1 /* 2 * Copyright (c) 2017-2021 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 #include <qdf_status.h> 20 #include <target_if_direct_buf_rx_api.h> 21 #include <wlan_objmgr_cmn.h> 22 #include <wlan_objmgr_global_obj.h> 23 #include <wlan_objmgr_psoc_obj.h> 24 #include <wlan_objmgr_cmn.h> 25 #include "target_if_direct_buf_rx_main.h" 26 #include <qdf_module.h> 27 #include <wlan_lmac_if_def.h> 28 29 #if defined(WLAN_DEBUGFS) && defined(DIRECT_BUF_RX_DEBUG) 30 /* Base debugfs entry for DBR module */ 31 qdf_dentry_t dbr_debugfs_entry; 32 33 static inline void 34 target_if_direct_buf_rx_debugfs_init(void) 35 { 36 dbr_debugfs_entry = qdf_debugfs_create_dir("dbr_ring_debug", NULL); 37 38 if (!dbr_debugfs_entry) 39 direct_buf_rx_err("error while creating direct_buf rx debugfs dir"); 40 } 41 42 static inline void 43 target_if_direct_buf_rx_debugfs_deinit(void) 44 { 45 if (dbr_debugfs_entry) { 46 qdf_debugfs_remove_dir_recursive(dbr_debugfs_entry); 47 dbr_debugfs_entry = NULL; 48 } 49 } 50 #else 51 static inline void 52 target_if_direct_buf_rx_debugfs_init(void) 53 { 54 } 55 56 static inline void 57 target_if_direct_buf_rx_debugfs_deinit(void) 58 { 59 } 60 #endif /* WLAN_DEBUGFS && DIRECT_BUF_RX_DEBUG */ 61 62 QDF_STATUS direct_buf_rx_init(void) 63 { 64 QDF_STATUS status; 65 66 status = wlan_objmgr_register_psoc_create_handler( 67 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 68 target_if_direct_buf_rx_psoc_create_handler, 69 NULL); 70 71 if (QDF_IS_STATUS_ERROR(status)) { 72 direct_buf_rx_err("Failed to register psoc create handler"); 73 return status; 74 } 75 76 status = wlan_objmgr_register_psoc_destroy_handler( 77 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 78 target_if_direct_buf_rx_psoc_destroy_handler, 79 NULL); 80 81 if (QDF_IS_STATUS_ERROR(status)) { 82 direct_buf_rx_err("Failed to register psoc destroy handler"); 83 goto dbr_unreg_psoc_create; 84 } 85 86 status = wlan_objmgr_register_pdev_create_handler( 87 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 88 target_if_direct_buf_rx_pdev_create_handler, 89 NULL); 90 91 if (QDF_IS_STATUS_ERROR(status)) { 92 direct_buf_rx_err("Failed to register pdev create handler"); 93 goto dbr_unreg_psoc_destroy; 94 } 95 96 status = wlan_objmgr_register_pdev_destroy_handler( 97 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 98 target_if_direct_buf_rx_pdev_destroy_handler, 99 NULL); 100 101 if (QDF_IS_STATUS_ERROR(status)) { 102 direct_buf_rx_err("Failed to register pdev destroy handler"); 103 goto dbr_unreg_pdev_create; 104 } 105 106 target_if_direct_buf_rx_debugfs_init(); 107 108 direct_buf_rx_info("Direct Buffer RX pdev,psoc create and destroy handlers registered"); 109 110 return QDF_STATUS_SUCCESS; 111 112 dbr_unreg_pdev_create: 113 status = wlan_objmgr_unregister_pdev_create_handler( 114 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 115 target_if_direct_buf_rx_pdev_create_handler, 116 NULL); 117 118 dbr_unreg_psoc_destroy: 119 status = wlan_objmgr_unregister_psoc_destroy_handler( 120 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 121 target_if_direct_buf_rx_psoc_destroy_handler, 122 NULL); 123 124 dbr_unreg_psoc_create: 125 status = wlan_objmgr_unregister_psoc_create_handler( 126 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 127 target_if_direct_buf_rx_psoc_create_handler, 128 NULL); 129 130 return QDF_STATUS_E_FAILURE; 131 } 132 qdf_export_symbol(direct_buf_rx_init); 133 134 QDF_STATUS direct_buf_rx_deinit(void) 135 { 136 QDF_STATUS status; 137 138 target_if_direct_buf_rx_debugfs_deinit(); 139 140 status = wlan_objmgr_unregister_pdev_destroy_handler( 141 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 142 target_if_direct_buf_rx_pdev_destroy_handler, 143 NULL); 144 145 if (QDF_IS_STATUS_ERROR(status)) 146 direct_buf_rx_err("Failed to unregister pdev destroy handler"); 147 148 status = wlan_objmgr_unregister_pdev_create_handler( 149 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 150 target_if_direct_buf_rx_pdev_create_handler, 151 NULL); 152 153 if (QDF_IS_STATUS_ERROR(status)) 154 direct_buf_rx_err("Failed to unregister pdev create handler"); 155 156 status = wlan_objmgr_unregister_psoc_destroy_handler( 157 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 158 target_if_direct_buf_rx_psoc_destroy_handler, 159 NULL); 160 161 if (QDF_IS_STATUS_ERROR(status)) 162 direct_buf_rx_err("Failed to unregister psoc destroy handler"); 163 164 status = wlan_objmgr_unregister_psoc_create_handler( 165 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX, 166 target_if_direct_buf_rx_psoc_create_handler, 167 NULL); 168 169 if (QDF_IS_STATUS_ERROR(status)) 170 direct_buf_rx_err("Failed to unregister psoc create handler"); 171 172 direct_buf_rx_debug("Direct Buffer RX pdev,psoc create and destroy handlers unregistered"); 173 174 return status; 175 } 176 qdf_export_symbol(direct_buf_rx_deinit); 177 178 QDF_STATUS direct_buf_rx_target_attach(struct wlan_objmgr_psoc *psoc, 179 void *hal_soc, qdf_device_t osdev) 180 { 181 struct direct_buf_rx_psoc_obj *dbr_psoc_obj; 182 183 if (!hal_soc || !osdev) { 184 direct_buf_rx_err("hal soc or osdev is null"); 185 return QDF_STATUS_E_INVAL; 186 } 187 188 dbr_psoc_obj = wlan_objmgr_psoc_get_comp_private_obj(psoc, 189 WLAN_TARGET_IF_COMP_DIRECT_BUF_RX); 190 191 direct_buf_rx_debug("Dbr psoc obj %pK", dbr_psoc_obj); 192 193 if (!dbr_psoc_obj) { 194 direct_buf_rx_err("dir buf rx psoc obj is null"); 195 return QDF_STATUS_E_FAILURE; 196 } 197 198 dbr_psoc_obj->hal_soc = hal_soc; 199 dbr_psoc_obj->osdev = osdev; 200 201 return QDF_STATUS_SUCCESS; 202 } 203 204 #ifdef DIRECT_BUF_RX_DEBUG 205 static inline void 206 target_if_direct_buf_rx_debug_register_tx_ops( 207 struct wlan_lmac_if_tx_ops *tx_ops) 208 { 209 tx_ops->dbr_tx_ops.direct_buf_rx_start_ring_debug = 210 target_if_dbr_start_ring_debug; 211 tx_ops->dbr_tx_ops.direct_buf_rx_stop_ring_debug = 212 target_if_dbr_stop_ring_debug; 213 tx_ops->dbr_tx_ops.direct_buf_rx_start_buffer_poisoning = 214 target_if_dbr_start_buffer_poisoning; 215 tx_ops->dbr_tx_ops.direct_buf_rx_stop_buffer_poisoning = 216 target_if_dbr_stop_buffer_poisoning; 217 } 218 #else 219 static inline void 220 target_if_direct_buf_rx_debug_register_tx_ops( 221 struct wlan_lmac_if_tx_ops *tx_ops) 222 { 223 } 224 #endif /* DIRECT_BUF_RX_DEBUG */ 225 226 void target_if_direct_buf_rx_register_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops) 227 { 228 tx_ops->dbr_tx_ops.direct_buf_rx_module_register = 229 target_if_direct_buf_rx_module_register; 230 tx_ops->dbr_tx_ops.direct_buf_rx_module_unregister = 231 target_if_direct_buf_rx_module_unregister; 232 tx_ops->dbr_tx_ops.direct_buf_rx_register_events = 233 target_if_direct_buf_rx_register_events; 234 tx_ops->dbr_tx_ops.direct_buf_rx_unregister_events = 235 target_if_direct_buf_rx_unregister_events; 236 tx_ops->dbr_tx_ops.direct_buf_rx_print_ring_stat = 237 target_if_direct_buf_rx_print_ring_stat; 238 tx_ops->dbr_tx_ops.direct_buf_rx_get_ring_params = 239 target_if_direct_buf_rx_get_ring_params; 240 target_if_direct_buf_rx_debug_register_tx_ops(tx_ops); 241 } 242 qdf_export_symbol(target_if_direct_buf_rx_register_tx_ops); 243 244 QDF_STATUS target_if_dbr_update_pdev_for_hw_mode_change( 245 struct wlan_objmgr_pdev *pdev, int phy_idx) 246 { 247 struct wlan_objmgr_psoc *psoc; 248 struct direct_buf_rx_psoc_obj *dbr_psoc_obj; 249 250 psoc = wlan_pdev_get_psoc(pdev); 251 if (!psoc) { 252 direct_buf_rx_err("psoc is null"); 253 return QDF_STATUS_E_NULL_VALUE; 254 } 255 256 dbr_psoc_obj = wlan_objmgr_psoc_get_comp_private_obj( 257 psoc, WLAN_TARGET_IF_COMP_DIRECT_BUF_RX); 258 if (!dbr_psoc_obj) { 259 direct_buf_rx_err("dir buf rx psoc object is null"); 260 return QDF_STATUS_E_NULL_VALUE; 261 } 262 263 /* Update DBR object in pdev */ 264 pdev->pdev_comp_priv_obj[WLAN_TARGET_IF_COMP_DIRECT_BUF_RX] = 265 (void *)dbr_psoc_obj->dbr_pdev_obj[phy_idx]; 266 267 return QDF_STATUS_SUCCESS; 268 } 269