Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: - Add redirect_neigh() BPF packet redirect helper, allowing to limit stack traversal in common container configs and improving TCP back-pressure. Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain. - Expand netlink policy support and improve policy export to user space. (Ge)netlink core performs request validation according to declared policies. Expand the expressiveness of those policies (min/max length and bitmasks). Allow dumping policies for particular commands. This is used for feature discovery by user space (instead of kernel version parsing or trial and error). - Support IGMPv3/MLDv2 multicast listener discovery protocols in bridge. - Allow more than 255 IPv4 multicast interfaces. - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK packets of TCPv6. - In Multi-patch TCP (MPTCP) support concurrent transmission of data on multiple subflows in a load balancing scenario. Enhance advertising addresses via the RM_ADDR/ADD_ADDR options. - Support SMC-Dv2 version of SMC, which enables multi-subnet deployments. - Allow more calls to same peer in RxRPC. - Support two new Controller Area Network (CAN) protocols - CAN-FD and ISO 15765-2:2016. - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit kernel problem. - Add TC actions for implementing MPLS L2 VPNs. - Improve nexthop code - e.g. handle various corner cases when nexthop objects are removed from groups better, skip unnecessary notifications and make it easier to offload nexthops into HW by converting to a blocking notifier. - Support adding and consuming TCP header options by BPF programs, opening the doors for easy experimental and deployment-specific TCP option use. - Reorganize TCP congestion control (CC) initialization to simplify life of TCP CC implemented in BPF. - Add support for shipping BPF programs with the kernel and loading them early on boot via the User Mode Driver mechanism, hence reusing all the user space infra we have. - Support sleepable BPF programs, initially targeting LSM and tracing. - Add bpf_d_path() helper for returning full path for given 'struct path'. - Make bpf_tail_call compatible with bpf-to-bpf calls. - Allow BPF programs to call map_update_elem on sockmaps. - Add BPF Type Format (BTF) support for type and enum discovery, as well as support for using BTF within the kernel itself (current use is for pretty printing structures). - Support listing and getting information about bpf_links via the bpf syscall. - Enhance kernel interfaces around NIC firmware update. Allow specifying overwrite mask to control if settings etc. are reset during update; report expected max time operation may take to users; support firmware activation without machine reboot incl. limits of how much impact reset may have (e.g. dropping link or not). - Extend ethtool configuration interface to report IEEE-standard counters, to limit the need for per-vendor logic in user space. - Adopt or extend devlink use for debug, monitoring, fw update in many drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx, dpaa2-eth). - In mlxsw expose critical and emergency SFP module temperature alarms. Refactor port buffer handling to make the defaults more suitable and support setting these values explicitly via the DCBNL interface. - Add XDP support for Intel's igb driver. - Support offloading TC flower classification and filtering rules to mscc_ocelot switches. - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as fixed interval period pulse generator and one-step timestamping in dpaa-eth. - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3) offload. - Add Lynx PHY/PCS MDIO module, and convert various drivers which have this HW to use it. Convert mvpp2 to split PCS. - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as 7-port Mediatek MT7531 IP. - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver, and wcn3680 support in wcn36xx. - Improve performance for packets which don't require much offloads on recent Mellanox NICs by 20% by making multiple packets share a descriptor entry. - Move chelsio inline crypto drivers (for TLS and IPsec) from the crypto subtree to drivers/net. Move MDIO drivers out of the phy directory. - Clean up a lot of W=1 warnings, reportedly the actively developed subsections of networking drivers should now build W=1 warning free. - Make sure drivers don't use in_interrupt() to dynamically adapt their code. Convert tasklets to use new tasklet_setup API (sadly this conversion is not yet complete). * tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits) Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" net, sockmap: Don't call bpf_prog_put() on NULL pointer bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo bpf, sockmap: Add locking annotations to iterator netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements net: fix pos incrementment in ipv6_route_seq_next net/smc: fix invalid return code in smcd_new_buf_create() net/smc: fix valid DMBE buffer sizes net/smc: fix use-after-free of delayed events bpfilter: Fix build error with CONFIG_BPFILTER_UMH cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info bpf: Fix register equivalence tracking. rxrpc: Fix loss of final ack on shutdown rxrpc: Fix bundle counting for exclusive connections netfilter: restore NF_INET_NUMHOOKS ibmveth: Identify ingress large send packets. ibmveth: Switch order of ibmveth_helper calls. cxgb4: handle 4-tuple PEDIT to NAT mode translation selftests: Add VRF route leaking tests ...
This commit is contained in:
Linus Torvalds
@@ -3,6 +3,11 @@
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#ifndef _LINUX_BTF_IDS_H
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#define _LINUX_BTF_IDS_H
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struct btf_id_set {
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u32 cnt;
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u32 ids[];
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};
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#ifdef CONFIG_DEBUG_INFO_BTF
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#include <linux/compiler.h> /* for __PASTE */
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@@ -62,7 +67,7 @@ asm( \
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".pushsection " BTF_IDS_SECTION ",\"a\"; \n" \
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"." #scope " " #name "; \n" \
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#name ":; \n" \
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".popsection; \n"); \
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".popsection; \n");
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#define BTF_ID_LIST(name) \
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__BTF_ID_LIST(name, local) \
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@@ -71,6 +76,13 @@ extern u32 name[];
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#define BTF_ID_LIST_GLOBAL(name) \
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__BTF_ID_LIST(name, globl)
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/* The BTF_ID_LIST_SINGLE macro defines a BTF_ID_LIST with
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* a single entry.
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*/
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#define BTF_ID_LIST_SINGLE(name, prefix, typename) \
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BTF_ID_LIST(name) \
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BTF_ID(prefix, typename)
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/*
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* The BTF_ID_UNUSED macro defines 4 zero bytes.
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* It's used when we want to define 'unused' entry
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@@ -88,12 +100,57 @@ asm( \
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".zero 4 \n" \
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".popsection; \n");
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/*
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* The BTF_SET_START/END macros pair defines sorted list of
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* BTF IDs plus its members count, with following layout:
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*
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* BTF_SET_START(list)
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* BTF_ID(type1, name1)
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* BTF_ID(type2, name2)
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* BTF_SET_END(list)
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*
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* __BTF_ID__set__list:
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* .zero 4
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* list:
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* __BTF_ID__type1__name1__3:
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* .zero 4
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* __BTF_ID__type2__name2__4:
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* .zero 4
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*
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*/
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#define __BTF_SET_START(name, scope) \
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asm( \
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".pushsection " BTF_IDS_SECTION ",\"a\"; \n" \
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"." #scope " __BTF_ID__set__" #name "; \n" \
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"__BTF_ID__set__" #name ":; \n" \
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".zero 4 \n" \
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".popsection; \n");
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#define BTF_SET_START(name) \
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__BTF_ID_LIST(name, local) \
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__BTF_SET_START(name, local)
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#define BTF_SET_START_GLOBAL(name) \
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__BTF_ID_LIST(name, globl) \
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__BTF_SET_START(name, globl)
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#define BTF_SET_END(name) \
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asm( \
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".pushsection " BTF_IDS_SECTION ",\"a\"; \n" \
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".size __BTF_ID__set__" #name ", .-" #name " \n" \
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".popsection; \n"); \
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extern struct btf_id_set name;
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#else
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#define BTF_ID_LIST(name) static u32 name[5];
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#define BTF_ID(prefix, name)
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#define BTF_ID_UNUSED
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#define BTF_ID_LIST_GLOBAL(name) u32 name[1];
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#define BTF_ID_LIST_SINGLE(name, prefix, typename) static u32 name[1];
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#define BTF_SET_START(name) static struct btf_id_set name = { 0 };
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#define BTF_SET_START_GLOBAL(name) static struct btf_id_set name = { 0 };
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#define BTF_SET_END(name)
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#endif /* CONFIG_DEBUG_INFO_BTF */
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