| /* |
| * Copyright (c) 2017-2019 The Linux Foundation. All rights reserved. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef _DP_RX_DEFRAG_H |
| #define _DP_RX_DEFRAG_H |
| |
| #include "hal_rx.h" |
| |
| #define DEFRAG_IEEE80211_KEY_LEN 8 |
| #define DEFRAG_IEEE80211_FCS_LEN 4 |
| |
| #define DP_RX_DEFRAG_IEEE80211_ADDR_COPY(dst, src) \ |
| qdf_mem_copy(dst, src, QDF_MAC_ADDR_SIZE) |
| |
| #define DP_RX_DEFRAG_IEEE80211_QOS_HAS_SEQ(wh) \ |
| (((wh) & \ |
| (IEEE80211_FC0_TYPE_MASK | QDF_IEEE80211_FC0_SUBTYPE_QOS)) == \ |
| (IEEE80211_FC0_TYPE_DATA | QDF_IEEE80211_FC0_SUBTYPE_QOS)) |
| |
| #define UNI_DESC_OWNER_SW 0x1 |
| #define UNI_DESC_BUF_TYPE_RX_MSDU_LINK 0x6 |
| /** |
| * struct dp_rx_defrag_cipher: structure to indicate cipher header |
| * @ic_name: Name |
| * @ic_header: header length |
| * @ic_trailer: trail length |
| * @ic_miclen: MIC length |
| */ |
| struct dp_rx_defrag_cipher { |
| const char *ic_name; |
| uint16_t ic_header; |
| uint8_t ic_trailer; |
| uint8_t ic_miclen; |
| }; |
| |
| uint32_t dp_rx_frag_handle(struct dp_soc *soc, void *ring_desc, |
| struct hal_rx_mpdu_desc_info *mpdu_desc_info, |
| struct dp_rx_desc *rx_desc, |
| uint8_t *mac_id, |
| uint32_t quota); |
| |
| /* |
| * dp_rx_frag_get_mac_hdr() - Return pointer to the mac hdr |
| * @rx_desc_info: Pointer to the pkt_tlvs in the |
| * nbuf (pkt_tlvs->mac_hdr->data) |
| * |
| * It is inefficient to peek into the packet for received |
| * frames but these APIs are required to get to some of |
| * 802.11 fields that hardware does not populate in the |
| * rx meta data. |
| * |
| * Returns: pointer to ieee80211_frame |
| */ |
| static inline |
| struct ieee80211_frame *dp_rx_frag_get_mac_hdr(uint8_t *rx_desc_info) |
| { |
| int rx_desc_len = hal_rx_get_desc_len(); |
| return (struct ieee80211_frame *)(rx_desc_info + rx_desc_len); |
| } |
| |
| /* |
| * dp_rx_frag_get_mpdu_seq_number() - Get mpdu sequence number |
| * @rx_desc_info: Pointer to the pkt_tlvs in the |
| * nbuf (pkt_tlvs->mac_hdr->data) |
| * |
| * Returns: uint16_t, rx sequence number |
| */ |
| static inline |
| uint16_t dp_rx_frag_get_mpdu_seq_number(uint8_t *rx_desc_info) |
| { |
| struct ieee80211_frame *mac_hdr; |
| mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| |
| return qdf_le16_to_cpu(*(uint16_t *) mac_hdr->i_seq) >> |
| IEEE80211_SEQ_SEQ_SHIFT; |
| } |
| |
| /* |
| * dp_rx_frag_get_mpdu_frag_number() - Get mpdu fragment number |
| * @rx_desc_info: Pointer to the pkt_tlvs in the |
| * nbuf (pkt_tlvs->mac_hdr->data) |
| * |
| * Returns: uint8_t, receive fragment number |
| */ |
| static inline |
| uint8_t dp_rx_frag_get_mpdu_frag_number(uint8_t *rx_desc_info) |
| { |
| struct ieee80211_frame *mac_hdr; |
| mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| |
| return qdf_le16_to_cpu(*(uint16_t *) mac_hdr->i_seq) & |
| IEEE80211_SEQ_FRAG_MASK; |
| } |
| |
| /* |
| * dp_rx_frag_get_more_frag_bit() - Get more fragment bit |
| * @rx_desc_info: Pointer to the pkt_tlvs in the |
| * nbuf (pkt_tlvs->mac_hdr->data) |
| * |
| * Returns: uint8_t, get more fragment bit |
| */ |
| static inline |
| uint8_t dp_rx_frag_get_more_frag_bit(uint8_t *rx_desc_info) |
| { |
| struct ieee80211_frame *mac_hdr; |
| mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| |
| return (mac_hdr->i_fc[1] & IEEE80211_FC1_MORE_FRAG) >> 2; |
| } |
| |
| static inline |
| uint8_t dp_rx_get_pkt_dir(uint8_t *rx_desc_info) |
| { |
| struct ieee80211_frame *mac_hdr; |
| mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| |
| return mac_hdr->i_fc[1] & IEEE80211_FC1_DIR_MASK; |
| } |
| |
| void dp_rx_defrag_waitlist_flush(struct dp_soc *soc); |
| void dp_rx_reorder_flush_frag(struct dp_peer *peer, |
| unsigned int tid); |
| void dp_rx_defrag_waitlist_remove(struct dp_peer *peer, unsigned tid); |
| void dp_rx_defrag_cleanup(struct dp_peer *peer, unsigned tid); |
| |
| QDF_STATUS dp_rx_defrag_add_last_frag(struct dp_soc *soc, |
| struct dp_peer *peer, uint16_t tid, |
| uint16_t rxseq, qdf_nbuf_t nbuf); |
| #endif /* _DP_RX_DEFRAG_H */ |