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Commit 8cbde117 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

bnxt_en: Add async event handling for speed config changes. 



On some dual port cards, link speeds on both ports have to be compatible.
Firmware will inform the driver when a certain speed is no longer
supported if the other port has linked up at a certain speed.  Add
logic to handle this event by logging a message and getting the
updated list of supported speeds.

Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 84c33dd3

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

+16 −0
Original line number Diff line number Diff line
@@ -122,6 +122,7 @@ static const u16 bnxt_async_events_arr[] = { 
	HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE,

	HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD,

	HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED,

	HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE,

};



static bool bnxt_vf_pciid(enum board_idx idx)
@@ -1257,6 +1258,21 @@ static int bnxt_async_event_process(struct bnxt *bp, 


	/* TODO CHIMP_FW: Define event id's for link change, error etc */

	switch (event_id) {

	case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: {

		u32 data1 = le32_to_cpu(cmpl->event_data1);

		struct bnxt_link_info *link_info = &bp->link_info;



		if (BNXT_VF(bp))

			goto async_event_process_exit;

		if (data1 & 0x20000) {

			u16 fw_speed = link_info->force_link_speed;

			u32 speed = bnxt_fw_to_ethtool_speed(fw_speed);



			netdev_warn(bp->dev, "Link speed %d no longer supported\n",

				    speed);

		}

		/* fall thru */

	}

	case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:

		set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event);

		break;