Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1 | /** |
| 2 | @file Transmit.c |
| 3 | @defgroup tx_functions Transmission |
| 4 | @section Queueing |
| 5 | @dot |
| 6 | digraph transmit1 { |
| 7 | node[shape=box] |
| 8 | edge[weight=5;color=red] |
| 9 | bcm_transmit->reply_to_arp_request[label="ARP"] |
| 10 | bcm_transmit->GetPacketQueueIndex[label="IP Packet"] |
| 11 | GetPacketQueueIndex->IpVersion4[label="IPV4"] |
| 12 | GetPacketQueueIndex->IpVersion6[label="IPV6"] |
| 13 | } |
| 14 | |
| 15 | @enddot |
| 16 | |
| 17 | @section De-Queueing |
| 18 | @dot |
| 19 | digraph transmit2 { |
| 20 | node[shape=box] |
| 21 | edge[weight=5;color=red] |
| 22 | interrupt_service_thread->transmit_packets |
| 23 | tx_pkt_hdler->transmit_packets |
| 24 | transmit_packets->CheckAndSendPacketFromIndex |
| 25 | transmit_packets->UpdateTokenCount |
| 26 | CheckAndSendPacketFromIndex->PruneQueue |
| 27 | CheckAndSendPacketFromIndex->IsPacketAllowedForFlow |
| 28 | CheckAndSendPacketFromIndex->SendControlPacket[label="control pkt"] |
| 29 | SendControlPacket->bcm_cmd53 |
| 30 | CheckAndSendPacketFromIndex->SendPacketFromQueue[label="data pkt"] |
| 31 | SendPacketFromQueue->SetupNextSend->bcm_cmd53 |
| 32 | } |
| 33 | @enddot |
| 34 | */ |
| 35 | |
| 36 | #include "headers.h" |
| 37 | |
| 38 | /******************************************************************* |
| 39 | * Function - bcm_transmit() |
| 40 | * |
| 41 | * Description - This is the main transmit function for our virtual |
| 42 | * interface(veth0). It handles the ARP packets. It |
| 43 | * clones this packet and then Queue it to a suitable |
| 44 | * Queue. Then calls the transmit_packet(). |
| 45 | * |
| 46 | * Parameter - skb - Pointer to the socket buffer structure |
| 47 | * dev - Pointer to the virtual net device structure |
| 48 | * |
| 49 | * Returns - zero (success) or -ve value (failure) |
| 50 | * |
| 51 | *********************************************************************/ |
| 52 | |
| 53 | INT bcm_transmit(struct sk_buff *skb, /**< skb */ |
| 54 | struct net_device *dev /**< net device pointer */ |
| 55 | ) |
| 56 | { |
| 57 | PMINI_ADAPTER Adapter = NULL; |
| 58 | USHORT qindex=0; |
| 59 | struct timeval tv; |
| 60 | UINT pkt_type = 0; |
| 61 | UINT calltransmit = 0; |
| 62 | |
| 63 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, "\n%s====>\n",__FUNCTION__); |
| 64 | |
| 65 | memset(&tv, 0, sizeof(tv)); |
| 66 | /* Check for valid parameters */ |
| 67 | if(skb == NULL || dev==NULL) |
| 68 | { |
| 69 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX,TX_OSAL_DBG, DBG_LVL_ALL, "Got NULL skb or dev\n"); |
| 70 | return -EINVAL; |
| 71 | } |
| 72 | |
| 73 | Adapter = GET_BCM_ADAPTER(dev); |
| 74 | if(!Adapter) |
| 75 | { |
| 76 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, "Got Invalid Adapter\n"); |
| 77 | return -EINVAL; |
| 78 | } |
| 79 | if(Adapter->device_removed == TRUE || !Adapter->LinkUpStatus) |
| 80 | { |
| 81 | if(!netif_queue_stopped(dev)) { |
| 82 | netif_carrier_off(dev); |
| 83 | netif_stop_queue(dev); |
| 84 | } |
| 85 | return STATUS_FAILURE; |
| 86 | } |
| 87 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, "Packet size : %d\n", skb->len); |
| 88 | |
| 89 | /*Add Ethernet CS check here*/ |
| 90 | if(Adapter->TransferMode == IP_PACKET_ONLY_MODE ) |
| 91 | { |
| 92 | pkt_type = ntohs(*(PUSHORT)(skb->data + 12)); |
| 93 | /* Get the queue index where the packet is to be queued */ |
| 94 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, "Getting the Queue Index....."); |
| 95 | |
| 96 | qindex = GetPacketQueueIndex(Adapter,skb); |
| 97 | |
| 98 | if((SHORT)INVALID_QUEUE_INDEX==(SHORT)qindex) |
| 99 | { |
| 100 | if(pkt_type == ETH_ARP_FRAME) |
| 101 | { |
| 102 | /* |
| 103 | Reply directly to ARP request packet |
| 104 | ARP Spoofing only if NO ETH CS rule matches for it |
| 105 | */ |
| 106 | BCM_DEBUG_PRINT (Adapter,DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL,"ARP OPCODE = %02x", |
| 107 | |
| 108 | (*(PUCHAR)(skb->data + 21))); |
| 109 | |
| 110 | reply_to_arp_request(skb); |
| 111 | |
| 112 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX,TX_OSAL_DBG, DBG_LVL_ALL,"After reply_to_arp_request \n"); |
| 113 | |
| 114 | } |
| 115 | else |
| 116 | { |
| 117 | BCM_DEBUG_PRINT (Adapter, DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, |
| 118 | "Invalid queue index, dropping pkt\n"); |
| 119 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame^] | 120 | dev_kfree_skb(skb); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 121 | } |
| 122 | return STATUS_SUCCESS; |
| 123 | } |
| 124 | |
| 125 | if(Adapter->PackInfo[qindex].uiCurrentPacketsOnHost >= SF_MAX_ALLOWED_PACKETS_TO_BACKUP) |
| 126 | { |
| 127 | atomic_inc(&Adapter->TxDroppedPacketCount); |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame^] | 128 | dev_kfree_skb(skb); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 129 | return STATUS_SUCCESS; |
| 130 | } |
| 131 | |
| 132 | /* Now Enqueue the packet */ |
| 133 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "bcm_transmit Enqueueing the Packet To Queue %d",qindex); |
| 134 | spin_lock(&Adapter->PackInfo[qindex].SFQueueLock); |
| 135 | Adapter->PackInfo[qindex].uiCurrentBytesOnHost += skb->len; |
| 136 | Adapter->PackInfo[qindex].uiCurrentPacketsOnHost++; |
| 137 | |
| 138 | *((B_UINT32 *)skb->cb + SKB_CB_LATENCY_OFFSET ) = jiffies; |
| 139 | ENQUEUEPACKET(Adapter->PackInfo[qindex].FirstTxQueue, |
| 140 | Adapter->PackInfo[qindex].LastTxQueue, skb); |
| 141 | atomic_inc(&Adapter->TotalPacketCount); |
| 142 | spin_unlock(&Adapter->PackInfo[qindex].SFQueueLock); |
| 143 | do_gettimeofday(&tv); |
| 144 | |
| 145 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL,"ENQ: \n"); |
| 146 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, "Pkt Len = %d, sec: %ld, usec: %ld\n", |
| 147 | (skb->len-ETH_HLEN), tv.tv_sec, tv.tv_usec); |
| 148 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 149 | if(calltransmit == 1) |
| 150 | transmit_packets(Adapter); |
| 151 | else |
| 152 | { |
| 153 | if(!atomic_read(&Adapter->TxPktAvail)) |
| 154 | { |
| 155 | atomic_set(&Adapter->TxPktAvail, 1); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 156 | wake_up(&Adapter->tx_packet_wait_queue); |
| 157 | } |
| 158 | } |
| 159 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL, "<===="); |
| 160 | } |
| 161 | else |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame^] | 162 | dev_kfree_skb(skb); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 163 | |
| 164 | return STATUS_SUCCESS; |
| 165 | } |
| 166 | |
| 167 | |
| 168 | /** |
| 169 | @ingroup ctrl_pkt_functions |
| 170 | This function dispatches control packet to the h/w interface |
| 171 | @return zero(success) or -ve value(failure) |
| 172 | */ |
| 173 | INT SendControlPacket(PMINI_ADAPTER Adapter, /**<Logical Adapter*/ |
| 174 | char *pControlPacket/**<Control Packet*/ |
| 175 | ) |
| 176 | { |
| 177 | PLEADER PLeader = NULL; |
| 178 | struct timeval tv; |
| 179 | memset(&tv, 0, sizeof(tv)); |
| 180 | |
| 181 | |
| 182 | |
| 183 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "========>"); |
| 184 | |
| 185 | PLeader=(PLEADER)pControlPacket; |
| 186 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Tx"); |
| 187 | if(!pControlPacket || !Adapter) |
| 188 | { |
| 189 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Got NULL Control Packet or Adapter"); |
| 190 | return STATUS_FAILURE; |
| 191 | } |
| 192 | if((atomic_read( &Adapter->CurrNumFreeTxDesc ) < |
| 193 | ((PLeader->PLength-1)/MAX_DEVICE_DESC_SIZE)+1)) |
| 194 | { |
| 195 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "NO FREE DESCRIPTORS TO SEND CONTROL PACKET"); |
| 196 | if(Adapter->bcm_jiffies == 0) |
| 197 | { |
| 198 | Adapter->bcm_jiffies = jiffies; |
| 199 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "UPDATED TIME(hex): %lu", |
| 200 | Adapter->bcm_jiffies); |
| 201 | } |
| 202 | return STATUS_FAILURE; |
| 203 | } |
| 204 | |
| 205 | /* Update the netdevice statistics */ |
| 206 | /* Dump Packet */ |
| 207 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader Status: %x", PLeader->Status); |
| 208 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader VCID: %x",PLeader->Vcid); |
| 209 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader Length: %x",PLeader->PLength); |
| 210 | if(Adapter->device_removed) |
| 211 | return 0; |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 212 | Adapter->interface_transmit(Adapter->pvInterfaceAdapter, |
| 213 | pControlPacket, (PLeader->PLength + LEADER_SIZE)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 214 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 215 | atomic_dec(&Adapter->CurrNumFreeTxDesc); |
| 216 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "<========="); |
| 217 | return STATUS_SUCCESS; |
| 218 | } |
| 219 | static LEADER Leader={0}; |
| 220 | /** |
| 221 | @ingroup tx_functions |
| 222 | This function despatches the IP packets with the given vcid |
| 223 | to the target via the host h/w interface. |
| 224 | @return zero(success) or -ve value(failure) |
| 225 | */ |
| 226 | INT SetupNextSend(PMINI_ADAPTER Adapter, /**<Logical Adapter*/ |
| 227 | struct sk_buff *Packet, /**<data buffer*/ |
| 228 | USHORT Vcid) /**<VCID for this packet*/ |
| 229 | { |
| 230 | int status=0; |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 231 | BOOLEAN bHeaderSupressionEnabled = FALSE; |
| 232 | B_UINT16 uiClassifierRuleID; |
| 233 | int QueueIndex = NO_OF_QUEUES + 1; |
| 234 | |
| 235 | if(!Adapter || !Packet) |
| 236 | { |
| 237 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "Got NULL Adapter or Packet"); |
| 238 | return -EINVAL; |
| 239 | } |
| 240 | if(Packet->len > MAX_DEVICE_DESC_SIZE) |
| 241 | { |
| 242 | status = STATUS_FAILURE; |
| 243 | goto errExit; |
| 244 | } |
| 245 | |
| 246 | /* Get the Classifier Rule ID */ |
| 247 | uiClassifierRuleID = *((UINT32*) (Packet->cb)+SKB_CB_CLASSIFICATION_OFFSET); |
| 248 | QueueIndex = SearchVcid( Adapter,Vcid); |
| 249 | if(QueueIndex < NO_OF_QUEUES) |
| 250 | { |
| 251 | bHeaderSupressionEnabled = |
| 252 | Adapter->PackInfo[QueueIndex].bHeaderSuppressionEnabled; |
| 253 | bHeaderSupressionEnabled = |
| 254 | bHeaderSupressionEnabled & Adapter->bPHSEnabled; |
| 255 | } |
| 256 | if(Adapter->device_removed) |
| 257 | { |
| 258 | status = STATUS_FAILURE; |
| 259 | goto errExit; |
| 260 | } |
| 261 | |
| 262 | status = PHSTransmit(Adapter, &Packet, Vcid, uiClassifierRuleID, bHeaderSupressionEnabled, |
| 263 | (UINT *)&Packet->len, Adapter->PackInfo[QueueIndex].bEthCSSupport); |
| 264 | |
| 265 | if(status != STATUS_SUCCESS) |
| 266 | { |
| 267 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "PHS Transmit failed..\n"); |
| 268 | goto errExit; |
| 269 | } |
| 270 | |
| 271 | Leader.Vcid = Vcid; |
| 272 | |
| 273 | if(TCP_ACK == *((UINT32*) (Packet->cb) + SKB_CB_TCPACK_OFFSET )) |
| 274 | { |
| 275 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "Sending TCP ACK\n"); |
| 276 | Leader.Status = LEADER_STATUS_TCP_ACK; |
| 277 | } |
| 278 | else |
| 279 | { |
| 280 | Leader.Status = LEADER_STATUS; |
| 281 | } |
| 282 | |
| 283 | if(Adapter->PackInfo[QueueIndex].bEthCSSupport) |
| 284 | { |
| 285 | Leader.PLength = Packet->len; |
| 286 | if(skb_headroom(Packet) < LEADER_SIZE) |
| 287 | { |
| 288 | if((status = skb_cow(Packet,LEADER_SIZE))) |
| 289 | { |
| 290 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL,"bcm_transmit : Failed To Increase headRoom\n"); |
| 291 | goto errExit; |
| 292 | } |
| 293 | } |
| 294 | skb_push(Packet, LEADER_SIZE); |
| 295 | memcpy(Packet->data, &Leader, LEADER_SIZE); |
| 296 | } |
| 297 | |
| 298 | else |
| 299 | { |
| 300 | Leader.PLength = Packet->len - ETH_HLEN; |
| 301 | memcpy((LEADER*)skb_pull(Packet, (ETH_HLEN - LEADER_SIZE)), &Leader, LEADER_SIZE); |
| 302 | } |
| 303 | |
| 304 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "Packet->len = %d", Packet->len); |
| 305 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "Vcid = %d", Vcid); |
| 306 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 307 | status = Adapter->interface_transmit(Adapter->pvInterfaceAdapter, |
| 308 | Packet->data, (Leader.PLength + LEADER_SIZE)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 309 | if(status) |
| 310 | { |
| 311 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "Tx Failed..\n"); |
| 312 | } |
| 313 | else |
| 314 | { |
| 315 | Adapter->PackInfo[QueueIndex].uiTotalTxBytes += Leader.PLength; |
| 316 | atomic_add(Leader.PLength, &Adapter->GoodTxByteCount); |
| 317 | atomic_inc(&Adapter->TxTotalPacketCount); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | atomic_dec(&Adapter->CurrNumFreeTxDesc); |
| 321 | |
| 322 | errExit: |
| 323 | |
| 324 | if(STATUS_SUCCESS == status) |
| 325 | { |
| 326 | Adapter->PackInfo[QueueIndex].uiCurrentTokenCount -= Leader.PLength << 3; |
| 327 | Adapter->PackInfo[QueueIndex].uiSentBytes += (Packet->len); |
| 328 | Adapter->PackInfo[QueueIndex].uiSentPackets++; |
| 329 | Adapter->PackInfo[QueueIndex].NumOfPacketsSent++; |
| 330 | |
| 331 | atomic_dec(&Adapter->PackInfo[QueueIndex].uiPerSFTxResourceCount); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 332 | Adapter->PackInfo[QueueIndex].uiThisPeriodSentBytes += Leader.PLength; |
| 333 | } |
| 334 | |
| 335 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame^] | 336 | dev_kfree_skb(Packet); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 337 | return status; |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | @ingroup tx_functions |
| 342 | Transmit thread |
| 343 | */ |
| 344 | int tx_pkt_handler(PMINI_ADAPTER Adapter /**< pointer to adapter object*/ |
| 345 | ) |
| 346 | { |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 347 | int status = 0; |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 348 | |
| 349 | UINT calltransmit = 1; |
Arnd Bergmann | 9f1c75a | 2010-09-30 10:24:11 +0200 | [diff] [blame] | 350 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Entring to wait for signal from the interrupt service thread!Adapter = %p",Adapter); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 351 | |
| 352 | |
| 353 | while(1) |
| 354 | { |
| 355 | if(Adapter->LinkUpStatus){ |
| 356 | wait_event_timeout(Adapter->tx_packet_wait_queue, |
| 357 | ((atomic_read(&Adapter->TxPktAvail) && |
| 358 | (MINIMUM_PENDING_DESCRIPTORS < |
| 359 | atomic_read(&Adapter->CurrNumFreeTxDesc)) && |
| 360 | (Adapter->device_removed == FALSE))) || |
| 361 | (1 == Adapter->downloadDDR) || kthread_should_stop() |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 362 | || (TRUE == Adapter->bEndPointHalted) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 363 | , msecs_to_jiffies(10)); |
| 364 | } |
| 365 | else{ |
| 366 | wait_event(Adapter->tx_packet_wait_queue, |
| 367 | ((atomic_read(&Adapter->TxPktAvail) && |
| 368 | (MINIMUM_PENDING_DESCRIPTORS < |
| 369 | atomic_read(&Adapter->CurrNumFreeTxDesc)) && |
| 370 | (Adapter->device_removed == FALSE))) || |
| 371 | (1 == Adapter->downloadDDR) || kthread_should_stop() |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 372 | || (TRUE == Adapter->bEndPointHalted) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 373 | ); |
| 374 | } |
| 375 | |
| 376 | if(kthread_should_stop() || Adapter->device_removed) |
| 377 | { |
| 378 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Exiting the tx thread..\n"); |
| 379 | Adapter->transmit_packet_thread = NULL; |
| 380 | return 0; |
| 381 | } |
| 382 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 383 | |
| 384 | if(Adapter->downloadDDR == 1) |
| 385 | { |
| 386 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Downloading DDR Settings\n"); |
| 387 | Adapter->downloadDDR +=1; |
| 388 | status = download_ddr_settings(Adapter); |
| 389 | if(status) |
| 390 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "DDR DOWNLOAD FAILED!\n"); |
| 391 | continue; |
| 392 | } |
| 393 | |
| 394 | //Check end point for halt/stall. |
| 395 | if(Adapter->bEndPointHalted == TRUE) |
| 396 | { |
| 397 | Bcm_clear_halt_of_endpoints(Adapter); |
| 398 | Adapter->bEndPointHalted = FALSE; |
| 399 | StartInterruptUrb((PS_INTERFACE_ADAPTER)(Adapter->pvInterfaceAdapter)); |
| 400 | } |
| 401 | |
| 402 | if(Adapter->LinkUpStatus && !Adapter->IdleMode) |
| 403 | { |
| 404 | if(atomic_read(&Adapter->TotalPacketCount)) |
| 405 | { |
| 406 | update_per_sf_desc_cnts(Adapter); |
| 407 | } |
| 408 | } |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 409 | |
| 410 | if( atomic_read(&Adapter->CurrNumFreeTxDesc) && |
| 411 | Adapter->LinkStatus == SYNC_UP_REQUEST && |
| 412 | !Adapter->bSyncUpRequestSent) |
| 413 | { |
| 414 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Calling LinkMessage"); |
| 415 | LinkMessage(Adapter); |
| 416 | } |
| 417 | |
| 418 | if((Adapter->IdleMode || Adapter->bShutStatus) && atomic_read(&Adapter->TotalPacketCount)) |
| 419 | { |
| 420 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Device in Low Power mode...waking up"); |
| 421 | Adapter->usIdleModePattern = ABORT_IDLE_MODE; |
| 422 | Adapter->bWakeUpDevice = TRUE; |
| 423 | wake_up(&Adapter->process_rx_cntrlpkt); |
| 424 | } |
| 425 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 426 | |
| 427 | if(calltransmit) |
| 428 | transmit_packets(Adapter); |
| 429 | |
| 430 | atomic_set(&Adapter->TxPktAvail, 0); |
| 431 | } |
| 432 | return 0; |
| 433 | } |
| 434 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 435 | |
| 436 | |