| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * 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/slab.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_bridge.h> |
| #include <linux/list.h> |
| #include <linux/hash.h> |
| #include <linux/hashtable.h> |
| #include <net/switchdev.h> |
| #include <asm/chsc.h> |
| #include <asm/css_chars.h> |
| #include <asm/setup.h> |
| #include "qeth_core.h" |
| #include "qeth_l2.h" |
| |
| static int qeth_l2_setdelmac_makerc(struct qeth_card *card, u16 retcode) |
| { |
| int rc; |
| |
| if (retcode) |
| QETH_CARD_TEXT_(card, 2, "err%04x", retcode); |
| switch (retcode) { |
| case IPA_RC_SUCCESS: |
| rc = 0; |
| break; |
| case IPA_RC_L2_UNSUPPORTED_CMD: |
| rc = -EOPNOTSUPP; |
| break; |
| case IPA_RC_L2_ADDR_TABLE_FULL: |
| rc = -ENOSPC; |
| break; |
| case IPA_RC_L2_DUP_MAC: |
| case IPA_RC_L2_DUP_LAYER3_MAC: |
| rc = -EADDRINUSE; |
| break; |
| case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: |
| case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: |
| rc = -EADDRNOTAVAIL; |
| break; |
| case IPA_RC_L2_MAC_NOT_FOUND: |
| rc = -ENOENT; |
| break; |
| default: |
| rc = -EIO; |
| break; |
| } |
| return rc; |
| } |
| |
| static int qeth_l2_send_setdelmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
| |
| return qeth_l2_setdelmac_makerc(card, cmd->hdr.return_code); |
| } |
| |
| static int qeth_l2_send_setdelmac(struct qeth_card *card, const __u8 *mac, |
| enum qeth_ipa_cmds ipacmd) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_CARD_TEXT(card, 2, "L2sdmac"); |
| iob = qeth_ipa_alloc_cmd(card, ipacmd, QETH_PROT_IPV4, |
| IPA_DATA_SIZEOF(setdelmac)); |
| if (!iob) |
| return -ENOMEM; |
| cmd = __ipa_cmd(iob); |
| cmd->data.setdelmac.mac_length = ETH_ALEN; |
| ether_addr_copy(cmd->data.setdelmac.mac, mac); |
| return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelmac_cb, NULL); |
| } |
| |
| static int qeth_l2_send_setmac(struct qeth_card *card, const __u8 *mac) |
| { |
| int rc; |
| |
| QETH_CARD_TEXT(card, 2, "L2Setmac"); |
| rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); |
| if (rc == 0) { |
| dev_info(&card->gdev->dev, |
| "MAC address %pM successfully registered\n", mac); |
| } else { |
| switch (rc) { |
| case -EADDRINUSE: |
| dev_warn(&card->gdev->dev, |
| "MAC address %pM already exists\n", mac); |
| break; |
| case -EADDRNOTAVAIL: |
| dev_warn(&card->gdev->dev, |
| "MAC address %pM is not authorized\n", mac); |
| break; |
| } |
| } |
| return rc; |
| } |
| |
| static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac) |
| { |
| enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? |
| IPA_CMD_SETGMAC : IPA_CMD_SETVMAC; |
| int rc; |
| |
| QETH_CARD_TEXT(card, 2, "L2Wmac"); |
| rc = qeth_l2_send_setdelmac(card, mac, cmd); |
| if (rc == -EADDRINUSE) |
| QETH_DBF_MESSAGE(2, "MAC address %012llx is already registered on device %x\n", |
| ether_addr_to_u64(mac), CARD_DEVID(card)); |
| else if (rc) |
| QETH_DBF_MESSAGE(2, "Failed to register MAC address %012llx on device %x: %d\n", |
| ether_addr_to_u64(mac), CARD_DEVID(card), rc); |
| return rc; |
| } |
| |
| static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac) |
| { |
| enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? |
| IPA_CMD_DELGMAC : IPA_CMD_DELVMAC; |
| int rc; |
| |
| QETH_CARD_TEXT(card, 2, "L2Rmac"); |
| rc = qeth_l2_send_setdelmac(card, mac, cmd); |
| if (rc) |
| QETH_DBF_MESSAGE(2, "Failed to delete MAC address %012llx on device %x: %d\n", |
| ether_addr_to_u64(mac), CARD_DEVID(card), rc); |
| return rc; |
| } |
| |
| static void qeth_l2_drain_rx_mode_cache(struct qeth_card *card) |
| { |
| struct qeth_mac *mac; |
| struct hlist_node *tmp; |
| int i; |
| |
| hash_for_each_safe(card->rx_mode_addrs, i, tmp, mac, hnode) { |
| hash_del(&mac->hnode); |
| kfree(mac); |
| } |
| } |
| |
| static void qeth_l2_fill_header(struct qeth_qdio_out_q *queue, |
| struct qeth_hdr *hdr, struct sk_buff *skb, |
| __be16 proto, unsigned int data_len) |
| { |
| int cast_type = qeth_get_ether_cast_type(skb); |
| struct vlan_ethhdr *veth = vlan_eth_hdr(skb); |
| |
| hdr->hdr.l2.pkt_length = data_len; |
| |
| if (skb_is_gso(skb)) { |
| hdr->hdr.l2.id = QETH_HEADER_TYPE_L2_TSO; |
| } else { |
| hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; |
| if (skb->ip_summed == CHECKSUM_PARTIAL) |
| qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], proto); |
| } |
| |
| /* set byte byte 3 to casting flags */ |
| if (cast_type == RTN_MULTICAST) |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; |
| else if (cast_type == RTN_BROADCAST) |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; |
| else |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
| |
| /* VSWITCH relies on the VLAN |
| * information to be present in |
| * the QDIO header */ |
| if (veth->h_vlan_proto == htons(ETH_P_8021Q)) { |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; |
| hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); |
| } |
| } |
| |
| static int qeth_l2_setdelvlan_makerc(struct qeth_card *card, u16 retcode) |
| { |
| if (retcode) |
| QETH_CARD_TEXT_(card, 2, "err%04x", retcode); |
| |
| switch (retcode) { |
| case IPA_RC_SUCCESS: |
| return 0; |
| case IPA_RC_L2_INVALID_VLAN_ID: |
| return -EINVAL; |
| case IPA_RC_L2_DUP_VLAN_ID: |
| return -EEXIST; |
| case IPA_RC_L2_VLAN_ID_NOT_FOUND: |
| return -ENOENT; |
| case IPA_RC_L2_VLAN_ID_NOT_ALLOWED: |
| return -EPERM; |
| default: |
| return -EIO; |
| } |
| } |
| |
| static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
| |
| QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
| if (cmd->hdr.return_code) { |
| QETH_DBF_MESSAGE(2, "Error in processing VLAN %u on device %x: %#x.\n", |
| cmd->data.setdelvlan.vlan_id, |
| CARD_DEVID(card), cmd->hdr.return_code); |
| QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
| } |
| return qeth_l2_setdelvlan_makerc(card, cmd->hdr.return_code); |
| } |
| |
| static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, |
| enum qeth_ipa_cmds ipacmd) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
| iob = qeth_ipa_alloc_cmd(card, ipacmd, QETH_PROT_IPV4, |
| IPA_DATA_SIZEOF(setdelvlan)); |
| if (!iob) |
| return -ENOMEM; |
| cmd = __ipa_cmd(iob); |
| cmd->data.setdelvlan.vlan_id = i; |
| return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelvlan_cb, NULL); |
| } |
| |
| static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, |
| __be16 proto, u16 vid) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| |
| QETH_CARD_TEXT_(card, 4, "aid:%d", vid); |
| if (!vid) |
| return 0; |
| |
| return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); |
| } |
| |
| static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, |
| __be16 proto, u16 vid) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| |
| QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
| if (!vid) |
| return 0; |
| |
| return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); |
| } |
| |
| static void qeth_l2_set_pnso_mode(struct qeth_card *card, |
| enum qeth_pnso_mode mode) |
| { |
| spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card))); |
| WRITE_ONCE(card->info.pnso_mode, mode); |
| spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card))); |
| |
| if (mode == QETH_PNSO_NONE) |
| drain_workqueue(card->event_wq); |
| } |
| |
| static void qeth_l2_dev2br_fdb_flush(struct qeth_card *card) |
| { |
| struct switchdev_notifier_fdb_info info = {}; |
| |
| QETH_CARD_TEXT(card, 2, "fdbflush"); |
| |
| info.addr = NULL; |
| /* flush all VLANs: */ |
| info.vid = 0; |
| info.added_by_user = false; |
| info.offloaded = true; |
| |
| call_switchdev_notifiers(SWITCHDEV_FDB_FLUSH_TO_BRIDGE, |
| card->dev, &info.info, NULL); |
| } |
| |
| static int qeth_l2_request_initial_mac(struct qeth_card *card) |
| { |
| int rc = 0; |
| |
| QETH_CARD_TEXT(card, 2, "l2reqmac"); |
| |
| if (MACHINE_IS_VM) { |
| rc = qeth_vm_request_mac(card); |
| if (!rc) |
| goto out; |
| QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n", |
| CARD_DEVID(card), rc); |
| QETH_CARD_TEXT_(card, 2, "err%04x", rc); |
| /* fall back to alternative mechanism: */ |
| } |
| |
| rc = qeth_setadpparms_change_macaddr(card); |
| if (!rc) |
| goto out; |
| QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n", |
| CARD_DEVID(card), rc); |
| QETH_CARD_TEXT_(card, 2, "1err%04x", rc); |
| |
| /* Fall back once more, but some devices don't support a custom MAC |
| * address: |
| */ |
| if (IS_OSM(card) || IS_OSX(card)) |
| return (rc) ? rc : -EADDRNOTAVAIL; |
| eth_hw_addr_random(card->dev); |
| |
| out: |
| QETH_CARD_HEX(card, 2, card->dev->dev_addr, card->dev->addr_len); |
| return 0; |
| } |
| |
| static void qeth_l2_register_dev_addr(struct qeth_card *card) |
| { |
| if (!is_valid_ether_addr(card->dev->dev_addr)) |
| qeth_l2_request_initial_mac(card); |
| |
| if (!qeth_l2_send_setmac(card, card->dev->dev_addr)) |
| card->info.dev_addr_is_registered = 1; |
| else |
| card->info.dev_addr_is_registered = 0; |
| } |
| |
| static int qeth_l2_validate_addr(struct net_device *dev) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| |
| if (card->info.dev_addr_is_registered) |
| return eth_validate_addr(dev); |
| |
| QETH_CARD_TEXT(card, 4, "nomacadr"); |
| return -EPERM; |
| } |
| |
| static int qeth_l2_set_mac_address(struct net_device *dev, void *p) |
| { |
| struct sockaddr *addr = p; |
| struct qeth_card *card = dev->ml_priv; |
| u8 old_addr[ETH_ALEN]; |
| int rc = 0; |
| |
| QETH_CARD_TEXT(card, 3, "setmac"); |
| |
| if (IS_OSM(card) || IS_OSX(card)) { |
| QETH_CARD_TEXT(card, 3, "setmcTYP"); |
| return -EOPNOTSUPP; |
| } |
| QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| /* don't register the same address twice */ |
| if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) && |
| card->info.dev_addr_is_registered) |
| return 0; |
| |
| /* add the new address, switch over, drop the old */ |
| rc = qeth_l2_send_setmac(card, addr->sa_data); |
| if (rc) |
| return rc; |
| ether_addr_copy(old_addr, dev->dev_addr); |
| eth_hw_addr_set(dev, addr->sa_data); |
| |
| if (card->info.dev_addr_is_registered) |
| qeth_l2_remove_mac(card, old_addr); |
| card->info.dev_addr_is_registered = 1; |
| return 0; |
| } |
| |
| static void qeth_l2_promisc_to_bridge(struct qeth_card *card, bool enable) |
| { |
| int role; |
| int rc; |
| |
| QETH_CARD_TEXT(card, 3, "pmisc2br"); |
| |
| if (enable) { |
| if (card->options.sbp.reflect_promisc_primary) |
| role = QETH_SBP_ROLE_PRIMARY; |
| else |
| role = QETH_SBP_ROLE_SECONDARY; |
| } else |
| role = QETH_SBP_ROLE_NONE; |
| |
| rc = qeth_bridgeport_setrole(card, role); |
| QETH_CARD_TEXT_(card, 2, "bpm%c%04x", enable ? '+' : '-', rc); |
| if (!rc) { |
| card->options.sbp.role = role; |
| card->info.promisc_mode = enable; |
| } |
| } |
| |
| static void qeth_l2_set_promisc_mode(struct qeth_card *card) |
| { |
| bool enable = card->dev->flags & IFF_PROMISC; |
| |
| if (card->info.promisc_mode == enable) |
| return; |
| |
| if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) { |
| qeth_setadp_promisc_mode(card, enable); |
| } else { |
| mutex_lock(&card->sbp_lock); |
| if (card->options.sbp.reflect_promisc) |
| qeth_l2_promisc_to_bridge(card, enable); |
| mutex_unlock(&card->sbp_lock); |
| } |
| } |
| |
| /* New MAC address is added to the hash table and marked to be written on card |
| * only if there is not in the hash table storage already |
| * |
| */ |
| static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) |
| { |
| u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2])); |
| struct qeth_mac *mac; |
| |
| hash_for_each_possible(card->rx_mode_addrs, mac, hnode, mac_hash) { |
| if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) { |
| mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING; |
| return; |
| } |
| } |
| |
| mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC); |
| if (!mac) |
| return; |
| |
| ether_addr_copy(mac->mac_addr, ha->addr); |
| mac->disp_flag = QETH_DISP_ADDR_ADD; |
| |
| hash_add(card->rx_mode_addrs, &mac->hnode, mac_hash); |
| } |
| |
| static void qeth_l2_rx_mode_work(struct work_struct *work) |
| { |
| struct qeth_card *card = container_of(work, struct qeth_card, |
| rx_mode_work); |
| struct net_device *dev = card->dev; |
| struct netdev_hw_addr *ha; |
| struct qeth_mac *mac; |
| struct hlist_node *tmp; |
| int i; |
| int rc; |
| |
| QETH_CARD_TEXT(card, 3, "setmulti"); |
| |
| netif_addr_lock_bh(dev); |
| netdev_for_each_mc_addr(ha, dev) |
| qeth_l2_add_mac(card, ha); |
| netdev_for_each_uc_addr(ha, dev) |
| qeth_l2_add_mac(card, ha); |
| netif_addr_unlock_bh(dev); |
| |
| hash_for_each_safe(card->rx_mode_addrs, i, tmp, mac, hnode) { |
| switch (mac->disp_flag) { |
| case QETH_DISP_ADDR_DELETE: |
| qeth_l2_remove_mac(card, mac->mac_addr); |
| hash_del(&mac->hnode); |
| kfree(mac); |
| break; |
| case QETH_DISP_ADDR_ADD: |
| rc = qeth_l2_write_mac(card, mac->mac_addr); |
| if (rc) { |
| hash_del(&mac->hnode); |
| kfree(mac); |
| break; |
| } |
| fallthrough; |
| default: |
| /* for next call to set_rx_mode(): */ |
| mac->disp_flag = QETH_DISP_ADDR_DELETE; |
| } |
| } |
| |
| qeth_l2_set_promisc_mode(card); |
| } |
| |
| static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, |
| struct net_device *dev) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| u16 txq = skb_get_queue_mapping(skb); |
| struct qeth_qdio_out_q *queue; |
| int rc; |
| |
| if (!skb_is_gso(skb)) |
| qdisc_skb_cb(skb)->pkt_len = skb->len; |
| if (IS_IQD(card)) |
| txq = qeth_iqd_translate_txq(dev, txq); |
| queue = card->qdio.out_qs[txq]; |
| |
| rc = qeth_xmit(card, skb, queue, vlan_get_protocol(skb), |
| qeth_l2_fill_header); |
| if (!rc) |
| return NETDEV_TX_OK; |
| |
| QETH_TXQ_STAT_INC(queue, tx_dropped); |
| kfree_skb(skb); |
| return NETDEV_TX_OK; |
| } |
| |
| static u16 qeth_l2_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, |
| struct net_device *sb_dev) |
| { |
| return qeth_iqd_select_queue(dev, skb, qeth_get_ether_cast_type(skb), |
| sb_dev); |
| } |
| |
| static void qeth_l2_set_rx_mode(struct net_device *dev) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| |
| schedule_work(&card->rx_mode_work); |
| } |
| |
| /** |
| * qeth_l2_pnso() - perform network subchannel operation |
| * @card: qeth_card structure pointer |
| * @oc: Operation Code |
| * @cnc: Boolean Change-Notification Control |
| * @cb: Callback function will be executed for each element |
| * of the address list |
| * @priv: Pointer to pass to the callback function. |
| * |
| * Collects network information in a network address list and calls the |
| * callback function for every entry in the list. If "change-notification- |
| * control" is set, further changes in the address list will be reported |
| * via the IPA command. |
| */ |
| static int qeth_l2_pnso(struct qeth_card *card, u8 oc, int cnc, |
| void (*cb)(void *priv, struct chsc_pnso_naid_l2 *entry), |
| void *priv) |
| { |
| struct ccw_device *ddev = CARD_DDEV(card); |
| struct chsc_pnso_area *rr; |
| u32 prev_instance = 0; |
| int isfirstblock = 1; |
| int i, size, elems; |
| int rc; |
| |
| rr = (struct chsc_pnso_area *)get_zeroed_page(GFP_KERNEL); |
| if (rr == NULL) |
| return -ENOMEM; |
| do { |
| QETH_CARD_TEXT(card, 2, "PNSO"); |
| /* on the first iteration, naihdr.resume_token will be zero */ |
| rc = ccw_device_pnso(ddev, rr, oc, rr->naihdr.resume_token, |
| cnc); |
| if (rc) |
| continue; |
| if (cb == NULL) |
| continue; |
| |
| size = rr->naihdr.naids; |
| if (size != sizeof(struct chsc_pnso_naid_l2)) { |
| WARN_ON_ONCE(1); |
| continue; |
| } |
| |
| elems = (rr->response.length - sizeof(struct chsc_header) - |
| sizeof(struct chsc_pnso_naihdr)) / size; |
| |
| if (!isfirstblock && (rr->naihdr.instance != prev_instance)) { |
| /* Inform the caller that they need to scrap */ |
| /* the data that was already reported via cb */ |
| rc = -EAGAIN; |
| break; |
| } |
| isfirstblock = 0; |
| prev_instance = rr->naihdr.instance; |
| for (i = 0; i < elems; i++) |
| (*cb)(priv, &rr->entries[i]); |
| } while ((rc == -EBUSY) || (!rc && /* list stored */ |
| /* resume token is non-zero => list incomplete */ |
| (rr->naihdr.resume_token.t1 || rr->naihdr.resume_token.t2))); |
| |
| if (rc) |
| QETH_CARD_TEXT_(card, 2, "PNrp%04x", rr->response.code); |
| |
| free_page((unsigned long)rr); |
| return rc; |
| } |
| |
| static bool qeth_is_my_net_if_token(struct qeth_card *card, |
| struct net_if_token *token) |
| { |
| return ((card->info.ddev_devno == token->devnum) && |
| (card->info.cssid == token->cssid) && |
| (card->info.iid == token->iid) && |
| (card->info.ssid == token->ssid) && |
| (card->info.chpid == token->chpid) && |
| (card->info.chid == token->chid)); |
| } |
| |
| /** |
| * qeth_l2_dev2br_fdb_notify() - update fdb of master bridge |
| * @card: qeth_card structure pointer |
| * @code: event bitmask: high order bit 0x80 set to |
| * 1 - removal of an object |
| * 0 - addition of an object |
| * Object type(s): |
| * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC |
| * @token: "network token" structure identifying 'physical' location |
| * of the target |
| * @addr_lnid: structure with MAC address and VLAN ID of the target |
| */ |
| static void qeth_l2_dev2br_fdb_notify(struct qeth_card *card, u8 code, |
| struct net_if_token *token, |
| struct mac_addr_lnid *addr_lnid) |
| { |
| struct switchdev_notifier_fdb_info info = {}; |
| u8 ntfy_mac[ETH_ALEN]; |
| |
| ether_addr_copy(ntfy_mac, addr_lnid->mac); |
| /* Ignore VLAN only changes */ |
| if (!(code & IPA_ADDR_CHANGE_CODE_MACADDR)) |
| return; |
| /* Ignore mcast entries */ |
| if (is_multicast_ether_addr(ntfy_mac)) |
| return; |
| /* Ignore my own addresses */ |
| if (qeth_is_my_net_if_token(card, token)) |
| return; |
| |
| info.addr = ntfy_mac; |
| /* don't report VLAN IDs */ |
| info.vid = 0; |
| info.added_by_user = false; |
| info.offloaded = true; |
| |
| if (code & IPA_ADDR_CHANGE_CODE_REMOVAL) { |
| call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, |
| card->dev, &info.info, NULL); |
| QETH_CARD_TEXT(card, 4, "andelmac"); |
| QETH_CARD_TEXT_(card, 4, |
| "mc%012llx", ether_addr_to_u64(ntfy_mac)); |
| } else { |
| call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE, |
| card->dev, &info.info, NULL); |
| QETH_CARD_TEXT(card, 4, "anaddmac"); |
| QETH_CARD_TEXT_(card, 4, |
| "mc%012llx", ether_addr_to_u64(ntfy_mac)); |
| } |
| } |
| |
| static void qeth_l2_dev2br_an_set_cb(void *priv, |
| struct chsc_pnso_naid_l2 *entry) |
| { |
| u8 code = IPA_ADDR_CHANGE_CODE_MACADDR; |
| struct qeth_card *card = priv; |
| |
| if (entry->addr_lnid.lnid < VLAN_N_VID) |
| code |= IPA_ADDR_CHANGE_CODE_VLANID; |
| qeth_l2_dev2br_fdb_notify(card, code, |
| (struct net_if_token *)&entry->nit, |
| (struct mac_addr_lnid *)&entry->addr_lnid); |
| } |
| |
| /** |
| * qeth_l2_dev2br_an_set() - |
| * Enable or disable 'dev to bridge network address notification' |
| * @card: qeth_card structure pointer |
| * @enable: Enable or disable 'dev to bridge network address notification' |
| * |
| * Returns negative errno-compatible error indication or 0 on success. |
| * |
| * On enable, emits a series of address notifications for all |
| * currently registered hosts. |
| */ |
| static int qeth_l2_dev2br_an_set(struct qeth_card *card, bool enable) |
| { |
| int rc; |
| |
| if (enable) { |
| QETH_CARD_TEXT(card, 2, "anseton"); |
| rc = qeth_l2_pnso(card, PNSO_OC_NET_ADDR_INFO, 1, |
| qeth_l2_dev2br_an_set_cb, card); |
| if (rc == -EAGAIN) |
| /* address notification enabled, but inconsistent |
| * addresses reported -> disable address notification |
| */ |
| qeth_l2_pnso(card, PNSO_OC_NET_ADDR_INFO, 0, |
| NULL, NULL); |
| } else { |
| QETH_CARD_TEXT(card, 2, "ansetoff"); |
| rc = qeth_l2_pnso(card, PNSO_OC_NET_ADDR_INFO, 0, NULL, NULL); |
| } |
| |
| return rc; |
| } |
| |
| struct qeth_l2_br2dev_event_work { |
| struct work_struct work; |
| struct net_device *br_dev; |
| struct net_device *lsync_dev; |
| struct net_device *dst_dev; |
| unsigned long event; |
| unsigned char addr[ETH_ALEN]; |
| }; |
| |
| static const struct net_device_ops qeth_l2_iqd_netdev_ops; |
| static const struct net_device_ops qeth_l2_osa_netdev_ops; |
| |
| static bool qeth_l2_must_learn(struct net_device *netdev, |
| struct net_device *dstdev) |
| { |
| struct qeth_priv *priv; |
| |
| priv = netdev_priv(netdev); |
| return (netdev != dstdev && |
| (priv->brport_features & BR_LEARNING_SYNC) && |
| !(br_port_flag_is_set(netdev, BR_ISOLATED) && |
| br_port_flag_is_set(dstdev, BR_ISOLATED)) && |
| (netdev->netdev_ops == &qeth_l2_iqd_netdev_ops || |
| netdev->netdev_ops == &qeth_l2_osa_netdev_ops)); |
| } |
| |
| /** |
| * qeth_l2_br2dev_worker() - update local MACs |
| * @work: bridge to device FDB update |
| * |
| * Update local MACs of a learning_sync bridgeport so it can receive |
| * messages for a destination port. |
| * In case of an isolated learning_sync port, also update its isolated |
| * siblings. |
| */ |
| static void qeth_l2_br2dev_worker(struct work_struct *work) |
| { |
| struct qeth_l2_br2dev_event_work *br2dev_event_work = |
| container_of(work, struct qeth_l2_br2dev_event_work, work); |
| struct net_device *lsyncdev = br2dev_event_work->lsync_dev; |
| struct net_device *dstdev = br2dev_event_work->dst_dev; |
| struct net_device *brdev = br2dev_event_work->br_dev; |
| unsigned long event = br2dev_event_work->event; |
| unsigned char *addr = br2dev_event_work->addr; |
| struct qeth_card *card = lsyncdev->ml_priv; |
| struct net_device *lowerdev; |
| struct list_head *iter; |
| int err = 0; |
| |
| QETH_CARD_TEXT_(card, 4, "b2dw%04lx", event); |
| QETH_CARD_TEXT_(card, 4, "ma%012llx", ether_addr_to_u64(addr)); |
| |
| rcu_read_lock(); |
| /* Verify preconditions are still valid: */ |
| if (!netif_is_bridge_port(lsyncdev) || |
| brdev != netdev_master_upper_dev_get_rcu(lsyncdev)) |
| goto unlock; |
| if (!qeth_l2_must_learn(lsyncdev, dstdev)) |
| goto unlock; |
| |
| if (br_port_flag_is_set(lsyncdev, BR_ISOLATED)) { |
| /* Update lsyncdev and its isolated sibling(s): */ |
| iter = &brdev->adj_list.lower; |
| lowerdev = netdev_next_lower_dev_rcu(brdev, &iter); |
| while (lowerdev) { |
| if (br_port_flag_is_set(lowerdev, BR_ISOLATED)) { |
| switch (event) { |
| case SWITCHDEV_FDB_ADD_TO_DEVICE: |
| err = dev_uc_add(lowerdev, addr); |
| break; |
| case SWITCHDEV_FDB_DEL_TO_DEVICE: |
| err = dev_uc_del(lowerdev, addr); |
| break; |
| default: |
| break; |
| } |
| if (err) { |
| QETH_CARD_TEXT(card, 2, "b2derris"); |
| QETH_CARD_TEXT_(card, 2, |
| "err%02lx%03d", event, |
| lowerdev->ifindex); |
| } |
| } |
| lowerdev = netdev_next_lower_dev_rcu(brdev, &iter); |
| } |
| } else { |
| switch (event) { |
| case SWITCHDEV_FDB_ADD_TO_DEVICE: |
| err = dev_uc_add(lsyncdev, addr); |
| break; |
| case SWITCHDEV_FDB_DEL_TO_DEVICE: |
| err = dev_uc_del(lsyncdev, addr); |
| break; |
| default: |
| break; |
| } |
| if (err) |
| QETH_CARD_TEXT_(card, 2, "b2derr%02lx", event); |
| } |
| |
| unlock: |
| rcu_read_unlock(); |
| dev_put(brdev); |
| dev_put(lsyncdev); |
| dev_put(dstdev); |
| kfree(br2dev_event_work); |
| } |
| |
| static int qeth_l2_br2dev_queue_work(struct net_device *brdev, |
| struct net_device *lsyncdev, |
| struct net_device *dstdev, |
| unsigned long event, |
| const unsigned char *addr) |
| { |
| struct qeth_l2_br2dev_event_work *worker_data; |
| struct qeth_card *card; |
| |
| worker_data = kzalloc(sizeof(*worker_data), GFP_ATOMIC); |
| if (!worker_data) |
| return -ENOMEM; |
| INIT_WORK(&worker_data->work, qeth_l2_br2dev_worker); |
| worker_data->br_dev = brdev; |
| worker_data->lsync_dev = lsyncdev; |
| worker_data->dst_dev = dstdev; |
| worker_data->event = event; |
| ether_addr_copy(worker_data->addr, addr); |
| |
| card = lsyncdev->ml_priv; |
| /* Take a reference on the sw port devices and the bridge */ |
| dev_hold(brdev); |
| dev_hold(lsyncdev); |
| dev_hold(dstdev); |
| queue_work(card->event_wq, &worker_data->work); |
| return 0; |
| } |
| |
| /* Called under rtnl_lock */ |
| static int qeth_l2_switchdev_event(struct notifier_block *unused, |
| unsigned long event, void *ptr) |
| { |
| struct net_device *dstdev, *brdev, *lowerdev; |
| struct switchdev_notifier_fdb_info *fdb_info; |
| struct switchdev_notifier_info *info = ptr; |
| struct list_head *iter; |
| struct qeth_card *card; |
| int rc; |
| |
| if (!(event == SWITCHDEV_FDB_ADD_TO_DEVICE || |
| event == SWITCHDEV_FDB_DEL_TO_DEVICE)) |
| return NOTIFY_DONE; |
| |
| dstdev = switchdev_notifier_info_to_dev(info); |
| brdev = netdev_master_upper_dev_get_rcu(dstdev); |
| if (!brdev || !netif_is_bridge_master(brdev)) |
| return NOTIFY_DONE; |
| fdb_info = container_of(info, |
| struct switchdev_notifier_fdb_info, |
| info); |
| iter = &brdev->adj_list.lower; |
| lowerdev = netdev_next_lower_dev_rcu(brdev, &iter); |
| while (lowerdev) { |
| if (qeth_l2_must_learn(lowerdev, dstdev)) { |
| card = lowerdev->ml_priv; |
| QETH_CARD_TEXT_(card, 4, "b2dqw%03lx", event); |
| rc = qeth_l2_br2dev_queue_work(brdev, lowerdev, |
| dstdev, event, |
| fdb_info->addr); |
| if (rc) { |
| QETH_CARD_TEXT(card, 2, "b2dqwerr"); |
| return NOTIFY_BAD; |
| } |
| } |
| lowerdev = netdev_next_lower_dev_rcu(brdev, &iter); |
| } |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block qeth_l2_sw_notifier = { |
| .notifier_call = qeth_l2_switchdev_event, |
| }; |
| |
| static refcount_t qeth_l2_switchdev_notify_refcnt; |
| |
| /* Called under rtnl_lock */ |
| static void qeth_l2_br2dev_get(void) |
| { |
| int rc; |
| |
| if (!refcount_inc_not_zero(&qeth_l2_switchdev_notify_refcnt)) { |
| rc = register_switchdev_notifier(&qeth_l2_sw_notifier); |
| if (rc) { |
| QETH_DBF_MESSAGE(2, |
| "failed to register qeth_l2_sw_notifier: %d\n", |
| rc); |
| } else { |
| refcount_set(&qeth_l2_switchdev_notify_refcnt, 1); |
| QETH_DBF_MESSAGE(2, "qeth_l2_sw_notifier registered\n"); |
| } |
| } |
| QETH_DBF_TEXT_(SETUP, 2, "b2d+%04d", |
| qeth_l2_switchdev_notify_refcnt.refs.counter); |
| } |
| |
| /* Called under rtnl_lock */ |
| static void qeth_l2_br2dev_put(void) |
| { |
| int rc; |
| |
| if (refcount_dec_and_test(&qeth_l2_switchdev_notify_refcnt)) { |
| rc = unregister_switchdev_notifier(&qeth_l2_sw_notifier); |
| if (rc) { |
| QETH_DBF_MESSAGE(2, |
| "failed to unregister qeth_l2_sw_notifier: %d\n", |
| rc); |
| } else { |
| QETH_DBF_MESSAGE(2, |
| "qeth_l2_sw_notifier unregistered\n"); |
| } |
| } |
| QETH_DBF_TEXT_(SETUP, 2, "b2d-%04d", |
| qeth_l2_switchdev_notify_refcnt.refs.counter); |
| } |
| |
| static int qeth_l2_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
| struct net_device *dev, u32 filter_mask, |
| int nlflags) |
| { |
| struct qeth_priv *priv = netdev_priv(dev); |
| struct qeth_card *card = dev->ml_priv; |
| u16 mode = BRIDGE_MODE_UNDEF; |
| |
| /* Do not even show qeth devs that cannot do bridge_setlink */ |
| if (!priv->brport_hw_features || !netif_device_present(dev) || |
| qeth_bridgeport_is_in_use(card)) |
| return -EOPNOTSUPP; |
| |
| return ndo_dflt_bridge_getlink(skb, pid, seq, dev, |
| mode, priv->brport_features, |
| priv->brport_hw_features, |
| nlflags, filter_mask, NULL); |
| } |
| |
| static const struct nla_policy qeth_brport_policy[IFLA_BRPORT_MAX + 1] = { |
| [IFLA_BRPORT_LEARNING_SYNC] = { .type = NLA_U8 }, |
| }; |
| |
| /** |
| * qeth_l2_bridge_setlink() - set bridgeport attributes |
| * @dev: netdevice |
| * @nlh: netlink message header |
| * @flags: bridge flags (here: BRIDGE_FLAGS_SELF) |
| * @extack: extended ACK report struct |
| * |
| * Called under rtnl_lock |
| */ |
| static int qeth_l2_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, |
| u16 flags, struct netlink_ext_ack *extack) |
| { |
| struct qeth_priv *priv = netdev_priv(dev); |
| struct nlattr *bp_tb[IFLA_BRPORT_MAX + 1]; |
| struct qeth_card *card = dev->ml_priv; |
| struct nlattr *attr, *nested_attr; |
| bool enable, has_protinfo = false; |
| int rem1, rem2; |
| int rc; |
| |
| if (!netif_device_present(dev)) |
| return -ENODEV; |
| |
| nlmsg_for_each_attr(attr, nlh, sizeof(struct ifinfomsg), rem1) { |
| if (nla_type(attr) == IFLA_PROTINFO) { |
| rc = nla_parse_nested(bp_tb, IFLA_BRPORT_MAX, attr, |
| qeth_brport_policy, extack); |
| if (rc) |
| return rc; |
| has_protinfo = true; |
| } else if (nla_type(attr) == IFLA_AF_SPEC) { |
| nla_for_each_nested(nested_attr, attr, rem2) { |
| if (nla_type(nested_attr) == IFLA_BRIDGE_FLAGS) |
| continue; |
| NL_SET_ERR_MSG_ATTR(extack, nested_attr, |
| "Unsupported attribute"); |
| return -EINVAL; |
| } |
| } else { |
| NL_SET_ERR_MSG_ATTR(extack, attr, "Unsupported attribute"); |
| return -EINVAL; |
| } |
| } |
| if (!has_protinfo) |
| return 0; |
| if (!bp_tb[IFLA_BRPORT_LEARNING_SYNC]) |
| return -EINVAL; |
| if (!(priv->brport_hw_features & BR_LEARNING_SYNC)) { |
| NL_SET_ERR_MSG_ATTR(extack, bp_tb[IFLA_BRPORT_LEARNING_SYNC], |
| "Operation not supported by HW"); |
| return -EOPNOTSUPP; |
| } |
| if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) { |
| NL_SET_ERR_MSG_ATTR(extack, bp_tb[IFLA_BRPORT_LEARNING_SYNC], |
| "Requires NET_SWITCHDEV"); |
| return -EOPNOTSUPP; |
| } |
| enable = !!nla_get_u8(bp_tb[IFLA_BRPORT_LEARNING_SYNC]); |
| |
| if (enable == !!(priv->brport_features & BR_LEARNING_SYNC)) |
| return 0; |
| |
| mutex_lock(&card->sbp_lock); |
| /* do not change anything if BridgePort is enabled */ |
| if (qeth_bridgeport_is_in_use(card)) { |
| NL_SET_ERR_MSG(extack, "n/a (BridgePort)"); |
| rc = -EBUSY; |
| } else if (enable) { |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_ADDR_INFO); |
| rc = qeth_l2_dev2br_an_set(card, true); |
| if (rc) { |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); |
| } else { |
| priv->brport_features |= BR_LEARNING_SYNC; |
| qeth_l2_br2dev_get(); |
| } |
| } else { |
| rc = qeth_l2_dev2br_an_set(card, false); |
| if (!rc) { |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); |
| priv->brport_features ^= BR_LEARNING_SYNC; |
| qeth_l2_dev2br_fdb_flush(card); |
| qeth_l2_br2dev_put(); |
| } |
| } |
| mutex_unlock(&card->sbp_lock); |
| |
| return rc; |
| } |
| |
| static const struct net_device_ops qeth_l2_iqd_netdev_ops = { |
| .ndo_open = qeth_open, |
| .ndo_stop = qeth_stop, |
| .ndo_get_stats64 = qeth_get_stats64, |
| .ndo_start_xmit = qeth_l2_hard_start_xmit, |
| .ndo_features_check = qeth_features_check, |
| .ndo_select_queue = qeth_l2_iqd_select_queue, |
| .ndo_validate_addr = qeth_l2_validate_addr, |
| .ndo_set_rx_mode = qeth_l2_set_rx_mode, |
| .ndo_eth_ioctl = qeth_do_ioctl, |
| .ndo_siocdevprivate = qeth_siocdevprivate, |
| .ndo_set_mac_address = qeth_l2_set_mac_address, |
| .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, |
| .ndo_tx_timeout = qeth_tx_timeout, |
| .ndo_fix_features = qeth_fix_features, |
| .ndo_set_features = qeth_set_features, |
| .ndo_bridge_getlink = qeth_l2_bridge_getlink, |
| .ndo_bridge_setlink = qeth_l2_bridge_setlink, |
| }; |
| |
| static const struct net_device_ops qeth_l2_osa_netdev_ops = { |
| .ndo_open = qeth_open, |
| .ndo_stop = qeth_stop, |
| .ndo_get_stats64 = qeth_get_stats64, |
| .ndo_start_xmit = qeth_l2_hard_start_xmit, |
| .ndo_features_check = qeth_features_check, |
| .ndo_select_queue = qeth_osa_select_queue, |
| .ndo_validate_addr = qeth_l2_validate_addr, |
| .ndo_set_rx_mode = qeth_l2_set_rx_mode, |
| .ndo_eth_ioctl = qeth_do_ioctl, |
| .ndo_siocdevprivate = qeth_siocdevprivate, |
| .ndo_set_mac_address = qeth_l2_set_mac_address, |
| .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, |
| .ndo_tx_timeout = qeth_tx_timeout, |
| .ndo_fix_features = qeth_fix_features, |
| .ndo_set_features = qeth_set_features, |
| }; |
| |
| static int qeth_l2_setup_netdev(struct qeth_card *card) |
| { |
| card->dev->netdev_ops = IS_IQD(card) ? &qeth_l2_iqd_netdev_ops : |
| &qeth_l2_osa_netdev_ops; |
| card->dev->needed_headroom = sizeof(struct qeth_hdr); |
| card->dev->priv_flags |= IFF_UNICAST_FLT; |
| |
| if (IS_OSM(card)) { |
| card->dev->features |= NETIF_F_VLAN_CHALLENGED; |
| } else { |
| if (!IS_VM_NIC(card)) |
| card->dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
| card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
| } |
| |
| if (IS_OSD(card) && !IS_VM_NIC(card)) { |
| card->dev->features |= NETIF_F_SG; |
| /* OSA 3S and earlier has no RX/TX support */ |
| if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) { |
| card->dev->hw_features |= NETIF_F_IP_CSUM; |
| card->dev->vlan_features |= NETIF_F_IP_CSUM; |
| } |
| } |
| if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) { |
| card->dev->hw_features |= NETIF_F_IPV6_CSUM; |
| card->dev->vlan_features |= NETIF_F_IPV6_CSUM; |
| } |
| if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) || |
| qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) { |
| card->dev->hw_features |= NETIF_F_RXCSUM; |
| card->dev->vlan_features |= NETIF_F_RXCSUM; |
| } |
| if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { |
| card->dev->hw_features |= NETIF_F_TSO; |
| card->dev->vlan_features |= NETIF_F_TSO; |
| } |
| if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) { |
| card->dev->hw_features |= NETIF_F_TSO6; |
| card->dev->vlan_features |= NETIF_F_TSO6; |
| } |
| |
| if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6)) { |
| card->dev->needed_headroom = sizeof(struct qeth_hdr_tso); |
| netif_keep_dst(card->dev); |
| netif_set_tso_max_size(card->dev, |
| PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1)); |
| } |
| |
| netif_napi_add(card->dev, &card->napi, qeth_poll); |
| return register_netdev(card->dev); |
| } |
| |
| static void qeth_l2_trace_features(struct qeth_card *card) |
| { |
| /* Set BridgePort features */ |
| QETH_CARD_TEXT(card, 2, "featuSBP"); |
| QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs, |
| sizeof(card->options.sbp.supported_funcs)); |
| /* VNIC Characteristics features */ |
| QETH_CARD_TEXT(card, 2, "feaVNICC"); |
| QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars, |
| sizeof(card->options.vnicc.sup_chars)); |
| } |
| |
| static void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card) |
| { |
| if (!card->options.sbp.reflect_promisc && |
| card->options.sbp.role != QETH_SBP_ROLE_NONE) { |
| /* Conditional to avoid spurious error messages */ |
| qeth_bridgeport_setrole(card, card->options.sbp.role); |
| /* Let the callback function refresh the stored role value. */ |
| qeth_bridgeport_query_ports(card, &card->options.sbp.role, |
| NULL); |
| } |
| if (card->options.sbp.hostnotification) { |
| if (qeth_bridgeport_an_set(card, 1)) |
| card->options.sbp.hostnotification = 0; |
| } |
| } |
| |
| /** |
| * qeth_l2_detect_dev2br_support() - |
| * Detect whether this card supports 'dev to bridge fdb network address |
| * change notification' and thus can support the learning_sync bridgeport |
| * attribute |
| * @card: qeth_card structure pointer |
| */ |
| static void qeth_l2_detect_dev2br_support(struct qeth_card *card) |
| { |
| struct qeth_priv *priv = netdev_priv(card->dev); |
| bool dev2br_supported; |
| |
| QETH_CARD_TEXT(card, 2, "d2brsup"); |
| if (!IS_IQD(card)) |
| return; |
| |
| /* dev2br requires valid cssid,iid,chid */ |
| dev2br_supported = card->info.ids_valid && |
| css_general_characteristics.enarf; |
| QETH_CARD_TEXT_(card, 2, "D2Bsup%02x", dev2br_supported); |
| |
| if (dev2br_supported) |
| priv->brport_hw_features |= BR_LEARNING_SYNC; |
| else |
| priv->brport_hw_features &= ~BR_LEARNING_SYNC; |
| } |
| |
| static void qeth_l2_enable_brport_features(struct qeth_card *card) |
| { |
| struct qeth_priv *priv = netdev_priv(card->dev); |
| int rc; |
| |
| if (priv->brport_features & BR_LEARNING_SYNC) { |
| if (priv->brport_hw_features & BR_LEARNING_SYNC) { |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_ADDR_INFO); |
| rc = qeth_l2_dev2br_an_set(card, true); |
| if (rc == -EAGAIN) { |
| /* Recoverable error, retry once */ |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); |
| qeth_l2_dev2br_fdb_flush(card); |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_ADDR_INFO); |
| rc = qeth_l2_dev2br_an_set(card, true); |
| } |
| if (rc) { |
| netdev_err(card->dev, |
| "failed to enable bridge learning_sync: %d\n", |
| rc); |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); |
| qeth_l2_dev2br_fdb_flush(card); |
| priv->brport_features ^= BR_LEARNING_SYNC; |
| } |
| } else { |
| dev_warn(&card->gdev->dev, |
| "bridge learning_sync not supported\n"); |
| priv->brport_features ^= BR_LEARNING_SYNC; |
| } |
| } |
| } |
| |
| /* SETBRIDGEPORT support, async notifications */ |
| |
| enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; |
| |
| /** |
| * qeth_bridge_emit_host_event() - bridgeport address change notification |
| * @card: qeth_card structure pointer, for udev events. |
| * @evtype: "normal" register/unregister, or abort, or reset. For abort |
| * and reset token and addr_lnid are unused and may be NULL. |
| * @code: event bitmask: high order bit 0x80 value 1 means removal of an |
| * object, 0 - addition of an object. |
| * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. |
| * @token: "network token" structure identifying physical address of the port. |
| * @addr_lnid: pointer to structure with MAC address and VLAN ID. |
| * |
| * This function is called when registrations and deregistrations are |
| * reported by the hardware, and also when notifications are enabled - |
| * for all currently registered addresses. |
| */ |
| static void qeth_bridge_emit_host_event(struct qeth_card *card, |
| enum qeth_an_event_type evtype, |
| u8 code, |
| struct net_if_token *token, |
| struct mac_addr_lnid *addr_lnid) |
| { |
| char str[7][32]; |
| char *env[8]; |
| int i = 0; |
| |
| switch (evtype) { |
| case anev_reg_unreg: |
| snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", |
| (code & IPA_ADDR_CHANGE_CODE_REMOVAL) |
| ? "deregister" : "register"); |
| env[i] = str[i]; i++; |
| if (code & IPA_ADDR_CHANGE_CODE_VLANID) { |
| snprintf(str[i], sizeof(str[i]), "VLAN=%d", |
| addr_lnid->lnid); |
| env[i] = str[i]; i++; |
| } |
| if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { |
| snprintf(str[i], sizeof(str[i]), "MAC=%pM", |
| addr_lnid->mac); |
| env[i] = str[i]; i++; |
| } |
| snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", |
| token->cssid, token->ssid, token->devnum); |
| env[i] = str[i]; i++; |
| snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); |
| env[i] = str[i]; i++; |
| snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", |
| token->chpid); |
| env[i] = str[i]; i++; |
| snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); |
| env[i] = str[i]; i++; |
| break; |
| case anev_abort: |
| snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); |
| env[i] = str[i]; i++; |
| break; |
| case anev_reset: |
| snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); |
| env[i] = str[i]; i++; |
| break; |
| } |
| env[i] = NULL; |
| kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); |
| } |
| |
| struct qeth_bridge_state_data { |
| struct work_struct worker; |
| struct qeth_card *card; |
| u8 role; |
| u8 state; |
| }; |
| |
| static void qeth_bridge_state_change_worker(struct work_struct *work) |
| { |
| struct qeth_bridge_state_data *data = |
| container_of(work, struct qeth_bridge_state_data, worker); |
| char env_locrem[32]; |
| char env_role[32]; |
| char env_state[32]; |
| char *env[] = { |
| env_locrem, |
| env_role, |
| env_state, |
| NULL |
| }; |
| |
| snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); |
| snprintf(env_role, sizeof(env_role), "ROLE=%s", |
| (data->role == QETH_SBP_ROLE_NONE) ? "none" : |
| (data->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : |
| (data->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : |
| "<INVALID>"); |
| snprintf(env_state, sizeof(env_state), "STATE=%s", |
| (data->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : |
| (data->state == QETH_SBP_STATE_STANDBY) ? "standby" : |
| (data->state == QETH_SBP_STATE_ACTIVE) ? "active" : |
| "<INVALID>"); |
| kobject_uevent_env(&data->card->gdev->dev.kobj, |
| KOBJ_CHANGE, env); |
| kfree(data); |
| } |
| |
| static void qeth_bridge_state_change(struct qeth_card *card, |
| struct qeth_ipa_cmd *cmd) |
| { |
| struct qeth_sbp_port_data *qports = &cmd->data.sbp.data.port_data; |
| struct qeth_bridge_state_data *data; |
| |
| QETH_CARD_TEXT(card, 2, "brstchng"); |
| if (qports->num_entries == 0) { |
| QETH_CARD_TEXT(card, 2, "BPempty"); |
| return; |
| } |
| if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { |
| QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); |
| return; |
| } |
| |
| data = kzalloc(sizeof(*data), GFP_ATOMIC); |
| if (!data) { |
| QETH_CARD_TEXT(card, 2, "BPSalloc"); |
| return; |
| } |
| INIT_WORK(&data->worker, qeth_bridge_state_change_worker); |
| data->card = card; |
| /* Information for the local port: */ |
| data->role = qports->entry[0].role; |
| data->state = qports->entry[0].state; |
| |
| queue_work(card->event_wq, &data->worker); |
| } |
| |
| struct qeth_addr_change_data { |
| struct delayed_work dwork; |
| struct qeth_card *card; |
| struct qeth_ipacmd_addr_change ac_event; |
| }; |
| |
| static void qeth_l2_dev2br_worker(struct work_struct *work) |
| { |
| struct delayed_work *dwork = to_delayed_work(work); |
| struct qeth_addr_change_data *data; |
| struct qeth_card *card; |
| struct qeth_priv *priv; |
| unsigned int i; |
| int rc; |
| |
| data = container_of(dwork, struct qeth_addr_change_data, dwork); |
| card = data->card; |
| priv = netdev_priv(card->dev); |
| |
| QETH_CARD_TEXT(card, 4, "dev2brew"); |
| |
| if (READ_ONCE(card->info.pnso_mode) == QETH_PNSO_NONE) |
| goto free; |
| |
| if (data->ac_event.lost_event_mask) { |
| /* Potential re-config in progress, try again later: */ |
| if (!rtnl_trylock()) { |
| queue_delayed_work(card->event_wq, dwork, |
| msecs_to_jiffies(100)); |
| return; |
| } |
| |
| if (!netif_device_present(card->dev)) { |
| rtnl_unlock(); |
| goto free; |
| } |
| |
| QETH_DBF_MESSAGE(3, |
| "Address change notification overflow on device %x\n", |
| CARD_DEVID(card)); |
| /* Card fdb and bridge fdb are out of sync, card has stopped |
| * notifications (no need to drain_workqueue). Purge all |
| * 'extern_learn' entries from the parent bridge and restart |
| * the notifications. |
| */ |
| qeth_l2_dev2br_fdb_flush(card); |
| rc = qeth_l2_dev2br_an_set(card, true); |
| if (rc) { |
| /* TODO: if we want to retry after -EAGAIN, be |
| * aware there could be stale entries in the |
| * workqueue now, that need to be drained. |
| * For now we give up: |
| */ |
| netdev_err(card->dev, |
| "bridge learning_sync failed to recover: %d\n", |
| rc); |
| WRITE_ONCE(card->info.pnso_mode, |
| QETH_PNSO_NONE); |
| /* To remove fdb entries reported by an_set: */ |
| qeth_l2_dev2br_fdb_flush(card); |
| priv->brport_features ^= BR_LEARNING_SYNC; |
| } else { |
| QETH_DBF_MESSAGE(3, |
| "Address Notification resynced on device %x\n", |
| CARD_DEVID(card)); |
| } |
| |
| rtnl_unlock(); |
| } else { |
| for (i = 0; i < data->ac_event.num_entries; i++) { |
| struct qeth_ipacmd_addr_change_entry *entry = |
| &data->ac_event.entry[i]; |
| qeth_l2_dev2br_fdb_notify(card, |
| entry->change_code, |
| &entry->token, |
| &entry->addr_lnid); |
| } |
| } |
| |
| free: |
| kfree(data); |
| } |
| |
| static void qeth_addr_change_event_worker(struct work_struct *work) |
| { |
| struct delayed_work *dwork = to_delayed_work(work); |
| struct qeth_addr_change_data *data; |
| struct qeth_card *card; |
| int i; |
| |
| data = container_of(dwork, struct qeth_addr_change_data, dwork); |
| card = data->card; |
| |
| QETH_CARD_TEXT(data->card, 4, "adrchgew"); |
| |
| if (READ_ONCE(card->info.pnso_mode) == QETH_PNSO_NONE) |
| goto free; |
| |
| if (data->ac_event.lost_event_mask) { |
| /* Potential re-config in progress, try again later: */ |
| if (!mutex_trylock(&card->sbp_lock)) { |
| queue_delayed_work(card->event_wq, dwork, |
| msecs_to_jiffies(100)); |
| return; |
| } |
| |
| dev_info(&data->card->gdev->dev, |
| "Address change notification stopped on %s (%s)\n", |
| netdev_name(card->dev), |
| (data->ac_event.lost_event_mask == 0x01) |
| ? "Overflow" |
| : (data->ac_event.lost_event_mask == 0x02) |
| ? "Bridge port state change" |
| : "Unknown reason"); |
| |
| data->card->options.sbp.hostnotification = 0; |
| card->info.pnso_mode = QETH_PNSO_NONE; |
| mutex_unlock(&data->card->sbp_lock); |
| qeth_bridge_emit_host_event(data->card, anev_abort, |
| 0, NULL, NULL); |
| } else |
| for (i = 0; i < data->ac_event.num_entries; i++) { |
| struct qeth_ipacmd_addr_change_entry *entry = |
| &data->ac_event.entry[i]; |
| qeth_bridge_emit_host_event(data->card, |
| anev_reg_unreg, |
| entry->change_code, |
| &entry->token, |
| &entry->addr_lnid); |
| } |
| |
| free: |
| kfree(data); |
| } |
| |
| static void qeth_addr_change_event(struct qeth_card *card, |
| struct qeth_ipa_cmd *cmd) |
| { |
| struct qeth_ipacmd_addr_change *hostevs = |
| &cmd->data.addrchange; |
| struct qeth_addr_change_data *data; |
| int extrasize; |
| |
| if (card->info.pnso_mode == QETH_PNSO_NONE) |
| return; |
| |
| QETH_CARD_TEXT(card, 4, "adrchgev"); |
| if (cmd->hdr.return_code != 0x0000) { |
| if (cmd->hdr.return_code == 0x0010) { |
| if (hostevs->lost_event_mask == 0x00) |
| hostevs->lost_event_mask = 0xff; |
| } else { |
| QETH_CARD_TEXT_(card, 2, "ACHN%04x", |
| cmd->hdr.return_code); |
| return; |
| } |
| } |
| extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * |
| hostevs->num_entries; |
| data = kzalloc(sizeof(struct qeth_addr_change_data) + extrasize, |
| GFP_ATOMIC); |
| if (!data) { |
| QETH_CARD_TEXT(card, 2, "ACNalloc"); |
| return; |
| } |
| if (card->info.pnso_mode == QETH_PNSO_BRIDGEPORT) |
| INIT_DELAYED_WORK(&data->dwork, qeth_addr_change_event_worker); |
| else |
| INIT_DELAYED_WORK(&data->dwork, qeth_l2_dev2br_worker); |
| data->card = card; |
| data->ac_event = *hostevs; |
| memcpy(data->ac_event.entry, hostevs->entry, extrasize); |
| queue_delayed_work(card->event_wq, &data->dwork, 0); |
| } |
| |
| /* SETBRIDGEPORT support; sending commands */ |
| |
| struct _qeth_sbp_cbctl { |
| union { |
| u32 supported; |
| struct { |
| enum qeth_sbp_roles *role; |
| enum qeth_sbp_states *state; |
| } qports; |
| } data; |
| }; |
| |
| static int qeth_bridgeport_makerc(struct qeth_card *card, |
| struct qeth_ipa_cmd *cmd) |
| { |
| struct qeth_ipacmd_setbridgeport *sbp = &cmd->data.sbp; |
| enum qeth_ipa_sbp_cmd setcmd = sbp->hdr.command_code; |
| u16 ipa_rc = cmd->hdr.return_code; |
| u16 sbp_rc = sbp->hdr.return_code; |
| int rc; |
| |
| if (ipa_rc == IPA_RC_SUCCESS && sbp_rc == IPA_RC_SUCCESS) |
| return 0; |
| |
| if ((IS_IQD(card) && ipa_rc == IPA_RC_SUCCESS) || |
| (!IS_IQD(card) && ipa_rc == sbp_rc)) { |
| switch (sbp_rc) { |
| case IPA_RC_SUCCESS: |
| rc = 0; |
| break; |
| case IPA_RC_L2_UNSUPPORTED_CMD: |
| case IPA_RC_UNSUPPORTED_COMMAND: |
| rc = -EOPNOTSUPP; |
| break; |
| case IPA_RC_SBP_OSA_NOT_CONFIGURED: |
| case IPA_RC_SBP_IQD_NOT_CONFIGURED: |
| rc = -ENODEV; /* maybe not the best code here? */ |
| dev_err(&card->gdev->dev, |
| "The device is not configured as a Bridge Port\n"); |
| break; |
| case IPA_RC_SBP_OSA_OS_MISMATCH: |
| case IPA_RC_SBP_IQD_OS_MISMATCH: |
| rc = -EPERM; |
| dev_err(&card->gdev->dev, |
| "A Bridge Port is already configured by a different operating system\n"); |
| break; |
| case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY: |
| case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY: |
| switch (setcmd) { |
| case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: |
| rc = -EEXIST; |
| dev_err(&card->gdev->dev, |
| "The LAN already has a primary Bridge Port\n"); |
| break; |
| case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: |
| rc = -EBUSY; |
| dev_err(&card->gdev->dev, |
| "The device is already a primary Bridge Port\n"); |
| break; |
| default: |
| rc = -EIO; |
| } |
| break; |
| case IPA_RC_SBP_OSA_CURRENT_SECOND: |
| case IPA_RC_SBP_IQD_CURRENT_SECOND: |
| rc = -EBUSY; |
| dev_err(&card->gdev->dev, |
| "The device is already a secondary Bridge Port\n"); |
| break; |
| case IPA_RC_SBP_OSA_LIMIT_SECOND: |
| case IPA_RC_SBP_IQD_LIMIT_SECOND: |
| rc = -EEXIST; |
| dev_err(&card->gdev->dev, |
| "The LAN cannot have more secondary Bridge Ports\n"); |
| break; |
| case IPA_RC_SBP_OSA_CURRENT_PRIMARY: |
| case IPA_RC_SBP_IQD_CURRENT_PRIMARY: |
| rc = -EBUSY; |
| dev_err(&card->gdev->dev, |
| "The device is already a primary Bridge Port\n"); |
| break; |
| case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN: |
| case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN: |
| rc = -EACCES; |
| dev_err(&card->gdev->dev, |
| "The device is not authorized to be a Bridge Port\n"); |
| break; |
| default: |
| rc = -EIO; |
| } |
| } else { |
| switch (ipa_rc) { |
| case IPA_RC_NOTSUPP: |
| rc = -EOPNOTSUPP; |
| break; |
| case IPA_RC_UNSUPPORTED_COMMAND: |
| rc = -EOPNOTSUPP; |
| break; |
| default: |
| rc = -EIO; |
| } |
| } |
| |
| if (rc) { |
| QETH_CARD_TEXT_(card, 2, "SBPi%04x", ipa_rc); |
| QETH_CARD_TEXT_(card, 2, "SBPc%04x", sbp_rc); |
| } |
| return rc; |
| } |
| |
| static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card, |
| enum qeth_ipa_sbp_cmd sbp_cmd, |
| unsigned int data_length) |
| { |
| enum qeth_ipa_cmds ipa_cmd = IS_IQD(card) ? IPA_CMD_SETBRIDGEPORT_IQD : |
| IPA_CMD_SETBRIDGEPORT_OSA; |
| struct qeth_ipacmd_sbp_hdr *hdr; |
| struct qeth_cmd_buffer *iob; |
| |
| iob = qeth_ipa_alloc_cmd(card, ipa_cmd, QETH_PROT_NONE, |
| data_length + |
| offsetof(struct qeth_ipacmd_setbridgeport, |
| data)); |
| if (!iob) |
| return iob; |
| |
| hdr = &__ipa_cmd(iob)->data.sbp.hdr; |
| hdr->cmdlength = sizeof(*hdr) + data_length; |
| hdr->command_code = sbp_cmd; |
| hdr->used_total = 1; |
| hdr->seq_no = 1; |
| return iob; |
| } |
| |
| static int qeth_bridgeport_query_support_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
| struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; |
| int rc; |
| |
| QETH_CARD_TEXT(card, 2, "brqsupcb"); |
| rc = qeth_bridgeport_makerc(card, cmd); |
| if (rc) |
| return rc; |
| |
| cbctl->data.supported = |
| cmd->data.sbp.data.query_cmds_supp.supported_cmds; |
| return 0; |
| } |
| |
| /** |
| * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. |
| * @card: qeth_card structure pointer. |
| * |
| * Sets bitmask of supported setbridgeport subfunctions in the qeth_card |
| * strucutre: card->options.sbp.supported_funcs. |
| */ |
| static void qeth_bridgeport_query_support(struct qeth_card *card) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct _qeth_sbp_cbctl cbctl; |
| |
| QETH_CARD_TEXT(card, 2, "brqsuppo"); |
| iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED, |
| SBP_DATA_SIZEOF(query_cmds_supp)); |
| if (!iob) |
| return; |
| |
| if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, |
| &cbctl)) { |
| card->options.sbp.role = QETH_SBP_ROLE_NONE; |
| card->options.sbp.supported_funcs = 0; |
| return; |
| } |
| card->options.sbp.supported_funcs = cbctl.data.supported; |
| } |
| |
| static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
| struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; |
| struct qeth_sbp_port_data *qports; |
| int rc; |
| |
| QETH_CARD_TEXT(card, 2, "brqprtcb"); |
| rc = qeth_bridgeport_makerc(card, cmd); |
| if (rc) |
| return rc; |
| |
| qports = &cmd->data.sbp.data.port_data; |
| if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { |
| QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); |
| return -EINVAL; |
| } |
| /* first entry contains the state of the local port */ |
| if (qports->num_entries > 0) { |
| if (cbctl->data.qports.role) |
| *cbctl->data.qports.role = qports->entry[0].role; |
| if (cbctl->data.qports.state) |
| *cbctl->data.qports.state = qports->entry[0].state; |
| } |
| return 0; |
| } |
| |
| /** |
| * qeth_bridgeport_query_ports() - query local bridgeport status. |
| * @card: qeth_card structure pointer. |
| * @role: Role of the port: 0-none, 1-primary, 2-secondary. |
| * @state: State of the port: 0-inactive, 1-standby, 2-active. |
| * |
| * Returns negative errno-compatible error indication or 0 on success. |
| * |
| * 'role' and 'state' are not updated in case of hardware operation failure. |
| */ |
| int qeth_bridgeport_query_ports(struct qeth_card *card, |
| enum qeth_sbp_roles *role, enum qeth_sbp_states *state) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct _qeth_sbp_cbctl cbctl = { |
| .data = { |
| .qports = { |
| .role = role, |
| .state = state, |
| }, |
| }, |
| }; |
| |
| QETH_CARD_TEXT(card, 2, "brqports"); |
| if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) |
| return -EOPNOTSUPP; |
| iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0); |
| if (!iob) |
| return -ENOMEM; |
| |
| return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, |
| &cbctl); |
| } |
| |
| static int qeth_bridgeport_set_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; |
| |
| QETH_CARD_TEXT(card, 2, "brsetrcb"); |
| return qeth_bridgeport_makerc(card, cmd); |
| } |
| |
| /** |
| * qeth_bridgeport_setrole() - Assign primary role to the port. |
| * @card: qeth_card structure pointer. |
| * @role: Role to assign. |
| * |
| * Returns negative errno-compatible error indication or 0 on success. |
| */ |
| int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) |
| { |
| struct qeth_cmd_buffer *iob; |
| enum qeth_ipa_sbp_cmd setcmd; |
| unsigned int cmdlength = 0; |
| |
| QETH_CARD_TEXT(card, 2, "brsetrol"); |
| switch (role) { |
| case QETH_SBP_ROLE_NONE: |
| setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; |
| break; |
| case QETH_SBP_ROLE_PRIMARY: |
| setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; |
| cmdlength = SBP_DATA_SIZEOF(set_primary); |
| break; |
| case QETH_SBP_ROLE_SECONDARY: |
| setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; |
| break; |
| default: |
| return -EINVAL; |
| } |
| if (!(card->options.sbp.supported_funcs & setcmd)) |
| return -EOPNOTSUPP; |
| iob = qeth_sbp_build_cmd(card, setcmd, cmdlength); |
| if (!iob) |
| return -ENOMEM; |
| |
| return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, NULL); |
| } |
| |
| static void qeth_bridgeport_an_set_cb(void *priv, |
| struct chsc_pnso_naid_l2 *entry) |
| { |
| struct qeth_card *card = (struct qeth_card *)priv; |
| u8 code; |
| |
| code = IPA_ADDR_CHANGE_CODE_MACADDR; |
| if (entry->addr_lnid.lnid < VLAN_N_VID) |
| code |= IPA_ADDR_CHANGE_CODE_VLANID; |
| qeth_bridge_emit_host_event(card, anev_reg_unreg, code, |
| (struct net_if_token *)&entry->nit, |
| (struct mac_addr_lnid *)&entry->addr_lnid); |
| } |
| |
| /** |
| * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification |
| * @card: qeth_card structure pointer. |
| * @enable: 0 - disable, non-zero - enable notifications |
| * |
| * Returns negative errno-compatible error indication or 0 on success. |
| * |
| * On enable, emits a series of address notifications udev events for all |
| * currently registered hosts. |
| */ |
| int qeth_bridgeport_an_set(struct qeth_card *card, int enable) |
| { |
| int rc; |
| |
| if (!card->options.sbp.supported_funcs) |
| return -EOPNOTSUPP; |
| |
| if (enable) { |
| qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_BRIDGEPORT); |
| rc = qeth_l2_pnso(card, PNSO_OC_NET_BRIDGE_INFO, 1, |
| qeth_bridgeport_an_set_cb, card); |
| if (rc) |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); |
| } else { |
| rc = qeth_l2_pnso(card, PNSO_OC_NET_BRIDGE_INFO, 0, NULL, NULL); |
| qeth_l2_set_pnso_mode(card, QETH_PNSO_NONE); |
| } |
| return rc; |
| } |
| |
| /* VNIC Characteristics support */ |
| |
| /* handle VNICC IPA command return codes; convert to error codes */ |
| static int qeth_l2_vnicc_makerc(struct qeth_card *card, u16 ipa_rc) |
| { |
| int rc; |
| |
| switch (ipa_rc) { |
| case IPA_RC_SUCCESS: |
| return ipa_rc; |
| case IPA_RC_L2_UNSUPPORTED_CMD: |
| case IPA_RC_NOTSUPP: |
| rc = -EOPNOTSUPP; |
| break; |
| case IPA_RC_VNICC_OOSEQ: |
| rc = -EALREADY; |
| break; |
| case IPA_RC_VNICC_VNICBP: |
| rc = -EBUSY; |
| break; |
| case IPA_RC_L2_ADDR_TABLE_FULL: |
| rc = -ENOSPC; |
| break; |
| case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: |
| rc = -EACCES; |
| break; |
| default: |
| rc = -EIO; |
| } |
| |
| QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc); |
| return rc; |
| } |
| |
| /* generic VNICC request call back */ |
| static int qeth_l2_vnicc_request_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
| struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc; |
| u32 sub_cmd = cmd->data.vnicc.hdr.sub_command; |
| |
| QETH_CARD_TEXT(card, 2, "vniccrcb"); |
| if (cmd->hdr.return_code) |
| return qeth_l2_vnicc_makerc(card, cmd->hdr.return_code); |
| /* return results to caller */ |
| card->options.vnicc.sup_chars = rep->vnicc_cmds.supported; |
| card->options.vnicc.cur_chars = rep->vnicc_cmds.enabled; |
| |
| if (sub_cmd == IPA_VNICC_QUERY_CMDS) |
| *(u32 *)reply->param = rep->data.query_cmds.sup_cmds; |
| else if (sub_cmd == IPA_VNICC_GET_TIMEOUT) |
| *(u32 *)reply->param = rep->data.getset_timeout.timeout; |
| |
| return 0; |
| } |
| |
| static struct qeth_cmd_buffer *qeth_l2_vnicc_build_cmd(struct qeth_card *card, |
| u32 vnicc_cmd, |
| unsigned int data_length) |
| { |
| struct qeth_ipacmd_vnicc_hdr *hdr; |
| struct qeth_cmd_buffer *iob; |
| |
| iob = qeth_ipa_alloc_cmd(card, IPA_CMD_VNICC, QETH_PROT_NONE, |
| data_length + |
| offsetof(struct qeth_ipacmd_vnicc, data)); |
| if (!iob) |
| return NULL; |
| |
| hdr = &__ipa_cmd(iob)->data.vnicc.hdr; |
| hdr->data_length = sizeof(*hdr) + data_length; |
| hdr->sub_command = vnicc_cmd; |
| return iob; |
| } |
| |
| /* VNICC query VNIC characteristics request */ |
| static int qeth_l2_vnicc_query_chars(struct qeth_card *card) |
| { |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_CARD_TEXT(card, 2, "vniccqch"); |
| iob = qeth_l2_vnicc_build_cmd(card, IPA_VNICC_QUERY_CHARS, 0); |
| if (!iob) |
| return -ENOMEM; |
| |
| return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, NULL); |
| } |
| |
| /* VNICC query sub commands request */ |
| static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char, |
| u32 *sup_cmds) |
| { |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_CARD_TEXT(card, 2, "vniccqcm"); |
| iob = qeth_l2_vnicc_build_cmd(card, IPA_VNICC_QUERY_CMDS, |
| VNICC_DATA_SIZEOF(query_cmds)); |
| if (!iob) |
| return -ENOMEM; |
| |
| __ipa_cmd(iob)->data.vnicc.data.query_cmds.vnic_char = vnic_char; |
| |
| return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, sup_cmds); |
| } |
| |
| /* VNICC enable/disable characteristic request */ |
| static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char, |
| u32 cmd) |
| { |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_CARD_TEXT(card, 2, "vniccedc"); |
| iob = qeth_l2_vnicc_build_cmd(card, cmd, VNICC_DATA_SIZEOF(set_char)); |
| if (!iob) |
| return -ENOMEM; |
| |
| __ipa_cmd(iob)->data.vnicc.data.set_char.vnic_char = vnic_char; |
| |
| return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, NULL); |
| } |
| |
| /* VNICC get/set timeout for characteristic request */ |
| static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc, |
| u32 cmd, u32 *timeout) |
| { |
| struct qeth_vnicc_getset_timeout *getset_timeout; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_CARD_TEXT(card, 2, "vniccgst"); |
| iob = qeth_l2_vnicc_build_cmd(card, cmd, |
| VNICC_DATA_SIZEOF(getset_timeout)); |
| if (!iob) |
| return -ENOMEM; |
| |
| getset_timeout = &__ipa_cmd(iob)->data.vnicc.data.getset_timeout; |
| getset_timeout->vnic_char = vnicc; |
| |
| if (cmd == IPA_VNICC_SET_TIMEOUT) |
| getset_timeout->timeout = *timeout; |
| |
| 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) |
| { |
| int rc = 0; |
| u32 cmd; |
| |
| QETH_CARD_TEXT(card, 2, "vniccsch"); |
| |
| /* check if characteristic and enable/disable are supported */ |
| if (!(card->options.vnicc.sup_chars & vnicc) || |
| !(card->options.vnicc.set_char_sup & vnicc)) |
| return -EOPNOTSUPP; |
| |
| if (qeth_bridgeport_is_in_use(card)) |
| return -EBUSY; |
| |
| /* set enable/disable command and store wanted characteristic */ |
| if (state) { |
| cmd = IPA_VNICC_ENABLE; |
| card->options.vnicc.wanted_chars |= vnicc; |
| } else { |
| cmd = IPA_VNICC_DISABLE; |
| card->options.vnicc.wanted_chars &= ~vnicc; |
| } |
| |
| /* do we need to do anything? */ |
| if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars) |
| return rc; |
| |
| /* if card is not ready, simply stop here */ |
| if (!qeth_card_hw_is_reachable(card)) { |
| if (state) |
| card->options.vnicc.cur_chars |= vnicc; |
| else |
| card->options.vnicc.cur_chars &= ~vnicc; |
| return rc; |
| } |
| |
| rc = qeth_l2_vnicc_set_char(card, vnicc, cmd); |
| if (rc) |
| card->options.vnicc.wanted_chars = |
| card->options.vnicc.cur_chars; |
| else { |
| /* successful online VNICC change; handle special cases */ |
| if (state && vnicc == QETH_VNICC_RX_BCAST) |
| card->options.vnicc.rx_bcast_enabled = true; |
| if (!state && vnicc == QETH_VNICC_LEARNING) |
| qeth_l2_vnicc_recover_timeout(card, vnicc, |
| &card->options.vnicc.learning_timeout); |
| } |
| |
| return rc; |
| } |
| |
| /* get current VNICC flag state; called from sysfs show function */ |
| int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state) |
| { |
| int rc = 0; |
| |
| QETH_CARD_TEXT(card, 2, "vniccgch"); |
| |
| /* check if characteristic is supported */ |
| if (!(card->options.vnicc.sup_chars & vnicc)) |
| return -EOPNOTSUPP; |
| |
| if (qeth_bridgeport_is_in_use(card)) |
| return -EBUSY; |
| |
| /* if card is ready, query current VNICC state */ |
| if (qeth_card_hw_is_reachable(card)) |
| rc = qeth_l2_vnicc_query_chars(card); |
| |
| *state = (card->options.vnicc.cur_chars & vnicc) ? true : false; |
| return rc; |
| } |
| |
| /* set VNICC timeout; called from sysfs store function. Currently, only learning |
| * supports timeout |
| */ |
| int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout) |
| { |
| int rc = 0; |
| |
| QETH_CARD_TEXT(card, 2, "vniccsto"); |
| |
| /* check if characteristic and set_timeout are supported */ |
| if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || |
| !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) |
| return -EOPNOTSUPP; |
| |
| if (qeth_bridgeport_is_in_use(card)) |
| return -EBUSY; |
| |
| /* do we need to do anything? */ |
| if (card->options.vnicc.learning_timeout == timeout) |
| return rc; |
| |
| /* if card is not ready, simply store the value internally and return */ |
| if (!qeth_card_hw_is_reachable(card)) { |
| card->options.vnicc.learning_timeout = timeout; |
| return rc; |
| } |
| |
| /* send timeout value to card; if successful, store value internally */ |
| rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, |
| IPA_VNICC_SET_TIMEOUT, &timeout); |
| if (!rc) |
| card->options.vnicc.learning_timeout = timeout; |
| |
| return rc; |
| } |
| |
| /* get current VNICC timeout; called from sysfs show function. Currently, only |
| * learning supports timeout |
| */ |
| int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout) |
| { |
| int rc = 0; |
| |
| QETH_CARD_TEXT(card, 2, "vniccgto"); |
| |
| /* check if characteristic and get_timeout are supported */ |
| if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || |
| !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) |
| return -EOPNOTSUPP; |
| |
| if (qeth_bridgeport_is_in_use(card)) |
| return -EBUSY; |
| |
| /* if card is ready, get timeout. Otherwise, just return stored value */ |
| *timeout = card->options.vnicc.learning_timeout; |
| if (qeth_card_hw_is_reachable(card)) |
| rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, |
| IPA_VNICC_GET_TIMEOUT, |
| timeout); |
| |
| return rc; |
| } |
| |
| /* check if VNICC is currently enabled */ |
| static bool _qeth_l2_vnicc_is_in_use(struct qeth_card *card) |
| { |
| if (!card->options.vnicc.sup_chars) |
| return false; |
| /* default values are only OK if rx_bcast was not enabled by user |
| * or the card is offline. |
| */ |
| if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) { |
| if (!card->options.vnicc.rx_bcast_enabled || |
| !qeth_card_hw_is_reachable(card)) |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * qeth_bridgeport_allowed - are any qeth_bridgeport functions allowed? |
| * @card: qeth_card structure pointer |
| * |
| * qeth_bridgeport functionality is mutually exclusive with usage of the |
| * VNIC Characteristics and dev2br address notifications |
| */ |
| bool qeth_bridgeport_allowed(struct qeth_card *card) |
| { |
| struct qeth_priv *priv = netdev_priv(card->dev); |
| |
| return (!_qeth_l2_vnicc_is_in_use(card) && |
| !(priv->brport_features & BR_LEARNING_SYNC)); |
| } |
| |
| /* recover user characteristic setting */ |
| static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, |
| bool enable) |
| { |
| u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE; |
| |
| if (card->options.vnicc.sup_chars & vnicc && |
| card->options.vnicc.set_char_sup & vnicc && |
| !qeth_l2_vnicc_set_char(card, vnicc, cmd)) |
| return false; |
| card->options.vnicc.wanted_chars &= ~vnicc; |
| card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc; |
| return true; |
| } |
| |
| /* (re-)initialize VNICC */ |
| static void qeth_l2_vnicc_init(struct qeth_card *card) |
| { |
| u32 *timeout = &card->options.vnicc.learning_timeout; |
| bool enable, error = false; |
| unsigned int chars_len, i; |
| unsigned long chars_tmp; |
| u32 sup_cmds, vnicc; |
| |
| QETH_CARD_TEXT(card, 2, "vniccini"); |
| /* reset rx_bcast */ |
| card->options.vnicc.rx_bcast_enabled = 0; |
| /* initial query and storage of VNIC characteristics */ |
| if (qeth_l2_vnicc_query_chars(card)) { |
| if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT || |
| *timeout != QETH_VNICC_DEFAULT_TIMEOUT) |
| dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); |
| /* fail quietly if user didn't change the default config */ |
| card->options.vnicc.sup_chars = 0; |
| card->options.vnicc.cur_chars = 0; |
| card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; |
| return; |
| } |
| /* get supported commands for each supported characteristic */ |
| chars_tmp = card->options.vnicc.sup_chars; |
| chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE; |
| for_each_set_bit(i, &chars_tmp, chars_len) { |
| vnicc = BIT(i); |
| if (qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds)) { |
| sup_cmds = 0; |
| error = true; |
| } |
| if ((sup_cmds & IPA_VNICC_SET_TIMEOUT) && |
| (sup_cmds & IPA_VNICC_GET_TIMEOUT)) |
| card->options.vnicc.getset_timeout_sup |= vnicc; |
| else |
| card->options.vnicc.getset_timeout_sup &= ~vnicc; |
| if ((sup_cmds & IPA_VNICC_ENABLE) && |
| (sup_cmds & IPA_VNICC_DISABLE)) |
| card->options.vnicc.set_char_sup |= vnicc; |
| else |
| card->options.vnicc.set_char_sup &= ~vnicc; |
| } |
| /* enforce assumed default values and recover settings, if changed */ |
| error |= qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING, |
| timeout); |
| /* Change chars, if necessary */ |
| chars_tmp = card->options.vnicc.wanted_chars ^ |
| card->options.vnicc.cur_chars; |
| chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE; |
| for_each_set_bit(i, &chars_tmp, chars_len) { |
| vnicc = BIT(i); |
| enable = card->options.vnicc.wanted_chars & vnicc; |
| error |= qeth_l2_vnicc_recover_char(card, vnicc, enable); |
| } |
| if (error) |
| dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); |
| } |
| |
| /* configure default values of VNIC characteristics */ |
| static void qeth_l2_vnicc_set_defaults(struct qeth_card *card) |
| { |
| /* characteristics values */ |
| card->options.vnicc.sup_chars = QETH_VNICC_ALL; |
| card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT; |
| card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT; |
| /* supported commands */ |
| card->options.vnicc.set_char_sup = QETH_VNICC_ALL; |
| card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING; |
| /* settings wanted by users */ |
| 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; |
| |
| qeth_l2_vnicc_set_defaults(card); |
| mutex_init(&card->sbp_lock); |
| |
| if (gdev->dev.type) { |
| rc = device_add_groups(&gdev->dev, qeth_l2_attr_groups); |
| if (rc) |
| return rc; |
| } else { |
| gdev->dev.type = &qeth_l2_devtype; |
| } |
| |
| 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); |
| struct qeth_priv *priv; |
| |
| if (gdev->dev.type != &qeth_l2_devtype) |
| device_remove_groups(&gdev->dev, qeth_l2_attr_groups); |
| |
| 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, card->discipline, false); |
| |
| if (card->dev->reg_state == NETREG_REGISTERED) { |
| priv = netdev_priv(card->dev); |
| if (priv->brport_features & BR_LEARNING_SYNC) { |
| rtnl_lock(); |
| qeth_l2_br2dev_put(); |
| rtnl_unlock(); |
| } |
| 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; |
| |
| 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(); |
| rc = qeth_set_real_num_tx_queues(card, |
| qeth_tx_actual_queues(card)); |
| if (rc) { |
| rtnl_unlock(); |
| goto err_set_queues; |
| } |
| |
| 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 (netif_running(dev)) { |
| local_bh_disable(); |
| napi_schedule(&card->napi); |
| /* kick-start the NAPI softirq: */ |
| local_bh_enable(); |
| qeth_l2_set_rx_mode(dev); |
| } |
| rtnl_unlock(); |
| } |
| return 0; |
| |
| err_set_queues: |
| 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) |
| qeth_l2_dev2br_fdb_flush(card); |
| } |
| |
| /* 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; |
| } |
| } |
| |
| const struct qeth_discipline qeth_l2_discipline = { |
| .setup = qeth_l2_probe_device, |
| .remove = qeth_l2_remove_device, |
| .set_online = qeth_l2_set_online, |
| .set_offline = qeth_l2_set_offline, |
| .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"); |
| refcount_set(&qeth_l2_switchdev_notify_refcnt, 0); |
| 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>"); |
| MODULE_DESCRIPTION("qeth layer 2 discipline"); |
| MODULE_LICENSE("GPL"); |