ath10k: implement fw crash simulation command

This can be useful to test FW crash handling.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 0d25cd7..5e42460 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2092,3 +2092,22 @@ int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id)
        ath10k_dbg(ATH10K_DBG_WMI, "wmi request stats %d\n", (int)stats_id);
        return ath10k_wmi_cmd_send(ar, skb, WMI_REQUEST_STATS_CMDID);
 }
+
+int ath10k_wmi_force_fw_hang(struct ath10k *ar,
+                            enum wmi_force_fw_hang_type type, u32 delay_ms)
+{
+       struct wmi_force_fw_hang_cmd *cmd;
+       struct sk_buff *skb;
+
+       skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+       if (!skb)
+               return -ENOMEM;
+
+       cmd = (struct wmi_force_fw_hang_cmd *)skb->data;
+       cmd->type = __cpu_to_le32(type);
+       cmd->delay_ms = __cpu_to_le32(delay_ms);
+
+       ath10k_dbg(ATH10K_DBG_WMI, "wmi force fw hang %d delay %d\n",
+                  type, delay_ms);
+       return ath10k_wmi_cmd_send(ar, skb, WMI_FORCE_FW_HANG_CMDID);
+}

diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 9555f5a..da3b2bc 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -416,6 +416,7 @@ enum wmi_cmd_id {
        WMI_PDEV_FTM_INTG_CMDID,
        WMI_VDEV_SET_KEEPALIVE_CMDID,
        WMI_VDEV_GET_KEEPALIVE_CMDID,
+       WMI_FORCE_FW_HANG_CMDID,
 
        /* GPIO Configuration */
        WMI_GPIO_CONFIG_CMDID = WMI_CMD_GRP(WMI_GRP_GPIO),
@@ -2972,6 +2973,22 @@ struct wmi_sta_keepalive_cmd {
        struct wmi_sta_keepalive_arp_resp arp_resp;
 } __packed;
 
+enum wmi_force_fw_hang_type {
+       WMI_FORCE_FW_HANG_ASSERT = 1,
+       WMI_FORCE_FW_HANG_NO_DETECT,
+       WMI_FORCE_FW_HANG_CTRL_EP_FULL,
+       WMI_FORCE_FW_HANG_EMPTY_POINT,
+       WMI_FORCE_FW_HANG_STACK_OVERFLOW,
+       WMI_FORCE_FW_HANG_INFINITE_LOOP,
+};
+
+#define WMI_FORCE_FW_HANG_RANDOM_TIME 0xFFFFFFFF
+
+struct wmi_force_fw_hang_cmd {
+       __le32 type;
+       __le32 delay_ms;
+} __packed;
+
 #define ATH10K_RTS_MAX         2347
 #define ATH10K_FRAGMT_THRESHOLD_MIN    540
 #define ATH10K_FRAGMT_THRESHOLD_MAX    2346
@@ -3048,5 +3065,7 @@ int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg);
 int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
                        const struct wmi_pdev_set_wmm_params_arg *arg);
 int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id);
+int ath10k_wmi_force_fw_hang(struct ath10k *ar,
+                            enum wmi_force_fw_hang_type type, u32 delay_ms);
 
 #endif /* _WMI_H_ */