--- /dev/null
+/*
+ * 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 <net/dsfield.h>
+
+#include <asm/ebcdic.h>
+#include <asm/chpid.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, 11 * sizeof(long), 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);
+
+struct workqueue_struct *qeth_wq;
+EXPORT_SYMBOL_GPL(qeth_wq);
+
+int qeth_card_hw_is_reachable(struct qeth_card *card)
+{
+ return (card->state == CARD_STATE_SOFTSETUP) ||
+ (card->state == CARD_STATE_UP);
+}
+EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable);
+
+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 void qeth_free_qdio_queue(struct qeth_qdio_q *q)
+{
+ if (!q)
+ return;
+
+ qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
+ kfree(q);
+}
+
+static struct qeth_qdio_q *qeth_alloc_qdio_queue(void)
+{
+ struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
+ int i;
+
+ if (!q)
+ return NULL;
+
+ if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
+ kfree(q);
+ return NULL;
+ }
+
+ for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
+ q->bufs[i].buffer = q->qdio_bufs[i];
+
+ QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *));
+ return q;
+}
+
+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");
+ qdio_reset_buffers(card->qdio.c_q->qdio_bufs,
+ QDIO_MAX_BUFFERS_PER_Q);
+ 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 = qeth_alloc_qdio_queue();
+ if (!card->qdio.c_q) {
+ rc = -1;
+ goto kmsg_out;
+ }
+ card->qdio.no_in_queues = 2;
+ card->qdio.out_bufstates =
+ 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:
+ qeth_free_qdio_queue(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;
+ qeth_free_qdio_queue(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_SETBRIDGEPORT:
+ case IPA_CMD_ADDRESS_CHANGE_NOTIF:
+ if (card->discipline->control_event_handler
+ (card, cmd))
+ return cmd;
+ else
+ 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 struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
+{
+ struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
+ dev_get_drvdata(&cdev->dev))->dev);
+ return card;
+}
+
+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 (!card || !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->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_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 channel_path_desc *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 void qeth_buffer_reclaim_work(struct work_struct *);
+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);
+ 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] >= 0xF1 && prcd[76] <= 0xF4) {
+ card->info.blkt.time_total = 0;
+ card->info.blkt.inter_packet = 0;
+ card->info.blkt.inter_packet_jumbo = 0;
+ } else {
+ card->info.blkt.time_total = 250;
+ card->info.blkt.inter_packet = 5;
+ card->info.blkt.inter_packet_jumbo = 15;
+ }
+}
+
+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);
+ if (!iob)
+ return -ENOMEM;
+ 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);
+ if (!iob)
+ return -ENOMEM;
+ 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);
+
+/**
+ * qeth_send_control_data() - send control command to the card
+ * @card: qeth_card structure pointer
+ * @len: size of the command buffer
+ * @iob: qeth_cmd_buffer pointer
+ * @reply_cb: callback function pointer
+ * @cb_card: pointer to the qeth_card structure
+ * @cb_reply: pointer to the qeth_reply structure
+ * @cb_cmd: pointer to the original iob for non-IPA
+ * commands, or to the qeth_ipa_cmd structure
+ * for the IPA commands.
+ * @reply_param: private pointer passed to the callback
+ *
+ * Returns the value of the `return_code' field of the response
+ * block returned from the hardware, or other error indication.
+ * Value of zero indicates successful execution of the command.
+ *
+ * Callback function gets called one or more times, with cb_cmd
+ * pointing to the response returned by the hardware. Callback
+ * function must return non-zero if more reply blocks are expected,
+ * and zero if the last or only reply block is received. Callback
+ * function can get the value of the reply_param pointer from the
+ * field 'param' of the structure qeth_reply.
+ */
+
+int qeth_send_control_data(struct qeth_card *card, int len,
+ struct qeth_cmd_buffer *iob,
+ int (*reply_cb)(struct qeth_card *cb_card,
+ struct qeth_reply *cb_reply,
+ unsigned long cb_cmd),
+ 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 card->options.layer2 ? 1500 : 1492;
+ }
+ case QETH_CARD_TYPE_OSM:
+ case QETH_CARD_TYPE_OSX:
+ return card->options.layer2 ? 1500 : 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.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
+ iob->data);
+ card->info.initial_mtu = min(card->info.max_mtu,
+ qeth_get_initial_mtu_for_card(card));
+ 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 void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q)
+{
+ if (!q)
+ return;
+
+ qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
+ kfree(q);
+}
+
+static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void)
+{
+ struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
+
+ if (!q)
+ return NULL;
+
+ if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
+ kfree(q);
+ return NULL;
+ }
+ return q;
+}
+
+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;
+
+ QETH_DBF_TEXT(SETUP, 2, "inq");
+ card->qdio.in_q = qeth_alloc_qdio_queue();
+ if (!card->qdio.in_q)
+ goto out_nomem;
+
+ /* 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] = qeth_alloc_qdio_out_buf();
+ 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) {
+ qeth_free_qdio_out_buf(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:
+ qeth_free_qdio_queue(card->qdio.in_q);
+ card->qdio.in_q = NULL;
+out_nomem:
+ atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
+ return -ENOMEM;
+}
+
+static void qeth_free_qdio_buffers(struct qeth_card *card)
+{
+ int i, j;
+
+ 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) {
+ if (card->qdio.in_q->bufs[j].rx_skb)
+ dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
+ }
+ qeth_free_qdio_queue(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);
+ qeth_free_qdio_out_buf(card->qdio.out_qs[i]);
+ }
+ kfree(card->qdio.out_qs);
+ card->qdio.out_qs = NULL;
+ }
+}
+
+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);
+ qdio_free(CARD_DDEV(card));
+ 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 */
+ qdio_reset_buffers(card->qdio.in_q->qdio_bufs,
+ QDIO_MAX_BUFFERS_PER_Q);
+ 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) {
+ qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs,
+ QDIO_MAX_BUFFERS_PER_Q);
+ 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_get_buffer(&card->write);
+ if (iob) {
+ cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+ qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
+ } else {
+ dev_warn(&card->gdev->dev,
+ "The qeth driver ran out of channel command buffers\n");
+ QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
+ dev_name(&card->gdev->dev));
+ }
+
+ 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);
+
+/**
+ * qeth_send_ipa_cmd() - send an IPA command
+ *
+ * See qeth_send_control_data() for explanation of the arguments.
+ */
+
+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);
+ if (!iob)
+ return -ENOMEM;
+ 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);
+ if (iob) {
+ 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));
+ if (!iob)
+ return -ENOMEM;
+ 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);
+ if (!iob)
+ return -ENOMEM;
+ rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(qeth_query_ipassists);
+
+static int qeth_query_switch_attributes_cb(struct qeth_card *card,
+ struct qeth_reply *reply, unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_switch_info *sw_info;
+ struct qeth_query_switch_attributes *attrs;
+
+ QETH_CARD_TEXT(card, 2, "qswiatcb");
+ cmd = (struct qeth_ipa_cmd *) data;
+ sw_info = (struct qeth_switch_info *)reply->param;
+ if (cmd->data.setadapterparms.hdr.return_code == 0) {
+ attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
+ sw_info->capabilities = attrs->capabilities;
+ sw_info->settings = attrs->settings;
+ QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
+ sw_info->settings);
+ }
+ qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
+
+ return 0;
+}
+
+int qeth_query_switch_attributes(struct qeth_card *card,
+ struct qeth_switch_info *sw_info)
+{
+ struct qeth_cmd_buffer *iob;
+
+ QETH_CARD_TEXT(card, 2, "qswiattr");
+ if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES))
+ return -EOPNOTSUPP;
+ if (!netif_carrier_ok(card->dev))
+ return -ENOMEDIUM;
+ iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES,
+ sizeof(struct qeth_ipacmd_setadpparms_hdr));
+ if (!iob)
+ return -ENOMEM;
+ return qeth_send_ipa_cmd(card, iob,
+ qeth_query_switch_attributes_cb, sw_info);
+}
+EXPORT_SYMBOL_GPL(qeth_query_switch_attributes);
+
+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);
+ if (!iob)
+ return -ENOMEM;
+ 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);
+ if (!iob)
+ return -ENOMEM;
+ 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);
+
+static 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);
+
+/**
+ * Note: Function assumes that we have 4 outbound queues.
+ */
+int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
+ int ipv, int cast_type)
+{
+ __be16 *tci;
+ u8 tos;
+
+ if (cast_type && card->info.is_multicast_different)
+ return card->info.is_multicast_different &
+ (card->qdio.no_out_queues - 1);
+
+ switch (card->qdio.do_prio_queueing) {
+ case QETH_PRIO_Q_ING_TOS:
+ case QETH_PRIO_Q_ING_PREC:
+ switch (ipv) {
+ case 4:
+ tos = ipv4_get_dsfield(ip_hdr(skb));
+ break;
+ case 6:
+ tos = ipv6_get_dsfield(ipv6_hdr(skb));
+ break;
+ default:
+ return card->qdio.default_out_queue;
+ }
+ if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
+ return ~tos >> 6 & 3;
+ if (tos & IPTOS_MINCOST)
+ return 3;
+ if (tos & IPTOS_RELIABILITY)
+ return 2;
+ if (tos & IPTOS_THROUGHPUT)
+ return 1;
+ if (tos & IPTOS_LOWDELAY)
+ return 0;
+ break;
+ case QETH_PRIO_Q_ING_SKB:
+ if (skb->priority > 5)
+ return 0;
+ return ~skb->priority >> 1 & 3;
+ case QETH_PRIO_Q_ING_VLAN:
+ tci = &((struct ethhdr *)skb->data)->h_proto;
+ if (*tci == ETH_P_8021Q)
+ return ~*(tci + 1) >> (VLAN_PRIO_SHIFT + 1) & 3;
+ break;
+ default:
+ break;
+ }
+ 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,
+ 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, struct qeth_hdr **hdr, 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;
+ skb->tail -= rest;
+ *hdr = (struct qeth_hdr *)skb->data;
+ 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%x", 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_hdr) + 8);
+ if (!iob)
+ return;
+ 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_hdr) +
+ sizeof(struct qeth_change_addr));
+ if (!iob)
+ return -ENOMEM;
+ 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));
+ if (!iob)
+ return -ENOMEM;
+ 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%x", 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%x", 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;
+ unsigned 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;
+ if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
+ sizeof(struct qeth_ipacmd_hdr) -
+ sizeof(struct qeth_ipacmd_setadpparms_hdr)))
+ return -EINVAL;
+ 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);
+ if (!iob) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ 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;
+ }
+out:
+ 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));
+ if (!iob) {
+ rc = -ENOMEM;
+ goto out_free;
+ }
+ 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 int qeth_query_card_info_cb(struct qeth_card *card,
+ struct qeth_reply *reply, unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_query_card_info *card_info;
+ struct carrier_info *carrier_info;
+
+ QETH_CARD_TEXT(card, 2, "qcrdincb");
+ carrier_info = (struct carrier_info *)reply->param;
+ cmd = (struct qeth_ipa_cmd *)data;
+ card_info = &cmd->data.setadapterparms.data.card_info;
+ if (cmd->data.setadapterparms.hdr.return_code == 0) {
+ carrier_info->card_type = card_info->card_type;
+ carrier_info->port_mode = card_info->port_mode;
+ carrier_info->port_speed = card_info->port_speed;
+ }
+
+ qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
+ return 0;
+}
+
+static int qeth_query_card_info(struct qeth_card *card,
+ struct carrier_info *carrier_info)
+{
+ struct qeth_cmd_buffer *iob;
+
+ QETH_CARD_TEXT(card, 2, "qcrdinfo");
+ if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
+ return -EOPNOTSUPP;
+ iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
+ sizeof(struct qeth_ipacmd_setadpparms_hdr));
+ if (!iob)
+ return -ENOMEM;
+ return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
+ (void *)carrier_info);
+}
+
+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));
+ rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
+ ccw_device_set_offline(CARD_DDEV(card));
+ ccw_device_set_offline(CARD_WDEV(card));
+ ccw_device_set_offline(CARD_RDEV(card));
+ qdio_free(CARD_DDEV(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;
+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->options.sbp.supported_funcs = 0;
+ card->info.diagass_support = 0;
+ rc = qeth_query_ipassists(card, QETH_PROT_IPV4);
+ if (rc == -ENOMEM)
+ goto out;
+ if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
+ rc = qeth_query_setadapterparms(card);
+ if (rc < 0) {
+ QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+ goto out;
+ }
+ }
+ if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
+ rc = qeth_query_setdiagass(card);
+ if (rc < 0) {
+ QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
+ goto out;
+ }
+ }
+ return 0;
+out:
+ dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
+ "an error on the device\n");
+ QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
+ dev_name(&card->gdev->dev), rc);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
+
+static inline int qeth_create_skb_frag(struct 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;
+}
+
+static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
+{
+ return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
+}
+
+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 (!debug_level_enabled(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);
+
+/* Helper function to fill 'advertizing' and 'supported' which are the same. */
+/* Autoneg and full-duplex are supported and advertized uncondionally. */
+/* Always advertize and support all speeds up to specified, and only one */
+/* specified port type. */
+static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd,
+ int maxspeed, int porttype)
+{
+ int port_sup, port_adv, spd_sup, spd_adv;
+
+ switch (porttype) {
+ case PORT_TP:
+ port_sup = SUPPORTED_TP;
+ port_adv = ADVERTISED_TP;
+ break;
+ case PORT_FIBRE:
+ port_sup = SUPPORTED_FIBRE;
+ port_adv = ADVERTISED_FIBRE;
+ break;
+ default:
+ port_sup = SUPPORTED_TP;
+ port_adv = ADVERTISED_TP;
+ WARN_ON_ONCE(1);
+ }
+
+ /* "Fallthrough" case'es ordered from high to low result in setting */
+ /* flags cumulatively, starting from the specified speed and down to */
+ /* the lowest possible. */
+ spd_sup = 0;
+ spd_adv = 0;
+ switch (maxspeed) {
+ case SPEED_10000:
+ spd_sup |= SUPPORTED_10000baseT_Full;
+ spd_adv |= ADVERTISED_10000baseT_Full;
+ case SPEED_1000:
+ spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
+ spd_adv |= ADVERTISED_1000baseT_Half |
+ ADVERTISED_1000baseT_Full;
+ case SPEED_100:
+ spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
+ spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
+ case SPEED_10:
+ spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
+ spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
+ break;
+ default:
+ spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
+ spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
+ WARN_ON_ONCE(1);
+ }
+ ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv;
+ ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup;
+}
+
+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;
+ struct carrier_info carrier_info;
+ int rc;
+ u32 speed;
+
+ 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->duplex = DUPLEX_FULL;
+ ecmd->autoneg = AUTONEG_ENABLE;
+
+ switch (link_type) {
+ case QETH_LINK_TYPE_FAST_ETH:
+ case QETH_LINK_TYPE_LANE_ETH100:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP);
+ speed = SPEED_100;
+ ecmd->port = PORT_TP;
+ break;
+
+ case QETH_LINK_TYPE_GBIT_ETH:
+ case QETH_LINK_TYPE_LANE_ETH1000:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
+ speed = SPEED_1000;
+ ecmd->port = PORT_FIBRE;
+ break;
+
+ case QETH_LINK_TYPE_10GBIT_ETH:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
+ speed = SPEED_10000;
+ ecmd->port = PORT_FIBRE;
+ break;
+
+ default:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP);
+ speed = SPEED_10;
+ ecmd->port = PORT_TP;
+ }
+ ethtool_cmd_speed_set(ecmd, speed);
+
+ /* Check if we can obtain more accurate information. */
+ /* If QUERY_CARD_INFO command is not supported or fails, */
+ /* just return the heuristics that was filled above. */
+ if (!qeth_card_hw_is_reachable(card))
+ return -ENODEV;
+ rc = qeth_query_card_info(card, &carrier_info);
+ if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
+ return 0;
+ if (rc) /* report error from the hardware operation */
+ return rc;
+ /* on success, fill in the information got from the hardware */
+
+ netdev_dbg(netdev,
+ "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
+ carrier_info.card_type,
+ carrier_info.port_mode,
+ carrier_info.port_speed);
+
+ /* Update attributes for which we've obtained more authoritative */
+ /* information, leave the rest the way they where filled above. */
+ switch (carrier_info.card_type) {
+ case CARD_INFO_TYPE_1G_COPPER_A:
+ case CARD_INFO_TYPE_1G_COPPER_B:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP);
+ ecmd->port = PORT_TP;
+ break;
+ case CARD_INFO_TYPE_1G_FIBRE_A:
+ case CARD_INFO_TYPE_1G_FIBRE_B:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
+ ecmd->port = PORT_FIBRE;
+ break;
+ case CARD_INFO_TYPE_10G_FIBRE_A:
+ case CARD_INFO_TYPE_10G_FIBRE_B:
+ qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
+ ecmd->port = PORT_FIBRE;
+ break;
+ }
+
+ switch (carrier_info.port_mode) {
+ case CARD_INFO_PORTM_FULLDUPLEX:
+ ecmd->duplex = DUPLEX_FULL;
+ break;
+ case CARD_INFO_PORTM_HALFDUPLEX:
+ ecmd->duplex = DUPLEX_HALF;
+ break;
+ }
+
+ switch (carrier_info.port_speed) {
+ case CARD_INFO_PORTS_10M:
+ speed = SPEED_10;
+ break;
+ case CARD_INFO_PORTS_100M:
+ speed = SPEED_100;
+ break;
+ case CARD_INFO_PORTS_1G:
+ speed = SPEED_1000;
+ break;
+ case CARD_INFO_PORTS_10G:
+ speed = SPEED_10000;
+ break;
+ }
+ ethtool_cmd_speed_set(ecmd, speed);
+
+ 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 = PTR_ERR_OR_ZERO(qeth_core_root_dev);
+ 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");
Code Review / kvmfornfv.git / blobdiff