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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */
2/*
3 Written 1996-1999 by Donald Becker.
4
5 This software may be used and distributed according to the terms
6 of the GNU General Public License, incorporated herein by reference.
7
8 This driver is for the 3Com "Vortex" and "Boomerang" series ethercards.
9 Members of the series include Fast EtherLink 3c590/3c592/3c595/3c597
10 and the EtherLink XL 3c900 and 3c905 cards.
11
12 Problem reports and questions should be directed to
13 vortex@scyld.com
14
15 The author may be reached as becker@scyld.com, or C/O
16 Scyld Computing Corporation
17 410 Severn Ave., Suite 210
18 Annapolis MD 21403
19
20 Linux Kernel Additions:
21
22 0.99H+lk0.9 - David S. Miller - softnet, PCI DMA updates
23 0.99H+lk1.0 - Jeff Garzik <jgarzik@pobox.com>
24 Remove compatibility defines for kernel versions < 2.2.x.
25 Update for new 2.3.x module interface
26 LK1.1.2 (March 19, 2000)
27 * New PCI interface (jgarzik)
28
29 LK1.1.3 25 April 2000, Andrew Morton <andrewm@uow.edu.au>
30 - Merged with 3c575_cb.c
31 - Don't set RxComplete in boomerang interrupt enable reg
32 - spinlock in vortex_timer to protect mdio functions
33 - disable local interrupts around call to vortex_interrupt in
34 vortex_tx_timeout() (So vortex_interrupt can use spin_lock())
35 - Select window 3 in vortex_timer()'s write to Wn3_MAC_Ctrl
36 - In vortex_start_xmit(), move the lock to _after_ we've altered
37 vp->cur_tx and vp->tx_full. This defeats the race between
38 vortex_start_xmit() and vortex_interrupt which was identified
39 by Bogdan Costescu.
40 - Merged back support for six new cards from various sources
41 - Set vortex_have_pci if pci_module_init returns zero (fixes cardbus
42 insertion oops)
43 - Tell it that 3c905C has NWAY for 100bT autoneg
44 - Fix handling of SetStatusEnd in 'Too much work..' code, as
45 per 2.3.99's 3c575_cb (Dave Hinds).
46 - Split ISR into two for vortex & boomerang
47 - Fix MOD_INC/DEC races
48 - Handle resource allocation failures.
49 - Fix 3CCFE575CT LED polarity
50 - Make tx_interrupt_mitigation the default
51
52 LK1.1.4 25 April 2000, Andrew Morton <andrewm@uow.edu.au>
53 - Add extra TxReset to vortex_up() to fix 575_cb hotplug initialisation probs.
54 - Put vortex_info_tbl into __devinitdata
55 - In the vortex_error StatsFull HACK, disable stats in vp->intr_enable as well
56 as in the hardware.
57 - Increased the loop counter in issue_and_wait from 2,000 to 4,000.
58
59 LK1.1.5 28 April 2000, andrewm
60 - Added powerpc defines (John Daniel <jdaniel@etresoft.com> said these work...)
61 - Some extra diagnostics
62 - In vortex_error(), reset the Tx on maxCollisions. Otherwise most
63 chips usually get a Tx timeout.
64 - Added extra_reset module parm
65 - Replaced some inline timer manip with mod_timer
66 (Franois romieu <Francois.Romieu@nic.fr>)
67 - In vortex_up(), don't make Wn3_config initialisation dependent upon has_nway
68 (this came across from 3c575_cb).
69
70 LK1.1.6 06 Jun 2000, andrewm
71 - Backed out the PPC defines.
72 - Use del_timer_sync(), mod_timer().
73 - Fix wrapped ulong comparison in boomerang_rx()
74 - Add IS_TORNADO, use it to suppress 3c905C checksum error msg
75 (Donald Becker, I Lee Hetherington <ilh@sls.lcs.mit.edu>)
76 - Replace union wn3_config with BFINS/BFEXT manipulation for
77 sparc64 (Pete Zaitcev, Peter Jones)
78 - In vortex_error, do_tx_reset and vortex_tx_timeout(Vortex):
79 do a netif_wake_queue() to better recover from errors. (Anders Pedersen,
80 Donald Becker)
81 - Print a warning on out-of-memory (rate limited to 1 per 10 secs)
82 - Added two more Cardbus 575 NICs: 5b57 and 6564 (Paul Wagland)
83
84 LK1.1.7 2 Jul 2000 andrewm
85 - Better handling of shared IRQs
86 - Reset the transmitter on a Tx reclaim error
87 - Fixed crash under OOM during vortex_open() (Mark Hemment)
88 - Fix Rx cessation problem during OOM (help from Mark Hemment)
89 - The spinlocks around the mdio access were blocking interrupts for 300uS.
90 Fix all this to use spin_lock_bh() within mdio_read/write
91 - Only write to TxFreeThreshold if it's a boomerang - other NICs don't
92 have one.
93 - Added 802.3x MAC-layer flow control support
94
95 LK1.1.8 13 Aug 2000 andrewm
96 - Ignore request_region() return value - already reserved if Cardbus.
97 - Merged some additional Cardbus flags from Don's 0.99Qk
98 - Some fixes for 3c556 (Fred Maciel)
99 - Fix for EISA initialisation (Jan Rekorajski)
100 - Renamed MII_XCVR_PWR and EEPROM_230 to align with 3c575_cb and D. Becker's drivers
101 - Fixed MII_XCVR_PWR for 3CCFE575CT
102 - Added INVERT_LED_PWR, used it.
103 - Backed out the extra_reset stuff
104
105 LK1.1.9 12 Sep 2000 andrewm
106 - Backed out the tx_reset_resume flags. It was a no-op.
107 - In vortex_error, don't reset the Tx on txReclaim errors
108 - In vortex_error, don't reset the Tx on maxCollisions errors.
109 Hence backed out all the DownListPtr logic here.
110 - In vortex_error, give Tornado cards a partial TxReset on
111 maxCollisions (David Hinds). Defined MAX_COLLISION_RESET for this.
112 - Redid some driver flags and device names based on pcmcia_cs-3.1.20.
113 - Fixed a bug where, if vp->tx_full is set when the interface
114 is downed, it remains set when the interface is upped. Bad
115 things happen.
116
117 LK1.1.10 17 Sep 2000 andrewm
118 - Added EEPROM_8BIT for 3c555 (Fred Maciel)
119 - Added experimental support for the 3c556B Laptop Hurricane (Louis Gerbarg)
120 - Add HAS_NWAY to "3c900 Cyclone 10Mbps TPO"
121
122 LK1.1.11 13 Nov 2000 andrewm
123 - Dump MOD_INC/DEC_USE_COUNT, use SET_MODULE_OWNER
124
125 LK1.1.12 1 Jan 2001 andrewm (2.4.0-pre1)
126 - Call pci_enable_device before we request our IRQ (Tobias Ringstrom)
127 - Add 3c590 PCI latency timer hack to vortex_probe1 (from 0.99Ra)
128 - Added extended issue_and_wait for the 3c905CX.
129 - Look for an MII on PHY index 24 first (3c905CX oddity).
130 - Add HAS_NWAY to 3cSOHO100-TX (Brett Frankenberger)
131 - Don't free skbs we don't own on oom path in vortex_open().
132
133 LK1.1.13 27 Jan 2001
134 - Added explicit `medialock' flag so we can truly
135 lock the media type down with `options'.
136 - "check ioremap return and some tidbits" (Arnaldo Carvalho de Melo <acme@conectiva.com.br>)
137 - Added and used EEPROM_NORESET for 3c556B PM resumes.
138 - Fixed leakage of vp->rx_ring.
139 - Break out separate HAS_HWCKSM device capability flag.
140 - Kill vp->tx_full (ANK)
141 - Merge zerocopy fragment handling (ANK?)
142
143 LK1.1.14 15 Feb 2001
144 - Enable WOL. Can be turned on with `enable_wol' module option.
145 - EISA and PCI initialisation fixes (jgarzik, Manfred Spraul)
146 - If a device's internalconfig register reports it has NWAY,
147 use it, even if autoselect is enabled.
148
149 LK1.1.15 6 June 2001 akpm
150 - Prevent double counting of received bytes (Lars Christensen)
151 - Add ethtool support (jgarzik)
152 - Add module parm descriptions (Andrzej M. Krzysztofowicz)
153 - Implemented alloc_etherdev() API
154 - Special-case the 'Tx error 82' message.
155
156 LK1.1.16 18 July 2001 akpm
157 - Make NETIF_F_SG dependent upon nr_free_highpages(), not on CONFIG_HIGHMEM
158 - Lessen verbosity of bootup messages
159 - Fix WOL - use new PM API functions.
160 - Use netif_running() instead of vp->open in suspend/resume.
161 - Don't reset the interface logic on open/close/rmmod. It upsets
162 autonegotiation, and hence DHCP (from 0.99T).
163 - Back out EEPROM_NORESET flag because of the above (we do it for all
164 NICs).
165 - Correct 3c982 identification string
166 - Rename wait_for_completion() to issue_and_wait() to avoid completion.h
167 clash.
168
169 LK1.1.17 18Dec01 akpm
170 - PCI ID 9805 is a Python-T, not a dual-port Cyclone. Apparently.
171 And it has NWAY.
172 - Mask our advertised modes (vp->advertising) with our capabilities
173 (MII reg5) when deciding which duplex mode to use.
174 - Add `global_options' as default for options[]. Ditto global_enable_wol,
175 global_full_duplex.
176
177 LK1.1.18 01Jul02 akpm
178 - Fix for undocumented transceiver power-up bit on some 3c566B's
179 (Donald Becker, Rahul Karnik)
180
181 - See http://www.zip.com.au/~akpm/linux/#3c59x-2.3 for more details.
182 - Also see Documentation/networking/vortex.txt
183
184 LK1.1.19 10Nov02 Marc Zyngier <maz@wild-wind.fr.eu.org>
185 - EISA sysfs integration.
186*/
187
188/*
189 * FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation
190 * as well as other drivers
191 *
192 * NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k
193 * due to dead code elimination. There will be some performance benefits from this due to
194 * elimination of all the tests and reduced cache footprint.
195 */
196
197
198#define DRV_NAME "3c59x"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
200
201
202/* A few values that may be tweaked. */
203/* Keep the ring sizes a power of two for efficiency. */
204#define TX_RING_SIZE 16
205#define RX_RING_SIZE 32
206#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
207
208/* "Knobs" that adjust features and parameters. */
209/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
210 Setting to > 1512 effectively disables this feature. */
211#ifndef __arm__
212static int rx_copybreak = 200;
213#else
214/* ARM systems perform better by disregarding the bus-master
215 transfer capability of these cards. -- rmk */
216static int rx_copybreak = 1513;
217#endif
218/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
219static const int mtu = 1500;
220/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
221static int max_interrupt_work = 32;
222/* Tx timeout interval (millisecs) */
223static int watchdog = 5000;
224
225/* Allow aggregation of Tx interrupts. Saves CPU load at the cost
226 * of possible Tx stalls if the system is blocking interrupts
227 * somewhere else. Undefine this to disable.
228 */
229#define tx_interrupt_mitigation 1
230
231/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
232#define vortex_debug debug
233#ifdef VORTEX_DEBUG
234static int vortex_debug = VORTEX_DEBUG;
235#else
236static int vortex_debug = 1;
237#endif
238
239#include <linux/config.h>
240#include <linux/module.h>
241#include <linux/kernel.h>
242#include <linux/string.h>
243#include <linux/timer.h>
244#include <linux/errno.h>
245#include <linux/in.h>
246#include <linux/ioport.h>
247#include <linux/slab.h>
248#include <linux/interrupt.h>
249#include <linux/pci.h>
250#include <linux/mii.h>
251#include <linux/init.h>
252#include <linux/netdevice.h>
253#include <linux/etherdevice.h>
254#include <linux/skbuff.h>
255#include <linux/ethtool.h>
256#include <linux/highmem.h>
257#include <linux/eisa.h>
258#include <linux/bitops.h>
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800259#include <linux/jiffies.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260#include <asm/irq.h> /* For NR_IRQS only. */
261#include <asm/io.h>
262#include <asm/uaccess.h>
263
264/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
265 This is only in the support-all-kernels source code. */
266
267#define RUN_AT(x) (jiffies + (x))
268
269#include <linux/delay.h>
270
271
272static char version[] __devinitdata =
273DRV_NAME ": Donald Becker and others. www.scyld.com/network/vortex.html\n";
274
275MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
Steffen Klassert61238602006-03-26 01:37:42 -0800276MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver ");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277MODULE_LICENSE("GPL");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278
279
280/* Operational parameter that usually are not changed. */
281
282/* The Vortex size is twice that of the original EtherLinkIII series: the
283 runtime register window, window 1, is now always mapped in.
284 The Boomerang size is twice as large as the Vortex -- it has additional
285 bus master control registers. */
286#define VORTEX_TOTAL_SIZE 0x20
287#define BOOMERANG_TOTAL_SIZE 0x40
288
289/* Set iff a MII transceiver on any interface requires mdio preamble.
290 This only set with the original DP83840 on older 3c905 boards, so the extra
291 code size of a per-interface flag is not worthwhile. */
292static char mii_preamble_required;
293
294#define PFX DRV_NAME ": "
295
296
297
298/*
299 Theory of Operation
300
301I. Board Compatibility
302
303This device driver is designed for the 3Com FastEtherLink and FastEtherLink
304XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
305versions of the FastEtherLink cards. The supported product IDs are
306 3c590, 3c592, 3c595, 3c597, 3c900, 3c905
307
308The related ISA 3c515 is supported with a separate driver, 3c515.c, included
309with the kernel source or available from
310 cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
311
312II. Board-specific settings
313
314PCI bus devices are configured by the system at boot time, so no jumpers
315need to be set on the board. The system BIOS should be set to assign the
316PCI INTA signal to an otherwise unused system IRQ line.
317
318The EEPROM settings for media type and forced-full-duplex are observed.
319The EEPROM media type should be left at the default "autoselect" unless using
32010base2 or AUI connections which cannot be reliably detected.
321
322III. Driver operation
323
324The 3c59x series use an interface that's very similar to the previous 3c5x9
325series. The primary interface is two programmed-I/O FIFOs, with an
326alternate single-contiguous-region bus-master transfer (see next).
327
328The 3c900 "Boomerang" series uses a full-bus-master interface with separate
329lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
330DEC Tulip and Intel Speedo3. The first chip version retains a compatible
331programmed-I/O interface that has been removed in 'B' and subsequent board
332revisions.
333
334One extension that is advertised in a very large font is that the adapters
335are capable of being bus masters. On the Vortex chip this capability was
336only for a single contiguous region making it far less useful than the full
337bus master capability. There is a significant performance impact of taking
338an extra interrupt or polling for the completion of each transfer, as well
339as difficulty sharing the single transfer engine between the transmit and
340receive threads. Using DMA transfers is a win only with large blocks or
341with the flawed versions of the Intel Orion motherboard PCI controller.
342
343The Boomerang chip's full-bus-master interface is useful, and has the
344currently-unused advantages over other similar chips that queued transmit
345packets may be reordered and receive buffer groups are associated with a
346single frame.
347
348With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
349Rather than a fixed intermediate receive buffer, this scheme allocates
350full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
351the copying breakpoint: it is chosen to trade-off the memory wasted by
352passing the full-sized skbuff to the queue layer for all frames vs. the
353copying cost of copying a frame to a correctly-sized skbuff.
354
355IIIC. Synchronization
356The driver runs as two independent, single-threaded flows of control. One
357is the send-packet routine, which enforces single-threaded use by the
358dev->tbusy flag. The other thread is the interrupt handler, which is single
359threaded by the hardware and other software.
360
361IV. Notes
362
363Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
3643c590, 3c595, and 3c900 boards.
365The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
366the EISA version is called "Demon". According to Terry these names come
367from rides at the local amusement park.
368
369The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
370This driver only supports ethernet packets because of the skbuff allocation
371limit of 4K.
372*/
373
374/* This table drives the PCI probe routines. It's mostly boilerplate in all
375 of the drivers, and will likely be provided by some future kernel.
376*/
377enum pci_flags_bit {
378 PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
379 PCI_ADDR0=0x10<<0, PCI_ADDR1=0x10<<1, PCI_ADDR2=0x10<<2, PCI_ADDR3=0x10<<3,
380};
381
382enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
383 EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
384 HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
385 INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
386 EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
387 EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
388
389enum vortex_chips {
390 CH_3C590 = 0,
391 CH_3C592,
392 CH_3C597,
393 CH_3C595_1,
394 CH_3C595_2,
395
396 CH_3C595_3,
397 CH_3C900_1,
398 CH_3C900_2,
399 CH_3C900_3,
400 CH_3C900_4,
401
402 CH_3C900_5,
403 CH_3C900B_FL,
404 CH_3C905_1,
405 CH_3C905_2,
406 CH_3C905B_1,
407
408 CH_3C905B_2,
409 CH_3C905B_FX,
410 CH_3C905C,
411 CH_3C9202,
412 CH_3C980,
413 CH_3C9805,
414
415 CH_3CSOHO100_TX,
416 CH_3C555,
417 CH_3C556,
418 CH_3C556B,
419 CH_3C575,
420
421 CH_3C575_1,
422 CH_3CCFE575,
423 CH_3CCFE575CT,
424 CH_3CCFE656,
425 CH_3CCFEM656,
426
427 CH_3CCFEM656_1,
428 CH_3C450,
429 CH_3C920,
430 CH_3C982A,
431 CH_3C982B,
432
433 CH_905BT4,
434 CH_920B_EMB_WNM,
435};
436
437
438/* note: this array directly indexed by above enums, and MUST
439 * be kept in sync with both the enums above, and the PCI device
440 * table below
441 */
442static struct vortex_chip_info {
443 const char *name;
444 int flags;
445 int drv_flags;
446 int io_size;
447} vortex_info_tbl[] __devinitdata = {
448 {"3c590 Vortex 10Mbps",
449 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
450 {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
451 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
452 {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
453 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
454 {"3c595 Vortex 100baseTx",
455 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
456 {"3c595 Vortex 100baseT4",
457 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
458
459 {"3c595 Vortex 100base-MII",
460 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
461 {"3c900 Boomerang 10baseT",
462 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
463 {"3c900 Boomerang 10Mbps Combo",
464 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
465 {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
466 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
467 {"3c900 Cyclone 10Mbps Combo",
468 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
469
470 {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
471 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
472 {"3c900B-FL Cyclone 10base-FL",
473 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
474 {"3c905 Boomerang 100baseTx",
475 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
476 {"3c905 Boomerang 100baseT4",
477 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
478 {"3c905B Cyclone 100baseTx",
479 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
480
481 {"3c905B Cyclone 10/100/BNC",
482 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
483 {"3c905B-FX Cyclone 100baseFx",
484 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
485 {"3c905C Tornado",
486 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
487 {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
488 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
489 {"3c980 Cyclone",
490 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
491
492 {"3c980C Python-T",
493 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
494 {"3cSOHO100-TX Hurricane",
495 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
496 {"3c555 Laptop Hurricane",
497 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
498 {"3c556 Laptop Tornado",
499 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
500 HAS_HWCKSM, 128, },
501 {"3c556B Laptop Hurricane",
502 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
503 WNO_XCVR_PWR|HAS_HWCKSM, 128, },
504
505 {"3c575 [Megahertz] 10/100 LAN CardBus",
506 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
507 {"3c575 Boomerang CardBus",
508 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
509 {"3CCFE575BT Cyclone CardBus",
510 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
511 INVERT_LED_PWR|HAS_HWCKSM, 128, },
512 {"3CCFE575CT Tornado CardBus",
513 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
514 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
515 {"3CCFE656 Cyclone CardBus",
516 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
517 INVERT_LED_PWR|HAS_HWCKSM, 128, },
518
519 {"3CCFEM656B Cyclone+Winmodem CardBus",
520 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
521 INVERT_LED_PWR|HAS_HWCKSM, 128, },
522 {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
523 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
524 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
525 {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
526 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
527 {"3c920 Tornado",
528 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
529 {"3c982 Hydra Dual Port A",
530 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
531
532 {"3c982 Hydra Dual Port B",
533 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
534 {"3c905B-T4",
535 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
536 {"3c920B-EMB-WNM Tornado",
537 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
538
539 {NULL,}, /* NULL terminated list. */
540};
541
542
543static struct pci_device_id vortex_pci_tbl[] = {
544 { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
545 { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
546 { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
547 { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
548 { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
549
550 { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
551 { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
552 { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
553 { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
554 { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
555
556 { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
557 { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
558 { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
559 { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
560 { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
561
562 { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
563 { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
564 { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
565 { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
566 { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
567 { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
568
569 { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
570 { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
571 { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
572 { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
573 { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
574
575 { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
576 { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
577 { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
578 { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
579 { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
580
581 { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
582 { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
583 { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
584 { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
585 { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
586
587 { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
588 { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
589
590 {0,} /* 0 terminated list. */
591};
592MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
593
594
595/* Operational definitions.
596 These are not used by other compilation units and thus are not
597 exported in a ".h" file.
598
599 First the windows. There are eight register windows, with the command
600 and status registers available in each.
601 */
John W. Linville62afe592005-11-07 00:58:02 -0800602#define EL3WINDOW(win_num) iowrite16(SelectWindow + (win_num), ioaddr + EL3_CMD)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603#define EL3_CMD 0x0e
604#define EL3_STATUS 0x0e
605
606/* The top five bits written to EL3_CMD are a command, the lower
607 11 bits are the parameter, if applicable.
608 Note that 11 parameters bits was fine for ethernet, but the new chip
609 can handle FDDI length frames (~4500 octets) and now parameters count
610 32-bit 'Dwords' rather than octets. */
611
612enum vortex_cmd {
613 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
614 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
615 UpStall = 6<<11, UpUnstall = (6<<11)+1,
616 DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
617 RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
618 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
619 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
620 SetTxThreshold = 18<<11, SetTxStart = 19<<11,
621 StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
622 StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
623
624/* The SetRxFilter command accepts the following classes: */
625enum RxFilter {
626 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
627
628/* Bits in the general status register. */
629enum vortex_status {
630 IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
631 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
632 IntReq = 0x0040, StatsFull = 0x0080,
633 DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
634 DMAInProgress = 1<<11, /* DMA controller is still busy.*/
635 CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
636};
637
638/* Register window 1 offsets, the window used in normal operation.
639 On the Vortex this window is always mapped at offsets 0x10-0x1f. */
640enum Window1 {
641 TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
642 RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
643 TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
644};
645enum Window0 {
646 Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
647 Wn0EepromData = 12, /* Window 0: EEPROM results register. */
648 IntrStatus=0x0E, /* Valid in all windows. */
649};
650enum Win0_EEPROM_bits {
651 EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
652 EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
653 EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
654};
655/* EEPROM locations. */
656enum eeprom_offset {
657 PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
658 EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
659 NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
660 DriverTune=13, Checksum=15};
661
662enum Window2 { /* Window 2. */
663 Wn2_ResetOptions=12,
664};
665enum Window3 { /* Window 3: MAC/config bits. */
666 Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8,
667};
668
669#define BFEXT(value, offset, bitcount) \
670 ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
671
672#define BFINS(lhs, rhs, offset, bitcount) \
673 (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \
674 (((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
675
676#define RAM_SIZE(v) BFEXT(v, 0, 3)
677#define RAM_WIDTH(v) BFEXT(v, 3, 1)
678#define RAM_SPEED(v) BFEXT(v, 4, 2)
679#define ROM_SIZE(v) BFEXT(v, 6, 2)
680#define RAM_SPLIT(v) BFEXT(v, 16, 2)
681#define XCVR(v) BFEXT(v, 20, 4)
682#define AUTOSELECT(v) BFEXT(v, 24, 1)
683
684enum Window4 { /* Window 4: Xcvr/media bits. */
685 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
686};
687enum Win4_Media_bits {
688 Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
689 Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
690 Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
691 Media_LnkBeat = 0x0800,
692};
693enum Window7 { /* Window 7: Bus Master control. */
694 Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6,
695 Wn7_MasterStatus = 12,
696};
697/* Boomerang bus master control registers. */
698enum MasterCtrl {
699 PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c,
700 TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38,
701};
702
703/* The Rx and Tx descriptor lists.
704 Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
705 alignment contraint on tx_ring[] and rx_ring[]. */
706#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
707#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
708struct boom_rx_desc {
709 u32 next; /* Last entry points to 0. */
710 s32 status;
711 u32 addr; /* Up to 63 addr/len pairs possible. */
712 s32 length; /* Set LAST_FRAG to indicate last pair. */
713};
714/* Values for the Rx status entry. */
715enum rx_desc_status {
716 RxDComplete=0x00008000, RxDError=0x4000,
717 /* See boomerang_rx() for actual error bits */
718 IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27,
719 IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31,
720};
721
722#ifdef MAX_SKB_FRAGS
723#define DO_ZEROCOPY 1
724#else
725#define DO_ZEROCOPY 0
726#endif
727
728struct boom_tx_desc {
729 u32 next; /* Last entry points to 0. */
730 s32 status; /* bits 0:12 length, others see below. */
731#if DO_ZEROCOPY
732 struct {
733 u32 addr;
734 s32 length;
735 } frag[1+MAX_SKB_FRAGS];
736#else
737 u32 addr;
738 s32 length;
739#endif
740};
741
742/* Values for the Tx status entry. */
743enum tx_desc_status {
744 CRCDisable=0x2000, TxDComplete=0x8000,
745 AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000,
746 TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */
747};
748
749/* Chip features we care about in vp->capabilities, read from the EEPROM. */
750enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 };
751
752struct vortex_extra_stats {
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800753 unsigned long tx_deferred;
754 unsigned long tx_max_collisions;
755 unsigned long tx_multiple_collisions;
756 unsigned long tx_single_collisions;
757 unsigned long rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758};
759
760struct vortex_private {
761 /* The Rx and Tx rings should be quad-word-aligned. */
762 struct boom_rx_desc* rx_ring;
763 struct boom_tx_desc* tx_ring;
764 dma_addr_t rx_ring_dma;
765 dma_addr_t tx_ring_dma;
766 /* The addresses of transmit- and receive-in-place skbuffs. */
767 struct sk_buff* rx_skbuff[RX_RING_SIZE];
768 struct sk_buff* tx_skbuff[TX_RING_SIZE];
769 unsigned int cur_rx, cur_tx; /* The next free ring entry */
770 unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
771 struct net_device_stats stats; /* Generic stats */
772 struct vortex_extra_stats xstats; /* NIC-specific extra stats */
773 struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
774 dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
775
776 /* PCI configuration space information. */
777 struct device *gendev;
John W. Linville62afe592005-11-07 00:58:02 -0800778 void __iomem *ioaddr; /* IO address space */
779 void __iomem *cb_fn_base; /* CardBus function status addr space. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
781 /* Some values here only for performance evaluation and path-coverage */
782 int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
783 int card_idx;
784
785 /* The remainder are related to chip state, mostly media selection. */
786 struct timer_list timer; /* Media selection timer. */
787 struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
788 int options; /* User-settable misc. driver options. */
789 unsigned int media_override:4, /* Passed-in media type. */
790 default_media:4, /* Read from the EEPROM/Wn3_Config. */
Steffen Klassert09ce3512006-03-31 02:30:48 -0800791 full_duplex:1, autoselect:1,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792 bus_master:1, /* Vortex can only do a fragment bus-m. */
793 full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
794 flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
795 partner_flow_ctrl:1, /* Partner supports flow control */
796 has_nway:1,
797 enable_wol:1, /* Wake-on-LAN is enabled */
798 pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */
799 open:1,
800 medialock:1,
801 must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */
802 large_frames:1; /* accept large frames */
803 int drv_flags;
804 u16 status_enable;
805 u16 intr_enable;
806 u16 available_media; /* From Wn3_Options. */
807 u16 capabilities, info1, info2; /* Various, from EEPROM. */
808 u16 advertising; /* NWay media advertisement */
809 unsigned char phys[2]; /* MII device addresses. */
810 u16 deferred; /* Resend these interrupts when we
811 * bale from the ISR */
812 u16 io_size; /* Size of PCI region (for release_region) */
813 spinlock_t lock; /* Serialise access to device & its vortex_private */
814 struct mii_if_info mii; /* MII lib hooks/info */
815};
816
817#ifdef CONFIG_PCI
818#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
819#else
820#define DEVICE_PCI(dev) NULL
821#endif
822
823#define VORTEX_PCI(vp) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL)
824
825#ifdef CONFIG_EISA
826#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
827#else
828#define DEVICE_EISA(dev) NULL
829#endif
830
831#define VORTEX_EISA(vp) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL)
832
833/* The action to take with a media selection timer tick.
834 Note that we deviate from the 3Com order by checking 10base2 before AUI.
835 */
836enum xcvr_types {
837 XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
838 XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
839};
840
Arjan van de Venf71e1302006-03-03 21:33:57 -0500841static const struct media_table {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 char *name;
843 unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
844 mask:8, /* The transceiver-present bit in Wn3_Config.*/
845 next:8; /* The media type to try next. */
846 int wait; /* Time before we check media status. */
847} media_tbl[] = {
848 { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
849 { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
850 { "undefined", 0, 0x80, XCVR_10baseT, 10000},
851 { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
852 { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
853 { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
854 { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
855 { "undefined", 0, 0x01, XCVR_10baseT, 10000},
856 { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
857 { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
858 { "Default", 0, 0xFF, XCVR_10baseT, 10000},
859};
860
861static struct {
862 const char str[ETH_GSTRING_LEN];
863} ethtool_stats_keys[] = {
864 { "tx_deferred" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800865 { "tx_max_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 { "tx_multiple_collisions" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800867 { "tx_single_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 { "rx_bad_ssd" },
869};
870
871/* number of ETHTOOL_GSTATS u64's */
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800872#define VORTEX_NUM_STATS 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873
John W. Linville62afe592005-11-07 00:58:02 -0800874static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 int chip_idx, int card_idx);
876static void vortex_up(struct net_device *dev);
877static void vortex_down(struct net_device *dev, int final);
878static int vortex_open(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800879static void mdio_sync(void __iomem *ioaddr, int bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880static int mdio_read(struct net_device *dev, int phy_id, int location);
881static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
882static void vortex_timer(unsigned long arg);
883static void rx_oom_timer(unsigned long arg);
884static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev);
885static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev);
886static int vortex_rx(struct net_device *dev);
887static int boomerang_rx(struct net_device *dev);
888static irqreturn_t vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs);
889static irqreturn_t boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs);
890static int vortex_close(struct net_device *dev);
891static void dump_tx_ring(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800892static void update_stats(void __iomem *ioaddr, struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893static struct net_device_stats *vortex_get_stats(struct net_device *dev);
894static void set_rx_mode(struct net_device *dev);
895#ifdef CONFIG_PCI
896static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
897#endif
898static void vortex_tx_timeout(struct net_device *dev);
899static void acpi_set_WOL(struct net_device *dev);
900static struct ethtool_ops vortex_ethtool_ops;
901static void set_8021q_mode(struct net_device *dev, int enable);
902
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
904/* Option count limit only -- unlimited interfaces are supported. */
905#define MAX_UNITS 8
John W. Linville9954ab72005-11-07 00:58:06 -0800906static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 };
907static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
908static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
909static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
910static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
John W. Linville900fd172005-11-07 00:58:08 -0800911static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912static int global_options = -1;
913static int global_full_duplex = -1;
914static int global_enable_wol = -1;
John W. Linville900fd172005-11-07 00:58:08 -0800915static int global_use_mmio = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917/* Variables to work-around the Compaq PCI BIOS32 problem. */
918static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
919static struct net_device *compaq_net_device;
920
921static int vortex_cards_found;
922
923module_param(debug, int, 0);
924module_param(global_options, int, 0);
925module_param_array(options, int, NULL, 0);
926module_param(global_full_duplex, int, 0);
927module_param_array(full_duplex, int, NULL, 0);
928module_param_array(hw_checksums, int, NULL, 0);
929module_param_array(flow_ctrl, int, NULL, 0);
930module_param(global_enable_wol, int, 0);
931module_param_array(enable_wol, int, NULL, 0);
932module_param(rx_copybreak, int, 0);
933module_param(max_interrupt_work, int, 0);
934module_param(compaq_ioaddr, int, 0);
935module_param(compaq_irq, int, 0);
936module_param(compaq_device_id, int, 0);
937module_param(watchdog, int, 0);
John W. Linville900fd172005-11-07 00:58:08 -0800938module_param(global_use_mmio, int, 0);
939module_param_array(use_mmio, int, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
941MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
942MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
943MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800944MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if full_duplex is unset");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
946MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
947MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800948MODULE_PARM_DESC(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if enable_wol is unset");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
950MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
951MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
952MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
953MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
954MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
John W. Linville900fd172005-11-07 00:58:08 -0800955MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset");
956MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
958#ifdef CONFIG_NET_POLL_CONTROLLER
959static void poll_vortex(struct net_device *dev)
960{
961 struct vortex_private *vp = netdev_priv(dev);
962 unsigned long flags;
963 local_save_flags(flags);
964 local_irq_disable();
965 (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev,NULL);
966 local_irq_restore(flags);
967}
968#endif
969
970#ifdef CONFIG_PM
971
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800972static int vortex_suspend(struct pci_dev *pdev, pm_message_t state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973{
974 struct net_device *dev = pci_get_drvdata(pdev);
975
976 if (dev && dev->priv) {
977 if (netif_running(dev)) {
978 netif_device_detach(dev);
979 vortex_down(dev, 1);
980 }
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700981 pci_save_state(pdev);
982 pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
983 free_irq(dev->irq, dev);
984 pci_disable_device(pdev);
985 pci_set_power_state(pdev, pci_choose_state(pdev, state));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 }
987 return 0;
988}
989
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800990static int vortex_resume(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991{
992 struct net_device *dev = pci_get_drvdata(pdev);
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700993 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700995 if (dev && vp) {
996 pci_set_power_state(pdev, PCI_D0);
997 pci_restore_state(pdev);
998 pci_enable_device(pdev);
999 pci_set_master(pdev);
1000 if (request_irq(dev->irq, vp->full_bus_master_rx ?
1001 &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev)) {
1002 printk(KERN_WARNING "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
1003 pci_disable_device(pdev);
1004 return -EBUSY;
1005 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006 if (netif_running(dev)) {
1007 vortex_up(dev);
1008 netif_device_attach(dev);
1009 }
1010 }
1011 return 0;
1012}
1013
1014#endif /* CONFIG_PM */
1015
1016#ifdef CONFIG_EISA
1017static struct eisa_device_id vortex_eisa_ids[] = {
1018 { "TCM5920", CH_3C592 },
1019 { "TCM5970", CH_3C597 },
1020 { "" }
1021};
1022
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001023static int vortex_eisa_probe(struct device *device);
1024static int vortex_eisa_remove(struct device *device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
1026static struct eisa_driver vortex_eisa_driver = {
1027 .id_table = vortex_eisa_ids,
1028 .driver = {
1029 .name = "3c59x",
1030 .probe = vortex_eisa_probe,
1031 .remove = vortex_eisa_remove
1032 }
1033};
1034
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001035static int vortex_eisa_probe(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036{
John W. Linville62afe592005-11-07 00:58:02 -08001037 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 struct eisa_device *edev;
1039
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001040 edev = to_eisa_device(device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
John W. Linville62afe592005-11-07 00:58:02 -08001042 if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 return -EBUSY;
1044
John W. Linville62afe592005-11-07 00:58:02 -08001045 ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
1046
1047 if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048 edev->id.driver_data, vortex_cards_found)) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001049 release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 return -ENODEV;
1051 }
1052
1053 vortex_cards_found++;
1054
1055 return 0;
1056}
1057
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001058static int vortex_eisa_remove(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059{
1060 struct eisa_device *edev;
1061 struct net_device *dev;
1062 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08001063 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001065 edev = to_eisa_device(device);
1066 dev = eisa_get_drvdata(edev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067
1068 if (!dev) {
1069 printk("vortex_eisa_remove called for Compaq device!\n");
1070 BUG();
1071 }
1072
1073 vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001074 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001076 unregister_netdev(dev);
1077 iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
1078 release_region(dev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001080 free_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 return 0;
1082}
1083#endif
1084
1085/* returns count found (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001086static int __init vortex_eisa_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087{
1088 int eisa_found = 0;
1089 int orig_cards_found = vortex_cards_found;
1090
1091#ifdef CONFIG_EISA
Bjorn Helgaasc2f6fab2006-03-25 03:07:19 -08001092 int err;
1093
1094 err = eisa_driver_register (&vortex_eisa_driver);
1095 if (!err) {
1096 /*
1097 * Because of the way EISA bus is probed, we cannot assume
1098 * any device have been found when we exit from
1099 * eisa_driver_register (the bus root driver may not be
1100 * initialized yet). So we blindly assume something was
1101 * found, and let the sysfs magic happend...
1102 */
1103 eisa_found = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104 }
1105#endif
1106
1107 /* Special code to work-around the Compaq PCI BIOS32 problem. */
1108 if (compaq_ioaddr) {
John W. Linville62afe592005-11-07 00:58:02 -08001109 vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
1110 compaq_irq, compaq_device_id, vortex_cards_found++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 }
1112
1113 return vortex_cards_found - orig_cards_found + eisa_found;
1114}
1115
1116/* returns count (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001117static int __devinit vortex_init_one(struct pci_dev *pdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118 const struct pci_device_id *ent)
1119{
John W. Linville900fd172005-11-07 00:58:08 -08001120 int rc, unit, pci_bar;
1121 struct vortex_chip_info *vci;
1122 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123
1124 /* wake up and enable device */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001125 rc = pci_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 if (rc < 0)
1127 goto out;
1128
John W. Linville900fd172005-11-07 00:58:08 -08001129 unit = vortex_cards_found;
1130
1131 if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
1132 /* Determine the default if the user didn't override us */
1133 vci = &vortex_info_tbl[ent->driver_data];
1134 pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0;
1135 } else if (unit < MAX_UNITS && use_mmio[unit] >= 0)
1136 pci_bar = use_mmio[unit] ? 1 : 0;
1137 else
1138 pci_bar = global_use_mmio ? 1 : 0;
1139
1140 ioaddr = pci_iomap(pdev, pci_bar, 0);
1141 if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
1142 ioaddr = pci_iomap(pdev, 0, 0);
1143
1144 rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
1145 ent->driver_data, unit);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 if (rc < 0) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001147 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148 goto out;
1149 }
1150
1151 vortex_cards_found++;
1152
1153out:
1154 return rc;
1155}
1156
1157/*
1158 * Start up the PCI/EISA device which is described by *gendev.
1159 * Return 0 on success.
1160 *
1161 * NOTE: pdev can be NULL, for the case of a Compaq device
1162 */
1163static int __devinit vortex_probe1(struct device *gendev,
John W. Linville62afe592005-11-07 00:58:02 -08001164 void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165 int chip_idx, int card_idx)
1166{
1167 struct vortex_private *vp;
1168 int option;
1169 unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
1170 int i, step;
1171 struct net_device *dev;
1172 static int printed_version;
1173 int retval, print_info;
1174 struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
1175 char *print_name = "3c59x";
1176 struct pci_dev *pdev = NULL;
1177 struct eisa_device *edev = NULL;
1178
1179 if (!printed_version) {
1180 printk (version);
1181 printed_version = 1;
1182 }
1183
1184 if (gendev) {
1185 if ((pdev = DEVICE_PCI(gendev))) {
1186 print_name = pci_name(pdev);
1187 }
1188
1189 if ((edev = DEVICE_EISA(gendev))) {
1190 print_name = edev->dev.bus_id;
1191 }
1192 }
1193
1194 dev = alloc_etherdev(sizeof(*vp));
1195 retval = -ENOMEM;
1196 if (!dev) {
1197 printk (KERN_ERR PFX "unable to allocate etherdev, aborting\n");
1198 goto out;
1199 }
1200 SET_MODULE_OWNER(dev);
1201 SET_NETDEV_DEV(dev, gendev);
1202 vp = netdev_priv(dev);
1203
1204 option = global_options;
1205
1206 /* The lower four bits are the media type. */
1207 if (dev->mem_start) {
1208 /*
1209 * The 'options' param is passed in as the third arg to the
1210 * LILO 'ether=' argument for non-modular use
1211 */
1212 option = dev->mem_start;
1213 }
1214 else if (card_idx < MAX_UNITS) {
1215 if (options[card_idx] >= 0)
1216 option = options[card_idx];
1217 }
1218
1219 if (option > 0) {
1220 if (option & 0x8000)
1221 vortex_debug = 7;
1222 if (option & 0x4000)
1223 vortex_debug = 2;
1224 if (option & 0x0400)
1225 vp->enable_wol = 1;
1226 }
1227
1228 print_info = (vortex_debug > 1);
1229 if (print_info)
1230 printk (KERN_INFO "See Documentation/networking/vortex.txt\n");
1231
Steffen Klassert61238602006-03-26 01:37:42 -08001232 printk(KERN_INFO "%s: 3Com %s %s at %p.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233 print_name,
1234 pdev ? "PCI" : "EISA",
1235 vci->name,
1236 ioaddr);
1237
John W. Linville62afe592005-11-07 00:58:02 -08001238 dev->base_addr = (unsigned long)ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 dev->irq = irq;
1240 dev->mtu = mtu;
John W. Linville62afe592005-11-07 00:58:02 -08001241 vp->ioaddr = ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 vp->large_frames = mtu > 1500;
1243 vp->drv_flags = vci->drv_flags;
1244 vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
1245 vp->io_size = vci->io_size;
1246 vp->card_idx = card_idx;
1247
1248 /* module list only for Compaq device */
1249 if (gendev == NULL) {
1250 compaq_net_device = dev;
1251 }
1252
1253 /* PCI-only startup logic */
1254 if (pdev) {
1255 /* EISA resources already marked, so only PCI needs to do this here */
1256 /* Ignore return value, because Cardbus drivers already allocate for us */
John W. Linville62afe592005-11-07 00:58:02 -08001257 if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 vp->must_free_region = 1;
1259
1260 /* enable bus-mastering if necessary */
1261 if (vci->flags & PCI_USES_MASTER)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001262 pci_set_master(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263
1264 if (vci->drv_flags & IS_VORTEX) {
1265 u8 pci_latency;
1266 u8 new_latency = 248;
1267
1268 /* Check the PCI latency value. On the 3c590 series the latency timer
1269 must be set to the maximum value to avoid data corruption that occurs
1270 when the timer expires during a transfer. This bug exists the Vortex
1271 chip only. */
1272 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
1273 if (pci_latency < new_latency) {
1274 printk(KERN_INFO "%s: Overriding PCI latency"
1275 " timer (CFLT) setting of %d, new value is %d.\n",
1276 print_name, pci_latency, new_latency);
1277 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
1278 }
1279 }
1280 }
1281
1282 spin_lock_init(&vp->lock);
1283 vp->gendev = gendev;
1284 vp->mii.dev = dev;
1285 vp->mii.mdio_read = mdio_read;
1286 vp->mii.mdio_write = mdio_write;
1287 vp->mii.phy_id_mask = 0x1f;
1288 vp->mii.reg_num_mask = 0x1f;
1289
1290 /* Makes sure rings are at least 16 byte aligned. */
1291 vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
1292 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1293 &vp->rx_ring_dma);
1294 retval = -ENOMEM;
1295 if (vp->rx_ring == 0)
1296 goto free_region;
1297
1298 vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
1299 vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
1300
1301 /* if we are a PCI driver, we store info in pdev->driver_data
1302 * instead of a module list */
1303 if (pdev)
1304 pci_set_drvdata(pdev, dev);
1305 if (edev)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001306 eisa_set_drvdata(edev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307
1308 vp->media_override = 7;
1309 if (option >= 0) {
1310 vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
1311 if (vp->media_override != 7)
1312 vp->medialock = 1;
1313 vp->full_duplex = (option & 0x200) ? 1 : 0;
1314 vp->bus_master = (option & 16) ? 1 : 0;
1315 }
1316
1317 if (global_full_duplex > 0)
1318 vp->full_duplex = 1;
1319 if (global_enable_wol > 0)
1320 vp->enable_wol = 1;
1321
1322 if (card_idx < MAX_UNITS) {
1323 if (full_duplex[card_idx] > 0)
1324 vp->full_duplex = 1;
1325 if (flow_ctrl[card_idx] > 0)
1326 vp->flow_ctrl = 1;
1327 if (enable_wol[card_idx] > 0)
1328 vp->enable_wol = 1;
1329 }
1330
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001331 vp->mii.force_media = vp->full_duplex;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 vp->options = option;
1333 /* Read the station address from the EEPROM. */
1334 EL3WINDOW(0);
1335 {
1336 int base;
1337
1338 if (vci->drv_flags & EEPROM_8BIT)
1339 base = 0x230;
1340 else if (vci->drv_flags & EEPROM_OFFSET)
1341 base = EEPROM_Read + 0x30;
1342 else
1343 base = EEPROM_Read;
1344
1345 for (i = 0; i < 0x40; i++) {
1346 int timer;
John W. Linville62afe592005-11-07 00:58:02 -08001347 iowrite16(base + i, ioaddr + Wn0EepromCmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 /* Pause for at least 162 us. for the read to take place. */
1349 for (timer = 10; timer >= 0; timer--) {
1350 udelay(162);
John W. Linville62afe592005-11-07 00:58:02 -08001351 if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 break;
1353 }
John W. Linville62afe592005-11-07 00:58:02 -08001354 eeprom[i] = ioread16(ioaddr + Wn0EepromData);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 }
1356 }
1357 for (i = 0; i < 0x18; i++)
1358 checksum ^= eeprom[i];
1359 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1360 if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
1361 while (i < 0x21)
1362 checksum ^= eeprom[i++];
1363 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1364 }
1365 if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO))
1366 printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
1367 for (i = 0; i < 3; i++)
1368 ((u16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
John W. Linvillebb531fc2005-11-07 00:58:07 -08001369 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370 if (print_info) {
1371 for (i = 0; i < 6; i++)
1372 printk("%c%2.2x", i ? ':' : ' ', dev->dev_addr[i]);
1373 }
1374 /* Unfortunately an all zero eeprom passes the checksum and this
1375 gets found in the wild in failure cases. Crypto is hard 8) */
1376 if (!is_valid_ether_addr(dev->dev_addr)) {
1377 retval = -EINVAL;
1378 printk(KERN_ERR "*** EEPROM MAC address is invalid.\n");
1379 goto free_ring; /* With every pack */
1380 }
1381 EL3WINDOW(2);
1382 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001383 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384
1385#ifdef __sparc__
1386 if (print_info)
1387 printk(", IRQ %s\n", __irq_itoa(dev->irq));
1388#else
1389 if (print_info)
1390 printk(", IRQ %d\n", dev->irq);
1391 /* Tell them about an invalid IRQ. */
1392 if (dev->irq <= 0 || dev->irq >= NR_IRQS)
1393 printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***\n",
1394 dev->irq);
1395#endif
1396
1397 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001398 step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 if (print_info) {
1400 printk(KERN_INFO " product code %02x%02x rev %02x.%d date %02d-"
1401 "%02d-%02d\n", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
1402 step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
1403 }
1404
1405
1406 if (pdev && vci->drv_flags & HAS_CB_FNS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407 unsigned short n;
1408
John W. Linville62afe592005-11-07 00:58:02 -08001409 vp->cb_fn_base = pci_iomap(pdev, 2, 0);
1410 if (!vp->cb_fn_base) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 retval = -ENOMEM;
John W. Linville62afe592005-11-07 00:58:02 -08001412 goto free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413 }
John W. Linville62afe592005-11-07 00:58:02 -08001414
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 if (print_info) {
1416 printk(KERN_INFO "%s: CardBus functions mapped %8.8lx->%p\n",
John W. Linville62afe592005-11-07 00:58:02 -08001417 print_name, pci_resource_start(pdev, 2),
1418 vp->cb_fn_base);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 }
1420 EL3WINDOW(2);
1421
John W. Linville62afe592005-11-07 00:58:02 -08001422 n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423 if (vp->drv_flags & INVERT_LED_PWR)
1424 n |= 0x10;
1425 if (vp->drv_flags & INVERT_MII_PWR)
1426 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001427 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 if (vp->drv_flags & WNO_XCVR_PWR) {
1429 EL3WINDOW(0);
John W. Linville62afe592005-11-07 00:58:02 -08001430 iowrite16(0x0800, ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431 }
1432 }
1433
1434 /* Extract our information from the EEPROM data. */
1435 vp->info1 = eeprom[13];
1436 vp->info2 = eeprom[15];
1437 vp->capabilities = eeprom[16];
1438
1439 if (vp->info1 & 0x8000) {
1440 vp->full_duplex = 1;
1441 if (print_info)
1442 printk(KERN_INFO "Full duplex capable\n");
1443 }
1444
1445 {
Arjan van de Venf71e1302006-03-03 21:33:57 -05001446 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447 unsigned int config;
1448 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001449 vp->available_media = ioread16(ioaddr + Wn3_Options);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450 if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
1451 vp->available_media = 0x40;
John W. Linville62afe592005-11-07 00:58:02 -08001452 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 if (print_info) {
1454 printk(KERN_DEBUG " Internal config register is %4.4x, "
John W. Linville62afe592005-11-07 00:58:02 -08001455 "transceivers %#x.\n", config, ioread16(ioaddr + Wn3_Options));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
1457 8 << RAM_SIZE(config),
1458 RAM_WIDTH(config) ? "word" : "byte",
1459 ram_split[RAM_SPLIT(config)],
1460 AUTOSELECT(config) ? "autoselect/" : "",
1461 XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
1462 media_tbl[XCVR(config)].name);
1463 }
1464 vp->default_media = XCVR(config);
1465 if (vp->default_media == XCVR_NWAY)
1466 vp->has_nway = 1;
1467 vp->autoselect = AUTOSELECT(config);
1468 }
1469
1470 if (vp->media_override != 7) {
1471 printk(KERN_INFO "%s: Media override to transceiver type %d (%s).\n",
1472 print_name, vp->media_override,
1473 media_tbl[vp->media_override].name);
1474 dev->if_port = vp->media_override;
1475 } else
1476 dev->if_port = vp->default_media;
1477
1478 if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
1479 dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1480 int phy, phy_idx = 0;
1481 EL3WINDOW(4);
1482 mii_preamble_required++;
1483 if (vp->drv_flags & EXTRA_PREAMBLE)
1484 mii_preamble_required++;
1485 mdio_sync(ioaddr, 32);
Neil Horman106427e2005-11-07 00:58:03 -08001486 mdio_read(dev, 24, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487 for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
1488 int mii_status, phyx;
1489
1490 /*
1491 * For the 3c905CX we look at index 24 first, because it bogusly
1492 * reports an external PHY at all indices
1493 */
1494 if (phy == 0)
1495 phyx = 24;
1496 else if (phy <= 24)
1497 phyx = phy - 1;
1498 else
1499 phyx = phy;
Neil Horman106427e2005-11-07 00:58:03 -08001500 mii_status = mdio_read(dev, phyx, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501 if (mii_status && mii_status != 0xffff) {
1502 vp->phys[phy_idx++] = phyx;
1503 if (print_info) {
1504 printk(KERN_INFO " MII transceiver found at address %d,"
1505 " status %4x.\n", phyx, mii_status);
1506 }
1507 if ((mii_status & 0x0040) == 0)
1508 mii_preamble_required++;
1509 }
1510 }
1511 mii_preamble_required--;
1512 if (phy_idx == 0) {
1513 printk(KERN_WARNING" ***WARNING*** No MII transceivers found!\n");
1514 vp->phys[0] = 24;
1515 } else {
Neil Horman106427e2005-11-07 00:58:03 -08001516 vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517 if (vp->full_duplex) {
1518 /* Only advertise the FD media types. */
1519 vp->advertising &= ~0x02A0;
1520 mdio_write(dev, vp->phys[0], 4, vp->advertising);
1521 }
1522 }
1523 vp->mii.phy_id = vp->phys[0];
1524 }
1525
1526 if (vp->capabilities & CapBusMaster) {
1527 vp->full_bus_master_tx = 1;
1528 if (print_info) {
1529 printk(KERN_INFO " Enabling bus-master transmits and %s receives.\n",
1530 (vp->info2 & 1) ? "early" : "whole-frame" );
1531 }
1532 vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
1533 vp->bus_master = 0; /* AKPM: vortex only */
1534 }
1535
1536 /* The 3c59x-specific entries in the device structure. */
1537 dev->open = vortex_open;
1538 if (vp->full_bus_master_tx) {
1539 dev->hard_start_xmit = boomerang_start_xmit;
1540 /* Actually, it still should work with iommu. */
John W. Linville32fb5f02005-11-07 00:58:05 -08001541 if (card_idx < MAX_UNITS &&
1542 ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
1543 hw_checksums[card_idx] == 1)) {
Stephen Hemmingerd311b0d2005-11-07 00:58:09 -08001544 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001545 }
1546 } else {
1547 dev->hard_start_xmit = vortex_start_xmit;
1548 }
1549
1550 if (print_info) {
1551 printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabled\n",
1552 print_name,
1553 (dev->features & NETIF_F_SG) ? "en":"dis",
1554 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1555 }
1556
1557 dev->stop = vortex_close;
1558 dev->get_stats = vortex_get_stats;
1559#ifdef CONFIG_PCI
1560 dev->do_ioctl = vortex_ioctl;
1561#endif
1562 dev->ethtool_ops = &vortex_ethtool_ops;
1563 dev->set_multicast_list = set_rx_mode;
1564 dev->tx_timeout = vortex_tx_timeout;
1565 dev->watchdog_timeo = (watchdog * HZ) / 1000;
1566#ifdef CONFIG_NET_POLL_CONTROLLER
1567 dev->poll_controller = poll_vortex;
1568#endif
1569 if (pdev) {
1570 vp->pm_state_valid = 1;
1571 pci_save_state(VORTEX_PCI(vp));
1572 acpi_set_WOL(dev);
1573 }
1574 retval = register_netdev(dev);
1575 if (retval == 0)
1576 return 0;
1577
1578free_ring:
1579 pci_free_consistent(pdev,
1580 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1581 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1582 vp->rx_ring,
1583 vp->rx_ring_dma);
1584free_region:
1585 if (vp->must_free_region)
John W. Linville62afe592005-11-07 00:58:02 -08001586 release_region(dev->base_addr, vci->io_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 free_netdev(dev);
1588 printk(KERN_ERR PFX "vortex_probe1 fails. Returns %d\n", retval);
1589out:
1590 return retval;
1591}
1592
1593static void
1594issue_and_wait(struct net_device *dev, int cmd)
1595{
John W. Linville62afe592005-11-07 00:58:02 -08001596 struct vortex_private *vp = netdev_priv(dev);
1597 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598 int i;
1599
John W. Linville62afe592005-11-07 00:58:02 -08001600 iowrite16(cmd, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601 for (i = 0; i < 2000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001602 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603 return;
1604 }
1605
1606 /* OK, that didn't work. Do it the slow way. One second */
1607 for (i = 0; i < 100000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001608 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 if (vortex_debug > 1)
1610 printk(KERN_INFO "%s: command 0x%04x took %d usecs\n",
1611 dev->name, cmd, i * 10);
1612 return;
1613 }
1614 udelay(10);
1615 }
1616 printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001617 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618}
1619
1620static void
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001621vortex_set_duplex(struct net_device *dev)
1622{
1623 struct vortex_private *vp = netdev_priv(dev);
1624 void __iomem *ioaddr = vp->ioaddr;
1625
1626 printk(KERN_INFO "%s: setting %s-duplex.\n",
1627 dev->name, (vp->full_duplex) ? "full" : "half");
1628
1629 EL3WINDOW(3);
1630 /* Set the full-duplex bit. */
1631 iowrite16(((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
1632 (vp->large_frames ? 0x40 : 0) |
1633 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
1634 0x100 : 0),
1635 ioaddr + Wn3_MAC_Ctrl);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001636}
1637
1638static void vortex_check_media(struct net_device *dev, unsigned int init)
1639{
1640 struct vortex_private *vp = netdev_priv(dev);
1641 unsigned int ok_to_print = 0;
1642
1643 if (vortex_debug > 3)
1644 ok_to_print = 1;
1645
1646 if (mii_check_media(&vp->mii, ok_to_print, init)) {
1647 vp->full_duplex = vp->mii.full_duplex;
1648 vortex_set_duplex(dev);
1649 } else if (init) {
1650 vortex_set_duplex(dev);
1651 }
1652}
1653
1654static void
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655vortex_up(struct net_device *dev)
1656{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001658 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659 unsigned int config;
Steffen Klassert09ce3512006-03-31 02:30:48 -08001660 int i, mii_reg1, mii_reg5;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661
1662 if (VORTEX_PCI(vp)) {
1663 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001664 if (vp->pm_state_valid)
1665 pci_restore_state(VORTEX_PCI(vp));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666 pci_enable_device(VORTEX_PCI(vp));
1667 }
1668
1669 /* Before initializing select the active media port. */
1670 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001671 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672
1673 if (vp->media_override != 7) {
1674 printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
1675 dev->name, vp->media_override,
1676 media_tbl[vp->media_override].name);
1677 dev->if_port = vp->media_override;
1678 } else if (vp->autoselect) {
1679 if (vp->has_nway) {
1680 if (vortex_debug > 1)
1681 printk(KERN_INFO "%s: using NWAY device table, not %d\n",
1682 dev->name, dev->if_port);
1683 dev->if_port = XCVR_NWAY;
1684 } else {
1685 /* Find first available media type, starting with 100baseTx. */
1686 dev->if_port = XCVR_100baseTx;
1687 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1688 dev->if_port = media_tbl[dev->if_port].next;
1689 if (vortex_debug > 1)
1690 printk(KERN_INFO "%s: first available media type: %s\n",
1691 dev->name, media_tbl[dev->if_port].name);
1692 }
1693 } else {
1694 dev->if_port = vp->default_media;
1695 if (vortex_debug > 1)
1696 printk(KERN_INFO "%s: using default media %s\n",
1697 dev->name, media_tbl[dev->if_port].name);
1698 }
1699
1700 init_timer(&vp->timer);
1701 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1702 vp->timer.data = (unsigned long)dev;
1703 vp->timer.function = vortex_timer; /* timer handler */
1704 add_timer(&vp->timer);
1705
1706 init_timer(&vp->rx_oom_timer);
1707 vp->rx_oom_timer.data = (unsigned long)dev;
1708 vp->rx_oom_timer.function = rx_oom_timer;
1709
1710 if (vortex_debug > 1)
1711 printk(KERN_DEBUG "%s: Initial media type %s.\n",
1712 dev->name, media_tbl[dev->if_port].name);
1713
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001714 vp->full_duplex = vp->mii.force_media;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715 config = BFINS(config, dev->if_port, 20, 4);
1716 if (vortex_debug > 6)
1717 printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
John W. Linville62afe592005-11-07 00:58:02 -08001718 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719
1720 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 EL3WINDOW(4);
Steffen Klassert09ce3512006-03-31 02:30:48 -08001722 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1723 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
1724 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
1725
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001726 vortex_check_media(dev, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 }
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001728 else
1729 vortex_set_duplex(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730
Steffen Klassert09ce3512006-03-31 02:30:48 -08001731 issue_and_wait(dev, TxReset);
1732 /*
1733 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1734 */
1735 issue_and_wait(dev, RxReset|0x04);
1736
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737
John W. Linville62afe592005-11-07 00:58:02 -08001738 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739
1740 if (vortex_debug > 1) {
1741 EL3WINDOW(4);
1742 printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001743 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744 }
1745
1746 /* Set the station address and mask in window 2 each time opened. */
1747 EL3WINDOW(2);
1748 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001749 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 for (; i < 12; i+=2)
John W. Linville62afe592005-11-07 00:58:02 -08001751 iowrite16(0, ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752
1753 if (vp->cb_fn_base) {
John W. Linville62afe592005-11-07 00:58:02 -08001754 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 if (vp->drv_flags & INVERT_LED_PWR)
1756 n |= 0x10;
1757 if (vp->drv_flags & INVERT_MII_PWR)
1758 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001759 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001760 }
1761
1762 if (dev->if_port == XCVR_10base2)
1763 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001764 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 if (dev->if_port != XCVR_NWAY) {
1766 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001767 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1769 }
1770
1771 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001772 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773 EL3WINDOW(6);
1774 for (i = 0; i < 10; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001775 ioread8(ioaddr + i);
1776 ioread16(ioaddr + 10);
1777 ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 /* New: On the Vortex we must also clear the BadSSD counter. */
1779 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001780 ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 /* ..and on the Boomerang we enable the extra statistics bits. */
John W. Linville62afe592005-11-07 00:58:02 -08001782 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783
1784 /* Switch to register set 7 for normal use. */
1785 EL3WINDOW(7);
1786
1787 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1788 vp->cur_rx = vp->dirty_rx = 0;
1789 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001790 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1791 iowrite32(0x0020, ioaddr + PktStatus);
1792 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 }
1794 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1795 vp->cur_tx = vp->dirty_tx = 0;
1796 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001797 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798 /* Clear the Rx, Tx rings. */
1799 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1800 vp->rx_ring[i].status = 0;
1801 for (i = 0; i < TX_RING_SIZE; i++)
1802 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001803 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804 }
1805 /* Set receiver mode: presumably accept b-case and phys addr only. */
1806 set_rx_mode(dev);
1807 /* enable 802.1q tagged frames */
1808 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001809 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810
John W. Linville62afe592005-11-07 00:58:02 -08001811 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1812 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001813 /* Allow status bits to be seen. */
1814 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1815 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1816 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1817 (vp->bus_master ? DMADone : 0);
1818 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1819 (vp->full_bus_master_rx ? 0 : RxComplete) |
1820 StatsFull | HostError | TxComplete | IntReq
1821 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001822 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001824 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001826 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001828 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829 netif_start_queue (dev);
1830}
1831
1832static int
1833vortex_open(struct net_device *dev)
1834{
1835 struct vortex_private *vp = netdev_priv(dev);
1836 int i;
1837 int retval;
1838
1839 /* Use the now-standard shared IRQ implementation. */
1840 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
1841 &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev))) {
1842 printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
1843 goto out;
1844 }
1845
1846 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1847 if (vortex_debug > 2)
1848 printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
1849 for (i = 0; i < RX_RING_SIZE; i++) {
1850 struct sk_buff *skb;
1851 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1852 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1853 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
1854 skb = dev_alloc_skb(PKT_BUF_SZ);
1855 vp->rx_skbuff[i] = skb;
1856 if (skb == NULL)
1857 break; /* Bad news! */
1858 skb->dev = dev; /* Mark as being used by this device. */
1859 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001860 vp->rx_ring[i].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861 }
1862 if (i != RX_RING_SIZE) {
1863 int j;
1864 printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
1865 for (j = 0; j < i; j++) {
1866 if (vp->rx_skbuff[j]) {
1867 dev_kfree_skb(vp->rx_skbuff[j]);
1868 vp->rx_skbuff[j] = NULL;
1869 }
1870 }
1871 retval = -ENOMEM;
1872 goto out_free_irq;
1873 }
1874 /* Wrap the ring. */
1875 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1876 }
1877
1878 vortex_up(dev);
1879 return 0;
1880
1881out_free_irq:
1882 free_irq(dev->irq, dev);
1883out:
1884 if (vortex_debug > 1)
1885 printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval);
1886 return retval;
1887}
1888
1889static void
1890vortex_timer(unsigned long data)
1891{
1892 struct net_device *dev = (struct net_device *)data;
1893 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001894 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895 int next_tick = 60*HZ;
1896 int ok = 0;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001897 int media_status, old_window;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001898
1899 if (vortex_debug > 2) {
1900 printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
1901 dev->name, media_tbl[dev->if_port].name);
1902 printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
1903 }
1904
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905 disable_irq(dev->irq);
John W. Linville62afe592005-11-07 00:58:02 -08001906 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001908 media_status = ioread16(ioaddr + Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909 switch (dev->if_port) {
1910 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1911 if (media_status & Media_LnkBeat) {
1912 netif_carrier_on(dev);
1913 ok = 1;
1914 if (vortex_debug > 1)
1915 printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
1916 dev->name, media_tbl[dev->if_port].name, media_status);
1917 } else {
1918 netif_carrier_off(dev);
1919 if (vortex_debug > 1) {
1920 printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n",
1921 dev->name, media_tbl[dev->if_port].name, media_status);
1922 }
1923 }
1924 break;
1925 case XCVR_MII: case XCVR_NWAY:
1926 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001927 ok = 1;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001928 spin_lock_bh(&vp->lock);
1929 vortex_check_media(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930 spin_unlock_bh(&vp->lock);
1931 }
1932 break;
1933 default: /* Other media types handled by Tx timeouts. */
1934 if (vortex_debug > 1)
1935 printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n",
1936 dev->name, media_tbl[dev->if_port].name, media_status);
1937 ok = 1;
1938 }
Steffen Klassertb4ff6452006-03-26 01:37:40 -08001939
1940 if (!netif_carrier_ok(dev))
1941 next_tick = 5*HZ;
1942
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001943 if (vp->medialock)
1944 goto leave_media_alone;
1945
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001946 if (!ok) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001947 unsigned int config;
1948
1949 do {
1950 dev->if_port = media_tbl[dev->if_port].next;
1951 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1952 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1953 dev->if_port = vp->default_media;
1954 if (vortex_debug > 1)
1955 printk(KERN_DEBUG "%s: Media selection failing, using default "
1956 "%s port.\n",
1957 dev->name, media_tbl[dev->if_port].name);
1958 } else {
1959 if (vortex_debug > 1)
1960 printk(KERN_DEBUG "%s: Media selection failed, now trying "
1961 "%s port.\n",
1962 dev->name, media_tbl[dev->if_port].name);
1963 next_tick = media_tbl[dev->if_port].wait;
1964 }
John W. Linville62afe592005-11-07 00:58:02 -08001965 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001966 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1967
1968 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001969 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970 config = BFINS(config, dev->if_port, 20, 4);
John W. Linville62afe592005-11-07 00:58:02 -08001971 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972
John W. Linville62afe592005-11-07 00:58:02 -08001973 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001974 ioaddr + EL3_CMD);
1975 if (vortex_debug > 1)
1976 printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config);
1977 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1978 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001979
1980leave_media_alone:
1981 if (vortex_debug > 2)
1982 printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n",
1983 dev->name, media_tbl[dev->if_port].name);
1984
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001985 EL3WINDOW(old_window);
1986 enable_irq(dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987 mod_timer(&vp->timer, RUN_AT(next_tick));
1988 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001989 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001990 return;
1991}
1992
1993static void vortex_tx_timeout(struct net_device *dev)
1994{
1995 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001996 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001997
1998 printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001999 dev->name, ioread8(ioaddr + TxStatus),
2000 ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001 EL3WINDOW(4);
2002 printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n",
John W. Linville62afe592005-11-07 00:58:02 -08002003 ioread16(ioaddr + Wn4_NetDiag),
2004 ioread16(ioaddr + Wn4_Media),
2005 ioread32(ioaddr + PktStatus),
2006 ioread16(ioaddr + Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002007 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08002008 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
2010 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002011 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002012 printk(KERN_ERR "%s: Interrupt posted but not delivered --"
2013 " IRQ blocked by another device?\n", dev->name);
2014 /* Bad idea here.. but we might as well handle a few events. */
2015 {
2016 /*
2017 * Block interrupts because vortex_interrupt does a bare spin_lock()
2018 */
2019 unsigned long flags;
2020 local_irq_save(flags);
2021 if (vp->full_bus_master_tx)
2022 boomerang_interrupt(dev->irq, dev, NULL);
2023 else
2024 vortex_interrupt(dev->irq, dev, NULL);
2025 local_irq_restore(flags);
2026 }
2027 }
2028
2029 if (vortex_debug > 0)
2030 dump_tx_ring(dev);
2031
2032 issue_and_wait(dev, TxReset);
2033
2034 vp->stats.tx_errors++;
2035 if (vp->full_bus_master_tx) {
2036 printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002037 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
2038 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039 ioaddr + DownListPtr);
2040 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
2041 netif_wake_queue (dev);
2042 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08002043 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
2044 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045 } else {
2046 vp->stats.tx_dropped++;
2047 netif_wake_queue(dev);
2048 }
2049
2050 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08002051 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052 dev->trans_start = jiffies;
2053
2054 /* Switch to register set 7 for normal use. */
2055 EL3WINDOW(7);
2056}
2057
2058/*
2059 * Handle uncommon interrupt sources. This is a separate routine to minimize
2060 * the cache impact.
2061 */
2062static void
2063vortex_error(struct net_device *dev, int status)
2064{
2065 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002066 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067 int do_tx_reset = 0, reset_mask = 0;
2068 unsigned char tx_status = 0;
2069
2070 if (vortex_debug > 2) {
2071 printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status);
2072 }
2073
2074 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08002075 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076 /* Presumably a tx-timeout. We must merely re-enable. */
2077 if (vortex_debug > 2
2078 || (tx_status != 0x88 && vortex_debug > 0)) {
2079 printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n",
2080 dev->name, tx_status);
2081 if (tx_status == 0x82) {
2082 printk(KERN_ERR "Probably a duplex mismatch. See "
2083 "Documentation/networking/vortex.txt\n");
2084 }
2085 dump_tx_ring(dev);
2086 }
2087 if (tx_status & 0x14) vp->stats.tx_fifo_errors++;
2088 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
Andrew Morton00007542006-03-31 02:30:47 -08002089 if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
John W. Linville62afe592005-11-07 00:58:02 -08002090 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091 if (tx_status & 0x30) { /* txJabber or txUnderrun */
2092 do_tx_reset = 1;
Andrew Morton00007542006-03-31 02:30:47 -08002093 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
2094 do_tx_reset = 1;
2095 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
2096 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002097 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098 }
2099 }
2100
2101 if (status & RxEarly) { /* Rx early is unused. */
2102 vortex_rx(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002103 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104 }
2105 if (status & StatsFull) { /* Empty statistics. */
2106 static int DoneDidThat;
2107 if (vortex_debug > 4)
2108 printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
2109 update_stats(ioaddr, dev);
2110 /* HACK: Disable statistics as an interrupt source. */
2111 /* This occurs when we have the wrong media type! */
2112 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08002113 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114 printk(KERN_WARNING "%s: Updating statistics failed, disabling "
2115 "stats as an interrupt source.\n", dev->name);
2116 EL3WINDOW(5);
John W. Linville62afe592005-11-07 00:58:02 -08002117 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118 vp->intr_enable &= ~StatsFull;
2119 EL3WINDOW(7);
2120 DoneDidThat++;
2121 }
2122 }
2123 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08002124 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
2125 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126 }
2127 if (status & HostError) {
2128 u16 fifo_diag;
2129 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002130 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
2132 dev->name, fifo_diag);
2133 /* Adapter failure requires Tx/Rx reset and reinit. */
2134 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08002135 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136 /* 0x80000000 PCI master abort. */
2137 /* 0x40000000 PCI target abort. */
2138 if (vortex_debug)
2139 printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
2140
2141 /* In this case, blow the card away */
2142 /* Must not enter D3 or we can't legally issue the reset! */
2143 vortex_down(dev, 0);
2144 issue_and_wait(dev, TotalReset | 0xff);
2145 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
2146 } else if (fifo_diag & 0x0400)
2147 do_tx_reset = 1;
2148 if (fifo_diag & 0x3000) {
2149 /* Reset Rx fifo and upload logic */
2150 issue_and_wait(dev, RxReset|0x07);
2151 /* Set the Rx filter to the current state. */
2152 set_rx_mode(dev);
2153 /* enable 802.1q VLAN tagged frames */
2154 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08002155 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2156 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 }
2158 }
2159
2160 if (do_tx_reset) {
2161 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08002162 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163 if (!vp->full_bus_master_tx)
2164 netif_wake_queue(dev);
2165 }
2166}
2167
2168static int
2169vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2170{
2171 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002172 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173
2174 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002175 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176 if (vp->bus_master) {
2177 /* Set the bus-master controller to transfer the packet. */
2178 int len = (skb->len + 3) & ~3;
Steffen Klasserta880c4c2006-03-26 01:37:43 -08002179 iowrite32(vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180 ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002181 iowrite16(len, ioaddr + Wn7_MasterLen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002183 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184 /* netif_wake_queue() will be called at the DMADone interrupt. */
2185 } else {
2186 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002187 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002189 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190 netif_start_queue (dev); /* AKPM: redundant? */
2191 } else {
2192 /* Interrupt us when the FIFO has room for max-sized packet. */
2193 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002194 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195 }
2196 }
2197
2198 dev->trans_start = jiffies;
2199
2200 /* Clear the Tx status stack. */
2201 {
2202 int tx_status;
2203 int i = 32;
2204
John W. Linville62afe592005-11-07 00:58:02 -08002205 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2207 if (vortex_debug > 2)
2208 printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
2209 dev->name, tx_status);
2210 if (tx_status & 0x04) vp->stats.tx_fifo_errors++;
2211 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
2212 if (tx_status & 0x30) {
2213 issue_and_wait(dev, TxReset);
2214 }
John W. Linville62afe592005-11-07 00:58:02 -08002215 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216 }
John W. Linville62afe592005-11-07 00:58:02 -08002217 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218 }
2219 }
2220 return 0;
2221}
2222
2223static int
2224boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2225{
2226 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002227 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228 /* Calculate the next Tx descriptor entry. */
2229 int entry = vp->cur_tx % TX_RING_SIZE;
2230 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2231 unsigned long flags;
2232
2233 if (vortex_debug > 6) {
2234 printk(KERN_DEBUG "boomerang_start_xmit()\n");
John W. Linville0f667ff2005-06-21 17:15:14 -07002235 printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
2236 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 }
2238
2239 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2240 if (vortex_debug > 0)
2241 printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n",
2242 dev->name);
2243 netif_stop_queue(dev);
2244 return 1;
2245 }
2246
2247 vp->tx_skbuff[entry] = skb;
2248
2249 vp->tx_ring[entry].next = 0;
2250#if DO_ZEROCOPY
2251 if (skb->ip_summed != CHECKSUM_HW)
2252 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2253 else
2254 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2255
2256 if (!skb_shinfo(skb)->nr_frags) {
2257 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2258 skb->len, PCI_DMA_TODEVICE));
2259 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2260 } else {
2261 int i;
2262
2263 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2264 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2265 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2266
2267 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2268 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2269
2270 vp->tx_ring[entry].frag[i+1].addr =
2271 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2272 (void*)page_address(frag->page) + frag->page_offset,
2273 frag->size, PCI_DMA_TODEVICE));
2274
2275 if (i == skb_shinfo(skb)->nr_frags-1)
2276 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2277 else
2278 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2279 }
2280 }
2281#else
2282 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2283 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2284 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2285#endif
2286
2287 spin_lock_irqsave(&vp->lock, flags);
2288 /* Wait for the stall to complete. */
2289 issue_and_wait(dev, DownStall);
2290 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002291 if (ioread32(ioaddr + DownListPtr) == 0) {
2292 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002293 vp->queued_packet++;
2294 }
2295
2296 vp->cur_tx++;
2297 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2298 netif_stop_queue (dev);
2299 } else { /* Clear previous interrupt enable. */
2300#if defined(tx_interrupt_mitigation)
2301 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2302 * were selected, this would corrupt DN_COMPLETE. No?
2303 */
2304 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2305#endif
2306 }
John W. Linville62afe592005-11-07 00:58:02 -08002307 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308 spin_unlock_irqrestore(&vp->lock, flags);
2309 dev->trans_start = jiffies;
2310 return 0;
2311}
2312
2313/* The interrupt handler does all of the Rx thread work and cleans up
2314 after the Tx thread. */
2315
2316/*
2317 * This is the ISR for the vortex series chips.
2318 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2319 */
2320
2321static irqreturn_t
2322vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2323{
2324 struct net_device *dev = dev_id;
2325 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002326 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327 int status;
2328 int work_done = max_interrupt_work;
2329 int handled = 0;
2330
John W. Linville62afe592005-11-07 00:58:02 -08002331 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332 spin_lock(&vp->lock);
2333
John W. Linville62afe592005-11-07 00:58:02 -08002334 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335
2336 if (vortex_debug > 6)
2337 printk("vortex_interrupt(). status=0x%4x\n", status);
2338
2339 if ((status & IntLatch) == 0)
2340 goto handler_exit; /* No interrupt: shared IRQs cause this */
2341 handled = 1;
2342
2343 if (status & IntReq) {
2344 status |= vp->deferred;
2345 vp->deferred = 0;
2346 }
2347
2348 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2349 goto handler_exit;
2350
2351 if (vortex_debug > 4)
2352 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002353 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002354
2355 do {
2356 if (vortex_debug > 5)
2357 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2358 dev->name, status);
2359 if (status & RxComplete)
2360 vortex_rx(dev);
2361
2362 if (status & TxAvailable) {
2363 if (vortex_debug > 5)
2364 printk(KERN_DEBUG " TX room bit was handled.\n");
2365 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002366 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367 netif_wake_queue (dev);
2368 }
2369
2370 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002371 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2372 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2374 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002375 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002376 /*
2377 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2378 * insufficient FIFO room, the TxAvailable test will succeed and call
2379 * netif_wake_queue()
2380 */
2381 netif_wake_queue(dev);
2382 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002383 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002384 netif_stop_queue(dev);
2385 }
2386 }
2387 }
2388 /* Check for all uncommon interrupts at once. */
2389 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2390 if (status == 0xffff)
2391 break;
2392 vortex_error(dev, status);
2393 }
2394
2395 if (--work_done < 0) {
2396 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2397 "%4.4x.\n", dev->name, status);
2398 /* Disable all pending interrupts. */
2399 do {
2400 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002401 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002402 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002403 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2404 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405 /* The timer will reenable interrupts. */
2406 mod_timer(&vp->timer, jiffies + 1*HZ);
2407 break;
2408 }
2409 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002410 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2411 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002412
2413 if (vortex_debug > 4)
2414 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2415 dev->name, status);
2416handler_exit:
2417 spin_unlock(&vp->lock);
2418 return IRQ_RETVAL(handled);
2419}
2420
2421/*
2422 * This is the ISR for the boomerang series chips.
2423 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2424 */
2425
2426static irqreturn_t
2427boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2428{
2429 struct net_device *dev = dev_id;
2430 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002431 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432 int status;
2433 int work_done = max_interrupt_work;
2434
John W. Linville62afe592005-11-07 00:58:02 -08002435 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002436
2437 /*
2438 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2439 * and boomerang_start_xmit
2440 */
2441 spin_lock(&vp->lock);
2442
John W. Linville62afe592005-11-07 00:58:02 -08002443 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002444
2445 if (vortex_debug > 6)
2446 printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status);
2447
2448 if ((status & IntLatch) == 0)
2449 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2450
2451 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2452 if (vortex_debug > 1)
2453 printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n");
2454 goto handler_exit;
2455 }
2456
2457 if (status & IntReq) {
2458 status |= vp->deferred;
2459 vp->deferred = 0;
2460 }
2461
2462 if (vortex_debug > 4)
2463 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002464 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465 do {
2466 if (vortex_debug > 5)
2467 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2468 dev->name, status);
2469 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002470 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002471 if (vortex_debug > 5)
2472 printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n");
2473 boomerang_rx(dev);
2474 }
2475
2476 if (status & DownComplete) {
2477 unsigned int dirty_tx = vp->dirty_tx;
2478
John W. Linville62afe592005-11-07 00:58:02 -08002479 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002480 while (vp->cur_tx - dirty_tx > 0) {
2481 int entry = dirty_tx % TX_RING_SIZE;
2482#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002483 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002484 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2485 break; /* It still hasn't been processed. */
2486#else
2487 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2488 break; /* It still hasn't been processed. */
2489#endif
2490
2491 if (vp->tx_skbuff[entry]) {
2492 struct sk_buff *skb = vp->tx_skbuff[entry];
2493#if DO_ZEROCOPY
2494 int i;
2495 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2496 pci_unmap_single(VORTEX_PCI(vp),
2497 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2498 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2499 PCI_DMA_TODEVICE);
2500#else
2501 pci_unmap_single(VORTEX_PCI(vp),
2502 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2503#endif
2504 dev_kfree_skb_irq(skb);
2505 vp->tx_skbuff[entry] = NULL;
2506 } else {
2507 printk(KERN_DEBUG "boomerang_interrupt: no skb!\n");
2508 }
2509 /* vp->stats.tx_packets++; Counted below. */
2510 dirty_tx++;
2511 }
2512 vp->dirty_tx = dirty_tx;
2513 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2514 if (vortex_debug > 6)
2515 printk(KERN_DEBUG "boomerang_interrupt: wake queue\n");
2516 netif_wake_queue (dev);
2517 }
2518 }
2519
2520 /* Check for all uncommon interrupts at once. */
2521 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2522 vortex_error(dev, status);
2523
2524 if (--work_done < 0) {
2525 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2526 "%4.4x.\n", dev->name, status);
2527 /* Disable all pending interrupts. */
2528 do {
2529 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002530 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002532 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2533 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002534 /* The timer will reenable interrupts. */
2535 mod_timer(&vp->timer, jiffies + 1*HZ);
2536 break;
2537 }
2538 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002539 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002540 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002541 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542
John W. Linville62afe592005-11-07 00:58:02 -08002543 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002544
2545 if (vortex_debug > 4)
2546 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2547 dev->name, status);
2548handler_exit:
2549 spin_unlock(&vp->lock);
2550 return IRQ_HANDLED;
2551}
2552
2553static int vortex_rx(struct net_device *dev)
2554{
2555 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002556 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002557 int i;
2558 short rx_status;
2559
2560 if (vortex_debug > 5)
2561 printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002562 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2563 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002564 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002565 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002566 if (vortex_debug > 2)
2567 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2568 vp->stats.rx_errors++;
2569 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2570 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2571 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2572 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2573 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2574 } else {
2575 /* The packet length: up to 4.5K!. */
2576 int pkt_len = rx_status & 0x1fff;
2577 struct sk_buff *skb;
2578
2579 skb = dev_alloc_skb(pkt_len + 5);
2580 if (vortex_debug > 4)
2581 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2582 pkt_len, rx_status);
2583 if (skb != NULL) {
2584 skb->dev = dev;
2585 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2586 /* 'skb_put()' points to the start of sk_buff data area. */
2587 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002588 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002589 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2590 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002591 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2592 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2593 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2594 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002595 ;
2596 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2597 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002598 ioread32_rep(ioaddr + RX_FIFO,
2599 skb_put(skb, pkt_len),
2600 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002601 }
John W. Linville62afe592005-11-07 00:58:02 -08002602 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002603 skb->protocol = eth_type_trans(skb, dev);
2604 netif_rx(skb);
2605 dev->last_rx = jiffies;
2606 vp->stats.rx_packets++;
2607 /* Wait a limited time to go to next packet. */
2608 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002609 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002610 break;
2611 continue;
2612 } else if (vortex_debug > 0)
2613 printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
2614 "size %d.\n", dev->name, pkt_len);
John W. Linville35b30672005-11-07 00:58:08 -08002615 vp->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002616 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002617 issue_and_wait(dev, RxDiscard);
2618 }
2619
2620 return 0;
2621}
2622
2623static int
2624boomerang_rx(struct net_device *dev)
2625{
2626 struct vortex_private *vp = netdev_priv(dev);
2627 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002628 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629 int rx_status;
2630 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2631
2632 if (vortex_debug > 5)
John W. Linville62afe592005-11-07 00:58:02 -08002633 printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634
2635 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2636 if (--rx_work_limit < 0)
2637 break;
2638 if (rx_status & RxDError) { /* Error, update stats. */
2639 unsigned char rx_error = rx_status >> 16;
2640 if (vortex_debug > 2)
2641 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2642 vp->stats.rx_errors++;
2643 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2644 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2645 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2646 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2647 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2648 } else {
2649 /* The packet length: up to 4.5K!. */
2650 int pkt_len = rx_status & 0x1fff;
2651 struct sk_buff *skb;
2652 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2653
2654 if (vortex_debug > 4)
2655 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2656 pkt_len, rx_status);
2657
2658 /* Check if the packet is long enough to just accept without
2659 copying to a properly sized skbuff. */
2660 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
2661 skb->dev = dev;
2662 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2663 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2664 /* 'skb_put()' points to the start of sk_buff data area. */
2665 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002666 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667 pkt_len);
2668 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2669 vp->rx_copy++;
2670 } else {
2671 /* Pass up the skbuff already on the Rx ring. */
2672 skb = vp->rx_skbuff[entry];
2673 vp->rx_skbuff[entry] = NULL;
2674 skb_put(skb, pkt_len);
2675 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2676 vp->rx_nocopy++;
2677 }
2678 skb->protocol = eth_type_trans(skb, dev);
2679 { /* Use hardware checksum info. */
2680 int csum_bits = rx_status & 0xee000000;
2681 if (csum_bits &&
2682 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2683 csum_bits == (IPChksumValid | UDPChksumValid))) {
2684 skb->ip_summed = CHECKSUM_UNNECESSARY;
2685 vp->rx_csumhits++;
2686 }
2687 }
2688 netif_rx(skb);
2689 dev->last_rx = jiffies;
2690 vp->stats.rx_packets++;
2691 }
2692 entry = (++vp->cur_rx) % RX_RING_SIZE;
2693 }
2694 /* Refill the Rx ring buffers. */
2695 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2696 struct sk_buff *skb;
2697 entry = vp->dirty_rx % RX_RING_SIZE;
2698 if (vp->rx_skbuff[entry] == NULL) {
2699 skb = dev_alloc_skb(PKT_BUF_SZ);
2700 if (skb == NULL) {
2701 static unsigned long last_jif;
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -08002702 if (time_after(jiffies, last_jif + 10 * HZ)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002703 printk(KERN_WARNING "%s: memory shortage\n", dev->name);
2704 last_jif = jiffies;
2705 }
2706 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2707 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2708 break; /* Bad news! */
2709 }
2710 skb->dev = dev; /* Mark as being used by this device. */
2711 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07002712 vp->rx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002713 vp->rx_skbuff[entry] = skb;
2714 }
2715 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002716 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002717 }
2718 return 0;
2719}
2720
2721/*
2722 * If we've hit a total OOM refilling the Rx ring we poll once a second
2723 * for some memory. Otherwise there is no way to restart the rx process.
2724 */
2725static void
2726rx_oom_timer(unsigned long arg)
2727{
2728 struct net_device *dev = (struct net_device *)arg;
2729 struct vortex_private *vp = netdev_priv(dev);
2730
2731 spin_lock_irq(&vp->lock);
2732 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2733 boomerang_rx(dev);
2734 if (vortex_debug > 1) {
2735 printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name,
2736 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2737 }
2738 spin_unlock_irq(&vp->lock);
2739}
2740
2741static void
2742vortex_down(struct net_device *dev, int final_down)
2743{
2744 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002745 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002746
2747 netif_stop_queue (dev);
2748
2749 del_timer_sync(&vp->rx_oom_timer);
2750 del_timer_sync(&vp->timer);
2751
2752 /* Turn off statistics ASAP. We update vp->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002753 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002754
2755 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002756 iowrite16(RxDisable, ioaddr + EL3_CMD);
2757 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002758
2759 /* Disable receiving 802.1q tagged frames */
2760 set_8021q_mode(dev, 0);
2761
2762 if (dev->if_port == XCVR_10base2)
2763 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002764 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002765
John W. Linville62afe592005-11-07 00:58:02 -08002766 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767
2768 update_stats(ioaddr, dev);
2769 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002770 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002771 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002772 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002773
2774 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002775 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002776 pci_save_state(VORTEX_PCI(vp));
2777 acpi_set_WOL(dev);
2778 }
2779}
2780
2781static int
2782vortex_close(struct net_device *dev)
2783{
2784 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002785 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002786 int i;
2787
2788 if (netif_device_present(dev))
2789 vortex_down(dev, 1);
2790
2791 if (vortex_debug > 1) {
2792 printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002793 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002794 printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
2795 " tx_queued %d Rx pre-checksummed %d.\n",
2796 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2797 }
2798
2799#if DO_ZEROCOPY
John W. Linville32fb5f02005-11-07 00:58:05 -08002800 if (vp->rx_csumhits &&
2801 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2802 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
2803 printk(KERN_WARNING "%s supports hardware checksums, and we're "
2804 "not using them!\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002805 }
2806#endif
2807
2808 free_irq(dev->irq, dev);
2809
2810 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2811 for (i = 0; i < RX_RING_SIZE; i++)
2812 if (vp->rx_skbuff[i]) {
2813 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2814 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2815 dev_kfree_skb(vp->rx_skbuff[i]);
2816 vp->rx_skbuff[i] = NULL;
2817 }
2818 }
2819 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2820 for (i = 0; i < TX_RING_SIZE; i++) {
2821 if (vp->tx_skbuff[i]) {
2822 struct sk_buff *skb = vp->tx_skbuff[i];
2823#if DO_ZEROCOPY
2824 int k;
2825
2826 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2827 pci_unmap_single(VORTEX_PCI(vp),
2828 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2829 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2830 PCI_DMA_TODEVICE);
2831#else
2832 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2833#endif
2834 dev_kfree_skb(skb);
2835 vp->tx_skbuff[i] = NULL;
2836 }
2837 }
2838 }
2839
2840 return 0;
2841}
2842
2843static void
2844dump_tx_ring(struct net_device *dev)
2845{
2846 if (vortex_debug > 0) {
2847 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002848 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002849
2850 if (vp->full_bus_master_tx) {
2851 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002852 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002853
2854 printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
2855 vp->full_bus_master_tx,
2856 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2857 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
2858 printk(KERN_ERR " Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002859 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002860 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2861 issue_and_wait(dev, DownStall);
2862 for (i = 0; i < TX_RING_SIZE; i++) {
2863 printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i,
2864 &vp->tx_ring[i],
2865#if DO_ZEROCOPY
2866 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2867#else
2868 le32_to_cpu(vp->tx_ring[i].length),
2869#endif
2870 le32_to_cpu(vp->tx_ring[i].status));
2871 }
2872 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002873 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002874 }
2875 }
2876}
2877
2878static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2879{
2880 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002881 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002882 unsigned long flags;
2883
2884 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2885 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002886 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002887 spin_unlock_irqrestore (&vp->lock, flags);
2888 }
2889 return &vp->stats;
2890}
2891
2892/* Update statistics.
2893 Unlike with the EL3 we need not worry about interrupts changing
2894 the window setting from underneath us, but we must still guard
2895 against a race condition with a StatsUpdate interrupt updating the
2896 table. This is done by checking that the ASM (!) code generated uses
2897 atomic updates with '+='.
2898 */
John W. Linville62afe592005-11-07 00:58:02 -08002899static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002900{
2901 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002902 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002903
2904 if (old_window == 0xffff) /* Chip suspended or ejected. */
2905 return;
2906 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2907 /* Switch to the stats window, and read everything. */
2908 EL3WINDOW(6);
John W. Linville62afe592005-11-07 00:58:02 -08002909 vp->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2910 vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
John W. Linville62afe592005-11-07 00:58:02 -08002911 vp->stats.tx_window_errors += ioread8(ioaddr + 4);
2912 vp->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2913 vp->stats.tx_packets += ioread8(ioaddr + 6);
2914 vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
2915 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002916 /* Don't bother with register 9, an extension of registers 6&7.
2917 If we do use the 6&7 values the atomic update assumption above
2918 is invalid. */
John W. Linville62afe592005-11-07 00:58:02 -08002919 vp->stats.rx_bytes += ioread16(ioaddr + 10);
2920 vp->stats.tx_bytes += ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002921 /* Extra stats for get_ethtool_stats() */
John W. Linville62afe592005-11-07 00:58:02 -08002922 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002923 vp->xstats.tx_single_collisions += ioread8(ioaddr + 3);
John W. Linville62afe592005-11-07 00:58:02 -08002924 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002925 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002926 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002927
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002928 vp->stats.collisions = vp->xstats.tx_multiple_collisions
2929 + vp->xstats.tx_single_collisions
2930 + vp->xstats.tx_max_collisions;
2931
Linus Torvalds1da177e2005-04-16 15:20:36 -07002932 {
John W. Linville62afe592005-11-07 00:58:02 -08002933 u8 up = ioread8(ioaddr + 13);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002934 vp->stats.rx_bytes += (up & 0x0f) << 16;
2935 vp->stats.tx_bytes += (up & 0xf0) << 12;
2936 }
2937
2938 EL3WINDOW(old_window >> 13);
2939 return;
2940}
2941
2942static int vortex_nway_reset(struct net_device *dev)
2943{
2944 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002945 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002946 unsigned long flags;
2947 int rc;
2948
2949 spin_lock_irqsave(&vp->lock, flags);
2950 EL3WINDOW(4);
2951 rc = mii_nway_restart(&vp->mii);
2952 spin_unlock_irqrestore(&vp->lock, flags);
2953 return rc;
2954}
2955
Linus Torvalds1da177e2005-04-16 15:20:36 -07002956static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2957{
2958 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002959 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002960 unsigned long flags;
2961 int rc;
2962
2963 spin_lock_irqsave(&vp->lock, flags);
2964 EL3WINDOW(4);
2965 rc = mii_ethtool_gset(&vp->mii, cmd);
2966 spin_unlock_irqrestore(&vp->lock, flags);
2967 return rc;
2968}
2969
2970static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2971{
2972 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002973 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002974 unsigned long flags;
2975 int rc;
2976
2977 spin_lock_irqsave(&vp->lock, flags);
2978 EL3WINDOW(4);
2979 rc = mii_ethtool_sset(&vp->mii, cmd);
2980 spin_unlock_irqrestore(&vp->lock, flags);
2981 return rc;
2982}
2983
2984static u32 vortex_get_msglevel(struct net_device *dev)
2985{
2986 return vortex_debug;
2987}
2988
2989static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2990{
2991 vortex_debug = dbg;
2992}
2993
2994static int vortex_get_stats_count(struct net_device *dev)
2995{
2996 return VORTEX_NUM_STATS;
2997}
2998
2999static void vortex_get_ethtool_stats(struct net_device *dev,
3000 struct ethtool_stats *stats, u64 *data)
3001{
3002 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003003 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003004 unsigned long flags;
3005
3006 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08003007 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008 spin_unlock_irqrestore(&vp->lock, flags);
3009
3010 data[0] = vp->xstats.tx_deferred;
Steffen Klassert8d1d0342006-02-03 03:03:57 -08003011 data[1] = vp->xstats.tx_max_collisions;
3012 data[2] = vp->xstats.tx_multiple_collisions;
3013 data[3] = vp->xstats.tx_single_collisions;
3014 data[4] = vp->xstats.rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003015}
3016
3017
3018static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
3019{
3020 switch (stringset) {
3021 case ETH_SS_STATS:
3022 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
3023 break;
3024 default:
3025 WARN_ON(1);
3026 break;
3027 }
3028}
3029
3030static void vortex_get_drvinfo(struct net_device *dev,
3031 struct ethtool_drvinfo *info)
3032{
3033 struct vortex_private *vp = netdev_priv(dev);
3034
3035 strcpy(info->driver, DRV_NAME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003036 if (VORTEX_PCI(vp)) {
3037 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
3038 } else {
3039 if (VORTEX_EISA(vp))
3040 sprintf(info->bus_info, vp->gendev->bus_id);
3041 else
3042 sprintf(info->bus_info, "EISA 0x%lx %d",
3043 dev->base_addr, dev->irq);
3044 }
3045}
3046
3047static struct ethtool_ops vortex_ethtool_ops = {
3048 .get_drvinfo = vortex_get_drvinfo,
3049 .get_strings = vortex_get_strings,
3050 .get_msglevel = vortex_get_msglevel,
3051 .set_msglevel = vortex_set_msglevel,
3052 .get_ethtool_stats = vortex_get_ethtool_stats,
3053 .get_stats_count = vortex_get_stats_count,
3054 .get_settings = vortex_get_settings,
3055 .set_settings = vortex_set_settings,
Steffen Klassert373a6882006-03-26 01:37:41 -08003056 .get_link = ethtool_op_get_link,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003057 .nway_reset = vortex_nway_reset,
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003058 .get_perm_addr = ethtool_op_get_perm_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003059};
3060
3061#ifdef CONFIG_PCI
3062/*
3063 * Must power the device up to do MDIO operations
3064 */
3065static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3066{
3067 int err;
3068 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003069 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003070 unsigned long flags;
3071 int state = 0;
3072
3073 if(VORTEX_PCI(vp))
3074 state = VORTEX_PCI(vp)->current_state;
3075
3076 /* The kernel core really should have pci_get_power_state() */
3077
3078 if(state != 0)
3079 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
3080 spin_lock_irqsave(&vp->lock, flags);
3081 EL3WINDOW(4);
3082 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
3083 spin_unlock_irqrestore(&vp->lock, flags);
3084 if(state != 0)
3085 pci_set_power_state(VORTEX_PCI(vp), state);
3086
3087 return err;
3088}
3089#endif
3090
3091
3092/* Pre-Cyclone chips have no documented multicast filter, so the only
3093 multicast setting is to receive all multicast frames. At least
3094 the chip has a very clean way to set the mode, unlike many others. */
3095static void set_rx_mode(struct net_device *dev)
3096{
John W. Linville62afe592005-11-07 00:58:02 -08003097 struct vortex_private *vp = netdev_priv(dev);
3098 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003099 int new_mode;
3100
3101 if (dev->flags & IFF_PROMISC) {
3102 if (vortex_debug > 0)
3103 printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
3104 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
3105 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
3106 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
3107 } else
3108 new_mode = SetRxFilter | RxStation | RxBroadcast;
3109
John W. Linville62afe592005-11-07 00:58:02 -08003110 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003111}
3112
3113#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
3114/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
3115 Note that this must be done after each RxReset due to some backwards
3116 compatibility logic in the Cyclone and Tornado ASICs */
3117
3118/* The Ethernet Type used for 802.1q tagged frames */
3119#define VLAN_ETHER_TYPE 0x8100
3120
3121static void set_8021q_mode(struct net_device *dev, int enable)
3122{
3123 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003124 void __iomem *ioaddr = vp->ioaddr;
3125 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003126 int mac_ctrl;
3127
3128 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
3129 /* cyclone and tornado chipsets can recognize 802.1q
3130 * tagged frames and treat them correctly */
3131
3132 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
3133 if (enable)
3134 max_pkt_size += 4; /* 802.1Q VLAN tag */
3135
3136 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003137 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003138
3139 /* set VlanEtherType to let the hardware checksumming
3140 treat tagged frames correctly */
3141 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003142 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003143 } else {
3144 /* on older cards we have to enable large frames */
3145
3146 vp->large_frames = dev->mtu > 1500 || enable;
3147
3148 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003149 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003150 if (vp->large_frames)
3151 mac_ctrl |= 0x40;
3152 else
3153 mac_ctrl &= ~0x40;
John W. Linville62afe592005-11-07 00:58:02 -08003154 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003155 }
3156
3157 EL3WINDOW(old_window);
3158}
3159#else
3160
3161static void set_8021q_mode(struct net_device *dev, int enable)
3162{
3163}
3164
3165
3166#endif
3167
3168/* MII transceiver control section.
3169 Read and write the MII registers using software-generated serial
3170 MDIO protocol. See the MII specifications or DP83840A data sheet
3171 for details. */
3172
3173/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3174 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3175 "overclocking" issues. */
John W. Linville62afe592005-11-07 00:58:02 -08003176#define mdio_delay() ioread32(mdio_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003177
3178#define MDIO_SHIFT_CLK 0x01
3179#define MDIO_DIR_WRITE 0x04
3180#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3181#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3182#define MDIO_DATA_READ 0x02
3183#define MDIO_ENB_IN 0x00
3184
3185/* Generate the preamble required for initial synchronization and
3186 a few older transceivers. */
John W. Linville62afe592005-11-07 00:58:02 -08003187static void mdio_sync(void __iomem *ioaddr, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003188{
John W. Linville62afe592005-11-07 00:58:02 -08003189 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003190
3191 /* Establish sync by sending at least 32 logic ones. */
3192 while (-- bits >= 0) {
John W. Linville62afe592005-11-07 00:58:02 -08003193 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003194 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003195 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003196 mdio_delay();
3197 }
3198}
3199
3200static int mdio_read(struct net_device *dev, int phy_id, int location)
3201{
3202 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003203 struct vortex_private *vp = netdev_priv(dev);
3204 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003205 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3206 unsigned int retval = 0;
John W. Linville62afe592005-11-07 00:58:02 -08003207 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003208
3209 if (mii_preamble_required)
3210 mdio_sync(ioaddr, 32);
3211
3212 /* Shift the read command bits out. */
3213 for (i = 14; i >= 0; i--) {
3214 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003215 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003216 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003217 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003218 mdio_delay();
3219 }
3220 /* Read the two transition, 16 data, and wire-idle bits. */
3221 for (i = 19; i > 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003222 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003223 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003224 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3225 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003226 mdio_delay();
3227 }
3228 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3229}
3230
3231static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3232{
John W. Linville62afe592005-11-07 00:58:02 -08003233 struct vortex_private *vp = netdev_priv(dev);
3234 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003235 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
John W. Linville62afe592005-11-07 00:58:02 -08003236 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237 int i;
3238
3239 if (mii_preamble_required)
3240 mdio_sync(ioaddr, 32);
3241
3242 /* Shift the command bits out. */
3243 for (i = 31; i >= 0; i--) {
3244 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003245 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003246 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003247 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003248 mdio_delay();
3249 }
3250 /* Leave the interface idle. */
3251 for (i = 1; i >= 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003252 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003253 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003254 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003255 mdio_delay();
3256 }
3257 return;
3258}
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003259
Linus Torvalds1da177e2005-04-16 15:20:36 -07003260/* ACPI: Advanced Configuration and Power Interface. */
3261/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3262static void acpi_set_WOL(struct net_device *dev)
3263{
3264 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003265 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003266
3267 if (vp->enable_wol) {
3268 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3269 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003270 iowrite16(2, ioaddr + 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003271 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003272 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3273 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003274
3275 pci_enable_wake(VORTEX_PCI(vp), 0, 1);
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003276
3277 /* Change the power state to D3; RxEnable doesn't take effect. */
3278 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003279 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003280}
3281
3282
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003283static void __devexit vortex_remove_one(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003284{
3285 struct net_device *dev = pci_get_drvdata(pdev);
3286 struct vortex_private *vp;
3287
3288 if (!dev) {
3289 printk("vortex_remove_one called for Compaq device!\n");
3290 BUG();
3291 }
3292
3293 vp = netdev_priv(dev);
3294
John W. Linville62afe592005-11-07 00:58:02 -08003295 if (vp->cb_fn_base)
3296 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3297
Linus Torvalds1da177e2005-04-16 15:20:36 -07003298 unregister_netdev(dev);
3299
3300 if (VORTEX_PCI(vp)) {
3301 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3302 if (vp->pm_state_valid)
3303 pci_restore_state(VORTEX_PCI(vp));
3304 pci_disable_device(VORTEX_PCI(vp));
3305 }
3306 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003307 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3308 vp->ioaddr + EL3_CMD);
3309
3310 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003311
3312 pci_free_consistent(pdev,
3313 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3314 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3315 vp->rx_ring,
3316 vp->rx_ring_dma);
3317 if (vp->must_free_region)
3318 release_region(dev->base_addr, vp->io_size);
3319 free_netdev(dev);
3320}
3321
3322
3323static struct pci_driver vortex_driver = {
3324 .name = "3c59x",
3325 .probe = vortex_init_one,
3326 .remove = __devexit_p(vortex_remove_one),
3327 .id_table = vortex_pci_tbl,
3328#ifdef CONFIG_PM
3329 .suspend = vortex_suspend,
3330 .resume = vortex_resume,
3331#endif
3332};
3333
3334
3335static int vortex_have_pci;
3336static int vortex_have_eisa;
3337
3338
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003339static int __init vortex_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003340{
3341 int pci_rc, eisa_rc;
3342
3343 pci_rc = pci_module_init(&vortex_driver);
3344 eisa_rc = vortex_eisa_init();
3345
3346 if (pci_rc == 0)
3347 vortex_have_pci = 1;
3348 if (eisa_rc > 0)
3349 vortex_have_eisa = 1;
3350
3351 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3352}
3353
3354
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003355static void __exit vortex_eisa_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003356{
3357 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003358 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003359
3360#ifdef CONFIG_EISA
3361 /* Take care of the EISA devices */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003362 eisa_driver_unregister(&vortex_eisa_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003363#endif
3364
3365 if (compaq_net_device) {
3366 vp = compaq_net_device->priv;
John W. Linville62afe592005-11-07 00:58:02 -08003367 ioaddr = ioport_map(compaq_net_device->base_addr,
3368 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003369
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003370 unregister_netdev(compaq_net_device);
3371 iowrite16(TotalReset, ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08003372 release_region(compaq_net_device->base_addr,
3373 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003374
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003375 free_netdev(compaq_net_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003376 }
3377}
3378
3379
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003380static void __exit vortex_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003381{
3382 if (vortex_have_pci)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003383 pci_unregister_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003384 if (vortex_have_eisa)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003385 vortex_eisa_cleanup();
Linus Torvalds1da177e2005-04-16 15:20:36 -07003386}
3387
3388
3389module_init(vortex_init);
3390module_exit(vortex_cleanup);