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Commit 8055a89c authored by Thomas Graf's avatar Thomas Graf Committed by Jesse Gross
Browse files

openvswitch: Pass datapath into userspace queue functions 



Allows removing the net and dp_ifindex argument and simplify the
code.

Signed-off-by: default avatarThomas Graf <tgraf@suug.ch>
Signed-off-by: default avatarJesse Gross <jesse@nicira.com>
parent 44da5ae5

net/openvswitch/datapath.c

+14 −20
Original line number Diff line number Diff line
@@ -108,10 +108,9 @@ int lockdep_ovsl_is_held(void) 
#endif



static struct vport *new_vport(const struct vport_parms *);

static int queue_gso_packets(struct net *, int dp_ifindex, struct sk_buff *,

static int queue_gso_packets(struct datapath *dp, struct sk_buff *,

			     const struct dp_upcall_info *);

static int queue_userspace_packet(struct net *, int dp_ifindex,

				  struct sk_buff *,

static int queue_userspace_packet(struct datapath *dp, struct sk_buff *,

				  const struct dp_upcall_info *);



/* Must be called with rcu_read_lock or ovs_mutex. */
@@ -277,7 +276,6 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb, 
		  const struct dp_upcall_info *upcall_info)

{

	struct dp_stats_percpu *stats;

	int dp_ifindex;

	int err;



	if (upcall_info->portid == 0) {
@@ -285,16 +283,10 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb, 
		goto err;

	}



	dp_ifindex = get_dpifindex(dp);

	if (!dp_ifindex) {

		err = -ENODEV;

		goto err;

	}



	if (!skb_is_gso(skb))

		err = queue_userspace_packet(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);

		err = queue_userspace_packet(dp, skb, upcall_info);

	else

		err = queue_gso_packets(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);

		err = queue_gso_packets(dp, skb, upcall_info);

	if (err)

		goto err;
@@ -310,8 +302,7 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb, 
	return err;

}



static int queue_gso_packets(struct net *net, int dp_ifindex,

			     struct sk_buff *skb,

static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,

			     const struct dp_upcall_info *upcall_info)

{

	unsigned short gso_type = skb_shinfo(skb)->gso_type;
@@ -327,7 +318,7 @@ static int queue_gso_packets(struct net *net, int dp_ifindex, 
	/* Queue all of the segments. */

	skb = segs;

	do {

		err = queue_userspace_packet(net, dp_ifindex, skb, upcall_info);

		err = queue_userspace_packet(dp, skb, upcall_info);

		if (err)

			break;
@@ -394,8 +385,7 @@ static size_t upcall_msg_size(const struct sk_buff *skb, 
	return size;

}



static int queue_userspace_packet(struct net *net, int dp_ifindex,

				  struct sk_buff *skb,

static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,

				  const struct dp_upcall_info *upcall_info)

{

	struct ovs_header *upcall;
@@ -403,11 +393,15 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex, 
	struct sk_buff *user_skb; /* to be queued to userspace */

	struct nlattr *nla;

	struct genl_info info = {

		.dst_sk = net->genl_sock,

		.dst_sk = ovs_dp_get_net(dp)->genl_sock,

		.snd_portid = upcall_info->portid,

	};

	size_t len;

	int err;

	int err, dp_ifindex;



	dp_ifindex = get_dpifindex(dp);

	if (!dp_ifindex)

		return -ENODEV;



	if (vlan_tx_tag_present(skb)) {

		nskb = skb_clone(skb, GFP_ATOMIC);
@@ -452,7 +446,7 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex, 
	skb_copy_and_csum_dev(skb, nla_data(nla));



	genlmsg_end(user_skb, upcall);

	err = genlmsg_unicast(net, user_skb, upcall_info->portid);

	err = genlmsg_unicast(ovs_dp_get_net(dp), user_skb, upcall_info->portid);



out:

	kfree_skb(nskb);