Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
172
drivers/net/tulip/pnic.c
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172
drivers/net/tulip/pnic.c
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/*
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drivers/net/tulip/pnic.c
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Maintained by Jeff Garzik <jgarzik@pobox.com>
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Copyright 2000,2001 The Linux Kernel Team
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Written/copyright 1994-2001 by Donald Becker.
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
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for more information on this driver, or visit the project
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Web page at http://sourceforge.net/projects/tulip/
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include "tulip.h"
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void pnic_do_nway(struct net_device *dev)
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{
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struct tulip_private *tp = netdev_priv(dev);
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void __iomem *ioaddr = tp->base_addr;
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u32 phy_reg = ioread32(ioaddr + 0xB8);
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u32 new_csr6 = tp->csr6 & ~0x40C40200;
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if (phy_reg & 0x78000000) { /* Ignore baseT4 */
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if (phy_reg & 0x20000000) dev->if_port = 5;
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else if (phy_reg & 0x40000000) dev->if_port = 3;
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else if (phy_reg & 0x10000000) dev->if_port = 4;
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else if (phy_reg & 0x08000000) dev->if_port = 0;
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tp->nwayset = 1;
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new_csr6 = (dev->if_port & 1) ? 0x01860000 : 0x00420000;
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iowrite32(0x32 | (dev->if_port & 1), ioaddr + CSR12);
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if (dev->if_port & 1)
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iowrite32(0x1F868, ioaddr + 0xB8);
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if (phy_reg & 0x30000000) {
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tp->full_duplex = 1;
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new_csr6 |= 0x00000200;
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}
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if (tulip_debug > 1)
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printk(KERN_DEBUG "%s: PNIC autonegotiated status %8.8x, %s.\n",
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dev->name, phy_reg, medianame[dev->if_port]);
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if (tp->csr6 != new_csr6) {
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tp->csr6 = new_csr6;
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/* Restart Tx */
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tulip_restart_rxtx(tp);
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dev->trans_start = jiffies;
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}
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}
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}
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void pnic_lnk_change(struct net_device *dev, int csr5)
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{
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struct tulip_private *tp = netdev_priv(dev);
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void __iomem *ioaddr = tp->base_addr;
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int phy_reg = ioread32(ioaddr + 0xB8);
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if (tulip_debug > 1)
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printk(KERN_DEBUG "%s: PNIC link changed state %8.8x, CSR5 %8.8x.\n",
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dev->name, phy_reg, csr5);
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if (ioread32(ioaddr + CSR5) & TPLnkFail) {
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iowrite32((ioread32(ioaddr + CSR7) & ~TPLnkFail) | TPLnkPass, ioaddr + CSR7);
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/* If we use an external MII, then we mustn't use the
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* internal negotiation.
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*/
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if (tulip_media_cap[dev->if_port] & MediaIsMII)
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return;
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if (! tp->nwayset || jiffies - dev->trans_start > 1*HZ) {
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tp->csr6 = 0x00420000 | (tp->csr6 & 0x0000fdff);
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iowrite32(tp->csr6, ioaddr + CSR6);
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iowrite32(0x30, ioaddr + CSR12);
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iowrite32(0x0201F078, ioaddr + 0xB8); /* Turn on autonegotiation. */
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dev->trans_start = jiffies;
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}
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} else if (ioread32(ioaddr + CSR5) & TPLnkPass) {
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if (tulip_media_cap[dev->if_port] & MediaIsMII) {
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spin_lock(&tp->lock);
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tulip_check_duplex(dev);
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spin_unlock(&tp->lock);
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} else {
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pnic_do_nway(dev);
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}
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iowrite32((ioread32(ioaddr + CSR7) & ~TPLnkPass) | TPLnkFail, ioaddr + CSR7);
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}
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}
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void pnic_timer(unsigned long data)
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{
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struct net_device *dev = (struct net_device *)data;
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struct tulip_private *tp = netdev_priv(dev);
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void __iomem *ioaddr = tp->base_addr;
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int next_tick = 60*HZ;
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if(!ioread32(ioaddr + CSR7)) {
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/* the timer was called due to a work overflow
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* in the interrupt handler. Skip the connection
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* checks, the nic is definitively speaking with
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* his link partner.
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*/
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goto too_good_connection;
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}
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if (tulip_media_cap[dev->if_port] & MediaIsMII) {
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spin_lock_irq(&tp->lock);
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if (tulip_check_duplex(dev) > 0)
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next_tick = 3*HZ;
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spin_unlock_irq(&tp->lock);
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} else {
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int csr12 = ioread32(ioaddr + CSR12);
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int new_csr6 = tp->csr6 & ~0x40C40200;
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int phy_reg = ioread32(ioaddr + 0xB8);
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int csr5 = ioread32(ioaddr + CSR5);
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if (tulip_debug > 1)
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printk(KERN_DEBUG "%s: PNIC timer PHY status %8.8x, %s "
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"CSR5 %8.8x.\n",
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dev->name, phy_reg, medianame[dev->if_port], csr5);
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if (phy_reg & 0x04000000) { /* Remote link fault */
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iowrite32(0x0201F078, ioaddr + 0xB8);
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next_tick = 1*HZ;
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tp->nwayset = 0;
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} else if (phy_reg & 0x78000000) { /* Ignore baseT4 */
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pnic_do_nway(dev);
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next_tick = 60*HZ;
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} else if (csr5 & TPLnkFail) { /* 100baseTx link beat */
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if (tulip_debug > 1)
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printk(KERN_DEBUG "%s: %s link beat failed, CSR12 %4.4x, "
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"CSR5 %8.8x, PHY %3.3x.\n",
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dev->name, medianame[dev->if_port], csr12,
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ioread32(ioaddr + CSR5), ioread32(ioaddr + 0xB8));
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next_tick = 3*HZ;
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if (tp->medialock) {
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} else if (tp->nwayset && (dev->if_port & 1)) {
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next_tick = 1*HZ;
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} else if (dev->if_port == 0) {
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dev->if_port = 3;
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iowrite32(0x33, ioaddr + CSR12);
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new_csr6 = 0x01860000;
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iowrite32(0x1F868, ioaddr + 0xB8);
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} else {
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dev->if_port = 0;
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iowrite32(0x32, ioaddr + CSR12);
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new_csr6 = 0x00420000;
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iowrite32(0x1F078, ioaddr + 0xB8);
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}
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if (tp->csr6 != new_csr6) {
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tp->csr6 = new_csr6;
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/* Restart Tx */
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tulip_restart_rxtx(tp);
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dev->trans_start = jiffies;
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if (tulip_debug > 1)
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printk(KERN_INFO "%s: Changing PNIC configuration to %s "
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"%s-duplex, CSR6 %8.8x.\n",
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dev->name, medianame[dev->if_port],
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tp->full_duplex ? "full" : "half", new_csr6);
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}
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}
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}
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too_good_connection:
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mod_timer(&tp->timer, RUN_AT(next_tick));
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if(!ioread32(ioaddr + CSR7)) {
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if (tulip_debug > 1)
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printk(KERN_INFO "%s: sw timer wakeup.\n", dev->name);
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disable_irq(dev->irq);
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tulip_refill_rx(dev);
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enable_irq(dev->irq);
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iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
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}
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}
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