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/linux/net/core/
H A Dgro.c3 #include <net/gro.h>
254 static void gro_complete(struct gro_node *gro, struct sk_buff *skb) in gro_complete()
287 gro_normal_one(gro, skb, NAPI_GRO_CB(skb)->count); in gro_complete()
290 static void __gro_flush_chain(struct gro_node *gro, u32 index, bool flush_old) in __gro_flush_chain()
292 struct list_head *head = &gro->hash[index].list; in __gro_flush_chain()
299 gro_complete(gro, skb); in __gro_flush_chain()
300 gro->hash[index].count--; in __gro_flush_chain()
303 if (!gro->hash[index].count) in __gro_flush_chain()
304 __clear_bit(index, &gro->bitmask); in __gro_flush_chain()
308 * gro
253 gro_complete(struct gro_node * gro,struct sk_buff * skb) gro_complete() argument
289 __gro_flush_chain(struct gro_node * gro,u32 index,bool flush_old) __gro_flush_chain() argument
311 __gro_flush(struct gro_node * gro,bool flush_old) __gro_flush() argument
441 gro_flush_oldest(struct gro_node * gro,struct list_head * head) gro_flush_oldest() argument
460 dev_gro_receive(struct gro_node * gro,struct sk_buff * skb) dev_gro_receive() argument
596 gro_skb_finish(struct gro_node * gro,struct sk_buff * skb,gro_result_t ret) gro_skb_finish() argument
622 gro_receive_skb(struct gro_node * gro,struct sk_buff * skb) gro_receive_skb() argument
795 gro_init(struct gro_node * gro) gro_init() argument
809 gro_cleanup(struct gro_node * gro) gro_cleanup() argument
[all...]
/linux/tools/testing/selftests/net/
H A Dudpgro.sh39 ip netns exec "${PEER_NS}" ethtool -K veth1 gro on
91 # fool the GRO engine changing the destination address ...
94 # ... so that GRO will match the UDP_GRO enabled socket, but packets
160 run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
164 # when GRO does not take place
165 run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
172 run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
174 run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
176 run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
178 …run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 1472…
[all …]
H A Dbig_tcp.sh138 ip net exec $ROUTER_NS ethtool -K link1 gro $gw_gro
140 ip net exec $SERVER_NS ethtool -K link3 gro $ser_gro
160 echo "CLI GSO | GW GRO | GW GSO | SER GRO" && \
H A Dgro.sh26 ip netns exec $server_ns ./gro "${ARGS[@]}" "--rx" "--iface" "server" \
30 ip netns exec $client_ns ./gro "${ARGS[@]}" "--iface" "client" \
H A DMakefile41 gro.sh \
133 gro \
H A D.gitignore10 gro
H A Dskf_net_off.sh18 ip netns exec $NS ethtool -K tap1 gro off
/linux/include/net/
H A Dgro.h53 /* portion of the cb set to zero at every gro iteration */
62 /* Used in tunnel GRO receive */
65 /* GRO checksum is valid */
83 /* GRO is done by frag_list pointer chaining. */
213 /* GRO checksum functions. These are logical equivalents of the normal in skb_gro_postpull_rcsum()
214 * checksum functions (in skbuff.h) except that they operate on the GRO in skb_gro_postpull_rcsum()
257 * during GRO. This saves work if we fallback to normal path. in skb_gro_incr_csum_unnecessary()
504 void __gro_flush(struct gro_node *gro, bool flush_old); in gro_receive_network_flush()
506 static inline void gro_flush(struct gro_node *gro, bool flush_old) in gro_receive_network_flush()
508 if (!gro in gro_receive_network_flush()
514 gro_flush(struct gro_node * gro,bool flush_old) gro_flush() argument
528 gro_normal_list(struct gro_node * gro) gro_normal_list() argument
537 gro_flush_normal(struct gro_node * gro,bool flush_old) gro_flush_normal() argument
546 gro_normal_one(struct gro_node * gro,struct sk_buff * skb,int segs) gro_normal_one() argument
[all...]
H A Dbusy_poll.h131 const struct gro_node *gro) in __skb_mark_napi_id() argument
138 skb->napi_id = gro->cached_napi_id; in __skb_mark_napi_id()
145 __skb_mark_napi_id(skb, &napi->gro); in skb_mark_napi_id()
H A Dudp.h606 * Segmentation in UDP receive path is only for UDP GRO, drop udp in udp_rcv_segment()
621 * CHECKSUM_NONE in __udp_gso_segment. UDP GRO indeed builds partial in udp_rcv_segment()
652 /* UDP-lite can't land here - no GRO */ in udp_post_segment_fix_csum()
657 * UDP tunnel(xmit) -> veth (segmentation) -> veth (gro) -> UDP tunnel (rx) in udp_post_segment_fix_csum()
662 * have a valid checksum, as the GRO engine validates the UDP csum
/linux/Documentation/networking/device_drivers/ethernet/intel/
H A Dfm10k.rst89 Generic Receive Offload, aka GRO
91 The driver supports the in-kernel software implementation of GRO. GRO has
93 utilization can be significantly reduced when under large Rx load. GRO is an
94 evolution of the previously-used LRO interface. GRO is able to coalesce
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dxdp_do_redirect.c187 /* Enable GRO */ in test_xdp_do_redirect()
188 SYS(out, "ethtool -K veth_src gro on"); in test_xdp_do_redirect()
189 SYS(out, "ethtool -K veth_dst gro on"); in test_xdp_do_redirect()
192 if (!ASSERT_OK(err, "veth_src bpf_xdp_query gro on")) in test_xdp_do_redirect()
199 "veth_src query_opts.feature_flags gro on")) in test_xdp_do_redirect()
203 if (!ASSERT_OK(err, "veth_dst bpf_xdp_query gro on")) in test_xdp_do_redirect()
210 "veth_dst query_opts.feature_flags gro on")) in test_xdp_do_redirect()
/linux/net/ipv6/
H A Dexthdrs_offload.c3 * IPV6 GSO/GRO offload support
6 * IPV6 Extension Header GSO/GRO support
H A Dtcpv6_offload.c3 * IPV6 GSO/GRO offload support
6 * TCPv6 GSO/GRO support
11 #include <net/gro.h>
H A Dip6_offload.c3 * IPV6 GSO/GRO offload support
18 #include <net/gro.h>
23 /* All GRO functions are always builtin, except UDP over ipv6, which lays in
313 /* Common GRO receive for SIT and IP6IP6 */ in sit_ip6ip6_gro_receive()
328 /* Common GRO receive for SIT and IP6IP6 */ in ip4ip6_gro_receive()
H A Dip6_offload.h3 * IPV6 GSO/GRO offload support
H A Dudp_offload.c3 * IPV6 GSO/GRO offload support
16 #include <net/gro.h>
/linux/net/ipv4/
H A Dgre_offload.c3 * IPV4 GSO/GRO offload support
13 #include <net/gro.h>
147 * for GRO, this is problematic for GSO hence can not be enabled in gre_gro_receive()
148 * here because a GRO pkt may end up in the forwarding path, thus in gre_gro_receive()
H A Dudp_offload.c3 * IPV4 GSO/GRO offload support
10 #include <net/gro.h>
20 * Dummy GRO tunnel callback, exists mainly to avoid dangling/NULL
745 * Under small packet flood GRO count could elsewhere grow a lot in udp_gro_receive_segment()
748 * otherwise complete the GRO packet. in udp_gro_receive_segment()
801 * wasn't detected above, do not GRO. in udp_gro_receive()
813 /* no GRO, be sure flush the current packet */ in udp_gro_receive()
823 /* mark that this skb passed once through the tunnel gro layer */ in udp_gro_receive()
H A Dtcp_offload.c3 * IPV4 GSO/GRO offload support
6 * TCPv4 GSO/GRO support
11 #include <net/gro.h>
345 /* If skb is a GRO packet, make sure its gso_size matches prior packet mss. in tcp_gro_receive()
/linux/Documentation/networking/device_drivers/ethernet/microsoft/
H A Dnetvsc.rst51 Generic Receive Offload, aka GRO
53 The driver supports GRO and it is enabled by default. GRO coalesces
/linux/kernel/bpf/
H A Dcpumap.c37 #include <net/gro.h>
71 struct gro_node gro; member
280 * If the ring is empty, to not hold GRO packets in the stack for too in cpu_map_gro_flush()
285 gro_flush_normal(&rcpu->gro, !empty && HZ >= 1000); in cpu_map_gro_flush()
391 gro_receive_skb(&rcpu->gro, skbs[i]); in cpu_map_kthread_run()
469 gro_init(&rcpu->gro); in __cpu_map_entry_alloc()
498 gro_cleanup(&rcpu->gro); in __cpu_map_entry_alloc()
528 gro_cleanup(&rcpu->gro); in __cpu_map_entry_free()
/linux/tools/testing/selftests/bpf/
H A Dtest_xdp_features.sh26 ethtool -K v1 gro on
28 ip netns exec ${NS} ethtool -K v0 gro on
/linux/include/linux/
H A Dnetdev_features.h83 NETIF_F_GRO_FRAGLIST_BIT, /* Fraglist GRO */
86 NETIF_F_GRO_UDP_FWD_BIT, /* Allow UDP GRO for forwarding */
110 #define NETIF_F_GRO __NETIF_F(GRO)
H A Dudp.h39 UDP_FLAGS_GRO_ENABLED, /* Request GRO aggregation */
91 /* GRO functions for UDP socket */
114 * Accounting for the tunnel GRO fastpath.

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