2664 lines
70 KiB
C
2664 lines
70 KiB
C
/*
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* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <linux/etherdevice.h>
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#include <linux/tcp.h>
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#include <linux/if_vlan.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/hash.h>
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#include <net/ip.h>
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#include <net/busy_poll.h>
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#include <net/vxlan.h>
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#include <linux/mlx4/driver.h>
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#include <linux/mlx4/device.h>
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#include <linux/mlx4/cmd.h>
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#include <linux/mlx4/cq.h>
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#include "mlx4_en.h"
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#include "en_port.h"
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int mlx4_en_setup_tc(struct net_device *dev, u8 up)
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{
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struct mlx4_en_priv *priv = netdev_priv(dev);
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int i;
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unsigned int offset = 0;
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if (up && up != MLX4_EN_NUM_UP)
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return -EINVAL;
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netdev_set_num_tc(dev, up);
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/* Partition Tx queues evenly amongst UP's */
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for (i = 0; i < up; i++) {
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netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset);
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offset += priv->num_tx_rings_p_up;
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}
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return 0;
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}
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#ifdef CONFIG_NET_RX_BUSY_POLL
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/* must be called with local_bh_disable()d */
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static int mlx4_en_low_latency_recv(struct napi_struct *napi)
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{
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struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
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struct net_device *dev = cq->dev;
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struct mlx4_en_priv *priv = netdev_priv(dev);
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struct mlx4_en_rx_ring *rx_ring = priv->rx_ring[cq->ring];
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int done;
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if (!priv->port_up)
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return LL_FLUSH_FAILED;
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if (!mlx4_en_cq_lock_poll(cq))
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return LL_FLUSH_BUSY;
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done = mlx4_en_process_rx_cq(dev, cq, 4);
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if (likely(done))
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rx_ring->cleaned += done;
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else
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rx_ring->misses++;
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mlx4_en_cq_unlock_poll(cq);
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return done;
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}
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#endif /* CONFIG_NET_RX_BUSY_POLL */
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#ifdef CONFIG_RFS_ACCEL
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struct mlx4_en_filter {
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struct list_head next;
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struct work_struct work;
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u8 ip_proto;
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__be32 src_ip;
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__be32 dst_ip;
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__be16 src_port;
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__be16 dst_port;
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int rxq_index;
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struct mlx4_en_priv *priv;
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u32 flow_id; /* RFS infrastructure id */
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int id; /* mlx4_en driver id */
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u64 reg_id; /* Flow steering API id */
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u8 activated; /* Used to prevent expiry before filter
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* is attached
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*/
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struct hlist_node filter_chain;
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};
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static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
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static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto)
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{
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switch (ip_proto) {
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case IPPROTO_UDP:
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return MLX4_NET_TRANS_RULE_ID_UDP;
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case IPPROTO_TCP:
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return MLX4_NET_TRANS_RULE_ID_TCP;
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default:
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return MLX4_NET_TRANS_RULE_NUM;
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}
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};
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static void mlx4_en_filter_work(struct work_struct *work)
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{
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struct mlx4_en_filter *filter = container_of(work,
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struct mlx4_en_filter,
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work);
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struct mlx4_en_priv *priv = filter->priv;
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struct mlx4_spec_list spec_tcp_udp = {
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.id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto),
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{
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.tcp_udp = {
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.dst_port = filter->dst_port,
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.dst_port_msk = (__force __be16)-1,
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.src_port = filter->src_port,
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.src_port_msk = (__force __be16)-1,
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},
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},
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};
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struct mlx4_spec_list spec_ip = {
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.id = MLX4_NET_TRANS_RULE_ID_IPV4,
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{
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.ipv4 = {
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.dst_ip = filter->dst_ip,
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.dst_ip_msk = (__force __be32)-1,
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.src_ip = filter->src_ip,
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.src_ip_msk = (__force __be32)-1,
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},
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},
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};
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struct mlx4_spec_list spec_eth = {
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.id = MLX4_NET_TRANS_RULE_ID_ETH,
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};
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struct mlx4_net_trans_rule rule = {
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.list = LIST_HEAD_INIT(rule.list),
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.queue_mode = MLX4_NET_TRANS_Q_LIFO,
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.exclusive = 1,
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.allow_loopback = 1,
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.promisc_mode = MLX4_FS_REGULAR,
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.port = priv->port,
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.priority = MLX4_DOMAIN_RFS,
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};
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int rc;
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__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
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if (spec_tcp_udp.id >= MLX4_NET_TRANS_RULE_NUM) {
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en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n",
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filter->ip_proto);
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goto ignore;
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}
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list_add_tail(&spec_eth.list, &rule.list);
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list_add_tail(&spec_ip.list, &rule.list);
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list_add_tail(&spec_tcp_udp.list, &rule.list);
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rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
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memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
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memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
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filter->activated = 0;
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if (filter->reg_id) {
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rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
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if (rc && rc != -ENOENT)
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en_err(priv, "Error detaching flow. rc = %d\n", rc);
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}
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rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id);
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if (rc)
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en_err(priv, "Error attaching flow. err = %d\n", rc);
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ignore:
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mlx4_en_filter_rfs_expire(priv);
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filter->activated = 1;
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}
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static inline struct hlist_head *
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filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
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__be16 src_port, __be16 dst_port)
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{
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unsigned long l;
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int bucket_idx;
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l = (__force unsigned long)src_port |
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((__force unsigned long)dst_port << 2);
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l ^= (__force unsigned long)(src_ip ^ dst_ip);
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bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT);
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return &priv->filter_hash[bucket_idx];
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}
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static struct mlx4_en_filter *
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mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
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__be32 dst_ip, u8 ip_proto, __be16 src_port,
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__be16 dst_port, u32 flow_id)
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{
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struct mlx4_en_filter *filter = NULL;
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filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC);
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if (!filter)
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return NULL;
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filter->priv = priv;
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filter->rxq_index = rxq_index;
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INIT_WORK(&filter->work, mlx4_en_filter_work);
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filter->src_ip = src_ip;
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filter->dst_ip = dst_ip;
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filter->ip_proto = ip_proto;
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filter->src_port = src_port;
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filter->dst_port = dst_port;
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filter->flow_id = flow_id;
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filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
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list_add_tail(&filter->next, &priv->filters);
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hlist_add_head(&filter->filter_chain,
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filter_hash_bucket(priv, src_ip, dst_ip, src_port,
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dst_port));
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return filter;
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}
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static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
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{
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struct mlx4_en_priv *priv = filter->priv;
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int rc;
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list_del(&filter->next);
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rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
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if (rc && rc != -ENOENT)
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en_err(priv, "Error detaching flow. rc = %d\n", rc);
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kfree(filter);
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}
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static inline struct mlx4_en_filter *
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mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
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u8 ip_proto, __be16 src_port, __be16 dst_port)
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{
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struct mlx4_en_filter *filter;
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struct mlx4_en_filter *ret = NULL;
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hlist_for_each_entry(filter,
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filter_hash_bucket(priv, src_ip, dst_ip,
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src_port, dst_port),
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filter_chain) {
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if (filter->src_ip == src_ip &&
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filter->dst_ip == dst_ip &&
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filter->ip_proto == ip_proto &&
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filter->src_port == src_port &&
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filter->dst_port == dst_port) {
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ret = filter;
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break;
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}
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}
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return ret;
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}
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static int
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mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
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u16 rxq_index, u32 flow_id)
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{
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struct mlx4_en_priv *priv = netdev_priv(net_dev);
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struct mlx4_en_filter *filter;
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const struct iphdr *ip;
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const __be16 *ports;
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u8 ip_proto;
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__be32 src_ip;
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__be32 dst_ip;
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__be16 src_port;
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__be16 dst_port;
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int nhoff = skb_network_offset(skb);
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int ret = 0;
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if (skb->protocol != htons(ETH_P_IP))
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return -EPROTONOSUPPORT;
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ip = (const struct iphdr *)(skb->data + nhoff);
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if (ip_is_fragment(ip))
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return -EPROTONOSUPPORT;
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if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP))
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return -EPROTONOSUPPORT;
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ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
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ip_proto = ip->protocol;
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src_ip = ip->saddr;
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dst_ip = ip->daddr;
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src_port = ports[0];
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dst_port = ports[1];
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spin_lock_bh(&priv->filters_lock);
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filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto,
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src_port, dst_port);
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if (filter) {
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if (filter->rxq_index == rxq_index)
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goto out;
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filter->rxq_index = rxq_index;
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} else {
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filter = mlx4_en_filter_alloc(priv, rxq_index,
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src_ip, dst_ip, ip_proto,
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src_port, dst_port, flow_id);
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if (!filter) {
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ret = -ENOMEM;
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goto err;
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}
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}
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queue_work(priv->mdev->workqueue, &filter->work);
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out:
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ret = filter->id;
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err:
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spin_unlock_bh(&priv->filters_lock);
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return ret;
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}
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void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv)
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{
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struct mlx4_en_filter *filter, *tmp;
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LIST_HEAD(del_list);
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spin_lock_bh(&priv->filters_lock);
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list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
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list_move(&filter->next, &del_list);
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hlist_del(&filter->filter_chain);
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}
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spin_unlock_bh(&priv->filters_lock);
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list_for_each_entry_safe(filter, tmp, &del_list, next) {
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cancel_work_sync(&filter->work);
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mlx4_en_filter_free(filter);
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}
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}
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static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv)
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{
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struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL;
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LIST_HEAD(del_list);
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int i = 0;
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spin_lock_bh(&priv->filters_lock);
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list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
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if (i > MLX4_EN_FILTER_EXPIRY_QUOTA)
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break;
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if (filter->activated &&
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!work_pending(&filter->work) &&
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rps_may_expire_flow(priv->dev,
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filter->rxq_index, filter->flow_id,
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filter->id)) {
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list_move(&filter->next, &del_list);
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hlist_del(&filter->filter_chain);
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} else
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last_filter = filter;
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i++;
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}
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if (last_filter && (&last_filter->next != priv->filters.next))
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list_move(&priv->filters, &last_filter->next);
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spin_unlock_bh(&priv->filters_lock);
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list_for_each_entry_safe(filter, tmp, &del_list, next)
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mlx4_en_filter_free(filter);
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}
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#endif
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static int mlx4_en_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 mlx4_en_priv *priv = netdev_priv(dev);
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struct mlx4_en_dev *mdev = priv->mdev;
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int err;
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int idx;
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en_dbg(HW, priv, "adding VLAN:%d\n", vid);
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set_bit(vid, priv->active_vlans);
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/* Add VID to port VLAN filter */
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mutex_lock(&mdev->state_lock);
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if (mdev->device_up && priv->port_up) {
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err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
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if (err)
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en_err(priv, "Failed configuring VLAN filter\n");
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}
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if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
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en_dbg(HW, priv, "failed adding vlan %d\n", vid);
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mutex_unlock(&mdev->state_lock);
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|
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return 0;
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}
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|
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static int mlx4_en_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 mlx4_en_priv *priv = netdev_priv(dev);
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struct mlx4_en_dev *mdev = priv->mdev;
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int err;
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en_dbg(HW, priv, "Killing VID:%d\n", vid);
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clear_bit(vid, priv->active_vlans);
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/* Remove VID from port VLAN filter */
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mutex_lock(&mdev->state_lock);
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mlx4_unregister_vlan(mdev->dev, priv->port, vid);
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if (mdev->device_up && priv->port_up) {
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err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
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if (err)
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en_err(priv, "Failed configuring VLAN filter\n");
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}
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mutex_unlock(&mdev->state_lock);
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return 0;
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}
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|
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static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
|
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{
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int i;
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for (i = ETH_ALEN - 1; i >= 0; --i) {
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dst_mac[i] = src_mac & 0xff;
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src_mac >>= 8;
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}
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memset(&dst_mac[ETH_ALEN], 0, 2);
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}
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|
|
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static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *addr,
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int qpn, u64 *reg_id)
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{
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int err;
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|
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if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
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return 0; /* do nothing */
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|
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err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn,
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MLX4_DOMAIN_NIC, reg_id);
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if (err) {
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en_err(priv, "failed to add vxlan steering rule, err %d\n", err);
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return err;
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}
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en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id);
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return 0;
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}
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|
|
|
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static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv,
|
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unsigned char *mac, int *qpn, u64 *reg_id)
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{
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_dev *dev = mdev->dev;
|
|
int err;
|
|
|
|
switch (dev->caps.steering_mode) {
|
|
case MLX4_STEERING_MODE_B0: {
|
|
struct mlx4_qp qp;
|
|
u8 gid[16] = {0};
|
|
|
|
qp.qpn = *qpn;
|
|
memcpy(&gid[10], mac, ETH_ALEN);
|
|
gid[5] = priv->port;
|
|
|
|
err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
|
|
break;
|
|
}
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED: {
|
|
struct mlx4_spec_list spec_eth = { {NULL} };
|
|
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
|
|
|
|
struct mlx4_net_trans_rule rule = {
|
|
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
|
|
.exclusive = 0,
|
|
.allow_loopback = 1,
|
|
.promisc_mode = MLX4_FS_REGULAR,
|
|
.priority = MLX4_DOMAIN_NIC,
|
|
};
|
|
|
|
rule.port = priv->port;
|
|
rule.qpn = *qpn;
|
|
INIT_LIST_HEAD(&rule.list);
|
|
|
|
spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH;
|
|
memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN);
|
|
memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
|
|
list_add_tail(&spec_eth.list, &rule.list);
|
|
|
|
err = mlx4_flow_attach(dev, &rule, reg_id);
|
|
break;
|
|
}
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
if (err)
|
|
en_warn(priv, "Failed Attaching Unicast\n");
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv,
|
|
unsigned char *mac, int qpn, u64 reg_id)
|
|
{
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_dev *dev = mdev->dev;
|
|
|
|
switch (dev->caps.steering_mode) {
|
|
case MLX4_STEERING_MODE_B0: {
|
|
struct mlx4_qp qp;
|
|
u8 gid[16] = {0};
|
|
|
|
qp.qpn = qpn;
|
|
memcpy(&gid[10], mac, ETH_ALEN);
|
|
gid[5] = priv->port;
|
|
|
|
mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
|
|
break;
|
|
}
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED: {
|
|
mlx4_flow_detach(dev, reg_id);
|
|
break;
|
|
}
|
|
default:
|
|
en_err(priv, "Invalid steering mode.\n");
|
|
}
|
|
}
|
|
|
|
static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
|
|
{
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_dev *dev = mdev->dev;
|
|
struct mlx4_mac_entry *entry;
|
|
int index = 0;
|
|
int err = 0;
|
|
u64 reg_id;
|
|
int *qpn = &priv->base_qpn;
|
|
u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
|
|
|
|
en_dbg(DRV, priv, "Registering MAC: %pM for adding\n",
|
|
priv->dev->dev_addr);
|
|
index = mlx4_register_mac(dev, priv->port, mac);
|
|
if (index < 0) {
|
|
err = index;
|
|
en_err(priv, "Failed adding MAC: %pM\n",
|
|
priv->dev->dev_addr);
|
|
return err;
|
|
}
|
|
|
|
if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
|
|
int base_qpn = mlx4_get_base_qpn(dev, priv->port);
|
|
*qpn = base_qpn + index;
|
|
return 0;
|
|
}
|
|
|
|
err = mlx4_qp_reserve_range(dev, 1, 1, qpn);
|
|
en_dbg(DRV, priv, "Reserved qp %d\n", *qpn);
|
|
if (err) {
|
|
en_err(priv, "Failed to reserve qp for mac registration\n");
|
|
goto qp_err;
|
|
}
|
|
|
|
err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id);
|
|
if (err)
|
|
goto steer_err;
|
|
|
|
err = mlx4_en_tunnel_steer_add(priv, priv->dev->dev_addr, *qpn,
|
|
&priv->tunnel_reg_id);
|
|
if (err)
|
|
goto tunnel_err;
|
|
|
|
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
|
|
if (!entry) {
|
|
err = -ENOMEM;
|
|
goto alloc_err;
|
|
}
|
|
memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
|
|
memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
|
|
entry->reg_id = reg_id;
|
|
|
|
hlist_add_head_rcu(&entry->hlist,
|
|
&priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]);
|
|
|
|
return 0;
|
|
|
|
alloc_err:
|
|
if (priv->tunnel_reg_id)
|
|
mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
|
|
tunnel_err:
|
|
mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id);
|
|
|
|
steer_err:
|
|
mlx4_qp_release_range(dev, *qpn, 1);
|
|
|
|
qp_err:
|
|
mlx4_unregister_mac(dev, priv->port, mac);
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
|
|
{
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_dev *dev = mdev->dev;
|
|
int qpn = priv->base_qpn;
|
|
u64 mac;
|
|
|
|
if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
|
|
mac = mlx4_mac_to_u64(priv->dev->dev_addr);
|
|
en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
|
|
priv->dev->dev_addr);
|
|
mlx4_unregister_mac(dev, priv->port, mac);
|
|
} else {
|
|
struct mlx4_mac_entry *entry;
|
|
struct hlist_node *tmp;
|
|
struct hlist_head *bucket;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
|
|
bucket = &priv->mac_hash[i];
|
|
hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
|
|
mac = mlx4_mac_to_u64(entry->mac);
|
|
en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
|
|
entry->mac);
|
|
mlx4_en_uc_steer_release(priv, entry->mac,
|
|
qpn, entry->reg_id);
|
|
|
|
mlx4_unregister_mac(dev, priv->port, mac);
|
|
hlist_del_rcu(&entry->hlist);
|
|
kfree_rcu(entry, rcu);
|
|
}
|
|
}
|
|
|
|
if (priv->tunnel_reg_id) {
|
|
mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
|
|
priv->tunnel_reg_id = 0;
|
|
}
|
|
|
|
en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n",
|
|
priv->port, qpn);
|
|
mlx4_qp_release_range(dev, qpn, 1);
|
|
priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
|
|
}
|
|
}
|
|
|
|
static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
|
|
unsigned char *new_mac, unsigned char *prev_mac)
|
|
{
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_dev *dev = mdev->dev;
|
|
int err = 0;
|
|
u64 new_mac_u64 = mlx4_mac_to_u64(new_mac);
|
|
|
|
if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) {
|
|
struct hlist_head *bucket;
|
|
unsigned int mac_hash;
|
|
struct mlx4_mac_entry *entry;
|
|
struct hlist_node *tmp;
|
|
u64 prev_mac_u64 = mlx4_mac_to_u64(prev_mac);
|
|
|
|
bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]];
|
|
hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
|
|
if (ether_addr_equal_64bits(entry->mac, prev_mac)) {
|
|
mlx4_en_uc_steer_release(priv, entry->mac,
|
|
qpn, entry->reg_id);
|
|
mlx4_unregister_mac(dev, priv->port,
|
|
prev_mac_u64);
|
|
hlist_del_rcu(&entry->hlist);
|
|
synchronize_rcu();
|
|
memcpy(entry->mac, new_mac, ETH_ALEN);
|
|
entry->reg_id = 0;
|
|
mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX];
|
|
hlist_add_head_rcu(&entry->hlist,
|
|
&priv->mac_hash[mac_hash]);
|
|
mlx4_register_mac(dev, priv->port, new_mac_u64);
|
|
err = mlx4_en_uc_steer_add(priv, new_mac,
|
|
&qpn,
|
|
&entry->reg_id);
|
|
if (err)
|
|
return err;
|
|
if (priv->tunnel_reg_id) {
|
|
mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
|
|
priv->tunnel_reg_id = 0;
|
|
}
|
|
err = mlx4_en_tunnel_steer_add(priv, new_mac, qpn,
|
|
&priv->tunnel_reg_id);
|
|
return err;
|
|
}
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
|
|
}
|
|
|
|
static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv,
|
|
unsigned char new_mac[ETH_ALEN + 2])
|
|
{
|
|
int err = 0;
|
|
|
|
if (priv->port_up) {
|
|
/* Remove old MAC and insert the new one */
|
|
err = mlx4_en_replace_mac(priv, priv->base_qpn,
|
|
new_mac, priv->current_mac);
|
|
if (err)
|
|
en_err(priv, "Failed changing HW MAC address\n");
|
|
} else
|
|
en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
|
|
|
|
if (!err)
|
|
memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac));
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_en_set_mac(struct net_device *dev, void *addr)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct sockaddr *saddr = addr;
|
|
unsigned char new_mac[ETH_ALEN + 2];
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(saddr->sa_data))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
memcpy(new_mac, saddr->sa_data, ETH_ALEN);
|
|
err = mlx4_en_do_set_mac(priv, new_mac);
|
|
if (!err)
|
|
memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
|
|
mutex_unlock(&mdev->state_lock);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_en_clear_list(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_mc_list *tmp, *mc_to_del;
|
|
|
|
list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) {
|
|
list_del(&mc_to_del->list);
|
|
kfree(mc_to_del);
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_cache_mclist(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct netdev_hw_addr *ha;
|
|
struct mlx4_en_mc_list *tmp;
|
|
|
|
mlx4_en_clear_list(dev);
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
|
|
if (!tmp) {
|
|
mlx4_en_clear_list(dev);
|
|
return;
|
|
}
|
|
memcpy(tmp->addr, ha->addr, ETH_ALEN);
|
|
list_add_tail(&tmp->list, &priv->mc_list);
|
|
}
|
|
}
|
|
|
|
static void update_mclist_flags(struct mlx4_en_priv *priv,
|
|
struct list_head *dst,
|
|
struct list_head *src)
|
|
{
|
|
struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc;
|
|
bool found;
|
|
|
|
/* Find all the entries that should be removed from dst,
|
|
* These are the entries that are not found in src
|
|
*/
|
|
list_for_each_entry(dst_tmp, dst, list) {
|
|
found = false;
|
|
list_for_each_entry(src_tmp, src, list) {
|
|
if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found)
|
|
dst_tmp->action = MCLIST_REM;
|
|
}
|
|
|
|
/* Add entries that exist in src but not in dst
|
|
* mark them as need to add
|
|
*/
|
|
list_for_each_entry(src_tmp, src, list) {
|
|
found = false;
|
|
list_for_each_entry(dst_tmp, dst, list) {
|
|
if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
|
|
dst_tmp->action = MCLIST_NONE;
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
new_mc = kmemdup(src_tmp,
|
|
sizeof(struct mlx4_en_mc_list),
|
|
GFP_KERNEL);
|
|
if (!new_mc)
|
|
return;
|
|
|
|
new_mc->action = MCLIST_ADD;
|
|
list_add_tail(&new_mc->list, dst);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_set_rx_mode(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
|
|
if (!priv->port_up)
|
|
return;
|
|
|
|
queue_work(priv->mdev->workqueue, &priv->rx_mode_task);
|
|
}
|
|
|
|
static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
|
|
struct mlx4_en_dev *mdev)
|
|
{
|
|
int err = 0;
|
|
|
|
if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
|
|
if (netif_msg_rx_status(priv))
|
|
en_warn(priv, "Entering promiscuous mode\n");
|
|
priv->flags |= MLX4_EN_FLAG_PROMISC;
|
|
|
|
/* Enable promiscouos mode */
|
|
switch (mdev->dev->caps.steering_mode) {
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED:
|
|
err = mlx4_flow_steer_promisc_add(mdev->dev,
|
|
priv->port,
|
|
priv->base_qpn,
|
|
MLX4_FS_ALL_DEFAULT);
|
|
if (err)
|
|
en_err(priv, "Failed enabling promiscuous mode\n");
|
|
priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_B0:
|
|
err = mlx4_unicast_promisc_add(mdev->dev,
|
|
priv->base_qpn,
|
|
priv->port);
|
|
if (err)
|
|
en_err(priv, "Failed enabling unicast promiscuous mode\n");
|
|
|
|
/* Add the default qp number as multicast
|
|
* promisc
|
|
*/
|
|
if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
|
|
err = mlx4_multicast_promisc_add(mdev->dev,
|
|
priv->base_qpn,
|
|
priv->port);
|
|
if (err)
|
|
en_err(priv, "Failed enabling multicast promiscuous mode\n");
|
|
priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
|
|
}
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_A0:
|
|
err = mlx4_SET_PORT_qpn_calc(mdev->dev,
|
|
priv->port,
|
|
priv->base_qpn,
|
|
1);
|
|
if (err)
|
|
en_err(priv, "Failed enabling promiscuous mode\n");
|
|
break;
|
|
}
|
|
|
|
/* Disable port multicast filter (unconditionally) */
|
|
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
|
|
0, MLX4_MCAST_DISABLE);
|
|
if (err)
|
|
en_err(priv, "Failed disabling multicast filter\n");
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
|
|
struct mlx4_en_dev *mdev)
|
|
{
|
|
int err = 0;
|
|
|
|
if (netif_msg_rx_status(priv))
|
|
en_warn(priv, "Leaving promiscuous mode\n");
|
|
priv->flags &= ~MLX4_EN_FLAG_PROMISC;
|
|
|
|
/* Disable promiscouos mode */
|
|
switch (mdev->dev->caps.steering_mode) {
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED:
|
|
err = mlx4_flow_steer_promisc_remove(mdev->dev,
|
|
priv->port,
|
|
MLX4_FS_ALL_DEFAULT);
|
|
if (err)
|
|
en_err(priv, "Failed disabling promiscuous mode\n");
|
|
priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_B0:
|
|
err = mlx4_unicast_promisc_remove(mdev->dev,
|
|
priv->base_qpn,
|
|
priv->port);
|
|
if (err)
|
|
en_err(priv, "Failed disabling unicast promiscuous mode\n");
|
|
/* Disable Multicast promisc */
|
|
if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
|
|
err = mlx4_multicast_promisc_remove(mdev->dev,
|
|
priv->base_qpn,
|
|
priv->port);
|
|
if (err)
|
|
en_err(priv, "Failed disabling multicast promiscuous mode\n");
|
|
priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
|
|
}
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_A0:
|
|
err = mlx4_SET_PORT_qpn_calc(mdev->dev,
|
|
priv->port,
|
|
priv->base_qpn, 0);
|
|
if (err)
|
|
en_err(priv, "Failed disabling promiscuous mode\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
|
|
struct net_device *dev,
|
|
struct mlx4_en_dev *mdev)
|
|
{
|
|
struct mlx4_en_mc_list *mclist, *tmp;
|
|
u64 mcast_addr = 0;
|
|
u8 mc_list[16] = {0};
|
|
int err = 0;
|
|
|
|
/* Enable/disable the multicast filter according to IFF_ALLMULTI */
|
|
if (dev->flags & IFF_ALLMULTI) {
|
|
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
|
|
0, MLX4_MCAST_DISABLE);
|
|
if (err)
|
|
en_err(priv, "Failed disabling multicast filter\n");
|
|
|
|
/* Add the default qp number as multicast promisc */
|
|
if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
|
|
switch (mdev->dev->caps.steering_mode) {
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED:
|
|
err = mlx4_flow_steer_promisc_add(mdev->dev,
|
|
priv->port,
|
|
priv->base_qpn,
|
|
MLX4_FS_MC_DEFAULT);
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_B0:
|
|
err = mlx4_multicast_promisc_add(mdev->dev,
|
|
priv->base_qpn,
|
|
priv->port);
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_A0:
|
|
break;
|
|
}
|
|
if (err)
|
|
en_err(priv, "Failed entering multicast promisc mode\n");
|
|
priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
|
|
}
|
|
} else {
|
|
/* Disable Multicast promisc */
|
|
if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
|
|
switch (mdev->dev->caps.steering_mode) {
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED:
|
|
err = mlx4_flow_steer_promisc_remove(mdev->dev,
|
|
priv->port,
|
|
MLX4_FS_MC_DEFAULT);
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_B0:
|
|
err = mlx4_multicast_promisc_remove(mdev->dev,
|
|
priv->base_qpn,
|
|
priv->port);
|
|
break;
|
|
|
|
case MLX4_STEERING_MODE_A0:
|
|
break;
|
|
}
|
|
if (err)
|
|
en_err(priv, "Failed disabling multicast promiscuous mode\n");
|
|
priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
|
|
}
|
|
|
|
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
|
|
0, MLX4_MCAST_DISABLE);
|
|
if (err)
|
|
en_err(priv, "Failed disabling multicast filter\n");
|
|
|
|
/* Flush mcast filter and init it with broadcast address */
|
|
mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
|
|
1, MLX4_MCAST_CONFIG);
|
|
|
|
/* Update multicast list - we cache all addresses so they won't
|
|
* change while HW is updated holding the command semaphor */
|
|
netif_addr_lock_bh(dev);
|
|
mlx4_en_cache_mclist(dev);
|
|
netif_addr_unlock_bh(dev);
|
|
list_for_each_entry(mclist, &priv->mc_list, list) {
|
|
mcast_addr = mlx4_mac_to_u64(mclist->addr);
|
|
mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
|
|
mcast_addr, 0, MLX4_MCAST_CONFIG);
|
|
}
|
|
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
|
|
0, MLX4_MCAST_ENABLE);
|
|
if (err)
|
|
en_err(priv, "Failed enabling multicast filter\n");
|
|
|
|
update_mclist_flags(priv, &priv->curr_list, &priv->mc_list);
|
|
list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
|
|
if (mclist->action == MCLIST_REM) {
|
|
/* detach this address and delete from list */
|
|
memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
|
|
mc_list[5] = priv->port;
|
|
err = mlx4_multicast_detach(mdev->dev,
|
|
&priv->rss_map.indir_qp,
|
|
mc_list,
|
|
MLX4_PROT_ETH,
|
|
mclist->reg_id);
|
|
if (err)
|
|
en_err(priv, "Fail to detach multicast address\n");
|
|
|
|
if (mclist->tunnel_reg_id) {
|
|
err = mlx4_flow_detach(priv->mdev->dev, mclist->tunnel_reg_id);
|
|
if (err)
|
|
en_err(priv, "Failed to detach multicast address\n");
|
|
}
|
|
|
|
/* remove from list */
|
|
list_del(&mclist->list);
|
|
kfree(mclist);
|
|
} else if (mclist->action == MCLIST_ADD) {
|
|
/* attach the address */
|
|
memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
|
|
/* needed for B0 steering support */
|
|
mc_list[5] = priv->port;
|
|
err = mlx4_multicast_attach(mdev->dev,
|
|
&priv->rss_map.indir_qp,
|
|
mc_list,
|
|
priv->port, 0,
|
|
MLX4_PROT_ETH,
|
|
&mclist->reg_id);
|
|
if (err)
|
|
en_err(priv, "Fail to attach multicast address\n");
|
|
|
|
err = mlx4_en_tunnel_steer_add(priv, &mc_list[10], priv->base_qpn,
|
|
&mclist->tunnel_reg_id);
|
|
if (err)
|
|
en_err(priv, "Failed to attach multicast address\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
|
|
struct net_device *dev,
|
|
struct mlx4_en_dev *mdev)
|
|
{
|
|
struct netdev_hw_addr *ha;
|
|
struct mlx4_mac_entry *entry;
|
|
struct hlist_node *tmp;
|
|
bool found;
|
|
u64 mac;
|
|
int err = 0;
|
|
struct hlist_head *bucket;
|
|
unsigned int i;
|
|
int removed = 0;
|
|
u32 prev_flags;
|
|
|
|
/* Note that we do not need to protect our mac_hash traversal with rcu,
|
|
* since all modification code is protected by mdev->state_lock
|
|
*/
|
|
|
|
/* find what to remove */
|
|
for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
|
|
bucket = &priv->mac_hash[i];
|
|
hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
|
|
found = false;
|
|
netdev_for_each_uc_addr(ha, dev) {
|
|
if (ether_addr_equal_64bits(entry->mac,
|
|
ha->addr)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* MAC address of the port is not in uc list */
|
|
if (ether_addr_equal_64bits(entry->mac,
|
|
priv->current_mac))
|
|
found = true;
|
|
|
|
if (!found) {
|
|
mac = mlx4_mac_to_u64(entry->mac);
|
|
mlx4_en_uc_steer_release(priv, entry->mac,
|
|
priv->base_qpn,
|
|
entry->reg_id);
|
|
mlx4_unregister_mac(mdev->dev, priv->port, mac);
|
|
|
|
hlist_del_rcu(&entry->hlist);
|
|
kfree_rcu(entry, rcu);
|
|
en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n",
|
|
entry->mac, priv->port);
|
|
++removed;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* if we didn't remove anything, there is no use in trying to add
|
|
* again once we are in a forced promisc mode state
|
|
*/
|
|
if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed)
|
|
return;
|
|
|
|
prev_flags = priv->flags;
|
|
priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
|
|
|
|
/* find what to add */
|
|
netdev_for_each_uc_addr(ha, dev) {
|
|
found = false;
|
|
bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]];
|
|
hlist_for_each_entry(entry, bucket, hlist) {
|
|
if (ether_addr_equal_64bits(entry->mac, ha->addr)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
|
|
if (!entry) {
|
|
en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n",
|
|
ha->addr, priv->port);
|
|
priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
|
|
break;
|
|
}
|
|
mac = mlx4_mac_to_u64(ha->addr);
|
|
memcpy(entry->mac, ha->addr, ETH_ALEN);
|
|
err = mlx4_register_mac(mdev->dev, priv->port, mac);
|
|
if (err < 0) {
|
|
en_err(priv, "Failed registering MAC %pM on port %d: %d\n",
|
|
ha->addr, priv->port, err);
|
|
kfree(entry);
|
|
priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
|
|
break;
|
|
}
|
|
err = mlx4_en_uc_steer_add(priv, ha->addr,
|
|
&priv->base_qpn,
|
|
&entry->reg_id);
|
|
if (err) {
|
|
en_err(priv, "Failed adding MAC %pM on port %d: %d\n",
|
|
ha->addr, priv->port, err);
|
|
mlx4_unregister_mac(mdev->dev, priv->port, mac);
|
|
kfree(entry);
|
|
priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
|
|
break;
|
|
} else {
|
|
unsigned int mac_hash;
|
|
en_dbg(DRV, priv, "Added MAC %pM on port:%d\n",
|
|
ha->addr, priv->port);
|
|
mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX];
|
|
bucket = &priv->mac_hash[mac_hash];
|
|
hlist_add_head_rcu(&entry->hlist, bucket);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) {
|
|
en_warn(priv, "Forcing promiscuous mode on port:%d\n",
|
|
priv->port);
|
|
} else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) {
|
|
en_warn(priv, "Stop forcing promiscuous mode on port:%d\n",
|
|
priv->port);
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_do_set_rx_mode(struct work_struct *work)
|
|
{
|
|
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
|
|
rx_mode_task);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct net_device *dev = priv->dev;
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
if (!mdev->device_up) {
|
|
en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n");
|
|
goto out;
|
|
}
|
|
if (!priv->port_up) {
|
|
en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n");
|
|
goto out;
|
|
}
|
|
|
|
if (!netif_carrier_ok(dev)) {
|
|
if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
|
|
if (priv->port_state.link_state) {
|
|
priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
|
|
netif_carrier_on(dev);
|
|
en_dbg(LINK, priv, "Link Up\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dev->priv_flags & IFF_UNICAST_FLT)
|
|
mlx4_en_do_uc_filter(priv, dev, mdev);
|
|
|
|
/* Promsicuous mode: disable all filters */
|
|
if ((dev->flags & IFF_PROMISC) ||
|
|
(priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) {
|
|
mlx4_en_set_promisc_mode(priv, mdev);
|
|
goto out;
|
|
}
|
|
|
|
/* Not in promiscuous mode */
|
|
if (priv->flags & MLX4_EN_FLAG_PROMISC)
|
|
mlx4_en_clear_promisc_mode(priv, mdev);
|
|
|
|
mlx4_en_do_multicast(priv, dev, mdev);
|
|
out:
|
|
mutex_unlock(&mdev->state_lock);
|
|
}
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void mlx4_en_netpoll(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_cq *cq;
|
|
int i;
|
|
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
cq = priv->rx_cq[i];
|
|
napi_schedule(&cq->napi);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void mlx4_en_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
int i;
|
|
|
|
if (netif_msg_timer(priv))
|
|
en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
|
|
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
|
|
continue;
|
|
en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
|
|
i, priv->tx_ring[i]->qpn, priv->tx_ring[i]->cqn,
|
|
priv->tx_ring[i]->cons, priv->tx_ring[i]->prod);
|
|
}
|
|
|
|
priv->port_stats.tx_timeout++;
|
|
en_dbg(DRV, priv, "Scheduling watchdog\n");
|
|
queue_work(mdev->workqueue, &priv->watchdog_task);
|
|
}
|
|
|
|
|
|
static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
|
|
spin_lock_bh(&priv->stats_lock);
|
|
memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats));
|
|
spin_unlock_bh(&priv->stats_lock);
|
|
|
|
return &priv->ret_stats;
|
|
}
|
|
|
|
static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
|
|
{
|
|
struct mlx4_en_cq *cq;
|
|
int i;
|
|
|
|
/* If we haven't received a specific coalescing setting
|
|
* (module param), we set the moderation parameters as follows:
|
|
* - moder_cnt is set to the number of mtu sized packets to
|
|
* satisfy our coalescing target.
|
|
* - moder_time is set to a fixed value.
|
|
*/
|
|
priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
|
|
priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
|
|
priv->tx_frames = MLX4_EN_TX_COAL_PKTS;
|
|
priv->tx_usecs = MLX4_EN_TX_COAL_TIME;
|
|
en_dbg(INTR, priv, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
|
|
priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
|
|
|
|
/* Setup cq moderation params */
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
cq = priv->rx_cq[i];
|
|
cq->moder_cnt = priv->rx_frames;
|
|
cq->moder_time = priv->rx_usecs;
|
|
priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
|
|
priv->last_moder_packets[i] = 0;
|
|
priv->last_moder_bytes[i] = 0;
|
|
}
|
|
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
cq = priv->tx_cq[i];
|
|
cq->moder_cnt = priv->tx_frames;
|
|
cq->moder_time = priv->tx_usecs;
|
|
}
|
|
|
|
/* Reset auto-moderation params */
|
|
priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
|
|
priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
|
|
priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
|
|
priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
|
|
priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
|
|
priv->adaptive_rx_coal = 1;
|
|
priv->last_moder_jiffies = 0;
|
|
priv->last_moder_tx_packets = 0;
|
|
}
|
|
|
|
static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
|
|
{
|
|
unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
|
|
struct mlx4_en_cq *cq;
|
|
unsigned long packets;
|
|
unsigned long rate;
|
|
unsigned long avg_pkt_size;
|
|
unsigned long rx_packets;
|
|
unsigned long rx_bytes;
|
|
unsigned long rx_pkt_diff;
|
|
int moder_time;
|
|
int ring, err;
|
|
|
|
if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
|
|
return;
|
|
|
|
for (ring = 0; ring < priv->rx_ring_num; ring++) {
|
|
spin_lock_bh(&priv->stats_lock);
|
|
rx_packets = priv->rx_ring[ring]->packets;
|
|
rx_bytes = priv->rx_ring[ring]->bytes;
|
|
spin_unlock_bh(&priv->stats_lock);
|
|
|
|
rx_pkt_diff = ((unsigned long) (rx_packets -
|
|
priv->last_moder_packets[ring]));
|
|
packets = rx_pkt_diff;
|
|
rate = packets * HZ / period;
|
|
avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
|
|
priv->last_moder_bytes[ring])) / packets : 0;
|
|
|
|
/* Apply auto-moderation only when packet rate
|
|
* exceeds a rate that it matters */
|
|
if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) &&
|
|
avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
|
|
if (rate < priv->pkt_rate_low)
|
|
moder_time = priv->rx_usecs_low;
|
|
else if (rate > priv->pkt_rate_high)
|
|
moder_time = priv->rx_usecs_high;
|
|
else
|
|
moder_time = (rate - priv->pkt_rate_low) *
|
|
(priv->rx_usecs_high - priv->rx_usecs_low) /
|
|
(priv->pkt_rate_high - priv->pkt_rate_low) +
|
|
priv->rx_usecs_low;
|
|
} else {
|
|
moder_time = priv->rx_usecs_low;
|
|
}
|
|
|
|
if (moder_time != priv->last_moder_time[ring]) {
|
|
priv->last_moder_time[ring] = moder_time;
|
|
cq = priv->rx_cq[ring];
|
|
cq->moder_time = moder_time;
|
|
cq->moder_cnt = priv->rx_frames;
|
|
err = mlx4_en_set_cq_moder(priv, cq);
|
|
if (err)
|
|
en_err(priv, "Failed modifying moderation for cq:%d\n",
|
|
ring);
|
|
}
|
|
priv->last_moder_packets[ring] = rx_packets;
|
|
priv->last_moder_bytes[ring] = rx_bytes;
|
|
}
|
|
|
|
priv->last_moder_jiffies = jiffies;
|
|
}
|
|
|
|
static void mlx4_en_do_get_stats(struct work_struct *work)
|
|
{
|
|
struct delayed_work *delay = to_delayed_work(work);
|
|
struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
|
|
stats_task);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
int err;
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
if (mdev->device_up) {
|
|
if (priv->port_up) {
|
|
err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
|
|
if (err)
|
|
en_dbg(HW, priv, "Could not update stats\n");
|
|
|
|
mlx4_en_auto_moderation(priv);
|
|
}
|
|
|
|
queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
|
|
}
|
|
if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
|
|
mlx4_en_do_set_mac(priv, priv->current_mac);
|
|
mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
|
|
}
|
|
mutex_unlock(&mdev->state_lock);
|
|
}
|
|
|
|
/* mlx4_en_service_task - Run service task for tasks that needed to be done
|
|
* periodically
|
|
*/
|
|
static void mlx4_en_service_task(struct work_struct *work)
|
|
{
|
|
struct delayed_work *delay = to_delayed_work(work);
|
|
struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
|
|
service_task);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
if (mdev->device_up) {
|
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
|
|
mlx4_en_ptp_overflow_check(mdev);
|
|
|
|
mlx4_en_recover_from_oom(priv);
|
|
queue_delayed_work(mdev->workqueue, &priv->service_task,
|
|
SERVICE_TASK_DELAY);
|
|
}
|
|
mutex_unlock(&mdev->state_lock);
|
|
}
|
|
|
|
static void mlx4_en_linkstate(struct work_struct *work)
|
|
{
|
|
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
|
|
linkstate_task);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
int linkstate = priv->link_state;
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
/* If observable port state changed set carrier state and
|
|
* report to system log */
|
|
if (priv->last_link_state != linkstate) {
|
|
if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
|
|
en_info(priv, "Link Down\n");
|
|
netif_carrier_off(priv->dev);
|
|
} else {
|
|
en_info(priv, "Link Up\n");
|
|
netif_carrier_on(priv->dev);
|
|
}
|
|
}
|
|
priv->last_link_state = linkstate;
|
|
mutex_unlock(&mdev->state_lock);
|
|
}
|
|
|
|
static int mlx4_en_init_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
|
|
{
|
|
struct mlx4_en_rx_ring *ring = priv->rx_ring[ring_idx];
|
|
int numa_node = priv->mdev->dev->numa_node;
|
|
int ret = 0;
|
|
|
|
if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL))
|
|
return -ENOMEM;
|
|
|
|
ret = cpumask_set_cpu_local_first(ring_idx, numa_node,
|
|
ring->affinity_mask);
|
|
if (ret)
|
|
free_cpumask_var(ring->affinity_mask);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void mlx4_en_free_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
|
|
{
|
|
free_cpumask_var(priv->rx_ring[ring_idx]->affinity_mask);
|
|
}
|
|
|
|
int mlx4_en_start_port(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_en_cq *cq;
|
|
struct mlx4_en_tx_ring *tx_ring;
|
|
int rx_index = 0;
|
|
int tx_index = 0;
|
|
int err = 0;
|
|
int i;
|
|
int j;
|
|
u8 mc_list[16] = {0};
|
|
|
|
if (priv->port_up) {
|
|
en_dbg(DRV, priv, "start port called while port already up\n");
|
|
return 0;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&priv->mc_list);
|
|
INIT_LIST_HEAD(&priv->curr_list);
|
|
INIT_LIST_HEAD(&priv->ethtool_list);
|
|
memset(&priv->ethtool_rules[0], 0,
|
|
sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES);
|
|
|
|
/* Calculate Rx buf size */
|
|
dev->mtu = min(dev->mtu, priv->max_mtu);
|
|
mlx4_en_calc_rx_buf(dev);
|
|
en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
|
|
|
|
/* Configure rx cq's and rings */
|
|
err = mlx4_en_activate_rx_rings(priv);
|
|
if (err) {
|
|
en_err(priv, "Failed to activate RX rings\n");
|
|
return err;
|
|
}
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
cq = priv->rx_cq[i];
|
|
|
|
mlx4_en_cq_init_lock(cq);
|
|
|
|
err = mlx4_en_init_affinity_hint(priv, i);
|
|
if (err) {
|
|
en_err(priv, "Failed preparing IRQ affinity hint\n");
|
|
goto cq_err;
|
|
}
|
|
|
|
err = mlx4_en_activate_cq(priv, cq, i);
|
|
if (err) {
|
|
en_err(priv, "Failed activating Rx CQ\n");
|
|
mlx4_en_free_affinity_hint(priv, i);
|
|
goto cq_err;
|
|
}
|
|
|
|
for (j = 0; j < cq->size; j++) {
|
|
struct mlx4_cqe *cqe = NULL;
|
|
|
|
cqe = mlx4_en_get_cqe(cq->buf, j, priv->cqe_size) +
|
|
priv->cqe_factor;
|
|
cqe->owner_sr_opcode = MLX4_CQE_OWNER_MASK;
|
|
}
|
|
|
|
err = mlx4_en_set_cq_moder(priv, cq);
|
|
if (err) {
|
|
en_err(priv, "Failed setting cq moderation parameters\n");
|
|
mlx4_en_deactivate_cq(priv, cq);
|
|
mlx4_en_free_affinity_hint(priv, i);
|
|
goto cq_err;
|
|
}
|
|
mlx4_en_arm_cq(priv, cq);
|
|
priv->rx_ring[i]->cqn = cq->mcq.cqn;
|
|
++rx_index;
|
|
}
|
|
|
|
/* Set qp number */
|
|
en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
|
|
err = mlx4_en_get_qp(priv);
|
|
if (err) {
|
|
en_err(priv, "Failed getting eth qp\n");
|
|
goto cq_err;
|
|
}
|
|
mdev->mac_removed[priv->port] = 0;
|
|
|
|
err = mlx4_en_config_rss_steer(priv);
|
|
if (err) {
|
|
en_err(priv, "Failed configuring rss steering\n");
|
|
goto mac_err;
|
|
}
|
|
|
|
err = mlx4_en_create_drop_qp(priv);
|
|
if (err)
|
|
goto rss_err;
|
|
|
|
/* Configure tx cq's and rings */
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
/* Configure cq */
|
|
cq = priv->tx_cq[i];
|
|
err = mlx4_en_activate_cq(priv, cq, i);
|
|
if (err) {
|
|
en_err(priv, "Failed allocating Tx CQ\n");
|
|
goto tx_err;
|
|
}
|
|
err = mlx4_en_set_cq_moder(priv, cq);
|
|
if (err) {
|
|
en_err(priv, "Failed setting cq moderation parameters\n");
|
|
mlx4_en_deactivate_cq(priv, cq);
|
|
goto tx_err;
|
|
}
|
|
en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
|
|
cq->buf->wqe_index = cpu_to_be16(0xffff);
|
|
|
|
/* Configure ring */
|
|
tx_ring = priv->tx_ring[i];
|
|
err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn,
|
|
i / priv->num_tx_rings_p_up);
|
|
if (err) {
|
|
en_err(priv, "Failed allocating Tx ring\n");
|
|
mlx4_en_deactivate_cq(priv, cq);
|
|
goto tx_err;
|
|
}
|
|
tx_ring->tx_queue = netdev_get_tx_queue(dev, i);
|
|
|
|
/* Arm CQ for TX completions */
|
|
mlx4_en_arm_cq(priv, cq);
|
|
|
|
/* Set initial ownership of all Tx TXBBs to SW (1) */
|
|
for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
|
|
*((u32 *) (tx_ring->buf + j)) = 0xffffffff;
|
|
++tx_index;
|
|
}
|
|
|
|
/* Configure port */
|
|
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
|
|
priv->rx_skb_size + ETH_FCS_LEN,
|
|
priv->prof->tx_pause,
|
|
priv->prof->tx_ppp,
|
|
priv->prof->rx_pause,
|
|
priv->prof->rx_ppp);
|
|
if (err) {
|
|
en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
|
|
priv->port, err);
|
|
goto tx_err;
|
|
}
|
|
/* Set default qp number */
|
|
err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
|
|
if (err) {
|
|
en_err(priv, "Failed setting default qp numbers\n");
|
|
goto tx_err;
|
|
}
|
|
|
|
if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
|
|
err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
|
|
if (err) {
|
|
en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
|
|
err);
|
|
goto tx_err;
|
|
}
|
|
}
|
|
|
|
/* Init port */
|
|
en_dbg(HW, priv, "Initializing port\n");
|
|
err = mlx4_INIT_PORT(mdev->dev, priv->port);
|
|
if (err) {
|
|
en_err(priv, "Failed Initializing port\n");
|
|
goto tx_err;
|
|
}
|
|
|
|
/* Attach rx QP to bradcast address */
|
|
memset(&mc_list[10], 0xff, ETH_ALEN);
|
|
mc_list[5] = priv->port; /* needed for B0 steering support */
|
|
if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
|
|
priv->port, 0, MLX4_PROT_ETH,
|
|
&priv->broadcast_id))
|
|
mlx4_warn(mdev, "Failed Attaching Broadcast\n");
|
|
|
|
/* Must redo promiscuous mode setup. */
|
|
priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
|
|
|
|
/* Schedule multicast task to populate multicast list */
|
|
queue_work(mdev->workqueue, &priv->rx_mode_task);
|
|
|
|
mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
|
|
|
|
#ifdef CONFIG_MLX4_EN_VXLAN
|
|
if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
|
|
vxlan_get_rx_port(dev);
|
|
#endif
|
|
priv->port_up = true;
|
|
netif_tx_start_all_queues(dev);
|
|
netif_device_attach(dev);
|
|
|
|
return 0;
|
|
|
|
tx_err:
|
|
while (tx_index--) {
|
|
mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[tx_index]);
|
|
mlx4_en_deactivate_cq(priv, priv->tx_cq[tx_index]);
|
|
}
|
|
mlx4_en_destroy_drop_qp(priv);
|
|
rss_err:
|
|
mlx4_en_release_rss_steer(priv);
|
|
mac_err:
|
|
mlx4_en_put_qp(priv);
|
|
cq_err:
|
|
while (rx_index--) {
|
|
mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
|
|
mlx4_en_free_affinity_hint(priv, i);
|
|
}
|
|
for (i = 0; i < priv->rx_ring_num; i++)
|
|
mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
|
|
|
|
return err; /* need to close devices */
|
|
}
|
|
|
|
|
|
void mlx4_en_stop_port(struct net_device *dev, int detach)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_en_mc_list *mclist, *tmp;
|
|
struct ethtool_flow_id *flow, *tmp_flow;
|
|
int i;
|
|
u8 mc_list[16] = {0};
|
|
|
|
if (!priv->port_up) {
|
|
en_dbg(DRV, priv, "stop port called while port already down\n");
|
|
return;
|
|
}
|
|
|
|
/* close port*/
|
|
mlx4_CLOSE_PORT(mdev->dev, priv->port);
|
|
|
|
/* Synchronize with tx routine */
|
|
netif_tx_lock_bh(dev);
|
|
if (detach)
|
|
netif_device_detach(dev);
|
|
netif_tx_stop_all_queues(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
|
|
netif_tx_disable(dev);
|
|
|
|
/* Set port as not active */
|
|
priv->port_up = false;
|
|
|
|
/* Promsicuous mode */
|
|
if (mdev->dev->caps.steering_mode ==
|
|
MLX4_STEERING_MODE_DEVICE_MANAGED) {
|
|
priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
|
|
MLX4_EN_FLAG_MC_PROMISC);
|
|
mlx4_flow_steer_promisc_remove(mdev->dev,
|
|
priv->port,
|
|
MLX4_FS_ALL_DEFAULT);
|
|
mlx4_flow_steer_promisc_remove(mdev->dev,
|
|
priv->port,
|
|
MLX4_FS_MC_DEFAULT);
|
|
} else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
|
|
priv->flags &= ~MLX4_EN_FLAG_PROMISC;
|
|
|
|
/* Disable promiscouos mode */
|
|
mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
|
|
priv->port);
|
|
|
|
/* Disable Multicast promisc */
|
|
if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
|
|
mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
|
|
priv->port);
|
|
priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
|
|
}
|
|
}
|
|
|
|
/* Detach All multicasts */
|
|
memset(&mc_list[10], 0xff, ETH_ALEN);
|
|
mc_list[5] = priv->port; /* needed for B0 steering support */
|
|
mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
|
|
MLX4_PROT_ETH, priv->broadcast_id);
|
|
list_for_each_entry(mclist, &priv->curr_list, list) {
|
|
memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
|
|
mc_list[5] = priv->port;
|
|
mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
|
|
mc_list, MLX4_PROT_ETH, mclist->reg_id);
|
|
if (mclist->tunnel_reg_id)
|
|
mlx4_flow_detach(mdev->dev, mclist->tunnel_reg_id);
|
|
}
|
|
mlx4_en_clear_list(dev);
|
|
list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
|
|
list_del(&mclist->list);
|
|
kfree(mclist);
|
|
}
|
|
|
|
/* Flush multicast filter */
|
|
mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
|
|
|
|
/* Remove flow steering rules for the port*/
|
|
if (mdev->dev->caps.steering_mode ==
|
|
MLX4_STEERING_MODE_DEVICE_MANAGED) {
|
|
ASSERT_RTNL();
|
|
list_for_each_entry_safe(flow, tmp_flow,
|
|
&priv->ethtool_list, list) {
|
|
mlx4_flow_detach(mdev->dev, flow->id);
|
|
list_del(&flow->list);
|
|
}
|
|
}
|
|
|
|
mlx4_en_destroy_drop_qp(priv);
|
|
|
|
/* Free TX Rings */
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[i]);
|
|
mlx4_en_deactivate_cq(priv, priv->tx_cq[i]);
|
|
}
|
|
msleep(10);
|
|
|
|
for (i = 0; i < priv->tx_ring_num; i++)
|
|
mlx4_en_free_tx_buf(dev, priv->tx_ring[i]);
|
|
|
|
/* Free RSS qps */
|
|
mlx4_en_release_rss_steer(priv);
|
|
|
|
/* Unregister Mac address for the port */
|
|
mlx4_en_put_qp(priv);
|
|
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN))
|
|
mdev->mac_removed[priv->port] = 1;
|
|
|
|
/* Free RX Rings */
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
struct mlx4_en_cq *cq = priv->rx_cq[i];
|
|
|
|
local_bh_disable();
|
|
while (!mlx4_en_cq_lock_napi(cq)) {
|
|
pr_info("CQ %d locked\n", i);
|
|
mdelay(1);
|
|
}
|
|
local_bh_enable();
|
|
|
|
while (test_bit(NAPI_STATE_SCHED, &cq->napi.state))
|
|
msleep(1);
|
|
mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
|
|
mlx4_en_deactivate_cq(priv, cq);
|
|
|
|
mlx4_en_free_affinity_hint(priv, i);
|
|
}
|
|
}
|
|
|
|
static void mlx4_en_restart(struct work_struct *work)
|
|
{
|
|
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
|
|
watchdog_task);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct net_device *dev = priv->dev;
|
|
|
|
en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
if (priv->port_up) {
|
|
mlx4_en_stop_port(dev, 1);
|
|
if (mlx4_en_start_port(dev))
|
|
en_err(priv, "Failed restarting port %d\n", priv->port);
|
|
}
|
|
mutex_unlock(&mdev->state_lock);
|
|
}
|
|
|
|
static void mlx4_en_clear_stats(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
int i;
|
|
|
|
if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
|
|
en_dbg(HW, priv, "Failed dumping statistics\n");
|
|
|
|
memset(&priv->stats, 0, sizeof(priv->stats));
|
|
memset(&priv->pstats, 0, sizeof(priv->pstats));
|
|
memset(&priv->pkstats, 0, sizeof(priv->pkstats));
|
|
memset(&priv->port_stats, 0, sizeof(priv->port_stats));
|
|
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
priv->tx_ring[i]->bytes = 0;
|
|
priv->tx_ring[i]->packets = 0;
|
|
priv->tx_ring[i]->tx_csum = 0;
|
|
}
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
priv->rx_ring[i]->bytes = 0;
|
|
priv->rx_ring[i]->packets = 0;
|
|
priv->rx_ring[i]->csum_ok = 0;
|
|
priv->rx_ring[i]->csum_none = 0;
|
|
}
|
|
}
|
|
|
|
static int mlx4_en_open(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
int err = 0;
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
|
|
if (!mdev->device_up) {
|
|
en_err(priv, "Cannot open - device down/disabled\n");
|
|
err = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
/* Reset HW statistics and SW counters */
|
|
mlx4_en_clear_stats(dev);
|
|
|
|
err = mlx4_en_start_port(dev);
|
|
if (err)
|
|
en_err(priv, "Failed starting port:%d\n", priv->port);
|
|
|
|
out:
|
|
mutex_unlock(&mdev->state_lock);
|
|
return err;
|
|
}
|
|
|
|
|
|
static int mlx4_en_close(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
|
|
en_dbg(IFDOWN, priv, "Close port called\n");
|
|
|
|
mutex_lock(&mdev->state_lock);
|
|
|
|
mlx4_en_stop_port(dev, 0);
|
|
netif_carrier_off(dev);
|
|
|
|
mutex_unlock(&mdev->state_lock);
|
|
return 0;
|
|
}
|
|
|
|
void mlx4_en_free_resources(struct mlx4_en_priv *priv)
|
|
{
|
|
int i;
|
|
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
free_irq_cpu_rmap(priv->dev->rx_cpu_rmap);
|
|
priv->dev->rx_cpu_rmap = NULL;
|
|
#endif
|
|
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
if (priv->tx_ring && priv->tx_ring[i])
|
|
mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
|
|
if (priv->tx_cq && priv->tx_cq[i])
|
|
mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
|
|
}
|
|
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
if (priv->rx_ring[i])
|
|
mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
|
|
priv->prof->rx_ring_size, priv->stride);
|
|
if (priv->rx_cq[i])
|
|
mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
|
|
}
|
|
|
|
if (priv->base_tx_qpn) {
|
|
mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num);
|
|
priv->base_tx_qpn = 0;
|
|
}
|
|
}
|
|
|
|
int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
|
|
{
|
|
struct mlx4_en_port_profile *prof = priv->prof;
|
|
int i;
|
|
int err;
|
|
int node;
|
|
|
|
err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &priv->base_tx_qpn);
|
|
if (err) {
|
|
en_err(priv, "failed reserving range for TX rings\n");
|
|
return err;
|
|
}
|
|
|
|
/* Create tx Rings */
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
node = cpu_to_node(i % num_online_cpus());
|
|
if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
|
|
prof->tx_ring_size, i, TX, node))
|
|
goto err;
|
|
|
|
if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i],
|
|
priv->base_tx_qpn + i,
|
|
prof->tx_ring_size, TXBB_SIZE,
|
|
node, i))
|
|
goto err;
|
|
}
|
|
|
|
/* Create rx Rings */
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
node = cpu_to_node(i % num_online_cpus());
|
|
if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
|
|
prof->rx_ring_size, i, RX, node))
|
|
goto err;
|
|
|
|
if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
|
|
prof->rx_ring_size, priv->stride,
|
|
node))
|
|
goto err;
|
|
}
|
|
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
if (priv->mdev->dev->caps.comp_pool) {
|
|
priv->dev->rx_cpu_rmap = alloc_irq_cpu_rmap(priv->mdev->dev->caps.comp_pool);
|
|
if (!priv->dev->rx_cpu_rmap)
|
|
goto err;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
err:
|
|
en_err(priv, "Failed to allocate NIC resources\n");
|
|
for (i = 0; i < priv->rx_ring_num; i++) {
|
|
if (priv->rx_ring[i])
|
|
mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
|
|
prof->rx_ring_size,
|
|
priv->stride);
|
|
if (priv->rx_cq[i])
|
|
mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
|
|
}
|
|
for (i = 0; i < priv->tx_ring_num; i++) {
|
|
if (priv->tx_ring[i])
|
|
mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
|
|
if (priv->tx_cq[i])
|
|
mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
|
|
}
|
|
return -ENOMEM;
|
|
}
|
|
|
|
|
|
void mlx4_en_destroy_netdev(struct net_device *dev)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
|
|
en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
|
|
|
|
/* Unregister device - this will close the port if it was up */
|
|
if (priv->registered)
|
|
unregister_netdev(dev);
|
|
|
|
if (priv->allocated)
|
|
mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
|
|
|
|
cancel_delayed_work(&priv->stats_task);
|
|
cancel_delayed_work(&priv->service_task);
|
|
/* flush any pending task for this netdev */
|
|
flush_workqueue(mdev->workqueue);
|
|
|
|
/* Detach the netdev so tasks would not attempt to access it */
|
|
mutex_lock(&mdev->state_lock);
|
|
mdev->pndev[priv->port] = NULL;
|
|
mutex_unlock(&mdev->state_lock);
|
|
|
|
mlx4_en_free_resources(priv);
|
|
|
|
kfree(priv->tx_ring);
|
|
kfree(priv->tx_cq);
|
|
|
|
free_netdev(dev);
|
|
}
|
|
|
|
static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
int err = 0;
|
|
|
|
en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
|
|
dev->mtu, new_mtu);
|
|
|
|
if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) {
|
|
en_err(priv, "Bad MTU size:%d.\n", new_mtu);
|
|
return -EPERM;
|
|
}
|
|
dev->mtu = new_mtu;
|
|
|
|
if (netif_running(dev)) {
|
|
mutex_lock(&mdev->state_lock);
|
|
if (!mdev->device_up) {
|
|
/* NIC is probably restarting - let watchdog task reset
|
|
* the port */
|
|
en_dbg(DRV, priv, "Change MTU called with card down!?\n");
|
|
} else {
|
|
mlx4_en_stop_port(dev, 1);
|
|
err = mlx4_en_start_port(dev);
|
|
if (err) {
|
|
en_err(priv, "Failed restarting port:%d\n",
|
|
priv->port);
|
|
queue_work(mdev->workqueue, &priv->watchdog_task);
|
|
}
|
|
}
|
|
mutex_unlock(&mdev->state_lock);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct hwtstamp_config config;
|
|
|
|
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
|
|
return -EFAULT;
|
|
|
|
/* reserved for future extensions */
|
|
if (config.flags)
|
|
return -EINVAL;
|
|
|
|
/* device doesn't support time stamping */
|
|
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
|
|
return -EINVAL;
|
|
|
|
/* TX HW timestamp */
|
|
switch (config.tx_type) {
|
|
case HWTSTAMP_TX_OFF:
|
|
case HWTSTAMP_TX_ON:
|
|
break;
|
|
default:
|
|
return -ERANGE;
|
|
}
|
|
|
|
/* RX HW timestamp */
|
|
switch (config.rx_filter) {
|
|
case HWTSTAMP_FILTER_NONE:
|
|
break;
|
|
case HWTSTAMP_FILTER_ALL:
|
|
case HWTSTAMP_FILTER_SOME:
|
|
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
|
|
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
|
|
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
|
|
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
|
|
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
|
|
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
|
|
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
|
|
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
|
|
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
|
|
case HWTSTAMP_FILTER_PTP_V2_EVENT:
|
|
case HWTSTAMP_FILTER_PTP_V2_SYNC:
|
|
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
|
|
config.rx_filter = HWTSTAMP_FILTER_ALL;
|
|
break;
|
|
default:
|
|
return -ERANGE;
|
|
}
|
|
|
|
if (mlx4_en_timestamp_config(dev, config.tx_type, config.rx_filter)) {
|
|
config.tx_type = HWTSTAMP_TX_OFF;
|
|
config.rx_filter = HWTSTAMP_FILTER_NONE;
|
|
}
|
|
|
|
return copy_to_user(ifr->ifr_data, &config,
|
|
sizeof(config)) ? -EFAULT : 0;
|
|
}
|
|
|
|
static int mlx4_en_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
|
|
return copy_to_user(ifr->ifr_data, &priv->hwtstamp_config,
|
|
sizeof(priv->hwtstamp_config)) ? -EFAULT : 0;
|
|
}
|
|
|
|
static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
switch (cmd) {
|
|
case SIOCSHWTSTAMP:
|
|
return mlx4_en_hwtstamp_set(dev, ifr);
|
|
case SIOCGHWTSTAMP:
|
|
return mlx4_en_hwtstamp_get(dev, ifr);
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static int mlx4_en_set_features(struct net_device *netdev,
|
|
netdev_features_t features)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(netdev);
|
|
|
|
if (features & NETIF_F_LOOPBACK)
|
|
priv->ctrl_flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK);
|
|
else
|
|
priv->ctrl_flags &=
|
|
cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK);
|
|
|
|
mlx4_en_update_loopback_state(netdev, features);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac)
|
|
{
|
|
struct mlx4_en_priv *en_priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = en_priv->mdev;
|
|
u64 mac_u64 = mlx4_mac_to_u64(mac);
|
|
|
|
if (!is_valid_ether_addr(mac))
|
|
return -EINVAL;
|
|
|
|
return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);
|
|
}
|
|
|
|
static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos)
|
|
{
|
|
struct mlx4_en_priv *en_priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = en_priv->mdev;
|
|
|
|
return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos);
|
|
}
|
|
|
|
static int mlx4_en_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
|
|
{
|
|
struct mlx4_en_priv *en_priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = en_priv->mdev;
|
|
|
|
return mlx4_set_vf_spoofchk(mdev->dev, en_priv->port, vf, setting);
|
|
}
|
|
|
|
static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf)
|
|
{
|
|
struct mlx4_en_priv *en_priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = en_priv->mdev;
|
|
|
|
return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf);
|
|
}
|
|
|
|
static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state)
|
|
{
|
|
struct mlx4_en_priv *en_priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = en_priv->mdev;
|
|
|
|
return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
|
|
}
|
|
|
|
#define PORT_ID_BYTE_LEN 8
|
|
static int mlx4_en_get_phys_port_id(struct net_device *dev,
|
|
struct netdev_phys_port_id *ppid)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_dev *mdev = priv->mdev->dev;
|
|
int i;
|
|
u64 phys_port_id = mdev->caps.phys_port_id[priv->port];
|
|
|
|
if (!phys_port_id)
|
|
return -EOPNOTSUPP;
|
|
|
|
ppid->id_len = sizeof(phys_port_id);
|
|
for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) {
|
|
ppid->id[i] = phys_port_id & 0xff;
|
|
phys_port_id >>= 8;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_MLX4_EN_VXLAN
|
|
static void mlx4_en_add_vxlan_offloads(struct work_struct *work)
|
|
{
|
|
int ret;
|
|
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
|
|
vxlan_add_task);
|
|
|
|
ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
|
|
VXLAN_STEER_BY_OUTER_MAC, 1);
|
|
out:
|
|
if (ret) {
|
|
en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* set offloads */
|
|
priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
|
|
NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL;
|
|
priv->dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
|
|
priv->dev->features |= NETIF_F_GSO_UDP_TUNNEL;
|
|
}
|
|
|
|
static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
|
|
{
|
|
int ret;
|
|
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
|
|
vxlan_del_task);
|
|
/* unset offloads */
|
|
priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
|
|
NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL);
|
|
priv->dev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL;
|
|
priv->dev->features &= ~NETIF_F_GSO_UDP_TUNNEL;
|
|
|
|
ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
|
|
VXLAN_STEER_BY_OUTER_MAC, 0);
|
|
if (ret)
|
|
en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
|
|
|
|
priv->vxlan_port = 0;
|
|
}
|
|
|
|
static void mlx4_en_add_vxlan_port(struct net_device *dev,
|
|
sa_family_t sa_family, __be16 port)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
__be16 current_port;
|
|
|
|
if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
|
|
return;
|
|
|
|
if (sa_family == AF_INET6)
|
|
return;
|
|
|
|
current_port = priv->vxlan_port;
|
|
if (current_port && current_port != port) {
|
|
en_warn(priv, "vxlan port %d configured, can't add port %d\n",
|
|
ntohs(current_port), ntohs(port));
|
|
return;
|
|
}
|
|
|
|
priv->vxlan_port = port;
|
|
queue_work(priv->mdev->workqueue, &priv->vxlan_add_task);
|
|
}
|
|
|
|
static void mlx4_en_del_vxlan_port(struct net_device *dev,
|
|
sa_family_t sa_family, __be16 port)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
__be16 current_port;
|
|
|
|
if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
|
|
return;
|
|
|
|
if (sa_family == AF_INET6)
|
|
return;
|
|
|
|
current_port = priv->vxlan_port;
|
|
if (current_port != port) {
|
|
en_dbg(DRV, priv, "vxlan port %d isn't configured, ignoring\n", ntohs(port));
|
|
return;
|
|
}
|
|
|
|
queue_work(priv->mdev->workqueue, &priv->vxlan_del_task);
|
|
}
|
|
|
|
static netdev_features_t mlx4_en_features_check(struct sk_buff *skb,
|
|
struct net_device *dev,
|
|
netdev_features_t features)
|
|
{
|
|
return vxlan_features_check(skb, features);
|
|
}
|
|
#endif
|
|
|
|
static const struct net_device_ops mlx4_netdev_ops = {
|
|
.ndo_open = mlx4_en_open,
|
|
.ndo_stop = mlx4_en_close,
|
|
.ndo_start_xmit = mlx4_en_xmit,
|
|
.ndo_select_queue = mlx4_en_select_queue,
|
|
.ndo_get_stats = mlx4_en_get_stats,
|
|
.ndo_set_rx_mode = mlx4_en_set_rx_mode,
|
|
.ndo_set_mac_address = mlx4_en_set_mac,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_change_mtu = mlx4_en_change_mtu,
|
|
.ndo_do_ioctl = mlx4_en_ioctl,
|
|
.ndo_tx_timeout = mlx4_en_tx_timeout,
|
|
.ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = mlx4_en_netpoll,
|
|
#endif
|
|
.ndo_set_features = mlx4_en_set_features,
|
|
.ndo_setup_tc = mlx4_en_setup_tc,
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
.ndo_rx_flow_steer = mlx4_en_filter_rfs,
|
|
#endif
|
|
#ifdef CONFIG_NET_RX_BUSY_POLL
|
|
.ndo_busy_poll = mlx4_en_low_latency_recv,
|
|
#endif
|
|
.ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
|
|
#ifdef CONFIG_MLX4_EN_VXLAN
|
|
.ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
|
|
.ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
|
|
.ndo_features_check = mlx4_en_features_check,
|
|
#endif
|
|
};
|
|
|
|
static const struct net_device_ops mlx4_netdev_ops_master = {
|
|
.ndo_open = mlx4_en_open,
|
|
.ndo_stop = mlx4_en_close,
|
|
.ndo_start_xmit = mlx4_en_xmit,
|
|
.ndo_select_queue = mlx4_en_select_queue,
|
|
.ndo_get_stats = mlx4_en_get_stats,
|
|
.ndo_set_rx_mode = mlx4_en_set_rx_mode,
|
|
.ndo_set_mac_address = mlx4_en_set_mac,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_change_mtu = mlx4_en_change_mtu,
|
|
.ndo_tx_timeout = mlx4_en_tx_timeout,
|
|
.ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
|
|
.ndo_set_vf_mac = mlx4_en_set_vf_mac,
|
|
.ndo_set_vf_vlan = mlx4_en_set_vf_vlan,
|
|
.ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk,
|
|
.ndo_set_vf_link_state = mlx4_en_set_vf_link_state,
|
|
.ndo_get_vf_config = mlx4_en_get_vf_config,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = mlx4_en_netpoll,
|
|
#endif
|
|
.ndo_set_features = mlx4_en_set_features,
|
|
.ndo_setup_tc = mlx4_en_setup_tc,
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
.ndo_rx_flow_steer = mlx4_en_filter_rfs,
|
|
#endif
|
|
.ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
|
|
#ifdef CONFIG_MLX4_EN_VXLAN
|
|
.ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
|
|
.ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
|
|
.ndo_features_check = mlx4_en_features_check,
|
|
#endif
|
|
};
|
|
|
|
int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
|
|
struct mlx4_en_port_profile *prof)
|
|
{
|
|
struct net_device *dev;
|
|
struct mlx4_en_priv *priv;
|
|
int i;
|
|
int err;
|
|
u64 mac_u64;
|
|
|
|
dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
|
|
MAX_TX_RINGS, MAX_RX_RINGS);
|
|
if (dev == NULL)
|
|
return -ENOMEM;
|
|
|
|
netif_set_real_num_tx_queues(dev, prof->tx_ring_num);
|
|
netif_set_real_num_rx_queues(dev, prof->rx_ring_num);
|
|
|
|
SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev);
|
|
dev->dev_port = port - 1;
|
|
|
|
/*
|
|
* Initialize driver private data
|
|
*/
|
|
|
|
priv = netdev_priv(dev);
|
|
memset(priv, 0, sizeof(struct mlx4_en_priv));
|
|
priv->dev = dev;
|
|
priv->mdev = mdev;
|
|
priv->ddev = &mdev->pdev->dev;
|
|
priv->prof = prof;
|
|
priv->port = port;
|
|
priv->port_up = false;
|
|
priv->flags = prof->flags;
|
|
priv->pflags = MLX4_EN_PRIV_FLAGS_BLUEFLAME;
|
|
priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
|
|
MLX4_WQE_CTRL_SOLICITED);
|
|
priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
|
|
priv->tx_ring_num = prof->tx_ring_num;
|
|
priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK;
|
|
|
|
priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring *) * MAX_TX_RINGS,
|
|
GFP_KERNEL);
|
|
if (!priv->tx_ring) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq *) * MAX_TX_RINGS,
|
|
GFP_KERNEL);
|
|
if (!priv->tx_cq) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
priv->rx_ring_num = prof->rx_ring_num;
|
|
priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0;
|
|
priv->cqe_size = mdev->dev->caps.cqe_size;
|
|
priv->mac_index = -1;
|
|
priv->msg_enable = MLX4_EN_MSG_LEVEL;
|
|
spin_lock_init(&priv->stats_lock);
|
|
INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
|
|
INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
|
|
INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
|
|
INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
|
|
INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
|
|
#ifdef CONFIG_MLX4_EN_VXLAN
|
|
INIT_WORK(&priv->vxlan_add_task, mlx4_en_add_vxlan_offloads);
|
|
INIT_WORK(&priv->vxlan_del_task, mlx4_en_del_vxlan_offloads);
|
|
#endif
|
|
#ifdef CONFIG_MLX4_EN_DCB
|
|
if (!mlx4_is_slave(priv->mdev->dev)) {
|
|
if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
|
|
dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
|
|
} else {
|
|
en_info(priv, "enabling only PFC DCB ops\n");
|
|
dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)
|
|
INIT_HLIST_HEAD(&priv->mac_hash[i]);
|
|
|
|
/* Query for default mac and max mtu */
|
|
priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
|
|
|
|
/* Set default MAC */
|
|
dev->addr_len = ETH_ALEN;
|
|
mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
|
|
if (!is_valid_ether_addr(dev->dev_addr)) {
|
|
if (mlx4_is_slave(priv->mdev->dev)) {
|
|
eth_hw_addr_random(dev);
|
|
en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr);
|
|
mac_u64 = mlx4_mac_to_u64(dev->dev_addr);
|
|
mdev->dev->caps.def_mac[priv->port] = mac_u64;
|
|
} else {
|
|
en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
|
|
priv->port, dev->dev_addr);
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac));
|
|
|
|
priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
|
|
DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
|
|
err = mlx4_en_alloc_resources(priv);
|
|
if (err)
|
|
goto out;
|
|
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
INIT_LIST_HEAD(&priv->filters);
|
|
spin_lock_init(&priv->filters_lock);
|
|
#endif
|
|
|
|
/* Initialize time stamping config */
|
|
priv->hwtstamp_config.flags = 0;
|
|
priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF;
|
|
priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
|
|
|
|
/* Allocate page for receive rings */
|
|
err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
|
|
MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);
|
|
if (err) {
|
|
en_err(priv, "Failed to allocate page for rx qps\n");
|
|
goto out;
|
|
}
|
|
priv->allocated = 1;
|
|
|
|
/*
|
|
* Initialize netdev entry points
|
|
*/
|
|
if (mlx4_is_master(priv->mdev->dev))
|
|
dev->netdev_ops = &mlx4_netdev_ops_master;
|
|
else
|
|
dev->netdev_ops = &mlx4_netdev_ops;
|
|
dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
|
|
netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
|
|
netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
|
|
|
|
dev->ethtool_ops = &mlx4_en_ethtool_ops;
|
|
|
|
/*
|
|
* Set driver features
|
|
*/
|
|
dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
|
|
if (mdev->LSO_support)
|
|
dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
|
|
|
|
dev->vlan_features = dev->hw_features;
|
|
|
|
dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH;
|
|
dev->features = dev->hw_features | NETIF_F_HIGHDMA |
|
|
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
|
|
NETIF_F_HW_VLAN_CTAG_FILTER;
|
|
dev->hw_features |= NETIF_F_LOOPBACK;
|
|
|
|
if (mdev->dev->caps.steering_mode ==
|
|
MLX4_STEERING_MODE_DEVICE_MANAGED)
|
|
dev->hw_features |= NETIF_F_NTUPLE;
|
|
|
|
if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
|
|
dev->priv_flags |= IFF_UNICAST_FLT;
|
|
|
|
mdev->pndev[port] = dev;
|
|
|
|
netif_carrier_off(dev);
|
|
mlx4_en_set_default_moderation(priv);
|
|
|
|
en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
|
|
en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
|
|
|
|
mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
|
|
|
|
/* Configure port */
|
|
mlx4_en_calc_rx_buf(dev);
|
|
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
|
|
priv->rx_skb_size + ETH_FCS_LEN,
|
|
prof->tx_pause, prof->tx_ppp,
|
|
prof->rx_pause, prof->rx_ppp);
|
|
if (err) {
|
|
en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
|
|
priv->port, err);
|
|
goto out;
|
|
}
|
|
|
|
if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
|
|
err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
|
|
if (err) {
|
|
en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
|
|
err);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Init port */
|
|
en_warn(priv, "Initializing port\n");
|
|
err = mlx4_INIT_PORT(mdev->dev, priv->port);
|
|
if (err) {
|
|
en_err(priv, "Failed Initializing port\n");
|
|
goto out;
|
|
}
|
|
queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
|
|
|
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
|
|
queue_delayed_work(mdev->workqueue, &priv->service_task,
|
|
SERVICE_TASK_DELAY);
|
|
|
|
err = register_netdev(dev);
|
|
if (err) {
|
|
en_err(priv, "Netdev registration failed for port %d\n", port);
|
|
goto out;
|
|
}
|
|
|
|
priv->registered = 1;
|
|
|
|
return 0;
|
|
|
|
out:
|
|
mlx4_en_destroy_netdev(dev);
|
|
return err;
|
|
}
|
|
|