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40840afa53
The function really is just a simple math helper. Move it into iwl-utils.c so that it can also be used by iwlmld. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250609211928.8cc965af6990.I09bb2137863e888efe756c92d8eb0271ec95456c@changeid
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/*
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* Copyright (C) 2024-2025 Intel Corporation
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*/
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#ifndef __iwl_utils_h__
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#define __iwl_utils_h__
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#include <net/cfg80211.h>
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#ifdef CONFIG_INET
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/**
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* iwl_tx_tso_segment - Segments a TSO packet into subframes for A-MSDU.
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* @skb: buffer to segment.
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* @num_subframes: number of subframes to create.
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* @netdev_flags: netdev feature flags.
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* @mpdus_skbs: list to hold the segmented subframes.
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*
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* This function segments a large TCP packet into subframes.
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* subframes are added to the mpdus_skbs list
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*
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* Returns: 0 on success and negative value on failure.
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*/
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int iwl_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes,
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netdev_features_t netdev_flags,
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struct sk_buff_head *mpdus_skbs);
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#else
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static inline
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int iwl_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes,
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netdev_features_t netdev_flags,
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struct sk_buff_head *mpdus_skbs)
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{
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WARN_ON(1);
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return -1;
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}
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#endif /* CONFIG_INET */
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static inline
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u32 iwl_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size)
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{
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struct ieee80211_mgmt *mgmt = (void *)beacon;
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const u8 *ie;
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if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon)))
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return 0;
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frame_size -= mgmt->u.beacon.variable - beacon;
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ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size);
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if (!ie)
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return 0;
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return ie - beacon;
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}
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s8 iwl_average_neg_dbm(const u8 *neg_dbm_values, u8 len);
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#endif /* __iwl_utils_h__ */
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