14a71df50SFrank Blaschka /* 24a71df50SFrank Blaschka * drivers/s390/net/qeth_l2_main.c 34a71df50SFrank Blaschka * 4bbcfcdc8SFrank Blaschka * Copyright IBM Corp. 2007, 2009 54a71df50SFrank Blaschka * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 64a71df50SFrank Blaschka * Frank Pavlic <fpavlic@de.ibm.com>, 74a71df50SFrank Blaschka * Thomas Spatzier <tspat@de.ibm.com>, 84a71df50SFrank Blaschka * Frank Blaschka <frank.blaschka@de.ibm.com> 94a71df50SFrank Blaschka */ 104a71df50SFrank Blaschka 1174eacdb9SFrank Blaschka #define KMSG_COMPONENT "qeth" 1274eacdb9SFrank Blaschka #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 1374eacdb9SFrank Blaschka 144a71df50SFrank Blaschka #include <linux/module.h> 154a71df50SFrank Blaschka #include <linux/moduleparam.h> 164a71df50SFrank Blaschka #include <linux/string.h> 174a71df50SFrank Blaschka #include <linux/errno.h> 184a71df50SFrank Blaschka #include <linux/kernel.h> 194a71df50SFrank Blaschka #include <linux/etherdevice.h> 204a71df50SFrank Blaschka #include <linux/mii.h> 214a71df50SFrank Blaschka #include <linux/ip.h> 22ccffad25SJiri Pirko #include <linux/list.h> 234a71df50SFrank Blaschka 244a71df50SFrank Blaschka #include "qeth_core.h" 254a71df50SFrank Blaschka 264a71df50SFrank Blaschka static int qeth_l2_set_offline(struct ccwgroup_device *); 274a71df50SFrank Blaschka static int qeth_l2_stop(struct net_device *); 284a71df50SFrank Blaschka static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); 294a71df50SFrank Blaschka static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, 304a71df50SFrank Blaschka enum qeth_ipa_cmds, 314a71df50SFrank Blaschka int (*reply_cb) (struct qeth_card *, 324a71df50SFrank Blaschka struct qeth_reply*, 334a71df50SFrank Blaschka unsigned long)); 344a71df50SFrank Blaschka static void qeth_l2_set_multicast_list(struct net_device *); 354a71df50SFrank Blaschka static int qeth_l2_recover(void *); 364a71df50SFrank Blaschka 374a71df50SFrank Blaschka static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 384a71df50SFrank Blaschka { 39509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 404a71df50SFrank Blaschka struct mii_ioctl_data *mii_data; 414a71df50SFrank Blaschka int rc = 0; 424a71df50SFrank Blaschka 434a71df50SFrank Blaschka if (!card) 444a71df50SFrank Blaschka return -ENODEV; 454a71df50SFrank Blaschka 464a71df50SFrank Blaschka if ((card->state != CARD_STATE_UP) && 474a71df50SFrank Blaschka (card->state != CARD_STATE_SOFTSETUP)) 484a71df50SFrank Blaschka return -ENODEV; 494a71df50SFrank Blaschka 504a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_OSN) 514a71df50SFrank Blaschka return -EPERM; 524a71df50SFrank Blaschka 534a71df50SFrank Blaschka switch (cmd) { 544a71df50SFrank Blaschka case SIOC_QETH_ADP_SET_SNMP_CONTROL: 554a71df50SFrank Blaschka rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 564a71df50SFrank Blaschka break; 574a71df50SFrank Blaschka case SIOC_QETH_GET_CARD_TYPE: 584a71df50SFrank Blaschka if ((card->info.type == QETH_CARD_TYPE_OSAE) && 594a71df50SFrank Blaschka !card->info.guestlan) 604a71df50SFrank Blaschka return 1; 614a71df50SFrank Blaschka return 0; 624a71df50SFrank Blaschka break; 634a71df50SFrank Blaschka case SIOCGMIIPHY: 644a71df50SFrank Blaschka mii_data = if_mii(rq); 654a71df50SFrank Blaschka mii_data->phy_id = 0; 664a71df50SFrank Blaschka break; 674a71df50SFrank Blaschka case SIOCGMIIREG: 684a71df50SFrank Blaschka mii_data = if_mii(rq); 694a71df50SFrank Blaschka if (mii_data->phy_id != 0) 704a71df50SFrank Blaschka rc = -EINVAL; 714a71df50SFrank Blaschka else 724a71df50SFrank Blaschka mii_data->val_out = qeth_mdio_read(dev, 734a71df50SFrank Blaschka mii_data->phy_id, mii_data->reg_num); 744a71df50SFrank Blaschka break; 754a71df50SFrank Blaschka default: 764a71df50SFrank Blaschka rc = -EOPNOTSUPP; 774a71df50SFrank Blaschka } 784a71df50SFrank Blaschka if (rc) 79d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); 804a71df50SFrank Blaschka return rc; 814a71df50SFrank Blaschka } 824a71df50SFrank Blaschka 834a71df50SFrank Blaschka static int qeth_l2_verify_dev(struct net_device *dev) 844a71df50SFrank Blaschka { 854a71df50SFrank Blaschka struct qeth_card *card; 864a71df50SFrank Blaschka unsigned long flags; 874a71df50SFrank Blaschka int rc = 0; 884a71df50SFrank Blaschka 894a71df50SFrank Blaschka read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 904a71df50SFrank Blaschka list_for_each_entry(card, &qeth_core_card_list.list, list) { 914a71df50SFrank Blaschka if (card->dev == dev) { 924a71df50SFrank Blaschka rc = QETH_REAL_CARD; 934a71df50SFrank Blaschka break; 944a71df50SFrank Blaschka } 954a71df50SFrank Blaschka } 964a71df50SFrank Blaschka read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 974a71df50SFrank Blaschka 984a71df50SFrank Blaschka return rc; 994a71df50SFrank Blaschka } 1004a71df50SFrank Blaschka 1014a71df50SFrank Blaschka static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) 1024a71df50SFrank Blaschka { 1034a71df50SFrank Blaschka struct qeth_card *card; 1044a71df50SFrank Blaschka struct net_device *ndev; 105f06f6f32SCornelia Huck __u16 temp_dev_no; 1064a71df50SFrank Blaschka unsigned long flags; 107f06f6f32SCornelia Huck struct ccw_dev_id read_devid; 1084a71df50SFrank Blaschka 1094a71df50SFrank Blaschka ndev = NULL; 1104a71df50SFrank Blaschka memcpy(&temp_dev_no, read_dev_no, 2); 1114a71df50SFrank Blaschka read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 1124a71df50SFrank Blaschka list_for_each_entry(card, &qeth_core_card_list.list, list) { 113f06f6f32SCornelia Huck ccw_device_get_id(CARD_RDEV(card), &read_devid); 114f06f6f32SCornelia Huck if (read_devid.devno == temp_dev_no) { 1154a71df50SFrank Blaschka ndev = card->dev; 1164a71df50SFrank Blaschka break; 1174a71df50SFrank Blaschka } 1184a71df50SFrank Blaschka } 1194a71df50SFrank Blaschka read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 1204a71df50SFrank Blaschka return ndev; 1214a71df50SFrank Blaschka } 1224a71df50SFrank Blaschka 1234a71df50SFrank Blaschka static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, 1244a71df50SFrank Blaschka struct qeth_reply *reply, 1254a71df50SFrank Blaschka unsigned long data) 1264a71df50SFrank Blaschka { 1274a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 1284a71df50SFrank Blaschka __u8 *mac; 1294a71df50SFrank Blaschka 130d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Sgmacb"); 1314a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 1324a71df50SFrank Blaschka mac = &cmd->data.setdelmac.mac[0]; 1334a71df50SFrank Blaschka /* MAC already registered, needed in couple/uncouple case */ 1340666eb06SUrsula Braun if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { 1357c510e4bSJohannes Berg QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", 1367c510e4bSJohannes Berg mac, QETH_CARD_IFNAME(card)); 1374a71df50SFrank Blaschka cmd->hdr.return_code = 0; 1384a71df50SFrank Blaschka } 1394a71df50SFrank Blaschka if (cmd->hdr.return_code) 1407c510e4bSJohannes Berg QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", 1417c510e4bSJohannes Berg mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); 1424a71df50SFrank Blaschka return 0; 1434a71df50SFrank Blaschka } 1444a71df50SFrank Blaschka 1454a71df50SFrank Blaschka static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) 1464a71df50SFrank Blaschka { 147d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); 1484a71df50SFrank Blaschka return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, 1494a71df50SFrank Blaschka qeth_l2_send_setgroupmac_cb); 1504a71df50SFrank Blaschka } 1514a71df50SFrank Blaschka 1524a71df50SFrank Blaschka static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, 1534a71df50SFrank Blaschka struct qeth_reply *reply, 1544a71df50SFrank Blaschka unsigned long data) 1554a71df50SFrank Blaschka { 1564a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 1574a71df50SFrank Blaschka __u8 *mac; 1584a71df50SFrank Blaschka 159d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); 1604a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 1614a71df50SFrank Blaschka mac = &cmd->data.setdelmac.mac[0]; 1624a71df50SFrank Blaschka if (cmd->hdr.return_code) 1637c510e4bSJohannes Berg QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", 1647c510e4bSJohannes Berg mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); 1654a71df50SFrank Blaschka return 0; 1664a71df50SFrank Blaschka } 1674a71df50SFrank Blaschka 1684a71df50SFrank Blaschka static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) 1694a71df50SFrank Blaschka { 170d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); 1714a71df50SFrank Blaschka return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, 1724a71df50SFrank Blaschka qeth_l2_send_delgroupmac_cb); 1734a71df50SFrank Blaschka } 1744a71df50SFrank Blaschka 1757db2266aSFrank Blaschka static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) 1764a71df50SFrank Blaschka { 1774a71df50SFrank Blaschka struct qeth_mc_mac *mc; 1787db2266aSFrank Blaschka int rc; 1794a71df50SFrank Blaschka 1804a71df50SFrank Blaschka mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); 1814a71df50SFrank Blaschka 18214cc21b6SFrank Blaschka if (!mc) 1834a71df50SFrank Blaschka return; 1844a71df50SFrank Blaschka 1854a71df50SFrank Blaschka memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); 1864a71df50SFrank Blaschka mc->mc_addrlen = OSA_ADDR_LEN; 1877db2266aSFrank Blaschka mc->is_vmac = vmac; 1884a71df50SFrank Blaschka 1897db2266aSFrank Blaschka if (vmac) { 1907db2266aSFrank Blaschka rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, 1917db2266aSFrank Blaschka NULL); 1927db2266aSFrank Blaschka } else { 1937db2266aSFrank Blaschka rc = qeth_l2_send_setgroupmac(card, mac); 1947db2266aSFrank Blaschka } 1957db2266aSFrank Blaschka 1967db2266aSFrank Blaschka if (!rc) 1974a71df50SFrank Blaschka list_add_tail(&mc->list, &card->mc_list); 1984a71df50SFrank Blaschka else 1994a71df50SFrank Blaschka kfree(mc); 2004a71df50SFrank Blaschka } 2014a71df50SFrank Blaschka 2024a71df50SFrank Blaschka static void qeth_l2_del_all_mc(struct qeth_card *card) 2034a71df50SFrank Blaschka { 2044a71df50SFrank Blaschka struct qeth_mc_mac *mc, *tmp; 2054a71df50SFrank Blaschka 2064a71df50SFrank Blaschka spin_lock_bh(&card->mclock); 2074a71df50SFrank Blaschka list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { 2087db2266aSFrank Blaschka if (mc->is_vmac) 2097db2266aSFrank Blaschka qeth_l2_send_setdelmac(card, mc->mc_addr, 2107db2266aSFrank Blaschka IPA_CMD_DELVMAC, NULL); 2117db2266aSFrank Blaschka else 2124a71df50SFrank Blaschka qeth_l2_send_delgroupmac(card, mc->mc_addr); 2134a71df50SFrank Blaschka list_del(&mc->list); 2144a71df50SFrank Blaschka kfree(mc); 2154a71df50SFrank Blaschka } 2164a71df50SFrank Blaschka spin_unlock_bh(&card->mclock); 2174a71df50SFrank Blaschka } 2184a71df50SFrank Blaschka 219ce73e10eSKlaus-Dieter Wacker static inline int qeth_l2_get_cast_type(struct qeth_card *card, 220ce73e10eSKlaus-Dieter Wacker struct sk_buff *skb) 2214a71df50SFrank Blaschka { 222ce73e10eSKlaus-Dieter Wacker if (card->info.type == QETH_CARD_TYPE_OSN) 223ce73e10eSKlaus-Dieter Wacker return RTN_UNSPEC; 224ce73e10eSKlaus-Dieter Wacker if (is_broadcast_ether_addr(skb->data)) 225ce73e10eSKlaus-Dieter Wacker return RTN_BROADCAST; 226ce73e10eSKlaus-Dieter Wacker if (is_multicast_ether_addr(skb->data)) 227ce73e10eSKlaus-Dieter Wacker return RTN_MULTICAST; 228ce73e10eSKlaus-Dieter Wacker return RTN_UNSPEC; 2294a71df50SFrank Blaschka } 2304a71df50SFrank Blaschka 2314a71df50SFrank Blaschka static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, 2324a71df50SFrank Blaschka struct sk_buff *skb, int ipv, int cast_type) 2334a71df50SFrank Blaschka { 234683d718aSFrank Blaschka struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); 2354a71df50SFrank Blaschka 2364a71df50SFrank Blaschka memset(hdr, 0, sizeof(struct qeth_hdr)); 2374a71df50SFrank Blaschka hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; 2384a71df50SFrank Blaschka 2394a71df50SFrank Blaschka /* set byte byte 3 to casting flags */ 2404a71df50SFrank Blaschka if (cast_type == RTN_MULTICAST) 2414a71df50SFrank Blaschka hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; 2424a71df50SFrank Blaschka else if (cast_type == RTN_BROADCAST) 2434a71df50SFrank Blaschka hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; 2444a71df50SFrank Blaschka else 245ce73e10eSKlaus-Dieter Wacker hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; 2464a71df50SFrank Blaschka 2474a71df50SFrank Blaschka hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; 2484a71df50SFrank Blaschka /* VSWITCH relies on the VLAN 2494a71df50SFrank Blaschka * information to be present in 2504a71df50SFrank Blaschka * the QDIO header */ 2514a71df50SFrank Blaschka if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { 2524a71df50SFrank Blaschka hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; 2534a71df50SFrank Blaschka hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); 2544a71df50SFrank Blaschka } 2554a71df50SFrank Blaschka } 2564a71df50SFrank Blaschka 2574a71df50SFrank Blaschka static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, 2584a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 2594a71df50SFrank Blaschka { 2604a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 2614a71df50SFrank Blaschka 262d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); 2634a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 2644a71df50SFrank Blaschka if (cmd->hdr.return_code) { 26514cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " 2664a71df50SFrank Blaschka "Continuing\n", cmd->data.setdelvlan.vlan_id, 2674a71df50SFrank Blaschka QETH_CARD_IFNAME(card), cmd->hdr.return_code); 268d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); 269d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); 270d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); 2714a71df50SFrank Blaschka } 2724a71df50SFrank Blaschka return 0; 2734a71df50SFrank Blaschka } 2744a71df50SFrank Blaschka 2754a71df50SFrank Blaschka static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, 2764a71df50SFrank Blaschka enum qeth_ipa_cmds ipacmd) 2774a71df50SFrank Blaschka { 2784a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 2794a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 2804a71df50SFrank Blaschka 281d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); 2824a71df50SFrank Blaschka iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 2834a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 2844a71df50SFrank Blaschka cmd->data.setdelvlan.vlan_id = i; 2854a71df50SFrank Blaschka return qeth_send_ipa_cmd(card, iob, 2864a71df50SFrank Blaschka qeth_l2_send_setdelvlan_cb, NULL); 2874a71df50SFrank Blaschka } 2884a71df50SFrank Blaschka 2894a71df50SFrank Blaschka static void qeth_l2_process_vlans(struct qeth_card *card, int clear) 2904a71df50SFrank Blaschka { 2914a71df50SFrank Blaschka struct qeth_vlan_vid *id; 292d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); 2934a71df50SFrank Blaschka spin_lock_bh(&card->vlanlock); 2944a71df50SFrank Blaschka list_for_each_entry(id, &card->vid_list, list) { 2954a71df50SFrank Blaschka if (clear) 2964a71df50SFrank Blaschka qeth_l2_send_setdelvlan(card, id->vid, 2974a71df50SFrank Blaschka IPA_CMD_DELVLAN); 2984a71df50SFrank Blaschka else 2994a71df50SFrank Blaschka qeth_l2_send_setdelvlan(card, id->vid, 3004a71df50SFrank Blaschka IPA_CMD_SETVLAN); 3014a71df50SFrank Blaschka } 3024a71df50SFrank Blaschka spin_unlock_bh(&card->vlanlock); 3034a71df50SFrank Blaschka } 3044a71df50SFrank Blaschka 3054a71df50SFrank Blaschka static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) 3064a71df50SFrank Blaschka { 307509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 3084a71df50SFrank Blaschka struct qeth_vlan_vid *id; 3094a71df50SFrank Blaschka 310d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); 3118e98ac48SUrsula Braun if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 3128e98ac48SUrsula Braun QETH_DBF_TEXT(TRACE, 3, "aidREC"); 3138e98ac48SUrsula Braun return; 3148e98ac48SUrsula Braun } 3154a71df50SFrank Blaschka id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); 3164a71df50SFrank Blaschka if (id) { 3174a71df50SFrank Blaschka id->vid = vid; 3184a71df50SFrank Blaschka qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); 3194a71df50SFrank Blaschka spin_lock_bh(&card->vlanlock); 3204a71df50SFrank Blaschka list_add_tail(&id->list, &card->vid_list); 3214a71df50SFrank Blaschka spin_unlock_bh(&card->vlanlock); 3224a71df50SFrank Blaschka } 3234a71df50SFrank Blaschka } 3244a71df50SFrank Blaschka 3254a71df50SFrank Blaschka static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) 3264a71df50SFrank Blaschka { 3274a71df50SFrank Blaschka struct qeth_vlan_vid *id, *tmpid = NULL; 328509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 3294a71df50SFrank Blaschka 330d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); 3318e98ac48SUrsula Braun if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 3328e98ac48SUrsula Braun QETH_DBF_TEXT(TRACE, 3, "kidREC"); 3338e98ac48SUrsula Braun return; 3348e98ac48SUrsula Braun } 3354a71df50SFrank Blaschka spin_lock_bh(&card->vlanlock); 3364a71df50SFrank Blaschka list_for_each_entry(id, &card->vid_list, list) { 3374a71df50SFrank Blaschka if (id->vid == vid) { 3384a71df50SFrank Blaschka list_del(&id->list); 3394a71df50SFrank Blaschka tmpid = id; 3404a71df50SFrank Blaschka break; 3414a71df50SFrank Blaschka } 3424a71df50SFrank Blaschka } 3434a71df50SFrank Blaschka spin_unlock_bh(&card->vlanlock); 3444a71df50SFrank Blaschka if (tmpid) { 3454a71df50SFrank Blaschka qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); 3464a71df50SFrank Blaschka kfree(tmpid); 3474a71df50SFrank Blaschka } 3484a71df50SFrank Blaschka qeth_l2_set_multicast_list(card->dev); 3494a71df50SFrank Blaschka } 3504a71df50SFrank Blaschka 3514a71df50SFrank Blaschka static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) 3524a71df50SFrank Blaschka { 3534a71df50SFrank Blaschka int rc = 0; 3544a71df50SFrank Blaschka 355d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "stopcard"); 356d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 3574a71df50SFrank Blaschka 3584a71df50SFrank Blaschka qeth_set_allowed_threads(card, 0, 1); 3594a71df50SFrank Blaschka if (card->read.state == CH_STATE_UP && 3604a71df50SFrank Blaschka card->write.state == CH_STATE_UP && 3614a71df50SFrank Blaschka (card->state == CARD_STATE_UP)) { 3624a71df50SFrank Blaschka if (recovery_mode && 3634a71df50SFrank Blaschka card->info.type != QETH_CARD_TYPE_OSN) { 3644a71df50SFrank Blaschka qeth_l2_stop(card->dev); 3654a71df50SFrank Blaschka } else { 3664a71df50SFrank Blaschka rtnl_lock(); 3674a71df50SFrank Blaschka dev_close(card->dev); 3684a71df50SFrank Blaschka rtnl_unlock(); 3694a71df50SFrank Blaschka } 370932e1583SKlaus-Dieter Wacker if (!card->use_hard_stop || 371932e1583SKlaus-Dieter Wacker recovery_mode) { 3724a71df50SFrank Blaschka __u8 *mac = &card->dev->dev_addr[0]; 3734a71df50SFrank Blaschka rc = qeth_l2_send_delmac(card, mac); 374d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); 3754a71df50SFrank Blaschka } 3764a71df50SFrank Blaschka card->state = CARD_STATE_SOFTSETUP; 3774a71df50SFrank Blaschka } 3784a71df50SFrank Blaschka if (card->state == CARD_STATE_SOFTSETUP) { 3794a71df50SFrank Blaschka qeth_l2_process_vlans(card, 1); 380932e1583SKlaus-Dieter Wacker if (!card->use_hard_stop || 381932e1583SKlaus-Dieter Wacker recovery_mode) 3824a71df50SFrank Blaschka qeth_l2_del_all_mc(card); 3834a71df50SFrank Blaschka qeth_clear_ipacmd_list(card); 3844a71df50SFrank Blaschka card->state = CARD_STATE_HARDSETUP; 3854a71df50SFrank Blaschka } 3864a71df50SFrank Blaschka if (card->state == CARD_STATE_HARDSETUP) { 3874a71df50SFrank Blaschka qeth_qdio_clear_card(card, 0); 3884a71df50SFrank Blaschka qeth_clear_qdio_buffers(card); 3894a71df50SFrank Blaschka qeth_clear_working_pool_list(card); 3904a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 3914a71df50SFrank Blaschka } 3924a71df50SFrank Blaschka if (card->state == CARD_STATE_DOWN) { 3934a71df50SFrank Blaschka qeth_clear_cmd_buffers(&card->read); 3944a71df50SFrank Blaschka qeth_clear_cmd_buffers(&card->write); 3954a71df50SFrank Blaschka } 3964a71df50SFrank Blaschka card->use_hard_stop = 0; 3974a71df50SFrank Blaschka return rc; 3984a71df50SFrank Blaschka } 3994a71df50SFrank Blaschka 4004a71df50SFrank Blaschka static void qeth_l2_process_inbound_buffer(struct qeth_card *card, 4014a71df50SFrank Blaschka struct qeth_qdio_buffer *buf, int index) 4024a71df50SFrank Blaschka { 4034a71df50SFrank Blaschka struct qdio_buffer_element *element; 4044a71df50SFrank Blaschka struct sk_buff *skb; 4054a71df50SFrank Blaschka struct qeth_hdr *hdr; 4064a71df50SFrank Blaschka int offset; 4074a71df50SFrank Blaschka unsigned int len; 4084a71df50SFrank Blaschka 4094a71df50SFrank Blaschka /* get first element of current buffer */ 4104a71df50SFrank Blaschka element = (struct qdio_buffer_element *)&buf->buffer->element[0]; 4114a71df50SFrank Blaschka offset = 0; 4124a71df50SFrank Blaschka if (card->options.performance_stats) 4134a71df50SFrank Blaschka card->perf_stats.bufs_rec++; 4144a71df50SFrank Blaschka while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, 4154a71df50SFrank Blaschka &offset, &hdr))) { 4164a71df50SFrank Blaschka skb->dev = card->dev; 4174a71df50SFrank Blaschka /* is device UP ? */ 4184a71df50SFrank Blaschka if (!(card->dev->flags & IFF_UP)) { 4194a71df50SFrank Blaschka dev_kfree_skb_any(skb); 4204a71df50SFrank Blaschka continue; 4214a71df50SFrank Blaschka } 4224a71df50SFrank Blaschka 4234a71df50SFrank Blaschka switch (hdr->hdr.l2.id) { 4244a71df50SFrank Blaschka case QETH_HEADER_TYPE_LAYER2: 4254a71df50SFrank Blaschka skb->pkt_type = PACKET_HOST; 4264a71df50SFrank Blaschka skb->protocol = eth_type_trans(skb, skb->dev); 4274a71df50SFrank Blaschka if (card->options.checksum_type == NO_CHECKSUMMING) 4284a71df50SFrank Blaschka skb->ip_summed = CHECKSUM_UNNECESSARY; 4294a71df50SFrank Blaschka else 4304a71df50SFrank Blaschka skb->ip_summed = CHECKSUM_NONE; 43112883725SUrsula Braun if (skb->protocol == htons(ETH_P_802_2)) 4324a71df50SFrank Blaschka *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; 4334a71df50SFrank Blaschka len = skb->len; 4344a71df50SFrank Blaschka netif_rx(skb); 4354a71df50SFrank Blaschka break; 4364a71df50SFrank Blaschka case QETH_HEADER_TYPE_OSN: 4372d488c2fSUrsula Braun if (card->info.type == QETH_CARD_TYPE_OSN) { 4384a71df50SFrank Blaschka skb_push(skb, sizeof(struct qeth_hdr)); 4394a71df50SFrank Blaschka skb_copy_to_linear_data(skb, hdr, 4404a71df50SFrank Blaschka sizeof(struct qeth_hdr)); 4414a71df50SFrank Blaschka len = skb->len; 4424a71df50SFrank Blaschka card->osn_info.data_cb(skb); 4434a71df50SFrank Blaschka break; 4442d488c2fSUrsula Braun } 4452d488c2fSUrsula Braun /* else unknown */ 4464a71df50SFrank Blaschka default: 4474a71df50SFrank Blaschka dev_kfree_skb_any(skb); 448d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 3, "inbunkno"); 449d11ba0c4SPeter Tiedemann QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); 4504a71df50SFrank Blaschka continue; 4514a71df50SFrank Blaschka } 4524a71df50SFrank Blaschka card->stats.rx_packets++; 4534a71df50SFrank Blaschka card->stats.rx_bytes += len; 4544a71df50SFrank Blaschka } 4554a71df50SFrank Blaschka } 4564a71df50SFrank Blaschka 4574a71df50SFrank Blaschka static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, 4584a71df50SFrank Blaschka enum qeth_ipa_cmds ipacmd, 4594a71df50SFrank Blaschka int (*reply_cb) (struct qeth_card *, 4604a71df50SFrank Blaschka struct qeth_reply*, 4614a71df50SFrank Blaschka unsigned long)) 4624a71df50SFrank Blaschka { 4634a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 4644a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 4654a71df50SFrank Blaschka 466d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); 4674a71df50SFrank Blaschka iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 4684a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 4694a71df50SFrank Blaschka cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; 4704a71df50SFrank Blaschka memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); 4714a71df50SFrank Blaschka return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); 4724a71df50SFrank Blaschka } 4734a71df50SFrank Blaschka 4744a71df50SFrank Blaschka static int qeth_l2_send_setmac_cb(struct qeth_card *card, 4754a71df50SFrank Blaschka struct qeth_reply *reply, 4764a71df50SFrank Blaschka unsigned long data) 4774a71df50SFrank Blaschka { 4784a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 4794a71df50SFrank Blaschka 480d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); 4814a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 4824a71df50SFrank Blaschka if (cmd->hdr.return_code) { 483d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); 4844a71df50SFrank Blaschka card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 4850666eb06SUrsula Braun switch (cmd->hdr.return_code) { 4860666eb06SUrsula Braun case IPA_RC_L2_DUP_MAC: 4870666eb06SUrsula Braun case IPA_RC_L2_DUP_LAYER3_MAC: 4880666eb06SUrsula Braun dev_warn(&card->gdev->dev, 489d998ab0bSH Hartley Sweeten "MAC address %pM already exists\n", 490d998ab0bSH Hartley Sweeten card->dev->dev_addr); 4910666eb06SUrsula Braun break; 4920666eb06SUrsula Braun case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: 4930666eb06SUrsula Braun case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 4940666eb06SUrsula Braun dev_warn(&card->gdev->dev, 495d998ab0bSH Hartley Sweeten "MAC address %pM is not authorized\n", 496d998ab0bSH Hartley Sweeten card->dev->dev_addr); 4970666eb06SUrsula Braun break; 4980666eb06SUrsula Braun default: 4990666eb06SUrsula Braun break; 5000666eb06SUrsula Braun } 5014a71df50SFrank Blaschka cmd->hdr.return_code = -EIO; 5024a71df50SFrank Blaschka } else { 5034a71df50SFrank Blaschka card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 5044a71df50SFrank Blaschka memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, 5054a71df50SFrank Blaschka OSA_ADDR_LEN); 50674eacdb9SFrank Blaschka dev_info(&card->gdev->dev, 507d998ab0bSH Hartley Sweeten "MAC address %pM successfully registered on device %s\n", 508d998ab0bSH Hartley Sweeten card->dev->dev_addr, card->dev->name); 5094a71df50SFrank Blaschka } 5104a71df50SFrank Blaschka return 0; 5114a71df50SFrank Blaschka } 5124a71df50SFrank Blaschka 5134a71df50SFrank Blaschka static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) 5144a71df50SFrank Blaschka { 515d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); 5164a71df50SFrank Blaschka return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, 5174a71df50SFrank Blaschka qeth_l2_send_setmac_cb); 5184a71df50SFrank Blaschka } 5194a71df50SFrank Blaschka 5204a71df50SFrank Blaschka static int qeth_l2_send_delmac_cb(struct qeth_card *card, 5214a71df50SFrank Blaschka struct qeth_reply *reply, 5224a71df50SFrank Blaschka unsigned long data) 5234a71df50SFrank Blaschka { 5244a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 5254a71df50SFrank Blaschka 526d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); 5274a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 5284a71df50SFrank Blaschka if (cmd->hdr.return_code) { 529d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); 5304a71df50SFrank Blaschka cmd->hdr.return_code = -EIO; 5314a71df50SFrank Blaschka return 0; 5324a71df50SFrank Blaschka } 5334a71df50SFrank Blaschka card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 5344a71df50SFrank Blaschka 5354a71df50SFrank Blaschka return 0; 5364a71df50SFrank Blaschka } 5374a71df50SFrank Blaschka 5384a71df50SFrank Blaschka static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) 5394a71df50SFrank Blaschka { 540d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); 5414a71df50SFrank Blaschka if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 5424a71df50SFrank Blaschka return 0; 5434a71df50SFrank Blaschka return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, 5444a71df50SFrank Blaschka qeth_l2_send_delmac_cb); 5454a71df50SFrank Blaschka } 5464a71df50SFrank Blaschka 5474a71df50SFrank Blaschka static int qeth_l2_request_initial_mac(struct qeth_card *card) 5484a71df50SFrank Blaschka { 5494a71df50SFrank Blaschka int rc = 0; 5504a71df50SFrank Blaschka char vendor_pre[] = {0x02, 0x00, 0x00}; 5514a71df50SFrank Blaschka 552d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "doL2init"); 553d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); 5544a71df50SFrank Blaschka 5554a71df50SFrank Blaschka rc = qeth_query_setadapterparms(card); 5564a71df50SFrank Blaschka if (rc) { 55714cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "could not query adapter parameters on " 55814cc21b6SFrank Blaschka "device %s: x%x\n", CARD_BUS_ID(card), rc); 5594a71df50SFrank Blaschka } 5604a71df50SFrank Blaschka 561f1d58672SUrsula Braun if ((card->info.type == QETH_CARD_TYPE_IQD) || 562f1d58672SUrsula Braun (card->info.guestlan)) { 5634a71df50SFrank Blaschka rc = qeth_setadpparms_change_macaddr(card); 5644a71df50SFrank Blaschka if (rc) { 56514cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "couldn't get MAC address on " 56614cc21b6SFrank Blaschka "device %s: x%x\n", CARD_BUS_ID(card), rc); 567d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 5684a71df50SFrank Blaschka return rc; 5694a71df50SFrank Blaschka } 570d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); 5714a71df50SFrank Blaschka } else { 5724a71df50SFrank Blaschka random_ether_addr(card->dev->dev_addr); 5734a71df50SFrank Blaschka memcpy(card->dev->dev_addr, vendor_pre, 3); 5744a71df50SFrank Blaschka } 5754a71df50SFrank Blaschka return 0; 5764a71df50SFrank Blaschka } 5774a71df50SFrank Blaschka 5784a71df50SFrank Blaschka static int qeth_l2_set_mac_address(struct net_device *dev, void *p) 5794a71df50SFrank Blaschka { 5804a71df50SFrank Blaschka struct sockaddr *addr = p; 581509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 5824a71df50SFrank Blaschka int rc = 0; 5834a71df50SFrank Blaschka 584d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 3, "setmac"); 5854a71df50SFrank Blaschka 5864a71df50SFrank Blaschka if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { 587d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 3, "setmcINV"); 5884a71df50SFrank Blaschka return -EOPNOTSUPP; 5894a71df50SFrank Blaschka } 5904a71df50SFrank Blaschka 5914a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_OSN) { 592d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); 5934a71df50SFrank Blaschka return -EOPNOTSUPP; 5944a71df50SFrank Blaschka } 595d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); 596d11ba0c4SPeter Tiedemann QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); 5978e98ac48SUrsula Braun if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 5988e98ac48SUrsula Braun QETH_DBF_TEXT(TRACE, 3, "setmcREC"); 5998e98ac48SUrsula Braun return -ERESTARTSYS; 6008e98ac48SUrsula Braun } 6014a71df50SFrank Blaschka rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); 6024a71df50SFrank Blaschka if (!rc) 6034a71df50SFrank Blaschka rc = qeth_l2_send_setmac(card, addr->sa_data); 6044a71df50SFrank Blaschka return rc; 6054a71df50SFrank Blaschka } 6064a71df50SFrank Blaschka 6074a71df50SFrank Blaschka static void qeth_l2_set_multicast_list(struct net_device *dev) 6084a71df50SFrank Blaschka { 609509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 6107db2266aSFrank Blaschka struct dev_addr_list *dm; 611ccffad25SJiri Pirko struct netdev_hw_addr *ha; 6124a71df50SFrank Blaschka 6134a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_OSN) 6144a71df50SFrank Blaschka return ; 6154a71df50SFrank Blaschka 616d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 3, "setmulti"); 6178e98ac48SUrsula Braun if (qeth_threads_running(card, QETH_RECOVER_THREAD) && 6188e98ac48SUrsula Braun (card->state != CARD_STATE_UP)) 6198e98ac48SUrsula Braun return; 6204a71df50SFrank Blaschka qeth_l2_del_all_mc(card); 6214a71df50SFrank Blaschka spin_lock_bh(&card->mclock); 6224a71df50SFrank Blaschka for (dm = dev->mc_list; dm; dm = dm->next) 6237db2266aSFrank Blaschka qeth_l2_add_mc(card, dm->da_addr, 0); 6247db2266aSFrank Blaschka 62531278e71SJiri Pirko list_for_each_entry(ha, &dev->uc.list, list) 626ccffad25SJiri Pirko qeth_l2_add_mc(card, ha->addr, 1); 6277db2266aSFrank Blaschka 6284a71df50SFrank Blaschka spin_unlock_bh(&card->mclock); 6294a71df50SFrank Blaschka if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 6304a71df50SFrank Blaschka return; 6314a71df50SFrank Blaschka qeth_setadp_promisc_mode(card); 6324a71df50SFrank Blaschka } 6334a71df50SFrank Blaschka 6344a71df50SFrank Blaschka static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 6354a71df50SFrank Blaschka { 6364a71df50SFrank Blaschka int rc; 6374a71df50SFrank Blaschka struct qeth_hdr *hdr = NULL; 6384a71df50SFrank Blaschka int elements = 0; 639509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 6404a71df50SFrank Blaschka struct sk_buff *new_skb = skb; 6414a71df50SFrank Blaschka int ipv = qeth_get_ip_version(skb); 642ce73e10eSKlaus-Dieter Wacker int cast_type = qeth_l2_get_cast_type(card, skb); 6434a71df50SFrank Blaschka struct qeth_qdio_out_q *queue = card->qdio.out_qs 6444a71df50SFrank Blaschka [qeth_get_priority_queue(card, skb, ipv, cast_type)]; 6454a71df50SFrank Blaschka int tx_bytes = skb->len; 646683d718aSFrank Blaschka int data_offset = -1; 647683d718aSFrank Blaschka int elements_needed = 0; 648683d718aSFrank Blaschka int hd_len = 0; 6494a71df50SFrank Blaschka 6504a71df50SFrank Blaschka if ((card->state != CARD_STATE_UP) || !card->lan_online) { 6514a71df50SFrank Blaschka card->stats.tx_carrier_errors++; 6524a71df50SFrank Blaschka goto tx_drop; 6534a71df50SFrank Blaschka } 6544a71df50SFrank Blaschka 6554a71df50SFrank Blaschka if ((card->info.type == QETH_CARD_TYPE_OSN) && 6564a71df50SFrank Blaschka (skb->protocol == htons(ETH_P_IPV6))) 6574a71df50SFrank Blaschka goto tx_drop; 6584a71df50SFrank Blaschka 6594a71df50SFrank Blaschka if (card->options.performance_stats) { 6604a71df50SFrank Blaschka card->perf_stats.outbound_cnt++; 6614a71df50SFrank Blaschka card->perf_stats.outbound_start_time = qeth_get_micros(); 6624a71df50SFrank Blaschka } 6634a71df50SFrank Blaschka netif_stop_queue(dev); 6644a71df50SFrank Blaschka 6654a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_OSN) 6664a71df50SFrank Blaschka hdr = (struct qeth_hdr *)skb->data; 6674a71df50SFrank Blaschka else { 66864ef8957SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) { 669683d718aSFrank Blaschka new_skb = skb; 670683d718aSFrank Blaschka data_offset = ETH_HLEN; 671683d718aSFrank Blaschka hd_len = ETH_HLEN; 672683d718aSFrank Blaschka hdr = kmem_cache_alloc(qeth_core_header_cache, 673683d718aSFrank Blaschka GFP_ATOMIC); 674683d718aSFrank Blaschka if (!hdr) 675683d718aSFrank Blaschka goto tx_drop; 676683d718aSFrank Blaschka elements_needed++; 677683d718aSFrank Blaschka skb_reset_mac_header(new_skb); 678683d718aSFrank Blaschka qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); 679683d718aSFrank Blaschka hdr->hdr.l2.pkt_length = new_skb->len; 680683d718aSFrank Blaschka memcpy(((char *)hdr) + sizeof(struct qeth_hdr), 681683d718aSFrank Blaschka skb_mac_header(new_skb), ETH_HLEN); 682683d718aSFrank Blaschka } else { 683f90b744eSFrank Blaschka /* create a clone with writeable headroom */ 684683d718aSFrank Blaschka new_skb = skb_realloc_headroom(skb, 685683d718aSFrank Blaschka sizeof(struct qeth_hdr)); 6864a71df50SFrank Blaschka if (!new_skb) 6874a71df50SFrank Blaschka goto tx_drop; 688f90b744eSFrank Blaschka hdr = (struct qeth_hdr *)skb_push(new_skb, 689f90b744eSFrank Blaschka sizeof(struct qeth_hdr)); 690683d718aSFrank Blaschka skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); 6914a71df50SFrank Blaschka qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); 6924a71df50SFrank Blaschka } 693683d718aSFrank Blaschka } 6944a71df50SFrank Blaschka 695683d718aSFrank Blaschka elements = qeth_get_elements_no(card, (void *)hdr, new_skb, 696683d718aSFrank Blaschka elements_needed); 697683d718aSFrank Blaschka if (!elements) { 698683d718aSFrank Blaschka if (data_offset >= 0) 699683d718aSFrank Blaschka kmem_cache_free(qeth_core_header_cache, hdr); 7004a71df50SFrank Blaschka goto tx_drop; 7014a71df50SFrank Blaschka } 7024a71df50SFrank Blaschka 7034a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_IQD) 7044a71df50SFrank Blaschka rc = qeth_do_send_packet(card, queue, new_skb, hdr, 70564ef8957SFrank Blaschka elements); 7064a71df50SFrank Blaschka else 7074a71df50SFrank Blaschka rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, 70864ef8957SFrank Blaschka elements, data_offset, hd_len); 7094a71df50SFrank Blaschka if (!rc) { 7104a71df50SFrank Blaschka card->stats.tx_packets++; 7114a71df50SFrank Blaschka card->stats.tx_bytes += tx_bytes; 7124a71df50SFrank Blaschka if (new_skb != skb) 7134a71df50SFrank Blaschka dev_kfree_skb_any(skb); 714ec634fe3SPatrick McHardy rc = NETDEV_TX_OK; 7154a71df50SFrank Blaschka } else { 716683d718aSFrank Blaschka if (data_offset >= 0) 717683d718aSFrank Blaschka kmem_cache_free(qeth_core_header_cache, hdr); 718683d718aSFrank Blaschka 7194a71df50SFrank Blaschka if (rc == -EBUSY) { 7204a71df50SFrank Blaschka if (new_skb != skb) 7214a71df50SFrank Blaschka dev_kfree_skb_any(new_skb); 7224a71df50SFrank Blaschka return NETDEV_TX_BUSY; 7234a71df50SFrank Blaschka } else 7244a71df50SFrank Blaschka goto tx_drop; 7254a71df50SFrank Blaschka } 7264a71df50SFrank Blaschka 7274a71df50SFrank Blaschka netif_wake_queue(dev); 7284a71df50SFrank Blaschka if (card->options.performance_stats) 7294a71df50SFrank Blaschka card->perf_stats.outbound_time += qeth_get_micros() - 7304a71df50SFrank Blaschka card->perf_stats.outbound_start_time; 7314a71df50SFrank Blaschka return rc; 7324a71df50SFrank Blaschka 7334a71df50SFrank Blaschka tx_drop: 7344a71df50SFrank Blaschka card->stats.tx_dropped++; 7354a71df50SFrank Blaschka card->stats.tx_errors++; 7364a71df50SFrank Blaschka if ((new_skb != skb) && new_skb) 7374a71df50SFrank Blaschka dev_kfree_skb_any(new_skb); 7384a71df50SFrank Blaschka dev_kfree_skb_any(skb); 739d0ec0f54SFrank Blaschka netif_wake_queue(dev); 7404a71df50SFrank Blaschka return NETDEV_TX_OK; 7414a71df50SFrank Blaschka } 7424a71df50SFrank Blaschka 7434a71df50SFrank Blaschka static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, 744779e6e1cSJan Glauber unsigned int qdio_err, unsigned int queue, 7454a71df50SFrank Blaschka int first_element, int count, unsigned long card_ptr) 7464a71df50SFrank Blaschka { 7474a71df50SFrank Blaschka struct net_device *net_dev; 7484a71df50SFrank Blaschka struct qeth_card *card; 7494a71df50SFrank Blaschka struct qeth_qdio_buffer *buffer; 7504a71df50SFrank Blaschka int index; 7514a71df50SFrank Blaschka int i; 7524a71df50SFrank Blaschka 7534a71df50SFrank Blaschka card = (struct qeth_card *) card_ptr; 7544a71df50SFrank Blaschka net_dev = card->dev; 7554a71df50SFrank Blaschka if (card->options.performance_stats) { 7564a71df50SFrank Blaschka card->perf_stats.inbound_cnt++; 7574a71df50SFrank Blaschka card->perf_stats.inbound_start_time = qeth_get_micros(); 7584a71df50SFrank Blaschka } 759779e6e1cSJan Glauber if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { 760d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 1, "qdinchk"); 761d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); 762d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, 7634a71df50SFrank Blaschka count); 764779e6e1cSJan Glauber QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); 7654a71df50SFrank Blaschka qeth_schedule_recovery(card); 7664a71df50SFrank Blaschka return; 7674a71df50SFrank Blaschka } 7684a71df50SFrank Blaschka for (i = first_element; i < (first_element + count); ++i) { 7694a71df50SFrank Blaschka index = i % QDIO_MAX_BUFFERS_PER_Q; 7704a71df50SFrank Blaschka buffer = &card->qdio.in_q->bufs[index]; 771779e6e1cSJan Glauber if (!(qdio_err && 772779e6e1cSJan Glauber qeth_check_qdio_errors(buffer->buffer, qdio_err, "qinerr"))) 7734a71df50SFrank Blaschka qeth_l2_process_inbound_buffer(card, buffer, index); 7744a71df50SFrank Blaschka /* clear buffer and give back to hardware */ 7754a71df50SFrank Blaschka qeth_put_buffer_pool_entry(card, buffer->pool_entry); 7764a71df50SFrank Blaschka qeth_queue_input_buffer(card, index); 7774a71df50SFrank Blaschka } 7784a71df50SFrank Blaschka if (card->options.performance_stats) 7794a71df50SFrank Blaschka card->perf_stats.inbound_time += qeth_get_micros() - 7804a71df50SFrank Blaschka card->perf_stats.inbound_start_time; 7814a71df50SFrank Blaschka } 7824a71df50SFrank Blaschka 7834a71df50SFrank Blaschka static int qeth_l2_open(struct net_device *dev) 7844a71df50SFrank Blaschka { 785509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 7864a71df50SFrank Blaschka 787d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 4, "qethopen"); 7884a71df50SFrank Blaschka if (card->state != CARD_STATE_SOFTSETUP) 7894a71df50SFrank Blaschka return -ENODEV; 7904a71df50SFrank Blaschka 7914a71df50SFrank Blaschka if ((card->info.type != QETH_CARD_TYPE_OSN) && 7924a71df50SFrank Blaschka (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 793d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 4, "nomacadr"); 7944a71df50SFrank Blaschka return -EPERM; 7954a71df50SFrank Blaschka } 7964a71df50SFrank Blaschka card->data.state = CH_STATE_UP; 7974a71df50SFrank Blaschka card->state = CARD_STATE_UP; 7984a71df50SFrank Blaschka netif_start_queue(dev); 7994a71df50SFrank Blaschka 8004a71df50SFrank Blaschka if (!card->lan_online && netif_carrier_ok(dev)) 8014a71df50SFrank Blaschka netif_carrier_off(dev); 8024a71df50SFrank Blaschka return 0; 8034a71df50SFrank Blaschka } 8044a71df50SFrank Blaschka 8054a71df50SFrank Blaschka 8064a71df50SFrank Blaschka static int qeth_l2_stop(struct net_device *dev) 8074a71df50SFrank Blaschka { 808509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 8094a71df50SFrank Blaschka 810d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 4, "qethstop"); 8114a71df50SFrank Blaschka netif_tx_disable(dev); 8124a71df50SFrank Blaschka if (card->state == CARD_STATE_UP) 8134a71df50SFrank Blaschka card->state = CARD_STATE_SOFTSETUP; 8144a71df50SFrank Blaschka return 0; 8154a71df50SFrank Blaschka } 8164a71df50SFrank Blaschka 8174a71df50SFrank Blaschka static int qeth_l2_probe_device(struct ccwgroup_device *gdev) 8184a71df50SFrank Blaschka { 8194a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 8204a71df50SFrank Blaschka 8214a71df50SFrank Blaschka INIT_LIST_HEAD(&card->vid_list); 8224a71df50SFrank Blaschka INIT_LIST_HEAD(&card->mc_list); 8234a71df50SFrank Blaschka card->options.layer2 = 1; 8244a71df50SFrank Blaschka card->discipline.input_handler = (qdio_handler_t *) 8254a71df50SFrank Blaschka qeth_l2_qdio_input_handler; 8264a71df50SFrank Blaschka card->discipline.output_handler = (qdio_handler_t *) 8274a71df50SFrank Blaschka qeth_qdio_output_handler; 8284a71df50SFrank Blaschka card->discipline.recover = qeth_l2_recover; 8294a71df50SFrank Blaschka return 0; 8304a71df50SFrank Blaschka } 8314a71df50SFrank Blaschka 8324a71df50SFrank Blaschka static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) 8334a71df50SFrank Blaschka { 8344a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 8354a71df50SFrank Blaschka 836f2148565SUrsula Braun qeth_set_allowed_threads(card, 0, 1); 8374a71df50SFrank Blaschka wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 8384a71df50SFrank Blaschka 8394a71df50SFrank Blaschka if (cgdev->state == CCWGROUP_ONLINE) { 8404a71df50SFrank Blaschka card->use_hard_stop = 1; 8414a71df50SFrank Blaschka qeth_l2_set_offline(cgdev); 8424a71df50SFrank Blaschka } 8434a71df50SFrank Blaschka 8444a71df50SFrank Blaschka if (card->dev) { 8454a71df50SFrank Blaschka unregister_netdev(card->dev); 8464a71df50SFrank Blaschka card->dev = NULL; 8474a71df50SFrank Blaschka } 8484a71df50SFrank Blaschka 8494a71df50SFrank Blaschka qeth_l2_del_all_mc(card); 8504a71df50SFrank Blaschka return; 8514a71df50SFrank Blaschka } 8524a71df50SFrank Blaschka 8530fc0b732SStephen Hemminger static const struct ethtool_ops qeth_l2_ethtool_ops = { 8544a71df50SFrank Blaschka .get_link = ethtool_op_get_link, 8554a71df50SFrank Blaschka .get_strings = qeth_core_get_strings, 8564a71df50SFrank Blaschka .get_ethtool_stats = qeth_core_get_ethtool_stats, 857df8b4ec8SBen Hutchings .get_sset_count = qeth_core_get_sset_count, 8584a71df50SFrank Blaschka .get_drvinfo = qeth_core_get_drvinfo, 8593f9975aaSFrank Blaschka .get_settings = qeth_core_ethtool_get_settings, 8604a71df50SFrank Blaschka }; 8614a71df50SFrank Blaschka 8620fc0b732SStephen Hemminger static const struct ethtool_ops qeth_l2_osn_ops = { 8634a71df50SFrank Blaschka .get_strings = qeth_core_get_strings, 8644a71df50SFrank Blaschka .get_ethtool_stats = qeth_core_get_ethtool_stats, 865df8b4ec8SBen Hutchings .get_sset_count = qeth_core_get_sset_count, 8664a71df50SFrank Blaschka .get_drvinfo = qeth_core_get_drvinfo, 8674a71df50SFrank Blaschka }; 8684a71df50SFrank Blaschka 8693d58cefdSFrank Blaschka static const struct net_device_ops qeth_l2_netdev_ops = { 8708403b13cSFrank Blaschka .ndo_open = qeth_l2_open, 8718403b13cSFrank Blaschka .ndo_stop = qeth_l2_stop, 8728403b13cSFrank Blaschka .ndo_get_stats = qeth_get_stats, 8738403b13cSFrank Blaschka .ndo_start_xmit = qeth_l2_hard_start_xmit, 8748403b13cSFrank Blaschka .ndo_validate_addr = eth_validate_addr, 8758403b13cSFrank Blaschka .ndo_set_multicast_list = qeth_l2_set_multicast_list, 8768403b13cSFrank Blaschka .ndo_do_ioctl = qeth_l2_do_ioctl, 8778403b13cSFrank Blaschka .ndo_set_mac_address = qeth_l2_set_mac_address, 8788403b13cSFrank Blaschka .ndo_change_mtu = qeth_change_mtu, 8798403b13cSFrank Blaschka .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, 8808403b13cSFrank Blaschka .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, 8818403b13cSFrank Blaschka .ndo_tx_timeout = qeth_tx_timeout, 8828403b13cSFrank Blaschka }; 8838403b13cSFrank Blaschka 8844a71df50SFrank Blaschka static int qeth_l2_setup_netdev(struct qeth_card *card) 8854a71df50SFrank Blaschka { 8864a71df50SFrank Blaschka switch (card->info.type) { 8874a71df50SFrank Blaschka case QETH_CARD_TYPE_OSAE: 8884a71df50SFrank Blaschka card->dev = alloc_etherdev(0); 8894a71df50SFrank Blaschka break; 8904a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 8914a71df50SFrank Blaschka card->dev = alloc_netdev(0, "hsi%d", ether_setup); 8924a71df50SFrank Blaschka break; 8934a71df50SFrank Blaschka case QETH_CARD_TYPE_OSN: 8944a71df50SFrank Blaschka card->dev = alloc_netdev(0, "osn%d", ether_setup); 8954a71df50SFrank Blaschka card->dev->flags |= IFF_NOARP; 8964a71df50SFrank Blaschka break; 8974a71df50SFrank Blaschka default: 8984a71df50SFrank Blaschka card->dev = alloc_etherdev(0); 8994a71df50SFrank Blaschka } 9004a71df50SFrank Blaschka 9014a71df50SFrank Blaschka if (!card->dev) 9024a71df50SFrank Blaschka return -ENODEV; 9034a71df50SFrank Blaschka 904509e2562SHeiko Carstens card->dev->ml_priv = card; 9054a71df50SFrank Blaschka card->dev->watchdog_timeo = QETH_TX_TIMEOUT; 9064a71df50SFrank Blaschka card->dev->mtu = card->info.initial_mtu; 9078403b13cSFrank Blaschka card->dev->netdev_ops = &qeth_l2_netdev_ops; 9084a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_OSN) 9094a71df50SFrank Blaschka SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); 9104a71df50SFrank Blaschka else 9114a71df50SFrank Blaschka SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); 9124a71df50SFrank Blaschka card->dev->features |= NETIF_F_HW_VLAN_FILTER; 9134a71df50SFrank Blaschka card->info.broadcast_capable = 1; 9144a71df50SFrank Blaschka qeth_l2_request_initial_mac(card); 9154a71df50SFrank Blaschka SET_NETDEV_DEV(card->dev, &card->gdev->dev); 9164a71df50SFrank Blaschka return register_netdev(card->dev); 9174a71df50SFrank Blaschka } 9184a71df50SFrank Blaschka 9194a71df50SFrank Blaschka static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) 9204a71df50SFrank Blaschka { 9214a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 9224a71df50SFrank Blaschka int rc = 0; 9234a71df50SFrank Blaschka enum qeth_card_states recover_flag; 9244a71df50SFrank Blaschka 9254a71df50SFrank Blaschka BUG_ON(!card); 926d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "setonlin"); 927d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 9284a71df50SFrank Blaschka 9294a71df50SFrank Blaschka qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); 9304a71df50SFrank Blaschka recover_flag = card->state; 9314a71df50SFrank Blaschka rc = qeth_core_hardsetup_card(card); 9324a71df50SFrank Blaschka if (rc) { 933d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 934aa909224SUrsula Braun rc = -ENODEV; 9354a71df50SFrank Blaschka goto out_remove; 9364a71df50SFrank Blaschka } 9374a71df50SFrank Blaschka 938aa909224SUrsula Braun if (!card->dev && qeth_l2_setup_netdev(card)) { 939aa909224SUrsula Braun rc = -ENODEV; 9404a71df50SFrank Blaschka goto out_remove; 941aa909224SUrsula Braun } 9424a71df50SFrank Blaschka 9434a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_OSN) 9444a71df50SFrank Blaschka qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); 9454a71df50SFrank Blaschka 9464a71df50SFrank Blaschka card->state = CARD_STATE_HARDSETUP; 9474a71df50SFrank Blaschka qeth_print_status_message(card); 9484a71df50SFrank Blaschka 9494a71df50SFrank Blaschka /* softsetup */ 950d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "softsetp"); 9514a71df50SFrank Blaschka 9524a71df50SFrank Blaschka rc = qeth_send_startlan(card); 9534a71df50SFrank Blaschka if (rc) { 954d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 9554a71df50SFrank Blaschka if (rc == 0xe080) { 95674eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, 95774eacdb9SFrank Blaschka "The LAN is offline\n"); 9584a71df50SFrank Blaschka card->lan_online = 0; 959f2148565SUrsula Braun return 0; 9604a71df50SFrank Blaschka } 961aa909224SUrsula Braun rc = -ENODEV; 962f2148565SUrsula Braun goto out_remove; 9634a71df50SFrank Blaschka } else 9644a71df50SFrank Blaschka card->lan_online = 1; 9654a71df50SFrank Blaschka 9664a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_OSN) { 967d64ecc22SEinar Lueck /* configure isolation level */ 968d64ecc22SEinar Lueck qeth_set_access_ctrl_online(card); 9694a71df50SFrank Blaschka qeth_l2_process_vlans(card, 0); 9704a71df50SFrank Blaschka } 9714a71df50SFrank Blaschka 9724a71df50SFrank Blaschka netif_tx_disable(card->dev); 9734a71df50SFrank Blaschka 9744a71df50SFrank Blaschka rc = qeth_init_qdio_queues(card); 9754a71df50SFrank Blaschka if (rc) { 976d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 977aa909224SUrsula Braun rc = -ENODEV; 9784a71df50SFrank Blaschka goto out_remove; 9794a71df50SFrank Blaschka } 9804a71df50SFrank Blaschka card->state = CARD_STATE_SOFTSETUP; 9814a71df50SFrank Blaschka netif_carrier_on(card->dev); 9824a71df50SFrank Blaschka 9834a71df50SFrank Blaschka qeth_set_allowed_threads(card, 0xffffffff, 0); 9844a71df50SFrank Blaschka if (recover_flag == CARD_STATE_RECOVER) { 9854a71df50SFrank Blaschka if (recovery_mode && 9864a71df50SFrank Blaschka card->info.type != QETH_CARD_TYPE_OSN) { 9874a71df50SFrank Blaschka qeth_l2_open(card->dev); 9884a71df50SFrank Blaschka } else { 9894a71df50SFrank Blaschka rtnl_lock(); 9904a71df50SFrank Blaschka dev_open(card->dev); 9914a71df50SFrank Blaschka rtnl_unlock(); 9924a71df50SFrank Blaschka } 9934a71df50SFrank Blaschka /* this also sets saved unicast addresses */ 9944a71df50SFrank Blaschka qeth_l2_set_multicast_list(card->dev); 9954a71df50SFrank Blaschka } 9964a71df50SFrank Blaschka /* let user_space know that device is online */ 9974a71df50SFrank Blaschka kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); 9984a71df50SFrank Blaschka return 0; 999aa909224SUrsula Braun 10004a71df50SFrank Blaschka out_remove: 10014a71df50SFrank Blaschka card->use_hard_stop = 1; 10024a71df50SFrank Blaschka qeth_l2_stop_card(card, 0); 10034a71df50SFrank Blaschka ccw_device_set_offline(CARD_DDEV(card)); 10044a71df50SFrank Blaschka ccw_device_set_offline(CARD_WDEV(card)); 10054a71df50SFrank Blaschka ccw_device_set_offline(CARD_RDEV(card)); 10064a71df50SFrank Blaschka if (recover_flag == CARD_STATE_RECOVER) 10074a71df50SFrank Blaschka card->state = CARD_STATE_RECOVER; 10084a71df50SFrank Blaschka else 10094a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 1010aa909224SUrsula Braun return rc; 10114a71df50SFrank Blaschka } 10124a71df50SFrank Blaschka 10134a71df50SFrank Blaschka static int qeth_l2_set_online(struct ccwgroup_device *gdev) 10144a71df50SFrank Blaschka { 10154a71df50SFrank Blaschka return __qeth_l2_set_online(gdev, 0); 10164a71df50SFrank Blaschka } 10174a71df50SFrank Blaschka 10184a71df50SFrank Blaschka static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, 10194a71df50SFrank Blaschka int recovery_mode) 10204a71df50SFrank Blaschka { 10214a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 10224a71df50SFrank Blaschka int rc = 0, rc2 = 0, rc3 = 0; 10234a71df50SFrank Blaschka enum qeth_card_states recover_flag; 10244a71df50SFrank Blaschka 1025d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 3, "setoffl"); 1026d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); 10274a71df50SFrank Blaschka 10284a71df50SFrank Blaschka if (card->dev && netif_carrier_ok(card->dev)) 10294a71df50SFrank Blaschka netif_carrier_off(card->dev); 10304a71df50SFrank Blaschka recover_flag = card->state; 10310f5623c9SUrsula Braun qeth_l2_stop_card(card, recovery_mode); 10324a71df50SFrank Blaschka rc = ccw_device_set_offline(CARD_DDEV(card)); 10334a71df50SFrank Blaschka rc2 = ccw_device_set_offline(CARD_WDEV(card)); 10344a71df50SFrank Blaschka rc3 = ccw_device_set_offline(CARD_RDEV(card)); 10354a71df50SFrank Blaschka if (!rc) 10364a71df50SFrank Blaschka rc = (rc2) ? rc2 : rc3; 10374a71df50SFrank Blaschka if (rc) 1038d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 10394a71df50SFrank Blaschka if (recover_flag == CARD_STATE_UP) 10404a71df50SFrank Blaschka card->state = CARD_STATE_RECOVER; 10414a71df50SFrank Blaschka /* let user_space know that device is offline */ 10424a71df50SFrank Blaschka kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); 10434a71df50SFrank Blaschka return 0; 10444a71df50SFrank Blaschka } 10454a71df50SFrank Blaschka 10464a71df50SFrank Blaschka static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) 10474a71df50SFrank Blaschka { 10484a71df50SFrank Blaschka return __qeth_l2_set_offline(cgdev, 0); 10494a71df50SFrank Blaschka } 10504a71df50SFrank Blaschka 10514a71df50SFrank Blaschka static int qeth_l2_recover(void *ptr) 10524a71df50SFrank Blaschka { 10534a71df50SFrank Blaschka struct qeth_card *card; 10544a71df50SFrank Blaschka int rc = 0; 10554a71df50SFrank Blaschka 10564a71df50SFrank Blaschka card = (struct qeth_card *) ptr; 1057d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "recover1"); 1058d11ba0c4SPeter Tiedemann QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); 10594a71df50SFrank Blaschka if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 10604a71df50SFrank Blaschka return 0; 1061d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "recover2"); 106274eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, 106374eacdb9SFrank Blaschka "A recovery process has been started for the device\n"); 10644a71df50SFrank Blaschka card->use_hard_stop = 1; 10654a71df50SFrank Blaschka __qeth_l2_set_offline(card->gdev, 1); 10664a71df50SFrank Blaschka rc = __qeth_l2_set_online(card->gdev, 1); 10674a71df50SFrank Blaschka /* don't run another scheduled recovery */ 10684a71df50SFrank Blaschka qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 10694a71df50SFrank Blaschka qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 10704a71df50SFrank Blaschka if (!rc) 107174eacdb9SFrank Blaschka dev_info(&card->gdev->dev, 107274eacdb9SFrank Blaschka "Device successfully recovered!\n"); 107328a7e4c9SUrsula Braun else { 1074fc9c2460SUrsula Braun if (card->dev) { 107528a7e4c9SUrsula Braun rtnl_lock(); 107628a7e4c9SUrsula Braun dev_close(card->dev); 107728a7e4c9SUrsula Braun rtnl_unlock(); 1078fc9c2460SUrsula Braun } 107974eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver " 108074eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 108128a7e4c9SUrsula Braun } 10824a71df50SFrank Blaschka return 0; 10834a71df50SFrank Blaschka } 10844a71df50SFrank Blaschka 10854a71df50SFrank Blaschka static int __init qeth_l2_init(void) 10864a71df50SFrank Blaschka { 108774eacdb9SFrank Blaschka pr_info("register layer 2 discipline\n"); 10884a71df50SFrank Blaschka return 0; 10894a71df50SFrank Blaschka } 10904a71df50SFrank Blaschka 10914a71df50SFrank Blaschka static void __exit qeth_l2_exit(void) 10924a71df50SFrank Blaschka { 109374eacdb9SFrank Blaschka pr_info("unregister layer 2 discipline\n"); 10944a71df50SFrank Blaschka } 10954a71df50SFrank Blaschka 10964a71df50SFrank Blaschka static void qeth_l2_shutdown(struct ccwgroup_device *gdev) 10974a71df50SFrank Blaschka { 10984a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 10994a71df50SFrank Blaschka qeth_qdio_clear_card(card, 0); 11004a71df50SFrank Blaschka qeth_clear_qdio_buffers(card); 11014a71df50SFrank Blaschka } 11024a71df50SFrank Blaschka 1103bbcfcdc8SFrank Blaschka static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) 1104bbcfcdc8SFrank Blaschka { 1105bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1106bbcfcdc8SFrank Blaschka 1107bbcfcdc8SFrank Blaschka if (card->dev) 1108bbcfcdc8SFrank Blaschka netif_device_detach(card->dev); 1109bbcfcdc8SFrank Blaschka qeth_set_allowed_threads(card, 0, 1); 1110bbcfcdc8SFrank Blaschka wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 1111bbcfcdc8SFrank Blaschka if (gdev->state == CCWGROUP_OFFLINE) 1112bbcfcdc8SFrank Blaschka return 0; 1113bbcfcdc8SFrank Blaschka if (card->state == CARD_STATE_UP) { 1114bbcfcdc8SFrank Blaschka card->use_hard_stop = 1; 1115bbcfcdc8SFrank Blaschka __qeth_l2_set_offline(card->gdev, 1); 1116bbcfcdc8SFrank Blaschka } else 1117bbcfcdc8SFrank Blaschka __qeth_l2_set_offline(card->gdev, 0); 1118bbcfcdc8SFrank Blaschka return 0; 1119bbcfcdc8SFrank Blaschka } 1120bbcfcdc8SFrank Blaschka 1121bbcfcdc8SFrank Blaschka static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) 1122bbcfcdc8SFrank Blaschka { 1123bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1124bbcfcdc8SFrank Blaschka int rc = 0; 1125bbcfcdc8SFrank Blaschka 1126bbcfcdc8SFrank Blaschka if (gdev->state == CCWGROUP_OFFLINE) 1127bbcfcdc8SFrank Blaschka goto out; 1128bbcfcdc8SFrank Blaschka 1129bbcfcdc8SFrank Blaschka if (card->state == CARD_STATE_RECOVER) { 1130bbcfcdc8SFrank Blaschka rc = __qeth_l2_set_online(card->gdev, 1); 1131bbcfcdc8SFrank Blaschka if (rc) { 1132bbcfcdc8SFrank Blaschka if (card->dev) { 1133bbcfcdc8SFrank Blaschka rtnl_lock(); 1134bbcfcdc8SFrank Blaschka dev_close(card->dev); 1135bbcfcdc8SFrank Blaschka rtnl_unlock(); 1136bbcfcdc8SFrank Blaschka } 1137bbcfcdc8SFrank Blaschka } 1138bbcfcdc8SFrank Blaschka } else 1139bbcfcdc8SFrank Blaschka rc = __qeth_l2_set_online(card->gdev, 0); 1140bbcfcdc8SFrank Blaschka out: 1141bbcfcdc8SFrank Blaschka qeth_set_allowed_threads(card, 0xffffffff, 0); 1142bbcfcdc8SFrank Blaschka if (card->dev) 1143bbcfcdc8SFrank Blaschka netif_device_attach(card->dev); 1144bbcfcdc8SFrank Blaschka if (rc) 1145bbcfcdc8SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver " 1146bbcfcdc8SFrank Blaschka "failed to recover an error on the device\n"); 1147bbcfcdc8SFrank Blaschka return rc; 1148bbcfcdc8SFrank Blaschka } 1149bbcfcdc8SFrank Blaschka 11504a71df50SFrank Blaschka struct ccwgroup_driver qeth_l2_ccwgroup_driver = { 11514a71df50SFrank Blaschka .probe = qeth_l2_probe_device, 11524a71df50SFrank Blaschka .remove = qeth_l2_remove_device, 11534a71df50SFrank Blaschka .set_online = qeth_l2_set_online, 11544a71df50SFrank Blaschka .set_offline = qeth_l2_set_offline, 11554a71df50SFrank Blaschka .shutdown = qeth_l2_shutdown, 1156bbcfcdc8SFrank Blaschka .freeze = qeth_l2_pm_suspend, 1157bbcfcdc8SFrank Blaschka .thaw = qeth_l2_pm_resume, 1158bbcfcdc8SFrank Blaschka .restore = qeth_l2_pm_resume, 11594a71df50SFrank Blaschka }; 11604a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); 11614a71df50SFrank Blaschka 11624a71df50SFrank Blaschka static int qeth_osn_send_control_data(struct qeth_card *card, int len, 11634a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 11644a71df50SFrank Blaschka { 11654a71df50SFrank Blaschka unsigned long flags; 11664a71df50SFrank Blaschka int rc = 0; 11674a71df50SFrank Blaschka 1168d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 5, "osndctrd"); 11694a71df50SFrank Blaschka 11704a71df50SFrank Blaschka wait_event(card->wait_q, 11714a71df50SFrank Blaschka atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); 11724a71df50SFrank Blaschka qeth_prepare_control_data(card, len, iob); 1173d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); 11744a71df50SFrank Blaschka spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); 11754a71df50SFrank Blaschka rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, 11764a71df50SFrank Blaschka (addr_t) iob, 0, 0); 11774a71df50SFrank Blaschka spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); 11784a71df50SFrank Blaschka if (rc) { 117914cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " 11804a71df50SFrank Blaschka "ccw_device_start rc = %i\n", rc); 1181d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); 11824a71df50SFrank Blaschka qeth_release_buffer(iob->channel, iob); 11834a71df50SFrank Blaschka atomic_set(&card->write.irq_pending, 0); 11844a71df50SFrank Blaschka wake_up(&card->wait_q); 11854a71df50SFrank Blaschka } 11864a71df50SFrank Blaschka return rc; 11874a71df50SFrank Blaschka } 11884a71df50SFrank Blaschka 11894a71df50SFrank Blaschka static int qeth_osn_send_ipa_cmd(struct qeth_card *card, 11904a71df50SFrank Blaschka struct qeth_cmd_buffer *iob, int data_len) 11914a71df50SFrank Blaschka { 11924a71df50SFrank Blaschka u16 s1, s2; 11934a71df50SFrank Blaschka 1194d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 4, "osndipa"); 11954a71df50SFrank Blaschka 11964a71df50SFrank Blaschka qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); 11974a71df50SFrank Blaschka s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 11984a71df50SFrank Blaschka s2 = (u16)data_len; 11994a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 12004a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 12014a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 12024a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 12034a71df50SFrank Blaschka return qeth_osn_send_control_data(card, s1, iob); 12044a71df50SFrank Blaschka } 12054a71df50SFrank Blaschka 12064a71df50SFrank Blaschka int qeth_osn_assist(struct net_device *dev, void *data, int data_len) 12074a71df50SFrank Blaschka { 12084a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 12094a71df50SFrank Blaschka struct qeth_card *card; 12104a71df50SFrank Blaschka int rc; 12114a71df50SFrank Blaschka 1212d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); 12134a71df50SFrank Blaschka if (!dev) 12144a71df50SFrank Blaschka return -ENODEV; 1215509e2562SHeiko Carstens card = dev->ml_priv; 12164a71df50SFrank Blaschka if (!card) 12174a71df50SFrank Blaschka return -ENODEV; 12184a71df50SFrank Blaschka if ((card->state != CARD_STATE_UP) && 12194a71df50SFrank Blaschka (card->state != CARD_STATE_SOFTSETUP)) 12204a71df50SFrank Blaschka return -ENODEV; 12214a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 12224a71df50SFrank Blaschka memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); 12234a71df50SFrank Blaschka rc = qeth_osn_send_ipa_cmd(card, iob, data_len); 12244a71df50SFrank Blaschka return rc; 12254a71df50SFrank Blaschka } 12264a71df50SFrank Blaschka EXPORT_SYMBOL(qeth_osn_assist); 12274a71df50SFrank Blaschka 12284a71df50SFrank Blaschka int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, 12294a71df50SFrank Blaschka int (*assist_cb)(struct net_device *, void *), 12304a71df50SFrank Blaschka int (*data_cb)(struct sk_buff *)) 12314a71df50SFrank Blaschka { 12324a71df50SFrank Blaschka struct qeth_card *card; 12334a71df50SFrank Blaschka 1234d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "osnreg"); 12354a71df50SFrank Blaschka *dev = qeth_l2_netdev_by_devno(read_dev_no); 12364a71df50SFrank Blaschka if (*dev == NULL) 12374a71df50SFrank Blaschka return -ENODEV; 1238509e2562SHeiko Carstens card = (*dev)->ml_priv; 12394a71df50SFrank Blaschka if (!card) 12404a71df50SFrank Blaschka return -ENODEV; 12414a71df50SFrank Blaschka if ((assist_cb == NULL) || (data_cb == NULL)) 12424a71df50SFrank Blaschka return -EINVAL; 12434a71df50SFrank Blaschka card->osn_info.assist_cb = assist_cb; 12444a71df50SFrank Blaschka card->osn_info.data_cb = data_cb; 12454a71df50SFrank Blaschka return 0; 12464a71df50SFrank Blaschka } 12474a71df50SFrank Blaschka EXPORT_SYMBOL(qeth_osn_register); 12484a71df50SFrank Blaschka 12494a71df50SFrank Blaschka void qeth_osn_deregister(struct net_device *dev) 12504a71df50SFrank Blaschka { 12514a71df50SFrank Blaschka struct qeth_card *card; 12524a71df50SFrank Blaschka 1253d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(TRACE, 2, "osndereg"); 12544a71df50SFrank Blaschka if (!dev) 12554a71df50SFrank Blaschka return; 1256509e2562SHeiko Carstens card = dev->ml_priv; 12574a71df50SFrank Blaschka if (!card) 12584a71df50SFrank Blaschka return; 12594a71df50SFrank Blaschka card->osn_info.assist_cb = NULL; 12604a71df50SFrank Blaschka card->osn_info.data_cb = NULL; 12614a71df50SFrank Blaschka return; 12624a71df50SFrank Blaschka } 12634a71df50SFrank Blaschka EXPORT_SYMBOL(qeth_osn_deregister); 12644a71df50SFrank Blaschka 12654a71df50SFrank Blaschka module_init(qeth_l2_init); 12664a71df50SFrank Blaschka module_exit(qeth_l2_exit); 12674a71df50SFrank Blaschka MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 12684a71df50SFrank Blaschka MODULE_DESCRIPTION("qeth layer 2 discipline"); 12694a71df50SFrank Blaschka MODULE_LICENSE("GPL"); 1270