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authorCorinna Vinschen <vinschen@redhat.com>2018-01-17 11:53:39 +0100
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2018-03-05 08:35:05 -0800
commit1b8b062a99dc76ba55b3ded97e90717768da47a9 (patch)
tree1795fe55acf088b8ea001811fac819e571bb2327 /drivers/net/ethernet/intel/igb
parenttcp: add ca_state stat in SCM_TIMESTAMPING_OPT_STATS (diff)
downloadlinux-dev-1b8b062a99dc76ba55b3ded97e90717768da47a9.tar.xz
linux-dev-1b8b062a99dc76ba55b3ded97e90717768da47a9.zip
igb: add VF trust infrastructure
* Add a per-VF value to know if a VF is trusted, by default don't trust VFs. * Implement netdev op to trust VFs (igb_ndo_set_vf_trust) and add trust status to ndo_get_vf_config output. * Allow a trusted VF to change MAC and MAC filters even if MAC has been administratively set. Signed-off-by: Corinna Vinschen <vinschen@redhat.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igb')
-rw-r--r--drivers/net/ethernet/intel/igb/igb.h1
-rw-r--r--drivers/net/ethernet/intel/igb/igb_main.c30
2 files changed, 28 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 1c6b8d9176a8..55d6f17d5799 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -109,6 +109,7 @@ struct vf_data_storage {
u16 pf_qos;
u16 tx_rate;
bool spoofchk_enabled;
+ bool trusted;
};
/* Number of unicast MAC filters reserved for the PF in the RAR registers */
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b88fae785369..33f23ce99796 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -190,6 +190,8 @@ static int igb_ndo_set_vf_vlan(struct net_device *netdev,
static int igb_ndo_set_vf_bw(struct net_device *, int, int, int);
static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf,
bool setting);
+static int igb_ndo_set_vf_trust(struct net_device *netdev, int vf,
+ bool setting);
static int igb_ndo_get_vf_config(struct net_device *netdev, int vf,
struct ifla_vf_info *ivi);
static void igb_check_vf_rate_limit(struct igb_adapter *);
@@ -2527,6 +2529,7 @@ static const struct net_device_ops igb_netdev_ops = {
.ndo_set_vf_vlan = igb_ndo_set_vf_vlan,
.ndo_set_vf_rate = igb_ndo_set_vf_bw,
.ndo_set_vf_spoofchk = igb_ndo_set_vf_spoofchk,
+ .ndo_set_vf_trust = igb_ndo_set_vf_trust,
.ndo_get_vf_config = igb_ndo_get_vf_config,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = igb_netpoll,
@@ -6383,6 +6386,9 @@ static int igb_vf_configure(struct igb_adapter *adapter, int vf)
/* By default spoof check is enabled for all VFs */
adapter->vf_data[vf].spoofchk_enabled = true;
+ /* By default VFs are not trusted */
+ adapter->vf_data[vf].trusted = false;
+
return 0;
}
@@ -6940,13 +6946,13 @@ static int igb_set_vf_mac_filter(struct igb_adapter *adapter, const int vf,
}
break;
case E1000_VF_MAC_FILTER_ADD:
- if (vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) {
+ if ((vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) &&
+ !vf_data->trusted) {
dev_warn(&pdev->dev,
"VF %d requested MAC filter but is administratively denied\n",
vf);
return -EINVAL;
}
-
if (!is_valid_ether_addr(addr)) {
dev_warn(&pdev->dev,
"VF %d attempted to set invalid MAC filter\n",
@@ -6998,7 +7004,8 @@ static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf)
int ret = 0;
if (!info) {
- if (vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) {
+ if ((vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) &&
+ !vf_data->trusted) {
dev_warn(&pdev->dev,
"VF %d attempted to override administratively set MAC address\nReload the VF driver to resume operations\n",
vf);
@@ -8934,6 +8941,22 @@ static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf,
return 0;
}
+static int igb_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
+{
+ struct igb_adapter *adapter = netdev_priv(netdev);
+
+ if (vf >= adapter->vfs_allocated_count)
+ return -EINVAL;
+ if (adapter->vf_data[vf].trusted == setting)
+ return 0;
+
+ adapter->vf_data[vf].trusted = setting;
+
+ dev_info(&adapter->pdev->dev, "VF %u is %strusted\n",
+ vf, setting ? "" : "not ");
+ return 0;
+}
+
static int igb_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi)
{
@@ -8947,6 +8970,7 @@ static int igb_ndo_get_vf_config(struct net_device *netdev,
ivi->vlan = adapter->vf_data[vf].pf_vlan;
ivi->qos = adapter->vf_data[vf].pf_qos;
ivi->spoofchk = adapter->vf_data[vf].spoofchk_enabled;
+ ivi->trusted = adapter->vf_data[vf].trusted;
return 0;
}