[patch F18/rawhide] team: update to latest net-next
Jiri Pirko
jpirko at redhat.com
Thu Mar 7 13:46:59 UTC 2013
Update team driver to latest net-next.
Please add following config option:
CONFIG_NET_TEAM_MODE_RANDOM=m
Split patches available here:
http://people.redhat.com/jpirko/f18_team_update_5/
Jiri Pirko (2):
team: introduce two default team_modeop functions and use them in
modes
team: introduce random mode
drivers/net/team/Kconfig | 12 ++++++
drivers/net/team/Makefile | 1 +
drivers/net/team/team.c | 19 +++++++--
drivers/net/team/team_mode_broadcast.c | 14 +------
drivers/net/team/team_mode_random.c | 71 +++++++++++++++++++++++++++++++++
drivers/net/team/team_mode_roundrobin.c | 36 ++---------------
include/linux/if_team.h | 25 +++++++++++-
7 files changed, 129 insertions(+), 49 deletions(-)
create mode 100644 drivers/net/team/team_mode_random.c
Signed-off-by: Jiri Pirko <jpirko at redhat.com>
diff --git a/drivers/net/team/Kconfig b/drivers/net/team/Kconfig
index 6b08bd4..a3e36e5 100644
--- a/drivers/net/team/Kconfig
+++ b/drivers/net/team/Kconfig
@@ -38,6 +38,18 @@ config NET_TEAM_MODE_ROUNDROBIN
To compile this team mode as a module, choose M here: the module
will be called team_mode_roundrobin.
+config NET_TEAM_MODE_RANDOM
+ tristate "Random mode support"
+ depends on NET_TEAM
+ ---help---
+ Basic mode where port used for transmitting packets is selected
+ randomly.
+
+ All added ports are setup to have team's device address.
+
+ To compile this team mode as a module, choose M here: the module
+ will be called team_mode_random.
+
config NET_TEAM_MODE_ACTIVEBACKUP
tristate "Active-backup mode support"
depends on NET_TEAM
diff --git a/drivers/net/team/Makefile b/drivers/net/team/Makefile
index 9757630..c57e858 100644
--- a/drivers/net/team/Makefile
+++ b/drivers/net/team/Makefile
@@ -5,5 +5,6 @@
obj-$(CONFIG_NET_TEAM) += team.o
obj-$(CONFIG_NET_TEAM_MODE_BROADCAST) += team_mode_broadcast.o
obj-$(CONFIG_NET_TEAM_MODE_ROUNDROBIN) += team_mode_roundrobin.o
+obj-$(CONFIG_NET_TEAM_MODE_RANDOM) += team_mode_random.o
obj-$(CONFIG_NET_TEAM_MODE_ACTIVEBACKUP) += team_mode_activebackup.o
obj-$(CONFIG_NET_TEAM_MODE_LOADBALANCE) += team_mode_loadbalance.o
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 9e68014..6110a0c 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -73,11 +73,24 @@ static int team_port_set_orig_dev_addr(struct team_port *port)
return __set_port_dev_addr(port->dev, port->orig.dev_addr);
}
-int team_port_set_team_dev_addr(struct team_port *port)
+static int team_port_set_team_dev_addr(struct team *team,
+ struct team_port *port)
+{
+ return __set_port_dev_addr(port->dev, team->dev->dev_addr);
+}
+
+int team_modeop_port_enter(struct team *team, struct team_port *port)
+{
+ return team_port_set_team_dev_addr(team, port);
+}
+EXPORT_SYMBOL(team_modeop_port_enter);
+
+void team_modeop_port_change_dev_addr(struct team *team,
+ struct team_port *port)
{
- return __set_port_dev_addr(port->dev, port->team->dev->dev_addr);
+ team_port_set_team_dev_addr(team, port);
}
-EXPORT_SYMBOL(team_port_set_team_dev_addr);
+EXPORT_SYMBOL(team_modeop_port_change_dev_addr);
static void team_refresh_port_linkup(struct team_port *port)
{
diff --git a/drivers/net/team/team_mode_broadcast.c b/drivers/net/team/team_mode_broadcast.c
index c5db428..c366cd2 100644
--- a/drivers/net/team/team_mode_broadcast.c
+++ b/drivers/net/team/team_mode_broadcast.c
@@ -46,20 +46,10 @@ static bool bc_transmit(struct team *team, struct sk_buff *skb)
return sum_ret;
}
-static int bc_port_enter(struct team *team, struct team_port *port)
-{
- return team_port_set_team_dev_addr(port);
-}
-
-static void bc_port_change_dev_addr(struct team *team, struct team_port *port)
-{
- team_port_set_team_dev_addr(port);
-}
-
static const struct team_mode_ops bc_mode_ops = {
.transmit = bc_transmit,
- .port_enter = bc_port_enter,
- .port_change_dev_addr = bc_port_change_dev_addr,
+ .port_enter = team_modeop_port_enter,
+ .port_change_dev_addr = team_modeop_port_change_dev_addr,
};
static const struct team_mode bc_mode = {
diff --git a/drivers/net/team/team_mode_random.c b/drivers/net/team/team_mode_random.c
new file mode 100644
index 0000000..9eabfaa
--- /dev/null
+++ b/drivers/net/team/team_mode_random.c
@@ -0,0 +1,71 @@
+/*
+ * drivers/net/team/team_mode_random.c - Random mode for team
+ * Copyright (c) 2013 Jiri Pirko <jiri at resnulli.us>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/reciprocal_div.h>
+#include <linux/if_team.h>
+
+static u32 random_N(unsigned int N)
+{
+ return reciprocal_divide(random32(), N);
+}
+
+static bool rnd_transmit(struct team *team, struct sk_buff *skb)
+{
+ struct team_port *port;
+ int port_index;
+
+ port_index = random_N(team->en_port_count);
+ port = team_get_port_by_index_rcu(team, port_index);
+ port = team_get_first_port_txable_rcu(team, port);
+ if (unlikely(!port))
+ goto drop;
+ if (team_dev_queue_xmit(team, port, skb))
+ return false;
+ return true;
+
+drop:
+ dev_kfree_skb_any(skb);
+ return false;
+}
+
+static const struct team_mode_ops rnd_mode_ops = {
+ .transmit = rnd_transmit,
+ .port_enter = team_modeop_port_enter,
+ .port_change_dev_addr = team_modeop_port_change_dev_addr,
+};
+
+static const struct team_mode rnd_mode = {
+ .kind = "random",
+ .owner = THIS_MODULE,
+ .ops = &rnd_mode_ops,
+};
+
+static int __init rnd_init_module(void)
+{
+ return team_mode_register(&rnd_mode);
+}
+
+static void __exit rnd_cleanup_module(void)
+{
+ team_mode_unregister(&rnd_mode);
+}
+
+module_init(rnd_init_module);
+module_exit(rnd_cleanup_module);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jiri Pirko <jiri at resnulli.us>");
+MODULE_DESCRIPTION("Random mode for team");
+MODULE_ALIAS("team-mode-random");
diff --git a/drivers/net/team/team_mode_roundrobin.c b/drivers/net/team/team_mode_roundrobin.c
index 105135a..d268e4d 100644
--- a/drivers/net/team/team_mode_roundrobin.c
+++ b/drivers/net/team/team_mode_roundrobin.c
@@ -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))
@@ -64,20 +44,10 @@ drop:
return false;
}
-static int rr_port_enter(struct team *team, struct team_port *port)
-{
- return team_port_set_team_dev_addr(port);
-}
-
-static void rr_port_change_dev_addr(struct team *team, struct team_port *port)
-{
- team_port_set_team_dev_addr(port);
-}
-
static const struct team_mode_ops rr_mode_ops = {
.transmit = rr_transmit,
- .port_enter = rr_port_enter,
- .port_change_dev_addr = rr_port_change_dev_addr,
+ .port_enter = team_modeop_port_enter,
+ .port_change_dev_addr = team_modeop_port_change_dev_addr,
};
static const struct team_mode rr_mode = {
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 4648d80..90fc919 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -112,6 +112,10 @@ struct team_mode_ops {
void (*port_disabled)(struct team *team, struct team_port *port);
};
+extern int team_modeop_port_enter(struct team *team, struct team_port *port);
+extern void team_modeop_port_change_dev_addr(struct team *team,
+ struct team_port *port);
+
enum team_option_type {
TEAM_OPTION_TYPE_U32,
TEAM_OPTION_TYPE_STRING,
@@ -238,7 +242,26 @@ static inline struct team_port *team_get_port_by_index_rcu(struct team *team,
return NULL;
}
-extern int team_port_set_team_dev_addr(struct team_port *port);
+static inline struct team_port *
+team_get_first_port_txable_rcu(struct team *team, struct team_port *port)
+{
+ struct team_port *cur;
+
+ if (likely(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;
+}
+
extern int team_options_register(struct team *team,
const struct team_option *option,
size_t option_count);
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