s390/qeth: stop using struct ccwgroup driver for discipline callbacks
The interface between qeth and its disciplines should not depend on struct ccwgroup_driver, as a qeth discipline is not a ccwgroup driver on its own. Instead provide the particular callbacks in struct qeth_discipline. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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b7169c515b
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c041f2d487
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@ -711,7 +711,16 @@ struct qeth_discipline {
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qdio_handler_t *input_handler;
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qdio_handler_t *output_handler;
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int (*recover)(void *ptr);
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struct ccwgroup_driver *ccwgdriver;
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int (*setup) (struct ccwgroup_device *);
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void (*remove) (struct ccwgroup_device *);
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int (*set_online) (struct ccwgroup_device *);
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int (*set_offline) (struct ccwgroup_device *);
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void (*shutdown)(struct ccwgroup_device *);
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int (*prepare) (struct ccwgroup_device *);
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void (*complete) (struct ccwgroup_device *);
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int (*freeze)(struct ccwgroup_device *);
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int (*thaw) (struct ccwgroup_device *);
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int (*restore)(struct ccwgroup_device *);
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};
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struct qeth_vlan_vid {
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@ -775,7 +784,7 @@ struct qeth_card {
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struct qeth_perf_stats perf_stats;
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int read_or_write_problem;
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struct qeth_osn_info osn_info;
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struct qeth_discipline discipline;
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struct qeth_discipline *discipline;
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atomic_t force_alloc_skb;
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struct service_level qeth_service_level;
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struct qdio_ssqd_desc ssqd;
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@ -841,8 +850,8 @@ static inline int qeth_is_diagass_supported(struct qeth_card *card,
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return card->info.diagass_support & (__u32)cmd;
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}
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extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
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extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
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extern struct qeth_discipline qeth_l2_discipline;
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extern struct qeth_discipline qeth_l3_discipline;
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extern const struct attribute_group *qeth_generic_attr_groups[];
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extern const struct attribute_group *qeth_osn_attr_groups[];
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@ -1365,7 +1365,7 @@ static void qeth_start_kernel_thread(struct work_struct *work)
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card->write.state != CH_STATE_UP)
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return;
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if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
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ts = kthread_run(card->discipline.recover, (void *)card,
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ts = kthread_run(card->discipline->recover, (void *)card,
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"qeth_recover");
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if (IS_ERR(ts)) {
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qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
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@ -4629,7 +4629,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
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goto out_free_in_sbals;
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}
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for (i = 0; i < card->qdio.no_in_queues; ++i)
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queue_start_poll[i] = card->discipline.start_poll;
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queue_start_poll[i] = card->discipline->start_poll;
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qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
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@ -4653,8 +4653,8 @@ static int qeth_qdio_establish(struct qeth_card *card)
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init_data.qib_param_field = qib_param_field;
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init_data.no_input_qs = card->qdio.no_in_queues;
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init_data.no_output_qs = card->qdio.no_out_queues;
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init_data.input_handler = card->discipline.input_handler;
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init_data.output_handler = card->discipline.output_handler;
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init_data.input_handler = card->discipline->input_handler;
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init_data.output_handler = card->discipline->output_handler;
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init_data.queue_start_poll_array = queue_start_poll;
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init_data.int_parm = (unsigned long) card;
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init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
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@ -5039,17 +5039,15 @@ int qeth_core_load_discipline(struct qeth_card *card,
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mutex_lock(&qeth_mod_mutex);
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switch (discipline) {
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case QETH_DISCIPLINE_LAYER3:
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card->discipline.ccwgdriver = try_then_request_module(
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symbol_get(qeth_l3_ccwgroup_driver),
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"qeth_l3");
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card->discipline = try_then_request_module(
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symbol_get(qeth_l3_discipline), "qeth_l3");
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break;
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case QETH_DISCIPLINE_LAYER2:
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card->discipline.ccwgdriver = try_then_request_module(
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symbol_get(qeth_l2_ccwgroup_driver),
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"qeth_l2");
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card->discipline = try_then_request_module(
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symbol_get(qeth_l2_discipline), "qeth_l2");
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break;
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}
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if (!card->discipline.ccwgdriver) {
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if (!card->discipline) {
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dev_err(&card->gdev->dev, "There is no kernel module to "
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"support discipline %d\n", discipline);
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rc = -EINVAL;
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@ -5061,10 +5059,10 @@ int qeth_core_load_discipline(struct qeth_card *card,
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void qeth_core_free_discipline(struct qeth_card *card)
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{
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if (card->options.layer2)
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symbol_put(qeth_l2_ccwgroup_driver);
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symbol_put(qeth_l2_discipline);
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else
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symbol_put(qeth_l3_ccwgroup_driver);
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card->discipline.ccwgdriver = NULL;
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symbol_put(qeth_l3_discipline);
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card->discipline = NULL;
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}
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static const struct device_type qeth_generic_devtype = {
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@ -5140,7 +5138,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
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rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
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if (rc)
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goto err_dbf;
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rc = card->discipline.ccwgdriver->probe(card->gdev);
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rc = card->discipline->setup(card->gdev);
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if (rc)
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goto err_disc;
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case QETH_CARD_TYPE_OSD:
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@ -5174,8 +5172,8 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
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QETH_DBF_TEXT(SETUP, 2, "removedv");
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if (card->discipline.ccwgdriver) {
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card->discipline.ccwgdriver->remove(gdev);
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if (card->discipline) {
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card->discipline->remove(gdev);
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qeth_core_free_discipline(card);
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}
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@ -5195,7 +5193,7 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
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int rc = 0;
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int def_discipline;
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if (!card->discipline.ccwgdriver) {
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if (!card->discipline) {
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if (card->info.type == QETH_CARD_TYPE_IQD)
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def_discipline = QETH_DISCIPLINE_LAYER3;
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else
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@ -5203,11 +5201,11 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
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rc = qeth_core_load_discipline(card, def_discipline);
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if (rc)
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goto err;
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rc = card->discipline.ccwgdriver->probe(card->gdev);
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rc = card->discipline->setup(card->gdev);
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if (rc)
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goto err;
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}
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rc = card->discipline.ccwgdriver->set_online(gdev);
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rc = card->discipline->set_online(gdev);
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err:
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return rc;
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}
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@ -5215,58 +5213,52 @@ err:
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static int qeth_core_set_offline(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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return card->discipline.ccwgdriver->set_offline(gdev);
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return card->discipline->set_offline(gdev);
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}
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static void qeth_core_shutdown(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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if (card->discipline.ccwgdriver &&
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card->discipline.ccwgdriver->shutdown)
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card->discipline.ccwgdriver->shutdown(gdev);
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if (card->discipline && card->discipline->shutdown)
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card->discipline->shutdown(gdev);
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}
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static int qeth_core_prepare(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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if (card->discipline.ccwgdriver &&
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card->discipline.ccwgdriver->prepare)
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return card->discipline.ccwgdriver->prepare(gdev);
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if (card->discipline && card->discipline->prepare)
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return card->discipline->prepare(gdev);
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return 0;
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}
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static void qeth_core_complete(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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if (card->discipline.ccwgdriver &&
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card->discipline.ccwgdriver->complete)
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card->discipline.ccwgdriver->complete(gdev);
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if (card->discipline && card->discipline->complete)
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card->discipline->complete(gdev);
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}
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static int qeth_core_freeze(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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if (card->discipline.ccwgdriver &&
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card->discipline.ccwgdriver->freeze)
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return card->discipline.ccwgdriver->freeze(gdev);
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if (card->discipline && card->discipline->freeze)
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return card->discipline->freeze(gdev);
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return 0;
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}
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static int qeth_core_thaw(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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if (card->discipline.ccwgdriver &&
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card->discipline.ccwgdriver->thaw)
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return card->discipline.ccwgdriver->thaw(gdev);
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if (card->discipline && card->discipline->thaw)
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return card->discipline->thaw(gdev);
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return 0;
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}
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static int qeth_core_restore(struct ccwgroup_device *gdev)
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{
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struct qeth_card *card = dev_get_drvdata(&gdev->dev);
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if (card->discipline.ccwgdriver &&
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card->discipline.ccwgdriver->restore)
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return card->discipline.ccwgdriver->restore(gdev);
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if (card->discipline && card->discipline->restore)
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return card->discipline->restore(gdev);
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return 0;
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}
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@ -434,8 +434,8 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
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goto out;
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else {
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card->info.mac_bits = 0;
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if (card->discipline.ccwgdriver) {
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card->discipline.ccwgdriver->remove(card->gdev);
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if (card->discipline) {
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card->discipline->remove(card->gdev);
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qeth_core_free_discipline(card);
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}
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}
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@ -444,7 +444,7 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
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if (rc)
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goto out;
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rc = card->discipline.ccwgdriver->probe(card->gdev);
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rc = card->discipline->setup(card->gdev);
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out:
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mutex_unlock(&card->discipline_mutex);
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return rc ? rc : count;
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@ -882,12 +882,6 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
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INIT_LIST_HEAD(&card->mc_list);
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card->options.layer2 = 1;
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card->info.hwtrap = 0;
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card->discipline.start_poll = qeth_qdio_start_poll;
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card->discipline.input_handler = (qdio_handler_t *)
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qeth_qdio_input_handler;
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card->discipline.output_handler = (qdio_handler_t *)
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qeth_qdio_output_handler;
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card->discipline.recover = qeth_l2_recover;
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return 0;
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}
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@ -1227,8 +1221,12 @@ out:
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return rc;
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}
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struct ccwgroup_driver qeth_l2_ccwgroup_driver = {
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.probe = qeth_l2_probe_device,
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struct qeth_discipline qeth_l2_discipline = {
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.start_poll = qeth_qdio_start_poll,
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.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
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.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
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.recover = qeth_l2_recover,
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.setup = qeth_l2_probe_device,
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.remove = qeth_l2_remove_device,
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.set_online = qeth_l2_set_online,
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.set_offline = qeth_l2_set_offline,
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@ -1237,7 +1235,7 @@ struct ccwgroup_driver qeth_l2_ccwgroup_driver = {
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.thaw = qeth_l2_pm_resume,
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.restore = qeth_l2_pm_resume,
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};
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EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver);
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EXPORT_SYMBOL_GPL(qeth_l2_discipline);
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static int qeth_osn_send_control_data(struct qeth_card *card, int len,
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struct qeth_cmd_buffer *iob)
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@ -3376,12 +3376,6 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
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qeth_l3_create_device_attributes(&gdev->dev);
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card->options.layer2 = 0;
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card->info.hwtrap = 0;
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card->discipline.start_poll = qeth_qdio_start_poll;
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card->discipline.input_handler = (qdio_handler_t *)
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qeth_qdio_input_handler;
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card->discipline.output_handler = (qdio_handler_t *)
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qeth_qdio_output_handler;
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card->discipline.recover = qeth_l3_recover;
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return 0;
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}
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@ -3656,8 +3650,12 @@ out:
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return rc;
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}
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struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
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.probe = qeth_l3_probe_device,
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struct qeth_discipline qeth_l3_discipline = {
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.start_poll = qeth_qdio_start_poll,
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.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
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.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
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.recover = qeth_l3_recover,
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.setup = qeth_l3_probe_device,
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.remove = qeth_l3_remove_device,
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.set_online = qeth_l3_set_online,
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.set_offline = qeth_l3_set_offline,
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@ -3666,7 +3664,7 @@ struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
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.thaw = qeth_l3_pm_resume,
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.restore = qeth_l3_pm_resume,
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};
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EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
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EXPORT_SYMBOL_GPL(qeth_l3_discipline);
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static int qeth_l3_ip_event(struct notifier_block *this,
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unsigned long event, void *ptr)
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