[src/trunk]: src/sys Added a kernel option to change the number of processing...

[yamaguchi <yamaguchi%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6c765dac4302
branches:  trunk
changeset: 379208:6c765dac4302
user:      yamaguchi <yamaguchi%NetBSD.org@localhost>
date:      Wed May 19 03:44:46 2021 +0000

description:
Added a kernel option to change the number of processing packets
at one pppoeintr()

diffstat:

 sys/conf/files     |   3 ++-
 sys/net/if_pppoe.c |  17 +++++++++++++----
 2 files changed, 15 insertions(+), 5 deletions(-)

diffs (76 lines):

diff -r f4644fa31d78 -r 6c765dac4302 sys/conf/files
--- a/sys/conf/files    Wed May 19 03:35:27 2021 +0000
+++ b/sys/conf/files    Wed May 19 03:44:46 2021 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files,v 1.1283 2021/05/17 04:07:43 yamaguchi Exp $
+#      $NetBSD: files,v 1.1284 2021/05/19 03:44:46 yamaguchi Exp $
 #      @(#)files.newconf       7.5 (Berkeley) 5/10/93
 
 version        20171118
@@ -289,6 +289,7 @@ defflag     opt_ppp.h               PPP_DEFLATE PPP_BSDCO
                                                # compression, enable pppd
                                                # packet filtering support
 defflag opt_pppoe.h            PPPOE_SERVER PPPOE_DEBUG
+defparam opt_pppoe.h           PPPOE_DEQUEUE_MAXLEN
 
 defparam opt_sppp.h            SPPP_KEEPALIVE_INTERVAL
                                SPPP_NORECV_TIME
diff -r f4644fa31d78 -r 6c765dac4302 sys/net/if_pppoe.c
--- a/sys/net/if_pppoe.c        Wed May 19 03:35:27 2021 +0000
+++ b/sys/net/if_pppoe.c        Wed May 19 03:44:46 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_pppoe.c,v 1.175 2021/05/19 03:35:27 yamaguchi Exp $ */
+/* $NetBSD: if_pppoe.c,v 1.176 2021/05/19 03:44:46 yamaguchi Exp $ */
 
 /*
  * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_pppoe.c,v 1.175 2021/05/19 03:35:27 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_pppoe.c,v 1.176 2021/05/19 03:44:46 yamaguchi Exp $");
 
 #ifdef _KERNEL_OPT
 #include "pppoe.h"
@@ -76,6 +76,10 @@
 #define PPPOE_MPSAFE   1
 #endif
 
+#ifndef PPPOE_DEQUEUE_MAXLEN
+#define PPPOE_DEQUEUE_MAXLEN   IFQ_MAXLEN
+#endif
+
 struct pppoehdr {
        uint8_t vertype;
        uint8_t code;
@@ -598,7 +602,7 @@ pppoeintr(void)
 
        SOFTNET_LOCK_UNLESS_NET_MPSAFE();
 
-       for (i = 0; i < IFQ_MAXLEN; i++) {
+       for (i = 0; i < PPPOE_DEQUEUE_MAXLEN; i++) {
                IFQ_LOCK(&ppoediscinq);
                IF_DEQUEUE(&ppoediscinq, m);
                IFQ_UNLOCK(&ppoediscinq);
@@ -607,7 +611,7 @@ pppoeintr(void)
                pppoe_disc_input(m);
        }
 
-       for (i = 0; i < IFQ_MAXLEN; i++) {
+       for (i = 0; i < PPPOE_DEQUEUE_MAXLEN; i++) {
                IFQ_LOCK(&ppoeinq);
                IF_DEQUEUE(&ppoeinq, m);
                IFQ_UNLOCK(&ppoeinq);
@@ -616,6 +620,11 @@ pppoeintr(void)
                pppoe_data_input(m);
        }
 
+#if PPPOE_DEQUEUE_MAXLEN < IFQ_MAXLEN
+       if (!IF_IS_EMPTY(&ppoediscinq) || !IF_IS_EMPTY(&ppoeinq))
+               softint_schedule(pppoe_softintr);
+#endif
+
        SOFTNET_UNLOCK_UNLESS_NET_MPSAFE();
 }