mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 03:30:54 +07:00
e7dfc8dbdf
This patch fixes hang in dmfe driver on attempt of sending a big packet. Without this patch the code stops the queue and never wakes it again. Signed-off-by: Alexander V. Lukyanov <lav@netis.ru> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2259 lines
59 KiB
C
2259 lines
59 KiB
C
/*
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A Davicom DM9102/DM9102A/DM9102A+DM9801/DM9102A+DM9802 NIC fast
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ethernet driver for Linux.
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Copyright (C) 1997 Sten Wang
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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DAVICOM Web-Site: www.davicom.com.tw
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Author: Sten Wang, 886-3-5798797-8517, E-mail: sten_wang@davicom.com.tw
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Maintainer: Tobias Ringstrom <tori@unhappy.mine.nu>
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(C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved.
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Marcelo Tosatti <marcelo@conectiva.com.br> :
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Made it compile in 2.3 (device to net_device)
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Alan Cox <alan@lxorguk.ukuu.org.uk> :
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Cleaned up for kernel merge.
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Removed the back compatibility support
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Reformatted, fixing spelling etc as I went
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Removed IRQ 0-15 assumption
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Jeff Garzik <jgarzik@pobox.com> :
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Updated to use new PCI driver API.
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Resource usage cleanups.
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Report driver version to user.
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Tobias Ringstrom <tori@unhappy.mine.nu> :
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Cleaned up and added SMP safety. Thanks go to Jeff Garzik,
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Andrew Morton and Frank Davis for the SMP safety fixes.
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Vojtech Pavlik <vojtech@suse.cz> :
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Cleaned up pointer arithmetics.
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Fixed a lot of 64bit issues.
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Cleaned up printk()s a bit.
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Fixed some obvious big endian problems.
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Tobias Ringstrom <tori@unhappy.mine.nu> :
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Use time_after for jiffies calculation. Added ethtool
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support. Updated PCI resource allocation. Do not
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forget to unmap PCI mapped skbs.
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Alan Cox <alan@lxorguk.ukuu.org.uk>
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Added new PCI identifiers provided by Clear Zhang at ALi
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for their 1563 ethernet device.
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TODO
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Check on 64 bit boxes.
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Check and fix on big endian boxes.
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Test and make sure PCI latency is now correct for all cases.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define DRV_NAME "dmfe"
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#define DRV_VERSION "1.36.4"
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#define DRV_RELDATE "2002-01-17"
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/ptrace.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/skbuff.h>
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#include <linux/delay.h>
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#include <linux/spinlock.h>
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#include <linux/crc32.h>
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#include <linux/bitops.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <asm/uaccess.h>
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#include <asm/irq.h>
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#ifdef CONFIG_TULIP_DM910X
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#include <linux/of.h>
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#endif
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/* Board/System/Debug information/definition ---------------- */
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#define PCI_DM9132_ID 0x91321282 /* Davicom DM9132 ID */
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#define PCI_DM9102_ID 0x91021282 /* Davicom DM9102 ID */
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#define PCI_DM9100_ID 0x91001282 /* Davicom DM9100 ID */
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#define PCI_DM9009_ID 0x90091282 /* Davicom DM9009 ID */
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#define DM9102_IO_SIZE 0x80
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#define DM9102A_IO_SIZE 0x100
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#define TX_MAX_SEND_CNT 0x1 /* Maximum tx packet per time */
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#define TX_DESC_CNT 0x10 /* Allocated Tx descriptors */
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#define RX_DESC_CNT 0x20 /* Allocated Rx descriptors */
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#define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */
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#define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */
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#define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT)
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#define TX_BUF_ALLOC 0x600
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#define RX_ALLOC_SIZE 0x620
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#define DM910X_RESET 1
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#define CR0_DEFAULT 0x00E00000 /* TX & RX burst mode */
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#define CR6_DEFAULT 0x00080000 /* HD */
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#define CR7_DEFAULT 0x180c1
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#define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */
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#define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */
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#define MAX_PACKET_SIZE 1514
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#define DMFE_MAX_MULTICAST 14
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#define RX_COPY_SIZE 100
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#define MAX_CHECK_PACKET 0x8000
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#define DM9801_NOISE_FLOOR 8
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#define DM9802_NOISE_FLOOR 5
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#define DMFE_WOL_LINKCHANGE 0x20000000
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#define DMFE_WOL_SAMPLEPACKET 0x10000000
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#define DMFE_WOL_MAGICPACKET 0x08000000
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#define DMFE_10MHF 0
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#define DMFE_100MHF 1
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#define DMFE_10MFD 4
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#define DMFE_100MFD 5
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#define DMFE_AUTO 8
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#define DMFE_1M_HPNA 0x10
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#define DMFE_TXTH_72 0x400000 /* TX TH 72 byte */
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#define DMFE_TXTH_96 0x404000 /* TX TH 96 byte */
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#define DMFE_TXTH_128 0x0000 /* TX TH 128 byte */
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#define DMFE_TXTH_256 0x4000 /* TX TH 256 byte */
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#define DMFE_TXTH_512 0x8000 /* TX TH 512 byte */
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#define DMFE_TXTH_1K 0xC000 /* TX TH 1K byte */
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#define DMFE_TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */
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#define DMFE_TX_TIMEOUT ((3*HZ)/2) /* tx packet time-out time 1.5 s" */
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#define DMFE_TX_KICK (HZ/2) /* tx packet Kick-out time 0.5 s" */
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#define DMFE_DBUG(dbug_now, msg, value) \
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do { \
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if (dmfe_debug || (dbug_now)) \
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pr_err("%s %lx\n", \
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(msg), (long) (value)); \
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} while (0)
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#define SHOW_MEDIA_TYPE(mode) \
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pr_info("Change Speed to %sMhz %s duplex\n" , \
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(mode & 1) ? "100":"10", \
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(mode & 4) ? "full":"half");
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/* CR9 definition: SROM/MII */
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#define CR9_SROM_READ 0x4800
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#define CR9_SRCS 0x1
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#define CR9_SRCLK 0x2
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#define CR9_CRDOUT 0x8
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#define SROM_DATA_0 0x0
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#define SROM_DATA_1 0x4
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#define PHY_DATA_1 0x20000
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#define PHY_DATA_0 0x00000
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#define MDCLKH 0x10000
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#define PHY_POWER_DOWN 0x800
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#define SROM_V41_CODE 0x14
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#define SROM_CLK_WRITE(data, ioaddr) \
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outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \
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udelay(5); \
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outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr); \
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udelay(5); \
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outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \
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udelay(5);
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#define __CHK_IO_SIZE(pci_id, dev_rev) \
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(( ((pci_id)==PCI_DM9132_ID) || ((dev_rev) >= 0x30) ) ? \
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DM9102A_IO_SIZE: DM9102_IO_SIZE)
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#define CHK_IO_SIZE(pci_dev) \
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(__CHK_IO_SIZE(((pci_dev)->device << 16) | (pci_dev)->vendor, \
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(pci_dev)->revision))
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/* Sten Check */
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#define DEVICE net_device
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/* Structure/enum declaration ------------------------------- */
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struct tx_desc {
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__le32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
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char *tx_buf_ptr; /* Data for us */
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struct tx_desc *next_tx_desc;
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} __attribute__(( aligned(32) ));
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struct rx_desc {
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__le32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */
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struct sk_buff *rx_skb_ptr; /* Data for us */
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struct rx_desc *next_rx_desc;
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} __attribute__(( aligned(32) ));
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struct dmfe_board_info {
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u32 chip_id; /* Chip vendor/Device ID */
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u8 chip_revision; /* Chip revision */
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struct DEVICE *next_dev; /* next device */
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struct pci_dev *pdev; /* PCI device */
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spinlock_t lock;
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long ioaddr; /* I/O base address */
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u32 cr0_data;
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u32 cr5_data;
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u32 cr6_data;
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u32 cr7_data;
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u32 cr15_data;
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/* pointer for memory physical address */
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dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */
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dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */
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dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */
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dma_addr_t first_tx_desc_dma;
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dma_addr_t first_rx_desc_dma;
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/* descriptor pointer */
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unsigned char *buf_pool_ptr; /* Tx buffer pool memory */
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unsigned char *buf_pool_start; /* Tx buffer pool align dword */
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unsigned char *desc_pool_ptr; /* descriptor pool memory */
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struct tx_desc *first_tx_desc;
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struct tx_desc *tx_insert_ptr;
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struct tx_desc *tx_remove_ptr;
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struct rx_desc *first_rx_desc;
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struct rx_desc *rx_insert_ptr;
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struct rx_desc *rx_ready_ptr; /* packet come pointer */
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unsigned long tx_packet_cnt; /* transmitted packet count */
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unsigned long tx_queue_cnt; /* wait to send packet count */
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unsigned long rx_avail_cnt; /* available rx descriptor count */
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unsigned long interval_rx_cnt; /* rx packet count a callback time */
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u16 HPNA_command; /* For HPNA register 16 */
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u16 HPNA_timer; /* For HPNA remote device check */
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u16 dbug_cnt;
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u16 NIC_capability; /* NIC media capability */
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u16 PHY_reg4; /* Saved Phyxcer register 4 value */
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u8 HPNA_present; /* 0:none, 1:DM9801, 2:DM9802 */
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u8 chip_type; /* Keep DM9102A chip type */
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u8 media_mode; /* user specify media mode */
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u8 op_mode; /* real work media mode */
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u8 phy_addr;
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u8 wait_reset; /* Hardware failed, need to reset */
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u8 dm910x_chk_mode; /* Operating mode check */
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u8 first_in_callback; /* Flag to record state */
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u8 wol_mode; /* user WOL settings */
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struct timer_list timer;
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/* Driver defined statistic counter */
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unsigned long tx_fifo_underrun;
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unsigned long tx_loss_carrier;
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unsigned long tx_no_carrier;
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unsigned long tx_late_collision;
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unsigned long tx_excessive_collision;
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unsigned long tx_jabber_timeout;
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unsigned long reset_count;
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unsigned long reset_cr8;
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unsigned long reset_fatal;
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unsigned long reset_TXtimeout;
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/* NIC SROM data */
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unsigned char srom[128];
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};
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enum dmfe_offsets {
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DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20,
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DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48,
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DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70,
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DCR15 = 0x78
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};
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enum dmfe_CR6_bits {
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CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80,
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CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000,
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CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000
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};
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/* Global variable declaration ----------------------------- */
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static int __devinitdata printed_version;
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static const char version[] __devinitconst =
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KERN_INFO DRV_NAME ": Davicom DM9xxx net driver, version "
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DRV_VERSION " (" DRV_RELDATE ")\n";
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static int dmfe_debug;
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static unsigned char dmfe_media_mode = DMFE_AUTO;
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static u32 dmfe_cr6_user_set;
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/* For module input parameter */
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static int debug;
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static u32 cr6set;
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static unsigned char mode = 8;
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static u8 chkmode = 1;
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static u8 HPNA_mode; /* Default: Low Power/High Speed */
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static u8 HPNA_rx_cmd; /* Default: Disable Rx remote command */
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static u8 HPNA_tx_cmd; /* Default: Don't issue remote command */
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static u8 HPNA_NoiseFloor; /* Default: HPNA NoiseFloor */
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static u8 SF_mode; /* Special Function: 1:VLAN, 2:RX Flow Control
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4: TX pause packet */
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/* function declaration ------------------------------------- */
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static int dmfe_open(struct DEVICE *);
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static netdev_tx_t dmfe_start_xmit(struct sk_buff *, struct DEVICE *);
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static int dmfe_stop(struct DEVICE *);
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static void dmfe_set_filter_mode(struct DEVICE *);
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static const struct ethtool_ops netdev_ethtool_ops;
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static u16 read_srom_word(long ,int);
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static irqreturn_t dmfe_interrupt(int , void *);
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void poll_dmfe (struct net_device *dev);
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#endif
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static void dmfe_descriptor_init(struct dmfe_board_info *, unsigned long);
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static void allocate_rx_buffer(struct dmfe_board_info *);
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static void update_cr6(u32, unsigned long);
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static void send_filter_frame(struct DEVICE *);
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static void dm9132_id_table(struct DEVICE *);
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static u16 phy_read(unsigned long, u8, u8, u32);
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static void phy_write(unsigned long, u8, u8, u16, u32);
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static void phy_write_1bit(unsigned long, u32);
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static u16 phy_read_1bit(unsigned long);
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static u8 dmfe_sense_speed(struct dmfe_board_info *);
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static void dmfe_process_mode(struct dmfe_board_info *);
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static void dmfe_timer(unsigned long);
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static inline u32 cal_CRC(unsigned char *, unsigned int, u8);
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static void dmfe_rx_packet(struct DEVICE *, struct dmfe_board_info *);
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static void dmfe_free_tx_pkt(struct DEVICE *, struct dmfe_board_info *);
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static void dmfe_reuse_skb(struct dmfe_board_info *, struct sk_buff *);
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static void dmfe_dynamic_reset(struct DEVICE *);
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static void dmfe_free_rxbuffer(struct dmfe_board_info *);
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static void dmfe_init_dm910x(struct DEVICE *);
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static void dmfe_parse_srom(struct dmfe_board_info *);
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static void dmfe_program_DM9801(struct dmfe_board_info *, int);
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static void dmfe_program_DM9802(struct dmfe_board_info *);
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static void dmfe_HPNA_remote_cmd_chk(struct dmfe_board_info * );
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static void dmfe_set_phyxcer(struct dmfe_board_info *);
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/* DM910X network board routine ---------------------------- */
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static const struct net_device_ops netdev_ops = {
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.ndo_open = dmfe_open,
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.ndo_stop = dmfe_stop,
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.ndo_start_xmit = dmfe_start_xmit,
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.ndo_set_multicast_list = dmfe_set_filter_mode,
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.ndo_change_mtu = eth_change_mtu,
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.ndo_set_mac_address = eth_mac_addr,
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.ndo_validate_addr = eth_validate_addr,
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#ifdef CONFIG_NET_POLL_CONTROLLER
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.ndo_poll_controller = poll_dmfe,
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#endif
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};
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/*
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* Search DM910X board ,allocate space and register it
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*/
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static int __devinit dmfe_init_one (struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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struct dmfe_board_info *db; /* board information structure */
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struct net_device *dev;
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u32 pci_pmr;
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int i, err;
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DMFE_DBUG(0, "dmfe_init_one()", 0);
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if (!printed_version++)
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printk(version);
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/*
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* SPARC on-board DM910x chips should be handled by the main
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* tulip driver, except for early DM9100s.
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*/
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#ifdef CONFIG_TULIP_DM910X
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if ((ent->driver_data == PCI_DM9100_ID && pdev->revision >= 0x30) ||
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ent->driver_data == PCI_DM9102_ID) {
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struct device_node *dp = pci_device_to_OF_node(pdev);
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if (dp && of_get_property(dp, "local-mac-address", NULL)) {
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pr_info("skipping on-board DM910x (use tulip)\n");
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return -ENODEV;
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}
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}
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#endif
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/* Init network device */
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dev = alloc_etherdev(sizeof(*db));
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if (dev == NULL)
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return -ENOMEM;
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SET_NETDEV_DEV(dev, &pdev->dev);
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if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
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pr_warning("32-bit PCI DMA not available\n");
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err = -ENODEV;
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goto err_out_free;
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}
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/* Enable Master/IO access, Disable memory access */
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err = pci_enable_device(pdev);
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if (err)
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goto err_out_free;
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if (!pci_resource_start(pdev, 0)) {
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pr_err("I/O base is zero\n");
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err = -ENODEV;
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goto err_out_disable;
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}
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if (pci_resource_len(pdev, 0) < (CHK_IO_SIZE(pdev)) ) {
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pr_err("Allocated I/O size too small\n");
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err = -ENODEV;
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goto err_out_disable;
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}
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|
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#if 0 /* pci_{enable_device,set_master} sets minimum latency for us now */
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|
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/* Set Latency Timer 80h */
|
|
/* FIXME: setting values > 32 breaks some SiS 559x stuff.
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|
Need a PCI quirk.. */
|
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|
|
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
|
|
#endif
|
|
|
|
if (pci_request_regions(pdev, DRV_NAME)) {
|
|
pr_err("Failed to request PCI regions\n");
|
|
err = -ENODEV;
|
|
goto err_out_disable;
|
|
}
|
|
|
|
/* Init system & device */
|
|
db = netdev_priv(dev);
|
|
|
|
/* Allocate Tx/Rx descriptor memory */
|
|
db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) *
|
|
DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
|
|
if (!db->desc_pool_ptr)
|
|
goto err_out_res;
|
|
|
|
db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC *
|
|
TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
|
|
if (!db->buf_pool_ptr)
|
|
goto err_out_free_desc;
|
|
|
|
db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
|
|
db->first_tx_desc_dma = db->desc_pool_dma_ptr;
|
|
db->buf_pool_start = db->buf_pool_ptr;
|
|
db->buf_pool_dma_start = db->buf_pool_dma_ptr;
|
|
|
|
db->chip_id = ent->driver_data;
|
|
db->ioaddr = pci_resource_start(pdev, 0);
|
|
db->chip_revision = pdev->revision;
|
|
db->wol_mode = 0;
|
|
|
|
db->pdev = pdev;
|
|
|
|
dev->base_addr = db->ioaddr;
|
|
dev->irq = pdev->irq;
|
|
pci_set_drvdata(pdev, dev);
|
|
dev->netdev_ops = &netdev_ops;
|
|
dev->ethtool_ops = &netdev_ethtool_ops;
|
|
netif_carrier_off(dev);
|
|
spin_lock_init(&db->lock);
|
|
|
|
pci_read_config_dword(pdev, 0x50, &pci_pmr);
|
|
pci_pmr &= 0x70000;
|
|
if ( (pci_pmr == 0x10000) && (db->chip_revision == 0x31) )
|
|
db->chip_type = 1; /* DM9102A E3 */
|
|
else
|
|
db->chip_type = 0;
|
|
|
|
/* read 64 word srom data */
|
|
for (i = 0; i < 64; i++)
|
|
((__le16 *) db->srom)[i] =
|
|
cpu_to_le16(read_srom_word(db->ioaddr, i));
|
|
|
|
/* Set Node address */
|
|
for (i = 0; i < 6; i++)
|
|
dev->dev_addr[i] = db->srom[20 + i];
|
|
|
|
err = register_netdev (dev);
|
|
if (err)
|
|
goto err_out_free_buf;
|
|
|
|
dev_info(&dev->dev, "Davicom DM%04lx at pci%s, %pM, irq %d\n",
|
|
ent->driver_data >> 16,
|
|
pci_name(pdev), dev->dev_addr, dev->irq);
|
|
|
|
pci_set_master(pdev);
|
|
|
|
return 0;
|
|
|
|
err_out_free_buf:
|
|
pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
|
|
db->buf_pool_ptr, db->buf_pool_dma_ptr);
|
|
err_out_free_desc:
|
|
pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20,
|
|
db->desc_pool_ptr, db->desc_pool_dma_ptr);
|
|
err_out_res:
|
|
pci_release_regions(pdev);
|
|
err_out_disable:
|
|
pci_disable_device(pdev);
|
|
err_out_free:
|
|
pci_set_drvdata(pdev, NULL);
|
|
free_netdev(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
static void __devexit dmfe_remove_one (struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
|
|
DMFE_DBUG(0, "dmfe_remove_one()", 0);
|
|
|
|
if (dev) {
|
|
|
|
unregister_netdev(dev);
|
|
|
|
pci_free_consistent(db->pdev, sizeof(struct tx_desc) *
|
|
DESC_ALL_CNT + 0x20, db->desc_pool_ptr,
|
|
db->desc_pool_dma_ptr);
|
|
pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
|
|
db->buf_pool_ptr, db->buf_pool_dma_ptr);
|
|
pci_release_regions(pdev);
|
|
free_netdev(dev); /* free board information */
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
DMFE_DBUG(0, "dmfe_remove_one() exit", 0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Open the interface.
|
|
* The interface is opened whenever "ifconfig" actives it.
|
|
*/
|
|
|
|
static int dmfe_open(struct DEVICE *dev)
|
|
{
|
|
int ret;
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
|
|
DMFE_DBUG(0, "dmfe_open", 0);
|
|
|
|
ret = request_irq(dev->irq, dmfe_interrupt,
|
|
IRQF_SHARED, dev->name, dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* system variable init */
|
|
db->cr6_data = CR6_DEFAULT | dmfe_cr6_user_set;
|
|
db->tx_packet_cnt = 0;
|
|
db->tx_queue_cnt = 0;
|
|
db->rx_avail_cnt = 0;
|
|
db->wait_reset = 0;
|
|
|
|
db->first_in_callback = 0;
|
|
db->NIC_capability = 0xf; /* All capability*/
|
|
db->PHY_reg4 = 0x1e0;
|
|
|
|
/* CR6 operation mode decision */
|
|
if ( !chkmode || (db->chip_id == PCI_DM9132_ID) ||
|
|
(db->chip_revision >= 0x30) ) {
|
|
db->cr6_data |= DMFE_TXTH_256;
|
|
db->cr0_data = CR0_DEFAULT;
|
|
db->dm910x_chk_mode=4; /* Enter the normal mode */
|
|
} else {
|
|
db->cr6_data |= CR6_SFT; /* Store & Forward mode */
|
|
db->cr0_data = 0;
|
|
db->dm910x_chk_mode = 1; /* Enter the check mode */
|
|
}
|
|
|
|
/* Initialize DM910X board */
|
|
dmfe_init_dm910x(dev);
|
|
|
|
/* Active System Interface */
|
|
netif_wake_queue(dev);
|
|
|
|
/* set and active a timer process */
|
|
init_timer(&db->timer);
|
|
db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
|
|
db->timer.data = (unsigned long)dev;
|
|
db->timer.function = dmfe_timer;
|
|
add_timer(&db->timer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Initialize DM910X board
|
|
* Reset DM910X board
|
|
* Initialize TX/Rx descriptor chain structure
|
|
* Send the set-up frame
|
|
* Enable Tx/Rx machine
|
|
*/
|
|
|
|
static void dmfe_init_dm910x(struct DEVICE *dev)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
unsigned long ioaddr = db->ioaddr;
|
|
|
|
DMFE_DBUG(0, "dmfe_init_dm910x()", 0);
|
|
|
|
/* Reset DM910x MAC controller */
|
|
outl(DM910X_RESET, ioaddr + DCR0); /* RESET MAC */
|
|
udelay(100);
|
|
outl(db->cr0_data, ioaddr + DCR0);
|
|
udelay(5);
|
|
|
|
/* Phy addr : DM910(A)2/DM9132/9801, phy address = 1 */
|
|
db->phy_addr = 1;
|
|
|
|
/* Parser SROM and media mode */
|
|
dmfe_parse_srom(db);
|
|
db->media_mode = dmfe_media_mode;
|
|
|
|
/* RESET Phyxcer Chip by GPR port bit 7 */
|
|
outl(0x180, ioaddr + DCR12); /* Let bit 7 output port */
|
|
if (db->chip_id == PCI_DM9009_ID) {
|
|
outl(0x80, ioaddr + DCR12); /* Issue RESET signal */
|
|
mdelay(300); /* Delay 300 ms */
|
|
}
|
|
outl(0x0, ioaddr + DCR12); /* Clear RESET signal */
|
|
|
|
/* Process Phyxcer Media Mode */
|
|
if ( !(db->media_mode & 0x10) ) /* Force 1M mode */
|
|
dmfe_set_phyxcer(db);
|
|
|
|
/* Media Mode Process */
|
|
if ( !(db->media_mode & DMFE_AUTO) )
|
|
db->op_mode = db->media_mode; /* Force Mode */
|
|
|
|
/* Initialize Transmit/Receive decriptor and CR3/4 */
|
|
dmfe_descriptor_init(db, ioaddr);
|
|
|
|
/* Init CR6 to program DM910x operation */
|
|
update_cr6(db->cr6_data, ioaddr);
|
|
|
|
/* Send setup frame */
|
|
if (db->chip_id == PCI_DM9132_ID)
|
|
dm9132_id_table(dev); /* DM9132 */
|
|
else
|
|
send_filter_frame(dev); /* DM9102/DM9102A */
|
|
|
|
/* Init CR7, interrupt active bit */
|
|
db->cr7_data = CR7_DEFAULT;
|
|
outl(db->cr7_data, ioaddr + DCR7);
|
|
|
|
/* Init CR15, Tx jabber and Rx watchdog timer */
|
|
outl(db->cr15_data, ioaddr + DCR15);
|
|
|
|
/* Enable DM910X Tx/Rx function */
|
|
db->cr6_data |= CR6_RXSC | CR6_TXSC | 0x40000;
|
|
update_cr6(db->cr6_data, ioaddr);
|
|
}
|
|
|
|
|
|
/*
|
|
* Hardware start transmission.
|
|
* Send a packet to media from the upper layer.
|
|
*/
|
|
|
|
static netdev_tx_t dmfe_start_xmit(struct sk_buff *skb,
|
|
struct DEVICE *dev)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
struct tx_desc *txptr;
|
|
unsigned long flags;
|
|
|
|
DMFE_DBUG(0, "dmfe_start_xmit", 0);
|
|
|
|
/* Too large packet check */
|
|
if (skb->len > MAX_PACKET_SIZE) {
|
|
pr_err("big packet = %d\n", (u16)skb->len);
|
|
dev_kfree_skb(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
/* Resource flag check */
|
|
netif_stop_queue(dev);
|
|
|
|
spin_lock_irqsave(&db->lock, flags);
|
|
|
|
/* No Tx resource check, it never happen nromally */
|
|
if (db->tx_queue_cnt >= TX_FREE_DESC_CNT) {
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
pr_err("No Tx resource %ld\n", db->tx_queue_cnt);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
|
|
/* Disable NIC interrupt */
|
|
outl(0, dev->base_addr + DCR7);
|
|
|
|
/* transmit this packet */
|
|
txptr = db->tx_insert_ptr;
|
|
skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, skb->len);
|
|
txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
|
|
|
|
/* Point to next transmit free descriptor */
|
|
db->tx_insert_ptr = txptr->next_tx_desc;
|
|
|
|
/* Transmit Packet Process */
|
|
if ( (!db->tx_queue_cnt) && (db->tx_packet_cnt < TX_MAX_SEND_CNT) ) {
|
|
txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
|
|
db->tx_packet_cnt++; /* Ready to send */
|
|
outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
|
|
dev->trans_start = jiffies; /* saved time stamp */
|
|
} else {
|
|
db->tx_queue_cnt++; /* queue TX packet */
|
|
outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
|
|
}
|
|
|
|
/* Tx resource check */
|
|
if ( db->tx_queue_cnt < TX_FREE_DESC_CNT )
|
|
netif_wake_queue(dev);
|
|
|
|
/* Restore CR7 to enable interrupt */
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
outl(db->cr7_data, dev->base_addr + DCR7);
|
|
|
|
/* free this SKB */
|
|
dev_kfree_skb(skb);
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* Stop the interface.
|
|
* The interface is stopped when it is brought.
|
|
*/
|
|
|
|
static int dmfe_stop(struct DEVICE *dev)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
unsigned long ioaddr = dev->base_addr;
|
|
|
|
DMFE_DBUG(0, "dmfe_stop", 0);
|
|
|
|
/* disable system */
|
|
netif_stop_queue(dev);
|
|
|
|
/* deleted timer */
|
|
del_timer_sync(&db->timer);
|
|
|
|
/* Reset & stop DM910X board */
|
|
outl(DM910X_RESET, ioaddr + DCR0);
|
|
udelay(5);
|
|
phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id);
|
|
|
|
/* free interrupt */
|
|
free_irq(dev->irq, dev);
|
|
|
|
/* free allocated rx buffer */
|
|
dmfe_free_rxbuffer(db);
|
|
|
|
#if 0
|
|
/* show statistic counter */
|
|
printk("FU:%lx EC:%lx LC:%lx NC:%lx LOC:%lx TXJT:%lx RESET:%lx RCR8:%lx FAL:%lx TT:%lx\n",
|
|
db->tx_fifo_underrun, db->tx_excessive_collision,
|
|
db->tx_late_collision, db->tx_no_carrier, db->tx_loss_carrier,
|
|
db->tx_jabber_timeout, db->reset_count, db->reset_cr8,
|
|
db->reset_fatal, db->reset_TXtimeout);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* DM9102 insterrupt handler
|
|
* receive the packet to upper layer, free the transmitted packet
|
|
*/
|
|
|
|
static irqreturn_t dmfe_interrupt(int irq, void *dev_id)
|
|
{
|
|
struct DEVICE *dev = dev_id;
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
unsigned long ioaddr = dev->base_addr;
|
|
unsigned long flags;
|
|
|
|
DMFE_DBUG(0, "dmfe_interrupt()", 0);
|
|
|
|
spin_lock_irqsave(&db->lock, flags);
|
|
|
|
/* Got DM910X status */
|
|
db->cr5_data = inl(ioaddr + DCR5);
|
|
outl(db->cr5_data, ioaddr + DCR5);
|
|
if ( !(db->cr5_data & 0xc1) ) {
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* Disable all interrupt in CR7 to solve the interrupt edge problem */
|
|
outl(0, ioaddr + DCR7);
|
|
|
|
/* Check system status */
|
|
if (db->cr5_data & 0x2000) {
|
|
/* system bus error happen */
|
|
DMFE_DBUG(1, "System bus error happen. CR5=", db->cr5_data);
|
|
db->reset_fatal++;
|
|
db->wait_reset = 1; /* Need to RESET */
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* Received the coming packet */
|
|
if ( (db->cr5_data & 0x40) && db->rx_avail_cnt )
|
|
dmfe_rx_packet(dev, db);
|
|
|
|
/* reallocate rx descriptor buffer */
|
|
if (db->rx_avail_cnt<RX_DESC_CNT)
|
|
allocate_rx_buffer(db);
|
|
|
|
/* Free the transmitted descriptor */
|
|
if ( db->cr5_data & 0x01)
|
|
dmfe_free_tx_pkt(dev, db);
|
|
|
|
/* Mode Check */
|
|
if (db->dm910x_chk_mode & 0x2) {
|
|
db->dm910x_chk_mode = 0x4;
|
|
db->cr6_data |= 0x100;
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
}
|
|
|
|
/* Restore CR7 to enable interrupt mask */
|
|
outl(db->cr7_data, ioaddr + DCR7);
|
|
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
/*
|
|
* Polling 'interrupt' - used by things like netconsole to send skbs
|
|
* without having to re-enable interrupts. It's not called while
|
|
* the interrupt routine is executing.
|
|
*/
|
|
|
|
static void poll_dmfe (struct net_device *dev)
|
|
{
|
|
/* disable_irq here is not very nice, but with the lockless
|
|
interrupt handler we have no other choice. */
|
|
disable_irq(dev->irq);
|
|
dmfe_interrupt (dev->irq, dev);
|
|
enable_irq(dev->irq);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Free TX resource after TX complete
|
|
*/
|
|
|
|
static void dmfe_free_tx_pkt(struct DEVICE *dev, struct dmfe_board_info * db)
|
|
{
|
|
struct tx_desc *txptr;
|
|
unsigned long ioaddr = dev->base_addr;
|
|
u32 tdes0;
|
|
|
|
txptr = db->tx_remove_ptr;
|
|
while(db->tx_packet_cnt) {
|
|
tdes0 = le32_to_cpu(txptr->tdes0);
|
|
pr_debug("tdes0=%x\n", tdes0);
|
|
if (tdes0 & 0x80000000)
|
|
break;
|
|
|
|
/* A packet sent completed */
|
|
db->tx_packet_cnt--;
|
|
dev->stats.tx_packets++;
|
|
|
|
/* Transmit statistic counter */
|
|
if ( tdes0 != 0x7fffffff ) {
|
|
pr_debug("tdes0=%x\n", tdes0);
|
|
dev->stats.collisions += (tdes0 >> 3) & 0xf;
|
|
dev->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff;
|
|
if (tdes0 & TDES0_ERR_MASK) {
|
|
dev->stats.tx_errors++;
|
|
|
|
if (tdes0 & 0x0002) { /* UnderRun */
|
|
db->tx_fifo_underrun++;
|
|
if ( !(db->cr6_data & CR6_SFT) ) {
|
|
db->cr6_data = db->cr6_data | CR6_SFT;
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
}
|
|
}
|
|
if (tdes0 & 0x0100)
|
|
db->tx_excessive_collision++;
|
|
if (tdes0 & 0x0200)
|
|
db->tx_late_collision++;
|
|
if (tdes0 & 0x0400)
|
|
db->tx_no_carrier++;
|
|
if (tdes0 & 0x0800)
|
|
db->tx_loss_carrier++;
|
|
if (tdes0 & 0x4000)
|
|
db->tx_jabber_timeout++;
|
|
}
|
|
}
|
|
|
|
txptr = txptr->next_tx_desc;
|
|
}/* End of while */
|
|
|
|
/* Update TX remove pointer to next */
|
|
db->tx_remove_ptr = txptr;
|
|
|
|
/* Send the Tx packet in queue */
|
|
if ( (db->tx_packet_cnt < TX_MAX_SEND_CNT) && db->tx_queue_cnt ) {
|
|
txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
|
|
db->tx_packet_cnt++; /* Ready to send */
|
|
db->tx_queue_cnt--;
|
|
outl(0x1, ioaddr + DCR1); /* Issue Tx polling */
|
|
dev->trans_start = jiffies; /* saved time stamp */
|
|
}
|
|
|
|
/* Resource available check */
|
|
if ( db->tx_queue_cnt < TX_WAKE_DESC_CNT )
|
|
netif_wake_queue(dev); /* Active upper layer, send again */
|
|
}
|
|
|
|
|
|
/*
|
|
* Calculate the CRC valude of the Rx packet
|
|
* flag = 1 : return the reverse CRC (for the received packet CRC)
|
|
* 0 : return the normal CRC (for Hash Table index)
|
|
*/
|
|
|
|
static inline u32 cal_CRC(unsigned char * Data, unsigned int Len, u8 flag)
|
|
{
|
|
u32 crc = crc32(~0, Data, Len);
|
|
if (flag) crc = ~crc;
|
|
return crc;
|
|
}
|
|
|
|
|
|
/*
|
|
* Receive the come packet and pass to upper layer
|
|
*/
|
|
|
|
static void dmfe_rx_packet(struct DEVICE *dev, struct dmfe_board_info * db)
|
|
{
|
|
struct rx_desc *rxptr;
|
|
struct sk_buff *skb, *newskb;
|
|
int rxlen;
|
|
u32 rdes0;
|
|
|
|
rxptr = db->rx_ready_ptr;
|
|
|
|
while(db->rx_avail_cnt) {
|
|
rdes0 = le32_to_cpu(rxptr->rdes0);
|
|
if (rdes0 & 0x80000000) /* packet owner check */
|
|
break;
|
|
|
|
db->rx_avail_cnt--;
|
|
db->interval_rx_cnt++;
|
|
|
|
pci_unmap_single(db->pdev, le32_to_cpu(rxptr->rdes2),
|
|
RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
|
|
|
|
if ( (rdes0 & 0x300) != 0x300) {
|
|
/* A packet without First/Last flag */
|
|
/* reuse this SKB */
|
|
DMFE_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
|
|
dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
|
|
} else {
|
|
/* A packet with First/Last flag */
|
|
rxlen = ( (rdes0 >> 16) & 0x3fff) - 4;
|
|
|
|
/* error summary bit check */
|
|
if (rdes0 & 0x8000) {
|
|
/* This is a error packet */
|
|
pr_debug("rdes0: %x\n", rdes0);
|
|
dev->stats.rx_errors++;
|
|
if (rdes0 & 1)
|
|
dev->stats.rx_fifo_errors++;
|
|
if (rdes0 & 2)
|
|
dev->stats.rx_crc_errors++;
|
|
if (rdes0 & 0x80)
|
|
dev->stats.rx_length_errors++;
|
|
}
|
|
|
|
if ( !(rdes0 & 0x8000) ||
|
|
((db->cr6_data & CR6_PM) && (rxlen>6)) ) {
|
|
skb = rxptr->rx_skb_ptr;
|
|
|
|
/* Received Packet CRC check need or not */
|
|
if ( (db->dm910x_chk_mode & 1) &&
|
|
(cal_CRC(skb->data, rxlen, 1) !=
|
|
(*(u32 *) (skb->data+rxlen) ))) { /* FIXME (?) */
|
|
/* Found a error received packet */
|
|
dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
|
|
db->dm910x_chk_mode = 3;
|
|
} else {
|
|
/* Good packet, send to upper layer */
|
|
/* Shorst packet used new SKB */
|
|
if ((rxlen < RX_COPY_SIZE) &&
|
|
((newskb = dev_alloc_skb(rxlen + 2))
|
|
!= NULL)) {
|
|
|
|
skb = newskb;
|
|
/* size less than COPY_SIZE, allocate a rxlen SKB */
|
|
skb_reserve(skb, 2); /* 16byte align */
|
|
skb_copy_from_linear_data(rxptr->rx_skb_ptr,
|
|
skb_put(skb, rxlen),
|
|
rxlen);
|
|
dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
|
|
} else
|
|
skb_put(skb, rxlen);
|
|
|
|
skb->protocol = eth_type_trans(skb, dev);
|
|
netif_rx(skb);
|
|
dev->stats.rx_packets++;
|
|
dev->stats.rx_bytes += rxlen;
|
|
}
|
|
} else {
|
|
/* Reuse SKB buffer when the packet is error */
|
|
DMFE_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
|
|
dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
|
|
}
|
|
}
|
|
|
|
rxptr = rxptr->next_rx_desc;
|
|
}
|
|
|
|
db->rx_ready_ptr = rxptr;
|
|
}
|
|
|
|
/*
|
|
* Set DM910X multicast address
|
|
*/
|
|
|
|
static void dmfe_set_filter_mode(struct DEVICE * dev)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
unsigned long flags;
|
|
int mc_count = netdev_mc_count(dev);
|
|
|
|
DMFE_DBUG(0, "dmfe_set_filter_mode()", 0);
|
|
spin_lock_irqsave(&db->lock, flags);
|
|
|
|
if (dev->flags & IFF_PROMISC) {
|
|
DMFE_DBUG(0, "Enable PROM Mode", 0);
|
|
db->cr6_data |= CR6_PM | CR6_PBF;
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return;
|
|
}
|
|
|
|
if (dev->flags & IFF_ALLMULTI || mc_count > DMFE_MAX_MULTICAST) {
|
|
DMFE_DBUG(0, "Pass all multicast address", mc_count);
|
|
db->cr6_data &= ~(CR6_PM | CR6_PBF);
|
|
db->cr6_data |= CR6_PAM;
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return;
|
|
}
|
|
|
|
DMFE_DBUG(0, "Set multicast address", mc_count);
|
|
if (db->chip_id == PCI_DM9132_ID)
|
|
dm9132_id_table(dev); /* DM9132 */
|
|
else
|
|
send_filter_frame(dev); /* DM9102/DM9102A */
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
}
|
|
|
|
/*
|
|
* Ethtool interace
|
|
*/
|
|
|
|
static void dmfe_ethtool_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct dmfe_board_info *np = netdev_priv(dev);
|
|
|
|
strcpy(info->driver, DRV_NAME);
|
|
strcpy(info->version, DRV_VERSION);
|
|
if (np->pdev)
|
|
strcpy(info->bus_info, pci_name(np->pdev));
|
|
else
|
|
sprintf(info->bus_info, "EISA 0x%lx %d",
|
|
dev->base_addr, dev->irq);
|
|
}
|
|
|
|
static int dmfe_ethtool_set_wol(struct net_device *dev,
|
|
struct ethtool_wolinfo *wolinfo)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
|
|
if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
|
|
WAKE_ARP | WAKE_MAGICSECURE))
|
|
return -EOPNOTSUPP;
|
|
|
|
db->wol_mode = wolinfo->wolopts;
|
|
return 0;
|
|
}
|
|
|
|
static void dmfe_ethtool_get_wol(struct net_device *dev,
|
|
struct ethtool_wolinfo *wolinfo)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
|
|
wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
|
|
wolinfo->wolopts = db->wol_mode;
|
|
}
|
|
|
|
|
|
static const struct ethtool_ops netdev_ethtool_ops = {
|
|
.get_drvinfo = dmfe_ethtool_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
.set_wol = dmfe_ethtool_set_wol,
|
|
.get_wol = dmfe_ethtool_get_wol,
|
|
};
|
|
|
|
/*
|
|
* A periodic timer routine
|
|
* Dynamic media sense, allocate Rx buffer...
|
|
*/
|
|
|
|
static void dmfe_timer(unsigned long data)
|
|
{
|
|
u32 tmp_cr8;
|
|
unsigned char tmp_cr12;
|
|
struct DEVICE *dev = (struct DEVICE *) data;
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
unsigned long flags;
|
|
|
|
int link_ok, link_ok_phy;
|
|
|
|
DMFE_DBUG(0, "dmfe_timer()", 0);
|
|
spin_lock_irqsave(&db->lock, flags);
|
|
|
|
/* Media mode process when Link OK before enter this route */
|
|
if (db->first_in_callback == 0) {
|
|
db->first_in_callback = 1;
|
|
if (db->chip_type && (db->chip_id==PCI_DM9102_ID)) {
|
|
db->cr6_data &= ~0x40000;
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
phy_write(db->ioaddr,
|
|
db->phy_addr, 0, 0x1000, db->chip_id);
|
|
db->cr6_data |= 0x40000;
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
|
|
add_timer(&db->timer);
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
/* Operating Mode Check */
|
|
if ( (db->dm910x_chk_mode & 0x1) &&
|
|
(dev->stats.rx_packets > MAX_CHECK_PACKET) )
|
|
db->dm910x_chk_mode = 0x4;
|
|
|
|
/* Dynamic reset DM910X : system error or transmit time-out */
|
|
tmp_cr8 = inl(db->ioaddr + DCR8);
|
|
if ( (db->interval_rx_cnt==0) && (tmp_cr8) ) {
|
|
db->reset_cr8++;
|
|
db->wait_reset = 1;
|
|
}
|
|
db->interval_rx_cnt = 0;
|
|
|
|
/* TX polling kick monitor */
|
|
if ( db->tx_packet_cnt &&
|
|
time_after(jiffies, dev_trans_start(dev) + DMFE_TX_KICK) ) {
|
|
outl(0x1, dev->base_addr + DCR1); /* Tx polling again */
|
|
|
|
/* TX Timeout */
|
|
if (time_after(jiffies, dev_trans_start(dev) + DMFE_TX_TIMEOUT) ) {
|
|
db->reset_TXtimeout++;
|
|
db->wait_reset = 1;
|
|
dev_warn(&dev->dev, "Tx timeout - resetting\n");
|
|
}
|
|
}
|
|
|
|
if (db->wait_reset) {
|
|
DMFE_DBUG(0, "Dynamic Reset device", db->tx_packet_cnt);
|
|
db->reset_count++;
|
|
dmfe_dynamic_reset(dev);
|
|
db->first_in_callback = 0;
|
|
db->timer.expires = DMFE_TIMER_WUT;
|
|
add_timer(&db->timer);
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
return;
|
|
}
|
|
|
|
/* Link status check, Dynamic media type change */
|
|
if (db->chip_id == PCI_DM9132_ID)
|
|
tmp_cr12 = inb(db->ioaddr + DCR9 + 3); /* DM9132 */
|
|
else
|
|
tmp_cr12 = inb(db->ioaddr + DCR12); /* DM9102/DM9102A */
|
|
|
|
if ( ((db->chip_id == PCI_DM9102_ID) &&
|
|
(db->chip_revision == 0x30)) ||
|
|
((db->chip_id == PCI_DM9132_ID) &&
|
|
(db->chip_revision == 0x10)) ) {
|
|
/* DM9102A Chip */
|
|
if (tmp_cr12 & 2)
|
|
link_ok = 0;
|
|
else
|
|
link_ok = 1;
|
|
}
|
|
else
|
|
/*0x43 is used instead of 0x3 because bit 6 should represent
|
|
link status of external PHY */
|
|
link_ok = (tmp_cr12 & 0x43) ? 1 : 0;
|
|
|
|
|
|
/* If chip reports that link is failed it could be because external
|
|
PHY link status pin is not conected correctly to chip
|
|
To be sure ask PHY too.
|
|
*/
|
|
|
|
/* need a dummy read because of PHY's register latch*/
|
|
phy_read (db->ioaddr, db->phy_addr, 1, db->chip_id);
|
|
link_ok_phy = (phy_read (db->ioaddr,
|
|
db->phy_addr, 1, db->chip_id) & 0x4) ? 1 : 0;
|
|
|
|
if (link_ok_phy != link_ok) {
|
|
DMFE_DBUG (0, "PHY and chip report different link status", 0);
|
|
link_ok = link_ok | link_ok_phy;
|
|
}
|
|
|
|
if ( !link_ok && netif_carrier_ok(dev)) {
|
|
/* Link Failed */
|
|
DMFE_DBUG(0, "Link Failed", tmp_cr12);
|
|
netif_carrier_off(dev);
|
|
|
|
/* For Force 10/100M Half/Full mode: Enable Auto-Nego mode */
|
|
/* AUTO or force 1M Homerun/Longrun don't need */
|
|
if ( !(db->media_mode & 0x38) )
|
|
phy_write(db->ioaddr, db->phy_addr,
|
|
0, 0x1000, db->chip_id);
|
|
|
|
/* AUTO mode, if INT phyxcer link failed, select EXT device */
|
|
if (db->media_mode & DMFE_AUTO) {
|
|
/* 10/100M link failed, used 1M Home-Net */
|
|
db->cr6_data|=0x00040000; /* bit18=1, MII */
|
|
db->cr6_data&=~0x00000200; /* bit9=0, HD mode */
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
}
|
|
} else if (!netif_carrier_ok(dev)) {
|
|
|
|
DMFE_DBUG(0, "Link link OK", tmp_cr12);
|
|
|
|
/* Auto Sense Speed */
|
|
if ( !(db->media_mode & DMFE_AUTO) || !dmfe_sense_speed(db)) {
|
|
netif_carrier_on(dev);
|
|
SHOW_MEDIA_TYPE(db->op_mode);
|
|
}
|
|
|
|
dmfe_process_mode(db);
|
|
}
|
|
|
|
/* HPNA remote command check */
|
|
if (db->HPNA_command & 0xf00) {
|
|
db->HPNA_timer--;
|
|
if (!db->HPNA_timer)
|
|
dmfe_HPNA_remote_cmd_chk(db);
|
|
}
|
|
|
|
/* Timer active again */
|
|
db->timer.expires = DMFE_TIMER_WUT;
|
|
add_timer(&db->timer);
|
|
spin_unlock_irqrestore(&db->lock, flags);
|
|
}
|
|
|
|
|
|
/*
|
|
* Dynamic reset the DM910X board
|
|
* Stop DM910X board
|
|
* Free Tx/Rx allocated memory
|
|
* Reset DM910X board
|
|
* Re-initialize DM910X board
|
|
*/
|
|
|
|
static void dmfe_dynamic_reset(struct DEVICE *dev)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
|
|
DMFE_DBUG(0, "dmfe_dynamic_reset()", 0);
|
|
|
|
/* Sopt MAC controller */
|
|
db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */
|
|
update_cr6(db->cr6_data, dev->base_addr);
|
|
outl(0, dev->base_addr + DCR7); /* Disable Interrupt */
|
|
outl(inl(dev->base_addr + DCR5), dev->base_addr + DCR5);
|
|
|
|
/* Disable upper layer interface */
|
|
netif_stop_queue(dev);
|
|
|
|
/* Free Rx Allocate buffer */
|
|
dmfe_free_rxbuffer(db);
|
|
|
|
/* system variable init */
|
|
db->tx_packet_cnt = 0;
|
|
db->tx_queue_cnt = 0;
|
|
db->rx_avail_cnt = 0;
|
|
netif_carrier_off(dev);
|
|
db->wait_reset = 0;
|
|
|
|
/* Re-initialize DM910X board */
|
|
dmfe_init_dm910x(dev);
|
|
|
|
/* Restart upper layer interface */
|
|
netif_wake_queue(dev);
|
|
}
|
|
|
|
|
|
/*
|
|
* free all allocated rx buffer
|
|
*/
|
|
|
|
static void dmfe_free_rxbuffer(struct dmfe_board_info * db)
|
|
{
|
|
DMFE_DBUG(0, "dmfe_free_rxbuffer()", 0);
|
|
|
|
/* free allocated rx buffer */
|
|
while (db->rx_avail_cnt) {
|
|
dev_kfree_skb(db->rx_ready_ptr->rx_skb_ptr);
|
|
db->rx_ready_ptr = db->rx_ready_ptr->next_rx_desc;
|
|
db->rx_avail_cnt--;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Reuse the SK buffer
|
|
*/
|
|
|
|
static void dmfe_reuse_skb(struct dmfe_board_info *db, struct sk_buff * skb)
|
|
{
|
|
struct rx_desc *rxptr = db->rx_insert_ptr;
|
|
|
|
if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) {
|
|
rxptr->rx_skb_ptr = skb;
|
|
rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev,
|
|
skb->data, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
|
|
wmb();
|
|
rxptr->rdes0 = cpu_to_le32(0x80000000);
|
|
db->rx_avail_cnt++;
|
|
db->rx_insert_ptr = rxptr->next_rx_desc;
|
|
} else
|
|
DMFE_DBUG(0, "SK Buffer reuse method error", db->rx_avail_cnt);
|
|
}
|
|
|
|
|
|
/*
|
|
* Initialize transmit/Receive descriptor
|
|
* Using Chain structure, and allocate Tx/Rx buffer
|
|
*/
|
|
|
|
static void dmfe_descriptor_init(struct dmfe_board_info *db, unsigned long ioaddr)
|
|
{
|
|
struct tx_desc *tmp_tx;
|
|
struct rx_desc *tmp_rx;
|
|
unsigned char *tmp_buf;
|
|
dma_addr_t tmp_tx_dma, tmp_rx_dma;
|
|
dma_addr_t tmp_buf_dma;
|
|
int i;
|
|
|
|
DMFE_DBUG(0, "dmfe_descriptor_init()", 0);
|
|
|
|
/* tx descriptor start pointer */
|
|
db->tx_insert_ptr = db->first_tx_desc;
|
|
db->tx_remove_ptr = db->first_tx_desc;
|
|
outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */
|
|
|
|
/* rx descriptor start pointer */
|
|
db->first_rx_desc = (void *)db->first_tx_desc +
|
|
sizeof(struct tx_desc) * TX_DESC_CNT;
|
|
|
|
db->first_rx_desc_dma = db->first_tx_desc_dma +
|
|
sizeof(struct tx_desc) * TX_DESC_CNT;
|
|
db->rx_insert_ptr = db->first_rx_desc;
|
|
db->rx_ready_ptr = db->first_rx_desc;
|
|
outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */
|
|
|
|
/* Init Transmit chain */
|
|
tmp_buf = db->buf_pool_start;
|
|
tmp_buf_dma = db->buf_pool_dma_start;
|
|
tmp_tx_dma = db->first_tx_desc_dma;
|
|
for (tmp_tx = db->first_tx_desc, i = 0; i < TX_DESC_CNT; i++, tmp_tx++) {
|
|
tmp_tx->tx_buf_ptr = tmp_buf;
|
|
tmp_tx->tdes0 = cpu_to_le32(0);
|
|
tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */
|
|
tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma);
|
|
tmp_tx_dma += sizeof(struct tx_desc);
|
|
tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma);
|
|
tmp_tx->next_tx_desc = tmp_tx + 1;
|
|
tmp_buf = tmp_buf + TX_BUF_ALLOC;
|
|
tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC;
|
|
}
|
|
(--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma);
|
|
tmp_tx->next_tx_desc = db->first_tx_desc;
|
|
|
|
/* Init Receive descriptor chain */
|
|
tmp_rx_dma=db->first_rx_desc_dma;
|
|
for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; i++, tmp_rx++) {
|
|
tmp_rx->rdes0 = cpu_to_le32(0);
|
|
tmp_rx->rdes1 = cpu_to_le32(0x01000600);
|
|
tmp_rx_dma += sizeof(struct rx_desc);
|
|
tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma);
|
|
tmp_rx->next_rx_desc = tmp_rx + 1;
|
|
}
|
|
(--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma);
|
|
tmp_rx->next_rx_desc = db->first_rx_desc;
|
|
|
|
/* pre-allocate Rx buffer */
|
|
allocate_rx_buffer(db);
|
|
}
|
|
|
|
|
|
/*
|
|
* Update CR6 value
|
|
* Firstly stop DM910X , then written value and start
|
|
*/
|
|
|
|
static void update_cr6(u32 cr6_data, unsigned long ioaddr)
|
|
{
|
|
u32 cr6_tmp;
|
|
|
|
cr6_tmp = cr6_data & ~0x2002; /* stop Tx/Rx */
|
|
outl(cr6_tmp, ioaddr + DCR6);
|
|
udelay(5);
|
|
outl(cr6_data, ioaddr + DCR6);
|
|
udelay(5);
|
|
}
|
|
|
|
|
|
/*
|
|
* Send a setup frame for DM9132
|
|
* This setup frame initialize DM910X address filter mode
|
|
*/
|
|
|
|
static void dm9132_id_table(struct DEVICE *dev)
|
|
{
|
|
struct netdev_hw_addr *ha;
|
|
u16 * addrptr;
|
|
unsigned long ioaddr = dev->base_addr+0xc0; /* ID Table */
|
|
u32 hash_val;
|
|
u16 i, hash_table[4];
|
|
|
|
DMFE_DBUG(0, "dm9132_id_table()", 0);
|
|
|
|
/* Node address */
|
|
addrptr = (u16 *) dev->dev_addr;
|
|
outw(addrptr[0], ioaddr);
|
|
ioaddr += 4;
|
|
outw(addrptr[1], ioaddr);
|
|
ioaddr += 4;
|
|
outw(addrptr[2], ioaddr);
|
|
ioaddr += 4;
|
|
|
|
/* Clear Hash Table */
|
|
memset(hash_table, 0, sizeof(hash_table));
|
|
|
|
/* broadcast address */
|
|
hash_table[3] = 0x8000;
|
|
|
|
/* the multicast address in Hash Table : 64 bits */
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
hash_val = cal_CRC((char *) ha->addr, 6, 0) & 0x3f;
|
|
hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16);
|
|
}
|
|
|
|
/* Write the hash table to MAC MD table */
|
|
for (i = 0; i < 4; i++, ioaddr += 4)
|
|
outw(hash_table[i], ioaddr);
|
|
}
|
|
|
|
|
|
/*
|
|
* Send a setup frame for DM9102/DM9102A
|
|
* This setup frame initialize DM910X address filter mode
|
|
*/
|
|
|
|
static void send_filter_frame(struct DEVICE *dev)
|
|
{
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
struct netdev_hw_addr *ha;
|
|
struct tx_desc *txptr;
|
|
u16 * addrptr;
|
|
u32 * suptr;
|
|
int i;
|
|
|
|
DMFE_DBUG(0, "send_filter_frame()", 0);
|
|
|
|
txptr = db->tx_insert_ptr;
|
|
suptr = (u32 *) txptr->tx_buf_ptr;
|
|
|
|
/* Node address */
|
|
addrptr = (u16 *) dev->dev_addr;
|
|
*suptr++ = addrptr[0];
|
|
*suptr++ = addrptr[1];
|
|
*suptr++ = addrptr[2];
|
|
|
|
/* broadcast address */
|
|
*suptr++ = 0xffff;
|
|
*suptr++ = 0xffff;
|
|
*suptr++ = 0xffff;
|
|
|
|
/* fit the multicast address */
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
addrptr = (u16 *) ha->addr;
|
|
*suptr++ = addrptr[0];
|
|
*suptr++ = addrptr[1];
|
|
*suptr++ = addrptr[2];
|
|
}
|
|
|
|
for (i = netdev_mc_count(dev); i < 14; i++) {
|
|
*suptr++ = 0xffff;
|
|
*suptr++ = 0xffff;
|
|
*suptr++ = 0xffff;
|
|
}
|
|
|
|
/* prepare the setup frame */
|
|
db->tx_insert_ptr = txptr->next_tx_desc;
|
|
txptr->tdes1 = cpu_to_le32(0x890000c0);
|
|
|
|
/* Resource Check and Send the setup packet */
|
|
if (!db->tx_packet_cnt) {
|
|
/* Resource Empty */
|
|
db->tx_packet_cnt++;
|
|
txptr->tdes0 = cpu_to_le32(0x80000000);
|
|
update_cr6(db->cr6_data | 0x2000, dev->base_addr);
|
|
outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
|
|
update_cr6(db->cr6_data, dev->base_addr);
|
|
dev->trans_start = jiffies;
|
|
} else
|
|
db->tx_queue_cnt++; /* Put in TX queue */
|
|
}
|
|
|
|
|
|
/*
|
|
* Allocate rx buffer,
|
|
* As possible as allocate maxiumn Rx buffer
|
|
*/
|
|
|
|
static void allocate_rx_buffer(struct dmfe_board_info *db)
|
|
{
|
|
struct rx_desc *rxptr;
|
|
struct sk_buff *skb;
|
|
|
|
rxptr = db->rx_insert_ptr;
|
|
|
|
while(db->rx_avail_cnt < RX_DESC_CNT) {
|
|
if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL )
|
|
break;
|
|
rxptr->rx_skb_ptr = skb; /* FIXME (?) */
|
|
rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->data,
|
|
RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
|
|
wmb();
|
|
rxptr->rdes0 = cpu_to_le32(0x80000000);
|
|
rxptr = rxptr->next_rx_desc;
|
|
db->rx_avail_cnt++;
|
|
}
|
|
|
|
db->rx_insert_ptr = rxptr;
|
|
}
|
|
|
|
|
|
/*
|
|
* Read one word data from the serial ROM
|
|
*/
|
|
|
|
static u16 read_srom_word(long ioaddr, int offset)
|
|
{
|
|
int i;
|
|
u16 srom_data = 0;
|
|
long cr9_ioaddr = ioaddr + DCR9;
|
|
|
|
outl(CR9_SROM_READ, cr9_ioaddr);
|
|
outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
|
|
|
|
/* Send the Read Command 110b */
|
|
SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
|
|
SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
|
|
SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr);
|
|
|
|
/* Send the offset */
|
|
for (i = 5; i >= 0; i--) {
|
|
srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0;
|
|
SROM_CLK_WRITE(srom_data, cr9_ioaddr);
|
|
}
|
|
|
|
outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
|
|
|
|
for (i = 16; i > 0; i--) {
|
|
outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr);
|
|
udelay(5);
|
|
srom_data = (srom_data << 1) |
|
|
((inl(cr9_ioaddr) & CR9_CRDOUT) ? 1 : 0);
|
|
outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
|
|
udelay(5);
|
|
}
|
|
|
|
outl(CR9_SROM_READ, cr9_ioaddr);
|
|
return srom_data;
|
|
}
|
|
|
|
|
|
/*
|
|
* Auto sense the media mode
|
|
*/
|
|
|
|
static u8 dmfe_sense_speed(struct dmfe_board_info * db)
|
|
{
|
|
u8 ErrFlag = 0;
|
|
u16 phy_mode;
|
|
|
|
/* CR6 bit18=0, select 10/100M */
|
|
update_cr6( (db->cr6_data & ~0x40000), db->ioaddr);
|
|
|
|
phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
|
|
phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
|
|
|
|
if ( (phy_mode & 0x24) == 0x24 ) {
|
|
if (db->chip_id == PCI_DM9132_ID) /* DM9132 */
|
|
phy_mode = phy_read(db->ioaddr,
|
|
db->phy_addr, 7, db->chip_id) & 0xf000;
|
|
else /* DM9102/DM9102A */
|
|
phy_mode = phy_read(db->ioaddr,
|
|
db->phy_addr, 17, db->chip_id) & 0xf000;
|
|
pr_debug("Phy_mode %x\n", phy_mode);
|
|
switch (phy_mode) {
|
|
case 0x1000: db->op_mode = DMFE_10MHF; break;
|
|
case 0x2000: db->op_mode = DMFE_10MFD; break;
|
|
case 0x4000: db->op_mode = DMFE_100MHF; break;
|
|
case 0x8000: db->op_mode = DMFE_100MFD; break;
|
|
default: db->op_mode = DMFE_10MHF;
|
|
ErrFlag = 1;
|
|
break;
|
|
}
|
|
} else {
|
|
db->op_mode = DMFE_10MHF;
|
|
DMFE_DBUG(0, "Link Failed :", phy_mode);
|
|
ErrFlag = 1;
|
|
}
|
|
|
|
return ErrFlag;
|
|
}
|
|
|
|
|
|
/*
|
|
* Set 10/100 phyxcer capability
|
|
* AUTO mode : phyxcer register4 is NIC capability
|
|
* Force mode: phyxcer register4 is the force media
|
|
*/
|
|
|
|
static void dmfe_set_phyxcer(struct dmfe_board_info *db)
|
|
{
|
|
u16 phy_reg;
|
|
|
|
/* Select 10/100M phyxcer */
|
|
db->cr6_data &= ~0x40000;
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
|
|
/* DM9009 Chip: Phyxcer reg18 bit12=0 */
|
|
if (db->chip_id == PCI_DM9009_ID) {
|
|
phy_reg = phy_read(db->ioaddr,
|
|
db->phy_addr, 18, db->chip_id) & ~0x1000;
|
|
|
|
phy_write(db->ioaddr,
|
|
db->phy_addr, 18, phy_reg, db->chip_id);
|
|
}
|
|
|
|
/* Phyxcer capability setting */
|
|
phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0;
|
|
|
|
if (db->media_mode & DMFE_AUTO) {
|
|
/* AUTO Mode */
|
|
phy_reg |= db->PHY_reg4;
|
|
} else {
|
|
/* Force Mode */
|
|
switch(db->media_mode) {
|
|
case DMFE_10MHF: phy_reg |= 0x20; break;
|
|
case DMFE_10MFD: phy_reg |= 0x40; break;
|
|
case DMFE_100MHF: phy_reg |= 0x80; break;
|
|
case DMFE_100MFD: phy_reg |= 0x100; break;
|
|
}
|
|
if (db->chip_id == PCI_DM9009_ID) phy_reg &= 0x61;
|
|
}
|
|
|
|
/* Write new capability to Phyxcer Reg4 */
|
|
if ( !(phy_reg & 0x01e0)) {
|
|
phy_reg|=db->PHY_reg4;
|
|
db->media_mode|=DMFE_AUTO;
|
|
}
|
|
phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id);
|
|
|
|
/* Restart Auto-Negotiation */
|
|
if ( db->chip_type && (db->chip_id == PCI_DM9102_ID) )
|
|
phy_write(db->ioaddr, db->phy_addr, 0, 0x1800, db->chip_id);
|
|
if ( !db->chip_type )
|
|
phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id);
|
|
}
|
|
|
|
|
|
/*
|
|
* Process op-mode
|
|
* AUTO mode : PHY controller in Auto-negotiation Mode
|
|
* Force mode: PHY controller in force mode with HUB
|
|
* N-way force capability with SWITCH
|
|
*/
|
|
|
|
static void dmfe_process_mode(struct dmfe_board_info *db)
|
|
{
|
|
u16 phy_reg;
|
|
|
|
/* Full Duplex Mode Check */
|
|
if (db->op_mode & 0x4)
|
|
db->cr6_data |= CR6_FDM; /* Set Full Duplex Bit */
|
|
else
|
|
db->cr6_data &= ~CR6_FDM; /* Clear Full Duplex Bit */
|
|
|
|
/* Transciver Selection */
|
|
if (db->op_mode & 0x10) /* 1M HomePNA */
|
|
db->cr6_data |= 0x40000;/* External MII select */
|
|
else
|
|
db->cr6_data &= ~0x40000;/* Internal 10/100 transciver */
|
|
|
|
update_cr6(db->cr6_data, db->ioaddr);
|
|
|
|
/* 10/100M phyxcer force mode need */
|
|
if ( !(db->media_mode & 0x18)) {
|
|
/* Forece Mode */
|
|
phy_reg = phy_read(db->ioaddr, db->phy_addr, 6, db->chip_id);
|
|
if ( !(phy_reg & 0x1) ) {
|
|
/* parter without N-Way capability */
|
|
phy_reg = 0x0;
|
|
switch(db->op_mode) {
|
|
case DMFE_10MHF: phy_reg = 0x0; break;
|
|
case DMFE_10MFD: phy_reg = 0x100; break;
|
|
case DMFE_100MHF: phy_reg = 0x2000; break;
|
|
case DMFE_100MFD: phy_reg = 0x2100; break;
|
|
}
|
|
phy_write(db->ioaddr,
|
|
db->phy_addr, 0, phy_reg, db->chip_id);
|
|
if ( db->chip_type && (db->chip_id == PCI_DM9102_ID) )
|
|
mdelay(20);
|
|
phy_write(db->ioaddr,
|
|
db->phy_addr, 0, phy_reg, db->chip_id);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Write a word to Phy register
|
|
*/
|
|
|
|
static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset,
|
|
u16 phy_data, u32 chip_id)
|
|
{
|
|
u16 i;
|
|
unsigned long ioaddr;
|
|
|
|
if (chip_id == PCI_DM9132_ID) {
|
|
ioaddr = iobase + 0x80 + offset * 4;
|
|
outw(phy_data, ioaddr);
|
|
} else {
|
|
/* DM9102/DM9102A Chip */
|
|
ioaddr = iobase + DCR9;
|
|
|
|
/* Send 33 synchronization clock to Phy controller */
|
|
for (i = 0; i < 35; i++)
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
|
|
/* Send start command(01) to Phy */
|
|
phy_write_1bit(ioaddr, PHY_DATA_0);
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
|
|
/* Send write command(01) to Phy */
|
|
phy_write_1bit(ioaddr, PHY_DATA_0);
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
|
|
/* Send Phy address */
|
|
for (i = 0x10; i > 0; i = i >> 1)
|
|
phy_write_1bit(ioaddr,
|
|
phy_addr & i ? PHY_DATA_1 : PHY_DATA_0);
|
|
|
|
/* Send register address */
|
|
for (i = 0x10; i > 0; i = i >> 1)
|
|
phy_write_1bit(ioaddr,
|
|
offset & i ? PHY_DATA_1 : PHY_DATA_0);
|
|
|
|
/* written trasnition */
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
phy_write_1bit(ioaddr, PHY_DATA_0);
|
|
|
|
/* Write a word data to PHY controller */
|
|
for ( i = 0x8000; i > 0; i >>= 1)
|
|
phy_write_1bit(ioaddr,
|
|
phy_data & i ? PHY_DATA_1 : PHY_DATA_0);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Read a word data from phy register
|
|
*/
|
|
|
|
static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id)
|
|
{
|
|
int i;
|
|
u16 phy_data;
|
|
unsigned long ioaddr;
|
|
|
|
if (chip_id == PCI_DM9132_ID) {
|
|
/* DM9132 Chip */
|
|
ioaddr = iobase + 0x80 + offset * 4;
|
|
phy_data = inw(ioaddr);
|
|
} else {
|
|
/* DM9102/DM9102A Chip */
|
|
ioaddr = iobase + DCR9;
|
|
|
|
/* Send 33 synchronization clock to Phy controller */
|
|
for (i = 0; i < 35; i++)
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
|
|
/* Send start command(01) to Phy */
|
|
phy_write_1bit(ioaddr, PHY_DATA_0);
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
|
|
/* Send read command(10) to Phy */
|
|
phy_write_1bit(ioaddr, PHY_DATA_1);
|
|
phy_write_1bit(ioaddr, PHY_DATA_0);
|
|
|
|
/* Send Phy address */
|
|
for (i = 0x10; i > 0; i = i >> 1)
|
|
phy_write_1bit(ioaddr,
|
|
phy_addr & i ? PHY_DATA_1 : PHY_DATA_0);
|
|
|
|
/* Send register address */
|
|
for (i = 0x10; i > 0; i = i >> 1)
|
|
phy_write_1bit(ioaddr,
|
|
offset & i ? PHY_DATA_1 : PHY_DATA_0);
|
|
|
|
/* Skip transition state */
|
|
phy_read_1bit(ioaddr);
|
|
|
|
/* read 16bit data */
|
|
for (phy_data = 0, i = 0; i < 16; i++) {
|
|
phy_data <<= 1;
|
|
phy_data |= phy_read_1bit(ioaddr);
|
|
}
|
|
}
|
|
|
|
return phy_data;
|
|
}
|
|
|
|
|
|
/*
|
|
* Write one bit data to Phy Controller
|
|
*/
|
|
|
|
static void phy_write_1bit(unsigned long ioaddr, u32 phy_data)
|
|
{
|
|
outl(phy_data, ioaddr); /* MII Clock Low */
|
|
udelay(1);
|
|
outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */
|
|
udelay(1);
|
|
outl(phy_data, ioaddr); /* MII Clock Low */
|
|
udelay(1);
|
|
}
|
|
|
|
|
|
/*
|
|
* Read one bit phy data from PHY controller
|
|
*/
|
|
|
|
static u16 phy_read_1bit(unsigned long ioaddr)
|
|
{
|
|
u16 phy_data;
|
|
|
|
outl(0x50000, ioaddr);
|
|
udelay(1);
|
|
phy_data = ( inl(ioaddr) >> 19 ) & 0x1;
|
|
outl(0x40000, ioaddr);
|
|
udelay(1);
|
|
|
|
return phy_data;
|
|
}
|
|
|
|
|
|
/*
|
|
* Parser SROM and media mode
|
|
*/
|
|
|
|
static void dmfe_parse_srom(struct dmfe_board_info * db)
|
|
{
|
|
char * srom = db->srom;
|
|
int dmfe_mode, tmp_reg;
|
|
|
|
DMFE_DBUG(0, "dmfe_parse_srom() ", 0);
|
|
|
|
/* Init CR15 */
|
|
db->cr15_data = CR15_DEFAULT;
|
|
|
|
/* Check SROM Version */
|
|
if ( ( (int) srom[18] & 0xff) == SROM_V41_CODE) {
|
|
/* SROM V4.01 */
|
|
/* Get NIC support media mode */
|
|
db->NIC_capability = le16_to_cpup((__le16 *) (srom + 34));
|
|
db->PHY_reg4 = 0;
|
|
for (tmp_reg = 1; tmp_reg < 0x10; tmp_reg <<= 1) {
|
|
switch( db->NIC_capability & tmp_reg ) {
|
|
case 0x1: db->PHY_reg4 |= 0x0020; break;
|
|
case 0x2: db->PHY_reg4 |= 0x0040; break;
|
|
case 0x4: db->PHY_reg4 |= 0x0080; break;
|
|
case 0x8: db->PHY_reg4 |= 0x0100; break;
|
|
}
|
|
}
|
|
|
|
/* Media Mode Force or not check */
|
|
dmfe_mode = (le32_to_cpup((__le32 *) (srom + 34)) &
|
|
le32_to_cpup((__le32 *) (srom + 36)));
|
|
switch(dmfe_mode) {
|
|
case 0x4: dmfe_media_mode = DMFE_100MHF; break; /* 100MHF */
|
|
case 0x2: dmfe_media_mode = DMFE_10MFD; break; /* 10MFD */
|
|
case 0x8: dmfe_media_mode = DMFE_100MFD; break; /* 100MFD */
|
|
case 0x100:
|
|
case 0x200: dmfe_media_mode = DMFE_1M_HPNA; break;/* HomePNA */
|
|
}
|
|
|
|
/* Special Function setting */
|
|
/* VLAN function */
|
|
if ( (SF_mode & 0x1) || (srom[43] & 0x80) )
|
|
db->cr15_data |= 0x40;
|
|
|
|
/* Flow Control */
|
|
if ( (SF_mode & 0x2) || (srom[40] & 0x1) )
|
|
db->cr15_data |= 0x400;
|
|
|
|
/* TX pause packet */
|
|
if ( (SF_mode & 0x4) || (srom[40] & 0xe) )
|
|
db->cr15_data |= 0x9800;
|
|
}
|
|
|
|
/* Parse HPNA parameter */
|
|
db->HPNA_command = 1;
|
|
|
|
/* Accept remote command or not */
|
|
if (HPNA_rx_cmd == 0)
|
|
db->HPNA_command |= 0x8000;
|
|
|
|
/* Issue remote command & operation mode */
|
|
if (HPNA_tx_cmd == 1)
|
|
switch(HPNA_mode) { /* Issue Remote Command */
|
|
case 0: db->HPNA_command |= 0x0904; break;
|
|
case 1: db->HPNA_command |= 0x0a00; break;
|
|
case 2: db->HPNA_command |= 0x0506; break;
|
|
case 3: db->HPNA_command |= 0x0602; break;
|
|
}
|
|
else
|
|
switch(HPNA_mode) { /* Don't Issue */
|
|
case 0: db->HPNA_command |= 0x0004; break;
|
|
case 1: db->HPNA_command |= 0x0000; break;
|
|
case 2: db->HPNA_command |= 0x0006; break;
|
|
case 3: db->HPNA_command |= 0x0002; break;
|
|
}
|
|
|
|
/* Check DM9801 or DM9802 present or not */
|
|
db->HPNA_present = 0;
|
|
update_cr6(db->cr6_data|0x40000, db->ioaddr);
|
|
tmp_reg = phy_read(db->ioaddr, db->phy_addr, 3, db->chip_id);
|
|
if ( ( tmp_reg & 0xfff0 ) == 0xb900 ) {
|
|
/* DM9801 or DM9802 present */
|
|
db->HPNA_timer = 8;
|
|
if ( phy_read(db->ioaddr, db->phy_addr, 31, db->chip_id) == 0x4404) {
|
|
/* DM9801 HomeRun */
|
|
db->HPNA_present = 1;
|
|
dmfe_program_DM9801(db, tmp_reg);
|
|
} else {
|
|
/* DM9802 LongRun */
|
|
db->HPNA_present = 2;
|
|
dmfe_program_DM9802(db);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
* Init HomeRun DM9801
|
|
*/
|
|
|
|
static void dmfe_program_DM9801(struct dmfe_board_info * db, int HPNA_rev)
|
|
{
|
|
uint reg17, reg25;
|
|
|
|
if ( !HPNA_NoiseFloor ) HPNA_NoiseFloor = DM9801_NOISE_FLOOR;
|
|
switch(HPNA_rev) {
|
|
case 0xb900: /* DM9801 E3 */
|
|
db->HPNA_command |= 0x1000;
|
|
reg25 = phy_read(db->ioaddr, db->phy_addr, 24, db->chip_id);
|
|
reg25 = ( (reg25 + HPNA_NoiseFloor) & 0xff) | 0xf000;
|
|
reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
|
|
break;
|
|
case 0xb901: /* DM9801 E4 */
|
|
reg25 = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
|
|
reg25 = (reg25 & 0xff00) + HPNA_NoiseFloor;
|
|
reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
|
|
reg17 = (reg17 & 0xfff0) + HPNA_NoiseFloor + 3;
|
|
break;
|
|
case 0xb902: /* DM9801 E5 */
|
|
case 0xb903: /* DM9801 E6 */
|
|
default:
|
|
db->HPNA_command |= 0x1000;
|
|
reg25 = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
|
|
reg25 = (reg25 & 0xff00) + HPNA_NoiseFloor - 5;
|
|
reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
|
|
reg17 = (reg17 & 0xfff0) + HPNA_NoiseFloor;
|
|
break;
|
|
}
|
|
phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
|
|
phy_write(db->ioaddr, db->phy_addr, 17, reg17, db->chip_id);
|
|
phy_write(db->ioaddr, db->phy_addr, 25, reg25, db->chip_id);
|
|
}
|
|
|
|
|
|
/*
|
|
* Init HomeRun DM9802
|
|
*/
|
|
|
|
static void dmfe_program_DM9802(struct dmfe_board_info * db)
|
|
{
|
|
uint phy_reg;
|
|
|
|
if ( !HPNA_NoiseFloor ) HPNA_NoiseFloor = DM9802_NOISE_FLOOR;
|
|
phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
|
|
phy_reg = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
|
|
phy_reg = ( phy_reg & 0xff00) + HPNA_NoiseFloor;
|
|
phy_write(db->ioaddr, db->phy_addr, 25, phy_reg, db->chip_id);
|
|
}
|
|
|
|
|
|
/*
|
|
* Check remote HPNA power and speed status. If not correct,
|
|
* issue command again.
|
|
*/
|
|
|
|
static void dmfe_HPNA_remote_cmd_chk(struct dmfe_board_info * db)
|
|
{
|
|
uint phy_reg;
|
|
|
|
/* Got remote device status */
|
|
phy_reg = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id) & 0x60;
|
|
switch(phy_reg) {
|
|
case 0x00: phy_reg = 0x0a00;break; /* LP/LS */
|
|
case 0x20: phy_reg = 0x0900;break; /* LP/HS */
|
|
case 0x40: phy_reg = 0x0600;break; /* HP/LS */
|
|
case 0x60: phy_reg = 0x0500;break; /* HP/HS */
|
|
}
|
|
|
|
/* Check remote device status match our setting ot not */
|
|
if ( phy_reg != (db->HPNA_command & 0x0f00) ) {
|
|
phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command,
|
|
db->chip_id);
|
|
db->HPNA_timer=8;
|
|
} else
|
|
db->HPNA_timer=600; /* Match, every 10 minutes, check */
|
|
}
|
|
|
|
|
|
|
|
static DEFINE_PCI_DEVICE_TABLE(dmfe_pci_tbl) = {
|
|
{ 0x1282, 0x9132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9132_ID },
|
|
{ 0x1282, 0x9102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9102_ID },
|
|
{ 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9100_ID },
|
|
{ 0x1282, 0x9009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9009_ID },
|
|
{ 0, }
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, dmfe_pci_tbl);
|
|
|
|
|
|
#ifdef CONFIG_PM
|
|
static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pci_dev);
|
|
struct dmfe_board_info *db = netdev_priv(dev);
|
|
u32 tmp;
|
|
|
|
/* Disable upper layer interface */
|
|
netif_device_detach(dev);
|
|
|
|
/* Disable Tx/Rx */
|
|
db->cr6_data &= ~(CR6_RXSC | CR6_TXSC);
|
|
update_cr6(db->cr6_data, dev->base_addr);
|
|
|
|
/* Disable Interrupt */
|
|
outl(0, dev->base_addr + DCR7);
|
|
outl(inl (dev->base_addr + DCR5), dev->base_addr + DCR5);
|
|
|
|
/* Fre RX buffers */
|
|
dmfe_free_rxbuffer(db);
|
|
|
|
/* Enable WOL */
|
|
pci_read_config_dword(pci_dev, 0x40, &tmp);
|
|
tmp &= ~(DMFE_WOL_LINKCHANGE|DMFE_WOL_MAGICPACKET);
|
|
|
|
if (db->wol_mode & WAKE_PHY)
|
|
tmp |= DMFE_WOL_LINKCHANGE;
|
|
if (db->wol_mode & WAKE_MAGIC)
|
|
tmp |= DMFE_WOL_MAGICPACKET;
|
|
|
|
pci_write_config_dword(pci_dev, 0x40, tmp);
|
|
|
|
pci_enable_wake(pci_dev, PCI_D3hot, 1);
|
|
pci_enable_wake(pci_dev, PCI_D3cold, 1);
|
|
|
|
/* Power down device*/
|
|
pci_save_state(pci_dev);
|
|
pci_set_power_state(pci_dev, pci_choose_state (pci_dev, state));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dmfe_resume(struct pci_dev *pci_dev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pci_dev);
|
|
u32 tmp;
|
|
|
|
pci_set_power_state(pci_dev, PCI_D0);
|
|
pci_restore_state(pci_dev);
|
|
|
|
/* Re-initialize DM910X board */
|
|
dmfe_init_dm910x(dev);
|
|
|
|
/* Disable WOL */
|
|
pci_read_config_dword(pci_dev, 0x40, &tmp);
|
|
|
|
tmp &= ~(DMFE_WOL_LINKCHANGE | DMFE_WOL_MAGICPACKET);
|
|
pci_write_config_dword(pci_dev, 0x40, tmp);
|
|
|
|
pci_enable_wake(pci_dev, PCI_D3hot, 0);
|
|
pci_enable_wake(pci_dev, PCI_D3cold, 0);
|
|
|
|
/* Restart upper layer interface */
|
|
netif_device_attach(dev);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
#define dmfe_suspend NULL
|
|
#define dmfe_resume NULL
|
|
#endif
|
|
|
|
static struct pci_driver dmfe_driver = {
|
|
.name = "dmfe",
|
|
.id_table = dmfe_pci_tbl,
|
|
.probe = dmfe_init_one,
|
|
.remove = __devexit_p(dmfe_remove_one),
|
|
.suspend = dmfe_suspend,
|
|
.resume = dmfe_resume
|
|
};
|
|
|
|
MODULE_AUTHOR("Sten Wang, sten_wang@davicom.com.tw");
|
|
MODULE_DESCRIPTION("Davicom DM910X fast ethernet driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(DRV_VERSION);
|
|
|
|
module_param(debug, int, 0);
|
|
module_param(mode, byte, 0);
|
|
module_param(cr6set, int, 0);
|
|
module_param(chkmode, byte, 0);
|
|
module_param(HPNA_mode, byte, 0);
|
|
module_param(HPNA_rx_cmd, byte, 0);
|
|
module_param(HPNA_tx_cmd, byte, 0);
|
|
module_param(HPNA_NoiseFloor, byte, 0);
|
|
module_param(SF_mode, byte, 0);
|
|
MODULE_PARM_DESC(debug, "Davicom DM9xxx enable debugging (0-1)");
|
|
MODULE_PARM_DESC(mode, "Davicom DM9xxx: "
|
|
"Bit 0: 10/100Mbps, bit 2: duplex, bit 8: HomePNA");
|
|
|
|
MODULE_PARM_DESC(SF_mode, "Davicom DM9xxx special function "
|
|
"(bit 0: VLAN, bit 1 Flow Control, bit 2: TX pause packet)");
|
|
|
|
/* Description:
|
|
* when user used insmod to add module, system invoked init_module()
|
|
* to initialize and register.
|
|
*/
|
|
|
|
static int __init dmfe_init_module(void)
|
|
{
|
|
int rc;
|
|
|
|
printk(version);
|
|
printed_version = 1;
|
|
|
|
DMFE_DBUG(0, "init_module() ", debug);
|
|
|
|
if (debug)
|
|
dmfe_debug = debug; /* set debug flag */
|
|
if (cr6set)
|
|
dmfe_cr6_user_set = cr6set;
|
|
|
|
switch(mode) {
|
|
case DMFE_10MHF:
|
|
case DMFE_100MHF:
|
|
case DMFE_10MFD:
|
|
case DMFE_100MFD:
|
|
case DMFE_1M_HPNA:
|
|
dmfe_media_mode = mode;
|
|
break;
|
|
default:dmfe_media_mode = DMFE_AUTO;
|
|
break;
|
|
}
|
|
|
|
if (HPNA_mode > 4)
|
|
HPNA_mode = 0; /* Default: LP/HS */
|
|
if (HPNA_rx_cmd > 1)
|
|
HPNA_rx_cmd = 0; /* Default: Ignored remote cmd */
|
|
if (HPNA_tx_cmd > 1)
|
|
HPNA_tx_cmd = 0; /* Default: Don't issue remote cmd */
|
|
if (HPNA_NoiseFloor > 15)
|
|
HPNA_NoiseFloor = 0;
|
|
|
|
rc = pci_register_driver(&dmfe_driver);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Description:
|
|
* when user used rmmod to delete module, system invoked clean_module()
|
|
* to un-register all registered services.
|
|
*/
|
|
|
|
static void __exit dmfe_cleanup_module(void)
|
|
{
|
|
DMFE_DBUG(0, "dmfe_clean_module() ", debug);
|
|
pci_unregister_driver(&dmfe_driver);
|
|
}
|
|
|
|
module_init(dmfe_init_module);
|
|
module_exit(dmfe_cleanup_module);
|