diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/net/Space.c | 4 | ||||
| -rw-r--r-- | drivers/net/macmace.c | 591 |
3 files changed, 364 insertions, 235 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 092e4cf0743..69dba62e0ba 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -337,8 +337,8 @@ config MACSONIC be called macsonic. config MACMACE - bool "Macintosh (AV) onboard MACE ethernet (EXPERIMENTAL)" - depends on NET_ETHERNET && MAC && EXPERIMENTAL + bool "Macintosh (AV) onboard MACE ethernet" + depends on NET_ETHERNET && MAC select CRC32 help Support for the onboard AMD 79C940 MACE Ethernet controller used in diff --git a/drivers/net/Space.c b/drivers/net/Space.c index dd8ed456c8b..1c3e293fbaf 100644 --- a/drivers/net/Space.c +++ b/drivers/net/Space.c @@ -83,7 +83,6 @@ extern struct net_device *bagetlance_probe(int unit); extern struct net_device *mvme147lance_probe(int unit); extern struct net_device *tc515_probe(int unit); extern struct net_device *lance_probe(int unit); -extern struct net_device *mace_probe(int unit); extern struct net_device *mac8390_probe(int unit); extern struct net_device *mac89x0_probe(int unit); extern struct net_device *mc32_probe(int unit); @@ -274,9 +273,6 @@ static struct devprobe2 m68k_probes[] __initdata = { #ifdef CONFIG_MVME147_NET /* MVME147 internal Ethernet */ {mvme147lance_probe, 0}, #endif -#ifdef CONFIG_MACMACE /* Mac 68k Quadra AV builtin Ethernet */ - {mace_probe, 0}, -#endif #ifdef CONFIG_MAC8390 /* NuBus NS8390-based cards */ {mac8390_probe, 0}, #endif diff --git a/drivers/net/macmace.c b/drivers/net/macmace.c index 27911c07558..fef3193121f 100644 --- a/drivers/net/macmace.c +++ b/drivers/net/macmace.c @@ -12,6 +12,11 @@ * Copyright (C) 1998 Alan Cox <alan@redhat.com> * * Modified heavily by Joshua M. Thompson based on Dave Huang's NetBSD driver + * + * Copyright (C) 2007 Finn Thain + * + * Converted to DMA API, converted to unified driver model, + * sync'd some routines with mace.c and fixed various bugs. */ @@ -23,8 +28,9 @@ #include <linux/string.h> #include <linux/crc32.h> #include <linux/bitrev.h> +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/irq.h> #include <asm/macintosh.h> #include <asm/macints.h> @@ -32,13 +38,20 @@ #include <asm/page.h> #include "mace.h" -#define N_TX_RING 1 -#define N_RX_RING 8 -#define N_RX_PAGES ((N_RX_RING * 0x0800 + PAGE_SIZE - 1) / PAGE_SIZE) +static char mac_mace_string[] = "macmace"; +static struct platform_device *mac_mace_device; + +#define N_TX_BUFF_ORDER 0 +#define N_TX_RING (1 << N_TX_BUFF_ORDER) +#define N_RX_BUFF_ORDER 3 +#define N_RX_RING (1 << N_RX_BUFF_ORDER) + #define TX_TIMEOUT HZ -/* Bits in transmit DMA status */ -#define TX_DMA_ERR 0x80 +#define MACE_BUFF_SIZE 0x800 + +/* Chip rev needs workaround on HW & multicast addr change */ +#define BROKEN_ADDRCHG_REV 0x0941 /* The MACE is simply wired down on a Mac68K box */ @@ -47,40 +60,46 @@ struct mace_data { volatile struct mace *mace; - volatile unsigned char *tx_ring; - volatile unsigned char *tx_ring_phys; - volatile unsigned char *rx_ring; - volatile unsigned char *rx_ring_phys; + unsigned char *tx_ring; + dma_addr_t tx_ring_phys; + unsigned char *rx_ring; + dma_addr_t rx_ring_phys; int dma_intr; struct net_device_stats stats; int rx_slot, rx_tail; int tx_slot, tx_sloti, tx_count; + int chipid; + struct device *device; }; struct mace_frame { - u16 len; - u16 status; - u16 rntpc; - u16 rcvcc; - u32 pad1; - u32 pad2; + u8 rcvcnt; + u8 pad1; + u8 rcvsts; + u8 pad2; + u8 rntpc; + u8 pad3; + u8 rcvcc; + u8 pad4; + u32 pad5; + u32 pad6; u8 data[1]; /* And frame continues.. */ }; #define PRIV_BYTES sizeof(struct mace_data) -extern void psc_debug_dump(void); - static int mace_open(struct net_device *dev); static int mace_close(struct net_device *dev); static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev); static struct net_device_stats *mace_stats(struct net_device *dev); static void mace_set_multicast(struct net_device *dev); static int mace_set_address(struct net_device *dev, void *addr); +static void mace_reset(struct net_device *dev); static irqreturn_t mace_interrupt(int irq, void *dev_id); static irqreturn_t mace_dma_intr(int irq, void *dev_id); static void mace_tx_timeout(struct net_device *dev); +static void __mace_set_address(struct net_device *dev, void *addr); /* * Load a receive DMA channel with a base address and ring length @@ -88,7 +107,7 @@ static void mace_tx_timeout(struct net_device *dev); static void mace_load_rxdma_base(struct net_device *dev, int set) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); psc_write_word(PSC_ENETRD_CMD + set, 0x0100); psc_write_long(PSC_ENETRD_ADDR + set, (u32) mp->rx_ring_phys); @@ -103,7 +122,7 @@ static void mace_load_rxdma_base(struct net_device *dev, int set) static void mace_rxdma_reset(struct net_device *dev) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mace = mp->mace; u8 maccc = mace->maccc; @@ -130,7 +149,7 @@ static void mace_rxdma_reset(struct net_device *dev) static void mace_txdma_reset(struct net_device *dev) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mace = mp->mace; u8 maccc; @@ -168,7 +187,7 @@ static void mace_dma_off(struct net_device *dev) * model of Macintrash has a MACE (AV macintoshes) */ -struct net_device *mace_probe(int unit) +static int __devinit mace_probe(struct platform_device *pdev) { int j; struct mace_data *mp; @@ -179,24 +198,28 @@ struct net_device *mace_probe(int unit) int err; if (found || macintosh_config->ether_type != MAC_ETHER_MACE) - return ERR_PTR(-ENODEV); + return -ENODEV; found = 1; /* prevent 'finding' one on every device probe */ dev = alloc_etherdev(PRIV_BYTES); if (!dev) - return ERR_PTR(-ENOMEM); + return -ENOMEM; - if (unit >= 0) - sprintf(dev->name, "eth%d", unit); + mp = netdev_priv(dev); + + mp->device = &pdev->dev; + SET_NETDEV_DEV(dev, &pdev->dev); + SET_MODULE_OWNER(dev); - mp = (struct mace_data *) dev->priv; dev->base_addr = (u32)MACE_BASE; mp->mace = (volatile struct mace *) MACE_BASE; dev->irq = IRQ_MAC_MACE; mp->dma_intr = IRQ_MAC_MACE_DMA; + mp->chipid = mp->mace->chipid_hi << 8 | mp->mace->chipid_lo; + /* * The PROM contains 8 bytes which total 0xFF when XOR'd * together. Due to the usual peculiar apple brain damage @@ -217,7 +240,7 @@ struct net_device *mace_probe(int unit) if (checksum != 0xFF) { free_netdev(dev); - return ERR_PTR(-ENODEV); + return -ENODEV; } memset(&mp->stats, 0, sizeof(mp->stats)); @@ -237,22 +260,98 @@ struct net_device *mace_probe(int unit) err = register_netdev(dev); if (!err) - return dev; + return 0; free_netdev(dev); - return ERR_PTR(err); + return err; +} + +/* + * Reset the chip. + */ + +static void mace_reset(struct net_device *dev) +{ + struct mace_data *mp = netdev_priv(dev); + volatile struct mace *mb = mp->mace; + int i; + + /* soft-reset the chip */ + i = 200; + while (--i) { + mb->biucc = SWRST; + if (mb->biucc & SWRST) { + udelay(10); + continue; + } + break; + } + if (!i) { + printk(KERN_ERR "macmace: cannot reset chip!\n"); + return; + } + + mb->maccc = 0; /* turn off tx, rx */ + mb->imr = 0xFF; /* disable all intrs for now */ + i = mb->ir; + + mb->biucc = XMTSP_64; + mb->utr = RTRD; + mb->fifocc = XMTFW_8 | RCVFW_64 | XMTFWU | RCVFWU; + + mb->xmtfc = AUTO_PAD_XMIT; /* auto-pad short frames */ + mb->rcvfc = 0; + + /* load up the hardware address */ + __mace_set_address(dev, dev->dev_addr); + + /* clear the multicast filter */ + if (mp->chipid == BROKEN_ADDRCHG_REV) + mb->iac = LOGADDR; + else { + mb->iac = ADDRCHG | LOGADDR; + while ((mb->iac & ADDRCHG) != 0) + ; + } + for (i = 0; i < 8; ++i) + mb->ladrf = 0; + + /* done changing address */ + if (mp->chipid != BROKEN_ADDRCHG_REV) + mb->iac = 0; + + mb->plscc = PORTSEL_AUI; } /* * Load the address on a mace controller. */ -static int mace_set_address(struct net_device *dev, void *addr) +static void __mace_set_address(struct net_device *dev, void *addr) { - unsigned char *p = addr; - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mb = mp->mace; + unsigned char *p = addr; int i; + + /* load up the hardware address */ + if (mp->chipid == BROKEN_ADDRCHG_REV) + mb->iac = PHYADDR; + else { + mb->iac = ADDRCHG | PHYADDR; + while ((mb->iac & ADDRCHG) != 0) + ; + } + for (i = 0; i < 6; ++i) + mb->padr = dev->dev_addr[i] = p[i]; + if (mp->chipid != BROKEN_ADDRCHG_REV) + mb->iac = 0; +} + +static int mace_set_address(struct net_device *dev, void *addr) +{ + struct mace_data *mp = netdev_priv(dev); + volatile struct mace *mb = mp->mace; unsigned long flags; u8 maccc; @@ -260,15 +359,10 @@ static int mace_set_address(struct net_device *dev, void *addr) maccc = mb->maccc; - /* load up the hardware address */ - mb->iac = ADDRCHG | PHYADDR; - while ((mb->iac & ADDRCHG) != 0); - - for (i = 0; i < 6; ++i) { - mb->padr = dev->dev_addr[i] = p[i]; - } + __mace_set_address(dev, addr); mb->maccc = maccc; + local_irq_restore(flags); return 0; @@ -281,31 +375,11 @@ static int mace_set_address(struct net_device *dev, void *addr) static int mace_open(struct net_device *dev) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mb = mp->mace; -#if 0 - int i; - i = 200; - while (--i) { - mb->biucc = SWRST; - if (mb->biucc & SWRST) { - udelay(10); - continue; - } - break; - } - if (!i) { - printk(KERN_ERR "%s: software reset failed!!\n", dev->name); - return -EAGAIN; - } -#endif - - mb->biucc = XMTSP_64; - mb->fifocc = XMTFW_16 | RCVFW_64 | XMTFWU | RCVFWU | XMTBRST | RCVBRST; - mb->xmtfc = AUTO_PAD_XMIT; - mb->plscc = PORTSEL_AUI; - /* mb->utr = RTRD; */ + /* reset the chip */ + mace_reset(dev); if (request_irq(dev->irq, mace_interrupt, 0, dev->name, dev)) { printk(KERN_ERR "%s: can't get irq %d\n", dev->name, dev->irq); @@ -319,25 +393,21 @@ static int mace_open(struct net_device *dev) /* Allocate the DMA ring buffers */ - mp->rx_ring = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, N_RX_PAGES); - mp->tx_ring = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, 0); - - if (mp->tx_ring==NULL || mp->rx_ring==NULL) { - if (mp->rx_ring) free_pages((u32) mp->rx_ring, N_RX_PAGES); - if (mp->tx_ring) free_pages((u32) mp->tx_ring, 0); - free_irq(dev->irq, dev); - free_irq(mp->dma_intr, dev); - printk(KERN_ERR "%s: unable to allocate DMA buffers\n", dev->name); - return -ENOMEM; + mp->tx_ring = dma_alloc_coherent(mp->device, + N_TX_RING * MACE_BUFF_SIZE, + &mp->tx_ring_phys, GFP_KERNEL); + if (mp->tx_ring == NULL) { + printk(KERN_ERR "%s: unable to allocate DMA tx buffers\n", dev->name); + goto out1; } - mp->rx_ring_phys = (unsigned char *) virt_to_bus((void *)mp->rx_ring); - mp->tx_ring_phys = (unsigned char *) virt_to_bus((void *)mp->tx_ring); - - /* We want the Rx buffer to be uncached and the Tx buffer to be writethrough */ - - kernel_set_cachemode((void *)mp->rx_ring, N_RX_PAGES * PAGE_SIZE, IOMAP_NOCACHE_NONSER); - kernel_set_cachemode((void *)mp->tx_ring, PAGE_SIZE, IOMAP_WRITETHROUGH); + mp->rx_ring = dma_alloc_coherent(mp->device, + N_RX_RING * MACE_BUFF_SIZE, + &mp->rx_ring_phys, GFP_KERNEL); + if (mp->rx_ring == NULL) { + printk(KERN_ERR "%s: unable to allocate DMA rx buffers\n", dev->name); + goto out2; + } mace_dma_off(dev); @@ -348,34 +418,22 @@ static int mace_open(struct net_device *dev) psc_write_word(PSC_ENETWR_CTL, 0x0400); psc_write_word(PSC_ENETRD_CTL, 0x0400); -#if 0 - /* load up the hardware address */ - - mb->iac = ADDRCHG | PHYADDR; - - while ((mb->iac & ADDRCHG) != 0); - - for (i = 0; i < 6; ++i) - mb->padr = dev->dev_addr[i]; - - /* clear the multicast filter */ - mb->iac = ADDRCHG | LOGADDR; - - while ((mb->iac & ADDRCHG) != 0); - - for (i = 0; i < 8; ++i) - mb->ladrf = 0; - - mb->plscc = PORTSEL_GPSI + ENPLSIO; - - mb->maccc = ENXMT | ENRCV; - mb->imr = RCVINT; -#endif - mace_rxdma_reset(dev); mace_txdma_reset(dev); + /* turn it on! */ + mb->maccc = ENXMT | ENRCV; + /* enable all interrupts except receive interrupts */ + mb->imr = RCVINT; return 0; + +out2: + dma_free_coherent(mp->device, N_TX_RING * MACE_BUFF_SIZE, + mp->tx_ring, mp->tx_ring_phys); +out1: + free_irq(dev->irq, dev); + free_irq(mp->dma_intr, dev); + return -ENOMEM; } /* @@ -384,19 +442,13 @@ static int mace_open(struct net_device *dev) static int mace_close(struct net_device *dev) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mb = mp->mace; mb->maccc = 0; /* disable rx and tx */ mb->imr = 0xFF; /* disable all irqs */ mace_dma_off(dev); /* disable rx and tx dma */ - free_irq(dev->irq, dev); - free_irq(IRQ_MAC_MACE_DMA, dev); - - free_pages((u32) mp->rx_ring, N_RX_PAGES); - free_pages((u32) mp->tx_ring, 0); - return 0; } @@ -406,15 +458,20 @@ static int mace_close(struct net_device *dev) static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); + unsigned long flags; - /* Stop the queue if the buffer is full */ + /* Stop the queue since there's only the one buffer */ + local_irq_save(flags); + netif_stop_queue(dev); if (!mp->tx_count) { - netif_stop_queue(dev); - return 1; + printk(KERN_ERR "macmace: tx queue running but no free buffers.\n"); + local_irq_restore(flags); + return NETDEV_TX_BUSY; } mp->tx_count--; + local_irq_restore(flags); mp->stats.tx_packets++; mp->stats.tx_bytes += skb->len; @@ -432,23 +489,26 @@ static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev) dev_kfree_skb(skb); - return 0; + dev->trans_start = jiffies; + return NETDEV_TX_OK; } static struct net_device_stats *mace_stats(struct net_device *dev) { - struct mace_data *p = (struct mace_data *) dev->priv; - return &p->stats; + struct mace_data *mp = netdev_priv(dev); + return &mp->stats; } static void mace_set_multicast(struct net_device *dev) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mb = mp->mace; int i, j; u32 crc; u8 maccc; + unsigned long flags; + local_irq_save(flags); maccc = mb->maccc; mb->maccc &= ~PROM; @@ -473,116 +533,122 @@ static void mace_set_multicast(struct net_device *dev) } } - mb->iac = ADDRCHG | LOGADDR; - while (mb->iac & ADDRCHG); - - for (i = 0; i < 8; ++i) { - mb->ladrf = multicast_filter[i]; + if (mp->chipid == BROKEN_ADDRCHG_REV) + mb->iac = LOGADDR; + else { + mb->iac = ADDRCHG | LOGADDR; + while ((mb->iac & ADDRCHG) != 0) + ; } + for (i = 0; i < 8; ++i) + mb->ladrf = multicast_filter[i]; + if (mp->chipid != BROKEN_ADDRCHG_REV) + mb->iac = 0; } mb->maccc = maccc; + local_irq_restore(flags); } -/* - * Miscellaneous interrupts are handled here. We may end up - * having to bash the chip on the head for bad errors - */ - static void mace_handle_misc_intrs(struct mace_data *mp, int intr) { volatile struct mace *mb = mp->mace; static int mace_babbles, mace_jabbers; - if (intr & MPCO) { + if (intr & MPCO) mp->stats.rx_missed_errors += 256; - } - mp->stats.rx_missed_errors += mb->mpc; /* reading clears it */ - - if (intr & RNTPCO) { + mp->stats.rx_missed_errors += mb->mpc; /* reading clears it */ + if (intr & RNTPCO) mp->stats.rx_length_errors += 256; - } - mp->stats.rx_length_errors += mb->rntpc; /* reading clears it */ - - if (intr & CERR) { + mp->stats.rx_length_errors += mb->rntpc; /* reading clears it */ + if (intr & CERR) ++mp->stats.tx_heartbeat_errors; - } - if (intr & BABBLE) { - if (mace_babbles++ < 4) { - printk(KERN_DEBUG "mace: babbling transmitter\n"); - } - } - if (intr & JABBER) { - if (mace_jabbers++ < 4) { - printk(KERN_DEBUG "mace: jabbering transceiver\n"); - } - } + if (intr & BABBLE) + if (mace_babbles++ < 4) + printk(KERN_DEBUG "macmace: babbling transmitter\n"); + if (intr & JABBER) + if (mace_jabbers++ < 4) + printk(KERN_DEBUG "macmace: jabbering transceiver\n"); } -/* - * A transmit error has occurred. (We kick the transmit side from - * the DMA completion) - */ - -static void mace_xmit_error(struct net_device *dev) +static irqreturn_t mace_interrupt(int irq, void *dev_id) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct net_device *dev = (struct net_device *) dev_id; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mb = mp->mace; - u8 xmtfs, xmtrc; + int intr, fs; + unsigned int flags; - xmtfs = mb->xmtfs; - xmtrc = mb->xmtrc; + /* don't want the dma interrupt handler to fire */ + local_irq_save(flags); - if (xmtfs & XMTSV) { - if (xmtfs & UFLO) { - printk("%s: DMA underrun.\n", dev->name); - mp->stats.tx_errors++; - mp->stats.tx_fifo_errors++; - mace_txdma_reset(dev); + intr = mb->ir; /* read interrupt register */ + mace_handle_misc_intrs(mp, intr); + + if (intr & XMTINT) { + fs = mb->xmtfs; + if ((fs & XMTSV) == 0) { + printk(KERN_ERR "macmace: xmtfs not valid! (fs=%x)\n", fs); + mace_reset(dev); + /* + * XXX mace likes to hang the machine after a xmtfs error. + * This is hard to reproduce, reseting *may* help + */ } - if (xmtfs & RTRY) { - mp->stats.collisions++; + /* dma should have finished */ + if (!mp->tx_count) { + printk(KERN_DEBUG "macmace: tx ring ran out? (fs=%x)\n", fs); + } + /* Update stats */ + if (fs & (UFLO|LCOL|LCAR|RTRY)) { + ++mp->stats.tx_errors; + if (fs & LCAR) + ++mp->stats.tx_carrier_errors; + else if (fs & (UFLO|LCOL|RTRY)) { + ++mp->stats.tx_aborted_errors; + if (mb->xmtfs & UFLO) { + printk(KERN_ERR "%s: DMA underrun.\n", dev->name); + mp->stats.tx_fifo_errors++; + mace_txdma_reset(dev); + } + } } } -} -/* - * A receive interrupt occurred. - */ + if (mp->tx_count) + netif_wake_queue(dev); -static void mace_recv_interrupt(struct net_device *dev) -{ -/* struct mace_data *mp = (struct mace_data *) dev->priv; */ -// volatile struct mace *mb = mp->mace; -} + local_irq_restore(flags); -/* - * Process the chip interrupt - */ + return IRQ_HANDLED; +} -static irqreturn_t mace_interrupt(int irq, void *dev_id) +static void mace_tx_timeout(struct net_device *dev) { - struct net_device *dev = (struct net_device *) dev_id; - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); volatile struct mace *mb = mp->mace; - u8 ir; + unsigned long flags; - ir = mb->ir; - mace_handle_misc_intrs(mp, ir); + local_irq_save(flags); - if (ir & XMTINT) { - mace_xmit_error(dev); - } - if (ir & RCVINT) { - mace_recv_interrupt(dev); - } - return IRQ_HANDLED; -} + /* turn off both tx and rx and reset the chip */ + mb->maccc = 0; + printk(KERN_ERR "macmace: transmit timeout - resetting\n"); + mace_txdma_reset(dev); + mace_reset(dev); -static void mace_tx_timeout(struct net_device *dev) -{ -/* struct mace_data *mp = (struct mace_data *) dev->priv; */ -// volatile struct mace *mb = mp->mace; + /* restart rx dma */ + mace_rxdma_reset(dev); + + mp->tx_count = N_TX_RING; + netif_wake_queue(dev); + + /* turn it on! */ + mb->maccc = ENXMT | ENRCV; + /* enable all interrupts except receive interrupts */ + mb->imr = RCVINT; + + local_irq_restore(flags); } /* @@ -591,40 +657,39 @@ static void mace_tx_timeout(struct net_device *dev) static void mace_dma_rx_frame(struct net_device *dev, struct mace_frame *mf) { - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); struct sk_buff *skb; + unsigned int frame_status = mf->rcvsts; - if (mf->status & RS_OFLO) { - printk("%s: fifo overflow.\n", dev->name); - mp->stats.rx_errors++; - mp->stats.rx_fifo_errors++; - } - if (mf->status&(RS_CLSN|RS_FRAMERR|RS_FCSERR)) + if (frame_status & (RS_OFLO | RS_CLSN | RS_FRAMERR | RS_FCSERR)) { mp->stats.rx_errors++; + if (frame_status & RS_OFLO) { + printk(KERN_DEBUG "%s: fifo overflow.\n", dev->name); + mp->stats.rx_fifo_errors++; + } + if (frame_status & RS_CLSN) + mp->stats.collisions++; + if (frame_status & RS_FRAMERR) + mp->stats.rx_frame_errors++; + if (frame_status & RS_FCSERR) + mp->stats.rx_crc_errors++; + } else { + unsigned int frame_length = mf->rcvcnt + ((frame_status & 0x0F) << 8 ); - if (mf->status&RS_CLSN) { - mp->stats.collisions++; - } - if (mf->status&RS_FRAMERR) { - mp->stats.rx_frame_errors++; - } - if (mf->status&RS_FCSERR) { - mp->stats.rx_crc_errors++; - } - - skb = dev_alloc_skb(mf->len+2); - if (!skb) { - mp->stats.rx_dropped++; - return; + skb = dev_alloc_skb(frame_length + 2); + if (!skb) { + mp->stats.rx_dropped++; + return; + } + skb_reserve(skb, 2); + memcpy(skb_put(skb, frame_length), mf->data, frame_length); + + skb->protocol = eth_type_trans(skb, dev); + netif_rx(skb); + dev->last_rx = jiffies; + mp->stats.rx_packets++; + mp->stats.rx_bytes += frame_length; } - skb_reserve(skb,2); - memcpy(skb_put(skb, mf->len), mf->data, mf->len); - - skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - dev->last_rx = jiffies; - mp->stats.rx_packets++; - mp->stats.rx_bytes += mf->len; } /* @@ -634,7 +699,7 @@ static void mace_dma_rx_frame(struct net_device *dev, struct mace_frame *mf) static irqreturn_t mace_dma_intr(int irq, void *dev_id) { struct net_device *dev = (struct net_device *) dev_id; - struct mace_data *mp = (struct mace_data *) dev->priv; + struct mace_data *mp = netdev_priv(dev); int left, head; u16 status; u32 baka; @@ -661,7 +726,8 @@ static irqreturn_t mace_dma_intr(int irq, void *dev_id) /* Loop through the ring buffer and process new packages */ while (mp->rx_tail < head) { - mace_dma_rx_frame(dev, (struct mace_frame *) (mp->rx_ring + (mp->rx_tail * 0x0800))); + mace_dma_rx_frame(dev, (struct mace_frame*) (mp->rx_ring + + (mp->rx_tail * MACE_BUFF_SIZE))); mp->rx_tail++; } @@ -688,9 +754,76 @@ static irqreturn_t mace_dma_intr(int irq, void *dev_id) psc_write_word(PSC_ENETWR_CMD + mp->tx_sloti, 0x0100); mp->tx_sloti ^= 0x10; mp->tx_count++; - netif_wake_queue(dev); } return IRQ_HANDLED; } MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Macintosh MACE ethernet driver"); + +static int __devexit mac_mace_device_remove (struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct mace_data *mp = netdev_priv(dev); + + unregister_netdev(dev); + + free_irq(dev->irq, dev); + free_irq(IRQ_MAC_MACE_DMA, dev); + + dma_free_coherent(mp->device, N_RX_RING * MACE_BUFF_SIZE, + mp->rx_ring, mp->rx_ring_phys); + dma_free_coherent(mp->device, N_TX_RING * MACE_BUFF_SIZE, + mp->tx_ring, mp->tx_ring_phys); + + free_netdev(dev); + + return 0; +} + +static struct platform_driver mac_mace_driver = { + .probe = mace_probe, + .remove = __devexit_p(mac_mace_device_remove), + .driver = { + .name = mac_mace_string, + }, +}; + +static int __init mac_mace_init_module(void) +{ + int err; + + if ((err = platform_driver_register(&mac_mace_driver))) { + printk(KERN_ERR "Driver registration failed\n"); + return err; + } + + mac_mace_device = platform_device_alloc(mac_mace_string, 0); + if (!mac_mace_device) + goto out_unregister; + + if (platform_device_add(mac_mace_device)) { + platform_device_put(mac_mace_device); + mac_mace_device = NULL; + } + + return 0; + +out_unregister: + platform_driver_unregister(&mac_mace_driver); + + return -ENOMEM; +} + +static void __exit mac_mace_cleanup_module(void) +{ + platform_driver_unregister(&mac_mace_driver); + + if (mac_mace_device) { + platform_device_unregister(mac_mace_device); + mac_mace_device = NULL; + } +} + +module_init(mac_mace_init_module); +module_exit(mac_mace_cleanup_module); |