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| author | Govindarajulu Varadarajan <[email protected]> | 2014-06-23 10:38:04 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-06-23 21:32:19 +0000 |
| commit | 14747cd977195a8aae13d0b1ad021e33c8786afe (patch) | |
| tree | 25f8225f9c5f9cf8d9abd29f98417b193d44a94e /lib/net_utils.c | |
| parent | enic: fix lockdep around devcmd_lock (diff) | |
| download | kernel-14747cd977195a8aae13d0b1ad021e33c8786afe.tar.gz kernel-14747cd977195a8aae13d0b1ad021e33c8786afe.zip | |
enic: add low latency socket busy_poll support
This patch adds support for low latency busy_poll.
* Introduce drivers ndo_busy_poll function enic_busy_poll, which is called by
socket waiting for data.
* Introduce locking between napi_poll nad busy_poll
* enic_busy_poll cleans up all the rx pkts possible. While in busy_poll, rq
holds the state ENIC_POLL_STATE_POLL. While in napi_poll, rq holds the state
ENIC_POLL_STATE_NAPI.
* in napi_poll we return if we are in busy_poll. Incase of INTx & msix, we just
service wq and return if busy_poll is going on.
Signed-off-by: Govindarajulu Varadarajan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'lib/net_utils.c')
0 files changed, 0 insertions, 0 deletions