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team: introduce random mode

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As suggested by Eric Dumazet, allow user to select mode which chooses
TX port randomly. Functionality should be more of less similar to
round-robin mode with even lower overhead.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2013-03-06 01:31:13 +00:00
committed by David S. Miller
parent acbba0d0f8
commit 753f993911
5 changed files with 105 additions and 21 deletions
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22
drivers/net/team/team_mode_roundrobin.c
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@@ -25,26 +25,6 @@ static struct rr_priv *rr_priv(struct team *team)
return (struct rr_priv *) &team->mode_priv;
}
static struct team_port *__get_first_port_up(struct team *team,
struct team_port *port)
{
struct team_port *cur;
if (team_port_txable(port))
return port;
cur = port;
list_for_each_entry_continue_rcu(cur, &team->port_list, list)
if (team_port_txable(port))
return cur;
list_for_each_entry_rcu(cur, &team->port_list, list) {
if (cur == port)
break;
if (team_port_txable(port))
return cur;
}
return NULL;
}
static bool rr_transmit(struct team *team, struct sk_buff *skb)
{
struct team_port *port;
@@ -52,7 +32,7 @@ static bool rr_transmit(struct team *team, struct sk_buff *skb)
port_index = rr_priv(team)->sent_packets++ % team->en_port_count;
port = team_get_port_by_index_rcu(team, port_index);
port = __get_first_port_up(team, port);
port = team_get_first_port_txable_rcu(team, port);
if (unlikely(!port))
goto drop;
if (team_dev_queue_xmit(team, port, skb))