ice: Don't tell the OS that link is going down
authorMichal Swiatkowski <michal.swiatkowski@intel.com>
Thu, 13 Feb 2020 21:31:24 +0000 (13:31 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Mar 2020 12:00:15 +0000 (13:00 +0100)
[ Upstream commit 8a55c08d3bbc9ffc9639f69f742e59ebd99f913b ]

Remove code that tell the OS that link is going down when user
change flow control via ethtool. When link is up it isn't certain
that link goes down after 0x0605 aq command. If link doesn't go
down, OS thinks that link is down, but physical link is up. To
reset this state user have to take interface down and up.

If link goes down after 0x0605 command, FW send information
about that and after that driver tells the OS that the link goes
down. So this code in ethtool is unnecessary.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/intel/ice/ice_ethtool.c

index 1fe9f6050635db7d09ceaae5e1b0606597fdaf49..62673e27af0e84ee2ce615e1ca1fe82d91d8a8dc 100644 (file)
@@ -2916,13 +2916,6 @@ ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
        else
                return -EINVAL;
 
-       /* Tell the OS link is going down, the link will go back up when fw
-        * says it is ready asynchronously
-        */
-       ice_print_link_msg(vsi, false);
-       netif_carrier_off(netdev);
-       netif_tx_stop_all_queues(netdev);
-
        /* Set the FC mode and only restart AN if link is up */
        status = ice_set_fc(pi, &aq_failures, link_up);