Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 1 | /* |
Jeff Johnson | 8d639a0 | 2019-03-18 09:51:11 -0700 | [diff] [blame] | 2 | * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved. |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [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 | |
| 19 | #include "hif.h" |
| 20 | #include "hif_io32.h" |
| 21 | #include "reg_struct.h" |
| 22 | #include "ce_api.h" |
| 23 | #include "ce_main.h" |
| 24 | #include "ce_internal.h" |
| 25 | #include "ce_reg.h" |
| 26 | #include "qdf_lock.h" |
| 27 | #include "regtable.h" |
| 28 | #include "hif_main.h" |
| 29 | #include "hif_debug.h" |
| 30 | #include "hal_api.h" |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 31 | #include "pld_common.h" |
Pratik Gandhi | dc82a77 | 2018-01-30 18:57:05 +0530 | [diff] [blame] | 32 | #include "qdf_module.h" |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 33 | |
| 34 | /* |
| 35 | * Support for Copy Engine hardware, which is mainly used for |
| 36 | * communication between Host and Target over a PCIe interconnect. |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | * A single CopyEngine (CE) comprises two "rings": |
| 41 | * a source ring |
| 42 | * a destination ring |
| 43 | * |
| 44 | * Each ring consists of a number of descriptors which specify |
| 45 | * an address, length, and meta-data. |
| 46 | * |
| 47 | * Typically, one side of the PCIe interconnect (Host or Target) |
| 48 | * controls one ring and the other side controls the other ring. |
| 49 | * The source side chooses when to initiate a transfer and it |
| 50 | * chooses what to send (buffer address, length). The destination |
| 51 | * side keeps a supply of "anonymous receive buffers" available and |
| 52 | * it handles incoming data as it arrives (when the destination |
| 53 | * receives an interrupt). |
| 54 | * |
| 55 | * The sender may send a simple buffer (address/length) or it may |
| 56 | * send a small list of buffers. When a small list is sent, hardware |
| 57 | * "gathers" these and they end up in a single destination buffer |
| 58 | * with a single interrupt. |
| 59 | * |
| 60 | * There are several "contexts" managed by this layer -- more, it |
| 61 | * may seem -- than should be needed. These are provided mainly for |
| 62 | * maximum flexibility and especially to facilitate a simpler HIF |
| 63 | * implementation. There are per-CopyEngine recv, send, and watermark |
| 64 | * contexts. These are supplied by the caller when a recv, send, |
| 65 | * or watermark handler is established and they are echoed back to |
| 66 | * the caller when the respective callbacks are invoked. There is |
| 67 | * also a per-transfer context supplied by the caller when a buffer |
| 68 | * (or sendlist) is sent and when a buffer is enqueued for recv. |
| 69 | * These per-transfer contexts are echoed back to the caller when |
| 70 | * the buffer is sent/received. |
| 71 | * Target TX harsh result toeplitz_hash_result |
| 72 | */ |
| 73 | |
| 74 | #define CE_ADDR_COPY(desc, dma_addr) do {\ |
| 75 | (desc)->buffer_addr_lo = (uint32_t)((dma_addr) &\ |
| 76 | 0xFFFFFFFF);\ |
| 77 | (desc)->buffer_addr_hi =\ |
| 78 | (uint32_t)(((dma_addr) >> 32) & 0xFF);\ |
| 79 | } while (0) |
| 80 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 81 | static int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 82 | ce_send_nolock_srng(struct CE_handle *copyeng, |
| 83 | void *per_transfer_context, |
| 84 | qdf_dma_addr_t buffer, |
| 85 | uint32_t nbytes, |
| 86 | uint32_t transfer_id, |
| 87 | uint32_t flags, |
| 88 | uint32_t user_flags) |
| 89 | { |
| 90 | int status; |
| 91 | struct CE_state *CE_state = (struct CE_state *)copyeng; |
| 92 | struct CE_ring_state *src_ring = CE_state->src_ring; |
| 93 | unsigned int nentries_mask = src_ring->nentries_mask; |
| 94 | unsigned int write_index = src_ring->write_index; |
| 95 | uint64_t dma_addr = buffer; |
| 96 | struct hif_softc *scn = CE_state->scn; |
| 97 | |
| 98 | if (Q_TARGET_ACCESS_BEGIN(scn) < 0) |
| 99 | return QDF_STATUS_E_FAILURE; |
| 100 | if (unlikely(hal_srng_src_num_avail(scn->hal_soc, src_ring->srng_ctx, |
| 101 | false) <= 0)) { |
| 102 | OL_ATH_CE_PKT_ERROR_COUNT_INCR(scn, CE_RING_DELTA_FAIL); |
| 103 | Q_TARGET_ACCESS_END(scn); |
| 104 | return QDF_STATUS_E_FAILURE; |
| 105 | } |
| 106 | { |
| 107 | enum hif_ce_event_type event_type = HIF_TX_GATHER_DESC_POST; |
| 108 | struct ce_srng_src_desc *src_desc; |
| 109 | |
| 110 | if (hal_srng_access_start(scn->hal_soc, src_ring->srng_ctx)) { |
| 111 | Q_TARGET_ACCESS_END(scn); |
| 112 | return QDF_STATUS_E_FAILURE; |
| 113 | } |
| 114 | |
| 115 | src_desc = hal_srng_src_get_next_reaped(scn->hal_soc, |
| 116 | src_ring->srng_ctx); |
Aditya Sathish | 61f7fa3 | 2018-03-27 17:16:33 +0530 | [diff] [blame] | 117 | if (!src_desc) { |
| 118 | Q_TARGET_ACCESS_END(scn); |
| 119 | return QDF_STATUS_E_INVAL; |
| 120 | } |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 121 | |
| 122 | /* Update low 32 bits source descriptor address */ |
| 123 | src_desc->buffer_addr_lo = |
| 124 | (uint32_t)(dma_addr & 0xFFFFFFFF); |
| 125 | src_desc->buffer_addr_hi = |
| 126 | (uint32_t)((dma_addr >> 32) & 0xFF); |
| 127 | |
| 128 | src_desc->meta_data = transfer_id; |
| 129 | |
| 130 | /* |
| 131 | * Set the swap bit if: |
| 132 | * typical sends on this CE are swapped (host is big-endian) |
| 133 | * and this send doesn't disable the swapping |
| 134 | * (data is not bytestream) |
| 135 | */ |
| 136 | src_desc->byte_swap = |
| 137 | (((CE_state->attr_flags & CE_ATTR_BYTE_SWAP_DATA) |
| 138 | != 0) & ((flags & CE_SEND_FLAG_SWAP_DISABLE) == 0)); |
| 139 | src_desc->gather = ((flags & CE_SEND_FLAG_GATHER) != 0); |
| 140 | src_desc->nbytes = nbytes; |
| 141 | |
| 142 | src_ring->per_transfer_context[write_index] = |
| 143 | per_transfer_context; |
| 144 | write_index = CE_RING_IDX_INCR(nentries_mask, write_index); |
| 145 | |
| 146 | hal_srng_access_end(scn->hal_soc, src_ring->srng_ctx); |
| 147 | |
| 148 | /* src_ring->write index hasn't been updated event though |
| 149 | * the register has allready been written to. |
| 150 | */ |
| 151 | hif_record_ce_desc_event(scn, CE_state->id, event_type, |
| 152 | (union ce_desc *) src_desc, per_transfer_context, |
c_cgodav | fda96ad | 2017-09-07 16:16:00 +0530 | [diff] [blame] | 153 | src_ring->write_index, nbytes); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 154 | |
| 155 | src_ring->write_index = write_index; |
| 156 | status = QDF_STATUS_SUCCESS; |
| 157 | } |
| 158 | Q_TARGET_ACCESS_END(scn); |
| 159 | return status; |
| 160 | } |
| 161 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 162 | static int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 163 | ce_sendlist_send_srng(struct CE_handle *copyeng, |
| 164 | void *per_transfer_context, |
| 165 | struct ce_sendlist *sendlist, unsigned int transfer_id) |
| 166 | { |
| 167 | int status = -ENOMEM; |
| 168 | struct ce_sendlist_s *sl = (struct ce_sendlist_s *)sendlist; |
| 169 | struct CE_state *CE_state = (struct CE_state *)copyeng; |
| 170 | struct CE_ring_state *src_ring = CE_state->src_ring; |
| 171 | unsigned int num_items = sl->num_items; |
| 172 | unsigned int sw_index; |
| 173 | unsigned int write_index; |
| 174 | struct hif_softc *scn = CE_state->scn; |
| 175 | |
| 176 | QDF_ASSERT((num_items > 0) && (num_items < src_ring->nentries)); |
| 177 | |
| 178 | qdf_spin_lock_bh(&CE_state->ce_index_lock); |
| 179 | sw_index = src_ring->sw_index; |
| 180 | write_index = src_ring->write_index; |
| 181 | |
| 182 | if (hal_srng_src_num_avail(scn->hal_soc, src_ring->srng_ctx, false) >= |
| 183 | num_items) { |
| 184 | struct ce_sendlist_item *item; |
| 185 | int i; |
| 186 | |
| 187 | /* handle all but the last item uniformly */ |
| 188 | for (i = 0; i < num_items - 1; i++) { |
| 189 | item = &sl->item[i]; |
| 190 | /* TBDXXX: Support extensible sendlist_types? */ |
| 191 | QDF_ASSERT(item->send_type == CE_SIMPLE_BUFFER_TYPE); |
| 192 | status = ce_send_nolock_srng(copyeng, |
| 193 | CE_SENDLIST_ITEM_CTXT, |
| 194 | (qdf_dma_addr_t) item->data, |
| 195 | item->u.nbytes, transfer_id, |
| 196 | item->flags | CE_SEND_FLAG_GATHER, |
| 197 | item->user_flags); |
| 198 | QDF_ASSERT(status == QDF_STATUS_SUCCESS); |
| 199 | } |
| 200 | /* provide valid context pointer for final item */ |
| 201 | item = &sl->item[i]; |
| 202 | /* TBDXXX: Support extensible sendlist_types? */ |
| 203 | QDF_ASSERT(item->send_type == CE_SIMPLE_BUFFER_TYPE); |
| 204 | status = ce_send_nolock_srng(copyeng, per_transfer_context, |
| 205 | (qdf_dma_addr_t) item->data, |
| 206 | item->u.nbytes, |
| 207 | transfer_id, item->flags, |
| 208 | item->user_flags); |
| 209 | QDF_ASSERT(status == QDF_STATUS_SUCCESS); |
| 210 | QDF_NBUF_UPDATE_TX_PKT_COUNT((qdf_nbuf_t)per_transfer_context, |
| 211 | QDF_NBUF_TX_PKT_CE); |
| 212 | DPTRACE(qdf_dp_trace((qdf_nbuf_t)per_transfer_context, |
| 213 | QDF_DP_TRACE_CE_PACKET_PTR_RECORD, |
Nandha Kishore Easwaran | e43583f | 2017-05-15 21:01:13 +0530 | [diff] [blame] | 214 | QDF_TRACE_DEFAULT_PDEV_ID, |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 215 | (uint8_t *)(((qdf_nbuf_t)per_transfer_context)->data), |
Houston Hoffman | 9a1b391 | 2016-10-17 18:56:32 -0700 | [diff] [blame] | 216 | sizeof(((qdf_nbuf_t)per_transfer_context)->data), QDF_TX)); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 217 | } else { |
| 218 | /* |
| 219 | * Probably not worth the additional complexity to support |
| 220 | * partial sends with continuation or notification. We expect |
| 221 | * to use large rings and small sendlists. If we can't handle |
| 222 | * the entire request at once, punt it back to the caller. |
| 223 | */ |
| 224 | } |
| 225 | qdf_spin_unlock_bh(&CE_state->ce_index_lock); |
| 226 | |
| 227 | return status; |
| 228 | } |
| 229 | |
| 230 | #define SLOTS_PER_DATAPATH_TX 2 |
| 231 | |
| 232 | #ifndef AH_NEED_TX_DATA_SWAP |
| 233 | #define AH_NEED_TX_DATA_SWAP 0 |
| 234 | #endif |
| 235 | /** |
| 236 | * ce_recv_buf_enqueue_srng() - enqueue a recv buffer into a copy engine |
| 237 | * @coyeng: copy engine handle |
| 238 | * @per_recv_context: virtual address of the nbuf |
| 239 | * @buffer: physical address of the nbuf |
| 240 | * |
| 241 | * Return: 0 if the buffer is enqueued |
| 242 | */ |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 243 | static int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 244 | ce_recv_buf_enqueue_srng(struct CE_handle *copyeng, |
| 245 | void *per_recv_context, qdf_dma_addr_t buffer) |
| 246 | { |
| 247 | int status; |
| 248 | struct CE_state *CE_state = (struct CE_state *)copyeng; |
| 249 | struct CE_ring_state *dest_ring = CE_state->dest_ring; |
| 250 | unsigned int nentries_mask = dest_ring->nentries_mask; |
| 251 | unsigned int write_index; |
| 252 | unsigned int sw_index; |
| 253 | uint64_t dma_addr = buffer; |
| 254 | struct hif_softc *scn = CE_state->scn; |
| 255 | |
| 256 | qdf_spin_lock_bh(&CE_state->ce_index_lock); |
| 257 | write_index = dest_ring->write_index; |
| 258 | sw_index = dest_ring->sw_index; |
| 259 | |
| 260 | if (Q_TARGET_ACCESS_BEGIN(scn) < 0) { |
| 261 | qdf_spin_unlock_bh(&CE_state->ce_index_lock); |
| 262 | return -EIO; |
| 263 | } |
| 264 | |
| 265 | if (hal_srng_access_start(scn->hal_soc, dest_ring->srng_ctx)) { |
| 266 | qdf_spin_unlock_bh(&CE_state->ce_index_lock); |
| 267 | return QDF_STATUS_E_FAILURE; |
| 268 | } |
| 269 | |
| 270 | if ((hal_srng_src_num_avail(scn->hal_soc, |
| 271 | dest_ring->srng_ctx, false) > 0)) { |
| 272 | struct ce_srng_dest_desc *dest_desc = |
| 273 | hal_srng_src_get_next(scn->hal_soc, |
| 274 | dest_ring->srng_ctx); |
| 275 | |
Jeff Johnson | 8d639a0 | 2019-03-18 09:51:11 -0700 | [diff] [blame] | 276 | if (!dest_desc) { |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 277 | status = QDF_STATUS_E_FAILURE; |
| 278 | } else { |
| 279 | |
| 280 | CE_ADDR_COPY(dest_desc, dma_addr); |
| 281 | |
| 282 | dest_ring->per_transfer_context[write_index] = |
| 283 | per_recv_context; |
| 284 | |
| 285 | /* Update Destination Ring Write Index */ |
| 286 | write_index = CE_RING_IDX_INCR(nentries_mask, |
| 287 | write_index); |
| 288 | status = QDF_STATUS_SUCCESS; |
| 289 | } |
| 290 | } else |
| 291 | status = QDF_STATUS_E_FAILURE; |
| 292 | |
| 293 | dest_ring->write_index = write_index; |
| 294 | hal_srng_access_end(scn->hal_soc, dest_ring->srng_ctx); |
| 295 | Q_TARGET_ACCESS_END(scn); |
| 296 | qdf_spin_unlock_bh(&CE_state->ce_index_lock); |
| 297 | return status; |
| 298 | } |
| 299 | |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 300 | /* |
| 301 | * Guts of ce_recv_entries_done. |
| 302 | * The caller takes responsibility for any necessary locking. |
| 303 | */ |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 304 | static unsigned int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 305 | ce_recv_entries_done_nolock_srng(struct hif_softc *scn, |
| 306 | struct CE_state *CE_state) |
| 307 | { |
| 308 | struct CE_ring_state *status_ring = CE_state->status_ring; |
| 309 | |
| 310 | return hal_srng_dst_num_valid(scn->hal_soc, |
| 311 | status_ring->srng_ctx, false); |
| 312 | } |
| 313 | |
| 314 | /* |
| 315 | * Guts of ce_send_entries_done. |
| 316 | * The caller takes responsibility for any necessary locking. |
| 317 | */ |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 318 | static unsigned int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 319 | ce_send_entries_done_nolock_srng(struct hif_softc *scn, |
| 320 | struct CE_state *CE_state) |
| 321 | { |
| 322 | |
| 323 | struct CE_ring_state *src_ring = CE_state->src_ring; |
| 324 | int count = 0; |
| 325 | |
| 326 | if (hal_srng_access_start(scn->hal_soc, src_ring->srng_ctx)) |
| 327 | return 0; |
| 328 | |
| 329 | count = hal_srng_src_done_val(scn->hal_soc, src_ring->srng_ctx); |
| 330 | |
Manjunathappa Prakash | 05f70da | 2019-04-09 23:39:48 -0700 | [diff] [blame] | 331 | hal_srng_access_end_reap(scn->hal_soc, src_ring->srng_ctx); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 332 | |
| 333 | return count; |
| 334 | } |
| 335 | |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 336 | /* |
| 337 | * Guts of ce_completed_recv_next. |
| 338 | * The caller takes responsibility for any necessary locking. |
| 339 | */ |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 340 | static int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 341 | ce_completed_recv_next_nolock_srng(struct CE_state *CE_state, |
| 342 | void **per_CE_contextp, |
| 343 | void **per_transfer_contextp, |
| 344 | qdf_dma_addr_t *bufferp, |
| 345 | unsigned int *nbytesp, |
| 346 | unsigned int *transfer_idp, |
| 347 | unsigned int *flagsp) |
| 348 | { |
| 349 | int status; |
| 350 | struct CE_ring_state *dest_ring = CE_state->dest_ring; |
| 351 | struct CE_ring_state *status_ring = CE_state->status_ring; |
| 352 | unsigned int nentries_mask = dest_ring->nentries_mask; |
| 353 | unsigned int sw_index = dest_ring->sw_index; |
| 354 | struct hif_softc *scn = CE_state->scn; |
| 355 | struct ce_srng_dest_status_desc *dest_status; |
| 356 | int nbytes; |
| 357 | struct ce_srng_dest_status_desc dest_status_info; |
| 358 | |
| 359 | if (hal_srng_access_start(scn->hal_soc, status_ring->srng_ctx)) { |
| 360 | status = QDF_STATUS_E_FAILURE; |
| 361 | goto done; |
| 362 | } |
| 363 | |
| 364 | dest_status = hal_srng_dst_get_next(scn->hal_soc, |
| 365 | status_ring->srng_ctx); |
| 366 | |
Jeff Johnson | 8d639a0 | 2019-03-18 09:51:11 -0700 | [diff] [blame] | 367 | if (!dest_status) { |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 368 | status = QDF_STATUS_E_FAILURE; |
| 369 | goto done; |
| 370 | } |
| 371 | /* |
| 372 | * By copying the dest_desc_info element to local memory, we could |
| 373 | * avoid extra memory read from non-cachable memory. |
| 374 | */ |
| 375 | dest_status_info = *dest_status; |
| 376 | nbytes = dest_status_info.nbytes; |
| 377 | if (nbytes == 0) { |
| 378 | /* |
| 379 | * This closes a relatively unusual race where the Host |
| 380 | * sees the updated DRRI before the update to the |
| 381 | * corresponding descriptor has completed. We treat this |
| 382 | * as a descriptor that is not yet done. |
| 383 | */ |
| 384 | status = QDF_STATUS_E_FAILURE; |
| 385 | goto done; |
| 386 | } |
| 387 | |
| 388 | dest_status->nbytes = 0; |
| 389 | |
| 390 | *nbytesp = nbytes; |
| 391 | *transfer_idp = dest_status_info.meta_data; |
| 392 | *flagsp = (dest_status_info.byte_swap) ? CE_RECV_FLAG_SWAPPED : 0; |
| 393 | |
| 394 | if (per_CE_contextp) |
| 395 | *per_CE_contextp = CE_state->recv_context; |
| 396 | |
| 397 | /* NOTE: sw_index is more like a read_index in this context. It has a |
| 398 | * one-to-one mapping with status ring. |
| 399 | * Get the per trasnfer context from dest_ring. |
| 400 | */ |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 401 | if (per_transfer_contextp) |
Houston Hoffman | 3274fbc | 2017-01-26 22:32:26 -0800 | [diff] [blame] | 402 | *per_transfer_contextp = |
| 403 | dest_ring->per_transfer_context[sw_index]; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 404 | |
| 405 | dest_ring->per_transfer_context[sw_index] = 0; /* sanity */ |
| 406 | |
| 407 | /* Update sw_index */ |
| 408 | sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index); |
| 409 | dest_ring->sw_index = sw_index; |
| 410 | status = QDF_STATUS_SUCCESS; |
| 411 | |
| 412 | done: |
| 413 | hal_srng_access_end(scn->hal_soc, status_ring->srng_ctx); |
| 414 | |
| 415 | return status; |
| 416 | } |
| 417 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 418 | static QDF_STATUS |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 419 | ce_revoke_recv_next_srng(struct CE_handle *copyeng, |
| 420 | void **per_CE_contextp, |
| 421 | void **per_transfer_contextp, qdf_dma_addr_t *bufferp) |
| 422 | { |
Houston Hoffman | 72ddc02 | 2017-01-30 14:21:46 -0800 | [diff] [blame] | 423 | struct CE_state *CE_state = (struct CE_state *)copyeng; |
| 424 | struct CE_ring_state *dest_ring = CE_state->dest_ring; |
| 425 | unsigned int sw_index; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 426 | |
Houston Hoffman | 72ddc02 | 2017-01-30 14:21:46 -0800 | [diff] [blame] | 427 | if (!dest_ring) |
| 428 | return QDF_STATUS_E_FAILURE; |
| 429 | |
| 430 | sw_index = dest_ring->sw_index; |
| 431 | |
| 432 | if (per_CE_contextp) |
| 433 | *per_CE_contextp = CE_state->recv_context; |
| 434 | |
| 435 | /* NOTE: sw_index is more like a read_index in this context. It has a |
| 436 | * one-to-one mapping with status ring. |
| 437 | * Get the per trasnfer context from dest_ring. |
| 438 | */ |
| 439 | if (per_transfer_contextp) |
| 440 | *per_transfer_contextp = |
| 441 | dest_ring->per_transfer_context[sw_index]; |
| 442 | |
Jeff Johnson | 8d639a0 | 2019-03-18 09:51:11 -0700 | [diff] [blame] | 443 | if (!dest_ring->per_transfer_context[sw_index]) |
Houston Hoffman | 72ddc02 | 2017-01-30 14:21:46 -0800 | [diff] [blame] | 444 | return QDF_STATUS_E_FAILURE; |
| 445 | |
| 446 | /* provide end condition */ |
| 447 | dest_ring->per_transfer_context[sw_index] = NULL; |
| 448 | |
| 449 | /* Update sw_index */ |
| 450 | sw_index = CE_RING_IDX_INCR(dest_ring->nentries_mask, sw_index); |
| 451 | dest_ring->sw_index = sw_index; |
| 452 | return QDF_STATUS_SUCCESS; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | /* |
| 456 | * Guts of ce_completed_send_next. |
| 457 | * The caller takes responsibility for any necessary locking. |
| 458 | */ |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 459 | static int |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 460 | ce_completed_send_next_nolock_srng(struct CE_state *CE_state, |
| 461 | void **per_CE_contextp, |
| 462 | void **per_transfer_contextp, |
| 463 | qdf_dma_addr_t *bufferp, |
| 464 | unsigned int *nbytesp, |
| 465 | unsigned int *transfer_idp, |
| 466 | unsigned int *sw_idx, |
| 467 | unsigned int *hw_idx, |
| 468 | uint32_t *toeplitz_hash_result) |
| 469 | { |
| 470 | int status = QDF_STATUS_E_FAILURE; |
| 471 | struct CE_ring_state *src_ring = CE_state->src_ring; |
| 472 | unsigned int nentries_mask = src_ring->nentries_mask; |
| 473 | unsigned int sw_index = src_ring->sw_index; |
c_cgodav | fda96ad | 2017-09-07 16:16:00 +0530 | [diff] [blame] | 474 | unsigned int swi = src_ring->sw_index; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 475 | struct hif_softc *scn = CE_state->scn; |
| 476 | struct ce_srng_src_desc *src_desc; |
| 477 | |
| 478 | if (hal_srng_access_start(scn->hal_soc, src_ring->srng_ctx)) { |
| 479 | status = QDF_STATUS_E_FAILURE; |
| 480 | return status; |
| 481 | } |
| 482 | |
| 483 | src_desc = hal_srng_src_reap_next(scn->hal_soc, src_ring->srng_ctx); |
| 484 | if (src_desc) { |
c_cgodav | fda96ad | 2017-09-07 16:16:00 +0530 | [diff] [blame] | 485 | hif_record_ce_desc_event(scn, CE_state->id, |
| 486 | HIF_TX_DESC_COMPLETION, |
| 487 | (union ce_desc *)src_desc, |
| 488 | src_ring->per_transfer_context[swi], |
| 489 | swi, src_desc->nbytes); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 490 | |
| 491 | /* Return data from completed source descriptor */ |
| 492 | *bufferp = (qdf_dma_addr_t) |
| 493 | (((uint64_t)(src_desc)->buffer_addr_lo + |
| 494 | ((uint64_t)((src_desc)->buffer_addr_hi & |
| 495 | 0xFF) << 32))); |
| 496 | *nbytesp = src_desc->nbytes; |
| 497 | *transfer_idp = src_desc->meta_data; |
| 498 | *toeplitz_hash_result = 0; /*src_desc->toeplitz_hash_result;*/ |
| 499 | |
| 500 | if (per_CE_contextp) |
| 501 | *per_CE_contextp = CE_state->send_context; |
| 502 | |
| 503 | /* sw_index is used more like read index */ |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 504 | if (per_transfer_contextp) |
Houston Hoffman | 3274fbc | 2017-01-26 22:32:26 -0800 | [diff] [blame] | 505 | *per_transfer_contextp = |
| 506 | src_ring->per_transfer_context[sw_index]; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 507 | |
| 508 | src_ring->per_transfer_context[sw_index] = 0; /* sanity */ |
| 509 | |
| 510 | /* Update sw_index */ |
| 511 | sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index); |
| 512 | src_ring->sw_index = sw_index; |
| 513 | status = QDF_STATUS_SUCCESS; |
| 514 | } |
Pamidipati, Vijay | dfe618e | 2016-10-09 09:17:24 +0530 | [diff] [blame] | 515 | hal_srng_access_end_reap(scn->hal_soc, src_ring->srng_ctx); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 516 | |
| 517 | return status; |
| 518 | } |
| 519 | |
| 520 | /* NB: Modelled after ce_completed_send_next */ |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 521 | static QDF_STATUS |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 522 | ce_cancel_send_next_srng(struct CE_handle *copyeng, |
| 523 | void **per_CE_contextp, |
| 524 | void **per_transfer_contextp, |
| 525 | qdf_dma_addr_t *bufferp, |
| 526 | unsigned int *nbytesp, |
| 527 | unsigned int *transfer_idp, |
| 528 | uint32_t *toeplitz_hash_result) |
| 529 | { |
Kiran Venkatappa | c686275 | 2017-07-09 22:44:17 +0530 | [diff] [blame] | 530 | struct CE_state *CE_state; |
| 531 | int status = QDF_STATUS_E_FAILURE; |
| 532 | struct CE_ring_state *src_ring; |
| 533 | unsigned int nentries_mask; |
| 534 | unsigned int sw_index; |
| 535 | struct hif_softc *scn; |
| 536 | struct ce_srng_src_desc *src_desc; |
| 537 | |
| 538 | CE_state = (struct CE_state *)copyeng; |
| 539 | src_ring = CE_state->src_ring; |
| 540 | if (!src_ring) |
| 541 | return QDF_STATUS_E_FAILURE; |
| 542 | |
| 543 | nentries_mask = src_ring->nentries_mask; |
| 544 | sw_index = src_ring->sw_index; |
| 545 | scn = CE_state->scn; |
| 546 | |
| 547 | if (hal_srng_access_start(scn->hal_soc, src_ring->srng_ctx)) { |
| 548 | status = QDF_STATUS_E_FAILURE; |
| 549 | return status; |
| 550 | } |
| 551 | |
| 552 | src_desc = hal_srng_src_pending_reap_next(scn->hal_soc, |
| 553 | src_ring->srng_ctx); |
| 554 | if (src_desc) { |
| 555 | /* Return data from completed source descriptor */ |
| 556 | *bufferp = (qdf_dma_addr_t) |
| 557 | (((uint64_t)(src_desc)->buffer_addr_lo + |
| 558 | ((uint64_t)((src_desc)->buffer_addr_hi & |
| 559 | 0xFF) << 32))); |
| 560 | *nbytesp = src_desc->nbytes; |
| 561 | *transfer_idp = src_desc->meta_data; |
| 562 | *toeplitz_hash_result = 0; /*src_desc->toeplitz_hash_result;*/ |
| 563 | |
| 564 | if (per_CE_contextp) |
| 565 | *per_CE_contextp = CE_state->send_context; |
| 566 | |
| 567 | /* sw_index is used more like read index */ |
| 568 | if (per_transfer_contextp) |
| 569 | *per_transfer_contextp = |
| 570 | src_ring->per_transfer_context[sw_index]; |
| 571 | |
| 572 | src_ring->per_transfer_context[sw_index] = 0; /* sanity */ |
| 573 | |
| 574 | /* Update sw_index */ |
| 575 | sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index); |
| 576 | src_ring->sw_index = sw_index; |
| 577 | status = QDF_STATUS_SUCCESS; |
| 578 | } |
| 579 | hal_srng_access_end_reap(scn->hal_soc, src_ring->srng_ctx); |
| 580 | |
| 581 | return status; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 582 | } |
| 583 | |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 584 | /* |
| 585 | * Adjust interrupts for the copy complete handler. |
| 586 | * If it's needed for either send or recv, then unmask |
| 587 | * this interrupt; otherwise, mask it. |
| 588 | * |
| 589 | * Called with target_lock held. |
| 590 | */ |
| 591 | static void |
| 592 | ce_per_engine_handler_adjust_srng(struct CE_state *CE_state, |
| 593 | int disable_copy_compl_intr) |
| 594 | { |
| 595 | } |
| 596 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 597 | static bool ce_check_int_watermark_srng(struct CE_state *CE_state, |
| 598 | unsigned int *flags) |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 599 | { |
| 600 | /*TODO*/ |
| 601 | return false; |
| 602 | } |
| 603 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 604 | static uint32_t ce_get_desc_size_srng(uint8_t ring_type) |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 605 | { |
| 606 | switch (ring_type) { |
| 607 | case CE_RING_SRC: |
| 608 | return sizeof(struct ce_srng_src_desc); |
| 609 | case CE_RING_DEST: |
| 610 | return sizeof(struct ce_srng_dest_desc); |
| 611 | case CE_RING_STATUS: |
| 612 | return sizeof(struct ce_srng_dest_status_desc); |
| 613 | default: |
| 614 | return 0; |
| 615 | } |
| 616 | return 0; |
| 617 | } |
| 618 | |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 619 | static void ce_srng_msi_ring_params_setup(struct hif_softc *scn, uint32_t ce_id, |
| 620 | struct hal_srng_params *ring_params) |
| 621 | { |
| 622 | uint32_t addr_low; |
| 623 | uint32_t addr_high; |
| 624 | uint32_t msi_data_start; |
| 625 | uint32_t msi_data_count; |
| 626 | uint32_t msi_irq_start; |
| 627 | int ret; |
| 628 | |
| 629 | ret = pld_get_user_msi_assignment(scn->qdf_dev->dev, "CE", |
| 630 | &msi_data_count, &msi_data_start, |
| 631 | &msi_irq_start); |
| 632 | |
| 633 | /* msi config not found */ |
| 634 | if (ret) |
| 635 | return; |
| 636 | |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 637 | pld_get_msi_address(scn->qdf_dev->dev, &addr_low, &addr_high); |
| 638 | |
| 639 | ring_params->msi_addr = addr_low; |
| 640 | ring_params->msi_addr |= (qdf_dma_addr_t)(((uint64_t)addr_high) << 32); |
| 641 | ring_params->msi_data = (ce_id % msi_data_count) + msi_data_start; |
| 642 | ring_params->flags |= HAL_SRNG_MSI_INTR; |
| 643 | |
Jeff Johnson | b945021 | 2017-09-18 10:12:38 -0700 | [diff] [blame] | 644 | HIF_DBG("%s: ce_id %d, msi_addr %pK, msi_data %d", __func__, ce_id, |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 645 | (void *)ring_params->msi_addr, ring_params->msi_data); |
| 646 | } |
| 647 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 648 | static void ce_srng_src_ring_setup(struct hif_softc *scn, uint32_t ce_id, |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 649 | struct CE_ring_state *src_ring, |
| 650 | struct CE_attr *attr) |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 651 | { |
| 652 | struct hal_srng_params ring_params = {0}; |
| 653 | |
Rakesh Pillai | 51264a6 | 2019-05-08 19:15:56 +0530 | [diff] [blame^] | 654 | hif_debug("%s: ce_id %d", __func__, ce_id); |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 655 | |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 656 | ring_params.ring_base_paddr = src_ring->base_addr_CE_space; |
| 657 | ring_params.ring_base_vaddr = src_ring->base_addr_owner_space; |
| 658 | ring_params.num_entries = src_ring->nentries; |
Houston Hoffman | 202425d | 2016-10-17 19:42:48 -0700 | [diff] [blame] | 659 | /* |
| 660 | * The minimum increment for the timer is 8us |
| 661 | * A default value of 0 disables the timer |
| 662 | * A valid default value caused continuous interrupts to |
| 663 | * fire with MSI enabled. Need to revisit usage of the timer |
| 664 | */ |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 665 | |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 666 | if (!(CE_ATTR_DISABLE_INTR & attr->flags)) { |
| 667 | ce_srng_msi_ring_params_setup(scn, ce_id, &ring_params); |
| 668 | |
| 669 | ring_params.intr_timer_thres_us = 0; |
| 670 | ring_params.intr_batch_cntr_thres_entries = 1; |
| 671 | } |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 672 | |
| 673 | src_ring->srng_ctx = hal_srng_setup(scn->hal_soc, CE_SRC, ce_id, 0, |
| 674 | &ring_params); |
| 675 | } |
| 676 | |
Houston Hoffman | 9b55b5f | 2017-08-07 14:26:35 -0700 | [diff] [blame] | 677 | /** |
| 678 | * ce_srng_initialize_dest_timer_interrupt_war() - war initialization |
| 679 | * @dest_ring: ring being initialized |
| 680 | * @ring_params: pointer to initialized parameters |
| 681 | * |
| 682 | * For Napier & Hawkeye v1, the status ring timer interrupts do not work |
| 683 | * As a work arround host configures the destination rings to be a proxy for |
| 684 | * work needing to be done. |
| 685 | * |
| 686 | * The interrupts are setup such that if the destination ring is less than fully |
| 687 | * posted, there is likely undone work for the status ring that the host should |
| 688 | * process. |
| 689 | * |
| 690 | * There is a timing bug in srng based copy engines such that a fully posted |
| 691 | * srng based copy engine has 2 empty entries instead of just one. The copy |
| 692 | * engine data sturctures work with 1 empty entry, but the software frequently |
| 693 | * fails to post the last entry due to the race condition. |
| 694 | */ |
| 695 | static void ce_srng_initialize_dest_timer_interrupt_war( |
| 696 | struct CE_ring_state *dest_ring, |
| 697 | struct hal_srng_params *ring_params) { |
| 698 | int num_buffers_when_fully_posted = dest_ring->nentries - 2; |
| 699 | |
| 700 | ring_params->low_threshold = num_buffers_when_fully_posted - 1; |
| 701 | ring_params->intr_timer_thres_us = 1024; |
| 702 | ring_params->intr_batch_cntr_thres_entries = 0; |
| 703 | ring_params->flags |= HAL_SRNG_LOW_THRES_INTR_ENABLE; |
| 704 | } |
| 705 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 706 | static void ce_srng_dest_ring_setup(struct hif_softc *scn, uint32_t ce_id, |
Houston Hoffman | 7410912 | 2016-10-21 14:58:34 -0700 | [diff] [blame] | 707 | struct CE_ring_state *dest_ring, |
| 708 | struct CE_attr *attr) |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 709 | { |
| 710 | struct hal_srng_params ring_params = {0}; |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 711 | bool status_ring_timer_thresh_work_arround = true; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 712 | |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 713 | HIF_INFO("%s: ce_id %d", __func__, ce_id); |
| 714 | |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 715 | ring_params.ring_base_paddr = dest_ring->base_addr_CE_space; |
| 716 | ring_params.ring_base_vaddr = dest_ring->base_addr_owner_space; |
| 717 | ring_params.num_entries = dest_ring->nentries; |
Houston Hoffman | 7410912 | 2016-10-21 14:58:34 -0700 | [diff] [blame] | 718 | ring_params.max_buffer_length = attr->src_sz_max; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 719 | |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 720 | if (!(CE_ATTR_DISABLE_INTR & attr->flags)) { |
| 721 | ce_srng_msi_ring_params_setup(scn, ce_id, &ring_params); |
| 722 | if (status_ring_timer_thresh_work_arround) { |
Houston Hoffman | 9b55b5f | 2017-08-07 14:26:35 -0700 | [diff] [blame] | 723 | ce_srng_initialize_dest_timer_interrupt_war( |
| 724 | dest_ring, &ring_params); |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 725 | } else { |
| 726 | /* normal behavior for future chips */ |
| 727 | ring_params.low_threshold = dest_ring->nentries >> 3; |
| 728 | ring_params.intr_timer_thres_us = 100000; |
| 729 | ring_params.intr_batch_cntr_thres_entries = 0; |
| 730 | ring_params.flags |= HAL_SRNG_LOW_THRES_INTR_ENABLE; |
| 731 | } |
| 732 | } |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 733 | |
| 734 | /*Dest ring is also source ring*/ |
| 735 | dest_ring->srng_ctx = hal_srng_setup(scn->hal_soc, CE_DST, ce_id, 0, |
| 736 | &ring_params); |
| 737 | } |
| 738 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 739 | static void ce_srng_status_ring_setup(struct hif_softc *scn, uint32_t ce_id, |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 740 | struct CE_ring_state *status_ring, |
| 741 | struct CE_attr *attr) |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 742 | { |
| 743 | struct hal_srng_params ring_params = {0}; |
| 744 | |
Houston Hoffman | 1501077 | 2016-09-16 14:01:13 -0700 | [diff] [blame] | 745 | HIF_INFO("%s: ce_id %d", __func__, ce_id); |
| 746 | |
| 747 | ce_srng_msi_ring_params_setup(scn, ce_id, &ring_params); |
| 748 | |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 749 | ring_params.ring_base_paddr = status_ring->base_addr_CE_space; |
| 750 | ring_params.ring_base_vaddr = status_ring->base_addr_owner_space; |
| 751 | ring_params.num_entries = status_ring->nentries; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 752 | |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 753 | if (!(CE_ATTR_DISABLE_INTR & attr->flags)) { |
| 754 | ring_params.intr_timer_thres_us = 0x1000; |
| 755 | ring_params.intr_batch_cntr_thres_entries = 0x1; |
| 756 | } |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 757 | |
| 758 | status_ring->srng_ctx = hal_srng_setup(scn->hal_soc, CE_DST_STATUS, |
| 759 | ce_id, 0, &ring_params); |
| 760 | } |
| 761 | |
Yun Park | 3fb3644 | 2017-08-17 17:37:53 -0700 | [diff] [blame] | 762 | static int ce_ring_setup_srng(struct hif_softc *scn, uint8_t ring_type, |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 763 | uint32_t ce_id, struct CE_ring_state *ring, |
| 764 | struct CE_attr *attr) |
| 765 | { |
| 766 | switch (ring_type) { |
| 767 | case CE_RING_SRC: |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 768 | ce_srng_src_ring_setup(scn, ce_id, ring, attr); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 769 | break; |
| 770 | case CE_RING_DEST: |
Houston Hoffman | 7410912 | 2016-10-21 14:58:34 -0700 | [diff] [blame] | 771 | ce_srng_dest_ring_setup(scn, ce_id, ring, attr); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 772 | break; |
| 773 | case CE_RING_STATUS: |
Houston Hoffman | 648a918 | 2017-05-21 23:27:50 -0700 | [diff] [blame] | 774 | ce_srng_status_ring_setup(scn, ce_id, ring, attr); |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 775 | break; |
| 776 | default: |
| 777 | qdf_assert(0); |
| 778 | break; |
| 779 | } |
Yun Park | 3fb3644 | 2017-08-17 17:37:53 -0700 | [diff] [blame] | 780 | |
| 781 | return 0; |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 782 | } |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 783 | |
Houston Hoffman | 10fedfc | 2017-01-23 15:23:09 -0800 | [diff] [blame] | 784 | static void ce_construct_shadow_config_srng(struct hif_softc *scn) |
| 785 | { |
| 786 | struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); |
| 787 | int ce_id; |
| 788 | |
| 789 | for (ce_id = 0; ce_id < scn->ce_count; ce_id++) { |
| 790 | if (hif_state->host_ce_config[ce_id].src_nentries) |
| 791 | hal_set_one_shadow_config(scn->hal_soc, |
| 792 | CE_SRC, ce_id); |
| 793 | |
| 794 | if (hif_state->host_ce_config[ce_id].dest_nentries) { |
| 795 | hal_set_one_shadow_config(scn->hal_soc, |
| 796 | CE_DST, ce_id); |
| 797 | |
| 798 | hal_set_one_shadow_config(scn->hal_soc, |
| 799 | CE_DST_STATUS, ce_id); |
| 800 | } |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | static void ce_prepare_shadow_register_v2_cfg_srng(struct hif_softc *scn, |
| 805 | struct pld_shadow_reg_v2_cfg **shadow_config, |
| 806 | int *num_shadow_registers_configured) |
| 807 | { |
Jeff Johnson | 8d639a0 | 2019-03-18 09:51:11 -0700 | [diff] [blame] | 808 | if (!scn->hal_soc) { |
Houston Hoffman | 10fedfc | 2017-01-23 15:23:09 -0800 | [diff] [blame] | 809 | HIF_ERROR("%s: hal not initialized: not initializing shadow config", |
| 810 | __func__); |
| 811 | return; |
| 812 | } |
| 813 | |
| 814 | hal_get_shadow_config(scn->hal_soc, shadow_config, |
| 815 | num_shadow_registers_configured); |
| 816 | |
| 817 | if (*num_shadow_registers_configured != 0) { |
| 818 | HIF_ERROR("%s: hal shadow register configuration allready constructed", |
| 819 | __func__); |
| 820 | |
| 821 | /* return with original configuration*/ |
| 822 | return; |
| 823 | } |
| 824 | |
| 825 | hal_construct_shadow_config(scn->hal_soc); |
| 826 | ce_construct_shadow_config_srng(scn); |
| 827 | |
| 828 | /* get updated configuration */ |
| 829 | hal_get_shadow_config(scn->hal_soc, shadow_config, |
| 830 | num_shadow_registers_configured); |
| 831 | } |
| 832 | |
Jeff Johnson | 0571813 | 2016-12-17 10:18:17 -0800 | [diff] [blame] | 833 | static struct ce_ops ce_service_srng = { |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 834 | .ce_get_desc_size = ce_get_desc_size_srng, |
| 835 | .ce_ring_setup = ce_ring_setup_srng, |
| 836 | .ce_sendlist_send = ce_sendlist_send_srng, |
| 837 | .ce_completed_recv_next_nolock = ce_completed_recv_next_nolock_srng, |
| 838 | .ce_revoke_recv_next = ce_revoke_recv_next_srng, |
| 839 | .ce_cancel_send_next = ce_cancel_send_next_srng, |
| 840 | .ce_recv_buf_enqueue = ce_recv_buf_enqueue_srng, |
| 841 | .ce_per_engine_handler_adjust = ce_per_engine_handler_adjust_srng, |
| 842 | .ce_send_nolock = ce_send_nolock_srng, |
| 843 | .watermark_int = ce_check_int_watermark_srng, |
| 844 | .ce_completed_send_next_nolock = ce_completed_send_next_nolock_srng, |
| 845 | .ce_recv_entries_done_nolock = ce_recv_entries_done_nolock_srng, |
| 846 | .ce_send_entries_done_nolock = ce_send_entries_done_nolock_srng, |
Houston Hoffman | 10fedfc | 2017-01-23 15:23:09 -0800 | [diff] [blame] | 847 | .ce_prepare_shadow_register_v2_cfg = |
| 848 | ce_prepare_shadow_register_v2_cfg_srng, |
Kiran Venkatappa | f41ef2e | 2016-09-05 10:59:58 +0530 | [diff] [blame] | 849 | }; |
| 850 | |
| 851 | struct ce_ops *ce_services_srng() |
| 852 | { |
| 853 | return &ce_service_srng; |
| 854 | } |
Pratik Gandhi | dc82a77 | 2018-01-30 18:57:05 +0530 | [diff] [blame] | 855 | qdf_export_symbol(ce_services_srng); |
Sathish Kumar | 8687649 | 2018-08-27 13:39:20 +0530 | [diff] [blame] | 856 | |
| 857 | void ce_service_srng_init(void) |
| 858 | { |
| 859 | ce_service_register_module(CE_SVC_SRNG, &ce_services_srng); |
| 860 | } |