Merge branch 'bnxt_en-next'

Michael Chan says:

====================
bnxt_en: Update for net-next

The first 2 patches are fixes for the recently added hwmon changes.
The next 6 patches are enhancements to support ethtool lanes and
all the proper supported and advertised link modes.  Before these
patches, the driver was only supporting the link modes for copper
media.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -2129,6 +2129,48 @@ static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id)
 	return INVALID_HW_RING_ID;
 }
 
+static u16 bnxt_get_force_speed(struct bnxt_link_info *link_info)
+{
+	if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4)
+		return link_info->force_pam4_link_speed;
+	return link_info->force_link_speed;
+}
+
+static void bnxt_set_force_speed(struct bnxt_link_info *link_info)
+{
+	link_info->req_link_speed = link_info->force_link_speed;
+	link_info->req_signal_mode = BNXT_SIG_MODE_NRZ;
+	if (link_info->force_pam4_link_speed) {
+		link_info->req_link_speed = link_info->force_pam4_link_speed;
+		link_info->req_signal_mode = BNXT_SIG_MODE_PAM4;
+	}
+}
+
+static void bnxt_set_auto_speed(struct bnxt_link_info *link_info)
+{
+	link_info->advertising = link_info->auto_link_speeds;
+	link_info->advertising_pam4 = link_info->auto_pam4_link_speeds;
+}
+
+static bool bnxt_force_speed_updated(struct bnxt_link_info *link_info)
+{
+	if (link_info->req_signal_mode == BNXT_SIG_MODE_NRZ &&
+	    link_info->req_link_speed != link_info->force_link_speed)
+		return true;
+	if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4 &&
+	    link_info->req_link_speed != link_info->force_pam4_link_speed)
+		return true;
+	return false;
+}
+
+static bool bnxt_auto_speed_updated(struct bnxt_link_info *link_info)
+{
+	if (link_info->advertising != link_info->auto_link_speeds ||
+	    link_info->advertising_pam4 != link_info->auto_pam4_link_speeds)
+		return true;
+	return false;
+}
+
 #define BNXT_EVENT_THERMAL_CURRENT_TEMP(data2)				\
 	((data2) &							\
 	  ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_CURRENT_TEMP_MASK)
@@ -2147,7 +2189,8 @@ static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id)
 	  ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_TRANSITION_DIR) ==\
 	 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_TRANSITION_DIR_INCREASING)
 
-static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
+/* Return true if the workqueue has to be scheduled */
+static bool bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
 {
 	u32 err_type = BNXT_EVENT_ERROR_REPORT_TYPE(data1);
 
@@ -2165,6 +2208,7 @@ static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
 	case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_THERMAL_THRESHOLD: {
 		u32 type = EVENT_DATA1_THERMAL_THRESHOLD_TYPE(data1);
 		char *threshold_type;
+		bool notify = false;
 		char *dir_str;
 
 		switch (type) {
@@ -2182,25 +2226,32 @@ static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
 			break;
 		default:
 			netdev_err(bp->dev, "Unknown Thermal threshold type event\n");
-			return;
+			return false;
 		}
-		if (EVENT_DATA1_THERMAL_THRESHOLD_DIR_INCREASING(data1))
+		if (EVENT_DATA1_THERMAL_THRESHOLD_DIR_INCREASING(data1)) {
 			dir_str = "above";
-		else
+			notify = true;
+		} else {
 			dir_str = "below";
+		}
 		netdev_warn(bp->dev, "Chip temperature has gone %s the %s thermal threshold!\n",
 			    dir_str, threshold_type);
 		netdev_warn(bp->dev, "Temperature (In Celsius), Current: %lu, threshold: %lu\n",
 			    BNXT_EVENT_THERMAL_CURRENT_TEMP(data2),
 			    BNXT_EVENT_THERMAL_THRESHOLD_TEMP(data2));
-		bnxt_hwmon_notify_event(bp, type);
-		break;
+		if (notify) {
+			bp->thermal_threshold_type = type;
+			set_bit(BNXT_THERMAL_THRESHOLD_SP_EVENT, &bp->sp_event);
+			return true;
+		}
+		return false;
 	}
 	default:
 		netdev_err(bp->dev, "FW reported unknown error type %u\n",
 			   err_type);
 		break;
 	}
+	return false;
 }
 
 #define BNXT_GET_EVENT_PORT(data)	\
@@ -2246,7 +2297,7 @@ static int bnxt_async_event_process(struct bnxt *bp,
 		/* print unsupported speed warning in forced speed mode only */
 		if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) &&
 		    (data1 & 0x20000)) {
-			u16 fw_speed = link_info->force_link_speed;
+			u16 fw_speed = bnxt_get_force_speed(link_info);
 			u32 speed = bnxt_fw_to_ethtool_speed(fw_speed);
 
 			if (speed != SPEED_UNKNOWN)
@@ -2401,7 +2452,8 @@ static int bnxt_async_event_process(struct bnxt *bp,
 		goto async_event_process_exit;
 	}
 	case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT: {
-		bnxt_event_error_report(bp, data1, data2);
+		if (bnxt_event_error_report(bp, data1, data2))
+			break;
 		goto async_event_process_exit;
 	}
 	case ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE: {
@@ -9679,13 +9731,31 @@ static bool bnxt_support_dropped(u16 advertising, u16 supported)
 	return ((supported | diff) != supported);
 }
 
+static bool bnxt_support_speed_dropped(struct bnxt_link_info *link_info)
+{
+	/* Check if any advertised speeds are no longer supported. The caller
+	 * holds the link_lock mutex, so we can modify link_info settings.
+	 */
+	if (bnxt_support_dropped(link_info->advertising,
+				 link_info->support_auto_speeds)) {
+		link_info->advertising = link_info->support_auto_speeds;
+		return true;
+	}
+	if (bnxt_support_dropped(link_info->advertising_pam4,
+				 link_info->support_pam4_auto_speeds)) {
+		link_info->advertising_pam4 = link_info->support_pam4_auto_speeds;
+		return true;
+	}
+	return false;
+}
+
 int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
 {
 	struct bnxt_link_info *link_info = &bp->link_info;
 	struct hwrm_port_phy_qcfg_output *resp;
 	struct hwrm_port_phy_qcfg_input *req;
 	u8 link_state = link_info->link_state;
-	bool support_changed = false;
+	bool support_changed;
 	int rc;
 
 	rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCFG);
@@ -9799,19 +9869,7 @@ int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
 	if (!BNXT_PHY_CFG_ABLE(bp))
 		return 0;
 
-	/* Check if any advertised speeds are no longer supported. The caller
-	 * holds the link_lock mutex, so we can modify link_info settings.
-	 */
-	if (bnxt_support_dropped(link_info->advertising,
-				 link_info->support_auto_speeds)) {
-		link_info->advertising = link_info->support_auto_speeds;
-		support_changed = true;
-	}
-	if (bnxt_support_dropped(link_info->advertising_pam4,
-				 link_info->support_pam4_auto_speeds)) {
-		link_info->advertising_pam4 = link_info->support_pam4_auto_speeds;
-		support_changed = true;
-	}
+	support_changed = bnxt_support_speed_dropped(link_info);
 	if (support_changed && (link_info->autoneg & BNXT_AUTONEG_SPEED))
 		bnxt_hwrm_set_link_setting(bp, true, false);
 	return 0;
@@ -10352,19 +10410,14 @@ static int bnxt_update_phy_setting(struct bnxt *bp)
 	if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
 		if (BNXT_AUTO_MODE(link_info->auto_mode))
 			update_link = true;
-		if (link_info->req_signal_mode == BNXT_SIG_MODE_NRZ &&
-		    link_info->req_link_speed != link_info->force_link_speed)
-			update_link = true;
-		else if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4 &&
-			 link_info->req_link_speed != link_info->force_pam4_link_speed)
+		if (bnxt_force_speed_updated(link_info))
 			update_link = true;
 		if (link_info->req_duplex != link_info->duplex_setting)
 			update_link = true;
 	} else {
 		if (link_info->auto_mode == BNXT_LINK_AUTO_NONE)
 			update_link = true;
-		if (link_info->advertising != link_info->auto_link_speeds ||
-		    link_info->advertising_pam4 != link_info->auto_pam4_link_speeds)
+		if (bnxt_auto_speed_updated(link_info))
 			update_link = true;
 	}
 
@@ -11982,16 +12035,9 @@ static void bnxt_init_ethtool_link_settings(struct bnxt *bp)
 		} else {
 			link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
 		}
-		link_info->advertising = link_info->auto_link_speeds;
-		link_info->advertising_pam4 = link_info->auto_pam4_link_speeds;
+		bnxt_set_auto_speed(link_info);
 	} else {
-		link_info->req_link_speed = link_info->force_link_speed;
-		link_info->req_signal_mode = BNXT_SIG_MODE_NRZ;
-		if (link_info->force_pam4_link_speed) {
-			link_info->req_link_speed =
-				link_info->force_pam4_link_speed;
-			link_info->req_signal_mode = BNXT_SIG_MODE_PAM4;
-		}
+		bnxt_set_force_speed(link_info);
 		link_info->req_duplex = link_info->duplex_setting;
 	}
 	if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
@@ -12085,6 +12131,9 @@ static void bnxt_sp_task(struct work_struct *work)
 	if (test_and_clear_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event))
 		bnxt_fw_echo_reply(bp);
 
+	if (test_and_clear_bit(BNXT_THERMAL_THRESHOLD_SP_EVENT, &bp->sp_event))
+		bnxt_hwmon_notify_event(bp);
+
 	/* These functions below will clear BNXT_STATE_IN_SP_TASK.  They
 	 * must be the last functions to be called before exiting.
 	 */

drivers/net/ethernet/broadcom/bnxt/bnxt.h

@@ -1295,6 +1295,7 @@ struct bnxt_link_info {
 	u8			req_signal_mode;
 #define BNXT_SIG_MODE_NRZ	PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ
 #define BNXT_SIG_MODE_PAM4	PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4
+#define BNXT_SIG_MODE_MAX	(PORT_PHY_QCFG_RESP_SIGNAL_MODE_LAST + 1)
 	u8			req_duplex;
 	u8			req_flow_ctrl;
 	u16			req_link_speed;
@@ -2094,6 +2095,7 @@ struct bnxt {
 #define BNXT_FW_RESET_NOTIFY_SP_EVENT	18
 #define BNXT_FW_EXCEPTION_SP_EVENT	19
 #define BNXT_LINK_CFG_CHANGE_SP_EVENT	21
+#define BNXT_THERMAL_THRESHOLD_SP_EVENT	22
 #define BNXT_FW_ECHO_REQUEST_SP_EVENT	23
 
 	struct delayed_work	fw_reset_task;
@@ -2196,6 +2198,7 @@ struct bnxt {
 	u8			fatal_thresh_temp;
 	u8			shutdown_thresh_temp;
 #endif
+	u32			thermal_threshold_type;
 	enum board_idx		board_idx;
 };
 

drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c

@@ -18,14 +18,14 @@
 #include "bnxt_hwrm.h"
 #include "bnxt_hwmon.h"
 
-void bnxt_hwmon_notify_event(struct bnxt *bp, u32 type)
+void bnxt_hwmon_notify_event(struct bnxt *bp)
 {
 	u32 attr;
 
 	if (!bp->hwmon_dev)
 		return;
 
-	switch (type) {
+	switch (bp->thermal_threshold_type) {
 	case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_WARN:
 		attr = hwmon_temp_max_alarm;
 		break;

drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.h

@@ -11,11 +11,11 @@
 #define BNXT_HWMON_H
 
 #ifdef CONFIG_BNXT_HWMON
-void bnxt_hwmon_notify_event(struct bnxt *bp, u32 type);
+void bnxt_hwmon_notify_event(struct bnxt *bp);
 void bnxt_hwmon_uninit(struct bnxt *bp);
 void bnxt_hwmon_init(struct bnxt *bp);
 #else
-static inline void bnxt_hwmon_notify_event(struct bnxt *bp, u32 type)
+static inline void bnxt_hwmon_notify_event(struct bnxt *bp)
 {
 }