1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-utils.h b/drivers/net/wireless/intel/iwlwifi/iwl-utils.h
new file mode 100644
index 000000000000..8f1f11d06fbe
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-utils.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * Copyright (C) 2024 Intel Corporation
+ */
+#ifndef __iwl_utils_h__
+#define __iwl_utils_h__
+
+#include <net/cfg80211.h>
+
+#ifdef CONFIG_INET
+/**
+ * iwl_tx_tso_segment - Segments a TSO packet into subframes for A-MSDU.
+ * @skb: buffer to segment.
+ * @num_subframes: number of subframes to create.
+ * @netdev_flags: netdev feature flags.
+ * @mpdus_skbs: list to hold the segmented subframes.
+ *
+ * This function segments a large TCP packet into subframes.
+ * subframes are added to the mpdus_skbs list
+ *
+ * Returns: 0 on success and negative value on failure.
+ */
+int iwl_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes,
+		       netdev_features_t netdev_flags,
+		       struct sk_buff_head *mpdus_skbs);
+#else
+static inline
+int iwl_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes,
+		       netdev_features_t netdev_flags,
+		       struct sk_buff_head *mpdus_skbs)
+{
+	WARN_ON(1);
+
+	return -1;
+}
+#endif /* CONFIG_INET */
+
+static inline
+u32 iwl_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size)
+{
+	struct ieee80211_mgmt *mgmt = (void *)beacon;
+	const u8 *ie;
+
+	if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon)))
+		return 0;
+
+	frame_size -= mgmt->u.beacon.variable - beacon;
+
+	ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size);
+	if (!ie)
+		return 0;
+
+	return ie - beacon;
+}
+
+#endif /* __iwl_utils_h__ */