diff options
| author | david decotigny <david.decotigny@google.com> | 2011-11-16 12:15:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-16 23:14:02 -0500 |
| commit | ccf5ff69fbbd8d877377f5786369cf5aa78a15fc (patch) | |
| tree | 2c9a7ca29d9b3052fb952ac52445cfb05742a32c /include/linux/netdevice.h | |
| parent | 19b05f811341aaef3e5e22d2832aa2d8e0bad5ab (diff) | |
net: new counter for tx_timeout errors in sysfs
This adds the /sys/class/net/DEV/queues/Q/tx_timeout attribute
containing the total number of timeout events on the given queue. It
is always available with CONFIG_SYSFS, independently of
CONFIG_RPS/XPS.
Credits to Stephen Hemminger for a preliminary version of this patch.
Tested:
without CONFIG_SYSFS (compilation only)
with sysfs and without CONFIG_RPS & CONFIG_XPS
with sysfs and without CONFIG_RPS
with sysfs and without CONFIG_XPS
with defaults
Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 31da3bbe7b1b..4d5698aa828b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -532,7 +532,7 @@ struct netdev_queue { struct Qdisc *qdisc; unsigned long state; struct Qdisc *qdisc_sleeping; -#if defined(CONFIG_RPS) || defined(CONFIG_XPS) +#ifdef CONFIG_SYSFS struct kobject kobj; #endif #if defined(CONFIG_XPS) && defined(CONFIG_NUMA) @@ -547,6 +547,12 @@ struct netdev_queue { * please use this field instead of dev->trans_start */ unsigned long trans_start; + + /* + * Number of TX timeouts for this queue + * (/sys/class/net/DEV/Q/trans_timeout) + */ + unsigned long trans_timeout; } ____cacheline_aligned_in_smp; static inline int netdev_queue_numa_node_read(const struct netdev_queue *q) @@ -1109,9 +1115,11 @@ struct net_device { unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ -#if defined(CONFIG_RPS) || defined(CONFIG_XPS) +#ifdef CONFIG_SYSFS struct kset *queues_kset; +#endif +#ifdef CONFIG_RPS struct netdev_rx_queue *_rx; /* Number of RX queues allocated at register_netdev() time */ |