| /* |
| * 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) 2003,4,5 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. |
| * 0.45: 18 Sep 2005: Remove nv_stop/start_rx from every link check |
| * 0.46: 20 Oct 2005: Add irq optimization modes. |
| * 0.47: 26 Oct 2005: Add phyaddr 0 in phy scan. |
| * 0.48: 24 Dec 2005: Disable TSO, bugfix for pci_map_single |
| * 0.49: 10 Dec 2005: Fix tso for large buffers. |
| * 0.50: 20 Jan 2006: Add 8021pq tagging support. |
| * 0.51: 20 Jan 2006: Add 64bit consistent memory allocation for rings. |
| * 0.52: 20 Jan 2006: Add MSI/MSIX support. |
| * 0.53: 19 Mar 2006: Fix init from low power mode and add hw reset. |
| * 0.54: 21 Mar 2006: Fix spin locks for multi irqs and cleanup. |
| * 0.55: 22 Mar 2006: Add flow control (pause frame). |
| * 0.56: 22 Mar 2006: Additional ethtool config and moduleparam support. |
| * |
| * 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 "0.56" |
| #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 <linux/dma-mapping.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 */ |
| #define DEV_HAS_VLAN 0x0020 /* device supports vlan tagging and striping */ |
| #define DEV_HAS_MSI 0x0040 /* device supports MSI */ |
| #define DEV_HAS_MSI_X 0x0080 /* device supports MSI-X */ |
| #define DEV_HAS_POWER_CNTRL 0x0100 /* device supports power savings */ |
| #define DEV_HAS_PAUSEFRAME_TX 0x0200 /* device supports tx pause frames */ |
| #define DEV_HAS_STATISTICS 0x0400 /* device supports hw statistics */ |
| #define DEV_HAS_TEST_EXTENDED 0x0800 /* device supports extended diagnostic test */ |
| |
| 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_RX_FORCED 0x0080 |
| #define NVREG_IRQ_TX_FORCED 0x0100 |
| #define NVREG_IRQMASK_THROUGHPUT 0x00df |
| #define NVREG_IRQMASK_CPU 0x0040 |
| #define NVREG_IRQ_TX_ALL (NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED) |
| #define NVREG_IRQ_RX_ALL (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED) |
| #define NVREG_IRQ_OTHER (NVREG_IRQ_TIMER|NVREG_IRQ_LINK) |
| |
| #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_RX_FORCED| \ |
| NVREG_IRQ_TX_FORCED)) |
| |
| 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_THROUGHPUT 970 |
| #define NVREG_POLL_DEFAULT_CPU 13 |
| NvRegMSIMap0 = 0x020, |
| NvRegMSIMap1 = 0x024, |
| NvRegMSIIrqMask = 0x030, |
| #define NVREG_MSI_VECTOR_0_ENABLED 0x01 |
| NvRegMisc1 = 0x080, |
| #define NVREG_MISC1_PAUSE_TX 0x01 |
| #define NVREG_MISC1_HD 0x02 |
| #define NVREG_MISC1_FORCE 0x3b0f3c |
| |
| NvRegMacReset = 0x3c, |
| #define NVREG_MAC_RESET_ASSERT 0x0F3 |
| NvRegTransmitterControl = 0x084, |
| #define NVREG_XMITCTL_START 0x01 |
| NvRegTransmitterStatus = 0x088, |
| #define NVREG_XMITSTAT_BUSY 0x01 |
| |
| NvRegPacketFilterFlags = 0x8c, |
| #define NVREG_PFF_PAUSE_RX 0x08 |
| #define NVREG_PFF_ALWAYS 0x7F0000 |
| #define NVREG_PFF_PROMISC 0x80 |
| #define NVREG_PFF_MYADDR 0x20 |
| #define NVREG_PFF_LOOPBACK 0x10 |
| |
| 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 |
| |
| NvRegTxDeferral = 0xA0, |
| #define NVREG_TX_DEFERRAL_DEFAULT 0x15050f |
| #define NVREG_TX_DEFERRAL_RGMII_10_100 0x16070f |
| #define NVREG_TX_DEFERRAL_RGMII_1000 0x14050f |
| NvRegRxDeferral = 0xA4, |
| #define NVREG_RX_DEFERRAL_DEFAULT 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) |
| NvRegTxWatermark = 0x13c, |
| #define NVREG_TX_WM_DESC1_DEFAULT 0x0200010 |
| #define NVREG_TX_WM_DESC2_3_DEFAULT 0x1e08000 |
| #define NVREG_TX_WM_DESC2_3_1000 0xfe08000 |
| 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 |
| #define NVREG_TXRXCTL_VLANSTRIP 0x00040 |
| #define NVREG_TXRXCTL_VLANINS 0x00080 |
| NvRegTxRingPhysAddrHigh = 0x148, |
| NvRegRxRingPhysAddrHigh = 0x14C, |
| NvRegTxPauseFrame = 0x170, |
| #define NVREG_TX_PAUSEFRAME_DISABLE 0x1ff0080 |
| #define NVREG_TX_PAUSEFRAME_ENABLE 0x0c00030 |
| 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 |
| NvRegTxCnt = 0x280, |
| NvRegTxZeroReXmt = 0x284, |
| NvRegTxOneReXmt = 0x288, |
| NvRegTxManyReXmt = 0x28c, |
| NvRegTxLateCol = 0x290, |
| NvRegTxUnderflow = 0x294, |
| NvRegTxLossCarrier = 0x298, |
| NvRegTxExcessDef = 0x29c, |
| NvRegTxRetryErr = 0x2a0, |
| NvRegRxFrameErr = 0x2a4, |
| NvRegRxExtraByte = 0x2a8, |
| NvRegRxLateCol = 0x2ac, |
| NvRegRxRunt = 0x2b0, |
| NvRegRxFrameTooLong = 0x2b4, |
| NvRegRxOverflow = 0x2b8, |
| NvRegRxFCSErr = 0x2bc, |
| NvRegRxFrameAlignErr = 0x2c0, |
| NvRegRxLenErr = 0x2c4, |
| NvRegRxUnicast = 0x2c8, |
| NvRegRxMulticast = 0x2cc, |
| NvRegRxBroadcast = 0x2d0, |
| NvRegTxDef = 0x2d4, |
| NvRegTxFrame = 0x2d8, |
| NvRegRxCnt = 0x2dc, |
| NvRegTxPause = 0x2e0, |
| NvRegRxPause = 0x2e4, |
| NvRegRxDropFrame = 0x2e8, |
| NvRegVlanControl = 0x300, |
| #define NVREG_VLANCONTROL_ENABLE 0x2000 |
| NvRegMSIXMap0 = 0x3e0, |
| NvRegMSIXMap1 = 0x3e4, |
| NvRegMSIXIrqStatus = 0x3f0, |
| |
| NvRegPowerState2 = 0x600, |
| #define NVREG_POWERSTATE2_POWERUP_MASK 0x0F11 |
| #define NVREG_POWERSTATE2_POWERUP_REV_A3 0x0001 |
| }; |
| |
| /* Big endian: should work, but is untested */ |
| struct ring_desc { |
| u32 PacketBuffer; |
| u32 FlagLen; |
| }; |
| |
| struct ring_desc_ex { |
| u32 PacketBufferHigh; |
| u32 PacketBufferLow; |
| u32 TxVlan; |
| 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_TSO_MAX_SHIFT 14 |
| #define NV_TX2_TSO_MAX_SIZE (1<<NV_TX2_TSO_MAX_SHIFT) |
| #define NV_TX2_CHECKSUM_L3 (1<<27) |
| #define NV_TX2_CHECKSUM_L4 (1<<26) |
| |
| #define NV_TX3_VLAN_TAG_PRESENT (1<<18) |
| |
| #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) |
| |
| #define NV_RX3_VLAN_TAG_PRESENT (1<<16) |
| #define NV_RX3_VLAN_TAG_MASK (0x0000FFFF) |
| |
| /* Miscelaneous hardware related defines: */ |
| #define NV_PCI_REGSZ_VER1 0x270 |
| #define NV_PCI_REGSZ_VER2 0x604 |
| |
| /* 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_MAC_RESET_DELAY 64 |
| |
| #define NV_WAKEUPPATTERNS 5 |
| #define NV_WAKEUPMASKENTRIES 4 |
| |
| /* General driver defaults */ |
| #define NV_WATCHDOG_TIMEO (5*HZ) |
| |
| #define RX_RING_DEFAULT 128 |
| #define TX_RING_DEFAULT 256 |
| #define RX_RING_MIN 128 |
| #define TX_RING_MIN 64 |
| #define RING_MAX_DESC_VER_1 1024 |
| #define RING_MAX_DESC_VER_2_3 16384 |
| /* |
| * Difference between the get and put pointers for the tx ring. |
| * This is used to throttle the amount of data outstanding in the |
| * tx ring. |
| */ |
| #define TX_LIMIT_DIFFERENCE 1 |
| |
| /* 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) |
| #define STATS_INTERVAL (10*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 |
| |
| #define NV_PAUSEFRAME_RX_CAPABLE 0x0001 |
| #define NV_PAUSEFRAME_TX_CAPABLE 0x0002 |
| #define NV_PAUSEFRAME_RX_ENABLE 0x0004 |
| #define NV_PAUSEFRAME_TX_ENABLE 0x0008 |
| #define NV_PAUSEFRAME_RX_REQ 0x0010 |
| #define NV_PAUSEFRAME_TX_REQ 0x0020 |
| #define NV_PAUSEFRAME_AUTONEG 0x0040 |
| |
| /* MSI/MSI-X defines */ |
| #define NV_MSI_X_MAX_VECTORS 8 |
| #define NV_MSI_X_VECTORS_MASK 0x000f |
| #define NV_MSI_CAPABLE 0x0010 |
| #define NV_MSI_X_CAPABLE 0x0020 |
| #define NV_MSI_ENABLED 0x0040 |
| #define NV_MSI_X_ENABLED 0x0080 |
| |
| #define NV_MSI_X_VECTOR_ALL 0x0 |
| #define NV_MSI_X_VECTOR_RX 0x0 |
| #define NV_MSI_X_VECTOR_TX 0x1 |
| #define NV_MSI_X_VECTOR_OTHER 0x2 |
| |
| /* statistics */ |
| struct nv_ethtool_str { |
| char name[ETH_GSTRING_LEN]; |
| }; |
| |
| static const struct nv_ethtool_str nv_estats_str[] = { |
| { "tx_bytes" }, |
| { "tx_zero_rexmt" }, |
| { "tx_one_rexmt" }, |
| { "tx_many_rexmt" }, |
| { "tx_late_collision" }, |
| { "tx_fifo_errors" }, |
| { "tx_carrier_errors" }, |
| { "tx_excess_deferral" }, |
| { "tx_retry_error" }, |
| { "tx_deferral" }, |
| { "tx_packets" }, |
| { "tx_pause" }, |
| { "rx_frame_error" }, |
| { "rx_extra_byte" }, |
| { "rx_late_collision" }, |
| { "rx_runt" }, |
| { "rx_frame_too_long" }, |
| { "rx_over_errors" }, |
| { "rx_crc_errors" }, |
| { "rx_frame_align_error" }, |
| { "rx_length_error" }, |
| { "rx_unicast" }, |
| { "rx_multicast" }, |
| { "rx_broadcast" }, |
| { "rx_bytes" }, |
| { "rx_pause" }, |
| { "rx_drop_frame" }, |
| { "rx_packets" }, |
| { "rx_errors_total" } |
| }; |
| |
| struct nv_ethtool_stats { |
| u64 tx_bytes; |
| u64 tx_zero_rexmt; |
| u64 tx_one_rexmt; |
| u64 tx_many_rexmt; |
| u64 tx_late_collision; |
| u64 tx_fifo_errors; |
| u64 tx_carrier_errors; |
| u64 tx_excess_deferral; |
| u64 tx_retry_error; |
| u64 tx_deferral; |
| u64 tx_packets; |
| u64 tx_pause; |
| u64 rx_frame_error; |
| u64 rx_extra_byte; |
| u64 rx_late_collision; |
| u64 rx_runt; |
| u64 rx_frame_too_long; |
| u64 rx_over_errors; |
| u64 rx_crc_errors; |
| u64 rx_frame_align_error; |
| u64 rx_length_error; |
| u64 rx_unicast; |
| u64 rx_multicast; |
| u64 rx_broadcast; |
| u64 rx_bytes; |
| u64 rx_pause; |
| u64 rx_drop_frame; |
| u64 rx_packets; |
| u64 rx_errors_total; |
| }; |
| |
| /* diagnostics */ |
| #define NV_TEST_COUNT_BASE 3 |
| #define NV_TEST_COUNT_EXTENDED 4 |
| |
| static const struct nv_ethtool_str nv_etests_str[] = { |
| { "link (online/offline)" }, |
| { "register (offline) " }, |
| { "interrupt (offline) " }, |
| { "loopback (offline) " } |
| }; |
| |
| struct register_test { |
| u32 reg; |
| u32 mask; |
| }; |
| |
| static const struct register_test nv_registers_test[] = { |
| { NvRegUnknownSetupReg6, 0x01 }, |
| { NvRegMisc1, 0x03c }, |
| { NvRegOffloadConfig, 0x03ff }, |
| { NvRegMulticastAddrA, 0xffffffff }, |
| { NvRegTxWatermark, 0x0ff }, |
| { NvRegWakeUpFlags, 0x07777 }, |
| { 0,0 } |
| }; |
| |
| /* |
| * 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 netif_tx_lock. Actual submission |
| * needs dev->priv->lock :-( |
| * - set_multicast_list: preparation lockless, relies on netif_tx_lock. |
| */ |
| |
| /* in dev: base, irq */ |
| struct fe_priv { |
| spinlock_t lock; |
| |
| /* General data: |
| * Locking: spin_lock(&np->lock); */ |
| struct net_device_stats stats; |
| struct nv_ethtool_stats estats; |
| int in_shutdown; |
| u32 linkspeed; |
| int duplex; |
| int autoneg; |
| int fixed_mode; |
| int phyaddr; |
| int wolenabled; |
| unsigned int phy_oui; |
| u16 gigabit; |
| int intr_test; |
| |
| /* 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; |
| u32 vlanctl_bits; |
| u32 driver_data; |
| u32 register_size; |
| |
| 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; |
| dma_addr_t *rx_dma; |
| unsigned int rx_buf_sz; |
| unsigned int pkt_limit; |
| struct timer_list oom_kick; |
| struct timer_list nic_poll; |
| struct timer_list stats_poll; |
| u32 nic_poll_irq; |
| int rx_ring_size; |
| |
| /* 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; |
| dma_addr_t *tx_dma; |
| unsigned int *tx_dma_len; |
| u32 tx_flags; |
| int tx_ring_size; |
| int tx_limit_start; |
| int tx_limit_stop; |
| |
| /* vlan fields */ |
| struct vlan_group *vlangrp; |
| |
| /* msi/msi-x fields */ |
| u32 msi_flags; |
| struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS]; |
| |
| /* flow control */ |
| u32 pause_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; |
| |
| /* |
| * Optimization can be either throuput mode or cpu mode |
| * |
| * Throughput Mode: Every tx and rx packet will generate an interrupt. |
| * CPU Mode: Interrupts are controlled by a timer. |
| */ |
| enum { |
| NV_OPTIMIZATION_MODE_THROUGHPUT, |
| NV_OPTIMIZATION_MODE_CPU |
| }; |
| static int optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT; |
| |
| /* |
| * Poll interval for timer irq |
| * |
| * This interval determines how frequent an interrupt is generated. |
| * The is value is determined by [(time_in_micro_secs * 100) / (2^10)] |
| * Min = 0, and Max = 65535 |
| */ |
| static int poll_interval = -1; |
| |
| /* |
| * MSI interrupts |
| */ |
| enum { |
| NV_MSI_INT_DISABLED, |
| NV_MSI_INT_ENABLED |
| }; |
| static int msi = NV_MSI_INT_ENABLED; |
| |
| /* |
| * MSIX interrupts |
| */ |
| enum { |
| NV_MSIX_INT_DISABLED, |
| NV_MSIX_INT_ENABLED |
| }; |
| static int msix = NV_MSIX_INT_ENABLED; |
| |
| /* |
| * DMA 64bit |
| */ |
| enum { |
| NV_DMA_64BIT_DISABLED, |
| NV_DMA_64BIT_ENABLED |
| }; |
| static int dma_64bit = NV_DMA_64BIT_ENABLED; |
| |
| 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 NV_SETUP_RX_RING 0x01 |
| #define NV_SETUP_TX_RING 0x02 |
| |
| static void setup_hw_rings(struct net_device *dev, int rxtx_flags) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| if (rxtx_flags & NV_SETUP_RX_RING) { |
| writel((u32) cpu_to_le64(np->ring_addr), base + NvRegRxRingPhysAddr); |
| } |
| if (rxtx_flags & NV_SETUP_TX_RING) { |
| writel((u32) cpu_to_le64(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr); |
| } |
| } else { |
| if (rxtx_flags & NV_SETUP_RX_RING) { |
| writel((u32) cpu_to_le64(np->ring_addr), base + NvRegRxRingPhysAddr); |
| writel((u32) (cpu_to_le64(np->ring_addr) >> 32), base + NvRegRxRingPhysAddrHigh); |
| } |
| if (rxtx_flags & NV_SETUP_TX_RING) { |
| writel((u32) cpu_to_le64(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr); |
| writel((u32) (cpu_to_le64(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)) >> 32), base + NvRegTxRingPhysAddrHigh); |
| } |
| } |
| } |
| |
| static void free_rings(struct net_device *dev) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| if(np->rx_ring.orig) |
| pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size), |
| np->rx_ring.orig, np->ring_addr); |
| } else { |
| if (np->rx_ring.ex) |
| pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size), |
| np->rx_ring.ex, np->ring_addr); |
| } |
| if (np->rx_skbuff) |
| kfree(np->rx_skbuff); |
| if (np->rx_dma) |
| kfree(np->rx_dma); |
| if (np->tx_skbuff) |
| kfree(np->tx_skbuff); |
| if (np->tx_dma) |
| kfree(np->tx_dma); |
| if (np->tx_dma_len) |
| kfree(np->tx_dma_len); |
| } |
| |
| static int using_multi_irqs(struct net_device *dev) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| |
| if (!(np->msi_flags & NV_MSI_X_ENABLED) || |
| ((np->msi_flags & NV_MSI_X_ENABLED) && |
| ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1))) |
| return 0; |
| else |
| return 1; |
| } |
| |
| static void nv_enable_irq(struct net_device *dev) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| |
| if (!using_multi_irqs(dev)) { |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
| else |
| enable_irq(dev->irq); |
| } else { |
| enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
| enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
| enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
| } |
| } |
| |
| static void nv_disable_irq(struct net_device *dev) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| |
| if (!using_multi_irqs(dev)) { |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
| else |
| disable_irq(dev->irq); |
| } else { |
| disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
| disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
| disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
| } |
| } |
| |
| /* In MSIX mode, a write to irqmask behaves as XOR */ |
| static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask) |
| { |
| u8 __iomem *base = get_hwbase(dev); |
| |
| writel(mask, base + NvRegIrqMask); |
| } |
| |
| static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| |
| if (np->msi_flags & NV_MSI_X_ENABLED) { |
| writel(mask, base + NvRegIrqMask); |
| } else { |
| if (np->msi_flags & NV_MSI_ENABLED) |
| writel(0, base + NvRegMSIIrqMask); |
| writel(0, base + NvRegIrqMask); |
| } |
| } |
| |
| #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|ADVERTISE_PAUSE_ASYM|ADVERTISE_PAUSE_CAP); |
| 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_CTRL1000, 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_CTRL1000, 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; |
| } |
| } |
| /* some phys clear out pause advertisment on reset, set it back */ |
| mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg); |
| |
| /* 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); |
| } |
| |
| static void nv_mac_reset(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| |
| dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name); |
| writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); |
| pci_push(base); |
| writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset); |
| pci_push(base); |
| udelay(NV_MAC_RESET_DELAY); |
| writel(0, base + NvRegMacReset); |
| pci_push(base); |
| udelay(NV_MAC_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 % np->rx_ring_size; |
| 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->end-skb->data, 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 == np->rx_ring_size) |
| 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); |
| |
| if (!using_multi_irqs(dev)) { |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
| else |
| disable_irq(dev->irq); |
| } else { |
| disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
| } |
| if (nv_alloc_rx(dev)) { |
| spin_lock_irq(&np->lock); |
| if (!np->in_shutdown) |
| mod_timer(&np->oom_kick, jiffies + OOM_REFILL); |
| spin_unlock_irq(&np->lock); |
| } |
| if (!using_multi_irqs(dev)) { |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
| else |
| enable_irq(dev->irq); |
| } else { |
| enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
| } |
| } |
| |
| static void nv_init_rx(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| int i; |
| |
| np->cur_rx = np->rx_ring_size; |
| np->refill_rx = 0; |
| for (i = 0; i < np->rx_ring_size; 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 < np->tx_ring_size; 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; |
| np->tx_dma[i] = 0; |
| } |
| } |
| |
| static int nv_init_ring(struct net_device *dev) |
| { |
| nv_init_tx(dev); |
| nv_init_rx(dev); |
| return nv_alloc_rx(dev); |
| } |
| |
| static int nv_release_txskb(struct net_device *dev, unsigned int skbnr) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| dprintk(KERN_INFO "%s: nv_release_txskb for skbnr %d\n", |
| dev->name, skbnr); |
| |
| if (np->tx_dma[skbnr]) { |
| pci_unmap_page(np->pci_dev, np->tx_dma[skbnr], |
| np->tx_dma_len[skbnr], |
| PCI_DMA_TODEVICE); |
| np->tx_dma[skbnr] = 0; |
| } |
| |
| if (np->tx_skbuff[skbnr]) { |
| dev_kfree_skb_any(np->tx_skbuff[skbnr]); |
| np->tx_skbuff[skbnr] = NULL; |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| static void nv_drain_tx(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| unsigned int i; |
| |
| for (i = 0; i < np->tx_ring_size; 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 (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 < np->rx_ring_size; 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]->end-np->rx_skbuff[i]->data, |
| 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 netif_tx_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 = 0; |
| 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 - 1) % np->tx_ring_size; |
| unsigned int start_nr = np->next_tx % np->tx_ring_size; |
| unsigned int i; |
| u32 offset = 0; |
| u32 bcnt; |
| u32 size = skb->len-skb->data_len; |
| u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); |
| u32 tx_flags_vlan = 0; |
| |
| /* add fragments to entries count */ |
| for (i = 0; i < fragments; i++) { |
| entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) + |
| ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); |
| } |
| |
| spin_lock_irq(&np->lock); |
| |
| if ((np->next_tx - np->nic_tx + entries - 1) > np->tx_limit_stop) { |
| spin_unlock_irq(&np->lock); |
| netif_stop_queue(dev); |
| return NETDEV_TX_BUSY; |
| } |
| |
| /* setup the header buffer */ |
| do { |
| bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; |
| nr = (nr + 1) % np->tx_ring_size; |
| |
| np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data + offset, bcnt, |
| PCI_DMA_TODEVICE); |
| np->tx_dma_len[nr] = bcnt; |
| |
| 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((bcnt-1) | tx_flags); |
| } 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((bcnt-1) | tx_flags); |
| } |
| tx_flags = np->tx_flags; |
| offset += bcnt; |
| size -= bcnt; |
| } while(size); |
| |
| /* setup the fragments */ |
| for (i = 0; i < fragments; i++) { |
| skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| u32 size = frag->size; |
| offset = 0; |
| |
| do { |
| bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; |
| nr = (nr + 1) % np->tx_ring_size; |
| |
| np->tx_dma[nr] = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt, |
| PCI_DMA_TODEVICE); |
| np->tx_dma_len[nr] = bcnt; |
| |
| 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((bcnt-1) | tx_flags); |
| } 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((bcnt-1) | tx_flags); |
| } |
| offset += bcnt; |
| size -= bcnt; |
| } while (size); |
| } |
| |
| /* set last fragment flag */ |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| np->tx_ring.orig[nr].FlagLen |= cpu_to_le32(tx_flags_extra); |
| } else { |
| np->tx_ring.ex[nr].FlagLen |= cpu_to_le32(tx_flags_extra); |
| } |
| |
| np->tx_skbuff[nr] = skb; |
| |
| #ifdef NETIF_F_TSO |
| if (skb_is_gso(skb)) |
| tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT); |
| else |
| #endif |
| tx_flags_extra = (skb->ip_summed == CHECKSUM_HW ? (NV_TX2_CHECKSUM_L3|NV_TX2_CHECKSUM_L4) : 0); |
| |
| /* vlan tag */ |
| if (np->vlangrp && vlan_tx_tag_present(skb)) { |
| tx_flags_vlan = NV_TX3_VLAN_TAG_PRESENT | vlan_tx_tag_get(skb); |
| } |
| |
| /* set tx flags */ |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| np->tx_ring.orig[start_nr].FlagLen |= cpu_to_le32(tx_flags | tx_flags_extra); |
| } else { |
| np->tx_ring.ex[start_nr].TxVlan = cpu_to_le32(tx_flags_vlan); |
| np->tx_ring.ex[start_nr].FlagLen |= cpu_to_le32(tx_flags | tx_flags_extra); |
| } |
| |
| dprintk(KERN_DEBUG "%s: nv_start_xmit: packet %d (entries %d) queued for transmission. tx_flags_extra: %x\n", |
| dev->name, np->next_tx, entries, 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 += entries; |
| |
| 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 % np->tx_ring_size; |
| |
| 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; |
| } |
| } |
| } 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 < np->tx_limit_start) |
| netif_wake_queue(dev); |
| } |
| |
| /* |
| * nv_tx_timeout: dev->tx_timeout function |
| * Called with netif_tx_lock held. |
| */ |
| static void nv_tx_timeout(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| u32 status; |
| |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; |
| else |
| status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; |
| |
| printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, status); |
| |
| { |
| 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<=np->register_size;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<np->tx_ring_size;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; |
| setup_hw_rings(dev, NV_SETUP_TX_RING); |
| 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; |
| u32 vlanflags = 0; |
| |
| for (;;) { |
| struct sk_buff *skb; |
| int len; |
| int i; |
| if (np->cur_rx - np->refill_rx >= np->rx_ring_size) |
| break; /* we scanned the whole ring - do not continue */ |
| |
| i = np->cur_rx % np->rx_ring_size; |
| 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); |
| vlanflags = le32_to_cpu(np->rx_ring.ex[i].PacketBufferLow); |
| } |
| |
| 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]->end-np->rx_skbuff[i]->data, |
| 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_ERROR) { |
| 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_ERROR) { |
| 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--; |
| } |
| } |
| } |
| if (np->txrxctl_bits & NVREG_TXRXCTL_RXCHECK) { |
| 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); |
| if (np->vlangrp && (vlanflags & NV_RX3_VLAN_TAG_PRESENT)) { |
| vlan_hwaccel_rx(skb, np->vlangrp, vlanflags & NV_RX3_VLAN_TAG_MASK); |
| } else { |
| 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. |
| */ |
| nv_disable_irq(dev); |
| netif_tx_lock_bh(dev); |
| 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 */ |
| set_bufsize(dev); |
| if (nv_init_ring(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); |
| setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
| writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-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); |
| netif_tx_unlock_bh(dev); |
| nv_enable_irq(dev); |
| } |
| 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)) { |
| netif_tx_lock_bh(dev); |
| 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); |
| netif_tx_unlock_bh(dev); |
| } else { |
| nv_copy_mac_to_hw(dev); |
| } |
| return 0; |
| } |
| |
| /* |
| * nv_set_multicast: dev->set_multicast function |
| * Called with netif_tx_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 = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX; |
| |
| 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 void nv_update_pause(struct net_device *dev, u32 pause_flags) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| |
| np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE); |
| |
| if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) { |
| u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX; |
| if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) { |
| writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags); |
| np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
| } else { |
| writel(pff, base + NvRegPacketFilterFlags); |
| } |
| } |
| if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) { |
| u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX; |
| if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) { |
| writel(NVREG_TX_PAUSEFRAME_ENABLE, base + NvRegTxPauseFrame); |
| writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1); |
| np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
| } else { |
| writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame); |
| writel(regmisc, base + NvRegMisc1); |
| } |
| } |
| } |
| |
| /** |
| * nv_update_linkspeed: Setup the MAC according to the link partner |
| * @dev: Network device to be configured |
| * |
| * The function queries the PHY and checks if there is a link partner. |
| * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is |
| * set to 10 MBit HD. |
| * |
| * The function returns 0 if there is no link partner and 1 if there is |
| * a good link partner. |
| */ |
| static int nv_update_linkspeed(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| int adv = 0; |
| int lpa = 0; |
| int adv_lpa, adv_pause, lpa_pause; |
| int newls = np->linkspeed; |
| int newdup = np->duplex; |
| int mii_status; |
| int retval = 0; |
| u32 control_1000, status_1000, phyreg, pause_flags, txreg; |
| |
| /* 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; |
| } |
| |
| 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); |
| |
| retval = 1; |
| if (np->gigabit == PHY_GIGABIT) { |
| control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
| status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, 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; |
| } |
| } |
| |
| /* FIXME: handle parallel detection properly */ |
| adv_lpa = lpa & adv; |
| if (adv_lpa & LPA_100FULL) { |
| newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; |
| newdup = 1; |
| } else if (adv_lpa & LPA_100HALF) { |
| newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; |
| newdup = 0; |
| } else if (adv_lpa & LPA_10FULL) { |
| newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
| newdup = 1; |
| } else if (adv_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, adv_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); |
| |
| if (phyreg & PHY_RGMII) { |
| if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) |
| txreg = NVREG_TX_DEFERRAL_RGMII_1000; |
| else |
| txreg = NVREG_TX_DEFERRAL_RGMII_10_100; |
| } else { |
| txreg = NVREG_TX_DEFERRAL_DEFAULT; |
| } |
| writel(txreg, base + NvRegTxDeferral); |
| |
| if (np->desc_ver == DESC_VER_1) { |
| txreg = NVREG_TX_WM_DESC1_DEFAULT; |
| } else { |
| if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) |
| txreg = NVREG_TX_WM_DESC2_3_1000; |
| else |
| txreg = NVREG_TX_WM_DESC2_3_DEFAULT; |
| } |
| writel(txreg, base + NvRegTxWatermark); |
| |
| writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD), |
| base + NvRegMisc1); |
| pci_push(base); |
| writel(np->linkspeed, base + NvRegLinkSpeed); |
| pci_push(base); |
| |
| pause_flags = 0; |
| /* setup pause frame */ |
| if (np->duplex != 0) { |
| if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) { |
| adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM); |
| lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM); |
| |
| switch (adv_pause) { |
| case (ADVERTISE_PAUSE_CAP): |
| if (lpa_pause & LPA_PAUSE_CAP) { |
| pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
| if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) |
| pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
| } |
| break; |
| case (ADVERTISE_PAUSE_ASYM): |
| if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM)) |
| { |
| pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
| } |
| break; |
| case (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM): |
| if (lpa_pause & LPA_PAUSE_CAP) |
| { |
| pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
| if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) |
| pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
| } |
| if (lpa_pause == LPA_PAUSE_ASYM) |
| { |
| pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
| } |
| break; |
| } |
| } else { |
| pause_flags = np->pause_flags; |
| } |
| } |
| nv_update_pause(dev, pause_flags); |
| |
| return retval; |
| } |
| |
| static void nv_linkchange(struct net_device *dev) |
| { |
| if (nv_update_linkspeed(dev)) { |
| if (!netif_carrier_ok(dev)) { |
| 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++) { |
| if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
| events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; |
| writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
| } else { |
| events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; |
| writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); |
| } |
| pci_push(base); |
| dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events); |
| if (!(events & np->irqmask)) |
| break; |
| |
| spin_lock(&np->lock); |
| nv_tx_done(dev); |
| spin_unlock(&np->lock); |
| |
| 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 */ |
| if (!(np->msi_flags & NV_MSI_X_ENABLED)) |
| writel(0, base + NvRegIrqMask); |
| else |
| writel(np->irqmask, base + NvRegIrqMask); |
| pci_push(base); |
| |
| if (!np->in_shutdown) { |
| np->nic_poll_irq = np->irqmask; |
| 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 irqreturn_t nv_nic_irq_tx(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_tx\n", dev->name); |
| |
| for (i=0; ; i++) { |
| events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL; |
| writel(NVREG_IRQ_TX_ALL, base + NvRegMSIXIrqStatus); |
| pci_push(base); |
| dprintk(KERN_DEBUG "%s: tx irq: %08x\n", dev->name, events); |
| if (!(events & np->irqmask)) |
| break; |
| |
| spin_lock_irq(&np->lock); |
| nv_tx_done(dev); |
| spin_unlock_irq(&np->lock); |
| |
| if (events & (NVREG_IRQ_TX_ERR)) { |
| dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n", |
| dev->name, events); |
| } |
| if (i > max_interrupt_work) { |
| spin_lock_irq(&np->lock); |
| /* disable interrupts on the nic */ |
| writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask); |
| pci_push(base); |
| |
| if (!np->in_shutdown) { |
| np->nic_poll_irq |= NVREG_IRQ_TX_ALL; |
| mod_timer(&np->nic_poll, jiffies + POLL_WAIT); |
| } |
| printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_tx.\n", dev->name, i); |
| spin_unlock_irq(&np->lock); |
| break; |
| } |
| |
| } |
| dprintk(KERN_DEBUG "%s: nv_nic_irq_tx completed\n", dev->name); |
| |
| return IRQ_RETVAL(i); |
| } |
| |
| static irqreturn_t nv_nic_irq_rx(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_rx\n", dev->name); |
| |
| for (i=0; ; i++) { |
| events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL; |
| writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus); |
| pci_push(base); |
| dprintk(KERN_DEBUG "%s: rx irq: %08x\n", dev->name, events); |
| if (!(events & np->irqmask)) |
| break; |
| |
| nv_rx_process(dev); |
| if (nv_alloc_rx(dev)) { |
| spin_lock_irq(&np->lock); |
| if (!np->in_shutdown) |
| mod_timer(&np->oom_kick, jiffies + OOM_REFILL); |
| spin_unlock_irq(&np->lock); |
| } |
| |
| if (i > max_interrupt_work) { |
| spin_lock_irq(&np->lock); |
| /* disable interrupts on the nic */ |
| writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask); |
| pci_push(base); |
| |
| if (!np->in_shutdown) { |
| np->nic_poll_irq |= NVREG_IRQ_RX_ALL; |
| mod_timer(&np->nic_poll, jiffies + POLL_WAIT); |
| } |
| printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_rx.\n", dev->name, i); |
| spin_unlock_irq(&np->lock); |
| break; |
| } |
| |
| } |
| dprintk(KERN_DEBUG "%s: nv_nic_irq_rx completed\n", dev->name); |
| |
| return IRQ_RETVAL(i); |
| } |
| |
| static irqreturn_t nv_nic_irq_other(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_other\n", dev->name); |
| |
| for (i=0; ; i++) { |
| events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER; |
| writel(NVREG_IRQ_OTHER, base + NvRegMSIXIrqStatus); |
| pci_push(base); |
| dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events); |
| if (!(events & np->irqmask)) |
| break; |
| |
| if (events & NVREG_IRQ_LINK) { |
| spin_lock_irq(&np->lock); |
| nv_link_irq(dev); |
| spin_unlock_irq(&np->lock); |
| } |
| if (np->need_linktimer && time_after(jiffies, np->link_timeout)) { |
| spin_lock_irq(&np->lock); |
| nv_linkchange(dev); |
| spin_unlock_irq(&np->lock); |
| np->link_timeout = jiffies + LINK_TIMEOUT; |
| } |
| 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_irq(&np->lock); |
| /* disable interrupts on the nic */ |
| writel(NVREG_IRQ_OTHER, base + NvRegIrqMask); |
| pci_push(base); |
| |
| if (!np->in_shutdown) { |
| np->nic_poll_irq |= NVREG_IRQ_OTHER; |
| mod_timer(&np->nic_poll, jiffies + POLL_WAIT); |
| } |
| printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_other.\n", dev->name, i); |
| spin_unlock_irq(&np->lock); |
| break; |
| } |
| |
| } |
| dprintk(KERN_DEBUG "%s: nv_nic_irq_other completed\n", dev->name); |
| |
| return IRQ_RETVAL(i); |
| } |
| |
| static irqreturn_t nv_nic_irq_test(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; |
| |
| dprintk(KERN_DEBUG "%s: nv_nic_irq_test\n", dev->name); |
| |
| if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
| events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; |
| writel(NVREG_IRQ_TIMER, base + NvRegIrqStatus); |
| } else { |
| events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; |
| writel(NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus); |
| } |
| pci_push(base); |
| dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events); |
| if (!(events & NVREG_IRQ_TIMER)) |
| return IRQ_RETVAL(0); |
| |
| spin_lock(&np->lock); |
| np->intr_test = 1; |
| spin_unlock(&np->lock); |
| |
| dprintk(KERN_DEBUG "%s: nv_nic_irq_test completed\n", dev->name); |
| |
| return IRQ_RETVAL(1); |
| } |
| |
| static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask) |
| { |
| u8 __iomem *base = get_hwbase(dev); |
| int i; |
| u32 msixmap = 0; |
| |
| /* Each interrupt bit can be mapped to a MSIX vector (4 bits). |
| * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents |
| * the remaining 8 interrupts. |
| */ |
| for (i = 0; i < 8; i++) { |
| if ((irqmask >> i) & 0x1) { |
| msixmap |= vector << (i << 2); |
| } |
| } |
| writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0); |
| |
| msixmap = 0; |
| for (i = 0; i < 8; i++) { |
| if ((irqmask >> (i + 8)) & 0x1) { |
| msixmap |= vector << (i << 2); |
| } |
| } |
| writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1); |
| } |
| |
| static int nv_request_irq(struct net_device *dev, int intr_test) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| int ret = 1; |
| int i; |
| |
| if (np->msi_flags & NV_MSI_X_CAPABLE) { |
| for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) { |
| np->msi_x_entry[i].entry = i; |
| } |
| if ((ret = pci_enable_msix(np->pci_dev, np->msi_x_entry, (np->msi_flags & NV_MSI_X_VECTORS_MASK))) == 0) { |
| np->msi_flags |= NV_MSI_X_ENABLED; |
| if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) { |
| /* Request irq for rx handling */ |
| if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, &nv_nic_irq_rx, IRQF_SHARED, dev->name, dev) != 0) { |
| printk(KERN_INFO "forcedeth: request_irq failed for rx %d\n", ret); |
| pci_disable_msix(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_X_ENABLED; |
| goto out_err; |
| } |
| /* Request irq for tx handling */ |
| if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, &nv_nic_irq_tx, IRQF_SHARED, dev->name, dev) != 0) { |
| printk(KERN_INFO "forcedeth: request_irq failed for tx %d\n", ret); |
| pci_disable_msix(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_X_ENABLED; |
| goto out_free_rx; |
| } |
| /* Request irq for link and timer handling */ |
| if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector, &nv_nic_irq_other, IRQF_SHARED, dev->name, dev) != 0) { |
| printk(KERN_INFO "forcedeth: request_irq failed for link %d\n", ret); |
| pci_disable_msix(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_X_ENABLED; |
| goto out_free_tx; |
| } |
| /* map interrupts to their respective vector */ |
| writel(0, base + NvRegMSIXMap0); |
| writel(0, base + NvRegMSIXMap1); |
| set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL); |
| set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL); |
| set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER); |
| } else { |
| /* Request irq for all interrupts */ |
| if ((!intr_test && |
| request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, &nv_nic_irq, IRQF_SHARED, dev->name, dev) != 0) || |
| (intr_test && |
| request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, &nv_nic_irq_test, IRQF_SHARED, dev->name, dev) != 0)) { |
| printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret); |
| pci_disable_msix(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_X_ENABLED; |
| goto out_err; |
| } |
| |
| /* map interrupts to vector 0 */ |
| writel(0, base + NvRegMSIXMap0); |
| writel(0, base + NvRegMSIXMap1); |
| } |
| } |
| } |
| if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) { |
| if ((ret = pci_enable_msi(np->pci_dev)) == 0) { |
| np->msi_flags |= NV_MSI_ENABLED; |
| if ((!intr_test && request_irq(np->pci_dev->irq, &nv_nic_irq, IRQF_SHARED, dev->name, dev) != 0) || |
| (intr_test && request_irq(np->pci_dev->irq, &nv_nic_irq_test, IRQF_SHARED, dev->name, dev) != 0)) { |
| printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret); |
| pci_disable_msi(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_ENABLED; |
| goto out_err; |
| } |
| |
| /* map interrupts to vector 0 */ |
| writel(0, base + NvRegMSIMap0); |
| writel(0, base + NvRegMSIMap1); |
| /* enable msi vector 0 */ |
| writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask); |
| } |
| } |
| if (ret != 0) { |
| if ((!intr_test && request_irq(np->pci_dev->irq, &nv_nic_irq, IRQF_SHARED, dev->name, dev) != 0) || |
| (intr_test && request_irq(np->pci_dev->irq, &nv_nic_irq_test, IRQF_SHARED, dev->name, dev) != 0)) |
| goto out_err; |
| |
| } |
| |
| return 0; |
| out_free_tx: |
| free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev); |
| out_free_rx: |
| free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev); |
| out_err: |
| return 1; |
| } |
| |
| static void nv_free_irq(struct net_device *dev) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| int i; |
| |
| if (np->msi_flags & NV_MSI_X_ENABLED) { |
| for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) { |
| free_irq(np->msi_x_entry[i].vector, dev); |
| } |
| pci_disable_msix(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_X_ENABLED; |
| } else { |
| free_irq(np->pci_dev->irq, dev); |
| if (np->msi_flags & NV_MSI_ENABLED) { |
| pci_disable_msi(np->pci_dev); |
| np->msi_flags &= ~NV_MSI_ENABLED; |
| } |
| } |
| } |
| |
| 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); |
| u32 mask = 0; |
| |
| /* |
| * First disable irq(s) and then |
| * reenable interrupts on the nic, we have to do this before calling |
| * nv_nic_irq because that may decide to do otherwise |
| */ |
| |
| if (!using_multi_irqs(dev)) { |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
| else |
| disable_irq_lockdep(dev->irq); |
| mask = np->irqmask; |
| } else { |
| if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) { |
| disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
| mask |= NVREG_IRQ_RX_ALL; |
| } |
| if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) { |
| disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
| mask |= NVREG_IRQ_TX_ALL; |
| } |
| if (np->nic_poll_irq & NVREG_IRQ_OTHER) { |
| disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
| mask |= NVREG_IRQ_OTHER; |
| } |
| } |
| np->nic_poll_irq = 0; |
| |
| /* FIXME: Do we need synchronize_irq(dev->irq) here? */ |
| |
| writel(mask, base + NvRegIrqMask); |
| pci_push(base); |
| |
| if (!using_multi_irqs(dev)) { |
| nv_nic_irq(0, dev, NULL); |
| if (np->msi_flags & NV_MSI_X_ENABLED) |
| enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
| else |
| enable_irq_lockdep(dev->irq); |
| } else { |
| if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) { |
| nv_nic_irq_rx(0, dev, NULL); |
| enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
| } |
| if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) { |
| nv_nic_irq_tx(0, dev, NULL); |
| enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
| } |
| if (np->nic_poll_irq & NVREG_IRQ_OTHER) { |
| nv_nic_irq_other(0, dev, NULL); |
| enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
| } |
| } |
| } |
| |
| #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_do_stats_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); |
| |
| np->estats.tx_bytes += readl(base + NvRegTxCnt); |
| np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt); |
| np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt); |
| np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt); |
| np->estats.tx_late_collision += readl(base + NvRegTxLateCol); |
| np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow); |
| np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier); |
| np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef); |
| np->estats.tx_retry_error += readl(base + NvRegTxRetryErr); |
| np->estats.tx_deferral += readl(base + NvRegTxDef); |
| np->estats.tx_packets += readl(base + NvRegTxFrame); |
| np->estats.tx_pause += readl(base + NvRegTxPause); |
| np->estats.rx_frame_error += readl(base + NvRegRxFrameErr); |
| np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte); |
| np->estats.rx_late_collision += readl(base + NvRegRxLateCol); |
| np->estats.rx_runt += readl(base + NvRegRxRunt); |
| np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong); |
| np->estats.rx_over_errors += readl(base + NvRegRxOverflow); |
| np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr); |
| np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr); |
| np->estats.rx_length_error += readl(base + NvRegRxLenErr); |
| np->estats.rx_unicast += readl(base + NvRegRxUnicast); |
| np->estats.rx_multicast += readl(base + NvRegRxMulticast); |
| np->estats.rx_broadcast += readl(base + NvRegRxBroadcast); |
| np->estats.rx_bytes += readl(base + NvRegRxCnt); |
| np->estats.rx_pause += readl(base + NvRegRxPause); |
| np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame); |
| np->estats.rx_packets = |
| np->estats.rx_unicast + |
| np->estats.rx_multicast + |
| np->estats.rx_broadcast; |
| np->estats.rx_errors_total = |
| np->estats.rx_crc_errors + |
| np->estats.rx_over_errors + |
| np->estats.rx_frame_error + |
| (np->estats.rx_frame_align_error - np->estats.rx_extra_byte) + |
| np->estats.rx_late_collision + |
| np->estats.rx_runt + |
| np->estats.rx_frame_too_long; |
| |
| if (!np->in_shutdown) |
| mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL); |
| } |
| |
| 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); |
| u32 flags = 0; |
| |
| if (wolinfo->wolopts == 0) { |
| np->wolenabled = 0; |
| } else if (wolinfo->wolopts & WAKE_MAGIC) { |
| np->wolenabled = 1; |
| flags = NVREG_WAKEUPFLAGS_ENABLE; |
| } |
| if (netif_running(dev)) { |
| spin_lock_irq(&np->lock); |
| writel(flags, base + NvRegWakeUpFlags); |
| 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 */ |
| if (nv_update_linkspeed(dev)) { |
| if (!netif_carrier_ok(dev)) |
| netif_carrier_on(dev); |
| } else { |
| if (netif_carrier_ok(dev)) |
| netif_carrier_off(dev); |
| } |
| } |
| |
| if (netif_carrier_ok(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; |
| } else { |
| ecmd->speed = -1; |
| ecmd->duplex = -1; |
| } |
| |
| 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); |
| 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->gigabit == PHY_GIGABIT) { |
| adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, 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; |
| } |
| |
| netif_carrier_off(dev); |
| if (netif_running(dev)) { |
| nv_disable_irq(dev); |
| netif_tx_lock_bh(dev); |
| spin_lock(&np->lock); |
| /* stop engines */ |
| nv_stop_rx(dev); |
| nv_stop_tx(dev); |
| spin_unlock(&np->lock); |
| netif_tx_unlock_bh(dev); |
| } |
| |
| 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 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
| 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; |
| if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */ |
| adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
| if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) |
| adv |= ADVERTISE_PAUSE_ASYM; |
| mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
| |
| if (np->gigabit == PHY_GIGABIT) { |
| adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
| adv &= ~ADVERTISE_1000FULL; |
| if (ecmd->advertising & ADVERTISED_1000baseT_Full) |
| adv |= ADVERTISE_1000FULL; |
| mii_rw(dev, np->phyaddr, MII_CTRL1000, adv); |
| } |
| |
| if (netif_running(dev)) |
| printk(KERN_INFO "%s: link down.\n", dev->name); |
| 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 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
| 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; |
| np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE); |
| if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */ |
| adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
| np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
| } |
| if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) { |
| adv |= ADVERTISE_PAUSE_ASYM; |
| np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
| } |
| mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
| np->fixed_mode = adv; |
| |
| if (np->gigabit == PHY_GIGABIT) { |
| adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
| adv &= ~ADVERTISE_1000FULL; |
| mii_rw(dev, np->phyaddr, MII_CTRL1000, adv); |
| } |
| |
| bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
| bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX); |
| if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL)) |
| bmcr |= BMCR_FULLDPLX; |
| if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL)) |
| bmcr |= BMCR_SPEED100; |
| mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); |
| if (np->phy_oui == PHY_OUI_MARVELL) { |
| /* reset the phy */ |
| if (phy_reset(dev)) { |
| printk(KERN_INFO "%s: phy reset failed\n", dev->name); |
| return -EINVAL; |
| } |
| } else if (netif_running(dev)) { |
| /* Wait a bit and then reconfigure the nic. */ |
| udelay(10); |
| nv_linkchange(dev); |
| } |
| } |
| |
| if (netif_running(dev)) { |
| nv_start_rx(dev); |
| nv_start_tx(dev); |
| nv_enable_irq(dev); |
| } |
| |
| return 0; |
| } |
| |
| #define FORCEDETH_REGS_VER 1 |
| |
| static int nv_get_regs_len(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| return np->register_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 <= np->register_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; |
| |
| if (np->autoneg) { |
| int bmcr; |
| |
| netif_carrier_off(dev); |
| if (netif_running(dev)) { |
| nv_disable_irq(dev); |
| netif_tx_lock_bh(dev); |
| spin_lock(&np->lock); |
| /* stop engines */ |
| nv_stop_rx(dev); |
| nv_stop_tx(dev); |
| spin_unlock(&np->lock); |
| netif_tx_unlock_bh(dev); |
| printk(KERN_INFO "%s: link down.\n", dev->name); |
| } |
| |
| bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
| bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); |
| mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); |
| |
| if (netif_running(dev)) { |
| nv_start_rx(dev); |
| nv_start_tx(dev); |
| nv_enable_irq(dev); |
| } |
| ret = 0; |
| } else { |
| ret = -EINVAL; |
| } |
| |
| return ret; |
| } |
| |
| static int nv_set_tso(struct net_device *dev, u32 value) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| if ((np->driver_data & DEV_HAS_CHECKSUM)) |
| return ethtool_op_set_tso(dev, value); |
| else |
| return -EOPNOTSUPP; |
| } |
| |
| static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3; |
| ring->rx_mini_max_pending = 0; |
| ring->rx_jumbo_max_pending = 0; |
| ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3; |
| |
| ring->rx_pending = np->rx_ring_size; |
| ring->rx_mini_pending = 0; |
| ring->rx_jumbo_pending = 0; |
| ring->tx_pending = np->tx_ring_size; |
| } |
| |
| static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| u8 *rxtx_ring, *rx_skbuff, *tx_skbuff, *rx_dma, *tx_dma, *tx_dma_len; |
| dma_addr_t ring_addr; |
| |
| if (ring->rx_pending < RX_RING_MIN || |
| ring->tx_pending < TX_RING_MIN || |
| ring->rx_mini_pending != 0 || |
| ring->rx_jumbo_pending != 0 || |
| (np->desc_ver == DESC_VER_1 && |
| (ring->rx_pending > RING_MAX_DESC_VER_1 || |
| ring->tx_pending > RING_MAX_DESC_VER_1)) || |
| (np->desc_ver != DESC_VER_1 && |
| (ring->rx_pending > RING_MAX_DESC_VER_2_3 || |
| ring->tx_pending > RING_MAX_DESC_VER_2_3))) { |
| return -EINVAL; |
| } |
| |
| /* allocate new rings */ |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| rxtx_ring = pci_alloc_consistent(np->pci_dev, |
| sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending), |
| &ring_addr); |
| } else { |
| rxtx_ring = pci_alloc_consistent(np->pci_dev, |
| sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending), |
| &ring_addr); |
| } |
| rx_skbuff = kmalloc(sizeof(struct sk_buff*) * ring->rx_pending, GFP_KERNEL); |
| rx_dma = kmalloc(sizeof(dma_addr_t) * ring->rx_pending, GFP_KERNEL); |
| tx_skbuff = kmalloc(sizeof(struct sk_buff*) * ring->tx_pending, GFP_KERNEL); |
| tx_dma = kmalloc(sizeof(dma_addr_t) * ring->tx_pending, GFP_KERNEL); |
| tx_dma_len = kmalloc(sizeof(unsigned int) * ring->tx_pending, GFP_KERNEL); |
| if (!rxtx_ring || !rx_skbuff || !rx_dma || !tx_skbuff || !tx_dma || !tx_dma_len) { |
| /* fall back to old rings */ |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| if(rxtx_ring) |
| pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending), |
| rxtx_ring, ring_addr); |
| } else { |
| if (rxtx_ring) |
| pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending), |
| rxtx_ring, ring_addr); |
| } |
| if (rx_skbuff) |
| kfree(rx_skbuff); |
| if (rx_dma) |
| kfree(rx_dma); |
| if (tx_skbuff) |
| kfree(tx_skbuff); |
| if (tx_dma) |
| kfree(tx_dma); |
| if (tx_dma_len) |
| kfree(tx_dma_len); |
| goto exit; |
| } |
| |
| if (netif_running(dev)) { |
| nv_disable_irq(dev); |
| netif_tx_lock_bh(dev); |
| spin_lock(&np->lock); |
| /* stop engines */ |
| nv_stop_rx(dev); |
| nv_stop_tx(dev); |
| nv_txrx_reset(dev); |
| /* drain queues */ |
| nv_drain_rx(dev); |
| nv_drain_tx(dev); |
| /* delete queues */ |
| free_rings(dev); |
| } |
| |
| /* set new values */ |
| np->rx_ring_size = ring->rx_pending; |
| np->tx_ring_size = ring->tx_pending; |
| np->tx_limit_stop = ring->tx_pending - TX_LIMIT_DIFFERENCE; |
| np->tx_limit_start = ring->tx_pending - TX_LIMIT_DIFFERENCE - 1; |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| np->rx_ring.orig = (struct ring_desc*)rxtx_ring; |
| np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size]; |
| } else { |
| np->rx_ring.ex = (struct ring_desc_ex*)rxtx_ring; |
| np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; |
| } |
| np->rx_skbuff = (struct sk_buff**)rx_skbuff; |
| np->rx_dma = (dma_addr_t*)rx_dma; |
| np->tx_skbuff = (struct sk_buff**)tx_skbuff; |
| np->tx_dma = (dma_addr_t*)tx_dma; |
| np->tx_dma_len = (unsigned int*)tx_dma_len; |
| np->ring_addr = ring_addr; |
| |
| memset(np->rx_skbuff, 0, sizeof(struct sk_buff*) * np->rx_ring_size); |
| memset(np->rx_dma, 0, sizeof(dma_addr_t) * np->rx_ring_size); |
| memset(np->tx_skbuff, 0, sizeof(struct sk_buff*) * np->tx_ring_size); |
| memset(np->tx_dma, 0, sizeof(dma_addr_t) * np->tx_ring_size); |
| memset(np->tx_dma_len, 0, sizeof(unsigned int) * np->tx_ring_size); |
| |
| if (netif_running(dev)) { |
| /* reinit driver view of the queues */ |
| set_bufsize(dev); |
| if (nv_init_ring(dev)) { |
| if (!np->in_shutdown) |
| mod_timer(&np->oom_kick, jiffies + OOM_REFILL); |
| } |
| |
| /* reinit nic view of the queues */ |
| writel(np->rx_buf_sz, base + NvRegOffloadConfig); |
| setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
| writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
| base + NvRegRingSizes); |
| pci_push(base); |
| writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
| pci_push(base); |
| |
| /* restart engines */ |
| nv_start_rx(dev); |
| nv_start_tx(dev); |
| spin_unlock(&np->lock); |
| netif_tx_unlock_bh(dev); |
| nv_enable_irq(dev); |
| } |
| return 0; |
| exit: |
| return -ENOMEM; |
| } |
| |
| static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0; |
| pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0; |
| pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0; |
| } |
| |
| static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| int adv, bmcr; |
| |
| if ((!np->autoneg && np->duplex == 0) || |
| (np->autoneg && !pause->autoneg && np->duplex == 0)) { |
| printk(KERN_INFO "%s: can not set pause settings when forced link is in half duplex.\n", |
| dev->name); |
| return -EINVAL; |
| } |
| if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) { |
| printk(KERN_INFO "%s: hardware does not support tx pause frames.\n", dev->name); |
| return -EINVAL; |
| } |
| |
| netif_carrier_off(dev); |
| if (netif_running(dev)) { |
| nv_disable_irq(dev); |
| netif_tx_lock_bh(dev); |
| spin_lock(&np->lock); |
| /* stop engines */ |
| nv_stop_rx(dev); |
| nv_stop_tx(dev); |
| spin_unlock(&np->lock); |
| netif_tx_unlock_bh(dev); |
| } |
| |
| np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ); |
| if (pause->rx_pause) |
| np->pause_flags |= NV_PAUSEFRAME_RX_REQ; |
| if (pause->tx_pause) |
| np->pause_flags |= NV_PAUSEFRAME_TX_REQ; |
| |
| if (np->autoneg && pause->autoneg) { |
| np->pause_flags |= NV_PAUSEFRAME_AUTONEG; |
| |
| adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); |
| adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
| if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */ |
| adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
| if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) |
| adv |= ADVERTISE_PAUSE_ASYM; |
| mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
| |
| if (netif_running(dev)) |
| printk(KERN_INFO "%s: link down.\n", dev->name); |
| bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
| bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); |
| mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); |
| } else { |
| np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE); |
| if (pause->rx_pause) |
| np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
| if (pause->tx_pause) |
| np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
| |
| if (!netif_running(dev)) |
| nv_update_linkspeed(dev); |
| else |
| nv_update_pause(dev, np->pause_flags); |
| } |
| |
| if (netif_running(dev)) { |
| nv_start_rx(dev); |
| nv_start_tx(dev); |
| nv_enable_irq(dev); |
| } |
| return 0; |
| } |
| |
| static u32 nv_get_rx_csum(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| return (np->txrxctl_bits & NVREG_TXRXCTL_RXCHECK) != 0; |
| } |
| |
| static int nv_set_rx_csum(struct net_device *dev, u32 data) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| int retcode = 0; |
| |
| if (np->driver_data & DEV_HAS_CHECKSUM) { |
| |
| if (((np->txrxctl_bits & NVREG_TXRXCTL_RXCHECK) && data) || |
| (!(np->txrxctl_bits & NVREG_TXRXCTL_RXCHECK) && !data)) { |
| /* already set or unset */ |
| return 0; |
| } |
| |
| if (data) { |
| np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK; |
| } else if (!(np->vlanctl_bits & NVREG_VLANCONTROL_ENABLE)) { |
| np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK; |
| } else { |
| printk(KERN_INFO "Can not disable rx checksum if vlan is enabled\n"); |
| return -EINVAL; |
| } |
| |
| if (netif_running(dev)) { |
| spin_lock_irq(&np->lock); |
| writel(np->txrxctl_bits, base + NvRegTxRxControl); |
| spin_unlock_irq(&np->lock); |
| } |
| } else { |
| return -EINVAL; |
| } |
| |
| return retcode; |
| } |
| |
| static int nv_set_tx_csum(struct net_device *dev, u32 data) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| if (np->driver_data & DEV_HAS_CHECKSUM) |
| return ethtool_op_set_tx_hw_csum(dev, data); |
| else |
| return -EOPNOTSUPP; |
| } |
| |
| static int nv_set_sg(struct net_device *dev, u32 data) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| if (np->driver_data & DEV_HAS_CHECKSUM) |
| return ethtool_op_set_sg(dev, data); |
| else |
| return -EOPNOTSUPP; |
| } |
| |
| static int nv_get_stats_count(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| if (np->driver_data & DEV_HAS_STATISTICS) |
| return (sizeof(struct nv_ethtool_stats)/sizeof(u64)); |
| else |
| return 0; |
| } |
| |
| static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *buffer) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| /* update stats */ |
| nv_do_stats_poll((unsigned long)dev); |
| |
| memcpy(buffer, &np->estats, nv_get_stats_count(dev)*sizeof(u64)); |
| } |
| |
| static int nv_self_test_count(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| |
| if (np->driver_data & DEV_HAS_TEST_EXTENDED) |
| return NV_TEST_COUNT_EXTENDED; |
| else |
| return NV_TEST_COUNT_BASE; |
| } |
| |
| static int nv_link_test(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| int mii_status; |
| |
| mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); |
| mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); |
| |
| /* check phy link status */ |
| if (!(mii_status & BMSR_LSTATUS)) |
| return 0; |
| else |
| return 1; |
| } |
| |
| static int nv_register_test(struct net_device *dev) |
| { |
| u8 __iomem *base = get_hwbase(dev); |
| int i = 0; |
| u32 orig_read, new_read; |
| |
| do { |
| orig_read = readl(base + nv_registers_test[i].reg); |
| |
| /* xor with mask to toggle bits */ |
| orig_read ^= nv_registers_test[i].mask; |
| |
| writel(orig_read, base + nv_registers_test[i].reg); |
| |
| new_read = readl(base + nv_registers_test[i].reg); |
| |
| if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask)) |
| return 0; |
| |
| /* restore original value */ |
| orig_read ^= nv_registers_test[i].mask; |
| writel(orig_read, base + nv_registers_test[i].reg); |
| |
| } while (nv_registers_test[++i].reg != 0); |
| |
| return 1; |
| } |
| |
| static int nv_interrupt_test(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| int ret = 1; |
| int testcnt; |
| u32 save_msi_flags, save_poll_interval = 0; |
| |
| if (netif_running(dev)) { |
| /* free current irq */ |
| nv_free_irq(dev); |
| save_poll_interval = readl(base+NvRegPollingInterval); |
| } |
| |
| /* flag to test interrupt handler */ |
| np->intr_test = 0; |
| |
| /* setup test irq */ |
| save_msi_flags = np->msi_flags; |
| np->msi_flags &= ~NV_MSI_X_VECTORS_MASK; |
| np->msi_flags |= 0x001; /* setup 1 vector */ |
| if (nv_request_irq(dev, 1)) |
| return 0; |
| |
| /* setup timer interrupt */ |
| writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); |
| writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); |
| |
| nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER); |
| |
| /* wait for at least one interrupt */ |
| msleep(100); |
| |
| spin_lock_irq(&np->lock); |
| |
| /* flag should be set within ISR */ |
| testcnt = np->intr_test; |
| if (!testcnt) |
| ret = 2; |
| |
| nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER); |
| if (!(np->msi_flags & NV_MSI_X_ENABLED)) |
| writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
| else |
| writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); |
| |
| spin_unlock_irq(&np->lock); |
| |
| nv_free_irq(dev); |
| |
| np->msi_flags = save_msi_flags; |
| |
| if (netif_running(dev)) { |
| writel(save_poll_interval, base + NvRegPollingInterval); |
| writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); |
| /* restore original irq */ |
| if (nv_request_irq(dev, 0)) |
| return 0; |
| } |
| |
| return ret; |
| } |
| |
| static int nv_loopback_test(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| struct sk_buff *tx_skb, *rx_skb; |
| dma_addr_t test_dma_addr; |
| u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET); |
| u32 Flags; |
| int len, i, pkt_len; |
| u8 *pkt_data; |
| u32 filter_flags = 0; |
| u32 misc1_flags = 0; |
| int ret = 1; |
| |
| if (netif_running(dev)) { |
| nv_disable_irq(dev); |
| filter_flags = readl(base + NvRegPacketFilterFlags); |
| misc1_flags = readl(base + NvRegMisc1); |
| } else { |
| nv_txrx_reset(dev); |
| } |
| |
| /* reinit driver view of the rx queue */ |
| set_bufsize(dev); |
| nv_init_ring(dev); |
| |
| /* setup hardware for loopback */ |
| writel(NVREG_MISC1_FORCE, base + NvRegMisc1); |
| writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags); |
| |
| /* reinit nic view of the rx queue */ |
| writel(np->rx_buf_sz, base + NvRegOffloadConfig); |
| setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
| writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
| base + NvRegRingSizes); |
| pci_push(base); |
| |
| /* restart rx engine */ |
| nv_start_rx(dev); |
| nv_start_tx(dev); |
| |
| /* setup packet for tx */ |
| pkt_len = ETH_DATA_LEN; |
| tx_skb = dev_alloc_skb(pkt_len); |
| pkt_data = skb_put(tx_skb, pkt_len); |
| for (i = 0; i < pkt_len; i++) |
| pkt_data[i] = (u8)(i & 0xff); |
| test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data, |
| tx_skb->end-tx_skb->data, PCI_DMA_FROMDEVICE); |
| |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| np->tx_ring.orig[0].PacketBuffer = cpu_to_le32(test_dma_addr); |
| np->tx_ring.orig[0].FlagLen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra); |
| } else { |
| np->tx_ring.ex[0].PacketBufferHigh = cpu_to_le64(test_dma_addr) >> 32; |
| np->tx_ring.ex[0].PacketBufferLow = cpu_to_le64(test_dma_addr) & 0x0FFFFFFFF; |
| np->tx_ring.ex[0].FlagLen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra); |
| } |
| writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
| pci_push(get_hwbase(dev)); |
| |
| msleep(500); |
| |
| /* check for rx of the packet */ |
| if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
| Flags = le32_to_cpu(np->rx_ring.orig[0].FlagLen); |
| len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver); |
| |
| } else { |
| Flags = le32_to_cpu(np->rx_ring.ex[0].FlagLen); |
| len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver); |
| } |
| |
| if (Flags & NV_RX_AVAIL) { |
| ret = 0; |
| } else if (np->desc_ver == DESC_VER_1) { |
| if (Flags & NV_RX_ERROR) |
| ret = 0; |
| } else { |
| if (Flags & NV_RX2_ERROR) { |
| ret = 0; |
| } |
| } |
| |
| if (ret) { |
| if (len != pkt_len) { |
| ret = 0; |
| dprintk(KERN_DEBUG "%s: loopback len mismatch %d vs %d\n", |
| dev->name, len, pkt_len); |
| } else { |
| rx_skb = np->rx_skbuff[0]; |
| for (i = 0; i < pkt_len; i++) { |
| if (rx_skb->data[i] != (u8)(i & 0xff)) { |
| ret = 0; |
| dprintk(KERN_DEBUG "%s: loopback pattern check failed on byte %d\n", |
| dev->name, i); |
| break; |
| } |
| } |
| } |
| } else { |
| dprintk(KERN_DEBUG "%s: loopback - did not receive test packet\n", dev->name); |
| } |
| |
| pci_unmap_page(np->pci_dev, test_dma_addr, |
| tx_skb->end-tx_skb->data, |
| PCI_DMA_TODEVICE); |
| dev_kfree_skb_any(tx_skb); |
| |
| /* 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); |
| |
| if (netif_running(dev)) { |
| writel(misc1_flags, base + NvRegMisc1); |
| writel(filter_flags, base + NvRegPacketFilterFlags); |
| nv_enable_irq(dev); |
| } |
| |
| return ret; |
| } |
| |
| static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| int result; |
| memset(buffer, 0, nv_self_test_count(dev)*sizeof(u64)); |
| |
| if (!nv_link_test(dev)) { |
| test->flags |= ETH_TEST_FL_FAILED; |
| buffer[0] = 1; |
| } |
| |
| if (test->flags & ETH_TEST_FL_OFFLINE) { |
| if (netif_running(dev)) { |
| netif_stop_queue(dev); |
| netif_tx_lock_bh(dev); |
| spin_lock_irq(&np->lock); |
| nv_disable_hw_interrupts(dev, np->irqmask); |
| if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
| writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
| } else { |
| writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); |
| } |
| /* 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); |
| spin_unlock_irq(&np->lock); |
| netif_tx_unlock_bh(dev); |
| } |
| |
| if (!nv_register_test(dev)) { |
| test->flags |= ETH_TEST_FL_FAILED; |
| buffer[1] = 1; |
| } |
| |
| result = nv_interrupt_test(dev); |
| if (result != 1) { |
| test->flags |= ETH_TEST_FL_FAILED; |
| buffer[2] = 1; |
| } |
| if (result == 0) { |
| /* bail out */ |
| return; |
| } |
| |
| if (!nv_loopback_test(dev)) { |
| test->flags |= ETH_TEST_FL_FAILED; |
| buffer[3] = 1; |
| } |
| |
| if (netif_running(dev)) { |
| /* reinit driver view of the rx queue */ |
| set_bufsize(dev); |
| if (nv_init_ring(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); |
| setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
| writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-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); |
| netif_start_queue(dev); |
| nv_enable_hw_interrupts(dev, np->irqmask); |
| } |
| } |
| } |
| |
| static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer) |
| { |
| switch (stringset) { |
| case ETH_SS_STATS: |
| memcpy(buffer, &nv_estats_str, nv_get_stats_count(dev)*sizeof(struct nv_ethtool_str)); |
| break; |
| case ETH_SS_TEST: |
| memcpy(buffer, &nv_etests_str, nv_self_test_count(dev)*sizeof(struct nv_ethtool_str)); |
| break; |
| } |
| } |
| |
| 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, |
| .get_tso = ethtool_op_get_tso, |
| .set_tso = nv_set_tso, |
| .get_ringparam = nv_get_ringparam, |
| .set_ringparam = nv_set_ringparam, |
| .get_pauseparam = nv_get_pauseparam, |
| .set_pauseparam = nv_set_pauseparam, |
| .get_rx_csum = nv_get_rx_csum, |
| .set_rx_csum = nv_set_rx_csum, |
| .get_tx_csum = ethtool_op_get_tx_csum, |
| .set_tx_csum = nv_set_tx_csum, |
| .get_sg = ethtool_op_get_sg, |
| .set_sg = nv_set_sg, |
| .get_strings = nv_get_strings, |
| .get_stats_count = nv_get_stats_count, |
| .get_ethtool_stats = nv_get_ethtool_stats, |
| .self_test_count = nv_self_test_count, |
| .self_test = nv_self_test, |
| }; |
| |
| static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
| { |
| struct fe_priv *np = get_nvpriv(dev); |
| |
| spin_lock_irq(&np->lock); |
| |
| /* save vlan group */ |
| np->vlangrp = grp; |
| |
| if (grp) { |
| /* enable vlan on MAC */ |
| np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP | NVREG_TXRXCTL_VLANINS; |
| } else { |
| /* disable vlan on MAC */ |
| np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP; |
| np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS; |
| } |
| |
| writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
| |
| spin_unlock_irq(&np->lock); |
| }; |
| |
| static void nv_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| { |
| /* nothing to do */ |
| }; |
| |
| static int nv_open(struct net_device *dev) |
| { |
| struct fe_priv *np = netdev_priv(dev); |
| u8 __iomem *base = get_hwbase(dev); |
| int ret = 1; |
| int oom, i; |
| |
| dprintk(KERN_DEBUG "nv_open: begin\n"); |
| |
| /* 1) erase previous misconfiguration */ |
| if (np->driver_data & DEV_HAS_POWER_CNTRL) |
| nv_mac_reset(dev); |
| /* 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); |
| |
| if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) |
| writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame); |
| |
| /* 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 */ |
| setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
| writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
| base + NvRegRingSizes); |
| |
| /* 5) continue setup */ |
| writel(np->linkspeed, base + NvRegLinkSpeed); |
| if (np->desc_ver == DESC_VER_1) |
| writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark); |
| else |
| writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark); |
| writel(np->txrxctl_bits, base + NvRegTxRxControl); |
| writel(np->vlanctl_bits, base + NvRegVlanControl); |
| 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_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral); |
| writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral); |
| if (poll_interval == -1) { |
| if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) |
| writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval); |
| else |
| writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); |
| } |
| else |
| writel(poll_interval & 0xFFFF, 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); |
| if (np->wolenabled) |
| writel(NVREG_WAKEUPFLAGS_ENABLE , 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); |
| |
| nv_disable_hw_interrupts(dev, np->irqmask); |
| pci_push(base); |
| writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus); |
| writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
| pci_push(base); |
| |
| if (nv_request_irq(dev, 0)) { |
| goto out_drain; |
| } |
| |
| /* ask for interrupts */ |
| nv_enable_hw_interrupts(dev, np->irqmask); |
| |
| 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); |
| |
| /* start statistics timer */ |
| if (np->driver_data & DEV_HAS_STATISTICS) |
| mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL); |
| |
| 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); |
| del_timer_sync(&np->stats_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); |
| nv_disable_hw_interrupts(dev, np->irqmask); |
| pci_push(base); |
| dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name); |
| |
| spin_unlock_irq(&np->lock); |
| |
| nv_free_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; |
| u32 powerstate; |
| |
| 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 */ |
| init_timer(&np->stats_poll); |
| np->stats_poll.data = (unsigned long) dev; |
| np->stats_poll.function = &nv_do_stats_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; |
| |
| if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS)) |
| np->register_size = NV_PCI_REGSZ_VER2; |
| else |
| np->register_size = NV_PCI_REGSZ_VER1; |
| |
| 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) >= np->register_size) { |
| 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; |
| } |
| |
| /* copy of driver data */ |
| np->driver_data = id->driver_data; |
| |
| /* 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; |
| np->txrxctl_bits = NVREG_TXRXCTL_DESC_3; |
| if (dma_64bit) { |
| if (pci_set_dma_mask(pci_dev, DMA_39BIT_MASK)) { |
| 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; |
| printk(KERN_INFO "forcedeth: using HIGHDMA\n"); |
| } |
| if (pci_set_consistent_dma_mask(pci_dev, DMA_39BIT_MASK)) { |
| printk(KERN_INFO "forcedeth: 64-bit DMA (consistent) failed, using 32-bit ring buffers for device %s.\n", |
| pci_name(pci_dev)); |
| } |
| } |
| } 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 |
| } |
| |
| np->vlanctl_bits = 0; |
| if (id->driver_data & DEV_HAS_VLAN) { |
| np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE; |
| dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX; |
| dev->vlan_rx_register = nv_vlan_rx_register; |
| dev->vlan_rx_kill_vid = nv_vlan_rx_kill_vid; |
| } |
| |
| np->msi_flags = 0; |
| if ((id->driver_data & DEV_HAS_MSI) && msi) { |
| np->msi_flags |= NV_MSI_CAPABLE; |
| } |
| if ((id->driver_data & DEV_HAS_MSI_X) && msix) { |
| np->msi_flags |= NV_MSI_X_CAPABLE; |
| } |
| |
| np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG; |
| if (id->driver_data & DEV_HAS_PAUSEFRAME_TX) { |
| np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ; |
| } |
| |
| |
| err = -ENOMEM; |
| np->base = ioremap(addr, np->register_size); |
| if (!np->base) |
| goto out_relreg; |
| dev->base_addr = (unsigned long)np->base; |
| |
| dev->irq = pci_dev->irq; |
| |
| np->rx_ring_size = RX_RING_DEFAULT; |
| np->tx_ring_size = TX_RING_DEFAULT; |
| np->tx_limit_stop = np->tx_ring_size - TX_LIMIT_DIFFERENCE; |
| np->tx_limit_start = np->tx_ring_size - TX_LIMIT_DIFFERENCE - 1; |
| |
| 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) * (np->rx_ring_size + np->tx_ring_size), |
| &np->ring_addr); |
| if (!np->rx_ring.orig) |
| goto out_unmap; |
| np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size]; |
| } else { |
| np->rx_ring.ex = pci_alloc_consistent(pci_dev, |
| sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size), |
| &np->ring_addr); |
| if (!np->rx_ring.ex) |
| goto out_unmap; |
| np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; |
| } |
| np->rx_skbuff = kmalloc(sizeof(struct sk_buff*) * np->rx_ring_size, GFP_KERNEL); |
| np->rx_dma = kmalloc(sizeof(dma_addr_t) * np->rx_ring_size, GFP_KERNEL); |
| np->tx_skbuff = kmalloc(sizeof(struct sk_buff*) * np->tx_ring_size, GFP_KERNEL); |
| np->tx_dma = kmalloc(sizeof(dma_addr_t) * np->tx_ring_size, GFP_KERNEL); |
| np->tx_dma_len = kmalloc(sizeof(unsigned int) * np->tx_ring_size, GFP_KERNEL); |
| if (!np->rx_skbuff || !np->rx_dma || !np->tx_skbuff || !np->tx_dma || !np->tx_dma_len) |
| goto out_freering; |
| memset(np->rx_skbuff, 0, sizeof(struct sk_buff*) * np->rx_ring_size); |
| memset(np->rx_dma, 0, sizeof(dma_addr_t) * np->rx_ring_size); |
| memset(np->tx_skbuff, 0, sizeof(struct sk_buff*) * np->tx_ring_size); |
| memset(np->tx_dma, 0, sizeof(dma_addr_t) * np->tx_ring_size); |
| memset(np->tx_dma_len, 0, sizeof(unsigned int) * np->tx_ring_size); |
| |
| 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 (id->driver_data & DEV_HAS_POWER_CNTRL) { |
| u8 revision_id; |
| pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id); |
| |
| /* take phy and nic out of low power mode */ |
| powerstate = readl(base + NvRegPowerState2); |
| powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK; |
| if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 || |
| id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) && |
| revision_id >= 0xA3) |
| powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3; |
| writel(powerstate, base + NvRegPowerState2); |
| } |
| |
| if (np->desc_ver == DESC_VER_1) { |
| np->tx_flags = NV_TX_VALID; |
| } else { |
| np->tx_flags = NV_TX2_VALID; |
| } |
| if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) { |
| np->irqmask = NVREG_IRQMASK_THROUGHPUT; |
| if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */ |
| np->msi_flags |= 0x0003; |
| } else { |
| np->irqmask = NVREG_IRQMASK_CPU; |
| if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */ |
| np->msi_flags |= 0x0001; |
| } |
| |
| 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; |
| int phyaddr = i & 0x1F; |
| |
| spin_lock_irq(&np->lock); |
| id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ); |
| spin_unlock_irq(&np->lock); |
| if (id1 < 0 || id1 == 0xffff) |
| continue; |
| spin_lock_irq(&np->lock); |
| id2 = mii_rw(dev, phyaddr, 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, phyaddr); |
| np->phyaddr = phyaddr; |
| np->phy_oui = id1 | id2; |
| break; |
| } |
| if (i == 33) { |
| printk(KERN_INFO "%s: open: Could not find a valid PHY.\n", |
| pci_name(pci_dev)); |
| goto out_error; |
| } |
| |
| /* 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_error; |
| } |
| 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_error: |
| pci_set_drvdata(pci_dev, NULL); |
| out_freering: |
| free_rings(dev); |
| 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); |
| |
| unregister_netdev(dev); |
| |
| /* free all structures */ |
| free_rings(dev); |
| 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|DEV_HAS_POWER_CNTRL, |
| }, |
| { /* 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|DEV_HAS_POWER_CNTRL, |
| }, |
| { /* 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|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* 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|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP61 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP61 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_17), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP61 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_18), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP61 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_19), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP65 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP65 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP65 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| { /* MCP65 Ethernet Controller */ |
| PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23), |
| .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS|DEV_HAS_TEST_EXTENDED, |
| }, |
| {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_param(optimization_mode, int, 0); |
| MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer."); |
| module_param(poll_interval, int, 0); |
| MODULE_PARM_DESC(poll_interval, "Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535."); |
| module_param(msi, int, 0); |
| MODULE_PARM_DESC(msi, "MSI interrupts are enabled by setting to 1 and disabled by setting to 0."); |
| module_param(msix, int, 0); |
| MODULE_PARM_DESC(msix, "MSIX interrupts are enabled by setting to 1 and disabled by setting to 0."); |
| module_param(dma_64bit, int, 0); |
| MODULE_PARM_DESC(dma_64bit, "High DMA is enabled by setting to 1 and disabled by setting to 0."); |
| |
| 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); |