git: 109a12abcb57 - stable/15 - ena: Swap cleanup order
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Date: Sat, 01 Aug 2026 14:20:27 UTC
The branch stable/15 has been updated by akiyano:
URL: https://cgit.FreeBSD.org/src/commit/?id=109a12abcb57ca8919e0142fe12608e25c07aace
commit 109a12abcb57ca8919e0142fe12608e25c07aace
Author: Arthur Kiyanovski <akiyano@amazon.com>
AuthorDate: 2026-07-14 20:20:06 +0000
Commit: Arthur Kiyanovski <akiyano@FreeBSD.org>
CommitDate: 2026-08-01 14:06:36 +0000
ena: Swap cleanup order
As RX processing is heavier than TX completions processing, swap the
order and process TX completions first, in order to avoid starving the
completions and causing potential missing TX completions.
Submitted by: Ofir Tabachnik <ofirt@amazon.com>
MFC after: 2 weeks
Sponsored by: Amazon, Inc.
Reviewed by: cperciva
Differential Revision: https://reviews.freebsd.org/D58239
(cherry picked from commit f08def9ed97f45700eb0611a3fd9240210c9303e)
---
sys/dev/ena/ena_datapath.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sys/dev/ena/ena_datapath.c b/sys/dev/ena/ena_datapath.c
index 23cbf62b5143..4fbdb8daaf58 100644
--- a/sys/dev/ena/ena_datapath.c
+++ b/sys/dev/ena/ena_datapath.c
@@ -100,8 +100,8 @@ ena_cleanup(void *arg, int pending)
atomic_store_8(&rx_ring->first_interrupt, 1);
for (i = 0; i < ENA_CLEAN_BUDGET; ++i) {
- rx_again = ena_rx_cleanup(rx_ring);
tx_again = ena_tx_cleanup(tx_ring);
+ rx_again = ena_rx_cleanup(rx_ring);
if (unlikely(((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0) ||
(ENA_FLAG_ISSET(ENA_FLAG_TRIGGER_RESET, adapter))))