| /linux/include/net/libeth/ |
| H A D | xsk.h | 7 #include <net/libeth/xdp.h>
19 * @bq: XDP Tx bulk to queue the head frag to
20 * @xdp: XSk buffer with the head to queue
25 struct libeth_xdp_buff *xdp) in libeth_xsk_tx_queue_head() argument
28 .xsk = xdp, in libeth_xsk_tx_queue_head()
29 __libeth_xdp_tx_len(xdp->base.data_end - xdp->data, in libeth_xsk_tx_queue_head()
33 if (likely(!xdp_buff_has_frags(&xdp->base))) in libeth_xsk_tx_queue_head()
43 * @bq: XDP Tx bulk to queue the frag to
57 * @bq: XDP Tx bulk to queue the frame to
58 * @xdp: XSk buffer to queue
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| H A D | xdp.h | 43 * to quickly get frame metadata from xdpmo and driver buff-to-xdp callbacks
58 offsetof(struct xdp_buff_xsk, xdp.data));
114 * Return: number of XDP Tx queues the device needs to use.
317 * struct libeth_xdp_tx_frame - represents one XDP Tx element
324 * @xsk: ``XDP_TX`` for XSk, XDP buffer for any frag
368 * struct libeth_xdp_tx_bulk - XDP Tx frame bulk for bulk sending
369 * @prog: corresponding active XDP program, %NULL for .ndo_xdp_xmit()
372 * @act_mask: Rx only, mask of all the XDP prog verdicts for that NAPI session
376 * All XDP Tx operations except XSk xmit queue each frame to the bulk first
434 * struct libeth_xdp_tx_desc - abstraction for an XDP Tx descriptor
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| /linux/include/net/ |
| H A D | xdp_sock_drv.h | 85 static inline dma_addr_t xsk_buff_xdp_get_dma(struct xdp_buff *xdp) in xsk_buff_xdp_get_dma() argument
87 struct xdp_buff_xsk *xskb = container_of(xdp, struct xdp_buff_xsk, xdp); in xsk_buff_xdp_get_dma()
92 static inline dma_addr_t xsk_buff_xdp_get_frame_dma(struct xdp_buff *xdp) in xsk_buff_xdp_get_frame_dma() argument
94 struct xdp_buff_xsk *xskb = container_of(xdp, struct xdp_buff_xsk, xdp); in xsk_buff_xdp_get_frame_dma()
110 static inline u32 xsk_buff_alloc_batch(struct xsk_buff_pool *pool, struct xdp_buff **xdp, u32 max) in xsk_buff_alloc_batch() argument
112 return xp_alloc_batch(pool, xdp, max); in xsk_buff_alloc_batch()
120 static inline void xsk_buff_free(struct xdp_buff *xdp) in xsk_buff_free() argument
122 struct xdp_buff_xsk *xskb = container_of(xdp, struct xdp_buff_xsk, xdp); in xsk_buff_free()
126 if (likely(!xdp_buff_has_frags(xdp))) in xsk_buff_free()
134 xdp_get_shared_info_from_buff(xdp)->nr_frags = 0; in xsk_buff_free()
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| /linux/tools/testing/selftests/bpf/progs/ |
| H A D | xdp_features.c | 65 xdp_process_echo_packet(struct xdp_md *xdp, bool dut) in xdp_process_echo_packet() argument
67 void *data_end = (void *)(long)xdp->data_end; in xdp_process_echo_packet()
68 void *data = (void *)(long)xdp->data; in xdp_process_echo_packet()
135 xdp_update_stats(struct xdp_md *xdp, bool tx, bool dut) in xdp_update_stats() argument
139 if (xdp_process_echo_packet(xdp, tx)) in xdp_update_stats()
155 SEC("xdp")
156 int xdp_tester_check_tx(struct xdp_md *xdp) in xdp_tester_check_tx() argument
158 xdp_update_stats(xdp, true, false); in xdp_tester_check_tx()
163 SEC("xdp")
164 int xdp_tester_check_rx(struct xdp_md *xdp) in xdp_tester_check_rx() argument
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| H A D | verifier_xdp_direct_packet_access.c | 8 SEC("xdp")
9 __description("XDP pkt read, pkt_end mangling, bad access 1")
29 SEC("xdp")
30 __description("XDP pkt read, pkt_end mangling, bad access 2")
50 SEC("xdp")
51 __description("XDP pkt read, pkt_data' > pkt_end, corner case, good access")
70 SEC("xdp")
71 __description("XDP pkt read, pkt_data' > pkt_end, bad access 1")
91 SEC("xdp")
92 __description("XDP pkt read, pkt_data' > pkt_end, bad access 2")
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| H A D | test_xdp_do_redirect.c | 11 * @MARK_IN: frame is being processed by the input XDP prog.
28 SEC("xdp")
29 int xdp_redirect(struct xdp_md *xdp) in xdp_redirect() argument
31 __u32 *metadata = (void *)(long)xdp->data_meta; in xdp_redirect()
32 void *data_end = (void *)(long)xdp->data_end; in xdp_redirect()
33 void *data = (void *)(long)xdp->data; in xdp_redirect()
41 if (xdp->ingress_ifindex != (__u32)ifindex_in) in xdp_redirect()
55 if (bpf_xdp_adjust_meta(xdp, sizeof(__u64))) in xdp_redirect()
85 SEC("xdp")
86 int xdp_count_pkts(struct xdp_md *xdp) in xdp_count_pkts() argument
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| H A D | xsk_xdp_progs.c | 22 SEC("xdp.frags") int xsk_def_prog(struct xdp_md *xdp) in xsk_def_prog()
27 SEC("xdp.frags") int xsk_xdp_drop(struct xdp_md *xdp) in xsk_xdp_drop()
36 SEC("xdp.frags") int xsk_xdp_populate_metadata(struct xdp_md *xdp) in xsk_xdp_populate_metadata()
43 err = bpf_xdp_adjust_meta(xdp, -(int)sizeof(struct xdp_info)); in xsk_xdp_populate_metadata()
47 data = (void *)(long)xdp->data; in xsk_xdp_populate_metadata()
48 data_meta = (void *)(long)xdp->data_meta; in xsk_xdp_populate_metadata()
59 SEC("xdp") in in xsk_xdp_shared_umem()
19 xsk_def_prog(struct xdp_md * xdp) xsk_def_prog() argument
24 xsk_xdp_drop(struct xdp_md * xdp) xsk_xdp_drop() argument
33 xsk_xdp_populate_metadata(struct xdp_md * xdp) xsk_xdp_populate_metadata() argument
56 xsk_xdp_shared_umem(struct xdp_md * xdp) xsk_xdp_shared_umem() argument
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| H A D | test_xdp.c | 79 static __always_inline int handle_ipv4(struct xdp_md *xdp) in handle_ipv4() argument
81 void *data_end = (void *)(long)xdp->data_end; in handle_ipv4()
82 void *data = (void *)(long)xdp->data; in handle_ipv4()
112 if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr))) in handle_ipv4()
115 data = (void *)(long)xdp->data; in handle_ipv4()
116 data_end = (void *)(long)xdp->data_end; in handle_ipv4()
152 static __always_inline int handle_ipv6(struct xdp_md *xdp) in handle_ipv6() argument
154 void *data_end = (void *)(long)xdp->data_end; in handle_ipv6()
155 void *data = (void *)(long)xdp->data; in handle_ipv6()
182 if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr))) in handle_ipv6()
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| H A D | test_xdp_loop.c | 75 static __always_inline int handle_ipv4(struct xdp_md *xdp) in handle_ipv4() argument
77 void *data_end = (void *)(long)xdp->data_end; in handle_ipv4()
78 void *data = (void *)(long)xdp->data; in handle_ipv4()
108 if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr))) in handle_ipv4()
111 data = (void *)(long)xdp->data; in handle_ipv4()
112 data_end = (void *)(long)xdp->data_end; in handle_ipv4()
148 static __always_inline int handle_ipv6(struct xdp_md *xdp) in handle_ipv6() argument
150 void *data_end = (void *)(long)xdp->data_end; in handle_ipv6()
151 void *data = (void *)(long)xdp->data; in handle_ipv6()
178 if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr))) in handle_ipv6()
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| /linux/Documentation/bpf/ |
| H A D | redirect.rst | 25 :doc: xdp redirect
29 those that do, not all of them support non-linear frames. Non-linear xdp
41 The following bpftrace command can be used to capture and count all XDP tracepoints:
45 sudo bpftrace -e 'tracepoint:xdp:* { @cnt[probe] = count(); }'
49 @cnt[tracepoint:xdp:mem_connect]: 18
50 @cnt[tracepoint:xdp:mem_disconnect]: 18
51 @cnt[tracepoint:xdp:xdp_exception]: 19605
52 @cnt[tracepoint:xdp:xdp_devmap_xmit]: 1393604
53 @cnt[tracepoint:xdp:xdp_redirect]: 22292200
56 The various xdp tracepoints can be found in ``source/include/trace/events/xdp.h``
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| /linux/drivers/net/ethernet/broadcom/bnxt/ |
| H A D | bnxt_xdp.c | 29 struct xdp_buff *xdp) in bnxt_xmit_bd() argument
39 if (xdp && xdp_buff_has_frags(xdp)) { in bnxt_xmit_bd()
40 sinfo = xdp_get_shared_info_from_buff(xdp); in bnxt_xmit_bd()
48 if (xdp) in bnxt_xmit_bd()
49 tx_buf->page = virt_to_head_page(xdp->data); in bnxt_xmit_bd()
97 struct xdp_buff *xdp) in __bnxt_xmit_xdp() argument
101 tx_buf = bnxt_xmit_bd(bp, txr, mapping, len, xdp); in __bnxt_xmit_xdp()
184 struct xdp_buff *xdp) in bnxt_xdp_buff_init() argument
199 xdp_init_buff(xdp, buflen, &rxr->xdp_rxq); in bnxt_xdp_buff_init()
200 xdp_prepare_buff(xdp, data_ptr - offset, offset, len, true); in bnxt_xdp_buff_init()
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| /linux/net/core/ |
| H A D | xdp.c | 2 /* net/core/xdp.c
21 #include <net/xdp.h>
23 #include <trace/events/xdp.h>
372 * xdp_reg_page_pool - register &page_pool as a memory provider for XDP
375 * Can be used to register pools manually without connecting to any XDP RxQ
376 * info, so that the XDP layer will be aware of them. Then, they can be
409 * @xdp_rxq: XDP RxQ info to attach the pool to
427 /* XDP RX runs under NAPI protection, and in different delivery error
434 bool napi_direct, struct xdp_buff *xdp) in __xdp_return() argument
455 xsk_buff_free(xdp); in __xdp_return()
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| /linux/drivers/net/ethernet/intel/libeth/ |
| H A D | xdp.c | 8 #include <net/libeth/xdp.h>
29 netdev_warn(dev, "XDPSQ sharing enabled, possible XDP Tx slowdown\n"); in __libeth_xdpsq_get()
114 * libeth_xdp_tx_exception - handle Tx exceptions of XDP frames
115 * @bq: XDP Tx frame bulk
120 * Reports XDP Tx exceptions, frees the frames that won't be sent or adjust
205 * @src: source XDP buffer
208 * Use the fields from the passed XDP buffer to initialize the stash on the
228 LIBETH_XDP_ONSTACK_BUFF(xdp); in __libeth_xdp_return_stash()
230 libeth_xdp_load_stash(xdp, stash); in __libeth_xdp_return_stash()
231 libeth_xdp_return_buff_slow(xdp); in __libeth_xdp_return_stash()
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| H A D | xsk.c | 31 * @xdp: buffer to free
36 void libeth_xsk_buff_free_slow(struct libeth_xdp_buff *xdp) in libeth_xsk_buff_free_slow() argument
38 xsk_buff_free(&xdp->base); in libeth_xsk_buff_free_slow()
45 * @xdp: frag buffer
54 struct libeth_xdp_buff *xdp) in libeth_xsk_buff_add_frag() argument
56 if (!xsk_buff_add_frag(&head->base, &xdp->base)) in libeth_xsk_buff_add_frag()
62 libeth_xsk_buff_free_slow(xdp); in libeth_xsk_buff_add_frag()
72 * @xdp: buffer to account
78 const struct libeth_xdp_buff *xdp) in libeth_xsk_buff_stats_frags() argument
80 libeth_xdp_buff_stats_frags(rs, xdp); in libeth_xsk_buff_stats_frags()
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| /linux/Documentation/networking/ |
| H A D | xdp-rx-metadata.rst | 4 XDP RX Metadata
7 This document describes how an eXpress Data Path (XDP) program can access
14 XDP has access to a set of kfuncs to manipulate the metadata in an XDP frame.
16 implement these kfuncs. The set of kfuncs is declared in ``include/net/xdp.h``
22 .. kernel-doc:: net/core/xdp.c
25 .. kernel-doc:: net/core/xdp.c
28 .. kernel-doc:: net/core/xdp.c
31 An XDP program can use these kfuncs to read the metadata into stack
33 consumers, an XDP program can store it into the metadata area carried
42 Within an XDP frame, the metadata layout (accessed via ``xdp_buff``) is
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| /linux/drivers/net/vmxnet3/ |
| H A D | vmxnet3_xdp.c | 48 NL_SET_ERR_MSG_FMT_MOD(extack, "MTU %u too large for XDP", in vmxnet3_xdp_set()
54 NL_SET_ERR_MSG_MOD(extack, "LRO is not supported with XDP"); in vmxnet3_xdp_set()
86 "failed to re-create rx queues for XDP."); in vmxnet3_xdp_set()
92 "failed to activate device for XDP."); in vmxnet3_xdp_set()
100 /* This is the main xdp call used by kernel to set/unset eBPF program. */
152 } else { /* XDP buffer from page pool */ in vmxnet3_xdp_xmit_frame()
261 vmxnet3_run_xdp(struct vmxnet3_rx_queue *rq, struct xdp_buff *xdp, in vmxnet3_run_xdp() argument
270 act = bpf_prog_run_xdp(prog, xdp); in vmxnet3_run_xdp()
271 page = virt_to_page(xdp->data_hard_start); in vmxnet3_run_xdp()
277 err = xdp_do_redirect(rq->adapter->netdev, xdp, prog); in vmxnet3_run_xdp()
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| /linux/drivers/net/ethernet/intel/igb/ |
| H A D | igb_xsk.c | 6 #include <net/xdp.h>
176 static u16 igb_fill_rx_descs(struct xsk_buff_pool *pool, struct xdp_buff **xdp, in igb_fill_rx_descs() argument
187 buffs = xsk_buff_alloc_batch(pool, xdp, count); in igb_fill_rx_descs()
189 dma = xsk_buff_xdp_get_dma(*xdp); in igb_fill_rx_descs()
194 xdp++; in igb_fill_rx_descs()
207 struct xdp_buff **xdp; in igb_alloc_rx_buffers_zc() local
210 xdp = &rx_ring->rx_buffer_info_zc[ntu]; in igb_alloc_rx_buffers_zc()
213 nb_buffs_extra = igb_fill_rx_descs(xsk_pool, xdp, rx_desc, in igb_alloc_rx_buffers_zc()
220 xdp = rx_ring->rx_buffer_info_zc; in igb_alloc_rx_buffers_zc()
225 nb_buffs = igb_fill_rx_descs(xsk_pool, xdp, rx_desc, count); in igb_alloc_rx_buffers_zc()
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| /linux/drivers/net/ethernet/intel/ice/ |
| H A D | ice_xsk.c | 6 #include <net/libeth/xdp.h>
8 #include <net/xdp.h>
249 * @xdp: SW ring of xdp_buff that will hold the buffers
260 static u16 ice_fill_rx_descs(struct xsk_buff_pool *pool, struct xdp_buff **xdp, in ice_fill_rx_descs() argument
267 buffs = xsk_buff_alloc_batch(pool, xdp, count); in ice_fill_rx_descs()
269 dma = xsk_buff_xdp_get_dma(*xdp); in ice_fill_rx_descs()
274 xdp++; in ice_fill_rx_descs()
299 struct xdp_buff **xdp; in __ice_alloc_rx_bufs_zc() local
302 xdp = ice_xdp_buf(rx_ring, ntu); in __ice_alloc_rx_bufs_zc()
305 nb_buffs_extra = ice_fill_rx_descs(xsk_pool, xdp, rx_desc, in __ice_alloc_rx_bufs_zc()
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| /linux/drivers/net/ethernet/intel/ixgbe/ |
| H A D | ixgbe_xsk.c | 6 #include <net/xdp.h>
99 struct xdp_buff *xdp) in ixgbe_run_xdp_zc() argument
108 act = bpf_prog_run_xdp(xdp_prog, xdp); in ixgbe_run_xdp_zc()
111 err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); in ixgbe_run_xdp_zc()
125 xdpf = xdp_convert_buff_to_frame(xdp); in ixgbe_run_xdp_zc()
168 bi->xdp = xsk_buff_alloc(rx_ring->xsk_pool); in ixgbe_alloc_rx_buffers_zc()
169 if (!bi->xdp) { in ixgbe_alloc_rx_buffers_zc()
174 dma = xsk_buff_xdp_get_dma(bi->xdp); in ixgbe_alloc_rx_buffers_zc()
214 const struct xdp_buff *xdp) in ixgbe_construct_skb_zc() argument
216 unsigned int totalsize = xdp->data_end - xdp->data_meta; in ixgbe_construct_skb_zc()
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| /linux/drivers/net/hyperv/ |
| H A D | netvsc_bpf.c | 17 #include <net/xdp.h>
25 struct xdp_buff *xdp) in netvsc_run_xdp() argument
35 xdp->data_hard_start = NULL; in netvsc_run_xdp()
56 xdp_init_buff(xdp, PAGE_SIZE, &nvchan->xdp_rxq); in netvsc_run_xdp()
57 xdp_prepare_buff(xdp, page_address(page), NETVSC_XDP_HDRM, len, false); in netvsc_run_xdp()
59 memcpy(xdp->data, data, len); in netvsc_run_xdp()
61 act = bpf_prog_run_xdp(prog, xdp); in netvsc_run_xdp()
73 if (!xdp_do_redirect(ndev, xdp, prog)) { in netvsc_run_xdp()
107 xdp->data_hard_start = NULL; in netvsc_run_xdp()
138 netdev_err(dev, "XDP: mtu:%u too large, buf_max:%u\n", in netvsc_xdp_set()
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| /linux/tools/testing/selftests/drivers/net/ |
| H A D | xdp.py | 5 This file contains tests to verify native XDP support in network drivers.
7 directory, with each test focusing on a specific aspect of XDP functionality.
23 """Enum for XDP configuration options."""
31 """Enum for XDP actions."""
40 """Enum for XDP statistics."""
53 xdp_sec: str = "xdp" # XDP section name (e.g., "xdp" or "xdp.frags")
101 Loads an XDP progra
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| /linux/drivers/net/ethernet/microchip/lan966x/ |
| H A D | lan966x_xdp.c | 9 static int lan966x_xdp_setup(struct net_device *dev, struct netdev_bpf *xdp) in lan966x_xdp_setup() argument
18 NL_SET_ERR_MSG_MOD(xdp->extack, in lan966x_xdp_setup()
19 "Allow to set xdp only when using fdma"); in lan966x_xdp_setup()
24 old_prog = xchg(&port->xdp_prog, xdp->prog); in lan966x_xdp_setup()
43 int lan966x_xdp(struct net_device *dev, struct netdev_bpf *xdp) in lan966x_xdp() argument
45 switch (xdp->command) { in lan966x_xdp()
47 return lan966x_xdp_setup(dev, xdp); in lan966x_xdp()
79 struct xdp_buff xdp; in lan966x_xdp_run() local
82 xdp_init_buff(&xdp, PAGE_SIZE << lan966x->rx.page_order, in lan966x_xdp_run()
84 xdp_prepare_buff(&xdp, page_address(page), in lan966x_xdp_run()
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| /linux/samples/bpf/ |
| H A D | xdp_tx_iptunnel_kern.c | 77 static __always_inline int handle_ipv4(struct xdp_md *xdp) in handle_ipv4() argument
79 void *data_end = (void *)(long)xdp->data_end; in handle_ipv4()
80 void *data = (void *)(long)xdp->data; in handle_ipv4()
112 if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr))) in handle_ipv4()
115 data = (void *)(long)xdp->data; in handle_ipv4()
116 data_end = (void *)(long)xdp->data_end; in handle_ipv4()
152 static __always_inline int handle_ipv6(struct xdp_md *xdp) in handle_ipv6() argument
154 void *data_end = (void *)(long)xdp->data_end; in handle_ipv6()
155 void *data = (void *)(long)xdp->data; in handle_ipv6()
184 if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr))) in handle_ipv6()
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| /linux/tools/bpf/bpftool/Documentation/ |
| H A D | bpftool-net.rst | 32 | *ATTACH_TYPE* := { **xdp** | **xdpgeneric** | **xdpdrv** | **xdpoffload** | **tcx_ingress** | **tcx_egress** }
39 Currently, device driver xdp attachments, tcx, netkit and old-style tc
52 The current output will start with all xdp program attachments, followed by
54 flow_dissector and finally netfilter programs. Both xdp programs and
66 **xdp** - try native XDP and fallback to generic XDP if NIC driver does not support it;
67 **xdpgeneric** - Generic XDP. runs at generic XDP hook when packet already enters receive path as skb;
68 **xdpdrv** - Native XDP
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| /linux/include/trace/events/ |
| H A D | xdp.h | 3 #define TRACE_SYSTEM xdp
12 #include <net/xdp.h>
32 const struct bpf_prog *xdp, u32 act),
34 TP_ARGS(dev, xdp, act),
43 __entry->prog_id = xdp->aux->id;
93 const struct bpf_prog *xdp,
98 TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index),
124 __entry->prog_id = xdp->aux->id;
143 const struct bpf_prog *xdp,
147 TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index)
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