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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"
199#define DRV_VERSION "LK1.1.19"
200#define DRV_RELDATE "10 Nov 2002"
201
202
203
204/* A few values that may be tweaked. */
205/* Keep the ring sizes a power of two for efficiency. */
206#define TX_RING_SIZE 16
207#define RX_RING_SIZE 32
208#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
209
210/* "Knobs" that adjust features and parameters. */
211/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
212 Setting to > 1512 effectively disables this feature. */
213#ifndef __arm__
214static int rx_copybreak = 200;
215#else
216/* ARM systems perform better by disregarding the bus-master
217 transfer capability of these cards. -- rmk */
218static int rx_copybreak = 1513;
219#endif
220/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
221static const int mtu = 1500;
222/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
223static int max_interrupt_work = 32;
224/* Tx timeout interval (millisecs) */
225static int watchdog = 5000;
226
227/* Allow aggregation of Tx interrupts. Saves CPU load at the cost
228 * of possible Tx stalls if the system is blocking interrupts
229 * somewhere else. Undefine this to disable.
230 */
231#define tx_interrupt_mitigation 1
232
233/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
234#define vortex_debug debug
235#ifdef VORTEX_DEBUG
236static int vortex_debug = VORTEX_DEBUG;
237#else
238static int vortex_debug = 1;
239#endif
240
241#include <linux/config.h>
242#include <linux/module.h>
243#include <linux/kernel.h>
244#include <linux/string.h>
245#include <linux/timer.h>
246#include <linux/errno.h>
247#include <linux/in.h>
248#include <linux/ioport.h>
249#include <linux/slab.h>
250#include <linux/interrupt.h>
251#include <linux/pci.h>
252#include <linux/mii.h>
253#include <linux/init.h>
254#include <linux/netdevice.h>
255#include <linux/etherdevice.h>
256#include <linux/skbuff.h>
257#include <linux/ethtool.h>
258#include <linux/highmem.h>
259#include <linux/eisa.h>
260#include <linux/bitops.h>
261#include <asm/irq.h> /* For NR_IRQS only. */
262#include <asm/io.h>
263#include <asm/uaccess.h>
264
265/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
266 This is only in the support-all-kernels source code. */
267
268#define RUN_AT(x) (jiffies + (x))
269
270#include <linux/delay.h>
271
272
273static char version[] __devinitdata =
274DRV_NAME ": Donald Becker and others. www.scyld.com/network/vortex.html\n";
275
276MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
277MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver "
278 DRV_VERSION " " DRV_RELDATE);
279MODULE_LICENSE("GPL");
280MODULE_VERSION(DRV_VERSION);
281
282
283/* Operational parameter that usually are not changed. */
284
285/* The Vortex size is twice that of the original EtherLinkIII series: the
286 runtime register window, window 1, is now always mapped in.
287 The Boomerang size is twice as large as the Vortex -- it has additional
288 bus master control registers. */
289#define VORTEX_TOTAL_SIZE 0x20
290#define BOOMERANG_TOTAL_SIZE 0x40
291
292/* Set iff a MII transceiver on any interface requires mdio preamble.
293 This only set with the original DP83840 on older 3c905 boards, so the extra
294 code size of a per-interface flag is not worthwhile. */
295static char mii_preamble_required;
296
297#define PFX DRV_NAME ": "
298
299
300
301/*
302 Theory of Operation
303
304I. Board Compatibility
305
306This device driver is designed for the 3Com FastEtherLink and FastEtherLink
307XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
308versions of the FastEtherLink cards. The supported product IDs are
309 3c590, 3c592, 3c595, 3c597, 3c900, 3c905
310
311The related ISA 3c515 is supported with a separate driver, 3c515.c, included
312with the kernel source or available from
313 cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
314
315II. Board-specific settings
316
317PCI bus devices are configured by the system at boot time, so no jumpers
318need to be set on the board. The system BIOS should be set to assign the
319PCI INTA signal to an otherwise unused system IRQ line.
320
321The EEPROM settings for media type and forced-full-duplex are observed.
322The EEPROM media type should be left at the default "autoselect" unless using
32310base2 or AUI connections which cannot be reliably detected.
324
325III. Driver operation
326
327The 3c59x series use an interface that's very similar to the previous 3c5x9
328series. The primary interface is two programmed-I/O FIFOs, with an
329alternate single-contiguous-region bus-master transfer (see next).
330
331The 3c900 "Boomerang" series uses a full-bus-master interface with separate
332lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
333DEC Tulip and Intel Speedo3. The first chip version retains a compatible
334programmed-I/O interface that has been removed in 'B' and subsequent board
335revisions.
336
337One extension that is advertised in a very large font is that the adapters
338are capable of being bus masters. On the Vortex chip this capability was
339only for a single contiguous region making it far less useful than the full
340bus master capability. There is a significant performance impact of taking
341an extra interrupt or polling for the completion of each transfer, as well
342as difficulty sharing the single transfer engine between the transmit and
343receive threads. Using DMA transfers is a win only with large blocks or
344with the flawed versions of the Intel Orion motherboard PCI controller.
345
346The Boomerang chip's full-bus-master interface is useful, and has the
347currently-unused advantages over other similar chips that queued transmit
348packets may be reordered and receive buffer groups are associated with a
349single frame.
350
351With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
352Rather than a fixed intermediate receive buffer, this scheme allocates
353full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
354the copying breakpoint: it is chosen to trade-off the memory wasted by
355passing the full-sized skbuff to the queue layer for all frames vs. the
356copying cost of copying a frame to a correctly-sized skbuff.
357
358IIIC. Synchronization
359The driver runs as two independent, single-threaded flows of control. One
360is the send-packet routine, which enforces single-threaded use by the
361dev->tbusy flag. The other thread is the interrupt handler, which is single
362threaded by the hardware and other software.
363
364IV. Notes
365
366Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
3673c590, 3c595, and 3c900 boards.
368The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
369the EISA version is called "Demon". According to Terry these names come
370from rides at the local amusement park.
371
372The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
373This driver only supports ethernet packets because of the skbuff allocation
374limit of 4K.
375*/
376
377/* This table drives the PCI probe routines. It's mostly boilerplate in all
378 of the drivers, and will likely be provided by some future kernel.
379*/
380enum pci_flags_bit {
381 PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
382 PCI_ADDR0=0x10<<0, PCI_ADDR1=0x10<<1, PCI_ADDR2=0x10<<2, PCI_ADDR3=0x10<<3,
383};
384
385enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
386 EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
387 HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
388 INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
389 EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
390 EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
391
392enum vortex_chips {
393 CH_3C590 = 0,
394 CH_3C592,
395 CH_3C597,
396 CH_3C595_1,
397 CH_3C595_2,
398
399 CH_3C595_3,
400 CH_3C900_1,
401 CH_3C900_2,
402 CH_3C900_3,
403 CH_3C900_4,
404
405 CH_3C900_5,
406 CH_3C900B_FL,
407 CH_3C905_1,
408 CH_3C905_2,
409 CH_3C905B_1,
410
411 CH_3C905B_2,
412 CH_3C905B_FX,
413 CH_3C905C,
414 CH_3C9202,
415 CH_3C980,
416 CH_3C9805,
417
418 CH_3CSOHO100_TX,
419 CH_3C555,
420 CH_3C556,
421 CH_3C556B,
422 CH_3C575,
423
424 CH_3C575_1,
425 CH_3CCFE575,
426 CH_3CCFE575CT,
427 CH_3CCFE656,
428 CH_3CCFEM656,
429
430 CH_3CCFEM656_1,
431 CH_3C450,
432 CH_3C920,
433 CH_3C982A,
434 CH_3C982B,
435
436 CH_905BT4,
437 CH_920B_EMB_WNM,
438};
439
440
441/* note: this array directly indexed by above enums, and MUST
442 * be kept in sync with both the enums above, and the PCI device
443 * table below
444 */
445static struct vortex_chip_info {
446 const char *name;
447 int flags;
448 int drv_flags;
449 int io_size;
450} vortex_info_tbl[] __devinitdata = {
451 {"3c590 Vortex 10Mbps",
452 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
453 {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
454 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
455 {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
456 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
457 {"3c595 Vortex 100baseTx",
458 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
459 {"3c595 Vortex 100baseT4",
460 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
461
462 {"3c595 Vortex 100base-MII",
463 PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
464 {"3c900 Boomerang 10baseT",
465 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
466 {"3c900 Boomerang 10Mbps Combo",
467 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
468 {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
469 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
470 {"3c900 Cyclone 10Mbps Combo",
471 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
472
473 {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
474 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
475 {"3c900B-FL Cyclone 10base-FL",
476 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
477 {"3c905 Boomerang 100baseTx",
478 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
479 {"3c905 Boomerang 100baseT4",
480 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
481 {"3c905B Cyclone 100baseTx",
482 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
483
484 {"3c905B Cyclone 10/100/BNC",
485 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
486 {"3c905B-FX Cyclone 100baseFx",
487 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
488 {"3c905C Tornado",
489 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
490 {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
491 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
492 {"3c980 Cyclone",
493 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
494
495 {"3c980C Python-T",
496 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
497 {"3cSOHO100-TX Hurricane",
498 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
499 {"3c555 Laptop Hurricane",
500 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
501 {"3c556 Laptop Tornado",
502 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
503 HAS_HWCKSM, 128, },
504 {"3c556B Laptop Hurricane",
505 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
506 WNO_XCVR_PWR|HAS_HWCKSM, 128, },
507
508 {"3c575 [Megahertz] 10/100 LAN CardBus",
509 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
510 {"3c575 Boomerang CardBus",
511 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
512 {"3CCFE575BT Cyclone CardBus",
513 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
514 INVERT_LED_PWR|HAS_HWCKSM, 128, },
515 {"3CCFE575CT Tornado CardBus",
516 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
517 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
518 {"3CCFE656 Cyclone CardBus",
519 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
520 INVERT_LED_PWR|HAS_HWCKSM, 128, },
521
522 {"3CCFEM656B Cyclone+Winmodem CardBus",
523 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
524 INVERT_LED_PWR|HAS_HWCKSM, 128, },
525 {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
526 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
527 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
528 {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
529 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
530 {"3c920 Tornado",
531 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
532 {"3c982 Hydra Dual Port A",
533 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
534
535 {"3c982 Hydra Dual Port B",
536 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
537 {"3c905B-T4",
538 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
539 {"3c920B-EMB-WNM Tornado",
540 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
541
542 {NULL,}, /* NULL terminated list. */
543};
544
545
546static struct pci_device_id vortex_pci_tbl[] = {
547 { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
548 { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
549 { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
550 { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
551 { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
552
553 { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
554 { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
555 { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
556 { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
557 { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
558
559 { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
560 { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
561 { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
562 { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
563 { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
564
565 { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
566 { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
567 { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
568 { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
569 { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
570 { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
571
572 { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
573 { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
574 { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
575 { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
576 { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
577
578 { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
579 { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
580 { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
581 { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
582 { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
583
584 { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
585 { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
586 { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
587 { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
588 { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
589
590 { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
591 { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
592
593 {0,} /* 0 terminated list. */
594};
595MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
596
597
598/* Operational definitions.
599 These are not used by other compilation units and thus are not
600 exported in a ".h" file.
601
602 First the windows. There are eight register windows, with the command
603 and status registers available in each.
604 */
John W. Linville62afe592005-11-07 00:58:02 -0800605#define EL3WINDOW(win_num) iowrite16(SelectWindow + (win_num), ioaddr + EL3_CMD)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606#define EL3_CMD 0x0e
607#define EL3_STATUS 0x0e
608
609/* The top five bits written to EL3_CMD are a command, the lower
610 11 bits are the parameter, if applicable.
611 Note that 11 parameters bits was fine for ethernet, but the new chip
612 can handle FDDI length frames (~4500 octets) and now parameters count
613 32-bit 'Dwords' rather than octets. */
614
615enum vortex_cmd {
616 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
617 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
618 UpStall = 6<<11, UpUnstall = (6<<11)+1,
619 DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
620 RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
621 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
622 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
623 SetTxThreshold = 18<<11, SetTxStart = 19<<11,
624 StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
625 StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
626
627/* The SetRxFilter command accepts the following classes: */
628enum RxFilter {
629 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
630
631/* Bits in the general status register. */
632enum vortex_status {
633 IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
634 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
635 IntReq = 0x0040, StatsFull = 0x0080,
636 DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
637 DMAInProgress = 1<<11, /* DMA controller is still busy.*/
638 CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
639};
640
641/* Register window 1 offsets, the window used in normal operation.
642 On the Vortex this window is always mapped at offsets 0x10-0x1f. */
643enum Window1 {
644 TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
645 RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
646 TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
647};
648enum Window0 {
649 Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
650 Wn0EepromData = 12, /* Window 0: EEPROM results register. */
651 IntrStatus=0x0E, /* Valid in all windows. */
652};
653enum Win0_EEPROM_bits {
654 EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
655 EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
656 EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
657};
658/* EEPROM locations. */
659enum eeprom_offset {
660 PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
661 EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
662 NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
663 DriverTune=13, Checksum=15};
664
665enum Window2 { /* Window 2. */
666 Wn2_ResetOptions=12,
667};
668enum Window3 { /* Window 3: MAC/config bits. */
669 Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8,
670};
671
672#define BFEXT(value, offset, bitcount) \
673 ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
674
675#define BFINS(lhs, rhs, offset, bitcount) \
676 (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \
677 (((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
678
679#define RAM_SIZE(v) BFEXT(v, 0, 3)
680#define RAM_WIDTH(v) BFEXT(v, 3, 1)
681#define RAM_SPEED(v) BFEXT(v, 4, 2)
682#define ROM_SIZE(v) BFEXT(v, 6, 2)
683#define RAM_SPLIT(v) BFEXT(v, 16, 2)
684#define XCVR(v) BFEXT(v, 20, 4)
685#define AUTOSELECT(v) BFEXT(v, 24, 1)
686
687enum Window4 { /* Window 4: Xcvr/media bits. */
688 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
689};
690enum Win4_Media_bits {
691 Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
692 Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
693 Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
694 Media_LnkBeat = 0x0800,
695};
696enum Window7 { /* Window 7: Bus Master control. */
697 Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6,
698 Wn7_MasterStatus = 12,
699};
700/* Boomerang bus master control registers. */
701enum MasterCtrl {
702 PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c,
703 TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38,
704};
705
706/* The Rx and Tx descriptor lists.
707 Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
708 alignment contraint on tx_ring[] and rx_ring[]. */
709#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
710#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
711struct boom_rx_desc {
712 u32 next; /* Last entry points to 0. */
713 s32 status;
714 u32 addr; /* Up to 63 addr/len pairs possible. */
715 s32 length; /* Set LAST_FRAG to indicate last pair. */
716};
717/* Values for the Rx status entry. */
718enum rx_desc_status {
719 RxDComplete=0x00008000, RxDError=0x4000,
720 /* See boomerang_rx() for actual error bits */
721 IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27,
722 IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31,
723};
724
725#ifdef MAX_SKB_FRAGS
726#define DO_ZEROCOPY 1
727#else
728#define DO_ZEROCOPY 0
729#endif
730
731struct boom_tx_desc {
732 u32 next; /* Last entry points to 0. */
733 s32 status; /* bits 0:12 length, others see below. */
734#if DO_ZEROCOPY
735 struct {
736 u32 addr;
737 s32 length;
738 } frag[1+MAX_SKB_FRAGS];
739#else
740 u32 addr;
741 s32 length;
742#endif
743};
744
745/* Values for the Tx status entry. */
746enum tx_desc_status {
747 CRCDisable=0x2000, TxDComplete=0x8000,
748 AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000,
749 TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */
750};
751
752/* Chip features we care about in vp->capabilities, read from the EEPROM. */
753enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 };
754
755struct vortex_extra_stats {
756 unsigned long tx_deferred;
757 unsigned long tx_multiple_collisions;
758 unsigned long rx_bad_ssd;
759};
760
761struct vortex_private {
762 /* The Rx and Tx rings should be quad-word-aligned. */
763 struct boom_rx_desc* rx_ring;
764 struct boom_tx_desc* tx_ring;
765 dma_addr_t rx_ring_dma;
766 dma_addr_t tx_ring_dma;
767 /* The addresses of transmit- and receive-in-place skbuffs. */
768 struct sk_buff* rx_skbuff[RX_RING_SIZE];
769 struct sk_buff* tx_skbuff[TX_RING_SIZE];
770 unsigned int cur_rx, cur_tx; /* The next free ring entry */
771 unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
772 struct net_device_stats stats; /* Generic stats */
773 struct vortex_extra_stats xstats; /* NIC-specific extra stats */
774 struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
775 dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
776
777 /* PCI configuration space information. */
778 struct device *gendev;
John W. Linville62afe592005-11-07 00:58:02 -0800779 void __iomem *ioaddr; /* IO address space */
780 void __iomem *cb_fn_base; /* CardBus function status addr space. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781
782 /* Some values here only for performance evaluation and path-coverage */
783 int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
784 int card_idx;
785
786 /* The remainder are related to chip state, mostly media selection. */
787 struct timer_list timer; /* Media selection timer. */
788 struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
789 int options; /* User-settable misc. driver options. */
790 unsigned int media_override:4, /* Passed-in media type. */
791 default_media:4, /* Read from the EEPROM/Wn3_Config. */
792 full_duplex:1, force_fd:1, autoselect:1,
793 bus_master:1, /* Vortex can only do a fragment bus-m. */
794 full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
795 flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
796 partner_flow_ctrl:1, /* Partner supports flow control */
797 has_nway:1,
798 enable_wol:1, /* Wake-on-LAN is enabled */
799 pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */
800 open:1,
801 medialock:1,
802 must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */
803 large_frames:1; /* accept large frames */
804 int drv_flags;
805 u16 status_enable;
806 u16 intr_enable;
807 u16 available_media; /* From Wn3_Options. */
808 u16 capabilities, info1, info2; /* Various, from EEPROM. */
809 u16 advertising; /* NWay media advertisement */
810 unsigned char phys[2]; /* MII device addresses. */
811 u16 deferred; /* Resend these interrupts when we
812 * bale from the ISR */
813 u16 io_size; /* Size of PCI region (for release_region) */
814 spinlock_t lock; /* Serialise access to device & its vortex_private */
815 struct mii_if_info mii; /* MII lib hooks/info */
816};
817
818#ifdef CONFIG_PCI
819#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
820#else
821#define DEVICE_PCI(dev) NULL
822#endif
823
824#define VORTEX_PCI(vp) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL)
825
826#ifdef CONFIG_EISA
827#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
828#else
829#define DEVICE_EISA(dev) NULL
830#endif
831
832#define VORTEX_EISA(vp) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL)
833
834/* The action to take with a media selection timer tick.
835 Note that we deviate from the 3Com order by checking 10base2 before AUI.
836 */
837enum xcvr_types {
838 XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
839 XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
840};
841
842static struct media_table {
843 char *name;
844 unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
845 mask:8, /* The transceiver-present bit in Wn3_Config.*/
846 next:8; /* The media type to try next. */
847 int wait; /* Time before we check media status. */
848} media_tbl[] = {
849 { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
850 { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
851 { "undefined", 0, 0x80, XCVR_10baseT, 10000},
852 { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
853 { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
854 { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
855 { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
856 { "undefined", 0, 0x01, XCVR_10baseT, 10000},
857 { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
858 { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
859 { "Default", 0, 0xFF, XCVR_10baseT, 10000},
860};
861
862static struct {
863 const char str[ETH_GSTRING_LEN];
864} ethtool_stats_keys[] = {
865 { "tx_deferred" },
866 { "tx_multiple_collisions" },
867 { "rx_bad_ssd" },
868};
869
870/* number of ETHTOOL_GSTATS u64's */
871#define VORTEX_NUM_STATS 3
872
John W. Linville62afe592005-11-07 00:58:02 -0800873static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 int chip_idx, int card_idx);
875static void vortex_up(struct net_device *dev);
876static void vortex_down(struct net_device *dev, int final);
877static int vortex_open(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800878static void mdio_sync(void __iomem *ioaddr, int bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879static int mdio_read(struct net_device *dev, int phy_id, int location);
880static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
881static void vortex_timer(unsigned long arg);
882static void rx_oom_timer(unsigned long arg);
883static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev);
884static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev);
885static int vortex_rx(struct net_device *dev);
886static int boomerang_rx(struct net_device *dev);
887static irqreturn_t vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs);
888static irqreturn_t boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs);
889static int vortex_close(struct net_device *dev);
890static void dump_tx_ring(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800891static void update_stats(void __iomem *ioaddr, struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892static struct net_device_stats *vortex_get_stats(struct net_device *dev);
893static void set_rx_mode(struct net_device *dev);
894#ifdef CONFIG_PCI
895static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
896#endif
897static void vortex_tx_timeout(struct net_device *dev);
898static void acpi_set_WOL(struct net_device *dev);
899static struct ethtool_ops vortex_ethtool_ops;
900static void set_8021q_mode(struct net_device *dev, int enable);
901
902
903/* 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
906static int options[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1,};
907static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
908static int hw_checksums[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
909static int flow_ctrl[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
910static int enable_wol[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
911static int global_options = -1;
912static int global_full_duplex = -1;
913static int global_enable_wol = -1;
914
915/* #define dev_alloc_skb dev_alloc_skb_debug */
916
917/* 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);
938MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
939MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
940MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
941MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
942MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if options is unset");
943MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
944MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
945MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
946MODULE_PARM_DESC(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if options is unset");
947MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
948MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
949MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
950MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
951MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
952MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
953
954#ifdef CONFIG_NET_POLL_CONTROLLER
955static void poll_vortex(struct net_device *dev)
956{
957 struct vortex_private *vp = netdev_priv(dev);
958 unsigned long flags;
959 local_save_flags(flags);
960 local_irq_disable();
961 (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev,NULL);
962 local_irq_restore(flags);
963}
964#endif
965
966#ifdef CONFIG_PM
967
968static int vortex_suspend (struct pci_dev *pdev, pm_message_t state)
969{
970 struct net_device *dev = pci_get_drvdata(pdev);
971
972 if (dev && dev->priv) {
973 if (netif_running(dev)) {
974 netif_device_detach(dev);
975 vortex_down(dev, 1);
976 }
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700977 pci_save_state(pdev);
978 pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
979 free_irq(dev->irq, dev);
980 pci_disable_device(pdev);
981 pci_set_power_state(pdev, pci_choose_state(pdev, state));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 }
983 return 0;
984}
985
986static int vortex_resume (struct pci_dev *pdev)
987{
988 struct net_device *dev = pci_get_drvdata(pdev);
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700989 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700991 if (dev && vp) {
992 pci_set_power_state(pdev, PCI_D0);
993 pci_restore_state(pdev);
994 pci_enable_device(pdev);
995 pci_set_master(pdev);
996 if (request_irq(dev->irq, vp->full_bus_master_rx ?
997 &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev)) {
998 printk(KERN_WARNING "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
999 pci_disable_device(pdev);
1000 return -EBUSY;
1001 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002 if (netif_running(dev)) {
1003 vortex_up(dev);
1004 netif_device_attach(dev);
1005 }
1006 }
1007 return 0;
1008}
1009
1010#endif /* CONFIG_PM */
1011
1012#ifdef CONFIG_EISA
1013static struct eisa_device_id vortex_eisa_ids[] = {
1014 { "TCM5920", CH_3C592 },
1015 { "TCM5970", CH_3C597 },
1016 { "" }
1017};
1018
1019static int vortex_eisa_probe (struct device *device);
1020static int vortex_eisa_remove (struct device *device);
1021
1022static struct eisa_driver vortex_eisa_driver = {
1023 .id_table = vortex_eisa_ids,
1024 .driver = {
1025 .name = "3c59x",
1026 .probe = vortex_eisa_probe,
1027 .remove = vortex_eisa_remove
1028 }
1029};
1030
1031static int vortex_eisa_probe (struct device *device)
1032{
John W. Linville62afe592005-11-07 00:58:02 -08001033 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 struct eisa_device *edev;
1035
1036 edev = to_eisa_device (device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037
John W. Linville62afe592005-11-07 00:58:02 -08001038 if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 return -EBUSY;
1040
John W. Linville62afe592005-11-07 00:58:02 -08001041 ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
1042
1043 if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 edev->id.driver_data, vortex_cards_found)) {
John W. Linville62afe592005-11-07 00:58:02 -08001045 release_region (edev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046 return -ENODEV;
1047 }
1048
1049 vortex_cards_found++;
1050
1051 return 0;
1052}
1053
1054static int vortex_eisa_remove (struct device *device)
1055{
1056 struct eisa_device *edev;
1057 struct net_device *dev;
1058 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08001059 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060
1061 edev = to_eisa_device (device);
1062 dev = eisa_get_drvdata (edev);
1063
1064 if (!dev) {
1065 printk("vortex_eisa_remove called for Compaq device!\n");
1066 BUG();
1067 }
1068
1069 vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001070 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
1072 unregister_netdev (dev);
John W. Linville62afe592005-11-07 00:58:02 -08001073 iowrite16 (TotalReset|0x14, ioaddr + EL3_CMD);
1074 release_region (dev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075
1076 free_netdev (dev);
1077 return 0;
1078}
1079#endif
1080
1081/* returns count found (>= 0), or negative on error */
1082static int __init vortex_eisa_init (void)
1083{
1084 int eisa_found = 0;
1085 int orig_cards_found = vortex_cards_found;
1086
1087#ifdef CONFIG_EISA
1088 if (eisa_driver_register (&vortex_eisa_driver) >= 0) {
1089 /* Because of the way EISA bus is probed, we cannot assume
1090 * any device have been found when we exit from
1091 * eisa_driver_register (the bus root driver may not be
1092 * initialized yet). So we blindly assume something was
1093 * found, and let the sysfs magic happend... */
1094
1095 eisa_found = 1;
1096 }
1097#endif
1098
1099 /* Special code to work-around the Compaq PCI BIOS32 problem. */
1100 if (compaq_ioaddr) {
John W. Linville62afe592005-11-07 00:58:02 -08001101 vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
1102 compaq_irq, compaq_device_id, vortex_cards_found++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103 }
1104
1105 return vortex_cards_found - orig_cards_found + eisa_found;
1106}
1107
1108/* returns count (>= 0), or negative on error */
1109static int __devinit vortex_init_one (struct pci_dev *pdev,
1110 const struct pci_device_id *ent)
1111{
1112 int rc;
1113
1114 /* wake up and enable device */
1115 rc = pci_enable_device (pdev);
1116 if (rc < 0)
1117 goto out;
1118
John W. Linville62afe592005-11-07 00:58:02 -08001119 rc = vortex_probe1 (&pdev->dev, pci_iomap(pdev, 0, 0),
1120 pdev->irq, ent->driver_data, vortex_cards_found);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121 if (rc < 0) {
1122 pci_disable_device (pdev);
1123 goto out;
1124 }
1125
1126 vortex_cards_found++;
1127
1128out:
1129 return rc;
1130}
1131
1132/*
1133 * Start up the PCI/EISA device which is described by *gendev.
1134 * Return 0 on success.
1135 *
1136 * NOTE: pdev can be NULL, for the case of a Compaq device
1137 */
1138static int __devinit vortex_probe1(struct device *gendev,
John W. Linville62afe592005-11-07 00:58:02 -08001139 void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140 int chip_idx, int card_idx)
1141{
1142 struct vortex_private *vp;
1143 int option;
1144 unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
1145 int i, step;
1146 struct net_device *dev;
1147 static int printed_version;
1148 int retval, print_info;
1149 struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
1150 char *print_name = "3c59x";
1151 struct pci_dev *pdev = NULL;
1152 struct eisa_device *edev = NULL;
1153
1154 if (!printed_version) {
1155 printk (version);
1156 printed_version = 1;
1157 }
1158
1159 if (gendev) {
1160 if ((pdev = DEVICE_PCI(gendev))) {
1161 print_name = pci_name(pdev);
1162 }
1163
1164 if ((edev = DEVICE_EISA(gendev))) {
1165 print_name = edev->dev.bus_id;
1166 }
1167 }
1168
1169 dev = alloc_etherdev(sizeof(*vp));
1170 retval = -ENOMEM;
1171 if (!dev) {
1172 printk (KERN_ERR PFX "unable to allocate etherdev, aborting\n");
1173 goto out;
1174 }
1175 SET_MODULE_OWNER(dev);
1176 SET_NETDEV_DEV(dev, gendev);
1177 vp = netdev_priv(dev);
1178
1179 option = global_options;
1180
1181 /* The lower four bits are the media type. */
1182 if (dev->mem_start) {
1183 /*
1184 * The 'options' param is passed in as the third arg to the
1185 * LILO 'ether=' argument for non-modular use
1186 */
1187 option = dev->mem_start;
1188 }
1189 else if (card_idx < MAX_UNITS) {
1190 if (options[card_idx] >= 0)
1191 option = options[card_idx];
1192 }
1193
1194 if (option > 0) {
1195 if (option & 0x8000)
1196 vortex_debug = 7;
1197 if (option & 0x4000)
1198 vortex_debug = 2;
1199 if (option & 0x0400)
1200 vp->enable_wol = 1;
1201 }
1202
1203 print_info = (vortex_debug > 1);
1204 if (print_info)
1205 printk (KERN_INFO "See Documentation/networking/vortex.txt\n");
1206
John W. Linville62afe592005-11-07 00:58:02 -08001207 printk(KERN_INFO "%s: 3Com %s %s at %p. Vers " DRV_VERSION "\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 print_name,
1209 pdev ? "PCI" : "EISA",
1210 vci->name,
1211 ioaddr);
1212
John W. Linville62afe592005-11-07 00:58:02 -08001213 dev->base_addr = (unsigned long)ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214 dev->irq = irq;
1215 dev->mtu = mtu;
John W. Linville62afe592005-11-07 00:58:02 -08001216 vp->ioaddr = ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 vp->large_frames = mtu > 1500;
1218 vp->drv_flags = vci->drv_flags;
1219 vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
1220 vp->io_size = vci->io_size;
1221 vp->card_idx = card_idx;
1222
1223 /* module list only for Compaq device */
1224 if (gendev == NULL) {
1225 compaq_net_device = dev;
1226 }
1227
1228 /* PCI-only startup logic */
1229 if (pdev) {
1230 /* EISA resources already marked, so only PCI needs to do this here */
1231 /* Ignore return value, because Cardbus drivers already allocate for us */
John W. Linville62afe592005-11-07 00:58:02 -08001232 if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233 vp->must_free_region = 1;
1234
1235 /* enable bus-mastering if necessary */
1236 if (vci->flags & PCI_USES_MASTER)
1237 pci_set_master (pdev);
1238
1239 if (vci->drv_flags & IS_VORTEX) {
1240 u8 pci_latency;
1241 u8 new_latency = 248;
1242
1243 /* Check the PCI latency value. On the 3c590 series the latency timer
1244 must be set to the maximum value to avoid data corruption that occurs
1245 when the timer expires during a transfer. This bug exists the Vortex
1246 chip only. */
1247 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
1248 if (pci_latency < new_latency) {
1249 printk(KERN_INFO "%s: Overriding PCI latency"
1250 " timer (CFLT) setting of %d, new value is %d.\n",
1251 print_name, pci_latency, new_latency);
1252 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
1253 }
1254 }
1255 }
1256
1257 spin_lock_init(&vp->lock);
1258 vp->gendev = gendev;
1259 vp->mii.dev = dev;
1260 vp->mii.mdio_read = mdio_read;
1261 vp->mii.mdio_write = mdio_write;
1262 vp->mii.phy_id_mask = 0x1f;
1263 vp->mii.reg_num_mask = 0x1f;
1264
1265 /* Makes sure rings are at least 16 byte aligned. */
1266 vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
1267 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1268 &vp->rx_ring_dma);
1269 retval = -ENOMEM;
1270 if (vp->rx_ring == 0)
1271 goto free_region;
1272
1273 vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
1274 vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
1275
1276 /* if we are a PCI driver, we store info in pdev->driver_data
1277 * instead of a module list */
1278 if (pdev)
1279 pci_set_drvdata(pdev, dev);
1280 if (edev)
1281 eisa_set_drvdata (edev, dev);
1282
1283 vp->media_override = 7;
1284 if (option >= 0) {
1285 vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
1286 if (vp->media_override != 7)
1287 vp->medialock = 1;
1288 vp->full_duplex = (option & 0x200) ? 1 : 0;
1289 vp->bus_master = (option & 16) ? 1 : 0;
1290 }
1291
1292 if (global_full_duplex > 0)
1293 vp->full_duplex = 1;
1294 if (global_enable_wol > 0)
1295 vp->enable_wol = 1;
1296
1297 if (card_idx < MAX_UNITS) {
1298 if (full_duplex[card_idx] > 0)
1299 vp->full_duplex = 1;
1300 if (flow_ctrl[card_idx] > 0)
1301 vp->flow_ctrl = 1;
1302 if (enable_wol[card_idx] > 0)
1303 vp->enable_wol = 1;
1304 }
1305
1306 vp->force_fd = vp->full_duplex;
1307 vp->options = option;
1308 /* Read the station address from the EEPROM. */
1309 EL3WINDOW(0);
1310 {
1311 int base;
1312
1313 if (vci->drv_flags & EEPROM_8BIT)
1314 base = 0x230;
1315 else if (vci->drv_flags & EEPROM_OFFSET)
1316 base = EEPROM_Read + 0x30;
1317 else
1318 base = EEPROM_Read;
1319
1320 for (i = 0; i < 0x40; i++) {
1321 int timer;
John W. Linville62afe592005-11-07 00:58:02 -08001322 iowrite16(base + i, ioaddr + Wn0EepromCmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 /* Pause for at least 162 us. for the read to take place. */
1324 for (timer = 10; timer >= 0; timer--) {
1325 udelay(162);
John W. Linville62afe592005-11-07 00:58:02 -08001326 if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 break;
1328 }
John W. Linville62afe592005-11-07 00:58:02 -08001329 eeprom[i] = ioread16(ioaddr + Wn0EepromData);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 }
1331 }
1332 for (i = 0; i < 0x18; i++)
1333 checksum ^= eeprom[i];
1334 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1335 if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
1336 while (i < 0x21)
1337 checksum ^= eeprom[i++];
1338 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1339 }
1340 if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO))
1341 printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
1342 for (i = 0; i < 3; i++)
1343 ((u16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
1344 if (print_info) {
1345 for (i = 0; i < 6; i++)
1346 printk("%c%2.2x", i ? ':' : ' ', dev->dev_addr[i]);
1347 }
1348 /* Unfortunately an all zero eeprom passes the checksum and this
1349 gets found in the wild in failure cases. Crypto is hard 8) */
1350 if (!is_valid_ether_addr(dev->dev_addr)) {
1351 retval = -EINVAL;
1352 printk(KERN_ERR "*** EEPROM MAC address is invalid.\n");
1353 goto free_ring; /* With every pack */
1354 }
1355 EL3WINDOW(2);
1356 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001357 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358
1359#ifdef __sparc__
1360 if (print_info)
1361 printk(", IRQ %s\n", __irq_itoa(dev->irq));
1362#else
1363 if (print_info)
1364 printk(", IRQ %d\n", dev->irq);
1365 /* Tell them about an invalid IRQ. */
1366 if (dev->irq <= 0 || dev->irq >= NR_IRQS)
1367 printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***\n",
1368 dev->irq);
1369#endif
1370
1371 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001372 step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373 if (print_info) {
1374 printk(KERN_INFO " product code %02x%02x rev %02x.%d date %02d-"
1375 "%02d-%02d\n", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
1376 step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
1377 }
1378
1379
1380 if (pdev && vci->drv_flags & HAS_CB_FNS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 unsigned short n;
1382
John W. Linville62afe592005-11-07 00:58:02 -08001383 vp->cb_fn_base = pci_iomap(pdev, 2, 0);
1384 if (!vp->cb_fn_base) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385 retval = -ENOMEM;
John W. Linville62afe592005-11-07 00:58:02 -08001386 goto free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 }
John W. Linville62afe592005-11-07 00:58:02 -08001388
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 if (print_info) {
1390 printk(KERN_INFO "%s: CardBus functions mapped %8.8lx->%p\n",
John W. Linville62afe592005-11-07 00:58:02 -08001391 print_name, pci_resource_start(pdev, 2),
1392 vp->cb_fn_base);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 }
1394 EL3WINDOW(2);
1395
John W. Linville62afe592005-11-07 00:58:02 -08001396 n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397 if (vp->drv_flags & INVERT_LED_PWR)
1398 n |= 0x10;
1399 if (vp->drv_flags & INVERT_MII_PWR)
1400 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001401 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 if (vp->drv_flags & WNO_XCVR_PWR) {
1403 EL3WINDOW(0);
John W. Linville62afe592005-11-07 00:58:02 -08001404 iowrite16(0x0800, ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405 }
1406 }
1407
1408 /* Extract our information from the EEPROM data. */
1409 vp->info1 = eeprom[13];
1410 vp->info2 = eeprom[15];
1411 vp->capabilities = eeprom[16];
1412
1413 if (vp->info1 & 0x8000) {
1414 vp->full_duplex = 1;
1415 if (print_info)
1416 printk(KERN_INFO "Full duplex capable\n");
1417 }
1418
1419 {
1420 static const char * ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
1421 unsigned int config;
1422 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001423 vp->available_media = ioread16(ioaddr + Wn3_Options);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
1425 vp->available_media = 0x40;
John W. Linville62afe592005-11-07 00:58:02 -08001426 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 if (print_info) {
1428 printk(KERN_DEBUG " Internal config register is %4.4x, "
John W. Linville62afe592005-11-07 00:58:02 -08001429 "transceivers %#x.\n", config, ioread16(ioaddr + Wn3_Options));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
1431 8 << RAM_SIZE(config),
1432 RAM_WIDTH(config) ? "word" : "byte",
1433 ram_split[RAM_SPLIT(config)],
1434 AUTOSELECT(config) ? "autoselect/" : "",
1435 XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
1436 media_tbl[XCVR(config)].name);
1437 }
1438 vp->default_media = XCVR(config);
1439 if (vp->default_media == XCVR_NWAY)
1440 vp->has_nway = 1;
1441 vp->autoselect = AUTOSELECT(config);
1442 }
1443
1444 if (vp->media_override != 7) {
1445 printk(KERN_INFO "%s: Media override to transceiver type %d (%s).\n",
1446 print_name, vp->media_override,
1447 media_tbl[vp->media_override].name);
1448 dev->if_port = vp->media_override;
1449 } else
1450 dev->if_port = vp->default_media;
1451
1452 if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
1453 dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1454 int phy, phy_idx = 0;
1455 EL3WINDOW(4);
1456 mii_preamble_required++;
1457 if (vp->drv_flags & EXTRA_PREAMBLE)
1458 mii_preamble_required++;
1459 mdio_sync(ioaddr, 32);
Neil Horman106427e2005-11-07 00:58:03 -08001460 mdio_read(dev, 24, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
1462 int mii_status, phyx;
1463
1464 /*
1465 * For the 3c905CX we look at index 24 first, because it bogusly
1466 * reports an external PHY at all indices
1467 */
1468 if (phy == 0)
1469 phyx = 24;
1470 else if (phy <= 24)
1471 phyx = phy - 1;
1472 else
1473 phyx = phy;
Neil Horman106427e2005-11-07 00:58:03 -08001474 mii_status = mdio_read(dev, phyx, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 if (mii_status && mii_status != 0xffff) {
1476 vp->phys[phy_idx++] = phyx;
1477 if (print_info) {
1478 printk(KERN_INFO " MII transceiver found at address %d,"
1479 " status %4x.\n", phyx, mii_status);
1480 }
1481 if ((mii_status & 0x0040) == 0)
1482 mii_preamble_required++;
1483 }
1484 }
1485 mii_preamble_required--;
1486 if (phy_idx == 0) {
1487 printk(KERN_WARNING" ***WARNING*** No MII transceivers found!\n");
1488 vp->phys[0] = 24;
1489 } else {
Neil Horman106427e2005-11-07 00:58:03 -08001490 vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 if (vp->full_duplex) {
1492 /* Only advertise the FD media types. */
1493 vp->advertising &= ~0x02A0;
1494 mdio_write(dev, vp->phys[0], 4, vp->advertising);
1495 }
1496 }
1497 vp->mii.phy_id = vp->phys[0];
1498 }
1499
1500 if (vp->capabilities & CapBusMaster) {
1501 vp->full_bus_master_tx = 1;
1502 if (print_info) {
1503 printk(KERN_INFO " Enabling bus-master transmits and %s receives.\n",
1504 (vp->info2 & 1) ? "early" : "whole-frame" );
1505 }
1506 vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
1507 vp->bus_master = 0; /* AKPM: vortex only */
1508 }
1509
1510 /* The 3c59x-specific entries in the device structure. */
1511 dev->open = vortex_open;
1512 if (vp->full_bus_master_tx) {
1513 dev->hard_start_xmit = boomerang_start_xmit;
1514 /* Actually, it still should work with iommu. */
1515 dev->features |= NETIF_F_SG;
1516 if (((hw_checksums[card_idx] == -1) && (vp->drv_flags & HAS_HWCKSM)) ||
1517 (hw_checksums[card_idx] == 1)) {
1518 dev->features |= NETIF_F_IP_CSUM;
1519 }
1520 } else {
1521 dev->hard_start_xmit = vortex_start_xmit;
1522 }
1523
1524 if (print_info) {
1525 printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabled\n",
1526 print_name,
1527 (dev->features & NETIF_F_SG) ? "en":"dis",
1528 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1529 }
1530
1531 dev->stop = vortex_close;
1532 dev->get_stats = vortex_get_stats;
1533#ifdef CONFIG_PCI
1534 dev->do_ioctl = vortex_ioctl;
1535#endif
1536 dev->ethtool_ops = &vortex_ethtool_ops;
1537 dev->set_multicast_list = set_rx_mode;
1538 dev->tx_timeout = vortex_tx_timeout;
1539 dev->watchdog_timeo = (watchdog * HZ) / 1000;
1540#ifdef CONFIG_NET_POLL_CONTROLLER
1541 dev->poll_controller = poll_vortex;
1542#endif
1543 if (pdev) {
1544 vp->pm_state_valid = 1;
1545 pci_save_state(VORTEX_PCI(vp));
1546 acpi_set_WOL(dev);
1547 }
1548 retval = register_netdev(dev);
1549 if (retval == 0)
1550 return 0;
1551
1552free_ring:
1553 pci_free_consistent(pdev,
1554 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1555 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1556 vp->rx_ring,
1557 vp->rx_ring_dma);
1558free_region:
1559 if (vp->must_free_region)
John W. Linville62afe592005-11-07 00:58:02 -08001560 release_region(dev->base_addr, vci->io_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561 free_netdev(dev);
1562 printk(KERN_ERR PFX "vortex_probe1 fails. Returns %d\n", retval);
1563out:
1564 return retval;
1565}
1566
1567static void
1568issue_and_wait(struct net_device *dev, int cmd)
1569{
John W. Linville62afe592005-11-07 00:58:02 -08001570 struct vortex_private *vp = netdev_priv(dev);
1571 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572 int i;
1573
John W. Linville62afe592005-11-07 00:58:02 -08001574 iowrite16(cmd, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575 for (i = 0; i < 2000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001576 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577 return;
1578 }
1579
1580 /* OK, that didn't work. Do it the slow way. One second */
1581 for (i = 0; i < 100000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001582 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001583 if (vortex_debug > 1)
1584 printk(KERN_INFO "%s: command 0x%04x took %d usecs\n",
1585 dev->name, cmd, i * 10);
1586 return;
1587 }
1588 udelay(10);
1589 }
1590 printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001591 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592}
1593
1594static void
1595vortex_up(struct net_device *dev)
1596{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001598 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599 unsigned int config;
1600 int i;
1601
1602 if (VORTEX_PCI(vp)) {
1603 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001604 if (vp->pm_state_valid)
1605 pci_restore_state(VORTEX_PCI(vp));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606 pci_enable_device(VORTEX_PCI(vp));
1607 }
1608
1609 /* Before initializing select the active media port. */
1610 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001611 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001612
1613 if (vp->media_override != 7) {
1614 printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
1615 dev->name, vp->media_override,
1616 media_tbl[vp->media_override].name);
1617 dev->if_port = vp->media_override;
1618 } else if (vp->autoselect) {
1619 if (vp->has_nway) {
1620 if (vortex_debug > 1)
1621 printk(KERN_INFO "%s: using NWAY device table, not %d\n",
1622 dev->name, dev->if_port);
1623 dev->if_port = XCVR_NWAY;
1624 } else {
1625 /* Find first available media type, starting with 100baseTx. */
1626 dev->if_port = XCVR_100baseTx;
1627 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1628 dev->if_port = media_tbl[dev->if_port].next;
1629 if (vortex_debug > 1)
1630 printk(KERN_INFO "%s: first available media type: %s\n",
1631 dev->name, media_tbl[dev->if_port].name);
1632 }
1633 } else {
1634 dev->if_port = vp->default_media;
1635 if (vortex_debug > 1)
1636 printk(KERN_INFO "%s: using default media %s\n",
1637 dev->name, media_tbl[dev->if_port].name);
1638 }
1639
1640 init_timer(&vp->timer);
1641 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1642 vp->timer.data = (unsigned long)dev;
1643 vp->timer.function = vortex_timer; /* timer handler */
1644 add_timer(&vp->timer);
1645
1646 init_timer(&vp->rx_oom_timer);
1647 vp->rx_oom_timer.data = (unsigned long)dev;
1648 vp->rx_oom_timer.function = rx_oom_timer;
1649
1650 if (vortex_debug > 1)
1651 printk(KERN_DEBUG "%s: Initial media type %s.\n",
1652 dev->name, media_tbl[dev->if_port].name);
1653
1654 vp->full_duplex = vp->force_fd;
1655 config = BFINS(config, dev->if_port, 20, 4);
1656 if (vortex_debug > 6)
1657 printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
John W. Linville62afe592005-11-07 00:58:02 -08001658 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659
1660 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1661 int mii_reg1, mii_reg5;
1662 EL3WINDOW(4);
1663 /* Read BMSR (reg1) only to clear old status. */
Neil Horman106427e2005-11-07 00:58:03 -08001664 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1665 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666 if (mii_reg5 == 0xffff || mii_reg5 == 0x0000) {
1667 netif_carrier_off(dev); /* No MII device or no link partner report */
1668 } else {
1669 mii_reg5 &= vp->advertising;
1670 if ((mii_reg5 & 0x0100) != 0 /* 100baseTx-FD */
1671 || (mii_reg5 & 0x00C0) == 0x0040) /* 10T-FD, but not 100-HD */
1672 vp->full_duplex = 1;
1673 netif_carrier_on(dev);
1674 }
1675 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
1676 if (vortex_debug > 1)
1677 printk(KERN_INFO "%s: MII #%d status %4.4x, link partner capability %4.4x,"
1678 " info1 %04x, setting %s-duplex.\n",
1679 dev->name, vp->phys[0],
1680 mii_reg1, mii_reg5,
1681 vp->info1, ((vp->info1 & 0x8000) || vp->full_duplex) ? "full" : "half");
1682 EL3WINDOW(3);
1683 }
1684
1685 /* Set the full-duplex bit. */
John W. Linville62afe592005-11-07 00:58:02 -08001686 iowrite16( ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687 (vp->large_frames ? 0x40 : 0) |
1688 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0),
1689 ioaddr + Wn3_MAC_Ctrl);
1690
1691 if (vortex_debug > 1) {
1692 printk(KERN_DEBUG "%s: vortex_up() InternalConfig %8.8x.\n",
1693 dev->name, config);
1694 }
1695
1696 issue_and_wait(dev, TxReset);
1697 /*
1698 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1699 */
1700 issue_and_wait(dev, RxReset|0x04);
1701
John W. Linville62afe592005-11-07 00:58:02 -08001702 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001703
1704 if (vortex_debug > 1) {
1705 EL3WINDOW(4);
1706 printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001707 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001708 }
1709
1710 /* Set the station address and mask in window 2 each time opened. */
1711 EL3WINDOW(2);
1712 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001713 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714 for (; i < 12; i+=2)
John W. Linville62afe592005-11-07 00:58:02 -08001715 iowrite16(0, ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716
1717 if (vp->cb_fn_base) {
John W. Linville62afe592005-11-07 00:58:02 -08001718 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 if (vp->drv_flags & INVERT_LED_PWR)
1720 n |= 0x10;
1721 if (vp->drv_flags & INVERT_MII_PWR)
1722 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001723 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 }
1725
1726 if (dev->if_port == XCVR_10base2)
1727 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001728 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 if (dev->if_port != XCVR_NWAY) {
1730 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001731 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1733 }
1734
1735 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001736 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737 EL3WINDOW(6);
1738 for (i = 0; i < 10; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001739 ioread8(ioaddr + i);
1740 ioread16(ioaddr + 10);
1741 ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742 /* New: On the Vortex we must also clear the BadSSD counter. */
1743 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001744 ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 /* ..and on the Boomerang we enable the extra statistics bits. */
John W. Linville62afe592005-11-07 00:58:02 -08001746 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747
1748 /* Switch to register set 7 for normal use. */
1749 EL3WINDOW(7);
1750
1751 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1752 vp->cur_rx = vp->dirty_rx = 0;
1753 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001754 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1755 iowrite32(0x0020, ioaddr + PktStatus);
1756 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 }
1758 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1759 vp->cur_tx = vp->dirty_tx = 0;
1760 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001761 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762 /* Clear the Rx, Tx rings. */
1763 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1764 vp->rx_ring[i].status = 0;
1765 for (i = 0; i < TX_RING_SIZE; i++)
1766 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001767 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 }
1769 /* Set receiver mode: presumably accept b-case and phys addr only. */
1770 set_rx_mode(dev);
1771 /* enable 802.1q tagged frames */
1772 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001773 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774
1775// issue_and_wait(dev, SetTxStart|0x07ff);
John W. Linville62afe592005-11-07 00:58:02 -08001776 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1777 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 /* Allow status bits to be seen. */
1779 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1780 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1781 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1782 (vp->bus_master ? DMADone : 0);
1783 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1784 (vp->full_bus_master_rx ? 0 : RxComplete) |
1785 StatsFull | HostError | TxComplete | IntReq
1786 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001787 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001789 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001791 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001793 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 netif_start_queue (dev);
1795}
1796
1797static int
1798vortex_open(struct net_device *dev)
1799{
1800 struct vortex_private *vp = netdev_priv(dev);
1801 int i;
1802 int retval;
1803
1804 /* Use the now-standard shared IRQ implementation. */
1805 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
1806 &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev))) {
1807 printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
1808 goto out;
1809 }
1810
1811 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1812 if (vortex_debug > 2)
1813 printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
1814 for (i = 0; i < RX_RING_SIZE; i++) {
1815 struct sk_buff *skb;
1816 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1817 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1818 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
1819 skb = dev_alloc_skb(PKT_BUF_SZ);
1820 vp->rx_skbuff[i] = skb;
1821 if (skb == NULL)
1822 break; /* Bad news! */
1823 skb->dev = dev; /* Mark as being used by this device. */
1824 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001825 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 -07001826 }
1827 if (i != RX_RING_SIZE) {
1828 int j;
1829 printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
1830 for (j = 0; j < i; j++) {
1831 if (vp->rx_skbuff[j]) {
1832 dev_kfree_skb(vp->rx_skbuff[j]);
1833 vp->rx_skbuff[j] = NULL;
1834 }
1835 }
1836 retval = -ENOMEM;
1837 goto out_free_irq;
1838 }
1839 /* Wrap the ring. */
1840 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1841 }
1842
1843 vortex_up(dev);
1844 return 0;
1845
1846out_free_irq:
1847 free_irq(dev->irq, dev);
1848out:
1849 if (vortex_debug > 1)
1850 printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval);
1851 return retval;
1852}
1853
1854static void
1855vortex_timer(unsigned long data)
1856{
1857 struct net_device *dev = (struct net_device *)data;
1858 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001859 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001860 int next_tick = 60*HZ;
1861 int ok = 0;
1862 int media_status, mii_status, old_window;
1863
1864 if (vortex_debug > 2) {
1865 printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
1866 dev->name, media_tbl[dev->if_port].name);
1867 printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
1868 }
1869
1870 if (vp->medialock)
1871 goto leave_media_alone;
1872 disable_irq(dev->irq);
John W. Linville62afe592005-11-07 00:58:02 -08001873 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001875 media_status = ioread16(ioaddr + Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876 switch (dev->if_port) {
1877 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1878 if (media_status & Media_LnkBeat) {
1879 netif_carrier_on(dev);
1880 ok = 1;
1881 if (vortex_debug > 1)
1882 printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
1883 dev->name, media_tbl[dev->if_port].name, media_status);
1884 } else {
1885 netif_carrier_off(dev);
1886 if (vortex_debug > 1) {
1887 printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n",
1888 dev->name, media_tbl[dev->if_port].name, media_status);
1889 }
1890 }
1891 break;
1892 case XCVR_MII: case XCVR_NWAY:
1893 {
1894 spin_lock_bh(&vp->lock);
Neil Horman106427e2005-11-07 00:58:03 -08001895 mii_status = mdio_read(dev, vp->phys[0], MII_BMSR);
Tommy Christensend9e46de2005-11-07 00:58:04 -08001896 if (!(mii_status & BMSR_LSTATUS)) {
1897 /* Re-read to get actual link status */
1898 mii_status = mdio_read(dev, vp->phys[0], MII_BMSR);
1899 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900 ok = 1;
1901 if (vortex_debug > 2)
1902 printk(KERN_DEBUG "%s: MII transceiver has status %4.4x.\n",
1903 dev->name, mii_status);
1904 if (mii_status & BMSR_LSTATUS) {
Neil Horman106427e2005-11-07 00:58:03 -08001905 int mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906 if (! vp->force_fd && mii_reg5 != 0xffff) {
1907 int duplex;
1908
1909 mii_reg5 &= vp->advertising;
1910 duplex = (mii_reg5&0x0100) || (mii_reg5 & 0x01C0) == 0x0040;
1911 if (vp->full_duplex != duplex) {
1912 vp->full_duplex = duplex;
1913 printk(KERN_INFO "%s: Setting %s-duplex based on MII "
1914 "#%d link partner capability of %4.4x.\n",
1915 dev->name, vp->full_duplex ? "full" : "half",
1916 vp->phys[0], mii_reg5);
1917 /* Set the full-duplex bit. */
1918 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001919 iowrite16( (vp->full_duplex ? 0x20 : 0) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920 (vp->large_frames ? 0x40 : 0) |
1921 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0),
1922 ioaddr + Wn3_MAC_Ctrl);
1923 if (vortex_debug > 1)
1924 printk(KERN_DEBUG "Setting duplex in Wn3_MAC_Ctrl\n");
1925 /* AKPM: bug: should reset Tx and Rx after setting Duplex. Page 180 */
1926 }
1927 }
1928 netif_carrier_on(dev);
1929 } else {
1930 netif_carrier_off(dev);
1931 }
1932 spin_unlock_bh(&vp->lock);
1933 }
1934 break;
1935 default: /* Other media types handled by Tx timeouts. */
1936 if (vortex_debug > 1)
1937 printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n",
1938 dev->name, media_tbl[dev->if_port].name, media_status);
1939 ok = 1;
1940 }
1941 if ( ! ok) {
1942 unsigned int config;
1943
1944 do {
1945 dev->if_port = media_tbl[dev->if_port].next;
1946 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1947 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1948 dev->if_port = vp->default_media;
1949 if (vortex_debug > 1)
1950 printk(KERN_DEBUG "%s: Media selection failing, using default "
1951 "%s port.\n",
1952 dev->name, media_tbl[dev->if_port].name);
1953 } else {
1954 if (vortex_debug > 1)
1955 printk(KERN_DEBUG "%s: Media selection failed, now trying "
1956 "%s port.\n",
1957 dev->name, media_tbl[dev->if_port].name);
1958 next_tick = media_tbl[dev->if_port].wait;
1959 }
John W. Linville62afe592005-11-07 00:58:02 -08001960 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1962
1963 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001964 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965 config = BFINS(config, dev->if_port, 20, 4);
John W. Linville62afe592005-11-07 00:58:02 -08001966 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967
John W. Linville62afe592005-11-07 00:58:02 -08001968 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969 ioaddr + EL3_CMD);
1970 if (vortex_debug > 1)
1971 printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config);
1972 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1973 }
1974 EL3WINDOW(old_window);
1975 enable_irq(dev->irq);
1976
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
1982 mod_timer(&vp->timer, RUN_AT(next_tick));
1983 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001984 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985 return;
1986}
1987
1988static void vortex_tx_timeout(struct net_device *dev)
1989{
1990 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001991 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992
1993 printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001994 dev->name, ioread8(ioaddr + TxStatus),
1995 ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996 EL3WINDOW(4);
1997 printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001998 ioread16(ioaddr + Wn4_NetDiag),
1999 ioread16(ioaddr + Wn4_Media),
2000 ioread32(ioaddr + PktStatus),
2001 ioread16(ioaddr + Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08002003 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004 printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
2005 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002006 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002007 printk(KERN_ERR "%s: Interrupt posted but not delivered --"
2008 " IRQ blocked by another device?\n", dev->name);
2009 /* Bad idea here.. but we might as well handle a few events. */
2010 {
2011 /*
2012 * Block interrupts because vortex_interrupt does a bare spin_lock()
2013 */
2014 unsigned long flags;
2015 local_irq_save(flags);
2016 if (vp->full_bus_master_tx)
2017 boomerang_interrupt(dev->irq, dev, NULL);
2018 else
2019 vortex_interrupt(dev->irq, dev, NULL);
2020 local_irq_restore(flags);
2021 }
2022 }
2023
2024 if (vortex_debug > 0)
2025 dump_tx_ring(dev);
2026
2027 issue_and_wait(dev, TxReset);
2028
2029 vp->stats.tx_errors++;
2030 if (vp->full_bus_master_tx) {
2031 printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002032 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
2033 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034 ioaddr + DownListPtr);
2035 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
2036 netif_wake_queue (dev);
2037 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08002038 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
2039 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040 } else {
2041 vp->stats.tx_dropped++;
2042 netif_wake_queue(dev);
2043 }
2044
2045 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08002046 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002047 dev->trans_start = jiffies;
2048
2049 /* Switch to register set 7 for normal use. */
2050 EL3WINDOW(7);
2051}
2052
2053/*
2054 * Handle uncommon interrupt sources. This is a separate routine to minimize
2055 * the cache impact.
2056 */
2057static void
2058vortex_error(struct net_device *dev, int status)
2059{
2060 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002061 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 int do_tx_reset = 0, reset_mask = 0;
2063 unsigned char tx_status = 0;
2064
2065 if (vortex_debug > 2) {
2066 printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status);
2067 }
2068
2069 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08002070 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002071 /* Presumably a tx-timeout. We must merely re-enable. */
2072 if (vortex_debug > 2
2073 || (tx_status != 0x88 && vortex_debug > 0)) {
2074 printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n",
2075 dev->name, tx_status);
2076 if (tx_status == 0x82) {
2077 printk(KERN_ERR "Probably a duplex mismatch. See "
2078 "Documentation/networking/vortex.txt\n");
2079 }
2080 dump_tx_ring(dev);
2081 }
2082 if (tx_status & 0x14) vp->stats.tx_fifo_errors++;
2083 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
John W. Linville62afe592005-11-07 00:58:02 -08002084 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002085 if (tx_status & 0x30) { /* txJabber or txUnderrun */
2086 do_tx_reset = 1;
2087 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
2088 do_tx_reset = 1;
2089 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
2090 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002091 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092 }
2093 }
2094
2095 if (status & RxEarly) { /* Rx early is unused. */
2096 vortex_rx(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002097 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098 }
2099 if (status & StatsFull) { /* Empty statistics. */
2100 static int DoneDidThat;
2101 if (vortex_debug > 4)
2102 printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
2103 update_stats(ioaddr, dev);
2104 /* HACK: Disable statistics as an interrupt source. */
2105 /* This occurs when we have the wrong media type! */
2106 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08002107 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 printk(KERN_WARNING "%s: Updating statistics failed, disabling "
2109 "stats as an interrupt source.\n", dev->name);
2110 EL3WINDOW(5);
John W. Linville62afe592005-11-07 00:58:02 -08002111 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112 vp->intr_enable &= ~StatsFull;
2113 EL3WINDOW(7);
2114 DoneDidThat++;
2115 }
2116 }
2117 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08002118 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
2119 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 }
2121 if (status & HostError) {
2122 u16 fifo_diag;
2123 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002124 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125 printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
2126 dev->name, fifo_diag);
2127 /* Adapter failure requires Tx/Rx reset and reinit. */
2128 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08002129 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130 /* 0x80000000 PCI master abort. */
2131 /* 0x40000000 PCI target abort. */
2132 if (vortex_debug)
2133 printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
2134
2135 /* In this case, blow the card away */
2136 /* Must not enter D3 or we can't legally issue the reset! */
2137 vortex_down(dev, 0);
2138 issue_and_wait(dev, TotalReset | 0xff);
2139 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
2140 } else if (fifo_diag & 0x0400)
2141 do_tx_reset = 1;
2142 if (fifo_diag & 0x3000) {
2143 /* Reset Rx fifo and upload logic */
2144 issue_and_wait(dev, RxReset|0x07);
2145 /* Set the Rx filter to the current state. */
2146 set_rx_mode(dev);
2147 /* enable 802.1q VLAN tagged frames */
2148 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08002149 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2150 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151 }
2152 }
2153
2154 if (do_tx_reset) {
2155 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08002156 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 if (!vp->full_bus_master_tx)
2158 netif_wake_queue(dev);
2159 }
2160}
2161
2162static int
2163vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2164{
2165 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002166 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002167
2168 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002169 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170 if (vp->bus_master) {
2171 /* Set the bus-master controller to transfer the packet. */
2172 int len = (skb->len + 3) & ~3;
John W. Linville62afe592005-11-07 00:58:02 -08002173 iowrite32( vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174 ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002175 iowrite16(len, ioaddr + Wn7_MasterLen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002177 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178 /* netif_wake_queue() will be called at the DMADone interrupt. */
2179 } else {
2180 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002181 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002183 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184 netif_start_queue (dev); /* AKPM: redundant? */
2185 } else {
2186 /* Interrupt us when the FIFO has room for max-sized packet. */
2187 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002188 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189 }
2190 }
2191
2192 dev->trans_start = jiffies;
2193
2194 /* Clear the Tx status stack. */
2195 {
2196 int tx_status;
2197 int i = 32;
2198
John W. Linville62afe592005-11-07 00:58:02 -08002199 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2201 if (vortex_debug > 2)
2202 printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
2203 dev->name, tx_status);
2204 if (tx_status & 0x04) vp->stats.tx_fifo_errors++;
2205 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
2206 if (tx_status & 0x30) {
2207 issue_and_wait(dev, TxReset);
2208 }
John W. Linville62afe592005-11-07 00:58:02 -08002209 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002210 }
John W. Linville62afe592005-11-07 00:58:02 -08002211 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212 }
2213 }
2214 return 0;
2215}
2216
2217static int
2218boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2219{
2220 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002221 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222 /* Calculate the next Tx descriptor entry. */
2223 int entry = vp->cur_tx % TX_RING_SIZE;
2224 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2225 unsigned long flags;
2226
2227 if (vortex_debug > 6) {
2228 printk(KERN_DEBUG "boomerang_start_xmit()\n");
John W. Linville0f667ff2005-06-21 17:15:14 -07002229 printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
2230 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231 }
2232
2233 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2234 if (vortex_debug > 0)
2235 printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n",
2236 dev->name);
2237 netif_stop_queue(dev);
2238 return 1;
2239 }
2240
2241 vp->tx_skbuff[entry] = skb;
2242
2243 vp->tx_ring[entry].next = 0;
2244#if DO_ZEROCOPY
2245 if (skb->ip_summed != CHECKSUM_HW)
2246 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2247 else
2248 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2249
2250 if (!skb_shinfo(skb)->nr_frags) {
2251 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2252 skb->len, PCI_DMA_TODEVICE));
2253 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2254 } else {
2255 int i;
2256
2257 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2258 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2259 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2260
2261 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2262 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2263
2264 vp->tx_ring[entry].frag[i+1].addr =
2265 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2266 (void*)page_address(frag->page) + frag->page_offset,
2267 frag->size, PCI_DMA_TODEVICE));
2268
2269 if (i == skb_shinfo(skb)->nr_frags-1)
2270 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2271 else
2272 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2273 }
2274 }
2275#else
2276 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2277 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2278 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2279#endif
2280
2281 spin_lock_irqsave(&vp->lock, flags);
2282 /* Wait for the stall to complete. */
2283 issue_and_wait(dev, DownStall);
2284 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002285 if (ioread32(ioaddr + DownListPtr) == 0) {
2286 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287 vp->queued_packet++;
2288 }
2289
2290 vp->cur_tx++;
2291 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2292 netif_stop_queue (dev);
2293 } else { /* Clear previous interrupt enable. */
2294#if defined(tx_interrupt_mitigation)
2295 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2296 * were selected, this would corrupt DN_COMPLETE. No?
2297 */
2298 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2299#endif
2300 }
John W. Linville62afe592005-11-07 00:58:02 -08002301 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002302 spin_unlock_irqrestore(&vp->lock, flags);
2303 dev->trans_start = jiffies;
2304 return 0;
2305}
2306
2307/* The interrupt handler does all of the Rx thread work and cleans up
2308 after the Tx thread. */
2309
2310/*
2311 * This is the ISR for the vortex series chips.
2312 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2313 */
2314
2315static irqreturn_t
2316vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2317{
2318 struct net_device *dev = dev_id;
2319 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002320 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321 int status;
2322 int work_done = max_interrupt_work;
2323 int handled = 0;
2324
John W. Linville62afe592005-11-07 00:58:02 -08002325 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002326 spin_lock(&vp->lock);
2327
John W. Linville62afe592005-11-07 00:58:02 -08002328 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002329
2330 if (vortex_debug > 6)
2331 printk("vortex_interrupt(). status=0x%4x\n", status);
2332
2333 if ((status & IntLatch) == 0)
2334 goto handler_exit; /* No interrupt: shared IRQs cause this */
2335 handled = 1;
2336
2337 if (status & IntReq) {
2338 status |= vp->deferred;
2339 vp->deferred = 0;
2340 }
2341
2342 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2343 goto handler_exit;
2344
2345 if (vortex_debug > 4)
2346 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002347 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002348
2349 do {
2350 if (vortex_debug > 5)
2351 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2352 dev->name, status);
2353 if (status & RxComplete)
2354 vortex_rx(dev);
2355
2356 if (status & TxAvailable) {
2357 if (vortex_debug > 5)
2358 printk(KERN_DEBUG " TX room bit was handled.\n");
2359 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002360 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002361 netif_wake_queue (dev);
2362 }
2363
2364 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002365 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2366 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2368 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002369 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370 /*
2371 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2372 * insufficient FIFO room, the TxAvailable test will succeed and call
2373 * netif_wake_queue()
2374 */
2375 netif_wake_queue(dev);
2376 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002377 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002378 netif_stop_queue(dev);
2379 }
2380 }
2381 }
2382 /* Check for all uncommon interrupts at once. */
2383 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2384 if (status == 0xffff)
2385 break;
2386 vortex_error(dev, status);
2387 }
2388
2389 if (--work_done < 0) {
2390 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2391 "%4.4x.\n", dev->name, status);
2392 /* Disable all pending interrupts. */
2393 do {
2394 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002395 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002396 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002397 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2398 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002399 /* The timer will reenable interrupts. */
2400 mod_timer(&vp->timer, jiffies + 1*HZ);
2401 break;
2402 }
2403 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002404 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2405 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002406
2407 if (vortex_debug > 4)
2408 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2409 dev->name, status);
2410handler_exit:
2411 spin_unlock(&vp->lock);
2412 return IRQ_RETVAL(handled);
2413}
2414
2415/*
2416 * This is the ISR for the boomerang series chips.
2417 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2418 */
2419
2420static irqreturn_t
2421boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2422{
2423 struct net_device *dev = dev_id;
2424 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002425 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002426 int status;
2427 int work_done = max_interrupt_work;
2428
John W. Linville62afe592005-11-07 00:58:02 -08002429 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430
2431 /*
2432 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2433 * and boomerang_start_xmit
2434 */
2435 spin_lock(&vp->lock);
2436
John W. Linville62afe592005-11-07 00:58:02 -08002437 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438
2439 if (vortex_debug > 6)
2440 printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status);
2441
2442 if ((status & IntLatch) == 0)
2443 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2444
2445 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2446 if (vortex_debug > 1)
2447 printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n");
2448 goto handler_exit;
2449 }
2450
2451 if (status & IntReq) {
2452 status |= vp->deferred;
2453 vp->deferred = 0;
2454 }
2455
2456 if (vortex_debug > 4)
2457 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002458 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002459 do {
2460 if (vortex_debug > 5)
2461 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2462 dev->name, status);
2463 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002464 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465 if (vortex_debug > 5)
2466 printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n");
2467 boomerang_rx(dev);
2468 }
2469
2470 if (status & DownComplete) {
2471 unsigned int dirty_tx = vp->dirty_tx;
2472
John W. Linville62afe592005-11-07 00:58:02 -08002473 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002474 while (vp->cur_tx - dirty_tx > 0) {
2475 int entry = dirty_tx % TX_RING_SIZE;
2476#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002477 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002478 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2479 break; /* It still hasn't been processed. */
2480#else
2481 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2482 break; /* It still hasn't been processed. */
2483#endif
2484
2485 if (vp->tx_skbuff[entry]) {
2486 struct sk_buff *skb = vp->tx_skbuff[entry];
2487#if DO_ZEROCOPY
2488 int i;
2489 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2490 pci_unmap_single(VORTEX_PCI(vp),
2491 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2492 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2493 PCI_DMA_TODEVICE);
2494#else
2495 pci_unmap_single(VORTEX_PCI(vp),
2496 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2497#endif
2498 dev_kfree_skb_irq(skb);
2499 vp->tx_skbuff[entry] = NULL;
2500 } else {
2501 printk(KERN_DEBUG "boomerang_interrupt: no skb!\n");
2502 }
2503 /* vp->stats.tx_packets++; Counted below. */
2504 dirty_tx++;
2505 }
2506 vp->dirty_tx = dirty_tx;
2507 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2508 if (vortex_debug > 6)
2509 printk(KERN_DEBUG "boomerang_interrupt: wake queue\n");
2510 netif_wake_queue (dev);
2511 }
2512 }
2513
2514 /* Check for all uncommon interrupts at once. */
2515 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2516 vortex_error(dev, status);
2517
2518 if (--work_done < 0) {
2519 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2520 "%4.4x.\n", dev->name, status);
2521 /* Disable all pending interrupts. */
2522 do {
2523 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002524 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002526 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2527 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528 /* The timer will reenable interrupts. */
2529 mod_timer(&vp->timer, jiffies + 1*HZ);
2530 break;
2531 }
2532 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002533 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002534 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002535 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002536
John W. Linville62afe592005-11-07 00:58:02 -08002537 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002538
2539 if (vortex_debug > 4)
2540 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2541 dev->name, status);
2542handler_exit:
2543 spin_unlock(&vp->lock);
2544 return IRQ_HANDLED;
2545}
2546
2547static int vortex_rx(struct net_device *dev)
2548{
2549 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002550 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002551 int i;
2552 short rx_status;
2553
2554 if (vortex_debug > 5)
2555 printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002556 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2557 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002558 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002559 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002560 if (vortex_debug > 2)
2561 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2562 vp->stats.rx_errors++;
2563 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2564 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2565 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2566 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2567 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2568 } else {
2569 /* The packet length: up to 4.5K!. */
2570 int pkt_len = rx_status & 0x1fff;
2571 struct sk_buff *skb;
2572
2573 skb = dev_alloc_skb(pkt_len + 5);
2574 if (vortex_debug > 4)
2575 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2576 pkt_len, rx_status);
2577 if (skb != NULL) {
2578 skb->dev = dev;
2579 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2580 /* 'skb_put()' points to the start of sk_buff data area. */
2581 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002582 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002583 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2584 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002585 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2586 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2587 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2588 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002589 ;
2590 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2591 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002592 ioread32_rep(ioaddr + RX_FIFO,
2593 skb_put(skb, pkt_len),
2594 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002595 }
John W. Linville62afe592005-11-07 00:58:02 -08002596 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002597 skb->protocol = eth_type_trans(skb, dev);
2598 netif_rx(skb);
2599 dev->last_rx = jiffies;
2600 vp->stats.rx_packets++;
2601 /* Wait a limited time to go to next packet. */
2602 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002603 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002604 break;
2605 continue;
2606 } else if (vortex_debug > 0)
2607 printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
2608 "size %d.\n", dev->name, pkt_len);
2609 }
2610 vp->stats.rx_dropped++;
2611 issue_and_wait(dev, RxDiscard);
2612 }
2613
2614 return 0;
2615}
2616
2617static int
2618boomerang_rx(struct net_device *dev)
2619{
2620 struct vortex_private *vp = netdev_priv(dev);
2621 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002622 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002623 int rx_status;
2624 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2625
2626 if (vortex_debug > 5)
John W. Linville62afe592005-11-07 00:58:02 -08002627 printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002628
2629 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2630 if (--rx_work_limit < 0)
2631 break;
2632 if (rx_status & RxDError) { /* Error, update stats. */
2633 unsigned char rx_error = rx_status >> 16;
2634 if (vortex_debug > 2)
2635 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2636 vp->stats.rx_errors++;
2637 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2638 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2639 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2640 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2641 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2642 } else {
2643 /* The packet length: up to 4.5K!. */
2644 int pkt_len = rx_status & 0x1fff;
2645 struct sk_buff *skb;
2646 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2647
2648 if (vortex_debug > 4)
2649 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2650 pkt_len, rx_status);
2651
2652 /* Check if the packet is long enough to just accept without
2653 copying to a properly sized skbuff. */
2654 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
2655 skb->dev = dev;
2656 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2657 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2658 /* 'skb_put()' points to the start of sk_buff data area. */
2659 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002660 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002661 pkt_len);
2662 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2663 vp->rx_copy++;
2664 } else {
2665 /* Pass up the skbuff already on the Rx ring. */
2666 skb = vp->rx_skbuff[entry];
2667 vp->rx_skbuff[entry] = NULL;
2668 skb_put(skb, pkt_len);
2669 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2670 vp->rx_nocopy++;
2671 }
2672 skb->protocol = eth_type_trans(skb, dev);
2673 { /* Use hardware checksum info. */
2674 int csum_bits = rx_status & 0xee000000;
2675 if (csum_bits &&
2676 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2677 csum_bits == (IPChksumValid | UDPChksumValid))) {
2678 skb->ip_summed = CHECKSUM_UNNECESSARY;
2679 vp->rx_csumhits++;
2680 }
2681 }
2682 netif_rx(skb);
2683 dev->last_rx = jiffies;
2684 vp->stats.rx_packets++;
2685 }
2686 entry = (++vp->cur_rx) % RX_RING_SIZE;
2687 }
2688 /* Refill the Rx ring buffers. */
2689 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2690 struct sk_buff *skb;
2691 entry = vp->dirty_rx % RX_RING_SIZE;
2692 if (vp->rx_skbuff[entry] == NULL) {
2693 skb = dev_alloc_skb(PKT_BUF_SZ);
2694 if (skb == NULL) {
2695 static unsigned long last_jif;
2696 if ((jiffies - last_jif) > 10 * HZ) {
2697 printk(KERN_WARNING "%s: memory shortage\n", dev->name);
2698 last_jif = jiffies;
2699 }
2700 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2701 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2702 break; /* Bad news! */
2703 }
2704 skb->dev = dev; /* Mark as being used by this device. */
2705 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07002706 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 -07002707 vp->rx_skbuff[entry] = skb;
2708 }
2709 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002710 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002711 }
2712 return 0;
2713}
2714
2715/*
2716 * If we've hit a total OOM refilling the Rx ring we poll once a second
2717 * for some memory. Otherwise there is no way to restart the rx process.
2718 */
2719static void
2720rx_oom_timer(unsigned long arg)
2721{
2722 struct net_device *dev = (struct net_device *)arg;
2723 struct vortex_private *vp = netdev_priv(dev);
2724
2725 spin_lock_irq(&vp->lock);
2726 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2727 boomerang_rx(dev);
2728 if (vortex_debug > 1) {
2729 printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name,
2730 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2731 }
2732 spin_unlock_irq(&vp->lock);
2733}
2734
2735static void
2736vortex_down(struct net_device *dev, int final_down)
2737{
2738 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002739 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002740
2741 netif_stop_queue (dev);
2742
2743 del_timer_sync(&vp->rx_oom_timer);
2744 del_timer_sync(&vp->timer);
2745
2746 /* Turn off statistics ASAP. We update vp->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002747 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002748
2749 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002750 iowrite16(RxDisable, ioaddr + EL3_CMD);
2751 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002752
2753 /* Disable receiving 802.1q tagged frames */
2754 set_8021q_mode(dev, 0);
2755
2756 if (dev->if_port == XCVR_10base2)
2757 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002758 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002759
John W. Linville62afe592005-11-07 00:58:02 -08002760 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002761
2762 update_stats(ioaddr, dev);
2763 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002764 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002765 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002766 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767
2768 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002769 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002770 pci_save_state(VORTEX_PCI(vp));
2771 acpi_set_WOL(dev);
2772 }
2773}
2774
2775static int
2776vortex_close(struct net_device *dev)
2777{
2778 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002779 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002780 int i;
2781
2782 if (netif_device_present(dev))
2783 vortex_down(dev, 1);
2784
2785 if (vortex_debug > 1) {
2786 printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002787 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002788 printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
2789 " tx_queued %d Rx pre-checksummed %d.\n",
2790 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2791 }
2792
2793#if DO_ZEROCOPY
2794 if ( vp->rx_csumhits &&
2795 ((vp->drv_flags & HAS_HWCKSM) == 0) &&
2796 (hw_checksums[vp->card_idx] == -1)) {
2797 printk(KERN_WARNING "%s supports hardware checksums, and we're not using them!\n", dev->name);
2798 }
2799#endif
2800
2801 free_irq(dev->irq, dev);
2802
2803 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2804 for (i = 0; i < RX_RING_SIZE; i++)
2805 if (vp->rx_skbuff[i]) {
2806 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2807 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2808 dev_kfree_skb(vp->rx_skbuff[i]);
2809 vp->rx_skbuff[i] = NULL;
2810 }
2811 }
2812 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2813 for (i = 0; i < TX_RING_SIZE; i++) {
2814 if (vp->tx_skbuff[i]) {
2815 struct sk_buff *skb = vp->tx_skbuff[i];
2816#if DO_ZEROCOPY
2817 int k;
2818
2819 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2820 pci_unmap_single(VORTEX_PCI(vp),
2821 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2822 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2823 PCI_DMA_TODEVICE);
2824#else
2825 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2826#endif
2827 dev_kfree_skb(skb);
2828 vp->tx_skbuff[i] = NULL;
2829 }
2830 }
2831 }
2832
2833 return 0;
2834}
2835
2836static void
2837dump_tx_ring(struct net_device *dev)
2838{
2839 if (vortex_debug > 0) {
2840 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002841 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002842
2843 if (vp->full_bus_master_tx) {
2844 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002845 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002846
2847 printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
2848 vp->full_bus_master_tx,
2849 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2850 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
2851 printk(KERN_ERR " Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002852 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002853 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2854 issue_and_wait(dev, DownStall);
2855 for (i = 0; i < TX_RING_SIZE; i++) {
2856 printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i,
2857 &vp->tx_ring[i],
2858#if DO_ZEROCOPY
2859 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2860#else
2861 le32_to_cpu(vp->tx_ring[i].length),
2862#endif
2863 le32_to_cpu(vp->tx_ring[i].status));
2864 }
2865 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002866 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002867 }
2868 }
2869}
2870
2871static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2872{
2873 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002874 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002875 unsigned long flags;
2876
2877 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2878 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002879 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002880 spin_unlock_irqrestore (&vp->lock, flags);
2881 }
2882 return &vp->stats;
2883}
2884
2885/* Update statistics.
2886 Unlike with the EL3 we need not worry about interrupts changing
2887 the window setting from underneath us, but we must still guard
2888 against a race condition with a StatsUpdate interrupt updating the
2889 table. This is done by checking that the ASM (!) code generated uses
2890 atomic updates with '+='.
2891 */
John W. Linville62afe592005-11-07 00:58:02 -08002892static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002893{
2894 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002895 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002896
2897 if (old_window == 0xffff) /* Chip suspended or ejected. */
2898 return;
2899 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2900 /* Switch to the stats window, and read everything. */
2901 EL3WINDOW(6);
John W. Linville62afe592005-11-07 00:58:02 -08002902 vp->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2903 vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
2904 vp->stats.collisions += ioread8(ioaddr + 3);
2905 vp->stats.tx_window_errors += ioread8(ioaddr + 4);
2906 vp->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2907 vp->stats.tx_packets += ioread8(ioaddr + 6);
2908 vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
2909 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002910 /* Don't bother with register 9, an extension of registers 6&7.
2911 If we do use the 6&7 values the atomic update assumption above
2912 is invalid. */
John W. Linville62afe592005-11-07 00:58:02 -08002913 vp->stats.rx_bytes += ioread16(ioaddr + 10);
2914 vp->stats.tx_bytes += ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002915 /* Extra stats for get_ethtool_stats() */
John W. Linville62afe592005-11-07 00:58:02 -08002916 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
2917 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002918 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002919 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002920
2921 {
John W. Linville62afe592005-11-07 00:58:02 -08002922 u8 up = ioread8(ioaddr + 13);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002923 vp->stats.rx_bytes += (up & 0x0f) << 16;
2924 vp->stats.tx_bytes += (up & 0xf0) << 12;
2925 }
2926
2927 EL3WINDOW(old_window >> 13);
2928 return;
2929}
2930
2931static int vortex_nway_reset(struct net_device *dev)
2932{
2933 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002934 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002935 unsigned long flags;
2936 int rc;
2937
2938 spin_lock_irqsave(&vp->lock, flags);
2939 EL3WINDOW(4);
2940 rc = mii_nway_restart(&vp->mii);
2941 spin_unlock_irqrestore(&vp->lock, flags);
2942 return rc;
2943}
2944
2945static u32 vortex_get_link(struct net_device *dev)
2946{
2947 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002948 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002949 unsigned long flags;
2950 int rc;
2951
2952 spin_lock_irqsave(&vp->lock, flags);
2953 EL3WINDOW(4);
2954 rc = mii_link_ok(&vp->mii);
2955 spin_unlock_irqrestore(&vp->lock, flags);
2956 return rc;
2957}
2958
2959static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2960{
2961 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002962 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002963 unsigned long flags;
2964 int rc;
2965
2966 spin_lock_irqsave(&vp->lock, flags);
2967 EL3WINDOW(4);
2968 rc = mii_ethtool_gset(&vp->mii, cmd);
2969 spin_unlock_irqrestore(&vp->lock, flags);
2970 return rc;
2971}
2972
2973static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2974{
2975 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002976 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002977 unsigned long flags;
2978 int rc;
2979
2980 spin_lock_irqsave(&vp->lock, flags);
2981 EL3WINDOW(4);
2982 rc = mii_ethtool_sset(&vp->mii, cmd);
2983 spin_unlock_irqrestore(&vp->lock, flags);
2984 return rc;
2985}
2986
2987static u32 vortex_get_msglevel(struct net_device *dev)
2988{
2989 return vortex_debug;
2990}
2991
2992static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2993{
2994 vortex_debug = dbg;
2995}
2996
2997static int vortex_get_stats_count(struct net_device *dev)
2998{
2999 return VORTEX_NUM_STATS;
3000}
3001
3002static void vortex_get_ethtool_stats(struct net_device *dev,
3003 struct ethtool_stats *stats, u64 *data)
3004{
3005 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003006 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003007 unsigned long flags;
3008
3009 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08003010 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003011 spin_unlock_irqrestore(&vp->lock, flags);
3012
3013 data[0] = vp->xstats.tx_deferred;
3014 data[1] = vp->xstats.tx_multiple_collisions;
3015 data[2] = vp->xstats.rx_bad_ssd;
3016}
3017
3018
3019static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
3020{
3021 switch (stringset) {
3022 case ETH_SS_STATS:
3023 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
3024 break;
3025 default:
3026 WARN_ON(1);
3027 break;
3028 }
3029}
3030
3031static void vortex_get_drvinfo(struct net_device *dev,
3032 struct ethtool_drvinfo *info)
3033{
3034 struct vortex_private *vp = netdev_priv(dev);
3035
3036 strcpy(info->driver, DRV_NAME);
3037 strcpy(info->version, DRV_VERSION);
3038 if (VORTEX_PCI(vp)) {
3039 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
3040 } else {
3041 if (VORTEX_EISA(vp))
3042 sprintf(info->bus_info, vp->gendev->bus_id);
3043 else
3044 sprintf(info->bus_info, "EISA 0x%lx %d",
3045 dev->base_addr, dev->irq);
3046 }
3047}
3048
3049static struct ethtool_ops vortex_ethtool_ops = {
3050 .get_drvinfo = vortex_get_drvinfo,
3051 .get_strings = vortex_get_strings,
3052 .get_msglevel = vortex_get_msglevel,
3053 .set_msglevel = vortex_set_msglevel,
3054 .get_ethtool_stats = vortex_get_ethtool_stats,
3055 .get_stats_count = vortex_get_stats_count,
3056 .get_settings = vortex_get_settings,
3057 .set_settings = vortex_set_settings,
3058 .get_link = vortex_get_link,
3059 .nway_reset = vortex_nway_reset,
3060};
3061
3062#ifdef CONFIG_PCI
3063/*
3064 * Must power the device up to do MDIO operations
3065 */
3066static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3067{
3068 int err;
3069 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003070 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003071 unsigned long flags;
3072 int state = 0;
3073
3074 if(VORTEX_PCI(vp))
3075 state = VORTEX_PCI(vp)->current_state;
3076
3077 /* The kernel core really should have pci_get_power_state() */
3078
3079 if(state != 0)
3080 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
3081 spin_lock_irqsave(&vp->lock, flags);
3082 EL3WINDOW(4);
3083 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
3084 spin_unlock_irqrestore(&vp->lock, flags);
3085 if(state != 0)
3086 pci_set_power_state(VORTEX_PCI(vp), state);
3087
3088 return err;
3089}
3090#endif
3091
3092
3093/* Pre-Cyclone chips have no documented multicast filter, so the only
3094 multicast setting is to receive all multicast frames. At least
3095 the chip has a very clean way to set the mode, unlike many others. */
3096static void set_rx_mode(struct net_device *dev)
3097{
John W. Linville62afe592005-11-07 00:58:02 -08003098 struct vortex_private *vp = netdev_priv(dev);
3099 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003100 int new_mode;
3101
3102 if (dev->flags & IFF_PROMISC) {
3103 if (vortex_debug > 0)
3104 printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
3105 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
3106 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
3107 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
3108 } else
3109 new_mode = SetRxFilter | RxStation | RxBroadcast;
3110
John W. Linville62afe592005-11-07 00:58:02 -08003111 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003112}
3113
3114#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
3115/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
3116 Note that this must be done after each RxReset due to some backwards
3117 compatibility logic in the Cyclone and Tornado ASICs */
3118
3119/* The Ethernet Type used for 802.1q tagged frames */
3120#define VLAN_ETHER_TYPE 0x8100
3121
3122static void set_8021q_mode(struct net_device *dev, int enable)
3123{
3124 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003125 void __iomem *ioaddr = vp->ioaddr;
3126 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003127 int mac_ctrl;
3128
3129 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
3130 /* cyclone and tornado chipsets can recognize 802.1q
3131 * tagged frames and treat them correctly */
3132
3133 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
3134 if (enable)
3135 max_pkt_size += 4; /* 802.1Q VLAN tag */
3136
3137 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003138 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003139
3140 /* set VlanEtherType to let the hardware checksumming
3141 treat tagged frames correctly */
3142 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003143 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003144 } else {
3145 /* on older cards we have to enable large frames */
3146
3147 vp->large_frames = dev->mtu > 1500 || enable;
3148
3149 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003150 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003151 if (vp->large_frames)
3152 mac_ctrl |= 0x40;
3153 else
3154 mac_ctrl &= ~0x40;
John W. Linville62afe592005-11-07 00:58:02 -08003155 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003156 }
3157
3158 EL3WINDOW(old_window);
3159}
3160#else
3161
3162static void set_8021q_mode(struct net_device *dev, int enable)
3163{
3164}
3165
3166
3167#endif
3168
3169/* MII transceiver control section.
3170 Read and write the MII registers using software-generated serial
3171 MDIO protocol. See the MII specifications or DP83840A data sheet
3172 for details. */
3173
3174/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3175 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3176 "overclocking" issues. */
John W. Linville62afe592005-11-07 00:58:02 -08003177#define mdio_delay() ioread32(mdio_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003178
3179#define MDIO_SHIFT_CLK 0x01
3180#define MDIO_DIR_WRITE 0x04
3181#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3182#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3183#define MDIO_DATA_READ 0x02
3184#define MDIO_ENB_IN 0x00
3185
3186/* Generate the preamble required for initial synchronization and
3187 a few older transceivers. */
John W. Linville62afe592005-11-07 00:58:02 -08003188static void mdio_sync(void __iomem *ioaddr, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003189{
John W. Linville62afe592005-11-07 00:58:02 -08003190 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003191
3192 /* Establish sync by sending at least 32 logic ones. */
3193 while (-- bits >= 0) {
John W. Linville62afe592005-11-07 00:58:02 -08003194 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003195 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003196 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003197 mdio_delay();
3198 }
3199}
3200
3201static int mdio_read(struct net_device *dev, int phy_id, int location)
3202{
3203 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003204 struct vortex_private *vp = netdev_priv(dev);
3205 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003206 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3207 unsigned int retval = 0;
John W. Linville62afe592005-11-07 00:58:02 -08003208 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003209
3210 if (mii_preamble_required)
3211 mdio_sync(ioaddr, 32);
3212
3213 /* Shift the read command bits out. */
3214 for (i = 14; i >= 0; i--) {
3215 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003216 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003217 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003218 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003219 mdio_delay();
3220 }
3221 /* Read the two transition, 16 data, and wire-idle bits. */
3222 for (i = 19; i > 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003223 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003224 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003225 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3226 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003227 mdio_delay();
3228 }
3229 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3230}
3231
3232static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3233{
John W. Linville62afe592005-11-07 00:58:02 -08003234 struct vortex_private *vp = netdev_priv(dev);
3235 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003236 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
John W. Linville62afe592005-11-07 00:58:02 -08003237 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003238 int i;
3239
3240 if (mii_preamble_required)
3241 mdio_sync(ioaddr, 32);
3242
3243 /* Shift the command bits out. */
3244 for (i = 31; i >= 0; i--) {
3245 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003246 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003247 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003248 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003249 mdio_delay();
3250 }
3251 /* Leave the interface idle. */
3252 for (i = 1; i >= 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003253 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003254 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003255 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003256 mdio_delay();
3257 }
3258 return;
3259}
3260
3261/* ACPI: Advanced Configuration and Power Interface. */
3262/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3263static void acpi_set_WOL(struct net_device *dev)
3264{
3265 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003266 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003267
3268 if (vp->enable_wol) {
3269 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3270 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003271 iowrite16(2, ioaddr + 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003272 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003273 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3274 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003275
3276 pci_enable_wake(VORTEX_PCI(vp), 0, 1);
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003277
3278 /* Change the power state to D3; RxEnable doesn't take effect. */
3279 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003280 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003281}
3282
3283
3284static void __devexit vortex_remove_one (struct pci_dev *pdev)
3285{
3286 struct net_device *dev = pci_get_drvdata(pdev);
3287 struct vortex_private *vp;
3288
3289 if (!dev) {
3290 printk("vortex_remove_one called for Compaq device!\n");
3291 BUG();
3292 }
3293
3294 vp = netdev_priv(dev);
3295
John W. Linville62afe592005-11-07 00:58:02 -08003296 if (vp->cb_fn_base)
3297 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3298
Linus Torvalds1da177e2005-04-16 15:20:36 -07003299 unregister_netdev(dev);
3300
3301 if (VORTEX_PCI(vp)) {
3302 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3303 if (vp->pm_state_valid)
3304 pci_restore_state(VORTEX_PCI(vp));
3305 pci_disable_device(VORTEX_PCI(vp));
3306 }
3307 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003308 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3309 vp->ioaddr + EL3_CMD);
3310
3311 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003312
3313 pci_free_consistent(pdev,
3314 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3315 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3316 vp->rx_ring,
3317 vp->rx_ring_dma);
3318 if (vp->must_free_region)
3319 release_region(dev->base_addr, vp->io_size);
3320 free_netdev(dev);
3321}
3322
3323
3324static struct pci_driver vortex_driver = {
3325 .name = "3c59x",
3326 .probe = vortex_init_one,
3327 .remove = __devexit_p(vortex_remove_one),
3328 .id_table = vortex_pci_tbl,
3329#ifdef CONFIG_PM
3330 .suspend = vortex_suspend,
3331 .resume = vortex_resume,
3332#endif
3333};
3334
3335
3336static int vortex_have_pci;
3337static int vortex_have_eisa;
3338
3339
3340static int __init vortex_init (void)
3341{
3342 int pci_rc, eisa_rc;
3343
3344 pci_rc = pci_module_init(&vortex_driver);
3345 eisa_rc = vortex_eisa_init();
3346
3347 if (pci_rc == 0)
3348 vortex_have_pci = 1;
3349 if (eisa_rc > 0)
3350 vortex_have_eisa = 1;
3351
3352 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3353}
3354
3355
3356static void __exit vortex_eisa_cleanup (void)
3357{
3358 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003359 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003360
3361#ifdef CONFIG_EISA
3362 /* Take care of the EISA devices */
3363 eisa_driver_unregister (&vortex_eisa_driver);
3364#endif
3365
3366 if (compaq_net_device) {
3367 vp = compaq_net_device->priv;
John W. Linville62afe592005-11-07 00:58:02 -08003368 ioaddr = ioport_map(compaq_net_device->base_addr,
3369 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003370
3371 unregister_netdev (compaq_net_device);
John W. Linville62afe592005-11-07 00:58:02 -08003372 iowrite16 (TotalReset, ioaddr + EL3_CMD);
3373 release_region(compaq_net_device->base_addr,
3374 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003375
3376 free_netdev (compaq_net_device);
3377 }
3378}
3379
3380
3381static void __exit vortex_cleanup (void)
3382{
3383 if (vortex_have_pci)
3384 pci_unregister_driver (&vortex_driver);
3385 if (vortex_have_eisa)
3386 vortex_eisa_cleanup ();
3387}
3388
3389
3390module_init(vortex_init);
3391module_exit(vortex_cleanup);
3392
3393
3394/*
3395 * Local variables:
3396 * c-indent-level: 4
3397 * c-basic-offset: 4
3398 * tab-width: 4
3399 * End:
3400 */