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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */
2/*
3 Written 1994, 1995,1996 by Bao C. Ha.
4
5 Copyright (C) 1994, 1995,1996 by Bao C. Ha.
6
7 This software may be used and distributed
8 according to the terms of the GNU General Public License,
9 incorporated herein by reference.
10
11 The author may be reached at bao.ha@srs.gov
12 or 418 Hastings Place, Martinez, GA 30907.
13
14 Things remaining to do:
15 Better record keeping of errors.
16 Eliminate transmit interrupt to reduce overhead.
17 Implement "concurrent processing". I won't be doing it!
18
19 Bugs:
20
21 If you have a problem of not detecting the 82595 during a
22 reboot (warm reset), disable the FLASH memory should fix it.
23 This is a compatibility hardware problem.
24
25 Versions:
26 0.13b basic ethtool support (aris, 09/13/2004)
27 0.13a in memory shortage, drop packets also in board
28 (Michael Westermann <mw@microdata-pos.de>, 07/30/2002)
29 0.13 irq sharing, rewrote probe function, fixed a nasty bug in
30 hardware_send_packet and a major cleanup (aris, 11/08/2001)
31 0.12d fixing a problem with single card detected as eight eth devices
32 fixing a problem with sudden drop in card performance
33 (chris (asdn@go2.pl), 10/29/2001)
34 0.12c fixing some problems with old cards (aris, 01/08/2001)
35 0.12b misc fixes (aris, 06/26/2000)
36 0.12a port of version 0.12a of 2.2.x kernels to 2.3.x
37 (aris (aris@conectiva.com.br), 05/19/2000)
38 0.11e some tweaks about multiple cards support (PdP, jul/aug 1999)
39 0.11d added __initdata, __init stuff; call spin_lock_init
40 in eepro_probe1. Replaced "eepro" by dev->name. Augmented
41 the code protected by spin_lock in interrupt routine
42 (PdP, 12/12/1998)
43 0.11c minor cleanup (PdP, RMC, 09/12/1998)
44 0.11b Pascal Dupuis (dupuis@lei.ucl.ac.be): works as a module
45 under 2.1.xx. Debug messages are flagged as KERN_DEBUG to
46 avoid console flooding. Added locking at critical parts. Now
47 the dawn thing is SMP safe.
48 0.11a Attempt to get 2.1.xx support up (RMC)
49 0.11 Brian Candler added support for multiple cards. Tested as
50 a module, no idea if it works when compiled into kernel.
51
52 0.10e Rick Bressler notified me that ifconfig up;ifconfig down fails
53 because the irq is lost somewhere. Fixed that by moving
54 request_irq and free_irq to eepro_open and eepro_close respectively.
55 0.10d Ugh! Now Wakeup works. Was seriously broken in my first attempt.
56 I'll need to find a way to specify an ioport other than
57 the default one in the PnP case. PnP definitively sucks.
58 And, yes, this is not the only reason.
59 0.10c PnP Wakeup Test for 595FX. uncomment #define PnPWakeup;
60 to use.
61 0.10b Should work now with (some) Pro/10+. At least for
62 me (and my two cards) it does. _No_ guarantee for
63 function with non-Pro/10+ cards! (don't have any)
64 (RMC, 9/11/96)
65
66 0.10 Added support for the Etherexpress Pro/10+. The
67 IRQ map was changed significantly from the old
68 pro/10. The new interrupt map was provided by
69 Rainer M. Canavan (Canavan@Zeus.cs.bonn.edu).
70 (BCH, 9/3/96)
71
72 0.09 Fixed a race condition in the transmit algorithm,
73 which causes crashes under heavy load with fast
74 pentium computers. The performance should also
75 improve a bit. The size of RX buffer, and hence
76 TX buffer, can also be changed via lilo or insmod.
77 (BCH, 7/31/96)
78
79 0.08 Implement 32-bit I/O for the 82595TX and 82595FX
80 based lan cards. Disable full-duplex mode if TPE
81 is not used. (BCH, 4/8/96)
82
83 0.07a Fix a stat report which counts every packet as a
84 heart-beat failure. (BCH, 6/3/95)
85
86 0.07 Modified to support all other 82595-based lan cards.
87 The IRQ vector of the EtherExpress Pro will be set
88 according to the value saved in the EEPROM. For other
89 cards, I will do autoirq_request() to grab the next
90 available interrupt vector. (BCH, 3/17/95)
91
92 0.06a,b Interim released. Minor changes in the comments and
93 print out format. (BCH, 3/9/95 and 3/14/95)
94
95 0.06 First stable release that I am comfortable with. (BCH,
96 3/2/95)
97
98 0.05 Complete testing of multicast. (BCH, 2/23/95)
99
100 0.04 Adding multicast support. (BCH, 2/14/95)
101
102 0.03 First widely alpha release for public testing.
103 (BCH, 2/14/95)
104
105*/
106
107static const char version[] =
108 "eepro.c: v0.13b 09/13/2004 aris@cathedrallabs.org\n";
109
110#include <linux/module.h>
111
112/*
113 Sources:
114
115 This driver wouldn't have been written without the availability
116 of the Crynwr's Lan595 driver source code. It helps me to
117 familiarize with the 82595 chipset while waiting for the Intel
118 documentation. I also learned how to detect the 82595 using
119 the packet driver's technique.
120
121 This driver is written by cutting and pasting the skeleton.c driver
122 provided by Donald Becker. I also borrowed the EEPROM routine from
123 Donald Becker's 82586 driver.
124
125 Datasheet for the Intel 82595 (including the TX and FX version). It
126 provides just enough info that the casual reader might think that it
127 documents the i82595.
128
129 The User Manual for the 82595. It provides a lot of the missing
130 information.
131
132*/
133
134#include <linux/kernel.h>
135#include <linux/types.h>
136#include <linux/fcntl.h>
137#include <linux/interrupt.h>
138#include <linux/ioport.h>
139#include <linux/in.h>
140#include <linux/slab.h>
141#include <linux/string.h>
142#include <linux/errno.h>
143#include <linux/netdevice.h>
144#include <linux/etherdevice.h>
145#include <linux/skbuff.h>
146#include <linux/spinlock.h>
147#include <linux/init.h>
148#include <linux/delay.h>
149#include <linux/bitops.h>
150#include <linux/ethtool.h>
151
152#include <asm/system.h>
153#include <asm/io.h>
154#include <asm/dma.h>
155
156#define DRV_NAME "eepro"
Andy Gospodarekd5b20692006-09-11 17:39:18 -0400157#define DRV_VERSION "0.13c"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
159#define compat_dev_kfree_skb( skb, mode ) dev_kfree_skb( (skb) )
160/* I had reports of looong delays with SLOW_DOWN defined as udelay(2) */
161#define SLOW_DOWN inb(0x80)
162/* udelay(2) */
163#define compat_init_data __initdata
164enum iftype { AUI=0, BNC=1, TPE=2 };
165
166/* First, a few definitions that the brave might change. */
167/* A zero-terminated list of I/O addresses to be probed. */
168static unsigned int eepro_portlist[] compat_init_data =
169 { 0x300, 0x210, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360, 0};
170/* note: 0x300 is default, the 595FX supports ALL IO Ports
171 from 0x000 to 0x3F0, some of which are reserved in PCs */
172
173/* To try the (not-really PnP Wakeup: */
174/*
175#define PnPWakeup
176*/
177
178/* use 0 for production, 1 for verification, >2 for debug */
179#ifndef NET_DEBUG
180#define NET_DEBUG 0
181#endif
182static unsigned int net_debug = NET_DEBUG;
183
184/* The number of low I/O ports used by the ethercard. */
185#define EEPRO_IO_EXTENT 16
186
187/* Different 82595 chips */
188#define LAN595 0
189#define LAN595TX 1
190#define LAN595FX 2
191#define LAN595FX_10ISA 3
192
193/* Information that need to be kept for each board. */
194struct eepro_local {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 unsigned rx_start;
196 unsigned tx_start; /* start of the transmit chain */
197 int tx_last; /* pointer to last packet in the transmit chain */
198 unsigned tx_end; /* end of the transmit chain (plus 1) */
199 int eepro; /* 1 for the EtherExpress Pro/10,
200 2 for the EtherExpress Pro/10+,
201 3 for the EtherExpress 10 (blue cards),
202 0 for other 82595-based lan cards. */
203 int version; /* a flag to indicate if this is a TX or FX
204 version of the 82595 chip. */
205 int stepping;
206
207 spinlock_t lock; /* Serializing lock */
208
209 unsigned rcv_ram; /* pre-calculated space for rx */
210 unsigned xmt_ram; /* pre-calculated space for tx */
211 unsigned char xmt_bar;
212 unsigned char xmt_lower_limit_reg;
213 unsigned char xmt_upper_limit_reg;
214 short xmt_lower_limit;
215 short xmt_upper_limit;
216 short rcv_lower_limit;
217 short rcv_upper_limit;
218 unsigned char eeprom_reg;
219 unsigned short word[8];
220};
221
222/* The station (ethernet) address prefix, used for IDing the board. */
223#define SA_ADDR0 0x00 /* Etherexpress Pro/10 */
224#define SA_ADDR1 0xaa
225#define SA_ADDR2 0x00
226
227#define GetBit(x,y) ((x & (1<<y))>>y)
228
229/* EEPROM Word 0: */
230#define ee_PnP 0 /* Plug 'n Play enable bit */
231#define ee_Word1 1 /* Word 1? */
232#define ee_BusWidth 2 /* 8/16 bit */
233#define ee_FlashAddr 3 /* Flash Address */
234#define ee_FlashMask 0x7 /* Mask */
235#define ee_AutoIO 6 /* */
236#define ee_reserved0 7 /* =0! */
237#define ee_Flash 8 /* Flash there? */
238#define ee_AutoNeg 9 /* Auto Negotiation enabled? */
239#define ee_IO0 10 /* IO Address LSB */
240#define ee_IO0Mask 0x /*...*/
241#define ee_IO1 15 /* IO MSB */
242
243/* EEPROM Word 1: */
244#define ee_IntSel 0 /* Interrupt */
245#define ee_IntMask 0x7
246#define ee_LI 3 /* Link Integrity 0= enabled */
247#define ee_PC 4 /* Polarity Correction 0= enabled */
248#define ee_TPE_AUI 5 /* PortSelection 1=TPE */
249#define ee_Jabber 6 /* Jabber prevention 0= enabled */
250#define ee_AutoPort 7 /* Auto Port Selection 1= Disabled */
251#define ee_SMOUT 8 /* SMout Pin Control 0= Input */
252#define ee_PROM 9 /* Flash EPROM / PROM 0=Flash */
253#define ee_reserved1 10 /* .. 12 =0! */
254#define ee_AltReady 13 /* Alternate Ready, 0=normal */
255#define ee_reserved2 14 /* =0! */
256#define ee_Duplex 15
257
258/* Word2,3,4: */
259#define ee_IA5 0 /*bit start for individual Addr Byte 5 */
260#define ee_IA4 8 /*bit start for individual Addr Byte 5 */
261#define ee_IA3 0 /*bit start for individual Addr Byte 5 */
262#define ee_IA2 8 /*bit start for individual Addr Byte 5 */
263#define ee_IA1 0 /*bit start for individual Addr Byte 5 */
264#define ee_IA0 8 /*bit start for individual Addr Byte 5 */
265
266/* Word 5: */
267#define ee_BNC_TPE 0 /* 0=TPE */
268#define ee_BootType 1 /* 00=None, 01=IPX, 10=ODI, 11=NDIS */
269#define ee_BootTypeMask 0x3
270#define ee_NumConn 3 /* Number of Connections 0= One or Two */
271#define ee_FlashSock 4 /* Presence of Flash Socket 0= Present */
272#define ee_PortTPE 5
273#define ee_PortBNC 6
274#define ee_PortAUI 7
275#define ee_PowerMgt 10 /* 0= disabled */
276#define ee_CP 13 /* Concurrent Processing */
277#define ee_CPMask 0x7
278
279/* Word 6: */
280#define ee_Stepping 0 /* Stepping info */
281#define ee_StepMask 0x0F
282#define ee_BoardID 4 /* Manucaturer Board ID, reserved */
283#define ee_BoardMask 0x0FFF
284
285/* Word 7: */
286#define ee_INT_TO_IRQ 0 /* int to IRQ Mapping = 0x1EB8 for Pro/10+ */
287#define ee_FX_INT2IRQ 0x1EB8 /* the _only_ mapping allowed for FX chips */
288
289/*..*/
290#define ee_SIZE 0x40 /* total EEprom Size */
291#define ee_Checksum 0xBABA /* initial and final value for adding checksum */
292
293
294/* Card identification via EEprom: */
295#define ee_addr_vendor 0x10 /* Word offset for EISA Vendor ID */
296#define ee_addr_id 0x11 /* Word offset for Card ID */
297#define ee_addr_SN 0x12 /* Serial Number */
298#define ee_addr_CRC_8 0x14 /* CRC over last thee Bytes */
299
300
301#define ee_vendor_intel0 0x25 /* Vendor ID Intel */
302#define ee_vendor_intel1 0xD4
303#define ee_id_eepro10p0 0x10 /* ID for eepro/10+ */
304#define ee_id_eepro10p1 0x31
305
306#define TX_TIMEOUT 40
307
308/* Index to functions, as function prototypes. */
309
310static int eepro_probe1(struct net_device *dev, int autoprobe);
311static int eepro_open(struct net_device *dev);
Stephen Hemminger613573252009-08-31 19:50:58 +0000312static netdev_tx_t eepro_send_packet(struct sk_buff *skb,
313 struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100314static irqreturn_t eepro_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315static void eepro_rx(struct net_device *dev);
316static void eepro_transmit_interrupt(struct net_device *dev);
317static int eepro_close(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318static void set_multicast_list(struct net_device *dev);
319static void eepro_tx_timeout (struct net_device *dev);
320
321static int read_eeprom(int ioaddr, int location, struct net_device *dev);
322static int hardware_send_packet(struct net_device *dev, void *buf, short length);
323static int eepro_grab_irq(struct net_device *dev);
324
325/*
326 Details of the i82595.
327
328You will need either the datasheet or the user manual to understand what
329is going on here. The 82595 is very different from the 82586, 82593.
330
331The receive algorithm in eepro_rx() is just an implementation of the
332RCV ring structure that the Intel 82595 imposes at the hardware level.
333The receive buffer is set at 24K, and the transmit buffer is 8K. I
334am assuming that the total buffer memory is 32K, which is true for the
335Intel EtherExpress Pro/10. If it is less than that on a generic card,
336the driver will be broken.
337
338The transmit algorithm in the hardware_send_packet() is similar to the
339one in the eepro_rx(). The transmit buffer is a ring linked list.
340I just queue the next available packet to the end of the list. In my
341system, the 82595 is so fast that the list seems to always contain a
342single packet. In other systems with faster computers and more congested
343network traffics, the ring linked list should improve performance by
344allowing up to 8K worth of packets to be queued.
345
346The sizes of the receive and transmit buffers can now be changed via lilo
347or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0"
348where rx-buffer is in KB unit. Modules uses the parameter mem which is
349also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer."
350The receive buffer has to be more than 3K or less than 29K. Otherwise,
351it is reset to the default of 24K, and, hence, 8K for the trasnmit
352buffer (transmit-buffer = 32K - receive-buffer).
353
354*/
355#define RAM_SIZE 0x8000
356
357#define RCV_HEADER 8
358#define RCV_DEFAULT_RAM 0x6000
359
360#define XMT_HEADER 8
361#define XMT_DEFAULT_RAM (RAM_SIZE - RCV_DEFAULT_RAM)
362
363#define XMT_START_PRO RCV_DEFAULT_RAM
364#define XMT_START_10 0x0000
365#define RCV_START_PRO 0x0000
366#define RCV_START_10 XMT_DEFAULT_RAM
367
368#define RCV_DONE 0x0008
369#define RX_OK 0x2000
370#define RX_ERROR 0x0d81
371
372#define TX_DONE_BIT 0x0080
373#define TX_OK 0x2000
374#define CHAIN_BIT 0x8000
375#define XMT_STATUS 0x02
376#define XMT_CHAIN 0x04
377#define XMT_COUNT 0x06
378
379#define BANK0_SELECT 0x00
380#define BANK1_SELECT 0x40
381#define BANK2_SELECT 0x80
382
383/* Bank 0 registers */
384#define COMMAND_REG 0x00 /* Register 0 */
385#define MC_SETUP 0x03
386#define XMT_CMD 0x04
387#define DIAGNOSE_CMD 0x07
388#define RCV_ENABLE_CMD 0x08
389#define RCV_DISABLE_CMD 0x0a
390#define STOP_RCV_CMD 0x0b
391#define RESET_CMD 0x0e
392#define POWER_DOWN_CMD 0x18
393#define RESUME_XMT_CMD 0x1c
394#define SEL_RESET_CMD 0x1e
395#define STATUS_REG 0x01 /* Register 1 */
396#define RX_INT 0x02
397#define TX_INT 0x04
398#define EXEC_STATUS 0x30
399#define ID_REG 0x02 /* Register 2 */
400#define R_ROBIN_BITS 0xc0 /* round robin counter */
401#define ID_REG_MASK 0x2c
402#define ID_REG_SIG 0x24
403#define AUTO_ENABLE 0x10
404#define INT_MASK_REG 0x03 /* Register 3 */
405#define RX_STOP_MASK 0x01
406#define RX_MASK 0x02
407#define TX_MASK 0x04
408#define EXEC_MASK 0x08
409#define ALL_MASK 0x0f
410#define IO_32_BIT 0x10
411#define RCV_BAR 0x04 /* The following are word (16-bit) registers */
412#define RCV_STOP 0x06
413
414#define XMT_BAR_PRO 0x0a
415#define XMT_BAR_10 0x0b
416
417#define HOST_ADDRESS_REG 0x0c
418#define IO_PORT 0x0e
419#define IO_PORT_32_BIT 0x0c
420
421/* Bank 1 registers */
422#define REG1 0x01
423#define WORD_WIDTH 0x02
424#define INT_ENABLE 0x80
425#define INT_NO_REG 0x02
426#define RCV_LOWER_LIMIT_REG 0x08
427#define RCV_UPPER_LIMIT_REG 0x09
428
429#define XMT_LOWER_LIMIT_REG_PRO 0x0a
430#define XMT_UPPER_LIMIT_REG_PRO 0x0b
431#define XMT_LOWER_LIMIT_REG_10 0x0b
432#define XMT_UPPER_LIMIT_REG_10 0x0a
433
434/* Bank 2 registers */
435#define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */
436#define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */
437#define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */
438#define REG2 0x02
439#define PRMSC_Mode 0x01
440#define Multi_IA 0x20
441#define REG3 0x03
442#define TPE_BIT 0x04
443#define BNC_BIT 0x20
444#define REG13 0x0d
445#define FDX 0x00
446#define A_N_ENABLE 0x02
447
448#define I_ADD_REG0 0x04
449#define I_ADD_REG1 0x05
450#define I_ADD_REG2 0x06
451#define I_ADD_REG3 0x07
452#define I_ADD_REG4 0x08
453#define I_ADD_REG5 0x09
454
455#define EEPROM_REG_PRO 0x0a
456#define EEPROM_REG_10 0x0b
457
458#define EESK 0x01
459#define EECS 0x02
460#define EEDI 0x04
461#define EEDO 0x08
462
463/* do a full reset */
464#define eepro_reset(ioaddr) outb(RESET_CMD, ioaddr)
465
466/* do a nice reset */
467#define eepro_sel_reset(ioaddr) { \
468 outb(SEL_RESET_CMD, ioaddr); \
469 SLOW_DOWN; \
470 SLOW_DOWN; \
471 }
472
473/* disable all interrupts */
474#define eepro_dis_int(ioaddr) outb(ALL_MASK, ioaddr + INT_MASK_REG)
475
476/* clear all interrupts */
477#define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG)
478
479/* enable tx/rx */
480#define eepro_en_int(ioaddr) outb(ALL_MASK & ~(RX_MASK | TX_MASK), \
481 ioaddr + INT_MASK_REG)
482
483/* enable exec event interrupt */
484#define eepro_en_intexec(ioaddr) outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG)
485
486/* enable rx */
487#define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr)
488
489/* disable rx */
490#define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr)
491
492/* switch bank */
493#define eepro_sw2bank0(ioaddr) outb(BANK0_SELECT, ioaddr)
494#define eepro_sw2bank1(ioaddr) outb(BANK1_SELECT, ioaddr)
495#define eepro_sw2bank2(ioaddr) outb(BANK2_SELECT, ioaddr)
496
497/* enable interrupt line */
498#define eepro_en_intline(ioaddr) outb(inb(ioaddr + REG1) | INT_ENABLE,\
499 ioaddr + REG1)
500
501/* disable interrupt line */
502#define eepro_dis_intline(ioaddr) outb(inb(ioaddr + REG1) & 0x7f, \
503 ioaddr + REG1);
504
505/* set diagnose flag */
506#define eepro_diag(ioaddr) outb(DIAGNOSE_CMD, ioaddr)
507
508/* ack for rx int */
509#define eepro_ack_rx(ioaddr) outb (RX_INT, ioaddr + STATUS_REG)
510
511/* ack for tx int */
512#define eepro_ack_tx(ioaddr) outb (TX_INT, ioaddr + STATUS_REG)
513
514/* a complete sel reset */
515#define eepro_complete_selreset(ioaddr) { \
Jeff Garzik09f75cd2007-10-03 17:41:50 -0700516 dev->stats.tx_errors++;\
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517 eepro_sel_reset(ioaddr);\
518 lp->tx_end = \
519 lp->xmt_lower_limit;\
520 lp->tx_start = lp->tx_end;\
521 lp->tx_last = 0;\
522 dev->trans_start = jiffies;\
523 netif_wake_queue(dev);\
524 eepro_en_rx(ioaddr);\
525 }
526
527/* Check for a network adaptor of this type, and return '0' if one exists.
528 If dev->base_addr == 0, probe all likely locations.
529 If dev->base_addr == 1, always return failure.
530 If dev->base_addr == 2, allocate space for the device and return success
531 (detachable devices only).
532 */
533static int __init do_eepro_probe(struct net_device *dev)
534{
535 int i;
536 int base_addr = dev->base_addr;
537 int irq = dev->irq;
538
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539#ifdef PnPWakeup
540 /* XXXX for multiple cards should this only be run once? */
541
542 /* Wakeup: */
543 #define WakeupPort 0x279
544 #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\
545 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\
546 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\
547 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43}
548
549 {
550 unsigned short int WS[32]=WakeupSeq;
551
Jeff Garzikd61780c2005-10-30 15:01:51 -0800552 if (request_region(WakeupPort, 2, "eepro wakeup")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 if (net_debug>5)
554 printk(KERN_DEBUG "Waking UP\n");
555
556 outb_p(0,WakeupPort);
557 outb_p(0,WakeupPort);
558 for (i=0; i<32; i++) {
559 outb_p(WS[i],WakeupPort);
560 if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]);
561 }
Jeff Garzikd61780c2005-10-30 15:01:51 -0800562
563 release_region(WakeupPort, 2);
564 } else
565 printk(KERN_WARNING "PnP wakeup region busy!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 }
567#endif
568
569 if (base_addr > 0x1ff) /* Check a single specified location. */
570 return eepro_probe1(dev, 0);
571
572 else if (base_addr != 0) /* Don't probe at all. */
573 return -ENXIO;
574
575 for (i = 0; eepro_portlist[i]; i++) {
576 dev->base_addr = eepro_portlist[i];
577 dev->irq = irq;
578 if (eepro_probe1(dev, 1) == 0)
579 return 0;
580 }
581
582 return -ENODEV;
583}
584
585#ifndef MODULE
586struct net_device * __init eepro_probe(int unit)
587{
588 struct net_device *dev = alloc_etherdev(sizeof(struct eepro_local));
589 int err;
590
591 if (!dev)
592 return ERR_PTR(-ENODEV);
593
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 sprintf(dev->name, "eth%d", unit);
595 netdev_boot_setup_check(dev);
596
597 err = do_eepro_probe(dev);
598 if (err)
599 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 return dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601out:
602 free_netdev(dev);
603 return ERR_PTR(err);
604}
605#endif
606
607static void __init printEEPROMInfo(struct net_device *dev)
608{
Wang Chen4cf16532008-11-12 23:38:14 -0800609 struct eepro_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 int ioaddr = dev->base_addr;
611 unsigned short Word;
612 int i,j;
613
614 j = ee_Checksum;
615 for (i = 0; i < 8; i++)
616 j += lp->word[i];
617 for ( ; i < ee_SIZE; i++)
618 j += read_eeprom(ioaddr, i, dev);
619
620 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
621
622 Word = lp->word[0];
623 printk(KERN_DEBUG "Word0:\n");
624 printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP));
625 printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 );
626 printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg));
627 printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4);
628
629 if (net_debug>4) {
630 Word = lp->word[1];
631 printk(KERN_DEBUG "Word1:\n");
632 printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask);
633 printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI));
634 printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC));
635 printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI));
636 printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber));
Harvey Harrison4e5b8642008-04-26 23:44:03 -0700637 printk(KERN_DEBUG " AutoPort: %d\n", !GetBit(Word,ee_AutoPort));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
639 }
640
641 Word = lp->word[5];
642 printk(KERN_DEBUG "Word5:\n");
643 printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE));
644 printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn));
645 printk(KERN_DEBUG " Has ");
646 if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE ");
647 if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC ");
648 if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI ");
649 printk(KERN_DEBUG "port(s) \n");
650
651 Word = lp->word[6];
652 printk(KERN_DEBUG "Word6:\n");
653 printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask);
654 printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID);
655
656 Word = lp->word[7];
657 printk(KERN_DEBUG "Word7:\n");
658 printk(KERN_DEBUG " INT to IRQ:\n");
659
660 for (i=0, j=0; i<15; i++)
661 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
662
663 printk(KERN_DEBUG "\n");
664}
665
666/* function to recalculate the limits of buffer based on rcv_ram */
667static void eepro_recalc (struct net_device *dev)
668{
669 struct eepro_local * lp;
670
671 lp = netdev_priv(dev);
672 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
673
674 if (lp->eepro == LAN595FX_10ISA) {
675 lp->xmt_lower_limit = XMT_START_10;
676 lp->xmt_upper_limit = (lp->xmt_ram - 2);
677 lp->rcv_lower_limit = lp->xmt_ram;
678 lp->rcv_upper_limit = (RAM_SIZE - 2);
679 }
680 else {
681 lp->rcv_lower_limit = RCV_START_PRO;
682 lp->rcv_upper_limit = (lp->rcv_ram - 2);
683 lp->xmt_lower_limit = lp->rcv_ram;
684 lp->xmt_upper_limit = (RAM_SIZE - 2);
685 }
686}
687
688/* prints boot-time info */
689static void __init eepro_print_info (struct net_device *dev)
690{
691 struct eepro_local * lp = netdev_priv(dev);
692 int i;
693 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
694
695 i = inb(dev->base_addr + ID_REG);
696 printk(KERN_DEBUG " id: %#x ",i);
697 printk(" io: %#x ", (unsigned)dev->base_addr);
698
699 switch (lp->eepro) {
700 case LAN595FX_10ISA:
701 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
702 dev->name, (unsigned)dev->base_addr);
703 break;
704 case LAN595FX:
Jeff Garzikd61780c2005-10-30 15:01:51 -0800705 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 dev->name, (unsigned)dev->base_addr);
707 break;
708 case LAN595TX:
709 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
710 dev->name, (unsigned)dev->base_addr);
711 break;
712 case LAN595:
Jeff Garzikd61780c2005-10-30 15:01:51 -0800713 printk("%s: Intel 82595-based lan card at %#x,",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 dev->name, (unsigned)dev->base_addr);
Joe Perches0795af52007-10-03 17:59:30 -0700715 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 }
717
Johannes Berge1749612008-10-27 15:59:26 -0700718 printk(" %pM", dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719
720 if (net_debug > 3)
721 printk(KERN_DEBUG ", %dK RCV buffer",
722 (int)(lp->rcv_ram)/1024);
723
724 if (dev->irq > 2)
725 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
Jeff Garzikd61780c2005-10-30 15:01:51 -0800726 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 printk(", %s.\n", ifmap[dev->if_port]);
728
729 if (net_debug > 3) {
730 i = lp->word[5];
731 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
732 printk(KERN_DEBUG "%s: Concurrent Processing is "
733 "enabled but not used!\n", dev->name);
734 }
735
736 /* Check the station address for the manufacturer's code */
737 if (net_debug>3)
738 printEEPROMInfo(dev);
739}
740
Jeff Garzik7282d492006-09-13 14:30:00 -0400741static const struct ethtool_ops eepro_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742
Stephen Hemminger8afb1ce2009-03-26 15:11:35 +0000743static const struct net_device_ops eepro_netdev_ops = {
744 .ndo_open = eepro_open,
745 .ndo_stop = eepro_close,
746 .ndo_start_xmit = eepro_send_packet,
747 .ndo_set_multicast_list = set_multicast_list,
748 .ndo_tx_timeout = eepro_tx_timeout,
749 .ndo_change_mtu = eth_change_mtu,
750 .ndo_set_mac_address = eth_mac_addr,
751 .ndo_validate_addr = eth_validate_addr,
752};
753
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754/* This is the real probe routine. Linux has a history of friendly device
755 probes on the ISA bus. A good device probe avoids doing writes, and
756 verifies that the correct device exists and functions. */
757
758static int __init eepro_probe1(struct net_device *dev, int autoprobe)
759{
760 unsigned short station_addr[3], id, counter;
761 int i;
762 struct eepro_local *lp;
763 int ioaddr = dev->base_addr;
b1fc5502005-05-12 20:11:55 -0400764 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765
766 /* Grab the region so we can find another board if autoIRQ fails. */
Jeff Garzikd61780c2005-10-30 15:01:51 -0800767 if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768 if (!autoprobe)
769 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
770 ioaddr);
771 return -EBUSY;
772 }
773
774 /* Now, we are going to check for the signature of the
775 ID_REG (register 2 of bank 0) */
776
777 id = inb(ioaddr + ID_REG);
778
779 if ((id & ID_REG_MASK) != ID_REG_SIG)
780 goto exit;
781
782 /* We seem to have the 82595 signature, let's
783 play with its counter (last 2 bits of
784 register 2 of bank 0) to be sure. */
785
786 counter = id & R_ROBIN_BITS;
787
788 if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40))
789 goto exit;
790
791 lp = netdev_priv(dev);
792 memset(lp, 0, sizeof(struct eepro_local));
793 lp->xmt_bar = XMT_BAR_PRO;
794 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
795 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
796 lp->eeprom_reg = EEPROM_REG_PRO;
797 spin_lock_init(&lp->lock);
798
799 /* Now, get the ethernet hardware address from
800 the EEPROM */
801 station_addr[0] = read_eeprom(ioaddr, 2, dev);
802
803 /* FIXME - find another way to know that we've found
804 * an Etherexpress 10
805 */
806 if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) {
807 lp->eepro = LAN595FX_10ISA;
808 lp->eeprom_reg = EEPROM_REG_10;
809 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
810 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
811 lp->xmt_bar = XMT_BAR_10;
812 station_addr[0] = read_eeprom(ioaddr, 2, dev);
813 }
814
815 /* get all words at once. will be used here and for ethtool */
816 for (i = 0; i < 8; i++) {
817 lp->word[i] = read_eeprom(ioaddr, i, dev);
818 }
819 station_addr[1] = lp->word[3];
820 station_addr[2] = lp->word[4];
821
822 if (!lp->eepro) {
823 if (lp->word[7] == ee_FX_INT2IRQ)
824 lp->eepro = 2;
825 else if (station_addr[2] == SA_ADDR1)
826 lp->eepro = 1;
827 }
828
829 /* Fill in the 'dev' fields. */
830 for (i=0; i < 6; i++)
831 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
832
833 /* RX buffer must be more than 3K and less than 29K */
834 if (dev->mem_end < 3072 || dev->mem_end > 29696)
835 lp->rcv_ram = RCV_DEFAULT_RAM;
836
837 /* calculate {xmt,rcv}_{lower,upper}_limit */
838 eepro_recalc(dev);
839
840 if (GetBit(lp->word[5], ee_BNC_TPE))
841 dev->if_port = BNC;
842 else
843 dev->if_port = TPE;
844
845 if (dev->irq < 2 && lp->eepro != 0) {
846 /* Mask off INT number */
847 int count = lp->word[1] & 7;
848 unsigned irqMask = lp->word[7];
Jeff Garzikd61780c2005-10-30 15:01:51 -0800849
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 while (count--)
851 irqMask &= irqMask - 1;
Jeff Garzikd61780c2005-10-30 15:01:51 -0800852
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853 count = ffs(irqMask);
Jeff Garzikd61780c2005-10-30 15:01:51 -0800854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 if (count)
856 dev->irq = count - 1;
Jeff Garzikd61780c2005-10-30 15:01:51 -0800857
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 if (dev->irq < 2) {
859 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
860 goto exit;
861 } else if (dev->irq == 2) {
862 dev->irq = 9;
863 }
864 }
Jeff Garzikd61780c2005-10-30 15:01:51 -0800865
Stephen Hemminger8afb1ce2009-03-26 15:11:35 +0000866 dev->netdev_ops = &eepro_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 dev->watchdog_timeo = TX_TIMEOUT;
868 dev->ethtool_ops = &eepro_ethtool_ops;
Jeff Garzikd61780c2005-10-30 15:01:51 -0800869
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 /* print boot time info */
871 eepro_print_info(dev);
872
873 /* reset 82595 */
874 eepro_reset(ioaddr);
b1fc5502005-05-12 20:11:55 -0400875
876 err = register_netdev(dev);
877 if (err)
878 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 return 0;
880exit:
b1fc5502005-05-12 20:11:55 -0400881 err = -ENODEV;
882err:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 release_region(dev->base_addr, EEPRO_IO_EXTENT);
b1fc5502005-05-12 20:11:55 -0400884 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885}
886
887/* Open/initialize the board. This is called (in the current kernel)
888 sometime after booting when the 'ifconfig' program is run.
889
890 This routine should set everything up anew at each open, even
891 registers that "should" only need to be set once at boot, so that
892 there is non-reboot way to recover if something goes wrong.
893 */
894
895static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
896static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
897static int eepro_grab_irq(struct net_device *dev)
898{
899 int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
900 int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
901
902 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
903
904 /* Enable the interrupt line. */
905 eepro_en_intline(ioaddr);
906
907 /* be CAREFUL, BANK 0 now */
908 eepro_sw2bank0(ioaddr);
909
910 /* clear all interrupts */
911 eepro_clear_int(ioaddr);
912
913 /* Let EXEC event to interrupt */
914 eepro_en_intexec(ioaddr);
915
916 do {
917 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
918
919 temp_reg = inb(ioaddr + INT_NO_REG);
920 outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
921
922 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
923
Thomas Gleixner1fb9df52006-07-01 19:29:39 -0700924 if (request_irq (*irqp, NULL, IRQF_SHARED, "bogus", dev) != EBUSY) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 unsigned long irq_mask;
926 /* Twinkle the interrupt, and check if it's seen */
927 irq_mask = probe_irq_on();
928
929 eepro_diag(ioaddr); /* RESET the 82595 */
930 mdelay(20);
931
932 if (*irqp == probe_irq_off(irq_mask)) /* It's a good IRQ line */
933 break;
934
935 /* clear all interrupts */
936 eepro_clear_int(ioaddr);
937 }
938 } while (*++irqp);
939
940 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
941
942 /* Disable the physical interrupt line. */
943 eepro_dis_intline(ioaddr);
944
945 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
946
947 /* Mask all the interrupts. */
948 eepro_dis_int(ioaddr);
949
950 /* clear all interrupts */
951 eepro_clear_int(ioaddr);
952
953 return dev->irq;
954}
955
956static int eepro_open(struct net_device *dev)
957{
958 unsigned short temp_reg, old8, old9;
959 int irqMask;
960 int i, ioaddr = dev->base_addr;
961 struct eepro_local *lp = netdev_priv(dev);
962
963 if (net_debug > 3)
964 printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name);
965
966 irqMask = lp->word[7];
967
968 if (lp->eepro == LAN595FX_10ISA) {
969 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n");
970 }
971 else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */
972 {
973 lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
974 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n");
975 }
976
977 else if ((dev->dev_addr[0] == SA_ADDR0 &&
978 dev->dev_addr[1] == SA_ADDR1 &&
979 dev->dev_addr[2] == SA_ADDR2))
980 {
981 lp->eepro = 1;
982 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n");
983 } /* Yes, an Intel EtherExpress Pro/10 */
984
985 else lp->eepro = 0; /* No, it is a generic 82585 lan card */
986
987 /* Get the interrupt vector for the 82595 */
988 if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
989 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
990 return -EAGAIN;
991 }
992
Joe Perchesa0607fd2009-11-18 23:29:17 -0800993 if (request_irq(dev->irq , eepro_interrupt, 0, dev->name, dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
995 return -EAGAIN;
996 }
997
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998 /* Initialize the 82595. */
999
1000 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1001 temp_reg = inb(ioaddr + lp->eeprom_reg);
1002
1003 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
1004
1005 if (net_debug > 3)
1006 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
1007
1008 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
1009 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
1010 for (i=0; i < 6; i++)
1011 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
1012
1013 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
1014 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1015 | RCV_Discard_BadFrame, ioaddr + REG1);
1016
1017 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1018 outb(temp_reg | 0x14, ioaddr + REG2);
1019
1020 temp_reg = inb(ioaddr + REG3);
1021 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1022
1023 /* Set the receiving mode */
1024 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1025
1026 /* Set the interrupt vector */
1027 temp_reg = inb(ioaddr + INT_NO_REG);
1028 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1029 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1030 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1031
1032
1033 temp_reg = inb(ioaddr + INT_NO_REG);
1034 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1035 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1036 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1037
1038 if (net_debug > 3)
1039 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1040
1041
1042 /* Initialize the RCV and XMT upper and lower limits */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001043 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1044 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1046 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1047
1048 /* Enable the interrupt line. */
1049 eepro_en_intline(ioaddr);
1050
1051 /* Switch back to Bank 0 */
1052 eepro_sw2bank0(ioaddr);
1053
1054 /* Let RX and TX events to interrupt */
1055 eepro_en_int(ioaddr);
1056
1057 /* clear all interrupts */
1058 eepro_clear_int(ioaddr);
1059
1060 /* Initialize RCV */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001061 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 lp->rx_start = lp->rcv_lower_limit;
Jeff Garzikd61780c2005-10-30 15:01:51 -08001063 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
1065 /* Initialize XMT */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001066 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1068 lp->tx_last = 0;
1069
1070 /* Check for the i82595TX and i82595FX */
1071 old8 = inb(ioaddr + 8);
1072 outb(~old8, ioaddr + 8);
1073
1074 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1075 if (net_debug > 3)
1076 printk(KERN_DEBUG "i82595 detected!\n");
1077 lp->version = LAN595;
1078 }
1079 else {
1080 lp->version = LAN595TX;
1081 outb(old8, ioaddr + 8);
1082 old9 = inb(ioaddr + 9);
1083
1084 if (irqMask==ee_FX_INT2IRQ) {
1085 if (net_debug > 3) {
1086 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1087 printk(KERN_DEBUG "i82595FX detected!\n");
1088 }
1089 lp->version = LAN595FX;
1090 outb(old9, ioaddr + 9);
1091 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1092 problem of using Pentiums and
1093 pro/10 w/ BNC. */
1094 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1095 temp_reg = inb(ioaddr + REG13);
1096 /* disable the full duplex mode since it is not
1097 applicable with the 10Base2 cable. */
1098 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1099 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1100 }
1101 }
1102 else if (net_debug > 3) {
1103 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1104 printk(KERN_DEBUG "i82595TX detected!\n");
1105 }
1106 }
1107
1108 eepro_sel_reset(ioaddr);
1109
1110 netif_start_queue(dev);
1111
1112 if (net_debug > 3)
1113 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1114
1115 /* enabling rx */
1116 eepro_en_rx(ioaddr);
1117
1118 return 0;
1119}
1120
1121static void eepro_tx_timeout (struct net_device *dev)
1122{
1123 struct eepro_local *lp = netdev_priv(dev);
1124 int ioaddr = dev->base_addr;
1125
1126 /* if (net_debug > 1) */
1127 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1128 "network cable problem");
1129 /* This is not a duplicate. One message for the console,
Michael Opdenacker59c51592007-05-09 08:57:56 +02001130 one for the log file */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1132 "network cable problem");
1133 eepro_complete_selreset(ioaddr);
1134}
1135
1136
Stephen Hemminger613573252009-08-31 19:50:58 +00001137static netdev_tx_t eepro_send_packet(struct sk_buff *skb,
1138 struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139{
1140 struct eepro_local *lp = netdev_priv(dev);
1141 unsigned long flags;
1142 int ioaddr = dev->base_addr;
1143 short length = skb->len;
1144
1145 if (net_debug > 5)
1146 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1147
1148 if (length < ETH_ZLEN) {
Herbert Xu5b057c62006-06-23 02:06:41 -07001149 if (skb_padto(skb, ETH_ZLEN))
Patrick McHardy6ed10652009-06-23 06:03:08 +00001150 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 length = ETH_ZLEN;
1152 }
1153 netif_stop_queue (dev);
1154
1155 eepro_dis_int(ioaddr);
1156 spin_lock_irqsave(&lp->lock, flags);
1157
1158 {
1159 unsigned char *buf = skb->data;
1160
1161 if (hardware_send_packet(dev, buf, length))
1162 /* we won't wake queue here because we're out of space */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001163 dev->stats.tx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 else {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001165 dev->stats.tx_bytes+=skb->len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166 dev->trans_start = jiffies;
1167 netif_wake_queue(dev);
1168 }
1169
1170 }
1171
1172 dev_kfree_skb (skb);
1173
1174 /* You might need to clean up and record Tx statistics here. */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001175 /* dev->stats.tx_aborted_errors++; */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176
1177 if (net_debug > 5)
1178 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1179
1180 eepro_en_int(ioaddr);
1181 spin_unlock_irqrestore(&lp->lock, flags);
1182
Patrick McHardy6ed10652009-06-23 06:03:08 +00001183 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184}
1185
1186
1187/* The typical workload of the driver:
1188 Handle the network interface interrupts. */
1189
1190static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01001191eepro_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192{
Jeff Garzikc31f28e2006-10-06 14:56:04 -04001193 struct net_device *dev = dev_id;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194 struct eepro_local *lp;
1195 int ioaddr, status, boguscount = 20;
1196 int handled = 0;
1197
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198 lp = netdev_priv(dev);
1199
1200 spin_lock(&lp->lock);
1201
1202 if (net_debug > 5)
1203 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1204
1205 ioaddr = dev->base_addr;
1206
1207 while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--))
1208 {
1209 handled = 1;
1210 if (status & RX_INT) {
1211 if (net_debug > 4)
1212 printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name);
1213
1214 eepro_dis_int(ioaddr);
1215
1216 /* Get the received packets */
1217 eepro_ack_rx(ioaddr);
1218 eepro_rx(dev);
1219
1220 eepro_en_int(ioaddr);
1221 }
1222 if (status & TX_INT) {
1223 if (net_debug > 4)
1224 printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name);
1225
1226
1227 eepro_dis_int(ioaddr);
1228
1229 /* Process the status of transmitted packets */
1230 eepro_ack_tx(ioaddr);
1231 eepro_transmit_interrupt(dev);
1232
1233 eepro_en_int(ioaddr);
1234 }
1235 }
1236
1237 if (net_debug > 5)
1238 printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
1239
1240 spin_unlock(&lp->lock);
1241 return IRQ_RETVAL(handled);
1242}
1243
1244static int eepro_close(struct net_device *dev)
1245{
1246 struct eepro_local *lp = netdev_priv(dev);
1247 int ioaddr = dev->base_addr;
1248 short temp_reg;
1249
1250 netif_stop_queue(dev);
1251
1252 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
1253
1254 /* Disable the physical interrupt line. */
1255 temp_reg = inb(ioaddr + REG1);
1256 outb(temp_reg & 0x7f, ioaddr + REG1);
1257
1258 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
1259
1260 /* Flush the Tx and disable Rx. */
1261 outb(STOP_RCV_CMD, ioaddr);
1262 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1263 lp->tx_last = 0;
1264
1265 /* Mask all the interrupts. */
1266 eepro_dis_int(ioaddr);
1267
1268 /* clear all interrupts */
1269 eepro_clear_int(ioaddr);
1270
1271 /* Reset the 82595 */
1272 eepro_reset(ioaddr);
1273
1274 /* release the interrupt */
1275 free_irq(dev->irq, dev);
1276
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 /* Update the statistics here. What statistics? */
1278
1279 return 0;
1280}
1281
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282/* Set or clear the multicast filter for this adaptor.
1283 */
1284static void
1285set_multicast_list(struct net_device *dev)
1286{
1287 struct eepro_local *lp = netdev_priv(dev);
1288 short ioaddr = dev->base_addr;
1289 unsigned short mode;
1290 struct dev_mc_list *dmi=dev->mc_list;
1291
1292 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1293 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1295 mode = inb(ioaddr + REG2);
1296 outb(mode | PRMSC_Mode, ioaddr + REG2);
1297 mode = inb(ioaddr + REG3);
1298 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1299 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300 }
1301
1302 else if (dev->mc_count==0 )
1303 {
1304 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1305 mode = inb(ioaddr + REG2);
1306 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
1307 mode = inb(ioaddr + REG3);
1308 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1309 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1310 }
1311
1312 else
1313 {
1314 unsigned short status, *eaddrs;
1315 int i, boguscount = 0;
1316
1317 /* Disable RX and TX interrupts. Necessary to avoid
1318 corruption of the HOST_ADDRESS_REG by interrupt
1319 service routines. */
1320 eepro_dis_int(ioaddr);
1321
1322 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1323 mode = inb(ioaddr + REG2);
1324 outb(mode | Multi_IA, ioaddr + REG2);
1325 mode = inb(ioaddr + REG3);
1326 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1327 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1328 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1329 outw(MC_SETUP, ioaddr + IO_PORT);
1330 outw(0, ioaddr + IO_PORT);
1331 outw(0, ioaddr + IO_PORT);
1332 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1333
1334 for (i = 0; i < dev->mc_count; i++)
1335 {
1336 eaddrs=(unsigned short *)dmi->dmi_addr;
1337 dmi=dmi->next;
1338 outw(*eaddrs++, ioaddr + IO_PORT);
1339 outw(*eaddrs++, ioaddr + IO_PORT);
1340 outw(*eaddrs++, ioaddr + IO_PORT);
1341 }
1342
1343 eaddrs = (unsigned short *) dev->dev_addr;
1344 outw(eaddrs[0], ioaddr + IO_PORT);
1345 outw(eaddrs[1], ioaddr + IO_PORT);
1346 outw(eaddrs[2], ioaddr + IO_PORT);
1347 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1348 outb(MC_SETUP, ioaddr);
1349
1350 /* Update the transmit queue */
1351 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1352
1353 if (lp->tx_start != lp->tx_end)
1354 {
1355 /* update the next address and the chain bit in the
1356 last packet */
1357 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1358 outw(i, ioaddr + IO_PORT);
1359 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1360 status = inw(ioaddr + IO_PORT);
1361 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1362 lp->tx_end = i ;
1363 }
1364 else {
1365 lp->tx_start = lp->tx_end = i ;
1366 }
1367
1368 /* Acknowledge that the MC setup is done */
1369 do { /* We should be doing this in the eepro_interrupt()! */
1370 SLOW_DOWN;
1371 SLOW_DOWN;
1372 if (inb(ioaddr + STATUS_REG) & 0x08)
1373 {
1374 i = inb(ioaddr);
1375 outb(0x08, ioaddr + STATUS_REG);
1376
1377 if (i & 0x20) { /* command ABORTed */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001378 printk(KERN_NOTICE "%s: multicast setup failed.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 dev->name);
1380 break;
1381 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1382 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1383 dev->name, dev->mc_count,
1384 dev->mc_count > 1 ? "es":"");
1385 break;
1386 }
1387 }
1388 } while (++boguscount < 100);
1389
1390 /* Re-enable RX and TX interrupts */
1391 eepro_en_int(ioaddr);
1392 }
1393 if (lp->eepro == LAN595FX_10ISA) {
1394 eepro_complete_selreset(ioaddr);
1395 }
1396 else
1397 eepro_en_rx(ioaddr);
1398}
1399
1400/* The horrible routine to read a word from the serial EEPROM. */
1401/* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1402
1403/* The delay between EEPROM clock transitions. */
1404#define eeprom_delay() { udelay(40); }
1405#define EE_READ_CMD (6 << 6)
1406
Hannes Ederdac499f2008-12-25 23:56:45 -08001407static int
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408read_eeprom(int ioaddr, int location, struct net_device *dev)
1409{
1410 int i;
1411 unsigned short retval = 0;
1412 struct eepro_local *lp = netdev_priv(dev);
1413 short ee_addr = ioaddr + lp->eeprom_reg;
1414 int read_cmd = location | EE_READ_CMD;
1415 short ctrl_val = EECS ;
1416
1417 /* XXXX - black magic */
1418 eepro_sw2bank1(ioaddr);
1419 outb(0x00, ioaddr + STATUS_REG);
1420 /* XXXX - black magic */
1421
1422 eepro_sw2bank2(ioaddr);
1423 outb(ctrl_val, ee_addr);
1424
1425 /* Shift the read command bits out. */
1426 for (i = 8; i >= 0; i--) {
1427 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1428 : ctrl_val;
1429 outb(outval, ee_addr);
1430 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1431 eeprom_delay();
1432 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1433 eeprom_delay();
1434 }
1435 outb(ctrl_val, ee_addr);
1436
1437 for (i = 16; i > 0; i--) {
1438 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1439 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1440 outb(ctrl_val, ee_addr); eeprom_delay();
1441 }
1442
1443 /* Terminate the EEPROM access. */
1444 ctrl_val &= ~EECS;
1445 outb(ctrl_val | EESK, ee_addr);
1446 eeprom_delay();
1447 outb(ctrl_val, ee_addr);
1448 eeprom_delay();
1449 eepro_sw2bank0(ioaddr);
1450 return retval;
1451}
1452
1453static int
1454hardware_send_packet(struct net_device *dev, void *buf, short length)
1455{
1456 struct eepro_local *lp = netdev_priv(dev);
1457 short ioaddr = dev->base_addr;
1458 unsigned status, tx_available, last, end;
1459
1460 if (net_debug > 5)
1461 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1462
1463 /* determine how much of the transmit buffer space is available */
1464 if (lp->tx_end > lp->tx_start)
1465 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1466 else if (lp->tx_end < lp->tx_start)
1467 tx_available = lp->tx_start - lp->tx_end;
1468 else tx_available = lp->xmt_ram;
1469
1470 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1471 /* No space available ??? */
1472 return 1;
1473 }
1474
1475 last = lp->tx_end;
1476 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1477
1478 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001479 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 /* Arrrr!!!, must keep the xmt header together,
1481 several days were lost to chase this one down. */
1482 last = lp->xmt_lower_limit;
1483 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1484 }
1485 else end = lp->xmt_lower_limit + (end -
1486 lp->xmt_upper_limit + 2);
1487 }
1488
1489 outw(last, ioaddr + HOST_ADDRESS_REG);
1490 outw(XMT_CMD, ioaddr + IO_PORT);
1491 outw(0, ioaddr + IO_PORT);
1492 outw(end, ioaddr + IO_PORT);
1493 outw(length, ioaddr + IO_PORT);
1494
1495 if (lp->version == LAN595)
1496 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1497 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1498 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1499 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1500 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1501 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1502 }
1503
1504 /* A dummy read to flush the DRAM write pipeline */
1505 status = inw(ioaddr + IO_PORT);
1506
1507 if (lp->tx_start == lp->tx_end) {
1508 outw(last, ioaddr + lp->xmt_bar);
1509 outb(XMT_CMD, ioaddr);
1510 lp->tx_start = last; /* I don't like to change tx_start here */
1511 }
1512 else {
1513 /* update the next address and the chain bit in the
1514 last packet */
1515
1516 if (lp->tx_end != last) {
1517 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1518 outw(last, ioaddr + IO_PORT);
1519 }
1520
1521 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1522 status = inw(ioaddr + IO_PORT);
1523 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1524
1525 /* Continue the transmit command */
1526 outb(RESUME_XMT_CMD, ioaddr);
1527 }
1528
1529 lp->tx_last = last;
1530 lp->tx_end = end;
1531
1532 if (net_debug > 5)
1533 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1534
1535 return 0;
1536}
1537
1538static void
1539eepro_rx(struct net_device *dev)
1540{
1541 struct eepro_local *lp = netdev_priv(dev);
1542 short ioaddr = dev->base_addr;
1543 short boguscount = 20;
1544 short rcv_car = lp->rx_start;
1545 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1546
1547 if (net_debug > 5)
1548 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1549
1550 /* Set the read pointer to the start of the RCV */
1551 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1552
1553 rcv_event = inw(ioaddr + IO_PORT);
1554
1555 while (rcv_event == RCV_DONE) {
1556
1557 rcv_status = inw(ioaddr + IO_PORT);
1558 rcv_next_frame = inw(ioaddr + IO_PORT);
1559 rcv_size = inw(ioaddr + IO_PORT);
1560
1561 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1562
1563 /* Malloc up new buffer. */
1564 struct sk_buff *skb;
1565
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001566 dev->stats.rx_bytes+=rcv_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567 rcv_size &= 0x3fff;
1568 skb = dev_alloc_skb(rcv_size+5);
1569 if (skb == NULL) {
1570 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001571 dev->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1573 lp->rx_start = rcv_next_frame;
1574 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1575
1576 break;
1577 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578 skb_reserve(skb,2);
1579
1580 if (lp->version == LAN595)
1581 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1582 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1583 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1584 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1585 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1586 (rcv_size + 3) >> 2);
1587 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1588 }
1589
1590 skb->protocol = eth_type_trans(skb,dev);
1591 netif_rx(skb);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001592 dev->stats.rx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593 }
1594
1595 else { /* Not sure will ever reach here,
1596 I set the 595 to discard bad received frames */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001597 dev->stats.rx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598
1599 if (rcv_status & 0x0100)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001600 dev->stats.rx_over_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601
1602 else if (rcv_status & 0x0400)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001603 dev->stats.rx_frame_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001604
1605 else if (rcv_status & 0x0800)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001606 dev->stats.rx_crc_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607
Jeff Garzikd61780c2005-10-30 15:01:51 -08001608 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1610 }
1611
1612 if (rcv_status & 0x1000)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001613 dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614
1615 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1616 lp->rx_start = rcv_next_frame;
1617
1618 if (--boguscount == 0)
1619 break;
1620
1621 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1622 rcv_event = inw(ioaddr + IO_PORT);
1623
1624 }
1625 if (rcv_car == 0)
1626 rcv_car = lp->rcv_upper_limit | 0xff;
1627
1628 outw(rcv_car - 1, ioaddr + RCV_STOP);
1629
1630 if (net_debug > 5)
1631 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1632}
1633
1634static void
1635eepro_transmit_interrupt(struct net_device *dev)
1636{
1637 struct eepro_local *lp = netdev_priv(dev);
1638 short ioaddr = dev->base_addr;
Jeff Garzikd61780c2005-10-30 15:01:51 -08001639 short boguscount = 25;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001640 short xmt_status;
1641
Jeff Garzikd61780c2005-10-30 15:01:51 -08001642 while ((lp->tx_start != lp->tx_end) && boguscount--) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001643
1644 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1645 xmt_status = inw(ioaddr+IO_PORT);
1646
1647 if (!(xmt_status & TX_DONE_BIT))
1648 break;
1649
1650 xmt_status = inw(ioaddr+IO_PORT);
1651 lp->tx_start = inw(ioaddr+IO_PORT);
1652
1653 netif_wake_queue (dev);
1654
1655 if (xmt_status & TX_OK)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001656 dev->stats.tx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657 else {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001658 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659 if (xmt_status & 0x0400) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001660 dev->stats.tx_carrier_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661 printk(KERN_DEBUG "%s: carrier error\n",
1662 dev->name);
1663 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1664 dev->name, xmt_status);
1665 }
1666 else {
1667 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1668 dev->name, xmt_status);
1669 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1670 dev->name, xmt_status);
1671 }
1672 }
1673 if (xmt_status & 0x000f) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001674 dev->stats.collisions += (xmt_status & 0x000f);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675 }
1676
1677 if ((xmt_status & 0x0040) == 0x0) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001678 dev->stats.tx_heartbeat_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679 }
1680 }
1681}
1682
1683static int eepro_ethtool_get_settings(struct net_device *dev,
1684 struct ethtool_cmd *cmd)
1685{
Wang Chen4cf16532008-11-12 23:38:14 -08001686 struct eepro_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687
Jeff Garzikd61780c2005-10-30 15:01:51 -08001688 cmd->supported = SUPPORTED_10baseT_Half |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689 SUPPORTED_10baseT_Full |
1690 SUPPORTED_Autoneg;
1691 cmd->advertising = ADVERTISED_10baseT_Half |
1692 ADVERTISED_10baseT_Full |
1693 ADVERTISED_Autoneg;
1694
1695 if (GetBit(lp->word[5], ee_PortTPE)) {
1696 cmd->supported |= SUPPORTED_TP;
1697 cmd->advertising |= ADVERTISED_TP;
1698 }
1699 if (GetBit(lp->word[5], ee_PortBNC)) {
1700 cmd->supported |= SUPPORTED_BNC;
1701 cmd->advertising |= ADVERTISED_BNC;
1702 }
1703 if (GetBit(lp->word[5], ee_PortAUI)) {
1704 cmd->supported |= SUPPORTED_AUI;
1705 cmd->advertising |= ADVERTISED_AUI;
1706 }
1707
1708 cmd->speed = SPEED_10;
1709
1710 if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
1711 cmd->duplex = DUPLEX_FULL;
1712 }
1713 else {
1714 cmd->duplex = DUPLEX_HALF;
1715 }
1716
1717 cmd->port = dev->if_port;
1718 cmd->phy_address = dev->base_addr;
1719 cmd->transceiver = XCVR_INTERNAL;
1720
1721 if (lp->word[0] & ee_AutoNeg) {
1722 cmd->autoneg = 1;
1723 }
1724
1725 return 0;
1726}
1727
1728static void eepro_ethtool_get_drvinfo(struct net_device *dev,
1729 struct ethtool_drvinfo *drvinfo)
1730{
1731 strcpy(drvinfo->driver, DRV_NAME);
1732 strcpy(drvinfo->version, DRV_VERSION);
1733 sprintf(drvinfo->bus_info, "ISA 0x%lx", dev->base_addr);
1734}
1735
Jeff Garzik7282d492006-09-13 14:30:00 -04001736static const struct ethtool_ops eepro_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737 .get_settings = eepro_ethtool_get_settings,
1738 .get_drvinfo = eepro_ethtool_get_drvinfo,
1739};
1740
1741#ifdef MODULE
1742
1743#define MAX_EEPRO 8
1744static struct net_device *dev_eepro[MAX_EEPRO];
1745
1746static int io[MAX_EEPRO] = {
1747 [0 ... MAX_EEPRO-1] = -1
1748};
1749static int irq[MAX_EEPRO];
1750static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1751 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1752};
1753static int autodetect;
1754
1755static int n_eepro;
1756/* For linux 2.1.xx */
1757
1758MODULE_AUTHOR("Pascal Dupuis and others");
1759MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1760MODULE_LICENSE("GPL");
1761
Florin Malitaa1bfcd92005-10-28 15:14:46 -07001762module_param_array(io, int, NULL, 0);
1763module_param_array(irq, int, NULL, 0);
1764module_param_array(mem, int, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765module_param(autodetect, int, 0);
1766MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1767MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1768MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1769MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1770
Andrew Morton02a32452006-08-14 23:00:01 -07001771int __init init_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772{
1773 struct net_device *dev;
1774 int i;
1775 if (io[0] == -1 && autodetect == 0) {
1776 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1777 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1778 return -ENODEV;
1779 }
1780 else if (autodetect) {
1781 /* if autodetect is set then we must force detection */
1782 for (i = 0; i < MAX_EEPRO; i++) {
1783 io[i] = 0;
1784 }
1785
1786 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1787 }
1788
Roel Kluind513d012009-07-26 18:53:17 -07001789 for (i = 0; i < MAX_EEPRO && io[i] != -1; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 dev = alloc_etherdev(sizeof(struct eepro_local));
1791 if (!dev)
1792 break;
1793
1794 dev->mem_end = mem[i];
1795 dev->base_addr = io[i];
1796 dev->irq = irq[i];
1797
1798 if (do_eepro_probe(dev) == 0) {
b1fc5502005-05-12 20:11:55 -04001799 dev_eepro[n_eepro++] = dev;
1800 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 }
1802 free_netdev(dev);
1803 break;
1804 }
1805
1806 if (n_eepro)
1807 printk(KERN_INFO "%s", version);
1808
1809 return n_eepro ? 0 : -ENODEV;
1810}
1811
Al Viroafc8eb42006-06-14 18:50:53 -04001812void __exit
Linus Torvalds1da177e2005-04-16 15:20:36 -07001813cleanup_module(void)
1814{
1815 int i;
1816
1817 for (i=0; i<n_eepro; i++) {
1818 struct net_device *dev = dev_eepro[i];
1819 unregister_netdev(dev);
1820 release_region(dev->base_addr, EEPRO_IO_EXTENT);
1821 free_netdev(dev);
1822 }
1823}
1824#endif /* MODULE */