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![Lakhvich Dmitriy](/assets/img/avatar_default.png)
In layer2 mode of the qeth driver, MAC address lists from struct net_device require mapping to the OSA-card. The existing implementation is inefficient for lists with more than several MAC addresses, since for every ndo_set_rx_mode callback it removes all MAC addresses first, and then registers the current MAC address list. This patch changes implementation of ndo_set_rx_mode callback in qeth, only performing hardware registration/removal for new/deleted addresses. To shorten lookup of MAC addresses registered addresses are kept in a hashtable instead of a linear list. Signed-off-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Reviewed-by: Thomas Richter <tmricht@de.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2159 lines
58 KiB
C
2159 lines
58 KiB
C
/*
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* Copyright IBM Corp. 2007, 2009
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* Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
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* Frank Pavlic <fpavlic@de.ibm.com>,
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* Thomas Spatzier <tspat@de.ibm.com>,
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* Frank Blaschka <frank.blaschka@de.ibm.com>
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*/
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#define KMSG_COMPONENT "qeth"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/etherdevice.h>
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#include <linux/mii.h>
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#include <linux/ip.h>
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#include <linux/list.h>
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#include <linux/hash.h>
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#include <linux/hashtable.h>
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#include <linux/string.h>
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#include "qeth_core.h"
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#include "qeth_l2.h"
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static int qeth_l2_set_offline(struct ccwgroup_device *);
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static int qeth_l2_stop(struct net_device *);
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static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
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static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
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enum qeth_ipa_cmds);
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static void qeth_l2_set_rx_mode(struct net_device *);
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static int qeth_l2_recover(void *);
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static void qeth_bridgeport_query_support(struct qeth_card *card);
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static void qeth_bridge_state_change(struct qeth_card *card,
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struct qeth_ipa_cmd *cmd);
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static void qeth_bridge_host_event(struct qeth_card *card,
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struct qeth_ipa_cmd *cmd);
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static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
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{
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struct qeth_card *card = dev->ml_priv;
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struct mii_ioctl_data *mii_data;
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int rc = 0;
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if (!card)
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return -ENODEV;
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if (!qeth_card_hw_is_reachable(card))
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return -ENODEV;
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if (card->info.type == QETH_CARD_TYPE_OSN)
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return -EPERM;
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switch (cmd) {
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case SIOC_QETH_ADP_SET_SNMP_CONTROL:
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rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
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break;
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case SIOC_QETH_GET_CARD_TYPE:
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if ((card->info.type == QETH_CARD_TYPE_OSD ||
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card->info.type == QETH_CARD_TYPE_OSM ||
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card->info.type == QETH_CARD_TYPE_OSX) &&
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!card->info.guestlan)
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return 1;
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return 0;
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break;
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case SIOCGMIIPHY:
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mii_data = if_mii(rq);
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mii_data->phy_id = 0;
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break;
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case SIOCGMIIREG:
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mii_data = if_mii(rq);
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if (mii_data->phy_id != 0)
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rc = -EINVAL;
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else
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mii_data->val_out = qeth_mdio_read(dev,
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mii_data->phy_id, mii_data->reg_num);
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break;
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case SIOC_QETH_QUERY_OAT:
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rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
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break;
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default:
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rc = -EOPNOTSUPP;
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}
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if (rc)
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QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
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return rc;
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}
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static int qeth_l2_verify_dev(struct net_device *dev)
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{
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struct qeth_card *card;
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unsigned long flags;
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int rc = 0;
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read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
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list_for_each_entry(card, &qeth_core_card_list.list, list) {
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if (card->dev == dev) {
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rc = QETH_REAL_CARD;
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break;
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}
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}
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read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
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return rc;
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}
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static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
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{
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struct qeth_card *card;
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struct net_device *ndev;
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__u16 temp_dev_no;
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unsigned long flags;
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struct ccw_dev_id read_devid;
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ndev = NULL;
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memcpy(&temp_dev_no, read_dev_no, 2);
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read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
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list_for_each_entry(card, &qeth_core_card_list.list, list) {
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ccw_device_get_id(CARD_RDEV(card), &read_devid);
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if (read_devid.devno == temp_dev_no) {
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ndev = card->dev;
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break;
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}
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}
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read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
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return ndev;
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}
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static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
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{
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int rc;
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if (retcode)
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QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
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switch (retcode) {
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case IPA_RC_SUCCESS:
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rc = 0;
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break;
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case IPA_RC_L2_UNSUPPORTED_CMD:
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rc = -EOPNOTSUPP;
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break;
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case IPA_RC_L2_ADDR_TABLE_FULL:
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rc = -ENOSPC;
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break;
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case IPA_RC_L2_DUP_MAC:
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case IPA_RC_L2_DUP_LAYER3_MAC:
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rc = -EEXIST;
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break;
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case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
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case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
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rc = -EPERM;
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break;
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case IPA_RC_L2_MAC_NOT_FOUND:
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rc = -ENOENT;
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break;
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case -ENOMEM:
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rc = -ENOMEM;
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break;
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default:
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rc = -EIO;
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break;
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}
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return rc;
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}
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static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
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{
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int rc;
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QETH_CARD_TEXT(card, 2, "L2Sgmac");
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rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
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IPA_CMD_SETGMAC));
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if (rc == -EEXIST)
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QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
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mac, QETH_CARD_IFNAME(card));
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else if (rc)
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QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
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mac, QETH_CARD_IFNAME(card), rc);
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return rc;
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}
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static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
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{
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int rc;
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QETH_CARD_TEXT(card, 2, "L2Dgmac");
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rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
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IPA_CMD_DELGMAC));
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if (rc)
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QETH_DBF_MESSAGE(2,
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"Could not delete group MAC %pM on %s: %d\n",
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mac, QETH_CARD_IFNAME(card), rc);
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return rc;
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}
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static inline u32 qeth_l2_mac_hash(const u8 *addr)
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{
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return get_unaligned((u32 *)(&addr[2]));
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}
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static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
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{
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int rc;
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if (mac->is_uc) {
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rc = qeth_setdel_makerc(card,
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qeth_l2_send_setdelmac(card, mac->mac_addr,
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IPA_CMD_SETVMAC));
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} else {
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rc = qeth_setdel_makerc(card,
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qeth_l2_send_setgroupmac(card, mac->mac_addr));
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}
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return rc;
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}
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static void qeth_l2_del_all_macs(struct qeth_card *card, int del)
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{
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struct qeth_mac *mac;
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struct hlist_node *tmp;
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int i;
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spin_lock_bh(&card->mclock);
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hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
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if (del) {
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if (mac->is_uc)
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qeth_l2_send_setdelmac(card, mac->mac_addr,
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IPA_CMD_DELVMAC);
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else
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qeth_l2_send_delgroupmac(card, mac->mac_addr);
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}
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hash_del(&mac->hnode);
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kfree(mac);
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}
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spin_unlock_bh(&card->mclock);
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}
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static inline int qeth_l2_get_cast_type(struct qeth_card *card,
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struct sk_buff *skb)
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{
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if (card->info.type == QETH_CARD_TYPE_OSN)
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return RTN_UNSPEC;
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if (is_broadcast_ether_addr(skb->data))
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return RTN_BROADCAST;
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if (is_multicast_ether_addr(skb->data))
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return RTN_MULTICAST;
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return RTN_UNSPEC;
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}
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static inline void qeth_l2_hdr_csum(struct qeth_card *card,
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struct qeth_hdr *hdr, struct sk_buff *skb)
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{
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struct iphdr *iph = ip_hdr(skb);
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/* tcph->check contains already the pseudo hdr checksum
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* so just set the header flags
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*/
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if (iph->protocol == IPPROTO_UDP)
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hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
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hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
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QETH_HDR_EXT_CSUM_HDR_REQ;
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iph->check = 0;
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if (card->options.performance_stats)
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card->perf_stats.tx_csum++;
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}
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static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
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struct sk_buff *skb, int cast_type)
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{
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struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
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memset(hdr, 0, sizeof(struct qeth_hdr));
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hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
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/* set byte byte 3 to casting flags */
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if (cast_type == RTN_MULTICAST)
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hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
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else if (cast_type == RTN_BROADCAST)
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hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
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else
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hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
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hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
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/* VSWITCH relies on the VLAN
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* information to be present in
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* the QDIO header */
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if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
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hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
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hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
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}
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}
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static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
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struct qeth_reply *reply, unsigned long data)
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{
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struct qeth_ipa_cmd *cmd;
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QETH_CARD_TEXT(card, 2, "L2sdvcb");
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cmd = (struct qeth_ipa_cmd *) data;
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if (cmd->hdr.return_code) {
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QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
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"Continuing\n", cmd->data.setdelvlan.vlan_id,
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QETH_CARD_IFNAME(card), cmd->hdr.return_code);
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QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
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QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
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}
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return 0;
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}
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static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
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enum qeth_ipa_cmds ipacmd)
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{
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struct qeth_ipa_cmd *cmd;
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struct qeth_cmd_buffer *iob;
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QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
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iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
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if (!iob)
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return -ENOMEM;
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cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
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cmd->data.setdelvlan.vlan_id = i;
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return qeth_send_ipa_cmd(card, iob,
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qeth_l2_send_setdelvlan_cb, NULL);
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}
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static void qeth_l2_process_vlans(struct qeth_card *card)
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{
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struct qeth_vlan_vid *id;
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QETH_CARD_TEXT(card, 3, "L2prcvln");
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spin_lock_bh(&card->vlanlock);
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list_for_each_entry(id, &card->vid_list, list) {
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qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
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}
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spin_unlock_bh(&card->vlanlock);
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}
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static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
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__be16 proto, u16 vid)
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{
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struct qeth_card *card = dev->ml_priv;
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struct qeth_vlan_vid *id;
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int rc;
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QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
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if (!vid)
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return 0;
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if (card->info.type == QETH_CARD_TYPE_OSM) {
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QETH_CARD_TEXT(card, 3, "aidOSM");
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return 0;
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}
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if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
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QETH_CARD_TEXT(card, 3, "aidREC");
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return 0;
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}
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id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
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if (id) {
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id->vid = vid;
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rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
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if (rc) {
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kfree(id);
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return rc;
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}
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spin_lock_bh(&card->vlanlock);
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list_add_tail(&id->list, &card->vid_list);
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spin_unlock_bh(&card->vlanlock);
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} else {
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return -ENOMEM;
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}
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return 0;
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}
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static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
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__be16 proto, u16 vid)
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{
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struct qeth_vlan_vid *id, *tmpid = NULL;
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struct qeth_card *card = dev->ml_priv;
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int rc = 0;
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QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
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if (card->info.type == QETH_CARD_TYPE_OSM) {
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QETH_CARD_TEXT(card, 3, "kidOSM");
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return 0;
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}
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if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
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QETH_CARD_TEXT(card, 3, "kidREC");
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return 0;
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}
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spin_lock_bh(&card->vlanlock);
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list_for_each_entry(id, &card->vid_list, list) {
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if (id->vid == vid) {
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list_del(&id->list);
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tmpid = id;
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break;
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}
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}
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spin_unlock_bh(&card->vlanlock);
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if (tmpid) {
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rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
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kfree(tmpid);
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}
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qeth_l2_set_rx_mode(card->dev);
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return rc;
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}
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static netdev_features_t qeth_l2_fix_features(struct net_device *dev,
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netdev_features_t features)
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{
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struct qeth_card *card = dev->ml_priv;
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QETH_DBF_TEXT(SETUP, 2, "fixfeat");
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if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
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features &= ~NETIF_F_IP_CSUM;
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if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
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features &= ~NETIF_F_RXCSUM;
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QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
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return features;
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}
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static int qeth_l2_set_features(struct net_device *dev,
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netdev_features_t features)
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{
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struct qeth_card *card = dev->ml_priv;
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netdev_features_t changed = dev->features ^ features;
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QETH_DBF_TEXT(SETUP, 2, "setfeat");
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QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
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if (card->state == CARD_STATE_DOWN ||
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card->state == CARD_STATE_RECOVER)
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return 0;
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if (!(changed & NETIF_F_RXCSUM))
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return 0;
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return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
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}
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static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
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{
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QETH_DBF_TEXT(SETUP , 2, "stopcard");
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QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
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qeth_set_allowed_threads(card, 0, 1);
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if (card->read.state == CH_STATE_UP &&
|
|
card->write.state == CH_STATE_UP &&
|
|
(card->state == CARD_STATE_UP)) {
|
|
if (recovery_mode &&
|
|
card->info.type != QETH_CARD_TYPE_OSN) {
|
|
qeth_l2_stop(card->dev);
|
|
} else {
|
|
rtnl_lock();
|
|
dev_close(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
|
|
card->state = CARD_STATE_SOFTSETUP;
|
|
}
|
|
if (card->state == CARD_STATE_SOFTSETUP) {
|
|
qeth_l2_del_all_macs(card, 0);
|
|
qeth_clear_ipacmd_list(card);
|
|
card->state = CARD_STATE_HARDSETUP;
|
|
}
|
|
if (card->state == CARD_STATE_HARDSETUP) {
|
|
qeth_qdio_clear_card(card, 0);
|
|
qeth_clear_qdio_buffers(card);
|
|
qeth_clear_working_pool_list(card);
|
|
card->state = CARD_STATE_DOWN;
|
|
}
|
|
if (card->state == CARD_STATE_DOWN) {
|
|
qeth_clear_cmd_buffers(&card->read);
|
|
qeth_clear_cmd_buffers(&card->write);
|
|
}
|
|
}
|
|
|
|
static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
|
|
int budget, int *done)
|
|
{
|
|
int work_done = 0;
|
|
struct sk_buff *skb;
|
|
struct qeth_hdr *hdr;
|
|
unsigned int len;
|
|
|
|
*done = 0;
|
|
WARN_ON_ONCE(!budget);
|
|
while (budget) {
|
|
skb = qeth_core_get_next_skb(card,
|
|
&card->qdio.in_q->bufs[card->rx.b_index],
|
|
&card->rx.b_element, &card->rx.e_offset, &hdr);
|
|
if (!skb) {
|
|
*done = 1;
|
|
break;
|
|
}
|
|
skb->dev = card->dev;
|
|
switch (hdr->hdr.l2.id) {
|
|
case QETH_HEADER_TYPE_LAYER2:
|
|
skb->pkt_type = PACKET_HOST;
|
|
skb->protocol = eth_type_trans(skb, skb->dev);
|
|
if ((card->dev->features & NETIF_F_RXCSUM)
|
|
&& ((hdr->hdr.l2.flags[1] &
|
|
(QETH_HDR_EXT_CSUM_HDR_REQ |
|
|
QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
|
|
(QETH_HDR_EXT_CSUM_HDR_REQ |
|
|
QETH_HDR_EXT_CSUM_TRANSP_REQ)))
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
if (skb->protocol == htons(ETH_P_802_2))
|
|
*((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
|
|
len = skb->len;
|
|
napi_gro_receive(&card->napi, skb);
|
|
break;
|
|
case QETH_HEADER_TYPE_OSN:
|
|
if (card->info.type == QETH_CARD_TYPE_OSN) {
|
|
skb_push(skb, sizeof(struct qeth_hdr));
|
|
skb_copy_to_linear_data(skb, hdr,
|
|
sizeof(struct qeth_hdr));
|
|
len = skb->len;
|
|
card->osn_info.data_cb(skb);
|
|
break;
|
|
}
|
|
/* else unknown */
|
|
default:
|
|
dev_kfree_skb_any(skb);
|
|
QETH_CARD_TEXT(card, 3, "inbunkno");
|
|
QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
|
|
continue;
|
|
}
|
|
work_done++;
|
|
budget--;
|
|
card->stats.rx_packets++;
|
|
card->stats.rx_bytes += len;
|
|
}
|
|
return work_done;
|
|
}
|
|
|
|
static int qeth_l2_poll(struct napi_struct *napi, int budget)
|
|
{
|
|
struct qeth_card *card = container_of(napi, struct qeth_card, napi);
|
|
int work_done = 0;
|
|
struct qeth_qdio_buffer *buffer;
|
|
int done;
|
|
int new_budget = budget;
|
|
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.inbound_cnt++;
|
|
card->perf_stats.inbound_start_time = qeth_get_micros();
|
|
}
|
|
|
|
while (1) {
|
|
if (!card->rx.b_count) {
|
|
card->rx.qdio_err = 0;
|
|
card->rx.b_count = qdio_get_next_buffers(
|
|
card->data.ccwdev, 0, &card->rx.b_index,
|
|
&card->rx.qdio_err);
|
|
if (card->rx.b_count <= 0) {
|
|
card->rx.b_count = 0;
|
|
break;
|
|
}
|
|
card->rx.b_element =
|
|
&card->qdio.in_q->bufs[card->rx.b_index]
|
|
.buffer->element[0];
|
|
card->rx.e_offset = 0;
|
|
}
|
|
|
|
while (card->rx.b_count) {
|
|
buffer = &card->qdio.in_q->bufs[card->rx.b_index];
|
|
if (!(card->rx.qdio_err &&
|
|
qeth_check_qdio_errors(card, buffer->buffer,
|
|
card->rx.qdio_err, "qinerr")))
|
|
work_done += qeth_l2_process_inbound_buffer(
|
|
card, new_budget, &done);
|
|
else
|
|
done = 1;
|
|
|
|
if (done) {
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.bufs_rec++;
|
|
qeth_put_buffer_pool_entry(card,
|
|
buffer->pool_entry);
|
|
qeth_queue_input_buffer(card, card->rx.b_index);
|
|
card->rx.b_count--;
|
|
if (card->rx.b_count) {
|
|
card->rx.b_index =
|
|
(card->rx.b_index + 1) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
card->rx.b_element =
|
|
&card->qdio.in_q
|
|
->bufs[card->rx.b_index]
|
|
.buffer->element[0];
|
|
card->rx.e_offset = 0;
|
|
}
|
|
}
|
|
|
|
if (work_done >= budget)
|
|
goto out;
|
|
else
|
|
new_budget = budget - work_done;
|
|
}
|
|
}
|
|
|
|
napi_complete(napi);
|
|
if (qdio_start_irq(card->data.ccwdev, 0))
|
|
napi_schedule(&card->napi);
|
|
out:
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.inbound_time += qeth_get_micros() -
|
|
card->perf_stats.inbound_start_time;
|
|
return work_done;
|
|
}
|
|
|
|
static int qeth_l2_send_setdelmac(struct qeth_card *card, __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_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
|
|
memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
|
|
return qeth_send_ipa_cmd(card, iob, NULL, NULL);
|
|
}
|
|
|
|
static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 2, "L2Setmac");
|
|
rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
|
|
IPA_CMD_SETVMAC));
|
|
if (rc == 0) {
|
|
card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
|
|
memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
|
|
dev_info(&card->gdev->dev,
|
|
"MAC address %pM successfully registered on device %s\n",
|
|
card->dev->dev_addr, card->dev->name);
|
|
} else {
|
|
card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
|
|
switch (rc) {
|
|
case -EEXIST:
|
|
dev_warn(&card->gdev->dev,
|
|
"MAC address %pM already exists\n", mac);
|
|
break;
|
|
case -EPERM:
|
|
dev_warn(&card->gdev->dev,
|
|
"MAC address %pM is not authorized\n", mac);
|
|
break;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 2, "L2Delmac");
|
|
if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
|
|
return 0;
|
|
rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
|
|
IPA_CMD_DELVMAC));
|
|
if (rc == 0)
|
|
card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l2_request_initial_mac(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
char vendor_pre[] = {0x02, 0x00, 0x00};
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "doL2init");
|
|
QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
|
|
|
|
if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
|
|
rc = qeth_query_setadapterparms(card);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "could not query adapter "
|
|
"parameters on device %s: x%x\n",
|
|
CARD_BUS_ID(card), rc);
|
|
}
|
|
}
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_IQD ||
|
|
card->info.type == QETH_CARD_TYPE_OSM ||
|
|
card->info.type == QETH_CARD_TYPE_OSX ||
|
|
card->info.guestlan) {
|
|
rc = qeth_setadpparms_change_macaddr(card);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
|
|
"device %s: x%x\n", CARD_BUS_ID(card), rc);
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
|
|
return rc;
|
|
}
|
|
QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
|
|
} else {
|
|
eth_random_addr(card->dev->dev_addr);
|
|
memcpy(card->dev->dev_addr, vendor_pre, 3);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
|
|
{
|
|
struct sockaddr *addr = p;
|
|
struct qeth_card *card = dev->ml_priv;
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "setmac");
|
|
|
|
if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
|
|
QETH_CARD_TEXT(card, 3, "setmcINV");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_OSN ||
|
|
card->info.type == QETH_CARD_TYPE_OSM ||
|
|
card->info.type == QETH_CARD_TYPE_OSX) {
|
|
QETH_CARD_TEXT(card, 3, "setmcTYP");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
|
|
if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
|
|
QETH_CARD_TEXT(card, 3, "setmcREC");
|
|
return -ERESTARTSYS;
|
|
}
|
|
rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
|
|
if (!rc || (rc == -ENOENT))
|
|
rc = qeth_l2_send_setmac(card, addr->sa_data);
|
|
return rc ? -EINVAL : 0;
|
|
}
|
|
|
|
static void qeth_promisc_to_bridge(struct qeth_card *card)
|
|
{
|
|
struct net_device *dev = card->dev;
|
|
enum qeth_ipa_promisc_modes promisc_mode;
|
|
int role;
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "pmisc2br");
|
|
|
|
if (!card->options.sbp.reflect_promisc)
|
|
return;
|
|
promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
|
|
: SET_PROMISC_MODE_OFF;
|
|
if (promisc_mode == card->info.promisc_mode)
|
|
return;
|
|
|
|
if (promisc_mode == SET_PROMISC_MODE_ON) {
|
|
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_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
|
|
(promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
|
|
if (!rc) {
|
|
card->options.sbp.role = role;
|
|
card->info.promisc_mode = promisc_mode;
|
|
}
|
|
|
|
}
|
|
/* 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, u8 is_uc)
|
|
{
|
|
struct qeth_mac *mac;
|
|
|
|
hash_for_each_possible(card->mac_htable, mac, hnode,
|
|
qeth_l2_mac_hash(ha->addr)) {
|
|
if (is_uc == mac->is_uc &&
|
|
!memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
|
|
mac->disp_flag = QETH_DISP_MAC_DO_NOTHING;
|
|
return;
|
|
}
|
|
}
|
|
|
|
mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
|
|
|
|
if (!mac)
|
|
return;
|
|
|
|
memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
|
|
mac->is_uc = is_uc;
|
|
mac->disp_flag = QETH_DISP_MAC_ADD;
|
|
|
|
hash_add(card->mac_htable, &mac->hnode,
|
|
qeth_l2_mac_hash(mac->mac_addr));
|
|
|
|
}
|
|
|
|
static void qeth_l2_set_rx_mode(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct netdev_hw_addr *ha;
|
|
struct qeth_mac *mac;
|
|
struct hlist_node *tmp;
|
|
int i;
|
|
int rc;
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_OSN)
|
|
return;
|
|
|
|
QETH_CARD_TEXT(card, 3, "setmulti");
|
|
if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
|
|
(card->state != CARD_STATE_UP))
|
|
return;
|
|
|
|
spin_lock_bh(&card->mclock);
|
|
|
|
netdev_for_each_mc_addr(ha, dev)
|
|
qeth_l2_add_mac(card, ha, 0);
|
|
|
|
netdev_for_each_uc_addr(ha, dev)
|
|
qeth_l2_add_mac(card, ha, 1);
|
|
|
|
hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
|
|
if (mac->disp_flag == QETH_DISP_MAC_DELETE) {
|
|
if (!mac->is_uc)
|
|
rc = qeth_l2_send_delgroupmac(card,
|
|
mac->mac_addr);
|
|
else {
|
|
rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
|
|
IPA_CMD_DELVMAC);
|
|
}
|
|
|
|
hash_del(&mac->hnode);
|
|
kfree(mac);
|
|
|
|
} else if (mac->disp_flag == QETH_DISP_MAC_ADD) {
|
|
rc = qeth_l2_write_mac(card, mac);
|
|
if (rc) {
|
|
hash_del(&mac->hnode);
|
|
kfree(mac);
|
|
} else
|
|
mac->disp_flag = QETH_DISP_MAC_DELETE;
|
|
} else
|
|
mac->disp_flag = QETH_DISP_MAC_DELETE;
|
|
}
|
|
|
|
spin_unlock_bh(&card->mclock);
|
|
|
|
if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
|
|
qeth_setadp_promisc_mode(card);
|
|
else
|
|
qeth_promisc_to_bridge(card);
|
|
}
|
|
|
|
static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
int rc;
|
|
struct qeth_hdr *hdr = NULL;
|
|
int elements = 0;
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct sk_buff *new_skb = skb;
|
|
int cast_type = qeth_l2_get_cast_type(card, skb);
|
|
struct qeth_qdio_out_q *queue;
|
|
int tx_bytes = skb->len;
|
|
int data_offset = -1;
|
|
int elements_needed = 0;
|
|
int hd_len = 0;
|
|
|
|
if (card->qdio.do_prio_queueing || (cast_type &&
|
|
card->info.is_multicast_different))
|
|
queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
|
|
qeth_get_ip_version(skb), cast_type)];
|
|
else
|
|
queue = card->qdio.out_qs[card->qdio.default_out_queue];
|
|
|
|
if ((card->state != CARD_STATE_UP) || !card->lan_online) {
|
|
card->stats.tx_carrier_errors++;
|
|
goto tx_drop;
|
|
}
|
|
|
|
if ((card->info.type == QETH_CARD_TYPE_OSN) &&
|
|
(skb->protocol == htons(ETH_P_IPV6)))
|
|
goto tx_drop;
|
|
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.outbound_cnt++;
|
|
card->perf_stats.outbound_start_time = qeth_get_micros();
|
|
}
|
|
netif_stop_queue(dev);
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_OSN)
|
|
hdr = (struct qeth_hdr *)skb->data;
|
|
else {
|
|
if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
new_skb = skb;
|
|
data_offset = ETH_HLEN;
|
|
hd_len = ETH_HLEN;
|
|
hdr = kmem_cache_alloc(qeth_core_header_cache,
|
|
GFP_ATOMIC);
|
|
if (!hdr)
|
|
goto tx_drop;
|
|
elements_needed++;
|
|
skb_reset_mac_header(new_skb);
|
|
qeth_l2_fill_header(card, hdr, new_skb, cast_type);
|
|
hdr->hdr.l2.pkt_length = new_skb->len;
|
|
memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
|
|
skb_mac_header(new_skb), ETH_HLEN);
|
|
} else {
|
|
/* create a clone with writeable headroom */
|
|
new_skb = skb_realloc_headroom(skb,
|
|
sizeof(struct qeth_hdr));
|
|
if (!new_skb)
|
|
goto tx_drop;
|
|
hdr = (struct qeth_hdr *)skb_push(new_skb,
|
|
sizeof(struct qeth_hdr));
|
|
skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
|
|
qeth_l2_fill_header(card, hdr, new_skb, cast_type);
|
|
if (new_skb->ip_summed == CHECKSUM_PARTIAL)
|
|
qeth_l2_hdr_csum(card, hdr, new_skb);
|
|
}
|
|
}
|
|
|
|
elements = qeth_get_elements_no(card, new_skb, elements_needed);
|
|
if (!elements) {
|
|
if (data_offset >= 0)
|
|
kmem_cache_free(qeth_core_header_cache, hdr);
|
|
goto tx_drop;
|
|
}
|
|
|
|
if (card->info.type != QETH_CARD_TYPE_IQD) {
|
|
if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
|
|
sizeof(struct qeth_hdr_layer2)))
|
|
goto tx_drop;
|
|
rc = qeth_do_send_packet(card, queue, new_skb, hdr,
|
|
elements);
|
|
} else
|
|
rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
|
|
elements, data_offset, hd_len);
|
|
if (!rc) {
|
|
card->stats.tx_packets++;
|
|
card->stats.tx_bytes += tx_bytes;
|
|
if (new_skb != skb)
|
|
dev_kfree_skb_any(skb);
|
|
rc = NETDEV_TX_OK;
|
|
} else {
|
|
if (data_offset >= 0)
|
|
kmem_cache_free(qeth_core_header_cache, hdr);
|
|
|
|
if (rc == -EBUSY) {
|
|
if (new_skb != skb)
|
|
dev_kfree_skb_any(new_skb);
|
|
return NETDEV_TX_BUSY;
|
|
} else
|
|
goto tx_drop;
|
|
}
|
|
|
|
netif_wake_queue(dev);
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.outbound_time += qeth_get_micros() -
|
|
card->perf_stats.outbound_start_time;
|
|
return rc;
|
|
|
|
tx_drop:
|
|
card->stats.tx_dropped++;
|
|
card->stats.tx_errors++;
|
|
if ((new_skb != skb) && new_skb)
|
|
dev_kfree_skb_any(new_skb);
|
|
dev_kfree_skb_any(skb);
|
|
netif_wake_queue(dev);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static int __qeth_l2_open(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 4, "qethopen");
|
|
if (card->state == CARD_STATE_UP)
|
|
return rc;
|
|
if (card->state != CARD_STATE_SOFTSETUP)
|
|
return -ENODEV;
|
|
|
|
if ((card->info.type != QETH_CARD_TYPE_OSN) &&
|
|
(!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
|
|
QETH_CARD_TEXT(card, 4, "nomacadr");
|
|
return -EPERM;
|
|
}
|
|
card->data.state = CH_STATE_UP;
|
|
card->state = CARD_STATE_UP;
|
|
netif_start_queue(dev);
|
|
|
|
if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
|
|
napi_enable(&card->napi);
|
|
napi_schedule(&card->napi);
|
|
} else
|
|
rc = -EIO;
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l2_open(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 5, "qethope_");
|
|
if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
|
|
QETH_CARD_TEXT(card, 3, "openREC");
|
|
return -ERESTARTSYS;
|
|
}
|
|
return __qeth_l2_open(dev);
|
|
}
|
|
|
|
static int qeth_l2_stop(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 4, "qethstop");
|
|
netif_tx_disable(dev);
|
|
if (card->state == CARD_STATE_UP) {
|
|
card->state = CARD_STATE_SOFTSETUP;
|
|
napi_disable(&card->napi);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
|
|
qeth_l2_create_device_attributes(&gdev->dev);
|
|
INIT_LIST_HEAD(&card->vid_list);
|
|
hash_init(card->mac_htable);
|
|
card->options.layer2 = 1;
|
|
card->info.hwtrap = 0;
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
|
|
|
|
qeth_l2_remove_device_attributes(&cgdev->dev);
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
|
|
|
|
if (cgdev->state == CCWGROUP_ONLINE)
|
|
qeth_l2_set_offline(cgdev);
|
|
|
|
if (card->dev) {
|
|
unregister_netdev(card->dev);
|
|
card->dev = NULL;
|
|
}
|
|
return;
|
|
}
|
|
|
|
static const struct ethtool_ops qeth_l2_ethtool_ops = {
|
|
.get_link = ethtool_op_get_link,
|
|
.get_strings = qeth_core_get_strings,
|
|
.get_ethtool_stats = qeth_core_get_ethtool_stats,
|
|
.get_sset_count = qeth_core_get_sset_count,
|
|
.get_drvinfo = qeth_core_get_drvinfo,
|
|
.get_settings = qeth_core_ethtool_get_settings,
|
|
};
|
|
|
|
static const struct ethtool_ops qeth_l2_osn_ops = {
|
|
.get_strings = qeth_core_get_strings,
|
|
.get_ethtool_stats = qeth_core_get_ethtool_stats,
|
|
.get_sset_count = qeth_core_get_sset_count,
|
|
.get_drvinfo = qeth_core_get_drvinfo,
|
|
};
|
|
|
|
static const struct net_device_ops qeth_l2_netdev_ops = {
|
|
.ndo_open = qeth_l2_open,
|
|
.ndo_stop = qeth_l2_stop,
|
|
.ndo_get_stats = qeth_get_stats,
|
|
.ndo_start_xmit = qeth_l2_hard_start_xmit,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_rx_mode = qeth_l2_set_rx_mode,
|
|
.ndo_do_ioctl = qeth_l2_do_ioctl,
|
|
.ndo_set_mac_address = qeth_l2_set_mac_address,
|
|
.ndo_change_mtu = qeth_change_mtu,
|
|
.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_l2_fix_features,
|
|
.ndo_set_features = qeth_l2_set_features
|
|
};
|
|
|
|
static int qeth_l2_setup_netdev(struct qeth_card *card)
|
|
{
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_IQD:
|
|
card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
|
|
ether_setup);
|
|
break;
|
|
case QETH_CARD_TYPE_OSN:
|
|
card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
|
|
ether_setup);
|
|
card->dev->flags |= IFF_NOARP;
|
|
break;
|
|
default:
|
|
card->dev = alloc_etherdev(0);
|
|
}
|
|
|
|
if (!card->dev)
|
|
return -ENODEV;
|
|
|
|
card->dev->ml_priv = card;
|
|
card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
|
|
card->dev->mtu = card->info.initial_mtu;
|
|
card->dev->netdev_ops = &qeth_l2_netdev_ops;
|
|
card->dev->ethtool_ops =
|
|
(card->info.type != QETH_CARD_TYPE_OSN) ?
|
|
&qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
|
|
card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
|
|
if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
|
|
card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
|
|
/* Turn on RX offloading per default */
|
|
card->dev->features |= NETIF_F_RXCSUM;
|
|
}
|
|
card->info.broadcast_capable = 1;
|
|
qeth_l2_request_initial_mac(card);
|
|
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
|
|
netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
|
|
return register_netdev(card->dev);
|
|
}
|
|
|
|
static int qeth_l2_start_ipassists(struct qeth_card *card)
|
|
{
|
|
/* configure isolation level */
|
|
if (qeth_set_access_ctrl_online(card, 0))
|
|
return -ENODEV;
|
|
if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
|
|
qeth_set_rx_csum(card, 1);
|
|
qeth_start_ipa_tx_checksum(card);
|
|
return 0;
|
|
}
|
|
|
|
static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
int rc = 0;
|
|
enum qeth_card_states recover_flag;
|
|
|
|
mutex_lock(&card->discipline_mutex);
|
|
mutex_lock(&card->conf_mutex);
|
|
QETH_DBF_TEXT(SETUP, 2, "setonlin");
|
|
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
|
|
|
|
recover_flag = card->state;
|
|
rc = qeth_core_hardsetup_card(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
}
|
|
qeth_bridgeport_query_support(card);
|
|
if (card->options.sbp.supported_funcs)
|
|
dev_info(&card->gdev->dev,
|
|
"The device represents a Bridge Capable Port\n");
|
|
qeth_trace_features(card);
|
|
|
|
if (!card->dev && qeth_l2_setup_netdev(card)) {
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
}
|
|
|
|
if (card->info.type != QETH_CARD_TYPE_OSN)
|
|
qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
|
|
|
|
if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
|
|
if (card->info.hwtrap &&
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
|
|
card->info.hwtrap = 0;
|
|
} else
|
|
card->info.hwtrap = 0;
|
|
|
|
qeth_l2_setup_bridgeport_attrs(card);
|
|
|
|
card->state = CARD_STATE_HARDSETUP;
|
|
memset(&card->rx, 0, sizeof(struct qeth_rx));
|
|
qeth_print_status_message(card);
|
|
|
|
/* softsetup */
|
|
QETH_DBF_TEXT(SETUP, 2, "softsetp");
|
|
|
|
rc = qeth_send_startlan(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
if (rc == 0xe080) {
|
|
dev_warn(&card->gdev->dev,
|
|
"The LAN is offline\n");
|
|
card->lan_online = 0;
|
|
goto contin;
|
|
}
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
} else
|
|
card->lan_online = 1;
|
|
|
|
contin:
|
|
if ((card->info.type == QETH_CARD_TYPE_OSD) ||
|
|
(card->info.type == QETH_CARD_TYPE_OSX)) {
|
|
if (qeth_l2_start_ipassists(card))
|
|
goto out_remove;
|
|
}
|
|
|
|
if (card->info.type != QETH_CARD_TYPE_OSN &&
|
|
card->info.type != QETH_CARD_TYPE_OSM)
|
|
qeth_l2_process_vlans(card);
|
|
|
|
netif_tx_disable(card->dev);
|
|
|
|
rc = qeth_init_qdio_queues(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
}
|
|
card->state = CARD_STATE_SOFTSETUP;
|
|
if (card->lan_online)
|
|
netif_carrier_on(card->dev);
|
|
else
|
|
netif_carrier_off(card->dev);
|
|
|
|
qeth_set_allowed_threads(card, 0xffffffff, 0);
|
|
if (recover_flag == CARD_STATE_RECOVER) {
|
|
if (recovery_mode &&
|
|
card->info.type != QETH_CARD_TYPE_OSN) {
|
|
__qeth_l2_open(card->dev);
|
|
} else {
|
|
rtnl_lock();
|
|
dev_open(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
/* this also sets saved unicast addresses */
|
|
qeth_l2_set_rx_mode(card->dev);
|
|
}
|
|
/* let user_space know that device is online */
|
|
kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
|
|
mutex_unlock(&card->conf_mutex);
|
|
mutex_unlock(&card->discipline_mutex);
|
|
return 0;
|
|
|
|
out_remove:
|
|
qeth_l2_stop_card(card, 0);
|
|
ccw_device_set_offline(CARD_DDEV(card));
|
|
ccw_device_set_offline(CARD_WDEV(card));
|
|
ccw_device_set_offline(CARD_RDEV(card));
|
|
qdio_free(CARD_DDEV(card));
|
|
if (recover_flag == CARD_STATE_RECOVER)
|
|
card->state = CARD_STATE_RECOVER;
|
|
else
|
|
card->state = CARD_STATE_DOWN;
|
|
mutex_unlock(&card->conf_mutex);
|
|
mutex_unlock(&card->discipline_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l2_set_online(struct ccwgroup_device *gdev)
|
|
{
|
|
return __qeth_l2_set_online(gdev, 0);
|
|
}
|
|
|
|
static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
|
|
int recovery_mode)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
|
|
int rc = 0, rc2 = 0, rc3 = 0;
|
|
enum qeth_card_states recover_flag;
|
|
|
|
mutex_lock(&card->discipline_mutex);
|
|
mutex_lock(&card->conf_mutex);
|
|
QETH_DBF_TEXT(SETUP, 3, "setoffl");
|
|
QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
|
|
|
|
if (card->dev && netif_carrier_ok(card->dev))
|
|
netif_carrier_off(card->dev);
|
|
recover_flag = card->state;
|
|
if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
|
|
card->info.hwtrap = 1;
|
|
}
|
|
qeth_l2_stop_card(card, recovery_mode);
|
|
rc = ccw_device_set_offline(CARD_DDEV(card));
|
|
rc2 = ccw_device_set_offline(CARD_WDEV(card));
|
|
rc3 = ccw_device_set_offline(CARD_RDEV(card));
|
|
if (!rc)
|
|
rc = (rc2) ? rc2 : rc3;
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
qdio_free(CARD_DDEV(card));
|
|
if (recover_flag == CARD_STATE_UP)
|
|
card->state = CARD_STATE_RECOVER;
|
|
/* let user_space know that device is offline */
|
|
kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
|
|
mutex_unlock(&card->conf_mutex);
|
|
mutex_unlock(&card->discipline_mutex);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
|
|
{
|
|
return __qeth_l2_set_offline(cgdev, 0);
|
|
}
|
|
|
|
static int qeth_l2_recover(void *ptr)
|
|
{
|
|
struct qeth_card *card;
|
|
int rc = 0;
|
|
|
|
card = (struct qeth_card *) ptr;
|
|
QETH_CARD_TEXT(card, 2, "recover1");
|
|
if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
|
|
return 0;
|
|
QETH_CARD_TEXT(card, 2, "recover2");
|
|
dev_warn(&card->gdev->dev,
|
|
"A recovery process has been started for the device\n");
|
|
qeth_set_recovery_task(card);
|
|
__qeth_l2_set_offline(card->gdev, 1);
|
|
rc = __qeth_l2_set_online(card->gdev, 1);
|
|
if (!rc)
|
|
dev_info(&card->gdev->dev,
|
|
"Device successfully recovered!\n");
|
|
else {
|
|
qeth_close_dev(card);
|
|
dev_warn(&card->gdev->dev, "The qeth device driver "
|
|
"failed to recover an error on the device\n");
|
|
}
|
|
qeth_clear_recovery_task(card);
|
|
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
|
|
qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
|
|
return 0;
|
|
}
|
|
|
|
static int __init qeth_l2_init(void)
|
|
{
|
|
pr_info("register layer 2 discipline\n");
|
|
return 0;
|
|
}
|
|
|
|
static void __exit qeth_l2_exit(void)
|
|
{
|
|
pr_info("unregister layer 2 discipline\n");
|
|
}
|
|
|
|
static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
|
|
qeth_qdio_clear_card(card, 0);
|
|
qeth_clear_qdio_buffers(card);
|
|
qdio_free(CARD_DDEV(card));
|
|
}
|
|
|
|
static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
|
|
if (card->dev)
|
|
netif_device_detach(card->dev);
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
|
|
if (gdev->state == CCWGROUP_OFFLINE)
|
|
return 0;
|
|
if (card->state == CARD_STATE_UP) {
|
|
if (card->info.hwtrap)
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
|
|
__qeth_l2_set_offline(card->gdev, 1);
|
|
} else
|
|
__qeth_l2_set_offline(card->gdev, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
int rc = 0;
|
|
|
|
if (gdev->state == CCWGROUP_OFFLINE)
|
|
goto out;
|
|
|
|
if (card->state == CARD_STATE_RECOVER) {
|
|
rc = __qeth_l2_set_online(card->gdev, 1);
|
|
if (rc) {
|
|
rtnl_lock();
|
|
dev_close(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
} else
|
|
rc = __qeth_l2_set_online(card->gdev, 0);
|
|
out:
|
|
qeth_set_allowed_threads(card, 0xffffffff, 0);
|
|
if (card->dev)
|
|
netif_device_attach(card->dev);
|
|
if (rc)
|
|
dev_warn(&card->gdev->dev, "The qeth device driver "
|
|
"failed to recover an error on the device\n");
|
|
return rc;
|
|
}
|
|
|
|
/* Returns zero if the command is successfully "consumed" */
|
|
static int qeth_l2_control_event(struct qeth_card *card,
|
|
struct qeth_ipa_cmd *cmd)
|
|
{
|
|
switch (cmd->hdr.command) {
|
|
case IPA_CMD_SETBRIDGEPORT_OSA:
|
|
case IPA_CMD_SETBRIDGEPORT_IQD:
|
|
if (cmd->data.sbp.hdr.command_code ==
|
|
IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
|
|
qeth_bridge_state_change(card, cmd);
|
|
return 0;
|
|
} else
|
|
return 1;
|
|
case IPA_CMD_ADDRESS_CHANGE_NOTIF:
|
|
qeth_bridge_host_event(card, cmd);
|
|
return 0;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
struct qeth_discipline qeth_l2_discipline = {
|
|
.start_poll = qeth_qdio_start_poll,
|
|
.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
|
|
.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
|
|
.recover = qeth_l2_recover,
|
|
.setup = qeth_l2_probe_device,
|
|
.remove = qeth_l2_remove_device,
|
|
.set_online = qeth_l2_set_online,
|
|
.set_offline = qeth_l2_set_offline,
|
|
.shutdown = qeth_l2_shutdown,
|
|
.freeze = qeth_l2_pm_suspend,
|
|
.thaw = qeth_l2_pm_resume,
|
|
.restore = qeth_l2_pm_resume,
|
|
.control_event_handler = qeth_l2_control_event,
|
|
};
|
|
EXPORT_SYMBOL_GPL(qeth_l2_discipline);
|
|
|
|
static int qeth_osn_send_control_data(struct qeth_card *card, int len,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 5, "osndctrd");
|
|
|
|
wait_event(card->wait_q,
|
|
atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
|
|
qeth_prepare_control_data(card, len, iob);
|
|
QETH_CARD_TEXT(card, 6, "osnoirqp");
|
|
spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
|
|
rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
|
|
(addr_t) iob, 0, 0);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
|
|
"ccw_device_start rc = %i\n", rc);
|
|
QETH_CARD_TEXT_(card, 2, " err%d", rc);
|
|
qeth_release_buffer(iob->channel, iob);
|
|
atomic_set(&card->write.irq_pending, 0);
|
|
wake_up(&card->wait_q);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
|
|
struct qeth_cmd_buffer *iob, int data_len)
|
|
{
|
|
u16 s1, s2;
|
|
|
|
QETH_CARD_TEXT(card, 4, "osndipa");
|
|
|
|
qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
|
|
s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
|
|
s2 = (u16)data_len;
|
|
memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
|
|
memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
|
|
memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
|
|
memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
|
|
return qeth_osn_send_control_data(card, s1, iob);
|
|
}
|
|
|
|
int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_card *card;
|
|
int rc;
|
|
|
|
if (!dev)
|
|
return -ENODEV;
|
|
card = dev->ml_priv;
|
|
if (!card)
|
|
return -ENODEV;
|
|
QETH_CARD_TEXT(card, 2, "osnsdmc");
|
|
if (!qeth_card_hw_is_reachable(card))
|
|
return -ENODEV;
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
|
|
rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL(qeth_osn_assist);
|
|
|
|
int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
|
|
int (*assist_cb)(struct net_device *, void *),
|
|
int (*data_cb)(struct sk_buff *))
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
*dev = qeth_l2_netdev_by_devno(read_dev_no);
|
|
if (*dev == NULL)
|
|
return -ENODEV;
|
|
card = (*dev)->ml_priv;
|
|
if (!card)
|
|
return -ENODEV;
|
|
QETH_CARD_TEXT(card, 2, "osnreg");
|
|
if ((assist_cb == NULL) || (data_cb == NULL))
|
|
return -EINVAL;
|
|
card->osn_info.assist_cb = assist_cb;
|
|
card->osn_info.data_cb = data_cb;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(qeth_osn_register);
|
|
|
|
void qeth_osn_deregister(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
if (!dev)
|
|
return;
|
|
card = dev->ml_priv;
|
|
if (!card)
|
|
return;
|
|
QETH_CARD_TEXT(card, 2, "osndereg");
|
|
card->osn_info.assist_cb = NULL;
|
|
card->osn_info.data_cb = NULL;
|
|
return;
|
|
}
|
|
EXPORT_SYMBOL(qeth_osn_deregister);
|
|
|
|
/* 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;
|
|
struct qeth_sbp_state_change qports;
|
|
};
|
|
|
|
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);
|
|
/* We are only interested in the first entry - local port */
|
|
struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
|
|
char env_locrem[32];
|
|
char env_role[32];
|
|
char env_state[32];
|
|
char *env[] = {
|
|
env_locrem,
|
|
env_role,
|
|
env_state,
|
|
NULL
|
|
};
|
|
|
|
/* Role should not change by itself, but if it did, */
|
|
/* information from the hardware is authoritative. */
|
|
mutex_lock(&data->card->conf_mutex);
|
|
data->card->options.sbp.role = entry->role;
|
|
mutex_unlock(&data->card->conf_mutex);
|
|
|
|
snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
|
|
snprintf(env_role, sizeof(env_role), "ROLE=%s",
|
|
(entry->role == QETH_SBP_ROLE_NONE) ? "none" :
|
|
(entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
|
|
(entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
|
|
"<INVALID>");
|
|
snprintf(env_state, sizeof(env_state), "STATE=%s",
|
|
(entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
|
|
(entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
|
|
(entry->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_state_change *qports =
|
|
&cmd->data.sbp.data.state_change;
|
|
struct qeth_bridge_state_data *data;
|
|
int extrasize;
|
|
|
|
QETH_CARD_TEXT(card, 2, "brstchng");
|
|
if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
|
|
QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
|
|
return;
|
|
}
|
|
extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
|
|
data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
|
|
GFP_ATOMIC);
|
|
if (!data) {
|
|
QETH_CARD_TEXT(card, 2, "BPSalloc");
|
|
return;
|
|
}
|
|
INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
|
|
data->card = card;
|
|
memcpy(&data->qports, qports,
|
|
sizeof(struct qeth_sbp_state_change) + extrasize);
|
|
queue_work(qeth_wq, &data->worker);
|
|
}
|
|
|
|
struct qeth_bridge_host_data {
|
|
struct work_struct worker;
|
|
struct qeth_card *card;
|
|
struct qeth_ipacmd_addr_change hostevs;
|
|
};
|
|
|
|
static void qeth_bridge_host_event_worker(struct work_struct *work)
|
|
{
|
|
struct qeth_bridge_host_data *data =
|
|
container_of(work, struct qeth_bridge_host_data, worker);
|
|
int i;
|
|
|
|
if (data->hostevs.lost_event_mask) {
|
|
dev_info(&data->card->gdev->dev,
|
|
"Address notification from the Bridge Port stopped %s (%s)\n",
|
|
data->card->dev->name,
|
|
(data->hostevs.lost_event_mask == 0x01)
|
|
? "Overflow"
|
|
: (data->hostevs.lost_event_mask == 0x02)
|
|
? "Bridge port state change"
|
|
: "Unknown reason");
|
|
mutex_lock(&data->card->conf_mutex);
|
|
data->card->options.sbp.hostnotification = 0;
|
|
mutex_unlock(&data->card->conf_mutex);
|
|
qeth_bridge_emit_host_event(data->card, anev_abort,
|
|
0, NULL, NULL);
|
|
} else
|
|
for (i = 0; i < data->hostevs.num_entries; i++) {
|
|
struct qeth_ipacmd_addr_change_entry *entry =
|
|
&data->hostevs.entry[i];
|
|
qeth_bridge_emit_host_event(data->card,
|
|
anev_reg_unreg,
|
|
entry->change_code,
|
|
&entry->token, &entry->addr_lnid);
|
|
}
|
|
kfree(data);
|
|
}
|
|
|
|
static void qeth_bridge_host_event(struct qeth_card *card,
|
|
struct qeth_ipa_cmd *cmd)
|
|
{
|
|
struct qeth_ipacmd_addr_change *hostevs =
|
|
&cmd->data.addrchange;
|
|
struct qeth_bridge_host_data *data;
|
|
int extrasize;
|
|
|
|
QETH_CARD_TEXT(card, 2, "brhostev");
|
|
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, "BPHe%04x",
|
|
cmd->hdr.return_code);
|
|
return;
|
|
}
|
|
}
|
|
extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
|
|
hostevs->num_entries;
|
|
data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
|
|
GFP_ATOMIC);
|
|
if (!data) {
|
|
QETH_CARD_TEXT(card, 2, "BPHalloc");
|
|
return;
|
|
}
|
|
INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
|
|
data->card = card;
|
|
memcpy(&data->hostevs, hostevs,
|
|
sizeof(struct qeth_ipacmd_addr_change) + extrasize);
|
|
queue_work(qeth_wq, &data->worker);
|
|
}
|
|
|
|
/* SETBRIDGEPORT support; sending commands */
|
|
|
|
struct _qeth_sbp_cbctl {
|
|
u16 ipa_rc;
|
|
u16 cmd_rc;
|
|
union {
|
|
u32 supported;
|
|
struct {
|
|
enum qeth_sbp_roles *role;
|
|
enum qeth_sbp_states *state;
|
|
} qports;
|
|
} data;
|
|
};
|
|
|
|
/**
|
|
* qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
|
|
* @card: qeth_card structure pointer, for debug messages.
|
|
* @cbctl: state structure with hardware return codes.
|
|
* @setcmd: IPA command code
|
|
*
|
|
* Returns negative errno-compatible error indication or 0 on success.
|
|
*/
|
|
static int qeth_bridgeport_makerc(struct qeth_card *card,
|
|
struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
|
|
{
|
|
int rc;
|
|
int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
|
|
|
|
if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
|
|
(!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
|
|
switch (cbctl->cmd_rc) {
|
|
case 0x0000:
|
|
rc = 0;
|
|
break;
|
|
case 0x2B04:
|
|
case 0x0004:
|
|
rc = -EOPNOTSUPP;
|
|
break;
|
|
case 0x2B0C:
|
|
case 0x000C: /* Not configured as bridge Port */
|
|
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 0x2B14:
|
|
case 0x0014: /* Another device is 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 0x2B18:
|
|
case 0x0018: /* This device is currently Secondary */
|
|
rc = -EBUSY;
|
|
dev_err(&card->gdev->dev,
|
|
"The device is already a secondary Bridge Port\n");
|
|
break;
|
|
case 0x2B1C:
|
|
case 0x001C: /* Limit for Secondary devices reached */
|
|
rc = -EEXIST;
|
|
dev_err(&card->gdev->dev,
|
|
"The LAN cannot have more secondary Bridge Ports\n");
|
|
break;
|
|
case 0x2B24:
|
|
case 0x0024: /* This device is currently Primary */
|
|
rc = -EBUSY;
|
|
dev_err(&card->gdev->dev,
|
|
"The device is already a primary Bridge Port\n");
|
|
break;
|
|
case 0x2B20:
|
|
case 0x0020: /* Not authorized by zManager */
|
|
rc = -EACCES;
|
|
dev_err(&card->gdev->dev,
|
|
"The device is not authorized to be a Bridge Port\n");
|
|
break;
|
|
default:
|
|
rc = -EIO;
|
|
}
|
|
else
|
|
switch (cbctl->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", cbctl->ipa_rc);
|
|
QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static inline int ipa_cmd_sbp(struct qeth_card *card)
|
|
{
|
|
return (card->info.type == QETH_CARD_TYPE_IQD) ?
|
|
IPA_CMD_SETBRIDGEPORT_IQD :
|
|
IPA_CMD_SETBRIDGEPORT_OSA;
|
|
}
|
|
|
|
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;
|
|
QETH_CARD_TEXT(card, 2, "brqsupcb");
|
|
cbctl->ipa_rc = cmd->hdr.return_code;
|
|
cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
|
|
if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
|
|
cbctl->data.supported =
|
|
cmd->data.sbp.data.query_cmds_supp.supported_cmds;
|
|
} else {
|
|
cbctl->data.supported = 0;
|
|
}
|
|
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_ipa_cmd *cmd;
|
|
struct _qeth_sbp_cbctl cbctl;
|
|
|
|
QETH_CARD_TEXT(card, 2, "brqsuppo");
|
|
iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
|
|
if (!iob)
|
|
return;
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.sbp.hdr.cmdlength =
|
|
sizeof(struct qeth_ipacmd_sbp_hdr) +
|
|
sizeof(struct qeth_sbp_query_cmds_supp);
|
|
cmd->data.sbp.hdr.command_code =
|
|
IPA_SBP_QUERY_COMMANDS_SUPPORTED;
|
|
cmd->data.sbp.hdr.used_total = 1;
|
|
cmd->data.sbp.hdr.seq_no = 1;
|
|
if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
|
|
(void *)&cbctl) ||
|
|
qeth_bridgeport_makerc(card, &cbctl,
|
|
IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
|
|
/* non-zero makerc signifies failure, and produce messages */
|
|
card->options.sbp.role = QETH_SBP_ROLE_NONE;
|
|
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_query_ports *qports = &cmd->data.sbp.data.query_ports;
|
|
struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
|
|
|
|
QETH_CARD_TEXT(card, 2, "brqprtcb");
|
|
cbctl->ipa_rc = cmd->hdr.return_code;
|
|
cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
|
|
if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
|
|
return 0;
|
|
if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
|
|
cbctl->cmd_rc = 0xffff;
|
|
QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
|
|
return 0;
|
|
}
|
|
/* 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)
|
|
{
|
|
int rc = 0;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
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_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.sbp.hdr.cmdlength =
|
|
sizeof(struct qeth_ipacmd_sbp_hdr);
|
|
cmd->data.sbp.hdr.command_code =
|
|
IPA_SBP_QUERY_BRIDGE_PORTS;
|
|
cmd->data.sbp.hdr.used_total = 1;
|
|
cmd->data.sbp.hdr.seq_no = 1;
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
|
|
(void *)&cbctl);
|
|
if (rc < 0)
|
|
return rc;
|
|
return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
|
|
|
|
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;
|
|
struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
|
|
QETH_CARD_TEXT(card, 2, "brsetrcb");
|
|
cbctl->ipa_rc = cmd->hdr.return_code;
|
|
cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
int rc = 0;
|
|
int cmdlength;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct _qeth_sbp_cbctl cbctl;
|
|
enum qeth_ipa_sbp_cmd setcmd;
|
|
|
|
QETH_CARD_TEXT(card, 2, "brsetrol");
|
|
switch (role) {
|
|
case QETH_SBP_ROLE_NONE:
|
|
setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
|
|
cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
|
|
sizeof(struct qeth_sbp_reset_role);
|
|
break;
|
|
case QETH_SBP_ROLE_PRIMARY:
|
|
setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
|
|
cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
|
|
sizeof(struct qeth_sbp_set_primary);
|
|
break;
|
|
case QETH_SBP_ROLE_SECONDARY:
|
|
setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
|
|
cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
|
|
sizeof(struct qeth_sbp_set_secondary);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
if (!(card->options.sbp.supported_funcs & setcmd))
|
|
return -EOPNOTSUPP;
|
|
iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.sbp.hdr.cmdlength = cmdlength;
|
|
cmd->data.sbp.hdr.command_code = setcmd;
|
|
cmd->data.sbp.hdr.used_total = 1;
|
|
cmd->data.sbp.hdr.seq_no = 1;
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
|
|
(void *)&cbctl);
|
|
if (rc < 0)
|
|
return rc;
|
|
return qeth_bridgeport_makerc(card, &cbctl, setcmd);
|
|
}
|
|
|
|
/**
|
|
* qeth_anset_makerc() - derive "traditional" error from hardware codes.
|
|
* @card: qeth_card structure pointer, for debug messages.
|
|
*
|
|
* Returns negative errno-compatible error indication or 0 on success.
|
|
*/
|
|
static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
|
|
{
|
|
int rc;
|
|
|
|
if (pnso_rc == 0)
|
|
switch (response) {
|
|
case 0x0001:
|
|
rc = 0;
|
|
break;
|
|
case 0x0004:
|
|
case 0x0100:
|
|
case 0x0106:
|
|
rc = -EOPNOTSUPP;
|
|
dev_err(&card->gdev->dev,
|
|
"Setting address notification failed\n");
|
|
break;
|
|
case 0x0107:
|
|
rc = -EAGAIN;
|
|
break;
|
|
default:
|
|
rc = -EIO;
|
|
}
|
|
else
|
|
rc = -EIO;
|
|
|
|
if (rc) {
|
|
QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
|
|
QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static void qeth_bridgeport_an_set_cb(void *priv,
|
|
enum qdio_brinfo_entry_type type, void *entry)
|
|
{
|
|
struct qeth_card *card = (struct qeth_card *)priv;
|
|
struct qdio_brinfo_entry_l2 *l2entry;
|
|
u8 code;
|
|
|
|
if (type != l2_addr_lnid) {
|
|
WARN_ON_ONCE(1);
|
|
return;
|
|
}
|
|
|
|
l2entry = (struct qdio_brinfo_entry_l2 *)entry;
|
|
code = IPA_ADDR_CHANGE_CODE_MACADDR;
|
|
if (l2entry->addr_lnid.lnid)
|
|
code |= IPA_ADDR_CHANGE_CODE_VLANID;
|
|
qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
|
|
(struct net_if_token *)&l2entry->nit,
|
|
(struct mac_addr_lnid *)&l2entry->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;
|
|
u16 response;
|
|
struct ccw_device *ddev;
|
|
struct subchannel_id schid;
|
|
|
|
if (!card)
|
|
return -EINVAL;
|
|
if (!card->options.sbp.supported_funcs)
|
|
return -EOPNOTSUPP;
|
|
ddev = CARD_DDEV(card);
|
|
ccw_device_get_schid(ddev, &schid);
|
|
|
|
if (enable) {
|
|
qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
|
|
rc = qdio_pnso_brinfo(schid, 1, &response,
|
|
qeth_bridgeport_an_set_cb, card);
|
|
} else
|
|
rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
|
|
return qeth_anset_makerc(card, rc, response);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
|
|
|
|
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");
|