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authorGovindarajulu Varadarajan <gvaradar@cisco.com>2017-05-22 12:19:48 -0700
committerDavid S. Miller <davem@davemloft.net>2017-05-23 11:05:45 -0400
commit9acfd1c02993b4fb11f08104e7166249925f25d5 (patch)
treeccf156dce08febbdad6edd0fa127bc8d2746d589 /drivers/net/ethernet/cisco/enic
parentf93e1cdcf42c1218e2a73be477d8ac21135e7f56 (diff)
downloadlinux-9acfd1c02993b4fb11f08104e7166249925f25d5.tar.gz
enic: unmask intr only when napi is complete
In case of busy poll, napi_complete_done returns false and does not dequeue napi. In this case do not unmask the intr. We are guaranteed napi is called again. This reduces unnecessary iowrites. Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cisco/enic')
-rw-r--r--drivers/net/ethernet/cisco/enic/enic_main.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 4b87beeabce1..6a9c8878aca0 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1537,13 +1537,12 @@ static int enic_poll(struct napi_struct *napi, int budget)
*/
enic_calc_int_moderation(enic, &enic->rq[0]);
- if (rq_work_done < rq_work_to_do) {
+ if ((rq_work_done < budget) && napi_complete_done(napi, rq_work_done)) {
/* Some work done, but not enough to stay in polling,
* exit polling
*/
- napi_complete_done(napi, rq_work_done);
if (enic->rx_coalesce_setting.use_adaptive_rx_coalesce)
enic_set_int_moderation(enic, &enic->rq[0]);
vnic_intr_unmask(&enic->intr[intr]);
@@ -1663,13 +1662,12 @@ static int enic_poll_msix_rq(struct napi_struct *napi, int budget)
*/
enic_calc_int_moderation(enic, &enic->rq[rq]);
- if (work_done < work_to_do) {
+ if ((work_done < budget) && napi_complete_done(napi, work_done)) {
/* Some work done, but not enough to stay in polling,
* exit polling
*/
- napi_complete_done(napi, work_done);
if (enic->rx_coalesce_setting.use_adaptive_rx_coalesce)
enic_set_int_moderation(enic, &enic->rq[rq]);
vnic_intr_unmask(&enic->intr[intr]);