diff options
Diffstat (limited to 'drivers/s390/net/qeth_l2_main.c')
| -rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 412 |
1 files changed, 181 insertions, 231 deletions
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index e12ac32b8b47..1852d0a3c10a 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -28,17 +28,6 @@ #include "qeth_core.h" #include "qeth_l2.h" -static void qeth_bridgeport_query_support(struct qeth_card *card); -static void qeth_bridge_state_change(struct qeth_card *card, - struct qeth_ipa_cmd *cmd); -static void qeth_addr_change_event(struct qeth_card *card, - struct qeth_ipa_cmd *cmd); -static bool qeth_bridgeport_is_in_use(struct qeth_card *card); -static void qeth_l2_vnicc_set_defaults(struct qeth_card *card); -static void qeth_l2_vnicc_init(struct qeth_card *card); -static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, - u32 *timeout); - static int qeth_l2_setdelmac_makerc(struct qeth_card *card, u16 retcode) { int rc; @@ -304,36 +293,6 @@ static void qeth_l2_dev2br_fdb_flush(struct qeth_card *card) card->dev, &info.info, NULL); } -static void qeth_l2_stop_card(struct qeth_card *card) -{ - struct qeth_priv *priv = netdev_priv(card->dev); - - QETH_CARD_TEXT(card, 2, "stopcard"); - - qeth_set_allowed_threads(card, 0, 1); - - cancel_work_sync(&card->rx_mode_work); - qeth_l2_drain_rx_mode_cache(card); - - if (card->state == CARD_STATE_SOFTSETUP) { - qeth_clear_ipacmd_list(card); - card->state = CARD_STATE_DOWN; - } - - qeth_qdio_clear_card(card, 0); - qeth_drain_output_queues(card); - qeth_clear_working_pool_list(card); - qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); - qeth_flush_local_addrs(card); - card->info.promisc_mode = 0; - - if (priv->brport_features & BR_LEARNING_SYNC) { - rtnl_lock(); - qeth_l2_dev2br_fdb_flush(card); - rtnl_unlock(); - } -} - static int qeth_l2_request_initial_mac(struct qeth_card *card) { int rc = 0; @@ -617,49 +576,6 @@ static u16 qeth_l2_select_queue(struct net_device *dev, struct sk_buff *skb, qeth_get_priority_queue(card, skb); } -static const struct device_type qeth_l2_devtype = { - .name = "qeth_layer2", - .groups = qeth_l2_attr_groups, -}; - -static int qeth_l2_probe_device(struct ccwgroup_device *gdev) -{ - struct qeth_card *card = dev_get_drvdata(&gdev->dev); - int rc; - - if (IS_OSN(card)) - dev_notice(&gdev->dev, "OSN support will be dropped in 2021\n"); - - qeth_l2_vnicc_set_defaults(card); - mutex_init(&card->sbp_lock); - - if (gdev->dev.type == &qeth_generic_devtype) { - rc = qeth_l2_create_device_attributes(&gdev->dev); - if (rc) - return rc; - } - - INIT_WORK(&card->rx_mode_work, qeth_l2_rx_mode_work); - return 0; -} - -static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) -{ - struct qeth_card *card = dev_get_drvdata(&cgdev->dev); - - if (cgdev->dev.type == &qeth_generic_devtype) - qeth_l2_remove_device_attributes(&cgdev->dev); - qeth_set_allowed_threads(card, 0, 1); - wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - - if (cgdev->state == CCWGROUP_ONLINE) - qeth_set_offline(card, false); - - cancel_work_sync(&card->close_dev_work); - if (card->dev->reg_state == NETREG_REGISTERED) - unregister_netdev(card->dev); -} - static void qeth_l2_set_rx_mode(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; @@ -1140,134 +1056,6 @@ static void qeth_l2_enable_brport_features(struct qeth_card *card) } } -static int qeth_l2_set_online(struct qeth_card *card) -{ - struct ccwgroup_device *gdev = card->gdev; - struct net_device *dev = card->dev; - int rc = 0; - bool carrier_ok; - - rc = qeth_core_hardsetup_card(card, &carrier_ok); - if (rc) { - QETH_CARD_TEXT_(card, 2, "2err%04x", rc); - rc = -ENODEV; - goto out_remove; - } - - /* query before bridgeport_notification may be enabled */ - qeth_l2_detect_dev2br_support(card); - - mutex_lock(&card->sbp_lock); - qeth_bridgeport_query_support(card); - if (card->options.sbp.supported_funcs) { - qeth_l2_setup_bridgeport_attrs(card); - dev_info(&card->gdev->dev, - "The device represents a Bridge Capable Port\n"); - } - mutex_unlock(&card->sbp_lock); - - qeth_l2_register_dev_addr(card); - - /* for the rx_bcast characteristic, init VNICC after setmac */ - qeth_l2_vnicc_init(card); - - qeth_trace_features(card); - qeth_l2_trace_features(card); - - qeth_print_status_message(card); - - /* softsetup */ - QETH_CARD_TEXT(card, 2, "softsetp"); - - card->state = CARD_STATE_SOFTSETUP; - - qeth_set_allowed_threads(card, 0xffffffff, 0); - - if (dev->reg_state != NETREG_REGISTERED) { - rc = qeth_l2_setup_netdev(card); - if (rc) - goto out_remove; - - if (carrier_ok) - netif_carrier_on(dev); - } else { - rtnl_lock(); - if (carrier_ok) - netif_carrier_on(dev); - else - netif_carrier_off(dev); - - netif_device_attach(dev); - qeth_enable_hw_features(dev); - qeth_l2_enable_brport_features(card); - - if (card->info.open_when_online) { - card->info.open_when_online = 0; - dev_open(dev, NULL); - } - rtnl_unlock(); - } - /* let user_space know that device is online */ - kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); - return 0; - -out_remove: - qeth_l2_stop_card(card); - qeth_stop_channel(&card->data); - qeth_stop_channel(&card->write); - qeth_stop_channel(&card->read); - qdio_free(CARD_DDEV(card)); - return rc; -} - -static void qeth_l2_set_offline(struct qeth_card *card) -{ - qeth_l2_stop_card(card); -} - -static int __init qeth_l2_init(void) -{ - pr_info("register layer 2 discipline\n"); - return 0; -} - -static void __exit qeth_l2_exit(void) -{ - pr_info("unregister layer 2 discipline\n"); -} - -/* Returns zero if the command is successfully "consumed" */ -static int qeth_l2_control_event(struct qeth_card *card, - struct qeth_ipa_cmd *cmd) -{ - switch (cmd->hdr.command) { - case IPA_CMD_SETBRIDGEPORT_OSA: - case IPA_CMD_SETBRIDGEPORT_IQD: - if (cmd->data.sbp.hdr.command_code == - IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { - qeth_bridge_state_change(card, cmd); - return 0; - } else - return 1; - case IPA_CMD_ADDRESS_CHANGE_NOTIF: - qeth_addr_change_event(card, cmd); - return 0; - default: - return 1; - } -} - -struct qeth_discipline qeth_l2_discipline = { - .devtype = &qeth_l2_devtype, - .setup = qeth_l2_probe_device, - .remove = qeth_l2_remove_device, - .set_online = qeth_l2_set_online, - .set_offline = qeth_l2_set_offline, - .do_ioctl = NULL, - .control_event_handler = qeth_l2_control_event, -}; -EXPORT_SYMBOL_GPL(qeth_l2_discipline); - #ifdef CONFIG_QETH_OSN static void qeth_osn_assist_cb(struct qeth_card *card, struct qeth_cmd_buffer *iob, @@ -1987,12 +1775,6 @@ int qeth_bridgeport_an_set(struct qeth_card *card, int enable) return rc; } -static bool qeth_bridgeport_is_in_use(struct qeth_card *card) -{ - return (card->options.sbp.role || card->options.sbp.reflect_promisc || - card->options.sbp.hostnotification); -} - /* VNIC Characteristics support */ /* handle VNICC IPA command return codes; convert to error codes */ @@ -2138,6 +1920,19 @@ static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc, return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, timeout); } +/* recover user timeout setting */ +static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, + u32 *timeout) +{ + if (card->options.vnicc.sup_chars & vnicc && + card->options.vnicc.getset_timeout_sup & vnicc && + !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT, + timeout)) + return false; + *timeout = QETH_VNICC_DEFAULT_TIMEOUT; + return true; +} + /* set current VNICC flag state; called from sysfs store function */ int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state) { @@ -2308,19 +2103,6 @@ bool qeth_bridgeport_allowed(struct qeth_card *card) !(priv->brport_features & BR_LEARNING_SYNC)); } -/* recover user timeout setting */ -static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, - u32 *timeout) -{ - if (card->options.vnicc.sup_chars & vnicc && - card->options.vnicc.getset_timeout_sup & vnicc && - !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT, - timeout)) - return false; - *timeout = QETH_VNICC_DEFAULT_TIMEOUT; - return true; -} - /* recover user characteristic setting */ static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, bool enable) @@ -2409,6 +2191,174 @@ static void qeth_l2_vnicc_set_defaults(struct qeth_card *card) card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; } +static const struct device_type qeth_l2_devtype = { + .name = "qeth_layer2", + .groups = qeth_l2_attr_groups, +}; + +static int qeth_l2_probe_device(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + int rc; + + if (IS_OSN(card)) + dev_notice(&gdev->dev, "OSN support will be dropped in 2021\n"); + + qeth_l2_vnicc_set_defaults(card); + mutex_init(&card->sbp_lock); + + if (gdev->dev.type == &qeth_generic_devtype) { + rc = qeth_l2_create_device_attributes(&gdev->dev); + if (rc) + return rc; + } + + INIT_WORK(&card->rx_mode_work, qeth_l2_rx_mode_work); + return 0; +} + +static void qeth_l2_remove_device(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + + if (gdev->dev.type == &qeth_generic_devtype) + qeth_l2_remove_device_attributes(&gdev->dev); + qeth_set_allowed_threads(card, 0, 1); + wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); + + if (gdev->state == CCWGROUP_ONLINE) + qeth_set_offline(card, false); + + cancel_work_sync(&card->close_dev_work); + if (card->dev->reg_state == NETREG_REGISTERED) + unregister_netdev(card->dev); +} + +static int qeth_l2_set_online(struct qeth_card *card, bool carrier_ok) +{ + struct net_device *dev = card->dev; + int rc = 0; + + /* query before bridgeport_notification may be enabled */ + qeth_l2_detect_dev2br_support(card); + + mutex_lock(&card->sbp_lock); + qeth_bridgeport_query_support(card); + if (card->options.sbp.supported_funcs) { + qeth_l2_setup_bridgeport_attrs(card); + dev_info(&card->gdev->dev, + "The device represents a Bridge Capable Port\n"); + } + mutex_unlock(&card->sbp_lock); + + qeth_l2_register_dev_addr(card); + + /* for the rx_bcast characteristic, init VNICC after setmac */ + qeth_l2_vnicc_init(card); + + qeth_l2_trace_features(card); + + /* softsetup */ + QETH_CARD_TEXT(card, 2, "softsetp"); + + card->state = CARD_STATE_SOFTSETUP; + + qeth_set_allowed_threads(card, 0xffffffff, 0); + + if (dev->reg_state != NETREG_REGISTERED) { + rc = qeth_l2_setup_netdev(card); + if (rc) + goto err_setup; + + if (carrier_ok) + netif_carrier_on(dev); + } else { + rtnl_lock(); + if (carrier_ok) + netif_carrier_on(dev); + else + netif_carrier_off(dev); + + netif_device_attach(dev); + qeth_enable_hw_features(dev); + qeth_l2_enable_brport_features(card); + + if (card->info.open_when_online) { + card->info.open_when_online = 0; + dev_open(dev, NULL); + } + rtnl_unlock(); + } + return 0; + +err_setup: + qeth_set_allowed_threads(card, 0, 1); + card->state = CARD_STATE_DOWN; + return rc; +} + +static void qeth_l2_set_offline(struct qeth_card *card) +{ + struct qeth_priv *priv = netdev_priv(card->dev); + + qeth_set_allowed_threads(card, 0, 1); + qeth_l2_drain_rx_mode_cache(card); + + if (card->state == CARD_STATE_SOFTSETUP) + card->state = CARD_STATE_DOWN; + + qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); + if (priv->brport_features & BR_LEARNING_SYNC) { + rtnl_lock(); + qeth_l2_dev2br_fdb_flush(card); + rtnl_unlock(); + } +} + +/* Returns zero if the command is successfully "consumed" */ +static int qeth_l2_control_event(struct qeth_card *card, + struct qeth_ipa_cmd *cmd) +{ + switch (cmd->hdr.command) { + case IPA_CMD_SETBRIDGEPORT_OSA: + case IPA_CMD_SETBRIDGEPORT_IQD: + if (cmd->data.sbp.hdr.command_code == + IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { + qeth_bridge_state_change(card, cmd); + return 0; + } + + return 1; + case IPA_CMD_ADDRESS_CHANGE_NOTIF: + qeth_addr_change_event(card, cmd); + return 0; + default: + return 1; + } +} + +struct qeth_discipline qeth_l2_discipline = { + .devtype = &qeth_l2_devtype, + .setup = qeth_l2_probe_device, + .remove = qeth_l2_remove_device, + .set_online = qeth_l2_set_online, + .set_offline = qeth_l2_set_offline, + .do_ioctl = NULL, + .control_event_handler = qeth_l2_control_event, +}; +EXPORT_SYMBOL_GPL(qeth_l2_discipline); + +static int __init qeth_l2_init(void) +{ + pr_info("register layer 2 discipline\n"); + return 0; +} + +static void __exit qeth_l2_exit(void) +{ + pr_info("unregister layer 2 discipline\n"); +} + module_init(qeth_l2_init); module_exit(qeth_l2_exit); MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); |