diff mbox series

[RFC,13/17] libbpf: Add support for dequeue program type and PIFO map type

Message ID 20220713111430.134810-14-toke@redhat.com (mailing list archive)
State RFC
Delegated to: BPF
Headers show
Series xdp: Add packet queueing and scheduling capabilities | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR pending PR summary
bpf/vmtest-bpf-next-VM_Test-2 pending Logs for Kernel LATEST on ubuntu-latest with llvm-15
bpf/vmtest-bpf-next-VM_Test-3 pending Logs for Kernel LATEST on z15 with gcc
bpf/vmtest-bpf-next-VM_Test-1 fail Logs for Kernel LATEST on ubuntu-latest with gcc
netdev/tree_selection success Guessed tree name to be net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 12 of 12 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 24 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Toke Høiland-Jørgensen July 13, 2022, 11:14 a.m. UTC 
Add support for a 'dequeue' section type to specify dequeue type programs
and add support for dequeue program and PIFO map to probing code.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
 tools/lib/bpf/libbpf.c        | 1 +
 tools/lib/bpf/libbpf_probes.c | 5 +++++
 2 files changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index cb49408eb298..8553bb8369e0 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -8431,6 +8431,7 @@  static const struct bpf_sec_def section_defs[] = {
 	SEC_DEF("xdp/cpumap",		XDP, BPF_XDP_CPUMAP, SEC_ATTACHABLE),
 	SEC_DEF("xdp.frags",		XDP, BPF_XDP, SEC_XDP_FRAGS),
 	SEC_DEF("xdp",			XDP, BPF_XDP, SEC_ATTACHABLE_OPT),
+	SEC_DEF("dequeue",		DEQUEUE, 0, SEC_NONE),
 	SEC_DEF("perf_event",		PERF_EVENT, 0, SEC_NONE),
 	SEC_DEF("lwt_in",		LWT_IN, 0, SEC_NONE),
 	SEC_DEF("lwt_out",		LWT_OUT, 0, SEC_NONE),
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c
index 0b5398786bf3..a9ead2d55264 100644
--- a/tools/lib/bpf/libbpf_probes.c
+++ b/tools/lib/bpf/libbpf_probes.c
@@ -97,6 +97,7 @@  static int probe_prog_load(enum bpf_prog_type prog_type,
 	case BPF_PROG_TYPE_SK_REUSEPORT:
 	case BPF_PROG_TYPE_FLOW_DISSECTOR:
 	case BPF_PROG_TYPE_CGROUP_SYSCTL:
+	case BPF_PROG_TYPE_DEQUEUE:
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -244,6 +245,10 @@  static int probe_map_create(enum bpf_map_type map_type)
 		key_size = 0;
 		max_entries = 1;
 		break;
+	case BPF_MAP_TYPE_PIFO_GENERIC:
+	case BPF_MAP_TYPE_PIFO_XDP:
+		opts.map_extra = 8;
+		break;
 	case BPF_MAP_TYPE_HASH:
 	case BPF_MAP_TYPE_ARRAY:
 	case BPF_MAP_TYPE_PROG_ARRAY: