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/*
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8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux.
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Maintained by Jeff Garzik <jgarzik@pobox.com>
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Copyright 2000-2002 Jeff Garzik
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Much code comes from Donald Becker's rtl8139.c driver,
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versions 1.13 and older. This driver was originally based
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on rtl8139.c version 1.07. Header of rtl8139.c version 1.13:
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-----<snip>-----
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Written 1997-2001 by Donald Becker.
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This software may be used and distributed according to the
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terms of the GNU General Public License (GPL), incorporated
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herein by reference. Drivers based on or derived from this
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code fall under the GPL and must retain the authorship,
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copyright and license notice. This file is not a complete
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program and may only be used when the entire operating
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system is licensed under the GPL.
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This driver is for boards based on the RTL8129 and RTL8139
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PCI ethernet chips.
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The author may be reached as becker@scyld.com, or C/O Scyld
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Computing Corporation 410 Severn Ave., Suite 210 Annapolis
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MD 21403
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Support and updates available at
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http://www.scyld.com/network/rtl8139.html
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Twister-tuning table provided by Kinston
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<shangh@realtek.com.tw>.
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-----<snip>-----
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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Contributors:
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Donald Becker - he wrote the original driver, kudos to him!
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(but please don't e-mail him for support, this isn't his driver)
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Tigran Aivazian - bug fixes, skbuff free cleanup
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Martin Mares - suggestions for PCI cleanup
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David S. Miller - PCI DMA and softnet updates
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Ernst Gill - fixes ported from BSD driver
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Daniel Kobras - identified specific locations of
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posted MMIO write bugginess
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Gerard Sharp - bug fix, testing and feedback
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David Ford - Rx ring wrap fix
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Dan DeMaggio - swapped RTL8139 cards with me, and allowed me
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to find and fix a crucial bug on older chipsets.
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Donald Becker/Chris Butterworth/Marcus Westergren -
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Noticed various Rx packet size-related buglets.
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Santiago Garcia Mantinan - testing and feedback
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Jens David - 2.2.x kernel backports
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Martin Dennett - incredibly helpful insight on undocumented
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features of the 8139 chips
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Jean-Jacques Michel - bug fix
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Tobias Ringström - Rx interrupt status checking suggestion
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Andrew Morton - Clear blocked signals, avoid
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buffer overrun setting current->comm.
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Kalle Olavi Niemitalo - Wake-on-LAN ioctls
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Robert Kuebel - Save kernel thread from dying on any signal.
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Submitting bug reports:
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"rtl8139-diag -mmmaaavvveefN" output
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enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log
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*/
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#define DRV_NAME "8139too"
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#define DRV_VERSION "0.9.28"
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/compiler.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/rtnetlink.h>
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#include <linux/delay.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/completion.h>
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#include <linux/crc32.h>
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <asm/irq.h>
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#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION
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#define PFX DRV_NAME ": "
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/* Default Message level */
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#define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
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NETIF_MSG_PROBE | \
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NETIF_MSG_LINK)
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/* enable PIO instead of MMIO, if CONFIG_8139TOO_PIO is selected */
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#ifdef CONFIG_8139TOO_PIO
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#define USE_IO_OPS 1
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#endif
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/* define to 1, 2 or 3 to enable copious debugging info */
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#define RTL8139_DEBUG 0
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/* define to 1 to disable lightweight runtime debugging checks */
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#undef RTL8139_NDEBUG
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#if RTL8139_DEBUG
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/* note: prints function name for you */
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# define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
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#else
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# define DPRINTK(fmt, args...)
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#endif
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#ifdef RTL8139_NDEBUG
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# define assert(expr) do {} while (0)
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#else
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# define assert(expr) \
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if(unlikely(!(expr))) { \
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printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
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#expr,__FILE__,__FUNCTION__,__LINE__); \
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}
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#endif
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/* A few user-configurable values. */
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/* media options */
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#define MAX_UNITS 8
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static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
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static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
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/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
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The RTL chips use a 64 element hash table based on the Ethernet CRC. */
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static int multicast_filter_limit = 32;
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/* bitmapped message enable number */
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static int debug = -1;
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/*
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* Receive ring size
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* Warning: 64K ring has hardware issues and may lock up.
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*/
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#if defined(CONFIG_SH_DREAMCAST)
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#define RX_BUF_IDX 0 /* 8K ring */
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#else
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#define RX_BUF_IDX 2 /* 32K ring */
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#endif
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#define RX_BUF_LEN (8192 << RX_BUF_IDX)
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#define RX_BUF_PAD 16
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#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
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#if RX_BUF_LEN == 65536
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#define RX_BUF_TOT_LEN RX_BUF_LEN
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#else
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#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
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#endif
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/* Number of Tx descriptor registers. */
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#define NUM_TX_DESC 4
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/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
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#define MAX_ETH_FRAME_SIZE 1536
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/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
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#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
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#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
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/* PCI Tuning Parameters
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Threshold is bytes transferred to chip before transmission starts. */
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#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
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/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
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#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
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#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */
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#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
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#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */
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/* Operational parameters that usually are not changed. */
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/* Time in jiffies before concluding the transmitter is hung. */
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#define TX_TIMEOUT (6*HZ)
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enum {
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HAS_MII_XCVR = 0x010000,
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HAS_CHIP_XCVR = 0x020000,
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HAS_LNK_CHNG = 0x040000,
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};
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#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */
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#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */
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#define RTL_MIN_IO_SIZE 0x80
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#define RTL8139B_IO_SIZE 256
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#define RTL8129_CAPS HAS_MII_XCVR
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#define RTL8139_CAPS HAS_CHIP_XCVR|HAS_LNK_CHNG
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typedef enum {
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RTL8139 = 0,
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RTL8129,
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} board_t;
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/* indexed by board_t, above */
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static const struct {
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const char *name;
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u32 hw_flags;
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} board_info[] __devinitdata = {
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{ "RealTek RTL8139", RTL8139_CAPS },
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{ "RealTek RTL8129", RTL8129_CAPS },
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};
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static struct pci_device_id rtl8139_pci_tbl[] = {
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{0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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{0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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#ifdef CONFIG_SH_SECUREEDGE5410
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/* Bogus 8139 silicon reports 8129 without external PROM :-( */
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{0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
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#endif
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#ifdef CONFIG_8139TOO_8129
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{0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 },
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#endif
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/* some crazy cards report invalid vendor ids like
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* 0x0001 here. The other ids are valid and constant,
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* so we simply don't match on the main vendor id.
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*/
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{PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
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{PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 },
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{PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 },
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{0,}
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};
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MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
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static struct {
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const char str[ETH_GSTRING_LEN];
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} ethtool_stats_keys[] = {
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{ "early_rx" },
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{ "tx_buf_mapped" },
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{ "tx_timeouts" },
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{ "rx_lost_in_ring" },
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};
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/* The rest of these values should never change. */
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/* Symbolic offsets to registers. */
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enum RTL8139_registers {
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MAC0 = 0, /* Ethernet hardware address. */
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MAR0 = 8, /* Multicast filter. */
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TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
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TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
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RxBuf = 0x30,
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ChipCmd = 0x37,
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RxBufPtr = 0x38,
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RxBufAddr = 0x3A,
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IntrMask = 0x3C,
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IntrStatus = 0x3E,
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TxConfig = 0x40,
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RxConfig = 0x44,
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Timer = 0x48, /* A general-purpose counter. */
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RxMissed = 0x4C, /* 24 bits valid, write clears. */
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Cfg9346 = 0x50,
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Config0 = 0x51,
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Config1 = 0x52,
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FlashReg = 0x54,
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MediaStatus = 0x58,
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Config3 = 0x59,
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Config4 = 0x5A, /* absent on RTL-8139A */
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HltClk = 0x5B,
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MultiIntr = 0x5C,
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TxSummary = 0x60,
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BasicModeCtrl = 0x62,
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BasicModeStatus = 0x64,
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NWayAdvert = 0x66,
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NWayLPAR = 0x68,
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NWayExpansion = 0x6A,
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/* Undocumented registers, but required for proper operation. */
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FIFOTMS = 0x70, /* FIFO Control and test. */
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CSCR = 0x74, /* Chip Status and Configuration Register. */
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PARA78 = 0x78,
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PARA7c = 0x7c, /* Magic transceiver parameter register. */
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Config5 = 0xD8, /* absent on RTL-8139A */
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};
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enum ClearBitMasks {
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MultiIntrClear = 0xF000,
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ChipCmdClear = 0xE2,
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Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
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};
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enum ChipCmdBits {
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CmdReset = 0x10,
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CmdRxEnb = 0x08,
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CmdTxEnb = 0x04,
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RxBufEmpty = 0x01,
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};
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/* Interrupt register bits, using my own meaningful names. */
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enum IntrStatusBits {
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PCIErr = 0x8000,
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PCSTimeout = 0x4000,
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RxFIFOOver = 0x40,
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RxUnderrun = 0x20,
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RxOverflow = 0x10,
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TxErr = 0x08,
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TxOK = 0x04,
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RxErr = 0x02,
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RxOK = 0x01,
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RxAckBits = RxFIFOOver | RxOverflow | RxOK,
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};
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enum TxStatusBits {
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TxHostOwns = 0x2000,
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TxUnderrun = 0x4000,
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TxStatOK = 0x8000,
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TxOutOfWindow = 0x20000000,
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TxAborted = 0x40000000,
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TxCarrierLost = 0x80000000,
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};
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enum RxStatusBits {
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RxMulticast = 0x8000,
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RxPhysical = 0x4000,
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RxBroadcast = 0x2000,
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RxBadSymbol = 0x0020,
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RxRunt = 0x0010,
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RxTooLong = 0x0008,
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RxCRCErr = 0x0004,
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RxBadAlign = 0x0002,
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RxStatusOK = 0x0001,
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};
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/* Bits in RxConfig. */
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enum rx_mode_bits {
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AcceptErr = 0x20,
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AcceptRunt = 0x10,
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AcceptBroadcast = 0x08,
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|
384 |
AcceptMulticast = 0x04,
|
|
385 |
AcceptMyPhys = 0x02,
|
|
386 |
AcceptAllPhys = 0x01,
|
|
387 |
};
|
|
388 |
|
|
389 |
/* Bits in TxConfig. */
|
|
390 |
enum tx_config_bits {
|
|
391 |
/* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */
|
|
392 |
TxIFGShift = 24,
|
|
393 |
TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */
|
|
394 |
TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */
|
|
395 |
TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */
|
|
396 |
TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */
|
|
397 |
|
|
398 |
TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
|
|
399 |
TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */
|
|
400 |
TxClearAbt = (1 << 0), /* Clear abort (WO) */
|
|
401 |
TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */
|
|
402 |
TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */
|
|
403 |
|
|
404 |
TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
|
|
405 |
};
|
|
406 |
|
|
407 |
/* Bits in Config1 */
|
|
408 |
enum Config1Bits {
|
|
409 |
Cfg1_PM_Enable = 0x01,
|
|
410 |
Cfg1_VPD_Enable = 0x02,
|
|
411 |
Cfg1_PIO = 0x04,
|
|
412 |
Cfg1_MMIO = 0x08,
|
|
413 |
LWAKE = 0x10, /* not on 8139, 8139A */
|
|
414 |
Cfg1_Driver_Load = 0x20,
|
|
415 |
Cfg1_LED0 = 0x40,
|
|
416 |
Cfg1_LED1 = 0x80,
|
|
417 |
SLEEP = (1 << 1), /* only on 8139, 8139A */
|
|
418 |
PWRDN = (1 << 0), /* only on 8139, 8139A */
|
|
419 |
};
|
|
420 |
|
|
421 |
/* Bits in Config3 */
|
|
422 |
enum Config3Bits {
|
|
423 |
Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
|
|
424 |
Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
|
|
425 |
Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
|
|
426 |
Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
|
|
427 |
Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
|
|
428 |
Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
|
|
429 |
Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
|
|
430 |
Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
|
|
431 |
};
|
|
432 |
|
|
433 |
/* Bits in Config4 */
|
|
434 |
enum Config4Bits {
|
|
435 |
LWPTN = (1 << 2), /* not on 8139, 8139A */
|
|
436 |
};
|
|
437 |
|
|
438 |
/* Bits in Config5 */
|
|
439 |
enum Config5Bits {
|
|
440 |
Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
|
|
441 |
Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
|
|
442 |
Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
|
|
443 |
Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */
|
|
444 |
Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
|
|
445 |
Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
|
|
446 |
Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
|
|
447 |
};
|
|
448 |
|
|
449 |
enum RxConfigBits {
|
|
450 |
/* rx fifo threshold */
|
|
451 |
RxCfgFIFOShift = 13,
|
|
452 |
RxCfgFIFONone = (7 << RxCfgFIFOShift),
|
|
453 |
|
|
454 |
/* Max DMA burst */
|
|
455 |
RxCfgDMAShift = 8,
|
|
456 |
RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
|
|
457 |
|
|
458 |
/* rx ring buffer length */
|
|
459 |
RxCfgRcv8K = 0,
|
|
460 |
RxCfgRcv16K = (1 << 11),
|
|
461 |
RxCfgRcv32K = (1 << 12),
|
|
462 |
RxCfgRcv64K = (1 << 11) | (1 << 12),
|
|
463 |
|
|
464 |
/* Disable packet wrap at end of Rx buffer. (not possible with 64k) */
|
|
465 |
RxNoWrap = (1 << 7),
|
|
466 |
};
|
|
467 |
|
|
468 |
/* Twister tuning parameters from RealTek.
|
|
469 |
Completely undocumented, but required to tune bad links on some boards. */
|
|
470 |
enum CSCRBits {
|
|
471 |
CSCR_LinkOKBit = 0x0400,
|
|
472 |
CSCR_LinkChangeBit = 0x0800,
|
|
473 |
CSCR_LinkStatusBits = 0x0f000,
|
|
474 |
CSCR_LinkDownOffCmd = 0x003c0,
|
|
475 |
CSCR_LinkDownCmd = 0x0f3c0,
|
|
476 |
};
|
|
477 |
|
|
478 |
enum Cfg9346Bits {
|
|
479 |
Cfg9346_Lock = 0x00,
|
|
480 |
Cfg9346_Unlock = 0xC0,
|
|
481 |
};
|
|
482 |
|
|
483 |
typedef enum {
|
|
484 |
CH_8139 = 0,
|
|
485 |
CH_8139_K,
|
|
486 |
CH_8139A,
|
|
487 |
CH_8139A_G,
|
|
488 |
CH_8139B,
|
|
489 |
CH_8130,
|
|
490 |
CH_8139C,
|
|
491 |
CH_8100,
|
|
492 |
CH_8100B_8139D,
|
|
493 |
CH_8101,
|
|
494 |
} chip_t;
|
|
495 |
|
|
496 |
enum chip_flags {
|
|
497 |
HasHltClk = (1 << 0),
|
|
498 |
HasLWake = (1 << 1),
|
|
499 |
};
|
|
500 |
|
|
501 |
#define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \
|
|
502 |
(b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22)
|
|
503 |
#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
|
|
504 |
|
|
505 |
/* directly indexed by chip_t, above */
|
|
506 |
static const struct {
|
|
507 |
const char *name;
|
|
508 |
u32 version; /* from RTL8139C/RTL8139D docs */
|
|
509 |
u32 flags;
|
|
510 |
} rtl_chip_info[] = {
|
|
511 |
{ "RTL-8139",
|
|
512 |
HW_REVID(1, 0, 0, 0, 0, 0, 0),
|
|
513 |
HasHltClk,
|
|
514 |
},
|
|
515 |
|
|
516 |
{ "RTL-8139 rev K",
|
|
517 |
HW_REVID(1, 1, 0, 0, 0, 0, 0),
|
|
518 |
HasHltClk,
|
|
519 |
},
|
|
520 |
|
|
521 |
{ "RTL-8139A",
|
|
522 |
HW_REVID(1, 1, 1, 0, 0, 0, 0),
|
|
523 |
HasHltClk, /* XXX undocumented? */
|
|
524 |
},
|
|
525 |
|
|
526 |
{ "RTL-8139A rev G",
|
|
527 |
HW_REVID(1, 1, 1, 0, 0, 1, 0),
|
|
528 |
HasHltClk, /* XXX undocumented? */
|
|
529 |
},
|
|
530 |
|
|
531 |
{ "RTL-8139B",
|
|
532 |
HW_REVID(1, 1, 1, 1, 0, 0, 0),
|
|
533 |
HasLWake,
|
|
534 |
},
|
|
535 |
|
|
536 |
{ "RTL-8130",
|
|
537 |
HW_REVID(1, 1, 1, 1, 1, 0, 0),
|
|
538 |
HasLWake,
|
|
539 |
},
|
|
540 |
|
|
541 |
{ "RTL-8139C",
|
|
542 |
HW_REVID(1, 1, 1, 0, 1, 0, 0),
|
|
543 |
HasLWake,
|
|
544 |
},
|
|
545 |
|
|
546 |
{ "RTL-8100",
|
|
547 |
HW_REVID(1, 1, 1, 1, 0, 1, 0),
|
|
548 |
HasLWake,
|
|
549 |
},
|
|
550 |
|
|
551 |
{ "RTL-8100B/8139D",
|
|
552 |
HW_REVID(1, 1, 1, 0, 1, 0, 1),
|
|
553 |
HasHltClk /* XXX undocumented? */
|
|
554 |
| HasLWake,
|
|
555 |
},
|
|
556 |
|
|
557 |
{ "RTL-8101",
|
|
558 |
HW_REVID(1, 1, 1, 0, 1, 1, 1),
|
|
559 |
HasLWake,
|
|
560 |
},
|
|
561 |
};
|
|
562 |
|
|
563 |
struct rtl_extra_stats {
|
|
564 |
unsigned long early_rx;
|
|
565 |
unsigned long tx_buf_mapped;
|
|
566 |
unsigned long tx_timeouts;
|
|
567 |
unsigned long rx_lost_in_ring;
|
|
568 |
};
|
|
569 |
|
|
570 |
struct rtl8139_private {
|
|
571 |
void __iomem *mmio_addr;
|
|
572 |
int drv_flags;
|
|
573 |
struct pci_dev *pci_dev;
|
|
574 |
u32 msg_enable;
|
|
575 |
struct napi_struct napi;
|
|
576 |
struct net_device *dev;
|
|
577 |
struct net_device_stats stats;
|
|
578 |
|
|
579 |
unsigned char *rx_ring;
|
|
580 |
unsigned int cur_rx; /* RX buf index of next pkt */
|
|
581 |
dma_addr_t rx_ring_dma;
|
|
582 |
|
|
583 |
unsigned int tx_flag;
|
|
584 |
unsigned long cur_tx;
|
|
585 |
unsigned long dirty_tx;
|
|
586 |
unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
|
|
587 |
unsigned char *tx_bufs; /* Tx bounce buffer region. */
|
|
588 |
dma_addr_t tx_bufs_dma;
|
|
589 |
|
|
590 |
signed char phys[4]; /* MII device addresses. */
|
|
591 |
|
|
592 |
/* Twister tune state. */
|
|
593 |
char twistie, twist_row, twist_col;
|
|
594 |
|
|
595 |
unsigned int watchdog_fired : 1;
|
|
596 |
unsigned int default_port : 4; /* Last dev->if_port value. */
|
|
597 |
unsigned int have_thread : 1;
|
|
598 |
|
|
599 |
spinlock_t lock;
|
|
600 |
spinlock_t rx_lock;
|
|
601 |
|
|
602 |
chip_t chipset;
|
|
603 |
u32 rx_config;
|
|
604 |
struct rtl_extra_stats xstats;
|
|
605 |
|
|
606 |
struct delayed_work thread;
|
|
607 |
|
|
608 |
struct mii_if_info mii;
|
|
609 |
unsigned int regs_len;
|
|
610 |
unsigned long fifo_copy_timeout;
|
|
611 |
};
|
|
612 |
|
|
613 |
MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
|
|
614 |
MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
|
|
615 |
MODULE_LICENSE("GPL");
|
|
616 |
MODULE_VERSION(DRV_VERSION);
|
|
617 |
|
|
618 |
module_param(multicast_filter_limit, int, 0);
|
|
619 |
module_param_array(media, int, NULL, 0);
|
|
620 |
module_param_array(full_duplex, int, NULL, 0);
|
|
621 |
module_param(debug, int, 0);
|
|
622 |
MODULE_PARM_DESC (debug, "8139too bitmapped message enable number");
|
|
623 |
MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses");
|
|
624 |
MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
|
|
625 |
MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
|
|
626 |
|
|
627 |
static int read_eeprom (void __iomem *ioaddr, int location, int addr_len);
|
|
628 |
static int rtl8139_open (struct net_device *dev);
|
|
629 |
static int mdio_read (struct net_device *dev, int phy_id, int location);
|
|
630 |
static void mdio_write (struct net_device *dev, int phy_id, int location,
|
|
631 |
int val);
|
|
632 |
static void rtl8139_start_thread(struct rtl8139_private *tp);
|
|
633 |
static void rtl8139_tx_timeout (struct net_device *dev);
|
|
634 |
static void rtl8139_init_ring (struct net_device *dev);
|
|
635 |
static int rtl8139_start_xmit (struct sk_buff *skb,
|
|
636 |
struct net_device *dev);
|
|
637 |
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
638 |
static void rtl8139_poll_controller(struct net_device *dev);
|
|
639 |
#endif
|
|
640 |
static int rtl8139_poll(struct napi_struct *napi, int budget);
|
|
641 |
static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance);
|
|
642 |
static int rtl8139_close (struct net_device *dev);
|
|
643 |
static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
|
|
644 |
static struct net_device_stats *rtl8139_get_stats (struct net_device *dev);
|
|
645 |
static void rtl8139_set_rx_mode (struct net_device *dev);
|
|
646 |
static void __set_rx_mode (struct net_device *dev);
|
|
647 |
static void rtl8139_hw_start (struct net_device *dev);
|
|
648 |
static void rtl8139_thread (struct work_struct *work);
|
|
649 |
static void rtl8139_tx_timeout_task(struct work_struct *work);
|
|
650 |
static const struct ethtool_ops rtl8139_ethtool_ops;
|
|
651 |
|
|
652 |
/* write MMIO register, with flush */
|
|
653 |
/* Flush avoids rtl8139 bug w/ posted MMIO writes */
|
|
654 |
#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0)
|
|
655 |
#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0)
|
|
656 |
#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0)
|
|
657 |
|
|
658 |
/* write MMIO register */
|
|
659 |
#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg))
|
|
660 |
#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg))
|
|
661 |
#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg))
|
|
662 |
|
|
663 |
/* read MMIO register */
|
|
664 |
#define RTL_R8(reg) ioread8 (ioaddr + (reg))
|
|
665 |
#define RTL_R16(reg) ioread16 (ioaddr + (reg))
|
|
666 |
#define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg)))
|
|
667 |
|
|
668 |
|
|
669 |
static const u16 rtl8139_intr_mask =
|
|
670 |
PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
|
|
671 |
TxErr | TxOK | RxErr | RxOK;
|
|
672 |
|
|
673 |
static const u16 rtl8139_norx_intr_mask =
|
|
674 |
PCIErr | PCSTimeout | RxUnderrun |
|
|
675 |
TxErr | TxOK | RxErr ;
|
|
676 |
|
|
677 |
#if RX_BUF_IDX == 0
|
|
678 |
static const unsigned int rtl8139_rx_config =
|
|
679 |
RxCfgRcv8K | RxNoWrap |
|
|
680 |
(RX_FIFO_THRESH << RxCfgFIFOShift) |
|
|
681 |
(RX_DMA_BURST << RxCfgDMAShift);
|
|
682 |
#elif RX_BUF_IDX == 1
|
|
683 |
static const unsigned int rtl8139_rx_config =
|
|
684 |
RxCfgRcv16K | RxNoWrap |
|
|
685 |
(RX_FIFO_THRESH << RxCfgFIFOShift) |
|
|
686 |
(RX_DMA_BURST << RxCfgDMAShift);
|
|
687 |
#elif RX_BUF_IDX == 2
|
|
688 |
static const unsigned int rtl8139_rx_config =
|
|
689 |
RxCfgRcv32K | RxNoWrap |
|
|
690 |
(RX_FIFO_THRESH << RxCfgFIFOShift) |
|
|
691 |
(RX_DMA_BURST << RxCfgDMAShift);
|
|
692 |
#elif RX_BUF_IDX == 3
|
|
693 |
static const unsigned int rtl8139_rx_config =
|
|
694 |
RxCfgRcv64K |
|
|
695 |
(RX_FIFO_THRESH << RxCfgFIFOShift) |
|
|
696 |
(RX_DMA_BURST << RxCfgDMAShift);
|
|
697 |
#else
|
|
698 |
#error "Invalid configuration for 8139_RXBUF_IDX"
|
|
699 |
#endif
|
|
700 |
|
|
701 |
static const unsigned int rtl8139_tx_config =
|
|
702 |
TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift);
|
|
703 |
|
|
704 |
static void __rtl8139_cleanup_dev (struct net_device *dev)
|
|
705 |
{
|
|
706 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
707 |
struct pci_dev *pdev;
|
|
708 |
|
|
709 |
assert (dev != NULL);
|
|
710 |
assert (tp->pci_dev != NULL);
|
|
711 |
pdev = tp->pci_dev;
|
|
712 |
|
|
713 |
#ifdef USE_IO_OPS
|
|
714 |
if (tp->mmio_addr)
|
|
715 |
ioport_unmap (tp->mmio_addr);
|
|
716 |
#else
|
|
717 |
if (tp->mmio_addr)
|
|
718 |
pci_iounmap (pdev, tp->mmio_addr);
|
|
719 |
#endif /* USE_IO_OPS */
|
|
720 |
|
|
721 |
/* it's ok to call this even if we have no regions to free */
|
|
722 |
pci_release_regions (pdev);
|
|
723 |
|
|
724 |
free_netdev(dev);
|
|
725 |
pci_set_drvdata (pdev, NULL);
|
|
726 |
}
|
|
727 |
|
|
728 |
|
|
729 |
static void rtl8139_chip_reset (void __iomem *ioaddr)
|
|
730 |
{
|
|
731 |
int i;
|
|
732 |
|
|
733 |
/* Soft reset the chip. */
|
|
734 |
RTL_W8 (ChipCmd, CmdReset);
|
|
735 |
|
|
736 |
/* Check that the chip has finished the reset. */
|
|
737 |
for (i = 1000; i > 0; i--) {
|
|
738 |
barrier();
|
|
739 |
if ((RTL_R8 (ChipCmd) & CmdReset) == 0)
|
|
740 |
break;
|
|
741 |
udelay (10);
|
|
742 |
}
|
|
743 |
}
|
|
744 |
|
|
745 |
|
|
746 |
static int __devinit rtl8139_init_board (struct pci_dev *pdev,
|
|
747 |
struct net_device **dev_out)
|
|
748 |
{
|
|
749 |
void __iomem *ioaddr;
|
|
750 |
struct net_device *dev;
|
|
751 |
struct rtl8139_private *tp;
|
|
752 |
u8 tmp8;
|
|
753 |
int rc, disable_dev_on_err = 0;
|
|
754 |
unsigned int i;
|
|
755 |
unsigned long pio_start, pio_end, pio_flags, pio_len;
|
|
756 |
unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
|
|
757 |
u32 version;
|
|
758 |
|
|
759 |
assert (pdev != NULL);
|
|
760 |
|
|
761 |
*dev_out = NULL;
|
|
762 |
|
|
763 |
/* dev and priv zeroed in alloc_etherdev */
|
|
764 |
dev = alloc_etherdev (sizeof (*tp));
|
|
765 |
if (dev == NULL) {
|
|
766 |
dev_err(&pdev->dev, "Unable to alloc new net device\n");
|
|
767 |
return -ENOMEM;
|
|
768 |
}
|
|
769 |
SET_NETDEV_DEV(dev, &pdev->dev);
|
|
770 |
|
|
771 |
tp = netdev_priv(dev);
|
|
772 |
tp->pci_dev = pdev;
|
|
773 |
|
|
774 |
/* enable device (incl. PCI PM wakeup and hotplug setup) */
|
|
775 |
rc = pci_enable_device (pdev);
|
|
776 |
if (rc)
|
|
777 |
goto err_out;
|
|
778 |
|
|
779 |
pio_start = pci_resource_start (pdev, 0);
|
|
780 |
pio_end = pci_resource_end (pdev, 0);
|
|
781 |
pio_flags = pci_resource_flags (pdev, 0);
|
|
782 |
pio_len = pci_resource_len (pdev, 0);
|
|
783 |
|
|
784 |
mmio_start = pci_resource_start (pdev, 1);
|
|
785 |
mmio_end = pci_resource_end (pdev, 1);
|
|
786 |
mmio_flags = pci_resource_flags (pdev, 1);
|
|
787 |
mmio_len = pci_resource_len (pdev, 1);
|
|
788 |
|
|
789 |
/* set this immediately, we need to know before
|
|
790 |
* we talk to the chip directly */
|
|
791 |
DPRINTK("PIO region size == 0x%02X\n", pio_len);
|
|
792 |
DPRINTK("MMIO region size == 0x%02lX\n", mmio_len);
|
|
793 |
|
|
794 |
#ifdef USE_IO_OPS
|
|
795 |
/* make sure PCI base addr 0 is PIO */
|
|
796 |
if (!(pio_flags & IORESOURCE_IO)) {
|
|
797 |
dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n");
|
|
798 |
rc = -ENODEV;
|
|
799 |
goto err_out;
|
|
800 |
}
|
|
801 |
/* check for weird/broken PCI region reporting */
|
|
802 |
if (pio_len < RTL_MIN_IO_SIZE) {
|
|
803 |
dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n");
|
|
804 |
rc = -ENODEV;
|
|
805 |
goto err_out;
|
|
806 |
}
|
|
807 |
#else
|
|
808 |
/* make sure PCI base addr 1 is MMIO */
|
|
809 |
if (!(mmio_flags & IORESOURCE_MEM)) {
|
|
810 |
dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
|
|
811 |
rc = -ENODEV;
|
|
812 |
goto err_out;
|
|
813 |
}
|
|
814 |
if (mmio_len < RTL_MIN_IO_SIZE) {
|
|
815 |
dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n");
|
|
816 |
rc = -ENODEV;
|
|
817 |
goto err_out;
|
|
818 |
}
|
|
819 |
#endif
|
|
820 |
|
|
821 |
rc = pci_request_regions (pdev, DRV_NAME);
|
|
822 |
if (rc)
|
|
823 |
goto err_out;
|
|
824 |
disable_dev_on_err = 1;
|
|
825 |
|
|
826 |
/* enable PCI bus-mastering */
|
|
827 |
pci_set_master (pdev);
|
|
828 |
|
|
829 |
#ifdef USE_IO_OPS
|
|
830 |
ioaddr = ioport_map(pio_start, pio_len);
|
|
831 |
if (!ioaddr) {
|
|
832 |
dev_err(&pdev->dev, "cannot map PIO, aborting\n");
|
|
833 |
rc = -EIO;
|
|
834 |
goto err_out;
|
|
835 |
}
|
|
836 |
dev->base_addr = pio_start;
|
|
837 |
tp->mmio_addr = ioaddr;
|
|
838 |
tp->regs_len = pio_len;
|
|
839 |
#else
|
|
840 |
/* ioremap MMIO region */
|
|
841 |
ioaddr = pci_iomap(pdev, 1, 0);
|
|
842 |
if (ioaddr == NULL) {
|
|
843 |
dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
|
|
844 |
rc = -EIO;
|
|
845 |
goto err_out;
|
|
846 |
}
|
|
847 |
dev->base_addr = (long) ioaddr;
|
|
848 |
tp->mmio_addr = ioaddr;
|
|
849 |
tp->regs_len = mmio_len;
|
|
850 |
#endif /* USE_IO_OPS */
|
|
851 |
|
|
852 |
/* Bring old chips out of low-power mode. */
|
|
853 |
RTL_W8 (HltClk, 'R');
|
|
854 |
|
|
855 |
/* check for missing/broken hardware */
|
|
856 |
if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
|
|
857 |
dev_err(&pdev->dev, "Chip not responding, ignoring board\n");
|
|
858 |
rc = -EIO;
|
|
859 |
goto err_out;
|
|
860 |
}
|
|
861 |
|
|
862 |
/* identify chip attached to board */
|
|
863 |
version = RTL_R32 (TxConfig) & HW_REVID_MASK;
|
|
864 |
for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++)
|
|
865 |
if (version == rtl_chip_info[i].version) {
|
|
866 |
tp->chipset = i;
|
|
867 |
goto match;
|
|
868 |
}
|
|
869 |
|
|
870 |
/* if unknown chip, assume array element #0, original RTL-8139 in this case */
|
|
871 |
dev_printk (KERN_DEBUG, &pdev->dev,
|
|
872 |
"unknown chip version, assuming RTL-8139\n");
|
|
873 |
dev_printk (KERN_DEBUG, &pdev->dev,
|
|
874 |
"TxConfig = 0x%lx\n", RTL_R32 (TxConfig));
|
|
875 |
tp->chipset = 0;
|
|
876 |
|
|
877 |
match:
|
|
878 |
DPRINTK ("chipset id (%d) == index %d, '%s'\n",
|
|
879 |
version, i, rtl_chip_info[i].name);
|
|
880 |
|
|
881 |
if (tp->chipset >= CH_8139B) {
|
|
882 |
u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
|
|
883 |
DPRINTK("PCI PM wakeup\n");
|
|
884 |
if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
|
|
885 |
(tmp8 & LWAKE))
|
|
886 |
new_tmp8 &= ~LWAKE;
|
|
887 |
new_tmp8 |= Cfg1_PM_Enable;
|
|
888 |
if (new_tmp8 != tmp8) {
|
|
889 |
RTL_W8 (Cfg9346, Cfg9346_Unlock);
|
|
890 |
RTL_W8 (Config1, tmp8);
|
|
891 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
892 |
}
|
|
893 |
if (rtl_chip_info[tp->chipset].flags & HasLWake) {
|
|
894 |
tmp8 = RTL_R8 (Config4);
|
|
895 |
if (tmp8 & LWPTN) {
|
|
896 |
RTL_W8 (Cfg9346, Cfg9346_Unlock);
|
|
897 |
RTL_W8 (Config4, tmp8 & ~LWPTN);
|
|
898 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
899 |
}
|
|
900 |
}
|
|
901 |
} else {
|
|
902 |
DPRINTK("Old chip wakeup\n");
|
|
903 |
tmp8 = RTL_R8 (Config1);
|
|
904 |
tmp8 &= ~(SLEEP | PWRDN);
|
|
905 |
RTL_W8 (Config1, tmp8);
|
|
906 |
}
|
|
907 |
|
|
908 |
rtl8139_chip_reset (ioaddr);
|
|
909 |
|
|
910 |
*dev_out = dev;
|
|
911 |
return 0;
|
|
912 |
|
|
913 |
err_out:
|
|
914 |
__rtl8139_cleanup_dev (dev);
|
|
915 |
if (disable_dev_on_err)
|
|
916 |
pci_disable_device (pdev);
|
|
917 |
return rc;
|
|
918 |
}
|
|
919 |
|
|
920 |
|
|
921 |
static int __devinit rtl8139_init_one (struct pci_dev *pdev,
|
|
922 |
const struct pci_device_id *ent)
|
|
923 |
{
|
|
924 |
struct net_device *dev = NULL;
|
|
925 |
struct rtl8139_private *tp;
|
|
926 |
int i, addr_len, option;
|
|
927 |
void __iomem *ioaddr;
|
|
928 |
static int board_idx = -1;
|
|
929 |
DECLARE_MAC_BUF(mac);
|
|
930 |
|
|
931 |
assert (pdev != NULL);
|
|
932 |
assert (ent != NULL);
|
|
933 |
|
|
934 |
board_idx++;
|
|
935 |
|
|
936 |
/* when we're built into the kernel, the driver version message
|
|
937 |
* is only printed if at least one 8139 board has been found
|
|
938 |
*/
|
|
939 |
#ifndef MODULE
|
|
940 |
{
|
|
941 |
static int printed_version;
|
|
942 |
if (!printed_version++)
|
|
943 |
printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
|
|
944 |
}
|
|
945 |
#endif
|
|
946 |
|
|
947 |
if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
|
|
948 |
pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) {
|
|
949 |
dev_info(&pdev->dev,
|
|
950 |
"This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n",
|
|
951 |
pdev->vendor, pdev->device, pdev->revision);
|
|
952 |
dev_info(&pdev->dev,
|
|
953 |
"Use the \"8139cp\" driver for improved performance and stability.\n");
|
|
954 |
}
|
|
955 |
|
|
956 |
i = rtl8139_init_board (pdev, &dev);
|
|
957 |
if (i < 0)
|
|
958 |
return i;
|
|
959 |
|
|
960 |
assert (dev != NULL);
|
|
961 |
tp = netdev_priv(dev);
|
|
962 |
tp->dev = dev;
|
|
963 |
|
|
964 |
ioaddr = tp->mmio_addr;
|
|
965 |
assert (ioaddr != NULL);
|
|
966 |
|
|
967 |
addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
|
|
968 |
for (i = 0; i < 3; i++)
|
|
969 |
((u16 *) (dev->dev_addr))[i] =
|
|
970 |
le16_to_cpu (read_eeprom (ioaddr, i + 7, addr_len));
|
|
971 |
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
|
|
972 |
|
|
973 |
/* The Rtl8139-specific entries in the device structure. */
|
|
974 |
dev->open = rtl8139_open;
|
|
975 |
dev->hard_start_xmit = rtl8139_start_xmit;
|
|
976 |
netif_napi_add(dev, &tp->napi, rtl8139_poll, 64);
|
|
977 |
dev->stop = rtl8139_close;
|
|
978 |
dev->get_stats = rtl8139_get_stats;
|
|
979 |
dev->set_multicast_list = rtl8139_set_rx_mode;
|
|
980 |
dev->do_ioctl = netdev_ioctl;
|
|
981 |
dev->ethtool_ops = &rtl8139_ethtool_ops;
|
|
982 |
dev->tx_timeout = rtl8139_tx_timeout;
|
|
983 |
dev->watchdog_timeo = TX_TIMEOUT;
|
|
984 |
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
985 |
dev->poll_controller = rtl8139_poll_controller;
|
|
986 |
#endif
|
|
987 |
|
|
988 |
/* note: the hardware is not capable of sg/csum/highdma, however
|
|
989 |
* through the use of skb_copy_and_csum_dev we enable these
|
|
990 |
* features
|
|
991 |
*/
|
|
992 |
dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA;
|
|
993 |
|
|
994 |
dev->irq = pdev->irq;
|
|
995 |
|
|
996 |
/* tp zeroed and aligned in alloc_etherdev */
|
|
997 |
tp = netdev_priv(dev);
|
|
998 |
|
|
999 |
/* note: tp->chipset set in rtl8139_init_board */
|
|
1000 |
tp->drv_flags = board_info[ent->driver_data].hw_flags;
|
|
1001 |
tp->mmio_addr = ioaddr;
|
|
1002 |
tp->msg_enable =
|
|
1003 |
(debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1));
|
|
1004 |
spin_lock_init (&tp->lock);
|
|
1005 |
spin_lock_init (&tp->rx_lock);
|
|
1006 |
INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
|
|
1007 |
tp->mii.dev = dev;
|
|
1008 |
tp->mii.mdio_read = mdio_read;
|
|
1009 |
tp->mii.mdio_write = mdio_write;
|
|
1010 |
tp->mii.phy_id_mask = 0x3f;
|
|
1011 |
tp->mii.reg_num_mask = 0x1f;
|
|
1012 |
|
|
1013 |
/* dev is fully set up and ready to use now */
|
|
1014 |
DPRINTK("about to register device named %s (%p)...\n", dev->name, dev);
|
|
1015 |
i = register_netdev (dev);
|
|
1016 |
if (i) goto err_out;
|
|
1017 |
|
|
1018 |
pci_set_drvdata (pdev, dev);
|
|
1019 |
|
|
1020 |
printk (KERN_INFO "%s: %s at 0x%lx, "
|
|
1021 |
"%s, IRQ %d\n",
|
|
1022 |
dev->name,
|
|
1023 |
board_info[ent->driver_data].name,
|
|
1024 |
dev->base_addr,
|
|
1025 |
print_mac(mac, dev->dev_addr),
|
|
1026 |
dev->irq);
|
|
1027 |
|
|
1028 |
printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n",
|
|
1029 |
dev->name, rtl_chip_info[tp->chipset].name);
|
|
1030 |
|
|
1031 |
/* Find the connected MII xcvrs.
|
|
1032 |
Doing this in open() would allow detecting external xcvrs later, but
|
|
1033 |
takes too much time. */
|
|
1034 |
#ifdef CONFIG_8139TOO_8129
|
|
1035 |
if (tp->drv_flags & HAS_MII_XCVR) {
|
|
1036 |
int phy, phy_idx = 0;
|
|
1037 |
for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
|
|
1038 |
int mii_status = mdio_read(dev, phy, 1);
|
|
1039 |
if (mii_status != 0xffff && mii_status != 0x0000) {
|
|
1040 |
u16 advertising = mdio_read(dev, phy, 4);
|
|
1041 |
tp->phys[phy_idx++] = phy;
|
|
1042 |
printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x "
|
|
1043 |
"advertising %4.4x.\n",
|
|
1044 |
dev->name, phy, mii_status, advertising);
|
|
1045 |
}
|
|
1046 |
}
|
|
1047 |
if (phy_idx == 0) {
|
|
1048 |
printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM "
|
|
1049 |
"transceiver.\n",
|
|
1050 |
dev->name);
|
|
1051 |
tp->phys[0] = 32;
|
|
1052 |
}
|
|
1053 |
} else
|
|
1054 |
#endif
|
|
1055 |
tp->phys[0] = 32;
|
|
1056 |
tp->mii.phy_id = tp->phys[0];
|
|
1057 |
|
|
1058 |
/* The lower four bits are the media type. */
|
|
1059 |
option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
|
|
1060 |
if (option > 0) {
|
|
1061 |
tp->mii.full_duplex = (option & 0x210) ? 1 : 0;
|
|
1062 |
tp->default_port = option & 0xFF;
|
|
1063 |
if (tp->default_port)
|
|
1064 |
tp->mii.force_media = 1;
|
|
1065 |
}
|
|
1066 |
if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0)
|
|
1067 |
tp->mii.full_duplex = full_duplex[board_idx];
|
|
1068 |
if (tp->mii.full_duplex) {
|
|
1069 |
printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name);
|
|
1070 |
/* Changing the MII-advertised media because might prevent
|
|
1071 |
re-connection. */
|
|
1072 |
tp->mii.force_media = 1;
|
|
1073 |
}
|
|
1074 |
if (tp->default_port) {
|
|
1075 |
printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n",
|
|
1076 |
(option & 0x20 ? 100 : 10),
|
|
1077 |
(option & 0x10 ? "full" : "half"));
|
|
1078 |
mdio_write(dev, tp->phys[0], 0,
|
|
1079 |
((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */
|
|
1080 |
((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */
|
|
1081 |
}
|
|
1082 |
|
|
1083 |
/* Put the chip into low-power mode. */
|
|
1084 |
if (rtl_chip_info[tp->chipset].flags & HasHltClk)
|
|
1085 |
RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
|
|
1086 |
|
|
1087 |
return 0;
|
|
1088 |
|
|
1089 |
err_out:
|
|
1090 |
__rtl8139_cleanup_dev (dev);
|
|
1091 |
pci_disable_device (pdev);
|
|
1092 |
return i;
|
|
1093 |
}
|
|
1094 |
|
|
1095 |
|
|
1096 |
static void __devexit rtl8139_remove_one (struct pci_dev *pdev)
|
|
1097 |
{
|
|
1098 |
struct net_device *dev = pci_get_drvdata (pdev);
|
|
1099 |
|
|
1100 |
assert (dev != NULL);
|
|
1101 |
|
|
1102 |
flush_scheduled_work();
|
|
1103 |
|
|
1104 |
unregister_netdev (dev);
|
|
1105 |
|
|
1106 |
__rtl8139_cleanup_dev (dev);
|
|
1107 |
pci_disable_device (pdev);
|
|
1108 |
}
|
|
1109 |
|
|
1110 |
|
|
1111 |
/* Serial EEPROM section. */
|
|
1112 |
|
|
1113 |
/* EEPROM_Ctrl bits. */
|
|
1114 |
#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
|
|
1115 |
#define EE_CS 0x08 /* EEPROM chip select. */
|
|
1116 |
#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
|
|
1117 |
#define EE_WRITE_0 0x00
|
|
1118 |
#define EE_WRITE_1 0x02
|
|
1119 |
#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
|
|
1120 |
#define EE_ENB (0x80 | EE_CS)
|
|
1121 |
|
|
1122 |
/* Delay between EEPROM clock transitions.
|
|
1123 |
No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
|
|
1124 |
*/
|
|
1125 |
|
|
1126 |
#define eeprom_delay() (void)RTL_R32(Cfg9346)
|
|
1127 |
|
|
1128 |
/* The EEPROM commands include the alway-set leading bit. */
|
|
1129 |
#define EE_WRITE_CMD (5)
|
|
1130 |
#define EE_READ_CMD (6)
|
|
1131 |
#define EE_ERASE_CMD (7)
|
|
1132 |
|
|
1133 |
static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len)
|
|
1134 |
{
|
|
1135 |
int i;
|
|
1136 |
unsigned retval = 0;
|
|
1137 |
int read_cmd = location | (EE_READ_CMD << addr_len);
|
|
1138 |
|
|
1139 |
RTL_W8 (Cfg9346, EE_ENB & ~EE_CS);
|
|
1140 |
RTL_W8 (Cfg9346, EE_ENB);
|
|
1141 |
eeprom_delay ();
|
|
1142 |
|
|
1143 |
/* Shift the read command bits out. */
|
|
1144 |
for (i = 4 + addr_len; i >= 0; i--) {
|
|
1145 |
int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
|
|
1146 |
RTL_W8 (Cfg9346, EE_ENB | dataval);
|
|
1147 |
eeprom_delay ();
|
|
1148 |
RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK);
|
|
1149 |
eeprom_delay ();
|
|
1150 |
}
|
|
1151 |
RTL_W8 (Cfg9346, EE_ENB);
|
|
1152 |
eeprom_delay ();
|
|
1153 |
|
|
1154 |
for (i = 16; i > 0; i--) {
|
|
1155 |
RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK);
|
|
1156 |
eeprom_delay ();
|
|
1157 |
retval =
|
|
1158 |
(retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 :
|
|
1159 |
0);
|
|
1160 |
RTL_W8 (Cfg9346, EE_ENB);
|
|
1161 |
eeprom_delay ();
|
|
1162 |
}
|
|
1163 |
|
|
1164 |
/* Terminate the EEPROM access. */
|
|
1165 |
RTL_W8 (Cfg9346, ~EE_CS);
|
|
1166 |
eeprom_delay ();
|
|
1167 |
|
|
1168 |
return retval;
|
|
1169 |
}
|
|
1170 |
|
|
1171 |
/* MII serial management: mostly bogus for now. */
|
|
1172 |
/* Read and write the MII management registers using software-generated
|
|
1173 |
serial MDIO protocol.
|
|
1174 |
The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
|
|
1175 |
met by back-to-back PCI I/O cycles, but we insert a delay to avoid
|
|
1176 |
"overclocking" issues. */
|
|
1177 |
#define MDIO_DIR 0x80
|
|
1178 |
#define MDIO_DATA_OUT 0x04
|
|
1179 |
#define MDIO_DATA_IN 0x02
|
|
1180 |
#define MDIO_CLK 0x01
|
|
1181 |
#define MDIO_WRITE0 (MDIO_DIR)
|
|
1182 |
#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
|
|
1183 |
|
|
1184 |
#define mdio_delay() RTL_R8(Config4)
|
|
1185 |
|
|
1186 |
|
|
1187 |
static const char mii_2_8139_map[8] = {
|
|
1188 |
BasicModeCtrl,
|
|
1189 |
BasicModeStatus,
|
|
1190 |
0,
|
|
1191 |
0,
|
|
1192 |
NWayAdvert,
|
|
1193 |
NWayLPAR,
|
|
1194 |
NWayExpansion,
|
|
1195 |
0
|
|
1196 |
};
|
|
1197 |
|
|
1198 |
|
|
1199 |
#ifdef CONFIG_8139TOO_8129
|
|
1200 |
/* Syncronize the MII management interface by shifting 32 one bits out. */
|
|
1201 |
static void mdio_sync (void __iomem *ioaddr)
|
|
1202 |
{
|
|
1203 |
int i;
|
|
1204 |
|
|
1205 |
for (i = 32; i >= 0; i--) {
|
|
1206 |
RTL_W8 (Config4, MDIO_WRITE1);
|
|
1207 |
mdio_delay ();
|
|
1208 |
RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK);
|
|
1209 |
mdio_delay ();
|
|
1210 |
}
|
|
1211 |
}
|
|
1212 |
#endif
|
|
1213 |
|
|
1214 |
static int mdio_read (struct net_device *dev, int phy_id, int location)
|
|
1215 |
{
|
|
1216 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1217 |
int retval = 0;
|
|
1218 |
#ifdef CONFIG_8139TOO_8129
|
|
1219 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1220 |
int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
|
|
1221 |
int i;
|
|
1222 |
#endif
|
|
1223 |
|
|
1224 |
if (phy_id > 31) { /* Really a 8139. Use internal registers. */
|
|
1225 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1226 |
return location < 8 && mii_2_8139_map[location] ?
|
|
1227 |
RTL_R16 (mii_2_8139_map[location]) : 0;
|
|
1228 |
}
|
|
1229 |
|
|
1230 |
#ifdef CONFIG_8139TOO_8129
|
|
1231 |
mdio_sync (ioaddr);
|
|
1232 |
/* Shift the read command bits out. */
|
|
1233 |
for (i = 15; i >= 0; i--) {
|
|
1234 |
int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
|
|
1235 |
|
|
1236 |
RTL_W8 (Config4, MDIO_DIR | dataval);
|
|
1237 |
mdio_delay ();
|
|
1238 |
RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK);
|
|
1239 |
mdio_delay ();
|
|
1240 |
}
|
|
1241 |
|
|
1242 |
/* Read the two transition, 16 data, and wire-idle bits. */
|
|
1243 |
for (i = 19; i > 0; i--) {
|
|
1244 |
RTL_W8 (Config4, 0);
|
|
1245 |
mdio_delay ();
|
|
1246 |
retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0);
|
|
1247 |
RTL_W8 (Config4, MDIO_CLK);
|
|
1248 |
mdio_delay ();
|
|
1249 |
}
|
|
1250 |
#endif
|
|
1251 |
|
|
1252 |
return (retval >> 1) & 0xffff;
|
|
1253 |
}
|
|
1254 |
|
|
1255 |
|
|
1256 |
static void mdio_write (struct net_device *dev, int phy_id, int location,
|
|
1257 |
int value)
|
|
1258 |
{
|
|
1259 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1260 |
#ifdef CONFIG_8139TOO_8129
|
|
1261 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1262 |
int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
|
|
1263 |
int i;
|
|
1264 |
#endif
|
|
1265 |
|
|
1266 |
if (phy_id > 31) { /* Really a 8139. Use internal registers. */
|
|
1267 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1268 |
if (location == 0) {
|
|
1269 |
RTL_W8 (Cfg9346, Cfg9346_Unlock);
|
|
1270 |
RTL_W16 (BasicModeCtrl, value);
|
|
1271 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
1272 |
} else if (location < 8 && mii_2_8139_map[location])
|
|
1273 |
RTL_W16 (mii_2_8139_map[location], value);
|
|
1274 |
return;
|
|
1275 |
}
|
|
1276 |
|
|
1277 |
#ifdef CONFIG_8139TOO_8129
|
|
1278 |
mdio_sync (ioaddr);
|
|
1279 |
|
|
1280 |
/* Shift the command bits out. */
|
|
1281 |
for (i = 31; i >= 0; i--) {
|
|
1282 |
int dataval =
|
|
1283 |
(mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
|
|
1284 |
RTL_W8 (Config4, dataval);
|
|
1285 |
mdio_delay ();
|
|
1286 |
RTL_W8 (Config4, dataval | MDIO_CLK);
|
|
1287 |
mdio_delay ();
|
|
1288 |
}
|
|
1289 |
/* Clear out extra bits. */
|
|
1290 |
for (i = 2; i > 0; i--) {
|
|
1291 |
RTL_W8 (Config4, 0);
|
|
1292 |
mdio_delay ();
|
|
1293 |
RTL_W8 (Config4, MDIO_CLK);
|
|
1294 |
mdio_delay ();
|
|
1295 |
}
|
|
1296 |
#endif
|
|
1297 |
}
|
|
1298 |
|
|
1299 |
|
|
1300 |
static int rtl8139_open (struct net_device *dev)
|
|
1301 |
{
|
|
1302 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1303 |
int retval;
|
|
1304 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1305 |
|
|
1306 |
retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
|
|
1307 |
if (retval)
|
|
1308 |
return retval;
|
|
1309 |
|
|
1310 |
tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
|
|
1311 |
&tp->tx_bufs_dma, GFP_KERNEL);
|
|
1312 |
tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
|
|
1313 |
&tp->rx_ring_dma, GFP_KERNEL);
|
|
1314 |
if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
|
|
1315 |
free_irq(dev->irq, dev);
|
|
1316 |
|
|
1317 |
if (tp->tx_bufs)
|
|
1318 |
dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
|
|
1319 |
tp->tx_bufs, tp->tx_bufs_dma);
|
|
1320 |
if (tp->rx_ring)
|
|
1321 |
dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
|
|
1322 |
tp->rx_ring, tp->rx_ring_dma);
|
|
1323 |
|
|
1324 |
return -ENOMEM;
|
|
1325 |
|
|
1326 |
}
|
|
1327 |
|
|
1328 |
napi_enable(&tp->napi);
|
|
1329 |
|
|
1330 |
tp->mii.full_duplex = tp->mii.force_media;
|
|
1331 |
tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
|
|
1332 |
|
|
1333 |
rtl8139_init_ring (dev);
|
|
1334 |
rtl8139_hw_start (dev);
|
|
1335 |
netif_start_queue (dev);
|
|
1336 |
|
|
1337 |
if (netif_msg_ifup(tp))
|
|
1338 |
printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#llx IRQ %d"
|
|
1339 |
" GP Pins %2.2x %s-duplex.\n", dev->name,
|
|
1340 |
(unsigned long long)pci_resource_start (tp->pci_dev, 1),
|
|
1341 |
dev->irq, RTL_R8 (MediaStatus),
|
|
1342 |
tp->mii.full_duplex ? "full" : "half");
|
|
1343 |
|
|
1344 |
rtl8139_start_thread(tp);
|
|
1345 |
|
|
1346 |
return 0;
|
|
1347 |
}
|
|
1348 |
|
|
1349 |
|
|
1350 |
static void rtl_check_media (struct net_device *dev, unsigned int init_media)
|
|
1351 |
{
|
|
1352 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1353 |
|
|
1354 |
if (tp->phys[0] >= 0) {
|
|
1355 |
mii_check_media(&tp->mii, netif_msg_link(tp), init_media);
|
|
1356 |
}
|
|
1357 |
}
|
|
1358 |
|
|
1359 |
/* Start the hardware at open or resume. */
|
|
1360 |
static void rtl8139_hw_start (struct net_device *dev)
|
|
1361 |
{
|
|
1362 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1363 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1364 |
u32 i;
|
|
1365 |
u8 tmp;
|
|
1366 |
|
|
1367 |
/* Bring old chips out of low-power mode. */
|
|
1368 |
if (rtl_chip_info[tp->chipset].flags & HasHltClk)
|
|
1369 |
RTL_W8 (HltClk, 'R');
|
|
1370 |
|
|
1371 |
rtl8139_chip_reset (ioaddr);
|
|
1372 |
|
|
1373 |
/* unlock Config[01234] and BMCR register writes */
|
|
1374 |
RTL_W8_F (Cfg9346, Cfg9346_Unlock);
|
|
1375 |
/* Restore our idea of the MAC address. */
|
|
1376 |
RTL_W32_F (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
|
|
1377 |
RTL_W32_F (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
|
|
1378 |
|
|
1379 |
/* Must enable Tx/Rx before setting transfer thresholds! */
|
|
1380 |
RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
|
|
1381 |
|
|
1382 |
tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
|
|
1383 |
RTL_W32 (RxConfig, tp->rx_config);
|
|
1384 |
RTL_W32 (TxConfig, rtl8139_tx_config);
|
|
1385 |
|
|
1386 |
tp->cur_rx = 0;
|
|
1387 |
|
|
1388 |
rtl_check_media (dev, 1);
|
|
1389 |
|
|
1390 |
if (tp->chipset >= CH_8139B) {
|
|
1391 |
/* Disable magic packet scanning, which is enabled
|
|
1392 |
* when PM is enabled in Config1. It can be reenabled
|
|
1393 |
* via ETHTOOL_SWOL if desired. */
|
|
1394 |
RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic);
|
|
1395 |
}
|
|
1396 |
|
|
1397 |
DPRINTK("init buffer addresses\n");
|
|
1398 |
|
|
1399 |
/* Lock Config[01234] and BMCR register writes */
|
|
1400 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
1401 |
|
|
1402 |
/* init Rx ring buffer DMA address */
|
|
1403 |
RTL_W32_F (RxBuf, tp->rx_ring_dma);
|
|
1404 |
|
|
1405 |
/* init Tx buffer DMA addresses */
|
|
1406 |
for (i = 0; i < NUM_TX_DESC; i++)
|
|
1407 |
RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
|
|
1408 |
|
|
1409 |
RTL_W32 (RxMissed, 0);
|
|
1410 |
|
|
1411 |
rtl8139_set_rx_mode (dev);
|
|
1412 |
|
|
1413 |
/* no early-rx interrupts */
|
|
1414 |
RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear);
|
|
1415 |
|
|
1416 |
/* make sure RxTx has started */
|
|
1417 |
tmp = RTL_R8 (ChipCmd);
|
|
1418 |
if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb)))
|
|
1419 |
RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
|
|
1420 |
|
|
1421 |
/* Enable all known interrupts by setting the interrupt mask. */
|
|
1422 |
RTL_W16 (IntrMask, rtl8139_intr_mask);
|
|
1423 |
}
|
|
1424 |
|
|
1425 |
|
|
1426 |
/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
|
|
1427 |
static void rtl8139_init_ring (struct net_device *dev)
|
|
1428 |
{
|
|
1429 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1430 |
int i;
|
|
1431 |
|
|
1432 |
tp->cur_rx = 0;
|
|
1433 |
tp->cur_tx = 0;
|
|
1434 |
tp->dirty_tx = 0;
|
|
1435 |
|
|
1436 |
for (i = 0; i < NUM_TX_DESC; i++)
|
|
1437 |
tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
|
|
1438 |
}
|
|
1439 |
|
|
1440 |
|
|
1441 |
/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */
|
|
1442 |
static int next_tick = 3 * HZ;
|
|
1443 |
|
|
1444 |
#ifndef CONFIG_8139TOO_TUNE_TWISTER
|
|
1445 |
static inline void rtl8139_tune_twister (struct net_device *dev,
|
|
1446 |
struct rtl8139_private *tp) {}
|
|
1447 |
#else
|
|
1448 |
enum TwisterParamVals {
|
|
1449 |
PARA78_default = 0x78fa8388,
|
|
1450 |
PARA7c_default = 0xcb38de43, /* param[0][3] */
|
|
1451 |
PARA7c_xxx = 0xcb38de43,
|
|
1452 |
};
|
|
1453 |
|
|
1454 |
static const unsigned long param[4][4] = {
|
|
1455 |
{0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
|
|
1456 |
{0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
|
|
1457 |
{0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
|
|
1458 |
{0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
|
|
1459 |
};
|
|
1460 |
|
|
1461 |
static void rtl8139_tune_twister (struct net_device *dev,
|
|
1462 |
struct rtl8139_private *tp)
|
|
1463 |
{
|
|
1464 |
int linkcase;
|
|
1465 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1466 |
|
|
1467 |
/* This is a complicated state machine to configure the "twister" for
|
|
1468 |
impedance/echos based on the cable length.
|
|
1469 |
All of this is magic and undocumented.
|
|
1470 |
*/
|
|
1471 |
switch (tp->twistie) {
|
|
1472 |
case 1:
|
|
1473 |
if (RTL_R16 (CSCR) & CSCR_LinkOKBit) {
|
|
1474 |
/* We have link beat, let us tune the twister. */
|
|
1475 |
RTL_W16 (CSCR, CSCR_LinkDownOffCmd);
|
|
1476 |
tp->twistie = 2; /* Change to state 2. */
|
|
1477 |
next_tick = HZ / 10;
|
|
1478 |
} else {
|
|
1479 |
/* Just put in some reasonable defaults for when beat returns. */
|
|
1480 |
RTL_W16 (CSCR, CSCR_LinkDownCmd);
|
|
1481 |
RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */
|
|
1482 |
RTL_W32 (PARA78, PARA78_default);
|
|
1483 |
RTL_W32 (PARA7c, PARA7c_default);
|
|
1484 |
tp->twistie = 0; /* Bail from future actions. */
|
|
1485 |
}
|
|
1486 |
break;
|
|
1487 |
case 2:
|
|
1488 |
/* Read how long it took to hear the echo. */
|
|
1489 |
linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits;
|
|
1490 |
if (linkcase == 0x7000)
|
|
1491 |
tp->twist_row = 3;
|
|
1492 |
else if (linkcase == 0x3000)
|
|
1493 |
tp->twist_row = 2;
|
|
1494 |
else if (linkcase == 0x1000)
|
|
1495 |
tp->twist_row = 1;
|
|
1496 |
else
|
|
1497 |
tp->twist_row = 0;
|
|
1498 |
tp->twist_col = 0;
|
|
1499 |
tp->twistie = 3; /* Change to state 2. */
|
|
1500 |
next_tick = HZ / 10;
|
|
1501 |
break;
|
|
1502 |
case 3:
|
|
1503 |
/* Put out four tuning parameters, one per 100msec. */
|
|
1504 |
if (tp->twist_col == 0)
|
|
1505 |
RTL_W16 (FIFOTMS, 0);
|
|
1506 |
RTL_W32 (PARA7c, param[(int) tp->twist_row]
|
|
1507 |
[(int) tp->twist_col]);
|
|
1508 |
next_tick = HZ / 10;
|
|
1509 |
if (++tp->twist_col >= 4) {
|
|
1510 |
/* For short cables we are done.
|
|
1511 |
For long cables (row == 3) check for mistune. */
|
|
1512 |
tp->twistie =
|
|
1513 |
(tp->twist_row == 3) ? 4 : 0;
|
|
1514 |
}
|
|
1515 |
break;
|
|
1516 |
case 4:
|
|
1517 |
/* Special case for long cables: check for mistune. */
|
|
1518 |
if ((RTL_R16 (CSCR) &
|
|
1519 |
CSCR_LinkStatusBits) == 0x7000) {
|
|
1520 |
tp->twistie = 0;
|
|
1521 |
break;
|
|
1522 |
} else {
|
|
1523 |
RTL_W32 (PARA7c, 0xfb38de03);
|
|
1524 |
tp->twistie = 5;
|
|
1525 |
next_tick = HZ / 10;
|
|
1526 |
}
|
|
1527 |
break;
|
|
1528 |
case 5:
|
|
1529 |
/* Retune for shorter cable (column 2). */
|
|
1530 |
RTL_W32 (FIFOTMS, 0x20);
|
|
1531 |
RTL_W32 (PARA78, PARA78_default);
|
|
1532 |
RTL_W32 (PARA7c, PARA7c_default);
|
|
1533 |
RTL_W32 (FIFOTMS, 0x00);
|
|
1534 |
tp->twist_row = 2;
|
|
1535 |
tp->twist_col = 0;
|
|
1536 |
tp->twistie = 3;
|
|
1537 |
next_tick = HZ / 10;
|
|
1538 |
break;
|
|
1539 |
|
|
1540 |
default:
|
|
1541 |
/* do nothing */
|
|
1542 |
break;
|
|
1543 |
}
|
|
1544 |
}
|
|
1545 |
#endif /* CONFIG_8139TOO_TUNE_TWISTER */
|
|
1546 |
|
|
1547 |
static inline void rtl8139_thread_iter (struct net_device *dev,
|
|
1548 |
struct rtl8139_private *tp,
|
|
1549 |
void __iomem *ioaddr)
|
|
1550 |
{
|
|
1551 |
int mii_lpa;
|
|
1552 |
|
|
1553 |
mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
|
|
1554 |
|
|
1555 |
if (!tp->mii.force_media && mii_lpa != 0xffff) {
|
|
1556 |
int duplex = (mii_lpa & LPA_100FULL)
|
|
1557 |
|| (mii_lpa & 0x01C0) == 0x0040;
|
|
1558 |
if (tp->mii.full_duplex != duplex) {
|
|
1559 |
tp->mii.full_duplex = duplex;
|
|
1560 |
|
|
1561 |
if (mii_lpa) {
|
|
1562 |
printk (KERN_INFO
|
|
1563 |
"%s: Setting %s-duplex based on MII #%d link"
|
|
1564 |
" partner ability of %4.4x.\n",
|
|
1565 |
dev->name,
|
|
1566 |
tp->mii.full_duplex ? "full" : "half",
|
|
1567 |
tp->phys[0], mii_lpa);
|
|
1568 |
} else {
|
|
1569 |
printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n",
|
|
1570 |
dev->name);
|
|
1571 |
}
|
|
1572 |
#if 0
|
|
1573 |
RTL_W8 (Cfg9346, Cfg9346_Unlock);
|
|
1574 |
RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20);
|
|
1575 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
1576 |
#endif
|
|
1577 |
}
|
|
1578 |
}
|
|
1579 |
|
|
1580 |
next_tick = HZ * 60;
|
|
1581 |
|
|
1582 |
rtl8139_tune_twister (dev, tp);
|
|
1583 |
|
|
1584 |
DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n",
|
|
1585 |
dev->name, RTL_R16 (NWayLPAR));
|
|
1586 |
DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n",
|
|
1587 |
dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus));
|
|
1588 |
DPRINTK ("%s: Chip config %2.2x %2.2x.\n",
|
|
1589 |
dev->name, RTL_R8 (Config0),
|
|
1590 |
RTL_R8 (Config1));
|
|
1591 |
}
|
|
1592 |
|
|
1593 |
static void rtl8139_thread (struct work_struct *work)
|
|
1594 |
{
|
|
1595 |
struct rtl8139_private *tp =
|
|
1596 |
container_of(work, struct rtl8139_private, thread.work);
|
|
1597 |
struct net_device *dev = tp->mii.dev;
|
|
1598 |
unsigned long thr_delay = next_tick;
|
|
1599 |
|
|
1600 |
rtnl_lock();
|
|
1601 |
|
|
1602 |
if (!netif_running(dev))
|
|
1603 |
goto out_unlock;
|
|
1604 |
|
|
1605 |
if (tp->watchdog_fired) {
|
|
1606 |
tp->watchdog_fired = 0;
|
|
1607 |
rtl8139_tx_timeout_task(work);
|
|
1608 |
} else
|
|
1609 |
rtl8139_thread_iter(dev, tp, tp->mmio_addr);
|
|
1610 |
|
|
1611 |
if (tp->have_thread)
|
|
1612 |
schedule_delayed_work(&tp->thread, thr_delay);
|
|
1613 |
out_unlock:
|
|
1614 |
rtnl_unlock ();
|
|
1615 |
}
|
|
1616 |
|
|
1617 |
static void rtl8139_start_thread(struct rtl8139_private *tp)
|
|
1618 |
{
|
|
1619 |
tp->twistie = 0;
|
|
1620 |
if (tp->chipset == CH_8139_K)
|
|
1621 |
tp->twistie = 1;
|
|
1622 |
else if (tp->drv_flags & HAS_LNK_CHNG)
|
|
1623 |
return;
|
|
1624 |
|
|
1625 |
tp->have_thread = 1;
|
|
1626 |
tp->watchdog_fired = 0;
|
|
1627 |
|
|
1628 |
schedule_delayed_work(&tp->thread, next_tick);
|
|
1629 |
}
|
|
1630 |
|
|
1631 |
static inline void rtl8139_tx_clear (struct rtl8139_private *tp)
|
|
1632 |
{
|
|
1633 |
tp->cur_tx = 0;
|
|
1634 |
tp->dirty_tx = 0;
|
|
1635 |
|
|
1636 |
/* XXX account for unsent Tx packets in tp->stats.tx_dropped */
|
|
1637 |
}
|
|
1638 |
|
|
1639 |
static void rtl8139_tx_timeout_task (struct work_struct *work)
|
|
1640 |
{
|
|
1641 |
struct rtl8139_private *tp =
|
|
1642 |
container_of(work, struct rtl8139_private, thread.work);
|
|
1643 |
struct net_device *dev = tp->mii.dev;
|
|
1644 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1645 |
int i;
|
|
1646 |
u8 tmp8;
|
|
1647 |
|
|
1648 |
printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x "
|
|
1649 |
"media %2.2x.\n", dev->name, RTL_R8 (ChipCmd),
|
|
1650 |
RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus));
|
|
1651 |
/* Emit info to figure out what went wrong. */
|
|
1652 |
printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n",
|
|
1653 |
dev->name, tp->cur_tx, tp->dirty_tx);
|
|
1654 |
for (i = 0; i < NUM_TX_DESC; i++)
|
|
1655 |
printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n",
|
|
1656 |
dev->name, i, RTL_R32 (TxStatus0 + (i * 4)),
|
|
1657 |
i == tp->dirty_tx % NUM_TX_DESC ?
|
|
1658 |
" (queue head)" : "");
|
|
1659 |
|
|
1660 |
tp->xstats.tx_timeouts++;
|
|
1661 |
|
|
1662 |
/* disable Tx ASAP, if not already */
|
|
1663 |
tmp8 = RTL_R8 (ChipCmd);
|
|
1664 |
if (tmp8 & CmdTxEnb)
|
|
1665 |
RTL_W8 (ChipCmd, CmdRxEnb);
|
|
1666 |
|
|
1667 |
spin_lock_bh(&tp->rx_lock);
|
|
1668 |
/* Disable interrupts by clearing the interrupt mask. */
|
|
1669 |
RTL_W16 (IntrMask, 0x0000);
|
|
1670 |
|
|
1671 |
/* Stop a shared interrupt from scavenging while we are. */
|
|
1672 |
spin_lock_irq(&tp->lock);
|
|
1673 |
rtl8139_tx_clear (tp);
|
|
1674 |
spin_unlock_irq(&tp->lock);
|
|
1675 |
|
|
1676 |
/* ...and finally, reset everything */
|
|
1677 |
if (netif_running(dev)) {
|
|
1678 |
rtl8139_hw_start (dev);
|
|
1679 |
netif_wake_queue (dev);
|
|
1680 |
}
|
|
1681 |
spin_unlock_bh(&tp->rx_lock);
|
|
1682 |
}
|
|
1683 |
|
|
1684 |
static void rtl8139_tx_timeout (struct net_device *dev)
|
|
1685 |
{
|
|
1686 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1687 |
|
|
1688 |
tp->watchdog_fired = 1;
|
|
1689 |
if (!tp->have_thread) {
|
|
1690 |
INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
|
|
1691 |
schedule_delayed_work(&tp->thread, next_tick);
|
|
1692 |
}
|
|
1693 |
}
|
|
1694 |
|
|
1695 |
static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev)
|
|
1696 |
{
|
|
1697 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
1698 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1699 |
unsigned int entry;
|
|
1700 |
unsigned int len = skb->len;
|
|
1701 |
unsigned long flags;
|
|
1702 |
|
|
1703 |
/* Calculate the next Tx descriptor entry. */
|
|
1704 |
entry = tp->cur_tx % NUM_TX_DESC;
|
|
1705 |
|
|
1706 |
/* Note: the chip doesn't have auto-pad! */
|
|
1707 |
if (likely(len < TX_BUF_SIZE)) {
|
|
1708 |
if (len < ETH_ZLEN)
|
|
1709 |
memset(tp->tx_buf[entry], 0, ETH_ZLEN);
|
|
1710 |
skb_copy_and_csum_dev(skb, tp->tx_buf[entry]);
|
|
1711 |
dev_kfree_skb(skb);
|
|
1712 |
} else {
|
|
1713 |
dev_kfree_skb(skb);
|
|
1714 |
tp->stats.tx_dropped++;
|
|
1715 |
return 0;
|
|
1716 |
}
|
|
1717 |
|
|
1718 |
spin_lock_irqsave(&tp->lock, flags);
|
|
1719 |
RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
|
|
1720 |
tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
|
|
1721 |
|
|
1722 |
dev->trans_start = jiffies;
|
|
1723 |
|
|
1724 |
tp->cur_tx++;
|
|
1725 |
wmb();
|
|
1726 |
|
|
1727 |
if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
|
|
1728 |
netif_stop_queue (dev);
|
|
1729 |
spin_unlock_irqrestore(&tp->lock, flags);
|
|
1730 |
|
|
1731 |
if (netif_msg_tx_queued(tp))
|
|
1732 |
printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n",
|
|
1733 |
dev->name, len, entry);
|
|
1734 |
|
|
1735 |
return 0;
|
|
1736 |
}
|
|
1737 |
|
|
1738 |
|
|
1739 |
static void rtl8139_tx_interrupt (struct net_device *dev,
|
|
1740 |
struct rtl8139_private *tp,
|
|
1741 |
void __iomem *ioaddr)
|
|
1742 |
{
|
|
1743 |
unsigned long dirty_tx, tx_left;
|
|
1744 |
|
|
1745 |
assert (dev != NULL);
|
|
1746 |
assert (ioaddr != NULL);
|
|
1747 |
|
|
1748 |
dirty_tx = tp->dirty_tx;
|
|
1749 |
tx_left = tp->cur_tx - dirty_tx;
|
|
1750 |
while (tx_left > 0) {
|
|
1751 |
int entry = dirty_tx % NUM_TX_DESC;
|
|
1752 |
int txstatus;
|
|
1753 |
|
|
1754 |
txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32)));
|
|
1755 |
|
|
1756 |
if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
|
|
1757 |
break; /* It still hasn't been Txed */
|
|
1758 |
|
|
1759 |
/* Note: TxCarrierLost is always asserted at 100mbps. */
|
|
1760 |
if (txstatus & (TxOutOfWindow | TxAborted)) {
|
|
1761 |
/* There was an major error, log it. */
|
|
1762 |
if (netif_msg_tx_err(tp))
|
|
1763 |
printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
|
|
1764 |
dev->name, txstatus);
|
|
1765 |
tp->stats.tx_errors++;
|
|
1766 |
if (txstatus & TxAborted) {
|
|
1767 |
tp->stats.tx_aborted_errors++;
|
|
1768 |
RTL_W32 (TxConfig, TxClearAbt);
|
|
1769 |
RTL_W16 (IntrStatus, TxErr);
|
|
1770 |
wmb();
|
|
1771 |
}
|
|
1772 |
if (txstatus & TxCarrierLost)
|
|
1773 |
tp->stats.tx_carrier_errors++;
|
|
1774 |
if (txstatus & TxOutOfWindow)
|
|
1775 |
tp->stats.tx_window_errors++;
|
|
1776 |
} else {
|
|
1777 |
if (txstatus & TxUnderrun) {
|
|
1778 |
/* Add 64 to the Tx FIFO threshold. */
|
|
1779 |
if (tp->tx_flag < 0x00300000)
|
|
1780 |
tp->tx_flag += 0x00020000;
|
|
1781 |
tp->stats.tx_fifo_errors++;
|
|
1782 |
}
|
|
1783 |
tp->stats.collisions += (txstatus >> 24) & 15;
|
|
1784 |
tp->stats.tx_bytes += txstatus & 0x7ff;
|
|
1785 |
tp->stats.tx_packets++;
|
|
1786 |
}
|
|
1787 |
|
|
1788 |
dirty_tx++;
|
|
1789 |
tx_left--;
|
|
1790 |
}
|
|
1791 |
|
|
1792 |
#ifndef RTL8139_NDEBUG
|
|
1793 |
if (tp->cur_tx - dirty_tx > NUM_TX_DESC) {
|
|
1794 |
printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n",
|
|
1795 |
dev->name, dirty_tx, tp->cur_tx);
|
|
1796 |
dirty_tx += NUM_TX_DESC;
|
|
1797 |
}
|
|
1798 |
#endif /* RTL8139_NDEBUG */
|
|
1799 |
|
|
1800 |
/* only wake the queue if we did work, and the queue is stopped */
|
|
1801 |
if (tp->dirty_tx != dirty_tx) {
|
|
1802 |
tp->dirty_tx = dirty_tx;
|
|
1803 |
mb();
|
|
1804 |
netif_wake_queue (dev);
|
|
1805 |
}
|
|
1806 |
}
|
|
1807 |
|
|
1808 |
|
|
1809 |
/* TODO: clean this up! Rx reset need not be this intensive */
|
|
1810 |
static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
|
|
1811 |
struct rtl8139_private *tp, void __iomem *ioaddr)
|
|
1812 |
{
|
|
1813 |
u8 tmp8;
|
|
1814 |
#ifdef CONFIG_8139_OLD_RX_RESET
|
|
1815 |
int tmp_work;
|
|
1816 |
#endif
|
|
1817 |
|
|
1818 |
if (netif_msg_rx_err (tp))
|
|
1819 |
printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n",
|
|
1820 |
dev->name, rx_status);
|
|
1821 |
tp->stats.rx_errors++;
|
|
1822 |
if (!(rx_status & RxStatusOK)) {
|
|
1823 |
if (rx_status & RxTooLong) {
|
|
1824 |
DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n",
|
|
1825 |
dev->name, rx_status);
|
|
1826 |
/* A.C.: The chip hangs here. */
|
|
1827 |
}
|
|
1828 |
if (rx_status & (RxBadSymbol | RxBadAlign))
|
|
1829 |
tp->stats.rx_frame_errors++;
|
|
1830 |
if (rx_status & (RxRunt | RxTooLong))
|
|
1831 |
tp->stats.rx_length_errors++;
|
|
1832 |
if (rx_status & RxCRCErr)
|
|
1833 |
tp->stats.rx_crc_errors++;
|
|
1834 |
} else {
|
|
1835 |
tp->xstats.rx_lost_in_ring++;
|
|
1836 |
}
|
|
1837 |
|
|
1838 |
#ifndef CONFIG_8139_OLD_RX_RESET
|
|
1839 |
tmp8 = RTL_R8 (ChipCmd);
|
|
1840 |
RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb);
|
|
1841 |
RTL_W8 (ChipCmd, tmp8);
|
|
1842 |
RTL_W32 (RxConfig, tp->rx_config);
|
|
1843 |
tp->cur_rx = 0;
|
|
1844 |
#else
|
|
1845 |
/* Reset the receiver, based on RealTek recommendation. (Bug?) */
|
|
1846 |
|
|
1847 |
/* disable receive */
|
|
1848 |
RTL_W8_F (ChipCmd, CmdTxEnb);
|
|
1849 |
tmp_work = 200;
|
|
1850 |
while (--tmp_work > 0) {
|
|
1851 |
udelay(1);
|
|
1852 |
tmp8 = RTL_R8 (ChipCmd);
|
|
1853 |
if (!(tmp8 & CmdRxEnb))
|
|
1854 |
break;
|
|
1855 |
}
|
|
1856 |
if (tmp_work <= 0)
|
|
1857 |
printk (KERN_WARNING PFX "rx stop wait too long\n");
|
|
1858 |
/* restart receive */
|
|
1859 |
tmp_work = 200;
|
|
1860 |
while (--tmp_work > 0) {
|
|
1861 |
RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb);
|
|
1862 |
udelay(1);
|
|
1863 |
tmp8 = RTL_R8 (ChipCmd);
|
|
1864 |
if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
|
|
1865 |
break;
|
|
1866 |
}
|
|
1867 |
if (tmp_work <= 0)
|
|
1868 |
printk (KERN_WARNING PFX "tx/rx enable wait too long\n");
|
|
1869 |
|
|
1870 |
/* and reinitialize all rx related registers */
|
|
1871 |
RTL_W8_F (Cfg9346, Cfg9346_Unlock);
|
|
1872 |
/* Must enable Tx/Rx before setting transfer thresholds! */
|
|
1873 |
RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
|
|
1874 |
|
|
1875 |
tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
|
|
1876 |
RTL_W32 (RxConfig, tp->rx_config);
|
|
1877 |
tp->cur_rx = 0;
|
|
1878 |
|
|
1879 |
DPRINTK("init buffer addresses\n");
|
|
1880 |
|
|
1881 |
/* Lock Config[01234] and BMCR register writes */
|
|
1882 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
1883 |
|
|
1884 |
/* init Rx ring buffer DMA address */
|
|
1885 |
RTL_W32_F (RxBuf, tp->rx_ring_dma);
|
|
1886 |
|
|
1887 |
/* A.C.: Reset the multicast list. */
|
|
1888 |
__set_rx_mode (dev);
|
|
1889 |
#endif
|
|
1890 |
}
|
|
1891 |
|
|
1892 |
#if RX_BUF_IDX == 3
|
|
1893 |
static __inline__ void wrap_copy(struct sk_buff *skb, const unsigned char *ring,
|
|
1894 |
u32 offset, unsigned int size)
|
|
1895 |
{
|
|
1896 |
u32 left = RX_BUF_LEN - offset;
|
|
1897 |
|
|
1898 |
if (size > left) {
|
|
1899 |
skb_copy_to_linear_data(skb, ring + offset, left);
|
|
1900 |
skb_copy_to_linear_data_offset(skb, left, ring, size - left);
|
|
1901 |
} else
|
|
1902 |
skb_copy_to_linear_data(skb, ring + offset, size);
|
|
1903 |
}
|
|
1904 |
#endif
|
|
1905 |
|
|
1906 |
static void rtl8139_isr_ack(struct rtl8139_private *tp)
|
|
1907 |
{
|
|
1908 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1909 |
u16 status;
|
|
1910 |
|
|
1911 |
status = RTL_R16 (IntrStatus) & RxAckBits;
|
|
1912 |
|
|
1913 |
/* Clear out errors and receive interrupts */
|
|
1914 |
if (likely(status != 0)) {
|
|
1915 |
if (unlikely(status & (RxFIFOOver | RxOverflow))) {
|
|
1916 |
tp->stats.rx_errors++;
|
|
1917 |
if (status & RxFIFOOver)
|
|
1918 |
tp->stats.rx_fifo_errors++;
|
|
1919 |
}
|
|
1920 |
RTL_W16_F (IntrStatus, RxAckBits);
|
|
1921 |
}
|
|
1922 |
}
|
|
1923 |
|
|
1924 |
static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
|
|
1925 |
int budget)
|
|
1926 |
{
|
|
1927 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
1928 |
int received = 0;
|
|
1929 |
unsigned char *rx_ring = tp->rx_ring;
|
|
1930 |
unsigned int cur_rx = tp->cur_rx;
|
|
1931 |
unsigned int rx_size = 0;
|
|
1932 |
|
|
1933 |
DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x,"
|
|
1934 |
" free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx,
|
|
1935 |
RTL_R16 (RxBufAddr),
|
|
1936 |
RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
|
|
1937 |
|
|
1938 |
while (netif_running(dev) && received < budget
|
|
1939 |
&& (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
|
|
1940 |
u32 ring_offset = cur_rx % RX_BUF_LEN;
|
|
1941 |
u32 rx_status;
|
|
1942 |
unsigned int pkt_size;
|
|
1943 |
struct sk_buff *skb;
|
|
1944 |
|
|
1945 |
rmb();
|
|
1946 |
|
|
1947 |
/* read size+status of next frame from DMA ring buffer */
|
|
1948 |
rx_status = le32_to_cpu (*(u32 *) (rx_ring + ring_offset));
|
|
1949 |
rx_size = rx_status >> 16;
|
|
1950 |
pkt_size = rx_size - 4;
|
|
1951 |
|
|
1952 |
if (netif_msg_rx_status(tp))
|
|
1953 |
printk(KERN_DEBUG "%s: rtl8139_rx() status %4.4x, size %4.4x,"
|
|
1954 |
" cur %4.4x.\n", dev->name, rx_status,
|
|
1955 |
rx_size, cur_rx);
|
|
1956 |
#if RTL8139_DEBUG > 2
|
|
1957 |
{
|
|
1958 |
int i;
|
|
1959 |
DPRINTK ("%s: Frame contents ", dev->name);
|
|
1960 |
for (i = 0; i < 70; i++)
|
|
1961 |
printk (" %2.2x",
|
|
1962 |
rx_ring[ring_offset + i]);
|
|
1963 |
printk (".\n");
|
|
1964 |
}
|
|
1965 |
#endif
|
|
1966 |
|
|
1967 |
/* Packet copy from FIFO still in progress.
|
|
1968 |
* Theoretically, this should never happen
|
|
1969 |
* since EarlyRx is disabled.
|
|
1970 |
*/
|
|
1971 |
if (unlikely(rx_size == 0xfff0)) {
|
|
1972 |
if (!tp->fifo_copy_timeout)
|
|
1973 |
tp->fifo_copy_timeout = jiffies + 2;
|
|
1974 |
else if (time_after(jiffies, tp->fifo_copy_timeout)) {
|
|
1975 |
DPRINTK ("%s: hung FIFO. Reset.", dev->name);
|
|
1976 |
rx_size = 0;
|
|
1977 |
goto no_early_rx;
|
|
1978 |
}
|
|
1979 |
if (netif_msg_intr(tp)) {
|
|
1980 |
printk(KERN_DEBUG "%s: fifo copy in progress.",
|
|
1981 |
dev->name);
|
|
1982 |
}
|
|
1983 |
tp->xstats.early_rx++;
|
|
1984 |
break;
|
|
1985 |
}
|
|
1986 |
|
|
1987 |
no_early_rx:
|
|
1988 |
tp->fifo_copy_timeout = 0;
|
|
1989 |
|
|
1990 |
/* If Rx err or invalid rx_size/rx_status received
|
|
1991 |
* (which happens if we get lost in the ring),
|
|
1992 |
* Rx process gets reset, so we abort any further
|
|
1993 |
* Rx processing.
|
|
1994 |
*/
|
|
1995 |
if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
|
|
1996 |
(rx_size < 8) ||
|
|
1997 |
(!(rx_status & RxStatusOK)))) {
|
|
1998 |
rtl8139_rx_err (rx_status, dev, tp, ioaddr);
|
|
1999 |
received = -1;
|
|
2000 |
goto out;
|
|
2001 |
}
|
|
2002 |
|
|
2003 |
/* Malloc up new buffer, compatible with net-2e. */
|
|
2004 |
/* Omit the four octet CRC from the length. */
|
|
2005 |
|
|
2006 |
skb = dev_alloc_skb (pkt_size + 2);
|
|
2007 |
if (likely(skb)) {
|
|
2008 |
skb_reserve (skb, 2); /* 16 byte align the IP fields. */
|
|
2009 |
#if RX_BUF_IDX == 3
|
|
2010 |
wrap_copy(skb, rx_ring, ring_offset+4, pkt_size);
|
|
2011 |
#else
|
|
2012 |
skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size);
|
|
2013 |
#endif
|
|
2014 |
skb_put (skb, pkt_size);
|
|
2015 |
|
|
2016 |
skb->protocol = eth_type_trans (skb, dev);
|
|
2017 |
|
|
2018 |
dev->last_rx = jiffies;
|
|
2019 |
tp->stats.rx_bytes += pkt_size;
|
|
2020 |
tp->stats.rx_packets++;
|
|
2021 |
|
|
2022 |
netif_receive_skb (skb);
|
|
2023 |
} else {
|
|
2024 |
if (net_ratelimit())
|
|
2025 |
printk (KERN_WARNING
|
|
2026 |
"%s: Memory squeeze, dropping packet.\n",
|
|
2027 |
dev->name);
|
|
2028 |
tp->stats.rx_dropped++;
|
|
2029 |
}
|
|
2030 |
received++;
|
|
2031 |
|
|
2032 |
cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
|
|
2033 |
RTL_W16 (RxBufPtr, (u16) (cur_rx - 16));
|
|
2034 |
|
|
2035 |
rtl8139_isr_ack(tp);
|
|
2036 |
}
|
|
2037 |
|
|
2038 |
if (unlikely(!received || rx_size == 0xfff0))
|
|
2039 |
rtl8139_isr_ack(tp);
|
|
2040 |
|
|
2041 |
#if RTL8139_DEBUG > 1
|
|
2042 |
DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x,"
|
|
2043 |
" free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
|
|
2044 |
RTL_R16 (RxBufAddr),
|
|
2045 |
RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
|
|
2046 |
#endif
|
|
2047 |
|
|
2048 |
tp->cur_rx = cur_rx;
|
|
2049 |
|
|
2050 |
/*
|
|
2051 |
* The receive buffer should be mostly empty.
|
|
2052 |
* Tell NAPI to reenable the Rx irq.
|
|
2053 |
*/
|
|
2054 |
if (tp->fifo_copy_timeout)
|
|
2055 |
received = budget;
|
|
2056 |
|
|
2057 |
out:
|
|
2058 |
return received;
|
|
2059 |
}
|
|
2060 |
|
|
2061 |
|
|
2062 |
static void rtl8139_weird_interrupt (struct net_device *dev,
|
|
2063 |
struct rtl8139_private *tp,
|
|
2064 |
void __iomem *ioaddr,
|
|
2065 |
int status, int link_changed)
|
|
2066 |
{
|
|
2067 |
DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n",
|
|
2068 |
dev->name, status);
|
|
2069 |
|
|
2070 |
assert (dev != NULL);
|
|
2071 |
assert (tp != NULL);
|
|
2072 |
assert (ioaddr != NULL);
|
|
2073 |
|
|
2074 |
/* Update the error count. */
|
|
2075 |
tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
|
|
2076 |
RTL_W32 (RxMissed, 0);
|
|
2077 |
|
|
2078 |
if ((status & RxUnderrun) && link_changed &&
|
|
2079 |
(tp->drv_flags & HAS_LNK_CHNG)) {
|
|
2080 |
rtl_check_media(dev, 0);
|
|
2081 |
status &= ~RxUnderrun;
|
|
2082 |
}
|
|
2083 |
|
|
2084 |
if (status & (RxUnderrun | RxErr))
|
|
2085 |
tp->stats.rx_errors++;
|
|
2086 |
|
|
2087 |
if (status & PCSTimeout)
|
|
2088 |
tp->stats.rx_length_errors++;
|
|
2089 |
if (status & RxUnderrun)
|
|
2090 |
tp->stats.rx_fifo_errors++;
|
|
2091 |
if (status & PCIErr) {
|
|
2092 |
u16 pci_cmd_status;
|
|
2093 |
pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
|
|
2094 |
pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status);
|
|
2095 |
|
|
2096 |
printk (KERN_ERR "%s: PCI Bus error %4.4x.\n",
|
|
2097 |
dev->name, pci_cmd_status);
|
|
2098 |
}
|
|
2099 |
}
|
|
2100 |
|
|
2101 |
static int rtl8139_poll(struct napi_struct *napi, int budget)
|
|
2102 |
{
|
|
2103 |
struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi);
|
|
2104 |
struct net_device *dev = tp->dev;
|
|
2105 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
2106 |
int work_done;
|
|
2107 |
|
|
2108 |
spin_lock(&tp->rx_lock);
|
|
2109 |
work_done = 0;
|
|
2110 |
if (likely(RTL_R16(IntrStatus) & RxAckBits))
|
|
2111 |
work_done += rtl8139_rx(dev, tp, budget);
|
|
2112 |
|
|
2113 |
if (work_done < budget) {
|
|
2114 |
unsigned long flags;
|
|
2115 |
/*
|
|
2116 |
* Order is important since data can get interrupted
|
|
2117 |
* again when we think we are done.
|
|
2118 |
*/
|
|
2119 |
spin_lock_irqsave(&tp->lock, flags);
|
|
2120 |
RTL_W16_F(IntrMask, rtl8139_intr_mask);
|
|
2121 |
__netif_rx_complete(dev, napi);
|
|
2122 |
spin_unlock_irqrestore(&tp->lock, flags);
|
|
2123 |
}
|
|
2124 |
spin_unlock(&tp->rx_lock);
|
|
2125 |
|
|
2126 |
return work_done;
|
|
2127 |
}
|
|
2128 |
|
|
2129 |
/* The interrupt handler does all of the Rx thread work and cleans up
|
|
2130 |
after the Tx thread. */
|
|
2131 |
static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
|
|
2132 |
{
|
|
2133 |
struct net_device *dev = (struct net_device *) dev_instance;
|
|
2134 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
2135 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
2136 |
u16 status, ackstat;
|
|
2137 |
int link_changed = 0; /* avoid bogus "uninit" warning */
|
|
2138 |
int handled = 0;
|
|
2139 |
|
|
2140 |
spin_lock (&tp->lock);
|
|
2141 |
status = RTL_R16 (IntrStatus);
|
|
2142 |
|
|
2143 |
/* shared irq? */
|
|
2144 |
if (unlikely((status & rtl8139_intr_mask) == 0))
|
|
2145 |
goto out;
|
|
2146 |
|
|
2147 |
handled = 1;
|
|
2148 |
|
|
2149 |
/* h/w no longer present (hotplug?) or major error, bail */
|
|
2150 |
if (unlikely(status == 0xFFFF))
|
|
2151 |
goto out;
|
|
2152 |
|
|
2153 |
/* close possible race's with dev_close */
|
|
2154 |
if (unlikely(!netif_running(dev))) {
|
|
2155 |
RTL_W16 (IntrMask, 0);
|
|
2156 |
goto out;
|
|
2157 |
}
|
|
2158 |
|
|
2159 |
/* Acknowledge all of the current interrupt sources ASAP, but
|
|
2160 |
an first get an additional status bit from CSCR. */
|
|
2161 |
if (unlikely(status & RxUnderrun))
|
|
2162 |
link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
|
|
2163 |
|
|
2164 |
ackstat = status & ~(RxAckBits | TxErr);
|
|
2165 |
if (ackstat)
|
|
2166 |
RTL_W16 (IntrStatus, ackstat);
|
|
2167 |
|
|
2168 |
/* Receive packets are processed by poll routine.
|
|
2169 |
If not running start it now. */
|
|
2170 |
if (status & RxAckBits){
|
|
2171 |
if (netif_rx_schedule_prep(dev, &tp->napi)) {
|
|
2172 |
RTL_W16_F (IntrMask, rtl8139_norx_intr_mask);
|
|
2173 |
__netif_rx_schedule(dev, &tp->napi);
|
|
2174 |
}
|
|
2175 |
}
|
|
2176 |
|
|
2177 |
/* Check uncommon events with one test. */
|
|
2178 |
if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr)))
|
|
2179 |
rtl8139_weird_interrupt (dev, tp, ioaddr,
|
|
2180 |
status, link_changed);
|
|
2181 |
|
|
2182 |
if (status & (TxOK | TxErr)) {
|
|
2183 |
rtl8139_tx_interrupt (dev, tp, ioaddr);
|
|
2184 |
if (status & TxErr)
|
|
2185 |
RTL_W16 (IntrStatus, TxErr);
|
|
2186 |
}
|
|
2187 |
out:
|
|
2188 |
spin_unlock (&tp->lock);
|
|
2189 |
|
|
2190 |
DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n",
|
|
2191 |
dev->name, RTL_R16 (IntrStatus));
|
|
2192 |
return IRQ_RETVAL(handled);
|
|
2193 |
}
|
|
2194 |
|
|
2195 |
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
2196 |
/*
|
|
2197 |
* Polling receive - used by netconsole and other diagnostic tools
|
|
2198 |
* to allow network i/o with interrupts disabled.
|
|
2199 |
*/
|
|
2200 |
static void rtl8139_poll_controller(struct net_device *dev)
|
|
2201 |
{
|
|
2202 |
disable_irq(dev->irq);
|
|
2203 |
rtl8139_interrupt(dev->irq, dev);
|
|
2204 |
enable_irq(dev->irq);
|
|
2205 |
}
|
|
2206 |
#endif
|
|
2207 |
|
|
2208 |
static int rtl8139_close (struct net_device *dev)
|
|
2209 |
{
|
|
2210 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
2211 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
2212 |
unsigned long flags;
|
|
2213 |
|
|
2214 |
netif_stop_queue(dev);
|
|
2215 |
napi_disable(&tp->napi);
|
|
2216 |
|
|
2217 |
if (netif_msg_ifdown(tp))
|
|
2218 |
printk(KERN_DEBUG "%s: Shutting down ethercard, status was 0x%4.4x.\n",
|
|
2219 |
dev->name, RTL_R16 (IntrStatus));
|
|
2220 |
|
|
2221 |
spin_lock_irqsave (&tp->lock, flags);
|
|
2222 |
|
|
2223 |
/* Stop the chip's Tx and Rx DMA processes. */
|
|
2224 |
RTL_W8 (ChipCmd, 0);
|
|
2225 |
|
|
2226 |
/* Disable interrupts by clearing the interrupt mask. */
|
|
2227 |
RTL_W16 (IntrMask, 0);
|
|
2228 |
|
|
2229 |
/* Update the error counts. */
|
|
2230 |
tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
|
|
2231 |
RTL_W32 (RxMissed, 0);
|
|
2232 |
|
|
2233 |
spin_unlock_irqrestore (&tp->lock, flags);
|
|
2234 |
|
|
2235 |
synchronize_irq (dev->irq); /* racy, but that's ok here */
|
|
2236 |
free_irq (dev->irq, dev);
|
|
2237 |
|
|
2238 |
rtl8139_tx_clear (tp);
|
|
2239 |
|
|
2240 |
dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
|
|
2241 |
tp->rx_ring, tp->rx_ring_dma);
|
|
2242 |
dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
|
|
2243 |
tp->tx_bufs, tp->tx_bufs_dma);
|
|
2244 |
tp->rx_ring = NULL;
|
|
2245 |
tp->tx_bufs = NULL;
|
|
2246 |
|
|
2247 |
/* Green! Put the chip in low-power mode. */
|
|
2248 |
RTL_W8 (Cfg9346, Cfg9346_Unlock);
|
|
2249 |
|
|
2250 |
if (rtl_chip_info[tp->chipset].flags & HasHltClk)
|
|
2251 |
RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
|
|
2252 |
|
|
2253 |
return 0;
|
|
2254 |
}
|
|
2255 |
|
|
2256 |
|
|
2257 |
/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to
|
|
2258 |
kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and
|
|
2259 |
other threads or interrupts aren't messing with the 8139. */
|
|
2260 |
static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
|
2261 |
{
|
|
2262 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2263 |
void __iomem *ioaddr = np->mmio_addr;
|
|
2264 |
|
|
2265 |
spin_lock_irq(&np->lock);
|
|
2266 |
if (rtl_chip_info[np->chipset].flags & HasLWake) {
|
|
2267 |
u8 cfg3 = RTL_R8 (Config3);
|
|
2268 |
u8 cfg5 = RTL_R8 (Config5);
|
|
2269 |
|
|
2270 |
wol->supported = WAKE_PHY | WAKE_MAGIC
|
|
2271 |
| WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
|
|
2272 |
|
|
2273 |
wol->wolopts = 0;
|
|
2274 |
if (cfg3 & Cfg3_LinkUp)
|
|
2275 |
wol->wolopts |= WAKE_PHY;
|
|
2276 |
if (cfg3 & Cfg3_Magic)
|
|
2277 |
wol->wolopts |= WAKE_MAGIC;
|
|
2278 |
/* (KON)FIXME: See how netdev_set_wol() handles the
|
|
2279 |
following constants. */
|
|
2280 |
if (cfg5 & Cfg5_UWF)
|
|
2281 |
wol->wolopts |= WAKE_UCAST;
|
|
2282 |
if (cfg5 & Cfg5_MWF)
|
|
2283 |
wol->wolopts |= WAKE_MCAST;
|
|
2284 |
if (cfg5 & Cfg5_BWF)
|
|
2285 |
wol->wolopts |= WAKE_BCAST;
|
|
2286 |
}
|
|
2287 |
spin_unlock_irq(&np->lock);
|
|
2288 |
}
|
|
2289 |
|
|
2290 |
|
|
2291 |
/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes
|
|
2292 |
that wol points to kernel memory and other threads or interrupts
|
|
2293 |
aren't messing with the 8139. */
|
|
2294 |
static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
|
2295 |
{
|
|
2296 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2297 |
void __iomem *ioaddr = np->mmio_addr;
|
|
2298 |
u32 support;
|
|
2299 |
u8 cfg3, cfg5;
|
|
2300 |
|
|
2301 |
support = ((rtl_chip_info[np->chipset].flags & HasLWake)
|
|
2302 |
? (WAKE_PHY | WAKE_MAGIC
|
|
2303 |
| WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)
|
|
2304 |
: 0);
|
|
2305 |
if (wol->wolopts & ~support)
|
|
2306 |
return -EINVAL;
|
|
2307 |
|
|
2308 |
spin_lock_irq(&np->lock);
|
|
2309 |
cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic);
|
|
2310 |
if (wol->wolopts & WAKE_PHY)
|
|
2311 |
cfg3 |= Cfg3_LinkUp;
|
|
2312 |
if (wol->wolopts & WAKE_MAGIC)
|
|
2313 |
cfg3 |= Cfg3_Magic;
|
|
2314 |
RTL_W8 (Cfg9346, Cfg9346_Unlock);
|
|
2315 |
RTL_W8 (Config3, cfg3);
|
|
2316 |
RTL_W8 (Cfg9346, Cfg9346_Lock);
|
|
2317 |
|
|
2318 |
cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF);
|
|
2319 |
/* (KON)FIXME: These are untested. We may have to set the
|
|
2320 |
CRC0, Wakeup0 and LSBCRC0 registers too, but I have no
|
|
2321 |
documentation. */
|
|
2322 |
if (wol->wolopts & WAKE_UCAST)
|
|
2323 |
cfg5 |= Cfg5_UWF;
|
|
2324 |
if (wol->wolopts & WAKE_MCAST)
|
|
2325 |
cfg5 |= Cfg5_MWF;
|
|
2326 |
if (wol->wolopts & WAKE_BCAST)
|
|
2327 |
cfg5 |= Cfg5_BWF;
|
|
2328 |
RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */
|
|
2329 |
spin_unlock_irq(&np->lock);
|
|
2330 |
|
|
2331 |
return 0;
|
|
2332 |
}
|
|
2333 |
|
|
2334 |
static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
|
|
2335 |
{
|
|
2336 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2337 |
strcpy(info->driver, DRV_NAME);
|
|
2338 |
strcpy(info->version, DRV_VERSION);
|
|
2339 |
strcpy(info->bus_info, pci_name(np->pci_dev));
|
|
2340 |
info->regdump_len = np->regs_len;
|
|
2341 |
}
|
|
2342 |
|
|
2343 |
static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
2344 |
{
|
|
2345 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2346 |
spin_lock_irq(&np->lock);
|
|
2347 |
mii_ethtool_gset(&np->mii, cmd);
|
|
2348 |
spin_unlock_irq(&np->lock);
|
|
2349 |
return 0;
|
|
2350 |
}
|
|
2351 |
|
|
2352 |
static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
2353 |
{
|
|
2354 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2355 |
int rc;
|
|
2356 |
spin_lock_irq(&np->lock);
|
|
2357 |
rc = mii_ethtool_sset(&np->mii, cmd);
|
|
2358 |
spin_unlock_irq(&np->lock);
|
|
2359 |
return rc;
|
|
2360 |
}
|
|
2361 |
|
|
2362 |
static int rtl8139_nway_reset(struct net_device *dev)
|
|
2363 |
{
|
|
2364 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2365 |
return mii_nway_restart(&np->mii);
|
|
2366 |
}
|
|
2367 |
|
|
2368 |
static u32 rtl8139_get_link(struct net_device *dev)
|
|
2369 |
{
|
|
2370 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2371 |
return mii_link_ok(&np->mii);
|
|
2372 |
}
|
|
2373 |
|
|
2374 |
static u32 rtl8139_get_msglevel(struct net_device *dev)
|
|
2375 |
{
|
|
2376 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2377 |
return np->msg_enable;
|
|
2378 |
}
|
|
2379 |
|
|
2380 |
static void rtl8139_set_msglevel(struct net_device *dev, u32 datum)
|
|
2381 |
{
|
|
2382 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2383 |
np->msg_enable = datum;
|
|
2384 |
}
|
|
2385 |
|
|
2386 |
/* TODO: we are too slack to do reg dumping for pio, for now */
|
|
2387 |
#ifdef CONFIG_8139TOO_PIO
|
|
2388 |
#define rtl8139_get_regs_len NULL
|
|
2389 |
#define rtl8139_get_regs NULL
|
|
2390 |
#else
|
|
2391 |
static int rtl8139_get_regs_len(struct net_device *dev)
|
|
2392 |
{
|
|
2393 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2394 |
return np->regs_len;
|
|
2395 |
}
|
|
2396 |
|
|
2397 |
static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
|
|
2398 |
{
|
|
2399 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2400 |
|
|
2401 |
regs->version = RTL_REGS_VER;
|
|
2402 |
|
|
2403 |
spin_lock_irq(&np->lock);
|
|
2404 |
memcpy_fromio(regbuf, np->mmio_addr, regs->len);
|
|
2405 |
spin_unlock_irq(&np->lock);
|
|
2406 |
}
|
|
2407 |
#endif /* CONFIG_8139TOO_MMIO */
|
|
2408 |
|
|
2409 |
static int rtl8139_get_sset_count(struct net_device *dev, int sset)
|
|
2410 |
{
|
|
2411 |
switch (sset) {
|
|
2412 |
case ETH_SS_STATS:
|
|
2413 |
return RTL_NUM_STATS;
|
|
2414 |
default:
|
|
2415 |
return -EOPNOTSUPP;
|
|
2416 |
}
|
|
2417 |
}
|
|
2418 |
|
|
2419 |
static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
|
|
2420 |
{
|
|
2421 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2422 |
|
|
2423 |
data[0] = np->xstats.early_rx;
|
|
2424 |
data[1] = np->xstats.tx_buf_mapped;
|
|
2425 |
data[2] = np->xstats.tx_timeouts;
|
|
2426 |
data[3] = np->xstats.rx_lost_in_ring;
|
|
2427 |
}
|
|
2428 |
|
|
2429 |
static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data)
|
|
2430 |
{
|
|
2431 |
memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
|
|
2432 |
}
|
|
2433 |
|
|
2434 |
static const struct ethtool_ops rtl8139_ethtool_ops = {
|
|
2435 |
.get_drvinfo = rtl8139_get_drvinfo,
|
|
2436 |
.get_settings = rtl8139_get_settings,
|
|
2437 |
.set_settings = rtl8139_set_settings,
|
|
2438 |
.get_regs_len = rtl8139_get_regs_len,
|
|
2439 |
.get_regs = rtl8139_get_regs,
|
|
2440 |
.nway_reset = rtl8139_nway_reset,
|
|
2441 |
.get_link = rtl8139_get_link,
|
|
2442 |
.get_msglevel = rtl8139_get_msglevel,
|
|
2443 |
.set_msglevel = rtl8139_set_msglevel,
|
|
2444 |
.get_wol = rtl8139_get_wol,
|
|
2445 |
.set_wol = rtl8139_set_wol,
|
|
2446 |
.get_strings = rtl8139_get_strings,
|
|
2447 |
.get_sset_count = rtl8139_get_sset_count,
|
|
2448 |
.get_ethtool_stats = rtl8139_get_ethtool_stats,
|
|
2449 |
};
|
|
2450 |
|
|
2451 |
static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
|
2452 |
{
|
|
2453 |
struct rtl8139_private *np = netdev_priv(dev);
|
|
2454 |
int rc;
|
|
2455 |
|
|
2456 |
if (!netif_running(dev))
|
|
2457 |
return -EINVAL;
|
|
2458 |
|
|
2459 |
spin_lock_irq(&np->lock);
|
|
2460 |
rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL);
|
|
2461 |
spin_unlock_irq(&np->lock);
|
|
2462 |
|
|
2463 |
return rc;
|
|
2464 |
}
|
|
2465 |
|
|
2466 |
|
|
2467 |
static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
|
|
2468 |
{
|
|
2469 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
2470 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
2471 |
unsigned long flags;
|
|
2472 |
|
|
2473 |
if (netif_running(dev)) {
|
|
2474 |
spin_lock_irqsave (&tp->lock, flags);
|
|
2475 |
tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
|
|
2476 |
RTL_W32 (RxMissed, 0);
|
|
2477 |
spin_unlock_irqrestore (&tp->lock, flags);
|
|
2478 |
}
|
|
2479 |
|
|
2480 |
return &tp->stats;
|
|
2481 |
}
|
|
2482 |
|
|
2483 |
/* Set or clear the multicast filter for this adaptor.
|
|
2484 |
This routine is not state sensitive and need not be SMP locked. */
|
|
2485 |
|
|
2486 |
static void __set_rx_mode (struct net_device *dev)
|
|
2487 |
{
|
|
2488 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
2489 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
2490 |
u32 mc_filter[2]; /* Multicast hash filter */
|
|
2491 |
int i, rx_mode;
|
|
2492 |
u32 tmp;
|
|
2493 |
|
|
2494 |
DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n",
|
|
2495 |
dev->name, dev->flags, RTL_R32 (RxConfig));
|
|
2496 |
|
|
2497 |
/* Note: do not reorder, GCC is clever about common statements. */
|
|
2498 |
if (dev->flags & IFF_PROMISC) {
|
|
2499 |
rx_mode =
|
|
2500 |
AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
|
|
2501 |
AcceptAllPhys;
|
|
2502 |
mc_filter[1] = mc_filter[0] = 0xffffffff;
|
|
2503 |
} else if ((dev->mc_count > multicast_filter_limit)
|
|
2504 |
|| (dev->flags & IFF_ALLMULTI)) {
|
|
2505 |
/* Too many to filter perfectly -- accept all multicasts. */
|
|
2506 |
rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
|
|
2507 |
mc_filter[1] = mc_filter[0] = 0xffffffff;
|
|
2508 |
} else {
|
|
2509 |
struct dev_mc_list *mclist;
|
|
2510 |
rx_mode = AcceptBroadcast | AcceptMyPhys;
|
|
2511 |
mc_filter[1] = mc_filter[0] = 0;
|
|
2512 |
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
|
|
2513 |
i++, mclist = mclist->next) {
|
|
2514 |
int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
|
|
2515 |
|
|
2516 |
mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
|
|
2517 |
rx_mode |= AcceptMulticast;
|
|
2518 |
}
|
|
2519 |
}
|
|
2520 |
|
|
2521 |
/* We can safely update without stopping the chip. */
|
|
2522 |
tmp = rtl8139_rx_config | rx_mode;
|
|
2523 |
if (tp->rx_config != tmp) {
|
|
2524 |
RTL_W32_F (RxConfig, tmp);
|
|
2525 |
tp->rx_config = tmp;
|
|
2526 |
}
|
|
2527 |
RTL_W32_F (MAR0 + 0, mc_filter[0]);
|
|
2528 |
RTL_W32_F (MAR0 + 4, mc_filter[1]);
|
|
2529 |
}
|
|
2530 |
|
|
2531 |
static void rtl8139_set_rx_mode (struct net_device *dev)
|
|
2532 |
{
|
|
2533 |
unsigned long flags;
|
|
2534 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
2535 |
|
|
2536 |
spin_lock_irqsave (&tp->lock, flags);
|
|
2537 |
__set_rx_mode(dev);
|
|
2538 |
spin_unlock_irqrestore (&tp->lock, flags);
|
|
2539 |
}
|
|
2540 |
|
|
2541 |
#ifdef CONFIG_PM
|
|
2542 |
|
|
2543 |
static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state)
|
|
2544 |
{
|
|
2545 |
struct net_device *dev = pci_get_drvdata (pdev);
|
|
2546 |
struct rtl8139_private *tp = netdev_priv(dev);
|
|
2547 |
void __iomem *ioaddr = tp->mmio_addr;
|
|
2548 |
unsigned long flags;
|
|
2549 |
|
|
2550 |
pci_save_state (pdev);
|
|
2551 |
|
|
2552 |
if (!netif_running (dev))
|
|
2553 |
return 0;
|
|
2554 |
|
|
2555 |
netif_device_detach (dev);
|
|
2556 |
|
|
2557 |
spin_lock_irqsave (&tp->lock, flags);
|
|
2558 |
|
|
2559 |
/* Disable interrupts, stop Tx and Rx. */
|
|
2560 |
RTL_W16 (IntrMask, 0);
|
|
2561 |
RTL_W8 (ChipCmd, 0);
|
|
2562 |
|
|
2563 |
/* Update the error counts. */
|
|
2564 |
tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
|
|
2565 |
RTL_W32 (RxMissed, 0);
|
|
2566 |
|
|
2567 |
spin_unlock_irqrestore (&tp->lock, flags);
|
|
2568 |
|
|
2569 |
pci_set_power_state (pdev, PCI_D3hot);
|
|
2570 |
|
|
2571 |
return 0;
|
|
2572 |
}
|
|
2573 |
|
|
2574 |
|
|
2575 |
static int rtl8139_resume (struct pci_dev *pdev)
|
|
2576 |
{
|
|
2577 |
struct net_device *dev = pci_get_drvdata (pdev);
|
|
2578 |
|
|
2579 |
pci_restore_state (pdev);
|
|
2580 |
if (!netif_running (dev))
|
|
2581 |
return 0;
|
|
2582 |
pci_set_power_state (pdev, PCI_D0);
|
|
2583 |
rtl8139_init_ring (dev);
|
|
2584 |
rtl8139_hw_start (dev);
|
|
2585 |
netif_device_attach (dev);
|
|
2586 |
return 0;
|
|
2587 |
}
|
|
2588 |
|
|
2589 |
#endif /* CONFIG_PM */
|
|
2590 |
|
|
2591 |
|
|
2592 |
static struct pci_driver rtl8139_pci_driver = {
|
|
2593 |
.name = DRV_NAME,
|
|
2594 |
.id_table = rtl8139_pci_tbl,
|
|
2595 |
.probe = rtl8139_init_one,
|
|
2596 |
.remove = __devexit_p(rtl8139_remove_one),
|
|
2597 |
#ifdef CONFIG_PM
|
|
2598 |
.suspend = rtl8139_suspend,
|
|
2599 |
.resume = rtl8139_resume,
|
|
2600 |
#endif /* CONFIG_PM */
|
|
2601 |
};
|
|
2602 |
|
|
2603 |
|
|
2604 |
static int __init rtl8139_init_module (void)
|
|
2605 |
{
|
|
2606 |
/* when we're a module, we always print a version message,
|
|
2607 |
* even if no 8139 board is found.
|
|
2608 |
*/
|
|
2609 |
#ifdef MODULE
|
|
2610 |
printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
|
|
2611 |
#endif
|
|
2612 |
|
|
2613 |
return pci_register_driver(&rtl8139_pci_driver);
|
|
2614 |
}
|
|
2615 |
|
|
2616 |
|
|
2617 |
static void __exit rtl8139_cleanup_module (void)
|
|
2618 |
{
|
|
2619 |
pci_unregister_driver (&rtl8139_pci_driver);
|
|
2620 |
}
|
|
2621 |
|
|
2622 |
|
|
2623 |
module_init(rtl8139_init_module);
|
|
2624 |
module_exit(rtl8139_cleanup_module);
|