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path: root/drivers/s390/net/qeth_l3_main.c
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Diffstat (limited to 'drivers/s390/net/qeth_l3_main.c')
-rw-r--r--drivers/s390/net/qeth_l3_main.c489
1 files changed, 256 insertions, 233 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index fd69da3fa6b..14e0b5810e8 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1,6 +1,4 @@
/*
- * drivers/s390/net/qeth_l3_main.c
- *
* Copyright IBM Corp. 2007, 2009
* Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
* Frank Pavlic <fpavlic@de.ibm.com>,
@@ -13,6 +11,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/bitops.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/kernel.h>
@@ -23,10 +22,14 @@
#include <linux/inetdevice.h>
#include <linux/igmp.h>
#include <linux/slab.h>
+#include <linux/if_vlan.h>
#include <net/ip.h>
#include <net/arp.h>
+#include <net/route.h>
+#include <net/ip6_fib.h>
#include <net/ip6_checksum.h>
+#include <net/iucv/af_iucv.h>
#include "qeth_l3.h"
@@ -60,7 +63,7 @@ void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
{
int count = 0, rc = 0;
- int in[4];
+ unsigned int in[4];
char c;
rc = sscanf(buf, "%u.%u.%u.%u%c",
@@ -265,7 +268,7 @@ static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
}
}
-static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
+int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
{
unsigned long flags;
int rc = 0;
@@ -284,7 +287,7 @@ static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
return rc;
}
-static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
+int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
{
unsigned long flags;
int rc = 0;
@@ -303,7 +306,7 @@ static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
}
-static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
+struct qeth_ipaddr *qeth_l3_get_addr_buffer(
enum qeth_prot_versions prot)
{
struct qeth_ipaddr *addr;
@@ -419,7 +422,7 @@ again:
list_splice(&fail_list, &card->ip_list);
}
-static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
+void qeth_l3_set_ip_addr_list(struct qeth_card *card)
{
struct list_head *tbd_list;
struct qeth_ipaddr *todo, *addr;
@@ -436,7 +439,7 @@ static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
spin_lock_irqsave(&card->ip_lock, flags);
tbd_list = card->ip_tbd_list;
- card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
+ card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
if (!card->ip_tbd_list) {
QETH_CARD_TEXT(card, 0, "silnomem");
card->ip_tbd_list = tbd_list;
@@ -620,7 +623,7 @@ static int qeth_l3_send_setrouting(struct qeth_card *card,
return rc;
}
-static void qeth_l3_correct_routing_type(struct qeth_card *card,
+static int qeth_l3_correct_routing_type(struct qeth_card *card,
enum qeth_routing_types *type, enum qeth_prot_versions prot)
{
if (card->info.type == QETH_CARD_TYPE_IQD) {
@@ -629,7 +632,7 @@ static void qeth_l3_correct_routing_type(struct qeth_card *card,
case PRIMARY_CONNECTOR:
case SECONDARY_CONNECTOR:
case MULTICAST_ROUTER:
- return;
+ return 0;
default:
goto out_inval;
}
@@ -638,17 +641,18 @@ static void qeth_l3_correct_routing_type(struct qeth_card *card,
case NO_ROUTER:
case PRIMARY_ROUTER:
case SECONDARY_ROUTER:
- return;
+ return 0;
case MULTICAST_ROUTER:
if (qeth_is_ipafunc_supported(card, prot,
IPA_OSA_MC_ROUTER))
- return;
+ return 0;
default:
goto out_inval;
}
}
out_inval:
*type = NO_ROUTER;
+ return -EINVAL;
}
int qeth_l3_setrouting_v4(struct qeth_card *card)
@@ -657,8 +661,10 @@ int qeth_l3_setrouting_v4(struct qeth_card *card)
QETH_CARD_TEXT(card, 3, "setrtg4");
- qeth_l3_correct_routing_type(card, &card->options.route4.type,
+ rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
QETH_PROT_IPV4);
+ if (rc)
+ return rc;
rc = qeth_l3_send_setrouting(card, card->options.route4.type,
QETH_PROT_IPV4);
@@ -680,8 +686,10 @@ int qeth_l3_setrouting_v6(struct qeth_card *card)
if (!qeth_is_supported(card, IPA_IPV6))
return 0;
- qeth_l3_correct_routing_type(card, &card->options.route6.type,
+ rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
QETH_PROT_IPV6);
+ if (rc)
+ return rc;
rc = qeth_l3_send_setrouting(card, card->options.route6.type,
QETH_PROT_IPV6);
@@ -791,6 +799,7 @@ int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
rc = -EEXIST;
spin_unlock_irqrestore(&card->ip_lock, flags);
if (rc) {
+ kfree(ipaddr);
return rc;
}
if (!qeth_l3_add_ip(card, ipaddr))
@@ -855,6 +864,7 @@ int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
rc = -EEXIST;
spin_unlock_irqrestore(&card->ip_lock, flags);
if (rc) {
+ kfree(ipaddr);
return rc;
}
if (!qeth_l3_add_ip(card, ipaddr))
@@ -971,57 +981,6 @@ static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
return ct | QETH_CAST_UNICAST;
}
-static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
- __u32 mode)
-{
- int rc;
- struct qeth_cmd_buffer *iob;
- struct qeth_ipa_cmd *cmd;
-
- QETH_CARD_TEXT(card, 4, "adpmode");
-
- iob = qeth_get_adapter_cmd(card, command,
- sizeof(struct qeth_ipacmd_setadpparms));
- cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
- cmd->data.setadapterparms.data.mode = mode;
- rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
- NULL);
- return rc;
-}
-
-static int qeth_l3_setadapter_hstr(struct qeth_card *card)
-{
- int rc;
-
- QETH_CARD_TEXT(card, 4, "adphstr");
-
- if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
- rc = qeth_l3_send_setadp_mode(card,
- IPA_SETADP_SET_BROADCAST_MODE,
- card->options.broadcast_mode);
- if (rc)
- QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
- "device %s: x%x\n",
- CARD_BUS_ID(card), rc);
- rc = qeth_l3_send_setadp_mode(card,
- IPA_SETADP_ALTER_MAC_ADDRESS,
- card->options.macaddr_mode);
- if (rc)
- QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
- "device %s: x%x\n", CARD_BUS_ID(card), rc);
- return rc;
- }
- if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
- QETH_DBF_MESSAGE(2, "set adapter parameters not available "
- "to set broadcast mode, using ALLRINGS "
- "on device %s:\n", CARD_BUS_ID(card));
- if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
- QETH_DBF_MESSAGE(2, "set adapter parameters not available "
- "to set macaddr mode, using NONCANONICAL "
- "on device %s:\n", CARD_BUS_ID(card));
- return 0;
-}
-
static int qeth_l3_setadapter_parms(struct qeth_card *card)
{
int rc;
@@ -1047,10 +1006,6 @@ static int qeth_l3_setadapter_parms(struct qeth_card *card)
" address failed\n");
}
- if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
- (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
- rc = qeth_l3_setadapter_hstr(card);
-
return rc;
}
@@ -1412,7 +1367,7 @@ static int qeth_l3_send_checksum_command(struct qeth_card *card)
return 0;
}
-int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
+static int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
{
int rc = 0;
@@ -1499,7 +1454,8 @@ static int qeth_l3_start_ipassists(struct qeth_card *card)
{
QETH_CARD_TEXT(card, 3, "strtipas");
- qeth_set_access_ctrl_online(card); /* go on*/
+ if (qeth_set_access_ctrl_online(card, 0))
+ return -EIO;
qeth_l3_start_ipa_arp_processing(card); /* go on*/
qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
qeth_l3_start_ipa_source_mac(card); /* go on*/
@@ -1523,7 +1479,7 @@ static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
memcpy(card->dev->dev_addr,
cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
else
- random_ether_addr(card->dev->dev_addr);
+ eth_random_addr(card->dev->dev_addr);
return 0;
}
@@ -1666,10 +1622,7 @@ qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
struct net_device *dev)
{
- if (dev->type == ARPHRD_IEEE802_TR)
- ip_tr_mc_map(ipm, mac);
- else
- ip_eth_mc_map(ipm, mac);
+ ip_eth_mc_map(ipm, mac);
}
static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
@@ -1693,29 +1646,28 @@ static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
}
}
+/* called with rcu_read_lock */
static void qeth_l3_add_vlan_mc(struct qeth_card *card)
{
struct in_device *in_dev;
- struct vlan_group *vg;
- int i;
+ u16 vid;
QETH_CARD_TEXT(card, 4, "addmcvl");
- if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
+ if (!qeth_is_supported(card, IPA_FULL_VLAN))
return;
- vg = card->vlangrp;
- for (i = 0; i < VLAN_N_VID; i++) {
- struct net_device *netdev = vlan_group_get_device(vg, i);
+ for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
+ struct net_device *netdev;
+
+ netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
+ vid);
if (netdev == NULL ||
!(netdev->flags & IFF_UP))
continue;
- in_dev = in_dev_get(netdev);
+ in_dev = __in_dev_get_rcu(netdev);
if (!in_dev)
continue;
- rcu_read_lock();
qeth_l3_add_mc(card, in_dev);
- rcu_read_unlock();
- in_dev_put(in_dev);
}
}
@@ -1724,14 +1676,14 @@ static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
struct in_device *in4_dev;
QETH_CARD_TEXT(card, 4, "chkmcv4");
- in4_dev = in_dev_get(card->dev);
- if (in4_dev == NULL)
- return;
rcu_read_lock();
+ in4_dev = __in_dev_get_rcu(card->dev);
+ if (in4_dev == NULL)
+ goto unlock;
qeth_l3_add_mc(card, in4_dev);
qeth_l3_add_vlan_mc(card);
+unlock:
rcu_read_unlock();
- in_dev_put(in4_dev);
}
#ifdef CONFIG_QETH_IPV6
@@ -1756,19 +1708,21 @@ static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
}
}
+/* called with rcu_read_lock */
static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
{
struct inet6_dev *in_dev;
- struct vlan_group *vg;
- int i;
+ u16 vid;
QETH_CARD_TEXT(card, 4, "admc6vl");
- if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
+ if (!qeth_is_supported(card, IPA_FULL_VLAN))
return;
- vg = card->vlangrp;
- for (i = 0; i < VLAN_N_VID; i++) {
- struct net_device *netdev = vlan_group_get_device(vg, i);
+ for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
+ struct net_device *netdev;
+
+ netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
+ vid);
if (netdev == NULL ||
!(netdev->flags & IFF_UP))
continue;
@@ -1792,10 +1746,12 @@ static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
in6_dev = in6_dev_get(card->dev);
if (in6_dev == NULL)
return;
+ rcu_read_lock();
read_lock_bh(&in6_dev->lock);
qeth_l3_add_mc6(card, in6_dev);
qeth_l3_add_vlan_mc6(card);
read_unlock_bh(&in6_dev->lock);
+ rcu_read_unlock();
in6_dev_put(in6_dev);
}
#endif /* CONFIG_QETH_IPV6 */
@@ -1806,10 +1762,14 @@ static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
struct in_device *in_dev;
struct in_ifaddr *ifa;
struct qeth_ipaddr *addr;
+ struct net_device *netdev;
QETH_CARD_TEXT(card, 4, "frvaddr4");
- in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
+ netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
+ if (!netdev)
+ return;
+ in_dev = in_dev_get(netdev);
if (!in_dev)
return;
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
@@ -1832,10 +1792,14 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
struct inet6_dev *in6_dev;
struct inet6_ifaddr *ifa;
struct qeth_ipaddr *addr;
+ struct net_device *netdev;
QETH_CARD_TEXT(card, 4, "frvaddr6");
- in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
+ netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
+ if (!netdev)
+ return;
+ in6_dev = in6_dev_get(netdev);
if (!in6_dev)
return;
list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
@@ -1856,30 +1820,23 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
unsigned short vid)
{
- if (!card->vlangrp)
- return;
+ rcu_read_lock();
qeth_l3_free_vlan_addresses4(card, vid);
qeth_l3_free_vlan_addresses6(card, vid);
+ rcu_read_unlock();
}
-static void qeth_l3_vlan_rx_register(struct net_device *dev,
- struct vlan_group *grp)
+static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
+ __be16 proto, u16 vid)
{
struct qeth_card *card = dev->ml_priv;
- unsigned long flags;
- QETH_CARD_TEXT(card, 4, "vlanreg");
- spin_lock_irqsave(&card->vlanlock, flags);
- card->vlangrp = grp;
- spin_unlock_irqrestore(&card->vlanlock, flags);
-}
-
-static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
-{
- return;
+ set_bit(vid, card->active_vlans);
+ return 0;
}
-static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
+static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
+ __be16 proto, u16 vid)
{
struct qeth_card *card = dev->ml_priv;
unsigned long flags;
@@ -1887,14 +1844,15 @@ static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
QETH_CARD_TEXT(card, 3, "kidREC");
- return;
+ return 0;
}
spin_lock_irqsave(&card->vlanlock, flags);
/* unregister IP addresses of vlan device */
qeth_l3_free_vlan_addresses(card, vid);
- vlan_group_set_device(card->vlangrp, vid, NULL);
+ clear_bit(vid, card->active_vlans);
spin_unlock_irqrestore(&card->vlanlock, flags);
qeth_l3_set_multicast_list(card->dev);
+ return 0;
}
static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
@@ -1921,8 +1879,6 @@ static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
#endif
case __constant_htons(ETH_P_IP):
ip_hdr = (struct iphdr *)skb->data;
- (card->dev->type == ARPHRD_IEEE802_TR) ?
- ip_tr_mc_map(ip_hdr->daddr, tg_addr):
ip_eth_mc_map(ip_hdr->daddr, tg_addr);
break;
default:
@@ -1958,12 +1914,7 @@ static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
tg_addr, "FAKELL", card->dev->addr_len);
}
-#ifdef CONFIG_TR
- if (card->dev->type == ARPHRD_IEEE802_TR)
- skb->protocol = tr_type_trans(skb, card->dev);
- else
-#endif
- skb->protocol = eth_type_trans(skb, card->dev);
+ skb->protocol = eth_type_trans(skb, card->dev);
if (hdr->hdr.l3.ext_flags &
(QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
@@ -1996,12 +1947,13 @@ static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
__u16 vlan_tag = 0;
int is_vlan;
unsigned int len;
+ __u16 magic;
*done = 0;
- BUG_ON(!budget);
+ WARN_ON_ONCE(!budget);
while (budget) {
skb = qeth_core_get_next_skb(card,
- card->qdio.in_q->bufs[card->rx.b_index].buffer,
+ &card->qdio.in_q->bufs[card->rx.b_index],
&card->rx.b_element, &card->rx.e_offset, &hdr);
if (!skb) {
*done = 1;
@@ -2010,14 +1962,27 @@ static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
skb->dev = card->dev;
switch (hdr->hdr.l3.id) {
case QETH_HEADER_TYPE_LAYER3:
- is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
+ magic = *(__u16 *)skb->data;
+ if ((card->info.type == QETH_CARD_TYPE_IQD) &&
+ (magic == ETH_P_AF_IUCV)) {
+ skb->protocol = ETH_P_AF_IUCV;
+ skb->pkt_type = PACKET_HOST;
+ skb->mac_header = NET_SKB_PAD;
+ skb->dev = card->dev;
+ len = skb->len;
+ card->dev->header_ops->create(skb, card->dev, 0,
+ card->dev->dev_addr, "FAKELL",
+ card->dev->addr_len);
+ netif_receive_skb(skb);
+ } else {
+ is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
&vlan_tag);
- len = skb->len;
- if (is_vlan && !card->options.sniffer)
- vlan_gro_receive(&card->napi, card->vlangrp,
- vlan_tag, skb);
- else
+ len = skb->len;
+ if (is_vlan && !card->options.sniffer)
+ __vlan_hwaccel_put_tag(skb,
+ htons(ETH_P_8021Q), vlan_tag);
napi_gro_receive(&card->napi, skb);
+ }
break;
case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
skb->pkt_type = PACKET_HOST;
@@ -2118,15 +2083,16 @@ static int qeth_l3_verify_vlan_dev(struct net_device *dev,
struct qeth_card *card)
{
int rc = 0;
- struct vlan_group *vg;
- int i;
+ u16 vid;
- vg = card->vlangrp;
- if (!vg)
- return rc;
+ for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
+ struct net_device *netdev;
- for (i = 0; i < VLAN_N_VID; i++) {
- if (vlan_group_get_device(vg, i) == dev) {
+ rcu_read_lock();
+ netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
+ vid);
+ rcu_read_unlock();
+ if (netdev == dev) {
rc = QETH_VLAN_CARD;
break;
}
@@ -2416,7 +2382,7 @@ static int qeth_l3_arp_query_cb(struct qeth_card *card,
if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
- cmd->hdr.return_code = -ENOMEM;
+ cmd->hdr.return_code = IPA_RC_ENOMEM;
goto out_error;
}
@@ -2731,6 +2697,9 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
mii_data->phy_id,
mii_data->reg_num);
break;
+ case SIOC_QETH_QUERY_OAT:
+ rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
+ break;
default:
rc = -EOPNOTSUPP;
}
@@ -2742,9 +2711,17 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
{
int cast_type = RTN_UNSPEC;
+ struct neighbour *n = NULL;
+ struct dst_entry *dst;
- if (skb_dst(skb) && skb_dst(skb)->neighbour) {
- cast_type = skb_dst(skb)->neighbour->type;
+ rcu_read_lock();
+ dst = skb_dst(skb);
+ if (dst)
+ n = dst_neigh_lookup_skb(dst, skb);
+ if (n) {
+ cast_type = n->type;
+ rcu_read_unlock();
+ neigh_release(n);
if ((cast_type == RTN_BROADCAST) ||
(cast_type == RTN_MULTICAST) ||
(cast_type == RTN_ANYCAST))
@@ -2752,6 +2729,8 @@ int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
else
return RTN_UNSPEC;
}
+ rcu_read_unlock();
+
/* try something else */
if (skb->protocol == ETH_P_IPV6)
return (skb_network_header(skb)[24] == 0xff) ?
@@ -2784,9 +2763,35 @@ int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
return cast_type;
}
+static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
+ struct qeth_hdr *hdr, struct sk_buff *skb)
+{
+ char daddr[16];
+ struct af_iucv_trans_hdr *iucv_hdr;
+
+ skb_pull(skb, 14);
+ card->dev->header_ops->create(skb, card->dev, 0,
+ card->dev->dev_addr, card->dev->dev_addr,
+ card->dev->addr_len);
+ skb_pull(skb, 14);
+ iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
+ memset(hdr, 0, sizeof(struct qeth_hdr));
+ hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
+ hdr->hdr.l3.ext_flags = 0;
+ hdr->hdr.l3.length = skb->len;
+ hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
+ memset(daddr, 0, sizeof(daddr));
+ daddr[0] = 0xfe;
+ daddr[1] = 0x80;
+ memcpy(&daddr[8], iucv_hdr->destUserID, 8);
+ memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
+}
+
static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
struct sk_buff *skb, int ipv, int cast_type)
{
+ struct dst_entry *dst;
+
memset(hdr, 0, sizeof(struct qeth_hdr));
hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
hdr->hdr.l3.ext_flags = 0;
@@ -2795,7 +2800,7 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
* before we're going to overwrite this location with next hop ip.
* v6 uses passthrough, v4 sets the tag in the QDIO header.
*/
- if (card->vlangrp && vlan_tx_tag_present(skb)) {
+ if (vlan_tx_tag_present(skb)) {
if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
else
@@ -2804,39 +2809,34 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
}
hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
+
+ rcu_read_lock();
+ dst = skb_dst(skb);
if (ipv == 4) {
+ struct rtable *rt = (struct rtable *) dst;
+ __be32 *pkey = &ip_hdr(skb)->daddr;
+
+ if (rt->rt_gateway)
+ pkey = &rt->rt_gateway;
+
/* IPv4 */
hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
memset(hdr->hdr.l3.dest_addr, 0, 12);
- if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
- *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
- *((u32 *) skb_dst(skb)->neighbour->primary_key);
- } else {
- /* fill in destination address used in ip header */
- *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
- ip_hdr(skb)->daddr;
- }
+ *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
} else if (ipv == 6) {
+ struct rt6_info *rt = (struct rt6_info *) dst;
+ struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
+
+ if (!ipv6_addr_any(&rt->rt6i_gateway))
+ pkey = &rt->rt6i_gateway;
+
/* IPv6 */
hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
if (card->info.type == QETH_CARD_TYPE_IQD)
hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
- if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
- memcpy(hdr->hdr.l3.dest_addr,
- skb_dst(skb)->neighbour->primary_key, 16);
- } else {
- /* fill in destination address used in ip header */
- memcpy(hdr->hdr.l3.dest_addr,
- &ipv6_hdr(skb)->daddr, 16);
- }
+ memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
} else {
- /* passthrough */
- if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
- !memcmp(skb->data + sizeof(struct qeth_hdr) +
- sizeof(__u16), skb->dev->broadcast, 6)) {
- hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
- QETH_HDR_PASSTHRU;
- } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
+ if (!memcmp(skb->data + sizeof(struct qeth_hdr),
skb->dev->broadcast, 6)) {
/* broadcast? */
hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
@@ -2847,6 +2847,7 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
}
}
+ rcu_read_unlock();
}
static inline void qeth_l3_hdr_csum(struct qeth_card *card,
@@ -2908,7 +2909,9 @@ static inline int qeth_l3_tso_elements(struct sk_buff *skb)
tcp_hdr(skb)->doff * 4;
int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
- elements += skb_shinfo(skb)->nr_frags;
+
+ elements += qeth_get_elements_for_frags(skb);
+
return elements;
}
@@ -2923,15 +2926,21 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct sk_buff *new_skb = NULL;
int ipv = qeth_get_ip_version(skb);
int cast_type = qeth_l3_get_cast_type(card, skb);
- struct qeth_qdio_out_q *queue = card->qdio.out_qs
- [qeth_get_priority_queue(card, skb, ipv, cast_type)];
+ struct qeth_qdio_out_q *queue =
+ card->qdio.out_qs[card->qdio.do_prio_queueing
+ || (cast_type && card->info.is_multicast_different) ?
+ qeth_get_priority_queue(card, skb, ipv, cast_type) :
+ card->qdio.default_out_queue];
int tx_bytes = skb->len;
bool large_send;
int data_offset = -1;
int nr_frags;
- if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
- card->options.sniffer)
+ if (((card->info.type == QETH_CARD_TYPE_IQD) &&
+ (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
+ ((card->options.cq == QETH_CQ_ENABLED) &&
+ (skb->protocol != ETH_P_AF_IUCV)))) ||
+ card->options.sniffer)
goto tx_drop;
if ((card->state != CARD_STATE_UP) || !card->lan_online) {
@@ -2953,7 +2962,10 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
(skb_shinfo(skb)->nr_frags == 0)) {
new_skb = skb;
- data_offset = ETH_HLEN;
+ if (new_skb->protocol == ETH_P_AF_IUCV)
+ data_offset = 0;
+ else
+ data_offset = ETH_HLEN;
hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
if (!hdr)
goto tx_drop;
@@ -2971,14 +2983,10 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb_pull(new_skb, ETH_HLEN);
} else {
if (ipv == 4) {
- if (card->dev->type == ARPHRD_IEEE802_TR)
- skb_pull(new_skb, TR_HLEN);
- else
- skb_pull(new_skb, ETH_HLEN);
+ skb_pull(new_skb, ETH_HLEN);
}
- if (ipv != 4 && card->vlangrp &&
- vlan_tx_tag_present(new_skb)) {
+ if (ipv != 4 && vlan_tx_tag_present(new_skb)) {
skb_push(new_skb, VLAN_HLEN);
skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
skb_copy_to_linear_data_offset(new_skb, 4,
@@ -2988,7 +2996,6 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
tag = (u16 *)(new_skb->data + 12);
*tag = __constant_htons(ETH_P_8021Q);
*(tag + 1) = htons(vlan_tx_tag_get(new_skb));
- new_skb->vlan_tci = 0;
}
}
@@ -3020,17 +3027,20 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
qeth_l3_fill_header(card, hdr, new_skb, ipv,
cast_type);
} else {
- qeth_l3_fill_header(card, hdr, new_skb, ipv,
- cast_type);
- hdr->hdr.l3.length = new_skb->len - data_offset;
+ if (new_skb->protocol == ETH_P_AF_IUCV)
+ qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
+ else {
+ qeth_l3_fill_header(card, hdr, new_skb, ipv,
+ cast_type);
+ hdr->hdr.l3.length = new_skb->len - data_offset;
+ }
}
if (skb->ip_summed == CHECKSUM_PARTIAL)
qeth_l3_hdr_csum(card, hdr, new_skb);
}
- elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
- elements_needed);
+ elems = qeth_get_elements_no(card, new_skb, elements_needed);
if (!elems) {
if (data_offset >= 0)
kmem_cache_free(qeth_core_header_cache, hdr);
@@ -3048,7 +3058,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
else
len = sizeof(struct qeth_hdr_layer3);
- if (qeth_hdr_chk_and_bounce(new_skb, len))
+ if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
goto tx_drop;
rc = qeth_do_send_packet(card, queue, new_skb, hdr,
elements_needed);
@@ -3148,7 +3158,8 @@ static int qeth_l3_stop(struct net_device *dev)
return 0;
}
-static u32 qeth_l3_fix_features(struct net_device *dev, u32 features)
+static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
+ netdev_features_t features)
{
struct qeth_card *card = dev->ml_priv;
@@ -3162,7 +3173,8 @@ static u32 qeth_l3_fix_features(struct net_device *dev, u32 features)
return features;
}
-static int qeth_l3_set_features(struct net_device *dev, u32 features)
+static int qeth_l3_set_features(struct net_device *dev,
+ netdev_features_t features)
{
struct qeth_card *card = dev->ml_priv;
u32 changed = dev->features ^ features;
@@ -3221,15 +3233,14 @@ static const struct net_device_ops qeth_l3_netdev_ops = {
.ndo_get_stats = qeth_get_stats,
.ndo_start_xmit = qeth_l3_hard_start_xmit,
.ndo_validate_addr = eth_validate_addr,
- .ndo_set_multicast_list = qeth_l3_set_multicast_list,
- .ndo_do_ioctl = qeth_l3_do_ioctl,
- .ndo_change_mtu = qeth_change_mtu,
- .ndo_fix_features = qeth_l3_fix_features,
- .ndo_set_features = qeth_l3_set_features,
- .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
+ .ndo_set_rx_mode = qeth_l3_set_multicast_list,
+ .ndo_do_ioctl = qeth_l3_do_ioctl,
+ .ndo_change_mtu = qeth_change_mtu,
+ .ndo_fix_features = qeth_l3_fix_features,
+ .ndo_set_features = qeth_l3_set_features,
.ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
- .ndo_tx_timeout = qeth_tx_timeout,
+ .ndo_tx_timeout = qeth_tx_timeout,
};
static const struct net_device_ops qeth_l3_osa_netdev_ops = {
@@ -3238,15 +3249,14 @@ static const struct net_device_ops qeth_l3_osa_netdev_ops = {
.ndo_get_stats = qeth_get_stats,
.ndo_start_xmit = qeth_l3_hard_start_xmit,
.ndo_validate_addr = eth_validate_addr,
- .ndo_set_multicast_list = qeth_l3_set_multicast_list,
- .ndo_do_ioctl = qeth_l3_do_ioctl,
- .ndo_change_mtu = qeth_change_mtu,
- .ndo_fix_features = qeth_l3_fix_features,
- .ndo_set_features = qeth_l3_set_features,
- .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
+ .ndo_set_rx_mode = qeth_l3_set_multicast_list,
+ .ndo_do_ioctl = qeth_l3_do_ioctl,
+ .ndo_change_mtu = qeth_change_mtu,
+ .ndo_fix_features = qeth_l3_fix_features,
+ .ndo_set_features = qeth_l3_set_features,
.ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
- .ndo_tx_timeout = qeth_tx_timeout,
+ .ndo_tx_timeout = qeth_tx_timeout,
.ndo_neigh_setup = qeth_l3_neigh_setup,
};
@@ -3256,12 +3266,8 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
card->info.type == QETH_CARD_TYPE_OSX) {
if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
(card->info.link_type == QETH_LINK_TYPE_HSTR)) {
-#ifdef CONFIG_TR
- card->dev = alloc_trdev(0);
-#endif
- if (!card->dev)
- return -ENODEV;
- card->dev->netdev_ops = &qeth_l3_netdev_ops;
+ pr_info("qeth_l3: ignoring TR device\n");
+ return -ENODEV;
} else {
card->dev = alloc_etherdev(0);
if (!card->dev)
@@ -3287,16 +3293,18 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
card->dev->flags |= IFF_NOARP;
card->dev->netdev_ops = &qeth_l3_netdev_ops;
qeth_l3_iqd_read_initial_mac(card);
+ if (card->options.hsuid[0])
+ memcpy(card->dev->perm_addr, card->options.hsuid, 9);
} else
return -ENODEV;
card->dev->ml_priv = card;
card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
card->dev->mtu = card->info.initial_mtu;
- SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
- card->dev->features |= NETIF_F_HW_VLAN_TX |
- NETIF_F_HW_VLAN_RX |
- NETIF_F_HW_VLAN_FILTER;
+ card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
+ card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_FILTER;
card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
card->dev->gso_max_size = 15 * PAGE_SIZE;
@@ -3312,12 +3320,6 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
qeth_l3_create_device_attributes(&gdev->dev);
card->options.layer2 = 0;
card->info.hwtrap = 0;
- card->discipline.start_poll = qeth_qdio_start_poll;
- card->discipline.input_handler = (qdio_handler_t *)
- qeth_qdio_input_handler;
- card->discipline.output_handler = (qdio_handler_t *)
- qeth_qdio_output_handler;
- card->discipline.recover = qeth_l3_recover;
return 0;
}
@@ -3349,7 +3351,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
int rc = 0;
enum qeth_card_states recover_flag;
- BUG_ON(!card);
mutex_lock(&card->discipline_mutex);
mutex_lock(&card->conf_mutex);
QETH_DBF_TEXT(SETUP, 2, "setonlin");
@@ -3402,8 +3403,10 @@ contin:
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
if (!card->options.sniffer) {
rc = qeth_l3_start_ipassists(card);
- if (rc)
+ if (rc) {
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
+ goto out_remove;
+ }
rc = qeth_l3_setrouting_v4(card);
if (rc)
QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
@@ -3428,15 +3431,15 @@ contin:
else
netif_carrier_off(card->dev);
if (recover_flag == CARD_STATE_RECOVER) {
+ rtnl_lock();
if (recovery_mode)
__qeth_l3_open(card->dev);
- else {
- rtnl_lock();
+ else
dev_open(card->dev);
- rtnl_unlock();
- }
qeth_l3_set_multicast_list(card->dev);
+ rtnl_unlock();
}
+ qeth_trace_features(card);
/* let user_space know that device is online */
kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
mutex_unlock(&card->conf_mutex);
@@ -3447,6 +3450,7 @@ out_remove:
ccw_device_set_offline(CARD_DDEV(card));
ccw_device_set_offline(CARD_WDEV(card));
ccw_device_set_offline(CARD_RDEV(card));
+ qdio_free(CARD_DDEV(card));
if (recover_flag == CARD_STATE_RECOVER)
card->state = CARD_STATE_RECOVER;
else
@@ -3481,6 +3485,11 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
card->info.hwtrap = 1;
}
qeth_l3_stop_card(card, recovery_mode);
+ if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
+ rtnl_lock();
+ call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
+ rtnl_unlock();
+ }
rc = ccw_device_set_offline(CARD_DDEV(card));
rc2 = ccw_device_set_offline(CARD_WDEV(card));
rc3 = ccw_device_set_offline(CARD_RDEV(card));
@@ -3488,6 +3497,7 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
rc = (rc2) ? rc2 : rc3;
if (rc)
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
+ qdio_free(CARD_DDEV(card));
if (recover_flag == CARD_STATE_UP)
card->state = CARD_STATE_RECOVER;
/* let user_space know that device is offline */
@@ -3515,18 +3525,18 @@ static int qeth_l3_recover(void *ptr)
QETH_CARD_TEXT(card, 2, "recover2");
dev_warn(&card->gdev->dev,
"A recovery process has been started for the device\n");
+ qeth_set_recovery_task(card);
__qeth_l3_set_offline(card->gdev, 1);
rc = __qeth_l3_set_online(card->gdev, 1);
if (!rc)
dev_info(&card->gdev->dev,
"Device successfully recovered!\n");
else {
- rtnl_lock();
- dev_close(card->dev);
- rtnl_unlock();
+ qeth_close_dev(card);
dev_warn(&card->gdev->dev, "The qeth device driver "
- "failed to recover an error on the device\n");
+ "failed to recover an error on the device\n");
}
+ qeth_clear_recovery_task(card);
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
return 0;
@@ -3535,10 +3545,12 @@ static int qeth_l3_recover(void *ptr)
static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ qeth_set_allowed_threads(card, 0, 1);
if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
qeth_qdio_clear_card(card, 0);
qeth_clear_qdio_buffers(card);
+ qdio_free(CARD_DDEV(card));
}
static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
@@ -3587,8 +3599,19 @@ out:
return rc;
}
-struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
- .probe = qeth_l3_probe_device,
+/* Returns zero if the command is successfully "consumed" */
+static int qeth_l3_control_event(struct qeth_card *card,
+ struct qeth_ipa_cmd *cmd)
+{
+ return 1;
+}
+
+struct qeth_discipline qeth_l3_discipline = {
+ .start_poll = qeth_qdio_start_poll,
+ .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
+ .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
+ .recover = qeth_l3_recover,
+ .setup = qeth_l3_probe_device,
.remove = qeth_l3_remove_device,
.set_online = qeth_l3_set_online,
.set_offline = qeth_l3_set_offline,
@@ -3596,8 +3619,9 @@ struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
.freeze = qeth_l3_pm_suspend,
.thaw = qeth_l3_pm_resume,
.restore = qeth_l3_pm_resume,
+ .control_event_handler = qeth_l3_control_event,
};
-EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
+EXPORT_SYMBOL_GPL(qeth_l3_discipline);
static int qeth_l3_ip_event(struct notifier_block *this,
unsigned long event, void *ptr)
@@ -3611,9 +3635,9 @@ static int qeth_l3_ip_event(struct notifier_block *this,
return NOTIFY_DONE;
card = qeth_l3_get_card_from_dev(dev);
- QETH_CARD_TEXT(card, 3, "ipevent");
if (!card)
return NOTIFY_DONE;
+ QETH_CARD_TEXT(card, 3, "ipevent");
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
if (addr != NULL) {
@@ -3657,7 +3681,6 @@ static int qeth_l3_ip6_event(struct notifier_block *this,
struct qeth_ipaddr *addr;
struct qeth_card *card;
-
card = qeth_l3_get_card_from_dev(dev);
if (!card)
return NOTIFY_DONE;
@@ -3720,9 +3743,9 @@ static void qeth_l3_unregister_notifiers(void)
{
QETH_DBF_TEXT(SETUP, 5, "unregnot");
- BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
+ WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
#ifdef CONFIG_QETH_IPV6
- BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
+ WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
#endif /* QETH_IPV6 */
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-08 01:50:21 +0000