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![Saeed Mahameed](/assets/img/avatar_default.png)
Now as all commands use mlx5 ifc interface, instead of doing two calls for executing a command we embed command status checking into mlx5_cmd_exec to simplify the interface. Also we do here some cleanup for redundant software structures (inbox/outbox) and functions and improved command failure output. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
182 lines
5.2 KiB
C
182 lines
5.2 KiB
C
/*
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* Copyright (c) 2016, Mellanox Technologies, Ltd. 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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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mlx5/driver.h>
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#include "mlx5_core.h"
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#include "vxlan.h"
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void mlx5e_vxlan_init(struct mlx5e_priv *priv)
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{
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struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
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spin_lock_init(&vxlan_db->lock);
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INIT_RADIX_TREE(&vxlan_db->tree, GFP_ATOMIC);
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}
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static int mlx5e_vxlan_core_add_port_cmd(struct mlx5_core_dev *mdev, u16 port)
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{
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u32 in[MLX5_ST_SZ_DW(add_vxlan_udp_dport_in)] = {0};
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u32 out[MLX5_ST_SZ_DW(add_vxlan_udp_dport_out)] = {0};
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MLX5_SET(add_vxlan_udp_dport_in, in, opcode,
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MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT);
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MLX5_SET(add_vxlan_udp_dport_in, in, vxlan_udp_port, port);
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return mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
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}
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static int mlx5e_vxlan_core_del_port_cmd(struct mlx5_core_dev *mdev, u16 port)
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{
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u32 in[MLX5_ST_SZ_DW(delete_vxlan_udp_dport_in)] = {0};
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u32 out[MLX5_ST_SZ_DW(delete_vxlan_udp_dport_out)] = {0};
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MLX5_SET(delete_vxlan_udp_dport_in, in, opcode,
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MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT);
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MLX5_SET(delete_vxlan_udp_dport_in, in, vxlan_udp_port, port);
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return mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
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}
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struct mlx5e_vxlan *mlx5e_vxlan_lookup_port(struct mlx5e_priv *priv, u16 port)
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{
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struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
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struct mlx5e_vxlan *vxlan;
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spin_lock(&vxlan_db->lock);
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vxlan = radix_tree_lookup(&vxlan_db->tree, port);
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spin_unlock(&vxlan_db->lock);
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return vxlan;
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}
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static void mlx5e_vxlan_add_port(struct work_struct *work)
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{
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struct mlx5e_vxlan_work *vxlan_work =
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container_of(work, struct mlx5e_vxlan_work, work);
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struct mlx5e_priv *priv = vxlan_work->priv;
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struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
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u16 port = vxlan_work->port;
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struct mlx5e_vxlan *vxlan;
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int err;
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if (mlx5e_vxlan_lookup_port(priv, port))
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goto free_work;
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if (mlx5e_vxlan_core_add_port_cmd(priv->mdev, port))
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goto free_work;
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vxlan = kzalloc(sizeof(*vxlan), GFP_KERNEL);
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if (!vxlan)
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goto err_delete_port;
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vxlan->udp_port = port;
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spin_lock_irq(&vxlan_db->lock);
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err = radix_tree_insert(&vxlan_db->tree, vxlan->udp_port, vxlan);
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spin_unlock_irq(&vxlan_db->lock);
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if (err)
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goto err_free;
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goto free_work;
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err_free:
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kfree(vxlan);
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err_delete_port:
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mlx5e_vxlan_core_del_port_cmd(priv->mdev, port);
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free_work:
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kfree(vxlan_work);
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}
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static void __mlx5e_vxlan_core_del_port(struct mlx5e_priv *priv, u16 port)
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{
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struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
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struct mlx5e_vxlan *vxlan;
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spin_lock_irq(&vxlan_db->lock);
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vxlan = radix_tree_delete(&vxlan_db->tree, port);
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spin_unlock_irq(&vxlan_db->lock);
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if (!vxlan)
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return;
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mlx5e_vxlan_core_del_port_cmd(priv->mdev, vxlan->udp_port);
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kfree(vxlan);
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}
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static void mlx5e_vxlan_del_port(struct work_struct *work)
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{
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struct mlx5e_vxlan_work *vxlan_work =
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container_of(work, struct mlx5e_vxlan_work, work);
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struct mlx5e_priv *priv = vxlan_work->priv;
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u16 port = vxlan_work->port;
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__mlx5e_vxlan_core_del_port(priv, port);
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kfree(vxlan_work);
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}
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void mlx5e_vxlan_queue_work(struct mlx5e_priv *priv, sa_family_t sa_family,
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u16 port, int add)
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{
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struct mlx5e_vxlan_work *vxlan_work;
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vxlan_work = kmalloc(sizeof(*vxlan_work), GFP_ATOMIC);
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if (!vxlan_work)
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return;
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if (add)
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INIT_WORK(&vxlan_work->work, mlx5e_vxlan_add_port);
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else
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INIT_WORK(&vxlan_work->work, mlx5e_vxlan_del_port);
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vxlan_work->priv = priv;
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vxlan_work->port = port;
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vxlan_work->sa_family = sa_family;
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queue_work(priv->wq, &vxlan_work->work);
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}
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void mlx5e_vxlan_cleanup(struct mlx5e_priv *priv)
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{
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struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
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struct mlx5e_vxlan *vxlan;
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unsigned int port = 0;
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spin_lock_irq(&vxlan_db->lock);
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while (radix_tree_gang_lookup(&vxlan_db->tree, (void **)&vxlan, port, 1)) {
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port = vxlan->udp_port;
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spin_unlock_irq(&vxlan_db->lock);
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__mlx5e_vxlan_core_del_port(priv, (u16)port);
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spin_lock_irq(&vxlan_db->lock);
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}
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spin_unlock_irq(&vxlan_db->lock);
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}
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