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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/s390/net/qeth_main.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/s390/net/qeth_main.c')
-rw-r--r--drivers/s390/net/qeth_main.c8236
1 files changed, 8236 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
new file mode 100644
index 00000000000..607b92542df
--- /dev/null
+++ b/drivers/s390/net/qeth_main.c
@@ -0,0 +1,8236 @@
+/*
+ *
+ * linux/drivers/s390/net/qeth_main.c ($Revision: 1.206 $)
+ *
+ * Linux on zSeries OSA Express and HiperSockets support
+ *
+ * Copyright 2000,2003 IBM Corporation
+ *
+ * Author(s): Original Code written by
+ * Utz Bacher (utz.bacher@de.ibm.com)
+ * Rewritten by
+ * Frank Pavlic (pavlic@de.ibm.com) and
+ * Thomas Spatzier <tspat@de.ibm.com>
+ *
+ * $Revision: 1.206 $ $Date: 2005/03/24 09:04:18 $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/***
+ * eye catcher; just for debugging purposes
+ */
+void volatile
+qeth_eyecatcher(void)
+{
+ return;
+}
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/ip.h>
+#include <linux/inetdevice.h>
+#include <linux/netdevice.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/tcp.h>
+#include <linux/icmp.h>
+#include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/igmp.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/mii.h>
+#include <linux/rcupdate.h>
+#include <linux/ethtool.h>
+
+#include <net/arp.h>
+#include <net/ip.h>
+#include <net/route.h>
+
+#include <asm/ebcdic.h>
+#include <asm/io.h>
+#include <asm/qeth.h>
+#include <asm/timex.h>
+#include <asm/semaphore.h>
+#include <asm/uaccess.h>
+
+#include "qeth.h"
+#include "qeth_mpc.h"
+#include "qeth_fs.h"
+#include "qeth_eddp.h"
+#include "qeth_tso.h"
+
+#define VERSION_QETH_C "$Revision: 1.206 $"
+static const char *version = "qeth S/390 OSA-Express driver";
+
+/**
+ * Debug Facility Stuff
+ */
+static debug_info_t *qeth_dbf_setup = NULL;
+static debug_info_t *qeth_dbf_data = NULL;
+static debug_info_t *qeth_dbf_misc = NULL;
+static debug_info_t *qeth_dbf_control = NULL;
+debug_info_t *qeth_dbf_trace = NULL;
+static debug_info_t *qeth_dbf_sense = NULL;
+static debug_info_t *qeth_dbf_qerr = NULL;
+
+DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
+
+/**
+ * some more definitions and declarations
+ */
+static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
+
+/* list of our cards */
+struct qeth_card_list_struct qeth_card_list;
+/*process list want to be notified*/
+spinlock_t qeth_notify_lock;
+struct list_head qeth_notify_list;
+
+static void qeth_send_control_data_cb(struct qeth_channel *,
+ struct qeth_cmd_buffer *);
+
+/**
+ * here we go with function implementation
+ */
+static void
+qeth_init_qdio_info(struct qeth_card *card);
+
+static int
+qeth_init_qdio_queues(struct qeth_card *card);
+
+static int
+qeth_alloc_qdio_buffers(struct qeth_card *card);
+
+static void
+qeth_free_qdio_buffers(struct qeth_card *);
+
+static void
+qeth_clear_qdio_buffers(struct qeth_card *);
+
+static void
+qeth_clear_ip_list(struct qeth_card *, int, int);
+
+static void
+qeth_clear_ipacmd_list(struct qeth_card *);
+
+static int
+qeth_qdio_clear_card(struct qeth_card *, int);
+
+static void
+qeth_clear_working_pool_list(struct qeth_card *);
+
+static void
+qeth_clear_cmd_buffers(struct qeth_channel *);
+
+static int
+qeth_stop(struct net_device *);
+
+static void
+qeth_clear_ipato_list(struct qeth_card *);
+
+static int
+qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
+
+static void
+qeth_irq_tasklet(unsigned long);
+
+static int
+qeth_set_online(struct ccwgroup_device *);
+
+static struct qeth_ipaddr *
+qeth_get_addr_buffer(enum qeth_prot_versions);
+
+static void
+qeth_set_multicast_list(struct net_device *);
+
+static void
+qeth_notify_processes(void)
+{
+ /*notify all registered processes */
+ struct qeth_notify_list_struct *n_entry;
+
+ QETH_DBF_TEXT(trace,3,"procnoti");
+ spin_lock(&qeth_notify_lock);
+ list_for_each_entry(n_entry, &qeth_notify_list, list) {
+ send_sig(n_entry->signum, n_entry->task, 1);
+ }
+ spin_unlock(&qeth_notify_lock);
+
+}
+int
+qeth_notifier_unregister(struct task_struct *p)
+{
+ struct qeth_notify_list_struct *n_entry, *tmp;
+
+ QETH_DBF_TEXT(trace, 2, "notunreg");
+ spin_lock(&qeth_notify_lock);
+ list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
+ if (n_entry->task == p) {
+ list_del(&n_entry->list);
+ kfree(n_entry);
+ goto out;
+ }
+ }
+out:
+ spin_unlock(&qeth_notify_lock);
+ return 0;
+}
+int
+qeth_notifier_register(struct task_struct *p, int signum)
+{
+ struct qeth_notify_list_struct *n_entry;
+
+
+ /*check first if entry already exists*/
+ spin_lock(&qeth_notify_lock);
+ list_for_each_entry(n_entry, &qeth_notify_list, list) {
+ if (n_entry->task == p) {
+ n_entry->signum = signum;
+ spin_unlock(&qeth_notify_lock);
+ return 0;
+ }
+ }
+ spin_unlock(&qeth_notify_lock);
+
+ n_entry = (struct qeth_notify_list_struct *)
+ kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
+ if (!n_entry)
+ return -ENOMEM;
+ n_entry->task = p;
+ n_entry->signum = signum;
+ spin_lock(&qeth_notify_lock);
+ list_add(&n_entry->list,&qeth_notify_list);
+ spin_unlock(&qeth_notify_lock);
+ return 0;
+}
+
+
+/**
+ * free channel command buffers
+ */
+static void
+qeth_clean_channel(struct qeth_channel *channel)
+{
+ int cnt;
+
+ QETH_DBF_TEXT(setup, 2, "freech");
+ for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
+ kfree(channel->iob[cnt].data);
+}
+
+/**
+ * free card
+ */
+static void
+qeth_free_card(struct qeth_card *card)
+{
+
+ QETH_DBF_TEXT(setup, 2, "freecrd");
+ QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
+ qeth_clean_channel(&card->read);
+ qeth_clean_channel(&card->write);
+ if (card->dev)
+ free_netdev(card->dev);
+ qeth_clear_ip_list(card, 0, 0);
+ qeth_clear_ipato_list(card);
+ kfree(card->ip_tbd_list);
+ qeth_free_qdio_buffers(card);
+ kfree(card);
+}
+
+/**
+ * alloc memory for command buffer per channel
+ */
+static int
+qeth_setup_channel(struct qeth_channel *channel)
+{
+ int cnt;
+
+ QETH_DBF_TEXT(setup, 2, "setupch");
+ for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
+ channel->iob[cnt].data = (char *)
+ kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
+ if (channel->iob[cnt].data == NULL)
+ break;
+ channel->iob[cnt].state = BUF_STATE_FREE;
+ channel->iob[cnt].channel = channel;
+ channel->iob[cnt].callback = qeth_send_control_data_cb;
+ channel->iob[cnt].rc = 0;
+ }
+ if (cnt < QETH_CMD_BUFFER_NO) {
+ while (cnt-- > 0)
+ kfree(channel->iob[cnt].data);
+ return -ENOMEM;
+ }
+ channel->buf_no = 0;
+ channel->io_buf_no = 0;
+ atomic_set(&channel->irq_pending, 0);
+ spin_lock_init(&channel->iob_lock);
+
+ init_waitqueue_head(&channel->wait_q);
+ channel->irq_tasklet.data = (unsigned long) channel;
+ channel->irq_tasklet.func = qeth_irq_tasklet;
+ return 0;
+}
+
+/**
+ * alloc memory for card structure
+ */
+static struct qeth_card *
+qeth_alloc_card(void)
+{
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(setup, 2, "alloccrd");
+ card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
+ GFP_DMA|GFP_KERNEL);
+ if (!card)
+ return NULL;
+ QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
+ memset(card, 0, sizeof(struct qeth_card));
+ if (qeth_setup_channel(&card->read)) {
+ kfree(card);
+ return NULL;
+ }
+ if (qeth_setup_channel(&card->write)) {
+ qeth_clean_channel(&card->read);
+ kfree(card);
+ return NULL;
+ }
+ return card;
+}
+
+static long
+__qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
+{
+ if (!IS_ERR(irb))
+ return 0;
+
+ switch (PTR_ERR(irb)) {
+ case -EIO:
+ PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
+ QETH_DBF_TEXT(trace, 2, "ckirberr");
+ QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
+ break;
+ case -ETIMEDOUT:
+ PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
+ QETH_DBF_TEXT(trace, 2, "ckirberr");
+ QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
+ break;
+ default:
+ PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
+ cdev->dev.bus_id);
+ QETH_DBF_TEXT(trace, 2, "ckirberr");
+ QETH_DBF_TEXT(trace, 2, " rc???");
+ }
+ return PTR_ERR(irb);
+}
+
+static int
+qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
+{
+ int dstat,cstat;
+ char *sense;
+
+ sense = (char *) irb->ecw;
+ cstat = irb->scsw.cstat;
+ dstat = irb->scsw.dstat;
+
+ if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
+ SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
+ SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
+ QETH_DBF_TEXT(trace,2, "CGENCHK");
+ PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
+ cdev->dev.bus_id, dstat, cstat);
+ HEXDUMP16(WARN, "irb: ", irb);
+ HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
+ return 1;
+ }
+
+ if (dstat & DEV_STAT_UNIT_CHECK) {
+ if (sense[SENSE_RESETTING_EVENT_BYTE] &
+ SENSE_RESETTING_EVENT_FLAG) {
+ QETH_DBF_TEXT(trace,2,"REVIND");
+ return 1;
+ }
+ if (sense[SENSE_COMMAND_REJECT_BYTE] &
+ SENSE_COMMAND_REJECT_FLAG) {
+ QETH_DBF_TEXT(trace,2,"CMDREJi");
+ return 0;
+ }
+ if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
+ QETH_DBF_TEXT(trace,2,"AFFE");
+ return 1;
+ }
+ if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
+ QETH_DBF_TEXT(trace,2,"ZEROSEN");
+ return 0;
+ }
+ QETH_DBF_TEXT(trace,2,"DGENCHK");
+ return 1;
+ }
+ return 0;
+}
+static int qeth_issue_next_read(struct qeth_card *);
+
+/**
+ * interrupt handler
+ */
+static void
+qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
+{
+ int rc;
+ int cstat,dstat;
+ struct qeth_cmd_buffer *buffer;
+ struct qeth_channel *channel;
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace,5,"irq");
+
+ if (__qeth_check_irb_error(cdev, irb))
+ return;
+ cstat = irb->scsw.cstat;
+ dstat = irb->scsw.dstat;
+
+ card = CARD_FROM_CDEV(cdev);
+ if (!card)
+ return;
+
+ if (card->read.ccwdev == cdev){
+ channel = &card->read;
+ QETH_DBF_TEXT(trace,5,"read");
+ } else if (card->write.ccwdev == cdev) {
+ channel = &card->write;
+ QETH_DBF_TEXT(trace,5,"write");
+ } else {
+ channel = &card->data;
+ QETH_DBF_TEXT(trace,5,"data");
+ }
+ atomic_set(&channel->irq_pending, 0);
+
+ if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
+ channel->state = CH_STATE_STOPPED;
+
+ if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
+ channel->state = CH_STATE_HALTED;
+
+ /*let's wake up immediately on data channel*/
+ if ((channel == &card->data) && (intparm != 0))
+ goto out;
+
+ if (intparm == QETH_CLEAR_CHANNEL_PARM) {
+ QETH_DBF_TEXT(trace, 6, "clrchpar");
+ /* we don't have to handle this further */
+ intparm = 0;
+ }
+ if (intparm == QETH_HALT_CHANNEL_PARM) {
+ QETH_DBF_TEXT(trace, 6, "hltchpar");
+ /* we don't have to handle this further */
+ intparm = 0;
+ }
+ if ((dstat & DEV_STAT_UNIT_EXCEP) ||
+ (dstat & DEV_STAT_UNIT_CHECK) ||
+ (cstat)) {
+ if (irb->esw.esw0.erw.cons) {
+ /* TODO: we should make this s390dbf */
+ PRINT_WARN("sense data available on channel %s.\n",
+ CHANNEL_ID(channel));
+ PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
+ HEXDUMP16(WARN,"irb: ",irb);
+ HEXDUMP16(WARN,"sense data: ",irb->ecw);
+ }
+ rc = qeth_get_problem(cdev,irb);
+ if (rc) {
+ qeth_schedule_recovery(card);
+ goto out;
+ }
+ }
+
+ if (intparm) {
+ buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
+ buffer->state = BUF_STATE_PROCESSED;
+ }
+ if (channel == &card->data)
+ return;
+
+ if (channel == &card->read &&
+ channel->state == CH_STATE_UP)
+ qeth_issue_next_read(card);
+
+ tasklet_schedule(&channel->irq_tasklet);
+ return;
+out:
+ wake_up(&card->wait_q);
+}
+
+/**
+ * tasklet function scheduled from irq handler
+ */
+static void
+qeth_irq_tasklet(unsigned long data)
+{
+ struct qeth_card *card;
+ struct qeth_channel *channel;
+ struct qeth_cmd_buffer *iob;
+ __u8 index;
+
+ QETH_DBF_TEXT(trace,5,"irqtlet");
+ channel = (struct qeth_channel *) data;
+ iob = channel->iob;
+ index = channel->buf_no;
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ while (iob[index].state == BUF_STATE_PROCESSED) {
+ if (iob[index].callback !=NULL) {
+ iob[index].callback(channel,iob + index);
+ }
+ index = (index + 1) % QETH_CMD_BUFFER_NO;
+ }
+ channel->buf_no = index;
+ wake_up(&card->wait_q);
+}
+
+static int qeth_stop_card(struct qeth_card *);
+
+static int
+qeth_set_offline(struct ccwgroup_device *cgdev)
+{
+ struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
+ int rc = 0;
+ enum qeth_card_states recover_flag;
+
+ QETH_DBF_TEXT(setup, 3, "setoffl");
+ QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
+
+ recover_flag = card->state;
+ if (qeth_stop_card(card) == -ERESTARTSYS){
+ PRINT_WARN("Stopping card %s interrupted by user!\n",
+ CARD_BUS_ID(card));
+ return -ERESTARTSYS;
+ }
+ if ((rc = ccw_device_set_offline(CARD_DDEV(card))) ||
+ (rc = ccw_device_set_offline(CARD_WDEV(card))) ||
+ (rc = ccw_device_set_offline(CARD_RDEV(card)))) {
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ }
+ if (recover_flag == CARD_STATE_UP)
+ card->state = CARD_STATE_RECOVER;
+ qeth_notify_processes();
+ return 0;
+}
+
+static int
+qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
+
+
+static void
+qeth_remove_device(struct ccwgroup_device *cgdev)
+{
+ struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(setup, 3, "rmdev");
+ QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
+
+ if (!card)
+ return;
+
+ if (qeth_wait_for_threads(card, 0xffffffff))
+ return;
+
+ if (cgdev->state == CCWGROUP_ONLINE){
+ card->use_hard_stop = 1;
+ qeth_set_offline(cgdev);
+ }
+ /* remove form our internal list */
+ write_lock_irqsave(&qeth_card_list.rwlock, flags);
+ list_del(&card->list);
+ write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
+ if (card->dev)
+ unregister_netdev(card->dev);
+ qeth_remove_device_attributes(&cgdev->dev);
+ qeth_free_card(card);
+ cgdev->dev.driver_data = NULL;
+ put_device(&cgdev->dev);
+}
+
+static int
+qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
+static int
+qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
+
+/**
+ * Add/remove address to/from card's ip list, i.e. try to add or remove
+ * reference to/from an IP address that is already registered on the card.
+ * Returns:
+ * 0 address was on card and its reference count has been adjusted,
+ * but is still > 0, so nothing has to be done
+ * also returns 0 if card was not on card and the todo was to delete
+ * the address -> there is also nothing to be done
+ * 1 address was not on card and the todo is to add it to the card's ip
+ * list
+ * -1 address was on card and its reference count has been decremented
+ * to <= 0 by the todo -> address must be removed from card
+ */
+static int
+__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
+ struct qeth_ipaddr **__addr)
+{
+ struct qeth_ipaddr *addr;
+ int found = 0;
+
+ list_for_each_entry(addr, &card->ip_list, entry) {
+ if ((addr->proto == QETH_PROT_IPV4) &&
+ (todo->proto == QETH_PROT_IPV4) &&
+ (addr->type == todo->type) &&
+ (addr->u.a4.addr == todo->u.a4.addr) &&
+ (addr->u.a4.mask == todo->u.a4.mask) ){
+ found = 1;
+ break;
+ }
+ if ((addr->proto == QETH_PROT_IPV6) &&
+ (todo->proto == QETH_PROT_IPV6) &&
+ (addr->type == todo->type) &&
+ (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
+ (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
+ sizeof(struct in6_addr)) == 0)) {
+ found = 1;
+ break;
+ }
+ }
+ if (found){
+ addr->users += todo->users;
+ if (addr->users <= 0){
+ *__addr = addr;
+ return -1;
+ } else {
+ /* for VIPA and RXIP limit refcount to 1 */
+ if (addr->type != QETH_IP_TYPE_NORMAL)
+ addr->users = 1;
+ return 0;
+ }
+ }
+ if (todo->users > 0){
+ /* for VIPA and RXIP limit refcount to 1 */
+ if (todo->type != QETH_IP_TYPE_NORMAL)
+ todo->users = 1;
+ return 1;
+ } else
+ return 0;
+}
+
+static inline int
+__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
+ int same_type)
+{
+ struct qeth_ipaddr *tmp;
+
+ list_for_each_entry(tmp, list, entry) {
+ if ((tmp->proto == QETH_PROT_IPV4) &&
+ (addr->proto == QETH_PROT_IPV4) &&
+ ((same_type && (tmp->type == addr->type)) ||
+ (!same_type && (tmp->type != addr->type)) ) &&
+ (tmp->u.a4.addr == addr->u.a4.addr) ){
+ return 1;
+ }
+ if ((tmp->proto == QETH_PROT_IPV6) &&
+ (addr->proto == QETH_PROT_IPV6) &&
+ ((same_type && (tmp->type == addr->type)) ||
+ (!same_type && (tmp->type != addr->type)) ) &&
+ (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
+ sizeof(struct in6_addr)) == 0) ) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Add IP to be added to todo list. If there is already an "add todo"
+ * in this list we just incremenent the reference count.
+ * Returns 0 if we just incremented reference count.
+ */
+static int
+__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
+{
+ struct qeth_ipaddr *tmp, *t;
+ int found = 0;
+
+ list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
+ if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
+ (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
+ return 0;
+ if ((tmp->proto == QETH_PROT_IPV4) &&
+ (addr->proto == QETH_PROT_IPV4) &&
+ (tmp->type == addr->type) &&
+ (tmp->is_multicast == addr->is_multicast) &&
+ (tmp->u.a4.addr == addr->u.a4.addr) &&
+ (tmp->u.a4.mask == addr->u.a4.mask) ){
+ found = 1;
+ break;
+ }
+ if ((tmp->proto == QETH_PROT_IPV6) &&
+ (addr->proto == QETH_PROT_IPV6) &&
+ (tmp->type == addr->type) &&
+ (tmp->is_multicast == addr->is_multicast) &&
+ (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
+ (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
+ sizeof(struct in6_addr)) == 0) ){
+ found = 1;
+ break;
+ }
+ }
+ if (found){
+ if (addr->users != 0)
+ tmp->users += addr->users;
+ else
+ tmp->users += add? 1:-1;
+ if (tmp->users == 0){
+ list_del(&tmp->entry);
+ kfree(tmp);
+ }
+ return 0;
+ } else {
+ if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
+ list_add(&addr->entry, card->ip_tbd_list);
+ else {
+ if (addr->users == 0)
+ addr->users += add? 1:-1;
+ if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
+ qeth_is_addr_covered_by_ipato(card, addr)){
+ QETH_DBF_TEXT(trace, 2, "tkovaddr");
+ addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
+ }
+ list_add_tail(&addr->entry, card->ip_tbd_list);
+ }
+ return 1;
+ }
+}
+
+/**
+ * Remove IP address from list
+ */
+static int
+qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+ unsigned long flags;
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,4,"delip");
+ if (addr->proto == QETH_PROT_IPV4)
+ QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
+ else {
+ QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
+ QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
+ }
+ spin_lock_irqsave(&card->ip_lock, flags);
+ rc = __qeth_insert_ip_todo(card, addr, 0);
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ return rc;
+}
+
+static int
+qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+ unsigned long flags;
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,4,"addip");
+ if (addr->proto == QETH_PROT_IPV4)
+ QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
+ else {
+ QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
+ QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
+ }
+ spin_lock_irqsave(&card->ip_lock, flags);
+ rc = __qeth_insert_ip_todo(card, addr, 1);
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ return rc;
+}
+
+static inline void
+__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
+{
+ struct qeth_ipaddr *addr, *tmp;
+ int rc;
+
+ list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
+ if (addr->is_multicast) {
+ spin_unlock_irqrestore(&card->ip_lock, *flags);
+ rc = qeth_deregister_addr_entry(card, addr);
+ spin_lock_irqsave(&card->ip_lock, *flags);
+ if (!rc) {
+ list_del(&addr->entry);
+ kfree(addr);
+ }
+ }
+ }
+}
+
+static void
+qeth_set_ip_addr_list(struct qeth_card *card)
+{
+ struct list_head *tbd_list;
+ struct qeth_ipaddr *todo, *addr;
+ unsigned long flags;
+ int rc;
+
+ QETH_DBF_TEXT(trace, 2, "sdiplist");
+ QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
+
+ spin_lock_irqsave(&card->ip_lock, flags);
+ tbd_list = card->ip_tbd_list;
+ card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
+ if (!card->ip_tbd_list) {
+ QETH_DBF_TEXT(trace, 0, "silnomem");
+ card->ip_tbd_list = tbd_list;
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ return;
+ } else
+ INIT_LIST_HEAD(card->ip_tbd_list);
+
+ while (!list_empty(tbd_list)){
+ todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
+ list_del(&todo->entry);
+ if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
+ __qeth_delete_all_mc(card, &flags);
+ kfree(todo);
+ continue;
+ }
+ rc = __qeth_ref_ip_on_card(card, todo, &addr);
+ if (rc == 0) {
+ /* nothing to be done; only adjusted refcount */
+ kfree(todo);
+ } else if (rc == 1) {
+ /* new entry to be added to on-card list */
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ rc = qeth_register_addr_entry(card, todo);
+ spin_lock_irqsave(&card->ip_lock, flags);
+ if (!rc)
+ list_add_tail(&todo->entry, &card->ip_list);
+ else
+ kfree(todo);
+ } else if (rc == -1) {
+ /* on-card entry to be removed */
+ list_del_init(&addr->entry);
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ rc = qeth_deregister_addr_entry(card, addr);
+ spin_lock_irqsave(&card->ip_lock, flags);
+ if (!rc)
+ kfree(addr);
+ else
+ list_add_tail(&addr->entry, &card->ip_list);
+ kfree(todo);
+ }
+ }
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ kfree(tbd_list);
+}
+
+static void qeth_delete_mc_addresses(struct qeth_card *);
+static void qeth_add_multicast_ipv4(struct qeth_card *);
+#ifdef CONFIG_QETH_IPV6
+static void qeth_add_multicast_ipv6(struct qeth_card *);
+#endif
+
+static inline int
+qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ if ( !(card->thread_allowed_mask & thread) ||
+ (card->thread_start_mask & thread) ) {
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ return -EPERM;
+ }
+ card->thread_start_mask |= thread;
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ return 0;
+}
+
+static void
+qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ card->thread_start_mask &= ~thread;
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ wake_up(&card->wait_q);
+}
+
+static void
+qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ card->thread_running_mask &= ~thread;
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ wake_up(&card->wait_q);
+}
+
+static inline int
+__qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
+{
+ unsigned long flags;
+ int rc = 0;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ if (card->thread_start_mask & thread){
+ if ((card->thread_allowed_mask & thread) &&
+ !(card->thread_running_mask & thread)){
+ rc = 1;
+ card->thread_start_mask &= ~thread;
+ card->thread_running_mask |= thread;
+ } else
+ rc = -EPERM;
+ }
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ return rc;
+}
+
+static int
+qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
+{
+ int rc = 0;
+
+ wait_event(card->wait_q,
+ (rc = __qeth_do_run_thread(card, thread)) >= 0);
+ return rc;
+}
+
+static int
+qeth_register_ip_addresses(void *ptr)
+{
+ struct qeth_card *card;
+
+ card = (struct qeth_card *) ptr;
+ daemonize("qeth_reg_ip");
+ QETH_DBF_TEXT(trace,4,"regipth1");
+ if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
+ return 0;
+ QETH_DBF_TEXT(trace,4,"regipth2");
+ qeth_set_ip_addr_list(card);
+ qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
+ return 0;
+}
+
+static int
+qeth_recover(void *ptr)
+{
+ struct qeth_card *card;
+ int rc = 0;
+
+ card = (struct qeth_card *) ptr;
+ daemonize("qeth_recover");
+ QETH_DBF_TEXT(trace,2,"recover1");
+ QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
+ if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
+ return 0;
+ QETH_DBF_TEXT(trace,2,"recover2");
+ PRINT_WARN("Recovery of device %s started ...\n",
+ CARD_BUS_ID(card));
+ card->use_hard_stop = 1;
+ qeth_set_offline(card->gdev);
+ rc = qeth_set_online(card->gdev);
+ if (!rc)
+ PRINT_INFO("Device %s successfully recovered!\n",
+ CARD_BUS_ID(card));
+ else
+ PRINT_INFO("Device %s could not be recovered!\n",
+ CARD_BUS_ID(card));
+ /* don't run another scheduled recovery */
+ qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
+ qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
+ return 0;
+}
+
+void
+qeth_schedule_recovery(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(trace,2,"startrec");
+
+ if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+}
+
+static int
+qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
+{
+ unsigned long flags;
+ int rc = 0;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
+ (u8) card->thread_start_mask,
+ (u8) card->thread_allowed_mask,
+ (u8) card->thread_running_mask);
+ rc = (card->thread_start_mask & thread);
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ return rc;
+}
+
+static void
+qeth_start_kernel_thread(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(trace , 2, "strthrd");
+
+ if (card->read.state != CH_STATE_UP &&
+ card->write.state != CH_STATE_UP)
+ return;
+
+ if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
+ kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
+ if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
+ kernel_thread(qeth_recover, (void *) card, SIGCHLD);
+}
+
+
+static void
+qeth_set_intial_options(struct qeth_card *card)
+{
+ card->options.route4.type = NO_ROUTER;
+#ifdef CONFIG_QETH_IPV6
+ card->options.route6.type = NO_ROUTER;
+#endif /* QETH_IPV6 */
+ card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
+ card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
+ card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
+ card->options.fake_broadcast = 0;
+ card->options.add_hhlen = DEFAULT_ADD_HHLEN;
+ card->options.fake_ll = 0;
+ card->options.layer2 = 0;
+}
+
+/**
+ * initialize channels ,card and all state machines
+ */
+static int
+qeth_setup_card(struct qeth_card *card)
+{
+
+ QETH_DBF_TEXT(setup, 2, "setupcrd");
+ QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
+
+ card->read.state = CH_STATE_DOWN;
+ card->write.state = CH_STATE_DOWN;
+ card->data.state = CH_STATE_DOWN;
+ card->state = CARD_STATE_DOWN;
+ card->lan_online = 0;
+ card->use_hard_stop = 0;
+ card->dev = NULL;
+#ifdef CONFIG_QETH_VLAN
+ spin_lock_init(&card->vlanlock);
+ card->vlangrp = NULL;
+#endif
+ spin_lock_init(&card->ip_lock);
+ spin_lock_init(&card->thread_mask_lock);
+ card->thread_start_mask = 0;
+ card->thread_allowed_mask = 0;
+ card->thread_running_mask = 0;
+ INIT_WORK(&card->kernel_thread_starter,
+ (void *)qeth_start_kernel_thread,card);
+ INIT_LIST_HEAD(&card->ip_list);
+ card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
+ if (!card->ip_tbd_list) {
+ QETH_DBF_TEXT(setup, 0, "iptbdnom");
+ return -ENOMEM;
+ }
+ INIT_LIST_HEAD(card->ip_tbd_list);
+ INIT_LIST_HEAD(&card->cmd_waiter_list);
+ init_waitqueue_head(&card->wait_q);
+ /* intial options */
+ qeth_set_intial_options(card);
+ /* IP address takeover */
+ INIT_LIST_HEAD(&card->ipato.entries);
+ card->ipato.enabled = 0;
+ card->ipato.invert4 = 0;
+ card->ipato.invert6 = 0;
+ /* init QDIO stuff */
+ qeth_init_qdio_info(card);
+ return 0;
+}
+
+static int
+is_1920_device (struct qeth_card *card)
+{
+ int single_queue = 0;
+ struct ccw_device *ccwdev;
+ struct channelPath_dsc {
+ u8 flags;
+ u8 lsn;
+ u8 desc;
+ u8 chpid;
+ u8 swla;
+ u8 zeroes;
+ u8 chla;
+ u8 chpp;
+ } *chp_dsc;
+
+ QETH_DBF_TEXT(setup, 2, "chk_1920");
+
+ ccwdev = card->data.ccwdev;
+ chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
+ if (chp_dsc != NULL) {
+ /* CHPP field bit 6 == 1 -> single queue */
+ single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
+ kfree(chp_dsc);
+ }
+ QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
+ return single_queue;
+}
+
+static int
+qeth_determine_card_type(struct qeth_card *card)
+{
+ int i = 0;
+
+ QETH_DBF_TEXT(setup, 2, "detcdtyp");
+
+ while (known_devices[i][4]) {
+ if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
+ (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
+ card->info.type = known_devices[i][4];
+ if (is_1920_device(card)) {
+ PRINT_INFO("Priority Queueing not able "
+ "due to hardware limitations!\n");
+ card->qdio.no_out_queues = 1;
+ card->qdio.default_out_queue = 0;
+ } else {
+ card->qdio.no_out_queues = known_devices[i][8];
+ }
+ card->info.is_multicast_different = known_devices[i][9];
+ return 0;
+ }
+ i++;
+ }
+ card->info.type = QETH_CARD_TYPE_UNKNOWN;
+ PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
+ return -ENOENT;
+}
+
+static int
+qeth_probe_device(struct ccwgroup_device *gdev)
+{
+ struct qeth_card *card;
+ struct device *dev;
+ unsigned long flags;
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "probedev");
+
+ dev = &gdev->dev;
+ if (!get_device(dev))
+ return -ENODEV;
+
+ card = qeth_alloc_card();
+ if (!card) {
+ put_device(dev);
+ QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
+ return -ENOMEM;
+ }
+ card->read.ccwdev = gdev->cdev[0];
+ card->write.ccwdev = gdev->cdev[1];
+ card->data.ccwdev = gdev->cdev[2];
+
+ if ((rc = qeth_setup_card(card))){
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ put_device(dev);
+ qeth_free_card(card);
+ return rc;
+ }
+ gdev->dev.driver_data = card;
+ card->gdev = gdev;
+ gdev->cdev[0]->handler = qeth_irq;
+ gdev->cdev[1]->handler = qeth_irq;
+ gdev->cdev[2]->handler = qeth_irq;
+
+ rc = qeth_create_device_attributes(dev);
+ if (rc) {
+ put_device(dev);
+ qeth_free_card(card);
+ return rc;
+ }
+ if ((rc = qeth_determine_card_type(card))){
+ PRINT_WARN("%s: not a valid card type\n", __func__);
+ QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
+ put_device(dev);
+ qeth_free_card(card);
+ return rc;
+ }
+ /* insert into our internal list */
+ write_lock_irqsave(&qeth_card_list.rwlock, flags);
+ list_add_tail(&card->list, &qeth_card_list.list);
+ write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
+ return rc;
+}
+
+
+static int
+qeth_get_unitaddr(struct qeth_card *card)
+{
+ int length;
+ char *prcd;
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "getunit");
+ rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
+ if (rc) {
+ PRINT_ERR("read_conf_data for device %s returned %i\n",
+ CARD_DDEV_ID(card), rc);
+ return rc;
+ }
+ card->info.chpid = prcd[30];
+ card->info.unit_addr2 = prcd[31];
+ card->info.cula = prcd[63];
+ card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
+ (prcd[0x11] == _ascebc['M']));
+ return 0;
+}
+
+static void
+qeth_init_tokens(struct qeth_card *card)
+{
+ card->token.issuer_rm_w = 0x00010103UL;
+ card->token.cm_filter_w = 0x00010108UL;
+ card->token.cm_connection_w = 0x0001010aUL;
+ card->token.ulp_filter_w = 0x0001010bUL;
+ card->token.ulp_connection_w = 0x0001010dUL;
+}
+
+static inline __u16
+raw_devno_from_bus_id(char *id)
+{
+ id += (strlen(id) - 4);
+ return (__u16) simple_strtoul(id, &id, 16);
+}
+/**
+ * setup channel
+ */
+static void
+qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
+{
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace, 4, "setupccw");
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ if (channel == &card->read)
+ memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
+ else
+ memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
+ channel->ccw.count = len;
+ channel->ccw.cda = (__u32) __pa(iob);
+}
+
+/**
+ * get free buffer for ccws (IDX activation, lancmds,ipassists...)
+ */
+static struct qeth_cmd_buffer *
+__qeth_get_buffer(struct qeth_channel *channel)
+{
+ __u8 index;
+
+ QETH_DBF_TEXT(trace, 6, "getbuff");
+ index = channel->io_buf_no;
+ do {
+ if (channel->iob[index].state == BUF_STATE_FREE) {
+ channel->iob[index].state = BUF_STATE_LOCKED;
+ channel->io_buf_no = (channel->io_buf_no + 1) %
+ QETH_CMD_BUFFER_NO;
+ memset(channel->iob[index].data, 0, QETH_BUFSIZE);
+ return channel->iob + index;
+ }
+ index = (index + 1) % QETH_CMD_BUFFER_NO;
+ } while(index != channel->io_buf_no);
+
+ return NULL;
+}
+
+/**
+ * release command buffer
+ */
+static void
+qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
+{
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace, 6, "relbuff");
+ spin_lock_irqsave(&channel->iob_lock, flags);
+ memset(iob->data, 0, QETH_BUFSIZE);
+ iob->state = BUF_STATE_FREE;
+ iob->callback = qeth_send_control_data_cb;
+ iob->rc = 0;
+ spin_unlock_irqrestore(&channel->iob_lock, flags);
+}
+
+static struct qeth_cmd_buffer *
+qeth_get_buffer(struct qeth_channel *channel)
+{
+ struct qeth_cmd_buffer *buffer = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&channel->iob_lock, flags);
+ buffer = __qeth_get_buffer(channel);
+ spin_unlock_irqrestore(&channel->iob_lock, flags);
+ return buffer;
+}
+
+static struct qeth_cmd_buffer *
+qeth_wait_for_buffer(struct qeth_channel *channel)
+{
+ struct qeth_cmd_buffer *buffer;
+ wait_event(channel->wait_q,
+ ((buffer = qeth_get_buffer(channel)) != NULL));
+ return buffer;
+}
+
+static void
+qeth_clear_cmd_buffers(struct qeth_channel *channel)
+{
+ int cnt = 0;
+
+ for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
+ qeth_release_buffer(channel,&channel->iob[cnt]);
+ channel->buf_no = 0;
+ channel->io_buf_no = 0;
+}
+
+/**
+ * start IDX for read and write channel
+ */
+static int
+qeth_idx_activate_get_answer(struct qeth_channel *channel,
+ void (*idx_reply_cb)(struct qeth_channel *,
+ struct qeth_cmd_buffer *))
+{
+ struct qeth_cmd_buffer *iob;
+ unsigned long flags;
+ int rc;
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(setup, 2, "idxanswr");
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ iob = qeth_get_buffer(channel);
+ iob->callback = idx_reply_cb;
+ memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
+ channel->ccw.count = QETH_BUFSIZE;
+ channel->ccw.cda = (__u32) __pa(iob->data);
+
+ wait_event(card->wait_q,
+ atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
+ QETH_DBF_TEXT(setup, 6, "noirqpnd");
+ spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
+ rc = ccw_device_start(channel->ccwdev,
+ &channel->ccw,(addr_t) iob, 0, 0);
+ spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
+
+ if (rc) {
+ PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ atomic_set(&channel->irq_pending, 0);
+ wake_up(&card->wait_q);
+ return rc;
+ }
+ rc = wait_event_interruptible_timeout(card->wait_q,
+ channel->state == CH_STATE_UP, QETH_TIMEOUT);
+ if (rc == -ERESTARTSYS)
+ return rc;
+ if (channel->state != CH_STATE_UP){
+ rc = -ETIME;
+ QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
+ qeth_clear_cmd_buffers(channel);
+ } else
+ rc = 0;
+ return rc;
+}
+
+static int
+qeth_idx_activate_channel(struct qeth_channel *channel,
+ void (*idx_reply_cb)(struct qeth_channel *,
+ struct qeth_cmd_buffer *))
+{
+ struct qeth_card *card;
+ struct qeth_cmd_buffer *iob;
+ unsigned long flags;
+ __u16 temp;
+ int rc;
+
+ card = CARD_FROM_CDEV(channel->ccwdev);
+
+ QETH_DBF_TEXT(setup, 2, "idxactch");
+
+ iob = qeth_get_buffer(channel);
+ iob->callback = idx_reply_cb;
+ memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
+ channel->ccw.count = IDX_ACTIVATE_SIZE;
+ channel->ccw.cda = (__u32) __pa(iob->data);
+ if (channel == &card->write) {
+ memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
+ memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
+ &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
+ card->seqno.trans_hdr++;
+ } else {
+ memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
+ memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
+ &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
+ }
+ memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
+ &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
+ &card->info.func_level,sizeof(__u16));
+ temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
+ memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
+ temp = (card->info.cula << 8) + card->info.unit_addr2;
+ memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
+
+ wait_event(card->wait_q,
+ atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
+ QETH_DBF_TEXT(setup, 6, "noirqpnd");
+ spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
+ rc = ccw_device_start(channel->ccwdev,
+ &channel->ccw,(addr_t) iob, 0, 0);
+ spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
+
+ if (rc) {
+ PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ atomic_set(&channel->irq_pending, 0);
+ wake_up(&card->wait_q);
+ return rc;
+ }
+ rc = wait_event_interruptible_timeout(card->wait_q,
+ channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
+ if (rc == -ERESTARTSYS)
+ return rc;
+ if (channel->state != CH_STATE_ACTIVATING) {
+ PRINT_WARN("qeth: IDX activate timed out!\n");
+ QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
+ qeth_clear_cmd_buffers(channel);
+ return -ETIME;
+ }
+ return qeth_idx_activate_get_answer(channel,idx_reply_cb);
+}
+
+static int
+qeth_peer_func_level(int level)
+{
+ if ((level & 0xff) == 8)
+ return (level & 0xff) + 0x400;
+ if (((level >> 8) & 3) == 1)
+ return (level & 0xff) + 0x200;
+ return level;
+}
+
+static void
+qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
+{
+ struct qeth_card *card;
+ __u16 temp;
+
+ QETH_DBF_TEXT(setup ,2, "idxwrcb");
+
+ if (channel->state == CH_STATE_DOWN) {
+ channel->state = CH_STATE_ACTIVATING;
+ goto out;
+ }
+ card = CARD_FROM_CDEV(channel->ccwdev);
+
+ if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
+ PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
+ "reply\n", CARD_WDEV_ID(card));
+ goto out;
+ }
+ memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
+ if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
+ PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
+ "function level mismatch "
+ "(sent: 0x%x, received: 0x%x)\n",
+ CARD_WDEV_ID(card), card->info.func_level, temp);
+ goto out;
+ }
+ channel->state = CH_STATE_UP;
+out:
+ qeth_release_buffer(channel, iob);
+}
+
+static int
+qeth_check_idx_response(unsigned char *buffer)
+{
+ if (!buffer)
+ return 0;
+
+ QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
+ if ((buffer[2] & 0xc0) == 0xc0) {
+ PRINT_WARN("received an IDX TERMINATE "
+ "with cause code 0x%02x%s\n",
+ buffer[4],
+ ((buffer[4] == 0x22) ?
+ " -- try another portname" : ""));
+ QETH_DBF_TEXT(trace, 2, "ckidxres");
+ QETH_DBF_TEXT(trace, 2, " idxterm");
+ QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
+ return -EIO;
+ }
+ return 0;
+}
+
+static void
+qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
+{
+ struct qeth_card *card;
+ __u16 temp;
+
+ QETH_DBF_TEXT(setup , 2, "idxrdcb");
+ if (channel->state == CH_STATE_DOWN) {
+ channel->state = CH_STATE_ACTIVATING;
+ goto out;
+ }
+
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ if (qeth_check_idx_response(iob->data)) {
+ goto out;
+ }
+ if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
+ PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
+ "reply\n", CARD_RDEV_ID(card));
+ goto out;
+ }
+
+/**
+ * temporary fix for microcode bug
+ * to revert it,replace OR by AND
+ */
+ if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
+ (card->info.type == QETH_CARD_TYPE_OSAE) )
+ card->info.portname_required = 1;
+
+ memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
+ if (temp != qeth_peer_func_level(card->info.func_level)) {
+ PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
+ "level mismatch (sent: 0x%x, received: 0x%x)\n",
+ CARD_RDEV_ID(card), card->info.func_level, temp);
+ goto out;
+ }
+ memcpy(&card->token.issuer_rm_r,
+ QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
+ QETH_MPC_TOKEN_LENGTH);
+ memcpy(&card->info.mcl_level[0],
+ QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
+ channel->state = CH_STATE_UP;
+out:
+ qeth_release_buffer(channel,iob);
+}
+
+static int
+qeth_issue_next_read(struct qeth_card *card)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(trace,5,"issnxrd");
+ if (card->read.state != CH_STATE_UP)
+ return -EIO;
+ iob = qeth_get_buffer(&card->read);
+ if (!iob) {
+ PRINT_WARN("issue_next_read failed: no iob available!\n");
+ return -ENOMEM;
+ }
+ qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
+ wait_event(card->wait_q,
+ atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
+ QETH_DBF_TEXT(trace, 6, "noirqpnd");
+ rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
+ (addr_t) iob, 0, 0);
+ if (rc) {
+ PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
+ atomic_set(&card->read.irq_pending, 0);
+ qeth_schedule_recovery(card);
+ wake_up(&card->wait_q);
+ }
+ return rc;
+}
+
+static struct qeth_reply *
+qeth_alloc_reply(struct qeth_card *card)
+{
+ struct qeth_reply *reply;
+
+ reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
+ if (reply){
+ memset(reply, 0, sizeof(struct qeth_reply));
+ atomic_set(&reply->refcnt, 1);
+ reply->card = card;
+ };
+ return reply;
+}
+
+static void
+qeth_get_reply(struct qeth_reply *reply)
+{
+ WARN_ON(atomic_read(&reply->refcnt) <= 0);
+ atomic_inc(&reply->refcnt);
+}
+
+static void
+qeth_put_reply(struct qeth_reply *reply)
+{
+ WARN_ON(atomic_read(&reply->refcnt) <= 0);
+ if (atomic_dec_and_test(&reply->refcnt))
+ kfree(reply);
+}
+
+static void
+qeth_cmd_timeout(unsigned long data)
+{
+ struct qeth_reply *reply, *list_reply, *r;
+ unsigned long flags;
+
+ reply = (struct qeth_reply *) data;
+ spin_lock_irqsave(&reply->card->lock, flags);
+ list_for_each_entry_safe(list_reply, r,
+ &reply->card->cmd_waiter_list, list) {
+ if (reply == list_reply){
+ qeth_get_reply(reply);
+ list_del_init(&reply->list);
+ spin_unlock_irqrestore(&reply->card->lock, flags);
+ reply->rc = -ETIME;
+ reply->received = 1;
+ wake_up(&reply->wait_q);
+ qeth_put_reply(reply);
+ return;
+ }
+ }
+ spin_unlock_irqrestore(&reply->card->lock, flags);
+}
+
+static void
+qeth_reset_ip_addresses(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(trace, 2, "rstipadd");
+
+ qeth_clear_ip_list(card, 0, 1);
+ /* this function will also schedule the SET_IP_THREAD */
+ qeth_set_multicast_list(card->dev);
+}
+
+static struct qeth_ipa_cmd *
+qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
+{
+ struct qeth_ipa_cmd *cmd = NULL;
+
+ QETH_DBF_TEXT(trace,5,"chkipad");
+ if (IS_IPA(iob->data)){
+ cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
+ if (IS_IPA_REPLY(cmd))
+ return cmd;
+ else {
+ switch (cmd->hdr.command) {
+ case IPA_CMD_STOPLAN:
+ PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
+ "there is a network problem or "
+ "someone pulled the cable or "
+ "disabled the port.\n",
+ QETH_CARD_IFNAME(card),
+ card->info.chpid);
+ card->lan_online = 0;
+ netif_carrier_off(card->dev);
+ return NULL;
+ case IPA_CMD_STARTLAN:
+ PRINT_INFO("Link reestablished on %s "
+ "(CHPID 0x%X). Scheduling "
+ "IP address reset.\n",
+ QETH_CARD_IFNAME(card),
+ card->info.chpid);
+ card->lan_online = 1;
+ netif_carrier_on(card->dev);
+ qeth_reset_ip_addresses(card);
+ return NULL;
+ case IPA_CMD_REGISTER_LOCAL_ADDR:
+ QETH_DBF_TEXT(trace,3, "irla");
+ break;
+ case IPA_CMD_UNREGISTER_LOCAL_ADDR:
+ QETH_DBF_TEXT(trace,3, "urla");
+ break;
+ default:
+ PRINT_WARN("Received data is IPA "
+ "but not a reply!\n");
+ break;
+ }
+ }
+ }
+ return cmd;
+}
+
+/**
+ * wake all waiting ipa commands
+ */
+static void
+qeth_clear_ipacmd_list(struct qeth_card *card)
+{
+ struct qeth_reply *reply, *r;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace, 4, "clipalst");
+
+ spin_lock_irqsave(&card->lock, flags);
+ list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
+ qeth_get_reply(reply);
+ reply->rc = -EIO;
+ reply->received = 1;
+ list_del_init(&reply->list);
+ wake_up(&reply->wait_q);
+ qeth_put_reply(reply);
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static void
+qeth_send_control_data_cb(struct qeth_channel *channel,
+ struct qeth_cmd_buffer *iob)
+{
+ struct qeth_card *card;
+ struct qeth_reply *reply, *r;
+ struct qeth_ipa_cmd *cmd;
+ unsigned long flags;
+ int keep_reply;
+
+ QETH_DBF_TEXT(trace,4,"sndctlcb");
+
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ if (qeth_check_idx_response(iob->data)) {
+ qeth_clear_ipacmd_list(card);
+ qeth_schedule_recovery(card);
+ goto out;
+ }
+
+ cmd = qeth_check_ipa_data(card, iob);
+ if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
+ goto out;
+
+ spin_lock_irqsave(&card->lock, flags);
+ list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
+ if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
+ ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
+ qeth_get_reply(reply);
+ list_del_init(&reply->list);
+ spin_unlock_irqrestore(&card->lock, flags);
+ keep_reply = 0;
+ if (reply->callback != NULL) {
+ if (cmd) {
+ reply->offset = (__u16)((char*)cmd -
+ (char *)iob->data);
+ keep_reply = reply->callback(card,
+ reply,
+ (unsigned long)cmd);
+ }
+ else
+ keep_reply = reply->callback(card,
+ reply,
+ (unsigned long)iob);
+ }
+ if (cmd)
+ reply->rc = (u16) cmd->hdr.return_code;
+ else if (iob->rc)
+ reply->rc = iob->rc;
+ if (keep_reply) {
+ spin_lock_irqsave(&card->lock, flags);
+ list_add_tail(&reply->list,
+ &card->cmd_waiter_list);
+ spin_unlock_irqrestore(&card->lock, flags);
+ } else {
+ reply->received = 1;
+ wake_up(&reply->wait_q);
+ }
+ qeth_put_reply(reply);
+ goto out;
+ }
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+out:
+ memcpy(&card->seqno.pdu_hdr_ack,
+ QETH_PDU_HEADER_SEQ_NO(iob->data),
+ QETH_SEQ_NO_LENGTH);
+ qeth_release_buffer(channel,iob);
+}
+
+static int
+qeth_send_control_data(struct qeth_card *card, int len,
+ struct qeth_cmd_buffer *iob,
+ int (*reply_cb)
+ (struct qeth_card *, struct qeth_reply*, unsigned long),
+ void *reply_param)
+
+{
+ int rc;
+ unsigned long flags;
+ struct qeth_reply *reply;
+ struct timer_list timer;
+
+ QETH_DBF_TEXT(trace, 2, "sendctl");
+
+ qeth_setup_ccw(&card->write,iob->data,len);
+
+ memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
+ &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
+ card->seqno.trans_hdr++;
+
+ memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
+ &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
+ card->seqno.pdu_hdr++;
+ memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
+ &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
+ iob->callback = qeth_release_buffer;
+
+ reply = qeth_alloc_reply(card);
+ if (!reply) {
+ PRINT_WARN("Could no alloc qeth_reply!\n");
+ return -ENOMEM;
+ }
+ reply->callback = reply_cb;
+ reply->param = reply_param;
+ if (card->state == CARD_STATE_DOWN)
+ reply->seqno = QETH_IDX_COMMAND_SEQNO;
+ else
+ reply->seqno = card->seqno.ipa++;
+ init_timer(&timer);
+ timer.function = qeth_cmd_timeout;
+ timer.data = (unsigned long) reply;
+ if (IS_IPA(iob->data))
+ timer.expires = jiffies + QETH_IPA_TIMEOUT;
+ else
+ timer.expires = jiffies + QETH_TIMEOUT;
+ init_waitqueue_head(&reply->wait_q);
+ spin_lock_irqsave(&card->lock, flags);
+ list_add_tail(&reply->list, &card->cmd_waiter_list);
+ spin_unlock_irqrestore(&card->lock, flags);
+ QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
+ wait_event(card->wait_q,
+ atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
+ QETH_DBF_TEXT(trace, 6, "noirqpnd");
+ spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
+ rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
+ (addr_t) iob, 0, 0);
+ spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
+ if (rc){
+ PRINT_WARN("qeth_send_control_data: "
+ "ccw_device_start rc = %i\n", rc);
+ QETH_DBF_TEXT_(trace, 2, " err%d", rc);
+ spin_lock_irqsave(&card->lock, flags);
+ list_del_init(&reply->list);
+ qeth_put_reply(reply);
+ spin_unlock_irqrestore(&card->lock, flags);
+ qeth_release_buffer(iob->channel, iob);
+ atomic_set(&card->write.irq_pending, 0);
+ wake_up(&card->wait_q);
+ return rc;
+ }
+ add_timer(&timer);
+ wait_event(reply->wait_q, reply->received);
+ del_timer_sync(&timer);
+ rc = reply->rc;
+ qeth_put_reply(reply);
+ return rc;
+}
+
+static int
+qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
+ int (*reply_cb)
+ (struct qeth_card *,struct qeth_reply*, unsigned long),
+ void *reply_param)
+{
+ int rc;
+ char prot_type;
+
+ QETH_DBF_TEXT(trace,4,"sendipa");
+
+ memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
+
+ if (card->options.layer2)
+ prot_type = QETH_PROT_LAYER2;
+ else
+ prot_type = QETH_PROT_TCPIP;
+
+ memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
+ memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
+ &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
+
+ rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
+ reply_cb, reply_param);
+ return rc;
+}
+
+
+static int
+qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup, 2, "cmenblcb");
+
+ iob = (struct qeth_cmd_buffer *) data;
+ memcpy(&card->token.cm_filter_r,
+ QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
+ QETH_MPC_TOKEN_LENGTH);
+ QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
+ return 0;
+}
+
+static int
+qeth_cm_enable(struct qeth_card *card)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup,2,"cmenable");
+
+ iob = qeth_wait_for_buffer(&card->write);
+ memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
+ memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
+ &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
+ &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
+
+ rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
+ qeth_cm_enable_cb, NULL);
+ return rc;
+}
+
+static int
+qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup, 2, "cmsetpcb");
+
+ iob = (struct qeth_cmd_buffer *) data;
+ memcpy(&card->token.cm_connection_r,
+ QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
+ QETH_MPC_TOKEN_LENGTH);
+ QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
+ return 0;
+}
+
+static int
+qeth_cm_setup(struct qeth_card *card)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup,2,"cmsetup");
+
+ iob = qeth_wait_for_buffer(&card->write);
+ memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
+ memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
+ &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
+ &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
+ &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
+ rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
+ qeth_cm_setup_cb, NULL);
+ return rc;
+
+}
+
+static int
+qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+
+ __u16 mtu, framesize;
+ __u16 len;
+ __u8 link_type;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup, 2, "ulpenacb");
+
+ iob = (struct qeth_cmd_buffer *) data;
+ memcpy(&card->token.ulp_filter_r,
+ QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
+ QETH_MPC_TOKEN_LENGTH);
+ if (qeth_get_mtu_out_of_mpc(card->info.type)) {
+ memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
+ mtu = qeth_get_mtu_outof_framesize(framesize);
+ if (!mtu) {
+ iob->rc = -EINVAL;
+ QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
+ return 0;
+ }
+ card->info.max_mtu = mtu;
+ card->info.initial_mtu = mtu;
+ card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
+ } else {
+ card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
+ card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
+ card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
+ }
+
+ memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
+ if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
+ memcpy(&link_type,
+ QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
+ card->info.link_type = link_type;
+ } else
+ card->info.link_type = 0;
+ QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
+ return 0;
+}
+
+static int
+qeth_ulp_enable(struct qeth_card *card)
+{
+ int rc;
+ char prot_type;
+ struct qeth_cmd_buffer *iob;
+
+ /*FIXME: trace view callbacks*/
+ QETH_DBF_TEXT(setup,2,"ulpenabl");
+
+ iob = qeth_wait_for_buffer(&card->write);
+ memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
+
+ *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
+ (__u8) card->info.portno;
+ if (card->options.layer2)
+ prot_type = QETH_PROT_LAYER2;
+ else
+ prot_type = QETH_PROT_TCPIP;
+
+ memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
+ memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
+ &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
+ &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
+ card->info.portname, 9);
+ rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
+ qeth_ulp_enable_cb, NULL);
+ return rc;
+
+}
+
+static inline __u16
+__raw_devno_from_bus_id(char *id)
+{
+ id += (strlen(id) - 4);
+ return (__u16) simple_strtoul(id, &id, 16);
+}
+
+static int
+qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup, 2, "ulpstpcb");
+
+ iob = (struct qeth_cmd_buffer *) data;
+ memcpy(&card->token.ulp_connection_r,
+ QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
+ QETH_MPC_TOKEN_LENGTH);
+ QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
+ return 0;
+}
+
+static int
+qeth_ulp_setup(struct qeth_card *card)
+{
+ int rc;
+ __u16 temp;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup,2,"ulpsetup");
+
+ iob = qeth_wait_for_buffer(&card->write);
+ memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
+
+ memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
+ &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
+ &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
+ &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
+
+ temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
+ memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
+ temp = (card->info.cula << 8) + card->info.unit_addr2;
+ memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
+ rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
+ qeth_ulp_setup_cb, NULL);
+ return rc;
+}
+
+static inline int
+qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
+ unsigned int qdio_error,
+ unsigned int siga_error)
+{
+ int rc = 0;
+
+ if (qdio_error || siga_error) {
+ QETH_DBF_TEXT(trace, 2, "qdinerr");
+ QETH_DBF_TEXT(qerr, 2, "qdinerr");
+ QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
+ buf->buffer->element[15].flags & 0xff);
+ QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
+ buf->buffer->element[14].flags & 0xff);
+ QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
+ QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
+ rc = 1;
+ }
+ return rc;
+}
+
+static inline struct sk_buff *
+qeth_get_skb(unsigned int length)
+{
+ struct sk_buff* skb;
+#ifdef CONFIG_QETH_VLAN
+ if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
+ skb_reserve(skb, VLAN_HLEN);
+#else
+ skb = dev_alloc_skb(length);
+#endif
+ return skb;
+}
+
+static inline struct sk_buff *
+qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
+ struct qdio_buffer_element **__element, int *__offset,
+ struct qeth_hdr **hdr)
+{
+ struct qdio_buffer_element *element = *__element;
+ int offset = *__offset;
+ struct sk_buff *skb = NULL;
+ int skb_len;
+ void *data_ptr;
+ int data_len;
+
+ QETH_DBF_TEXT(trace,6,"nextskb");
+ /* qeth_hdr must not cross element boundaries */
+ if (element->length < offset + sizeof(struct qeth_hdr)){
+ if (qeth_is_last_sbale(element))
+ return NULL;
+ element++;
+ offset = 0;
+ if (element->length < sizeof(struct qeth_hdr))
+ return NULL;
+ }
+ *hdr = element->addr + offset;
+
+ offset += sizeof(struct qeth_hdr);
+ if (card->options.layer2)
+ skb_len = (*hdr)->hdr.l2.pkt_length;
+ else
+ skb_len = (*hdr)->hdr.l3.length;
+
+ if (!skb_len)
+ return NULL;
+ if (card->options.fake_ll){
+ if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
+ goto no_mem;
+ skb_pull(skb, QETH_FAKE_LL_LEN);
+ } else if (!(skb = qeth_get_skb(skb_len)))
+ goto no_mem;
+ data_ptr = element->addr + offset;
+ while (skb_len) {
+ data_len = min(skb_len, (int)(element->length - offset));
+ if (data_len)
+ memcpy(skb_put(skb, data_len), data_ptr, data_len);
+ skb_len -= data_len;
+ if (skb_len){
+ if (qeth_is_last_sbale(element)){
+ QETH_DBF_TEXT(trace,4,"unexeob");
+ QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
+ QETH_DBF_TEXT(qerr,2,"unexeob");
+ QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
+ QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
+ dev_kfree_skb_any(skb);
+ card->stats.rx_errors++;
+ return NULL;
+ }
+ element++;
+ offset = 0;
+ data_ptr = element->addr;
+ } else {
+ offset += data_len;
+ }
+ }
+ *__element = element;
+ *__offset = offset;
+ return skb;
+no_mem:
+ if (net_ratelimit()){
+ PRINT_WARN("No memory for packet received on %s.\n",
+ QETH_CARD_IFNAME(card));
+ QETH_DBF_TEXT(trace,2,"noskbmem");
+ QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
+ }
+ card->stats.rx_dropped++;
+ return NULL;
+}
+
+static inline unsigned short
+qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
+{
+ struct qeth_card *card;
+ struct ethhdr *eth;
+
+ QETH_DBF_TEXT(trace,6,"typtrans");
+
+ card = (struct qeth_card *)dev->priv;
+#ifdef CONFIG_TR
+ if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
+ (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
+ return tr_type_trans(skb,dev);
+#endif /* CONFIG_TR */
+ skb->mac.raw = skb->data;
+ skb_pull(skb, ETH_HLEN );
+ eth = eth_hdr(skb);
+
+ if (*eth->h_dest & 1) {
+ if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
+ skb->pkt_type = PACKET_BROADCAST;
+ else
+ skb->pkt_type = PACKET_MULTICAST;
+ } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
+ skb->pkt_type = PACKET_OTHERHOST;
+
+ if (ntohs(eth->h_proto) >= 1536)
+ return eth->h_proto;
+ if (*(unsigned short *) (skb->data) == 0xFFFF)
+ return htons(ETH_P_802_3);
+ return htons(ETH_P_802_2);
+}
+
+static inline void
+qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_hdr *hdr)
+{
+ struct ethhdr *fake_hdr;
+ struct iphdr *ip_hdr;
+
+ QETH_DBF_TEXT(trace,5,"skbfake");
+ skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
+ /* this is a fake ethernet header */
+ fake_hdr = (struct ethhdr *) skb->mac.raw;
+
+ /* the destination MAC address */
+ switch (skb->pkt_type){
+ case PACKET_MULTICAST:
+ switch (skb->protocol){
+#ifdef CONFIG_QETH_IPV6
+ case __constant_htons(ETH_P_IPV6):
+ ndisc_mc_map((struct in6_addr *)
+ skb->data + QETH_FAKE_LL_V6_ADDR_POS,
+ fake_hdr->h_dest, card->dev, 0);
+ break;
+#endif /* CONFIG_QETH_IPV6 */
+ case __constant_htons(ETH_P_IP):
+ ip_hdr = (struct iphdr *)skb->data;
+ if (card->dev->type == ARPHRD_IEEE802_TR)
+ ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
+ else
+ ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
+ break;
+ default:
+ memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
+ }
+ break;
+ case PACKET_BROADCAST:
+ memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
+ break;
+ default:
+ memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
+ }
+ /* the source MAC address */
+ if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
+ memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
+ else
+ memset(fake_hdr->h_source, 0, ETH_ALEN);
+ /* the protocol */
+ fake_hdr->h_proto = skb->protocol;
+}
+
+static inline void
+qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_hdr *hdr)
+{
+#ifdef CONFIG_QETH_VLAN
+ u16 *vlan_tag;
+
+ if (hdr->hdr.l3.ext_flags &
+ (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
+ vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
+ *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
+ hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
+ *(vlan_tag + 1) = skb->protocol;
+ skb->protocol = __constant_htons(ETH_P_8021Q);
+ }
+#endif /* CONFIG_QETH_VLAN */
+}
+
+static inline __u16
+qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_hdr *hdr)
+{
+ unsigned short vlan_id = 0;
+#ifdef CONFIG_QETH_VLAN
+ struct vlan_hdr *vhdr;
+#endif
+
+ skb->pkt_type = PACKET_HOST;
+ skb->protocol = qeth_type_trans(skb, skb->dev);
+ if (card->options.checksum_type == NO_CHECKSUMMING)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
+#ifdef CONFIG_QETH_VLAN
+ if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
+ vhdr = (struct vlan_hdr *) skb->data;
+ skb->protocol =
+ __constant_htons(vhdr->h_vlan_encapsulated_proto);
+ vlan_id = hdr->hdr.l2.vlan_id;
+ skb_pull(skb, VLAN_HLEN);
+ }
+#endif
+ return vlan_id;
+}
+
+static inline void
+qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_hdr *hdr)
+{
+#ifdef CONFIG_QETH_IPV6
+ if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
+ skb->pkt_type = PACKET_HOST;
+ skb->protocol = qeth_type_trans(skb, card->dev);
+ return;
+ }
+#endif /* CONFIG_QETH_IPV6 */
+ skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
+ ETH_P_IP);
+ switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
+ case QETH_CAST_UNICAST:
+ skb->pkt_type = PACKET_HOST;
+ break;
+ case QETH_CAST_MULTICAST:
+ skb->pkt_type = PACKET_MULTICAST;
+ card->stats.multicast++;
+ break;
+ case QETH_CAST_BROADCAST:
+ skb->pkt_type = PACKET_BROADCAST;
+ card->stats.multicast++;
+ break;
+ case QETH_CAST_ANYCAST:
+ case QETH_CAST_NOCAST:
+ default:
+ skb->pkt_type = PACKET_HOST;
+ }
+ qeth_rebuild_skb_vlan(card, skb, hdr);
+ if (card->options.fake_ll)
+ qeth_rebuild_skb_fake_ll(card, skb, hdr);
+ else
+ skb->mac.raw = skb->data;
+ skb->ip_summed = card->options.checksum_type;
+ if (card->options.checksum_type == HW_CHECKSUMMING){
+ if ( (hdr->hdr.l3.ext_flags &
+ (QETH_HDR_EXT_CSUM_HDR_REQ |
+ QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
+ (QETH_HDR_EXT_CSUM_HDR_REQ |
+ QETH_HDR_EXT_CSUM_TRANSP_REQ) )
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = SW_CHECKSUMMING;
+ }
+}
+
+static inline void
+qeth_process_inbound_buffer(struct qeth_card *card,
+ struct qeth_qdio_buffer *buf, int index)
+{
+ struct qdio_buffer_element *element;
+ struct sk_buff *skb;
+ struct qeth_hdr *hdr;
+ int offset;
+ int rxrc;
+ __u16 vlan_tag = 0;
+
+ /* get first element of current buffer */
+ element = (struct qdio_buffer_element *)&buf->buffer->element[0];
+ offset = 0;
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.bufs_rec++;
+#endif
+ while((skb = qeth_get_next_skb(card, buf->buffer, &element,
+ &offset, &hdr))) {
+ skb->dev = card->dev;
+ if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
+ vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
+ else
+ qeth_rebuild_skb(card, skb, hdr);
+ /* is device UP ? */
+ if (!(card->dev->flags & IFF_UP)){
+ dev_kfree_skb_any(skb);
+ continue;
+ }
+#ifdef CONFIG_QETH_VLAN
+ if (vlan_tag)
+ vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
+ else
+#endif
+ rxrc = netif_rx(skb);
+ card->dev->last_rx = jiffies;
+ card->stats.rx_packets++;
+ card->stats.rx_bytes += skb->len;
+ }
+}
+
+static inline struct qeth_buffer_pool_entry *
+qeth_get_buffer_pool_entry(struct qeth_card *card)
+{
+ struct qeth_buffer_pool_entry *entry;
+
+ QETH_DBF_TEXT(trace, 6, "gtbfplen");
+ if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
+ entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
+ struct qeth_buffer_pool_entry, list);
+ list_del_init(&entry->list);
+ return entry;
+ }
+ return NULL;
+}
+
+static inline void
+qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
+{
+ struct qeth_buffer_pool_entry *pool_entry;
+ int i;
+
+ pool_entry = qeth_get_buffer_pool_entry(card);
+ /*
+ * since the buffer is accessed only from the input_tasklet
+ * there shouldn't be a need to synchronize; also, since we use
+ * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
+ * buffers
+ */
+ BUG_ON(!pool_entry);
+
+ buf->pool_entry = pool_entry;
+ for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
+ buf->buffer->element[i].length = PAGE_SIZE;
+ buf->buffer->element[i].addr = pool_entry->elements[i];
+ if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
+ buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
+ else
+ buf->buffer->element[i].flags = 0;
+ }
+ buf->state = QETH_QDIO_BUF_EMPTY;
+}
+
+static inline void
+qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
+ struct qeth_qdio_out_buffer *buf)
+{
+ int i;
+ struct sk_buff *skb;
+
+ /* is PCI flag set on buffer? */
+ if (buf->buffer->element[0].flags & 0x40)
+ atomic_dec(&queue->set_pci_flags_count);
+
+ while ((skb = skb_dequeue(&buf->skb_list))){
+ atomic_dec(&skb->users);
+ dev_kfree_skb_any(skb);
+ }
+ qeth_eddp_buf_release_contexts(buf);
+ for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
+ buf->buffer->element[i].length = 0;
+ buf->buffer->element[i].addr = NULL;
+ buf->buffer->element[i].flags = 0;
+ }
+ buf->next_element_to_fill = 0;
+ atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
+}
+
+static inline void
+qeth_queue_input_buffer(struct qeth_card *card, int index)
+{
+ struct qeth_qdio_q *queue = card->qdio.in_q;
+ int count;
+ int i;
+ int rc;
+
+ QETH_DBF_TEXT(trace,6,"queinbuf");
+ count = (index < queue->next_buf_to_init)?
+ card->qdio.in_buf_pool.buf_count -
+ (queue->next_buf_to_init - index) :
+ card->qdio.in_buf_pool.buf_count -
+ (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
+ /* only requeue at a certain threshold to avoid SIGAs */
+ if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
+ for (i = queue->next_buf_to_init;
+ i < queue->next_buf_to_init + count; ++i)
+ qeth_init_input_buffer(card,
+ &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
+ /*
+ * according to old code it should be avoided to requeue all
+ * 128 buffers in order to benefit from PCI avoidance.
+ * this function keeps at least one buffer (the buffer at
+ * 'index') un-requeued -> this buffer is the first buffer that
+ * will be requeued the next time
+ */
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.inbound_do_qdio_cnt++;
+ card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
+#endif
+ rc = do_QDIO(CARD_DDEV(card),
+ QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
+ 0, queue->next_buf_to_init, count, NULL);
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
+ card->perf_stats.inbound_do_qdio_start_time;
+#endif
+ if (rc){
+ PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
+ "return %i (device %s).\n",
+ rc, CARD_DDEV_ID(card));
+ QETH_DBF_TEXT(trace,2,"qinberr");
+ QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
+ }
+ queue->next_buf_to_init = (queue->next_buf_to_init + count) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ }
+}
+
+static inline void
+qeth_put_buffer_pool_entry(struct qeth_card *card,
+ struct qeth_buffer_pool_entry *entry)
+{
+ QETH_DBF_TEXT(trace, 6, "ptbfplen");
+ list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
+}
+
+static void
+qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
+ unsigned int qdio_err, unsigned int siga_err,
+ unsigned int queue, int first_element, int count,
+ unsigned long card_ptr)
+{
+ struct net_device *net_dev;
+ struct qeth_card *card;
+ struct qeth_qdio_buffer *buffer;
+ int index;
+ int i;
+
+ QETH_DBF_TEXT(trace, 6, "qdinput");
+ card = (struct qeth_card *) card_ptr;
+ net_dev = card->dev;
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.inbound_cnt++;
+ card->perf_stats.inbound_start_time = qeth_get_micros();
+#endif
+ if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
+ if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
+ QETH_DBF_TEXT(trace, 1,"qdinchk");
+ QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
+ QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
+ QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
+ qeth_schedule_recovery(card);
+ return;
+ }
+ }
+ for (i = first_element; i < (first_element + count); ++i) {
+ index = i % QDIO_MAX_BUFFERS_PER_Q;
+ buffer = &card->qdio.in_q->bufs[index];
+ if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
+ qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
+ qeth_process_inbound_buffer(card, buffer, index);
+ /* clear buffer and give back to hardware */
+ qeth_put_buffer_pool_entry(card, buffer->pool_entry);
+ qeth_queue_input_buffer(card, index);
+ }
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.inbound_time += qeth_get_micros() -
+ card->perf_stats.inbound_start_time;
+#endif
+}
+
+static inline int
+qeth_handle_send_error(struct qeth_card *card,
+ struct qeth_qdio_out_buffer *buffer,
+ int qdio_err, int siga_err)
+{
+ int sbalf15 = buffer->buffer->element[15].flags & 0xff;
+ int cc = siga_err & 3;
+
+ QETH_DBF_TEXT(trace, 6, "hdsnderr");
+ switch (cc) {
+ case 0:
+ if (qdio_err){
+ QETH_DBF_TEXT(trace, 1,"lnkfail");
+ QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
+ QETH_DBF_TEXT_(trace,1,"%04x %02x",
+ (u16)qdio_err, (u8)sbalf15);
+ return QETH_SEND_ERROR_LINK_FAILURE;
+ }
+ return QETH_SEND_ERROR_NONE;
+ case 2:
+ if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
+ QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
+ QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
+ return QETH_SEND_ERROR_KICK_IT;
+ }
+ if ((sbalf15 >= 15) && (sbalf15 <= 31))
+ return QETH_SEND_ERROR_RETRY;
+ return QETH_SEND_ERROR_LINK_FAILURE;
+ /* look at qdio_error and sbalf 15 */
+ case 1:
+ QETH_DBF_TEXT(trace, 1, "SIGAcc1");
+ QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
+ return QETH_SEND_ERROR_LINK_FAILURE;
+ case 3:
+ QETH_DBF_TEXT(trace, 1, "SIGAcc3");
+ QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
+ return QETH_SEND_ERROR_KICK_IT;
+ }
+ return QETH_SEND_ERROR_LINK_FAILURE;
+}
+
+void
+qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
+ int index, int count)
+{
+ struct qeth_qdio_out_buffer *buf;
+ int rc;
+ int i;
+
+ QETH_DBF_TEXT(trace, 6, "flushbuf");
+
+ for (i = index; i < index + count; ++i) {
+ buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
+ buf->buffer->element[buf->next_element_to_fill - 1].flags |=
+ SBAL_FLAGS_LAST_ENTRY;
+
+ if (queue->card->info.type == QETH_CARD_TYPE_IQD)
+ continue;
+
+ if (!queue->do_pack){
+ if ((atomic_read(&queue->used_buffers) >=
+ (QETH_HIGH_WATERMARK_PACK -
+ QETH_WATERMARK_PACK_FUZZ)) &&
+ !atomic_read(&queue->set_pci_flags_count)){
+ /* it's likely that we'll go to packing
+ * mode soon */
+ atomic_inc(&queue->set_pci_flags_count);
+ buf->buffer->element[0].flags |= 0x40;
+ }
+ } else {
+ if (!atomic_read(&queue->set_pci_flags_count)){
+ /*
+ * there's no outstanding PCI any more, so we
+ * have to request a PCI to be sure the the PCI
+ * will wake at some time in the future then we
+ * can flush packed buffers that might still be
+ * hanging around, which can happen if no
+ * further send was requested by the stack
+ */
+ atomic_inc(&queue->set_pci_flags_count);
+ buf->buffer->element[0].flags |= 0x40;
+ }
+ }
+ }
+
+ queue->card->dev->trans_start = jiffies;
+#ifdef CONFIG_QETH_PERF_STATS
+ queue->card->perf_stats.outbound_do_qdio_cnt++;
+ queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
+#endif
+ if (under_int)
+ rc = do_QDIO(CARD_DDEV(queue->card),
+ QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
+ queue->queue_no, index, count, NULL);
+ else
+ rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
+ queue->queue_no, index, count, NULL);
+#ifdef CONFIG_QETH_PERF_STATS
+ queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
+ queue->card->perf_stats.outbound_do_qdio_start_time;
+#endif
+ if (rc){
+ QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
+ "returned error (%i) on device %s.",
+ rc, CARD_DDEV_ID(queue->card));
+ QETH_DBF_TEXT(trace, 2, "flushbuf");
+ QETH_DBF_TEXT_(trace, 2, " err%d", rc);
+ queue->card->stats.tx_errors += count;
+ /* this must not happen under normal circumstances. if it
+ * happens something is really wrong -> recover */
+ qeth_schedule_recovery(queue->card);
+ return;
+ }
+ atomic_add(count, &queue->used_buffers);
+#ifdef CONFIG_QETH_PERF_STATS
+ queue->card->perf_stats.bufs_sent += count;
+#endif
+}
+
+/*
+ * Switched to packing state if the number of used buffers on a queue
+ * reaches a certain limit.
+ */
+static inline void
+qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
+{
+ if (!queue->do_pack) {
+ if (atomic_read(&queue->used_buffers)
+ >= QETH_HIGH_WATERMARK_PACK){
+ /* switch non-PACKING -> PACKING */
+ QETH_DBF_TEXT(trace, 6, "np->pack");
+#ifdef CONFIG_QETH_PERF_STATS
+ queue->card->perf_stats.sc_dp_p++;
+#endif
+ queue->do_pack = 1;
+ }
+ }
+}
+
+/*
+ * Switches from packing to non-packing mode. If there is a packing
+ * buffer on the queue this buffer will be prepared to be flushed.
+ * In that case 1 is returned to inform the caller. If no buffer
+ * has to be flushed, zero is returned.
+ */
+static inline int
+qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
+{
+ struct qeth_qdio_out_buffer *buffer;
+ int flush_count = 0;
+
+ if (queue->do_pack) {
+ if (atomic_read(&queue->used_buffers)
+ <= QETH_LOW_WATERMARK_PACK) {
+ /* switch PACKING -> non-PACKING */
+ QETH_DBF_TEXT(trace, 6, "pack->np");
+#ifdef CONFIG_QETH_PERF_STATS
+ queue->card->perf_stats.sc_p_dp++;
+#endif
+ queue->do_pack = 0;
+ /* flush packing buffers */
+ buffer = &queue->bufs[queue->next_buf_to_fill];
+ if ((atomic_read(&buffer->state) ==
+ QETH_QDIO_BUF_EMPTY) &&
+ (buffer->next_element_to_fill > 0)) {
+ atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
+ flush_count++;
+ queue->next_buf_to_fill =
+ (queue->next_buf_to_fill + 1) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ }
+ }
+ }
+ return flush_count;
+}
+
+/*
+ * Called to flush a packing buffer if no more pci flags are on the queue.
+ * Checks if there is a packing buffer and prepares it to be flushed.
+ * In that case returns 1, otherwise zero.
+ */
+static inline int
+qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
+{
+ struct qeth_qdio_out_buffer *buffer;
+
+ buffer = &queue->bufs[queue->next_buf_to_fill];
+ if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
+ (buffer->next_element_to_fill > 0)){
+ /* it's a packing buffer */
+ atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
+ queue->next_buf_to_fill =
+ (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
+ return 1;
+ }
+ return 0;
+}
+
+static inline void
+qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
+{
+ int index;
+ int flush_cnt = 0;
+ int q_was_packing = 0;
+
+ /*
+ * check if weed have to switch to non-packing mode or if
+ * we have to get a pci flag out on the queue
+ */
+ if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
+ !atomic_read(&queue->set_pci_flags_count)){
+ if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
+ QETH_OUT_Q_UNLOCKED) {
+ /*
+ * If we get in here, there was no action in
+ * do_send_packet. So, we check if there is a
+ * packing buffer to be flushed here.
+ */
+ netif_stop_queue(queue->card->dev);
+ index = queue->next_buf_to_fill;
+ q_was_packing = queue->do_pack;
+ flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
+ if (!flush_cnt &&
+ !atomic_read(&queue->set_pci_flags_count))
+ flush_cnt +=
+ qeth_flush_buffers_on_no_pci(queue);
+#ifdef CONFIG_QETH_PERF_STATS
+ if (q_was_packing)
+ queue->card->perf_stats.bufs_sent_pack +=
+ flush_cnt;
+#endif
+ if (flush_cnt)
+ qeth_flush_buffers(queue, 1, index, flush_cnt);
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ }
+ }
+}
+
+static void
+qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
+ unsigned int qdio_error, unsigned int siga_error,
+ unsigned int __queue, int first_element, int count,
+ unsigned long card_ptr)
+{
+ struct qeth_card *card = (struct qeth_card *) card_ptr;
+ struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
+ struct qeth_qdio_out_buffer *buffer;
+ int i;
+
+ QETH_DBF_TEXT(trace, 6, "qdouhdl");
+ if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
+ if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
+ QETH_DBF_SPRINTF(trace, 2, "On device %s: "
+ "received active check "
+ "condition (0x%08x).",
+ CARD_BUS_ID(card), status);
+ QETH_DBF_TEXT(trace, 2, "chkcond");
+ QETH_DBF_TEXT_(trace, 2, "%08x", status);
+ netif_stop_queue(card->dev);
+ qeth_schedule_recovery(card);
+ return;
+ }
+ }
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.outbound_handler_cnt++;
+ card->perf_stats.outbound_handler_start_time = qeth_get_micros();
+#endif
+ for(i = first_element; i < (first_element + count); ++i){
+ buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
+ /*we only handle the KICK_IT error by doing a recovery */
+ if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
+ == QETH_SEND_ERROR_KICK_IT){
+ netif_stop_queue(card->dev);
+ qeth_schedule_recovery(card);
+ return;
+ }
+ qeth_clear_output_buffer(queue, buffer);
+ }
+ atomic_sub(count, &queue->used_buffers);
+ /* check if we need to do something on this outbound queue */
+ if (card->info.type != QETH_CARD_TYPE_IQD)
+ qeth_check_outbound_queue(queue);
+
+ netif_wake_queue(queue->card->dev);
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.outbound_handler_time += qeth_get_micros() -
+ card->perf_stats.outbound_handler_start_time;
+#endif
+}
+
+static void
+qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
+{
+
+ param_field[0] = _ascebc['P'];
+ param_field[1] = _ascebc['C'];
+ param_field[2] = _ascebc['I'];
+ param_field[3] = _ascebc['T'];
+ *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
+ *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
+ *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
+}
+
+static void
+qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
+{
+ param_field[16] = _ascebc['B'];
+ param_field[17] = _ascebc['L'];
+ param_field[18] = _ascebc['K'];
+ param_field[19] = _ascebc['T'];
+ *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
+ *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
+ *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
+}
+
+static void
+qeth_initialize_working_pool_list(struct qeth_card *card)
+{
+ struct qeth_buffer_pool_entry *entry;
+
+ QETH_DBF_TEXT(trace,5,"inwrklst");
+
+ list_for_each_entry(entry,
+ &card->qdio.init_pool.entry_list, init_list) {
+ qeth_put_buffer_pool_entry(card,entry);
+ }
+}
+
+static void
+qeth_clear_working_pool_list(struct qeth_card *card)
+{
+ struct qeth_buffer_pool_entry *pool_entry, *tmp;
+
+ QETH_DBF_TEXT(trace,5,"clwrklst");
+ list_for_each_entry_safe(pool_entry, tmp,
+ &card->qdio.in_buf_pool.entry_list, list){
+ list_del(&pool_entry->list);
+ }
+}
+
+static void
+qeth_free_buffer_pool(struct qeth_card *card)
+{
+ struct qeth_buffer_pool_entry *pool_entry, *tmp;
+ int i=0;
+ QETH_DBF_TEXT(trace,5,"freepool");
+ list_for_each_entry_safe(pool_entry, tmp,
+ &card->qdio.init_pool.entry_list, init_list){
+ for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
+ free_page((unsigned long)pool_entry->elements[i]);
+ list_del(&pool_entry->init_list);
+ kfree(pool_entry);
+ }
+}
+
+static int
+qeth_alloc_buffer_pool(struct qeth_card *card)
+{
+ struct qeth_buffer_pool_entry *pool_entry;
+ void *ptr;
+ int i, j;
+
+ QETH_DBF_TEXT(trace,5,"alocpool");
+ for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
+ pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
+ if (!pool_entry){
+ qeth_free_buffer_pool(card);
+ return -ENOMEM;
+ }
+ for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
+ ptr = (void *) __get_free_page(GFP_KERNEL);
+ if (!ptr) {
+ while (j > 0)
+ free_page((unsigned long)
+ pool_entry->elements[--j]);
+ kfree(pool_entry);
+ qeth_free_buffer_pool(card);
+ return -ENOMEM;
+ }
+ pool_entry->elements[j] = ptr;
+ }
+ list_add(&pool_entry->init_list,
+ &card->qdio.init_pool.entry_list);
+ }
+ return 0;
+}
+
+int
+qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
+{
+ QETH_DBF_TEXT(trace, 2, "realcbp");
+
+ if ((card->state != CARD_STATE_DOWN) &&
+ (card->state != CARD_STATE_RECOVER))
+ return -EPERM;
+
+ /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
+ qeth_clear_working_pool_list(card);
+ qeth_free_buffer_pool(card);
+ card->qdio.in_buf_pool.buf_count = bufcnt;
+ card->qdio.init_pool.buf_count = bufcnt;
+ return qeth_alloc_buffer_pool(card);
+}
+
+static int
+qeth_alloc_qdio_buffers(struct qeth_card *card)
+{
+ int i, j;
+
+ QETH_DBF_TEXT(setup, 2, "allcqdbf");
+
+ if (card->qdio.state == QETH_QDIO_ALLOCATED)
+ return 0;
+
+ card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
+ if (!card->qdio.in_q)
+ return - ENOMEM;
+ QETH_DBF_TEXT(setup, 2, "inq");
+ QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
+ memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
+ /* give inbound qeth_qdio_buffers their qdio_buffers */
+ for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
+ card->qdio.in_q->bufs[i].buffer =
+ &card->qdio.in_q->qdio_bufs[i];
+ /* inbound buffer pool */
+ if (qeth_alloc_buffer_pool(card)){
+ kfree(card->qdio.in_q);
+ return -ENOMEM;
+ }
+ /* outbound */
+ card->qdio.out_qs =
+ kmalloc(card->qdio.no_out_queues *
+ sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
+ if (!card->qdio.out_qs){
+ qeth_free_buffer_pool(card);
+ return -ENOMEM;
+ }
+ for (i = 0; i < card->qdio.no_out_queues; ++i){
+ card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
+ GFP_KERNEL);
+ if (!card->qdio.out_qs[i]){
+ while (i > 0)
+ kfree(card->qdio.out_qs[--i]);
+ kfree(card->qdio.out_qs);
+ return -ENOMEM;
+ }
+ QETH_DBF_TEXT_(setup, 2, "outq %i", i);
+ QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
+ memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
+ card->qdio.out_qs[i]->queue_no = i;
+ /* give outbound qeth_qdio_buffers their qdio_buffers */
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
+ card->qdio.out_qs[i]->bufs[j].buffer =
+ &card->qdio.out_qs[i]->qdio_bufs[j];
+ skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
+ skb_list);
+ INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
+ }
+ }
+ card->qdio.state = QETH_QDIO_ALLOCATED;
+ return 0;
+}
+
+static void
+qeth_free_qdio_buffers(struct qeth_card *card)
+{
+ int i, j;
+
+ QETH_DBF_TEXT(trace, 2, "freeqdbf");
+ if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
+ return;
+ kfree(card->qdio.in_q);
+ /* inbound buffer pool */
+ qeth_free_buffer_pool(card);
+ /* free outbound qdio_qs */
+ for (i = 0; i < card->qdio.no_out_queues; ++i){
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
+ qeth_clear_output_buffer(card->qdio.out_qs[i],
+ &card->qdio.out_qs[i]->bufs[j]);
+ kfree(card->qdio.out_qs[i]);
+ }
+ kfree(card->qdio.out_qs);
+ card->qdio.state = QETH_QDIO_UNINITIALIZED;
+}
+
+static void
+qeth_clear_qdio_buffers(struct qeth_card *card)
+{
+ int i, j;
+
+ QETH_DBF_TEXT(trace, 2, "clearqdbf");
+ /* clear outbound buffers to free skbs */
+ for (i = 0; i < card->qdio.no_out_queues; ++i)
+ if (card->qdio.out_qs[i]){
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
+ qeth_clear_output_buffer(card->qdio.out_qs[i],
+ &card->qdio.out_qs[i]->bufs[j]);
+ }
+}
+
+static void
+qeth_init_qdio_info(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(setup, 4, "intqdinf");
+ card->qdio.state = QETH_QDIO_UNINITIALIZED;
+ /* inbound */
+ card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
+ card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
+ card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
+ INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
+ INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
+ /* outbound */
+ card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
+ card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
+}
+
+static int
+qeth_init_qdio_queues(struct qeth_card *card)
+{
+ int i, j;
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "initqdqs");
+
+ /* inbound queue */
+ memset(card->qdio.in_q->qdio_bufs, 0,
+ QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
+ qeth_initialize_working_pool_list(card);
+ /*give only as many buffers to hardware as we have buffer pool entries*/
+ for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
+ qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
+ card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
+ rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
+ card->qdio.in_buf_pool.buf_count - 1, NULL);
+ if (rc) {
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ return rc;
+ }
+ rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
+ if (rc) {
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ return rc;
+ }
+ /* outbound queue */
+ for (i = 0; i < card->qdio.no_out_queues; ++i){
+ memset(card->qdio.out_qs[i]->qdio_bufs, 0,
+ QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
+ qeth_clear_output_buffer(card->qdio.out_qs[i],
+ &card->qdio.out_qs[i]->bufs[j]);
+ }
+ card->qdio.out_qs[i]->card = card;
+ card->qdio.out_qs[i]->next_buf_to_fill = 0;
+ card->qdio.out_qs[i]->do_pack = 0;
+ atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
+ atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
+ atomic_set(&card->qdio.out_qs[i]->state,
+ QETH_OUT_Q_UNLOCKED);
+ }
+ return 0;
+}
+
+static int
+qeth_qdio_establish(struct qeth_card *card)
+{
+ struct qdio_initialize init_data;
+ char *qib_param_field;
+ struct qdio_buffer **in_sbal_ptrs;
+ struct qdio_buffer **out_sbal_ptrs;
+ int i, j, k;
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "qdioest");
+
+ qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
+ GFP_KERNEL);
+ if (!qib_param_field)
+ return -ENOMEM;
+
+ memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
+
+ qeth_create_qib_param_field(card, qib_param_field);
+ qeth_create_qib_param_field_blkt(card, qib_param_field);
+
+ in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
+ GFP_KERNEL);
+ if (!in_sbal_ptrs) {
+ kfree(qib_param_field);
+ return -ENOMEM;
+ }
+ for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
+ in_sbal_ptrs[i] = (struct qdio_buffer *)
+ virt_to_phys(card->qdio.in_q->bufs[i].buffer);
+
+ out_sbal_ptrs =
+ kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
+ sizeof(void *), GFP_KERNEL);
+ if (!out_sbal_ptrs) {
+ kfree(in_sbal_ptrs);
+ kfree(qib_param_field);
+ return -ENOMEM;
+ }
+ for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
+ for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
+ out_sbal_ptrs[k] = (struct qdio_buffer *)
+ virt_to_phys(card->qdio.out_qs[i]->
+ bufs[j].buffer);
+ }
+
+ memset(&init_data, 0, sizeof(struct qdio_initialize));
+ init_data.cdev = CARD_DDEV(card);
+ init_data.q_format = qeth_get_qdio_q_format(card);
+ init_data.qib_param_field_format = 0;
+ init_data.qib_param_field = qib_param_field;
+ init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
+ init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
+ init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
+ init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
+ init_data.no_input_qs = 1;
+ init_data.no_output_qs = card->qdio.no_out_queues;
+ init_data.input_handler = (qdio_handler_t *)
+ qeth_qdio_input_handler;
+ init_data.output_handler = (qdio_handler_t *)
+ qeth_qdio_output_handler;
+ init_data.int_parm = (unsigned long) card;
+ init_data.flags = QDIO_INBOUND_0COPY_SBALS |
+ QDIO_OUTBOUND_0COPY_SBALS |
+ QDIO_USE_OUTBOUND_PCIS;
+ init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
+ init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
+
+ if (!(rc = qdio_initialize(&init_data)))
+ card->qdio.state = QETH_QDIO_ESTABLISHED;
+
+ kfree(out_sbal_ptrs);
+ kfree(in_sbal_ptrs);
+ kfree(qib_param_field);
+ return rc;
+}
+
+static int
+qeth_qdio_activate(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(setup,3,"qdioact");
+ return qdio_activate(CARD_DDEV(card), 0);
+}
+
+static int
+qeth_clear_channel(struct qeth_channel *channel)
+{
+ unsigned long flags;
+ struct qeth_card *card;
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"clearch");
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
+ rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
+ spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
+
+ if (rc)
+ return rc;
+ rc = wait_event_interruptible_timeout(card->wait_q,
+ channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
+ if (rc == -ERESTARTSYS)
+ return rc;
+ if (channel->state != CH_STATE_STOPPED)
+ return -ETIME;
+ channel->state = CH_STATE_DOWN;
+ return 0;
+}
+
+static int
+qeth_halt_channel(struct qeth_channel *channel)
+{
+ unsigned long flags;
+ struct qeth_card *card;
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"haltch");
+ card = CARD_FROM_CDEV(channel->ccwdev);
+ spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
+ rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
+ spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
+
+ if (rc)
+ return rc;
+ rc = wait_event_interruptible_timeout(card->wait_q,
+ channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
+ if (rc == -ERESTARTSYS)
+ return rc;
+ if (channel->state != CH_STATE_HALTED)
+ return -ETIME;
+ return 0;
+}
+
+static int
+qeth_halt_channels(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"haltchs");
+ if ((rc = qeth_halt_channel(&card->read)))
+ return rc;
+ if ((rc = qeth_halt_channel(&card->write)))
+ return rc;
+ return qeth_halt_channel(&card->data);
+}
+static int
+qeth_clear_channels(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"clearchs");
+ if ((rc = qeth_clear_channel(&card->read)))
+ return rc;
+ if ((rc = qeth_clear_channel(&card->write)))
+ return rc;
+ return qeth_clear_channel(&card->data);
+}
+
+static int
+qeth_clear_halt_card(struct qeth_card *card, int halt)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"clhacrd");
+ QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
+
+ if (halt)
+ rc = qeth_halt_channels(card);
+ if (rc)
+ return rc;
+ return qeth_clear_channels(card);
+}
+
+static int
+qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"qdioclr");
+ if (card->qdio.state == QETH_QDIO_ESTABLISHED){
+ if ((rc = qdio_cleanup(CARD_DDEV(card),
+ (card->info.type == QETH_CARD_TYPE_IQD) ?
+ QDIO_FLAG_CLEANUP_USING_HALT :
+ QDIO_FLAG_CLEANUP_USING_CLEAR)))
+ QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
+ card->qdio.state = QETH_QDIO_ALLOCATED;
+ }
+ if ((rc = qeth_clear_halt_card(card, use_halt)))
+ QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
+ card->state = CARD_STATE_DOWN;
+ return rc;
+}
+
+static int
+qeth_dm_act(struct qeth_card *card)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(setup,2,"dmact");
+
+ iob = qeth_wait_for_buffer(&card->write);
+ memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
+
+ memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
+ &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
+ memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
+ &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
+ rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
+ return rc;
+}
+
+static int
+qeth_mpc_initialize(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(setup,2,"mpcinit");
+
+ if ((rc = qeth_issue_next_read(card))){
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ return rc;
+ }
+ if ((rc = qeth_cm_enable(card))){
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ return rc;
+ }
+ if ((rc = qeth_cm_setup(card))){
+ QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
+ return rc;
+ }
+ if ((rc = qeth_ulp_enable(card))){
+ QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
+ return rc;
+ }
+ if ((rc = qeth_ulp_setup(card))){
+ QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
+ return rc;
+ }
+ if ((rc = qeth_alloc_qdio_buffers(card))){
+ QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
+ return rc;
+ }
+ if ((rc = qeth_qdio_establish(card))){
+ QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
+ qeth_free_qdio_buffers(card);
+ goto out_qdio;
+ }
+ if ((rc = qeth_qdio_activate(card))){
+ QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
+ goto out_qdio;
+ }
+ if ((rc = qeth_dm_act(card))){
+ QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
+ goto out_qdio;
+ }
+
+ return 0;
+out_qdio:
+ qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
+ return rc;
+}
+
+static struct net_device *
+qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
+{
+ struct net_device *dev = NULL;
+
+ switch (type) {
+ case QETH_CARD_TYPE_OSAE:
+ switch (linktype) {
+ case QETH_LINK_TYPE_LANE_TR:
+ case QETH_LINK_TYPE_HSTR:
+#ifdef CONFIG_TR
+ dev = alloc_trdev(0);
+#endif /* CONFIG_TR */
+ break;
+ default:
+ dev = alloc_etherdev(0);
+ }
+ break;
+ case QETH_CARD_TYPE_IQD:
+ dev = alloc_netdev(0, "hsi%d", ether_setup);
+ break;
+ default:
+ dev = alloc_etherdev(0);
+ }
+ return dev;
+}
+
+/*hard_header fake function; used in case fake_ll is set */
+static int
+qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, void *daddr, void *saddr,
+ unsigned len)
+{
+ struct ethhdr *hdr;
+
+ hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN);
+ memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
+ if (type != ETH_P_802_3)
+ hdr->h_proto = htons(type);
+ else
+ hdr->h_proto = htons(len);
+ return QETH_FAKE_LL_LEN;
+}
+
+static inline int
+qeth_send_packet(struct qeth_card *, struct sk_buff *);
+
+static int
+qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ int rc;
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace, 6, "hrdstxmi");
+ card = (struct qeth_card *)dev->priv;
+ if (skb==NULL) {
+ card->stats.tx_dropped++;
+ card->stats.tx_errors++;
+ /* return OK; otherwise ksoftirqd goes to 100% */
+ return NETDEV_TX_OK;
+ }
+ if ((card->state != CARD_STATE_UP) || !card->lan_online) {
+ card->stats.tx_dropped++;
+ card->stats.tx_errors++;
+ card->stats.tx_carrier_errors++;
+ dev_kfree_skb_any(skb);
+ /* return OK; otherwise ksoftirqd goes to 100% */
+ return NETDEV_TX_OK;
+ }
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.outbound_cnt++;
+ card->perf_stats.outbound_start_time = qeth_get_micros();
+#endif
+ netif_stop_queue(dev);
+ if ((rc = qeth_send_packet(card, skb))) {
+ if (rc == -EBUSY) {
+ return NETDEV_TX_BUSY;
+ } else {
+ card->stats.tx_errors++;
+ card->stats.tx_dropped++;
+ dev_kfree_skb_any(skb);
+ /*set to OK; otherwise ksoftirqd goes to 100% */
+ rc = NETDEV_TX_OK;
+ }
+ }
+ netif_wake_queue(dev);
+#ifdef CONFIG_QETH_PERF_STATS
+ card->perf_stats.outbound_time += qeth_get_micros() -
+ card->perf_stats.outbound_start_time;
+#endif
+ return rc;
+}
+
+static int
+qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
+{
+ int rc = 0;
+#ifdef CONFIG_QETH_VLAN
+ struct vlan_group *vg;
+ int i;
+
+ if (!(vg = card->vlangrp))
+ return rc;
+
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
+ if (vg->vlan_devices[i] == dev){
+ rc = QETH_VLAN_CARD;
+ break;
+ }
+ }
+#endif
+ return rc;
+}
+
+static int
+qeth_verify_dev(struct net_device *dev)
+{
+ struct qeth_card *card;
+ unsigned long flags;
+ int rc = 0;
+
+ read_lock_irqsave(&qeth_card_list.rwlock, flags);
+ list_for_each_entry(card, &qeth_card_list.list, list){
+ if (card->dev == dev){
+ rc = QETH_REAL_CARD;
+ break;
+ }
+ rc = qeth_verify_vlan_dev(dev, card);
+ if (rc)
+ break;
+ }
+ read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
+
+ return rc;
+}
+
+static struct qeth_card *
+qeth_get_card_from_dev(struct net_device *dev)
+{
+ struct qeth_card *card = NULL;
+ int rc;
+
+ rc = qeth_verify_dev(dev);
+ if (rc == QETH_REAL_CARD)
+ card = (struct qeth_card *)dev->priv;
+ else if (rc == QETH_VLAN_CARD)
+ card = (struct qeth_card *)
+ VLAN_DEV_INFO(dev)->real_dev->priv;
+
+ QETH_DBF_TEXT_(trace, 4, "%d", rc);
+ return card ;
+}
+
+static void
+qeth_tx_timeout(struct net_device *dev)
+{
+ struct qeth_card *card;
+
+ card = (struct qeth_card *) dev->priv;
+ card->stats.tx_errors++;
+ qeth_schedule_recovery(card);
+}
+
+static int
+qeth_open(struct net_device *dev)
+{
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace, 4, "qethopen");
+
+ card = (struct qeth_card *) dev->priv;
+
+ if (card->state != CARD_STATE_SOFTSETUP)
+ return -ENODEV;
+
+ if ( (card->options.layer2) &&
+ (!card->info.layer2_mac_registered)) {
+ QETH_DBF_TEXT(trace,4,"nomacadr");
+ return -EPERM;
+ }
+ card->dev->flags |= IFF_UP;
+ netif_start_queue(dev);
+ card->data.state = CH_STATE_UP;
+ card->state = CARD_STATE_UP;
+
+ if (!card->lan_online){
+ if (netif_carrier_ok(dev))
+ netif_carrier_off(dev);
+ }
+ return 0;
+}
+
+static int
+qeth_stop(struct net_device *dev)
+{
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace, 4, "qethstop");
+
+ card = (struct qeth_card *) dev->priv;
+
+ netif_stop_queue(dev);
+ card->dev->flags &= ~IFF_UP;
+ if (card->state == CARD_STATE_UP)
+ card->state = CARD_STATE_SOFTSETUP;
+ return 0;
+}
+
+static inline int
+qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
+{
+ int cast_type = RTN_UNSPEC;
+
+ if (skb->dst && skb->dst->neighbour){
+ cast_type = skb->dst->neighbour->type;
+ if ((cast_type == RTN_BROADCAST) ||
+ (cast_type == RTN_MULTICAST) ||
+ (cast_type == RTN_ANYCAST))
+ return cast_type;
+ else
+ return RTN_UNSPEC;
+ }
+ /* try something else */
+ if (skb->protocol == ETH_P_IPV6)
+ return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
+ else if (skb->protocol == ETH_P_IP)
+ return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
+ /* ... */
+ if (!memcmp(skb->data, skb->dev->broadcast, 6))
+ return RTN_BROADCAST;
+ else {
+ u16 hdr_mac;
+
+ hdr_mac = *((u16 *)skb->data);
+ /* tr multicast? */
+ switch (card->info.link_type) {
+ case QETH_LINK_TYPE_HSTR:
+ case QETH_LINK_TYPE_LANE_TR:
+ if ((hdr_mac == QETH_TR_MAC_NC) ||
+ (hdr_mac == QETH_TR_MAC_C))
+ return RTN_MULTICAST;
+ /* eth or so multicast? */
+ default:
+ if ((hdr_mac == QETH_ETH_MAC_V4) ||
+ (hdr_mac == QETH_ETH_MAC_V6))
+ return RTN_MULTICAST;
+ }
+ }
+ return cast_type;
+}
+
+static inline int
+qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
+ int ipv, int cast_type)
+{
+ if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
+ return card->qdio.default_out_queue;
+ switch (card->qdio.no_out_queues) {
+ case 4:
+ if (cast_type && card->info.is_multicast_different)
+ return card->info.is_multicast_different &
+ (card->qdio.no_out_queues - 1);
+ if (card->qdio.do_prio_queueing && (ipv == 4)) {
+ if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
+ if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
+ return 3;
+ if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
+ return 2;
+ if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
+ return 1;
+ if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
+ return 0;
+ }
+ if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
+ return 3 - (skb->nh.iph->tos >> 6);
+ } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
+ /* TODO: IPv6!!! */
+ }
+ return card->qdio.default_out_queue;
+ case 1: /* fallthrough for single-out-queue 1920-device */
+ default:
+ return card->qdio.default_out_queue;
+ }
+}
+
+static inline int
+qeth_get_ip_version(struct sk_buff *skb)
+{
+ switch (skb->protocol) {
+ case ETH_P_IPV6:
+ return 6;
+ case ETH_P_IP:
+ return 4;
+ default:
+ return 0;
+ }
+}
+
+static inline int
+qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
+ struct qeth_hdr **hdr, int ipv)
+{
+ int rc = 0;
+#ifdef CONFIG_QETH_VLAN
+ u16 *tag;
+#endif
+
+ QETH_DBF_TEXT(trace, 6, "prepskb");
+
+ rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
+ if (rc)
+ return rc;
+#ifdef CONFIG_QETH_VLAN
+ if (card->vlangrp && vlan_tx_tag_present(*skb) &&
+ ((ipv == 6) || card->options.layer2) ) {
+ /*
+ * Move the mac addresses (6 bytes src, 6 bytes dest)
+ * to the beginning of the new header. We are using three
+ * memcpys instead of one memmove to save cycles.
+ */
+ skb_push(*skb, VLAN_HLEN);
+ memcpy((*skb)->data, (*skb)->data + 4, 4);
+ memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
+ memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
+ tag = (u16 *)((*skb)->data + 12);
+ /*
+ * first two bytes = ETH_P_8021Q (0x8100)
+ * second two bytes = VLANID
+ */
+ *tag = __constant_htons(ETH_P_8021Q);
+ *(tag + 1) = htons(vlan_tx_tag_get(*skb));
+ }
+#endif
+ *hdr = (struct qeth_hdr *)
+ qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
+ if (hdr == NULL)
+ return -EINVAL;
+ return 0;
+}
+
+static inline u8
+qeth_get_qeth_hdr_flags4(int cast_type)
+{
+ if (cast_type == RTN_MULTICAST)
+ return QETH_CAST_MULTICAST;
+ if (cast_type == RTN_BROADCAST)
+ return QETH_CAST_BROADCAST;
+ return QETH_CAST_UNICAST;
+}
+
+static inline u8
+qeth_get_qeth_hdr_flags6(int cast_type)
+{
+ u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
+ if (cast_type == RTN_MULTICAST)
+ return ct | QETH_CAST_MULTICAST;
+ if (cast_type == RTN_ANYCAST)
+ return ct | QETH_CAST_ANYCAST;
+ if (cast_type == RTN_BROADCAST)
+ return ct | QETH_CAST_BROADCAST;
+ return ct | QETH_CAST_UNICAST;
+}
+
+static inline void
+qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
+ struct sk_buff *skb)
+{
+ __u16 hdr_mac;
+
+ if (!memcmp(skb->data+QETH_HEADER_SIZE,
+ skb->dev->broadcast,6)) { /* broadcast? */
+ *(__u32 *)hdr->hdr.l2.flags |=
+ QETH_LAYER2_FLAG_BROADCAST << 8;
+ return;
+ }
+ hdr_mac=*((__u16*)skb->data);
+ /* tr multicast? */
+ switch (card->info.link_type) {
+ case QETH_LINK_TYPE_HSTR:
+ case QETH_LINK_TYPE_LANE_TR:
+ if ((hdr_mac == QETH_TR_MAC_NC) ||
+ (hdr_mac == QETH_TR_MAC_C) )
+ *(__u32 *)hdr->hdr.l2.flags |=
+ QETH_LAYER2_FLAG_MULTICAST << 8;
+ else
+ *(__u32 *)hdr->hdr.l2.flags |=
+ QETH_LAYER2_FLAG_UNICAST << 8;
+ break;
+ /* eth or so multicast? */
+ default:
+ if ( (hdr_mac==QETH_ETH_MAC_V4) ||
+ (hdr_mac==QETH_ETH_MAC_V6) )
+ *(__u32 *)hdr->hdr.l2.flags |=
+ QETH_LAYER2_FLAG_MULTICAST << 8;
+ else
+ *(__u32 *)hdr->hdr.l2.flags |=
+ QETH_LAYER2_FLAG_UNICAST << 8;
+ }
+}
+
+static inline void
+qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
+ struct sk_buff *skb, int cast_type)
+{
+ memset(hdr, 0, sizeof(struct qeth_hdr));
+ hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
+
+ /* set byte 0 to "0x02" and byte 3 to casting flags */
+ if (cast_type==RTN_MULTICAST)
+ *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
+ else if (cast_type==RTN_BROADCAST)
+ *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
+ else
+ qeth_layer2_get_packet_type(card, hdr, skb);
+
+ hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
+#ifdef CONFIG_QETH_VLAN
+ /* VSWITCH relies on the VLAN
+ * information to be present in
+ * the QDIO header */
+ if ((card->vlangrp != NULL) &&
+ vlan_tx_tag_present(skb)) {
+ *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
+ hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
+ }
+#endif
+}
+
+void
+qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
+ struct sk_buff *skb, int ipv, int cast_type)
+{
+ QETH_DBF_TEXT(trace, 6, "fillhdr");
+
+ memset(hdr, 0, sizeof(struct qeth_hdr));
+ if (card->options.layer2) {
+ qeth_layer2_fill_header(card, hdr, skb, cast_type);
+ return;
+ }
+ hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
+ hdr->hdr.l3.ext_flags = 0;
+#ifdef CONFIG_QETH_VLAN
+ /*
+ * 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)) {
+ hdr->hdr.l3.ext_flags = (ipv == 4) ?
+ QETH_HDR_EXT_VLAN_FRAME :
+ QETH_HDR_EXT_INCLUDE_VLAN_TAG;
+ hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
+ }
+#endif /* CONFIG_QETH_VLAN */
+ hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
+ if (ipv == 4) { /* IPv4 */
+ hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
+ memset(hdr->hdr.l3.dest_addr, 0, 12);
+ if ((skb->dst) && (skb->dst->neighbour)) {
+ *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
+ *((u32 *) skb->dst->neighbour->primary_key);
+ } else {
+ /* fill in destination address used in ip header */
+ *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
+ }
+ } else if (ipv == 6) { /* IPv6 or passthru */
+ hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
+ if ((skb->dst) && (skb->dst->neighbour)) {
+ memcpy(hdr->hdr.l3.dest_addr,
+ skb->dst->neighbour->primary_key, 16);
+ } else {
+ /* fill in destination address used in ip header */
+ memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
+ }
+ } else { /* passthrough */
+ if (!memcmp(skb->data + sizeof(struct qeth_hdr),
+ skb->dev->broadcast, 6)) { /* broadcast? */
+ hdr->hdr.l3.flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
+ } else {
+ hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
+ QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
+ QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
+ }
+ }
+}
+
+static inline void
+__qeth_fill_buffer_frag(struct sk_buff *skb, struct qdio_buffer *buffer,
+ int *next_element_to_fill)
+{
+ int length = skb->len;
+ struct skb_frag_struct *frag;
+ int fragno;
+ unsigned long addr;
+ int element;
+ int first_lap = 1;
+
+ fragno = skb_shinfo(skb)->nr_frags; /* start with last frag */
+ element = *next_element_to_fill + fragno;
+ while (length > 0) {
+ if (fragno > 0) {
+ frag = &skb_shinfo(skb)->frags[fragno - 1];
+ addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
+ frag->page_offset;
+ buffer->element[element].addr = (char *)addr;
+ buffer->element[element].length = frag->size;
+ length -= frag->size;
+ if (first_lap)
+ buffer->element[element].flags =
+ SBAL_FLAGS_LAST_FRAG;
+ else
+ buffer->element[element].flags =
+ SBAL_FLAGS_MIDDLE_FRAG;
+ } else {
+ buffer->element[element].addr = skb->data;
+ buffer->element[element].length = length;
+ length = 0;
+ buffer->element[element].flags =
+ SBAL_FLAGS_FIRST_FRAG;
+ }
+ element--;
+ fragno--;
+ first_lap = 0;
+ }
+ *next_element_to_fill += skb_shinfo(skb)->nr_frags + 1;
+}
+
+static inline void
+__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
+ int *next_element_to_fill)
+{
+ int length = skb->len;
+ int length_here;
+ int element;
+ char *data;
+ int first_lap = 1;
+
+ element = *next_element_to_fill;
+ data = skb->data;
+ while (length > 0) {
+ /* length_here is the remaining amount of data in this page */
+ length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
+ if (length < length_here)
+ length_here = length;
+ buffer->element[element].addr = data;
+ buffer->element[element].length = length_here;
+ length -= length_here;
+ if (!length){
+ if (first_lap)
+ buffer->element[element].flags = 0;
+ else
+ buffer->element[element].flags =
+ SBAL_FLAGS_LAST_FRAG;
+ } else {
+ if (first_lap)
+ buffer->element[element].flags =
+ SBAL_FLAGS_FIRST_FRAG;
+ else
+ buffer->element[element].flags =
+ SBAL_FLAGS_MIDDLE_FRAG;
+ }
+ data += length_here;
+ element++;
+ first_lap = 0;
+ }
+ *next_element_to_fill = element;
+}
+
+static inline int
+qeth_fill_buffer(struct qeth_qdio_out_q *queue,
+ struct qeth_qdio_out_buffer *buf,
+ struct sk_buff *skb)
+{
+ struct qdio_buffer *buffer;
+ int flush_cnt = 0;
+
+ QETH_DBF_TEXT(trace, 6, "qdfillbf");
+ buffer = buf->buffer;
+ atomic_inc(&skb->users);
+ skb_queue_tail(&buf->skb_list, skb);
+ if (skb_shinfo(skb)->nr_frags == 0)
+ __qeth_fill_buffer(skb, buffer,
+ (int *)&buf->next_element_to_fill);
+ else
+ __qeth_fill_buffer_frag(skb, buffer,
+ (int *)&buf->next_element_to_fill);
+
+ if (!queue->do_pack) {
+ QETH_DBF_TEXT(trace, 6, "fillbfnp");
+ /* set state to PRIMED -> will be flushed */
+ atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
+ flush_cnt = 1;
+ } else {
+ QETH_DBF_TEXT(trace, 6, "fillbfpa");
+#ifdef CONFIG_QETH_PERF_STATS
+ queue->card->perf_stats.skbs_sent_pack++;
+#endif
+ if (buf->next_element_to_fill >=
+ QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
+ /*
+ * packed buffer if full -> set state PRIMED
+ * -> will be flushed
+ */
+ atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
+ flush_cnt = 1;
+ }
+ }
+ return flush_cnt;
+}
+
+static inline int
+qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
+ struct sk_buff *skb, struct qeth_hdr *hdr,
+ int elements_needed,
+ struct qeth_eddp_context *ctx)
+{
+ struct qeth_qdio_out_buffer *buffer;
+ int buffers_needed = 0;
+ int flush_cnt = 0;
+ int index;
+
+ QETH_DBF_TEXT(trace, 6, "dosndpfa");
+
+ /* spin until we get the queue ... */
+ while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
+ QETH_OUT_Q_LOCKED,
+ &queue->state));
+ /* ... now we've got the queue */
+ index = queue->next_buf_to_fill;
+ buffer = &queue->bufs[queue->next_buf_to_fill];
+ /*
+ * check if buffer is empty to make sure that we do not 'overtake'
+ * ourselves and try to fill a buffer that is already primed
+ */
+ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
+ card->stats.tx_dropped++;
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ return -EBUSY;
+ }
+ if (ctx == NULL)
+ queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ else {
+ buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
+ if (buffers_needed < 0) {
+ card->stats.tx_dropped++;
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ return -EBUSY;
+ }
+ queue->next_buf_to_fill =
+ (queue->next_buf_to_fill + buffers_needed) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ }
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ if (ctx == NULL) {
+ qeth_fill_buffer(queue, buffer, skb);
+ qeth_flush_buffers(queue, 0, index, 1);
+ } else {
+ flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
+ WARN_ON(buffers_needed != flush_cnt);
+ qeth_flush_buffers(queue, 0, index, flush_cnt);
+ }
+ return 0;
+}
+
+static inline int
+qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
+ struct sk_buff *skb, struct qeth_hdr *hdr,
+ int elements_needed, struct qeth_eddp_context *ctx)
+{
+ struct qeth_qdio_out_buffer *buffer;
+ int start_index;
+ int flush_count = 0;
+ int do_pack = 0;
+ int tmp;
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace, 6, "dosndpkt");
+
+ /* spin until we get the queue ... */
+ while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
+ QETH_OUT_Q_LOCKED,
+ &queue->state));
+ start_index = queue->next_buf_to_fill;
+ buffer = &queue->bufs[queue->next_buf_to_fill];
+ /*
+ * check if buffer is empty to make sure that we do not 'overtake'
+ * ourselves and try to fill a buffer that is already primed
+ */
+ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
+ card->stats.tx_dropped++;
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ return -EBUSY;
+ }
+ /* check if we need to switch packing state of this queue */
+ qeth_switch_to_packing_if_needed(queue);
+ if (queue->do_pack){
+ do_pack = 1;
+ if (ctx == NULL) {
+ /* does packet fit in current buffer? */
+ if((QETH_MAX_BUFFER_ELEMENTS(card) -
+ buffer->next_element_to_fill) < elements_needed){
+ /* ... no -> set state PRIMED */
+ atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
+ flush_count++;
+ queue->next_buf_to_fill =
+ (queue->next_buf_to_fill + 1) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ buffer = &queue->bufs[queue->next_buf_to_fill];
+ /* we did a step forward, so check buffer state
+ * again */
+ if (atomic_read(&buffer->state) !=
+ QETH_QDIO_BUF_EMPTY){
+ card->stats.tx_dropped++;
+ qeth_flush_buffers(queue, 0, start_index, flush_count);
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ return -EBUSY;
+ }
+ }
+ } else {
+ /* check if we have enough elements (including following
+ * free buffers) to handle eddp context */
+ if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
+ printk("eddp tx_dropped 1\n");
+ card->stats.tx_dropped++;
+ rc = -EBUSY;
+ goto out;
+ }
+ }
+ }
+ if (ctx == NULL)
+ tmp = qeth_fill_buffer(queue, buffer, skb);
+ else {
+ tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
+ if (tmp < 0) {
+ printk("eddp tx_dropped 2\n");
+ card->stats.tx_dropped++;
+ rc = - EBUSY;
+ goto out;
+ }
+ }
+ queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ flush_count += tmp;
+out:
+ if (flush_count)
+ qeth_flush_buffers(queue, 0, start_index, flush_count);
+ /*
+ * queue->state will go from LOCKED -> UNLOCKED or from
+ * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
+ * (switch packing state or flush buffer to get another pci flag out).
+ * In that case we will enter this loop
+ */
+ while (atomic_dec_return(&queue->state)){
+ flush_count = 0;
+ start_index = queue->next_buf_to_fill;
+ /* check if we can go back to non-packing state */
+ flush_count += qeth_switch_to_nonpacking_if_needed(queue);
+ /*
+ * check if we need to flush a packing buffer to get a pci
+ * flag out on the queue
+ */
+ if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
+ flush_count += qeth_flush_buffers_on_no_pci(queue);
+ if (flush_count)
+ qeth_flush_buffers(queue, 0, start_index, flush_count);
+ }
+ /* at this point the queue is UNLOCKED again */
+#ifdef CONFIG_QETH_PERF_STATS
+ if (do_pack)
+ queue->card->perf_stats.bufs_sent_pack += flush_count;
+#endif /* CONFIG_QETH_PERF_STATS */
+
+ return rc;
+}
+
+static inline int
+qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
+{
+ int ipv = 0;
+ int cast_type;
+ struct qeth_qdio_out_q *queue;
+ struct qeth_hdr *hdr;
+ int elements_needed = 0;
+ enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
+ struct qeth_eddp_context *ctx = NULL;
+ int rc;
+
+ QETH_DBF_TEXT(trace, 6, "sendpkt");
+
+ if (!card->options.layer2) {
+ ipv = qeth_get_ip_version(skb);
+ if ((card->dev->hard_header == qeth_fake_header) && ipv) {
+ if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
+ card->stats.tx_dropped++;
+ dev_kfree_skb_irq(skb);
+ return 0;
+ }
+ skb_pull(skb, QETH_FAKE_LL_LEN);
+ }
+ }
+ cast_type = qeth_get_cast_type(card, skb);
+ if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){
+ card->stats.tx_dropped++;
+ card->stats.tx_errors++;
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+ queue = card->qdio.out_qs
+ [qeth_get_priority_queue(card, skb, ipv, cast_type)];
+
+ if (skb_shinfo(skb)->tso_size)
+ large_send = card->options.large_send;
+
+ if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
+ QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
+ return rc;
+ }
+ /*are we able to do TSO ? If so ,prepare and send it from here */
+ if ((large_send == QETH_LARGE_SEND_TSO) &&
+ (cast_type == RTN_UNSPEC)) {
+ rc = qeth_tso_send_packet(card, skb, queue,
+ ipv, cast_type);
+ goto do_statistics;
+ }
+
+ qeth_fill_header(card, hdr, skb, ipv, cast_type);
+ if (large_send == QETH_LARGE_SEND_EDDP) {
+ ctx = qeth_eddp_create_context(card, skb, hdr);
+ if (ctx == NULL) {
+ PRINT_WARN("could not create eddp context\n");
+ return -EINVAL;
+ }
+ } else {
+ elements_needed = qeth_get_elements_no(card,(void*) hdr, skb);
+ if (!elements_needed)
+ return -EINVAL;
+ }
+
+ if (card->info.type != QETH_CARD_TYPE_IQD)
+ rc = qeth_do_send_packet(card, queue, skb, hdr,
+ elements_needed, ctx);
+ else
+ rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
+ elements_needed, ctx);
+do_statistics:
+ if (!rc){
+ card->stats.tx_packets++;
+ card->stats.tx_bytes += skb->len;
+#ifdef CONFIG_QETH_PERF_STATS
+ if (skb_shinfo(skb)->tso_size) {
+ card->perf_stats.large_send_bytes += skb->len;
+ card->perf_stats.large_send_cnt++;
+ }
+ if (skb_shinfo(skb)->nr_frags > 0){
+ card->perf_stats.sg_skbs_sent++;
+ /* nr_frags + skb->data */
+ card->perf_stats.sg_frags_sent +=
+ skb_shinfo(skb)->nr_frags + 1;
+ }
+#endif /* CONFIG_QETH_PERF_STATS */
+ }
+ if (ctx != NULL) {
+ /* drop creator's reference */
+ qeth_eddp_put_context(ctx);
+ /* free skb; it's not referenced by a buffer */
+ if (rc == 0)
+ dev_kfree_skb_any(skb);
+
+ }
+ return rc;
+}
+
+static int
+qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
+{
+ struct qeth_card *card = (struct qeth_card *) dev->priv;
+ int rc = 0;
+
+ switch(regnum){
+ case MII_BMCR: /* Basic mode control register */
+ rc = BMCR_FULLDPLX;
+ if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
+ (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
+ rc |= BMCR_SPEED100;
+ break;
+ case MII_BMSR: /* Basic mode status register */
+ rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
+ BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
+ BMSR_100BASE4;
+ break;
+ case MII_PHYSID1: /* PHYS ID 1 */
+ rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
+ dev->dev_addr[2];
+ rc = (rc >> 5) & 0xFFFF;
+ break;
+ case MII_PHYSID2: /* PHYS ID 2 */
+ rc = (dev->dev_addr[2] << 10) & 0xFFFF;
+ break;
+ case MII_ADVERTISE: /* Advertisement control reg */
+ rc = ADVERTISE_ALL;
+ break;
+ case MII_LPA: /* Link partner ability reg */
+ rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
+ LPA_100BASE4 | LPA_LPACK;
+ break;
+ case MII_EXPANSION: /* Expansion register */
+ break;
+ case MII_DCOUNTER: /* disconnect counter */
+ break;
+ case MII_FCSCOUNTER: /* false carrier counter */
+ break;
+ case MII_NWAYTEST: /* N-way auto-neg test register */
+ break;
+ case MII_RERRCOUNTER: /* rx error counter */
+ rc = card->stats.rx_errors;
+ break;
+ case MII_SREVISION: /* silicon revision */
+ break;
+ case MII_RESV1: /* reserved 1 */
+ break;
+ case MII_LBRERROR: /* loopback, rx, bypass error */
+ break;
+ case MII_PHYADDR: /* physical address */
+ break;
+ case MII_RESV2: /* reserved 2 */
+ break;
+ case MII_TPISTATUS: /* TPI status for 10mbps */
+ break;
+ case MII_NCONFIG: /* network interface config */
+ break;
+ default:
+ rc = 0;
+ break;
+ }
+ return rc;
+}
+
+static void
+qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
+{
+ switch(regnum){
+ case MII_BMCR: /* Basic mode control register */
+ case MII_BMSR: /* Basic mode status register */
+ case MII_PHYSID1: /* PHYS ID 1 */
+ case MII_PHYSID2: /* PHYS ID 2 */
+ case MII_ADVERTISE: /* Advertisement control reg */
+ case MII_LPA: /* Link partner ability reg */
+ case MII_EXPANSION: /* Expansion register */
+ case MII_DCOUNTER: /* disconnect counter */
+ case MII_FCSCOUNTER: /* false carrier counter */
+ case MII_NWAYTEST: /* N-way auto-neg test register */
+ case MII_RERRCOUNTER: /* rx error counter */
+ case MII_SREVISION: /* silicon revision */
+ case MII_RESV1: /* reserved 1 */
+ case MII_LBRERROR: /* loopback, rx, bypass error */
+ case MII_PHYADDR: /* physical address */
+ case MII_RESV2: /* reserved 2 */
+ case MII_TPISTATUS: /* TPI status for 10mbps */
+ case MII_NCONFIG: /* network interface config */
+ default:
+ break;
+ }
+}
+
+static inline const char *
+qeth_arp_get_error_cause(int *rc)
+{
+ switch (*rc) {
+ case QETH_IPA_ARP_RC_FAILED:
+ *rc = -EIO;
+ return "operation failed";
+ case QETH_IPA_ARP_RC_NOTSUPP:
+ *rc = -EOPNOTSUPP;
+ return "operation not supported";
+ case QETH_IPA_ARP_RC_OUT_OF_RANGE:
+ *rc = -EINVAL;
+ return "argument out of range";
+ case QETH_IPA_ARP_RC_Q_NOTSUPP:
+ *rc = -EOPNOTSUPP;
+ return "query operation not supported";
+ case QETH_IPA_ARP_RC_Q_NO_DATA:
+ *rc = -ENOENT;
+ return "no query data available";
+ default:
+ return "unknown error";
+ }
+}
+
+static int
+qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
+ __u16, long);
+
+static int
+qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
+{
+ int tmp;
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"arpstnoe");
+
+ /* TODO: really not supported by GuestLAN? */
+ if (card->info.guestlan)
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
+ PRINT_WARN("ARP processing not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+ rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
+ no_entries);
+ if (rc) {
+ tmp = rc;
+ PRINT_WARN("Could not set number of ARP entries on %s: "
+ "%s (0x%x/%d)\n",
+ QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
+ tmp, tmp);
+ }
+ return rc;
+}
+
+static inline void
+qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
+ struct qeth_arp_query_data *qdata,
+ int entry_size, int uentry_size)
+{
+ char *entry_ptr;
+ char *uentry_ptr;
+ int i;
+
+ entry_ptr = (char *)&qdata->data;
+ uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
+ for (i = 0; i < qdata->no_entries; ++i){
+ /* strip off 32 bytes "media specific information" */
+ memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
+ entry_ptr += entry_size;
+ uentry_ptr += uentry_size;
+ }
+}
+
+static int
+qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_arp_query_data *qdata;
+ struct qeth_arp_query_info *qinfo;
+ int entry_size;
+ int uentry_size;
+ int i;
+
+ QETH_DBF_TEXT(trace,4,"arpquecb");
+
+ qinfo = (struct qeth_arp_query_info *) reply->param;
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.return_code) {
+ QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
+ return 0;
+ }
+ if (cmd->data.setassparms.hdr.return_code) {
+ cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
+ QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
+ return 0;
+ }
+ qdata = &cmd->data.setassparms.data.query_arp;
+ switch(qdata->reply_bits){
+ case 5:
+ uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
+ if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
+ uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
+ break;
+ case 7:
+ /* fall through to default */
+ default:
+ /* tr is the same as eth -> entry7 */
+ uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
+ if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
+ uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
+ break;
+ }
+ /* check if there is enough room in userspace */
+ if ((qinfo->udata_len - qinfo->udata_offset) <
+ qdata->no_entries * uentry_size){
+ QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
+ cmd->hdr.return_code = -ENOMEM;
+ PRINT_WARN("query ARP user space buffer is too small for "
+ "the returned number of ARP entries. "
+ "Aborting query!\n");
+ goto out_error;
+ }
+ QETH_DBF_TEXT_(trace, 4, "anore%i",
+ cmd->data.setassparms.hdr.number_of_replies);
+ QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
+ QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
+
+ if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
+ /* strip off "media specific information" */
+ qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
+ uentry_size);
+ } else
+ /*copy entries to user buffer*/
+ memcpy(qinfo->udata + qinfo->udata_offset,
+ (char *)&qdata->data, qdata->no_entries*uentry_size);
+
+ qinfo->no_entries += qdata->no_entries;
+ qinfo->udata_offset += (qdata->no_entries*uentry_size);
+ /* check if all replies received ... */
+ if (cmd->data.setassparms.hdr.seq_no <
+ cmd->data.setassparms.hdr.number_of_replies)
+ return 1;
+ memcpy(qinfo->udata, &qinfo->no_entries, 4);
+ /* keep STRIP_ENTRIES flag so the user program can distinguish
+ * stripped entries from normal ones */
+ if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
+ qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
+ memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
+ return 0;
+out_error:
+ i = 0;
+ memcpy(qinfo->udata, &i, 4);
+ return 0;
+}
+
+static int
+qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
+ int len, int (*reply_cb)(struct qeth_card *,
+ struct qeth_reply *,
+ unsigned long),
+ void *reply_param)
+{
+ QETH_DBF_TEXT(trace,4,"sendarp");
+
+ memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
+ memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
+ &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
+ return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
+ reply_cb, reply_param);
+}
+
+static int
+qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
+ int len, int (*reply_cb)(struct qeth_card *,
+ struct qeth_reply *,
+ unsigned long),
+ void *reply_param)
+{
+ u16 s1, s2;
+
+ QETH_DBF_TEXT(trace,4,"sendsnmp");
+
+ memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
+ memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
+ &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
+ /* adjust PDU length fields in IPA_PDU_HEADER */
+ s1 = (u32) IPA_PDU_HEADER_SIZE + len;
+ s2 = (u32) len;
+ memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
+ memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
+ memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
+ memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
+ return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
+ reply_cb, reply_param);
+}
+
+static struct qeth_cmd_buffer *
+qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
+ __u16, __u16, enum qeth_prot_versions);
+static int
+qeth_arp_query(struct qeth_card *card, char *udata)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_arp_query_info qinfo = {0, };
+ int tmp;
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"arpquery");
+
+ /*
+ * currently GuestLAN does only deliver all zeros on query arp,
+ * even though arp processing is supported (according to IPA supp.
+ * funcs flags); since all zeros is no valueable information,
+ * we say EOPNOTSUPP for all ARP functions
+ */
+ /*if (card->info.guestlan)
+ return -EOPNOTSUPP; */
+ if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
+ IPA_ARP_PROCESSING)) {
+ PRINT_WARN("ARP processing not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+ /* get size of userspace buffer and mask_bits -> 6 bytes */
+ if (copy_from_user(&qinfo, udata, 6))
+ return -EFAULT;
+ if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
+ return -ENOMEM;
+ memset(qinfo.udata, 0, qinfo.udata_len);
+ qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_QUERY_INFO,
+ sizeof(int),QETH_PROT_IPV4);
+
+ rc = qeth_send_ipa_arp_cmd(card, iob,
+ QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
+ qeth_arp_query_cb, (void *)&qinfo);
+ if (rc) {
+ tmp = rc;
+ PRINT_WARN("Error while querying ARP cache on %s: %s "
+ "(0x%x/%d)\n",
+ QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
+ tmp, tmp);
+ copy_to_user(udata, qinfo.udata, 4);
+ } else {
+ copy_to_user(udata, qinfo.udata, qinfo.udata_len);
+ }
+ kfree(qinfo.udata);
+ return rc;
+}
+
+/**
+ * SNMP command callback
+ */
+static int
+qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long sdata)
+{
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_arp_query_info *qinfo;
+ struct qeth_snmp_cmd *snmp;
+ unsigned char *data;
+ __u16 data_len;
+
+ QETH_DBF_TEXT(trace,3,"snpcmdcb");
+
+ cmd = (struct qeth_ipa_cmd *) sdata;
+ data = (unsigned char *)((char *)cmd - reply->offset);
+ qinfo = (struct qeth_arp_query_info *) reply->param;
+ snmp = &cmd->data.setadapterparms.data.snmp;
+
+ if (cmd->hdr.return_code) {
+ QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
+ return 0;
+ }
+ if (cmd->data.setadapterparms.hdr.return_code) {
+ cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
+ QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
+ return 0;
+ }
+ data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
+ if (cmd->data.setadapterparms.hdr.seq_no == 1)
+ data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
+ else
+ data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
+
+ /* check if there is enough room in userspace */
+ if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
+ QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
+ cmd->hdr.return_code = -ENOMEM;
+ return 0;
+ }
+ QETH_DBF_TEXT_(trace, 4, "snore%i",
+ cmd->data.setadapterparms.hdr.used_total);
+ QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
+ /*copy entries to user buffer*/
+ if (cmd->data.setadapterparms.hdr.seq_no == 1) {
+ memcpy(qinfo->udata + qinfo->udata_offset,
+ (char *)snmp,
+ data_len + offsetof(struct qeth_snmp_cmd,data));
+ qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
+ } else {
+ memcpy(qinfo->udata + qinfo->udata_offset,
+ (char *)&snmp->request, data_len);
+ }
+ qinfo->udata_offset += data_len;
+ /* check if all replies received ... */
+ QETH_DBF_TEXT_(trace, 4, "srtot%i",
+ cmd->data.setadapterparms.hdr.used_total);
+ QETH_DBF_TEXT_(trace, 4, "srseq%i",
+ cmd->data.setadapterparms.hdr.seq_no);
+ if (cmd->data.setadapterparms.hdr.seq_no <
+ cmd->data.setadapterparms.hdr.used_total)
+ return 1;
+ return 0;
+}
+
+static struct qeth_cmd_buffer *
+qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
+ enum qeth_prot_versions );
+
+static struct qeth_cmd_buffer *
+qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
+ QETH_PROT_IPV4);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
+ cmd->data.setadapterparms.hdr.command_code = command;
+ cmd->data.setadapterparms.hdr.used_total = 1;
+ cmd->data.setadapterparms.hdr.seq_no = 1;
+
+ return iob;
+}
+
+/**
+ * function to send SNMP commands to OSA-E card
+ */
+static int
+qeth_snmp_command(struct qeth_card *card, char *udata)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_snmp_ureq *ureq;
+ int req_len;
+ struct qeth_arp_query_info qinfo = {0, };
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"snmpcmd");
+
+ if (card->info.guestlan)
+ return -EOPNOTSUPP;
+
+ if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
+ (!card->options.layer2) ) {
+ PRINT_WARN("SNMP Query MIBS not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+ /* skip 4 bytes (data_len struct member) to get req_len */
+ if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
+ return -EFAULT;
+ ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
+ if (!ureq) {
+ QETH_DBF_TEXT(trace, 2, "snmpnome");
+ return -ENOMEM;
+ }
+ if (copy_from_user(ureq, udata,
+ req_len+sizeof(struct qeth_snmp_ureq_hdr))){
+ kfree(ureq);
+ return -EFAULT;
+ }
+ qinfo.udata_len = ureq->hdr.data_len;
+ if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
+ kfree(ureq);
+ return -ENOMEM;
+ }
+ memset(qinfo.udata, 0, qinfo.udata_len);
+ qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
+
+ iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
+ QETH_SNMP_SETADP_CMDLENGTH + req_len);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
+ rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
+ qeth_snmp_command_cb, (void *)&qinfo);
+ if (rc)
+ PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
+ QETH_CARD_IFNAME(card), rc);
+ else
+ copy_to_user(udata, qinfo.udata, qinfo.udata_len);
+
+ kfree(ureq);
+ kfree(qinfo.udata);
+ return rc;
+}
+
+static int
+qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
+ unsigned long);
+
+static int
+qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
+ __u16, long,
+ int (*reply_cb)
+ (struct qeth_card *, struct qeth_reply *, unsigned long),
+ void *reply_param);
+
+static int
+qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
+{
+ struct qeth_cmd_buffer *iob;
+ char buf[16];
+ int tmp;
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"arpadent");
+
+ /*
+ * currently GuestLAN does only deliver all zeros on query arp,
+ * even though arp processing is supported (according to IPA supp.
+ * funcs flags); since all zeros is no valueable information,
+ * we say EOPNOTSUPP for all ARP functions
+ */
+ if (card->info.guestlan)
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
+ PRINT_WARN("ARP processing not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_ADD_ENTRY,
+ sizeof(struct qeth_arp_cache_entry),
+ QETH_PROT_IPV4);
+ rc = qeth_send_setassparms(card, iob,
+ sizeof(struct qeth_arp_cache_entry),
+ (unsigned long) entry,
+ qeth_default_setassparms_cb, NULL);
+ if (rc) {
+ tmp = rc;
+ qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
+ PRINT_WARN("Could not add ARP entry for address %s on %s: "
+ "%s (0x%x/%d)\n",
+ buf, QETH_CARD_IFNAME(card),
+ qeth_arp_get_error_cause(&rc), tmp, tmp);
+ }
+ return rc;
+}
+
+static int
+qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
+{
+ struct qeth_cmd_buffer *iob;
+ char buf[16] = {0, };
+ int tmp;
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"arprment");
+
+ /*
+ * currently GuestLAN does only deliver all zeros on query arp,
+ * even though arp processing is supported (according to IPA supp.
+ * funcs flags); since all zeros is no valueable information,
+ * we say EOPNOTSUPP for all ARP functions
+ */
+ if (card->info.guestlan)
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
+ PRINT_WARN("ARP processing not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+ memcpy(buf, entry, 12);
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_REMOVE_ENTRY,
+ 12,
+ QETH_PROT_IPV4);
+ rc = qeth_send_setassparms(card, iob,
+ 12, (unsigned long)buf,
+ qeth_default_setassparms_cb, NULL);
+ if (rc) {
+ tmp = rc;
+ memset(buf, 0, 16);
+ qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
+ PRINT_WARN("Could not delete ARP entry for address %s on %s: "
+ "%s (0x%x/%d)\n",
+ buf, QETH_CARD_IFNAME(card),
+ qeth_arp_get_error_cause(&rc), tmp, tmp);
+ }
+ return rc;
+}
+
+static int
+qeth_arp_flush_cache(struct qeth_card *card)
+{
+ int rc;
+ int tmp;
+
+ QETH_DBF_TEXT(trace,3,"arpflush");
+
+ /*
+ * currently GuestLAN does only deliver all zeros on query arp,
+ * even though arp processing is supported (according to IPA supp.
+ * funcs flags); since all zeros is no valueable information,
+ * we say EOPNOTSUPP for all ARP functions
+ */
+ if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
+ PRINT_WARN("ARP processing not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+ rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
+ if (rc){
+ tmp = rc;
+ PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
+ QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
+ tmp, tmp);
+ }
+ return rc;
+}
+
+static int
+qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+ struct qeth_arp_cache_entry arp_entry;
+ struct mii_ioctl_data *mii_data;
+ int rc = 0;
+
+ if (!card)
+ return -ENODEV;
+
+ if ((card->state != CARD_STATE_UP) &&
+ (card->state != CARD_STATE_SOFTSETUP))
+ return -ENODEV;
+
+ switch (cmd){
+ case SIOC_QETH_ARP_SET_NO_ENTRIES:
+ if ( !capable(CAP_NET_ADMIN) ||
+ (card->options.layer2) ) {
+ rc = -EPERM;
+ break;
+ }
+ rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
+ break;
+ case SIOC_QETH_ARP_QUERY_INFO:
+ if ( !capable(CAP_NET_ADMIN) ||
+ (card->options.layer2) ) {
+ rc = -EPERM;
+ break;
+ }
+ rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
+ break;
+ case SIOC_QETH_ARP_ADD_ENTRY:
+ if ( !capable(CAP_NET_ADMIN) ||
+ (card->options.layer2) ) {
+ rc = -EPERM;
+ break;
+ }
+ if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
+ sizeof(struct qeth_arp_cache_entry)))
+ rc = -EFAULT;
+ else
+ rc = qeth_arp_add_entry(card, &arp_entry);
+ break;
+ case SIOC_QETH_ARP_REMOVE_ENTRY:
+ if ( !capable(CAP_NET_ADMIN) ||
+ (card->options.layer2) ) {
+ rc = -EPERM;
+ break;
+ }
+ if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
+ sizeof(struct qeth_arp_cache_entry)))
+ rc = -EFAULT;
+ else
+ rc = qeth_arp_remove_entry(card, &arp_entry);
+ break;
+ case SIOC_QETH_ARP_FLUSH_CACHE:
+ if ( !capable(CAP_NET_ADMIN) ||
+ (card->options.layer2) ) {
+ rc = -EPERM;
+ break;
+ }
+ rc = qeth_arp_flush_cache(card);
+ break;
+ case SIOC_QETH_ADP_SET_SNMP_CONTROL:
+ rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
+ break;
+ case SIOC_QETH_GET_CARD_TYPE:
+ if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
+ !card->info.guestlan)
+ return 1;
+ return 0;
+ break;
+ case SIOCGMIIPHY:
+ mii_data = if_mii(rq);
+ mii_data->phy_id = 0;
+ break;
+ case SIOCGMIIREG:
+ mii_data = if_mii(rq);
+ if (mii_data->phy_id != 0)
+ rc = -EINVAL;
+ else
+ mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
+ mii_data->reg_num);
+ break;
+ case SIOCSMIIREG:
+ rc = -EOPNOTSUPP;
+ break;
+ /* TODO: remove return if qeth_mdio_write does something */
+ if (!capable(CAP_NET_ADMIN)){
+ rc = -EPERM;
+ break;
+ }
+ mii_data = if_mii(rq);
+ if (mii_data->phy_id != 0)
+ rc = -EINVAL;
+ else
+ qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
+ mii_data->val_in);
+ break;
+ default:
+ rc = -EOPNOTSUPP;
+ }
+ if (rc)
+ QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
+ return rc;
+}
+
+static struct net_device_stats *
+qeth_get_stats(struct net_device *dev)
+{
+ struct qeth_card *card;
+
+ card = (struct qeth_card *) (dev->priv);
+
+ QETH_DBF_TEXT(trace,5,"getstat");
+
+ return &card->stats;
+}
+
+static int
+qeth_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct qeth_card *card;
+ char dbf_text[15];
+
+ card = (struct qeth_card *) (dev->priv);
+
+ QETH_DBF_TEXT(trace,4,"chgmtu");
+ sprintf(dbf_text, "%8x", new_mtu);
+ QETH_DBF_TEXT(trace,4,dbf_text);
+
+ if (new_mtu < 64)
+ return -EINVAL;
+ if (new_mtu > 65535)
+ return -EINVAL;
+ if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
+ (!qeth_mtu_is_valid(card, new_mtu)))
+ return -EINVAL;
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+#ifdef CONFIG_QETH_VLAN
+static void
+qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
+{
+ struct qeth_card *card;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace,4,"vlanreg");
+
+ card = (struct qeth_card *) dev->priv;
+ spin_lock_irqsave(&card->vlanlock, flags);
+ card->vlangrp = grp;
+ spin_unlock_irqrestore(&card->vlanlock, flags);
+}
+
+static inline void
+qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
+ unsigned short vid)
+{
+ int i;
+ struct sk_buff *skb;
+ struct sk_buff_head tmp_list;
+
+ skb_queue_head_init(&tmp_list);
+ for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
+ while ((skb = skb_dequeue(&buf->skb_list))){
+ if (vlan_tx_tag_present(skb) &&
+ (vlan_tx_tag_get(skb) == vid)) {
+ atomic_dec(&skb->users);
+ dev_kfree_skb(skb);
+ } else
+ skb_queue_tail(&tmp_list, skb);
+ }
+ }
+ while ((skb = skb_dequeue(&tmp_list)))
+ skb_queue_tail(&buf->skb_list, skb);
+}
+
+static void
+qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
+{
+ int i, j;
+
+ QETH_DBF_TEXT(trace, 4, "frvlskbs");
+ for (i = 0; i < card->qdio.no_out_queues; ++i){
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
+ qeth_free_vlan_buffer(card, &card->qdio.
+ out_qs[i]->bufs[j], vid);
+ }
+}
+
+static void
+qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
+{
+ struct in_device *in_dev;
+ struct in_ifaddr *ifa;
+ struct qeth_ipaddr *addr;
+
+ QETH_DBF_TEXT(trace, 4, "frvaddr4");
+ if (!card->vlangrp)
+ return;
+ rcu_read_lock();
+ in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
+ if (!in_dev)
+ goto out;
+ for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
+ addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
+ if (addr){
+ addr->u.a4.addr = ifa->ifa_address;
+ addr->u.a4.mask = ifa->ifa_mask;
+ addr->type = QETH_IP_TYPE_NORMAL;
+ if (!qeth_delete_ip(card, addr))
+ kfree(addr);
+ }
+ }
+out:
+ rcu_read_unlock();
+}
+
+static void
+qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
+{
+#ifdef CONFIG_QETH_IPV6
+ struct inet6_dev *in6_dev;
+ struct inet6_ifaddr *ifa;
+ struct qeth_ipaddr *addr;
+
+ QETH_DBF_TEXT(trace, 4, "frvaddr6");
+ if (!card->vlangrp)
+ return;
+ in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
+ if (!in6_dev)
+ return;
+ for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
+ addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
+ if (addr){
+ memcpy(&addr->u.a6.addr, &ifa->addr,
+ sizeof(struct in6_addr));
+ addr->u.a6.pfxlen = ifa->prefix_len;
+ addr->type = QETH_IP_TYPE_NORMAL;
+ if (!qeth_delete_ip(card, addr))
+ kfree(addr);
+ }
+ }
+ in6_dev_put(in6_dev);
+#endif /* CONFIG_QETH_IPV6 */
+}
+
+static void
+qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
+ enum qeth_ipa_cmds ipacmd)
+{
+ int rc;
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
+ iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ cmd->data.setdelvlan.vlan_id = i;
+
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+ if (rc) {
+ PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
+ "Continuing\n",i, QETH_CARD_IFNAME(card), rc);
+ QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd);
+ QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
+ QETH_DBF_TEXT_(trace, 2, "err%d", rc);
+ }
+}
+
+static void
+qeth_layer2_process_vlans(struct qeth_card *card, int clear)
+{
+ unsigned short i;
+
+ QETH_DBF_TEXT(trace, 3, "L2prcvln");
+
+ if (!card->vlangrp)
+ return;
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ if (card->vlangrp->vlan_devices[i] == NULL)
+ continue;
+ if (clear)
+ qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
+ else
+ qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
+ }
+}
+
+/*add_vid is layer 2 used only ....*/
+static void
+qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
+{
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
+
+ card = (struct qeth_card *) dev->priv;
+ if (!card->options.layer2)
+ return;
+ qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
+}
+
+/*... kill_vid used for both modes*/
+static void
+qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
+{
+ struct qeth_card *card;
+ unsigned long flags;
+
+ QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
+
+ card = (struct qeth_card *) dev->priv;
+ /* free all skbs for the vlan device */
+ qeth_free_vlan_skbs(card, vid);
+ spin_lock_irqsave(&card->vlanlock, flags);
+ /* unregister IP addresses of vlan device */
+ qeth_free_vlan_addresses4(card, vid);
+ qeth_free_vlan_addresses6(card, vid);
+ if (card->vlangrp)
+ card->vlangrp->vlan_devices[vid] = NULL;
+ spin_unlock_irqrestore(&card->vlanlock, flags);
+ if (card->options.layer2)
+ qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
+ qeth_set_multicast_list(card->dev);
+}
+#endif
+
+/**
+ * set multicast address on card
+ */
+static void
+qeth_set_multicast_list(struct net_device *dev)
+{
+ struct qeth_card *card = (struct qeth_card *) dev->priv;
+
+ QETH_DBF_TEXT(trace,3,"setmulti");
+ qeth_delete_mc_addresses(card);
+ qeth_add_multicast_ipv4(card);
+#ifdef CONFIG_QETH_IPV6
+ qeth_add_multicast_ipv6(card);
+#endif
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+}
+
+static int
+qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
+{
+ return 0;
+}
+
+static void
+qeth_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);
+}
+
+static struct qeth_ipaddr *
+qeth_get_addr_buffer(enum qeth_prot_versions prot)
+{
+ struct qeth_ipaddr *addr;
+
+ addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
+ if (addr == NULL) {
+ PRINT_WARN("Not enough memory to add address\n");
+ return NULL;
+ }
+ memset(addr,0,sizeof(struct qeth_ipaddr));
+ addr->type = QETH_IP_TYPE_NORMAL;
+ addr->proto = prot;
+ return addr;
+}
+
+static void
+qeth_delete_mc_addresses(struct qeth_card *card)
+{
+ struct qeth_ipaddr *iptodo;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace,4,"delmc");
+ iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
+ if (!iptodo) {
+ QETH_DBF_TEXT(trace, 2, "dmcnomem");
+ return;
+ }
+ iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
+ spin_lock_irqsave(&card->ip_lock, flags);
+ if (!__qeth_insert_ip_todo(card, iptodo, 0))
+ kfree(iptodo);
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+static inline void
+qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
+{
+ struct qeth_ipaddr *ipm;
+ struct ip_mc_list *im4;
+ char buf[MAX_ADDR_LEN];
+
+ QETH_DBF_TEXT(trace,4,"addmc");
+ for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
+ qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
+ ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
+ if (!ipm)
+ continue;
+ ipm->u.a4.addr = im4->multiaddr;
+ memcpy(ipm->mac,buf,OSA_ADDR_LEN);
+ ipm->is_multicast = 1;
+ if (!qeth_add_ip(card,ipm))
+ kfree(ipm);
+ }
+}
+
+static inline void
+qeth_add_vlan_mc(struct qeth_card *card)
+{
+#ifdef CONFIG_QETH_VLAN
+ struct in_device *in_dev;
+ struct vlan_group *vg;
+ int i;
+
+ QETH_DBF_TEXT(trace,4,"addmcvl");
+ if ( ((card->options.layer2 == 0) &&
+ (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
+ (card->vlangrp == NULL) )
+ return ;
+
+ vg = card->vlangrp;
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ if (vg->vlan_devices[i] == NULL ||
+ !(vg->vlan_devices[i]->flags & IFF_UP))
+ continue;
+ in_dev = in_dev_get(vg->vlan_devices[i]);
+ if (!in_dev)
+ continue;
+ read_lock(&in_dev->mc_list_lock);
+ qeth_add_mc(card,in_dev);
+ read_unlock(&in_dev->mc_list_lock);
+ in_dev_put(in_dev);
+ }
+#endif
+}
+
+static void
+qeth_add_multicast_ipv4(struct qeth_card *card)
+{
+ struct in_device *in4_dev;
+
+ QETH_DBF_TEXT(trace,4,"chkmcv4");
+ in4_dev = in_dev_get(card->dev);
+ if (in4_dev == NULL)
+ return;
+ read_lock(&in4_dev->mc_list_lock);
+ qeth_add_mc(card, in4_dev);
+ qeth_add_vlan_mc(card);
+ read_unlock(&in4_dev->mc_list_lock);
+ in_dev_put(in4_dev);
+}
+
+#ifdef CONFIG_QETH_IPV6
+static inline void
+qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
+{
+ struct qeth_ipaddr *ipm;
+ struct ifmcaddr6 *im6;
+ char buf[MAX_ADDR_LEN];
+
+ QETH_DBF_TEXT(trace,4,"addmc6");
+ for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
+ ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
+ ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
+ if (!ipm)
+ continue;
+ ipm->is_multicast = 1;
+ memcpy(ipm->mac,buf,OSA_ADDR_LEN);
+ memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
+ sizeof(struct in6_addr));
+ if (!qeth_add_ip(card,ipm))
+ kfree(ipm);
+ }
+}
+
+static inline void
+qeth_add_vlan_mc6(struct qeth_card *card)
+{
+#ifdef CONFIG_QETH_VLAN
+ struct inet6_dev *in_dev;
+ struct vlan_group *vg;
+ int i;
+
+ QETH_DBF_TEXT(trace,4,"admc6vl");
+ if ( ((card->options.layer2 == 0) &&
+ (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
+ (card->vlangrp == NULL))
+ return ;
+
+ vg = card->vlangrp;
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ if (vg->vlan_devices[i] == NULL ||
+ !(vg->vlan_devices[i]->flags & IFF_UP))
+ continue;
+ in_dev = in6_dev_get(vg->vlan_devices[i]);
+ if (!in_dev)
+ continue;
+ read_lock(&in_dev->lock);
+ qeth_add_mc6(card,in_dev);
+ read_unlock(&in_dev->lock);
+ in6_dev_put(in_dev);
+ }
+#endif /* CONFIG_QETH_VLAN */
+}
+
+static void
+qeth_add_multicast_ipv6(struct qeth_card *card)
+{
+ struct inet6_dev *in6_dev;
+
+ QETH_DBF_TEXT(trace,4,"chkmcv6");
+ if ((card->options.layer2 == 0) &&
+ (!qeth_is_supported(card, IPA_IPV6)) )
+ return ;
+
+ in6_dev = in6_dev_get(card->dev);
+ if (in6_dev == NULL)
+ return;
+ read_lock(&in6_dev->lock);
+ qeth_add_mc6(card, in6_dev);
+ qeth_add_vlan_mc6(card);
+ read_unlock(&in6_dev->lock);
+ in6_dev_put(in6_dev);
+}
+#endif /* CONFIG_QETH_IPV6 */
+
+static int
+qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
+ enum qeth_ipa_cmds ipacmd,
+ int (*reply_cb) (struct qeth_card *,
+ struct qeth_reply*,
+ unsigned long))
+{
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(trace, 2, "L2sdmac");
+ iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
+ memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
+ return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
+}
+
+static int
+qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+ __u8 *mac;
+
+ QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
+ cmd = (struct qeth_ipa_cmd *) data;
+ mac = &cmd->data.setdelmac.mac[0];
+ /* MAC already registered, needed in couple/uncouple case */
+ if (cmd->hdr.return_code == 0x2005) {
+ PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
+ "already existing on %s \n",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
+ QETH_CARD_IFNAME(card));
+ cmd->hdr.return_code = 0;
+ }
+ if (cmd->hdr.return_code)
+ PRINT_ERR("Could not set group MAC " \
+ "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
+ QETH_CARD_IFNAME(card),cmd->hdr.return_code);
+ return 0;
+}
+
+static int
+qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
+{
+ QETH_DBF_TEXT(trace, 2, "L2Sgmac");
+ return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
+ qeth_layer2_send_setgroupmac_cb);
+}
+
+static int
+qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+ __u8 *mac;
+
+ QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
+ cmd = (struct qeth_ipa_cmd *) data;
+ mac = &cmd->data.setdelmac.mac[0];
+ if (cmd->hdr.return_code)
+ PRINT_ERR("Could not delete group MAC " \
+ "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
+ QETH_CARD_IFNAME(card), cmd->hdr.return_code);
+ return 0;
+}
+
+static int
+qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
+{
+ QETH_DBF_TEXT(trace, 2, "L2Dgmac");
+ return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
+ qeth_layer2_send_delgroupmac_cb);
+}
+
+static int
+qeth_layer2_send_setmac_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace, 2, "L2Smaccb");
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.return_code) {
+ QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
+ PRINT_WARN("Error in registering MAC address on " \
+ "device %s: x%x\n", CARD_BUS_ID(card),
+ cmd->hdr.return_code);
+ card->info.layer2_mac_registered = 0;
+ cmd->hdr.return_code = -EIO;
+ } else {
+ card->info.layer2_mac_registered = 1;
+ memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
+ OSA_ADDR_LEN);
+ PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
+ "successfully registered on device %s\n",
+ card->dev->dev_addr[0], card->dev->dev_addr[1],
+ card->dev->dev_addr[2], card->dev->dev_addr[3],
+ card->dev->dev_addr[4], card->dev->dev_addr[5],
+ card->dev->name);
+ }
+ return 0;
+}
+
+static int
+qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
+{
+ QETH_DBF_TEXT(trace, 2, "L2Setmac");
+ return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
+ qeth_layer2_send_setmac_cb);
+}
+
+static int
+qeth_layer2_send_delmac_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.return_code) {
+ PRINT_WARN("Error in deregistering MAC address on " \
+ "device %s: x%x\n", CARD_BUS_ID(card),
+ cmd->hdr.return_code);
+ QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
+ cmd->hdr.return_code = -EIO;
+ return 0;
+ }
+ card->info.layer2_mac_registered = 0;
+
+ return 0;
+}
+static int
+qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
+{
+ QETH_DBF_TEXT(trace, 2, "L2Delmac");
+ if (!card->info.layer2_mac_registered)
+ return 0;
+ return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
+ qeth_layer2_send_delmac_cb);
+}
+
+static int
+qeth_layer2_set_mac_address(struct net_device *dev, void *p)
+{
+ struct sockaddr *addr = p;
+ struct qeth_card *card;
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace, 3, "setmac");
+
+ if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
+ QETH_DBF_TEXT(trace, 3, "setmcINV");
+ return -EOPNOTSUPP;
+ }
+ card = (struct qeth_card *) dev->priv;
+
+ if (!card->options.layer2) {
+ PRINT_WARN("Setting MAC address on %s is not supported"
+ "in Layer 3 mode.\n", dev->name);
+ QETH_DBF_TEXT(trace, 3, "setmcLY3");
+ return -EOPNOTSUPP;
+ }
+ QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
+ QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
+ rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
+ if (!rc)
+ rc = qeth_layer2_send_setmac(card, addr->sa_data);
+ return rc;
+}
+
+static void
+qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
+ __u8 command, enum qeth_prot_versions prot)
+{
+ memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
+ cmd->hdr.command = command;
+ cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
+ cmd->hdr.seqno = card->seqno.ipa;
+ cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
+ cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
+ if (card->options.layer2)
+ cmd->hdr.prim_version_no = 2;
+ else
+ cmd->hdr.prim_version_no = 1;
+ cmd->hdr.param_count = 1;
+ cmd->hdr.prot_version = prot;
+ cmd->hdr.ipa_supported = 0;
+ cmd->hdr.ipa_enabled = 0;
+}
+
+static struct qeth_cmd_buffer *
+qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
+ enum qeth_prot_versions prot)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ iob = qeth_wait_for_buffer(&card->write);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
+
+ return iob;
+}
+
+static int
+qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"setdelmc");
+
+ iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
+ if (addr->proto == QETH_PROT_IPV6)
+ memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
+ sizeof(struct in6_addr));
+ else
+ memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
+
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+ return rc;
+}
+static inline void
+qeth_fill_netmask(u8 *netmask, unsigned int len)
+{
+ int i,j;
+ for (i=0;i<16;i++) {
+ j=(len)-(i*8);
+ if (j >= 8)
+ netmask[i] = 0xff;
+ else if (j > 0)
+ netmask[i] = (u8)(0xFF00>>j);
+ else
+ netmask[i] = 0;
+ }
+}
+
+static int
+qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
+ int ipacmd, unsigned int flags)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+ __u8 netmask[16];
+
+ QETH_DBF_TEXT(trace,4,"setdelip");
+ QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
+
+ iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ if (addr->proto == QETH_PROT_IPV6) {
+ memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
+ sizeof(struct in6_addr));
+ qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
+ memcpy(cmd->data.setdelip6.mask, netmask,
+ sizeof(struct in6_addr));
+ cmd->data.setdelip6.flags = flags;
+ } else {
+ memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
+ memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
+ cmd->data.setdelip4.flags = flags;
+ }
+
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+ return rc;
+}
+
+static int
+qeth_layer2_register_addr_entry(struct qeth_card *card,
+ struct qeth_ipaddr *addr)
+{
+ if (!addr->is_multicast)
+ return 0;
+ QETH_DBF_TEXT(trace, 2, "setgmac");
+ QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
+ return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
+}
+
+static int
+qeth_layer2_deregister_addr_entry(struct qeth_card *card,
+ struct qeth_ipaddr *addr)
+{
+ if (!addr->is_multicast)
+ return 0;
+ QETH_DBF_TEXT(trace, 2, "delgmac");
+ QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
+ return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
+}
+
+static int
+qeth_layer3_register_addr_entry(struct qeth_card *card,
+ struct qeth_ipaddr *addr)
+{
+ char buf[50];
+ int rc;
+ int cnt = 3;
+
+ if (addr->proto == QETH_PROT_IPV4) {
+ QETH_DBF_TEXT(trace, 2,"setaddr4");
+ QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
+ } else if (addr->proto == QETH_PROT_IPV6) {
+ QETH_DBF_TEXT(trace, 2, "setaddr6");
+ QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
+ QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
+ } else {
+ QETH_DBF_TEXT(trace, 2, "setaddr?");
+ QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
+ }
+ do {
+ if (addr->is_multicast)
+ rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
+ else
+ rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
+ addr->set_flags);
+ if (rc)
+ QETH_DBF_TEXT(trace, 2, "failed");
+ } while ((--cnt > 0) && rc);
+ if (rc){
+ QETH_DBF_TEXT(trace, 2, "FAILED");
+ qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
+ PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
+ buf, rc, rc);
+ }
+ return rc;
+}
+
+static int
+qeth_layer3_deregister_addr_entry(struct qeth_card *card,
+ struct qeth_ipaddr *addr)
+{
+ //char buf[50];
+ int rc;
+
+ if (addr->proto == QETH_PROT_IPV4) {
+ QETH_DBF_TEXT(trace, 2,"deladdr4");
+ QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
+ } else if (addr->proto == QETH_PROT_IPV6) {
+ QETH_DBF_TEXT(trace, 2, "deladdr6");
+ QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
+ QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
+ } else {
+ QETH_DBF_TEXT(trace, 2, "deladdr?");
+ QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
+ }
+ if (addr->is_multicast)
+ rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
+ else
+ rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
+ addr->del_flags);
+ if (rc) {
+ QETH_DBF_TEXT(trace, 2, "failed");
+ /* TODO: re-activate this warning as soon as we have a
+ * clean mirco code
+ qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
+ PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
+ buf, rc);
+ */
+ }
+ return rc;
+}
+
+static int
+qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+ if (card->options.layer2)
+ return qeth_layer2_register_addr_entry(card, addr);
+
+ return qeth_layer3_register_addr_entry(card, addr);
+}
+
+static int
+qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+ if (card->options.layer2)
+ return qeth_layer2_deregister_addr_entry(card, addr);
+
+ return qeth_layer3_deregister_addr_entry(card, addr);
+}
+
+static u32
+qeth_ethtool_get_tx_csum(struct net_device *dev)
+{
+ /* We may need to say that we support tx csum offload if
+ * we do EDDP or TSO. There are discussions going on to
+ * enforce rules in the stack and in ethtool that make
+ * SG and TSO depend on HW_CSUM. At the moment there are
+ * no such rules....
+ * If we say yes here, we have to checksum outbound packets
+ * any time. */
+ return 0;
+}
+
+static int
+qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
+{
+ return -EINVAL;
+}
+
+static u32
+qeth_ethtool_get_rx_csum(struct net_device *dev)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+
+ return (card->options.checksum_type == HW_CHECKSUMMING);
+}
+
+static int
+qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+
+ if ((card->state != CARD_STATE_DOWN) &&
+ (card->state != CARD_STATE_RECOVER))
+ return -EPERM;
+ if (data)
+ card->options.checksum_type = HW_CHECKSUMMING;
+ else
+ card->options.checksum_type = SW_CHECKSUMMING;
+ return 0;
+}
+
+static u32
+qeth_ethtool_get_sg(struct net_device *dev)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+
+ return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
+ (dev->features & NETIF_F_SG));
+}
+
+static int
+qeth_ethtool_set_sg(struct net_device *dev, u32 data)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+
+ if (data) {
+ if (card->options.large_send != QETH_LARGE_SEND_NO)
+ dev->features |= NETIF_F_SG;
+ else {
+ dev->features &= ~NETIF_F_SG;
+ return -EINVAL;
+ }
+ } else
+ dev->features &= ~NETIF_F_SG;
+ return 0;
+}
+
+static u32
+qeth_ethtool_get_tso(struct net_device *dev)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+
+ return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
+ (dev->features & NETIF_F_TSO));
+}
+
+static int
+qeth_ethtool_set_tso(struct net_device *dev, u32 data)
+{
+ struct qeth_card *card = (struct qeth_card *)dev->priv;
+
+ if (data) {
+ if (card->options.large_send != QETH_LARGE_SEND_NO)
+ dev->features |= NETIF_F_TSO;
+ else {
+ dev->features &= ~NETIF_F_TSO;
+ return -EINVAL;
+ }
+ } else
+ dev->features &= ~NETIF_F_TSO;
+ return 0;
+}
+
+static struct ethtool_ops qeth_ethtool_ops = {
+ .get_tx_csum = qeth_ethtool_get_tx_csum,
+ .set_tx_csum = qeth_ethtool_set_tx_csum,
+ .get_rx_csum = qeth_ethtool_get_rx_csum,
+ .set_rx_csum = qeth_ethtool_set_rx_csum,
+ .get_sg = qeth_ethtool_get_sg,
+ .set_sg = qeth_ethtool_set_sg,
+ .get_tso = qeth_ethtool_get_tso,
+ .set_tso = qeth_ethtool_set_tso,
+};
+
+static int
+qeth_netdev_init(struct net_device *dev)
+{
+ struct qeth_card *card;
+
+ card = (struct qeth_card *) dev->priv;
+
+ QETH_DBF_TEXT(trace,3,"initdev");
+
+ dev->tx_timeout = &qeth_tx_timeout;
+ dev->watchdog_timeo = QETH_TX_TIMEOUT;
+ dev->open = qeth_open;
+ dev->stop = qeth_stop;
+ dev->hard_start_xmit = qeth_hard_start_xmit;
+ dev->do_ioctl = qeth_do_ioctl;
+ dev->get_stats = qeth_get_stats;
+ dev->change_mtu = qeth_change_mtu;
+ dev->neigh_setup = qeth_neigh_setup;
+ dev->set_multicast_list = qeth_set_multicast_list;
+#ifdef CONFIG_QETH_VLAN
+ dev->vlan_rx_register = qeth_vlan_rx_register;
+ dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
+ dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
+#endif
+ dev->hard_header = card->orig_hard_header;
+ if (qeth_get_netdev_flags(card) & IFF_NOARP) {
+ dev->rebuild_header = NULL;
+ dev->hard_header = NULL;
+ if (card->options.fake_ll)
+ dev->hard_header = qeth_fake_header;
+ dev->header_cache_update = NULL;
+ dev->hard_header_cache = NULL;
+ }
+#ifdef CONFIG_QETH_IPV6
+ /*IPv6 address autoconfiguration stuff*/
+ if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
+ card->dev->dev_id = card->info.unique_id & 0xffff;
+#endif
+ dev->hard_header_parse = NULL;
+ dev->set_mac_address = qeth_layer2_set_mac_address;
+ dev->flags |= qeth_get_netdev_flags(card);
+ if ((card->options.fake_broadcast) ||
+ (card->info.broadcast_capable))
+ dev->flags |= IFF_BROADCAST;
+ dev->hard_header_len =
+ qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
+ dev->addr_len = OSA_ADDR_LEN;
+ dev->mtu = card->info.initial_mtu;
+
+ SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
+
+ SET_MODULE_OWNER(dev);
+ return 0;
+}
+
+static void
+qeth_init_func_level(struct qeth_card *card)
+{
+ if (card->ipato.enabled) {
+ if (card->info.type == QETH_CARD_TYPE_IQD)
+ card->info.func_level =
+ QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
+ else
+ card->info.func_level =
+ QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
+ } else {
+ if (card->info.type == QETH_CARD_TYPE_IQD)
+ card->info.func_level =
+ QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
+ else
+ card->info.func_level =
+ QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
+ }
+}
+
+/**
+ * hardsetup card, initialize MPC and QDIO stuff
+ */
+static int
+qeth_hardsetup_card(struct qeth_card *card)
+{
+ int retries = 3;
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "hrdsetup");
+
+retry:
+ if (retries < 3){
+ PRINT_WARN("Retrying to do IDX activates.\n");
+ ccw_device_set_offline(CARD_DDEV(card));
+ ccw_device_set_offline(CARD_WDEV(card));
+ ccw_device_set_offline(CARD_RDEV(card));
+ ccw_device_set_online(CARD_RDEV(card));
+ ccw_device_set_online(CARD_WDEV(card));
+ ccw_device_set_online(CARD_DDEV(card));
+ }
+ rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
+ if (rc == -ERESTARTSYS) {
+ QETH_DBF_TEXT(setup, 2, "break1");
+ return rc;
+ } else if (rc) {
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ if (--retries < 0)
+ goto out;
+ else
+ goto retry;
+ }
+ if ((rc = qeth_get_unitaddr(card))){
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ return rc;
+ }
+ qeth_init_tokens(card);
+ qeth_init_func_level(card);
+ rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
+ if (rc == -ERESTARTSYS) {
+ QETH_DBF_TEXT(setup, 2, "break2");
+ return rc;
+ } else if (rc) {
+ QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
+ if (--retries < 0)
+ goto out;
+ else
+ goto retry;
+ }
+ rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
+ if (rc == -ERESTARTSYS) {
+ QETH_DBF_TEXT(setup, 2, "break3");
+ return rc;
+ } else if (rc) {
+ QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
+ if (--retries < 0)
+ goto out;
+ else
+ goto retry;
+ }
+ if ((rc = qeth_mpc_initialize(card))){
+ QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
+ goto out;
+ }
+ /*network device will be recovered*/
+ if (card->dev) {
+ card->dev->hard_header = card->orig_hard_header;
+ return 0;
+ }
+ /* at first set_online allocate netdev */
+ card->dev = qeth_get_netdevice(card->info.type,
+ card->info.link_type);
+ if (!card->dev){
+ qeth_qdio_clear_card(card, card->info.type ==
+ QETH_CARD_TYPE_OSAE);
+ rc = -ENODEV;
+ QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
+ goto out;
+ }
+ card->dev->priv = card;
+ card->orig_hard_header = card->dev->hard_header;
+ card->dev->type = qeth_get_arphdr_type(card->info.type,
+ card->info.link_type);
+ card->dev->init = qeth_netdev_init;
+ return 0;
+out:
+ PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
+ return rc;
+}
+
+static int
+qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"defadpcb");
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.return_code == 0){
+ cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
+ if (cmd->hdr.prot_version == QETH_PROT_IPV4)
+ card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
+#ifdef CONFIG_QETH_IPV6
+ if (cmd->hdr.prot_version == QETH_PROT_IPV6)
+ card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
+#endif
+ }
+ if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
+ cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
+ card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
+ QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
+ }
+ return 0;
+}
+
+static int
+qeth_default_setadapterparms_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"defadpcb");
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.return_code == 0)
+ cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
+ return 0;
+}
+
+static int
+qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,3,"quyadpcb");
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
+ card->info.link_type =
+ cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
+ card->options.adp.supported_funcs =
+ cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
+ return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
+}
+
+static int
+qeth_query_setadapterparms(struct qeth_card *card)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(trace,3,"queryadp");
+ iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
+ sizeof(struct qeth_ipacmd_setadpparms));
+ rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
+ return rc;
+}
+
+static int
+qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"chgmaccb");
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ memcpy(card->dev->dev_addr,
+ &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
+ qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
+ return 0;
+}
+
+static int
+qeth_setadpparms_change_macaddr(struct qeth_card *card)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"chgmac");
+
+ iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
+ sizeof(struct qeth_ipacmd_setadpparms));
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
+ cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
+ memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
+ card->dev->dev_addr, OSA_ADDR_LEN);
+ rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
+ NULL);
+ return rc;
+}
+
+static int
+qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,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 inline int
+qeth_setadapter_hstr(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,4,"adphstr");
+
+ if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
+ rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
+ card->options.broadcast_mode);
+ if (rc)
+ PRINT_WARN("couldn't set broadcast mode on "
+ "device %s: x%x\n",
+ CARD_BUS_ID(card), rc);
+ rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
+ card->options.macaddr_mode);
+ if (rc)
+ PRINT_WARN("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)
+ PRINT_WARN("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)
+ PRINT_WARN("set adapter parameters not available "
+ "to set macaddr mode, using NONCANONICAL "
+ "on device %s:\n", CARD_BUS_ID(card));
+ return 0;
+}
+
+static int
+qeth_setadapter_parms(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "setadprm");
+
+ if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
+ PRINT_WARN("set adapter parameters not supported "
+ "on device %s.\n",
+ CARD_BUS_ID(card));
+ QETH_DBF_TEXT(setup, 2, " notsupp");
+ return 0;
+ }
+ rc = qeth_query_setadapterparms(card);
+ if (rc) {
+ PRINT_WARN("couldn't set adapter parameters on device %s: "
+ "x%x\n", CARD_BUS_ID(card), rc);
+ return rc;
+ }
+ if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
+ rc = qeth_setadpparms_change_macaddr(card);
+ if (rc)
+ PRINT_WARN("couldn't get MAC address on "
+ "device %s: x%x\n",
+ CARD_BUS_ID(card), rc);
+ }
+
+ if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
+ (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
+ rc = qeth_setadapter_hstr(card);
+
+ return rc;
+}
+
+static int
+qeth_layer2_initialize(struct qeth_card *card)
+{
+ int rc = 0;
+
+
+ QETH_DBF_TEXT(setup, 2, "doL2init");
+ QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
+
+ rc = qeth_setadpparms_change_macaddr(card);
+ if (rc) {
+ PRINT_WARN("couldn't get MAC address on "
+ "device %s: x%x\n",
+ CARD_BUS_ID(card), rc);
+ QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
+ return rc;
+ }
+ QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
+
+ rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
+ if (rc)
+ QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
+ return 0;
+}
+
+
+static int
+qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
+ enum qeth_prot_versions prot)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+ return rc;
+}
+
+static int
+qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
+{
+ int rc;
+
+ QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
+
+ rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
+ return rc;
+}
+
+static int
+qeth_send_stoplan(struct qeth_card *card)
+{
+ int rc = 0;
+
+ /*
+ * TODO: according to the IPA format document page 14,
+ * TCP/IP (we!) never issue a STOPLAN
+ * is this right ?!?
+ */
+ QETH_DBF_TEXT(trace, 2, "stoplan");
+
+ rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
+ return rc;
+}
+
+static int
+qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(setup, 2, "qipasscb");
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
+ card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
+ card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
+ } else {
+#ifdef CONFIG_QETH_IPV6
+ card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
+ card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
+#endif
+ }
+ QETH_DBF_TEXT(setup, 2, "suppenbl");
+ QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
+ QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
+ return 0;
+}
+
+static int
+qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
+ if (card->options.layer2) {
+ QETH_DBF_TEXT(setup, 2, "noprmly2");
+ return -EPERM;
+ }
+
+ iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
+ rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
+ return rc;
+}
+
+static struct qeth_cmd_buffer *
+qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
+ __u16 cmd_code, __u16 len,
+ enum qeth_prot_versions prot)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"getasscm");
+ iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
+
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ cmd->data.setassparms.hdr.assist_no = ipa_func;
+ cmd->data.setassparms.hdr.length = 8 + len;
+ cmd->data.setassparms.hdr.command_code = cmd_code;
+ cmd->data.setassparms.hdr.return_code = 0;
+ cmd->data.setassparms.hdr.seq_no = 0;
+
+ return iob;
+}
+
+static int
+qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
+ __u16 len, long data,
+ int (*reply_cb)
+ (struct qeth_card *,struct qeth_reply *,unsigned long),
+ void *reply_param)
+{
+ int rc;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,4,"sendassp");
+
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ if (len <= sizeof(__u32))
+ cmd->data.setassparms.data.flags_32bit = (__u32) data;
+ else if (len > sizeof(__u32))
+ memcpy(&cmd->data.setassparms.data, (void *) data, len);
+
+ rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
+ return rc;
+}
+
+#ifdef CONFIG_QETH_IPV6
+static int
+qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
+ enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
+
+{
+ int rc;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(trace,4,"simassp6");
+ iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
+ 0, QETH_PROT_IPV6);
+ rc = qeth_send_setassparms(card, iob, 0, 0,
+ qeth_default_setassparms_cb, NULL);
+ return rc;
+}
+#endif
+
+static int
+qeth_send_simple_setassparms(struct qeth_card *card,
+ enum qeth_ipa_funcs ipa_func,
+ __u16 cmd_code, long data)
+{
+ int rc;
+ int length = 0;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(trace,4,"simassp4");
+ if (data)
+ length = sizeof(__u32);
+ iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
+ length, QETH_PROT_IPV4);
+ rc = qeth_send_setassparms(card, iob, length, data,
+ qeth_default_setassparms_cb, NULL);
+ return rc;
+}
+
+static inline int
+qeth_start_ipa_arp_processing(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"ipaarp");
+
+ if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
+ PRINT_WARN("ARP processing not supported "
+ "on %s!\n", QETH_CARD_IFNAME(card));
+ return 0;
+ }
+ rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_START, 0);
+ if (rc) {
+ PRINT_WARN("Could not start ARP processing "
+ "assist on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ }
+ return rc;
+}
+
+static int
+qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"ipaipfrg");
+
+ if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
+ PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
+ QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+
+ rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
+ IPA_CMD_ASS_START, 0);
+ if (rc) {
+ PRINT_WARN("Could not start Hardware IP fragmentation "
+ "assist on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ } else
+ PRINT_INFO("Hardware IP fragmentation enabled \n");
+ return rc;
+}
+
+static int
+qeth_start_ipa_source_mac(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"stsrcmac");
+
+ if (!card->options.fake_ll)
+ return -EOPNOTSUPP;
+
+ if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
+ PRINT_INFO("Inbound source address not "
+ "supported on %s\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+
+ rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
+ IPA_CMD_ASS_START, 0);
+ if (rc)
+ PRINT_WARN("Could not start inbound source "
+ "assist on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ return rc;
+}
+
+static int
+qeth_start_ipa_vlan(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"strtvlan");
+
+#ifdef CONFIG_QETH_VLAN
+ if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
+ PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+
+ rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
+ IPA_CMD_ASS_START,0);
+ if (rc) {
+ PRINT_WARN("Could not start vlan "
+ "assist on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ } else {
+ PRINT_INFO("VLAN enabled \n");
+ card->dev->features |=
+ NETIF_F_HW_VLAN_FILTER |
+ NETIF_F_HW_VLAN_TX |
+ NETIF_F_HW_VLAN_RX;
+ }
+#endif /* QETH_VLAN */
+ return rc;
+}
+
+static int
+qeth_start_ipa_multicast(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"stmcast");
+
+ if (!qeth_is_supported(card, IPA_MULTICASTING)) {
+ PRINT_WARN("Multicast not supported on %s\n",
+ QETH_CARD_IFNAME(card));
+ return -EOPNOTSUPP;
+ }
+
+ rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
+ IPA_CMD_ASS_START,0);
+ if (rc) {
+ PRINT_WARN("Could not start multicast "
+ "assist on %s: rc=%i\n",
+ QETH_CARD_IFNAME(card), rc);
+ } else {
+ PRINT_INFO("Multicast enabled\n");
+ card->dev->flags |= IFF_MULTICAST;
+ }
+ return rc;
+}
+
+#ifdef CONFIG_QETH_IPV6
+static int
+qeth_softsetup_ipv6(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"softipv6");
+
+ netif_stop_queue(card->dev);
+ rc = qeth_send_startlan(card, QETH_PROT_IPV6);
+ if (rc) {
+ PRINT_ERR("IPv6 startlan failed on %s\n",
+ QETH_CARD_IFNAME(card));
+ return rc;
+ }
+ netif_wake_queue(card->dev);
+ rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
+ if (rc) {
+ PRINT_ERR("IPv6 query ipassist failed on %s\n",
+ QETH_CARD_IFNAME(card));
+ return rc;
+ }
+ rc = qeth_send_simple_setassparms(card, IPA_IPV6,
+ IPA_CMD_ASS_START, 3);
+ if (rc) {
+ PRINT_WARN("IPv6 start assist (version 4) failed "
+ "on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ return rc;
+ }
+ rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
+ IPA_CMD_ASS_START);
+ if (rc) {
+ PRINT_WARN("IPV6 start assist (version 6) failed "
+ "on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ return rc;
+ }
+ rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
+ IPA_CMD_ASS_START);
+ if (rc) {
+ PRINT_WARN("Could not enable passthrough "
+ "on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ return rc;
+ }
+ PRINT_INFO("IPV6 enabled \n");
+ return 0;
+}
+
+#endif
+
+static int
+qeth_start_ipa_ipv6(struct qeth_card *card)
+{
+ int rc = 0;
+#ifdef CONFIG_QETH_IPV6
+ QETH_DBF_TEXT(trace,3,"strtipv6");
+
+ if (!qeth_is_supported(card, IPA_IPV6)) {
+ PRINT_WARN("IPv6 not supported on %s\n",
+ QETH_CARD_IFNAME(card));
+ return 0;
+ }
+ rc = qeth_softsetup_ipv6(card);
+#endif
+ return rc ;
+}
+
+static int
+qeth_start_ipa_broadcast(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"stbrdcst");
+ card->info.broadcast_capable = 0;
+ if (!qeth_is_supported(card, IPA_FILTERING)) {
+ PRINT_WARN("Broadcast not supported on %s\n",
+ QETH_CARD_IFNAME(card));
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+ rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
+ IPA_CMD_ASS_START, 0);
+ if (rc) {
+ PRINT_WARN("Could not enable broadcasting filtering "
+ "on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ goto out;
+ }
+
+ rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
+ IPA_CMD_ASS_CONFIGURE, 1);
+ if (rc) {
+ PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
+ QETH_CARD_IFNAME(card), rc);
+ goto out;
+ }
+ card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
+ PRINT_INFO("Broadcast enabled \n");
+ rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
+ IPA_CMD_ASS_ENABLE, 1);
+ if (rc) {
+ PRINT_WARN("Could not set up broadcast echo filtering on "
+ "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
+ goto out;
+ }
+ card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
+out:
+ if (card->info.broadcast_capable)
+ card->dev->flags |= IFF_BROADCAST;
+ else
+ card->dev->flags &= ~IFF_BROADCAST;
+ return rc;
+}
+
+static int
+qeth_send_checksum_command(struct qeth_card *card)
+{
+ int rc;
+
+ rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
+ IPA_CMD_ASS_START, 0);
+ if (rc) {
+ PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
+ "0x%x,\ncontinuing using Inbound SW Checksumming\n",
+ QETH_CARD_IFNAME(card), rc);
+ return rc;
+ }
+ rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
+ IPA_CMD_ASS_ENABLE,
+ card->info.csum_mask);
+ if (rc) {
+ PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
+ "0x%x,\ncontinuing using Inbound SW Checksumming\n",
+ QETH_CARD_IFNAME(card), rc);
+ return rc;
+ }
+ return 0;
+}
+
+static int
+qeth_start_ipa_checksum(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"strtcsum");
+
+ if (card->options.checksum_type == NO_CHECKSUMMING) {
+ PRINT_WARN("Using no checksumming on %s.\n",
+ QETH_CARD_IFNAME(card));
+ return 0;
+ }
+ if (card->options.checksum_type == SW_CHECKSUMMING) {
+ PRINT_WARN("Using SW checksumming on %s.\n",
+ QETH_CARD_IFNAME(card));
+ return 0;
+ }
+ if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
+ PRINT_WARN("Inbound HW Checksumming not "
+ "supported on %s,\ncontinuing "
+ "using Inbound SW Checksumming\n",
+ QETH_CARD_IFNAME(card));
+ card->options.checksum_type = SW_CHECKSUMMING;
+ return 0;
+ }
+ rc = qeth_send_checksum_command(card);
+ if (!rc) {
+ PRINT_INFO("HW Checksumming (inbound) enabled \n");
+ }
+ return rc;
+}
+
+static int
+qeth_start_ipa_tso(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"sttso");
+
+ if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
+ PRINT_WARN("Outbound TSO not supported on %s\n",
+ QETH_CARD_IFNAME(card));
+ rc = -EOPNOTSUPP;
+ } else {
+ rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
+ IPA_CMD_ASS_START,0);
+ if (rc)
+ PRINT_WARN("Could not start outbound TSO "
+ "assist on %s: rc=%i\n",
+ QETH_CARD_IFNAME(card), rc);
+ else
+ PRINT_INFO("Outbound TSO enabled\n");
+ }
+ if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
+ card->options.large_send = QETH_LARGE_SEND_NO;
+ card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
+ }
+ return rc;
+}
+
+static int
+qeth_start_ipassists(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(trace,3,"strtipas");
+ qeth_start_ipa_arp_processing(card); /* go on*/
+ qeth_start_ipa_ip_fragmentation(card); /* go on*/
+ qeth_start_ipa_source_mac(card); /* go on*/
+ qeth_start_ipa_vlan(card); /* go on*/
+ qeth_start_ipa_multicast(card); /* go on*/
+ qeth_start_ipa_ipv6(card); /* go on*/
+ qeth_start_ipa_broadcast(card); /* go on*/
+ qeth_start_ipa_checksum(card); /* go on*/
+ qeth_start_ipa_tso(card); /* go on*/
+ return 0;
+}
+
+static int
+qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
+ enum qeth_prot_versions prot)
+{
+ int rc;
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_cmd_buffer *iob;
+
+ QETH_DBF_TEXT(trace,4,"setroutg");
+ iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ cmd->data.setrtg.type = (type);
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+ return rc;
+
+}
+
+static void
+qeth_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) {
+ switch (*type) {
+ case NO_ROUTER:
+ case PRIMARY_CONNECTOR:
+ case SECONDARY_CONNECTOR:
+ case MULTICAST_ROUTER:
+ return;
+ default:
+ goto out_inval;
+ }
+ } else {
+ switch (*type) {
+ case NO_ROUTER:
+ case PRIMARY_ROUTER:
+ case SECONDARY_ROUTER:
+ return;
+ case MULTICAST_ROUTER:
+ if (qeth_is_ipafunc_supported(card, prot,
+ IPA_OSA_MC_ROUTER))
+ return;
+ default:
+ goto out_inval;
+ }
+ }
+out_inval:
+ PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
+ "Router status set to 'no router'.\n",
+ ((*type == PRIMARY_ROUTER)? "primary router" :
+ (*type == SECONDARY_ROUTER)? "secondary router" :
+ (*type == PRIMARY_CONNECTOR)? "primary connector" :
+ (*type == SECONDARY_CONNECTOR)? "secondary connector" :
+ (*type == MULTICAST_ROUTER)? "multicast router" :
+ "unknown"),
+ card->dev->name);
+ *type = NO_ROUTER;
+}
+
+int
+qeth_setrouting_v4(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(trace,3,"setrtg4");
+
+ qeth_correct_routing_type(card, &card->options.route4.type,
+ QETH_PROT_IPV4);
+
+ rc = qeth_send_setrouting(card, card->options.route4.type,
+ QETH_PROT_IPV4);
+ if (rc) {
+ card->options.route4.type = NO_ROUTER;
+ PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
+ "Type set to 'no router'.\n",
+ rc, QETH_CARD_IFNAME(card));
+ }
+ return rc;
+}
+
+int
+qeth_setrouting_v6(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace,3,"setrtg6");
+#ifdef CONFIG_QETH_IPV6
+
+ qeth_correct_routing_type(card, &card->options.route6.type,
+ QETH_PROT_IPV6);
+
+ if ((card->options.route6.type == NO_ROUTER) ||
+ ((card->info.type == QETH_CARD_TYPE_OSAE) &&
+ (card->options.route6.type == MULTICAST_ROUTER) &&
+ !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
+ return 0;
+ rc = qeth_send_setrouting(card, card->options.route6.type,
+ QETH_PROT_IPV6);
+ if (rc) {
+ card->options.route6.type = NO_ROUTER;
+ PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
+ "Type set to 'no router'.\n",
+ rc, QETH_CARD_IFNAME(card));
+ }
+#endif
+ return rc;
+}
+
+int
+qeth_set_large_send(struct qeth_card *card)
+{
+ int rc = 0;
+
+ if (card->dev == NULL)
+ return 0;
+
+ netif_stop_queue(card->dev);
+ switch (card->options.large_send) {
+ case QETH_LARGE_SEND_EDDP:
+ card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
+ break;
+ case QETH_LARGE_SEND_TSO:
+ if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
+ card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
+ } else {
+ PRINT_WARN("TSO not supported on %s. "
+ "large_send set to 'no'.\n",
+ card->dev->name);
+ card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
+ card->options.large_send = QETH_LARGE_SEND_NO;
+ rc = -EOPNOTSUPP;
+ }
+ break;
+ default: /* includes QETH_LARGE_SEND_NO */
+ card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
+ break;
+ }
+
+ netif_wake_queue(card->dev);
+ return rc;
+}
+
+/*
+ * softsetup card: init IPA stuff
+ */
+static int
+qeth_softsetup_card(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(setup, 2, "softsetp");
+
+ if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ if (rc == 0xe080){
+ PRINT_WARN("LAN on card %s if offline! "
+ "Continuing softsetup.\n",
+ CARD_BUS_ID(card));
+ card->lan_online = 0;
+ } else
+ return rc;
+ } else
+ card->lan_online = 1;
+ if (card->options.layer2) {
+ card->dev->features |=
+ NETIF_F_HW_VLAN_FILTER |
+ NETIF_F_HW_VLAN_TX |
+ NETIF_F_HW_VLAN_RX;
+ card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
+ card->info.broadcast_capable=1;
+ if ((rc = qeth_layer2_initialize(card))) {
+ QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
+ return rc;
+ }
+#ifdef CONFIG_QETH_VLAN
+ qeth_layer2_process_vlans(card, 0);
+#endif
+ goto out;
+ }
+ if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
+ (card->options.large_send == QETH_LARGE_SEND_TSO))
+ card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
+ else
+ card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
+
+ if ((rc = qeth_setadapter_parms(card)))
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ if ((rc = qeth_start_ipassists(card)))
+ QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
+ if ((rc = qeth_setrouting_v4(card)))
+ QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
+ if ((rc = qeth_setrouting_v6(card)))
+ QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
+out:
+ netif_stop_queue(card->dev);
+ return 0;
+}
+
+#ifdef CONFIG_QETH_IPV6
+static int
+qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ if (cmd->hdr.return_code == 0)
+ card->info.unique_id = *((__u16 *)
+ &cmd->data.create_destroy_addr.unique_id[6]);
+ else {
+ card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
+ UNIQUE_ID_NOT_BY_CARD;
+ PRINT_WARN("couldn't get a unique id from the card on device "
+ "%s (result=x%x), using default id. ipv6 "
+ "autoconfig on other lpars may lead to duplicate "
+ "ip addresses. please use manually "
+ "configured ones.\n",
+ CARD_BUS_ID(card), cmd->hdr.return_code);
+ }
+ return 0;
+}
+#endif
+
+static int
+qeth_put_unique_id(struct qeth_card *card)
+{
+
+ int rc = 0;
+#ifdef CONFIG_QETH_IPV6
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace,2,"puniqeid");
+
+ if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
+ UNIQUE_ID_NOT_BY_CARD)
+ return -1;
+ iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
+ QETH_PROT_IPV6);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
+ card->info.unique_id;
+ memcpy(&cmd->data.create_destroy_addr.unique_id[0],
+ card->dev->dev_addr, OSA_ADDR_LEN);
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+#else
+ card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
+ UNIQUE_ID_NOT_BY_CARD;
+#endif
+ return rc;
+}
+
+/**
+ * Clear IP List
+ */
+static void
+qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
+{
+ struct qeth_ipaddr *addr, *tmp;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace,4,"clearip");
+ spin_lock_irqsave(&card->ip_lock, flags);
+ /* clear todo list */
+ list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
+ list_del(&addr->entry);
+ kfree(addr);
+ }
+
+ while (!list_empty(&card->ip_list)) {
+ addr = list_entry(card->ip_list.next,
+ struct qeth_ipaddr, entry);
+ list_del_init(&addr->entry);
+ if (clean) {
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ qeth_deregister_addr_entry(card, addr);
+ spin_lock_irqsave(&card->ip_lock, flags);
+ }
+ if (!recover || addr->is_multicast) {
+ kfree(addr);
+ continue;
+ }
+ list_add_tail(&addr->entry, card->ip_tbd_list);
+ }
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+static void
+qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
+ int clear_start_mask)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ card->thread_allowed_mask = threads;
+ if (clear_start_mask)
+ card->thread_start_mask &= threads;
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ wake_up(&card->wait_q);
+}
+
+static inline int
+qeth_threads_running(struct qeth_card *card, unsigned long threads)
+{
+ unsigned long flags;
+ int rc = 0;
+
+ spin_lock_irqsave(&card->thread_mask_lock, flags);
+ rc = (card->thread_running_mask & threads);
+ spin_unlock_irqrestore(&card->thread_mask_lock, flags);
+ return rc;
+}
+
+static int
+qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
+{
+ return wait_event_interruptible(card->wait_q,
+ qeth_threads_running(card, threads) == 0);
+}
+
+static int
+qeth_stop_card(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_DBF_TEXT(setup ,2,"stopcard");
+ QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
+
+ qeth_set_allowed_threads(card, 0, 1);
+ if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
+ return -ERESTARTSYS;
+ if (card->read.state == CH_STATE_UP &&
+ card->write.state == CH_STATE_UP &&
+ (card->state == CARD_STATE_UP)) {
+ rtnl_lock();
+ dev_close(card->dev);
+ rtnl_unlock();
+ if (!card->use_hard_stop) {
+ __u8 *mac = &card->dev->dev_addr[0];
+ rc = qeth_layer2_send_delmac(card, mac);
+ QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
+ if ((rc = qeth_send_stoplan(card)))
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ }
+ card->state = CARD_STATE_SOFTSETUP;
+ }
+ if (card->state == CARD_STATE_SOFTSETUP) {
+#ifdef CONFIG_QETH_VLAN
+ if (card->options.layer2)
+ qeth_layer2_process_vlans(card, 1);
+#endif
+ qeth_clear_ip_list(card, !card->use_hard_stop, 1);
+ qeth_clear_ipacmd_list(card);
+ card->state = CARD_STATE_HARDSETUP;
+ }
+ if (card->state == CARD_STATE_HARDSETUP) {
+ if ((!card->use_hard_stop) &&
+ (!card->options.layer2))
+ if ((rc = qeth_put_unique_id(card)))
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ qeth_qdio_clear_card(card, 0);
+ qeth_clear_qdio_buffers(card);
+ qeth_clear_working_pool_list(card);
+ card->state = CARD_STATE_DOWN;
+ }
+ if (card->state == CARD_STATE_DOWN) {
+ qeth_clear_cmd_buffers(&card->read);
+ qeth_clear_cmd_buffers(&card->write);
+ }
+ card->use_hard_stop = 0;
+ return rc;
+}
+
+
+static int
+qeth_get_unique_id(struct qeth_card *card)
+{
+ int rc = 0;
+#ifdef CONFIG_QETH_IPV6
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(setup, 2, "guniqeid");
+
+ if (!qeth_is_supported(card,IPA_IPV6)) {
+ card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
+ UNIQUE_ID_NOT_BY_CARD;
+ return 0;
+ }
+
+ iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
+ QETH_PROT_IPV6);
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
+ card->info.unique_id;
+
+ rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
+#else
+ card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
+ UNIQUE_ID_NOT_BY_CARD;
+#endif
+ return rc;
+}
+static void
+qeth_print_status_with_portname(struct qeth_card *card)
+{
+ char dbf_text[15];
+ int i;
+
+ sprintf(dbf_text, "%s", card->info.portname + 1);
+ for (i = 0; i < 8; i++)
+ dbf_text[i] =
+ (char) _ebcasc[(__u8) dbf_text[i]];
+ dbf_text[8] = 0;
+ printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
+ "with link type %s (portname: %s)\n",
+ CARD_RDEV_ID(card),
+ CARD_WDEV_ID(card),
+ CARD_DDEV_ID(card),
+ qeth_get_cardname(card),
+ (card->info.mcl_level[0]) ? " (level: " : "",
+ (card->info.mcl_level[0]) ? card->info.mcl_level : "",
+ (card->info.mcl_level[0]) ? ")" : "",
+ qeth_get_cardname_short(card),
+ dbf_text);
+
+}
+
+static void
+qeth_print_status_no_portname(struct qeth_card *card)
+{
+ if (card->info.portname[0])
+ printk("qeth: Device %s/%s/%s is a%s "
+ "card%s%s%s\nwith link type %s "
+ "(no portname needed by interface).\n",
+ CARD_RDEV_ID(card),
+ CARD_WDEV_ID(card),
+ CARD_DDEV_ID(card),
+ qeth_get_cardname(card),
+ (card->info.mcl_level[0]) ? " (level: " : "",
+ (card->info.mcl_level[0]) ? card->info.mcl_level : "",
+ (card->info.mcl_level[0]) ? ")" : "",
+ qeth_get_cardname_short(card));
+ else
+ printk("qeth: Device %s/%s/%s is a%s "
+ "card%s%s%s\nwith link type %s.\n",
+ CARD_RDEV_ID(card),
+ CARD_WDEV_ID(card),
+ CARD_DDEV_ID(card),
+ qeth_get_cardname(card),
+ (card->info.mcl_level[0]) ? " (level: " : "",
+ (card->info.mcl_level[0]) ? card->info.mcl_level : "",
+ (card->info.mcl_level[0]) ? ")" : "",
+ qeth_get_cardname_short(card));
+}
+
+static void
+qeth_print_status_message(struct qeth_card *card)
+{
+ switch (card->info.type) {
+ case QETH_CARD_TYPE_OSAE:
+ /* VM will use a non-zero first character
+ * to indicate a HiperSockets like reporting
+ * of the level OSA sets the first character to zero
+ * */
+ if (!card->info.mcl_level[0]) {
+ sprintf(card->info.mcl_level,"%02x%02x",
+ card->info.mcl_level[2],
+ card->info.mcl_level[3]);
+
+ card->info.mcl_level[QETH_MCL_LENGTH] = 0;
+ break;
+ }
+ /* fallthrough */
+ case QETH_CARD_TYPE_IQD:
+ card->info.mcl_level[0] = (char) _ebcasc[(__u8)
+ card->info.mcl_level[0]];
+ card->info.mcl_level[1] = (char) _ebcasc[(__u8)
+ card->info.mcl_level[1]];
+ card->info.mcl_level[2] = (char) _ebcasc[(__u8)
+ card->info.mcl_level[2]];
+ card->info.mcl_level[3] = (char) _ebcasc[(__u8)
+ card->info.mcl_level[3]];
+ card->info.mcl_level[QETH_MCL_LENGTH] = 0;
+ break;
+ default:
+ memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
+ }
+ if (card->info.portname_required)
+ qeth_print_status_with_portname(card);
+ else
+ qeth_print_status_no_portname(card);
+}
+
+static int
+qeth_register_netdev(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(setup, 3, "regnetd");
+ if (card->dev->reg_state != NETREG_UNINITIALIZED) {
+ qeth_netdev_init(card->dev);
+ return 0;
+ }
+ /* sysfs magic */
+ SET_NETDEV_DEV(card->dev, &card->gdev->dev);
+ return register_netdev(card->dev);
+}
+
+static void
+qeth_start_again(struct qeth_card *card)
+{
+ QETH_DBF_TEXT(setup ,2, "startag");
+
+ rtnl_lock();
+ dev_open(card->dev);
+ rtnl_unlock();
+ /* this also sets saved unicast addresses */
+ qeth_set_multicast_list(card->dev);
+}
+
+
+/* Layer 2 specific stuff */
+#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
+ if (card->options.option == value) { \
+ PRINT_ERR("%s not supported with layer 2 " \
+ "functionality, ignoring option on read" \
+ "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
+ card->options.option = reset_value; \
+ }
+#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
+ if (card->options.option != value) { \
+ PRINT_ERR("%s not supported with layer 2 " \
+ "functionality, ignoring option on read" \
+ "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
+ card->options.option = reset_value; \
+ }
+
+
+static void qeth_make_parameters_consistent(struct qeth_card *card)
+{
+
+ if (card->options.layer2) {
+ if (card->info.type == QETH_CARD_TYPE_IQD) {
+ PRINT_ERR("Device %s does not support " \
+ "layer 2 functionality. " \
+ "Ignoring layer2 option.\n",CARD_BUS_ID(card));
+ }
+ IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
+ "Routing options are");
+#ifdef CONFIG_QETH_IPV6
+ IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
+ "Routing options are");
+#endif
+ IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
+ QETH_CHECKSUM_DEFAULT,
+ "Checksumming options are");
+ IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
+ QETH_TR_BROADCAST_ALLRINGS,
+ "Broadcast mode options are");
+ IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
+ QETH_TR_MACADDR_NONCANONICAL,
+ "Canonical MAC addr options are");
+ IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
+ "Broadcast faking options are");
+ IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
+ DEFAULT_ADD_HHLEN,"Option add_hhlen is");
+ IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
+ }
+}
+
+
+static int
+qeth_set_online(struct ccwgroup_device *gdev)
+{
+ struct qeth_card *card = gdev->dev.driver_data;
+ int rc = 0;
+ enum qeth_card_states recover_flag;
+
+ BUG_ON(!card);
+ QETH_DBF_TEXT(setup ,2, "setonlin");
+ QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
+
+ qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
+ if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
+ PRINT_WARN("set_online of card %s interrupted by user!\n",
+ CARD_BUS_ID(card));
+ return -ERESTARTSYS;
+ }
+
+ recover_flag = card->state;
+ if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
+ (rc = ccw_device_set_online(CARD_WDEV(card))) ||
+ (rc = ccw_device_set_online(CARD_DDEV(card)))){
+ QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
+ return -EIO;
+ }
+
+ if (card->options.layer2)
+ qeth_make_parameters_consistent(card);
+
+ if ((rc = qeth_hardsetup_card(card))){
+ QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
+ goto out_remove;
+ }
+ card->state = CARD_STATE_HARDSETUP;
+
+ if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
+ rc = qeth_get_unique_id(card);
+
+ if (rc && card->options.layer2 == 0) {
+ QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
+ goto out_remove;
+ }
+ qeth_print_status_message(card);
+ if ((rc = qeth_register_netdev(card))){
+ QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
+ goto out_remove;
+ }
+ if ((rc = qeth_softsetup_card(card))){
+ QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
+ goto out_remove;
+ }
+ card->state = CARD_STATE_SOFTSETUP;
+
+ if ((rc = qeth_init_qdio_queues(card))){
+ QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
+ goto out_remove;
+ }
+/*maybe it was set offline without ifconfig down
+ * we can also use this state for recovery purposes*/
+ qeth_set_allowed_threads(card, 0xffffffff, 0);
+ if (recover_flag == CARD_STATE_RECOVER)
+ qeth_start_again(card);
+ qeth_notify_processes();
+ return 0;
+out_remove:
+ card->use_hard_stop = 1;
+ qeth_stop_card(card);
+ ccw_device_set_offline(CARD_DDEV(card));
+ ccw_device_set_offline(CARD_WDEV(card));
+ ccw_device_set_offline(CARD_RDEV(card));
+ if (recover_flag == CARD_STATE_RECOVER)
+ card->state = CARD_STATE_RECOVER;
+ else
+ card->state = CARD_STATE_DOWN;
+ return -ENODEV;
+}
+
+static struct ccw_device_id qeth_ids[] = {
+ {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
+ {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
+ {},
+};
+MODULE_DEVICE_TABLE(ccw, qeth_ids);
+
+struct device *qeth_root_dev = NULL;
+
+struct ccwgroup_driver qeth_ccwgroup_driver = {
+ .owner = THIS_MODULE,
+ .name = "qeth",
+ .driver_id = 0xD8C5E3C8,
+ .probe = qeth_probe_device,
+ .remove = qeth_remove_device,
+ .set_online = qeth_set_online,
+ .set_offline = qeth_set_offline,
+};
+
+struct ccw_driver qeth_ccw_driver = {
+ .name = "qeth",
+ .ids = qeth_ids,
+ .probe = ccwgroup_probe_ccwdev,
+ .remove = ccwgroup_remove_ccwdev,
+};
+
+
+static void
+qeth_unregister_dbf_views(void)
+{
+ if (qeth_dbf_setup)
+ debug_unregister(qeth_dbf_setup);
+ if (qeth_dbf_qerr)
+ debug_unregister(qeth_dbf_qerr);
+ if (qeth_dbf_sense)
+ debug_unregister(qeth_dbf_sense);
+ if (qeth_dbf_misc)
+ debug_unregister(qeth_dbf_misc);
+ if (qeth_dbf_data)
+ debug_unregister(qeth_dbf_data);
+ if (qeth_dbf_control)
+ debug_unregister(qeth_dbf_control);
+ if (qeth_dbf_trace)
+ debug_unregister(qeth_dbf_trace);
+}
+static int
+qeth_register_dbf_views(void)
+{
+ qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
+ QETH_DBF_SETUP_INDEX,
+ QETH_DBF_SETUP_NR_AREAS,
+ QETH_DBF_SETUP_LEN);
+ qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
+ QETH_DBF_MISC_INDEX,
+ QETH_DBF_MISC_NR_AREAS,
+ QETH_DBF_MISC_LEN);
+ qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
+ QETH_DBF_DATA_INDEX,
+ QETH_DBF_DATA_NR_AREAS,
+ QETH_DBF_DATA_LEN);
+ qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
+ QETH_DBF_CONTROL_INDEX,
+ QETH_DBF_CONTROL_NR_AREAS,
+ QETH_DBF_CONTROL_LEN);
+ qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
+ QETH_DBF_SENSE_INDEX,
+ QETH_DBF_SENSE_NR_AREAS,
+ QETH_DBF_SENSE_LEN);
+ qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
+ QETH_DBF_QERR_INDEX,
+ QETH_DBF_QERR_NR_AREAS,
+ QETH_DBF_QERR_LEN);
+ qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
+ QETH_DBF_TRACE_INDEX,
+ QETH_DBF_TRACE_NR_AREAS,
+ QETH_DBF_TRACE_LEN);
+
+ if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
+ (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
+ (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
+ (qeth_dbf_trace == NULL)) {
+ qeth_unregister_dbf_views();
+ return -ENOMEM;
+ }
+ debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
+
+ debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
+
+ debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
+
+ debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
+
+ debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
+
+ debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
+
+ debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
+ debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
+
+ return 0;
+}
+
+#ifdef CONFIG_QETH_IPV6
+extern struct neigh_table arp_tbl;
+static struct neigh_ops *arp_direct_ops;
+static int (*qeth_old_arp_constructor) (struct neighbour *);
+
+static struct neigh_ops arp_direct_ops_template = {
+ .family = AF_INET,
+ .destructor = NULL,
+ .solicit = NULL,
+ .error_report = NULL,
+ .output = dev_queue_xmit,
+ .connected_output = dev_queue_xmit,
+ .hh_output = dev_queue_xmit,
+ .queue_xmit = dev_queue_xmit
+};
+
+static int
+qeth_arp_constructor(struct neighbour *neigh)
+{
+ struct net_device *dev = neigh->dev;
+ struct in_device *in_dev;
+ struct neigh_parms *parms;
+ struct qeth_card *card;
+
+ card = qeth_get_card_from_dev(dev);
+ if (card == NULL)
+ goto out;
+ if((card->options.layer2) ||
+ (card->dev->hard_header == qeth_fake_header))
+ goto out;
+
+ rcu_read_lock();
+ in_dev = rcu_dereference(__in_dev_get(dev));
+ if (in_dev == NULL) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
+
+ parms = in_dev->arp_parms;
+ __neigh_parms_put(neigh->parms);
+ neigh->parms = neigh_parms_clone(parms);
+ rcu_read_unlock();
+
+ neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
+ neigh->nud_state = NUD_NOARP;
+ neigh->ops = arp_direct_ops;
+ neigh->output = neigh->ops->queue_xmit;
+ return 0;
+out:
+ return qeth_old_arp_constructor(neigh);
+}
+#endif /*CONFIG_QETH_IPV6*/
+
+/*
+ * IP address takeover related functions
+ */
+static void
+qeth_clear_ipato_list(struct qeth_card *card)
+{
+ struct qeth_ipato_entry *ipatoe, *tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&card->ip_lock, flags);
+ list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
+ list_del(&ipatoe->entry);
+ kfree(ipatoe);
+ }
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+int
+qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
+{
+ struct qeth_ipato_entry *ipatoe;
+ unsigned long flags;
+ int rc = 0;
+
+ QETH_DBF_TEXT(trace, 2, "addipato");
+ spin_lock_irqsave(&card->ip_lock, flags);
+ list_for_each_entry(ipatoe, &card->ipato.entries, entry){
+ if (ipatoe->proto != new->proto)
+ continue;
+ if (!memcmp(ipatoe->addr, new->addr,
+ (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
+ (ipatoe->mask_bits == new->mask_bits)){
+ PRINT_WARN("ipato entry already exists!\n");
+ rc = -EEXIST;
+ break;
+ }
+ }
+ if (!rc) {
+ list_add_tail(&new->entry, &card->ipato.entries);
+ }
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ return rc;
+}
+
+void
+qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
+ u8 *addr, int mask_bits)
+{
+ struct qeth_ipato_entry *ipatoe, *tmp;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace, 2, "delipato");
+ spin_lock_irqsave(&card->ip_lock, flags);
+ list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
+ if (ipatoe->proto != proto)
+ continue;
+ if (!memcmp(ipatoe->addr, addr,
+ (proto == QETH_PROT_IPV4)? 4:16) &&
+ (ipatoe->mask_bits == mask_bits)){
+ list_del(&ipatoe->entry);
+ kfree(ipatoe);
+ }
+ }
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+static inline void
+qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
+{
+ int i, j;
+ u8 octet;
+
+ for (i = 0; i < len; ++i){
+ octet = addr[i];
+ for (j = 7; j >= 0; --j){
+ bits[i*8 + j] = octet & 1;
+ octet >>= 1;
+ }
+ }
+}
+
+static int
+qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+ struct qeth_ipato_entry *ipatoe;
+ u8 addr_bits[128] = {0, };
+ u8 ipatoe_bits[128] = {0, };
+ int rc = 0;
+
+ if (!card->ipato.enabled)
+ return 0;
+
+ qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
+ (addr->proto == QETH_PROT_IPV4)? 4:16);
+ list_for_each_entry(ipatoe, &card->ipato.entries, entry){
+ if (addr->proto != ipatoe->proto)
+ continue;
+ qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
+ (ipatoe->proto==QETH_PROT_IPV4) ?
+ 4:16);
+ if (addr->proto == QETH_PROT_IPV4)
+ rc = !memcmp(addr_bits, ipatoe_bits,
+ min(32, ipatoe->mask_bits));
+ else
+ rc = !memcmp(addr_bits, ipatoe_bits,
+ min(128, ipatoe->mask_bits));
+ if (rc)
+ break;
+ }
+ /* invert? */
+ if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
+ rc = !rc;
+ else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
+ rc = !rc;
+
+ return rc;
+}
+
+/*
+ * VIPA related functions
+ */
+int
+qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
+ const u8 *addr)
+{
+ struct qeth_ipaddr *ipaddr;
+ unsigned long flags;
+ int rc = 0;
+
+ ipaddr = qeth_get_addr_buffer(proto);
+ if (ipaddr){
+ if (proto == QETH_PROT_IPV4){
+ QETH_DBF_TEXT(trace, 2, "addvipa4");
+ memcpy(&ipaddr->u.a4.addr, addr, 4);
+ ipaddr->u.a4.mask = 0;
+#ifdef CONFIG_QETH_IPV6
+ } else if (proto == QETH_PROT_IPV6){
+ QETH_DBF_TEXT(trace, 2, "addvipa6");
+ memcpy(&ipaddr->u.a6.addr, addr, 16);
+ ipaddr->u.a6.pfxlen = 0;
+#endif
+ }
+ ipaddr->type = QETH_IP_TYPE_VIPA;
+ ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
+ ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
+ } else
+ return -ENOMEM;
+ spin_lock_irqsave(&card->ip_lock, flags);
+ if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
+ __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
+ rc = -EEXIST;
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ if (rc){
+ PRINT_WARN("Cannot add VIPA. Address already exists!\n");
+ return rc;
+ }
+ if (!qeth_add_ip(card, ipaddr))
+ kfree(ipaddr);
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+ return rc;
+}
+
+void
+qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
+ const u8 *addr)
+{
+ struct qeth_ipaddr *ipaddr;
+
+ ipaddr = qeth_get_addr_buffer(proto);
+ if (ipaddr){
+ if (proto == QETH_PROT_IPV4){
+ QETH_DBF_TEXT(trace, 2, "delvipa4");
+ memcpy(&ipaddr->u.a4.addr, addr, 4);
+ ipaddr->u.a4.mask = 0;
+#ifdef CONFIG_QETH_IPV6
+ } else if (proto == QETH_PROT_IPV6){
+ QETH_DBF_TEXT(trace, 2, "delvipa6");
+ memcpy(&ipaddr->u.a6.addr, addr, 16);
+ ipaddr->u.a6.pfxlen = 0;
+#endif
+ }
+ ipaddr->type = QETH_IP_TYPE_VIPA;
+ } else
+ return;
+ if (!qeth_delete_ip(card, ipaddr))
+ kfree(ipaddr);
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+}
+
+/*
+ * proxy ARP related functions
+ */
+int
+qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
+ const u8 *addr)
+{
+ struct qeth_ipaddr *ipaddr;
+ unsigned long flags;
+ int rc = 0;
+
+ ipaddr = qeth_get_addr_buffer(proto);
+ if (ipaddr){
+ if (proto == QETH_PROT_IPV4){
+ QETH_DBF_TEXT(trace, 2, "addrxip4");
+ memcpy(&ipaddr->u.a4.addr, addr, 4);
+ ipaddr->u.a4.mask = 0;
+#ifdef CONFIG_QETH_IPV6
+ } else if (proto == QETH_PROT_IPV6){
+ QETH_DBF_TEXT(trace, 2, "addrxip6");
+ memcpy(&ipaddr->u.a6.addr, addr, 16);
+ ipaddr->u.a6.pfxlen = 0;
+#endif
+ }
+ ipaddr->type = QETH_IP_TYPE_RXIP;
+ ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
+ ipaddr->del_flags = 0;
+ } else
+ return -ENOMEM;
+ spin_lock_irqsave(&card->ip_lock, flags);
+ if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
+ __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
+ rc = -EEXIST;
+ spin_unlock_irqrestore(&card->ip_lock, flags);
+ if (rc){
+ PRINT_WARN("Cannot add RXIP. Address already exists!\n");
+ return rc;
+ }
+ if (!qeth_add_ip(card, ipaddr))
+ kfree(ipaddr);
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+ return 0;
+}
+
+void
+qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
+ const u8 *addr)
+{
+ struct qeth_ipaddr *ipaddr;
+
+ ipaddr = qeth_get_addr_buffer(proto);
+ if (ipaddr){
+ if (proto == QETH_PROT_IPV4){
+ QETH_DBF_TEXT(trace, 2, "addrxip4");
+ memcpy(&ipaddr->u.a4.addr, addr, 4);
+ ipaddr->u.a4.mask = 0;
+#ifdef CONFIG_QETH_IPV6
+ } else if (proto == QETH_PROT_IPV6){
+ QETH_DBF_TEXT(trace, 2, "addrxip6");
+ memcpy(&ipaddr->u.a6.addr, addr, 16);
+ ipaddr->u.a6.pfxlen = 0;
+#endif
+ }
+ ipaddr->type = QETH_IP_TYPE_RXIP;
+ } else
+ return;
+ if (!qeth_delete_ip(card, ipaddr))
+ kfree(ipaddr);
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+}
+
+/**
+ * IP event handler
+ */
+static int
+qeth_ip_event(struct notifier_block *this,
+ unsigned long event,void *ptr)
+{
+ struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
+ struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
+ struct qeth_ipaddr *addr;
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace,3,"ipevent");
+ card = qeth_get_card_from_dev(dev);
+ if (!card)
+ return NOTIFY_DONE;
+ if (card->options.layer2)
+ return NOTIFY_DONE;
+
+ addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
+ if (addr != NULL) {
+ addr->u.a4.addr = ifa->ifa_address;
+ addr->u.a4.mask = ifa->ifa_mask;
+ addr->type = QETH_IP_TYPE_NORMAL;
+ } else
+ goto out;
+
+ switch(event) {
+ case NETDEV_UP:
+ if (!qeth_add_ip(card, addr))
+ kfree(addr);
+ break;
+ case NETDEV_DOWN:
+ if (!qeth_delete_ip(card, addr))
+ kfree(addr);
+ break;
+ default:
+ break;
+ }
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+out:
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block qeth_ip_notifier = {
+ qeth_ip_event,
+ 0
+};
+
+#ifdef CONFIG_QETH_IPV6
+/**
+ * IPv6 event handler
+ */
+static int
+qeth_ip6_event(struct notifier_block *this,
+ unsigned long event,void *ptr)
+{
+
+ struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
+ struct net_device *dev = (struct net_device *)ifa->idev->dev;
+ struct qeth_ipaddr *addr;
+ struct qeth_card *card;
+
+ QETH_DBF_TEXT(trace,3,"ip6event");
+
+ card = qeth_get_card_from_dev(dev);
+ if (!card)
+ return NOTIFY_DONE;
+ if (!qeth_is_supported(card, IPA_IPV6))
+ return NOTIFY_DONE;
+
+ addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
+ if (addr != NULL) {
+ memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
+ addr->u.a6.pfxlen = ifa->prefix_len;
+ addr->type = QETH_IP_TYPE_NORMAL;
+ } else
+ goto out;
+
+ switch(event) {
+ case NETDEV_UP:
+ if (!qeth_add_ip(card, addr))
+ kfree(addr);
+ break;
+ case NETDEV_DOWN:
+ if (!qeth_delete_ip(card, addr))
+ kfree(addr);
+ break;
+ default:
+ break;
+ }
+ if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
+ schedule_work(&card->kernel_thread_starter);
+out:
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block qeth_ip6_notifier = {
+ qeth_ip6_event,
+ 0
+};
+#endif
+
+static int
+qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
+{
+
+ struct device *entry;
+ struct qeth_card *card;
+
+ down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
+ list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
+ driver_list) {
+ card = (struct qeth_card *) entry->driver_data;
+ qeth_clear_ip_list(card, 0, 0);
+ qeth_qdio_clear_card(card, 0);
+ }
+ up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
+ return NOTIFY_DONE;
+}
+
+
+static struct notifier_block qeth_reboot_notifier = {
+ qeth_reboot_event,
+ 0
+};
+
+static int
+qeth_register_notifiers(void)
+{
+ int r;
+
+ QETH_DBF_TEXT(trace,5,"regnotif");
+ if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
+ return r;
+ if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
+ goto out_reboot;
+#ifdef CONFIG_QETH_IPV6
+ if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
+ goto out_ipv4;
+#endif
+ return 0;
+
+#ifdef CONFIG_QETH_IPV6
+out_ipv4:
+ unregister_inetaddr_notifier(&qeth_ip_notifier);
+#endif
+out_reboot:
+ unregister_reboot_notifier(&qeth_reboot_notifier);
+ return r;
+}
+
+/**
+ * unregister all event notifiers
+ */
+static void
+qeth_unregister_notifiers(void)
+{
+
+ QETH_DBF_TEXT(trace,5,"unregnot");
+ BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
+ BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
+#ifdef CONFIG_QETH_IPV6
+ BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
+#endif /* QETH_IPV6 */
+
+}
+
+#ifdef CONFIG_QETH_IPV6
+static int
+qeth_ipv6_init(void)
+{
+ qeth_old_arp_constructor = arp_tbl.constructor;
+ write_lock(&arp_tbl.lock);
+ arp_tbl.constructor = qeth_arp_constructor;
+ write_unlock(&arp_tbl.lock);
+
+ arp_direct_ops = (struct neigh_ops*)
+ kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
+ if (!arp_direct_ops)
+ return -ENOMEM;
+
+ memcpy(arp_direct_ops, &arp_direct_ops_template,
+ sizeof(struct neigh_ops));
+
+ return 0;
+}
+
+static void
+qeth_ipv6_uninit(void)
+{
+ write_lock(&arp_tbl.lock);
+ arp_tbl.constructor = qeth_old_arp_constructor;
+ write_unlock(&arp_tbl.lock);
+ kfree(arp_direct_ops);
+}
+#endif /* CONFIG_QETH_IPV6 */
+
+static void
+qeth_sysfs_unregister(void)
+{
+ qeth_remove_driver_attributes();
+ ccw_driver_unregister(&qeth_ccw_driver);
+ ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
+ s390_root_dev_unregister(qeth_root_dev);
+}
+/**
+ * register qeth at sysfs
+ */
+static int
+qeth_sysfs_register(void)
+{
+ int rc=0;
+
+ rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
+ if (rc)
+ return rc;
+ rc = ccw_driver_register(&qeth_ccw_driver);
+ if (rc)
+ return rc;
+ rc = qeth_create_driver_attributes();
+ if (rc)
+ return rc;
+ qeth_root_dev = s390_root_dev_register("qeth");
+ if (IS_ERR(qeth_root_dev)) {
+ rc = PTR_ERR(qeth_root_dev);
+ return rc;
+ }
+ return 0;
+}
+
+/***
+ * init function
+ */
+static int __init
+qeth_init(void)
+{
+ int rc=0;
+
+ qeth_eyecatcher();
+ PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
+ version, VERSION_QETH_C, VERSION_QETH_H,
+ VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
+ VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
+ VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
+ QETH_VERSION_VLAN);
+
+ INIT_LIST_HEAD(&qeth_card_list.list);
+ INIT_LIST_HEAD(&qeth_notify_list);
+ spin_lock_init(&qeth_notify_lock);
+ rwlock_init(&qeth_card_list.rwlock);
+
+ if (qeth_register_dbf_views())
+ goto out_err;
+ if (qeth_sysfs_register())
+ goto out_sysfs;
+
+#ifdef CONFIG_QETH_IPV6
+ if (qeth_ipv6_init()) {
+ PRINT_ERR("Out of memory during ipv6 init.\n");
+ goto out_sysfs;
+ }
+#endif /* QETH_IPV6 */
+ if (qeth_register_notifiers())
+ goto out_ipv6;
+ if (qeth_create_procfs_entries())
+ goto out_notifiers;
+
+ return rc;
+
+out_notifiers:
+ qeth_unregister_notifiers();
+out_ipv6:
+#ifdef CONFIG_QETH_IPV6
+ qeth_ipv6_uninit();
+#endif /* QETH_IPV6 */
+out_sysfs:
+ qeth_sysfs_unregister();
+ qeth_unregister_dbf_views();
+out_err:
+ PRINT_ERR("Initialization failed");
+ return rc;
+}
+
+static void
+__exit qeth_exit(void)
+{
+ struct qeth_card *card, *tmp;
+ unsigned long flags;
+
+ QETH_DBF_TEXT(trace,1, "cleanup.");
+
+ /*
+ * Weed would not need to clean up our devices here, because the
+ * common device layer calls qeth_remove_device for each device
+ * as soon as we unregister our driver (done in qeth_sysfs_unregister).
+ * But we do cleanup here so we can do a "soft" shutdown of our cards.
+ * qeth_remove_device called by the common device layer would otherwise
+ * do a "hard" shutdown (card->use_hard_stop is set to one in
+ * qeth_remove_device).
+ */
+again:
+ read_lock_irqsave(&qeth_card_list.rwlock, flags);
+ list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
+ read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
+ qeth_set_offline(card->gdev);
+ qeth_remove_device(card->gdev);
+ goto again;
+ }
+ read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
+#ifdef CONFIG_QETH_IPV6
+ qeth_ipv6_uninit();
+#endif
+ qeth_unregister_notifiers();
+ qeth_remove_procfs_entries();
+ qeth_sysfs_unregister();
+ qeth_unregister_dbf_views();
+ printk("qeth: removed\n");
+}
+
+EXPORT_SYMBOL(qeth_eyecatcher);
+module_init(qeth_init);
+module_exit(qeth_exit);
+MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
+MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
+ "Copyright 2000,2003 IBM Corporation\n");
+
+MODULE_LICENSE("GPL");