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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. */
791 full_duplex:1, force_fd:1, autoselect:1,
792 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);
1636
1637 issue_and_wait(dev, TxReset);
1638 /*
1639 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1640 */
1641 issue_and_wait(dev, RxReset|0x04);
1642}
1643
1644static void vortex_check_media(struct net_device *dev, unsigned int init)
1645{
1646 struct vortex_private *vp = netdev_priv(dev);
1647 unsigned int ok_to_print = 0;
1648
1649 if (vortex_debug > 3)
1650 ok_to_print = 1;
1651
1652 if (mii_check_media(&vp->mii, ok_to_print, init)) {
1653 vp->full_duplex = vp->mii.full_duplex;
1654 vortex_set_duplex(dev);
1655 } else if (init) {
1656 vortex_set_duplex(dev);
1657 }
1658}
1659
1660static void
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661vortex_up(struct net_device *dev)
1662{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001664 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001665 unsigned int config;
1666 int i;
1667
1668 if (VORTEX_PCI(vp)) {
1669 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001670 if (vp->pm_state_valid)
1671 pci_restore_state(VORTEX_PCI(vp));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672 pci_enable_device(VORTEX_PCI(vp));
1673 }
1674
1675 /* Before initializing select the active media port. */
1676 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001677 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678
1679 if (vp->media_override != 7) {
1680 printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
1681 dev->name, vp->media_override,
1682 media_tbl[vp->media_override].name);
1683 dev->if_port = vp->media_override;
1684 } else if (vp->autoselect) {
1685 if (vp->has_nway) {
1686 if (vortex_debug > 1)
1687 printk(KERN_INFO "%s: using NWAY device table, not %d\n",
1688 dev->name, dev->if_port);
1689 dev->if_port = XCVR_NWAY;
1690 } else {
1691 /* Find first available media type, starting with 100baseTx. */
1692 dev->if_port = XCVR_100baseTx;
1693 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1694 dev->if_port = media_tbl[dev->if_port].next;
1695 if (vortex_debug > 1)
1696 printk(KERN_INFO "%s: first available media type: %s\n",
1697 dev->name, media_tbl[dev->if_port].name);
1698 }
1699 } else {
1700 dev->if_port = vp->default_media;
1701 if (vortex_debug > 1)
1702 printk(KERN_INFO "%s: using default media %s\n",
1703 dev->name, media_tbl[dev->if_port].name);
1704 }
1705
1706 init_timer(&vp->timer);
1707 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1708 vp->timer.data = (unsigned long)dev;
1709 vp->timer.function = vortex_timer; /* timer handler */
1710 add_timer(&vp->timer);
1711
1712 init_timer(&vp->rx_oom_timer);
1713 vp->rx_oom_timer.data = (unsigned long)dev;
1714 vp->rx_oom_timer.function = rx_oom_timer;
1715
1716 if (vortex_debug > 1)
1717 printk(KERN_DEBUG "%s: Initial media type %s.\n",
1718 dev->name, media_tbl[dev->if_port].name);
1719
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001720 vp->full_duplex = vp->mii.force_media;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 config = BFINS(config, dev->if_port, 20, 4);
1722 if (vortex_debug > 6)
1723 printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
John W. Linville62afe592005-11-07 00:58:02 -08001724 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001726 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728 EL3WINDOW(4);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001729 vortex_check_media(dev, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 }
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001731 else
1732 vortex_set_duplex(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734
John W. Linville62afe592005-11-07 00:58:02 -08001735 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736
1737 if (vortex_debug > 1) {
1738 EL3WINDOW(4);
1739 printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001740 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741 }
1742
1743 /* Set the station address and mask in window 2 each time opened. */
1744 EL3WINDOW(2);
1745 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001746 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747 for (; i < 12; i+=2)
John W. Linville62afe592005-11-07 00:58:02 -08001748 iowrite16(0, ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749
1750 if (vp->cb_fn_base) {
John W. Linville62afe592005-11-07 00:58:02 -08001751 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 if (vp->drv_flags & INVERT_LED_PWR)
1753 n |= 0x10;
1754 if (vp->drv_flags & INVERT_MII_PWR)
1755 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001756 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 }
1758
1759 if (dev->if_port == XCVR_10base2)
1760 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001761 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762 if (dev->if_port != XCVR_NWAY) {
1763 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001764 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1766 }
1767
1768 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001769 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 EL3WINDOW(6);
1771 for (i = 0; i < 10; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001772 ioread8(ioaddr + i);
1773 ioread16(ioaddr + 10);
1774 ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775 /* New: On the Vortex we must also clear the BadSSD counter. */
1776 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001777 ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 /* ..and on the Boomerang we enable the extra statistics bits. */
John W. Linville62afe592005-11-07 00:58:02 -08001779 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780
1781 /* Switch to register set 7 for normal use. */
1782 EL3WINDOW(7);
1783
1784 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1785 vp->cur_rx = vp->dirty_rx = 0;
1786 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001787 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1788 iowrite32(0x0020, ioaddr + PktStatus);
1789 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 }
1791 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1792 vp->cur_tx = vp->dirty_tx = 0;
1793 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001794 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 /* Clear the Rx, Tx rings. */
1796 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1797 vp->rx_ring[i].status = 0;
1798 for (i = 0; i < TX_RING_SIZE; i++)
1799 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001800 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 }
1802 /* Set receiver mode: presumably accept b-case and phys addr only. */
1803 set_rx_mode(dev);
1804 /* enable 802.1q tagged frames */
1805 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001806 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807
John W. Linville62afe592005-11-07 00:58:02 -08001808 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1809 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810 /* Allow status bits to be seen. */
1811 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1812 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1813 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1814 (vp->bus_master ? DMADone : 0);
1815 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1816 (vp->full_bus_master_rx ? 0 : RxComplete) |
1817 StatsFull | HostError | TxComplete | IntReq
1818 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001819 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001821 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001823 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001825 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826 netif_start_queue (dev);
1827}
1828
1829static int
1830vortex_open(struct net_device *dev)
1831{
1832 struct vortex_private *vp = netdev_priv(dev);
1833 int i;
1834 int retval;
1835
1836 /* Use the now-standard shared IRQ implementation. */
1837 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
1838 &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev))) {
1839 printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
1840 goto out;
1841 }
1842
1843 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1844 if (vortex_debug > 2)
1845 printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
1846 for (i = 0; i < RX_RING_SIZE; i++) {
1847 struct sk_buff *skb;
1848 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1849 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1850 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
1851 skb = dev_alloc_skb(PKT_BUF_SZ);
1852 vp->rx_skbuff[i] = skb;
1853 if (skb == NULL)
1854 break; /* Bad news! */
1855 skb->dev = dev; /* Mark as being used by this device. */
1856 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001857 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 -07001858 }
1859 if (i != RX_RING_SIZE) {
1860 int j;
1861 printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
1862 for (j = 0; j < i; j++) {
1863 if (vp->rx_skbuff[j]) {
1864 dev_kfree_skb(vp->rx_skbuff[j]);
1865 vp->rx_skbuff[j] = NULL;
1866 }
1867 }
1868 retval = -ENOMEM;
1869 goto out_free_irq;
1870 }
1871 /* Wrap the ring. */
1872 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1873 }
1874
1875 vortex_up(dev);
1876 return 0;
1877
1878out_free_irq:
1879 free_irq(dev->irq, dev);
1880out:
1881 if (vortex_debug > 1)
1882 printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval);
1883 return retval;
1884}
1885
1886static void
1887vortex_timer(unsigned long data)
1888{
1889 struct net_device *dev = (struct net_device *)data;
1890 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001891 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001892 int next_tick = 60*HZ;
1893 int ok = 0;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001894 int media_status, old_window;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895
1896 if (vortex_debug > 2) {
1897 printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
1898 dev->name, media_tbl[dev->if_port].name);
1899 printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
1900 }
1901
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902 disable_irq(dev->irq);
John W. Linville62afe592005-11-07 00:58:02 -08001903 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001904 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001905 media_status = ioread16(ioaddr + Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906 switch (dev->if_port) {
1907 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1908 if (media_status & Media_LnkBeat) {
1909 netif_carrier_on(dev);
1910 ok = 1;
1911 if (vortex_debug > 1)
1912 printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
1913 dev->name, media_tbl[dev->if_port].name, media_status);
1914 } else {
1915 netif_carrier_off(dev);
1916 if (vortex_debug > 1) {
1917 printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n",
1918 dev->name, media_tbl[dev->if_port].name, media_status);
1919 }
1920 }
1921 break;
1922 case XCVR_MII: case XCVR_NWAY:
1923 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924 ok = 1;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001925 spin_lock_bh(&vp->lock);
1926 vortex_check_media(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001927 spin_unlock_bh(&vp->lock);
1928 }
1929 break;
1930 default: /* Other media types handled by Tx timeouts. */
1931 if (vortex_debug > 1)
1932 printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n",
1933 dev->name, media_tbl[dev->if_port].name, media_status);
1934 ok = 1;
1935 }
Steffen Klassertb4ff6452006-03-26 01:37:40 -08001936
1937 if (!netif_carrier_ok(dev))
1938 next_tick = 5*HZ;
1939
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001940 if (vp->medialock)
1941 goto leave_media_alone;
1942
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001943 if (!ok) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001944 unsigned int config;
1945
1946 do {
1947 dev->if_port = media_tbl[dev->if_port].next;
1948 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1949 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1950 dev->if_port = vp->default_media;
1951 if (vortex_debug > 1)
1952 printk(KERN_DEBUG "%s: Media selection failing, using default "
1953 "%s port.\n",
1954 dev->name, media_tbl[dev->if_port].name);
1955 } else {
1956 if (vortex_debug > 1)
1957 printk(KERN_DEBUG "%s: Media selection failed, now trying "
1958 "%s port.\n",
1959 dev->name, media_tbl[dev->if_port].name);
1960 next_tick = media_tbl[dev->if_port].wait;
1961 }
John W. Linville62afe592005-11-07 00:58:02 -08001962 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1964
1965 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001966 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967 config = BFINS(config, dev->if_port, 20, 4);
John W. Linville62afe592005-11-07 00:58:02 -08001968 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969
John W. Linville62afe592005-11-07 00:58:02 -08001970 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001971 ioaddr + EL3_CMD);
1972 if (vortex_debug > 1)
1973 printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config);
1974 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1975 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976
1977leave_media_alone:
1978 if (vortex_debug > 2)
1979 printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n",
1980 dev->name, media_tbl[dev->if_port].name);
1981
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001982 EL3WINDOW(old_window);
1983 enable_irq(dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984 mod_timer(&vp->timer, RUN_AT(next_tick));
1985 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001986 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987 return;
1988}
1989
1990static void vortex_tx_timeout(struct net_device *dev)
1991{
1992 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001993 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001994
1995 printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001996 dev->name, ioread8(ioaddr + TxStatus),
1997 ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998 EL3WINDOW(4);
1999 printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n",
John W. Linville62afe592005-11-07 00:58:02 -08002000 ioread16(ioaddr + Wn4_NetDiag),
2001 ioread16(ioaddr + Wn4_Media),
2002 ioread32(ioaddr + PktStatus),
2003 ioread16(ioaddr + Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08002005 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002006 printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
2007 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002008 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 printk(KERN_ERR "%s: Interrupt posted but not delivered --"
2010 " IRQ blocked by another device?\n", dev->name);
2011 /* Bad idea here.. but we might as well handle a few events. */
2012 {
2013 /*
2014 * Block interrupts because vortex_interrupt does a bare spin_lock()
2015 */
2016 unsigned long flags;
2017 local_irq_save(flags);
2018 if (vp->full_bus_master_tx)
2019 boomerang_interrupt(dev->irq, dev, NULL);
2020 else
2021 vortex_interrupt(dev->irq, dev, NULL);
2022 local_irq_restore(flags);
2023 }
2024 }
2025
2026 if (vortex_debug > 0)
2027 dump_tx_ring(dev);
2028
2029 issue_and_wait(dev, TxReset);
2030
2031 vp->stats.tx_errors++;
2032 if (vp->full_bus_master_tx) {
2033 printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002034 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
2035 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036 ioaddr + DownListPtr);
2037 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
2038 netif_wake_queue (dev);
2039 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08002040 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
2041 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 } else {
2043 vp->stats.tx_dropped++;
2044 netif_wake_queue(dev);
2045 }
2046
2047 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08002048 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002049 dev->trans_start = jiffies;
2050
2051 /* Switch to register set 7 for normal use. */
2052 EL3WINDOW(7);
2053}
2054
2055/*
2056 * Handle uncommon interrupt sources. This is a separate routine to minimize
2057 * the cache impact.
2058 */
2059static void
2060vortex_error(struct net_device *dev, int status)
2061{
2062 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002063 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064 int do_tx_reset = 0, reset_mask = 0;
2065 unsigned char tx_status = 0;
2066
2067 if (vortex_debug > 2) {
2068 printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status);
2069 }
2070
2071 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08002072 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002073 /* Presumably a tx-timeout. We must merely re-enable. */
2074 if (vortex_debug > 2
2075 || (tx_status != 0x88 && vortex_debug > 0)) {
2076 printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n",
2077 dev->name, tx_status);
2078 if (tx_status == 0x82) {
2079 printk(KERN_ERR "Probably a duplex mismatch. See "
2080 "Documentation/networking/vortex.txt\n");
2081 }
2082 dump_tx_ring(dev);
2083 }
2084 if (tx_status & 0x14) vp->stats.tx_fifo_errors++;
2085 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
Andrew Morton00007542006-03-31 02:30:47 -08002086 if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
John W. Linville62afe592005-11-07 00:58:02 -08002087 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088 if (tx_status & 0x30) { /* txJabber or txUnderrun */
2089 do_tx_reset = 1;
Andrew Morton00007542006-03-31 02:30:47 -08002090 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
2091 do_tx_reset = 1;
2092 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
2093 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002094 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095 }
2096 }
2097
2098 if (status & RxEarly) { /* Rx early is unused. */
2099 vortex_rx(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002100 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101 }
2102 if (status & StatsFull) { /* Empty statistics. */
2103 static int DoneDidThat;
2104 if (vortex_debug > 4)
2105 printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
2106 update_stats(ioaddr, dev);
2107 /* HACK: Disable statistics as an interrupt source. */
2108 /* This occurs when we have the wrong media type! */
2109 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08002110 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 printk(KERN_WARNING "%s: Updating statistics failed, disabling "
2112 "stats as an interrupt source.\n", dev->name);
2113 EL3WINDOW(5);
John W. Linville62afe592005-11-07 00:58:02 -08002114 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115 vp->intr_enable &= ~StatsFull;
2116 EL3WINDOW(7);
2117 DoneDidThat++;
2118 }
2119 }
2120 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08002121 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
2122 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 }
2124 if (status & HostError) {
2125 u16 fifo_diag;
2126 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002127 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128 printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
2129 dev->name, fifo_diag);
2130 /* Adapter failure requires Tx/Rx reset and reinit. */
2131 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08002132 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133 /* 0x80000000 PCI master abort. */
2134 /* 0x40000000 PCI target abort. */
2135 if (vortex_debug)
2136 printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
2137
2138 /* In this case, blow the card away */
2139 /* Must not enter D3 or we can't legally issue the reset! */
2140 vortex_down(dev, 0);
2141 issue_and_wait(dev, TotalReset | 0xff);
2142 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
2143 } else if (fifo_diag & 0x0400)
2144 do_tx_reset = 1;
2145 if (fifo_diag & 0x3000) {
2146 /* Reset Rx fifo and upload logic */
2147 issue_and_wait(dev, RxReset|0x07);
2148 /* Set the Rx filter to the current state. */
2149 set_rx_mode(dev);
2150 /* enable 802.1q VLAN tagged frames */
2151 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08002152 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2153 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154 }
2155 }
2156
2157 if (do_tx_reset) {
2158 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08002159 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160 if (!vp->full_bus_master_tx)
2161 netif_wake_queue(dev);
2162 }
2163}
2164
2165static int
2166vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2167{
2168 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002169 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170
2171 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002172 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 if (vp->bus_master) {
2174 /* Set the bus-master controller to transfer the packet. */
2175 int len = (skb->len + 3) & ~3;
Steffen Klasserta880c4c2006-03-26 01:37:43 -08002176 iowrite32(vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177 ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002178 iowrite16(len, ioaddr + Wn7_MasterLen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002180 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181 /* netif_wake_queue() will be called at the DMADone interrupt. */
2182 } else {
2183 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002184 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002186 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187 netif_start_queue (dev); /* AKPM: redundant? */
2188 } else {
2189 /* Interrupt us when the FIFO has room for max-sized packet. */
2190 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002191 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192 }
2193 }
2194
2195 dev->trans_start = jiffies;
2196
2197 /* Clear the Tx status stack. */
2198 {
2199 int tx_status;
2200 int i = 32;
2201
John W. Linville62afe592005-11-07 00:58:02 -08002202 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2204 if (vortex_debug > 2)
2205 printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
2206 dev->name, tx_status);
2207 if (tx_status & 0x04) vp->stats.tx_fifo_errors++;
2208 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
2209 if (tx_status & 0x30) {
2210 issue_and_wait(dev, TxReset);
2211 }
John W. Linville62afe592005-11-07 00:58:02 -08002212 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 }
John W. Linville62afe592005-11-07 00:58:02 -08002214 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215 }
2216 }
2217 return 0;
2218}
2219
2220static int
2221boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2222{
2223 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002224 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 /* Calculate the next Tx descriptor entry. */
2226 int entry = vp->cur_tx % TX_RING_SIZE;
2227 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2228 unsigned long flags;
2229
2230 if (vortex_debug > 6) {
2231 printk(KERN_DEBUG "boomerang_start_xmit()\n");
John W. Linville0f667ff2005-06-21 17:15:14 -07002232 printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
2233 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234 }
2235
2236 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2237 if (vortex_debug > 0)
2238 printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n",
2239 dev->name);
2240 netif_stop_queue(dev);
2241 return 1;
2242 }
2243
2244 vp->tx_skbuff[entry] = skb;
2245
2246 vp->tx_ring[entry].next = 0;
2247#if DO_ZEROCOPY
2248 if (skb->ip_summed != CHECKSUM_HW)
2249 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2250 else
2251 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2252
2253 if (!skb_shinfo(skb)->nr_frags) {
2254 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2255 skb->len, PCI_DMA_TODEVICE));
2256 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2257 } else {
2258 int i;
2259
2260 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2261 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2262 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2263
2264 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2265 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2266
2267 vp->tx_ring[entry].frag[i+1].addr =
2268 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2269 (void*)page_address(frag->page) + frag->page_offset,
2270 frag->size, PCI_DMA_TODEVICE));
2271
2272 if (i == skb_shinfo(skb)->nr_frags-1)
2273 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2274 else
2275 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2276 }
2277 }
2278#else
2279 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2280 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2281 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2282#endif
2283
2284 spin_lock_irqsave(&vp->lock, flags);
2285 /* Wait for the stall to complete. */
2286 issue_and_wait(dev, DownStall);
2287 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002288 if (ioread32(ioaddr + DownListPtr) == 0) {
2289 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290 vp->queued_packet++;
2291 }
2292
2293 vp->cur_tx++;
2294 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2295 netif_stop_queue (dev);
2296 } else { /* Clear previous interrupt enable. */
2297#if defined(tx_interrupt_mitigation)
2298 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2299 * were selected, this would corrupt DN_COMPLETE. No?
2300 */
2301 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2302#endif
2303 }
John W. Linville62afe592005-11-07 00:58:02 -08002304 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002305 spin_unlock_irqrestore(&vp->lock, flags);
2306 dev->trans_start = jiffies;
2307 return 0;
2308}
2309
2310/* The interrupt handler does all of the Rx thread work and cleans up
2311 after the Tx thread. */
2312
2313/*
2314 * This is the ISR for the vortex series chips.
2315 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2316 */
2317
2318static irqreturn_t
2319vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2320{
2321 struct net_device *dev = dev_id;
2322 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002323 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002324 int status;
2325 int work_done = max_interrupt_work;
2326 int handled = 0;
2327
John W. Linville62afe592005-11-07 00:58:02 -08002328 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002329 spin_lock(&vp->lock);
2330
John W. Linville62afe592005-11-07 00:58:02 -08002331 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332
2333 if (vortex_debug > 6)
2334 printk("vortex_interrupt(). status=0x%4x\n", status);
2335
2336 if ((status & IntLatch) == 0)
2337 goto handler_exit; /* No interrupt: shared IRQs cause this */
2338 handled = 1;
2339
2340 if (status & IntReq) {
2341 status |= vp->deferred;
2342 vp->deferred = 0;
2343 }
2344
2345 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2346 goto handler_exit;
2347
2348 if (vortex_debug > 4)
2349 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002350 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351
2352 do {
2353 if (vortex_debug > 5)
2354 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2355 dev->name, status);
2356 if (status & RxComplete)
2357 vortex_rx(dev);
2358
2359 if (status & TxAvailable) {
2360 if (vortex_debug > 5)
2361 printk(KERN_DEBUG " TX room bit was handled.\n");
2362 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002363 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364 netif_wake_queue (dev);
2365 }
2366
2367 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002368 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2369 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2371 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002372 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373 /*
2374 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2375 * insufficient FIFO room, the TxAvailable test will succeed and call
2376 * netif_wake_queue()
2377 */
2378 netif_wake_queue(dev);
2379 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002380 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002381 netif_stop_queue(dev);
2382 }
2383 }
2384 }
2385 /* Check for all uncommon interrupts at once. */
2386 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2387 if (status == 0xffff)
2388 break;
2389 vortex_error(dev, status);
2390 }
2391
2392 if (--work_done < 0) {
2393 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2394 "%4.4x.\n", dev->name, status);
2395 /* Disable all pending interrupts. */
2396 do {
2397 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002398 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002399 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002400 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2401 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002402 /* The timer will reenable interrupts. */
2403 mod_timer(&vp->timer, jiffies + 1*HZ);
2404 break;
2405 }
2406 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002407 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2408 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002409
2410 if (vortex_debug > 4)
2411 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2412 dev->name, status);
2413handler_exit:
2414 spin_unlock(&vp->lock);
2415 return IRQ_RETVAL(handled);
2416}
2417
2418/*
2419 * This is the ISR for the boomerang series chips.
2420 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2421 */
2422
2423static irqreturn_t
2424boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2425{
2426 struct net_device *dev = dev_id;
2427 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002428 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002429 int status;
2430 int work_done = max_interrupt_work;
2431
John W. Linville62afe592005-11-07 00:58:02 -08002432 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002433
2434 /*
2435 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2436 * and boomerang_start_xmit
2437 */
2438 spin_lock(&vp->lock);
2439
John W. Linville62afe592005-11-07 00:58:02 -08002440 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002441
2442 if (vortex_debug > 6)
2443 printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status);
2444
2445 if ((status & IntLatch) == 0)
2446 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2447
2448 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2449 if (vortex_debug > 1)
2450 printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n");
2451 goto handler_exit;
2452 }
2453
2454 if (status & IntReq) {
2455 status |= vp->deferred;
2456 vp->deferred = 0;
2457 }
2458
2459 if (vortex_debug > 4)
2460 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002461 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002462 do {
2463 if (vortex_debug > 5)
2464 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2465 dev->name, status);
2466 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002467 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002468 if (vortex_debug > 5)
2469 printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n");
2470 boomerang_rx(dev);
2471 }
2472
2473 if (status & DownComplete) {
2474 unsigned int dirty_tx = vp->dirty_tx;
2475
John W. Linville62afe592005-11-07 00:58:02 -08002476 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002477 while (vp->cur_tx - dirty_tx > 0) {
2478 int entry = dirty_tx % TX_RING_SIZE;
2479#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002480 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002481 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2482 break; /* It still hasn't been processed. */
2483#else
2484 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2485 break; /* It still hasn't been processed. */
2486#endif
2487
2488 if (vp->tx_skbuff[entry]) {
2489 struct sk_buff *skb = vp->tx_skbuff[entry];
2490#if DO_ZEROCOPY
2491 int i;
2492 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2493 pci_unmap_single(VORTEX_PCI(vp),
2494 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2495 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2496 PCI_DMA_TODEVICE);
2497#else
2498 pci_unmap_single(VORTEX_PCI(vp),
2499 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2500#endif
2501 dev_kfree_skb_irq(skb);
2502 vp->tx_skbuff[entry] = NULL;
2503 } else {
2504 printk(KERN_DEBUG "boomerang_interrupt: no skb!\n");
2505 }
2506 /* vp->stats.tx_packets++; Counted below. */
2507 dirty_tx++;
2508 }
2509 vp->dirty_tx = dirty_tx;
2510 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2511 if (vortex_debug > 6)
2512 printk(KERN_DEBUG "boomerang_interrupt: wake queue\n");
2513 netif_wake_queue (dev);
2514 }
2515 }
2516
2517 /* Check for all uncommon interrupts at once. */
2518 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2519 vortex_error(dev, status);
2520
2521 if (--work_done < 0) {
2522 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2523 "%4.4x.\n", dev->name, status);
2524 /* Disable all pending interrupts. */
2525 do {
2526 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002527 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002529 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2530 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531 /* The timer will reenable interrupts. */
2532 mod_timer(&vp->timer, jiffies + 1*HZ);
2533 break;
2534 }
2535 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002536 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002538 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002539
John W. Linville62afe592005-11-07 00:58:02 -08002540 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002541
2542 if (vortex_debug > 4)
2543 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2544 dev->name, status);
2545handler_exit:
2546 spin_unlock(&vp->lock);
2547 return IRQ_HANDLED;
2548}
2549
2550static int vortex_rx(struct net_device *dev)
2551{
2552 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002553 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002554 int i;
2555 short rx_status;
2556
2557 if (vortex_debug > 5)
2558 printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002559 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2560 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002561 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002562 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002563 if (vortex_debug > 2)
2564 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2565 vp->stats.rx_errors++;
2566 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2567 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2568 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2569 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2570 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2571 } else {
2572 /* The packet length: up to 4.5K!. */
2573 int pkt_len = rx_status & 0x1fff;
2574 struct sk_buff *skb;
2575
2576 skb = dev_alloc_skb(pkt_len + 5);
2577 if (vortex_debug > 4)
2578 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2579 pkt_len, rx_status);
2580 if (skb != NULL) {
2581 skb->dev = dev;
2582 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2583 /* 'skb_put()' points to the start of sk_buff data area. */
2584 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002585 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002586 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2587 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002588 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2589 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2590 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2591 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592 ;
2593 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2594 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002595 ioread32_rep(ioaddr + RX_FIFO,
2596 skb_put(skb, pkt_len),
2597 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598 }
John W. Linville62afe592005-11-07 00:58:02 -08002599 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600 skb->protocol = eth_type_trans(skb, dev);
2601 netif_rx(skb);
2602 dev->last_rx = jiffies;
2603 vp->stats.rx_packets++;
2604 /* Wait a limited time to go to next packet. */
2605 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002606 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002607 break;
2608 continue;
2609 } else if (vortex_debug > 0)
2610 printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
2611 "size %d.\n", dev->name, pkt_len);
John W. Linville35b30672005-11-07 00:58:08 -08002612 vp->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002613 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002614 issue_and_wait(dev, RxDiscard);
2615 }
2616
2617 return 0;
2618}
2619
2620static int
2621boomerang_rx(struct net_device *dev)
2622{
2623 struct vortex_private *vp = netdev_priv(dev);
2624 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002625 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002626 int rx_status;
2627 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2628
2629 if (vortex_debug > 5)
John W. Linville62afe592005-11-07 00:58:02 -08002630 printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631
2632 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2633 if (--rx_work_limit < 0)
2634 break;
2635 if (rx_status & RxDError) { /* Error, update stats. */
2636 unsigned char rx_error = rx_status >> 16;
2637 if (vortex_debug > 2)
2638 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2639 vp->stats.rx_errors++;
2640 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2641 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2642 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2643 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2644 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2645 } else {
2646 /* The packet length: up to 4.5K!. */
2647 int pkt_len = rx_status & 0x1fff;
2648 struct sk_buff *skb;
2649 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2650
2651 if (vortex_debug > 4)
2652 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2653 pkt_len, rx_status);
2654
2655 /* Check if the packet is long enough to just accept without
2656 copying to a properly sized skbuff. */
2657 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
2658 skb->dev = dev;
2659 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2660 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2661 /* 'skb_put()' points to the start of sk_buff data area. */
2662 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002663 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664 pkt_len);
2665 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2666 vp->rx_copy++;
2667 } else {
2668 /* Pass up the skbuff already on the Rx ring. */
2669 skb = vp->rx_skbuff[entry];
2670 vp->rx_skbuff[entry] = NULL;
2671 skb_put(skb, pkt_len);
2672 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2673 vp->rx_nocopy++;
2674 }
2675 skb->protocol = eth_type_trans(skb, dev);
2676 { /* Use hardware checksum info. */
2677 int csum_bits = rx_status & 0xee000000;
2678 if (csum_bits &&
2679 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2680 csum_bits == (IPChksumValid | UDPChksumValid))) {
2681 skb->ip_summed = CHECKSUM_UNNECESSARY;
2682 vp->rx_csumhits++;
2683 }
2684 }
2685 netif_rx(skb);
2686 dev->last_rx = jiffies;
2687 vp->stats.rx_packets++;
2688 }
2689 entry = (++vp->cur_rx) % RX_RING_SIZE;
2690 }
2691 /* Refill the Rx ring buffers. */
2692 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2693 struct sk_buff *skb;
2694 entry = vp->dirty_rx % RX_RING_SIZE;
2695 if (vp->rx_skbuff[entry] == NULL) {
2696 skb = dev_alloc_skb(PKT_BUF_SZ);
2697 if (skb == NULL) {
2698 static unsigned long last_jif;
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -08002699 if (time_after(jiffies, last_jif + 10 * HZ)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 printk(KERN_WARNING "%s: memory shortage\n", dev->name);
2701 last_jif = jiffies;
2702 }
2703 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2704 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2705 break; /* Bad news! */
2706 }
2707 skb->dev = dev; /* Mark as being used by this device. */
2708 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07002709 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 -07002710 vp->rx_skbuff[entry] = skb;
2711 }
2712 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002713 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002714 }
2715 return 0;
2716}
2717
2718/*
2719 * If we've hit a total OOM refilling the Rx ring we poll once a second
2720 * for some memory. Otherwise there is no way to restart the rx process.
2721 */
2722static void
2723rx_oom_timer(unsigned long arg)
2724{
2725 struct net_device *dev = (struct net_device *)arg;
2726 struct vortex_private *vp = netdev_priv(dev);
2727
2728 spin_lock_irq(&vp->lock);
2729 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2730 boomerang_rx(dev);
2731 if (vortex_debug > 1) {
2732 printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name,
2733 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2734 }
2735 spin_unlock_irq(&vp->lock);
2736}
2737
2738static void
2739vortex_down(struct net_device *dev, int final_down)
2740{
2741 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002742 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002743
2744 netif_stop_queue (dev);
2745
2746 del_timer_sync(&vp->rx_oom_timer);
2747 del_timer_sync(&vp->timer);
2748
2749 /* Turn off statistics ASAP. We update vp->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002750 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002751
2752 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002753 iowrite16(RxDisable, ioaddr + EL3_CMD);
2754 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002755
2756 /* Disable receiving 802.1q tagged frames */
2757 set_8021q_mode(dev, 0);
2758
2759 if (dev->if_port == XCVR_10base2)
2760 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002761 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002762
John W. Linville62afe592005-11-07 00:58:02 -08002763 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002764
2765 update_stats(ioaddr, dev);
2766 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002767 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002768 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002769 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002770
2771 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002772 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002773 pci_save_state(VORTEX_PCI(vp));
2774 acpi_set_WOL(dev);
2775 }
2776}
2777
2778static int
2779vortex_close(struct net_device *dev)
2780{
2781 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002782 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002783 int i;
2784
2785 if (netif_device_present(dev))
2786 vortex_down(dev, 1);
2787
2788 if (vortex_debug > 1) {
2789 printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002790 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002791 printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
2792 " tx_queued %d Rx pre-checksummed %d.\n",
2793 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2794 }
2795
2796#if DO_ZEROCOPY
John W. Linville32fb5f02005-11-07 00:58:05 -08002797 if (vp->rx_csumhits &&
2798 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2799 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
2800 printk(KERN_WARNING "%s supports hardware checksums, and we're "
2801 "not using them!\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002802 }
2803#endif
2804
2805 free_irq(dev->irq, dev);
2806
2807 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2808 for (i = 0; i < RX_RING_SIZE; i++)
2809 if (vp->rx_skbuff[i]) {
2810 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2811 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2812 dev_kfree_skb(vp->rx_skbuff[i]);
2813 vp->rx_skbuff[i] = NULL;
2814 }
2815 }
2816 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2817 for (i = 0; i < TX_RING_SIZE; i++) {
2818 if (vp->tx_skbuff[i]) {
2819 struct sk_buff *skb = vp->tx_skbuff[i];
2820#if DO_ZEROCOPY
2821 int k;
2822
2823 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2824 pci_unmap_single(VORTEX_PCI(vp),
2825 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2826 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2827 PCI_DMA_TODEVICE);
2828#else
2829 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2830#endif
2831 dev_kfree_skb(skb);
2832 vp->tx_skbuff[i] = NULL;
2833 }
2834 }
2835 }
2836
2837 return 0;
2838}
2839
2840static void
2841dump_tx_ring(struct net_device *dev)
2842{
2843 if (vortex_debug > 0) {
2844 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002845 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002846
2847 if (vp->full_bus_master_tx) {
2848 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002849 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002850
2851 printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
2852 vp->full_bus_master_tx,
2853 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2854 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
2855 printk(KERN_ERR " Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002856 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002857 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2858 issue_and_wait(dev, DownStall);
2859 for (i = 0; i < TX_RING_SIZE; i++) {
2860 printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i,
2861 &vp->tx_ring[i],
2862#if DO_ZEROCOPY
2863 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2864#else
2865 le32_to_cpu(vp->tx_ring[i].length),
2866#endif
2867 le32_to_cpu(vp->tx_ring[i].status));
2868 }
2869 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002870 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002871 }
2872 }
2873}
2874
2875static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2876{
2877 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002878 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002879 unsigned long flags;
2880
2881 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2882 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002883 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002884 spin_unlock_irqrestore (&vp->lock, flags);
2885 }
2886 return &vp->stats;
2887}
2888
2889/* Update statistics.
2890 Unlike with the EL3 we need not worry about interrupts changing
2891 the window setting from underneath us, but we must still guard
2892 against a race condition with a StatsUpdate interrupt updating the
2893 table. This is done by checking that the ASM (!) code generated uses
2894 atomic updates with '+='.
2895 */
John W. Linville62afe592005-11-07 00:58:02 -08002896static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002897{
2898 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002899 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002900
2901 if (old_window == 0xffff) /* Chip suspended or ejected. */
2902 return;
2903 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2904 /* Switch to the stats window, and read everything. */
2905 EL3WINDOW(6);
John W. Linville62afe592005-11-07 00:58:02 -08002906 vp->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2907 vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
John W. Linville62afe592005-11-07 00:58:02 -08002908 vp->stats.tx_window_errors += ioread8(ioaddr + 4);
2909 vp->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2910 vp->stats.tx_packets += ioread8(ioaddr + 6);
2911 vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
2912 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002913 /* Don't bother with register 9, an extension of registers 6&7.
2914 If we do use the 6&7 values the atomic update assumption above
2915 is invalid. */
John W. Linville62afe592005-11-07 00:58:02 -08002916 vp->stats.rx_bytes += ioread16(ioaddr + 10);
2917 vp->stats.tx_bytes += ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002918 /* Extra stats for get_ethtool_stats() */
John W. Linville62afe592005-11-07 00:58:02 -08002919 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002920 vp->xstats.tx_single_collisions += ioread8(ioaddr + 3);
John W. Linville62afe592005-11-07 00:58:02 -08002921 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002922 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002923 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002924
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002925 vp->stats.collisions = vp->xstats.tx_multiple_collisions
2926 + vp->xstats.tx_single_collisions
2927 + vp->xstats.tx_max_collisions;
2928
Linus Torvalds1da177e2005-04-16 15:20:36 -07002929 {
John W. Linville62afe592005-11-07 00:58:02 -08002930 u8 up = ioread8(ioaddr + 13);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002931 vp->stats.rx_bytes += (up & 0x0f) << 16;
2932 vp->stats.tx_bytes += (up & 0xf0) << 12;
2933 }
2934
2935 EL3WINDOW(old_window >> 13);
2936 return;
2937}
2938
2939static int vortex_nway_reset(struct net_device *dev)
2940{
2941 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002942 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002943 unsigned long flags;
2944 int rc;
2945
2946 spin_lock_irqsave(&vp->lock, flags);
2947 EL3WINDOW(4);
2948 rc = mii_nway_restart(&vp->mii);
2949 spin_unlock_irqrestore(&vp->lock, flags);
2950 return rc;
2951}
2952
Linus Torvalds1da177e2005-04-16 15:20:36 -07002953static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2954{
2955 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002956 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002957 unsigned long flags;
2958 int rc;
2959
2960 spin_lock_irqsave(&vp->lock, flags);
2961 EL3WINDOW(4);
2962 rc = mii_ethtool_gset(&vp->mii, cmd);
2963 spin_unlock_irqrestore(&vp->lock, flags);
2964 return rc;
2965}
2966
2967static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2968{
2969 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002970 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002971 unsigned long flags;
2972 int rc;
2973
2974 spin_lock_irqsave(&vp->lock, flags);
2975 EL3WINDOW(4);
2976 rc = mii_ethtool_sset(&vp->mii, cmd);
2977 spin_unlock_irqrestore(&vp->lock, flags);
2978 return rc;
2979}
2980
2981static u32 vortex_get_msglevel(struct net_device *dev)
2982{
2983 return vortex_debug;
2984}
2985
2986static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2987{
2988 vortex_debug = dbg;
2989}
2990
2991static int vortex_get_stats_count(struct net_device *dev)
2992{
2993 return VORTEX_NUM_STATS;
2994}
2995
2996static void vortex_get_ethtool_stats(struct net_device *dev,
2997 struct ethtool_stats *stats, u64 *data)
2998{
2999 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003000 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003001 unsigned long flags;
3002
3003 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08003004 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003005 spin_unlock_irqrestore(&vp->lock, flags);
3006
3007 data[0] = vp->xstats.tx_deferred;
Steffen Klassert8d1d0342006-02-03 03:03:57 -08003008 data[1] = vp->xstats.tx_max_collisions;
3009 data[2] = vp->xstats.tx_multiple_collisions;
3010 data[3] = vp->xstats.tx_single_collisions;
3011 data[4] = vp->xstats.rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003012}
3013
3014
3015static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
3016{
3017 switch (stringset) {
3018 case ETH_SS_STATS:
3019 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
3020 break;
3021 default:
3022 WARN_ON(1);
3023 break;
3024 }
3025}
3026
3027static void vortex_get_drvinfo(struct net_device *dev,
3028 struct ethtool_drvinfo *info)
3029{
3030 struct vortex_private *vp = netdev_priv(dev);
3031
3032 strcpy(info->driver, DRV_NAME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003033 if (VORTEX_PCI(vp)) {
3034 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
3035 } else {
3036 if (VORTEX_EISA(vp))
3037 sprintf(info->bus_info, vp->gendev->bus_id);
3038 else
3039 sprintf(info->bus_info, "EISA 0x%lx %d",
3040 dev->base_addr, dev->irq);
3041 }
3042}
3043
3044static struct ethtool_ops vortex_ethtool_ops = {
3045 .get_drvinfo = vortex_get_drvinfo,
3046 .get_strings = vortex_get_strings,
3047 .get_msglevel = vortex_get_msglevel,
3048 .set_msglevel = vortex_set_msglevel,
3049 .get_ethtool_stats = vortex_get_ethtool_stats,
3050 .get_stats_count = vortex_get_stats_count,
3051 .get_settings = vortex_get_settings,
3052 .set_settings = vortex_set_settings,
Steffen Klassert373a6882006-03-26 01:37:41 -08003053 .get_link = ethtool_op_get_link,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003054 .nway_reset = vortex_nway_reset,
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003055 .get_perm_addr = ethtool_op_get_perm_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003056};
3057
3058#ifdef CONFIG_PCI
3059/*
3060 * Must power the device up to do MDIO operations
3061 */
3062static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3063{
3064 int err;
3065 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003066 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003067 unsigned long flags;
3068 int state = 0;
3069
3070 if(VORTEX_PCI(vp))
3071 state = VORTEX_PCI(vp)->current_state;
3072
3073 /* The kernel core really should have pci_get_power_state() */
3074
3075 if(state != 0)
3076 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
3077 spin_lock_irqsave(&vp->lock, flags);
3078 EL3WINDOW(4);
3079 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
3080 spin_unlock_irqrestore(&vp->lock, flags);
3081 if(state != 0)
3082 pci_set_power_state(VORTEX_PCI(vp), state);
3083
3084 return err;
3085}
3086#endif
3087
3088
3089/* Pre-Cyclone chips have no documented multicast filter, so the only
3090 multicast setting is to receive all multicast frames. At least
3091 the chip has a very clean way to set the mode, unlike many others. */
3092static void set_rx_mode(struct net_device *dev)
3093{
John W. Linville62afe592005-11-07 00:58:02 -08003094 struct vortex_private *vp = netdev_priv(dev);
3095 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003096 int new_mode;
3097
3098 if (dev->flags & IFF_PROMISC) {
3099 if (vortex_debug > 0)
3100 printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
3101 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
3102 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
3103 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
3104 } else
3105 new_mode = SetRxFilter | RxStation | RxBroadcast;
3106
John W. Linville62afe592005-11-07 00:58:02 -08003107 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003108}
3109
3110#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
3111/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
3112 Note that this must be done after each RxReset due to some backwards
3113 compatibility logic in the Cyclone and Tornado ASICs */
3114
3115/* The Ethernet Type used for 802.1q tagged frames */
3116#define VLAN_ETHER_TYPE 0x8100
3117
3118static void set_8021q_mode(struct net_device *dev, int enable)
3119{
3120 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003121 void __iomem *ioaddr = vp->ioaddr;
3122 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003123 int mac_ctrl;
3124
3125 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
3126 /* cyclone and tornado chipsets can recognize 802.1q
3127 * tagged frames and treat them correctly */
3128
3129 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
3130 if (enable)
3131 max_pkt_size += 4; /* 802.1Q VLAN tag */
3132
3133 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003134 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003135
3136 /* set VlanEtherType to let the hardware checksumming
3137 treat tagged frames correctly */
3138 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003139 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003140 } else {
3141 /* on older cards we have to enable large frames */
3142
3143 vp->large_frames = dev->mtu > 1500 || enable;
3144
3145 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003146 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003147 if (vp->large_frames)
3148 mac_ctrl |= 0x40;
3149 else
3150 mac_ctrl &= ~0x40;
John W. Linville62afe592005-11-07 00:58:02 -08003151 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003152 }
3153
3154 EL3WINDOW(old_window);
3155}
3156#else
3157
3158static void set_8021q_mode(struct net_device *dev, int enable)
3159{
3160}
3161
3162
3163#endif
3164
3165/* MII transceiver control section.
3166 Read and write the MII registers using software-generated serial
3167 MDIO protocol. See the MII specifications or DP83840A data sheet
3168 for details. */
3169
3170/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3171 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3172 "overclocking" issues. */
John W. Linville62afe592005-11-07 00:58:02 -08003173#define mdio_delay() ioread32(mdio_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003174
3175#define MDIO_SHIFT_CLK 0x01
3176#define MDIO_DIR_WRITE 0x04
3177#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3178#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3179#define MDIO_DATA_READ 0x02
3180#define MDIO_ENB_IN 0x00
3181
3182/* Generate the preamble required for initial synchronization and
3183 a few older transceivers. */
John W. Linville62afe592005-11-07 00:58:02 -08003184static void mdio_sync(void __iomem *ioaddr, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003185{
John W. Linville62afe592005-11-07 00:58:02 -08003186 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003187
3188 /* Establish sync by sending at least 32 logic ones. */
3189 while (-- bits >= 0) {
John W. Linville62afe592005-11-07 00:58:02 -08003190 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003191 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003192 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003193 mdio_delay();
3194 }
3195}
3196
3197static int mdio_read(struct net_device *dev, int phy_id, int location)
3198{
3199 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003200 struct vortex_private *vp = netdev_priv(dev);
3201 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003202 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3203 unsigned int retval = 0;
John W. Linville62afe592005-11-07 00:58:02 -08003204 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003205
3206 if (mii_preamble_required)
3207 mdio_sync(ioaddr, 32);
3208
3209 /* Shift the read command bits out. */
3210 for (i = 14; i >= 0; i--) {
3211 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003212 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003213 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003214 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003215 mdio_delay();
3216 }
3217 /* Read the two transition, 16 data, and wire-idle bits. */
3218 for (i = 19; i > 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003219 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003220 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003221 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3222 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003223 mdio_delay();
3224 }
3225 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3226}
3227
3228static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3229{
John W. Linville62afe592005-11-07 00:58:02 -08003230 struct vortex_private *vp = netdev_priv(dev);
3231 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003232 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
John W. Linville62afe592005-11-07 00:58:02 -08003233 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003234 int i;
3235
3236 if (mii_preamble_required)
3237 mdio_sync(ioaddr, 32);
3238
3239 /* Shift the command bits out. */
3240 for (i = 31; i >= 0; i--) {
3241 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003242 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003243 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003244 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003245 mdio_delay();
3246 }
3247 /* Leave the interface idle. */
3248 for (i = 1; i >= 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003249 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003250 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003251 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003252 mdio_delay();
3253 }
3254 return;
3255}
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003256
Linus Torvalds1da177e2005-04-16 15:20:36 -07003257/* ACPI: Advanced Configuration and Power Interface. */
3258/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3259static void acpi_set_WOL(struct net_device *dev)
3260{
3261 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003262 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003263
3264 if (vp->enable_wol) {
3265 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3266 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003267 iowrite16(2, ioaddr + 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003268 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003269 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3270 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003271
3272 pci_enable_wake(VORTEX_PCI(vp), 0, 1);
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003273
3274 /* Change the power state to D3; RxEnable doesn't take effect. */
3275 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003276 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003277}
3278
3279
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003280static void __devexit vortex_remove_one(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003281{
3282 struct net_device *dev = pci_get_drvdata(pdev);
3283 struct vortex_private *vp;
3284
3285 if (!dev) {
3286 printk("vortex_remove_one called for Compaq device!\n");
3287 BUG();
3288 }
3289
3290 vp = netdev_priv(dev);
3291
John W. Linville62afe592005-11-07 00:58:02 -08003292 if (vp->cb_fn_base)
3293 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3294
Linus Torvalds1da177e2005-04-16 15:20:36 -07003295 unregister_netdev(dev);
3296
3297 if (VORTEX_PCI(vp)) {
3298 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3299 if (vp->pm_state_valid)
3300 pci_restore_state(VORTEX_PCI(vp));
3301 pci_disable_device(VORTEX_PCI(vp));
3302 }
3303 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003304 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3305 vp->ioaddr + EL3_CMD);
3306
3307 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003308
3309 pci_free_consistent(pdev,
3310 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3311 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3312 vp->rx_ring,
3313 vp->rx_ring_dma);
3314 if (vp->must_free_region)
3315 release_region(dev->base_addr, vp->io_size);
3316 free_netdev(dev);
3317}
3318
3319
3320static struct pci_driver vortex_driver = {
3321 .name = "3c59x",
3322 .probe = vortex_init_one,
3323 .remove = __devexit_p(vortex_remove_one),
3324 .id_table = vortex_pci_tbl,
3325#ifdef CONFIG_PM
3326 .suspend = vortex_suspend,
3327 .resume = vortex_resume,
3328#endif
3329};
3330
3331
3332static int vortex_have_pci;
3333static int vortex_have_eisa;
3334
3335
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003336static int __init vortex_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003337{
3338 int pci_rc, eisa_rc;
3339
3340 pci_rc = pci_module_init(&vortex_driver);
3341 eisa_rc = vortex_eisa_init();
3342
3343 if (pci_rc == 0)
3344 vortex_have_pci = 1;
3345 if (eisa_rc > 0)
3346 vortex_have_eisa = 1;
3347
3348 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3349}
3350
3351
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003352static void __exit vortex_eisa_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003353{
3354 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003355 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003356
3357#ifdef CONFIG_EISA
3358 /* Take care of the EISA devices */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003359 eisa_driver_unregister(&vortex_eisa_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003360#endif
3361
3362 if (compaq_net_device) {
3363 vp = compaq_net_device->priv;
John W. Linville62afe592005-11-07 00:58:02 -08003364 ioaddr = ioport_map(compaq_net_device->base_addr,
3365 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003366
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003367 unregister_netdev(compaq_net_device);
3368 iowrite16(TotalReset, ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08003369 release_region(compaq_net_device->base_addr,
3370 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003371
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003372 free_netdev(compaq_net_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003373 }
3374}
3375
3376
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003377static void __exit vortex_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003378{
3379 if (vortex_have_pci)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003380 pci_unregister_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003381 if (vortex_have_eisa)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003382 vortex_eisa_cleanup();
Linus Torvalds1da177e2005-04-16 15:20:36 -07003383}
3384
3385
3386module_init(vortex_init);
3387module_exit(vortex_cleanup);