/* * drivers/s390/net/qeth_core_main.c * * Copyright IBM Corp. 2007, 2009 * Author(s): Utz Bacher , * Frank Pavlic , * Thomas Spatzier , * Frank Blaschka */ #define KMSG_COMPONENT "qeth" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include #include #include #include #include #include #include #include #include #include #include #include #include "qeth_core.h" struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ /* N P A M L V H */ [QETH_DBF_SETUP] = {"qeth_setup", 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 128, 3, &debug_sprintf_view, NULL}, [QETH_DBF_CTRL] = {"qeth_control", 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, }; EXPORT_SYMBOL_GPL(qeth_dbf); struct qeth_card_list_struct qeth_core_card_list; EXPORT_SYMBOL_GPL(qeth_core_card_list); struct kmem_cache *qeth_core_header_cache; EXPORT_SYMBOL_GPL(qeth_core_header_cache); static struct device *qeth_core_root_dev; static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY; static struct lock_class_key qdio_out_skb_queue_key; static void qeth_send_control_data_cb(struct qeth_channel *, struct qeth_cmd_buffer *); static int qeth_issue_next_read(struct qeth_card *); static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); static void qeth_free_buffer_pool(struct qeth_card *); static int qeth_qdio_establish(struct qeth_card *); static inline const char *qeth_get_cardname(struct qeth_card *card) { if (card->info.guestlan) { switch (card->info.type) { case QETH_CARD_TYPE_OSD: return " Guest LAN QDIO"; case QETH_CARD_TYPE_IQD: return " Guest LAN Hiper"; case QETH_CARD_TYPE_OSM: return " Guest LAN QDIO - OSM"; case QETH_CARD_TYPE_OSX: return " Guest LAN QDIO - OSX"; default: return " unknown"; } } else { switch (card->info.type) { case QETH_CARD_TYPE_OSD: return " OSD Express"; case QETH_CARD_TYPE_IQD: return " HiperSockets"; case QETH_CARD_TYPE_OSN: return " OSN QDIO"; case QETH_CARD_TYPE_OSM: return " OSM QDIO"; case QETH_CARD_TYPE_OSX: return " OSX QDIO"; default: return " unknown"; } } return " n/a"; } /* max length to be returned: 14 */ const char *qeth_get_cardname_short(struct qeth_card *card) { if (card->info.guestlan) { switch (card->info.type) { case QETH_CARD_TYPE_OSD: return "GuestLAN QDIO"; case QETH_CARD_TYPE_IQD: return "GuestLAN Hiper"; case QETH_CARD_TYPE_OSM: return "GuestLAN OSM"; case QETH_CARD_TYPE_OSX: return "GuestLAN OSX"; default: return "unknown"; } } else { switch (card->info.type) { case QETH_CARD_TYPE_OSD: switch (card->info.link_type) { case QETH_LINK_TYPE_FAST_ETH: return "OSD_100"; case QETH_LINK_TYPE_HSTR: return "HSTR"; case QETH_LINK_TYPE_GBIT_ETH: return "OSD_1000"; case QETH_LINK_TYPE_10GBIT_ETH: return "OSD_10GIG"; case QETH_LINK_TYPE_LANE_ETH100: return "OSD_FE_LANE"; case QETH_LINK_TYPE_LANE_TR: return "OSD_TR_LANE"; case QETH_LINK_TYPE_LANE_ETH1000: return "OSD_GbE_LANE"; case QETH_LINK_TYPE_LANE: return "OSD_ATM_LANE"; default: return "OSD_Express"; } case QETH_CARD_TYPE_IQD: return "HiperSockets"; case QETH_CARD_TYPE_OSN: return "OSN"; case QETH_CARD_TYPE_OSM: return "OSM_1000"; case QETH_CARD_TYPE_OSX: return "OSX_10GIG"; default: return "unknown"; } } return "n/a"; } 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); } EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); 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; } EXPORT_SYMBOL_GPL(qeth_threads_running); 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); } EXPORT_SYMBOL_GPL(qeth_wait_for_threads); void qeth_clear_working_pool_list(struct qeth_card *card) { struct qeth_buffer_pool_entry *pool_entry, *tmp; QETH_CARD_TEXT(card, 5, "clwrklst"); list_for_each_entry_safe(pool_entry, tmp, &card->qdio.in_buf_pool.entry_list, list){ list_del(&pool_entry->list); } } EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); static int qeth_alloc_buffer_pool(struct qeth_card *card) { struct qeth_buffer_pool_entry *pool_entry; void *ptr; int i, j; QETH_CARD_TEXT(card, 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_CARD_TEXT(card, 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); } EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); static int qeth_issue_next_read(struct qeth_card *card) { int rc; struct qeth_cmd_buffer *iob; QETH_CARD_TEXT(card, 5, "issnxrd"); if (card->read.state != CH_STATE_UP) return -EIO; iob = qeth_get_buffer(&card->read); if (!iob) { dev_warn(&card->gdev->dev, "The qeth device driver " "failed to recover an error on the device\n"); QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " "available\n", dev_name(&card->gdev->dev)); return -ENOMEM; } qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); QETH_CARD_TEXT(card, 6, "noirqpnd"); rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, (addr_t) iob, 0, 0); if (rc) { QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " "rc=%i\n", dev_name(&card->gdev->dev), rc); atomic_set(&card->read.irq_pending, 0); card->read_or_write_problem = 1; qeth_schedule_recovery(card); wake_up(&card->wait_q); } return rc; } static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) { struct qeth_reply *reply; reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); if (reply) { atomic_set(&reply->refcnt, 1); atomic_set(&reply->received, 0); reply->card = card; }; return reply; } static void qeth_get_reply(struct qeth_reply *reply) { WARN_ON(atomic_read(&reply->refcnt) <= 0); atomic_inc(&reply->refcnt); } static void qeth_put_reply(struct qeth_reply *reply) { WARN_ON(atomic_read(&reply->refcnt) <= 0); if (atomic_dec_and_test(&reply->refcnt)) kfree(reply); } static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, struct qeth_card *card) { char *ipa_name; int com = cmd->hdr.command; ipa_name = qeth_get_ipa_cmd_name(com); if (rc) QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com, QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc)); else QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n", ipa_name, com, QETH_CARD_IFNAME(card)); } 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_CARD_TEXT(card, 5, "chkipad"); if (IS_IPA(iob->data)) { cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); if (IS_IPA_REPLY(cmd)) { if (cmd->hdr.command != IPA_CMD_SETCCID && cmd->hdr.command != IPA_CMD_DELCCID && cmd->hdr.command != IPA_CMD_MODCCID && cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); return cmd; } else { switch (cmd->hdr.command) { case IPA_CMD_STOPLAN: dev_warn(&card->gdev->dev, "The link for interface %s on CHPID" " 0x%X failed\n", QETH_CARD_IFNAME(card), card->info.chpid); card->lan_online = 0; if (card->dev && netif_carrier_ok(card->dev)) netif_carrier_off(card->dev); return NULL; case IPA_CMD_STARTLAN: dev_info(&card->gdev->dev, "The link for %s on CHPID 0x%X has" " been restored\n", QETH_CARD_IFNAME(card), card->info.chpid); netif_carrier_on(card->dev); card->lan_online = 1; qeth_schedule_recovery(card); return NULL; case IPA_CMD_MODCCID: return cmd; case IPA_CMD_REGISTER_LOCAL_ADDR: QETH_CARD_TEXT(card, 3, "irla"); break; case IPA_CMD_UNREGISTER_LOCAL_ADDR: QETH_CARD_TEXT(card, 3, "urla"); break; default: QETH_DBF_MESSAGE(2, "Received data is IPA " "but not a reply!\n"); break; } } } return cmd; } void qeth_clear_ipacmd_list(struct qeth_card *card) { struct qeth_reply *reply, *r; unsigned long flags; QETH_CARD_TEXT(card, 4, "clipalst"); spin_lock_irqsave(&card->lock, flags); list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { qeth_get_reply(reply); reply->rc = -EIO; atomic_inc(&reply->received); list_del_init(&reply->list); wake_up(&reply->wait_q); qeth_put_reply(reply); } spin_unlock_irqrestore(&card->lock, flags); atomic_set(&card->write.irq_pending, 0); } EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); static int qeth_check_idx_response(struct qeth_card *card, unsigned char *buffer) { if (!buffer) return 0; QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); if ((buffer[2] & 0xc0) == 0xc0) { QETH_DBF_MESSAGE(2, "received an IDX TERMINATE " "with cause code 0x%02x%s\n", buffer[4], ((buffer[4] == 0x22) ? " -- try another portname" : "")); QETH_CARD_TEXT(card, 2, "ckidxres"); QETH_CARD_TEXT(card, 2, " idxterm"); QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); if (buffer[4] == 0xf6) { dev_err(&card->gdev->dev, "The qeth device is not configured " "for the OSI layer required by z/VM\n"); return -EPERM; } return -EIO; } return 0; } static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, __u32 len) { struct qeth_card *card; card = CARD_FROM_CDEV(channel->ccwdev); QETH_CARD_TEXT(card, 4, "setupccw"); 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); } static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) { __u8 index; QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 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; } void qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) { unsigned long flags; QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 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); } EXPORT_SYMBOL_GPL(qeth_release_buffer); 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; } 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; } EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); void qeth_clear_cmd_buffers(struct qeth_channel *channel) { int cnt; for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) qeth_release_buffer(channel, &channel->iob[cnt]); channel->buf_no = 0; channel->io_buf_no = 0; } EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); 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; int rc = 0; card = CARD_FROM_CDEV(channel->ccwdev); QETH_CARD_TEXT(card, 4, "sndctlcb"); rc = qeth_check_idx_response(card, iob->data); switch (rc) { case 0: break; case -EIO: qeth_clear_ipacmd_list(card); qeth_schedule_recovery(card); /* fall through */ default: goto out; } cmd = qeth_check_ipa_data(card, iob); if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) goto out; /*in case of OSN : check if cmd is set */ if (card->info.type == QETH_CARD_TYPE_OSN && cmd && cmd->hdr.command != IPA_CMD_STARTLAN && card->osn_info.assist_cb != NULL) { card->osn_info.assist_cb(card->dev, cmd); goto out; } spin_lock_irqsave(&card->lock, flags); list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || ((cmd) && (reply->seqno == cmd->hdr.seqno))) { qeth_get_reply(reply); list_del_init(&reply->list); spin_unlock_irqrestore(&card->lock, flags); keep_reply = 0; if (reply->callback != NULL) { if (cmd) { reply->offset = (__u16)((char *)cmd - (char *)iob->data); keep_reply = reply->callback(card, reply, (unsigned long)cmd); } else keep_reply = reply->callback(card, reply, (unsigned long)iob); } if (cmd) reply->rc = (u16) cmd->hdr.return_code; else if (iob->rc) reply->rc = iob->rc; if (keep_reply) { spin_lock_irqsave(&card->lock, flags); list_add_tail(&reply->list, &card->cmd_waiter_list); spin_unlock_irqrestore(&card->lock, flags); } else { atomic_inc(&reply->received); wake_up(&reply->wait_q); } qeth_put_reply(reply); goto out; } } spin_unlock_irqrestore(&card->lock, flags); out: memcpy(&card->seqno.pdu_hdr_ack, QETH_PDU_HEADER_SEQ_NO(iob->data), QETH_SEQ_NO_LENGTH); qeth_release_buffer(channel, iob); } static 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 = 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); return 0; } static int qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread) { unsigned long flags; spin_lock_irqsave(&card->thread_mask_lock, flags); if (!(card->thread_allowed_mask & thread) || (card->thread_start_mask & thread)) { spin_unlock_irqrestore(&card->thread_mask_lock, flags); return -EPERM; } card->thread_start_mask |= thread; spin_unlock_irqrestore(&card->thread_mask_lock, flags); return 0; } 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); } EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); 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); } EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) { unsigned long flags; int rc = 0; spin_lock_irqsave(&card->thread_mask_lock, flags); if (card->thread_start_mask & thread) { if ((card->thread_allowed_mask & thread) && !(card->thread_running_mask & thread)) { rc = 1; card->thread_start_mask &= ~thread; card->thread_running_mask |= thread; } else rc = -EPERM; } spin_unlock_irqrestore(&card->thread_mask_lock, flags); return rc; } 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; } EXPORT_SYMBOL_GPL(qeth_do_run_thread); void qeth_schedule_recovery(struct qeth_card *card) { QETH_CARD_TEXT(card, 2, "startrec"); if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) schedule_work(&card->kernel_thread_starter); } EXPORT_SYMBOL_GPL(qeth_schedule_recovery); static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) { int dstat, cstat; char *sense; struct qeth_card *card; sense = (char *) irb->ecw; cstat = irb->scsw.cmd.cstat; dstat = irb->scsw.cmd.dstat; card = CARD_FROM_CDEV(cdev); 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_CARD_TEXT(card, 2, "CGENCHK"); dev_warn(&cdev->dev, "The qeth device driver " "failed to recover an error on the device\n"); QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", dev_name(&cdev->dev), dstat, cstat); print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 16, 1, irb, 64, 1); return 1; } if (dstat & DEV_STAT_UNIT_CHECK) { if (sense[SENSE_RESETTING_EVENT_BYTE] & SENSE_RESETTING_EVENT_FLAG) { QETH_CARD_TEXT(card, 2, "REVIND"); return 1; } if (sense[SENSE_COMMAND_REJECT_BYTE] & SENSE_COMMAND_REJECT_FLAG) { QETH_CARD_TEXT(card, 2, "CMDREJi"); return 1; } if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { QETH_CARD_TEXT(card, 2, "AFFE"); return 1; } if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { QETH_CARD_TEXT(card, 2, "ZEROSEN"); return 0; } QETH_CARD_TEXT(card, 2, "DGENCHK"); return 1; } return 0; } static long __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) { struct qeth_card *card; card = CARD_FROM_CDEV(cdev); if (!IS_ERR(irb)) return 0; switch (PTR_ERR(irb)) { case -EIO: QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", dev_name(&cdev->dev)); QETH_CARD_TEXT(card, 2, "ckirberr"); QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); break; case -ETIMEDOUT: dev_warn(&cdev->dev, "A hardware operation timed out" " on the device\n"); QETH_CARD_TEXT(card, 2, "ckirberr"); QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); if (intparm == QETH_RCD_PARM) { if (card && (card->data.ccwdev == cdev)) { card->data.state = CH_STATE_DOWN; wake_up(&card->wait_q); } } break; default: QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", dev_name(&cdev->dev), PTR_ERR(irb)); QETH_CARD_TEXT(card, 2, "ckirberr"); QETH_CARD_TEXT(card, 2, " rc???"); } return PTR_ERR(irb); } 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; struct qeth_cmd_buffer *iob; __u8 index; if (__qeth_check_irb_error(cdev, intparm, irb)) return; cstat = irb->scsw.cmd.cstat; dstat = irb->scsw.cmd.dstat; card = CARD_FROM_CDEV(cdev); if (!card) return; QETH_CARD_TEXT(card, 5, "irq"); if (card->read.ccwdev == cdev) { channel = &card->read; QETH_CARD_TEXT(card, 5, "read"); } else if (card->write.ccwdev == cdev) { channel = &card->write; QETH_CARD_TEXT(card, 5, "write"); } else { channel = &card->data; QETH_CARD_TEXT(card, 5, "data"); } atomic_set(&channel->irq_pending, 0); if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) channel->state = CH_STATE_STOPPED; if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) channel->state = CH_STATE_HALTED; /*let's wake up immediately on data channel*/ if ((channel == &card->data) && (intparm != 0) && (intparm != QETH_RCD_PARM)) goto out; if (intparm == QETH_CLEAR_CHANNEL_PARM) { QETH_CARD_TEXT(card, 6, "clrchpar"); /* we don't have to handle this further */ intparm = 0; } if (intparm == QETH_HALT_CHANNEL_PARM) { QETH_CARD_TEXT(card, 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) { dev_warn(&channel->ccwdev->dev, "The qeth device driver failed to recover " "an error on the device\n"); QETH_DBF_MESSAGE(2, "%s sense data available. cstat " "0x%X dstat 0x%X\n", dev_name(&channel->ccwdev->dev), cstat, dstat); print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); print_hex_dump(KERN_WARNING, "qeth: sense data ", DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); } if (intparm == QETH_RCD_PARM) { channel->state = CH_STATE_DOWN; goto out; } rc = qeth_get_problem(cdev, irb); if (rc) { qeth_clear_ipacmd_list(card); qeth_schedule_recovery(card); goto out; } } if (intparm == QETH_RCD_PARM) { channel->state = CH_STATE_RCD_DONE; goto out; } if (intparm) { buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); buffer->state = BUF_STATE_PROCESSED; } if (channel == &card->data) return; if (channel == &card->read && channel->state == CH_STATE_UP) qeth_issue_next_read(card); iob = channel->iob; index = channel->buf_no; 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; out: wake_up(&card->wait_q); return; } static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, struct qeth_qdio_out_buffer *buf) { int i; struct sk_buff *skb; /* is PCI flag set on buffer? */ if (buf->buffer->element[0].flags & 0x40) atomic_dec(&queue->set_pci_flags_count); skb = skb_dequeue(&buf->skb_list); while (skb) { atomic_dec(&skb->users); dev_kfree_skb_any(skb); skb = skb_dequeue(&buf->skb_list); } for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { if (buf->buffer->element[i].addr && buf->is_header[i]) kmem_cache_free(qeth_core_header_cache, buf->buffer->element[i].addr); buf->is_header[i] = 0; buf->buffer->element[i].length = 0; buf->buffer->element[i].addr = NULL; buf->buffer->element[i].flags = 0; } buf->buffer->element[15].flags = 0; buf->next_element_to_fill = 0; atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); } void qeth_clear_qdio_buffers(struct qeth_card *card) { int i, j; QETH_CARD_TEXT(card, 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]); } } EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); static void qeth_free_buffer_pool(struct qeth_card *card) { struct qeth_buffer_pool_entry *pool_entry, *tmp; int i = 0; 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 void qeth_free_qdio_buffers(struct qeth_card *card) { int i, j; if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == QETH_QDIO_UNINITIALIZED) return; kfree(card->qdio.in_q); card->qdio.in_q = NULL; /* inbound buffer pool */ qeth_free_buffer_pool(card); /* free outbound qdio_qs */ if (card->qdio.out_qs) { for (i = 0; i < card->qdio.no_out_queues; ++i) { for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) qeth_clear_output_buffer(card->qdio.out_qs[i], &card->qdio.out_qs[i]->bufs[j]); kfree(card->qdio.out_qs[i]); } kfree(card->qdio.out_qs); card->qdio.out_qs = NULL; } } static void qeth_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); } static void qeth_get_channel_path_desc(struct qeth_card *card) { 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, "chp_desc"); 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 */ if ((chp_dsc->chpp & 0x02) == 0x02) card->qdio.no_out_queues = 1; card->info.func_level = 0x4100 + chp_dsc->desc; kfree(chp_dsc); } if (card->qdio.no_out_queues == 1) { card->qdio.default_out_queue = 0; dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); } QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); return; } static void qeth_init_qdio_info(struct qeth_card *card) { QETH_DBF_TEXT(SETUP, 4, "intqdinf"); atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); /* inbound */ card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); } static void qeth_set_intial_options(struct qeth_card *card) { card->options.route4.type = NO_ROUTER; card->options.route6.type = NO_ROUTER; 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.performance_stats = 0; card->options.rx_sg_cb = QETH_RX_SG_CB; card->options.isolation = ISOLATION_MODE_NONE; } 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_CARD_TEXT_(card, 4, " %02x%02x%02x", (u8) card->thread_start_mask, (u8) card->thread_allowed_mask, (u8) card->thread_running_mask); rc = (card->thread_start_mask & thread); spin_unlock_irqrestore(&card->thread_mask_lock, flags); return rc; } static void qeth_start_kernel_thread(struct work_struct *work) { struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter); QETH_CARD_TEXT(card , 2, "strthrd"); if (card->read.state != CH_STATE_UP && card->write.state != CH_STATE_UP) return; if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) kthread_run(card->discipline.recover, (void *) card, "qeth_recover"); } 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->read_or_write_problem = 0; card->dev = NULL; spin_lock_init(&card->vlanlock); spin_lock_init(&card->mclock); card->vlangrp = NULL; spin_lock_init(&card->lock); spin_lock_init(&card->ip_lock); spin_lock_init(&card->thread_mask_lock); mutex_init(&card->conf_mutex); mutex_init(&card->discipline_mutex); card->thread_start_mask = 0; card->thread_allowed_mask = 0; card->thread_running_mask = 0; INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); INIT_LIST_HEAD(&card->ip_list); 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 void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) { struct qeth_card *card = container_of(slr, struct qeth_card, qeth_service_level); if (card->info.mcl_level[0]) seq_printf(m, "qeth: %s firmware level %s\n", CARD_BUS_ID(card), card->info.mcl_level); } static struct qeth_card *qeth_alloc_card(void) { struct qeth_card *card; QETH_DBF_TEXT(SETUP, 2, "alloccrd"); card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); if (!card) goto out; QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); if (!card->ip_tbd_list) { QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); goto out_card; } if (qeth_setup_channel(&card->read)) goto out_ip; if (qeth_setup_channel(&card->write)) goto out_channel; card->options.layer2 = -1; card->qeth_service_level.seq_print = qeth_core_sl_print; register_service_level(&card->qeth_service_level); return card; out_channel: qeth_clean_channel(&card->read); out_ip: kfree(card->ip_tbd_list); out_card: kfree(card); out: return NULL; } static int qeth_determine_card_type(struct qeth_card *card) { int i = 0; QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; while (known_devices[i][QETH_DEV_MODEL_IND]) { if ((CARD_RDEV(card)->id.dev_type == known_devices[i][QETH_DEV_TYPE_IND]) && (CARD_RDEV(card)->id.dev_model == known_devices[i][QETH_DEV_MODEL_IND])) { card->info.type = known_devices[i][QETH_DEV_MODEL_IND]; card->qdio.no_out_queues = known_devices[i][QETH_QUEUE_NO_IND]; card->info.is_multicast_different = known_devices[i][QETH_MULTICAST_IND]; qeth_get_channel_path_desc(card); return 0; } i++; } card->info.type = QETH_CARD_TYPE_UNKNOWN; dev_err(&card->gdev->dev, "The adapter hardware is of an " "unknown type\n"); return -ENOENT; } static int qeth_clear_channel(struct qeth_channel *channel) { unsigned long flags; struct qeth_card *card; int rc; card = CARD_FROM_CDEV(channel->ccwdev); QETH_CARD_TEXT(card, 3, "clearch"); 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; card = CARD_FROM_CDEV(channel->ccwdev); QETH_CARD_TEXT(card, 3, "haltch"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) return rc; rc = wait_event_interruptible_timeout(card->wait_q, channel->state == CH_STATE_HALTED, QETH_TIMEOUT); if (rc == -ERESTARTSYS) return rc; if (channel->state != CH_STATE_HALTED) return -ETIME; return 0; } static int qeth_halt_channels(struct qeth_card *card) { int rc1 = 0, rc2 = 0, rc3 = 0; QETH_CARD_TEXT(card, 3, "haltchs"); rc1 = qeth_halt_channel(&card->read); rc2 = qeth_halt_channel(&card->write); rc3 = qeth_halt_channel(&card->data); if (rc1) return rc1; if (rc2) return rc2; return rc3; } static int qeth_clear_channels(struct qeth_card *card) { int rc1 = 0, rc2 = 0, rc3 = 0; QETH_CARD_TEXT(card, 3, "clearchs"); rc1 = qeth_clear_channel(&card->read); rc2 = qeth_clear_channel(&card->write); rc3 = qeth_clear_channel(&card->data); if (rc1) return rc1; if (rc2) return rc2; return rc3; } static int qeth_clear_halt_card(struct qeth_card *card, int halt) { int rc = 0; QETH_CARD_TEXT(card, 3, "clhacrd"); if (halt) rc = qeth_halt_channels(card); if (rc) return rc; return qeth_clear_channels(card); } int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) { int rc = 0; QETH_CARD_TEXT(card, 3, "qdioclr"); switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, QETH_QDIO_CLEANING)) { case QETH_QDIO_ESTABLISHED: if (card->info.type == QETH_CARD_TYPE_IQD) rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_HALT); else rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_CLEAR); if (rc) QETH_CARD_TEXT_(card, 3, "1err%d", rc); qdio_free(CARD_DDEV(card)); atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); break; case QETH_QDIO_CLEANING: return rc; default: break; } rc = qeth_clear_halt_card(card, use_halt); if (rc) QETH_CARD_TEXT_(card, 3, "2err%d", rc); card->state = CARD_STATE_DOWN; return rc; } EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); static int qeth_read_conf_data(struct qeth_card *card, void **buffer, int *length) { struct ciw *ciw; char *rcd_buf; int ret; struct qeth_channel *channel = &card->data; unsigned long flags; /* * scan for RCD command in extended SenseID data */ ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); if (!ciw || ciw->cmd == 0) return -EOPNOTSUPP; rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); if (!rcd_buf) return -ENOMEM; channel->ccw.cmd_code = ciw->cmd; channel->ccw.cda = (__u32) __pa(rcd_buf); channel->ccw.count = ciw->count; channel->ccw.flags = CCW_FLAG_SLI; channel->state = CH_STATE_RCD; spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, QETH_RCD_PARM, LPM_ANYPATH, 0, QETH_RCD_TIMEOUT); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (!ret) wait_event(card->wait_q, (channel->state == CH_STATE_RCD_DONE || channel->state == CH_STATE_DOWN)); if (channel->state == CH_STATE_DOWN) ret = -EIO; else channel->state = CH_STATE_DOWN; if (ret) { kfree(rcd_buf); *buffer = NULL; *length = 0; } else { *length = ciw->count; *buffer = rcd_buf; } return ret; } static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) { QETH_DBF_TEXT(SETUP, 2, "cfgunit"); 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'])); } static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) { QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) { card->info.blkt.time_total = 250; card->info.blkt.inter_packet = 5; card->info.blkt.inter_packet_jumbo = 15; } else { card->info.blkt.time_total = 0; card->info.blkt.inter_packet = 0; card->info.blkt.inter_packet_jumbo = 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 void qeth_init_func_level(struct qeth_card *card) { switch (card->info.type) { case QETH_CARD_TYPE_IQD: card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; break; case QETH_CARD_TYPE_OSD: case QETH_CARD_TYPE_OSN: card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; break; default: break; } } static int qeth_idx_activate_get_answer(struct qeth_channel *channel, void (*idx_reply_cb)(struct qeth_channel *, struct qeth_cmd_buffer *)) { struct qeth_cmd_buffer *iob; unsigned long flags; int rc; struct qeth_card *card; QETH_DBF_TEXT(SETUP, 2, "idxanswr"); card = CARD_FROM_CDEV(channel->ccwdev); iob = qeth_get_buffer(channel); iob->callback = idx_reply_cb; memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); channel->ccw.count = QETH_BUFSIZE; channel->ccw.cda = (__u32) __pa(iob->data); wait_event(card->wait_q, atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_start(channel->ccwdev, &channel->ccw, (addr_t) iob, 0, 0); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { QETH_DBF_MESSAGE(2, "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; __u8 tmp; int rc; struct ccw_dev_id temp_devid; 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); } tmp = ((__u8)card->info.portno) | 0x80; memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); 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)); ccw_device_get_id(CARD_DDEV(card), &temp_devid); memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); temp = (card->info.cula << 8) + card->info.unit_addr2; memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); wait_event(card->wait_q, atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_start(channel->ccwdev, &channel->ccw, (addr_t) iob, 0, 0); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { QETH_DBF_MESSAGE(2, "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) { dev_warn(&channel->ccwdev->dev, "The qeth device driver" " failed to recover an error on the device\n"); QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", dev_name(&channel->ccwdev->dev)); QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); qeth_clear_cmd_buffers(channel); return -ETIME; } return qeth_idx_activate_get_answer(channel, idx_reply_cb); } static int qeth_peer_func_level(int level) { if ((level & 0xff) == 8) return (level & 0xff) + 0x400; if (((level >> 8) & 3) == 1) return (level & 0xff) + 0x200; return level; } static void qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) { struct qeth_card *card; __u16 temp; QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); if (channel->state == CH_STATE_DOWN) { channel->state = CH_STATE_ACTIVATING; goto out; } card = CARD_FROM_CDEV(channel->ccwdev); if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) dev_err(&card->write.ccwdev->dev, "The adapter is used exclusively by another " "host\n"); else QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" " negative reply\n", dev_name(&card->write.ccwdev->dev)); goto out; } memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " "function level mismatch (sent: 0x%x, received: " "0x%x)\n", dev_name(&card->write.ccwdev->dev), card->info.func_level, temp); goto out; } channel->state = CH_STATE_UP; out: qeth_release_buffer(channel, iob); } 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(card, iob->data)) goto out; if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { case QETH_IDX_ACT_ERR_EXCL: dev_err(&card->write.ccwdev->dev, "The adapter is used exclusively by another " "host\n"); break; case QETH_IDX_ACT_ERR_AUTH: case QETH_IDX_ACT_ERR_AUTH_USER: dev_err(&card->read.ccwdev->dev, "Setting the device online failed because of " "insufficient authorization\n"); break; default: QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" " negative reply\n", dev_name(&card->read.ccwdev->dev)); } QETH_CARD_TEXT_(card, 2, "idxread%c", QETH_IDX_ACT_CAUSE_CODE(iob->data)); 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_OSD)) 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)) { QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " "level mismatch (sent: 0x%x, received: 0x%x)\n", dev_name(&card->read.ccwdev->dev), 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); } void qeth_prepare_control_data(struct qeth_card *card, int len, struct qeth_cmd_buffer *iob) { qeth_setup_ccw(&card->write, iob->data, len); iob->callback = qeth_release_buffer; memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); card->seqno.trans_hdr++; memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); card->seqno.pdu_hdr++; memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); } EXPORT_SYMBOL_GPL(qeth_prepare_control_data); int qeth_send_control_data(struct qeth_card *card, int len, struct qeth_cmd_buffer *iob, int (*reply_cb)(struct qeth_card *, struct qeth_reply *, unsigned long), void *reply_param) { int rc; unsigned long flags; struct qeth_reply *reply = NULL; unsigned long timeout, event_timeout; struct qeth_ipa_cmd *cmd; QETH_CARD_TEXT(card, 2, "sendctl"); if (card->read_or_write_problem) { qeth_release_buffer(iob->channel, iob); return -EIO; } reply = qeth_alloc_reply(card); if (!reply) { return -ENOMEM; } reply->callback = reply_cb; reply->param = reply_param; if (card->state == CARD_STATE_DOWN) reply->seqno = QETH_IDX_COMMAND_SEQNO; else reply->seqno = card->seqno.ipa++; init_waitqueue_head(&reply->wait_q); spin_lock_irqsave(&card->lock, flags); list_add_tail(&reply->list, &card->cmd_waiter_list); spin_unlock_irqrestore(&card->lock, flags); QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; qeth_prepare_control_data(card, len, iob); if (IS_IPA(iob->data)) event_timeout = QETH_IPA_TIMEOUT; else event_timeout = QETH_TIMEOUT; timeout = jiffies + event_timeout; QETH_CARD_TEXT(card, 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) { QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " "ccw_device_start rc = %i\n", dev_name(&card->write.ccwdev->dev), rc); QETH_CARD_TEXT_(card, 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; } /* we have only one long running ipassist, since we can ensure process context of this command we can sleep */ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); if ((cmd->hdr.command == IPA_CMD_SETIP) && (cmd->hdr.prot_version == QETH_PROT_IPV4)) { if (!wait_event_timeout(reply->wait_q, atomic_read(&reply->received), event_timeout)) goto time_err; } else { while (!atomic_read(&reply->received)) { if (time_after(jiffies, timeout)) goto time_err; cpu_relax(); }; } rc = reply->rc; qeth_put_reply(reply); return rc; time_err: spin_lock_irqsave(&reply->card->lock, flags); list_del_init(&reply->list); spin_unlock_irqrestore(&reply->card->lock, flags); reply->rc = -ETIME; atomic_inc(&reply->received); atomic_set(&card->write.irq_pending, 0); qeth_release_buffer(iob->channel, iob); card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO; wake_up(&reply->wait_q); rc = reply->rc; qeth_put_reply(reply); return rc; } EXPORT_SYMBOL_GPL(qeth_send_control_data); 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 inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) { switch (card->info.type) { case QETH_CARD_TYPE_UNKNOWN: return 1500; case QETH_CARD_TYPE_IQD: return card->info.max_mtu; case QETH_CARD_TYPE_OSD: switch (card->info.link_type) { case QETH_LINK_TYPE_HSTR: case QETH_LINK_TYPE_LANE_TR: return 2000; default: return 1492; } case QETH_CARD_TYPE_OSM: case QETH_CARD_TYPE_OSX: return 1492; default: return 1500; } } static inline int qeth_get_max_mtu_for_card(int cardtype) { switch (cardtype) { case QETH_CARD_TYPE_UNKNOWN: case QETH_CARD_TYPE_OSD: case QETH_CARD_TYPE_OSN: case QETH_CARD_TYPE_OSM: case QETH_CARD_TYPE_OSX: return 61440; case QETH_CARD_TYPE_IQD: return 57344; default: return 1500; } } static inline int qeth_get_mtu_out_of_mpc(int cardtype) { switch (cardtype) { case QETH_CARD_TYPE_IQD: return 1; default: return 0; } } static inline int qeth_get_mtu_outof_framesize(int framesize) { switch (framesize) { case 0x4000: return 8192; case 0x6000: return 16384; case 0xa000: return 32768; case 0xffff: return 57344; default: return 0; } } static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) { switch (card->info.type) { case QETH_CARD_TYPE_OSD: case QETH_CARD_TYPE_OSM: case QETH_CARD_TYPE_OSX: return ((mtu >= 576) && (mtu <= 61440)); case QETH_CARD_TYPE_IQD: return ((mtu >= 576) && (mtu <= card->info.max_mtu + 4096 - 32)); case QETH_CARD_TYPE_OSN: case QETH_CARD_TYPE_UNKNOWN: default: return 1; } } 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, "link%d", card->info.link_type); QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); return 0; } static int qeth_ulp_enable(struct qeth_card *card) { int rc; char prot_type; struct qeth_cmd_buffer *iob; /*FIXME: trace view callbacks*/ QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); iob = qeth_wait_for_buffer(&card->write); memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (__u8) card->info.portno; if (card->options.layer2) if (card->info.type == QETH_CARD_TYPE_OSN) prot_type = QETH_PROT_OSN2; else prot_type = QETH_PROT_LAYER2; else prot_type = QETH_PROT_TCPIP; memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), card->info.portname, 9); rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, qeth_ulp_enable_cb, NULL); return rc; } static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_cmd_buffer *iob; int rc = 0; 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); if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 3)) { QETH_DBF_TEXT(SETUP, 2, "olmlimit"); dev_err(&card->gdev->dev, "A connection could not be " "established because of an OLM limit\n"); iob->rc = -EMLINK; } QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); return rc; } static int qeth_ulp_setup(struct qeth_card *card) { int rc; __u16 temp; struct qeth_cmd_buffer *iob; struct ccw_dev_id dev_id; QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); iob = qeth_wait_for_buffer(&card->write); memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); ccw_device_get_id(CARD_DDEV(card), &dev_id); memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); temp = (card->info.cula << 8) + card->info.unit_addr2; memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, qeth_ulp_setup_cb, NULL); return rc; } static int qeth_alloc_qdio_buffers(struct qeth_card *card) { int i, j; QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) return 0; card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL); if (!card->qdio.in_q) goto out_nomem; QETH_DBF_TEXT(SETUP, 2, "inq"); QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); /* give inbound qeth_qdio_buffers their qdio_buffers */ for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) card->qdio.in_q->bufs[i].buffer = &card->qdio.in_q->qdio_bufs[i]; /* inbound buffer pool */ if (qeth_alloc_buffer_pool(card)) goto out_freeinq; /* outbound */ card->qdio.out_qs = kmalloc(card->qdio.no_out_queues * sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); if (!card->qdio.out_qs) goto out_freepool; for (i = 0; i < card->qdio.no_out_queues; ++i) { card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), GFP_KERNEL); if (!card->qdio.out_qs[i]) goto out_freeoutq; QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); card->qdio.out_qs[i]->queue_no = i; /* give outbound qeth_qdio_buffers their qdio_buffers */ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { card->qdio.out_qs[i]->bufs[j].buffer = &card->qdio.out_qs[i]->qdio_bufs[j]; skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. skb_list); lockdep_set_class( &card->qdio.out_qs[i]->bufs[j].skb_list.lock, &qdio_out_skb_queue_key); INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); } } return 0; out_freeoutq: while (i > 0) kfree(card->qdio.out_qs[--i]); kfree(card->qdio.out_qs); card->qdio.out_qs = NULL; out_freepool: qeth_free_buffer_pool(card); out_freeinq: kfree(card->qdio.in_q); card->qdio.in_q = NULL; out_nomem: atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); return -ENOMEM; } static void qeth_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 int qeth_qdio_activate(struct qeth_card *card) { QETH_DBF_TEXT(SETUP, 3, "qdioact"); return qdio_activate(CARD_DDEV(card)); } 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"); rc = qeth_issue_next_read(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); return rc; } rc = qeth_cm_enable(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); goto out_qdio; } rc = qeth_cm_setup(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); goto out_qdio; } rc = qeth_ulp_enable(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); goto out_qdio; } rc = qeth_ulp_setup(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); goto out_qdio; } rc = qeth_alloc_qdio_buffers(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); goto out_qdio; } rc = qeth_qdio_establish(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); qeth_free_qdio_buffers(card); goto out_qdio; } rc = qeth_qdio_activate(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); goto out_qdio; } rc = qeth_dm_act(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); goto out_qdio; } return 0; out_qdio: qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); return rc; } static 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; dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n" "with link type %s (portname: %s)\n", 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]) dev_info(&card->gdev->dev, "Device is a%s " "card%s%s%s\nwith link type %s " "(no portname needed by interface).\n", 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 dev_info(&card->gdev->dev, "Device is a%s " "card%s%s%s\nwith link type %s.\n", 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)); } void qeth_print_status_message(struct qeth_card *card) { switch (card->info.type) { case QETH_CARD_TYPE_OSD: case QETH_CARD_TYPE_OSM: case QETH_CARD_TYPE_OSX: /* VM will use a non-zero first character * to indicate a HiperSockets like reporting * of the level OSA sets the first character to zero * */ if (!card->info.mcl_level[0]) { sprintf(card->info.mcl_level, "%02x%02x", card->info.mcl_level[2], card->info.mcl_level[3]); card->info.mcl_level[QETH_MCL_LENGTH] = 0; break; } /* fallthrough */ case QETH_CARD_TYPE_IQD: if ((card->info.guestlan) || (card->info.mcl_level[0] & 0x80)) { 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); } EXPORT_SYMBOL_GPL(qeth_print_status_message); static void qeth_initialize_working_pool_list(struct qeth_card *card) { struct qeth_buffer_pool_entry *entry; QETH_CARD_TEXT(card, 5, "inwrklst"); list_for_each_entry(entry, &card->qdio.init_pool.entry_list, init_list) { qeth_put_buffer_pool_entry(card, entry); } } static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( struct qeth_card *card) { struct list_head *plh; struct qeth_buffer_pool_entry *entry; int i, free; struct page *page; if (list_empty(&card->qdio.in_buf_pool.entry_list)) return NULL; list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { entry = list_entry(plh, struct qeth_buffer_pool_entry, list); free = 1; for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { if (page_count(virt_to_page(entry->elements[i])) > 1) { free = 0; break; } } if (free) { list_del_init(&entry->list); return entry; } } /* no free buffer in pool so take first one and swap pages */ entry = list_entry(card->qdio.in_buf_pool.entry_list.next, struct qeth_buffer_pool_entry, list); for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { if (page_count(virt_to_page(entry->elements[i])) > 1) { page = alloc_page(GFP_ATOMIC); if (!page) { return NULL; } else { free_page((unsigned long)entry->elements[i]); entry->elements[i] = page_address(page); if (card->options.performance_stats) card->perf_stats.sg_alloc_page_rx++; } } } list_del_init(&entry->list); return entry; } static int qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf) { struct qeth_buffer_pool_entry *pool_entry; int i; pool_entry = qeth_find_free_buffer_pool_entry(card); if (!pool_entry) return 1; /* * since the buffer is accessed only from the input_tasklet * there shouldn't be a need to synchronize; also, since we use * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off * buffers */ 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; } return 0; } 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); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "1err%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; } EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) { switch (link_type) { case QETH_LINK_TYPE_HSTR: return 2; default: return 1; } } 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; } 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; } EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, char prot_type) { memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); } EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); 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_CARD_TEXT(card, 4, "sendipa"); if (card->options.layer2) if (card->info.type == QETH_CARD_TYPE_OSN) prot_type = QETH_PROT_OSN2; else prot_type = QETH_PROT_LAYER2; else prot_type = QETH_PROT_TCPIP; qeth_prepare_ipa_cmd(card, iob, prot_type); rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob, reply_cb, reply_param); if (rc == -ETIME) { qeth_clear_ipacmd_list(card); qeth_schedule_recovery(card); } return rc; } EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); 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; } int qeth_send_startlan(struct qeth_card *card) { int rc; QETH_DBF_TEXT(SETUP, 2, "strtlan"); rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0); return rc; } EXPORT_SYMBOL_GPL(qeth_send_startlan); 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(SETUP, 2, "stoplan"); rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0); return rc; } EXPORT_SYMBOL_GPL(qeth_send_stoplan); int qeth_default_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; QETH_CARD_TEXT(card, 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; } EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); static int qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; QETH_CARD_TEXT(card, 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; QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_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); } 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; } EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); int qeth_query_setadapterparms(struct qeth_card *card) { int rc; struct qeth_cmd_buffer *iob; QETH_CARD_TEXT(card, 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; } EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf, unsigned int qdio_error, const char *dbftext) { if (qdio_error) { QETH_CARD_TEXT(card, 2, dbftext); QETH_CARD_TEXT_(card, 2, " F15=%02X", buf->element[15].flags & 0xff); QETH_CARD_TEXT_(card, 2, " F14=%02X", buf->element[14].flags & 0xff); QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); if ((buf->element[15].flags & 0xff) == 0x12) { card->stats.rx_dropped++; return 0; } else return 1; } return 0; } EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); void qeth_queue_input_buffer(struct qeth_card *card, int index) { struct qeth_qdio_q *queue = card->qdio.in_q; int count; int i; int rc; int newcount = 0; count = (index < queue->next_buf_to_init)? card->qdio.in_buf_pool.buf_count - (queue->next_buf_to_init - index) : card->qdio.in_buf_pool.buf_count - (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); /* only requeue at a certain threshold to avoid SIGAs */ if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { for (i = queue->next_buf_to_init; i < queue->next_buf_to_init + count; ++i) { if (qeth_init_input_buffer(card, &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { break; } else { newcount++; } } if (newcount < count) { /* we are in memory shortage so we switch back to traditional skb allocation and drop packages */ atomic_set(&card->force_alloc_skb, 3); count = newcount; } else { atomic_add_unless(&card->force_alloc_skb, -1, 0); } /* * according to old code it should be avoided to requeue all * 128 buffers in order to benefit from PCI avoidance. * this function keeps at least one buffer (the buffer at * 'index') un-requeued -> this buffer is the first buffer that * will be requeued the next time */ if (card->options.performance_stats) { card->perf_stats.inbound_do_qdio_cnt++; card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros(); } rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, queue->next_buf_to_init, count); if (card->options.performance_stats) card->perf_stats.inbound_do_qdio_time += qeth_get_micros() - card->perf_stats.inbound_do_qdio_start_time; if (rc) { dev_warn(&card->gdev->dev, "QDIO reported an error, rc=%i\n", rc); QETH_CARD_TEXT(card, 2, "qinberr"); } queue->next_buf_to_init = (queue->next_buf_to_init + count) % QDIO_MAX_BUFFERS_PER_Q; } } EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); static int qeth_handle_send_error(struct qeth_card *card, struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) { int sbalf15 = buffer->buffer->element[15].flags & 0xff; QETH_CARD_TEXT(card, 6, "hdsnderr"); if (card->info.type == QETH_CARD_TYPE_IQD) { if (sbalf15 == 0) { qdio_err = 0; } else { qdio_err = 1; } } qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); if (!qdio_err) return QETH_SEND_ERROR_NONE; if ((sbalf15 >= 15) && (sbalf15 <= 31)) return QETH_SEND_ERROR_RETRY; QETH_CARD_TEXT(card, 1, "lnkfail"); QETH_CARD_TEXT_(card, 1, "%04x %02x", (u16)qdio_err, (u8)sbalf15); return QETH_SEND_ERROR_LINK_FAILURE; } /* * Switched to packing state if the number of used buffers on a queue * reaches a certain limit. */ static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) { if (!queue->do_pack) { if (atomic_read(&queue->used_buffers) >= QETH_HIGH_WATERMARK_PACK){ /* switch non-PACKING -> PACKING */ QETH_CARD_TEXT(queue->card, 6, "np->pack"); if (queue->card->options.performance_stats) queue->card->perf_stats.sc_dp_p++; queue->do_pack = 1; } } } /* * Switches from packing to non-packing mode. If there is a packing * buffer on the queue this buffer will be prepared to be flushed. * In that case 1 is returned to inform the caller. If no buffer * has to be flushed, zero is returned. */ static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) { struct qeth_qdio_out_buffer *buffer; int flush_count = 0; if (queue->do_pack) { if (atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) { /* switch PACKING -> non-PACKING */ QETH_CARD_TEXT(queue->card, 6, "pack->np"); if (queue->card->options.performance_stats) queue->card->perf_stats.sc_p_dp++; queue->do_pack = 0; /* flush packing buffers */ buffer = &queue->bufs[queue->next_buf_to_fill]; if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && (buffer->next_element_to_fill > 0)) { atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); flush_count++; queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; } } } return flush_count; } /* * Called to flush a packing buffer if no more pci flags are on the queue. * Checks if there is a packing buffer and prepares it to be flushed. * In that case returns 1, otherwise zero. */ static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) { struct qeth_qdio_out_buffer *buffer; buffer = &queue->bufs[queue->next_buf_to_fill]; if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && (buffer->next_element_to_fill > 0)) { /* it's a packing buffer */ atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; return 1; } return 0; } static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, int count) { struct qeth_qdio_out_buffer *buf; int rc; int i; unsigned int qdio_flags; 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; if (queue->card->options.performance_stats) { queue->card->perf_stats.outbound_do_qdio_cnt++; queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros(); } qdio_flags = QDIO_FLAG_SYNC_OUTPUT; if (atomic_read(&queue->set_pci_flags_count)) qdio_flags |= QDIO_FLAG_PCI_OUT; rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, queue->queue_no, index, count); if (queue->card->options.performance_stats) queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() - queue->card->perf_stats.outbound_do_qdio_start_time; if (rc) { queue->card->stats.tx_errors += count; /* ignore temporary SIGA errors without busy condition */ if (rc == QDIO_ERROR_SIGA_TARGET) return; QETH_CARD_TEXT(queue->card, 2, "flushbuf"); QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); /* this must not happen under normal circumstances. if it * happens something is really wrong -> recover */ qeth_schedule_recovery(queue->card); return; } atomic_add(count, &queue->used_buffers); if (queue->card->options.performance_stats) queue->card->perf_stats.bufs_sent += count; } static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) { int index; int flush_cnt = 0; int q_was_packing = 0; /* * check if weed have to switch to non-packing mode or if * we have to get a pci flag out on the queue */ if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || !atomic_read(&queue->set_pci_flags_count)) { if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == QETH_OUT_Q_UNLOCKED) { /* * If we get in here, there was no action in * do_send_packet. So, we check if there is a * packing buffer to be flushed here. */ netif_stop_queue(queue->card->dev); index = queue->next_buf_to_fill; q_was_packing = queue->do_pack; /* queue->do_pack may change */ barrier(); flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); if (!flush_cnt && !atomic_read(&queue->set_pci_flags_count)) flush_cnt += qeth_flush_buffers_on_no_pci(queue); if (queue->card->options.performance_stats && q_was_packing) queue->card->perf_stats.bufs_sent_pack += flush_cnt; if (flush_cnt) qeth_flush_buffers(queue, index, flush_cnt); atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); } } } void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, unsigned long card_ptr) { struct qeth_card *card = (struct qeth_card *)card_ptr; if (card->dev) napi_schedule(&card->napi); } EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, unsigned int queue, int first_element, int count, unsigned long card_ptr) { struct qeth_card *card = (struct qeth_card *)card_ptr; if (qdio_err) qeth_schedule_recovery(card); } EXPORT_SYMBOL_GPL(qeth_qdio_input_handler); void qeth_qdio_output_handler(struct ccw_device *ccwdev, unsigned int qdio_error, 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_CARD_TEXT(card, 6, "qdouhdl"); if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { QETH_CARD_TEXT(card, 2, "achkcond"); netif_stop_queue(card->dev); qeth_schedule_recovery(card); return; } if (card->options.performance_stats) { card->perf_stats.outbound_handler_cnt++; card->perf_stats.outbound_handler_start_time = qeth_get_micros(); } for (i = first_element; i < (first_element + count); ++i) { buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; qeth_handle_send_error(card, buffer, qdio_error); qeth_clear_output_buffer(queue, buffer); } atomic_sub(count, &queue->used_buffers); /* check if we need to do something on this outbound queue */ if (card->info.type != QETH_CARD_TYPE_IQD) qeth_check_outbound_queue(queue); netif_wake_queue(queue->card->dev); if (card->options.performance_stats) card->perf_stats.outbound_handler_time += qeth_get_micros() - card->perf_stats.outbound_handler_start_time; } EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); 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_OSD || card->info.type == QETH_CARD_TYPE_OSX)) return card->qdio.default_out_queue; switch (card->qdio.no_out_queues) { case 4: if (cast_type && card->info.is_multicast_different) return card->info.is_multicast_different & (card->qdio.no_out_queues - 1); if (card->qdio.do_prio_queueing && (ipv == 4)) { const u8 tos = ip_hdr(skb)->tos; if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_TOS) { if (tos & IP_TOS_NOTIMPORTANT) return 3; if (tos & IP_TOS_HIGHRELIABILITY) return 2; if (tos & IP_TOS_HIGHTHROUGHPUT) return 1; if (tos & IP_TOS_LOWDELAY) return 0; } if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) return 3 - (tos >> 6); } else if (card->qdio.do_prio_queueing && (ipv == 6)) { /* TODO: IPv6!!! */ } return card->qdio.default_out_queue; case 1: /* fallthrough for single-out-queue 1920-device */ default: return card->qdio.default_out_queue; } } EXPORT_SYMBOL_GPL(qeth_get_priority_queue); int qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb, int elems) { int dlen = skb->len - skb->data_len; int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) - PFN_DOWN((unsigned long)skb->data); elements_needed += skb_shinfo(skb)->nr_frags; if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { QETH_DBF_MESSAGE(2, "Invalid size of IP packet " "(Number=%d / Length=%d). Discarded.\n", (elements_needed+elems), skb->len); return 0; } return elements_needed; } EXPORT_SYMBOL_GPL(qeth_get_elements_no); int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len) { int hroom, inpage, rest; if (((unsigned long)skb->data & PAGE_MASK) != (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { hroom = skb_headroom(skb); inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); rest = len - inpage; if (rest > hroom) return 1; memmove(skb->data - rest, skb->data, skb->len - skb->data_len); skb->data -= rest; QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); } return 0; } EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); static inline void __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill, int offset) { int length = skb->len - skb->data_len; int length_here; int element; char *data; int first_lap, cnt; struct skb_frag_struct *frag; element = *next_element_to_fill; data = skb->data; first_lap = (is_tso == 0 ? 1 : 0); if (offset >= 0) { data = skb->data + offset; length -= offset; first_lap = 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) if (skb_shinfo(skb)->nr_frags) buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; else buffer->element[element].flags = 0; else buffer->element[element].flags = SBAL_FLAGS_MIDDLE_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; } for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { frag = &skb_shinfo(skb)->frags[cnt]; buffer->element[element].addr = (char *)page_to_phys(frag->page) + frag->page_offset; buffer->element[element].length = frag->size; buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG; element++; } if (buffer->element[element - 1].flags) buffer->element[element - 1].flags = SBAL_FLAGS_LAST_FRAG; *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 qeth_hdr *hdr, int offset, int hd_len) { struct qdio_buffer *buffer; int flush_cnt = 0, hdr_len, large_send = 0; buffer = buf->buffer; atomic_inc(&skb->users); skb_queue_tail(&buf->skb_list, skb); /*check first on TSO ....*/ if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) { int element = buf->next_element_to_fill; hdr_len = sizeof(struct qeth_hdr_tso) + ((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 (offset >= 0) { int element = buf->next_element_to_fill; buffer->element[element].addr = hdr; buffer->element[element].length = sizeof(struct qeth_hdr) + hd_len; buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; buf->is_header[element] = 1; buf->next_element_to_fill++; } __qeth_fill_buffer(skb, buffer, large_send, (int *)&buf->next_element_to_fill, offset); if (!queue->do_pack) { QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); /* set state to PRIMED -> will be flushed */ atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); flush_cnt = 1; } else { QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); if (queue->card->options.performance_stats) queue->card->perf_stats.skbs_sent_pack++; if (buf->next_element_to_fill >= QETH_MAX_BUFFER_ELEMENTS(queue->card)) { /* * packed buffer if full -> set state PRIMED * -> will be flushed */ atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); flush_cnt = 1; } } return flush_cnt; } 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, int offset, int hd_len) { struct qeth_qdio_out_buffer *buffer; int index; /* spin until we get the queue ... */ while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); /* ... now we've got the queue */ index = queue->next_buf_to_fill; buffer = &queue->bufs[queue->next_buf_to_fill]; /* * check if buffer is empty to make sure that we do not 'overtake' * ourselves and try to fill a buffer that is already primed */ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) goto out; queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); qeth_flush_buffers(queue, index, 1); return 0; out: atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); return -EBUSY; } EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); 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_qdio_out_buffer *buffer; int start_index; int flush_count = 0; int do_pack = 0; int tmp; int rc = 0; /* spin until we get the queue ... */ while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); start_index = queue->next_buf_to_fill; buffer = &queue->bufs[queue->next_buf_to_fill]; /* * check if buffer is empty to make sure that we do not 'overtake' * ourselves and try to fill a buffer that is already primed */ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); return -EBUSY; } /* check if we need to switch packing state of this queue */ qeth_switch_to_packing_if_needed(queue); if (queue->do_pack) { do_pack = 1; /* does packet fit in current buffer? */ if ((QETH_MAX_BUFFER_ELEMENTS(card) - buffer->next_element_to_fill) < elements_needed) { /* ... no -> set state PRIMED */ atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); flush_count++; queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; buffer = &queue->bufs[queue->next_buf_to_fill]; /* we did a step forward, so check buffer state * again */ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { qeth_flush_buffers(queue, start_index, flush_count); atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); return -EBUSY; } } } tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % QDIO_MAX_BUFFERS_PER_Q; flush_count += tmp; if (flush_count) qeth_flush_buffers(queue, start_index, flush_count); else if (!atomic_read(&queue->set_pci_flags_count)) atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); /* * queue->state will go from LOCKED -> UNLOCKED or from * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us * (switch packing state or flush buffer to get another pci flag out). * In that case we will enter this loop */ while (atomic_dec_return(&queue->state)) { flush_count = 0; start_index = queue->next_buf_to_fill; /* check if we can go back to non-packing state */ flush_count += qeth_switch_to_nonpacking_if_needed(queue); /* * check if we need to flush a packing buffer to get a pci * flag out on the queue */ if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) flush_count += qeth_flush_buffers_on_no_pci(queue); if (flush_count) qeth_flush_buffers(queue, start_index, flush_count); } /* at this point the queue is UNLOCKED again */ if (queue->card->options.performance_stats && do_pack) queue->card->perf_stats.bufs_sent_pack += flush_count; return rc; } EXPORT_SYMBOL_GPL(qeth_do_send_packet); static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; struct qeth_ipacmd_setadpparms *setparms; QETH_CARD_TEXT(card, 4, "prmadpcb"); cmd = (struct qeth_ipa_cmd *) data; setparms = &(cmd->data.setadapterparms); qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); if (cmd->hdr.return_code) { QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code); setparms->data.mode = SET_PROMISC_MODE_OFF; } card->info.promisc_mode = setparms->data.mode; return 0; } void qeth_setadp_promisc_mode(struct qeth_card *card) { enum qeth_ipa_promisc_modes mode; struct net_device *dev = card->dev; struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; QETH_CARD_TEXT(card, 4, "setprom"); if (((dev->flags & IFF_PROMISC) && (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || (!(dev->flags & IFF_PROMISC) && (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) return; mode = SET_PROMISC_MODE_OFF; if (dev->flags & IFF_PROMISC) mode = SET_PROMISC_MODE_ON; QETH_CARD_TEXT_(card, 4, "mode:%x", mode); iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, sizeof(struct qeth_ipacmd_setadpparms)); cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); cmd->data.setadapterparms.data.mode = mode; qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); } EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); int qeth_change_mtu(struct net_device *dev, int new_mtu) { struct qeth_card *card; char dbf_text[15]; card = dev->ml_priv; QETH_CARD_TEXT(card, 4, "chgmtu"); sprintf(dbf_text, "%8x", new_mtu); QETH_CARD_TEXT(card, 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; } EXPORT_SYMBOL_GPL(qeth_change_mtu); struct net_device_stats *qeth_get_stats(struct net_device *dev) { struct qeth_card *card; card = dev->ml_priv; QETH_CARD_TEXT(card, 5, "getstat"); return &card->stats; } EXPORT_SYMBOL_GPL(qeth_get_stats); static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; QETH_CARD_TEXT(card, 4, "chgmaccb"); cmd = (struct qeth_ipa_cmd *) data; if (!card->options.layer2 || !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { memcpy(card->dev->dev_addr, &cmd->data.setadapterparms.data.change_addr.addr, OSA_ADDR_LEN); card->info.mac_bits |= QETH_LAYER2_MAC_READ; } qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); return 0; } int qeth_setadpparms_change_macaddr(struct qeth_card *card) { int rc; struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; QETH_CARD_TEXT(card, 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; } EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; struct qeth_set_access_ctrl *access_ctrl_req; QETH_CARD_TEXT(card, 4, "setaccb"); cmd = (struct qeth_ipa_cmd *) data; access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; QETH_DBF_TEXT_(SETUP, 2, "setaccb"); QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); QETH_DBF_TEXT_(SETUP, 2, "rc=%d", cmd->data.setadapterparms.hdr.return_code); switch (cmd->data.setadapterparms.hdr.return_code) { case SET_ACCESS_CTRL_RC_SUCCESS: case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: { card->options.isolation = access_ctrl_req->subcmd_code; if (card->options.isolation == ISOLATION_MODE_NONE) { dev_info(&card->gdev->dev, "QDIO data connection isolation is deactivated\n"); } else { dev_info(&card->gdev->dev, "QDIO data connection isolation is activated\n"); } QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n", card->gdev->dev.kobj.name, access_ctrl_req->subcmd_code, cmd->data.setadapterparms.hdr.return_code); break; } case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: { QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", card->gdev->dev.kobj.name, access_ctrl_req->subcmd_code, cmd->data.setadapterparms.hdr.return_code); dev_err(&card->gdev->dev, "Adapter does not " "support QDIO data connection isolation\n"); /* ensure isolation mode is "none" */ card->options.isolation = ISOLATION_MODE_NONE; break; } case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: { QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", card->gdev->dev.kobj.name, access_ctrl_req->subcmd_code, cmd->data.setadapterparms.hdr.return_code); dev_err(&card->gdev->dev, "Adapter is dedicated. " "QDIO data connection isolation not supported\n"); /* ensure isolation mode is "none" */ card->options.isolation = ISOLATION_MODE_NONE; break; } case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: { QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", card->gdev->dev.kobj.name, access_ctrl_req->subcmd_code, cmd->data.setadapterparms.hdr.return_code); dev_err(&card->gdev->dev, "TSO does not permit QDIO data connection isolation\n"); /* ensure isolation mode is "none" */ card->options.isolation = ISOLATION_MODE_NONE; break; } default: { /* this should never happen */ QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d" "==UNKNOWN\n", card->gdev->dev.kobj.name, access_ctrl_req->subcmd_code, cmd->data.setadapterparms.hdr.return_code); /* ensure isolation mode is "none" */ card->options.isolation = ISOLATION_MODE_NONE; break; } } qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); return 0; } static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, enum qeth_ipa_isolation_modes isolation) { int rc; struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; struct qeth_set_access_ctrl *access_ctrl_req; QETH_CARD_TEXT(card, 4, "setacctl"); QETH_DBF_TEXT_(SETUP, 2, "setacctl"); QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, sizeof(struct qeth_ipacmd_setadpparms_hdr) + sizeof(struct qeth_set_access_ctrl)); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; access_ctrl_req->subcmd_code = isolation; rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, NULL); QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); return rc; } int qeth_set_access_ctrl_online(struct qeth_card *card) { int rc = 0; QETH_CARD_TEXT(card, 4, "setactlo"); if ((card->info.type == QETH_CARD_TYPE_OSD || card->info.type == QETH_CARD_TYPE_OSX) && qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { rc = qeth_setadpparms_set_access_ctrl(card, card->options.isolation); if (rc) { QETH_DBF_MESSAGE(3, "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", card->gdev->dev.kobj.name, rc); } } else if (card->options.isolation != ISOLATION_MODE_NONE) { card->options.isolation = ISOLATION_MODE_NONE; dev_err(&card->gdev->dev, "Adapter does not " "support QDIO data connection isolation\n"); rc = -EOPNOTSUPP; } return rc; } EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); void qeth_tx_timeout(struct net_device *dev) { struct qeth_card *card; card = dev->ml_priv; QETH_CARD_TEXT(card, 4, "txtimeo"); card->stats.tx_errors++; qeth_schedule_recovery(card); } EXPORT_SYMBOL_GPL(qeth_tx_timeout); int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) { struct qeth_card *card = dev->ml_priv; int rc = 0; switch (regnum) { case MII_BMCR: /* Basic mode control register */ rc = BMCR_FULLDPLX; if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && (card->info.link_type != QETH_LINK_TYPE_OSN) && (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) rc |= BMCR_SPEED100; break; case MII_BMSR: /* Basic mode status register */ rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | BMSR_100BASE4; break; case MII_PHYSID1: /* PHYS ID 1 */ rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | dev->dev_addr[2]; rc = (rc >> 5) & 0xFFFF; break; case MII_PHYSID2: /* PHYS ID 2 */ rc = (dev->dev_addr[2] << 10) & 0xFFFF; break; case MII_ADVERTISE: /* Advertisement control reg */ rc = ADVERTISE_ALL; break; case MII_LPA: /* Link partner ability reg */ rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | LPA_100BASE4 | LPA_LPACK; break; case MII_EXPANSION: /* Expansion register */ break; case MII_DCOUNTER: /* disconnect counter */ break; case MII_FCSCOUNTER: /* false carrier counter */ break; case MII_NWAYTEST: /* N-way auto-neg test register */ break; case MII_RERRCOUNTER: /* rx error counter */ rc = card->stats.rx_errors; break; case MII_SREVISION: /* silicon revision */ break; case MII_RESV1: /* reserved 1 */ break; case MII_LBRERROR: /* loopback, rx, bypass error */ break; case MII_PHYADDR: /* physical address */ break; case MII_RESV2: /* reserved 2 */ break; case MII_TPISTATUS: /* TPI status for 10mbps */ break; case MII_NCONFIG: /* network interface config */ break; default: break; } return rc; } EXPORT_SYMBOL_GPL(qeth_mdio_read); 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_CARD_TEXT(card, 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 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_CARD_TEXT(card, 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_CARD_TEXT_(card, 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_CARD_TEXT_(card, 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_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); cmd->hdr.return_code = -ENOMEM; return 0; } QETH_CARD_TEXT_(card, 4, "snore%i", cmd->data.setadapterparms.hdr.used_total); QETH_CARD_TEXT_(card, 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_CARD_TEXT_(card, 4, "srtot%i", cmd->data.setadapterparms.hdr.used_total); QETH_CARD_TEXT_(card, 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; } int qeth_snmp_command(struct qeth_card *card, char __user *udata) { struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; struct qeth_snmp_ureq *ureq; int req_len; struct qeth_arp_query_info qinfo = {0, }; int rc = 0; QETH_CARD_TEXT(card, 3, "snmpcmd"); if (card->info.guestlan) return -EOPNOTSUPP; if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && (!card->options.layer2)) { 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 = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); if (IS_ERR(ureq)) { QETH_CARD_TEXT(card, 2, "snmpnome"); return PTR_ERR(ureq); } qinfo.udata_len = ureq->hdr.data_len; qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); if (!qinfo.udata) { kfree(ureq); return -ENOMEM; } qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, QETH_SNMP_SETADP_CMDLENGTH + req_len); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, qeth_snmp_command_cb, (void *)&qinfo); if (rc) QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", QETH_CARD_IFNAME(card), rc); else { if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) rc = -EFAULT; } kfree(ureq); kfree(qinfo.udata); return rc; } EXPORT_SYMBOL_GPL(qeth_snmp_command); static inline int qeth_get_qdio_q_format(struct qeth_card *card) { switch (card->info.type) { case QETH_CARD_TYPE_IQD: return 2; default: return 0; } } static int qeth_qdio_establish(struct qeth_card *card) { struct qdio_initialize init_data; char *qib_param_field; struct qdio_buffer **in_sbal_ptrs; struct qdio_buffer **out_sbal_ptrs; int i, j, k; int rc = 0; QETH_DBF_TEXT(SETUP, 2, "qdioest"); qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), GFP_KERNEL); if (!qib_param_field) return -ENOMEM; qeth_create_qib_param_field(card, qib_param_field); qeth_create_qib_param_field_blkt(card, qib_param_field); in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), GFP_KERNEL); if (!in_sbal_ptrs) { kfree(qib_param_field); return -ENOMEM; } for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) in_sbal_ptrs[i] = (struct qdio_buffer *) virt_to_phys(card->qdio.in_q->bufs[i].buffer); out_sbal_ptrs = kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), GFP_KERNEL); if (!out_sbal_ptrs) { kfree(in_sbal_ptrs); kfree(qib_param_field); return -ENOMEM; } for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( card->qdio.out_qs[i]->bufs[j].buffer); } memset(&init_data, 0, sizeof(struct qdio_initialize)); init_data.cdev = CARD_DDEV(card); init_data.q_format = qeth_get_qdio_q_format(card); init_data.qib_param_field_format = 0; init_data.qib_param_field = qib_param_field; init_data.no_input_qs = 1; init_data.no_output_qs = card->qdio.no_out_queues; init_data.input_handler = card->discipline.input_handler; init_data.output_handler = card->discipline.output_handler; init_data.queue_start_poll = card->discipline.start_poll; init_data.int_parm = (unsigned long) card; init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { rc = qdio_allocate(&init_data); if (rc) { atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); goto out; } rc = qdio_establish(&init_data); if (rc) { atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); qdio_free(CARD_DDEV(card)); } } out: kfree(out_sbal_ptrs); kfree(in_sbal_ptrs); kfree(qib_param_field); return rc; } static void qeth_core_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); kfree(card->ip_tbd_list); qeth_free_qdio_buffers(card); unregister_service_level(&card->qeth_service_level); kfree(card); } static struct ccw_device_id qeth_ids[] = { {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), .driver_info = QETH_CARD_TYPE_OSD}, {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), .driver_info = QETH_CARD_TYPE_IQD}, {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), .driver_info = QETH_CARD_TYPE_OSN}, {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), .driver_info = QETH_CARD_TYPE_OSM}, {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), .driver_info = QETH_CARD_TYPE_OSX}, {}, }; MODULE_DEVICE_TABLE(ccw, qeth_ids); static struct ccw_driver qeth_ccw_driver = { .name = "qeth", .ids = qeth_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, }; static int qeth_core_driver_group(const char *buf, struct device *root_dev, unsigned long driver_id) { return ccwgroup_create_from_string(root_dev, driver_id, &qeth_ccw_driver, 3, buf); } int qeth_core_hardsetup_card(struct qeth_card *card) { int retries = 0; int rc; QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); atomic_set(&card->force_alloc_skb, 0); retry: if (retries) QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", dev_name(&card->gdev->dev)); ccw_device_set_offline(CARD_DDEV(card)); ccw_device_set_offline(CARD_WDEV(card)); ccw_device_set_offline(CARD_RDEV(card)); rc = ccw_device_set_online(CARD_RDEV(card)); if (rc) goto retriable; rc = ccw_device_set_online(CARD_WDEV(card)); if (rc) goto retriable; rc = ccw_device_set_online(CARD_DDEV(card)); if (rc) goto retriable; rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); retriable: if (rc == -ERESTARTSYS) { QETH_DBF_TEXT(SETUP, 2, "break1"); return rc; } else if (rc) { QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); if (++retries > 3) goto out; else goto retry; } 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; } card->read_or_write_problem = 0; rc = qeth_mpc_initialize(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); goto out; } return 0; out: dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " "an error on the device\n"); QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", dev_name(&card->gdev->dev), rc); return rc; } EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, struct sk_buff **pskb, int offset, int *pfrag, int data_len) { struct page *page = virt_to_page(element->addr); if (*pskb == NULL) { /* the upper protocol layers assume that there is data in the * skb itself. Copy a small amount (64 bytes) to make them * happy. */ *pskb = dev_alloc_skb(64 + ETH_HLEN); if (!(*pskb)) return -ENOMEM; skb_reserve(*pskb, ETH_HLEN); if (data_len <= 64) { memcpy(skb_put(*pskb, data_len), element->addr + offset, data_len); } else { get_page(page); memcpy(skb_put(*pskb, 64), element->addr + offset, 64); skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, data_len - 64); (*pskb)->data_len += data_len - 64; (*pskb)->len += data_len - 64; (*pskb)->truesize += data_len - 64; (*pfrag)++; } } else { get_page(page); skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len); (*pskb)->data_len += data_len; (*pskb)->len += data_len; (*pskb)->truesize += data_len; (*pfrag)++; } return 0; } struct sk_buff *qeth_core_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 = 0; void *data_ptr; int data_len; int headroom = 0; int use_rx_sg = 0; int frag = 0; /* 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); switch ((*hdr)->hdr.l2.id) { case QETH_HEADER_TYPE_LAYER2: skb_len = (*hdr)->hdr.l2.pkt_length; break; case QETH_HEADER_TYPE_LAYER3: skb_len = (*hdr)->hdr.l3.length; if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || (card->info.link_type == QETH_LINK_TYPE_HSTR)) headroom = TR_HLEN; else headroom = ETH_HLEN; break; case QETH_HEADER_TYPE_OSN: skb_len = (*hdr)->hdr.osn.pdu_length; headroom = sizeof(struct qeth_hdr); break; default: break; } if (!skb_len) return NULL; if ((skb_len >= card->options.rx_sg_cb) && (!(card->info.type == QETH_CARD_TYPE_OSN)) && (!atomic_read(&card->force_alloc_skb))) { use_rx_sg = 1; } else { skb = dev_alloc_skb(skb_len + headroom); if (!skb) goto no_mem; if (headroom) skb_reserve(skb, headroom); } data_ptr = element->addr + offset; while (skb_len) { data_len = min(skb_len, (int)(element->length - offset)); if (data_len) { if (use_rx_sg) { if (qeth_create_skb_frag(element, &skb, offset, &frag, data_len)) goto no_mem; } else { memcpy(skb_put(skb, data_len), data_ptr, data_len); } } skb_len -= data_len; if (skb_len) { if (qeth_is_last_sbale(element)) { QETH_CARD_TEXT(card, 4, "unexeob"); QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); dev_kfree_skb_any(skb); card->stats.rx_errors++; return NULL; } element++; offset = 0; data_ptr = element->addr; } else { offset += data_len; } } *__element = element; *__offset = offset; if (use_rx_sg && card->options.performance_stats) { card->perf_stats.sg_skbs_rx++; card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; } return skb; no_mem: if (net_ratelimit()) { QETH_CARD_TEXT(card, 2, "noskbmem"); } card->stats.rx_dropped++; return NULL; } EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); static void qeth_unregister_dbf_views(void) { int x; for (x = 0; x < QETH_DBF_INFOS; x++) { debug_unregister(qeth_dbf[x].id); qeth_dbf[x].id = NULL; } } void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) { char dbf_txt_buf[32]; va_list args; if (level > id->level) return; va_start(args, fmt); vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); va_end(args); debug_text_event(id, level, dbf_txt_buf); } EXPORT_SYMBOL_GPL(qeth_dbf_longtext); static int qeth_register_dbf_views(void) { int ret; int x; for (x = 0; x < QETH_DBF_INFOS; x++) { /* register the areas */ qeth_dbf[x].id = debug_register(qeth_dbf[x].name, qeth_dbf[x].pages, qeth_dbf[x].areas, qeth_dbf[x].len); if (qeth_dbf[x].id == NULL) { qeth_unregister_dbf_views(); return -ENOMEM; } /* register a view */ ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); if (ret) { qeth_unregister_dbf_views(); return ret; } /* set a passing level */ debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); } return 0; } int qeth_core_load_discipline(struct qeth_card *card, enum qeth_discipline_id discipline) { int rc = 0; switch (discipline) { case QETH_DISCIPLINE_LAYER3: card->discipline.ccwgdriver = try_then_request_module( symbol_get(qeth_l3_ccwgroup_driver), "qeth_l3"); break; case QETH_DISCIPLINE_LAYER2: card->discipline.ccwgdriver = try_then_request_module( symbol_get(qeth_l2_ccwgroup_driver), "qeth_l2"); break; } if (!card->discipline.ccwgdriver) { dev_err(&card->gdev->dev, "There is no kernel module to " "support discipline %d\n", discipline); rc = -EINVAL; } return rc; } void qeth_core_free_discipline(struct qeth_card *card) { if (card->options.layer2) symbol_put(qeth_l2_ccwgroup_driver); else symbol_put(qeth_l3_ccwgroup_driver); card->discipline.ccwgdriver = NULL; } static void qeth_determine_capabilities(struct qeth_card *card) { int rc; int length; char *prcd; QETH_DBF_TEXT(SETUP, 2, "detcapab"); rc = ccw_device_set_online(CARD_DDEV(card)); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); goto out; } rc = qeth_read_conf_data(card, (void **) &prcd, &length); if (rc) { QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", dev_name(&card->gdev->dev), rc); QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); goto out_offline; } qeth_configure_unitaddr(card, prcd); qeth_configure_blkt_default(card, prcd); kfree(prcd); rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); if (rc) QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); out_offline: ccw_device_set_offline(CARD_DDEV(card)); out: return; } static int qeth_core_probe_device(struct ccwgroup_device *gdev) { struct qeth_card *card; struct device *dev; int rc; unsigned long flags; char dbf_name[20]; QETH_DBF_TEXT(SETUP, 2, "probedev"); dev = &gdev->dev; if (!get_device(dev)) return -ENODEV; QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); card = qeth_alloc_card(); if (!card) { QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); rc = -ENOMEM; goto err_dev; } snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", dev_name(&gdev->dev)); card->debug = debug_register(dbf_name, 2, 1, 8); if (!card->debug) { QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); rc = -ENOMEM; goto err_card; } debug_register_view(card->debug, &debug_hex_ascii_view); card->read.ccwdev = gdev->cdev[0]; card->write.ccwdev = gdev->cdev[1]; card->data.ccwdev = gdev->cdev[2]; dev_set_drvdata(&gdev->dev, card); card->gdev = gdev; gdev->cdev[0]->handler = qeth_irq; gdev->cdev[1]->handler = qeth_irq; gdev->cdev[2]->handler = qeth_irq; rc = qeth_determine_card_type(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); goto err_dbf; } rc = qeth_setup_card(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); goto err_dbf; } if (card->info.type == QETH_CARD_TYPE_OSN) rc = qeth_core_create_osn_attributes(dev); else rc = qeth_core_create_device_attributes(dev); if (rc) goto err_dbf; switch (card->info.type) { case QETH_CARD_TYPE_OSN: case QETH_CARD_TYPE_OSM: rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); if (rc) goto err_attr; rc = card->discipline.ccwgdriver->probe(card->gdev); if (rc) goto err_disc; case QETH_CARD_TYPE_OSD: case QETH_CARD_TYPE_OSX: default: break; } write_lock_irqsave(&qeth_core_card_list.rwlock, flags); list_add_tail(&card->list, &qeth_core_card_list.list); write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); qeth_determine_capabilities(card); return 0; err_disc: qeth_core_free_discipline(card); err_attr: if (card->info.type == QETH_CARD_TYPE_OSN) qeth_core_remove_osn_attributes(dev); else qeth_core_remove_device_attributes(dev); err_dbf: debug_unregister(card->debug); err_card: qeth_core_free_card(card); err_dev: put_device(dev); return rc; } static void qeth_core_remove_device(struct ccwgroup_device *gdev) { unsigned long flags; struct qeth_card *card = dev_get_drvdata(&gdev->dev); QETH_DBF_TEXT(SETUP, 2, "removedv"); if (card->info.type == QETH_CARD_TYPE_OSN) { qeth_core_remove_osn_attributes(&gdev->dev); } else { qeth_core_remove_device_attributes(&gdev->dev); } if (card->discipline.ccwgdriver) { card->discipline.ccwgdriver->remove(gdev); qeth_core_free_discipline(card); } debug_unregister(card->debug); write_lock_irqsave(&qeth_core_card_list.rwlock, flags); list_del(&card->list); write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); qeth_core_free_card(card); dev_set_drvdata(&gdev->dev, NULL); put_device(&gdev->dev); return; } static int qeth_core_set_online(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); int rc = 0; int def_discipline; if (!card->discipline.ccwgdriver) { if (card->info.type == QETH_CARD_TYPE_IQD) def_discipline = QETH_DISCIPLINE_LAYER3; else def_discipline = QETH_DISCIPLINE_LAYER2; rc = qeth_core_load_discipline(card, def_discipline); if (rc) goto err; rc = card->discipline.ccwgdriver->probe(card->gdev); if (rc) goto err; } rc = card->discipline.ccwgdriver->set_online(gdev); err: return rc; } static int qeth_core_set_offline(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); return card->discipline.ccwgdriver->set_offline(gdev); } static void qeth_core_shutdown(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); if (card->discipline.ccwgdriver && card->discipline.ccwgdriver->shutdown) card->discipline.ccwgdriver->shutdown(gdev); } static int qeth_core_prepare(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); if (card->discipline.ccwgdriver && card->discipline.ccwgdriver->prepare) return card->discipline.ccwgdriver->prepare(gdev); return 0; } static void qeth_core_complete(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); if (card->discipline.ccwgdriver && card->discipline.ccwgdriver->complete) card->discipline.ccwgdriver->complete(gdev); } static int qeth_core_freeze(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); if (card->discipline.ccwgdriver && card->discipline.ccwgdriver->freeze) return card->discipline.ccwgdriver->freeze(gdev); return 0; } static int qeth_core_thaw(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); if (card->discipline.ccwgdriver && card->discipline.ccwgdriver->thaw) return card->discipline.ccwgdriver->thaw(gdev); return 0; } static int qeth_core_restore(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); if (card->discipline.ccwgdriver && card->discipline.ccwgdriver->restore) return card->discipline.ccwgdriver->restore(gdev); return 0; } static struct ccwgroup_driver qeth_core_ccwgroup_driver = { .owner = THIS_MODULE, .name = "qeth", .driver_id = 0xD8C5E3C8, .probe = qeth_core_probe_device, .remove = qeth_core_remove_device, .set_online = qeth_core_set_online, .set_offline = qeth_core_set_offline, .shutdown = qeth_core_shutdown, .prepare = qeth_core_prepare, .complete = qeth_core_complete, .freeze = qeth_core_freeze, .thaw = qeth_core_thaw, .restore = qeth_core_restore, }; static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, size_t count) { int err; err = qeth_core_driver_group(buf, qeth_core_root_dev, qeth_core_ccwgroup_driver.driver_id); if (err) return err; else return count; } static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); static struct { const char str[ETH_GSTRING_LEN]; } qeth_ethtool_stats_keys[] = { /* 0 */{"rx skbs"}, {"rx buffers"}, {"tx skbs"}, {"tx buffers"}, {"tx skbs no packing"}, {"tx buffers no packing"}, {"tx skbs packing"}, {"tx buffers packing"}, {"tx sg skbs"}, {"tx sg frags"}, /* 10 */{"rx sg skbs"}, {"rx sg frags"}, {"rx sg page allocs"}, {"tx large kbytes"}, {"tx large count"}, {"tx pk state ch n->p"}, {"tx pk state ch p->n"}, {"tx pk watermark low"}, {"tx pk watermark high"}, {"queue 0 buffer usage"}, /* 20 */{"queue 1 buffer usage"}, {"queue 2 buffer usage"}, {"queue 3 buffer usage"}, {"rx poll time"}, {"rx poll count"}, {"rx do_QDIO time"}, {"rx do_QDIO count"}, {"tx handler time"}, {"tx handler count"}, {"tx time"}, /* 30 */{"tx count"}, {"tx do_QDIO time"}, {"tx do_QDIO count"}, {"tx csum"}, {"tx lin"}, }; int qeth_core_get_sset_count(struct net_device *dev, int stringset) { switch (stringset) { case ETH_SS_STATS: return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); default: return -EINVAL; } } EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); void qeth_core_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) { struct qeth_card *card = dev->ml_priv; data[0] = card->stats.rx_packets - card->perf_stats.initial_rx_packets; data[1] = card->perf_stats.bufs_rec; data[2] = card->stats.tx_packets - card->perf_stats.initial_tx_packets; data[3] = card->perf_stats.bufs_sent; data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets - card->perf_stats.skbs_sent_pack; data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; data[6] = card->perf_stats.skbs_sent_pack; data[7] = card->perf_stats.bufs_sent_pack; data[8] = card->perf_stats.sg_skbs_sent; data[9] = card->perf_stats.sg_frags_sent; data[10] = card->perf_stats.sg_skbs_rx; data[11] = card->perf_stats.sg_frags_rx; data[12] = card->perf_stats.sg_alloc_page_rx; data[13] = (card->perf_stats.large_send_bytes >> 10); data[14] = card->perf_stats.large_send_cnt; data[15] = card->perf_stats.sc_dp_p; data[16] = card->perf_stats.sc_p_dp; data[17] = QETH_LOW_WATERMARK_PACK; data[18] = QETH_HIGH_WATERMARK_PACK; data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); data[20] = (card->qdio.no_out_queues > 1) ? atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; data[21] = (card->qdio.no_out_queues > 2) ? atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; data[22] = (card->qdio.no_out_queues > 3) ? atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; data[23] = card->perf_stats.inbound_time; data[24] = card->perf_stats.inbound_cnt; data[25] = card->perf_stats.inbound_do_qdio_time; data[26] = card->perf_stats.inbound_do_qdio_cnt; data[27] = card->perf_stats.outbound_handler_time; data[28] = card->perf_stats.outbound_handler_cnt; data[29] = card->perf_stats.outbound_time; data[30] = card->perf_stats.outbound_cnt; data[31] = card->perf_stats.outbound_do_qdio_time; data[32] = card->perf_stats.outbound_do_qdio_cnt; data[33] = card->perf_stats.tx_csum; data[34] = card->perf_stats.tx_lin; } EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) { switch (stringset) { case ETH_SS_STATS: memcpy(data, &qeth_ethtool_stats_keys, sizeof(qeth_ethtool_stats_keys)); break; default: WARN_ON(1); break; } } EXPORT_SYMBOL_GPL(qeth_core_get_strings); void qeth_core_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct qeth_card *card = dev->ml_priv; if (card->options.layer2) strcpy(info->driver, "qeth_l2"); else strcpy(info->driver, "qeth_l3"); strcpy(info->version, "1.0"); strcpy(info->fw_version, card->info.mcl_level); sprintf(info->bus_info, "%s/%s/%s", CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); } EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); int qeth_core_ethtool_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) { struct qeth_card *card = netdev->ml_priv; enum qeth_link_types link_type; if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) link_type = QETH_LINK_TYPE_10GBIT_ETH; else link_type = card->info.link_type; ecmd->transceiver = XCVR_INTERNAL; ecmd->supported = SUPPORTED_Autoneg; ecmd->advertising = ADVERTISED_Autoneg; ecmd->duplex = DUPLEX_FULL; ecmd->autoneg = AUTONEG_ENABLE; switch (link_type) { case QETH_LINK_TYPE_FAST_ETH: case QETH_LINK_TYPE_LANE_ETH100: ecmd->supported |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_TP; ecmd->advertising |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | ADVERTISED_TP; ecmd->speed = SPEED_100; ecmd->port = PORT_TP; break; case QETH_LINK_TYPE_GBIT_ETH: case QETH_LINK_TYPE_LANE_ETH1000: ecmd->supported |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE; ecmd->advertising |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | ADVERTISED_FIBRE; ecmd->speed = SPEED_1000; ecmd->port = PORT_FIBRE; break; case QETH_LINK_TYPE_10GBIT_ETH: ecmd->supported |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full | SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE; ecmd->advertising |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE; ecmd->speed = SPEED_10000; ecmd->port = PORT_FIBRE; break; default: ecmd->supported |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_TP; ecmd->advertising |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_TP; ecmd->speed = SPEED_10; ecmd->port = PORT_TP; } return 0; } EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings); static int __init qeth_core_init(void) { int rc; pr_info("loading core functions\n"); INIT_LIST_HEAD(&qeth_core_card_list.list); rwlock_init(&qeth_core_card_list.rwlock); rc = qeth_register_dbf_views(); if (rc) goto out_err; rc = ccw_driver_register(&qeth_ccw_driver); if (rc) goto ccw_err; rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); if (rc) goto ccwgroup_err; rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, &driver_attr_group); if (rc) goto driver_err; qeth_core_root_dev = root_device_register("qeth"); rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; if (rc) goto register_err; qeth_core_header_cache = kmem_cache_create("qeth_hdr", sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); if (!qeth_core_header_cache) { rc = -ENOMEM; goto slab_err; } return 0; slab_err: root_device_unregister(qeth_core_root_dev); register_err: driver_remove_file(&qeth_core_ccwgroup_driver.driver, &driver_attr_group); driver_err: ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); ccwgroup_err: ccw_driver_unregister(&qeth_ccw_driver); ccw_err: QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc); qeth_unregister_dbf_views(); out_err: pr_err("Initializing the qeth device driver failed\n"); return rc; } static void __exit qeth_core_exit(void) { root_device_unregister(qeth_core_root_dev); driver_remove_file(&qeth_core_ccwgroup_driver.driver, &driver_attr_group); ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); ccw_driver_unregister(&qeth_ccw_driver); kmem_cache_destroy(qeth_core_header_cache); qeth_unregister_dbf_views(); pr_info("core functions removed\n"); } module_init(qeth_core_init); module_exit(qeth_core_exit); MODULE_AUTHOR("Frank Blaschka "); MODULE_DESCRIPTION("qeth core functions"); MODULE_LICENSE("GPL");