Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1 | /* Copyright (c) 2014 Broadcom Corporation |
| 2 | * |
| 3 | * Permission to use, copy, modify, and/or distribute this software for any |
| 4 | * purpose with or without fee is hereby granted, provided that the above |
| 5 | * copyright notice and this permission notice appear in all copies. |
| 6 | * |
| 7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 10 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 12 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 13 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 14 | */ |
| 15 | |
| 16 | /******************************************************************************* |
| 17 | * Communicates with the dongle by using dcmd codes. |
| 18 | * For certain dcmd codes, the dongle interprets string data from the host. |
| 19 | ******************************************************************************/ |
| 20 | |
| 21 | #include <linux/types.h> |
| 22 | #include <linux/netdevice.h> |
| 23 | |
| 24 | #include <brcmu_utils.h> |
| 25 | #include <brcmu_wifi.h> |
| 26 | |
Hante Meuleman | 122d3d0 | 2014-10-28 14:56:18 +0100 | [diff] [blame] | 27 | #include "core.h" |
Hante Meuleman | a8e8ed3 | 2014-10-28 14:56:13 +0100 | [diff] [blame] | 28 | #include "debug.h" |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 29 | #include "proto.h" |
| 30 | #include "msgbuf.h" |
| 31 | #include "commonring.h" |
| 32 | #include "flowring.h" |
Hante Meuleman | d14f78b | 2014-10-28 14:56:14 +0100 | [diff] [blame] | 33 | #include "bus.h" |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 34 | #include "tracepoint.h" |
| 35 | |
| 36 | |
| 37 | #define MSGBUF_IOCTL_RESP_TIMEOUT 2000 |
| 38 | |
| 39 | #define MSGBUF_TYPE_GEN_STATUS 0x1 |
| 40 | #define MSGBUF_TYPE_RING_STATUS 0x2 |
| 41 | #define MSGBUF_TYPE_FLOW_RING_CREATE 0x3 |
| 42 | #define MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT 0x4 |
| 43 | #define MSGBUF_TYPE_FLOW_RING_DELETE 0x5 |
| 44 | #define MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT 0x6 |
| 45 | #define MSGBUF_TYPE_FLOW_RING_FLUSH 0x7 |
| 46 | #define MSGBUF_TYPE_FLOW_RING_FLUSH_CMPLT 0x8 |
| 47 | #define MSGBUF_TYPE_IOCTLPTR_REQ 0x9 |
| 48 | #define MSGBUF_TYPE_IOCTLPTR_REQ_ACK 0xA |
| 49 | #define MSGBUF_TYPE_IOCTLRESP_BUF_POST 0xB |
| 50 | #define MSGBUF_TYPE_IOCTL_CMPLT 0xC |
| 51 | #define MSGBUF_TYPE_EVENT_BUF_POST 0xD |
| 52 | #define MSGBUF_TYPE_WL_EVENT 0xE |
| 53 | #define MSGBUF_TYPE_TX_POST 0xF |
| 54 | #define MSGBUF_TYPE_TX_STATUS 0x10 |
| 55 | #define MSGBUF_TYPE_RXBUF_POST 0x11 |
| 56 | #define MSGBUF_TYPE_RX_CMPLT 0x12 |
| 57 | #define MSGBUF_TYPE_LPBK_DMAXFER 0x13 |
| 58 | #define MSGBUF_TYPE_LPBK_DMAXFER_CMPLT 0x14 |
| 59 | |
| 60 | #define NR_TX_PKTIDS 2048 |
| 61 | #define NR_RX_PKTIDS 1024 |
| 62 | |
| 63 | #define BRCMF_IOCTL_REQ_PKTID 0xFFFE |
| 64 | |
| 65 | #define BRCMF_MSGBUF_MAX_PKT_SIZE 2048 |
| 66 | #define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD 32 |
| 67 | #define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST 8 |
| 68 | #define BRCMF_MSGBUF_MAX_EVENTBUF_POST 8 |
| 69 | |
| 70 | #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3 0x01 |
| 71 | #define BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT 5 |
| 72 | |
| 73 | #define BRCMF_MSGBUF_TX_FLUSH_CNT1 32 |
| 74 | #define BRCMF_MSGBUF_TX_FLUSH_CNT2 96 |
| 75 | |
| 76 | |
| 77 | struct msgbuf_common_hdr { |
| 78 | u8 msgtype; |
| 79 | u8 ifidx; |
| 80 | u8 flags; |
| 81 | u8 rsvd0; |
| 82 | __le32 request_id; |
| 83 | }; |
| 84 | |
| 85 | struct msgbuf_buf_addr { |
| 86 | __le32 low_addr; |
| 87 | __le32 high_addr; |
| 88 | }; |
| 89 | |
| 90 | struct msgbuf_ioctl_req_hdr { |
| 91 | struct msgbuf_common_hdr msg; |
| 92 | __le32 cmd; |
| 93 | __le16 trans_id; |
| 94 | __le16 input_buf_len; |
| 95 | __le16 output_buf_len; |
| 96 | __le16 rsvd0[3]; |
| 97 | struct msgbuf_buf_addr req_buf_addr; |
| 98 | __le32 rsvd1[2]; |
| 99 | }; |
| 100 | |
| 101 | struct msgbuf_tx_msghdr { |
| 102 | struct msgbuf_common_hdr msg; |
| 103 | u8 txhdr[ETH_HLEN]; |
| 104 | u8 flags; |
| 105 | u8 seg_cnt; |
| 106 | struct msgbuf_buf_addr metadata_buf_addr; |
| 107 | struct msgbuf_buf_addr data_buf_addr; |
| 108 | __le16 metadata_buf_len; |
| 109 | __le16 data_len; |
| 110 | __le32 rsvd0; |
| 111 | }; |
| 112 | |
| 113 | struct msgbuf_rx_bufpost { |
| 114 | struct msgbuf_common_hdr msg; |
| 115 | __le16 metadata_buf_len; |
| 116 | __le16 data_buf_len; |
| 117 | __le32 rsvd0; |
| 118 | struct msgbuf_buf_addr metadata_buf_addr; |
| 119 | struct msgbuf_buf_addr data_buf_addr; |
| 120 | }; |
| 121 | |
| 122 | struct msgbuf_rx_ioctl_resp_or_event { |
| 123 | struct msgbuf_common_hdr msg; |
| 124 | __le16 host_buf_len; |
| 125 | __le16 rsvd0[3]; |
| 126 | struct msgbuf_buf_addr host_buf_addr; |
| 127 | __le32 rsvd1[4]; |
| 128 | }; |
| 129 | |
| 130 | struct msgbuf_completion_hdr { |
| 131 | __le16 status; |
| 132 | __le16 flow_ring_id; |
| 133 | }; |
| 134 | |
| 135 | struct msgbuf_rx_event { |
| 136 | struct msgbuf_common_hdr msg; |
| 137 | struct msgbuf_completion_hdr compl_hdr; |
| 138 | __le16 event_data_len; |
| 139 | __le16 seqnum; |
| 140 | __le16 rsvd0[4]; |
| 141 | }; |
| 142 | |
| 143 | struct msgbuf_ioctl_resp_hdr { |
| 144 | struct msgbuf_common_hdr msg; |
| 145 | struct msgbuf_completion_hdr compl_hdr; |
| 146 | __le16 resp_len; |
| 147 | __le16 trans_id; |
| 148 | __le32 cmd; |
| 149 | __le32 rsvd0; |
| 150 | }; |
| 151 | |
| 152 | struct msgbuf_tx_status { |
| 153 | struct msgbuf_common_hdr msg; |
| 154 | struct msgbuf_completion_hdr compl_hdr; |
| 155 | __le16 metadata_len; |
| 156 | __le16 tx_status; |
| 157 | }; |
| 158 | |
| 159 | struct msgbuf_rx_complete { |
| 160 | struct msgbuf_common_hdr msg; |
| 161 | struct msgbuf_completion_hdr compl_hdr; |
| 162 | __le16 metadata_len; |
| 163 | __le16 data_len; |
| 164 | __le16 data_offset; |
| 165 | __le16 flags; |
| 166 | __le32 rx_status_0; |
| 167 | __le32 rx_status_1; |
| 168 | __le32 rsvd0; |
| 169 | }; |
| 170 | |
| 171 | struct msgbuf_tx_flowring_create_req { |
| 172 | struct msgbuf_common_hdr msg; |
| 173 | u8 da[ETH_ALEN]; |
| 174 | u8 sa[ETH_ALEN]; |
| 175 | u8 tid; |
| 176 | u8 if_flags; |
| 177 | __le16 flow_ring_id; |
| 178 | u8 tc; |
| 179 | u8 priority; |
| 180 | __le16 int_vector; |
| 181 | __le16 max_items; |
| 182 | __le16 len_item; |
| 183 | struct msgbuf_buf_addr flow_ring_addr; |
| 184 | }; |
| 185 | |
| 186 | struct msgbuf_tx_flowring_delete_req { |
| 187 | struct msgbuf_common_hdr msg; |
| 188 | __le16 flow_ring_id; |
| 189 | __le16 reason; |
| 190 | __le32 rsvd0[7]; |
| 191 | }; |
| 192 | |
| 193 | struct msgbuf_flowring_create_resp { |
| 194 | struct msgbuf_common_hdr msg; |
| 195 | struct msgbuf_completion_hdr compl_hdr; |
| 196 | __le32 rsvd0[3]; |
| 197 | }; |
| 198 | |
| 199 | struct msgbuf_flowring_delete_resp { |
| 200 | struct msgbuf_common_hdr msg; |
| 201 | struct msgbuf_completion_hdr compl_hdr; |
| 202 | __le32 rsvd0[3]; |
| 203 | }; |
| 204 | |
| 205 | struct msgbuf_flowring_flush_resp { |
| 206 | struct msgbuf_common_hdr msg; |
| 207 | struct msgbuf_completion_hdr compl_hdr; |
| 208 | __le32 rsvd0[3]; |
| 209 | }; |
| 210 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 211 | struct brcmf_msgbuf_work_item { |
| 212 | struct list_head queue; |
| 213 | u32 flowid; |
| 214 | int ifidx; |
| 215 | u8 sa[ETH_ALEN]; |
| 216 | u8 da[ETH_ALEN]; |
| 217 | }; |
| 218 | |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 219 | struct brcmf_msgbuf { |
| 220 | struct brcmf_pub *drvr; |
| 221 | |
| 222 | struct brcmf_commonring **commonrings; |
| 223 | struct brcmf_commonring **flowrings; |
| 224 | dma_addr_t *flowring_dma_handle; |
| 225 | u16 nrof_flowrings; |
| 226 | |
| 227 | u16 rx_dataoffset; |
| 228 | u32 max_rxbufpost; |
| 229 | u16 rx_metadata_offset; |
| 230 | u32 rxbufpost; |
| 231 | |
| 232 | u32 max_ioctlrespbuf; |
| 233 | u32 cur_ioctlrespbuf; |
| 234 | u32 max_eventbuf; |
| 235 | u32 cur_eventbuf; |
| 236 | |
| 237 | void *ioctbuf; |
| 238 | dma_addr_t ioctbuf_handle; |
| 239 | u32 ioctbuf_phys_hi; |
| 240 | u32 ioctbuf_phys_lo; |
Hante Meuleman | ff0a623 | 2014-09-30 10:23:14 +0200 | [diff] [blame] | 241 | int ioctl_resp_status; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 242 | u32 ioctl_resp_ret_len; |
| 243 | u32 ioctl_resp_pktid; |
| 244 | |
| 245 | u16 data_seq_no; |
| 246 | u16 ioctl_seq_no; |
| 247 | u32 reqid; |
| 248 | wait_queue_head_t ioctl_resp_wait; |
| 249 | bool ctl_completed; |
| 250 | |
| 251 | struct brcmf_msgbuf_pktids *tx_pktids; |
| 252 | struct brcmf_msgbuf_pktids *rx_pktids; |
| 253 | struct brcmf_flowring *flow; |
| 254 | |
| 255 | struct workqueue_struct *txflow_wq; |
| 256 | struct work_struct txflow_work; |
| 257 | unsigned long *flow_map; |
| 258 | unsigned long *txstatus_done_map; |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 259 | |
| 260 | struct work_struct flowring_work; |
| 261 | spinlock_t flowring_work_lock; |
| 262 | struct list_head work_queue; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 263 | }; |
| 264 | |
| 265 | struct brcmf_msgbuf_pktid { |
| 266 | atomic_t allocated; |
| 267 | u16 data_offset; |
| 268 | struct sk_buff *skb; |
| 269 | dma_addr_t physaddr; |
| 270 | }; |
| 271 | |
| 272 | struct brcmf_msgbuf_pktids { |
| 273 | u32 array_size; |
| 274 | u32 last_allocated_idx; |
| 275 | enum dma_data_direction direction; |
| 276 | struct brcmf_msgbuf_pktid *array; |
| 277 | }; |
| 278 | |
| 279 | |
| 280 | /* dma flushing needs implementation for mips and arm platforms. Should |
| 281 | * be put in util. Note, this is not real flushing. It is virtual non |
| 282 | * cached memory. Only write buffers should have to be drained. Though |
| 283 | * this may be different depending on platform...... |
| 284 | */ |
| 285 | #define brcmf_dma_flush(addr, len) |
| 286 | #define brcmf_dma_invalidate_cache(addr, len) |
| 287 | |
| 288 | |
| 289 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf); |
| 290 | |
| 291 | |
| 292 | static struct brcmf_msgbuf_pktids * |
| 293 | brcmf_msgbuf_init_pktids(u32 nr_array_entries, |
| 294 | enum dma_data_direction direction) |
| 295 | { |
| 296 | struct brcmf_msgbuf_pktid *array; |
| 297 | struct brcmf_msgbuf_pktids *pktids; |
| 298 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 299 | array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 300 | if (!array) |
| 301 | return NULL; |
| 302 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 303 | pktids = kzalloc(sizeof(*pktids), GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 304 | if (!pktids) { |
| 305 | kfree(array); |
| 306 | return NULL; |
| 307 | } |
| 308 | pktids->array = array; |
| 309 | pktids->array_size = nr_array_entries; |
| 310 | |
| 311 | return pktids; |
| 312 | } |
| 313 | |
| 314 | |
| 315 | static int |
| 316 | brcmf_msgbuf_alloc_pktid(struct device *dev, |
| 317 | struct brcmf_msgbuf_pktids *pktids, |
| 318 | struct sk_buff *skb, u16 data_offset, |
| 319 | dma_addr_t *physaddr, u32 *idx) |
| 320 | { |
| 321 | struct brcmf_msgbuf_pktid *array; |
| 322 | u32 count; |
| 323 | |
| 324 | array = pktids->array; |
| 325 | |
| 326 | *physaddr = dma_map_single(dev, skb->data + data_offset, |
| 327 | skb->len - data_offset, pktids->direction); |
| 328 | |
| 329 | if (dma_mapping_error(dev, *physaddr)) { |
| 330 | brcmf_err("dma_map_single failed !!\n"); |
| 331 | return -ENOMEM; |
| 332 | } |
| 333 | |
| 334 | *idx = pktids->last_allocated_idx; |
| 335 | |
| 336 | count = 0; |
| 337 | do { |
| 338 | (*idx)++; |
| 339 | if (*idx == pktids->array_size) |
| 340 | *idx = 0; |
| 341 | if (array[*idx].allocated.counter == 0) |
| 342 | if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0) |
| 343 | break; |
| 344 | count++; |
| 345 | } while (count < pktids->array_size); |
| 346 | |
| 347 | if (count == pktids->array_size) |
| 348 | return -ENOMEM; |
| 349 | |
| 350 | array[*idx].data_offset = data_offset; |
| 351 | array[*idx].physaddr = *physaddr; |
| 352 | array[*idx].skb = skb; |
| 353 | |
| 354 | pktids->last_allocated_idx = *idx; |
| 355 | |
| 356 | return 0; |
| 357 | } |
| 358 | |
| 359 | |
| 360 | static struct sk_buff * |
| 361 | brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids, |
| 362 | u32 idx) |
| 363 | { |
| 364 | struct brcmf_msgbuf_pktid *pktid; |
| 365 | struct sk_buff *skb; |
| 366 | |
| 367 | if (idx >= pktids->array_size) { |
| 368 | brcmf_err("Invalid packet id %d (max %d)\n", idx, |
| 369 | pktids->array_size); |
| 370 | return NULL; |
| 371 | } |
| 372 | if (pktids->array[idx].allocated.counter) { |
| 373 | pktid = &pktids->array[idx]; |
| 374 | dma_unmap_single(dev, pktid->physaddr, |
| 375 | pktid->skb->len - pktid->data_offset, |
| 376 | pktids->direction); |
| 377 | skb = pktid->skb; |
| 378 | pktid->allocated.counter = 0; |
| 379 | return skb; |
| 380 | } else { |
| 381 | brcmf_err("Invalid packet id %d (not in use)\n", idx); |
| 382 | } |
| 383 | |
| 384 | return NULL; |
| 385 | } |
| 386 | |
| 387 | |
| 388 | static void |
| 389 | brcmf_msgbuf_release_array(struct device *dev, |
| 390 | struct brcmf_msgbuf_pktids *pktids) |
| 391 | { |
| 392 | struct brcmf_msgbuf_pktid *array; |
| 393 | struct brcmf_msgbuf_pktid *pktid; |
| 394 | u32 count; |
| 395 | |
| 396 | array = pktids->array; |
| 397 | count = 0; |
| 398 | do { |
| 399 | if (array[count].allocated.counter) { |
| 400 | pktid = &array[count]; |
| 401 | dma_unmap_single(dev, pktid->physaddr, |
| 402 | pktid->skb->len - pktid->data_offset, |
| 403 | pktids->direction); |
| 404 | brcmu_pkt_buf_free_skb(pktid->skb); |
| 405 | } |
| 406 | count++; |
| 407 | } while (count < pktids->array_size); |
| 408 | |
| 409 | kfree(array); |
| 410 | kfree(pktids); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf) |
| 415 | { |
| 416 | if (msgbuf->rx_pktids) |
| 417 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, |
| 418 | msgbuf->rx_pktids); |
| 419 | if (msgbuf->tx_pktids) |
| 420 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, |
| 421 | msgbuf->tx_pktids); |
| 422 | } |
| 423 | |
| 424 | |
| 425 | static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx, |
| 426 | uint cmd, void *buf, uint len) |
| 427 | { |
| 428 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 429 | struct brcmf_commonring *commonring; |
| 430 | struct msgbuf_ioctl_req_hdr *request; |
| 431 | u16 buf_len; |
| 432 | void *ret_ptr; |
| 433 | int err; |
| 434 | |
| 435 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
| 436 | brcmf_commonring_lock(commonring); |
| 437 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
| 438 | if (!ret_ptr) { |
| 439 | brcmf_err("Failed to reserve space in commonring\n"); |
| 440 | brcmf_commonring_unlock(commonring); |
| 441 | return -ENOMEM; |
| 442 | } |
| 443 | |
| 444 | msgbuf->reqid++; |
| 445 | |
| 446 | request = (struct msgbuf_ioctl_req_hdr *)ret_ptr; |
| 447 | request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ; |
| 448 | request->msg.ifidx = (u8)ifidx; |
| 449 | request->msg.flags = 0; |
| 450 | request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID); |
| 451 | request->cmd = cpu_to_le32(cmd); |
| 452 | request->output_buf_len = cpu_to_le16(len); |
| 453 | request->trans_id = cpu_to_le16(msgbuf->reqid); |
| 454 | |
| 455 | buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE); |
| 456 | request->input_buf_len = cpu_to_le16(buf_len); |
| 457 | request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi); |
| 458 | request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo); |
| 459 | if (buf) |
| 460 | memcpy(msgbuf->ioctbuf, buf, buf_len); |
| 461 | else |
| 462 | memset(msgbuf->ioctbuf, 0, buf_len); |
| 463 | brcmf_dma_flush(ioctl_buf, buf_len); |
| 464 | |
| 465 | err = brcmf_commonring_write_complete(commonring); |
| 466 | brcmf_commonring_unlock(commonring); |
| 467 | |
| 468 | return err; |
| 469 | } |
| 470 | |
| 471 | |
| 472 | static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf) |
| 473 | { |
| 474 | return wait_event_timeout(msgbuf->ioctl_resp_wait, |
| 475 | msgbuf->ctl_completed, |
| 476 | msecs_to_jiffies(MSGBUF_IOCTL_RESP_TIMEOUT)); |
| 477 | } |
| 478 | |
| 479 | |
| 480 | static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf) |
| 481 | { |
| 482 | if (waitqueue_active(&msgbuf->ioctl_resp_wait)) { |
| 483 | msgbuf->ctl_completed = true; |
| 484 | wake_up(&msgbuf->ioctl_resp_wait); |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | |
| 489 | static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx, |
| 490 | uint cmd, void *buf, uint len) |
| 491 | { |
| 492 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 493 | struct sk_buff *skb = NULL; |
| 494 | int timeout; |
| 495 | int err; |
| 496 | |
| 497 | brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len); |
| 498 | msgbuf->ctl_completed = false; |
| 499 | err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len); |
| 500 | if (err) |
| 501 | return err; |
| 502 | |
| 503 | timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf); |
| 504 | if (!timeout) { |
| 505 | brcmf_err("Timeout on response for query command\n"); |
| 506 | return -EIO; |
| 507 | } |
| 508 | |
| 509 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
| 510 | msgbuf->rx_pktids, |
| 511 | msgbuf->ioctl_resp_pktid); |
| 512 | if (msgbuf->ioctl_resp_ret_len != 0) { |
| 513 | if (!skb) { |
| 514 | brcmf_err("Invalid packet id idx recv'd %d\n", |
| 515 | msgbuf->ioctl_resp_pktid); |
| 516 | return -EBADF; |
| 517 | } |
| 518 | memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ? |
| 519 | len : msgbuf->ioctl_resp_ret_len); |
| 520 | } |
Markus Elfring | ac96ce8 | 2014-11-20 16:42:51 +0100 | [diff] [blame] | 521 | brcmu_pkt_buf_free_skb(skb); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 522 | |
| 523 | return msgbuf->ioctl_resp_status; |
| 524 | } |
| 525 | |
| 526 | |
| 527 | static int brcmf_msgbuf_set_dcmd(struct brcmf_pub *drvr, int ifidx, |
| 528 | uint cmd, void *buf, uint len) |
| 529 | { |
| 530 | return brcmf_msgbuf_query_dcmd(drvr, ifidx, cmd, buf, len); |
| 531 | } |
| 532 | |
| 533 | |
| 534 | static int brcmf_msgbuf_hdrpull(struct brcmf_pub *drvr, bool do_fws, |
| 535 | u8 *ifidx, struct sk_buff *skb) |
| 536 | { |
| 537 | return -ENODEV; |
| 538 | } |
| 539 | |
| 540 | |
| 541 | static void |
| 542 | brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid) |
| 543 | { |
| 544 | u32 dma_sz; |
| 545 | void *dma_buf; |
| 546 | |
| 547 | brcmf_dbg(MSGBUF, "Removing flowring %d\n", flowid); |
| 548 | |
| 549 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
| 550 | dma_buf = msgbuf->flowrings[flowid]->buf_addr; |
| 551 | dma_free_coherent(msgbuf->drvr->bus_if->dev, dma_sz, dma_buf, |
| 552 | msgbuf->flowring_dma_handle[flowid]); |
| 553 | |
| 554 | brcmf_flowring_delete(msgbuf->flow, flowid); |
| 555 | } |
| 556 | |
| 557 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 558 | static struct brcmf_msgbuf_work_item * |
| 559 | brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf) |
| 560 | { |
| 561 | struct brcmf_msgbuf_work_item *work = NULL; |
| 562 | ulong flags; |
| 563 | |
| 564 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); |
| 565 | if (!list_empty(&msgbuf->work_queue)) { |
| 566 | work = list_first_entry(&msgbuf->work_queue, |
| 567 | struct brcmf_msgbuf_work_item, queue); |
| 568 | list_del(&work->queue); |
| 569 | } |
| 570 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); |
| 571 | |
| 572 | return work; |
| 573 | } |
| 574 | |
| 575 | |
| 576 | static u32 |
| 577 | brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf, |
| 578 | struct brcmf_msgbuf_work_item *work) |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 579 | { |
| 580 | struct msgbuf_tx_flowring_create_req *create; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 581 | struct brcmf_commonring *commonring; |
| 582 | void *ret_ptr; |
| 583 | u32 flowid; |
| 584 | void *dma_buf; |
| 585 | u32 dma_sz; |
| 586 | long long address; |
| 587 | int err; |
| 588 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 589 | flowid = work->flowid; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 590 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 591 | dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz, |
| 592 | &msgbuf->flowring_dma_handle[flowid], |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 593 | GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 594 | if (!dma_buf) { |
| 595 | brcmf_err("dma_alloc_coherent failed\n"); |
| 596 | brcmf_flowring_delete(msgbuf->flow, flowid); |
| 597 | return BRCMF_FLOWRING_INVALID_ID; |
| 598 | } |
| 599 | |
| 600 | brcmf_commonring_config(msgbuf->flowrings[flowid], |
| 601 | BRCMF_H2D_TXFLOWRING_MAX_ITEM, |
| 602 | BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf); |
| 603 | |
| 604 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
| 605 | brcmf_commonring_lock(commonring); |
| 606 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
| 607 | if (!ret_ptr) { |
| 608 | brcmf_err("Failed to reserve space in commonring\n"); |
| 609 | brcmf_commonring_unlock(commonring); |
| 610 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
| 611 | return BRCMF_FLOWRING_INVALID_ID; |
| 612 | } |
| 613 | |
| 614 | create = (struct msgbuf_tx_flowring_create_req *)ret_ptr; |
| 615 | create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE; |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 616 | create->msg.ifidx = work->ifidx; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 617 | create->msg.request_id = 0; |
| 618 | create->tid = brcmf_flowring_tid(msgbuf->flow, flowid); |
| 619 | create->flow_ring_id = cpu_to_le16(flowid + |
| 620 | BRCMF_NROF_H2D_COMMON_MSGRINGS); |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 621 | memcpy(create->sa, work->sa, ETH_ALEN); |
| 622 | memcpy(create->da, work->da, ETH_ALEN); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 623 | address = (long long)(long)msgbuf->flowring_dma_handle[flowid]; |
| 624 | create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32); |
| 625 | create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff); |
| 626 | create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM); |
| 627 | create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE); |
| 628 | |
| 629 | brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n", |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 630 | flowid, work->da, create->tid, work->ifidx); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 631 | |
| 632 | err = brcmf_commonring_write_complete(commonring); |
| 633 | brcmf_commonring_unlock(commonring); |
| 634 | if (err) { |
| 635 | brcmf_err("Failed to write commonring\n"); |
| 636 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
| 637 | return BRCMF_FLOWRING_INVALID_ID; |
| 638 | } |
| 639 | |
| 640 | return flowid; |
| 641 | } |
| 642 | |
| 643 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 644 | static void brcmf_msgbuf_flowring_worker(struct work_struct *work) |
| 645 | { |
| 646 | struct brcmf_msgbuf *msgbuf; |
| 647 | struct brcmf_msgbuf_work_item *create; |
| 648 | |
| 649 | msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work); |
| 650 | |
| 651 | while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) { |
| 652 | brcmf_msgbuf_flowring_create_worker(msgbuf, create); |
| 653 | kfree(create); |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | |
| 658 | static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx, |
| 659 | struct sk_buff *skb) |
| 660 | { |
| 661 | struct brcmf_msgbuf_work_item *create; |
| 662 | struct ethhdr *eh = (struct ethhdr *)(skb->data); |
| 663 | u32 flowid; |
| 664 | ulong flags; |
| 665 | |
| 666 | create = kzalloc(sizeof(*create), GFP_ATOMIC); |
| 667 | if (create == NULL) |
| 668 | return BRCMF_FLOWRING_INVALID_ID; |
| 669 | |
| 670 | flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest, |
| 671 | skb->priority, ifidx); |
| 672 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { |
| 673 | kfree(create); |
| 674 | return flowid; |
| 675 | } |
| 676 | |
| 677 | create->flowid = flowid; |
| 678 | create->ifidx = ifidx; |
| 679 | memcpy(create->sa, eh->h_source, ETH_ALEN); |
| 680 | memcpy(create->da, eh->h_dest, ETH_ALEN); |
| 681 | |
| 682 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); |
| 683 | list_add_tail(&create->queue, &msgbuf->work_queue); |
| 684 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); |
| 685 | schedule_work(&msgbuf->flowring_work); |
| 686 | |
| 687 | return flowid; |
| 688 | } |
| 689 | |
| 690 | |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 691 | static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u8 flowid) |
| 692 | { |
| 693 | struct brcmf_flowring *flow = msgbuf->flow; |
| 694 | struct brcmf_commonring *commonring; |
| 695 | void *ret_ptr; |
| 696 | u32 count; |
| 697 | struct sk_buff *skb; |
| 698 | dma_addr_t physaddr; |
| 699 | u32 pktid; |
| 700 | struct msgbuf_tx_msghdr *tx_msghdr; |
| 701 | long long address; |
| 702 | |
| 703 | commonring = msgbuf->flowrings[flowid]; |
| 704 | if (!brcmf_commonring_write_available(commonring)) |
| 705 | return; |
| 706 | |
| 707 | brcmf_commonring_lock(commonring); |
| 708 | |
| 709 | count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1; |
| 710 | while (brcmf_flowring_qlen(flow, flowid)) { |
| 711 | skb = brcmf_flowring_dequeue(flow, flowid); |
| 712 | if (skb == NULL) { |
| 713 | brcmf_err("No SKB, but qlen %d\n", |
| 714 | brcmf_flowring_qlen(flow, flowid)); |
| 715 | break; |
| 716 | } |
| 717 | skb_orphan(skb); |
| 718 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, |
| 719 | msgbuf->tx_pktids, skb, ETH_HLEN, |
| 720 | &physaddr, &pktid)) { |
| 721 | brcmf_flowring_reinsert(flow, flowid, skb); |
| 722 | brcmf_err("No PKTID available !!\n"); |
| 723 | break; |
| 724 | } |
| 725 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
| 726 | if (!ret_ptr) { |
| 727 | brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
| 728 | msgbuf->tx_pktids, pktid); |
| 729 | brcmf_flowring_reinsert(flow, flowid, skb); |
| 730 | break; |
| 731 | } |
| 732 | count++; |
| 733 | |
| 734 | tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr; |
| 735 | |
| 736 | tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST; |
| 737 | tx_msghdr->msg.request_id = cpu_to_le32(pktid); |
| 738 | tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid); |
| 739 | tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3; |
| 740 | tx_msghdr->flags |= (skb->priority & 0x07) << |
| 741 | BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT; |
| 742 | tx_msghdr->seg_cnt = 1; |
| 743 | memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN); |
| 744 | tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN); |
| 745 | address = (long long)(long)physaddr; |
| 746 | tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32); |
| 747 | tx_msghdr->data_buf_addr.low_addr = |
| 748 | cpu_to_le32(address & 0xffffffff); |
| 749 | tx_msghdr->metadata_buf_len = 0; |
| 750 | tx_msghdr->metadata_buf_addr.high_addr = 0; |
| 751 | tx_msghdr->metadata_buf_addr.low_addr = 0; |
| 752 | if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) { |
| 753 | brcmf_commonring_write_complete(commonring); |
| 754 | count = 0; |
| 755 | } |
| 756 | } |
| 757 | if (count) |
| 758 | brcmf_commonring_write_complete(commonring); |
| 759 | brcmf_commonring_unlock(commonring); |
| 760 | } |
| 761 | |
| 762 | |
| 763 | static void brcmf_msgbuf_txflow_worker(struct work_struct *worker) |
| 764 | { |
| 765 | struct brcmf_msgbuf *msgbuf; |
| 766 | u32 flowid; |
| 767 | |
| 768 | msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work); |
| 769 | for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->nrof_flowrings) { |
| 770 | clear_bit(flowid, msgbuf->flow_map); |
| 771 | brcmf_msgbuf_txflow(msgbuf, flowid); |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | |
| 776 | static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid) |
| 777 | { |
| 778 | set_bit(flowid, msgbuf->flow_map); |
| 779 | queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work); |
| 780 | |
| 781 | return 0; |
| 782 | } |
| 783 | |
| 784 | |
| 785 | static int brcmf_msgbuf_txdata(struct brcmf_pub *drvr, int ifidx, |
| 786 | u8 offset, struct sk_buff *skb) |
| 787 | { |
| 788 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 789 | struct brcmf_flowring *flow = msgbuf->flow; |
| 790 | struct ethhdr *eh = (struct ethhdr *)(skb->data); |
| 791 | u32 flowid; |
| 792 | |
| 793 | flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx); |
| 794 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { |
| 795 | flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb); |
| 796 | if (flowid == BRCMF_FLOWRING_INVALID_ID) |
| 797 | return -ENOMEM; |
| 798 | } |
| 799 | brcmf_flowring_enqueue(flow, flowid, skb); |
| 800 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid); |
| 801 | |
| 802 | return 0; |
| 803 | } |
| 804 | |
| 805 | |
| 806 | static void |
| 807 | brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx, |
| 808 | enum proto_addr_mode addr_mode) |
| 809 | { |
| 810 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 811 | |
| 812 | brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode); |
| 813 | } |
| 814 | |
| 815 | |
| 816 | static void |
| 817 | brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) |
| 818 | { |
| 819 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 820 | |
| 821 | brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer); |
| 822 | } |
| 823 | |
| 824 | |
| 825 | static void |
Hante Meuleman | 70b7d94 | 2014-07-30 13:20:07 +0200 | [diff] [blame] | 826 | brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) |
| 827 | { |
| 828 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 829 | |
| 830 | brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer); |
| 831 | } |
| 832 | |
| 833 | |
| 834 | static void |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 835 | brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf) |
| 836 | { |
| 837 | struct msgbuf_ioctl_resp_hdr *ioctl_resp; |
| 838 | |
| 839 | ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf; |
| 840 | |
Hante Meuleman | ff0a623 | 2014-09-30 10:23:14 +0200 | [diff] [blame] | 841 | msgbuf->ioctl_resp_status = |
| 842 | (s16)le16_to_cpu(ioctl_resp->compl_hdr.status); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 843 | msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len); |
| 844 | msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id); |
| 845 | |
| 846 | brcmf_msgbuf_ioctl_resp_wake(msgbuf); |
| 847 | |
| 848 | if (msgbuf->cur_ioctlrespbuf) |
| 849 | msgbuf->cur_ioctlrespbuf--; |
| 850 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); |
| 851 | } |
| 852 | |
| 853 | |
| 854 | static void |
| 855 | brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf) |
| 856 | { |
| 857 | struct msgbuf_tx_status *tx_status; |
| 858 | u32 idx; |
| 859 | struct sk_buff *skb; |
| 860 | u16 flowid; |
| 861 | |
| 862 | tx_status = (struct msgbuf_tx_status *)buf; |
| 863 | idx = le32_to_cpu(tx_status->msg.request_id); |
| 864 | flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id); |
| 865 | flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS; |
| 866 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
| 867 | msgbuf->tx_pktids, idx); |
| 868 | if (!skb) { |
| 869 | brcmf_err("Invalid packet id idx recv'd %d\n", idx); |
| 870 | return; |
| 871 | } |
| 872 | |
| 873 | set_bit(flowid, msgbuf->txstatus_done_map); |
| 874 | |
| 875 | brcmf_txfinalize(msgbuf->drvr, skb, tx_status->msg.ifidx, true); |
| 876 | } |
| 877 | |
| 878 | |
| 879 | static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count) |
| 880 | { |
| 881 | struct brcmf_commonring *commonring; |
| 882 | void *ret_ptr; |
| 883 | struct sk_buff *skb; |
| 884 | u16 alloced; |
| 885 | u32 pktlen; |
| 886 | dma_addr_t physaddr; |
| 887 | struct msgbuf_rx_bufpost *rx_bufpost; |
| 888 | long long address; |
| 889 | u32 pktid; |
| 890 | u32 i; |
| 891 | |
| 892 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; |
| 893 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, |
| 894 | count, |
| 895 | &alloced); |
| 896 | if (!ret_ptr) { |
| 897 | brcmf_err("Failed to reserve space in commonring\n"); |
| 898 | return 0; |
| 899 | } |
| 900 | |
| 901 | for (i = 0; i < alloced; i++) { |
| 902 | rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr; |
| 903 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); |
| 904 | |
| 905 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); |
| 906 | |
| 907 | if (skb == NULL) { |
| 908 | brcmf_err("Failed to alloc SKB\n"); |
| 909 | brcmf_commonring_write_cancel(commonring, alloced - i); |
| 910 | break; |
| 911 | } |
| 912 | |
| 913 | pktlen = skb->len; |
| 914 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, |
| 915 | msgbuf->rx_pktids, skb, 0, |
| 916 | &physaddr, &pktid)) { |
| 917 | dev_kfree_skb_any(skb); |
| 918 | brcmf_err("No PKTID available !!\n"); |
| 919 | brcmf_commonring_write_cancel(commonring, alloced - i); |
| 920 | break; |
| 921 | } |
| 922 | |
| 923 | if (msgbuf->rx_metadata_offset) { |
| 924 | address = (long long)(long)physaddr; |
| 925 | rx_bufpost->metadata_buf_len = |
| 926 | cpu_to_le16(msgbuf->rx_metadata_offset); |
| 927 | rx_bufpost->metadata_buf_addr.high_addr = |
| 928 | cpu_to_le32(address >> 32); |
| 929 | rx_bufpost->metadata_buf_addr.low_addr = |
| 930 | cpu_to_le32(address & 0xffffffff); |
| 931 | |
| 932 | skb_pull(skb, msgbuf->rx_metadata_offset); |
| 933 | pktlen = skb->len; |
| 934 | physaddr += msgbuf->rx_metadata_offset; |
| 935 | } |
| 936 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST; |
| 937 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); |
| 938 | |
| 939 | address = (long long)(long)physaddr; |
| 940 | rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen); |
| 941 | rx_bufpost->data_buf_addr.high_addr = |
| 942 | cpu_to_le32(address >> 32); |
| 943 | rx_bufpost->data_buf_addr.low_addr = |
| 944 | cpu_to_le32(address & 0xffffffff); |
| 945 | |
| 946 | ret_ptr += brcmf_commonring_len_item(commonring); |
| 947 | } |
| 948 | |
| 949 | if (i) |
| 950 | brcmf_commonring_write_complete(commonring); |
| 951 | |
| 952 | return i; |
| 953 | } |
| 954 | |
| 955 | |
| 956 | static void |
| 957 | brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf) |
| 958 | { |
| 959 | u32 fillbufs; |
| 960 | u32 retcount; |
| 961 | |
| 962 | fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost; |
| 963 | |
| 964 | while (fillbufs) { |
| 965 | retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs); |
| 966 | if (!retcount) |
| 967 | break; |
| 968 | msgbuf->rxbufpost += retcount; |
| 969 | fillbufs -= retcount; |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | |
| 974 | static void |
| 975 | brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt) |
| 976 | { |
| 977 | msgbuf->rxbufpost -= rxcnt; |
| 978 | if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost - |
| 979 | BRCMF_MSGBUF_RXBUFPOST_THRESHOLD)) |
| 980 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); |
| 981 | } |
| 982 | |
| 983 | |
| 984 | static u32 |
| 985 | brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf, |
| 986 | u32 count) |
| 987 | { |
| 988 | struct brcmf_commonring *commonring; |
| 989 | void *ret_ptr; |
| 990 | struct sk_buff *skb; |
| 991 | u16 alloced; |
| 992 | u32 pktlen; |
| 993 | dma_addr_t physaddr; |
| 994 | struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost; |
| 995 | long long address; |
| 996 | u32 pktid; |
| 997 | u32 i; |
| 998 | |
| 999 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
| 1000 | brcmf_commonring_lock(commonring); |
| 1001 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, |
| 1002 | count, |
| 1003 | &alloced); |
| 1004 | if (!ret_ptr) { |
| 1005 | brcmf_err("Failed to reserve space in commonring\n"); |
| 1006 | brcmf_commonring_unlock(commonring); |
| 1007 | return 0; |
| 1008 | } |
| 1009 | |
| 1010 | for (i = 0; i < alloced; i++) { |
| 1011 | rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr; |
| 1012 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); |
| 1013 | |
| 1014 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); |
| 1015 | |
| 1016 | if (skb == NULL) { |
| 1017 | brcmf_err("Failed to alloc SKB\n"); |
| 1018 | brcmf_commonring_write_cancel(commonring, alloced - i); |
| 1019 | break; |
| 1020 | } |
| 1021 | |
| 1022 | pktlen = skb->len; |
| 1023 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, |
| 1024 | msgbuf->rx_pktids, skb, 0, |
| 1025 | &physaddr, &pktid)) { |
| 1026 | dev_kfree_skb_any(skb); |
| 1027 | brcmf_err("No PKTID available !!\n"); |
| 1028 | brcmf_commonring_write_cancel(commonring, alloced - i); |
| 1029 | break; |
| 1030 | } |
| 1031 | if (event_buf) |
| 1032 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST; |
| 1033 | else |
| 1034 | rx_bufpost->msg.msgtype = |
| 1035 | MSGBUF_TYPE_IOCTLRESP_BUF_POST; |
| 1036 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); |
| 1037 | |
| 1038 | address = (long long)(long)physaddr; |
| 1039 | rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen); |
| 1040 | rx_bufpost->host_buf_addr.high_addr = |
| 1041 | cpu_to_le32(address >> 32); |
| 1042 | rx_bufpost->host_buf_addr.low_addr = |
| 1043 | cpu_to_le32(address & 0xffffffff); |
| 1044 | |
| 1045 | ret_ptr += brcmf_commonring_len_item(commonring); |
| 1046 | } |
| 1047 | |
| 1048 | if (i) |
| 1049 | brcmf_commonring_write_complete(commonring); |
| 1050 | |
| 1051 | brcmf_commonring_unlock(commonring); |
| 1052 | |
| 1053 | return i; |
| 1054 | } |
| 1055 | |
| 1056 | |
| 1057 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf) |
| 1058 | { |
| 1059 | u32 count; |
| 1060 | |
| 1061 | count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf; |
| 1062 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count); |
| 1063 | msgbuf->cur_ioctlrespbuf += count; |
| 1064 | } |
| 1065 | |
| 1066 | |
| 1067 | static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf) |
| 1068 | { |
| 1069 | u32 count; |
| 1070 | |
| 1071 | count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf; |
| 1072 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count); |
| 1073 | msgbuf->cur_eventbuf += count; |
| 1074 | } |
| 1075 | |
| 1076 | |
| 1077 | static void |
| 1078 | brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb, |
| 1079 | u8 ifidx) |
| 1080 | { |
| 1081 | struct brcmf_if *ifp; |
| 1082 | |
Hante Meuleman | 94a6120 | 2014-12-03 21:05:28 +0100 | [diff] [blame] | 1083 | /* The ifidx is the idx to map to matching netdev/ifp. When receiving |
| 1084 | * events this is easy because it contains the bssidx which maps |
| 1085 | * 1-on-1 to the netdev/ifp. But for data frames the ifidx is rcvd. |
| 1086 | * bssidx 1 is used for p2p0 and no data can be received or |
| 1087 | * transmitted on it. Therefor bssidx is ifidx + 1 if ifidx > 0 |
| 1088 | */ |
| 1089 | if (ifidx) |
| 1090 | (ifidx)++; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1091 | ifp = msgbuf->drvr->iflist[ifidx]; |
| 1092 | if (!ifp || !ifp->ndev) { |
Hante Meuleman | 94a6120 | 2014-12-03 21:05:28 +0100 | [diff] [blame] | 1093 | brcmf_err("Received pkt for invalid ifidx %d\n", ifidx); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1094 | brcmu_pkt_buf_free_skb(skb); |
| 1095 | return; |
| 1096 | } |
| 1097 | brcmf_netif_rx(ifp, skb); |
| 1098 | } |
| 1099 | |
| 1100 | |
| 1101 | static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) |
| 1102 | { |
| 1103 | struct msgbuf_rx_event *event; |
| 1104 | u32 idx; |
| 1105 | u16 buflen; |
| 1106 | struct sk_buff *skb; |
| 1107 | |
| 1108 | event = (struct msgbuf_rx_event *)buf; |
| 1109 | idx = le32_to_cpu(event->msg.request_id); |
| 1110 | buflen = le16_to_cpu(event->event_data_len); |
| 1111 | |
| 1112 | if (msgbuf->cur_eventbuf) |
| 1113 | msgbuf->cur_eventbuf--; |
| 1114 | brcmf_msgbuf_rxbuf_event_post(msgbuf); |
| 1115 | |
| 1116 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
| 1117 | msgbuf->rx_pktids, idx); |
| 1118 | if (!skb) |
| 1119 | return; |
| 1120 | |
| 1121 | if (msgbuf->rx_dataoffset) |
| 1122 | skb_pull(skb, msgbuf->rx_dataoffset); |
| 1123 | |
| 1124 | skb_trim(skb, buflen); |
| 1125 | |
| 1126 | brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx); |
| 1127 | } |
| 1128 | |
| 1129 | |
| 1130 | static void |
| 1131 | brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) |
| 1132 | { |
| 1133 | struct msgbuf_rx_complete *rx_complete; |
| 1134 | struct sk_buff *skb; |
| 1135 | u16 data_offset; |
| 1136 | u16 buflen; |
| 1137 | u32 idx; |
| 1138 | |
| 1139 | brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1); |
| 1140 | |
| 1141 | rx_complete = (struct msgbuf_rx_complete *)buf; |
| 1142 | data_offset = le16_to_cpu(rx_complete->data_offset); |
| 1143 | buflen = le16_to_cpu(rx_complete->data_len); |
| 1144 | idx = le32_to_cpu(rx_complete->msg.request_id); |
| 1145 | |
| 1146 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
| 1147 | msgbuf->rx_pktids, idx); |
| 1148 | |
| 1149 | if (data_offset) |
| 1150 | skb_pull(skb, data_offset); |
| 1151 | else if (msgbuf->rx_dataoffset) |
| 1152 | skb_pull(skb, msgbuf->rx_dataoffset); |
| 1153 | |
| 1154 | skb_trim(skb, buflen); |
| 1155 | |
| 1156 | brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx); |
| 1157 | } |
| 1158 | |
| 1159 | |
| 1160 | static void |
| 1161 | brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf, |
| 1162 | void *buf) |
| 1163 | { |
| 1164 | struct msgbuf_flowring_create_resp *flowring_create_resp; |
| 1165 | u16 status; |
| 1166 | u16 flowid; |
| 1167 | |
| 1168 | flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf; |
| 1169 | |
| 1170 | flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id); |
| 1171 | flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS; |
| 1172 | status = le16_to_cpu(flowring_create_resp->compl_hdr.status); |
| 1173 | |
| 1174 | if (status) { |
| 1175 | brcmf_err("Flowring creation failed, code %d\n", status); |
| 1176 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
| 1177 | return; |
| 1178 | } |
| 1179 | brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid, |
| 1180 | status); |
| 1181 | |
| 1182 | brcmf_flowring_open(msgbuf->flow, flowid); |
| 1183 | |
| 1184 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid); |
| 1185 | } |
| 1186 | |
| 1187 | |
| 1188 | static void |
| 1189 | brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf, |
| 1190 | void *buf) |
| 1191 | { |
| 1192 | struct msgbuf_flowring_delete_resp *flowring_delete_resp; |
| 1193 | u16 status; |
| 1194 | u16 flowid; |
| 1195 | |
| 1196 | flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf; |
| 1197 | |
| 1198 | flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id); |
| 1199 | flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS; |
| 1200 | status = le16_to_cpu(flowring_delete_resp->compl_hdr.status); |
| 1201 | |
| 1202 | if (status) { |
| 1203 | brcmf_err("Flowring deletion failed, code %d\n", status); |
| 1204 | brcmf_flowring_delete(msgbuf->flow, flowid); |
| 1205 | return; |
| 1206 | } |
| 1207 | brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid, |
| 1208 | status); |
| 1209 | |
| 1210 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
| 1211 | } |
| 1212 | |
| 1213 | |
| 1214 | static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf) |
| 1215 | { |
| 1216 | struct msgbuf_common_hdr *msg; |
| 1217 | |
| 1218 | msg = (struct msgbuf_common_hdr *)buf; |
| 1219 | switch (msg->msgtype) { |
| 1220 | case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT: |
| 1221 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n"); |
| 1222 | brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf); |
| 1223 | break; |
| 1224 | case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT: |
| 1225 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n"); |
| 1226 | brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf); |
| 1227 | break; |
| 1228 | case MSGBUF_TYPE_IOCTLPTR_REQ_ACK: |
| 1229 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n"); |
| 1230 | break; |
| 1231 | case MSGBUF_TYPE_IOCTL_CMPLT: |
| 1232 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n"); |
| 1233 | brcmf_msgbuf_process_ioctl_complete(msgbuf, buf); |
| 1234 | break; |
| 1235 | case MSGBUF_TYPE_WL_EVENT: |
| 1236 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n"); |
| 1237 | brcmf_msgbuf_process_event(msgbuf, buf); |
| 1238 | break; |
| 1239 | case MSGBUF_TYPE_TX_STATUS: |
| 1240 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n"); |
| 1241 | brcmf_msgbuf_process_txstatus(msgbuf, buf); |
| 1242 | break; |
| 1243 | case MSGBUF_TYPE_RX_CMPLT: |
| 1244 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n"); |
| 1245 | brcmf_msgbuf_process_rx_complete(msgbuf, buf); |
| 1246 | break; |
| 1247 | default: |
| 1248 | brcmf_err("Unsupported msgtype %d\n", msg->msgtype); |
| 1249 | break; |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | |
| 1254 | static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf, |
| 1255 | struct brcmf_commonring *commonring) |
| 1256 | { |
| 1257 | void *buf; |
| 1258 | u16 count; |
| 1259 | |
| 1260 | again: |
| 1261 | buf = brcmf_commonring_get_read_ptr(commonring, &count); |
| 1262 | if (buf == NULL) |
| 1263 | return; |
| 1264 | |
| 1265 | while (count) { |
| 1266 | brcmf_msgbuf_process_msgtype(msgbuf, |
| 1267 | buf + msgbuf->rx_dataoffset); |
| 1268 | buf += brcmf_commonring_len_item(commonring); |
| 1269 | count--; |
| 1270 | } |
| 1271 | brcmf_commonring_read_complete(commonring); |
| 1272 | |
| 1273 | if (commonring->r_ptr == 0) |
| 1274 | goto again; |
| 1275 | } |
| 1276 | |
| 1277 | |
| 1278 | int brcmf_proto_msgbuf_rx_trigger(struct device *dev) |
| 1279 | { |
| 1280 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| 1281 | struct brcmf_pub *drvr = bus_if->drvr; |
| 1282 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 1283 | void *buf; |
| 1284 | u32 flowid; |
| 1285 | |
| 1286 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; |
| 1287 | brcmf_msgbuf_process_rx(msgbuf, buf); |
| 1288 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; |
| 1289 | brcmf_msgbuf_process_rx(msgbuf, buf); |
| 1290 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; |
| 1291 | brcmf_msgbuf_process_rx(msgbuf, buf); |
| 1292 | |
| 1293 | for_each_set_bit(flowid, msgbuf->txstatus_done_map, |
| 1294 | msgbuf->nrof_flowrings) { |
| 1295 | clear_bit(flowid, msgbuf->txstatus_done_map); |
| 1296 | if (brcmf_flowring_qlen(msgbuf->flow, flowid)) |
| 1297 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid); |
| 1298 | } |
| 1299 | |
| 1300 | return 0; |
| 1301 | } |
| 1302 | |
| 1303 | |
| 1304 | void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid) |
| 1305 | { |
| 1306 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
| 1307 | struct msgbuf_tx_flowring_delete_req *delete; |
| 1308 | struct brcmf_commonring *commonring; |
| 1309 | void *ret_ptr; |
| 1310 | u8 ifidx; |
| 1311 | int err; |
| 1312 | |
| 1313 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
| 1314 | brcmf_commonring_lock(commonring); |
| 1315 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
| 1316 | if (!ret_ptr) { |
| 1317 | brcmf_err("FW unaware, flowring will be removed !!\n"); |
| 1318 | brcmf_commonring_unlock(commonring); |
| 1319 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
| 1320 | return; |
| 1321 | } |
| 1322 | |
| 1323 | delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr; |
| 1324 | |
| 1325 | ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid); |
| 1326 | |
| 1327 | delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE; |
| 1328 | delete->msg.ifidx = ifidx; |
| 1329 | delete->msg.request_id = 0; |
| 1330 | |
| 1331 | delete->flow_ring_id = cpu_to_le16(flowid + |
| 1332 | BRCMF_NROF_H2D_COMMON_MSGRINGS); |
| 1333 | delete->reason = 0; |
| 1334 | |
| 1335 | brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n", |
| 1336 | flowid, ifidx); |
| 1337 | |
| 1338 | err = brcmf_commonring_write_complete(commonring); |
| 1339 | brcmf_commonring_unlock(commonring); |
| 1340 | if (err) { |
| 1341 | brcmf_err("Failed to submit RING_DELETE, flowring will be removed\n"); |
| 1342 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
| 1343 | } |
| 1344 | } |
| 1345 | |
| 1346 | |
| 1347 | int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) |
| 1348 | { |
| 1349 | struct brcmf_bus_msgbuf *if_msgbuf; |
| 1350 | struct brcmf_msgbuf *msgbuf; |
| 1351 | long long address; |
| 1352 | u32 count; |
| 1353 | |
| 1354 | if_msgbuf = drvr->bus_if->msgbuf; |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1355 | msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1356 | if (!msgbuf) |
| 1357 | goto fail; |
| 1358 | |
| 1359 | msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow"); |
| 1360 | if (msgbuf->txflow_wq == NULL) { |
| 1361 | brcmf_err("workqueue creation failed\n"); |
| 1362 | goto fail; |
| 1363 | } |
| 1364 | INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker); |
| 1365 | count = BITS_TO_LONGS(if_msgbuf->nrof_flowrings); |
Hante Meuleman | 333c2aa | 2014-12-03 21:05:27 +0100 | [diff] [blame] | 1366 | count = count * sizeof(unsigned long); |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1367 | msgbuf->flow_map = kzalloc(count, GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1368 | if (!msgbuf->flow_map) |
| 1369 | goto fail; |
| 1370 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1371 | msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1372 | if (!msgbuf->txstatus_done_map) |
| 1373 | goto fail; |
| 1374 | |
| 1375 | msgbuf->drvr = drvr; |
| 1376 | msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev, |
| 1377 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, |
| 1378 | &msgbuf->ioctbuf_handle, |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1379 | GFP_KERNEL); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1380 | if (!msgbuf->ioctbuf) |
| 1381 | goto fail; |
| 1382 | address = (long long)(long)msgbuf->ioctbuf_handle; |
| 1383 | msgbuf->ioctbuf_phys_hi = address >> 32; |
| 1384 | msgbuf->ioctbuf_phys_lo = address & 0xffffffff; |
| 1385 | |
| 1386 | drvr->proto->hdrpull = brcmf_msgbuf_hdrpull; |
| 1387 | drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd; |
| 1388 | drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd; |
| 1389 | drvr->proto->txdata = brcmf_msgbuf_txdata; |
| 1390 | drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode; |
| 1391 | drvr->proto->delete_peer = brcmf_msgbuf_delete_peer; |
Hante Meuleman | 70b7d94 | 2014-07-30 13:20:07 +0200 | [diff] [blame] | 1392 | drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1393 | drvr->proto->pd = msgbuf; |
| 1394 | |
| 1395 | init_waitqueue_head(&msgbuf->ioctl_resp_wait); |
| 1396 | |
| 1397 | msgbuf->commonrings = |
| 1398 | (struct brcmf_commonring **)if_msgbuf->commonrings; |
| 1399 | msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings; |
| 1400 | msgbuf->nrof_flowrings = if_msgbuf->nrof_flowrings; |
| 1401 | msgbuf->flowring_dma_handle = kzalloc(msgbuf->nrof_flowrings * |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1402 | sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL); |
Arend van Spriel | 2d116b88 | 2014-08-07 14:45:09 +0200 | [diff] [blame] | 1403 | if (!msgbuf->flowring_dma_handle) |
| 1404 | goto fail; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1405 | |
| 1406 | msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset; |
| 1407 | msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost; |
| 1408 | |
| 1409 | msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST; |
| 1410 | msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST; |
| 1411 | |
| 1412 | msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS, |
| 1413 | DMA_TO_DEVICE); |
| 1414 | if (!msgbuf->tx_pktids) |
| 1415 | goto fail; |
| 1416 | msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS, |
| 1417 | DMA_FROM_DEVICE); |
| 1418 | if (!msgbuf->rx_pktids) |
| 1419 | goto fail; |
| 1420 | |
| 1421 | msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev, |
| 1422 | if_msgbuf->nrof_flowrings); |
| 1423 | if (!msgbuf->flow) |
| 1424 | goto fail; |
| 1425 | |
| 1426 | |
| 1427 | brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n", |
| 1428 | msgbuf->max_rxbufpost, msgbuf->max_eventbuf, |
| 1429 | msgbuf->max_ioctlrespbuf); |
| 1430 | count = 0; |
| 1431 | do { |
| 1432 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); |
| 1433 | if (msgbuf->max_rxbufpost != msgbuf->rxbufpost) |
| 1434 | msleep(10); |
| 1435 | else |
| 1436 | break; |
| 1437 | count++; |
| 1438 | } while (count < 10); |
| 1439 | brcmf_msgbuf_rxbuf_event_post(msgbuf); |
| 1440 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); |
| 1441 | |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1442 | INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker); |
| 1443 | spin_lock_init(&msgbuf->flowring_work_lock); |
| 1444 | INIT_LIST_HEAD(&msgbuf->work_queue); |
| 1445 | |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1446 | return 0; |
| 1447 | |
| 1448 | fail: |
| 1449 | if (msgbuf) { |
| 1450 | kfree(msgbuf->flow_map); |
| 1451 | kfree(msgbuf->txstatus_done_map); |
| 1452 | brcmf_msgbuf_release_pktids(msgbuf); |
Arend van Spriel | 2d116b88 | 2014-08-07 14:45:09 +0200 | [diff] [blame] | 1453 | kfree(msgbuf->flowring_dma_handle); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1454 | if (msgbuf->ioctbuf) |
| 1455 | dma_free_coherent(drvr->bus_if->dev, |
| 1456 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, |
| 1457 | msgbuf->ioctbuf, |
| 1458 | msgbuf->ioctbuf_handle); |
| 1459 | kfree(msgbuf); |
| 1460 | } |
| 1461 | return -ENOMEM; |
| 1462 | } |
| 1463 | |
| 1464 | |
| 1465 | void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr) |
| 1466 | { |
| 1467 | struct brcmf_msgbuf *msgbuf; |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1468 | struct brcmf_msgbuf_work_item *work; |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1469 | |
| 1470 | brcmf_dbg(TRACE, "Enter\n"); |
| 1471 | if (drvr->proto->pd) { |
| 1472 | msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
Hante Meuleman | 3ba0661 | 2014-09-30 10:23:15 +0200 | [diff] [blame] | 1473 | cancel_work_sync(&msgbuf->flowring_work); |
| 1474 | while (!list_empty(&msgbuf->work_queue)) { |
| 1475 | work = list_first_entry(&msgbuf->work_queue, |
| 1476 | struct brcmf_msgbuf_work_item, |
| 1477 | queue); |
| 1478 | list_del(&work->queue); |
| 1479 | kfree(work); |
| 1480 | } |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1481 | kfree(msgbuf->flow_map); |
| 1482 | kfree(msgbuf->txstatus_done_map); |
| 1483 | if (msgbuf->txflow_wq) |
| 1484 | destroy_workqueue(msgbuf->txflow_wq); |
| 1485 | |
| 1486 | brcmf_flowring_detach(msgbuf->flow); |
| 1487 | dma_free_coherent(drvr->bus_if->dev, |
| 1488 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, |
| 1489 | msgbuf->ioctbuf, msgbuf->ioctbuf_handle); |
| 1490 | brcmf_msgbuf_release_pktids(msgbuf); |
Arend van Spriel | 2d116b88 | 2014-08-07 14:45:09 +0200 | [diff] [blame] | 1491 | kfree(msgbuf->flowring_dma_handle); |
Hante Meuleman | 9a1bb602 | 2014-07-30 13:20:03 +0200 | [diff] [blame] | 1492 | kfree(msgbuf); |
| 1493 | drvr->proto->pd = NULL; |
| 1494 | } |
| 1495 | } |