Module Name: src
Committed By: msaitoh
Date: Tue Sep 7 03:48:01 UTC 2021
Modified Files:
src/sys/dev/pci/ixgbe: ix_txrx.c
Log Message:
Sprinkle __predict_false() in the RX path.
To generate a diff of this commit:
cvs rdiff -u -r1.90 -r1.91 src/sys/dev/pci/ixgbe/ix_txrx.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/ixgbe/ix_txrx.c
diff -u src/sys/dev/pci/ixgbe/ix_txrx.c:1.90 src/sys/dev/pci/ixgbe/ix_txrx.c:1.91
--- src/sys/dev/pci/ixgbe/ix_txrx.c:1.90 Fri Sep 3 08:57:58 2021
+++ src/sys/dev/pci/ixgbe/ix_txrx.c Tue Sep 7 03:48:01 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: ix_txrx.c,v 1.90 2021/09/03 08:57:58 msaitoh Exp $ */
+/* $NetBSD: ix_txrx.c,v 1.91 2021/09/07 03:48:01 msaitoh Exp $ */
/******************************************************************************
@@ -64,7 +64,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ix_txrx.c,v 1.90 2021/09/03 08:57:58 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ix_txrx.c,v 1.91 2021/09/07 03:48:01 msaitoh Exp $");
#include "opt_inet.h"
#include "opt_inet6.h"
@@ -1350,7 +1350,7 @@ ixgbe_refresh_mbufs(struct rx_ring *rxr,
while (i != limit) {
rxbuf = &rxr->rx_buffers[i];
- if (rxbuf->buf == NULL) {
+ if (__predict_false(rxbuf->buf == NULL)) {
mp = ixgbe_getcl();
if (mp == NULL) {
rxr->no_mbuf.ev_count++;
@@ -1369,7 +1369,7 @@ ixgbe_refresh_mbufs(struct rx_ring *rxr,
ixgbe_dmamap_unload(rxr->ptag, rxbuf->pmap);
error = bus_dmamap_load_mbuf(rxr->ptag->dt_dmat,
rxbuf->pmap, mp, BUS_DMA_NOWAIT);
- if (error != 0) {
+ if (__predict_false(error != 0)) {
device_printf(adapter->dev, "Refresh mbufs: "
"payload dmamap load failure - %d\n",
error);
@@ -1881,7 +1881,7 @@ ixgbe_rxeof(struct ix_queue *que)
newmp = ixgbe_getcl();
else
newmp = NULL;
- if (newmp == NULL) {
+ if (__predict_false(newmp == NULL)) {
rxr->no_mbuf.ev_count++;
/*
* Descriptor initialization is already done by the
