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| author | Kan Liang <kan.liang@intel.com> | 2016-02-19 09:24:02 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-02-19 22:54:09 -0500 |
| commit | 421797b1aa363cb897f29f7d365e068dc9d9db81 (patch) | |
| tree | 50c3851083719e586bb6c83a58f57261dab1163b /include/linux/ethtool.h | |
| parent | ac2c7ad0e5d6030452c9af2fafd192e17fd04264 (diff) | |
| download | linux-stable-421797b1aa363cb897f29f7d365e068dc9d9db81.tar.gz linux-stable-421797b1aa363cb897f29f7d365e068dc9d9db81.tar.bz2 linux-stable-421797b1aa363cb897f29f7d365e068dc9d9db81.zip | |
net/ethtool: support get coalesce per queue
This patch implements sub command ETHTOOL_GCOALESCE for ioctl
ETHTOOL_PERQUEUE. It introduces an interface get_per_queue_coalesce to
get coalesce of each masked queue from device driver. Then the interrupt
coalescing parameters will be copied back to user space one by one.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Reviewed-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/ethtool.h')
| -rw-r--r-- | include/linux/ethtool.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 653dc9c4ebac..de56600023a7 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -201,6 +201,11 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) * @get_module_eeprom: Get the eeprom information from the plug-in module * @get_eee: Get Energy-Efficient (EEE) supported and status. * @set_eee: Set EEE status (enable/disable) as well as LPI timers. + * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue. + * It must check that the given queue number is valid. If neither a RX nor + * a TX queue has this number, return -EINVAL. If only a RX queue or a TX + * queue has this number, set the inapplicable fields to ~0 and return 0. + * Returns a negative error code or zero. * * All operations are optional (i.e. the function pointer may be set * to %NULL) and callers must take this into account. Callers must @@ -279,7 +284,8 @@ struct ethtool_ops { const struct ethtool_tunable *, void *); int (*set_tunable)(struct net_device *, const struct ethtool_tunable *, const void *); - + int (*get_per_queue_coalesce)(struct net_device *, u32, + struct ethtool_coalesce *); }; #endif /* _LINUX_ETHTOOL_H */ |