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path: root/drivers/staging/bcm/InterfaceRx.c
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Diffstat (limited to 'drivers/staging/bcm/InterfaceRx.c')
-rw-r--r--drivers/staging/bcm/InterfaceRx.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/drivers/staging/bcm/InterfaceRx.c b/drivers/staging/bcm/InterfaceRx.c
deleted file mode 100644
index 0f179b9382d3..000000000000
--- a/drivers/staging/bcm/InterfaceRx.c
+++ /dev/null
@@ -1,289 +0,0 @@
-#include "headers.h"
-
-static void handle_control_packet(struct bcm_interface_adapter *interface,
- struct bcm_mini_adapter *ad,
- struct bcm_leader *leader,
- struct sk_buff *skb,
- struct urb *urb)
-{
- BCM_DEBUG_PRINT(interface->psAdapter, DBG_TYPE_RX, RX_CTRL, DBG_LVL_ALL,
- "Received control pkt...");
- *(PUSHORT)skb->data = leader->Status;
- memcpy(skb->data+sizeof(USHORT), urb->transfer_buffer +
- (sizeof(struct bcm_leader)), leader->PLength);
- skb->len = leader->PLength + sizeof(USHORT);
-
- spin_lock(&ad->control_queue_lock);
- ENQUEUEPACKET(ad->RxControlHead, ad->RxControlTail, skb);
- spin_unlock(&ad->control_queue_lock);
-
- atomic_inc(&ad->cntrlpktCnt);
- wake_up(&ad->process_rx_cntrlpkt);
-}
-
-static void format_eth_hdr_to_stack(struct bcm_interface_adapter *interface,
- struct bcm_mini_adapter *ad,
- struct bcm_leader *p_leader,
- struct sk_buff *skb,
- struct urb *urb,
- UINT ui_index,
- int queue_index,
- bool b_header_supression_endabled)
-{
- /*
- * Data Packet, Format a proper Ethernet Header
- * and give it to the stack
- */
- BCM_DEBUG_PRINT(interface->psAdapter, DBG_TYPE_RX, RX_DATA,
- DBG_LVL_ALL, "Received Data pkt...");
- skb_reserve(skb, 2 + SKB_RESERVE_PHS_BYTES);
- memcpy(skb->data+ETH_HLEN, (PUCHAR)urb->transfer_buffer +
- sizeof(struct bcm_leader), p_leader->PLength);
- skb->dev = ad->dev;
-
- /* currently skb->len has extra ETH_HLEN bytes in the beginning */
- skb_put(skb, p_leader->PLength + ETH_HLEN);
- ad->PackInfo[queue_index].uiTotalRxBytes += p_leader->PLength;
- ad->PackInfo[queue_index].uiThisPeriodRxBytes += p_leader->PLength;
- BCM_DEBUG_PRINT(interface->psAdapter, DBG_TYPE_RX, RX_DATA,
- DBG_LVL_ALL, "Received Data pkt of len :0x%X",
- p_leader->PLength);
-
- if (netif_running(ad->dev)) {
- /* Moving ahead by ETH_HLEN to the data ptr as received from FW */
- skb_pull(skb, ETH_HLEN);
- PHSReceive(ad, p_leader->Vcid, skb, &skb->len,
- NULL, b_header_supression_endabled);
-
- if (!ad->PackInfo[queue_index].bEthCSSupport) {
- skb_push(skb, ETH_HLEN);
-
- memcpy(skb->data, skb->dev->dev_addr, 6);
- memcpy(skb->data+6, skb->dev->dev_addr, 6);
- (*(skb->data+11))++;
- *(skb->data+12) = 0x08;
- *(skb->data+13) = 0x00;
- p_leader->PLength += ETH_HLEN;
- }
-
- skb->protocol = eth_type_trans(skb, ad->dev);
- netif_rx(skb);
- } else {
- BCM_DEBUG_PRINT(interface->psAdapter, DBG_TYPE_RX,
- RX_DATA, DBG_LVL_ALL,
- "i/f not up hance freeing SKB...");
- dev_kfree_skb(skb);
- }
-
- ++ad->dev->stats.rx_packets;
- ad->dev->stats.rx_bytes += p_leader->PLength;
-
- for (ui_index = 0; ui_index < MIBS_MAX_HIST_ENTRIES; ui_index++) {
- if ((p_leader->PLength <=
- MIBS_PKTSIZEHIST_RANGE*(ui_index+1)) &&
- (p_leader->PLength > MIBS_PKTSIZEHIST_RANGE*(ui_index)))
-
- ad->aRxPktSizeHist[ui_index]++;
- }
-}
-
-static int SearchVcid(struct bcm_mini_adapter *Adapter, unsigned short usVcid)
-{
- int iIndex = 0;
-
- for (iIndex = (NO_OF_QUEUES-1); iIndex >= 0; iIndex--)
- if (Adapter->PackInfo[iIndex].usVCID_Value == usVcid)
- return iIndex;
- return NO_OF_QUEUES+1;
-
-}
-
-
-static struct bcm_usb_rcb *
-GetBulkInRcb(struct bcm_interface_adapter *psIntfAdapter)
-{
- struct bcm_usb_rcb *pRcb = NULL;
- UINT index = 0;
-
- if ((atomic_read(&psIntfAdapter->uNumRcbUsed) < MAXIMUM_USB_RCB) &&
- (psIntfAdapter->psAdapter->StopAllXaction == false)) {
- index = atomic_read(&psIntfAdapter->uCurrRcb);
- pRcb = &psIntfAdapter->asUsbRcb[index];
- pRcb->bUsed = TRUE;
- pRcb->psIntfAdapter = psIntfAdapter;
- BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_RX, RX_DPC,
- DBG_LVL_ALL, "Got Rx desc %d used %d", index,
- atomic_read(&psIntfAdapter->uNumRcbUsed));
- index = (index + 1) % MAXIMUM_USB_RCB;
- atomic_set(&psIntfAdapter->uCurrRcb, index);
- atomic_inc(&psIntfAdapter->uNumRcbUsed);
- }
- return pRcb;
-}
-
-/*this is receive call back - when pkt available for receive (BULK IN- end point)*/
-static void read_bulk_callback(struct urb *urb)
-{
- struct sk_buff *skb = NULL;
- bool bHeaderSupressionEnabled = false;
- int QueueIndex = NO_OF_QUEUES + 1;
- UINT uiIndex = 0;
- struct bcm_usb_rcb *pRcb = (struct bcm_usb_rcb *)urb->context;
- struct bcm_interface_adapter *psIntfAdapter = pRcb->psIntfAdapter;
- struct bcm_mini_adapter *Adapter = psIntfAdapter->psAdapter;
- struct bcm_leader *pLeader = urb->transfer_buffer;
-
- if (unlikely(netif_msg_rx_status(Adapter)))
- pr_info(PFX "%s: rx urb status %d length %d\n",
- Adapter->dev->name, urb->status, urb->actual_length);
-
- if ((Adapter->device_removed == TRUE) ||
- (TRUE == Adapter->bEndPointHalted) ||
- (0 == urb->actual_length)) {
- pRcb->bUsed = false;
- atomic_dec(&psIntfAdapter->uNumRcbUsed);
- return;
- }
-
- if (urb->status != STATUS_SUCCESS) {
- if (urb->status == -EPIPE) {
- Adapter->bEndPointHalted = TRUE;
- wake_up(&Adapter->tx_packet_wait_queue);
- } else {
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_RX, RX_DPC,
- DBG_LVL_ALL,
- "Rx URB has got cancelled. status :%d",
- urb->status);
- }
- pRcb->bUsed = false;
- atomic_dec(&psIntfAdapter->uNumRcbUsed);
- urb->status = STATUS_SUCCESS;
- return;
- }
-
- if (Adapter->bDoSuspend && (Adapter->bPreparingForLowPowerMode)) {
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_RX, RX_DPC, DBG_LVL_ALL,
- "device is going in low power mode while PMU option selected..hence rx packet should not be process");
- return;
- }
-
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_RX, RX_DPC, DBG_LVL_ALL,
- "Read back done len %d\n", pLeader->PLength);
- if (!pLeader->PLength) {
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_RX, RX_DPC, DBG_LVL_ALL,
- "Leader Length 0");
- atomic_dec(&psIntfAdapter->uNumRcbUsed);
- return;
- }
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_RX, RX_DPC, DBG_LVL_ALL,
- "Leader Status:0x%hX, Length:0x%hX, VCID:0x%hX",
- pLeader->Status, pLeader->PLength, pLeader->Vcid);
- if (MAX_CNTL_PKT_SIZE < pLeader->PLength) {
- if (netif_msg_rx_err(Adapter))
- pr_info(PFX "%s: corrupted leader length...%d\n",
- Adapter->dev->name, pLeader->PLength);
- ++Adapter->dev->stats.rx_dropped;
- atomic_dec(&psIntfAdapter->uNumRcbUsed);
- return;
- }
-
- QueueIndex = SearchVcid(Adapter, pLeader->Vcid);
- if (QueueIndex < NO_OF_QUEUES) {
- bHeaderSupressionEnabled =
- Adapter->PackInfo[QueueIndex].bHeaderSuppressionEnabled;
- bHeaderSupressionEnabled =
- bHeaderSupressionEnabled & Adapter->bPHSEnabled;
- }
-
- skb = dev_alloc_skb(pLeader->PLength + SKB_RESERVE_PHS_BYTES +
- SKB_RESERVE_ETHERNET_HEADER);
- if (!skb) {
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
- "NO SKBUFF!!! Dropping the Packet");
- atomic_dec(&psIntfAdapter->uNumRcbUsed);
- return;
- }
- /* If it is a control Packet, then call handle_bcm_packet ()*/
- if ((ntohs(pLeader->Vcid) == VCID_CONTROL_PACKET) ||
- (!(pLeader->Status >= 0x20 && pLeader->Status <= 0x3F))) {
- handle_control_packet(psIntfAdapter, Adapter, pLeader, skb,
- urb);
- } else {
- format_eth_hdr_to_stack(psIntfAdapter, Adapter, pLeader, skb,
- urb, uiIndex, QueueIndex,
- bHeaderSupressionEnabled);
- }
- Adapter->PrevNumRecvDescs++;
- pRcb->bUsed = false;
- atomic_dec(&psIntfAdapter->uNumRcbUsed);
-}
-
-static int ReceiveRcb(struct bcm_interface_adapter *psIntfAdapter,
- struct bcm_usb_rcb *pRcb)
-{
- struct urb *urb = pRcb->urb;
- int retval = 0;
-
- usb_fill_bulk_urb(urb, psIntfAdapter->udev,
- usb_rcvbulkpipe(psIntfAdapter->udev,
- psIntfAdapter->sBulkIn.bulk_in_endpointAddr),
- urb->transfer_buffer,
- BCM_USB_MAX_READ_LENGTH,
- read_bulk_callback, pRcb);
-
- if (false == psIntfAdapter->psAdapter->device_removed &&
- false == psIntfAdapter->psAdapter->bEndPointHalted &&
- false == psIntfAdapter->bSuspended &&
- false == psIntfAdapter->bPreparingForBusSuspend) {
- retval = usb_submit_urb(urb, GFP_ATOMIC);
- if (retval) {
- BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_RX,
- RX_DPC, DBG_LVL_ALL,
- "failed submitting read urb, error %d",
- retval);
- /* if this return value is because of pipe halt. need to clear this. */
- if (retval == -EPIPE) {
- psIntfAdapter->psAdapter->bEndPointHalted = TRUE;
- wake_up(&psIntfAdapter->psAdapter->tx_packet_wait_queue);
- }
-
- }
- }
- return retval;
-}
-
-/*
-Function: InterfaceRx
-
-Description: This is the hardware specific Function for Receiving
- data packet/control packets from the device.
-
-Input parameters: IN struct bcm_mini_adapter *Adapter - Miniport Adapter Context
-
-
-
-Return: TRUE - If Rx was successful.
- Other - If an error occurred.
-*/
-
-bool InterfaceRx(struct bcm_interface_adapter *psIntfAdapter)
-{
- USHORT RxDescCount = NUM_RX_DESC -
- atomic_read(&psIntfAdapter->uNumRcbUsed);
-
- struct bcm_usb_rcb *pRcb = NULL;
-
- while (RxDescCount) {
- pRcb = GetBulkInRcb(psIntfAdapter);
- if (pRcb == NULL) {
- BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
- DBG_TYPE_PRINTK, 0, 0,
- "Unable to get Rcb pointer");
- return false;
- }
- ReceiveRcb(psIntfAdapter, pRcb);
- RxDescCount--;
- }
- return TRUE;
-}
-
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