+++ /dev/null
-/*
- * linux/drivers/s390/net/qeth_main.c
- *
- * 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 (fpavlic@de.ibm.com) and
- * Thomas Spatzier <tspat@de.ibm.com>
- *
- * 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.
- */
-
-
-#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 <asm/s390_rdev.h>
-
-#include "qeth.h"
-#include "qeth_mpc.h"
-#include "qeth_fs.h"
-#include "qeth_eddp.h"
-#include "qeth_tso.h"
-
-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);
-
-static struct lock_class_key qdio_out_skb_queue_key;
-
-/**
- * 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 int
-__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
-
-static struct qeth_ipaddr *
-qeth_get_addr_buffer(enum qeth_prot_versions);
-
-static void
-qeth_set_multicast_list(struct net_device *);
-
-static void
-qeth_setadp_promisc_mode(struct qeth_card *);
-
-static int
-qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr);
-
-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 = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
- if (!card)
- return NULL;
- QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
- 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, unsigned long intparm,
- 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);
- if (intparm == QETH_RCD_PARM) {
- struct qeth_card *card = CARD_FROM_CDEV(cdev);
-
- if (card && (card->data.ccwdev == cdev)) {
- card->data.state = CH_STATE_DOWN;
- wake_up(&card->wait_q);
- }
- }
- 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, intparm, 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) &&
- (intparm != QETH_RCD_PARM))
- 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);
- }
- if (intparm == QETH_RCD_PARM) {
- channel->state = CH_STATE_DOWN;
- goto out;
- }
- rc = qeth_get_problem(cdev,irb);
- if (rc) {
- qeth_schedule_recovery(card);
- goto out;
- }
- }
-
- if (intparm == QETH_RCD_PARM) {
- channel->state = CH_STATE_RCD_DONE;
- 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);
-
- qeth_irq_tasklet((unsigned long)channel);
- 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 *, int);
-
-static int
-__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
-{
- struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
- int rc = 0, rc2 = 0, rc3 = 0;
- enum qeth_card_states recover_flag;
-
- QETH_DBF_TEXT(setup, 3, "setoffl");
- QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
-
- if (card->dev && netif_carrier_ok(card->dev))
- netif_carrier_off(card->dev);
- recover_flag = card->state;
- if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
- PRINT_WARN("Stopping card %s interrupted by user!\n",
- CARD_BUS_ID(card));
- return -ERESTARTSYS;
- }
- rc = ccw_device_set_offline(CARD_DDEV(card));
- rc2 = ccw_device_set_offline(CARD_WDEV(card));
- rc3 = ccw_device_set_offline(CARD_RDEV(card));
- if (!rc)
- rc = (rc2) ? rc2 : rc3;
- if (rc)
- 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_set_offline(struct ccwgroup_device *cgdev)
-{
- return __qeth_set_offline(cgdev, 0);
-}
-
-static int
-qeth_threads_running(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;
-
- wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
-
- 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 (card->options.layer2) {
- if ((addr->type == todo->type) &&
- (memcmp(&addr->mac, &todo->mac,
- OSA_ADDR_LEN) == 0)) {
- found = 1;
- break;
- }
- continue;
- }
- 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 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 (card->options.layer2) {
- if ((tmp->type == addr->type) &&
- (tmp->is_multicast == addr->is_multicast) &&
- (memcmp(&tmp->mac, &addr->mac,
- OSA_ADDR_LEN) == 0)) {
- found = 1;
- break;
- }
- continue;
- }
- 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 (card->options.layer2)
- QETH_DBF_HEX(trace, 4, &addr->mac, 6);
- else 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 (card->options.layer2)
- QETH_DBF_HEX(trace, 4, &addr->mac, 6);
- else 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 void
-__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
-{
- struct qeth_ipaddr *addr, *tmp;
- int rc;
-again:
- list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
- if (addr->is_multicast) {
- list_del(&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);
- goto again;
- } else
- list_add(&addr->entry, &card->ip_list);
- }
- }
-}
-
-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 *);
-static void qeth_layer2_add_multicast(struct qeth_card *);
-#ifdef CONFIG_QETH_IPV6
-static void qeth_add_multicast_ipv6(struct qeth_card *);
-#endif
-
-static 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 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_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,1);
- rc = __qeth_set_online(card->gdev,1);
- /* don't run another scheduled recovery */
- qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
- qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
- 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));
- 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 work_struct *work)
-{
- struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
- 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_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;
- if (card->info.type == QETH_CARD_TYPE_OSN)
- card->options.layer2 = 1;
- else
- card->options.layer2 = 0;
- card->options.performance_stats = 0;
- card->options.rx_sg_cb = QETH_RX_SG_CB;
-}
-
-/**
- * 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->lock);
- 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, qeth_start_kernel_thread);
- 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");
-
- card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
- card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
- 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];
- card->qdio.no_out_queues = known_devices[i][8];
- card->info.is_multicast_different = known_devices[i][9];
- 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;
- }
- 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;
-
- QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
-
- 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];
- 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;
-
- 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;
- }
- if ((rc = qeth_setup_card(card))){
- QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
- put_device(dev);
- qeth_free_card(card);
- return rc;
- }
- rc = qeth_create_device_attributes(dev);
- if (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_read_conf_data(struct qeth_card *card, void **buffer,
- int *length)
-{
- struct ciw *ciw;
- char *rcd_buf;
- int ret;
- struct qeth_channel *channel = &card->data;
- unsigned long flags;
-
- /*
- * scan for RCD command in extended SenseID data
- */
- ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
- if (!ciw || ciw->cmd == 0)
- return -EOPNOTSUPP;
- rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
- if (!rcd_buf)
- return -ENOMEM;
-
- channel->ccw.cmd_code = ciw->cmd;
- channel->ccw.cda = (__u32) __pa (rcd_buf);
- channel->ccw.count = ciw->count;
- channel->ccw.flags = CCW_FLAG_SLI;
- channel->state = CH_STATE_RCD;
- spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
- ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
- QETH_RCD_PARM, LPM_ANYPATH, 0,
- QETH_RCD_TIMEOUT);
- spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
- if (!ret)
- wait_event(card->wait_q,
- (channel->state == CH_STATE_RCD_DONE ||
- channel->state == CH_STATE_DOWN));
- if (channel->state == CH_STATE_DOWN)
- ret = -EIO;
- else
- channel->state = CH_STATE_DOWN;
- if (ret) {
- kfree(rcd_buf);
- *buffer = NULL;
- *length = 0;
- } else {
- *length = ciw->count;
- *buffer = rcd_buf;
- }
- return ret;
-}
-
-static int
-qeth_get_unitaddr(struct qeth_card *card)
-{
- int length;
- char *prcd;
- int rc;
-
- QETH_DBF_TEXT(setup, 2, "getunit");
- rc = qeth_read_conf_data(card, (void **) &prcd, &length);
- if (rc) {
- PRINT_ERR("qeth_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']));
- kfree(prcd);
- 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;
-
- 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_cmpxchg(&channel->irq_pending, 0, 1) == 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_cmpxchg(&channel->irq_pending, 0, 1) == 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))) {
- if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
- PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
- "adapter exclusively used by another host\n",
- CARD_WDEV_ID(card));
- else
- 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))) {
- if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
- PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
- "adapter exclusively used by another host\n",
- CARD_RDEV_ID(card));
- else
- 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);
- 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 = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
- if (reply){
- atomic_set(&reply->refcnt, 1);
- atomic_set(&reply->received, 0);
- 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_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
-{
- int rc;
- int com;
- char * ipa_name;
-
- com = cmd->hdr.command;
- rc = cmd->hdr.return_code;
- ipa_name = qeth_get_ipa_cmd_name(com);
-
- PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
- QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
-}
-
-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)) {
- if (cmd->hdr.return_code)
- qeth_issue_ipa_msg(cmd, card);
- 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;
- if (card->dev && netif_carrier_ok(card->dev))
- 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);
- netif_carrier_on(card->dev);
- qeth_schedule_recovery(card);
- return NULL;
- case IPA_CMD_MODCCID:
- return cmd;
- 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;
- atomic_inc(&reply->received);
- 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;
- /*in case of OSN : check if cmd is set */
- if (card->info.type == QETH_CARD_TYPE_OSN &&
- cmd &&
- cmd->hdr.command != IPA_CMD_STARTLAN &&
- card->osn_info.assist_cb != NULL) {
- card->osn_info.assist_cb(card->dev, cmd);
- 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 {
- atomic_inc(&reply->received);
- 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 void
-qeth_prepare_control_data(struct qeth_card *card, int len,
- struct qeth_cmd_buffer *iob)
-{
- qeth_setup_ccw(&card->write,iob->data,len);
- iob->callback = qeth_release_buffer;
-
- 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);
- QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
-}
-
-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 = NULL;
- unsigned long timeout;
-
- QETH_DBF_TEXT(trace, 2, "sendctl");
-
- 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_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);
-
- while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
- qeth_prepare_control_data(card, len, iob);
-
- if (IS_IPA(iob->data))
- timeout = jiffies + QETH_IPA_TIMEOUT;
- else
- timeout = jiffies + QETH_TIMEOUT;
-
- 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;
- }
- while (!atomic_read(&reply->received)) {
- if (time_after(jiffies, timeout)) {
- spin_lock_irqsave(&reply->card->lock, flags);
- list_del_init(&reply->list);
- spin_unlock_irqrestore(&reply->card->lock, flags);
- reply->rc = -ETIME;
- atomic_inc(&reply->received);
- wake_up(&reply->wait_q);
- }
- cpu_relax();
- };
- rc = reply->rc;
- qeth_put_reply(reply);
- return rc;
-}
-
-static int
-qeth_osn_send_control_data(struct qeth_card *card, int len,
- struct qeth_cmd_buffer *iob)
-{
- unsigned long flags;
- int rc = 0;
-
- QETH_DBF_TEXT(trace, 5, "osndctrd");
-
- wait_event(card->wait_q,
- atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
- qeth_prepare_control_data(card, len, iob);
- QETH_DBF_TEXT(trace, 6, "osnoirqp");
- 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_osn_send_control_data: "
- "ccw_device_start rc = %i\n", rc);
- QETH_DBF_TEXT_(trace, 2, " err%d", rc);
- qeth_release_buffer(iob->channel, iob);
- atomic_set(&card->write.irq_pending, 0);
- wake_up(&card->wait_q);
- }
- return rc;
-}
-
-static inline void
-qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
- char prot_type)
-{
- memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
- 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);
-}
-
-static int
-qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
- int data_len)
-{
- u16 s1, s2;
-
- QETH_DBF_TEXT(trace,4,"osndipa");
-
- qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
- s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
- s2 = (u16)data_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_osn_send_control_data(card, s1, iob);
-}
-
-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");
-
- if (card->options.layer2)
- if (card->info.type == QETH_CARD_TYPE_OSN)
- prot_type = QETH_PROT_OSN2;
- else
- prot_type = QETH_PROT_LAYER2;
- else
- prot_type = QETH_PROT_TCPIP;
- qeth_prepare_ipa_cmd(card,iob,prot_type);
- 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)
- if (card->info.type == QETH_CARD_TYPE_OSN)
- prot_type = QETH_PROT_OSN2;
- else
- 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 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;
- struct ccw_dev_id dev_id;
-
- 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);
-
- ccw_device_get_id(CARD_DDEV(card), &dev_id);
- memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 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_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
- unsigned int siga_error, const char *dbftext)
-{
- if (qdio_error || siga_error) {
- QETH_DBF_TEXT(trace, 2, dbftext);
- QETH_DBF_TEXT(qerr, 2, dbftext);
- QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
- buf->element[15].flags & 0xff);
- QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
- buf->element[14].flags & 0xff);
- QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
- QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
- return 1;
- }
- return 0;
-}
-
-static struct sk_buff *
-qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
-{
- struct sk_buff* skb;
- int add_len;
-
- add_len = 0;
- if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
- add_len = sizeof(struct qeth_hdr);
-#ifdef CONFIG_QETH_VLAN
- else
- add_len = VLAN_HLEN;
-#endif
- skb = dev_alloc_skb(length + add_len);
- if (skb && add_len)
- skb_reserve(skb, add_len);
- return skb;
-}
-
-static inline int
-qeth_create_skb_frag(struct qdio_buffer_element *element,
- struct sk_buff **pskb,
- int offset, int *pfrag, int data_len)
-{
- struct page *page = virt_to_page(element->addr);
- if (*pfrag == 0) {
- /* the upper protocol layers assume that there is data in the
- * skb itself. Copy a small amount (64 bytes) to make them
- * happy. */
- *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
- if (!(*pskb))
- return -ENOMEM;
- skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
- if (data_len <= 64) {
- memcpy(skb_put(*pskb, data_len), element->addr + offset,
- data_len);
- } else {
- get_page(page);
- memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
- skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
- data_len - 64);
- (*pskb)->data_len += data_len - 64;
- (*pskb)->len += data_len - 64;
- (*pskb)->truesize += data_len - 64;
- }
- } else {
- get_page(page);
- skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
- (*pskb)->data_len += data_len;
- (*pskb)->len += data_len;
- (*pskb)->truesize += data_len;
- }
- (*pfrag)++;
- return 0;
-}
-
-static inline struct qeth_buffer_pool_entry *
-qeth_find_free_buffer_pool_entry(struct qeth_card *card)
-{
- struct list_head *plh;
- struct qeth_buffer_pool_entry *entry;
- int i, free;
- struct page *page;
-
- if (list_empty(&card->qdio.in_buf_pool.entry_list))
- return NULL;
-
- list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
- entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
- free = 1;
- for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
- if (page_count(virt_to_page(entry->elements[i])) > 1) {
- free = 0;
- break;
- }
- }
- if (free) {
- list_del_init(&entry->list);
- return entry;
- }
- }
-
- /* no free buffer in pool so take first one and swap pages */
- entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
- struct qeth_buffer_pool_entry, list);
- for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
- if (page_count(virt_to_page(entry->elements[i])) > 1) {
- page = alloc_page(GFP_ATOMIC|GFP_DMA);
- if (!page) {
- return NULL;
- } else {
- free_page((unsigned long)entry->elements[i]);
- entry->elements[i] = page_address(page);
- if (card->options.performance_stats)
- card->perf_stats.sg_alloc_page_rx++;
- }
- }
- }
- list_del_init(&entry->list);
- return entry;
-}
-
-static 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;
- int use_rx_sg = 0;
- int frag = 0;
-
- 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)
- if (card->info.type == QETH_CARD_TYPE_OSN)
- skb_len = (*hdr)->hdr.osn.pdu_length;
- else
- skb_len = (*hdr)->hdr.l2.pkt_length;
- else
- skb_len = (*hdr)->hdr.l3.length;
-
- if (!skb_len)
- return NULL;
- if ((skb_len >= card->options.rx_sg_cb) &&
- (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
- (!atomic_read(&card->force_alloc_skb))) {
- use_rx_sg = 1;
- } else {
- if (card->options.fake_ll) {
- if (card->dev->type == ARPHRD_IEEE802_TR) {
- if (!(skb = qeth_get_skb(skb_len +
- QETH_FAKE_LL_LEN_TR, *hdr)))
- goto no_mem;
- skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
- } else {
- if (!(skb = qeth_get_skb(skb_len +
- QETH_FAKE_LL_LEN_ETH, *hdr)))
- goto no_mem;
- skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
- }
- } else {
- skb = qeth_get_skb(skb_len, *hdr);
- if (!skb)
- goto no_mem;
- }
- }
-
- data_ptr = element->addr + offset;
- while (skb_len) {
- data_len = min(skb_len, (int)(element->length - offset));
- if (data_len) {
- if (use_rx_sg) {
- if (qeth_create_skb_frag(element, &skb, offset,
- &frag, data_len))
- goto no_mem;
- } else {
- 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;
- if (use_rx_sg && card->options.performance_stats) {
- card->perf_stats.sg_skbs_rx++;
- card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
- }
- 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 __be16
-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_reset_mac_header(skb);
- 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 void
-qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_hdr *hdr)
-{
- struct trh_hdr *fake_hdr;
- struct trllc *fake_llc;
- struct iphdr *ip_hdr;
-
- QETH_DBF_TEXT(trace,5,"skbfktr");
- skb_set_mac_header(skb, (int)-QETH_FAKE_LL_LEN_TR);
- /* this is a fake ethernet header */
- fake_hdr = tr_hdr(skb);
-
- /* 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->daddr, card->dev, 0);
- break;
-#endif /* CONFIG_QETH_IPV6 */
- case __constant_htons(ETH_P_IP):
- ip_hdr = (struct iphdr *)skb->data;
- ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
- break;
- default:
- memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
- }
- break;
- case PACKET_BROADCAST:
- memset(fake_hdr->daddr, 0xff, TR_ALEN);
- break;
- default:
- memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
- }
- /* the source MAC address */
- if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
- memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
- else
- memset(fake_hdr->saddr, 0, TR_ALEN);
- fake_hdr->rcf=0;
- fake_llc = (struct trllc*)&(fake_hdr->rcf);
- fake_llc->dsap = EXTENDED_SAP;
- fake_llc->ssap = EXTENDED_SAP;
- fake_llc->llc = UI_CMD;
- fake_llc->protid[0] = 0;
- fake_llc->protid[1] = 0;
- fake_llc->protid[2] = 0;
- fake_llc->ethertype = ETH_P_IP;
-}
-
-static void
-qeth_rebuild_skb_fake_ll_eth(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,"skbfketh");
- skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
- /* this is a fake ethernet header */
- fake_hdr = eth_hdr(skb);
-
- /* 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;
- 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_fake_ll(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_hdr *hdr)
-{
- if (card->dev->type == ARPHRD_IEEE802_TR)
- qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
- else
- qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
-}
-
-static inline void
-qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_hdr *hdr)
-{
- 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;
- *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
-}
-
-static __u16
-qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_hdr *hdr)
-{
- unsigned short vlan_id = 0;
-#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 0;
- }
-#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;
- }
-
- if (hdr->hdr.l3.ext_flags &
- (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
- vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
- hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
- }
-
- if (card->options.fake_ll)
- qeth_rebuild_skb_fake_ll(card, skb, hdr);
- else
- skb_reset_mac_header(skb);
- 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;
- }
- return vlan_id;
-}
-
-static 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;
- if (card->options.performance_stats)
- card->perf_stats.bufs_rec++;
- 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)
- qeth_layer2_rebuild_skb(card, skb, hdr);
- else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
- vlan_tag = qeth_rebuild_skb(card, skb, hdr);
- else if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN) {
- skb_push(skb, sizeof(struct qeth_hdr));
- skb_copy_to_linear_data(skb, hdr,
- sizeof(struct qeth_hdr));
- } else { /* unknown header type */
- dev_kfree_skb_any(skb);
- QETH_DBF_TEXT(trace, 3, "inbunkno");
- QETH_DBF_HEX(control, 3, hdr, QETH_DBF_CONTROL_LEN);
- continue;
- }
- /* is device UP ? */
- if (!(card->dev->flags & IFF_UP)){
- dev_kfree_skb_any(skb);
- continue;
- }
- if (card->info.type == QETH_CARD_TYPE_OSN)
- rxrc = card->osn_info.data_cb(skb);
- else
-#ifdef CONFIG_QETH_VLAN
- if (vlan_tag)
- if (card->vlangrp)
- vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
- else {
- dev_kfree_skb_any(skb);
- continue;
- }
- else
-#endif
- rxrc = netif_rx(skb);
- card->dev->last_rx = jiffies;
- card->stats.rx_packets++;
- card->stats.rx_bytes += skb->len;
- }
-}
-
-static int
-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_find_free_buffer_pool_entry(card);
- if (!pool_entry)
- return 1;
- /*
- * 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;
- return 0;
-}
-
-static 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 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;
- int newcount = 0;
-
- 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) {
- if (qeth_init_input_buffer(card,
- &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
- break;
- } else {
- newcount++;
- }
- }
-
- if (newcount < count) {
- /* we are in memory shortage so we switch back to
- traditional skb allocation and drop packages */
- if (!atomic_read(&card->force_alloc_skb) &&
- net_ratelimit())
- PRINT_WARN("Switch to alloc skb\n");
- atomic_set(&card->force_alloc_skb, 3);
- count = newcount;
- } else {
- if ((atomic_read(&card->force_alloc_skb) == 1) &&
- net_ratelimit())
- PRINT_WARN("Switch to sg\n");
- atomic_add_unless(&card->force_alloc_skb, -1, 0);
- }
-
- /*
- * 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
- */
- if (card->options.performance_stats) {
- card->perf_stats.inbound_do_qdio_cnt++;
- card->perf_stats.inbound_do_qdio_start_time =
- qeth_get_micros();
- }
- rc = do_QDIO(CARD_DDEV(card),
- QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
- 0, queue->next_buf_to_init, count, NULL);
- if (card->options.performance_stats)
- card->perf_stats.inbound_do_qdio_time +=
- qeth_get_micros() -
- card->perf_stats.inbound_do_qdio_start_time;
- 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;
- if (card->options.performance_stats) {
- card->perf_stats.inbound_cnt++;
- card->perf_stats.inbound_start_time = qeth_get_micros();
- }
- 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_qdio_errors(buffer->buffer,
- qdio_err, siga_err,"qinerr")))
- 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);
- }
- if (card->options.performance_stats)
- card->perf_stats.inbound_time += qeth_get_micros() -
- card->perf_stats.inbound_start_time;
-}
-
-static int
-qeth_handle_send_error(struct qeth_card *card,
- struct qeth_qdio_out_buffer *buffer,
- unsigned int qdio_err, unsigned int siga_err)
-{
- int sbalf15 = buffer->buffer->element[15].flags & 0xff;
- int cc = siga_err & 3;
-
- QETH_DBF_TEXT(trace, 6, "hdsnderr");
- qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
- 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:
- default:
- QETH_DBF_TEXT(trace, 1, "SIGAcc3");
- QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
-}
-
-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;
- unsigned int qdio_flags;
-
- 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 that 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;
- if (queue->card->options.performance_stats) {
- queue->card->perf_stats.outbound_do_qdio_cnt++;
- queue->card->perf_stats.outbound_do_qdio_start_time =
- qeth_get_micros();
- }
- qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
- if (under_int)
- qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
- if (atomic_read(&queue->set_pci_flags_count))
- qdio_flags |= QDIO_FLAG_PCI_OUT;
- rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
- queue->queue_no, index, count, NULL);
- if (queue->card->options.performance_stats)
- queue->card->perf_stats.outbound_do_qdio_time +=
- qeth_get_micros() -
- queue->card->perf_stats.outbound_do_qdio_start_time;
- if (rc){
- QETH_DBF_TEXT(trace, 2, "flushbuf");
- QETH_DBF_TEXT_(trace, 2, " err%d", rc);
- QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
- 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);
- if (queue->card->options.performance_stats)
- queue->card->perf_stats.bufs_sent += count;
-}
-
-/*
- * Switched to packing state if the number of used buffers on a queue
- * reaches a certain limit.
- */
-static 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");
- if (queue->card->options.performance_stats)
- queue->card->perf_stats.sc_dp_p++;
- 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 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");
- if (queue->card->options.performance_stats)
- queue->card->perf_stats.sc_p_dp++;
- 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 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 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_xchg(&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);
- if (queue->card->options.performance_stats &&
- q_was_packing)
- queue->card->perf_stats.bufs_sent_pack +=
- flush_cnt;
- 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_TEXT(trace, 2, "achkcond");
- QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
- QETH_DBF_TEXT_(trace, 2, "%08x", status);
- netif_stop_queue(card->dev);
- qeth_schedule_recovery(card);
- return;
- }
- }
- if (card->options.performance_stats) {
- card->perf_stats.outbound_handler_cnt++;
- card->perf_stats.outbound_handler_start_time =
- qeth_get_micros();
- }
- 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);
- if (card->options.performance_stats)
- card->perf_stats.outbound_handler_time += qeth_get_micros() -
- card->perf_stats.outbound_handler_start_time;
-}
-
-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 *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
- *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
- *((unsigned int *) (¶m_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 *) (¶m_field[20])) = card->info.blkt.time_total;
- *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
- *((unsigned int *) (¶m_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|GFP_DMA);
- 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 (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
- QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
- return 0;
-
- card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
- GFP_KERNEL|GFP_DMA);
- if (!card->qdio.in_q)
- goto out_nomem;
- 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))
- goto out_freeinq;
- /* outbound */
- card->qdio.out_qs =
- kmalloc(card->qdio.no_out_queues *
- sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
- if (!card->qdio.out_qs)
- goto out_freepool;
- for (i = 0; i < card->qdio.no_out_queues; ++i) {
- card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
- GFP_KERNEL|GFP_DMA);
- if (!card->qdio.out_qs[i])
- goto out_freeoutq;
- 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);
- lockdep_set_class(
- &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
- &qdio_out_skb_queue_key);
- INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
- }
- }
- return 0;
-
-out_freeoutq:
- while (i > 0)
- kfree(card->qdio.out_qs[--i]);
- kfree(card->qdio.out_qs);
- card->qdio.out_qs = NULL;
-out_freepool:
- qeth_free_buffer_pool(card);
-out_freeinq:
- kfree(card->qdio.in_q);
- card->qdio.in_q = NULL;
-out_nomem:
- atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
- return -ENOMEM;
-}
-
-static void
-qeth_free_qdio_buffers(struct qeth_card *card)
-{
- int i, j;
-
- QETH_DBF_TEXT(trace, 2, "freeqdbf");
- if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
- QETH_QDIO_UNINITIALIZED)
- return;
- kfree(card->qdio.in_q);
- card->qdio.in_q = NULL;
- /* inbound buffer pool */
- qeth_free_buffer_pool(card);
- /* free outbound qdio_qs */
- if (card->qdio.out_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.out_qs = NULL;
- }
-}
-
-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 && 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");
- atomic_set(&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);
-}
-
-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 = 0;
-
- QETH_DBF_TEXT(setup, 2, "qdioest");
-
- qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
- GFP_KERNEL);
- if (!qib_param_field)
- return -ENOMEM;
-
- 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 (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
- QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
- if ((rc = qdio_initialize(&init_data)))
- atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
-
- 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 rc1 = 0, rc2=0, rc3 = 0;
-
- QETH_DBF_TEXT(trace,3,"haltchs");
- rc1 = qeth_halt_channel(&card->read);
- rc2 = qeth_halt_channel(&card->write);
- rc3 = qeth_halt_channel(&card->data);
- if (rc1)
- return rc1;
- if (rc2)
- return rc2;
- return rc3;
-}
-static int
-qeth_clear_channels(struct qeth_card *card)
-{
- int rc1 = 0, rc2=0, rc3 = 0;
-
- QETH_DBF_TEXT(trace,3,"clearchs");
- rc1 = qeth_clear_channel(&card->read);
- rc2 = qeth_clear_channel(&card->write);
- rc3 = qeth_clear_channel(&card->data);
- if (rc1)
- return rc1;
- if (rc2)
- return rc2;
- return rc3;
-}
-
-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");
- switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
- QETH_QDIO_CLEANING)) {
- case 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);
- atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
- break;
- case QETH_QDIO_CLEANING:
- return rc;
- default:
- break;
- }
- 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);
- goto out_qdio;
- }
- if ((rc = qeth_cm_setup(card))){
- QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
- goto out_qdio;
- }
- if ((rc = qeth_ulp_enable(card))){
- QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
- goto out_qdio;
- }
- if ((rc = qeth_ulp_setup(card))){
- QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
- goto out_qdio;
- }
- if ((rc = qeth_alloc_qdio_buffers(card))){
- QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
- goto out_qdio;
- }
- 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_IQD);
- 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;
- case QETH_CARD_TYPE_OSN:
- dev = alloc_netdev(0, "osn%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, const void *daddr, const void *saddr,
- unsigned len)
-{
- if(dev->type == ARPHRD_IEEE802_TR){
- struct trh_hdr *hdr;
- hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
- memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
- memcpy(hdr->daddr, "FAKELL", TR_ALEN);
- return QETH_FAKE_LL_LEN_TR;
-
- } else {
- struct ethhdr *hdr;
- hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
- 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_ETH;
-
- }
-}
-
-static const struct header_ops qeth_fake_ops = {
- .create = qeth_fake_header,
- .parse = qeth_hard_header_parse,
-};
-
-static 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;
- }
- if (card->options.performance_stats) {
- card->perf_stats.outbound_cnt++;
- card->perf_stats.outbound_start_time = qeth_get_micros();
- }
- 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);
- if (card->options.performance_stats)
- card->perf_stats.outbound_time += qeth_get_micros() -
- card->perf_stats.outbound_start_time;
- 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 (vlan_group_get_device(vg, i) == dev){
- rc = QETH_VLAN_CARD;
- break;
- }
- }
- if (rc && !(vlan_dev_info(dev)->real_dev->priv == (void *)card))
- return 0;
-
-#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->info.type != QETH_CARD_TYPE_OSN) &&
- (card->options.layer2) &&
- (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
- QETH_DBF_TEXT(trace,4,"nomacadr");
- return -EPERM;
- }
- card->data.state = CH_STATE_UP;
- card->state = CARD_STATE_UP;
- card->dev->flags |= IFF_UP;
- netif_start_queue(dev);
-
- if (!card->lan_online && 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_tx_disable(dev);
- card->dev->flags &= ~IFF_UP;
- if (card->state == CARD_STATE_UP)
- card->state = CARD_STATE_SOFTSETUP;
- return 0;
-}
-
-static int
-qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
-{
- int cast_type = RTN_UNSPEC;
-
- if (card->info.type == QETH_CARD_TYPE_OSN)
- return cast_type;
-
- 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_network_header(skb)[24] == 0xff) ?
- RTN_MULTICAST : 0;
- else if (skb->protocol == ETH_P_IP)
- return ((skb_network_header(skb)[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;
- break;
- /* 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 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)) {
- const u8 tos = ip_hdr(skb)->tos;
-
- if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
- if (tos & IP_TOS_NOTIMPORTANT)
- return 3;
- if (tos & IP_TOS_HIGHRELIABILITY)
- return 2;
- if (tos & IP_TOS_HIGHTHROUGHPUT)
- return 1;
- if (tos & IP_TOS_LOWDELAY)
- return 0;
- }
- if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
- return 3 - (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 struct qeth_hdr *
-__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
-{
-#ifdef CONFIG_QETH_VLAN
- u16 *tag;
- 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);
- skb_copy_to_linear_data(skb, skb->data + 4, 4);
- skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
- skb_copy_to_linear_data_offset(skb, 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
- return ((struct qeth_hdr *)
- qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
-}
-
-static void
-__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
-{
- if (orig_skb != new_skb)
- dev_kfree_skb_any(new_skb);
-}
-
-static struct sk_buff *
-qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_hdr **hdr, int ipv)
-{
- struct sk_buff *new_skb, *new_skb2;
-
- QETH_DBF_TEXT(trace, 6, "prepskb");
- new_skb = skb;
- new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
- if (!new_skb)
- return NULL;
- new_skb2 = qeth_realloc_headroom(card, new_skb,
- sizeof(struct qeth_hdr));
- if (!new_skb2) {
- __qeth_free_new_skb(skb, new_skb);
- return NULL;
- }
- if (new_skb != skb)
- __qeth_free_new_skb(new_skb2, new_skb);
- new_skb = new_skb2;
- *hdr = __qeth_prepare_skb(card, new_skb, ipv);
- if (*hdr == NULL) {
- __qeth_free_new_skb(skb, new_skb);
- return NULL;
- }
- return new_skb;
-}
-
-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 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 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])) =
- ip_hdr(skb)->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,
- &ipv6_hdr(skb)->daddr, 16);
- }
- } else { /* passthrough */
- if((skb->dev->type == ARPHRD_IEEE802_TR) &&
- !memcmp(skb->data + sizeof(struct qeth_hdr) +
- sizeof(__u16), skb->dev->broadcast, 6)) {
- hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
- QETH_HDR_PASSTHRU;
- } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
- 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 void
-__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
- int is_tso, int *next_element_to_fill)
-{
- int length = skb->len;
- int length_here;
- int element;
- char *data;
- int first_lap ;
-
- element = *next_element_to_fill;
- data = skb->data;
- first_lap = (is_tso == 0 ? 1 : 0);
-
- 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 int
-qeth_fill_buffer(struct qeth_qdio_out_q *queue,
- struct qeth_qdio_out_buffer *buf,
- struct sk_buff *skb)
-{
- struct qdio_buffer *buffer;
- struct qeth_hdr_tso *hdr;
- int flush_cnt = 0, hdr_len, large_send = 0;
-
- QETH_DBF_TEXT(trace, 6, "qdfillbf");
-
- buffer = buf->buffer;
- atomic_inc(&skb->users);
- skb_queue_tail(&buf->skb_list, skb);
-
- hdr = (struct qeth_hdr_tso *) skb->data;
- /*check first on TSO ....*/
- if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
- int element = buf->next_element_to_fill;
-
- hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
- /*fill first buffer entry only with header information */
- buffer->element[element].addr = skb->data;
- buffer->element[element].length = hdr_len;
- buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
- buf->next_element_to_fill++;
- skb->data += hdr_len;
- skb->len -= hdr_len;
- large_send = 1;
- }
- if (skb_shinfo(skb)->nr_frags == 0)
- __qeth_fill_buffer(skb, buffer, large_send,
- (int *)&buf->next_element_to_fill);
- else
- __qeth_fill_buffer_frag(skb, buffer, large_send,
- (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");
- if (queue->card->options.performance_stats)
- queue->card->perf_stats.skbs_sent_pack++;
- 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 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_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
- QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
- /* ... 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)
- goto out;
- 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)
- goto out;
- 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;
-out:
- atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
- return -EBUSY;
-}
-
-static 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_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
- QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
- 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) {
- 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){
- 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){
- if (net_ratelimit())
- PRINT_WARN("eddp tx_dropped 1\n");
- 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");
- 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);
- else if (!atomic_read(&queue->set_pci_flags_count))
- atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
- /*
- * 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 */
- if (queue->card->options.performance_stats && do_pack)
- queue->card->perf_stats.bufs_sent_pack += flush_count;
-
- return rc;
-}
-
-static int
-qeth_get_elements_no(struct qeth_card *card, void *hdr,
- struct sk_buff *skb, int elems)
-{
- int elements_needed = 0;
-
- if (skb_shinfo(skb)->nr_frags > 0)
- elements_needed = (skb_shinfo(skb)->nr_frags + 1);
- if (elements_needed == 0)
- elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
- + skb->len) >> PAGE_SHIFT);
- if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
- PRINT_ERR("Invalid size of IP packet "
- "(Number=%d / Length=%d). Discarded.\n",
- (elements_needed+elems), skb->len);
- return 0;
- }
- return elements_needed;
-}
-
-static void qeth_tx_csum(struct sk_buff *skb)
-{
- int tlen;
-
- if (skb->protocol == htons(ETH_P_IP)) {
- tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
- switch (ip_hdr(skb)->protocol) {
- case IPPROTO_TCP:
- tcp_hdr(skb)->check = 0;
- tcp_hdr(skb)->check = csum_tcpudp_magic(
- ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
- tlen, ip_hdr(skb)->protocol,
- skb_checksum(skb, skb_transport_offset(skb),
- tlen, 0));
- break;
- case IPPROTO_UDP:
- udp_hdr(skb)->check = 0;
- udp_hdr(skb)->check = csum_tcpudp_magic(
- ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
- tlen, ip_hdr(skb)->protocol,
- skb_checksum(skb, skb_transport_offset(skb),
- tlen, 0));
- break;
- }
- } else if (skb->protocol == htons(ETH_P_IPV6)) {
- switch (ipv6_hdr(skb)->nexthdr) {
- case IPPROTO_TCP:
- tcp_hdr(skb)->check = 0;
- tcp_hdr(skb)->check = csum_ipv6_magic(
- &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
- ipv6_hdr(skb)->payload_len,
- ipv6_hdr(skb)->nexthdr,
- skb_checksum(skb, skb_transport_offset(skb),
- ipv6_hdr(skb)->payload_len, 0));
- break;
- case IPPROTO_UDP:
- udp_hdr(skb)->check = 0;
- udp_hdr(skb)->check = csum_ipv6_magic(
- &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
- ipv6_hdr(skb)->payload_len,
- ipv6_hdr(skb)->nexthdr,
- skb_checksum(skb, skb_transport_offset(skb),
- ipv6_hdr(skb)->payload_len, 0));
- break;
- }
- }
-}
-
-static 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 = NULL;
- int elements_needed = 0;
- enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
- struct qeth_eddp_context *ctx = NULL;
- int tx_bytes = skb->len;
- unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
- unsigned short tso_size = skb_shinfo(skb)->gso_size;
- struct sk_buff *new_skb, *new_skb2;
- int rc;
-
- QETH_DBF_TEXT(trace, 6, "sendpkt");
-
- new_skb = skb;
- if ((card->info.type == QETH_CARD_TYPE_OSN) &&
- (skb->protocol == htons(ETH_P_IPV6)))
- return -EPERM;
- cast_type = qeth_get_cast_type(card, skb);
- if ((cast_type == RTN_BROADCAST) &&
- (card->info.broadcast_capable == 0))
- return -EPERM;
- queue = card->qdio.out_qs
- [qeth_get_priority_queue(card, skb, ipv, cast_type)];
- if (!card->options.layer2) {
- ipv = qeth_get_ip_version(skb);
- if ((card->dev->header_ops == &qeth_fake_ops) && ipv) {
- new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
- if (!new_skb)
- return -ENOMEM;
- if(card->dev->type == ARPHRD_IEEE802_TR){
- skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
- } else {
- skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
- }
- }
- }
- if (skb_is_gso(skb))
- large_send = card->options.large_send;
- /* check on OSN device*/
- if (card->info.type == QETH_CARD_TYPE_OSN)
- hdr = (struct qeth_hdr *)new_skb->data;
- /*are we able to do TSO ? */
- if ((large_send == QETH_LARGE_SEND_TSO) &&
- (cast_type == RTN_UNSPEC)) {
- rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
- if (rc) {
- __qeth_free_new_skb(skb, new_skb);
- return rc;
- }
- elements_needed++;
- } else if (card->info.type != QETH_CARD_TYPE_OSN) {
- new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
- if (!new_skb2) {
- __qeth_free_new_skb(skb, new_skb);
- return -EINVAL;
- }
- if (new_skb != skb)
- __qeth_free_new_skb(new_skb2, new_skb);
- new_skb = new_skb2;
- qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
- }
- if (large_send == QETH_LARGE_SEND_EDDP) {
- ctx = qeth_eddp_create_context(card, new_skb, hdr,
- skb->sk->sk_protocol);
- if (ctx == NULL) {
- __qeth_free_new_skb(skb, new_skb);
- PRINT_WARN("could not create eddp context\n");
- return -EINVAL;
- }
- } else {
- int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
- elements_needed);
- if (!elems) {
- __qeth_free_new_skb(skb, new_skb);
- return -EINVAL;
- }
- elements_needed += elems;
- }
-
- if ((large_send == QETH_LARGE_SEND_NO) &&
- (skb->ip_summed == CHECKSUM_PARTIAL))
- qeth_tx_csum(new_skb);
-
- if (card->info.type != QETH_CARD_TYPE_IQD)
- rc = qeth_do_send_packet(card, queue, new_skb, hdr,
- elements_needed, ctx);
- else {
- if ((!card->options.layer2) &&
- (ipv == 0)) {
- __qeth_free_new_skb(skb, new_skb);
- return -EPERM;
- }
- rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
- elements_needed, ctx);
- }
- if (!rc) {
- card->stats.tx_packets++;
- card->stats.tx_bytes += tx_bytes;
- if (new_skb != skb)
- dev_kfree_skb_any(skb);
- if (card->options.performance_stats) {
- if (tso_size &&
- !(large_send == QETH_LARGE_SEND_NO)) {
- card->perf_stats.large_send_bytes += tx_bytes;
- card->perf_stats.large_send_cnt++;
- }
- if (nr_frags > 0) {
- card->perf_stats.sg_skbs_sent++;
- /* nr_frags + skb->data */
- card->perf_stats.sg_frags_sent +=
- nr_frags + 1;
- }
- }
- } else {
- card->stats.tx_dropped++;
- __qeth_free_new_skb(skb, new_skb);
- }
- if (ctx != NULL) {
- /* drop creator's reference */
- qeth_eddp_put_context(ctx);
- /* free skb; it's not referenced by a buffer */
- if (!rc)
- dev_kfree_skb_any(new_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_OSN) &&
- (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:
- break;
- }
- return rc;
-}
-
-
-static 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");
-
- /*
- * currently GuestLAN only supports the ARP assist function
- * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
- * thus we say EOPNOTSUPP for this ARP function
- */
- 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 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 __user *udata)
-{
- struct qeth_cmd_buffer *iob;
- struct qeth_arp_query_info qinfo = {0, };
- int tmp;
- int rc;
-
- QETH_DBF_TEXT(trace,3,"arpquery");
-
- 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 = kzalloc(qinfo.udata_len, GFP_KERNEL)))
- return -ENOMEM;
- 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);
- if (copy_to_user(udata, qinfo.udata, 4))
- rc = -EFAULT;
- } else {
- if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
- rc = -EFAULT;
- }
- 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 __user *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 = kzalloc(qinfo.udata_len, GFP_KERNEL))){
- kfree(ureq);
- return -ENOMEM;
- }
- 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 {
- if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
- rc = -EFAULT;
- }
-
- kfree(ureq);
- kfree(qinfo.udata);
- return rc;
-}
-
-static int
-qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
- unsigned long);
-
-static int
-qeth_default_setadapterparms_cb(struct qeth_card *card,
- struct qeth_reply *reply,
- unsigned long data);
-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 only supports the ARP assist function
- * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
- * thus we say EOPNOTSUPP for this ARP function
- */
- 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 only supports the ARP assist function
- * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
- * thus we say EOPNOTSUPP for this ARP function
- */
- 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 only supports the ARP assist function
- * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
- * thus we say EOPNOTSUPP for this ARP function
- */
- 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;
-
- if (card->info.type == QETH_CARD_TYPE_OSN)
- return -EPERM;
-
- 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;
- 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 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);
- lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
- 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");
-
- rcu_read_lock();
- in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, 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");
-
- in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, 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_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
-{
- if (card->options.layer2 || !card->vlangrp)
- return;
- qeth_free_vlan_addresses4(card, vid);
- qeth_free_vlan_addresses6(card, vid);
-}
-
-static int
-qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
- struct qeth_reply *reply,
- unsigned long data)
-{
- struct qeth_ipa_cmd *cmd;
-
- QETH_DBF_TEXT(trace, 2, "L2sdvcb");
- cmd = (struct qeth_ipa_cmd *) data;
- if (cmd->hdr.return_code) {
- PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
- "Continuing\n",cmd->data.setdelvlan.vlan_id,
- QETH_CARD_IFNAME(card), cmd->hdr.return_code);
- QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
- QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
- QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
- }
- return 0;
-}
-
-static int
-qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
- enum qeth_ipa_cmds ipacmd)
-{
- 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;
- return qeth_send_ipa_cmd(card, iob,
- qeth_layer2_send_setdelvlan_cb, NULL);
-}
-
-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 (vlan_group_get_device(card->vlangrp, 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_addresses(card, vid);
- vlan_group_set_device(card->vlangrp, 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
-/**
- * Examine hardware response to SET_PROMISC_MODE
- */
-static int
-qeth_setadp_promisc_mode_cb(struct qeth_card *card,
- struct qeth_reply *reply,
- unsigned long data)
-{
- struct qeth_ipa_cmd *cmd;
- struct qeth_ipacmd_setadpparms *setparms;
-
- QETH_DBF_TEXT(trace,4,"prmadpcb");
-
- cmd = (struct qeth_ipa_cmd *) data;
- setparms = &(cmd->data.setadapterparms);
-
- qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
- if (cmd->hdr.return_code) {
- QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
- setparms->data.mode = SET_PROMISC_MODE_OFF;
- }
- card->info.promisc_mode = setparms->data.mode;
- return 0;
-}
-/*
- * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
- */
-static void
-qeth_setadp_promisc_mode(struct qeth_card *card)
-{
- enum qeth_ipa_promisc_modes mode;
- struct net_device *dev = card->dev;
- struct qeth_cmd_buffer *iob;
- struct qeth_ipa_cmd *cmd;
-
- QETH_DBF_TEXT(trace, 4, "setprom");
-
- if (((dev->flags & IFF_PROMISC) &&
- (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
- (!(dev->flags & IFF_PROMISC) &&
- (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
- return;
- mode = SET_PROMISC_MODE_OFF;
- if (dev->flags & IFF_PROMISC)
- mode = SET_PROMISC_MODE_ON;
- QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
-
- iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
- sizeof(struct qeth_ipacmd_setadpparms));
- cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
- cmd->data.setadapterparms.data.mode = mode;
- qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
-}
-
-/**
- * set multicast address on card
- */
-static void
-qeth_set_multicast_list(struct net_device *dev)
-{
- struct qeth_card *card = (struct qeth_card *) dev->priv;
-
- if (card->info.type == QETH_CARD_TYPE_OSN)
- return ;
-
- QETH_DBF_TEXT(trace, 3, "setmulti");
- qeth_delete_mc_addresses(card);
- if (card->options.layer2) {
- qeth_layer2_add_multicast(card);
- goto out;
- }
- qeth_add_multicast_ipv4(card);
-#ifdef CONFIG_QETH_IPV6
- qeth_add_multicast_ipv6(card);
-#endif
-out:
- qeth_set_ip_addr_list(card);
- if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
- return;
- qeth_setadp_promisc_mode(card);
-}
-
-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 = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
- if (addr == NULL) {
- PRINT_WARN("Not enough memory to add address\n");
- return NULL;
- }
- addr->type = QETH_IP_TYPE_NORMAL;
- addr->proto = prot;
- return addr;
-}
-
-int
-qeth_osn_assist(struct net_device *dev,
- void *data,
- int data_len)
-{
- struct qeth_cmd_buffer *iob;
- struct qeth_card *card;
- int rc;
-
- QETH_DBF_TEXT(trace, 2, "osnsdmc");
- if (!dev)
- return -ENODEV;
- card = (struct qeth_card *)dev->priv;
- if (!card)
- return -ENODEV;
- if ((card->state != CARD_STATE_UP) &&
- (card->state != CARD_STATE_SOFTSETUP))
- return -ENODEV;
- iob = qeth_wait_for_buffer(&card->write);
- memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
- rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
- return rc;
-}
-
-static struct net_device *
-qeth_netdev_by_devno(unsigned char *read_dev_no)
-{
- struct qeth_card *card;
- struct net_device *ndev;
- unsigned char *readno;
- __u16 temp_dev_no, card_dev_no;
- char *endp;
- unsigned long flags;
-
- ndev = NULL;
- memcpy(&temp_dev_no, read_dev_no, 2);
- read_lock_irqsave(&qeth_card_list.rwlock, flags);
- list_for_each_entry(card, &qeth_card_list.list, list) {
- readno = CARD_RDEV_ID(card);
- readno += (strlen(readno) - 4);
- card_dev_no = simple_strtoul(readno, &endp, 16);
- if (card_dev_no == temp_dev_no) {
- ndev = card->dev;
- break;
- }
- }
- read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
- return ndev;
-}
-
-int
-qeth_osn_register(unsigned char *read_dev_no,
- struct net_device **dev,
- int (*assist_cb)(struct net_device *, void *),
- int (*data_cb)(struct sk_buff *))
-{
- struct qeth_card * card;
-
- QETH_DBF_TEXT(trace, 2, "osnreg");
- *dev = qeth_netdev_by_devno(read_dev_no);
- if (*dev == NULL)
- return -ENODEV;
- card = (struct qeth_card *)(*dev)->priv;
- if (!card)
- return -ENODEV;
- if ((assist_cb == NULL) || (data_cb == NULL))
- return -EINVAL;
- card->osn_info.assist_cb = assist_cb;
- card->osn_info.data_cb = data_cb;
- return 0;
-}
-
-void
-qeth_osn_deregister(struct net_device * dev)
-{
- struct qeth_card *card;
-
- QETH_DBF_TEXT(trace, 2, "osndereg");
- if (!dev)
- return;
- card = (struct qeth_card *)dev->priv;
- if (!card)
- return;
- card->osn_info.assist_cb = NULL;
- card->osn_info.data_cb = NULL;
- return;
-}
-
-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 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++) {
- struct net_device *netdev = vlan_group_get_device(vg, i);
- if (netdev == NULL ||
- !(netdev->flags & IFF_UP))
- continue;
- in_dev = in_dev_get(netdev);
- 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);
-}
-
-static void
-qeth_layer2_add_multicast(struct qeth_card *card)
-{
- struct qeth_ipaddr *ipm;
- struct dev_mc_list *dm;
-
- QETH_DBF_TEXT(trace,4,"L2addmc");
- for (dm = card->dev->mc_list; dm; dm = dm->next) {
- ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
- if (!ipm)
- continue;
- memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
- ipm->is_multicast = 1;
- if (!qeth_add_ip(card, ipm))
- kfree(ipm);
- }
-}
-
-#ifdef CONFIG_QETH_IPV6
-static 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++) {
- struct net_device *netdev = vlan_group_get_device(vg, i);
- if (netdev == NULL ||
- !(netdev->flags & IFF_UP))
- continue;
- in_dev = in6_dev_get(netdev);
- if (!in_dev)
- continue;
- read_lock_bh(&in_dev->lock);
- qeth_add_mc6(card,in_dev);
- read_unlock_bh(&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 (!qeth_is_supported(card, IPA_IPV6))
- return ;
- in6_dev = in6_dev_get(card->dev);
- if (in6_dev == NULL)
- return;
- read_lock_bh(&in6_dev->lock);
- qeth_add_mc6(card, in6_dev);
- qeth_add_vlan_mc6(card);
- read_unlock_bh(&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);
- card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
- cmd->hdr.return_code = -EIO;
- } else {
- card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
- 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) {
- QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
- cmd->hdr.return_code = -EIO;
- return 0;
- }
- card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
-
- return 0;
-}
-static int
-qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
-{
- QETH_DBF_TEXT(trace, 2, "L2Delmac");
- if (!(card->info.mac_bits & QETH_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;
- }
- if (card->info.type == QETH_CARD_TYPE_OSN) {
- PRINT_WARN("Setting MAC address on %s is not supported.\n",
- dev->name);
- QETH_DBF_TEXT(trace, 3, "setmcOSN");
- 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 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)
-{
- return (dev->features & NETIF_F_HW_CSUM) != 0;
-}
-
-static int
-qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
-{
- if (data)
- dev->features |= NETIF_F_HW_CSUM;
- else
- dev->features &= ~NETIF_F_HW_CSUM;
-
- return 0;
-}
-
-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_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr)
-{
- const struct qeth_card *card;
- const struct ethhdr *eth;
- struct net_device *dev = skb->dev;
-
- if (dev->type != ARPHRD_IEEE802_TR)
- return 0;
-
- card = qeth_get_card_from_dev(dev);
- if (card->options.layer2)
- goto haveheader;
-#ifdef CONFIG_QETH_IPV6
- /* cause of the manipulated arp constructor and the ARP
- flag for OSAE devices we have some nasty exceptions */
- if (card->info.type == QETH_CARD_TYPE_OSAE) {
- if (!card->options.fake_ll) {
- if ((skb->pkt_type==PACKET_OUTGOING) &&
- (skb->protocol==ETH_P_IPV6))
- goto haveheader;
- else
- return 0;
- } else {
- if ((skb->pkt_type==PACKET_OUTGOING) &&
- (skb->protocol==ETH_P_IP))
- return 0;
- else
- goto haveheader;
- }
- }
-#endif
- if (!card->options.fake_ll)
- return 0;
-haveheader:
- eth = eth_hdr(skb);
- memcpy(haddr, eth->h_source, ETH_ALEN);
- return ETH_ALEN;
-}
-
-static const struct header_ops qeth_null_ops = {
- .parse = qeth_hard_header_parse,
-};
-
-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
- if (qeth_get_netdev_flags(card) & IFF_NOARP)
- dev->header_ops = &qeth_null_ops;
-
-#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
- if (card->options.fake_ll &&
- (qeth_get_netdev_flags(card) & IFF_NOARP))
- dev->header_ops = &qeth_fake_ops;
-
- 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;
- if (card->info.type != QETH_CARD_TYPE_OSN)
- SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
- 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)
- /*FIXME:why do we have same values for dis and ena for osae??? */
- 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");
-
- atomic_set(&card->force_alloc_skb, 0);
-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_IQD);
- 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->header_ops = card->orig_header_ops;
- if (card->options.fake_ll &&
- (qeth_get_netdev_flags(card) & IFF_NOARP))
- card->dev->header_ops = &qeth_fake_ops;
- 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_IQD);
- rc = -ENODEV;
- QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
- goto out;
- }
- card->dev->priv = card;
- card->orig_header_ops = card->dev->header_ops;
- 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;
- if (!card->options.layer2 ||
- !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
- memcpy(card->dev->dev_addr,
- &cmd->data.setadapterparms.data.change_addr.addr,
- OSA_ADDR_LEN);
- card->info.mac_bits |= QETH_LAYER2_MAC_READ;
- }
- 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 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_query_setadapterparms(card);
- if (rc) {
- PRINT_WARN("could not query adapter parameters on device %s: "
- "x%x\n", CARD_BUS_ID(card), rc);
- }
-
- 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;
- /* Disable IPV6 support hard coded for Hipersockets */
- if(card->info.type == QETH_CARD_TYPE_IQD)
- card->options.ipa4.supported_funcs &= ~IPA_IPV6;
- } 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 /* (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 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");
-
- rc = qeth_send_startlan(card, QETH_PROT_IPV6);
- if (rc) {
- PRINT_ERR("IPv6 startlan failed on %s\n",
- QETH_CARD_IFNAME(card));
- return rc;
- }
- 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 |
- NETIF_F_HW_CSUM);
- }
- 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
-
- if (!qeth_is_supported(card, IPA_IPV6))
- return 0;
- qeth_correct_routing_type(card, &card->options.route6.type,
- QETH_PROT_IPV6);
-
- 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, enum qeth_large_send_types type)
-{
- int rc = 0;
-
- if (card->dev == NULL) {
- card->options.large_send = type;
- return 0;
- }
- if (card->state == CARD_STATE_UP)
- netif_tx_disable(card->dev);
- card->options.large_send = type;
- switch (card->options.large_send) {
- case QETH_LARGE_SEND_EDDP:
- card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
- NETIF_F_HW_CSUM;
- break;
- case QETH_LARGE_SEND_TSO:
- if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
- card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
- NETIF_F_HW_CSUM;
- } 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 |
- NETIF_F_HW_CSUM);
- 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 |
- NETIF_F_HW_CSUM);
- break;
- }
- if (card->state == CARD_STATE_UP)
- 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! "
- "Waiting for STARTLAN from card.\n",
- CARD_BUS_ID(card));
- card->lan_online = 0;
- }
- return rc;
- } else
- card->lan_online = 1;
- if (card->info.type==QETH_CARD_TYPE_OSN)
- goto out;
- qeth_set_large_send(card, card->options.large_send);
- 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 ((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_tx_disable(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 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 recovery_mode)
-{
- 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)) {
- if (recovery_mode &&
- card->info.type != QETH_CARD_TYPE_OSN) {
- qeth_stop(card->dev);
- } else {
- 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:
- if (card->info.guestlan) {
- 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)
- 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, int recovery_mode)
-{
- QETH_DBF_TEXT(setup ,2, "startag");
-
- if (recovery_mode &&
- card->info.type != QETH_CARD_TYPE_OSN) {
- qeth_open(card->dev);
- } else {
- 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 == 0)
- return;
- if (card->info.type == QETH_CARD_TYPE_OSN)
- return;
- 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));
- card->options.layer2 = 0;
- return;
- }
- 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, int recovery_mode)
-{
- 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;
- }
-
- 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;
- }
-
- if ((rc = qeth_init_qdio_queues(card))){
- QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
- goto out_remove;
- }
- card->state = CARD_STATE_SOFTSETUP;
- netif_carrier_on(card->dev);
-
- qeth_set_allowed_threads(card, 0xffffffff, 0);
- if (recover_flag == CARD_STATE_RECOVER)
- qeth_start_again(card, recovery_mode);
- qeth_notify_processes();
- return 0;
-out_remove:
- card->use_hard_stop = 1;
- qeth_stop_card(card, 0);
- 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 int
-qeth_set_online(struct ccwgroup_device *gdev)
-{
- return __qeth_set_online(gdev, 0);
-}
-
-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},
- {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
- {},
-};
-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_PAGES,
- QETH_DBF_SETUP_NR_AREAS,
- QETH_DBF_SETUP_LEN);
- qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
- QETH_DBF_MISC_PAGES,
- QETH_DBF_MISC_NR_AREAS,
- QETH_DBF_MISC_LEN);
- qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
- QETH_DBF_DATA_PAGES,
- QETH_DBF_DATA_NR_AREAS,
- QETH_DBF_DATA_LEN);
- qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
- QETH_DBF_CONTROL_PAGES,
- QETH_DBF_CONTROL_NR_AREAS,
- QETH_DBF_CONTROL_LEN);
- qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
- QETH_DBF_SENSE_PAGES,
- QETH_DBF_SENSE_NR_AREAS,
- QETH_DBF_SENSE_LEN);
- qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
- QETH_DBF_QERR_PAGES,
- QETH_DBF_QERR_NR_AREAS,
- QETH_DBF_QERR_LEN);
- qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
- QETH_DBF_TRACE_PAGES,
- 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,
- .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->header_ops == &qeth_fake_ops))
- goto out;
-
- rcu_read_lock();
- in_dev = __in_dev_get_rcu(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(&init_net, *(__be32 *) 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 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);
- qeth_set_ip_addr_list(card);
- 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);
- qeth_set_ip_addr_list(card);
-}
-
-/*
- * 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);
- qeth_set_ip_addr_list(card);
- 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);
- qeth_set_ip_addr_list(card);
-}
-
-/**
- * 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;
- }
- qeth_set_ip_addr_list(card);
-out:
- return NOTIFY_DONE;
-}
-
-static struct notifier_block qeth_ip_notifier = {
- qeth_ip_event,
- NULL,
-};
-
-#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;
- }
- qeth_set_ip_addr_list(card);
-out:
- return NOTIFY_DONE;
-}
-
-static struct notifier_block qeth_ip6_notifier = {
- qeth_ip6_event,
- NULL,
-};
-#endif
-
-static int
-__qeth_reboot_event_card(struct device *dev, void *data)
-{
- struct qeth_card *card;
-
- card = (struct qeth_card *) dev->driver_data;
- qeth_clear_ip_list(card, 0, 0);
- qeth_qdio_clear_card(card, 0);
- qeth_clear_qdio_buffers(card);
- return 0;
-}
-
-static int
-qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
-{
- int ret;
-
- ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
- __qeth_reboot_event_card);
- return ret ? NOTIFY_BAD : NOTIFY_DONE;
-}
-
-
-static struct notifier_block qeth_reboot_notifier = {
- qeth_reboot_event,
- NULL,
-};
-
-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_bh(&arp_tbl.lock);
- arp_tbl.constructor = qeth_arp_constructor;
- write_unlock_bh(&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_bh(&arp_tbl.lock);
- arp_tbl.constructor = qeth_old_arp_constructor;
- write_unlock_bh(&arp_tbl.lock);
- kfree(arp_direct_ops);
-}
-#endif /* CONFIG_QETH_IPV6 */
-
-static void
-qeth_sysfs_unregister(void)
-{
- s390_root_dev_unregister(qeth_root_dev);
- qeth_remove_driver_attributes();
- ccw_driver_unregister(&qeth_ccw_driver);
- ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
-}
-
-/**
- * register qeth at sysfs
- */
-static int
-qeth_sysfs_register(void)
-{
- int rc;
-
- rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
- if (rc)
- goto out;
-
- rc = ccw_driver_register(&qeth_ccw_driver);
- if (rc)
- goto out_ccw_driver;
-
- rc = qeth_create_driver_attributes();
- if (rc)
- goto out_qeth_attr;
-
- qeth_root_dev = s390_root_dev_register("qeth");
- rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
- if (!rc)
- goto out;
-
- qeth_remove_driver_attributes();
-out_qeth_attr:
- ccw_driver_unregister(&qeth_ccw_driver);
-out_ccw_driver:
- ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
-out:
- return rc;
-}
-
-/***
- * init function
- */
-static int __init
-qeth_init(void)
-{
- int rc;
-
- PRINT_INFO("loading %s\n", version);
-
- 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);
-
- rc = qeth_register_dbf_views();
- if (rc)
- goto out_err;
-
- rc = qeth_sysfs_register();
- if (rc)
- goto out_dbf;
-
-#ifdef CONFIG_QETH_IPV6
- rc = qeth_ipv6_init();
- if (rc) {
- PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
- goto out_sysfs;
- }
-#endif /* QETH_IPV6 */
- rc = qeth_register_notifiers();
- if (rc)
- goto out_ipv6;
- rc = qeth_create_procfs_entries();
- if (rc)
- goto out_notifiers;
-
- return rc;
-
-out_notifiers:
- qeth_unregister_notifiers();
-out_ipv6:
-#ifdef CONFIG_QETH_IPV6
- qeth_ipv6_uninit();
-out_sysfs:
-#endif /* QETH_IPV6 */
- qeth_sysfs_unregister();
-out_dbf:
- qeth_unregister_dbf_views();
-out_err:
- PRINT_ERR("Initialization failed with code %d\n", rc);
- 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_osn_register);
-EXPORT_SYMBOL(qeth_osn_deregister);
-EXPORT_SYMBOL(qeth_osn_assist);
-module_init(qeth_init);
-module_exit(qeth_exit);
-MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
-MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
- "Copyright 2000,2003 IBM Corporation\n");
-
-MODULE_LICENSE("GPL");
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff