blob: 084d78dd16376da3932919f883b9656e2dc12882 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* pcnet32.c: An AMD PCnet32 ethernet driver for linux. */
2/*
3 * Copyright 1996-1999 Thomas Bogendoerfer
4 *
5 * Derived from the lance driver written 1993,1994,1995 by Donald Becker.
6 *
7 * Copyright 1993 United States Government as represented by the
8 * Director, National Security Agency.
9 *
10 * This software may be used and distributed according to the terms
11 * of the GNU General Public License, incorporated herein by reference.
12 *
13 * This driver is for PCnet32 and PCnetPCI based ethercards
14 */
15/**************************************************************************
16 * 23 Oct, 2000.
17 * Fixed a few bugs, related to running the controller in 32bit mode.
18 *
19 * Carsten Langgaard, carstenl@mips.com
20 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
21 *
22 *************************************************************************/
23
Joe Perches13ff83b2010-02-15 08:34:25 +000024#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#define DRV_NAME "pcnet32"
Don Fry01935d72008-04-29 13:49:58 -070027#define DRV_VERSION "1.35"
28#define DRV_RELDATE "21.Apr.2008"
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#define PFX DRV_NAME ": "
30
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050031static const char *const version =
32 DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n";
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
34#include <linux/module.h>
35#include <linux/kernel.h>
Alexey Dobriyand43c36d2009-10-07 17:09:06 +040036#include <linux/sched.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include <linux/string.h>
38#include <linux/errno.h>
39#include <linux/ioport.h>
40#include <linux/slab.h>
41#include <linux/interrupt.h>
42#include <linux/pci.h>
43#include <linux/delay.h>
44#include <linux/init.h>
45#include <linux/ethtool.h>
46#include <linux/mii.h>
47#include <linux/crc32.h>
48#include <linux/netdevice.h>
49#include <linux/etherdevice.h>
Daniel Drake1f044932009-12-24 08:11:24 +000050#include <linux/if_ether.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070051#include <linux/skbuff.h>
52#include <linux/spinlock.h>
53#include <linux/moduleparam.h>
54#include <linux/bitops.h>
Joe Perches9e3f8062010-02-15 08:34:26 +000055#include <linux/io.h>
56#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58#include <asm/dma.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070059#include <asm/irq.h>
60
61/*
62 * PCI device identifiers for "new style" Linux PCI Device Drivers
63 */
Alexey Dobriyana3aa1882010-01-07 11:58:11 +000064static DEFINE_PCI_DEVICE_TABLE(pcnet32_pci_tbl) = {
Don Fryf2622a22006-06-29 13:52:58 -070065 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), },
66 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), },
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050067
68 /*
69 * Adapters that were sold with IBM's RS/6000 or pSeries hardware have
70 * the incorrect vendor id.
71 */
Don Fryf2622a22006-06-29 13:52:58 -070072 { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE),
73 .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, },
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050074
75 { } /* terminate list */
Linus Torvalds1da177e2005-04-16 15:20:36 -070076};
77
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050078MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl);
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80static int cards_found;
81
82/*
83 * VLB I/O addresses
84 */
85static unsigned int pcnet32_portlist[] __initdata =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050086 { 0x300, 0x320, 0x340, 0x360, 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
Joe Perches9e3f8062010-02-15 08:34:26 +000088static int pcnet32_debug;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050089static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */
90static int pcnet32vlb; /* check for VLB cards ? */
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
92static struct net_device *pcnet32_dev;
93
94static int max_interrupt_work = 2;
95static int rx_copybreak = 200;
96
97#define PCNET32_PORT_AUI 0x00
98#define PCNET32_PORT_10BT 0x01
99#define PCNET32_PORT_GPSI 0x02
100#define PCNET32_PORT_MII 0x03
101
102#define PCNET32_PORT_PORTSEL 0x03
103#define PCNET32_PORT_ASEL 0x04
104#define PCNET32_PORT_100 0x40
105#define PCNET32_PORT_FD 0x80
106
107#define PCNET32_DMA_MASK 0xffffffff
108
109#define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ))
110#define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4))
111
112/*
113 * table to translate option values from tulip
114 * to internal options
115 */
Arjan van de Venf71e1302006-03-03 21:33:57 -0500116static const unsigned char options_mapping[] = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500117 PCNET32_PORT_ASEL, /* 0 Auto-select */
118 PCNET32_PORT_AUI, /* 1 BNC/AUI */
119 PCNET32_PORT_AUI, /* 2 AUI/BNC */
120 PCNET32_PORT_ASEL, /* 3 not supported */
121 PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */
122 PCNET32_PORT_ASEL, /* 5 not supported */
123 PCNET32_PORT_ASEL, /* 6 not supported */
124 PCNET32_PORT_ASEL, /* 7 not supported */
125 PCNET32_PORT_ASEL, /* 8 not supported */
126 PCNET32_PORT_MII, /* 9 MII 10baseT */
127 PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */
128 PCNET32_PORT_MII, /* 11 MII (autosel) */
129 PCNET32_PORT_10BT, /* 12 10BaseT */
130 PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */
131 /* 14 MII 100BaseTx-FD */
132 PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD,
133 PCNET32_PORT_ASEL /* 15 not supported */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134};
135
136static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500137 "Loopback test (offline)"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138};
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500139
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200140#define PCNET32_TEST_LEN ARRAY_SIZE(pcnet32_gstrings_test)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
Don Fryac62ef02006-03-20 15:26:03 -0800142#define PCNET32_NUM_REGS 136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500144#define MAX_UNITS 8 /* More are supported, limit only on options */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145static int options[MAX_UNITS];
146static int full_duplex[MAX_UNITS];
147static int homepna[MAX_UNITS];
148
149/*
150 * Theory of Operation
151 *
152 * This driver uses the same software structure as the normal lance
153 * driver. So look for a verbose description in lance.c. The differences
154 * to the normal lance driver is the use of the 32bit mode of PCnet32
155 * and PCnetPCI chips. Because these chips are 32bit chips, there is no
156 * 16MB limitation and we don't need bounce buffers.
157 */
158
159/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 * Set the number of Tx and Rx buffers, using Log_2(# buffers).
161 * Reasonable default values are 4 Tx buffers, and 16 Rx buffers.
162 * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4).
163 */
164#ifndef PCNET32_LOG_TX_BUFFERS
Hubert WS Lineabf0412005-09-14 11:39:25 -0700165#define PCNET32_LOG_TX_BUFFERS 4
166#define PCNET32_LOG_RX_BUFFERS 5
167#define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */
168#define PCNET32_LOG_MAX_RX_BUFFERS 9
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169#endif
170
171#define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS))
Hubert WS Lineabf0412005-09-14 11:39:25 -0700172#define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174#define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS))
Hubert WS Lineabf0412005-09-14 11:39:25 -0700175#define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
Don Fry232c5642008-02-08 07:32:26 -0800177#define PKT_BUF_SKB 1544
178/* actual buffer length after being aligned */
179#define PKT_BUF_SIZE (PKT_BUF_SKB - NET_IP_ALIGN)
180/* chip wants twos complement of the (aligned) buffer length */
181#define NEG_BUF_SIZE (NET_IP_ALIGN - PKT_BUF_SKB)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183/* Offsets from base I/O address. */
184#define PCNET32_WIO_RDP 0x10
185#define PCNET32_WIO_RAP 0x12
186#define PCNET32_WIO_RESET 0x14
187#define PCNET32_WIO_BDP 0x16
188
189#define PCNET32_DWIO_RDP 0x10
190#define PCNET32_DWIO_RAP 0x14
191#define PCNET32_DWIO_RESET 0x18
192#define PCNET32_DWIO_BDP 0x1C
193
194#define PCNET32_TOTAL_SIZE 0x20
195
Don Fry06c87852006-06-29 13:54:38 -0700196#define CSR0 0
197#define CSR0_INIT 0x1
198#define CSR0_START 0x2
199#define CSR0_STOP 0x4
200#define CSR0_TXPOLL 0x8
201#define CSR0_INTEN 0x40
202#define CSR0_IDON 0x0100
203#define CSR0_NORMAL (CSR0_START | CSR0_INTEN)
204#define PCNET32_INIT_LOW 1
205#define PCNET32_INIT_HIGH 2
206#define CSR3 3
207#define CSR4 4
208#define CSR5 5
209#define CSR5_SUSPEND 0x0001
210#define CSR15 15
211#define PCNET32_MC_FILTER 8
212
Don Fry8d916262006-08-22 10:22:37 -0700213#define PCNET32_79C970A 0x2621
214
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215/* The PCNET32 Rx and Tx ring descriptors. */
216struct pcnet32_rx_head {
Al Viro3e335452007-08-23 00:45:46 -0400217 __le32 base;
218 __le16 buf_length; /* two`s complement of length */
219 __le16 status;
220 __le32 msg_length;
221 __le32 reserved;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222};
223
224struct pcnet32_tx_head {
Al Viro3e335452007-08-23 00:45:46 -0400225 __le32 base;
226 __le16 length; /* two`s complement of length */
227 __le16 status;
228 __le32 misc;
229 __le32 reserved;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230};
231
232/* The PCNET32 32-Bit initialization block, described in databook. */
233struct pcnet32_init_block {
Al Viro3e335452007-08-23 00:45:46 -0400234 __le16 mode;
235 __le16 tlen_rlen;
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500236 u8 phys_addr[6];
Al Viro3e335452007-08-23 00:45:46 -0400237 __le16 reserved;
238 __le32 filter[2];
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500239 /* Receive and transmit ring base, along with extra bits. */
Al Viro3e335452007-08-23 00:45:46 -0400240 __le32 rx_ring;
241 __le32 tx_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242};
243
244/* PCnet32 access functions */
245struct pcnet32_access {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500246 u16 (*read_csr) (unsigned long, int);
247 void (*write_csr) (unsigned long, int, u16);
248 u16 (*read_bcr) (unsigned long, int);
249 void (*write_bcr) (unsigned long, int, u16);
250 u16 (*read_rap) (unsigned long);
251 void (*write_rap) (unsigned long, u16);
252 void (*reset) (unsigned long);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253};
254
255/*
Hubert WS Lin76209922005-09-14 11:39:27 -0700256 * The first field of pcnet32_private is read by the ethernet device
257 * so the structure should be allocated using pci_alloc_consistent().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 */
259struct pcnet32_private {
Don Fry6ecb7662007-03-06 10:45:23 -0800260 struct pcnet32_init_block *init_block;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500261 /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500262 struct pcnet32_rx_head *rx_ring;
263 struct pcnet32_tx_head *tx_ring;
Don Fry6ecb7662007-03-06 10:45:23 -0800264 dma_addr_t init_dma_addr;/* DMA address of beginning of the init block,
265 returned by pci_alloc_consistent */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500266 struct pci_dev *pci_dev;
267 const char *name;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500268 /* The saved address of a sent-in-place packet/buffer, for skfree(). */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500269 struct sk_buff **tx_skbuff;
270 struct sk_buff **rx_skbuff;
271 dma_addr_t *tx_dma_addr;
272 dma_addr_t *rx_dma_addr;
273 struct pcnet32_access a;
274 spinlock_t lock; /* Guard lock */
275 unsigned int cur_rx, cur_tx; /* The next free ring entry */
276 unsigned int rx_ring_size; /* current rx ring size */
277 unsigned int tx_ring_size; /* current tx ring size */
278 unsigned int rx_mod_mask; /* rx ring modular mask */
279 unsigned int tx_mod_mask; /* tx ring modular mask */
280 unsigned short rx_len_bits;
281 unsigned short tx_len_bits;
282 dma_addr_t rx_ring_dma_addr;
283 dma_addr_t tx_ring_dma_addr;
284 unsigned int dirty_rx, /* ring entries to be freed. */
285 dirty_tx;
286
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700287 struct net_device *dev;
288 struct napi_struct napi;
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500289 char tx_full;
290 char phycount; /* number of phys found */
291 int options;
292 unsigned int shared_irq:1, /* shared irq possible */
293 dxsuflo:1, /* disable transmit stop on uflo */
294 mii:1; /* mii port available */
295 struct net_device *next;
296 struct mii_if_info mii_if;
297 struct timer_list watchdog_timer;
298 struct timer_list blink_timer;
299 u32 msg_enable; /* debug message level */
Don Fryac62ef02006-03-20 15:26:03 -0800300
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500301 /* each bit indicates an available PHY */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500302 u32 phymask;
Don Fry8d916262006-08-22 10:22:37 -0700303 unsigned short chip_version; /* which variant this is */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304};
305
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500306static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *);
307static int pcnet32_probe1(unsigned long, int, struct pci_dev *);
308static int pcnet32_open(struct net_device *);
309static int pcnet32_init_ring(struct net_device *);
Stephen Hemminger613573252009-08-31 19:50:58 +0000310static netdev_tx_t pcnet32_start_xmit(struct sk_buff *,
311 struct net_device *);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500312static void pcnet32_tx_timeout(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100313static irqreturn_t pcnet32_interrupt(int, void *);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500314static int pcnet32_close(struct net_device *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315static struct net_device_stats *pcnet32_get_stats(struct net_device *);
316static void pcnet32_load_multicast(struct net_device *dev);
317static void pcnet32_set_multicast_list(struct net_device *);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500318static int pcnet32_ioctl(struct net_device *, struct ifreq *, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319static void pcnet32_watchdog(struct net_device *);
320static int mdio_read(struct net_device *dev, int phy_id, int reg_num);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500321static void mdio_write(struct net_device *dev, int phy_id, int reg_num,
322 int val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits);
324static void pcnet32_ethtool_test(struct net_device *dev,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500325 struct ethtool_test *eth_test, u64 * data);
326static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327static int pcnet32_phys_id(struct net_device *dev, u32 data);
328static void pcnet32_led_blink_callback(struct net_device *dev);
329static int pcnet32_get_regs_len(struct net_device *dev);
330static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500331 void *ptr);
Don Fry1bcd3152005-04-29 14:51:17 -0700332static void pcnet32_purge_tx_ring(struct net_device *dev);
Andrew Mortonb166cfb2008-05-14 16:20:14 -0700333static int pcnet32_alloc_ring(struct net_device *dev, const char *name);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700334static void pcnet32_free_ring(struct net_device *dev);
Don Fryac62ef02006-03-20 15:26:03 -0800335static void pcnet32_check_media(struct net_device *dev, int verbose);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700336
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500337static u16 pcnet32_wio_read_csr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500339 outw(index, addr + PCNET32_WIO_RAP);
340 return inw(addr + PCNET32_WIO_RDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341}
342
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500343static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500345 outw(index, addr + PCNET32_WIO_RAP);
346 outw(val, addr + PCNET32_WIO_RDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347}
348
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500349static u16 pcnet32_wio_read_bcr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500351 outw(index, addr + PCNET32_WIO_RAP);
352 return inw(addr + PCNET32_WIO_BDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353}
354
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500355static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500357 outw(index, addr + PCNET32_WIO_RAP);
358 outw(val, addr + PCNET32_WIO_BDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359}
360
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500361static u16 pcnet32_wio_read_rap(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500363 return inw(addr + PCNET32_WIO_RAP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364}
365
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500366static void pcnet32_wio_write_rap(unsigned long addr, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500368 outw(val, addr + PCNET32_WIO_RAP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369}
370
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500371static void pcnet32_wio_reset(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500373 inw(addr + PCNET32_WIO_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374}
375
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500376static int pcnet32_wio_check(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500378 outw(88, addr + PCNET32_WIO_RAP);
379 return (inw(addr + PCNET32_WIO_RAP) == 88);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380}
381
382static struct pcnet32_access pcnet32_wio = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500383 .read_csr = pcnet32_wio_read_csr,
384 .write_csr = pcnet32_wio_write_csr,
385 .read_bcr = pcnet32_wio_read_bcr,
386 .write_bcr = pcnet32_wio_write_bcr,
387 .read_rap = pcnet32_wio_read_rap,
388 .write_rap = pcnet32_wio_write_rap,
389 .reset = pcnet32_wio_reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390};
391
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500392static u16 pcnet32_dwio_read_csr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500394 outl(index, addr + PCNET32_DWIO_RAP);
Joe Perches9e3f8062010-02-15 08:34:26 +0000395 return inl(addr + PCNET32_DWIO_RDP) & 0xffff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396}
397
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500398static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500400 outl(index, addr + PCNET32_DWIO_RAP);
401 outl(val, addr + PCNET32_DWIO_RDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402}
403
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500404static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500406 outl(index, addr + PCNET32_DWIO_RAP);
Joe Perches9e3f8062010-02-15 08:34:26 +0000407 return inl(addr + PCNET32_DWIO_BDP) & 0xffff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408}
409
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500410static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500412 outl(index, addr + PCNET32_DWIO_RAP);
413 outl(val, addr + PCNET32_DWIO_BDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414}
415
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500416static u16 pcnet32_dwio_read_rap(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417{
Joe Perches9e3f8062010-02-15 08:34:26 +0000418 return inl(addr + PCNET32_DWIO_RAP) & 0xffff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419}
420
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500421static void pcnet32_dwio_write_rap(unsigned long addr, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500423 outl(val, addr + PCNET32_DWIO_RAP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424}
425
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500426static void pcnet32_dwio_reset(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500428 inl(addr + PCNET32_DWIO_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429}
430
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500431static int pcnet32_dwio_check(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500433 outl(88, addr + PCNET32_DWIO_RAP);
434 return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435}
436
437static struct pcnet32_access pcnet32_dwio = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500438 .read_csr = pcnet32_dwio_read_csr,
439 .write_csr = pcnet32_dwio_write_csr,
440 .read_bcr = pcnet32_dwio_read_bcr,
441 .write_bcr = pcnet32_dwio_write_bcr,
442 .read_rap = pcnet32_dwio_read_rap,
443 .write_rap = pcnet32_dwio_write_rap,
444 .reset = pcnet32_dwio_reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445};
446
Don Fry06c87852006-06-29 13:54:38 -0700447static void pcnet32_netif_stop(struct net_device *dev)
448{
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700449 struct pcnet32_private *lp = netdev_priv(dev);
Don Fry01935d72008-04-29 13:49:58 -0700450
Don Fry06c87852006-06-29 13:54:38 -0700451 dev->trans_start = jiffies;
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700452 napi_disable(&lp->napi);
Don Fry06c87852006-06-29 13:54:38 -0700453 netif_tx_disable(dev);
454}
455
456static void pcnet32_netif_start(struct net_device *dev)
457{
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700458 struct pcnet32_private *lp = netdev_priv(dev);
David S. Millerd1d08d12008-01-07 20:53:33 -0800459 ulong ioaddr = dev->base_addr;
460 u16 val;
Don Fry01935d72008-04-29 13:49:58 -0700461
Don Fry06c87852006-06-29 13:54:38 -0700462 netif_wake_queue(dev);
David S. Millerd1d08d12008-01-07 20:53:33 -0800463 val = lp->a.read_csr(ioaddr, CSR3);
464 val &= 0x00ff;
465 lp->a.write_csr(ioaddr, CSR3, val);
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700466 napi_enable(&lp->napi);
Don Fry06c87852006-06-29 13:54:38 -0700467}
468
469/*
470 * Allocate space for the new sized tx ring.
471 * Free old resources
472 * Save new resources.
473 * Any failure keeps old resources.
474 * Must be called with lp->lock held.
475 */
476static void pcnet32_realloc_tx_ring(struct net_device *dev,
477 struct pcnet32_private *lp,
478 unsigned int size)
479{
480 dma_addr_t new_ring_dma_addr;
481 dma_addr_t *new_dma_addr_list;
482 struct pcnet32_tx_head *new_tx_ring;
483 struct sk_buff **new_skb_list;
484
485 pcnet32_purge_tx_ring(dev);
486
487 new_tx_ring = pci_alloc_consistent(lp->pci_dev,
488 sizeof(struct pcnet32_tx_head) *
489 (1 << size),
490 &new_ring_dma_addr);
491 if (new_tx_ring == NULL) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000492 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
Don Fry06c87852006-06-29 13:54:38 -0700493 return;
494 }
495 memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
496
497 new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
498 GFP_ATOMIC);
499 if (!new_dma_addr_list) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000500 netif_err(lp, drv, dev, "Memory allocation failed\n");
Don Fry06c87852006-06-29 13:54:38 -0700501 goto free_new_tx_ring;
502 }
503
504 new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
505 GFP_ATOMIC);
506 if (!new_skb_list) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000507 netif_err(lp, drv, dev, "Memory allocation failed\n");
Don Fry06c87852006-06-29 13:54:38 -0700508 goto free_new_lists;
509 }
510
511 kfree(lp->tx_skbuff);
512 kfree(lp->tx_dma_addr);
513 pci_free_consistent(lp->pci_dev,
514 sizeof(struct pcnet32_tx_head) *
515 lp->tx_ring_size, lp->tx_ring,
516 lp->tx_ring_dma_addr);
517
518 lp->tx_ring_size = (1 << size);
519 lp->tx_mod_mask = lp->tx_ring_size - 1;
520 lp->tx_len_bits = (size << 12);
521 lp->tx_ring = new_tx_ring;
522 lp->tx_ring_dma_addr = new_ring_dma_addr;
523 lp->tx_dma_addr = new_dma_addr_list;
524 lp->tx_skbuff = new_skb_list;
525 return;
526
Joe Perches9e3f8062010-02-15 08:34:26 +0000527free_new_lists:
Don Fry06c87852006-06-29 13:54:38 -0700528 kfree(new_dma_addr_list);
Joe Perches9e3f8062010-02-15 08:34:26 +0000529free_new_tx_ring:
Don Fry06c87852006-06-29 13:54:38 -0700530 pci_free_consistent(lp->pci_dev,
531 sizeof(struct pcnet32_tx_head) *
532 (1 << size),
533 new_tx_ring,
534 new_ring_dma_addr);
Don Fry06c87852006-06-29 13:54:38 -0700535}
536
537/*
538 * Allocate space for the new sized rx ring.
539 * Re-use old receive buffers.
540 * alloc extra buffers
541 * free unneeded buffers
542 * free unneeded buffers
543 * Save new resources.
544 * Any failure keeps old resources.
545 * Must be called with lp->lock held.
546 */
547static void pcnet32_realloc_rx_ring(struct net_device *dev,
548 struct pcnet32_private *lp,
549 unsigned int size)
550{
551 dma_addr_t new_ring_dma_addr;
552 dma_addr_t *new_dma_addr_list;
553 struct pcnet32_rx_head *new_rx_ring;
554 struct sk_buff **new_skb_list;
555 int new, overlap;
556
557 new_rx_ring = pci_alloc_consistent(lp->pci_dev,
558 sizeof(struct pcnet32_rx_head) *
559 (1 << size),
560 &new_ring_dma_addr);
561 if (new_rx_ring == NULL) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000562 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
Don Fry06c87852006-06-29 13:54:38 -0700563 return;
564 }
565 memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size));
566
567 new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
568 GFP_ATOMIC);
569 if (!new_dma_addr_list) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000570 netif_err(lp, drv, dev, "Memory allocation failed\n");
Don Fry06c87852006-06-29 13:54:38 -0700571 goto free_new_rx_ring;
572 }
573
574 new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
575 GFP_ATOMIC);
576 if (!new_skb_list) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000577 netif_err(lp, drv, dev, "Memory allocation failed\n");
Don Fry06c87852006-06-29 13:54:38 -0700578 goto free_new_lists;
579 }
580
581 /* first copy the current receive buffers */
582 overlap = min(size, lp->rx_ring_size);
583 for (new = 0; new < overlap; new++) {
584 new_rx_ring[new] = lp->rx_ring[new];
585 new_dma_addr_list[new] = lp->rx_dma_addr[new];
586 new_skb_list[new] = lp->rx_skbuff[new];
587 }
588 /* now allocate any new buffers needed */
Joe Perches9e3f8062010-02-15 08:34:26 +0000589 for (; new < size; new++) {
Don Fry06c87852006-06-29 13:54:38 -0700590 struct sk_buff *rx_skbuff;
Don Fry232c5642008-02-08 07:32:26 -0800591 new_skb_list[new] = dev_alloc_skb(PKT_BUF_SKB);
Joe Perches9e3f8062010-02-15 08:34:26 +0000592 rx_skbuff = new_skb_list[new];
593 if (!rx_skbuff) {
Don Fry06c87852006-06-29 13:54:38 -0700594 /* keep the original lists and buffers */
Joe Perches13ff83b2010-02-15 08:34:25 +0000595 netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n",
596 __func__);
Don Fry06c87852006-06-29 13:54:38 -0700597 goto free_all_new;
598 }
Don Fry232c5642008-02-08 07:32:26 -0800599 skb_reserve(rx_skbuff, NET_IP_ALIGN);
Don Fry06c87852006-06-29 13:54:38 -0700600
601 new_dma_addr_list[new] =
602 pci_map_single(lp->pci_dev, rx_skbuff->data,
Don Fry232c5642008-02-08 07:32:26 -0800603 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
Al Viro3e335452007-08-23 00:45:46 -0400604 new_rx_ring[new].base = cpu_to_le32(new_dma_addr_list[new]);
Don Fry232c5642008-02-08 07:32:26 -0800605 new_rx_ring[new].buf_length = cpu_to_le16(NEG_BUF_SIZE);
Al Viro3e335452007-08-23 00:45:46 -0400606 new_rx_ring[new].status = cpu_to_le16(0x8000);
Don Fry06c87852006-06-29 13:54:38 -0700607 }
608 /* and free any unneeded buffers */
609 for (; new < lp->rx_ring_size; new++) {
610 if (lp->rx_skbuff[new]) {
611 pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new],
Don Fry232c5642008-02-08 07:32:26 -0800612 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
Don Fry06c87852006-06-29 13:54:38 -0700613 dev_kfree_skb(lp->rx_skbuff[new]);
614 }
615 }
616
617 kfree(lp->rx_skbuff);
618 kfree(lp->rx_dma_addr);
619 pci_free_consistent(lp->pci_dev,
620 sizeof(struct pcnet32_rx_head) *
621 lp->rx_ring_size, lp->rx_ring,
622 lp->rx_ring_dma_addr);
623
624 lp->rx_ring_size = (1 << size);
625 lp->rx_mod_mask = lp->rx_ring_size - 1;
626 lp->rx_len_bits = (size << 4);
627 lp->rx_ring = new_rx_ring;
628 lp->rx_ring_dma_addr = new_ring_dma_addr;
629 lp->rx_dma_addr = new_dma_addr_list;
630 lp->rx_skbuff = new_skb_list;
631 return;
632
Joe Perches9e3f8062010-02-15 08:34:26 +0000633free_all_new:
634 while (--new >= lp->rx_ring_size) {
Don Fry06c87852006-06-29 13:54:38 -0700635 if (new_skb_list[new]) {
636 pci_unmap_single(lp->pci_dev, new_dma_addr_list[new],
Don Fry232c5642008-02-08 07:32:26 -0800637 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
Don Fry06c87852006-06-29 13:54:38 -0700638 dev_kfree_skb(new_skb_list[new]);
639 }
640 }
641 kfree(new_skb_list);
Joe Perches9e3f8062010-02-15 08:34:26 +0000642free_new_lists:
Don Fry06c87852006-06-29 13:54:38 -0700643 kfree(new_dma_addr_list);
Joe Perches9e3f8062010-02-15 08:34:26 +0000644free_new_rx_ring:
Don Fry06c87852006-06-29 13:54:38 -0700645 pci_free_consistent(lp->pci_dev,
646 sizeof(struct pcnet32_rx_head) *
647 (1 << size),
648 new_rx_ring,
649 new_ring_dma_addr);
650 return;
651}
652
Don Fryac5bfe42006-06-29 13:55:27 -0700653static void pcnet32_purge_rx_ring(struct net_device *dev)
654{
Don Fry1e56a4b2007-03-06 10:55:00 -0800655 struct pcnet32_private *lp = netdev_priv(dev);
Don Fryac5bfe42006-06-29 13:55:27 -0700656 int i;
657
658 /* free all allocated skbuffs */
659 for (i = 0; i < lp->rx_ring_size; i++) {
660 lp->rx_ring[i].status = 0; /* CPU owns buffer */
661 wmb(); /* Make sure adapter sees owner change */
662 if (lp->rx_skbuff[i]) {
663 pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i],
Don Fry232c5642008-02-08 07:32:26 -0800664 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
Don Fryac5bfe42006-06-29 13:55:27 -0700665 dev_kfree_skb_any(lp->rx_skbuff[i]);
666 }
667 lp->rx_skbuff[i] = NULL;
668 lp->rx_dma_addr[i] = 0;
669 }
670}
671
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672#ifdef CONFIG_NET_POLL_CONTROLLER
673static void pcnet32_poll_controller(struct net_device *dev)
674{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500675 disable_irq(dev->irq);
David Howells7d12e782006-10-05 14:55:46 +0100676 pcnet32_interrupt(0, dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500677 enable_irq(dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678}
679#endif
680
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
682{
Don Fry1e56a4b2007-03-06 10:55:00 -0800683 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500684 unsigned long flags;
685 int r = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500687 if (lp->mii) {
688 spin_lock_irqsave(&lp->lock, flags);
689 mii_ethtool_gset(&lp->mii_if, cmd);
690 spin_unlock_irqrestore(&lp->lock, flags);
691 r = 0;
692 }
693 return r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694}
695
696static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
697{
Don Fry1e56a4b2007-03-06 10:55:00 -0800698 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500699 unsigned long flags;
700 int r = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500702 if (lp->mii) {
703 spin_lock_irqsave(&lp->lock, flags);
704 r = mii_ethtool_sset(&lp->mii_if, cmd);
705 spin_unlock_irqrestore(&lp->lock, flags);
706 }
707 return r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708}
709
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500710static void pcnet32_get_drvinfo(struct net_device *dev,
711 struct ethtool_drvinfo *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712{
Don Fry1e56a4b2007-03-06 10:55:00 -0800713 struct pcnet32_private *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500715 strcpy(info->driver, DRV_NAME);
716 strcpy(info->version, DRV_VERSION);
717 if (lp->pci_dev)
718 strcpy(info->bus_info, pci_name(lp->pci_dev));
719 else
720 sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721}
722
723static u32 pcnet32_get_link(struct net_device *dev)
724{
Don Fry1e56a4b2007-03-06 10:55:00 -0800725 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500726 unsigned long flags;
727 int r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500729 spin_lock_irqsave(&lp->lock, flags);
730 if (lp->mii) {
731 r = mii_link_ok(&lp->mii_if);
Don Fry8d916262006-08-22 10:22:37 -0700732 } else if (lp->chip_version >= PCNET32_79C970A) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500733 ulong ioaddr = dev->base_addr; /* card base I/O address */
734 r = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
Don Fry8d916262006-08-22 10:22:37 -0700735 } else { /* can not detect link on really old chips */
736 r = 1;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500737 }
738 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500740 return r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741}
742
743static u32 pcnet32_get_msglevel(struct net_device *dev)
744{
Don Fry1e56a4b2007-03-06 10:55:00 -0800745 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500746 return lp->msg_enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747}
748
749static void pcnet32_set_msglevel(struct net_device *dev, u32 value)
750{
Don Fry1e56a4b2007-03-06 10:55:00 -0800751 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500752 lp->msg_enable = value;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753}
754
755static int pcnet32_nway_reset(struct net_device *dev)
756{
Don Fry1e56a4b2007-03-06 10:55:00 -0800757 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500758 unsigned long flags;
759 int r = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500761 if (lp->mii) {
762 spin_lock_irqsave(&lp->lock, flags);
763 r = mii_nway_restart(&lp->mii_if);
764 spin_unlock_irqrestore(&lp->lock, flags);
765 }
766 return r;
767}
768
769static void pcnet32_get_ringparam(struct net_device *dev,
770 struct ethtool_ringparam *ering)
771{
Don Fry1e56a4b2007-03-06 10:55:00 -0800772 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500773
Don Fry6dcd60c2006-06-29 13:53:23 -0700774 ering->tx_max_pending = TX_MAX_RING_SIZE;
775 ering->tx_pending = lp->tx_ring_size;
776 ering->rx_max_pending = RX_MAX_RING_SIZE;
777 ering->rx_pending = lp->rx_ring_size;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500778}
779
780static int pcnet32_set_ringparam(struct net_device *dev,
781 struct ethtool_ringparam *ering)
782{
Don Fry1e56a4b2007-03-06 10:55:00 -0800783 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500784 unsigned long flags;
Don Fry06c87852006-06-29 13:54:38 -0700785 unsigned int size;
786 ulong ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500787 int i;
788
789 if (ering->rx_mini_pending || ering->rx_jumbo_pending)
790 return -EINVAL;
791
792 if (netif_running(dev))
Don Fry06c87852006-06-29 13:54:38 -0700793 pcnet32_netif_stop(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500794
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795 spin_lock_irqsave(&lp->lock, flags);
Don Fry06c87852006-06-29 13:54:38 -0700796 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
797
798 size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500799
800 /* set the minimum ring size to 4, to allow the loopback test to work
801 * unchanged.
802 */
803 for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) {
Don Fry06c87852006-06-29 13:54:38 -0700804 if (size <= (1 << i))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500805 break;
806 }
Don Fry06c87852006-06-29 13:54:38 -0700807 if ((1 << i) != lp->tx_ring_size)
808 pcnet32_realloc_tx_ring(dev, lp, i);
Don Fryb368a3f2006-09-13 10:16:07 -0700809
Don Fry06c87852006-06-29 13:54:38 -0700810 size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500811 for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) {
Don Fry06c87852006-06-29 13:54:38 -0700812 if (size <= (1 << i))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500813 break;
814 }
Don Fry06c87852006-06-29 13:54:38 -0700815 if ((1 << i) != lp->rx_ring_size)
816 pcnet32_realloc_rx_ring(dev, lp, i);
Don Fryb368a3f2006-09-13 10:16:07 -0700817
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700818 lp->napi.weight = lp->rx_ring_size / 2;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500819
Don Fry06c87852006-06-29 13:54:38 -0700820 if (netif_running(dev)) {
821 pcnet32_netif_start(dev);
822 pcnet32_restart(dev, CSR0_NORMAL);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500823 }
824
Don Frya88c8442005-11-01 12:04:33 -0800825 spin_unlock_irqrestore(&lp->lock, flags);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700826
Joe Perches13ff83b2010-02-15 08:34:25 +0000827 netif_info(lp, drv, dev, "Ring Param Settings: RX: %d, TX: %d\n",
828 lp->rx_ring_size, lp->tx_ring_size);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700829
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500830 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700831}
832
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500833static void pcnet32_get_strings(struct net_device *dev, u32 stringset,
Joe Perches9e3f8062010-02-15 08:34:26 +0000834 u8 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500836 memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837}
838
Jeff Garzikb9f2c042007-10-03 18:07:32 -0700839static int pcnet32_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840{
Jeff Garzikb9f2c042007-10-03 18:07:32 -0700841 switch (sset) {
842 case ETH_SS_TEST:
843 return PCNET32_TEST_LEN;
844 default:
845 return -EOPNOTSUPP;
846 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847}
848
849static void pcnet32_ethtool_test(struct net_device *dev,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500850 struct ethtool_test *test, u64 * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851{
Don Fry1e56a4b2007-03-06 10:55:00 -0800852 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500853 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500855 if (test->flags == ETH_TEST_FL_OFFLINE) {
856 rc = pcnet32_loopback_test(dev, data);
857 if (rc) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000858 netif_printk(lp, hw, KERN_DEBUG, dev,
859 "Loopback test failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500860 test->flags |= ETH_TEST_FL_FAILED;
Joe Perches13ff83b2010-02-15 08:34:25 +0000861 } else
862 netif_printk(lp, hw, KERN_DEBUG, dev,
863 "Loopback test passed\n");
864 } else
865 netif_printk(lp, hw, KERN_DEBUG, dev,
866 "No tests to run (specify 'Offline' on ethtool)\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500867} /* end pcnet32_ethtool_test */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500869static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870{
Don Fry1e56a4b2007-03-06 10:55:00 -0800871 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500872 struct pcnet32_access *a = &lp->a; /* access to registers */
873 ulong ioaddr = dev->base_addr; /* card base I/O address */
874 struct sk_buff *skb; /* sk buff */
875 int x, i; /* counters */
876 int numbuffs = 4; /* number of TX/RX buffers and descs */
877 u16 status = 0x8300; /* TX ring status */
Al Viro3e335452007-08-23 00:45:46 -0400878 __le16 teststatus; /* test of ring status */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500879 int rc; /* return code */
880 int size; /* size of packets */
881 unsigned char *packet; /* source packet data */
882 static const int data_len = 60; /* length of source packets */
883 unsigned long flags;
884 unsigned long ticks;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500886 rc = 1; /* default to fail */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500888 if (netif_running(dev))
Don Fry7de745e2006-09-13 10:16:53 -0700889 pcnet32_netif_stop(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500891 spin_lock_irqsave(&lp->lock, flags);
Don Fryac5bfe42006-06-29 13:55:27 -0700892 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
893
894 numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500896 /* Reset the PCNET32 */
897 lp->a.reset(ioaddr);
Don Fryb368a3f2006-09-13 10:16:07 -0700898 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500900 /* switch pcnet32 to 32bit mode */
901 lp->a.write_bcr(ioaddr, 20, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500903 /* purge & init rings but don't actually restart */
904 pcnet32_restart(dev, 0x0000);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Don Fryac5bfe42006-06-29 13:55:27 -0700906 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500908 /* Initialize Transmit buffers. */
909 size = data_len + 15;
910 for (x = 0; x < numbuffs; x++) {
Joe Perches9e3f8062010-02-15 08:34:26 +0000911 skb = dev_alloc_skb(size);
912 if (!skb) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000913 netif_printk(lp, hw, KERN_DEBUG, dev,
914 "Cannot allocate skb at line: %d!\n",
915 __LINE__);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500916 goto clean_up;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500917 }
Joe Perches9e3f8062010-02-15 08:34:26 +0000918 packet = skb->data;
919 skb_put(skb, size); /* create space for data */
920 lp->tx_skbuff[x] = skb;
921 lp->tx_ring[x].length = cpu_to_le16(-skb->len);
922 lp->tx_ring[x].misc = 0;
923
924 /* put DA and SA into the skb */
925 for (i = 0; i < 6; i++)
926 *packet++ = dev->dev_addr[i];
927 for (i = 0; i < 6; i++)
928 *packet++ = dev->dev_addr[i];
929 /* type */
930 *packet++ = 0x08;
931 *packet++ = 0x06;
932 /* packet number */
933 *packet++ = x;
934 /* fill packet with data */
935 for (i = 0; i < data_len; i++)
936 *packet++ = i;
937
938 lp->tx_dma_addr[x] =
939 pci_map_single(lp->pci_dev, skb->data, skb->len,
940 PCI_DMA_TODEVICE);
941 lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]);
942 wmb(); /* Make sure owner changes after all others are visible */
943 lp->tx_ring[x].status = cpu_to_le16(status);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500944 }
945
Don Fryac5bfe42006-06-29 13:55:27 -0700946 x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */
947 a->write_bcr(ioaddr, 32, x | 0x0002);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500948
Don Fryac5bfe42006-06-29 13:55:27 -0700949 /* set int loopback in CSR15 */
950 x = a->read_csr(ioaddr, CSR15) & 0xfffc;
951 lp->a.write_csr(ioaddr, CSR15, x | 0x0044);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500952
Al Viro3e335452007-08-23 00:45:46 -0400953 teststatus = cpu_to_le16(0x8000);
Don Fryac5bfe42006-06-29 13:55:27 -0700954 lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500955
956 /* Check status of descriptors */
957 for (x = 0; x < numbuffs; x++) {
958 ticks = 0;
959 rmb();
960 while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) {
961 spin_unlock_irqrestore(&lp->lock, flags);
Don Fryac5bfe42006-06-29 13:55:27 -0700962 msleep(1);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500963 spin_lock_irqsave(&lp->lock, flags);
964 rmb();
965 ticks++;
966 }
967 if (ticks == 200) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000968 netif_err(lp, hw, dev, "Desc %d failed to reset!\n", x);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500969 break;
970 }
971 }
972
Don Fryac5bfe42006-06-29 13:55:27 -0700973 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500974 wmb();
975 if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000976 netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500977
978 for (x = 0; x < numbuffs; x++) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000979 netdev_printk(KERN_DEBUG, dev, "Packet %d: ", x);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500980 skb = lp->rx_skbuff[x];
Joe Perches9e3f8062010-02-15 08:34:26 +0000981 for (i = 0; i < size; i++)
Joe Perches13ff83b2010-02-15 08:34:25 +0000982 pr_cont(" %02x", *(skb->data + i));
Joe Perches13ff83b2010-02-15 08:34:25 +0000983 pr_cont("\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500984 }
985 }
986
987 x = 0;
988 rc = 0;
989 while (x < numbuffs && !rc) {
990 skb = lp->rx_skbuff[x];
991 packet = lp->tx_skbuff[x]->data;
992 for (i = 0; i < size; i++) {
993 if (*(skb->data + i) != packet[i]) {
Joe Perches13ff83b2010-02-15 08:34:25 +0000994 netif_printk(lp, hw, KERN_DEBUG, dev,
995 "Error in compare! %2x - %02x %02x\n",
996 i, *(skb->data + i), packet[i]);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500997 rc = 1;
998 break;
999 }
1000 }
1001 x++;
1002 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001003
Joe Perches9e3f8062010-02-15 08:34:26 +00001004clean_up:
Don Fryac5bfe42006-06-29 13:55:27 -07001005 *data1 = rc;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001006 pcnet32_purge_tx_ring(dev);
Don Fryac5bfe42006-06-29 13:55:27 -07001007
1008 x = a->read_csr(ioaddr, CSR15);
1009 a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001010
1011 x = a->read_bcr(ioaddr, 32); /* reset internal loopback */
Don Fryac5bfe42006-06-29 13:55:27 -07001012 a->write_bcr(ioaddr, 32, (x & ~0x0002));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001013
Don Fry7de745e2006-09-13 10:16:53 -07001014 if (netif_running(dev)) {
1015 pcnet32_netif_start(dev);
1016 pcnet32_restart(dev, CSR0_NORMAL);
1017 } else {
1018 pcnet32_purge_rx_ring(dev);
1019 lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */
1020 }
1021 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022
Joe Perches9e3f8062010-02-15 08:34:26 +00001023 return rc;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001024} /* end pcnet32_loopback_test */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
1026static void pcnet32_led_blink_callback(struct net_device *dev)
1027{
Don Fry1e56a4b2007-03-06 10:55:00 -08001028 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001029 struct pcnet32_access *a = &lp->a;
1030 ulong ioaddr = dev->base_addr;
1031 unsigned long flags;
1032 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001034 spin_lock_irqsave(&lp->lock, flags);
Joe Perches9e3f8062010-02-15 08:34:26 +00001035 for (i = 4; i < 8; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001036 a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001037 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001039 mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040}
1041
1042static int pcnet32_phys_id(struct net_device *dev, u32 data)
1043{
Don Fry1e56a4b2007-03-06 10:55:00 -08001044 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001045 struct pcnet32_access *a = &lp->a;
1046 ulong ioaddr = dev->base_addr;
1047 unsigned long flags;
1048 int i, regs[4];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001050 if (!lp->blink_timer.function) {
1051 init_timer(&lp->blink_timer);
1052 lp->blink_timer.function = (void *)pcnet32_led_blink_callback;
1053 lp->blink_timer.data = (unsigned long)dev;
1054 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001056 /* Save the current value of the bcrs */
1057 spin_lock_irqsave(&lp->lock, flags);
Joe Perches9e3f8062010-02-15 08:34:26 +00001058 for (i = 4; i < 8; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001059 regs[i - 4] = a->read_bcr(ioaddr, i);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001060 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001062 mod_timer(&lp->blink_timer, jiffies);
1063 set_current_state(TASK_INTERRUPTIBLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Al Viro3e335452007-08-23 00:45:46 -04001065 /* AV: the limit here makes no sense whatsoever */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001066 if ((!data) || (data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ)))
1067 data = (u32) (MAX_SCHEDULE_TIMEOUT / HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001069 msleep_interruptible(data * 1000);
1070 del_timer_sync(&lp->blink_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001072 /* Restore the original value of the bcrs */
1073 spin_lock_irqsave(&lp->lock, flags);
Joe Perches9e3f8062010-02-15 08:34:26 +00001074 for (i = 4; i < 8; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001075 a->write_bcr(ioaddr, i, regs[i - 4]);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001076 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001078 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079}
1080
Don Frydf27f4a2006-06-29 13:55:02 -07001081/*
1082 * lp->lock must be held.
1083 */
1084static int pcnet32_suspend(struct net_device *dev, unsigned long *flags,
1085 int can_sleep)
1086{
1087 int csr5;
Don Fry1e56a4b2007-03-06 10:55:00 -08001088 struct pcnet32_private *lp = netdev_priv(dev);
Don Frydf27f4a2006-06-29 13:55:02 -07001089 struct pcnet32_access *a = &lp->a;
1090 ulong ioaddr = dev->base_addr;
1091 int ticks;
1092
Don Fry8d916262006-08-22 10:22:37 -07001093 /* really old chips have to be stopped. */
1094 if (lp->chip_version < PCNET32_79C970A)
1095 return 0;
1096
Don Frydf27f4a2006-06-29 13:55:02 -07001097 /* set SUSPEND (SPND) - CSR5 bit 0 */
1098 csr5 = a->read_csr(ioaddr, CSR5);
1099 a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND);
1100
1101 /* poll waiting for bit to be set */
1102 ticks = 0;
1103 while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) {
1104 spin_unlock_irqrestore(&lp->lock, *flags);
1105 if (can_sleep)
1106 msleep(1);
1107 else
1108 mdelay(1);
1109 spin_lock_irqsave(&lp->lock, *flags);
1110 ticks++;
1111 if (ticks > 200) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001112 netif_printk(lp, hw, KERN_DEBUG, dev,
1113 "Error getting into suspend!\n");
Don Frydf27f4a2006-06-29 13:55:02 -07001114 return 0;
1115 }
1116 }
1117 return 1;
1118}
1119
Don Fry3904c322006-09-13 10:16:38 -07001120/*
1121 * process one receive descriptor entry
1122 */
Don Fry9691edd2006-09-13 10:16:21 -07001123
Don Fry3904c322006-09-13 10:16:38 -07001124static void pcnet32_rx_entry(struct net_device *dev,
1125 struct pcnet32_private *lp,
1126 struct pcnet32_rx_head *rxp,
1127 int entry)
1128{
1129 int status = (short)le16_to_cpu(rxp->status) >> 8;
1130 int rx_in_place = 0;
1131 struct sk_buff *skb;
1132 short pkt_len;
1133
1134 if (status != 0x03) { /* There was an error. */
1135 /*
1136 * There is a tricky error noted by John Murphy,
1137 * <murf@perftech.com> to Russ Nelson: Even with full-sized
1138 * buffers it's possible for a jabber packet to use two
1139 * buffers, with only the last correctly noting the error.
1140 */
1141 if (status & 0x01) /* Only count a general error at the */
Don Fry4f1e5ba2007-10-17 17:06:19 -07001142 dev->stats.rx_errors++; /* end of a packet. */
Don Fry3904c322006-09-13 10:16:38 -07001143 if (status & 0x20)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001144 dev->stats.rx_frame_errors++;
Don Fry3904c322006-09-13 10:16:38 -07001145 if (status & 0x10)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001146 dev->stats.rx_over_errors++;
Don Fry3904c322006-09-13 10:16:38 -07001147 if (status & 0x08)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001148 dev->stats.rx_crc_errors++;
Don Fry3904c322006-09-13 10:16:38 -07001149 if (status & 0x04)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001150 dev->stats.rx_fifo_errors++;
Don Fry3904c322006-09-13 10:16:38 -07001151 return;
1152 }
1153
1154 pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4;
1155
1156 /* Discard oversize frames. */
Don Fry232c5642008-02-08 07:32:26 -08001157 if (unlikely(pkt_len > PKT_BUF_SIZE)) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001158 netif_err(lp, drv, dev, "Impossible packet size %d!\n",
1159 pkt_len);
Don Fry4f1e5ba2007-10-17 17:06:19 -07001160 dev->stats.rx_errors++;
Don Fry3904c322006-09-13 10:16:38 -07001161 return;
1162 }
1163 if (pkt_len < 60) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001164 netif_err(lp, rx_err, dev, "Runt packet!\n");
Don Fry4f1e5ba2007-10-17 17:06:19 -07001165 dev->stats.rx_errors++;
Don Fry3904c322006-09-13 10:16:38 -07001166 return;
1167 }
1168
1169 if (pkt_len > rx_copybreak) {
1170 struct sk_buff *newskb;
1171
Joe Perches9e3f8062010-02-15 08:34:26 +00001172 newskb = dev_alloc_skb(PKT_BUF_SKB);
1173 if (newskb) {
Don Fry232c5642008-02-08 07:32:26 -08001174 skb_reserve(newskb, NET_IP_ALIGN);
Don Fry3904c322006-09-13 10:16:38 -07001175 skb = lp->rx_skbuff[entry];
1176 pci_unmap_single(lp->pci_dev,
1177 lp->rx_dma_addr[entry],
Don Fry232c5642008-02-08 07:32:26 -08001178 PKT_BUF_SIZE,
Don Fry3904c322006-09-13 10:16:38 -07001179 PCI_DMA_FROMDEVICE);
1180 skb_put(skb, pkt_len);
1181 lp->rx_skbuff[entry] = newskb;
Don Fry3904c322006-09-13 10:16:38 -07001182 lp->rx_dma_addr[entry] =
1183 pci_map_single(lp->pci_dev,
1184 newskb->data,
Don Fry232c5642008-02-08 07:32:26 -08001185 PKT_BUF_SIZE,
Don Fry3904c322006-09-13 10:16:38 -07001186 PCI_DMA_FROMDEVICE);
Al Viro3e335452007-08-23 00:45:46 -04001187 rxp->base = cpu_to_le32(lp->rx_dma_addr[entry]);
Don Fry3904c322006-09-13 10:16:38 -07001188 rx_in_place = 1;
1189 } else
1190 skb = NULL;
Joe Perches9e3f8062010-02-15 08:34:26 +00001191 } else
Don Fry232c5642008-02-08 07:32:26 -08001192 skb = dev_alloc_skb(pkt_len + NET_IP_ALIGN);
Don Fry3904c322006-09-13 10:16:38 -07001193
1194 if (skb == NULL) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001195 netif_err(lp, drv, dev, "Memory squeeze, dropping packet\n");
Don Fry4f1e5ba2007-10-17 17:06:19 -07001196 dev->stats.rx_dropped++;
Don Fry3904c322006-09-13 10:16:38 -07001197 return;
1198 }
Don Fry3904c322006-09-13 10:16:38 -07001199 if (!rx_in_place) {
Don Fry232c5642008-02-08 07:32:26 -08001200 skb_reserve(skb, NET_IP_ALIGN);
Don Fry3904c322006-09-13 10:16:38 -07001201 skb_put(skb, pkt_len); /* Make room */
1202 pci_dma_sync_single_for_cpu(lp->pci_dev,
1203 lp->rx_dma_addr[entry],
Don Fryb2cbbd82007-03-05 18:13:09 -08001204 pkt_len,
Don Fry3904c322006-09-13 10:16:38 -07001205 PCI_DMA_FROMDEVICE);
David S. Miller8c7b7fa2007-07-10 22:08:12 -07001206 skb_copy_to_linear_data(skb,
Don Fry3904c322006-09-13 10:16:38 -07001207 (unsigned char *)(lp->rx_skbuff[entry]->data),
David S. Miller8c7b7fa2007-07-10 22:08:12 -07001208 pkt_len);
Don Fry3904c322006-09-13 10:16:38 -07001209 pci_dma_sync_single_for_device(lp->pci_dev,
1210 lp->rx_dma_addr[entry],
Don Fryb2cbbd82007-03-05 18:13:09 -08001211 pkt_len,
Don Fry3904c322006-09-13 10:16:38 -07001212 PCI_DMA_FROMDEVICE);
1213 }
Don Fry4f1e5ba2007-10-17 17:06:19 -07001214 dev->stats.rx_bytes += skb->len;
Don Fry3904c322006-09-13 10:16:38 -07001215 skb->protocol = eth_type_trans(skb, dev);
Don Fry7de745e2006-09-13 10:16:53 -07001216 netif_receive_skb(skb);
Don Fry4f1e5ba2007-10-17 17:06:19 -07001217 dev->stats.rx_packets++;
Don Fry3904c322006-09-13 10:16:38 -07001218 return;
1219}
1220
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001221static int pcnet32_rx(struct net_device *dev, int budget)
Don Fry9691edd2006-09-13 10:16:21 -07001222{
Don Fry1e56a4b2007-03-06 10:55:00 -08001223 struct pcnet32_private *lp = netdev_priv(dev);
Don Fry9691edd2006-09-13 10:16:21 -07001224 int entry = lp->cur_rx & lp->rx_mod_mask;
Don Fry3904c322006-09-13 10:16:38 -07001225 struct pcnet32_rx_head *rxp = &lp->rx_ring[entry];
1226 int npackets = 0;
Don Fry9691edd2006-09-13 10:16:21 -07001227
1228 /* If we own the next entry, it's a new packet. Send it up. */
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001229 while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) {
Don Fry3904c322006-09-13 10:16:38 -07001230 pcnet32_rx_entry(dev, lp, rxp, entry);
1231 npackets += 1;
Don Fry9691edd2006-09-13 10:16:21 -07001232 /*
Don Fry3904c322006-09-13 10:16:38 -07001233 * The docs say that the buffer length isn't touched, but Andrew
1234 * Boyd of QNX reports that some revs of the 79C965 clear it.
Don Fry9691edd2006-09-13 10:16:21 -07001235 */
Don Fry232c5642008-02-08 07:32:26 -08001236 rxp->buf_length = cpu_to_le16(NEG_BUF_SIZE);
Don Fry3904c322006-09-13 10:16:38 -07001237 wmb(); /* Make sure owner changes after others are visible */
Al Viro3e335452007-08-23 00:45:46 -04001238 rxp->status = cpu_to_le16(0x8000);
Don Fry9691edd2006-09-13 10:16:21 -07001239 entry = (++lp->cur_rx) & lp->rx_mod_mask;
Don Fry3904c322006-09-13 10:16:38 -07001240 rxp = &lp->rx_ring[entry];
Don Fry9691edd2006-09-13 10:16:21 -07001241 }
1242
Don Fry7de745e2006-09-13 10:16:53 -07001243 return npackets;
Don Fry9691edd2006-09-13 10:16:21 -07001244}
1245
Don Fry7de745e2006-09-13 10:16:53 -07001246static int pcnet32_tx(struct net_device *dev)
Don Fry9691edd2006-09-13 10:16:21 -07001247{
Don Fry1e56a4b2007-03-06 10:55:00 -08001248 struct pcnet32_private *lp = netdev_priv(dev);
Don Fry9691edd2006-09-13 10:16:21 -07001249 unsigned int dirty_tx = lp->dirty_tx;
1250 int delta;
1251 int must_restart = 0;
1252
1253 while (dirty_tx != lp->cur_tx) {
1254 int entry = dirty_tx & lp->tx_mod_mask;
1255 int status = (short)le16_to_cpu(lp->tx_ring[entry].status);
1256
1257 if (status < 0)
1258 break; /* It still hasn't been Txed */
1259
1260 lp->tx_ring[entry].base = 0;
1261
1262 if (status & 0x4000) {
Don Fry3904c322006-09-13 10:16:38 -07001263 /* There was a major error, log it. */
Don Fry9691edd2006-09-13 10:16:21 -07001264 int err_status = le32_to_cpu(lp->tx_ring[entry].misc);
Don Fry4f1e5ba2007-10-17 17:06:19 -07001265 dev->stats.tx_errors++;
Joe Perches13ff83b2010-02-15 08:34:25 +00001266 netif_err(lp, tx_err, dev,
1267 "Tx error status=%04x err_status=%08x\n",
1268 status, err_status);
Don Fry9691edd2006-09-13 10:16:21 -07001269 if (err_status & 0x04000000)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001270 dev->stats.tx_aborted_errors++;
Don Fry9691edd2006-09-13 10:16:21 -07001271 if (err_status & 0x08000000)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001272 dev->stats.tx_carrier_errors++;
Don Fry9691edd2006-09-13 10:16:21 -07001273 if (err_status & 0x10000000)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001274 dev->stats.tx_window_errors++;
Don Fry9691edd2006-09-13 10:16:21 -07001275#ifndef DO_DXSUFLO
1276 if (err_status & 0x40000000) {
Don Fry4f1e5ba2007-10-17 17:06:19 -07001277 dev->stats.tx_fifo_errors++;
Don Fry9691edd2006-09-13 10:16:21 -07001278 /* Ackk! On FIFO errors the Tx unit is turned off! */
1279 /* Remove this verbosity later! */
Joe Perches13ff83b2010-02-15 08:34:25 +00001280 netif_err(lp, tx_err, dev, "Tx FIFO error!\n");
Don Fry9691edd2006-09-13 10:16:21 -07001281 must_restart = 1;
1282 }
1283#else
1284 if (err_status & 0x40000000) {
Don Fry4f1e5ba2007-10-17 17:06:19 -07001285 dev->stats.tx_fifo_errors++;
Don Fry9691edd2006-09-13 10:16:21 -07001286 if (!lp->dxsuflo) { /* If controller doesn't recover ... */
1287 /* Ackk! On FIFO errors the Tx unit is turned off! */
1288 /* Remove this verbosity later! */
Joe Perches13ff83b2010-02-15 08:34:25 +00001289 netif_err(lp, tx_err, dev, "Tx FIFO error!\n");
Don Fry9691edd2006-09-13 10:16:21 -07001290 must_restart = 1;
1291 }
1292 }
1293#endif
1294 } else {
1295 if (status & 0x1800)
Don Fry4f1e5ba2007-10-17 17:06:19 -07001296 dev->stats.collisions++;
1297 dev->stats.tx_packets++;
Don Fry9691edd2006-09-13 10:16:21 -07001298 }
1299
1300 /* We must free the original skb */
1301 if (lp->tx_skbuff[entry]) {
1302 pci_unmap_single(lp->pci_dev,
1303 lp->tx_dma_addr[entry],
1304 lp->tx_skbuff[entry]->
1305 len, PCI_DMA_TODEVICE);
Don Fry3904c322006-09-13 10:16:38 -07001306 dev_kfree_skb_any(lp->tx_skbuff[entry]);
Don Fry9691edd2006-09-13 10:16:21 -07001307 lp->tx_skbuff[entry] = NULL;
1308 lp->tx_dma_addr[entry] = 0;
1309 }
1310 dirty_tx++;
1311 }
1312
Don Fry3904c322006-09-13 10:16:38 -07001313 delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size);
Don Fry9691edd2006-09-13 10:16:21 -07001314 if (delta > lp->tx_ring_size) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001315 netif_err(lp, drv, dev, "out-of-sync dirty pointer, %d vs. %d, full=%d\n",
1316 dirty_tx, lp->cur_tx, lp->tx_full);
Don Fry9691edd2006-09-13 10:16:21 -07001317 dirty_tx += lp->tx_ring_size;
1318 delta -= lp->tx_ring_size;
1319 }
1320
1321 if (lp->tx_full &&
1322 netif_queue_stopped(dev) &&
1323 delta < lp->tx_ring_size - 2) {
1324 /* The ring is no longer full, clear tbusy. */
1325 lp->tx_full = 0;
1326 netif_wake_queue(dev);
1327 }
1328 lp->dirty_tx = dirty_tx;
1329
1330 return must_restart;
1331}
1332
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001333static int pcnet32_poll(struct napi_struct *napi, int budget)
Don Fry7de745e2006-09-13 10:16:53 -07001334{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001335 struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi);
1336 struct net_device *dev = lp->dev;
Don Fry7de745e2006-09-13 10:16:53 -07001337 unsigned long ioaddr = dev->base_addr;
1338 unsigned long flags;
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001339 int work_done;
Don Fry7de745e2006-09-13 10:16:53 -07001340 u16 val;
1341
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001342 work_done = pcnet32_rx(dev, budget);
Don Fry7de745e2006-09-13 10:16:53 -07001343
1344 spin_lock_irqsave(&lp->lock, flags);
1345 if (pcnet32_tx(dev)) {
1346 /* reset the chip to clear the error condition, then restart */
1347 lp->a.reset(ioaddr);
1348 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
1349 pcnet32_restart(dev, CSR0_START);
1350 netif_wake_queue(dev);
1351 }
1352 spin_unlock_irqrestore(&lp->lock, flags);
1353
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001354 if (work_done < budget) {
1355 spin_lock_irqsave(&lp->lock, flags);
Don Fry7de745e2006-09-13 10:16:53 -07001356
Ben Hutchings288379f2009-01-19 16:43:59 -08001357 __napi_complete(napi);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001358
1359 /* clear interrupt masks */
1360 val = lp->a.read_csr(ioaddr, CSR3);
1361 val &= 0x00ff;
1362 lp->a.write_csr(ioaddr, CSR3, val);
1363
1364 /* Set interrupt enable. */
1365 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
John Dykstrace105a02009-04-29 17:22:30 -07001366
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001367 spin_unlock_irqrestore(&lp->lock, flags);
Don Fry7de745e2006-09-13 10:16:53 -07001368 }
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001369 return work_done;
Don Fry7de745e2006-09-13 10:16:53 -07001370}
Don Fry7de745e2006-09-13 10:16:53 -07001371
Don Fryac62ef02006-03-20 15:26:03 -08001372#define PCNET32_REGS_PER_PHY 32
1373#define PCNET32_MAX_PHYS 32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374static int pcnet32_get_regs_len(struct net_device *dev)
1375{
Don Fry1e56a4b2007-03-06 10:55:00 -08001376 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001377 int j = lp->phycount * PCNET32_REGS_PER_PHY;
Don Fryac62ef02006-03-20 15:26:03 -08001378
Joe Perches9e3f8062010-02-15 08:34:26 +00001379 return (PCNET32_NUM_REGS + j) * sizeof(u16);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380}
1381
1382static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001383 void *ptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001385 int i, csr0;
1386 u16 *buff = ptr;
Don Fry1e56a4b2007-03-06 10:55:00 -08001387 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001388 struct pcnet32_access *a = &lp->a;
1389 ulong ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001390 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001392 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393
Don Frydf27f4a2006-06-29 13:55:02 -07001394 csr0 = a->read_csr(ioaddr, CSR0);
1395 if (!(csr0 & CSR0_STOP)) /* If not stopped */
1396 pcnet32_suspend(dev, &flags, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001398 /* read address PROM */
1399 for (i = 0; i < 16; i += 2)
1400 *buff++ = inw(ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001402 /* read control and status registers */
Joe Perches9e3f8062010-02-15 08:34:26 +00001403 for (i = 0; i < 90; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001404 *buff++ = a->read_csr(ioaddr, i);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001405
1406 *buff++ = a->read_csr(ioaddr, 112);
1407 *buff++ = a->read_csr(ioaddr, 114);
1408
1409 /* read bus configuration registers */
Joe Perches9e3f8062010-02-15 08:34:26 +00001410 for (i = 0; i < 30; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001411 *buff++ = a->read_bcr(ioaddr, i);
Joe Perches9e3f8062010-02-15 08:34:26 +00001412
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001413 *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */
Joe Perches9e3f8062010-02-15 08:34:26 +00001414
1415 for (i = 31; i < 36; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001416 *buff++ = a->read_bcr(ioaddr, i);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001417
1418 /* read mii phy registers */
1419 if (lp->mii) {
1420 int j;
1421 for (j = 0; j < PCNET32_MAX_PHYS; j++) {
1422 if (lp->phymask & (1 << j)) {
1423 for (i = 0; i < PCNET32_REGS_PER_PHY; i++) {
1424 lp->a.write_bcr(ioaddr, 33,
1425 (j << 5) | i);
1426 *buff++ = lp->a.read_bcr(ioaddr, 34);
1427 }
1428 }
1429 }
1430 }
1431
Don Frydf27f4a2006-06-29 13:55:02 -07001432 if (!(csr0 & CSR0_STOP)) { /* If not stopped */
1433 int csr5;
1434
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001435 /* clear SUSPEND (SPND) - CSR5 bit 0 */
Don Frydf27f4a2006-06-29 13:55:02 -07001436 csr5 = a->read_csr(ioaddr, CSR5);
1437 a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001438 }
1439
1440 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441}
1442
Jeff Garzik7282d492006-09-13 14:30:00 -04001443static const struct ethtool_ops pcnet32_ethtool_ops = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001444 .get_settings = pcnet32_get_settings,
1445 .set_settings = pcnet32_set_settings,
1446 .get_drvinfo = pcnet32_get_drvinfo,
1447 .get_msglevel = pcnet32_get_msglevel,
1448 .set_msglevel = pcnet32_set_msglevel,
1449 .nway_reset = pcnet32_nway_reset,
1450 .get_link = pcnet32_get_link,
1451 .get_ringparam = pcnet32_get_ringparam,
1452 .set_ringparam = pcnet32_set_ringparam,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001453 .get_strings = pcnet32_get_strings,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001454 .self_test = pcnet32_ethtool_test,
1455 .phys_id = pcnet32_phys_id,
1456 .get_regs_len = pcnet32_get_regs_len,
1457 .get_regs = pcnet32_get_regs,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07001458 .get_sset_count = pcnet32_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459};
1460
1461/* only probes for non-PCI devices, the rest are handled by
1462 * pci_register_driver via pcnet32_probe_pci */
1463
Don Frydcaf9762006-06-29 13:52:29 -07001464static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001466 unsigned int *port, ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001468 /* search for PCnet32 VLB cards at known addresses */
1469 for (port = pcnet32_portlist; (ioaddr = *port); port++) {
1470 if (request_region
1471 (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) {
1472 /* check if there is really a pcnet chip on that ioaddr */
Joe Perches8e95a202009-12-03 07:58:21 +00001473 if ((inb(ioaddr + 14) == 0x57) &&
1474 (inb(ioaddr + 15) == 0x57)) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001475 pcnet32_probe1(ioaddr, 0, NULL);
1476 } else {
1477 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1478 }
1479 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481}
1482
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483static int __devinit
1484pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
1485{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001486 unsigned long ioaddr;
1487 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001489 err = pci_enable_device(pdev);
1490 if (err < 0) {
1491 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001492 pr_err("failed to enable device -- err=%d\n", err);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001493 return err;
1494 }
1495 pci_set_master(pdev);
1496
1497 ioaddr = pci_resource_start(pdev, 0);
1498 if (!ioaddr) {
1499 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001500 pr_err("card has no PCI IO resources, aborting\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001501 return -ENODEV;
1502 }
1503
1504 if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
1505 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001506 pr_err("architecture does not support 32bit PCI busmaster DMA\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001507 return -ENODEV;
1508 }
Joe Perches9e3f8062010-02-15 08:34:26 +00001509 if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001510 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001511 pr_err("io address range already allocated\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001512 return -EBUSY;
1513 }
1514
1515 err = pcnet32_probe1(ioaddr, 1, pdev);
Joe Perches9e3f8062010-02-15 08:34:26 +00001516 if (err < 0)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001517 pci_disable_device(pdev);
Joe Perches9e3f8062010-02-15 08:34:26 +00001518
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520}
1521
Stephen Hemminger3bc124d2009-01-07 17:29:16 -08001522static const struct net_device_ops pcnet32_netdev_ops = {
1523 .ndo_open = pcnet32_open,
1524 .ndo_stop = pcnet32_close,
1525 .ndo_start_xmit = pcnet32_start_xmit,
1526 .ndo_tx_timeout = pcnet32_tx_timeout,
1527 .ndo_get_stats = pcnet32_get_stats,
1528 .ndo_set_multicast_list = pcnet32_set_multicast_list,
1529 .ndo_do_ioctl = pcnet32_ioctl,
1530 .ndo_change_mtu = eth_change_mtu,
1531 .ndo_set_mac_address = eth_mac_addr,
1532 .ndo_validate_addr = eth_validate_addr,
1533#ifdef CONFIG_NET_POLL_CONTROLLER
1534 .ndo_poll_controller = pcnet32_poll_controller,
1535#endif
1536};
1537
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538/* pcnet32_probe1
1539 * Called from both pcnet32_probe_vlbus and pcnet_probe_pci.
1540 * pdev will be NULL when called from pcnet32_probe_vlbus.
1541 */
1542static int __devinit
1543pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
1544{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001545 struct pcnet32_private *lp;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001546 int i, media;
1547 int fdx, mii, fset, dxsuflo;
1548 int chip_version;
1549 char *chipname;
1550 struct net_device *dev;
1551 struct pcnet32_access *a = NULL;
1552 u8 promaddr[6];
1553 int ret = -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001555 /* reset the chip */
1556 pcnet32_wio_reset(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001558 /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */
1559 if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) {
1560 a = &pcnet32_wio;
1561 } else {
1562 pcnet32_dwio_reset(ioaddr);
Joe Perches8e95a202009-12-03 07:58:21 +00001563 if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 &&
1564 pcnet32_dwio_check(ioaddr)) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001565 a = &pcnet32_dwio;
Don Frydf4e7f72009-07-31 08:40:06 +00001566 } else {
1567 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001568 pr_err("No access methods\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001569 goto err_release_region;
Don Frydf4e7f72009-07-31 08:40:06 +00001570 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001573 chip_version =
1574 a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16);
1575 if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW))
Joe Perches13ff83b2010-02-15 08:34:25 +00001576 pr_info(" PCnet chip version is %#x\n", chip_version);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001577 if ((chip_version & 0xfff) != 0x003) {
1578 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001579 pr_info("Unsupported chip version\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001580 goto err_release_region;
1581 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001583 /* initialize variables */
1584 fdx = mii = fset = dxsuflo = 0;
1585 chip_version = (chip_version >> 12) & 0xffff;
1586
1587 switch (chip_version) {
1588 case 0x2420:
1589 chipname = "PCnet/PCI 79C970"; /* PCI */
1590 break;
1591 case 0x2430:
1592 if (shared)
1593 chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */
1594 else
1595 chipname = "PCnet/32 79C965"; /* 486/VL bus */
1596 break;
1597 case 0x2621:
1598 chipname = "PCnet/PCI II 79C970A"; /* PCI */
1599 fdx = 1;
1600 break;
1601 case 0x2623:
1602 chipname = "PCnet/FAST 79C971"; /* PCI */
1603 fdx = 1;
1604 mii = 1;
1605 fset = 1;
1606 break;
1607 case 0x2624:
1608 chipname = "PCnet/FAST+ 79C972"; /* PCI */
1609 fdx = 1;
1610 mii = 1;
1611 fset = 1;
1612 break;
1613 case 0x2625:
1614 chipname = "PCnet/FAST III 79C973"; /* PCI */
1615 fdx = 1;
1616 mii = 1;
1617 break;
1618 case 0x2626:
1619 chipname = "PCnet/Home 79C978"; /* PCI */
1620 fdx = 1;
1621 /*
1622 * This is based on specs published at www.amd.com. This section
1623 * assumes that a card with a 79C978 wants to go into standard
1624 * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode,
1625 * and the module option homepna=1 can select this instead.
1626 */
1627 media = a->read_bcr(ioaddr, 49);
1628 media &= ~3; /* default to 10Mb ethernet */
1629 if (cards_found < MAX_UNITS && homepna[cards_found])
1630 media |= 1; /* switch to home wiring mode */
1631 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001632 printk(KERN_DEBUG PFX "media set to %sMbit mode\n",
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001633 (media & 1) ? "1" : "10");
1634 a->write_bcr(ioaddr, 49, media);
1635 break;
1636 case 0x2627:
1637 chipname = "PCnet/FAST III 79C975"; /* PCI */
1638 fdx = 1;
1639 mii = 1;
1640 break;
1641 case 0x2628:
1642 chipname = "PCnet/PRO 79C976";
1643 fdx = 1;
1644 mii = 1;
1645 break;
1646 default:
1647 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001648 pr_info("PCnet version %#x, no PCnet32 chip\n",
1649 chip_version);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001650 goto err_release_region;
1651 }
1652
1653 /*
1654 * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit
1655 * starting until the packet is loaded. Strike one for reliability, lose
1656 * one for latency - although on PCI this isnt a big loss. Older chips
1657 * have FIFO's smaller than a packet, so you can't do this.
1658 * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn.
1659 */
1660
1661 if (fset) {
1662 a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860));
1663 a->write_csr(ioaddr, 80,
1664 (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00);
1665 dxsuflo = 1;
1666 }
1667
Don Fry6ecb7662007-03-06 10:45:23 -08001668 dev = alloc_etherdev(sizeof(*lp));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001669 if (!dev) {
1670 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001671 pr_err("Memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001672 ret = -ENOMEM;
1673 goto err_release_region;
1674 }
Don Fry63097b32009-07-31 08:45:29 +00001675
1676 if (pdev)
1677 SET_NETDEV_DEV(dev, &pdev->dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001678
1679 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001680 pr_info("%s at %#3lx,", chipname, ioaddr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001681
1682 /* In most chips, after a chip reset, the ethernet address is read from the
1683 * station address PROM at the base address and programmed into the
1684 * "Physical Address Registers" CSR12-14.
1685 * As a precautionary measure, we read the PROM values and complain if
Linas Vepstasbc0e1fc2006-03-28 16:36:23 -06001686 * they disagree with the CSRs. If they miscompare, and the PROM addr
1687 * is valid, then the PROM addr is used.
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001688 */
1689 for (i = 0; i < 3; i++) {
1690 unsigned int val;
1691 val = a->read_csr(ioaddr, i + 12) & 0x0ffff;
1692 /* There may be endianness issues here. */
1693 dev->dev_addr[2 * i] = val & 0x0ff;
1694 dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff;
1695 }
1696
1697 /* read PROM address and compare with CSR address */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001698 for (i = 0; i < 6; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001699 promaddr[i] = inb(ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700
Joe Perches8e95a202009-12-03 07:58:21 +00001701 if (memcmp(promaddr, dev->dev_addr, 6) ||
1702 !is_valid_ether_addr(dev->dev_addr)) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001703 if (is_valid_ether_addr(promaddr)) {
1704 if (pcnet32_debug & NETIF_MSG_PROBE) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001705 pr_cont(" warning: CSR address invalid,\n");
1706 pr_info(" using instead PROM address of");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001707 }
1708 memcpy(dev->dev_addr, promaddr, 6);
1709 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001711 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001713 /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */
1714 if (!is_valid_ether_addr(dev->perm_addr))
Daniel Drake1f044932009-12-24 08:11:24 +00001715 memset(dev->dev_addr, 0, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001717 if (pcnet32_debug & NETIF_MSG_PROBE) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001718 pr_cont(" %pM", dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001720 /* Version 0x2623 and 0x2624 */
1721 if (((chip_version + 1) & 0xfffe) == 0x2624) {
1722 i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */
Joe Perches13ff83b2010-02-15 08:34:25 +00001723 pr_info(" tx_start_pt(0x%04x):", i);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001724 switch (i >> 10) {
1725 case 0:
Joe Perches13ff83b2010-02-15 08:34:25 +00001726 pr_cont(" 20 bytes,");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001727 break;
1728 case 1:
Joe Perches13ff83b2010-02-15 08:34:25 +00001729 pr_cont(" 64 bytes,");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001730 break;
1731 case 2:
Joe Perches13ff83b2010-02-15 08:34:25 +00001732 pr_cont(" 128 bytes,");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001733 break;
1734 case 3:
Joe Perches13ff83b2010-02-15 08:34:25 +00001735 pr_cont("~220 bytes,");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001736 break;
1737 }
1738 i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */
Joe Perches13ff83b2010-02-15 08:34:25 +00001739 pr_cont(" BCR18(%x):", i & 0xffff);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001740 if (i & (1 << 5))
Joe Perches13ff83b2010-02-15 08:34:25 +00001741 pr_cont("BurstWrEn ");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001742 if (i & (1 << 6))
Joe Perches13ff83b2010-02-15 08:34:25 +00001743 pr_cont("BurstRdEn ");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001744 if (i & (1 << 7))
Joe Perches13ff83b2010-02-15 08:34:25 +00001745 pr_cont("DWordIO ");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001746 if (i & (1 << 11))
Joe Perches13ff83b2010-02-15 08:34:25 +00001747 pr_cont("NoUFlow ");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001748 i = a->read_bcr(ioaddr, 25);
Joe Perches13ff83b2010-02-15 08:34:25 +00001749 pr_info(" SRAMSIZE=0x%04x,", i << 8);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001750 i = a->read_bcr(ioaddr, 26);
Joe Perches13ff83b2010-02-15 08:34:25 +00001751 pr_cont(" SRAM_BND=0x%04x,", i << 8);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001752 i = a->read_bcr(ioaddr, 27);
1753 if (i & (1 << 14))
Joe Perches13ff83b2010-02-15 08:34:25 +00001754 pr_cont("LowLatRx");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001755 }
1756 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001758 dev->base_addr = ioaddr;
Don Fry1e56a4b2007-03-06 10:55:00 -08001759 lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001760 /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */
Joe Perches9e3f8062010-02-15 08:34:26 +00001761 lp->init_block = pci_alloc_consistent(pdev, sizeof(*lp->init_block),
1762 &lp->init_dma_addr);
1763 if (!lp->init_block) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001764 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001765 pr_err("Consistent memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001766 ret = -ENOMEM;
1767 goto err_free_netdev;
1768 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001769 lp->pci_dev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001771 lp->dev = dev;
1772
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001773 spin_lock_init(&lp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001775 lp->name = chipname;
1776 lp->shared_irq = shared;
1777 lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */
1778 lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */
1779 lp->tx_mod_mask = lp->tx_ring_size - 1;
1780 lp->rx_mod_mask = lp->rx_ring_size - 1;
1781 lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12);
1782 lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4);
1783 lp->mii_if.full_duplex = fdx;
1784 lp->mii_if.phy_id_mask = 0x1f;
1785 lp->mii_if.reg_num_mask = 0x1f;
1786 lp->dxsuflo = dxsuflo;
1787 lp->mii = mii;
Don Fry8d916262006-08-22 10:22:37 -07001788 lp->chip_version = chip_version;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001789 lp->msg_enable = pcnet32_debug;
Joe Perches8e95a202009-12-03 07:58:21 +00001790 if ((cards_found >= MAX_UNITS) ||
1791 (options[cards_found] >= sizeof(options_mapping)))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001792 lp->options = PCNET32_PORT_ASEL;
1793 else
1794 lp->options = options_mapping[options[cards_found]];
1795 lp->mii_if.dev = dev;
1796 lp->mii_if.mdio_read = mdio_read;
1797 lp->mii_if.mdio_write = mdio_write;
1798
Don Fryfeff3482007-10-17 15:59:22 -07001799 /* napi.weight is used in both the napi and non-napi cases */
1800 lp->napi.weight = lp->rx_ring_size / 2;
1801
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001802 netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001803
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001804 if (fdx && !(lp->options & PCNET32_PORT_ASEL) &&
1805 ((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
1806 lp->options |= PCNET32_PORT_FD;
1807
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001808 lp->a = *a;
1809
1810 /* prior to register_netdev, dev->name is not yet correct */
1811 if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) {
1812 ret = -ENOMEM;
1813 goto err_free_ring;
1814 }
1815 /* detect special T1/E1 WAN card by checking for MAC address */
Joe Perches8e95a202009-12-03 07:58:21 +00001816 if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 &&
1817 dev->dev_addr[2] == 0x75)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001818 lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819
Al Viro3e335452007-08-23 00:45:46 -04001820 lp->init_block->mode = cpu_to_le16(0x0003); /* Disable Rx and Tx. */
Don Fry6ecb7662007-03-06 10:45:23 -08001821 lp->init_block->tlen_rlen =
Al Viro3e335452007-08-23 00:45:46 -04001822 cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001823 for (i = 0; i < 6; i++)
Don Fry6ecb7662007-03-06 10:45:23 -08001824 lp->init_block->phys_addr[i] = dev->dev_addr[i];
1825 lp->init_block->filter[0] = 0x00000000;
1826 lp->init_block->filter[1] = 0x00000000;
Al Viro3e335452007-08-23 00:45:46 -04001827 lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr);
1828 lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001830 /* switch pcnet32 to 32bit mode */
1831 a->write_bcr(ioaddr, 20, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832
Don Fry6ecb7662007-03-06 10:45:23 -08001833 a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
1834 a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001836 if (pdev) { /* use the IRQ provided by PCI */
1837 dev->irq = pdev->irq;
1838 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001839 pr_cont(" assigned IRQ %d\n", dev->irq);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001840 } else {
1841 unsigned long irq_mask = probe_irq_on();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001843 /*
1844 * To auto-IRQ we enable the initialization-done and DMA error
1845 * interrupts. For ISA boards we get a DMA error, but VLB and PCI
1846 * boards will work.
1847 */
1848 /* Trigger an initialization just for the interrupt. */
Don Fryb368a3f2006-09-13 10:16:07 -07001849 a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001850 mdelay(1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001851
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001852 dev->irq = probe_irq_off(irq_mask);
1853 if (!dev->irq) {
1854 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001855 pr_cont(", failed to detect IRQ line\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001856 ret = -ENODEV;
1857 goto err_free_ring;
1858 }
1859 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001860 pr_cont(", probed IRQ %d\n", dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001863 /* Set the mii phy_id so that we can query the link state */
1864 if (lp->mii) {
1865 /* lp->phycount and lp->phymask are set to 0 by memset above */
Don Fryac62ef02006-03-20 15:26:03 -08001866
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001867 lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f;
1868 /* scan for PHYs */
1869 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
1870 unsigned short id1, id2;
Don Fryac62ef02006-03-20 15:26:03 -08001871
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001872 id1 = mdio_read(dev, i, MII_PHYSID1);
1873 if (id1 == 0xffff)
1874 continue;
1875 id2 = mdio_read(dev, i, MII_PHYSID2);
1876 if (id2 == 0xffff)
1877 continue;
1878 if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624)
1879 continue; /* 79C971 & 79C972 have phantom phy at id 31 */
1880 lp->phycount++;
1881 lp->phymask |= (1 << i);
1882 lp->mii_if.phy_id = i;
1883 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001884 pr_info("Found PHY %04x:%04x at address %d\n",
1885 id1, id2, i);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001886 }
1887 lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5);
Joe Perches9e3f8062010-02-15 08:34:26 +00001888 if (lp->phycount > 1)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001889 lp->options |= PCNET32_PORT_MII;
Don Fryac62ef02006-03-20 15:26:03 -08001890 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001892 init_timer(&lp->watchdog_timer);
1893 lp->watchdog_timer.data = (unsigned long)dev;
1894 lp->watchdog_timer.function = (void *)&pcnet32_watchdog;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001896 /* The PCNET32-specific entries in the device structure. */
Stephen Hemminger3bc124d2009-01-07 17:29:16 -08001897 dev->netdev_ops = &pcnet32_netdev_ops;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001898 dev->ethtool_ops = &pcnet32_ethtool_ops;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001899 dev->watchdog_timeo = (5 * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001901 /* Fill in the generic fields of the device structure. */
1902 if (register_netdev(dev))
1903 goto err_free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001904
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001905 if (pdev) {
1906 pci_set_drvdata(pdev, dev);
1907 } else {
1908 lp->next = pcnet32_dev;
1909 pcnet32_dev = dev;
1910 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001912 if (pcnet32_debug & NETIF_MSG_PROBE)
Joe Perches13ff83b2010-02-15 08:34:25 +00001913 pr_info("%s: registered as %s\n", dev->name, lp->name);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001914 cards_found++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001916 /* enable LED writes */
1917 a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001918
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001919 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920
Don Frydf4e7f72009-07-31 08:40:06 +00001921err_free_ring:
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001922 pcnet32_free_ring(dev);
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04001923 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
Don Fry6ecb7662007-03-06 10:45:23 -08001924 lp->init_block, lp->init_dma_addr);
Don Frydf4e7f72009-07-31 08:40:06 +00001925err_free_netdev:
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001926 free_netdev(dev);
Don Frydf4e7f72009-07-31 08:40:06 +00001927err_release_region:
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001928 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1929 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930}
1931
Don Frya88c8442005-11-01 12:04:33 -08001932/* if any allocation fails, caller must also call pcnet32_free_ring */
Andrew Mortonb166cfb2008-05-14 16:20:14 -07001933static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
Hubert WS Lineabf0412005-09-14 11:39:25 -07001934{
Don Fry1e56a4b2007-03-06 10:55:00 -08001935 struct pcnet32_private *lp = netdev_priv(dev);
Hubert WS Lineabf0412005-09-14 11:39:25 -07001936
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001937 lp->tx_ring = pci_alloc_consistent(lp->pci_dev,
1938 sizeof(struct pcnet32_tx_head) *
1939 lp->tx_ring_size,
1940 &lp->tx_ring_dma_addr);
1941 if (lp->tx_ring == NULL) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001942 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001943 return -ENOMEM;
1944 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07001945
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001946 lp->rx_ring = pci_alloc_consistent(lp->pci_dev,
1947 sizeof(struct pcnet32_rx_head) *
1948 lp->rx_ring_size,
1949 &lp->rx_ring_dma_addr);
1950 if (lp->rx_ring == NULL) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001951 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001952 return -ENOMEM;
1953 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07001954
Don Fry12fa30f2006-06-29 13:53:48 -07001955 lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001956 GFP_ATOMIC);
1957 if (!lp->tx_dma_addr) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001958 netif_err(lp, drv, dev, "Memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001959 return -ENOMEM;
1960 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07001961
Don Fry12fa30f2006-06-29 13:53:48 -07001962 lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001963 GFP_ATOMIC);
1964 if (!lp->rx_dma_addr) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001965 netif_err(lp, drv, dev, "Memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001966 return -ENOMEM;
1967 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07001968
Don Fry12fa30f2006-06-29 13:53:48 -07001969 lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001970 GFP_ATOMIC);
1971 if (!lp->tx_skbuff) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001972 netif_err(lp, drv, dev, "Memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001973 return -ENOMEM;
1974 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07001975
Don Fry12fa30f2006-06-29 13:53:48 -07001976 lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001977 GFP_ATOMIC);
1978 if (!lp->rx_skbuff) {
Joe Perches13ff83b2010-02-15 08:34:25 +00001979 netif_err(lp, drv, dev, "Memory allocation failed\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001980 return -ENOMEM;
1981 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07001982
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001983 return 0;
Hubert WS Lineabf0412005-09-14 11:39:25 -07001984}
1985
Hubert WS Lineabf0412005-09-14 11:39:25 -07001986static void pcnet32_free_ring(struct net_device *dev)
1987{
Don Fry1e56a4b2007-03-06 10:55:00 -08001988 struct pcnet32_private *lp = netdev_priv(dev);
Hubert WS Lineabf0412005-09-14 11:39:25 -07001989
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001990 kfree(lp->tx_skbuff);
1991 lp->tx_skbuff = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07001992
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001993 kfree(lp->rx_skbuff);
1994 lp->rx_skbuff = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07001995
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001996 kfree(lp->tx_dma_addr);
1997 lp->tx_dma_addr = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07001998
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001999 kfree(lp->rx_dma_addr);
2000 lp->rx_dma_addr = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002001
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002002 if (lp->tx_ring) {
2003 pci_free_consistent(lp->pci_dev,
2004 sizeof(struct pcnet32_tx_head) *
2005 lp->tx_ring_size, lp->tx_ring,
2006 lp->tx_ring_dma_addr);
2007 lp->tx_ring = NULL;
2008 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002009
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002010 if (lp->rx_ring) {
2011 pci_free_consistent(lp->pci_dev,
2012 sizeof(struct pcnet32_rx_head) *
2013 lp->rx_ring_size, lp->rx_ring,
2014 lp->rx_ring_dma_addr);
2015 lp->rx_ring = NULL;
2016 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002017}
2018
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002019static int pcnet32_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020{
Don Fry1e56a4b2007-03-06 10:55:00 -08002021 struct pcnet32_private *lp = netdev_priv(dev);
Don Fry63097b32009-07-31 08:45:29 +00002022 struct pci_dev *pdev = lp->pci_dev;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002023 unsigned long ioaddr = dev->base_addr;
2024 u16 val;
2025 int i;
2026 int rc;
2027 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028
Joe Perchesa0607fd2009-11-18 23:29:17 -08002029 if (request_irq(dev->irq, pcnet32_interrupt,
Thomas Gleixner1fb9df52006-07-01 19:29:39 -07002030 lp->shared_irq ? IRQF_SHARED : 0, dev->name,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002031 (void *)dev)) {
2032 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002035 spin_lock_irqsave(&lp->lock, flags);
2036 /* Check for a valid station address */
2037 if (!is_valid_ether_addr(dev->dev_addr)) {
2038 rc = -EINVAL;
2039 goto err_free_irq;
2040 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002042 /* Reset the PCNET32 */
2043 lp->a.reset(ioaddr);
2044
2045 /* switch pcnet32 to 32bit mode */
2046 lp->a.write_bcr(ioaddr, 20, 2);
2047
Joe Perches13ff83b2010-02-15 08:34:25 +00002048 netif_printk(lp, ifup, KERN_DEBUG, dev,
2049 "%s() irq %d tx/rx rings %#x/%#x init %#x\n",
2050 __func__, dev->irq, (u32) (lp->tx_ring_dma_addr),
2051 (u32) (lp->rx_ring_dma_addr),
2052 (u32) (lp->init_dma_addr));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002053
2054 /* set/reset autoselect bit */
2055 val = lp->a.read_bcr(ioaddr, 2) & ~2;
2056 if (lp->options & PCNET32_PORT_ASEL)
2057 val |= 2;
2058 lp->a.write_bcr(ioaddr, 2, val);
2059
2060 /* handle full duplex setting */
2061 if (lp->mii_if.full_duplex) {
2062 val = lp->a.read_bcr(ioaddr, 9) & ~3;
2063 if (lp->options & PCNET32_PORT_FD) {
2064 val |= 1;
2065 if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI))
2066 val |= 2;
2067 } else if (lp->options & PCNET32_PORT_ASEL) {
2068 /* workaround of xSeries250, turn on for 79C975 only */
Don Fry8d916262006-08-22 10:22:37 -07002069 if (lp->chip_version == 0x2627)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002070 val |= 3;
2071 }
2072 lp->a.write_bcr(ioaddr, 9, val);
2073 }
2074
2075 /* set/reset GPSI bit in test register */
2076 val = lp->a.read_csr(ioaddr, 124) & ~0x10;
2077 if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI)
2078 val |= 0x10;
2079 lp->a.write_csr(ioaddr, 124, val);
2080
2081 /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */
Don Fry63097b32009-07-31 08:45:29 +00002082 if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT &&
2083 (pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX ||
2084 pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) {
Don Fryac62ef02006-03-20 15:26:03 -08002085 if (lp->options & PCNET32_PORT_ASEL) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002086 lp->options = PCNET32_PORT_FD | PCNET32_PORT_100;
Joe Perches13ff83b2010-02-15 08:34:25 +00002087 netif_printk(lp, link, KERN_DEBUG, dev,
2088 "Setting 100Mb-Full Duplex\n");
Don Fryac62ef02006-03-20 15:26:03 -08002089 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002090 }
2091 if (lp->phycount < 2) {
2092 /*
2093 * 24 Jun 2004 according AMD, in order to change the PHY,
2094 * DANAS (or DISPM for 79C976) must be set; then select the speed,
2095 * duplex, and/or enable auto negotiation, and clear DANAS
2096 */
2097 if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) {
2098 lp->a.write_bcr(ioaddr, 32,
2099 lp->a.read_bcr(ioaddr, 32) | 0x0080);
2100 /* disable Auto Negotiation, set 10Mpbs, HD */
2101 val = lp->a.read_bcr(ioaddr, 32) & ~0xb8;
2102 if (lp->options & PCNET32_PORT_FD)
2103 val |= 0x10;
2104 if (lp->options & PCNET32_PORT_100)
2105 val |= 0x08;
2106 lp->a.write_bcr(ioaddr, 32, val);
2107 } else {
2108 if (lp->options & PCNET32_PORT_ASEL) {
2109 lp->a.write_bcr(ioaddr, 32,
2110 lp->a.read_bcr(ioaddr,
2111 32) | 0x0080);
2112 /* enable auto negotiate, setup, disable fd */
2113 val = lp->a.read_bcr(ioaddr, 32) & ~0x98;
2114 val |= 0x20;
2115 lp->a.write_bcr(ioaddr, 32, val);
2116 }
2117 }
2118 } else {
2119 int first_phy = -1;
2120 u16 bmcr;
2121 u32 bcr9;
2122 struct ethtool_cmd ecmd;
2123
2124 /*
2125 * There is really no good other way to handle multiple PHYs
2126 * other than turning off all automatics
2127 */
2128 val = lp->a.read_bcr(ioaddr, 2);
2129 lp->a.write_bcr(ioaddr, 2, val & ~2);
2130 val = lp->a.read_bcr(ioaddr, 32);
2131 lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */
2132
2133 if (!(lp->options & PCNET32_PORT_ASEL)) {
2134 /* setup ecmd */
2135 ecmd.port = PORT_MII;
2136 ecmd.transceiver = XCVR_INTERNAL;
2137 ecmd.autoneg = AUTONEG_DISABLE;
2138 ecmd.speed =
2139 lp->
2140 options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10;
2141 bcr9 = lp->a.read_bcr(ioaddr, 9);
2142
2143 if (lp->options & PCNET32_PORT_FD) {
2144 ecmd.duplex = DUPLEX_FULL;
2145 bcr9 |= (1 << 0);
2146 } else {
2147 ecmd.duplex = DUPLEX_HALF;
2148 bcr9 |= ~(1 << 0);
2149 }
2150 lp->a.write_bcr(ioaddr, 9, bcr9);
2151 }
2152
2153 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
2154 if (lp->phymask & (1 << i)) {
2155 /* isolate all but the first PHY */
2156 bmcr = mdio_read(dev, i, MII_BMCR);
2157 if (first_phy == -1) {
2158 first_phy = i;
2159 mdio_write(dev, i, MII_BMCR,
2160 bmcr & ~BMCR_ISOLATE);
2161 } else {
2162 mdio_write(dev, i, MII_BMCR,
2163 bmcr | BMCR_ISOLATE);
2164 }
2165 /* use mii_ethtool_sset to setup PHY */
2166 lp->mii_if.phy_id = i;
2167 ecmd.phy_address = i;
2168 if (lp->options & PCNET32_PORT_ASEL) {
2169 mii_ethtool_gset(&lp->mii_if, &ecmd);
2170 ecmd.autoneg = AUTONEG_ENABLE;
2171 }
2172 mii_ethtool_sset(&lp->mii_if, &ecmd);
2173 }
2174 }
2175 lp->mii_if.phy_id = first_phy;
Joe Perches13ff83b2010-02-15 08:34:25 +00002176 netif_info(lp, link, dev, "Using PHY number %d\n", first_phy);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002177 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178
2179#ifdef DO_DXSUFLO
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002180 if (lp->dxsuflo) { /* Disable transmit stop on underflow */
Don Fryb368a3f2006-09-13 10:16:07 -07002181 val = lp->a.read_csr(ioaddr, CSR3);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002182 val |= 0x40;
Don Fryb368a3f2006-09-13 10:16:07 -07002183 lp->a.write_csr(ioaddr, CSR3, val);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002184 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185#endif
2186
Don Fry6ecb7662007-03-06 10:45:23 -08002187 lp->init_block->mode =
Al Viro3e335452007-08-23 00:45:46 -04002188 cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002189 pcnet32_load_multicast(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002191 if (pcnet32_init_ring(dev)) {
2192 rc = -ENOMEM;
2193 goto err_free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002195
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002196 napi_enable(&lp->napi);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002197
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002198 /* Re-initialize the PCNET32, and start it when done. */
Don Fry6ecb7662007-03-06 10:45:23 -08002199 lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
2200 lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
Hubert WS Lineabf0412005-09-14 11:39:25 -07002201
Don Fryb368a3f2006-09-13 10:16:07 -07002202 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
2203 lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002205 netif_start_queue(dev);
2206
Don Fry8d916262006-08-22 10:22:37 -07002207 if (lp->chip_version >= PCNET32_79C970A) {
2208 /* Print the link status and start the watchdog */
2209 pcnet32_check_media(dev, 1);
Stephen Hemminger283a21d32009-01-08 11:17:13 -08002210 mod_timer(&lp->watchdog_timer, PCNET32_WATCHDOG_TIMEOUT);
Don Fry8d916262006-08-22 10:22:37 -07002211 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002212
2213 i = 0;
2214 while (i++ < 100)
Don Fryb368a3f2006-09-13 10:16:07 -07002215 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002216 break;
2217 /*
2218 * We used to clear the InitDone bit, 0x0100, here but Mark Stockton
2219 * reports that doing so triggers a bug in the '974.
2220 */
Don Fryb368a3f2006-09-13 10:16:07 -07002221 lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002222
Joe Perches13ff83b2010-02-15 08:34:25 +00002223 netif_printk(lp, ifup, KERN_DEBUG, dev,
2224 "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n",
2225 i,
2226 (u32) (lp->init_dma_addr),
2227 lp->a.read_csr(ioaddr, CSR0));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002228
2229 spin_unlock_irqrestore(&lp->lock, flags);
2230
2231 return 0; /* Always succeed */
2232
Joe Perches9e3f8062010-02-15 08:34:26 +00002233err_free_ring:
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002234 /* free any allocated skbuffs */
Don Fryac5bfe42006-06-29 13:55:27 -07002235 pcnet32_purge_rx_ring(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002236
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002237 /*
2238 * Switch back to 16bit mode to avoid problems with dumb
2239 * DOS packet driver after a warm reboot
2240 */
2241 lp->a.write_bcr(ioaddr, 20, 4);
2242
Joe Perches9e3f8062010-02-15 08:34:26 +00002243err_free_irq:
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002244 spin_unlock_irqrestore(&lp->lock, flags);
2245 free_irq(dev->irq, dev);
2246 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247}
2248
2249/*
2250 * The LANCE has been halted for one reason or another (busmaster memory
2251 * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure,
2252 * etc.). Modern LANCE variants always reload their ring-buffer
2253 * configuration when restarted, so we must reinitialize our ring
2254 * context before restarting. As part of this reinitialization,
2255 * find all packets still on the Tx ring and pretend that they had been
2256 * sent (in effect, drop the packets on the floor) - the higher-level
2257 * protocols will time out and retransmit. It'd be better to shuffle
2258 * these skbs to a temp list and then actually re-Tx them after
2259 * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com
2260 */
2261
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002262static void pcnet32_purge_tx_ring(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263{
Don Fry1e56a4b2007-03-06 10:55:00 -08002264 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002265 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002267 for (i = 0; i < lp->tx_ring_size; i++) {
2268 lp->tx_ring[i].status = 0; /* CPU owns buffer */
2269 wmb(); /* Make sure adapter sees owner change */
2270 if (lp->tx_skbuff[i]) {
2271 pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i],
2272 lp->tx_skbuff[i]->len,
2273 PCI_DMA_TODEVICE);
2274 dev_kfree_skb_any(lp->tx_skbuff[i]);
2275 }
2276 lp->tx_skbuff[i] = NULL;
2277 lp->tx_dma_addr[i] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279}
2280
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281/* Initialize the PCNET32 Rx and Tx rings. */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002282static int pcnet32_init_ring(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002283{
Don Fry1e56a4b2007-03-06 10:55:00 -08002284 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002285 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002286
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002287 lp->tx_full = 0;
2288 lp->cur_rx = lp->cur_tx = 0;
2289 lp->dirty_rx = lp->dirty_tx = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002291 for (i = 0; i < lp->rx_ring_size; i++) {
2292 struct sk_buff *rx_skbuff = lp->rx_skbuff[i];
2293 if (rx_skbuff == NULL) {
Joe Perches9e3f8062010-02-15 08:34:26 +00002294 lp->rx_skbuff[i] = dev_alloc_skb(PKT_BUF_SKB);
2295 rx_skbuff = lp->rx_skbuff[i];
2296 if (!rx_skbuff) {
2297 /* there is not much we can do at this point */
Joe Perches13ff83b2010-02-15 08:34:25 +00002298 netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n",
2299 __func__);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002300 return -1;
2301 }
Don Fry232c5642008-02-08 07:32:26 -08002302 skb_reserve(rx_skbuff, NET_IP_ALIGN);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002303 }
2304
2305 rmb();
2306 if (lp->rx_dma_addr[i] == 0)
2307 lp->rx_dma_addr[i] =
2308 pci_map_single(lp->pci_dev, rx_skbuff->data,
Don Fry232c5642008-02-08 07:32:26 -08002309 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
Al Viro3e335452007-08-23 00:45:46 -04002310 lp->rx_ring[i].base = cpu_to_le32(lp->rx_dma_addr[i]);
Don Fry232c5642008-02-08 07:32:26 -08002311 lp->rx_ring[i].buf_length = cpu_to_le16(NEG_BUF_SIZE);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002312 wmb(); /* Make sure owner changes after all others are visible */
Al Viro3e335452007-08-23 00:45:46 -04002313 lp->rx_ring[i].status = cpu_to_le16(0x8000);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002314 }
2315 /* The Tx buffer address is filled in as needed, but we do need to clear
2316 * the upper ownership bit. */
2317 for (i = 0; i < lp->tx_ring_size; i++) {
2318 lp->tx_ring[i].status = 0; /* CPU owns buffer */
2319 wmb(); /* Make sure adapter sees owner change */
2320 lp->tx_ring[i].base = 0;
2321 lp->tx_dma_addr[i] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322 }
2323
Don Fry6ecb7662007-03-06 10:45:23 -08002324 lp->init_block->tlen_rlen =
Al Viro3e335452007-08-23 00:45:46 -04002325 cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002326 for (i = 0; i < 6; i++)
Don Fry6ecb7662007-03-06 10:45:23 -08002327 lp->init_block->phys_addr[i] = dev->dev_addr[i];
Al Viro3e335452007-08-23 00:45:46 -04002328 lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr);
2329 lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002330 wmb(); /* Make sure all changes are visible */
2331 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332}
2333
2334/* the pcnet32 has been issued a stop or reset. Wait for the stop bit
2335 * then flush the pending transmit operations, re-initialize the ring,
2336 * and tell the chip to initialize.
2337 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002338static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339{
Don Fry1e56a4b2007-03-06 10:55:00 -08002340 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002341 unsigned long ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002343
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002344 /* wait for stop */
2345 for (i = 0; i < 100; i++)
Don Fryb368a3f2006-09-13 10:16:07 -07002346 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002347 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002348
Joe Perches13ff83b2010-02-15 08:34:25 +00002349 if (i >= 100)
2350 netif_err(lp, drv, dev, "%s timed out waiting for stop\n",
2351 __func__);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002352
2353 pcnet32_purge_tx_ring(dev);
2354 if (pcnet32_init_ring(dev))
2355 return;
2356
2357 /* ReInit Ring */
Don Fryb368a3f2006-09-13 10:16:07 -07002358 lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002359 i = 0;
2360 while (i++ < 1000)
Don Fryb368a3f2006-09-13 10:16:07 -07002361 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002362 break;
2363
Don Fryb368a3f2006-09-13 10:16:07 -07002364 lp->a.write_csr(ioaddr, CSR0, csr0_bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365}
2366
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002367static void pcnet32_tx_timeout(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002368{
Don Fry1e56a4b2007-03-06 10:55:00 -08002369 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002370 unsigned long ioaddr = dev->base_addr, flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002372 spin_lock_irqsave(&lp->lock, flags);
2373 /* Transmitter timeout, serious problems. */
2374 if (pcnet32_debug & NETIF_MSG_DRV)
Joe Perches13ff83b2010-02-15 08:34:25 +00002375 pr_err("%s: transmit timed out, status %4.4x, resetting\n",
Don Fryb368a3f2006-09-13 10:16:07 -07002376 dev->name, lp->a.read_csr(ioaddr, CSR0));
2377 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
Don Fry4f1e5ba2007-10-17 17:06:19 -07002378 dev->stats.tx_errors++;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002379 if (netif_msg_tx_err(lp)) {
2380 int i;
2381 printk(KERN_DEBUG
2382 " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.",
2383 lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "",
2384 lp->cur_rx);
2385 for (i = 0; i < lp->rx_ring_size; i++)
2386 printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
2387 le32_to_cpu(lp->rx_ring[i].base),
2388 (-le16_to_cpu(lp->rx_ring[i].buf_length)) &
2389 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length),
2390 le16_to_cpu(lp->rx_ring[i].status));
2391 for (i = 0; i < lp->tx_ring_size; i++)
2392 printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
2393 le32_to_cpu(lp->tx_ring[i].base),
2394 (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff,
2395 le32_to_cpu(lp->tx_ring[i].misc),
2396 le16_to_cpu(lp->tx_ring[i].status));
2397 printk("\n");
2398 }
Don Fryb368a3f2006-09-13 10:16:07 -07002399 pcnet32_restart(dev, CSR0_NORMAL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002401 dev->trans_start = jiffies;
2402 netif_wake_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002403
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002404 spin_unlock_irqrestore(&lp->lock, flags);
2405}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002406
Stephen Hemminger613573252009-08-31 19:50:58 +00002407static netdev_tx_t pcnet32_start_xmit(struct sk_buff *skb,
2408 struct net_device *dev)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002409{
Don Fry1e56a4b2007-03-06 10:55:00 -08002410 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002411 unsigned long ioaddr = dev->base_addr;
2412 u16 status;
2413 int entry;
2414 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002415
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002416 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417
Joe Perches13ff83b2010-02-15 08:34:25 +00002418 netif_printk(lp, tx_queued, KERN_DEBUG, dev,
2419 "%s() called, csr0 %4.4x\n",
2420 __func__, lp->a.read_csr(ioaddr, CSR0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002421
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002422 /* Default status -- will not enable Successful-TxDone
2423 * interrupt when that option is available to us.
2424 */
2425 status = 0x8300;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002426
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002427 /* Fill in a Tx ring entry */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002429 /* Mask to ring buffer boundary. */
2430 entry = lp->cur_tx & lp->tx_mod_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002431
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002432 /* Caution: the write order is important here, set the status
2433 * with the "ownership" bits last. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434
Al Viro3e335452007-08-23 00:45:46 -04002435 lp->tx_ring[entry].length = cpu_to_le16(-skb->len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002436
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002437 lp->tx_ring[entry].misc = 0x00000000;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002439 lp->tx_skbuff[entry] = skb;
2440 lp->tx_dma_addr[entry] =
2441 pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
Al Viro3e335452007-08-23 00:45:46 -04002442 lp->tx_ring[entry].base = cpu_to_le32(lp->tx_dma_addr[entry]);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002443 wmb(); /* Make sure owner changes after all others are visible */
Al Viro3e335452007-08-23 00:45:46 -04002444 lp->tx_ring[entry].status = cpu_to_le16(status);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002445
2446 lp->cur_tx++;
Don Fry4f1e5ba2007-10-17 17:06:19 -07002447 dev->stats.tx_bytes += skb->len;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002448
2449 /* Trigger an immediate send poll. */
Don Fryb368a3f2006-09-13 10:16:07 -07002450 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002451
2452 dev->trans_start = jiffies;
2453
2454 if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) {
2455 lp->tx_full = 1;
2456 netif_stop_queue(dev);
2457 }
2458 spin_unlock_irqrestore(&lp->lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00002459 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460}
2461
2462/* The PCNET32 interrupt handler. */
2463static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01002464pcnet32_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002466 struct net_device *dev = dev_id;
2467 struct pcnet32_private *lp;
2468 unsigned long ioaddr;
Don Fry5c993462006-09-13 10:15:43 -07002469 u16 csr0;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002470 int boguscnt = max_interrupt_work;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002471
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002472 ioaddr = dev->base_addr;
Don Fry1e56a4b2007-03-06 10:55:00 -08002473 lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002474
2475 spin_lock(&lp->lock);
2476
Don Fry3904c322006-09-13 10:16:38 -07002477 csr0 = lp->a.read_csr(ioaddr, CSR0);
2478 while ((csr0 & 0x8f00) && --boguscnt >= 0) {
Joe Perches9e3f8062010-02-15 08:34:26 +00002479 if (csr0 == 0xffff)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002480 break; /* PCMCIA remove happened */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002481 /* Acknowledge all of the current interrupt sources ASAP. */
Don Fry3904c322006-09-13 10:16:38 -07002482 lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002483
Joe Perches13ff83b2010-02-15 08:34:25 +00002484 netif_printk(lp, intr, KERN_DEBUG, dev,
2485 "interrupt csr0=%#2.2x new csr=%#2.2x\n",
2486 csr0, lp->a.read_csr(ioaddr, CSR0));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002487
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002488 /* Log misc errors. */
2489 if (csr0 & 0x4000)
Don Fry4f1e5ba2007-10-17 17:06:19 -07002490 dev->stats.tx_errors++; /* Tx babble. */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002491 if (csr0 & 0x1000) {
2492 /*
Don Fry3904c322006-09-13 10:16:38 -07002493 * This happens when our receive ring is full. This
2494 * shouldn't be a problem as we will see normal rx
2495 * interrupts for the frames in the receive ring. But
2496 * there are some PCI chipsets (I can reproduce this
2497 * on SP3G with Intel saturn chipset) which have
2498 * sometimes problems and will fill up the receive
2499 * ring with error descriptors. In this situation we
2500 * don't get a rx interrupt, but a missed frame
Don Fry7de745e2006-09-13 10:16:53 -07002501 * interrupt sooner or later.
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002502 */
Don Fry4f1e5ba2007-10-17 17:06:19 -07002503 dev->stats.rx_errors++; /* Missed a Rx frame. */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002504 }
2505 if (csr0 & 0x0800) {
Joe Perches13ff83b2010-02-15 08:34:25 +00002506 netif_err(lp, drv, dev, "Bus master arbitration failure, status %4.4x\n",
2507 csr0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002508 /* unlike for the lance, there is no restart needed */
2509 }
Ben Hutchings288379f2009-01-19 16:43:59 -08002510 if (napi_schedule_prep(&lp->napi)) {
Don Fry7de745e2006-09-13 10:16:53 -07002511 u16 val;
2512 /* set interrupt masks */
2513 val = lp->a.read_csr(ioaddr, CSR3);
2514 val |= 0x5f00;
2515 lp->a.write_csr(ioaddr, CSR3, val);
John Dykstrace105a02009-04-29 17:22:30 -07002516
Ben Hutchings288379f2009-01-19 16:43:59 -08002517 __napi_schedule(&lp->napi);
Don Fry7de745e2006-09-13 10:16:53 -07002518 break;
2519 }
Don Fry3904c322006-09-13 10:16:38 -07002520 csr0 = lp->a.read_csr(ioaddr, CSR0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002521 }
2522
Joe Perches13ff83b2010-02-15 08:34:25 +00002523 netif_printk(lp, intr, KERN_DEBUG, dev,
2524 "exiting interrupt, csr0=%#4.4x\n",
2525 lp->a.read_csr(ioaddr, CSR0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002526
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002527 spin_unlock(&lp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002529 return IRQ_HANDLED;
2530}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002532static int pcnet32_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002533{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002534 unsigned long ioaddr = dev->base_addr;
Don Fry1e56a4b2007-03-06 10:55:00 -08002535 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002536 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002538 del_timer_sync(&lp->watchdog_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002539
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002540 netif_stop_queue(dev);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002541 napi_disable(&lp->napi);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002543 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002544
Don Fry4f1e5ba2007-10-17 17:06:19 -07002545 dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002546
Joe Perches13ff83b2010-02-15 08:34:25 +00002547 netif_printk(lp, ifdown, KERN_DEBUG, dev,
2548 "Shutting down ethercard, status was %2.2x\n",
2549 lp->a.read_csr(ioaddr, CSR0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002550
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002551 /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */
Don Fryb368a3f2006-09-13 10:16:07 -07002552 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002553
Linus Torvalds1da177e2005-04-16 15:20:36 -07002554 /*
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002555 * Switch back to 16bit mode to avoid problems with dumb
2556 * DOS packet driver after a warm reboot
Linus Torvalds1da177e2005-04-16 15:20:36 -07002557 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002558 lp->a.write_bcr(ioaddr, 20, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002560 spin_unlock_irqrestore(&lp->lock, flags);
2561
2562 free_irq(dev->irq, dev);
2563
2564 spin_lock_irqsave(&lp->lock, flags);
2565
Don Fryac5bfe42006-06-29 13:55:27 -07002566 pcnet32_purge_rx_ring(dev);
2567 pcnet32_purge_tx_ring(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002568
2569 spin_unlock_irqrestore(&lp->lock, flags);
2570
2571 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002572}
2573
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002574static struct net_device_stats *pcnet32_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575{
Don Fry1e56a4b2007-03-06 10:55:00 -08002576 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002577 unsigned long ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002578 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002579
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002580 spin_lock_irqsave(&lp->lock, flags);
Don Fry4f1e5ba2007-10-17 17:06:19 -07002581 dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002582 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002583
Don Fry4f1e5ba2007-10-17 17:06:19 -07002584 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002585}
2586
2587/* taken from the sunlance driver, which it took from the depca driver */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002588static void pcnet32_load_multicast(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002589{
Don Fry1e56a4b2007-03-06 10:55:00 -08002590 struct pcnet32_private *lp = netdev_priv(dev);
Don Fry6ecb7662007-03-06 10:45:23 -08002591 volatile struct pcnet32_init_block *ib = lp->init_block;
Al Viro3e335452007-08-23 00:45:46 -04002592 volatile __le16 *mcast_table = (__le16 *)ib->filter;
Jiri Pirkof9dcbcc2010-02-23 09:19:49 +00002593 struct dev_mc_list *dmi;
Don Frydf27f4a2006-06-29 13:55:02 -07002594 unsigned long ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002595 char *addrs;
2596 int i;
2597 u32 crc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002599 /* set all multicast bits */
2600 if (dev->flags & IFF_ALLMULTI) {
Al Viro3e335452007-08-23 00:45:46 -04002601 ib->filter[0] = cpu_to_le32(~0U);
2602 ib->filter[1] = cpu_to_le32(~0U);
Don Frydf27f4a2006-06-29 13:55:02 -07002603 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff);
2604 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff);
2605 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff);
2606 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002607 return;
2608 }
2609 /* clear the multicast filter */
2610 ib->filter[0] = 0;
2611 ib->filter[1] = 0;
2612
2613 /* Add addresses */
Jiri Pirkof9dcbcc2010-02-23 09:19:49 +00002614 netdev_for_each_mc_addr(dmi, dev) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002615 addrs = dmi->dmi_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002616
2617 /* multicast address? */
2618 if (!(*addrs & 1))
2619 continue;
2620
2621 crc = ether_crc_le(6, addrs);
2622 crc = crc >> 26;
Al Viro3e335452007-08-23 00:45:46 -04002623 mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002624 }
Don Frydf27f4a2006-06-29 13:55:02 -07002625 for (i = 0; i < 4; i++)
2626 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i,
2627 le16_to_cpu(mcast_table[i]));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002628 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629}
2630
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631/*
2632 * Set or clear the multicast filter for this adaptor.
2633 */
2634static void pcnet32_set_multicast_list(struct net_device *dev)
2635{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002636 unsigned long ioaddr = dev->base_addr, flags;
Don Fry1e56a4b2007-03-06 10:55:00 -08002637 struct pcnet32_private *lp = netdev_priv(dev);
Don Frydf27f4a2006-06-29 13:55:02 -07002638 int csr15, suspended;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002639
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002640 spin_lock_irqsave(&lp->lock, flags);
Don Frydf27f4a2006-06-29 13:55:02 -07002641 suspended = pcnet32_suspend(dev, &flags, 0);
2642 csr15 = lp->a.read_csr(ioaddr, CSR15);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002643 if (dev->flags & IFF_PROMISC) {
2644 /* Log any net taps. */
Joe Perches13ff83b2010-02-15 08:34:25 +00002645 netif_info(lp, hw, dev, "Promiscuous mode enabled\n");
Don Fry6ecb7662007-03-06 10:45:23 -08002646 lp->init_block->mode =
Al Viro3e335452007-08-23 00:45:46 -04002647 cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) <<
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002648 7);
Don Frydf27f4a2006-06-29 13:55:02 -07002649 lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002650 } else {
Don Fry6ecb7662007-03-06 10:45:23 -08002651 lp->init_block->mode =
Al Viro3e335452007-08-23 00:45:46 -04002652 cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7);
Don Frydf27f4a2006-06-29 13:55:02 -07002653 lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002654 pcnet32_load_multicast(dev);
2655 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002656
Don Frydf27f4a2006-06-29 13:55:02 -07002657 if (suspended) {
2658 int csr5;
2659 /* clear SUSPEND (SPND) - CSR5 bit 0 */
2660 csr5 = lp->a.read_csr(ioaddr, CSR5);
2661 lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
Don Fryb368a3f2006-09-13 10:16:07 -07002662 } else {
Don Frydf27f4a2006-06-29 13:55:02 -07002663 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
2664 pcnet32_restart(dev, CSR0_NORMAL);
2665 netif_wake_queue(dev);
2666 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002668 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002669}
2670
2671/* This routine assumes that the lp->lock is held */
2672static int mdio_read(struct net_device *dev, int phy_id, int reg_num)
2673{
Don Fry1e56a4b2007-03-06 10:55:00 -08002674 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002675 unsigned long ioaddr = dev->base_addr;
2676 u16 val_out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002677
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002678 if (!lp->mii)
2679 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002681 lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
2682 val_out = lp->a.read_bcr(ioaddr, 34);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002684 return val_out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685}
2686
2687/* This routine assumes that the lp->lock is held */
2688static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val)
2689{
Don Fry1e56a4b2007-03-06 10:55:00 -08002690 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002691 unsigned long ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002692
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002693 if (!lp->mii)
2694 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002695
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002696 lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
2697 lp->a.write_bcr(ioaddr, 34, val);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002698}
2699
2700static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2701{
Don Fry1e56a4b2007-03-06 10:55:00 -08002702 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002703 int rc;
2704 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002705
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002706 /* SIOC[GS]MIIxxx ioctls */
2707 if (lp->mii) {
2708 spin_lock_irqsave(&lp->lock, flags);
2709 rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL);
2710 spin_unlock_irqrestore(&lp->lock, flags);
2711 } else {
2712 rc = -EOPNOTSUPP;
2713 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002714
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002715 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002716}
2717
Don Fryac62ef02006-03-20 15:26:03 -08002718static int pcnet32_check_otherphy(struct net_device *dev)
2719{
Don Fry1e56a4b2007-03-06 10:55:00 -08002720 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002721 struct mii_if_info mii = lp->mii_if;
2722 u16 bmcr;
2723 int i;
Don Fryac62ef02006-03-20 15:26:03 -08002724
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002725 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
2726 if (i == lp->mii_if.phy_id)
2727 continue; /* skip active phy */
2728 if (lp->phymask & (1 << i)) {
2729 mii.phy_id = i;
2730 if (mii_link_ok(&mii)) {
2731 /* found PHY with active link */
Joe Perches13ff83b2010-02-15 08:34:25 +00002732 netif_info(lp, link, dev, "Using PHY number %d\n",
2733 i);
Don Fryac62ef02006-03-20 15:26:03 -08002734
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002735 /* isolate inactive phy */
2736 bmcr =
2737 mdio_read(dev, lp->mii_if.phy_id, MII_BMCR);
2738 mdio_write(dev, lp->mii_if.phy_id, MII_BMCR,
2739 bmcr | BMCR_ISOLATE);
Don Fryac62ef02006-03-20 15:26:03 -08002740
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002741 /* de-isolate new phy */
2742 bmcr = mdio_read(dev, i, MII_BMCR);
2743 mdio_write(dev, i, MII_BMCR,
2744 bmcr & ~BMCR_ISOLATE);
Don Fryac62ef02006-03-20 15:26:03 -08002745
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002746 /* set new phy address */
2747 lp->mii_if.phy_id = i;
2748 return 1;
2749 }
2750 }
Don Fryac62ef02006-03-20 15:26:03 -08002751 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002752 return 0;
Don Fryac62ef02006-03-20 15:26:03 -08002753}
2754
2755/*
2756 * Show the status of the media. Similar to mii_check_media however it
2757 * correctly shows the link speed for all (tested) pcnet32 variants.
2758 * Devices with no mii just report link state without speed.
2759 *
2760 * Caller is assumed to hold and release the lp->lock.
2761 */
2762
2763static void pcnet32_check_media(struct net_device *dev, int verbose)
2764{
Don Fry1e56a4b2007-03-06 10:55:00 -08002765 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002766 int curr_link;
2767 int prev_link = netif_carrier_ok(dev) ? 1 : 0;
2768 u32 bcr9;
Don Fryac62ef02006-03-20 15:26:03 -08002769
Don Fryac62ef02006-03-20 15:26:03 -08002770 if (lp->mii) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002771 curr_link = mii_link_ok(&lp->mii_if);
Don Fryac62ef02006-03-20 15:26:03 -08002772 } else {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002773 ulong ioaddr = dev->base_addr; /* card base I/O address */
2774 curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
Don Fryac62ef02006-03-20 15:26:03 -08002775 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002776 if (!curr_link) {
2777 if (prev_link || verbose) {
2778 netif_carrier_off(dev);
Joe Perches13ff83b2010-02-15 08:34:25 +00002779 netif_info(lp, link, dev, "link down\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002780 }
2781 if (lp->phycount > 1) {
2782 curr_link = pcnet32_check_otherphy(dev);
2783 prev_link = 0;
2784 }
2785 } else if (verbose || !prev_link) {
2786 netif_carrier_on(dev);
2787 if (lp->mii) {
2788 if (netif_msg_link(lp)) {
2789 struct ethtool_cmd ecmd;
2790 mii_ethtool_gset(&lp->mii_if, &ecmd);
Joe Perches13ff83b2010-02-15 08:34:25 +00002791 netdev_info(dev, "link up, %sMbps, %s-duplex\n",
2792 (ecmd.speed == SPEED_100)
2793 ? "100" : "10",
2794 (ecmd.duplex == DUPLEX_FULL)
2795 ? "full" : "half");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002796 }
2797 bcr9 = lp->a.read_bcr(dev->base_addr, 9);
2798 if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) {
2799 if (lp->mii_if.full_duplex)
2800 bcr9 |= (1 << 0);
2801 else
2802 bcr9 &= ~(1 << 0);
2803 lp->a.write_bcr(dev->base_addr, 9, bcr9);
2804 }
2805 } else {
Joe Perches13ff83b2010-02-15 08:34:25 +00002806 netif_info(lp, link, dev, "link up\n");
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002807 }
2808 }
Don Fryac62ef02006-03-20 15:26:03 -08002809}
2810
2811/*
2812 * Check for loss of link and link establishment.
2813 * Can not use mii_check_media because it does nothing if mode is forced.
2814 */
2815
Linus Torvalds1da177e2005-04-16 15:20:36 -07002816static void pcnet32_watchdog(struct net_device *dev)
2817{
Don Fry1e56a4b2007-03-06 10:55:00 -08002818 struct pcnet32_private *lp = netdev_priv(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002819 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002820
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002821 /* Print the link status if it has changed */
2822 spin_lock_irqsave(&lp->lock, flags);
2823 pcnet32_check_media(dev, 0);
2824 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002825
Stephen Hemminger283a21d32009-01-08 11:17:13 -08002826 mod_timer(&lp->watchdog_timer, round_jiffies(PCNET32_WATCHDOG_TIMEOUT));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002827}
2828
Don Fry917270c2007-08-26 21:22:32 -07002829static int pcnet32_pm_suspend(struct pci_dev *pdev, pm_message_t state)
2830{
2831 struct net_device *dev = pci_get_drvdata(pdev);
2832
2833 if (netif_running(dev)) {
2834 netif_device_detach(dev);
2835 pcnet32_close(dev);
2836 }
2837 pci_save_state(pdev);
2838 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2839 return 0;
2840}
2841
2842static int pcnet32_pm_resume(struct pci_dev *pdev)
2843{
2844 struct net_device *dev = pci_get_drvdata(pdev);
2845
2846 pci_set_power_state(pdev, PCI_D0);
2847 pci_restore_state(pdev);
2848
2849 if (netif_running(dev)) {
2850 pcnet32_open(dev);
2851 netif_device_attach(dev);
2852 }
2853 return 0;
2854}
2855
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856static void __devexit pcnet32_remove_one(struct pci_dev *pdev)
2857{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002858 struct net_device *dev = pci_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002859
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002860 if (dev) {
Don Fry1e56a4b2007-03-06 10:55:00 -08002861 struct pcnet32_private *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002862
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002863 unregister_netdev(dev);
2864 pcnet32_free_ring(dev);
2865 release_region(dev->base_addr, PCNET32_TOTAL_SIZE);
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002866 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
Don Fry6ecb7662007-03-06 10:45:23 -08002867 lp->init_block, lp->init_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002868 free_netdev(dev);
2869 pci_disable_device(pdev);
2870 pci_set_drvdata(pdev, NULL);
2871 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002872}
2873
2874static struct pci_driver pcnet32_driver = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002875 .name = DRV_NAME,
2876 .probe = pcnet32_probe_pci,
2877 .remove = __devexit_p(pcnet32_remove_one),
2878 .id_table = pcnet32_pci_tbl,
Don Fry917270c2007-08-26 21:22:32 -07002879 .suspend = pcnet32_pm_suspend,
2880 .resume = pcnet32_pm_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002881};
2882
2883/* An additional parameter that may be passed in... */
2884static int debug = -1;
2885static int tx_start_pt = -1;
2886static int pcnet32_have_pci;
2887
2888module_param(debug, int, 0);
2889MODULE_PARM_DESC(debug, DRV_NAME " debug level");
2890module_param(max_interrupt_work, int, 0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002891MODULE_PARM_DESC(max_interrupt_work,
2892 DRV_NAME " maximum events handled per interrupt");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002893module_param(rx_copybreak, int, 0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002894MODULE_PARM_DESC(rx_copybreak,
2895 DRV_NAME " copy breakpoint for copy-only-tiny-frames");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002896module_param(tx_start_pt, int, 0);
2897MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)");
2898module_param(pcnet32vlb, int, 0);
2899MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)");
2900module_param_array(options, int, NULL, 0);
2901MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)");
2902module_param_array(full_duplex, int, NULL, 0);
2903MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)");
2904/* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */
2905module_param_array(homepna, int, NULL, 0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002906MODULE_PARM_DESC(homepna,
2907 DRV_NAME
2908 " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002909
2910MODULE_AUTHOR("Thomas Bogendoerfer");
2911MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards");
2912MODULE_LICENSE("GPL");
2913
2914#define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
2915
2916static int __init pcnet32_init_module(void)
2917{
Joe Perches13ff83b2010-02-15 08:34:25 +00002918 pr_info("%s", version);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002919
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002920 pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002921
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002922 if ((tx_start_pt >= 0) && (tx_start_pt <= 3))
2923 tx_start = tx_start_pt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002924
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002925 /* find the PCI devices */
Jeff Garzik29917622006-08-19 17:48:59 -04002926 if (!pci_register_driver(&pcnet32_driver))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002927 pcnet32_have_pci = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002928
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002929 /* should we find any remaining VLbus devices ? */
2930 if (pcnet32vlb)
Don Frydcaf9762006-06-29 13:52:29 -07002931 pcnet32_probe_vlbus(pcnet32_portlist);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002932
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002933 if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE))
Joe Perches13ff83b2010-02-15 08:34:25 +00002934 pr_info("%d cards_found\n", cards_found);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002935
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002936 return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002937}
2938
2939static void __exit pcnet32_cleanup_module(void)
2940{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002941 struct net_device *next_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002942
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002943 while (pcnet32_dev) {
Don Fry1e56a4b2007-03-06 10:55:00 -08002944 struct pcnet32_private *lp = netdev_priv(pcnet32_dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002945 next_dev = lp->next;
2946 unregister_netdev(pcnet32_dev);
2947 pcnet32_free_ring(pcnet32_dev);
2948 release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE);
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002949 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
Don Fry6ecb7662007-03-06 10:45:23 -08002950 lp->init_block, lp->init_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002951 free_netdev(pcnet32_dev);
2952 pcnet32_dev = next_dev;
2953 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002954
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002955 if (pcnet32_have_pci)
2956 pci_unregister_driver(&pcnet32_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002957}
2958
2959module_init(pcnet32_init_module);
2960module_exit(pcnet32_cleanup_module);
2961
2962/*
2963 * Local variables:
2964 * c-indent-level: 4
2965 * tab-width: 8
2966 * End:
2967 */