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Commit 6c85f2bd authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

team: add multiqueue support 



Largely copied from bonding code.

Signed-off-by: default avatarJiri Pirko <jiri@resnulli.us>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8a540ff9

drivers/net/team/team.c

+60 −5
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <net/rtnetlink.h>

#include <net/genetlink.h>

#include <net/netlink.h>

#include <net/sch_generic.h>

#include <linux/if_team.h>



#define DRV_NAME "team"
@@ -1121,6 +1122,22 @@ static const struct team_option team_options[] = { 
	},

};



static struct lock_class_key team_netdev_xmit_lock_key;

static struct lock_class_key team_netdev_addr_lock_key;



static void team_set_lockdep_class_one(struct net_device *dev,

				       struct netdev_queue *txq,

				       void *unused)

{

	lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key);

}



static void team_set_lockdep_class(struct net_device *dev)

{

	lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key);

	netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL);

}



static int team_init(struct net_device *dev)

{

	struct team *team = netdev_priv(dev);
@@ -1148,6 +1165,8 @@ static int team_init(struct net_device *dev) 
		goto err_options_register;

	netif_carrier_off(dev);



	team_set_lockdep_class(dev);



	return 0;



err_options_register:
@@ -1216,6 +1235,29 @@ static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 
	return NETDEV_TX_OK;

}



static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb)

{

	/*

	 * This helper function exists to help dev_pick_tx get the correct

	 * destination queue.  Using a helper function skips a call to

	 * skb_tx_hash and will put the skbs in the queue we expect on their

	 * way down to the team driver.

	 */

	u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;



	/*

	 * Save the original txq to restore before passing to the driver

	 */

	qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;



	if (unlikely(txq >= dev->real_num_tx_queues)) {

		do {

			txq -= dev->real_num_tx_queues;

		} while (txq >= dev->real_num_tx_queues);

	}

	return txq;

}



static void team_change_rx_flags(struct net_device *dev, int change)

{

	struct team *team = netdev_priv(dev);
@@ -1469,6 +1511,7 @@ static const struct net_device_ops team_netdev_ops = { 
	.ndo_open		= team_open,

	.ndo_stop		= team_close,

	.ndo_start_xmit		= team_xmit,

	.ndo_select_queue	= team_select_queue,

	.ndo_change_rx_flags	= team_change_rx_flags,

	.ndo_set_rx_mode	= team_set_rx_mode,

	.ndo_set_mac_address	= team_set_mac_address,
@@ -1543,12 +1586,24 @@ static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 
	return 0;

}



static unsigned int team_get_num_tx_queues(void)

{

	return TEAM_DEFAULT_NUM_TX_QUEUES;

}



static unsigned int team_get_num_rx_queues(void)

{

	return TEAM_DEFAULT_NUM_RX_QUEUES;

}



static struct rtnl_link_ops team_link_ops __read_mostly = {

	.kind			= DRV_NAME,

	.priv_size		= sizeof(struct team),

	.setup			= team_setup,

	.newlink		= team_newlink,

	.validate		= team_validate,

	.get_num_tx_queues	= team_get_num_tx_queues,

	.get_num_rx_queues	= team_get_num_rx_queues,

};

include/linux/if_team.h

+8 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#ifdef __KERNEL__



#include <linux/netpoll.h>

#include <net/sch_generic.h>



struct team_pcpu_stats {

	u64			rx_packets;
@@ -98,6 +99,10 @@ static inline void team_netpoll_send_skb(struct team_port *port, 
static inline int team_dev_queue_xmit(struct team *team, struct team_port *port,

				      struct sk_buff *skb)

{

	BUILD_BUG_ON(sizeof(skb->queue_mapping) !=

		     sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping));

	skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping);



	skb->dev = port->dev;

	if (unlikely(netpoll_tx_running(port->dev))) {

		team_netpoll_send_skb(port, skb);
@@ -236,6 +241,9 @@ extern void team_options_unregister(struct team *team, 
extern int team_mode_register(const struct team_mode *mode);

extern void team_mode_unregister(const struct team_mode *mode);



#define TEAM_DEFAULT_NUM_TX_QUEUES 16

#define TEAM_DEFAULT_NUM_RX_QUEUES 16



#endif /* __KERNEL__ */



#define TEAM_STRING_MAX_LEN 32