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linux/kernel/bpf
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Breno Leitao 0f08335ade trace: tcp: Add tracepoint for tcp_sendmsg_locked() 
Add a tracepoint to monitor TCP send operations, enabling detailed
visibility into TCP message transmission.

Create a new tracepoint within the tcp_sendmsg_locked function,
capturing traditional fields along with size_goal, which indicates the
optimal data size for a single TCP segment. Additionally, a reference to
the struct sock sk is passed, allowing direct access for BPF programs.
The implementation is largely based on David's patch[1] and suggestions.

Link: https://lore.kernel.org/all/70168c8f-bf52-4279-b4c4-be64527aa1ac@kernel.org/ [1]
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250408-tcpsendmsg-v3-2-208b87064c28@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2025-04-10 18:34:05 -07:00
..
preload bpf: preload: Add MODULE_DESCRIPTION 2025-03-15 11:48:58 -07:00
Kconfig bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of 2024-05-14 00:36:29 -07:00
Makefile rqspinlock: Add entry to Makefile, MAINTAINERS 2025-03-19 08:03:05 -07:00
arena.c bpf_try_alloc_pages 2025-03-30 13:45:28 -07:00
arraymap.c bpf: Remove migrate_{disable|enable} in ->map_for_each_callback 2025-01-08 18:06:35 -08:00
bloom_filter.c bpf: Check bloom filter map value size 2024-03-27 09:56:17 -07:00
bpf_cgrp_storage.c bpf: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage 2025-03-18 19:05:46 -07:00
bpf_inode_storage.c bpf: Disable migration when destroying inode storage 2025-01-08 18:06:36 -08:00
bpf_iter.c bpf: Make every prog keep a copy of ctx_arg_info 2025-02-17 18:47:27 -08:00
bpf_local_storage.c bpf: Remove migrate_{disable|enable} from bpf_selem_free() 2025-01-08 18:06:37 -08:00
bpf_lru_list.c
…
bpf_lru_list.h
…
bpf_lsm.c bpf: lsm: Add two more sleepable hooks 2025-02-13 19:35:31 -08:00
bpf_struct_ops.c bpf: Allow struct_ops prog to return referenced kptr 2025-02-17 18:47:27 -08:00
bpf_task_storage.c bpf: Remove migrate_{disable|enable} from bpf_task_storage_lock helpers 2025-01-08 18:06:36 -08:00
btf.c trace: tcp: Add tracepoint for tcp_sendmsg_locked() 2025-04-10 18:34:05 -07:00
btf_iter.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
btf_relocate.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
cgroup.c bpf: Allow pre-ordering for bpf cgroup progs 2025-03-15 11:48:25 -07:00
cgroup_iter.c
…
core.c bpf: Make perf_event_read_output accessible in all program types. 2025-03-18 10:21:59 -07:00
cpumap.c bpf: cpumap: switch to napi_skb_cache_get_bulk() 2025-02-27 14:03:39 +01:00
cpumask.c bpf: fix missing kdoc string fields in cpumask.c 2025-03-15 11:48:57 -07:00
crypto.c bpf: crypto: make state and IV dynptr nullable 2024-06-13 16:33:04 -07:00
devmap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-12-12 14:19:05 -08:00
disasm.c bpftool: Using the right format specifiers 2025-03-17 13:50:56 -07:00
disasm.h
…
dispatcher.c bpf: Add kernel symbol for struct_ops trampoline 2024-11-12 17:13:46 -08:00
hashtab.c bpf: Convert hashtab.c to rqspinlock 2025-03-19 08:03:05 -07:00
helpers.c bpf-next-6.15 2025-03-30 12:43:03 -07:00
inode.c Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
kmem_cache_iter.c bpf: Add open coded version of kmem_cache iterator 2024-11-01 11:08:32 -07:00
link_iter.c
…
local_storage.c bpf: Replace 8 seq_puts() calls by seq_putc() calls 2024-07-29 12:53:00 -07:00
log.c bpf: Introduce support for bpf_local_irq_{save,restore} 2024-12-04 08:38:29 -08:00
lpm_trie.c bpf: Convert lpm_trie.c to rqspinlock 2025-03-19 08:03:05 -07:00
map_in_map.c bpf: switch maps to CLASS(fd, ...) 2024-08-13 15:58:17 -07:00
map_in_map.h
…
map_iter.c
…
memalloc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2024-11-13 12:52:51 -08:00
mmap_unlock_work.h
…
mprog.c
…
net_namespace.c
…
offload.c net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
percpu_freelist.c bpf: Convert percpu_freelist.c to rqspinlock 2025-03-19 08:03:05 -07:00
percpu_freelist.h bpf: Convert percpu_freelist.c to rqspinlock 2025-03-19 08:03:05 -07:00
prog_iter.c
…
queue_stack_maps.c
…
range_tree.c bpf: Disable migration before calling ops->map_free() 2025-01-08 18:06:36 -08:00
range_tree.h bpf: Introduce range_tree data structure and use it in bpf arena 2024-11-13 13:52:45 -08:00
relo_core.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
reuseport_array.c bpf: Use sockfd_put() helper 2024-08-30 08:57:47 -07:00
ringbuf.c bpf: unify VM_WRITE vs VM_MAYWRITE use in BPF map mmaping logic 2025-01-29 09:49:50 -08:00
rqspinlock.c bpf: Introduce rqspinlock kfuncs 2025-03-19 08:03:06 -07:00
rqspinlock.h rqspinlock: Protect waiters in queue from stalls 2025-03-19 08:03:05 -07:00
stackmap.c bpf: wire up sleepable bpf_get_stack() and bpf_get_task_stack() helpers 2024-09-11 09:58:31 -07:00
syscall.c bpf_try_alloc_pages 2025-03-30 13:45:28 -07:00
sysfs_btf.c btf: Switch vmlinux BTF attribute to sysfs_bin_attr_simple_read() 2025-01-09 10:44:06 +01:00
task_iter.c vfs-6.13.file 2024-11-18 10:30:29 -08:00
tcx.c
…
tnum.c
…
token.c remove pointless includes of <linux/fdtable.h> 2024-10-07 13:34:41 -04:00
trampoline.c bpf: Add kernel symbol for struct_ops trampoline 2024-11-12 17:13:46 -08:00
verifier.c bpf_res_spin_lock 2025-03-30 13:06:27 -07:00