diff options
author | Stephen Hemminger <stephen.hemminger@vyatta.com> | 2010-11-01 03:55:21 (GMT) |
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committer | Stephen Hemminger <stephen.hemminger@vyatta.com> | 2010-11-01 13:54:39 (GMT) |
commit | 937110581650eaa517f045fb7b86b9828ba693ad (patch) | |
tree | b8be23c9b91392287e9179b0b97c071bb3cb97c8 /drivers/staging/bcm/Transmit.c | |
parent | 20f48653fcf51f6d1246b5f3f86b40ed779385b2 (diff) | |
download | linux-fsl-qoriq-937110581650eaa517f045fb7b86b9828ba693ad.tar.xz |
beceem: support multiple queues
Current kernels have multi-queue support which can be used by
this device. This has the advantage that a single type of traffic
will not block other types.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Diffstat (limited to 'drivers/staging/bcm/Transmit.c')
-rw-r--r-- | drivers/staging/bcm/Transmit.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/drivers/staging/bcm/Transmit.c b/drivers/staging/bcm/Transmit.c index 4b94d82..734bbbd 100644 --- a/drivers/staging/bcm/Transmit.c +++ b/drivers/staging/bcm/Transmit.c @@ -35,67 +35,6 @@ SendPacketFromQueue->SetupNextSend->bcm_cmd53 #include "headers.h" -/******************************************************************* -* Function - bcm_transmit() -* -* Description - This is the main transmit function for our virtual -* interface(eth0). It handles the ARP packets. It -* clones this packet and then Queue it to a suitable -* Queue. Then calls the transmit_packet(). -* -* Parameter - skb - Pointer to the socket buffer structure -* dev - Pointer to the virtual net device structure -* -* Returns - zero (success) or -ve value (failure) -* -*********************************************************************/ - -netdev_tx_t bcm_transmit(struct sk_buff *skb, struct net_device *dev) -{ - PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(dev); - SHORT qindex; - - if (Adapter->device_removed || !Adapter->LinkUpStatus) - goto drop; - - if (Adapter->TransferMode != IP_PACKET_ONLY_MODE ) - goto drop; - - qindex = GetPacketQueueIndex(Adapter, skb); - - if (INVALID_QUEUE_INDEX==qindex) - goto drop; - - if (Adapter->PackInfo[qindex].uiCurrentPacketsOnHost >= SF_MAX_ALLOWED_PACKETS_TO_BACKUP) - return NETDEV_TX_BUSY; - - /* Now Enqueue the packet */ - BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, - "bcm_transmit Enqueueing the Packet To Queue %d",qindex); - spin_lock(&Adapter->PackInfo[qindex].SFQueueLock); - Adapter->PackInfo[qindex].uiCurrentBytesOnHost += skb->len; - Adapter->PackInfo[qindex].uiCurrentPacketsOnHost++; - - *((B_UINT32 *)skb->cb + SKB_CB_LATENCY_OFFSET ) = jiffies; - ENQUEUEPACKET(Adapter->PackInfo[qindex].FirstTxQueue, - Adapter->PackInfo[qindex].LastTxQueue, skb); - atomic_inc(&Adapter->TotalPacketCount); - spin_unlock(&Adapter->PackInfo[qindex].SFQueueLock); - - BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_OSAL_DBG, DBG_LVL_ALL,"ENQ: \n"); - - /* FIXME - this is racy and incorrect, replace with work queue */ - if (!atomic_read(&Adapter->TxPktAvail)) { - atomic_set(&Adapter->TxPktAvail, 1); - wake_up(&Adapter->tx_packet_wait_queue); - } - return NETDEV_TX_OK; - - drop: - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - /** @ingroup ctrl_pkt_functions |