From: Michael Chan Date: Sat, 5 Mar 2022 08:54:39 +0000 (-0500) Subject: bnxt_en: Eliminate unintended link toggle during FW reset X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7c492a2530c1f05441da541307c2534230dfd59b;p=linux.git bnxt_en: Eliminate unintended link toggle during FW reset If the flow control settings have been changed, a subsequent FW reset may cause the ethernet link to toggle unnecessarily. This link toggle will increase the down time by a few seconds. The problem is caused by bnxt_update_phy_setting() detecting a false mismatch in the flow control settings between the stored software settings and the current FW settings after the FW reset. This mismatch is caused by the AUTONEG bit added to link_info->req_flow_ctrl in an inconsistent way in bnxt_set_pauseparam() in autoneg mode. The AUTONEG bit should not be added to link_info->req_flow_ctrl. Reviewed-by: Colin Winegarden Reviewed-by: Pavan Chebbi Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 7cc69957e529e..eadaca42ed96c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -2109,9 +2109,7 @@ static int bnxt_set_pauseparam(struct net_device *dev, } link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; - if (bp->hwrm_spec_code >= 0x10201) - link_info->req_flow_ctrl = - PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE; + link_info->req_flow_ctrl = 0; } else { /* when transition from auto pause to force pause, * force a link change