Commit 5f8444a3 authored by Greg Rose's avatar Greg Rose Committed by Jeff Kirsher
Browse files

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: default avatarGreg Rose <gregory.v.rose@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent a90b412c

include/linux/if_link.h

+10 −0
Original line number Diff line number Diff line
@@ -279,6 +279,7 @@ enum { 
	IFLA_VF_MAC,		/* Hardware queue specific attributes */

	IFLA_VF_VLAN,

	IFLA_VF_TX_RATE,	/* TX Bandwidth Allocation */

	IFLA_VF_SPOOFCHK,	/* Spoof Checking on/off switch */

	__IFLA_VF_MAX,

};
@@ -300,13 +301,22 @@ struct ifla_vf_tx_rate { 
	__u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */

};



struct ifla_vf_spoofchk {

	__u32 vf;

	__u32 setting;

};

#ifdef __KERNEL__



/* We don't want this structure exposed to user space */

struct ifla_vf_info {

	__u32 vf;

	__u8 mac[32];

	__u32 vlan;

	__u32 qos;

	__u32 tx_rate;

	__u32 spoofchk;

};

#endif



/* VF ports management section

 *

include/linux/netdevice.h

+3 −0
Original line number Diff line number Diff line
@@ -781,6 +781,7 @@ struct netdev_tc_txq { 
 * int (*ndo_set_vf_mac)(struct net_device *dev, int vf, u8* mac);

 * int (*ndo_set_vf_vlan)(struct net_device *dev, int vf, u16 vlan, u8 qos);

 * int (*ndo_set_vf_tx_rate)(struct net_device *dev, int vf, int rate);

 * int (*ndo_set_vf_spoofchk)(struct net_device *dev, int vf, bool setting);

 * int (*ndo_get_vf_config)(struct net_device *dev,

 *			    int vf, struct ifla_vf_info *ivf);

 * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
@@ -900,6 +901,8 @@ struct net_device_ops { 
						   int queue, u16 vlan, u8 qos);

	int			(*ndo_set_vf_tx_rate)(struct net_device *dev,

						      int vf, int rate);

	int			(*ndo_set_vf_spoofchk)(struct net_device *dev,

						       int vf, bool setting);

	int			(*ndo_get_vf_config)(struct net_device *dev,

						     int vf,

						     struct ifla_vf_info *ivf);

net/core/rtnetlink.c

+30 −3
Original line number Diff line number Diff line
@@ -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;

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