forked from Minki/linux
[PATCH] s390: qeth multicast address registration fixed
[patch 3/7] s390: qeth multicast address registration fixed From: Klaus Dieter Wacker <kdwacker@de.ibm.com> - when running in Layer2 mode we don't have to register the multicast IP address but only group mac address. Therefore for Layer 2 devices it is enough to go through dev->mc_list list and register these entries. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth_main.c | 106 +++++++++++++++++++++++++++++++++++++++++++++--------------- 1 files changed, 80 insertions(+), 26 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Frank Pavlic
Jeff Garzik
parent
508cc2b0e0
commit
6c88ad2ded
@ -1,6 +1,6 @@
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/*
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*
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* linux/drivers/s390/net/qeth_main.c ($Revision: 1.235 $)
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* linux/drivers/s390/net/qeth_main.c ($Revision: 1.236 $)
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*
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* Linux on zSeries OSA Express and HiperSockets support
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*
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@ -12,7 +12,7 @@
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* Frank Pavlic (pavlic@de.ibm.com) and
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* Thomas Spatzier <tspat@de.ibm.com>
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*
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* $Revision: 1.235 $ $Date: 2005/05/04 20:19:18 $
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* $Revision: 1.236 $ $Date: 2005/05/04 20:19:18 $
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -72,7 +72,7 @@
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#include "qeth_eddp.h"
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#include "qeth_tso.h"
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#define VERSION_QETH_C "$Revision: 1.235 $"
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#define VERSION_QETH_C "$Revision: 1.236 $"
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static const char *version = "qeth S/390 OSA-Express driver";
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/**
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@ -602,11 +602,20 @@ __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
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int found = 0;
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list_for_each_entry(addr, &card->ip_list, entry) {
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if (card->options.layer2) {
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if ((addr->type == todo->type) &&
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(memcmp(&addr->mac, &todo->mac,
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OSA_ADDR_LEN) == 0)) {
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found = 1;
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break;
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}
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continue;
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}
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if ((addr->proto == QETH_PROT_IPV4) &&
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(todo->proto == QETH_PROT_IPV4) &&
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(addr->type == todo->type) &&
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(addr->u.a4.addr == todo->u.a4.addr) &&
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(addr->u.a4.mask == todo->u.a4.mask) ){
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(addr->u.a4.mask == todo->u.a4.mask)) {
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found = 1;
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break;
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}
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@ -615,12 +624,12 @@ __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
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(addr->type == todo->type) &&
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(addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
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(memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
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sizeof(struct in6_addr)) == 0)) {
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sizeof(struct in6_addr)) == 0)) {
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found = 1;
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break;
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}
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}
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if (found){
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if (found) {
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addr->users += todo->users;
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if (addr->users <= 0){
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*__addr = addr;
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@ -632,7 +641,7 @@ __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
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return 0;
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}
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}
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if (todo->users > 0){
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if (todo->users > 0) {
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/* for VIPA and RXIP limit refcount to 1 */
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if (todo->type != QETH_IP_TYPE_NORMAL)
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todo->users = 1;
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@ -682,12 +691,22 @@ __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
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if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
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(tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
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return 0;
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if (card->options.layer2) {
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if ((tmp->type == addr->type) &&
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(tmp->is_multicast == addr->is_multicast) &&
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(memcmp(&tmp->mac, &addr->mac,
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OSA_ADDR_LEN) == 0)) {
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found = 1;
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break;
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}
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continue;
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}
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if ((tmp->proto == QETH_PROT_IPV4) &&
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(addr->proto == QETH_PROT_IPV4) &&
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(tmp->type == addr->type) &&
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(tmp->is_multicast == addr->is_multicast) &&
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(tmp->u.a4.addr == addr->u.a4.addr) &&
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(tmp->u.a4.mask == addr->u.a4.mask) ){
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(tmp->u.a4.mask == addr->u.a4.mask)) {
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found = 1;
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break;
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}
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@ -697,7 +716,7 @@ __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
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(tmp->is_multicast == addr->is_multicast) &&
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(tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
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(memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
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sizeof(struct in6_addr)) == 0) ){
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sizeof(struct in6_addr)) == 0)) {
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found = 1;
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break;
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}
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@ -707,7 +726,7 @@ __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
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tmp->users += addr->users;
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else
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tmp->users += add? 1:-1;
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if (tmp->users == 0){
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if (tmp->users == 0) {
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list_del(&tmp->entry);
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kfree(tmp);
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}
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@ -738,12 +757,15 @@ qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
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unsigned long flags;
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int rc = 0;
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QETH_DBF_TEXT(trace,4,"delip");
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if (addr->proto == QETH_PROT_IPV4)
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QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
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QETH_DBF_TEXT(trace, 4, "delip");
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if (card->options.layer2)
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QETH_DBF_HEX(trace, 4, &addr->mac, 6);
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else if (addr->proto == QETH_PROT_IPV4)
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QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
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else {
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QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
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QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
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QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
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QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
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}
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spin_lock_irqsave(&card->ip_lock, flags);
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rc = __qeth_insert_ip_todo(card, addr, 0);
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@ -757,12 +779,14 @@ qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
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unsigned long flags;
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int rc = 0;
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QETH_DBF_TEXT(trace,4,"addip");
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if (addr->proto == QETH_PROT_IPV4)
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QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
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QETH_DBF_TEXT(trace, 4, "addip");
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if (card->options.layer2)
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QETH_DBF_HEX(trace, 4, &addr->mac, 6);
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else if (addr->proto == QETH_PROT_IPV4)
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QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
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else {
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QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
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QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
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QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
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QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
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}
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spin_lock_irqsave(&card->ip_lock, flags);
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rc = __qeth_insert_ip_todo(card, addr, 1);
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@ -851,6 +875,7 @@ qeth_set_ip_addr_list(struct qeth_card *card)
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static void qeth_delete_mc_addresses(struct qeth_card *);
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static void qeth_add_multicast_ipv4(struct qeth_card *);
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static void qeth_layer2_add_multicast(struct qeth_card *);
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#ifdef CONFIG_QETH_IPV6
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static void qeth_add_multicast_ipv6(struct qeth_card *);
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#endif
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@ -5301,8 +5326,7 @@ qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
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struct qeth_ipaddr *addr;
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QETH_DBF_TEXT(trace, 4, "frvaddr4");
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if (!card->vlangrp)
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return;
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rcu_read_lock();
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in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
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if (!in_dev)
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@ -5330,8 +5354,7 @@ qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
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struct qeth_ipaddr *addr;
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QETH_DBF_TEXT(trace, 4, "frvaddr6");
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if (!card->vlangrp)
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return;
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in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
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if (!in6_dev)
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return;
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@ -5350,6 +5373,15 @@ qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
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#endif /* CONFIG_QETH_IPV6 */
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}
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static void
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qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
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{
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if (card->options.layer2 || !card->vlangrp)
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return;
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qeth_free_vlan_addresses4(card, vid);
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qeth_free_vlan_addresses6(card, vid);
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}
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static int
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qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
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struct qeth_reply *reply,
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@ -5432,8 +5464,7 @@ qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
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qeth_free_vlan_skbs(card, vid);
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spin_lock_irqsave(&card->vlanlock, flags);
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/* unregister IP addresses of vlan device */
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qeth_free_vlan_addresses4(card, vid);
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qeth_free_vlan_addresses6(card, vid);
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qeth_free_vlan_addresses(card, vid);
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if (card->vlangrp)
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card->vlangrp->vlan_devices[vid] = NULL;
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spin_unlock_irqrestore(&card->vlanlock, flags);
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@ -5456,10 +5487,15 @@ qeth_set_multicast_list(struct net_device *dev)
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QETH_DBF_TEXT(trace,3,"setmulti");
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qeth_delete_mc_addresses(card);
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if (card->options.layer2) {
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qeth_layer2_add_multicast(card);
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goto out;
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}
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qeth_add_multicast_ipv4(card);
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#ifdef CONFIG_QETH_IPV6
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qeth_add_multicast_ipv6(card);
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#endif
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out:
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if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
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schedule_work(&card->kernel_thread_starter);
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}
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@ -5669,6 +5705,24 @@ qeth_add_multicast_ipv4(struct qeth_card *card)
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in_dev_put(in4_dev);
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}
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static void
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qeth_layer2_add_multicast(struct qeth_card *card)
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{
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struct qeth_ipaddr *ipm;
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struct dev_mc_list *dm;
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QETH_DBF_TEXT(trace,4,"L2addmc");
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for (dm = card->dev->mc_list; dm; dm = dm->next) {
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ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
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if (!ipm)
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continue;
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memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
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ipm->is_multicast = 1;
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if (!qeth_add_ip(card, ipm))
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kfree(ipm);
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}
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}
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#ifdef CONFIG_QETH_IPV6
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static inline void
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qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
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