diff options
Diffstat (limited to 'drivers/net/ethernet/sun')
-rw-r--r-- | drivers/net/ethernet/sun/ldmvsw.c | 27 | ||||
-rw-r--r-- | drivers/net/ethernet/sun/sunvnet.c | 116 | ||||
-rw-r--r-- | drivers/net/ethernet/sun/sunvnet_common.c | 56 | ||||
-rw-r--r-- | drivers/net/ethernet/sun/sunvnet_common.h | 27 |
4 files changed, 201 insertions, 25 deletions
diff --git a/drivers/net/ethernet/sun/ldmvsw.c b/drivers/net/ethernet/sun/ldmvsw.c index 89952deae47f..5a90fed06260 100644 --- a/drivers/net/ethernet/sun/ldmvsw.c +++ b/drivers/net/ethernet/sun/ldmvsw.c @@ -1,6 +1,6 @@ /* ldmvsw.c: Sun4v LDOM Virtual Switch Driver. * - * Copyright (C) 2016 Oracle. All rights reserved. + * Copyright (C) 2016-2017 Oracle. All rights reserved. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -41,8 +41,8 @@ static u8 vsw_port_hwaddr[ETH_ALEN] = {0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; #define DRV_MODULE_NAME "ldmvsw" -#define DRV_MODULE_VERSION "1.1" -#define DRV_MODULE_RELDATE "February 3, 2017" +#define DRV_MODULE_VERSION "1.2" +#define DRV_MODULE_RELDATE "March 4, 2017" static char version[] = DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")"; @@ -123,6 +123,20 @@ static void vsw_set_rx_mode(struct net_device *dev) return sunvnet_set_rx_mode_common(dev, port->vp); } +int ldmvsw_open(struct net_device *dev) +{ + struct vnet_port *port = netdev_priv(dev); + struct vio_driver_state *vio = &port->vio; + + /* reset the channel */ + vio_link_state_change(vio, LDC_EVENT_RESET); + vnet_port_reset(port); + vio_port_up(vio); + + return 0; +} +EXPORT_SYMBOL_GPL(ldmvsw_open); + #ifdef CONFIG_NET_POLL_CONTROLLER static void vsw_poll_controller(struct net_device *dev) { @@ -133,7 +147,7 @@ static void vsw_poll_controller(struct net_device *dev) #endif static const struct net_device_ops vsw_ops = { - .ndo_open = sunvnet_open_common, + .ndo_open = ldmvsw_open, .ndo_stop = sunvnet_close_common, .ndo_set_rx_mode = vsw_set_rx_mode, .ndo_set_mac_address = sunvnet_set_mac_addr_common, @@ -365,6 +379,11 @@ static int vsw_port_probe(struct vio_dev *vdev, const struct vio_device_id *id) napi_enable(&port->napi); vio_port_up(&port->vio); + /* assure no carrier until we receive an LDC_EVENT_UP, + * even if the vsw config script tries to force us up + */ + netif_carrier_off(dev); + netdev_info(dev, "LDOM vsw-port %pM\n", dev->dev_addr); pr_info("%s: PORT ( remote-mac %pM%s )\n", dev->name, diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c index 4cc2571f71c6..0b95105f7060 100644 --- a/drivers/net/ethernet/sun/sunvnet.c +++ b/drivers/net/ethernet/sun/sunvnet.c @@ -1,7 +1,7 @@ /* sunvnet.c: Sun LDOM Virtual Network Driver. * * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> - * Copyright (C) 2016 Oracle. All rights reserved. + * Copyright (C) 2016-2017 Oracle. All rights reserved. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -77,11 +77,125 @@ static void vnet_set_msglevel(struct net_device *dev, u32 value) vp->msg_enable = value; } +static const struct { + const char string[ETH_GSTRING_LEN]; +} ethtool_stats_keys[] = { + { "rx_packets" }, + { "tx_packets" }, + { "rx_bytes" }, + { "tx_bytes" }, + { "rx_errors" }, + { "tx_errors" }, + { "rx_dropped" }, + { "tx_dropped" }, + { "multicast" }, + { "rx_length_errors" }, + { "rx_frame_errors" }, + { "rx_missed_errors" }, + { "tx_carrier_errors" }, + { "nports" }, +}; + +static int vnet_get_sset_count(struct net_device *dev, int sset) +{ + struct vnet *vp = (struct vnet *)netdev_priv(dev); + + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(ethtool_stats_keys) + + (NUM_VNET_PORT_STATS * vp->nports); + default: + return -EOPNOTSUPP; + } +} + +static void vnet_get_strings(struct net_device *dev, u32 stringset, u8 *buf) +{ + struct vnet *vp = (struct vnet *)netdev_priv(dev); + struct vnet_port *port; + char *p = (char *)buf; + + switch (stringset) { + case ETH_SS_STATS: + memcpy(buf, ðtool_stats_keys, sizeof(ethtool_stats_keys)); + p += sizeof(ethtool_stats_keys); + + rcu_read_lock(); + list_for_each_entry_rcu(port, &vp->port_list, list) { + snprintf(p, ETH_GSTRING_LEN, "p%u.%s-%pM", + port->q_index, port->switch_port ? "s" : "q", + port->raddr); + p += ETH_GSTRING_LEN; + snprintf(p, ETH_GSTRING_LEN, "p%u.rx_packets", + port->q_index); + p += ETH_GSTRING_LEN; + snprintf(p, ETH_GSTRING_LEN, "p%u.tx_packets", + port->q_index); + p += ETH_GSTRING_LEN; + snprintf(p, ETH_GSTRING_LEN, "p%u.rx_bytes", + port->q_index); + p += ETH_GSTRING_LEN; + snprintf(p, ETH_GSTRING_LEN, "p%u.tx_bytes", + port->q_index); + p += ETH_GSTRING_LEN; + snprintf(p, ETH_GSTRING_LEN, "p%u.event_up", + port->q_index); + p += ETH_GSTRING_LEN; + snprintf(p, ETH_GSTRING_LEN, "p%u.event_reset", + port->q_index); + p += ETH_GSTRING_LEN; + } + rcu_read_unlock(); + break; + default: + WARN_ON(1); + break; + } +} + +static void vnet_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *estats, u64 *data) +{ + struct vnet *vp = (struct vnet *)netdev_priv(dev); + struct vnet_port *port; + int i = 0; + + data[i++] = dev->stats.rx_packets; + data[i++] = dev->stats.tx_packets; + data[i++] = dev->stats.rx_bytes; + data[i++] = dev->stats.tx_bytes; + data[i++] = dev->stats.rx_errors; + data[i++] = dev->stats.tx_errors; + data[i++] = dev->stats.rx_dropped; + data[i++] = dev->stats.tx_dropped; + data[i++] = dev->stats.multicast; + data[i++] = dev->stats.rx_length_errors; + data[i++] = dev->stats.rx_frame_errors; + data[i++] = dev->stats.rx_missed_errors; + data[i++] = dev->stats.tx_carrier_errors; + data[i++] = vp->nports; + + rcu_read_lock(); + list_for_each_entry_rcu(port, &vp->port_list, list) { + data[i++] = port->q_index; + data[i++] = port->stats.rx_packets; + data[i++] = port->stats.tx_packets; + data[i++] = port->stats.rx_bytes; + data[i++] = port->stats.tx_bytes; + data[i++] = port->stats.event_up; + data[i++] = port->stats.event_reset; + } + rcu_read_unlock(); +} + static const struct ethtool_ops vnet_ethtool_ops = { .get_drvinfo = vnet_get_drvinfo, .get_msglevel = vnet_get_msglevel, .set_msglevel = vnet_set_msglevel, .get_link = ethtool_op_get_link, + .get_sset_count = vnet_get_sset_count, + .get_strings = vnet_get_strings, + .get_ethtool_stats = vnet_get_ethtool_stats, }; static LIST_HEAD(vnet_list); diff --git a/drivers/net/ethernet/sun/sunvnet_common.c b/drivers/net/ethernet/sun/sunvnet_common.c index fa2d11ca9b81..9e86833249d4 100644 --- a/drivers/net/ethernet/sun/sunvnet_common.c +++ b/drivers/net/ethernet/sun/sunvnet_common.c @@ -1,7 +1,7 @@ /* sunvnet.c: Sun LDOM Virtual Network Driver. * * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> - * Copyright (C) 2016 Oracle. All rights reserved. + * Copyright (C) 2016-2017 Oracle. All rights reserved. */ #include <linux/module.h> @@ -43,7 +43,6 @@ MODULE_LICENSE("GPL"); MODULE_VERSION("1.1"); static int __vnet_tx_trigger(struct vnet_port *port, u32 start); -static void vnet_port_reset(struct vnet_port *port); static inline u32 vnet_tx_dring_avail(struct vio_dring_state *dr) { @@ -410,8 +409,12 @@ static int vnet_rx_one(struct vnet_port *port, struct vio_net_desc *desc) skb->ip_summed = port->switch_port ? CHECKSUM_NONE : CHECKSUM_PARTIAL; + if (unlikely(is_multicast_ether_addr(eth_hdr(skb)->h_dest))) + dev->stats.multicast++; dev->stats.rx_packets++; dev->stats.rx_bytes += len; + port->stats.rx_packets++; + port->stats.rx_bytes += len; napi_gro_receive(&port->napi, skb); return 0; @@ -747,6 +750,13 @@ static int vnet_event_napi(struct vnet_port *port, int budget) /* RESET takes precedent over any other event */ if (port->rx_event & LDC_EVENT_RESET) { + /* a link went down */ + + if (port->vsw == 1) { + netif_tx_stop_all_queues(dev); + netif_carrier_off(dev); + } + vio_link_state_change(vio, LDC_EVENT_RESET); vnet_port_reset(port); vio_port_up(vio); @@ -762,12 +772,21 @@ static int vnet_event_napi(struct vnet_port *port, int budget) maybe_tx_wakeup(port); port->rx_event = 0; + port->stats.event_reset++; return 0; } if (port->rx_event & LDC_EVENT_UP) { + /* a link came up */ + + if (port->vsw == 1) { + netif_carrier_on(port->dev); + netif_tx_start_all_queues(port->dev); + } + vio_link_state_change(vio, LDC_EVENT_UP); port->rx_event = 0; + port->stats.event_up++; return 0; } @@ -1417,6 +1436,8 @@ ldc_start_done: dev->stats.tx_packets++; dev->stats.tx_bytes += port->tx_bufs[txi].skb->len; + port->stats.tx_packets++; + port->stats.tx_bytes += port->tx_bufs[txi].skb->len; dr->prod = (dr->prod + 1) & (VNET_TX_RING_SIZE - 1); if (unlikely(vnet_tx_dring_avail(dr) < 1)) { @@ -1631,7 +1652,7 @@ void sunvnet_port_free_tx_bufs_common(struct vnet_port *port) } EXPORT_SYMBOL_GPL(sunvnet_port_free_tx_bufs_common); -static void vnet_port_reset(struct vnet_port *port) +void vnet_port_reset(struct vnet_port *port) { del_timer(&port->clean_timer); sunvnet_port_free_tx_bufs_common(port); @@ -1639,6 +1660,7 @@ static void vnet_port_reset(struct vnet_port *port) port->tso = (port->vsw == 0); /* no tso in vsw, misbehaves in bridge */ port->tsolen = 0; } +EXPORT_SYMBOL_GPL(vnet_port_reset); static int vnet_port_alloc_tx_ring(struct vnet_port *port) { @@ -1708,20 +1730,32 @@ EXPORT_SYMBOL_GPL(sunvnet_poll_controller_common); void sunvnet_port_add_txq_common(struct vnet_port *port) { struct vnet *vp = port->vp; - int n; + int smallest = 0; + int i; + + /* find the first least-used q + * When there are more ldoms than q's, we start to + * double up on ports per queue. + */ + for (i = 0; i < VNET_MAX_TXQS; i++) { + if (vp->q_used[i] == 0) { + smallest = i; + break; + } + if (vp->q_used[i] < vp->q_used[smallest]) + smallest = i; + } - n = vp->nports++; - n = n & (VNET_MAX_TXQS - 1); - port->q_index = n; - netif_tx_wake_queue(netdev_get_tx_queue(VNET_PORT_TO_NET_DEVICE(port), - port->q_index)); + vp->nports++; + vp->q_used[smallest]++; + port->q_index = smallest; } EXPORT_SYMBOL_GPL(sunvnet_port_add_txq_common); void sunvnet_port_rm_txq_common(struct vnet_port *port) { port->vp->nports--; - netif_tx_stop_queue(netdev_get_tx_queue(VNET_PORT_TO_NET_DEVICE(port), - port->q_index)); + port->vp->q_used[port->q_index]--; + port->q_index = 0; } EXPORT_SYMBOL_GPL(sunvnet_port_rm_txq_common); diff --git a/drivers/net/ethernet/sun/sunvnet_common.h b/drivers/net/ethernet/sun/sunvnet_common.h index ce5c824128a3..b20d6fa7ef25 100644 --- a/drivers/net/ethernet/sun/sunvnet_common.h +++ b/drivers/net/ethernet/sun/sunvnet_common.h @@ -35,6 +35,19 @@ struct vnet_tx_entry { struct vnet; +struct vnet_port_stats { + /* keep them all the same size */ + u32 rx_bytes; + u32 tx_bytes; + u32 rx_packets; + u32 tx_packets; + u32 event_up; + u32 event_reset; + u32 q_placeholder; +}; + +#define NUM_VNET_PORT_STATS (sizeof(struct vnet_port_stats) / sizeof(u32)) + /* Structure to describe a vnet-port or vsw-port in the MD. * If the vsw bit is set, this structure represents a vswitch * port, and the net_device can be found from ->dev. If the @@ -44,6 +57,8 @@ struct vnet; struct vnet_port { struct vio_driver_state vio; + struct vnet_port_stats stats; + struct hlist_node hash; u8 raddr[ETH_ALEN]; unsigned switch_port:1; @@ -97,22 +112,15 @@ struct vnet_mcast_entry { }; struct vnet { - /* Protects port_list and port_hash. */ - spinlock_t lock; - + spinlock_t lock; /* Protects port_list and port_hash. */ struct net_device *dev; - u32 msg_enable; - + u8 q_used[VNET_MAX_TXQS]; struct list_head port_list; - struct hlist_head port_hash[VNET_PORT_HASH_SIZE]; - struct vnet_mcast_entry *mcast_list; - struct list_head list; u64 local_mac; - int nports; }; @@ -139,6 +147,7 @@ int sunvnet_handle_attr_common(struct vio_driver_state *vio, void *arg); void sunvnet_handshake_complete_common(struct vio_driver_state *vio); int sunvnet_poll_common(struct napi_struct *napi, int budget); void sunvnet_port_free_tx_bufs_common(struct vnet_port *port); +void vnet_port_reset(struct vnet_port *port); bool sunvnet_port_is_up_common(struct vnet_port *vnet); void sunvnet_port_add_txq_common(struct vnet_port *port); void sunvnet_port_rm_txq_common(struct vnet_port *port); |