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bnxt_en: Add async event handling for speed config changes.

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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: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2016-04-11 04:11:14 -04:00 committed by David S. Miller
parent 84c33dd342
commit 8cbde1175e
1 changed files with 16 additions and 0 deletions
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16
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -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;