diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 110 |
1 files changed, 109 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 7cba3d0035bf..fffbc50cadc6 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -21,6 +21,7 @@ #include <linux/list.h> #include <linux/hash.h> #include <linux/hashtable.h> +#include <net/switchdev.h> #include <asm/chsc.h> #include <asm/css_chars.h> #include <asm/setup.h> @@ -709,6 +710,68 @@ static int qeth_l2_pnso(struct qeth_card *card, u8 oc, int cnc, return rc; } +static bool qeth_is_my_net_if_token(struct qeth_card *card, + struct net_if_token *token) +{ + return ((card->info.ddev_devno == token->devnum) && + (card->info.cssid == token->cssid) && + (card->info.iid == token->iid) && + (card->info.ssid == token->ssid) && + (card->info.chpid == token->chpid) && + (card->info.chid == token->chid)); +} + +/** + * qeth_l2_dev2br_fdb_notify() - update fdb of master bridge + * @card: qeth_card structure pointer + * @code: event bitmask: high order bit 0x80 set to + * 1 - removal of an object + * 0 - addition of an object + * Object type(s): + * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC + * @token: "network token" structure identifying 'physical' location + * of the target + * @addr_lnid: structure with MAC address and VLAN ID of the target + */ +static void qeth_l2_dev2br_fdb_notify(struct qeth_card *card, u8 code, + struct net_if_token *token, + struct mac_addr_lnid *addr_lnid) +{ + struct switchdev_notifier_fdb_info info; + u8 ntfy_mac[ETH_ALEN]; + + ether_addr_copy(ntfy_mac, addr_lnid->mac); + /* Ignore VLAN only changes */ + if (!(code & IPA_ADDR_CHANGE_CODE_MACADDR)) + return; + /* Ignore mcast entries */ + if (is_multicast_ether_addr(ntfy_mac)) + return; + /* Ignore my own addresses */ + if (qeth_is_my_net_if_token(card, token)) + return; + + info.addr = ntfy_mac; + /* don't report VLAN IDs */ + info.vid = 0; + info.added_by_user = false; + info.offloaded = true; + + if (code & IPA_ADDR_CHANGE_CODE_REMOVAL) { + call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, + card->dev, &info.info, NULL); + QETH_CARD_TEXT(card, 4, "andelmac"); + QETH_CARD_TEXT_(card, 4, + "mc%012lx", ether_addr_to_u64(ntfy_mac)); + } else { + call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE, + card->dev, &info.info, NULL); + QETH_CARD_TEXT(card, 4, "anaddmac"); + QETH_CARD_TEXT_(card, 4, + "mc%012lx", ether_addr_to_u64(ntfy_mac)); + } +} + static const struct net_device_ops qeth_l2_netdev_ops = { .ndo_open = qeth_open, .ndo_stop = qeth_stop, @@ -1216,6 +1279,48 @@ struct qeth_addr_change_data { struct qeth_ipacmd_addr_change ac_event; }; +static void qeth_l2_dev2br_worker(struct work_struct *work) +{ + struct delayed_work *dwork = to_delayed_work(work); + struct qeth_addr_change_data *data; + struct qeth_card *card; + unsigned int i; + + data = container_of(dwork, struct qeth_addr_change_data, dwork); + card = data->card; + + QETH_CARD_TEXT(card, 4, "dev2brew"); + + if (READ_ONCE(card->info.pnso_mode) == QETH_PNSO_NONE) + goto free; + + /* Potential re-config in progress, try again later: */ + if (!rtnl_trylock()) { + queue_delayed_work(card->event_wq, dwork, + msecs_to_jiffies(100)); + return; + } + + if (data->ac_event.lost_event_mask) { + QETH_DBF_MESSAGE(3, + "Address change notification overflow on device %x\n", + CARD_DEVID(card)); + } else { + for (i = 0; i < data->ac_event.num_entries; i++) { + struct qeth_ipacmd_addr_change_entry *entry = + &data->ac_event.entry[i]; + qeth_l2_dev2br_fdb_notify(card, + entry->change_code, + &entry->token, + &entry->addr_lnid); + } + } + rtnl_unlock(); + +free: + kfree(data); +} + static void qeth_addr_change_event_worker(struct work_struct *work) { struct delayed_work *dwork = to_delayed_work(work); @@ -1298,7 +1403,10 @@ static void qeth_addr_change_event(struct qeth_card *card, QETH_CARD_TEXT(card, 2, "ACNalloc"); return; } - INIT_DELAYED_WORK(&data->dwork, qeth_addr_change_event_worker); + if (card->info.pnso_mode == QETH_PNSO_BRIDGEPORT) + INIT_DELAYED_WORK(&data->dwork, qeth_addr_change_event_worker); + else + INIT_DELAYED_WORK(&data->dwork, qeth_l2_dev2br_worker); data->card = card; memcpy(&data->ac_event, hostevs, sizeof(struct qeth_ipacmd_addr_change) + extrasize); |