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rtnetlink: Add VF config code to rtnetlink 

Add code to allow rtnetlink clients to query and set VF information through
the PF driver.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Williams, Mitch A 2010-02-10 01:44:05 +00:00 committed by David S. Miller
parent 95c26df829
commit ebc08a6f47
1 changed files with 67 additions and 0 deletions
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67
net/core/rtnetlink.c
View File

@ -35,6 +35,7 @@
#include <linux/security.h>
#include <linux/mutex.h>
#include <linux/if_addr.h>
#include <linux/pci.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@ -580,6 +581,15 @@ static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
a->tx_compressed = b->tx_compressed;
};
static inline int rtnl_vfinfo_size(const struct net_device *dev)
{
if (dev->dev.parent && dev_is_pci(dev->dev.parent))
return dev_num_vf(dev->dev.parent) *
sizeof(struct ifla_vf_info);
else
return 0;
}
static inline size_t if_nlmsg_size(const struct net_device *dev)
{
return NLMSG_ALIGN(sizeof(struct ifinfomsg))
@ -597,6 +607,8 @@ static inline size_t if_nlmsg_size(const struct net_device *dev)
+ nla_total_size(4) /* IFLA_MASTER */
+ nla_total_size(1) /* IFLA_OPERSTATE */
+ nla_total_size(1) /* IFLA_LINKMODE */
+ nla_total_size(4) /* IFLA_NUM_VF */
+ nla_total_size(rtnl_vfinfo_size(dev)) /* IFLA_VFINFO */
+ rtnl_link_get_size(dev); /* IFLA_LINKINFO */
}
@ -665,6 +677,17 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
stats = dev_get_stats(dev);
copy_rtnl_link_stats(nla_data(attr), stats);
if (dev->netdev_ops->ndo_get_vf_config && dev->dev.parent) {
int i;
struct ifla_vf_info ivi;
NLA_PUT_U32(skb, IFLA_NUM_VF, dev_num_vf(dev->dev.parent));
for (i = 0; i < dev_num_vf(dev->dev.parent); i++) {
if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
break;
NLA_PUT(skb, IFLA_VFINFO, sizeof(ivi), &ivi);
}
}
if (dev->rtnl_link_ops) {
if (rtnl_link_fill(skb, dev) < 0)
goto nla_put_failure;
@ -725,6 +748,12 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_LINKINFO] = { .type = NLA_NESTED },
[IFLA_NET_NS_PID] = { .type = NLA_U32 },
[IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
[IFLA_VF_MAC] = { .type = NLA_BINARY,
.len = sizeof(struct ifla_vf_mac) },
[IFLA_VF_VLAN] = { .type = NLA_BINARY,
.len = sizeof(struct ifla_vf_vlan) },
[IFLA_VF_TX_RATE] = { .type = NLA_BINARY,
.len = sizeof(struct ifla_vf_tx_rate) },
};
EXPORT_SYMBOL(ifla_policy);
@ -898,6 +927,44 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
write_unlock_bh(&dev_base_lock);
}
if (tb[IFLA_VF_MAC]) {
struct ifla_vf_mac *ivm;
ivm = nla_data(tb[IFLA_VF_MAC]);
write_lock_bh(&dev_base_lock);
if (ops->ndo_set_vf_mac)
err = ops->ndo_set_vf_mac(dev, ivm->vf, ivm->mac);
write_unlock_bh(&dev_base_lock);
if (err < 0)
goto errout;
modified = 1;
}
if (tb[IFLA_VF_VLAN]) {
struct ifla_vf_vlan *ivv;
ivv = nla_data(tb[IFLA_VF_VLAN]);
write_lock_bh(&dev_base_lock);
if (ops->ndo_set_vf_vlan)
err = ops->ndo_set_vf_vlan(dev, ivv->vf,
(u16)ivv->vlan,
(u8)ivv->qos);
write_unlock_bh(&dev_base_lock);
if (err < 0)
goto errout;
modified = 1;
}
err = 0;
if (tb[IFLA_VF_TX_RATE]) {
struct ifla_vf_tx_rate *ivt;
ivt = nla_data(tb[IFLA_VF_TX_RATE]);
write_lock_bh(&dev_base_lock);
if (ops->ndo_set_vf_tx_rate)
err = ops->ndo_set_vf_tx_rate(dev, ivt->vf, ivt->rate);
write_unlock_bh(&dev_base_lock);
if (err < 0)
goto errout;
modified = 1;
}
err = 0;
errout: