diff options
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_lif.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_lif.c | 108 |
1 files changed, 81 insertions, 27 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index 60bc1251d995..7812991f4736 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -30,9 +30,6 @@ static const u8 ionic_qtype_versions[IONIC_QTYPE_MAX] = { */ }; -static void ionic_lif_rx_mode(struct ionic_lif *lif); -static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr); -static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr); static void ionic_link_status_check(struct ionic_lif *lif); static void ionic_lif_handle_fw_down(struct ionic_lif *lif); static void ionic_lif_handle_fw_up(struct ionic_lif *lif); @@ -1072,7 +1069,11 @@ static int ionic_lif_add_hwstamp_rxfilt(struct ionic_lif *lif, u64 pkt_class) if (err && err != -EEXIST) return err; - return ionic_rx_filter_save(lif, 0, qid, 0, &ctx); + spin_lock_bh(&lif->rx_filters.lock); + err = ionic_rx_filter_save(lif, 0, qid, 0, &ctx, IONIC_FILTER_STATE_SYNCED); + spin_unlock_bh(&lif->rx_filters.lock); + + return err; } int ionic_lif_set_hwstamp_rxfilt(struct ionic_lif *lif, u64 pkt_class) @@ -1245,7 +1246,7 @@ void ionic_get_stats64(struct net_device *netdev, ns->tx_errors = ns->tx_aborted_errors; } -static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr) +int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr) { struct ionic_admin_ctx ctx = { .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), @@ -1256,26 +1257,64 @@ static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr) }, }; struct ionic_rx_filter *f; - int err; + int err = 0; - /* don't bother if we already have it */ spin_lock_bh(&lif->rx_filters.lock); f = ionic_rx_filter_by_addr(lif, addr); + if (f) { + /* don't bother if we already have it and it is sync'd */ + if (f->state == IONIC_FILTER_STATE_SYNCED) { + spin_unlock_bh(&lif->rx_filters.lock); + return 0; + } + + /* mark preemptively as sync'd to block any parallel attempts */ + f->state = IONIC_FILTER_STATE_SYNCED; + } else { + /* save as SYNCED to catch any DEL requests while processing */ + memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN); + err = ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx, + IONIC_FILTER_STATE_SYNCED); + } spin_unlock_bh(&lif->rx_filters.lock); - if (f) - return 0; + if (err) + return err; netdev_dbg(lif->netdev, "rx_filter add ADDR %pM\n", addr); - memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN); err = ionic_adminq_post_wait(lif, &ctx); - if (err && err != -EEXIST) + + spin_lock_bh(&lif->rx_filters.lock); + if (err && err != -EEXIST) { + /* set the state back to NEW so we can try again later */ + f = ionic_rx_filter_by_addr(lif, addr); + if (f && f->state == IONIC_FILTER_STATE_SYNCED) + f->state = IONIC_FILTER_STATE_NEW; + + spin_unlock_bh(&lif->rx_filters.lock); return err; + } + + f = ionic_rx_filter_by_addr(lif, addr); + if (f && f->state == IONIC_FILTER_STATE_OLD) { + /* Someone requested a delete while we were adding + * so update the filter info with the results from the add + * and the data will be there for the delete on the next + * sync cycle. + */ + err = ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx, + IONIC_FILTER_STATE_OLD); + } else { + err = ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx, + IONIC_FILTER_STATE_SYNCED); + } - return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx); + spin_unlock_bh(&lif->rx_filters.lock); + + return err; } -static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr) +int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr) { struct ionic_admin_ctx ctx = { .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), @@ -1285,6 +1324,7 @@ static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr) }, }; struct ionic_rx_filter *f; + int state; int err; spin_lock_bh(&lif->rx_filters.lock); @@ -1297,13 +1337,16 @@ static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr) netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n", addr, f->filter_id); + state = f->state; ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id); ionic_rx_filter_free(lif, f); spin_unlock_bh(&lif->rx_filters.lock); - err = ionic_adminq_post_wait(lif, &ctx); - if (err && err != -EEXIST) - return err; + if (state != IONIC_FILTER_STATE_NEW) { + err = ionic_adminq_post_wait(lif, &ctx); + if (err && err != -EEXIST) + return err; + } return 0; } @@ -1347,15 +1390,15 @@ static int ionic_lif_addr(struct ionic_lif *lif, const u8 *addr, bool add) static int ionic_addr_add(struct net_device *netdev, const u8 *addr) { - return ionic_lif_addr(netdev_priv(netdev), addr, ADD_ADDR); + return ionic_lif_list_addr(netdev_priv(netdev), addr, ADD_ADDR); } static int ionic_addr_del(struct net_device *netdev, const u8 *addr) { - return ionic_lif_addr(netdev_priv(netdev), addr, DEL_ADDR); + return ionic_lif_list_addr(netdev_priv(netdev), addr, DEL_ADDR); } -static void ionic_lif_rx_mode(struct ionic_lif *lif) +void ionic_lif_rx_mode(struct ionic_lif *lif) { struct net_device *netdev = lif->netdev; unsigned int nfilters; @@ -1376,14 +1419,15 @@ static void ionic_lif_rx_mode(struct ionic_lif *lif) rx_mode |= (nd_flags & IFF_PROMISC) ? IONIC_RX_MODE_F_PROMISC : 0; rx_mode |= (nd_flags & IFF_ALLMULTI) ? IONIC_RX_MODE_F_ALLMULTI : 0; - /* sync unicast addresses - * next check to see if we're in an overflow state + /* sync the mac filters */ + ionic_rx_filter_sync(lif); + + /* check for overflow state * if so, we track that we overflowed and enable NIC PROMISC * else if the overflow is set and not needed * we remove our overflow flag and check the netdev flags * to see if we can disable NIC PROMISC */ - __dev_uc_sync(netdev, ionic_addr_add, ionic_addr_del); nfilters = le32_to_cpu(lif->identity->eth.max_ucast_filters); if (netdev_uc_count(netdev) + 1 > nfilters) { rx_mode |= IONIC_RX_MODE_F_PROMISC; @@ -1394,8 +1438,6 @@ static void ionic_lif_rx_mode(struct ionic_lif *lif) rx_mode &= ~IONIC_RX_MODE_F_PROMISC; } - /* same for multicast */ - __dev_mc_sync(netdev, ionic_addr_add, ionic_addr_del); nfilters = le32_to_cpu(lif->identity->eth.max_mcast_filters); if (netdev_mc_count(netdev) > nfilters) { rx_mode |= IONIC_RX_MODE_F_ALLMULTI; @@ -1449,6 +1491,13 @@ static void ionic_ndo_set_rx_mode(struct net_device *netdev) struct ionic_lif *lif = netdev_priv(netdev); struct ionic_deferred_work *work; + /* Sync the kernel filter list with the driver filter list */ + __dev_uc_sync(netdev, ionic_addr_add, ionic_addr_del); + __dev_mc_sync(netdev, ionic_addr_add, ionic_addr_del); + + /* Shove off the rest of the rxmode work to the work task + * which will include syncing the filters to the firmware. + */ work = kzalloc(sizeof(*work), GFP_ATOMIC); if (!work) { netdev_err(lif->netdev, "rxmode change dropped\n"); @@ -1677,13 +1726,13 @@ static int ionic_set_mac_address(struct net_device *netdev, void *sa) if (!is_zero_ether_addr(netdev->dev_addr)) { netdev_info(netdev, "deleting mac addr %pM\n", netdev->dev_addr); - ionic_addr_del(netdev, netdev->dev_addr); + ionic_lif_addr_del(netdev_priv(netdev), netdev->dev_addr); } eth_commit_mac_addr_change(netdev, addr); netdev_info(netdev, "updating mac addr %pM\n", mac); - return ionic_addr_add(netdev, mac); + return ionic_lif_addr_add(netdev_priv(netdev), mac); } static void ionic_stop_queues_reconfig(struct ionic_lif *lif) @@ -1789,7 +1838,12 @@ static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, if (err) return err; - return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx); + spin_lock_bh(&lif->rx_filters.lock); + err = ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx, + IONIC_FILTER_STATE_SYNCED); + spin_unlock_bh(&lif->rx_filters.lock); + + return err; } static int ionic_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, |