From: Greg Rose Date: Sat, 6 Nov 2010 05:43:21 +0000 (+0000) Subject: igb: Fix overwrite of the VF's flags X-Git-Tag: firefly_0821_release~7613^2~3122^2~84^2~9 X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=8fa7e0f739b70db14e788efba4960bfc1873d550;p=firefly-linux-kernel-4.4.55.git igb: Fix overwrite of the VF's flags The vf flags were being overwritten causing the flag that indicates that the PF has set the VF MAC address to get cleared. This would allow the VF to override the MAC address assigned by the Host VMM using the ip link set command. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 62348fc60e53..be426a4a7240 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -1654,7 +1654,7 @@ void igb_reset(struct igb_adapter *adapter) if (adapter->vfs_allocated_count) { int i; for (i = 0 ; i < adapter->vfs_allocated_count; i++) - adapter->vf_data[i].flags = 0; + adapter->vf_data[i].flags &= IGB_VF_FLAG_PF_SET_MAC; /* ping all the active vfs to let them know we are going down */ igb_ping_all_vfs(adapter); @@ -4971,8 +4971,8 @@ static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf) { - /* clear flags */ - adapter->vf_data[vf].flags &= ~(IGB_VF_FLAG_PF_SET_MAC); + /* clear flags - except flag that indicates PF has set the MAC */ + adapter->vf_data[vf].flags &= IGB_VF_FLAG_PF_SET_MAC; adapter->vf_data[vf].last_nack = jiffies; /* reset offloads to defaults */ @@ -5026,7 +5026,7 @@ static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf) reg = rd32(E1000_VFRE); wr32(E1000_VFRE, reg | (1 << vf)); - adapter->vf_data[vf].flags = IGB_VF_FLAG_CTS; + adapter->vf_data[vf].flags |= IGB_VF_FLAG_CTS; /* reply to reset with ack and vf mac address */ msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK;