n", rc);

        return rc;
}

void wmi_event_flush(struct wil6210_priv *wil)
{
        ulong flags;
        struct pending_wmi_event *evt, *t;

        wil_dbg_wmi(wil, "event_flush\n");

        spin_lock_irqsave(&wil->wmi_ev_lock, flags);

        list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
                list_del(&evt->list);
                kfree(evt);
        }

        spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
}

static const char *suspend_status2name(u8 status)
{
        switch (status) {
        case WMI_TRAFFIC_SUSPEND_REJECTED_LINK_NOT_IDLE:
                return "LINK_NOT_IDLE";
        case WMI_TRAFFIC_SUSPEND_REJECTED_DISCONNECT:
                return "DISCONNECT";
        case WMI_TRAFFIC_SUSPEND_REJECTED_OTHER:
                return "OTHER";
        default:
                return "Untracked status";
        }
}

int wmi_suspend(struct wil6210_priv *wil)
{
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        int rc;
        struct wmi_traffic_suspend_cmd cmd = {
                .wakeup_trigger = wil->wakeup_trigger,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_traffic_suspend_event evt;
        } __packed reply = {
                .evt = {.status = WMI_TRAFFIC_SUSPEND_REJECTED_LINK_NOT_IDLE},
        };

        u32 suspend_to = WIL_WAIT_FOR_SUSPEND_RESUME_COMP;

        wil->suspend_resp_rcvd = false;
        wil->suspend_resp_comp = false;

        rc = wmi_call(wil, WMI_TRAFFIC_SUSPEND_CMDID, vif->mid,
                      &cmd, sizeof(cmd),
                      WMI_TRAFFIC_SUSPEND_EVENTID, &reply, sizeof(reply),
                      suspend_to);
        if (rc) {
                wil_err(wil, "wmi_call for suspend req failed, rc=%d\n", rc);
                if (rc == -ETIME)
                        /* wmi_call TO */
                        wil->suspend_stats.rejected_by_device++;
                else
                        wil->suspend_stats.rejected_by_host++;