diff options
Diffstat (limited to 'drivers/net/ethernet/i825xx')
| -rw-r--r-- | drivers/net/ethernet/i825xx/3c505.c | 1671 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/3c505.h | 292 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/3c507.c | 938 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/82596.c | 94 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/Kconfig | 92 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/Makefile | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/eepro.c | 1822 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/eexpress.c | 1661 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/eexpress.h | 179 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/lp486e.c | 1337 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/ni52.c | 1346 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/ni52.h | 310 | ||||
| -rw-r--r-- | drivers/net/ethernet/i825xx/znet.c | 928 |
13 files changed, 9 insertions, 10669 deletions
diff --git a/drivers/net/ethernet/i825xx/3c505.c b/drivers/net/ethernet/i825xx/3c505.c deleted file mode 100644 index 6a5c21b82c51..000000000000 --- a/drivers/net/ethernet/i825xx/3c505.c +++ /dev/null @@ -1,1671 +0,0 @@ -/* - * Linux Ethernet device driver for the 3Com Etherlink Plus (3C505) - * By Craig Southeren, Juha Laiho and Philip Blundell - * - * 3c505.c This module implements an interface to the 3Com - * Etherlink Plus (3c505) Ethernet card. Linux device - * driver interface reverse engineered from the Linux 3C509 - * device drivers. Some 3C505 information gleaned from - * the Crynwr packet driver. Still this driver would not - * be here without 3C505 technical reference provided by - * 3Com. - * - * $Id: 3c505.c,v 1.10 1996/04/16 13:06:27 phil Exp $ - * - * Authors: Linux 3c505 device driver by - * Craig Southeren, <craigs@ineluki.apana.org.au> - * Final debugging by - * Andrew Tridgell, <tridge@nimbus.anu.edu.au> - * Auto irq/address, tuning, cleanup and v1.1.4+ kernel mods by - * Juha Laiho, <jlaiho@ichaos.nullnet.fi> - * Linux 3C509 driver by - * Donald Becker, <becker@super.org> - * (Now at <becker@scyld.com>) - * Crynwr packet driver by - * Krishnan Gopalan and Gregg Stefancik, - * Clemson University Engineering Computer Operations. - * Portions of the code have been adapted from the 3c505 - * driver for NCSA Telnet by Bruce Orchard and later - * modified by Warren Van Houten and krus@diku.dk. - * 3C505 technical information provided by - * Terry Murphy, of 3Com Network Adapter Division - * Linux 1.3.0 changes by - * Alan Cox <Alan.Cox@linux.org> - * More debugging, DMA support, currently maintained by - * Philip Blundell <philb@gnu.org> - * Multicard/soft configurable dma channel/rev 2 hardware support - * by Christopher Collins <ccollins@pcug.org.au> - * Ethtool support (jgarzik), 11/17/2001 - */ - -#define DRV_NAME "3c505" -#define DRV_VERSION "1.10a" - - -/* Theory of operation: - * - * The 3c505 is quite an intelligent board. All communication with it is done - * by means of Primary Command Blocks (PCBs); these are transferred using PIO - * through the command register. The card has 256k of on-board RAM, which is - * used to buffer received packets. It might seem at first that more buffers - * are better, but in fact this isn't true. From my tests, it seems that - * more than about 10 buffers are unnecessary, and there is a noticeable - * performance hit in having more active on the card. So the majority of the - * card's memory isn't, in fact, used. Sadly, the card only has one transmit - * buffer and, short of loading our own firmware into it (which is what some - * drivers resort to) there's nothing we can do about this. - * - * We keep up to 4 "receive packet" commands active on the board at a time. - * When a packet comes in, so long as there is a receive command active, the - * board will send us a "packet received" PCB and then add the data for that - * packet to the DMA queue. If a DMA transfer is not already in progress, we - * set one up to start uploading the data. We have to maintain a list of - * backlogged receive packets, because the card may decide to tell us about - * a newly-arrived packet at any time, and we may not be able to start a DMA - * transfer immediately (ie one may already be going on). We can't NAK the - * PCB, because then it would throw the packet away. - * - * Trying to send a PCB to the card at the wrong moment seems to have bad - * effects. If we send it a transmit PCB while a receive DMA is happening, - * it will just NAK the PCB and so we will have wasted our time. Worse, it - * sometimes seems to interrupt the transfer. The majority of the low-level - * code is protected by one huge semaphore -- "busy" -- which is set whenever - * it probably isn't safe to do anything to the card. The receive routine - * must gain a lock on "busy" before it can start a DMA transfer, and the - * transmit routine must gain a lock before it sends the first PCB to the card. - * The send_pcb() routine also has an internal semaphore to protect it against - * being re-entered (which would be disastrous) -- this is needed because - * several things can happen asynchronously (re-priming the receiver and - * asking the card for statistics, for example). send_pcb() will also refuse - * to talk to the card at all if a DMA upload is happening. The higher-level - * networking code will reschedule a later retry if some part of the driver - * is blocked. In practice, this doesn't seem to happen very often. - */ - -/* This driver may now work with revision 2.x hardware, since all the read - * operations on the HCR have been removed (we now keep our own softcopy). - * But I don't have an old card to test it on. - * - * This has had the bad effect that the autoprobe routine is now a bit - * less friendly to other devices. However, it was never very good. - * before, so I doubt it will hurt anybody. - */ - -/* The driver is a mess. I took Craig's and Juha's code, and hacked it firstly - * to make it more reliable, and secondly to add DMA mode. Many things could - * probably be done better; the concurrency protection is particularly awful. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/interrupt.h> -#include <linux/errno.h> -#include <linux/in.h> -#include <linux/ioport.h> -#include <linux/spinlock.h> -#include <linux/ethtool.h> -#include <linux/delay.h> -#include <linux/bitops.h> -#include <linux/gfp.h> - -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/dma.h> - -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/init.h> - -#include "3c505.h" - -/********************************************************* - * - * define debug messages here as common strings to reduce space - * - *********************************************************/ - -#define timeout_msg "*** timeout at %s:%s (line %d) ***\n" -#define TIMEOUT_MSG(lineno) \ - pr_notice(timeout_msg, __FILE__, __func__, (lineno)) - -#define invalid_pcb_msg "*** invalid pcb length %d at %s:%s (line %d) ***\n" -#define INVALID_PCB_MSG(len) \ - pr_notice(invalid_pcb_msg, (len), __FILE__, __func__, __LINE__) - -#define search_msg "%s: Looking for 3c505 adapter at address %#x..." - -#define stilllooking_msg "still looking..." - -#define found_msg "found.\n" - -#define notfound_msg "not found (reason = %d)\n" - -#define couldnot_msg "%s: 3c505 not found\n" - -/********************************************************* - * - * various other debug stuff - * - *********************************************************/ - -#ifdef ELP_DEBUG -static int elp_debug = ELP_DEBUG; -#else -static int elp_debug; -#endif -#define debug elp_debug - -/* - * 0 = no messages (well, some) - * 1 = messages when high level commands performed - * 2 = messages when low level commands performed - * 3 = messages when interrupts received - */ - -/***************************************************************** - * - * List of I/O-addresses we try to auto-sense - * Last element MUST BE 0! - *****************************************************************/ - -static int addr_list[] __initdata = {0x300, 0x280, 0x310, 0}; - -/* Dma Memory related stuff */ - -static unsigned long dma_mem_alloc(int size) -{ - int order = get_order(size); - return __get_dma_pages(GFP_KERNEL, order); -} - - -/***************************************************************** - * - * Functions for I/O (note the inline !) - * - *****************************************************************/ - -static inline unsigned char inb_status(unsigned int base_addr) -{ - return inb(base_addr + PORT_STATUS); -} - -static inline int inb_command(unsigned int base_addr) -{ - return inb(base_addr + PORT_COMMAND); -} - -static inline void outb_control(unsigned char val, struct net_device *dev) -{ - outb(val, dev->base_addr + PORT_CONTROL); - ((elp_device *)(netdev_priv(dev)))->hcr_val = val; -} - -#define HCR_VAL(x) (((elp_device *)(netdev_priv(x)))->hcr_val) - -static inline void outb_command(unsigned char val, unsigned int base_addr) -{ - outb(val, base_addr + PORT_COMMAND); -} - -static inline unsigned int backlog_next(unsigned int n) -{ - return (n + 1) % BACKLOG_SIZE; -} - -/***************************************************************** - * - * useful functions for accessing the adapter - * - *****************************************************************/ - -/* - * use this routine when accessing the ASF bits as they are - * changed asynchronously by the adapter - */ - -/* get adapter PCB status */ -#define GET_ASF(addr) \ - (get_status(addr)&ASF_PCB_MASK) - -static inline int get_status(unsigned int base_addr) -{ - unsigned long timeout = jiffies + 10*HZ/100; - register int stat1; - do { - stat1 = inb_status(base_addr); - } while (stat1 != inb_status(base_addr) && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) - TIMEOUT_MSG(__LINE__); - return stat1; -} - -static inline void set_hsf(struct net_device *dev, int hsf) -{ - elp_device *adapter = netdev_priv(dev); - unsigned long flags; - - spin_lock_irqsave(&adapter->lock, flags); - outb_control((HCR_VAL(dev) & ~HSF_PCB_MASK) | hsf, dev); - spin_unlock_irqrestore(&adapter->lock, flags); -} - -static bool start_receive(struct net_device *, pcb_struct *); - -static inline void adapter_reset(struct net_device *dev) -{ - unsigned long timeout; - elp_device *adapter = netdev_priv(dev); - unsigned char orig_hcr = adapter->hcr_val; - - outb_control(0, dev); - - if (inb_status(dev->base_addr) & ACRF) { - do { - inb_command(dev->base_addr); - timeout = jiffies + 2*HZ/100; - while (time_before_eq(jiffies, timeout) && !(inb_status(dev->base_addr) & ACRF)); - } while (inb_status(dev->base_addr) & ACRF); - set_hsf(dev, HSF_PCB_NAK); - } - outb_control(adapter->hcr_val | ATTN | DIR, dev); - mdelay(10); - outb_control(adapter->hcr_val & ~ATTN, dev); - mdelay(10); - outb_control(adapter->hcr_val | FLSH, dev); - mdelay(10); - outb_control(adapter->hcr_val & ~FLSH, dev); - mdelay(10); - - outb_control(orig_hcr, dev); - if (!start_receive(dev, &adapter->tx_pcb)) - pr_err("%s: start receive command failed\n", dev->name); -} - -/* Check to make sure that a DMA transfer hasn't timed out. This should - * never happen in theory, but seems to occur occasionally if the card gets - * prodded at the wrong time. - */ -static inline void check_3c505_dma(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - if (adapter->dmaing && time_after(jiffies, adapter->current_dma.start_time + 10)) { - unsigned long flags, f; - pr_err("%s: DMA %s timed out, %d bytes left\n", dev->name, - adapter->current_dma.direction ? "download" : "upload", - get_dma_residue(dev->dma)); - spin_lock_irqsave(&adapter->lock, flags); - adapter->dmaing = 0; - adapter->busy = 0; - - f=claim_dma_lock(); - disable_dma(dev->dma); - release_dma_lock(f); - - if (adapter->rx_active) - adapter->rx_active--; - outb_control(adapter->hcr_val & ~(DMAE | TCEN | DIR), dev); - spin_unlock_irqrestore(&adapter->lock, flags); - } -} - -/* Primitive functions used by send_pcb() */ -static inline bool send_pcb_slow(unsigned int base_addr, unsigned char byte) -{ - unsigned long timeout; - outb_command(byte, base_addr); - for (timeout = jiffies + 5*HZ/100; time_before(jiffies, timeout);) { - if (inb_status(base_addr) & HCRE) - return false; - } - pr_warning("3c505: send_pcb_slow timed out\n"); - return true; -} - -static inline bool send_pcb_fast(unsigned int base_addr, unsigned char byte) -{ - unsigned int timeout; - outb_command(byte, base_addr); - for (timeout = 0; timeout < 40000; timeout++) { - if (inb_status(base_addr) & HCRE) - return false; - } - pr_warning("3c505: send_pcb_fast timed out\n"); - return true; -} - -/* Check to see if the receiver needs restarting, and kick it if so */ -static inline void prime_rx(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - while (adapter->rx_active < ELP_RX_PCBS && netif_running(dev)) { - if (!start_receive(dev, &adapter->itx_pcb)) - break; - } -} - -/***************************************************************** - * - * send_pcb - * Send a PCB to the adapter. - * - * output byte to command reg --<--+ - * wait until HCRE is non zero | - * loop until all bytes sent -->--+ - * set HSF1 and HSF2 to 1 - * output pcb length - * wait until ASF give ACK or NAK - * set HSF1 and HSF2 to 0 - * - *****************************************************************/ - -/* This can be quite slow -- the adapter is allowed to take up to 40ms - * to respond to the initial interrupt. - * - * We run initially with interrupts turned on, but with a semaphore set - * so that nobody tries to re-enter this code. Once the first byte has - * gone through, we turn interrupts off and then send the others (the - * timeout is reduced to 500us). - */ - -static bool send_pcb(struct net_device *dev, pcb_struct * pcb) -{ - int i; - unsigned long timeout; - elp_device *adapter = netdev_priv(dev); - unsigned long flags; - - check_3c505_dma(dev); - - if (adapter->dmaing && adapter->current_dma.direction == 0) - return false; - - /* Avoid contention */ - if (test_and_set_bit(1, &adapter->send_pcb_semaphore)) { - if (elp_debug >= 3) { - pr_debug("%s: send_pcb entered while threaded\n", dev->name); - } - return false; - } - /* - * load each byte into the command register and - * wait for the HCRE bit to indicate the adapter - * had read the byte - */ - set_hsf(dev, 0); - - if (send_pcb_slow(dev->base_addr, pcb->command)) - goto abort; - - spin_lock_irqsave(&adapter->lock, flags); - - if (send_pcb_fast(dev->base_addr, pcb->length)) - goto sti_abort; - - for (i = 0; i < pcb->length; i++) { - if (send_pcb_fast(dev->base_addr, pcb->data.raw[i])) - goto sti_abort; - } - - outb_control(adapter->hcr_val | 3, dev); /* signal end of PCB */ - outb_command(2 + pcb->length, dev->base_addr); - - /* now wait for the acknowledgement */ - spin_unlock_irqrestore(&adapter->lock, flags); - - for (timeout = jiffies + 5*HZ/100; time_before(jiffies, timeout);) { - switch (GET_ASF(dev->base_addr)) { - case ASF_PCB_ACK: - adapter->send_pcb_semaphore = 0; - return true; - - case ASF_PCB_NAK: -#ifdef ELP_DEBUG - pr_debug("%s: send_pcb got NAK\n", dev->name); -#endif - goto abort; - } - } - - if (elp_debug >= 1) - pr_debug("%s: timeout waiting for PCB acknowledge (status %02x)\n", - dev->name, inb_status(dev->base_addr)); - goto abort; - - sti_abort: - spin_unlock_irqrestore(&adapter->lock, flags); - abort: - adapter->send_pcb_semaphore = 0; - return false; -} - - -/***************************************************************** - * - * receive_pcb - * Read a PCB from the adapter - * - * wait for ACRF to be non-zero ---<---+ - * input a byte | - * if ASF1 and ASF2 were not both one | - * before byte was read, loop --->---+ - * set HSF1 and HSF2 for ack - * - *****************************************************************/ - -static bool receive_pcb(struct net_device *dev, pcb_struct * pcb) -{ - int i, j; - int total_length; - int stat; - unsigned long timeout; - unsigned long flags; - - elp_device *adapter = netdev_priv(dev); - - set_hsf(dev, 0); - - /* get the command code */ - timeout = jiffies + 2*HZ/100; - while (((stat = get_status(dev->base_addr)) & ACRF) == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) { - TIMEOUT_MSG(__LINE__); - return false; - } - pcb->command = inb_command(dev->base_addr); - - /* read the data length */ - timeout = jiffies + 3*HZ/100; - while (((stat = get_status(dev->base_addr)) & ACRF) == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) { - TIMEOUT_MSG(__LINE__); - pr_info("%s: status %02x\n", dev->name, stat); - return false; - } - pcb->length = inb_command(dev->base_addr); - - if (pcb->length > MAX_PCB_DATA) { - INVALID_PCB_MSG(pcb->length); - adapter_reset(dev); - return false; - } - /* read the data */ - spin_lock_irqsave(&adapter->lock, flags); - for (i = 0; i < MAX_PCB_DATA; i++) { - for (j = 0; j < 20000; j++) { - stat = get_status(dev->base_addr); - if (stat & ACRF) - break; - } - pcb->data.raw[i] = inb_command(dev->base_addr); - if ((stat & ASF_PCB_MASK) == ASF_PCB_END || j >= 20000) - break; - } - spin_unlock_irqrestore(&adapter->lock, flags); - if (i >= MAX_PCB_DATA) { - INVALID_PCB_MSG(i); - return false; - } - if (j >= 20000) { - TIMEOUT_MSG(__LINE__); - return false; - } - /* the last "data" byte was really the length! */ - total_length = pcb->data.raw[i]; - - /* safety check total length vs data length */ - if (total_length != (pcb->length + 2)) { - if (elp_debug >= 2) - pr_warning("%s: mangled PCB received\n", dev->name); - set_hsf(dev, HSF_PCB_NAK); - return false; - } - - if (pcb->command == CMD_RECEIVE_PACKET_COMPLETE) { - if (test_and_set_bit(0, (void *) &adapter->busy)) { - if (backlog_next(adapter->rx_backlog.in) == adapter->rx_backlog.out) { - set_hsf(dev, HSF_PCB_NAK); - pr_warning("%s: PCB rejected, transfer in progress and backlog full\n", dev->name); - pcb->command = 0; - return true; - } else { - pcb->command = 0xff; - } - } - } - set_hsf(dev, HSF_PCB_ACK); - return true; -} - -/****************************************************** - * - * queue a receive command on the adapter so we will get an - * interrupt when a packet is received. - * - ******************************************************/ - -static bool start_receive(struct net_device *dev, pcb_struct * tx_pcb) -{ - bool status; - elp_device *adapter = netdev_priv(dev); - - if (elp_debug >= 3) - pr_debug("%s: restarting receiver\n", dev->name); - tx_pcb->command = CMD_RECEIVE_PACKET; - tx_pcb->length = sizeof(struct Rcv_pkt); - tx_pcb->data.rcv_pkt.buf_seg - = tx_pcb->data.rcv_pkt.buf_ofs = 0; /* Unused */ - tx_pcb->data.rcv_pkt.buf_len = 1600; - tx_pcb->data.rcv_pkt.timeout = 0; /* set timeout to zero */ - status = send_pcb(dev, tx_pcb); - if (status) - adapter->rx_active++; - return status; -} - -/****************************************************** - * - * extract a packet from the adapter - * this routine is only called from within the interrupt - * service routine, so no cli/sti calls are needed - * note that the length is always assumed to be even - * - ******************************************************/ - -static void receive_packet(struct net_device *dev, int len) -{ - int rlen; - elp_device *adapter = netdev_priv(dev); - void *target; - struct sk_buff *skb; - unsigned long flags; - - rlen = (len + 1) & ~1; - skb = netdev_alloc_skb(dev, rlen + 2); - - if (!skb) { - pr_warning("%s: memory squeeze, dropping packet\n", dev->name); - target = adapter->dma_buffer; - adapter->current_dma.target = NULL; - /* FIXME: stats */ - return; - } - - skb_reserve(skb, 2); - target = skb_put(skb, rlen); - if ((unsigned long)(target + rlen) >= MAX_DMA_ADDRESS) { - adapter->current_dma.target = target; - target = adapter->dma_buffer; - } else { - adapter->current_dma.target = NULL; - } - - /* if this happens, we die */ - if (test_and_set_bit(0, (void *) &adapter->dmaing)) - pr_err("%s: rx blocked, DMA in progress, dir %d\n", - dev->name, adapter->current_dma.direction); - - adapter->current_dma.direction = 0; - adapter->current_dma.length = rlen; - adapter->current_dma.skb = skb; - adapter->current_dma.start_time = jiffies; - - outb_control(adapter->hcr_val | DIR | TCEN | DMAE, dev); - - flags=claim_dma_lock(); - disable_dma(dev->dma); - clear_dma_ff(dev->dma); - set_dma_mode(dev->dma, 0x04); /* dma read */ - set_dma_addr(dev->dma, isa_virt_to_bus(target)); - set_dma_count(dev->dma, rlen); - enable_dma(dev->dma); - release_dma_lock(flags); - - if (elp_debug >= 3) { - pr_debug("%s: rx DMA transfer started\n", dev->name); - } - - if (adapter->rx_active) - adapter->rx_active--; - - if (!adapter->busy) - pr_warning("%s: receive_packet called, busy not set.\n", dev->name); -} - -/****************************************************** - * - * interrupt handler - * - ******************************************************/ - -static irqreturn_t elp_interrupt(int irq, void *dev_id) -{ - int len; - int dlen; - int icount = 0; - struct net_device *dev = dev_id; - elp_device *adapter = netdev_priv(dev); - unsigned long timeout; - - spin_lock(&adapter->lock); - - do { - /* - * has a DMA transfer finished? - */ - if (inb_status(dev->base_addr) & DONE) { - if (!adapter->dmaing) - pr_warning("%s: phantom DMA completed\n", dev->name); - - if (elp_debug >= 3) - pr_debug("%s: %s DMA complete, status %02x\n", dev->name, - adapter->current_dma.direction ? "tx" : "rx", - inb_status(dev->base_addr)); - - outb_control(adapter->hcr_val & ~(DMAE | TCEN | DIR), dev); - if (adapter->current_dma.direction) { - dev_kfree_skb_irq(adapter->current_dma.skb); - } else { - struct sk_buff *skb = adapter->current_dma.skb; - if (skb) { - if (adapter->current_dma.target) { - /* have already done the skb_put() */ - memcpy(adapter->current_dma.target, adapter->dma_buffer, adapter->current_dma.length); - } - skb->protocol = eth_type_trans(skb,dev); - dev->stats.rx_bytes += skb->len; - netif_rx(skb); - } - } - adapter->dmaing = 0; - if (adapter->rx_backlog.in != adapter->rx_backlog.out) { - int t = adapter->rx_backlog.length[adapter->rx_backlog.out]; - adapter->rx_backlog.out = backlog_next(adapter->rx_backlog.out); - if (elp_debug >= 2) - pr_debug("%s: receiving backlogged packet (%d)\n", dev->name, t); - receive_packet(dev, t); - } else { - adapter->busy = 0; - } - } else { - /* has one timed out? */ - check_3c505_dma(dev); - } - - /* - * receive a PCB from the adapter - */ - timeout = jiffies + 3*HZ/100; - while ((inb_status(dev->base_addr) & ACRF) != 0 && time_before(jiffies, timeout)) { - if (receive_pcb(dev, &adapter->irx_pcb)) { - switch (adapter->irx_pcb.command) - { - case 0: - break; - /* - * received a packet - this must be handled fast - */ - case 0xff: - case CMD_RECEIVE_PACKET_COMPLETE: - /* if the device isn't open, don't pass packets up the stack */ - if (!netif_running(dev)) - break; - len = adapter->irx_pcb.data.rcv_resp.pkt_len; - dlen = adapter->irx_pcb.data.rcv_resp.buf_len; - if (adapter->irx_pcb.data.rcv_resp.timeout != 0) { - pr_err("%s: interrupt - packet not received correctly\n", dev->name); - } else { - if (elp_debug >= 3) { - pr_debug("%s: interrupt - packet received of length %i (%i)\n", - dev->name, len, dlen); - } - if (adapter->irx_pcb.command == 0xff) { - if (elp_debug >= 2) - pr_debug("%s: adding packet to backlog (len = %d)\n", - dev->name, dlen); - adapter->rx_backlog.length[adapter->rx_backlog.in] = dlen; - adapter->rx_backlog.in = backlog_next(adapter->rx_backlog.in); - } else { - receive_packet(dev, dlen); - } - if (elp_debug >= 3) - pr_debug("%s: packet received\n", dev->name); - } - break; - - /* - * 82586 configured correctly - */ - case CMD_CONFIGURE_82586_RESPONSE: - adapter->got[CMD_CONFIGURE_82586] = 1; - if (elp_debug >= 3) - pr_debug("%s: interrupt - configure response received\n", dev->name); - break; - - /* - * Adapter memory configuration - */ - case CMD_CONFIGURE_ADAPTER_RESPONSE: - adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] = 1; - if (elp_debug >= 3) - pr_debug("%s: Adapter memory configuration %s.\n", dev->name, - adapter->irx_pcb.data.failed ? "failed" : "succeeded"); - break; - - /* - * Multicast list loading - */ - case CMD_LOAD_MULTICAST_RESPONSE: - adapter->got[CMD_LOAD_MULTICAST_LIST] = 1; - if (elp_debug >= 3) - pr_debug("%s: Multicast address list loading %s.\n", dev->name, - adapter->irx_pcb.data.failed ? "failed" : "succeeded"); - break; - - /* - * Station address setting - */ - case CMD_SET_ADDRESS_RESPONSE: - adapter->got[CMD_SET_STATION_ADDRESS] = 1; - if (elp_debug >= 3) - pr_debug("%s: Ethernet address setting %s.\n", dev->name, - adapter->irx_pcb.data.failed ? "failed" : "succeeded"); - break; - - - /* - * received board statistics - */ - case CMD_NETWORK_STATISTICS_RESPONSE: - dev->stats.rx_packets += adapter->irx_pcb.data.netstat.tot_recv; - dev->stats.tx_packets += adapter->irx_pcb.data.netstat.tot_xmit; - dev->stats.rx_crc_errors += adapter->irx_pcb.data.netstat.err_CRC; - dev->stats.rx_frame_errors += adapter->irx_pcb.data.netstat.err_align; - dev->stats.rx_fifo_errors += adapter->irx_pcb.data.netstat.err_ovrrun; - dev->stats.rx_over_errors += adapter->irx_pcb.data.netstat.err_res; - adapter->got[CMD_NETWORK_STATISTICS] = 1; - if (elp_debug >= 3) - pr_debug("%s: interrupt - statistics response received\n", dev->name); - break; - - /* - * sent a packet - */ - case CMD_TRANSMIT_PACKET_COMPLETE: - if (elp_debug >= 3) - pr_debug("%s: interrupt - packet sent\n", dev->name); - if (!netif_running(dev)) - break; - switch (adapter->irx_pcb.data.xmit_resp.c_stat) { - case 0xffff: - dev->stats.tx_aborted_errors++; - pr_info("%s: transmit timed out, network cable problem?\n", dev->name); - break; - case 0xfffe: - dev->stats.tx_fifo_errors++; - pr_info("%s: transmit timed out, FIFO underrun\n", dev->name); - break; - } - netif_wake_queue(dev); - break; - - /* - * some unknown PCB - */ - default: - pr_debug("%s: unknown PCB received - %2.2x\n", - dev->name, adapter->irx_pcb.command); - break; - } - } else { - pr_warning("%s: failed to read PCB on interrupt\n", dev->name); - adapter_reset(dev); - } - } - - } while (icount++ < 5 && (inb_status(dev->base_addr) & (ACRF | DONE))); - - prime_rx(dev); - - /* - * indicate no longer in interrupt routine - */ - spin_unlock(&adapter->lock); - return IRQ_HANDLED; -} - - -/****************************************************** - * - * open the board - * - ******************************************************/ - -static int elp_open(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - int retval; - - if (elp_debug >= 3) - pr_debug("%s: request to open device\n", dev->name); - - /* - * make sure we actually found the device - */ - if (adapter == NULL) { - pr_err("%s: Opening a non-existent physical device\n", dev->name); - return -EAGAIN; - } - /* - * disable interrupts on the board - */ - outb_control(0, dev); - - /* - * clear any pending interrupts - */ - inb_command(dev->base_addr); - adapter_reset(dev); - - /* - * no receive PCBs active - */ - adapter->rx_active = 0; - - adapter->busy = 0; - adapter->send_pcb_semaphore = 0; - adapter->rx_backlog.in = 0; - adapter->rx_backlog.out = 0; - - spin_lock_init(&adapter->lock); - - /* - * install our interrupt service routine - */ - if ((retval = request_irq(dev->irq, elp_interrupt, 0, dev->name, dev))) { - pr_err("%s: could not allocate IRQ%d\n", dev->name, dev->irq); - return retval; - } - if ((retval = request_dma(dev->dma, dev->name))) { - free_irq(dev->irq, dev); - pr_err("%s: could not allocate DMA%d channel\n", dev->name, dev->dma); - return retval; - } - adapter->dma_buffer = (void *) dma_mem_alloc(DMA_BUFFER_SIZE); - if (!adapter->dma_buffer) { - pr_err("%s: could not allocate DMA buffer\n", dev->name); - free_dma(dev->dma); - free_irq(dev->irq, dev); - return -ENOMEM; - } - adapter->dmaing = 0; - - /* - * enable interrupts on the board - */ - outb_control(CMDE, dev); - - /* - * configure adapter memory: we need 10 multicast addresses, default==0 - */ - if (elp_debug >= 3) - pr_debug("%s: sending 3c505 memory configuration command\n", dev->name); - adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY; - adapter->tx_pcb.data.memconf.cmd_q = 10; - adapter->tx_pcb.data.memconf.rcv_q = 20; - adapter->tx_pcb.data.memconf.mcast = 10; - adapter->tx_pcb.data.memconf.frame = 20; - adapter->tx_pcb.data.memconf.rcv_b = 20; - adapter->tx_pcb.data.memconf.progs = 0; - adapter->tx_pcb.length = sizeof(struct Memconf); - adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] = 0; - if (!send_pcb(dev, &adapter->tx_pcb)) - pr_err("%s: couldn't send memory configuration command\n", dev->name); - else { - unsigned long timeout = jiffies + TIMEOUT; - while (adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) - TIMEOUT_MSG(__LINE__); - } - - - /* - * configure adapter to receive broadcast messages and wait for response - */ - if (elp_debug >= 3) - pr_debug("%s: sending 82586 configure command\n", dev->name); - adapter->tx_pcb.command = CMD_CONFIGURE_82586; - adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD; - adapter->tx_pcb.length = 2; - adapter->got[CMD_CONFIGURE_82586] = 0; - if (!send_pcb(dev, &adapter->tx_pcb)) - pr_err("%s: couldn't send 82586 configure command\n", dev->name); - else { - unsigned long timeout = jiffies + TIMEOUT; - while (adapter->got[CMD_CONFIGURE_82586] == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) - TIMEOUT_MSG(__LINE__); - } - - /* enable burst-mode DMA */ - /* outb(0x1, dev->base_addr + PORT_AUXDMA); */ - - /* - * queue receive commands to provide buffering - */ - prime_rx(dev); - if (elp_debug >= 3) - pr_debug("%s: %d receive PCBs active\n", dev->name, adapter->rx_active); - - /* - * device is now officially open! - */ - - netif_start_queue(dev); - return 0; -} - - -/****************************************************** - * - * send a packet to the adapter - * - ******************************************************/ - -static netdev_tx_t send_packet(struct net_device *dev, struct sk_buff *skb) -{ - elp_device *adapter = netdev_priv(dev); - unsigned long target; - unsigned long flags; - - /* - * make sure the length is even and no shorter than 60 bytes - */ - unsigned int nlen = (((skb->len < 60) ? 60 : skb->len) + 1) & (~1); - - if (test_and_set_bit(0, (void *) &adapter->busy)) { - if (elp_debug >= 2) - pr_debug("%s: transmit blocked\n", dev->name); - return false; - } - - dev->stats.tx_bytes += nlen; - - /* - * send the adapter a transmit packet command. Ignore segment and offset - * and make sure the length is even - */ - adapter->tx_pcb.command = CMD_TRANSMIT_PACKET; - adapter->tx_pcb.length = sizeof(struct Xmit_pkt); - adapter->tx_pcb.data.xmit_pkt.buf_ofs - = adapter->tx_pcb.data.xmit_pkt.buf_seg = 0; /* Unused */ - adapter->tx_pcb.data.xmit_pkt.pkt_len = nlen; - - if (!send_pcb(dev, &adapter->tx_pcb)) { - adapter->busy = 0; - return false; - } - /* if this happens, we die */ - if (test_and_set_bit(0, (void *) &adapter->dmaing)) - pr_debug("%s: tx: DMA %d in progress\n", dev->name, adapter->current_dma.direction); - - adapter->current_dma.direction = 1; - adapter->current_dma.start_time = jiffies; - - if ((unsigned long)(skb->data + nlen) >= MAX_DMA_ADDRESS || nlen != skb->len) { - skb_copy_from_linear_data(skb, adapter->dma_buffer, nlen); - memset(adapter->dma_buffer+skb->len, 0, nlen-skb->len); - target = isa_virt_to_bus(adapter->dma_buffer); - } - else { - target = isa_virt_to_bus(skb->data); - } - adapter->current_dma.skb = skb; - - flags=claim_dma_lock(); - disable_dma(dev->dma); - clear_dma_ff(dev->dma); - set_dma_mode(dev->dma, 0x48); /* dma memory -> io */ - set_dma_addr(dev->dma, target); - set_dma_count(dev->dma, nlen); - outb_control(adapter->hcr_val | DMAE | TCEN, dev); - enable_dma(dev->dma); - release_dma_lock(flags); - - if (elp_debug >= 3) - pr_debug("%s: DMA transfer started\n", dev->name); - - return true; -} - -/* - * The upper layer thinks we timed out - */ - -static void elp_timeout(struct net_device *dev) -{ - int stat; - - stat = inb_status(dev->base_addr); - pr_warning("%s: transmit timed out, lost %s?\n", dev->name, - (stat & ACRF) ? "interrupt" : "command"); - if (elp_debug >= 1) - pr_debug("%s: status %#02x\n", dev->name, stat); - dev->trans_start = jiffies; /* prevent tx timeout */ - dev->stats.tx_dropped++; - netif_wake_queue(dev); -} - -/****************************************************** - * - * start the transmitter - * return 0 if sent OK, else return 1 - * - ******************************************************/ - -static netdev_tx_t elp_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - unsigned long flags; - elp_device *adapter = netdev_priv(dev); - - spin_lock_irqsave(&adapter->lock, flags); - check_3c505_dma(dev); - - if (elp_debug >= 3) - pr_debug("%s: request to send packet of length %d\n", dev->name, (int) skb->len); - - netif_stop_queue(dev); - - /* - * send the packet at skb->data for skb->len - */ - if (!send_packet(dev, skb)) { - if (elp_debug >= 2) { - pr_debug("%s: failed to transmit packet\n", dev->name); - } - spin_unlock_irqrestore(&adapter->lock, flags); - return NETDEV_TX_BUSY; - } - if (elp_debug >= 3) - pr_debug("%s: packet of length %d sent\n", dev->name, (int) skb->len); - - prime_rx(dev); - spin_unlock_irqrestore(&adapter->lock, flags); - netif_start_queue(dev); - return NETDEV_TX_OK; -} - -/****************************************************** - * - * return statistics on the board - * - ******************************************************/ - -static struct net_device_stats *elp_get_stats(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - - if (elp_debug >= 3) - pr_debug("%s: request for stats\n", dev->name); - - /* If the device is closed, just return the latest stats we have, - - we cannot ask from the adapter without interrupts */ - if (!netif_running(dev)) - return &dev->stats; - - /* send a get statistics command to the board */ - adapter->tx_pcb.command = CMD_NETWORK_STATISTICS; - adapter->tx_pcb.length = 0; - adapter->got[CMD_NETWORK_STATISTICS] = 0; - if (!send_pcb(dev, &adapter->tx_pcb)) - pr_err("%s: couldn't send get statistics command\n", dev->name); - else { - unsigned long timeout = jiffies + TIMEOUT; - while (adapter->got[CMD_NETWORK_STATISTICS] == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) { - TIMEOUT_MSG(__LINE__); - return &dev->stats; - } - } - - /* statistics are now up to date */ - return &dev->stats; -} - - -static void netdev_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - sprintf(info->bus_info, "ISA 0x%lx", dev->base_addr); -} - -static u32 netdev_get_msglevel(struct net_device *dev) -{ - return debug; -} - -static void netdev_set_msglevel(struct net_device *dev, u32 level) -{ - debug = level; -} - -static const struct ethtool_ops netdev_ethtool_ops = { - .get_drvinfo = netdev_get_drvinfo, - .get_msglevel = netdev_get_msglevel, - .set_msglevel = netdev_set_msglevel, -}; - -/****************************************************** - * - * close the board - * - ******************************************************/ - -static int elp_close(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - - if (elp_debug >= 3) - pr_debug("%s: request to close device\n", dev->name); - - netif_stop_queue(dev); - - /* Someone may request the device statistic information even when - * the interface is closed. The following will update the statistics - * structure in the driver, so we'll be able to give current statistics. - */ - (void) elp_get_stats(dev); - - /* - * disable interrupts on the board - */ - outb_control(0, dev); - - /* - * release the IRQ - */ - free_irq(dev->irq, dev); - - free_dma(dev->dma); - free_pages((unsigned long) adapter->dma_buffer, get_order(DMA_BUFFER_SIZE)); - - return 0; -} - - -/************************************************************ - * - * Set multicast list - * num_addrs==0: clear mc_list - * num_addrs==-1: set promiscuous mode - * num_addrs>0: set mc_list - * - ************************************************************/ - -static void elp_set_mc_list(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - struct netdev_hw_addr *ha; - int i; - unsigned long flags; - - if (elp_debug >= 3) - pr_debug("%s: request to set multicast list\n", dev->name); - - spin_lock_irqsave(&adapter->lock, flags); - - if (!(dev->flags & (IFF_PROMISC | IFF_ALLMULTI))) { - /* send a "load multicast list" command to the board, max 10 addrs/cmd */ - /* if num_addrs==0 the list will be cleared */ - adapter->tx_pcb.command = CMD_LOAD_MULTICAST_LIST; - adapter->tx_pcb.length = 6 * netdev_mc_count(dev); - i = 0; - netdev_for_each_mc_addr(ha, dev) - memcpy(adapter->tx_pcb.data.multicast[i++], - ha->addr, 6); - adapter->got[CMD_LOAD_MULTICAST_LIST] = 0; - if (!send_pcb(dev, &adapter->tx_pcb)) - pr_err("%s: couldn't send set_multicast command\n", dev->name); - else { - unsigned long timeout = jiffies + TIMEOUT; - while (adapter->got[CMD_LOAD_MULTICAST_LIST] == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) { - TIMEOUT_MSG(__LINE__); - } - } - if (!netdev_mc_empty(dev)) - adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD | RECV_MULTI; - else /* num_addrs == 0 */ - adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD; - } else - adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_PROMISC; - /* - * configure adapter to receive messages (as specified above) - * and wait for response - */ - if (elp_debug >= 3) - pr_debug("%s: sending 82586 configure command\n", dev->name); - adapter->tx_pcb.command = CMD_CONFIGURE_82586; - adapter->tx_pcb.length = 2; - adapter->got[CMD_CONFIGURE_82586] = 0; - if (!send_pcb(dev, &adapter->tx_pcb)) - { - spin_unlock_irqrestore(&adapter->lock, flags); - pr_err("%s: couldn't send 82586 configure command\n", dev->name); - } - else { - unsigned long timeout = jiffies + TIMEOUT; - spin_unlock_irqrestore(&adapter->lock, flags); - while (adapter->got[CMD_CONFIGURE_82586] == 0 && time_before(jiffies, timeout)); - if (time_after_eq(jiffies, timeout)) - TIMEOUT_MSG(__LINE__); - } -} - -/************************************************************ - * - * A couple of tests to see if there's 3C505 or not - * Called only by elp_autodetect - ************************************************************/ - -static int __init elp_sense(struct net_device *dev) -{ - int addr = dev->base_addr; - const char *name = dev->name; - byte orig_HSR; - - if (!request_region(addr, ELP_IO_EXTENT, "3c505")) - return -ENODEV; - - orig_HSR = inb_status(addr); - - if (elp_debug > 0) - pr_debug(search_msg, name, addr); - - if (orig_HSR == 0xff) { - if (elp_debug > 0) - pr_cont(notfound_msg, 1); - goto out; - } - - /* Wait for a while; the adapter may still be booting up */ - if (elp_debug > 0) - pr_cont(stilllooking_msg); - - if (orig_HSR & DIR) { - /* If HCR.DIR is up, we pull it down. HSR.DIR should follow. */ - outb(0, dev->base_addr + PORT_CONTROL); - msleep(300); - if (inb_status(addr) & DIR) { - if (elp_debug > 0) - pr_cont(notfound_msg, 2); - goto out; - } - } else { - /* If HCR.DIR is down, we pull it up. HSR.DIR should follow. */ - outb(DIR, dev->base_addr + PORT_CONTROL); - msleep(300); - if (!(inb_status(addr) & DIR)) { - if (elp_debug > 0) - pr_cont(notfound_msg, 3); - goto out; - } - } - /* - * It certainly looks like a 3c505. - */ - if (elp_debug > 0) - pr_cont(found_msg); - - return 0; -out: - release_region(addr, ELP_IO_EXTENT); - return -ENODEV; -} - -/************************************************************* - * - * Search through addr_list[] and try to find a 3C505 - * Called only by eplus_probe - *************************************************************/ - -static int __init elp_autodetect(struct net_device *dev) -{ - int idx = 0; - - /* if base address set, then only check that address - otherwise, run through the table */ - if (dev->base_addr != 0) { /* dev->base_addr == 0 ==> plain autodetect */ - if (elp_sense(dev) == 0) - return dev->base_addr; - } else - while ((dev->base_addr = addr_list[idx++])) { - if (elp_sense(dev) == 0) - return dev->base_addr; - } - - /* could not find an adapter */ - if (elp_debug > 0) - pr_debug(couldnot_msg, dev->name); - - return 0; /* Because of this, the layer above will return -ENODEV */ -} - -static const struct net_device_ops elp_netdev_ops = { - .ndo_open = elp_open, - .ndo_stop = elp_close, - .ndo_get_stats = elp_get_stats, - .ndo_start_xmit = elp_start_xmit, - .ndo_tx_timeout = elp_timeout, - .ndo_set_rx_mode = elp_set_mc_list, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -/****************************************************** - * - * probe for an Etherlink Plus board at the specified address - * - ******************************************************/ - -/* There are three situations we need to be able to detect here: - - * a) the card is idle - * b) the card is still booting up - * c) the card is stuck in a strange state (some DOS drivers do this) - * - * In case (a), all is well. In case (b), we wait 10 seconds to see if the - * card finishes booting, and carry on if so. In case (c), we do a hard reset, - * loop round, and hope for the best. - * - * This is all very unpleasant, but hopefully avoids the problems with the old - * probe code (which had a 15-second delay if the card was idle, and didn't - * work at all if it was in a weird state). - */ - -static int __init elplus_setup(struct net_device *dev) -{ - elp_device *adapter = netdev_priv(dev); - int i, tries, tries1, okay; - unsigned long timeout; - unsigned long cookie = 0; - int err = -ENODEV; - - /* - * setup adapter structure - */ - - dev->base_addr = elp_autodetect(dev); - if (!dev->base_addr) - return -ENODEV; - - adapter->send_pcb_semaphore = 0; - - for (tries1 = 0; tries1 < 3; tries1++) { - outb_control((adapter->hcr_val | CMDE) & ~DIR, dev); - /* First try to write just one byte, to see if the card is - * responding at all normally. - */ - timeout = jiffies + 5*HZ/100; - okay = 0; - while (time_before(jiffies, timeout) && !(inb_status(dev->base_addr) & HCRE)); - if ((inb_status(dev->base_addr) & HCRE)) { - outb_command(0, dev->base_addr); /* send a spurious byte */ - timeout = jiffies + 5*HZ/100; - while (time_before(jiffies, timeout) && !(inb_status(dev->base_addr) & HCRE)); - if (inb_status(dev->base_addr) & HCRE) - okay = 1; - } - if (!okay) { - /* Nope, it's ignoring the command register. This means that - * either it's still booting up, or it's died. - */ - pr_err("%s: command register wouldn't drain, ", dev->name); - if ((inb_status(dev->base_addr) & 7) == 3) { - /* If the adapter status is 3, it *could* still be booting. - * Give it the benefit of the doubt for 10 seconds. - */ - pr_cont("assuming 3c505 still starting\n"); - timeout = jiffies + 10*HZ; - while (time_before(jiffies, timeout) && (inb_status(dev->base_addr) & 7)); - if (inb_status(dev->base_addr) & 7) { - pr_err("%s: 3c505 failed to start\n", dev->name); - } else { - okay = 1; /* It started */ - } - } else { - /* Otherwise, it must just be in a strange - * state. We probably need to kick it. - */ - pr_cont("3c505 is sulking\n"); - } - } - for (tries = 0; tries < 5 && okay; tries++) { - - /* - * Try to set the Ethernet address, to make sure that the board - * is working. - */ - adapter->tx_pcb.command = CMD_STATION_ADDRESS; - adapter->tx_pcb.length = 0; - cookie = probe_irq_on(); - if (!send_pcb(dev, &adapter->tx_pcb)) { - pr_err("%s: could not send first PCB\n", dev->name); - probe_irq_off(cookie); - continue; - } - if (!receive_pcb(dev, &adapter->rx_pcb)) { - pr_err("%s: could not read first PCB\n", dev->name); - probe_irq_off(cookie); - continue; - } - if ((adapter->rx_pcb.command != CMD_ADDRESS_RESPONSE) || - (adapter->rx_pcb.length != 6)) { - pr_err("%s: first PCB wrong (%d, %d)\n", dev->name, - adapter->rx_pcb.command, adapter->rx_pcb.length); - probe_irq_off(cookie); - continue; - } - goto okay; - } - /* It's broken. Do a hard reset to re-initialise the board, - * and try again. - */ - pr_info("%s: resetting adapter\n", dev->name); - outb_control(adapter->hcr_val | FLSH | ATTN, dev); - outb_control(adapter->hcr_val & ~(FLSH | ATTN), dev); - } - pr_err("%s: failed to initialise 3c505\n", dev->name); - goto out; - - okay: - if (dev->irq) { /* Is there a preset IRQ? */ - int rpt = probe_irq_off(cookie); - if (dev->irq != rpt) { - pr_warning("%s: warning, irq %d configured but %d detected\n", dev->name, dev->irq, rpt); - } - /* if dev->irq == probe_irq_off(cookie), all is well */ - } else /* No preset IRQ; just use what we can detect */ - dev->irq = probe_irq_off(cookie); - switch (dev->irq) { /* Legal, sane? */ - case 0: - pr_err("%s: IRQ probe failed: check 3c505 jumpers.\n", - dev->name); - goto out; - case 1: - case 6: - case 8: - case 13: - pr_err("%s: Impossible IRQ %d reported by probe_irq_off().\n", - dev->name, dev->irq); - goto out; - } - /* - * Now we have the IRQ number so we can disable the interrupts from - * the board until the board is opened. - */ - outb_control(adapter->hcr_val & ~CMDE, dev); - - /* - * copy Ethernet address into structure - */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = adapter->rx_pcb.data.eth_addr[i]; - - /* find a DMA channel */ - if (!dev->dma) { - if (dev->mem_start) { - dev->dma = dev->mem_start & 7; - } - else { - pr_warning("%s: warning, DMA channel not specified, using default\n", dev->name); - dev->dma = ELP_DMA; - } - } - - /* - * print remainder of startup message - */ - pr_info("%s: 3c505 at %#lx, irq %d, dma %d, addr %pM, ", - dev->name, dev->base_addr, dev->irq, dev->dma, dev->dev_addr); - /* - * read more information from the adapter - */ - - adapter->tx_pcb.command = CMD_ADAPTER_INFO; - adapter->tx_pcb.length = 0; - if (!send_pcb(dev, &adapter->tx_pcb) || - !receive_pcb(dev, &adapter->rx_pcb) || - (adapter->rx_pcb.command != CMD_ADAPTER_INFO_RESPONSE) || - (adapter->rx_pcb.length != 10)) { - pr_cont("not responding to second PCB\n"); - } - pr_cont("rev %d.%d, %dk\n", adapter->rx_pcb.data.info.major_vers, - adapter->rx_pcb.data.info.minor_vers, adapter->rx_pcb.data.info.RAM_sz); - - /* - * reconfigure the adapter memory to better suit our purposes - */ - adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY; - adapter->tx_pcb.length = 12; - adapter->tx_pcb.data.memconf.cmd_q = 8; - adapter->tx_pcb.data.memconf.rcv_q = 8; - adapter->tx_pcb.data.memconf.mcast = 10; - adapter->tx_pcb.data.memconf.frame = 10; - adapter->tx_pcb.data.memconf.rcv_b = 10; - adapter->tx_pcb.data.memconf.progs = 0; - if (!send_pcb(dev, &adapter->tx_pcb) || - !receive_pcb(dev, &adapter->rx_pcb) || - (adapter->rx_pcb.command != CMD_CONFIGURE_ADAPTER_RESPONSE) || - (adapter->rx_pcb.length != 2)) { - pr_err("%s: could not configure adapter memory\n", dev->name); - } - if (adapter->rx_pcb.data.configure) { - pr_err("%s: adapter configuration failed\n", dev->name); - } - - dev->netdev_ops = &elp_netdev_ops; - dev->watchdog_timeo = 10*HZ; - dev->ethtool_ops = &netdev_ethtool_ops; /* local */ - - dev->mem_start = dev->mem_end = 0; - - err = register_netdev(dev); - if (err) - goto out; - - return 0; -out: - release_region(dev->base_addr, ELP_IO_EXTENT); - return err; -} - -#ifndef MODULE -struct net_device * __init elplus_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(elp_device)); - int err; - if (!dev) - return ERR_PTR(-ENOMEM); - - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - - err = elplus_setup(dev); - if (err) { - free_netdev(dev); - return ERR_PTR(err); - } - return dev; -} - -#else -static struct net_device *dev_3c505[ELP_MAX_CARDS]; -static int io[ELP_MAX_CARDS]; -static int irq[ELP_MAX_CARDS]; -static int dma[ELP_MAX_CARDS]; -module_param_array(io, int, NULL, 0); -module_param_array(irq, int, NULL, 0); -module_param_array(dma, int, NULL, 0); -MODULE_PARM_DESC(io, "EtherLink Plus I/O base address(es)"); -MODULE_PARM_DESC(irq, "EtherLink Plus IRQ number(s) (assigned)"); -MODULE_PARM_DESC(dma, "EtherLink Plus DMA channel(s)"); - -int __init init_module(void) -{ - int this_dev, found = 0; - - for (this_dev = 0; this_dev < ELP_MAX_CARDS; this_dev++) { - struct net_device *dev = alloc_etherdev(sizeof(elp_device)); - if (!dev) - break; - - dev->irq = irq[this_dev]; - dev->base_addr = io[this_dev]; - if (dma[this_dev]) { - dev->dma = dma[this_dev]; - } else { - dev->dma = ELP_DMA; - pr_warning("3c505.c: warning, using default DMA channel,\n"); - } - if (io[this_dev] == 0) { - if (this_dev) { - free_netdev(dev); - break; - } - pr_notice("3c505.c: module autoprobe not recommended, give io=xx.\n"); - } - if (elplus_setup(dev) != 0) { - pr_warning("3c505.c: Failed to register card at 0x%x.\n", io[this_dev]); - free_netdev(dev); - break; - } - dev_3c505[this_dev] = dev; - found++; - } - if (!found) - return -ENODEV; - return 0; -} - -void __exit cleanup_module(void) -{ - int this_dev; - - for (this_dev = 0; this_dev < ELP_MAX_CARDS; this_dev++) { - struct net_device *dev = dev_3c505[this_dev]; - if (dev) { - unregister_netdev(dev); - release_region(dev->base_addr, ELP_IO_EXTENT); - free_netdev(dev); - } - } -} - -#endif /* MODULE */ -MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/i825xx/3c505.h b/drivers/net/ethernet/i825xx/3c505.h deleted file mode 100644 index 04df2a9002b6..000000000000 --- a/drivers/net/ethernet/i825xx/3c505.h +++ /dev/null @@ -1,292 +0,0 @@ -/***************************************************************** - * - * defines for 3Com Etherlink Plus adapter - * - *****************************************************************/ - -#define ELP_DMA 6 -#define ELP_RX_PCBS 4 -#define ELP_MAX_CARDS 4 - -/* - * I/O register offsets - */ -#define PORT_COMMAND 0x00 /* read/write, 8-bit */ -#define PORT_STATUS 0x02 /* read only, 8-bit */ -#define PORT_AUXDMA 0x02 /* write only, 8-bit */ -#define PORT_DATA 0x04 /* read/write, 16-bit */ -#define PORT_CONTROL 0x06 /* read/write, 8-bit */ - -#define ELP_IO_EXTENT 0x10 /* size of used IO registers */ - -/* - * host control registers bits - */ -#define ATTN 0x80 /* attention */ -#define FLSH 0x40 /* flush data register */ -#define DMAE 0x20 /* DMA enable */ -#define DIR 0x10 /* direction */ -#define TCEN 0x08 /* terminal count interrupt enable */ -#define CMDE 0x04 /* command register interrupt enable */ -#define HSF2 0x02 /* host status flag 2 */ -#define HSF1 0x01 /* host status flag 1 */ - -/* - * combinations of HSF flags used for PCB transmission - */ -#define HSF_PCB_ACK HSF1 -#define HSF_PCB_NAK HSF2 -#define HSF_PCB_END (HSF2|HSF1) -#define HSF_PCB_MASK (HSF2|HSF1) - -/* - * host status register bits - */ -#define HRDY 0x80 /* data register ready */ -#define HCRE 0x40 /* command register empty */ -#define ACRF 0x20 /* adapter command register full */ -/* #define DIR 0x10 direction - same as in control register */ -#define DONE 0x08 /* DMA done */ -#define ASF3 0x04 /* adapter status flag 3 */ -#define ASF2 0x02 /* adapter status flag 2 */ -#define ASF1 0x01 /* adapter status flag 1 */ - -/* - * combinations of ASF flags used for PCB reception - */ -#define ASF_PCB_ACK ASF1 -#define ASF_PCB_NAK ASF2 -#define ASF_PCB_END (ASF2|ASF1) -#define ASF_PCB_MASK (ASF2|ASF1) - -/* - * host aux DMA register bits - */ -#define DMA_BRST 0x01 /* DMA burst */ - -/* - * maximum amount of data allowed in a PCB - */ -#define MAX_PCB_DATA 62 - -/***************************************************************** - * - * timeout value - * this is a rough value used for loops to stop them from - * locking up the whole machine in the case of failure or - * error conditions - * - *****************************************************************/ - -#define TIMEOUT 300 - -/***************************************************************** - * - * PCB commands - * - *****************************************************************/ - -enum { - /* - * host PCB commands - */ - CMD_CONFIGURE_ADAPTER_MEMORY = 0x01, - CMD_CONFIGURE_82586 = 0x02, - CMD_STATION_ADDRESS = 0x03, - CMD_DMA_DOWNLOAD = 0x04, - CMD_DMA_UPLOAD = 0x05, - CMD_PIO_DOWNLOAD = 0x06, - CMD_PIO_UPLOAD = 0x07, - CMD_RECEIVE_PACKET = 0x08, - CMD_TRANSMIT_PACKET = 0x09, - CMD_NETWORK_STATISTICS = 0x0a, - CMD_LOAD_MULTICAST_LIST = 0x0b, - CMD_CLEAR_PROGRAM = 0x0c, - CMD_DOWNLOAD_PROGRAM = 0x0d, - CMD_EXECUTE_PROGRAM = 0x0e, - CMD_SELF_TEST = 0x0f, - CMD_SET_STATION_ADDRESS = 0x10, - CMD_ADAPTER_INFO = 0x11, - NUM_TRANSMIT_CMDS, - - /* - * adapter PCB commands - */ - CMD_CONFIGURE_ADAPTER_RESPONSE = 0x31, - CMD_CONFIGURE_82586_RESPONSE = 0x32, - CMD_ADDRESS_RESPONSE = 0x33, - CMD_DOWNLOAD_DATA_REQUEST = 0x34, - CMD_UPLOAD_DATA_REQUEST = 0x35, - CMD_RECEIVE_PACKET_COMPLETE = 0x38, - CMD_TRANSMIT_PACKET_COMPLETE = 0x39, - CMD_NETWORK_STATISTICS_RESPONSE = 0x3a, - CMD_LOAD_MULTICAST_RESPONSE = 0x3b, - CMD_CLEAR_PROGRAM_RESPONSE = 0x3c, - CMD_DOWNLOAD_PROGRAM_RESPONSE = 0x3d, - CMD_EXECUTE_RESPONSE = 0x3e, - CMD_SELF_TEST_RESPONSE = 0x3f, - CMD_SET_ADDRESS_RESPONSE = 0x40, - CMD_ADAPTER_INFO_RESPONSE = 0x41 -}; - -/* Definitions for the PCB data structure */ - -/* Data units */ -typedef unsigned char byte; -typedef unsigned short int word; -typedef unsigned long int dword; - -/* Data structures */ -struct Memconf { - word cmd_q, - rcv_q, - mcast, - frame, - rcv_b, - progs; -}; - -struct Rcv_pkt { - word buf_ofs, - buf_seg, - buf_len, - timeout; -}; - -struct Xmit_pkt { - word buf_ofs, - buf_seg, - pkt_len; -}; - -struct Rcv_resp { - word buf_ofs, - buf_seg, - buf_len, - pkt_len, - timeout, - status; - dword timetag; -}; - -struct Xmit_resp { - word buf_ofs, - buf_seg, - c_stat, - status; -}; - - -struct Netstat { - dword tot_recv, - tot_xmit; - word err_CRC, - err_align, - err_res, - err_ovrrun; -}; - - -struct Selftest { - word error; - union { - word ROM_cksum; - struct { - word ofs, seg; - } RAM; - word i82586; - } failure; -}; - -struct Info { - byte minor_vers, - major_vers; - word ROM_cksum, - RAM_sz, - free_ofs, - free_seg; -}; - -struct Memdump { - word size, - off, - seg; -}; - -/* -Primary Command Block. The most important data structure. All communication -between the host and the adapter is done with these. (Except for the actual -Ethernet data, which has different packaging.) -*/ -typedef struct { - byte command; - byte length; - union { - struct Memconf memconf; - word configure; - struct Rcv_pkt rcv_pkt; - struct Xmit_pkt xmit_pkt; - byte multicast[10][6]; - byte eth_addr[6]; - byte failed; - struct Rcv_resp rcv_resp; - struct Xmit_resp xmit_resp; - struct Netstat netstat; - struct Selftest selftest; - struct Info info; - struct Memdump memdump; - byte raw[62]; - } data; -} pcb_struct; - -/* These defines for 'configure' */ -#define RECV_STATION 0x00 -#define RECV_BROAD 0x01 -#define RECV_MULTI 0x02 -#define RECV_PROMISC 0x04 -#define NO_LOOPBACK 0x00 -#define INT_LOOPBACK 0x08 -#define EXT_LOOPBACK 0x10 - -/***************************************************************** - * - * structure to hold context information for adapter - * - *****************************************************************/ - -#define DMA_BUFFER_SIZE 1600 -#define BACKLOG_SIZE 4 - -typedef struct { - volatile short got[NUM_TRANSMIT_CMDS]; /* flags for - command completion */ - pcb_struct tx_pcb; /* PCB for foreground sending */ - pcb_struct rx_pcb; /* PCB for foreground receiving */ - pcb_struct itx_pcb; /* PCB for background sending */ - pcb_struct irx_pcb; /* PCB for background receiving */ - - void *dma_buffer; - - struct { - unsigned int length[BACKLOG_SIZE]; - unsigned int in; - unsigned int out; - } rx_backlog; - - struct { - unsigned int direction; - unsigned int length; - struct sk_buff *skb; - void *target; - unsigned long start_time; - } current_dma; - - /* flags */ - unsigned long send_pcb_semaphore; - unsigned long dmaing; - unsigned long busy; - - unsigned int rx_active; /* number of receive PCBs */ - volatile unsigned char hcr_val; /* what we think the HCR contains */ - spinlock_t lock; /* Interrupt v tx lock */ -} elp_device; diff --git a/drivers/net/ethernet/i825xx/3c507.c b/drivers/net/ethernet/i825xx/3c507.c deleted file mode 100644 index e8984b059905..000000000000 --- a/drivers/net/ethernet/i825xx/3c507.c +++ /dev/null @@ -1,938 +0,0 @@ -/* 3c507.c: An EtherLink16 device driver for Linux. */ -/* - Written 1993,1994 by Donald Becker. - - Copyright 1993 United States Government as represented by the - Director, National Security Agency. - - This software may be used and distributed according to the terms - of the GNU General Public License, incorporated herein by reference. - - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation - 410 Severn Ave., Suite 210 - Annapolis MD 21403 - - - Thanks go to jennings@Montrouge.SMR.slb.com ( Patrick Jennings) - and jrs@world.std.com (Rick Sladkey) for testing and bugfixes. - Mark Salazar <leslie@access.digex.net> made the changes for cards with - only 16K packet buffers. - - Things remaining to do: - Verify that the tx and rx buffers don't have fencepost errors. - Move the theory of operation and memory map documentation. - The statistics need to be updated correctly. -*/ - -#define DRV_NAME "3c507" -#define DRV_VERSION "1.10a" -#define DRV_RELDATE "11/17/2001" - -static const char version[] = - DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " Donald Becker (becker@scyld.com)\n"; - -/* - Sources: - This driver wouldn't have been written with the availability of the - Crynwr driver source code. It provided a known-working implementation - that filled in the gaping holes of the Intel documentation. Three cheers - for Russ Nelson. - - Intel Microcommunications Databook, Vol. 1, 1990. It provides just enough - info that the casual reader might think that it documents the i82586 :-<. -*/ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/string.h> -#include <linux/spinlock.h> -#include <linux/ethtool.h> -#include <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/if_ether.h> -#include <linux/skbuff.h> -#include <linux/init.h> -#include <linux/bitops.h> - -#include <asm/dma.h> -#include <asm/io.h> -#include <asm/uaccess.h> - -/* use 0 for production, 1 for verification, 2..7 for debug */ -#ifndef NET_DEBUG -#define NET_DEBUG 1 -#endif -static unsigned int net_debug = NET_DEBUG; -#define debug net_debug - - -/* - Details of the i82586. - - You'll really need the databook to understand the details of this part, - but the outline is that the i82586 has two separate processing units. - Both are started from a list of three configuration tables, of which only - the last, the System Control Block (SCB), is used after reset-time. The SCB - has the following fields: - Status word - Command word - Tx/Command block addr. - Rx block addr. - The command word accepts the following controls for the Tx and Rx units: - */ - -#define CUC_START 0x0100 -#define CUC_RESUME 0x0200 -#define CUC_SUSPEND 0x0300 -#define RX_START 0x0010 -#define RX_RESUME 0x0020 -#define RX_SUSPEND 0x0030 - -/* The Rx unit uses a list of frame descriptors and a list of data buffer - descriptors. We use full-sized (1518 byte) data buffers, so there is - a one-to-one pairing of frame descriptors to buffer descriptors. - - The Tx ("command") unit executes a list of commands that look like: - Status word Written by the 82586 when the command is done. - Command word Command in lower 3 bits, post-command action in upper 3 - Link word The address of the next command. - Parameters (as needed). - - Some definitions related to the Command Word are: - */ -#define CMD_EOL 0x8000 /* The last command of the list, stop. */ -#define CMD_SUSP 0x4000 /* Suspend after doing cmd. */ -#define CMD_INTR 0x2000 /* Interrupt after doing cmd. */ - -enum commands { - CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3, - CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7}; - -/* Information that need to be kept for each board. */ -struct net_local { - int last_restart; - ushort rx_head; - ushort rx_tail; - ushort tx_head; - ushort tx_cmd_link; - ushort tx_reap; - ushort tx_pkts_in_ring; - spinlock_t lock; - void __iomem *base; -}; - -/* - Details of the EtherLink16 Implementation - The 3c507 is a generic shared-memory i82586 implementation. - The host can map 16K, 32K, 48K, or 64K of the 64K memory into - 0x0[CD][08]0000, or all 64K into 0xF[02468]0000. - */ - -/* Offsets from the base I/O address. */ -#define SA_DATA 0 /* Station address data, or 3Com signature. */ -#define MISC_CTRL 6 /* Switch the SA_DATA banks, and bus config bits. */ -#define RESET_IRQ 10 /* Reset the latched IRQ line. */ -#define SIGNAL_CA 11 /* Frob the 82586 Channel Attention line. */ -#define ROM_CONFIG 13 -#define MEM_CONFIG 14 -#define IRQ_CONFIG 15 -#define EL16_IO_EXTENT 16 - -/* The ID port is used at boot-time to locate the ethercard. */ -#define ID_PORT 0x100 - -/* Offsets to registers in the mailbox (SCB). */ -#define iSCB_STATUS 0x8 -#define iSCB_CMD 0xA -#define iSCB_CBL 0xC /* Command BLock offset. */ -#define iSCB_RFA 0xE /* Rx Frame Area offset. */ - -/* Since the 3c507 maps the shared memory window so that the last byte is - at 82586 address FFFF, the first byte is at 82586 address 0, 16K, 32K, or - 48K corresponding to window sizes of 64K, 48K, 32K and 16K respectively. - We can account for this be setting the 'SBC Base' entry in the ISCP table - below for all the 16 bit offset addresses, and also adding the 'SCB Base' - value to all 24 bit physical addresses (in the SCP table and the TX and RX - Buffer Descriptors). - -Mark - */ -#define SCB_BASE ((unsigned)64*1024 - (dev->mem_end - dev->mem_start)) - -/* - What follows in 'init_words[]' is the "program" that is downloaded to the - 82586 memory. It's mostly tables and command blocks, and starts at the - reset address 0xfffff6. This is designed to be similar to the EtherExpress, - thus the unusual location of the SCB at 0x0008. - - Even with the additional "don't care" values, doing it this way takes less - program space than initializing the individual tables, and I feel it's much - cleaner. - - The databook is particularly useless for the first two structures, I had - to use the Crynwr driver as an example. - - The memory setup is as follows: - */ - -#define CONFIG_CMD 0x0018 -#define SET_SA_CMD 0x0024 -#define SA_OFFSET 0x002A -#define IDLELOOP 0x30 -#define TDR_CMD 0x38 -#define TDR_TIME 0x3C -#define DUMP_CMD 0x40 -#define DIAG_CMD 0x48 -#define SET_MC_CMD 0x4E -#define DUMP_DATA 0x56 /* A 170 byte buffer for dump and Set-MC into. */ - -#define TX_BUF_START 0x0100 -#define NUM_TX_BUFS 5 -#define TX_BUF_SIZE (1518+14+20+16) /* packet+header+TBD */ - -#define RX_BUF_START 0x2000 -#define RX_BUF_SIZE (1518+14+18) /* packet+header+RBD */ -#define RX_BUF_END (dev->mem_end - dev->mem_start) - -#define TX_TIMEOUT (HZ/20) - -/* - That's it: only 86 bytes to set up the beast, including every extra - command available. The 170 byte buffer at DUMP_DATA is shared between the - Dump command (called only by the diagnostic program) and the SetMulticastList - command. - - To complete the memory setup you only have to write the station address at - SA_OFFSET and create the Tx & Rx buffer lists. - - The Tx command chain and buffer list is setup as follows: - A Tx command table, with the data buffer pointing to... - A Tx data buffer descriptor. The packet is in a single buffer, rather than - chaining together several smaller buffers. - A NoOp command, which initially points to itself, - And the packet data. - - A transmit is done by filling in the Tx command table and data buffer, - re-writing the NoOp command, and finally changing the offset of the last - command to point to the current Tx command. When the Tx command is finished, - it jumps to the NoOp, when it loops until the next Tx command changes the - "link offset" in the NoOp. This way the 82586 never has to go through the - slow restart sequence. - - The Rx buffer list is set up in the obvious ring structure. We have enough - memory (and low enough interrupt latency) that we can avoid the complicated - Rx buffer linked lists by alway associating a full-size Rx data buffer with - each Rx data frame. - - I current use four transmit buffers starting at TX_BUF_START (0x0100), and - use the rest of memory, from RX_BUF_START to RX_BUF_END, for Rx buffers. - - */ - -static unsigned short init_words[] = { - /* System Configuration Pointer (SCP). */ - 0x0000, /* Set bus size to 16 bits. */ - 0,0, /* pad words. */ - 0x0000,0x0000, /* ISCP phys addr, set in init_82586_mem(). */ - - /* Intermediate System Configuration Pointer (ISCP). */ - 0x0001, /* Status word that's cleared when init is done. */ - 0x0008,0,0, /* SCB offset, (skip, skip) */ - - /* System Control Block (SCB). */ - 0,0xf000|RX_START|CUC_START, /* SCB status and cmd. */ - CONFIG_CMD, /* Command list pointer, points to Configure. */ - RX_BUF_START, /* Rx block list. */ - 0,0,0,0, /* Error count: CRC, align, buffer, overrun. */ - - /* 0x0018: Configure command. Change to put MAC data with packet. */ - 0, CmdConfigure, /* Status, command. */ - SET_SA_CMD, /* Next command is Set Station Addr. */ - 0x0804, /* "4" bytes of config data, 8 byte FIFO. */ - 0x2e40, /* Magic values, including MAC data location. */ - 0, /* Unused pad word. */ - - /* 0x0024: Setup station address command. */ - 0, CmdSASetup, - SET_MC_CMD, /* Next command. */ - 0xaa00,0xb000,0x0bad, /* Station address (to be filled in) */ - - /* 0x0030: NOP, looping back to itself. Point to first Tx buffer to Tx. */ - 0, CmdNOp, IDLELOOP, 0 /* pad */, - - /* 0x0038: A unused Time-Domain Reflectometer command. */ - 0, CmdTDR, IDLELOOP, 0, - - /* 0x0040: An unused Dump State command. */ - 0, CmdDump, IDLELOOP, DUMP_DATA, - - /* 0x0048: An unused Diagnose command. */ - 0, CmdDiagnose, IDLELOOP, - - /* 0x004E: An empty set-multicast-list command. */ - 0, CmdMulticastList, IDLELOOP, 0, -}; - -/* Index to functions, as function prototypes. */ - -static int el16_probe1(struct net_device *dev, int ioaddr); -static int el16_open(struct net_device *dev); -static netdev_tx_t el16_send_packet(struct sk_buff *skb, - struct net_device *dev); -static irqreturn_t el16_interrupt(int irq, void *dev_id); -static void el16_rx(struct net_device *dev); -static int el16_close(struct net_device *dev); -static void el16_tx_timeout (struct net_device *dev); - -static void hardware_send_packet(struct net_device *dev, void *buf, short length, short pad); -static void init_82586_mem(struct net_device *dev); -static const struct ethtool_ops netdev_ethtool_ops; -static void init_rx_bufs(struct net_device *); - -static int io = 0x300; -static int irq; -static int mem_start; - - -/* Check for a network adaptor of this type, and return '0' iff one exists. - If dev->base_addr == 0, probe all likely locations. - If dev->base_addr == 1, always return failure. - If dev->base_addr == 2, (detachable devices only) allocate space for the - device and return success. - */ - -struct net_device * __init el16_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); - static const unsigned ports[] = { 0x300, 0x320, 0x340, 0x280, 0}; - const unsigned *port; - int err = -ENODEV; - - if (!dev) - return ERR_PTR(-ENODEV); - - if (unit >= 0) { - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - io = dev->base_addr; - irq = dev->irq; - mem_start = dev->mem_start & 15; - } - - if (io > 0x1ff) /* Check a single specified location. */ - err = el16_probe1(dev, io); - else if (io != 0) - err = -ENXIO; /* Don't probe at all. */ - else { - for (port = ports; *port; port++) { - err = el16_probe1(dev, *port); - if (!err) - break; - } - } - - if (err) - goto out; - err = register_netdev(dev); - if (err) - goto out1; - return dev; -out1: - free_irq(dev->irq, dev); - iounmap(((struct net_local *)netdev_priv(dev))->base); - release_region(dev->base_addr, EL16_IO_EXTENT); -out: - free_netdev(dev); - return ERR_PTR(err); -} - -static const struct net_device_ops netdev_ops = { - .ndo_open = el16_open, - .ndo_stop = el16_close, - .ndo_start_xmit = el16_send_packet, - .ndo_tx_timeout = el16_tx_timeout, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -static int __init el16_probe1(struct net_device *dev, int ioaddr) -{ - static unsigned char init_ID_done; - int i, irq, irqval, retval; - struct net_local *lp; - - if (init_ID_done == 0) { - ushort lrs_state = 0xff; - /* Send the ID sequence to the ID_PORT to enable the board(s). */ - outb(0x00, ID_PORT); - for(i = 0; i < 255; i++) { - outb(lrs_state, ID_PORT); - lrs_state <<= 1; - if (lrs_state & 0x100) - lrs_state ^= 0xe7; - } - outb(0x00, ID_PORT); - init_ID_done = 1; - } - - if (!request_region(ioaddr, EL16_IO_EXTENT, DRV_NAME)) - return -ENODEV; - - if ((inb(ioaddr) != '*') || (inb(ioaddr + 1) != '3') || - (inb(ioaddr + 2) != 'C') || (inb(ioaddr + 3) != 'O')) { - retval = -ENODEV; - goto out; - } - - pr_info("%s: 3c507 at %#x,", dev->name, ioaddr); - - /* We should make a few more checks here, like the first three octets of - the S.A. for the manufacturer's code. */ - - irq = inb(ioaddr + IRQ_CONFIG) & 0x0f; - - irqval = request_irq(irq, el16_interrupt, 0, DRV_NAME, dev); - if (irqval) { - pr_cont("\n"); - pr_err("3c507: unable to get IRQ %d (irqval=%d).\n", irq, irqval); - retval = -EAGAIN; - goto out; - } - - /* We've committed to using the board, and can start filling in *dev. */ - dev->base_addr = ioaddr; - - outb(0x01, ioaddr + MISC_CTRL); - for (i = 0; i < 6; i++) - dev->dev_addr[i] = inb(ioaddr + i); - pr_cont(" %pM", dev->dev_addr); - - if (mem_start) - net_debug = mem_start & 7; - -#ifdef MEM_BASE - dev->mem_start = MEM_BASE; - dev->mem_end = dev->mem_start + 0x10000; -#else - { - int base; - int size; - char mem_config = inb(ioaddr + MEM_CONFIG); - if (mem_config & 0x20) { - size = 64*1024; - base = 0xf00000 + (mem_config & 0x08 ? 0x080000 - : ((mem_config & 3) << 17)); - } else { - size = ((mem_config & 3) + 1) << 14; - base = 0x0c0000 + ( (mem_config & 0x18) << 12); - } - dev->mem_start = base; - dev->mem_end = base + size; - } -#endif - - dev->if_port = (inb(ioaddr + ROM_CONFIG) & 0x80) ? 1 : 0; - dev->irq = inb(ioaddr + IRQ_CONFIG) & 0x0f; - - pr_cont(", IRQ %d, %sternal xcvr, memory %#lx-%#lx.\n", dev->irq, - dev->if_port ? "ex" : "in", dev->mem_start, dev->mem_end-1); - - if (net_debug) - pr_debug("%s", version); - - lp = netdev_priv(dev); - spin_lock_init(&lp->lock); - lp->base = ioremap(dev->mem_start, RX_BUF_END); - if (!lp->base) { - pr_err("3c507: unable to remap memory\n"); - retval = -EAGAIN; - goto out1; - } - - dev->netdev_ops = &netdev_ops; - dev->watchdog_timeo = TX_TIMEOUT; - dev->ethtool_ops = &netdev_ethtool_ops; - dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */ - return 0; -out1: - free_irq(dev->irq, dev); -out: - release_region(ioaddr, EL16_IO_EXTENT); - return retval; -} - -static int el16_open(struct net_device *dev) -{ - /* Initialize the 82586 memory and start it. */ - init_82586_mem(dev); - - netif_start_queue(dev); - return 0; -} - - -static void el16_tx_timeout (struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - void __iomem *shmem = lp->base; - - if (net_debug > 1) - pr_debug("%s: transmit timed out, %s? ", dev->name, - readw(shmem + iSCB_STATUS) & 0x8000 ? "IRQ conflict" : - "network cable problem"); - /* Try to restart the adaptor. */ - if (lp->last_restart == dev->stats.tx_packets) { - if (net_debug > 1) - pr_cont("Resetting board.\n"); - /* Completely reset the adaptor. */ - init_82586_mem (dev); - lp->tx_pkts_in_ring = 0; - } else { - /* Issue the channel attention signal and hope it "gets better". */ - if (net_debug > 1) - pr_cont("Kicking board.\n"); - writew(0xf000 | CUC_START | RX_START, shmem + iSCB_CMD); - outb (0, ioaddr + SIGNAL_CA); /* Issue channel-attn. */ - lp->last_restart = dev->stats.tx_packets; - } - dev->trans_start = jiffies; /* prevent tx timeout */ - netif_wake_queue (dev); -} - - -static netdev_tx_t el16_send_packet (struct sk_buff *skb, - struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - unsigned long flags; - short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; - unsigned char *buf = skb->data; - - netif_stop_queue (dev); - - spin_lock_irqsave (&lp->lock, flags); - - dev->stats.tx_bytes += length; - /* Disable the 82586's input to the interrupt line. */ - outb (0x80, ioaddr + MISC_CTRL); - - hardware_send_packet (dev, buf, skb->len, length - skb->len); - - /* Enable the 82586 interrupt input. */ - outb (0x84, ioaddr + MISC_CTRL); - - spin_unlock_irqrestore (&lp->lock, flags); - - dev_kfree_skb (skb); - - /* You might need to clean up and record Tx statistics here. */ - - return NETDEV_TX_OK; -} - -/* The typical workload of the driver: - Handle the network interface interrupts. */ -static irqreturn_t el16_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct net_local *lp; - int ioaddr, status, boguscount = 0; - ushort ack_cmd = 0; - void __iomem *shmem; - - if (dev == NULL) { - pr_err("net_interrupt(): irq %d for unknown device.\n", irq); - return IRQ_NONE; - } - - ioaddr = dev->base_addr; - lp = netdev_priv(dev); - shmem = lp->base; - - spin_lock(&lp->lock); - - status = readw(shmem+iSCB_STATUS); - - if (net_debug > 4) { - pr_debug("%s: 3c507 interrupt, status %4.4x.\n", dev->name, status); - } - - /* Disable the 82586's input to the interrupt line. */ - outb(0x80, ioaddr + MISC_CTRL); - - /* Reap the Tx packet buffers. */ - while (lp->tx_pkts_in_ring) { - unsigned short tx_status = readw(shmem+lp->tx_reap); - if (!(tx_status & 0x8000)) { - if (net_debug > 5) - pr_debug("Tx command incomplete (%#x).\n", lp->tx_reap); - break; - } - /* Tx unsuccessful or some interesting status bit set. */ - if (!(tx_status & 0x2000) || (tx_status & 0x0f3f)) { - dev->stats.tx_errors++; - if (tx_status & 0x0600) dev->stats.tx_carrier_errors++; - if (tx_status & 0x0100) dev->stats.tx_fifo_errors++; - if (!(tx_status & 0x0040)) dev->stats.tx_heartbeat_errors++; - if (tx_status & 0x0020) dev->stats.tx_aborted_errors++; - dev->stats.collisions += tx_status & 0xf; - } - dev->stats.tx_packets++; - if (net_debug > 5) - pr_debug("Reaped %x, Tx status %04x.\n" , lp->tx_reap, tx_status); - lp->tx_reap += TX_BUF_SIZE; - if (lp->tx_reap > RX_BUF_START - TX_BUF_SIZE) - lp->tx_reap = TX_BUF_START; - - lp->tx_pkts_in_ring--; - /* There is always more space in the Tx ring buffer now. */ - netif_wake_queue(dev); - - if (++boguscount > 10) - break; - } - - if (status & 0x4000) { /* Packet received. */ - if (net_debug > 5) - pr_debug("Received packet, rx_head %04x.\n", lp->rx_head); - el16_rx(dev); - } - - /* Acknowledge the interrupt sources. */ - ack_cmd = status & 0xf000; - - if ((status & 0x0700) != 0x0200 && netif_running(dev)) { - if (net_debug) - pr_debug("%s: Command unit stopped, status %04x, restarting.\n", - dev->name, status); - /* If this ever occurs we should really re-write the idle loop, reset - the Tx list, and do a complete restart of the command unit. - For now we rely on the Tx timeout if the resume doesn't work. */ - ack_cmd |= CUC_RESUME; - } - - if ((status & 0x0070) != 0x0040 && netif_running(dev)) { - /* The Rx unit is not ready, it must be hung. Restart the receiver by - initializing the rx buffers, and issuing an Rx start command. */ - if (net_debug) - pr_debug("%s: Rx unit stopped, status %04x, restarting.\n", - dev->name, status); - init_rx_bufs(dev); - writew(RX_BUF_START,shmem+iSCB_RFA); - ack_cmd |= RX_START; - } - - writew(ack_cmd,shmem+iSCB_CMD); - outb(0, ioaddr + SIGNAL_CA); /* Issue channel-attn. */ - - /* Clear the latched interrupt. */ - outb(0, ioaddr + RESET_IRQ); - - /* Enable the 82586's interrupt input. */ - outb(0x84, ioaddr + MISC_CTRL); - spin_unlock(&lp->lock); - return IRQ_HANDLED; -} - -static int el16_close(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - void __iomem *shmem = lp->base; - - netif_stop_queue(dev); - - /* Flush the Tx and disable Rx. */ - writew(RX_SUSPEND | CUC_SUSPEND,shmem+iSCB_CMD); - outb(0, ioaddr + SIGNAL_CA); - - /* Disable the 82586's input to the interrupt line. */ - outb(0x80, ioaddr + MISC_CTRL); - - /* We always physically use the IRQ line, so we don't do free_irq(). */ - - /* Update the statistics here. */ - - return 0; -} - -/* Initialize the Rx-block list. */ -static void init_rx_bufs(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - void __iomem *write_ptr; - unsigned short SCB_base = SCB_BASE; - - int cur_rxbuf = lp->rx_head = RX_BUF_START; - - /* Initialize each Rx frame + data buffer. */ - do { /* While there is room for one more. */ - - write_ptr = lp->base + cur_rxbuf; - - writew(0x0000,write_ptr); /* Status */ - writew(0x0000,write_ptr+=2); /* Command */ - writew(cur_rxbuf + RX_BUF_SIZE,write_ptr+=2); /* Link */ - writew(cur_rxbuf + 22,write_ptr+=2); /* Buffer offset */ - writew(0x0000,write_ptr+=2); /* Pad for dest addr. */ - writew(0x0000,write_ptr+=2); - writew(0x0000,write_ptr+=2); - writew(0x0000,write_ptr+=2); /* Pad for source addr. */ - writew(0x0000,write_ptr+=2); - writew(0x0000,write_ptr+=2); - writew(0x0000,write_ptr+=2); /* Pad for protocol. */ - - writew(0x0000,write_ptr+=2); /* Buffer: Actual count */ - writew(-1,write_ptr+=2); /* Buffer: Next (none). */ - writew(cur_rxbuf + 0x20 + SCB_base,write_ptr+=2);/* Buffer: Address low */ - writew(0x0000,write_ptr+=2); - /* Finally, the number of bytes in the buffer. */ - writew(0x8000 + RX_BUF_SIZE-0x20,write_ptr+=2); - - lp->rx_tail = cur_rxbuf; - cur_rxbuf += RX_BUF_SIZE; - } while (cur_rxbuf <= RX_BUF_END - RX_BUF_SIZE); - - /* Terminate the list by setting the EOL bit, and wrap the pointer to make - the list a ring. */ - write_ptr = lp->base + lp->rx_tail + 2; - writew(0xC000,write_ptr); /* Command, mark as last. */ - writew(lp->rx_head,write_ptr+2); /* Link */ -} - -static void init_82586_mem(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - short ioaddr = dev->base_addr; - void __iomem *shmem = lp->base; - - /* Enable loopback to protect the wire while starting up, - and hold the 586 in reset during the memory initialization. */ - outb(0x20, ioaddr + MISC_CTRL); - - /* Fix the ISCP address and base. */ - init_words[3] = SCB_BASE; - init_words[7] = SCB_BASE; - - /* Write the words at 0xfff6 (address-aliased to 0xfffff6). */ - memcpy_toio(lp->base + RX_BUF_END - 10, init_words, 10); - - /* Write the words at 0x0000. */ - memcpy_toio(lp->base, init_words + 5, sizeof(init_words) - 10); - - /* Fill in the station address. */ - memcpy_toio(lp->base+SA_OFFSET, dev->dev_addr, ETH_ALEN); - - /* The Tx-block list is written as needed. We just set up the values. */ - lp->tx_cmd_link = IDLELOOP + 4; - lp->tx_head = lp->tx_reap = TX_BUF_START; - - init_rx_bufs(dev); - - /* Start the 586 by releasing the reset line, but leave loopback. */ - outb(0xA0, ioaddr + MISC_CTRL); - - /* This was time consuming to track down: you need to give two channel - attention signals to reliably start up the i82586. */ - outb(0, ioaddr + SIGNAL_CA); - - { - int boguscnt = 50; - while (readw(shmem+iSCB_STATUS) == 0) - if (--boguscnt == 0) { - pr_warning("%s: i82586 initialization timed out with status %04x, cmd %04x.\n", - dev->name, readw(shmem+iSCB_STATUS), readw(shmem+iSCB_CMD)); - break; - } - /* Issue channel-attn -- the 82586 won't start. */ - outb(0, ioaddr + SIGNAL_CA); - } - - /* Disable loopback and enable interrupts. */ - outb(0x84, ioaddr + MISC_CTRL); - if (net_debug > 4) - pr_debug("%s: Initialized 82586, status %04x.\n", dev->name, - readw(shmem+iSCB_STATUS)); -} - -static void hardware_send_packet(struct net_device *dev, void *buf, short length, short pad) -{ - struct net_local *lp = netdev_priv(dev); - short ioaddr = dev->base_addr; - ushort tx_block = lp->tx_head; - void __iomem *write_ptr = lp->base + tx_block; - static char padding[ETH_ZLEN]; - - /* Set the write pointer to the Tx block, and put out the header. */ - writew(0x0000,write_ptr); /* Tx status */ - writew(CMD_INTR|CmdTx,write_ptr+=2); /* Tx command */ - writew(tx_block+16,write_ptr+=2); /* Next command is a NoOp. */ - writew(tx_block+8,write_ptr+=2); /* Data Buffer offset. */ - - /* Output the data buffer descriptor. */ - writew((pad + length) | 0x8000,write_ptr+=2); /* Byte count parameter. */ - writew(-1,write_ptr+=2); /* No next data buffer. */ - writew(tx_block+22+SCB_BASE,write_ptr+=2); /* Buffer follows the NoOp command. */ - writew(0x0000,write_ptr+=2); /* Buffer address high bits (always zero). */ - - /* Output the Loop-back NoOp command. */ - writew(0x0000,write_ptr+=2); /* Tx status */ - writew(CmdNOp,write_ptr+=2); /* Tx command */ - writew(tx_block+16,write_ptr+=2); /* Next is myself. */ - - /* Output the packet at the write pointer. */ - memcpy_toio(write_ptr+2, buf, length); - if (pad) - memcpy_toio(write_ptr+length+2, padding, pad); - - /* Set the old command link pointing to this send packet. */ - writew(tx_block,lp->base + lp->tx_cmd_link); - lp->tx_cmd_link = tx_block + 20; - - /* Set the next free tx region. */ - lp->tx_head = tx_block + TX_BUF_SIZE; - if (lp->tx_head > RX_BUF_START - TX_BUF_SIZE) - lp->tx_head = TX_BUF_START; - - if (net_debug > 4) { - pr_debug("%s: 3c507 @%x send length = %d, tx_block %3x, next %3x.\n", - dev->name, ioaddr, length, tx_block, lp->tx_head); - } - - /* Grimly block further packets if there has been insufficient reaping. */ - if (++lp->tx_pkts_in_ring < NUM_TX_BUFS) - netif_wake_queue(dev); -} - -static void el16_rx(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - void __iomem *shmem = lp->base; - ushort rx_head = lp->rx_head; - ushort rx_tail = lp->rx_tail; - ushort boguscount = 10; - short frame_status; - - while ((frame_status = readw(shmem+rx_head)) < 0) { /* Command complete */ - void __iomem *read_frame = lp->base + rx_head; - ushort rfd_cmd = readw(read_frame+2); - ushort next_rx_frame = readw(read_frame+4); - ushort data_buffer_addr = readw(read_frame+6); - void __iomem *data_frame = lp->base + data_buffer_addr; - ushort pkt_len = readw(data_frame); - - if (rfd_cmd != 0 || data_buffer_addr != rx_head + 22 || - (pkt_len & 0xC000) != 0xC000) { - pr_err("%s: Rx frame at %#x corrupted, " - "status %04x cmd %04x next %04x " - "data-buf @%04x %04x.\n", - dev->name, rx_head, frame_status, rfd_cmd, - next_rx_frame, data_buffer_addr, pkt_len); - } else if ((frame_status & 0x2000) == 0) { - /* Frame Rxed, but with error. */ - dev->stats.rx_errors++; - if (frame_status & 0x0800) dev->stats.rx_crc_errors++; - if (frame_status & 0x0400) dev->stats.rx_frame_errors++; - if (frame_status & 0x0200) dev->stats.rx_fifo_errors++; - if (frame_status & 0x0100) dev->stats.rx_over_errors++; - if (frame_status & 0x0080) dev->stats.rx_length_errors++; - } else { - /* Malloc up new buffer. */ - struct sk_buff *skb; - - pkt_len &= 0x3fff; - skb = netdev_alloc_skb(dev, pkt_len + 2); - if (skb == NULL) { - pr_err("%s: Memory squeeze, dropping packet.\n", - dev->name); - dev->stats.rx_dropped++; - break; - } - - skb_reserve(skb,2); - - /* 'skb->data' points to the start of sk_buff data area. */ - memcpy_fromio(skb_put(skb,pkt_len), data_frame + 10, pkt_len); - - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; - } - - /* Clear the status word and set End-of-List on the rx frame. */ - writew(0,read_frame); - writew(0xC000,read_frame+2); - /* Clear the end-of-list on the prev. RFD. */ - writew(0x0000,lp->base + rx_tail + 2); - - rx_tail = rx_head; - rx_head = next_rx_frame; - if (--boguscount == 0) - break; - } - - lp->rx_head = rx_head; - lp->rx_tail = rx_tail; -} - -static void netdev_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - sprintf(info->bus_info, "ISA 0x%lx", dev->base_addr); -} - -static u32 netdev_get_msglevel(struct net_device *dev) -{ - return debug; -} - -static void netdev_set_msglevel(struct net_device *dev, u32 level) -{ - debug = level; -} - -static const struct ethtool_ops netdev_ethtool_ops = { - .get_drvinfo = netdev_get_drvinfo, - .get_msglevel = netdev_get_msglevel, - .set_msglevel = netdev_set_msglevel, -}; - -#ifdef MODULE -static struct net_device *dev_3c507; -module_param(io, int, 0); -module_param(irq, int, 0); -MODULE_PARM_DESC(io, "EtherLink16 I/O base address"); -MODULE_PARM_DESC(irq, "(ignored)"); - -int __init init_module(void) -{ - if (io == 0) - pr_notice("3c507: You should not use auto-probing with insmod!\n"); - dev_3c507 = el16_probe(-1); - return IS_ERR(dev_3c507) ? PTR_ERR(dev_3c507) : 0; -} - -void __exit -cleanup_module(void) -{ - struct net_device *dev = dev_3c507; - unregister_netdev(dev); - free_irq(dev->irq, dev); - iounmap(((struct net_local *)netdev_priv(dev))->base); - release_region(dev->base_addr, EL16_IO_EXTENT); - free_netdev(dev); -} -#endif /* MODULE */ -MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c index 6aa927af382c..1c54e229e3cc 100644 --- a/drivers/net/ethernet/i825xx/82596.c +++ b/drivers/net/ethernet/i825xx/82596.c @@ -95,9 +95,6 @@ static char version[] __initdata = #if defined(CONFIG_BVME6000_NET) || defined(CONFIG_BVME6000_NET_MODULE) #define ENABLE_BVME6000_NET #endif -#if defined(CONFIG_APRICOT) || defined(CONFIG_APRICOT_MODULE) -#define ENABLE_APRICOT -#endif #ifdef ENABLE_MVME16x_NET #include <asm/mvme16xhw.h> @@ -120,8 +117,15 @@ static char version[] __initdata = #define WSWAPtbd(x) ((struct i596_tbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) #define WSWAPchar(x) ((char *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) #define ISCP_BUSY 0x00010000 -#define MACH_IS_APRICOT 0 #else +#error 82596.c: unknown architecture +#endif + +/* + * These were the intel versions, left here for reference. There + * are currently no x86 users of this legacy i82596 chip. + */ +#if 0 #define WSWAPrfd(x) ((struct i596_rfd *)((long)x)) #define WSWAPrbd(x) ((struct i596_rbd *)((long)x)) #define WSWAPiscp(x) ((struct i596_iscp *)((long)x)) @@ -130,7 +134,6 @@ static char version[] __initdata = #define WSWAPtbd(x) ((struct i596_tbd *)((long)x)) #define WSWAPchar(x) ((char *)((long)x)) #define ISCP_BUSY 0x0001 -#define MACH_IS_APRICOT 1 #endif /* @@ -383,11 +386,6 @@ static inline void CA(struct net_device *dev) i = *(volatile u32 *) (dev->base_addr); } #endif -#ifdef ENABLE_APRICOT - if (MACH_IS_APRICOT) { - outw(0, (short) (dev->base_addr) + 4); - } -#endif } @@ -617,9 +615,6 @@ static void rebuild_rx_bufs(struct net_device *dev) static int init_i596_mem(struct net_device *dev) { struct i596_private *lp = dev->ml_priv; -#if !defined(ENABLE_MVME16x_NET) && !defined(ENABLE_BVME6000_NET) || defined(ENABLE_APRICOT) - short ioaddr = dev->base_addr; -#endif unsigned long flags; MPU_PORT(dev, PORT_RESET, NULL); @@ -653,18 +648,6 @@ static int init_i596_mem(struct net_device *dev) MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp)); -#elif defined(ENABLE_APRICOT) - - { - u32 scp = virt_to_bus(&lp->scp); - - /* change the scp address */ - outw(0, ioaddr); - outw(0, ioaddr); - outb(4, ioaddr + 0xf); - outw(scp | 2, ioaddr); - outw(scp >> 16, ioaddr); - } #endif lp->last_cmd = jiffies; @@ -677,10 +660,6 @@ static int init_i596_mem(struct net_device *dev) if (MACH_IS_BVME6000) lp->scp.sysbus = 0x0000004c; #endif -#ifdef ENABLE_APRICOT - if (MACH_IS_APRICOT) - lp->scp.sysbus = 0x00440000; -#endif lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp)); lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb)); @@ -698,10 +677,6 @@ static int init_i596_mem(struct net_device *dev) DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name)); -#if defined(ENABLE_APRICOT) - (void) inb(ioaddr + 0x10); - outb(4, ioaddr + 0xf); -#endif CA(dev); if (wait_istat(dev,lp,1000,"initialization timed out")) @@ -1203,43 +1178,6 @@ struct net_device * __init i82596_probe(int unit) goto found; } #endif -#ifdef ENABLE_APRICOT - { - int checksum = 0; - int ioaddr = 0x300; - - /* this is easy the ethernet interface can only be at 0x300 */ - /* first check nothing is already registered here */ - - if (!request_region(ioaddr, I596_TOTAL_SIZE, DRV_NAME)) { - printk(KERN_ERR "82596: IO address 0x%04x in use\n", ioaddr); - err = -EBUSY; - goto out; - } - - dev->base_addr = ioaddr; - - for (i = 0; i < 8; i++) { - eth_addr[i] = inb(ioaddr + 8 + i); - checksum += eth_addr[i]; - } - - /* checksum is a multiple of 0x100, got this wrong first time - some machines have 0x100, some 0x200. The DOS driver doesn't - even bother with the checksum. - Some other boards trip the checksum.. but then appear as - ether address 0. Trap these - AC */ - - if ((checksum % 0x100) || - (memcmp(eth_addr, "\x00\x00\x49", 3) != 0)) { - err = -ENODEV; - goto out1; - } - - dev->irq = 10; - goto found; - } -#endif err = -ENODEV; goto out; @@ -1296,9 +1234,6 @@ out2: #endif free_page ((u32)(dev->mem_start)); out1: -#ifdef ENABLE_APRICOT - release_region(dev->base_addr, I596_TOTAL_SIZE); -#endif out: free_netdev(dev); return ERR_PTR(err); @@ -1455,10 +1390,6 @@ static irqreturn_t i596_interrupt(int irq, void *dev_id) *ethirq = 3; } #endif -#ifdef ENABLE_APRICOT - (void) inb(ioaddr + 0x10); - outb(4, ioaddr + 0xf); -#endif CA(dev); DEB(DEB_INTS,printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name)); @@ -1589,11 +1520,6 @@ static void set_multicast_list(struct net_device *dev) #ifdef MODULE static struct net_device *dev_82596; -#ifdef ENABLE_APRICOT -module_param(irq, int, 0); -MODULE_PARM_DESC(irq, "Apricot IRQ number"); -#endif - static int debug = -1; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "i82596 debug mask"); @@ -1620,10 +1546,6 @@ void __exit cleanup_module(void) IOMAP_FULL_CACHING); #endif free_page ((u32)(dev_82596->mem_start)); -#ifdef ENABLE_APRICOT - /* If we don't do this, we can't re-insmod it later. */ - release_region(dev_82596->base_addr, I596_TOTAL_SIZE); -#endif free_netdev(dev_82596); } diff --git a/drivers/net/ethernet/i825xx/Kconfig b/drivers/net/ethernet/i825xx/Kconfig index 959faf7388e2..955d929cd00f 100644 --- a/drivers/net/ethernet/i825xx/Kconfig +++ b/drivers/net/ethernet/i825xx/Kconfig @@ -6,7 +6,7 @@ config NET_VENDOR_I825XX bool "Intel (82586/82593/82596) devices" default y depends on NET_VENDOR_INTEL && (ISA || ISA_DMA_API || ARM || \ - ARCH_ACORN || MCA || MCA_LEGACY || SNI_RM || SUN3 || \ + ARCH_ACORN || SNI_RM || SUN3 || \ GSC || BVME6000 || MVME16x || EXPERIMENTAL) ---help--- If you have a network (Ethernet) card belonging to this class, say Y @@ -20,29 +20,6 @@ config NET_VENDOR_I825XX if NET_VENDOR_I825XX -config ELPLUS - tristate "3c505 \"EtherLink Plus\" support" - depends on ISA && ISA_DMA_API - ---help--- - Information about this network (Ethernet) card can be found in - <file:Documentation/networking/3c505.txt>. If you have a card of - this type, say Y and read the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - To compile this driver as a module, choose M here. The module - will be called 3c505. - -config EL16 - tristate "3c507 \"EtherLink 16\" support (EXPERIMENTAL)" - depends on ISA && EXPERIMENTAL - ---help--- - If you have a network (Ethernet) card of this type, say Y and read - the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - To compile this driver as a module, choose M here. The module - will be called 3c507. - config ARM_ETHER1 tristate "Acorn Ether1 support" depends on ARM && ARCH_ACORN @@ -50,17 +27,6 @@ config ARM_ETHER1 If you have an Acorn system with one of these (AKA25) network cards, you should say Y to this option if you wish to use it with Linux. -config APRICOT - tristate "Apricot Xen-II on board Ethernet" - depends on ISA - ---help--- - If you have a network (Ethernet) controller of this type, say Y and - read the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - To compile this driver as a module, choose M here. The module - will be called apricot. - config BVME6000_NET tristate "BVME6000 Ethernet support" depends on BVME6000 @@ -70,33 +36,6 @@ config BVME6000_NET in your kernel. To compile this driver as a module, choose M here. -config EEXPRESS - tristate "EtherExpress 16 support" - depends on ISA - ---help--- - If you have an EtherExpress16 network (Ethernet) card, say Y and - read the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. Note that the Intel - EtherExpress16 card used to be regarded as a very poor choice - because the driver was very unreliable. We now have a new driver - that should do better. - - To compile this driver as a module, choose M here. The module - will be called eexpress. - -config EEXPRESS_PRO - tristate "EtherExpressPro support/EtherExpress 10 (i82595) support" - depends on ISA - ---help--- - If you have a network (Ethernet) card of this type, say Y. This - driver supports Intel i82595{FX,TX} based boards. Note however - that the EtherExpress PRO/100 Ethernet card has its own separate - driver. Please read the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - To compile this driver as a module, choose M here. The module - will be called eepro. - config LASI_82596 tristate "Lasi ethernet" depends on GSC @@ -104,14 +43,6 @@ config LASI_82596 Say Y here to support the builtin Intel 82596 ethernet controller found in Hewlett-Packard PA-RISC machines with 10Mbit ethernet. -config LP486E - tristate "LP486E on board Ethernet" - depends on ISA - ---help--- - Say Y here to support the 82596-based on-board Ethernet controller - for the Panther motherboard, which is one of the two shipped in the - Intel Professional Workstation. - config MVME16x_NET tristate "MVME16x Ethernet support" depends on MVME16x @@ -121,17 +52,6 @@ config MVME16x_NET driver for this chip in your kernel. To compile this driver as a module, choose M here. -config NI52 - tristate "NI5210 support" - depends on ISA - ---help--- - If you have a network (Ethernet) card of this type, say Y and read - the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - To compile this driver as a module, choose M here. The module - will be called ni52. - config SNI_82596 tristate "SNI RM ethernet" depends on SNI_RM @@ -148,14 +68,4 @@ config SUN3_82586 that this driver does not support 82586-based adapters on additional VME boards. -config ZNET - tristate "Zenith Z-Note support (EXPERIMENTAL)" - depends on EXPERIMENTAL && ISA_DMA_API && X86 - ---help--- - The Zenith Z-Note notebook computer has a built-in network - (Ethernet) card, and this is the Linux driver for it. Note that the - IBM Thinkpad 300 is compatible with the Z-Note and is also supported - by this driver. Read the Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - endif # NET_VENDOR_I825XX diff --git a/drivers/net/ethernet/i825xx/Makefile b/drivers/net/ethernet/i825xx/Makefile index 6adff85e8ecc..8c8dcd29c40d 100644 --- a/drivers/net/ethernet/i825xx/Makefile +++ b/drivers/net/ethernet/i825xx/Makefile @@ -3,15 +3,7 @@ # obj-$(CONFIG_ARM_ETHER1) += ether1.o -obj-$(CONFIG_EEXPRESS) += eexpress.o -obj-$(CONFIG_EEXPRESS_PRO) += eepro.o -obj-$(CONFIG_ELPLUS) += 3c505.o -obj-$(CONFIG_EL16) += 3c507.o -obj-$(CONFIG_LP486E) += lp486e.o -obj-$(CONFIG_NI52) += ni52.o obj-$(CONFIG_SUN3_82586) += sun3_82586.o -obj-$(CONFIG_ZNET) += znet.o -obj-$(CONFIG_APRICOT) += 82596.o obj-$(CONFIG_LASI_82596) += lasi_82596.o obj-$(CONFIG_SNI_82596) += sni_82596.o obj-$(CONFIG_MVME16x_NET) += 82596.o diff --git a/drivers/net/ethernet/i825xx/eepro.c b/drivers/net/ethernet/i825xx/eepro.c deleted file mode 100644 index 7f49fd54c521..000000000000 --- a/drivers/net/ethernet/i825xx/eepro.c +++ /dev/null @@ -1,1822 +0,0 @@ -/* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */ -/* - Written 1994, 1995,1996 by Bao C. Ha. - - Copyright (C) 1994, 1995,1996 by Bao C. Ha. - - This software may be used and distributed - according to the terms of the GNU General Public License, - incorporated herein by reference. - - The author may be reached at bao.ha@srs.gov - or 418 Hastings Place, Martinez, GA 30907. - - Things remaining to do: - Better record keeping of errors. - Eliminate transmit interrupt to reduce overhead. - Implement "concurrent processing". I won't be doing it! - - Bugs: - - If you have a problem of not detecting the 82595 during a - reboot (warm reset), disable the FLASH memory should fix it. - This is a compatibility hardware problem. - - Versions: - 0.13b basic ethtool support (aris, 09/13/2004) - 0.13a in memory shortage, drop packets also in board - (Michael Westermann <mw@microdata-pos.de>, 07/30/2002) - 0.13 irq sharing, rewrote probe function, fixed a nasty bug in - hardware_send_packet and a major cleanup (aris, 11/08/2001) - 0.12d fixing a problem with single card detected as eight eth devices - fixing a problem with sudden drop in card performance - (chris (asdn@go2.pl), 10/29/2001) - 0.12c fixing some problems with old cards (aris, 01/08/2001) - 0.12b misc fixes (aris, 06/26/2000) - 0.12a port of version 0.12a of 2.2.x kernels to 2.3.x - (aris (aris@conectiva.com.br), 05/19/2000) - 0.11e some tweaks about multiple cards support (PdP, jul/aug 1999) - 0.11d added __initdata, __init stuff; call spin_lock_init - in eepro_probe1. Replaced "eepro" by dev->name. Augmented - the code protected by spin_lock in interrupt routine - (PdP, 12/12/1998) - 0.11c minor cleanup (PdP, RMC, 09/12/1998) - 0.11b Pascal Dupuis (dupuis@lei.ucl.ac.be): works as a module - under 2.1.xx. Debug messages are flagged as KERN_DEBUG to - avoid console flooding. Added locking at critical parts. Now - the dawn thing is SMP safe. - 0.11a Attempt to get 2.1.xx support up (RMC) - 0.11 Brian Candler added support for multiple cards. Tested as - a module, no idea if it works when compiled into kernel. - - 0.10e Rick Bressler notified me that ifconfig up;ifconfig down fails - because the irq is lost somewhere. Fixed that by moving - request_irq and free_irq to eepro_open and eepro_close respectively. - 0.10d Ugh! Now Wakeup works. Was seriously broken in my first attempt. - I'll need to find a way to specify an ioport other than - the default one in the PnP case. PnP definitively sucks. - And, yes, this is not the only reason. - 0.10c PnP Wakeup Test for 595FX. uncomment #define PnPWakeup; - to use. - 0.10b Should work now with (some) Pro/10+. At least for - me (and my two cards) it does. _No_ guarantee for - function with non-Pro/10+ cards! (don't have any) - (RMC, 9/11/96) - - 0.10 Added support for the Etherexpress Pro/10+. The - IRQ map was changed significantly from the old - pro/10. The new interrupt map was provided by - Rainer M. Canavan (Canavan@Zeus.cs.bonn.edu). - (BCH, 9/3/96) - - 0.09 Fixed a race condition in the transmit algorithm, - which causes crashes under heavy load with fast - pentium computers. The performance should also - improve a bit. The size of RX buffer, and hence - TX buffer, can also be changed via lilo or insmod. - (BCH, 7/31/96) - - 0.08 Implement 32-bit I/O for the 82595TX and 82595FX - based lan cards. Disable full-duplex mode if TPE - is not used. (BCH, 4/8/96) - - 0.07a Fix a stat report which counts every packet as a - heart-beat failure. (BCH, 6/3/95) - - 0.07 Modified to support all other 82595-based lan cards. - The IRQ vector of the EtherExpress Pro will be set - according to the value saved in the EEPROM. For other - cards, I will do autoirq_request() to grab the next - available interrupt vector. (BCH, 3/17/95) - - 0.06a,b Interim released. Minor changes in the comments and - print out format. (BCH, 3/9/95 and 3/14/95) - - 0.06 First stable release that I am comfortable with. (BCH, - 3/2/95) - - 0.05 Complete testing of multicast. (BCH, 2/23/95) - - 0.04 Adding multicast support. (BCH, 2/14/95) - - 0.03 First widely alpha release for public testing. - (BCH, 2/14/95) - -*/ - -static const char version[] = - "eepro.c: v0.13b 09/13/2004 aris@cathedrallabs.org\n"; - -#include <linux/module.h> - -/* - Sources: - - This driver wouldn't have been written without the availability - of the Crynwr's Lan595 driver source code. It helps me to - familiarize with the 82595 chipset while waiting for the Intel - documentation. I also learned how to detect the 82595 using - the packet driver's technique. - - This driver is written by cutting and pasting the skeleton.c driver - provided by Donald Becker. I also borrowed the EEPROM routine from - Donald Becker's 82586 driver. - - Datasheet for the Intel 82595 (including the TX and FX version). It - provides just enough info that the casual reader might think that it - documents the i82595. - - The User Manual for the 82595. It provides a lot of the missing - information. - -*/ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/bitops.h> -#include <linux/ethtool.h> - -#include <asm/io.h> -#include <asm/dma.h> - -#define DRV_NAME "eepro" -#define DRV_VERSION "0.13c" - -#define compat_dev_kfree_skb( skb, mode ) dev_kfree_skb( (skb) ) -/* I had reports of looong delays with SLOW_DOWN defined as udelay(2) */ -#define SLOW_DOWN inb(0x80) -/* udelay(2) */ -#define compat_init_data __initdata -enum iftype { AUI=0, BNC=1, TPE=2 }; - -/* First, a few definitions that the brave might change. */ -/* A zero-terminated list of I/O addresses to be probed. */ -static unsigned int eepro_portlist[] compat_init_data = - { 0x300, 0x210, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360, 0}; -/* note: 0x300 is default, the 595FX supports ALL IO Ports - from 0x000 to 0x3F0, some of which are reserved in PCs */ - -/* To try the (not-really PnP Wakeup: */ -/* -#define PnPWakeup -*/ - -/* use 0 for production, 1 for verification, >2 for debug */ -#ifndef NET_DEBUG -#define NET_DEBUG 0 -#endif -static unsigned int net_debug = NET_DEBUG; - -/* The number of low I/O ports used by the ethercard. */ -#define EEPRO_IO_EXTENT 16 - -/* Different 82595 chips */ -#define LAN595 0 -#define LAN595TX 1 -#define LAN595FX 2 -#define LAN595FX_10ISA 3 - -/* Information that need to be kept for each board. */ -struct eepro_local { - unsigned rx_start; - unsigned tx_start; /* start of the transmit chain */ - int tx_last; /* pointer to last packet in the transmit chain */ - unsigned tx_end; /* end of the transmit chain (plus 1) */ - int eepro; /* 1 for the EtherExpress Pro/10, - 2 for the EtherExpress Pro/10+, - 3 for the EtherExpress 10 (blue cards), - 0 for other 82595-based lan cards. */ - int version; /* a flag to indicate if this is a TX or FX - version of the 82595 chip. */ - int stepping; - - spinlock_t lock; /* Serializing lock */ - - unsigned rcv_ram; /* pre-calculated space for rx */ - unsigned xmt_ram; /* pre-calculated space for tx */ - unsigned char xmt_bar; - unsigned char xmt_lower_limit_reg; - unsigned char xmt_upper_limit_reg; - short xmt_lower_limit; - short xmt_upper_limit; - short rcv_lower_limit; - short rcv_upper_limit; - unsigned char eeprom_reg; - unsigned short word[8]; -}; - -/* The station (ethernet) address prefix, used for IDing the board. */ -#define SA_ADDR0 0x00 /* Etherexpress Pro/10 */ -#define SA_ADDR1 0xaa -#define SA_ADDR2 0x00 - -#define GetBit(x,y) ((x & (1<<y))>>y) - -/* EEPROM Word 0: */ -#define ee_PnP 0 /* Plug 'n Play enable bit */ -#define ee_Word1 1 /* Word 1? */ -#define ee_BusWidth 2 /* 8/16 bit */ -#define ee_FlashAddr 3 /* Flash Address */ -#define ee_FlashMask 0x7 /* Mask */ -#define ee_AutoIO 6 /* */ -#define ee_reserved0 7 /* =0! */ -#define ee_Flash 8 /* Flash there? */ -#define ee_AutoNeg 9 /* Auto Negotiation enabled? */ -#define ee_IO0 10 /* IO Address LSB */ -#define ee_IO0Mask 0x /*...*/ -#define ee_IO1 15 /* IO MSB */ - -/* EEPROM Word 1: */ -#define ee_IntSel 0 /* Interrupt */ -#define ee_IntMask 0x7 -#define ee_LI 3 /* Link Integrity 0= enabled */ -#define ee_PC 4 /* Polarity Correction 0= enabled */ -#define ee_TPE_AUI 5 /* PortSelection 1=TPE */ -#define ee_Jabber 6 /* Jabber prevention 0= enabled */ -#define ee_AutoPort 7 /* Auto Port Selection 1= Disabled */ -#define ee_SMOUT 8 /* SMout Pin Control 0= Input */ -#define ee_PROM 9 /* Flash EPROM / PROM 0=Flash */ -#define ee_reserved1 10 /* .. 12 =0! */ -#define ee_AltReady 13 /* Alternate Ready, 0=normal */ -#define ee_reserved2 14 /* =0! */ -#define ee_Duplex 15 - -/* Word2,3,4: */ -#define ee_IA5 0 /*bit start for individual Addr Byte 5 */ -#define ee_IA4 8 /*bit start for individual Addr Byte 5 */ -#define ee_IA3 0 /*bit start for individual Addr Byte 5 */ -#define ee_IA2 8 /*bit start for individual Addr Byte 5 */ -#define ee_IA1 0 /*bit start for individual Addr Byte 5 */ -#define ee_IA0 8 /*bit start for individual Addr Byte 5 */ - -/* Word 5: */ -#define ee_BNC_TPE 0 /* 0=TPE */ -#define ee_BootType 1 /* 00=None, 01=IPX, 10=ODI, 11=NDIS */ -#define ee_BootTypeMask 0x3 -#define ee_NumConn 3 /* Number of Connections 0= One or Two */ -#define ee_FlashSock 4 /* Presence of Flash Socket 0= Present */ -#define ee_PortTPE 5 -#define ee_PortBNC 6 -#define ee_PortAUI 7 -#define ee_PowerMgt 10 /* 0= disabled */ -#define ee_CP 13 /* Concurrent Processing */ -#define ee_CPMask 0x7 - -/* Word 6: */ -#define ee_Stepping 0 /* Stepping info */ -#define ee_StepMask 0x0F -#define ee_BoardID 4 /* Manucaturer Board ID, reserved */ -#define ee_BoardMask 0x0FFF - -/* Word 7: */ -#define ee_INT_TO_IRQ 0 /* int to IRQ Mapping = 0x1EB8 for Pro/10+ */ -#define ee_FX_INT2IRQ 0x1EB8 /* the _only_ mapping allowed for FX chips */ - -/*..*/ -#define ee_SIZE 0x40 /* total EEprom Size */ -#define ee_Checksum 0xBABA /* initial and final value for adding checksum */ - - -/* Card identification via EEprom: */ -#define ee_addr_vendor 0x10 /* Word offset for EISA Vendor ID */ -#define ee_addr_id 0x11 /* Word offset for Card ID */ -#define ee_addr_SN 0x12 /* Serial Number */ -#define ee_addr_CRC_8 0x14 /* CRC over last thee Bytes */ - - -#define ee_vendor_intel0 0x25 /* Vendor ID Intel */ -#define ee_vendor_intel1 0xD4 -#define ee_id_eepro10p0 0x10 /* ID for eepro/10+ */ -#define ee_id_eepro10p1 0x31 - -#define TX_TIMEOUT ((4*HZ)/10) - -/* Index to functions, as function prototypes. */ - -static int eepro_probe1(struct net_device *dev, int autoprobe); -static int eepro_open(struct net_device *dev); -static netdev_tx_t eepro_send_packet(struct sk_buff *skb, - struct net_device *dev); -static irqreturn_t eepro_interrupt(int irq, void *dev_id); -static void eepro_rx(struct net_device *dev); -static void eepro_transmit_interrupt(struct net_device *dev); -static int eepro_close(struct net_device *dev); -static void set_multicast_list(struct net_device *dev); -static void eepro_tx_timeout (struct net_device *dev); - -static int read_eeprom(int ioaddr, int location, struct net_device *dev); -static int hardware_send_packet(struct net_device *dev, void *buf, short length); -static int eepro_grab_irq(struct net_device *dev); - -/* - Details of the i82595. - -You will need either the datasheet or the user manual to understand what -is going on here. The 82595 is very different from the 82586, 82593. - -The receive algorithm in eepro_rx() is just an implementation of the -RCV ring structure that the Intel 82595 imposes at the hardware level. -The receive buffer is set at 24K, and the transmit buffer is 8K. I -am assuming that the total buffer memory is 32K, which is true for the -Intel EtherExpress Pro/10. If it is less than that on a generic card, -the driver will be broken. - -The transmit algorithm in the hardware_send_packet() is similar to the -one in the eepro_rx(). The transmit buffer is a ring linked list. -I just queue the next available packet to the end of the list. In my -system, the 82595 is so fast that the list seems to always contain a -single packet. In other systems with faster computers and more congested -network traffics, the ring linked list should improve performance by -allowing up to 8K worth of packets to be queued. - -The sizes of the receive and transmit buffers can now be changed via lilo -or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0" -where rx-buffer is in KB unit. Modules uses the parameter mem which is -also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer." -The receive buffer has to be more than 3K or less than 29K. Otherwise, -it is reset to the default of 24K, and, hence, 8K for the trasnmit -buffer (transmit-buffer = 32K - receive-buffer). - -*/ -#define RAM_SIZE 0x8000 - -#define RCV_HEADER 8 -#define RCV_DEFAULT_RAM 0x6000 - -#define XMT_HEADER 8 -#define XMT_DEFAULT_RAM (RAM_SIZE - RCV_DEFAULT_RAM) - -#define XMT_START_PRO RCV_DEFAULT_RAM -#define XMT_START_10 0x0000 -#define RCV_START_PRO 0x0000 -#define RCV_START_10 XMT_DEFAULT_RAM - -#define RCV_DONE 0x0008 -#define RX_OK 0x2000 -#define RX_ERROR 0x0d81 - -#define TX_DONE_BIT 0x0080 -#define TX_OK 0x2000 -#define CHAIN_BIT 0x8000 -#define XMT_STATUS 0x02 -#define XMT_CHAIN 0x04 -#define XMT_COUNT 0x06 - -#define BANK0_SELECT 0x00 -#define BANK1_SELECT 0x40 -#define BANK2_SELECT 0x80 - -/* Bank 0 registers */ -#define COMMAND_REG 0x00 /* Register 0 */ -#define MC_SETUP 0x03 -#define XMT_CMD 0x04 -#define DIAGNOSE_CMD 0x07 -#define RCV_ENABLE_CMD 0x08 -#define RCV_DISABLE_CMD 0x0a -#define STOP_RCV_CMD 0x0b -#define RESET_CMD 0x0e -#define POWER_DOWN_CMD 0x18 -#define RESUME_XMT_CMD 0x1c -#define SEL_RESET_CMD 0x1e -#define STATUS_REG 0x01 /* Register 1 */ -#define RX_INT 0x02 -#define TX_INT 0x04 -#define EXEC_STATUS 0x30 -#define ID_REG 0x02 /* Register 2 */ -#define R_ROBIN_BITS 0xc0 /* round robin counter */ -#define ID_REG_MASK 0x2c -#define ID_REG_SIG 0x24 -#define AUTO_ENABLE 0x10 -#define INT_MASK_REG 0x03 /* Register 3 */ -#define RX_STOP_MASK 0x01 -#define RX_MASK 0x02 -#define TX_MASK 0x04 -#define EXEC_MASK 0x08 -#define ALL_MASK 0x0f -#define IO_32_BIT 0x10 -#define RCV_BAR 0x04 /* The following are word (16-bit) registers */ -#define RCV_STOP 0x06 - -#define XMT_BAR_PRO 0x0a -#define XMT_BAR_10 0x0b - -#define HOST_ADDRESS_REG 0x0c -#define IO_PORT 0x0e -#define IO_PORT_32_BIT 0x0c - -/* Bank 1 registers */ -#define REG1 0x01 -#define WORD_WIDTH 0x02 -#define INT_ENABLE 0x80 -#define INT_NO_REG 0x02 -#define RCV_LOWER_LIMIT_REG 0x08 -#define RCV_UPPER_LIMIT_REG 0x09 - -#define XMT_LOWER_LIMIT_REG_PRO 0x0a -#define XMT_UPPER_LIMIT_REG_PRO 0x0b -#define XMT_LOWER_LIMIT_REG_10 0x0b -#define XMT_UPPER_LIMIT_REG_10 0x0a - -/* Bank 2 registers */ -#define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */ -#define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */ -#define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */ -#define REG2 0x02 -#define PRMSC_Mode 0x01 -#define Multi_IA 0x20 -#define REG3 0x03 -#define TPE_BIT 0x04 -#define BNC_BIT 0x20 -#define REG13 0x0d -#define FDX 0x00 -#define A_N_ENABLE 0x02 - -#define I_ADD_REG0 0x04 -#define I_ADD_REG1 0x05 -#define I_ADD_REG2 0x06 -#define I_ADD_REG3 0x07 -#define I_ADD_REG4 0x08 -#define I_ADD_REG5 0x09 - -#define EEPROM_REG_PRO 0x0a -#define EEPROM_REG_10 0x0b - -#define EESK 0x01 -#define EECS 0x02 -#define EEDI 0x04 -#define EEDO 0x08 - -/* do a full reset */ -#define eepro_reset(ioaddr) outb(RESET_CMD, ioaddr) - -/* do a nice reset */ -#define eepro_sel_reset(ioaddr) { \ - outb(SEL_RESET_CMD, ioaddr); \ - SLOW_DOWN; \ - SLOW_DOWN; \ - } - -/* disable all interrupts */ -#define eepro_dis_int(ioaddr) outb(ALL_MASK, ioaddr + INT_MASK_REG) - -/* clear all interrupts */ -#define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG) - -/* enable tx/rx */ -#define eepro_en_int(ioaddr) outb(ALL_MASK & ~(RX_MASK | TX_MASK), \ - ioaddr + INT_MASK_REG) - -/* enable exec event interrupt */ -#define eepro_en_intexec(ioaddr) outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG) - -/* enable rx */ -#define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr) - -/* disable rx */ -#define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr) - -/* switch bank */ -#define eepro_sw2bank0(ioaddr) outb(BANK0_SELECT, ioaddr) -#define eepro_sw2bank1(ioaddr) outb(BANK1_SELECT, ioaddr) -#define eepro_sw2bank2(ioaddr) outb(BANK2_SELECT, ioaddr) - -/* enable interrupt line */ -#define eepro_en_intline(ioaddr) outb(inb(ioaddr + REG1) | INT_ENABLE,\ - ioaddr + REG1) - -/* disable interrupt line */ -#define eepro_dis_intline(ioaddr) outb(inb(ioaddr + REG1) & 0x7f, \ - ioaddr + REG1); - -/* set diagnose flag */ -#define eepro_diag(ioaddr) outb(DIAGNOSE_CMD, ioaddr) - -/* ack for rx int */ -#define eepro_ack_rx(ioaddr) outb (RX_INT, ioaddr + STATUS_REG) - -/* ack for tx int */ -#define eepro_ack_tx(ioaddr) outb (TX_INT, ioaddr + STATUS_REG) - -/* a complete sel reset */ -#define eepro_complete_selreset(ioaddr) { \ - dev->stats.tx_errors++;\ - eepro_sel_reset(ioaddr);\ - lp->tx_end = \ - lp->xmt_lower_limit;\ - lp->tx_start = lp->tx_end;\ - lp->tx_last = 0;\ - dev->trans_start = jiffies;\ - netif_wake_queue(dev);\ - eepro_en_rx(ioaddr);\ - } - -/* Check for a network adaptor of this type, and return '0' if one exists. - If dev->base_addr == 0, probe all likely locations. - If dev->base_addr == 1, always return failure. - If dev->base_addr == 2, allocate space for the device and return success - (detachable devices only). - */ -static int __init do_eepro_probe(struct net_device *dev) -{ - int i; - int base_addr = dev->base_addr; - int irq = dev->irq; - -#ifdef PnPWakeup - /* XXXX for multiple cards should this only be run once? */ - - /* Wakeup: */ - #define WakeupPort 0x279 - #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\ - 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\ - 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\ - 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43} - - { - unsigned short int WS[32]=WakeupSeq; - - if (request_region(WakeupPort, 2, "eepro wakeup")) { - if (net_debug>5) - printk(KERN_DEBUG "Waking UP\n"); - - outb_p(0,WakeupPort); - outb_p(0,WakeupPort); - for (i=0; i<32; i++) { - outb_p(WS[i],WakeupPort); - if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]); - } - - release_region(WakeupPort, 2); - } else - printk(KERN_WARNING "PnP wakeup region busy!\n"); - } -#endif - - if (base_addr > 0x1ff) /* Check a single specified location. */ - return eepro_probe1(dev, 0); - - else if (base_addr != 0) /* Don't probe at all. */ - return -ENXIO; - - for (i = 0; eepro_portlist[i]; i++) { - dev->base_addr = eepro_portlist[i]; - dev->irq = irq; - if (eepro_probe1(dev, 1) == 0) - return 0; - } - - return -ENODEV; -} - -#ifndef MODULE -struct net_device * __init eepro_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct eepro_local)); - int err; - - if (!dev) - return ERR_PTR(-ENODEV); - - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - - err = do_eepro_probe(dev); - if (err) - goto out; - return dev; -out: - free_netdev(dev); - return ERR_PTR(err); -} -#endif - -static void __init printEEPROMInfo(struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - unsigned short Word; - int i,j; - - j = ee_Checksum; - for (i = 0; i < 8; i++) - j += lp->word[i]; - for ( ; i < ee_SIZE; i++) - j += read_eeprom(ioaddr, i, dev); - - printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff); - - Word = lp->word[0]; - printk(KERN_DEBUG "Word0:\n"); - printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP)); - printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 ); - printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg)); - printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4); - - if (net_debug>4) { - Word = lp->word[1]; - printk(KERN_DEBUG "Word1:\n"); - printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask); - printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI)); - printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC)); - printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI)); - printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber)); - printk(KERN_DEBUG " AutoPort: %d\n", !GetBit(Word,ee_AutoPort)); - printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex)); - } - - Word = lp->word[5]; - printk(KERN_DEBUG "Word5:\n"); - printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE)); - printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn)); - printk(KERN_DEBUG " Has "); - if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE "); - if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC "); - if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI "); - printk(KERN_DEBUG "port(s)\n"); - - Word = lp->word[6]; - printk(KERN_DEBUG "Word6:\n"); - printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask); - printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID); - - Word = lp->word[7]; - printk(KERN_DEBUG "Word7:\n"); - printk(KERN_DEBUG " INT to IRQ:\n"); - - for (i=0, j=0; i<15; i++) - if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i); - - printk(KERN_DEBUG "\n"); -} - -/* function to recalculate the limits of buffer based on rcv_ram */ -static void eepro_recalc (struct net_device *dev) -{ - struct eepro_local * lp; - - lp = netdev_priv(dev); - lp->xmt_ram = RAM_SIZE - lp->rcv_ram; - - if (lp->eepro == LAN595FX_10ISA) { - lp->xmt_lower_limit = XMT_START_10; - lp->xmt_upper_limit = (lp->xmt_ram - 2); - lp->rcv_lower_limit = lp->xmt_ram; - lp->rcv_upper_limit = (RAM_SIZE - 2); - } - else { - lp->rcv_lower_limit = RCV_START_PRO; - lp->rcv_upper_limit = (lp->rcv_ram - 2); - lp->xmt_lower_limit = lp->rcv_ram; - lp->xmt_upper_limit = (RAM_SIZE - 2); - } -} - -/* prints boot-time info */ -static void __init eepro_print_info (struct net_device *dev) -{ - struct eepro_local * lp = netdev_priv(dev); - int i; - const char * ifmap[] = {"AUI", "10Base2", "10BaseT"}; - - i = inb(dev->base_addr + ID_REG); - printk(KERN_DEBUG " id: %#x ",i); - printk(" io: %#x ", (unsigned)dev->base_addr); - - switch (lp->eepro) { - case LAN595FX_10ISA: - printk("%s: Intel EtherExpress 10 ISA\n at %#x,", - dev->name, (unsigned)dev->base_addr); - break; - case LAN595FX: - printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,", - dev->name, (unsigned)dev->base_addr); - break; - case LAN595TX: - printk("%s: Intel EtherExpress Pro/10 ISA at %#x,", - dev->name, (unsigned)dev->base_addr); - break; - case LAN595: - printk("%s: Intel 82595-based lan card at %#x,", - dev->name, (unsigned)dev->base_addr); - break; - } - - printk(" %pM", dev->dev_addr); - - if (net_debug > 3) - printk(KERN_DEBUG ", %dK RCV buffer", - (int)(lp->rcv_ram)/1024); - - if (dev->irq > 2) - printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]); - else - printk(", %s.\n", ifmap[dev->if_port]); - - if (net_debug > 3) { - i = lp->word[5]; - if (i & 0x2000) /* bit 13 of EEPROM word 5 */ - printk(KERN_DEBUG "%s: Concurrent Processing is " - "enabled but not used!\n", dev->name); - } - - /* Check the station address for the manufacturer's code */ - if (net_debug>3) - printEEPROMInfo(dev); -} - -static const struct ethtool_ops eepro_ethtool_ops; - -static const struct net_device_ops eepro_netdev_ops = { - .ndo_open = eepro_open, - .ndo_stop = eepro_close, - .ndo_start_xmit = eepro_send_packet, - .ndo_set_rx_mode = set_multicast_list, - .ndo_tx_timeout = eepro_tx_timeout, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -/* This is the real probe routine. Linux has a history of friendly device - probes on the ISA bus. A good device probe avoids doing writes, and - verifies that the correct device exists and functions. */ - -static int __init eepro_probe1(struct net_device *dev, int autoprobe) -{ - unsigned short station_addr[3], id, counter; - int i; - struct eepro_local *lp; - int ioaddr = dev->base_addr; - int err; - - /* Grab the region so we can find another board if autoIRQ fails. */ - if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) { - if (!autoprobe) - printk(KERN_WARNING "EEPRO: io-port 0x%04x in use\n", - ioaddr); - return -EBUSY; - } - - /* Now, we are going to check for the signature of the - ID_REG (register 2 of bank 0) */ - - id = inb(ioaddr + ID_REG); - - if ((id & ID_REG_MASK) != ID_REG_SIG) - goto exit; - - /* We seem to have the 82595 signature, let's - play with its counter (last 2 bits of - register 2 of bank 0) to be sure. */ - - counter = id & R_ROBIN_BITS; - - if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40)) - goto exit; - - lp = netdev_priv(dev); - memset(lp, 0, sizeof(struct eepro_local)); - lp->xmt_bar = XMT_BAR_PRO; - lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO; - lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO; - lp->eeprom_reg = EEPROM_REG_PRO; - spin_lock_init(&lp->lock); - - /* Now, get the ethernet hardware address from - the EEPROM */ - station_addr[0] = read_eeprom(ioaddr, 2, dev); - - /* FIXME - find another way to know that we've found - * an Etherexpress 10 - */ - if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) { - lp->eepro = LAN595FX_10ISA; - lp->eeprom_reg = EEPROM_REG_10; - lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10; - lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10; - lp->xmt_bar = XMT_BAR_10; - station_addr[0] = read_eeprom(ioaddr, 2, dev); - } - - /* get all words at once. will be used here and for ethtool */ - for (i = 0; i < 8; i++) { - lp->word[i] = read_eeprom(ioaddr, i, dev); - } - station_addr[1] = lp->word[3]; - station_addr[2] = lp->word[4]; - - if (!lp->eepro) { - if (lp->word[7] == ee_FX_INT2IRQ) - lp->eepro = 2; - else if (station_addr[2] == SA_ADDR1) - lp->eepro = 1; - } - - /* Fill in the 'dev' fields. */ - for (i=0; i < 6; i++) - dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i]; - - /* RX buffer must be more than 3K and less than 29K */ - if (dev->mem_end < 3072 || dev->mem_end > 29696) - lp->rcv_ram = RCV_DEFAULT_RAM; - - /* calculate {xmt,rcv}_{lower,upper}_limit */ - eepro_recalc(dev); - - if (GetBit(lp->word[5], ee_BNC_TPE)) - dev->if_port = BNC; - else - dev->if_port = TPE; - - if (dev->irq < 2 && lp->eepro != 0) { - /* Mask off INT number */ - int count = lp->word[1] & 7; - unsigned irqMask = lp->word[7]; - - while (count--) - irqMask &= irqMask - 1; - - count = ffs(irqMask); - - if (count) - dev->irq = count - 1; - - if (dev->irq < 2) { - printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n"); - goto exit; - } else if (dev->irq == 2) { - dev->irq = 9; - } - } - - dev->netdev_ops = &eepro_netdev_ops; - dev->watchdog_timeo = TX_TIMEOUT; - dev->ethtool_ops = &eepro_ethtool_ops; - - /* print boot time info */ - eepro_print_info(dev); - - /* reset 82595 */ - eepro_reset(ioaddr); - - err = register_netdev(dev); - if (err) - goto err; - return 0; -exit: - err = -ENODEV; -err: - release_region(dev->base_addr, EEPRO_IO_EXTENT); - return err; -} - -/* Open/initialize the board. This is called (in the current kernel) - sometime after booting when the 'ifconfig' program is run. - - This routine should set everything up anew at each open, even - registers that "should" only need to be set once at boot, so that - there is non-reboot way to recover if something goes wrong. - */ - -static const char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1}; -static const char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1}; -static int eepro_grab_irq(struct net_device *dev) -{ - static const int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 }; - const int *irqp = irqlist; - int temp_reg, ioaddr = dev->base_addr; - - eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */ - - /* Enable the interrupt line. */ - eepro_en_intline(ioaddr); - - /* be CAREFUL, BANK 0 now */ - eepro_sw2bank0(ioaddr); - - /* clear all interrupts */ - eepro_clear_int(ioaddr); - - /* Let EXEC event to interrupt */ - eepro_en_intexec(ioaddr); - - do { - eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */ - - temp_reg = inb(ioaddr + INT_NO_REG); - outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG); - - eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */ - - if (request_irq (*irqp, NULL, IRQF_SHARED, "bogus", dev) != EBUSY) { - unsigned long irq_mask; - /* Twinkle the interrupt, and check if it's seen */ - irq_mask = probe_irq_on(); - - eepro_diag(ioaddr); /* RESET the 82595 */ - mdelay(20); - - if (*irqp == probe_irq_off(irq_mask)) /* It's a good IRQ line */ - break; - - /* clear all interrupts */ - eepro_clear_int(ioaddr); - } - } while (*++irqp); - - eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */ - - /* Disable the physical interrupt line. */ - eepro_dis_intline(ioaddr); - - eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */ - - /* Mask all the interrupts. */ - eepro_dis_int(ioaddr); - - /* clear all interrupts */ - eepro_clear_int(ioaddr); - - return dev->irq; -} - -static int eepro_open(struct net_device *dev) -{ - unsigned short temp_reg, old8, old9; - int irqMask; - int i, ioaddr = dev->base_addr; - struct eepro_local *lp = netdev_priv(dev); - - if (net_debug > 3) - printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name); - - irqMask = lp->word[7]; - - if (lp->eepro == LAN595FX_10ISA) { - if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n"); - } - else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */ - { - lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */ - if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n"); - } - - else if ((dev->dev_addr[0] == SA_ADDR0 && - dev->dev_addr[1] == SA_ADDR1 && - dev->dev_addr[2] == SA_ADDR2)) - { - lp->eepro = 1; - if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n"); - } /* Yes, an Intel EtherExpress Pro/10 */ - - else lp->eepro = 0; /* No, it is a generic 82585 lan card */ - - /* Get the interrupt vector for the 82595 */ - if (dev->irq < 2 && eepro_grab_irq(dev) == 0) { - printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq); - return -EAGAIN; - } - - if (request_irq(dev->irq , eepro_interrupt, 0, dev->name, dev)) { - printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq); - return -EAGAIN; - } - - /* Initialize the 82595. */ - - eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */ - temp_reg = inb(ioaddr + lp->eeprom_reg); - - lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */ - - if (net_debug > 3) - printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping); - - if (temp_reg & 0x10) /* Check the TurnOff Enable bit */ - outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg); - for (i=0; i < 6; i++) - outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i); - - temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */ - outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */ - | RCV_Discard_BadFrame, ioaddr + REG1); - - temp_reg = inb(ioaddr + REG2); /* Match broadcast */ - outb(temp_reg | 0x14, ioaddr + REG2); - - temp_reg = inb(ioaddr + REG3); - outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */ - - /* Set the receiving mode */ - eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */ - - /* Set the interrupt vector */ - temp_reg = inb(ioaddr + INT_NO_REG); - if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA) - outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG); - else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG); - - - temp_reg = inb(ioaddr + INT_NO_REG); - if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA) - outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG); - else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG); - - if (net_debug > 3) - printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg); - - - /* Initialize the RCV and XMT upper and lower limits */ - outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG); - outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG); - outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg); - outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg); - - /* Enable the interrupt line. */ - eepro_en_intline(ioaddr); - - /* Switch back to Bank 0 */ - eepro_sw2bank0(ioaddr); - - /* Let RX and TX events to interrupt */ - eepro_en_int(ioaddr); - - /* clear all interrupts */ - eepro_clear_int(ioaddr); - - /* Initialize RCV */ - outw(lp->rcv_lower_limit, ioaddr + RCV_BAR); - lp->rx_start = lp->rcv_lower_limit; - outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP); - - /* Initialize XMT */ - outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar); - lp->tx_start = lp->tx_end = lp->xmt_lower_limit; - lp->tx_last = 0; - - /* Check for the i82595TX and i82595FX */ - old8 = inb(ioaddr + 8); - outb(~old8, ioaddr + 8); - - if ((temp_reg = inb(ioaddr + 8)) == old8) { - if (net_debug > 3) - printk(KERN_DEBUG "i82595 detected!\n"); - lp->version = LAN595; - } - else { - lp->version = LAN595TX; - outb(old8, ioaddr + 8); - old9 = inb(ioaddr + 9); - - if (irqMask==ee_FX_INT2IRQ) { - if (net_debug > 3) { - printk(KERN_DEBUG "IrqMask: %#x\n",irqMask); - printk(KERN_DEBUG "i82595FX detected!\n"); - } - lp->version = LAN595FX; - outb(old9, ioaddr + 9); - if (dev->if_port != TPE) { /* Hopefully, this will fix the - problem of using Pentiums and - pro/10 w/ BNC. */ - eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */ - temp_reg = inb(ioaddr + REG13); - /* disable the full duplex mode since it is not - applicable with the 10Base2 cable. */ - outb(temp_reg & ~(FDX | A_N_ENABLE), REG13); - eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */ - } - } - else if (net_debug > 3) { - printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff)); - printk(KERN_DEBUG "i82595TX detected!\n"); - } - } - - eepro_sel_reset(ioaddr); - - netif_start_queue(dev); - - if (net_debug > 3) - printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name); - - /* enabling rx */ - eepro_en_rx(ioaddr); - - return 0; -} - -static void eepro_tx_timeout (struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - /* if (net_debug > 1) */ - printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name, - "network cable problem"); - /* This is not a duplicate. One message for the console, - one for the log file */ - printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name, - "network cable problem"); - eepro_complete_selreset(ioaddr); -} - - -static netdev_tx_t eepro_send_packet(struct sk_buff *skb, - struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - unsigned long flags; - int ioaddr = dev->base_addr; - short length = skb->len; - - if (net_debug > 5) - printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name); - - if (length < ETH_ZLEN) { - if (skb_padto(skb, ETH_ZLEN)) - return NETDEV_TX_OK; - length = ETH_ZLEN; - } - netif_stop_queue (dev); - - eepro_dis_int(ioaddr); - spin_lock_irqsave(&lp->lock, flags); - - { - unsigned char *buf = skb->data; - - if (hardware_send_packet(dev, buf, length)) - /* we won't wake queue here because we're out of space */ - dev->stats.tx_dropped++; - else { - dev->stats.tx_bytes+=skb->len; - netif_wake_queue(dev); - } - - } - - dev_kfree_skb (skb); - - /* You might need to clean up and record Tx statistics here. */ - /* dev->stats.tx_aborted_errors++; */ - - if (net_debug > 5) - printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name); - - eepro_en_int(ioaddr); - spin_unlock_irqrestore(&lp->lock, flags); - - return NETDEV_TX_OK; -} - - -/* The typical workload of the driver: - Handle the network interface interrupts. */ - -static irqreturn_t -eepro_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct eepro_local *lp; - int ioaddr, status, boguscount = 20; - int handled = 0; - - lp = netdev_priv(dev); - - spin_lock(&lp->lock); - - if (net_debug > 5) - printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name); - - ioaddr = dev->base_addr; - - while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--)) - { - handled = 1; - if (status & RX_INT) { - if (net_debug > 4) - printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name); - - eepro_dis_int(ioaddr); - - /* Get the received packets */ - eepro_ack_rx(ioaddr); - eepro_rx(dev); - - eepro_en_int(ioaddr); - } - if (status & TX_INT) { - if (net_debug > 4) - printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name); - - - eepro_dis_int(ioaddr); - - /* Process the status of transmitted packets */ - eepro_ack_tx(ioaddr); - eepro_transmit_interrupt(dev); - - eepro_en_int(ioaddr); - } - } - - if (net_debug > 5) - printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name); - - spin_unlock(&lp->lock); - return IRQ_RETVAL(handled); -} - -static int eepro_close(struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - short temp_reg; - - netif_stop_queue(dev); - - eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */ - - /* Disable the physical interrupt line. */ - temp_reg = inb(ioaddr + REG1); - outb(temp_reg & 0x7f, ioaddr + REG1); - - eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */ - - /* Flush the Tx and disable Rx. */ - outb(STOP_RCV_CMD, ioaddr); - lp->tx_start = lp->tx_end = lp->xmt_lower_limit; - lp->tx_last = 0; - - /* Mask all the interrupts. */ - eepro_dis_int(ioaddr); - - /* clear all interrupts */ - eepro_clear_int(ioaddr); - - /* Reset the 82595 */ - eepro_reset(ioaddr); - - /* release the interrupt */ - free_irq(dev->irq, dev); - - /* Update the statistics here. What statistics? */ - - return 0; -} - -/* Set or clear the multicast filter for this adaptor. - */ -static void -set_multicast_list(struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - short ioaddr = dev->base_addr; - unsigned short mode; - struct netdev_hw_addr *ha; - int mc_count = netdev_mc_count(dev); - - if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || mc_count > 63) - { - eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */ - mode = inb(ioaddr + REG2); - outb(mode | PRMSC_Mode, ioaddr + REG2); - mode = inb(ioaddr + REG3); - outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */ - eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */ - } - - else if (mc_count == 0) - { - eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */ - mode = inb(ioaddr + REG2); - outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */ - mode = inb(ioaddr + REG3); - outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */ - eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */ - } - - else - { - unsigned short status, *eaddrs; - int i, boguscount = 0; - - /* Disable RX and TX interrupts. Necessary to avoid - corruption of the HOST_ADDRESS_REG by interrupt - service routines. */ - eepro_dis_int(ioaddr); - - eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */ - mode = inb(ioaddr + REG2); - outb(mode | Multi_IA, ioaddr + REG2); - mode = inb(ioaddr + REG3); - outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */ - eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */ - outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG); - outw(MC_SETUP, ioaddr + IO_PORT); - outw(0, ioaddr + IO_PORT); - outw(0, ioaddr + IO_PORT); - outw(6 * (mc_count + 1), ioaddr + IO_PORT); - - netdev_for_each_mc_addr(ha, dev) { - eaddrs = (unsigned short *) ha->addr; - outw(*eaddrs++, ioaddr + IO_PORT); - outw(*eaddrs++, ioaddr + IO_PORT); - outw(*eaddrs++, ioaddr + IO_PORT); - } - - eaddrs = (unsigned short *) dev->dev_addr; - outw(eaddrs[0], ioaddr + IO_PORT); - outw(eaddrs[1], ioaddr + IO_PORT); - outw(eaddrs[2], ioaddr + IO_PORT); - outw(lp->tx_end, ioaddr + lp->xmt_bar); - outb(MC_SETUP, ioaddr); - - /* Update the transmit queue */ - i = lp->tx_end + XMT_HEADER + 6 * (mc_count + 1); - - if (lp->tx_start != lp->tx_end) - { - /* update the next address and the chain bit in the - last packet */ - outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG); - outw(i, ioaddr + IO_PORT); - outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG); - status = inw(ioaddr + IO_PORT); - outw(status | CHAIN_BIT, ioaddr + IO_PORT); - lp->tx_end = i ; - } - else { - lp->tx_start = lp->tx_end = i ; - } - - /* Acknowledge that the MC setup is done */ - do { /* We should be doing this in the eepro_interrupt()! */ - SLOW_DOWN; - SLOW_DOWN; - if (inb(ioaddr + STATUS_REG) & 0x08) - { - i = inb(ioaddr); - outb(0x08, ioaddr + STATUS_REG); - - if (i & 0x20) { /* command ABORTed */ - printk(KERN_NOTICE "%s: multicast setup failed.\n", - dev->name); - break; - } else if ((i & 0x0f) == 0x03) { /* MC-Done */ - printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n", - dev->name, mc_count, - mc_count > 1 ? "es":""); - break; - } - } - } while (++boguscount < 100); - - /* Re-enable RX and TX interrupts */ - eepro_en_int(ioaddr); - } - if (lp->eepro == LAN595FX_10ISA) { - eepro_complete_selreset(ioaddr); - } - else - eepro_en_rx(ioaddr); -} - -/* The horrible routine to read a word from the serial EEPROM. */ -/* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */ - -/* The delay between EEPROM clock transitions. */ -#define eeprom_delay() { udelay(40); } -#define EE_READ_CMD (6 << 6) - -static int -read_eeprom(int ioaddr, int location, struct net_device *dev) -{ - int i; - unsigned short retval = 0; - struct eepro_local *lp = netdev_priv(dev); - short ee_addr = ioaddr + lp->eeprom_reg; - int read_cmd = location | EE_READ_CMD; - short ctrl_val = EECS ; - - /* XXXX - black magic */ - eepro_sw2bank1(ioaddr); - outb(0x00, ioaddr + STATUS_REG); - /* XXXX - black magic */ - - eepro_sw2bank2(ioaddr); - outb(ctrl_val, ee_addr); - - /* Shift the read command bits out. */ - for (i = 8; i >= 0; i--) { - short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI - : ctrl_val; - outb(outval, ee_addr); - outb(outval | EESK, ee_addr); /* EEPROM clock tick. */ - eeprom_delay(); - outb(outval, ee_addr); /* Finish EEPROM a clock tick. */ - eeprom_delay(); - } - outb(ctrl_val, ee_addr); - - for (i = 16; i > 0; i--) { - outb(ctrl_val | EESK, ee_addr); eeprom_delay(); - retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0); - outb(ctrl_val, ee_addr); eeprom_delay(); - } - - /* Terminate the EEPROM access. */ - ctrl_val &= ~EECS; - outb(ctrl_val | EESK, ee_addr); - eeprom_delay(); - outb(ctrl_val, ee_addr); - eeprom_delay(); - eepro_sw2bank0(ioaddr); - return retval; -} - -static int -hardware_send_packet(struct net_device *dev, void *buf, short length) -{ - struct eepro_local *lp = netdev_priv(dev); - short ioaddr = dev->base_addr; - unsigned status, tx_available, last, end; - - if (net_debug > 5) - printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name); - - /* determine how much of the transmit buffer space is available */ - if (lp->tx_end > lp->tx_start) - tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start); - else if (lp->tx_end < lp->tx_start) - tx_available = lp->tx_start - lp->tx_end; - else tx_available = lp->xmt_ram; - - if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) { - /* No space available ??? */ - return 1; - } - - last = lp->tx_end; - end = last + (((length + 3) >> 1) << 1) + XMT_HEADER; - - if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */ - if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) { - /* Arrrr!!!, must keep the xmt header together, - several days were lost to chase this one down. */ - last = lp->xmt_lower_limit; - end = last + (((length + 3) >> 1) << 1) + XMT_HEADER; - } - else end = lp->xmt_lower_limit + (end - - lp->xmt_upper_limit + 2); - } - - outw(last, ioaddr + HOST_ADDRESS_REG); - outw(XMT_CMD, ioaddr + IO_PORT); - outw(0, ioaddr + IO_PORT); - outw(end, ioaddr + IO_PORT); - outw(length, ioaddr + IO_PORT); - - if (lp->version == LAN595) - outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1); - else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */ - unsigned short temp = inb(ioaddr + INT_MASK_REG); - outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG); - outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2); - outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG); - } - - /* A dummy read to flush the DRAM write pipeline */ - status = inw(ioaddr + IO_PORT); - - if (lp->tx_start == lp->tx_end) { - outw(last, ioaddr + lp->xmt_bar); - outb(XMT_CMD, ioaddr); - lp->tx_start = last; /* I don't like to change tx_start here */ - } - else { - /* update the next address and the chain bit in the - last packet */ - - if (lp->tx_end != last) { - outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG); - outw(last, ioaddr + IO_PORT); - } - - outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG); - status = inw(ioaddr + IO_PORT); - outw(status | CHAIN_BIT, ioaddr + IO_PORT); - - /* Continue the transmit command */ - outb(RESUME_XMT_CMD, ioaddr); - } - - lp->tx_last = last; - lp->tx_end = end; - - if (net_debug > 5) - printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name); - - return 0; -} - -static void -eepro_rx(struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - short ioaddr = dev->base_addr; - short boguscount = 20; - short rcv_car = lp->rx_start; - unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size; - - if (net_debug > 5) - printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name); - - /* Set the read pointer to the start of the RCV */ - outw(rcv_car, ioaddr + HOST_ADDRESS_REG); - - rcv_event = inw(ioaddr + IO_PORT); - - while (rcv_event == RCV_DONE) { - - rcv_status = inw(ioaddr + IO_PORT); - rcv_next_frame = inw(ioaddr + IO_PORT); - rcv_size = inw(ioaddr + IO_PORT); - - if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) { - - /* Malloc up new buffer. */ - struct sk_buff *skb; - - dev->stats.rx_bytes+=rcv_size; - rcv_size &= 0x3fff; - skb = netdev_alloc_skb(dev, rcv_size + 5); - if (skb == NULL) { - printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name); - dev->stats.rx_dropped++; - rcv_car = lp->rx_start + RCV_HEADER + rcv_size; - lp->rx_start = rcv_next_frame; - outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG); - - break; - } - skb_reserve(skb,2); - - if (lp->version == LAN595) - insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1); - else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */ - unsigned short temp = inb(ioaddr + INT_MASK_REG); - outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG); - insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size), - (rcv_size + 3) >> 2); - outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG); - } - - skb->protocol = eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - } - - else { /* Not sure will ever reach here, - I set the 595 to discard bad received frames */ - dev->stats.rx_errors++; - - if (rcv_status & 0x0100) - dev->stats.rx_over_errors++; - - else if (rcv_status & 0x0400) - dev->stats.rx_frame_errors++; - - else if (rcv_status & 0x0800) - dev->stats.rx_crc_errors++; - - printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n", - dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size); - } - - if (rcv_status & 0x1000) - dev->stats.rx_length_errors++; - - rcv_car = lp->rx_start + RCV_HEADER + rcv_size; - lp->rx_start = rcv_next_frame; - - if (--boguscount == 0) - break; - - outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG); - rcv_event = inw(ioaddr + IO_PORT); - - } - if (rcv_car == 0) - rcv_car = lp->rcv_upper_limit | 0xff; - - outw(rcv_car - 1, ioaddr + RCV_STOP); - - if (net_debug > 5) - printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name); -} - -static void -eepro_transmit_interrupt(struct net_device *dev) -{ - struct eepro_local *lp = netdev_priv(dev); - short ioaddr = dev->base_addr; - short boguscount = 25; - short xmt_status; - - while ((lp->tx_start != lp->tx_end) && boguscount--) { - - outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG); - xmt_status = inw(ioaddr+IO_PORT); - - if (!(xmt_status & TX_DONE_BIT)) - break; - - xmt_status = inw(ioaddr+IO_PORT); - lp->tx_start = inw(ioaddr+IO_PORT); - - netif_wake_queue (dev); - - if (xmt_status & TX_OK) - dev->stats.tx_packets++; - else { - dev->stats.tx_errors++; - if (xmt_status & 0x0400) { - dev->stats.tx_carrier_errors++; - printk(KERN_DEBUG "%s: carrier error\n", - dev->name); - printk(KERN_DEBUG "%s: XMT status = %#x\n", - dev->name, xmt_status); - } - else { - printk(KERN_DEBUG "%s: XMT status = %#x\n", - dev->name, xmt_status); - printk(KERN_DEBUG "%s: XMT status = %#x\n", - dev->name, xmt_status); - } - } - if (xmt_status & 0x000f) { - dev->stats.collisions += (xmt_status & 0x000f); - } - - if ((xmt_status & 0x0040) == 0x0) { - dev->stats.tx_heartbeat_errors++; - } - } -} - -static int eepro_ethtool_get_settings(struct net_device *dev, - struct ethtool_cmd *cmd) -{ - struct eepro_local *lp = netdev_priv(dev); - - cmd->supported = SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_Autoneg; - cmd->advertising = ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_Autoneg; - - if (GetBit(lp->word[5], ee_PortTPE)) { - cmd->supported |= SUPPORTED_TP; - cmd->advertising |= ADVERTISED_TP; - } - if (GetBit(lp->word[5], ee_PortBNC)) { - cmd->supported |= SUPPORTED_BNC; - cmd->advertising |= ADVERTISED_BNC; - } - if (GetBit(lp->word[5], ee_PortAUI)) { - cmd->supported |= SUPPORTED_AUI; - cmd->advertising |= ADVERTISED_AUI; - } - - ethtool_cmd_speed_set(cmd, SPEED_10); - - if (dev->if_port == TPE && lp->word[1] & ee_Duplex) { - cmd->duplex = DUPLEX_FULL; - } - else { - cmd->duplex = DUPLEX_HALF; - } - - cmd->port = dev->if_port; - cmd->phy_address = dev->base_addr; - cmd->transceiver = XCVR_INTERNAL; - - if (lp->word[0] & ee_AutoNeg) { - cmd->autoneg = 1; - } - - return 0; -} - -static void eepro_ethtool_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *drvinfo) -{ - strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); - strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); - snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info), - "ISA 0x%lx", dev->base_addr); -} - -static const struct ethtool_ops eepro_ethtool_ops = { - .get_settings = eepro_ethtool_get_settings, - .get_drvinfo = eepro_ethtool_get_drvinfo, -}; - -#ifdef MODULE - -#define MAX_EEPRO 8 -static struct net_device *dev_eepro[MAX_EEPRO]; - -static int io[MAX_EEPRO] = { - [0 ... MAX_EEPRO-1] = -1 -}; -static int irq[MAX_EEPRO]; -static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */ - [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024 -}; -static int autodetect; - -static int n_eepro; -/* For linux 2.1.xx */ - -MODULE_AUTHOR("Pascal Dupuis and others"); -MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver"); -MODULE_LICENSE("GPL"); - -module_param_array(io, int, NULL, 0); -module_param_array(irq, int, NULL, 0); -module_param_array(mem, int, NULL, 0); -module_param(autodetect, int, 0); -MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base address(es)"); -MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)"); -MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)"); -MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)"); - -int __init init_module(void) -{ - struct net_device *dev; - int i; - if (io[0] == -1 && autodetect == 0) { - printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n"); - printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n"); - return -ENODEV; - } - else if (autodetect) { - /* if autodetect is set then we must force detection */ - for (i = 0; i < MAX_EEPRO; i++) { - io[i] = 0; - } - - printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n"); - } - - for (i = 0; i < MAX_EEPRO && io[i] != -1; i++) { - dev = alloc_etherdev(sizeof(struct eepro_local)); - if (!dev) - break; - - dev->mem_end = mem[i]; - dev->base_addr = io[i]; - dev->irq = irq[i]; - - if (do_eepro_probe(dev) == 0) { - dev_eepro[n_eepro++] = dev; - continue; - } - free_netdev(dev); - break; - } - - if (n_eepro) - printk(KERN_INFO "%s", version); - - return n_eepro ? 0 : -ENODEV; -} - -void __exit -cleanup_module(void) -{ - int i; - - for (i=0; i<n_eepro; i++) { - struct net_device *dev = dev_eepro[i]; - unregister_netdev(dev); - release_region(dev->base_addr, EEPRO_IO_EXTENT); - free_netdev(dev); - } -} -#endif /* MODULE */ diff --git a/drivers/net/ethernet/i825xx/eexpress.c b/drivers/net/ethernet/i825xx/eexpress.c deleted file mode 100644 index 7a6a2f04c5b1..000000000000 --- a/drivers/net/ethernet/i825xx/eexpress.c +++ /dev/null @@ -1,1661 +0,0 @@ -/* Intel EtherExpress 16 device driver for Linux - * - * Written by John Sullivan, 1995 - * based on original code by Donald Becker, with changes by - * Alan Cox and Pauline Middelink. - * - * Support for 8-bit mode by Zoltan Szilagyi <zoltans@cs.arizona.edu> - * - * Many modifications, and currently maintained, by - * Philip Blundell <philb@gnu.org> - * Added the Compaq LTE Alan Cox <alan@lxorguk.ukuu.org.uk> - * Added MCA support Adam Fritzler (now deleted) - * - * Note - this driver is experimental still - it has problems on faster - * machines. Someone needs to sit down and go through it line by line with - * a databook... - */ - -/* The EtherExpress 16 is a fairly simple card, based on a shared-memory - * design using the i82586 Ethernet coprocessor. It bears no relationship, - * as far as I know, to the similarly-named "EtherExpress Pro" range. - * - * Historically, Linux support for these cards has been very bad. However, - * things seem to be getting better slowly. - */ - -/* If your card is confused about what sort of interface it has (eg it - * persistently reports "10baseT" when none is fitted), running 'SOFTSET /BART' - * or 'SOFTSET /LISA' from DOS seems to help. - */ - -/* Here's the scoop on memory mapping. - * - * There are three ways to access EtherExpress card memory: either using the - * shared-memory mapping, or using PIO through the dataport, or using PIO - * through the "shadow memory" ports. - * - * The shadow memory system works by having the card map some of its memory - * as follows: - * - * (the low five bits of the SMPTR are ignored) - * - * base+0x4000..400f memory at SMPTR+0..15 - * base+0x8000..800f memory at SMPTR+16..31 - * base+0xc000..c007 dubious stuff (memory at SMPTR+16..23 apparently) - * base+0xc008..c00f memory at 0x0008..0x000f - * - * This last set (the one at c008) is particularly handy because the SCB - * lives at 0x0008. So that set of ports gives us easy random access to data - * in the SCB without having to mess around setting up pointers and the like. - * We always use this method to access the SCB (via the scb_xx() functions). - * - * Dataport access works by aiming the appropriate (read or write) pointer - * at the first address you're interested in, and then reading or writing from - * the dataport. The pointers auto-increment after each transfer. We use - * this for data transfer. - * - * We don't use the shared-memory system because it allegedly doesn't work on - * all cards, and because it's a bit more prone to go wrong (it's one more - * thing to configure...). - */ - -/* Known bugs: - * - * - The card seems to want to give us two interrupts every time something - * happens, where just one would be better. - */ - -/* - * - * Note by Zoltan Szilagyi 10-12-96: - * - * I've succeeded in eliminating the "CU wedged" messages, and hence the - * lockups, which were only occurring with cards running in 8-bit mode ("force - * 8-bit operation" in Intel's SoftSet utility). This version of the driver - * sets the 82586 and the ASIC to 8-bit mode at startup; it also stops the - * CU before submitting a packet for transmission, and then restarts it as soon - * as the process of handing the packet is complete. This is definitely an - * unnecessary slowdown if the card is running in 16-bit mode; therefore one - * should detect 16-bit vs 8-bit mode from the EEPROM settings and act - * accordingly. In 8-bit mode with this bugfix I'm getting about 150 K/s for - * ftp's, which is significantly better than I get in DOS, so the overhead of - * stopping and restarting the CU with each transmit is not prohibitive in - * practice. - * - * Update by David Woodhouse 11/5/99: - * - * I've seen "CU wedged" messages in 16-bit mode, on the Alpha architecture. - * I assume that this is because 16-bit accesses are actually handled as two - * 8-bit accesses. - */ - -#ifdef __alpha__ -#define LOCKUP16 1 -#endif -#ifndef LOCKUP16 -#define LOCKUP16 0 -#endif - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/string.h> -#include <linux/in.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> -#include <linux/jiffies.h> - -#include <asm/io.h> -#include <asm/irq.h> - -#ifndef NET_DEBUG -#define NET_DEBUG 4 -#endif - -#include "eexpress.h" - -#define EEXP_IO_EXTENT 16 - -/* - * Private data declarations - */ - -struct net_local -{ - unsigned long last_tx; /* jiffies when last transmit started */ - unsigned long init_time; /* jiffies when eexp_hw_init586 called */ - unsigned short rx_first; /* first rx buf, same as RX_BUF_START */ - unsigned short rx_last; /* last rx buf */ - unsigned short rx_ptr; /* first rx buf to look at */ - unsigned short tx_head; /* next free tx buf */ - unsigned short tx_reap; /* first in-use tx buf */ - unsigned short tx_tail; /* previous tx buf to tx_head */ - unsigned short tx_link; /* last known-executing tx buf */ - unsigned short last_tx_restart; /* set to tx_link when we - restart the CU */ - unsigned char started; - unsigned short rx_buf_start; - unsigned short rx_buf_end; - unsigned short num_tx_bufs; - unsigned short num_rx_bufs; - unsigned char width; /* 0 for 16bit, 1 for 8bit */ - unsigned char was_promisc; - unsigned char old_mc_count; - spinlock_t lock; -}; - -/* This is the code and data that is downloaded to the EtherExpress card's - * memory at boot time. - */ - -static unsigned short start_code[] = { -/* 0x0000 */ - 0x0001, /* ISCP: busy - cleared after reset */ - 0x0008,0x0000,0x0000, /* offset,address (lo,hi) of SCB */ - - 0x0000,0x0000, /* SCB: status, commands */ - 0x0000,0x0000, /* links to first command block, - first receive descriptor */ - 0x0000,0x0000, /* CRC error, alignment error counts */ - 0x0000,0x0000, /* out of resources, overrun error counts */ - - 0x0000,0x0000, /* pad */ - 0x0000,0x0000, - -/* 0x20 -- start of 82586 CU program */ -#define CONF_LINK 0x20 - 0x0000,Cmd_Config, - 0x0032, /* link to next command */ - 0x080c, /* 12 bytes follow : fifo threshold=8 */ - 0x2e40, /* don't rx bad frames - * SRDY/ARDY => ext. sync. : preamble len=8 - * take addresses from data buffers - * 6 bytes/address - */ - 0x6000, /* default backoff method & priority - * interframe spacing = 0x60 */ - 0xf200, /* slot time=0x200 - * max collision retry = 0xf */ -#define CONF_PROMISC 0x2e - 0x0000, /* no HDLC : normal CRC : enable broadcast - * disable promiscuous/multicast modes */ - 0x003c, /* minimum frame length = 60 octets) */ - - 0x0000,Cmd_SetAddr, - 0x003e, /* link to next command */ -#define CONF_HWADDR 0x38 - 0x0000,0x0000,0x0000, /* hardware address placed here */ - - 0x0000,Cmd_MCast, - 0x0076, /* link to next command */ -#define CONF_NR_MULTICAST 0x44 - 0x0000, /* number of bytes in multicast address(es) */ -#define CONF_MULTICAST 0x46 - 0x0000, 0x0000, 0x0000, /* some addresses */ - 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, - -#define CONF_DIAG_RESULT 0x76 - 0x0000, Cmd_Diag, - 0x007c, /* link to next command */ - - 0x0000,Cmd_TDR|Cmd_INT, - 0x0084, -#define CONF_TDR_RESULT 0x82 - 0x0000, - - 0x0000,Cmd_END|Cmd_Nop, /* end of configure sequence */ - 0x0084 /* dummy link */ -}; - -/* maps irq number to EtherExpress magic value */ -static char irqrmap[] = { 0,0,1,2,3,4,0,0,0,1,5,6,0,0,0,0 }; - -/* - * Prototypes for Linux interface - */ - -static int eexp_open(struct net_device *dev); -static int eexp_close(struct net_device *dev); -static void eexp_timeout(struct net_device *dev); -static netdev_tx_t eexp_xmit(struct sk_buff *buf, - struct net_device *dev); - -static irqreturn_t eexp_irq(int irq, void *dev_addr); -static void eexp_set_multicast(struct net_device *dev); - -/* - * Prototypes for hardware access functions - */ - -static void eexp_hw_rx_pio(struct net_device *dev); -static void eexp_hw_tx_pio(struct net_device *dev, unsigned short *buf, - unsigned short len); -static int eexp_hw_probe(struct net_device *dev,unsigned short ioaddr); -static unsigned short eexp_hw_readeeprom(unsigned short ioaddr, - unsigned char location); - -static unsigned short eexp_hw_lasttxstat(struct net_device *dev); -static void eexp_hw_txrestart(struct net_device *dev); - -static void eexp_hw_txinit (struct net_device *dev); -static void eexp_hw_rxinit (struct net_device *dev); - -static void eexp_hw_init586 (struct net_device *dev); -static void eexp_setup_filter (struct net_device *dev); - -static char *eexp_ifmap[]={"AUI", "BNC", "RJ45"}; -enum eexp_iftype {AUI=0, BNC=1, TPE=2}; - -#define STARTED_RU 2 -#define STARTED_CU 1 - -/* - * Primitive hardware access functions. - */ - -static inline unsigned short scb_status(struct net_device *dev) -{ - return inw(dev->base_addr + 0xc008); -} - -static inline unsigned short scb_rdcmd(struct net_device *dev) -{ - return inw(dev->base_addr + 0xc00a); -} - -static inline void scb_command(struct net_device *dev, unsigned short cmd) -{ - outw(cmd, dev->base_addr + 0xc00a); -} - -static inline void scb_wrcbl(struct net_device *dev, unsigned short val) -{ - outw(val, dev->base_addr + 0xc00c); -} - -static inline void scb_wrrfa(struct net_device *dev, unsigned short val) -{ - outw(val, dev->base_addr + 0xc00e); -} - -static inline void set_loopback(struct net_device *dev) -{ - outb(inb(dev->base_addr + Config) | 2, dev->base_addr + Config); -} - -static inline void clear_loopback(struct net_device *dev) -{ - outb(inb(dev->base_addr + Config) & ~2, dev->base_addr + Config); -} - -static inline unsigned short int SHADOW(short int addr) -{ - addr &= 0x1f; - if (addr > 0xf) addr += 0x3ff0; - return addr + 0x4000; -} - -/* - * Linux interface - */ - -/* - * checks for presence of EtherExpress card - */ - -static int __init do_express_probe(struct net_device *dev) -{ - unsigned short *port; - static unsigned short ports[] = { 0x240,0x300,0x310,0x270,0x320,0x340,0 }; - unsigned short ioaddr = dev->base_addr; - int dev_irq = dev->irq; - int err; - - dev->if_port = 0xff; /* not set */ - - if (ioaddr&0xfe00) { - if (!request_region(ioaddr, EEXP_IO_EXTENT, "EtherExpress")) - return -EBUSY; - err = eexp_hw_probe(dev,ioaddr); - release_region(ioaddr, EEXP_IO_EXTENT); - return err; - } else if (ioaddr) - return -ENXIO; - - for (port=&ports[0] ; *port ; port++ ) - { - unsigned short sum = 0; - int i; - if (!request_region(*port, EEXP_IO_EXTENT, "EtherExpress")) - continue; - for ( i=0 ; i<4 ; i++ ) - { - unsigned short t; - t = inb(*port + ID_PORT); - sum |= (t>>4) << ((t & 0x03)<<2); - } - if (sum==0xbaba && !eexp_hw_probe(dev,*port)) { - release_region(*port, EEXP_IO_EXTENT); - return 0; - } - release_region(*port, EEXP_IO_EXTENT); - dev->irq = dev_irq; - } - return -ENODEV; -} - -#ifndef MODULE -struct net_device * __init express_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); - int err; - - if (!dev) - return ERR_PTR(-ENOMEM); - - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - - err = do_express_probe(dev); - if (!err) - return dev; - free_netdev(dev); - return ERR_PTR(err); -} -#endif - -/* - * open and initialize the adapter, ready for use - */ - -static int eexp_open(struct net_device *dev) -{ - int ret; - unsigned short ioaddr = dev->base_addr; - struct net_local *lp = netdev_priv(dev); - -#if NET_DEBUG > 6 - printk(KERN_DEBUG "%s: eexp_open()\n", dev->name); -#endif - - if (!dev->irq || !irqrmap[dev->irq]) - return -ENXIO; - - ret = request_irq(dev->irq, eexp_irq, 0, dev->name, dev); - if (ret) - return ret; - - if (!request_region(ioaddr, EEXP_IO_EXTENT, "EtherExpress")) { - printk(KERN_WARNING "EtherExpress io port %x, is busy.\n" - , ioaddr); - goto err_out1; - } - if (!request_region(ioaddr+0x4000, EEXP_IO_EXTENT, "EtherExpress shadow")) { - printk(KERN_WARNING "EtherExpress io port %x, is busy.\n" - , ioaddr+0x4000); - goto err_out2; - } - if (!request_region(ioaddr+0x8000, EEXP_IO_EXTENT, "EtherExpress shadow")) { - printk(KERN_WARNING "EtherExpress io port %x, is busy.\n" - , ioaddr+0x8000); - goto err_out3; - } - if (!request_region(ioaddr+0xc000, EEXP_IO_EXTENT, "EtherExpress shadow")) { - printk(KERN_WARNING "EtherExpress io port %x, is busy.\n" - , ioaddr+0xc000); - goto err_out4; - } - - if (lp->width) { - printk("%s: forcing ASIC to 8-bit mode\n", dev->name); - outb(inb(dev->base_addr+Config)&~4, dev->base_addr+Config); - } - - eexp_hw_init586(dev); - netif_start_queue(dev); -#if NET_DEBUG > 6 - printk(KERN_DEBUG "%s: leaving eexp_open()\n", dev->name); -#endif - return 0; - - err_out4: - release_region(ioaddr+0x8000, EEXP_IO_EXTENT); - err_out3: - release_region(ioaddr+0x4000, EEXP_IO_EXTENT); - err_out2: - release_region(ioaddr, EEXP_IO_EXTENT); - err_out1: - free_irq(dev->irq, dev); - return -EBUSY; -} - -/* - * close and disable the interface, leaving the 586 in reset. - */ - -static int eexp_close(struct net_device *dev) -{ - unsigned short ioaddr = dev->base_addr; - struct net_local *lp = netdev_priv(dev); - - int irq = dev->irq; - - netif_stop_queue(dev); - - outb(SIRQ_dis|irqrmap[irq],ioaddr+SET_IRQ); - lp->started = 0; - scb_command(dev, SCB_CUsuspend|SCB_RUsuspend); - outb(0,ioaddr+SIGNAL_CA); - free_irq(irq,dev); - outb(i586_RST,ioaddr+EEPROM_Ctrl); - release_region(ioaddr, EEXP_IO_EXTENT); - release_region(ioaddr+0x4000, 16); - release_region(ioaddr+0x8000, 16); - release_region(ioaddr+0xc000, 16); - - return 0; -} - -/* - * This gets called when a higher level thinks we are broken. Check that - * nothing has become jammed in the CU. - */ - -static void unstick_cu(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short ioaddr = dev->base_addr; - - if (lp->started) - { - if (time_after(jiffies, dev_trans_start(dev) + HZ/2)) - { - if (lp->tx_link==lp->last_tx_restart) - { - unsigned short boguscount=200,rsst; - printk(KERN_WARNING "%s: Retransmit timed out, status %04x, resetting...\n", - dev->name, scb_status(dev)); - eexp_hw_txinit(dev); - lp->last_tx_restart = 0; - scb_wrcbl(dev, lp->tx_link); - scb_command(dev, SCB_CUstart); - outb(0,ioaddr+SIGNAL_CA); - while (!SCB_complete(rsst=scb_status(dev))) - { - if (!--boguscount) - { - boguscount=200; - printk(KERN_WARNING "%s: Reset timed out status %04x, retrying...\n", - dev->name,rsst); - scb_wrcbl(dev, lp->tx_link); - scb_command(dev, SCB_CUstart); - outb(0,ioaddr+SIGNAL_CA); - } - } - netif_wake_queue(dev); - } - else - { - unsigned short status = scb_status(dev); - if (SCB_CUdead(status)) - { - unsigned short txstatus = eexp_hw_lasttxstat(dev); - printk(KERN_WARNING "%s: Transmit timed out, CU not active status %04x %04x, restarting...\n", - dev->name, status, txstatus); - eexp_hw_txrestart(dev); - } - else - { - unsigned short txstatus = eexp_hw_lasttxstat(dev); - if (netif_queue_stopped(dev) && !txstatus) - { - printk(KERN_WARNING "%s: CU wedged, status %04x %04x, resetting...\n", - dev->name,status,txstatus); - eexp_hw_init586(dev); - netif_wake_queue(dev); - } - else - { - printk(KERN_WARNING "%s: transmit timed out\n", dev->name); - } - } - } - } - } - else - { - if (time_after(jiffies, lp->init_time + 10)) - { - unsigned short status = scb_status(dev); - printk(KERN_WARNING "%s: i82586 startup timed out, status %04x, resetting...\n", - dev->name, status); - eexp_hw_init586(dev); - netif_wake_queue(dev); - } - } -} - -static void eexp_timeout(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); -#ifdef CONFIG_SMP - unsigned long flags; -#endif - int status; - - disable_irq(dev->irq); - - /* - * Best would be to use synchronize_irq(); spin_lock() here - * lets make it work first.. - */ - -#ifdef CONFIG_SMP - spin_lock_irqsave(&lp->lock, flags); -#endif - - status = scb_status(dev); - unstick_cu(dev); - printk(KERN_INFO "%s: transmit timed out, %s?\n", dev->name, - (SCB_complete(status)?"lost interrupt": - "board on fire")); - dev->stats.tx_errors++; - lp->last_tx = jiffies; - if (!SCB_complete(status)) { - scb_command(dev, SCB_CUabort); - outb(0,dev->base_addr+SIGNAL_CA); - } - netif_wake_queue(dev); -#ifdef CONFIG_SMP - spin_unlock_irqrestore(&lp->lock, flags); -#endif -} - -/* - * Called to transmit a packet, or to allow us to right ourselves - * if the kernel thinks we've died. - */ -static netdev_tx_t eexp_xmit(struct sk_buff *buf, struct net_device *dev) -{ - short length = buf->len; -#ifdef CONFIG_SMP - struct net_local *lp = netdev_priv(dev); - unsigned long flags; -#endif - -#if NET_DEBUG > 6 - printk(KERN_DEBUG "%s: eexp_xmit()\n", dev->name); -#endif - - if (buf->len < ETH_ZLEN) { - if (skb_padto(buf, ETH_ZLEN)) - return NETDEV_TX_OK; - length = ETH_ZLEN; - } - - disable_irq(dev->irq); - - /* - * Best would be to use synchronize_irq(); spin_lock() here - * lets make it work first.. - */ - -#ifdef CONFIG_SMP - spin_lock_irqsave(&lp->lock, flags); -#endif - - { - unsigned short *data = (unsigned short *)buf->data; - - dev->stats.tx_bytes += length; - - eexp_hw_tx_pio(dev,data,length); - } - dev_kfree_skb(buf); -#ifdef CONFIG_SMP - spin_unlock_irqrestore(&lp->lock, flags); -#endif - enable_irq(dev->irq); - return NETDEV_TX_OK; -} - -/* - * Handle an EtherExpress interrupt - * If we've finished initializing, start the RU and CU up. - * If we've already started, reap tx buffers, handle any received packets, - * check to make sure we've not become wedged. - */ - -static unsigned short eexp_start_irq(struct net_device *dev, - unsigned short status) -{ - unsigned short ack_cmd = SCB_ack(status); - struct net_local *lp = netdev_priv(dev); - unsigned short ioaddr = dev->base_addr; - if ((dev->flags & IFF_UP) && !(lp->started & STARTED_CU)) { - short diag_status, tdr_status; - while (SCB_CUstat(status)==2) - status = scb_status(dev); -#if NET_DEBUG > 4 - printk("%s: CU went non-active (status %04x)\n", - dev->name, status); -#endif - - outw(CONF_DIAG_RESULT & ~31, ioaddr + SM_PTR); - diag_status = inw(ioaddr + SHADOW(CONF_DIAG_RESULT)); - if (diag_status & 1<<11) { - printk(KERN_WARNING "%s: 82586 failed self-test\n", - dev->name); - } else if (!(diag_status & 1<<13)) { - printk(KERN_WARNING "%s: 82586 self-test failed to complete\n", dev->name); - } - - outw(CONF_TDR_RESULT & ~31, ioaddr + SM_PTR); - tdr_status = inw(ioaddr + SHADOW(CONF_TDR_RESULT)); - if (tdr_status & (TDR_SHORT|TDR_OPEN)) { - printk(KERN_WARNING "%s: TDR reports cable %s at %d tick%s\n", dev->name, (tdr_status & TDR_SHORT)?"short":"broken", tdr_status & TDR_TIME, ((tdr_status & TDR_TIME) != 1) ? "s" : ""); - } - else if (tdr_status & TDR_XCVRPROBLEM) { - printk(KERN_WARNING "%s: TDR reports transceiver problem\n", dev->name); - } - else if (tdr_status & TDR_LINKOK) { -#if NET_DEBUG > 4 - printk(KERN_DEBUG "%s: TDR reports link OK\n", dev->name); -#endif - } else { - printk("%s: TDR is ga-ga (status %04x)\n", dev->name, - tdr_status); - } - - lp->started |= STARTED_CU; - scb_wrcbl(dev, lp->tx_link); - /* if the RU isn't running, start it now */ - if (!(lp->started & STARTED_RU)) { - ack_cmd |= SCB_RUstart; - scb_wrrfa(dev, lp->rx_buf_start); - lp->rx_ptr = lp->rx_buf_start; - lp->started |= STARTED_RU; - } - ack_cmd |= SCB_CUstart | 0x2000; - } - - if ((dev->flags & IFF_UP) && !(lp->started & STARTED_RU) && SCB_RUstat(status)==4) - lp->started|=STARTED_RU; - - return ack_cmd; -} - -static void eexp_cmd_clear(struct net_device *dev) -{ - unsigned long int oldtime = jiffies; - while (scb_rdcmd(dev) && (time_before(jiffies, oldtime + 10))); - if (scb_rdcmd(dev)) { - printk("%s: command didn't clear\n", dev->name); - } -} - -static irqreturn_t eexp_irq(int dummy, void *dev_info) -{ - struct net_device *dev = dev_info; - struct net_local *lp; - unsigned short ioaddr,status,ack_cmd; - unsigned short old_read_ptr, old_write_ptr; - - lp = netdev_priv(dev); - ioaddr = dev->base_addr; - - spin_lock(&lp->lock); - - old_read_ptr = inw(ioaddr+READ_PTR); - old_write_ptr = inw(ioaddr+WRITE_PTR); - - outb(SIRQ_dis|irqrmap[dev->irq], ioaddr+SET_IRQ); - - status = scb_status(dev); - -#if NET_DEBUG > 4 - printk(KERN_DEBUG "%s: interrupt (status %x)\n", dev->name, status); -#endif - - if (lp->started == (STARTED_CU | STARTED_RU)) { - - do { - eexp_cmd_clear(dev); - - ack_cmd = SCB_ack(status); - scb_command(dev, ack_cmd); - outb(0,ioaddr+SIGNAL_CA); - - eexp_cmd_clear(dev); - - if (SCB_complete(status)) { - if (!eexp_hw_lasttxstat(dev)) { - printk("%s: tx interrupt but no status\n", dev->name); - } - } - - if (SCB_rxdframe(status)) - eexp_hw_rx_pio(dev); - - status = scb_status(dev); - } while (status & 0xc000); - - if (SCB_RUdead(status)) - { - printk(KERN_WARNING "%s: RU stopped: status %04x\n", - dev->name,status); -#if 0 - printk(KERN_WARNING "%s: cur_rfd=%04x, cur_rbd=%04x\n", dev->name, lp->cur_rfd, lp->cur_rbd); - outw(lp->cur_rfd, ioaddr+READ_PTR); - printk(KERN_WARNING "%s: [%04x]\n", dev->name, inw(ioaddr+DATAPORT)); - outw(lp->cur_rfd+6, ioaddr+READ_PTR); - printk(KERN_WARNING "%s: rbd is %04x\n", dev->name, rbd= inw(ioaddr+DATAPORT)); - outw(rbd, ioaddr+READ_PTR); - printk(KERN_WARNING "%s: [%04x %04x] ", dev->name, inw(ioaddr+DATAPORT), inw(ioaddr+DATAPORT)); - outw(rbd+8, ioaddr+READ_PTR); - printk("[%04x]\n", inw(ioaddr+DATAPORT)); -#endif - dev->stats.rx_errors++; -#if 1 - eexp_hw_rxinit(dev); -#else - lp->cur_rfd = lp->first_rfd; -#endif - scb_wrrfa(dev, lp->rx_buf_start); - scb_command(dev, SCB_RUstart); - outb(0,ioaddr+SIGNAL_CA); - } - } else { - if (status & 0x8000) - ack_cmd = eexp_start_irq(dev, status); - else - ack_cmd = SCB_ack(status); - scb_command(dev, ack_cmd); - outb(0,ioaddr+SIGNAL_CA); - } - - eexp_cmd_clear(dev); - - outb(SIRQ_en|irqrmap[dev->irq], ioaddr+SET_IRQ); - -#if NET_DEBUG > 6 - printk("%s: leaving eexp_irq()\n", dev->name); -#endif - outw(old_read_ptr, ioaddr+READ_PTR); - outw(old_write_ptr, ioaddr+WRITE_PTR); - - spin_unlock(&lp->lock); - return IRQ_HANDLED; -} - -/* - * Hardware access functions - */ - -/* - * Set the cable type to use. - */ - -static void eexp_hw_set_interface(struct net_device *dev) -{ - unsigned char oldval = inb(dev->base_addr + 0x300e); - oldval &= ~0x82; - switch (dev->if_port) { - case TPE: - oldval |= 0x2; - case BNC: - oldval |= 0x80; - break; - } - outb(oldval, dev->base_addr+0x300e); - mdelay(20); -} - -/* - * Check all the receive buffers, and hand any received packets - * to the upper levels. Basic sanity check on each frame - * descriptor, though we don't bother trying to fix broken ones. - */ - -static void eexp_hw_rx_pio(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short rx_block = lp->rx_ptr; - unsigned short boguscount = lp->num_rx_bufs; - unsigned short ioaddr = dev->base_addr; - unsigned short status; - -#if NET_DEBUG > 6 - printk(KERN_DEBUG "%s: eexp_hw_rx()\n", dev->name); -#endif - - do { - unsigned short rfd_cmd, rx_next, pbuf, pkt_len; - - outw(rx_block, ioaddr + READ_PTR); - status = inw(ioaddr + DATAPORT); - - if (FD_Done(status)) - { - rfd_cmd = inw(ioaddr + DATAPORT); - rx_next = inw(ioaddr + DATAPORT); - pbuf = inw(ioaddr + DATAPORT); - - outw(pbuf, ioaddr + READ_PTR); - pkt_len = inw(ioaddr + DATAPORT); - - if (rfd_cmd!=0x0000) - { - printk(KERN_WARNING "%s: rfd_cmd not zero:0x%04x\n", - dev->name, rfd_cmd); - continue; - } - else if (pbuf!=rx_block+0x16) - { - printk(KERN_WARNING "%s: rfd and rbd out of sync 0x%04x 0x%04x\n", - dev->name, rx_block+0x16, pbuf); - continue; - } - else if ((pkt_len & 0xc000)!=0xc000) - { - printk(KERN_WARNING "%s: EOF or F not set on received buffer (%04x)\n", - dev->name, pkt_len & 0xc000); - continue; - } - else if (!FD_OK(status)) - { - dev->stats.rx_errors++; - if (FD_CRC(status)) - dev->stats.rx_crc_errors++; - if (FD_Align(status)) - dev->stats.rx_frame_errors++; - if (FD_Resrc(status)) - dev->stats.rx_fifo_errors++; - if (FD_DMA(status)) - dev->stats.rx_over_errors++; - if (FD_Short(status)) - dev->stats.rx_length_errors++; - } - else - { - struct sk_buff *skb; - pkt_len &= 0x3fff; - skb = netdev_alloc_skb(dev, pkt_len + 16); - if (skb == NULL) - { - printk(KERN_WARNING "%s: Memory squeeze, dropping packet\n",dev->name); - dev->stats.rx_dropped++; - break; - } - skb_reserve(skb, 2); - outw(pbuf+10, ioaddr+READ_PTR); - insw(ioaddr+DATAPORT, skb_put(skb,pkt_len),(pkt_len+1)>>1); - skb->protocol = eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; - } - outw(rx_block, ioaddr+WRITE_PTR); - outw(0, ioaddr+DATAPORT); - outw(0, ioaddr+DATAPORT); - rx_block = rx_next; - } - } while (FD_Done(status) && boguscount--); - lp->rx_ptr = rx_block; -} - -/* - * Hand a packet to the card for transmission - * If we get here, we MUST have already checked - * to make sure there is room in the transmit - * buffer region. - */ - -static void eexp_hw_tx_pio(struct net_device *dev, unsigned short *buf, - unsigned short len) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short ioaddr = dev->base_addr; - - if (LOCKUP16 || lp->width) { - /* Stop the CU so that there is no chance that it - jumps off to a bogus address while we are writing the - pointer to the next transmit packet in 8-bit mode -- - this eliminates the "CU wedged" errors in 8-bit mode. - (Zoltan Szilagyi 10-12-96) */ - scb_command(dev, SCB_CUsuspend); - outw(0xFFFF, ioaddr+SIGNAL_CA); - } - - outw(lp->tx_head, ioaddr + WRITE_PTR); - - outw(0x0000, ioaddr + DATAPORT); - outw(Cmd_INT|Cmd_Xmit, ioaddr + DATAPORT); - outw(lp->tx_head+0x08, ioaddr + DATAPORT); - outw(lp->tx_head+0x0e, ioaddr + DATAPORT); - - outw(0x0000, ioaddr + DATAPORT); - outw(0x0000, ioaddr + DATAPORT); - outw(lp->tx_head+0x08, ioaddr + DATAPORT); - - outw(0x8000|len, ioaddr + DATAPORT); - outw(-1, ioaddr + DATAPORT); - outw(lp->tx_head+0x16, ioaddr + DATAPORT); - outw(0, ioaddr + DATAPORT); - - outsw(ioaddr + DATAPORT, buf, (len+1)>>1); - - outw(lp->tx_tail+0xc, ioaddr + WRITE_PTR); - outw(lp->tx_head, ioaddr + DATAPORT); - - dev->trans_start = jiffies; - lp->tx_tail = lp->tx_head; - if (lp->tx_head==TX_BUF_START+((lp->num_tx_bufs-1)*TX_BUF_SIZE)) - lp->tx_head = TX_BUF_START; - else - lp->tx_head += TX_BUF_SIZE; - if (lp->tx_head != lp->tx_reap) - netif_wake_queue(dev); - - if (LOCKUP16 || lp->width) { - /* Restart the CU so that the packet can actually - be transmitted. (Zoltan Szilagyi 10-12-96) */ - scb_command(dev, SCB_CUresume); - outw(0xFFFF, ioaddr+SIGNAL_CA); - } - - dev->stats.tx_packets++; - lp->last_tx = jiffies; -} - -static const struct net_device_ops eexp_netdev_ops = { - .ndo_open = eexp_open, - .ndo_stop = eexp_close, - .ndo_start_xmit = eexp_xmit, - .ndo_set_rx_mode = eexp_set_multicast, - .ndo_tx_timeout = eexp_timeout, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -/* - * Sanity check the suspected EtherExpress card - * Read hardware address, reset card, size memory and initialize buffer - * memory pointers. These are held in netdev_priv(), in case someone has more - * than one card in a machine. - */ - -static int __init eexp_hw_probe(struct net_device *dev, unsigned short ioaddr) -{ - unsigned short hw_addr[3]; - unsigned char buswidth; - unsigned int memory_size; - int i; - unsigned short xsum = 0; - struct net_local *lp = netdev_priv(dev); - - printk("%s: EtherExpress 16 at %#x ",dev->name,ioaddr); - - outb(ASIC_RST, ioaddr+EEPROM_Ctrl); - outb(0, ioaddr+EEPROM_Ctrl); - udelay(500); - outb(i586_RST, ioaddr+EEPROM_Ctrl); - - hw_addr[0] = eexp_hw_readeeprom(ioaddr,2); - hw_addr[1] = eexp_hw_readeeprom(ioaddr,3); - hw_addr[2] = eexp_hw_readeeprom(ioaddr,4); - - /* Standard Address or Compaq LTE Address */ - if (!((hw_addr[2]==0x00aa && ((hw_addr[1] & 0xff00)==0x0000)) || - (hw_addr[2]==0x0080 && ((hw_addr[1] & 0xff00)==0x5F00)))) - { - printk(" rejected: invalid address %04x%04x%04x\n", - hw_addr[2],hw_addr[1],hw_addr[0]); - return -ENODEV; - } - - /* Calculate the EEPROM checksum. Carry on anyway if it's bad, - * though. - */ - for (i = 0; i < 64; i++) - xsum += eexp_hw_readeeprom(ioaddr, i); - if (xsum != 0xbaba) - printk(" (bad EEPROM xsum 0x%02x)", xsum); - - dev->base_addr = ioaddr; - for ( i=0 ; i<6 ; i++ ) - dev->dev_addr[i] = ((unsigned char *)hw_addr)[5-i]; - - { - static const char irqmap[] = { 0, 9, 3, 4, 5, 10, 11, 0 }; - unsigned short setupval = eexp_hw_readeeprom(ioaddr,0); - - /* Use the IRQ from EEPROM if none was given */ - if (!dev->irq) - dev->irq = irqmap[setupval>>13]; - - if (dev->if_port == 0xff) { - dev->if_port = !(setupval & 0x1000) ? AUI : - eexp_hw_readeeprom(ioaddr,5) & 0x1 ? TPE : BNC; - } - - buswidth = !((setupval & 0x400) >> 10); - } - - memset(lp, 0, sizeof(struct net_local)); - spin_lock_init(&lp->lock); - - printk("(IRQ %d, %s connector, %d-bit bus", dev->irq, - eexp_ifmap[dev->if_port], buswidth?8:16); - - if (!request_region(dev->base_addr + 0x300e, 1, "EtherExpress")) - return -EBUSY; - - eexp_hw_set_interface(dev); - - release_region(dev->base_addr + 0x300e, 1); - - /* Find out how much RAM we have on the card */ - outw(0, dev->base_addr + WRITE_PTR); - for (i = 0; i < 32768; i++) - outw(0, dev->base_addr + DATAPORT); - - for (memory_size = 0; memory_size < 64; memory_size++) - { - outw(memory_size<<10, dev->base_addr + READ_PTR); - if (inw(dev->base_addr+DATAPORT)) - break; - outw(memory_size<<10, dev->base_addr + WRITE_PTR); - outw(memory_size | 0x5000, dev->base_addr+DATAPORT); - outw(memory_size<<10, dev->base_addr + READ_PTR); - if (inw(dev->base_addr+DATAPORT) != (memory_size | 0x5000)) - break; - } - - /* Sort out the number of buffers. We may have 16, 32, 48 or 64k - * of RAM to play with. - */ - lp->num_tx_bufs = 4; - lp->rx_buf_end = 0x3ff6; - switch (memory_size) - { - case 64: - lp->rx_buf_end += 0x4000; - case 48: - lp->num_tx_bufs += 4; - lp->rx_buf_end += 0x4000; - case 32: - lp->rx_buf_end += 0x4000; - case 16: - printk(", %dk RAM)\n", memory_size); - break; - default: - printk(") bad memory size (%dk).\n", memory_size); - return -ENODEV; - break; - } - - lp->rx_buf_start = TX_BUF_START + (lp->num_tx_bufs*TX_BUF_SIZE); - lp->width = buswidth; - - dev->netdev_ops = &eexp_netdev_ops; - dev->watchdog_timeo = 2*HZ; - - return register_netdev(dev); -} - -/* - * Read a word from the EtherExpress on-board serial EEPROM. - * The EEPROM contains 64 words of 16 bits. - */ -static unsigned short __init eexp_hw_readeeprom(unsigned short ioaddr, - unsigned char location) -{ - unsigned short cmd = 0x180|(location&0x7f); - unsigned short rval = 0,wval = EC_CS|i586_RST; - int i; - - outb(EC_CS|i586_RST,ioaddr+EEPROM_Ctrl); - for (i=0x100 ; i ; i>>=1 ) - { - if (cmd&i) - wval |= EC_Wr; - else - wval &= ~EC_Wr; - - outb(wval,ioaddr+EEPROM_Ctrl); - outb(wval|EC_Clk,ioaddr+EEPROM_Ctrl); - eeprom_delay(); - outb(wval,ioaddr+EEPROM_Ctrl); - eeprom_delay(); - } - wval &= ~EC_Wr; - outb(wval,ioaddr+EEPROM_Ctrl); - for (i=0x8000 ; i ; i>>=1 ) - { - outb(wval|EC_Clk,ioaddr+EEPROM_Ctrl); - eeprom_delay(); - if (inb(ioaddr+EEPROM_Ctrl)&EC_Rd) - rval |= i; - outb(wval,ioaddr+EEPROM_Ctrl); - eeprom_delay(); - } - wval &= ~EC_CS; - outb(wval|EC_Clk,ioaddr+EEPROM_Ctrl); - eeprom_delay(); - outb(wval,ioaddr+EEPROM_Ctrl); - eeprom_delay(); - return rval; -} - -/* - * Reap tx buffers and return last transmit status. - * if ==0 then either: - * a) we're not transmitting anything, so why are we here? - * b) we've died. - * otherwise, Stat_Busy(return) means we've still got some packets - * to transmit, Stat_Done(return) means our buffers should be empty - * again - */ - -static unsigned short eexp_hw_lasttxstat(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short tx_block = lp->tx_reap; - unsigned short status; - - if (!netif_queue_stopped(dev) && lp->tx_head==lp->tx_reap) - return 0x0000; - - do - { - outw(tx_block & ~31, dev->base_addr + SM_PTR); - status = inw(dev->base_addr + SHADOW(tx_block)); - if (!Stat_Done(status)) - { - lp->tx_link = tx_block; - return status; - } - else - { - lp->last_tx_restart = 0; - dev->stats.collisions += Stat_NoColl(status); - if (!Stat_OK(status)) - { - char *whatsup = NULL; - dev->stats.tx_errors++; - if (Stat_Abort(status)) - dev->stats.tx_aborted_errors++; - if (Stat_TNoCar(status)) { - whatsup = "aborted, no carrier"; - dev->stats.tx_carrier_errors++; - } - if (Stat_TNoCTS(status)) { - whatsup = "aborted, lost CTS"; - dev->stats.tx_carrier_errors++; - } - if (Stat_TNoDMA(status)) { - whatsup = "FIFO underran"; - dev->stats.tx_fifo_errors++; - } - if (Stat_TXColl(status)) { - whatsup = "aborted, too many collisions"; - dev->stats.tx_aborted_errors++; - } - if (whatsup) - printk(KERN_INFO "%s: transmit %s\n", - dev->name, whatsup); - } - else - dev->stats.tx_packets++; - } - if (tx_block == TX_BUF_START+((lp->num_tx_bufs-1)*TX_BUF_SIZE)) - lp->tx_reap = tx_block = TX_BUF_START; - else - lp->tx_reap = tx_block += TX_BUF_SIZE; - netif_wake_queue(dev); - } - while (lp->tx_reap != lp->tx_head); - - lp->tx_link = lp->tx_tail + 0x08; - - return status; -} - -/* - * This should never happen. It is called when some higher routine detects - * that the CU has stopped, to try to restart it from the last packet we knew - * we were working on, or the idle loop if we had finished for the time. - */ - -static void eexp_hw_txrestart(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short ioaddr = dev->base_addr; - - lp->last_tx_restart = lp->tx_link; - scb_wrcbl(dev, lp->tx_link); - scb_command(dev, SCB_CUstart); - outb(0,ioaddr+SIGNAL_CA); - - { - unsigned short boguscount=50,failcount=5; - while (!scb_status(dev)) - { - if (!--boguscount) - { - if (--failcount) - { - printk(KERN_WARNING "%s: CU start timed out, status %04x, cmd %04x\n", dev->name, scb_status(dev), scb_rdcmd(dev)); - scb_wrcbl(dev, lp->tx_link); - scb_command(dev, SCB_CUstart); - outb(0,ioaddr+SIGNAL_CA); - boguscount = 100; - } - else - { - printk(KERN_WARNING "%s: Failed to restart CU, resetting board...\n",dev->name); - eexp_hw_init586(dev); - netif_wake_queue(dev); - return; - } - } - } - } -} - -/* - * Writes down the list of transmit buffers into card memory. Each - * entry consists of an 82586 transmit command, followed by a jump - * pointing to itself. When we want to transmit a packet, we write - * the data into the appropriate transmit buffer and then modify the - * preceding jump to point at the new transmit command. This means that - * the 586 command unit is continuously active. - */ - -static void eexp_hw_txinit(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short tx_block = TX_BUF_START; - unsigned short curtbuf; - unsigned short ioaddr = dev->base_addr; - - for ( curtbuf=0 ; curtbuf<lp->num_tx_bufs ; curtbuf++ ) - { - outw(tx_block, ioaddr + WRITE_PTR); - - outw(0x0000, ioaddr + DATAPORT); - outw(Cmd_INT|Cmd_Xmit, ioaddr + DATAPORT); - outw(tx_block+0x08, ioaddr + DATAPORT); - outw(tx_block+0x0e, ioaddr + DATAPORT); - - outw(0x0000, ioaddr + DATAPORT); - outw(0x0000, ioaddr + DATAPORT); - outw(tx_block+0x08, ioaddr + DATAPORT); - - outw(0x8000, ioaddr + DATAPORT); - outw(-1, ioaddr + DATAPORT); - outw(tx_block+0x16, ioaddr + DATAPORT); - outw(0x0000, ioaddr + DATAPORT); - - tx_block += TX_BUF_SIZE; - } - lp->tx_head = TX_BUF_START; - lp->tx_reap = TX_BUF_START; - lp->tx_tail = tx_block - TX_BUF_SIZE; - lp->tx_link = lp->tx_tail + 0x08; - lp->rx_buf_start = tx_block; - -} - -/* - * Write the circular list of receive buffer descriptors to card memory. - * The end of the list isn't marked, which means that the 82586 receive - * unit will loop until buffers become available (this avoids it giving us - * "out of resources" messages). - */ - -static void eexp_hw_rxinit(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short rx_block = lp->rx_buf_start; - unsigned short ioaddr = dev->base_addr; - - lp->num_rx_bufs = 0; - lp->rx_first = lp->rx_ptr = rx_block; - do - { - lp->num_rx_bufs++; - - outw(rx_block, ioaddr + WRITE_PTR); - - outw(0, ioaddr + DATAPORT); outw(0, ioaddr+DATAPORT); - outw(rx_block + RX_BUF_SIZE, ioaddr+DATAPORT); - outw(0xffff, ioaddr+DATAPORT); - - outw(0x0000, ioaddr+DATAPORT); - outw(0xdead, ioaddr+DATAPORT); - outw(0xdead, ioaddr+DATAPORT); - outw(0xdead, ioaddr+DATAPORT); - outw(0xdead, ioaddr+DATAPORT); - outw(0xdead, ioaddr+DATAPORT); - outw(0xdead, ioaddr+DATAPORT); - - outw(0x0000, ioaddr+DATAPORT); - outw(rx_block + RX_BUF_SIZE + 0x16, ioaddr+DATAPORT); - outw(rx_block + 0x20, ioaddr+DATAPORT); - outw(0, ioaddr+DATAPORT); - outw(RX_BUF_SIZE-0x20, ioaddr+DATAPORT); - - lp->rx_last = rx_block; - rx_block += RX_BUF_SIZE; - } while (rx_block <= lp->rx_buf_end-RX_BUF_SIZE); - - - /* Make first Rx frame descriptor point to first Rx buffer - descriptor */ - outw(lp->rx_first + 6, ioaddr+WRITE_PTR); - outw(lp->rx_first + 0x16, ioaddr+DATAPORT); - - /* Close Rx frame descriptor ring */ - outw(lp->rx_last + 4, ioaddr+WRITE_PTR); - outw(lp->rx_first, ioaddr+DATAPORT); - - /* Close Rx buffer descriptor ring */ - outw(lp->rx_last + 0x16 + 2, ioaddr+WRITE_PTR); - outw(lp->rx_first + 0x16, ioaddr+DATAPORT); - -} - -/* - * Un-reset the 586, and start the configuration sequence. We don't wait for - * this to finish, but allow the interrupt handler to start the CU and RU for - * us. We can't start the receive/transmission system up before we know that - * the hardware is configured correctly. - */ - -static void eexp_hw_init586(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned short ioaddr = dev->base_addr; - int i; - -#if NET_DEBUG > 6 - printk("%s: eexp_hw_init586()\n", dev->name); -#endif - - lp->started = 0; - - set_loopback(dev); - - outb(SIRQ_dis|irqrmap[dev->irq],ioaddr+SET_IRQ); - - /* Download the startup code */ - outw(lp->rx_buf_end & ~31, ioaddr + SM_PTR); - outw(lp->width?0x0001:0x0000, ioaddr + 0x8006); - outw(0x0000, ioaddr + 0x8008); - outw(0x0000, ioaddr + 0x800a); - outw(0x0000, ioaddr + 0x800c); - outw(0x0000, ioaddr + 0x800e); - - for (i = 0; i < ARRAY_SIZE(start_code) * 2; i+=32) { - int j; - outw(i, ioaddr + SM_PTR); - for (j = 0; j < 16 && (i+j)/2 < ARRAY_SIZE(start_code); j+=2) - outw(start_code[(i+j)/2], - ioaddr+0x4000+j); - for (j = 0; j < 16 && (i+j+16)/2 < ARRAY_SIZE(start_code); j+=2) - outw(start_code[(i+j+16)/2], - ioaddr+0x8000+j); - } - - /* Do we want promiscuous mode or multicast? */ - outw(CONF_PROMISC & ~31, ioaddr+SM_PTR); - i = inw(ioaddr+SHADOW(CONF_PROMISC)); - outw((dev->flags & IFF_PROMISC)?(i|1):(i & ~1), - ioaddr+SHADOW(CONF_PROMISC)); - lp->was_promisc = dev->flags & IFF_PROMISC; -#if 0 - eexp_setup_filter(dev); -#endif - - /* Write our hardware address */ - outw(CONF_HWADDR & ~31, ioaddr+SM_PTR); - outw(((unsigned short *)dev->dev_addr)[0], ioaddr+SHADOW(CONF_HWADDR)); - outw(((unsigned short *)dev->dev_addr)[1], - ioaddr+SHADOW(CONF_HWADDR+2)); - outw(((unsigned short *)dev->dev_addr)[2], - ioaddr+SHADOW(CONF_HWADDR+4)); - - eexp_hw_txinit(dev); - eexp_hw_rxinit(dev); - - outb(0,ioaddr+EEPROM_Ctrl); - mdelay(5); - - scb_command(dev, 0xf000); - outb(0,ioaddr+SIGNAL_CA); - - outw(0, ioaddr+SM_PTR); - - { - unsigned short rboguscount=50,rfailcount=5; - while (inw(ioaddr+0x4000)) - { - if (!--rboguscount) - { - printk(KERN_WARNING "%s: i82586 reset timed out, kicking...\n", - dev->name); - scb_command(dev, 0); - outb(0,ioaddr+SIGNAL_CA); - rboguscount = 100; - if (!--rfailcount) - { - printk(KERN_WARNING "%s: i82586 not responding, giving up.\n", - dev->name); - return; - } - } - } - } - - scb_wrcbl(dev, CONF_LINK); - scb_command(dev, 0xf000|SCB_CUstart); - outb(0,ioaddr+SIGNAL_CA); - - { - unsigned short iboguscount=50,ifailcount=5; - while (!scb_status(dev)) - { - if (!--iboguscount) - { - if (--ifailcount) - { - printk(KERN_WARNING "%s: i82586 initialization timed out, status %04x, cmd %04x\n", - dev->name, scb_status(dev), scb_rdcmd(dev)); - scb_wrcbl(dev, CONF_LINK); - scb_command(dev, 0xf000|SCB_CUstart); - outb(0,ioaddr+SIGNAL_CA); - iboguscount = 100; - } - else - { - printk(KERN_WARNING "%s: Failed to initialize i82586, giving up.\n",dev->name); - return; - } - } - } - } - - clear_loopback(dev); - outb(SIRQ_en|irqrmap[dev->irq],ioaddr+SET_IRQ); - - lp->init_time = jiffies; -#if NET_DEBUG > 6 - printk("%s: leaving eexp_hw_init586()\n", dev->name); -#endif -} - -static void eexp_setup_filter(struct net_device *dev) -{ - struct netdev_hw_addr *ha; - unsigned short ioaddr = dev->base_addr; - int count = netdev_mc_count(dev); - int i; - if (count > 8) { - printk(KERN_INFO "%s: too many multicast addresses (%d)\n", - dev->name, count); - count = 8; - } - - outw(CONF_NR_MULTICAST & ~31, ioaddr+SM_PTR); - outw(6*count, ioaddr+SHADOW(CONF_NR_MULTICAST)); - i = 0; - netdev_for_each_mc_addr(ha, dev) { - unsigned short *data = (unsigned short *) ha->addr; - - if (i == count) - break; - outw((CONF_MULTICAST+(6*i)) & ~31, ioaddr+SM_PTR); - outw(data[0], ioaddr+SHADOW(CONF_MULTICAST+(6*i))); - outw((CONF_MULTICAST+(6*i)+2) & ~31, ioaddr+SM_PTR); - outw(data[1], ioaddr+SHADOW(CONF_MULTICAST+(6*i)+2)); - outw((CONF_MULTICAST+(6*i)+4) & ~31, ioaddr+SM_PTR); - outw(data[2], ioaddr+SHADOW(CONF_MULTICAST+(6*i)+4)); - i++; - } -} - -/* - * Set or clear the multicast filter for this adaptor. - */ -static void -eexp_set_multicast(struct net_device *dev) -{ - unsigned short ioaddr = dev->base_addr; - struct net_local *lp = netdev_priv(dev); - int kick = 0, i; - if ((dev->flags & IFF_PROMISC) != lp->was_promisc) { - outw(CONF_PROMISC & ~31, ioaddr+SM_PTR); - i = inw(ioaddr+SHADOW(CONF_PROMISC)); - outw((dev->flags & IFF_PROMISC)?(i|1):(i & ~1), - ioaddr+SHADOW(CONF_PROMISC)); - lp->was_promisc = dev->flags & IFF_PROMISC; - kick = 1; - } - if (!(dev->flags & IFF_PROMISC)) { - eexp_setup_filter(dev); - if (lp->old_mc_count != netdev_mc_count(dev)) { - kick = 1; - lp->old_mc_count = netdev_mc_count(dev); - } - } - if (kick) { - unsigned long oj; - scb_command(dev, SCB_CUsuspend); - outb(0, ioaddr+SIGNAL_CA); - outb(0, ioaddr+SIGNAL_CA); -#if 0 - printk("%s: waiting for CU to go suspended\n", dev->name); -#endif - oj = jiffies; - while ((SCB_CUstat(scb_status(dev)) == 2) && - (time_before(jiffies, oj + 2000))); - if (SCB_CUstat(scb_status(dev)) == 2) - printk("%s: warning, CU didn't stop\n", dev->name); - lp->started &= ~(STARTED_CU); - scb_wrcbl(dev, CONF_LINK); - scb_command(dev, SCB_CUstart); - outb(0, ioaddr+SIGNAL_CA); - } -} - - -/* - * MODULE stuff - */ - -#ifdef MODULE - -#define EEXP_MAX_CARDS 4 /* max number of cards to support */ - -static struct net_device *dev_eexp[EEXP_MAX_CARDS]; -static int irq[EEXP_MAX_CARDS]; -static int io[EEXP_MAX_CARDS]; - -module_param_array(io, int, NULL, 0); -module_param_array(irq, int, NULL, 0); -MODULE_PARM_DESC(io, "EtherExpress 16 I/O base address(es)"); -MODULE_PARM_DESC(irq, "EtherExpress 16 IRQ number(s)"); -MODULE_LICENSE("GPL"); - - -/* Ideally the user would give us io=, irq= for every card. If any parameters - * are specified, we verify and then use them. If no parameters are given, we - * autoprobe for one card only. - */ -int __init init_module(void) -{ - struct net_device *dev; - int this_dev, found = 0; - - for (this_dev = 0; this_dev < EEXP_MAX_CARDS; this_dev++) { - dev = alloc_etherdev(sizeof(struct net_local)); - dev->irq = irq[this_dev]; - dev->base_addr = io[this_dev]; - if (io[this_dev] == 0) { - if (this_dev) - break; - printk(KERN_NOTICE "eexpress.c: Module autoprobe not recommended, give io=xx.\n"); - } - if (do_express_probe(dev) == 0) { - dev_eexp[this_dev] = dev; - found++; - continue; - } - printk(KERN_WARNING "eexpress.c: Failed to register card at 0x%x.\n", io[this_dev]); - free_netdev(dev); - break; - } - if (found) - return 0; - return -ENXIO; -} - -void __exit cleanup_module(void) -{ - int this_dev; - - for (this_dev = 0; this_dev < EEXP_MAX_CARDS; this_dev++) { - struct net_device *dev = dev_eexp[this_dev]; - if (dev) { - unregister_netdev(dev); - free_netdev(dev); - } - } -} -#endif - -/* - * Local Variables: - * c-file-style: "linux" - * tab-width: 8 - * End: - */ diff --git a/drivers/net/ethernet/i825xx/eexpress.h b/drivers/net/ethernet/i825xx/eexpress.h deleted file mode 100644 index dc9c6ea289e9..000000000000 --- a/drivers/net/ethernet/i825xx/eexpress.h +++ /dev/null @@ -1,179 +0,0 @@ -/* - * eexpress.h: Intel EtherExpress16 defines - */ - -/* - * EtherExpress card register addresses - * as offsets from the base IO region (dev->base_addr) - */ - -#define DATAPORT 0x0000 -#define WRITE_PTR 0x0002 -#define READ_PTR 0x0004 -#define SIGNAL_CA 0x0006 -#define SET_IRQ 0x0007 -#define SM_PTR 0x0008 -#define MEM_Dec 0x000a -#define MEM_Ctrl 0x000b -#define MEM_Page_Ctrl 0x000c -#define Config 0x000d -#define EEPROM_Ctrl 0x000e -#define ID_PORT 0x000f -#define MEM_ECtrl 0x000f - -/* - * card register defines - */ - -/* SET_IRQ */ -#define SIRQ_en 0x08 -#define SIRQ_dis 0x00 - -/* EEPROM_Ctrl */ -#define EC_Clk 0x01 -#define EC_CS 0x02 -#define EC_Wr 0x04 -#define EC_Rd 0x08 -#define ASIC_RST 0x40 -#define i586_RST 0x80 - -#define eeprom_delay() { udelay(40); } - -/* - * i82586 Memory Configuration - */ - -/* (System Configuration Pointer) System start up block, read after 586_RST */ -#define SCP_START 0xfff6 - -/* Intermediate System Configuration Pointer */ -#define ISCP_START 0x0000 - -/* System Command Block */ -#define SCB_START 0x0008 - -/* Start of buffer region. Everything before this is used for control - * structures and the CU configuration program. The memory layout is - * determined in eexp_hw_probe(), once we know how much memory is - * available on the card. - */ - -#define TX_BUF_START 0x0100 - -#define TX_BUF_SIZE ((24+ETH_FRAME_LEN+31)&~0x1f) -#define RX_BUF_SIZE ((32+ETH_FRAME_LEN+31)&~0x1f) - -/* - * SCB defines - */ - -/* these functions take the SCB status word and test the relevant status bit */ -#define SCB_complete(s) (((s) & 0x8000) != 0) -#define SCB_rxdframe(s) (((s) & 0x4000) != 0) -#define SCB_CUdead(s) (((s) & 0x2000) != 0) -#define SCB_RUdead(s) (((s) & 0x1000) != 0) -#define SCB_ack(s) ((s) & 0xf000) - -/* Command unit status: 0=idle, 1=suspended, 2=active */ -#define SCB_CUstat(s) (((s)&0x0300)>>8) - -/* Receive unit status: 0=idle, 1=suspended, 2=out of resources, 4=ready */ -#define SCB_RUstat(s) (((s)&0x0070)>>4) - -/* SCB commands */ -#define SCB_CUnop 0x0000 -#define SCB_CUstart 0x0100 -#define SCB_CUresume 0x0200 -#define SCB_CUsuspend 0x0300 -#define SCB_CUabort 0x0400 -#define SCB_resetchip 0x0080 - -#define SCB_RUnop 0x0000 -#define SCB_RUstart 0x0010 -#define SCB_RUresume 0x0020 -#define SCB_RUsuspend 0x0030 -#define SCB_RUabort 0x0040 - -/* - * Command block defines - */ - -#define Stat_Done(s) (((s) & 0x8000) != 0) -#define Stat_Busy(s) (((s) & 0x4000) != 0) -#define Stat_OK(s) (((s) & 0x2000) != 0) -#define Stat_Abort(s) (((s) & 0x1000) != 0) -#define Stat_STFail (((s) & 0x0800) != 0) -#define Stat_TNoCar(s) (((s) & 0x0400) != 0) -#define Stat_TNoCTS(s) (((s) & 0x0200) != 0) -#define Stat_TNoDMA(s) (((s) & 0x0100) != 0) -#define Stat_TDefer(s) (((s) & 0x0080) != 0) -#define Stat_TColl(s) (((s) & 0x0040) != 0) -#define Stat_TXColl(s) (((s) & 0x0020) != 0) -#define Stat_NoColl(s) ((s) & 0x000f) - -/* Cmd_END will end AFTER the command if this is the first - * command block after an SCB_CUstart, but BEFORE the command - * for all subsequent commands. Best strategy is to place - * Cmd_INT on the last command in the sequence, followed by a - * dummy Cmd_Nop with Cmd_END after this. - */ - -#define Cmd_END 0x8000 -#define Cmd_SUS 0x4000 -#define Cmd_INT 0x2000 - -#define Cmd_Nop 0x0000 -#define Cmd_SetAddr 0x0001 -#define Cmd_Config 0x0002 -#define Cmd_MCast 0x0003 -#define Cmd_Xmit 0x0004 -#define Cmd_TDR 0x0005 -#define Cmd_Dump 0x0006 -#define Cmd_Diag 0x0007 - - -/* - * Frame Descriptor (Receive block) defines - */ - -#define FD_Done(s) (((s) & 0x8000) != 0) -#define FD_Busy(s) (((s) & 0x4000) != 0) -#define FD_OK(s) (((s) & 0x2000) != 0) - -#define FD_CRC(s) (((s) & 0x0800) != 0) -#define FD_Align(s) (((s) & 0x0400) != 0) -#define FD_Resrc(s) (((s) & 0x0200) != 0) -#define FD_DMA(s) (((s) & 0x0100) != 0) -#define FD_Short(s) (((s) & 0x0080) != 0) -#define FD_NoEOF(s) (((s) & 0x0040) != 0) - -struct rfd_header { - volatile unsigned long flags; - volatile unsigned short link; - volatile unsigned short rbd_offset; - volatile unsigned short dstaddr1; - volatile unsigned short dstaddr2; - volatile unsigned short dstaddr3; - volatile unsigned short srcaddr1; - volatile unsigned short srcaddr2; - volatile unsigned short srcaddr3; - volatile unsigned short length; - - /* This is actually a Receive Buffer Descriptor. The way we - * arrange memory means that an RBD always follows the RFD that - * points to it, so they might as well be in the same structure. - */ - volatile unsigned short actual_count; - volatile unsigned short next_rbd; - volatile unsigned short buf_addr1; - volatile unsigned short buf_addr2; - volatile unsigned short size; -}; - -/* Returned data from the Time Domain Reflectometer */ - -#define TDR_LINKOK (1<<15) -#define TDR_XCVRPROBLEM (1<<14) -#define TDR_OPEN (1<<13) -#define TDR_SHORT (1<<12) -#define TDR_TIME 0x7ff diff --git a/drivers/net/ethernet/i825xx/lp486e.c b/drivers/net/ethernet/i825xx/lp486e.c deleted file mode 100644 index 3735bfa53600..000000000000 --- a/drivers/net/ethernet/i825xx/lp486e.c +++ /dev/null @@ -1,1337 +0,0 @@ -/* Intel Professional Workstation/panther ethernet driver */ -/* lp486e.c: A panther 82596 ethernet driver for linux. */ -/* - History and copyrights: - - Driver skeleton - Written 1993 by Donald Becker. - Copyright 1993 United States Government as represented by the Director, - National Security Agency. This software may only be used and - distributed according to the terms of the GNU General Public License - as modified by SRC, incorporated herein by reference. - - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation - 410 Severn Ave., Suite 210 - Annapolis MD 21403 - - Apricot - Written 1994 by Mark Evans. - This driver is for the Apricot 82596 bus-master interface - - Modularised 12/94 Mark Evans - - Professional Workstation - Derived from apricot.c by Ard van Breemen - <ard@murphy.nl>|<ard@cstmel.hobby.nl>|<ard@cstmel.nl.eu.org> - - Credits: - Thanks to Murphy Software BV for letting me write this in their time. - Well, actually, I get paid doing this... - (Also: see http://www.murphy.nl for murphy, and my homepage ~ard for - more information on the Professional Workstation) - - Present version - aeb@cwi.nl -*/ -/* - There are currently two motherboards that I know of in the - professional workstation. The only one that I know is the - intel panther motherboard. -- ard -*/ -/* -The pws is equipped with an intel 82596. This is a very intelligent controller -which runs its own micro-code. Communication with the hostprocessor is done -through linked lists of commands and buffers in the hostprocessors memory. -A complete description of the 82596 is available from intel. Search for -a file called "29021806.pdf". It is a complete description of the chip itself. -To use it for the pws some additions are needed regarding generation of -the PORT and CA signal, and the interrupt glue needed for a pc. -I/O map: -PORT SIZE ACTION MEANING -0xCB0 2 WRITE Lower 16 bits for PORT command -0xCB2 2 WRITE Upper 16 bits for PORT command, and issue of PORT command -0xCB4 1 WRITE Generation of CA signal -0xCB8 1 WRITE Clear interrupt glue -All other communication is through memory! -*/ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/dma.h> - -#define DRV_NAME "lp486e" - -/* debug print flags */ -#define LOG_SRCDST 0x80000000 -#define LOG_STATINT 0x40000000 -#define LOG_STARTINT 0x20000000 - -#define i596_debug debug - -static int i596_debug = 0; - -static const char * const medianame[] = { - "10baseT", "AUI", - "10baseT-FD", "AUI-FD", -}; - -#define LP486E_TOTAL_SIZE 16 - -#define I596_NULL (0xffffffff) - -#define CMD_EOL 0x8000 /* The last command of the list, stop. */ -#define CMD_SUSP 0x4000 /* Suspend after doing cmd. */ -#define CMD_INTR 0x2000 /* Interrupt after doing cmd. */ - -#define CMD_FLEX 0x0008 /* Enable flexible memory model */ - -enum commands { - CmdNOP = 0, - CmdIASetup = 1, - CmdConfigure = 2, - CmdMulticastList = 3, - CmdTx = 4, - CmdTDR = 5, - CmdDump = 6, - CmdDiagnose = 7 -}; - -#if 0 -static const char *CUcmdnames[8] = { "NOP", "IASetup", "Configure", "MulticastList", - "Tx", "TDR", "Dump", "Diagnose" }; -#endif - -/* Status word bits */ -#define STAT_CX 0x8000 /* The CU finished executing a command - with the Interrupt bit set */ -#define STAT_FR 0x4000 /* The RU finished receiving a frame */ -#define STAT_CNA 0x2000 /* The CU left the active state */ -#define STAT_RNR 0x1000 /* The RU left the active state */ -#define STAT_ACK (STAT_CX | STAT_FR | STAT_CNA | STAT_RNR) -#define STAT_CUS 0x0700 /* Status of CU: 0: idle, 1: suspended, - 2: active, 3-7: unused */ -#define STAT_RUS 0x00f0 /* Status of RU: 0: idle, 1: suspended, - 2: no resources, 4: ready, - 10: no resources due to no more RBDs, - 12: no more RBDs, other: unused */ -#define STAT_T 0x0008 /* Bus throttle timers loaded */ -#define STAT_ZERO 0x0807 /* Always zero */ - -#if 0 -static char *CUstates[8] = { - "idle", "suspended", "active", 0, 0, 0, 0, 0 -}; -static char *RUstates[16] = { - "idle", "suspended", "no resources", 0, "ready", 0, 0, 0, - 0, 0, "no RBDs", 0, "out of RBDs", 0, 0, 0 -}; - -static void -i596_out_status(int status) { - int bad = 0; - char *s; - - printk("status %4.4x:", status); - if (status == 0xffff) - printk(" strange..\n"); - else { - if (status & STAT_CX) - printk(" CU done"); - if (status & STAT_CNA) - printk(" CU stopped"); - if (status & STAT_FR) - printk(" got a frame"); - if (status & STAT_RNR) - printk(" RU stopped"); - if (status & STAT_T) - printk(" throttled"); - if (status & STAT_ZERO) - bad = 1; - s = CUstates[(status & STAT_CUS) >> 8]; - if (!s) - bad = 1; - else - printk(" CU(%s)", s); - s = RUstates[(status & STAT_RUS) >> 4]; - if (!s) - bad = 1; - else - printk(" RU(%s)", s); - if (bad) - printk(" bad status"); - printk("\n"); - } -} -#endif - -/* Command word bits */ -#define ACK_CX 0x8000 -#define ACK_FR 0x4000 -#define ACK_CNA 0x2000 -#define ACK_RNR 0x1000 - -#define CUC_START 0x0100 -#define CUC_RESUME 0x0200 -#define CUC_SUSPEND 0x0300 -#define CUC_ABORT 0x0400 - -#define RX_START 0x0010 -#define RX_RESUME 0x0020 -#define RX_SUSPEND 0x0030 -#define RX_ABORT 0x0040 - -typedef u32 phys_addr; - -static inline phys_addr -va_to_pa(void *x) { - return x ? virt_to_bus(x) : I596_NULL; -} - -static inline void * -pa_to_va(phys_addr x) { - return (x == I596_NULL) ? NULL : bus_to_virt(x); -} - -/* status bits for cmd */ -#define CMD_STAT_C 0x8000 /* CU command complete */ -#define CMD_STAT_B 0x4000 /* CU command in progress */ -#define CMD_STAT_OK 0x2000 /* CU command completed without errors */ -#define CMD_STAT_A 0x1000 /* CU command abnormally terminated */ - -struct i596_cmd { /* 8 bytes */ - unsigned short status; - unsigned short command; - phys_addr pa_next; /* va_to_pa(struct i596_cmd *next) */ -}; - -#define EOF 0x8000 -#define SIZE_MASK 0x3fff - -struct i596_tbd { - unsigned short size; - unsigned short pad; - phys_addr pa_next; /* va_to_pa(struct i596_tbd *next) */ - phys_addr pa_data; /* va_to_pa(char *data) */ - struct sk_buff *skb; -}; - -struct tx_cmd { - struct i596_cmd cmd; - phys_addr pa_tbd; /* va_to_pa(struct i596_tbd *tbd) */ - unsigned short size; - unsigned short pad; -}; - -/* status bits for rfd */ -#define RFD_STAT_C 0x8000 /* Frame reception complete */ -#define RFD_STAT_B 0x4000 /* Frame reception in progress */ -#define RFD_STAT_OK 0x2000 /* Frame received without errors */ -#define RFD_STATUS 0x1fff -#define RFD_LENGTH_ERR 0x1000 -#define RFD_CRC_ERR 0x0800 -#define RFD_ALIGN_ERR 0x0400 -#define RFD_NOBUFS_ERR 0x0200 -#define RFD_DMA_ERR 0x0100 /* DMA overrun failure to acquire system bus */ -#define RFD_SHORT_FRAME_ERR 0x0080 -#define RFD_NOEOP_ERR 0x0040 -#define RFD_TRUNC_ERR 0x0020 -#define RFD_MULTICAST 0x0002 /* 0: destination had our address - 1: destination was broadcast/multicast */ -#define RFD_COLLISION 0x0001 - -/* receive frame descriptor */ -struct i596_rfd { - unsigned short stat; - unsigned short cmd; - phys_addr pa_next; /* va_to_pa(struct i596_rfd *next) */ - phys_addr pa_rbd; /* va_to_pa(struct i596_rbd *rbd) */ - unsigned short count; - unsigned short size; - char data[1532]; -}; - -#define RBD_EL 0x8000 -#define RBD_P 0x4000 -#define RBD_SIZEMASK 0x3fff -#define RBD_EOF 0x8000 -#define RBD_F 0x4000 - -/* receive buffer descriptor */ -struct i596_rbd { - unsigned short size; - unsigned short pad; - phys_addr pa_next; /* va_to_pa(struct i596_tbd *next) */ - phys_addr pa_data; /* va_to_pa(char *data) */ - phys_addr pa_prev; /* va_to_pa(struct i596_tbd *prev) */ - - /* Driver private part */ - struct sk_buff *skb; -}; - -#define RX_RING_SIZE 64 -#define RX_SKBSIZE (ETH_FRAME_LEN+10) -#define RX_RBD_SIZE 32 - -/* System Control Block - 40 bytes */ -struct i596_scb { - u16 status; /* 0 */ - u16 command; /* 2 */ - phys_addr pa_cmd; /* 4 - va_to_pa(struct i596_cmd *cmd) */ - phys_addr pa_rfd; /* 8 - va_to_pa(struct i596_rfd *rfd) */ - u32 crc_err; /* 12 */ - u32 align_err; /* 16 */ - u32 resource_err; /* 20 */ - u32 over_err; /* 24 */ - u32 rcvdt_err; /* 28 */ - u32 short_err; /* 32 */ - u16 t_on; /* 36 */ - u16 t_off; /* 38 */ -}; - -/* Intermediate System Configuration Pointer - 8 bytes */ -struct i596_iscp { - u32 busy; /* 0 */ - phys_addr pa_scb; /* 4 - va_to_pa(struct i596_scb *scb) */ -}; - -/* System Configuration Pointer - 12 bytes */ -struct i596_scp { - u32 sysbus; /* 0 */ - u32 pad; /* 4 */ - phys_addr pa_iscp; /* 8 - va_to_pa(struct i596_iscp *iscp) */ -}; - -/* Selftest and dump results - needs 16-byte alignment */ -/* - * The size of the dump area is 304 bytes. When the dump is executed - * by the Port command an extra word will be appended to the dump area. - * The extra word is a copy of the Dump status word (containing the - * C, B, OK bits). [I find 0xa006, with a0 for C+OK and 6 for dump] - */ -struct i596_dump { - u16 dump[153]; /* (304 = 130h) + 2 bytes */ -}; - -struct i596_private { /* aligned to a 16-byte boundary */ - struct i596_scp scp; /* 0 - needs 16-byte alignment */ - struct i596_iscp iscp; /* 12 */ - struct i596_scb scb; /* 20 */ - u32 dummy; /* 60 */ - struct i596_dump dump; /* 64 - needs 16-byte alignment */ - - struct i596_cmd set_add; - char eth_addr[8]; /* directly follows set_add */ - - struct i596_cmd set_conf; - char i596_config[16]; /* directly follows set_conf */ - - struct i596_cmd tdr; - unsigned long tdr_stat; /* directly follows tdr */ - - int last_restart; - struct i596_rbd *rbd_list; - struct i596_rbd *rbd_tail; - struct i596_rfd *rx_tail; - struct i596_cmd *cmd_tail; - struct i596_cmd *cmd_head; - int cmd_backlog; - unsigned long last_cmd; - spinlock_t cmd_lock; -}; - -static char init_setup[14] = { - 0x8E, /* length 14 bytes, prefetch on */ - 0xC8, /* default: fifo to 8, monitor off */ - 0x40, /* default: don't save bad frames (apricot.c had 0x80) */ - 0x2E, /* (default is 0x26) - No source address insertion, 8 byte preamble */ - 0x00, /* default priority and backoff */ - 0x60, /* default interframe spacing */ - 0x00, /* default slot time LSB */ - 0xf2, /* default slot time and nr of retries */ - 0x00, /* default various bits - (0: promiscuous mode, 1: broadcast disable, - 2: encoding mode, 3: transmit on no CRS, - 4: no CRC insertion, 5: CRC type, - 6: bit stuffing, 7: padding) */ - 0x00, /* default carrier sense and collision detect */ - 0x40, /* default minimum frame length */ - 0xff, /* (default is 0xff, and that is what apricot.c has; - elp486.c has 0xfb: Enable crc append in memory.) */ - 0x00, /* default: not full duplex */ - 0x7f /* (default is 0x3f) multi IA */ -}; - -static int i596_open(struct net_device *dev); -static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev); -static irqreturn_t i596_interrupt(int irq, void *dev_id); -static int i596_close(struct net_device *dev); -static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd); -static void print_eth(char *); -static void set_multicast_list(struct net_device *dev); -static void i596_tx_timeout(struct net_device *dev); - -static int -i596_timeout(struct net_device *dev, char *msg, int ct) { - struct i596_private *lp; - int boguscnt = ct; - - lp = netdev_priv(dev); - while (lp->scb.command) { - if (--boguscnt == 0) { - printk("%s: %s timed out - stat %4.4x, cmd %4.4x\n", - dev->name, msg, - lp->scb.status, lp->scb.command); - return 1; - } - udelay(5); - barrier(); - } - return 0; -} - -static inline int -init_rx_bufs(struct net_device *dev, int num) { - struct i596_private *lp; - struct i596_rfd *rfd; - int i; - // struct i596_rbd *rbd; - - lp = netdev_priv(dev); - lp->scb.pa_rfd = I596_NULL; - - for (i = 0; i < num; i++) { - rfd = kmalloc(sizeof(struct i596_rfd), GFP_KERNEL); - if (rfd == NULL) - break; - - rfd->stat = 0; - rfd->pa_rbd = I596_NULL; - rfd->count = 0; - rfd->size = 1532; - if (i == 0) { - rfd->cmd = CMD_EOL; - lp->rx_tail = rfd; - } else { - rfd->cmd = 0; - } - rfd->pa_next = lp->scb.pa_rfd; - lp->scb.pa_rfd = va_to_pa(rfd); - lp->rx_tail->pa_next = lp->scb.pa_rfd; - } - -#if 0 - for (i = 0; i<RX_RBD_SIZE; i++) { - rbd = kmalloc(sizeof(struct i596_rbd), GFP_KERNEL); - if (rbd) { - rbd->pad = 0; - rbd->count = 0; - rbd->skb = dev_alloc_skb(RX_SKBSIZE); - if (!rbd->skb) { - printk("dev_alloc_skb failed"); - } - rbd->next = rfd->rbd; - if (i) { - rfd->rbd->prev = rbd; - rbd->size = RX_SKBSIZE; - } else { - rbd->size = (RX_SKBSIZE | RBD_EL); - lp->rbd_tail = rbd; - } - - rfd->rbd = rbd; - } - } - lp->rbd_tail->next = rfd->rbd; -#endif - return i; -} - -static inline void -remove_rx_bufs(struct net_device *dev) { - struct i596_private *lp; - struct i596_rfd *rfd; - - lp = netdev_priv(dev); - lp->rx_tail->pa_next = I596_NULL; - - do { - rfd = pa_to_va(lp->scb.pa_rfd); - lp->scb.pa_rfd = rfd->pa_next; - kfree(rfd); - } while (rfd != lp->rx_tail); - - lp->rx_tail = NULL; - -#if 0 - for (lp->rbd_list) { - } -#endif -} - -#define PORT_RESET 0x00 /* reset 82596 */ -#define PORT_SELFTEST 0x01 /* selftest */ -#define PORT_ALTSCP 0x02 /* alternate SCB address */ -#define PORT_DUMP 0x03 /* dump */ - -#define IOADDR 0xcb0 /* real constant */ -#define IRQ 10 /* default IRQ - can be changed by ECU */ - -/* The 82596 requires two 16-bit write cycles for a port command */ -static inline void -PORT(phys_addr a, unsigned int cmd) { - if (a & 0xf) - printk("lp486e.c: PORT: address not aligned\n"); - outw(((a & 0xffff) | cmd), IOADDR); - outw(((a>>16) & 0xffff), IOADDR+2); -} - -static inline void -CA(void) { - outb(0, IOADDR+4); - udelay(8); -} - -static inline void -CLEAR_INT(void) { - outb(0, IOADDR+8); -} - -#if 0 -/* selftest or dump */ -static void -i596_port_do(struct net_device *dev, int portcmd, char *cmdname) { - struct i596_private *lp = netdev_priv(dev); - u16 *outp; - int i, m; - - memset((void *)&(lp->dump), 0, sizeof(struct i596_dump)); - outp = &(lp->dump.dump[0]); - - PORT(va_to_pa(outp), portcmd); - mdelay(30); /* random, unmotivated */ - - printk("lp486e i82596 %s result:\n", cmdname); - for (m = ARRAY_SIZE(lp->dump.dump); m && lp->dump.dump[m-1] == 0; m--) - ; - for (i = 0; i < m; i++) { - printk(" %04x", lp->dump.dump[i]); - if (i%8 == 7) - printk("\n"); - } - printk("\n"); -} -#endif - -static int -i596_scp_setup(struct net_device *dev) { - struct i596_private *lp = netdev_priv(dev); - int boguscnt; - - /* Setup SCP, ISCP, SCB */ - /* - * sysbus bits: - * only a single byte is significant - here 0x44 - * 0x80: big endian mode (details depend on stepping) - * 0x40: 1 - * 0x20: interrupt pin is active low - * 0x10: lock function disabled - * 0x08: external triggering of bus throttle timers - * 0x06: 00: 82586 compat mode, 01: segmented mode, 10: linear mode - * 0x01: unused - */ - lp->scp.sysbus = 0x00440000; /* linear mode */ - lp->scp.pad = 0; /* must be zero */ - lp->scp.pa_iscp = va_to_pa(&(lp->iscp)); - - /* - * The CPU sets the ISCP to 1 before it gives the first CA() - */ - lp->iscp.busy = 0x0001; - lp->iscp.pa_scb = va_to_pa(&(lp->scb)); - - lp->scb.command = 0; - lp->scb.status = 0; - lp->scb.pa_cmd = I596_NULL; - /* lp->scb.pa_rfd has been initialised already */ - - lp->last_cmd = jiffies; - lp->cmd_backlog = 0; - lp->cmd_head = NULL; - - /* - * Reset the 82596. - * We need to wait 10 systemclock cycles, and - * 5 serial clock cycles. - */ - PORT(0, PORT_RESET); /* address part ignored */ - udelay(100); - - /* - * Before the CA signal is asserted, the default SCP address - * (0x00fffff4) can be changed to a 16-byte aligned value - */ - PORT(va_to_pa(&lp->scp), PORT_ALTSCP); /* change the scp address */ - - /* - * The initialization procedure begins when a - * Channel Attention signal is asserted after a reset. - */ - - CA(); - - /* - * The ISCP busy is cleared by the 82596 after the SCB address is read. - */ - boguscnt = 100; - while (lp->iscp.busy) { - if (--boguscnt == 0) { - /* No i82596 present? */ - printk("%s: i82596 initialization timed out\n", - dev->name); - return 1; - } - udelay(5); - barrier(); - } - /* I find here boguscnt==100, so no delay was required. */ - - return 0; -} - -static int -init_i596(struct net_device *dev) { - struct i596_private *lp; - - if (i596_scp_setup(dev)) - return 1; - - lp = netdev_priv(dev); - lp->scb.command = 0; - - memcpy ((void *)lp->i596_config, init_setup, 14); - lp->set_conf.command = CmdConfigure; - i596_add_cmd(dev, (void *)&lp->set_conf); - - memcpy ((void *)lp->eth_addr, dev->dev_addr, 6); - lp->set_add.command = CmdIASetup; - i596_add_cmd(dev, &lp->set_add); - - lp->tdr.command = CmdTDR; - i596_add_cmd(dev, &lp->tdr); - - if (lp->scb.command && i596_timeout(dev, "i82596 init", 200)) - return 1; - - lp->scb.command = RX_START; - CA(); - - barrier(); - - if (lp->scb.command && i596_timeout(dev, "Receive Unit start", 100)) - return 1; - - return 0; -} - -/* Receive a single frame */ -static inline int -i596_rx_one(struct net_device *dev, struct i596_private *lp, - struct i596_rfd *rfd, int *frames) { - - if (rfd->stat & RFD_STAT_OK) { - /* a good frame */ - int pkt_len = (rfd->count & 0x3fff); - struct sk_buff *skb = netdev_alloc_skb(dev, pkt_len); - - (*frames)++; - - if (rfd->cmd & CMD_EOL) - printk("Received on EOL\n"); - - if (skb == NULL) { - printk ("%s: i596_rx Memory squeeze, " - "dropping packet.\n", dev->name); - dev->stats.rx_dropped++; - return 1; - } - - memcpy(skb_put(skb,pkt_len), rfd->data, pkt_len); - - skb->protocol = eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - } else { -#if 0 - printk("Frame reception error status %04x\n", - rfd->stat); -#endif - dev->stats.rx_errors++; - if (rfd->stat & RFD_COLLISION) - dev->stats.collisions++; - if (rfd->stat & RFD_SHORT_FRAME_ERR) - dev->stats.rx_length_errors++; - if (rfd->stat & RFD_DMA_ERR) - dev->stats.rx_over_errors++; - if (rfd->stat & RFD_NOBUFS_ERR) - dev->stats.rx_fifo_errors++; - if (rfd->stat & RFD_ALIGN_ERR) - dev->stats.rx_frame_errors++; - if (rfd->stat & RFD_CRC_ERR) - dev->stats.rx_crc_errors++; - if (rfd->stat & RFD_LENGTH_ERR) - dev->stats.rx_length_errors++; - } - rfd->stat = rfd->count = 0; - return 0; -} - -static int -i596_rx(struct net_device *dev) { - struct i596_private *lp = netdev_priv(dev); - struct i596_rfd *rfd; - int frames = 0; - - while (1) { - rfd = pa_to_va(lp->scb.pa_rfd); - if (!rfd) { - printk(KERN_ERR "i596_rx: NULL rfd?\n"); - return 0; - } -#if 1 - if (rfd->stat && !(rfd->stat & (RFD_STAT_C | RFD_STAT_B))) - printk("SF:%p-%04x\n", rfd, rfd->stat); -#endif - if (!(rfd->stat & RFD_STAT_C)) - break; /* next one not ready */ - if (i596_rx_one(dev, lp, rfd, &frames)) - break; /* out of memory */ - rfd->cmd = CMD_EOL; - lp->rx_tail->cmd = 0; - lp->rx_tail = rfd; - lp->scb.pa_rfd = rfd->pa_next; - barrier(); - } - - return frames; -} - -static void -i596_cleanup_cmd(struct net_device *dev) { - struct i596_private *lp; - struct i596_cmd *cmd; - - lp = netdev_priv(dev); - while (lp->cmd_head) { - cmd = lp->cmd_head; - - lp->cmd_head = pa_to_va(lp->cmd_head->pa_next); - lp->cmd_backlog--; - - switch ((cmd->command) & 0x7) { - case CmdTx: { - struct tx_cmd *tx_cmd = (struct tx_cmd *) cmd; - struct i596_tbd * tx_cmd_tbd; - tx_cmd_tbd = pa_to_va(tx_cmd->pa_tbd); - - dev_kfree_skb_any(tx_cmd_tbd->skb); - - dev->stats.tx_errors++; - dev->stats.tx_aborted_errors++; - - cmd->pa_next = I596_NULL; - kfree((unsigned char *)tx_cmd); - netif_wake_queue(dev); - break; - } - case CmdMulticastList: { - // unsigned short count = *((unsigned short *) (ptr + 1)); - - cmd->pa_next = I596_NULL; - kfree((unsigned char *)cmd); - break; - } - default: { - cmd->pa_next = I596_NULL; - break; - } - } - barrier(); - } - - if (lp->scb.command && i596_timeout(dev, "i596_cleanup_cmd", 100)) - ; - - lp->scb.pa_cmd = va_to_pa(lp->cmd_head); -} - -static void i596_reset(struct net_device *dev, struct i596_private *lp, int ioaddr) { - - if (lp->scb.command && i596_timeout(dev, "i596_reset", 100)) - ; - - netif_stop_queue(dev); - - lp->scb.command = CUC_ABORT | RX_ABORT; - CA(); - barrier(); - - /* wait for shutdown */ - if (lp->scb.command && i596_timeout(dev, "i596_reset(2)", 400)) - ; - - i596_cleanup_cmd(dev); - i596_rx(dev); - - netif_start_queue(dev); - /*dev_kfree_skb(skb, FREE_WRITE);*/ - init_i596(dev); -} - -static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd) { - struct i596_private *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - unsigned long flags; - - cmd->status = 0; - cmd->command |= (CMD_EOL | CMD_INTR); - cmd->pa_next = I596_NULL; - - spin_lock_irqsave(&lp->cmd_lock, flags); - - if (lp->cmd_head) { - lp->cmd_tail->pa_next = va_to_pa(cmd); - } else { - lp->cmd_head = cmd; - if (lp->scb.command && i596_timeout(dev, "i596_add_cmd", 100)) - ; - lp->scb.pa_cmd = va_to_pa(cmd); - lp->scb.command = CUC_START; - CA(); - } - lp->cmd_tail = cmd; - lp->cmd_backlog++; - - lp->cmd_head = pa_to_va(lp->scb.pa_cmd); - spin_unlock_irqrestore(&lp->cmd_lock, flags); - - if (lp->cmd_backlog > 16) { - int tickssofar = jiffies - lp->last_cmd; - if (tickssofar < HZ/4) - return; - - printk(KERN_WARNING "%s: command unit timed out, status resetting.\n", dev->name); - i596_reset(dev, lp, ioaddr); - } -} - -static int i596_open(struct net_device *dev) -{ - int i; - - i = request_irq(dev->irq, i596_interrupt, IRQF_SHARED, dev->name, dev); - if (i) { - printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq); - return i; - } - - if ((i = init_rx_bufs(dev, RX_RING_SIZE)) < RX_RING_SIZE) - printk(KERN_ERR "%s: only able to allocate %d receive buffers\n", dev->name, i); - - if (i < 4) { - free_irq(dev->irq, dev); - return -EAGAIN; - } - netif_start_queue(dev); - init_i596(dev); - return 0; /* Always succeed */ -} - -static netdev_tx_t i596_start_xmit (struct sk_buff *skb, struct net_device *dev) { - struct tx_cmd *tx_cmd; - short length; - - length = skb->len; - - if (length < ETH_ZLEN) { - if (skb_padto(skb, ETH_ZLEN)) - return NETDEV_TX_OK; - length = ETH_ZLEN; - } - - tx_cmd = kmalloc((sizeof (struct tx_cmd) + sizeof (struct i596_tbd)), GFP_ATOMIC); - if (tx_cmd == NULL) { - printk(KERN_WARNING "%s: i596_xmit Memory squeeze, dropping packet.\n", dev->name); - dev->stats.tx_dropped++; - dev_kfree_skb (skb); - } else { - struct i596_tbd *tx_cmd_tbd; - tx_cmd_tbd = (struct i596_tbd *) (tx_cmd + 1); - tx_cmd->pa_tbd = va_to_pa (tx_cmd_tbd); - tx_cmd_tbd->pa_next = I596_NULL; - - tx_cmd->cmd.command = (CMD_FLEX | CmdTx); - - tx_cmd->pad = 0; - tx_cmd->size = 0; - tx_cmd_tbd->pad = 0; - tx_cmd_tbd->size = (EOF | length); - - tx_cmd_tbd->pa_data = va_to_pa (skb->data); - tx_cmd_tbd->skb = skb; - - if (i596_debug & LOG_SRCDST) - print_eth (skb->data); - - i596_add_cmd (dev, (struct i596_cmd *) tx_cmd); - - dev->stats.tx_packets++; - } - - return NETDEV_TX_OK; -} - -static void -i596_tx_timeout (struct net_device *dev) { - struct i596_private *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - /* Transmitter timeout, serious problems. */ - printk(KERN_WARNING "%s: transmit timed out, status resetting.\n", dev->name); - dev->stats.tx_errors++; - - /* Try to restart the adaptor */ - if (lp->last_restart == dev->stats.tx_packets) { - printk ("Resetting board.\n"); - - /* Shutdown and restart */ - i596_reset (dev, lp, ioaddr); - } else { - /* Issue a channel attention signal */ - printk ("Kicking board.\n"); - lp->scb.command = (CUC_START | RX_START); - CA(); - lp->last_restart = dev->stats.tx_packets; - } - netif_wake_queue(dev); -} - -static void print_eth(char *add) -{ - int i; - - printk ("Dest "); - for (i = 0; i < 6; i++) - printk(" %2.2X", (unsigned char) add[i]); - printk ("\n"); - - printk ("Source"); - for (i = 0; i < 6; i++) - printk(" %2.2X", (unsigned char) add[i+6]); - printk ("\n"); - - printk ("type %2.2X%2.2X\n", - (unsigned char) add[12], (unsigned char) add[13]); -} - -static const struct net_device_ops i596_netdev_ops = { - .ndo_open = i596_open, - .ndo_stop = i596_close, - .ndo_start_xmit = i596_start_xmit, - .ndo_set_rx_mode = set_multicast_list, - .ndo_tx_timeout = i596_tx_timeout, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -static int __init lp486e_probe(struct net_device *dev) { - struct i596_private *lp; - unsigned char eth_addr[6] = { 0, 0xaa, 0, 0, 0, 0 }; - unsigned char *bios; - int i, j; - int ret = -ENOMEM; - static int probed; - - if (probed) - return -ENODEV; - probed++; - - if (!request_region(IOADDR, LP486E_TOTAL_SIZE, DRV_NAME)) { - printk(KERN_ERR "lp486e: IO address 0x%x in use\n", IOADDR); - return -EBUSY; - } - - lp = netdev_priv(dev); - spin_lock_init(&lp->cmd_lock); - - /* - * Do we really have this thing? - */ - if (i596_scp_setup(dev)) { - ret = -ENODEV; - goto err_out_kfree; - } - - dev->base_addr = IOADDR; - dev->irq = IRQ; - - - /* - * How do we find the ethernet address? I don't know. - * One possibility is to look at the EISA configuration area - * [0xe8000-0xe9fff]. This contains the ethernet address - * but not at a fixed address - things depend on setup options. - * - * If we find no address, or the wrong address, use - * ifconfig eth0 hw ether a1:a2:a3:a4:a5:a6 - * with the value found in the BIOS setup. - */ - bios = bus_to_virt(0xe8000); - for (j = 0; j < 0x2000; j++) { - if (bios[j] == 0 && bios[j+1] == 0xaa && bios[j+2] == 0) { - printk("%s: maybe address at BIOS 0x%x:", - dev->name, 0xe8000+j); - for (i = 0; i < 6; i++) { - eth_addr[i] = bios[i+j]; - printk(" %2.2X", eth_addr[i]); - } - printk("\n"); - } - } - - printk("%s: lp486e 82596 at %#3lx, IRQ %d,", - dev->name, dev->base_addr, dev->irq); - for (i = 0; i < 6; i++) - printk(" %2.2X", dev->dev_addr[i] = eth_addr[i]); - printk("\n"); - - /* The LP486E-specific entries in the device structure. */ - dev->netdev_ops = &i596_netdev_ops; - dev->watchdog_timeo = 5*HZ; - -#if 0 - /* selftest reports 0x320925ae - don't know what that means */ - i596_port_do(dev, PORT_SELFTEST, "selftest"); - i596_port_do(dev, PORT_DUMP, "dump"); -#endif - return 0; - -err_out_kfree: - release_region(IOADDR, LP486E_TOTAL_SIZE); - return ret; -} - -static inline void -i596_handle_CU_completion(struct net_device *dev, - struct i596_private *lp, - unsigned short status, - unsigned short *ack_cmdp) { - struct i596_cmd *cmd; - int frames_out = 0; - int commands_done = 0; - int cmd_val; - unsigned long flags; - - spin_lock_irqsave(&lp->cmd_lock, flags); - cmd = lp->cmd_head; - - while (lp->cmd_head && (lp->cmd_head->status & CMD_STAT_C)) { - cmd = lp->cmd_head; - - lp->cmd_head = pa_to_va(lp->cmd_head->pa_next); - lp->cmd_backlog--; - - commands_done++; - cmd_val = cmd->command & 0x7; -#if 0 - printk("finished CU %s command (%d)\n", - CUcmdnames[cmd_val], cmd_val); -#endif - switch (cmd_val) { - case CmdTx: - { - struct tx_cmd *tx_cmd; - struct i596_tbd *tx_cmd_tbd; - - tx_cmd = (struct tx_cmd *) cmd; - tx_cmd_tbd = pa_to_va(tx_cmd->pa_tbd); - - frames_out++; - if (cmd->status & CMD_STAT_OK) { - if (i596_debug) - print_eth(pa_to_va(tx_cmd_tbd->pa_data)); - } else { - dev->stats.tx_errors++; - if (i596_debug) - printk("transmission failure:%04x\n", - cmd->status); - if (cmd->status & 0x0020) - dev->stats.collisions++; - if (!(cmd->status & 0x0040)) - dev->stats.tx_heartbeat_errors++; - if (cmd->status & 0x0400) - dev->stats.tx_carrier_errors++; - if (cmd->status & 0x0800) - dev->stats.collisions++; - if (cmd->status & 0x1000) - dev->stats.tx_aborted_errors++; - } - dev_kfree_skb_irq(tx_cmd_tbd->skb); - - cmd->pa_next = I596_NULL; - kfree((unsigned char *)tx_cmd); - netif_wake_queue(dev); - break; - } - - case CmdMulticastList: - cmd->pa_next = I596_NULL; - kfree((unsigned char *)cmd); - break; - - case CmdTDR: - { - unsigned long status = *((unsigned long *) (cmd + 1)); - if (status & 0x8000) { - if (i596_debug) - printk("%s: link ok.\n", dev->name); - } else { - if (status & 0x4000) - printk("%s: Transceiver problem.\n", - dev->name); - if (status & 0x2000) - printk("%s: Termination problem.\n", - dev->name); - if (status & 0x1000) - printk("%s: Short circuit.\n", - dev->name); - printk("%s: Time %ld.\n", - dev->name, status & 0x07ff); - } - } - default: - cmd->pa_next = I596_NULL; - lp->last_cmd = jiffies; - - } - barrier(); - } - - cmd = lp->cmd_head; - while (cmd && (cmd != lp->cmd_tail)) { - cmd->command &= 0x1fff; - cmd = pa_to_va(cmd->pa_next); - barrier(); - } - - if (lp->cmd_head) - *ack_cmdp |= CUC_START; - lp->scb.pa_cmd = va_to_pa(lp->cmd_head); - spin_unlock_irqrestore(&lp->cmd_lock, flags); -} - -static irqreturn_t -i596_interrupt(int irq, void *dev_instance) -{ - struct net_device *dev = dev_instance; - struct i596_private *lp = netdev_priv(dev); - unsigned short status, ack_cmd = 0; - int frames_in = 0; - - /* - * The 82596 examines the command, performs the required action, - * and then clears the SCB command word. - */ - if (lp->scb.command && i596_timeout(dev, "interrupt", 40)) - ; - - /* - * The status word indicates the status of the 82596. - * It is modified only by the 82596. - * - * [So, we must not clear it. I find often status 0xffff, - * which is not one of the values allowed by the docs.] - */ - status = lp->scb.status; -#if 0 - if (i596_debug) { - printk("%s: i596 interrupt, ", dev->name); - i596_out_status(status); - } -#endif - /* Impossible, but it happens - perhaps when we get - a receive interrupt but scb.pa_rfd is I596_NULL. */ - if (status == 0xffff) { - printk("%s: i596_interrupt: got status 0xffff\n", dev->name); - goto out; - } - - ack_cmd = (status & STAT_ACK); - - if (status & (STAT_CX | STAT_CNA)) - i596_handle_CU_completion(dev, lp, status, &ack_cmd); - - if (status & (STAT_FR | STAT_RNR)) { - /* Restart the receive unit when it got inactive somehow */ - if ((status & STAT_RNR) && netif_running(dev)) - ack_cmd |= RX_START; - - if (status & STAT_FR) { - frames_in = i596_rx(dev); - if (!frames_in) - printk("receive frame reported, but no frames\n"); - } - } - - /* acknowledge the interrupt */ - /* - if ((lp->scb.pa_cmd != I596_NULL) && netif_running(dev)) - ack_cmd |= CUC_START; - */ - - if (lp->scb.command && i596_timeout(dev, "i596 interrupt", 100)) - ; - - lp->scb.command = ack_cmd; - - CLEAR_INT(); - CA(); - - out: - return IRQ_HANDLED; -} - -static int i596_close(struct net_device *dev) { - struct i596_private *lp = netdev_priv(dev); - - netif_stop_queue(dev); - - if (i596_debug) - printk("%s: Shutting down ethercard, status was %4.4x.\n", - dev->name, lp->scb.status); - - lp->scb.command = (CUC_ABORT | RX_ABORT); - CA(); - - i596_cleanup_cmd(dev); - - if (lp->scb.command && i596_timeout(dev, "i596_close", 200)) - ; - - free_irq(dev->irq, dev); - remove_rx_bufs(dev); - - return 0; -} - -/* -* Set or clear the multicast filter for this adaptor. -*/ - -static void set_multicast_list(struct net_device *dev) { - struct i596_private *lp = netdev_priv(dev); - struct i596_cmd *cmd; - - if (i596_debug > 1) - printk ("%s: set multicast list %d\n", - dev->name, netdev_mc_count(dev)); - - if (!netdev_mc_empty(dev)) { - struct netdev_hw_addr *ha; - char *cp; - cmd = kmalloc(sizeof(struct i596_cmd) + 2 + - netdev_mc_count(dev) * 6, GFP_ATOMIC); - if (cmd == NULL) { - printk (KERN_ERR "%s: set_multicast Memory squeeze.\n", dev->name); - return; - } - cmd->command = CmdMulticastList; - *((unsigned short *) (cmd + 1)) = netdev_mc_count(dev) * 6; - cp = ((char *)(cmd + 1))+2; - netdev_for_each_mc_addr(ha, dev) { - memcpy(cp, ha->addr, 6); - cp += 6; - } - if (i596_debug & LOG_SRCDST) - print_eth (((char *)(cmd + 1)) + 2); - i596_add_cmd(dev, cmd); - } else { - if (lp->set_conf.pa_next != I596_NULL) { - return; - } - if (netdev_mc_empty(dev) && - !(dev->flags & (IFF_PROMISC | IFF_ALLMULTI))) { - lp->i596_config[8] &= ~0x01; - } else { - lp->i596_config[8] |= 0x01; - } - - i596_add_cmd(dev, &lp->set_conf); - } -} - -MODULE_AUTHOR("Ard van Breemen <ard@cstmel.nl.eu.org>"); -MODULE_DESCRIPTION("Intel Panther onboard i82596 driver"); -MODULE_LICENSE("GPL"); - -static struct net_device *dev_lp486e; -static int full_duplex; -static int options; -static int io = IOADDR; -static int irq = IRQ; - -module_param(debug, int, 0); -//module_param(max_interrupt_work, int, 0); -//module_param(reverse_probe, int, 0); -//module_param(rx_copybreak, int, 0); -module_param(options, int, 0); -module_param(full_duplex, int, 0); - -static int __init lp486e_init_module(void) { - int err; - struct net_device *dev = alloc_etherdev(sizeof(struct i596_private)); - if (!dev) - return -ENOMEM; - - dev->irq = irq; - dev->base_addr = io; - err = lp486e_probe(dev); - if (err) { - free_netdev(dev); - return err; - } - err = register_netdev(dev); - if (err) { - release_region(dev->base_addr, LP486E_TOTAL_SIZE); - free_netdev(dev); - return err; - } - dev_lp486e = dev; - full_duplex = 0; - options = 0; - return 0; -} - -static void __exit lp486e_cleanup_module(void) { - unregister_netdev(dev_lp486e); - release_region(dev_lp486e->base_addr, LP486E_TOTAL_SIZE); - free_netdev(dev_lp486e); -} - -module_init(lp486e_init_module); -module_exit(lp486e_cleanup_module); diff --git a/drivers/net/ethernet/i825xx/ni52.c b/drivers/net/ethernet/i825xx/ni52.c deleted file mode 100644 index 272976e1bb0f..000000000000 --- a/drivers/net/ethernet/i825xx/ni52.c +++ /dev/null @@ -1,1346 +0,0 @@ -/* - * net-3-driver for the NI5210 card (i82586 Ethernet chip) - * - * This is an extension to the Linux operating system, and is covered by the - * same GNU General Public License that covers that work. - * - * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later) - * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de) - * [feel free to mail ....] - * - * when using as module: (no autoprobing!) - * run with e.g: - * insmod ni52.o io=0x360 irq=9 memstart=0xd0000 memend=0xd4000 - * - * CAN YOU PLEASE REPORT ME YOUR PERFORMANCE EXPERIENCES !!. - * - * If you find a bug, please report me: - * The kernel panic output and any kmsg from the ni52 driver - * the ni5210-driver-version and the linux-kernel version - * how many shared memory (memsize) on the netcard, - * bootprom: yes/no, base_addr, mem_start - * maybe the ni5210-card revision and the i82586 version - * - * autoprobe for: base_addr: 0x300,0x280,0x360,0x320,0x340 - * mem_start: 0xd0000,0xd2000,0xc8000,0xca000,0xd4000,0xd6000, - * 0xd8000,0xcc000,0xce000,0xda000,0xdc000 - * - * sources: - * skeleton.c from Donald Becker - * - * I have also done a look in the following sources: (mail me if you need them) - * crynwr-packet-driver by Russ Nelson - * Garret A. Wollman's (fourth) i82586-driver for BSD - * (before getting an i82596 (yes 596 not 586) manual, the existing drivers - * helped me a lot to understand this tricky chip.) - * - * Known Problems: - * The internal sysbus seems to be slow. So we often lose packets because of - * overruns while receiving from a fast remote host. - * This can slow down TCP connections. Maybe the newer ni5210 cards are - * better. My experience is, that if a machine sends with more than about - * 500-600K/s the fifo/sysbus overflows. - * - * IMPORTANT NOTE: - * On fast networks, it's a (very) good idea to have 16K shared memory. With - * 8K, we can store only 4 receive frames, so it can (easily) happen that a - * remote machine 'overruns' our system. - * - * Known i82586/card problems (I'm sure, there are many more!): - * Running the NOP-mode, the i82586 sometimes seems to forget to report - * every xmit-interrupt until we restart the CU. - * Another MAJOR bug is, that the RU sometimes seems to ignore the EL-Bit - * in the RBD-Struct which indicates an end of the RBD queue. - * Instead, the RU fetches another (randomly selected and - * usually used) RBD and begins to fill it. (Maybe, this happens only if - * the last buffer from the previous RFD fits exact into the queue and - * the next RFD can't fetch an initial RBD. Anyone knows more? ) - * - * results from ftp performance tests with Linux 1.2.5 - * send and receive about 350-400 KByte/s (peak up to 460 kbytes/s) - * sending in NOP-mode: peak performance up to 530K/s (but better don't - * run this mode) - */ - -/* - * 29.Sept.96: virt_to_bus changes for new memory scheme - * 19.Feb.96: more Mcast changes, module support (MH) - * - * 18.Nov.95: Mcast changes (AC). - * - * 23.April.95: fixed(?) receiving problems by configuring a RFD more - * than the number of RBD's. Can maybe cause other problems. - * 18.April.95: Added MODULE support (MH) - * 17.April.95: MC related changes in init586() and set_multicast_list(). - * removed use of 'jiffies' in init586() (MH) - * - * 19.Sep.94: Added Multicast support (not tested yet) (MH) - * - * 18.Sep.94: Workaround for 'EL-Bug'. Removed flexible RBD-handling. - * Now, every RFD has exact one RBD. (MH) - * - * 14.Sep.94: added promiscuous mode, a few cleanups (MH) - * - * 19.Aug.94: changed request_irq() parameter (MH) - * - * 20.July.94: removed cleanup bugs, removed a 16K-mem-probe-bug (MH) - * - * 19.July.94: lotsa cleanups .. (MH) - * - * 17.July.94: some patches ... verified to run with 1.1.29 (MH) - * - * 4.July.94: patches for Linux 1.1.24 (MH) - * - * 26.March.94: patches for Linux 1.0 and iomem-auto-probe (MH) - * - * 30.Sep.93: Added nop-chain .. driver now runs with only one Xmit-Buff, - * too (MH) - * - * < 30.Sep.93: first versions - */ - -static int debuglevel; /* debug-printk 0: off 1: a few 2: more */ -static int automatic_resume; /* experimental .. better should be zero */ -static int rfdadd; /* rfdadd=1 may be better for 8K MEM cards */ -static int fifo = 0x8; /* don't change */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/bitops.h> -#include <asm/io.h> - -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> - -#include "ni52.h" - -#define DRV_NAME "ni52" - -#define DEBUG /* debug on */ -#define SYSBUSVAL 1 /* 8 Bit */ - -#define ni_attn586() { outb(0, dev->base_addr + NI52_ATTENTION); } -#define ni_reset586() { outb(0, dev->base_addr + NI52_RESET); } -#define ni_disint() { outb(0, dev->base_addr + NI52_INTDIS); } -#define ni_enaint() { outb(0, dev->base_addr + NI52_INTENA); } - -#define make32(ptr16) ((void __iomem *)(p->memtop + (short) (ptr16))) -#define make24(ptr32) ((char __iomem *)(ptr32)) - p->base -#define make16(ptr32) ((unsigned short) ((char __iomem *)(ptr32)\ - - p->memtop)) - -/******************* how to calculate the buffers ***************************** - - * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works - * --------------- in a different (more stable?) mode. Only in this mode it's - * possible to configure the driver with 'NO_NOPCOMMANDS' - -sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8; -sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT -sizeof(rfd) = 24; sizeof(rbd) = 12; -sizeof(tbd) = 8; sizeof(transmit_cmd) = 16; -sizeof(nop_cmd) = 8; - - * if you don't know the driver, better do not change these values: */ - -#define RECV_BUFF_SIZE 1524 /* slightly oversized */ -#define XMIT_BUFF_SIZE 1524 /* slightly oversized */ -#define NUM_XMIT_BUFFS 1 /* config for both, 8K and 16K shmem */ -#define NUM_RECV_BUFFS_8 4 /* config for 8K shared mem */ -#define NUM_RECV_BUFFS_16 9 /* config for 16K shared mem */ -#define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */ - -/**************************************************************************/ - - -#define NI52_TOTAL_SIZE 16 -#define NI52_ADDR0 0x02 -#define NI52_ADDR1 0x07 -#define NI52_ADDR2 0x01 - -static int ni52_probe1(struct net_device *dev, int ioaddr); -static irqreturn_t ni52_interrupt(int irq, void *dev_id); -static int ni52_open(struct net_device *dev); -static int ni52_close(struct net_device *dev); -static netdev_tx_t ni52_send_packet(struct sk_buff *, struct net_device *); -static struct net_device_stats *ni52_get_stats(struct net_device *dev); -static void set_multicast_list(struct net_device *dev); -static void ni52_timeout(struct net_device *dev); - -/* helper-functions */ -static int init586(struct net_device *dev); -static int check586(struct net_device *dev, unsigned size); -static void alloc586(struct net_device *dev); -static void startrecv586(struct net_device *dev); -static void __iomem *alloc_rfa(struct net_device *dev, void __iomem *ptr); -static void ni52_rcv_int(struct net_device *dev); -static void ni52_xmt_int(struct net_device *dev); -static void ni52_rnr_int(struct net_device *dev); - -struct priv { - char __iomem *base; - char __iomem *mapped; - char __iomem *memtop; - spinlock_t spinlock; - int reset; - struct rfd_struct __iomem *rfd_last, *rfd_top, *rfd_first; - struct scp_struct __iomem *scp; - struct iscp_struct __iomem *iscp; - struct scb_struct __iomem *scb; - struct tbd_struct __iomem *xmit_buffs[NUM_XMIT_BUFFS]; -#if (NUM_XMIT_BUFFS == 1) - struct transmit_cmd_struct __iomem *xmit_cmds[2]; - struct nop_cmd_struct __iomem *nop_cmds[2]; -#else - struct transmit_cmd_struct __iomem *xmit_cmds[NUM_XMIT_BUFFS]; - struct nop_cmd_struct __iomem *nop_cmds[NUM_XMIT_BUFFS]; -#endif - int nop_point, num_recv_buffs; - char __iomem *xmit_cbuffs[NUM_XMIT_BUFFS]; - int xmit_count, xmit_last; -}; - -/* wait for command with timeout: */ -static void wait_for_scb_cmd(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); - int i; - for (i = 0; i < 16384; i++) { - if (readb(&p->scb->cmd_cuc) == 0) - break; - udelay(4); - if (i == 16383) { - printk(KERN_ERR "%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n", - dev->name, readb(&p->scb->cmd_cuc), readb(&p->scb->cus)); - if (!p->reset) { - p->reset = 1; - ni_reset586(); - } - } - } -} - -static void wait_for_scb_cmd_ruc(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); - int i; - for (i = 0; i < 16384; i++) { - if (readb(&p->scb->cmd_ruc) == 0) - break; - udelay(4); - if (i == 16383) { - printk(KERN_ERR "%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n", - dev->name, readb(&p->scb->cmd_ruc), - readb(&p->scb->rus)); - if (!p->reset) { - p->reset = 1; - ni_reset586(); - } - } - } -} - -static void wait_for_stat_compl(void __iomem *p) -{ - struct nop_cmd_struct __iomem *addr = p; - int i; - for (i = 0; i < 32767; i++) { - if (readw(&((addr)->cmd_status)) & STAT_COMPL) - break; - udelay(32); - } -} - -/********************************************** - * close device - */ -static int ni52_close(struct net_device *dev) -{ - free_irq(dev->irq, dev); - ni_reset586(); /* the hard way to stop the receiver */ - netif_stop_queue(dev); - return 0; -} - -/********************************************** - * open device - */ -static int ni52_open(struct net_device *dev) -{ - int ret; - - ni_disint(); - alloc586(dev); - init586(dev); - startrecv586(dev); - ni_enaint(); - - ret = request_irq(dev->irq, ni52_interrupt, 0, dev->name, dev); - if (ret) { - ni_reset586(); - return ret; - } - netif_start_queue(dev); - return 0; /* most done by init */ -} - -static int check_iscp(struct net_device *dev, void __iomem *addr) -{ - struct iscp_struct __iomem *iscp = addr; - struct priv *p = netdev_priv(dev); - memset_io(iscp, 0, sizeof(struct iscp_struct)); - - writel(make24(iscp), &p->scp->iscp); - writeb(1, &iscp->busy); - - ni_reset586(); - ni_attn586(); - mdelay(32); /* wait a while... */ - /* i82586 clears 'busy' after successful init */ - if (readb(&iscp->busy)) - return 0; - return 1; -} - -/********************************************** - * Check to see if there's an 82586 out there. - */ -static int check586(struct net_device *dev, unsigned size) -{ - struct priv *p = netdev_priv(dev); - int i; - - p->mapped = ioremap(dev->mem_start, size); - if (!p->mapped) - return 0; - - p->base = p->mapped + size - 0x01000000; - p->memtop = p->mapped + size; - p->scp = (struct scp_struct __iomem *)(p->base + SCP_DEFAULT_ADDRESS); - p->scb = (struct scb_struct __iomem *) p->mapped; - p->iscp = (struct iscp_struct __iomem *)p->scp - 1; - memset_io(p->scp, 0, sizeof(struct scp_struct)); - for (i = 0; i < sizeof(struct scp_struct); i++) - /* memory was writeable? */ - if (readb((char __iomem *)p->scp + i)) - goto Enodev; - writeb(SYSBUSVAL, &p->scp->sysbus); /* 1 = 8Bit-Bus, 0 = 16 Bit */ - if (readb(&p->scp->sysbus) != SYSBUSVAL) - goto Enodev; - - if (!check_iscp(dev, p->mapped)) - goto Enodev; - if (!check_iscp(dev, p->iscp)) - goto Enodev; - return 1; -Enodev: - iounmap(p->mapped); - return 0; -} - -/****************************************************************** - * set iscp at the right place, called by ni52_probe1 and open586. - */ -static void alloc586(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); - - ni_reset586(); - mdelay(32); - - memset_io(p->iscp, 0, sizeof(struct iscp_struct)); - memset_io(p->scp , 0, sizeof(struct scp_struct)); - - writel(make24(p->iscp), &p->scp->iscp); - writeb(SYSBUSVAL, &p->scp->sysbus); - writew(make16(p->scb), &p->iscp->scb_offset); - - writeb(1, &p->iscp->busy); - ni_reset586(); - ni_attn586(); - - mdelay(32); - - if (readb(&p->iscp->busy)) - printk(KERN_ERR "%s: Init-Problems (alloc).\n", dev->name); - - p->reset = 0; - - memset_io(p->scb, 0, sizeof(struct scb_struct)); -} - -/* set: io,irq,memstart,memend or set it when calling insmod */ -static int irq = 9; -static int io = 0x300; -static long memstart; /* e.g 0xd0000 */ -static long memend; /* e.g 0xd4000 */ - -/********************************************** - * probe the ni5210-card - */ -struct net_device * __init ni52_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct priv)); - static const int ports[] = {0x300, 0x280, 0x360, 0x320, 0x340, 0}; - const int *port; - struct priv *p; - int err = 0; - - if (!dev) - return ERR_PTR(-ENOMEM); - - p = netdev_priv(dev); - - if (unit >= 0) { - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - io = dev->base_addr; - irq = dev->irq; - memstart = dev->mem_start; - memend = dev->mem_end; - } - - if (io > 0x1ff) { /* Check a single specified location. */ - err = ni52_probe1(dev, io); - } else if (io > 0) { /* Don't probe at all. */ - err = -ENXIO; - } else { - for (port = ports; *port && ni52_probe1(dev, *port) ; port++) - ; - if (*port) - goto got_it; -#ifdef FULL_IO_PROBE - for (io = 0x200; io < 0x400 && ni52_probe1(dev, io); io += 8) - ; - if (io < 0x400) - goto got_it; -#endif - err = -ENODEV; - } - if (err) - goto out; -got_it: - err = register_netdev(dev); - if (err) - goto out1; - return dev; -out1: - iounmap(p->mapped); - release_region(dev->base_addr, NI52_TOTAL_SIZE); -out: - free_netdev(dev); - return ERR_PTR(err); -} - -static const struct net_device_ops ni52_netdev_ops = { - .ndo_open = ni52_open, - .ndo_stop = ni52_close, - .ndo_get_stats = ni52_get_stats, - .ndo_tx_timeout = ni52_timeout, - .ndo_start_xmit = ni52_send_packet, - .ndo_set_rx_mode = set_multicast_list, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -static int __init ni52_probe1(struct net_device *dev, int ioaddr) -{ - int i, size, retval; - struct priv *priv = netdev_priv(dev); - - dev->base_addr = ioaddr; - dev->irq = irq; - dev->mem_start = memstart; - dev->mem_end = memend; - - spin_lock_init(&priv->spinlock); - - if (!request_region(ioaddr, NI52_TOTAL_SIZE, DRV_NAME)) - return -EBUSY; - - if (!(inb(ioaddr+NI52_MAGIC1) == NI52_MAGICVAL1) || - !(inb(ioaddr+NI52_MAGIC2) == NI52_MAGICVAL2)) { - retval = -ENODEV; - goto out; - } - - for (i = 0; i < ETH_ALEN; i++) - dev->dev_addr[i] = inb(dev->base_addr+i); - - if (dev->dev_addr[0] != NI52_ADDR0 || dev->dev_addr[1] != NI52_ADDR1 || - dev->dev_addr[2] != NI52_ADDR2) { - retval = -ENODEV; - goto out; - } - - printk(KERN_INFO "%s: NI5210 found at %#3lx, ", - dev->name, dev->base_addr); - - /* - * check (or search) IO-Memory, 8K and 16K - */ -#ifdef MODULE - size = dev->mem_end - dev->mem_start; - if (size != 0x2000 && size != 0x4000) { - printk("\n"); - printk(KERN_ERR "%s: Invalid memory size %d. Allowed is 0x2000 or 0x4000 bytes.\n", dev->name, size); - retval = -ENODEV; - goto out; - } - if (!check586(dev, size)) { - printk(KERN_ERR "?memcheck, Can't find memory at 0x%lx with size %d!\n", dev->mem_start, size); - retval = -ENODEV; - goto out; - } -#else - if (dev->mem_start != 0) { - /* no auto-mem-probe */ - size = 0x4000; /* check for 16K mem */ - if (!check586(dev, size)) { - size = 0x2000; /* check for 8K mem */ - if (!check586(dev, size)) { - printk(KERN_ERR "?memprobe, Can't find memory at 0x%lx!\n", dev->mem_start); - retval = -ENODEV; - goto out; - } - } - } else { - static const unsigned long memaddrs[] = { - 0xc8000, 0xca000, 0xcc000, 0xce000, 0xd0000, 0xd2000, - 0xd4000, 0xd6000, 0xd8000, 0xda000, 0xdc000, 0 - }; - for (i = 0;; i++) { - if (!memaddrs[i]) { - printk(KERN_ERR "?memprobe, Can't find io-memory!\n"); - retval = -ENODEV; - goto out; - } - dev->mem_start = memaddrs[i]; - size = 0x2000; /* check for 8K mem */ - if (check586(dev, size)) - /* 8K-check */ - break; - size = 0x4000; /* check for 16K mem */ - if (check586(dev, size)) - /* 16K-check */ - break; - } - } - /* set mem_end showed by 'ifconfig' */ - dev->mem_end = dev->mem_start + size; -#endif - - alloc586(dev); - - /* set number of receive-buffs according to memsize */ - if (size == 0x2000) - priv->num_recv_buffs = NUM_RECV_BUFFS_8; - else - priv->num_recv_buffs = NUM_RECV_BUFFS_16; - - printk(KERN_DEBUG "Memaddr: 0x%lx, Memsize: %d, ", - dev->mem_start, size); - - if (dev->irq < 2) { - unsigned long irq_mask; - - irq_mask = probe_irq_on(); - ni_reset586(); - ni_attn586(); - - mdelay(20); - dev->irq = probe_irq_off(irq_mask); - if (!dev->irq) { - printk("?autoirq, Failed to detect IRQ line!\n"); - retval = -EAGAIN; - iounmap(priv->mapped); - goto out; - } - printk("IRQ %d (autodetected).\n", dev->irq); - } else { - if (dev->irq == 2) - dev->irq = 9; - printk("IRQ %d (assigned and not checked!).\n", dev->irq); - } - - dev->netdev_ops = &ni52_netdev_ops; - dev->watchdog_timeo = HZ/20; - - return 0; -out: - release_region(ioaddr, NI52_TOTAL_SIZE); - return retval; -} - -/********************************************** - * init the chip (ni52-interrupt should be disabled?!) - * needs a correct 'allocated' memory - */ - -static int init586(struct net_device *dev) -{ - void __iomem *ptr; - int i, result = 0; - struct priv *p = netdev_priv(dev); - struct configure_cmd_struct __iomem *cfg_cmd; - struct iasetup_cmd_struct __iomem *ias_cmd; - struct tdr_cmd_struct __iomem *tdr_cmd; - struct mcsetup_cmd_struct __iomem *mc_cmd; - struct netdev_hw_addr *ha; - int num_addrs = netdev_mc_count(dev); - - ptr = p->scb + 1; - - cfg_cmd = ptr; /* configure-command */ - writew(0, &cfg_cmd->cmd_status); - writew(CMD_CONFIGURE | CMD_LAST, &cfg_cmd->cmd_cmd); - writew(0xFFFF, &cfg_cmd->cmd_link); - - /* number of cfg bytes */ - writeb(0x0a, &cfg_cmd->byte_cnt); - /* fifo-limit (8=tx:32/rx:64) */ - writeb(fifo, &cfg_cmd->fifo); - /* hold or discard bad recv frames (bit 7) */ - writeb(0x40, &cfg_cmd->sav_bf); - /* addr_len |!src_insert |pre-len |loopback */ - writeb(0x2e, &cfg_cmd->adr_len); - writeb(0x00, &cfg_cmd->priority); - writeb(0x60, &cfg_cmd->ifs); - writeb(0x00, &cfg_cmd->time_low); - writeb(0xf2, &cfg_cmd->time_high); - writeb(0x00, &cfg_cmd->promisc); - if (dev->flags & IFF_ALLMULTI) { - int len = ((char __iomem *)p->iscp - (char __iomem *)ptr - 8) / 6; - if (num_addrs > len) { - printk(KERN_ERR "%s: switching to promisc. mode\n", - dev->name); - writeb(0x01, &cfg_cmd->promisc); - } - } - if (dev->flags & IFF_PROMISC) - writeb(0x01, &cfg_cmd->promisc); - writeb(0x00, &cfg_cmd->carr_coll); - writew(make16(cfg_cmd), &p->scb->cbl_offset); - writeb(0, &p->scb->cmd_ruc); - - writeb(CUC_START, &p->scb->cmd_cuc); /* cmd.-unit start */ - ni_attn586(); - - wait_for_stat_compl(cfg_cmd); - - if ((readw(&cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != - (STAT_COMPL|STAT_OK)) { - printk(KERN_ERR "%s: configure command failed: %x\n", - dev->name, readw(&cfg_cmd->cmd_status)); - return 1; - } - - /* - * individual address setup - */ - - ias_cmd = ptr; - - writew(0, &ias_cmd->cmd_status); - writew(CMD_IASETUP | CMD_LAST, &ias_cmd->cmd_cmd); - writew(0xffff, &ias_cmd->cmd_link); - - memcpy_toio(&ias_cmd->iaddr, (char *)dev->dev_addr, ETH_ALEN); - - writew(make16(ias_cmd), &p->scb->cbl_offset); - - writeb(CUC_START, &p->scb->cmd_cuc); /* cmd.-unit start */ - ni_attn586(); - - wait_for_stat_compl(ias_cmd); - - if ((readw(&ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != - (STAT_OK|STAT_COMPL)) { - printk(KERN_ERR "%s (ni52): individual address setup command failed: %04x\n", dev->name, readw(&ias_cmd->cmd_status)); - return 1; - } - - /* - * TDR, wire check .. e.g. no resistor e.t.c - */ - - tdr_cmd = ptr; - - writew(0, &tdr_cmd->cmd_status); - writew(CMD_TDR | CMD_LAST, &tdr_cmd->cmd_cmd); - writew(0xffff, &tdr_cmd->cmd_link); - writew(0, &tdr_cmd->status); - - writew(make16(tdr_cmd), &p->scb->cbl_offset); - writeb(CUC_START, &p->scb->cmd_cuc); /* cmd.-unit start */ - ni_attn586(); - - wait_for_stat_compl(tdr_cmd); - - if (!(readw(&tdr_cmd->cmd_status) & STAT_COMPL)) - printk(KERN_ERR "%s: Problems while running the TDR.\n", - dev->name); - else { - udelay(16); - result = readw(&tdr_cmd->status); - writeb(readb(&p->scb->cus) & STAT_MASK, &p->scb->cmd_cuc); - ni_attn586(); /* ack the interrupts */ - - if (result & TDR_LNK_OK) - ; - else if (result & TDR_XCVR_PRB) - printk(KERN_ERR "%s: TDR: Transceiver problem. Check the cable(s)!\n", - dev->name); - else if (result & TDR_ET_OPN) - printk(KERN_ERR "%s: TDR: No correct termination %d clocks away.\n", - dev->name, result & TDR_TIMEMASK); - else if (result & TDR_ET_SRT) { - /* time == 0 -> strange :-) */ - if (result & TDR_TIMEMASK) - printk(KERN_ERR "%s: TDR: Detected a short circuit %d clocks away.\n", - dev->name, result & TDR_TIMEMASK); - } else - printk(KERN_ERR "%s: TDR: Unknown status %04x\n", - dev->name, result); - } - - /* - * Multicast setup - */ - if (num_addrs && !(dev->flags & IFF_PROMISC)) { - mc_cmd = ptr; - writew(0, &mc_cmd->cmd_status); - writew(CMD_MCSETUP | CMD_LAST, &mc_cmd->cmd_cmd); - writew(0xffff, &mc_cmd->cmd_link); - writew(num_addrs * 6, &mc_cmd->mc_cnt); - - i = 0; - netdev_for_each_mc_addr(ha, dev) - memcpy_toio(mc_cmd->mc_list[i++], ha->addr, 6); - - writew(make16(mc_cmd), &p->scb->cbl_offset); - writeb(CUC_START, &p->scb->cmd_cuc); - ni_attn586(); - - wait_for_stat_compl(mc_cmd); - - if ((readw(&mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) - != (STAT_COMPL|STAT_OK)) - printk(KERN_ERR "%s: Can't apply multicast-address-list.\n", dev->name); - } - - /* - * alloc nop/xmit-cmds - */ -#if (NUM_XMIT_BUFFS == 1) - for (i = 0; i < 2; i++) { - p->nop_cmds[i] = ptr; - writew(CMD_NOP, &p->nop_cmds[i]->cmd_cmd); - writew(0, &p->nop_cmds[i]->cmd_status); - writew(make16(p->nop_cmds[i]), &p->nop_cmds[i]->cmd_link); - ptr = ptr + sizeof(struct nop_cmd_struct); - } -#else - for (i = 0; i < NUM_XMIT_BUFFS; i++) { - p->nop_cmds[i] = ptr; - writew(CMD_NOP, &p->nop_cmds[i]->cmd_cmd); - writew(0, &p->nop_cmds[i]->cmd_status); - writew(make16(p->nop_cmds[i]), &p->nop_cmds[i]->cmd_link); - ptr = ptr + sizeof(struct nop_cmd_struct); - } -#endif - - ptr = alloc_rfa(dev, ptr); /* init receive-frame-area */ - - /* - * alloc xmit-buffs / init xmit_cmds - */ - for (i = 0; i < NUM_XMIT_BUFFS; i++) { - /* Transmit cmd/buff 0 */ - p->xmit_cmds[i] = ptr; - ptr = ptr + sizeof(struct transmit_cmd_struct); - p->xmit_cbuffs[i] = ptr; /* char-buffs */ - ptr = ptr + XMIT_BUFF_SIZE; - p->xmit_buffs[i] = ptr; /* TBD */ - ptr = ptr + sizeof(struct tbd_struct); - if ((void __iomem *)ptr > (void __iomem *)p->iscp) { - printk(KERN_ERR "%s: not enough shared-mem for your configuration!\n", - dev->name); - return 1; - } - memset_io(p->xmit_cmds[i], 0, - sizeof(struct transmit_cmd_struct)); - memset_io(p->xmit_buffs[i], 0, - sizeof(struct tbd_struct)); - writew(make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]), - &p->xmit_cmds[i]->cmd_link); - writew(STAT_COMPL, &p->xmit_cmds[i]->cmd_status); - writew(CMD_XMIT|CMD_INT, &p->xmit_cmds[i]->cmd_cmd); - writew(make16(p->xmit_buffs[i]), &p->xmit_cmds[i]->tbd_offset); - writew(0xffff, &p->xmit_buffs[i]->next); - writel(make24(p->xmit_cbuffs[i]), &p->xmit_buffs[i]->buffer); - } - - p->xmit_count = 0; - p->xmit_last = 0; -#ifndef NO_NOPCOMMANDS - p->nop_point = 0; -#endif - - /* - * 'start transmitter' - */ -#ifndef NO_NOPCOMMANDS - writew(make16(p->nop_cmds[0]), &p->scb->cbl_offset); - writeb(CUC_START, &p->scb->cmd_cuc); - ni_attn586(); - wait_for_scb_cmd(dev); -#else - writew(make16(p->xmit_cmds[0]), &p->xmit_cmds[0]->cmd_link); - writew(CMD_XMIT | CMD_SUSPEND | CMD_INT, &p->xmit_cmds[0]->cmd_cmd); -#endif - - /* - * ack. interrupts - */ - writeb(readb(&p->scb->cus) & STAT_MASK, &p->scb->cmd_cuc); - ni_attn586(); - udelay(16); - - ni_enaint(); - - return 0; -} - -/****************************************************** - * This is a helper routine for ni52_rnr_int() and init586(). - * It sets up the Receive Frame Area (RFA). - */ - -static void __iomem *alloc_rfa(struct net_device *dev, void __iomem *ptr) -{ - struct rfd_struct __iomem *rfd = ptr; - struct rbd_struct __iomem *rbd; - int i; - struct priv *p = netdev_priv(dev); - - memset_io(rfd, 0, - sizeof(struct rfd_struct) * (p->num_recv_buffs + rfdadd)); - p->rfd_first = rfd; - - for (i = 0; i < (p->num_recv_buffs + rfdadd); i++) { - writew(make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd)), - &rfd[i].next); - writew(0xffff, &rfd[i].rbd_offset); - } - /* RU suspend */ - writeb(RFD_SUSP, &rfd[p->num_recv_buffs-1+rfdadd].last); - - ptr = rfd + (p->num_recv_buffs + rfdadd); - - rbd = ptr; - ptr = rbd + p->num_recv_buffs; - - /* clr descriptors */ - memset_io(rbd, 0, sizeof(struct rbd_struct) * (p->num_recv_buffs)); - - for (i = 0; i < p->num_recv_buffs; i++) { - writew(make16(rbd + (i+1) % p->num_recv_buffs), &rbd[i].next); - writew(RECV_BUFF_SIZE, &rbd[i].size); - writel(make24(ptr), &rbd[i].buffer); - ptr = ptr + RECV_BUFF_SIZE; - } - p->rfd_top = p->rfd_first; - p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd); - - writew(make16(p->rfd_first), &p->scb->rfa_offset); - writew(make16(rbd), &p->rfd_first->rbd_offset); - - return ptr; -} - - -/************************************************** - * Interrupt Handler ... - */ - -static irqreturn_t ni52_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - unsigned int stat; - int cnt = 0; - struct priv *p; - - p = netdev_priv(dev); - - if (debuglevel > 1) - printk("I"); - - spin_lock(&p->spinlock); - - wait_for_scb_cmd(dev); /* wait for last command */ - - while ((stat = readb(&p->scb->cus) & STAT_MASK)) { - writeb(stat, &p->scb->cmd_cuc); - ni_attn586(); - - if (stat & STAT_FR) /* received a frame */ - ni52_rcv_int(dev); - - if (stat & STAT_RNR) { /* RU went 'not ready' */ - printk("(R)"); - if (readb(&p->scb->rus) & RU_SUSPEND) { - /* special case: RU_SUSPEND */ - wait_for_scb_cmd(dev); - writeb(RUC_RESUME, &p->scb->cmd_ruc); - ni_attn586(); - wait_for_scb_cmd_ruc(dev); - } else { - printk(KERN_ERR "%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n", - dev->name, stat, readb(&p->scb->rus)); - ni52_rnr_int(dev); - } - } - - /* Command with I-bit set complete */ - if (stat & STAT_CX) - ni52_xmt_int(dev); - -#ifndef NO_NOPCOMMANDS - if (stat & STAT_CNA) { /* CU went 'not ready' */ - if (netif_running(dev)) - printk(KERN_ERR "%s: oops! CU has left active state. stat: %04x/%02x.\n", - dev->name, stat, readb(&p->scb->cus)); - } -#endif - - if (debuglevel > 1) - printk("%d", cnt++); - - /* Wait for ack. (ni52_xmt_int can be faster than ack!!) */ - wait_for_scb_cmd(dev); - if (readb(&p->scb->cmd_cuc)) { /* timed out? */ - printk(KERN_ERR "%s: Acknowledge timed out.\n", - dev->name); - ni_disint(); - break; - } - } - spin_unlock(&p->spinlock); - - if (debuglevel > 1) - printk("i"); - return IRQ_HANDLED; -} - -/******************************************************* - * receive-interrupt - */ - -static void ni52_rcv_int(struct net_device *dev) -{ - int status, cnt = 0; - unsigned short totlen; - struct sk_buff *skb; - struct rbd_struct __iomem *rbd; - struct priv *p = netdev_priv(dev); - - if (debuglevel > 0) - printk("R"); - - for (; (status = readb(&p->rfd_top->stat_high)) & RFD_COMPL;) { - rbd = make32(readw(&p->rfd_top->rbd_offset)); - if (status & RFD_OK) { /* frame received without error? */ - totlen = readw(&rbd->status); - if (totlen & RBD_LAST) { - /* the first and the last buffer? */ - totlen &= RBD_MASK; /* length of this frame */ - writew(0x00, &rbd->status); - skb = netdev_alloc_skb(dev, totlen + 2); - if (skb != NULL) { - skb_reserve(skb, 2); - skb_put(skb, totlen); - memcpy_fromio(skb->data, p->base + readl(&rbd->buffer), totlen); - skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += totlen; - } else - dev->stats.rx_dropped++; - } else { - int rstat; - /* free all RBD's until RBD_LAST is set */ - totlen = 0; - while (!((rstat = readw(&rbd->status)) & RBD_LAST)) { - totlen += rstat & RBD_MASK; - if (!rstat) { - printk(KERN_ERR "%s: Whoops .. no end mark in RBD list\n", dev->name); - break; - } - writew(0, &rbd->status); - rbd = make32(readw(&rbd->next)); - } - totlen += rstat & RBD_MASK; - writew(0, &rbd->status); - printk(KERN_ERR "%s: received oversized frame! length: %d\n", - dev->name, totlen); - dev->stats.rx_dropped++; - } - } else {/* frame !(ok), only with 'save-bad-frames' */ - printk(KERN_ERR "%s: oops! rfd-error-status: %04x\n", - dev->name, status); - dev->stats.rx_errors++; - } - writeb(0, &p->rfd_top->stat_high); - writeb(RFD_SUSP, &p->rfd_top->last); /* maybe exchange by RFD_LAST */ - writew(0xffff, &p->rfd_top->rbd_offset); - writeb(0, &p->rfd_last->last); /* delete RFD_SUSP */ - p->rfd_last = p->rfd_top; - p->rfd_top = make32(readw(&p->rfd_top->next)); /* step to next RFD */ - writew(make16(p->rfd_top), &p->scb->rfa_offset); - - if (debuglevel > 0) - printk("%d", cnt++); - } - - if (automatic_resume) { - wait_for_scb_cmd(dev); - writeb(RUC_RESUME, &p->scb->cmd_ruc); - ni_attn586(); - wait_for_scb_cmd_ruc(dev); - } - -#ifdef WAIT_4_BUSY - { - int i; - for (i = 0; i < 1024; i++) { - if (p->rfd_top->status) - break; - udelay(16); - if (i == 1023) - printk(KERN_ERR "%s: RU hasn't fetched next RFD (not busy/complete)\n", dev->name); - } - } -#endif - if (debuglevel > 0) - printk("r"); -} - -/********************************************************** - * handle 'Receiver went not ready'. - */ - -static void ni52_rnr_int(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); - - dev->stats.rx_errors++; - - wait_for_scb_cmd(dev); /* wait for the last cmd, WAIT_4_FULLSTAT?? */ - writeb(RUC_ABORT, &p->scb->cmd_ruc); /* usually the RU is in the 'no resource'-state .. abort it now. */ - ni_attn586(); - wait_for_scb_cmd_ruc(dev); /* wait for accept cmd. */ - - alloc_rfa(dev, p->rfd_first); - /* maybe add a check here, before restarting the RU */ - startrecv586(dev); /* restart RU */ - - printk(KERN_ERR "%s: Receive-Unit restarted. Status: %04x\n", - dev->name, readb(&p->scb->rus)); - -} - -/********************************************************** - * handle xmit - interrupt - */ - -static void ni52_xmt_int(struct net_device *dev) -{ - int status; - struct priv *p = netdev_priv(dev); - - if (debuglevel > 0) - printk("X"); - - status = readw(&p->xmit_cmds[p->xmit_last]->cmd_status); - if (!(status & STAT_COMPL)) - printk(KERN_ERR "%s: strange .. xmit-int without a 'COMPLETE'\n", dev->name); - - if (status & STAT_OK) { - dev->stats.tx_packets++; - dev->stats.collisions += (status & TCMD_MAXCOLLMASK); - } else { - dev->stats.tx_errors++; - if (status & TCMD_LATECOLL) { - printk(KERN_ERR "%s: late collision detected.\n", - dev->name); - dev->stats.collisions++; - } else if (status & TCMD_NOCARRIER) { - dev->stats.tx_carrier_errors++; - printk(KERN_ERR "%s: no carrier detected.\n", - dev->name); - } else if (status & TCMD_LOSTCTS) - printk(KERN_ERR "%s: loss of CTS detected.\n", - dev->name); - else if (status & TCMD_UNDERRUN) { - dev->stats.tx_fifo_errors++; - printk(KERN_ERR "%s: DMA underrun detected.\n", - dev->name); - } else if (status & TCMD_MAXCOLL) { - printk(KERN_ERR "%s: Max. collisions exceeded.\n", - dev->name); - dev->stats.collisions += 16; - } - } -#if (NUM_XMIT_BUFFS > 1) - if ((++p->xmit_last) == NUM_XMIT_BUFFS) - p->xmit_last = 0; -#endif - netif_wake_queue(dev); -} - -/*********************************************************** - * (re)start the receiver - */ - -static void startrecv586(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); - - wait_for_scb_cmd(dev); - wait_for_scb_cmd_ruc(dev); - writew(make16(p->rfd_first), &p->scb->rfa_offset); - writeb(RUC_START, &p->scb->cmd_ruc); - ni_attn586(); /* start cmd. */ - wait_for_scb_cmd_ruc(dev); - /* wait for accept cmd. (no timeout!!) */ -} - -static void ni52_timeout(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); -#ifndef NO_NOPCOMMANDS - if (readb(&p->scb->cus) & CU_ACTIVE) { /* COMMAND-UNIT active? */ - netif_wake_queue(dev); -#ifdef DEBUG - printk(KERN_ERR "%s: strange ... timeout with CU active?!?\n", - dev->name); - printk(KERN_ERR "%s: X0: %04x N0: %04x N1: %04x %d\n", - dev->name, (int)p->xmit_cmds[0]->cmd_status, - readw(&p->nop_cmds[0]->cmd_status), - readw(&p->nop_cmds[1]->cmd_status), - p->nop_point); -#endif - writeb(CUC_ABORT, &p->scb->cmd_cuc); - ni_attn586(); - wait_for_scb_cmd(dev); - writew(make16(p->nop_cmds[p->nop_point]), &p->scb->cbl_offset); - writeb(CUC_START, &p->scb->cmd_cuc); - ni_attn586(); - wait_for_scb_cmd(dev); - dev->trans_start = jiffies; /* prevent tx timeout */ - return 0; - } -#endif - { -#ifdef DEBUG - printk(KERN_ERR "%s: xmitter timed out, try to restart! stat: %02x\n", - dev->name, readb(&p->scb->cus)); - printk(KERN_ERR "%s: command-stats: %04x %04x\n", - dev->name, - readw(&p->xmit_cmds[0]->cmd_status), - readw(&p->xmit_cmds[1]->cmd_status)); - printk(KERN_ERR "%s: check, whether you set the right interrupt number!\n", - dev->name); -#endif - ni52_close(dev); - ni52_open(dev); - } - dev->trans_start = jiffies; /* prevent tx timeout */ -} - -/****************************************************** - * send frame - */ - -static netdev_tx_t ni52_send_packet(struct sk_buff *skb, - struct net_device *dev) -{ - int len, i; -#ifndef NO_NOPCOMMANDS - int next_nop; -#endif - struct priv *p = netdev_priv(dev); - - if (skb->len > XMIT_BUFF_SIZE) { - printk(KERN_ERR "%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n", dev->name, XMIT_BUFF_SIZE, skb->len); - return NETDEV_TX_OK; - } - - netif_stop_queue(dev); - - memcpy_toio(p->xmit_cbuffs[p->xmit_count], skb->data, skb->len); - len = skb->len; - if (len < ETH_ZLEN) { - len = ETH_ZLEN; - memset_io(p->xmit_cbuffs[p->xmit_count]+skb->len, 0, - len - skb->len); - } - -#if (NUM_XMIT_BUFFS == 1) -# ifdef NO_NOPCOMMANDS - -#ifdef DEBUG - if (readb(&p->scb->cus) & CU_ACTIVE) { - printk(KERN_ERR "%s: Hmmm .. CU is still running and we wanna send a new packet.\n", dev->name); - printk(KERN_ERR "%s: stat: %04x %04x\n", - dev->name, readb(&p->scb->cus), - readw(&p->xmit_cmds[0]->cmd_status)); - } -#endif - writew(TBD_LAST | len, &p->xmit_buffs[0]->size); - for (i = 0; i < 16; i++) { - writew(0, &p->xmit_cmds[0]->cmd_status); - wait_for_scb_cmd(dev); - if ((readb(&p->scb->cus) & CU_STATUS) == CU_SUSPEND) - writeb(CUC_RESUME, &p->scb->cmd_cuc); - else { - writew(make16(p->xmit_cmds[0]), &p->scb->cbl_offset); - writeb(CUC_START, &p->scb->cmd_cuc); - } - ni_attn586(); - if (!i) - dev_kfree_skb(skb); - wait_for_scb_cmd(dev); - /* test it, because CU sometimes doesn't start immediately */ - if (readb(&p->scb->cus) & CU_ACTIVE) - break; - if (readw(&p->xmit_cmds[0]->cmd_status)) - break; - if (i == 15) - printk(KERN_WARNING "%s: Can't start transmit-command.\n", dev->name); - } -# else - next_nop = (p->nop_point + 1) & 0x1; - writew(TBD_LAST | len, &p->xmit_buffs[0]->size); - writew(make16(p->nop_cmds[next_nop]), &p->xmit_cmds[0]->cmd_link); - writew(make16(p->nop_cmds[next_nop]), - &p->nop_cmds[next_nop]->cmd_link); - writew(0, &p->xmit_cmds[0]->cmd_status); - writew(0, &p->nop_cmds[next_nop]->cmd_status); - - writew(make16(p->xmit_cmds[0]), &p->nop_cmds[p->nop_point]->cmd_link); - p->nop_point = next_nop; - dev_kfree_skb(skb); -# endif -#else - writew(TBD_LAST | len, &p->xmit_buffs[p->xmit_count]->size); - next_nop = p->xmit_count + 1 - if (next_nop == NUM_XMIT_BUFFS) - next_nop = 0; - writew(0, &p->xmit_cmds[p->xmit_count]->cmd_status); - /* linkpointer of xmit-command already points to next nop cmd */ - writew(make16(p->nop_cmds[next_nop]), - &p->nop_cmds[next_nop]->cmd_link); - writew(0, &p->nop_cmds[next_nop]->cmd_status); - writew(make16(p->xmit_cmds[p->xmit_count]), - &p->nop_cmds[p->xmit_count]->cmd_link); - p->xmit_count = next_nop; - { - unsigned long flags; - spin_lock_irqsave(&p->spinlock); - if (p->xmit_count != p->xmit_last) - netif_wake_queue(dev); - spin_unlock_irqrestore(&p->spinlock); - } - dev_kfree_skb(skb); -#endif - return NETDEV_TX_OK; -} - -/******************************************* - * Someone wanna have the statistics - */ - -static struct net_device_stats *ni52_get_stats(struct net_device *dev) -{ - struct priv *p = netdev_priv(dev); - unsigned short crc, aln, rsc, ovrn; - - /* Get error-statistics from the ni82586 */ - crc = readw(&p->scb->crc_errs); - writew(0, &p->scb->crc_errs); - aln = readw(&p->scb->aln_errs); - writew(0, &p->scb->aln_errs); - rsc = readw(&p->scb->rsc_errs); - writew(0, &p->scb->rsc_errs); - ovrn = readw(&p->scb->ovrn_errs); - writew(0, &p->scb->ovrn_errs); - - dev->stats.rx_crc_errors += crc; - dev->stats.rx_fifo_errors += ovrn; - dev->stats.rx_frame_errors += aln; - dev->stats.rx_dropped += rsc; - - return &dev->stats; -} - -/******************************************************** - * Set MC list .. - */ - -static void set_multicast_list(struct net_device *dev) -{ - netif_stop_queue(dev); - ni_disint(); - alloc586(dev); - init586(dev); - startrecv586(dev); - ni_enaint(); - netif_wake_queue(dev); -} - -#ifdef MODULE -static struct net_device *dev_ni52; - -module_param(io, int, 0); -module_param(irq, int, 0); -module_param(memstart, long, 0); -module_param(memend, long, 0); -MODULE_PARM_DESC(io, "NI5210 I/O base address,required"); -MODULE_PARM_DESC(irq, "NI5210 IRQ number,required"); -MODULE_PARM_DESC(memstart, "NI5210 memory base address,required"); -MODULE_PARM_DESC(memend, "NI5210 memory end address,required"); - -int __init init_module(void) -{ - if (io <= 0x0 || !memend || !memstart || irq < 2) { - printk(KERN_ERR "ni52: Autoprobing not allowed for modules.\n"); - printk(KERN_ERR "ni52: Set symbols 'io' 'irq' 'memstart' and 'memend'\n"); - return -ENODEV; - } - dev_ni52 = ni52_probe(-1); - if (IS_ERR(dev_ni52)) - return PTR_ERR(dev_ni52); - return 0; -} - -void __exit cleanup_module(void) -{ - struct priv *p = netdev_priv(dev_ni52); - unregister_netdev(dev_ni52); - iounmap(p->mapped); - release_region(dev_ni52->base_addr, NI52_TOTAL_SIZE); - free_netdev(dev_ni52); -} -#endif /* MODULE */ - -MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/i825xx/ni52.h b/drivers/net/ethernet/i825xx/ni52.h deleted file mode 100644 index 0a03b2883327..000000000000 --- a/drivers/net/ethernet/i825xx/ni52.h +++ /dev/null @@ -1,310 +0,0 @@ -/* - * Intel i82586 Ethernet definitions - * - * This is an extension to the Linux operating system, and is covered by the - * same GNU General Public License that covers that work. - * - * copyrights (c) 1994 by Michael Hipp (hippm@informatik.uni-tuebingen.de) - * - * I have done a look in the following sources: - * crynwr-packet-driver by Russ Nelson - * Garret A. Wollman's i82586-driver for BSD - */ - - -#define NI52_RESET 0 /* writing to this address, resets the i82586 */ -#define NI52_ATTENTION 1 /* channel attention, kick the 586 */ -#define NI52_TENA 3 /* 2-5 possibly wrong, Xmit enable */ -#define NI52_TDIS 2 /* Xmit disable */ -#define NI52_INTENA 5 /* Interrupt enable */ -#define NI52_INTDIS 4 /* Interrupt disable */ -#define NI52_MAGIC1 6 /* dunno exact function */ -#define NI52_MAGIC2 7 /* dunno exact function */ - -#define NI52_MAGICVAL1 0x00 /* magic-values for ni5210 card */ -#define NI52_MAGICVAL2 0x55 - -/* - * where to find the System Configuration Pointer (SCP) - */ -#define SCP_DEFAULT_ADDRESS 0xfffff4 - - -/* - * System Configuration Pointer Struct - */ - -struct scp_struct -{ - u16 zero_dum0; /* has to be zero */ - u8 sysbus; /* 0=16Bit,1=8Bit */ - u8 zero_dum1; /* has to be zero for 586 */ - u16 zero_dum2; - u16 zero_dum3; - u32 iscp; /* pointer to the iscp-block */ -}; - - -/* - * Intermediate System Configuration Pointer (ISCP) - */ -struct iscp_struct -{ - u8 busy; /* 586 clears after successful init */ - u8 zero_dummy; /* has to be zero */ - u16 scb_offset; /* pointeroffset to the scb_base */ - u32 scb_base; /* base-address of all 16-bit offsets */ -}; - -/* - * System Control Block (SCB) - */ -struct scb_struct -{ - u8 rus; - u8 cus; - u8 cmd_ruc; /* command word: RU part */ - u8 cmd_cuc; /* command word: CU part & ACK */ - u16 cbl_offset; /* pointeroffset, command block list */ - u16 rfa_offset; /* pointeroffset, receive frame area */ - u16 crc_errs; /* CRC-Error counter */ - u16 aln_errs; /* alignmenterror counter */ - u16 rsc_errs; /* Resourceerror counter */ - u16 ovrn_errs; /* OVerrunerror counter */ -}; - -/* - * possible command values for the command word - */ -#define RUC_MASK 0x0070 /* mask for RU commands */ -#define RUC_NOP 0x0000 /* NOP-command */ -#define RUC_START 0x0010 /* start RU */ -#define RUC_RESUME 0x0020 /* resume RU after suspend */ -#define RUC_SUSPEND 0x0030 /* suspend RU */ -#define RUC_ABORT 0x0040 /* abort receiver operation immediately */ - -#define CUC_MASK 0x07 /* mask for CU command */ -#define CUC_NOP 0x00 /* NOP-command */ -#define CUC_START 0x01 /* start execution of 1. cmd on the CBL */ -#define CUC_RESUME 0x02 /* resume after suspend */ -#define CUC_SUSPEND 0x03 /* Suspend CU */ -#define CUC_ABORT 0x04 /* abort command operation immediately */ - -#define ACK_MASK 0xf0 /* mask for ACK command */ -#define ACK_CX 0x80 /* acknowledges STAT_CX */ -#define ACK_FR 0x40 /* ack. STAT_FR */ -#define ACK_CNA 0x20 /* ack. STAT_CNA */ -#define ACK_RNR 0x10 /* ack. STAT_RNR */ - -/* - * possible status values for the status word - */ -#define STAT_MASK 0xf0 /* mask for cause of interrupt */ -#define STAT_CX 0x80 /* CU finished cmd with its I bit set */ -#define STAT_FR 0x40 /* RU finished receiving a frame */ -#define STAT_CNA 0x20 /* CU left active state */ -#define STAT_RNR 0x10 /* RU left ready state */ - -#define CU_STATUS 0x7 /* CU status, 0=idle */ -#define CU_SUSPEND 0x1 /* CU is suspended */ -#define CU_ACTIVE 0x2 /* CU is active */ - -#define RU_STATUS 0x70 /* RU status, 0=idle */ -#define RU_SUSPEND 0x10 /* RU suspended */ -#define RU_NOSPACE 0x20 /* RU no resources */ -#define RU_READY 0x40 /* RU is ready */ - -/* - * Receive Frame Descriptor (RFD) - */ -struct rfd_struct -{ - u8 stat_low; /* status word */ - u8 stat_high; /* status word */ - u8 rfd_sf; /* 82596 mode only */ - u8 last; /* Bit15,Last Frame on List / Bit14,suspend */ - u16 next; /* linkoffset to next RFD */ - u16 rbd_offset; /* pointeroffset to RBD-buffer */ - u8 dest[6]; /* ethernet-address, destination */ - u8 source[6]; /* ethernet-address, source */ - u16 length; /* 802.3 frame-length */ - u16 zero_dummy; /* dummy */ -}; - -#define RFD_LAST 0x80 /* last: last rfd in the list */ -#define RFD_SUSP 0x40 /* last: suspend RU after */ -#define RFD_COMPL 0x80 -#define RFD_OK 0x20 -#define RFD_BUSY 0x40 -#define RFD_ERR_LEN 0x10 /* Length error (if enabled length-checking */ -#define RFD_ERR_CRC 0x08 /* CRC error */ -#define RFD_ERR_ALGN 0x04 /* Alignment error */ -#define RFD_ERR_RNR 0x02 /* status: receiver out of resources */ -#define RFD_ERR_OVR 0x01 /* DMA Overrun! */ - -#define RFD_ERR_FTS 0x0080 /* Frame to short */ -#define RFD_ERR_NEOP 0x0040 /* No EOP flag (for bitstuffing only) */ -#define RFD_ERR_TRUN 0x0020 /* (82596 only/SF mode) indicates truncated frame */ -#define RFD_MATCHADD 0x0002 /* status: Destinationaddress !matches IA (only 82596) */ -#define RFD_COLLDET 0x0001 /* Detected collision during reception */ - -/* - * Receive Buffer Descriptor (RBD) - */ -struct rbd_struct -{ - u16 status; /* status word,number of used bytes in buff */ - u16 next; /* pointeroffset to next RBD */ - u32 buffer; /* receive buffer address pointer */ - u16 size; /* size of this buffer */ - u16 zero_dummy; /* dummy */ -}; - -#define RBD_LAST 0x8000 /* last buffer */ -#define RBD_USED 0x4000 /* this buffer has data */ -#define RBD_MASK 0x3fff /* size-mask for length */ - -/* - * Statusvalues for Commands/RFD - */ -#define STAT_COMPL 0x8000 /* status: frame/command is complete */ -#define STAT_BUSY 0x4000 /* status: frame/command is busy */ -#define STAT_OK 0x2000 /* status: frame/command is ok */ - -/* - * Action-Commands - */ -#define CMD_NOP 0x0000 /* NOP */ -#define CMD_IASETUP 0x0001 /* initial address setup command */ -#define CMD_CONFIGURE 0x0002 /* configure command */ -#define CMD_MCSETUP 0x0003 /* MC setup command */ -#define CMD_XMIT 0x0004 /* transmit command */ -#define CMD_TDR 0x0005 /* time domain reflectometer (TDR) command */ -#define CMD_DUMP 0x0006 /* dump command */ -#define CMD_DIAGNOSE 0x0007 /* diagnose command */ - -/* - * Action command bits - */ -#define CMD_LAST 0x8000 /* indicates last command in the CBL */ -#define CMD_SUSPEND 0x4000 /* suspend CU after this CB */ -#define CMD_INT 0x2000 /* generate interrupt after execution */ - -/* - * NOP - command - */ -struct nop_cmd_struct -{ - u16 cmd_status; /* status of this command */ - u16 cmd_cmd; /* the command itself (+bits) */ - u16 cmd_link; /* offsetpointer to next command */ -}; - -/* - * IA Setup command - */ -struct iasetup_cmd_struct -{ - u16 cmd_status; - u16 cmd_cmd; - u16 cmd_link; - u8 iaddr[6]; -}; - -/* - * Configure command - */ -struct configure_cmd_struct -{ - u16 cmd_status; - u16 cmd_cmd; - u16 cmd_link; - u8 byte_cnt; /* size of the config-cmd */ - u8 fifo; /* fifo/recv monitor */ - u8 sav_bf; /* save bad frames (bit7=1)*/ - u8 adr_len; /* adr_len(0-2),al_loc(3),pream(4-5),loopbak(6-7)*/ - u8 priority; /* lin_prio(0-2),exp_prio(4-6),bof_metd(7) */ - u8 ifs; /* inter frame spacing */ - u8 time_low; /* slot time low */ - u8 time_high; /* slot time high(0-2) and max. retries(4-7) */ - u8 promisc; /* promisc-mode(0) , et al (1-7) */ - u8 carr_coll; /* carrier(0-3)/collision(4-7) stuff */ - u8 fram_len; /* minimal frame len */ - u8 dummy; /* dummy */ -}; - -/* - * Multicast Setup command - */ -struct mcsetup_cmd_struct -{ - u16 cmd_status; - u16 cmd_cmd; - u16 cmd_link; - u16 mc_cnt; /* number of bytes in the MC-List */ - u8 mc_list[0][6]; /* pointer to 6 bytes entries */ -}; - -/* - * DUMP command - */ -struct dump_cmd_struct -{ - u16 cmd_status; - u16 cmd_cmd; - u16 cmd_link; - u16 dump_offset; /* pointeroffset to DUMP space */ -}; - -/* - * transmit command - */ -struct transmit_cmd_struct -{ - u16 cmd_status; - u16 cmd_cmd; - u16 cmd_link; - u16 tbd_offset; /* pointeroffset to TBD */ - u8 dest[6]; /* destination address of the frame */ - u16 length; /* user defined: 802.3 length / Ether type */ -}; - -#define TCMD_ERRMASK 0x0fa0 -#define TCMD_MAXCOLLMASK 0x000f -#define TCMD_MAXCOLL 0x0020 -#define TCMD_HEARTBEAT 0x0040 -#define TCMD_DEFERRED 0x0080 -#define TCMD_UNDERRUN 0x0100 -#define TCMD_LOSTCTS 0x0200 -#define TCMD_NOCARRIER 0x0400 -#define TCMD_LATECOLL 0x0800 - -struct tdr_cmd_struct -{ - u16 cmd_status; - u16 cmd_cmd; - u16 cmd_link; - u16 status; -}; - -#define TDR_LNK_OK 0x8000 /* No link problem identified */ -#define TDR_XCVR_PRB 0x4000 /* indicates a transceiver problem */ -#define TDR_ET_OPN 0x2000 /* open, no correct termination */ -#define TDR_ET_SRT 0x1000 /* TDR detected a short circuit */ -#define TDR_TIMEMASK 0x07ff /* mask for the time field */ - -/* - * Transmit Buffer Descriptor (TBD) - */ -struct tbd_struct -{ - u16 size; /* size + EOF-Flag(15) */ - u16 next; /* pointeroffset to next TBD */ - u32 buffer; /* pointer to buffer */ -}; - -#define TBD_LAST 0x8000 /* EOF-Flag, indicates last buffer in list */ - - - - diff --git a/drivers/net/ethernet/i825xx/znet.c b/drivers/net/ethernet/i825xx/znet.c deleted file mode 100644 index c9479e081b8a..000000000000 --- a/drivers/net/ethernet/i825xx/znet.c +++ /dev/null @@ -1,928 +0,0 @@ -/* znet.c: An Zenith Z-Note ethernet driver for linux. */ - -/* - Written by Donald Becker. - - The author may be reached as becker@scyld.com. - This driver is based on the Linux skeleton driver. The copyright of the - skeleton driver is held by the United States Government, as represented - by DIRNSA, and it is released under the GPL. - - Thanks to Mike Hollick for alpha testing and suggestions. - - References: - The Crynwr packet driver. - - "82593 CSMA/CD Core LAN Controller" Intel datasheet, 1992 - Intel Microcommunications Databook, Vol. 1, 1990. - As usual with Intel, the documentation is incomplete and inaccurate. - I had to read the Crynwr packet driver to figure out how to actually - use the i82593, and guess at what register bits matched the loosely - related i82586. - - Theory of Operation - - The i82593 used in the Zenith Z-Note series operates using two(!) slave - DMA channels, one interrupt, and one 8-bit I/O port. - - While there several ways to configure '593 DMA system, I chose the one - that seemed commensurate with the highest system performance in the face - of moderate interrupt latency: Both DMA channels are configured as - recirculating ring buffers, with one channel (#0) dedicated to Rx and - the other channel (#1) to Tx and configuration. (Note that this is - different than the Crynwr driver, where the Tx DMA channel is initialized - before each operation. That approach simplifies operation and Tx error - recovery, but requires additional I/O in normal operation and precludes - transmit buffer chaining.) - - Both rings are set to 8192 bytes using {TX,RX}_RING_SIZE. This provides - a reasonable ring size for Rx, while simplifying DMA buffer allocation -- - DMA buffers must not cross a 128K boundary. (In truth the size selection - was influenced by my lack of '593 documentation. I thus was constrained - to use the Crynwr '593 initialization table, which sets the Rx ring size - to 8K.) - - Despite my usual low opinion about Intel-designed parts, I must admit - that the bulk data handling of the i82593 is a good design for - an integrated system, like a laptop, where using two slave DMA channels - doesn't pose a problem. I still take issue with using only a single I/O - port. In the same controlled environment there are essentially no - limitations on I/O space, and using multiple locations would eliminate - the need for multiple operations when looking at status registers, - setting the Rx ring boundary, or switching to promiscuous mode. - - I also question Zenith's selection of the '593: one of the advertised - advantages of earlier Intel parts was that if you figured out the magic - initialization incantation you could use the same part on many different - network types. Zenith's use of the "FriendlyNet" (sic) connector rather - than an on-board transceiver leads me to believe that they were planning - to take advantage of this. But, uhmmm, the '593 omits all but ethernet - functionality from the serial subsystem. - */ - -/* 10/2002 - - o Resurected for Linux 2.5+ by Marc Zyngier <maz@wild-wind.fr.eu.org> : - - - Removed strange DMA snooping in znet_sent_packet, which lead to - TX buffer corruption on my laptop. - - Use init_etherdev stuff. - - Use kmalloc-ed DMA buffers. - - Use as few global variables as possible. - - Use proper resources management. - - Use wireless/i82593.h as much as possible (structure, constants) - - Compiles as module or build-in. - - Now survives unplugging/replugging cable. - - Some code was taken from wavelan_cs. - - Tested on a vintage Zenith Z-Note 433Lnp+. Probably broken on - anything else. Testers (and detailed bug reports) are welcome :-). - - o TODO : - - - Properly handle multicast - - Understand why some traffic patterns add a 1s latency... - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/dma.h> - -#include <linux/i82593.h> - -static char version[] __initdata = "znet.c:v1.02 9/23/94 becker@scyld.com\n"; - -#ifndef ZNET_DEBUG -#define ZNET_DEBUG 1 -#endif -static unsigned int znet_debug = ZNET_DEBUG; -module_param (znet_debug, int, 0); -MODULE_PARM_DESC (znet_debug, "ZNet debug level"); -MODULE_LICENSE("GPL"); - -/* The DMA modes we need aren't in <dma.h>. */ -#define DMA_RX_MODE 0x14 /* Auto init, I/O to mem, ++, demand. */ -#define DMA_TX_MODE 0x18 /* Auto init, Mem to I/O, ++, demand. */ -#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17) -#define RX_BUF_SIZE 8192 -#define TX_BUF_SIZE 8192 -#define DMA_BUF_SIZE (RX_BUF_SIZE + 16) /* 8k + 16 bytes for trailers */ - -#define TX_TIMEOUT (HZ/10) - -struct znet_private { - int rx_dma, tx_dma; - spinlock_t lock; - short sia_base, sia_size, io_size; - struct i82593_conf_block i593_init; - /* The starting, current, and end pointers for the packet buffers. */ - ushort *rx_start, *rx_cur, *rx_end; - ushort *tx_start, *tx_cur, *tx_end; - ushort tx_buf_len; /* Tx buffer length, in words. */ -}; - -/* Only one can be built-in;-> */ -static struct net_device *znet_dev; - -#define NETIDBLK_MAGIC "NETIDBLK" -#define NETIDBLK_MAGIC_SIZE 8 - -struct netidblk { - char magic[NETIDBLK_MAGIC_SIZE]; /* The magic number (string) "NETIDBLK" */ - unsigned char netid[8]; /* The physical station address */ - char nettype, globalopt; - char vendor[8]; /* The machine vendor and product name. */ - char product[8]; - char irq1, irq2; /* Interrupts, only one is currently used. */ - char dma1, dma2; - short dma_mem_misc[8]; /* DMA buffer locations (unused in Linux). */ - short iobase1, iosize1; - short iobase2, iosize2; /* Second iobase unused. */ - char driver_options; /* Misc. bits */ - char pad; -}; - -static int znet_open(struct net_device *dev); -static netdev_tx_t znet_send_packet(struct sk_buff *skb, - struct net_device *dev); -static irqreturn_t znet_interrupt(int irq, void *dev_id); -static void znet_rx(struct net_device *dev); -static int znet_close(struct net_device *dev); -static void hardware_init(struct net_device *dev); -static void update_stop_hit(short ioaddr, unsigned short rx_stop_offset); -static void znet_tx_timeout (struct net_device *dev); - -/* Request needed resources */ -static int znet_request_resources (struct net_device *dev) -{ - struct znet_private *znet = netdev_priv(dev); - - if (request_irq (dev->irq, znet_interrupt, 0, "ZNet", dev)) - goto failed; - if (request_dma (znet->rx_dma, "ZNet rx")) - goto free_irq; - if (request_dma (znet->tx_dma, "ZNet tx")) - goto free_rx_dma; - if (!request_region (znet->sia_base, znet->sia_size, "ZNet SIA")) - goto free_tx_dma; - if (!request_region (dev->base_addr, znet->io_size, "ZNet I/O")) - goto free_sia; - - return 0; /* Happy ! */ - - free_sia: - release_region (znet->sia_base, znet->sia_size); - free_tx_dma: - free_dma (znet->tx_dma); - free_rx_dma: - free_dma (znet->rx_dma); - free_irq: - free_irq (dev->irq, dev); - failed: - return -1; -} - -static void znet_release_resources (struct net_device *dev) -{ - struct znet_private *znet = netdev_priv(dev); - - release_region (znet->sia_base, znet->sia_size); - release_region (dev->base_addr, znet->io_size); - free_dma (znet->tx_dma); - free_dma (znet->rx_dma); - free_irq (dev->irq, dev); -} - -/* Keep the magical SIA stuff in a single function... */ -static void znet_transceiver_power (struct net_device *dev, int on) -{ - struct znet_private *znet = netdev_priv(dev); - unsigned char v; - - /* Turn on/off the 82501 SIA, using zenith-specific magic. */ - /* Select LAN control register */ - outb(0x10, znet->sia_base); - - if (on) - v = inb(znet->sia_base + 1) | 0x84; - else - v = inb(znet->sia_base + 1) & ~0x84; - - outb(v, znet->sia_base+1); /* Turn on/off LAN power (bit 2). */ -} - -/* Init the i82593, with current promisc/mcast configuration. - Also used from hardware_init. */ -static void znet_set_multicast_list (struct net_device *dev) -{ - struct znet_private *znet = netdev_priv(dev); - short ioaddr = dev->base_addr; - struct i82593_conf_block *cfblk = &znet->i593_init; - - memset(cfblk, 0x00, sizeof(struct i82593_conf_block)); - - /* The configuration block. What an undocumented nightmare. - The first set of values are those suggested (without explanation) - for ethernet in the Intel 82586 databook. The rest appear to be - completely undocumented, except for cryptic notes in the Crynwr - packet driver. This driver uses the Crynwr values verbatim. */ - - /* maz : Rewritten to take advantage of the wanvelan includes. - At least we have names, not just blind values */ - - /* Byte 0 */ - cfblk->fifo_limit = 10; /* = 16 B rx and 80 B tx fifo thresholds */ - cfblk->forgnesi = 0; /* 0=82C501, 1=AMD7992B compatibility */ - cfblk->fifo_32 = 1; - cfblk->d6mod = 0; /* Run in i82593 advanced mode */ - cfblk->throttle_enb = 1; - - /* Byte 1 */ - cfblk->throttle = 8; /* Continuous w/interrupts, 128-clock DMA. */ - cfblk->cntrxint = 0; /* enable continuous mode receive interrupts */ - cfblk->contin = 1; /* enable continuous mode */ - - /* Byte 2 */ - cfblk->addr_len = ETH_ALEN; - cfblk->acloc = 1; /* Disable source addr insertion by i82593 */ - cfblk->preamb_len = 2; /* 8 bytes preamble */ - cfblk->loopback = 0; /* Loopback off */ - - /* Byte 3 */ - cfblk->lin_prio = 0; /* Default priorities & backoff methods. */ - cfblk->tbofstop = 0; - cfblk->exp_prio = 0; - cfblk->bof_met = 0; - - /* Byte 4 */ - cfblk->ifrm_spc = 6; /* 96 bit times interframe spacing */ - - /* Byte 5 */ - cfblk->slottim_low = 0; /* 512 bit times slot time (low) */ - - /* Byte 6 */ - cfblk->slottim_hi = 2; /* 512 bit times slot time (high) */ - cfblk->max_retr = 15; /* 15 collisions retries */ - - /* Byte 7 */ - cfblk->prmisc = ((dev->flags & IFF_PROMISC) ? 1 : 0); /* Promiscuous mode */ - cfblk->bc_dis = 0; /* Enable broadcast reception */ - cfblk->crs_1 = 0; /* Don't transmit without carrier sense */ - cfblk->nocrc_ins = 0; /* i82593 generates CRC */ - cfblk->crc_1632 = 0; /* 32-bit Autodin-II CRC */ - cfblk->crs_cdt = 0; /* CD not to be interpreted as CS */ - - /* Byte 8 */ - cfblk->cs_filter = 0; /* CS is recognized immediately */ - cfblk->crs_src = 0; /* External carrier sense */ - cfblk->cd_filter = 0; /* CD is recognized immediately */ - - /* Byte 9 */ - cfblk->min_fr_len = ETH_ZLEN >> 2; /* Minimum frame length */ - - /* Byte A */ - cfblk->lng_typ = 1; /* Type/length checks OFF */ - cfblk->lng_fld = 1; /* Disable 802.3 length field check */ - cfblk->rxcrc_xf = 1; /* Don't transfer CRC to memory */ - cfblk->artx = 1; /* Disable automatic retransmission */ - cfblk->sarec = 1; /* Disable source addr trig of CD */ - cfblk->tx_jabber = 0; /* Disable jabber jam sequence */ - cfblk->hash_1 = 1; /* Use bits 0-5 in mc address hash */ - cfblk->lbpkpol = 0; /* Loopback pin active high */ - - /* Byte B */ - cfblk->fdx = 0; /* Disable full duplex operation */ - - /* Byte C */ - cfblk->dummy_6 = 0x3f; /* all ones, Default multicast addresses & backoff. */ - cfblk->mult_ia = 0; /* No multiple individual addresses */ - cfblk->dis_bof = 0; /* Disable the backoff algorithm ?! */ - - /* Byte D */ - cfblk->dummy_1 = 1; /* set to 1 */ - cfblk->tx_ifs_retrig = 3; /* Hmm... Disabled */ - cfblk->mc_all = (!netdev_mc_empty(dev) || - (dev->flags & IFF_ALLMULTI)); /* multicast all mode */ - cfblk->rcv_mon = 0; /* Monitor mode disabled */ - cfblk->frag_acpt = 0; /* Do not accept fragments */ - cfblk->tstrttrs = 0; /* No start transmission threshold */ - - /* Byte E */ - cfblk->fretx = 1; /* FIFO automatic retransmission */ - cfblk->runt_eop = 0; /* drop "runt" packets */ - cfblk->hw_sw_pin = 0; /* ?? */ - cfblk->big_endn = 0; /* Big Endian ? no... */ - cfblk->syncrqs = 1; /* Synchronous DRQ deassertion... */ - cfblk->sttlen = 1; /* 6 byte status registers */ - cfblk->rx_eop = 0; /* Signal EOP on packet reception */ - cfblk->tx_eop = 0; /* Signal EOP on packet transmission */ - - /* Byte F */ - cfblk->rbuf_size = RX_BUF_SIZE >> 12; /* Set receive buffer size */ - cfblk->rcvstop = 1; /* Enable Receive Stop Register */ - - if (znet_debug > 2) { - int i; - unsigned char *c; - - for (i = 0, c = (char *) cfblk; i < sizeof (*cfblk); i++) - printk ("%02X ", c[i]); - printk ("\n"); - } - - *znet->tx_cur++ = sizeof(struct i82593_conf_block); - memcpy(znet->tx_cur, cfblk, sizeof(struct i82593_conf_block)); - znet->tx_cur += sizeof(struct i82593_conf_block)/2; - outb(OP0_CONFIGURE | CR0_CHNL, ioaddr); - - /* XXX FIXME maz : Add multicast addresses here, so having a - * multicast address configured isn't equal to IFF_ALLMULTI */ -} - -static const struct net_device_ops znet_netdev_ops = { - .ndo_open = znet_open, - .ndo_stop = znet_close, - .ndo_start_xmit = znet_send_packet, - .ndo_set_rx_mode = znet_set_multicast_list, - .ndo_tx_timeout = znet_tx_timeout, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -/* The Z-Note probe is pretty easy. The NETIDBLK exists in the safe-to-probe - BIOS area. We just scan for the signature, and pull the vital parameters - out of the structure. */ - -static int __init znet_probe (void) -{ - int i; - struct netidblk *netinfo; - struct znet_private *znet; - struct net_device *dev; - char *p; - char *plast = phys_to_virt(0x100000 - NETIDBLK_MAGIC_SIZE); - int err = -ENOMEM; - - /* This code scans the region 0xf0000 to 0xfffff for a "NETIDBLK". */ - for(p = (char *)phys_to_virt(0xf0000); p <= plast; p++) - if (*p == 'N' && - strncmp(p, NETIDBLK_MAGIC, NETIDBLK_MAGIC_SIZE) == 0) - break; - - if (p > plast) { - if (znet_debug > 1) - printk(KERN_INFO "No Z-Note ethernet adaptor found.\n"); - return -ENODEV; - } - - dev = alloc_etherdev(sizeof(struct znet_private)); - if (!dev) - return -ENOMEM; - - znet = netdev_priv(dev); - - netinfo = (struct netidblk *)p; - dev->base_addr = netinfo->iobase1; - dev->irq = netinfo->irq1; - - /* The station address is in the "netidblk" at 0x0f0000. */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = netinfo->netid[i]; - - printk(KERN_INFO "%s: ZNET at %#3lx, %pM" - ", using IRQ %d DMA %d and %d.\n", - dev->name, dev->base_addr, dev->dev_addr, - dev->irq, netinfo->dma1, netinfo->dma2); - - if (znet_debug > 1) { - printk(KERN_INFO "%s: vendor '%16.16s' IRQ1 %d IRQ2 %d DMA1 %d DMA2 %d.\n", - dev->name, netinfo->vendor, - netinfo->irq1, netinfo->irq2, - netinfo->dma1, netinfo->dma2); - printk(KERN_INFO "%s: iobase1 %#x size %d iobase2 %#x size %d net type %2.2x.\n", - dev->name, netinfo->iobase1, netinfo->iosize1, - netinfo->iobase2, netinfo->iosize2, netinfo->nettype); - } - - if (znet_debug > 0) - printk(KERN_INFO "%s", version); - - znet->rx_dma = netinfo->dma1; - znet->tx_dma = netinfo->dma2; - spin_lock_init(&znet->lock); - znet->sia_base = 0xe6; /* Magic address for the 82501 SIA */ - znet->sia_size = 2; - /* maz: Despite the '593 being advertised above as using a - * single 8bits I/O port, this driver does many 16bits - * access. So set io_size accordingly */ - znet->io_size = 2; - - if (!(znet->rx_start = kmalloc (DMA_BUF_SIZE, GFP_KERNEL | GFP_DMA))) - goto free_dev; - if (!(znet->tx_start = kmalloc (DMA_BUF_SIZE, GFP_KERNEL | GFP_DMA))) - goto free_rx; - - if (!dma_page_eq (znet->rx_start, znet->rx_start + (RX_BUF_SIZE/2-1)) || - !dma_page_eq (znet->tx_start, znet->tx_start + (TX_BUF_SIZE/2-1))) { - printk (KERN_WARNING "tx/rx crossing DMA frontiers, giving up\n"); - goto free_tx; - } - - znet->rx_end = znet->rx_start + RX_BUF_SIZE/2; - znet->tx_buf_len = TX_BUF_SIZE/2; - znet->tx_end = znet->tx_start + znet->tx_buf_len; - - /* The ZNET-specific entries in the device structure. */ - dev->netdev_ops = &znet_netdev_ops; - dev->watchdog_timeo = TX_TIMEOUT; - err = register_netdev(dev); - if (err) - goto free_tx; - znet_dev = dev; - return 0; - - free_tx: - kfree(znet->tx_start); - free_rx: - kfree(znet->rx_start); - free_dev: - free_netdev(dev); - return err; -} - - -static int znet_open(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - - if (znet_debug > 2) - printk(KERN_DEBUG "%s: znet_open() called.\n", dev->name); - - /* These should never fail. You can't add devices to a sealed box! */ - if (znet_request_resources (dev)) { - printk(KERN_WARNING "%s: Not opened -- resource busy?!?\n", dev->name); - return -EBUSY; - } - - znet_transceiver_power (dev, 1); - - /* According to the Crynwr driver we should wait 50 msec. for the - LAN clock to stabilize. My experiments indicates that the '593 can - be initialized immediately. The delay is probably needed for the - DC-to-DC converter to come up to full voltage, and for the oscillator - to be spot-on at 20Mhz before transmitting. - Until this proves to be a problem we rely on the higher layers for the - delay and save allocating a timer entry. */ - - /* maz : Well, I'm getting every time the following message - * without the delay on a 486@33. This machine is much too - * fast... :-) So maybe the Crynwr driver wasn't wrong after - * all, even if the message is completly harmless on my - * setup. */ - mdelay (50); - - /* This follows the packet driver's lead, and checks for success. */ - if (inb(ioaddr) != 0x10 && inb(ioaddr) != 0x00) - printk(KERN_WARNING "%s: Problem turning on the transceiver power.\n", - dev->name); - - hardware_init(dev); - netif_start_queue (dev); - - return 0; -} - - -static void znet_tx_timeout (struct net_device *dev) -{ - int ioaddr = dev->base_addr; - ushort event, tx_status, rx_offset, state; - - outb (CR0_STATUS_0, ioaddr); - event = inb (ioaddr); - outb (CR0_STATUS_1, ioaddr); - tx_status = inw (ioaddr); - outb (CR0_STATUS_2, ioaddr); - rx_offset = inw (ioaddr); - outb (CR0_STATUS_3, ioaddr); - state = inb (ioaddr); - printk (KERN_WARNING "%s: transmit timed out, status %02x %04x %04x %02x," - " resetting.\n", dev->name, event, tx_status, rx_offset, state); - if (tx_status == TX_LOST_CRS) - printk (KERN_WARNING "%s: Tx carrier error, check transceiver cable.\n", - dev->name); - outb (OP0_RESET, ioaddr); - hardware_init (dev); - netif_wake_queue (dev); -} - -static netdev_tx_t znet_send_packet(struct sk_buff *skb, struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct znet_private *znet = netdev_priv(dev); - unsigned long flags; - short length = skb->len; - - if (znet_debug > 4) - printk(KERN_DEBUG "%s: ZNet_send_packet.\n", dev->name); - - if (length < ETH_ZLEN) { - if (skb_padto(skb, ETH_ZLEN)) - return NETDEV_TX_OK; - length = ETH_ZLEN; - } - - netif_stop_queue (dev); - - /* Check that the part hasn't reset itself, probably from suspend. */ - outb(CR0_STATUS_0, ioaddr); - if (inw(ioaddr) == 0x0010 && - inw(ioaddr) == 0x0000 && - inw(ioaddr) == 0x0010) { - if (znet_debug > 1) - printk (KERN_WARNING "%s : waking up\n", dev->name); - hardware_init(dev); - znet_transceiver_power (dev, 1); - } - - if (1) { - unsigned char *buf = (void *)skb->data; - ushort *tx_link = znet->tx_cur - 1; - ushort rnd_len = (length + 1)>>1; - - dev->stats.tx_bytes+=length; - - if (znet->tx_cur >= znet->tx_end) - znet->tx_cur = znet->tx_start; - *znet->tx_cur++ = length; - if (znet->tx_cur + rnd_len + 1 > znet->tx_end) { - int semi_cnt = (znet->tx_end - znet->tx_cur)<<1; /* Cvrt to byte cnt. */ - memcpy(znet->tx_cur, buf, semi_cnt); - rnd_len -= semi_cnt>>1; - memcpy(znet->tx_start, buf + semi_cnt, length - semi_cnt); - znet->tx_cur = znet->tx_start + rnd_len; - } else { - memcpy(znet->tx_cur, buf, skb->len); - znet->tx_cur += rnd_len; - } - *znet->tx_cur++ = 0; - - spin_lock_irqsave(&znet->lock, flags); - { - *tx_link = OP0_TRANSMIT | CR0_CHNL; - /* Is this always safe to do? */ - outb(OP0_TRANSMIT | CR0_CHNL, ioaddr); - } - spin_unlock_irqrestore (&znet->lock, flags); - - netif_start_queue (dev); - - if (znet_debug > 4) - printk(KERN_DEBUG "%s: Transmitter queued, length %d.\n", dev->name, length); - } - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - -/* The ZNET interrupt handler. */ -static irqreturn_t znet_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct znet_private *znet = netdev_priv(dev); - int ioaddr; - int boguscnt = 20; - int handled = 0; - - spin_lock (&znet->lock); - - ioaddr = dev->base_addr; - - outb(CR0_STATUS_0, ioaddr); - do { - ushort status = inb(ioaddr); - if (znet_debug > 5) { - ushort result, rx_ptr, running; - outb(CR0_STATUS_1, ioaddr); - result = inw(ioaddr); - outb(CR0_STATUS_2, ioaddr); - rx_ptr = inw(ioaddr); - outb(CR0_STATUS_3, ioaddr); - running = inb(ioaddr); - printk(KERN_DEBUG "%s: interrupt, status %02x, %04x %04x %02x serial %d.\n", - dev->name, status, result, rx_ptr, running, boguscnt); - } - if ((status & SR0_INTERRUPT) == 0) - break; - - handled = 1; - - if ((status & SR0_EVENT_MASK) == SR0_TRANSMIT_DONE || - (status & SR0_EVENT_MASK) == SR0_RETRANSMIT_DONE || - (status & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE) { - int tx_status; - outb(CR0_STATUS_1, ioaddr); - tx_status = inw(ioaddr); - /* It's undocumented, but tx_status seems to match the i82586. */ - if (tx_status & TX_OK) { - dev->stats.tx_packets++; - dev->stats.collisions += tx_status & TX_NCOL_MASK; - } else { - if (tx_status & (TX_LOST_CTS | TX_LOST_CRS)) - dev->stats.tx_carrier_errors++; - if (tx_status & TX_UND_RUN) - dev->stats.tx_fifo_errors++; - if (!(tx_status & TX_HRT_BEAT)) - dev->stats.tx_heartbeat_errors++; - if (tx_status & TX_MAX_COL) - dev->stats.tx_aborted_errors++; - /* ...and the catch-all. */ - if ((tx_status | (TX_LOST_CRS | TX_LOST_CTS | TX_UND_RUN | TX_HRT_BEAT | TX_MAX_COL)) != (TX_LOST_CRS | TX_LOST_CTS | TX_UND_RUN | TX_HRT_BEAT | TX_MAX_COL)) - dev->stats.tx_errors++; - - /* Transceiver may be stuck if cable - * was removed while emitting a - * packet. Flip it off, then on to - * reset it. This is very empirical, - * but it seems to work. */ - - znet_transceiver_power (dev, 0); - znet_transceiver_power (dev, 1); - } - netif_wake_queue (dev); - } - - if ((status & SR0_RECEPTION) || - (status & SR0_EVENT_MASK) == SR0_STOP_REG_HIT) { - znet_rx(dev); - } - /* Clear the interrupts we've handled. */ - outb(CR0_INT_ACK, ioaddr); - } while (boguscnt--); - - spin_unlock (&znet->lock); - - return IRQ_RETVAL(handled); -} - -static void znet_rx(struct net_device *dev) -{ - struct znet_private *znet = netdev_priv(dev); - int ioaddr = dev->base_addr; - int boguscount = 1; - short next_frame_end_offset = 0; /* Offset of next frame start. */ - short *cur_frame_end; - short cur_frame_end_offset; - - outb(CR0_STATUS_2, ioaddr); - cur_frame_end_offset = inw(ioaddr); - - if (cur_frame_end_offset == znet->rx_cur - znet->rx_start) { - printk(KERN_WARNING "%s: Interrupted, but nothing to receive, offset %03x.\n", - dev->name, cur_frame_end_offset); - return; - } - - /* Use same method as the Crynwr driver: construct a forward list in - the same area of the backwards links we now have. This allows us to - pass packets to the upper layers in the order they were received -- - important for fast-path sequential operations. */ - while (znet->rx_start + cur_frame_end_offset != znet->rx_cur && - ++boguscount < 5) { - unsigned short hi_cnt, lo_cnt, hi_status, lo_status; - int count, status; - - if (cur_frame_end_offset < 4) { - /* Oh no, we have a special case: the frame trailer wraps around - the end of the ring buffer. We've saved space at the end of - the ring buffer for just this problem. */ - memcpy(znet->rx_end, znet->rx_start, 8); - cur_frame_end_offset += (RX_BUF_SIZE/2); - } - cur_frame_end = znet->rx_start + cur_frame_end_offset - 4; - - lo_status = *cur_frame_end++; - hi_status = *cur_frame_end++; - status = ((hi_status & 0xff) << 8) + (lo_status & 0xff); - lo_cnt = *cur_frame_end++; - hi_cnt = *cur_frame_end++; - count = ((hi_cnt & 0xff) << 8) + (lo_cnt & 0xff); - - if (znet_debug > 5) - printk(KERN_DEBUG "Constructing trailer at location %03x, %04x %04x %04x %04x" - " count %#x status %04x.\n", - cur_frame_end_offset<<1, lo_status, hi_status, lo_cnt, hi_cnt, - count, status); - cur_frame_end[-4] = status; - cur_frame_end[-3] = next_frame_end_offset; - cur_frame_end[-2] = count; - next_frame_end_offset = cur_frame_end_offset; - cur_frame_end_offset -= ((count + 1)>>1) + 3; - if (cur_frame_end_offset < 0) - cur_frame_end_offset += RX_BUF_SIZE/2; - } - - /* Now step forward through the list. */ - do { - ushort *this_rfp_ptr = znet->rx_start + next_frame_end_offset; - int status = this_rfp_ptr[-4]; - int pkt_len = this_rfp_ptr[-2]; - - if (znet_debug > 5) - printk(KERN_DEBUG "Looking at trailer ending at %04x status %04x length %03x" - " next %04x.\n", next_frame_end_offset<<1, status, pkt_len, - this_rfp_ptr[-3]<<1); - /* Once again we must assume that the i82586 docs apply. */ - if ( ! (status & RX_RCV_OK)) { /* There was an error. */ - dev->stats.rx_errors++; - if (status & RX_CRC_ERR) dev->stats.rx_crc_errors++; - if (status & RX_ALG_ERR) dev->stats.rx_frame_errors++; -#if 0 - if (status & 0x0200) dev->stats.rx_over_errors++; /* Wrong. */ - if (status & 0x0100) dev->stats.rx_fifo_errors++; -#else - /* maz : Wild guess... */ - if (status & RX_OVRRUN) dev->stats.rx_over_errors++; -#endif - if (status & RX_SRT_FRM) dev->stats.rx_length_errors++; - } else if (pkt_len > 1536) { - dev->stats.rx_length_errors++; - } else { - /* Malloc up new buffer. */ - struct sk_buff *skb; - - skb = netdev_alloc_skb(dev, pkt_len); - if (skb == NULL) { - if (znet_debug) - printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); - dev->stats.rx_dropped++; - break; - } - - if (&znet->rx_cur[(pkt_len+1)>>1] > znet->rx_end) { - int semi_cnt = (znet->rx_end - znet->rx_cur)<<1; - memcpy(skb_put(skb,semi_cnt), znet->rx_cur, semi_cnt); - memcpy(skb_put(skb,pkt_len-semi_cnt), znet->rx_start, - pkt_len - semi_cnt); - } else { - memcpy(skb_put(skb,pkt_len), znet->rx_cur, pkt_len); - if (znet_debug > 6) { - unsigned int *packet = (unsigned int *) skb->data; - printk(KERN_DEBUG "Packet data is %08x %08x %08x %08x.\n", packet[0], - packet[1], packet[2], packet[3]); - } - } - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; - } - znet->rx_cur = this_rfp_ptr; - if (znet->rx_cur >= znet->rx_end) - znet->rx_cur -= RX_BUF_SIZE/2; - update_stop_hit(ioaddr, (znet->rx_cur - znet->rx_start)<<1); - next_frame_end_offset = this_rfp_ptr[-3]; - if (next_frame_end_offset == 0) /* Read all the frames? */ - break; /* Done for now */ - this_rfp_ptr = znet->rx_start + next_frame_end_offset; - } while (--boguscount); - - /* If any worth-while packets have been received, dev_rint() - has done a mark_bh(INET_BH) for us and will work on them - when we get to the bottom-half routine. */ -} - -/* The inverse routine to znet_open(). */ -static int znet_close(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - - netif_stop_queue (dev); - - outb(OP0_RESET, ioaddr); /* CMD0_RESET */ - - if (znet_debug > 1) - printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name); - /* Turn off transceiver power. */ - znet_transceiver_power (dev, 0); - - znet_release_resources (dev); - - return 0; -} - -static void show_dma(struct net_device *dev) -{ - short ioaddr = dev->base_addr; - unsigned char stat = inb (ioaddr); - struct znet_private *znet = netdev_priv(dev); - unsigned long flags; - short dma_port = ((znet->tx_dma&3)<<2) + IO_DMA2_BASE; - unsigned addr = inb(dma_port); - short residue; - - addr |= inb(dma_port) << 8; - residue = get_dma_residue(znet->tx_dma); - - if (znet_debug > 1) { - flags=claim_dma_lock(); - printk(KERN_DEBUG "Stat:%02x Addr: %04x cnt:%3x\n", - stat, addr<<1, residue); - release_dma_lock(flags); - } -} - -/* Initialize the hardware. We have to do this when the board is open()ed - or when we come out of suspend mode. */ -static void hardware_init(struct net_device *dev) -{ - unsigned long flags; - short ioaddr = dev->base_addr; - struct znet_private *znet = netdev_priv(dev); - - znet->rx_cur = znet->rx_start; - znet->tx_cur = znet->tx_start; - - /* Reset the chip, and start it up. */ - outb(OP0_RESET, ioaddr); - - flags=claim_dma_lock(); - disable_dma(znet->rx_dma); /* reset by an interrupting task. */ - clear_dma_ff(znet->rx_dma); - set_dma_mode(znet->rx_dma, DMA_RX_MODE); - set_dma_addr(znet->rx_dma, isa_virt_to_bus(znet->rx_start)); - set_dma_count(znet->rx_dma, RX_BUF_SIZE); - enable_dma(znet->rx_dma); - /* Now set up the Tx channel. */ - disable_dma(znet->tx_dma); - clear_dma_ff(znet->tx_dma); - set_dma_mode(znet->tx_dma, DMA_TX_MODE); - set_dma_addr(znet->tx_dma, isa_virt_to_bus(znet->tx_start)); - set_dma_count(znet->tx_dma, znet->tx_buf_len<<1); - enable_dma(znet->tx_dma); - release_dma_lock(flags); - - if (znet_debug > 1) - printk(KERN_DEBUG "%s: Initializing the i82593, rx buf %p tx buf %p\n", - dev->name, znet->rx_start,znet->tx_start); - /* Do an empty configure command, just like the Crynwr driver. This - resets to chip to its default values. */ - *znet->tx_cur++ = 0; - *znet->tx_cur++ = 0; - show_dma(dev); - outb(OP0_CONFIGURE | CR0_CHNL, ioaddr); - - znet_set_multicast_list (dev); - - *znet->tx_cur++ = 6; - memcpy(znet->tx_cur, dev->dev_addr, 6); - znet->tx_cur += 3; - show_dma(dev); - outb(OP0_IA_SETUP | CR0_CHNL, ioaddr); - show_dma(dev); - - update_stop_hit(ioaddr, 8192); - if (znet_debug > 1) printk(KERN_DEBUG "enabling Rx.\n"); - outb(OP0_RCV_ENABLE, ioaddr); - netif_start_queue (dev); -} - -static void update_stop_hit(short ioaddr, unsigned short rx_stop_offset) -{ - outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, ioaddr); - if (znet_debug > 5) - printk(KERN_DEBUG "Updating stop hit with value %02x.\n", - (rx_stop_offset >> 6) | CR1_STOP_REG_UPDATE); - outb((rx_stop_offset >> 6) | CR1_STOP_REG_UPDATE, ioaddr); - outb(OP1_SWIT_TO_PORT_0, ioaddr); -} - -static __exit void znet_cleanup (void) -{ - if (znet_dev) { - struct znet_private *znet = netdev_priv(znet_dev); - - unregister_netdev (znet_dev); - kfree (znet->rx_start); - kfree (znet->tx_start); - free_netdev (znet_dev); - } -} - -module_init (znet_probe); -module_exit (znet_cleanup); |