*************************************************************************/
#define DRV_NAME "pcnet32"
-#define DRV_VERSION "1.30c"
-#define DRV_RELDATE "05.25.2004"
+#define DRV_VERSION "1.30i"
+#define DRV_RELDATE "06.28.2004"
#define PFX DRV_NAME ": "
static const char *version =
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
#include <asm/bitops.h>
#include <asm/dma.h>
#define MAX_UNITS 8 /* More are supported, limit only on options */
static int options[MAX_UNITS];
static int full_duplex[MAX_UNITS];
+static int homepna[MAX_UNITS];
/*
* Theory of Operation
* v1.30b 24 May 2004 Don Fry fix bogus tx carrier errors with 79c973,
* assisted by Bruce Penrod <bmpenrod@endruntechnologies.com>.
* v1.30c 25 May 2004 Don Fry added netif_wake_queue after pcnet32_restart.
+ * v1.30d 01 Jun 2004 Don Fry discard oversize rx packets.
+ * v1.30e 11 Jun 2004 Don Fry recover after fifo error and rx hang.
+ * v1.30f 16 Jun 2004 Don Fry cleanup IRQ to allow 0 and 1 for PCI,
+ * expanding on suggestions from Ralf Baechle <ralf@linux-mips.org>,
+ * and Brian Murphy <brian@murphy.dk>.
+ * v1.30g 22 Jun 2004 Patrick Simmons <psimmons@flash.net> added option
+ * homepna for selecting HomePNA mode for PCNet/Home 79C978.
+ * v1.30h 24 Jun 2004 Don Fry correctly select auto, speed, duplex in bcr32.
+ * v1.30i 28 Jun 2004 Don Fry change to use module_param.
*/
static void pcnet32_probe_vlbus(void);
static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *);
-static int pcnet32_probe1(unsigned long, unsigned int, int, struct pci_dev *);
+static int pcnet32_probe1(unsigned long, int, struct pci_dev *);
static int pcnet32_open(struct net_device *);
static int pcnet32_init_ring(struct net_device *);
static int pcnet32_start_xmit(struct sk_buff *, struct net_device *);
if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) {
/* check if there is really a pcnet chip on that ioaddr */
if ((inb(ioaddr + 14) == 0x57) && (inb(ioaddr + 15) == 0x57)) {
- pcnet32_probe1(ioaddr, 0, 0, NULL);
+ pcnet32_probe1(ioaddr, 0, NULL);
} else {
release_region(ioaddr, PCNET32_TOTAL_SIZE);
}
return -EBUSY;
}
- return pcnet32_probe1(ioaddr, pdev->irq, 1, pdev);
+ return pcnet32_probe1(ioaddr, 1, pdev);
}
* pdev will be NULL when called from pcnet32_probe_vlbus.
*/
static int __devinit
-pcnet32_probe1(unsigned long ioaddr, unsigned int irq_line, int shared,
- struct pci_dev *pdev)
+pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
{
struct pcnet32_private *lp;
dma_addr_t lp_dma_addr;
fdx = 1;
/*
* This is based on specs published at www.amd.com. This section
- * assumes that a card with a 79C978 wants to go into 1Mb HomePNA
- * mode. The 79C978 can also go into standard ethernet, and there
- * probably should be some sort of module option to select the
- * mode by which the card should operate
+ * assumes that a card with a 79C978 wants to go into standard
+ * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode,
+ * and the module option homepna=1 can select this instead.
*/
- /* switch to home wiring mode */
media = a->read_bcr(ioaddr, 49);
+ media &= ~3; /* default to 10Mb ethernet */
+ if (cards_found < MAX_UNITS && homepna[cards_found])
+ media |= 1; /* switch to home wiring mode */
if (pcnet32_debug & NETIF_MSG_PROBE)
- printk(KERN_DEBUG PFX "media reset to %#x.\n", media);
+ printk(KERN_DEBUG PFX "media set to %sMbit mode.\n",
+ (media & 1) ? "1" : "10");
a->write_bcr(ioaddr, 49, media);
break;
case 0x2627:
a->write_csr(ioaddr, 2, (lp->dma_addr + offsetof(struct pcnet32_private,
init_block)) >> 16);
- if (irq_line) {
- dev->irq = irq_line;
- }
-
- if (dev->irq >= 2) {
+ if (pdev) { /* use the IRQ provided by PCI */
+ dev->irq = pdev->irq;
if (pcnet32_debug & NETIF_MSG_PROBE)
printk(" assigned IRQ %d.\n", dev->irq);
} else {
int rc;
unsigned long flags;
- if (dev->irq == 0 ||
- request_irq(dev->irq, &pcnet32_interrupt,
+ if (request_irq(dev->irq, &pcnet32_interrupt,
lp->shared_irq ? SA_SHIRQ : 0, dev->name, (void *)dev)) {
return -EAGAIN;
}
val |= 0x10;
lp->a.write_csr (ioaddr, 124, val);
+ /* 24 Jun 2004 according AMD, in order to change the PHY,
+ * DANAS (or DISPM for 79C976) must be set; then select the speed,
+ * duplex, and/or enable auto negotiation, and clear DANAS */
if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) {
+ lp->a.write_bcr(ioaddr, 32, lp->a.read_bcr(ioaddr, 32) | 0x0080);
/* disable Auto Negotiation, set 10Mpbs, HD */
- val = lp->a.read_bcr (ioaddr, 32) & ~0x38;
+ val = lp->a.read_bcr(ioaddr, 32) & ~0xb8;
if (lp->options & PCNET32_PORT_FD)
val |= 0x10;
if (lp->options & PCNET32_PORT_100)
lp->a.write_bcr (ioaddr, 32, val);
} else {
if (lp->options & PCNET32_PORT_ASEL) {
+ lp->a.write_bcr(ioaddr, 32, lp->a.read_bcr(ioaddr, 32) | 0x0080);
/* enable auto negotiate, setup, disable fd */
val = lp->a.read_bcr(ioaddr, 32) & ~0x98;
val |= 0x20;
int i;
for (i = 0; i < TX_RING_SIZE; i++) {
+ lp->tx_ring[i].status = 0; /* CPU owns buffer */
+ wmb(); /* Make sure adapter sees owner change */
if (lp->tx_skbuff[i]) {
pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i],
lp->tx_skbuff[i]->len, PCI_DMA_TODEVICE);
dev_kfree_skb_any(lp->tx_skbuff[i]);
- lp->tx_skbuff[i] = NULL;
- lp->tx_dma_addr[i] = 0;
}
+ lp->tx_skbuff[i] = NULL;
+ lp->tx_dma_addr[i] = 0;
}
}
skb_reserve (rx_skbuff, 2);
}
+ rmb();
if (lp->rx_dma_addr[i] == 0)
lp->rx_dma_addr[i] = pci_map_single(lp->pci_dev, rx_skbuff->tail,
PKT_BUF_SZ-2, PCI_DMA_FROMDEVICE);
lp->rx_ring[i].base = (u32)le32_to_cpu(lp->rx_dma_addr[i]);
lp->rx_ring[i].buf_length = le16_to_cpu(2-PKT_BUF_SZ);
+ wmb(); /* Make sure owner changes after all others are visible */
lp->rx_ring[i].status = le16_to_cpu(0x8000);
}
/* The Tx buffer address is filled in as needed, but we do need to clear
* the upper ownership bit. */
for (i = 0; i < TX_RING_SIZE; i++) {
+ lp->tx_ring[i].status = 0; /* CPU owns buffer */
+ wmb(); /* Make sure adapter sees owner change */
lp->tx_ring[i].base = 0;
- lp->tx_ring[i].status = 0;
lp->tx_dma_addr[i] = 0;
}
- wmb(); /* Make sure all changes are visible */
lp->init_block.tlen_rlen = le16_to_cpu(TX_RING_LEN_BITS | RX_RING_LEN_BITS);
for (i = 0; i < 6; i++)
offsetof(struct pcnet32_private, rx_ring));
lp->init_block.tx_ring = (u32)le32_to_cpu(lp->dma_addr +
offsetof(struct pcnet32_private, tx_ring));
+ wmb(); /* Make sure all changes are visible */
return 0;
}
+/* the pcnet32 has been issued a stop or reset. Wait for the stop bit
+ * then flush the pending transmit operations, re-initialize the ring,
+ * and tell the chip to initialize.
+ */
static void
pcnet32_restart(struct net_device *dev, unsigned int csr0_bits)
{
unsigned long ioaddr = dev->base_addr;
int i;
+ /* wait for stop */
+ for (i=0; i<100; i++)
+ if (lp->a.read_csr(ioaddr, 0) & 0x0004)
+ break;
+
+ if (i >= 100 && netif_msg_drv(lp))
+ printk(KERN_ERR "%s: pcnet32_restart timed out waiting for stop.\n",
+ dev->name);
+
pcnet32_purge_tx_ring(dev);
if (pcnet32_init_ring(dev))
return;
spin_lock(&lp->lock);
rap = lp->a.read_rap(ioaddr);
- while ((csr0 = lp->a.read_csr (ioaddr, 0)) & 0x8600 && --boguscnt >= 0) {
+ while ((csr0 = lp->a.read_csr (ioaddr, 0)) & 0x8f00 && --boguscnt >= 0) {
if (csr0 == 0xffff) {
break; /* PCMCIA remove happened */
}
pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[entry],
lp->tx_skbuff[entry]->len, PCI_DMA_TODEVICE);
dev_kfree_skb_irq(lp->tx_skbuff[entry]);
- lp->tx_skbuff[entry] = 0;
+ lp->tx_skbuff[entry] = NULL;
lp->tx_dma_addr[entry] = 0;
}
dirty_tx++;
}
if (must_restart) {
- /* stop the chip to clear the error condition, then restart */
- lp->a.write_csr (ioaddr, 0, 0x0004);
+ /* reset the chip to clear the error condition, then restart */
+ lp->a.reset(ioaddr);
+ lp->a.write_csr(ioaddr, 4, 0x0915);
pcnet32_restart(dev, 0x0002);
netif_wake_queue(dev);
}
}
- /* Clear any other interrupt, and set interrupt enable. */
- lp->a.write_csr (ioaddr, 0, 0x7940);
+ /* Set interrupt enable. */
+ lp->a.write_csr (ioaddr, 0, 0x0040);
lp->a.write_rap (ioaddr,rap);
if (netif_msg_intr(lp))
short pkt_len = (le32_to_cpu(lp->rx_ring[entry].msg_length) & 0xfff)-4;
struct sk_buff *skb;
- if (pkt_len < 60) {
+ /* Discard oversize frames. */
+ if (unlikely(pkt_len > PKT_BUF_SZ - 2)) {
+ if (netif_msg_drv(lp))
+ printk(KERN_ERR "%s: Impossible packet size %d!\n",
+ dev->name, pkt_len);
+ lp->stats.rx_errors++;
+ } else if (pkt_len < 60) {
if (netif_msg_rx_err(lp))
printk(KERN_ERR "%s: Runt packet!\n", dev->name);
lp->stats.rx_errors++;
.id_table = pcnet32_pci_tbl,
};
-MODULE_PARM(debug, "i");
+/* An additional parameter that may be passed in... */
+static int debug = -1;
+static int tx_start_pt = -1;
+static int pcnet32_have_pci;
+static int num_params;
+
+module_param(debug, int, 0);
MODULE_PARM_DESC(debug, DRV_NAME " debug level");
-MODULE_PARM(max_interrupt_work, "i");
+module_param(max_interrupt_work, int, 0);
MODULE_PARM_DESC(max_interrupt_work, DRV_NAME " maximum events handled per interrupt");
-MODULE_PARM(rx_copybreak, "i");
+module_param(rx_copybreak, int, 0);
MODULE_PARM_DESC(rx_copybreak, DRV_NAME " copy breakpoint for copy-only-tiny-frames");
-MODULE_PARM(tx_start_pt, "i");
+module_param(tx_start_pt, int, 0);
MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)");
-MODULE_PARM(pcnet32vlb, "i");
+module_param(pcnet32vlb, int, 0);
MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)");
-MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
+module_param_array(options, int, num_params, 0);
MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)");
-MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
+module_param_array(full_duplex, int, num_params, 0);
MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)");
+/* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */
+module_param_array(homepna, int, num_params, 0);
+MODULE_PARM_DESC(homepna, DRV_NAME " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet");
MODULE_AUTHOR("Thomas Bogendoerfer");
MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards");
#define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
-/* An additional parameter that may be passed in... */
-static int debug = -1;
-static int tx_start_pt = -1;
-static int pcnet32_have_pci;
-
static int __init pcnet32_init_module(void)
{
printk(KERN_INFO "%s", version);
git://git.onelab.eu / linux-2.6.git / blobdiff