developer | 617abbd | 2024-04-23 14:50:01 +0800 | [diff] [blame^] | 1 | From 7883011e4646c3c69b1f181d3a7de98e811c68fb Mon Sep 17 00:00:00 2001 |
| 2 | From: Bo Jiao <Bo.Jiao@mediatek.com> |
| 3 | Date: Mon, 6 Feb 2023 19:49:22 +0800 |
| 4 | Subject: [PATCH 057/116] mtk: wifi: mt76: revert page_poll for kernel 5.4 |
| 5 | |
| 6 | This reverts commit e8c10835cf062c577ddf426913788c39d30b4bd7. |
| 7 | |
| 8 | Change-Id: I4e5764fc545087f691fb4c2f43e7a9cefd1e1657 |
| 9 | --- |
| 10 | dma.c | 75 ++++++++++++++++++++++++++------------------------- |
| 11 | mac80211.c | 56 -------------------------------------- |
| 12 | mt76.h | 22 +-------------- |
| 13 | mt7915/main.c | 26 +++++++----------- |
| 14 | usb.c | 43 ++++++++++++++--------------- |
| 15 | wed.c | 50 ++++++++++++++++++++++------------ |
| 16 | 6 files changed, 104 insertions(+), 168 deletions(-) |
| 17 | |
| 18 | diff --git a/dma.c b/dma.c |
| 19 | index 66c000ef0..33a84f5fa 100644 |
| 20 | --- a/dma.c |
| 21 | +++ b/dma.c |
| 22 | @@ -178,7 +178,7 @@ mt76_free_pending_rxwi(struct mt76_dev *dev) |
| 23 | local_bh_disable(); |
| 24 | while ((t = __mt76_get_rxwi(dev)) != NULL) { |
| 25 | if (t->ptr) |
| 26 | - mt76_put_page_pool_buf(t->ptr, false); |
| 27 | + skb_free_frag(t->ptr); |
| 28 | kfree(t); |
| 29 | } |
| 30 | local_bh_enable(); |
| 31 | @@ -450,9 +450,9 @@ mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx, |
| 32 | if (!t) |
| 33 | return NULL; |
| 34 | |
| 35 | - dma_sync_single_for_cpu(dev->dma_dev, t->dma_addr, |
| 36 | - SKB_WITH_OVERHEAD(q->buf_size), |
| 37 | - page_pool_get_dma_dir(q->page_pool)); |
| 38 | + dma_unmap_single(dev->dma_dev, t->dma_addr, |
| 39 | + SKB_WITH_OVERHEAD(q->buf_size), |
| 40 | + DMA_FROM_DEVICE); |
| 41 | |
| 42 | buf = t->ptr; |
| 43 | t->dma_addr = 0; |
| 44 | @@ -462,9 +462,9 @@ mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx, |
| 45 | if (drop) |
| 46 | *drop |= !!(buf1 & MT_DMA_CTL_WO_DROP); |
| 47 | } else { |
| 48 | - dma_sync_single_for_cpu(dev->dma_dev, e->dma_addr[0], |
| 49 | - SKB_WITH_OVERHEAD(q->buf_size), |
| 50 | - page_pool_get_dma_dir(q->page_pool)); |
| 51 | + dma_unmap_single(dev->dma_dev, e->dma_addr[0], |
| 52 | + SKB_WITH_OVERHEAD(q->buf_size), |
| 53 | + DMA_FROM_DEVICE); |
| 54 | } |
| 55 | |
| 56 | done: |
| 57 | @@ -638,7 +638,8 @@ int mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q, |
| 58 | bool allow_direct) |
| 59 | { |
| 60 | int len = SKB_WITH_OVERHEAD(q->buf_size); |
| 61 | - int frames = 0; |
| 62 | + int frames = 0, offset = q->buf_offset; |
| 63 | + dma_addr_t addr; |
| 64 | |
| 65 | if (!q->ndesc) |
| 66 | return 0; |
| 67 | @@ -647,28 +648,29 @@ int mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q, |
| 68 | |
| 69 | while (q->queued < q->ndesc - 1) { |
| 70 | struct mt76_queue_buf qbuf = {}; |
| 71 | - enum dma_data_direction dir; |
| 72 | - dma_addr_t addr; |
| 73 | - int offset; |
| 74 | void *buf = NULL; |
| 75 | |
| 76 | if (mt76_queue_is_wed_rro_ind(q)) |
| 77 | goto done; |
| 78 | |
| 79 | - buf = mt76_get_page_pool_buf(q, &offset, q->buf_size); |
| 80 | + buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC); |
| 81 | if (!buf) |
| 82 | break; |
| 83 | |
| 84 | - addr = page_pool_get_dma_addr(virt_to_head_page(buf)) + offset; |
| 85 | - dir = page_pool_get_dma_dir(q->page_pool); |
| 86 | - dma_sync_single_for_device(dev->dma_dev, addr, len, dir); |
| 87 | + addr = dma_map_single(dev->dma_dev, buf, len, DMA_FROM_DEVICE); |
| 88 | + if (unlikely(dma_mapping_error(dev->dma_dev, addr))) { |
| 89 | + skb_free_frag(buf); |
| 90 | + break; |
| 91 | + } |
| 92 | |
| 93 | - qbuf.addr = addr + q->buf_offset; |
| 94 | + qbuf.addr = addr + offset; |
| 95 | done: |
| 96 | - qbuf.len = len - q->buf_offset; |
| 97 | + qbuf.len = len - offset; |
| 98 | qbuf.skip_unmap = false; |
| 99 | if (mt76_dma_add_rx_buf(dev, q, &qbuf, buf) < 0) { |
| 100 | - mt76_put_page_pool_buf(buf, allow_direct); |
| 101 | + dma_unmap_single(dev->dma_dev, addr, len, |
| 102 | + DMA_FROM_DEVICE); |
| 103 | + skb_free_frag(buf); |
| 104 | break; |
| 105 | } |
| 106 | frames++; |
| 107 | @@ -722,10 +724,6 @@ mt76_dma_alloc_queue(struct mt76_dev *dev, struct mt76_queue *q, |
| 108 | if (!q->entry) |
| 109 | return -ENOMEM; |
| 110 | |
| 111 | - ret = mt76_create_page_pool(dev, q); |
| 112 | - if (ret) |
| 113 | - return ret; |
| 114 | - |
| 115 | ret = mt76_wed_dma_setup(dev, q, false); |
| 116 | if (ret) |
| 117 | return ret; |
| 118 | @@ -744,6 +742,7 @@ mt76_dma_alloc_queue(struct mt76_dev *dev, struct mt76_queue *q, |
| 119 | static void |
| 120 | mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q) |
| 121 | { |
| 122 | + struct page *page; |
| 123 | void *buf; |
| 124 | bool more; |
| 125 | |
| 126 | @@ -759,7 +758,7 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q) |
| 127 | break; |
| 128 | |
| 129 | if (!mt76_queue_is_wed_rro(q)) |
| 130 | - mt76_put_page_pool_buf(buf, false); |
| 131 | + skb_free_frag(buf); |
| 132 | } while (1); |
| 133 | |
| 134 | spin_lock_bh(&q->lock); |
| 135 | @@ -769,6 +768,16 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q) |
| 136 | } |
| 137 | |
| 138 | spin_unlock_bh(&q->lock); |
| 139 | + |
| 140 | + if (mt76_queue_is_wed_rx(q)) |
| 141 | + return; |
| 142 | + |
| 143 | + if (!q->rx_page.va) |
| 144 | + return; |
| 145 | + |
| 146 | + page = virt_to_page(q->rx_page.va); |
| 147 | + __page_frag_cache_drain(page, q->rx_page.pagecnt_bias); |
| 148 | + memset(&q->rx_page, 0, sizeof(q->rx_page)); |
| 149 | } |
| 150 | |
| 151 | static void |
| 152 | @@ -791,15 +800,10 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid) |
| 153 | /* reset WED rx queues */ |
| 154 | mt76_wed_dma_setup(dev, q, true); |
| 155 | |
| 156 | - if (mt76_queue_is_wed_tx_free(q)) |
| 157 | - return; |
| 158 | - |
| 159 | - if (mtk_wed_device_active(&dev->mmio.wed) && |
| 160 | - mt76_queue_is_wed_rro(q)) |
| 161 | - return; |
| 162 | - |
| 163 | - mt76_dma_sync_idx(dev, q); |
| 164 | - mt76_dma_rx_fill(dev, q, false); |
| 165 | + if (!mt76_queue_is_wed_tx_free(q)) { |
| 166 | + mt76_dma_sync_idx(dev, q); |
| 167 | + mt76_dma_rx_fill(dev, q, false); |
| 168 | + } |
| 169 | } |
| 170 | |
| 171 | static void |
| 172 | @@ -816,7 +820,7 @@ mt76_add_fragment(struct mt76_dev *dev, struct mt76_queue *q, void *data, |
| 173 | |
| 174 | skb_add_rx_frag(skb, nr_frags, page, offset, len, q->buf_size); |
| 175 | } else { |
| 176 | - mt76_put_page_pool_buf(data, allow_direct); |
| 177 | + skb_free_frag(data); |
| 178 | } |
| 179 | |
| 180 | if (more) |
| 181 | @@ -891,7 +895,6 @@ mt76_dma_rx_process(struct mt76_dev *dev, struct mt76_queue *q, int budget) |
| 182 | goto free_frag; |
| 183 | |
| 184 | skb_reserve(skb, q->buf_offset); |
| 185 | - skb_mark_for_recycle(skb); |
| 186 | |
| 187 | *(u32 *)skb->cb = info; |
| 188 | |
| 189 | @@ -907,7 +910,7 @@ mt76_dma_rx_process(struct mt76_dev *dev, struct mt76_queue *q, int budget) |
| 190 | continue; |
| 191 | |
| 192 | free_frag: |
| 193 | - mt76_put_page_pool_buf(data, allow_direct); |
| 194 | + skb_free_frag(data); |
| 195 | } |
| 196 | |
| 197 | mt76_dma_rx_fill(dev, q, true); |
| 198 | @@ -1010,8 +1013,6 @@ void mt76_dma_cleanup(struct mt76_dev *dev) |
| 199 | |
| 200 | netif_napi_del(&dev->napi[i]); |
| 201 | mt76_dma_rx_cleanup(dev, q); |
| 202 | - |
| 203 | - page_pool_destroy(q->page_pool); |
| 204 | } |
| 205 | |
| 206 | if (mtk_wed_device_active(&dev->mmio.wed)) |
| 207 | diff --git a/mac80211.c b/mac80211.c |
| 208 | index 8091a60e0..f7b9ba6a0 100644 |
| 209 | --- a/mac80211.c |
| 210 | +++ b/mac80211.c |
| 211 | @@ -565,47 +565,6 @@ void mt76_unregister_phy(struct mt76_phy *phy) |
| 212 | } |
| 213 | EXPORT_SYMBOL_GPL(mt76_unregister_phy); |
| 214 | |
| 215 | -int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q) |
| 216 | -{ |
| 217 | - struct page_pool_params pp_params = { |
| 218 | - .order = 0, |
| 219 | - .flags = PP_FLAG_PAGE_FRAG, |
| 220 | - .nid = NUMA_NO_NODE, |
| 221 | - .dev = dev->dma_dev, |
| 222 | - }; |
| 223 | - int idx = q - dev->q_rx; |
| 224 | - |
| 225 | - switch (idx) { |
| 226 | - case MT_RXQ_MAIN: |
| 227 | - case MT_RXQ_BAND1: |
| 228 | - case MT_RXQ_BAND2: |
| 229 | - pp_params.pool_size = 256; |
| 230 | - break; |
| 231 | - default: |
| 232 | - pp_params.pool_size = 16; |
| 233 | - break; |
| 234 | - } |
| 235 | - |
| 236 | - if (mt76_is_mmio(dev)) { |
| 237 | - /* rely on page_pool for DMA mapping */ |
| 238 | - pp_params.flags |= PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV; |
| 239 | - pp_params.dma_dir = DMA_FROM_DEVICE; |
| 240 | - pp_params.max_len = PAGE_SIZE; |
| 241 | - pp_params.offset = 0; |
| 242 | - } |
| 243 | - |
| 244 | - q->page_pool = page_pool_create(&pp_params); |
| 245 | - if (IS_ERR(q->page_pool)) { |
| 246 | - int err = PTR_ERR(q->page_pool); |
| 247 | - |
| 248 | - q->page_pool = NULL; |
| 249 | - return err; |
| 250 | - } |
| 251 | - |
| 252 | - return 0; |
| 253 | -} |
| 254 | -EXPORT_SYMBOL_GPL(mt76_create_page_pool); |
| 255 | - |
| 256 | struct mt76_dev * |
| 257 | mt76_alloc_device(struct device *pdev, unsigned int size, |
| 258 | const struct ieee80211_ops *ops, |
| 259 | @@ -1818,21 +1777,6 @@ void mt76_ethtool_worker(struct mt76_ethtool_worker_info *wi, |
| 260 | } |
| 261 | EXPORT_SYMBOL_GPL(mt76_ethtool_worker); |
| 262 | |
| 263 | -void mt76_ethtool_page_pool_stats(struct mt76_dev *dev, u64 *data, int *index) |
| 264 | -{ |
| 265 | -#ifdef CONFIG_PAGE_POOL_STATS |
| 266 | - struct page_pool_stats stats = {}; |
| 267 | - int i; |
| 268 | - |
| 269 | - mt76_for_each_q_rx(dev, i) |
| 270 | - page_pool_get_stats(dev->q_rx[i].page_pool, &stats); |
| 271 | - |
| 272 | - page_pool_ethtool_stats_get(data, &stats); |
| 273 | - *index += page_pool_ethtool_stats_get_count(); |
| 274 | -#endif |
| 275 | -} |
| 276 | -EXPORT_SYMBOL_GPL(mt76_ethtool_page_pool_stats); |
| 277 | - |
| 278 | enum mt76_dfs_state mt76_phy_dfs_state(struct mt76_phy *phy) |
| 279 | { |
| 280 | struct ieee80211_hw *hw = phy->hw; |
| 281 | diff --git a/mt76.h b/mt76.h |
| 282 | index 11cbb2d28..e21c6537f 100644 |
| 283 | --- a/mt76.h |
| 284 | +++ b/mt76.h |
| 285 | @@ -251,7 +251,7 @@ struct mt76_queue { |
| 286 | |
| 287 | dma_addr_t desc_dma; |
| 288 | struct sk_buff *rx_head; |
| 289 | - struct page_pool *page_pool; |
| 290 | + struct page_frag_cache rx_page; |
| 291 | }; |
| 292 | |
| 293 | struct mt76_mcu_ops { |
| 294 | @@ -1606,7 +1606,6 @@ mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len, |
| 295 | return usb_bulk_msg(udev, pipe, data, len, actual_len, timeout); |
| 296 | } |
| 297 | |
| 298 | -void mt76_ethtool_page_pool_stats(struct mt76_dev *dev, u64 *data, int *index); |
| 299 | void mt76_ethtool_worker(struct mt76_ethtool_worker_info *wi, |
| 300 | struct mt76_sta_stats *stats, bool eht); |
| 301 | int mt76_skb_adjust_pad(struct sk_buff *skb, int pad); |
| 302 | @@ -1752,25 +1751,6 @@ void __mt76_set_tx_blocked(struct mt76_dev *dev, bool blocked); |
| 303 | struct mt76_txwi_cache *mt76_rx_token_release(struct mt76_dev *dev, int token); |
| 304 | int mt76_rx_token_consume(struct mt76_dev *dev, void *ptr, |
| 305 | struct mt76_txwi_cache *r, dma_addr_t phys); |
| 306 | -int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q); |
| 307 | -static inline void mt76_put_page_pool_buf(void *buf, bool allow_direct) |
| 308 | -{ |
| 309 | - struct page *page = virt_to_head_page(buf); |
| 310 | - |
| 311 | - page_pool_put_full_page(page->pp, page, allow_direct); |
| 312 | -} |
| 313 | - |
| 314 | -static inline void * |
| 315 | -mt76_get_page_pool_buf(struct mt76_queue *q, u32 *offset, u32 size) |
| 316 | -{ |
| 317 | - struct page *page; |
| 318 | - |
| 319 | - page = page_pool_dev_alloc_frag(q->page_pool, offset, size); |
| 320 | - if (!page) |
| 321 | - return NULL; |
| 322 | - |
| 323 | - return page_address(page) + *offset; |
| 324 | -} |
| 325 | |
| 326 | static inline void mt76_set_tx_blocked(struct mt76_dev *dev, bool blocked) |
| 327 | { |
| 328 | diff --git a/mt7915/main.c b/mt7915/main.c |
| 329 | index b16a63366..ad91fc3c8 100644 |
| 330 | --- a/mt7915/main.c |
| 331 | +++ b/mt7915/main.c |
| 332 | @@ -1402,22 +1402,19 @@ void mt7915_get_et_strings(struct ieee80211_hw *hw, |
| 333 | struct ieee80211_vif *vif, |
| 334 | u32 sset, u8 *data) |
| 335 | { |
| 336 | - if (sset != ETH_SS_STATS) |
| 337 | - return; |
| 338 | - |
| 339 | - memcpy(data, mt7915_gstrings_stats, sizeof(mt7915_gstrings_stats)); |
| 340 | - data += sizeof(mt7915_gstrings_stats); |
| 341 | - page_pool_ethtool_stats_get_strings(data); |
| 342 | + if (sset == ETH_SS_STATS) |
| 343 | + memcpy(data, mt7915_gstrings_stats, |
| 344 | + sizeof(mt7915_gstrings_stats)); |
| 345 | } |
| 346 | |
| 347 | static |
| 348 | int mt7915_get_et_sset_count(struct ieee80211_hw *hw, |
| 349 | struct ieee80211_vif *vif, int sset) |
| 350 | { |
| 351 | - if (sset != ETH_SS_STATS) |
| 352 | - return 0; |
| 353 | + if (sset == ETH_SS_STATS) |
| 354 | + return MT7915_SSTATS_LEN; |
| 355 | |
| 356 | - return MT7915_SSTATS_LEN + page_pool_ethtool_stats_get_count(); |
| 357 | + return 0; |
| 358 | } |
| 359 | |
| 360 | static void mt7915_ethtool_worker(void *wi_data, struct ieee80211_sta *sta) |
| 361 | @@ -1445,7 +1442,7 @@ void mt7915_get_et_stats(struct ieee80211_hw *hw, |
| 362 | .idx = mvif->mt76.idx, |
| 363 | }; |
| 364 | /* See mt7915_ampdu_stat_read_phy, etc */ |
| 365 | - int i, ei = 0, stats_size; |
| 366 | + int i, ei = 0; |
| 367 | |
| 368 | mutex_lock(&dev->mt76.mutex); |
| 369 | |
| 370 | @@ -1557,12 +1554,9 @@ void mt7915_get_et_stats(struct ieee80211_hw *hw, |
| 371 | return; |
| 372 | |
| 373 | ei += wi.worker_stat_count; |
| 374 | - |
| 375 | - mt76_ethtool_page_pool_stats(&dev->mt76, &data[ei], &ei); |
| 376 | - |
| 377 | - stats_size = MT7915_SSTATS_LEN + page_pool_ethtool_stats_get_count(); |
| 378 | - if (ei != stats_size) |
| 379 | - dev_err(dev->mt76.dev, "ei: %d size: %d", ei, stats_size); |
| 380 | + if (ei != MT7915_SSTATS_LEN) |
| 381 | + dev_err(dev->mt76.dev, "ei: %d MT7915_SSTATS_LEN: %d", |
| 382 | + ei, (int)MT7915_SSTATS_LEN); |
| 383 | } |
| 384 | |
| 385 | static void |
| 386 | diff --git a/usb.c b/usb.c |
| 387 | index dc690d1cd..058f2d124 100644 |
| 388 | --- a/usb.c |
| 389 | +++ b/usb.c |
| 390 | @@ -319,27 +319,29 @@ mt76u_set_endpoints(struct usb_interface *intf, |
| 391 | |
| 392 | static int |
| 393 | mt76u_fill_rx_sg(struct mt76_dev *dev, struct mt76_queue *q, struct urb *urb, |
| 394 | - int nsgs) |
| 395 | + int nsgs, gfp_t gfp) |
| 396 | { |
| 397 | int i; |
| 398 | |
| 399 | for (i = 0; i < nsgs; i++) { |
| 400 | + struct page *page; |
| 401 | void *data; |
| 402 | int offset; |
| 403 | |
| 404 | - data = mt76_get_page_pool_buf(q, &offset, q->buf_size); |
| 405 | + data = page_frag_alloc(&q->rx_page, q->buf_size, gfp); |
| 406 | if (!data) |
| 407 | break; |
| 408 | |
| 409 | - sg_set_page(&urb->sg[i], virt_to_head_page(data), q->buf_size, |
| 410 | - offset); |
| 411 | + page = virt_to_head_page(data); |
| 412 | + offset = data - page_address(page); |
| 413 | + sg_set_page(&urb->sg[i], page, q->buf_size, offset); |
| 414 | } |
| 415 | |
| 416 | if (i < nsgs) { |
| 417 | int j; |
| 418 | |
| 419 | for (j = nsgs; j < urb->num_sgs; j++) |
| 420 | - mt76_put_page_pool_buf(sg_virt(&urb->sg[j]), false); |
| 421 | + skb_free_frag(sg_virt(&urb->sg[j])); |
| 422 | urb->num_sgs = i; |
| 423 | } |
| 424 | |
| 425 | @@ -352,16 +354,15 @@ mt76u_fill_rx_sg(struct mt76_dev *dev, struct mt76_queue *q, struct urb *urb, |
| 426 | |
| 427 | static int |
| 428 | mt76u_refill_rx(struct mt76_dev *dev, struct mt76_queue *q, |
| 429 | - struct urb *urb, int nsgs) |
| 430 | + struct urb *urb, int nsgs, gfp_t gfp) |
| 431 | { |
| 432 | enum mt76_rxq_id qid = q - &dev->q_rx[MT_RXQ_MAIN]; |
| 433 | - int offset; |
| 434 | |
| 435 | if (qid == MT_RXQ_MAIN && dev->usb.sg_en) |
| 436 | - return mt76u_fill_rx_sg(dev, q, urb, nsgs); |
| 437 | + return mt76u_fill_rx_sg(dev, q, urb, nsgs, gfp); |
| 438 | |
| 439 | urb->transfer_buffer_length = q->buf_size; |
| 440 | - urb->transfer_buffer = mt76_get_page_pool_buf(q, &offset, q->buf_size); |
| 441 | + urb->transfer_buffer = page_frag_alloc(&q->rx_page, q->buf_size, gfp); |
| 442 | |
| 443 | return urb->transfer_buffer ? 0 : -ENOMEM; |
| 444 | } |
| 445 | @@ -399,7 +400,7 @@ mt76u_rx_urb_alloc(struct mt76_dev *dev, struct mt76_queue *q, |
| 446 | if (err) |
| 447 | return err; |
| 448 | |
| 449 | - return mt76u_refill_rx(dev, q, e->urb, sg_size); |
| 450 | + return mt76u_refill_rx(dev, q, e->urb, sg_size, GFP_KERNEL); |
| 451 | } |
| 452 | |
| 453 | static void mt76u_urb_free(struct urb *urb) |
| 454 | @@ -407,10 +408,10 @@ static void mt76u_urb_free(struct urb *urb) |
| 455 | int i; |
| 456 | |
| 457 | for (i = 0; i < urb->num_sgs; i++) |
| 458 | - mt76_put_page_pool_buf(sg_virt(&urb->sg[i]), false); |
| 459 | + skb_free_frag(sg_virt(&urb->sg[i])); |
| 460 | |
| 461 | if (urb->transfer_buffer) |
| 462 | - mt76_put_page_pool_buf(urb->transfer_buffer, false); |
| 463 | + skb_free_frag(urb->transfer_buffer); |
| 464 | |
| 465 | usb_free_urb(urb); |
| 466 | } |
| 467 | @@ -546,8 +547,6 @@ mt76u_process_rx_entry(struct mt76_dev *dev, struct urb *urb, |
| 468 | len -= data_len; |
| 469 | nsgs++; |
| 470 | } |
| 471 | - |
| 472 | - skb_mark_for_recycle(skb); |
| 473 | dev->drv->rx_skb(dev, MT_RXQ_MAIN, skb, NULL); |
| 474 | |
| 475 | return nsgs; |
| 476 | @@ -613,7 +612,7 @@ mt76u_process_rx_queue(struct mt76_dev *dev, struct mt76_queue *q) |
| 477 | |
| 478 | count = mt76u_process_rx_entry(dev, urb, q->buf_size); |
| 479 | if (count > 0) { |
| 480 | - err = mt76u_refill_rx(dev, q, urb, count); |
| 481 | + err = mt76u_refill_rx(dev, q, urb, count, GFP_ATOMIC); |
| 482 | if (err < 0) |
| 483 | break; |
| 484 | } |
| 485 | @@ -664,10 +663,6 @@ mt76u_alloc_rx_queue(struct mt76_dev *dev, enum mt76_rxq_id qid) |
| 486 | struct mt76_queue *q = &dev->q_rx[qid]; |
| 487 | int i, err; |
| 488 | |
| 489 | - err = mt76_create_page_pool(dev, q); |
| 490 | - if (err) |
| 491 | - return err; |
| 492 | - |
| 493 | spin_lock_init(&q->lock); |
| 494 | q->entry = devm_kcalloc(dev->dev, |
| 495 | MT_NUM_RX_ENTRIES, sizeof(*q->entry), |
| 496 | @@ -696,6 +691,7 @@ EXPORT_SYMBOL_GPL(mt76u_alloc_mcu_queue); |
| 497 | static void |
| 498 | mt76u_free_rx_queue(struct mt76_dev *dev, struct mt76_queue *q) |
| 499 | { |
| 500 | + struct page *page; |
| 501 | int i; |
| 502 | |
| 503 | for (i = 0; i < q->ndesc; i++) { |
| 504 | @@ -705,8 +701,13 @@ mt76u_free_rx_queue(struct mt76_dev *dev, struct mt76_queue *q) |
| 505 | mt76u_urb_free(q->entry[i].urb); |
| 506 | q->entry[i].urb = NULL; |
| 507 | } |
| 508 | - page_pool_destroy(q->page_pool); |
| 509 | - q->page_pool = NULL; |
| 510 | + |
| 511 | + if (!q->rx_page.va) |
| 512 | + return; |
| 513 | + |
| 514 | + page = virt_to_page(q->rx_page.va); |
| 515 | + __page_frag_cache_drain(page, q->rx_page.pagecnt_bias); |
| 516 | + memset(&q->rx_page, 0, sizeof(q->rx_page)); |
| 517 | } |
| 518 | |
| 519 | static void mt76u_free_rx(struct mt76_dev *dev) |
| 520 | diff --git a/wed.c b/wed.c |
| 521 | index f89e45375..8eca4d818 100644 |
| 522 | --- a/wed.c |
| 523 | +++ b/wed.c |
| 524 | @@ -9,8 +9,12 @@ |
| 525 | void mt76_wed_release_rx_buf(struct mtk_wed_device *wed) |
| 526 | { |
| 527 | struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); |
| 528 | + u32 length; |
| 529 | int i; |
| 530 | |
| 531 | + length = SKB_DATA_ALIGN(NET_SKB_PAD + wed->wlan.rx_size + |
| 532 | + sizeof(struct skb_shared_info)); |
| 533 | + |
| 534 | for (i = 0; i < dev->rx_token_size; i++) { |
| 535 | struct mt76_txwi_cache *t; |
| 536 | |
| 537 | @@ -18,7 +22,9 @@ void mt76_wed_release_rx_buf(struct mtk_wed_device *wed) |
| 538 | if (!t || !t->ptr) |
| 539 | continue; |
| 540 | |
| 541 | - mt76_put_page_pool_buf(t->ptr, false); |
| 542 | + dma_unmap_single(dev->dma_dev, t->dma_addr, |
| 543 | + wed->wlan.rx_size, DMA_FROM_DEVICE); |
| 544 | + __free_pages(virt_to_page(t->ptr), get_order(length)); |
| 545 | t->ptr = NULL; |
| 546 | |
| 547 | mt76_put_rxwi(dev, t); |
| 548 | @@ -33,33 +39,45 @@ u32 mt76_wed_init_rx_buf(struct mtk_wed_device *wed, int size) |
| 549 | { |
| 550 | struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); |
| 551 | struct mtk_wed_bm_desc *desc = wed->rx_buf_ring.desc; |
| 552 | - struct mt76_queue *q = &dev->q_rx[MT_RXQ_MAIN]; |
| 553 | - int i, len = SKB_WITH_OVERHEAD(q->buf_size); |
| 554 | - struct mt76_txwi_cache *t = NULL; |
| 555 | + u32 length; |
| 556 | + int i; |
| 557 | + |
| 558 | + length = SKB_DATA_ALIGN(NET_SKB_PAD + wed->wlan.rx_size + |
| 559 | + sizeof(struct skb_shared_info)); |
| 560 | |
| 561 | for (i = 0; i < size; i++) { |
| 562 | - enum dma_data_direction dir; |
| 563 | + struct mt76_txwi_cache *t = mt76_get_rxwi(dev); |
| 564 | dma_addr_t addr; |
| 565 | - u32 offset; |
| 566 | + struct page *page; |
| 567 | int token; |
| 568 | - void *buf; |
| 569 | + void *ptr; |
| 570 | |
| 571 | - t = mt76_get_rxwi(dev); |
| 572 | if (!t) |
| 573 | goto unmap; |
| 574 | |
| 575 | - buf = mt76_get_page_pool_buf(q, &offset, q->buf_size); |
| 576 | - if (!buf) |
| 577 | + page = __dev_alloc_pages(GFP_KERNEL, get_order(length)); |
| 578 | + if (!page) { |
| 579 | + mt76_put_rxwi(dev, t); |
| 580 | goto unmap; |
| 581 | + } |
| 582 | |
| 583 | - addr = page_pool_get_dma_addr(virt_to_head_page(buf)) + offset; |
| 584 | - dir = page_pool_get_dma_dir(q->page_pool); |
| 585 | - dma_sync_single_for_device(dev->dma_dev, addr, len, dir); |
| 586 | + addr = dma_map_single(dev->dma_dev, ptr, |
| 587 | + wed->wlan.rx_size, |
| 588 | + DMA_TO_DEVICE); |
| 589 | + |
| 590 | + if (unlikely(dma_mapping_error(dev->dev, addr))) { |
| 591 | + skb_free_frag(ptr); |
| 592 | + mt76_put_rxwi(dev, t); |
| 593 | + goto unmap; |
| 594 | + } |
| 595 | |
| 596 | desc->buf0 = cpu_to_le32(addr); |
| 597 | - token = mt76_rx_token_consume(dev, buf, t, addr); |
| 598 | + token = mt76_rx_token_consume(dev, ptr, t, addr); |
| 599 | if (token < 0) { |
| 600 | - mt76_put_page_pool_buf(buf, false); |
| 601 | + dma_unmap_single(dev->dma_dev, addr, |
| 602 | + wed->wlan.rx_size, DMA_TO_DEVICE); |
| 603 | + __free_pages(page, get_order(length)); |
| 604 | + mt76_put_rxwi(dev, t); |
| 605 | goto unmap; |
| 606 | } |
| 607 | |
| 608 | @@ -74,8 +92,6 @@ u32 mt76_wed_init_rx_buf(struct mtk_wed_device *wed, int size) |
| 609 | return 0; |
| 610 | |
| 611 | unmap: |
| 612 | - if (t) |
| 613 | - mt76_put_rxwi(dev, t); |
| 614 | mt76_wed_release_rx_buf(wed); |
| 615 | |
| 616 | return -ENOMEM; |
| 617 | -- |
| 618 | 2.39.2 |
| 619 | |