Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 8 Oct 2002 16:40:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 8 Oct 2002 15:10:07 -0400 Received: from lightning.swansea.linux.org.uk ([194.168.151.1]:19216 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Tue, 8 Oct 2002 15:03:41 -0400 Subject: PATCH: 2.5 cleanup + 2.4 merge of depca To: torvalds@transmeta.com, linux-kernel@vger.kernel.org Date: Tue, 8 Oct 2002 19:59:44 +0100 (BST) X-Mailer: ELM [version 2.5 PL6] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 91320 Lines: 2876 Yes this is big but 2.4 has been indented, updated and there wasnt a sane way to deal with it diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.2.5.41/drivers/net/depca.c linux.2.5.41-ac1/drivers/net/depca.c --- linux.2.5.41/drivers/net/depca.c 2002-10-02 21:33:29.000000000 +0100 +++ linux.2.5.41-ac1/drivers/net/depca.c 2002-10-03 18:24:07.000000000 +0100 @@ -267,8 +267,7 @@ #include "depca.h" -static char version[] __initdata = - "depca.c:v0.53 2001/1/12 davies@maniac.ultranet.com\n"; +static char version[] __initdata = "depca.c:v0.53 2001/1/12 davies@maniac.ultranet.com\n"; #ifdef DEPCA_DEBUG static int depca_debug = DEPCA_DEBUG; @@ -276,7 +275,7 @@ static int depca_debug = 1; #endif -#define DEPCA_NDA 0xffe0 /* No Device Address */ +#define DEPCA_NDA 0xffe0 /* No Device Address */ #define TX_TIMEOUT (1*HZ) @@ -293,15 +292,15 @@ ** ** total_memory = NUM_RX_DESC*(8+RX_BUFF_SZ) + NUM_TX_DESC*(8+TX_BUFF_SZ) */ -#define NUM_RX_DESC 8 /* Number of RX descriptors */ -#define NUM_TX_DESC 8 /* Number of TX descriptors */ -#define RX_BUFF_SZ 1536 /* Buffer size for each Rx buffer */ -#define TX_BUFF_SZ 1536 /* Buffer size for each Tx buffer */ +#define NUM_RX_DESC 8 /* Number of RX descriptors */ +#define NUM_TX_DESC 8 /* Number of TX descriptors */ +#define RX_BUFF_SZ 1536 /* Buffer size for each Rx buffer */ +#define TX_BUFF_SZ 1536 /* Buffer size for each Tx buffer */ /* ** EISA bus defines */ -#define DEPCA_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */ +#define DEPCA_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */ #define MAX_EISA_SLOTS 16 #define EISA_SLOT_INC 0x1000 @@ -328,7 +327,7 @@ "DE422",\ ""} static enum { - DEPCA, de100, de101, de200, de201, de202, de210, de212, de422, unknown + DEPCA, de100, de101, de200, de201, de202, de210, de212, de422, unknown } adapter; /* @@ -340,81 +339,81 @@ /* ** Memory Alignment. Each descriptor is 4 longwords long. To force a ** particular alignment on the TX descriptor, adjust DESC_SKIP_LEN and -** DESC_ALIGN. ALIGN aligns the start address of the private memory area +** DESC_ALIGN. DEPCA_ALIGN aligns the start address of the private memory area ** and hence the RX descriptor ring's first entry. */ -#define ALIGN4 ((u_long)4 - 1) /* 1 longword align */ -#define ALIGN8 ((u_long)8 - 1) /* 2 longword (quadword) align */ -#define ALIGN ALIGN8 /* Keep the LANCE happy... */ +#define DEPCA_ALIGN4 ((u_long)4 - 1) /* 1 longword align */ +#define DEPCA_ALIGN8 ((u_long)8 - 1) /* 2 longword (quadword) align */ +#define DEPCA_ALIGN DEPCA_ALIGN8 /* Keep the LANCE happy... */ /* ** The DEPCA Rx and Tx ring descriptors. */ struct depca_rx_desc { - volatile s32 base; - s16 buf_length; /* This length is negative 2's complement! */ - s16 msg_length; /* This length is "normal". */ + volatile s32 base; + s16 buf_length; /* This length is negative 2's complement! */ + s16 msg_length; /* This length is "normal". */ }; struct depca_tx_desc { - volatile s32 base; - s16 length; /* This length is negative 2's complement! */ - s16 misc; /* Errors and TDR info */ + volatile s32 base; + s16 length; /* This length is negative 2's complement! */ + s16 misc; /* Errors and TDR info */ }; -#define LA_MASK 0x0000ffff /* LANCE address mask for mapping network RAM +#define LA_MASK 0x0000ffff /* LANCE address mask for mapping network RAM to LANCE memory address space */ /* ** The Lance initialization block, described in databook, in common memory. */ struct depca_init { - u16 mode; /* Mode register */ - u8 phys_addr[ETH_ALEN]; /* Physical ethernet address */ - u8 mcast_table[8]; /* Multicast Hash Table. */ - u32 rx_ring; /* Rx ring base pointer & ring length */ - u32 tx_ring; /* Tx ring base pointer & ring length */ + u16 mode; /* Mode register */ + u8 phys_addr[ETH_ALEN]; /* Physical ethernet address */ + u8 mcast_table[8]; /* Multicast Hash Table. */ + u32 rx_ring; /* Rx ring base pointer & ring length */ + u32 tx_ring; /* Tx ring base pointer & ring length */ }; #define DEPCA_PKT_STAT_SZ 16 -#define DEPCA_PKT_BIN_SZ 128 /* Should be >=100 unless you - increase DEPCA_PKT_STAT_SZ */ +#define DEPCA_PKT_BIN_SZ 128 /* Should be >=100 unless you + increase DEPCA_PKT_STAT_SZ */ struct depca_private { - char devname[DEPCA_STRLEN]; /* Device Product String */ - char adapter_name[DEPCA_STRLEN];/* /proc/ioports string */ - char adapter; /* Adapter type */ - char mca_slot; /* MCA slot, if MCA else -1 */ - struct depca_init init_block;/* Shadow Initialization block */ + char devname[DEPCA_STRLEN]; /* Device Product String */ + char adapter_name[DEPCA_STRLEN]; /* /proc/ioports string */ + char adapter; /* Adapter type */ + char mca_slot; /* MCA slot, if MCA else -1 */ + struct depca_init init_block; /* Shadow Initialization block */ /* CPU address space fields */ - struct depca_rx_desc *rx_ring; /* Pointer to start of RX descriptor ring */ - struct depca_tx_desc *tx_ring; /* Pointer to start of TX descriptor ring */ - void *rx_buff[NUM_RX_DESC]; /* CPU virt address of sh'd memory buffs */ - void *tx_buff[NUM_TX_DESC]; /* CPU virt address of sh'd memory buffs */ - void *sh_mem; /* CPU mapped virt address of device RAM */ + struct depca_rx_desc *rx_ring; /* Pointer to start of RX descriptor ring */ + struct depca_tx_desc *tx_ring; /* Pointer to start of TX descriptor ring */ + void *rx_buff[NUM_RX_DESC]; /* CPU virt address of sh'd memory buffs */ + void *tx_buff[NUM_TX_DESC]; /* CPU virt address of sh'd memory buffs */ + void *sh_mem; /* CPU mapped virt address of device RAM */ /* Device address space fields */ - u_long device_ram_start; /* Start of RAM in device addr space */ + u_long device_ram_start; /* Start of RAM in device addr space */ /* Offsets used in both address spaces */ - u_long rx_ring_offset; /* Offset from start of RAM to rx_ring */ - u_long tx_ring_offset; /* Offset from start of RAM to tx_ring */ - u_long buffs_offset; /* LANCE Rx and Tx buffers start address. */ + u_long rx_ring_offset; /* Offset from start of RAM to rx_ring */ + u_long tx_ring_offset; /* Offset from start of RAM to tx_ring */ + u_long buffs_offset; /* LANCE Rx and Tx buffers start address. */ /* Kernel-only (not device) fields */ - int rx_new, tx_new; /* The next free ring entry */ - int rx_old, tx_old; /* The ring entries to be free()ed. */ - struct net_device_stats stats; - spinlock_t lock; - struct { /* Private stats counters */ - u32 bins[DEPCA_PKT_STAT_SZ]; - u32 unicast; - u32 multicast; - u32 broadcast; - u32 excessive_collisions; - u32 tx_underruns; - u32 excessive_underruns; - } pktStats; - int txRingMask; /* TX ring mask */ - int rxRingMask; /* RX ring mask */ - s32 rx_rlen; /* log2(rxRingMask+1) for the descriptors */ - s32 tx_rlen; /* log2(txRingMask+1) for the descriptors */ + int rx_new, tx_new; /* The next free ring entry */ + int rx_old, tx_old; /* The ring entries to be free()ed. */ + struct net_device_stats stats; + spinlock_t lock; + struct { /* Private stats counters */ + u32 bins[DEPCA_PKT_STAT_SZ]; + u32 unicast; + u32 multicast; + u32 broadcast; + u32 excessive_collisions; + u32 tx_underruns; + u32 excessive_underruns; + } pktStats; + int txRingMask; /* TX ring mask */ + int rxRingMask; /* RX ring mask */ + s32 rx_rlen; /* log2(rxRingMask+1) for the descriptors */ + s32 tx_rlen; /* log2(txRingMask+1) for the descriptors */ }; /* @@ -431,61 +430,61 @@ /* ** Public Functions */ -static int depca_open(struct net_device *dev); -static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev); -static void depca_interrupt(int irq, void *dev_id, struct pt_regs *regs); -static int depca_close(struct net_device *dev); -static int depca_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -static void depca_tx_timeout (struct net_device *dev); +static int depca_open(struct net_device *dev); +static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev); +static void depca_interrupt(int irq, void *dev_id, struct pt_regs *regs); +static int depca_close(struct net_device *dev); +static int depca_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); +static void depca_tx_timeout(struct net_device *dev); static struct net_device_stats *depca_get_stats(struct net_device *dev); -static void set_multicast_list(struct net_device *dev); +static void set_multicast_list(struct net_device *dev); /* ** Private functions */ -static int depca_hw_init(struct net_device *dev, u_long ioaddr, int mca_slot); -static void depca_init_ring(struct net_device *dev); -static int depca_rx(struct net_device *dev); -static int depca_tx(struct net_device *dev); - -static void LoadCSRs(struct net_device *dev); -static int InitRestartDepca(struct net_device *dev); -static void DepcaSignature(char *name, u_long paddr); -static int DevicePresent(u_long ioaddr); -static int get_hw_addr(struct net_device *dev); -static int EISA_signature(char *name, s32 eisa_id); -static void SetMulticastFilter(struct net_device *dev); -static void isa_probe(struct net_device *dev, u_long iobase); -static void eisa_probe(struct net_device *dev, u_long iobase); -#ifdef CONFIG_MCA -static void mca_probe(struct net_device *dev, u_long iobase); +static int depca_hw_init(struct net_device *dev, u_long ioaddr, int mca_slot); +static void depca_init_ring(struct net_device *dev); +static int depca_rx(struct net_device *dev); +static int depca_tx(struct net_device *dev); + +static void LoadCSRs(struct net_device *dev); +static int InitRestartDepca(struct net_device *dev); +static void DepcaSignature(char *name, u_long paddr); +static int DevicePresent(u_long ioaddr); +static int get_hw_addr(struct net_device *dev); +static int EISA_signature(char *name, s32 eisa_id); +static void SetMulticastFilter(struct net_device *dev); +static void isa_probe(struct net_device *dev, u_long iobase); +static void eisa_probe(struct net_device *dev, u_long iobase); +#ifdef CONFIG_MCA +static void mca_probe(struct net_device *dev, u_long iobase); #endif static struct net_device *alloc_device(struct net_device *dev, u_long iobase); -static int depca_dev_index(char *s); -static struct net_device *insert_device(struct net_device *dev, u_long iobase, int (*init)(struct net_device *)); -static int load_packet(struct net_device *dev, struct sk_buff *skb); -static void depca_dbg_open(struct net_device *dev); +static int depca_dev_index(char *s); +static struct net_device *insert_device(struct net_device *dev, u_long iobase, int (*init) (struct net_device *)); +static int load_packet(struct net_device *dev, struct sk_buff *skb); +static void depca_dbg_open(struct net_device *dev); #ifdef MODULE -int init_module(void); -void cleanup_module(void); -static int autoprobed = 1, loading_module = 1; +int init_module(void); +void cleanup_module(void); +static int autoprobed = 1, loading_module = 1; # else -static u_char de1xx_irq[] __initdata = {2,3,4,5,7,9,0}; -static u_char de2xx_irq[] __initdata = {5,9,10,11,15,0}; -static u_char de422_irq[] __initdata = {5,9,10,11,0}; +static u_char de1xx_irq[] __initdata = { 2, 3, 4, 5, 7, 9, 0 }; +static u_char de2xx_irq[] __initdata = { 5, 9, 10, 11, 15, 0 }; +static u_char de422_irq[] __initdata = { 5, 9, 10, 11, 0 }; static u_char *depca_irq; -static int autoprobed, loading_module; -#endif /* MODULE */ +static int autoprobed, loading_module; +#endif /* MODULE */ -static char name[DEPCA_STRLEN]; -static int num_depcas, num_eth; -static int mem; /* For loadable module assignment - use insmod mem=0x????? .... */ -static char *adapter_name; /* = '\0'; If no PROM when loadable module - use insmod adapter_name=DE??? ... - bss initializes this to zero - */ +static char name[DEPCA_STRLEN]; +static int num_depcas, num_eth; +static int mem; /* For loadable module assignment + use insmod mem=0x????? .... */ +static char *adapter_name; /* = '\0'; If no PROM when loadable module + use insmod adapter_name=DE??? ... + bss initializes this to zero + */ /* ** Miscellaneous defines... */ @@ -493,49 +492,48 @@ outw(CSR0, DEPCA_ADDR);\ outw(STOP, DEPCA_DATA) -int __init -depca_probe(struct net_device *dev) +int __init depca_probe(struct net_device *dev) { - int tmp = num_depcas, status = -ENODEV; - u_long iobase = dev->base_addr; + int tmp = num_depcas, status = -ENODEV; + u_long iobase = dev->base_addr; - SET_MODULE_OWNER(dev); + SET_MODULE_OWNER(dev); - if ((iobase == 0) && loading_module){ - printk("Autoprobing is not supported when loading a module based driver.\n"); - status = -EIO; - } else { -#ifdef CONFIG_MCA - mca_probe(dev, iobase); + if ((iobase == 0) && loading_module) { + printk("Autoprobing is not supported when loading a module based driver.\n"); + status = -EIO; + } else { +#ifdef CONFIG_MCA + mca_probe(dev, iobase); #endif - isa_probe(dev, iobase); - eisa_probe(dev, iobase); + isa_probe(dev, iobase); + eisa_probe(dev, iobase); - if ((tmp == num_depcas) && (iobase != 0) && loading_module) { - printk("%s: depca_probe() cannot find device at 0x%04lx.\n", dev->name, - iobase); - } - - /* - ** Walk the device list to check that at least one device - ** initialised OK - */ - for (; (dev->priv == NULL) && (dev->next != NULL); dev = dev->next); + if ((tmp == num_depcas) && (iobase != 0) && loading_module) { + printk("%s: depca_probe() cannot find device at 0x%04lx.\n", dev->name, iobase); + } - if (dev->priv) status = 0; - if (iobase == 0) autoprobed = 1; - } + /* + ** Walk the device list to check that at least one device + ** initialised OK + */ + for (; (dev->priv == NULL) && (dev->next != NULL); dev = dev->next); + + if (dev->priv) + status = 0; + if (iobase == 0) + autoprobed = 1; + } - return status; + return status; } -static int __init -depca_hw_init(struct net_device *dev, u_long ioaddr, int mca_slot) +static int __init depca_hw_init(struct net_device *dev, u_long ioaddr, int mca_slot) { struct depca_private *lp; - int i, j, offset, netRAM, mem_len, status=0; + int i, j, offset, netRAM, mem_len, status = 0; s16 nicsr; - u_long mem_start=0, mem_base[] = DEPCA_RAM_BASE_ADDRESSES; + u_long mem_start = 0, mem_base[] = DEPCA_RAM_BASE_ADDRESSES; STOP_DEPCA; @@ -553,19 +551,17 @@ DepcaSignature(name, mem_start); } while (!mem && mem_base[mem_chkd] && (adapter == unknown)); - if ((adapter == unknown) || !mem_start) { /* DEPCA device not found */ + if ((adapter == unknown) || !mem_start) { /* DEPCA device not found */ return -ENXIO; } dev->base_addr = ioaddr; if (mca_slot != -1) { - printk("%s: %s at 0x%04lx (MCA slot %d)", dev->name, name, - ioaddr, mca_slot); - } else if ((ioaddr & 0x0fff) == DEPCA_EISA_IO_PORTS) { /* EISA slot address */ - printk("%s: %s at 0x%04lx (EISA slot %d)", - dev->name, name, ioaddr, (int)((ioaddr>>12)&0x0f)); - } else { /* ISA port address */ + printk("%s: %s at 0x%04lx (MCA slot %d)", dev->name, name, ioaddr, mca_slot); + } else if ((ioaddr & 0x0fff) == DEPCA_EISA_IO_PORTS) { /* EISA slot address */ + printk("%s: %s at 0x%04lx (EISA slot %d)", dev->name, name, ioaddr, (int) ((ioaddr >> 12) & 0x0f)); + } else { /* ISA port address */ printk("%s: %s at 0x%04lx", dev->name, name, ioaddr); } @@ -575,7 +571,7 @@ printk(" which has an Ethernet PROM CRC error.\n"); return -ENXIO; } - for (i=0; idev_addr[i]); } printk("%2.2x", dev->dev_addr[i]); @@ -586,19 +582,16 @@ netRAM = 128; offset = 0x0000; - /* Shared Memory Base Address */ + /* Shared Memory Base Address */ if (nicsr & BUF) { - offset = 0x8000; /* 32kbyte RAM offset*/ - nicsr &= ~BS; /* DEPCA RAM in top 32k */ + offset = 0x8000; /* 32kbyte RAM offset */ + nicsr &= ~BS; /* DEPCA RAM in top 32k */ netRAM -= 32; } - mem_start += offset; /* (E)ISA start address */ - if ((mem_len = (NUM_RX_DESC*(sizeof(struct depca_rx_desc)+RX_BUFF_SZ) + - NUM_TX_DESC*(sizeof(struct depca_tx_desc)+TX_BUFF_SZ) + - sizeof(struct depca_init))) - > (netRAM<<10)) { - printk(",\n requests %dkB RAM: only %dkB is available!\n", - (mem_len >> 10), netRAM); + mem_start += offset; /* (E)ISA start address */ + if ((mem_len = (NUM_RX_DESC * (sizeof(struct depca_rx_desc) + RX_BUFF_SZ) + NUM_TX_DESC * (sizeof(struct depca_tx_desc) + TX_BUFF_SZ) + sizeof(struct depca_init))) + > (netRAM << 10)) { + printk(",\n requests %dkB RAM: only %dkB is available!\n", (mem_len >> 10), netRAM); return -ENXIO; } @@ -609,21 +602,20 @@ nicsr |= SHE; outb(nicsr, DEPCA_NICSR); } - + /* Define the device private memory */ dev->priv = (void *) kmalloc(sizeof(struct depca_private), GFP_KERNEL); if (dev->priv == NULL) return -ENOMEM; - lp = (struct depca_private *)dev->priv; - memset((char *)dev->priv, 0, sizeof(struct depca_private)); + lp = (struct depca_private *) dev->priv; + memset((char *) dev->priv, 0, sizeof(struct depca_private)); lp->adapter = adapter; lp->mca_slot = mca_slot; lp->lock = SPIN_LOCK_UNLOCKED; - sprintf(lp->adapter_name,"%s (%s)", name, dev->name); + sprintf(lp->adapter_name, "%s (%s)", name, dev->name); status = -EBUSY; if (!request_region(ioaddr, DEPCA_TOTAL_SIZE, lp->adapter_name)) { - printk(KERN_ERR "depca: I/O resource 0x%x @ 0x%lx busy\n", - DEPCA_TOTAL_SIZE, ioaddr); + printk(KERN_ERR "depca: I/O resource 0x%x @ 0x%lx busy\n", DEPCA_TOTAL_SIZE, ioaddr); goto out_priv; } @@ -635,17 +627,17 @@ goto out_region; } lp->device_ram_start = mem_start & LA_MASK; - + offset = 0; offset += sizeof(struct depca_init); /* Tx & Rx descriptors (aligned to a quadword boundary) */ - offset = (offset + ALIGN) & ~ALIGN; - lp->rx_ring = (struct depca_rx_desc *)(lp->sh_mem + offset); + offset = (offset + DEPCA_ALIGN) & ~DEPCA_ALIGN; + lp->rx_ring = (struct depca_rx_desc *) (lp->sh_mem + offset); lp->rx_ring_offset = offset; offset += (sizeof(struct depca_rx_desc) * NUM_RX_DESC); - lp->tx_ring = (struct depca_tx_desc *)(lp->sh_mem + offset); + lp->tx_ring = (struct depca_tx_desc *) (lp->sh_mem + offset); lp->tx_ring_offset = offset; offset += (sizeof(struct depca_tx_desc) * NUM_TX_DESC); @@ -657,14 +649,14 @@ lp->txRingMask = NUM_TX_DESC - 1; /* Calculate Tx/Rx RLEN size for the descriptors. */ - for (i=0, j = lp->rxRingMask; j>0; i++) { + for (i = 0, j = lp->rxRingMask; j > 0; i++) { j >>= 1; } - lp->rx_rlen = (s32)(i << 29); - for (i=0, j = lp->txRingMask; j>0; i++) { + lp->rx_rlen = (s32) (i << 29); + for (i = 0, j = lp->txRingMask; j > 0; i++) { j >>= 1; } - lp->tx_rlen = (s32)(i << 29); + lp->tx_rlen = (s32) (i << 29); /* Load the initialisation block */ depca_init_ring(dev); @@ -673,7 +665,7 @@ LoadCSRs(dev); /* Enable DEPCA board interrupts for autoprobing */ - nicsr = ((nicsr & ~IM)|IEN); + nicsr = ((nicsr & ~IM) | IEN); outb(nicsr, DEPCA_NICSR); /* To auto-IRQ we enable the initialization-done and DMA err, @@ -706,9 +698,10 @@ /* Trigger an initialization just for the interrupt. */ outw(INEA | INIT, DEPCA_DATA); - + delay = jiffies + HZ/50; - while (time_before(jiffies, delay)) ; + while (time_before(jiffies, delay)) + yield(); irqnum = probe_irq_off(irq_mask); status = -ENXIO; @@ -716,19 +709,19 @@ printk(" and failed to detect IRQ line.\n"); goto out_region; } else { - for (dev->irq=0,i=0; (depca_irq[i]) && (!dev->irq); i++) + for (dev->irq = 0, i = 0; (depca_irq[i]) && (!dev->irq); i++) if (irqnum == depca_irq[i]) { dev->irq = irqnum; printk(" and uses IRQ%d.\n", dev->irq); } - + status = -ENXIO; if (!dev->irq) { printk(" but incorrect IRQ line detected.\n"); goto out_region; } } -#endif /* MODULE */ +#endif /* MODULE */ } else { printk(" and assigned IRQ%d.\n", dev->irq); } @@ -752,65 +745,63 @@ /* Fill in the generic field of the device structure. */ ether_setup(dev); return 0; -out_region: + out_region: release_region(ioaddr, DEPCA_TOTAL_SIZE); -out_priv: + out_priv: kfree(dev->priv); dev->priv = NULL; return status; } - -static int -depca_open(struct net_device *dev) + +static int depca_open(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - u_long ioaddr = dev->base_addr; - s16 nicsr; - int status = 0; - - STOP_DEPCA; - nicsr = inb(DEPCA_NICSR); - - /* Make sure the shadow RAM is enabled */ - if (lp->adapter != DEPCA) { - nicsr |= SHE; - outb(nicsr, DEPCA_NICSR); - } - - /* Re-initialize the DEPCA... */ - depca_init_ring(dev); - LoadCSRs(dev); - - depca_dbg_open(dev); - - if (request_irq(dev->irq, &depca_interrupt, 0, lp->adapter_name, dev)) { - printk("depca_open(): Requested IRQ%d is busy\n",dev->irq); - status = -EAGAIN; - } else { - - /* Enable DEPCA board interrupts and turn off LED */ - nicsr = ((nicsr & ~IM & ~LED)|IEN); - outb(nicsr, DEPCA_NICSR); - outw(CSR0,DEPCA_ADDR); - - netif_start_queue(dev); - - status = InitRestartDepca(dev); - - if (depca_debug > 1){ - printk("CSR0: 0x%4.4x\n",inw(DEPCA_DATA)); - printk("nicsr: 0x%02x\n",inb(DEPCA_NICSR)); - } - } - return status; + struct depca_private *lp = (struct depca_private *) dev->priv; + u_long ioaddr = dev->base_addr; + s16 nicsr; + int status = 0; + + STOP_DEPCA; + nicsr = inb(DEPCA_NICSR); + + /* Make sure the shadow RAM is enabled */ + if (lp->adapter != DEPCA) { + nicsr |= SHE; + outb(nicsr, DEPCA_NICSR); + } + + /* Re-initialize the DEPCA... */ + depca_init_ring(dev); + LoadCSRs(dev); + + depca_dbg_open(dev); + + if (request_irq(dev->irq, &depca_interrupt, 0, lp->adapter_name, dev)) { + printk("depca_open(): Requested IRQ%d is busy\n", dev->irq); + status = -EAGAIN; + } else { + + /* Enable DEPCA board interrupts and turn off LED */ + nicsr = ((nicsr & ~IM & ~LED) | IEN); + outb(nicsr, DEPCA_NICSR); + outw(CSR0, DEPCA_ADDR); + + netif_start_queue(dev); + + status = InitRestartDepca(dev); + + if (depca_debug > 1) { + printk("CSR0: 0x%4.4x\n", inw(DEPCA_DATA)); + printk("nicsr: 0x%02x\n", inb(DEPCA_NICSR)); + } + } + return status; } /* Initialize the lance Rx and Tx descriptor rings. */ -static void -depca_init_ring(struct net_device *dev) +static void depca_init_ring(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; + struct depca_private *lp = (struct depca_private *) dev->priv; u_int i; u_long offset; @@ -822,17 +813,15 @@ /* Initialize the base address and length of each buffer in the ring */ for (i = 0; i <= lp->rxRingMask; i++) { - offset = lp->buffs_offset + i*RX_BUFF_SZ; - writel((lp->device_ram_start + offset) | R_OWN, - &lp->rx_ring[i].base); + offset = lp->buffs_offset + i * RX_BUFF_SZ; + writel((lp->device_ram_start + offset) | R_OWN, &lp->rx_ring[i].base); writew(-RX_BUFF_SZ, &lp->rx_ring[i].buf_length); lp->rx_buff[i] = lp->sh_mem + offset; } for (i = 0; i <= lp->txRingMask; i++) { - offset = lp->buffs_offset + (i + lp->rxRingMask+1)*TX_BUFF_SZ; - writel((lp->device_ram_start + offset) & 0x00ffffff, - &lp->tx_ring[i].base); + offset = lp->buffs_offset + (i + lp->rxRingMask + 1) * TX_BUFF_SZ; + writel((lp->device_ram_start + offset) & 0x00ffffff, &lp->tx_ring[i].base); lp->tx_buff[i] = lp->sh_mem + offset; } @@ -846,30 +835,29 @@ lp->init_block.phys_addr[i] = dev->dev_addr[i]; } - lp->init_block.mode = 0x0000; /* Enable the Tx and Rx */ + lp->init_block.mode = 0x0000; /* Enable the Tx and Rx */ } -static void depca_tx_timeout (struct net_device *dev) +static void depca_tx_timeout(struct net_device *dev) { u_long ioaddr = dev->base_addr; - printk ("%s: transmit timed out, status %04x, resetting.\n", - dev->name, inw (DEPCA_DATA)); + printk("%s: transmit timed out, status %04x, resetting.\n", dev->name, inw(DEPCA_DATA)); STOP_DEPCA; - depca_init_ring (dev); - LoadCSRs (dev); + depca_init_ring(dev); + LoadCSRs(dev); dev->trans_start = jiffies; - netif_wake_queue (dev); - InitRestartDepca (dev); + netif_wake_queue(dev); + InitRestartDepca(dev); } /* ** Writes a socket buffer to TX descriptor ring and starts transmission */ -static int depca_start_xmit (struct sk_buff *skb, struct net_device *dev) +static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct depca_private *lp = (struct depca_private *) dev->priv; u_long ioaddr = dev->base_addr; @@ -879,32 +867,32 @@ if (skb->len < 1) goto out; - netif_stop_queue (dev); + netif_stop_queue(dev); if (TX_BUFFS_AVAIL) { /* Fill in a Tx ring entry */ - status = load_packet (dev, skb); + status = load_packet(dev, skb); if (!status) { /* Trigger an immediate send demand. */ - outw (CSR0, DEPCA_ADDR); - outw (INEA | TDMD, DEPCA_DATA); + outw(CSR0, DEPCA_ADDR); + outw(INEA | TDMD, DEPCA_DATA); dev->trans_start = jiffies; - dev_kfree_skb (skb); + dev_kfree_skb(skb); } if (TX_BUFFS_AVAIL) - netif_start_queue (dev); + netif_start_queue(dev); } else status = -1; -out: + out: return status; } /* ** The DEPCA interrupt handler. */ -static void depca_interrupt (int irq, void *dev_id, struct pt_regs *regs) +static void depca_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct net_device *dev = dev_id; struct depca_private *lp; @@ -912,308 +900,301 @@ u_long ioaddr; if (dev == NULL) { - printk ("depca_interrupt(): irq %d for unknown device.\n", irq); + printk("depca_interrupt(): irq %d for unknown device.\n", irq); return; } lp = (struct depca_private *) dev->priv; ioaddr = dev->base_addr; - spin_lock (&lp->lock); + spin_lock(&lp->lock); /* mask the DEPCA board interrupts and turn on the LED */ - nicsr = inb (DEPCA_NICSR); + nicsr = inb(DEPCA_NICSR); nicsr |= (IM | LED); - outb (nicsr, DEPCA_NICSR); + outb(nicsr, DEPCA_NICSR); - outw (CSR0, DEPCA_ADDR); - csr0 = inw (DEPCA_DATA); + outw(CSR0, DEPCA_ADDR); + csr0 = inw(DEPCA_DATA); /* Acknowledge all of the current interrupt sources ASAP. */ - outw (csr0 & INTE, DEPCA_DATA); + outw(csr0 & INTE, DEPCA_DATA); if (csr0 & RINT) /* Rx interrupt (packet arrived) */ - depca_rx (dev); + depca_rx(dev); if (csr0 & TINT) /* Tx interrupt (packet sent) */ - depca_tx (dev); + depca_tx(dev); /* Any resources available? */ if ((TX_BUFFS_AVAIL >= 0) && netif_queue_stopped(dev)) { - netif_wake_queue (dev); + netif_wake_queue(dev); } /* Unmask the DEPCA board interrupts and turn off the LED */ nicsr = (nicsr & ~IM & ~LED); - outb (nicsr, DEPCA_NICSR); + outb(nicsr, DEPCA_NICSR); - spin_unlock (&lp->lock); + spin_unlock(&lp->lock); } -static int -depca_rx(struct net_device *dev) +static int depca_rx(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - int i, entry; - s32 status; - - for (entry=lp->rx_new; - !(readl(&lp->rx_ring[entry].base) & R_OWN); - entry=lp->rx_new){ - status = readl(&lp->rx_ring[entry].base) >> 16 ; - if (status & R_STP) { /* Remember start of frame */ - lp->rx_old = entry; - } - if (status & R_ENP) { /* Valid frame status */ - if (status & R_ERR) { /* There was an error. */ - lp->stats.rx_errors++; /* Update the error stats. */ - if (status & R_FRAM) lp->stats.rx_frame_errors++; - if (status & R_OFLO) lp->stats.rx_over_errors++; - if (status & R_CRC) lp->stats.rx_crc_errors++; - if (status & R_BUFF) lp->stats.rx_fifo_errors++; - } else { - short len, pkt_len = readw(&lp->rx_ring[entry].msg_length) - 4; - struct sk_buff *skb; - - skb = dev_alloc_skb(pkt_len+2); - if (skb != NULL) { - unsigned char *buf; - skb_reserve(skb,2); /* 16 byte align the IP header */ - buf = skb_put(skb,pkt_len); - skb->dev = dev; - if (entry < lp->rx_old) { /* Wrapped buffer */ - len = (lp->rxRingMask - lp->rx_old + 1) * RX_BUFF_SZ; - memcpy_fromio(buf, lp->rx_buff[lp->rx_old], len); - memcpy_fromio(buf + len, lp->rx_buff[0], pkt_len-len); - } else { /* Linear buffer */ - memcpy_fromio(buf, lp->rx_buff[lp->rx_old], pkt_len); - } - - /* - ** Notify the upper protocol layers that there is another - ** packet to handle - */ - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - - /* - ** Update stats - */ - dev->last_rx = jiffies; - lp->stats.rx_packets++; - lp->stats.rx_bytes += pkt_len; - for (i=1; ipktStats.bins[i]++; - i = DEPCA_PKT_STAT_SZ; - } - } - if (buf[0] & 0x01) { /* Multicast/Broadcast */ - if ((*(s16 *)&buf[0] == -1) && - (*(s16 *)&buf[2] == -1) && - (*(s16 *)&buf[4] == -1)) { - lp->pktStats.broadcast++; - } else { - lp->pktStats.multicast++; - } - } else if ((*(s16 *)&buf[0] == *(s16 *)&dev->dev_addr[0]) && - (*(s16 *)&buf[2] == *(s16 *)&dev->dev_addr[2]) && - (*(s16 *)&buf[4] == *(s16 *)&dev->dev_addr[4])) { - lp->pktStats.unicast++; - } - - lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */ - if (lp->pktStats.bins[0] == 0) { /* Reset counters */ - memset((char *)&lp->pktStats, 0, sizeof(lp->pktStats)); - } - } else { - printk("%s: Memory squeeze, deferring packet.\n", dev->name); - lp->stats.rx_dropped++; /* Really, deferred. */ - break; - } - } - /* Change buffer ownership for this last frame, back to the adapter */ - for (; lp->rx_old!=entry; lp->rx_old=(++lp->rx_old)&lp->rxRingMask) { - writel(readl(&lp->rx_ring[lp->rx_old].base) | R_OWN, - &lp->rx_ring[lp->rx_old].base); - } - writel(readl(&lp->rx_ring[entry].base) | R_OWN, &lp->rx_ring[entry].base); - } - - /* - ** Update entry information - */ - lp->rx_new = (++lp->rx_new) & lp->rxRingMask; - } + struct depca_private *lp = (struct depca_private *) dev->priv; + int i, entry; + s32 status; - return 0; + for (entry = lp->rx_new; !(readl(&lp->rx_ring[entry].base) & R_OWN); entry = lp->rx_new) { + status = readl(&lp->rx_ring[entry].base) >> 16; + if (status & R_STP) { /* Remember start of frame */ + lp->rx_old = entry; + } + if (status & R_ENP) { /* Valid frame status */ + if (status & R_ERR) { /* There was an error. */ + lp->stats.rx_errors++; /* Update the error stats. */ + if (status & R_FRAM) + lp->stats.rx_frame_errors++; + if (status & R_OFLO) + lp->stats.rx_over_errors++; + if (status & R_CRC) + lp->stats.rx_crc_errors++; + if (status & R_BUFF) + lp->stats.rx_fifo_errors++; + } else { + short len, pkt_len = readw(&lp->rx_ring[entry].msg_length) - 4; + struct sk_buff *skb; + + skb = dev_alloc_skb(pkt_len + 2); + if (skb != NULL) { + unsigned char *buf; + skb_reserve(skb, 2); /* 16 byte align the IP header */ + buf = skb_put(skb, pkt_len); + skb->dev = dev; + if (entry < lp->rx_old) { /* Wrapped buffer */ + len = (lp->rxRingMask - lp->rx_old + 1) * RX_BUFF_SZ; + memcpy_fromio(buf, lp->rx_buff[lp->rx_old], len); + memcpy_fromio(buf + len, lp->rx_buff[0], pkt_len - len); + } else { /* Linear buffer */ + memcpy_fromio(buf, lp->rx_buff[lp->rx_old], pkt_len); + } + + /* + ** Notify the upper protocol layers that there is another + ** packet to handle + */ + skb->protocol = eth_type_trans(skb, dev); + netif_rx(skb); + + /* + ** Update stats + */ + dev->last_rx = jiffies; + lp->stats.rx_packets++; + lp->stats.rx_bytes += pkt_len; + for (i = 1; i < DEPCA_PKT_STAT_SZ - 1; i++) { + if (pkt_len < (i * DEPCA_PKT_BIN_SZ)) { + lp->pktStats.bins[i]++; + i = DEPCA_PKT_STAT_SZ; + } + } + if (buf[0] & 0x01) { /* Multicast/Broadcast */ + if ((*(s16 *) & buf[0] == -1) && (*(s16 *) & buf[2] == -1) && (*(s16 *) & buf[4] == -1)) { + lp->pktStats.broadcast++; + } else { + lp->pktStats.multicast++; + } + } else if ((*(s16 *) & buf[0] == *(s16 *) & dev->dev_addr[0]) && (*(s16 *) & buf[2] == *(s16 *) & dev->dev_addr[2]) && (*(s16 *) & buf[4] == *(s16 *) & dev->dev_addr[4])) { + lp->pktStats.unicast++; + } + + lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */ + if (lp->pktStats.bins[0] == 0) { /* Reset counters */ + memset((char *) &lp->pktStats, 0, sizeof(lp->pktStats)); + } + } else { + printk("%s: Memory squeeze, deferring packet.\n", dev->name); + lp->stats.rx_dropped++; /* Really, deferred. */ + break; + } + } + /* Change buffer ownership for this last frame, back to the adapter */ + for (; lp->rx_old != entry; lp->rx_old = (++lp->rx_old) & lp->rxRingMask) { + writel(readl(&lp->rx_ring[lp->rx_old].base) | R_OWN, &lp->rx_ring[lp->rx_old].base); + } + writel(readl(&lp->rx_ring[entry].base) | R_OWN, &lp->rx_ring[entry].base); + } + + /* + ** Update entry information + */ + lp->rx_new = (++lp->rx_new) & lp->rxRingMask; + } + + return 0; } /* ** Buffer sent - check for buffer errors. */ -static int -depca_tx(struct net_device *dev) +static int depca_tx(struct net_device *dev) +{ + struct depca_private *lp = (struct depca_private *) dev->priv; + int entry; + s32 status; + u_long ioaddr = dev->base_addr; + + for (entry = lp->tx_old; entry != lp->tx_new; entry = lp->tx_old) { + status = readl(&lp->tx_ring[entry].base) >> 16; + + if (status < 0) { /* Packet not yet sent! */ + break; + } else if (status & T_ERR) { /* An error occurred. */ + status = readl(&lp->tx_ring[entry].misc); + lp->stats.tx_errors++; + if (status & TMD3_RTRY) + lp->stats.tx_aborted_errors++; + if (status & TMD3_LCAR) + lp->stats.tx_carrier_errors++; + if (status & TMD3_LCOL) + lp->stats.tx_window_errors++; + if (status & TMD3_UFLO) + lp->stats.tx_fifo_errors++; + if (status & (TMD3_BUFF | TMD3_UFLO)) { + /* Trigger an immediate send demand. */ + outw(CSR0, DEPCA_ADDR); + outw(INEA | TDMD, DEPCA_DATA); + } + } else if (status & (T_MORE | T_ONE)) { + lp->stats.collisions++; + } else { + lp->stats.tx_packets++; + } + + /* Update all the pointers */ + lp->tx_old = (++lp->tx_old) & lp->txRingMask; + } + + return 0; +} + +static int depca_close(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - int entry; - s32 status; - u_long ioaddr = dev->base_addr; - - for (entry = lp->tx_old; entry != lp->tx_new; entry = lp->tx_old) { - status = readl(&lp->tx_ring[entry].base) >> 16 ; - - if (status < 0) { /* Packet not yet sent! */ - break; - } else if (status & T_ERR) { /* An error occurred. */ - status = readl(&lp->tx_ring[entry].misc); - lp->stats.tx_errors++; - if (status & TMD3_RTRY) lp->stats.tx_aborted_errors++; - if (status & TMD3_LCAR) lp->stats.tx_carrier_errors++; - if (status & TMD3_LCOL) lp->stats.tx_window_errors++; - if (status & TMD3_UFLO) lp->stats.tx_fifo_errors++; - if (status & (TMD3_BUFF | TMD3_UFLO)) { - /* Trigger an immediate send demand. */ + struct depca_private *lp = (struct depca_private *) dev->priv; + s16 nicsr; + u_long ioaddr = dev->base_addr; + + netif_stop_queue(dev); + outw(CSR0, DEPCA_ADDR); - outw(INEA | TDMD, DEPCA_DATA); - } - } else if (status & (T_MORE | T_ONE)) { - lp->stats.collisions++; - } else { - lp->stats.tx_packets++; - } - - /* Update all the pointers */ - lp->tx_old = (++lp->tx_old) & lp->txRingMask; - } - - return 0; -} - -static int -depca_close(struct net_device *dev) -{ - struct depca_private *lp = (struct depca_private *)dev->priv; - s16 nicsr; - u_long ioaddr = dev->base_addr; - - netif_stop_queue(dev); - - outw(CSR0, DEPCA_ADDR); - - if (depca_debug > 1) { - printk("%s: Shutting down ethercard, status was %2.2x.\n", - dev->name, inw(DEPCA_DATA)); - } - - /* - ** We stop the DEPCA here -- it occasionally polls - ** memory if we don't. - */ - outw(STOP, DEPCA_DATA); - - /* - ** Give back the ROM in case the user wants to go to DOS - */ - if (lp->adapter != DEPCA) { - nicsr = inb(DEPCA_NICSR); - nicsr &= ~SHE; - outb(nicsr, DEPCA_NICSR); - } - - /* - ** Free the associated irq - */ - free_irq(dev->irq, dev); - return 0; + + if (depca_debug > 1) { + printk("%s: Shutting down ethercard, status was %2.2x.\n", dev->name, inw(DEPCA_DATA)); + } + + /* + ** We stop the DEPCA here -- it occasionally polls + ** memory if we don't. + */ + outw(STOP, DEPCA_DATA); + + /* + ** Give back the ROM in case the user wants to go to DOS + */ + if (lp->adapter != DEPCA) { + nicsr = inb(DEPCA_NICSR); + nicsr &= ~SHE; + outb(nicsr, DEPCA_NICSR); + } + + /* + ** Free the associated irq + */ + free_irq(dev->irq, dev); + return 0; } static void LoadCSRs(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - u_long ioaddr = dev->base_addr; + struct depca_private *lp = (struct depca_private *) dev->priv; + u_long ioaddr = dev->base_addr; - outw(CSR1, DEPCA_ADDR); /* initialisation block address LSW */ - outw((u16)lp->device_ram_start, DEPCA_DATA); - outw(CSR2, DEPCA_ADDR); /* initialisation block address MSW */ - outw((u16)(lp->device_ram_start >> 16), DEPCA_DATA); - outw(CSR3, DEPCA_ADDR); /* ALE control */ - outw(ACON, DEPCA_DATA); + outw(CSR1, DEPCA_ADDR); /* initialisation block address LSW */ + outw((u16) lp->device_ram_start, DEPCA_DATA); + outw(CSR2, DEPCA_ADDR); /* initialisation block address MSW */ + outw((u16) (lp->device_ram_start >> 16), DEPCA_DATA); + outw(CSR3, DEPCA_ADDR); /* ALE control */ + outw(ACON, DEPCA_DATA); - outw(CSR0, DEPCA_ADDR); /* Point back to CSR0 */ + outw(CSR0, DEPCA_ADDR); /* Point back to CSR0 */ - return; + return; } static int InitRestartDepca(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - u_long ioaddr = dev->base_addr; - int i, status=0; - - /* Copy the shadow init_block to shared memory */ - memcpy_toio(lp->sh_mem, &lp->init_block, sizeof(struct depca_init)); + struct depca_private *lp = (struct depca_private *) dev->priv; + u_long ioaddr = dev->base_addr; + int i, status = 0; - outw(CSR0, DEPCA_ADDR); /* point back to CSR0 */ - outw(INIT, DEPCA_DATA); /* initialize DEPCA */ + /* Copy the shadow init_block to shared memory */ + memcpy_toio(lp->sh_mem, &lp->init_block, sizeof(struct depca_init)); - /* wait for lance to complete initialisation */ - for (i=0;(i<100) && !(inw(DEPCA_DATA) & IDON); i++); + outw(CSR0, DEPCA_ADDR); /* point back to CSR0 */ + outw(INIT, DEPCA_DATA); /* initialize DEPCA */ - if (i!=100) { - /* clear IDON by writing a "1", enable interrupts and start lance */ - outw(IDON | INEA | STRT, DEPCA_DATA); - if (depca_debug > 2) { - printk("%s: DEPCA open after %d ticks, init block 0x%08lx csr0 %4.4x.\n", - dev->name, i, virt_to_phys(lp->sh_mem), inw(DEPCA_DATA)); - } - } else { - printk("%s: DEPCA unopen after %d ticks, init block 0x%08lx csr0 %4.4x.\n", - dev->name, i, virt_to_phys(lp->sh_mem), inw(DEPCA_DATA)); - status = -1; - } + /* wait for lance to complete initialisation */ + for (i = 0; (i < 100) && !(inw(DEPCA_DATA) & IDON); i++); + + if (i != 100) { + /* clear IDON by writing a "1", enable interrupts and start lance */ + outw(IDON | INEA | STRT, DEPCA_DATA); + if (depca_debug > 2) { + printk("%s: DEPCA open after %d ticks, init block 0x%08lx csr0 %4.4x.\n", dev->name, i, virt_to_phys(lp->sh_mem), inw(DEPCA_DATA)); + } + } else { + printk("%s: DEPCA unopen after %d ticks, init block 0x%08lx csr0 %4.4x.\n", dev->name, i, virt_to_phys(lp->sh_mem), inw(DEPCA_DATA)); + status = -1; + } - return status; + return status; } -static struct net_device_stats * -depca_get_stats(struct net_device *dev) +static struct net_device_stats *depca_get_stats(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; + struct depca_private *lp = (struct depca_private *) dev->priv; - /* Null body since there is no framing error counter */ + /* Null body since there is no framing error counter */ - return &lp->stats; + return &lp->stats; } /* ** Set or clear the multicast filter for this adaptor. */ -static void -set_multicast_list(struct net_device *dev) +static void set_multicast_list(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - u_long ioaddr = dev->base_addr; - - if (dev) { - netif_stop_queue(dev); - while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */ - - STOP_DEPCA; /* Temporarily stop the depca. */ - depca_init_ring(dev); /* Initialize the descriptor rings */ - - if (dev->flags & IFF_PROMISC) { /* Set promiscuous mode */ - lp->init_block.mode |= PROM; - } else { - SetMulticastFilter(dev); - lp->init_block.mode &= ~PROM; /* Unset promiscuous mode */ - } - - LoadCSRs(dev); /* Reload CSR3 */ - InitRestartDepca(dev); /* Resume normal operation. */ - netif_start_queue(dev); /* Unlock the TX ring */ - } + struct depca_private *lp = (struct depca_private *) dev->priv; + u_long ioaddr = dev->base_addr; + + if (dev) { + netif_stop_queue(dev); + while (lp->tx_old != lp->tx_new); /* Wait for the ring to empty */ + + STOP_DEPCA; /* Temporarily stop the depca. */ + depca_init_ring(dev); /* Initialize the descriptor rings */ + + if (dev->flags & IFF_PROMISC) { /* Set promiscuous mode */ + lp->init_block.mode |= PROM; + } else { + SetMulticastFilter(dev); + lp->init_block.mode &= ~PROM; /* Unset promiscuous mode */ + } + + LoadCSRs(dev); /* Reload CSR3 */ + InitRestartDepca(dev); /* Resume normal operation. */ + netif_start_queue(dev); /* Unlock the TX ring */ + } } /* @@ -1224,274 +1205,277 @@ */ static void SetMulticastFilter(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - struct dev_mc_list *dmi=dev->mc_list; - char *addrs; - int i, j, bit, byte; - u16 hashcode; - u32 crc; - - if (dev->flags & IFF_ALLMULTI) { /* Set all multicast bits */ - for (i=0; i<(HASH_TABLE_LEN>>3); i++) { - lp->init_block.mcast_table[i] = (char)0xff; - } - } else { - for (i=0; i<(HASH_TABLE_LEN>>3); i++){ /* Clear the multicast table */ - lp->init_block.mcast_table[i]=0; - } - /* Add multicast addresses */ - for (i=0;imc_count;i++) { /* for each address in the list */ - addrs=dmi->dmi_addr; - dmi=dmi->next; - if ((*addrs & 0x01) == 1) { /* multicast address? */ - crc = ether_crc(ETH_ALEN, addrs); - hashcode = (crc & 1); /* hashcode is 6 LSb of CRC ... */ - for (j=0;j<5;j++) { /* ... in reverse order. */ - hashcode = (hashcode << 1) | ((crc>>=1) & 1); - } - - - byte = hashcode >> 3; /* bit[3-5] -> byte in filter */ - bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */ - lp->init_block.mcast_table[byte] |= bit; - } - } - } + struct depca_private *lp = (struct depca_private *) dev->priv; + struct dev_mc_list *dmi = dev->mc_list; + char *addrs; + int i, j, bit, byte; + u16 hashcode; + u32 crc; + + if (dev->flags & IFF_ALLMULTI) { /* Set all multicast bits */ + for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) { + lp->init_block.mcast_table[i] = (char) 0xff; + } + } else { + for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) { /* Clear the multicast table */ + lp->init_block.mcast_table[i] = 0; + } + /* Add multicast addresses */ + for (i = 0; i < dev->mc_count; i++) { /* for each address in the list */ + addrs = dmi->dmi_addr; + dmi = dmi->next; + if ((*addrs & 0x01) == 1) { /* multicast address? */ + crc = ether_crc(ETH_ALEN, addrs); + hashcode = (crc & 1); /* hashcode is 6 LSb of CRC ... */ + for (j = 0; j < 5; j++) { /* ... in reverse order. */ + hashcode = (hashcode << 1) | ((crc >>= 1) & 1); + } + - return; + byte = hashcode >> 3; /* bit[3-5] -> byte in filter */ + bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */ + lp->init_block.mcast_table[byte] |= bit; + } + } + } + + return; } #ifdef CONFIG_MCA /* ** Microchannel bus I/O device probe */ -static void __init -mca_probe(struct net_device *dev, u_long ioaddr) +static void __init mca_probe(struct net_device *dev, u_long ioaddr) { - unsigned char pos[2]; - unsigned char where; - unsigned long iobase; - int irq; - int slot = 0; - - /* - ** See if we've been here before. - */ - if ((!ioaddr && autoprobed) || (ioaddr && !loading_module)) return; + unsigned char pos[2]; + unsigned char where; + unsigned long iobase; + int irq; + int slot = 0; - if (MCA_bus) { /* - ** Search for the adapter. If an address has been given, search - ** specifically for the card at that address. Otherwise find the - ** first card in the system. - */ - while ((dev!=NULL) && - ((slot=mca_find_adapter(DE212_ID, slot)) != MCA_NOTFOUND)) { - pos[0] = mca_read_stored_pos(slot, 2); - pos[1] = mca_read_stored_pos(slot, 3); - - /* - ** IO of card is handled by bits 1 and 2 of pos0. - ** - ** bit2 bit1 IO - ** 0 0 0x2c00 - ** 0 1 0x2c10 - ** 1 0 0x2c20 - ** 1 1 0x2c30 - */ - where = (pos[0] & 6) >> 1; - iobase = 0x2c00 + (0x10 * where); - - if ((ioaddr) && (ioaddr != iobase)) { - /* - ** Card was found, but not at the right IO location. Continue - ** scanning from the next MCA slot up for another card. - */ - slot++; - continue; - } - - /* - ** Found the adapter we were looking for. Now start setting it up. - ** - ** First work on decoding the IRQ. It's stored in the lower 4 bits - ** of pos1. Bits are as follows (from the ADF file): - ** - ** Bits - ** 3 2 1 0 IRQ - ** -------------------- - ** 0 0 1 0 5 - ** 0 0 0 1 9 - ** 0 1 0 0 10 - ** 1 0 0 0 11 - **/ - where = pos[1] & 0x0f; - switch(where) { - case 1: - irq = 9; - break; - case 2: - irq = 5; - break; - case 4: - irq = 10; - break; - case 8: - irq = 11; - break; - default: - printk("%s: mca_probe IRQ error. You should never get here (%d).\n", dev->name, where); + ** See if we've been here before. + */ + if ((!ioaddr && autoprobed) || (ioaddr && !loading_module)) return; - } - - /* - ** Shared memory address of adapter is stored in bits 3-5 of pos0. - ** They are mapped as follows: - ** - ** Bit - ** 5 4 3 Memory Addresses - ** 0 0 0 C0000-CFFFF (64K) - ** 1 0 0 C8000-CFFFF (32K) - ** 0 0 1 D0000-DFFFF (64K) - ** 1 0 1 D8000-DFFFF (32K) - ** 0 1 0 E0000-EFFFF (64K) - ** 1 1 0 E8000-EFFFF (32K) - */ - where = (pos[0] & 0x18) >> 3; - mem = 0xc0000 + (where * 0x10000); - if (pos[0] & 0x20) { - mem += 0x8000; - } - - /* - ** Get everything allocated and initialized... (almost just - ** like the ISA and EISA probes) - */ - if (DevicePresent(iobase) != 0) { + + if (MCA_bus) { /* - ** If the MCA configuration says the card should be here, - ** it really should be here. - */ - printk(KERN_ERR "%s: MCA reports card at 0x%lx but it is not -responding.\n", dev->name, iobase); - } - - if (check_region(iobase, DEPCA_TOTAL_SIZE) == 0) { - if ((dev = alloc_device(dev, iobase)) != NULL) { - dev->irq = irq; - if (depca_hw_init(dev, iobase, slot) == 0) { + ** Search for the adapter. If an address has been given, search + ** specifically for the card at that address. Otherwise find the + ** first card in the system. + */ + while ((dev != NULL) && ((slot = mca_find_adapter(DE212_ID, slot)) != MCA_NOTFOUND)) { + pos[0] = mca_read_stored_pos(slot, 2); + pos[1] = mca_read_stored_pos(slot, 3); + + /* + ** IO of card is handled by bits 1 and 2 of pos0. + ** + ** bit2 bit1 IO + ** 0 0 0x2c00 + ** 0 1 0x2c10 + ** 1 0 0x2c20 + ** 1 1 0x2c30 + */ + where = (pos[0] & 6) >> 1; + iobase = 0x2c00 + (0x10 * where); + + if ((ioaddr) && (ioaddr != iobase)) { + /* + ** Card was found, but not at the right IO location. Continue + ** scanning from the next MCA slot up for another card. + */ + slot++; + continue; + } + /* - ** Adapter initialized correctly: Name it in - ** /proc/mca. - */ - mca_set_adapter_name(slot, "DE210/212 Ethernet Adapter"); - mca_mark_as_used(slot); - num_depcas++; - } - num_eth++; - } - } else if (autoprobed) { - printk(KERN_WARNING "%s: region already allocated at 0x%04lx.\n", dev->name, iobase); - } - - /* - ** If this is a probe by a module, return after setting up the - ** given card. - */ - if (ioaddr) return; - - /* - ** Set up to check the next slot and loop. - */ - slot++; + ** Found the adapter we were looking for. Now start setting it up. + ** + ** First work on decoding the IRQ. It's stored in the lower 4 bits + ** of pos1. Bits are as follows (from the ADF file): + ** + ** Bits + ** 3 2 1 0 IRQ + ** -------------------- + ** 0 0 1 0 5 + ** 0 0 0 1 9 + ** 0 1 0 0 10 + ** 1 0 0 0 11 + * */ + where = pos[1] & 0x0f; + switch (where) { + case 1: + irq = 9; + break; + case 2: + irq = 5; + break; + case 4: + irq = 10; + break; + case 8: + irq = 11; + break; + default: + printk("%s: mca_probe IRQ error. You should never get here (%d).\n", dev->name, where); + return; + } + + /* + ** Shared memory address of adapter is stored in bits 3-5 of pos0. + ** They are mapped as follows: + ** + ** Bit + ** 5 4 3 Memory Addresses + ** 0 0 0 C0000-CFFFF (64K) + ** 1 0 0 C8000-CFFFF (32K) + ** 0 0 1 D0000-DFFFF (64K) + ** 1 0 1 D8000-DFFFF (32K) + ** 0 1 0 E0000-EFFFF (64K) + ** 1 1 0 E8000-EFFFF (32K) + */ + where = (pos[0] & 0x18) >> 3; + mem = 0xc0000 + (where * 0x10000); + if (pos[0] & 0x20) { + mem += 0x8000; + } + + /* + ** Get everything allocated and initialized... (almost just + ** like the ISA and EISA probes) + */ + if (DevicePresent(iobase) != 0) { + /* + ** If the MCA configuration says the card should be here, + ** it really should be here. + */ + printk(KERN_ERR "%s: MCA reports card at 0x%lx but it is not responding.\n", dev->name, iobase); + } + + if (check_region(iobase, DEPCA_TOTAL_SIZE) == 0) { + if ((dev = alloc_device(dev, iobase)) != NULL) { + dev->irq = irq; + if (depca_hw_init(dev, iobase, slot) == 0) { + /* + ** Adapter initialized correctly: Name it in + ** /proc/mca. + */ + mca_set_adapter_name(slot, "DE210/212 Ethernet Adapter"); + mca_mark_as_used(slot); + num_depcas++; + } + num_eth++; + } + } else if (autoprobed) { + printk(KERN_WARNING "%s: region already allocated at 0x%04lx.\n", dev->name, iobase); + } + + /* + ** If this is a probe by a module, return after setting up the + ** given card. + */ + if (ioaddr) + return; + + /* + ** Set up to check the next slot and loop. + */ + slot++; + } } - } - return; + return; } #endif /* ** ISA bus I/O device probe */ -static void __init -isa_probe(struct net_device *dev, u_long ioaddr) +static void __init isa_probe(struct net_device *dev, u_long ioaddr) { - int i = num_depcas, maxSlots; - s32 ports[] = DEPCA_IO_PORTS; + int i = num_depcas, maxSlots; + s32 ports[] = DEPCA_IO_PORTS; - if (!ioaddr && autoprobed) return ; /* Been here before ! */ - if (ioaddr > 0x400) return; /* EISA Address */ - if (i >= MAX_NUM_DEPCAS) return; /* Too many ISA adapters */ - - if (ioaddr == 0) { /* Autoprobing */ - maxSlots = MAX_NUM_DEPCAS; - } else { /* Probe a specific location */ - ports[i] = ioaddr; - maxSlots = i + 1; - } - - for (; (iname, ports[i]); - } - } + if (!ioaddr && autoprobed) + return; /* Been here before ! */ + if (ioaddr > 0x400) + return; /* EISA Address */ + if (i >= MAX_NUM_DEPCAS) + return; /* Too many ISA adapters */ + + if (ioaddr == 0) { /* Autoprobing */ + maxSlots = MAX_NUM_DEPCAS; + } else { /* Probe a specific location */ + ports[i] = ioaddr; + maxSlots = i + 1; + } + + for (; (i < maxSlots) && (dev != NULL) && ports[i]; i++) { + if (check_region(ports[i], DEPCA_TOTAL_SIZE) == 0) { + if (DevicePresent(ports[i]) == 0) { + if ((dev = alloc_device(dev, ports[i])) != NULL) { + if (depca_hw_init(dev, ports[i], -1) == 0) { + num_depcas++; + } + num_eth++; + } + } + } else if (autoprobed) { + printk("%s: region already allocated at 0x%04x.\n", dev->name, ports[i]); + } + } - return; + return; } /* ** EISA bus I/O device probe. Probe from slot 1 since slot 0 is usually ** the motherboard. Upto 15 EISA devices are supported. */ -static void __init -eisa_probe(struct net_device *dev, u_long ioaddr) +static void __init eisa_probe(struct net_device *dev, u_long ioaddr) { - int i, maxSlots; - u_long iobase; - char name[DEPCA_STRLEN]; - - if (!ioaddr && autoprobed) return ; /* Been here before ! */ - if ((ioaddr < 0x400) && (ioaddr > 0)) return; /* ISA Address */ - - if (ioaddr == 0) { /* Autoprobing */ - iobase = EISA_SLOT_INC; /* Get the first slot address */ - i = 1; - maxSlots = MAX_EISA_SLOTS; - } else { /* Probe a specific location */ - iobase = ioaddr; - i = (ioaddr >> 12); - maxSlots = i + 1; - } - if ((iobase & 0x0fff) == 0) iobase += DEPCA_EISA_IO_PORTS; - - for (; (iname, iobase); - } - } + int i, maxSlots; + u_long iobase; + char name[DEPCA_STRLEN]; + + if (!ioaddr && autoprobed) + return; /* Been here before ! */ + if ((ioaddr < 0x400) && (ioaddr > 0)) + return; /* ISA Address */ + + if (ioaddr == 0) { /* Autoprobing */ + iobase = EISA_SLOT_INC; /* Get the first slot address */ + i = 1; + maxSlots = MAX_EISA_SLOTS; + } else { /* Probe a specific location */ + iobase = ioaddr; + i = (ioaddr >> 12); + maxSlots = i + 1; + } + if ((iobase & 0x0fff) == 0) + iobase += DEPCA_EISA_IO_PORTS; + + for (; (i < maxSlots) && (dev != NULL); i++, iobase += EISA_SLOT_INC) { + if (check_region(iobase, DEPCA_TOTAL_SIZE) == 0) { + if (EISA_signature(name, EISA_ID)) { + if (DevicePresent(iobase) == 0) { + if ((dev = alloc_device(dev, iobase)) != NULL) { + if (depca_hw_init(dev, iobase, -1) == 0) { + num_depcas++; + } + num_eth++; + } + } + } + } else if (autoprobed) { + printk("%s: region already allocated at 0x%04lx.\n", dev->name, iobase); + } + } - return; + return; } /* @@ -1500,89 +1484,87 @@ ** are not available then insert a new device structure at the end of ** the current list. */ -static struct net_device * __init -alloc_device(struct net_device *dev, u_long iobase) +static struct net_device *__init alloc_device(struct net_device *dev, u_long iobase) { - struct net_device *adev = NULL; - int fixed = 0, new_dev = 0; + struct net_device *adev = NULL; + int fixed = 0, new_dev = 0; - num_eth = depca_dev_index(dev->name); - if (loading_module) return dev; - - while (1) { - if (((dev->base_addr == DEPCA_NDA) || (dev->base_addr==0)) && !adev) { - adev=dev; - } else if ((dev->priv == NULL) && (dev->base_addr==iobase)) { - fixed = 1; - } else { - if (dev->next == NULL) { - new_dev = 1; - } else if (strncmp(dev->next->name, "eth", 3) != 0) { - new_dev = 1; - } - } - if ((dev->next == NULL) || new_dev || fixed) break; - dev = dev->next; - num_eth++; - } - if (adev && !fixed) { - dev = adev; num_eth = depca_dev_index(dev->name); - new_dev = 0; - } + if (loading_module) + return dev; - if (((dev->next == NULL) && - ((dev->base_addr != DEPCA_NDA) && (dev->base_addr != 0)) && !fixed) || - new_dev) { - num_eth++; /* New device */ - dev = insert_device(dev, iobase, depca_probe); - } - - return dev; + while (1) { + if (((dev->base_addr == DEPCA_NDA) || (dev->base_addr == 0)) && !adev) { + adev = dev; + } else if ((dev->priv == NULL) && (dev->base_addr == iobase)) { + fixed = 1; + } else { + if (dev->next == NULL) { + new_dev = 1; + } else if (strncmp(dev->next->name, "eth", 3) != 0) { + new_dev = 1; + } + } + if ((dev->next == NULL) || new_dev || fixed) + break; + dev = dev->next; + num_eth++; + } + if (adev && !fixed) { + dev = adev; + num_eth = depca_dev_index(dev->name); + new_dev = 0; + } + + if (((dev->next == NULL) && ((dev->base_addr != DEPCA_NDA) && (dev->base_addr != 0)) && !fixed) || new_dev) { + num_eth++; /* New device */ + dev = insert_device(dev, iobase, depca_probe); + } + + return dev; } /* ** If at end of eth device list and can't use current entry, malloc ** one up. If memory could not be allocated, print an error message. */ -static struct net_device * __init -insert_device(struct net_device *dev, u_long iobase, int (*init)(struct net_device *)) +static struct net_device *__init insert_device(struct net_device *dev, u_long iobase, int (*init) (struct net_device *)) { - struct net_device *new; + struct net_device *new; - new = (struct net_device *)kmalloc(sizeof(struct net_device), GFP_KERNEL); - if (new == NULL) { - printk("eth%d: Device not initialised, insufficient memory\n",num_eth); - return NULL; - } else { - new->next = dev->next; - dev->next = new; - dev = dev->next; /* point to the new device */ - if (num_eth > 9999) { - sprintf(dev->name,"eth????");/* New device name */ + new = (struct net_device *) kmalloc(sizeof(struct net_device), GFP_KERNEL); + if (new == NULL) { + printk("eth%d: Device not initialised, insufficient memory\n", num_eth); + return NULL; } else { - sprintf(dev->name,"eth%d", num_eth);/* New device name */ + new->next = dev->next; + dev->next = new; + dev = dev->next; /* point to the new device */ + if (num_eth > 9999) { + sprintf(dev->name, "eth????"); /* New device name */ + } else { + sprintf(dev->name, "eth%d", num_eth); /* New device name */ + } + dev->base_addr = iobase; /* assign the io address */ + dev->init = init; /* initialisation routine */ } - dev->base_addr = iobase; /* assign the io address */ - dev->init = init; /* initialisation routine */ - } - return dev; + return dev; } -static int __init -depca_dev_index(char *s) +static int __init depca_dev_index(char *s) { - int i=0, j=0; + int i = 0, j = 0; - for (;*s; s++) { - if (isdigit(*s)) { - j=1; - i = (i * 10) + (*s - '0'); - } else if (j) break; - } + for (; *s; s++) { + if (isdigit(*s)) { + j = 1; + i = (i * 10) + (*s - '0'); + } else if (j) + break; + } - return i; + return i; } /* @@ -1590,50 +1572,51 @@ ** and Boot (readb) ROM. This will also give us a clue to the network RAM ** base address. */ -static void __init -DepcaSignature(char *name, u_long paddr) +static void __init DepcaSignature(char *name, u_long paddr) { - u_int i,j,k; - const char *signatures[] = DEPCA_SIGNATURE; - void *ptr; - char tmpstr[16]; - - /* Copy the first 16 bytes of ROM */ - ptr = ioremap(paddr + 0xc000, 16); - if (ptr == NULL) { - printk(KERN_ERR "depca: I/O remap failed at %lx\n", paddr+0xc000); - adapter = unknown; - return; - } - for (i=0;i<16;i++) { - tmpstr[i] = readb(ptr + i); - } - iounmap(ptr); - - /* Check if PROM contains a valid string */ - for (i=0;*signatures[i]!='\0';i++) { - for (j=0,k=0;j<16 && kbase_addr; - int i, k, tmp, status = 0; - u_short j, x, chksum; - - x = (((adapter == de100) || (adapter == de101)) ? 1 : 0); - - for (i=0,k=0,j=0;j<3;j++) { - k <<= 1 ; - if (k > 0xffff) k-=0xffff; - - k += (u_char) (tmp = inb(DEPCA_PROM + x)); - dev->dev_addr[i++] = (u_char) tmp; - k += (u_short) ((tmp = inb(DEPCA_PROM + x)) << 8); - dev->dev_addr[i++] = (u_char) tmp; + u_long ioaddr = dev->base_addr; + int i, k, tmp, status = 0; + u_short j, x, chksum; - if (k > 0xffff) k-=0xffff; - } - if (k == 0xffff) k=0; + x = (((adapter == de100) || (adapter == de101)) ? 1 : 0); - chksum = (u_char) inb(DEPCA_PROM + x); - chksum |= (u_short) (inb(DEPCA_PROM + x) << 8); - if (k != chksum) status = -1; + for (i = 0, k = 0, j = 0; j < 3; j++) { + k <<= 1; + if (k > 0xffff) + k -= 0xffff; + + k += (u_char) (tmp = inb(DEPCA_PROM + x)); + dev->dev_addr[i++] = (u_char) tmp; + k += (u_short) ((tmp = inb(DEPCA_PROM + x)) << 8); + dev->dev_addr[i++] = (u_char) tmp; + + if (k > 0xffff) + k -= 0xffff; + } + if (k == 0xffff) + k = 0; + + chksum = (u_char) inb(DEPCA_PROM + x); + chksum |= (u_short) (inb(DEPCA_PROM + x) << 8); + if (k != chksum) + status = -1; - return status; + return status; } /* @@ -1738,165 +1724,161 @@ */ static int load_packet(struct net_device *dev, struct sk_buff *skb) { - struct depca_private *lp = (struct depca_private *)dev->priv; - int i, entry, end, len, status = 0; + struct depca_private *lp = (struct depca_private *) dev->priv; + int i, entry, end, len, status = 0; - entry = lp->tx_new; /* Ring around buffer number. */ - end = (entry + (skb->len - 1) / TX_BUFF_SZ) & lp->txRingMask; - if (!(readl(&lp->tx_ring[end].base) & T_OWN)) {/* Enough room? */ - /* - ** Caution: the write order is important here... don't set up the - ** ownership rights until all the other information is in place. - */ - if (end < entry) { /* wrapped buffer */ - len = (lp->txRingMask - entry + 1) * TX_BUFF_SZ; - memcpy_toio(lp->tx_buff[entry], skb->data, len); - memcpy_toio(lp->tx_buff[0], skb->data + len, skb->len - len); - } else { /* linear buffer */ - memcpy_toio(lp->tx_buff[entry], skb->data, skb->len); - } - - /* set up the buffer descriptors */ - len = (skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len; - for (i = entry; i != end; i = (++i) & lp->txRingMask) { - /* clean out flags */ - writel(readl(&lp->tx_ring[i].base) & ~T_FLAGS, &lp->tx_ring[i].base); - writew(0x0000, &lp->tx_ring[i].misc); /* clears other error flags */ - writew(-TX_BUFF_SZ, &lp->tx_ring[i].length);/* packet length in buffer */ - len -= TX_BUFF_SZ; - } - /* clean out flags */ - writel(readl(&lp->tx_ring[end].base) & ~T_FLAGS, &lp->tx_ring[end].base); - writew(0x0000, &lp->tx_ring[end].misc); /* clears other error flags */ - writew(-len, &lp->tx_ring[end].length); /* packet length in last buff */ - - /* start of packet */ - writel(readl(&lp->tx_ring[entry].base) | T_STP, &lp->tx_ring[entry].base); - /* end of packet */ - writel(readl(&lp->tx_ring[end].base) | T_ENP, &lp->tx_ring[end].base); - - for (i=end; i!=entry; --i) { - /* ownership of packet */ - writel(readl(&lp->tx_ring[i].base) | T_OWN, &lp->tx_ring[i].base); - if (i == 0) i=lp->txRingMask+1; - } - writel(readl(&lp->tx_ring[entry].base) | T_OWN, &lp->tx_ring[entry].base); - - lp->tx_new = (++end) & lp->txRingMask; /* update current pointers */ - } else { - status = -1; - } + entry = lp->tx_new; /* Ring around buffer number. */ + end = (entry + (skb->len - 1) / TX_BUFF_SZ) & lp->txRingMask; + if (!(readl(&lp->tx_ring[end].base) & T_OWN)) { /* Enough room? */ + /* + ** Caution: the write order is important here... don't set up the + ** ownership rights until all the other information is in place. + */ + if (end < entry) { /* wrapped buffer */ + len = (lp->txRingMask - entry + 1) * TX_BUFF_SZ; + memcpy_toio(lp->tx_buff[entry], skb->data, len); + memcpy_toio(lp->tx_buff[0], skb->data + len, skb->len - len); + } else { /* linear buffer */ + memcpy_toio(lp->tx_buff[entry], skb->data, skb->len); + } - return status; + /* set up the buffer descriptors */ + len = (skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len; + for (i = entry; i != end; i = (++i) & lp->txRingMask) { + /* clean out flags */ + writel(readl(&lp->tx_ring[i].base) & ~T_FLAGS, &lp->tx_ring[i].base); + writew(0x0000, &lp->tx_ring[i].misc); /* clears other error flags */ + writew(-TX_BUFF_SZ, &lp->tx_ring[i].length); /* packet length in buffer */ + len -= TX_BUFF_SZ; + } + /* clean out flags */ + writel(readl(&lp->tx_ring[end].base) & ~T_FLAGS, &lp->tx_ring[end].base); + writew(0x0000, &lp->tx_ring[end].misc); /* clears other error flags */ + writew(-len, &lp->tx_ring[end].length); /* packet length in last buff */ + + /* start of packet */ + writel(readl(&lp->tx_ring[entry].base) | T_STP, &lp->tx_ring[entry].base); + /* end of packet */ + writel(readl(&lp->tx_ring[end].base) | T_ENP, &lp->tx_ring[end].base); + + for (i = end; i != entry; --i) { + /* ownership of packet */ + writel(readl(&lp->tx_ring[i].base) | T_OWN, &lp->tx_ring[i].base); + if (i == 0) + i = lp->txRingMask + 1; + } + writel(readl(&lp->tx_ring[entry].base) | T_OWN, &lp->tx_ring[entry].base); + + lp->tx_new = (++end) & lp->txRingMask; /* update current pointers */ + } else { + status = -1; + } + + return status; } /* ** Look for a particular board name in the EISA configuration space */ -static int __init -EISA_signature(char *name, s32 eisa_id) +static int __init EISA_signature(char *name, s32 eisa_id) { - u_int i; - const char *signatures[] = DEPCA_SIGNATURE; - char ManCode[DEPCA_STRLEN]; - union { - s32 ID; - char Id[4]; - } Eisa; - int status = 0; - - *name = '\0'; - Eisa.ID = inl(eisa_id); - - ManCode[0]=(((Eisa.Id[0]>>2)&0x1f)+0x40); - ManCode[1]=(((Eisa.Id[1]&0xe0)>>5)+((Eisa.Id[0]&0x03)<<3)+0x40); - ManCode[2]=(((Eisa.Id[2]>>4)&0x0f)+0x30); - ManCode[3]=(( Eisa.Id[2]&0x0f)+0x30); - ManCode[4]=(((Eisa.Id[3]>>4)&0x0f)+0x30); - ManCode[5]='\0'; - - for (i=0;(*signatures[i] != '\0') && (*name == '\0');i++) { - if (strstr(ManCode, signatures[i]) != NULL) { - strcpy(name,ManCode); - status = 1; - } - } + u_int i; + const char *signatures[] = DEPCA_SIGNATURE; + char ManCode[DEPCA_STRLEN]; + union { + s32 ID; + char Id[4]; + } Eisa; + int status = 0; + + *name = '\0'; + Eisa.ID = inl(eisa_id); + + ManCode[0] = (((Eisa.Id[0] >> 2) & 0x1f) + 0x40); + ManCode[1] = (((Eisa.Id[1] & 0xe0) >> 5) + ((Eisa.Id[0] & 0x03) << 3) + 0x40); + ManCode[2] = (((Eisa.Id[2] >> 4) & 0x0f) + 0x30); + ManCode[3] = ((Eisa.Id[2] & 0x0f) + 0x30); + ManCode[4] = (((Eisa.Id[3] >> 4) & 0x0f) + 0x30); + ManCode[5] = '\0'; + + for (i = 0; (*signatures[i] != '\0') && (*name == '\0'); i++) { + if (strstr(ManCode, signatures[i]) != NULL) { + strcpy(name, ManCode); + status = 1; + } + } - return status; + return status; } static void depca_dbg_open(struct net_device *dev) { - struct depca_private *lp = (struct depca_private *)dev->priv; - u_long ioaddr = dev->base_addr; - struct depca_init *p = &lp->init_block; - int i; - - if (depca_debug > 1){ - /* Do not copy the shadow init block into shared memory */ - /* Debugging should not affect normal operation! */ - /* The shadow init block will get copied across during InitRestartDepca */ - printk("%s: depca open with irq %d\n",dev->name,dev->irq); - printk("Descriptor head addresses (CPU):\n"); - printk(" 0x%lx 0x%lx\n",(u_long)lp->rx_ring, (u_long)lp->tx_ring); - printk("Descriptor addresses (CPU):\nRX: "); - for (i=0;irxRingMask;i++){ - if (i < 3) { - printk("0x%8.8lx ", (long) &lp->rx_ring[i].base); - } - } - printk("...0x%8.8lx\n", (long) &lp->rx_ring[i].base); - printk("TX: "); - for (i=0;itxRingMask;i++){ - if (i < 3) { - printk("0x%8.8lx ", (long) &lp->tx_ring[i].base); - } - } - printk("...0x%8.8lx\n", (long) &lp->tx_ring[i].base); - printk("\nDescriptor buffers (Device):\nRX: "); - for (i=0;irxRingMask;i++){ - if (i < 3) { - printk("0x%8.8x ", readl(&lp->rx_ring[i].base)); - } - } - printk("...0x%8.8x\n", readl(&lp->rx_ring[i].base)); - printk("TX: "); - for (i=0;itxRingMask;i++){ - if (i < 3) { - printk("0x%8.8x ", readl(&lp->tx_ring[i].base)); - } - } - printk("...0x%8.8x\n", readl(&lp->tx_ring[i].base)); - printk("Initialisation block at 0x%8.8lx(Phys)\n",virt_to_phys(lp->sh_mem)); - printk(" mode: 0x%4.4x\n",p->mode); - printk(" physical address: "); - for (i=0;iphys_addr[i]); - } - printk("%2.2x\n", p->phys_addr[i]); - printk(" multicast hash table: "); - for (i=0;i<(HASH_TABLE_LEN >> 3)-1;i++){ - printk("%2.2x:", p->mcast_table[i]); - } - printk("%2.2x\n", p->mcast_table[i]); - printk(" rx_ring at: 0x%8.8x\n", p->rx_ring); - printk(" tx_ring at: 0x%8.8x\n", p->tx_ring); - printk("buffers (Phys): 0x%8.8lx\n",virt_to_phys(lp->sh_mem)+lp->buffs_offset); - printk("Ring size:\nRX: %d Log2(rxRingMask): 0x%8.8x\n", - (int)lp->rxRingMask + 1, - lp->rx_rlen); - printk("TX: %d Log2(txRingMask): 0x%8.8x\n", - (int)lp->txRingMask + 1, - lp->tx_rlen); - outw(CSR2,DEPCA_ADDR); - printk("CSR2&1: 0x%4.4x",inw(DEPCA_DATA)); - outw(CSR1,DEPCA_ADDR); - printk("%4.4x\n",inw(DEPCA_DATA)); - outw(CSR3,DEPCA_ADDR); - printk("CSR3: 0x%4.4x\n",inw(DEPCA_DATA)); - } + struct depca_private *lp = (struct depca_private *) dev->priv; + u_long ioaddr = dev->base_addr; + struct depca_init *p = &lp->init_block; + int i; - return; + if (depca_debug > 1) { + /* Do not copy the shadow init block into shared memory */ + /* Debugging should not affect normal operation! */ + /* The shadow init block will get copied across during InitRestartDepca */ + printk("%s: depca open with irq %d\n", dev->name, dev->irq); + printk("Descriptor head addresses (CPU):\n"); + printk(" 0x%lx 0x%lx\n", (u_long) lp->rx_ring, (u_long) lp->tx_ring); + printk("Descriptor addresses (CPU):\nRX: "); + for (i = 0; i < lp->rxRingMask; i++) { + if (i < 3) { + printk("0x%8.8lx ", (long) &lp->rx_ring[i].base); + } + } + printk("...0x%8.8lx\n", (long) &lp->rx_ring[i].base); + printk("TX: "); + for (i = 0; i < lp->txRingMask; i++) { + if (i < 3) { + printk("0x%8.8lx ", (long) &lp->tx_ring[i].base); + } + } + printk("...0x%8.8lx\n", (long) &lp->tx_ring[i].base); + printk("\nDescriptor buffers (Device):\nRX: "); + for (i = 0; i < lp->rxRingMask; i++) { + if (i < 3) { + printk("0x%8.8x ", readl(&lp->rx_ring[i].base)); + } + } + printk("...0x%8.8x\n", readl(&lp->rx_ring[i].base)); + printk("TX: "); + for (i = 0; i < lp->txRingMask; i++) { + if (i < 3) { + printk("0x%8.8x ", readl(&lp->tx_ring[i].base)); + } + } + printk("...0x%8.8x\n", readl(&lp->tx_ring[i].base)); + printk("Initialisation block at 0x%8.8lx(Phys)\n", virt_to_phys(lp->sh_mem)); + printk(" mode: 0x%4.4x\n", p->mode); + printk(" physical address: "); + for (i = 0; i < ETH_ALEN - 1; i++) { + printk("%2.2x:", p->phys_addr[i]); + } + printk("%2.2x\n", p->phys_addr[i]); + printk(" multicast hash table: "); + for (i = 0; i < (HASH_TABLE_LEN >> 3) - 1; i++) { + printk("%2.2x:", p->mcast_table[i]); + } + printk("%2.2x\n", p->mcast_table[i]); + printk(" rx_ring at: 0x%8.8x\n", p->rx_ring); + printk(" tx_ring at: 0x%8.8x\n", p->tx_ring); + printk("buffers (Phys): 0x%8.8lx\n", virt_to_phys(lp->sh_mem) + lp->buffs_offset); + printk("Ring size:\nRX: %d Log2(rxRingMask): 0x%8.8x\n", (int) lp->rxRingMask + 1, lp->rx_rlen); + printk("TX: %d Log2(txRingMask): 0x%8.8x\n", (int) lp->txRingMask + 1, lp->tx_rlen); + outw(CSR2, DEPCA_ADDR); + printk("CSR2&1: 0x%4.4x", inw(DEPCA_DATA)); + outw(CSR1, DEPCA_ADDR); + printk("%4.4x\n", inw(DEPCA_DATA)); + outw(CSR3, DEPCA_ADDR); + printk("CSR3: 0x%4.4x\n", inw(DEPCA_DATA)); + } + + return; } /* @@ -1906,177 +1888,196 @@ */ static int depca_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { - struct depca_private *lp = (struct depca_private *)dev->priv; - struct depca_ioctl *ioc = (struct depca_ioctl *) &rq->ifr_data; - int i, status = 0; - u_long ioaddr = dev->base_addr; - union { - u8 addr[(HASH_TABLE_LEN * ETH_ALEN)]; - u16 sval[(HASH_TABLE_LEN * ETH_ALEN) >> 1]; - u32 lval[(HASH_TABLE_LEN * ETH_ALEN) >> 2]; - } tmp; - - switch(ioc->cmd) { - case DEPCA_GET_HWADDR: /* Get the hardware address */ - for (i=0; idev_addr[i]; - } - ioc->len = ETH_ALEN; - if (copy_to_user(ioc->data, tmp.addr, ioc->len)) - return -EFAULT; - break; - - case DEPCA_SET_HWADDR: /* Set the hardware address */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (copy_from_user(tmp.addr, ioc->data, ETH_ALEN)) - return -EFAULT; - for (i=0; idev_addr[i] = tmp.addr[i]; - } - netif_stop_queue(dev); - while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */ - - STOP_DEPCA; /* Temporarily stop the depca. */ - depca_init_ring(dev); /* Initialize the descriptor rings */ - LoadCSRs(dev); /* Reload CSR3 */ - InitRestartDepca(dev); /* Resume normal operation. */ - netif_start_queue(dev); /* Unlock the TX ring */ - break; - - case DEPCA_SET_PROM: /* Set Promiscuous Mode */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - netif_stop_queue(dev); - while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */ - - STOP_DEPCA; /* Temporarily stop the depca. */ - depca_init_ring(dev); /* Initialize the descriptor rings */ - lp->init_block.mode |= PROM; /* Set promiscuous mode */ - - LoadCSRs(dev); /* Reload CSR3 */ - InitRestartDepca(dev); /* Resume normal operation. */ - netif_start_queue(dev); /* Unlock the TX ring */ - break; - - case DEPCA_CLR_PROM: /* Clear Promiscuous Mode */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - netif_stop_queue(dev); - while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */ - - STOP_DEPCA; /* Temporarily stop the depca. */ - depca_init_ring(dev); /* Initialize the descriptor rings */ - lp->init_block.mode &= ~PROM; /* Clear promiscuous mode */ - - LoadCSRs(dev); /* Reload CSR3 */ - InitRestartDepca(dev); /* Resume normal operation. */ - netif_start_queue(dev); /* Unlock the TX ring */ - break; - - case DEPCA_SAY_BOO: /* Say "Boo!" to the kernel log file */ - printk("%s: Boo!\n", dev->name); - break; - - case DEPCA_GET_MCA: /* Get the multicast address table */ - ioc->len = (HASH_TABLE_LEN >> 3); - if (copy_to_user(ioc->data, lp->init_block.mcast_table, ioc->len)) - return -EFAULT; - break; - - case DEPCA_SET_MCA: /* Set a multicast address */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (copy_from_user(tmp.addr, ioc->data, ETH_ALEN * ioc->len)) - return -EFAULT; - set_multicast_list(dev); - break; - - case DEPCA_CLR_MCA: /* Clear all multicast addresses */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - set_multicast_list(dev); - break; - - case DEPCA_MCA_EN: /* Enable pass all multicast addressing */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - set_multicast_list(dev); - break; - - case DEPCA_GET_STATS: /* Get the driver statistics */ - cli(); - ioc->len = sizeof(lp->pktStats); - if (copy_to_user(ioc->data, &lp->pktStats, ioc->len)) - status = -EFAULT; - sti(); - break; - - case DEPCA_CLR_STATS: /* Zero out the driver statistics */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - cli(); - memset(&lp->pktStats, 0, sizeof(lp->pktStats)); - sti(); - break; - - case DEPCA_GET_REG: /* Get the DEPCA Registers */ - i=0; - tmp.sval[i++] = inw(DEPCA_NICSR); - outw(CSR0, DEPCA_ADDR); /* status register */ - tmp.sval[i++] = inw(DEPCA_DATA); - memcpy(&tmp.sval[i], &lp->init_block, sizeof(struct depca_init)); - ioc->len = i+sizeof(struct depca_init); - if (copy_to_user(ioc->data, tmp.addr, ioc->len)) - return -EFAULT; - break; - - default: - return -EOPNOTSUPP; - } + struct depca_private *lp = (struct depca_private *) dev->priv; + struct depca_ioctl *ioc = (struct depca_ioctl *) &rq->ifr_data; + int i, status = 0; + u_long ioaddr = dev->base_addr; + union { + u8 addr[(HASH_TABLE_LEN * ETH_ALEN)]; + u16 sval[(HASH_TABLE_LEN * ETH_ALEN) >> 1]; + u32 lval[(HASH_TABLE_LEN * ETH_ALEN) >> 2]; + } tmp; + unsigned long flags; + void *buf; + + switch (ioc->cmd) { + case DEPCA_GET_HWADDR: /* Get the hardware address */ + for (i = 0; i < ETH_ALEN; i++) { + tmp.addr[i] = dev->dev_addr[i]; + } + ioc->len = ETH_ALEN; + if (copy_to_user(ioc->data, tmp.addr, ioc->len)) + return -EFAULT; + break; - return status; + case DEPCA_SET_HWADDR: /* Set the hardware address */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (copy_from_user(tmp.addr, ioc->data, ETH_ALEN)) + return -EFAULT; + for (i = 0; i < ETH_ALEN; i++) { + dev->dev_addr[i] = tmp.addr[i]; + } + netif_stop_queue(dev); + while (lp->tx_old != lp->tx_new) + cpu_relax(); /* Wait for the ring to empty */ + + STOP_DEPCA; /* Temporarily stop the depca. */ + depca_init_ring(dev); /* Initialize the descriptor rings */ + LoadCSRs(dev); /* Reload CSR3 */ + InitRestartDepca(dev); /* Resume normal operation. */ + netif_start_queue(dev); /* Unlock the TX ring */ + break; + + case DEPCA_SET_PROM: /* Set Promiscuous Mode */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + netif_stop_queue(dev); + while (lp->tx_old != lp->tx_new) + cpu_relax(); /* Wait for the ring to empty */ + + STOP_DEPCA; /* Temporarily stop the depca. */ + depca_init_ring(dev); /* Initialize the descriptor rings */ + lp->init_block.mode |= PROM; /* Set promiscuous mode */ + + LoadCSRs(dev); /* Reload CSR3 */ + InitRestartDepca(dev); /* Resume normal operation. */ + netif_start_queue(dev); /* Unlock the TX ring */ + break; + + case DEPCA_CLR_PROM: /* Clear Promiscuous Mode */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + netif_stop_queue(dev); + while (lp->tx_old != lp->tx_new) + cpu_relax(); /* Wait for the ring to empty */ + + STOP_DEPCA; /* Temporarily stop the depca. */ + depca_init_ring(dev); /* Initialize the descriptor rings */ + lp->init_block.mode &= ~PROM; /* Clear promiscuous mode */ + + LoadCSRs(dev); /* Reload CSR3 */ + InitRestartDepca(dev); /* Resume normal operation. */ + netif_start_queue(dev); /* Unlock the TX ring */ + break; + + case DEPCA_SAY_BOO: /* Say "Boo!" to the kernel log file */ + if(!capable(CAP_NET_ADMIN)) + return -EPERM; + printk("%s: Boo!\n", dev->name); + break; + + case DEPCA_GET_MCA: /* Get the multicast address table */ + ioc->len = (HASH_TABLE_LEN >> 3); + if (copy_to_user(ioc->data, lp->init_block.mcast_table, ioc->len)) + return -EFAULT; + break; + + case DEPCA_SET_MCA: /* Set a multicast address */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (ioc->len >= HASH_TABLE_LEN) + return -EINVAL; + if (copy_from_user(tmp.addr, ioc->data, ETH_ALEN * ioc->len)) + return -EFAULT; + set_multicast_list(dev); + break; + + case DEPCA_CLR_MCA: /* Clear all multicast addresses */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + set_multicast_list(dev); + break; + + case DEPCA_MCA_EN: /* Enable pass all multicast addressing */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + set_multicast_list(dev); + break; + + case DEPCA_GET_STATS: /* Get the driver statistics */ + ioc->len = sizeof(lp->pktStats); + buf = kmalloc(ioc->len, GFP_KERNEL); + if(!buf) + return -ENOMEM; + spin_lock_irqsave(&lp->lock, flags); + memcpy(buf, &lp->pktStats, ioc->len); + spin_unlock_irqrestore(&lp->lock, flags); + if (copy_to_user(ioc->data, &lp->pktStats, ioc->len)) + status = -EFAULT; + kfree(buf); + break; + + case DEPCA_CLR_STATS: /* Zero out the driver statistics */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + spin_lock_irqsave(&lp->lock, flags); + memset(&lp->pktStats, 0, sizeof(lp->pktStats)); + spin_unlock_irqrestore(&lp->lock, flags); + break; + + case DEPCA_GET_REG: /* Get the DEPCA Registers */ + i = 0; + tmp.sval[i++] = inw(DEPCA_NICSR); + outw(CSR0, DEPCA_ADDR); /* status register */ + tmp.sval[i++] = inw(DEPCA_DATA); + memcpy(&tmp.sval[i], &lp->init_block, sizeof(struct depca_init)); + ioc->len = i + sizeof(struct depca_init); + if (copy_to_user(ioc->data, tmp.addr, ioc->len)) + return -EFAULT; + break; + + default: + return -EOPNOTSUPP; + } + + return status; } #ifdef MODULE static struct net_device thisDepca; -static int irq=7; /* EDIT THESE LINE FOR YOUR CONFIGURATION */ -static int io=0x200; /* Or use the irq= io= options to insmod */ +static int irq = 7; /* EDIT THESE LINE FOR YOUR CONFIGURATION */ +static int io = 0x200; /* Or use the irq= io= options to insmod */ MODULE_PARM(irq, "i"); MODULE_PARM(io, "i"); MODULE_PARM_DESC(irq, "DEPCA IRQ number"); MODULE_PARM_DESC(io, "DEPCA I/O base address"); -/* See depca_probe() for autoprobe messages when a module */ -int -init_module(void) +/* See depca_probe() for autoprobe messages when a module */ +int init_module(void) { - thisDepca.irq=irq; - thisDepca.base_addr=io; - thisDepca.init = depca_probe; + thisDepca.irq = irq; + thisDepca.base_addr = io; + thisDepca.init = depca_probe; - if (register_netdev(&thisDepca) != 0) - return -EIO; + if (register_netdev(&thisDepca) != 0) + return -EIO; - return 0; + return 0; } -void -cleanup_module(void) +void cleanup_module(void) { - struct depca_private *lp = thisDepca.priv; + struct depca_private *lp = thisDepca.priv; - unregister_netdev(&thisDepca); - if (lp) { - iounmap(lp->sh_mem); -#ifdef CONFIG_MCA - if(lp->mca_slot != -1) - mca_mark_as_unused(lp->mca_slot); -#endif - kfree(lp); - thisDepca.priv = NULL; - } - thisDepca.irq=0; + unregister_netdev(&thisDepca); + if (lp) { + iounmap(lp->sh_mem); +#ifdef CONFIG_MCA + if (lp->mca_slot != -1) + mca_mark_as_unused(lp->mca_slot); +#endif + kfree(lp); + thisDepca.priv = NULL; + } + thisDepca.irq = 0; - release_region(thisDepca.base_addr, DEPCA_TOTAL_SIZE); + release_region(thisDepca.base_addr, DEPCA_TOTAL_SIZE); } -#endif /* MODULE */ +#endif /* MODULE */ MODULE_LICENSE("GPL"); - + /* * Local variables: * compile-command: "gcc -D__KERNEL__ -I/linux/include -Wall -Wstrict-prototypes -fomit-frame-pointer -fno-strength-reduce -malign-loops=2 -malign-jumps=2 -malign-functions=2 -O2 -m486 -c depca.c" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/