Ravi Joshi | e7148bd | 2017-01-09 22:24:27 -0800 | [diff] [blame] | 1 | /* |
Shashikala Prabhu | 03a9f5b | 2020-01-28 19:11:30 +0530 | [diff] [blame] | 2 | * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved. |
Ravi Joshi | e7148bd | 2017-01-09 22:24:27 -0800 | [diff] [blame] | 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for |
| 5 | * any purpose with or without fee is hereby granted, provided that the |
| 6 | * above copyright notice and this permission notice appear in all |
| 7 | * copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 10 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 11 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 12 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 13 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 14 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 15 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 16 | * PERFORMANCE OF THIS SOFTWARE. |
| 17 | */ |
| 18 | |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 19 | #ifndef _DP_RX_DEFRAG_H |
Ravi Joshi | e7148bd | 2017-01-09 22:24:27 -0800 | [diff] [blame] | 20 | #define _DP_RX_DEFRAG_H |
| 21 | |
| 22 | #include "hal_rx.h" |
| 23 | |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 24 | #define DEFRAG_IEEE80211_KEY_LEN 8 |
| 25 | #define DEFRAG_IEEE80211_FCS_LEN 4 |
| 26 | |
| 27 | #define DP_RX_DEFRAG_IEEE80211_ADDR_COPY(dst, src) \ |
Srinivas Girigowda | 2751b6d | 2019-02-27 12:28:13 -0800 | [diff] [blame] | 28 | qdf_mem_copy(dst, src, QDF_MAC_ADDR_SIZE) |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 29 | |
| 30 | #define DP_RX_DEFRAG_IEEE80211_QOS_HAS_SEQ(wh) \ |
| 31 | (((wh) & \ |
Srinivas Girigowda | 9cf1aa0 | 2019-03-01 15:01:52 -0800 | [diff] [blame] | 32 | (IEEE80211_FC0_TYPE_MASK | QDF_IEEE80211_FC0_SUBTYPE_QOS)) == \ |
| 33 | (IEEE80211_FC0_TYPE_DATA | QDF_IEEE80211_FC0_SUBTYPE_QOS)) |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 34 | |
psimha | 223883f | 2017-11-16 17:18:51 -0800 | [diff] [blame] | 35 | #define UNI_DESC_OWNER_SW 0x1 |
| 36 | #define UNI_DESC_BUF_TYPE_RX_MSDU_LINK 0x6 |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 37 | /** |
| 38 | * struct dp_rx_defrag_cipher: structure to indicate cipher header |
| 39 | * @ic_name: Name |
| 40 | * @ic_header: header length |
| 41 | * @ic_trailer: trail length |
| 42 | * @ic_miclen: MIC length |
| 43 | */ |
| 44 | struct dp_rx_defrag_cipher { |
| 45 | const char *ic_name; |
| 46 | uint16_t ic_header; |
| 47 | uint8_t ic_trailer; |
| 48 | uint8_t ic_miclen; |
| 49 | }; |
| 50 | |
Akshay Kosigi | 91c5652 | 2019-07-02 11:49:39 +0530 | [diff] [blame] | 51 | uint32_t dp_rx_frag_handle(struct dp_soc *soc, hal_ring_desc_t ring_desc, |
| 52 | struct hal_rx_mpdu_desc_info *mpdu_desc_info, |
| 53 | struct dp_rx_desc *rx_desc, |
| 54 | uint8_t *mac_id, |
| 55 | uint32_t quota); |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 56 | |
| 57 | /* |
| 58 | * dp_rx_frag_get_mac_hdr() - Return pointer to the mac hdr |
| 59 | * @rx_desc_info: Pointer to the pkt_tlvs in the |
| 60 | * nbuf (pkt_tlvs->mac_hdr->data) |
| 61 | * |
| 62 | * It is inefficient to peek into the packet for received |
| 63 | * frames but these APIs are required to get to some of |
| 64 | * 802.11 fields that hardware does not populate in the |
| 65 | * rx meta data. |
| 66 | * |
| 67 | * Returns: pointer to ieee80211_frame |
| 68 | */ |
| 69 | static inline |
| 70 | struct ieee80211_frame *dp_rx_frag_get_mac_hdr(uint8_t *rx_desc_info) |
| 71 | { |
Shashikala Prabhu | 03a9f5b | 2020-01-28 19:11:30 +0530 | [diff] [blame] | 72 | int rx_desc_len = SIZE_OF_DATA_RX_TLV; |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 73 | return (struct ieee80211_frame *)(rx_desc_info + rx_desc_len); |
| 74 | } |
| 75 | |
| 76 | /* |
| 77 | * dp_rx_frag_get_mpdu_seq_number() - Get mpdu sequence number |
| 78 | * @rx_desc_info: Pointer to the pkt_tlvs in the |
| 79 | * nbuf (pkt_tlvs->mac_hdr->data) |
| 80 | * |
| 81 | * Returns: uint16_t, rx sequence number |
| 82 | */ |
| 83 | static inline |
| 84 | uint16_t dp_rx_frag_get_mpdu_seq_number(uint8_t *rx_desc_info) |
| 85 | { |
| 86 | struct ieee80211_frame *mac_hdr; |
| 87 | mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| 88 | |
| 89 | return qdf_le16_to_cpu(*(uint16_t *) mac_hdr->i_seq) >> |
| 90 | IEEE80211_SEQ_SEQ_SHIFT; |
| 91 | } |
| 92 | |
| 93 | /* |
| 94 | * dp_rx_frag_get_mpdu_frag_number() - Get mpdu fragment number |
| 95 | * @rx_desc_info: Pointer to the pkt_tlvs in the |
| 96 | * nbuf (pkt_tlvs->mac_hdr->data) |
| 97 | * |
| 98 | * Returns: uint8_t, receive fragment number |
| 99 | */ |
| 100 | static inline |
| 101 | uint8_t dp_rx_frag_get_mpdu_frag_number(uint8_t *rx_desc_info) |
| 102 | { |
| 103 | struct ieee80211_frame *mac_hdr; |
| 104 | mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| 105 | |
| 106 | return qdf_le16_to_cpu(*(uint16_t *) mac_hdr->i_seq) & |
| 107 | IEEE80211_SEQ_FRAG_MASK; |
| 108 | } |
| 109 | |
| 110 | /* |
| 111 | * dp_rx_frag_get_more_frag_bit() - Get more fragment bit |
| 112 | * @rx_desc_info: Pointer to the pkt_tlvs in the |
| 113 | * nbuf (pkt_tlvs->mac_hdr->data) |
| 114 | * |
| 115 | * Returns: uint8_t, get more fragment bit |
| 116 | */ |
| 117 | static inline |
| 118 | uint8_t dp_rx_frag_get_more_frag_bit(uint8_t *rx_desc_info) |
| 119 | { |
| 120 | struct ieee80211_frame *mac_hdr; |
| 121 | mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| 122 | |
psimha | 223883f | 2017-11-16 17:18:51 -0800 | [diff] [blame] | 123 | return (mac_hdr->i_fc[1] & IEEE80211_FC1_MORE_FRAG) >> 2; |
| 124 | } |
| 125 | |
| 126 | static inline |
| 127 | uint8_t dp_rx_get_pkt_dir(uint8_t *rx_desc_info) |
| 128 | { |
| 129 | struct ieee80211_frame *mac_hdr; |
| 130 | mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info); |
| 131 | |
| 132 | return mac_hdr->i_fc[1] & IEEE80211_FC1_DIR_MASK; |
Ravi Joshi | 36f68ad | 2016-11-09 17:09:47 -0800 | [diff] [blame] | 133 | } |
| 134 | |
psimha | fc2f91b | 2018-01-10 15:30:03 -0800 | [diff] [blame] | 135 | void dp_rx_defrag_waitlist_flush(struct dp_soc *soc); |
| 136 | void dp_rx_reorder_flush_frag(struct dp_peer *peer, |
| 137 | unsigned int tid); |
| 138 | void dp_rx_defrag_waitlist_remove(struct dp_peer *peer, unsigned tid); |
psimha | 65180ec | 2018-03-20 12:24:33 -0700 | [diff] [blame] | 139 | void dp_rx_defrag_cleanup(struct dp_peer *peer, unsigned tid); |
Pramod Simha | 366c1e0 | 2018-06-20 11:55:50 -0700 | [diff] [blame] | 140 | |
| 141 | QDF_STATUS dp_rx_defrag_add_last_frag(struct dp_soc *soc, |
| 142 | struct dp_peer *peer, uint16_t tid, |
| 143 | uint16_t rxseq, qdf_nbuf_t nbuf); |
Ravi Joshi | e7148bd | 2017-01-09 22:24:27 -0800 | [diff] [blame] | 144 | #endif /* _DP_RX_DEFRAG_H */ |