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Staging: et131x: Remove old SendWaitQueue code

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The Linux driver doesn't keep a pending queue as the old one did. so we can
remove all the code related to it.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2009-10-06 15:49:21 +01:00 committed by Greg Kroah-Hartman
parent f432c55e14
commit 116badfe08
4 changed files with 4 additions and 54 deletions
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52
drivers/staging/et131x/et1310_tx.c
View File

@ -95,7 +95,6 @@
static void et131x_update_tcb_list(struct et131x_adapter *etdev);
static void et131x_check_send_wait_list(struct et131x_adapter *etdev);
static inline void et131x_free_send_packet(struct et131x_adapter *etdev,
struct tcb *tcb);
static int et131x_send_packet(struct sk_buff *skb,
@ -310,8 +309,6 @@ void et131x_init_send(struct et131x_adapter *adapter)
/* Curr send queue should now be empty */
tx_ring->CurrSendHead = NULL;
tx_ring->CurrSendTail = NULL;
INIT_LIST_HEAD(&adapter->tx_ring.SendWaitQueue);
}
/**
@ -334,9 +331,8 @@ int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev)
* to Tx, so the PacketCount and it's array used makes no sense here
*/
/* Queue is not empty or TCB is not available */
if (!list_empty(&etdev->tx_ring.SendWaitQueue) ||
MP_TCB_RESOURCES_NOT_AVAILABLE(etdev)) {
/* TCB is not available */
if (MP_TCB_RESOURCES_NOT_AVAILABLE(etdev)) {
/* NOTE: If there's an error on send, no need to queue the
* packet under Linux; if we just send an error up to the
* netif layer, it will resend the skb to us.
@ -392,7 +388,7 @@ static int et131x_send_packet(struct sk_buff *skb,
{
int status = 0;
struct tcb *tcb = NULL;
uint16_t *shbufva;
u16 *shbufva;
unsigned long flags;
/* All packets must have at least a MAC address and a protocol type */
@ -420,7 +416,7 @@ static int et131x_send_packet(struct sk_buff *skb,
tcb->Packet = skb;
if ((skb->data != NULL) && ((skb->len - skb->data_len) >= 6)) {
shbufva = (uint16_t *) skb->data;
shbufva = (u16 *) skb->data;
if ((shbufva[0] == 0xffff) &&
(shbufva[1] == 0xffff) && (shbufva[2] == 0xffff)) {
@ -755,17 +751,6 @@ void et131x_free_busy_send_packets(struct et131x_adapter *etdev)
unsigned long flags;
u32 freed = 0;
while (!list_empty(&etdev->tx_ring.SendWaitQueue)) {
spin_lock_irqsave(&etdev->SendWaitLock, flags);
etdev->tx_ring.nWaitSend--;
spin_unlock_irqrestore(&etdev->SendWaitLock, flags);
entry = etdev->tx_ring.SendWaitQueue.next;
}
etdev->tx_ring.nWaitSend = 0;
/* Any packets being sent? Check the first TCB on the send list */
spin_lock_irqsave(&etdev->TCBSendQLock, flags);
@ -811,11 +796,6 @@ void et131x_handle_send_interrupt(struct et131x_adapter *etdev)
{
/* Mark as completed any packets which have been sent by the device. */
et131x_update_tcb_list(etdev);
/* If we queued any transmits because we didn't have any TCBs earlier,
* dequeue and send those packets now, as long as we have free TCBs.
*/
et131x_check_send_wait_list(etdev);
}
/**
@ -881,27 +861,3 @@ static void et131x_update_tcb_list(struct et131x_adapter *etdev)
spin_unlock_irqrestore(&etdev->TCBSendQLock, flags);
}
/**
* et131x_check_send_wait_list - Helper routine for the interrupt handler
* @etdev: pointer to our adapter
*
* Takes packets from the send wait queue and posts them to the device (if
* room available).
*/
static void et131x_check_send_wait_list(struct et131x_adapter *etdev)
{
unsigned long flags;
spin_lock_irqsave(&etdev->SendWaitLock, flags);
while (!list_empty(&etdev->tx_ring.SendWaitQueue) &&
MP_TCB_RESOURCES_AVAILABLE(etdev)) {
struct list_head *entry;
entry = etdev->tx_ring.SendWaitQueue.next;
etdev->tx_ring.nWaitSend--;
}
spin_unlock_irqrestore(&etdev->SendWaitLock, flags);
}

4
drivers/staging/et131x/et1310_tx.h
View File

@ -155,10 +155,6 @@ struct tx_ring {
struct tcb *CurrSendTail;
int nBusySend;
/* List of packets (not TCBs) that were queued for lack of resources */
struct list_head SendWaitQueue;
int nWaitSend;
/* The actual descriptor ring */
struct tx_desc *tx_desc_ring;
dma_addr_t tx_desc_ring_pa;

1
drivers/staging/et131x/et131x_adapter.h
View File

@ -203,7 +203,6 @@ struct et131x_adapter {
spinlock_t TCBSendQLock;
spinlock_t TCBReadyQLock;
spinlock_t SendHWLock;
spinlock_t SendWaitLock;
spinlock_t RcvLock;
spinlock_t RcvPendLock;

1
drivers/staging/et131x/et131x_initpci.c
View File

@ -555,7 +555,6 @@ static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
spin_lock_init(&etdev->TCBSendQLock);
spin_lock_init(&etdev->TCBReadyQLock);
spin_lock_init(&etdev->SendHWLock);
spin_lock_init(&etdev->SendWaitLock);
spin_lock_init(&etdev->RcvLock);
spin_lock_init(&etdev->RcvPendLock);
spin_lock_init(&etdev->FbrLock);