1 /* 2 * Copyright (c) 2014-2020 The Linux Foundation. All rights reserved. 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 19 /** 20 * DOC: i_qdf_nbuf_m.h 21 * 22 * This file provides platform specific nbuf API's. 23 * Included by i_qdf_nbuf.h and should not be included 24 * directly from other files. 25 */ 26 27 #ifndef _I_QDF_NBUF_M_H 28 #define _I_QDF_NBUF_M_H 29 30 #define QDF_NBUF_CB_RX_TCP_SEQ_NUM(skb) \ 31 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.tcp_seq_num) 32 #define QDF_NBUF_CB_RX_TCP_ACK_NUM(skb) \ 33 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.tcp_ack_num) 34 #define QDF_NBUF_CB_RX_LRO_CTX(skb) \ 35 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.lro_ctx) 36 37 #define QDF_NBUF_CB_TX_IPA_OWNED(skb) \ 38 (((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.priv_cb_m.ipa.owned) 39 #define QDF_NBUF_CB_TX_IPA_PRIV(skb) \ 40 (((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.priv_cb_m.ipa.priv) 41 #define QDF_NBUF_CB_TX_DESC_ID(skb)\ 42 (((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.priv_cb_m.desc_id) 43 #define QDF_NBUF_CB_MGMT_TXRX_DESC_ID(skb)\ 44 (((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.priv_cb_m.mgmt_desc_id) 45 #define QDF_NBUF_CB_TX_DMA_BI_MAP(skb) \ 46 (((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.priv_cb_m. \ 47 dma_option.bi_map) 48 49 #define QDF_NBUF_CB_RX_PEER_ID(skb) \ 50 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.dp. \ 51 wifi3.peer_id) 52 53 #define QDF_NBUF_CB_RX_PKT_LEN(skb) \ 54 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.dp. \ 55 wifi3.msdu_len) 56 57 #define QDF_NBUF_CB_RX_MAP_IDX(skb) \ 58 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.dp. \ 59 wifi2.map_index) 60 61 #define QDF_NBUF_CB_RX_PEER_CACHED_FRM(skb) \ 62 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m. \ 63 peer_cached_buf_frm) 64 65 #define QDF_NBUF_CB_RX_FLUSH_IND(skb) \ 66 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m.flush_ind) 67 68 #define QDF_NBUF_CB_RX_PACKET_BUFF_POOL(skb) \ 69 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m. \ 70 packet_buf_pool) 71 72 #define QDF_NBUF_CB_RX_PACKET_L3_HDR_PAD(skb) \ 73 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m. \ 74 l3_hdr_pad) 75 76 #define QDF_NBUF_CB_RX_PACKET_EXC_FRAME(skb) \ 77 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m. \ 78 exc_frm) 79 80 #define QDF_NBUF_CB_RX_PACKET_IPA_SMMU_MAP(skb) \ 81 (((struct qdf_nbuf_cb *)((skb)->cb))->u.rx.dev.priv_cb_m. \ 82 ipa_smmu_map) 83 84 #define __qdf_nbuf_ipa_owned_get(skb) \ 85 QDF_NBUF_CB_TX_IPA_OWNED(skb) 86 87 #define __qdf_nbuf_ipa_owned_set(skb) \ 88 (QDF_NBUF_CB_TX_IPA_OWNED(skb) = 1) 89 90 #define __qdf_nbuf_ipa_owned_clear(skb) \ 91 (QDF_NBUF_CB_TX_IPA_OWNED(skb) = 0) 92 93 #define __qdf_nbuf_ipa_priv_get(skb) \ 94 QDF_NBUF_CB_TX_IPA_PRIV(skb) 95 96 #define __qdf_nbuf_ipa_priv_set(skb, priv) \ 97 (QDF_NBUF_CB_TX_IPA_PRIV(skb) = (priv)) 98 99 /** 100 * qdf_nbuf_cb_update_vdev_id() - update vdev id in skb cb 101 * @skb: skb pointer whose cb is updated with vdev id information 102 * @vdev_id: vdev id to be updated in cb 103 * 104 * Return: void 105 */ 106 static inline void 107 qdf_nbuf_cb_update_vdev_id(struct sk_buff *skb, uint8_t vdev_id) 108 { 109 QDF_NBUF_CB_RX_VDEV_ID(skb) = vdev_id; 110 } 111 112 void __qdf_nbuf_init_replenish_timer(void); 113 void __qdf_nbuf_deinit_replenish_timer(void); 114 115 /** 116 * __qdf_nbuf_push_head() - Push data in the front 117 * @skb: Pointer to network buffer 118 * @size: size to be pushed 119 * 120 * Return: New data pointer of this buf after data has been pushed, 121 * or NULL if there is not enough room in this buf. 122 */ 123 static inline uint8_t *__qdf_nbuf_push_head(struct sk_buff *skb, size_t size) 124 { 125 if (QDF_NBUF_CB_PADDR(skb)) 126 QDF_NBUF_CB_PADDR(skb) -= size; 127 128 return skb_push(skb, size); 129 } 130 131 132 /** 133 * __qdf_nbuf_pull_head() - pull data out from the front 134 * @skb: Pointer to network buffer 135 * @size: size to be popped 136 * 137 * Return: New data pointer of this buf after data has been popped, 138 * or NULL if there is not sufficient data to pull. 139 */ 140 static inline uint8_t *__qdf_nbuf_pull_head(struct sk_buff *skb, size_t size) 141 { 142 if (QDF_NBUF_CB_PADDR(skb)) 143 QDF_NBUF_CB_PADDR(skb) += size; 144 145 return skb_pull(skb, size); 146 } 147 148 /** 149 * qdf_nbuf_init_replenish_timer - Initialize the alloc replenish timer 150 * 151 * This function initializes the nbuf alloc fail replenish timer. 152 * 153 * Return: void 154 */ 155 static inline void 156 qdf_nbuf_init_replenish_timer(void) 157 { 158 __qdf_nbuf_init_replenish_timer(); 159 } 160 161 /** 162 * qdf_nbuf_deinit_replenish_timer - Deinitialize the alloc replenish timer 163 * 164 * This function deinitializes the nbuf alloc fail replenish timer. 165 * 166 * Return: void 167 */ 168 static inline void 169 qdf_nbuf_deinit_replenish_timer(void) 170 { 171 __qdf_nbuf_deinit_replenish_timer(); 172 } 173 174 static inline void 175 __qdf_nbuf_dma_inv_range(const void *buf_start, const void *buf_end) {} 176 177 #endif /*_I_QDF_NBUF_M_H */ 178