From a6b5ea353845b3f3d9ac4317c0b3be9cc37c259b Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Sat, 6 Nov 2010 05:42:59 +0000 Subject: [PATCH] igb: Warn on attempt to override administratively set MAC/VLAN Print a warning message to the system log when the VF attempts to override administratively set MAC/VLAN configuration. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher --- drivers/net/igb/igb_main.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index be426a4a7240..c9aac7f15cd2 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -5105,7 +5105,14 @@ static void igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf) switch ((msgbuf[0] & 0xFFFF)) { case E1000_VF_SET_MAC_ADDR: - retval = igb_set_vf_mac_addr(adapter, msgbuf, vf); + retval = -EINVAL; + if (!(vf_data->flags & IGB_VF_FLAG_PF_SET_MAC)) + retval = igb_set_vf_mac_addr(adapter, msgbuf, vf); + else + dev_warn(&pdev->dev, + "VF %d attempted to override administratively " + "set MAC address\nReload the VF driver to " + "resume operations\n", vf); break; case E1000_VF_SET_PROMISC: retval = igb_set_vf_promisc(adapter, msgbuf, vf); @@ -5117,8 +5124,12 @@ static void igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf) retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf); break; case E1000_VF_SET_VLAN: - if (adapter->vf_data[vf].pf_vlan) - retval = -1; + retval = -1; + if (vf_data->pf_vlan) + dev_warn(&pdev->dev, + "VF %d attempted to override administratively " + "set VLAN tag\nReload the VF driver to " + "resume operations\n", vf); else retval = igb_set_vf_vlan(adapter, msgbuf, vf); break; -- 2.20.1