// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2012-2014, 2018-2024 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ #include <linux/ieee80211.h> #include <linux/etherdevice.h> #include <linux/tcp.h> #include <net/gso.h> #include <net/ip.h> #include <net/ipv6.h> #include "iwl-trans.h" #include "iwl-nvm-utils.h" #include "mvm.h" #include "sta.h" #include "time-sync.h" static void iwl_mvm_bar_check_trigger(struct iwl_mvm *mvm, const u8 *addr, u16 tid, u16 ssn) { … } #define OPT_HDR(type, skb, off) … static u32 iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, bool amsdu) { … } /* * Sets most of the Tx cmd's fields */ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, struct iwl_tx_cmd *tx_cmd, struct ieee80211_tx_info *info, u8 sta_id) { … } static u32 iwl_mvm_get_tx_ant(struct iwl_mvm *mvm, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, __le16 fc) { … } static u32 iwl_mvm_convert_rate_idx(struct iwl_mvm *mvm, struct ieee80211_tx_info *info, int rate_idx) { … } static u32 iwl_mvm_get_inject_tx_rate(struct iwl_mvm *mvm, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, __le16 fc) { … } static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, __le16 fc) { … } static u32 iwl_mvm_get_tx_rate_n_flags(struct iwl_mvm *mvm, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, __le16 fc) { … } /* * Sets the fields in the Tx cmd that are rate related */ void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, __le16 fc) { … } static inline void iwl_mvm_set_tx_cmd_pn(struct ieee80211_tx_info *info, u8 *crypto_hdr) { … } /* * Sets the fields in the Tx cmd that are crypto related */ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm, struct ieee80211_tx_info *info, struct iwl_tx_cmd *tx_cmd, struct sk_buff *skb_frag, int hdrlen) { … } static bool iwl_mvm_use_host_rate(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, struct ieee80211_hdr *hdr, struct ieee80211_tx_info *info) { … } static void iwl_mvm_copy_hdr(void *cmd, const void *hdr, int hdrlen, const u8 *addr3_override) { … } /* * Allocates and sets the Tx cmd the driver data pointers in the skb */ static struct iwl_device_tx_cmd * iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, int hdrlen, struct ieee80211_sta *sta, u8 sta_id, const u8 *addr3_override) { … } static void iwl_mvm_skb_prepare_status(struct sk_buff *skb, struct iwl_device_tx_cmd *cmd) { … } static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm, struct iwl_mvm_vif_link_info *link, struct ieee80211_tx_info *info, struct sk_buff *skb) { … } static void iwl_mvm_probe_resp_set_noa(struct iwl_mvm *mvm, struct sk_buff *skb) { … } int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb) { … } unsigned int iwl_mvm_max_amsdu_size(struct iwl_mvm *mvm, struct ieee80211_sta *sta, unsigned int tid) { … } #ifdef CONFIG_INET static int iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes, netdev_features_t netdev_flags, struct sk_buff_head *mpdus_skb) { … } static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, struct sk_buff_head *mpdus_skb) { … } #else /* CONFIG_INET */ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, struct sk_buff_head *mpdus_skb) { /* Impossible to get TSO with CONFIG_INET */ WARN_ON(1); return -1; } #endif /* Check if there are any timed-out TIDs on a given shared TXQ */ static bool iwl_mvm_txq_should_update(struct iwl_mvm *mvm, int txq_id) { … } static void iwl_mvm_tx_airtime(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, int airtime) { … } static int iwl_mvm_tx_pkt_queued(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, int tid) { … } /* * Sets the fields in the Tx cmd that are crypto related. * * This function must be called with BHs disabled. */ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, const u8 *addr3_override) { … } int iwl_mvm_tx_skb_sta(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_sta *sta) { … } static void iwl_mvm_check_ratid_empty(struct iwl_mvm *mvm, struct ieee80211_sta *sta, u8 tid) { … } #ifdef CONFIG_IWLWIFI_DEBUG const char *iwl_mvm_get_tx_fail_reason(u32 status) { … } #endif /* CONFIG_IWLWIFI_DEBUG */ static int iwl_mvm_get_hwrate_chan_width(u32 chan_width) { … } void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags, enum nl80211_band band, struct ieee80211_tx_rate *r) { … } void iwl_mvm_hwrate_to_tx_rate_v1(u32 rate_n_flags, enum nl80211_band band, struct ieee80211_tx_rate *r) { … } /* * translate ucode response to mac80211 tx status control values */ static void iwl_mvm_hwrate_to_tx_status(const struct iwl_fw *fw, u32 rate_n_flags, struct ieee80211_tx_info *info) { … } static void iwl_mvm_tx_status_check_trigger(struct iwl_mvm *mvm, u32 status, __le16 frame_control) { … } /* * iwl_mvm_get_scd_ssn - returns the SSN of the SCD * @tx_resp: the Tx response from the fw (agg or non-agg) * * When the fw sends an AMPDU, it fetches the MPDUs one after the other. Since * it can't know that everything will go well until the end of the AMPDU, it * can't know in advance the number of MPDUs that will be sent in the current * batch. This is why it writes the agg Tx response while it fetches the MPDUs. * Hence, it can't know in advance what the SSN of the SCD will be at the end * of the batch. This is why the SSN of the SCD is written at the end of the * whole struct at a variable offset. This function knows how to cope with the * variable offset and returns the SSN of the SCD. * * For 22000-series and lower, this is just 12 bits. For later, 16 bits. */ static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm *mvm, struct iwl_mvm_tx_resp *tx_resp) { … } static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { … } #ifdef CONFIG_IWLWIFI_DEBUG #define AGG_TX_STATE_(x) … static const char *iwl_get_agg_tx_status(u16 status) { … } static void iwl_mvm_rx_tx_cmd_agg_dbg(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { … } #else static void iwl_mvm_rx_tx_cmd_agg_dbg(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) {} #endif /* CONFIG_IWLWIFI_DEBUG */ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { … } void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { … } static void iwl_mvm_tx_reclaim(struct iwl_mvm *mvm, int sta_id, int tid, int txq, int index, struct ieee80211_tx_info *tx_info, u32 rate, bool is_flush) { … } void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { … } /* * Note that there are transports that buffer frames before they reach * the firmware. This means that after flush_tx_path is called, the * queue might not be empty. The race-free way to handle this is to: * 1) set the station as draining * 2) flush the Tx path * 3) wait for the transport queues to be empty */ int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk) { … } int iwl_mvm_flush_sta_tids(struct iwl_mvm *mvm, u32 sta_id, u16 tids) { … } int iwl_mvm_flush_sta(struct iwl_mvm *mvm, u32 sta_id, u32 tfd_queue_mask) { … }
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