1 /* 2 * Copyright (c) 2013-2018 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_lock.h" 20 #include "qdf_status.h" 21 #include "qdf_module.h" 22 #include "hif_main.h" 23 24 #if defined(HIF_PCI) || defined(HIF_SNOC) || defined(HIF_AHB) 25 #include "ce_api.h" 26 #include "ce_internal.h" 27 #endif 28 29 #ifdef WLAN_FEATURE_FASTPATH 30 /** 31 * hif_send_fast() - API to access hif specific function 32 * ce_send_fast. 33 * @osc: HIF Context 34 * @msdu : array of msdus to be sent 35 * @num_msdus : number of msdus in an array 36 * @transfer_id: transfer id 37 * @download_len: download length 38 * 39 * Return: No. of packets that could be sent 40 */ 41 int hif_send_fast(struct hif_opaque_softc *osc, qdf_nbuf_t nbuf, 42 uint32_t transfer_id, uint32_t download_len) 43 { 44 void *ce_tx_hdl = hif_get_ce_handle(osc, CE_HTT_TX_CE); 45 46 return ce_send_fast((struct CE_handle *)ce_tx_hdl, nbuf, 47 transfer_id, download_len); 48 } 49 50 qdf_export_symbol(hif_send_fast); 51 52 /** 53 * hif_ce_fastpath_cb_register() - Register callback for fastpath msg handler 54 * @handler: Callback funtcion 55 * @context: handle for callback function 56 * 57 * Return: QDF_STATUS_SUCCESS on success or QDF_STATUS_E_FAILURE 58 */ 59 int hif_ce_fastpath_cb_register(struct hif_opaque_softc *hif_ctx, 60 fastpath_msg_handler handler, 61 void *context) 62 { 63 struct CE_state *ce_state; 64 struct hif_softc *scn = HIF_GET_SOFTC(hif_ctx); 65 int i; 66 67 if (!scn) { 68 HIF_ERROR("%s: scn is NULL", __func__); 69 QDF_ASSERT(0); 70 return QDF_STATUS_E_FAILURE; 71 } 72 73 if (!scn->fastpath_mode_on) { 74 HIF_WARN("%s: Fastpath mode disabled", __func__); 75 return QDF_STATUS_E_FAILURE; 76 } 77 78 for (i = 0; i < scn->ce_count; i++) { 79 ce_state = scn->ce_id_to_state[i]; 80 if (ce_state->htt_rx_data) { 81 ce_state->fastpath_handler = handler; 82 ce_state->context = context; 83 ce_state->service = ce_per_engine_service_fast; 84 } 85 } 86 87 return QDF_STATUS_SUCCESS; 88 } 89 90 qdf_export_symbol(hif_ce_fastpath_cb_register); 91 #endif 92