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Commit 9acfd1c0 authored by Govindarajulu Varadarajan's avatar Govindarajulu Varadarajan Committed by David S. Miller
Browse files

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: default avatarGovindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f93e1cdc

drivers/net/ethernet/cisco/enic/enic_main.c

+2 −4
Original line number Diff line number Diff line
@@ -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]);