static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, Scsi_Cmnd *sp)
{
int sz = sp->use_sg - 1;
struct mmu_sglist *sg = (struct mmu_sglist *)sp->buffer;
while(sz >= 0) {
vdma_free(sg[sz].dvma_addr);
sz--;
}
}
static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp)
{
int sz = sp->use_sg - 1;
struct scatterlist *sg = (struct scatterlist *)sp->buffer;
while(sz >= 0) {
vdma_free(sg[sz].dma_address);
sz--;
}
}
/*
* The typical workload of the driver:
* Handle the network interface interrupts.
*/
static void
sonic_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
struct net_device *dev = (struct net_device *)dev_id;
unsigned int base_addr = dev->base_addr;
struct sonic_local *lp;
int status;
if (dev == NULL) {
printk ("sonic_interrupt: irq %d for unknown device.\n", irq);
return;
}
dev->interrupt = 1;
lp = (struct sonic_local *)dev->priv;
status = SONIC_READ(SONIC_ISR);
SONIC_WRITE(SONIC_ISR,0x7fff); /* clear all bits */
if (sonic_debug > 2)
printk("sonic_interrupt: ISR=%x\n",status);
if (status & SONIC_INT_PKTRX) {
sonic_rx(dev); /* got packet(s) */
}
if (status & SONIC_INT_TXDN) {
int dirty_tx = lp->dirty_tx;
while (dirty_tx < lp->cur_tx) {
int entry = dirty_tx & SONIC_TDS_MASK;
int status = lp->tda[entry].tx_status;
if (sonic_debug > 3)
printk ("sonic_interrupt: status %d, cur_tx %d, dirty_tx %d\n",
status,lp->cur_tx,lp->dirty_tx);
if (status == 0) {
/* It still hasn't been Txed, kick the sonic again */
SONIC_WRITE(SONIC_CMD,SONIC_CR_TXP);
break;
}
/* put back EOL and free descriptor */
lp->tda[entry].tx_frag_count = 0;
lp->tda[entry].tx_status = 0;
if (status & 0x0001)
lp->stats.tx_packets++;
else {
lp->stats.tx_errors++;
if (status & 0x0642) lp->stats.tx_aborted_errors++;
if (status & 0x0180) lp->stats.tx_carrier_errors++;
if (status & 0x0020) lp->stats.tx_window_errors++;
if (status & 0x0004) lp->stats.tx_fifo_errors++;
}
/* We must free the original skb */
if (lp->tx_skb[entry]) {
dev_kfree_skb(lp->tx_skb[entry]);
lp->tx_skb[entry] = 0;
}
/* and the VDMA address */
vdma_free(lp->tx_laddr[entry]);
dirty_tx++;
}
if (lp->tx_full && dev->tbusy
&& dirty_tx + SONIC_NUM_TDS > lp->cur_tx + 2) {
/* The ring is no longer full, clear tbusy. */
lp->tx_full = 0;
dev->tbusy = 0;
mark_bh(NET_BH);
}
lp->dirty_tx = dirty_tx;
}
/*
* check error conditions
*/
if (status & SONIC_INT_RFO) {
printk ("%s: receive fifo underrun\n",dev->name);
lp->stats.rx_fifo_errors++;
}
if (status & SONIC_INT_RDE) {
printk ("%s: receive descriptors exhausted\n",dev->name);
lp->stats.rx_dropped++;
}
if (status & SONIC_INT_RBE) {
printk ("%s: receive buffer exhausted\n",dev->name);
lp->stats.rx_dropped++;
}
if (status & SONIC_INT_RBAE) {
printk ("%s: receive buffer area exhausted\n",dev->name);
lp->stats.rx_dropped++;
}
/* counter overruns; all counters are 16bit wide */
if (status & SONIC_INT_FAE)
lp->stats.rx_frame_errors += 65536;
if (status & SONIC_INT_CRC)
lp->stats.rx_crc_errors += 65536;
if (status & SONIC_INT_MP)
lp->stats.rx_missed_errors += 65536;
/* transmit error */
if (status & SONIC_INT_TXER)
lp->stats.tx_errors++;
/*
* clear interrupt bits and return
*/
SONIC_WRITE(SONIC_ISR,status);
dev->interrupt = 0;
return;
}
static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, Scsi_Cmnd *sp)
{
vdma_free(sp->SCp.have_data_in);
}
static void jazz_fd_dma_mem_free(unsigned long addr,
unsigned long size)
{
vdma_free(vdma_phys2log(PHYSADDR(addr)));
free_pages(addr, get_order(size));
}