aboutsummaryrefslogtreecommitdiffstats
path: root/target
diff options
context:
space:
mode:
Diffstat (limited to 'target')
-rw-r--r--target/linux/rb532/files-2.6.24/drivers/net/korina.c84
1 files changed, 37 insertions, 47 deletions
diff --git a/target/linux/rb532/files-2.6.24/drivers/net/korina.c b/target/linux/rb532/files-2.6.24/drivers/net/korina.c
index 9dee6d4b02..96b2ffe0eb 100644
--- a/target/linux/rb532/files-2.6.24/drivers/net/korina.c
+++ b/target/linux/rb532/files-2.6.24/drivers/net/korina.c
@@ -627,15 +627,13 @@ rc32434_rx_dma_interrupt(int irq, void *dev_id)
lp = (struct rc32434_local *)dev->priv;
- spin_lock(&lp->lock);
dmas = __raw_readl(&lp->rx_dma_regs->dmas);
if(dmas & (DMAS_d_m|DMAS_h_m|DMAS_e_m)) {
/* Mask D H E bit in Rx DMA */
dmasm = __raw_readl(&lp->rx_dma_regs->dmasm);
__raw_writel(dmasm | (DMASM_d_m | DMASM_h_m | DMASM_e_m), &lp->rx_dma_regs->dmasm);
+ netif_rx_schedule(dev, &lp->napi);
- netif_rx_schedule_prep(dev, &lp->napi);
-
if (dmas & DMAS_e_m)
ERR(": DMA error\n");
@@ -644,39 +642,29 @@ rc32434_rx_dma_interrupt(int irq, void *dev_id)
else
retval = IRQ_NONE;
- spin_unlock(&lp->lock);
return retval;
}
-static int rc32434_poll(struct napi_struct *napi, int budget)
+
+static int rc32434_rx(struct net_device *dev, int limit)
{
- struct rc32434_local* lp = container_of(napi, struct rc32434_local, napi);
- struct net_device *dev = lp->dev;
+ struct rc32434_local *lp = netdev_priv(dev);
volatile DMAD_t rd = &lp->rd_ring[lp->rx_next_done];
- struct sk_buff *skb, *skb_new;
- u8* pkt_buf;
- u32 devcs, count, pkt_len, pktuncrc_len;
- volatile u32 dmas;
- u32 received = 0;
- int rx_work_limit = min(budget, 64);
+ struct sk_buff *skb, *skb_new;
+ u8 *pkt_buf;
+ u32 devcs, pkt_len, dmas, rx_free_desc;
+ u32 pktuncrc_len;
+ int count;
dma_cache_inv((u32)rd, sizeof(*rd));
- while ( (count = RC32434_RBSIZE - (u32)DMA_COUNT(rd->control)) != 0) {
- if(--rx_work_limit <0)
- {
- break;
- }
+ for (count = 0; count < limit; count++) {
/* init the var. used for the later operations within the while loop */
skb_new = NULL;
devcs = rd->devcs;
pkt_len = RCVPKT_LENGTH(devcs);
skb = lp->rx_skb[lp->rx_next_done];
- if (count < 64) {
- lp->stats.rx_errors++;
- lp->stats.rx_dropped++;
- }
- else if ((devcs & ( ETHRX_ld_m)) != ETHRX_ld_m) {
+ if ((devcs & ( ETHRX_ld_m)) != ETHRX_ld_m) {
/* check that this is a whole packet */
/* WARNING: DMA_FD bit incorrectly set in Rc32434 (errata ref #077) */
lp->stats.rx_errors++;
@@ -684,7 +672,6 @@ static int rc32434_poll(struct napi_struct *napi, int budget)
}
else if ( (devcs & ETHRX_rok_m) ) {
- {
/* must be the (first and) last descriptor then */
pkt_buf = (u8*)lp->rx_skb[lp->rx_next_done]->data;
@@ -693,7 +680,7 @@ static int rc32434_poll(struct napi_struct *napi, int budget)
dma_cache_inv((unsigned long)pkt_buf, pktuncrc_len);
/* Malloc up new buffer. */
- skb_new = dev_alloc_skb(RC32434_RBSIZE + 2);
+ skb_new = netdev_alloc_skb(dev, RC32434_RBSIZE + 2);
if (skb_new != NULL){
/* Make room */
@@ -722,8 +709,6 @@ static int rc32434_poll(struct napi_struct *napi, int budget)
lp->stats.rx_errors++;
lp->stats.rx_dropped++;
}
- }
-
}
else {
/* This should only happen if we enable accepting broken packets */
@@ -755,12 +740,12 @@ static int rc32434_poll(struct napi_struct *napi, int budget)
DBG(2, "RX Preamble error\n");
}
}
-
rd->devcs = 0;
/* restore descriptor's curr_addr */
- if(skb_new)
- rd->ca = CPHYSADDR(skb_new->data);
+ if(skb_new) {
+ rd->ca = CPHYSADDR(skb_new->data);
+ }
else
rd->ca = CPHYSADDR(skb->data);
@@ -772,13 +757,11 @@ static int rc32434_poll(struct napi_struct *napi, int budget)
rd = &lp->rd_ring[lp->rx_next_done];
__raw_writel( ~DMAS_d_m, &lp->rx_dma_regs->dmas);
}
- budget =- received;
- if(rx_work_limit < 0)
- goto not_done;
dmas = __raw_readl(&lp->rx_dma_regs->dmas);
if(dmas & DMAS_h_m) {
+ /* Mask off halt and error bits */
__raw_writel( ~(DMAS_h_m | DMAS_e_m), &lp->rx_dma_regs->dmas);
#ifdef RC32434_PROC_DEBUG
lp->dma_halt_cnt++;
@@ -790,13 +773,27 @@ static int rc32434_poll(struct napi_struct *napi, int budget)
rc32434_chain_rx(lp,rd);
}
- netif_rx_complete(dev, &lp->napi);
- /* Enable D H E bit in Rx DMA */
- __raw_writel(__raw_readl(&lp->rx_dma_regs->dmasm) & ~(DMASM_d_m | DMASM_h_m |DMASM_e_m), &lp->rx_dma_regs->dmasm);
- return 0;
- not_done:
- return 1;
-}
+ return count;
+}
+
+static int rc32434_poll(struct napi_struct *napi, int budget)
+{
+ struct rc32434_local *lp =
+ container_of(napi, struct rc32434_local, napi);
+ struct net_device *dev = lp->dev;
+ int work_done;
+
+ work_done = rc32434_rx(dev, budget);
+ if (work_done < budget) {
+ netif_rx_complete(dev, napi);
+
+ /* Mask off interrupts */
+ writel(readl(&lp->rx_dma_regs->dmasm) &
+ (DMASM_d_m | DMASM_h_m |DMASM_e_m),
+ &lp->rx_dma_regs->dmasm);
+ }
+ return work_done;
+}
@@ -813,8 +810,6 @@ rc32434_tx_dma_interrupt(int irq, void *dev_id)
lp = (struct rc32434_local *)dev->priv;
- spin_lock(&lp->lock);
-
dmas = __raw_readl(&lp->tx_dma_regs->dmas);
if (dmas & (DMAS_f_m | DMAS_e_m)) {
@@ -839,8 +834,6 @@ rc32434_tx_dma_interrupt(int irq, void *dev_id)
else
retval = IRQ_NONE;
- spin_unlock(&lp->lock);
-
return retval;
}
@@ -995,9 +988,6 @@ static int rc32434_init(struct net_device *dev)
/* Enable Ethernet Interface */
__raw_writel(ETHINTFC_en_m, &lp->eth_regs->ethintfc);
-#ifndef CONFIG_IDT_USE_NAPI
- tasklet_disable(lp->rx_tasklet);
-#endif
tasklet_disable(lp->tx_tasklet);
/* Initialize the transmit Descriptors */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 22:45:56 +0000