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3565 lines
96 KiB
3565 lines
96 KiB
/* |
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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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|
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#include <linux/bpf.h> |
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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/vxlan.h> |
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#include <net/devlink.h> |
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|
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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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|
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#include "mlx4_en.h" |
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#include "en_port.h" |
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|
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#define MLX4_EN_MAX_XDP_MTU ((int)(PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) - \ |
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XDP_PACKET_HEADROOM - \ |
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SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))) |
|
|
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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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|
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if (up && up != MLX4_EN_NUM_UP_HIGH) |
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return -EINVAL; |
|
|
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netdev_set_num_tc(dev, up); |
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netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); |
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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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#ifdef CONFIG_MLX4_EN_DCB |
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if (!mlx4_is_slave(priv->mdev->dev)) { |
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if (up) { |
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if (priv->dcbx_cap) |
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priv->flags |= MLX4_EN_FLAG_DCB_ENABLED; |
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} else { |
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priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED; |
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priv->cee_config.pfc_state = false; |
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} |
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} |
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#endif /* CONFIG_MLX4_EN_DCB */ |
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|
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return 0; |
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} |
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|
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int mlx4_en_alloc_tx_queue_per_tc(struct net_device *dev, u8 tc) |
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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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struct mlx4_en_port_profile new_prof; |
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struct mlx4_en_priv *tmp; |
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int total_count; |
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int port_up = 0; |
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int err = 0; |
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|
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tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); |
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if (!tmp) |
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return -ENOMEM; |
|
|
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mutex_lock(&mdev->state_lock); |
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memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); |
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new_prof.num_up = (tc == 0) ? MLX4_EN_NUM_UP_LOW : |
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MLX4_EN_NUM_UP_HIGH; |
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new_prof.tx_ring_num[TX] = new_prof.num_tx_rings_p_up * |
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new_prof.num_up; |
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total_count = new_prof.tx_ring_num[TX] + new_prof.tx_ring_num[TX_XDP]; |
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if (total_count > MAX_TX_RINGS) { |
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err = -EINVAL; |
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en_err(priv, |
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"Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n", |
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total_count, MAX_TX_RINGS); |
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goto out; |
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} |
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err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); |
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if (err) |
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goto out; |
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|
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if (priv->port_up) { |
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port_up = 1; |
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mlx4_en_stop_port(dev, 1); |
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} |
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|
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mlx4_en_safe_replace_resources(priv, tmp); |
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if (port_up) { |
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err = mlx4_en_start_port(dev); |
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if (err) { |
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en_err(priv, "Failed starting port for setup TC\n"); |
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goto out; |
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} |
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} |
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|
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err = mlx4_en_setup_tc(dev, tc); |
|
out: |
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mutex_unlock(&mdev->state_lock); |
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kfree(tmp); |
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return err; |
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} |
|
|
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static int __mlx4_en_setup_tc(struct net_device *dev, enum tc_setup_type type, |
|
void *type_data) |
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{ |
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struct tc_mqprio_qopt *mqprio = type_data; |
|
|
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if (type != TC_SETUP_QDISC_MQPRIO) |
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return -EOPNOTSUPP; |
|
|
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if (mqprio->num_tc && mqprio->num_tc != MLX4_EN_NUM_UP_HIGH) |
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return -EINVAL; |
|
|
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mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; |
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|
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return mlx4_en_alloc_tx_queue_per_tc(dev, mqprio->num_tc); |
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} |
|
|
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#ifdef CONFIG_RFS_ACCEL |
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|
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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; |
|
__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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|
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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; |
|
default: |
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return MLX4_NET_TRANS_RULE_NUM; |
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} |
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}; |
|
|
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/* Must not acquire state_lock, as its corresponding work_sync |
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* is done under it. |
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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; |
|
__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) { |
|
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); |
|
if (rc) |
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en_err(priv, "Error attaching flow. err = %d\n", rc); |
|
|
|
ignore: |
|
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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unsigned long l; |
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int bucket_idx; |
|
|
|
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]; |
|
} |
|
|
|
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; |
|
|
|
filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC); |
|
if (!filter) |
|
return NULL; |
|
|
|
filter->priv = priv; |
|
filter->rxq_index = rxq_index; |
|
INIT_WORK(&filter->work, mlx4_en_filter_work); |
|
|
|
filter->src_ip = src_ip; |
|
filter->dst_ip = dst_ip; |
|
filter->ip_proto = ip_proto; |
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filter->src_port = src_port; |
|
filter->dst_port = dst_port; |
|
|
|
filter->flow_id = flow_id; |
|
|
|
filter->id = priv->last_filter_id++ % RPS_NO_FILTER; |
|
|
|
list_add_tail(&filter->next, &priv->filters); |
|
hlist_add_head(&filter->filter_chain, |
|
filter_hash_bucket(priv, src_ip, dst_ip, src_port, |
|
dst_port)); |
|
|
|
return filter; |
|
} |
|
|
|
static void mlx4_en_filter_free(struct mlx4_en_filter *filter) |
|
{ |
|
struct mlx4_en_priv *priv = filter->priv; |
|
int rc; |
|
|
|
list_del(&filter->next); |
|
|
|
rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id); |
|
if (rc && rc != -ENOENT) |
|
en_err(priv, "Error detaching flow. rc = %d\n", rc); |
|
|
|
kfree(filter); |
|
} |
|
|
|
static inline struct mlx4_en_filter * |
|
mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip, |
|
u8 ip_proto, __be16 src_port, __be16 dst_port) |
|
{ |
|
struct mlx4_en_filter *filter; |
|
struct mlx4_en_filter *ret = NULL; |
|
|
|
hlist_for_each_entry(filter, |
|
filter_hash_bucket(priv, src_ip, dst_ip, |
|
src_port, dst_port), |
|
filter_chain) { |
|
if (filter->src_ip == src_ip && |
|
filter->dst_ip == dst_ip && |
|
filter->ip_proto == ip_proto && |
|
filter->src_port == src_port && |
|
filter->dst_port == dst_port) { |
|
ret = filter; |
|
break; |
|
} |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int |
|
mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb, |
|
u16 rxq_index, u32 flow_id) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(net_dev); |
|
struct mlx4_en_filter *filter; |
|
const struct iphdr *ip; |
|
const __be16 *ports; |
|
u8 ip_proto; |
|
__be32 src_ip; |
|
__be32 dst_ip; |
|
__be16 src_port; |
|
__be16 dst_port; |
|
int nhoff = skb_network_offset(skb); |
|
int ret = 0; |
|
|
|
if (skb->protocol != htons(ETH_P_IP)) |
|
return -EPROTONOSUPPORT; |
|
|
|
ip = (const struct iphdr *)(skb->data + nhoff); |
|
if (ip_is_fragment(ip)) |
|
return -EPROTONOSUPPORT; |
|
|
|
if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP)) |
|
return -EPROTONOSUPPORT; |
|
ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl); |
|
|
|
ip_proto = ip->protocol; |
|
src_ip = ip->saddr; |
|
dst_ip = ip->daddr; |
|
src_port = ports[0]; |
|
dst_port = ports[1]; |
|
|
|
spin_lock_bh(&priv->filters_lock); |
|
filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto, |
|
src_port, dst_port); |
|
if (filter) { |
|
if (filter->rxq_index == rxq_index) |
|
goto out; |
|
|
|
filter->rxq_index = rxq_index; |
|
} else { |
|
filter = mlx4_en_filter_alloc(priv, rxq_index, |
|
src_ip, dst_ip, ip_proto, |
|
src_port, dst_port, flow_id); |
|
if (!filter) { |
|
ret = -ENOMEM; |
|
goto err; |
|
} |
|
} |
|
|
|
queue_work(priv->mdev->workqueue, &filter->work); |
|
|
|
out: |
|
ret = filter->id; |
|
err: |
|
spin_unlock_bh(&priv->filters_lock); |
|
|
|
return ret; |
|
} |
|
|
|
void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv) |
|
{ |
|
struct mlx4_en_filter *filter, *tmp; |
|
LIST_HEAD(del_list); |
|
|
|
spin_lock_bh(&priv->filters_lock); |
|
list_for_each_entry_safe(filter, tmp, &priv->filters, next) { |
|
list_move(&filter->next, &del_list); |
|
hlist_del(&filter->filter_chain); |
|
} |
|
spin_unlock_bh(&priv->filters_lock); |
|
|
|
list_for_each_entry_safe(filter, tmp, &del_list, next) { |
|
cancel_work_sync(&filter->work); |
|
mlx4_en_filter_free(filter); |
|
} |
|
} |
|
|
|
static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv) |
|
{ |
|
struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL; |
|
LIST_HEAD(del_list); |
|
int i = 0; |
|
|
|
spin_lock_bh(&priv->filters_lock); |
|
list_for_each_entry_safe(filter, tmp, &priv->filters, next) { |
|
if (i > MLX4_EN_FILTER_EXPIRY_QUOTA) |
|
break; |
|
|
|
if (filter->activated && |
|
!work_pending(&filter->work) && |
|
rps_may_expire_flow(priv->dev, |
|
filter->rxq_index, filter->flow_id, |
|
filter->id)) { |
|
list_move(&filter->next, &del_list); |
|
hlist_del(&filter->filter_chain); |
|
} else |
|
last_filter = filter; |
|
|
|
i++; |
|
} |
|
|
|
if (last_filter && (&last_filter->next != priv->filters.next)) |
|
list_move(&priv->filters, &last_filter->next); |
|
|
|
spin_unlock_bh(&priv->filters_lock); |
|
|
|
list_for_each_entry_safe(filter, tmp, &del_list, next) |
|
mlx4_en_filter_free(filter); |
|
} |
|
#endif |
|
|
|
static int mlx4_en_vlan_rx_add_vid(struct net_device *dev, |
|
__be16 proto, u16 vid) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = priv->mdev; |
|
int err; |
|
int idx; |
|
|
|
en_dbg(HW, priv, "adding VLAN:%d\n", vid); |
|
|
|
set_bit(vid, priv->active_vlans); |
|
|
|
/* Add VID to port VLAN filter */ |
|
mutex_lock(&mdev->state_lock); |
|
if (mdev->device_up && priv->port_up) { |
|
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
|
if (err) { |
|
en_err(priv, "Failed configuring VLAN filter\n"); |
|
goto out; |
|
} |
|
} |
|
err = mlx4_register_vlan(mdev->dev, priv->port, vid, &idx); |
|
if (err) |
|
en_dbg(HW, priv, "Failed adding vlan %d\n", vid); |
|
|
|
out: |
|
mutex_unlock(&mdev->state_lock); |
|
return err; |
|
} |
|
|
|
static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, |
|
__be16 proto, u16 vid) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = priv->mdev; |
|
int err = 0; |
|
|
|
en_dbg(HW, priv, "Killing VID:%d\n", vid); |
|
|
|
clear_bit(vid, priv->active_vlans); |
|
|
|
/* Remove VID from port VLAN filter */ |
|
mutex_lock(&mdev->state_lock); |
|
mlx4_unregister_vlan(mdev->dev, priv->port, vid); |
|
|
|
if (mdev->device_up && priv->port_up) { |
|
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
|
if (err) |
|
en_err(priv, "Failed configuring VLAN filter\n"); |
|
} |
|
mutex_unlock(&mdev->state_lock); |
|
|
|
return err; |
|
} |
|
|
|
static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac) |
|
{ |
|
int i; |
|
for (i = ETH_ALEN - 1; i >= 0; --i) { |
|
dst_mac[i] = src_mac & 0xff; |
|
src_mac >>= 8; |
|
} |
|
memset(&dst_mac[ETH_ALEN], 0, 2); |
|
} |
|
|
|
|
|
static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *addr, |
|
int qpn, u64 *reg_id) |
|
{ |
|
int err; |
|
|
|
if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || |
|
priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) |
|
return 0; /* do nothing */ |
|
|
|
err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn, |
|
MLX4_DOMAIN_NIC, reg_id); |
|
if (err) { |
|
en_err(priv, "failed to add vxlan steering rule, err %d\n", err); |
|
return err; |
|
} |
|
en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id); |
|
return 0; |
|
} |
|
|
|
|
|
static int mlx4_en_uc_steer_add(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; |
|
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; |
|
int index = 0; |
|
int err = 0; |
|
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; |
|
} |
|
|
|
en_info(priv, "Steering Mode %d\n", dev->caps.steering_mode); |
|
|
|
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, MLX4_RESERVE_A0_QP, |
|
MLX4_RES_USAGE_DRIVER); |
|
en_dbg(DRV, priv, "Reserved qp %d\n", *qpn); |
|
if (err) { |
|
en_err(priv, "Failed to reserve qp for mac registration\n"); |
|
mlx4_unregister_mac(dev, priv->port, mac); |
|
return err; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
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; |
|
|
|
if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { |
|
u64 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 { |
|
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 void mlx4_en_update_user_mac(struct mlx4_en_priv *priv, |
|
unsigned char new_mac[ETH_ALEN + 2]) |
|
{ |
|
struct mlx4_en_dev *mdev = priv->mdev; |
|
int err; |
|
|
|
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_USER_MAC_EN)) |
|
return; |
|
|
|
err = mlx4_SET_PORT_user_mac(mdev->dev, priv->port, new_mac); |
|
if (err) |
|
en_err(priv, "Failed to pass user MAC(%pM) to Firmware for port %d, with error %d\n", |
|
new_mac, priv->port, err); |
|
} |
|
|
|
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) |
|
goto out; |
|
|
|
memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN); |
|
mlx4_en_update_user_mac(priv, new_mac); |
|
out: |
|
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); |
|
} |
|
|
|
static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv *priv) |
|
{ |
|
u64 reg_id; |
|
int err = 0; |
|
int *qpn = &priv->base_qpn; |
|
struct mlx4_mac_entry *entry; |
|
|
|
err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id); |
|
if (err) |
|
return 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); |
|
return err; |
|
} |
|
|
|
static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv *priv) |
|
{ |
|
u64 mac; |
|
unsigned int i; |
|
int qpn = priv->base_qpn; |
|
struct hlist_head *bucket; |
|
struct hlist_node *tmp; |
|
struct mlx4_mac_entry *entry; |
|
|
|
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(priv->mdev->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; |
|
} |
|
} |
|
|
|
static void mlx4_en_tx_timeout(struct net_device *dev, unsigned int txqueue) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = priv->mdev; |
|
struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][txqueue]; |
|
|
|
if (netif_msg_timer(priv)) |
|
en_warn(priv, "Tx timeout called on port:%d\n", priv->port); |
|
|
|
en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n", |
|
txqueue, tx_ring->qpn, tx_ring->sp_cqn, |
|
tx_ring->cons, tx_ring->prod); |
|
|
|
priv->port_stats.tx_timeout++; |
|
if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state)) { |
|
en_dbg(DRV, priv, "Scheduling port restart\n"); |
|
queue_work(mdev->workqueue, &priv->restart_task); |
|
} |
|
} |
|
|
|
|
|
static void |
|
mlx4_en_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
|
|
spin_lock_bh(&priv->stats_lock); |
|
mlx4_en_fold_software_stats(dev); |
|
netdev_stats_to_stats64(stats, &dev->stats); |
|
spin_unlock_bh(&priv->stats_lock); |
|
} |
|
|
|
static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) |
|
{ |
|
struct mlx4_en_cq *cq; |
|
int i, t; |
|
|
|
/* 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 coalescing 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 (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
for (i = 0; i < priv->tx_ring_num[t]; i++) { |
|
cq = priv->tx_cq[t][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); |
|
u32 pkt_rate_high, pkt_rate_low; |
|
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; |
|
|
|
pkt_rate_low = READ_ONCE(priv->pkt_rate_low); |
|
pkt_rate_high = READ_ONCE(priv->pkt_rate_high); |
|
|
|
for (ring = 0; ring < priv->rx_ring_num; ring++) { |
|
rx_packets = READ_ONCE(priv->rx_ring[ring]->packets); |
|
rx_bytes = READ_ONCE(priv->rx_ring[ring]->bytes); |
|
|
|
rx_pkt_diff = rx_packets - priv->last_moder_packets[ring]; |
|
packets = rx_pkt_diff; |
|
rate = packets * HZ / period; |
|
avg_pkt_size = packets ? (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 <= pkt_rate_low) |
|
moder_time = priv->rx_usecs_low; |
|
else if (rate >= pkt_rate_high) |
|
moder_time = priv->rx_usecs_high; |
|
else |
|
moder_time = (rate - pkt_rate_low) * |
|
(priv->rx_usecs_high - priv->rx_usecs_low) / |
|
(pkt_rate_high - pkt_rate_low) + |
|
priv->rx_usecs_low; |
|
} else { |
|
moder_time = priv->rx_usecs_low; |
|
} |
|
|
|
cq = priv->rx_cq[ring]; |
|
if (moder_time != priv->last_moder_time[ring] || |
|
cq->moder_cnt != priv->rx_frames) { |
|
priv->last_moder_time[ring] = moder_time; |
|
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; |
|
|
|
if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL)) |
|
return -ENOMEM; |
|
|
|
cpumask_set_cpu(cpumask_local_spread(ring_idx, numa_node), |
|
ring->affinity_mask); |
|
return 0; |
|
} |
|
|
|
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); |
|
} |
|
|
|
static void mlx4_en_init_recycle_ring(struct mlx4_en_priv *priv, |
|
int tx_ring_idx) |
|
{ |
|
struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX_XDP][tx_ring_idx]; |
|
int rr_index = tx_ring_idx; |
|
|
|
tx_ring->free_tx_desc = mlx4_en_recycle_tx_desc; |
|
tx_ring->recycle_ring = priv->rx_ring[rr_index]; |
|
en_dbg(DRV, priv, "Set tx_ring[%d][%d]->recycle_ring = rx_ring[%d]\n", |
|
TX_XDP, tx_ring_idx, rr_index); |
|
} |
|
|
|
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 err = 0; |
|
int i, t; |
|
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]; |
|
|
|
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; |
|
|
|
priv->counter_index = |
|
mlx4_get_default_counter_index(mdev->dev, priv->port); |
|
|
|
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 (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
u8 num_tx_rings_p_up = t == TX ? |
|
priv->num_tx_rings_p_up : priv->tx_ring_num[t]; |
|
|
|
for (i = 0; i < priv->tx_ring_num[t]; i++) { |
|
/* Configure cq */ |
|
cq = priv->tx_cq[t][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[t][i]; |
|
err = mlx4_en_activate_tx_ring(priv, tx_ring, |
|
cq->mcq.cqn, |
|
i / num_tx_rings_p_up); |
|
if (err) { |
|
en_err(priv, "Failed allocating Tx ring\n"); |
|
mlx4_en_deactivate_cq(priv, cq); |
|
goto tx_err; |
|
} |
|
clear_bit(MLX4_EN_TX_RING_STATE_RECOVERING, &tx_ring->state); |
|
if (t != TX_XDP) { |
|
tx_ring->tx_queue = netdev_get_tx_queue(dev, i); |
|
tx_ring->recycle_ring = NULL; |
|
|
|
/* Arm CQ for TX completions */ |
|
mlx4_en_arm_cq(priv, cq); |
|
|
|
} else { |
|
mlx4_en_init_tx_xdp_ring_descs(priv, tx_ring); |
|
mlx4_en_init_recycle_ring(priv, i); |
|
/* XDP TX CQ should never be armed */ |
|
} |
|
|
|
/* 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; |
|
} |
|
} |
|
|
|
/* 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; |
|
} |
|
|
|
err = mlx4_SET_PORT_user_mtu(mdev->dev, priv->port, dev->mtu); |
|
if (err) { |
|
en_err(priv, "Failed to pass user MTU(%d) to Firmware for port %d, with error %d\n", |
|
dev->mtu, 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; |
|
} |
|
|
|
/* Set Unicast and VXLAN steering rules */ |
|
if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0 && |
|
mlx4_en_set_rss_steer_rules(priv)) |
|
mlx4_warn(mdev, "Failed setting steering rules\n"); |
|
|
|
/* Attach rx QP to bradcast address */ |
|
eth_broadcast_addr(&mc_list[10]); |
|
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); |
|
|
|
if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) |
|
udp_tunnel_nic_reset_ntf(dev); |
|
|
|
priv->port_up = true; |
|
|
|
/* Process all completions if exist to prevent |
|
* the queues freezing if they are full |
|
*/ |
|
for (i = 0; i < priv->rx_ring_num; i++) { |
|
local_bh_disable(); |
|
napi_schedule(&priv->rx_cq[i]->napi); |
|
local_bh_enable(); |
|
} |
|
|
|
clear_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state); |
|
netif_tx_start_all_queues(dev); |
|
netif_device_attach(dev); |
|
|
|
return 0; |
|
|
|
tx_err: |
|
if (t == MLX4_EN_NUM_TX_TYPES) { |
|
t--; |
|
i = priv->tx_ring_num[t]; |
|
} |
|
while (t >= 0) { |
|
while (i--) { |
|
mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]); |
|
mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]); |
|
} |
|
if (!t--) |
|
break; |
|
i = priv->tx_ring_num[t]; |
|
} |
|
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, rx_index); |
|
} |
|
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, t; |
|
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); |
|
|
|
spin_lock_bh(&priv->stats_lock); |
|
mlx4_en_fold_software_stats(dev); |
|
/* Set port as not active */ |
|
priv->port_up = false; |
|
spin_unlock_bh(&priv->stats_lock); |
|
|
|
priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev); |
|
|
|
/* 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 */ |
|
eth_broadcast_addr(&mc_list[10]); |
|
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 (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
for (i = 0; i < priv->tx_ring_num[t]; i++) { |
|
mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]); |
|
mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]); |
|
} |
|
} |
|
msleep(10); |
|
|
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) |
|
for (i = 0; i < priv->tx_ring_num[t]; i++) |
|
mlx4_en_free_tx_buf(dev, priv->tx_ring[t][i]); |
|
|
|
if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0) |
|
mlx4_en_delete_rss_steer_rules(priv); |
|
|
|
/* 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]; |
|
|
|
napi_synchronize(&cq->napi); |
|
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, |
|
restart_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); |
|
|
|
rtnl_lock(); |
|
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); |
|
rtnl_unlock(); |
|
} |
|
|
|
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; |
|
struct mlx4_en_tx_ring **tx_ring; |
|
int i; |
|
|
|
if (!mlx4_is_slave(mdev->dev)) |
|
if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) |
|
en_dbg(HW, priv, "Failed dumping statistics\n"); |
|
|
|
memset(&priv->pkstats, 0, sizeof(priv->pkstats)); |
|
memset(&priv->port_stats, 0, sizeof(priv->port_stats)); |
|
memset(&priv->rx_flowstats, 0, sizeof(priv->rx_flowstats)); |
|
memset(&priv->tx_flowstats, 0, sizeof(priv->tx_flowstats)); |
|
memset(&priv->rx_priority_flowstats, 0, |
|
sizeof(priv->rx_priority_flowstats)); |
|
memset(&priv->tx_priority_flowstats, 0, |
|
sizeof(priv->tx_priority_flowstats)); |
|
memset(&priv->pf_stats, 0, sizeof(priv->pf_stats)); |
|
|
|
tx_ring = priv->tx_ring[TX]; |
|
for (i = 0; i < priv->tx_ring_num[TX]; i++) { |
|
tx_ring[i]->bytes = 0; |
|
tx_ring[i]->packets = 0; |
|
tx_ring[i]->tx_csum = 0; |
|
tx_ring[i]->tx_dropped = 0; |
|
tx_ring[i]->queue_stopped = 0; |
|
tx_ring[i]->wake_queue = 0; |
|
tx_ring[i]->tso_packets = 0; |
|
tx_ring[i]->xmit_more = 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; |
|
priv->rx_ring[i]->csum_complete = 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; |
|
} |
|
|
|
static void mlx4_en_free_resources(struct mlx4_en_priv *priv) |
|
{ |
|
int i, t; |
|
|
|
#ifdef CONFIG_RFS_ACCEL |
|
priv->dev->rx_cpu_rmap = NULL; |
|
#endif |
|
|
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
for (i = 0; i < priv->tx_ring_num[t]; i++) { |
|
if (priv->tx_ring[t] && priv->tx_ring[t][i]) |
|
mlx4_en_destroy_tx_ring(priv, |
|
&priv->tx_ring[t][i]); |
|
if (priv->tx_cq[t] && priv->tx_cq[t][i]) |
|
mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]); |
|
} |
|
kfree(priv->tx_ring[t]); |
|
kfree(priv->tx_cq[t]); |
|
} |
|
|
|
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]); |
|
} |
|
|
|
} |
|
|
|
static int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
|
{ |
|
struct mlx4_en_port_profile *prof = priv->prof; |
|
int i, t; |
|
int node; |
|
|
|
/* Create tx Rings */ |
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
for (i = 0; i < priv->tx_ring_num[t]; i++) { |
|
node = cpu_to_node(i % num_online_cpus()); |
|
if (mlx4_en_create_cq(priv, &priv->tx_cq[t][i], |
|
prof->tx_ring_size, i, t, node)) |
|
goto err; |
|
|
|
if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[t][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, i)) |
|
goto err; |
|
|
|
} |
|
|
|
#ifdef CONFIG_RFS_ACCEL |
|
priv->dev->rx_cpu_rmap = mlx4_get_cpu_rmap(priv->mdev->dev, priv->port); |
|
#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 (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
for (i = 0; i < priv->tx_ring_num[t]; i++) { |
|
if (priv->tx_ring[t][i]) |
|
mlx4_en_destroy_tx_ring(priv, |
|
&priv->tx_ring[t][i]); |
|
if (priv->tx_cq[t][i]) |
|
mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]); |
|
} |
|
} |
|
return -ENOMEM; |
|
} |
|
|
|
|
|
static int mlx4_en_copy_priv(struct mlx4_en_priv *dst, |
|
struct mlx4_en_priv *src, |
|
struct mlx4_en_port_profile *prof) |
|
{ |
|
int t; |
|
|
|
memcpy(&dst->hwtstamp_config, &prof->hwtstamp_config, |
|
sizeof(dst->hwtstamp_config)); |
|
dst->num_tx_rings_p_up = prof->num_tx_rings_p_up; |
|
dst->rx_ring_num = prof->rx_ring_num; |
|
dst->flags = prof->flags; |
|
dst->mdev = src->mdev; |
|
dst->port = src->port; |
|
dst->dev = src->dev; |
|
dst->prof = prof; |
|
dst->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + |
|
DS_SIZE * MLX4_EN_MAX_RX_FRAGS); |
|
|
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
dst->tx_ring_num[t] = prof->tx_ring_num[t]; |
|
if (!dst->tx_ring_num[t]) |
|
continue; |
|
|
|
dst->tx_ring[t] = kcalloc(MAX_TX_RINGS, |
|
sizeof(struct mlx4_en_tx_ring *), |
|
GFP_KERNEL); |
|
if (!dst->tx_ring[t]) |
|
goto err_free_tx; |
|
|
|
dst->tx_cq[t] = kcalloc(MAX_TX_RINGS, |
|
sizeof(struct mlx4_en_cq *), |
|
GFP_KERNEL); |
|
if (!dst->tx_cq[t]) { |
|
kfree(dst->tx_ring[t]); |
|
goto err_free_tx; |
|
} |
|
} |
|
|
|
return 0; |
|
|
|
err_free_tx: |
|
while (t--) { |
|
kfree(dst->tx_ring[t]); |
|
kfree(dst->tx_cq[t]); |
|
} |
|
return -ENOMEM; |
|
} |
|
|
|
static void mlx4_en_update_priv(struct mlx4_en_priv *dst, |
|
struct mlx4_en_priv *src) |
|
{ |
|
int t; |
|
memcpy(dst->rx_ring, src->rx_ring, |
|
sizeof(struct mlx4_en_rx_ring *) * src->rx_ring_num); |
|
memcpy(dst->rx_cq, src->rx_cq, |
|
sizeof(struct mlx4_en_cq *) * src->rx_ring_num); |
|
memcpy(&dst->hwtstamp_config, &src->hwtstamp_config, |
|
sizeof(dst->hwtstamp_config)); |
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
dst->tx_ring_num[t] = src->tx_ring_num[t]; |
|
dst->tx_ring[t] = src->tx_ring[t]; |
|
dst->tx_cq[t] = src->tx_cq[t]; |
|
} |
|
dst->num_tx_rings_p_up = src->num_tx_rings_p_up; |
|
dst->rx_ring_num = src->rx_ring_num; |
|
memcpy(dst->prof, src->prof, sizeof(struct mlx4_en_port_profile)); |
|
} |
|
|
|
int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv, |
|
struct mlx4_en_priv *tmp, |
|
struct mlx4_en_port_profile *prof, |
|
bool carry_xdp_prog) |
|
{ |
|
struct bpf_prog *xdp_prog; |
|
int i, t; |
|
|
|
mlx4_en_copy_priv(tmp, priv, prof); |
|
|
|
if (mlx4_en_alloc_resources(tmp)) { |
|
en_warn(priv, |
|
"%s: Resource allocation failed, using previous configuration\n", |
|
__func__); |
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
kfree(tmp->tx_ring[t]); |
|
kfree(tmp->tx_cq[t]); |
|
} |
|
return -ENOMEM; |
|
} |
|
|
|
/* All rx_rings has the same xdp_prog. Pick the first one. */ |
|
xdp_prog = rcu_dereference_protected( |
|
priv->rx_ring[0]->xdp_prog, |
|
lockdep_is_held(&priv->mdev->state_lock)); |
|
|
|
if (xdp_prog && carry_xdp_prog) { |
|
bpf_prog_add(xdp_prog, tmp->rx_ring_num); |
|
for (i = 0; i < tmp->rx_ring_num; i++) |
|
rcu_assign_pointer(tmp->rx_ring[i]->xdp_prog, |
|
xdp_prog); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv, |
|
struct mlx4_en_priv *tmp) |
|
{ |
|
mlx4_en_free_resources(priv); |
|
mlx4_en_update_priv(priv, tmp); |
|
} |
|
|
|
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) { |
|
devlink_port_type_clear(mlx4_get_devlink_port(mdev->dev, |
|
priv->port)); |
|
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); |
|
|
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) |
|
mlx4_en_remove_timestamp(mdev); |
|
|
|
/* Detach the netdev so tasks would not attempt to access it */ |
|
mutex_lock(&mdev->state_lock); |
|
mdev->pndev[priv->port] = NULL; |
|
mdev->upper[priv->port] = NULL; |
|
|
|
#ifdef CONFIG_RFS_ACCEL |
|
mlx4_en_cleanup_filters(priv); |
|
#endif |
|
|
|
mlx4_en_free_resources(priv); |
|
mutex_unlock(&mdev->state_lock); |
|
|
|
free_netdev(dev); |
|
} |
|
|
|
static bool mlx4_en_check_xdp_mtu(struct net_device *dev, int mtu) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
|
|
if (mtu > MLX4_EN_MAX_XDP_MTU) { |
|
en_err(priv, "mtu:%d > max:%d when XDP prog is attached\n", |
|
mtu, MLX4_EN_MAX_XDP_MTU); |
|
return false; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
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 (priv->tx_ring_num[TX_XDP] && |
|
!mlx4_en_check_xdp_mtu(dev, new_mtu)) |
|
return -EOPNOTSUPP; |
|
|
|
dev->mtu = new_mtu; |
|
|
|
if (netif_running(dev)) { |
|
mutex_lock(&mdev->state_lock); |
|
if (!mdev->device_up) { |
|
/* NIC is probably restarting - let restart 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); |
|
if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, |
|
&priv->state)) |
|
queue_work(mdev->workqueue, &priv->restart_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: |
|
case HWTSTAMP_FILTER_NTP_ALL: |
|
config.rx_filter = HWTSTAMP_FILTER_ALL; |
|
break; |
|
default: |
|
return -ERANGE; |
|
} |
|
|
|
if (mlx4_en_reset_config(dev, config, dev->features)) { |
|
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 netdev_features_t mlx4_en_fix_features(struct net_device *netdev, |
|
netdev_features_t features) |
|
{ |
|
struct mlx4_en_priv *en_priv = netdev_priv(netdev); |
|
struct mlx4_en_dev *mdev = en_priv->mdev; |
|
|
|
/* Since there is no support for separate RX C-TAG/S-TAG vlan accel |
|
* enable/disable make sure S-TAG flag is always in same state as |
|
* C-TAG. |
|
*/ |
|
if (features & NETIF_F_HW_VLAN_CTAG_RX && |
|
!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) |
|
features |= NETIF_F_HW_VLAN_STAG_RX; |
|
else |
|
features &= ~NETIF_F_HW_VLAN_STAG_RX; |
|
|
|
return features; |
|
} |
|
|
|
static int mlx4_en_set_features(struct net_device *netdev, |
|
netdev_features_t features) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(netdev); |
|
bool reset = false; |
|
int ret = 0; |
|
|
|
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXFCS)) { |
|
en_info(priv, "Turn %s RX-FCS\n", |
|
(features & NETIF_F_RXFCS) ? "ON" : "OFF"); |
|
reset = true; |
|
} |
|
|
|
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXALL)) { |
|
u8 ignore_fcs_value = (features & NETIF_F_RXALL) ? 1 : 0; |
|
|
|
en_info(priv, "Turn %s RX-ALL\n", |
|
ignore_fcs_value ? "ON" : "OFF"); |
|
ret = mlx4_SET_PORT_fcs_check(priv->mdev->dev, |
|
priv->port, ignore_fcs_value); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_RX)) { |
|
en_info(priv, "Turn %s RX vlan strip offload\n", |
|
(features & NETIF_F_HW_VLAN_CTAG_RX) ? "ON" : "OFF"); |
|
reset = true; |
|
} |
|
|
|
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX)) |
|
en_info(priv, "Turn %s TX vlan strip offload\n", |
|
(features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF"); |
|
|
|
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_STAG_TX)) |
|
en_info(priv, "Turn %s TX S-VLAN strip offload\n", |
|
(features & NETIF_F_HW_VLAN_STAG_TX) ? "ON" : "OFF"); |
|
|
|
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) { |
|
en_info(priv, "Turn %s loopback\n", |
|
(features & NETIF_F_LOOPBACK) ? "ON" : "OFF"); |
|
mlx4_en_update_loopback_state(netdev, features); |
|
} |
|
|
|
if (reset) { |
|
ret = mlx4_en_reset_config(netdev, priv->hwtstamp_config, |
|
features); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
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; |
|
|
|
return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac); |
|
} |
|
|
|
static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos, |
|
__be16 vlan_proto) |
|
{ |
|
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, |
|
vlan_proto); |
|
} |
|
|
|
static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, |
|
int max_tx_rate) |
|
{ |
|
struct mlx4_en_priv *en_priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = en_priv->mdev; |
|
|
|
return mlx4_set_vf_rate(mdev->dev, en_priv->port, vf, min_tx_rate, |
|
max_tx_rate); |
|
} |
|
|
|
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); |
|
} |
|
|
|
static int mlx4_en_get_vf_stats(struct net_device *dev, int vf, |
|
struct ifla_vf_stats *vf_stats) |
|
{ |
|
struct mlx4_en_priv *en_priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = en_priv->mdev; |
|
|
|
return mlx4_get_vf_stats(mdev->dev, en_priv->port, vf, vf_stats); |
|
} |
|
|
|
#define PORT_ID_BYTE_LEN 8 |
|
static int mlx4_en_get_phys_port_id(struct net_device *dev, |
|
struct netdev_phys_item_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; |
|
} |
|
|
|
static int mlx4_udp_tunnel_sync(struct net_device *dev, unsigned int table) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct udp_tunnel_info ti; |
|
int ret; |
|
|
|
udp_tunnel_nic_get_port(dev, table, 0, &ti); |
|
priv->vxlan_port = ti.port; |
|
|
|
ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port); |
|
if (ret) |
|
return ret; |
|
|
|
return mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port, |
|
VXLAN_STEER_BY_OUTER_MAC, |
|
!!priv->vxlan_port); |
|
} |
|
|
|
static const struct udp_tunnel_nic_info mlx4_udp_tunnels = { |
|
.sync_table = mlx4_udp_tunnel_sync, |
|
.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP | |
|
UDP_TUNNEL_NIC_INFO_IPV4_ONLY, |
|
.tables = { |
|
{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, }, |
|
}, |
|
}; |
|
|
|
static netdev_features_t mlx4_en_features_check(struct sk_buff *skb, |
|
struct net_device *dev, |
|
netdev_features_t features) |
|
{ |
|
features = vlan_features_check(skb, features); |
|
features = vxlan_features_check(skb, features); |
|
|
|
/* The ConnectX-3 doesn't support outer IPv6 checksums but it does |
|
* support inner IPv6 checksums and segmentation so we need to |
|
* strip that feature if this is an IPv6 encapsulated frame. |
|
*/ |
|
if (skb->encapsulation && |
|
(skb->ip_summed == CHECKSUM_PARTIAL)) { |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
|
|
if (!priv->vxlan_port || |
|
(ip_hdr(skb)->version != 4) || |
|
(udp_hdr(skb)->dest != priv->vxlan_port)) |
|
features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); |
|
} |
|
|
|
return features; |
|
} |
|
|
|
static int mlx4_en_set_tx_maxrate(struct net_device *dev, int queue_index, u32 maxrate) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][queue_index]; |
|
struct mlx4_update_qp_params params; |
|
int err; |
|
|
|
if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT)) |
|
return -EOPNOTSUPP; |
|
|
|
/* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */ |
|
if (maxrate >> 12) { |
|
params.rate_unit = MLX4_QP_RATE_LIMIT_GBS; |
|
params.rate_val = maxrate / 1000; |
|
} else if (maxrate) { |
|
params.rate_unit = MLX4_QP_RATE_LIMIT_MBS; |
|
params.rate_val = maxrate; |
|
} else { /* zero serves to revoke the QP rate-limitation */ |
|
params.rate_unit = 0; |
|
params.rate_val = 0; |
|
} |
|
|
|
err = mlx4_update_qp(priv->mdev->dev, tx_ring->qpn, MLX4_UPDATE_QP_RATE_LIMIT, |
|
¶ms); |
|
return err; |
|
} |
|
|
|
static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = priv->mdev; |
|
struct mlx4_en_port_profile new_prof; |
|
struct bpf_prog *old_prog; |
|
struct mlx4_en_priv *tmp; |
|
int tx_changed = 0; |
|
int xdp_ring_num; |
|
int port_up = 0; |
|
int err; |
|
int i; |
|
|
|
xdp_ring_num = prog ? priv->rx_ring_num : 0; |
|
|
|
/* No need to reconfigure buffers when simply swapping the |
|
* program for a new one. |
|
*/ |
|
if (priv->tx_ring_num[TX_XDP] == xdp_ring_num) { |
|
if (prog) |
|
bpf_prog_add(prog, priv->rx_ring_num - 1); |
|
|
|
mutex_lock(&mdev->state_lock); |
|
for (i = 0; i < priv->rx_ring_num; i++) { |
|
old_prog = rcu_dereference_protected( |
|
priv->rx_ring[i]->xdp_prog, |
|
lockdep_is_held(&mdev->state_lock)); |
|
rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog); |
|
if (old_prog) |
|
bpf_prog_put(old_prog); |
|
} |
|
mutex_unlock(&mdev->state_lock); |
|
return 0; |
|
} |
|
|
|
if (!mlx4_en_check_xdp_mtu(dev, dev->mtu)) |
|
return -EOPNOTSUPP; |
|
|
|
tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); |
|
if (!tmp) |
|
return -ENOMEM; |
|
|
|
if (prog) |
|
bpf_prog_add(prog, priv->rx_ring_num - 1); |
|
|
|
mutex_lock(&mdev->state_lock); |
|
memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); |
|
new_prof.tx_ring_num[TX_XDP] = xdp_ring_num; |
|
|
|
if (priv->tx_ring_num[TX] + xdp_ring_num > MAX_TX_RINGS) { |
|
tx_changed = 1; |
|
new_prof.tx_ring_num[TX] = |
|
MAX_TX_RINGS - ALIGN(xdp_ring_num, priv->prof->num_up); |
|
en_warn(priv, "Reducing the number of TX rings, to not exceed the max total rings number.\n"); |
|
} |
|
|
|
err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, false); |
|
if (err) { |
|
if (prog) |
|
bpf_prog_sub(prog, priv->rx_ring_num - 1); |
|
goto unlock_out; |
|
} |
|
|
|
if (priv->port_up) { |
|
port_up = 1; |
|
mlx4_en_stop_port(dev, 1); |
|
} |
|
|
|
mlx4_en_safe_replace_resources(priv, tmp); |
|
if (tx_changed) |
|
netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); |
|
|
|
for (i = 0; i < priv->rx_ring_num; i++) { |
|
old_prog = rcu_dereference_protected( |
|
priv->rx_ring[i]->xdp_prog, |
|
lockdep_is_held(&mdev->state_lock)); |
|
rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog); |
|
if (old_prog) |
|
bpf_prog_put(old_prog); |
|
} |
|
|
|
if (port_up) { |
|
err = mlx4_en_start_port(dev); |
|
if (err) { |
|
en_err(priv, "Failed starting port %d for XDP change\n", |
|
priv->port); |
|
if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state)) |
|
queue_work(mdev->workqueue, &priv->restart_task); |
|
} |
|
} |
|
|
|
unlock_out: |
|
mutex_unlock(&mdev->state_lock); |
|
kfree(tmp); |
|
return err; |
|
} |
|
|
|
static int mlx4_xdp(struct net_device *dev, struct netdev_bpf *xdp) |
|
{ |
|
switch (xdp->command) { |
|
case XDP_SETUP_PROG: |
|
return mlx4_xdp_set(dev, xdp->prog); |
|
default: |
|
return -EINVAL; |
|
} |
|
} |
|
|
|
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_stats64 = mlx4_en_get_stats64, |
|
.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, |
|
.ndo_set_features = mlx4_en_set_features, |
|
.ndo_fix_features = mlx4_en_fix_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, |
|
.ndo_features_check = mlx4_en_features_check, |
|
.ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate, |
|
.ndo_bpf = mlx4_xdp, |
|
}; |
|
|
|
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_stats64 = mlx4_en_get_stats64, |
|
.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_rate = mlx4_en_set_vf_rate, |
|
.ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk, |
|
.ndo_set_vf_link_state = mlx4_en_set_vf_link_state, |
|
.ndo_get_vf_stats = mlx4_en_get_vf_stats, |
|
.ndo_get_vf_config = mlx4_en_get_vf_config, |
|
.ndo_set_features = mlx4_en_set_features, |
|
.ndo_fix_features = mlx4_en_fix_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, |
|
.ndo_features_check = mlx4_en_features_check, |
|
.ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate, |
|
.ndo_bpf = mlx4_xdp, |
|
}; |
|
|
|
struct mlx4_en_bond { |
|
struct work_struct work; |
|
struct mlx4_en_priv *priv; |
|
int is_bonded; |
|
struct mlx4_port_map port_map; |
|
}; |
|
|
|
static void mlx4_en_bond_work(struct work_struct *work) |
|
{ |
|
struct mlx4_en_bond *bond = container_of(work, |
|
struct mlx4_en_bond, |
|
work); |
|
int err = 0; |
|
struct mlx4_dev *dev = bond->priv->mdev->dev; |
|
|
|
if (bond->is_bonded) { |
|
if (!mlx4_is_bonded(dev)) { |
|
err = mlx4_bond(dev); |
|
if (err) |
|
en_err(bond->priv, "Fail to bond device\n"); |
|
} |
|
if (!err) { |
|
err = mlx4_port_map_set(dev, &bond->port_map); |
|
if (err) |
|
en_err(bond->priv, "Fail to set port map [%d][%d]: %d\n", |
|
bond->port_map.port1, |
|
bond->port_map.port2, |
|
err); |
|
} |
|
} else if (mlx4_is_bonded(dev)) { |
|
err = mlx4_unbond(dev); |
|
if (err) |
|
en_err(bond->priv, "Fail to unbond device\n"); |
|
} |
|
dev_put(bond->priv->dev); |
|
kfree(bond); |
|
} |
|
|
|
static int mlx4_en_queue_bond_work(struct mlx4_en_priv *priv, int is_bonded, |
|
u8 v2p_p1, u8 v2p_p2) |
|
{ |
|
struct mlx4_en_bond *bond = NULL; |
|
|
|
bond = kzalloc(sizeof(*bond), GFP_ATOMIC); |
|
if (!bond) |
|
return -ENOMEM; |
|
|
|
INIT_WORK(&bond->work, mlx4_en_bond_work); |
|
bond->priv = priv; |
|
bond->is_bonded = is_bonded; |
|
bond->port_map.port1 = v2p_p1; |
|
bond->port_map.port2 = v2p_p2; |
|
dev_hold(priv->dev); |
|
queue_work(priv->mdev->workqueue, &bond->work); |
|
return 0; |
|
} |
|
|
|
int mlx4_en_netdev_event(struct notifier_block *this, |
|
unsigned long event, void *ptr) |
|
{ |
|
struct net_device *ndev = netdev_notifier_info_to_dev(ptr); |
|
u8 port = 0; |
|
struct mlx4_en_dev *mdev; |
|
struct mlx4_dev *dev; |
|
int i, num_eth_ports = 0; |
|
bool do_bond = true; |
|
struct mlx4_en_priv *priv; |
|
u8 v2p_port1 = 0; |
|
u8 v2p_port2 = 0; |
|
|
|
if (!net_eq(dev_net(ndev), &init_net)) |
|
return NOTIFY_DONE; |
|
|
|
mdev = container_of(this, struct mlx4_en_dev, nb); |
|
dev = mdev->dev; |
|
|
|
/* Go into this mode only when two network devices set on two ports |
|
* of the same mlx4 device are slaves of the same bonding master |
|
*/ |
|
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { |
|
++num_eth_ports; |
|
if (!port && (mdev->pndev[i] == ndev)) |
|
port = i; |
|
mdev->upper[i] = mdev->pndev[i] ? |
|
netdev_master_upper_dev_get(mdev->pndev[i]) : NULL; |
|
/* condition not met: network device is a slave */ |
|
if (!mdev->upper[i]) |
|
do_bond = false; |
|
if (num_eth_ports < 2) |
|
continue; |
|
/* condition not met: same master */ |
|
if (mdev->upper[i] != mdev->upper[i-1]) |
|
do_bond = false; |
|
} |
|
/* condition not met: 2 salves */ |
|
do_bond = (num_eth_ports == 2) ? do_bond : false; |
|
|
|
/* handle only events that come with enough info */ |
|
if ((do_bond && (event != NETDEV_BONDING_INFO)) || !port) |
|
return NOTIFY_DONE; |
|
|
|
priv = netdev_priv(ndev); |
|
if (do_bond) { |
|
struct netdev_notifier_bonding_info *notifier_info = ptr; |
|
struct netdev_bonding_info *bonding_info = |
|
¬ifier_info->bonding_info; |
|
|
|
/* required mode 1, 2 or 4 */ |
|
if ((bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) && |
|
(bonding_info->master.bond_mode != BOND_MODE_XOR) && |
|
(bonding_info->master.bond_mode != BOND_MODE_8023AD)) |
|
do_bond = false; |
|
|
|
/* require exactly 2 slaves */ |
|
if (bonding_info->master.num_slaves != 2) |
|
do_bond = false; |
|
|
|
/* calc v2p */ |
|
if (do_bond) { |
|
if (bonding_info->master.bond_mode == |
|
BOND_MODE_ACTIVEBACKUP) { |
|
/* in active-backup mode virtual ports are |
|
* mapped to the physical port of the active |
|
* slave */ |
|
if (bonding_info->slave.state == |
|
BOND_STATE_BACKUP) { |
|
if (port == 1) { |
|
v2p_port1 = 2; |
|
v2p_port2 = 2; |
|
} else { |
|
v2p_port1 = 1; |
|
v2p_port2 = 1; |
|
} |
|
} else { /* BOND_STATE_ACTIVE */ |
|
if (port == 1) { |
|
v2p_port1 = 1; |
|
v2p_port2 = 1; |
|
} else { |
|
v2p_port1 = 2; |
|
v2p_port2 = 2; |
|
} |
|
} |
|
} else { /* Active-Active */ |
|
/* in active-active mode a virtual port is |
|
* mapped to the native physical port if and only |
|
* if the physical port is up */ |
|
__s8 link = bonding_info->slave.link; |
|
|
|
if (port == 1) |
|
v2p_port2 = 2; |
|
else |
|
v2p_port1 = 1; |
|
if ((link == BOND_LINK_UP) || |
|
(link == BOND_LINK_FAIL)) { |
|
if (port == 1) |
|
v2p_port1 = 1; |
|
else |
|
v2p_port2 = 2; |
|
} else { /* BOND_LINK_DOWN || BOND_LINK_BACK */ |
|
if (port == 1) |
|
v2p_port1 = 2; |
|
else |
|
v2p_port2 = 1; |
|
} |
|
} |
|
} |
|
} |
|
|
|
mlx4_en_queue_bond_work(priv, do_bond, |
|
v2p_port1, v2p_port2); |
|
|
|
return NOTIFY_DONE; |
|
} |
|
|
|
void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev, |
|
struct mlx4_en_stats_bitmap *stats_bitmap, |
|
u8 rx_ppp, u8 rx_pause, |
|
u8 tx_ppp, u8 tx_pause) |
|
{ |
|
int last_i = NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PF_STATS; |
|
|
|
if (!mlx4_is_slave(dev) && |
|
(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) { |
|
mutex_lock(&stats_bitmap->mutex); |
|
bitmap_clear(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS); |
|
|
|
if (rx_ppp) |
|
bitmap_set(stats_bitmap->bitmap, last_i, |
|
NUM_FLOW_PRIORITY_STATS_RX); |
|
last_i += NUM_FLOW_PRIORITY_STATS_RX; |
|
|
|
if (rx_pause && !(rx_ppp)) |
|
bitmap_set(stats_bitmap->bitmap, last_i, |
|
NUM_FLOW_STATS_RX); |
|
last_i += NUM_FLOW_STATS_RX; |
|
|
|
if (tx_ppp) |
|
bitmap_set(stats_bitmap->bitmap, last_i, |
|
NUM_FLOW_PRIORITY_STATS_TX); |
|
last_i += NUM_FLOW_PRIORITY_STATS_TX; |
|
|
|
if (tx_pause && !(tx_ppp)) |
|
bitmap_set(stats_bitmap->bitmap, last_i, |
|
NUM_FLOW_STATS_TX); |
|
last_i += NUM_FLOW_STATS_TX; |
|
|
|
mutex_unlock(&stats_bitmap->mutex); |
|
} |
|
} |
|
|
|
void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, |
|
struct mlx4_en_stats_bitmap *stats_bitmap, |
|
u8 rx_ppp, u8 rx_pause, |
|
u8 tx_ppp, u8 tx_pause) |
|
{ |
|
int last_i = 0; |
|
|
|
mutex_init(&stats_bitmap->mutex); |
|
bitmap_zero(stats_bitmap->bitmap, NUM_ALL_STATS); |
|
|
|
if (mlx4_is_slave(dev)) { |
|
bitmap_set(stats_bitmap->bitmap, last_i + |
|
MLX4_FIND_NETDEV_STAT(rx_packets), 1); |
|
bitmap_set(stats_bitmap->bitmap, last_i + |
|
MLX4_FIND_NETDEV_STAT(tx_packets), 1); |
|
bitmap_set(stats_bitmap->bitmap, last_i + |
|
MLX4_FIND_NETDEV_STAT(rx_bytes), 1); |
|
bitmap_set(stats_bitmap->bitmap, last_i + |
|
MLX4_FIND_NETDEV_STAT(tx_bytes), 1); |
|
bitmap_set(stats_bitmap->bitmap, last_i + |
|
MLX4_FIND_NETDEV_STAT(rx_dropped), 1); |
|
bitmap_set(stats_bitmap->bitmap, last_i + |
|
MLX4_FIND_NETDEV_STAT(tx_dropped), 1); |
|
} else { |
|
bitmap_set(stats_bitmap->bitmap, last_i, NUM_MAIN_STATS); |
|
} |
|
last_i += NUM_MAIN_STATS; |
|
|
|
bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS); |
|
last_i += NUM_PORT_STATS; |
|
|
|
if (mlx4_is_master(dev)) |
|
bitmap_set(stats_bitmap->bitmap, last_i, |
|
NUM_PF_STATS); |
|
last_i += NUM_PF_STATS; |
|
|
|
mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap, |
|
rx_ppp, rx_pause, |
|
tx_ppp, tx_pause); |
|
last_i += NUM_FLOW_STATS; |
|
|
|
if (!mlx4_is_slave(dev)) |
|
bitmap_set(stats_bitmap->bitmap, last_i, NUM_PKT_STATS); |
|
last_i += NUM_PKT_STATS; |
|
|
|
bitmap_set(stats_bitmap->bitmap, last_i, NUM_XDP_STATS); |
|
last_i += NUM_XDP_STATS; |
|
|
|
if (!mlx4_is_slave(dev)) |
|
bitmap_set(stats_bitmap->bitmap, last_i, NUM_PHY_STATS); |
|
last_i += NUM_PHY_STATS; |
|
} |
|
|
|
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, t; |
|
int err; |
|
|
|
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[TX]); |
|
netif_set_real_num_rx_queues(dev, prof->rx_ring_num); |
|
|
|
SET_NETDEV_DEV(dev, &mdev->dev->persist->pdev->dev); |
|
dev->dev_port = port - 1; |
|
|
|
/* |
|
* Initialize driver private data |
|
*/ |
|
|
|
priv = netdev_priv(dev); |
|
memset(priv, 0, sizeof(struct mlx4_en_priv)); |
|
priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev); |
|
spin_lock_init(&priv->stats_lock); |
|
INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode); |
|
INIT_WORK(&priv->restart_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_RFS_ACCEL |
|
INIT_LIST_HEAD(&priv->filters); |
|
spin_lock_init(&priv->filters_lock); |
|
#endif |
|
|
|
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.max_num_tx_rings_p_up; |
|
priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK; |
|
netdev_rss_key_fill(priv->rss_key, sizeof(priv->rss_key)); |
|
|
|
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { |
|
priv->tx_ring_num[t] = prof->tx_ring_num[t]; |
|
if (!priv->tx_ring_num[t]) |
|
continue; |
|
|
|
priv->tx_ring[t] = kcalloc(MAX_TX_RINGS, |
|
sizeof(struct mlx4_en_tx_ring *), |
|
GFP_KERNEL); |
|
if (!priv->tx_ring[t]) { |
|
err = -ENOMEM; |
|
goto out; |
|
} |
|
priv->tx_cq[t] = kcalloc(MAX_TX_RINGS, |
|
sizeof(struct mlx4_en_cq *), |
|
GFP_KERNEL); |
|
if (!priv->tx_cq[t]) { |
|
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; |
|
#ifdef CONFIG_MLX4_EN_DCB |
|
if (!mlx4_is_slave(priv->mdev->dev)) { |
|
u8 prio; |
|
|
|
for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; ++prio) { |
|
priv->ets.prio_tc[prio] = prio; |
|
priv->ets.tc_tsa[prio] = IEEE_8021QAZ_TSA_VENDOR; |
|
} |
|
|
|
priv->dcbx_cap = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_HOST | |
|
DCB_CAP_DCBX_VER_IEEE; |
|
priv->flags |= MLX4_EN_DCB_ENABLED; |
|
priv->cee_config.pfc_state = false; |
|
|
|
for (i = 0; i < MLX4_EN_NUM_UP_HIGH; i++) |
|
priv->cee_config.dcb_pfc[i] = pfc_disabled; |
|
|
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) { |
|
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]; |
|
|
|
if (mdev->dev->caps.rx_checksum_flags_port[priv->port] & |
|
MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP) |
|
priv->flags |= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP; |
|
|
|
/* 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)) { |
|
en_err(priv, "Port: %d, invalid mac burned: %pM, quitting\n", |
|
priv->port, dev->dev_addr); |
|
err = -EINVAL; |
|
goto out; |
|
} else if (mlx4_is_slave(priv->mdev->dev) && |
|
(priv->mdev->dev->port_random_macs & 1 << priv->port)) { |
|
/* Random MAC was assigned in mlx4_slave_cap |
|
* in mlx4_core module |
|
*/ |
|
dev->addr_assign_type |= NET_ADDR_RANDOM; |
|
en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr); |
|
} |
|
|
|
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; |
|
|
|
/* 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); |
|
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[TX]); |
|
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; |
|
|
|
if (mdev->dev->caps.tunnel_offload_mode == |
|
MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) { |
|
dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL | |
|
NETIF_F_GSO_UDP_TUNNEL_CSUM | |
|
NETIF_F_GSO_PARTIAL; |
|
dev->features |= NETIF_F_GSO_UDP_TUNNEL | |
|
NETIF_F_GSO_UDP_TUNNEL_CSUM | |
|
NETIF_F_GSO_PARTIAL; |
|
dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM; |
|
dev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
|
NETIF_F_RXCSUM | |
|
NETIF_F_TSO | NETIF_F_TSO6 | |
|
NETIF_F_GSO_UDP_TUNNEL | |
|
NETIF_F_GSO_UDP_TUNNEL_CSUM | |
|
NETIF_F_GSO_PARTIAL; |
|
|
|
dev->udp_tunnel_nic_info = &mlx4_udp_tunnels; |
|
} |
|
|
|
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 | |
|
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; |
|
|
|
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) { |
|
dev->features |= NETIF_F_HW_VLAN_STAG_RX | |
|
NETIF_F_HW_VLAN_STAG_FILTER; |
|
dev->hw_features |= NETIF_F_HW_VLAN_STAG_RX; |
|
} |
|
|
|
if (mlx4_is_slave(mdev->dev)) { |
|
bool vlan_offload_disabled; |
|
int phv; |
|
|
|
err = get_phv_bit(mdev->dev, port, &phv); |
|
if (!err && phv) { |
|
dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; |
|
priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV; |
|
} |
|
err = mlx4_get_is_vlan_offload_disabled(mdev->dev, port, |
|
&vlan_offload_disabled); |
|
if (!err && vlan_offload_disabled) { |
|
dev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_TX | |
|
NETIF_F_HW_VLAN_CTAG_RX | |
|
NETIF_F_HW_VLAN_STAG_TX | |
|
NETIF_F_HW_VLAN_STAG_RX); |
|
dev->features &= ~(NETIF_F_HW_VLAN_CTAG_TX | |
|
NETIF_F_HW_VLAN_CTAG_RX | |
|
NETIF_F_HW_VLAN_STAG_TX | |
|
NETIF_F_HW_VLAN_STAG_RX); |
|
} |
|
} else { |
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN && |
|
!(mdev->dev->caps.flags2 & |
|
MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) |
|
dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; |
|
} |
|
|
|
if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP) |
|
dev->hw_features |= NETIF_F_RXFCS; |
|
|
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS) |
|
dev->hw_features |= NETIF_F_RXALL; |
|
|
|
if (mdev->dev->caps.steering_mode == |
|
MLX4_STEERING_MODE_DEVICE_MANAGED && |
|
mdev->dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC) |
|
dev->hw_features |= NETIF_F_NTUPLE; |
|
|
|
if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0) |
|
dev->priv_flags |= IFF_UNICAST_FLT; |
|
|
|
/* Setting a default hash function value */ |
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) { |
|
priv->rss_hash_fn = ETH_RSS_HASH_TOP; |
|
} else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) { |
|
priv->rss_hash_fn = ETH_RSS_HASH_XOR; |
|
} else { |
|
en_warn(priv, |
|
"No RSS hash capabilities exposed, using Toeplitz\n"); |
|
priv->rss_hash_fn = ETH_RSS_HASH_TOP; |
|
} |
|
|
|
/* MTU range: 68 - hw-specific max */ |
|
dev->min_mtu = ETH_MIN_MTU; |
|
dev->max_mtu = priv->max_mtu; |
|
|
|
mdev->pndev[port] = dev; |
|
mdev->upper[port] = NULL; |
|
|
|
netif_carrier_off(dev); |
|
mlx4_en_set_default_moderation(priv); |
|
|
|
en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num[TX]); |
|
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); |
|
|
|
/* Initialize time stamp mechanism */ |
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) |
|
mlx4_en_init_timestamp(mdev); |
|
|
|
queue_delayed_work(mdev->workqueue, &priv->service_task, |
|
SERVICE_TASK_DELAY); |
|
|
|
mlx4_en_set_stats_bitmap(mdev->dev, &priv->stats_bitmap, |
|
mdev->profile.prof[priv->port].rx_ppp, |
|
mdev->profile.prof[priv->port].rx_pause, |
|
mdev->profile.prof[priv->port].tx_ppp, |
|
mdev->profile.prof[priv->port].tx_pause); |
|
|
|
err = register_netdev(dev); |
|
if (err) { |
|
en_err(priv, "Netdev registration failed for port %d\n", port); |
|
goto out; |
|
} |
|
|
|
priv->registered = 1; |
|
devlink_port_type_eth_set(mlx4_get_devlink_port(mdev->dev, priv->port), |
|
dev); |
|
|
|
return 0; |
|
|
|
out: |
|
mlx4_en_destroy_netdev(dev); |
|
return err; |
|
} |
|
|
|
int mlx4_en_reset_config(struct net_device *dev, |
|
struct hwtstamp_config ts_config, |
|
netdev_features_t features) |
|
{ |
|
struct mlx4_en_priv *priv = netdev_priv(dev); |
|
struct mlx4_en_dev *mdev = priv->mdev; |
|
struct mlx4_en_port_profile new_prof; |
|
struct mlx4_en_priv *tmp; |
|
int port_up = 0; |
|
int err = 0; |
|
|
|
if (priv->hwtstamp_config.tx_type == ts_config.tx_type && |
|
priv->hwtstamp_config.rx_filter == ts_config.rx_filter && |
|
!DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) && |
|
!DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) |
|
return 0; /* Nothing to change */ |
|
|
|
if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) && |
|
(features & NETIF_F_HW_VLAN_CTAG_RX) && |
|
(priv->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE)) { |
|
en_warn(priv, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n"); |
|
return -EINVAL; |
|
} |
|
|
|
tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); |
|
if (!tmp) |
|
return -ENOMEM; |
|
|
|
mutex_lock(&mdev->state_lock); |
|
|
|
memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); |
|
memcpy(&new_prof.hwtstamp_config, &ts_config, sizeof(ts_config)); |
|
|
|
err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); |
|
if (err) |
|
goto out; |
|
|
|
if (priv->port_up) { |
|
port_up = 1; |
|
mlx4_en_stop_port(dev, 1); |
|
} |
|
|
|
mlx4_en_safe_replace_resources(priv, tmp); |
|
|
|
if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX)) { |
|
if (features & NETIF_F_HW_VLAN_CTAG_RX) |
|
dev->features |= NETIF_F_HW_VLAN_CTAG_RX; |
|
else |
|
dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; |
|
} else if (ts_config.rx_filter == HWTSTAMP_FILTER_NONE) { |
|
/* RX time-stamping is OFF, update the RX vlan offload |
|
* to the latest wanted state |
|
*/ |
|
if (dev->wanted_features & NETIF_F_HW_VLAN_CTAG_RX) |
|
dev->features |= NETIF_F_HW_VLAN_CTAG_RX; |
|
else |
|
dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; |
|
} |
|
|
|
if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) { |
|
if (features & NETIF_F_RXFCS) |
|
dev->features |= NETIF_F_RXFCS; |
|
else |
|
dev->features &= ~NETIF_F_RXFCS; |
|
} |
|
|
|
/* RX vlan offload and RX time-stamping can't co-exist ! |
|
* Regardless of the caller's choice, |
|
* Turn Off RX vlan offload in case of time-stamping is ON |
|
*/ |
|
if (ts_config.rx_filter != HWTSTAMP_FILTER_NONE) { |
|
if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) |
|
en_warn(priv, "Turning off RX vlan offload since RX time-stamping is ON\n"); |
|
dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; |
|
} |
|
|
|
if (port_up) { |
|
err = mlx4_en_start_port(dev); |
|
if (err) |
|
en_err(priv, "Failed starting port\n"); |
|
} |
|
|
|
if (!err) |
|
err = mlx4_en_moderation_update(priv); |
|
out: |
|
mutex_unlock(&mdev->state_lock); |
|
kfree(tmp); |
|
if (!err) |
|
netdev_features_change(dev); |
|
return err; |
|
}
|
|
|