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Date: Wed, 10 Feb 2010 03:44:05 -0800
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gospo@...hat.com,
Mitch Williams <mitch.a.williams@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH v3 4/5] rtnetlink: Add VF config code to rtnetlink
From: Williams, Mitch A <mitch.a.williams@...el.com>
Add code to allow rtnetlink clients to query and set VF information through
the PF driver.
Signed-off-by: Mitch Williams <mitch.a.williams@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
net/core/rtnetlink.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 67 insertions(+), 0 deletions(-)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 62f3878..42da96a 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -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:
--
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