6422 lines
190 KiB
C
6422 lines
190 KiB
C
/*
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* forcedeth: Ethernet driver for NVIDIA nForce media access controllers.
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*
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* Note: This driver is a cleanroom reimplementation based on reverse
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* engineered documentation written by Carl-Daniel Hailfinger
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* and Andrew de Quincey.
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*
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* NVIDIA, nForce and other NVIDIA marks are trademarks or registered
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* trademarks of NVIDIA Corporation in the United States and other
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* countries.
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*
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* Copyright (C) 2003,4,5 Manfred Spraul
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* Copyright (C) 2004 Andrew de Quincey (wol support)
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* Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
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* IRQ rate fixes, bigendian fixes, cleanups, verification)
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* Copyright (c) 2004,2005,2006,2007,2008,2009 NVIDIA Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Known bugs:
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* We suspect that on some hardware no TX done interrupts are generated.
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* This means recovery from netif_stop_queue only happens if the hw timer
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* interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)
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* and the timer is active in the IRQMask, or if a rx packet arrives by chance.
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* If your hardware reliably generates tx done interrupts, then you can remove
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* DEV_NEED_TIMERIRQ from the driver_data flags.
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* DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
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* superfluous timer interrupts from the nic.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define FORCEDETH_VERSION "0.64"
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#define DRV_NAME "forcedeth"
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/ethtool.h>
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#include <linux/timer.h>
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#include <linux/skbuff.h>
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#include <linux/mii.h>
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#include <linux/random.h>
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#include <linux/if_vlan.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <linux/prefetch.h>
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#include <linux/u64_stats_sync.h>
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#include <linux/io.h>
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#include <asm/irq.h>
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#define TX_WORK_PER_LOOP 64
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#define RX_WORK_PER_LOOP 64
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/*
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* Hardware access:
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*/
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#define DEV_NEED_TIMERIRQ 0x0000001 /* set the timer irq flag in the irq mask */
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#define DEV_NEED_LINKTIMER 0x0000002 /* poll link settings. Relies on the timer irq */
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#define DEV_HAS_LARGEDESC 0x0000004 /* device supports jumbo frames and needs packet format 2 */
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#define DEV_HAS_HIGH_DMA 0x0000008 /* device supports 64bit dma */
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#define DEV_HAS_CHECKSUM 0x0000010 /* device supports tx and rx checksum offloads */
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#define DEV_HAS_VLAN 0x0000020 /* device supports vlan tagging and striping */
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#define DEV_HAS_MSI 0x0000040 /* device supports MSI */
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#define DEV_HAS_MSI_X 0x0000080 /* device supports MSI-X */
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#define DEV_HAS_POWER_CNTRL 0x0000100 /* device supports power savings */
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#define DEV_HAS_STATISTICS_V1 0x0000200 /* device supports hw statistics version 1 */
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#define DEV_HAS_STATISTICS_V2 0x0000400 /* device supports hw statistics version 2 */
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#define DEV_HAS_STATISTICS_V3 0x0000800 /* device supports hw statistics version 3 */
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#define DEV_HAS_STATISTICS_V12 0x0000600 /* device supports hw statistics version 1 and 2 */
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#define DEV_HAS_STATISTICS_V123 0x0000e00 /* device supports hw statistics version 1, 2, and 3 */
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#define DEV_HAS_TEST_EXTENDED 0x0001000 /* device supports extended diagnostic test */
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#define DEV_HAS_MGMT_UNIT 0x0002000 /* device supports management unit */
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#define DEV_HAS_CORRECT_MACADDR 0x0004000 /* device supports correct mac address order */
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#define DEV_HAS_COLLISION_FIX 0x0008000 /* device supports tx collision fix */
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#define DEV_HAS_PAUSEFRAME_TX_V1 0x0010000 /* device supports tx pause frames version 1 */
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#define DEV_HAS_PAUSEFRAME_TX_V2 0x0020000 /* device supports tx pause frames version 2 */
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#define DEV_HAS_PAUSEFRAME_TX_V3 0x0040000 /* device supports tx pause frames version 3 */
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#define DEV_NEED_TX_LIMIT 0x0080000 /* device needs to limit tx */
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#define DEV_NEED_TX_LIMIT2 0x0180000 /* device needs to limit tx, expect for some revs */
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#define DEV_HAS_GEAR_MODE 0x0200000 /* device supports gear mode */
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#define DEV_NEED_PHY_INIT_FIX 0x0400000 /* device needs specific phy workaround */
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#define DEV_NEED_LOW_POWER_FIX 0x0800000 /* device needs special power up workaround */
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#define DEV_NEED_MSI_FIX 0x1000000 /* device needs msi workaround */
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enum {
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NvRegIrqStatus = 0x000,
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#define NVREG_IRQSTAT_MIIEVENT 0x040
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#define NVREG_IRQSTAT_MASK 0x83ff
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NvRegIrqMask = 0x004,
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#define NVREG_IRQ_RX_ERROR 0x0001
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#define NVREG_IRQ_RX 0x0002
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#define NVREG_IRQ_RX_NOBUF 0x0004
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#define NVREG_IRQ_TX_ERR 0x0008
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#define NVREG_IRQ_TX_OK 0x0010
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#define NVREG_IRQ_TIMER 0x0020
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#define NVREG_IRQ_LINK 0x0040
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#define NVREG_IRQ_RX_FORCED 0x0080
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#define NVREG_IRQ_TX_FORCED 0x0100
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#define NVREG_IRQ_RECOVER_ERROR 0x8200
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#define NVREG_IRQMASK_THROUGHPUT 0x00df
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#define NVREG_IRQMASK_CPU 0x0060
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#define NVREG_IRQ_TX_ALL (NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED)
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#define NVREG_IRQ_RX_ALL (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED)
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#define NVREG_IRQ_OTHER (NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR)
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NvRegUnknownSetupReg6 = 0x008,
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#define NVREG_UNKSETUP6_VAL 3
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/*
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* NVREG_POLL_DEFAULT is the interval length of the timer source on the nic
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* NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
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*/
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NvRegPollingInterval = 0x00c,
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#define NVREG_POLL_DEFAULT_THROUGHPUT 65535 /* backup tx cleanup if loop max reached */
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#define NVREG_POLL_DEFAULT_CPU 13
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NvRegMSIMap0 = 0x020,
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NvRegMSIMap1 = 0x024,
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NvRegMSIIrqMask = 0x030,
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#define NVREG_MSI_VECTOR_0_ENABLED 0x01
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NvRegMisc1 = 0x080,
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#define NVREG_MISC1_PAUSE_TX 0x01
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#define NVREG_MISC1_HD 0x02
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#define NVREG_MISC1_FORCE 0x3b0f3c
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NvRegMacReset = 0x34,
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#define NVREG_MAC_RESET_ASSERT 0x0F3
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NvRegTransmitterControl = 0x084,
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#define NVREG_XMITCTL_START 0x01
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#define NVREG_XMITCTL_MGMT_ST 0x40000000
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#define NVREG_XMITCTL_SYNC_MASK 0x000f0000
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#define NVREG_XMITCTL_SYNC_NOT_READY 0x0
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#define NVREG_XMITCTL_SYNC_PHY_INIT 0x00040000
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#define NVREG_XMITCTL_MGMT_SEMA_MASK 0x00000f00
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#define NVREG_XMITCTL_MGMT_SEMA_FREE 0x0
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#define NVREG_XMITCTL_HOST_SEMA_MASK 0x0000f000
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#define NVREG_XMITCTL_HOST_SEMA_ACQ 0x0000f000
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#define NVREG_XMITCTL_HOST_LOADED 0x00004000
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#define NVREG_XMITCTL_TX_PATH_EN 0x01000000
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#define NVREG_XMITCTL_DATA_START 0x00100000
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#define NVREG_XMITCTL_DATA_READY 0x00010000
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#define NVREG_XMITCTL_DATA_ERROR 0x00020000
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NvRegTransmitterStatus = 0x088,
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#define NVREG_XMITSTAT_BUSY 0x01
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NvRegPacketFilterFlags = 0x8c,
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#define NVREG_PFF_PAUSE_RX 0x08
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#define NVREG_PFF_ALWAYS 0x7F0000
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#define NVREG_PFF_PROMISC 0x80
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#define NVREG_PFF_MYADDR 0x20
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#define NVREG_PFF_LOOPBACK 0x10
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NvRegOffloadConfig = 0x90,
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#define NVREG_OFFLOAD_HOMEPHY 0x601
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#define NVREG_OFFLOAD_NORMAL RX_NIC_BUFSIZE
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NvRegReceiverControl = 0x094,
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#define NVREG_RCVCTL_START 0x01
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#define NVREG_RCVCTL_RX_PATH_EN 0x01000000
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NvRegReceiverStatus = 0x98,
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#define NVREG_RCVSTAT_BUSY 0x01
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NvRegSlotTime = 0x9c,
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#define NVREG_SLOTTIME_LEGBF_ENABLED 0x80000000
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#define NVREG_SLOTTIME_10_100_FULL 0x00007f00
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#define NVREG_SLOTTIME_1000_FULL 0x0003ff00
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#define NVREG_SLOTTIME_HALF 0x0000ff00
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#define NVREG_SLOTTIME_DEFAULT 0x00007f00
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#define NVREG_SLOTTIME_MASK 0x000000ff
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NvRegTxDeferral = 0xA0,
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#define NVREG_TX_DEFERRAL_DEFAULT 0x15050f
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#define NVREG_TX_DEFERRAL_RGMII_10_100 0x16070f
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#define NVREG_TX_DEFERRAL_RGMII_1000 0x14050f
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#define NVREG_TX_DEFERRAL_RGMII_STRETCH_10 0x16190f
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#define NVREG_TX_DEFERRAL_RGMII_STRETCH_100 0x16300f
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#define NVREG_TX_DEFERRAL_MII_STRETCH 0x152000
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NvRegRxDeferral = 0xA4,
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#define NVREG_RX_DEFERRAL_DEFAULT 0x16
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NvRegMacAddrA = 0xA8,
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NvRegMacAddrB = 0xAC,
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NvRegMulticastAddrA = 0xB0,
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#define NVREG_MCASTADDRA_FORCE 0x01
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NvRegMulticastAddrB = 0xB4,
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NvRegMulticastMaskA = 0xB8,
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#define NVREG_MCASTMASKA_NONE 0xffffffff
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NvRegMulticastMaskB = 0xBC,
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#define NVREG_MCASTMASKB_NONE 0xffff
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NvRegPhyInterface = 0xC0,
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#define PHY_RGMII 0x10000000
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NvRegBackOffControl = 0xC4,
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#define NVREG_BKOFFCTRL_DEFAULT 0x70000000
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#define NVREG_BKOFFCTRL_SEED_MASK 0x000003ff
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#define NVREG_BKOFFCTRL_SELECT 24
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#define NVREG_BKOFFCTRL_GEAR 12
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NvRegTxRingPhysAddr = 0x100,
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NvRegRxRingPhysAddr = 0x104,
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NvRegRingSizes = 0x108,
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#define NVREG_RINGSZ_TXSHIFT 0
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#define NVREG_RINGSZ_RXSHIFT 16
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NvRegTransmitPoll = 0x10c,
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#define NVREG_TRANSMITPOLL_MAC_ADDR_REV 0x00008000
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NvRegLinkSpeed = 0x110,
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#define NVREG_LINKSPEED_FORCE 0x10000
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#define NVREG_LINKSPEED_10 1000
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#define NVREG_LINKSPEED_100 100
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#define NVREG_LINKSPEED_1000 50
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#define NVREG_LINKSPEED_MASK (0xFFF)
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NvRegUnknownSetupReg5 = 0x130,
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#define NVREG_UNKSETUP5_BIT31 (1<<31)
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NvRegTxWatermark = 0x13c,
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#define NVREG_TX_WM_DESC1_DEFAULT 0x0200010
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#define NVREG_TX_WM_DESC2_3_DEFAULT 0x1e08000
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#define NVREG_TX_WM_DESC2_3_1000 0xfe08000
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NvRegTxRxControl = 0x144,
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#define NVREG_TXRXCTL_KICK 0x0001
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#define NVREG_TXRXCTL_BIT1 0x0002
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#define NVREG_TXRXCTL_BIT2 0x0004
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#define NVREG_TXRXCTL_IDLE 0x0008
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#define NVREG_TXRXCTL_RESET 0x0010
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#define NVREG_TXRXCTL_RXCHECK 0x0400
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#define NVREG_TXRXCTL_DESC_1 0
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#define NVREG_TXRXCTL_DESC_2 0x002100
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#define NVREG_TXRXCTL_DESC_3 0xc02200
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#define NVREG_TXRXCTL_VLANSTRIP 0x00040
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#define NVREG_TXRXCTL_VLANINS 0x00080
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NvRegTxRingPhysAddrHigh = 0x148,
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NvRegRxRingPhysAddrHigh = 0x14C,
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NvRegTxPauseFrame = 0x170,
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#define NVREG_TX_PAUSEFRAME_DISABLE 0x0fff0080
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#define NVREG_TX_PAUSEFRAME_ENABLE_V1 0x01800010
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#define NVREG_TX_PAUSEFRAME_ENABLE_V2 0x056003f0
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#define NVREG_TX_PAUSEFRAME_ENABLE_V3 0x09f00880
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NvRegTxPauseFrameLimit = 0x174,
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#define NVREG_TX_PAUSEFRAMELIMIT_ENABLE 0x00010000
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NvRegMIIStatus = 0x180,
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#define NVREG_MIISTAT_ERROR 0x0001
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#define NVREG_MIISTAT_LINKCHANGE 0x0008
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#define NVREG_MIISTAT_MASK_RW 0x0007
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#define NVREG_MIISTAT_MASK_ALL 0x000f
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NvRegMIIMask = 0x184,
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#define NVREG_MII_LINKCHANGE 0x0008
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NvRegAdapterControl = 0x188,
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#define NVREG_ADAPTCTL_START 0x02
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#define NVREG_ADAPTCTL_LINKUP 0x04
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#define NVREG_ADAPTCTL_PHYVALID 0x40000
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#define NVREG_ADAPTCTL_RUNNING 0x100000
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#define NVREG_ADAPTCTL_PHYSHIFT 24
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NvRegMIISpeed = 0x18c,
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#define NVREG_MIISPEED_BIT8 (1<<8)
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#define NVREG_MIIDELAY 5
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NvRegMIIControl = 0x190,
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#define NVREG_MIICTL_INUSE 0x08000
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#define NVREG_MIICTL_WRITE 0x00400
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#define NVREG_MIICTL_ADDRSHIFT 5
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NvRegMIIData = 0x194,
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NvRegTxUnicast = 0x1a0,
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NvRegTxMulticast = 0x1a4,
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NvRegTxBroadcast = 0x1a8,
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NvRegWakeUpFlags = 0x200,
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#define NVREG_WAKEUPFLAGS_VAL 0x7770
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#define NVREG_WAKEUPFLAGS_BUSYSHIFT 24
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#define NVREG_WAKEUPFLAGS_ENABLESHIFT 16
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#define NVREG_WAKEUPFLAGS_D3SHIFT 12
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#define NVREG_WAKEUPFLAGS_D2SHIFT 8
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#define NVREG_WAKEUPFLAGS_D1SHIFT 4
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#define NVREG_WAKEUPFLAGS_D0SHIFT 0
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#define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT 0x01
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#define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT 0x02
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#define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04
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#define NVREG_WAKEUPFLAGS_ENABLE 0x1111
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NvRegMgmtUnitGetVersion = 0x204,
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#define NVREG_MGMTUNITGETVERSION 0x01
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NvRegMgmtUnitVersion = 0x208,
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#define NVREG_MGMTUNITVERSION 0x08
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NvRegPowerCap = 0x268,
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#define NVREG_POWERCAP_D3SUPP (1<<30)
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#define NVREG_POWERCAP_D2SUPP (1<<26)
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#define NVREG_POWERCAP_D1SUPP (1<<25)
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NvRegPowerState = 0x26c,
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#define NVREG_POWERSTATE_POWEREDUP 0x8000
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#define NVREG_POWERSTATE_VALID 0x0100
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#define NVREG_POWERSTATE_MASK 0x0003
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#define NVREG_POWERSTATE_D0 0x0000
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#define NVREG_POWERSTATE_D1 0x0001
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#define NVREG_POWERSTATE_D2 0x0002
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#define NVREG_POWERSTATE_D3 0x0003
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NvRegMgmtUnitControl = 0x278,
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#define NVREG_MGMTUNITCONTROL_INUSE 0x20000
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NvRegTxCnt = 0x280,
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NvRegTxZeroReXmt = 0x284,
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NvRegTxOneReXmt = 0x288,
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NvRegTxManyReXmt = 0x28c,
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NvRegTxLateCol = 0x290,
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NvRegTxUnderflow = 0x294,
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NvRegTxLossCarrier = 0x298,
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NvRegTxExcessDef = 0x29c,
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NvRegTxRetryErr = 0x2a0,
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NvRegRxFrameErr = 0x2a4,
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NvRegRxExtraByte = 0x2a8,
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NvRegRxLateCol = 0x2ac,
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NvRegRxRunt = 0x2b0,
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NvRegRxFrameTooLong = 0x2b4,
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NvRegRxOverflow = 0x2b8,
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NvRegRxFCSErr = 0x2bc,
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NvRegRxFrameAlignErr = 0x2c0,
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NvRegRxLenErr = 0x2c4,
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NvRegRxUnicast = 0x2c8,
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NvRegRxMulticast = 0x2cc,
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NvRegRxBroadcast = 0x2d0,
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NvRegTxDef = 0x2d4,
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NvRegTxFrame = 0x2d8,
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NvRegRxCnt = 0x2dc,
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NvRegTxPause = 0x2e0,
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NvRegRxPause = 0x2e4,
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NvRegRxDropFrame = 0x2e8,
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NvRegVlanControl = 0x300,
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#define NVREG_VLANCONTROL_ENABLE 0x2000
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NvRegMSIXMap0 = 0x3e0,
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NvRegMSIXMap1 = 0x3e4,
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NvRegMSIXIrqStatus = 0x3f0,
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NvRegPowerState2 = 0x600,
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#define NVREG_POWERSTATE2_POWERUP_MASK 0x0F15
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#define NVREG_POWERSTATE2_POWERUP_REV_A3 0x0001
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#define NVREG_POWERSTATE2_PHY_RESET 0x0004
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#define NVREG_POWERSTATE2_GATE_CLOCKS 0x0F00
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};
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/* Big endian: should work, but is untested */
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struct ring_desc {
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__le32 buf;
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__le32 flaglen;
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};
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struct ring_desc_ex {
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__le32 bufhigh;
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__le32 buflow;
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__le32 txvlan;
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__le32 flaglen;
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};
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union ring_type {
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struct ring_desc *orig;
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struct ring_desc_ex *ex;
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};
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#define FLAG_MASK_V1 0xffff0000
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#define FLAG_MASK_V2 0xffffc000
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#define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
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#define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
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#define NV_TX_LASTPACKET (1<<16)
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#define NV_TX_RETRYERROR (1<<19)
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#define NV_TX_RETRYCOUNT_MASK (0xF<<20)
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#define NV_TX_FORCED_INTERRUPT (1<<24)
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#define NV_TX_DEFERRED (1<<26)
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#define NV_TX_CARRIERLOST (1<<27)
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#define NV_TX_LATECOLLISION (1<<28)
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#define NV_TX_UNDERFLOW (1<<29)
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#define NV_TX_ERROR (1<<30)
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#define NV_TX_VALID (1<<31)
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#define NV_TX2_LASTPACKET (1<<29)
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#define NV_TX2_RETRYERROR (1<<18)
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|
#define NV_TX2_RETRYCOUNT_MASK (0xF<<19)
|
|
#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_SUBTRACT1 (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_RX_ERROR_MASK (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4|NV_RX_CRCERR|NV_RX_OVERFLOW|NV_RX_FRAMINGERR)
|
|
|
|
#define NV_RX2_CHECKSUMMASK (0x1C000000)
|
|
#define NV_RX2_CHECKSUM_IP (0x10000000)
|
|
#define NV_RX2_CHECKSUM_IP_TCP (0x14000000)
|
|
#define NV_RX2_CHECKSUM_IP_UDP (0x18000000)
|
|
#define NV_RX2_DESCRIPTORVALID (1<<29)
|
|
#define NV_RX2_SUBTRACT1 (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_RX2_ERROR_MASK (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4|NV_RX2_CRCERR|NV_RX2_OVERFLOW|NV_RX2_FRAMINGERR)
|
|
|
|
#define NV_RX3_VLAN_TAG_PRESENT (1<<16)
|
|
#define NV_RX3_VLAN_TAG_MASK (0x0000FFFF)
|
|
|
|
/* Miscellaneous hardware related defines: */
|
|
#define NV_PCI_REGSZ_VER1 0x270
|
|
#define NV_PCI_REGSZ_VER2 0x2d4
|
|
#define NV_PCI_REGSZ_VER3 0x604
|
|
#define NV_PCI_REGSZ_MAX 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 512
|
|
#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
|
|
|
|
/* 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 PHY_OUI_VITESSE 0x01c1
|
|
#define PHY_OUI_REALTEK 0x0732
|
|
#define PHY_OUI_REALTEK2 0x0020
|
|
#define PHYID1_OUI_MASK 0x03ff
|
|
#define PHYID1_OUI_SHFT 6
|
|
#define PHYID2_OUI_MASK 0xfc00
|
|
#define PHYID2_OUI_SHFT 10
|
|
#define PHYID2_MODEL_MASK 0x03f0
|
|
#define PHY_MODEL_REALTEK_8211 0x0110
|
|
#define PHY_REV_MASK 0x0001
|
|
#define PHY_REV_REALTEK_8211B 0x0000
|
|
#define PHY_REV_REALTEK_8211C 0x0001
|
|
#define PHY_MODEL_REALTEK_8201 0x0200
|
|
#define PHY_MODEL_MARVELL_E3016 0x0220
|
|
#define PHY_MARVELL_E3016_INITMASK 0x0300
|
|
#define PHY_CICADA_INIT1 0x0f000
|
|
#define PHY_CICADA_INIT2 0x0e00
|
|
#define PHY_CICADA_INIT3 0x01000
|
|
#define PHY_CICADA_INIT4 0x0200
|
|
#define PHY_CICADA_INIT5 0x0004
|
|
#define PHY_CICADA_INIT6 0x02000
|
|
#define PHY_VITESSE_INIT_REG1 0x1f
|
|
#define PHY_VITESSE_INIT_REG2 0x10
|
|
#define PHY_VITESSE_INIT_REG3 0x11
|
|
#define PHY_VITESSE_INIT_REG4 0x12
|
|
#define PHY_VITESSE_INIT_MSK1 0xc
|
|
#define PHY_VITESSE_INIT_MSK2 0x0180
|
|
#define PHY_VITESSE_INIT1 0x52b5
|
|
#define PHY_VITESSE_INIT2 0xaf8a
|
|
#define PHY_VITESSE_INIT3 0x8
|
|
#define PHY_VITESSE_INIT4 0x8f8a
|
|
#define PHY_VITESSE_INIT5 0xaf86
|
|
#define PHY_VITESSE_INIT6 0x8f86
|
|
#define PHY_VITESSE_INIT7 0xaf82
|
|
#define PHY_VITESSE_INIT8 0x0100
|
|
#define PHY_VITESSE_INIT9 0x8f82
|
|
#define PHY_VITESSE_INIT10 0x0
|
|
#define PHY_REALTEK_INIT_REG1 0x1f
|
|
#define PHY_REALTEK_INIT_REG2 0x19
|
|
#define PHY_REALTEK_INIT_REG3 0x13
|
|
#define PHY_REALTEK_INIT_REG4 0x14
|
|
#define PHY_REALTEK_INIT_REG5 0x18
|
|
#define PHY_REALTEK_INIT_REG6 0x11
|
|
#define PHY_REALTEK_INIT_REG7 0x01
|
|
#define PHY_REALTEK_INIT1 0x0000
|
|
#define PHY_REALTEK_INIT2 0x8e00
|
|
#define PHY_REALTEK_INIT3 0x0001
|
|
#define PHY_REALTEK_INIT4 0xad17
|
|
#define PHY_REALTEK_INIT5 0xfb54
|
|
#define PHY_REALTEK_INIT6 0xf5c7
|
|
#define PHY_REALTEK_INIT7 0x1000
|
|
#define PHY_REALTEK_INIT8 0x0003
|
|
#define PHY_REALTEK_INIT9 0x0008
|
|
#define PHY_REALTEK_INIT10 0x0005
|
|
#define PHY_REALTEK_INIT11 0x0200
|
|
#define PHY_REALTEK_INIT_MSK1 0x0003
|
|
|
|
#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
|
|
|
|
#define NV_MSI_PRIV_OFFSET 0x68
|
|
#define NV_MSI_PRIV_VALUE 0xffffffff
|
|
|
|
#define NV_RESTART_TX 0x1
|
|
#define NV_RESTART_RX 0x2
|
|
|
|
#define NV_TX_LIMIT_COUNT 16
|
|
|
|
#define NV_DYNAMIC_THRESHOLD 4
|
|
#define NV_DYNAMIC_MAX_QUIET_COUNT 2048
|
|
|
|
/* statistics */
|
|
struct nv_ethtool_str {
|
|
char name[ETH_GSTRING_LEN];
|
|
};
|
|
|
|
static const struct nv_ethtool_str nv_estats_str[] = {
|
|
{ "tx_bytes" }, /* includes Ethernet FCS CRC */
|
|
{ "tx_zero_rexmt" },
|
|
{ "tx_one_rexmt" },
|
|
{ "tx_many_rexmt" },
|
|
{ "tx_late_collision" },
|
|
{ "tx_fifo_errors" },
|
|
{ "tx_carrier_errors" },
|
|
{ "tx_excess_deferral" },
|
|
{ "tx_retry_error" },
|
|
{ "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_packets" },
|
|
{ "rx_errors_total" },
|
|
{ "tx_errors_total" },
|
|
|
|
/* version 2 stats */
|
|
{ "tx_deferral" },
|
|
{ "tx_packets" },
|
|
{ "rx_bytes" }, /* includes Ethernet FCS CRC */
|
|
{ "tx_pause" },
|
|
{ "rx_pause" },
|
|
{ "rx_drop_frame" },
|
|
|
|
/* version 3 stats */
|
|
{ "tx_unicast" },
|
|
{ "tx_multicast" },
|
|
{ "tx_broadcast" }
|
|
};
|
|
|
|
struct nv_ethtool_stats {
|
|
u64 tx_bytes; /* should be ifconfig->tx_bytes + 4*tx_packets */
|
|
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 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_packets; /* should be ifconfig->rx_packets */
|
|
u64 rx_errors_total;
|
|
u64 tx_errors_total;
|
|
|
|
/* version 2 stats */
|
|
u64 tx_deferral;
|
|
u64 tx_packets; /* should be ifconfig->tx_packets */
|
|
u64 rx_bytes; /* should be ifconfig->rx_bytes + 4*rx_packets */
|
|
u64 tx_pause;
|
|
u64 rx_pause;
|
|
u64 rx_drop_frame;
|
|
|
|
/* version 3 stats */
|
|
u64 tx_unicast;
|
|
u64 tx_multicast;
|
|
u64 tx_broadcast;
|
|
};
|
|
|
|
#define NV_DEV_STATISTICS_V3_COUNT (sizeof(struct nv_ethtool_stats)/sizeof(u64))
|
|
#define NV_DEV_STATISTICS_V2_COUNT (NV_DEV_STATISTICS_V3_COUNT - 3)
|
|
#define NV_DEV_STATISTICS_V1_COUNT (NV_DEV_STATISTICS_V2_COUNT - 6)
|
|
|
|
/* 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 }
|
|
};
|
|
|
|
struct nv_skb_map {
|
|
struct sk_buff *skb;
|
|
dma_addr_t dma;
|
|
unsigned int dma_len:31;
|
|
unsigned int dma_single:1;
|
|
struct ring_desc_ex *first_tx_desc;
|
|
struct nv_skb_map *next_tx_ctx;
|
|
};
|
|
|
|
/*
|
|
* SMP locking:
|
|
* All hardware access under netdev_priv(dev)->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 netdev_priv(dev)->lock :-(
|
|
* - set_multicast_list: preparation lockless, relies on netif_tx_lock.
|
|
*
|
|
* Hardware stats updates are protected by hwstats_lock:
|
|
* - updated by nv_do_stats_poll (timer). This is meant to avoid
|
|
* integer wraparound in the NIC stats registers, at low frequency
|
|
* (0.1 Hz)
|
|
* - updated by nv_get_ethtool_stats + nv_get_stats64
|
|
*
|
|
* Software stats are accessed only through 64b synchronization points
|
|
* and are not subject to other synchronization techniques (single
|
|
* update thread on the TX or RX paths).
|
|
*/
|
|
|
|
/* in dev: base, irq */
|
|
struct fe_priv {
|
|
spinlock_t lock;
|
|
|
|
struct net_device *dev;
|
|
struct napi_struct napi;
|
|
|
|
/* hardware stats are updated in syscall and timer */
|
|
spinlock_t hwstats_lock;
|
|
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;
|
|
unsigned int phy_model;
|
|
unsigned int phy_rev;
|
|
u16 gigabit;
|
|
int intr_test;
|
|
int recover_error;
|
|
int quiet_count;
|
|
|
|
/* General data: RO fields */
|
|
dma_addr_t ring_addr;
|
|
struct pci_dev *pci_dev;
|
|
u32 orig_mac[2];
|
|
u32 events;
|
|
u32 irqmask;
|
|
u32 desc_ver;
|
|
u32 txrxctl_bits;
|
|
u32 vlanctl_bits;
|
|
u32 driver_data;
|
|
u32 device_id;
|
|
u32 register_size;
|
|
u32 mac_in_use;
|
|
int mgmt_version;
|
|
int mgmt_sema;
|
|
|
|
void __iomem *base;
|
|
|
|
/* rx specific fields.
|
|
* Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
|
|
*/
|
|
union ring_type get_rx, put_rx, last_rx;
|
|
struct nv_skb_map *get_rx_ctx, *put_rx_ctx;
|
|
struct nv_skb_map *last_rx_ctx;
|
|
struct nv_skb_map *rx_skb;
|
|
|
|
union ring_type rx_ring;
|
|
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;
|
|
|
|
/* RX software stats */
|
|
struct u64_stats_sync swstats_rx_syncp;
|
|
u64 stat_rx_packets;
|
|
u64 stat_rx_bytes; /* not always available in HW */
|
|
u64 stat_rx_missed_errors;
|
|
u64 stat_rx_dropped;
|
|
|
|
/* media detection workaround.
|
|
* Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
|
|
*/
|
|
int need_linktimer;
|
|
unsigned long link_timeout;
|
|
/*
|
|
* tx specific fields.
|
|
*/
|
|
union ring_type get_tx, put_tx, last_tx;
|
|
struct nv_skb_map *get_tx_ctx, *put_tx_ctx;
|
|
struct nv_skb_map *last_tx_ctx;
|
|
struct nv_skb_map *tx_skb;
|
|
|
|
union ring_type tx_ring;
|
|
u32 tx_flags;
|
|
int tx_ring_size;
|
|
int tx_limit;
|
|
u32 tx_pkts_in_progress;
|
|
struct nv_skb_map *tx_change_owner;
|
|
struct nv_skb_map *tx_end_flip;
|
|
int tx_stop;
|
|
|
|
/* TX software stats */
|
|
struct u64_stats_sync swstats_tx_syncp;
|
|
u64 stat_tx_packets; /* not always available in HW */
|
|
u64 stat_tx_bytes;
|
|
u64 stat_tx_dropped;
|
|
|
|
/* msi/msi-x fields */
|
|
u32 msi_flags;
|
|
struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS];
|
|
|
|
/* flow control */
|
|
u32 pause_flags;
|
|
|
|
/* power saved state */
|
|
u32 saved_config_space[NV_PCI_REGSZ_MAX/4];
|
|
|
|
/* for different msi-x irq type */
|
|
char name_rx[IFNAMSIZ + 3]; /* -rx */
|
|
char name_tx[IFNAMSIZ + 3]; /* -tx */
|
|
char name_other[IFNAMSIZ + 6]; /* -other */
|
|
};
|
|
|
|
/*
|
|
* 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 = 4;
|
|
|
|
/*
|
|
* 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,
|
|
NV_OPTIMIZATION_MODE_DYNAMIC
|
|
};
|
|
static int optimization_mode = NV_OPTIMIZATION_MODE_DYNAMIC;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
/*
|
|
* Debug output control for tx_timeout
|
|
*/
|
|
static bool debug_tx_timeout = false;
|
|
|
|
/*
|
|
* Crossover Detection
|
|
* Realtek 8201 phy + some OEM boards do not work properly.
|
|
*/
|
|
enum {
|
|
NV_CROSSOVER_DETECTION_DISABLED,
|
|
NV_CROSSOVER_DETECTION_ENABLED
|
|
};
|
|
static int phy_cross = NV_CROSSOVER_DETECTION_DISABLED;
|
|
|
|
/*
|
|
* Power down phy when interface is down (persists through reboot;
|
|
* older Linux and other OSes may not power it up again)
|
|
*/
|
|
static int phy_power_down;
|
|
|
|
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 bool nv_optimized(struct fe_priv *np)
|
|
{
|
|
if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
|
|
int delay, int delaymax)
|
|
{
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
|
|
pci_push(base);
|
|
do {
|
|
udelay(delay);
|
|
delaymax -= delay;
|
|
if (delaymax < 0)
|
|
return 1;
|
|
} while ((readl(base + offset) & mask) != target);
|
|
return 0;
|
|
}
|
|
|
|
#define NV_SETUP_RX_RING 0x01
|
|
#define NV_SETUP_TX_RING 0x02
|
|
|
|
static inline u32 dma_low(dma_addr_t addr)
|
|
{
|
|
return addr;
|
|
}
|
|
|
|
static inline u32 dma_high(dma_addr_t addr)
|
|
{
|
|
return addr>>31>>1; /* 0 if 32bit, shift down by 32 if 64bit */
|
|
}
|
|
|
|
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 (!nv_optimized(np)) {
|
|
if (rxtx_flags & NV_SETUP_RX_RING)
|
|
writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
|
|
if (rxtx_flags & NV_SETUP_TX_RING)
|
|
writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
|
|
} else {
|
|
if (rxtx_flags & NV_SETUP_RX_RING) {
|
|
writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
|
|
writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh);
|
|
}
|
|
if (rxtx_flags & NV_SETUP_TX_RING) {
|
|
writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
|
|
writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void free_rings(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = get_nvpriv(dev);
|
|
|
|
if (!nv_optimized(np)) {
|
|
if (np->rx_ring.orig)
|
|
dma_free_coherent(&np->pci_dev->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)
|
|
dma_free_coherent(&np->pci_dev->dev,
|
|
sizeof(struct ring_desc_ex) *
|
|
(np->rx_ring_size +
|
|
np->tx_ring_size),
|
|
np->rx_ring.ex, np->ring_addr);
|
|
}
|
|
kfree(np->rx_skb);
|
|
kfree(np->tx_skb);
|
|
}
|
|
|
|
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_txrx_gate(struct net_device *dev, bool gate)
|
|
{
|
|
struct fe_priv *np = get_nvpriv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 powerstate;
|
|
|
|
if (!np->mac_in_use &&
|
|
(np->driver_data & DEV_HAS_POWER_CNTRL)) {
|
|
powerstate = readl(base + NvRegPowerState2);
|
|
if (gate)
|
|
powerstate |= NVREG_POWERSTATE2_GATE_CLOCKS;
|
|
else
|
|
powerstate &= ~NVREG_POWERSTATE2_GATE_CLOCKS;
|
|
writel(powerstate, base + NvRegPowerState2);
|
|
}
|
|
}
|
|
|
|
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(np->pci_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(np->pci_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);
|
|
}
|
|
}
|
|
|
|
static void nv_napi_enable(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = get_nvpriv(dev);
|
|
|
|
napi_enable(&np->napi);
|
|
}
|
|
|
|
static void nv_napi_disable(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = get_nvpriv(dev);
|
|
|
|
napi_disable(&np->napi);
|
|
}
|
|
|
|
#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_RW, 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)) {
|
|
retval = -1;
|
|
} else if (value != MII_READ) {
|
|
/* it was a write operation - fewer failures are detectable */
|
|
retval = 0;
|
|
} else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) {
|
|
retval = -1;
|
|
} else {
|
|
retval = readl(base + NvRegMIIData);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int phy_reset(struct net_device *dev, u32 bmcr_setup)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 miicontrol;
|
|
unsigned int tries = 0;
|
|
|
|
miicontrol = BMCR_RESET | bmcr_setup;
|
|
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) {
|
|
usleep_range(10000, 20000);
|
|
miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
/* FIXME: 100 tries seem excessive */
|
|
if (tries++ > 100)
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int init_realtek_8211b(struct net_device *dev, struct fe_priv *np)
|
|
{
|
|
static const struct {
|
|
int reg;
|
|
int init;
|
|
} ri[] = {
|
|
{ PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1 },
|
|
{ PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2 },
|
|
{ PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3 },
|
|
{ PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4 },
|
|
{ PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5 },
|
|
{ PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6 },
|
|
{ PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1 },
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ri); i++) {
|
|
if (mii_rw(dev, np->phyaddr, ri[i].reg, ri[i].init))
|
|
return PHY_ERROR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_realtek_8211c(struct net_device *dev, struct fe_priv *np)
|
|
{
|
|
u32 reg;
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 powerstate = readl(base + NvRegPowerState2);
|
|
|
|
/* need to perform hw phy reset */
|
|
powerstate |= NVREG_POWERSTATE2_PHY_RESET;
|
|
writel(powerstate, base + NvRegPowerState2);
|
|
msleep(25);
|
|
|
|
powerstate &= ~NVREG_POWERSTATE2_PHY_RESET;
|
|
writel(powerstate, base + NvRegPowerState2);
|
|
msleep(25);
|
|
|
|
reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ);
|
|
reg |= PHY_REALTEK_INIT9;
|
|
if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, reg))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT10))
|
|
return PHY_ERROR;
|
|
reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, MII_READ);
|
|
if (!(reg & PHY_REALTEK_INIT11)) {
|
|
reg |= PHY_REALTEK_INIT11;
|
|
if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, reg))
|
|
return PHY_ERROR;
|
|
}
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1))
|
|
return PHY_ERROR;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_realtek_8201(struct net_device *dev, struct fe_priv *np)
|
|
{
|
|
u32 phy_reserved;
|
|
|
|
if (np->driver_data & DEV_NEED_PHY_INIT_FIX) {
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG6, MII_READ);
|
|
phy_reserved |= PHY_REALTEK_INIT7;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG6, phy_reserved))
|
|
return PHY_ERROR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_realtek_8201_cross(struct net_device *dev, struct fe_priv *np)
|
|
{
|
|
u32 phy_reserved;
|
|
|
|
if (phy_cross == NV_CROSSOVER_DETECTION_DISABLED) {
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG2, MII_READ);
|
|
phy_reserved &= ~PHY_REALTEK_INIT_MSK1;
|
|
phy_reserved |= PHY_REALTEK_INIT3;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG2, phy_reserved))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1))
|
|
return PHY_ERROR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_cicada(struct net_device *dev, struct fe_priv *np,
|
|
u32 phyinterface)
|
|
{
|
|
u32 phy_reserved;
|
|
|
|
if (phyinterface & PHY_RGMII) {
|
|
phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
|
|
phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2);
|
|
phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4);
|
|
if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
|
|
phy_reserved |= PHY_CICADA_INIT5;
|
|
if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved))
|
|
return PHY_ERROR;
|
|
}
|
|
phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
|
|
phy_reserved |= PHY_CICADA_INIT6;
|
|
if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved))
|
|
return PHY_ERROR;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_vitesse(struct net_device *dev, struct fe_priv *np)
|
|
{
|
|
u32 phy_reserved;
|
|
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG4, MII_READ);
|
|
if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG3, MII_READ);
|
|
phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
|
|
phy_reserved |= PHY_VITESSE_INIT3;
|
|
if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG4, MII_READ);
|
|
phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
|
|
phy_reserved |= PHY_VITESSE_INIT3;
|
|
if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG3, MII_READ);
|
|
if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG4, MII_READ);
|
|
if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved))
|
|
return PHY_ERROR;
|
|
phy_reserved = mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG3, MII_READ);
|
|
phy_reserved &= ~PHY_VITESSE_INIT_MSK2;
|
|
phy_reserved |= PHY_VITESSE_INIT8;
|
|
if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9))
|
|
return PHY_ERROR;
|
|
if (mii_rw(dev, np->phyaddr,
|
|
PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10))
|
|
return PHY_ERROR;
|
|
|
|
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;
|
|
u32 mii_status, mii_control, mii_control_1000, reg;
|
|
|
|
/* phy errata for E3016 phy */
|
|
if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
|
|
reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
|
|
reg &= ~PHY_MARVELL_E3016_INITMASK;
|
|
if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) {
|
|
netdev_info(dev, "%s: phy write to errata reg failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
}
|
|
if (np->phy_oui == PHY_OUI_REALTEK) {
|
|
if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
|
|
np->phy_rev == PHY_REV_REALTEK_8211B) {
|
|
if (init_realtek_8211b(dev, np)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
|
|
np->phy_rev == PHY_REV_REALTEK_8211C) {
|
|
if (init_realtek_8211c(dev, np)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else if (np->phy_model == PHY_MODEL_REALTEK_8201) {
|
|
if (init_realtek_8201(dev, np)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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)) {
|
|
netdev_info(dev, "%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)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else
|
|
np->gigabit = 0;
|
|
|
|
mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
mii_control |= BMCR_ANENABLE;
|
|
|
|
if (np->phy_oui == PHY_OUI_REALTEK &&
|
|
np->phy_model == PHY_MODEL_REALTEK_8211 &&
|
|
np->phy_rev == PHY_REV_REALTEK_8211C) {
|
|
/* start autoneg since we already performed hw reset above */
|
|
mii_control |= BMCR_ANRESTART;
|
|
if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else {
|
|
/* reset the phy
|
|
* (certain phys need bmcr to be setup with reset)
|
|
*/
|
|
if (phy_reset(dev, mii_control)) {
|
|
netdev_info(dev, "%s: phy reset failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
}
|
|
|
|
/* phy vendor specific configuration */
|
|
if (np->phy_oui == PHY_OUI_CICADA) {
|
|
if (init_cicada(dev, np, phyinterface)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else if (np->phy_oui == PHY_OUI_VITESSE) {
|
|
if (init_vitesse(dev, np)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else if (np->phy_oui == PHY_OUI_REALTEK) {
|
|
if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
|
|
np->phy_rev == PHY_REV_REALTEK_8211B) {
|
|
/* reset could have cleared these out, set them back */
|
|
if (init_realtek_8211b(dev, np)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
} else if (np->phy_model == PHY_MODEL_REALTEK_8201) {
|
|
if (init_realtek_8201(dev, np) ||
|
|
init_realtek_8201_cross(dev, np)) {
|
|
netdev_info(dev, "%s: phy init failed\n",
|
|
pci_name(np->pci_dev));
|
|
return PHY_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* some phys clear out pause advertisement on reset, set it back */
|
|
mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg);
|
|
|
|
/* restart auto negotiation, power down phy */
|
|
mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
|
|
if (phy_power_down)
|
|
mii_control |= BMCR_PDOWN;
|
|
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);
|
|
u32 rx_ctrl = readl(base + NvRegReceiverControl);
|
|
|
|
/* Already running? Stop it. */
|
|
if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) {
|
|
rx_ctrl &= ~NVREG_RCVCTL_START;
|
|
writel(rx_ctrl, base + NvRegReceiverControl);
|
|
pci_push(base);
|
|
}
|
|
writel(np->linkspeed, base + NvRegLinkSpeed);
|
|
pci_push(base);
|
|
rx_ctrl |= NVREG_RCVCTL_START;
|
|
if (np->mac_in_use)
|
|
rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN;
|
|
writel(rx_ctrl, base + NvRegReceiverControl);
|
|
pci_push(base);
|
|
}
|
|
|
|
static void nv_stop_rx(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 rx_ctrl = readl(base + NvRegReceiverControl);
|
|
|
|
if (!np->mac_in_use)
|
|
rx_ctrl &= ~NVREG_RCVCTL_START;
|
|
else
|
|
rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN;
|
|
writel(rx_ctrl, base + NvRegReceiverControl);
|
|
if (reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
|
|
NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX))
|
|
netdev_info(dev, "%s: ReceiverStatus remained busy\n",
|
|
__func__);
|
|
|
|
udelay(NV_RXSTOP_DELAY2);
|
|
if (!np->mac_in_use)
|
|
writel(0, base + NvRegLinkSpeed);
|
|
}
|
|
|
|
static void nv_start_tx(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 tx_ctrl = readl(base + NvRegTransmitterControl);
|
|
|
|
tx_ctrl |= NVREG_XMITCTL_START;
|
|
if (np->mac_in_use)
|
|
tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN;
|
|
writel(tx_ctrl, base + NvRegTransmitterControl);
|
|
pci_push(base);
|
|
}
|
|
|
|
static void nv_stop_tx(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 tx_ctrl = readl(base + NvRegTransmitterControl);
|
|
|
|
if (!np->mac_in_use)
|
|
tx_ctrl &= ~NVREG_XMITCTL_START;
|
|
else
|
|
tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN;
|
|
writel(tx_ctrl, base + NvRegTransmitterControl);
|
|
if (reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
|
|
NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX))
|
|
netdev_info(dev, "%s: TransmitterStatus remained busy\n",
|
|
__func__);
|
|
|
|
udelay(NV_TXSTOP_DELAY2);
|
|
if (!np->mac_in_use)
|
|
writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
|
|
base + NvRegTransmitPoll);
|
|
}
|
|
|
|
static void nv_start_rxtx(struct net_device *dev)
|
|
{
|
|
nv_start_rx(dev);
|
|
nv_start_tx(dev);
|
|
}
|
|
|
|
static void nv_stop_rxtx(struct net_device *dev)
|
|
{
|
|
nv_stop_rx(dev);
|
|
nv_stop_tx(dev);
|
|
}
|
|
|
|
static void nv_txrx_reset(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
|
|
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);
|
|
u32 temp1, temp2, temp3;
|
|
|
|
writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
|
|
pci_push(base);
|
|
|
|
/* save registers since they will be cleared on reset */
|
|
temp1 = readl(base + NvRegMacAddrA);
|
|
temp2 = readl(base + NvRegMacAddrB);
|
|
temp3 = readl(base + NvRegTransmitPoll);
|
|
|
|
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);
|
|
|
|
/* restore saved registers */
|
|
writel(temp1, base + NvRegMacAddrA);
|
|
writel(temp2, base + NvRegMacAddrB);
|
|
writel(temp3, base + NvRegTransmitPoll);
|
|
|
|
writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
|
|
pci_push(base);
|
|
}
|
|
|
|
/* Caller must appropriately lock netdev_priv(dev)->hwstats_lock */
|
|
static void nv_update_stats(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
|
|
/* If it happens that this is run in top-half context, then
|
|
* replace the spin_lock of hwstats_lock with
|
|
* spin_lock_irqsave() in calling functions. */
|
|
WARN_ONCE(in_irq(), "forcedeth: estats spin_lock(_bh) from top-half");
|
|
assert_spin_locked(&np->hwstats_lock);
|
|
|
|
/* query hardware */
|
|
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.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_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;
|
|
np->estats.tx_errors_total =
|
|
np->estats.tx_late_collision +
|
|
np->estats.tx_fifo_errors +
|
|
np->estats.tx_carrier_errors +
|
|
np->estats.tx_excess_deferral +
|
|
np->estats.tx_retry_error;
|
|
|
|
if (np->driver_data & DEV_HAS_STATISTICS_V2) {
|
|
np->estats.tx_deferral += readl(base + NvRegTxDef);
|
|
np->estats.tx_packets += readl(base + NvRegTxFrame);
|
|
np->estats.rx_bytes += readl(base + NvRegRxCnt);
|
|
np->estats.tx_pause += readl(base + NvRegTxPause);
|
|
np->estats.rx_pause += readl(base + NvRegRxPause);
|
|
np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame);
|
|
np->estats.rx_errors_total += np->estats.rx_drop_frame;
|
|
}
|
|
|
|
if (np->driver_data & DEV_HAS_STATISTICS_V3) {
|
|
np->estats.tx_unicast += readl(base + NvRegTxUnicast);
|
|
np->estats.tx_multicast += readl(base + NvRegTxMulticast);
|
|
np->estats.tx_broadcast += readl(base + NvRegTxBroadcast);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* nv_get_stats64: dev->ndo_get_stats64 function
|
|
* Get latest stats value from the nic.
|
|
* Called with read_lock(&dev_base_lock) held for read -
|
|
* only synchronized against unregister_netdevice.
|
|
*/
|
|
static void
|
|
nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage)
|
|
__acquires(&netdev_priv(dev)->hwstats_lock)
|
|
__releases(&netdev_priv(dev)->hwstats_lock)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
unsigned int syncp_start;
|
|
|
|
/*
|
|
* Note: because HW stats are not always available and for
|
|
* consistency reasons, the following ifconfig stats are
|
|
* managed by software: rx_bytes, tx_bytes, rx_packets and
|
|
* tx_packets. The related hardware stats reported by ethtool
|
|
* should be equivalent to these ifconfig stats, with 4
|
|
* additional bytes per packet (Ethernet FCS CRC), except for
|
|
* tx_packets when TSO kicks in.
|
|
*/
|
|
|
|
/* software stats */
|
|
do {
|
|
syncp_start = u64_stats_fetch_begin_irq(&np->swstats_rx_syncp);
|
|
storage->rx_packets = np->stat_rx_packets;
|
|
storage->rx_bytes = np->stat_rx_bytes;
|
|
storage->rx_dropped = np->stat_rx_dropped;
|
|
storage->rx_missed_errors = np->stat_rx_missed_errors;
|
|
} while (u64_stats_fetch_retry_irq(&np->swstats_rx_syncp, syncp_start));
|
|
|
|
do {
|
|
syncp_start = u64_stats_fetch_begin_irq(&np->swstats_tx_syncp);
|
|
storage->tx_packets = np->stat_tx_packets;
|
|
storage->tx_bytes = np->stat_tx_bytes;
|
|
storage->tx_dropped = np->stat_tx_dropped;
|
|
} while (u64_stats_fetch_retry_irq(&np->swstats_tx_syncp, syncp_start));
|
|
|
|
/* If the nic supports hw counters then retrieve latest values */
|
|
if (np->driver_data & DEV_HAS_STATISTICS_V123) {
|
|
spin_lock_bh(&np->hwstats_lock);
|
|
|
|
nv_update_stats(dev);
|
|
|
|
/* generic stats */
|
|
storage->rx_errors = np->estats.rx_errors_total;
|
|
storage->tx_errors = np->estats.tx_errors_total;
|
|
|
|
/* meaningful only when NIC supports stats v3 */
|
|
storage->multicast = np->estats.rx_multicast;
|
|
|
|
/* detailed rx_errors */
|
|
storage->rx_length_errors = np->estats.rx_length_error;
|
|
storage->rx_over_errors = np->estats.rx_over_errors;
|
|
storage->rx_crc_errors = np->estats.rx_crc_errors;
|
|
storage->rx_frame_errors = np->estats.rx_frame_align_error;
|
|
storage->rx_fifo_errors = np->estats.rx_drop_frame;
|
|
|
|
/* detailed tx_errors */
|
|
storage->tx_carrier_errors = np->estats.tx_carrier_errors;
|
|
storage->tx_fifo_errors = np->estats.tx_fifo_errors;
|
|
|
|
spin_unlock_bh(&np->hwstats_lock);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
struct ring_desc *less_rx;
|
|
|
|
less_rx = np->get_rx.orig;
|
|
if (less_rx-- == np->rx_ring.orig)
|
|
less_rx = np->last_rx.orig;
|
|
|
|
while (np->put_rx.orig != less_rx) {
|
|
struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz + NV_RX_ALLOC_PAD);
|
|
if (likely(skb)) {
|
|
np->put_rx_ctx->skb = skb;
|
|
np->put_rx_ctx->dma = dma_map_single(&np->pci_dev->dev,
|
|
skb->data,
|
|
skb_tailroom(skb),
|
|
DMA_FROM_DEVICE);
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
np->put_rx_ctx->dma))) {
|
|
kfree_skb(skb);
|
|
goto packet_dropped;
|
|
}
|
|
np->put_rx_ctx->dma_len = skb_tailroom(skb);
|
|
np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
|
|
wmb();
|
|
np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
|
|
if (unlikely(np->put_rx.orig++ == np->last_rx.orig))
|
|
np->put_rx.orig = np->rx_ring.orig;
|
|
if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
|
|
np->put_rx_ctx = np->rx_skb;
|
|
} else {
|
|
packet_dropped:
|
|
u64_stats_update_begin(&np->swstats_rx_syncp);
|
|
np->stat_rx_dropped++;
|
|
u64_stats_update_end(&np->swstats_rx_syncp);
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int nv_alloc_rx_optimized(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
struct ring_desc_ex *less_rx;
|
|
|
|
less_rx = np->get_rx.ex;
|
|
if (less_rx-- == np->rx_ring.ex)
|
|
less_rx = np->last_rx.ex;
|
|
|
|
while (np->put_rx.ex != less_rx) {
|
|
struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz + NV_RX_ALLOC_PAD);
|
|
if (likely(skb)) {
|
|
np->put_rx_ctx->skb = skb;
|
|
np->put_rx_ctx->dma = dma_map_single(&np->pci_dev->dev,
|
|
skb->data,
|
|
skb_tailroom(skb),
|
|
DMA_FROM_DEVICE);
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
np->put_rx_ctx->dma))) {
|
|
kfree_skb(skb);
|
|
goto packet_dropped;
|
|
}
|
|
np->put_rx_ctx->dma_len = skb_tailroom(skb);
|
|
np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma));
|
|
np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma));
|
|
wmb();
|
|
np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL);
|
|
if (unlikely(np->put_rx.ex++ == np->last_rx.ex))
|
|
np->put_rx.ex = np->rx_ring.ex;
|
|
if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
|
|
np->put_rx_ctx = np->rx_skb;
|
|
} else {
|
|
packet_dropped:
|
|
u64_stats_update_begin(&np->swstats_rx_syncp);
|
|
np->stat_rx_dropped++;
|
|
u64_stats_update_end(&np->swstats_rx_syncp);
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* If rx bufs are exhausted called after 50ms to attempt to refresh */
|
|
static void nv_do_rx_refill(struct timer_list *t)
|
|
{
|
|
struct fe_priv *np = from_timer(np, t, oom_kick);
|
|
|
|
/* Just reschedule NAPI rx processing */
|
|
napi_schedule(&np->napi);
|
|
}
|
|
|
|
static void nv_init_rx(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
int i;
|
|
|
|
np->get_rx = np->rx_ring;
|
|
np->put_rx = np->rx_ring;
|
|
|
|
if (!nv_optimized(np))
|
|
np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1];
|
|
else
|
|
np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1];
|
|
np->get_rx_ctx = np->rx_skb;
|
|
np->put_rx_ctx = np->rx_skb;
|
|
np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1];
|
|
|
|
for (i = 0; i < np->rx_ring_size; i++) {
|
|
if (!nv_optimized(np)) {
|
|
np->rx_ring.orig[i].flaglen = 0;
|
|
np->rx_ring.orig[i].buf = 0;
|
|
} else {
|
|
np->rx_ring.ex[i].flaglen = 0;
|
|
np->rx_ring.ex[i].txvlan = 0;
|
|
np->rx_ring.ex[i].bufhigh = 0;
|
|
np->rx_ring.ex[i].buflow = 0;
|
|
}
|
|
np->rx_skb[i].skb = NULL;
|
|
np->rx_skb[i].dma = 0;
|
|
}
|
|
}
|
|
|
|
static void nv_init_tx(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
int i;
|
|
|
|
np->get_tx = np->tx_ring;
|
|
np->put_tx = np->tx_ring;
|
|
|
|
if (!nv_optimized(np))
|
|
np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1];
|
|
else
|
|
np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1];
|
|
np->get_tx_ctx = np->tx_skb;
|
|
np->put_tx_ctx = np->tx_skb;
|
|
np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1];
|
|
netdev_reset_queue(np->dev);
|
|
np->tx_pkts_in_progress = 0;
|
|
np->tx_change_owner = NULL;
|
|
np->tx_end_flip = NULL;
|
|
np->tx_stop = 0;
|
|
|
|
for (i = 0; i < np->tx_ring_size; i++) {
|
|
if (!nv_optimized(np)) {
|
|
np->tx_ring.orig[i].flaglen = 0;
|
|
np->tx_ring.orig[i].buf = 0;
|
|
} else {
|
|
np->tx_ring.ex[i].flaglen = 0;
|
|
np->tx_ring.ex[i].txvlan = 0;
|
|
np->tx_ring.ex[i].bufhigh = 0;
|
|
np->tx_ring.ex[i].buflow = 0;
|
|
}
|
|
np->tx_skb[i].skb = NULL;
|
|
np->tx_skb[i].dma = 0;
|
|
np->tx_skb[i].dma_len = 0;
|
|
np->tx_skb[i].dma_single = 0;
|
|
np->tx_skb[i].first_tx_desc = NULL;
|
|
np->tx_skb[i].next_tx_ctx = NULL;
|
|
}
|
|
}
|
|
|
|
static int nv_init_ring(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
nv_init_tx(dev);
|
|
nv_init_rx(dev);
|
|
|
|
if (!nv_optimized(np))
|
|
return nv_alloc_rx(dev);
|
|
else
|
|
return nv_alloc_rx_optimized(dev);
|
|
}
|
|
|
|
static void nv_unmap_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb)
|
|
{
|
|
if (tx_skb->dma) {
|
|
if (tx_skb->dma_single)
|
|
dma_unmap_single(&np->pci_dev->dev, tx_skb->dma,
|
|
tx_skb->dma_len,
|
|
DMA_TO_DEVICE);
|
|
else
|
|
dma_unmap_page(&np->pci_dev->dev, tx_skb->dma,
|
|
tx_skb->dma_len,
|
|
DMA_TO_DEVICE);
|
|
tx_skb->dma = 0;
|
|
}
|
|
}
|
|
|
|
static int nv_release_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb)
|
|
{
|
|
nv_unmap_txskb(np, tx_skb);
|
|
if (tx_skb->skb) {
|
|
dev_kfree_skb_any(tx_skb->skb);
|
|
tx_skb->skb = NULL;
|
|
return 1;
|
|
}
|
|
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 (!nv_optimized(np)) {
|
|
np->tx_ring.orig[i].flaglen = 0;
|
|
np->tx_ring.orig[i].buf = 0;
|
|
} else {
|
|
np->tx_ring.ex[i].flaglen = 0;
|
|
np->tx_ring.ex[i].txvlan = 0;
|
|
np->tx_ring.ex[i].bufhigh = 0;
|
|
np->tx_ring.ex[i].buflow = 0;
|
|
}
|
|
if (nv_release_txskb(np, &np->tx_skb[i])) {
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_dropped++;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
}
|
|
np->tx_skb[i].dma = 0;
|
|
np->tx_skb[i].dma_len = 0;
|
|
np->tx_skb[i].dma_single = 0;
|
|
np->tx_skb[i].first_tx_desc = NULL;
|
|
np->tx_skb[i].next_tx_ctx = NULL;
|
|
}
|
|
np->tx_pkts_in_progress = 0;
|
|
np->tx_change_owner = NULL;
|
|
np->tx_end_flip = NULL;
|
|
}
|
|
|
|
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 (!nv_optimized(np)) {
|
|
np->rx_ring.orig[i].flaglen = 0;
|
|
np->rx_ring.orig[i].buf = 0;
|
|
} else {
|
|
np->rx_ring.ex[i].flaglen = 0;
|
|
np->rx_ring.ex[i].txvlan = 0;
|
|
np->rx_ring.ex[i].bufhigh = 0;
|
|
np->rx_ring.ex[i].buflow = 0;
|
|
}
|
|
wmb();
|
|
if (np->rx_skb[i].skb) {
|
|
dma_unmap_single(&np->pci_dev->dev, np->rx_skb[i].dma,
|
|
(skb_end_pointer(np->rx_skb[i].skb) -
|
|
np->rx_skb[i].skb->data),
|
|
DMA_FROM_DEVICE);
|
|
dev_kfree_skb(np->rx_skb[i].skb);
|
|
np->rx_skb[i].skb = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void nv_drain_rxtx(struct net_device *dev)
|
|
{
|
|
nv_drain_tx(dev);
|
|
nv_drain_rx(dev);
|
|
}
|
|
|
|
static inline u32 nv_get_empty_tx_slots(struct fe_priv *np)
|
|
{
|
|
return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size));
|
|
}
|
|
|
|
static void nv_legacybackoff_reseed(struct net_device *dev)
|
|
{
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 reg;
|
|
u32 low;
|
|
int tx_status = 0;
|
|
|
|
reg = readl(base + NvRegSlotTime) & ~NVREG_SLOTTIME_MASK;
|
|
get_random_bytes(&low, sizeof(low));
|
|
reg |= low & NVREG_SLOTTIME_MASK;
|
|
|
|
/* Need to stop tx before change takes effect.
|
|
* Caller has already gained np->lock.
|
|
*/
|
|
tx_status = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START;
|
|
if (tx_status)
|
|
nv_stop_tx(dev);
|
|
nv_stop_rx(dev);
|
|
writel(reg, base + NvRegSlotTime);
|
|
if (tx_status)
|
|
nv_start_tx(dev);
|
|
nv_start_rx(dev);
|
|
}
|
|
|
|
/* Gear Backoff Seeds */
|
|
#define BACKOFF_SEEDSET_ROWS 8
|
|
#define BACKOFF_SEEDSET_LFSRS 15
|
|
|
|
/* Known Good seed sets */
|
|
static const u32 main_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = {
|
|
{145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874},
|
|
{245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 385, 761, 790, 974},
|
|
{145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874},
|
|
{245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 386, 761, 790, 974},
|
|
{266, 265, 276, 585, 397, 208, 345, 355, 365, 376, 385, 396, 771, 700, 984},
|
|
{266, 265, 276, 586, 397, 208, 346, 355, 365, 376, 285, 396, 771, 700, 984},
|
|
{366, 365, 376, 686, 497, 308, 447, 455, 466, 476, 485, 496, 871, 800, 84},
|
|
{466, 465, 476, 786, 597, 408, 547, 555, 566, 576, 585, 597, 971, 900, 184} };
|
|
|
|
static const u32 gear_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = {
|
|
{251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295},
|
|
{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
|
|
{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 397},
|
|
{251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295},
|
|
{251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295},
|
|
{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
|
|
{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
|
|
{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395} };
|
|
|
|
static void nv_gear_backoff_reseed(struct net_device *dev)
|
|
{
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 miniseed1, miniseed2, miniseed2_reversed, miniseed3, miniseed3_reversed;
|
|
u32 temp, seedset, combinedSeed;
|
|
int i;
|
|
|
|
/* Setup seed for free running LFSR */
|
|
/* We are going to read the time stamp counter 3 times
|
|
and swizzle bits around to increase randomness */
|
|
get_random_bytes(&miniseed1, sizeof(miniseed1));
|
|
miniseed1 &= 0x0fff;
|
|
if (miniseed1 == 0)
|
|
miniseed1 = 0xabc;
|
|
|
|
get_random_bytes(&miniseed2, sizeof(miniseed2));
|
|
miniseed2 &= 0x0fff;
|
|
if (miniseed2 == 0)
|
|
miniseed2 = 0xabc;
|
|
miniseed2_reversed =
|
|
((miniseed2 & 0xF00) >> 8) |
|
|
(miniseed2 & 0x0F0) |
|
|
((miniseed2 & 0x00F) << 8);
|
|
|
|
get_random_bytes(&miniseed3, sizeof(miniseed3));
|
|
miniseed3 &= 0x0fff;
|
|
if (miniseed3 == 0)
|
|
miniseed3 = 0xabc;
|
|
miniseed3_reversed =
|
|
((miniseed3 & 0xF00) >> 8) |
|
|
(miniseed3 & 0x0F0) |
|
|
((miniseed3 & 0x00F) << 8);
|
|
|
|
combinedSeed = ((miniseed1 ^ miniseed2_reversed) << 12) |
|
|
(miniseed2 ^ miniseed3_reversed);
|
|
|
|
/* Seeds can not be zero */
|
|
if ((combinedSeed & NVREG_BKOFFCTRL_SEED_MASK) == 0)
|
|
combinedSeed |= 0x08;
|
|
if ((combinedSeed & (NVREG_BKOFFCTRL_SEED_MASK << NVREG_BKOFFCTRL_GEAR)) == 0)
|
|
combinedSeed |= 0x8000;
|
|
|
|
/* No need to disable tx here */
|
|
temp = NVREG_BKOFFCTRL_DEFAULT | (0 << NVREG_BKOFFCTRL_SELECT);
|
|
temp |= combinedSeed & NVREG_BKOFFCTRL_SEED_MASK;
|
|
temp |= combinedSeed >> NVREG_BKOFFCTRL_GEAR;
|
|
writel(temp, base + NvRegBackOffControl);
|
|
|
|
/* Setup seeds for all gear LFSRs. */
|
|
get_random_bytes(&seedset, sizeof(seedset));
|
|
seedset = seedset % BACKOFF_SEEDSET_ROWS;
|
|
for (i = 1; i <= BACKOFF_SEEDSET_LFSRS; i++) {
|
|
temp = NVREG_BKOFFCTRL_DEFAULT | (i << NVREG_BKOFFCTRL_SELECT);
|
|
temp |= main_seedset[seedset][i-1] & 0x3ff;
|
|
temp |= ((gear_seedset[seedset][i-1] & 0x3ff) << NVREG_BKOFFCTRL_GEAR);
|
|
writel(temp, base + NvRegBackOffControl);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* nv_start_xmit: dev->hard_start_xmit function
|
|
* Called with netif_tx_lock held.
|
|
*/
|
|
static netdev_tx_t 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 i;
|
|
u32 offset = 0;
|
|
u32 bcnt;
|
|
u32 size = skb_headlen(skb);
|
|
u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
|
|
u32 empty_slots;
|
|
struct ring_desc *put_tx;
|
|
struct ring_desc *start_tx;
|
|
struct ring_desc *prev_tx;
|
|
struct nv_skb_map *prev_tx_ctx;
|
|
struct nv_skb_map *tmp_tx_ctx = NULL, *start_tx_ctx = NULL;
|
|
unsigned long flags;
|
|
|
|
/* add fragments to entries count */
|
|
for (i = 0; i < fragments; i++) {
|
|
u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
|
|
|
|
entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) +
|
|
((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
|
|
}
|
|
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
empty_slots = nv_get_empty_tx_slots(np);
|
|
if (unlikely(empty_slots <= entries)) {
|
|
netif_stop_queue(dev);
|
|
np->tx_stop = 1;
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
start_tx = put_tx = np->put_tx.orig;
|
|
|
|
/* setup the header buffer */
|
|
do {
|
|
bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
|
|
np->put_tx_ctx->dma = dma_map_single(&np->pci_dev->dev,
|
|
skb->data + offset, bcnt,
|
|
DMA_TO_DEVICE);
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
np->put_tx_ctx->dma))) {
|
|
/* on DMA mapping error - drop the packet */
|
|
dev_kfree_skb_any(skb);
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_dropped++;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
np->put_tx_ctx->dma_len = bcnt;
|
|
np->put_tx_ctx->dma_single = 1;
|
|
put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
|
|
put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
|
|
|
|
tx_flags = np->tx_flags;
|
|
offset += bcnt;
|
|
size -= bcnt;
|
|
if (unlikely(put_tx++ == np->last_tx.orig))
|
|
put_tx = np->tx_ring.orig;
|
|
if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
|
|
np->put_tx_ctx = np->tx_skb;
|
|
} while (size);
|
|
|
|
/* setup the fragments */
|
|
for (i = 0; i < fragments; i++) {
|
|
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
|
|
u32 frag_size = skb_frag_size(frag);
|
|
offset = 0;
|
|
|
|
do {
|
|
if (!start_tx_ctx)
|
|
start_tx_ctx = tmp_tx_ctx = np->put_tx_ctx;
|
|
|
|
bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size;
|
|
np->put_tx_ctx->dma = skb_frag_dma_map(
|
|
&np->pci_dev->dev,
|
|
frag, offset,
|
|
bcnt,
|
|
DMA_TO_DEVICE);
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
np->put_tx_ctx->dma))) {
|
|
|
|
/* Unwind the mapped fragments */
|
|
do {
|
|
nv_unmap_txskb(np, start_tx_ctx);
|
|
if (unlikely(tmp_tx_ctx++ == np->last_tx_ctx))
|
|
tmp_tx_ctx = np->tx_skb;
|
|
} while (tmp_tx_ctx != np->put_tx_ctx);
|
|
dev_kfree_skb_any(skb);
|
|
np->put_tx_ctx = start_tx_ctx;
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_dropped++;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
np->put_tx_ctx->dma_len = bcnt;
|
|
np->put_tx_ctx->dma_single = 0;
|
|
put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
|
|
put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
|
|
|
|
offset += bcnt;
|
|
frag_size -= bcnt;
|
|
if (unlikely(put_tx++ == np->last_tx.orig))
|
|
put_tx = np->tx_ring.orig;
|
|
if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
|
|
np->put_tx_ctx = np->tx_skb;
|
|
} while (frag_size);
|
|
}
|
|
|
|
if (unlikely(put_tx == np->tx_ring.orig))
|
|
prev_tx = np->last_tx.orig;
|
|
else
|
|
prev_tx = put_tx - 1;
|
|
|
|
if (unlikely(np->put_tx_ctx == np->tx_skb))
|
|
prev_tx_ctx = np->last_tx_ctx;
|
|
else
|
|
prev_tx_ctx = np->put_tx_ctx - 1;
|
|
|
|
/* set last fragment flag */
|
|
prev_tx->flaglen |= cpu_to_le32(tx_flags_extra);
|
|
|
|
/* save skb in this slot's context area */
|
|
prev_tx_ctx->skb = skb;
|
|
|
|
if (skb_is_gso(skb))
|
|
tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
|
|
else
|
|
tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
|
|
NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
|
|
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
|
|
/* set tx flags */
|
|
start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
|
|
|
|
netdev_sent_queue(np->dev, skb->len);
|
|
|
|
skb_tx_timestamp(skb);
|
|
|
|
np->put_tx.orig = put_tx;
|
|
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb,
|
|
struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 tx_flags = 0;
|
|
u32 tx_flags_extra;
|
|
unsigned int fragments = skb_shinfo(skb)->nr_frags;
|
|
unsigned int i;
|
|
u32 offset = 0;
|
|
u32 bcnt;
|
|
u32 size = skb_headlen(skb);
|
|
u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
|
|
u32 empty_slots;
|
|
struct ring_desc_ex *put_tx;
|
|
struct ring_desc_ex *start_tx;
|
|
struct ring_desc_ex *prev_tx;
|
|
struct nv_skb_map *prev_tx_ctx;
|
|
struct nv_skb_map *start_tx_ctx = NULL;
|
|
struct nv_skb_map *tmp_tx_ctx = NULL;
|
|
unsigned long flags;
|
|
|
|
/* add fragments to entries count */
|
|
for (i = 0; i < fragments; i++) {
|
|
u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
|
|
|
|
entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) +
|
|
((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
|
|
}
|
|
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
empty_slots = nv_get_empty_tx_slots(np);
|
|
if (unlikely(empty_slots <= entries)) {
|
|
netif_stop_queue(dev);
|
|
np->tx_stop = 1;
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
start_tx = put_tx = np->put_tx.ex;
|
|
start_tx_ctx = np->put_tx_ctx;
|
|
|
|
/* setup the header buffer */
|
|
do {
|
|
bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
|
|
np->put_tx_ctx->dma = dma_map_single(&np->pci_dev->dev,
|
|
skb->data + offset, bcnt,
|
|
DMA_TO_DEVICE);
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
np->put_tx_ctx->dma))) {
|
|
/* on DMA mapping error - drop the packet */
|
|
dev_kfree_skb_any(skb);
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_dropped++;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
np->put_tx_ctx->dma_len = bcnt;
|
|
np->put_tx_ctx->dma_single = 1;
|
|
put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
|
|
put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
|
|
put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
|
|
|
|
tx_flags = NV_TX2_VALID;
|
|
offset += bcnt;
|
|
size -= bcnt;
|
|
if (unlikely(put_tx++ == np->last_tx.ex))
|
|
put_tx = np->tx_ring.ex;
|
|
if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
|
|
np->put_tx_ctx = np->tx_skb;
|
|
} while (size);
|
|
|
|
/* setup the fragments */
|
|
for (i = 0; i < fragments; i++) {
|
|
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
|
|
u32 frag_size = skb_frag_size(frag);
|
|
offset = 0;
|
|
|
|
do {
|
|
bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size;
|
|
if (!start_tx_ctx)
|
|
start_tx_ctx = tmp_tx_ctx = np->put_tx_ctx;
|
|
np->put_tx_ctx->dma = skb_frag_dma_map(
|
|
&np->pci_dev->dev,
|
|
frag, offset,
|
|
bcnt,
|
|
DMA_TO_DEVICE);
|
|
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
np->put_tx_ctx->dma))) {
|
|
|
|
/* Unwind the mapped fragments */
|
|
do {
|
|
nv_unmap_txskb(np, start_tx_ctx);
|
|
if (unlikely(tmp_tx_ctx++ == np->last_tx_ctx))
|
|
tmp_tx_ctx = np->tx_skb;
|
|
} while (tmp_tx_ctx != np->put_tx_ctx);
|
|
dev_kfree_skb_any(skb);
|
|
np->put_tx_ctx = start_tx_ctx;
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_dropped++;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
np->put_tx_ctx->dma_len = bcnt;
|
|
np->put_tx_ctx->dma_single = 0;
|
|
put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
|
|
put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
|
|
put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
|
|
|
|
offset += bcnt;
|
|
frag_size -= bcnt;
|
|
if (unlikely(put_tx++ == np->last_tx.ex))
|
|
put_tx = np->tx_ring.ex;
|
|
if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
|
|
np->put_tx_ctx = np->tx_skb;
|
|
} while (frag_size);
|
|
}
|
|
|
|
if (unlikely(put_tx == np->tx_ring.ex))
|
|
prev_tx = np->last_tx.ex;
|
|
else
|
|
prev_tx = put_tx - 1;
|
|
|
|
if (unlikely(np->put_tx_ctx == np->tx_skb))
|
|
prev_tx_ctx = np->last_tx_ctx;
|
|
else
|
|
prev_tx_ctx = np->put_tx_ctx - 1;
|
|
|
|
/* set last fragment flag */
|
|
prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET);
|
|
|
|
/* save skb in this slot's context area */
|
|
prev_tx_ctx->skb = skb;
|
|
|
|
if (skb_is_gso(skb))
|
|
tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
|
|
else
|
|
tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
|
|
NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
|
|
|
|
/* vlan tag */
|
|
if (skb_vlan_tag_present(skb))
|
|
start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT |
|
|
skb_vlan_tag_get(skb));
|
|
else
|
|
start_tx->txvlan = 0;
|
|
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
|
|
if (np->tx_limit) {
|
|
/* Limit the number of outstanding tx. Setup all fragments, but
|
|
* do not set the VALID bit on the first descriptor. Save a pointer
|
|
* to that descriptor and also for next skb_map element.
|
|
*/
|
|
|
|
if (np->tx_pkts_in_progress == NV_TX_LIMIT_COUNT) {
|
|
if (!np->tx_change_owner)
|
|
np->tx_change_owner = start_tx_ctx;
|
|
|
|
/* remove VALID bit */
|
|
tx_flags &= ~NV_TX2_VALID;
|
|
start_tx_ctx->first_tx_desc = start_tx;
|
|
start_tx_ctx->next_tx_ctx = np->put_tx_ctx;
|
|
np->tx_end_flip = np->put_tx_ctx;
|
|
} else {
|
|
np->tx_pkts_in_progress++;
|
|
}
|
|
}
|
|
|
|
/* set tx flags */
|
|
start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
|
|
|
|
netdev_sent_queue(np->dev, skb->len);
|
|
|
|
skb_tx_timestamp(skb);
|
|
|
|
np->put_tx.ex = put_tx;
|
|
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static inline void nv_tx_flip_ownership(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
np->tx_pkts_in_progress--;
|
|
if (np->tx_change_owner) {
|
|
np->tx_change_owner->first_tx_desc->flaglen |=
|
|
cpu_to_le32(NV_TX2_VALID);
|
|
np->tx_pkts_in_progress++;
|
|
|
|
np->tx_change_owner = np->tx_change_owner->next_tx_ctx;
|
|
if (np->tx_change_owner == np->tx_end_flip)
|
|
np->tx_change_owner = NULL;
|
|
|
|
writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* nv_tx_done: check for completed packets, release the skbs.
|
|
*
|
|
* Caller must own np->lock.
|
|
*/
|
|
static int nv_tx_done(struct net_device *dev, int limit)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 flags;
|
|
int tx_work = 0;
|
|
struct ring_desc *orig_get_tx = np->get_tx.orig;
|
|
unsigned int bytes_compl = 0;
|
|
|
|
while ((np->get_tx.orig != np->put_tx.orig) &&
|
|
!((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID) &&
|
|
(tx_work < limit)) {
|
|
|
|
nv_unmap_txskb(np, np->get_tx_ctx);
|
|
|
|
if (np->desc_ver == DESC_VER_1) {
|
|
if (flags & NV_TX_LASTPACKET) {
|
|
if (unlikely(flags & NV_TX_ERROR)) {
|
|
if ((flags & NV_TX_RETRYERROR)
|
|
&& !(flags & NV_TX_RETRYCOUNT_MASK))
|
|
nv_legacybackoff_reseed(dev);
|
|
} else {
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_packets++;
|
|
np->stat_tx_bytes += np->get_tx_ctx->skb->len;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
}
|
|
bytes_compl += np->get_tx_ctx->skb->len;
|
|
dev_kfree_skb_any(np->get_tx_ctx->skb);
|
|
np->get_tx_ctx->skb = NULL;
|
|
tx_work++;
|
|
}
|
|
} else {
|
|
if (flags & NV_TX2_LASTPACKET) {
|
|
if (unlikely(flags & NV_TX2_ERROR)) {
|
|
if ((flags & NV_TX2_RETRYERROR)
|
|
&& !(flags & NV_TX2_RETRYCOUNT_MASK))
|
|
nv_legacybackoff_reseed(dev);
|
|
} else {
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_packets++;
|
|
np->stat_tx_bytes += np->get_tx_ctx->skb->len;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
}
|
|
bytes_compl += np->get_tx_ctx->skb->len;
|
|
dev_kfree_skb_any(np->get_tx_ctx->skb);
|
|
np->get_tx_ctx->skb = NULL;
|
|
tx_work++;
|
|
}
|
|
}
|
|
if (unlikely(np->get_tx.orig++ == np->last_tx.orig))
|
|
np->get_tx.orig = np->tx_ring.orig;
|
|
if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
|
|
np->get_tx_ctx = np->tx_skb;
|
|
}
|
|
|
|
netdev_completed_queue(np->dev, tx_work, bytes_compl);
|
|
|
|
if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) {
|
|
np->tx_stop = 0;
|
|
netif_wake_queue(dev);
|
|
}
|
|
return tx_work;
|
|
}
|
|
|
|
static int nv_tx_done_optimized(struct net_device *dev, int limit)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 flags;
|
|
int tx_work = 0;
|
|
struct ring_desc_ex *orig_get_tx = np->get_tx.ex;
|
|
unsigned long bytes_cleaned = 0;
|
|
|
|
while ((np->get_tx.ex != np->put_tx.ex) &&
|
|
!((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX2_VALID) &&
|
|
(tx_work < limit)) {
|
|
|
|
nv_unmap_txskb(np, np->get_tx_ctx);
|
|
|
|
if (flags & NV_TX2_LASTPACKET) {
|
|
if (unlikely(flags & NV_TX2_ERROR)) {
|
|
if ((flags & NV_TX2_RETRYERROR)
|
|
&& !(flags & NV_TX2_RETRYCOUNT_MASK)) {
|
|
if (np->driver_data & DEV_HAS_GEAR_MODE)
|
|
nv_gear_backoff_reseed(dev);
|
|
else
|
|
nv_legacybackoff_reseed(dev);
|
|
}
|
|
} else {
|
|
u64_stats_update_begin(&np->swstats_tx_syncp);
|
|
np->stat_tx_packets++;
|
|
np->stat_tx_bytes += np->get_tx_ctx->skb->len;
|
|
u64_stats_update_end(&np->swstats_tx_syncp);
|
|
}
|
|
|
|
bytes_cleaned += np->get_tx_ctx->skb->len;
|
|
dev_kfree_skb_any(np->get_tx_ctx->skb);
|
|
np->get_tx_ctx->skb = NULL;
|
|
tx_work++;
|
|
|
|
if (np->tx_limit)
|
|
nv_tx_flip_ownership(dev);
|
|
}
|
|
|
|
if (unlikely(np->get_tx.ex++ == np->last_tx.ex))
|
|
np->get_tx.ex = np->tx_ring.ex;
|
|
if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
|
|
np->get_tx_ctx = np->tx_skb;
|
|
}
|
|
|
|
netdev_completed_queue(np->dev, tx_work, bytes_cleaned);
|
|
|
|
if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) {
|
|
np->tx_stop = 0;
|
|
netif_wake_queue(dev);
|
|
}
|
|
return tx_work;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
union ring_type put_tx;
|
|
int saved_tx_limit;
|
|
|
|
if (np->msi_flags & NV_MSI_X_ENABLED)
|
|
status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
|
|
else
|
|
status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
|
|
|
|
netdev_warn(dev, "Got tx_timeout. irq status: %08x\n", status);
|
|
|
|
if (unlikely(debug_tx_timeout)) {
|
|
int i;
|
|
|
|
netdev_info(dev, "Ring at %lx\n", (unsigned long)np->ring_addr);
|
|
netdev_info(dev, "Dumping tx registers\n");
|
|
for (i = 0; i <= np->register_size; i += 32) {
|
|
netdev_info(dev,
|
|
"%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));
|
|
}
|
|
netdev_info(dev, "Dumping tx ring\n");
|
|
for (i = 0; i < np->tx_ring_size; i += 4) {
|
|
if (!nv_optimized(np)) {
|
|
netdev_info(dev,
|
|
"%03x: %08x %08x // %08x %08x "
|
|
"// %08x %08x // %08x %08x\n",
|
|
i,
|
|
le32_to_cpu(np->tx_ring.orig[i].buf),
|
|
le32_to_cpu(np->tx_ring.orig[i].flaglen),
|
|
le32_to_cpu(np->tx_ring.orig[i+1].buf),
|
|
le32_to_cpu(np->tx_ring.orig[i+1].flaglen),
|
|
le32_to_cpu(np->tx_ring.orig[i+2].buf),
|
|
le32_to_cpu(np->tx_ring.orig[i+2].flaglen),
|
|
le32_to_cpu(np->tx_ring.orig[i+3].buf),
|
|
le32_to_cpu(np->tx_ring.orig[i+3].flaglen));
|
|
} else {
|
|
netdev_info(dev,
|
|
"%03x: %08x %08x %08x "
|
|
"// %08x %08x %08x "
|
|
"// %08x %08x %08x "
|
|
"// %08x %08x %08x\n",
|
|
i,
|
|
le32_to_cpu(np->tx_ring.ex[i].bufhigh),
|
|
le32_to_cpu(np->tx_ring.ex[i].buflow),
|
|
le32_to_cpu(np->tx_ring.ex[i].flaglen),
|
|
le32_to_cpu(np->tx_ring.ex[i+1].bufhigh),
|
|
le32_to_cpu(np->tx_ring.ex[i+1].buflow),
|
|
le32_to_cpu(np->tx_ring.ex[i+1].flaglen),
|
|
le32_to_cpu(np->tx_ring.ex[i+2].bufhigh),
|
|
le32_to_cpu(np->tx_ring.ex[i+2].buflow),
|
|
le32_to_cpu(np->tx_ring.ex[i+2].flaglen),
|
|
le32_to_cpu(np->tx_ring.ex[i+3].bufhigh),
|
|
le32_to_cpu(np->tx_ring.ex[i+3].buflow),
|
|
le32_to_cpu(np->tx_ring.ex[i+3].flaglen));
|
|
}
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(&np->lock);
|
|
|
|
/* 1) stop tx engine */
|
|
nv_stop_tx(dev);
|
|
|
|
/* 2) complete any outstanding tx and do not give HW any limited tx pkts */
|
|
saved_tx_limit = np->tx_limit;
|
|
np->tx_limit = 0; /* prevent giving HW any limited pkts */
|
|
np->tx_stop = 0; /* prevent waking tx queue */
|
|
if (!nv_optimized(np))
|
|
nv_tx_done(dev, np->tx_ring_size);
|
|
else
|
|
nv_tx_done_optimized(dev, np->tx_ring_size);
|
|
|
|
/* save current HW position */
|
|
if (np->tx_change_owner)
|
|
put_tx.ex = np->tx_change_owner->first_tx_desc;
|
|
else
|
|
put_tx = np->put_tx;
|
|
|
|
/* 3) clear all tx state */
|
|
nv_drain_tx(dev);
|
|
nv_init_tx(dev);
|
|
|
|
/* 4) restore state to current HW position */
|
|
np->get_tx = np->put_tx = put_tx;
|
|
np->tx_limit = saved_tx_limit;
|
|
|
|
/* 5) restart tx engine */
|
|
nv_start_tx(dev);
|
|
netif_wake_queue(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 == 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;
|
|
}
|
|
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.
|
|
*/
|
|
return protolen;
|
|
} else {
|
|
/* less data on wire than mentioned in header.
|
|
* Discard the packet.
|
|
*/
|
|
return -1;
|
|
}
|
|
} else {
|
|
/* short packet. Accept only if 802 values are also short */
|
|
if (protolen > ETH_ZLEN) {
|
|
return -1;
|
|
}
|
|
return datalen;
|
|
}
|
|
}
|
|
|
|
static int nv_rx_process(struct net_device *dev, int limit)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 flags;
|
|
int rx_work = 0;
|
|
struct sk_buff *skb;
|
|
int len;
|
|
|
|
while ((np->get_rx.orig != np->put_rx.orig) &&
|
|
!((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) &&
|
|
(rx_work < limit)) {
|
|
|
|
/*
|
|
* the packet is for us - immediately tear down the pci mapping.
|
|
* TODO: check if a prefetch of the first cacheline improves
|
|
* the performance.
|
|
*/
|
|
dma_unmap_single(&np->pci_dev->dev, np->get_rx_ctx->dma,
|
|
np->get_rx_ctx->dma_len,
|
|
DMA_FROM_DEVICE);
|
|
skb = np->get_rx_ctx->skb;
|
|
np->get_rx_ctx->skb = NULL;
|
|
|
|
/* look at what we actually got: */
|
|
if (np->desc_ver == DESC_VER_1) {
|
|
if (likely(flags & NV_RX_DESCRIPTORVALID)) {
|
|
len = flags & LEN_MASK_V1;
|
|
if (unlikely(flags & NV_RX_ERROR)) {
|
|
if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) {
|
|
len = nv_getlen(dev, skb->data, len);
|
|
if (len < 0) {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
/* framing errors are soft errors */
|
|
else if ((flags & NV_RX_ERROR_MASK) == NV_RX_FRAMINGERR) {
|
|
if (flags & NV_RX_SUBTRACT1)
|
|
len--;
|
|
}
|
|
/* the rest are hard errors */
|
|
else {
|
|
if (flags & NV_RX_MISSEDFRAME) {
|
|
u64_stats_update_begin(&np->swstats_rx_syncp);
|
|
np->stat_rx_missed_errors++;
|
|
u64_stats_update_end(&np->swstats_rx_syncp);
|
|
}
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
} else {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
} else {
|
|
if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
|
|
len = flags & LEN_MASK_V2;
|
|
if (unlikely(flags & NV_RX2_ERROR)) {
|
|
if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
|
|
len = nv_getlen(dev, skb->data, len);
|
|
if (len < 0) {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
/* framing errors are soft errors */
|
|
else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
|
|
if (flags & NV_RX2_SUBTRACT1)
|
|
len--;
|
|
}
|
|
/* the rest are hard errors */
|
|
else {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
|
|
((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
} else {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
/* got a valid packet - forward it to the network core */
|
|
skb_put(skb, len);
|
|
skb->protocol = eth_type_trans(skb, dev);
|
|
napi_gro_receive(&np->napi, skb);
|
|
u64_stats_update_begin(&np->swstats_rx_syncp);
|
|
np->stat_rx_packets++;
|
|
np->stat_rx_bytes += len;
|
|
u64_stats_update_end(&np->swstats_rx_syncp);
|
|
next_pkt:
|
|
if (unlikely(np->get_rx.orig++ == np->last_rx.orig))
|
|
np->get_rx.orig = np->rx_ring.orig;
|
|
if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
|
|
np->get_rx_ctx = np->rx_skb;
|
|
|
|
rx_work++;
|
|
}
|
|
|
|
return rx_work;
|
|
}
|
|
|
|
static int nv_rx_process_optimized(struct net_device *dev, int limit)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 flags;
|
|
u32 vlanflags = 0;
|
|
int rx_work = 0;
|
|
struct sk_buff *skb;
|
|
int len;
|
|
|
|
while ((np->get_rx.ex != np->put_rx.ex) &&
|
|
!((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) &&
|
|
(rx_work < limit)) {
|
|
|
|
/*
|
|
* the packet is for us - immediately tear down the pci mapping.
|
|
* TODO: check if a prefetch of the first cacheline improves
|
|
* the performance.
|
|
*/
|
|
dma_unmap_single(&np->pci_dev->dev, np->get_rx_ctx->dma,
|
|
np->get_rx_ctx->dma_len,
|
|
DMA_FROM_DEVICE);
|
|
skb = np->get_rx_ctx->skb;
|
|
np->get_rx_ctx->skb = NULL;
|
|
|
|
/* look at what we actually got: */
|
|
if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
|
|
len = flags & LEN_MASK_V2;
|
|
if (unlikely(flags & NV_RX2_ERROR)) {
|
|
if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
|
|
len = nv_getlen(dev, skb->data, len);
|
|
if (len < 0) {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
/* framing errors are soft errors */
|
|
else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
|
|
if (flags & NV_RX2_SUBTRACT1)
|
|
len--;
|
|
}
|
|
/* the rest are hard errors */
|
|
else {
|
|
dev_kfree_skb(skb);
|
|
goto next_pkt;
|
|
}
|
|
}
|
|
|
|
if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
|
|
((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
|
|
/* got a valid packet - forward it to the network core */
|
|
skb_put(skb, len);
|
|
skb->protocol = eth_type_trans(skb, dev);
|
|
prefetch(skb->data);
|
|
|
|
vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
|
|
|
|
/*
|
|
* There's need to check for NETIF_F_HW_VLAN_CTAG_RX
|
|
* here. Even if vlan rx accel is disabled,
|
|
* NV_RX3_VLAN_TAG_PRESENT is pseudo randomly set.
|
|
*/
|
|
if (dev->features & NETIF_F_HW_VLAN_CTAG_RX &&
|
|
vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
|
|
u16 vid = vlanflags & NV_RX3_VLAN_TAG_MASK;
|
|
|
|
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
|
|
}
|
|
napi_gro_receive(&np->napi, skb);
|
|
u64_stats_update_begin(&np->swstats_rx_syncp);
|
|
np->stat_rx_packets++;
|
|
np->stat_rx_bytes += len;
|
|
u64_stats_update_end(&np->swstats_rx_syncp);
|
|
} else {
|
|
dev_kfree_skb(skb);
|
|
}
|
|
next_pkt:
|
|
if (unlikely(np->get_rx.ex++ == np->last_rx.ex))
|
|
np->get_rx.ex = np->rx_ring.ex;
|
|
if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
|
|
np->get_rx_ctx = np->rx_skb;
|
|
|
|
rx_work++;
|
|
}
|
|
|
|
return rx_work;
|
|
}
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
/* 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);
|
|
nv_napi_disable(dev);
|
|
netif_tx_lock_bh(dev);
|
|
netif_addr_lock(dev);
|
|
spin_lock(&np->lock);
|
|
/* stop engines */
|
|
nv_stop_rxtx(dev);
|
|
nv_txrx_reset(dev);
|
|
/* drain rx queue */
|
|
nv_drain_rxtx(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_rxtx(dev);
|
|
spin_unlock(&np->lock);
|
|
netif_addr_unlock(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
nv_napi_enable(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);
|
|
netif_addr_lock(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_addr_unlock(dev);
|
|
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) {
|
|
pff |= NVREG_PFF_PROMISC;
|
|
} else {
|
|
pff |= NVREG_PFF_MYADDR;
|
|
|
|
if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) {
|
|
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 netdev_hw_addr *ha;
|
|
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
unsigned char *hw_addr = ha->addr;
|
|
u32 a, b;
|
|
|
|
a = le32_to_cpu(*(__le32 *) hw_addr);
|
|
b = le16_to_cpu(*(__le16 *) (&hw_addr[4]));
|
|
alwaysOn[0] &= a;
|
|
alwaysOff[0] &= ~a;
|
|
alwaysOn[1] &= b;
|
|
alwaysOff[1] &= ~b;
|
|
}
|
|
}
|
|
addr[0] = alwaysOn[0];
|
|
addr[1] = alwaysOn[1];
|
|
mask[0] = alwaysOn[0] | alwaysOff[0];
|
|
mask[1] = alwaysOn[1] | alwaysOff[1];
|
|
} else {
|
|
mask[0] = NVREG_MCASTMASKA_NONE;
|
|
mask[1] = NVREG_MCASTMASKB_NONE;
|
|
}
|
|
}
|
|
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);
|
|
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) {
|
|
u32 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V1;
|
|
if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V2)
|
|
pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V2;
|
|
if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V3) {
|
|
pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V3;
|
|
/* limit the number of tx pause frames to a default of 8 */
|
|
writel(readl(base + NvRegTxPauseFrameLimit)|NVREG_TX_PAUSEFRAMELIMIT_ENABLE, base + NvRegTxPauseFrameLimit);
|
|
}
|
|
writel(pause_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);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void nv_force_linkspeed(struct net_device *dev, int speed, int duplex)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 phyreg, txreg;
|
|
int mii_status;
|
|
|
|
np->linkspeed = NVREG_LINKSPEED_FORCE|speed;
|
|
np->duplex = duplex;
|
|
|
|
/* see if gigabit phy */
|
|
mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
|
|
if (mii_status & PHY_GIGABIT) {
|
|
np->gigabit = PHY_GIGABIT;
|
|
phyreg = readl(base + NvRegSlotTime);
|
|
phyreg &= ~(0x3FF00);
|
|
if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10)
|
|
phyreg |= NVREG_SLOTTIME_10_100_FULL;
|
|
else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
|
|
phyreg |= NVREG_SLOTTIME_10_100_FULL;
|
|
else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
|
|
phyreg |= NVREG_SLOTTIME_1000_FULL;
|
|
writel(phyreg, base + NvRegSlotTime);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
u32 bmcr;
|
|
int retval = 0;
|
|
u32 control_1000, status_1000, phyreg, pause_flags, txreg;
|
|
u32 txrxFlags = 0;
|
|
u32 phy_exp;
|
|
|
|
/* If device loopback is enabled, set carrier on and enable max link
|
|
* speed.
|
|
*/
|
|
bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
if (bmcr & BMCR_LOOPBACK) {
|
|
if (netif_running(dev)) {
|
|
nv_force_linkspeed(dev, NVREG_LINKSPEED_1000, 1);
|
|
if (!netif_carrier_ok(dev))
|
|
netif_carrier_on(dev);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* 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)) {
|
|
newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
|
|
newdup = 0;
|
|
retval = 0;
|
|
goto set_speed;
|
|
}
|
|
|
|
if (np->autoneg == 0) {
|
|
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;
|
|
goto set_speed;
|
|
}
|
|
|
|
adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
|
|
lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
|
|
|
|
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)) {
|
|
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 {
|
|
newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
|
|
newdup = 0;
|
|
}
|
|
|
|
set_speed:
|
|
if (np->duplex == newdup && np->linkspeed == newls)
|
|
return retval;
|
|
|
|
np->duplex = newdup;
|
|
np->linkspeed = newls;
|
|
|
|
/* The transmitter and receiver must be restarted for safe update */
|
|
if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) {
|
|
txrxFlags |= NV_RESTART_TX;
|
|
nv_stop_tx(dev);
|
|
}
|
|
if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) {
|
|
txrxFlags |= NV_RESTART_RX;
|
|
nv_stop_rx(dev);
|
|
}
|
|
|
|
if (np->gigabit == PHY_GIGABIT) {
|
|
phyreg = readl(base + NvRegSlotTime);
|
|
phyreg &= ~(0x3FF00);
|
|
if (((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) ||
|
|
((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100))
|
|
phyreg |= NVREG_SLOTTIME_10_100_FULL;
|
|
else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
|
|
phyreg |= NVREG_SLOTTIME_1000_FULL;
|
|
writel(phyreg, base + NvRegSlotTime);
|
|
}
|
|
|
|
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);
|
|
|
|
phy_exp = mii_rw(dev, np->phyaddr, MII_EXPANSION, MII_READ) & EXPANSION_NWAY; /* autoneg capable */
|
|
if (phyreg & PHY_RGMII) {
|
|
if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) {
|
|
txreg = NVREG_TX_DEFERRAL_RGMII_1000;
|
|
} else {
|
|
if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) {
|
|
if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_10)
|
|
txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_10;
|
|
else
|
|
txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_100;
|
|
} else {
|
|
txreg = NVREG_TX_DEFERRAL_RGMII_10_100;
|
|
}
|
|
}
|
|
} else {
|
|
if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX))
|
|
txreg = NVREG_TX_DEFERRAL_MII_STRETCH;
|
|
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 (netif_running(dev) && (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);
|
|
|
|
if (txrxFlags & NV_RESTART_TX)
|
|
nv_start_tx(dev);
|
|
if (txrxFlags & NV_RESTART_RX)
|
|
nv_start_rx(dev);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static void nv_linkchange(struct net_device *dev)
|
|
{
|
|
if (nv_update_linkspeed(dev)) {
|
|
if (!netif_carrier_ok(dev)) {
|
|
netif_carrier_on(dev);
|
|
netdev_info(dev, "link up\n");
|
|
nv_txrx_gate(dev, false);
|
|
nv_start_rx(dev);
|
|
}
|
|
} else {
|
|
if (netif_carrier_ok(dev)) {
|
|
netif_carrier_off(dev);
|
|
netdev_info(dev, "link down\n");
|
|
nv_txrx_gate(dev, true);
|
|
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_LINKCHANGE, base + NvRegMIIStatus);
|
|
|
|
if (miistat & (NVREG_MIISTAT_LINKCHANGE))
|
|
nv_linkchange(dev);
|
|
}
|
|
|
|
static void nv_msi_workaround(struct fe_priv *np)
|
|
{
|
|
|
|
/* Need to toggle the msi irq mask within the ethernet device,
|
|
* otherwise, future interrupts will not be detected.
|
|
*/
|
|
if (np->msi_flags & NV_MSI_ENABLED) {
|
|
u8 __iomem *base = np->base;
|
|
|
|
writel(0, base + NvRegMSIIrqMask);
|
|
writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
|
|
}
|
|
}
|
|
|
|
static inline int nv_change_interrupt_mode(struct net_device *dev, int total_work)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC) {
|
|
if (total_work > NV_DYNAMIC_THRESHOLD) {
|
|
/* transition to poll based interrupts */
|
|
np->quiet_count = 0;
|
|
if (np->irqmask != NVREG_IRQMASK_CPU) {
|
|
np->irqmask = NVREG_IRQMASK_CPU;
|
|
return 1;
|
|
}
|
|
} else {
|
|
if (np->quiet_count < NV_DYNAMIC_MAX_QUIET_COUNT) {
|
|
np->quiet_count++;
|
|
} else {
|
|
/* reached a period of low activity, switch
|
|
to per tx/rx packet interrupts */
|
|
if (np->irqmask != NVREG_IRQMASK_THROUGHPUT) {
|
|
np->irqmask = NVREG_IRQMASK_THROUGHPUT;
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t nv_nic_irq(int foo, void *data)
|
|
{
|
|
struct net_device *dev = (struct net_device *) data;
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
|
|
if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
|
|
np->events = readl(base + NvRegIrqStatus);
|
|
writel(np->events, base + NvRegIrqStatus);
|
|
} else {
|
|
np->events = readl(base + NvRegMSIXIrqStatus);
|
|
writel(np->events, base + NvRegMSIXIrqStatus);
|
|
}
|
|
if (!(np->events & np->irqmask))
|
|
return IRQ_NONE;
|
|
|
|
nv_msi_workaround(np);
|
|
|
|
if (napi_schedule_prep(&np->napi)) {
|
|
/*
|
|
* Disable further irq's (msix not enabled with napi)
|
|
*/
|
|
writel(0, base + NvRegIrqMask);
|
|
__napi_schedule(&np->napi);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* All _optimized functions are used to help increase performance
|
|
* (reduce CPU and increase throughput). They use descripter version 3,
|
|
* compiler directives, and reduce memory accesses.
|
|
*/
|
|
static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
|
|
{
|
|
struct net_device *dev = (struct net_device *) data;
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
|
|
if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
|
|
np->events = readl(base + NvRegIrqStatus);
|
|
writel(np->events, base + NvRegIrqStatus);
|
|
} else {
|
|
np->events = readl(base + NvRegMSIXIrqStatus);
|
|
writel(np->events, base + NvRegMSIXIrqStatus);
|
|
}
|
|
if (!(np->events & np->irqmask))
|
|
return IRQ_NONE;
|
|
|
|
nv_msi_workaround(np);
|
|
|
|
if (napi_schedule_prep(&np->napi)) {
|
|
/*
|
|
* Disable further irq's (msix not enabled with napi)
|
|
*/
|
|
writel(0, base + NvRegIrqMask);
|
|
__napi_schedule(&np->napi);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t nv_nic_irq_tx(int foo, void *data)
|
|
{
|
|
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;
|
|
unsigned long flags;
|
|
|
|
for (i = 0;; i++) {
|
|
events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL;
|
|
writel(events, base + NvRegMSIXIrqStatus);
|
|
netdev_dbg(dev, "tx irq events: %08x\n", events);
|
|
if (!(events & np->irqmask))
|
|
break;
|
|
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
if (unlikely(i > max_interrupt_work)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
/* 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);
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_dbg(dev, "%s: too many iterations (%d)\n",
|
|
__func__, i);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
return IRQ_RETVAL(i);
|
|
}
|
|
|
|
static int nv_napi_poll(struct napi_struct *napi, int budget)
|
|
{
|
|
struct fe_priv *np = container_of(napi, struct fe_priv, napi);
|
|
struct net_device *dev = np->dev;
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
unsigned long flags;
|
|
int retcode;
|
|
int rx_count, tx_work = 0, rx_work = 0;
|
|
|
|
do {
|
|
if (!nv_optimized(np)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
tx_work += nv_tx_done(dev, np->tx_ring_size);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
rx_count = nv_rx_process(dev, budget - rx_work);
|
|
retcode = nv_alloc_rx(dev);
|
|
} else {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
tx_work += nv_tx_done_optimized(dev, np->tx_ring_size);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
rx_count = nv_rx_process_optimized(dev,
|
|
budget - rx_work);
|
|
retcode = nv_alloc_rx_optimized(dev);
|
|
}
|
|
} while (retcode == 0 &&
|
|
rx_count > 0 && (rx_work += rx_count) < budget);
|
|
|
|
if (retcode) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
if (!np->in_shutdown)
|
|
mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
}
|
|
|
|
nv_change_interrupt_mode(dev, tx_work + rx_work);
|
|
|
|
if (unlikely(np->events & NVREG_IRQ_LINK)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_link_irq(dev);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
}
|
|
if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_linkchange(dev);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
np->link_timeout = jiffies + LINK_TIMEOUT;
|
|
}
|
|
if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
if (!np->in_shutdown) {
|
|
np->nic_poll_irq = np->irqmask;
|
|
np->recover_error = 1;
|
|
mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
napi_complete(napi);
|
|
return rx_work;
|
|
}
|
|
|
|
if (rx_work < budget) {
|
|
/* re-enable interrupts
|
|
(msix not enabled in napi) */
|
|
napi_complete_done(napi, rx_work);
|
|
|
|
writel(np->irqmask, base + NvRegIrqMask);
|
|
}
|
|
return rx_work;
|
|
}
|
|
|
|
static irqreturn_t nv_nic_irq_rx(int foo, void *data)
|
|
{
|
|
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;
|
|
unsigned long flags;
|
|
|
|
for (i = 0;; i++) {
|
|
events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
|
|
writel(events, base + NvRegMSIXIrqStatus);
|
|
netdev_dbg(dev, "rx irq events: %08x\n", events);
|
|
if (!(events & np->irqmask))
|
|
break;
|
|
|
|
if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
|
|
if (unlikely(nv_alloc_rx_optimized(dev))) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
if (!np->in_shutdown)
|
|
mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
}
|
|
}
|
|
|
|
if (unlikely(i > max_interrupt_work)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
/* 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);
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_dbg(dev, "%s: too many iterations (%d)\n",
|
|
__func__, i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return IRQ_RETVAL(i);
|
|
}
|
|
|
|
static irqreturn_t nv_nic_irq_other(int foo, void *data)
|
|
{
|
|
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;
|
|
unsigned long flags;
|
|
|
|
for (i = 0;; i++) {
|
|
events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER;
|
|
writel(events, base + NvRegMSIXIrqStatus);
|
|
netdev_dbg(dev, "irq events: %08x\n", events);
|
|
if (!(events & np->irqmask))
|
|
break;
|
|
|
|
/* check tx in case we reached max loop limit in tx isr */
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
if (events & NVREG_IRQ_LINK) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_link_irq(dev);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
}
|
|
if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_linkchange(dev);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
np->link_timeout = jiffies + LINK_TIMEOUT;
|
|
}
|
|
if (events & NVREG_IRQ_RECOVER_ERROR) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
/* 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;
|
|
np->recover_error = 1;
|
|
mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
break;
|
|
}
|
|
if (unlikely(i > max_interrupt_work)) {
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
/* 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);
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_dbg(dev, "%s: too many iterations (%d)\n",
|
|
__func__, i);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
return IRQ_RETVAL(i);
|
|
}
|
|
|
|
static irqreturn_t nv_nic_irq_test(int foo, void *data)
|
|
{
|
|
struct net_device *dev = (struct net_device *) data;
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 events;
|
|
|
|
if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
|
|
events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
|
|
writel(events & NVREG_IRQ_TIMER, base + NvRegIrqStatus);
|
|
} else {
|
|
events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
|
|
writel(events & NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus);
|
|
}
|
|
pci_push(base);
|
|
if (!(events & NVREG_IRQ_TIMER))
|
|
return IRQ_RETVAL(0);
|
|
|
|
nv_msi_workaround(np);
|
|
|
|
spin_lock(&np->lock);
|
|
np->intr_test = 1;
|
|
spin_unlock(&np->lock);
|
|
|
|
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;
|
|
int i;
|
|
irqreturn_t (*handler)(int foo, void *data);
|
|
|
|
if (intr_test) {
|
|
handler = nv_nic_irq_test;
|
|
} else {
|
|
if (nv_optimized(np))
|
|
handler = nv_nic_irq_optimized;
|
|
else
|
|
handler = nv_nic_irq;
|
|
}
|
|
|
|
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;
|
|
ret = pci_enable_msix_range(np->pci_dev,
|
|
np->msi_x_entry,
|
|
np->msi_flags & NV_MSI_X_VECTORS_MASK,
|
|
np->msi_flags & NV_MSI_X_VECTORS_MASK);
|
|
if (ret > 0) {
|
|
np->msi_flags |= NV_MSI_X_ENABLED;
|
|
if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) {
|
|
/* Request irq for rx handling */
|
|
sprintf(np->name_rx, "%s-rx", dev->name);
|
|
ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector,
|
|
nv_nic_irq_rx, IRQF_SHARED, np->name_rx, dev);
|
|
if (ret) {
|
|
netdev_info(dev,
|
|
"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 */
|
|
sprintf(np->name_tx, "%s-tx", dev->name);
|
|
ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector,
|
|
nv_nic_irq_tx, IRQF_SHARED, np->name_tx, dev);
|
|
if (ret) {
|
|
netdev_info(dev,
|
|
"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 */
|
|
sprintf(np->name_other, "%s-other", dev->name);
|
|
ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector,
|
|
nv_nic_irq_other, IRQF_SHARED, np->name_other, dev);
|
|
if (ret) {
|
|
netdev_info(dev,
|
|
"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 */
|
|
ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector,
|
|
handler, IRQF_SHARED, dev->name, dev);
|
|
if (ret) {
|
|
netdev_info(dev,
|
|
"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);
|
|
}
|
|
netdev_info(dev, "MSI-X enabled\n");
|
|
return 0;
|
|
}
|
|
}
|
|
if (np->msi_flags & NV_MSI_CAPABLE) {
|
|
ret = pci_enable_msi(np->pci_dev);
|
|
if (ret == 0) {
|
|
np->msi_flags |= NV_MSI_ENABLED;
|
|
ret = request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev);
|
|
if (ret) {
|
|
netdev_info(dev, "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);
|
|
netdev_info(dev, "MSI enabled\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (request_irq(np->pci_dev->irq, handler, 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(struct timer_list *t)
|
|
{
|
|
struct fe_priv *np = from_timer(np, t, nic_poll);
|
|
struct net_device *dev = np->dev;
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 mask = 0;
|
|
unsigned long flags;
|
|
unsigned int irq = 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)
|
|
irq = np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector;
|
|
else
|
|
irq = np->pci_dev->irq;
|
|
mask = np->irqmask;
|
|
} else {
|
|
if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
|
|
irq = np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector;
|
|
mask |= NVREG_IRQ_RX_ALL;
|
|
}
|
|
if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
|
|
irq = np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector;
|
|
mask |= NVREG_IRQ_TX_ALL;
|
|
}
|
|
if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
|
|
irq = np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector;
|
|
mask |= NVREG_IRQ_OTHER;
|
|
}
|
|
}
|
|
|
|
disable_irq_nosync_lockdep_irqsave(irq, &flags);
|
|
synchronize_irq(irq);
|
|
|
|
if (np->recover_error) {
|
|
np->recover_error = 0;
|
|
netdev_info(dev, "MAC in recoverable error state\n");
|
|
if (netif_running(dev)) {
|
|
netif_tx_lock_bh(dev);
|
|
netif_addr_lock(dev);
|
|
spin_lock(&np->lock);
|
|
/* stop engines */
|
|
nv_stop_rxtx(dev);
|
|
if (np->driver_data & DEV_HAS_POWER_CNTRL)
|
|
nv_mac_reset(dev);
|
|
nv_txrx_reset(dev);
|
|
/* drain rx queue */
|
|
nv_drain_rxtx(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);
|
|
/* clear interrupts */
|
|
if (!(np->msi_flags & NV_MSI_X_ENABLED))
|
|
writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
|
|
else
|
|
writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
|
|
|
|
/* restart rx engine */
|
|
nv_start_rxtx(dev);
|
|
spin_unlock(&np->lock);
|
|
netif_addr_unlock(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
}
|
|
}
|
|
|
|
writel(mask, base + NvRegIrqMask);
|
|
pci_push(base);
|
|
|
|
if (!using_multi_irqs(dev)) {
|
|
np->nic_poll_irq = 0;
|
|
if (nv_optimized(np))
|
|
nv_nic_irq_optimized(0, dev);
|
|
else
|
|
nv_nic_irq(0, dev);
|
|
} else {
|
|
if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
|
|
np->nic_poll_irq &= ~NVREG_IRQ_RX_ALL;
|
|
nv_nic_irq_rx(0, dev);
|
|
}
|
|
if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
|
|
np->nic_poll_irq &= ~NVREG_IRQ_TX_ALL;
|
|
nv_nic_irq_tx(0, dev);
|
|
}
|
|
if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
|
|
np->nic_poll_irq &= ~NVREG_IRQ_OTHER;
|
|
nv_nic_irq_other(0, dev);
|
|
}
|
|
}
|
|
|
|
enable_irq_lockdep_irqrestore(irq, &flags);
|
|
}
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void nv_poll_controller(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
nv_do_nic_poll(&np->nic_poll);
|
|
}
|
|
#endif
|
|
|
|
static void nv_do_stats_poll(struct timer_list *t)
|
|
__acquires(&netdev_priv(dev)->hwstats_lock)
|
|
__releases(&netdev_priv(dev)->hwstats_lock)
|
|
{
|
|
struct fe_priv *np = from_timer(np, t, stats_poll);
|
|
struct net_device *dev = np->dev;
|
|
|
|
/* If lock is currently taken, the stats are being refreshed
|
|
* and hence fresh enough */
|
|
if (spin_trylock(&np->hwstats_lock)) {
|
|
nv_update_stats(dev);
|
|
spin_unlock(&np->hwstats_lock);
|
|
}
|
|
|
|
if (!np->in_shutdown)
|
|
mod_timer(&np->stats_poll,
|
|
round_jiffies(jiffies + STATS_INTERVAL));
|
|
}
|
|
|
|
static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
|
|
strlcpy(info->version, FORCEDETH_VERSION, sizeof(info->version));
|
|
strlcpy(info->bus_info, pci_name(np->pci_dev), sizeof(info->bus_info));
|
|
}
|
|
|
|
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);
|
|
}
|
|
device_set_wakeup_enable(&np->pci_dev->dev, np->wolenabled);
|
|
return 0;
|
|
}
|
|
|
|
static int nv_get_link_ksettings(struct net_device *dev,
|
|
struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 speed, supported, advertising;
|
|
int adv;
|
|
|
|
spin_lock_irq(&np->lock);
|
|
cmd->base.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)) {
|
|
netif_carrier_on(dev);
|
|
} else {
|
|
netif_carrier_off(dev);
|
|
}
|
|
}
|
|
|
|
if (netif_carrier_ok(dev)) {
|
|
switch (np->linkspeed & (NVREG_LINKSPEED_MASK)) {
|
|
case NVREG_LINKSPEED_10:
|
|
speed = SPEED_10;
|
|
break;
|
|
case NVREG_LINKSPEED_100:
|
|
speed = SPEED_100;
|
|
break;
|
|
case NVREG_LINKSPEED_1000:
|
|
speed = SPEED_1000;
|
|
break;
|
|
default:
|
|
speed = -1;
|
|
break;
|
|
}
|
|
cmd->base.duplex = DUPLEX_HALF;
|
|
if (np->duplex)
|
|
cmd->base.duplex = DUPLEX_FULL;
|
|
} else {
|
|
speed = SPEED_UNKNOWN;
|
|
cmd->base.duplex = DUPLEX_UNKNOWN;
|
|
}
|
|
cmd->base.speed = speed;
|
|
cmd->base.autoneg = np->autoneg;
|
|
|
|
advertising = ADVERTISED_MII;
|
|
if (np->autoneg) {
|
|
advertising |= ADVERTISED_Autoneg;
|
|
adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
|
|
if (adv & ADVERTISE_10HALF)
|
|
advertising |= ADVERTISED_10baseT_Half;
|
|
if (adv & ADVERTISE_10FULL)
|
|
advertising |= ADVERTISED_10baseT_Full;
|
|
if (adv & ADVERTISE_100HALF)
|
|
advertising |= ADVERTISED_100baseT_Half;
|
|
if (adv & ADVERTISE_100FULL)
|
|
advertising |= ADVERTISED_100baseT_Full;
|
|
if (np->gigabit == PHY_GIGABIT) {
|
|
adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
|
|
if (adv & ADVERTISE_1000FULL)
|
|
advertising |= ADVERTISED_1000baseT_Full;
|
|
}
|
|
}
|
|
supported = (SUPPORTED_Autoneg |
|
|
SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
|
|
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
|
|
SUPPORTED_MII);
|
|
if (np->gigabit == PHY_GIGABIT)
|
|
supported |= SUPPORTED_1000baseT_Full;
|
|
|
|
cmd->base.phy_address = np->phyaddr;
|
|
|
|
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
|
|
supported);
|
|
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
|
|
advertising);
|
|
|
|
/* ignore maxtxpkt, maxrxpkt for now */
|
|
spin_unlock_irq(&np->lock);
|
|
return 0;
|
|
}
|
|
|
|
static int nv_set_link_ksettings(struct net_device *dev,
|
|
const struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u32 speed = cmd->base.speed;
|
|
u32 advertising;
|
|
|
|
ethtool_convert_link_mode_to_legacy_u32(&advertising,
|
|
cmd->link_modes.advertising);
|
|
|
|
if (cmd->base.port != PORT_MII)
|
|
return -EINVAL;
|
|
if (cmd->base.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 (cmd->base.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 ((advertising & mask) == 0)
|
|
return -EINVAL;
|
|
|
|
} else if (cmd->base.autoneg == AUTONEG_DISABLE) {
|
|
/* Note: autonegotiation disable, speed 1000 intentionally
|
|
* forbidden - no one should need that. */
|
|
|
|
if (speed != SPEED_10 && speed != SPEED_100)
|
|
return -EINVAL;
|
|
if (cmd->base.duplex != DUPLEX_HALF &&
|
|
cmd->base.duplex != DUPLEX_FULL)
|
|
return -EINVAL;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
netif_carrier_off(dev);
|
|
if (netif_running(dev)) {
|
|
unsigned long flags;
|
|
|
|
nv_disable_irq(dev);
|
|
netif_tx_lock_bh(dev);
|
|
netif_addr_lock(dev);
|
|
/* with plain spinlock lockdep complains */
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
/* stop engines */
|
|
/* FIXME:
|
|
* this can take some time, and interrupts are disabled
|
|
* due to spin_lock_irqsave, but let's hope no daemon
|
|
* is going to change the settings very often...
|
|
* Worst case:
|
|
* NV_RXSTOP_DELAY1MAX + NV_TXSTOP_DELAY1MAX
|
|
* + some minor delays, which is up to a second approximately
|
|
*/
|
|
nv_stop_rxtx(dev);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netif_addr_unlock(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
}
|
|
|
|
if (cmd->base.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 (advertising & ADVERTISED_10baseT_Half)
|
|
adv |= ADVERTISE_10HALF;
|
|
if (advertising & ADVERTISED_10baseT_Full)
|
|
adv |= ADVERTISE_10FULL;
|
|
if (advertising & ADVERTISED_100baseT_Half)
|
|
adv |= ADVERTISE_100HALF;
|
|
if (advertising & ADVERTISED_100baseT_Full)
|
|
adv |= ADVERTISE_100FULL;
|
|
if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisements 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 (advertising & ADVERTISED_1000baseT_Full)
|
|
adv |= ADVERTISE_1000FULL;
|
|
mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
|
|
}
|
|
|
|
if (netif_running(dev))
|
|
netdev_info(dev, "link down\n");
|
|
bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
|
|
bmcr |= BMCR_ANENABLE;
|
|
/* reset the phy in order for settings to stick,
|
|
* and cause autoneg to start */
|
|
if (phy_reset(dev, bmcr)) {
|
|
netdev_info(dev, "phy reset failed\n");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
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 (speed == SPEED_10 && cmd->base.duplex == DUPLEX_HALF)
|
|
adv |= ADVERTISE_10HALF;
|
|
if (speed == SPEED_10 && cmd->base.duplex == DUPLEX_FULL)
|
|
adv |= ADVERTISE_10FULL;
|
|
if (speed == SPEED_100 && cmd->base.duplex == DUPLEX_HALF)
|
|
adv |= ADVERTISE_100HALF;
|
|
if (speed == SPEED_100 && cmd->base.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 advertisements 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;
|
|
if (np->phy_oui == PHY_OUI_MARVELL) {
|
|
/* reset the phy in order for forced mode settings to stick */
|
|
if (phy_reset(dev, bmcr)) {
|
|
netdev_info(dev, "phy reset failed\n");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
|
|
if (netif_running(dev)) {
|
|
/* Wait a bit and then reconfigure the nic. */
|
|
udelay(10);
|
|
nv_linkchange(dev);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (netif_running(dev)) {
|
|
nv_start_rxtx(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);
|
|
netif_addr_lock(dev);
|
|
spin_lock(&np->lock);
|
|
/* stop engines */
|
|
nv_stop_rxtx(dev);
|
|
spin_unlock(&np->lock);
|
|
netif_addr_unlock(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
netdev_info(dev, "link down\n");
|
|
}
|
|
|
|
bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
|
|
bmcr |= BMCR_ANENABLE;
|
|
/* reset the phy in order for settings to stick*/
|
|
if (phy_reset(dev, bmcr)) {
|
|
netdev_info(dev, "phy reset failed\n");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
|
|
mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
|
|
}
|
|
|
|
if (netif_running(dev)) {
|
|
nv_start_rxtx(dev);
|
|
nv_enable_irq(dev);
|
|
}
|
|
ret = 0;
|
|
} else {
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
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->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->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;
|
|
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 (!nv_optimized(np)) {
|
|
rxtx_ring = dma_alloc_coherent(&np->pci_dev->dev,
|
|
sizeof(struct ring_desc) *
|
|
(ring->rx_pending +
|
|
ring->tx_pending),
|
|
&ring_addr, GFP_ATOMIC);
|
|
} else {
|
|
rxtx_ring = dma_alloc_coherent(&np->pci_dev->dev,
|
|
sizeof(struct ring_desc_ex) *
|
|
(ring->rx_pending +
|
|
ring->tx_pending),
|
|
&ring_addr, GFP_ATOMIC);
|
|
}
|
|
rx_skbuff = kmalloc_array(ring->rx_pending, sizeof(struct nv_skb_map),
|
|
GFP_KERNEL);
|
|
tx_skbuff = kmalloc_array(ring->tx_pending, sizeof(struct nv_skb_map),
|
|
GFP_KERNEL);
|
|
if (!rxtx_ring || !rx_skbuff || !tx_skbuff) {
|
|
/* fall back to old rings */
|
|
if (!nv_optimized(np)) {
|
|
if (rxtx_ring)
|
|
dma_free_coherent(&np->pci_dev->dev,
|
|
sizeof(struct ring_desc) *
|
|
(ring->rx_pending +
|
|
ring->tx_pending),
|
|
rxtx_ring, ring_addr);
|
|
} else {
|
|
if (rxtx_ring)
|
|
dma_free_coherent(&np->pci_dev->dev,
|
|
sizeof(struct ring_desc_ex) *
|
|
(ring->rx_pending +
|
|
ring->tx_pending),
|
|
rxtx_ring, ring_addr);
|
|
}
|
|
|
|
kfree(rx_skbuff);
|
|
kfree(tx_skbuff);
|
|
goto exit;
|
|
}
|
|
|
|
if (netif_running(dev)) {
|
|
nv_disable_irq(dev);
|
|
nv_napi_disable(dev);
|
|
netif_tx_lock_bh(dev);
|
|
netif_addr_lock(dev);
|
|
spin_lock(&np->lock);
|
|
/* stop engines */
|
|
nv_stop_rxtx(dev);
|
|
nv_txrx_reset(dev);
|
|
/* drain queues */
|
|
nv_drain_rxtx(dev);
|
|
/* delete queues */
|
|
free_rings(dev);
|
|
}
|
|
|
|
/* set new values */
|
|
np->rx_ring_size = ring->rx_pending;
|
|
np->tx_ring_size = ring->tx_pending;
|
|
|
|
if (!nv_optimized(np)) {
|
|
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_skb = (struct nv_skb_map *)rx_skbuff;
|
|
np->tx_skb = (struct nv_skb_map *)tx_skbuff;
|
|
np->ring_addr = ring_addr;
|
|
|
|
memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size);
|
|
memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * 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_rxtx(dev);
|
|
spin_unlock(&np->lock);
|
|
netif_addr_unlock(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
nv_napi_enable(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)) {
|
|
netdev_info(dev, "can not set pause settings when forced link is in half duplex\n");
|
|
return -EINVAL;
|
|
}
|
|
if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) {
|
|
netdev_info(dev, "hardware does not support tx pause frames\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
netif_carrier_off(dev);
|
|
if (netif_running(dev)) {
|
|
nv_disable_irq(dev);
|
|
netif_tx_lock_bh(dev);
|
|
netif_addr_lock(dev);
|
|
spin_lock(&np->lock);
|
|
/* stop engines */
|
|
nv_stop_rxtx(dev);
|
|
spin_unlock(&np->lock);
|
|
netif_addr_unlock(dev);
|
|
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 advertisements 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))
|
|
netdev_info(dev, "link down\n");
|
|
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_rxtx(dev);
|
|
nv_enable_irq(dev);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int nv_set_loopback(struct net_device *dev, netdev_features_t features)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
unsigned long flags;
|
|
u32 miicontrol;
|
|
int err, retval = 0;
|
|
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
if (features & NETIF_F_LOOPBACK) {
|
|
if (miicontrol & BMCR_LOOPBACK) {
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_info(dev, "Loopback already enabled\n");
|
|
return 0;
|
|
}
|
|
nv_disable_irq(dev);
|
|
/* Turn on loopback mode */
|
|
miicontrol |= BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
|
|
err = mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol);
|
|
if (err) {
|
|
retval = PHY_ERROR;
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
phy_init(dev);
|
|
} else {
|
|
if (netif_running(dev)) {
|
|
/* Force 1000 Mbps full-duplex */
|
|
nv_force_linkspeed(dev, NVREG_LINKSPEED_1000,
|
|
1);
|
|
/* Force link up */
|
|
netif_carrier_on(dev);
|
|
}
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_info(dev,
|
|
"Internal PHY loopback mode enabled.\n");
|
|
}
|
|
} else {
|
|
if (!(miicontrol & BMCR_LOOPBACK)) {
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_info(dev, "Loopback already disabled\n");
|
|
return 0;
|
|
}
|
|
nv_disable_irq(dev);
|
|
/* Turn off loopback */
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
netdev_info(dev, "Internal PHY loopback mode disabled.\n");
|
|
phy_init(dev);
|
|
}
|
|
msleep(500);
|
|
spin_lock_irqsave(&np->lock, flags);
|
|
nv_enable_irq(dev);
|
|
spin_unlock_irqrestore(&np->lock, flags);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static netdev_features_t nv_fix_features(struct net_device *dev,
|
|
netdev_features_t features)
|
|
{
|
|
/* vlan is dependent on rx checksum offload */
|
|
if (features & (NETIF_F_HW_VLAN_CTAG_TX|NETIF_F_HW_VLAN_CTAG_RX))
|
|
features |= NETIF_F_RXCSUM;
|
|
|
|
return features;
|
|
}
|
|
|
|
static void nv_vlan_mode(struct net_device *dev, netdev_features_t features)
|
|
{
|
|
struct fe_priv *np = get_nvpriv(dev);
|
|
|
|
spin_lock_irq(&np->lock);
|
|
|
|
if (features & NETIF_F_HW_VLAN_CTAG_RX)
|
|
np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP;
|
|
else
|
|
np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
|
|
|
|
if (features & NETIF_F_HW_VLAN_CTAG_TX)
|
|
np->txrxctl_bits |= NVREG_TXRXCTL_VLANINS;
|
|
else
|
|
np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
|
|
|
|
writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
|
|
|
|
spin_unlock_irq(&np->lock);
|
|
}
|
|
|
|
static int nv_set_features(struct net_device *dev, netdev_features_t features)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
netdev_features_t changed = dev->features ^ features;
|
|
int retval;
|
|
|
|
if ((changed & NETIF_F_LOOPBACK) && netif_running(dev)) {
|
|
retval = nv_set_loopback(dev, features);
|
|
if (retval != 0)
|
|
return retval;
|
|
}
|
|
|
|
if (changed & NETIF_F_RXCSUM) {
|
|
spin_lock_irq(&np->lock);
|
|
|
|
if (features & NETIF_F_RXCSUM)
|
|
np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
|
|
else
|
|
np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK;
|
|
|
|
if (netif_running(dev))
|
|
writel(np->txrxctl_bits, base + NvRegTxRxControl);
|
|
|
|
spin_unlock_irq(&np->lock);
|
|
}
|
|
|
|
if (changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX))
|
|
nv_vlan_mode(dev, features);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nv_get_sset_count(struct net_device *dev, int sset)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
switch (sset) {
|
|
case ETH_SS_TEST:
|
|
if (np->driver_data & DEV_HAS_TEST_EXTENDED)
|
|
return NV_TEST_COUNT_EXTENDED;
|
|
else
|
|
return NV_TEST_COUNT_BASE;
|
|
case ETH_SS_STATS:
|
|
if (np->driver_data & DEV_HAS_STATISTICS_V3)
|
|
return NV_DEV_STATISTICS_V3_COUNT;
|
|
else if (np->driver_data & DEV_HAS_STATISTICS_V2)
|
|
return NV_DEV_STATISTICS_V2_COUNT;
|
|
else if (np->driver_data & DEV_HAS_STATISTICS_V1)
|
|
return NV_DEV_STATISTICS_V1_COUNT;
|
|
else
|
|
return 0;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static void nv_get_ethtool_stats(struct net_device *dev,
|
|
struct ethtool_stats *estats, u64 *buffer)
|
|
__acquires(&netdev_priv(dev)->hwstats_lock)
|
|
__releases(&netdev_priv(dev)->hwstats_lock)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
spin_lock_bh(&np->hwstats_lock);
|
|
nv_update_stats(dev);
|
|
memcpy(buffer, &np->estats,
|
|
nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64));
|
|
spin_unlock_bh(&np->hwstats_lock);
|
|
}
|
|
|
|
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_rxtx(dev);
|
|
|
|
/* setup packet for tx */
|
|
pkt_len = ETH_DATA_LEN;
|
|
tx_skb = netdev_alloc_skb(dev, pkt_len);
|
|
if (!tx_skb) {
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
test_dma_addr = dma_map_single(&np->pci_dev->dev, tx_skb->data,
|
|
skb_tailroom(tx_skb),
|
|
DMA_FROM_DEVICE);
|
|
if (unlikely(dma_mapping_error(&np->pci_dev->dev,
|
|
test_dma_addr))) {
|
|
dev_kfree_skb_any(tx_skb);
|
|
goto out;
|
|
}
|
|
pkt_data = skb_put(tx_skb, pkt_len);
|
|
for (i = 0; i < pkt_len; i++)
|
|
pkt_data[i] = (u8)(i & 0xff);
|
|
|
|
if (!nv_optimized(np)) {
|
|
np->tx_ring.orig[0].buf = 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].bufhigh = cpu_to_le32(dma_high(test_dma_addr));
|
|
np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr));
|
|
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 (!nv_optimized(np)) {
|
|
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;
|
|
} else {
|
|
rx_skb = np->rx_skb[0].skb;
|
|
for (i = 0; i < pkt_len; i++) {
|
|
if (rx_skb->data[i] != (u8)(i & 0xff)) {
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
dma_unmap_single(&np->pci_dev->dev, test_dma_addr,
|
|
(skb_end_pointer(tx_skb) - tx_skb->data),
|
|
DMA_TO_DEVICE);
|
|
dev_kfree_skb_any(tx_skb);
|
|
out:
|
|
/* stop engines */
|
|
nv_stop_rxtx(dev);
|
|
nv_txrx_reset(dev);
|
|
/* drain rx queue */
|
|
nv_drain_rxtx(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, count;
|
|
|
|
count = nv_get_sset_count(dev, ETH_SS_TEST);
|
|
memset(buffer, 0, count * 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);
|
|
nv_napi_disable(dev);
|
|
netif_tx_lock_bh(dev);
|
|
netif_addr_lock(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_rxtx(dev);
|
|
nv_txrx_reset(dev);
|
|
/* drain rx queue */
|
|
nv_drain_rxtx(dev);
|
|
spin_unlock_irq(&np->lock);
|
|
netif_addr_unlock(dev);
|
|
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 (count > NV_TEST_COUNT_BASE && !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_rxtx(dev);
|
|
netif_start_queue(dev);
|
|
nv_napi_enable(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_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str));
|
|
break;
|
|
case ETH_SS_TEST:
|
|
memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static const 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_regs_len = nv_get_regs_len,
|
|
.get_regs = nv_get_regs,
|
|
.nway_reset = nv_nway_reset,
|
|
.get_ringparam = nv_get_ringparam,
|
|
.set_ringparam = nv_set_ringparam,
|
|
.get_pauseparam = nv_get_pauseparam,
|
|
.set_pauseparam = nv_set_pauseparam,
|
|
.get_strings = nv_get_strings,
|
|
.get_ethtool_stats = nv_get_ethtool_stats,
|
|
.get_sset_count = nv_get_sset_count,
|
|
.self_test = nv_self_test,
|
|
.get_ts_info = ethtool_op_get_ts_info,
|
|
.get_link_ksettings = nv_get_link_ksettings,
|
|
.set_link_ksettings = nv_set_link_ksettings,
|
|
};
|
|
|
|
/* The mgmt unit and driver use a semaphore to access the phy during init */
|
|
static int nv_mgmt_acquire_sema(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
int i;
|
|
u32 tx_ctrl, mgmt_sema;
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK;
|
|
if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE)
|
|
break;
|
|
msleep(500);
|
|
}
|
|
|
|
if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE)
|
|
return 0;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
tx_ctrl = readl(base + NvRegTransmitterControl);
|
|
tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ;
|
|
writel(tx_ctrl, base + NvRegTransmitterControl);
|
|
|
|
/* verify that semaphore was acquired */
|
|
tx_ctrl = readl(base + NvRegTransmitterControl);
|
|
if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) &&
|
|
((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE)) {
|
|
np->mgmt_sema = 1;
|
|
return 1;
|
|
} else
|
|
udelay(50);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nv_mgmt_release_sema(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 tx_ctrl;
|
|
|
|
if (np->driver_data & DEV_HAS_MGMT_UNIT) {
|
|
if (np->mgmt_sema) {
|
|
tx_ctrl = readl(base + NvRegTransmitterControl);
|
|
tx_ctrl &= ~NVREG_XMITCTL_HOST_SEMA_ACQ;
|
|
writel(tx_ctrl, base + NvRegTransmitterControl);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static int nv_mgmt_get_version(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
u32 data_ready = readl(base + NvRegTransmitterControl);
|
|
u32 data_ready2 = 0;
|
|
unsigned long start;
|
|
int ready = 0;
|
|
|
|
writel(NVREG_MGMTUNITGETVERSION, base + NvRegMgmtUnitGetVersion);
|
|
writel(data_ready ^ NVREG_XMITCTL_DATA_START, base + NvRegTransmitterControl);
|
|
start = jiffies;
|
|
while (time_before(jiffies, start + 5*HZ)) {
|
|
data_ready2 = readl(base + NvRegTransmitterControl);
|
|
if ((data_ready & NVREG_XMITCTL_DATA_READY) != (data_ready2 & NVREG_XMITCTL_DATA_READY)) {
|
|
ready = 1;
|
|
break;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
}
|
|
|
|
if (!ready || (data_ready2 & NVREG_XMITCTL_DATA_ERROR))
|
|
return 0;
|
|
|
|
np->mgmt_version = readl(base + NvRegMgmtUnitVersion) & NVREG_MGMTUNITVERSION;
|
|
|
|
return 1;
|
|
}
|
|
|
|
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;
|
|
u32 low;
|
|
|
|
/* power up phy */
|
|
mii_rw(dev, np->phyaddr, MII_BMCR,
|
|
mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ) & ~BMCR_PDOWN);
|
|
|
|
nv_txrx_gate(dev, false);
|
|
/* erase previous misconfiguration */
|
|
if (np->driver_data & DEV_HAS_POWER_CNTRL)
|
|
nv_mac_reset(dev);
|
|
writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
|
|
writel(0, base + NvRegMulticastAddrB);
|
|
writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
|
|
writel(NVREG_MCASTMASKB_NONE, 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);
|
|
|
|
/* initialize descriptor rings */
|
|
set_bufsize(dev);
|
|
oom = nv_init_ring(dev);
|
|
|
|
writel(0, base + NvRegLinkSpeed);
|
|
writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
|
|
nv_txrx_reset(dev);
|
|
writel(0, base + NvRegUnknownSetupReg6);
|
|
|
|
np->in_shutdown = 0;
|
|
|
|
/* 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);
|
|
|
|
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);
|
|
if (reg_delay(dev, NvRegUnknownSetupReg5,
|
|
NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
|
|
NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX))
|
|
netdev_info(dev,
|
|
"%s: SetupReg5, Bit 31 remained off\n", __func__);
|
|
|
|
writel(0, base + NvRegMIIMask);
|
|
writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
|
|
writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
|
|
|
|
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(&low, sizeof(low));
|
|
low &= NVREG_SLOTTIME_MASK;
|
|
if (np->desc_ver == DESC_VER_1) {
|
|
writel(low|NVREG_SLOTTIME_DEFAULT, base + NvRegSlotTime);
|
|
} else {
|
|
if (!(np->driver_data & DEV_HAS_GEAR_MODE)) {
|
|
/* setup legacy backoff */
|
|
writel(NVREG_SLOTTIME_LEGBF_ENABLED|NVREG_SLOTTIME_10_100_FULL|low, base + NvRegSlotTime);
|
|
} else {
|
|
writel(NVREG_SLOTTIME_10_100_FULL, base + NvRegSlotTime);
|
|
nv_gear_backoff_reseed(dev);
|
|
}
|
|
}
|
|
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_MII_LINKCHANGE, base + NvRegMIIMask);
|
|
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_MASK_ALL, 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(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
|
|
writel(NVREG_MCASTMASKB_NONE, 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().
|
|
*/
|
|
readl(base + NvRegMIIStatus);
|
|
writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
|
|
|
|
/* set linkspeed to invalid value, thus force nv_update_linkspeed
|
|
* to init hw */
|
|
np->linkspeed = 0;
|
|
ret = nv_update_linkspeed(dev);
|
|
nv_start_rxtx(dev);
|
|
netif_start_queue(dev);
|
|
nv_napi_enable(dev);
|
|
|
|
if (ret) {
|
|
netif_carrier_on(dev);
|
|
} else {
|
|
netdev_info(dev, "no link during initialization\n");
|
|
netif_carrier_off(dev);
|
|
}
|
|
if (oom)
|
|
mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
|
|
|
|
/* start statistics timer */
|
|
if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3))
|
|
mod_timer(&np->stats_poll,
|
|
round_jiffies(jiffies + STATS_INTERVAL));
|
|
|
|
spin_unlock_irq(&np->lock);
|
|
|
|
/* If the loopback feature was set while the device was down, make sure
|
|
* that it's set correctly now.
|
|
*/
|
|
if (dev->features & NETIF_F_LOOPBACK)
|
|
nv_set_loopback(dev, dev->features);
|
|
|
|
return 0;
|
|
out_drain:
|
|
nv_drain_rxtx(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);
|
|
nv_napi_disable(dev);
|
|
synchronize_irq(np->pci_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_update_pause(dev, 0); /* otherwise stop_tx bricks NIC */
|
|
nv_stop_rxtx(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);
|
|
|
|
spin_unlock_irq(&np->lock);
|
|
|
|
nv_free_irq(dev);
|
|
|
|
nv_drain_rxtx(dev);
|
|
|
|
if (np->wolenabled || !phy_power_down) {
|
|
nv_txrx_gate(dev, false);
|
|
writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
|
|
nv_start_rx(dev);
|
|
} else {
|
|
/* power down phy */
|
|
mii_rw(dev, np->phyaddr, MII_BMCR,
|
|
mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ)|BMCR_PDOWN);
|
|
nv_txrx_gate(dev, true);
|
|
}
|
|
|
|
/* FIXME: power down nic */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct net_device_ops nv_netdev_ops = {
|
|
.ndo_open = nv_open,
|
|
.ndo_stop = nv_close,
|
|
.ndo_get_stats64 = nv_get_stats64,
|
|
.ndo_start_xmit = nv_start_xmit,
|
|
.ndo_tx_timeout = nv_tx_timeout,
|
|
.ndo_change_mtu = nv_change_mtu,
|
|
.ndo_fix_features = nv_fix_features,
|
|
.ndo_set_features = nv_set_features,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_mac_address = nv_set_mac_address,
|
|
.ndo_set_rx_mode = nv_set_multicast,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = nv_poll_controller,
|
|
#endif
|
|
};
|
|
|
|
static const struct net_device_ops nv_netdev_ops_optimized = {
|
|
.ndo_open = nv_open,
|
|
.ndo_stop = nv_close,
|
|
.ndo_get_stats64 = nv_get_stats64,
|
|
.ndo_start_xmit = nv_start_xmit_optimized,
|
|
.ndo_tx_timeout = nv_tx_timeout,
|
|
.ndo_change_mtu = nv_change_mtu,
|
|
.ndo_fix_features = nv_fix_features,
|
|
.ndo_set_features = nv_set_features,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_mac_address = nv_set_mac_address,
|
|
.ndo_set_rx_mode = nv_set_multicast,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = nv_poll_controller,
|
|
#endif
|
|
};
|
|
|
|
static int 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, txreg;
|
|
u32 phystate_orig = 0, phystate;
|
|
int phyinitialized = 0;
|
|
static int printed_version;
|
|
|
|
if (!printed_version++)
|
|
pr_info("Reverse Engineered nForce ethernet driver. Version %s.\n",
|
|
FORCEDETH_VERSION);
|
|
|
|
dev = alloc_etherdev(sizeof(struct fe_priv));
|
|
err = -ENOMEM;
|
|
if (!dev)
|
|
goto out;
|
|
|
|
np = netdev_priv(dev);
|
|
np->dev = dev;
|
|
np->pci_dev = pci_dev;
|
|
spin_lock_init(&np->lock);
|
|
spin_lock_init(&np->hwstats_lock);
|
|
SET_NETDEV_DEV(dev, &pci_dev->dev);
|
|
u64_stats_init(&np->swstats_rx_syncp);
|
|
u64_stats_init(&np->swstats_tx_syncp);
|
|
|
|
timer_setup(&np->oom_kick, nv_do_rx_refill, 0);
|
|
timer_setup(&np->nic_poll, nv_do_nic_poll, 0);
|
|
timer_setup(&np->stats_poll, nv_do_stats_poll, TIMER_DEFERRABLE);
|
|
|
|
err = pci_enable_device(pci_dev);
|
|
if (err)
|
|
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_V2|DEV_HAS_STATISTICS_V3))
|
|
np->register_size = NV_PCI_REGSZ_VER3;
|
|
else if (id->driver_data & DEV_HAS_STATISTICS_V1)
|
|
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++) {
|
|
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) {
|
|
dev_info(&pci_dev->dev, "Couldn't find register window\n");
|
|
goto out_relreg;
|
|
}
|
|
|
|
/* copy of driver data */
|
|
np->driver_data = id->driver_data;
|
|
/* copy of device id */
|
|
np->device_id = id->device;
|
|
|
|
/* 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_BIT_MASK(39)))
|
|
dev_info(&pci_dev->dev,
|
|
"64-bit DMA failed, using 32-bit addressing\n");
|
|
else
|
|
dev->features |= NETIF_F_HIGHDMA;
|
|
if (pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(39))) {
|
|
dev_info(&pci_dev->dev,
|
|
"64-bit DMA (consistent) failed, using 32-bit ring buffers\n");
|
|
}
|
|
}
|
|
} 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->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG |
|
|
NETIF_F_TSO | NETIF_F_RXCSUM;
|
|
}
|
|
|
|
np->vlanctl_bits = 0;
|
|
if (id->driver_data & DEV_HAS_VLAN) {
|
|
np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
|
|
dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX |
|
|
NETIF_F_HW_VLAN_CTAG_TX;
|
|
}
|
|
|
|
dev->features |= dev->hw_features;
|
|
|
|
/* Add loopback capability to the device. */
|
|
dev->hw_features |= NETIF_F_LOOPBACK;
|
|
|
|
/* MTU range: 64 - 1500 or 9100 */
|
|
dev->min_mtu = ETH_ZLEN + ETH_FCS_LEN;
|
|
dev->max_mtu = np->pkt_limit;
|
|
|
|
np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
|
|
if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
|
|
(id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
|
|
(id->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)) {
|
|
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;
|
|
|
|
np->rx_ring_size = RX_RING_DEFAULT;
|
|
np->tx_ring_size = TX_RING_DEFAULT;
|
|
|
|
if (!nv_optimized(np)) {
|
|
np->rx_ring.orig = dma_alloc_coherent(&pci_dev->dev,
|
|
sizeof(struct ring_desc) *
|
|
(np->rx_ring_size +
|
|
np->tx_ring_size),
|
|
&np->ring_addr,
|
|
GFP_KERNEL);
|
|
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 = dma_alloc_coherent(&pci_dev->dev,
|
|
sizeof(struct ring_desc_ex) *
|
|
(np->rx_ring_size +
|
|
np->tx_ring_size),
|
|
&np->ring_addr, GFP_KERNEL);
|
|
if (!np->rx_ring.ex)
|
|
goto out_unmap;
|
|
np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
|
|
}
|
|
np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
|
|
np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
|
|
if (!np->rx_skb || !np->tx_skb)
|
|
goto out_freering;
|
|
|
|
if (!nv_optimized(np))
|
|
dev->netdev_ops = &nv_netdev_ops;
|
|
else
|
|
dev->netdev_ops = &nv_netdev_ops_optimized;
|
|
|
|
netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
|
|
dev->ethtool_ops = &ops;
|
|
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);
|
|
|
|
/* check the workaround bit for correct mac address order */
|
|
txreg = readl(base + NvRegTransmitPoll);
|
|
if (id->driver_data & DEV_HAS_CORRECT_MACADDR) {
|
|
/* mac address is already in correct order */
|
|
dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff;
|
|
dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff;
|
|
dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
|
|
dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
|
|
dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff;
|
|
dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff;
|
|
} else if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) {
|
|
/* mac address is already in correct order */
|
|
dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff;
|
|
dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff;
|
|
dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
|
|
dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
|
|
dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff;
|
|
dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff;
|
|
/*
|
|
* Set orig mac address back to the reversed version.
|
|
* This flag will be cleared during low power transition.
|
|
* Therefore, we should always put back the reversed address.
|
|
*/
|
|
np->orig_mac[0] = (dev->dev_addr[5] << 0) + (dev->dev_addr[4] << 8) +
|
|
(dev->dev_addr[3] << 16) + (dev->dev_addr[2] << 24);
|
|
np->orig_mac[1] = (dev->dev_addr[1] << 0) + (dev->dev_addr[0] << 8);
|
|
} else {
|
|
/* need to reverse mac address to correct order */
|
|
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;
|
|
writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
|
|
dev_dbg(&pci_dev->dev,
|
|
"%s: set workaround bit for reversed mac addr\n",
|
|
__func__);
|
|
}
|
|
|
|
if (!is_valid_ether_addr(dev->dev_addr)) {
|
|
/*
|
|
* Bad mac address. At least one bios sets the mac address
|
|
* to 01:23:45:67:89:ab
|
|
*/
|
|
dev_err(&pci_dev->dev,
|
|
"Invalid MAC address detected: %pM - Please complain to your hardware vendor.\n",
|
|
dev->dev_addr);
|
|
eth_hw_addr_random(dev);
|
|
dev_err(&pci_dev->dev,
|
|
"Using random MAC address: %pM\n", dev->dev_addr);
|
|
}
|
|
|
|
/* set mac address */
|
|
nv_copy_mac_to_hw(dev);
|
|
|
|
/* disable WOL */
|
|
writel(0, base + NvRegWakeUpFlags);
|
|
np->wolenabled = 0;
|
|
device_set_wakeup_enable(&pci_dev->dev, false);
|
|
|
|
if (id->driver_data & DEV_HAS_POWER_CNTRL) {
|
|
|
|
/* take phy and nic out of low power mode */
|
|
powerstate = readl(base + NvRegPowerState2);
|
|
powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
|
|
if ((id->driver_data & DEV_NEED_LOW_POWER_FIX) &&
|
|
pci_dev->revision >= 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;
|
|
|
|
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) {
|
|
/* msix has had reported issues when modifying irqmask
|
|
as in the case of napi, therefore, disable for now
|
|
*/
|
|
#if 0
|
|
np->msi_flags |= NV_MSI_X_CAPABLE;
|
|
#endif
|
|
}
|
|
|
|
if (optimization_mode == NV_OPTIMIZATION_MODE_CPU) {
|
|
np->irqmask = NVREG_IRQMASK_CPU;
|
|
if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
|
|
np->msi_flags |= 0x0001;
|
|
} else if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC &&
|
|
!(id->driver_data & DEV_NEED_TIMERIRQ)) {
|
|
/* start off in throughput mode */
|
|
np->irqmask = NVREG_IRQMASK_THROUGHPUT;
|
|
/* remove support for msix mode */
|
|
np->msi_flags &= ~NV_MSI_X_CAPABLE;
|
|
} else {
|
|
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;
|
|
}
|
|
|
|
if (id->driver_data & DEV_NEED_TIMERIRQ)
|
|
np->irqmask |= NVREG_IRQ_TIMER;
|
|
if (id->driver_data & DEV_NEED_LINKTIMER) {
|
|
np->need_linktimer = 1;
|
|
np->link_timeout = jiffies + LINK_TIMEOUT;
|
|
} else {
|
|
np->need_linktimer = 0;
|
|
}
|
|
|
|
/* Limit the number of tx's outstanding for hw bug */
|
|
if (id->driver_data & DEV_NEED_TX_LIMIT) {
|
|
np->tx_limit = 1;
|
|
if (((id->driver_data & DEV_NEED_TX_LIMIT2) == DEV_NEED_TX_LIMIT2) &&
|
|
pci_dev->revision >= 0xA2)
|
|
np->tx_limit = 0;
|
|
}
|
|
|
|
/* clear phy state and temporarily halt phy interrupts */
|
|
writel(0, base + NvRegMIIMask);
|
|
phystate = readl(base + NvRegAdapterControl);
|
|
if (phystate & NVREG_ADAPTCTL_RUNNING) {
|
|
phystate_orig = 1;
|
|
phystate &= ~NVREG_ADAPTCTL_RUNNING;
|
|
writel(phystate, base + NvRegAdapterControl);
|
|
}
|
|
writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
|
|
|
|
if (id->driver_data & DEV_HAS_MGMT_UNIT) {
|
|
/* management unit running on the mac? */
|
|
if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST) &&
|
|
(readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) &&
|
|
nv_mgmt_acquire_sema(dev) &&
|
|
nv_mgmt_get_version(dev)) {
|
|
np->mac_in_use = 1;
|
|
if (np->mgmt_version > 0)
|
|
np->mac_in_use = readl(base + NvRegMgmtUnitControl) & NVREG_MGMTUNITCONTROL_INUSE;
|
|
/* management unit setup the phy already? */
|
|
if (np->mac_in_use &&
|
|
((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
|
|
NVREG_XMITCTL_SYNC_PHY_INIT)) {
|
|
/* phy is inited by mgmt unit */
|
|
phyinitialized = 1;
|
|
} else {
|
|
/* we need to init the phy */
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
|
|
np->phy_model = id2 & PHYID2_MODEL_MASK;
|
|
id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
|
|
id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
|
|
np->phyaddr = phyaddr;
|
|
np->phy_oui = id1 | id2;
|
|
|
|
/* Realtek hardcoded phy id1 to all zero's on certain phys */
|
|
if (np->phy_oui == PHY_OUI_REALTEK2)
|
|
np->phy_oui = PHY_OUI_REALTEK;
|
|
/* Setup phy revision for Realtek */
|
|
if (np->phy_oui == PHY_OUI_REALTEK && np->phy_model == PHY_MODEL_REALTEK_8211)
|
|
np->phy_rev = mii_rw(dev, phyaddr, MII_RESV1, MII_READ) & PHY_REV_MASK;
|
|
|
|
break;
|
|
}
|
|
if (i == 33) {
|
|
dev_info(&pci_dev->dev, "open: Could not find a valid PHY\n");
|
|
goto out_error;
|
|
}
|
|
|
|
if (!phyinitialized) {
|
|
/* reset it */
|
|
phy_init(dev);
|
|
} else {
|
|
/* see if it is a gigabit phy */
|
|
u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
|
|
if (mii_status & PHY_GIGABIT)
|
|
np->gigabit = PHY_GIGABIT;
|
|
}
|
|
|
|
/* 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) {
|
|
dev_info(&pci_dev->dev, "unable to register netdev: %d\n", err);
|
|
goto out_error;
|
|
}
|
|
|
|
netif_carrier_off(dev);
|
|
|
|
/* Some NICs freeze when TX pause is enabled while NIC is
|
|
* down, and this stays across warm reboots. The sequence
|
|
* below should be enough to recover from that state.
|
|
*/
|
|
nv_update_pause(dev, 0);
|
|
nv_start_tx(dev);
|
|
nv_stop_tx(dev);
|
|
|
|
if (id->driver_data & DEV_HAS_VLAN)
|
|
nv_vlan_mode(dev, dev->features);
|
|
|
|
dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n",
|
|
dev->name, np->phy_oui, np->phyaddr, dev->dev_addr);
|
|
|
|
dev_info(&pci_dev->dev, "%s%s%s%s%s%s%s%s%s%s%sdesc-v%u\n",
|
|
dev->features & NETIF_F_HIGHDMA ? "highdma " : "",
|
|
dev->features & (NETIF_F_IP_CSUM | NETIF_F_SG) ?
|
|
"csum " : "",
|
|
dev->features & (NETIF_F_HW_VLAN_CTAG_RX |
|
|
NETIF_F_HW_VLAN_CTAG_TX) ?
|
|
"vlan " : "",
|
|
dev->features & (NETIF_F_LOOPBACK) ?
|
|
"loopback " : "",
|
|
id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "",
|
|
id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "",
|
|
id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "",
|
|
np->gigabit == PHY_GIGABIT ? "gbit " : "",
|
|
np->need_linktimer ? "lnktim " : "",
|
|
np->msi_flags & NV_MSI_CAPABLE ? "msi " : "",
|
|
np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "",
|
|
np->desc_ver);
|
|
|
|
return 0;
|
|
|
|
out_error:
|
|
if (phystate_orig)
|
|
writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
|
|
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 nv_restore_phy(struct net_device *dev)
|
|
{
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u16 phy_reserved, mii_control;
|
|
|
|
if (np->phy_oui == PHY_OUI_REALTEK &&
|
|
np->phy_model == PHY_MODEL_REALTEK_8201 &&
|
|
phy_cross == NV_CROSSOVER_DETECTION_DISABLED) {
|
|
mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3);
|
|
phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ);
|
|
phy_reserved &= ~PHY_REALTEK_INIT_MSK1;
|
|
phy_reserved |= PHY_REALTEK_INIT8;
|
|
mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved);
|
|
mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1);
|
|
|
|
/* restart auto negotiation */
|
|
mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
|
|
mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
|
|
mii_rw(dev, np->phyaddr, MII_BMCR, mii_control);
|
|
}
|
|
}
|
|
|
|
static void nv_restore_mac_addr(struct pci_dev *pci_dev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pci_dev);
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(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);
|
|
writel(readl(base + NvRegTransmitPoll) & ~NVREG_TRANSMITPOLL_MAC_ADDR_REV,
|
|
base + NvRegTransmitPoll);
|
|
}
|
|
|
|
static void nv_remove(struct pci_dev *pci_dev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pci_dev);
|
|
|
|
unregister_netdev(dev);
|
|
|
|
nv_restore_mac_addr(pci_dev);
|
|
|
|
/* restore any phy related changes */
|
|
nv_restore_phy(dev);
|
|
|
|
nv_mgmt_release_sema(dev);
|
|
|
|
/* free all structures */
|
|
free_rings(dev);
|
|
iounmap(get_hwbase(dev));
|
|
pci_release_regions(pci_dev);
|
|
pci_disable_device(pci_dev);
|
|
free_netdev(dev);
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int nv_suspend(struct device *device)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(device);
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
int i;
|
|
|
|
if (netif_running(dev)) {
|
|
/* Gross. */
|
|
nv_close(dev);
|
|
}
|
|
netif_device_detach(dev);
|
|
|
|
/* save non-pci configuration space */
|
|
for (i = 0; i <= np->register_size/sizeof(u32); i++)
|
|
np->saved_config_space[i] = readl(base + i*sizeof(u32));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nv_resume(struct device *device)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(device);
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
u8 __iomem *base = get_hwbase(dev);
|
|
int i, rc = 0;
|
|
|
|
/* restore non-pci configuration space */
|
|
for (i = 0; i <= np->register_size/sizeof(u32); i++)
|
|
writel(np->saved_config_space[i], base+i*sizeof(u32));
|
|
|
|
if (np->driver_data & DEV_NEED_MSI_FIX)
|
|
pci_write_config_dword(pdev, NV_MSI_PRIV_OFFSET, NV_MSI_PRIV_VALUE);
|
|
|
|
/* restore phy state, including autoneg */
|
|
phy_init(dev);
|
|
|
|
netif_device_attach(dev);
|
|
if (netif_running(dev)) {
|
|
rc = nv_open(dev);
|
|
nv_set_multicast(dev);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static SIMPLE_DEV_PM_OPS(nv_pm_ops, nv_suspend, nv_resume);
|
|
#define NV_PM_OPS (&nv_pm_ops)
|
|
|
|
#else
|
|
#define NV_PM_OPS NULL
|
|
#endif /* CONFIG_PM_SLEEP */
|
|
|
|
#ifdef CONFIG_PM
|
|
static void nv_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct fe_priv *np = netdev_priv(dev);
|
|
|
|
if (netif_running(dev))
|
|
nv_close(dev);
|
|
|
|
/*
|
|
* Restore the MAC so a kernel started by kexec won't get confused.
|
|
* If we really go for poweroff, we must not restore the MAC,
|
|
* otherwise the MAC for WOL will be reversed at least on some boards.
|
|
*/
|
|
if (system_state != SYSTEM_POWER_OFF)
|
|
nv_restore_mac_addr(pdev);
|
|
|
|
pci_disable_device(pdev);
|
|
/*
|
|
* Apparently it is not possible to reinitialise from D3 hot,
|
|
* only put the device into D3 if we really go for poweroff.
|
|
*/
|
|
if (system_state == SYSTEM_POWER_OFF) {
|
|
pci_wake_from_d3(pdev, np->wolenabled);
|
|
pci_set_power_state(pdev, PCI_D3hot);
|
|
}
|
|
}
|
|
#else
|
|
#define nv_shutdown NULL
|
|
#endif /* CONFIG_PM */
|
|
|
|
static const struct pci_device_id pci_tbl[] = {
|
|
{ /* nForce Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x01C3),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
|
|
},
|
|
{ /* nForce2 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0066),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
|
|
},
|
|
{ /* nForce3 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x00D6),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
|
|
},
|
|
{ /* nForce3 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0086),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
|
|
},
|
|
{ /* nForce3 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x008C),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
|
|
},
|
|
{ /* nForce3 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x00E6),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
|
|
},
|
|
{ /* nForce3 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x00DF),
|
|
.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
|
|
},
|
|
{ /* CK804 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0056),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
|
|
},
|
|
{ /* CK804 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0057),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
|
|
},
|
|
{ /* MCP04 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0037),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
|
|
},
|
|
{ /* MCP04 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0038),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
|
|
},
|
|
{ /* MCP51 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0268),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1|DEV_NEED_LOW_POWER_FIX,
|
|
},
|
|
{ /* MCP51 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0269),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1|DEV_NEED_LOW_POWER_FIX,
|
|
},
|
|
{ /* MCP55 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0372),
|
|
.driver_data = 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_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP55 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0373),
|
|
.driver_data = 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_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP61 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x03E5),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP61 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x03E6),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP61 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x03EE),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP61 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x03EF),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP65 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0450),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP65 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0451),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP65 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0452),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP65 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0453),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP67 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x054C),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP67 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x054D),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP67 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x054E),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP67 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x054F),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP73 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x07DC),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP73 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x07DD),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP73 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x07DE),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP73 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x07DF),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP77 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0760),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP77 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0761),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP77 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0762),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP77 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0763),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP79 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0AB0),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP79 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0AB1),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP79 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0AB2),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP79 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0AB3),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
|
|
},
|
|
{ /* MCP89 Ethernet Controller */
|
|
PCI_DEVICE(0x10DE, 0x0D7D),
|
|
.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX,
|
|
},
|
|
{0,},
|
|
};
|
|
|
|
static struct pci_driver forcedeth_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = pci_tbl,
|
|
.probe = nv_probe,
|
|
.remove = nv_remove,
|
|
.shutdown = nv_shutdown,
|
|
.driver.pm = NV_PM_OPS,
|
|
};
|
|
|
|
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. In dynamic mode (2), the mode toggles between throughput and CPU mode based on network load.");
|
|
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_param(phy_cross, int, 0);
|
|
MODULE_PARM_DESC(phy_cross, "Phy crossover detection for Realtek 8201 phy is enabled by setting to 1 and disabled by setting to 0.");
|
|
module_param(phy_power_down, int, 0);
|
|
MODULE_PARM_DESC(phy_power_down, "Power down phy and disable link when interface is down (1), or leave phy powered up (0).");
|
|
module_param(debug_tx_timeout, bool, 0);
|
|
MODULE_PARM_DESC(debug_tx_timeout,
|
|
"Dump tx related registers and ring when tx_timeout happens");
|
|
|
|
module_pci_driver(forcedeth_pci_driver);
|
|
MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
|
|
MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(pci, pci_tbl);
|