commit e0efb01b44d45a6dff5f944238f6de3255afcc1b
author Bhaskar Valaboju <bhaskarv@codeaurora.org> Tue Feb 27 13:48:12 2018 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Wed Mar 14 02:45:02 2018 -0700
tree 8eb356e0264bbfba0cad559ce3eb31926b2252dd
parent afaf9ab96d0d3f52e55f5711b7cc59f0126a53c4

[edma] Drop low priority traffic in RSS disable and ACL enable case

Changes include adding new value (2) to edma_disable_rss sysctl interface
to disable RSS and also to enable ACL.  It also indicates that Rx priority
from switch is different between RSS enable case and RSS disable, ACL enable
case.

Change-Id: I09d8f6eb245f70010fcb4a7223d3d2d870e86ec8
Signed-off-by: Bhaskar Valaboju <bhaskarv@codeaurora.org>

edma.c

diff --git a/edma.c b/edma.c
index 1953d51..5b7fe69 100644
--- a/edma.c
+++ b/edma.c
@@ -699,7 +699,7 @@
 			 */
 			priority = (rd->rrd1 >> EDMA_RRD_PRIORITY_SHIFT)
 				& EDMA_RRD_PRIORITY_MASK;
-			if (likely(!priority && !edma_cinfo->page_mode && (num_rfds <= 1))) {
+			if (likely((priority <= edma_cinfo->rx_low_priority) && !edma_cinfo->page_mode && (num_rfds <= 1))) {
 				rfd_avail = (count + sw_next_to_clean - hw_next_to_clean - 1) & (count - 1);
 				if (rfd_avail < EDMA_RFD_AVAIL_THR) {
 					sw_desc->flags |= EDMA_SW_DESC_FLAG_SKB_REUSE;