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/linux-6.14.4/include/net/page_pool/
Dtypes.h159 struct page_pool { struct
244 struct page *page_pool_alloc_pages(struct page_pool *pool, gfp_t gfp); argument
245 netmem_ref page_pool_alloc_netmems(struct page_pool *pool, gfp_t gfp);
246 struct page *page_pool_alloc_frag(struct page_pool *pool, unsigned int *offset,
248 netmem_ref page_pool_alloc_frag_netmem(struct page_pool *pool,
251 struct page_pool *page_pool_create(const struct page_pool_params *params);
252 struct page_pool *page_pool_create_percpu(const struct page_pool_params *params,
258 void page_pool_disable_direct_recycling(struct page_pool *pool);
259 void page_pool_destroy(struct page_pool *pool);
260 void page_pool_use_xdp_mem(struct page_pool *pool, void (*disconnect)(void *),
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Dhelpers.h67 bool page_pool_get_stats(const struct page_pool *pool,
92 static inline struct page *page_pool_dev_alloc_pages(struct page_pool *pool) in page_pool_dev_alloc_pages()
109 static inline struct page *page_pool_dev_alloc_frag(struct page_pool *pool, in page_pool_dev_alloc_frag()
118 static inline netmem_ref page_pool_alloc_netmem(struct page_pool *pool, in page_pool_alloc_netmem()
147 static inline netmem_ref page_pool_dev_alloc_netmem(struct page_pool *pool, in page_pool_dev_alloc_netmem()
156 static inline struct page *page_pool_alloc(struct page_pool *pool, in page_pool_alloc()
175 static inline struct page *page_pool_dev_alloc(struct page_pool *pool, in page_pool_dev_alloc()
184 static inline void *page_pool_alloc_va(struct page_pool *pool, in page_pool_alloc_va()
209 static inline void *page_pool_dev_alloc_va(struct page_pool *pool, in page_pool_dev_alloc_va()
225 page_pool_get_dma_dir(const struct page_pool *pool) in page_pool_get_dma_dir()
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/linux-6.14.4/net/core/
Dmp_dmabuf_devmem.h14 int mp_dmabuf_devmem_init(struct page_pool *pool);
16 netmem_ref mp_dmabuf_devmem_alloc_netmems(struct page_pool *pool, gfp_t gfp);
18 void mp_dmabuf_devmem_destroy(struct page_pool *pool);
20 bool mp_dmabuf_devmem_release_page(struct page_pool *pool, netmem_ref netmem);
22 static inline int mp_dmabuf_devmem_init(struct page_pool *pool) in mp_dmabuf_devmem_init()
28 mp_dmabuf_devmem_alloc_netmems(struct page_pool *pool, gfp_t gfp) in mp_dmabuf_devmem_alloc_netmems()
33 static inline void mp_dmabuf_devmem_destroy(struct page_pool *pool) in mp_dmabuf_devmem_destroy()
38 mp_dmabuf_devmem_release_page(struct page_pool *pool, netmem_ref netmem) in mp_dmabuf_devmem_release_page()
Dpage_pool.c82 bool page_pool_get_stats(const struct page_pool *pool, in page_pool_get_stats()
158 static bool page_pool_producer_lock(struct page_pool *pool) in page_pool_producer_lock()
171 static void page_pool_producer_unlock(struct page_pool *pool, in page_pool_producer_unlock()
183 CACHELINE_ASSERT_GROUP_MEMBER(struct page_pool, frag, frag_users); in page_pool_struct_check()
184 CACHELINE_ASSERT_GROUP_MEMBER(struct page_pool, frag, frag_page); in page_pool_struct_check()
185 CACHELINE_ASSERT_GROUP_MEMBER(struct page_pool, frag, frag_offset); in page_pool_struct_check()
186 CACHELINE_ASSERT_GROUP_SIZE(struct page_pool, frag, in page_pool_struct_check()
190 static int page_pool_init(struct page_pool *pool, in page_pool_init()
315 static void page_pool_uninit(struct page_pool *pool) in page_pool_uninit()
333 struct page_pool *
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Dpage_pool_priv.h12 s32 page_pool_inflight(const struct page_pool *pool, bool strict);
14 int page_pool_list(struct page_pool *pool);
15 void page_pool_detached(struct page_pool *pool);
16 void page_pool_unlist(struct page_pool *pool);
41 void page_pool_set_pp_info(struct page_pool *pool, netmem_ref netmem);
46 static inline void page_pool_set_pp_info(struct page_pool *pool, in page_pool_set_pp_info()
Dpage_pool_user.c36 typedef int (*pp_nl_fill_cb)(struct sk_buff *rsp, const struct page_pool *pool,
42 struct page_pool *pool; in netdev_nl_page_pool_get_do()
88 struct page_pool *pool; in netdev_nl_page_pool_get_dump()
114 page_pool_nl_stats_fill(struct sk_buff *rsp, const struct page_pool *pool, in page_pool_nl_stats_fill()
216 page_pool_nl_fill(struct sk_buff *rsp, const struct page_pool *pool, in page_pool_nl_fill()
263 static void netdev_nl_page_pool_event(const struct page_pool *pool, u32 cmd) in netdev_nl_page_pool_event()
312 int page_pool_list(struct page_pool *pool) in page_pool_list()
338 void page_pool_detached(struct page_pool *pool) in page_pool_detached()
346 void page_pool_unlist(struct page_pool *pool) in page_pool_unlist()
360 struct page_pool *pool; in page_pool_check_memory_provider()
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Ddevmem.c340 int mp_dmabuf_devmem_init(struct page_pool *pool) in mp_dmabuf_devmem_init()
360 netmem_ref mp_dmabuf_devmem_alloc_netmems(struct page_pool *pool, gfp_t gfp) in mp_dmabuf_devmem_alloc_netmems()
379 void mp_dmabuf_devmem_destroy(struct page_pool *pool) in mp_dmabuf_devmem_destroy()
386 bool mp_dmabuf_devmem_release_page(struct page_pool *pool, netmem_ref netmem) in mp_dmabuf_devmem_release_page()
/linux-6.14.4/include/trace/events/
Dpage_pool.h3 #define TRACE_SYSTEM page_pool
16 TP_PROTO(const struct page_pool *pool,
22 __field(const struct page_pool *, pool)
44 TP_PROTO(const struct page_pool *pool,
50 __field(const struct page_pool *, pool)
70 TP_PROTO(const struct page_pool *pool,
76 __field(const struct page_pool *, pool)
96 TP_PROTO(const struct page_pool *pool, int new_nid),
101 __field(const struct page_pool *, pool)
/linux-6.14.4/Documentation/networking/
Dpage_pool.rst7 .. kernel-doc:: include/net/page_pool/helpers.h
8 :doc: page_pool allocator
58 .. kernel-doc:: net/core/page_pool.c
61 .. kernel-doc:: include/net/page_pool/types.h
64 .. kernel-doc:: include/net/page_pool/helpers.h
71 .. kernel-doc:: net/core/page_pool.c
112 It takes a pointer to a ``struct page_pool`` and a pointer to a struct
119 .. kernel-doc:: include/net/page_pool/types.h
138 /* internal DMA mapping in page_pool */
145 page_pool = page_pool_create(&pp_params);
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Dnetmem.rst25 1. The driver must support page_pool.
29 3. The driver must use the page_pool netmem APIs for payload memory. The netmem
46 must delegate the dma mapping to the page_pool, which knows when
49 by the driver. The driver must delegate the dma syncing to the page_pool,
55 The netmem returned by the page_pool may be unreadable, in which case
63 netmem or page_pool helpers that abstract this complexity are provided
68 CPU will be done by the page_pool, for others (particularly dmabuf memory
71 the page_pool which will do it correctly.
73 7. Avoid implementing driver-specific recycling on top of the page_pool. Drivers
75 not be backed by a struct page. However, you may hold onto a page_pool
/linux-6.14.4/drivers/net/ethernet/apm/xgene/
Dxgene_enet_main.c672 struct xgene_enet_desc_ring *buf_pool, *page_pool; in xgene_enet_rx_frame() local
690 page_pool = rx_ring->page_pool; in xgene_enet_rx_frame()
719 xgene_enet_free_pagepool(page_pool, raw_desc, exp_desc); in xgene_enet_rx_frame()
729 slots = page_pool->slots - 1; in xgene_enet_rx_frame()
730 head = page_pool->head; in xgene_enet_rx_frame()
741 page = page_pool->frag_page[head]; in xgene_enet_rx_frame()
747 page_pool->frag_page[head] = NULL; in xgene_enet_rx_frame()
751 page_pool->head = head; in xgene_enet_rx_frame()
764 ret = xgene_enet_refill_pagepool(page_pool, NUM_NXTBUFPOOL); in xgene_enet_rx_frame()
1062 struct xgene_enet_desc_ring *buf_pool, *page_pool; in xgene_enet_delete_desc_rings() local
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/linux-6.14.4/drivers/net/vmxnet3/
Dvmxnet3_xdp.c282 page_pool_recycle_direct(rq->page_pool, page); in vmxnet3_run_xdp()
290 page_pool_recycle_direct(rq->page_pool, page); in vmxnet3_run_xdp()
307 page_pool_recycle_direct(rq->page_pool, page); in vmxnet3_run_xdp()
320 page_pool_recycle_direct(rq->page_pool, page); in vmxnet3_build_skb()
345 page = page_pool_alloc_pages(rq->page_pool, GFP_ATOMIC); in vmxnet3_process_xdp_small()
352 xdp_prepare_buff(&xdp, page_address(page), rq->page_pool->p.offset, in vmxnet3_process_xdp_small()
395 rq->page_pool->p.offset, rbi->len, in vmxnet3_process_xdp()
396 page_pool_get_dma_dir(rq->page_pool)); in vmxnet3_process_xdp()
399 xdp_prepare_buff(&xdp, page_address(page), rq->page_pool->p.offset, in vmxnet3_process_xdp()
417 new_data = vmxnet3_pp_get_buff(rq->page_pool, &new_dma_addr, in vmxnet3_process_xdp()
/linux-6.14.4/drivers/net/ethernet/microchip/lan966x/
Dlan966x_fdma.c16 page = page_pool_dev_alloc_pages(rx->page_pool); in lan966x_fdma_rx_dataptr_cb()
58 page_pool_put_full_page(rx->page_pool, in lan966x_fdma_rx_free_pages()
72 page_pool_recycle_direct(rx->page_pool, page); in lan966x_fdma_rx_free_page()
93 rx->page_pool = page_pool_create(&pp_params); in lan966x_fdma_rx_alloc_page_pool()
104 rx->page_pool); in lan966x_fdma_rx_alloc_page_pool()
107 return PTR_ERR_OR_ZERO(rx->page_pool); in lan966x_fdma_rx_alloc_page_pool()
117 return PTR_ERR(rx->page_pool); in lan966x_fdma_rx_alloc()
376 page_pool_recycle_direct(rx->page_pool, in lan966x_fdma_tx_clear_buf()
469 page_pool_recycle_direct(rx->page_pool, page); in lan966x_fdma_rx_get_frame()
812 struct page_pool *page_pool; in lan966x_fdma_reload() local
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/linux-6.14.4/include/net/
Dxdp_priv.h13 struct page_pool *page_pool; member
Dnetmem.h26 struct page_pool *pp;
168 static inline struct page_pool *__netmem_get_pp(netmem_ref netmem) in __netmem_get_pp()
173 static inline struct page_pool *netmem_get_pp(netmem_ref netmem) in netmem_get_pp()
/linux-6.14.4/drivers/net/ethernet/microchip/sparx5/lan969x/
Dlan969x_fdma.c31 page = page_pool_dev_alloc_pages(rx->page_pool); in lan969x_fdma_rx_dataptr_cb()
95 page_pool_put_full_page(rx->page_pool, in lan969x_fdma_free_pages()
145 page_pool_recycle_direct(rx->page_pool, page); in lan969x_fdma_rx_get_frame()
168 rx->page_pool = page_pool_create(&pp_params); in lan969x_fdma_rx_alloc()
169 if (IS_ERR(rx->page_pool)) in lan969x_fdma_rx_alloc()
170 return PTR_ERR(rx->page_pool); in lan969x_fdma_rx_alloc()
403 page_pool_destroy(rx->page_pool); in lan969x_fdma_deinit()
/linux-6.14.4/block/
Dbounce.c32 static mempool_t page_pool; variable
61 ret = mempool_init_page_pool(&page_pool, POOL_SIZE, 0); in init_emergency_pool()
116 mempool_free(bvec->bv_page, &page_pool); in bounce_end_io()
248 bounce_page = mempool_alloc(&page_pool, GFP_NOIO); in __blk_queue_bounce()
/linux-6.14.4/drivers/net/ethernet/google/gve/
Dgve_buffer_mgmt_dqo.c224 page = page_pool_alloc(rx->dqo.page_pool, in gve_alloc_from_page_pool()
238 struct page_pool *gve_rx_create_page_pool(struct gve_priv *priv, in gve_rx_create_page_pool()
259 if (rx->dqo.page_pool) { in gve_free_buffer()
271 if (rx->dqo.page_pool) { in gve_reuse_buffer()
284 if (rx->dqo.page_pool) { in gve_alloc_buffer()
Dgve_rx_dqo.c98 if (rx->dqo.page_pool) in gve_rx_reset_ring_dqo()
117 if (rx->dqo.page_pool) in gve_rx_stop_ring_dqo()
118 page_pool_disable_direct_recycling(rx->dqo.page_pool); in gve_rx_stop_ring_dqo()
147 if (rx->dqo.page_pool) in gve_rx_free_ring_dqo()
177 if (rx->dqo.page_pool) { in gve_rx_free_ring_dqo()
178 page_pool_destroy(rx->dqo.page_pool); in gve_rx_free_ring_dqo()
179 rx->dqo.page_pool = NULL; in gve_rx_free_ring_dqo()
214 struct page_pool *pool; in gve_rx_alloc_ring_dqo()
261 rx->dqo.page_pool = pool; in gve_rx_alloc_ring_dqo()
497 if (rx->dqo.page_pool) in gve_rx_append_frags()
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/linux-6.14.4/drivers/net/netdevsim/
Dnetdev.c374 static int nsim_create_page_pool(struct page_pool **p, struct napi_struct *napi) in nsim_create_page_pool()
385 struct page_pool *pool; in nsim_create_page_pool()
410 err = nsim_create_page_pool(&rq->page_pool, &rq->napi); in nsim_init_napi()
419 page_pool_destroy(ns->rq[i]->page_pool); in nsim_init_napi()
420 ns->rq[i]->page_pool = NULL; in nsim_init_napi()
470 page_pool_destroy(ns->rq[i]->page_pool); in nsim_del_napi()
471 ns->rq[i]->page_pool = NULL; in nsim_del_napi()
635 struct page_pool *pp;
655 err = nsim_create_page_pool(&qmem->rq->page_pool, &qmem->rq->napi); in nsim_queue_mem_alloc()
678 page_pool_destroy(qmem->rq->page_pool); in nsim_queue_mem_free()
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/linux-6.14.4/drivers/net/ethernet/meta/fbnic/
Dfbnic_txrx.h105 struct page_pool *page_pool; member
/linux-6.14.4/drivers/net/ethernet/mellanox/mlxsw/
Dpci.c89 struct page_pool *page_pool; member
399 struct page_pool *page_pool; in mlxsw_pci_rdq_build_skb() local
410 page_pool = cq->u.cq.page_pool; in mlxsw_pci_rdq_build_skb()
411 page_pool_dma_sync_for_cpu(page_pool, pages[page_index], in mlxsw_pci_rdq_build_skb()
436 page_pool_dma_sync_for_cpu(page_pool, page, 0, frag_size); in mlxsw_pci_rdq_build_skb()
454 page = page_pool_dev_alloc_pages(cq->u.cq.page_pool); in mlxsw_pci_rdq_page_alloc()
469 page_pool_put_page(cq->u.cq.page_pool, elem_info->pages[index], -1, in mlxsw_pci_rdq_page_free()
521 page_pool_recycle_direct(cq->u.cq.page_pool, old_pages[i]); in mlxsw_pci_rdq_pages_alloc()
534 page_pool_recycle_direct(cq->u.cq.page_pool, pages[i]); in mlxsw_pci_rdq_pages_recycle()
997 struct page_pool *page_pool; in mlxsw_pci_cq_page_pool_init() local
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/linux-6.14.4/drivers/net/ethernet/marvell/octeontx2/nic/
Dotx2_txrx.h129 struct page_pool *page_pool; member
/linux-6.14.4/drivers/net/ethernet/socionext/
Dnetsec.c286 struct page_pool *page_pool; member
742 page = page_pool_dev_alloc_pages(dring->page_pool); in netsec_alloc_rx_data()
863 page_pool_get_dma_dir(rx_ring->page_pool); in netsec_xdp_queue_one()
922 page_pool_put_page(dring->page_pool, page, sync, true); in netsec_run_xdp()
932 page_pool_put_page(dring->page_pool, page, sync, true); in netsec_run_xdp()
944 page_pool_put_page(dring->page_pool, page, sync, true); in netsec_run_xdp()
966 dma_dir = page_pool_get_dma_dir(dring->page_pool); in netsec_process_rx()
1041 page_pool_put_page(dring->page_pool, page, pkt_len, in netsec_process_rx()
1215 page_pool_put_full_page(dring->page_pool, page, false); in netsec_uninit_pkt_dring()
1227 page_pool_destroy(dring->page_pool); in netsec_uninit_pkt_dring()
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/linux-6.14.4/drivers/net/
Dveth.c70 struct page_pool *page_pool; member
188 if (!priv->rq[i].page_pool) in veth_get_page_pool_stats()
190 page_pool_get_stats(priv->rq[i].page_pool, &pp_stats); in veth_get_page_pool_stats()
733 if (skb_pp_cow_data(rq->page_pool, pskb, XDP_PACKET_HEADROOM)) in veth_convert_skb_to_xdp_buff()
974 rq->page_pool = page_pool_create(&pp_params); in veth_create_page_pool()
975 if (IS_ERR(rq->page_pool)) { in veth_create_page_pool()
976 int err = PTR_ERR(rq->page_pool); in veth_create_page_pool()
978 rq->page_pool = NULL; in veth_create_page_pool()
1019 page_pool_destroy(priv->rq[i].page_pool); in __veth_napi_enable_range()
1020 priv->rq[i].page_pool = NULL; in __veth_napi_enable_range()
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