diff options
| author | David S. Miller <davem@davemloft.net> | 2020-04-23 22:43:20 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-23 22:43:20 +0300 |
| commit | 4c532b144fc28af43d11f0c12221db2a8c3ee4e3 (patch) | |
| tree | e225c4e8ede36140d00cdb3dc1aac52a3788935a /include/linux | |
| parent | e6acd2b6e84bf61fef42f99fe3d117fe75701629 (diff) | |
| parent | cf4058dbaa18bf8e55b7cb8c04e1c313298cd5b1 (diff) | |
| download | linux-4c532b144fc28af43d11f0c12221db2a8c3ee4e3.tar.xz | |
Merge branch 'net-napi-addition-of-napi_defer_hard_irqs'
Eric Dumazet says:
====================
net: napi: addition of napi_defer_hard_irqs
This patch series augments gro_glush_timeout feature with napi_defer_hard_irqs
As extensively described in first patch changelog, this can suppresss
the chit-chat traffic between NIC and host to signal interrupts and re-arming
them, since this can be an issue on high speed NIC with many queues.
The last patch in this series converts mlx4 TX completion to
napi_complete_done(), to enable this new mechanism.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdevice.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0750b54b3765..5a8d40f1ffe2 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -329,6 +329,7 @@ struct napi_struct { unsigned long state; int weight; + int defer_hard_irqs_count; unsigned long gro_bitmask; int (*poll)(struct napi_struct *, int); #ifdef CONFIG_NETPOLL @@ -1995,6 +1996,7 @@ struct net_device { struct bpf_prog __rcu *xdp_prog; unsigned long gro_flush_timeout; + int napi_defer_hard_irqs; rx_handler_func_t __rcu *rx_handler; void __rcu *rx_handler_data; |