| /* |
| * |
| * linux/drivers/s390/net/qeth_main.c ($Revision: 1.214 $) |
| * |
| * Linux on zSeries OSA Express and HiperSockets support |
| * |
| * Copyright 2000,2003 IBM Corporation |
| * |
| * Author(s): Original Code written by |
| * Utz Bacher (utz.bacher@de.ibm.com) |
| * Rewritten by |
| * Frank Pavlic (pavlic@de.ibm.com) and |
| * Thomas Spatzier <tspat@de.ibm.com> |
| * |
| * $Revision: 1.214 $ $Date: 2005/05/04 20:19:18 $ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| /*** |
| * eye catcher; just for debugging purposes |
| */ |
| void volatile |
| qeth_eyecatcher(void) |
| { |
| return; |
| } |
| |
| #include <linux/config.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/string.h> |
| #include <linux/errno.h> |
| #include <linux/mm.h> |
| #include <linux/ip.h> |
| #include <linux/inetdevice.h> |
| #include <linux/netdevice.h> |
| #include <linux/sched.h> |
| #include <linux/workqueue.h> |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/interrupt.h> |
| #include <linux/tcp.h> |
| #include <linux/icmp.h> |
| #include <linux/skbuff.h> |
| #include <linux/in.h> |
| #include <linux/igmp.h> |
| #include <linux/init.h> |
| #include <linux/reboot.h> |
| #include <linux/mii.h> |
| #include <linux/rcupdate.h> |
| #include <linux/ethtool.h> |
| |
| #include <net/arp.h> |
| #include <net/ip.h> |
| #include <net/route.h> |
| |
| #include <asm/ebcdic.h> |
| #include <asm/io.h> |
| #include <asm/qeth.h> |
| #include <asm/timex.h> |
| #include <asm/semaphore.h> |
| #include <asm/uaccess.h> |
| |
| #include "qeth.h" |
| #include "qeth_mpc.h" |
| #include "qeth_fs.h" |
| #include "qeth_eddp.h" |
| #include "qeth_tso.h" |
| |
| #define VERSION_QETH_C "$Revision: 1.214 $" |
| static const char *version = "qeth S/390 OSA-Express driver"; |
| |
| /** |
| * Debug Facility Stuff |
| */ |
| static debug_info_t *qeth_dbf_setup = NULL; |
| static debug_info_t *qeth_dbf_data = NULL; |
| static debug_info_t *qeth_dbf_misc = NULL; |
| static debug_info_t *qeth_dbf_control = NULL; |
| debug_info_t *qeth_dbf_trace = NULL; |
| static debug_info_t *qeth_dbf_sense = NULL; |
| static debug_info_t *qeth_dbf_qerr = NULL; |
| |
| DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf); |
| |
| /** |
| * some more definitions and declarations |
| */ |
| static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY; |
| |
| /* list of our cards */ |
| struct qeth_card_list_struct qeth_card_list; |
| /*process list want to be notified*/ |
| spinlock_t qeth_notify_lock; |
| struct list_head qeth_notify_list; |
| |
| static void qeth_send_control_data_cb(struct qeth_channel *, |
| struct qeth_cmd_buffer *); |
| |
| /** |
| * here we go with function implementation |
| */ |
| static void |
| qeth_init_qdio_info(struct qeth_card *card); |
| |
| static int |
| qeth_init_qdio_queues(struct qeth_card *card); |
| |
| static int |
| qeth_alloc_qdio_buffers(struct qeth_card *card); |
| |
| static void |
| qeth_free_qdio_buffers(struct qeth_card *); |
| |
| static void |
| qeth_clear_qdio_buffers(struct qeth_card *); |
| |
| static void |
| qeth_clear_ip_list(struct qeth_card *, int, int); |
| |
| static void |
| qeth_clear_ipacmd_list(struct qeth_card *); |
| |
| static int |
| qeth_qdio_clear_card(struct qeth_card *, int); |
| |
| static void |
| qeth_clear_working_pool_list(struct qeth_card *); |
| |
| static void |
| qeth_clear_cmd_buffers(struct qeth_channel *); |
| |
| static int |
| qeth_stop(struct net_device *); |
| |
| static void |
| qeth_clear_ipato_list(struct qeth_card *); |
| |
| static int |
| qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *); |
| |
| static void |
| qeth_irq_tasklet(unsigned long); |
| |
| static int |
| qeth_set_online(struct ccwgroup_device *); |
| |
| static 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_notify_processes(void) |
| { |
| /*notify all registered processes */ |
| struct qeth_notify_list_struct *n_entry; |
| |
| QETH_DBF_TEXT(trace,3,"procnoti"); |
| spin_lock(&qeth_notify_lock); |
| list_for_each_entry(n_entry, &qeth_notify_list, list) { |
| send_sig(n_entry->signum, n_entry->task, 1); |
| } |
| spin_unlock(&qeth_notify_lock); |
| |
| } |
| int |
| qeth_notifier_unregister(struct task_struct *p) |
| { |
| struct qeth_notify_list_struct *n_entry, *tmp; |
| |
| QETH_DBF_TEXT(trace, 2, "notunreg"); |
| spin_lock(&qeth_notify_lock); |
| list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) { |
| if (n_entry->task == p) { |
| list_del(&n_entry->list); |
| kfree(n_entry); |
| goto out; |
| } |
| } |
| out: |
| spin_unlock(&qeth_notify_lock); |
| return 0; |
| } |
| int |
| qeth_notifier_register(struct task_struct *p, int signum) |
| { |
| struct qeth_notify_list_struct *n_entry; |
| |
| |
| /*check first if entry already exists*/ |
| spin_lock(&qeth_notify_lock); |
| list_for_each_entry(n_entry, &qeth_notify_list, list) { |
| if (n_entry->task == p) { |
| n_entry->signum = signum; |
| spin_unlock(&qeth_notify_lock); |
| return 0; |
| } |
| } |
| spin_unlock(&qeth_notify_lock); |
| |
| n_entry = (struct qeth_notify_list_struct *) |
| kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL); |
| if (!n_entry) |
| return -ENOMEM; |
| n_entry->task = p; |
| n_entry->signum = signum; |
| spin_lock(&qeth_notify_lock); |
| list_add(&n_entry->list,&qeth_notify_list); |
| spin_unlock(&qeth_notify_lock); |
| return 0; |
| } |
| |
| |
| /** |
| * free channel command buffers |
| */ |
| static void |
| qeth_clean_channel(struct qeth_channel *channel) |
| { |
| int cnt; |
| |
| QETH_DBF_TEXT(setup, 2, "freech"); |
| for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| kfree(channel->iob[cnt].data); |
| } |
| |
| /** |
| * free card |
| */ |
| static void |
| qeth_free_card(struct qeth_card *card) |
| { |
| |
| QETH_DBF_TEXT(setup, 2, "freecrd"); |
| QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); |
| qeth_clean_channel(&card->read); |
| qeth_clean_channel(&card->write); |
| if (card->dev) |
| free_netdev(card->dev); |
| qeth_clear_ip_list(card, 0, 0); |
| qeth_clear_ipato_list(card); |
| kfree(card->ip_tbd_list); |
| qeth_free_qdio_buffers(card); |
| kfree(card); |
| } |
| |
| /** |
| * alloc memory for command buffer per channel |
| */ |
| static int |
| qeth_setup_channel(struct qeth_channel *channel) |
| { |
| int cnt; |
| |
| QETH_DBF_TEXT(setup, 2, "setupch"); |
| for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
| channel->iob[cnt].data = (char *) |
| kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
| if (channel->iob[cnt].data == NULL) |
| break; |
| channel->iob[cnt].state = BUF_STATE_FREE; |
| channel->iob[cnt].channel = channel; |
| channel->iob[cnt].callback = qeth_send_control_data_cb; |
| channel->iob[cnt].rc = 0; |
| } |
| if (cnt < QETH_CMD_BUFFER_NO) { |
| while (cnt-- > 0) |
| kfree(channel->iob[cnt].data); |
| return -ENOMEM; |
| } |
| channel->buf_no = 0; |
| channel->io_buf_no = 0; |
| atomic_set(&channel->irq_pending, 0); |
| spin_lock_init(&channel->iob_lock); |
| |
| init_waitqueue_head(&channel->wait_q); |
| channel->irq_tasklet.data = (unsigned long) channel; |
| channel->irq_tasklet.func = qeth_irq_tasklet; |
| return 0; |
| } |
| |
| /** |
| * alloc memory for card structure |
| */ |
| static struct qeth_card * |
| qeth_alloc_card(void) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(setup, 2, "alloccrd"); |
| card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card), |
| GFP_DMA|GFP_KERNEL); |
| if (!card) |
| return NULL; |
| QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); |
| memset(card, 0, sizeof(struct qeth_card)); |
| if (qeth_setup_channel(&card->read)) { |
| kfree(card); |
| return NULL; |
| } |
| if (qeth_setup_channel(&card->write)) { |
| qeth_clean_channel(&card->read); |
| kfree(card); |
| return NULL; |
| } |
| return card; |
| } |
| |
| static long |
| __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb) |
| { |
| if (!IS_ERR(irb)) |
| return 0; |
| |
| switch (PTR_ERR(irb)) { |
| case -EIO: |
| PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); |
| QETH_DBF_TEXT(trace, 2, "ckirberr"); |
| QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO); |
| break; |
| case -ETIMEDOUT: |
| PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); |
| QETH_DBF_TEXT(trace, 2, "ckirberr"); |
| QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT); |
| break; |
| default: |
| PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), |
| cdev->dev.bus_id); |
| QETH_DBF_TEXT(trace, 2, "ckirberr"); |
| QETH_DBF_TEXT(trace, 2, " rc???"); |
| } |
| return PTR_ERR(irb); |
| } |
| |
| static int |
| qeth_get_problem(struct ccw_device *cdev, struct irb *irb) |
| { |
| int dstat,cstat; |
| char *sense; |
| |
| sense = (char *) irb->ecw; |
| cstat = irb->scsw.cstat; |
| dstat = irb->scsw.dstat; |
| |
| if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | |
| SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | |
| SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { |
| QETH_DBF_TEXT(trace,2, "CGENCHK"); |
| PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ", |
| cdev->dev.bus_id, dstat, cstat); |
| HEXDUMP16(WARN, "irb: ", irb); |
| HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32); |
| return 1; |
| } |
| |
| if (dstat & DEV_STAT_UNIT_CHECK) { |
| if (sense[SENSE_RESETTING_EVENT_BYTE] & |
| SENSE_RESETTING_EVENT_FLAG) { |
| QETH_DBF_TEXT(trace,2,"REVIND"); |
| return 1; |
| } |
| if (sense[SENSE_COMMAND_REJECT_BYTE] & |
| SENSE_COMMAND_REJECT_FLAG) { |
| QETH_DBF_TEXT(trace,2,"CMDREJi"); |
| return 0; |
| } |
| if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { |
| QETH_DBF_TEXT(trace,2,"AFFE"); |
| return 1; |
| } |
| if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { |
| QETH_DBF_TEXT(trace,2,"ZEROSEN"); |
| return 0; |
| } |
| QETH_DBF_TEXT(trace,2,"DGENCHK"); |
| return 1; |
| } |
| return 0; |
| } |
| static int qeth_issue_next_read(struct qeth_card *); |
| |
| /** |
| * interrupt handler |
| */ |
| static void |
| qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) |
| { |
| int rc; |
| int cstat,dstat; |
| struct qeth_cmd_buffer *buffer; |
| struct qeth_channel *channel; |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace,5,"irq"); |
| |
| if (__qeth_check_irb_error(cdev, irb)) |
| return; |
| cstat = irb->scsw.cstat; |
| dstat = irb->scsw.dstat; |
| |
| card = CARD_FROM_CDEV(cdev); |
| if (!card) |
| return; |
| |
| if (card->read.ccwdev == cdev){ |
| channel = &card->read; |
| QETH_DBF_TEXT(trace,5,"read"); |
| } else if (card->write.ccwdev == cdev) { |
| channel = &card->write; |
| QETH_DBF_TEXT(trace,5,"write"); |
| } else { |
| channel = &card->data; |
| QETH_DBF_TEXT(trace,5,"data"); |
| } |
| atomic_set(&channel->irq_pending, 0); |
| |
| if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
| channel->state = CH_STATE_STOPPED; |
| |
| if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC)) |
| channel->state = CH_STATE_HALTED; |
| |
| /*let's wake up immediately on data channel*/ |
| if ((channel == &card->data) && (intparm != 0)) |
| goto out; |
| |
| if (intparm == QETH_CLEAR_CHANNEL_PARM) { |
| QETH_DBF_TEXT(trace, 6, "clrchpar"); |
| /* we don't have to handle this further */ |
| intparm = 0; |
| } |
| if (intparm == QETH_HALT_CHANNEL_PARM) { |
| QETH_DBF_TEXT(trace, 6, "hltchpar"); |
| /* we don't have to handle this further */ |
| intparm = 0; |
| } |
| if ((dstat & DEV_STAT_UNIT_EXCEP) || |
| (dstat & DEV_STAT_UNIT_CHECK) || |
| (cstat)) { |
| if (irb->esw.esw0.erw.cons) { |
| /* TODO: we should make this s390dbf */ |
| PRINT_WARN("sense data available on channel %s.\n", |
| CHANNEL_ID(channel)); |
| PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat); |
| HEXDUMP16(WARN,"irb: ",irb); |
| HEXDUMP16(WARN,"sense data: ",irb->ecw); |
| } |
| rc = qeth_get_problem(cdev,irb); |
| if (rc) { |
| qeth_schedule_recovery(card); |
| goto out; |
| } |
| } |
| |
| if (intparm) { |
| buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); |
| buffer->state = BUF_STATE_PROCESSED; |
| } |
| if (channel == &card->data) |
| return; |
| |
| if (channel == &card->read && |
| channel->state == CH_STATE_UP) |
| qeth_issue_next_read(card); |
| |
| tasklet_schedule(&channel->irq_tasklet); |
| return; |
| out: |
| wake_up(&card->wait_q); |
| } |
| |
| /** |
| * tasklet function scheduled from irq handler |
| */ |
| static void |
| qeth_irq_tasklet(unsigned long data) |
| { |
| struct qeth_card *card; |
| struct qeth_channel *channel; |
| struct qeth_cmd_buffer *iob; |
| __u8 index; |
| |
| QETH_DBF_TEXT(trace,5,"irqtlet"); |
| channel = (struct qeth_channel *) data; |
| iob = channel->iob; |
| index = channel->buf_no; |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| while (iob[index].state == BUF_STATE_PROCESSED) { |
| if (iob[index].callback !=NULL) { |
| iob[index].callback(channel,iob + index); |
| } |
| index = (index + 1) % QETH_CMD_BUFFER_NO; |
| } |
| channel->buf_no = index; |
| wake_up(&card->wait_q); |
| } |
| |
| static int qeth_stop_card(struct qeth_card *, 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; |
| enum qeth_card_states recover_flag; |
| |
| QETH_DBF_TEXT(setup, 3, "setoffl"); |
| QETH_DBF_HEX(setup, 3, &card, sizeof(void *)); |
| |
| recover_flag = card->state; |
| if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){ |
| PRINT_WARN("Stopping card %s interrupted by user!\n", |
| CARD_BUS_ID(card)); |
| return -ERESTARTSYS; |
| } |
| if ((rc = ccw_device_set_offline(CARD_DDEV(card))) || |
| (rc = ccw_device_set_offline(CARD_WDEV(card))) || |
| (rc = ccw_device_set_offline(CARD_RDEV(card)))) { |
| QETH_DBF_TEXT_(setup, 2, "1err%d", rc); |
| } |
| if (recover_flag == CARD_STATE_UP) |
| card->state = CARD_STATE_RECOVER; |
| qeth_notify_processes(); |
| return 0; |
| } |
| |
| static int |
| qeth_set_offline(struct ccwgroup_device *cgdev) |
| { |
| return __qeth_set_offline(cgdev, 0); |
| } |
| |
| static int |
| qeth_wait_for_threads(struct qeth_card *card, unsigned long threads); |
| |
| |
| static void |
| qeth_remove_device(struct ccwgroup_device *cgdev) |
| { |
| struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(setup, 3, "rmdev"); |
| QETH_DBF_HEX(setup, 3, &card, sizeof(void *)); |
| |
| if (!card) |
| return; |
| |
| if (qeth_wait_for_threads(card, 0xffffffff)) |
| return; |
| |
| if (cgdev->state == CCWGROUP_ONLINE){ |
| card->use_hard_stop = 1; |
| qeth_set_offline(cgdev); |
| } |
| /* remove form our internal list */ |
| write_lock_irqsave(&qeth_card_list.rwlock, flags); |
| list_del(&card->list); |
| write_unlock_irqrestore(&qeth_card_list.rwlock, flags); |
| if (card->dev) |
| unregister_netdev(card->dev); |
| qeth_remove_device_attributes(&cgdev->dev); |
| qeth_free_card(card); |
| cgdev->dev.driver_data = NULL; |
| put_device(&cgdev->dev); |
| } |
| |
| static int |
| qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *); |
| static int |
| qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *); |
| |
| /** |
| * Add/remove address to/from card's ip list, i.e. try to add or remove |
| * reference to/from an IP address that is already registered on the card. |
| * Returns: |
| * 0 address was on card and its reference count has been adjusted, |
| * but is still > 0, so nothing has to be done |
| * also returns 0 if card was not on card and the todo was to delete |
| * the address -> there is also nothing to be done |
| * 1 address was not on card and the todo is to add it to the card's ip |
| * list |
| * -1 address was on card and its reference count has been decremented |
| * to <= 0 by the todo -> address must be removed from card |
| */ |
| static int |
| __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo, |
| struct qeth_ipaddr **__addr) |
| { |
| struct qeth_ipaddr *addr; |
| int found = 0; |
| |
| list_for_each_entry(addr, &card->ip_list, entry) { |
| if ((addr->proto == QETH_PROT_IPV4) && |
| (todo->proto == QETH_PROT_IPV4) && |
| (addr->type == todo->type) && |
| (addr->u.a4.addr == todo->u.a4.addr) && |
| (addr->u.a4.mask == todo->u.a4.mask) ){ |
| found = 1; |
| break; |
| } |
| if ((addr->proto == QETH_PROT_IPV6) && |
| (todo->proto == QETH_PROT_IPV6) && |
| (addr->type == todo->type) && |
| (addr->u.a6.pfxlen == todo->u.a6.pfxlen) && |
| (memcmp(&addr->u.a6.addr, &todo->u.a6.addr, |
| sizeof(struct in6_addr)) == 0)) { |
| found = 1; |
| break; |
| } |
| } |
| if (found){ |
| addr->users += todo->users; |
| if (addr->users <= 0){ |
| *__addr = addr; |
| return -1; |
| } else { |
| /* for VIPA and RXIP limit refcount to 1 */ |
| if (addr->type != QETH_IP_TYPE_NORMAL) |
| addr->users = 1; |
| return 0; |
| } |
| } |
| if (todo->users > 0){ |
| /* for VIPA and RXIP limit refcount to 1 */ |
| if (todo->type != QETH_IP_TYPE_NORMAL) |
| todo->users = 1; |
| return 1; |
| } else |
| return 0; |
| } |
| |
| static inline int |
| __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr, |
| int same_type) |
| { |
| struct qeth_ipaddr *tmp; |
| |
| list_for_each_entry(tmp, list, entry) { |
| if ((tmp->proto == QETH_PROT_IPV4) && |
| (addr->proto == QETH_PROT_IPV4) && |
| ((same_type && (tmp->type == addr->type)) || |
| (!same_type && (tmp->type != addr->type)) ) && |
| (tmp->u.a4.addr == addr->u.a4.addr) ){ |
| return 1; |
| } |
| if ((tmp->proto == QETH_PROT_IPV6) && |
| (addr->proto == QETH_PROT_IPV6) && |
| ((same_type && (tmp->type == addr->type)) || |
| (!same_type && (tmp->type != addr->type)) ) && |
| (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr, |
| sizeof(struct in6_addr)) == 0) ) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * Add IP to be added to todo list. If there is already an "add todo" |
| * in this list we just incremenent the reference count. |
| * Returns 0 if we just incremented reference count. |
| */ |
| static int |
| __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add) |
| { |
| struct qeth_ipaddr *tmp, *t; |
| int found = 0; |
| |
| list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) { |
| if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) && |
| (tmp->type == QETH_IP_TYPE_DEL_ALL_MC)) |
| return 0; |
| if ((tmp->proto == QETH_PROT_IPV4) && |
| (addr->proto == QETH_PROT_IPV4) && |
| (tmp->type == addr->type) && |
| (tmp->is_multicast == addr->is_multicast) && |
| (tmp->u.a4.addr == addr->u.a4.addr) && |
| (tmp->u.a4.mask == addr->u.a4.mask) ){ |
| found = 1; |
| break; |
| } |
| if ((tmp->proto == QETH_PROT_IPV6) && |
| (addr->proto == QETH_PROT_IPV6) && |
| (tmp->type == addr->type) && |
| (tmp->is_multicast == addr->is_multicast) && |
| (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) && |
| (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr, |
| sizeof(struct in6_addr)) == 0) ){ |
| found = 1; |
| break; |
| } |
| } |
| if (found){ |
| if (addr->users != 0) |
| tmp->users += addr->users; |
| else |
| tmp->users += add? 1:-1; |
| if (tmp->users == 0){ |
| list_del(&tmp->entry); |
| kfree(tmp); |
| } |
| return 0; |
| } else { |
| if (addr->type == QETH_IP_TYPE_DEL_ALL_MC) |
| list_add(&addr->entry, card->ip_tbd_list); |
| else { |
| if (addr->users == 0) |
| addr->users += add? 1:-1; |
| if (add && (addr->type == QETH_IP_TYPE_NORMAL) && |
| qeth_is_addr_covered_by_ipato(card, addr)){ |
| QETH_DBF_TEXT(trace, 2, "tkovaddr"); |
| addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; |
| } |
| list_add_tail(&addr->entry, card->ip_tbd_list); |
| } |
| return 1; |
| } |
| } |
| |
| /** |
| * Remove IP address from list |
| */ |
| static int |
| qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr) |
| { |
| unsigned long flags; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,4,"delip"); |
| if (addr->proto == QETH_PROT_IPV4) |
| QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4); |
| else { |
| QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8); |
| QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8); |
| } |
| spin_lock_irqsave(&card->ip_lock, flags); |
| rc = __qeth_insert_ip_todo(card, addr, 0); |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| return rc; |
| } |
| |
| static int |
| qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr) |
| { |
| unsigned long flags; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,4,"addip"); |
| if (addr->proto == QETH_PROT_IPV4) |
| QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4); |
| else { |
| QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8); |
| QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8); |
| } |
| spin_lock_irqsave(&card->ip_lock, flags); |
| rc = __qeth_insert_ip_todo(card, addr, 1); |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| return rc; |
| } |
| |
| static inline void |
| __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags) |
| { |
| struct qeth_ipaddr *addr, *tmp; |
| int rc; |
| |
| list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) { |
| if (addr->is_multicast) { |
| spin_unlock_irqrestore(&card->ip_lock, *flags); |
| rc = qeth_deregister_addr_entry(card, addr); |
| spin_lock_irqsave(&card->ip_lock, *flags); |
| if (!rc) { |
| list_del(&addr->entry); |
| kfree(addr); |
| } |
| } |
| } |
| } |
| |
| static void |
| qeth_set_ip_addr_list(struct qeth_card *card) |
| { |
| struct list_head *tbd_list; |
| struct qeth_ipaddr *todo, *addr; |
| unsigned long flags; |
| int rc; |
| |
| QETH_DBF_TEXT(trace, 2, "sdiplist"); |
| QETH_DBF_HEX(trace, 2, &card, sizeof(void *)); |
| |
| spin_lock_irqsave(&card->ip_lock, flags); |
| tbd_list = card->ip_tbd_list; |
| card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC); |
| if (!card->ip_tbd_list) { |
| QETH_DBF_TEXT(trace, 0, "silnomem"); |
| card->ip_tbd_list = tbd_list; |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| return; |
| } else |
| INIT_LIST_HEAD(card->ip_tbd_list); |
| |
| while (!list_empty(tbd_list)){ |
| todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry); |
| list_del(&todo->entry); |
| if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){ |
| __qeth_delete_all_mc(card, &flags); |
| kfree(todo); |
| continue; |
| } |
| rc = __qeth_ref_ip_on_card(card, todo, &addr); |
| if (rc == 0) { |
| /* nothing to be done; only adjusted refcount */ |
| kfree(todo); |
| } else if (rc == 1) { |
| /* new entry to be added to on-card list */ |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| rc = qeth_register_addr_entry(card, todo); |
| spin_lock_irqsave(&card->ip_lock, flags); |
| if (!rc) |
| list_add_tail(&todo->entry, &card->ip_list); |
| else |
| kfree(todo); |
| } else if (rc == -1) { |
| /* on-card entry to be removed */ |
| list_del_init(&addr->entry); |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| rc = qeth_deregister_addr_entry(card, addr); |
| spin_lock_irqsave(&card->ip_lock, flags); |
| if (!rc) |
| kfree(addr); |
| else |
| list_add_tail(&addr->entry, &card->ip_list); |
| kfree(todo); |
| } |
| } |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| kfree(tbd_list); |
| } |
| |
| static void qeth_delete_mc_addresses(struct qeth_card *); |
| static void qeth_add_multicast_ipv4(struct qeth_card *); |
| #ifdef CONFIG_QETH_IPV6 |
| static void qeth_add_multicast_ipv6(struct qeth_card *); |
| #endif |
| |
| static inline int |
| qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| if ( !(card->thread_allowed_mask & thread) || |
| (card->thread_start_mask & thread) ) { |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| return -EPERM; |
| } |
| card->thread_start_mask |= thread; |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| return 0; |
| } |
| |
| static void |
| qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| card->thread_start_mask &= ~thread; |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| wake_up(&card->wait_q); |
| } |
| |
| static void |
| qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| card->thread_running_mask &= ~thread; |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| wake_up(&card->wait_q); |
| } |
| |
| static inline int |
| __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| { |
| unsigned long flags; |
| int rc = 0; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| if (card->thread_start_mask & thread){ |
| if ((card->thread_allowed_mask & thread) && |
| !(card->thread_running_mask & thread)){ |
| rc = 1; |
| card->thread_start_mask &= ~thread; |
| card->thread_running_mask |= thread; |
| } else |
| rc = -EPERM; |
| } |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| return rc; |
| } |
| |
| static int |
| qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| { |
| int rc = 0; |
| |
| wait_event(card->wait_q, |
| (rc = __qeth_do_run_thread(card, thread)) >= 0); |
| return rc; |
| } |
| |
| static int |
| qeth_register_ip_addresses(void *ptr) |
| { |
| struct qeth_card *card; |
| |
| card = (struct qeth_card *) ptr; |
| daemonize("qeth_reg_ip"); |
| QETH_DBF_TEXT(trace,4,"regipth1"); |
| if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD)) |
| return 0; |
| QETH_DBF_TEXT(trace,4,"regipth2"); |
| qeth_set_ip_addr_list(card); |
| qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD); |
| return 0; |
| } |
| |
| static int |
| qeth_recover(void *ptr) |
| { |
| struct qeth_card *card; |
| int rc = 0; |
| |
| card = (struct qeth_card *) ptr; |
| daemonize("qeth_recover"); |
| QETH_DBF_TEXT(trace,2,"recover1"); |
| QETH_DBF_HEX(trace, 2, &card, sizeof(void *)); |
| if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
| return 0; |
| QETH_DBF_TEXT(trace,2,"recover2"); |
| PRINT_WARN("Recovery of device %s started ...\n", |
| CARD_BUS_ID(card)); |
| card->use_hard_stop = 1; |
| __qeth_set_offline(card->gdev,1); |
| rc = __qeth_set_online(card->gdev,1); |
| if (!rc) |
| PRINT_INFO("Device %s successfully recovered!\n", |
| CARD_BUS_ID(card)); |
| else |
| PRINT_INFO("Device %s could not be recovered!\n", |
| CARD_BUS_ID(card)); |
| /* don't run another scheduled recovery */ |
| qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
| qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); |
| return 0; |
| } |
| |
| void |
| qeth_schedule_recovery(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(trace,2,"startrec"); |
| |
| if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| } |
| |
| static int |
| qeth_do_start_thread(struct qeth_card *card, unsigned long thread) |
| { |
| unsigned long flags; |
| int rc = 0; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x", |
| (u8) card->thread_start_mask, |
| (u8) card->thread_allowed_mask, |
| (u8) card->thread_running_mask); |
| rc = (card->thread_start_mask & thread); |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| return rc; |
| } |
| |
| static void |
| qeth_start_kernel_thread(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(trace , 2, "strthrd"); |
| |
| if (card->read.state != CH_STATE_UP && |
| card->write.state != CH_STATE_UP) |
| return; |
| |
| if (qeth_do_start_thread(card, QETH_SET_IP_THREAD)) |
| kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD); |
| if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) |
| kernel_thread(qeth_recover, (void *) card, SIGCHLD); |
| } |
| |
| |
| static void |
| qeth_set_intial_options(struct qeth_card *card) |
| { |
| card->options.route4.type = NO_ROUTER; |
| #ifdef CONFIG_QETH_IPV6 |
| card->options.route6.type = NO_ROUTER; |
| #endif /* QETH_IPV6 */ |
| card->options.checksum_type = QETH_CHECKSUM_DEFAULT; |
| card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; |
| card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; |
| card->options.fake_broadcast = 0; |
| card->options.add_hhlen = DEFAULT_ADD_HHLEN; |
| card->options.fake_ll = 0; |
| card->options.layer2 = 0; |
| } |
| |
| /** |
| * initialize channels ,card and all state machines |
| */ |
| static int |
| qeth_setup_card(struct qeth_card *card) |
| { |
| |
| QETH_DBF_TEXT(setup, 2, "setupcrd"); |
| QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); |
| |
| card->read.state = CH_STATE_DOWN; |
| card->write.state = CH_STATE_DOWN; |
| card->data.state = CH_STATE_DOWN; |
| card->state = CARD_STATE_DOWN; |
| card->lan_online = 0; |
| card->use_hard_stop = 0; |
| card->dev = NULL; |
| #ifdef CONFIG_QETH_VLAN |
| spin_lock_init(&card->vlanlock); |
| card->vlangrp = NULL; |
| #endif |
| spin_lock_init(&card->ip_lock); |
| spin_lock_init(&card->thread_mask_lock); |
| card->thread_start_mask = 0; |
| card->thread_allowed_mask = 0; |
| card->thread_running_mask = 0; |
| INIT_WORK(&card->kernel_thread_starter, |
| (void *)qeth_start_kernel_thread,card); |
| INIT_LIST_HEAD(&card->ip_list); |
| card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); |
| if (!card->ip_tbd_list) { |
| QETH_DBF_TEXT(setup, 0, "iptbdnom"); |
| return -ENOMEM; |
| } |
| INIT_LIST_HEAD(card->ip_tbd_list); |
| INIT_LIST_HEAD(&card->cmd_waiter_list); |
| init_waitqueue_head(&card->wait_q); |
| /* intial options */ |
| qeth_set_intial_options(card); |
| /* IP address takeover */ |
| INIT_LIST_HEAD(&card->ipato.entries); |
| card->ipato.enabled = 0; |
| card->ipato.invert4 = 0; |
| card->ipato.invert6 = 0; |
| /* init QDIO stuff */ |
| qeth_init_qdio_info(card); |
| return 0; |
| } |
| |
| static int |
| is_1920_device (struct qeth_card *card) |
| { |
| int single_queue = 0; |
| struct ccw_device *ccwdev; |
| struct channelPath_dsc { |
| u8 flags; |
| u8 lsn; |
| u8 desc; |
| u8 chpid; |
| u8 swla; |
| u8 zeroes; |
| u8 chla; |
| u8 chpp; |
| } *chp_dsc; |
| |
| QETH_DBF_TEXT(setup, 2, "chk_1920"); |
| |
| ccwdev = card->data.ccwdev; |
| chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); |
| if (chp_dsc != NULL) { |
| /* CHPP field bit 6 == 1 -> single queue */ |
| single_queue = ((chp_dsc->chpp & 0x02) == 0x02); |
| kfree(chp_dsc); |
| } |
| QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue); |
| return single_queue; |
| } |
| |
| static int |
| qeth_determine_card_type(struct qeth_card *card) |
| { |
| int i = 0; |
| |
| QETH_DBF_TEXT(setup, 2, "detcdtyp"); |
| |
| while (known_devices[i][4]) { |
| if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) && |
| (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) { |
| card->info.type = known_devices[i][4]; |
| if (is_1920_device(card)) { |
| PRINT_INFO("Priority Queueing not able " |
| "due to hardware limitations!\n"); |
| card->qdio.no_out_queues = 1; |
| card->qdio.default_out_queue = 0; |
| } else { |
| card->qdio.no_out_queues = known_devices[i][8]; |
| } |
| card->info.is_multicast_different = known_devices[i][9]; |
| return 0; |
| } |
| i++; |
| } |
| card->info.type = QETH_CARD_TYPE_UNKNOWN; |
| PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card)); |
| return -ENOENT; |
| } |
| |
| static int |
| qeth_probe_device(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card; |
| struct device *dev; |
| unsigned long flags; |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "probedev"); |
| |
| dev = &gdev->dev; |
| if (!get_device(dev)) |
| return -ENODEV; |
| |
| card = qeth_alloc_card(); |
| if (!card) { |
| put_device(dev); |
| QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM); |
| return -ENOMEM; |
| } |
| card->read.ccwdev = gdev->cdev[0]; |
| card->write.ccwdev = gdev->cdev[1]; |
| card->data.ccwdev = gdev->cdev[2]; |
| |
| if ((rc = qeth_setup_card(card))){ |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| put_device(dev); |
| qeth_free_card(card); |
| return rc; |
| } |
| gdev->dev.driver_data = card; |
| card->gdev = gdev; |
| gdev->cdev[0]->handler = qeth_irq; |
| gdev->cdev[1]->handler = qeth_irq; |
| gdev->cdev[2]->handler = qeth_irq; |
| |
| rc = qeth_create_device_attributes(dev); |
| if (rc) { |
| put_device(dev); |
| qeth_free_card(card); |
| return rc; |
| } |
| if ((rc = qeth_determine_card_type(card))){ |
| PRINT_WARN("%s: not a valid card type\n", __func__); |
| QETH_DBF_TEXT_(setup, 2, "3err%d", rc); |
| put_device(dev); |
| qeth_free_card(card); |
| return rc; |
| } |
| /* insert into our internal list */ |
| write_lock_irqsave(&qeth_card_list.rwlock, flags); |
| list_add_tail(&card->list, &qeth_card_list.list); |
| write_unlock_irqrestore(&qeth_card_list.rwlock, flags); |
| return rc; |
| } |
| |
| |
| static int |
| qeth_get_unitaddr(struct qeth_card *card) |
| { |
| int length; |
| char *prcd; |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "getunit"); |
| rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length); |
| if (rc) { |
| PRINT_ERR("read_conf_data for device %s returned %i\n", |
| CARD_DDEV_ID(card), rc); |
| return rc; |
| } |
| card->info.chpid = prcd[30]; |
| card->info.unit_addr2 = prcd[31]; |
| card->info.cula = prcd[63]; |
| card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && |
| (prcd[0x11] == _ascebc['M'])); |
| return 0; |
| } |
| |
| static void |
| qeth_init_tokens(struct qeth_card *card) |
| { |
| card->token.issuer_rm_w = 0x00010103UL; |
| card->token.cm_filter_w = 0x00010108UL; |
| card->token.cm_connection_w = 0x0001010aUL; |
| card->token.ulp_filter_w = 0x0001010bUL; |
| card->token.ulp_connection_w = 0x0001010dUL; |
| } |
| |
| static inline __u16 |
| raw_devno_from_bus_id(char *id) |
| { |
| id += (strlen(id) - 4); |
| return (__u16) simple_strtoul(id, &id, 16); |
| } |
| /** |
| * setup channel |
| */ |
| static void |
| qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace, 4, "setupccw"); |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| if (channel == &card->read) |
| memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| else |
| memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| channel->ccw.count = len; |
| channel->ccw.cda = (__u32) __pa(iob); |
| } |
| |
| /** |
| * get free buffer for ccws (IDX activation, lancmds,ipassists...) |
| */ |
| static struct qeth_cmd_buffer * |
| __qeth_get_buffer(struct qeth_channel *channel) |
| { |
| __u8 index; |
| |
| QETH_DBF_TEXT(trace, 6, "getbuff"); |
| index = channel->io_buf_no; |
| do { |
| if (channel->iob[index].state == BUF_STATE_FREE) { |
| channel->iob[index].state = BUF_STATE_LOCKED; |
| channel->io_buf_no = (channel->io_buf_no + 1) % |
| QETH_CMD_BUFFER_NO; |
| memset(channel->iob[index].data, 0, QETH_BUFSIZE); |
| return channel->iob + index; |
| } |
| index = (index + 1) % QETH_CMD_BUFFER_NO; |
| } while(index != channel->io_buf_no); |
| |
| return NULL; |
| } |
| |
| /** |
| * release command buffer |
| */ |
| static void |
| qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) |
| { |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace, 6, "relbuff"); |
| spin_lock_irqsave(&channel->iob_lock, flags); |
| memset(iob->data, 0, QETH_BUFSIZE); |
| iob->state = BUF_STATE_FREE; |
| iob->callback = qeth_send_control_data_cb; |
| iob->rc = 0; |
| spin_unlock_irqrestore(&channel->iob_lock, flags); |
| } |
| |
| static struct qeth_cmd_buffer * |
| qeth_get_buffer(struct qeth_channel *channel) |
| { |
| struct qeth_cmd_buffer *buffer = NULL; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&channel->iob_lock, flags); |
| buffer = __qeth_get_buffer(channel); |
| spin_unlock_irqrestore(&channel->iob_lock, flags); |
| return buffer; |
| } |
| |
| static struct qeth_cmd_buffer * |
| qeth_wait_for_buffer(struct qeth_channel *channel) |
| { |
| struct qeth_cmd_buffer *buffer; |
| wait_event(channel->wait_q, |
| ((buffer = qeth_get_buffer(channel)) != NULL)); |
| return buffer; |
| } |
| |
| static void |
| qeth_clear_cmd_buffers(struct qeth_channel *channel) |
| { |
| int cnt = 0; |
| |
| for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| qeth_release_buffer(channel,&channel->iob[cnt]); |
| channel->buf_no = 0; |
| channel->io_buf_no = 0; |
| } |
| |
| /** |
| * start IDX for read and write channel |
| */ |
| static int |
| qeth_idx_activate_get_answer(struct qeth_channel *channel, |
| void (*idx_reply_cb)(struct qeth_channel *, |
| struct qeth_cmd_buffer *)) |
| { |
| struct qeth_cmd_buffer *iob; |
| unsigned long flags; |
| int rc; |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(setup, 2, "idxanswr"); |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| iob = qeth_get_buffer(channel); |
| iob->callback = idx_reply_cb; |
| memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| channel->ccw.count = QETH_BUFSIZE; |
| channel->ccw.cda = (__u32) __pa(iob->data); |
| |
| wait_event(card->wait_q, |
| atomic_compare_and_swap(0,1,&channel->irq_pending) == 0); |
| QETH_DBF_TEXT(setup, 6, "noirqpnd"); |
| spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| rc = ccw_device_start(channel->ccwdev, |
| &channel->ccw,(addr_t) iob, 0, 0); |
| spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| |
| if (rc) { |
| PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc); |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| atomic_set(&channel->irq_pending, 0); |
| wake_up(&card->wait_q); |
| return rc; |
| } |
| rc = wait_event_interruptible_timeout(card->wait_q, |
| channel->state == CH_STATE_UP, QETH_TIMEOUT); |
| if (rc == -ERESTARTSYS) |
| return rc; |
| if (channel->state != CH_STATE_UP){ |
| rc = -ETIME; |
| QETH_DBF_TEXT_(setup, 2, "3err%d", rc); |
| qeth_clear_cmd_buffers(channel); |
| } else |
| rc = 0; |
| return rc; |
| } |
| |
| static int |
| qeth_idx_activate_channel(struct qeth_channel *channel, |
| void (*idx_reply_cb)(struct qeth_channel *, |
| struct qeth_cmd_buffer *)) |
| { |
| struct qeth_card *card; |
| struct qeth_cmd_buffer *iob; |
| unsigned long flags; |
| __u16 temp; |
| int rc; |
| |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| |
| QETH_DBF_TEXT(setup, 2, "idxactch"); |
| |
| iob = qeth_get_buffer(channel); |
| iob->callback = idx_reply_cb; |
| memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| channel->ccw.count = IDX_ACTIVATE_SIZE; |
| channel->ccw.cda = (__u32) __pa(iob->data); |
| if (channel == &card->write) { |
| memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); |
| memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| card->seqno.trans_hdr++; |
| } else { |
| memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); |
| memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| } |
| memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), |
| &card->info.func_level,sizeof(__u16)); |
| temp = raw_devno_from_bus_id(CARD_DDEV_ID(card)); |
| memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2); |
| temp = (card->info.cula << 8) + card->info.unit_addr2; |
| memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); |
| |
| wait_event(card->wait_q, |
| atomic_compare_and_swap(0,1,&channel->irq_pending) == 0); |
| QETH_DBF_TEXT(setup, 6, "noirqpnd"); |
| spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| rc = ccw_device_start(channel->ccwdev, |
| &channel->ccw,(addr_t) iob, 0, 0); |
| spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| |
| if (rc) { |
| PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc); |
| QETH_DBF_TEXT_(setup, 2, "1err%d", rc); |
| atomic_set(&channel->irq_pending, 0); |
| wake_up(&card->wait_q); |
| return rc; |
| } |
| rc = wait_event_interruptible_timeout(card->wait_q, |
| channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); |
| if (rc == -ERESTARTSYS) |
| return rc; |
| if (channel->state != CH_STATE_ACTIVATING) { |
| PRINT_WARN("qeth: IDX activate timed out!\n"); |
| QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME); |
| qeth_clear_cmd_buffers(channel); |
| return -ETIME; |
| } |
| return qeth_idx_activate_get_answer(channel,idx_reply_cb); |
| } |
| |
| static int |
| qeth_peer_func_level(int level) |
| { |
| if ((level & 0xff) == 8) |
| return (level & 0xff) + 0x400; |
| if (((level >> 8) & 3) == 1) |
| return (level & 0xff) + 0x200; |
| return level; |
| } |
| |
| static void |
| qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) |
| { |
| struct qeth_card *card; |
| __u16 temp; |
| |
| QETH_DBF_TEXT(setup ,2, "idxwrcb"); |
| |
| if (channel->state == CH_STATE_DOWN) { |
| channel->state = CH_STATE_ACTIVATING; |
| goto out; |
| } |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| |
| if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
| PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative " |
| "reply\n", CARD_WDEV_ID(card)); |
| goto out; |
| } |
| memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { |
| PRINT_WARN("IDX_ACTIVATE on write channel device %s: " |
| "function level mismatch " |
| "(sent: 0x%x, received: 0x%x)\n", |
| CARD_WDEV_ID(card), card->info.func_level, temp); |
| goto out; |
| } |
| channel->state = CH_STATE_UP; |
| out: |
| qeth_release_buffer(channel, iob); |
| } |
| |
| static int |
| qeth_check_idx_response(unsigned char *buffer) |
| { |
| if (!buffer) |
| return 0; |
| |
| QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN); |
| if ((buffer[2] & 0xc0) == 0xc0) { |
| PRINT_WARN("received an IDX TERMINATE " |
| "with cause code 0x%02x%s\n", |
| buffer[4], |
| ((buffer[4] == 0x22) ? |
| " -- try another portname" : "")); |
| QETH_DBF_TEXT(trace, 2, "ckidxres"); |
| QETH_DBF_TEXT(trace, 2, " idxterm"); |
| QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO); |
| return -EIO; |
| } |
| return 0; |
| } |
| |
| static void |
| qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) |
| { |
| struct qeth_card *card; |
| __u16 temp; |
| |
| QETH_DBF_TEXT(setup , 2, "idxrdcb"); |
| if (channel->state == CH_STATE_DOWN) { |
| channel->state = CH_STATE_ACTIVATING; |
| goto out; |
| } |
| |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| if (qeth_check_idx_response(iob->data)) { |
| goto out; |
| } |
| if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
| PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative " |
| "reply\n", CARD_RDEV_ID(card)); |
| goto out; |
| } |
| |
| /** |
| * temporary fix for microcode bug |
| * to revert it,replace OR by AND |
| */ |
| if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || |
| (card->info.type == QETH_CARD_TYPE_OSAE) ) |
| card->info.portname_required = 1; |
| |
| memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| if (temp != qeth_peer_func_level(card->info.func_level)) { |
| PRINT_WARN("IDX_ACTIVATE on read channel device %s: function " |
| "level mismatch (sent: 0x%x, received: 0x%x)\n", |
| CARD_RDEV_ID(card), card->info.func_level, temp); |
| goto out; |
| } |
| memcpy(&card->token.issuer_rm_r, |
| QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| QETH_MPC_TOKEN_LENGTH); |
| memcpy(&card->info.mcl_level[0], |
| QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); |
| channel->state = CH_STATE_UP; |
| out: |
| qeth_release_buffer(channel,iob); |
| } |
| |
| static int |
| qeth_issue_next_read(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(trace,5,"issnxrd"); |
| if (card->read.state != CH_STATE_UP) |
| return -EIO; |
| iob = qeth_get_buffer(&card->read); |
| if (!iob) { |
| PRINT_WARN("issue_next_read failed: no iob available!\n"); |
| return -ENOMEM; |
| } |
| qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); |
| wait_event(card->wait_q, |
| atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0); |
| QETH_DBF_TEXT(trace, 6, "noirqpnd"); |
| rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
| (addr_t) iob, 0, 0); |
| if (rc) { |
| PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc); |
| atomic_set(&card->read.irq_pending, 0); |
| qeth_schedule_recovery(card); |
| wake_up(&card->wait_q); |
| } |
| return rc; |
| } |
| |
| static struct qeth_reply * |
| qeth_alloc_reply(struct qeth_card *card) |
| { |
| struct qeth_reply *reply; |
| |
| reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC); |
| if (reply){ |
| memset(reply, 0, sizeof(struct qeth_reply)); |
| atomic_set(&reply->refcnt, 1); |
| reply->card = card; |
| }; |
| return reply; |
| } |
| |
| static void |
| qeth_get_reply(struct qeth_reply *reply) |
| { |
| WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| atomic_inc(&reply->refcnt); |
| } |
| |
| static void |
| qeth_put_reply(struct qeth_reply *reply) |
| { |
| WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| if (atomic_dec_and_test(&reply->refcnt)) |
| kfree(reply); |
| } |
| |
| static void |
| qeth_cmd_timeout(unsigned long data) |
| { |
| struct qeth_reply *reply, *list_reply, *r; |
| unsigned long flags; |
| |
| reply = (struct qeth_reply *) data; |
| spin_lock_irqsave(&reply->card->lock, flags); |
| list_for_each_entry_safe(list_reply, r, |
| &reply->card->cmd_waiter_list, list) { |
| if (reply == list_reply){ |
| qeth_get_reply(reply); |
| list_del_init(&reply->list); |
| spin_unlock_irqrestore(&reply->card->lock, flags); |
| reply->rc = -ETIME; |
| reply->received = 1; |
| wake_up(&reply->wait_q); |
| qeth_put_reply(reply); |
| return; |
| } |
| } |
| spin_unlock_irqrestore(&reply->card->lock, flags); |
| } |
| |
| static void |
| qeth_reset_ip_addresses(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(trace, 2, "rstipadd"); |
| |
| qeth_clear_ip_list(card, 0, 1); |
| /* this function will also schedule the SET_IP_THREAD */ |
| qeth_set_multicast_list(card->dev); |
| } |
| |
| static struct qeth_ipa_cmd * |
| qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob) |
| { |
| struct qeth_ipa_cmd *cmd = NULL; |
| |
| QETH_DBF_TEXT(trace,5,"chkipad"); |
| if (IS_IPA(iob->data)){ |
| cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); |
| if (IS_IPA_REPLY(cmd)) |
| return cmd; |
| else { |
| switch (cmd->hdr.command) { |
| case IPA_CMD_STOPLAN: |
| PRINT_WARN("Link failure on %s (CHPID 0x%X) - " |
| "there is a network problem or " |
| "someone pulled the cable or " |
| "disabled the port.\n", |
| QETH_CARD_IFNAME(card), |
| card->info.chpid); |
| card->lan_online = 0; |
| netif_carrier_off(card->dev); |
| return NULL; |
| case IPA_CMD_STARTLAN: |
| PRINT_INFO("Link reestablished on %s " |
| "(CHPID 0x%X). Scheduling " |
| "IP address reset.\n", |
| QETH_CARD_IFNAME(card), |
| card->info.chpid); |
| card->lan_online = 1; |
| netif_carrier_on(card->dev); |
| qeth_reset_ip_addresses(card); |
| return NULL; |
| case IPA_CMD_REGISTER_LOCAL_ADDR: |
| QETH_DBF_TEXT(trace,3, "irla"); |
| break; |
| case IPA_CMD_UNREGISTER_LOCAL_ADDR: |
| QETH_DBF_TEXT(trace,3, "urla"); |
| break; |
| default: |
| PRINT_WARN("Received data is IPA " |
| "but not a reply!\n"); |
| break; |
| } |
| } |
| } |
| return cmd; |
| } |
| |
| /** |
| * wake all waiting ipa commands |
| */ |
| static void |
| qeth_clear_ipacmd_list(struct qeth_card *card) |
| { |
| struct qeth_reply *reply, *r; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace, 4, "clipalst"); |
| |
| spin_lock_irqsave(&card->lock, flags); |
| list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| qeth_get_reply(reply); |
| reply->rc = -EIO; |
| reply->received = 1; |
| list_del_init(&reply->list); |
| wake_up(&reply->wait_q); |
| qeth_put_reply(reply); |
| } |
| spin_unlock_irqrestore(&card->lock, flags); |
| } |
| |
| static void |
| qeth_send_control_data_cb(struct qeth_channel *channel, |
| struct qeth_cmd_buffer *iob) |
| { |
| struct qeth_card *card; |
| struct qeth_reply *reply, *r; |
| struct qeth_ipa_cmd *cmd; |
| unsigned long flags; |
| int keep_reply; |
| |
| QETH_DBF_TEXT(trace,4,"sndctlcb"); |
| |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| if (qeth_check_idx_response(iob->data)) { |
| qeth_clear_ipacmd_list(card); |
| qeth_schedule_recovery(card); |
| goto out; |
| } |
| |
| cmd = qeth_check_ipa_data(card, iob); |
| if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) |
| goto out; |
| |
| spin_lock_irqsave(&card->lock, flags); |
| list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || |
| ((cmd) && (reply->seqno == cmd->hdr.seqno))) { |
| qeth_get_reply(reply); |
| list_del_init(&reply->list); |
| spin_unlock_irqrestore(&card->lock, flags); |
| keep_reply = 0; |
| if (reply->callback != NULL) { |
| if (cmd) { |
| reply->offset = (__u16)((char*)cmd - |
| (char *)iob->data); |
| keep_reply = reply->callback(card, |
| reply, |
| (unsigned long)cmd); |
| } |
| else |
| keep_reply = reply->callback(card, |
| reply, |
| (unsigned long)iob); |
| } |
| if (cmd) |
| reply->rc = (u16) cmd->hdr.return_code; |
| else if (iob->rc) |
| reply->rc = iob->rc; |
| if (keep_reply) { |
| spin_lock_irqsave(&card->lock, flags); |
| list_add_tail(&reply->list, |
| &card->cmd_waiter_list); |
| spin_unlock_irqrestore(&card->lock, flags); |
| } else { |
| reply->received = 1; |
| wake_up(&reply->wait_q); |
| } |
| qeth_put_reply(reply); |
| goto out; |
| } |
| } |
| spin_unlock_irqrestore(&card->lock, flags); |
| out: |
| memcpy(&card->seqno.pdu_hdr_ack, |
| QETH_PDU_HEADER_SEQ_NO(iob->data), |
| QETH_SEQ_NO_LENGTH); |
| qeth_release_buffer(channel,iob); |
| } |
| |
| static int |
| qeth_send_control_data(struct qeth_card *card, int len, |
| struct qeth_cmd_buffer *iob, |
| int (*reply_cb) |
| (struct qeth_card *, struct qeth_reply*, unsigned long), |
| void *reply_param) |
| |
| { |
| int rc; |
| unsigned long flags; |
| struct qeth_reply *reply; |
| struct timer_list timer; |
| |
| QETH_DBF_TEXT(trace, 2, "sendctl"); |
| |
| qeth_setup_ccw(&card->write,iob->data,len); |
| |
| memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| card->seqno.trans_hdr++; |
| |
| memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), |
| &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); |
| card->seqno.pdu_hdr++; |
| memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), |
| &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); |
| iob->callback = qeth_release_buffer; |
| |
| reply = qeth_alloc_reply(card); |
| if (!reply) { |
| PRINT_WARN("Could no alloc qeth_reply!\n"); |
| return -ENOMEM; |
| } |
| reply->callback = reply_cb; |
| reply->param = reply_param; |
| if (card->state == CARD_STATE_DOWN) |
| reply->seqno = QETH_IDX_COMMAND_SEQNO; |
| else |
| reply->seqno = card->seqno.ipa++; |
| init_timer(&timer); |
| timer.function = qeth_cmd_timeout; |
| timer.data = (unsigned long) reply; |
| if (IS_IPA(iob->data)) |
| timer.expires = jiffies + QETH_IPA_TIMEOUT; |
| else |
| timer.expires = jiffies + QETH_TIMEOUT; |
| init_waitqueue_head(&reply->wait_q); |
| spin_lock_irqsave(&card->lock, flags); |
| list_add_tail(&reply->list, &card->cmd_waiter_list); |
| spin_unlock_irqrestore(&card->lock, flags); |
| QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN); |
| wait_event(card->wait_q, |
| atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0); |
| QETH_DBF_TEXT(trace, 6, "noirqpnd"); |
| spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
| rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, |
| (addr_t) iob, 0, 0); |
| spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); |
| if (rc){ |
| PRINT_WARN("qeth_send_control_data: " |
| "ccw_device_start rc = %i\n", rc); |
| QETH_DBF_TEXT_(trace, 2, " err%d", rc); |
| spin_lock_irqsave(&card->lock, flags); |
| list_del_init(&reply->list); |
| qeth_put_reply(reply); |
| spin_unlock_irqrestore(&card->lock, flags); |
| qeth_release_buffer(iob->channel, iob); |
| atomic_set(&card->write.irq_pending, 0); |
| wake_up(&card->wait_q); |
| return rc; |
| } |
| add_timer(&timer); |
| wait_event(reply->wait_q, reply->received); |
| del_timer_sync(&timer); |
| rc = reply->rc; |
| qeth_put_reply(reply); |
| return rc; |
| } |
| |
| static int |
| qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| int (*reply_cb) |
| (struct qeth_card *,struct qeth_reply*, unsigned long), |
| void *reply_param) |
| { |
| int rc; |
| char prot_type; |
| |
| QETH_DBF_TEXT(trace,4,"sendipa"); |
| |
| memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| |
| if (card->options.layer2) |
| prot_type = QETH_PROT_LAYER2; |
| else |
| prot_type = QETH_PROT_TCPIP; |
| |
| memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1); |
| memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| |
| rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob, |
| reply_cb, reply_param); |
| return rc; |
| } |
| |
| |
| static int |
| qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup, 2, "cmenblcb"); |
| |
| iob = (struct qeth_cmd_buffer *) data; |
| memcpy(&card->token.cm_filter_r, |
| QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| QETH_MPC_TOKEN_LENGTH); |
| QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); |
| return 0; |
| } |
| |
| static int |
| qeth_cm_enable(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup,2,"cmenable"); |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); |
| memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), |
| &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), |
| &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); |
| |
| rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, |
| qeth_cm_enable_cb, NULL); |
| return rc; |
| } |
| |
| static int |
| qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup, 2, "cmsetpcb"); |
| |
| iob = (struct qeth_cmd_buffer *) data; |
| memcpy(&card->token.cm_connection_r, |
| QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), |
| QETH_MPC_TOKEN_LENGTH); |
| QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); |
| return 0; |
| } |
| |
| static int |
| qeth_cm_setup(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup,2,"cmsetup"); |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); |
| memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), |
| &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), |
| &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), |
| &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); |
| rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, |
| qeth_cm_setup_cb, NULL); |
| return rc; |
| |
| } |
| |
| static int |
| qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| |
| __u16 mtu, framesize; |
| __u16 len; |
| __u8 link_type; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup, 2, "ulpenacb"); |
| |
| iob = (struct qeth_cmd_buffer *) data; |
| memcpy(&card->token.ulp_filter_r, |
| QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| QETH_MPC_TOKEN_LENGTH); |
| if (qeth_get_mtu_out_of_mpc(card->info.type)) { |
| memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); |
| mtu = qeth_get_mtu_outof_framesize(framesize); |
| if (!mtu) { |
| iob->rc = -EINVAL; |
| QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); |
| return 0; |
| } |
| card->info.max_mtu = mtu; |
| card->info.initial_mtu = mtu; |
| card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; |
| } else { |
| card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); |
| card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); |
| card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| } |
| |
| memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); |
| if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { |
| memcpy(&link_type, |
| QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); |
| card->info.link_type = link_type; |
| } else |
| card->info.link_type = 0; |
| QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); |
| return 0; |
| } |
| |
| static int |
| qeth_ulp_enable(struct qeth_card *card) |
| { |
| int rc; |
| char prot_type; |
| struct qeth_cmd_buffer *iob; |
| |
| /*FIXME: trace view callbacks*/ |
| QETH_DBF_TEXT(setup,2,"ulpenabl"); |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); |
| |
| *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = |
| (__u8) card->info.portno; |
| if (card->options.layer2) |
| prot_type = QETH_PROT_LAYER2; |
| else |
| prot_type = QETH_PROT_TCPIP; |
| |
| memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1); |
| memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), |
| &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), |
| &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), |
| card->info.portname, 9); |
| rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, |
| qeth_ulp_enable_cb, NULL); |
| return rc; |
| |
| } |
| |
| static inline __u16 |
| __raw_devno_from_bus_id(char *id) |
| { |
| id += (strlen(id) - 4); |
| return (__u16) simple_strtoul(id, &id, 16); |
| } |
| |
| static int |
| qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup, 2, "ulpstpcb"); |
| |
| iob = (struct qeth_cmd_buffer *) data; |
| memcpy(&card->token.ulp_connection_r, |
| QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
| QETH_MPC_TOKEN_LENGTH); |
| QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); |
| return 0; |
| } |
| |
| static int |
| qeth_ulp_setup(struct qeth_card *card) |
| { |
| int rc; |
| __u16 temp; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup,2,"ulpsetup"); |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); |
| |
| memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), |
| &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), |
| &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), |
| &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); |
| |
| temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card)); |
| memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2); |
| temp = (card->info.cula << 8) + card->info.unit_addr2; |
| memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); |
| rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, |
| qeth_ulp_setup_cb, NULL); |
| return rc; |
| } |
| |
| static inline int |
| qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf, |
| unsigned int qdio_error, |
| unsigned int siga_error) |
| { |
| int rc = 0; |
| |
| if (qdio_error || siga_error) { |
| QETH_DBF_TEXT(trace, 2, "qdinerr"); |
| QETH_DBF_TEXT(qerr, 2, "qdinerr"); |
| QETH_DBF_TEXT_(qerr, 2, " F15=%02X", |
| buf->buffer->element[15].flags & 0xff); |
| QETH_DBF_TEXT_(qerr, 2, " F14=%02X", |
| buf->buffer->element[14].flags & 0xff); |
| QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error); |
| QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error); |
| rc = 1; |
| } |
| return rc; |
| } |
| |
| static inline struct sk_buff * |
| qeth_get_skb(unsigned int length) |
| { |
| struct sk_buff* skb; |
| #ifdef CONFIG_QETH_VLAN |
| if ((skb = dev_alloc_skb(length + VLAN_HLEN))) |
| skb_reserve(skb, VLAN_HLEN); |
| #else |
| skb = dev_alloc_skb(length); |
| #endif |
| return skb; |
| } |
| |
| static inline struct sk_buff * |
| qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer, |
| struct qdio_buffer_element **__element, int *__offset, |
| struct qeth_hdr **hdr) |
| { |
| struct qdio_buffer_element *element = *__element; |
| int offset = *__offset; |
| struct sk_buff *skb = NULL; |
| int skb_len; |
| void *data_ptr; |
| int data_len; |
| |
| QETH_DBF_TEXT(trace,6,"nextskb"); |
| /* qeth_hdr must not cross element boundaries */ |
| if (element->length < offset + sizeof(struct qeth_hdr)){ |
| if (qeth_is_last_sbale(element)) |
| return NULL; |
| element++; |
| offset = 0; |
| if (element->length < sizeof(struct qeth_hdr)) |
| return NULL; |
| } |
| *hdr = element->addr + offset; |
| |
| offset += sizeof(struct qeth_hdr); |
| if (card->options.layer2) |
| skb_len = (*hdr)->hdr.l2.pkt_length; |
| else |
| skb_len = (*hdr)->hdr.l3.length; |
| |
| if (!skb_len) |
| return NULL; |
| if (card->options.fake_ll){ |
| if(card->dev->type == ARPHRD_IEEE802_TR){ |
| if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR))) |
| goto no_mem; |
| skb_reserve(skb,QETH_FAKE_LL_LEN_TR); |
| } else { |
| if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH))) |
| goto no_mem; |
| skb_reserve(skb,QETH_FAKE_LL_LEN_ETH); |
| } |
| } else if (!(skb = qeth_get_skb(skb_len))) |
| goto no_mem; |
| data_ptr = element->addr + offset; |
| while (skb_len) { |
| data_len = min(skb_len, (int)(element->length - offset)); |
| if (data_len) |
| memcpy(skb_put(skb, data_len), data_ptr, data_len); |
| skb_len -= data_len; |
| if (skb_len){ |
| if (qeth_is_last_sbale(element)){ |
| QETH_DBF_TEXT(trace,4,"unexeob"); |
| QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card)); |
| QETH_DBF_TEXT(qerr,2,"unexeob"); |
| QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card)); |
| QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer)); |
| dev_kfree_skb_any(skb); |
| card->stats.rx_errors++; |
| return NULL; |
| } |
| element++; |
| offset = 0; |
| data_ptr = element->addr; |
| } else { |
| offset += data_len; |
| } |
| } |
| *__element = element; |
| *__offset = offset; |
| return skb; |
| no_mem: |
| if (net_ratelimit()){ |
| PRINT_WARN("No memory for packet received on %s.\n", |
| QETH_CARD_IFNAME(card)); |
| QETH_DBF_TEXT(trace,2,"noskbmem"); |
| QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card)); |
| } |
| card->stats.rx_dropped++; |
| return NULL; |
| } |
| |
| static inline __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->mac.raw = skb->data; |
| skb_pull(skb, ETH_HLEN ); |
| eth = eth_hdr(skb); |
| |
| if (*eth->h_dest & 1) { |
| if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0) |
| skb->pkt_type = PACKET_BROADCAST; |
| else |
| skb->pkt_type = PACKET_MULTICAST; |
| } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN)) |
| skb->pkt_type = PACKET_OTHERHOST; |
| |
| if (ntohs(eth->h_proto) >= 1536) |
| return eth->h_proto; |
| if (*(unsigned short *) (skb->data) == 0xFFFF) |
| return htons(ETH_P_802_3); |
| return htons(ETH_P_802_2); |
| } |
| |
| static inline void |
| qeth_rebuild_skb_fake_ll_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->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR; |
| /* this is a fake ethernet header */ |
| fake_hdr = (struct trh_hdr *) skb->mac.raw; |
| |
| /* the destination MAC address */ |
| switch (skb->pkt_type){ |
| case PACKET_MULTICAST: |
| switch (skb->protocol){ |
| #ifdef CONFIG_QETH_IPV6 |
| case __constant_htons(ETH_P_IPV6): |
| ndisc_mc_map((struct in6_addr *) |
| skb->data + QETH_FAKE_LL_V6_ADDR_POS, |
| fake_hdr->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 inline 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->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH; |
| /* this is a fake ethernet header */ |
| fake_hdr = (struct ethhdr *) skb->mac.raw; |
| |
| /* the destination MAC address */ |
| switch (skb->pkt_type){ |
| case PACKET_MULTICAST: |
| switch (skb->protocol){ |
| #ifdef CONFIG_QETH_IPV6 |
| case __constant_htons(ETH_P_IPV6): |
| ndisc_mc_map((struct in6_addr *) |
| skb->data + QETH_FAKE_LL_V6_ADDR_POS, |
| fake_hdr->h_dest, card->dev, 0); |
| break; |
| #endif /* CONFIG_QETH_IPV6 */ |
| case __constant_htons(ETH_P_IP): |
| ip_hdr = (struct iphdr *)skb->data; |
| 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_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb, |
| struct qeth_hdr *hdr) |
| { |
| #ifdef CONFIG_QETH_VLAN |
| u16 *vlan_tag; |
| |
| if (hdr->hdr.l3.ext_flags & |
| (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) { |
| vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN); |
| *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)? |
| hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); |
| *(vlan_tag + 1) = skb->protocol; |
| skb->protocol = __constant_htons(ETH_P_8021Q); |
| } |
| #endif /* CONFIG_QETH_VLAN */ |
| } |
| |
| static inline __u16 |
| qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, |
| struct qeth_hdr *hdr) |
| { |
| unsigned short vlan_id = 0; |
| #ifdef CONFIG_QETH_VLAN |
| struct vlan_hdr *vhdr; |
| #endif |
| |
| skb->pkt_type = PACKET_HOST; |
| skb->protocol = qeth_type_trans(skb, skb->dev); |
| if (card->options.checksum_type == NO_CHECKSUMMING) |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| else |
| skb->ip_summed = CHECKSUM_NONE; |
| #ifdef CONFIG_QETH_VLAN |
| if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) { |
| vhdr = (struct vlan_hdr *) skb->data; |
| skb->protocol = |
| __constant_htons(vhdr->h_vlan_encapsulated_proto); |
| vlan_id = hdr->hdr.l2.vlan_id; |
| skb_pull(skb, VLAN_HLEN); |
| } |
| #endif |
| return vlan_id; |
| } |
| |
| static inline void |
| qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, |
| struct qeth_hdr *hdr) |
| { |
| #ifdef CONFIG_QETH_IPV6 |
| if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) { |
| skb->pkt_type = PACKET_HOST; |
| skb->protocol = qeth_type_trans(skb, card->dev); |
| return; |
| } |
| #endif /* CONFIG_QETH_IPV6 */ |
| skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 : |
| ETH_P_IP); |
| switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){ |
| case QETH_CAST_UNICAST: |
| skb->pkt_type = PACKET_HOST; |
| break; |
| case QETH_CAST_MULTICAST: |
| skb->pkt_type = PACKET_MULTICAST; |
| card->stats.multicast++; |
| break; |
| case QETH_CAST_BROADCAST: |
| skb->pkt_type = PACKET_BROADCAST; |
| card->stats.multicast++; |
| break; |
| case QETH_CAST_ANYCAST: |
| case QETH_CAST_NOCAST: |
| default: |
| skb->pkt_type = PACKET_HOST; |
| } |
| qeth_rebuild_skb_vlan(card, skb, hdr); |
| if (card->options.fake_ll) |
| qeth_rebuild_skb_fake_ll(card, skb, hdr); |
| else |
| skb->mac.raw = skb->data; |
| skb->ip_summed = card->options.checksum_type; |
| if (card->options.checksum_type == HW_CHECKSUMMING){ |
| if ( (hdr->hdr.l3.ext_flags & |
| (QETH_HDR_EXT_CSUM_HDR_REQ | |
| QETH_HDR_EXT_CSUM_TRANSP_REQ)) == |
| (QETH_HDR_EXT_CSUM_HDR_REQ | |
| QETH_HDR_EXT_CSUM_TRANSP_REQ) ) |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| else |
| skb->ip_summed = SW_CHECKSUMMING; |
| } |
| } |
| |
| static inline void |
| qeth_process_inbound_buffer(struct qeth_card *card, |
| struct qeth_qdio_buffer *buf, int index) |
| { |
| struct qdio_buffer_element *element; |
| struct sk_buff *skb; |
| struct qeth_hdr *hdr; |
| int offset; |
| int rxrc; |
| __u16 vlan_tag = 0; |
| |
| /* get first element of current buffer */ |
| element = (struct qdio_buffer_element *)&buf->buffer->element[0]; |
| offset = 0; |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.bufs_rec++; |
| #endif |
| while((skb = qeth_get_next_skb(card, buf->buffer, &element, |
| &offset, &hdr))) { |
| skb->dev = card->dev; |
| if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) |
| vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr); |
| else |
| qeth_rebuild_skb(card, skb, hdr); |
| /* is device UP ? */ |
| if (!(card->dev->flags & IFF_UP)){ |
| dev_kfree_skb_any(skb); |
| continue; |
| } |
| #ifdef CONFIG_QETH_VLAN |
| if (vlan_tag) |
| vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag); |
| else |
| #endif |
| rxrc = netif_rx(skb); |
| card->dev->last_rx = jiffies; |
| card->stats.rx_packets++; |
| card->stats.rx_bytes += skb->len; |
| } |
| } |
| |
| static inline struct qeth_buffer_pool_entry * |
| qeth_get_buffer_pool_entry(struct qeth_card *card) |
| { |
| struct qeth_buffer_pool_entry *entry; |
| |
| QETH_DBF_TEXT(trace, 6, "gtbfplen"); |
| if (!list_empty(&card->qdio.in_buf_pool.entry_list)) { |
| entry = list_entry(card->qdio.in_buf_pool.entry_list.next, |
| struct qeth_buffer_pool_entry, list); |
| list_del_init(&entry->list); |
| return entry; |
| } |
| return NULL; |
| } |
| |
| static inline void |
| qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf) |
| { |
| struct qeth_buffer_pool_entry *pool_entry; |
| int i; |
| |
| pool_entry = qeth_get_buffer_pool_entry(card); |
| /* |
| * since the buffer is accessed only from the input_tasklet |
| * there shouldn't be a need to synchronize; also, since we use |
| * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off |
| * buffers |
| */ |
| BUG_ON(!pool_entry); |
| |
| buf->pool_entry = pool_entry; |
| for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){ |
| buf->buffer->element[i].length = PAGE_SIZE; |
| buf->buffer->element[i].addr = pool_entry->elements[i]; |
| if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) |
| buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; |
| else |
| buf->buffer->element[i].flags = 0; |
| } |
| buf->state = QETH_QDIO_BUF_EMPTY; |
| } |
| |
| static inline void |
| qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| struct qeth_qdio_out_buffer *buf) |
| { |
| int i; |
| struct sk_buff *skb; |
| |
| /* is PCI flag set on buffer? */ |
| if (buf->buffer->element[0].flags & 0x40) |
| atomic_dec(&queue->set_pci_flags_count); |
| |
| while ((skb = skb_dequeue(&buf->skb_list))){ |
| atomic_dec(&skb->users); |
| dev_kfree_skb_any(skb); |
| } |
| qeth_eddp_buf_release_contexts(buf); |
| for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){ |
| buf->buffer->element[i].length = 0; |
| buf->buffer->element[i].addr = NULL; |
| buf->buffer->element[i].flags = 0; |
| } |
| buf->next_element_to_fill = 0; |
| atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); |
| } |
| |
| static inline void |
| qeth_queue_input_buffer(struct qeth_card *card, int index) |
| { |
| struct qeth_qdio_q *queue = card->qdio.in_q; |
| int count; |
| int i; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,6,"queinbuf"); |
| count = (index < queue->next_buf_to_init)? |
| card->qdio.in_buf_pool.buf_count - |
| (queue->next_buf_to_init - index) : |
| card->qdio.in_buf_pool.buf_count - |
| (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); |
| /* only requeue at a certain threshold to avoid SIGAs */ |
| if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){ |
| for (i = queue->next_buf_to_init; |
| i < queue->next_buf_to_init + count; ++i) |
| qeth_init_input_buffer(card, |
| &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]); |
| /* |
| * according to old code it should be avoided to requeue all |
| * 128 buffers in order to benefit from PCI avoidance. |
| * this function keeps at least one buffer (the buffer at |
| * 'index') un-requeued -> this buffer is the first buffer that |
| * will be requeued the next time |
| */ |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.inbound_do_qdio_cnt++; |
| card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros(); |
| #endif |
| rc = do_QDIO(CARD_DDEV(card), |
| QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT, |
| 0, queue->next_buf_to_init, count, NULL); |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.inbound_do_qdio_time += qeth_get_micros() - |
| card->perf_stats.inbound_do_qdio_start_time; |
| #endif |
| if (rc){ |
| PRINT_WARN("qeth_queue_input_buffer's do_QDIO " |
| "return %i (device %s).\n", |
| rc, CARD_DDEV_ID(card)); |
| QETH_DBF_TEXT(trace,2,"qinberr"); |
| QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card)); |
| } |
| queue->next_buf_to_init = (queue->next_buf_to_init + count) % |
| QDIO_MAX_BUFFERS_PER_Q; |
| } |
| } |
| |
| static inline void |
| qeth_put_buffer_pool_entry(struct qeth_card *card, |
| struct qeth_buffer_pool_entry *entry) |
| { |
| QETH_DBF_TEXT(trace, 6, "ptbfplen"); |
| list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); |
| } |
| |
| static void |
| qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status, |
| unsigned int qdio_err, unsigned int siga_err, |
| unsigned int queue, int first_element, int count, |
| unsigned long card_ptr) |
| { |
| struct net_device *net_dev; |
| struct qeth_card *card; |
| struct qeth_qdio_buffer *buffer; |
| int index; |
| int i; |
| |
| QETH_DBF_TEXT(trace, 6, "qdinput"); |
| card = (struct qeth_card *) card_ptr; |
| net_dev = card->dev; |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.inbound_cnt++; |
| card->perf_stats.inbound_start_time = qeth_get_micros(); |
| #endif |
| if (status & QDIO_STATUS_LOOK_FOR_ERROR) { |
| if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){ |
| QETH_DBF_TEXT(trace, 1,"qdinchk"); |
| QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); |
| QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count); |
| QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status); |
| qeth_schedule_recovery(card); |
| return; |
| } |
| } |
| for (i = first_element; i < (first_element + count); ++i) { |
| index = i % QDIO_MAX_BUFFERS_PER_Q; |
| buffer = &card->qdio.in_q->bufs[index]; |
| if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) && |
| qeth_check_for_inbound_error(buffer, qdio_err, siga_err))) |
| qeth_process_inbound_buffer(card, buffer, index); |
| /* clear buffer and give back to hardware */ |
| qeth_put_buffer_pool_entry(card, buffer->pool_entry); |
| qeth_queue_input_buffer(card, index); |
| } |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.inbound_time += qeth_get_micros() - |
| card->perf_stats.inbound_start_time; |
| #endif |
| } |
| |
| static inline int |
| qeth_handle_send_error(struct qeth_card *card, |
| struct qeth_qdio_out_buffer *buffer, |
| int qdio_err, int siga_err) |
| { |
| int sbalf15 = buffer->buffer->element[15].flags & 0xff; |
| int cc = siga_err & 3; |
| |
| QETH_DBF_TEXT(trace, 6, "hdsnderr"); |
| switch (cc) { |
| case 0: |
| if (qdio_err){ |
| QETH_DBF_TEXT(trace, 1,"lnkfail"); |
| QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); |
| QETH_DBF_TEXT_(trace,1,"%04x %02x", |
| (u16)qdio_err, (u8)sbalf15); |
| return QETH_SEND_ERROR_LINK_FAILURE; |
| } |
| return QETH_SEND_ERROR_NONE; |
| case 2: |
| if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) { |
| QETH_DBF_TEXT(trace, 1, "SIGAcc2B"); |
| QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); |
| return QETH_SEND_ERROR_KICK_IT; |
| } |
| if ((sbalf15 >= 15) && (sbalf15 <= 31)) |
| return QETH_SEND_ERROR_RETRY; |
| return QETH_SEND_ERROR_LINK_FAILURE; |
| /* look at qdio_error and sbalf 15 */ |
| case 1: |
| QETH_DBF_TEXT(trace, 1, "SIGAcc1"); |
| QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); |
| return QETH_SEND_ERROR_LINK_FAILURE; |
| case 3: |
| QETH_DBF_TEXT(trace, 1, "SIGAcc3"); |
| QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); |
| return QETH_SEND_ERROR_KICK_IT; |
| } |
| return QETH_SEND_ERROR_LINK_FAILURE; |
| } |
| |
| void |
| qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int, |
| int index, int count) |
| { |
| struct qeth_qdio_out_buffer *buf; |
| int rc; |
| int i; |
| |
| QETH_DBF_TEXT(trace, 6, "flushbuf"); |
| |
| for (i = index; i < index + count; ++i) { |
| buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; |
| buf->buffer->element[buf->next_element_to_fill - 1].flags |= |
| SBAL_FLAGS_LAST_ENTRY; |
| |
| if (queue->card->info.type == QETH_CARD_TYPE_IQD) |
| continue; |
| |
| if (!queue->do_pack){ |
| if ((atomic_read(&queue->used_buffers) >= |
| (QETH_HIGH_WATERMARK_PACK - |
| QETH_WATERMARK_PACK_FUZZ)) && |
| !atomic_read(&queue->set_pci_flags_count)){ |
| /* it's likely that we'll go to packing |
| * mode soon */ |
| atomic_inc(&queue->set_pci_flags_count); |
| buf->buffer->element[0].flags |= 0x40; |
| } |
| } else { |
| if (!atomic_read(&queue->set_pci_flags_count)){ |
| /* |
| * there's no outstanding PCI any more, so we |
| * have to request a PCI to be sure the the PCI |
| * will wake at some time in the future then we |
| * can flush packed buffers that might still be |
| * hanging around, which can happen if no |
| * further send was requested by the stack |
| */ |
| atomic_inc(&queue->set_pci_flags_count); |
| buf->buffer->element[0].flags |= 0x40; |
| } |
| } |
| } |
| |
| queue->card->dev->trans_start = jiffies; |
| #ifdef CONFIG_QETH_PERF_STATS |
| queue->card->perf_stats.outbound_do_qdio_cnt++; |
| queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros(); |
| #endif |
| if (under_int) |
| rc = do_QDIO(CARD_DDEV(queue->card), |
| QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT, |
| queue->queue_no, index, count, NULL); |
| else |
| rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT, |
| queue->queue_no, index, count, NULL); |
| #ifdef CONFIG_QETH_PERF_STATS |
| queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() - |
| queue->card->perf_stats.outbound_do_qdio_start_time; |
| #endif |
| if (rc){ |
| QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO " |
| "returned error (%i) on device %s.", |
| rc, CARD_DDEV_ID(queue->card)); |
| QETH_DBF_TEXT(trace, 2, "flushbuf"); |
| QETH_DBF_TEXT_(trace, 2, " err%d", rc); |
| queue->card->stats.tx_errors += count; |
| /* this must not happen under normal circumstances. if it |
| * happens something is really wrong -> recover */ |
| qeth_schedule_recovery(queue->card); |
| return; |
| } |
| atomic_add(count, &queue->used_buffers); |
| #ifdef CONFIG_QETH_PERF_STATS |
| queue->card->perf_stats.bufs_sent += count; |
| #endif |
| } |
| |
| /* |
| * Switched to packing state if the number of used buffers on a queue |
| * reaches a certain limit. |
| */ |
| static inline void |
| qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) |
| { |
| if (!queue->do_pack) { |
| if (atomic_read(&queue->used_buffers) |
| >= QETH_HIGH_WATERMARK_PACK){ |
| /* switch non-PACKING -> PACKING */ |
| QETH_DBF_TEXT(trace, 6, "np->pack"); |
| #ifdef CONFIG_QETH_PERF_STATS |
| queue->card->perf_stats.sc_dp_p++; |
| #endif |
| queue->do_pack = 1; |
| } |
| } |
| } |
| |
| /* |
| * Switches from packing to non-packing mode. If there is a packing |
| * buffer on the queue this buffer will be prepared to be flushed. |
| * In that case 1 is returned to inform the caller. If no buffer |
| * has to be flushed, zero is returned. |
| */ |
| static inline int |
| qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) |
| { |
| struct qeth_qdio_out_buffer *buffer; |
| int flush_count = 0; |
| |
| if (queue->do_pack) { |
| if (atomic_read(&queue->used_buffers) |
| <= QETH_LOW_WATERMARK_PACK) { |
| /* switch PACKING -> non-PACKING */ |
| QETH_DBF_TEXT(trace, 6, "pack->np"); |
| #ifdef CONFIG_QETH_PERF_STATS |
| queue->card->perf_stats.sc_p_dp++; |
| #endif |
| queue->do_pack = 0; |
| /* flush packing buffers */ |
| buffer = &queue->bufs[queue->next_buf_to_fill]; |
| if ((atomic_read(&buffer->state) == |
| QETH_QDIO_BUF_EMPTY) && |
| (buffer->next_element_to_fill > 0)) { |
| atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED); |
| flush_count++; |
| queue->next_buf_to_fill = |
| (queue->next_buf_to_fill + 1) % |
| QDIO_MAX_BUFFERS_PER_Q; |
| } |
| } |
| } |
| return flush_count; |
| } |
| |
| /* |
| * Called to flush a packing buffer if no more pci flags are on the queue. |
| * Checks if there is a packing buffer and prepares it to be flushed. |
| * In that case returns 1, otherwise zero. |
| */ |
| static inline int |
| qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) |
| { |
| struct qeth_qdio_out_buffer *buffer; |
| |
| buffer = &queue->bufs[queue->next_buf_to_fill]; |
| if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && |
| (buffer->next_element_to_fill > 0)){ |
| /* it's a packing buffer */ |
| atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); |
| queue->next_buf_to_fill = |
| (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; |
| return 1; |
| } |
| return 0; |
| } |
| |
| static inline void |
| qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) |
| { |
| int index; |
| int flush_cnt = 0; |
| int q_was_packing = 0; |
| |
| /* |
| * check if weed have to switch to non-packing mode or if |
| * we have to get a pci flag out on the queue |
| */ |
| if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || |
| !atomic_read(&queue->set_pci_flags_count)){ |
| if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == |
| QETH_OUT_Q_UNLOCKED) { |
| /* |
| * If we get in here, there was no action in |
| * do_send_packet. So, we check if there is a |
| * packing buffer to be flushed here. |
| */ |
| netif_stop_queue(queue->card->dev); |
| index = queue->next_buf_to_fill; |
| q_was_packing = queue->do_pack; |
| flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); |
| if (!flush_cnt && |
| !atomic_read(&queue->set_pci_flags_count)) |
| flush_cnt += |
| qeth_flush_buffers_on_no_pci(queue); |
| #ifdef CONFIG_QETH_PERF_STATS |
| if (q_was_packing) |
| queue->card->perf_stats.bufs_sent_pack += |
| flush_cnt; |
| #endif |
| if (flush_cnt) |
| qeth_flush_buffers(queue, 1, index, flush_cnt); |
| atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| } |
| } |
| } |
| |
| static void |
| qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status, |
| unsigned int qdio_error, unsigned int siga_error, |
| unsigned int __queue, int first_element, int count, |
| unsigned long card_ptr) |
| { |
| struct qeth_card *card = (struct qeth_card *) card_ptr; |
| struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; |
| struct qeth_qdio_out_buffer *buffer; |
| int i; |
| |
| QETH_DBF_TEXT(trace, 6, "qdouhdl"); |
| if (status & QDIO_STATUS_LOOK_FOR_ERROR) { |
| if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){ |
| QETH_DBF_SPRINTF(trace, 2, "On device %s: " |
| "received active check " |
| "condition (0x%08x).", |
| CARD_BUS_ID(card), status); |
| QETH_DBF_TEXT(trace, 2, "chkcond"); |
| QETH_DBF_TEXT_(trace, 2, "%08x", status); |
| netif_stop_queue(card->dev); |
| qeth_schedule_recovery(card); |
| return; |
| } |
| } |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.outbound_handler_cnt++; |
| card->perf_stats.outbound_handler_start_time = qeth_get_micros(); |
| #endif |
| for(i = first_element; i < (first_element + count); ++i){ |
| buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; |
| /*we only handle the KICK_IT error by doing a recovery */ |
| if (qeth_handle_send_error(card, buffer, qdio_error, siga_error) |
| == QETH_SEND_ERROR_KICK_IT){ |
| netif_stop_queue(card->dev); |
| qeth_schedule_recovery(card); |
| return; |
| } |
| qeth_clear_output_buffer(queue, buffer); |
| } |
| atomic_sub(count, &queue->used_buffers); |
| /* check if we need to do something on this outbound queue */ |
| if (card->info.type != QETH_CARD_TYPE_IQD) |
| qeth_check_outbound_queue(queue); |
| |
| netif_wake_queue(queue->card->dev); |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.outbound_handler_time += qeth_get_micros() - |
| card->perf_stats.outbound_handler_start_time; |
| #endif |
| } |
| |
| static void |
| qeth_create_qib_param_field(struct qeth_card *card, char *param_field) |
| { |
| |
| param_field[0] = _ascebc['P']; |
| param_field[1] = _ascebc['C']; |
| param_field[2] = _ascebc['I']; |
| param_field[3] = _ascebc['T']; |
| *((unsigned int *) (¶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); |
| if (!ptr) { |
| while (j > 0) |
| free_page((unsigned long) |
| pool_entry->elements[--j]); |
| kfree(pool_entry); |
| qeth_free_buffer_pool(card); |
| return -ENOMEM; |
| } |
| pool_entry->elements[j] = ptr; |
| } |
| list_add(&pool_entry->init_list, |
| &card->qdio.init_pool.entry_list); |
| } |
| return 0; |
| } |
| |
| int |
| qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) |
| { |
| QETH_DBF_TEXT(trace, 2, "realcbp"); |
| |
| if ((card->state != CARD_STATE_DOWN) && |
| (card->state != CARD_STATE_RECOVER)) |
| return -EPERM; |
| |
| /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ |
| qeth_clear_working_pool_list(card); |
| qeth_free_buffer_pool(card); |
| card->qdio.in_buf_pool.buf_count = bufcnt; |
| card->qdio.init_pool.buf_count = bufcnt; |
| return qeth_alloc_buffer_pool(card); |
| } |
| |
| static int |
| qeth_alloc_qdio_buffers(struct qeth_card *card) |
| { |
| int i, j; |
| |
| QETH_DBF_TEXT(setup, 2, "allcqdbf"); |
| |
| if (card->qdio.state == QETH_QDIO_ALLOCATED) |
| return 0; |
| |
| card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL); |
| if (!card->qdio.in_q) |
| return - ENOMEM; |
| QETH_DBF_TEXT(setup, 2, "inq"); |
| QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *)); |
| memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); |
| /* give inbound qeth_qdio_buffers their qdio_buffers */ |
| for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| card->qdio.in_q->bufs[i].buffer = |
| &card->qdio.in_q->qdio_bufs[i]; |
| /* inbound buffer pool */ |
| if (qeth_alloc_buffer_pool(card)){ |
| kfree(card->qdio.in_q); |
| return -ENOMEM; |
| } |
| /* outbound */ |
| card->qdio.out_qs = |
| kmalloc(card->qdio.no_out_queues * |
| sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); |
| if (!card->qdio.out_qs){ |
| qeth_free_buffer_pool(card); |
| return -ENOMEM; |
| } |
| for (i = 0; i < card->qdio.no_out_queues; ++i){ |
| card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), |
| GFP_KERNEL); |
| if (!card->qdio.out_qs[i]){ |
| while (i > 0) |
| kfree(card->qdio.out_qs[--i]); |
| kfree(card->qdio.out_qs); |
| return -ENOMEM; |
| } |
| QETH_DBF_TEXT_(setup, 2, "outq %i", i); |
| QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *)); |
| memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); |
| card->qdio.out_qs[i]->queue_no = i; |
| /* give outbound qeth_qdio_buffers their qdio_buffers */ |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){ |
| card->qdio.out_qs[i]->bufs[j].buffer = |
| &card->qdio.out_qs[i]->qdio_bufs[j]; |
| skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. |
| skb_list); |
| INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); |
| } |
| } |
| card->qdio.state = QETH_QDIO_ALLOCATED; |
| return 0; |
| } |
| |
| static void |
| qeth_free_qdio_buffers(struct qeth_card *card) |
| { |
| int i, j; |
| |
| QETH_DBF_TEXT(trace, 2, "freeqdbf"); |
| if (card->qdio.state == QETH_QDIO_UNINITIALIZED) |
| return; |
| kfree(card->qdio.in_q); |
| /* inbound buffer pool */ |
| qeth_free_buffer_pool(card); |
| /* free outbound qdio_qs */ |
| for (i = 0; i < card->qdio.no_out_queues; ++i){ |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| qeth_clear_output_buffer(card->qdio.out_qs[i], |
| &card->qdio.out_qs[i]->bufs[j]); |
| kfree(card->qdio.out_qs[i]); |
| } |
| kfree(card->qdio.out_qs); |
| card->qdio.state = QETH_QDIO_UNINITIALIZED; |
| } |
| |
| static void |
| qeth_clear_qdio_buffers(struct qeth_card *card) |
| { |
| int i, j; |
| |
| QETH_DBF_TEXT(trace, 2, "clearqdbf"); |
| /* clear outbound buffers to free skbs */ |
| for (i = 0; i < card->qdio.no_out_queues; ++i) |
| if (card->qdio.out_qs[i]){ |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| qeth_clear_output_buffer(card->qdio.out_qs[i], |
| &card->qdio.out_qs[i]->bufs[j]); |
| } |
| } |
| |
| static void |
| qeth_init_qdio_info(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(setup, 4, "intqdinf"); |
| card->qdio.state = QETH_QDIO_UNINITIALIZED; |
| /* inbound */ |
| card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; |
| card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; |
| INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); |
| INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); |
| /* outbound */ |
| card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; |
| card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; |
| } |
| |
| static int |
| qeth_init_qdio_queues(struct qeth_card *card) |
| { |
| int i, j; |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "initqdqs"); |
| |
| /* inbound queue */ |
| memset(card->qdio.in_q->qdio_bufs, 0, |
| QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| qeth_initialize_working_pool_list(card); |
| /*give only as many buffers to hardware as we have buffer pool entries*/ |
| for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) |
| qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); |
| card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1; |
| rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, |
| card->qdio.in_buf_pool.buf_count - 1, NULL); |
| if (rc) { |
| QETH_DBF_TEXT_(setup, 2, "1err%d", rc); |
| return rc; |
| } |
| rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0); |
| if (rc) { |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| return rc; |
| } |
| /* outbound queue */ |
| for (i = 0; i < card->qdio.no_out_queues; ++i){ |
| memset(card->qdio.out_qs[i]->qdio_bufs, 0, |
| QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){ |
| qeth_clear_output_buffer(card->qdio.out_qs[i], |
| &card->qdio.out_qs[i]->bufs[j]); |
| } |
| card->qdio.out_qs[i]->card = card; |
| card->qdio.out_qs[i]->next_buf_to_fill = 0; |
| card->qdio.out_qs[i]->do_pack = 0; |
| atomic_set(&card->qdio.out_qs[i]->used_buffers,0); |
| atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); |
| atomic_set(&card->qdio.out_qs[i]->state, |
| QETH_OUT_Q_UNLOCKED); |
| } |
| return 0; |
| } |
| |
| static int |
| qeth_qdio_establish(struct qeth_card *card) |
| { |
| struct qdio_initialize init_data; |
| char *qib_param_field; |
| struct qdio_buffer **in_sbal_ptrs; |
| struct qdio_buffer **out_sbal_ptrs; |
| int i, j, k; |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "qdioest"); |
| |
| qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), |
| GFP_KERNEL); |
| if (!qib_param_field) |
| return -ENOMEM; |
| |
| memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char)); |
| |
| qeth_create_qib_param_field(card, qib_param_field); |
| qeth_create_qib_param_field_blkt(card, qib_param_field); |
| |
| in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), |
| GFP_KERNEL); |
| if (!in_sbal_ptrs) { |
| kfree(qib_param_field); |
| return -ENOMEM; |
| } |
| for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| in_sbal_ptrs[i] = (struct qdio_buffer *) |
| virt_to_phys(card->qdio.in_q->bufs[i].buffer); |
| |
| out_sbal_ptrs = |
| kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * |
| sizeof(void *), GFP_KERNEL); |
| if (!out_sbal_ptrs) { |
| kfree(in_sbal_ptrs); |
| kfree(qib_param_field); |
| return -ENOMEM; |
| } |
| for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i) |
| for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){ |
| out_sbal_ptrs[k] = (struct qdio_buffer *) |
| virt_to_phys(card->qdio.out_qs[i]-> |
| bufs[j].buffer); |
| } |
| |
| memset(&init_data, 0, sizeof(struct qdio_initialize)); |
| init_data.cdev = CARD_DDEV(card); |
| init_data.q_format = qeth_get_qdio_q_format(card); |
| init_data.qib_param_field_format = 0; |
| init_data.qib_param_field = qib_param_field; |
| init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD; |
| init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD; |
| init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD; |
| init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD; |
| init_data.no_input_qs = 1; |
| init_data.no_output_qs = card->qdio.no_out_queues; |
| init_data.input_handler = (qdio_handler_t *) |
| qeth_qdio_input_handler; |
| init_data.output_handler = (qdio_handler_t *) |
| qeth_qdio_output_handler; |
| init_data.int_parm = (unsigned long) card; |
| init_data.flags = QDIO_INBOUND_0COPY_SBALS | |
| QDIO_OUTBOUND_0COPY_SBALS | |
| QDIO_USE_OUTBOUND_PCIS; |
| init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
| init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; |
| |
| if (!(rc = qdio_initialize(&init_data))) |
| card->qdio.state = QETH_QDIO_ESTABLISHED; |
| |
| kfree(out_sbal_ptrs); |
| kfree(in_sbal_ptrs); |
| kfree(qib_param_field); |
| return rc; |
| } |
| |
| static int |
| qeth_qdio_activate(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(setup,3,"qdioact"); |
| return qdio_activate(CARD_DDEV(card), 0); |
| } |
| |
| static int |
| qeth_clear_channel(struct qeth_channel *channel) |
| { |
| unsigned long flags; |
| struct qeth_card *card; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"clearch"); |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); |
| spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| |
| if (rc) |
| return rc; |
| rc = wait_event_interruptible_timeout(card->wait_q, |
| channel->state==CH_STATE_STOPPED, QETH_TIMEOUT); |
| if (rc == -ERESTARTSYS) |
| return rc; |
| if (channel->state != CH_STATE_STOPPED) |
| return -ETIME; |
| channel->state = CH_STATE_DOWN; |
| return 0; |
| } |
| |
| static int |
| qeth_halt_channel(struct qeth_channel *channel) |
| { |
| unsigned long flags; |
| struct qeth_card *card; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"haltch"); |
| card = CARD_FROM_CDEV(channel->ccwdev); |
| spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); |
| spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| |
| if (rc) |
| return rc; |
| rc = wait_event_interruptible_timeout(card->wait_q, |
| channel->state==CH_STATE_HALTED, QETH_TIMEOUT); |
| if (rc == -ERESTARTSYS) |
| return rc; |
| if (channel->state != CH_STATE_HALTED) |
| return -ETIME; |
| return 0; |
| } |
| |
| static int |
| qeth_halt_channels(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"haltchs"); |
| if ((rc = qeth_halt_channel(&card->read))) |
| return rc; |
| if ((rc = qeth_halt_channel(&card->write))) |
| return rc; |
| return qeth_halt_channel(&card->data); |
| } |
| static int |
| qeth_clear_channels(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"clearchs"); |
| if ((rc = qeth_clear_channel(&card->read))) |
| return rc; |
| if ((rc = qeth_clear_channel(&card->write))) |
| return rc; |
| return qeth_clear_channel(&card->data); |
| } |
| |
| static int |
| qeth_clear_halt_card(struct qeth_card *card, int halt) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"clhacrd"); |
| QETH_DBF_HEX(trace, 3, &card, sizeof(void *)); |
| |
| if (halt) |
| rc = qeth_halt_channels(card); |
| if (rc) |
| return rc; |
| return qeth_clear_channels(card); |
| } |
| |
| static int |
| qeth_qdio_clear_card(struct qeth_card *card, int use_halt) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"qdioclr"); |
| if (card->qdio.state == QETH_QDIO_ESTABLISHED){ |
| if ((rc = qdio_cleanup(CARD_DDEV(card), |
| (card->info.type == QETH_CARD_TYPE_IQD) ? |
| QDIO_FLAG_CLEANUP_USING_HALT : |
| QDIO_FLAG_CLEANUP_USING_CLEAR))) |
| QETH_DBF_TEXT_(trace, 3, "1err%d", rc); |
| card->qdio.state = QETH_QDIO_ALLOCATED; |
| } |
| if ((rc = qeth_clear_halt_card(card, use_halt))) |
| QETH_DBF_TEXT_(trace, 3, "2err%d", rc); |
| card->state = CARD_STATE_DOWN; |
| return rc; |
| } |
| |
| static int |
| qeth_dm_act(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(setup,2,"dmact"); |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data, DM_ACT, DM_ACT_SIZE); |
| |
| memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), |
| &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), |
| &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); |
| return rc; |
| } |
| |
| static int |
| qeth_mpc_initialize(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(setup,2,"mpcinit"); |
| |
| if ((rc = qeth_issue_next_read(card))){ |
| QETH_DBF_TEXT_(setup, 2, "1err%d", rc); |
| return rc; |
| } |
| if ((rc = qeth_cm_enable(card))){ |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| return rc; |
| } |
| if ((rc = qeth_cm_setup(card))){ |
| QETH_DBF_TEXT_(setup, 2, "3err%d", rc); |
| return rc; |
| } |
| if ((rc = qeth_ulp_enable(card))){ |
| QETH_DBF_TEXT_(setup, 2, "4err%d", rc); |
| return rc; |
| } |
| if ((rc = qeth_ulp_setup(card))){ |
| QETH_DBF_TEXT_(setup, 2, "5err%d", rc); |
| return rc; |
| } |
| if ((rc = qeth_alloc_qdio_buffers(card))){ |
| QETH_DBF_TEXT_(setup, 2, "5err%d", rc); |
| return rc; |
| } |
| if ((rc = qeth_qdio_establish(card))){ |
| QETH_DBF_TEXT_(setup, 2, "6err%d", rc); |
| qeth_free_qdio_buffers(card); |
| goto out_qdio; |
| } |
| if ((rc = qeth_qdio_activate(card))){ |
| QETH_DBF_TEXT_(setup, 2, "7err%d", rc); |
| goto out_qdio; |
| } |
| if ((rc = qeth_dm_act(card))){ |
| QETH_DBF_TEXT_(setup, 2, "8err%d", rc); |
| goto out_qdio; |
| } |
| |
| return 0; |
| out_qdio: |
| qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE); |
| return rc; |
| } |
| |
| static struct net_device * |
| qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype) |
| { |
| struct net_device *dev = NULL; |
| |
| switch (type) { |
| case QETH_CARD_TYPE_OSAE: |
| switch (linktype) { |
| case QETH_LINK_TYPE_LANE_TR: |
| case QETH_LINK_TYPE_HSTR: |
| #ifdef CONFIG_TR |
| dev = alloc_trdev(0); |
| #endif /* CONFIG_TR */ |
| break; |
| default: |
| dev = alloc_etherdev(0); |
| } |
| break; |
| case QETH_CARD_TYPE_IQD: |
| dev = alloc_netdev(0, "hsi%d", ether_setup); |
| break; |
| default: |
| dev = alloc_etherdev(0); |
| } |
| return dev; |
| } |
| |
| /*hard_header fake function; used in case fake_ll is set */ |
| static int |
| qeth_fake_header(struct sk_buff *skb, struct net_device *dev, |
| unsigned short type, void *daddr, void *saddr, |
| unsigned len) |
| { |
| 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 inline int |
| qeth_send_packet(struct qeth_card *, struct sk_buff *); |
| |
| static int |
| qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| int rc; |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace, 6, "hrdstxmi"); |
| card = (struct qeth_card *)dev->priv; |
| if (skb==NULL) { |
| card->stats.tx_dropped++; |
| card->stats.tx_errors++; |
| /* return OK; otherwise ksoftirqd goes to 100% */ |
| return NETDEV_TX_OK; |
| } |
| if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
| card->stats.tx_dropped++; |
| card->stats.tx_errors++; |
| card->stats.tx_carrier_errors++; |
| dev_kfree_skb_any(skb); |
| /* return OK; otherwise ksoftirqd goes to 100% */ |
| return NETDEV_TX_OK; |
| } |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.outbound_cnt++; |
| card->perf_stats.outbound_start_time = qeth_get_micros(); |
| #endif |
| netif_stop_queue(dev); |
| if ((rc = qeth_send_packet(card, skb))) { |
| if (rc == -EBUSY) { |
| return NETDEV_TX_BUSY; |
| } else { |
| card->stats.tx_errors++; |
| card->stats.tx_dropped++; |
| dev_kfree_skb_any(skb); |
| /*set to OK; otherwise ksoftirqd goes to 100% */ |
| rc = NETDEV_TX_OK; |
| } |
| } |
| netif_wake_queue(dev); |
| #ifdef CONFIG_QETH_PERF_STATS |
| card->perf_stats.outbound_time += qeth_get_micros() - |
| card->perf_stats.outbound_start_time; |
| #endif |
| return rc; |
| } |
| |
| static int |
| qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card) |
| { |
| int rc = 0; |
| #ifdef CONFIG_QETH_VLAN |
| struct vlan_group *vg; |
| int i; |
| |
| if (!(vg = card->vlangrp)) |
| return rc; |
| |
| for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){ |
| if (vg->vlan_devices[i] == dev){ |
| rc = QETH_VLAN_CARD; |
| break; |
| } |
| } |
| #endif |
| return rc; |
| } |
| |
| static int |
| qeth_verify_dev(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| unsigned long flags; |
| int rc = 0; |
| |
| read_lock_irqsave(&qeth_card_list.rwlock, flags); |
| list_for_each_entry(card, &qeth_card_list.list, list){ |
| if (card->dev == dev){ |
| rc = QETH_REAL_CARD; |
| break; |
| } |
| rc = qeth_verify_vlan_dev(dev, card); |
| if (rc) |
| break; |
| } |
| read_unlock_irqrestore(&qeth_card_list.rwlock, flags); |
| |
| return rc; |
| } |
| |
| static struct qeth_card * |
| qeth_get_card_from_dev(struct net_device *dev) |
| { |
| struct qeth_card *card = NULL; |
| int rc; |
| |
| rc = qeth_verify_dev(dev); |
| if (rc == QETH_REAL_CARD) |
| card = (struct qeth_card *)dev->priv; |
| else if (rc == QETH_VLAN_CARD) |
| card = (struct qeth_card *) |
| VLAN_DEV_INFO(dev)->real_dev->priv; |
| |
| QETH_DBF_TEXT_(trace, 4, "%d", rc); |
| return card ; |
| } |
| |
| static void |
| qeth_tx_timeout(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| |
| card = (struct qeth_card *) dev->priv; |
| card->stats.tx_errors++; |
| qeth_schedule_recovery(card); |
| } |
| |
| static int |
| qeth_open(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace, 4, "qethopen"); |
| |
| card = (struct qeth_card *) dev->priv; |
| |
| if (card->state != CARD_STATE_SOFTSETUP) |
| return -ENODEV; |
| |
| if ( (card->options.layer2) && |
| (!card->info.layer2_mac_registered)) { |
| QETH_DBF_TEXT(trace,4,"nomacadr"); |
| return -EPERM; |
| } |
| card->dev->flags |= IFF_UP; |
| netif_start_queue(dev); |
| card->data.state = CH_STATE_UP; |
| card->state = CARD_STATE_UP; |
| |
| if (!card->lan_online){ |
| if (netif_carrier_ok(dev)) |
| netif_carrier_off(dev); |
| } |
| return 0; |
| } |
| |
| static int |
| qeth_stop(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace, 4, "qethstop"); |
| |
| card = (struct qeth_card *) dev->priv; |
| |
| netif_stop_queue(dev); |
| card->dev->flags &= ~IFF_UP; |
| if (card->state == CARD_STATE_UP) |
| card->state = CARD_STATE_SOFTSETUP; |
| return 0; |
| } |
| |
| static inline int |
| qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb) |
| { |
| int cast_type = RTN_UNSPEC; |
| |
| if (skb->dst && skb->dst->neighbour){ |
| cast_type = skb->dst->neighbour->type; |
| if ((cast_type == RTN_BROADCAST) || |
| (cast_type == RTN_MULTICAST) || |
| (cast_type == RTN_ANYCAST)) |
| return cast_type; |
| else |
| return RTN_UNSPEC; |
| } |
| /* try something else */ |
| if (skb->protocol == ETH_P_IPV6) |
| return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0; |
| else if (skb->protocol == ETH_P_IP) |
| return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0; |
| /* ... */ |
| if (!memcmp(skb->data, skb->dev->broadcast, 6)) |
| return RTN_BROADCAST; |
| else { |
| u16 hdr_mac; |
| |
| hdr_mac = *((u16 *)skb->data); |
| /* tr multicast? */ |
| switch (card->info.link_type) { |
| case QETH_LINK_TYPE_HSTR: |
| case QETH_LINK_TYPE_LANE_TR: |
| if ((hdr_mac == QETH_TR_MAC_NC) || |
| (hdr_mac == QETH_TR_MAC_C)) |
| return RTN_MULTICAST; |
| /* eth or so multicast? */ |
| default: |
| if ((hdr_mac == QETH_ETH_MAC_V4) || |
| (hdr_mac == QETH_ETH_MAC_V6)) |
| return RTN_MULTICAST; |
| } |
| } |
| return cast_type; |
| } |
| |
| static inline int |
| qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
| int ipv, int cast_type) |
| { |
| if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE)) |
| return card->qdio.default_out_queue; |
| switch (card->qdio.no_out_queues) { |
| case 4: |
| if (cast_type && card->info.is_multicast_different) |
| return card->info.is_multicast_different & |
| (card->qdio.no_out_queues - 1); |
| if (card->qdio.do_prio_queueing && (ipv == 4)) { |
| if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){ |
| if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT) |
| return 3; |
| if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY) |
| return 2; |
| if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT) |
| return 1; |
| if (skb->nh.iph->tos & IP_TOS_LOWDELAY) |
| return 0; |
| } |
| if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC) |
| return 3 - (skb->nh.iph->tos >> 6); |
| } else if (card->qdio.do_prio_queueing && (ipv == 6)) { |
| /* TODO: IPv6!!! */ |
| } |
| return card->qdio.default_out_queue; |
| case 1: /* fallthrough for single-out-queue 1920-device */ |
| default: |
| return card->qdio.default_out_queue; |
| } |
| } |
| |
| static inline int |
| qeth_get_ip_version(struct sk_buff *skb) |
| { |
| switch (skb->protocol) { |
| case ETH_P_IPV6: |
| return 6; |
| case ETH_P_IP: |
| return 4; |
| default: |
| return 0; |
| } |
| } |
| |
| static inline int |
| qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb, |
| struct qeth_hdr **hdr, int ipv) |
| { |
| #ifdef CONFIG_QETH_VLAN |
| u16 *tag; |
| #endif |
| |
| QETH_DBF_TEXT(trace, 6, "prepskb"); |
| |
| #ifdef CONFIG_QETH_VLAN |
| if (card->vlangrp && vlan_tx_tag_present(*skb) && |
| ((ipv == 6) || card->options.layer2) ) { |
| /* |
| * Move the mac addresses (6 bytes src, 6 bytes dest) |
| * to the beginning of the new header. We are using three |
| * memcpys instead of one memmove to save cycles. |
| */ |
| skb_push(*skb, VLAN_HLEN); |
| memcpy((*skb)->data, (*skb)->data + 4, 4); |
| memcpy((*skb)->data + 4, (*skb)->data + 8, 4); |
| memcpy((*skb)->data + 8, (*skb)->data + 12, 4); |
| tag = (u16 *)((*skb)->data + 12); |
| /* |
| * first two bytes = ETH_P_8021Q (0x8100) |
| * second two bytes = VLANID |
| */ |
| *tag = __constant_htons(ETH_P_8021Q); |
| *(tag + 1) = htons(vlan_tx_tag_get(*skb)); |
| } |
| #endif |
| *hdr = (struct qeth_hdr *) |
| qeth_push_skb(card, skb, sizeof(struct qeth_hdr)); |
| if (hdr == NULL) |
| return -EINVAL; |
| return 0; |
| } |
| |
| static inline u8 |
| qeth_get_qeth_hdr_flags4(int cast_type) |
| { |
| if (cast_type == RTN_MULTICAST) |
| return QETH_CAST_MULTICAST; |
| if (cast_type == RTN_BROADCAST) |
| return QETH_CAST_BROADCAST; |
| return QETH_CAST_UNICAST; |
| } |
| |
| static inline u8 |
| qeth_get_qeth_hdr_flags6(int cast_type) |
| { |
| u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6; |
| if (cast_type == RTN_MULTICAST) |
| return ct | QETH_CAST_MULTICAST; |
| if (cast_type == RTN_ANYCAST) |
| return ct | QETH_CAST_ANYCAST; |
| if (cast_type == RTN_BROADCAST) |
| return ct | QETH_CAST_BROADCAST; |
| return ct | QETH_CAST_UNICAST; |
| } |
| |
| static inline void |
| qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr, |
| struct sk_buff *skb) |
| { |
| __u16 hdr_mac; |
| |
| if (!memcmp(skb->data+QETH_HEADER_SIZE, |
| skb->dev->broadcast,6)) { /* broadcast? */ |
| *(__u32 *)hdr->hdr.l2.flags |= |
| QETH_LAYER2_FLAG_BROADCAST << 8; |
| return; |
| } |
| hdr_mac=*((__u16*)skb->data); |
| /* tr multicast? */ |
| switch (card->info.link_type) { |
| case QETH_LINK_TYPE_HSTR: |
| case QETH_LINK_TYPE_LANE_TR: |
| if ((hdr_mac == QETH_TR_MAC_NC) || |
| (hdr_mac == QETH_TR_MAC_C) ) |
| *(__u32 *)hdr->hdr.l2.flags |= |
| QETH_LAYER2_FLAG_MULTICAST << 8; |
| else |
| *(__u32 *)hdr->hdr.l2.flags |= |
| QETH_LAYER2_FLAG_UNICAST << 8; |
| break; |
| /* eth or so multicast? */ |
| default: |
| if ( (hdr_mac==QETH_ETH_MAC_V4) || |
| (hdr_mac==QETH_ETH_MAC_V6) ) |
| *(__u32 *)hdr->hdr.l2.flags |= |
| QETH_LAYER2_FLAG_MULTICAST << 8; |
| else |
| *(__u32 *)hdr->hdr.l2.flags |= |
| QETH_LAYER2_FLAG_UNICAST << 8; |
| } |
| } |
| |
| static inline void |
| qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, |
| struct sk_buff *skb, int cast_type) |
| { |
| memset(hdr, 0, sizeof(struct qeth_hdr)); |
| hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; |
| |
| /* set byte 0 to "0x02" and byte 3 to casting flags */ |
| if (cast_type==RTN_MULTICAST) |
| *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8; |
| else if (cast_type==RTN_BROADCAST) |
| *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8; |
| else |
| qeth_layer2_get_packet_type(card, hdr, skb); |
| |
| hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; |
| #ifdef CONFIG_QETH_VLAN |
| /* VSWITCH relies on the VLAN |
| * information to be present in |
| * the QDIO header */ |
| if ((card->vlangrp != NULL) && |
| vlan_tx_tag_present(skb)) { |
| *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8; |
| hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb); |
| } |
| #endif |
| } |
| |
| void |
| qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, |
| struct sk_buff *skb, int ipv, int cast_type) |
| { |
| QETH_DBF_TEXT(trace, 6, "fillhdr"); |
| |
| memset(hdr, 0, sizeof(struct qeth_hdr)); |
| if (card->options.layer2) { |
| qeth_layer2_fill_header(card, hdr, skb, cast_type); |
| return; |
| } |
| hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; |
| hdr->hdr.l3.ext_flags = 0; |
| #ifdef CONFIG_QETH_VLAN |
| /* |
| * before we're going to overwrite this location with next hop ip. |
| * v6 uses passthrough, v4 sets the tag in the QDIO header. |
| */ |
| if (card->vlangrp && vlan_tx_tag_present(skb)) { |
| hdr->hdr.l3.ext_flags = (ipv == 4) ? |
| QETH_HDR_EXT_VLAN_FRAME : |
| QETH_HDR_EXT_INCLUDE_VLAN_TAG; |
| hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb); |
| } |
| #endif /* CONFIG_QETH_VLAN */ |
| hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr); |
| if (ipv == 4) { /* IPv4 */ |
| hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type); |
| memset(hdr->hdr.l3.dest_addr, 0, 12); |
| if ((skb->dst) && (skb->dst->neighbour)) { |
| *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = |
| *((u32 *) skb->dst->neighbour->primary_key); |
| } else { |
| /* fill in destination address used in ip header */ |
| *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr; |
| } |
| } else if (ipv == 6) { /* IPv6 or passthru */ |
| hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type); |
| if ((skb->dst) && (skb->dst->neighbour)) { |
| memcpy(hdr->hdr.l3.dest_addr, |
| skb->dst->neighbour->primary_key, 16); |
| } else { |
| /* fill in destination address used in ip header */ |
| memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16); |
| } |
| } else { /* passthrough */ |
| if((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 inline 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 inline int |
| qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
| struct qeth_qdio_out_buffer *buf, |
| struct sk_buff *skb) |
| { |
| struct qdio_buffer *buffer; |
| 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"); |
| #ifdef CONFIG_QETH_PERF_STATS |
| queue->card->perf_stats.skbs_sent_pack++; |
| #endif |
| if (buf->next_element_to_fill >= |
| QETH_MAX_BUFFER_ELEMENTS(queue->card)) { |
| /* |
| * packed buffer if full -> set state PRIMED |
| * -> will be flushed |
| */ |
| atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| flush_cnt = 1; |
| } |
| } |
| return flush_cnt; |
| } |
| |
| static inline int |
| qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue, |
| struct sk_buff *skb, struct qeth_hdr *hdr, |
| int elements_needed, |
| struct qeth_eddp_context *ctx) |
| { |
| struct qeth_qdio_out_buffer *buffer; |
| int buffers_needed = 0; |
| int flush_cnt = 0; |
| int index; |
| |
| QETH_DBF_TEXT(trace, 6, "dosndpfa"); |
| |
| /* spin until we get the queue ... */ |
| while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED, |
| QETH_OUT_Q_LOCKED, |
| &queue->state)); |
| /* ... now we've got the queue */ |
| index = queue->next_buf_to_fill; |
| buffer = &queue->bufs[queue->next_buf_to_fill]; |
| /* |
| * check if buffer is empty to make sure that we do not 'overtake' |
| * ourselves and try to fill a buffer that is already primed |
| */ |
| if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { |
| card->stats.tx_dropped++; |
| atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| return -EBUSY; |
| } |
| if (ctx == NULL) |
| queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % |
| QDIO_MAX_BUFFERS_PER_Q; |
| else { |
| buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx); |
| if (buffers_needed < 0) { |
| card->stats.tx_dropped++; |
| atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| return -EBUSY; |
| } |
| queue->next_buf_to_fill = |
| (queue->next_buf_to_fill + buffers_needed) % |
| QDIO_MAX_BUFFERS_PER_Q; |
| } |
| atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| if (ctx == NULL) { |
| qeth_fill_buffer(queue, buffer, skb); |
| qeth_flush_buffers(queue, 0, index, 1); |
| } else { |
| flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index); |
| WARN_ON(buffers_needed != flush_cnt); |
| qeth_flush_buffers(queue, 0, index, flush_cnt); |
| } |
| return 0; |
| } |
| |
| static inline int |
| qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, |
| struct sk_buff *skb, struct qeth_hdr *hdr, |
| int elements_needed, struct qeth_eddp_context *ctx) |
| { |
| struct qeth_qdio_out_buffer *buffer; |
| int start_index; |
| int flush_count = 0; |
| int do_pack = 0; |
| int tmp; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace, 6, "dosndpkt"); |
| |
| /* spin until we get the queue ... */ |
| while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED, |
| QETH_OUT_Q_LOCKED, |
| &queue->state)); |
| start_index = queue->next_buf_to_fill; |
| buffer = &queue->bufs[queue->next_buf_to_fill]; |
| /* |
| * check if buffer is empty to make sure that we do not 'overtake' |
| * ourselves and try to fill a buffer that is already primed |
| */ |
| if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){ |
| card->stats.tx_dropped++; |
| atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| return -EBUSY; |
| } |
| /* check if we need to switch packing state of this queue */ |
| qeth_switch_to_packing_if_needed(queue); |
| if (queue->do_pack){ |
| do_pack = 1; |
| if (ctx == NULL) { |
| /* does packet fit in current buffer? */ |
| if((QETH_MAX_BUFFER_ELEMENTS(card) - |
| buffer->next_element_to_fill) < elements_needed){ |
| /* ... no -> set state PRIMED */ |
| atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED); |
| flush_count++; |
| queue->next_buf_to_fill = |
| (queue->next_buf_to_fill + 1) % |
| QDIO_MAX_BUFFERS_PER_Q; |
| buffer = &queue->bufs[queue->next_buf_to_fill]; |
| /* we did a step forward, so check buffer state |
| * again */ |
| if (atomic_read(&buffer->state) != |
| QETH_QDIO_BUF_EMPTY){ |
| card->stats.tx_dropped++; |
| qeth_flush_buffers(queue, 0, start_index, flush_count); |
| atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| return -EBUSY; |
| } |
| } |
| } else { |
| /* check if we have enough elements (including following |
| * free buffers) to handle eddp context */ |
| if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){ |
| printk("eddp tx_dropped 1\n"); |
| card->stats.tx_dropped++; |
| rc = -EBUSY; |
| goto out; |
| } |
| } |
| } |
| if (ctx == NULL) |
| tmp = qeth_fill_buffer(queue, buffer, skb); |
| else { |
| tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill); |
| if (tmp < 0) { |
| printk("eddp tx_dropped 2\n"); |
| card->stats.tx_dropped++; |
| rc = - EBUSY; |
| goto out; |
| } |
| } |
| queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
| QDIO_MAX_BUFFERS_PER_Q; |
| flush_count += tmp; |
| out: |
| if (flush_count) |
| qeth_flush_buffers(queue, 0, start_index, flush_count); |
| /* |
| * queue->state will go from LOCKED -> UNLOCKED or from |
| * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us |
| * (switch packing state or flush buffer to get another pci flag out). |
| * In that case we will enter this loop |
| */ |
| while (atomic_dec_return(&queue->state)){ |
| flush_count = 0; |
| start_index = queue->next_buf_to_fill; |
| /* check if we can go back to non-packing state */ |
| flush_count += qeth_switch_to_nonpacking_if_needed(queue); |
| /* |
| * check if we need to flush a packing buffer to get a pci |
| * flag out on the queue |
| */ |
| if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) |
| flush_count += qeth_flush_buffers_on_no_pci(queue); |
| if (flush_count) |
| qeth_flush_buffers(queue, 0, start_index, flush_count); |
| } |
| /* at this point the queue is UNLOCKED again */ |
| #ifdef CONFIG_QETH_PERF_STATS |
| if (do_pack) |
| queue->card->perf_stats.bufs_sent_pack += flush_count; |
| #endif /* CONFIG_QETH_PERF_STATS */ |
| |
| return rc; |
| } |
| |
| static inline int |
| qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb) |
| { |
| 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 > QETH_MAX_BUFFER_ELEMENTS(card)){ |
| PRINT_ERR("qeth_do_send_packet: invalid size of " |
| "IP packet. Discarded."); |
| return 0; |
| } |
| return elements_needed; |
| } |
| |
| static inline int |
| qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) |
| { |
| int ipv = 0; |
| int cast_type; |
| struct qeth_qdio_out_q *queue; |
| struct qeth_hdr *hdr; |
| int elements_needed = 0; |
| enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; |
| struct qeth_eddp_context *ctx = NULL; |
| int rc; |
| |
| QETH_DBF_TEXT(trace, 6, "sendpkt"); |
| |
| if (!card->options.layer2) { |
| ipv = qeth_get_ip_version(skb); |
| if ((card->dev->hard_header == qeth_fake_header) && ipv) { |
| if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) { |
| card->stats.tx_dropped++; |
| dev_kfree_skb_irq(skb); |
| return 0; |
| } |
| if(card->dev->type == ARPHRD_IEEE802_TR){ |
| skb_pull(skb, QETH_FAKE_LL_LEN_TR); |
| } else { |
| skb_pull(skb, QETH_FAKE_LL_LEN_ETH); |
| } |
| } |
| } |
| cast_type = qeth_get_cast_type(card, skb); |
| if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){ |
| card->stats.tx_dropped++; |
| card->stats.tx_errors++; |
| dev_kfree_skb_any(skb); |
| return NETDEV_TX_OK; |
| } |
| queue = card->qdio.out_qs |
| [qeth_get_priority_queue(card, skb, ipv, cast_type)]; |
| |
| if (skb_shinfo(skb)->tso_size) |
| large_send = card->options.large_send; |
| |
| /*are we able to do TSO ? If so ,prepare and send it from here */ |
| if ((large_send == QETH_LARGE_SEND_TSO) && |
| (cast_type == RTN_UNSPEC)) { |
| rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type); |
| if (rc) { |
| card->stats.tx_dropped++; |
| card->stats.tx_errors++; |
| dev_kfree_skb_any(skb); |
| return NETDEV_TX_OK; |
| } |
| elements_needed++; |
| } else { |
| if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) { |
| QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc); |
| return rc; |
| } |
| qeth_fill_header(card, hdr, skb, ipv, cast_type); |
| } |
| |
| if (large_send == QETH_LARGE_SEND_EDDP) { |
| ctx = qeth_eddp_create_context(card, skb, hdr); |
| if (ctx == NULL) { |
| PRINT_WARN("could not create eddp context\n"); |
| return -EINVAL; |
| } |
| } else { |
| elements_needed += qeth_get_elements_no(card,(void*) hdr, skb); |
| if (!elements_needed) |
| return -EINVAL; |
| } |
| |
| if (card->info.type != QETH_CARD_TYPE_IQD) |
| rc = qeth_do_send_packet(card, queue, skb, hdr, |
| elements_needed, ctx); |
| else |
| rc = qeth_do_send_packet_fast(card, queue, skb, hdr, |
| elements_needed, ctx); |
| if (!rc){ |
| card->stats.tx_packets++; |
| card->stats.tx_bytes += skb->len; |
| #ifdef CONFIG_QETH_PERF_STATS |
| if (skb_shinfo(skb)->tso_size && |
| !(large_send == QETH_LARGE_SEND_NO)) { |
| card->perf_stats.large_send_bytes += skb->len; |
| card->perf_stats.large_send_cnt++; |
| } |
| if (skb_shinfo(skb)->nr_frags > 0){ |
| card->perf_stats.sg_skbs_sent++; |
| /* nr_frags + skb->data */ |
| card->perf_stats.sg_frags_sent += |
| skb_shinfo(skb)->nr_frags + 1; |
| } |
| #endif /* CONFIG_QETH_PERF_STATS */ |
| } |
| if (ctx != NULL) { |
| /* drop creator's reference */ |
| qeth_eddp_put_context(ctx); |
| /* free skb; it's not referenced by a buffer */ |
| if (rc == 0) |
| dev_kfree_skb_any(skb); |
| |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) |
| { |
| struct qeth_card *card = (struct qeth_card *) dev->priv; |
| int rc = 0; |
| |
| switch(regnum){ |
| case MII_BMCR: /* Basic mode control register */ |
| rc = BMCR_FULLDPLX; |
| if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&& |
| (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) |
| rc |= BMCR_SPEED100; |
| break; |
| case MII_BMSR: /* Basic mode status register */ |
| rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | |
| BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | |
| BMSR_100BASE4; |
| break; |
| case MII_PHYSID1: /* PHYS ID 1 */ |
| rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | |
| dev->dev_addr[2]; |
| rc = (rc >> 5) & 0xFFFF; |
| break; |
| case MII_PHYSID2: /* PHYS ID 2 */ |
| rc = (dev->dev_addr[2] << 10) & 0xFFFF; |
| break; |
| case MII_ADVERTISE: /* Advertisement control reg */ |
| rc = ADVERTISE_ALL; |
| break; |
| case MII_LPA: /* Link partner ability reg */ |
| rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | |
| LPA_100BASE4 | LPA_LPACK; |
| break; |
| case MII_EXPANSION: /* Expansion register */ |
| break; |
| case MII_DCOUNTER: /* disconnect counter */ |
| break; |
| case MII_FCSCOUNTER: /* false carrier counter */ |
| break; |
| case MII_NWAYTEST: /* N-way auto-neg test register */ |
| break; |
| case MII_RERRCOUNTER: /* rx error counter */ |
| rc = card->stats.rx_errors; |
| break; |
| case MII_SREVISION: /* silicon revision */ |
| break; |
| case MII_RESV1: /* reserved 1 */ |
| break; |
| case MII_LBRERROR: /* loopback, rx, bypass error */ |
| break; |
| case MII_PHYADDR: /* physical address */ |
| break; |
| case MII_RESV2: /* reserved 2 */ |
| break; |
| case MII_TPISTATUS: /* TPI status for 10mbps */ |
| break; |
| case MII_NCONFIG: /* network interface config */ |
| break; |
| default: |
| rc = 0; |
| break; |
| } |
| return rc; |
| } |
| |
| static void |
| qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value) |
| { |
| switch(regnum){ |
| case MII_BMCR: /* Basic mode control register */ |
| case MII_BMSR: /* Basic mode status register */ |
| case MII_PHYSID1: /* PHYS ID 1 */ |
| case MII_PHYSID2: /* PHYS ID 2 */ |
| case MII_ADVERTISE: /* Advertisement control reg */ |
| case MII_LPA: /* Link partner ability reg */ |
| case MII_EXPANSION: /* Expansion register */ |
| case MII_DCOUNTER: /* disconnect counter */ |
| case MII_FCSCOUNTER: /* false carrier counter */ |
| case MII_NWAYTEST: /* N-way auto-neg test register */ |
| case MII_RERRCOUNTER: /* rx error counter */ |
| case MII_SREVISION: /* silicon revision */ |
| case MII_RESV1: /* reserved 1 */ |
| case MII_LBRERROR: /* loopback, rx, bypass error */ |
| case MII_PHYADDR: /* physical address */ |
| case MII_RESV2: /* reserved 2 */ |
| case MII_TPISTATUS: /* TPI status for 10mbps */ |
| case MII_NCONFIG: /* network interface config */ |
| default: |
| break; |
| } |
| } |
| |
| static inline const char * |
| qeth_arp_get_error_cause(int *rc) |
| { |
| switch (*rc) { |
| case QETH_IPA_ARP_RC_FAILED: |
| *rc = -EIO; |
| return "operation failed"; |
| case QETH_IPA_ARP_RC_NOTSUPP: |
| *rc = -EOPNOTSUPP; |
| return "operation not supported"; |
| case QETH_IPA_ARP_RC_OUT_OF_RANGE: |
| *rc = -EINVAL; |
| return "argument out of range"; |
| case QETH_IPA_ARP_RC_Q_NOTSUPP: |
| *rc = -EOPNOTSUPP; |
| return "query operation not supported"; |
| case QETH_IPA_ARP_RC_Q_NO_DATA: |
| *rc = -ENOENT; |
| return "no query data available"; |
| default: |
| return "unknown error"; |
| } |
| } |
| |
| static int |
| qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs, |
| __u16, long); |
| |
| static int |
| qeth_arp_set_no_entries(struct qeth_card *card, int no_entries) |
| { |
| int tmp; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"arpstnoe"); |
| |
| /* TODO: really not supported by GuestLAN? */ |
| if (card->info.guestlan) |
| return -EOPNOTSUPP; |
| if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { |
| PRINT_WARN("ARP processing not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, |
| IPA_CMD_ASS_ARP_SET_NO_ENTRIES, |
| no_entries); |
| if (rc) { |
| tmp = rc; |
| PRINT_WARN("Could not set number of ARP entries on %s: " |
| "%s (0x%x/%d)\n", |
| QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc), |
| tmp, tmp); |
| } |
| return rc; |
| } |
| |
| static inline void |
| qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo, |
| struct qeth_arp_query_data *qdata, |
| int entry_size, int uentry_size) |
| { |
| char *entry_ptr; |
| char *uentry_ptr; |
| int i; |
| |
| entry_ptr = (char *)&qdata->data; |
| uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset); |
| for (i = 0; i < qdata->no_entries; ++i){ |
| /* strip off 32 bytes "media specific information" */ |
| memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32); |
| entry_ptr += entry_size; |
| uentry_ptr += uentry_size; |
| } |
| } |
| |
| static int |
| qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_arp_query_data *qdata; |
| struct qeth_arp_query_info *qinfo; |
| int entry_size; |
| int uentry_size; |
| int i; |
| |
| QETH_DBF_TEXT(trace,4,"arpquecb"); |
| |
| qinfo = (struct qeth_arp_query_info *) reply->param; |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code) { |
| QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code); |
| return 0; |
| } |
| if (cmd->data.setassparms.hdr.return_code) { |
| cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; |
| QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code); |
| return 0; |
| } |
| qdata = &cmd->data.setassparms.data.query_arp; |
| switch(qdata->reply_bits){ |
| case 5: |
| uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5); |
| if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) |
| uentry_size = sizeof(struct qeth_arp_qi_entry5_short); |
| break; |
| case 7: |
| /* fall through to default */ |
| default: |
| /* tr is the same as eth -> entry7 */ |
| uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7); |
| if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) |
| uentry_size = sizeof(struct qeth_arp_qi_entry7_short); |
| break; |
| } |
| /* check if there is enough room in userspace */ |
| if ((qinfo->udata_len - qinfo->udata_offset) < |
| qdata->no_entries * uentry_size){ |
| QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM); |
| cmd->hdr.return_code = -ENOMEM; |
| PRINT_WARN("query ARP user space buffer is too small for " |
| "the returned number of ARP entries. " |
| "Aborting query!\n"); |
| goto out_error; |
| } |
| QETH_DBF_TEXT_(trace, 4, "anore%i", |
| cmd->data.setassparms.hdr.number_of_replies); |
| QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no); |
| QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries); |
| |
| if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) { |
| /* strip off "media specific information" */ |
| qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size, |
| uentry_size); |
| } else |
| /*copy entries to user buffer*/ |
| memcpy(qinfo->udata + qinfo->udata_offset, |
| (char *)&qdata->data, qdata->no_entries*uentry_size); |
| |
| qinfo->no_entries += qdata->no_entries; |
| qinfo->udata_offset += (qdata->no_entries*uentry_size); |
| /* check if all replies received ... */ |
| if (cmd->data.setassparms.hdr.seq_no < |
| cmd->data.setassparms.hdr.number_of_replies) |
| return 1; |
| memcpy(qinfo->udata, &qinfo->no_entries, 4); |
| /* keep STRIP_ENTRIES flag so the user program can distinguish |
| * stripped entries from normal ones */ |
| if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) |
| qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES; |
| memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2); |
| return 0; |
| out_error: |
| i = 0; |
| memcpy(qinfo->udata, &i, 4); |
| return 0; |
| } |
| |
| static int |
| qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| int len, int (*reply_cb)(struct qeth_card *, |
| struct qeth_reply *, |
| unsigned long), |
| void *reply_param) |
| { |
| QETH_DBF_TEXT(trace,4,"sendarp"); |
| |
| memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, |
| reply_cb, reply_param); |
| } |
| |
| static int |
| qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| int len, int (*reply_cb)(struct qeth_card *, |
| struct qeth_reply *, |
| unsigned long), |
| void *reply_param) |
| { |
| u16 s1, s2; |
| |
| QETH_DBF_TEXT(trace,4,"sendsnmp"); |
| |
| memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| /* adjust PDU length fields in IPA_PDU_HEADER */ |
| s1 = (u32) IPA_PDU_HEADER_SIZE + len; |
| s2 = (u32) len; |
| memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); |
| memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); |
| memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); |
| memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); |
| return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, |
| reply_cb, reply_param); |
| } |
| |
| static struct qeth_cmd_buffer * |
| qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs, |
| __u16, __u16, enum qeth_prot_versions); |
| static int |
| qeth_arp_query(struct qeth_card *card, char *udata) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_arp_query_info qinfo = {0, }; |
| int tmp; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"arpquery"); |
| |
| /* |
| * currently GuestLAN does only deliver all zeros on query arp, |
| * even though arp processing is supported (according to IPA supp. |
| * funcs flags); since all zeros is no valueable information, |
| * we say EOPNOTSUPP for all ARP functions |
| */ |
| /*if (card->info.guestlan) |
| return -EOPNOTSUPP; */ |
| if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/ |
| IPA_ARP_PROCESSING)) { |
| PRINT_WARN("ARP processing not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| /* get size of userspace buffer and mask_bits -> 6 bytes */ |
| if (copy_from_user(&qinfo, udata, 6)) |
| return -EFAULT; |
| if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))) |
| return -ENOMEM; |
| memset(qinfo.udata, 0, qinfo.udata_len); |
| qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET; |
| iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, |
| IPA_CMD_ASS_ARP_QUERY_INFO, |
| sizeof(int),QETH_PROT_IPV4); |
| |
| rc = qeth_send_ipa_arp_cmd(card, iob, |
| QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN, |
| qeth_arp_query_cb, (void *)&qinfo); |
| if (rc) { |
| tmp = rc; |
| PRINT_WARN("Error while querying ARP cache on %s: %s " |
| "(0x%x/%d)\n", |
| QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc), |
| tmp, tmp); |
| copy_to_user(udata, qinfo.udata, 4); |
| } else { |
| copy_to_user(udata, qinfo.udata, qinfo.udata_len); |
| } |
| kfree(qinfo.udata); |
| return rc; |
| } |
| |
| /** |
| * SNMP command callback |
| */ |
| static int |
| qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long sdata) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_arp_query_info *qinfo; |
| struct qeth_snmp_cmd *snmp; |
| unsigned char *data; |
| __u16 data_len; |
| |
| QETH_DBF_TEXT(trace,3,"snpcmdcb"); |
| |
| cmd = (struct qeth_ipa_cmd *) sdata; |
| data = (unsigned char *)((char *)cmd - reply->offset); |
| qinfo = (struct qeth_arp_query_info *) reply->param; |
| snmp = &cmd->data.setadapterparms.data.snmp; |
| |
| if (cmd->hdr.return_code) { |
| QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code); |
| return 0; |
| } |
| if (cmd->data.setadapterparms.hdr.return_code) { |
| cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code; |
| QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code); |
| return 0; |
| } |
| data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data)); |
| if (cmd->data.setadapterparms.hdr.seq_no == 1) |
| data_len -= (__u16)((char *)&snmp->data - (char *)cmd); |
| else |
| data_len -= (__u16)((char*)&snmp->request - (char *)cmd); |
| |
| /* check if there is enough room in userspace */ |
| if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { |
| QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM); |
| cmd->hdr.return_code = -ENOMEM; |
| return 0; |
| } |
| QETH_DBF_TEXT_(trace, 4, "snore%i", |
| cmd->data.setadapterparms.hdr.used_total); |
| QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no); |
| /*copy entries to user buffer*/ |
| if (cmd->data.setadapterparms.hdr.seq_no == 1) { |
| memcpy(qinfo->udata + qinfo->udata_offset, |
| (char *)snmp, |
| data_len + offsetof(struct qeth_snmp_cmd,data)); |
| qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); |
| } else { |
| memcpy(qinfo->udata + qinfo->udata_offset, |
| (char *)&snmp->request, data_len); |
| } |
| qinfo->udata_offset += data_len; |
| /* check if all replies received ... */ |
| QETH_DBF_TEXT_(trace, 4, "srtot%i", |
| cmd->data.setadapterparms.hdr.used_total); |
| QETH_DBF_TEXT_(trace, 4, "srseq%i", |
| cmd->data.setadapterparms.hdr.seq_no); |
| if (cmd->data.setadapterparms.hdr.seq_no < |
| cmd->data.setadapterparms.hdr.used_total) |
| return 1; |
| return 0; |
| } |
| |
| static struct qeth_cmd_buffer * |
| qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds, |
| enum qeth_prot_versions ); |
| |
| static struct qeth_cmd_buffer * |
| qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS, |
| QETH_PROT_IPV4); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setadapterparms.hdr.cmdlength = cmdlen; |
| cmd->data.setadapterparms.hdr.command_code = command; |
| cmd->data.setadapterparms.hdr.used_total = 1; |
| cmd->data.setadapterparms.hdr.seq_no = 1; |
| |
| return iob; |
| } |
| |
| /** |
| * function to send SNMP commands to OSA-E card |
| */ |
| static int |
| qeth_snmp_command(struct qeth_card *card, char *udata) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_snmp_ureq *ureq; |
| int req_len; |
| struct qeth_arp_query_info qinfo = {0, }; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"snmpcmd"); |
| |
| if (card->info.guestlan) |
| return -EOPNOTSUPP; |
| |
| if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) && |
| (!card->options.layer2) ) { |
| PRINT_WARN("SNMP Query MIBS not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| /* skip 4 bytes (data_len struct member) to get req_len */ |
| if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) |
| return -EFAULT; |
| ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL); |
| if (!ureq) { |
| QETH_DBF_TEXT(trace, 2, "snmpnome"); |
| return -ENOMEM; |
| } |
| if (copy_from_user(ureq, udata, |
| req_len+sizeof(struct qeth_snmp_ureq_hdr))){ |
| kfree(ureq); |
| return -EFAULT; |
| } |
| qinfo.udata_len = ureq->hdr.data_len; |
| if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){ |
| kfree(ureq); |
| return -ENOMEM; |
| } |
| memset(qinfo.udata, 0, qinfo.udata_len); |
| qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); |
| |
| iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, |
| QETH_SNMP_SETADP_CMDLENGTH + req_len); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); |
| rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, |
| qeth_snmp_command_cb, (void *)&qinfo); |
| if (rc) |
| PRINT_WARN("SNMP command failed on %s: (0x%x)\n", |
| QETH_CARD_IFNAME(card), rc); |
| else |
| copy_to_user(udata, qinfo.udata, qinfo.udata_len); |
| |
| kfree(ureq); |
| kfree(qinfo.udata); |
| return rc; |
| } |
| |
| static int |
| qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *, |
| unsigned long); |
| |
| static int |
| qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, |
| __u16, long, |
| int (*reply_cb) |
| (struct qeth_card *, struct qeth_reply *, unsigned long), |
| void *reply_param); |
| |
| static int |
| qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry) |
| { |
| struct qeth_cmd_buffer *iob; |
| char buf[16]; |
| int tmp; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"arpadent"); |
| |
| /* |
| * currently GuestLAN does only deliver all zeros on query arp, |
| * even though arp processing is supported (according to IPA supp. |
| * funcs flags); since all zeros is no valueable information, |
| * we say EOPNOTSUPP for all ARP functions |
| */ |
| if (card->info.guestlan) |
| return -EOPNOTSUPP; |
| if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { |
| PRINT_WARN("ARP processing not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| |
| iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, |
| IPA_CMD_ASS_ARP_ADD_ENTRY, |
| sizeof(struct qeth_arp_cache_entry), |
| QETH_PROT_IPV4); |
| rc = qeth_send_setassparms(card, iob, |
| sizeof(struct qeth_arp_cache_entry), |
| (unsigned long) entry, |
| qeth_default_setassparms_cb, NULL); |
| if (rc) { |
| tmp = rc; |
| qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf); |
| PRINT_WARN("Could not add ARP entry for address %s on %s: " |
| "%s (0x%x/%d)\n", |
| buf, QETH_CARD_IFNAME(card), |
| qeth_arp_get_error_cause(&rc), tmp, tmp); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry) |
| { |
| struct qeth_cmd_buffer *iob; |
| char buf[16] = {0, }; |
| int tmp; |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"arprment"); |
| |
| /* |
| * currently GuestLAN does only deliver all zeros on query arp, |
| * even though arp processing is supported (according to IPA supp. |
| * funcs flags); since all zeros is no valueable information, |
| * we say EOPNOTSUPP for all ARP functions |
| */ |
| if (card->info.guestlan) |
| return -EOPNOTSUPP; |
| if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { |
| PRINT_WARN("ARP processing not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| memcpy(buf, entry, 12); |
| iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, |
| IPA_CMD_ASS_ARP_REMOVE_ENTRY, |
| 12, |
| QETH_PROT_IPV4); |
| rc = qeth_send_setassparms(card, iob, |
| 12, (unsigned long)buf, |
| qeth_default_setassparms_cb, NULL); |
| if (rc) { |
| tmp = rc; |
| memset(buf, 0, 16); |
| qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf); |
| PRINT_WARN("Could not delete ARP entry for address %s on %s: " |
| "%s (0x%x/%d)\n", |
| buf, QETH_CARD_IFNAME(card), |
| qeth_arp_get_error_cause(&rc), tmp, tmp); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_arp_flush_cache(struct qeth_card *card) |
| { |
| int rc; |
| int tmp; |
| |
| QETH_DBF_TEXT(trace,3,"arpflush"); |
| |
| /* |
| * currently GuestLAN does only deliver all zeros on query arp, |
| * even though arp processing is supported (according to IPA supp. |
| * funcs flags); since all zeros is no valueable information, |
| * we say EOPNOTSUPP for all ARP functions |
| */ |
| if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD)) |
| return -EOPNOTSUPP; |
| if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { |
| PRINT_WARN("ARP processing not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, |
| IPA_CMD_ASS_ARP_FLUSH_CACHE, 0); |
| if (rc){ |
| tmp = rc; |
| PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n", |
| QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc), |
| tmp, tmp); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| struct qeth_arp_cache_entry arp_entry; |
| struct mii_ioctl_data *mii_data; |
| int rc = 0; |
| |
| if (!card) |
| return -ENODEV; |
| |
| if ((card->state != CARD_STATE_UP) && |
| (card->state != CARD_STATE_SOFTSETUP)) |
| return -ENODEV; |
| |
| switch (cmd){ |
| case SIOC_QETH_ARP_SET_NO_ENTRIES: |
| if ( !capable(CAP_NET_ADMIN) || |
| (card->options.layer2) ) { |
| rc = -EPERM; |
| break; |
| } |
| rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue); |
| break; |
| case SIOC_QETH_ARP_QUERY_INFO: |
| if ( !capable(CAP_NET_ADMIN) || |
| (card->options.layer2) ) { |
| rc = -EPERM; |
| break; |
| } |
| rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data); |
| break; |
| case SIOC_QETH_ARP_ADD_ENTRY: |
| if ( !capable(CAP_NET_ADMIN) || |
| (card->options.layer2) ) { |
| rc = -EPERM; |
| break; |
| } |
| if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, |
| sizeof(struct qeth_arp_cache_entry))) |
| rc = -EFAULT; |
| else |
| rc = qeth_arp_add_entry(card, &arp_entry); |
| break; |
| case SIOC_QETH_ARP_REMOVE_ENTRY: |
| if ( !capable(CAP_NET_ADMIN) || |
| (card->options.layer2) ) { |
| rc = -EPERM; |
| break; |
| } |
| if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, |
| sizeof(struct qeth_arp_cache_entry))) |
| rc = -EFAULT; |
| else |
| rc = qeth_arp_remove_entry(card, &arp_entry); |
| break; |
| case SIOC_QETH_ARP_FLUSH_CACHE: |
| if ( !capable(CAP_NET_ADMIN) || |
| (card->options.layer2) ) { |
| rc = -EPERM; |
| break; |
| } |
| rc = qeth_arp_flush_cache(card); |
| break; |
| case SIOC_QETH_ADP_SET_SNMP_CONTROL: |
| rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); |
| break; |
| case SIOC_QETH_GET_CARD_TYPE: |
| if ((card->info.type == QETH_CARD_TYPE_OSAE) && |
| !card->info.guestlan) |
| return 1; |
| return 0; |
| break; |
| case SIOCGMIIPHY: |
| mii_data = if_mii(rq); |
| mii_data->phy_id = 0; |
| break; |
| case SIOCGMIIREG: |
| mii_data = if_mii(rq); |
| if (mii_data->phy_id != 0) |
| rc = -EINVAL; |
| else |
| mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id, |
| mii_data->reg_num); |
| break; |
| case SIOCSMIIREG: |
| rc = -EOPNOTSUPP; |
| break; |
| /* TODO: remove return if qeth_mdio_write does something */ |
| if (!capable(CAP_NET_ADMIN)){ |
| rc = -EPERM; |
| break; |
| } |
| mii_data = if_mii(rq); |
| if (mii_data->phy_id != 0) |
| rc = -EINVAL; |
| else |
| qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num, |
| mii_data->val_in); |
| break; |
| default: |
| rc = -EOPNOTSUPP; |
| } |
| if (rc) |
| QETH_DBF_TEXT_(trace, 2, "ioce%d", rc); |
| return rc; |
| } |
| |
| static struct net_device_stats * |
| qeth_get_stats(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| |
| card = (struct qeth_card *) (dev->priv); |
| |
| QETH_DBF_TEXT(trace,5,"getstat"); |
| |
| return &card->stats; |
| } |
| |
| static int |
| qeth_change_mtu(struct net_device *dev, int new_mtu) |
| { |
| struct qeth_card *card; |
| char dbf_text[15]; |
| |
| card = (struct qeth_card *) (dev->priv); |
| |
| QETH_DBF_TEXT(trace,4,"chgmtu"); |
| sprintf(dbf_text, "%8x", new_mtu); |
| QETH_DBF_TEXT(trace,4,dbf_text); |
| |
| if (new_mtu < 64) |
| return -EINVAL; |
| if (new_mtu > 65535) |
| return -EINVAL; |
| if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) && |
| (!qeth_mtu_is_valid(card, new_mtu))) |
| return -EINVAL; |
| dev->mtu = new_mtu; |
| return 0; |
| } |
| |
| #ifdef CONFIG_QETH_VLAN |
| static void |
| qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
| { |
| struct qeth_card *card; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace,4,"vlanreg"); |
| |
| card = (struct qeth_card *) dev->priv; |
| spin_lock_irqsave(&card->vlanlock, flags); |
| card->vlangrp = grp; |
| spin_unlock_irqrestore(&card->vlanlock, flags); |
| } |
| |
| static inline void |
| qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf, |
| unsigned short vid) |
| { |
| int i; |
| struct sk_buff *skb; |
| struct sk_buff_head tmp_list; |
| |
| skb_queue_head_init(&tmp_list); |
| for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){ |
| while ((skb = skb_dequeue(&buf->skb_list))){ |
| if (vlan_tx_tag_present(skb) && |
| (vlan_tx_tag_get(skb) == vid)) { |
| atomic_dec(&skb->users); |
| dev_kfree_skb(skb); |
| } else |
| skb_queue_tail(&tmp_list, skb); |
| } |
| } |
| while ((skb = skb_dequeue(&tmp_list))) |
| skb_queue_tail(&buf->skb_list, skb); |
| } |
| |
| static void |
| qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid) |
| { |
| int i, j; |
| |
| QETH_DBF_TEXT(trace, 4, "frvlskbs"); |
| for (i = 0; i < card->qdio.no_out_queues; ++i){ |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| qeth_free_vlan_buffer(card, &card->qdio. |
| out_qs[i]->bufs[j], vid); |
| } |
| } |
| |
| static void |
| qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid) |
| { |
| struct in_device *in_dev; |
| struct in_ifaddr *ifa; |
| struct qeth_ipaddr *addr; |
| |
| QETH_DBF_TEXT(trace, 4, "frvaddr4"); |
| if (!card->vlangrp) |
| return; |
| rcu_read_lock(); |
| in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]); |
| if (!in_dev) |
| goto out; |
| for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { |
| addr = qeth_get_addr_buffer(QETH_PROT_IPV4); |
| if (addr){ |
| addr->u.a4.addr = ifa->ifa_address; |
| addr->u.a4.mask = ifa->ifa_mask; |
| addr->type = QETH_IP_TYPE_NORMAL; |
| if (!qeth_delete_ip(card, addr)) |
| kfree(addr); |
| } |
| } |
| out: |
| rcu_read_unlock(); |
| } |
| |
| static void |
| qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid) |
| { |
| #ifdef CONFIG_QETH_IPV6 |
| struct inet6_dev *in6_dev; |
| struct inet6_ifaddr *ifa; |
| struct qeth_ipaddr *addr; |
| |
| QETH_DBF_TEXT(trace, 4, "frvaddr6"); |
| if (!card->vlangrp) |
| return; |
| in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]); |
| if (!in6_dev) |
| return; |
| for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){ |
| addr = qeth_get_addr_buffer(QETH_PROT_IPV6); |
| if (addr){ |
| memcpy(&addr->u.a6.addr, &ifa->addr, |
| sizeof(struct in6_addr)); |
| addr->u.a6.pfxlen = ifa->prefix_len; |
| addr->type = QETH_IP_TYPE_NORMAL; |
| if (!qeth_delete_ip(card, addr)) |
| kfree(addr); |
| } |
| } |
| in6_dev_put(in6_dev); |
| #endif /* CONFIG_QETH_IPV6 */ |
| } |
| |
| static void |
| qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i, |
| enum qeth_ipa_cmds ipacmd) |
| { |
| int rc; |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd); |
| iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setdelvlan.vlan_id = i; |
| |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| if (rc) { |
| PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. " |
| "Continuing\n",i, QETH_CARD_IFNAME(card), rc); |
| QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd); |
| QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card)); |
| QETH_DBF_TEXT_(trace, 2, "err%d", rc); |
| } |
| } |
| |
| static void |
| qeth_layer2_process_vlans(struct qeth_card *card, int clear) |
| { |
| unsigned short i; |
| |
| QETH_DBF_TEXT(trace, 3, "L2prcvln"); |
| |
| if (!card->vlangrp) |
| return; |
| for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { |
| if (card->vlangrp->vlan_devices[i] == NULL) |
| continue; |
| if (clear) |
| qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN); |
| else |
| qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN); |
| } |
| } |
| |
| /*add_vid is layer 2 used only ....*/ |
| static void |
| qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT_(trace, 4, "aid:%d", vid); |
| |
| card = (struct qeth_card *) dev->priv; |
| if (!card->options.layer2) |
| return; |
| qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); |
| } |
| |
| /*... kill_vid used for both modes*/ |
| static void |
| qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct qeth_card *card; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT_(trace, 4, "kid:%d", vid); |
| |
| card = (struct qeth_card *) dev->priv; |
| /* free all skbs for the vlan device */ |
| qeth_free_vlan_skbs(card, vid); |
| spin_lock_irqsave(&card->vlanlock, flags); |
| /* unregister IP addresses of vlan device */ |
| qeth_free_vlan_addresses4(card, vid); |
| qeth_free_vlan_addresses6(card, vid); |
| if (card->vlangrp) |
| card->vlangrp->vlan_devices[vid] = NULL; |
| spin_unlock_irqrestore(&card->vlanlock, flags); |
| if (card->options.layer2) |
| qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); |
| qeth_set_multicast_list(card->dev); |
| } |
| #endif |
| |
| /** |
| * set multicast address on card |
| */ |
| static void |
| qeth_set_multicast_list(struct net_device *dev) |
| { |
| struct qeth_card *card = (struct qeth_card *) dev->priv; |
| |
| QETH_DBF_TEXT(trace,3,"setmulti"); |
| qeth_delete_mc_addresses(card); |
| qeth_add_multicast_ipv4(card); |
| #ifdef CONFIG_QETH_IPV6 |
| qeth_add_multicast_ipv6(card); |
| #endif |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| } |
| |
| static int |
| qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np) |
| { |
| return 0; |
| } |
| |
| static void |
| qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev) |
| { |
| if (dev->type == ARPHRD_IEEE802_TR) |
| ip_tr_mc_map(ipm, mac); |
| else |
| ip_eth_mc_map(ipm, mac); |
| } |
| |
| static struct qeth_ipaddr * |
| qeth_get_addr_buffer(enum qeth_prot_versions prot) |
| { |
| struct qeth_ipaddr *addr; |
| |
| addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC); |
| if (addr == NULL) { |
| PRINT_WARN("Not enough memory to add address\n"); |
| return NULL; |
| } |
| memset(addr,0,sizeof(struct qeth_ipaddr)); |
| addr->type = QETH_IP_TYPE_NORMAL; |
| addr->proto = prot; |
| return addr; |
| } |
| |
| static void |
| qeth_delete_mc_addresses(struct qeth_card *card) |
| { |
| struct qeth_ipaddr *iptodo; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace,4,"delmc"); |
| iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4); |
| if (!iptodo) { |
| QETH_DBF_TEXT(trace, 2, "dmcnomem"); |
| return; |
| } |
| iptodo->type = QETH_IP_TYPE_DEL_ALL_MC; |
| spin_lock_irqsave(&card->ip_lock, flags); |
| if (!__qeth_insert_ip_todo(card, iptodo, 0)) |
| kfree(iptodo); |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| } |
| |
| static inline void |
| qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev) |
| { |
| struct qeth_ipaddr *ipm; |
| struct ip_mc_list *im4; |
| char buf[MAX_ADDR_LEN]; |
| |
| QETH_DBF_TEXT(trace,4,"addmc"); |
| for (im4 = in4_dev->mc_list; im4; im4 = im4->next) { |
| qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev); |
| ipm = qeth_get_addr_buffer(QETH_PROT_IPV4); |
| if (!ipm) |
| continue; |
| ipm->u.a4.addr = im4->multiaddr; |
| memcpy(ipm->mac,buf,OSA_ADDR_LEN); |
| ipm->is_multicast = 1; |
| if (!qeth_add_ip(card,ipm)) |
| kfree(ipm); |
| } |
| } |
| |
| static inline void |
| qeth_add_vlan_mc(struct qeth_card *card) |
| { |
| #ifdef CONFIG_QETH_VLAN |
| struct in_device *in_dev; |
| struct vlan_group *vg; |
| int i; |
| |
| QETH_DBF_TEXT(trace,4,"addmcvl"); |
| if ( ((card->options.layer2 == 0) && |
| (!qeth_is_supported(card,IPA_FULL_VLAN))) || |
| (card->vlangrp == NULL) ) |
| return ; |
| |
| vg = card->vlangrp; |
| for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { |
| if (vg->vlan_devices[i] == NULL || |
| !(vg->vlan_devices[i]->flags & IFF_UP)) |
| continue; |
| in_dev = in_dev_get(vg->vlan_devices[i]); |
| if (!in_dev) |
| continue; |
| read_lock(&in_dev->mc_list_lock); |
| qeth_add_mc(card,in_dev); |
| read_unlock(&in_dev->mc_list_lock); |
| in_dev_put(in_dev); |
| } |
| #endif |
| } |
| |
| static void |
| qeth_add_multicast_ipv4(struct qeth_card *card) |
| { |
| struct in_device *in4_dev; |
| |
| QETH_DBF_TEXT(trace,4,"chkmcv4"); |
| in4_dev = in_dev_get(card->dev); |
| if (in4_dev == NULL) |
| return; |
| read_lock(&in4_dev->mc_list_lock); |
| qeth_add_mc(card, in4_dev); |
| qeth_add_vlan_mc(card); |
| read_unlock(&in4_dev->mc_list_lock); |
| in_dev_put(in4_dev); |
| } |
| |
| #ifdef CONFIG_QETH_IPV6 |
| static inline void |
| qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev) |
| { |
| struct qeth_ipaddr *ipm; |
| struct ifmcaddr6 *im6; |
| char buf[MAX_ADDR_LEN]; |
| |
| QETH_DBF_TEXT(trace,4,"addmc6"); |
| for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) { |
| ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0); |
| ipm = qeth_get_addr_buffer(QETH_PROT_IPV6); |
| if (!ipm) |
| continue; |
| ipm->is_multicast = 1; |
| memcpy(ipm->mac,buf,OSA_ADDR_LEN); |
| memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr, |
| sizeof(struct in6_addr)); |
| if (!qeth_add_ip(card,ipm)) |
| kfree(ipm); |
| } |
| } |
| |
| static inline void |
| qeth_add_vlan_mc6(struct qeth_card *card) |
| { |
| #ifdef CONFIG_QETH_VLAN |
| struct inet6_dev *in_dev; |
| struct vlan_group *vg; |
| int i; |
| |
| QETH_DBF_TEXT(trace,4,"admc6vl"); |
| if ( ((card->options.layer2 == 0) && |
| (!qeth_is_supported(card,IPA_FULL_VLAN))) || |
| (card->vlangrp == NULL)) |
| return ; |
| |
| vg = card->vlangrp; |
| for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { |
| if (vg->vlan_devices[i] == NULL || |
| !(vg->vlan_devices[i]->flags & IFF_UP)) |
| continue; |
| in_dev = in6_dev_get(vg->vlan_devices[i]); |
| if (!in_dev) |
| continue; |
| read_lock(&in_dev->lock); |
| qeth_add_mc6(card,in_dev); |
| read_unlock(&in_dev->lock); |
| in6_dev_put(in_dev); |
| } |
| #endif /* CONFIG_QETH_VLAN */ |
| } |
| |
| static void |
| qeth_add_multicast_ipv6(struct qeth_card *card) |
| { |
| struct inet6_dev *in6_dev; |
| |
| QETH_DBF_TEXT(trace,4,"chkmcv6"); |
| if ((card->options.layer2 == 0) && |
| (!qeth_is_supported(card, IPA_IPV6)) ) |
| return ; |
| |
| in6_dev = in6_dev_get(card->dev); |
| if (in6_dev == NULL) |
| return; |
| read_lock(&in6_dev->lock); |
| qeth_add_mc6(card, in6_dev); |
| qeth_add_vlan_mc6(card); |
| read_unlock(&in6_dev->lock); |
| in6_dev_put(in6_dev); |
| } |
| #endif /* CONFIG_QETH_IPV6 */ |
| |
| static int |
| qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac, |
| enum qeth_ipa_cmds ipacmd, |
| int (*reply_cb) (struct qeth_card *, |
| struct qeth_reply*, |
| unsigned long)) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(trace, 2, "L2sdmac"); |
| iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; |
| memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); |
| return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); |
| } |
| |
| static int |
| qeth_layer2_send_setgroupmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| __u8 *mac; |
| |
| QETH_DBF_TEXT(trace, 2, "L2Sgmacb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| mac = &cmd->data.setdelmac.mac[0]; |
| /* MAC already registered, needed in couple/uncouple case */ |
| if (cmd->hdr.return_code == 0x2005) { |
| PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \ |
| "already existing on %s \n", |
| mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], |
| QETH_CARD_IFNAME(card)); |
| cmd->hdr.return_code = 0; |
| } |
| if (cmd->hdr.return_code) |
| PRINT_ERR("Could not set group MAC " \ |
| "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", |
| mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], |
| QETH_CARD_IFNAME(card),cmd->hdr.return_code); |
| return 0; |
| } |
| |
| static int |
| qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(trace, 2, "L2Sgmac"); |
| return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
| qeth_layer2_send_setgroupmac_cb); |
| } |
| |
| static int |
| qeth_layer2_send_delgroupmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| __u8 *mac; |
| |
| QETH_DBF_TEXT(trace, 2, "L2Dgmacb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| mac = &cmd->data.setdelmac.mac[0]; |
| if (cmd->hdr.return_code) |
| PRINT_ERR("Could not delete group MAC " \ |
| "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", |
| mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], |
| QETH_CARD_IFNAME(card), cmd->hdr.return_code); |
| return 0; |
| } |
| |
| static int |
| qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(trace, 2, "L2Dgmac"); |
| return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
| qeth_layer2_send_delgroupmac_cb); |
| } |
| |
| static int |
| qeth_layer2_send_setmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace, 2, "L2Smaccb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code) { |
| QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code); |
| PRINT_WARN("Error in registering MAC address on " \ |
| "device %s: x%x\n", CARD_BUS_ID(card), |
| cmd->hdr.return_code); |
| card->info.layer2_mac_registered = 0; |
| cmd->hdr.return_code = -EIO; |
| } else { |
| card->info.layer2_mac_registered = 1; |
| memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac, |
| OSA_ADDR_LEN); |
| PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " |
| "successfully registered on device %s\n", |
| card->dev->dev_addr[0], card->dev->dev_addr[1], |
| card->dev->dev_addr[2], card->dev->dev_addr[3], |
| card->dev->dev_addr[4], card->dev->dev_addr[5], |
| card->dev->name); |
| } |
| return 0; |
| } |
| |
| static int |
| qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(trace, 2, "L2Setmac"); |
| return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
| qeth_layer2_send_setmac_cb); |
| } |
| |
| static int |
| qeth_layer2_send_delmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace, 2, "L2Dmaccb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code) { |
| PRINT_WARN("Error in deregistering MAC address on " \ |
| "device %s: x%x\n", CARD_BUS_ID(card), |
| cmd->hdr.return_code); |
| QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code); |
| cmd->hdr.return_code = -EIO; |
| return 0; |
| } |
| card->info.layer2_mac_registered = 0; |
| |
| return 0; |
| } |
| static int |
| qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(trace, 2, "L2Delmac"); |
| if (!card->info.layer2_mac_registered) |
| return 0; |
| return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, |
| qeth_layer2_send_delmac_cb); |
| } |
| |
| static int |
| qeth_layer2_set_mac_address(struct net_device *dev, void *p) |
| { |
| struct sockaddr *addr = p; |
| struct qeth_card *card; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace, 3, "setmac"); |
| |
| if (qeth_verify_dev(dev) != QETH_REAL_CARD) { |
| QETH_DBF_TEXT(trace, 3, "setmcINV"); |
| return -EOPNOTSUPP; |
| } |
| card = (struct qeth_card *) dev->priv; |
| |
| if (!card->options.layer2) { |
| PRINT_WARN("Setting MAC address on %s is not supported" |
| "in Layer 3 mode.\n", dev->name); |
| QETH_DBF_TEXT(trace, 3, "setmcLY3"); |
| return -EOPNOTSUPP; |
| } |
| QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card)); |
| QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN); |
| rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]); |
| if (!rc) |
| rc = qeth_layer2_send_setmac(card, addr->sa_data); |
| return rc; |
| } |
| |
| static void |
| qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd, |
| __u8 command, enum qeth_prot_versions prot) |
| { |
| memset(cmd, 0, sizeof (struct qeth_ipa_cmd)); |
| cmd->hdr.command = command; |
| cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; |
| cmd->hdr.seqno = card->seqno.ipa; |
| cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); |
| cmd->hdr.rel_adapter_no = (__u8) card->info.portno; |
| if (card->options.layer2) |
| cmd->hdr.prim_version_no = 2; |
| else |
| cmd->hdr.prim_version_no = 1; |
| cmd->hdr.param_count = 1; |
| cmd->hdr.prot_version = prot; |
| cmd->hdr.ipa_supported = 0; |
| cmd->hdr.ipa_enabled = 0; |
| } |
| |
| static struct qeth_cmd_buffer * |
| qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd, |
| enum qeth_prot_versions prot) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); |
| |
| return iob; |
| } |
| |
| static int |
| qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"setdelmc"); |
| |
| iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN); |
| if (addr->proto == QETH_PROT_IPV6) |
| memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr, |
| sizeof(struct in6_addr)); |
| else |
| memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4); |
| |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| |
| return rc; |
| } |
| static inline void |
| qeth_fill_netmask(u8 *netmask, unsigned int len) |
| { |
| int i,j; |
| for (i=0;i<16;i++) { |
| j=(len)-(i*8); |
| if (j >= 8) |
| netmask[i] = 0xff; |
| else if (j > 0) |
| netmask[i] = (u8)(0xFF00>>j); |
| else |
| netmask[i] = 0; |
| } |
| } |
| |
| static int |
| qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr, |
| int ipacmd, unsigned int flags) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| __u8 netmask[16]; |
| |
| QETH_DBF_TEXT(trace,4,"setdelip"); |
| QETH_DBF_TEXT_(trace,4,"flags%02X", flags); |
| |
| iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| if (addr->proto == QETH_PROT_IPV6) { |
| memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr, |
| sizeof(struct in6_addr)); |
| qeth_fill_netmask(netmask,addr->u.a6.pfxlen); |
| memcpy(cmd->data.setdelip6.mask, netmask, |
| sizeof(struct in6_addr)); |
| cmd->data.setdelip6.flags = flags; |
| } else { |
| memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4); |
| memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4); |
| cmd->data.setdelip4.flags = flags; |
| } |
| |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| |
| return rc; |
| } |
| |
| static int |
| qeth_layer2_register_addr_entry(struct qeth_card *card, |
| struct qeth_ipaddr *addr) |
| { |
| if (!addr->is_multicast) |
| return 0; |
| QETH_DBF_TEXT(trace, 2, "setgmac"); |
| QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN); |
| return qeth_layer2_send_setgroupmac(card, &addr->mac[0]); |
| } |
| |
| static int |
| qeth_layer2_deregister_addr_entry(struct qeth_card *card, |
| struct qeth_ipaddr *addr) |
| { |
| if (!addr->is_multicast) |
| return 0; |
| QETH_DBF_TEXT(trace, 2, "delgmac"); |
| QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN); |
| return qeth_layer2_send_delgroupmac(card, &addr->mac[0]); |
| } |
| |
| static int |
| qeth_layer3_register_addr_entry(struct qeth_card *card, |
| struct qeth_ipaddr *addr) |
| { |
| char buf[50]; |
| int rc; |
| int cnt = 3; |
| |
| if (addr->proto == QETH_PROT_IPV4) { |
| QETH_DBF_TEXT(trace, 2,"setaddr4"); |
| QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int)); |
| } else if (addr->proto == QETH_PROT_IPV6) { |
| QETH_DBF_TEXT(trace, 2, "setaddr6"); |
| QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8); |
| QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8); |
| } else { |
| QETH_DBF_TEXT(trace, 2, "setaddr?"); |
| QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr)); |
| } |
| do { |
| if (addr->is_multicast) |
| rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM); |
| else |
| rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP, |
| addr->set_flags); |
| if (rc) |
| QETH_DBF_TEXT(trace, 2, "failed"); |
| } while ((--cnt > 0) && rc); |
| if (rc){ |
| QETH_DBF_TEXT(trace, 2, "FAILED"); |
| qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); |
| PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n", |
| buf, rc, rc); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_layer3_deregister_addr_entry(struct qeth_card *card, |
| struct qeth_ipaddr *addr) |
| { |
| //char buf[50]; |
| int rc; |
| |
| if (addr->proto == QETH_PROT_IPV4) { |
| QETH_DBF_TEXT(trace, 2,"deladdr4"); |
| QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int)); |
| } else if (addr->proto == QETH_PROT_IPV6) { |
| QETH_DBF_TEXT(trace, 2, "deladdr6"); |
| QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8); |
| QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8); |
| } else { |
| QETH_DBF_TEXT(trace, 2, "deladdr?"); |
| QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr)); |
| } |
| if (addr->is_multicast) |
| rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM); |
| else |
| rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP, |
| addr->del_flags); |
| if (rc) { |
| QETH_DBF_TEXT(trace, 2, "failed"); |
| /* TODO: re-activate this warning as soon as we have a |
| * clean mirco code |
| qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); |
| PRINT_WARN("Could not deregister IP address %s (rc=%x)\n", |
| buf, rc); |
| */ |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr) |
| { |
| if (card->options.layer2) |
| return qeth_layer2_register_addr_entry(card, addr); |
| |
| return qeth_layer3_register_addr_entry(card, addr); |
| } |
| |
| static int |
| qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr) |
| { |
| if (card->options.layer2) |
| return qeth_layer2_deregister_addr_entry(card, addr); |
| |
| return qeth_layer3_deregister_addr_entry(card, addr); |
| } |
| |
| static u32 |
| qeth_ethtool_get_tx_csum(struct net_device *dev) |
| { |
| /* We may need to say that we support tx csum offload if |
| * we do EDDP or TSO. There are discussions going on to |
| * enforce rules in the stack and in ethtool that make |
| * SG and TSO depend on HW_CSUM. At the moment there are |
| * no such rules.... |
| * If we say yes here, we have to checksum outbound packets |
| * any time. */ |
| return 0; |
| } |
| |
| static int |
| qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data) |
| { |
| return -EINVAL; |
| } |
| |
| static u32 |
| qeth_ethtool_get_rx_csum(struct net_device *dev) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| |
| return (card->options.checksum_type == HW_CHECKSUMMING); |
| } |
| |
| static int |
| qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| |
| if ((card->state != CARD_STATE_DOWN) && |
| (card->state != CARD_STATE_RECOVER)) |
| return -EPERM; |
| if (data) |
| card->options.checksum_type = HW_CHECKSUMMING; |
| else |
| card->options.checksum_type = SW_CHECKSUMMING; |
| return 0; |
| } |
| |
| static u32 |
| qeth_ethtool_get_sg(struct net_device *dev) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| |
| return ((card->options.large_send != QETH_LARGE_SEND_NO) && |
| (dev->features & NETIF_F_SG)); |
| } |
| |
| static int |
| qeth_ethtool_set_sg(struct net_device *dev, u32 data) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| |
| if (data) { |
| if (card->options.large_send != QETH_LARGE_SEND_NO) |
| dev->features |= NETIF_F_SG; |
| else { |
| dev->features &= ~NETIF_F_SG; |
| return -EINVAL; |
| } |
| } else |
| dev->features &= ~NETIF_F_SG; |
| return 0; |
| } |
| |
| static u32 |
| qeth_ethtool_get_tso(struct net_device *dev) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| |
| return ((card->options.large_send != QETH_LARGE_SEND_NO) && |
| (dev->features & NETIF_F_TSO)); |
| } |
| |
| static int |
| qeth_ethtool_set_tso(struct net_device *dev, u32 data) |
| { |
| struct qeth_card *card = (struct qeth_card *)dev->priv; |
| |
| if (data) { |
| if (card->options.large_send != QETH_LARGE_SEND_NO) |
| dev->features |= NETIF_F_TSO; |
| else { |
| dev->features &= ~NETIF_F_TSO; |
| return -EINVAL; |
| } |
| } else |
| dev->features &= ~NETIF_F_TSO; |
| return 0; |
| } |
| |
| static struct ethtool_ops qeth_ethtool_ops = { |
| .get_tx_csum = qeth_ethtool_get_tx_csum, |
| .set_tx_csum = qeth_ethtool_set_tx_csum, |
| .get_rx_csum = qeth_ethtool_get_rx_csum, |
| .set_rx_csum = qeth_ethtool_set_rx_csum, |
| .get_sg = qeth_ethtool_get_sg, |
| .set_sg = qeth_ethtool_set_sg, |
| .get_tso = qeth_ethtool_get_tso, |
| .set_tso = qeth_ethtool_set_tso, |
| }; |
| |
| static int |
| qeth_netdev_init(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| |
| card = (struct qeth_card *) dev->priv; |
| |
| QETH_DBF_TEXT(trace,3,"initdev"); |
| |
| dev->tx_timeout = &qeth_tx_timeout; |
| dev->watchdog_timeo = QETH_TX_TIMEOUT; |
| dev->open = qeth_open; |
| dev->stop = qeth_stop; |
| dev->hard_start_xmit = qeth_hard_start_xmit; |
| dev->do_ioctl = qeth_do_ioctl; |
| dev->get_stats = qeth_get_stats; |
| dev->change_mtu = qeth_change_mtu; |
| dev->neigh_setup = qeth_neigh_setup; |
| dev->set_multicast_list = qeth_set_multicast_list; |
| #ifdef CONFIG_QETH_VLAN |
| dev->vlan_rx_register = qeth_vlan_rx_register; |
| dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid; |
| dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid; |
| #endif |
| dev->hard_header = card->orig_hard_header; |
| if (qeth_get_netdev_flags(card) & IFF_NOARP) { |
| dev->rebuild_header = NULL; |
| dev->hard_header = NULL; |
| if (card->options.fake_ll) |
| dev->hard_header = qeth_fake_header; |
| dev->header_cache_update = NULL; |
| dev->hard_header_cache = NULL; |
| } |
| #ifdef CONFIG_QETH_IPV6 |
| /*IPv6 address autoconfiguration stuff*/ |
| if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) |
| card->dev->dev_id = card->info.unique_id & 0xffff; |
| #endif |
| dev->hard_header_parse = NULL; |
| dev->set_mac_address = qeth_layer2_set_mac_address; |
| dev->flags |= qeth_get_netdev_flags(card); |
| if ((card->options.fake_broadcast) || |
| (card->info.broadcast_capable)) |
| dev->flags |= IFF_BROADCAST; |
| dev->hard_header_len = |
| qeth_get_hlen(card->info.link_type) + card->options.add_hhlen; |
| dev->addr_len = OSA_ADDR_LEN; |
| dev->mtu = card->info.initial_mtu; |
| |
| SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops); |
| |
| SET_MODULE_OWNER(dev); |
| return 0; |
| } |
| |
| static void |
| qeth_init_func_level(struct qeth_card *card) |
| { |
| if (card->ipato.enabled) { |
| if (card->info.type == QETH_CARD_TYPE_IQD) |
| card->info.func_level = |
| QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; |
| else |
| card->info.func_level = |
| QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT; |
| } else { |
| if (card->info.type == QETH_CARD_TYPE_IQD) |
| card->info.func_level = |
| QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; |
| else |
| card->info.func_level = |
| QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT; |
| } |
| } |
| |
| /** |
| * hardsetup card, initialize MPC and QDIO stuff |
| */ |
| static int |
| qeth_hardsetup_card(struct qeth_card *card) |
| { |
| int retries = 3; |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "hrdsetup"); |
| |
| retry: |
| if (retries < 3){ |
| PRINT_WARN("Retrying to do IDX activates.\n"); |
| ccw_device_set_offline(CARD_DDEV(card)); |
| ccw_device_set_offline(CARD_WDEV(card)); |
| ccw_device_set_offline(CARD_RDEV(card)); |
| ccw_device_set_online(CARD_RDEV(card)); |
| ccw_device_set_online(CARD_WDEV(card)); |
| ccw_device_set_online(CARD_DDEV(card)); |
| } |
| rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE); |
| if (rc == -ERESTARTSYS) { |
| QETH_DBF_TEXT(setup, 2, "break1"); |
| return rc; |
| } else if (rc) { |
| QETH_DBF_TEXT_(setup, 2, "1err%d", rc); |
| if (--retries < 0) |
| goto out; |
| else |
| goto retry; |
| } |
| if ((rc = qeth_get_unitaddr(card))){ |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| return rc; |
| } |
| qeth_init_tokens(card); |
| qeth_init_func_level(card); |
| rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); |
| if (rc == -ERESTARTSYS) { |
| QETH_DBF_TEXT(setup, 2, "break2"); |
| return rc; |
| } else if (rc) { |
| QETH_DBF_TEXT_(setup, 2, "3err%d", rc); |
| if (--retries < 0) |
| goto out; |
| else |
| goto retry; |
| } |
| rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); |
| if (rc == -ERESTARTSYS) { |
| QETH_DBF_TEXT(setup, 2, "break3"); |
| return rc; |
| } else if (rc) { |
| QETH_DBF_TEXT_(setup, 2, "4err%d", rc); |
| if (--retries < 0) |
| goto out; |
| else |
| goto retry; |
| } |
| if ((rc = qeth_mpc_initialize(card))){ |
| QETH_DBF_TEXT_(setup, 2, "5err%d", rc); |
| goto out; |
| } |
| /*network device will be recovered*/ |
| if (card->dev) { |
| card->dev->hard_header = card->orig_hard_header; |
| return 0; |
| } |
| /* at first set_online allocate netdev */ |
| card->dev = qeth_get_netdevice(card->info.type, |
| card->info.link_type); |
| if (!card->dev){ |
| qeth_qdio_clear_card(card, card->info.type == |
| QETH_CARD_TYPE_OSAE); |
| rc = -ENODEV; |
| QETH_DBF_TEXT_(setup, 2, "6err%d", rc); |
| goto out; |
| } |
| card->dev->priv = card; |
| card->orig_hard_header = card->dev->hard_header; |
| card->dev->type = qeth_get_arphdr_type(card->info.type, |
| card->info.link_type); |
| card->dev->init = qeth_netdev_init; |
| return 0; |
| out: |
| PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc); |
| return rc; |
| } |
| |
| static int |
| qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"defadpcb"); |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code == 0){ |
| cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; |
| if (cmd->hdr.prot_version == QETH_PROT_IPV4) |
| card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; |
| #ifdef CONFIG_QETH_IPV6 |
| if (cmd->hdr.prot_version == QETH_PROT_IPV6) |
| card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; |
| #endif |
| } |
| if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM && |
| cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { |
| card->info.csum_mask = cmd->data.setassparms.data.flags_32bit; |
| QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask); |
| } |
| return 0; |
| } |
| |
| static int |
| qeth_default_setadapterparms_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"defadpcb"); |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code == 0) |
| cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code; |
| return 0; |
| } |
| |
| static int |
| qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,3,"quyadpcb"); |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) |
| card->info.link_type = |
| cmd->data.setadapterparms.data.query_cmds_supp.lan_type; |
| card->options.adp.supported_funcs = |
| cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; |
| return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| } |
| |
| static int |
| qeth_query_setadapterparms(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(trace,3,"queryadp"); |
| iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
| sizeof(struct qeth_ipacmd_setadpparms)); |
| rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); |
| return rc; |
| } |
| |
| static int |
| qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"chgmaccb"); |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| memcpy(card->dev->dev_addr, |
| &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN); |
| qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
| return 0; |
| } |
| |
| static int |
| qeth_setadpparms_change_macaddr(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"chgmac"); |
| |
| iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS, |
| sizeof(struct qeth_ipacmd_setadpparms)); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; |
| cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; |
| memcpy(&cmd->data.setadapterparms.data.change_addr.addr, |
| card->dev->dev_addr, OSA_ADDR_LEN); |
| rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, |
| NULL); |
| return rc; |
| } |
| |
| static int |
| qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"adpmode"); |
| |
| iob = qeth_get_adapter_cmd(card, command, |
| sizeof(struct qeth_ipacmd_setadpparms)); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setadapterparms.data.mode = mode; |
| rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb, |
| NULL); |
| return rc; |
| } |
| |
| static inline int |
| qeth_setadapter_hstr(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,4,"adphstr"); |
| |
| if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) { |
| rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE, |
| card->options.broadcast_mode); |
| if (rc) |
| PRINT_WARN("couldn't set broadcast mode on " |
| "device %s: x%x\n", |
| CARD_BUS_ID(card), rc); |
| rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS, |
| card->options.macaddr_mode); |
| if (rc) |
| PRINT_WARN("couldn't set macaddr mode on " |
| "device %s: x%x\n", CARD_BUS_ID(card), rc); |
| return rc; |
| } |
| if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL) |
| PRINT_WARN("set adapter parameters not available " |
| "to set broadcast mode, using ALLRINGS " |
| "on device %s:\n", CARD_BUS_ID(card)); |
| if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL) |
| PRINT_WARN("set adapter parameters not available " |
| "to set macaddr mode, using NONCANONICAL " |
| "on device %s:\n", CARD_BUS_ID(card)); |
| return 0; |
| } |
| |
| static int |
| qeth_setadapter_parms(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "setadprm"); |
| |
| if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){ |
| PRINT_WARN("set adapter parameters not supported " |
| "on device %s.\n", |
| CARD_BUS_ID(card)); |
| QETH_DBF_TEXT(setup, 2, " notsupp"); |
| return 0; |
| } |
| rc = qeth_query_setadapterparms(card); |
| if (rc) { |
| PRINT_WARN("couldn't set adapter parameters on device %s: " |
| "x%x\n", CARD_BUS_ID(card), rc); |
| return rc; |
| } |
| if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) { |
| rc = qeth_setadpparms_change_macaddr(card); |
| if (rc) |
| PRINT_WARN("couldn't get MAC address on " |
| "device %s: x%x\n", |
| CARD_BUS_ID(card), rc); |
| } |
| |
| if ((card->info.link_type == QETH_LINK_TYPE_HSTR) || |
| (card->info.link_type == QETH_LINK_TYPE_LANE_TR)) |
| rc = qeth_setadapter_hstr(card); |
| |
| return rc; |
| } |
| |
| static int |
| qeth_layer2_initialize(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| |
| QETH_DBF_TEXT(setup, 2, "doL2init"); |
| QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card)); |
| |
| rc = qeth_setadpparms_change_macaddr(card); |
| if (rc) { |
| PRINT_WARN("couldn't get MAC address on " |
| "device %s: x%x\n", |
| CARD_BUS_ID(card), rc); |
| QETH_DBF_TEXT_(setup, 2,"1err%d",rc); |
| return rc; |
| } |
| QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN); |
| |
| rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]); |
| if (rc) |
| QETH_DBF_TEXT_(setup, 2,"2err%d",rc); |
| return 0; |
| } |
| |
| |
| static int |
| qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd, |
| enum qeth_prot_versions prot) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| iob = qeth_get_ipacmd_buffer(card,ipacmd,prot); |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| |
| return rc; |
| } |
| |
| static int |
| qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot); |
| |
| rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot); |
| return rc; |
| } |
| |
| static int |
| qeth_send_stoplan(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| /* |
| * TODO: according to the IPA format document page 14, |
| * TCP/IP (we!) never issue a STOPLAN |
| * is this right ?!? |
| */ |
| QETH_DBF_TEXT(trace, 2, "stoplan"); |
| |
| rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4); |
| return rc; |
| } |
| |
| static int |
| qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(setup, 2, "qipasscb"); |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.prot_version == QETH_PROT_IPV4) { |
| card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; |
| card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; |
| } else { |
| #ifdef CONFIG_QETH_IPV6 |
| card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; |
| card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; |
| #endif |
| } |
| QETH_DBF_TEXT(setup, 2, "suppenbl"); |
| QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported); |
| QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled); |
| return 0; |
| } |
| |
| static int |
| qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot); |
| if (card->options.layer2) { |
| QETH_DBF_TEXT(setup, 2, "noprmly2"); |
| return -EPERM; |
| } |
| |
| iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot); |
| rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); |
| return rc; |
| } |
| |
| static struct qeth_cmd_buffer * |
| qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func, |
| __u16 cmd_code, __u16 len, |
| enum qeth_prot_versions prot) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"getasscm"); |
| iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot); |
| |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setassparms.hdr.assist_no = ipa_func; |
| cmd->data.setassparms.hdr.length = 8 + len; |
| cmd->data.setassparms.hdr.command_code = cmd_code; |
| cmd->data.setassparms.hdr.return_code = 0; |
| cmd->data.setassparms.hdr.seq_no = 0; |
| |
| return iob; |
| } |
| |
| static int |
| qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| __u16 len, long data, |
| int (*reply_cb) |
| (struct qeth_card *,struct qeth_reply *,unsigned long), |
| void *reply_param) |
| { |
| int rc; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,4,"sendassp"); |
| |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| if (len <= sizeof(__u32)) |
| cmd->data.setassparms.data.flags_32bit = (__u32) data; |
| else if (len > sizeof(__u32)) |
| memcpy(&cmd->data.setassparms.data, (void *) data, len); |
| |
| rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param); |
| return rc; |
| } |
| |
| #ifdef CONFIG_QETH_IPV6 |
| static int |
| qeth_send_simple_setassparms_ipv6(struct qeth_card *card, |
| enum qeth_ipa_funcs ipa_func, __u16 cmd_code) |
| |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(trace,4,"simassp6"); |
| iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, |
| 0, QETH_PROT_IPV6); |
| rc = qeth_send_setassparms(card, iob, 0, 0, |
| qeth_default_setassparms_cb, NULL); |
| return rc; |
| } |
| #endif |
| |
| static int |
| qeth_send_simple_setassparms(struct qeth_card *card, |
| enum qeth_ipa_funcs ipa_func, |
| __u16 cmd_code, long data) |
| { |
| int rc; |
| int length = 0; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(trace,4,"simassp4"); |
| if (data) |
| length = sizeof(__u32); |
| iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, |
| length, QETH_PROT_IPV4); |
| rc = qeth_send_setassparms(card, iob, length, data, |
| qeth_default_setassparms_cb, NULL); |
| return rc; |
| } |
| |
| static inline int |
| qeth_start_ipa_arp_processing(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"ipaarp"); |
| |
| if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { |
| PRINT_WARN("ARP processing not supported " |
| "on %s!\n", QETH_CARD_IFNAME(card)); |
| return 0; |
| } |
| rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING, |
| IPA_CMD_ASS_START, 0); |
| if (rc) { |
| PRINT_WARN("Could not start ARP processing " |
| "assist on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_start_ipa_ip_fragmentation(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"ipaipfrg"); |
| |
| if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) { |
| PRINT_INFO("Hardware IP fragmentation not supported on %s\n", |
| QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| |
| rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION, |
| IPA_CMD_ASS_START, 0); |
| if (rc) { |
| PRINT_WARN("Could not start Hardware IP fragmentation " |
| "assist on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| } else |
| PRINT_INFO("Hardware IP fragmentation enabled \n"); |
| return rc; |
| } |
| |
| static int |
| qeth_start_ipa_source_mac(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"stsrcmac"); |
| |
| if (!card->options.fake_ll) |
| return -EOPNOTSUPP; |
| |
| if (!qeth_is_supported(card, IPA_SOURCE_MAC)) { |
| PRINT_INFO("Inbound source address not " |
| "supported on %s\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| |
| rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC, |
| IPA_CMD_ASS_START, 0); |
| if (rc) |
| PRINT_WARN("Could not start inbound source " |
| "assist on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| return rc; |
| } |
| |
| static int |
| qeth_start_ipa_vlan(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"strtvlan"); |
| |
| #ifdef CONFIG_QETH_VLAN |
| if (!qeth_is_supported(card, IPA_FULL_VLAN)) { |
| PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| |
| rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO, |
| IPA_CMD_ASS_START,0); |
| if (rc) { |
| PRINT_WARN("Could not start vlan " |
| "assist on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| } else { |
| PRINT_INFO("VLAN enabled \n"); |
| card->dev->features |= |
| NETIF_F_HW_VLAN_FILTER | |
| NETIF_F_HW_VLAN_TX | |
| NETIF_F_HW_VLAN_RX; |
| } |
| #endif /* QETH_VLAN */ |
| return rc; |
| } |
| |
| static int |
| qeth_start_ipa_multicast(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"stmcast"); |
| |
| if (!qeth_is_supported(card, IPA_MULTICASTING)) { |
| PRINT_WARN("Multicast not supported on %s\n", |
| QETH_CARD_IFNAME(card)); |
| return -EOPNOTSUPP; |
| } |
| |
| rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING, |
| IPA_CMD_ASS_START,0); |
| if (rc) { |
| PRINT_WARN("Could not start multicast " |
| "assist on %s: rc=%i\n", |
| QETH_CARD_IFNAME(card), rc); |
| } else { |
| PRINT_INFO("Multicast enabled\n"); |
| card->dev->flags |= IFF_MULTICAST; |
| } |
| return rc; |
| } |
| |
| #ifdef CONFIG_QETH_IPV6 |
| static int |
| qeth_softsetup_ipv6(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"softipv6"); |
| |
| netif_stop_queue(card->dev); |
| rc = qeth_send_startlan(card, QETH_PROT_IPV6); |
| if (rc) { |
| PRINT_ERR("IPv6 startlan failed on %s\n", |
| QETH_CARD_IFNAME(card)); |
| return rc; |
| } |
| netif_wake_queue(card->dev); |
| rc = qeth_query_ipassists(card,QETH_PROT_IPV6); |
| if (rc) { |
| PRINT_ERR("IPv6 query ipassist failed on %s\n", |
| QETH_CARD_IFNAME(card)); |
| return rc; |
| } |
| rc = qeth_send_simple_setassparms(card, IPA_IPV6, |
| IPA_CMD_ASS_START, 3); |
| if (rc) { |
| PRINT_WARN("IPv6 start assist (version 4) failed " |
| "on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| return rc; |
| } |
| rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6, |
| IPA_CMD_ASS_START); |
| if (rc) { |
| PRINT_WARN("IPV6 start assist (version 6) failed " |
| "on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| return rc; |
| } |
| rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU, |
| IPA_CMD_ASS_START); |
| if (rc) { |
| PRINT_WARN("Could not enable passthrough " |
| "on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| return rc; |
| } |
| PRINT_INFO("IPV6 enabled \n"); |
| return 0; |
| } |
| |
| #endif |
| |
| static int |
| qeth_start_ipa_ipv6(struct qeth_card *card) |
| { |
| int rc = 0; |
| #ifdef CONFIG_QETH_IPV6 |
| QETH_DBF_TEXT(trace,3,"strtipv6"); |
| |
| if (!qeth_is_supported(card, IPA_IPV6)) { |
| PRINT_WARN("IPv6 not supported on %s\n", |
| QETH_CARD_IFNAME(card)); |
| return 0; |
| } |
| rc = qeth_softsetup_ipv6(card); |
| #endif |
| return rc ; |
| } |
| |
| static int |
| qeth_start_ipa_broadcast(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"stbrdcst"); |
| card->info.broadcast_capable = 0; |
| if (!qeth_is_supported(card, IPA_FILTERING)) { |
| PRINT_WARN("Broadcast not supported on %s\n", |
| QETH_CARD_IFNAME(card)); |
| rc = -EOPNOTSUPP; |
| goto out; |
| } |
| rc = qeth_send_simple_setassparms(card, IPA_FILTERING, |
| IPA_CMD_ASS_START, 0); |
| if (rc) { |
| PRINT_WARN("Could not enable broadcasting filtering " |
| "on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| goto out; |
| } |
| |
| rc = qeth_send_simple_setassparms(card, IPA_FILTERING, |
| IPA_CMD_ASS_CONFIGURE, 1); |
| if (rc) { |
| PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n", |
| QETH_CARD_IFNAME(card), rc); |
| goto out; |
| } |
| card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO; |
| PRINT_INFO("Broadcast enabled \n"); |
| rc = qeth_send_simple_setassparms(card, IPA_FILTERING, |
| IPA_CMD_ASS_ENABLE, 1); |
| if (rc) { |
| PRINT_WARN("Could not set up broadcast echo filtering on " |
| "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc); |
| goto out; |
| } |
| card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO; |
| out: |
| if (card->info.broadcast_capable) |
| card->dev->flags |= IFF_BROADCAST; |
| else |
| card->dev->flags &= ~IFF_BROADCAST; |
| return rc; |
| } |
| |
| static int |
| qeth_send_checksum_command(struct qeth_card *card) |
| { |
| int rc; |
| |
| rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, |
| IPA_CMD_ASS_START, 0); |
| if (rc) { |
| PRINT_WARN("Starting Inbound HW Checksumming failed on %s: " |
| "0x%x,\ncontinuing using Inbound SW Checksumming\n", |
| QETH_CARD_IFNAME(card), rc); |
| return rc; |
| } |
| rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, |
| IPA_CMD_ASS_ENABLE, |
| card->info.csum_mask); |
| if (rc) { |
| PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: " |
| "0x%x,\ncontinuing using Inbound SW Checksumming\n", |
| QETH_CARD_IFNAME(card), rc); |
| return rc; |
| } |
| return 0; |
| } |
| |
| static int |
| qeth_start_ipa_checksum(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"strtcsum"); |
| |
| if (card->options.checksum_type == NO_CHECKSUMMING) { |
| PRINT_WARN("Using no checksumming on %s.\n", |
| QETH_CARD_IFNAME(card)); |
| return 0; |
| } |
| if (card->options.checksum_type == SW_CHECKSUMMING) { |
| PRINT_WARN("Using SW checksumming on %s.\n", |
| QETH_CARD_IFNAME(card)); |
| return 0; |
| } |
| if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { |
| PRINT_WARN("Inbound HW Checksumming not " |
| "supported on %s,\ncontinuing " |
| "using Inbound SW Checksumming\n", |
| QETH_CARD_IFNAME(card)); |
| card->options.checksum_type = SW_CHECKSUMMING; |
| return 0; |
| } |
| rc = qeth_send_checksum_command(card); |
| if (!rc) { |
| PRINT_INFO("HW Checksumming (inbound) enabled \n"); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_start_ipa_tso(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"sttso"); |
| |
| if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) { |
| PRINT_WARN("Outbound TSO not supported on %s\n", |
| QETH_CARD_IFNAME(card)); |
| rc = -EOPNOTSUPP; |
| } else { |
| rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO, |
| IPA_CMD_ASS_START,0); |
| if (rc) |
| PRINT_WARN("Could not start outbound TSO " |
| "assist on %s: rc=%i\n", |
| QETH_CARD_IFNAME(card), rc); |
| else |
| PRINT_INFO("Outbound TSO enabled\n"); |
| } |
| if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){ |
| card->options.large_send = QETH_LARGE_SEND_NO; |
| card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG); |
| } |
| return rc; |
| } |
| |
| static int |
| qeth_start_ipassists(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(trace,3,"strtipas"); |
| qeth_start_ipa_arp_processing(card); /* go on*/ |
| qeth_start_ipa_ip_fragmentation(card); /* go on*/ |
| qeth_start_ipa_source_mac(card); /* go on*/ |
| qeth_start_ipa_vlan(card); /* go on*/ |
| qeth_start_ipa_multicast(card); /* go on*/ |
| qeth_start_ipa_ipv6(card); /* go on*/ |
| qeth_start_ipa_broadcast(card); /* go on*/ |
| qeth_start_ipa_checksum(card); /* go on*/ |
| qeth_start_ipa_tso(card); /* go on*/ |
| return 0; |
| } |
| |
| static int |
| qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type, |
| enum qeth_prot_versions prot) |
| { |
| int rc; |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(trace,4,"setroutg"); |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setrtg.type = (type); |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| |
| return rc; |
| |
| } |
| |
| static void |
| qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type, |
| enum qeth_prot_versions prot) |
| { |
| if (card->info.type == QETH_CARD_TYPE_IQD) { |
| switch (*type) { |
| case NO_ROUTER: |
| case PRIMARY_CONNECTOR: |
| case SECONDARY_CONNECTOR: |
| case MULTICAST_ROUTER: |
| return; |
| default: |
| goto out_inval; |
| } |
| } else { |
| switch (*type) { |
| case NO_ROUTER: |
| case PRIMARY_ROUTER: |
| case SECONDARY_ROUTER: |
| return; |
| case MULTICAST_ROUTER: |
| if (qeth_is_ipafunc_supported(card, prot, |
| IPA_OSA_MC_ROUTER)) |
| return; |
| default: |
| goto out_inval; |
| } |
| } |
| out_inval: |
| PRINT_WARN("Routing type '%s' not supported for interface %s.\n" |
| "Router status set to 'no router'.\n", |
| ((*type == PRIMARY_ROUTER)? "primary router" : |
| (*type == SECONDARY_ROUTER)? "secondary router" : |
| (*type == PRIMARY_CONNECTOR)? "primary connector" : |
| (*type == SECONDARY_CONNECTOR)? "secondary connector" : |
| (*type == MULTICAST_ROUTER)? "multicast router" : |
| "unknown"), |
| card->dev->name); |
| *type = NO_ROUTER; |
| } |
| |
| int |
| qeth_setrouting_v4(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(trace,3,"setrtg4"); |
| |
| qeth_correct_routing_type(card, &card->options.route4.type, |
| QETH_PROT_IPV4); |
| |
| rc = qeth_send_setrouting(card, card->options.route4.type, |
| QETH_PROT_IPV4); |
| if (rc) { |
| card->options.route4.type = NO_ROUTER; |
| PRINT_WARN("Error (0x%04x) while setting routing type on %s. " |
| "Type set to 'no router'.\n", |
| rc, QETH_CARD_IFNAME(card)); |
| } |
| return rc; |
| } |
| |
| int |
| qeth_setrouting_v6(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace,3,"setrtg6"); |
| #ifdef CONFIG_QETH_IPV6 |
| |
| qeth_correct_routing_type(card, &card->options.route6.type, |
| QETH_PROT_IPV6); |
| |
| if ((card->options.route6.type == NO_ROUTER) || |
| ((card->info.type == QETH_CARD_TYPE_OSAE) && |
| (card->options.route6.type == MULTICAST_ROUTER) && |
| !qeth_is_supported6(card,IPA_OSA_MC_ROUTER))) |
| return 0; |
| rc = qeth_send_setrouting(card, card->options.route6.type, |
| QETH_PROT_IPV6); |
| if (rc) { |
| card->options.route6.type = NO_ROUTER; |
| PRINT_WARN("Error (0x%04x) while setting routing type on %s. " |
| "Type set to 'no router'.\n", |
| rc, QETH_CARD_IFNAME(card)); |
| } |
| #endif |
| return rc; |
| } |
| |
| int |
| qeth_set_large_send(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| if (card->dev == NULL) |
| return 0; |
| |
| netif_stop_queue(card->dev); |
| switch (card->options.large_send) { |
| case QETH_LARGE_SEND_EDDP: |
| card->dev->features |= NETIF_F_TSO | NETIF_F_SG; |
| break; |
| case QETH_LARGE_SEND_TSO: |
| if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){ |
| card->dev->features |= NETIF_F_TSO | NETIF_F_SG; |
| } else { |
| PRINT_WARN("TSO not supported on %s. " |
| "large_send set to 'no'.\n", |
| card->dev->name); |
| card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); |
| card->options.large_send = QETH_LARGE_SEND_NO; |
| rc = -EOPNOTSUPP; |
| } |
| break; |
| default: /* includes QETH_LARGE_SEND_NO */ |
| card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); |
| break; |
| } |
| |
| netif_wake_queue(card->dev); |
| return rc; |
| } |
| |
| /* |
| * softsetup card: init IPA stuff |
| */ |
| static int |
| qeth_softsetup_card(struct qeth_card *card) |
| { |
| int rc; |
| |
| QETH_DBF_TEXT(setup, 2, "softsetp"); |
| |
| if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){ |
| QETH_DBF_TEXT_(setup, 2, "1err%d", rc); |
| if (rc == 0xe080){ |
| PRINT_WARN("LAN on card %s if offline! " |
| "Continuing softsetup.\n", |
| CARD_BUS_ID(card)); |
| card->lan_online = 0; |
| } else |
| return rc; |
| } else |
| card->lan_online = 1; |
| if (card->options.layer2) { |
| card->dev->features |= |
| NETIF_F_HW_VLAN_FILTER | |
| NETIF_F_HW_VLAN_TX | |
| NETIF_F_HW_VLAN_RX; |
| card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST; |
| card->info.broadcast_capable=1; |
| if ((rc = qeth_layer2_initialize(card))) { |
| QETH_DBF_TEXT_(setup, 2, "L2err%d", rc); |
| return rc; |
| } |
| #ifdef CONFIG_QETH_VLAN |
| qeth_layer2_process_vlans(card, 0); |
| #endif |
| goto out; |
| } |
| if ((card->options.large_send == QETH_LARGE_SEND_EDDP) || |
| (card->options.large_send == QETH_LARGE_SEND_TSO)) |
| card->dev->features |= NETIF_F_TSO | NETIF_F_SG; |
| else |
| card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); |
| |
| if ((rc = qeth_setadapter_parms(card))) |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| if ((rc = qeth_start_ipassists(card))) |
| QETH_DBF_TEXT_(setup, 2, "3err%d", rc); |
| if ((rc = qeth_setrouting_v4(card))) |
| QETH_DBF_TEXT_(setup, 2, "4err%d", rc); |
| if ((rc = qeth_setrouting_v6(card))) |
| QETH_DBF_TEXT_(setup, 2, "5err%d", rc); |
| out: |
| netif_stop_queue(card->dev); |
| return 0; |
| } |
| |
| #ifdef CONFIG_QETH_IPV6 |
| static int |
| qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code == 0) |
| card->info.unique_id = *((__u16 *) |
| &cmd->data.create_destroy_addr.unique_id[6]); |
| else { |
| card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | |
| UNIQUE_ID_NOT_BY_CARD; |
| PRINT_WARN("couldn't get a unique id from the card on device " |
| "%s (result=x%x), using default id. ipv6 " |
| "autoconfig on other lpars may lead to duplicate " |
| "ip addresses. please use manually " |
| "configured ones.\n", |
| CARD_BUS_ID(card), cmd->hdr.return_code); |
| } |
| return 0; |
| } |
| #endif |
| |
| static int |
| qeth_put_unique_id(struct qeth_card *card) |
| { |
| |
| int rc = 0; |
| #ifdef CONFIG_QETH_IPV6 |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(trace,2,"puniqeid"); |
| |
| if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) == |
| UNIQUE_ID_NOT_BY_CARD) |
| return -1; |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR, |
| QETH_PROT_IPV6); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = |
| card->info.unique_id; |
| memcpy(&cmd->data.create_destroy_addr.unique_id[0], |
| card->dev->dev_addr, OSA_ADDR_LEN); |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| #else |
| card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | |
| UNIQUE_ID_NOT_BY_CARD; |
| #endif |
| return rc; |
| } |
| |
| /** |
| * Clear IP List |
| */ |
| static void |
| qeth_clear_ip_list(struct qeth_card *card, int clean, int recover) |
| { |
| struct qeth_ipaddr *addr, *tmp; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace,4,"clearip"); |
| spin_lock_irqsave(&card->ip_lock, flags); |
| /* clear todo list */ |
| list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){ |
| list_del(&addr->entry); |
| kfree(addr); |
| } |
| |
| while (!list_empty(&card->ip_list)) { |
| addr = list_entry(card->ip_list.next, |
| struct qeth_ipaddr, entry); |
| list_del_init(&addr->entry); |
| if (clean) { |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| qeth_deregister_addr_entry(card, addr); |
| spin_lock_irqsave(&card->ip_lock, flags); |
| } |
| if (!recover || addr->is_multicast) { |
| kfree(addr); |
| continue; |
| } |
| list_add_tail(&addr->entry, card->ip_tbd_list); |
| } |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| } |
| |
| static void |
| qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, |
| int clear_start_mask) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| card->thread_allowed_mask = threads; |
| if (clear_start_mask) |
| card->thread_start_mask &= threads; |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| wake_up(&card->wait_q); |
| } |
| |
| static inline int |
| qeth_threads_running(struct qeth_card *card, unsigned long threads) |
| { |
| unsigned long flags; |
| int rc = 0; |
| |
| spin_lock_irqsave(&card->thread_mask_lock, flags); |
| rc = (card->thread_running_mask & threads); |
| spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| return rc; |
| } |
| |
| static int |
| qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) |
| { |
| return wait_event_interruptible(card->wait_q, |
| qeth_threads_running(card, threads) == 0); |
| } |
| |
| static int |
| qeth_stop_card(struct qeth_card *card, int 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) { |
| 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: |
| card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
| card->info.mcl_level[0]]; |
| card->info.mcl_level[1] = (char) _ebcasc[(__u8) |
| card->info.mcl_level[1]]; |
| card->info.mcl_level[2] = (char) _ebcasc[(__u8) |
| card->info.mcl_level[2]]; |
| card->info.mcl_level[3] = (char) _ebcasc[(__u8) |
| card->info.mcl_level[3]]; |
| card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| break; |
| default: |
| memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); |
| } |
| if (card->info.portname_required) |
| qeth_print_status_with_portname(card); |
| else |
| qeth_print_status_no_portname(card); |
| } |
| |
| static int |
| qeth_register_netdev(struct qeth_card *card) |
| { |
| QETH_DBF_TEXT(setup, 3, "regnetd"); |
| if (card->dev->reg_state != NETREG_UNINITIALIZED) { |
| qeth_netdev_init(card->dev); |
| return 0; |
| } |
| /* sysfs magic */ |
| SET_NETDEV_DEV(card->dev, &card->gdev->dev); |
| return register_netdev(card->dev); |
| } |
| |
| static void |
| qeth_start_again(struct qeth_card *card, int recovery_mode) |
| { |
| QETH_DBF_TEXT(setup ,2, "startag"); |
| |
| if(recovery_mode) { |
| 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) { |
| if (card->info.type == QETH_CARD_TYPE_IQD) { |
| PRINT_ERR("Device %s does not support " \ |
| "layer 2 functionality. " \ |
| "Ignoring layer2 option.\n",CARD_BUS_ID(card)); |
| } |
| IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER, |
| "Routing options are"); |
| #ifdef CONFIG_QETH_IPV6 |
| IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER, |
| "Routing options are"); |
| #endif |
| IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING, |
| QETH_CHECKSUM_DEFAULT, |
| "Checksumming options are"); |
| IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS, |
| QETH_TR_BROADCAST_ALLRINGS, |
| "Broadcast mode options are"); |
| IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL, |
| QETH_TR_MACADDR_NONCANONICAL, |
| "Canonical MAC addr options are"); |
| IGNORE_PARAM_NEQ(fake_broadcast, 0, 0, |
| "Broadcast faking options are"); |
| IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN, |
| DEFAULT_ADD_HHLEN,"Option add_hhlen is"); |
| IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is"); |
| } |
| } |
| |
| |
| static int |
| __qeth_set_online(struct ccwgroup_device *gdev, 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; |
| } |
| |
| if (card->options.layer2) |
| qeth_make_parameters_consistent(card); |
| |
| if ((rc = qeth_hardsetup_card(card))){ |
| QETH_DBF_TEXT_(setup, 2, "2err%d", rc); |
| goto out_remove; |
| } |
| card->state = CARD_STATE_HARDSETUP; |
| |
| if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4))) |
| rc = qeth_get_unique_id(card); |
| |
| if (rc && card->options.layer2 == 0) { |
| QETH_DBF_TEXT_(setup, 2, "3err%d", rc); |
| goto out_remove; |
| } |
| qeth_print_status_message(card); |
| if ((rc = qeth_register_netdev(card))){ |
| QETH_DBF_TEXT_(setup, 2, "4err%d", rc); |
| goto out_remove; |
| } |
| if ((rc = qeth_softsetup_card(card))){ |
| QETH_DBF_TEXT_(setup, 2, "5err%d", rc); |
| goto out_remove; |
| } |
| card->state = CARD_STATE_SOFTSETUP; |
| |
| if ((rc = qeth_init_qdio_queues(card))){ |
| QETH_DBF_TEXT_(setup, 2, "6err%d", rc); |
| goto out_remove; |
| } |
| /*maybe it was set offline without ifconfig down |
| * we can also use this state for recovery purposes*/ |
| qeth_set_allowed_threads(card, 0xffffffff, 0); |
| if (recover_flag == CARD_STATE_RECOVER) |
| qeth_start_again(card, 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}, |
| {}, |
| }; |
| 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, |
| .destructor = NULL, |
| .solicit = NULL, |
| .error_report = NULL, |
| .output = dev_queue_xmit, |
| .connected_output = dev_queue_xmit, |
| .hh_output = dev_queue_xmit, |
| .queue_xmit = dev_queue_xmit |
| }; |
| |
| static int |
| qeth_arp_constructor(struct neighbour *neigh) |
| { |
| struct net_device *dev = neigh->dev; |
| struct in_device *in_dev; |
| struct neigh_parms *parms; |
| struct qeth_card *card; |
| |
| card = qeth_get_card_from_dev(dev); |
| if (card == NULL) |
| goto out; |
| if((card->options.layer2) || |
| (card->dev->hard_header == qeth_fake_header)) |
| goto out; |
| |
| rcu_read_lock(); |
| in_dev = rcu_dereference(__in_dev_get(dev)); |
| if (in_dev == NULL) { |
| rcu_read_unlock(); |
| return -EINVAL; |
| } |
| |
| parms = in_dev->arp_parms; |
| __neigh_parms_put(neigh->parms); |
| neigh->parms = neigh_parms_clone(parms); |
| rcu_read_unlock(); |
| |
| neigh->type = inet_addr_type(*(u32 *) neigh->primary_key); |
| neigh->nud_state = NUD_NOARP; |
| neigh->ops = arp_direct_ops; |
| neigh->output = neigh->ops->queue_xmit; |
| return 0; |
| out: |
| return qeth_old_arp_constructor(neigh); |
| } |
| #endif /*CONFIG_QETH_IPV6*/ |
| |
| /* |
| * IP address takeover related functions |
| */ |
| static void |
| qeth_clear_ipato_list(struct qeth_card *card) |
| { |
| struct qeth_ipato_entry *ipatoe, *tmp; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->ip_lock, flags); |
| list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { |
| list_del(&ipatoe->entry); |
| kfree(ipatoe); |
| } |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| } |
| |
| int |
| qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new) |
| { |
| struct qeth_ipato_entry *ipatoe; |
| unsigned long flags; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(trace, 2, "addipato"); |
| spin_lock_irqsave(&card->ip_lock, flags); |
| list_for_each_entry(ipatoe, &card->ipato.entries, entry){ |
| if (ipatoe->proto != new->proto) |
| continue; |
| if (!memcmp(ipatoe->addr, new->addr, |
| (ipatoe->proto == QETH_PROT_IPV4)? 4:16) && |
| (ipatoe->mask_bits == new->mask_bits)){ |
| PRINT_WARN("ipato entry already exists!\n"); |
| rc = -EEXIST; |
| break; |
| } |
| } |
| if (!rc) { |
| list_add_tail(&new->entry, &card->ipato.entries); |
| } |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| return rc; |
| } |
| |
| void |
| qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto, |
| u8 *addr, int mask_bits) |
| { |
| struct qeth_ipato_entry *ipatoe, *tmp; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace, 2, "delipato"); |
| spin_lock_irqsave(&card->ip_lock, flags); |
| list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){ |
| if (ipatoe->proto != proto) |
| continue; |
| if (!memcmp(ipatoe->addr, addr, |
| (proto == QETH_PROT_IPV4)? 4:16) && |
| (ipatoe->mask_bits == mask_bits)){ |
| list_del(&ipatoe->entry); |
| kfree(ipatoe); |
| } |
| } |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| } |
| |
| static inline void |
| qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len) |
| { |
| int i, j; |
| u8 octet; |
| |
| for (i = 0; i < len; ++i){ |
| octet = addr[i]; |
| for (j = 7; j >= 0; --j){ |
| bits[i*8 + j] = octet & 1; |
| octet >>= 1; |
| } |
| } |
| } |
| |
| static int |
| qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr) |
| { |
| struct qeth_ipato_entry *ipatoe; |
| u8 addr_bits[128] = {0, }; |
| u8 ipatoe_bits[128] = {0, }; |
| int rc = 0; |
| |
| if (!card->ipato.enabled) |
| return 0; |
| |
| qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits, |
| (addr->proto == QETH_PROT_IPV4)? 4:16); |
| list_for_each_entry(ipatoe, &card->ipato.entries, entry){ |
| if (addr->proto != ipatoe->proto) |
| continue; |
| qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits, |
| (ipatoe->proto==QETH_PROT_IPV4) ? |
| 4:16); |
| if (addr->proto == QETH_PROT_IPV4) |
| rc = !memcmp(addr_bits, ipatoe_bits, |
| min(32, ipatoe->mask_bits)); |
| else |
| rc = !memcmp(addr_bits, ipatoe_bits, |
| min(128, ipatoe->mask_bits)); |
| if (rc) |
| break; |
| } |
| /* invert? */ |
| if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4) |
| rc = !rc; |
| else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6) |
| rc = !rc; |
| |
| return rc; |
| } |
| |
| /* |
| * VIPA related functions |
| */ |
| int |
| qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto, |
| const u8 *addr) |
| { |
| struct qeth_ipaddr *ipaddr; |
| unsigned long flags; |
| int rc = 0; |
| |
| ipaddr = qeth_get_addr_buffer(proto); |
| if (ipaddr){ |
| if (proto == QETH_PROT_IPV4){ |
| QETH_DBF_TEXT(trace, 2, "addvipa4"); |
| memcpy(&ipaddr->u.a4.addr, addr, 4); |
| ipaddr->u.a4.mask = 0; |
| #ifdef CONFIG_QETH_IPV6 |
| } else if (proto == QETH_PROT_IPV6){ |
| QETH_DBF_TEXT(trace, 2, "addvipa6"); |
| memcpy(&ipaddr->u.a6.addr, addr, 16); |
| ipaddr->u.a6.pfxlen = 0; |
| #endif |
| } |
| ipaddr->type = QETH_IP_TYPE_VIPA; |
| ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG; |
| ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG; |
| } else |
| return -ENOMEM; |
| spin_lock_irqsave(&card->ip_lock, flags); |
| if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) || |
| __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0)) |
| rc = -EEXIST; |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| if (rc){ |
| PRINT_WARN("Cannot add VIPA. Address already exists!\n"); |
| return rc; |
| } |
| if (!qeth_add_ip(card, ipaddr)) |
| kfree(ipaddr); |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| return rc; |
| } |
| |
| void |
| qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto, |
| const u8 *addr) |
| { |
| struct qeth_ipaddr *ipaddr; |
| |
| ipaddr = qeth_get_addr_buffer(proto); |
| if (ipaddr){ |
| if (proto == QETH_PROT_IPV4){ |
| QETH_DBF_TEXT(trace, 2, "delvipa4"); |
| memcpy(&ipaddr->u.a4.addr, addr, 4); |
| ipaddr->u.a4.mask = 0; |
| #ifdef CONFIG_QETH_IPV6 |
| } else if (proto == QETH_PROT_IPV6){ |
| QETH_DBF_TEXT(trace, 2, "delvipa6"); |
| memcpy(&ipaddr->u.a6.addr, addr, 16); |
| ipaddr->u.a6.pfxlen = 0; |
| #endif |
| } |
| ipaddr->type = QETH_IP_TYPE_VIPA; |
| } else |
| return; |
| if (!qeth_delete_ip(card, ipaddr)) |
| kfree(ipaddr); |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| } |
| |
| /* |
| * proxy ARP related functions |
| */ |
| int |
| qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto, |
| const u8 *addr) |
| { |
| struct qeth_ipaddr *ipaddr; |
| unsigned long flags; |
| int rc = 0; |
| |
| ipaddr = qeth_get_addr_buffer(proto); |
| if (ipaddr){ |
| if (proto == QETH_PROT_IPV4){ |
| QETH_DBF_TEXT(trace, 2, "addrxip4"); |
| memcpy(&ipaddr->u.a4.addr, addr, 4); |
| ipaddr->u.a4.mask = 0; |
| #ifdef CONFIG_QETH_IPV6 |
| } else if (proto == QETH_PROT_IPV6){ |
| QETH_DBF_TEXT(trace, 2, "addrxip6"); |
| memcpy(&ipaddr->u.a6.addr, addr, 16); |
| ipaddr->u.a6.pfxlen = 0; |
| #endif |
| } |
| ipaddr->type = QETH_IP_TYPE_RXIP; |
| ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG; |
| ipaddr->del_flags = 0; |
| } else |
| return -ENOMEM; |
| spin_lock_irqsave(&card->ip_lock, flags); |
| if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) || |
| __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0)) |
| rc = -EEXIST; |
| spin_unlock_irqrestore(&card->ip_lock, flags); |
| if (rc){ |
| PRINT_WARN("Cannot add RXIP. Address already exists!\n"); |
| return rc; |
| } |
| if (!qeth_add_ip(card, ipaddr)) |
| kfree(ipaddr); |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| return 0; |
| } |
| |
| void |
| qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto, |
| const u8 *addr) |
| { |
| struct qeth_ipaddr *ipaddr; |
| |
| ipaddr = qeth_get_addr_buffer(proto); |
| if (ipaddr){ |
| if (proto == QETH_PROT_IPV4){ |
| QETH_DBF_TEXT(trace, 2, "addrxip4"); |
| memcpy(&ipaddr->u.a4.addr, addr, 4); |
| ipaddr->u.a4.mask = 0; |
| #ifdef CONFIG_QETH_IPV6 |
| } else if (proto == QETH_PROT_IPV6){ |
| QETH_DBF_TEXT(trace, 2, "addrxip6"); |
| memcpy(&ipaddr->u.a6.addr, addr, 16); |
| ipaddr->u.a6.pfxlen = 0; |
| #endif |
| } |
| ipaddr->type = QETH_IP_TYPE_RXIP; |
| } else |
| return; |
| if (!qeth_delete_ip(card, ipaddr)) |
| kfree(ipaddr); |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| } |
| |
| /** |
| * IP event handler |
| */ |
| static int |
| qeth_ip_event(struct notifier_block *this, |
| unsigned long event,void *ptr) |
| { |
| struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; |
| struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev; |
| struct qeth_ipaddr *addr; |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace,3,"ipevent"); |
| card = qeth_get_card_from_dev(dev); |
| if (!card) |
| return NOTIFY_DONE; |
| if (card->options.layer2) |
| return NOTIFY_DONE; |
| |
| addr = qeth_get_addr_buffer(QETH_PROT_IPV4); |
| if (addr != NULL) { |
| addr->u.a4.addr = ifa->ifa_address; |
| addr->u.a4.mask = ifa->ifa_mask; |
| addr->type = QETH_IP_TYPE_NORMAL; |
| } else |
| goto out; |
| |
| switch(event) { |
| case NETDEV_UP: |
| if (!qeth_add_ip(card, addr)) |
| kfree(addr); |
| break; |
| case NETDEV_DOWN: |
| if (!qeth_delete_ip(card, addr)) |
| kfree(addr); |
| break; |
| default: |
| break; |
| } |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| out: |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block qeth_ip_notifier = { |
| qeth_ip_event, |
| 0 |
| }; |
| |
| #ifdef CONFIG_QETH_IPV6 |
| /** |
| * IPv6 event handler |
| */ |
| static int |
| qeth_ip6_event(struct notifier_block *this, |
| unsigned long event,void *ptr) |
| { |
| |
| struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; |
| struct net_device *dev = (struct net_device *)ifa->idev->dev; |
| struct qeth_ipaddr *addr; |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(trace,3,"ip6event"); |
| |
| card = qeth_get_card_from_dev(dev); |
| if (!card) |
| return NOTIFY_DONE; |
| if (!qeth_is_supported(card, IPA_IPV6)) |
| return NOTIFY_DONE; |
| |
| addr = qeth_get_addr_buffer(QETH_PROT_IPV6); |
| if (addr != NULL) { |
| memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr)); |
| addr->u.a6.pfxlen = ifa->prefix_len; |
| addr->type = QETH_IP_TYPE_NORMAL; |
| } else |
| goto out; |
| |
| switch(event) { |
| case NETDEV_UP: |
| if (!qeth_add_ip(card, addr)) |
| kfree(addr); |
| break; |
| case NETDEV_DOWN: |
| if (!qeth_delete_ip(card, addr)) |
| kfree(addr); |
| break; |
| default: |
| break; |
| } |
| if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) |
| schedule_work(&card->kernel_thread_starter); |
| out: |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block qeth_ip6_notifier = { |
| qeth_ip6_event, |
| 0 |
| }; |
| #endif |
| |
| static int |
| qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr) |
| { |
| |
| struct device *entry; |
| struct qeth_card *card; |
| |
| down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem); |
| list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices, |
| driver_list) { |
| card = (struct qeth_card *) entry->driver_data; |
| qeth_clear_ip_list(card, 0, 0); |
| qeth_qdio_clear_card(card, 0); |
| } |
| up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem); |
| return NOTIFY_DONE; |
| } |
| |
| |
| static struct notifier_block qeth_reboot_notifier = { |
| qeth_reboot_event, |
| 0 |
| }; |
| |
| static int |
| qeth_register_notifiers(void) |
| { |
| int r; |
| |
| QETH_DBF_TEXT(trace,5,"regnotif"); |
| if ((r = register_reboot_notifier(&qeth_reboot_notifier))) |
| return r; |
| if ((r = register_inetaddr_notifier(&qeth_ip_notifier))) |
| goto out_reboot; |
| #ifdef CONFIG_QETH_IPV6 |
| if ((r = register_inet6addr_notifier(&qeth_ip6_notifier))) |
| goto out_ipv4; |
| #endif |
| return 0; |
| |
| #ifdef CONFIG_QETH_IPV6 |
| out_ipv4: |
| unregister_inetaddr_notifier(&qeth_ip_notifier); |
| #endif |
| out_reboot: |
| unregister_reboot_notifier(&qeth_reboot_notifier); |
| return r; |
| } |
| |
| /** |
| * unregister all event notifiers |
| */ |
| static void |
| qeth_unregister_notifiers(void) |
| { |
| |
| QETH_DBF_TEXT(trace,5,"unregnot"); |
| BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier)); |
| BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier)); |
| #ifdef CONFIG_QETH_IPV6 |
| BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier)); |
| #endif /* QETH_IPV6 */ |
| |
| } |
| |
| #ifdef CONFIG_QETH_IPV6 |
| static int |
| qeth_ipv6_init(void) |
| { |
| qeth_old_arp_constructor = arp_tbl.constructor; |
| write_lock(&arp_tbl.lock); |
| arp_tbl.constructor = qeth_arp_constructor; |
| write_unlock(&arp_tbl.lock); |
| |
| arp_direct_ops = (struct neigh_ops*) |
| kmalloc(sizeof(struct neigh_ops), GFP_KERNEL); |
| if (!arp_direct_ops) |
| return -ENOMEM; |
| |
| memcpy(arp_direct_ops, &arp_direct_ops_template, |
| sizeof(struct neigh_ops)); |
| |
| return 0; |
| } |
| |
| static void |
| qeth_ipv6_uninit(void) |
| { |
| write_lock(&arp_tbl.lock); |
| arp_tbl.constructor = qeth_old_arp_constructor; |
| write_unlock(&arp_tbl.lock); |
| kfree(arp_direct_ops); |
| } |
| #endif /* CONFIG_QETH_IPV6 */ |
| |
| static void |
| qeth_sysfs_unregister(void) |
| { |
| qeth_remove_driver_attributes(); |
| ccw_driver_unregister(&qeth_ccw_driver); |
| ccwgroup_driver_unregister(&qeth_ccwgroup_driver); |
| s390_root_dev_unregister(qeth_root_dev); |
| } |
| /** |
| * register qeth at sysfs |
| */ |
| static int |
| qeth_sysfs_register(void) |
| { |
| int rc=0; |
| |
| rc = ccwgroup_driver_register(&qeth_ccwgroup_driver); |
| if (rc) |
| return rc; |
| rc = ccw_driver_register(&qeth_ccw_driver); |
| if (rc) |
| return rc; |
| rc = qeth_create_driver_attributes(); |
| if (rc) |
| return rc; |
| qeth_root_dev = s390_root_dev_register("qeth"); |
| if (IS_ERR(qeth_root_dev)) { |
| rc = PTR_ERR(qeth_root_dev); |
| return rc; |
| } |
| return 0; |
| } |
| |
| /*** |
| * init function |
| */ |
| static int __init |
| qeth_init(void) |
| { |
| int rc=0; |
| |
| qeth_eyecatcher(); |
| PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n", |
| version, VERSION_QETH_C, VERSION_QETH_H, |
| VERSION_QETH_MPC_H, VERSION_QETH_MPC_C, |
| VERSION_QETH_FS_H, VERSION_QETH_PROC_C, |
| VERSION_QETH_SYS_C, QETH_VERSION_IPV6, |
| QETH_VERSION_VLAN); |
| |
| INIT_LIST_HEAD(&qeth_card_list.list); |
| INIT_LIST_HEAD(&qeth_notify_list); |
| spin_lock_init(&qeth_notify_lock); |
| rwlock_init(&qeth_card_list.rwlock); |
| |
| if (qeth_register_dbf_views()) |
| goto out_err; |
| if (qeth_sysfs_register()) |
| goto out_sysfs; |
| |
| #ifdef CONFIG_QETH_IPV6 |
| if (qeth_ipv6_init()) { |
| PRINT_ERR("Out of memory during ipv6 init.\n"); |
| goto out_sysfs; |
| } |
| #endif /* QETH_IPV6 */ |
| if (qeth_register_notifiers()) |
| goto out_ipv6; |
| if (qeth_create_procfs_entries()) |
| goto out_notifiers; |
| |
| return rc; |
| |
| out_notifiers: |
| qeth_unregister_notifiers(); |
| out_ipv6: |
| #ifdef CONFIG_QETH_IPV6 |
| qeth_ipv6_uninit(); |
| #endif /* QETH_IPV6 */ |
| out_sysfs: |
| qeth_sysfs_unregister(); |
| qeth_unregister_dbf_views(); |
| out_err: |
| PRINT_ERR("Initialization failed"); |
| return rc; |
| } |
| |
| static void |
| __exit qeth_exit(void) |
| { |
| struct qeth_card *card, *tmp; |
| unsigned long flags; |
| |
| QETH_DBF_TEXT(trace,1, "cleanup."); |
| |
| /* |
| * Weed would not need to clean up our devices here, because the |
| * common device layer calls qeth_remove_device for each device |
| * as soon as we unregister our driver (done in qeth_sysfs_unregister). |
| * But we do cleanup here so we can do a "soft" shutdown of our cards. |
| * qeth_remove_device called by the common device layer would otherwise |
| * do a "hard" shutdown (card->use_hard_stop is set to one in |
| * qeth_remove_device). |
| */ |
| again: |
| read_lock_irqsave(&qeth_card_list.rwlock, flags); |
| list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){ |
| read_unlock_irqrestore(&qeth_card_list.rwlock, flags); |
| qeth_set_offline(card->gdev); |
| qeth_remove_device(card->gdev); |
| goto again; |
| } |
| read_unlock_irqrestore(&qeth_card_list.rwlock, flags); |
| #ifdef CONFIG_QETH_IPV6 |
| qeth_ipv6_uninit(); |
| #endif |
| qeth_unregister_notifiers(); |
| qeth_remove_procfs_entries(); |
| qeth_sysfs_unregister(); |
| qeth_unregister_dbf_views(); |
| printk("qeth: removed\n"); |
| } |
| |
| EXPORT_SYMBOL(qeth_eyecatcher); |
| module_init(qeth_init); |
| module_exit(qeth_exit); |
| MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>"); |
| MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \ |
| "Copyright 2000,2003 IBM Corporation\n"); |
| |
| MODULE_LICENSE("GPL"); |