From 985fd2145a2932c9d7bda219271e3f453d4607ef Mon Sep 17 00:00:00 2001 From: Tushar Vyavahare Date: Wed, 27 Sep 2023 19:22:36 +0530 Subject: selftests/xsk: Move src_mac and dst_mac to the xsk_socket_info Move the src_mac and dst_mac fields from the ifobject structure to the xsk_socket_info structure to achieve per-socket MAC address assignment. Require this in order to steer traffic to various sockets in subsequent patches. Signed-off-by: Tushar Vyavahare Signed-off-by: Daniel Borkmann Acked-by: Magnus Karlsson Link: https://lore.kernel.org/bpf/20230927135241.2287547-4-tushar.vyavahare@intel.com --- tools/testing/selftests/bpf/xskxceiver.c | 34 +++++++++++++++----------------- tools/testing/selftests/bpf/xskxceiver.h | 7 +++++-- 2 files changed, 21 insertions(+), 20 deletions(-) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index ad1f7f078f5f..e26f942a7b9e 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -104,9 +104,6 @@ #include "../kselftest.h" #include "xsk_xdp_common.h" -static const char *MAC1 = "\x00\x0A\x56\x9E\xEE\x62"; -static const char *MAC2 = "\x00\x0A\x56\x9E\xEE\x61"; - static bool opt_verbose; static bool opt_print_tests; static enum test_mode opt_mode = TEST_MODE_ALL; @@ -159,10 +156,10 @@ static void write_payload(void *dest, u32 pkt_nb, u32 start, u32 size) ptr[i] = htonl(pkt_nb << 16 | (i + start)); } -static void gen_eth_hdr(struct ifobject *ifobject, struct ethhdr *eth_hdr) +static void gen_eth_hdr(struct xsk_socket_info *xsk, struct ethhdr *eth_hdr) { - memcpy(eth_hdr->h_dest, ifobject->dst_mac, ETH_ALEN); - memcpy(eth_hdr->h_source, ifobject->src_mac, ETH_ALEN); + memcpy(eth_hdr->h_dest, xsk->dst_mac, ETH_ALEN); + memcpy(eth_hdr->h_source, xsk->src_mac, ETH_ALEN); eth_hdr->h_proto = htons(ETH_P_LOOPBACK); } @@ -445,6 +442,11 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, ifobj->xsk_arr[j].pkt_stream = test->tx_pkt_stream_default; else ifobj->xsk_arr[j].pkt_stream = test->rx_pkt_stream_default; + + memcpy(ifobj->xsk_arr[j].src_mac, g_mac, ETH_ALEN); + memcpy(ifobj->xsk_arr[j].dst_mac, g_mac, ETH_ALEN); + ifobj->xsk_arr[j].src_mac[5] += ((j * 2) + 0); + ifobj->xsk_arr[j].dst_mac[5] += ((j * 2) + 1); } } @@ -726,16 +728,16 @@ static void pkt_stream_cancel(struct pkt_stream *pkt_stream) pkt_stream->current_pkt_nb--; } -static void pkt_generate(struct ifobject *ifobject, u64 addr, u32 len, u32 pkt_nb, - u32 bytes_written) +static void pkt_generate(struct xsk_socket_info *xsk, struct xsk_umem_info *umem, u64 addr, u32 len, + u32 pkt_nb, u32 bytes_written) { - void *data = xsk_umem__get_data(ifobject->umem->buffer, addr); + void *data = xsk_umem__get_data(umem->buffer, addr); if (len < MIN_PKT_SIZE) return; if (!bytes_written) { - gen_eth_hdr(ifobject, data); + gen_eth_hdr(xsk, data); len -= PKT_HDR_SIZE; data += PKT_HDR_SIZE; @@ -1209,7 +1211,7 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo tx_desc->options = 0; } if (pkt->valid) - pkt_generate(ifobject, tx_desc->addr, tx_desc->len, pkt->pkt_nb, + pkt_generate(xsk, umem, tx_desc->addr, tx_desc->len, pkt->pkt_nb, bytes_written); bytes_written += tx_desc->len; @@ -2120,15 +2122,11 @@ static bool hugepages_present(void) return true; } -static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char *src_mac, - thread_func_t func_ptr) +static void init_iface(struct ifobject *ifobj, thread_func_t func_ptr) { LIBBPF_OPTS(bpf_xdp_query_opts, query_opts); int err; - memcpy(ifobj->dst_mac, dst_mac, ETH_ALEN); - memcpy(ifobj->src_mac, src_mac, ETH_ALEN); - ifobj->func_ptr = func_ptr; err = xsk_load_xdp_programs(ifobj); @@ -2404,8 +2402,8 @@ int main(int argc, char **argv) modes++; } - init_iface(ifobj_rx, MAC1, MAC2, worker_testapp_validate_rx); - init_iface(ifobj_tx, MAC2, MAC1, worker_testapp_validate_tx); + init_iface(ifobj_rx, worker_testapp_validate_rx); + init_iface(ifobj_tx, worker_testapp_validate_tx); test_spec_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]); tx_pkt_stream_default = pkt_stream_generate(ifobj_tx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE); diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h index 06b82b39c59c..3d494adef792 100644 --- a/tools/testing/selftests/bpf/xskxceiver.h +++ b/tools/testing/selftests/bpf/xskxceiver.h @@ -59,6 +59,7 @@ #define HUGEPAGE_SIZE (2 * 1024 * 1024) #define PKT_DUMP_NB_TO_PRINT 16 #define RUN_ALL_TESTS UINT_MAX +#define NUM_MAC_ADDRESSES 4 #define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0) @@ -90,6 +91,8 @@ struct xsk_socket_info { struct pkt_stream *pkt_stream; u32 outstanding_tx; u32 rxqsize; + u8 dst_mac[ETH_ALEN]; + u8 src_mac[ETH_ALEN]; }; struct pkt { @@ -140,8 +143,6 @@ struct ifobject { bool unaligned_supp; bool multi_buff_supp; bool multi_buff_zc_supp; - u8 dst_mac[ETH_ALEN]; - u8 src_mac[ETH_ALEN]; }; struct test_spec { @@ -168,4 +169,6 @@ pthread_mutex_t pacing_mutex = PTHREAD_MUTEX_INITIALIZER; int pkts_in_flight; +static const u8 g_mac[ETH_ALEN] = {0x55, 0x44, 0x33, 0x22, 0x11, 0x00}; + #endif /* XSKXCEIVER_H_ */ -- cgit