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-rw-r--r--drivers/net/forcedeth.c2700
1 files changed, 0 insertions, 2700 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
deleted file mode 100644
index 22aec6ed80f..00000000000
--- a/drivers/net/forcedeth.c
+++ /dev/null
@@ -1,2700 +0,0 @@
-/*
- * forcedeth: Ethernet driver for NVIDIA nForce media access controllers.
- *
- * Note: This driver is a cleanroom reimplementation based on reverse
- * engineered documentation written by Carl-Daniel Hailfinger
- * and Andrew de Quincey. It's neither supported nor endorsed
- * by NVIDIA Corp. Use at your own risk.
- *
- * NVIDIA, nForce and other NVIDIA marks are trademarks or registered
- * trademarks of NVIDIA Corporation in the United States and other
- * countries.
- *
- * Copyright (C) 2003,4 Manfred Spraul
- * Copyright (C) 2004 Andrew de Quincey (wol support)
- * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
- * IRQ rate fixes, bigendian fixes, cleanups, verification)
- * Copyright (c) 2004 NVIDIA Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Changelog:
- * 0.01: 05 Oct 2003: First release that compiles without warnings.
- * 0.02: 05 Oct 2003: Fix bug for nv_drain_tx: do not try to free NULL skbs.
- * Check all PCI BARs for the register window.
- * udelay added to mii_rw.
- * 0.03: 06 Oct 2003: Initialize dev->irq.
- * 0.04: 07 Oct 2003: Initialize np->lock, reduce handled irqs, add printks.
- * 0.05: 09 Oct 2003: printk removed again, irq status print tx_timeout.
- * 0.06: 10 Oct 2003: MAC Address read updated, pff flag generation updated,
- * irq mask updated
- * 0.07: 14 Oct 2003: Further irq mask updates.
- * 0.08: 20 Oct 2003: rx_desc.Length initialization added, nv_alloc_rx refill
- * added into irq handler, NULL check for drain_ring.
- * 0.09: 20 Oct 2003: Basic link speed irq implementation. Only handle the
- * requested interrupt sources.
- * 0.10: 20 Oct 2003: First cleanup for release.
- * 0.11: 21 Oct 2003: hexdump for tx added, rx buffer sizes increased.
- * MAC Address init fix, set_multicast cleanup.
- * 0.12: 23 Oct 2003: Cleanups for release.
- * 0.13: 25 Oct 2003: Limit for concurrent tx packets increased to 10.
- * Set link speed correctly. start rx before starting
- * tx (nv_start_rx sets the link speed).
- * 0.14: 25 Oct 2003: Nic dependant irq mask.
- * 0.15: 08 Nov 2003: fix smp deadlock with set_multicast_list during
- * open.
- * 0.16: 15 Nov 2003: include file cleanup for ppc64, rx buffer size
- * increased to 1628 bytes.
- * 0.17: 16 Nov 2003: undo rx buffer size increase. Substract 1 from
- * the tx length.
- * 0.18: 17 Nov 2003: fix oops due to late initialization of dev_stats
- * 0.19: 29 Nov 2003: Handle RxNoBuf, detect & handle invalid mac
- * addresses, really stop rx if already running
- * in nv_start_rx, clean up a bit.
- * 0.20: 07 Dec 2003: alloc fixes
- * 0.21: 12 Jan 2004: additional alloc fix, nic polling fix.
- * 0.22: 19 Jan 2004: reprogram timer to a sane rate, avoid lockup
- * on close.
- * 0.23: 26 Jan 2004: various small cleanups
- * 0.24: 27 Feb 2004: make driver even less anonymous in backtraces
- * 0.25: 09 Mar 2004: wol support
- * 0.26: 03 Jun 2004: netdriver specific annotation, sparse-related fixes
- * 0.27: 19 Jun 2004: Gigabit support, new descriptor rings,
- * added CK804/MCP04 device IDs, code fixes
- * for registers, link status and other minor fixes.
- * 0.28: 21 Jun 2004: Big cleanup, making driver mostly endian safe
- * 0.29: 31 Aug 2004: Add backup timer for link change notification.
- * 0.30: 25 Sep 2004: rx checksum support for nf 250 Gb. Add rx reset
- * into nv_close, otherwise reenabling for wol can
- * cause DMA to kfree'd memory.
- * 0.31: 14 Nov 2004: ethtool support for getting/setting link
- * capabilities.
- * 0.32: 16 Apr 2005: RX_ERROR4 handling added.
- * 0.33: 16 May 2005: Support for MCP51 added.
- * 0.34: 18 Jun 2005: Add DEV_NEED_LINKTIMER to all nForce nics.
- * 0.35: 26 Jun 2005: Support for MCP55 added.
- * 0.36: 28 Jun 2005: Add jumbo frame support.
- * 0.37: 10 Jul 2005: Additional ethtool support, cleanup of pci id list
- * 0.38: 16 Jul 2005: tx irq rewrite: Use global flags instead of
- * per-packet flags.
- * 0.39: 18 Jul 2005: Add 64bit descriptor support.
- * 0.40: 19 Jul 2005: Add support for mac address change.
- * 0.41: 30 Jul 2005: Write back original MAC in nv_close instead
- * of nv_remove
- * 0.42: 06 Aug 2005: Fix lack of link speed initialization
- * in the second (and later) nv_open call
- * 0.43: 10 Aug 2005: Add support for tx checksum.
- * 0.44: 20 Aug 2005: Add support for scatter gather and segmentation.
- *
- * Known bugs:
- * We suspect that on some hardware no TX done interrupts are generated.
- * This means recovery from netif_stop_queue only happens if the hw timer
- * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)
- * and the timer is active in the IRQMask, or if a rx packet arrives by chance.
- * If your hardware reliably generates tx done interrupts, then you can remove
- * DEV_NEED_TIMERIRQ from the driver_data flags.
- * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
- * superfluous timer interrupts from the nic.
- */
-#define FORCEDETH_VERSION "0.44"
-#define DRV_NAME "forcedeth"
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/ethtool.h>
-#include <linux/timer.h>
-#include <linux/skbuff.h>
-#include <linux/mii.h>
-#include <linux/random.h>
-#include <linux/init.h>
-#include <linux/if_vlan.h>
-
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#if 0
-#define dprintk printk
-#else
-#define dprintk(x...) do { } while (0)
-#endif
-
-
-/*
- * Hardware access:
- */
-
-#define DEV_NEED_TIMERIRQ 0x0001 /* set the timer irq flag in the irq mask */
-#define DEV_NEED_LINKTIMER 0x0002 /* poll link settings. Relies on the timer irq */
-#define DEV_HAS_LARGEDESC 0x0004 /* device supports jumbo frames and needs packet format 2 */
-#define DEV_HAS_HIGH_DMA 0x0008 /* device supports 64bit dma */
-#define DEV_HAS_CHECKSUM 0x0010 /* device supports tx and rx checksum offloads */
-
-enum {
- NvRegIrqStatus = 0x000,
-#define NVREG_IRQSTAT_MIIEVENT 0x040
-#define NVREG_IRQSTAT_MASK 0x1ff
- NvRegIrqMask = 0x004,
-#define NVREG_IRQ_RX_ERROR 0x0001
-#define NVREG_IRQ_RX 0x0002
-#define NVREG_IRQ_RX_NOBUF 0x0004
-#define NVREG_IRQ_TX_ERR 0x0008
-#define NVREG_IRQ_TX_OK 0x0010
-#define NVREG_IRQ_TIMER 0x0020
-#define NVREG_IRQ_LINK 0x0040
-#define NVREG_IRQ_TX_ERROR 0x0080
-#define NVREG_IRQ_TX1 0x0100
-#define NVREG_IRQMASK_WANTED 0x00df
-
-#define NVREG_IRQ_UNKNOWN (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \
- NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_TX_ERROR| \
- NVREG_IRQ_TX1))
-
- NvRegUnknownSetupReg6 = 0x008,
-#define NVREG_UNKSETUP6_VAL 3
-
-/*
- * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic
- * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
- */
- NvRegPollingInterval = 0x00c,
-#define NVREG_POLL_DEFAULT 970
- NvRegMisc1 = 0x080,
-#define NVREG_MISC1_HD 0x02
-#define NVREG_MISC1_FORCE 0x3b0f3c
-
- NvRegTransmitterControl = 0x084,
-#define NVREG_XMITCTL_START 0x01
- NvRegTransmitterStatus = 0x088,
-#define NVREG_XMITSTAT_BUSY 0x01
-
- NvRegPacketFilterFlags = 0x8c,
-#define NVREG_PFF_ALWAYS 0x7F0008
-#define NVREG_PFF_PROMISC 0x80
-#define NVREG_PFF_MYADDR 0x20
-
- NvRegOffloadConfig = 0x90,
-#define NVREG_OFFLOAD_HOMEPHY 0x601
-#define NVREG_OFFLOAD_NORMAL RX_NIC_BUFSIZE
- NvRegReceiverControl = 0x094,
-#define NVREG_RCVCTL_START 0x01
- NvRegReceiverStatus = 0x98,
-#define NVREG_RCVSTAT_BUSY 0x01
-
- NvRegRandomSeed = 0x9c,
-#define NVREG_RNDSEED_MASK 0x00ff
-#define NVREG_RNDSEED_FORCE 0x7f00
-#define NVREG_RNDSEED_FORCE2 0x2d00
-#define NVREG_RNDSEED_FORCE3 0x7400
-
- NvRegUnknownSetupReg1 = 0xA0,
-#define NVREG_UNKSETUP1_VAL 0x16070f
- NvRegUnknownSetupReg2 = 0xA4,
-#define NVREG_UNKSETUP2_VAL 0x16
- NvRegMacAddrA = 0xA8,
- NvRegMacAddrB = 0xAC,
- NvRegMulticastAddrA = 0xB0,
-#define NVREG_MCASTADDRA_FORCE 0x01
- NvRegMulticastAddrB = 0xB4,
- NvRegMulticastMaskA = 0xB8,
- NvRegMulticastMaskB = 0xBC,
-
- NvRegPhyInterface = 0xC0,
-#define PHY_RGMII 0x10000000
-
- NvRegTxRingPhysAddr = 0x100,
- NvRegRxRingPhysAddr = 0x104,
- NvRegRingSizes = 0x108,
-#define NVREG_RINGSZ_TXSHIFT 0
-#define NVREG_RINGSZ_RXSHIFT 16
- NvRegUnknownTransmitterReg = 0x10c,
- NvRegLinkSpeed = 0x110,
-#define NVREG_LINKSPEED_FORCE 0x10000
-#define NVREG_LINKSPEED_10 1000
-#define NVREG_LINKSPEED_100 100
-#define NVREG_LINKSPEED_1000 50
-#define NVREG_LINKSPEED_MASK (0xFFF)
- NvRegUnknownSetupReg5 = 0x130,
-#define NVREG_UNKSETUP5_BIT31 (1<<31)
- NvRegUnknownSetupReg3 = 0x13c,
-#define NVREG_UNKSETUP3_VAL1 0x200010
- NvRegTxRxControl = 0x144,
-#define NVREG_TXRXCTL_KICK 0x0001
-#define NVREG_TXRXCTL_BIT1 0x0002
-#define NVREG_TXRXCTL_BIT2 0x0004
-#define NVREG_TXRXCTL_IDLE 0x0008
-#define NVREG_TXRXCTL_RESET 0x0010
-#define NVREG_TXRXCTL_RXCHECK 0x0400
-#define NVREG_TXRXCTL_DESC_1 0
-#define NVREG_TXRXCTL_DESC_2 0x02100
-#define NVREG_TXRXCTL_DESC_3 0x02200
- NvRegMIIStatus = 0x180,
-#define NVREG_MIISTAT_ERROR 0x0001
-#define NVREG_MIISTAT_LINKCHANGE 0x0008
-#define NVREG_MIISTAT_MASK 0x000f
-#define NVREG_MIISTAT_MASK2 0x000f
- NvRegUnknownSetupReg4 = 0x184,
-#define NVREG_UNKSETUP4_VAL 8
-
- NvRegAdapterControl = 0x188,
-#define NVREG_ADAPTCTL_START 0x02
-#define NVREG_ADAPTCTL_LINKUP 0x04
-#define NVREG_ADAPTCTL_PHYVALID 0x40000
-#define NVREG_ADAPTCTL_RUNNING 0x100000
-#define NVREG_ADAPTCTL_PHYSHIFT 24
- NvRegMIISpeed = 0x18c,
-#define NVREG_MIISPEED_BIT8 (1<<8)
-#define NVREG_MIIDELAY 5
- NvRegMIIControl = 0x190,
-#define NVREG_MIICTL_INUSE 0x08000
-#define NVREG_MIICTL_WRITE 0x00400
-#define NVREG_MIICTL_ADDRSHIFT 5
- NvRegMIIData = 0x194,
- NvRegWakeUpFlags = 0x200,
-#define NVREG_WAKEUPFLAGS_VAL 0x7770
-#define NVREG_WAKEUPFLAGS_BUSYSHIFT 24
-#define NVREG_WAKEUPFLAGS_ENABLESHIFT 16
-#define NVREG_WAKEUPFLAGS_D3SHIFT 12
-#define NVREG_WAKEUPFLAGS_D2SHIFT 8
-#define NVREG_WAKEUPFLAGS_D1SHIFT 4
-#define NVREG_WAKEUPFLAGS_D0SHIFT 0
-#define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT 0x01
-#define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT 0x02
-#define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04
-#define NVREG_WAKEUPFLAGS_ENABLE 0x1111
-
- NvRegPatternCRC = 0x204,
- NvRegPatternMask = 0x208,
- NvRegPowerCap = 0x268,
-#define NVREG_POWERCAP_D3SUPP (1<<30)
-#define NVREG_POWERCAP_D2SUPP (1<<26)
-#define NVREG_POWERCAP_D1SUPP (1<<25)
- NvRegPowerState = 0x26c,
-#define NVREG_POWERSTATE_POWEREDUP 0x8000
-#define NVREG_POWERSTATE_VALID 0x0100
-#define NVREG_POWERSTATE_MASK 0x0003
-#define NVREG_POWERSTATE_D0 0x0000
-#define NVREG_POWERSTATE_D1 0x0001
-#define NVREG_POWERSTATE_D2 0x0002
-#define NVREG_POWERSTATE_D3 0x0003
-};
-
-/* Big endian: should work, but is untested */
-struct ring_desc {
- u32 PacketBuffer;
- u32 FlagLen;
-};
-
-struct ring_desc_ex {
- u32 PacketBufferHigh;
- u32 PacketBufferLow;
- u32 Reserved;
- u32 FlagLen;
-};
-
-typedef union _ring_type {
- struct ring_desc* orig;
- struct ring_desc_ex* ex;
-} ring_type;
-
-#define FLAG_MASK_V1 0xffff0000
-#define FLAG_MASK_V2 0xffffc000
-#define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
-#define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
-
-#define NV_TX_LASTPACKET (1<<16)
-#define NV_TX_RETRYERROR (1<<19)
-#define NV_TX_FORCED_INTERRUPT (1<<24)
-#define NV_TX_DEFERRED (1<<26)
-#define NV_TX_CARRIERLOST (1<<27)
-#define NV_TX_LATECOLLISION (1<<28)
-#define NV_TX_UNDERFLOW (1<<29)
-#define NV_TX_ERROR (1<<30)
-#define NV_TX_VALID (1<<31)
-
-#define NV_TX2_LASTPACKET (1<<29)
-#define NV_TX2_RETRYERROR (1<<18)
-#define NV_TX2_FORCED_INTERRUPT (1<<30)
-#define NV_TX2_DEFERRED (1<<25)
-#define NV_TX2_CARRIERLOST (1<<26)
-#define NV_TX2_LATECOLLISION (1<<27)
-#define NV_TX2_UNDERFLOW (1<<28)
-/* error and valid are the same for both */
-#define NV_TX2_ERROR (1<<30)
-#define NV_TX2_VALID (1<<31)
-#define NV_TX2_TSO (1<<28)
-#define NV_TX2_TSO_SHIFT 14
-#define NV_TX2_CHECKSUM_L3 (1<<27)
-#define NV_TX2_CHECKSUM_L4 (1<<26)
-
-#define NV_RX_DESCRIPTORVALID (1<<16)
-#define NV_RX_MISSEDFRAME (1<<17)
-#define NV_RX_SUBSTRACT1 (1<<18)
-#define NV_RX_ERROR1 (1<<23)
-#define NV_RX_ERROR2 (1<<24)
-#define NV_RX_ERROR3 (1<<25)
-#define NV_RX_ERROR4 (1<<26)
-#define NV_RX_CRCERR (1<<27)
-#define NV_RX_OVERFLOW (1<<28)
-#define NV_RX_FRAMINGERR (1<<29)
-#define NV_RX_ERROR (1<<30)
-#define NV_RX_AVAIL (1<<31)
-
-#define NV_RX2_CHECKSUMMASK (0x1C000000)
-#define NV_RX2_CHECKSUMOK1 (0x10000000)
-#define NV_RX2_CHECKSUMOK2 (0x14000000)
-#define NV_RX2_CHECKSUMOK3 (0x18000000)
-#define NV_RX2_DESCRIPTORVALID (1<<29)
-#define NV_RX2_SUBSTRACT1 (1<<25)
-#define NV_RX2_ERROR1 (1<<18)
-#define NV_RX2_ERROR2 (1<<19)
-#define NV_RX2_ERROR3 (1<<20)
-#define NV_RX2_ERROR4 (1<<21)
-#define NV_RX2_CRCERR (1<<22)
-#define NV_RX2_OVERFLOW (1<<23)
-#define NV_RX2_FRAMINGERR (1<<24)
-/* error and avail are the same for both */
-#define NV_RX2_ERROR (1<<30)
-#define NV_RX2_AVAIL (1<<31)
-
-/* Miscelaneous hardware related defines: */
-#define NV_PCI_REGSZ 0x270
-
-/* various timeout delays: all in usec */
-#define NV_TXRX_RESET_DELAY 4
-#define NV_TXSTOP_DELAY1 10
-#define NV_TXSTOP_DELAY1MAX 500000
-#define NV_TXSTOP_DELAY2 100
-#define NV_RXSTOP_DELAY1 10
-#define NV_RXSTOP_DELAY1MAX 500000
-#define NV_RXSTOP_DELAY2 100
-#define NV_SETUP5_DELAY 5
-#define NV_SETUP5_DELAYMAX 50000
-#define NV_POWERUP_DELAY 5
-#define NV_POWERUP_DELAYMAX 5000
-#define NV_MIIBUSY_DELAY 50
-#define NV_MIIPHY_DELAY 10
-#define NV_MIIPHY_DELAYMAX 10000
-
-#define NV_WAKEUPPATTERNS 5
-#define NV_WAKEUPMASKENTRIES 4
-
-/* General driver defaults */
-#define NV_WATCHDOG_TIMEO (5*HZ)
-
-#define RX_RING 128
-#define TX_RING 64
-/*
- * If your nic mysteriously hangs then try to reduce the limits
- * to 1/0: It might be required to set NV_TX_LASTPACKET in the
- * last valid ring entry. But this would be impossible to
- * implement - probably a disassembly error.
- */
-#define TX_LIMIT_STOP 63
-#define TX_LIMIT_START 62
-
-/* rx/tx mac addr + type + vlan + align + slack*/
-#define NV_RX_HEADERS (64)
-/* even more slack. */
-#define NV_RX_ALLOC_PAD (64)
-
-/* maximum mtu size */
-#define NV_PKTLIMIT_1 ETH_DATA_LEN /* hard limit not known */
-#define NV_PKTLIMIT_2 9100 /* Actual limit according to NVidia: 9202 */
-
-#define OOM_REFILL (1+HZ/20)
-#define POLL_WAIT (1+HZ/100)
-#define LINK_TIMEOUT (3*HZ)
-
-/*
- * desc_ver values:
- * The nic supports three different descriptor types:
- * - DESC_VER_1: Original
- * - DESC_VER_2: support for jumbo frames.
- * - DESC_VER_3: 64-bit format.
- */
-#define DESC_VER_1 1
-#define DESC_VER_2 2
-#define DESC_VER_3 3
-
-/* PHY defines */
-#define PHY_OUI_MARVELL 0x5043
-#define PHY_OUI_CICADA 0x03f1
-#define PHYID1_OUI_MASK 0x03ff
-#define PHYID1_OUI_SHFT 6
-#define PHYID2_OUI_MASK 0xfc00
-#define PHYID2_OUI_SHFT 10
-#define PHY_INIT1 0x0f000
-#define PHY_INIT2 0x0e00
-#define PHY_INIT3 0x01000
-#define PHY_INIT4 0x0200
-#define PHY_INIT5 0x0004
-#define PHY_INIT6 0x02000
-#define PHY_GIGABIT 0x0100
-
-#define PHY_TIMEOUT 0x1
-#define PHY_ERROR 0x2
-
-#define PHY_100 0x1
-#define PHY_1000 0x2
-#define PHY_HALF 0x100
-
-/* FIXME: MII defines that should be added to <linux/mii.h> */
-#define MII_1000BT_CR 0x09
-#define MII_1000BT_SR 0x0a
-#define ADVERTISE_1000FULL 0x0200
-#define ADVERTISE_1000HALF 0x0100
-#define LPA_1000FULL 0x0800
-#define LPA_1000HALF 0x0400
-
-
-/*
- * SMP locking:
- * All hardware access under dev->priv->lock, except the performance
- * critical parts:
- * - rx is (pseudo-) lockless: it relies on the single-threading provided
- * by the arch code for interrupts.
- * - tx setup is lockless: it relies on dev->xmit_lock. Actual submission
- * needs dev->priv->lock :-(
- * - set_multicast_list: preparation lockless, relies on dev->xmit_lock.
- */
-
-/* in dev: base, irq */
-struct fe_priv {
- spinlock_t lock;
-
- /* General data:
- * Locking: spin_lock(&np->lock); */
- struct net_device_stats stats;
- int in_shutdown;
- u32 linkspeed;
- int duplex;
- int autoneg;
- int fixed_mode;
- int phyaddr;
- int wolenabled;
- unsigned int phy_oui;
- u16 gigabit;
-
- /* General data: RO fields */
- dma_addr_t ring_addr;
- struct pci_dev *pci_dev;
- u32 orig_mac[2];
- u32 irqmask;
- u32 desc_ver;
- u32 txrxctl_bits;
-
- void __iomem *base;
-
- /* rx specific fields.
- * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
- */
- ring_type rx_ring;
- unsigned int cur_rx, refill_rx;
- struct sk_buff *rx_skbuff[RX_RING];
- dma_addr_t rx_dma[RX_RING];
- unsigned int rx_buf_sz;
- unsigned int pkt_limit;
- struct timer_list oom_kick;
- struct timer_list nic_poll;
-
- /* media detection workaround.
- * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
- */
- int need_linktimer;
- unsigned long link_timeout;
- /*
- * tx specific fields.
- */
- ring_type tx_ring;
- unsigned int next_tx, nic_tx;
- struct sk_buff *tx_skbuff[TX_RING];
- dma_addr_t tx_dma[TX_RING];
- u32 tx_flags;
-};
-
-/*
- * Maximum number of loops until we assume that a bit in the irq mask
- * is stuck. Overridable with module param.
- */
-static int max_interrupt_work = 5;
-
-static inline struct fe_priv *get_nvpriv(struct net_device *dev)
-{
- return netdev_priv(dev);
-}
-
-static inline u8 __iomem *get_hwbase(struct net_device *dev)
-{
- return ((struct fe_priv *)netdev_priv(dev))->base;
-}
-
-static inline void pci_push(u8 __iomem *base)
-{
- /* force out pending posted writes */
- readl(base);
-}
-
-static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v)
-{
- return le32_to_cpu(prd->FlagLen)
- & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2);
-}
-
-static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v)
-{
- return le32_to_cpu(prd->FlagLen) & LEN_MASK_V2;
-}
-
-static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
- int delay, int delaymax, const char *msg)
-{
- u8 __iomem *base = get_hwbase(dev);
-
- pci_push(base);
- do {
- udelay(delay);
- delaymax -= delay;
- if (delaymax < 0) {
- if (msg)
- printk(msg);
- return 1;
- }
- } while ((readl(base + offset) & mask) != target);
- return 0;
-}
-
-#define MII_READ (-1)
-/* mii_rw: read/write a register on the PHY.
- *
- * Caller must guarantee serialization
- */
-static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
-{
- u8 __iomem *base = get_hwbase(dev);
- u32 reg;
- int retval;
-
- writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
-
- reg = readl(base + NvRegMIIControl);
- if (reg & NVREG_MIICTL_INUSE) {
- writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl);
- udelay(NV_MIIBUSY_DELAY);
- }
-
- reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
- if (value != MII_READ) {
- writel(value, base + NvRegMIIData);
- reg |= NVREG_MIICTL_WRITE;
- }
- writel(reg, base + NvRegMIIControl);
-
- if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0,
- NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX, NULL)) {
- dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d timed out.\n",
- dev->name, miireg, addr);
- retval = -1;
- } else if (value != MII_READ) {
- /* it was a write operation - fewer failures are detectable */
- dprintk(KERN_DEBUG "%s: mii_rw wrote 0x%x to reg %d at PHY %d\n",
- dev->name, value, miireg, addr);
- retval = 0;
- } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) {
- dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d failed.\n",
- dev->name, miireg, addr);
- retval = -1;
- } else {
- retval = readl(base + NvRegMIIData);
- dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n",
- dev->name, miireg, addr, retval);
- }
-
- return retval;
-}
-
-static int phy_reset(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u32 miicontrol;
- unsigned int tries = 0;
-
- miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
- miicontrol |= BMCR_RESET;
- if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) {
- return -1;
- }
-
- /* wait for 500ms */
- msleep(500);
-
- /* must wait till reset is deasserted */
- while (miicontrol & BMCR_RESET) {
- msleep(10);
- miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
- /* FIXME: 100 tries seem excessive */
- if (tries++ > 100)
- return -1;
- }
- return 0;
-}
-
-static int phy_init(struct net_device *dev)
-{
- struct fe_priv *np = get_nvpriv(dev);
- u8 __iomem *base = get_hwbase(dev);
- u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg;
-
- /* set advertise register */
- reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
- reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|0x800|0x400);
- if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) {
- printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev));
- return PHY_ERROR;
- }
-
- /* get phy interface type */
- phyinterface = readl(base + NvRegPhyInterface);
-
- /* see if gigabit phy */
- mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
- if (mii_status & PHY_GIGABIT) {
- np->gigabit = PHY_GIGABIT;
- mii_control_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
- mii_control_1000 &= ~ADVERTISE_1000HALF;
- if (phyinterface & PHY_RGMII)
- mii_control_1000 |= ADVERTISE_1000FULL;
- else
- mii_control_1000 &= ~ADVERTISE_1000FULL;
-
- if (mii_rw(dev, np->phyaddr, MII_1000BT_CR, mii_control_1000)) {
- printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
- return PHY_ERROR;
- }
- }
- else
- np->gigabit = 0;
-
- /* reset the phy */
- if (phy_reset(dev)) {
- printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev));
- return PHY_ERROR;
- }
-
- /* phy vendor specific configuration */
- if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) {
- phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
- phy_reserved &= ~(PHY_INIT1 | PHY_INIT2);
- phy_reserved |= (PHY_INIT3 | PHY_INIT4);
- if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) {
- printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
- return PHY_ERROR;
- }
- phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
- phy_reserved |= PHY_INIT5;
- if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) {
- printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
- return PHY_ERROR;
- }
- }
- if (np->phy_oui == PHY_OUI_CICADA) {
- phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
- phy_reserved |= PHY_INIT6;
- if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) {
- printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
- return PHY_ERROR;
- }
- }
-
- /* restart auto negotiation */
- mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
- mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
- if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
- return PHY_ERROR;
- }
-
- return 0;
-}
-
-static void nv_start_rx(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
-
- dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name);
- /* Already running? Stop it. */
- if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) {
- writel(0, base + NvRegReceiverControl);
- pci_push(base);
- }
- writel(np->linkspeed, base + NvRegLinkSpeed);
- pci_push(base);
- writel(NVREG_RCVCTL_START, base + NvRegReceiverControl);
- dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n",
- dev->name, np->duplex, np->linkspeed);
- pci_push(base);
-}
-
-static void nv_stop_rx(struct net_device *dev)
-{
- u8 __iomem *base = get_hwbase(dev);
-
- dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name);
- writel(0, base + NvRegReceiverControl);
- reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
- NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
- KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
-
- udelay(NV_RXSTOP_DELAY2);
- writel(0, base + NvRegLinkSpeed);
-}
-
-static void nv_start_tx(struct net_device *dev)
-{
- u8 __iomem *base = get_hwbase(dev);
-
- dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name);
- writel(NVREG_XMITCTL_START, base + NvRegTransmitterControl);
- pci_push(base);
-}
-
-static void nv_stop_tx(struct net_device *dev)
-{
- u8 __iomem *base = get_hwbase(dev);
-
- dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name);
- writel(0, base + NvRegTransmitterControl);
- reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
- NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
- KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
-
- udelay(NV_TXSTOP_DELAY2);
- writel(0, base + NvRegUnknownTransmitterReg);
-}
-
-static void nv_txrx_reset(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
-
- dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name);
- writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
- pci_push(base);
- udelay(NV_TXRX_RESET_DELAY);
- writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
- pci_push(base);
-}
-
-/*
- * nv_get_stats: dev->get_stats function
- * Get latest stats value from the nic.
- * Called with read_lock(&dev_base_lock) held for read -
- * only synchronized against unregister_netdevice.
- */
-static struct net_device_stats *nv_get_stats(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
-
- /* It seems that the nic always generates interrupts and doesn't
- * accumulate errors internally. Thus the current values in np->stats
- * are already up to date.
- */
- return &np->stats;
-}
-
-/*
- * nv_alloc_rx: fill rx ring entries.
- * Return 1 if the allocations for the skbs failed and the
- * rx engine is without Available descriptors
- */
-static int nv_alloc_rx(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- unsigned int refill_rx = np->refill_rx;
- int nr;
-
- while (np->cur_rx != refill_rx) {
- struct sk_buff *skb;
-
- nr = refill_rx % RX_RING;
- if (np->rx_skbuff[nr] == NULL) {
-
- skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
- if (!skb)
- break;
-
- skb->dev = dev;
- np->rx_skbuff[nr] = skb;
- } else {
- skb = np->rx_skbuff[nr];
- }
- np->rx_dma[nr] = pci_map_single(np->pci_dev, skb->data, skb->len,
- PCI_DMA_FROMDEVICE);
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- np->rx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->rx_dma[nr]);
- wmb();
- np->rx_ring.orig[nr].FlagLen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
- } else {
- np->rx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->rx_dma[nr]) >> 32;
- np->rx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->rx_dma[nr]) & 0x0FFFFFFFF;
- wmb();
- np->rx_ring.ex[nr].FlagLen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL);
- }
- dprintk(KERN_DEBUG "%s: nv_alloc_rx: Packet %d marked as Available\n",
- dev->name, refill_rx);
- refill_rx++;
- }
- np->refill_rx = refill_rx;
- if (np->cur_rx - refill_rx == RX_RING)
- return 1;
- return 0;
-}
-
-static void nv_do_rx_refill(unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct fe_priv *np = netdev_priv(dev);
-
- disable_irq(dev->irq);
- if (nv_alloc_rx(dev)) {
- spin_lock(&np->lock);
- if (!np->in_shutdown)
- mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
- spin_unlock(&np->lock);
- }
- enable_irq(dev->irq);
-}
-
-static void nv_init_rx(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- int i;
-
- np->cur_rx = RX_RING;
- np->refill_rx = 0;
- for (i = 0; i < RX_RING; i++)
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- np->rx_ring.orig[i].FlagLen = 0;
- else
- np->rx_ring.ex[i].FlagLen = 0;
-}
-
-static void nv_init_tx(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- int i;
-
- np->next_tx = np->nic_tx = 0;
- for (i = 0; i < TX_RING; i++) {
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- np->tx_ring.orig[i].FlagLen = 0;
- else
- np->tx_ring.ex[i].FlagLen = 0;
- np->tx_skbuff[i] = NULL;
- }
-}
-
-static int nv_init_ring(struct net_device *dev)
-{
- nv_init_tx(dev);
- nv_init_rx(dev);
- return nv_alloc_rx(dev);
-}
-
-static void nv_release_txskb(struct net_device *dev, unsigned int skbnr)
-{
- struct fe_priv *np = netdev_priv(dev);
- struct sk_buff *skb = np->tx_skbuff[skbnr];
- unsigned int j, entry, fragments;
-
- dprintk(KERN_INFO "%s: nv_release_txskb for skbnr %d, skb %p\n",
- dev->name, skbnr, np->tx_skbuff[skbnr]);
-
- entry = skbnr;
- if ((fragments = skb_shinfo(skb)->nr_frags) != 0) {
- for (j = fragments; j >= 1; j--) {
- skb_frag_t *frag = &skb_shinfo(skb)->frags[j-1];
- pci_unmap_page(np->pci_dev, np->tx_dma[entry],
- frag->size,
- PCI_DMA_TODEVICE);
- entry = (entry - 1) % TX_RING;
- }
- }
- pci_unmap_single(np->pci_dev, np->tx_dma[entry],
- skb->len - skb->data_len,
- PCI_DMA_TODEVICE);
- dev_kfree_skb_irq(skb);
- np->tx_skbuff[skbnr] = NULL;
-}
-
-static void nv_drain_tx(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- unsigned int i;
-
- for (i = 0; i < TX_RING; i++) {
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- np->tx_ring.orig[i].FlagLen = 0;
- else
- np->tx_ring.ex[i].FlagLen = 0;
- if (np->tx_skbuff[i]) {
- nv_release_txskb(dev, i);
- np->stats.tx_dropped++;
- }
- }
-}
-
-static void nv_drain_rx(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- int i;
- for (i = 0; i < RX_RING; i++) {
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- np->rx_ring.orig[i].FlagLen = 0;
- else
- np->rx_ring.ex[i].FlagLen = 0;
- wmb();
- if (np->rx_skbuff[i]) {
- pci_unmap_single(np->pci_dev, np->rx_dma[i],
- np->rx_skbuff[i]->len,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb(np->rx_skbuff[i]);
- np->rx_skbuff[i] = NULL;
- }
- }
-}
-
-static void drain_ring(struct net_device *dev)
-{
- nv_drain_tx(dev);
- nv_drain_rx(dev);
-}
-
-/*
- * nv_start_xmit: dev->hard_start_xmit function
- * Called with dev->xmit_lock held.
- */
-static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
- unsigned int fragments = skb_shinfo(skb)->nr_frags;
- unsigned int nr = (np->next_tx + fragments) % TX_RING;
- unsigned int i;
-
- spin_lock_irq(&np->lock);
-
- if ((np->next_tx - np->nic_tx + fragments) > TX_LIMIT_STOP) {
- spin_unlock_irq(&np->lock);
- netif_stop_queue(dev);
- return NETDEV_TX_BUSY;
- }
-
- np->tx_skbuff[nr] = skb;
-
- if (fragments) {
- dprintk(KERN_DEBUG "%s: nv_start_xmit: buffer contains %d fragments\n", dev->name, fragments);
- /* setup descriptors in reverse order */
- for (i = fragments; i >= 1; i--) {
- skb_frag_t *frag = &skb_shinfo(skb)->frags[i-1];
- np->tx_dma[nr] = pci_map_page(np->pci_dev, frag->page, frag->page_offset, frag->size,
- PCI_DMA_TODEVICE);
-
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]);
- np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (frag->size-1) | np->tx_flags | tx_flags_extra);
- } else {
- np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32;
- np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF;
- np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (frag->size-1) | np->tx_flags | tx_flags_extra);
- }
-
- nr = (nr - 1) % TX_RING;
-
- if (np->desc_ver == DESC_VER_1)
- tx_flags_extra &= ~NV_TX_LASTPACKET;
- else
- tx_flags_extra &= ~NV_TX2_LASTPACKET;
- }
- }
-
-#ifdef NETIF_F_TSO
- if (skb_shinfo(skb)->tso_size)
- tx_flags_extra |= NV_TX2_TSO | (skb_shinfo(skb)->tso_size << NV_TX2_TSO_SHIFT);
- else
-#endif
- tx_flags_extra |= (skb->ip_summed == CHECKSUM_HW ? (NV_TX2_CHECKSUM_L3|NV_TX2_CHECKSUM_L4) : 0);
-
- np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data, skb->len-skb->data_len,
- PCI_DMA_TODEVICE);
-
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]);
- np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (skb->len-skb->data_len-1) | np->tx_flags | tx_flags_extra);
- } else {
- np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32;
- np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF;
- np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (skb->len-skb->data_len-1) | np->tx_flags | tx_flags_extra);
- }
-
- dprintk(KERN_DEBUG "%s: nv_start_xmit: packet packet %d queued for transmission. tx_flags_extra: %x\n",
- dev->name, np->next_tx, tx_flags_extra);
- {
- int j;
- for (j=0; j<64; j++) {
- if ((j%16) == 0)
- dprintk("\n%03x:", j);
- dprintk(" %02x", ((unsigned char*)skb->data)[j]);
- }
- dprintk("\n");
- }
-
- np->next_tx += 1 + fragments;
-
- dev->trans_start = jiffies;
- spin_unlock_irq(&np->lock);
- writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
- pci_push(get_hwbase(dev));
- return NETDEV_TX_OK;
-}
-
-/*
- * nv_tx_done: check for completed packets, release the skbs.
- *
- * Caller must own np->lock.
- */
-static void nv_tx_done(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u32 Flags;
- unsigned int i;
- struct sk_buff *skb;
-
- while (np->nic_tx != np->next_tx) {
- i = np->nic_tx % TX_RING;
-
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- Flags = le32_to_cpu(np->tx_ring.orig[i].FlagLen);
- else
- Flags = le32_to_cpu(np->tx_ring.ex[i].FlagLen);
-
- dprintk(KERN_DEBUG "%s: nv_tx_done: looking at packet %d, Flags 0x%x.\n",
- dev->name, np->nic_tx, Flags);
- if (Flags & NV_TX_VALID)
- break;
- if (np->desc_ver == DESC_VER_1) {
- if (Flags & NV_TX_LASTPACKET) {
- skb = np->tx_skbuff[i];
- if (Flags & (NV_TX_RETRYERROR|NV_TX_CARRIERLOST|NV_TX_LATECOLLISION|
- NV_TX_UNDERFLOW|NV_TX_ERROR)) {
- if (Flags & NV_TX_UNDERFLOW)
- np->stats.tx_fifo_errors++;
- if (Flags & NV_TX_CARRIERLOST)
- np->stats.tx_carrier_errors++;
- np->stats.tx_errors++;
- } else {
- np->stats.tx_packets++;
- np->stats.tx_bytes += skb->len;
- }
- nv_release_txskb(dev, i);
- }
- } else {
- if (Flags & NV_TX2_LASTPACKET) {
- skb = np->tx_skbuff[i];
- if (Flags & (NV_TX2_RETRYERROR|NV_TX2_CARRIERLOST|NV_TX2_LATECOLLISION|
- NV_TX2_UNDERFLOW|NV_TX2_ERROR)) {
- if (Flags & NV_TX2_UNDERFLOW)
- np->stats.tx_fifo_errors++;
- if (Flags & NV_TX2_CARRIERLOST)
- np->stats.tx_carrier_errors++;
- np->stats.tx_errors++;
- } else {
- np->stats.tx_packets++;
- np->stats.tx_bytes += skb->len;
- }
- nv_release_txskb(dev, i);
- }
- }
- np->nic_tx++;
- }
- if (np->next_tx - np->nic_tx < TX_LIMIT_START)
- netif_wake_queue(dev);
-}
-
-/*
- * nv_tx_timeout: dev->tx_timeout function
- * Called with dev->xmit_lock held.
- */
-static void nv_tx_timeout(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
-
- printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name,
- readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK);
-
- {
- int i;
-
- printk(KERN_INFO "%s: Ring at %lx: next %d nic %d\n",
- dev->name, (unsigned long)np->ring_addr,
- np->next_tx, np->nic_tx);
- printk(KERN_INFO "%s: Dumping tx registers\n", dev->name);
- for (i=0;i<0x400;i+= 32) {
- printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
- i,
- readl(base + i + 0), readl(base + i + 4),
- readl(base + i + 8), readl(base + i + 12),
- readl(base + i + 16), readl(base + i + 20),
- readl(base + i + 24), readl(base + i + 28));
- }
- printk(KERN_INFO "%s: Dumping tx ring\n", dev->name);
- for (i=0;i<TX_RING;i+= 4) {
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- printk(KERN_INFO "%03x: %08x %08x // %08x %08x // %08x %08x // %08x %08x\n",
- i,
- le32_to_cpu(np->tx_ring.orig[i].PacketBuffer),
- le32_to_cpu(np->tx_ring.orig[i].FlagLen),
- le32_to_cpu(np->tx_ring.orig[i+1].PacketBuffer),
- le32_to_cpu(np->tx_ring.orig[i+1].FlagLen),
- le32_to_cpu(np->tx_ring.orig[i+2].PacketBuffer),
- le32_to_cpu(np->tx_ring.orig[i+2].FlagLen),
- le32_to_cpu(np->tx_ring.orig[i+3].PacketBuffer),
- le32_to_cpu(np->tx_ring.orig[i+3].FlagLen));
- } else {
- printk(KERN_INFO "%03x: %08x %08x %08x // %08x %08x %08x // %08x %08x %08x // %08x %08x %08x\n",
- i,
- le32_to_cpu(np->tx_ring.ex[i].PacketBufferHigh),
- le32_to_cpu(np->tx_ring.ex[i].PacketBufferLow),
- le32_to_cpu(np->tx_ring.ex[i].FlagLen),
- le32_to_cpu(np->tx_ring.ex[i+1].PacketBufferHigh),
- le32_to_cpu(np->tx_ring.ex[i+1].PacketBufferLow),
- le32_to_cpu(np->tx_ring.ex[i+1].FlagLen),
- le32_to_cpu(np->tx_ring.ex[i+2].PacketBufferHigh),
- le32_to_cpu(np->tx_ring.ex[i+2].PacketBufferLow),
- le32_to_cpu(np->tx_ring.ex[i+2].FlagLen),
- le32_to_cpu(np->tx_ring.ex[i+3].PacketBufferHigh),
- le32_to_cpu(np->tx_ring.ex[i+3].PacketBufferLow),
- le32_to_cpu(np->tx_ring.ex[i+3].FlagLen));
- }
- }
- }
-
- spin_lock_irq(&np->lock);
-
- /* 1) stop tx engine */
- nv_stop_tx(dev);
-
- /* 2) check that the packets were not sent already: */
- nv_tx_done(dev);
-
- /* 3) if there are dead entries: clear everything */
- if (np->next_tx != np->nic_tx) {
- printk(KERN_DEBUG "%s: tx_timeout: dead entries!\n", dev->name);
- nv_drain_tx(dev);
- np->next_tx = np->nic_tx = 0;
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
- else
- writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
- netif_wake_queue(dev);
- }
-
- /* 4) restart tx engine */
- nv_start_tx(dev);
- spin_unlock_irq(&np->lock);
-}
-
-/*
- * Called when the nic notices a mismatch between the actual data len on the
- * wire and the len indicated in the 802 header
- */
-static int nv_getlen(struct net_device *dev, void *packet, int datalen)
-{
- int hdrlen; /* length of the 802 header */
- int protolen; /* length as stored in the proto field */
-
- /* 1) calculate len according to header */
- if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
- protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto );
- hdrlen = VLAN_HLEN;
- } else {
- protolen = ntohs( ((struct ethhdr *)packet)->h_proto);
- hdrlen = ETH_HLEN;
- }
- dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n",
- dev->name, datalen, protolen, hdrlen);
- if (protolen > ETH_DATA_LEN)
- return datalen; /* Value in proto field not a len, no checks possible */
-
- protolen += hdrlen;
- /* consistency checks: */
- if (datalen > ETH_ZLEN) {
- if (datalen >= protolen) {
- /* more data on wire than in 802 header, trim of
- * additional data.
- */
- dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
- dev->name, protolen);
- return protolen;
- } else {
- /* less data on wire than mentioned in header.
- * Discard the packet.
- */
- dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n",
- dev->name);
- return -1;
- }
- } else {
- /* short packet. Accept only if 802 values are also short */
- if (protolen > ETH_ZLEN) {
- dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n",
- dev->name);
- return -1;
- }
- dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
- dev->name, datalen);
- return datalen;
- }
-}
-
-static void nv_rx_process(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u32 Flags;
-
- for (;;) {
- struct sk_buff *skb;
- int len;
- int i;
- if (np->cur_rx - np->refill_rx >= RX_RING)
- break; /* we scanned the whole ring - do not continue */
-
- i = np->cur_rx % RX_RING;
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- Flags = le32_to_cpu(np->rx_ring.orig[i].FlagLen);
- len = nv_descr_getlength(&np->rx_ring.orig[i], np->desc_ver);
- } else {
- Flags = le32_to_cpu(np->rx_ring.ex[i].FlagLen);
- len = nv_descr_getlength_ex(&np->rx_ring.ex[i], np->desc_ver);
- }
-
- dprintk(KERN_DEBUG "%s: nv_rx_process: looking at packet %d, Flags 0x%x.\n",
- dev->name, np->cur_rx, Flags);
-
- if (Flags & NV_RX_AVAIL)
- break; /* still owned by hardware, */
-
- /*
- * the packet is for us - immediately tear down the pci mapping.
- * TODO: check if a prefetch of the first cacheline improves
- * the performance.
- */
- pci_unmap_single(np->pci_dev, np->rx_dma[i],
- np->rx_skbuff[i]->len,
- PCI_DMA_FROMDEVICE);
-
- {
- int j;
- dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",Flags);
- for (j=0; j<64; j++) {
- if ((j%16) == 0)
- dprintk("\n%03x:", j);
- dprintk(" %02x", ((unsigned char*)np->rx_skbuff[i]->data)[j]);
- }
- dprintk("\n");
- }
- /* look at what we actually got: */
- if (np->desc_ver == DESC_VER_1) {
- if (!(Flags & NV_RX_DESCRIPTORVALID))
- goto next_pkt;
-
- if (Flags & NV_RX_MISSEDFRAME) {
- np->stats.rx_missed_errors++;
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3)) {
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & NV_RX_CRCERR) {
- np->stats.rx_crc_errors++;
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & NV_RX_OVERFLOW) {
- np->stats.rx_over_errors++;
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & NV_RX_ERROR4) {
- len = nv_getlen(dev, np->rx_skbuff[i]->data, len);
- if (len < 0) {
- np->stats.rx_errors++;
- goto next_pkt;
- }
- }
- /* framing errors are soft errors. */
- if (Flags & NV_RX_FRAMINGERR) {
- if (Flags & NV_RX_SUBSTRACT1) {
- len--;
- }
- }
- } else {
- if (!(Flags & NV_RX2_DESCRIPTORVALID))
- goto next_pkt;
-
- if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3)) {
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & NV_RX2_CRCERR) {
- np->stats.rx_crc_errors++;
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & NV_RX2_OVERFLOW) {
- np->stats.rx_over_errors++;
- np->stats.rx_errors++;
- goto next_pkt;
- }
- if (Flags & NV_RX2_ERROR4) {
- len = nv_getlen(dev, np->rx_skbuff[i]->data, len);
- if (len < 0) {
- np->stats.rx_errors++;
- goto next_pkt;
- }
- }
- /* framing errors are soft errors */
- if (Flags & NV_RX2_FRAMINGERR) {
- if (Flags & NV_RX2_SUBSTRACT1) {
- len--;
- }
- }
- Flags &= NV_RX2_CHECKSUMMASK;
- if (Flags == NV_RX2_CHECKSUMOK1 ||
- Flags == NV_RX2_CHECKSUMOK2 ||
- Flags == NV_RX2_CHECKSUMOK3) {
- dprintk(KERN_DEBUG "%s: hw checksum hit!.\n", dev->name);
- np->rx_skbuff[i]->ip_summed = CHECKSUM_UNNECESSARY;
- } else {
- dprintk(KERN_DEBUG "%s: hwchecksum miss!.\n", dev->name);
- }
- }
- /* got a valid packet - forward it to the network core */
- skb = np->rx_skbuff[i];
- np->rx_skbuff[i] = NULL;
-
- skb_put(skb, len);
- skb->protocol = eth_type_trans(skb, dev);
- dprintk(KERN_DEBUG "%s: nv_rx_process: packet %d with %d bytes, proto %d accepted.\n",
- dev->name, np->cur_rx, len, skb->protocol);
- netif_rx(skb);
- dev->last_rx = jiffies;
- np->stats.rx_packets++;
- np->stats.rx_bytes += len;
-next_pkt:
- np->cur_rx++;
- }
-}
-
-static void set_bufsize(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
-
- if (dev->mtu <= ETH_DATA_LEN)
- np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS;
- else
- np->rx_buf_sz = dev->mtu + NV_RX_HEADERS;
-}
-
-/*
- * nv_change_mtu: dev->change_mtu function
- * Called with dev_base_lock held for read.
- */
-static int nv_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct fe_priv *np = netdev_priv(dev);
- int old_mtu;
-
- if (new_mtu < 64 || new_mtu > np->pkt_limit)
- return -EINVAL;
-
- old_mtu = dev->mtu;
- dev->mtu = new_mtu;
-
- /* return early if the buffer sizes will not change */
- if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
- return 0;
- if (old_mtu == new_mtu)
- return 0;
-
- /* synchronized against open : rtnl_lock() held by caller */
- if (netif_running(dev)) {
- u8 __iomem *base = get_hwbase(dev);
- /*
- * It seems that the nic preloads valid ring entries into an
- * internal buffer. The procedure for flushing everything is
- * guessed, there is probably a simpler approach.
- * Changing the MTU is a rare event, it shouldn't matter.
- */
- disable_irq(dev->irq);
- spin_lock_bh(&dev->xmit_lock);
- spin_lock(&np->lock);
- /* stop engines */
- nv_stop_rx(dev);
- nv_stop_tx(dev);
- nv_txrx_reset(dev);
- /* drain rx queue */
- nv_drain_rx(dev);
- nv_drain_tx(dev);
- /* reinit driver view of the rx queue */
- nv_init_rx(dev);
- nv_init_tx(dev);
- /* alloc new rx buffers */
- set_bufsize(dev);
- if (nv_alloc_rx(dev)) {
- if (!np->in_shutdown)
- mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
- }
- /* reinit nic view of the rx queue */
- writel(np->rx_buf_sz, base + NvRegOffloadConfig);
- writel((u32) np->ring_addr, base + NvRegRxRingPhysAddr);
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
- else
- writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
- writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT),
- base + NvRegRingSizes);
- pci_push(base);
- writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
- pci_push(base);
-
- /* restart rx engine */
- nv_start_rx(dev);
- nv_start_tx(dev);
- spin_unlock(&np->lock);
- spin_unlock_bh(&dev->xmit_lock);
- enable_irq(dev->irq);
- }
- return 0;
-}
-
-static void nv_copy_mac_to_hw(struct net_device *dev)
-{
- u8 __iomem *base = get_hwbase(dev);
- u32 mac[2];
-
- mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
- (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
- mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
-
- writel(mac[0], base + NvRegMacAddrA);
- writel(mac[1], base + NvRegMacAddrB);
-}
-
-/*
- * nv_set_mac_address: dev->set_mac_address function
- * Called with rtnl_lock() held.
- */
-static int nv_set_mac_address(struct net_device *dev, void *addr)
-{
- struct fe_priv *np = netdev_priv(dev);
- struct sockaddr *macaddr = (struct sockaddr*)addr;
-
- if(!is_valid_ether_addr(macaddr->sa_data))
- return -EADDRNOTAVAIL;
-
- /* synchronized against open : rtnl_lock() held by caller */
- memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN);
-
- if (netif_running(dev)) {
- spin_lock_bh(&dev->xmit_lock);
- spin_lock_irq(&np->lock);
-
- /* stop rx engine */
- nv_stop_rx(dev);
-
- /* set mac address */
- nv_copy_mac_to_hw(dev);
-
- /* restart rx engine */
- nv_start_rx(dev);
- spin_unlock_irq(&np->lock);
- spin_unlock_bh(&dev->xmit_lock);
- } else {
- nv_copy_mac_to_hw(dev);
- }
- return 0;
-}
-
-/*
- * nv_set_multicast: dev->set_multicast function
- * Called with dev->xmit_lock held.
- */
-static void nv_set_multicast(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
- u32 addr[2];
- u32 mask[2];
- u32 pff;
-
- memset(addr, 0, sizeof(addr));
- memset(mask, 0, sizeof(mask));
-
- if (dev->flags & IFF_PROMISC) {
- printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
- pff = NVREG_PFF_PROMISC;
- } else {
- pff = NVREG_PFF_MYADDR;
-
- if (dev->flags & IFF_ALLMULTI || dev->mc_list) {
- u32 alwaysOff[2];
- u32 alwaysOn[2];
-
- alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff;
- if (dev->flags & IFF_ALLMULTI) {
- alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0;
- } else {
- struct dev_mc_list *walk;
-
- walk = dev->mc_list;
- while (walk != NULL) {
- u32 a, b;
- a = le32_to_cpu(*(u32 *) walk->dmi_addr);
- b = le16_to_cpu(*(u16 *) (&walk->dmi_addr[4]));
- alwaysOn[0] &= a;
- alwaysOff[0] &= ~a;
- alwaysOn[1] &= b;
- alwaysOff[1] &= ~b;
- walk = walk->next;
- }
- }
- addr[0] = alwaysOn[0];
- addr[1] = alwaysOn[1];
- mask[0] = alwaysOn[0] | alwaysOff[0];
- mask[1] = alwaysOn[1] | alwaysOff[1];
- }
- }
- addr[0] |= NVREG_MCASTADDRA_FORCE;
- pff |= NVREG_PFF_ALWAYS;
- spin_lock_irq(&np->lock);
- nv_stop_rx(dev);
- writel(addr[0], base + NvRegMulticastAddrA);
- writel(addr[1], base + NvRegMulticastAddrB);
- writel(mask[0], base + NvRegMulticastMaskA);
- writel(mask[1], base + NvRegMulticastMaskB);
- writel(pff, base + NvRegPacketFilterFlags);
- dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n",
- dev->name);
- nv_start_rx(dev);
- spin_unlock_irq(&np->lock);
-}
-
-static int nv_update_linkspeed(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
- int adv, lpa;
- int newls = np->linkspeed;
- int newdup = np->duplex;
- int mii_status;
- int retval = 0;
- u32 control_1000, status_1000, phyreg;
-
- /* BMSR_LSTATUS is latched, read it twice:
- * we want the current value.
- */
- mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
- mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
-
- if (!(mii_status & BMSR_LSTATUS)) {
- dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n",
- dev->name);
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 0;
- retval = 0;
- goto set_speed;
- }
-
- if (np->autoneg == 0) {
- dprintk(KERN_DEBUG "%s: nv_update_linkspeed: autoneg off, PHY set to 0x%04x.\n",
- dev->name, np->fixed_mode);
- if (np->fixed_mode & LPA_100FULL) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
- newdup = 1;
- } else if (np->fixed_mode & LPA_100HALF) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
- newdup = 0;
- } else if (np->fixed_mode & LPA_10FULL) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 1;
- } else {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 0;
- }
- retval = 1;
- goto set_speed;
- }
- /* check auto negotiation is complete */
- if (!(mii_status & BMSR_ANEGCOMPLETE)) {
- /* still in autonegotiation - configure nic for 10 MBit HD and wait. */
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 0;
- retval = 0;
- dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name);
- goto set_speed;
- }
-
- retval = 1;
- if (np->gigabit == PHY_GIGABIT) {
- control_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
- status_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_SR, MII_READ);
-
- if ((control_1000 & ADVERTISE_1000FULL) &&
- (status_1000 & LPA_1000FULL)) {
- dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n",
- dev->name);
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000;
- newdup = 1;
- goto set_speed;
- }
- }
-
- adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
- lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
- dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
- dev->name, adv, lpa);
-
- /* FIXME: handle parallel detection properly */
- lpa = lpa & adv;
- if (lpa & LPA_100FULL) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
- newdup = 1;
- } else if (lpa & LPA_100HALF) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
- newdup = 0;
- } else if (lpa & LPA_10FULL) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 1;
- } else if (lpa & LPA_10HALF) {
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 0;
- } else {
- dprintk(KERN_DEBUG "%s: bad ability %04x - falling back to 10HD.\n", dev->name, lpa);
- newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- newdup = 0;
- }
-
-set_speed:
- if (np->duplex == newdup && np->linkspeed == newls)
- return retval;
-
- dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n",
- dev->name, np->linkspeed, np->duplex, newls, newdup);
-
- np->duplex = newdup;
- np->linkspeed = newls;
-
- if (np->gigabit == PHY_GIGABIT) {
- phyreg = readl(base + NvRegRandomSeed);
- phyreg &= ~(0x3FF00);
- if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10)
- phyreg |= NVREG_RNDSEED_FORCE3;
- else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
- phyreg |= NVREG_RNDSEED_FORCE2;
- else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
- phyreg |= NVREG_RNDSEED_FORCE;
- writel(phyreg, base + NvRegRandomSeed);
- }
-
- phyreg = readl(base + NvRegPhyInterface);
- phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
- if (np->duplex == 0)
- phyreg |= PHY_HALF;
- if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100)
- phyreg |= PHY_100;
- else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
- phyreg |= PHY_1000;
- writel(phyreg, base + NvRegPhyInterface);
-
- writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
- base + NvRegMisc1);
- pci_push(base);
- writel(np->linkspeed, base + NvRegLinkSpeed);
- pci_push(base);
-
- return retval;
-}
-
-static void nv_linkchange(struct net_device *dev)
-{
- if (nv_update_linkspeed(dev)) {
- if (netif_carrier_ok(dev)) {
- nv_stop_rx(dev);
- } else {
- netif_carrier_on(dev);
- printk(KERN_INFO "%s: link up.\n", dev->name);
- }
- nv_start_rx(dev);
- } else {
- if (netif_carrier_ok(dev)) {
- netif_carrier_off(dev);
- printk(KERN_INFO "%s: link down.\n", dev->name);
- nv_stop_rx(dev);
- }
- }
-}
-
-static void nv_link_irq(struct net_device *dev)
-{
- u8 __iomem *base = get_hwbase(dev);
- u32 miistat;
-
- miistat = readl(base + NvRegMIIStatus);
- writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
- dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat);
-
- if (miistat & (NVREG_MIISTAT_LINKCHANGE))
- nv_linkchange(dev);
- dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name);
-}
-
-static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs)
-{
- struct net_device *dev = (struct net_device *) data;
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
- u32 events;
- int i;
-
- dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name);
-
- for (i=0; ; i++) {
- events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
- writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
- pci_push(base);
- dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
- if (!(events & np->irqmask))
- break;
-
- if (events & (NVREG_IRQ_TX1|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_ERROR|NVREG_IRQ_TX_ERR)) {
- spin_lock(&np->lock);
- nv_tx_done(dev);
- spin_unlock(&np->lock);
- }
-
- if (events & (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF)) {
- nv_rx_process(dev);
- if (nv_alloc_rx(dev)) {
- spin_lock(&np->lock);
- if (!np->in_shutdown)
- mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
- spin_unlock(&np->lock);
- }
- }
-
- if (events & NVREG_IRQ_LINK) {
- spin_lock(&np->lock);
- nv_link_irq(dev);
- spin_unlock(&np->lock);
- }
- if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
- spin_lock(&np->lock);
- nv_linkchange(dev);
- spin_unlock(&np->lock);
- np->link_timeout = jiffies + LINK_TIMEOUT;
- }
- if (events & (NVREG_IRQ_TX_ERR)) {
- dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
- dev->name, events);
- }
- if (events & (NVREG_IRQ_UNKNOWN)) {
- printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
- dev->name, events);
- }
- if (i > max_interrupt_work) {
- spin_lock(&np->lock);
- /* disable interrupts on the nic */
- writel(0, base + NvRegIrqMask);
- pci_push(base);
-
- if (!np->in_shutdown)
- mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
- printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
- spin_unlock(&np->lock);
- break;
- }
-
- }
- dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name);
-
- return IRQ_RETVAL(i);
-}
-
-static void nv_do_nic_poll(unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
-
- disable_irq(dev->irq);
- /* FIXME: Do we need synchronize_irq(dev->irq) here? */
- /*
- * reenable interrupts on the nic, we have to do this before calling
- * nv_nic_irq because that may decide to do otherwise
- */
- writel(np->irqmask, base + NvRegIrqMask);
- pci_push(base);
- nv_nic_irq((int) 0, (void *) data, (struct pt_regs *) NULL);
- enable_irq(dev->irq);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void nv_poll_controller(struct net_device *dev)
-{
- nv_do_nic_poll((unsigned long) dev);
-}
-#endif
-
-static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- struct fe_priv *np = netdev_priv(dev);
- strcpy(info->driver, "forcedeth");
- strcpy(info->version, FORCEDETH_VERSION);
- strcpy(info->bus_info, pci_name(np->pci_dev));
-}
-
-static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
-{
- struct fe_priv *np = netdev_priv(dev);
- wolinfo->supported = WAKE_MAGIC;
-
- spin_lock_irq(&np->lock);
- if (np->wolenabled)
- wolinfo->wolopts = WAKE_MAGIC;
- spin_unlock_irq(&np->lock);
-}
-
-static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
-
- spin_lock_irq(&np->lock);
- if (wolinfo->wolopts == 0) {
- writel(0, base + NvRegWakeUpFlags);
- np->wolenabled = 0;
- }
- if (wolinfo->wolopts & WAKE_MAGIC) {
- writel(NVREG_WAKEUPFLAGS_ENABLE, base + NvRegWakeUpFlags);
- np->wolenabled = 1;
- }
- spin_unlock_irq(&np->lock);
- return 0;
-}
-
-static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
-{
- struct fe_priv *np = netdev_priv(dev);
- int adv;
-
- spin_lock_irq(&np->lock);
- ecmd->port = PORT_MII;
- if (!netif_running(dev)) {
- /* We do not track link speed / duplex setting if the
- * interface is disabled. Force a link check */
- nv_update_linkspeed(dev);
- }
- switch(np->linkspeed & (NVREG_LINKSPEED_MASK)) {
- case NVREG_LINKSPEED_10:
- ecmd->speed = SPEED_10;
- break;
- case NVREG_LINKSPEED_100:
- ecmd->speed = SPEED_100;
- break;
- case NVREG_LINKSPEED_1000:
- ecmd->speed = SPEED_1000;
- break;
- }
- ecmd->duplex = DUPLEX_HALF;
- if (np->duplex)
- ecmd->duplex = DUPLEX_FULL;
-
- ecmd->autoneg = np->autoneg;
-
- ecmd->advertising = ADVERTISED_MII;
- if (np->autoneg) {
- ecmd->advertising |= ADVERTISED_Autoneg;
- adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
- } else {
- adv = np->fixed_mode;
- }
- if (adv & ADVERTISE_10HALF)
- ecmd->advertising |= ADVERTISED_10baseT_Half;
- if (adv & ADVERTISE_10FULL)
- ecmd->advertising |= ADVERTISED_10baseT_Full;
- if (adv & ADVERTISE_100HALF)
- ecmd->advertising |= ADVERTISED_100baseT_Half;
- if (adv & ADVERTISE_100FULL)
- ecmd->advertising |= ADVERTISED_100baseT_Full;
- if (np->autoneg && np->gigabit == PHY_GIGABIT) {
- adv = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
- if (adv & ADVERTISE_1000FULL)
- ecmd->advertising |= ADVERTISED_1000baseT_Full;
- }
-
- ecmd->supported = (SUPPORTED_Autoneg |
- SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
- SUPPORTED_MII);
- if (np->gigabit == PHY_GIGABIT)
- ecmd->supported |= SUPPORTED_1000baseT_Full;
-
- ecmd->phy_address = np->phyaddr;
- ecmd->transceiver = XCVR_EXTERNAL;
-
- /* ignore maxtxpkt, maxrxpkt for now */
- spin_unlock_irq(&np->lock);
- return 0;
-}
-
-static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
-{
- struct fe_priv *np = netdev_priv(dev);
-
- if (ecmd->port != PORT_MII)
- return -EINVAL;
- if (ecmd->transceiver != XCVR_EXTERNAL)
- return -EINVAL;
- if (ecmd->phy_address != np->phyaddr) {
- /* TODO: support switching between multiple phys. Should be
- * trivial, but not enabled due to lack of test hardware. */
- return -EINVAL;
- }
- if (ecmd->autoneg == AUTONEG_ENABLE) {
- u32 mask;
-
- mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
- if (np->gigabit == PHY_GIGABIT)
- mask |= ADVERTISED_1000baseT_Full;
-
- if ((ecmd->advertising & mask) == 0)
- return -EINVAL;
-
- } else if (ecmd->autoneg == AUTONEG_DISABLE) {
- /* Note: autonegotiation disable, speed 1000 intentionally
- * forbidden - noone should need that. */
-
- if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
- return -EINVAL;
- if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
- return -EINVAL;
- } else {
- return -EINVAL;
- }
-
- spin_lock_irq(&np->lock);
- if (ecmd->autoneg == AUTONEG_ENABLE) {
- int adv, bmcr;
-
- np->autoneg = 1;
-
- /* advertise only what has been requested */
- adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
- adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
- if (ecmd->advertising & ADVERTISED_10baseT_Half)
- adv |= ADVERTISE_10HALF;
- if (ecmd->advertising & ADVERTISED_10baseT_Full)
- adv |= ADVERTISE_10FULL;
- if (ecmd->advertising & ADVERTISED_100baseT_Half)
- adv |= ADVERTISE_100HALF;
- if (ecmd->advertising & ADVERTISED_100baseT_Full)
- adv |= ADVERTISE_100FULL;
- mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
-
- if (np->gigabit == PHY_GIGABIT) {
- adv = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
- adv &= ~ADVERTISE_1000FULL;
- if (ecmd->advertising & ADVERTISED_1000baseT_Full)
- adv |= ADVERTISE_1000FULL;
- mii_rw(dev, np->phyaddr, MII_1000BT_CR, adv);
- }
-
- bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
- bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
- mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
-
- } else {
- int adv, bmcr;
-
- np->autoneg = 0;
-
- adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
- adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
- if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF)
- adv |= ADVERTISE_10HALF;
- if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL)
- adv |= ADVERTISE_10FULL;
- if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF)
- adv |= ADVERTISE_100HALF;
- if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL)
- adv |= ADVERTISE_100FULL;
- mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
- np->fixed_mode = adv;
-
- if (np->gigabit == PHY_GIGABIT) {
- adv = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
- adv &= ~ADVERTISE_1000FULL;
- mii_rw(dev, np->phyaddr, MII_1000BT_CR, adv);
- }
-
- bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
- bmcr |= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_FULLDPLX);
- if (adv & (ADVERTISE_10FULL|ADVERTISE_100FULL))
- bmcr |= BMCR_FULLDPLX;
- if (adv & (ADVERTISE_100HALF|ADVERTISE_100FULL))
- bmcr |= BMCR_SPEED100;
- mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
-
- if (netif_running(dev)) {
- /* Wait a bit and then reconfigure the nic. */
- udelay(10);
- nv_linkchange(dev);
- }
- }
- spin_unlock_irq(&np->lock);
-
- return 0;
-}
-
-#define FORCEDETH_REGS_VER 1
-#define FORCEDETH_REGS_SIZE 0x400 /* 256 32-bit registers */
-
-static int nv_get_regs_len(struct net_device *dev)
-{
- return FORCEDETH_REGS_SIZE;
-}
-
-static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
- u32 *rbuf = buf;
- int i;
-
- regs->version = FORCEDETH_REGS_VER;
- spin_lock_irq(&np->lock);
- for (i=0;i<FORCEDETH_REGS_SIZE/sizeof(u32);i++)
- rbuf[i] = readl(base + i*sizeof(u32));
- spin_unlock_irq(&np->lock);
-}
-
-static int nv_nway_reset(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- int ret;
-
- spin_lock_irq(&np->lock);
- if (np->autoneg) {
- int bmcr;
-
- bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
- bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
- mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
-
- ret = 0;
- } else {
- ret = -EINVAL;
- }
- spin_unlock_irq(&np->lock);
-
- return ret;
-}
-
-static struct ethtool_ops ops = {
- .get_drvinfo = nv_get_drvinfo,
- .get_link = ethtool_op_get_link,
- .get_wol = nv_get_wol,
- .set_wol = nv_set_wol,
- .get_settings = nv_get_settings,
- .set_settings = nv_set_settings,
- .get_regs_len = nv_get_regs_len,
- .get_regs = nv_get_regs,
- .nway_reset = nv_nway_reset,
- .get_perm_addr = ethtool_op_get_perm_addr,
-};
-
-static int nv_open(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base = get_hwbase(dev);
- int ret, oom, i;
-
- dprintk(KERN_DEBUG "nv_open: begin\n");
-
- /* 1) erase previous misconfiguration */
- /* 4.1-1: stop adapter: ignored, 4.3 seems to be overkill */
- writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
- writel(0, base + NvRegMulticastAddrB);
- writel(0, base + NvRegMulticastMaskA);
- writel(0, base + NvRegMulticastMaskB);
- writel(0, base + NvRegPacketFilterFlags);
-
- writel(0, base + NvRegTransmitterControl);
- writel(0, base + NvRegReceiverControl);
-
- writel(0, base + NvRegAdapterControl);
-
- /* 2) initialize descriptor rings */
- set_bufsize(dev);
- oom = nv_init_ring(dev);
-
- writel(0, base + NvRegLinkSpeed);
- writel(0, base + NvRegUnknownTransmitterReg);
- nv_txrx_reset(dev);
- writel(0, base + NvRegUnknownSetupReg6);
-
- np->in_shutdown = 0;
-
- /* 3) set mac address */
- nv_copy_mac_to_hw(dev);
-
- /* 4) give hw rings */
- writel((u32) np->ring_addr, base + NvRegRxRingPhysAddr);
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
- else
- writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
- writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT),
- base + NvRegRingSizes);
-
- /* 5) continue setup */
- writel(np->linkspeed, base + NvRegLinkSpeed);
- writel(NVREG_UNKSETUP3_VAL1, base + NvRegUnknownSetupReg3);
- writel(np->txrxctl_bits, base + NvRegTxRxControl);
- pci_push(base);
- writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl);
- reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
- NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX,
- KERN_INFO "open: SetupReg5, Bit 31 remained off\n");
-
- writel(0, base + NvRegUnknownSetupReg4);
- writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
- writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus);
-
- /* 6) continue setup */
- writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1);
- writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus);
- writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags);
- writel(np->rx_buf_sz, base + NvRegOffloadConfig);
-
- writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus);
- get_random_bytes(&i, sizeof(i));
- writel(NVREG_RNDSEED_FORCE | (i&NVREG_RNDSEED_MASK), base + NvRegRandomSeed);
- writel(NVREG_UNKSETUP1_VAL, base + NvRegUnknownSetupReg1);
- writel(NVREG_UNKSETUP2_VAL, base + NvRegUnknownSetupReg2);
- writel(NVREG_POLL_DEFAULT, base + NvRegPollingInterval);
- writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
- writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING,
- base + NvRegAdapterControl);
- writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
- writel(NVREG_UNKSETUP4_VAL, base + NvRegUnknownSetupReg4);
- writel(NVREG_WAKEUPFLAGS_VAL, base + NvRegWakeUpFlags);
-
- i = readl(base + NvRegPowerState);
- if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0)
- writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState);
-
- pci_push(base);
- udelay(10);
- writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState);
-
- writel(0, base + NvRegIrqMask);
- pci_push(base);
- writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus);
- writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
- pci_push(base);
-
- ret = request_irq(dev->irq, &nv_nic_irq, SA_SHIRQ, dev->name, dev);
- if (ret)
- goto out_drain;
-
- /* ask for interrupts */
- writel(np->irqmask, base + NvRegIrqMask);
-
- spin_lock_irq(&np->lock);
- writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
- writel(0, base + NvRegMulticastAddrB);
- writel(0, base + NvRegMulticastMaskA);
- writel(0, base + NvRegMulticastMaskB);
- writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
- /* One manual link speed update: Interrupts are enabled, future link
- * speed changes cause interrupts and are handled by nv_link_irq().
- */
- {
- u32 miistat;
- miistat = readl(base + NvRegMIIStatus);
- writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
- dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat);
- }
- /* set linkspeed to invalid value, thus force nv_update_linkspeed
- * to init hw */
- np->linkspeed = 0;
- ret = nv_update_linkspeed(dev);
- nv_start_rx(dev);
- nv_start_tx(dev);
- netif_start_queue(dev);
- if (ret) {
- netif_carrier_on(dev);
- } else {
- printk("%s: no link during initialization.\n", dev->name);
- netif_carrier_off(dev);
- }
- if (oom)
- mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
- spin_unlock_irq(&np->lock);
-
- return 0;
-out_drain:
- drain_ring(dev);
- return ret;
-}
-
-static int nv_close(struct net_device *dev)
-{
- struct fe_priv *np = netdev_priv(dev);
- u8 __iomem *base;
-
- spin_lock_irq(&np->lock);
- np->in_shutdown = 1;
- spin_unlock_irq(&np->lock);
- synchronize_irq(dev->irq);
-
- del_timer_sync(&np->oom_kick);
- del_timer_sync(&np->nic_poll);
-
- netif_stop_queue(dev);
- spin_lock_irq(&np->lock);
- nv_stop_tx(dev);
- nv_stop_rx(dev);
- nv_txrx_reset(dev);
-
- /* disable interrupts on the nic or we will lock up */
- base = get_hwbase(dev);
- writel(0, base + NvRegIrqMask);
- pci_push(base);
- dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name);
-
- spin_unlock_irq(&np->lock);
-
- free_irq(dev->irq, dev);
-
- drain_ring(dev);
-
- if (np->wolenabled)
- nv_start_rx(dev);
-
- /* special op: write back the misordered MAC address - otherwise
- * the next nv_probe would see a wrong address.
- */
- writel(np->orig_mac[0], base + NvRegMacAddrA);
- writel(np->orig_mac[1], base + NvRegMacAddrB);
-
- /* FIXME: power down nic */
-
- return 0;
-}
-
-static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
-{
- struct net_device *dev;
- struct fe_priv *np;
- unsigned long addr;
- u8 __iomem *base;
- int err, i;
-
- dev = alloc_etherdev(sizeof(struct fe_priv));
- err = -ENOMEM;
- if (!dev)
- goto out;
-
- np = netdev_priv(dev);
- np->pci_dev = pci_dev;
- spin_lock_init(&np->lock);
- SET_MODULE_OWNER(dev);
- SET_NETDEV_DEV(dev, &pci_dev->dev);
-
- init_timer(&np->oom_kick);
- np->oom_kick.data = (unsigned long) dev;
- np->oom_kick.function = &nv_do_rx_refill; /* timer handler */
- init_timer(&np->nic_poll);
- np->nic_poll.data = (unsigned long) dev;
- np->nic_poll.function = &nv_do_nic_poll; /* timer handler */
-
- err = pci_enable_device(pci_dev);
- if (err) {
- printk(KERN_INFO "forcedeth: pci_enable_dev failed (%d) for device %s\n",
- err, pci_name(pci_dev));
- goto out_free;
- }
-
- pci_set_master(pci_dev);
-
- err = pci_request_regions(pci_dev, DRV_NAME);
- if (err < 0)
- goto out_disable;
-
- err = -EINVAL;
- addr = 0;
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- dprintk(KERN_DEBUG "%s: resource %d start %p len %ld flags 0x%08lx.\n",
- pci_name(pci_dev), i, (void*)pci_resource_start(pci_dev, i),
- pci_resource_len(pci_dev, i),
- pci_resource_flags(pci_dev, i));
- if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM &&
- pci_resource_len(pci_dev, i) >= NV_PCI_REGSZ) {
- addr = pci_resource_start(pci_dev, i);
- break;
- }
- }
- if (i == DEVICE_COUNT_RESOURCE) {
- printk(KERN_INFO "forcedeth: Couldn't find register window for device %s.\n",
- pci_name(pci_dev));
- goto out_relreg;
- }
-
- /* handle different descriptor versions */
- if (id->driver_data & DEV_HAS_HIGH_DMA) {
- /* packet format 3: supports 40-bit addressing */
- np->desc_ver = DESC_VER_3;
- if (pci_set_dma_mask(pci_dev, 0x0000007fffffffffULL)) {
- printk(KERN_INFO "forcedeth: 64-bit DMA failed, using 32-bit addressing for device %s.\n",
- pci_name(pci_dev));
- } else {
- dev->features |= NETIF_F_HIGHDMA;
- }
- np->txrxctl_bits = NVREG_TXRXCTL_DESC_3;
- } else if (id->driver_data & DEV_HAS_LARGEDESC) {
- /* packet format 2: supports jumbo frames */
- np->desc_ver = DESC_VER_2;
- np->txrxctl_bits = NVREG_TXRXCTL_DESC_2;
- } else {
- /* original packet format */
- np->desc_ver = DESC_VER_1;
- np->txrxctl_bits = NVREG_TXRXCTL_DESC_1;
- }
-
- np->pkt_limit = NV_PKTLIMIT_1;
- if (id->driver_data & DEV_HAS_LARGEDESC)
- np->pkt_limit = NV_PKTLIMIT_2;
-
- if (id->driver_data & DEV_HAS_CHECKSUM) {
- np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
- dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG;
-#ifdef NETIF_F_TSO
- dev->features |= NETIF_F_TSO;
-#endif
- }
-
- err = -ENOMEM;
- np->base = ioremap(addr, NV_PCI_REGSZ);
- if (!np->base)
- goto out_relreg;
- dev->base_addr = (unsigned long)np->base;
-
- dev->irq = pci_dev->irq;
-
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- np->rx_ring.orig = pci_alloc_consistent(pci_dev,
- sizeof(struct ring_desc) * (RX_RING + TX_RING),
- &np->ring_addr);
- if (!np->rx_ring.orig)
- goto out_unmap;
- np->tx_ring.orig = &np->rx_ring.orig[RX_RING];
- } else {
- np->rx_ring.ex = pci_alloc_consistent(pci_dev,
- sizeof(struct ring_desc_ex) * (RX_RING + TX_RING),
- &np->ring_addr);
- if (!np->rx_ring.ex)
- goto out_unmap;
- np->tx_ring.ex = &np->rx_ring.ex[RX_RING];
- }
-
- dev->open = nv_open;
- dev->stop = nv_close;
- dev->hard_start_xmit = nv_start_xmit;
- dev->get_stats = nv_get_stats;
- dev->change_mtu = nv_change_mtu;
- dev->set_mac_address = nv_set_mac_address;
- dev->set_multicast_list = nv_set_multicast;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = nv_poll_controller;
-#endif
- SET_ETHTOOL_OPS(dev, &ops);
- dev->tx_timeout = nv_tx_timeout;
- dev->watchdog_timeo = NV_WATCHDOG_TIMEO;
-
- pci_set_drvdata(pci_dev, dev);
-
- /* read the mac address */
- base = get_hwbase(dev);
- np->orig_mac[0] = readl(base + NvRegMacAddrA);
- np->orig_mac[1] = readl(base + NvRegMacAddrB);
-
- dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff;
- dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff;
- dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
- dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
- dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff;
- dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff;
- memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
-
- if (!is_valid_ether_addr(dev->perm_addr)) {
- /*
- * Bad mac address. At least one bios sets the mac address
- * to 01:23:45:67:89:ab
- */
- printk(KERN_ERR "%s: Invalid Mac address detected: %02x:%02x:%02x:%02x:%02x:%02x\n",
- pci_name(pci_dev),
- dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
- dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
- printk(KERN_ERR "Please complain to your hardware vendor. Switching to a random MAC.\n");
- dev->dev_addr[0] = 0x00;
- dev->dev_addr[1] = 0x00;
- dev->dev_addr[2] = 0x6c;
- get_random_bytes(&dev->dev_addr[3], 3);
- }
-
- dprintk(KERN_DEBUG "%s: MAC Address %02x:%02x:%02x:%02x:%02x:%02x\n", pci_name(pci_dev),
- dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
- dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
-
- /* disable WOL */
- writel(0, base + NvRegWakeUpFlags);
- np->wolenabled = 0;
-
- if (np->desc_ver == DESC_VER_1) {
- np->tx_flags = NV_TX_VALID;
- } else {
- np->tx_flags = NV_TX2_VALID;
- }
- np->irqmask = NVREG_IRQMASK_WANTED;
- if (id->driver_data & DEV_NEED_TIMERIRQ)
- np->irqmask |= NVREG_IRQ_TIMER;
- if (id->driver_data & DEV_NEED_LINKTIMER) {
- dprintk(KERN_INFO "%s: link timer on.\n", pci_name(pci_dev));
- np->need_linktimer = 1;
- np->link_timeout = jiffies + LINK_TIMEOUT;
- } else {
- dprintk(KERN_INFO "%s: link timer off.\n", pci_name(pci_dev));
- np->need_linktimer = 0;
- }
-
- /* find a suitable phy */
- for (i = 1; i < 32; i++) {
- int id1, id2;
-
- spin_lock_irq(&np->lock);
- id1 = mii_rw(dev, i, MII_PHYSID1, MII_READ);
- spin_unlock_irq(&np->lock);
- if (id1 < 0 || id1 == 0xffff)
- continue;
- spin_lock_irq(&np->lock);
- id2 = mii_rw(dev, i, MII_PHYSID2, MII_READ);
- spin_unlock_irq(&np->lock);
- if (id2 < 0 || id2 == 0xffff)
- continue;
-
- id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
- id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
- dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n",
- pci_name(pci_dev), id1, id2, i);
- np->phyaddr = i;
- np->phy_oui = id1 | id2;
- break;
- }
- if (i == 32) {
- /* PHY in isolate mode? No phy attached and user wants to
- * test loopback? Very odd, but can be correct.
- */
- printk(KERN_INFO "%s: open: Could not find a valid PHY.\n",
- pci_name(pci_dev));
- }
-
- if (i != 32) {
- /* reset it */
- phy_init(dev);
- }
-
- /* set default link speed settings */
- np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
- np->duplex = 0;
- np->autoneg = 1;
-
- err = register_netdev(dev);
- if (err) {
- printk(KERN_INFO "forcedeth: unable to register netdev: %d\n", err);
- goto out_freering;
- }
- printk(KERN_INFO "%s: forcedeth.c: subsystem: %05x:%04x bound to %s\n",
- dev->name, pci_dev->subsystem_vendor, pci_dev->subsystem_device,
- pci_name(pci_dev));
-
- return 0;
-
-out_freering:
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (RX_RING + TX_RING),
- np->rx_ring.orig, np->ring_addr);
- else
- pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (RX_RING + TX_RING),
- np->rx_ring.ex, np->ring_addr);
- pci_set_drvdata(pci_dev, NULL);
-out_unmap:
- iounmap(get_hwbase(dev));
-out_relreg:
- pci_release_regions(pci_dev);
-out_disable:
- pci_disable_device(pci_dev);
-out_free:
- free_netdev(dev);
-out:
- return err;
-}
-
-static void __devexit nv_remove(struct pci_dev *pci_dev)
-{
- struct net_device *dev = pci_get_drvdata(pci_dev);
- struct fe_priv *np = netdev_priv(dev);
-
- unregister_netdev(dev);
-
- /* free all structures */
- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
- pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (RX_RING + TX_RING), np->rx_ring.orig, np->ring_addr);
- else
- pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (RX_RING + TX_RING), np->rx_ring.ex, np->ring_addr);
- iounmap(get_hwbase(dev));
- pci_release_regions(pci_dev);
- pci_disable_device(pci_dev);
- free_netdev(dev);
- pci_set_drvdata(pci_dev, NULL);
-}
-
-static struct pci_device_id pci_tbl[] = {
- { /* nForce Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_1),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
- },
- { /* nForce2 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_2),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
- },
- { /* nForce3 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_3),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
- },
- { /* nForce3 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
- },
- { /* nForce3 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
- },
- { /* nForce3 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
- },
- { /* nForce3 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
- },
- { /* CK804 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
- },
- { /* CK804 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
- },
- { /* MCP04 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
- },
- { /* MCP04 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
- },
- { /* MCP51 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA,
- },
- { /* MCP51 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA,
- },
- { /* MCP55 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
- },
- { /* MCP55 Ethernet Controller */
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
- },
- {0,},
-};
-
-static struct pci_driver driver = {
- .name = "forcedeth",
- .id_table = pci_tbl,
- .probe = nv_probe,
- .remove = __devexit_p(nv_remove),
-};
-
-
-static int __init init_nic(void)
-{
- printk(KERN_INFO "forcedeth.c: Reverse Engineered nForce ethernet driver. Version %s.\n", FORCEDETH_VERSION);
- return pci_module_init(&driver);
-}
-
-static void __exit exit_nic(void)
-{
- pci_unregister_driver(&driver);
-}
-
-module_param(max_interrupt_work, int, 0);
-MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
-
-MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
-MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
-MODULE_LICENSE("GPL");
-
-MODULE_DEVICE_TABLE(pci, pci_tbl);
-
-module_init(init_nic);
-module_exit(exit_nic);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 00:44:55 +0000