From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/include/net/red.h | 38 ++++++++++++++++++++++++++++++++++++++
1 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/kernel/include/net/red.h b/kernel/include/net/red.h
index ff07a7c..cc9f6b0 100644
--- a/kernel/include/net/red.h
+++ b/kernel/include/net/red.h
@@ -189,6 +189,44 @@
return true;
}
+static inline int red_get_flags(unsigned char qopt_flags,
+ unsigned char historic_mask,
+ struct nlattr *flags_attr,
+ unsigned char supported_mask,
+ struct nla_bitfield32 *p_flags,
+ unsigned char *p_userbits,
+ struct netlink_ext_ack *extack)
+{
+ struct nla_bitfield32 flags;
+
+ if (qopt_flags && flags_attr) {
+ NL_SET_ERR_MSG_MOD(extack, "flags should be passed either through qopt, or through a dedicated attribute");
+ return -EINVAL;
+ }
+
+ if (flags_attr) {
+ flags = nla_get_bitfield32(flags_attr);
+ } else {
+ flags.selector = historic_mask;
+ flags.value = qopt_flags & historic_mask;
+ }
+
+ *p_flags = flags;
+ *p_userbits = qopt_flags & ~historic_mask;
+ return 0;
+}
+
+static inline int red_validate_flags(unsigned char flags,
+ struct netlink_ext_ack *extack)
+{
+ if ((flags & TC_RED_NODROP) && !(flags & TC_RED_ECN)) {
+ NL_SET_ERR_MSG_MOD(extack, "nodrop mode is only meaningful with ECN");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static inline void red_set_parms(struct red_parms *p,
u32 qth_min, u32 qth_max, u8 Wlog, u8 Plog,
u8 Scell_log, u8 *stab, u32 max_P)
--
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