mirror of
https://git.proxmox.com/git/mirror_ubuntu-kernels.git
synced 2025-11-21 13:52:50 +00:00
bc9a2b3e68
Add support for generation of interrupts from the device directly to the VM to the VCPU thus avoiding the overhead on the host CPU. When supported, the driver will attempt to allocate vectors for each data virtqueue. If a vector for a virtqueue cannot be provided it will use the QP mode where notifications go through the driver. In addition, we add a shutdown callback to make sure allocated interrupts are released in case of shutdown to allow clean shutdown. Signed-off-by: Eli Cohen <elic@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Message-Id: <20230607190007.290505-1-dtatulea@nvidia.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
|
|
/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
|
|
|
|
#ifndef __MLX5_VNET_H__
|
|
#define __MLX5_VNET_H__
|
|
|
|
#include "mlx5_vdpa.h"
|
|
|
|
#define to_mlx5_vdpa_ndev(__mvdev) \
|
|
container_of(__mvdev, struct mlx5_vdpa_net, mvdev)
|
|
#define to_mvdev(__vdev) container_of((__vdev), struct mlx5_vdpa_dev, vdev)
|
|
|
|
struct mlx5_vdpa_net_resources {
|
|
u32 tisn;
|
|
u32 tdn;
|
|
u32 tirn;
|
|
u32 rqtn;
|
|
bool valid;
|
|
struct dentry *tirn_dent;
|
|
};
|
|
|
|
#define MLX5V_MACVLAN_SIZE 256
|
|
|
|
static inline u16 key2vid(u64 key)
|
|
{
|
|
return (u16)(key >> 48) & 0xfff;
|
|
}
|
|
|
|
#define MLX5_VDPA_IRQ_NAME_LEN 32
|
|
|
|
struct mlx5_vdpa_irq_pool_entry {
|
|
struct msi_map map;
|
|
bool used;
|
|
char name[MLX5_VDPA_IRQ_NAME_LEN];
|
|
void *dev_id;
|
|
};
|
|
|
|
struct mlx5_vdpa_irq_pool {
|
|
int num_ent;
|
|
struct mlx5_vdpa_irq_pool_entry *entries;
|
|
};
|
|
|
|
struct mlx5_vdpa_net {
|
|
struct mlx5_vdpa_dev mvdev;
|
|
struct mlx5_vdpa_net_resources res;
|
|
struct virtio_net_config config;
|
|
struct mlx5_vdpa_virtqueue *vqs;
|
|
struct vdpa_callback *event_cbs;
|
|
|
|
/* Serialize vq resources creation and destruction. This is required
|
|
* since memory map might change and we need to destroy and create
|
|
* resources while driver in operational.
|
|
*/
|
|
struct rw_semaphore reslock;
|
|
struct mlx5_flow_table *rxft;
|
|
struct dentry *rx_dent;
|
|
struct dentry *rx_table_dent;
|
|
bool setup;
|
|
u32 cur_num_vqs;
|
|
u32 rqt_size;
|
|
bool nb_registered;
|
|
struct notifier_block nb;
|
|
struct vdpa_callback config_cb;
|
|
struct mlx5_vdpa_wq_ent cvq_ent;
|
|
struct hlist_head macvlan_hash[MLX5V_MACVLAN_SIZE];
|
|
struct mlx5_vdpa_irq_pool irqp;
|
|
struct dentry *debugfs;
|
|
};
|
|
|
|
struct mlx5_vdpa_counter {
|
|
struct mlx5_fc *counter;
|
|
struct dentry *dent;
|
|
struct mlx5_core_dev *mdev;
|
|
};
|
|
|
|
struct macvlan_node {
|
|
struct hlist_node hlist;
|
|
struct mlx5_flow_handle *ucast_rule;
|
|
struct mlx5_flow_handle *mcast_rule;
|
|
u64 macvlan;
|
|
struct mlx5_vdpa_net *ndev;
|
|
bool tagged;
|
|
#if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
|
|
struct dentry *dent;
|
|
struct mlx5_vdpa_counter ucast_counter;
|
|
struct mlx5_vdpa_counter mcast_counter;
|
|
#endif
|
|
};
|
|
|
|
void mlx5_vdpa_add_debugfs(struct mlx5_vdpa_net *ndev);
|
|
void mlx5_vdpa_remove_debugfs(struct dentry *dbg);
|
|
void mlx5_vdpa_add_rx_flow_table(struct mlx5_vdpa_net *ndev);
|
|
void mlx5_vdpa_remove_rx_flow_table(struct mlx5_vdpa_net *ndev);
|
|
void mlx5_vdpa_add_tirn(struct mlx5_vdpa_net *ndev);
|
|
void mlx5_vdpa_remove_tirn(struct mlx5_vdpa_net *ndev);
|
|
#if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
|
|
void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
|
|
struct macvlan_node *node);
|
|
void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
|
|
struct macvlan_node *node);
|
|
#else
|
|
static inline void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
|
|
struct macvlan_node *node) {}
|
|
static inline void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
|
|
struct macvlan_node *node) {}
|
|
#endif
|
|
|
|
|
|
#endif /* __MLX5_VNET_H__ */
|