Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 1 | /* |
phadiman | a1f7982 | 2019-02-15 15:02:37 +0530 | [diff] [blame] | 2 | * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved. |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [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 | |
Balamurugan Mahalingam | f72cb1f | 2018-06-25 12:18:34 +0530 | [diff] [blame] | 19 | #include "hal_hw_headers.h" |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 20 | #include "dp_types.h" |
| 21 | #include "dp_tx_desc.h" |
| 22 | |
| 23 | #ifndef DESC_PARTITION |
| 24 | #define DP_TX_DESC_SIZE(a) qdf_get_pwr2(a) |
| 25 | #define DP_TX_DESC_PAGE_DIVIDER(soc, num_desc_per_page, pool_id) \ |
| 26 | do { \ |
| 27 | uint8_t sig_bit; \ |
| 28 | soc->tx_desc[pool_id].offset_filter = num_desc_per_page - 1; \ |
| 29 | /* Calculate page divider to find page number */ \ |
| 30 | sig_bit = 0; \ |
| 31 | while (num_desc_per_page) { \ |
| 32 | sig_bit++; \ |
| 33 | num_desc_per_page = num_desc_per_page >> 1; \ |
| 34 | } \ |
| 35 | soc->tx_desc[pool_id].page_divider = (sig_bit - 1); \ |
| 36 | } while (0) |
| 37 | #else |
| 38 | #define DP_TX_DESC_SIZE(a) a |
| 39 | #define DP_TX_DESC_PAGE_DIVIDER(soc, num_desc_per_page, pool_id) {} |
| 40 | #endif /* DESC_PARTITION */ |
| 41 | |
| 42 | /** |
Soumya Bhat | dbb8530 | 2018-05-18 11:01:34 +0530 | [diff] [blame] | 43 | * dp_tx_desc_pool_counter_initialize() - Initialize counters |
| 44 | * @tx_desc_pool Handle to DP tx_desc_pool structure |
| 45 | * @num_elem Number of descriptor elements per pool |
| 46 | * |
| 47 | * Return: None |
| 48 | */ |
| 49 | #ifdef QCA_LL_TX_FLOW_CONTROL_V2 |
| 50 | static void |
| 51 | dp_tx_desc_pool_counter_initialize(struct dp_tx_desc_pool_s *tx_desc_pool, |
| 52 | uint16_t num_elem) |
| 53 | { |
| 54 | } |
| 55 | #else |
| 56 | static void |
| 57 | dp_tx_desc_pool_counter_initialize(struct dp_tx_desc_pool_s *tx_desc_pool, |
| 58 | uint16_t num_elem) |
| 59 | { |
| 60 | tx_desc_pool->num_free = num_elem; |
| 61 | tx_desc_pool->num_allocated = 0; |
| 62 | } |
| 63 | #endif |
| 64 | |
| 65 | /** |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 66 | * dp_tx_desc_pool_alloc() - Allocate Tx Descriptor pool(s) |
| 67 | * @soc Handle to DP SoC structure |
| 68 | * @num_pool Number of pools to allocate |
| 69 | * @num_elem Number of descriptor elements per pool |
| 70 | * |
| 71 | * This function allocates memory for SW tx descriptors |
| 72 | * (used within host for tx data path). |
| 73 | * The number of tx descriptors required will be large |
| 74 | * since based on number of clients (1024 clients x 3 radios), |
| 75 | * outstanding MSDUs stored in TQM queues and LMAC queues will be significantly |
| 76 | * large. |
| 77 | * |
| 78 | * To avoid allocating a large contiguous memory, it uses multi_page_alloc qdf |
| 79 | * function to allocate memory |
| 80 | * in multiple pages. It then iterates through the memory allocated across pages |
| 81 | * and links each descriptor |
| 82 | * to next descriptor, taking care of page boundaries. |
| 83 | * |
| 84 | * Since WiFi 3.0 HW supports multiple Tx rings, multiple pools are allocated, |
| 85 | * one for each ring; |
| 86 | * This minimizes lock contention when hard_start_xmit is called |
| 87 | * from multiple CPUs. |
| 88 | * Alternately, multiple pools can be used for multiple VDEVs for VDEV level |
| 89 | * flow control. |
| 90 | * |
| 91 | * Return: Status code. 0 for success. |
| 92 | */ |
| 93 | QDF_STATUS dp_tx_desc_pool_alloc(struct dp_soc *soc, uint8_t pool_id, |
| 94 | uint16_t num_elem) |
| 95 | { |
| 96 | uint32_t id, count, page_id, offset, pool_id_32; |
Varun Reddy Yeturu | a7c21dc | 2019-05-16 14:03:46 -0700 | [diff] [blame] | 97 | uint16_t num_desc_per_page; |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 98 | struct dp_tx_desc_s *tx_desc_elem; |
| 99 | uint32_t desc_size; |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 100 | struct dp_tx_desc_pool_s *tx_desc_pool = &((soc)->tx_desc[(pool_id)]); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 101 | |
| 102 | desc_size = DP_TX_DESC_SIZE(sizeof(*tx_desc_elem)); |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 103 | tx_desc_pool->elem_size = desc_size; |
phadiman | a1f7982 | 2019-02-15 15:02:37 +0530 | [diff] [blame] | 104 | if (!dp_is_soc_reinit(soc)) |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 105 | qdf_mem_multi_pages_alloc(soc->osdev, |
| 106 | &tx_desc_pool->desc_pages, |
| 107 | desc_size, num_elem, |
| 108 | 0, true); |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 109 | if (!tx_desc_pool->desc_pages.num_pages) { |
Varun Reddy Yeturu | 83a31a3 | 2019-06-06 15:37:21 -0700 | [diff] [blame] | 110 | dp_err("Multi page alloc fail, tx desc"); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 111 | goto fail_exit; |
| 112 | } |
| 113 | |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 114 | |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 115 | num_desc_per_page = |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 116 | tx_desc_pool->desc_pages.num_element_per_page; |
| 117 | tx_desc_pool->freelist = (struct dp_tx_desc_s *) |
| 118 | *tx_desc_pool->desc_pages.cacheable_pages; |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 119 | if (qdf_mem_multi_page_link(soc->osdev, |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 120 | &tx_desc_pool->desc_pages, |
| 121 | desc_size, num_elem, true)) { |
Varun Reddy Yeturu | 83a31a3 | 2019-06-06 15:37:21 -0700 | [diff] [blame] | 122 | dp_err("invalid tx desc allocation - overflow num link"); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 123 | goto free_tx_desc; |
| 124 | } |
| 125 | |
| 126 | /* Set unique IDs for each Tx descriptor */ |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 127 | tx_desc_elem = tx_desc_pool->freelist; |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 128 | count = 0; |
| 129 | pool_id_32 = (uint32_t)pool_id; |
| 130 | while (tx_desc_elem) { |
| 131 | page_id = count / num_desc_per_page; |
| 132 | offset = count % num_desc_per_page; |
| 133 | id = ((pool_id_32 << DP_TX_DESC_ID_POOL_OS) | |
| 134 | (page_id << DP_TX_DESC_ID_PAGE_OS) | offset); |
| 135 | |
| 136 | tx_desc_elem->id = id; |
| 137 | tx_desc_elem->pool_id = pool_id; |
| 138 | tx_desc_elem = tx_desc_elem->next; |
| 139 | count++; |
| 140 | } |
| 141 | |
Soumya Bhat | dbb8530 | 2018-05-18 11:01:34 +0530 | [diff] [blame] | 142 | dp_tx_desc_pool_counter_initialize(tx_desc_pool, num_elem); |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 143 | TX_DESC_LOCK_CREATE(&tx_desc_pool->lock); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 144 | return QDF_STATUS_SUCCESS; |
| 145 | |
| 146 | free_tx_desc: |
| 147 | qdf_mem_multi_pages_free(soc->osdev, |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 148 | &tx_desc_pool->desc_pages, 0, true); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 149 | |
| 150 | fail_exit: |
| 151 | return QDF_STATUS_E_FAULT; |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * dp_tx_desc_pool_free() - Free the memory pool allocated for Tx Descriptors |
| 156 | * |
| 157 | * @soc Handle to DP SoC structure |
| 158 | * @pool_id |
| 159 | * |
| 160 | * Return: |
| 161 | */ |
| 162 | QDF_STATUS dp_tx_desc_pool_free(struct dp_soc *soc, uint8_t pool_id) |
| 163 | { |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 164 | struct dp_tx_desc_pool_s *tx_desc_pool = |
| 165 | &((soc)->tx_desc[(pool_id)]); |
| 166 | |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 167 | qdf_mem_multi_pages_free(soc->osdev, |
Manjunathappa Prakash | ced7ea6 | 2017-07-02 03:02:15 -0700 | [diff] [blame] | 168 | &tx_desc_pool->desc_pages, 0, true); |
| 169 | TX_DESC_LOCK_DESTROY(&tx_desc_pool->lock); |
Jinwei Chen | 15da8a5 | 2018-05-22 16:12:10 +0800 | [diff] [blame] | 170 | TX_DESC_POOL_MEMBER_CLEAN(tx_desc_pool); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 171 | return QDF_STATUS_SUCCESS; |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * dp_tx_ext_desc_pool_alloc() - Allocate tx ext descriptor pool |
| 176 | * @soc Handle to DP SoC structure |
| 177 | * @pool_id |
| 178 | * |
| 179 | * Return: NONE |
| 180 | */ |
| 181 | QDF_STATUS dp_tx_ext_desc_pool_alloc(struct dp_soc *soc, uint8_t pool_id, |
| 182 | uint16_t num_elem) |
| 183 | { |
| 184 | uint16_t num_page; |
| 185 | uint32_t count; |
| 186 | struct dp_tx_ext_desc_elem_s *c_elem, *p_elem; |
| 187 | struct qdf_mem_dma_page_t *page_info; |
| 188 | struct qdf_mem_multi_page_t *pages; |
| 189 | QDF_STATUS status; |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 190 | qdf_dma_context_t memctx = 0; |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 191 | |
| 192 | /* Coherent tx extension descriptor alloc */ |
Ishank Jain | 2f81e96 | 2017-01-23 22:42:37 +0530 | [diff] [blame] | 193 | soc->tx_ext_desc[pool_id].elem_size = HAL_TX_EXT_DESC_WITH_META_DATA; |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 194 | soc->tx_ext_desc[pool_id].elem_count = num_elem; |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 195 | memctx = qdf_get_dma_mem_context((&soc->tx_ext_desc[pool_id]), memctx); |
phadiman | a1f7982 | 2019-02-15 15:02:37 +0530 | [diff] [blame] | 196 | if (!dp_is_soc_reinit(soc)) { |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 197 | qdf_mem_multi_pages_alloc(soc->osdev, |
| 198 | &soc->tx_ext_desc[pool_id]. |
| 199 | desc_pages, |
| 200 | soc->tx_ext_desc[pool_id].elem_size, |
| 201 | soc->tx_ext_desc[pool_id].elem_count, |
| 202 | memctx, false); |
| 203 | } |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 204 | if (!soc->tx_ext_desc[pool_id].desc_pages.num_pages) { |
| 205 | QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 206 | "ext desc page alloc fail"); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 207 | status = QDF_STATUS_E_NOMEM; |
| 208 | goto fail_exit; |
| 209 | } |
| 210 | |
| 211 | num_page = soc->tx_ext_desc[pool_id].desc_pages.num_pages; |
| 212 | /* |
| 213 | * Cacheable ext descriptor link alloc |
| 214 | * This structure also large size already |
| 215 | * single element is 24bytes, 2K elements are 48Kbytes |
| 216 | * Have to alloc multi page cacheable memory |
| 217 | */ |
| 218 | soc->tx_ext_desc[pool_id].link_elem_size = |
| 219 | sizeof(struct dp_tx_ext_desc_elem_s); |
phadiman | a1f7982 | 2019-02-15 15:02:37 +0530 | [diff] [blame] | 220 | if (!dp_is_soc_reinit(soc)) { |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 221 | qdf_mem_multi_pages_alloc(soc->osdev, |
| 222 | &soc->tx_ext_desc[pool_id]. |
| 223 | desc_link_pages, |
| 224 | soc->tx_ext_desc[pool_id]. |
| 225 | link_elem_size, |
| 226 | soc->tx_ext_desc[pool_id]. |
| 227 | elem_count, |
| 228 | 0, true); |
| 229 | } |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 230 | if (!soc->tx_ext_desc[pool_id].desc_link_pages.num_pages) { |
| 231 | QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 232 | "ext link desc page alloc fail"); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 233 | status = QDF_STATUS_E_NOMEM; |
| 234 | goto free_ext_desc_page; |
| 235 | } |
| 236 | |
| 237 | /* link tx descriptors into a freelist */ |
| 238 | soc->tx_ext_desc[pool_id].freelist = (struct dp_tx_ext_desc_elem_s *) |
| 239 | *soc->tx_ext_desc[pool_id].desc_link_pages.cacheable_pages; |
| 240 | if (qdf_mem_multi_page_link(soc->osdev, |
| 241 | &soc->tx_ext_desc[pool_id].desc_link_pages, |
| 242 | soc->tx_ext_desc[pool_id].link_elem_size, |
| 243 | soc->tx_ext_desc[pool_id].elem_count, true)) { |
| 244 | QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 245 | "ext link desc page linking fail"); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 246 | status = QDF_STATUS_E_FAULT; |
| 247 | goto free_ext_link_desc_page; |
| 248 | } |
| 249 | |
| 250 | /* Assign coherent memory pointer into linked free list */ |
| 251 | pages = &soc->tx_ext_desc[pool_id].desc_pages; |
| 252 | page_info = soc->tx_ext_desc[pool_id].desc_pages.dma_pages; |
| 253 | c_elem = soc->tx_ext_desc[pool_id].freelist; |
| 254 | p_elem = c_elem; |
| 255 | for (count = 0; count < soc->tx_ext_desc[pool_id].elem_count; count++) { |
| 256 | if (!(count % pages->num_element_per_page)) { |
| 257 | /** |
| 258 | * First element for new page, |
| 259 | * should point next page |
| 260 | */ |
| 261 | if (!pages->dma_pages->page_v_addr_start) { |
| 262 | QDF_TRACE(QDF_MODULE_ID_DP, |
| 263 | QDF_TRACE_LEVEL_ERROR, |
| 264 | "link over flow"); |
| 265 | status = QDF_STATUS_E_FAULT; |
| 266 | goto free_ext_link_desc_page; |
| 267 | } |
| 268 | c_elem->vaddr = (void *)page_info->page_v_addr_start; |
| 269 | c_elem->paddr = page_info->page_p_addr; |
| 270 | page_info++; |
| 271 | } else { |
| 272 | c_elem->vaddr = (void *)(p_elem->vaddr + |
| 273 | soc->tx_ext_desc[pool_id].elem_size); |
| 274 | c_elem->paddr = (p_elem->paddr + |
| 275 | soc->tx_ext_desc[pool_id].elem_size); |
| 276 | } |
| 277 | p_elem = c_elem; |
| 278 | c_elem = c_elem->next; |
| 279 | if (!c_elem) |
| 280 | break; |
| 281 | } |
| 282 | |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 283 | soc->tx_ext_desc[pool_id].num_free = num_elem; |
Manjunathappa Prakash | ddf0740 | 2017-12-02 21:36:16 -0800 | [diff] [blame] | 284 | qdf_spinlock_create(&soc->tx_ext_desc[pool_id].lock); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 285 | return QDF_STATUS_SUCCESS; |
| 286 | |
| 287 | free_ext_link_desc_page: |
| 288 | qdf_mem_multi_pages_free(soc->osdev, |
| 289 | &soc->tx_ext_desc[pool_id].desc_link_pages, 0, true); |
| 290 | |
| 291 | free_ext_desc_page: |
| 292 | qdf_mem_multi_pages_free(soc->osdev, |
| 293 | &soc->tx_ext_desc[pool_id].desc_pages, |
| 294 | qdf_get_dma_mem_context((&soc->tx_ext_desc[pool_id]), memctx), |
| 295 | false); |
| 296 | |
| 297 | fail_exit: |
| 298 | return status; |
| 299 | |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * dp_tx_ext_desc_pool_free() - free tx ext descriptor pool |
| 304 | * @soc: Handle to DP SoC structure |
| 305 | * @pool_id: extension descriptor pool id |
| 306 | * |
| 307 | * Return: NONE |
| 308 | */ |
| 309 | QDF_STATUS dp_tx_ext_desc_pool_free(struct dp_soc *soc, uint8_t pool_id) |
| 310 | { |
| 311 | qdf_mem_multi_pages_free(soc->osdev, |
| 312 | &soc->tx_ext_desc[pool_id].desc_link_pages, 0, true); |
| 313 | |
| 314 | qdf_mem_multi_pages_free(soc->osdev, |
| 315 | &soc->tx_ext_desc[pool_id].desc_pages, |
| 316 | qdf_get_dma_mem_context((&soc->tx_ext_desc[pool_id]), memctx), |
| 317 | false); |
| 318 | |
Manjunathappa Prakash | ddf0740 | 2017-12-02 21:36:16 -0800 | [diff] [blame] | 319 | qdf_spinlock_destroy(&soc->tx_ext_desc[pool_id].lock); |
Leo Chang | c2a7b76 | 2016-09-26 13:15:41 -0700 | [diff] [blame] | 320 | return QDF_STATUS_SUCCESS; |
| 321 | } |
| 322 | |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 323 | /** |
| 324 | * dp_tx_tso_desc_pool_alloc() - allocate tx tso descriptor pool |
| 325 | * @soc: Handle to DP SoC structure |
| 326 | * @pool_id: tso descriptor pool id |
| 327 | * @num_elem: number of element |
| 328 | * |
| 329 | * Return: QDF_STATUS_SUCCESS |
| 330 | */ |
| 331 | #if defined(FEATURE_TSO) |
| 332 | QDF_STATUS dp_tx_tso_desc_pool_alloc(struct dp_soc *soc, uint8_t pool_id, |
| 333 | uint16_t num_elem) |
| 334 | { |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 335 | struct dp_tx_tso_seg_pool_s *tso_desc_pool; |
| 336 | uint32_t desc_size; |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 337 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 338 | tso_desc_pool = &soc->tx_tso_desc[pool_id]; |
| 339 | tso_desc_pool->num_free = 0; |
| 340 | desc_size = DP_TX_DESC_SIZE(sizeof(struct qdf_tso_seg_elem_t)); |
phadiman | a1f7982 | 2019-02-15 15:02:37 +0530 | [diff] [blame] | 341 | if (!dp_is_soc_reinit(soc)) |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 342 | qdf_mem_multi_pages_alloc(soc->osdev, |
| 343 | &tso_desc_pool->desc_pages, |
| 344 | desc_size, |
| 345 | num_elem, 0, true); |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 346 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 347 | if (!tso_desc_pool->desc_pages.num_pages) { |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 348 | QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR, |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 349 | FL("Alloc Failed %pK pool_id %d"), |
| 350 | soc, pool_id); |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 351 | return QDF_STATUS_E_NOMEM; |
| 352 | } |
| 353 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 354 | tso_desc_pool->freelist = (struct qdf_tso_seg_elem_t *) |
| 355 | *tso_desc_pool->desc_pages.cacheable_pages; |
| 356 | tso_desc_pool->num_free = num_elem; |
| 357 | if (qdf_mem_multi_page_link(soc->osdev, |
| 358 | &tso_desc_pool->desc_pages, |
| 359 | desc_size, |
| 360 | num_elem, true)) { |
| 361 | QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| 362 | "invalid tso desc allocation - overflow num link"); |
| 363 | goto free_tso_desc; |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 364 | } |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 365 | TSO_DEBUG("Number of free descriptors: %u\n", tso_desc_pool->num_free); |
| 366 | tso_desc_pool->pool_size = num_elem; |
| 367 | qdf_spinlock_create(&tso_desc_pool->lock); |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 368 | |
| 369 | return QDF_STATUS_SUCCESS; |
| 370 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 371 | free_tso_desc: |
| 372 | qdf_mem_multi_pages_free(soc->osdev, |
| 373 | &tso_desc_pool->desc_pages, 0, true); |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 374 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 375 | return QDF_STATUS_E_FAULT; |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 376 | } |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 377 | |
| 378 | /** |
| 379 | * dp_tx_tso_desc_pool_free() - free tx tso descriptor pool |
| 380 | * @soc: Handle to DP SoC structure |
| 381 | * @pool_id: extension descriptor pool id |
| 382 | * |
| 383 | * Return: NONE |
| 384 | */ |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 385 | void dp_tx_tso_desc_pool_free(struct dp_soc *soc, uint8_t pool_id) |
| 386 | { |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 387 | struct dp_tx_tso_seg_pool_s *tso_desc_pool; |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 388 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 389 | tso_desc_pool = &soc->tx_tso_desc[pool_id]; |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 390 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 391 | qdf_spin_lock_bh(&tso_desc_pool->lock); |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 392 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 393 | qdf_mem_multi_pages_free(soc->osdev, |
| 394 | &tso_desc_pool->desc_pages, 0, true); |
| 395 | tso_desc_pool->freelist = NULL; |
| 396 | tso_desc_pool->num_free = 0; |
| 397 | tso_desc_pool->pool_size = 0; |
| 398 | qdf_spin_unlock_bh(&tso_desc_pool->lock); |
| 399 | qdf_spinlock_destroy(&tso_desc_pool->lock); |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 400 | return; |
| 401 | } |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 402 | /** |
| 403 | * dp_tx_tso_num_seg_pool_alloc() - Allocate descriptors that tracks the |
| 404 | * fragments in each tso segment |
| 405 | * |
| 406 | * @soc: handle to dp soc structure |
| 407 | * @pool_id: descriptor pool id |
| 408 | * @num_elem: total number of descriptors to be allocated |
| 409 | */ |
| 410 | QDF_STATUS dp_tx_tso_num_seg_pool_alloc(struct dp_soc *soc, uint8_t pool_id, |
| 411 | uint16_t num_elem) |
| 412 | { |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 413 | struct dp_tx_tso_num_seg_pool_s *tso_num_seg_pool; |
| 414 | uint32_t desc_size; |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 415 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 416 | tso_num_seg_pool = &soc->tx_tso_num_seg[pool_id]; |
| 417 | tso_num_seg_pool->num_free = 0; |
| 418 | desc_size = DP_TX_DESC_SIZE(sizeof(struct qdf_tso_num_seg_elem_t)); |
phadiman | a1f7982 | 2019-02-15 15:02:37 +0530 | [diff] [blame] | 419 | if (!dp_is_soc_reinit(soc)) |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 420 | qdf_mem_multi_pages_alloc(soc->osdev, |
| 421 | &tso_num_seg_pool->desc_pages, |
| 422 | desc_size, |
| 423 | num_elem, 0, true); |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 424 | if (!tso_num_seg_pool->desc_pages.num_pages) { |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 425 | QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR, |
Anish Nataraj | e9d4c3b | 2018-11-24 22:24:56 +0530 | [diff] [blame] | 426 | FL("Alloc Failed %pK pool_id %d"), |
| 427 | soc, pool_id); |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 428 | return QDF_STATUS_E_NOMEM; |
| 429 | } |
| 430 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 431 | if (qdf_mem_multi_page_link(soc->osdev, |
| 432 | &tso_num_seg_pool->desc_pages, |
| 433 | desc_size, |
| 434 | num_elem, true)) { |
| 435 | QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| 436 | "invalid tso desc allocation - overflow num link"); |
| 437 | goto fail; |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 438 | } |
| 439 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 440 | tso_num_seg_pool->freelist = (struct qdf_tso_num_seg_elem_t *) |
| 441 | *tso_num_seg_pool->desc_pages.cacheable_pages; |
| 442 | tso_num_seg_pool->num_free = num_elem; |
| 443 | tso_num_seg_pool->num_seg_pool_size = num_elem; |
| 444 | |
| 445 | qdf_spinlock_create(&tso_num_seg_pool->lock); |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 446 | |
| 447 | return QDF_STATUS_SUCCESS; |
| 448 | |
| 449 | fail: |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 450 | qdf_mem_multi_pages_free(soc->osdev, |
| 451 | &tso_num_seg_pool->desc_pages, 0, true); |
| 452 | |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 453 | return QDF_STATUS_E_NOMEM; |
| 454 | } |
| 455 | |
| 456 | /** |
| 457 | * dp_tx_tso_num_seg_pool_free() - free pool of descriptors that tracks |
| 458 | * the fragments in tso segment |
| 459 | * |
| 460 | * |
| 461 | * @soc: handle to dp soc structure |
| 462 | * @pool_id: descriptor pool_id |
| 463 | */ |
| 464 | void dp_tx_tso_num_seg_pool_free(struct dp_soc *soc, uint8_t pool_id) |
| 465 | { |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 466 | struct dp_tx_tso_num_seg_pool_s *tso_num_seg_pool; |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 467 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 468 | tso_num_seg_pool = &soc->tx_tso_num_seg[pool_id]; |
| 469 | qdf_spin_lock_bh(&tso_num_seg_pool->lock); |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 470 | |
Kiran Venkatappa | 08bf93b | 2018-08-06 22:08:36 +0530 | [diff] [blame] | 471 | qdf_mem_multi_pages_free(soc->osdev, |
| 472 | &tso_num_seg_pool->desc_pages, 0, true); |
| 473 | tso_num_seg_pool->freelist = NULL; |
| 474 | tso_num_seg_pool->num_free = 0; |
| 475 | tso_num_seg_pool->num_seg_pool_size = 0; |
| 476 | qdf_spin_unlock_bh(&tso_num_seg_pool->lock); |
| 477 | qdf_spinlock_destroy(&tso_num_seg_pool->lock); |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 478 | return; |
| 479 | } |
| 480 | |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 481 | #else |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 482 | QDF_STATUS dp_tx_tso_desc_pool_alloc(struct dp_soc *soc, uint8_t pool_id, |
| 483 | uint16_t num_elem) |
| 484 | { |
| 485 | return QDF_STATUS_SUCCESS; |
| 486 | } |
| 487 | |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 488 | void dp_tx_tso_desc_pool_free(struct dp_soc *soc, uint8_t pool_id) |
| 489 | { |
| 490 | return; |
| 491 | } |
Venkata Sharath Chandra Manchala | 35503cc | 2017-04-06 15:30:54 -0700 | [diff] [blame] | 492 | |
| 493 | QDF_STATUS dp_tx_tso_num_seg_pool_alloc(struct dp_soc *soc, uint8_t pool_id, |
| 494 | uint16_t num_elem) |
| 495 | { |
| 496 | return QDF_STATUS_SUCCESS; |
| 497 | } |
| 498 | |
| 499 | void dp_tx_tso_num_seg_pool_free(struct dp_soc *soc, uint8_t pool_id) |
| 500 | { |
| 501 | return; |
| 502 | } |
Ishank Jain | 5122f8f | 2017-03-15 22:22:47 +0530 | [diff] [blame] | 503 | #endif |