1 /* 2 * Copyright (c) 2016-2019,2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /** 21 * DOC: cdp_txrx_flow_ctrl_v2.h 22 * Define the host data path flow control version 2 API functions 23 */ 24 #ifndef _CDP_TXRX_FC_V2_H_ 25 #define _CDP_TXRX_FC_V2_H_ 26 #include <cdp_txrx_ops.h> 27 #include <cdp_txrx_cmn.h> 28 29 /** 30 * cdp_register_pause_cb() - Register flow control callback function pointer 31 * @soc: data path soc handle 32 * @pause_cb: Pause callback intend to register 33 * 34 * Register flow control callback function pointer and client context pointer 35 * 36 * return QDF_STATUS_SUCCESS success 37 */ 38 static inline QDF_STATUS cdp_register_pause_cb(ol_txrx_soc_handle soc,tx_pause_callback pause_cb)39 cdp_register_pause_cb(ol_txrx_soc_handle soc, 40 tx_pause_callback pause_cb) 41 { 42 if (!soc || !soc->ops) { 43 dp_cdp_debug("invalid instance"); 44 QDF_BUG(0); 45 return QDF_STATUS_E_INVAL; 46 } 47 48 if (!soc->ops->flowctl_ops || 49 !soc->ops->flowctl_ops->register_pause_cb) 50 return QDF_STATUS_SUCCESS; 51 52 return soc->ops->flowctl_ops->register_pause_cb(soc, pause_cb); 53 54 } 55 56 /** 57 * cdp_set_desc_global_pool_size() - set global device pool size 58 * @soc: data path soc handle 59 * @num_msdu_desc: descriptor pool size 60 * 61 * set global device pool size 62 * 63 * return none 64 */ 65 static inline void cdp_set_desc_global_pool_size(ol_txrx_soc_handle soc,uint32_t num_msdu_desc)66 cdp_set_desc_global_pool_size(ol_txrx_soc_handle soc, 67 uint32_t num_msdu_desc) 68 { 69 if (!soc || !soc->ops) { 70 dp_cdp_debug("invalid instance"); 71 QDF_BUG(0); 72 return; 73 } 74 75 if (!soc->ops->flowctl_ops || 76 !soc->ops->flowctl_ops->set_desc_global_pool_size) 77 return; 78 79 soc->ops->flowctl_ops->set_desc_global_pool_size( 80 num_msdu_desc); 81 } 82 83 /** 84 * cdp_dump_flow_pool_info() - dump flow pool information 85 * @soc: data path soc handle 86 * 87 * dump flow pool information 88 * 89 * return none 90 */ 91 static inline void cdp_dump_flow_pool_info(struct cdp_soc_t * soc)92 cdp_dump_flow_pool_info(struct cdp_soc_t *soc) 93 { 94 if (!soc || !soc->ops) { 95 dp_cdp_debug("invalid instance"); 96 QDF_BUG(0); 97 return; 98 } 99 100 if (!soc->ops->flowctl_ops || 101 !soc->ops->flowctl_ops->dump_flow_pool_info) 102 return; 103 104 soc->ops->flowctl_ops->dump_flow_pool_info(soc); 105 } 106 107 /** 108 * cdp_tx_desc_thresh_reached() - Check if avail tx desc meet threshold 109 * @soc: data path soc handle 110 * @vdev_id: vdev_id corresponding to vdev start 111 * 112 * Return: true if threshold is met, false if not 113 */ 114 static inline bool cdp_tx_desc_thresh_reached(struct cdp_soc_t * soc,uint8_t vdev_id)115 cdp_tx_desc_thresh_reached(struct cdp_soc_t *soc, uint8_t vdev_id) 116 { 117 if (!soc || !soc->ops) { 118 dp_cdp_debug("invalid instance"); 119 QDF_BUG(0); 120 return false; 121 } 122 123 if (!soc->ops->flowctl_ops || 124 !soc->ops->flowctl_ops->tx_desc_thresh_reached) 125 return false; 126 127 return soc->ops->flowctl_ops->tx_desc_thresh_reached(soc, vdev_id); 128 } 129 #endif /* _CDP_TXRX_FC_V2_H_ */ 130