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authorGreg Rose <gregory.v.rose@intel.com>2011-10-08 03:05:24 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-10-16 13:15:38 -0700
commit5f8444a3fa617076f8da51a3e8ecce01a5d7f738 (patch)
tree196aa6b0e949ceef2bd7b639c300e40bc0bdb9ad /net/core/rtnetlink.c
parenta90b412cb8c7ccc1689f9ea130883d00a1f0a5bb (diff)
downloadlinux-5f8444a3fa617076f8da51a3e8ecce01a5d7f738.tar.gz
if_link: Add additional parameter to IFLA_VF_INFO for spoof checking
Add configuration setting for drivers to turn spoof checking on or off
for discrete VFs.

v2 - Fix indentation problem, wrap the ifla_vf_info structure in
     #ifdef __KERNEL__ to prevent user space from accessing and
     change function paramater for the spoof check setting netdev
     op from u8 to bool.
v3 - Preset spoof check setting to -1 so that user space tools such
     as ip can detect that the driver didn't report a spoofcheck
     setting.  Prevents incorrect display of spoof check settings
     for drivers that don't report it.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'net/core/rtnetlink.c')
-rw-r--r--net/core/rtnetlink.c33
1 files changed, 30 insertions, 3 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 39f8dd6a2821..9083e82bdae5 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -731,7 +731,8 @@ static inline int rtnl_vfinfo_size(const struct net_device *dev)
 		size += num_vfs *
 			(nla_total_size(sizeof(struct ifla_vf_mac)) +
 			 nla_total_size(sizeof(struct ifla_vf_vlan)) +
-			 nla_total_size(sizeof(struct ifla_vf_tx_rate)));
+			 nla_total_size(sizeof(struct ifla_vf_tx_rate)) +
+			 nla_total_size(sizeof(struct ifla_vf_spoofchk)));
 		return size;
 	} else
 		return 0;
@@ -954,13 +955,27 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 			struct ifla_vf_mac vf_mac;
 			struct ifla_vf_vlan vf_vlan;
 			struct ifla_vf_tx_rate vf_tx_rate;
+			struct ifla_vf_spoofchk vf_spoofchk;
+
+			/*
+			 * Not all SR-IOV capable drivers support the
+			 * spoofcheck query.  Preset to -1 so the user
+			 * space tool can detect that the driver didn't
+			 * report anything.
+			 */
+			ivi.spoofchk = -1;
 			if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
 				break;
-			vf_mac.vf = vf_vlan.vf = vf_tx_rate.vf = ivi.vf;
+			vf_mac.vf =
+				vf_vlan.vf =
+				vf_tx_rate.vf =
+				vf_spoofchk.vf = ivi.vf;
+
 			memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
 			vf_vlan.vlan = ivi.vlan;
 			vf_vlan.qos = ivi.qos;
 			vf_tx_rate.rate = ivi.tx_rate;
+			vf_spoofchk.setting = ivi.spoofchk;
 			vf = nla_nest_start(skb, IFLA_VF_INFO);
 			if (!vf) {
 				nla_nest_cancel(skb, vfinfo);
@@ -968,7 +983,10 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 			}
 			NLA_PUT(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac);
 			NLA_PUT(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan);
-			NLA_PUT(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate), &vf_tx_rate);
+			NLA_PUT(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
+				&vf_tx_rate);
+			NLA_PUT(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
+				&vf_spoofchk);
 			nla_nest_end(skb, vf);
 		}
 		nla_nest_end(skb, vfinfo);
@@ -1202,6 +1220,15 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr *attr)
 							      ivt->rate);
 			break;
 		}
+		case IFLA_VF_SPOOFCHK: {
+			struct ifla_vf_spoofchk *ivs;
+			ivs = nla_data(vf);
+			err = -EOPNOTSUPP;
+			if (ops->ndo_set_vf_spoofchk)
+				err = ops->ndo_set_vf_spoofchk(dev, ivs->vf,
+							       ivs->setting);
+			break;
+		}
 		default:
 			err = -EINVAL;
 			break;