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authorEric Dumazet <edumazet@google.com>2015-11-18 06:31:03 -0800
committerDavid S. Miller <davem@davemloft.net>2015-11-18 16:17:42 -0500
commit93d05d4a320cb16712bb3d57a9658f395d8cecb9 (patch)
tree65c0340484128f9e5d9e732b92bc22b458faae94 /drivers/net/ethernet/myricom
parentnet: napi_hash_del() returns a boolean status (diff)
downloadlinux-dev-93d05d4a320cb16712bb3d57a9658f395d8cecb9.tar.xz
linux-dev-93d05d4a320cb16712bb3d57a9658f395d8cecb9.zip
net: provide generic busy polling to all NAPI drivers
NAPI drivers no longer need to observe a particular protocol to benefit from busy polling (CONFIG_NET_RX_BUSY_POLL=y) napi_hash_add() and napi_hash_del() are automatically called from core networking stack, respectively from netif_napi_add() and netif_napi_del() This patch depends on free_netdev() and netif_napi_del() being called from process context, which seems to be the norm. Drivers might still prefer to call napi_hash_del() on their own, since they might combine all the rcu grace periods into a single one, knowing their NAPI structures lifetime, while core networking stack has no idea of a possible combining. Once this patch proves to not bring serious regressions, we will cleanup drivers to either remove napi_hash_del() or provide appropriate rcu grace periods combining. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--drivers/net/ethernet/myricom/myri10ge/myri10ge.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index acf866147d65..270c9eeb7ab6 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -3814,7 +3814,6 @@ static int myri10ge_alloc_slices(struct myri10ge_priv *mgp)
ss->dev = mgp->dev;
netif_napi_add(ss->dev, &ss->napi, myri10ge_poll,
myri10ge_napi_weight);
- napi_hash_add(&ss->napi);
}
return 0;
abort: