diff options
Diffstat (limited to 'target/linux/rb532-2.6/patches/110-korina_ethernet.patch')
| -rw-r--r-- | target/linux/rb532-2.6/patches/110-korina_ethernet.patch | 1347 |
1 files changed, 1 insertions, 1346 deletions
diff --git a/target/linux/rb532-2.6/patches/110-korina_ethernet.patch b/target/linux/rb532-2.6/patches/110-korina_ethernet.patch index 5a6bf6f5d..55b9779a8 100644 --- a/target/linux/rb532-2.6/patches/110-korina_ethernet.patch +++ b/target/linux/rb532-2.6/patches/110-korina_ethernet.patch @@ -15,1170 +15,6 @@ diff -urN linux.old/drivers/net/Kconfig linux.dev/drivers/net/Kconfig config MACE tristate "MACE (Power Mac ethernet) support" depends on NET_ETHERNET && PPC_PMAC && PPC32 -diff -urN linux.old/drivers/net/korina.c linux.dev/drivers/net/korina.c ---- linux.old/drivers/net/korina.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux.dev/drivers/net/korina.c 2006-12-14 03:18:45.000000000 +0100 -@@ -0,0 +1,1160 @@ -+/************************************************************************** -+ * -+ * BRIEF MODULE DESCRIPTION -+ * Driver for the IDT RC32434 on-chip ethernet controller. -+ * -+ * Copyright 2004 IDT Inc. (rischelp@idt.com) -+ * Copyright 2006 Felix Fietkau <nbd@openwrt.org> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED -+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN -+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON -+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -+ * -+ * You should have received a copy of the GNU General Public License along -+ * with this program; if not, write to the Free Software Foundation, Inc., -+ * 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ * -+ ************************************************************************** -+ * May 2004 rkt, neb -+ * -+ * Based on the driver developed by B. Maruthanayakam, H. Kou and others. -+ * -+ * Aug 2004 Sadik -+ * -+ * Added NAPI -+ * -+ ************************************************************************** -+ */ -+ -+#include <linux/autoconf.h> -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/moduleparam.h> -+#include <linux/sched.h> -+#include <linux/ctype.h> -+#include <linux/types.h> -+#include <linux/fcntl.h> -+#include <linux/interrupt.h> -+#include <linux/ptrace.h> -+#include <linux/init.h> -+#include <linux/ioport.h> -+#include <linux/proc_fs.h> -+#include <linux/in.h> -+#include <linux/slab.h> -+#include <linux/string.h> -+#include <linux/delay.h> -+#include <linux/netdevice.h> -+#include <linux/etherdevice.h> -+#include <linux/skbuff.h> -+#include <linux/errno.h> -+#include <linux/platform_device.h> -+#include <asm/bootinfo.h> -+#include <asm/system.h> -+#include <asm/bitops.h> -+#include <asm/pgtable.h> -+#include <asm/segment.h> -+#include <asm/io.h> -+#include <asm/dma.h> -+ -+#include <asm/rc32434/rb.h> -+#include "rc32434_eth.h" -+ -+#define DRIVER_VERSION "(mar2904)" -+ -+#define DRIVER_NAME "rc32434 Ethernet driver. " DRIVER_VERSION -+ -+#define STATION_ADDRESS_HIGH(dev) (((dev)->dev_addr[0] << 8) | \ -+ ((dev)->dev_addr[1])) -+#define STATION_ADDRESS_LOW(dev) (((dev)->dev_addr[2] << 24) | \ -+ ((dev)->dev_addr[3] << 16) | \ -+ ((dev)->dev_addr[4] << 8) | \ -+ ((dev)->dev_addr[5])) -+ -+#define MII_CLOCK 1250000 /* no more than 2.5MHz */ -+#define CONFIG_IDT_USE_NAPI 1 -+ -+ -+static inline void rc32434_abort_tx(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ rc32434_abort_dma(dev, lp->tx_dma_regs); -+ -+} -+ -+static inline void rc32434_abort_rx(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ rc32434_abort_dma(dev, lp->rx_dma_regs); -+ -+} -+ -+static inline void rc32434_start_tx(struct rc32434_local *lp, volatile DMAD_t td) -+{ -+ rc32434_start_dma(lp->tx_dma_regs, CPHYSADDR(td)); -+} -+ -+static inline void rc32434_start_rx(struct rc32434_local *lp, volatile DMAD_t rd) -+{ -+ rc32434_start_dma(lp->rx_dma_regs, CPHYSADDR(rd)); -+} -+ -+static inline void rc32434_chain_tx(struct rc32434_local *lp, volatile DMAD_t td) -+{ -+ rc32434_chain_dma(lp->tx_dma_regs, CPHYSADDR(td)); -+} -+ -+static inline void rc32434_chain_rx(struct rc32434_local *lp, volatile DMAD_t rd) -+{ -+ rc32434_chain_dma(lp->rx_dma_regs, CPHYSADDR(rd)); -+} -+ -+#ifdef RC32434_PROC_DEBUG -+static int rc32434_read_proc(char *buf, char **start, off_t fpos, -+ int length, int *eof, void *data) -+{ -+ struct net_device *dev = (struct net_device *)data; -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ int len = 0; -+ -+ /* print out header */ -+ len += sprintf(buf + len, "\n\tKorina Ethernet Debug\n\n"); -+ len += sprintf (buf + len, -+ "DMA halt count = %10d, DMA run count = %10d\n", -+ lp->dma_halt_cnt, lp->dma_run_cnt); -+ -+ if (fpos >= len) { -+ *start = buf; -+ *eof = 1; -+ return 0; -+ } -+ *start = buf + fpos; -+ -+ if ((len -= fpos) > length) -+ return length; -+ *eof = 1; -+ -+ return len; -+ -+} -+#endif -+ -+ -+/* -+ * Restart the RC32434 ethernet controller. -+ */ -+static int rc32434_restart(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ -+ /* -+ * Disable interrupts -+ */ -+ disable_irq(lp->rx_irq); -+ disable_irq(lp->tx_irq); -+#ifdef RC32434_REVISION -+ disable_irq(lp->ovr_irq); -+#endif -+ disable_irq(lp->und_irq); -+ -+ /* Mask F E bit in Tx DMA */ -+ __raw_writel(__raw_readl(&lp->tx_dma_regs->dmasm) | DMASM_f_m | DMASM_e_m, &lp->tx_dma_regs->dmasm); -+ /* Mask 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); -+ -+ rc32434_init(dev); -+ rc32434_multicast_list(dev); -+ -+ enable_irq(lp->und_irq); -+#ifdef RC32434_REVISION -+ enable_irq(lp->ovr_irq); -+#endif -+ enable_irq(lp->tx_irq); -+ enable_irq(lp->rx_irq); -+ -+ return 0; -+} -+ -+static int rc32434_probe(struct platform_device *pdev) -+{ -+ struct korina_device *bif = (struct korina_device *) pdev->dev.platform_data; -+ struct rc32434_local *lp = NULL; -+ struct net_device *dev = NULL; -+ struct resource *r; -+ int i, retval,err; -+ -+ dev = alloc_etherdev(sizeof(struct rc32434_local)); -+ if(!dev) { -+ ERR("Korina_eth: alloc_etherdev failed\n"); -+ return -1; -+ } -+ -+ platform_set_drvdata(pdev, dev); -+ SET_MODULE_OWNER(dev); -+ bif->dev = dev; -+ -+ memcpy(dev->dev_addr, bif->mac, 6); -+ -+ /* Initialize the device structure. */ -+ if (dev->priv == NULL) { -+ lp = (struct rc32434_local *)kmalloc(sizeof(*lp), GFP_KERNEL); -+ memset(lp, 0, sizeof(struct rc32434_local)); -+ } -+ else { -+ lp = (struct rc32434_local *)dev->priv; -+ } -+ -+ lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx"); -+ lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx"); -+ lp->ovr_irq = platform_get_irq_byname(pdev, "korina_ovr"); -+ lp->und_irq = platform_get_irq_byname(pdev, "korina_und"); -+ -+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_regs"); -+ dev->base_addr = r->start; -+ lp->eth_regs = ioremap_nocache(r->start, r->end - r->start); -+ if (!lp->eth_regs) { -+ ERR("Can't remap eth registers\n"); -+ retval = -ENXIO; -+ goto probe_err_out; -+ } -+ -+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_dma_rx"); -+ lp->rx_dma_regs = ioremap_nocache(r->start, r->end - r->start); -+ if (!lp->rx_dma_regs) { -+ ERR("Can't remap Rx DMA registers\n"); -+ retval = -ENXIO; -+ goto probe_err_out; -+ } -+ -+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_dma_tx"); -+ lp->tx_dma_regs = ioremap_nocache(r->start, r->end - r->start); -+ if (!lp->tx_dma_regs) { -+ ERR("Can't remap Tx DMA registers\n"); -+ retval = -ENXIO; -+ goto probe_err_out; -+ } -+ -+#ifdef RC32434_PROC_DEBUG -+ lp->ps = create_proc_read_entry (bif->name, 0, proc_net, -+ rc32434_read_proc, dev); -+#endif -+ -+ lp->td_ring = (DMAD_t)kmalloc(TD_RING_SIZE + RD_RING_SIZE, GFP_KERNEL); -+ if (!lp->td_ring) { -+ ERR("Can't allocate descriptors\n"); -+ retval = -ENOMEM; -+ goto probe_err_out; -+ } -+ -+ dma_cache_inv((unsigned long)(lp->td_ring), TD_RING_SIZE + RD_RING_SIZE); -+ -+ /* now convert TD_RING pointer to KSEG1 */ -+ lp->td_ring = (DMAD_t )KSEG1ADDR(lp->td_ring); -+ lp->rd_ring = &lp->td_ring[RC32434_NUM_TDS]; -+ -+ -+ spin_lock_init(&lp->lock); -+ -+ /* just use the rx dma irq */ -+ dev->irq = lp->rx_irq; -+ -+ dev->priv = lp; -+ -+ dev->open = rc32434_open; -+ dev->stop = rc32434_close; -+ dev->hard_start_xmit = rc32434_send_packet; -+ dev->get_stats = rc32434_get_stats; -+ dev->set_multicast_list = &rc32434_multicast_list; -+ dev->tx_timeout = rc32434_tx_timeout; -+ dev->watchdog_timeo = RC32434_TX_TIMEOUT; -+ -+#ifdef CONFIG_IDT_USE_NAPI -+ dev->poll = rc32434_poll; -+ dev->weight = 64; -+ printk("Using NAPI with weight %d\n",dev->weight); -+#else -+ lp->rx_tasklet = kmalloc(sizeof(struct tasklet_struct), GFP_KERNEL); -+ tasklet_init(lp->rx_tasklet, rc32434_rx_tasklet, (unsigned long)dev); -+#endif -+ lp->tx_tasklet = kmalloc(sizeof(struct tasklet_struct), GFP_KERNEL); -+ tasklet_init(lp->tx_tasklet, rc32434_tx_tasklet, (unsigned long)dev); -+ -+ if ((err = register_netdev(dev))) { -+ printk(KERN_ERR "rc32434 ethernet. Cannot register net device %d\n", err); -+ free_netdev(dev); -+ retval = -EINVAL; -+ goto probe_err_out; -+ } -+ -+ INFO("Rx IRQ %d, Tx IRQ %d, ", lp->rx_irq, lp->tx_irq); -+ for (i = 0; i < 6; i++) { -+ printk("%2.2x", dev->dev_addr[i]); -+ if (i<5) -+ printk(":"); -+ } -+ printk("\n"); -+ -+ return 0; -+ -+ probe_err_out: -+ rc32434_cleanup_module(); -+ ERR(" failed. Returns %d\n", retval); -+ return retval; -+ -+} -+ -+static int rc32434_remove(struct platform_device *pdev) -+{ -+ struct korina_device *bif = (struct korina_device *) pdev->dev.platform_data; -+ -+ if (bif->dev != NULL) { -+ struct rc32434_local *lp = (struct rc32434_local *)bif->dev->priv; -+ if (lp != NULL) { -+ if (lp->eth_regs) -+ iounmap((void*)lp->eth_regs); -+ if (lp->rx_dma_regs) -+ iounmap((void*)lp->rx_dma_regs); -+ if (lp->tx_dma_regs) -+ iounmap((void*)lp->tx_dma_regs); -+ if (lp->td_ring) -+ kfree((void*)KSEG0ADDR(lp->td_ring)); -+ -+#ifdef RC32434_PROC_DEBUG -+ if (lp->ps) { -+ remove_proc_entry(bif->name, proc_net); -+ } -+#endif -+ kfree(lp); -+ } -+ -+ platform_set_drvdata(pdev, NULL); -+ unregister_netdev(bif->dev); -+ free_netdev(bif->dev); -+ kfree(bif->dev); -+ } -+ return 0; -+} -+ -+ -+static int rc32434_open(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ -+ /* Initialize */ -+ if (rc32434_init(dev)) { -+ ERR("Error: cannot open the Ethernet device\n"); -+ return -EAGAIN; -+ } -+ -+ /* Install the interrupt handler that handles the Done Finished Ovr and Und Events */ -+ if (request_irq(lp->rx_irq, &rc32434_rx_dma_interrupt, -+ SA_SHIRQ | SA_INTERRUPT, -+ "Korina ethernet Rx", dev)) { -+ ERR(": unable to get Rx DMA IRQ %d\n", -+ lp->rx_irq); -+ return -EAGAIN; -+ } -+ if (request_irq(lp->tx_irq, &rc32434_tx_dma_interrupt, -+ SA_SHIRQ | SA_INTERRUPT, -+ "Korina ethernet Tx", dev)) { -+ ERR(": unable to get Tx DMA IRQ %d\n", -+ lp->tx_irq); -+ free_irq(lp->rx_irq, dev); -+ return -EAGAIN; -+ } -+ -+#ifdef RC32434_REVISION -+ /* Install handler for overrun error. */ -+ if (request_irq(lp->ovr_irq, &rc32434_ovr_interrupt, -+ SA_SHIRQ | SA_INTERRUPT, -+ "Ethernet Overflow", dev)) { -+ ERR(": unable to get OVR IRQ %d\n", -+ lp->ovr_irq); -+ free_irq(lp->rx_irq, dev); -+ free_irq(lp->tx_irq, dev); -+ return -EAGAIN; -+ } -+#endif -+ -+ /* Install handler for underflow error. */ -+ if (request_irq(lp->und_irq, &rc32434_und_interrupt, -+ SA_SHIRQ | SA_INTERRUPT, -+ "Ethernet Underflow", dev)) { -+ ERR(": unable to get UND IRQ %d\n", -+ lp->und_irq); -+ free_irq(lp->rx_irq, dev); -+ free_irq(lp->tx_irq, dev); -+#ifdef RC32434_REVISION -+ free_irq(lp->ovr_irq, dev); -+#endif -+ return -EAGAIN; -+ } -+ -+ -+ return 0; -+} -+ -+ -+ -+ -+static int rc32434_close(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ u32 tmp; -+ -+ /* Disable interrupts */ -+ disable_irq(lp->rx_irq); -+ disable_irq(lp->tx_irq); -+#ifdef RC32434_REVISION -+ disable_irq(lp->ovr_irq); -+#endif -+ disable_irq(lp->und_irq); -+ -+ tmp = __raw_readl(&lp->tx_dma_regs->dmasm); -+ tmp = tmp | DMASM_f_m | DMASM_e_m; -+ __raw_writel(tmp, &lp->tx_dma_regs->dmasm); -+ -+ tmp = __raw_readl(&lp->rx_dma_regs->dmasm); -+ tmp = tmp | DMASM_d_m | DMASM_h_m | DMASM_e_m; -+ __raw_writel(tmp, &lp->rx_dma_regs->dmasm); -+ -+ free_irq(lp->rx_irq, dev); -+ free_irq(lp->tx_irq, dev); -+#ifdef RC32434_REVISION -+ free_irq(lp->ovr_irq, dev); -+#endif -+ free_irq(lp->und_irq, dev); -+ return 0; -+} -+ -+ -+/* transmit packet */ -+static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ unsigned long flags; -+ u32 length; -+ DMAD_t td; -+ -+ -+ spin_lock_irqsave(&lp->lock, flags); -+ -+ td = &lp->td_ring[lp->tx_chain_tail]; -+ -+ /* stop queue when full, drop pkts if queue already full */ -+ if(lp->tx_count >= (RC32434_NUM_TDS - 2)) { -+ lp->tx_full = 1; -+ -+ if(lp->tx_count == (RC32434_NUM_TDS - 2)) { -+ netif_stop_queue(dev); -+ } -+ else { -+ lp->stats.tx_dropped++; -+ dev_kfree_skb_any(skb); -+ spin_unlock_irqrestore(&lp->lock, flags); -+ return 1; -+ } -+ } -+ -+ lp->tx_count ++; -+ -+ lp->tx_skb[lp->tx_chain_tail] = skb; -+ -+ length = skb->len; -+ -+ /* Setup the transmit descriptor. */ -+ td->ca = CPHYSADDR(skb->data); -+ -+ if(__raw_readl(&(lp->tx_dma_regs->dmandptr)) == 0) { -+ if( lp->tx_chain_status == empty ) { -+ td->control = DMA_COUNT(length) |DMAD_cof_m |DMAD_iof_m; /* Update tail */ -+ lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ -+ __raw_writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), &(lp->tx_dma_regs->dmandptr)); /* Write to NDPTR */ -+ lp->tx_chain_head = lp->tx_chain_tail; /* Move head to tail */ -+ } -+ else { -+ td->control = DMA_COUNT(length) |DMAD_cof_m|DMAD_iof_m; /* Update tail */ -+ lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].control &= ~(DMAD_cof_m); /* Link to prev */ -+ lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].link = CPHYSADDR(td); /* Link to prev */ -+ lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ -+ __raw_writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), &(lp->tx_dma_regs->dmandptr)); /* Write to NDPTR */ -+ lp->tx_chain_head = lp->tx_chain_tail; /* Move head to tail */ -+ lp->tx_chain_status = empty; -+ } -+ } -+ else { -+ if( lp->tx_chain_status == empty ) { -+ td->control = DMA_COUNT(length) |DMAD_cof_m |DMAD_iof_m; /* Update tail */ -+ lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ -+ lp->tx_chain_status = filled; -+ } -+ else { -+ td->control = DMA_COUNT(length) |DMAD_cof_m |DMAD_iof_m; /* Update tail */ -+ lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].control &= ~(DMAD_cof_m); /* Link to prev */ -+ lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].link = CPHYSADDR(td); /* Link to prev */ -+ lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ -+ } -+ } -+ -+ dev->trans_start = jiffies; -+ -+ spin_unlock_irqrestore(&lp->lock, flags); -+ -+ return 0; -+} -+ -+ -+/* Ethernet MII-PHY Handler */ -+static void rc32434_mii_handler(unsigned long data) -+{ -+ struct net_device *dev = (struct net_device *)data; -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ unsigned long flags; -+ unsigned long duplex_status; -+ int port_addr = (lp->rx_irq == 0x2c? 1:0) << 8; -+ -+ spin_lock_irqsave(&lp->lock, flags); -+ -+ /* Two ports are using the same MII, the difference is the PHY address */ -+ __raw_writel(0, &rc32434_eth0_regs->miimcfg); -+ __raw_writel(0, &rc32434_eth0_regs->miimcmd); -+ __raw_writel(port_addr |0x05, &rc32434_eth0_regs->miimaddr); -+ __raw_writel(MIIMCMD_scn_m, &rc32434_eth0_regs->miimcmd); -+ while(__raw_readl(&rc32434_eth0_regs->miimind) & MIIMIND_nv_m); -+ -+ ERR("irq:%x port_addr:%x RDD:%x\n", -+ lp->rx_irq, port_addr, __raw_readl(&rc32434_eth0_regs->miimrdd)); -+ duplex_status = (__raw_readl(&rc32434_eth0_regs->miimrdd) & 0x140)? ETHMAC2_fd_m: 0; -+ if(duplex_status != lp->duplex_mode) { -+ ERR("The MII-PHY is Auto-negotiated to %s-Duplex mode for Eth-%x\n", duplex_status? "Full":"Half", lp->rx_irq == 0x2c? 1:0); -+ lp->duplex_mode = duplex_status; -+ rc32434_restart(dev); -+ } -+ -+ lp->mii_phy_timer.expires = jiffies + 10 * HZ; -+ add_timer(&lp->mii_phy_timer); -+ -+ spin_unlock_irqrestore(&lp->lock, flags); -+ -+} -+ -+#ifdef RC32434_REVISION -+/* Ethernet Rx Overflow interrupt */ -+static irqreturn_t -+rc32434_ovr_interrupt(int irq, void *dev_id) -+{ -+ struct net_device *dev = (struct net_device *)dev_id; -+ struct rc32434_local *lp; -+ unsigned int ovr; -+ irqreturn_t retval = IRQ_NONE; -+ -+ ASSERT(dev != NULL); -+ -+ lp = (struct rc32434_local *)dev->priv; -+ spin_lock(&lp->lock); -+ ovr = __raw_readl(&lp->eth_regs->ethintfc); -+ -+ if(ovr & ETHINTFC_ovr_m) { -+ netif_stop_queue(dev); -+ -+ /* clear OVR bit */ -+ __raw_writel((ovr & ~ETHINTFC_ovr_m), &lp->eth_regs->ethintfc); -+ -+ /* Restart interface */ -+ rc32434_restart(dev); -+ retval = IRQ_HANDLED; -+ } -+ spin_unlock(&lp->lock); -+ -+ return retval; -+} -+ -+#endif -+ -+ -+/* Ethernet Tx Underflow interrupt */ -+static irqreturn_t -+rc32434_und_interrupt(int irq, void *dev_id) -+{ -+ struct net_device *dev = (struct net_device *)dev_id; -+ struct rc32434_local *lp; -+ unsigned int und; -+ irqreturn_t retval = IRQ_NONE; -+ -+ ASSERT(dev != NULL); -+ -+ lp = (struct rc32434_local *)dev->priv; -+ -+ spin_lock(&lp->lock); -+ -+ und = __raw_readl(&lp->eth_regs->ethintfc); -+ -+ if(und & ETHINTFC_und_m) { -+ netif_stop_queue(dev); -+ -+ __raw_writel((und & ~ETHINTFC_und_m), &lp->eth_regs->ethintfc); -+ -+ /* Restart interface */ -+ rc32434_restart(dev); -+ retval = IRQ_HANDLED; -+ } -+ -+ spin_unlock(&lp->lock); -+ -+ return retval; -+} -+ -+ -+/* Ethernet Rx DMA interrupt */ -+static irqreturn_t -+rc32434_rx_dma_interrupt(int irq, void *dev_id) -+{ -+ struct net_device *dev = (struct net_device *)dev_id; -+ struct rc32434_local* lp; -+ volatile u32 dmas,dmasm; -+ irqreturn_t retval; -+ -+ ASSERT(dev != NULL); -+ -+ 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); -+#ifdef CONFIG_IDT_USE_NAPI -+ if(netif_rx_schedule_prep(dev)) -+ __netif_rx_schedule(dev); -+#else -+ tasklet_hi_schedule(lp->rx_tasklet); -+#endif -+ -+ if (dmas & DMAS_e_m) -+ ERR(": DMA error\n"); -+ -+ retval = IRQ_HANDLED; -+ } -+ else -+ retval = IRQ_NONE; -+ -+ spin_unlock(&lp->lock); -+ return retval; -+} -+ -+#ifdef CONFIG_IDT_USE_NAPI -+static int rc32434_poll(struct net_device *rx_data_dev, int *budget) -+#else -+static void rc32434_rx_tasklet(unsigned long rx_data_dev) -+#endif -+{ -+ struct net_device *dev = (struct net_device *)rx_data_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; -+#ifdef CONFIG_IDT_USE_NAPI -+ u32 received = 0; -+ int rx_work_limit = min(*budget,dev->quota); -+#else -+ unsigned long flags; -+ spin_lock_irqsave(&lp->lock, flags); -+#endif -+ -+ while ( (count = RC32434_RBSIZE - (u32)DMA_COUNT(rd->control)) != 0) { -+#ifdef CONFIG_IDT_USE_NAPI -+ if(--rx_work_limit <0) -+ { -+ break; -+ } -+#endif -+ /* 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) { -+ /* check that this is a whole packet */ -+ /* WARNING: DMA_FD bit incorrectly set in Rc32434 (errata ref #077) */ -+ lp->stats.rx_errors++; -+ lp->stats.rx_dropped++; -+ } -+ 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; -+ -+ pktuncrc_len = pkt_len - 4; -+ /* invalidate the cache */ -+ dma_cache_inv((unsigned long)pkt_buf, pktuncrc_len); -+ -+ /* Malloc up new buffer. */ -+ skb_new = dev_alloc_skb(RC32434_RBSIZE + 2); -+ -+ if (skb_new != NULL){ -+ /* Make room */ -+ skb_put(skb, pktuncrc_len); -+ -+ skb->protocol = eth_type_trans(skb, dev); -+ -+ /* pass the packet to upper layers */ -+#ifdef CONFIG_IDT_USE_NAPI -+ netif_receive_skb(skb); -+#else -+ netif_rx(skb); -+#endif -+ -+ dev->last_rx = jiffies; -+ lp->stats.rx_packets++; -+ lp->stats.rx_bytes += pktuncrc_len; -+ -+ if (IS_RCV_MP(devcs)) -+ lp->stats.multicast++; -+ -+ /* 16 bit align */ -+ skb_reserve(skb_new, 2); -+ -+ skb_new->dev = dev; -+ lp->rx_skb[lp->rx_next_done] = skb_new; -+ } -+ else { -+ ERR("no memory, dropping rx packet.\n"); -+ lp->stats.rx_errors++; -+ lp->stats.rx_dropped++; -+ } -+ } -+ -+ } -+ else { -+ /* This should only happen if we enable accepting broken packets */ -+ lp->stats.rx_errors++; -+ lp->stats.rx_dropped++; -+ -+ /* add statistics counters */ -+ if (IS_RCV_CRC_ERR(devcs)) { -+ DBG(2, "RX CRC error\n"); -+ lp->stats.rx_crc_errors++; -+ } -+ else if (IS_RCV_LOR_ERR(devcs)) { -+ DBG(2, "RX LOR error\n"); -+ lp->stats.rx_length_errors++; -+ } -+ else if (IS_RCV_LE_ERR(devcs)) { -+ DBG(2, "RX LE error\n"); -+ lp->stats.rx_length_errors++; -+ } -+ else if (IS_RCV_OVR_ERR(devcs)) { -+ lp->stats.rx_over_errors++; -+ } -+ else if (IS_RCV_CV_ERR(devcs)) { -+ /* code violation */ -+ DBG(2, "RX CV error\n"); -+ lp->stats.rx_frame_errors++; -+ } -+ else if (IS_RCV_CES_ERR(devcs)) { -+ DBG(2, "RX Preamble error\n"); -+ } -+ } -+ -+ rd->devcs = 0; -+ -+ /* restore descriptor's curr_addr */ -+ if(skb_new) -+ rd->ca = CPHYSADDR(skb_new->data); -+ else -+ rd->ca = CPHYSADDR(skb->data); -+ -+ rd->control = DMA_COUNT(RC32434_RBSIZE) |DMAD_cod_m |DMAD_iod_m; -+ lp->rd_ring[(lp->rx_next_done-1)& RC32434_RDS_MASK].control &= ~(DMAD_cod_m); -+ -+ lp->rx_next_done = (lp->rx_next_done + 1) & RC32434_RDS_MASK; -+ rd = &lp->rd_ring[lp->rx_next_done]; -+ __raw_writel( ~DMAS_d_m, &lp->rx_dma_regs->dmas); -+ } -+#ifdef CONFIG_IDT_USE_NAPI -+ dev->quota -= received; -+ *budget =- received; -+ if(rx_work_limit < 0) -+ goto not_done; -+#endif -+ -+ dmas = __raw_readl(&lp->rx_dma_regs->dmas); -+ -+ if(dmas & DMAS_h_m) { -+ __raw_writel( ~(DMAS_h_m | DMAS_e_m), &lp->rx_dma_regs->dmas); -+#ifdef RC32434_PROC_DEBUG -+ lp->dma_halt_cnt++; -+#endif -+ rd->devcs = 0; -+ skb = lp->rx_skb[lp->rx_next_done]; -+ rd->ca = CPHYSADDR(skb->data); -+ rc32434_chain_rx(lp,rd); -+ } -+ -+#ifdef CONFIG_IDT_USE_NAPI -+ netif_rx_complete(dev); -+#endif -+ /* 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); -+#ifdef CONFIG_IDT_USE_NAPI -+ return 0; -+ not_done: -+ return 1; -+#else -+ spin_unlock_irqrestore(&lp->lock, flags); -+ return; -+#endif -+ -+ -+} -+ -+ -+ -+/* Ethernet Tx DMA interrupt */ -+static irqreturn_t -+rc32434_tx_dma_interrupt(int irq, void *dev_id) -+{ -+ struct net_device *dev = (struct net_device *)dev_id; -+ struct rc32434_local *lp; -+ volatile u32 dmas,dmasm; -+ irqreturn_t retval; -+ -+ ASSERT(dev != NULL); -+ -+ 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)) { -+ dmasm = __raw_readl(&lp->tx_dma_regs->dmasm); -+ /* Mask F E bit in Tx DMA */ -+ __raw_writel(dmasm | (DMASM_f_m | DMASM_e_m), &lp->tx_dma_regs->dmasm); -+ -+ tasklet_hi_schedule(lp->tx_tasklet); -+ -+ if(lp->tx_chain_status == filled && (__raw_readl(&(lp->tx_dma_regs->dmandptr)) == 0)) { -+ __raw_writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), &(lp->tx_dma_regs->dmandptr)); -+ lp->tx_chain_status = empty; -+ lp->tx_chain_head = lp->tx_chain_tail; -+ dev->trans_start = jiffies; -+ } -+ -+ if (dmas & DMAS_e_m) -+ ERR(": DMA error\n"); -+ -+ retval = IRQ_HANDLED; -+ } -+ else -+ retval = IRQ_NONE; -+ -+ spin_unlock(&lp->lock); -+ -+ return retval; -+} -+ -+ -+static void rc32434_tx_tasklet(unsigned long tx_data_dev) -+{ -+ struct net_device *dev = (struct net_device *)tx_data_dev; -+ struct rc32434_local* lp = (struct rc32434_local *)dev->priv; -+ volatile DMAD_t td = &lp->td_ring[lp->tx_next_done]; -+ u32 devcs; -+ unsigned long flags; -+ volatile u32 dmas; -+ -+ spin_lock_irqsave(&lp->lock, flags); -+ -+ /* process all desc that are done */ -+ while(IS_DMA_FINISHED(td->control)) { -+ if(lp->tx_full == 1) { -+ netif_wake_queue(dev); -+ lp->tx_full = 0; -+ } -+ -+ devcs = lp->td_ring[lp->tx_next_done].devcs; -+ if ((devcs & (ETHTX_fd_m | ETHTX_ld_m)) != (ETHTX_fd_m | ETHTX_ld_m)) { -+ lp->stats.tx_errors++; -+ lp->stats.tx_dropped++; -+ -+ /* should never happen */ -+ DBG(1, __FUNCTION__ ": split tx ignored\n"); -+ } -+ else if (IS_TX_TOK(devcs)) { -+ lp->stats.tx_packets++; -+ } -+ else { -+ lp->stats.tx_errors++; -+ lp->stats.tx_dropped++; -+ -+ /* underflow */ -+ if (IS_TX_UND_ERR(devcs)) -+ lp->stats.tx_fifo_errors++; -+ -+ /* oversized frame */ -+ if (IS_TX_OF_ERR(devcs)) -+ lp->stats.tx_aborted_errors++; -+ -+ /* excessive deferrals */ -+ if (IS_TX_ED_ERR(devcs)) -+ lp->stats.tx_carrier_errors++; -+ -+ /* collisions: medium busy */ -+ if (IS_TX_EC_ERR(devcs)) -+ lp->stats.collisions++; -+ -+ /* late collision */ -+ if (IS_TX_LC_ERR(devcs)) -+ lp->stats.tx_window_errors++; -+ -+ } -+ -+ /* We must always free the original skb */ -+ if (lp->tx_skb[lp->tx_next_done] != NULL) { -+ dev_kfree_skb_any(lp->tx_skb[lp->tx_next_done]); -+ lp->tx_skb[lp->tx_next_done] = NULL; -+ } -+ -+ lp->td_ring[lp->tx_next_done].control = DMAD_iof_m; -+ lp->td_ring[lp->tx_next_done].devcs = ETHTX_fd_m | ETHTX_ld_m; -+ lp->td_ring[lp->tx_next_done].link = 0; -+ lp->td_ring[lp->tx_next_done].ca = 0; -+ lp->tx_count --; -+ -+ /* go on to next transmission */ -+ lp->tx_next_done = (lp->tx_next_done + 1) & RC32434_TDS_MASK; -+ td = &lp->td_ring[lp->tx_next_done]; -+ -+ } -+ -+ dmas = __raw_readl(&lp->tx_dma_regs->dmas); -+ __raw_writel( ~dmas, &lp->tx_dma_regs->dmas); -+ -+ /* Enable F E bit in Tx DMA */ -+ __raw_writel(__raw_readl(&lp->tx_dma_regs->dmasm) & ~(DMASM_f_m | DMASM_e_m), &lp->tx_dma_regs->dmasm); -+ spin_unlock_irqrestore(&lp->lock, flags); -+ -+} -+ -+ -+static struct net_device_stats * rc32434_get_stats(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ return &lp->stats; -+} -+ -+ -+/* -+ * Set or clear the multicast filter for this adaptor. -+ */ -+static void rc32434_multicast_list(struct net_device *dev) -+{ -+ /* listen to broadcasts always and to treat */ -+ /* IFF bits independantly */ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ unsigned long flags; -+ u32 recognise = ETHARC_ab_m; /* always accept broadcasts */ -+ -+ if (dev->flags & IFF_PROMISC) /* set promiscuous mode */ -+ recognise |= ETHARC_pro_m; -+ -+ if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 15)) -+ recognise |= ETHARC_am_m; /* all multicast & bcast */ -+ else if (dev->mc_count > 0) { -+ DBG(2, __FUNCTION__ ": mc_count %d\n", dev->mc_count); -+ recognise |= ETHARC_am_m; /* for the time being */ -+ } -+ -+ spin_lock_irqsave(&lp->lock, flags); -+ __raw_writel(recognise, &lp->eth_regs->etharc); -+ spin_unlock_irqrestore(&lp->lock, flags); -+} -+ -+ -+static void rc32434_tx_timeout(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&lp->lock, flags); -+ rc32434_restart(dev); -+ spin_unlock_irqrestore(&lp->lock, flags); -+ -+} -+ -+ -+/* -+ * Initialize the RC32434 ethernet controller. -+ */ -+static int rc32434_init(struct net_device *dev) -+{ -+ struct rc32434_local *lp = (struct rc32434_local *)dev->priv; -+ int i, j; -+ -+ /* Disable DMA */ -+ rc32434_abort_tx(dev); -+ rc32434_abort_rx(dev); -+ -+ /* reset ethernet logic */ -+ __raw_writel(0, &lp->eth_regs->ethintfc); -+ while((__raw_readl(&lp->eth_regs->ethintfc) & ETHINTFC_rip_m)) -+ dev->trans_start = jiffies; -+ -+ /* 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 */ -+ for (i = 0; i < RC32434_NUM_TDS; i++) { -+ lp->td_ring[i].control = DMAD_iof_m; -+ lp->td_ring[i].devcs = ETHTX_fd_m | ETHTX_ld_m; -+ lp->td_ring[i].ca = 0; -+ lp->td_ring[i].link = 0; -+ if (lp->tx_skb[i] != NULL) { -+ dev_kfree_skb_any(lp->tx_skb[i]); -+ lp->tx_skb[i] = NULL; -+ } -+ } -+ lp->tx_next_done = lp->tx_chain_head = lp->tx_chain_tail = lp->tx_full = lp->tx_count = 0; -+ lp-> tx_chain_status = empty; -+ -+ /* -+ * Initialize the receive descriptors so that they -+ * become a circular linked list, ie. let the last -+ * descriptor point to the first again. -+ */ -+ for (i=0; i<RC32434_NUM_RDS; i++) { -+ struct sk_buff *skb = lp->rx_skb[i]; -+ -+ if (lp->rx_skb[i] == NULL) { -+ skb = dev_alloc_skb(RC32434_RBSIZE + 2); -+ if (skb == NULL) { -+ ERR("No memory in the system\n"); -+ for (j = 0; j < RC32434_NUM_RDS; j ++) -+ if (lp->rx_skb[j] != NULL) -+ dev_kfree_skb_any(lp->rx_skb[j]); -+ -+ return 1; -+ } -+ else { -+ skb->dev = dev; -+ skb_reserve(skb, 2); -+ lp->rx_skb[i] = skb; -+ lp->rd_ring[i].ca = CPHYSADDR(skb->data); -+ -+ } -+ } -+ lp->rd_ring[i].control = DMAD_iod_m | DMA_COUNT(RC32434_RBSIZE); -+ lp->rd_ring[i].devcs = 0; -+ lp->rd_ring[i].ca = CPHYSADDR(skb->data); -+ lp->rd_ring[i].link = CPHYSADDR(&lp->rd_ring[i+1]); -+ -+ } -+ /* loop back */ -+ lp->rd_ring[RC32434_NUM_RDS-1].link = CPHYSADDR(&lp->rd_ring[0]); -+ lp->rx_next_done = 0; -+ -+ lp->rd_ring[RC32434_NUM_RDS-1].control |= DMAD_cod_m; -+ lp->rx_chain_head = 0; -+ lp->rx_chain_tail = 0; -+ lp->rx_chain_status = empty; -+ -+ __raw_writel(0, &lp->rx_dma_regs->dmas); -+ /* Start Rx DMA */ -+ rc32434_start_rx(lp, &lp->rd_ring[0]); -+ -+ /* Enable F E bit in Tx DMA */ -+ __raw_writel(__raw_readl(&lp->tx_dma_regs->dmasm) & ~(DMASM_f_m | DMASM_e_m), &lp->tx_dma_regs->dmasm); -+ /* 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); -+ -+ /* Accept only packets destined for this Ethernet device address */ -+ __raw_writel(ETHARC_ab_m, &lp->eth_regs->etharc); -+ -+ /* Set all Ether station address registers to their initial values */ -+ __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal0); -+ __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah0); -+ -+ __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal1); -+ __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah1); -+ -+ __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal2); -+ __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah2); -+ -+ __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal3); -+ __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah3); -+ -+ -+ /* Frame Length Checking, Pad Enable, CRC Enable, Full Duplex set */ -+ __raw_writel(ETHMAC2_pe_m | ETHMAC2_cen_m | ETHMAC2_fd_m, &lp->eth_regs->ethmac2); -+ //ETHMAC2_flc_m ETHMAC2_fd_m lp->duplex_mode -+ -+ /* Back to back inter-packet-gap */ -+ __raw_writel(0x15, &lp->eth_regs->ethipgt); -+ /* Non - Back to back inter-packet-gap */ -+ __raw_writel(0x12, &lp->eth_regs->ethipgr); -+ -+ /* Management Clock Prescaler Divisor */ -+ /* Clock independent setting */ -+ __raw_writel(((idt_cpu_freq)/MII_CLOCK+1) & ~1, -+ &lp->eth_regs->ethmcp); -+ -+ /* don't transmit until fifo contains 48b */ -+ __raw_writel(48, &lp->eth_regs->ethfifott); -+ -+ __raw_writel(ETHMAC1_re_m, &lp->eth_regs->ethmac1); -+ -+#ifndef CONFIG_IDT_USE_NAPI -+ tasklet_enable(lp->rx_tasklet); -+#endif -+ tasklet_enable(lp->tx_tasklet); -+ -+ netif_start_queue(dev); -+ -+ return 0; -+} -+ -+static struct platform_driver korina_driver = { -+ .driver.name = "korina", -+ .probe = rc32434_probe, -+ .remove = rc32434_remove, -+}; -+ -+static int __init rc32434_init_module(void) -+{ -+ return platform_driver_register(&korina_driver); -+} -+ -+static void rc32434_cleanup_module(void) -+{ -+ return platform_driver_unregister(&korina_driver); -+} -+ -+module_init(rc32434_init_module); -+module_exit(rc32434_cleanup_module); diff -urN linux.old/drivers/net/Makefile linux.dev/drivers/net/Makefile --- linux.old/drivers/net/Makefile 2006-12-14 03:13:47.000000000 +0100 +++ linux.dev/drivers/net/Makefile 2006-12-14 03:18:45.000000000 +0100 @@ -1191,185 +27,4 @@ diff -urN linux.old/drivers/net/Makefile linux.dev/drivers/net/Makefile obj-$(CONFIG_ROADRUNNER) += rrunner.o obj-$(CONFIG_HAPPYMEAL) += sunhme.o -diff -urN linux.old/drivers/net/rc32434_eth.h linux.dev/drivers/net/rc32434_eth.h ---- linux.old/drivers/net/rc32434_eth.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux.dev/drivers/net/rc32434_eth.h 2006-12-14 03:18:45.000000000 +0100 -@@ -0,0 +1,178 @@ -+/************************************************************************** -+ * -+ * BRIEF MODULE DESCRIPTION -+ * Definitions for IDT RC32434 on-chip ethernet controller. -+ * -+ * Copyright 2004 IDT Inc. (rischelp@idt.com) -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED -+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN -+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON -+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -+ * -+ * You should have received a copy of the GNU General Public License along -+ * with this program; if not, write to the Free Software Foundation, Inc., -+ * 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ * -+ ************************************************************************** -+ * May 2004 rkt, neb -+ * -+ * Initial Release -+ * -+ * Aug 2004 -+ * -+ * Added NAPI -+ * -+ ************************************************************************** -+ */ -+ -+ -+#include <asm/rc32434/rc32434.h> -+#include <asm/rc32434/dma_v.h> -+#include <asm/rc32434/eth_v.h> -+ -+#define CONFIG_IDT_USE_NAPI 1 -+#define RC32434_DEBUG 2 -+//#define RC32434_PROC_DEBUG -+#undef RC32434_DEBUG -+ -+#ifdef RC32434_DEBUG -+ -+/* use 0 for production, 1 for verification, >2 for debug */ -+static int rc32434_debug = RC32434_DEBUG; -+#define ASSERT(expr) \ -+ if(!(expr)) { \ -+ printk( "Assertion failed! %s,%s,%s,line=%d\n", \ -+ #expr,__FILE__,__FUNCTION__,__LINE__); } -+#define DBG(lvl, format, arg...) if (rc32434_debug > lvl) printk(KERN_INFO "%s: " format, dev->name , ## arg) -+#else -+#define ASSERT(expr) do {} while (0) -+#define DBG(lvl, format, arg...) do {} while (0) -+#endif -+ -+#define INFO(format, arg...) printk(KERN_INFO "%s: " format, dev->name , ## arg) -+#define ERR(format, arg...) printk(KERN_ERR "%s: " format, dev->name , ## arg) -+#define WARN(format, arg...) printk(KERN_WARNING "%s: " format, dev->name , ## arg) -+ -+/* the following must be powers of two */ -+#ifdef CONFIG_IDT_USE_NAPI -+#define RC32434_NUM_RDS 64 /* number of receive descriptors */ -+#define RC32434_NUM_TDS 64 /* number of transmit descriptors */ -+#else -+#define RC32434_NUM_RDS 128 /* number of receive descriptors */ -+#define RC32434_NUM_TDS 128 /* number of transmit descriptors */ -+#endif -+ -+#define RC32434_RBSIZE 1536 /* size of one resource buffer = Ether MTU */ -+#define RC32434_RDS_MASK (RC32434_NUM_RDS-1) -+#define RC32434_TDS_MASK (RC32434_NUM_TDS-1) -+#define RD_RING_SIZE (RC32434_NUM_RDS * sizeof(struct DMAD_s)) -+#define TD_RING_SIZE (RC32434_NUM_TDS * sizeof(struct DMAD_s)) -+ -+#define RC32434_TX_TIMEOUT HZ * 100 -+ -+#define rc32434_eth0_regs ((ETH_t)(ETH0_VirtualAddress)) -+#define rc32434_eth1_regs ((ETH_t)(ETH1_VirtualAddress)) -+ -+enum status { filled, empty}; -+#define IS_DMA_FINISHED(X) (((X) & (DMAD_f_m)) != 0) -+#define IS_DMA_DONE(X) (((X) & (DMAD_d_m)) != 0) -+ -+ -+/* Information that need to be kept for each board. */ -+struct rc32434_local { -+ ETH_t eth_regs; -+ DMA_Chan_t rx_dma_regs; -+ DMA_Chan_t tx_dma_regs; -+ volatile DMAD_t td_ring; /* transmit descriptor ring */ -+ volatile DMAD_t rd_ring; /* receive descriptor ring */ -+ -+ struct sk_buff* tx_skb[RC32434_NUM_TDS]; /* skbuffs for pkt to trans */ -+ struct sk_buff* rx_skb[RC32434_NUM_RDS]; /* skbuffs for pkt to trans */ -+ -+#ifndef CONFIG_IDT_USE_NAPI -+ struct tasklet_struct * rx_tasklet; -+#endif -+ struct tasklet_struct * tx_tasklet; -+ -+ int rx_next_done; -+ int rx_chain_head; -+ int rx_chain_tail; -+ enum status rx_chain_status; -+ -+ int tx_next_done; -+ int tx_chain_head; -+ int tx_chain_tail; -+ enum status tx_chain_status; -+ int tx_count; -+ int tx_full; -+ -+ struct timer_list mii_phy_timer; -+ unsigned long duplex_mode; -+ -+ int rx_irq; -+ int tx_irq; -+ int ovr_irq; -+ int und_irq; -+ -+ struct net_device_stats stats; -+ spinlock_t lock; -+ -+ /* debug /proc entry */ -+ struct proc_dir_entry *ps; -+ int dma_halt_cnt; int dma_run_cnt; -+}; -+ -+extern unsigned int idt_cpu_freq; -+ -+/* Index to functions, as function prototypes. */ -+static int rc32434_open(struct net_device *dev); -+static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev); -+static void rc32434_mii_handler(unsigned long data); -+static irqreturn_t rc32434_und_interrupt(int irq, void *dev_id); -+static irqreturn_t rc32434_rx_dma_interrupt(int irq, void *dev_id); -+static irqreturn_t rc32434_tx_dma_interrupt(int irq, void *dev_id); -+#ifdef RC32434_REVISION -+static irqreturn_t rc32434_ovr_interrupt(int irq, void *dev_id); -+#endif -+static int rc32434_close(struct net_device *dev); -+static struct net_device_stats *rc32434_get_stats(struct net_device *dev); -+static void rc32434_multicast_list(struct net_device *dev); -+static int rc32434_init(struct net_device *dev); -+static void rc32434_tx_timeout(struct net_device *dev); -+ -+static void rc32434_tx_tasklet(unsigned long tx_data_dev); -+#ifdef CONFIG_IDT_USE_NAPI -+static int rc32434_poll(struct net_device *rx_data_dev, int *budget); -+#else -+static void rc32434_rx_tasklet(unsigned long rx_data_dev); -+#endif -+static void rc32434_cleanup_module(void); -+ -+ -+static inline void rc32434_abort_dma(struct net_device *dev, DMA_Chan_t ch) -+{ -+ if (__raw_readl(&ch->dmac) & DMAC_run_m) { -+ __raw_writel(0x10, &ch->dmac); -+ -+ while (!(__raw_readl(&ch->dmas) & DMAS_h_m)) -+ dev->trans_start = jiffies; -+ -+ __raw_writel(0, &ch->dmas); -+ } -+ -+ __raw_writel(0, &ch->dmadptr); -+ __raw_writel(0, &ch->dmandptr); -+} + |