mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-02-13 20:15:20 -05:00
31127dedde
Implement netdev_nl_queue_create_doit which creates a new rx queue in a
virtual netdev and then leases it to a rx queue in a physical netdev.
Example with ynl client:
# ./pyynl/cli.py \
--spec ~/netlink/specs/netdev.yaml \
--do queue-create \
--json '{"ifindex": 8, "type": "rx", "lease": {"ifindex": 4, "queue": {"type": "rx", "id": 15}}}'
{'id': 1}
Note that the netdevice locking order is always from the virtual to
the physical device.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Co-developed-by: David Wei <dw@davidwei.uk>
Signed-off-by: David Wei <dw@davidwei.uk>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260115082603.219152-3-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_NETDEV_RX_QUEUE_H
|
|
#define _LINUX_NETDEV_RX_QUEUE_H
|
|
|
|
#include <linux/kobject.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/sysfs.h>
|
|
#include <net/xdp.h>
|
|
#include <net/page_pool/types.h>
|
|
|
|
/* This structure contains an instance of an RX queue. */
|
|
struct netdev_rx_queue {
|
|
struct xdp_rxq_info xdp_rxq;
|
|
#ifdef CONFIG_RPS
|
|
struct rps_map __rcu *rps_map;
|
|
struct rps_dev_flow_table __rcu *rps_flow_table;
|
|
#endif
|
|
struct kobject kobj;
|
|
const struct attribute_group **groups;
|
|
struct net_device *dev;
|
|
netdevice_tracker dev_tracker;
|
|
|
|
/* All fields below are "ops protected",
|
|
* see comment about net_device::lock
|
|
*/
|
|
#ifdef CONFIG_XDP_SOCKETS
|
|
struct xsk_buff_pool *pool;
|
|
#endif
|
|
struct napi_struct *napi;
|
|
struct pp_memory_provider_params mp_params;
|
|
struct netdev_rx_queue *lease;
|
|
netdevice_tracker lease_tracker;
|
|
} ____cacheline_aligned_in_smp;
|
|
|
|
/*
|
|
* RX queue sysfs structures and functions.
|
|
*/
|
|
struct rx_queue_attribute {
|
|
struct attribute attr;
|
|
ssize_t (*show)(struct netdev_rx_queue *queue, char *buf);
|
|
ssize_t (*store)(struct netdev_rx_queue *queue,
|
|
const char *buf, size_t len);
|
|
};
|
|
|
|
static inline struct netdev_rx_queue *
|
|
__netif_get_rx_queue(struct net_device *dev, unsigned int rxq)
|
|
{
|
|
return dev->_rx + rxq;
|
|
}
|
|
|
|
static inline unsigned int
|
|
get_netdev_rx_queue_index(struct netdev_rx_queue *queue)
|
|
{
|
|
struct net_device *dev = queue->dev;
|
|
int index = queue - dev->_rx;
|
|
|
|
BUG_ON(index >= dev->num_rx_queues);
|
|
return index;
|
|
}
|
|
|
|
int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq);
|
|
void netdev_rx_queue_lease(struct netdev_rx_queue *rxq_dst,
|
|
struct netdev_rx_queue *rxq_src);
|
|
void netdev_rx_queue_unlease(struct netdev_rx_queue *rxq_dst,
|
|
struct netdev_rx_queue *rxq_src);
|
|
#endif /* _LINUX_NETDEV_RX_QUEUE_H */
|