1 /* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */
3 Written 1994, 1995,1996 by Bao C. Ha.
5 Copyright (C) 1994, 1995,1996 by Bao C. Ha.
7 This software may be used and distributed
8 according to the terms of the GNU General Public License,
9 incorporated herein by reference.
11 The author may be reached at bao.ha@srs.gov
12 or 418 Hastings Place, Martinez, GA 30907.
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!
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.
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
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.
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;
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)
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).
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.
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)
83 0.07a Fix a stat report which counts every packet as a
84 heart-beat failure. (BCH, 6/3/95)
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)
92 0.06a,b Interim released. Minor changes in the comments and
93 print out format. (BCH, 3/9/95 and 3/14/95)
95 0.06 First stable release that I am comfortable with. (BCH,
98 0.05 Complete testing of multicast. (BCH, 2/23/95)
100 0.04 Adding multicast support. (BCH, 2/14/95)
102 0.03 First widely alpha release for public testing.
107 static const char version
[] =
108 "eepro.c: v0.13b 09/13/2004 aris@cathedrallabs.org\n";
110 #include <linux/module.h>
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.
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.
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.
129 The User Manual for the 82595. It provides a lot of the missing
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>
152 #include <asm/system.h>
156 #define DRV_NAME "eepro"
157 #define DRV_VERSION "0.13c"
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)
163 #define compat_init_data __initdata
164 enum iftype
{ AUI
=0, BNC
=1, TPE
=2 };
166 /* First, a few definitions that the brave might change. */
167 /* A zero-terminated list of I/O addresses to be probed. */
168 static 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 */
173 /* To try the (not-really PnP Wakeup: */
178 /* use 0 for production, 1 for verification, >2 for debug */
182 static unsigned int net_debug
= NET_DEBUG
;
184 /* The number of low I/O ports used by the ethercard. */
185 #define EEPRO_IO_EXTENT 16
187 /* Different 82595 chips */
191 #define LAN595FX_10ISA 3
193 /* Information that need to be kept for each board. */
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. */
207 spinlock_t lock
; /* Serializing lock */
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];
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
227 #define GetBit(x,y) ((x & (1<<y))>>y)
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 */
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! */
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 */
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 */
275 #define ee_PowerMgt 10 /* 0= disabled */
276 #define ee_CP 13 /* Concurrent Processing */
277 #define ee_CPMask 0x7
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
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 */
290 #define ee_SIZE 0x40 /* total EEprom Size */
291 #define ee_Checksum 0xBABA /* initial and final value for adding checksum */
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 */
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
306 #define TX_TIMEOUT 40
308 /* Index to functions, as function prototypes. */
310 static int eepro_probe1(struct net_device
*dev
, int autoprobe
);
311 static int eepro_open(struct net_device
*dev
);
312 static int eepro_send_packet(struct sk_buff
*skb
, struct net_device
*dev
);
313 static irqreturn_t
eepro_interrupt(int irq
, void *dev_id
);
314 static void eepro_rx(struct net_device
*dev
);
315 static void eepro_transmit_interrupt(struct net_device
*dev
);
316 static int eepro_close(struct net_device
*dev
);
317 static void set_multicast_list(struct net_device
*dev
);
318 static void eepro_tx_timeout (struct net_device
*dev
);
320 static int read_eeprom(int ioaddr
, int location
, struct net_device
*dev
);
321 static int hardware_send_packet(struct net_device
*dev
, void *buf
, short length
);
322 static int eepro_grab_irq(struct net_device
*dev
);
325 Details of the i82595.
327 You will need either the datasheet or the user manual to understand what
328 is going on here. The 82595 is very different from the 82586, 82593.
330 The receive algorithm in eepro_rx() is just an implementation of the
331 RCV ring structure that the Intel 82595 imposes at the hardware level.
332 The receive buffer is set at 24K, and the transmit buffer is 8K. I
333 am assuming that the total buffer memory is 32K, which is true for the
334 Intel EtherExpress Pro/10. If it is less than that on a generic card,
335 the driver will be broken.
337 The transmit algorithm in the hardware_send_packet() is similar to the
338 one in the eepro_rx(). The transmit buffer is a ring linked list.
339 I just queue the next available packet to the end of the list. In my
340 system, the 82595 is so fast that the list seems to always contain a
341 single packet. In other systems with faster computers and more congested
342 network traffics, the ring linked list should improve performance by
343 allowing up to 8K worth of packets to be queued.
345 The sizes of the receive and transmit buffers can now be changed via lilo
346 or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0"
347 where rx-buffer is in KB unit. Modules uses the parameter mem which is
348 also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer."
349 The receive buffer has to be more than 3K or less than 29K. Otherwise,
350 it is reset to the default of 24K, and, hence, 8K for the trasnmit
351 buffer (transmit-buffer = 32K - receive-buffer).
354 #define RAM_SIZE 0x8000
357 #define RCV_DEFAULT_RAM 0x6000
360 #define XMT_DEFAULT_RAM (RAM_SIZE - RCV_DEFAULT_RAM)
362 #define XMT_START_PRO RCV_DEFAULT_RAM
363 #define XMT_START_10 0x0000
364 #define RCV_START_PRO 0x0000
365 #define RCV_START_10 XMT_DEFAULT_RAM
367 #define RCV_DONE 0x0008
369 #define RX_ERROR 0x0d81
371 #define TX_DONE_BIT 0x0080
373 #define CHAIN_BIT 0x8000
374 #define XMT_STATUS 0x02
375 #define XMT_CHAIN 0x04
376 #define XMT_COUNT 0x06
378 #define BANK0_SELECT 0x00
379 #define BANK1_SELECT 0x40
380 #define BANK2_SELECT 0x80
382 /* Bank 0 registers */
383 #define COMMAND_REG 0x00 /* Register 0 */
384 #define MC_SETUP 0x03
386 #define DIAGNOSE_CMD 0x07
387 #define RCV_ENABLE_CMD 0x08
388 #define RCV_DISABLE_CMD 0x0a
389 #define STOP_RCV_CMD 0x0b
390 #define RESET_CMD 0x0e
391 #define POWER_DOWN_CMD 0x18
392 #define RESUME_XMT_CMD 0x1c
393 #define SEL_RESET_CMD 0x1e
394 #define STATUS_REG 0x01 /* Register 1 */
397 #define EXEC_STATUS 0x30
398 #define ID_REG 0x02 /* Register 2 */
399 #define R_ROBIN_BITS 0xc0 /* round robin counter */
400 #define ID_REG_MASK 0x2c
401 #define ID_REG_SIG 0x24
402 #define AUTO_ENABLE 0x10
403 #define INT_MASK_REG 0x03 /* Register 3 */
404 #define RX_STOP_MASK 0x01
407 #define EXEC_MASK 0x08
408 #define ALL_MASK 0x0f
409 #define IO_32_BIT 0x10
410 #define RCV_BAR 0x04 /* The following are word (16-bit) registers */
411 #define RCV_STOP 0x06
413 #define XMT_BAR_PRO 0x0a
414 #define XMT_BAR_10 0x0b
416 #define HOST_ADDRESS_REG 0x0c
418 #define IO_PORT_32_BIT 0x0c
420 /* Bank 1 registers */
422 #define WORD_WIDTH 0x02
423 #define INT_ENABLE 0x80
424 #define INT_NO_REG 0x02
425 #define RCV_LOWER_LIMIT_REG 0x08
426 #define RCV_UPPER_LIMIT_REG 0x09
428 #define XMT_LOWER_LIMIT_REG_PRO 0x0a
429 #define XMT_UPPER_LIMIT_REG_PRO 0x0b
430 #define XMT_LOWER_LIMIT_REG_10 0x0b
431 #define XMT_UPPER_LIMIT_REG_10 0x0a
433 /* Bank 2 registers */
434 #define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */
435 #define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */
436 #define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */
438 #define PRMSC_Mode 0x01
439 #define Multi_IA 0x20
445 #define A_N_ENABLE 0x02
447 #define I_ADD_REG0 0x04
448 #define I_ADD_REG1 0x05
449 #define I_ADD_REG2 0x06
450 #define I_ADD_REG3 0x07
451 #define I_ADD_REG4 0x08
452 #define I_ADD_REG5 0x09
454 #define EEPROM_REG_PRO 0x0a
455 #define EEPROM_REG_10 0x0b
462 /* do a full reset */
463 #define eepro_reset(ioaddr) outb(RESET_CMD, ioaddr)
465 /* do a nice reset */
466 #define eepro_sel_reset(ioaddr) { \
467 outb(SEL_RESET_CMD, ioaddr); \
472 /* disable all interrupts */
473 #define eepro_dis_int(ioaddr) outb(ALL_MASK, ioaddr + INT_MASK_REG)
475 /* clear all interrupts */
476 #define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG)
479 #define eepro_en_int(ioaddr) outb(ALL_MASK & ~(RX_MASK | TX_MASK), \
480 ioaddr + INT_MASK_REG)
482 /* enable exec event interrupt */
483 #define eepro_en_intexec(ioaddr) outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG)
486 #define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr)
489 #define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr)
492 #define eepro_sw2bank0(ioaddr) outb(BANK0_SELECT, ioaddr)
493 #define eepro_sw2bank1(ioaddr) outb(BANK1_SELECT, ioaddr)
494 #define eepro_sw2bank2(ioaddr) outb(BANK2_SELECT, ioaddr)
496 /* enable interrupt line */
497 #define eepro_en_intline(ioaddr) outb(inb(ioaddr + REG1) | INT_ENABLE,\
500 /* disable interrupt line */
501 #define eepro_dis_intline(ioaddr) outb(inb(ioaddr + REG1) & 0x7f, \
504 /* set diagnose flag */
505 #define eepro_diag(ioaddr) outb(DIAGNOSE_CMD, ioaddr)
508 #define eepro_ack_rx(ioaddr) outb (RX_INT, ioaddr + STATUS_REG)
511 #define eepro_ack_tx(ioaddr) outb (TX_INT, ioaddr + STATUS_REG)
513 /* a complete sel reset */
514 #define eepro_complete_selreset(ioaddr) { \
515 dev->stats.tx_errors++;\
516 eepro_sel_reset(ioaddr);\
518 lp->xmt_lower_limit;\
519 lp->tx_start = lp->tx_end;\
521 dev->trans_start = jiffies;\
522 netif_wake_queue(dev);\
523 eepro_en_rx(ioaddr);\
526 /* Check for a network adaptor of this type, and return '0' if one exists.
527 If dev->base_addr == 0, probe all likely locations.
528 If dev->base_addr == 1, always return failure.
529 If dev->base_addr == 2, allocate space for the device and return success
530 (detachable devices only).
532 static int __init
do_eepro_probe(struct net_device
*dev
)
535 int base_addr
= dev
->base_addr
;
539 /* XXXX for multiple cards should this only be run once? */
542 #define WakeupPort 0x279
543 #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\
544 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\
545 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\
546 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43}
549 unsigned short int WS
[32]=WakeupSeq
;
551 if (request_region(WakeupPort
, 2, "eepro wakeup")) {
553 printk(KERN_DEBUG
"Waking UP\n");
555 outb_p(0,WakeupPort
);
556 outb_p(0,WakeupPort
);
557 for (i
=0; i
<32; i
++) {
558 outb_p(WS
[i
],WakeupPort
);
559 if (net_debug
>5) printk(KERN_DEBUG
": %#x ",WS
[i
]);
562 release_region(WakeupPort
, 2);
564 printk(KERN_WARNING
"PnP wakeup region busy!\n");
568 if (base_addr
> 0x1ff) /* Check a single specified location. */
569 return eepro_probe1(dev
, 0);
571 else if (base_addr
!= 0) /* Don't probe at all. */
574 for (i
= 0; eepro_portlist
[i
]; i
++) {
575 dev
->base_addr
= eepro_portlist
[i
];
577 if (eepro_probe1(dev
, 1) == 0)
585 struct net_device
* __init
eepro_probe(int unit
)
587 struct net_device
*dev
= alloc_etherdev(sizeof(struct eepro_local
));
591 return ERR_PTR(-ENODEV
);
593 sprintf(dev
->name
, "eth%d", unit
);
594 netdev_boot_setup_check(dev
);
596 err
= do_eepro_probe(dev
);
606 static void __init
printEEPROMInfo(struct net_device
*dev
)
608 struct eepro_local
*lp
= (struct eepro_local
*)dev
->priv
;
609 int ioaddr
= dev
->base_addr
;
614 for (i
= 0; i
< 8; i
++)
616 for ( ; i
< ee_SIZE
; i
++)
617 j
+= read_eeprom(ioaddr
, i
, dev
);
619 printk(KERN_DEBUG
"Checksum: %#x\n",j
&0xffff);
622 printk(KERN_DEBUG
"Word0:\n");
623 printk(KERN_DEBUG
" Plug 'n Pray: %d\n",GetBit(Word
,ee_PnP
));
624 printk(KERN_DEBUG
" Buswidth: %d\n",(GetBit(Word
,ee_BusWidth
)+1)*8 );
625 printk(KERN_DEBUG
" AutoNegotiation: %d\n",GetBit(Word
,ee_AutoNeg
));
626 printk(KERN_DEBUG
" IO Address: %#x\n", (Word
>>ee_IO0
)<<4);
630 printk(KERN_DEBUG
"Word1:\n");
631 printk(KERN_DEBUG
" INT: %d\n", Word
& ee_IntMask
);
632 printk(KERN_DEBUG
" LI: %d\n", GetBit(Word
,ee_LI
));
633 printk(KERN_DEBUG
" PC: %d\n", GetBit(Word
,ee_PC
));
634 printk(KERN_DEBUG
" TPE/AUI: %d\n", GetBit(Word
,ee_TPE_AUI
));
635 printk(KERN_DEBUG
" Jabber: %d\n", GetBit(Word
,ee_Jabber
));
636 printk(KERN_DEBUG
" AutoPort: %d\n", GetBit(!Word
,ee_Jabber
));
637 printk(KERN_DEBUG
" Duplex: %d\n", GetBit(Word
,ee_Duplex
));
641 printk(KERN_DEBUG
"Word5:\n");
642 printk(KERN_DEBUG
" BNC: %d\n",GetBit(Word
,ee_BNC_TPE
));
643 printk(KERN_DEBUG
" NumConnectors: %d\n",GetBit(Word
,ee_NumConn
));
644 printk(KERN_DEBUG
" Has ");
645 if (GetBit(Word
,ee_PortTPE
)) printk(KERN_DEBUG
"TPE ");
646 if (GetBit(Word
,ee_PortBNC
)) printk(KERN_DEBUG
"BNC ");
647 if (GetBit(Word
,ee_PortAUI
)) printk(KERN_DEBUG
"AUI ");
648 printk(KERN_DEBUG
"port(s) \n");
651 printk(KERN_DEBUG
"Word6:\n");
652 printk(KERN_DEBUG
" Stepping: %d\n",Word
& ee_StepMask
);
653 printk(KERN_DEBUG
" BoardID: %d\n",Word
>>ee_BoardID
);
656 printk(KERN_DEBUG
"Word7:\n");
657 printk(KERN_DEBUG
" INT to IRQ:\n");
659 for (i
=0, j
=0; i
<15; i
++)
660 if (GetBit(Word
,i
)) printk(KERN_DEBUG
" INT%d -> IRQ %d;",j
++,i
);
662 printk(KERN_DEBUG
"\n");
665 /* function to recalculate the limits of buffer based on rcv_ram */
666 static void eepro_recalc (struct net_device
*dev
)
668 struct eepro_local
* lp
;
670 lp
= netdev_priv(dev
);
671 lp
->xmt_ram
= RAM_SIZE
- lp
->rcv_ram
;
673 if (lp
->eepro
== LAN595FX_10ISA
) {
674 lp
->xmt_lower_limit
= XMT_START_10
;
675 lp
->xmt_upper_limit
= (lp
->xmt_ram
- 2);
676 lp
->rcv_lower_limit
= lp
->xmt_ram
;
677 lp
->rcv_upper_limit
= (RAM_SIZE
- 2);
680 lp
->rcv_lower_limit
= RCV_START_PRO
;
681 lp
->rcv_upper_limit
= (lp
->rcv_ram
- 2);
682 lp
->xmt_lower_limit
= lp
->rcv_ram
;
683 lp
->xmt_upper_limit
= (RAM_SIZE
- 2);
687 /* prints boot-time info */
688 static void __init
eepro_print_info (struct net_device
*dev
)
690 struct eepro_local
* lp
= netdev_priv(dev
);
692 const char * ifmap
[] = {"AUI", "10Base2", "10BaseT"};
694 i
= inb(dev
->base_addr
+ ID_REG
);
695 printk(KERN_DEBUG
" id: %#x ",i
);
696 printk(" io: %#x ", (unsigned)dev
->base_addr
);
700 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
701 dev
->name
, (unsigned)dev
->base_addr
);
704 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
705 dev
->name
, (unsigned)dev
->base_addr
);
708 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
709 dev
->name
, (unsigned)dev
->base_addr
);
712 printk("%s: Intel 82595-based lan card at %#x,",
713 dev
->name
, (unsigned)dev
->base_addr
);
716 for (i
=0; i
< 6; i
++)
717 printk("%c%02x", i
? ':' : ' ', dev
->dev_addr
[i
]);
720 printk(KERN_DEBUG
", %dK RCV buffer",
721 (int)(lp
->rcv_ram
)/1024);
724 printk(", IRQ %d, %s.\n", dev
->irq
, ifmap
[dev
->if_port
]);
726 printk(", %s.\n", ifmap
[dev
->if_port
]);
730 if (i
& 0x2000) /* bit 13 of EEPROM word 5 */
731 printk(KERN_DEBUG
"%s: Concurrent Processing is "
732 "enabled but not used!\n", dev
->name
);
735 /* Check the station address for the manufacturer's code */
737 printEEPROMInfo(dev
);
740 static const struct ethtool_ops eepro_ethtool_ops
;
742 /* This is the real probe routine. Linux has a history of friendly device
743 probes on the ISA bus. A good device probe avoids doing writes, and
744 verifies that the correct device exists and functions. */
746 static int __init
eepro_probe1(struct net_device
*dev
, int autoprobe
)
748 unsigned short station_addr
[3], id
, counter
;
750 struct eepro_local
*lp
;
751 int ioaddr
= dev
->base_addr
;
754 /* Grab the region so we can find another board if autoIRQ fails. */
755 if (!request_region(ioaddr
, EEPRO_IO_EXTENT
, DRV_NAME
)) {
757 printk(KERN_WARNING
"EEPRO: io-port 0x%04x in use \n",
762 /* Now, we are going to check for the signature of the
763 ID_REG (register 2 of bank 0) */
765 id
= inb(ioaddr
+ ID_REG
);
767 if ((id
& ID_REG_MASK
) != ID_REG_SIG
)
770 /* We seem to have the 82595 signature, let's
771 play with its counter (last 2 bits of
772 register 2 of bank 0) to be sure. */
774 counter
= id
& R_ROBIN_BITS
;
776 if ((inb(ioaddr
+ ID_REG
) & R_ROBIN_BITS
) != (counter
+ 0x40))
779 lp
= netdev_priv(dev
);
780 memset(lp
, 0, sizeof(struct eepro_local
));
781 lp
->xmt_bar
= XMT_BAR_PRO
;
782 lp
->xmt_lower_limit_reg
= XMT_LOWER_LIMIT_REG_PRO
;
783 lp
->xmt_upper_limit_reg
= XMT_UPPER_LIMIT_REG_PRO
;
784 lp
->eeprom_reg
= EEPROM_REG_PRO
;
785 spin_lock_init(&lp
->lock
);
787 /* Now, get the ethernet hardware address from
789 station_addr
[0] = read_eeprom(ioaddr
, 2, dev
);
791 /* FIXME - find another way to know that we've found
794 if (station_addr
[0] == 0x0000 || station_addr
[0] == 0xffff) {
795 lp
->eepro
= LAN595FX_10ISA
;
796 lp
->eeprom_reg
= EEPROM_REG_10
;
797 lp
->xmt_lower_limit_reg
= XMT_LOWER_LIMIT_REG_10
;
798 lp
->xmt_upper_limit_reg
= XMT_UPPER_LIMIT_REG_10
;
799 lp
->xmt_bar
= XMT_BAR_10
;
800 station_addr
[0] = read_eeprom(ioaddr
, 2, dev
);
803 /* get all words at once. will be used here and for ethtool */
804 for (i
= 0; i
< 8; i
++) {
805 lp
->word
[i
] = read_eeprom(ioaddr
, i
, dev
);
807 station_addr
[1] = lp
->word
[3];
808 station_addr
[2] = lp
->word
[4];
811 if (lp
->word
[7] == ee_FX_INT2IRQ
)
813 else if (station_addr
[2] == SA_ADDR1
)
817 /* Fill in the 'dev' fields. */
818 for (i
=0; i
< 6; i
++)
819 dev
->dev_addr
[i
] = ((unsigned char *) station_addr
)[5-i
];
821 /* RX buffer must be more than 3K and less than 29K */
822 if (dev
->mem_end
< 3072 || dev
->mem_end
> 29696)
823 lp
->rcv_ram
= RCV_DEFAULT_RAM
;
825 /* calculate {xmt,rcv}_{lower,upper}_limit */
828 if (GetBit(lp
->word
[5], ee_BNC_TPE
))
833 if (dev
->irq
< 2 && lp
->eepro
!= 0) {
834 /* Mask off INT number */
835 int count
= lp
->word
[1] & 7;
836 unsigned irqMask
= lp
->word
[7];
839 irqMask
&= irqMask
- 1;
841 count
= ffs(irqMask
);
844 dev
->irq
= count
- 1;
847 printk(KERN_ERR
" Duh! illegal interrupt vector stored in EEPROM.\n");
849 } else if (dev
->irq
== 2) {
854 dev
->open
= eepro_open
;
855 dev
->stop
= eepro_close
;
856 dev
->hard_start_xmit
= eepro_send_packet
;
857 dev
->set_multicast_list
= &set_multicast_list
;
858 dev
->tx_timeout
= eepro_tx_timeout
;
859 dev
->watchdog_timeo
= TX_TIMEOUT
;
860 dev
->ethtool_ops
= &eepro_ethtool_ops
;
862 /* print boot time info */
863 eepro_print_info(dev
);
868 err
= register_netdev(dev
);
875 release_region(dev
->base_addr
, EEPRO_IO_EXTENT
);
879 /* Open/initialize the board. This is called (in the current kernel)
880 sometime after booting when the 'ifconfig' program is run.
882 This routine should set everything up anew at each open, even
883 registers that "should" only need to be set once at boot, so that
884 there is non-reboot way to recover if something goes wrong.
887 static char irqrmap
[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
888 static char irqrmap2
[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
889 static int eepro_grab_irq(struct net_device
*dev
)
891 int irqlist
[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
892 int *irqp
= irqlist
, temp_reg
, ioaddr
= dev
->base_addr
;
894 eepro_sw2bank1(ioaddr
); /* be CAREFUL, BANK 1 now */
896 /* Enable the interrupt line. */
897 eepro_en_intline(ioaddr
);
899 /* be CAREFUL, BANK 0 now */
900 eepro_sw2bank0(ioaddr
);
902 /* clear all interrupts */
903 eepro_clear_int(ioaddr
);
905 /* Let EXEC event to interrupt */
906 eepro_en_intexec(ioaddr
);
909 eepro_sw2bank1(ioaddr
); /* be CAREFUL, BANK 1 now */
911 temp_reg
= inb(ioaddr
+ INT_NO_REG
);
912 outb((temp_reg
& 0xf8) | irqrmap
[*irqp
], ioaddr
+ INT_NO_REG
);
914 eepro_sw2bank0(ioaddr
); /* Switch back to Bank 0 */
916 if (request_irq (*irqp
, NULL
, IRQF_SHARED
, "bogus", dev
) != EBUSY
) {
917 unsigned long irq_mask
;
918 /* Twinkle the interrupt, and check if it's seen */
919 irq_mask
= probe_irq_on();
921 eepro_diag(ioaddr
); /* RESET the 82595 */
924 if (*irqp
== probe_irq_off(irq_mask
)) /* It's a good IRQ line */
927 /* clear all interrupts */
928 eepro_clear_int(ioaddr
);
932 eepro_sw2bank1(ioaddr
); /* Switch back to Bank 1 */
934 /* Disable the physical interrupt line. */
935 eepro_dis_intline(ioaddr
);
937 eepro_sw2bank0(ioaddr
); /* Switch back to Bank 0 */
939 /* Mask all the interrupts. */
940 eepro_dis_int(ioaddr
);
942 /* clear all interrupts */
943 eepro_clear_int(ioaddr
);
948 static int eepro_open(struct net_device
*dev
)
950 unsigned short temp_reg
, old8
, old9
;
952 int i
, ioaddr
= dev
->base_addr
;
953 struct eepro_local
*lp
= netdev_priv(dev
);
956 printk(KERN_DEBUG
"%s: entering eepro_open routine.\n", dev
->name
);
958 irqMask
= lp
->word
[7];
960 if (lp
->eepro
== LAN595FX_10ISA
) {
961 if (net_debug
> 3) printk(KERN_DEBUG
"p->eepro = 3;\n");
963 else if (irqMask
== ee_FX_INT2IRQ
) /* INT to IRQ Mask */
965 lp
->eepro
= 2; /* Yes, an Intel EtherExpress Pro/10+ */
966 if (net_debug
> 3) printk(KERN_DEBUG
"p->eepro = 2;\n");
969 else if ((dev
->dev_addr
[0] == SA_ADDR0
&&
970 dev
->dev_addr
[1] == SA_ADDR1
&&
971 dev
->dev_addr
[2] == SA_ADDR2
))
974 if (net_debug
> 3) printk(KERN_DEBUG
"p->eepro = 1;\n");
975 } /* Yes, an Intel EtherExpress Pro/10 */
977 else lp
->eepro
= 0; /* No, it is a generic 82585 lan card */
979 /* Get the interrupt vector for the 82595 */
980 if (dev
->irq
< 2 && eepro_grab_irq(dev
) == 0) {
981 printk(KERN_ERR
"%s: unable to get IRQ %d.\n", dev
->name
, dev
->irq
);
985 if (request_irq(dev
->irq
, &eepro_interrupt
, 0, dev
->name
, dev
)) {
986 printk(KERN_ERR
"%s: unable to get IRQ %d.\n", dev
->name
, dev
->irq
);
990 /* Initialize the 82595. */
992 eepro_sw2bank2(ioaddr
); /* be CAREFUL, BANK 2 now */
993 temp_reg
= inb(ioaddr
+ lp
->eeprom_reg
);
995 lp
->stepping
= temp_reg
>> 5; /* Get the stepping number of the 595 */
998 printk(KERN_DEBUG
"The stepping of the 82595 is %d\n", lp
->stepping
);
1000 if (temp_reg
& 0x10) /* Check the TurnOff Enable bit */
1001 outb(temp_reg
& 0xef, ioaddr
+ lp
->eeprom_reg
);
1002 for (i
=0; i
< 6; i
++)
1003 outb(dev
->dev_addr
[i
] , ioaddr
+ I_ADD_REG0
+ i
);
1005 temp_reg
= inb(ioaddr
+ REG1
); /* Setup Transmit Chaining */
1006 outb(temp_reg
| XMT_Chain_Int
| XMT_Chain_ErrStop
/* and discard bad RCV frames */
1007 | RCV_Discard_BadFrame
, ioaddr
+ REG1
);
1009 temp_reg
= inb(ioaddr
+ REG2
); /* Match broadcast */
1010 outb(temp_reg
| 0x14, ioaddr
+ REG2
);
1012 temp_reg
= inb(ioaddr
+ REG3
);
1013 outb(temp_reg
& 0x3f, ioaddr
+ REG3
); /* clear test mode */
1015 /* Set the receiving mode */
1016 eepro_sw2bank1(ioaddr
); /* be CAREFUL, BANK 1 now */
1018 /* Set the interrupt vector */
1019 temp_reg
= inb(ioaddr
+ INT_NO_REG
);
1020 if (lp
->eepro
== LAN595FX
|| lp
->eepro
== LAN595FX_10ISA
)
1021 outb((temp_reg
& 0xf8) | irqrmap2
[dev
->irq
], ioaddr
+ INT_NO_REG
);
1022 else outb((temp_reg
& 0xf8) | irqrmap
[dev
->irq
], ioaddr
+ INT_NO_REG
);
1025 temp_reg
= inb(ioaddr
+ INT_NO_REG
);
1026 if (lp
->eepro
== LAN595FX
|| lp
->eepro
== LAN595FX_10ISA
)
1027 outb((temp_reg
& 0xf0) | irqrmap2
[dev
->irq
] | 0x08,ioaddr
+INT_NO_REG
);
1028 else outb((temp_reg
& 0xf8) | irqrmap
[dev
->irq
], ioaddr
+ INT_NO_REG
);
1031 printk(KERN_DEBUG
"eepro_open: content of INT Reg is %x\n", temp_reg
);
1034 /* Initialize the RCV and XMT upper and lower limits */
1035 outb(lp
->rcv_lower_limit
>> 8, ioaddr
+ RCV_LOWER_LIMIT_REG
);
1036 outb(lp
->rcv_upper_limit
>> 8, ioaddr
+ RCV_UPPER_LIMIT_REG
);
1037 outb(lp
->xmt_lower_limit
>> 8, ioaddr
+ lp
->xmt_lower_limit_reg
);
1038 outb(lp
->xmt_upper_limit
>> 8, ioaddr
+ lp
->xmt_upper_limit_reg
);
1040 /* Enable the interrupt line. */
1041 eepro_en_intline(ioaddr
);
1043 /* Switch back to Bank 0 */
1044 eepro_sw2bank0(ioaddr
);
1046 /* Let RX and TX events to interrupt */
1047 eepro_en_int(ioaddr
);
1049 /* clear all interrupts */
1050 eepro_clear_int(ioaddr
);
1052 /* Initialize RCV */
1053 outw(lp
->rcv_lower_limit
, ioaddr
+ RCV_BAR
);
1054 lp
->rx_start
= lp
->rcv_lower_limit
;
1055 outw(lp
->rcv_upper_limit
| 0xfe, ioaddr
+ RCV_STOP
);
1057 /* Initialize XMT */
1058 outw(lp
->xmt_lower_limit
, ioaddr
+ lp
->xmt_bar
);
1059 lp
->tx_start
= lp
->tx_end
= lp
->xmt_lower_limit
;
1062 /* Check for the i82595TX and i82595FX */
1063 old8
= inb(ioaddr
+ 8);
1064 outb(~old8
, ioaddr
+ 8);
1066 if ((temp_reg
= inb(ioaddr
+ 8)) == old8
) {
1068 printk(KERN_DEBUG
"i82595 detected!\n");
1069 lp
->version
= LAN595
;
1072 lp
->version
= LAN595TX
;
1073 outb(old8
, ioaddr
+ 8);
1074 old9
= inb(ioaddr
+ 9);
1076 if (irqMask
==ee_FX_INT2IRQ
) {
1077 if (net_debug
> 3) {
1078 printk(KERN_DEBUG
"IrqMask: %#x\n",irqMask
);
1079 printk(KERN_DEBUG
"i82595FX detected!\n");
1081 lp
->version
= LAN595FX
;
1082 outb(old9
, ioaddr
+ 9);
1083 if (dev
->if_port
!= TPE
) { /* Hopefully, this will fix the
1084 problem of using Pentiums and
1086 eepro_sw2bank2(ioaddr
); /* be CAREFUL, BANK 2 now */
1087 temp_reg
= inb(ioaddr
+ REG13
);
1088 /* disable the full duplex mode since it is not
1089 applicable with the 10Base2 cable. */
1090 outb(temp_reg
& ~(FDX
| A_N_ENABLE
), REG13
);
1091 eepro_sw2bank0(ioaddr
); /* be CAREFUL, BANK 0 now */
1094 else if (net_debug
> 3) {
1095 printk(KERN_DEBUG
"temp_reg: %#x ~old9: %#x\n",temp_reg
,((~old9
)&0xff));
1096 printk(KERN_DEBUG
"i82595TX detected!\n");
1100 eepro_sel_reset(ioaddr
);
1102 netif_start_queue(dev
);
1105 printk(KERN_DEBUG
"%s: exiting eepro_open routine.\n", dev
->name
);
1108 eepro_en_rx(ioaddr
);
1113 static void eepro_tx_timeout (struct net_device
*dev
)
1115 struct eepro_local
*lp
= netdev_priv(dev
);
1116 int ioaddr
= dev
->base_addr
;
1118 /* if (net_debug > 1) */
1119 printk (KERN_ERR
"%s: transmit timed out, %s?\n", dev
->name
,
1120 "network cable problem");
1121 /* This is not a duplicate. One message for the console,
1122 one for the log file */
1123 printk (KERN_DEBUG
"%s: transmit timed out, %s?\n", dev
->name
,
1124 "network cable problem");
1125 eepro_complete_selreset(ioaddr
);
1129 static int eepro_send_packet(struct sk_buff
*skb
, struct net_device
*dev
)
1131 struct eepro_local
*lp
= netdev_priv(dev
);
1132 unsigned long flags
;
1133 int ioaddr
= dev
->base_addr
;
1134 short length
= skb
->len
;
1137 printk(KERN_DEBUG
"%s: entering eepro_send_packet routine.\n", dev
->name
);
1139 if (length
< ETH_ZLEN
) {
1140 if (skb_padto(skb
, ETH_ZLEN
))
1144 netif_stop_queue (dev
);
1146 eepro_dis_int(ioaddr
);
1147 spin_lock_irqsave(&lp
->lock
, flags
);
1150 unsigned char *buf
= skb
->data
;
1152 if (hardware_send_packet(dev
, buf
, length
))
1153 /* we won't wake queue here because we're out of space */
1154 dev
->stats
.tx_dropped
++;
1156 dev
->stats
.tx_bytes
+=skb
->len
;
1157 dev
->trans_start
= jiffies
;
1158 netif_wake_queue(dev
);
1163 dev_kfree_skb (skb
);
1165 /* You might need to clean up and record Tx statistics here. */
1166 /* dev->stats.tx_aborted_errors++; */
1169 printk(KERN_DEBUG
"%s: exiting eepro_send_packet routine.\n", dev
->name
);
1171 eepro_en_int(ioaddr
);
1172 spin_unlock_irqrestore(&lp
->lock
, flags
);
1178 /* The typical workload of the driver:
1179 Handle the network interface interrupts. */
1182 eepro_interrupt(int irq
, void *dev_id
)
1184 struct net_device
*dev
= dev_id
;
1185 struct eepro_local
*lp
;
1186 int ioaddr
, status
, boguscount
= 20;
1189 lp
= netdev_priv(dev
);
1191 spin_lock(&lp
->lock
);
1194 printk(KERN_DEBUG
"%s: entering eepro_interrupt routine.\n", dev
->name
);
1196 ioaddr
= dev
->base_addr
;
1198 while (((status
= inb(ioaddr
+ STATUS_REG
)) & (RX_INT
|TX_INT
)) && (boguscount
--))
1201 if (status
& RX_INT
) {
1203 printk(KERN_DEBUG
"%s: packet received interrupt.\n", dev
->name
);
1205 eepro_dis_int(ioaddr
);
1207 /* Get the received packets */
1208 eepro_ack_rx(ioaddr
);
1211 eepro_en_int(ioaddr
);
1213 if (status
& TX_INT
) {
1215 printk(KERN_DEBUG
"%s: packet transmit interrupt.\n", dev
->name
);
1218 eepro_dis_int(ioaddr
);
1220 /* Process the status of transmitted packets */
1221 eepro_ack_tx(ioaddr
);
1222 eepro_transmit_interrupt(dev
);
1224 eepro_en_int(ioaddr
);
1229 printk(KERN_DEBUG
"%s: exiting eepro_interrupt routine.\n", dev
->name
);
1231 spin_unlock(&lp
->lock
);
1232 return IRQ_RETVAL(handled
);
1235 static int eepro_close(struct net_device
*dev
)
1237 struct eepro_local
*lp
= netdev_priv(dev
);
1238 int ioaddr
= dev
->base_addr
;
1241 netif_stop_queue(dev
);
1243 eepro_sw2bank1(ioaddr
); /* Switch back to Bank 1 */
1245 /* Disable the physical interrupt line. */
1246 temp_reg
= inb(ioaddr
+ REG1
);
1247 outb(temp_reg
& 0x7f, ioaddr
+ REG1
);
1249 eepro_sw2bank0(ioaddr
); /* Switch back to Bank 0 */
1251 /* Flush the Tx and disable Rx. */
1252 outb(STOP_RCV_CMD
, ioaddr
);
1253 lp
->tx_start
= lp
->tx_end
= lp
->xmt_lower_limit
;
1256 /* Mask all the interrupts. */
1257 eepro_dis_int(ioaddr
);
1259 /* clear all interrupts */
1260 eepro_clear_int(ioaddr
);
1262 /* Reset the 82595 */
1263 eepro_reset(ioaddr
);
1265 /* release the interrupt */
1266 free_irq(dev
->irq
, dev
);
1268 /* Update the statistics here. What statistics? */
1273 /* Set or clear the multicast filter for this adaptor.
1276 set_multicast_list(struct net_device
*dev
)
1278 struct eepro_local
*lp
= netdev_priv(dev
);
1279 short ioaddr
= dev
->base_addr
;
1280 unsigned short mode
;
1281 struct dev_mc_list
*dmi
=dev
->mc_list
;
1283 if (dev
->flags
&(IFF_ALLMULTI
|IFF_PROMISC
) || dev
->mc_count
> 63)
1286 * We must make the kernel realise we had to move
1287 * into promisc mode or we start all out war on
1288 * the cable. If it was a promisc request the
1289 * flag is already set. If not we assert it.
1291 dev
->flags
|=IFF_PROMISC
;
1293 eepro_sw2bank2(ioaddr
); /* be CAREFUL, BANK 2 now */
1294 mode
= inb(ioaddr
+ REG2
);
1295 outb(mode
| PRMSC_Mode
, ioaddr
+ REG2
);
1296 mode
= inb(ioaddr
+ REG3
);
1297 outb(mode
, ioaddr
+ REG3
); /* writing reg. 3 to complete the update */
1298 eepro_sw2bank0(ioaddr
); /* Return to BANK 0 now */
1301 else if (dev
->mc_count
==0 )
1303 eepro_sw2bank2(ioaddr
); /* be CAREFUL, BANK 2 now */
1304 mode
= inb(ioaddr
+ REG2
);
1305 outb(mode
& 0xd6, ioaddr
+ REG2
); /* Turn off Multi-IA and PRMSC_Mode bits */
1306 mode
= inb(ioaddr
+ REG3
);
1307 outb(mode
, ioaddr
+ REG3
); /* writing reg. 3 to complete the update */
1308 eepro_sw2bank0(ioaddr
); /* Return to BANK 0 now */
1313 unsigned short status
, *eaddrs
;
1314 int i
, boguscount
= 0;
1316 /* Disable RX and TX interrupts. Necessary to avoid
1317 corruption of the HOST_ADDRESS_REG by interrupt
1318 service routines. */
1319 eepro_dis_int(ioaddr
);
1321 eepro_sw2bank2(ioaddr
); /* be CAREFUL, BANK 2 now */
1322 mode
= inb(ioaddr
+ REG2
);
1323 outb(mode
| Multi_IA
, ioaddr
+ REG2
);
1324 mode
= inb(ioaddr
+ REG3
);
1325 outb(mode
, ioaddr
+ REG3
); /* writing reg. 3 to complete the update */
1326 eepro_sw2bank0(ioaddr
); /* Return to BANK 0 now */
1327 outw(lp
->tx_end
, ioaddr
+ HOST_ADDRESS_REG
);
1328 outw(MC_SETUP
, ioaddr
+ IO_PORT
);
1329 outw(0, ioaddr
+ IO_PORT
);
1330 outw(0, ioaddr
+ IO_PORT
);
1331 outw(6*(dev
->mc_count
+ 1), ioaddr
+ IO_PORT
);
1333 for (i
= 0; i
< dev
->mc_count
; i
++)
1335 eaddrs
=(unsigned short *)dmi
->dmi_addr
;
1337 outw(*eaddrs
++, ioaddr
+ IO_PORT
);
1338 outw(*eaddrs
++, ioaddr
+ IO_PORT
);
1339 outw(*eaddrs
++, ioaddr
+ IO_PORT
);
1342 eaddrs
= (unsigned short *) dev
->dev_addr
;
1343 outw(eaddrs
[0], ioaddr
+ IO_PORT
);
1344 outw(eaddrs
[1], ioaddr
+ IO_PORT
);
1345 outw(eaddrs
[2], ioaddr
+ IO_PORT
);
1346 outw(lp
->tx_end
, ioaddr
+ lp
->xmt_bar
);
1347 outb(MC_SETUP
, ioaddr
);
1349 /* Update the transmit queue */
1350 i
= lp
->tx_end
+ XMT_HEADER
+ 6*(dev
->mc_count
+ 1);
1352 if (lp
->tx_start
!= lp
->tx_end
)
1354 /* update the next address and the chain bit in the
1356 outw(lp
->tx_last
+ XMT_CHAIN
, ioaddr
+ HOST_ADDRESS_REG
);
1357 outw(i
, ioaddr
+ IO_PORT
);
1358 outw(lp
->tx_last
+ XMT_COUNT
, ioaddr
+ HOST_ADDRESS_REG
);
1359 status
= inw(ioaddr
+ IO_PORT
);
1360 outw(status
| CHAIN_BIT
, ioaddr
+ IO_PORT
);
1364 lp
->tx_start
= lp
->tx_end
= i
;
1367 /* Acknowledge that the MC setup is done */
1368 do { /* We should be doing this in the eepro_interrupt()! */
1371 if (inb(ioaddr
+ STATUS_REG
) & 0x08)
1374 outb(0x08, ioaddr
+ STATUS_REG
);
1376 if (i
& 0x20) { /* command ABORTed */
1377 printk(KERN_NOTICE
"%s: multicast setup failed.\n",
1380 } else if ((i
& 0x0f) == 0x03) { /* MC-Done */
1381 printk(KERN_DEBUG
"%s: set Rx mode to %d address%s.\n",
1382 dev
->name
, dev
->mc_count
,
1383 dev
->mc_count
> 1 ? "es":"");
1387 } while (++boguscount
< 100);
1389 /* Re-enable RX and TX interrupts */
1390 eepro_en_int(ioaddr
);
1392 if (lp
->eepro
== LAN595FX_10ISA
) {
1393 eepro_complete_selreset(ioaddr
);
1396 eepro_en_rx(ioaddr
);
1399 /* The horrible routine to read a word from the serial EEPROM. */
1400 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1402 /* The delay between EEPROM clock transitions. */
1403 #define eeprom_delay() { udelay(40); }
1404 #define EE_READ_CMD (6 << 6)
1407 read_eeprom(int ioaddr
, int location
, struct net_device
*dev
)
1410 unsigned short retval
= 0;
1411 struct eepro_local
*lp
= netdev_priv(dev
);
1412 short ee_addr
= ioaddr
+ lp
->eeprom_reg
;
1413 int read_cmd
= location
| EE_READ_CMD
;
1414 short ctrl_val
= EECS
;
1416 /* XXXX - black magic */
1417 eepro_sw2bank1(ioaddr
);
1418 outb(0x00, ioaddr
+ STATUS_REG
);
1419 /* XXXX - black magic */
1421 eepro_sw2bank2(ioaddr
);
1422 outb(ctrl_val
, ee_addr
);
1424 /* Shift the read command bits out. */
1425 for (i
= 8; i
>= 0; i
--) {
1426 short outval
= (read_cmd
& (1 << i
)) ? ctrl_val
| EEDI
1428 outb(outval
, ee_addr
);
1429 outb(outval
| EESK
, ee_addr
); /* EEPROM clock tick. */
1431 outb(outval
, ee_addr
); /* Finish EEPROM a clock tick. */
1434 outb(ctrl_val
, ee_addr
);
1436 for (i
= 16; i
> 0; i
--) {
1437 outb(ctrl_val
| EESK
, ee_addr
); eeprom_delay();
1438 retval
= (retval
<< 1) | ((inb(ee_addr
) & EEDO
) ? 1 : 0);
1439 outb(ctrl_val
, ee_addr
); eeprom_delay();
1442 /* Terminate the EEPROM access. */
1444 outb(ctrl_val
| EESK
, ee_addr
);
1446 outb(ctrl_val
, ee_addr
);
1448 eepro_sw2bank0(ioaddr
);
1453 hardware_send_packet(struct net_device
*dev
, void *buf
, short length
)
1455 struct eepro_local
*lp
= netdev_priv(dev
);
1456 short ioaddr
= dev
->base_addr
;
1457 unsigned status
, tx_available
, last
, end
;
1460 printk(KERN_DEBUG
"%s: entering hardware_send_packet routine.\n", dev
->name
);
1462 /* determine how much of the transmit buffer space is available */
1463 if (lp
->tx_end
> lp
->tx_start
)
1464 tx_available
= lp
->xmt_ram
- (lp
->tx_end
- lp
->tx_start
);
1465 else if (lp
->tx_end
< lp
->tx_start
)
1466 tx_available
= lp
->tx_start
- lp
->tx_end
;
1467 else tx_available
= lp
->xmt_ram
;
1469 if (((((length
+ 3) >> 1) << 1) + 2*XMT_HEADER
) >= tx_available
) {
1470 /* No space available ??? */
1475 end
= last
+ (((length
+ 3) >> 1) << 1) + XMT_HEADER
;
1477 if (end
>= lp
->xmt_upper_limit
+ 2) { /* the transmit buffer is wrapped around */
1478 if ((lp
->xmt_upper_limit
+ 2 - last
) <= XMT_HEADER
) {
1479 /* Arrrr!!!, must keep the xmt header together,
1480 several days were lost to chase this one down. */
1481 last
= lp
->xmt_lower_limit
;
1482 end
= last
+ (((length
+ 3) >> 1) << 1) + XMT_HEADER
;
1484 else end
= lp
->xmt_lower_limit
+ (end
-
1485 lp
->xmt_upper_limit
+ 2);
1488 outw(last
, ioaddr
+ HOST_ADDRESS_REG
);
1489 outw(XMT_CMD
, ioaddr
+ IO_PORT
);
1490 outw(0, ioaddr
+ IO_PORT
);
1491 outw(end
, ioaddr
+ IO_PORT
);
1492 outw(length
, ioaddr
+ IO_PORT
);
1494 if (lp
->version
== LAN595
)
1495 outsw(ioaddr
+ IO_PORT
, buf
, (length
+ 3) >> 1);
1496 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1497 unsigned short temp
= inb(ioaddr
+ INT_MASK_REG
);
1498 outb(temp
| IO_32_BIT
, ioaddr
+ INT_MASK_REG
);
1499 outsl(ioaddr
+ IO_PORT_32_BIT
, buf
, (length
+ 3) >> 2);
1500 outb(temp
& ~(IO_32_BIT
), ioaddr
+ INT_MASK_REG
);
1503 /* A dummy read to flush the DRAM write pipeline */
1504 status
= inw(ioaddr
+ IO_PORT
);
1506 if (lp
->tx_start
== lp
->tx_end
) {
1507 outw(last
, ioaddr
+ lp
->xmt_bar
);
1508 outb(XMT_CMD
, ioaddr
);
1509 lp
->tx_start
= last
; /* I don't like to change tx_start here */
1512 /* update the next address and the chain bit in the
1515 if (lp
->tx_end
!= last
) {
1516 outw(lp
->tx_last
+ XMT_CHAIN
, ioaddr
+ HOST_ADDRESS_REG
);
1517 outw(last
, ioaddr
+ IO_PORT
);
1520 outw(lp
->tx_last
+ XMT_COUNT
, ioaddr
+ HOST_ADDRESS_REG
);
1521 status
= inw(ioaddr
+ IO_PORT
);
1522 outw(status
| CHAIN_BIT
, ioaddr
+ IO_PORT
);
1524 /* Continue the transmit command */
1525 outb(RESUME_XMT_CMD
, ioaddr
);
1532 printk(KERN_DEBUG
"%s: exiting hardware_send_packet routine.\n", dev
->name
);
1538 eepro_rx(struct net_device
*dev
)
1540 struct eepro_local
*lp
= netdev_priv(dev
);
1541 short ioaddr
= dev
->base_addr
;
1542 short boguscount
= 20;
1543 short rcv_car
= lp
->rx_start
;
1544 unsigned rcv_event
, rcv_status
, rcv_next_frame
, rcv_size
;
1547 printk(KERN_DEBUG
"%s: entering eepro_rx routine.\n", dev
->name
);
1549 /* Set the read pointer to the start of the RCV */
1550 outw(rcv_car
, ioaddr
+ HOST_ADDRESS_REG
);
1552 rcv_event
= inw(ioaddr
+ IO_PORT
);
1554 while (rcv_event
== RCV_DONE
) {
1556 rcv_status
= inw(ioaddr
+ IO_PORT
);
1557 rcv_next_frame
= inw(ioaddr
+ IO_PORT
);
1558 rcv_size
= inw(ioaddr
+ IO_PORT
);
1560 if ((rcv_status
& (RX_OK
| RX_ERROR
)) == RX_OK
) {
1562 /* Malloc up new buffer. */
1563 struct sk_buff
*skb
;
1565 dev
->stats
.rx_bytes
+=rcv_size
;
1567 skb
= dev_alloc_skb(rcv_size
+5);
1569 printk(KERN_NOTICE
"%s: Memory squeeze, dropping packet.\n", dev
->name
);
1570 dev
->stats
.rx_dropped
++;
1571 rcv_car
= lp
->rx_start
+ RCV_HEADER
+ rcv_size
;
1572 lp
->rx_start
= rcv_next_frame
;
1573 outw(rcv_next_frame
, ioaddr
+ HOST_ADDRESS_REG
);
1579 if (lp
->version
== LAN595
)
1580 insw(ioaddr
+IO_PORT
, skb_put(skb
,rcv_size
), (rcv_size
+ 3) >> 1);
1581 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1582 unsigned short temp
= inb(ioaddr
+ INT_MASK_REG
);
1583 outb(temp
| IO_32_BIT
, ioaddr
+ INT_MASK_REG
);
1584 insl(ioaddr
+IO_PORT_32_BIT
, skb_put(skb
,rcv_size
),
1585 (rcv_size
+ 3) >> 2);
1586 outb(temp
& ~(IO_32_BIT
), ioaddr
+ INT_MASK_REG
);
1589 skb
->protocol
= eth_type_trans(skb
,dev
);
1591 dev
->last_rx
= jiffies
;
1592 dev
->stats
.rx_packets
++;
1595 else { /* Not sure will ever reach here,
1596 I set the 595 to discard bad received frames */
1597 dev
->stats
.rx_errors
++;
1599 if (rcv_status
& 0x0100)
1600 dev
->stats
.rx_over_errors
++;
1602 else if (rcv_status
& 0x0400)
1603 dev
->stats
.rx_frame_errors
++;
1605 else if (rcv_status
& 0x0800)
1606 dev
->stats
.rx_crc_errors
++;
1608 printk(KERN_DEBUG
"%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
1609 dev
->name
, rcv_event
, rcv_status
, rcv_next_frame
, rcv_size
);
1612 if (rcv_status
& 0x1000)
1613 dev
->stats
.rx_length_errors
++;
1615 rcv_car
= lp
->rx_start
+ RCV_HEADER
+ rcv_size
;
1616 lp
->rx_start
= rcv_next_frame
;
1618 if (--boguscount
== 0)
1621 outw(rcv_next_frame
, ioaddr
+ HOST_ADDRESS_REG
);
1622 rcv_event
= inw(ioaddr
+ IO_PORT
);
1626 rcv_car
= lp
->rcv_upper_limit
| 0xff;
1628 outw(rcv_car
- 1, ioaddr
+ RCV_STOP
);
1631 printk(KERN_DEBUG
"%s: exiting eepro_rx routine.\n", dev
->name
);
1635 eepro_transmit_interrupt(struct net_device
*dev
)
1637 struct eepro_local
*lp
= netdev_priv(dev
);
1638 short ioaddr
= dev
->base_addr
;
1639 short boguscount
= 25;
1642 while ((lp
->tx_start
!= lp
->tx_end
) && boguscount
--) {
1644 outw(lp
->tx_start
, ioaddr
+ HOST_ADDRESS_REG
);
1645 xmt_status
= inw(ioaddr
+IO_PORT
);
1647 if (!(xmt_status
& TX_DONE_BIT
))
1650 xmt_status
= inw(ioaddr
+IO_PORT
);
1651 lp
->tx_start
= inw(ioaddr
+IO_PORT
);
1653 netif_wake_queue (dev
);
1655 if (xmt_status
& TX_OK
)
1656 dev
->stats
.tx_packets
++;
1658 dev
->stats
.tx_errors
++;
1659 if (xmt_status
& 0x0400) {
1660 dev
->stats
.tx_carrier_errors
++;
1661 printk(KERN_DEBUG
"%s: carrier error\n",
1663 printk(KERN_DEBUG
"%s: XMT status = %#x\n",
1664 dev
->name
, xmt_status
);
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
);
1673 if (xmt_status
& 0x000f) {
1674 dev
->stats
.collisions
+= (xmt_status
& 0x000f);
1677 if ((xmt_status
& 0x0040) == 0x0) {
1678 dev
->stats
.tx_heartbeat_errors
++;
1683 static int eepro_ethtool_get_settings(struct net_device
*dev
,
1684 struct ethtool_cmd
*cmd
)
1686 struct eepro_local
*lp
= (struct eepro_local
*)dev
->priv
;
1688 cmd
->supported
= SUPPORTED_10baseT_Half
|
1689 SUPPORTED_10baseT_Full
|
1691 cmd
->advertising
= ADVERTISED_10baseT_Half
|
1692 ADVERTISED_10baseT_Full
|
1695 if (GetBit(lp
->word
[5], ee_PortTPE
)) {
1696 cmd
->supported
|= SUPPORTED_TP
;
1697 cmd
->advertising
|= ADVERTISED_TP
;
1699 if (GetBit(lp
->word
[5], ee_PortBNC
)) {
1700 cmd
->supported
|= SUPPORTED_BNC
;
1701 cmd
->advertising
|= ADVERTISED_BNC
;
1703 if (GetBit(lp
->word
[5], ee_PortAUI
)) {
1704 cmd
->supported
|= SUPPORTED_AUI
;
1705 cmd
->advertising
|= ADVERTISED_AUI
;
1708 cmd
->speed
= SPEED_10
;
1710 if (dev
->if_port
== TPE
&& lp
->word
[1] & ee_Duplex
) {
1711 cmd
->duplex
= DUPLEX_FULL
;
1714 cmd
->duplex
= DUPLEX_HALF
;
1717 cmd
->port
= dev
->if_port
;
1718 cmd
->phy_address
= dev
->base_addr
;
1719 cmd
->transceiver
= XCVR_INTERNAL
;
1721 if (lp
->word
[0] & ee_AutoNeg
) {
1728 static void eepro_ethtool_get_drvinfo(struct net_device
*dev
,
1729 struct ethtool_drvinfo
*drvinfo
)
1731 strcpy(drvinfo
->driver
, DRV_NAME
);
1732 strcpy(drvinfo
->version
, DRV_VERSION
);
1733 sprintf(drvinfo
->bus_info
, "ISA 0x%lx", dev
->base_addr
);
1736 static const struct ethtool_ops eepro_ethtool_ops
= {
1737 .get_settings
= eepro_ethtool_get_settings
,
1738 .get_drvinfo
= eepro_ethtool_get_drvinfo
,
1744 static struct net_device
*dev_eepro
[MAX_EEPRO
];
1746 static int io
[MAX_EEPRO
] = {
1747 [0 ... MAX_EEPRO
-1] = -1
1749 static int irq
[MAX_EEPRO
];
1750 static int mem
[MAX_EEPRO
] = { /* Size of the rx buffer in KB */
1751 [0 ... MAX_EEPRO
-1] = RCV_DEFAULT_RAM
/1024
1753 static int autodetect
;
1756 /* For linux 2.1.xx */
1758 MODULE_AUTHOR("Pascal Dupuis and others");
1759 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1760 MODULE_LICENSE("GPL");
1762 module_param_array(io
, int, NULL
, 0);
1763 module_param_array(irq
, int, NULL
, 0);
1764 module_param_array(mem
, int, NULL
, 0);
1765 module_param(autodetect
, int, 0);
1766 MODULE_PARM_DESC(io
, "EtherExpress Pro/10 I/O base addres(es)");
1767 MODULE_PARM_DESC(irq
, "EtherExpress Pro/10 IRQ number(s)");
1768 MODULE_PARM_DESC(mem
, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1769 MODULE_PARM_DESC(autodetect
, "EtherExpress Pro/10 force board(s) detection (0-1)");
1771 int __init
init_module(void)
1773 struct net_device
*dev
;
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");
1780 else if (autodetect
) {
1781 /* if autodetect is set then we must force detection */
1782 for (i
= 0; i
< MAX_EEPRO
; i
++) {
1786 printk(KERN_INFO
"eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1789 for (i
= 0; io
[i
] != -1 && i
< MAX_EEPRO
; i
++) {
1790 dev
= alloc_etherdev(sizeof(struct eepro_local
));
1794 dev
->mem_end
= mem
[i
];
1795 dev
->base_addr
= io
[i
];
1798 if (do_eepro_probe(dev
) == 0) {
1799 dev_eepro
[n_eepro
++] = dev
;
1807 printk(KERN_INFO
"%s", version
);
1809 return n_eepro
? 0 : -ENODEV
;
1813 cleanup_module(void)
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
);