linux-stable/tools/testing/selftests/bpf/xdpxceiver.h
Magnus Karlsson e34087fc00 selftests: xsk: Add frame_headroom test
Add a test for the frame_headroom feature that can be set on the
umem. The logic added validates that all offsets in all tests and
packets are valid, not just the ones that have a specifically
configured frame_headroom.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210922075613.12186-14-magnus.karlsson@gmail.com
2021-09-28 00:18:35 +02:00

162 lines
3.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0
* Copyright(c) 2020 Intel Corporation.
*/
#ifndef XDPXCEIVER_H_
#define XDPXCEIVER_H_
#ifndef SOL_XDP
#define SOL_XDP 283
#endif
#ifndef AF_XDP
#define AF_XDP 44
#endif
#ifndef PF_XDP
#define PF_XDP AF_XDP
#endif
#define MAX_INTERFACES 2
#define MAX_INTERFACE_NAME_CHARS 7
#define MAX_INTERFACES_NAMESPACE_CHARS 10
#define MAX_SOCKETS 2
#define MAX_TEST_NAME_SIZE 32
#define MAX_TEARDOWN_ITER 10
#define PKT_HDR_SIZE (sizeof(struct ethhdr) + sizeof(struct iphdr) + \
sizeof(struct udphdr))
#define MIN_PKT_SIZE 64
#define ETH_FCS_SIZE 4
#define PKT_SIZE (MIN_PKT_SIZE - ETH_FCS_SIZE)
#define IP_PKT_SIZE (PKT_SIZE - sizeof(struct ethhdr))
#define IP_PKT_VER 0x4
#define IP_PKT_TOS 0x9
#define UDP_PKT_SIZE (IP_PKT_SIZE - sizeof(struct iphdr))
#define UDP_PKT_DATA_SIZE (UDP_PKT_SIZE - sizeof(struct udphdr))
#define USLEEP_MAX 10000
#define SOCK_RECONF_CTR 10
#define BATCH_SIZE 64
#define POLL_TMOUT 1000
#define DEFAULT_PKT_CNT (4 * 1024)
#define DEFAULT_UMEM_BUFFERS (DEFAULT_PKT_CNT / 4)
#define UMEM_SIZE (DEFAULT_UMEM_BUFFERS * XSK_UMEM__DEFAULT_FRAME_SIZE)
#define RX_FULL_RXQSIZE 32
#define UMEM_HEADROOM_TEST_SIZE 128
#define XSK_UMEM__INVALID_FRAME_SIZE (XSK_UMEM__DEFAULT_FRAME_SIZE + 1)
#define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0)
enum test_mode {
TEST_MODE_SKB,
TEST_MODE_DRV,
TEST_MODE_MAX
};
enum test_type {
TEST_TYPE_RUN_TO_COMPLETION,
TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME,
TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT,
TEST_TYPE_POLL,
TEST_TYPE_UNALIGNED,
TEST_TYPE_ALIGNED_INV_DESC,
TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME,
TEST_TYPE_UNALIGNED_INV_DESC,
TEST_TYPE_HEADROOM,
TEST_TYPE_TEARDOWN,
TEST_TYPE_BIDI,
TEST_TYPE_STATS,
TEST_TYPE_BPF_RES,
TEST_TYPE_MAX
};
enum stat_test_type {
STAT_TEST_RX_DROPPED,
STAT_TEST_TX_INVALID,
STAT_TEST_RX_FULL,
STAT_TEST_RX_FILL_EMPTY,
STAT_TEST_TYPE_MAX
};
static bool opt_pkt_dump;
static int test_type;
static bool opt_verbose;
static int stat_test_type;
struct xsk_umem_info {
struct xsk_ring_prod fq;
struct xsk_ring_cons cq;
struct xsk_umem *umem;
u32 num_frames;
u32 frame_headroom;
void *buffer;
u32 frame_size;
bool unaligned_mode;
};
struct xsk_socket_info {
struct xsk_ring_cons rx;
struct xsk_ring_prod tx;
struct xsk_umem_info *umem;
struct xsk_socket *xsk;
u32 outstanding_tx;
u32 rxqsize;
};
struct pkt {
u64 addr;
u32 len;
u32 payload;
bool valid;
};
struct pkt_stream {
u32 nb_pkts;
u32 rx_pkt_nb;
struct pkt *pkts;
bool use_addr_for_fill;
};
typedef void *(*thread_func_t)(void *arg);
struct ifobject {
char ifname[MAX_INTERFACE_NAME_CHARS];
char nsname[MAX_INTERFACES_NAMESPACE_CHARS];
struct xsk_socket_info *xsk;
struct xsk_socket_info *xsk_arr;
struct xsk_umem_info *umem;
struct xsk_umem_info *umem_arr;
thread_func_t func_ptr;
struct pkt_stream *pkt_stream;
int ns_fd;
u32 dst_ip;
u32 src_ip;
u32 xdp_flags;
u32 bind_flags;
u16 src_port;
u16 dst_port;
bool tx_on;
bool rx_on;
bool use_poll;
bool pacing_on;
u8 dst_mac[ETH_ALEN];
u8 src_mac[ETH_ALEN];
};
struct test_spec {
struct ifobject *ifobj_tx;
struct ifobject *ifobj_rx;
struct pkt_stream *pkt_stream_default;
u16 total_steps;
u16 current_step;
u16 nb_sockets;
char name[MAX_TEST_NAME_SIZE];
};
pthread_barrier_t barr;
pthread_mutex_t pacing_mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t pacing_cond = PTHREAD_COND_INITIALIZER;
u32 pkts_in_flight;
#endif /* XDPXCEIVER_H */