| /* |
| * Copyright IBM Corp. 2007, 2009 |
| * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
| * Frank Pavlic <fpavlic@de.ibm.com>, |
| * Thomas Spatzier <tspat@de.ibm.com>, |
| * Frank Blaschka <frank.blaschka@de.ibm.com> |
| */ |
| |
| #define KMSG_COMPONENT "qeth" |
| #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/string.h> |
| #include <linux/errno.h> |
| #include <linux/kernel.h> |
| #include <linux/ip.h> |
| #include <linux/tcp.h> |
| #include <linux/mii.h> |
| #include <linux/kthread.h> |
| #include <linux/slab.h> |
| #include <net/iucv/af_iucv.h> |
| |
| #include <asm/ebcdic.h> |
| #include <asm/io.h> |
| #include <asm/sysinfo.h> |
| #include <asm/compat.h> |
| |
| #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 kmem_cache *qeth_qdio_outbuf_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 struct mutex qeth_mod_mutex; |
| |
| 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 void qeth_free_qdio_buffers(struct qeth_card *); |
| static void qeth_notify_skbs(struct qeth_qdio_out_q *queue, |
| struct qeth_qdio_out_buffer *buf, |
| enum iucv_tx_notify notification); |
| static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf); |
| static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| struct qeth_qdio_out_buffer *buf, |
| enum qeth_qdio_buffer_states newbufstate); |
| static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int); |
| |
| static struct workqueue_struct *qeth_wq; |
| |
| static void qeth_close_dev_handler(struct work_struct *work) |
| { |
| struct qeth_card *card; |
| |
| card = container_of(work, struct qeth_card, close_dev_work); |
| QETH_CARD_TEXT(card, 2, "cldevhdl"); |
| rtnl_lock(); |
| dev_close(card->dev); |
| rtnl_unlock(); |
| ccwgroup_set_offline(card->gdev); |
| } |
| |
| void qeth_close_dev(struct qeth_card *card) |
| { |
| QETH_CARD_TEXT(card, 2, "cldevsubm"); |
| queue_work(qeth_wq, &card->close_dev_work); |
| } |
| EXPORT_SYMBOL_GPL(qeth_close_dev); |
| |
| 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 " Virtual NIC QDIO"; |
| case QETH_CARD_TYPE_IQD: |
| return " Virtual NIC Hiper"; |
| case QETH_CARD_TYPE_OSM: |
| return " Virtual NIC QDIO - OSM"; |
| case QETH_CARD_TYPE_OSX: |
| return " Virtual NIC 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 "Virt.NIC QDIO"; |
| case QETH_CARD_TYPE_IQD: |
| return "Virt.NIC Hiper"; |
| case QETH_CARD_TYPE_OSM: |
| return "Virt.NIC OSM"; |
| case QETH_CARD_TYPE_OSX: |
| return "Virt.NIC 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_recovery_task(struct qeth_card *card) |
| { |
| card->recovery_task = current; |
| } |
| EXPORT_SYMBOL_GPL(qeth_set_recovery_task); |
| |
| void qeth_clear_recovery_task(struct qeth_card *card) |
| { |
| card->recovery_task = NULL; |
| } |
| EXPORT_SYMBOL_GPL(qeth_clear_recovery_task); |
| |
| static bool qeth_is_recovery_task(const struct qeth_card *card) |
| { |
| return card->recovery_task == current; |
| } |
| |
| 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) |
| { |
| if (qeth_is_recovery_task(card)) |
| return 0; |
| 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 = kzalloc(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 inline int qeth_cq_init(struct qeth_card *card) |
| { |
| int rc; |
| |
| if (card->options.cq == QETH_CQ_ENABLED) { |
| QETH_DBF_TEXT(SETUP, 2, "cqinit"); |
| memset(card->qdio.c_q->qdio_bufs, 0, |
| QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| card->qdio.c_q->next_buf_to_init = 127; |
| rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, |
| card->qdio.no_in_queues - 1, 0, |
| 127); |
| if (rc) { |
| QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
| goto out; |
| } |
| } |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| static inline int qeth_alloc_cq(struct qeth_card *card) |
| { |
| int rc; |
| |
| if (card->options.cq == QETH_CQ_ENABLED) { |
| int i; |
| struct qdio_outbuf_state *outbuf_states; |
| |
| QETH_DBF_TEXT(SETUP, 2, "cqon"); |
| card->qdio.c_q = kzalloc(sizeof(struct qeth_qdio_q), |
| GFP_KERNEL); |
| if (!card->qdio.c_q) { |
| rc = -1; |
| goto kmsg_out; |
| } |
| QETH_DBF_HEX(SETUP, 2, &card->qdio.c_q, sizeof(void *)); |
| |
| for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
| card->qdio.c_q->bufs[i].buffer = |
| &card->qdio.c_q->qdio_bufs[i]; |
| } |
| |
| card->qdio.no_in_queues = 2; |
| |
| card->qdio.out_bufstates = (struct qdio_outbuf_state *) |
| kzalloc(card->qdio.no_out_queues * |
| QDIO_MAX_BUFFERS_PER_Q * |
| sizeof(struct qdio_outbuf_state), GFP_KERNEL); |
| outbuf_states = card->qdio.out_bufstates; |
| if (outbuf_states == NULL) { |
| rc = -1; |
| goto free_cq_out; |
| } |
| for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| card->qdio.out_qs[i]->bufstates = outbuf_states; |
| outbuf_states += QDIO_MAX_BUFFERS_PER_Q; |
| } |
| } else { |
| QETH_DBF_TEXT(SETUP, 2, "nocq"); |
| card->qdio.c_q = NULL; |
| card->qdio.no_in_queues = 1; |
| } |
| QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); |
| rc = 0; |
| out: |
| return rc; |
| free_cq_out: |
| kfree(card->qdio.c_q); |
| card->qdio.c_q = NULL; |
| kmsg_out: |
| dev_err(&card->gdev->dev, "Failed to create completion queue\n"); |
| goto out; |
| } |
| |
| static inline void qeth_free_cq(struct qeth_card *card) |
| { |
| if (card->qdio.c_q) { |
| --card->qdio.no_in_queues; |
| kfree(card->qdio.c_q); |
| card->qdio.c_q = NULL; |
| } |
| kfree(card->qdio.out_bufstates); |
| card->qdio.out_bufstates = NULL; |
| } |
| |
| static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, |
| int delayed) { |
| enum iucv_tx_notify n; |
| |
| switch (sbalf15) { |
| case 0: |
| n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK; |
| break; |
| case 4: |
| case 16: |
| case 17: |
| case 18: |
| n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE : |
| TX_NOTIFY_UNREACHABLE; |
| break; |
| default: |
| n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR : |
| TX_NOTIFY_GENERALERROR; |
| break; |
| } |
| |
| return n; |
| } |
| |
| static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, |
| int bidx, int forced_cleanup) |
| { |
| if (q->card->options.cq != QETH_CQ_ENABLED) |
| return; |
| |
| if (q->bufs[bidx]->next_pending != NULL) { |
| struct qeth_qdio_out_buffer *head = q->bufs[bidx]; |
| struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; |
| |
| while (c) { |
| if (forced_cleanup || |
| atomic_read(&c->state) == |
| QETH_QDIO_BUF_HANDLED_DELAYED) { |
| struct qeth_qdio_out_buffer *f = c; |
| QETH_CARD_TEXT(f->q->card, 5, "fp"); |
| QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); |
| /* release here to avoid interleaving between |
| outbound tasklet and inbound tasklet |
| regarding notifications and lifecycle */ |
| qeth_release_skbs(c); |
| |
| c = f->next_pending; |
| WARN_ON_ONCE(head->next_pending != f); |
| head->next_pending = c; |
| kmem_cache_free(qeth_qdio_outbuf_cache, f); |
| } else { |
| head = c; |
| c = c->next_pending; |
| } |
| |
| } |
| } |
| if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) == |
| QETH_QDIO_BUF_HANDLED_DELAYED)) { |
| /* for recovery situations */ |
| q->bufs[bidx]->aob = q->bufstates[bidx].aob; |
| qeth_init_qdio_out_buf(q, bidx); |
| QETH_CARD_TEXT(q->card, 2, "clprecov"); |
| } |
| } |
| |
| |
| static inline void qeth_qdio_handle_aob(struct qeth_card *card, |
| unsigned long phys_aob_addr) { |
| struct qaob *aob; |
| struct qeth_qdio_out_buffer *buffer; |
| enum iucv_tx_notify notification; |
| |
| aob = (struct qaob *) phys_to_virt(phys_aob_addr); |
| QETH_CARD_TEXT(card, 5, "haob"); |
| QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); |
| buffer = (struct qeth_qdio_out_buffer *) aob->user1; |
| QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); |
| |
| if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED, |
| QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) { |
| notification = TX_NOTIFY_OK; |
| } else { |
| WARN_ON_ONCE(atomic_read(&buffer->state) != |
| QETH_QDIO_BUF_PENDING); |
| atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ); |
| notification = TX_NOTIFY_DELAYED_OK; |
| } |
| |
| if (aob->aorc != 0) { |
| QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc); |
| notification = qeth_compute_cq_notification(aob->aorc, 1); |
| } |
| qeth_notify_skbs(buffer->q, buffer, notification); |
| |
| buffer->aob = NULL; |
| qeth_clear_output_buffer(buffer->q, buffer, |
| QETH_QDIO_BUF_HANDLED_DELAYED); |
| |
| /* from here on: do not touch buffer anymore */ |
| qdio_release_aob(aob); |
| } |
| |
| static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) |
| { |
| return card->options.cq == QETH_CQ_ENABLED && |
| card->qdio.c_q != NULL && |
| queue != 0 && |
| queue == card->qdio.no_in_queues - 1; |
| } |
| |
| |
| 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/%s returned " |
| "x%X \"%s\"\n", |
| ipa_name, com, dev_name(&card->gdev->dev), |
| QETH_CARD_IFNAME(card), rc, |
| qeth_get_ipa_msg(rc)); |
| else |
| QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n", |
| ipa_name, com, dev_name(&card->gdev->dev), |
| 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: |
| if (cmd->hdr.return_code == |
| IPA_RC_VEPA_TO_VEB_TRANSITION) { |
| dev_err(&card->gdev->dev, |
| "Interface %s is down because the " |
| "adjacent port is no longer in " |
| "reflective relay mode\n", |
| QETH_CARD_IFNAME(card)); |
| qeth_close_dev(card); |
| } else { |
| dev_warn(&card->gdev->dev, |
| "The link for interface %s on CHPID" |
| " 0x%X failed\n", |
| QETH_CARD_IFNAME(card), |
| card->info.chpid); |
| qeth_issue_ipa_msg(cmd, |
| cmd->hdr.return_code, card); |
| } |
| 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; |
| if (card->info.hwtrap) |
| card->info.hwtrap = 2; |
| 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); |
| wake_up(&channel->wait_q); |
| } |
| 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 = |
| kzalloc(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_notify_skbs(struct qeth_qdio_out_q *q, |
| struct qeth_qdio_out_buffer *buf, |
| enum iucv_tx_notify notification) |
| { |
| struct sk_buff *skb; |
| |
| if (skb_queue_empty(&buf->skb_list)) |
| goto out; |
| skb = skb_peek(&buf->skb_list); |
| while (skb) { |
| QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); |
| QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); |
| if (skb->protocol == ETH_P_AF_IUCV) { |
| if (skb->sk) { |
| struct iucv_sock *iucv = iucv_sk(skb->sk); |
| iucv->sk_txnotify(skb, notification); |
| } |
| } |
| if (skb_queue_is_last(&buf->skb_list, skb)) |
| skb = NULL; |
| else |
| skb = skb_queue_next(&buf->skb_list, skb); |
| } |
| out: |
| return; |
| } |
| |
| static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) |
| { |
| struct sk_buff *skb; |
| struct iucv_sock *iucv; |
| int notify_general_error = 0; |
| |
| if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) |
| notify_general_error = 1; |
| |
| /* release may never happen from within CQ tasklet scope */ |
| WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); |
| |
| skb = skb_dequeue(&buf->skb_list); |
| while (skb) { |
| QETH_CARD_TEXT(buf->q->card, 5, "skbr"); |
| QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb); |
| if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) { |
| if (skb->sk) { |
| iucv = iucv_sk(skb->sk); |
| iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR); |
| } |
| } |
| atomic_dec(&skb->users); |
| dev_kfree_skb_any(skb); |
| skb = skb_dequeue(&buf->skb_list); |
| } |
| } |
| |
| static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| struct qeth_qdio_out_buffer *buf, |
| enum qeth_qdio_buffer_states newbufstate) |
| { |
| int i; |
| |
| /* is PCI flag set on buffer? */ |
| if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) |
| atomic_dec(&queue->set_pci_flags_count); |
| |
| if (newbufstate == QETH_QDIO_BUF_EMPTY) { |
| qeth_release_skbs(buf); |
| } |
| 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].eflags = 0; |
| buf->buffer->element[i].sflags = 0; |
| } |
| buf->buffer->element[15].eflags = 0; |
| buf->buffer->element[15].sflags = 0; |
| buf->next_element_to_fill = 0; |
| atomic_set(&buf->state, newbufstate); |
| } |
| |
| static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) |
| { |
| int j; |
| |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| if (!q->bufs[j]) |
| continue; |
| qeth_cleanup_handled_pending(q, j, 1); |
| qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY); |
| if (free) { |
| kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); |
| q->bufs[j] = NULL; |
| } |
| } |
| } |
| |
| void qeth_clear_qdio_buffers(struct qeth_card *card) |
| { |
| int i; |
| |
| 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]) { |
| qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); |
| } |
| } |
| } |
| 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; |
| |
| qeth_free_cq(card); |
| cancel_delayed_work_sync(&card->buffer_reclaim_work); |
| for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); |
| 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) { |
| qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); |
| 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_set_single_write_queues(struct qeth_card *card) |
| { |
| if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && |
| (card->qdio.no_out_queues == 4)) |
| qeth_free_qdio_buffers(card); |
| |
| card->qdio.no_out_queues = 1; |
| if (card->qdio.default_out_queue != 0) |
| dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); |
| |
| card->qdio.default_out_queue = 0; |
| } |
| |
| static void qeth_set_multiple_write_queues(struct qeth_card *card) |
| { |
| if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && |
| (card->qdio.no_out_queues == 1)) { |
| qeth_free_qdio_buffers(card); |
| card->qdio.default_out_queue = 2; |
| } |
| card->qdio.no_out_queues = 4; |
| } |
| |
| static void qeth_update_from_chp_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 = ccw_device_get_chp_desc(ccwdev, 0); |
| if (!chp_dsc) |
| goto out; |
| |
| card->info.func_level = 0x4100 + chp_dsc->desc; |
| if (card->info.type == QETH_CARD_TYPE_IQD) |
| goto out; |
| |
| /* CHPP field bit 6 == 1 -> single queue */ |
| if ((chp_dsc->chpp & 0x02) == 0x02) |
| qeth_set_single_write_queues(card); |
| else |
| qeth_set_multiple_write_queues(card); |
| out: |
| kfree(chp_dsc); |
| QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); |
| QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); |
| } |
| |
| 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; |
| if (card->info.type == QETH_CARD_TYPE_IQD) |
| card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; |
| else |
| 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.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; |
| card->options.cq = QETH_CQ_DISABLED; |
| } |
| |
| 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 task_struct *ts; |
| 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)) { |
| ts = kthread_run(card->discipline->recover, (void *)card, |
| "qeth_recover"); |
| if (IS_ERR(ts)) { |
| qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
| qeth_clear_thread_running_bit(card, |
| QETH_RECOVER_THREAD); |
| } |
| } |
| } |
| |
| 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->read_or_write_problem = 0; |
| card->dev = NULL; |
| spin_lock_init(&card->vlanlock); |
| spin_lock_init(&card->mclock); |
| 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); |
| /* initial 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); |
| INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); |
| INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); |
| 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 = kzalloc(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->qdio.no_in_queues = 1; |
| card->info.is_multicast_different = |
| known_devices[i][QETH_MULTICAST_IND]; |
| qeth_update_from_chp_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 || prcd[76] == 0xF6)) { |
| 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(); |
| } |
| } |
| |
| if (reply->rc == -EIO) |
| goto error; |
| rc = reply->rc; |
| qeth_put_reply(reply); |
| return rc; |
| |
| time_err: |
| reply->rc = -ETIME; |
| spin_lock_irqsave(&reply->card->lock, flags); |
| list_del_init(&reply->list); |
| spin_unlock_irqrestore(&reply->card->lock, flags); |
| atomic_inc(&reply->received); |
| error: |
| 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; |
| 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_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: |
| case QETH_CARD_TYPE_IQD: |
| return ((mtu >= 576) && |
| (mtu <= card->info.max_mtu)); |
| 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 (card->info.type == QETH_CARD_TYPE_IQD) { |
| 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; |
| } |
| if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) { |
| /* frame size has changed */ |
| if (card->dev && |
| ((card->dev->mtu == card->info.initial_mtu) || |
| (card->dev->mtu > mtu))) |
| card->dev->mtu = mtu; |
| qeth_free_qdio_buffers(card); |
| } |
| card->info.initial_mtu = mtu; |
| card->info.max_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 = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU( |
| iob->data); |
| 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; |
| |
| 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 0; |
| } |
| |
| static int qeth_ulp_setup(struct qeth_card *card) |
| { |
| int rc; |
| __u16 temp; |
| struct qeth_cmd_buffer *iob; |
| struct ccw_dev_id dev_id; |
| |
| QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
| |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); |
| |
| memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), |
| &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), |
| &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); |
| memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), |
| &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); |
| |
| ccw_device_get_id(CARD_DDEV(card), &dev_id); |
| memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); |
| temp = (card->info.cula << 8) + card->info.unit_addr2; |
| memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); |
| rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, |
| qeth_ulp_setup_cb, NULL); |
| return rc; |
| } |
| |
| static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) |
| { |
| int rc; |
| struct qeth_qdio_out_buffer *newbuf; |
| |
| rc = 0; |
| newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); |
| if (!newbuf) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| newbuf->buffer = &q->qdio_bufs[bidx]; |
| skb_queue_head_init(&newbuf->skb_list); |
| lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); |
| newbuf->q = q; |
| newbuf->aob = NULL; |
| newbuf->next_pending = q->bufs[bidx]; |
| atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); |
| q->bufs[bidx] = newbuf; |
| if (q->bufstates) { |
| q->bufstates[bidx].user = newbuf; |
| QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx); |
| QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf); |
| QETH_CARD_TEXT_(q->card, 2, "%lx", |
| (long) newbuf->next_pending); |
| } |
| out: |
| 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 = kzalloc(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]; |
| card->qdio.in_q->bufs[i].rx_skb = NULL; |
| } |
| /* inbound buffer pool */ |
| if (qeth_alloc_buffer_pool(card)) |
| goto out_freeinq; |
| |
| /* outbound */ |
| card->qdio.out_qs = |
| kzalloc(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] = kzalloc(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 *)); |
| 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) { |
| WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); |
| if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) |
| goto out_freeoutqbufs; |
| } |
| } |
| |
| /* completion */ |
| if (qeth_alloc_cq(card)) |
| goto out_freeoutq; |
| |
| return 0; |
| |
| out_freeoutqbufs: |
| while (j > 0) { |
| --j; |
| kmem_cache_free(qeth_qdio_outbuf_cache, |
| card->qdio.out_qs[i]->bufs[j]); |
| card->qdio.out_qs[i]->bufs[j] = NULL; |
| } |
| out_freeoutq: |
| while (i > 0) { |
| kfree(card->qdio.out_qs[--i]); |
| qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); |
| } |
| 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; |
| |
| if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { |
| buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN); |
| if (!buf->rx_skb) |
| return 1; |
| } |
| |
| 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].eflags = SBAL_EFLAGS_LAST_ENTRY; |
| else |
| buf->buffer->element[i].eflags = 0; |
| buf->buffer->element[i].sflags = 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; |
| } |
| |
| /* completion */ |
| rc = qeth_cq_init(card); |
| if (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], |
| QETH_QDIO_BUF_EMPTY); |
| } |
| 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); |
| |
| int qeth_send_startlan(struct qeth_card *card) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
| |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); |
| rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| return rc; |
| } |
| EXPORT_SYMBOL_GPL(qeth_send_startlan); |
| |
| static 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; |
| } |
| |
| 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); |
| } |
| |
| static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, |
| __u32 command, __u32 cmdlen) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, |
| QETH_PROT_IPV4); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setadapterparms.hdr.cmdlength = cmdlen; |
| cmd->data.setadapterparms.hdr.command_code = command; |
| cmd->data.setadapterparms.hdr.used_total = 1; |
| cmd->data.setadapterparms.hdr.seq_no = 1; |
| |
| return iob; |
| } |
| |
| 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); |
| |
| static int qeth_query_ipassists_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(SETUP, 2, "qipasscb"); |
| |
| cmd = (struct qeth_ipa_cmd *) data; |
| |
| switch (cmd->hdr.return_code) { |
| case IPA_RC_NOTSUPP: |
| case IPA_RC_L2_UNSUPPORTED_CMD: |
| QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); |
| card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; |
| card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; |
| return -0; |
| default: |
| if (cmd->hdr.return_code) { |
| QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled " |
| "rc=%d\n", |
| dev_name(&card->gdev->dev), |
| cmd->hdr.return_code); |
| return 0; |
| } |
| } |
| |
| if (cmd->hdr.prot_version == QETH_PROT_IPV4) { |
| card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; |
| card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; |
| } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { |
| card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; |
| card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; |
| } else |
| QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected" |
| "\n", dev_name(&card->gdev->dev)); |
| return 0; |
| } |
| |
| int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot) |
| { |
| int rc; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); |
| rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); |
| return rc; |
| } |
| EXPORT_SYMBOL_GPL(qeth_query_ipassists); |
| |
| static int qeth_query_setdiagass_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| __u16 rc; |
| |
| cmd = (struct qeth_ipa_cmd *)data; |
| rc = cmd->hdr.return_code; |
| if (rc) |
| QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); |
| else |
| card->info.diagass_support = cmd->data.diagass.ext; |
| return 0; |
| } |
| |
| static int qeth_query_setdiagass(struct qeth_card *card) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(SETUP, 2, "qdiagass"); |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.diagass.subcmd_len = 16; |
| cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; |
| return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); |
| } |
| |
| static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) |
| { |
| unsigned long info = get_zeroed_page(GFP_KERNEL); |
| struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; |
| struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; |
| struct ccw_dev_id ccwid; |
| int level; |
| |
| tid->chpid = card->info.chpid; |
| ccw_device_get_id(CARD_RDEV(card), &ccwid); |
| tid->ssid = ccwid.ssid; |
| tid->devno = ccwid.devno; |
| if (!info) |
| return; |
| level = stsi(NULL, 0, 0, 0); |
| if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) |
| tid->lparnr = info222->lpar_number; |
| if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { |
| EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); |
| memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); |
| } |
| free_page(info); |
| return; |
| } |
| |
| static int qeth_hw_trap_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| __u16 rc; |
| |
| cmd = (struct qeth_ipa_cmd *)data; |
| rc = cmd->hdr.return_code; |
| if (rc) |
| QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); |
| return 0; |
| } |
| |
| int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(SETUP, 2, "diagtrap"); |
| iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.diagass.subcmd_len = 80; |
| cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; |
| cmd->data.diagass.type = 1; |
| cmd->data.diagass.action = action; |
| switch (action) { |
| case QETH_DIAGS_TRAP_ARM: |
| cmd->data.diagass.options = 0x0003; |
| cmd->data.diagass.ext = 0x00010000 + |
| sizeof(struct qeth_trap_id); |
| qeth_get_trap_id(card, |
| (struct qeth_trap_id *)cmd->data.diagass.cdata); |
| break; |
| case QETH_DIAGS_TRAP_DISARM: |
| cmd->data.diagass.options = 0x0001; |
| break; |
| case QETH_DIAGS_TRAP_CAPTURE: |
| break; |
| } |
| return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); |
| } |
| EXPORT_SYMBOL_GPL(qeth_hw_trap); |
| |
| 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].sflags); |
| QETH_CARD_TEXT_(card, 2, " F14=%02X", |
| buf->element[14].sflags); |
| QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); |
| if ((buf->element[15].sflags) == 0x12) { |
| card->stats.rx_dropped++; |
| return 0; |
| } else |
| return 1; |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); |
| |
| void qeth_buffer_reclaim_work(struct work_struct *work) |
| { |
| struct qeth_card *card = container_of(work, struct qeth_card, |
| buffer_reclaim_work.work); |
| |
| QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); |
| qeth_queue_input_buffer(card, card->reclaim_index); |
| } |
| |
| void qeth_queue_input_buffer(struct qeth_card *card, int index) |
| { |
| struct qeth_qdio_q *queue = card->qdio.in_q; |
| struct list_head *lh; |
| 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); |
| } |
| |
| if (!count) { |
| i = 0; |
| list_for_each(lh, &card->qdio.in_buf_pool.entry_list) |
| i++; |
| if (i == card->qdio.in_buf_pool.buf_count) { |
| QETH_CARD_TEXT(card, 2, "qsarbw"); |
| card->reclaim_index = index; |
| schedule_delayed_work( |
| &card->buffer_reclaim_work, |
| QETH_RECLAIM_WORK_TIME); |
| } |
| return; |
| } |
| |
| /* |
| * 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) { |
| 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].sflags; |
| |
| 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) { |
| int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
| buf = queue->bufs[bidx]; |
| buf->buffer->element[buf->next_element_to_fill - 1].eflags |= |
| SBAL_EFLAGS_LAST_ENTRY; |
| |
| if (queue->bufstates) |
| queue->bufstates[bidx].user = buf; |
| |
| 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].sflags |= SBAL_SFLAGS0_PCI_REQ; |
| } |
| } 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].sflags |= SBAL_SFLAGS0_PCI_REQ; |
| } |
| } |
| } |
| |
| 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; |
| atomic_add(count, &queue->used_buffers); |
| if (rc) { |
| queue->card->stats.tx_errors += count; |
| /* ignore temporary SIGA errors without busy condition */ |
| if (rc == -ENOBUFS) |
| return; |
| QETH_CARD_TEXT(queue->card, 2, "flushbuf"); |
| QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); |
| QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); |
| QETH_CARD_TEXT_(queue->card, 2, " c%d", count); |
| 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; |
| } |
| 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 && (card->dev->flags & IFF_UP)) |
| napi_schedule(&card->napi); |
| } |
| EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); |
| |
| int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) |
| { |
| int rc; |
| |
| if (card->options.cq == QETH_CQ_NOTAVAILABLE) { |
| rc = -1; |
| goto out; |
| } else { |
| if (card->options.cq == cq) { |
| rc = 0; |
| goto out; |
| } |
| |
| if (card->state != CARD_STATE_DOWN && |
| card->state != CARD_STATE_RECOVER) { |
| rc = -1; |
| goto out; |
| } |
| |
| qeth_free_qdio_buffers(card); |
| card->options.cq = cq; |
| rc = 0; |
| } |
| out: |
| return rc; |
| |
| } |
| EXPORT_SYMBOL_GPL(qeth_configure_cq); |
| |
| |
| static void qeth_qdio_cq_handler(struct qeth_card *card, |
| unsigned int qdio_err, |
| unsigned int queue, int first_element, int count) { |
| struct qeth_qdio_q *cq = card->qdio.c_q; |
| int i; |
| int rc; |
| |
| if (!qeth_is_cq(card, queue)) |
| goto out; |
| |
| QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); |
| QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); |
| QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); |
| |
| if (qdio_err) { |
| netif_stop_queue(card->dev); |
| qeth_schedule_recovery(card); |
| goto out; |
| } |
| |
| if (card->options.performance_stats) { |
| card->perf_stats.cq_cnt++; |
| card->perf_stats.cq_start_time = qeth_get_micros(); |
| } |
| |
| for (i = first_element; i < first_element + count; ++i) { |
| int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
| struct qdio_buffer *buffer = &cq->qdio_bufs[bidx]; |
| int e; |
| |
| e = 0; |
| while (buffer->element[e].addr) { |
| unsigned long phys_aob_addr; |
| |
| phys_aob_addr = (unsigned long) buffer->element[e].addr; |
| qeth_qdio_handle_aob(card, phys_aob_addr); |
| buffer->element[e].addr = NULL; |
| buffer->element[e].eflags = 0; |
| buffer->element[e].sflags = 0; |
| buffer->element[e].length = 0; |
| |
| ++e; |
| } |
| |
| buffer->element[15].eflags = 0; |
| buffer->element[15].sflags = 0; |
| } |
| rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, |
| card->qdio.c_q->next_buf_to_init, |
| count); |
| if (rc) { |
| dev_warn(&card->gdev->dev, |
| "QDIO reported an error, rc=%i\n", rc); |
| QETH_CARD_TEXT(card, 2, "qcqherr"); |
| } |
| card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init |
| + count) % QDIO_MAX_BUFFERS_PER_Q; |
| |
| netif_wake_queue(card->dev); |
| |
| if (card->options.performance_stats) { |
| int delta_t = qeth_get_micros(); |
| delta_t -= card->perf_stats.cq_start_time; |
| card->perf_stats.cq_time += delta_t; |
| } |
| out: |
| return; |
| } |
| |
| void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, |
| unsigned int queue, int first_elem, int count, |
| unsigned long card_ptr) |
| { |
| struct qeth_card *card = (struct qeth_card *)card_ptr; |
| |
| QETH_CARD_TEXT_(card, 2, "qihq%d", queue); |
| QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); |
| |
| if (qeth_is_cq(card, queue)) |
| qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); |
| else 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_FATAL) { |
| 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) { |
| int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
| buffer = queue->bufs[bidx]; |
| qeth_handle_send_error(card, buffer, qdio_error); |
| |
| if (queue->bufstates && |
| (queue->bufstates[bidx].flags & |
| QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { |
| WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); |
| |
| if (atomic_cmpxchg(&buffer->state, |
| QETH_QDIO_BUF_PRIMED, |
| QETH_QDIO_BUF_PENDING) == |
| QETH_QDIO_BUF_PRIMED) { |
| qeth_notify_skbs(queue, buffer, |
| TX_NOTIFY_PENDING); |
| } |
| buffer->aob = queue->bufstates[bidx].aob; |
| QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); |
| QETH_CARD_TEXT(queue->card, 5, "aob"); |
| QETH_CARD_TEXT_(queue->card, 5, "%lx", |
| virt_to_phys(buffer->aob)); |
| if (qeth_init_qdio_out_buf(queue, bidx)) { |
| QETH_CARD_TEXT(card, 2, "outofbuf"); |
| qeth_schedule_recovery(card); |
| } |
| } else { |
| if (card->options.cq == QETH_CQ_ENABLED) { |
| enum iucv_tx_notify n; |
| |
| n = qeth_compute_cq_notification( |
| buffer->buffer->element[15].sflags, 0); |
| qeth_notify_skbs(queue, buffer, n); |
| } |
| |
| qeth_clear_output_buffer(queue, buffer, |
| QETH_QDIO_BUF_EMPTY); |
| } |
| qeth_cleanup_handled_pending(queue, bidx, 0); |
| } |
| 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_for_frags(struct sk_buff *skb) |
| { |
| int cnt, length, e, elements = 0; |
| struct skb_frag_struct *frag; |
| char *data; |
| |
| for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { |
| frag = &skb_shinfo(skb)->frags[cnt]; |
| data = (char *)page_to_phys(skb_frag_page(frag)) + |
| frag->page_offset; |
| length = frag->size; |
| e = PFN_UP((unsigned long)data + length - 1) - |
| PFN_DOWN((unsigned long)data); |
| elements += e; |
| } |
| return elements; |
| } |
| EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); |
| |
| 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 += qeth_get_elements_for_frags(skb); |
| |
| 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].eflags = |
| SBAL_EFLAGS_FIRST_FRAG; |
| else |
| buffer->element[element].eflags = 0; |
| else |
| buffer->element[element].eflags = |
| SBAL_EFLAGS_MIDDLE_FRAG; |
| } else { |
| if (first_lap) |
| buffer->element[element].eflags = |
| SBAL_EFLAGS_FIRST_FRAG; |
| else |
| buffer->element[element].eflags = |
| SBAL_EFLAGS_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]; |
| data = (char *)page_to_phys(skb_frag_page(frag)) + |
| frag->page_offset; |
| length = frag->size; |
| while (length > 0) { |
| 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; |
| buffer->element[element].eflags = |
| SBAL_EFLAGS_MIDDLE_FRAG; |
| length -= length_here; |
| data += length_here; |
| element++; |
| } |
| } |
| |
| if (buffer->element[element - 1].eflags) |
| buffer->element[element - 1].eflags = SBAL_EFLAGS_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].eflags = SBAL_EFLAGS_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].eflags = SBAL_EFLAGS_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; |
| int fallback = *(int *)reply->param; |
| |
| 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); |
| if (cmd->data.setadapterparms.hdr.return_code != |
| SET_ACCESS_CTRL_RC_SUCCESS) |
| 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); |
| switch (cmd->data.setadapterparms.hdr.return_code) { |
| case SET_ACCESS_CTRL_RC_SUCCESS: |
| 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"); |
| } |
| break; |
| case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: |
| QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already " |
| "deactivated\n", dev_name(&card->gdev->dev)); |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| break; |
| case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: |
| QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already" |
| " activated\n", dev_name(&card->gdev->dev)); |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| break; |
| case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: |
| dev_err(&card->gdev->dev, "Adapter does not " |
| "support QDIO data connection isolation\n"); |
| break; |
| case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: |
| dev_err(&card->gdev->dev, |
| "Adapter is dedicated. " |
| "QDIO data connection isolation not supported\n"); |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| break; |
| case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: |
| dev_err(&card->gdev->dev, |
| "TSO does not permit QDIO data connection isolation\n"); |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| break; |
| case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: |
| dev_err(&card->gdev->dev, "The adjacent switch port does not " |
| "support reflective relay mode\n"); |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| break; |
| case SET_ACCESS_CTRL_RC_REFLREL_FAILED: |
| dev_err(&card->gdev->dev, "The reflective relay mode cannot be " |
| "enabled at the adjacent switch port"); |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| break; |
| case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: |
| dev_warn(&card->gdev->dev, "Turning off reflective relay mode " |
| "at the adjacent switch failed\n"); |
| break; |
| default: |
| /* this should never happen */ |
| if (fallback) |
| card->options.isolation = card->options.prev_isolation; |
| 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 fallback) |
| { |
| 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, |
| &fallback); |
| QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); |
| return rc; |
| } |
| |
| int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) |
| { |
| 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, fallback); |
| if (rc) { |
| QETH_DBF_MESSAGE(3, |
| "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", |
| card->gdev->dev.kobj.name, |
| rc); |
| rc = -EOPNOTSUPP; |
| } |
| } 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 = IPA_RC_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 int qeth_setadpparms_query_oat_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_qoat_priv *priv; |
| char *resdata; |
| int resdatalen; |
| |
| QETH_CARD_TEXT(card, 3, "qoatcb"); |
| |
| cmd = (struct qeth_ipa_cmd *)data; |
| priv = (struct qeth_qoat_priv *)reply->param; |
| resdatalen = cmd->data.setadapterparms.hdr.cmdlength; |
| resdata = (char *)data + 28; |
| |
| if (resdatalen > (priv->buffer_len - priv->response_len)) { |
| cmd->hdr.return_code = IPA_RC_FFFF; |
| return 0; |
| } |
| |
| memcpy((priv->buffer + priv->response_len), resdata, |
| resdatalen); |
| priv->response_len += resdatalen; |
| |
| if (cmd->data.setadapterparms.hdr.seq_no < |
| cmd->data.setadapterparms.hdr.used_total) |
| return 1; |
| return 0; |
| } |
| |
| int qeth_query_oat_command(struct qeth_card *card, char __user *udata) |
| { |
| int rc = 0; |
| struct qeth_cmd_buffer *iob; |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_query_oat *oat_req; |
| struct qeth_query_oat_data oat_data; |
| struct qeth_qoat_priv priv; |
| void __user *tmp; |
| |
| QETH_CARD_TEXT(card, 3, "qoatcmd"); |
| |
| if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { |
| rc = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| if (copy_from_user(&oat_data, udata, |
| sizeof(struct qeth_query_oat_data))) { |
| rc = -EFAULT; |
| goto out; |
| } |
| |
| priv.buffer_len = oat_data.buffer_len; |
| priv.response_len = 0; |
| priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL); |
| if (!priv.buffer) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| |
| iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, |
| sizeof(struct qeth_ipacmd_setadpparms_hdr) + |
| sizeof(struct qeth_query_oat)); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| oat_req = &cmd->data.setadapterparms.data.query_oat; |
| oat_req->subcmd_code = oat_data.command; |
| |
| rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, |
| &priv); |
| if (!rc) { |
| if (is_compat_task()) |
| tmp = compat_ptr(oat_data.ptr); |
| else |
| tmp = (void __user *)(unsigned long)oat_data.ptr; |
| |
| if (copy_to_user(tmp, priv.buffer, |
| priv.response_len)) { |
| rc = -EFAULT; |
| goto out_free; |
| } |
| |
| oat_data.response_len = priv.response_len; |
| |
| if (copy_to_user(udata, &oat_data, |
| sizeof(struct qeth_query_oat_data))) |
| rc = -EFAULT; |
| } else |
| if (rc == IPA_RC_FFFF) |
| rc = -EFAULT; |
| |
| out_free: |
| kfree(priv.buffer); |
| out: |
| return rc; |
| } |
| EXPORT_SYMBOL_GPL(qeth_query_oat_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 void qeth_determine_capabilities(struct qeth_card *card) |
| { |
| int rc; |
| int length; |
| char *prcd; |
| struct ccw_device *ddev; |
| int ddev_offline = 0; |
| |
| QETH_DBF_TEXT(SETUP, 2, "detcapab"); |
| ddev = CARD_DDEV(card); |
| if (!ddev->online) { |
| ddev_offline = 1; |
| rc = ccw_device_set_online(ddev); |
| 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); |
| if (ddev_offline) |
| qeth_configure_blkt_default(card, prcd); |
| kfree(prcd); |
| |
| rc = qdio_get_ssqd_desc(ddev, &card->ssqd); |
| if (rc) |
| QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
| |
| QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); |
| QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1); |
| QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3); |
| QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); |
| if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || |
| ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || |
| ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { |
| dev_info(&card->gdev->dev, |
| "Completion Queueing supported\n"); |
| } else { |
| card->options.cq = QETH_CQ_NOTAVAILABLE; |
| } |
| |
| |
| out_offline: |
| if (ddev_offline == 1) |
| ccw_device_set_offline(ddev); |
| out: |
| return; |
| } |
| |
| static inline void qeth_qdio_establish_cq(struct qeth_card *card, |
| struct qdio_buffer **in_sbal_ptrs, |
| void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) { |
| int i; |
| |
| if (card->options.cq == QETH_CQ_ENABLED) { |
| int offset = QDIO_MAX_BUFFERS_PER_Q * |
| (card->qdio.no_in_queues - 1); |
| i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1); |
| for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
| in_sbal_ptrs[offset + i] = (struct qdio_buffer *) |
| virt_to_phys(card->qdio.c_q->bufs[i].buffer); |
| } |
| |
| queue_start_poll[card->qdio.no_in_queues - 1] = NULL; |
| } |
| } |
| |
| static int qeth_qdio_establish(struct qeth_card *card) |
| { |
| struct qdio_initialize init_data; |
| char *qib_param_field; |
| struct qdio_buffer **in_sbal_ptrs; |
| void (**queue_start_poll) (struct ccw_device *, int, unsigned long); |
| 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) { |
| rc = -ENOMEM; |
| goto out_free_nothing; |
| } |
| |
| qeth_create_qib_param_field(card, qib_param_field); |
| qeth_create_qib_param_field_blkt(card, qib_param_field); |
| |
| in_sbal_ptrs = kzalloc(card->qdio.no_in_queues * |
| QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), |
| GFP_KERNEL); |
| if (!in_sbal_ptrs) { |
| rc = -ENOMEM; |
| goto out_free_qib_param; |
| } |
| 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); |
| } |
| |
| queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues, |
| GFP_KERNEL); |
| if (!queue_start_poll) { |
| rc = -ENOMEM; |
| goto out_free_in_sbals; |
| } |
| for (i = 0; i < card->qdio.no_in_queues; ++i) |
| queue_start_poll[i] = card->discipline->start_poll; |
| |
| qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); |
| |
| out_sbal_ptrs = |
| kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * |
| sizeof(void *), GFP_KERNEL); |
| if (!out_sbal_ptrs) { |
| rc = -ENOMEM; |
| goto out_free_queue_start_poll; |
| } |
| 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 = card->qdio.no_in_queues; |
| 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_array = queue_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; |
| init_data.output_sbal_state_array = card->qdio.out_bufstates; |
| init_data.scan_threshold = |
| (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; |
| |
| 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)); |
| } |
| } |
| |
| switch (card->options.cq) { |
| case QETH_CQ_ENABLED: |
| dev_info(&card->gdev->dev, "Completion Queue support enabled"); |
| break; |
| case QETH_CQ_DISABLED: |
| dev_info(&card->gdev->dev, "Completion Queue support disabled"); |
| break; |
| default: |
| break; |
| } |
| out: |
| kfree(out_sbal_ptrs); |
| out_free_queue_start_poll: |
| kfree(queue_start_poll); |
| out_free_in_sbals: |
| kfree(in_sbal_ptrs); |
| out_free_qib_param: |
| kfree(qib_param_field); |
| out_free_nothing: |
| 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); |
| } |
| |
| void qeth_trace_features(struct qeth_card *card) |
| { |
| QETH_CARD_TEXT(card, 2, "features"); |
| QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.supported_funcs); |
| QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.enabled_funcs); |
| QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.supported_funcs); |
| QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.enabled_funcs); |
| QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.supported_funcs); |
| QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.enabled_funcs); |
| QETH_CARD_TEXT_(card, 2, "%x", card->info.diagass_support); |
| } |
| EXPORT_SYMBOL_GPL(qeth_trace_features); |
| |
| 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 = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "qeth", |
| }, |
| .ids = qeth_ids, |
| .probe = ccwgroup_probe_ccwdev, |
| .remove = ccwgroup_remove_ccwdev, |
| }; |
| |
| int qeth_core_hardsetup_card(struct qeth_card *card) |
| { |
| int retries = 3; |
| int rc; |
| |
| QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
| atomic_set(&card->force_alloc_skb, 0); |
| qeth_update_from_chp_desc(card); |
| retry: |
| if (retries < 3) |
| 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 < 0) |
| goto out; |
| else |
| goto retry; |
| } |
| qeth_determine_capabilities(card); |
| 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; |
| } |
| |
| card->options.ipa4.supported_funcs = 0; |
| card->options.adp.supported_funcs = 0; |
| card->info.diagass_support = 0; |
| qeth_query_ipassists(card, QETH_PROT_IPV4); |
| if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) |
| qeth_query_setadapterparms(card); |
| if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) |
| qeth_query_setdiagass(card); |
| 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 qeth_qdio_buffer *qethbuffer, |
| 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) { |
| if (qethbuffer->rx_skb) { |
| /* only if qeth_card.options.cq == QETH_CQ_ENABLED */ |
| *pskb = qethbuffer->rx_skb; |
| qethbuffer->rx_skb = NULL; |
| } else { |
| *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN); |
| if (!(*pskb)) |
| return -ENOMEM; |
| } |
| |
| skb_reserve(*pskb, ETH_HLEN); |
| if (data_len <= QETH_RX_PULL_LEN) { |
| memcpy(skb_put(*pskb, data_len), element->addr + offset, |
| data_len); |
| } else { |
| get_page(page); |
| memcpy(skb_put(*pskb, QETH_RX_PULL_LEN), |
| element->addr + offset, QETH_RX_PULL_LEN); |
| skb_fill_page_desc(*pskb, *pfrag, page, |
| offset + QETH_RX_PULL_LEN, |
| data_len - QETH_RX_PULL_LEN); |
| (*pskb)->data_len += data_len - QETH_RX_PULL_LEN; |
| (*pskb)->len += data_len - QETH_RX_PULL_LEN; |
| (*pskb)->truesize += data_len - QETH_RX_PULL_LEN; |
| (*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 qeth_qdio_buffer *qethbuffer, |
| struct qdio_buffer_element **__element, int *__offset, |
| struct qeth_hdr **hdr) |
| { |
| struct qdio_buffer_element *element = *__element; |
| struct qdio_buffer *buffer = qethbuffer->buffer; |
| 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; |
| 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))) || |
| (card->options.cq == QETH_CQ_ENABLED)) { |
| 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(qethbuffer, 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; |
| mutex_lock(&qeth_mod_mutex); |
| switch (discipline) { |
| case QETH_DISCIPLINE_LAYER3: |
| card->discipline = try_then_request_module( |
| symbol_get(qeth_l3_discipline), "qeth_l3"); |
| break; |
| case QETH_DISCIPLINE_LAYER2: |
| card->discipline = try_then_request_module( |
| symbol_get(qeth_l2_discipline), "qeth_l2"); |
| break; |
| } |
| if (!card->discipline) { |
| dev_err(&card->gdev->dev, "There is no kernel module to " |
| "support discipline %d\n", discipline); |
| rc = -EINVAL; |
| } |
| mutex_unlock(&qeth_mod_mutex); |
| return rc; |
| } |
| |
| void qeth_core_free_discipline(struct qeth_card *card) |
| { |
| if (card->options.layer2) |
| symbol_put(qeth_l2_discipline); |
| else |
| symbol_put(qeth_l3_discipline); |
| card->discipline = NULL; |
| } |
| |
| static const struct device_type qeth_generic_devtype = { |
| .name = "qeth_generic", |
| .groups = qeth_generic_attr_groups, |
| }; |
| static const struct device_type qeth_osn_devtype = { |
| .name = "qeth_osn", |
| .groups = qeth_osn_attr_groups, |
| }; |
| |
| #define DBF_NAME_LEN 20 |
| |
| struct qeth_dbf_entry { |
| char dbf_name[DBF_NAME_LEN]; |
| debug_info_t *dbf_info; |
| struct list_head dbf_list; |
| }; |
| |
| static LIST_HEAD(qeth_dbf_list); |
| static DEFINE_MUTEX(qeth_dbf_list_mutex); |
| |
| static debug_info_t *qeth_get_dbf_entry(char *name) |
| { |
| struct qeth_dbf_entry *entry; |
| debug_info_t *rc = NULL; |
| |
| mutex_lock(&qeth_dbf_list_mutex); |
| list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { |
| if (strcmp(entry->dbf_name, name) == 0) { |
| rc = entry->dbf_info; |
| break; |
| } |
| } |
| mutex_unlock(&qeth_dbf_list_mutex); |
| return rc; |
| } |
| |
| static int qeth_add_dbf_entry(struct qeth_card *card, char *name) |
| { |
| struct qeth_dbf_entry *new_entry; |
| |
| card->debug = debug_register(name, 2, 1, 8); |
| if (!card->debug) { |
| QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); |
| goto err; |
| } |
| if (debug_register_view(card->debug, &debug_hex_ascii_view)) |
| goto err_dbg; |
| new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); |
| if (!new_entry) |
| goto err_dbg; |
| strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); |
| new_entry->dbf_info = card->debug; |
| mutex_lock(&qeth_dbf_list_mutex); |
| list_add(&new_entry->dbf_list, &qeth_dbf_list); |
| mutex_unlock(&qeth_dbf_list_mutex); |
| |
| return 0; |
| |
| err_dbg: |
| debug_unregister(card->debug); |
| err: |
| return -ENOMEM; |
| } |
| |
| static void qeth_clear_dbf_list(void) |
| { |
| struct qeth_dbf_entry *entry, *tmp; |
| |
| mutex_lock(&qeth_dbf_list_mutex); |
| list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { |
| list_del(&entry->dbf_list); |
| debug_unregister(entry->dbf_info); |
| kfree(entry); |
| } |
| mutex_unlock(&qeth_dbf_list_mutex); |
| } |
| |
| 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[DBF_NAME_LEN]; |
| |
| 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 = qeth_get_dbf_entry(dbf_name); |
| if (!card->debug) { |
| rc = qeth_add_dbf_entry(card, dbf_name); |
| if (rc) |
| goto err_card; |
| } |
| |
| 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_card; |
| } |
| rc = qeth_setup_card(card); |
| if (rc) { |
| QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
| goto err_card; |
| } |
| |
| if (card->info.type == QETH_CARD_TYPE_OSN) |
| gdev->dev.type = &qeth_osn_devtype; |
| else |
| gdev->dev.type = &qeth_generic_devtype; |
| |
| 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_card; |
| rc = card->discipline->setup(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_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->discipline) { |
| card->discipline->remove(gdev); |
| qeth_core_free_discipline(card); |
| } |
| |
| 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) { |
| 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->setup(card->gdev); |
| if (rc) |
| goto err; |
| } |
| rc = card->discipline->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->set_offline(gdev); |
| } |
| |
| static void qeth_core_shutdown(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| if (card->discipline && card->discipline->shutdown) |
| card->discipline->shutdown(gdev); |
| } |
| |
| static int qeth_core_prepare(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| if (card->discipline && card->discipline->prepare) |
| return card->discipline->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 && card->discipline->complete) |
| card->discipline->complete(gdev); |
| } |
| |
| static int qeth_core_freeze(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| if (card->discipline && card->discipline->freeze) |
| return card->discipline->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 && card->discipline->thaw) |
| return card->discipline->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 && card->discipline->restore) |
| return card->discipline->restore(gdev); |
| return 0; |
| } |
| |
| static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "qeth", |
| }, |
| .setup = 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 = ccwgroup_create_dev(qeth_core_root_dev, |
| &qeth_core_ccwgroup_driver, 3, buf); |
| |
| return err ? err : count; |
| } |
| static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); |
| |
| static struct attribute *qeth_drv_attrs[] = { |
| &driver_attr_group.attr, |
| NULL, |
| }; |
| static struct attribute_group qeth_drv_attr_group = { |
| .attrs = qeth_drv_attrs, |
| }; |
| static const struct attribute_group *qeth_drv_attr_groups[] = { |
| &qeth_drv_attr_group, |
| NULL, |
| }; |
| |
| 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"}, |
| {"cq handler count"}, |
| {"cq handler time"} |
| }; |
| |
| 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; |
| data[35] = card->perf_stats.cq_cnt; |
| data[36] = card->perf_stats.cq_time; |
| } |
| 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; |
| |
| strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3", |
| sizeof(info->driver)); |
| strlcpy(info->version, "1.0", sizeof(info->version)); |
| strlcpy(info->fw_version, card->info.mcl_level, |
| sizeof(info->fw_version)); |
| snprintf(info->bus_info, sizeof(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); |
| INIT_LIST_HEAD(&qeth_dbf_list); |
| rwlock_init(&qeth_core_card_list.rwlock); |
| mutex_init(&qeth_mod_mutex); |
| |
| qeth_wq = create_singlethread_workqueue("qeth_wq"); |
| |
| rc = qeth_register_dbf_views(); |
| if (rc) |
| goto out_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; |
| } |
| qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", |
| sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); |
| if (!qeth_qdio_outbuf_cache) { |
| rc = -ENOMEM; |
| goto cqslab_err; |
| } |
| rc = ccw_driver_register(&qeth_ccw_driver); |
| if (rc) |
| goto ccw_err; |
| qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups; |
| rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); |
| if (rc) |
| goto ccwgroup_err; |
| |
| return 0; |
| |
| ccwgroup_err: |
| ccw_driver_unregister(&qeth_ccw_driver); |
| ccw_err: |
| kmem_cache_destroy(qeth_qdio_outbuf_cache); |
| cqslab_err: |
| kmem_cache_destroy(qeth_core_header_cache); |
| slab_err: |
| root_device_unregister(qeth_core_root_dev); |
| register_err: |
| qeth_unregister_dbf_views(); |
| out_err: |
| pr_err("Initializing the qeth device driver failed\n"); |
| return rc; |
| } |
| |
| static void __exit qeth_core_exit(void) |
| { |
| qeth_clear_dbf_list(); |
| destroy_workqueue(qeth_wq); |
| ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| ccw_driver_unregister(&qeth_ccw_driver); |
| kmem_cache_destroy(qeth_qdio_outbuf_cache); |
| kmem_cache_destroy(qeth_core_header_cache); |
| root_device_unregister(qeth_core_root_dev); |
| qeth_unregister_dbf_views(); |
| pr_info("core functions removed\n"); |
| } |
| |
| module_init(qeth_core_init); |
| module_exit(qeth_core_exit); |
| MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); |
| MODULE_DESCRIPTION("qeth core functions"); |
| MODULE_LICENSE("GPL"); |