selftests/bpf: Add a test for objects stuck in free_by_rcu_ttracegrafted

Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first
free_bulk() starts RCU tasks trace GP and the rest of the elements are
freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear
in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and
waiting_for_gp_ttrace lists are empty.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/include/uapi/fwctl/bnxt.h b/include/uapi/fwctl/bnxt.h
new file mode 100644
index 000000000..398c1ad0c
--- /dev/null
+++ b/include/uapi/fwctl/bnxt.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright (c) 2026, Broadcom Inc
+ */
+
+#ifndef _UAPI_FWCTL_BNXT_H_
+#define _UAPI_FWCTL_BNXT_H_
+
+#include <linux/types.h>
+
+enum fwctl_bnxt_commands {
+	FWCTL_BNXT_INLINE_COMMANDS = 0,
+	FWCTL_BNXT_QUERY_COMMANDS,
+	FWCTL_BNXT_SEND_COMMANDS,
+	FWCTL_BNXT_DMA_COMMANDS,
+};
+
+/**
+ * struct fwctl_info_bnxt - ioctl(FWCTL_INFO) out_device_data
+ * @uctx_caps: The command capabilities driver accepts.
+ *
+ * Return basic information about the FW interface available.
+ */
+struct fwctl_info_bnxt {
+	__u32 uctx_caps;
+};
+
+#define FWCTL_BNXT_MAX_DMABUF	0x10000   /* 64 KiB */
+
+#endif