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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;
John W. Linville32fb5f02005-11-07 00:58:05 -08001516 if (card_idx < MAX_UNITS &&
1517 ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
1518 hw_checksums[card_idx] == 1)) {
1519 dev->features |= NETIF_F_IP_CSUM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 }
1521 } else {
1522 dev->hard_start_xmit = vortex_start_xmit;
1523 }
1524
1525 if (print_info) {
1526 printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabled\n",
1527 print_name,
1528 (dev->features & NETIF_F_SG) ? "en":"dis",
1529 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1530 }
1531
1532 dev->stop = vortex_close;
1533 dev->get_stats = vortex_get_stats;
1534#ifdef CONFIG_PCI
1535 dev->do_ioctl = vortex_ioctl;
1536#endif
1537 dev->ethtool_ops = &vortex_ethtool_ops;
1538 dev->set_multicast_list = set_rx_mode;
1539 dev->tx_timeout = vortex_tx_timeout;
1540 dev->watchdog_timeo = (watchdog * HZ) / 1000;
1541#ifdef CONFIG_NET_POLL_CONTROLLER
1542 dev->poll_controller = poll_vortex;
1543#endif
1544 if (pdev) {
1545 vp->pm_state_valid = 1;
1546 pci_save_state(VORTEX_PCI(vp));
1547 acpi_set_WOL(dev);
1548 }
1549 retval = register_netdev(dev);
1550 if (retval == 0)
1551 return 0;
1552
1553free_ring:
1554 pci_free_consistent(pdev,
1555 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1556 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1557 vp->rx_ring,
1558 vp->rx_ring_dma);
1559free_region:
1560 if (vp->must_free_region)
John W. Linville62afe592005-11-07 00:58:02 -08001561 release_region(dev->base_addr, vci->io_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562 free_netdev(dev);
1563 printk(KERN_ERR PFX "vortex_probe1 fails. Returns %d\n", retval);
1564out:
1565 return retval;
1566}
1567
1568static void
1569issue_and_wait(struct net_device *dev, int cmd)
1570{
John W. Linville62afe592005-11-07 00:58:02 -08001571 struct vortex_private *vp = netdev_priv(dev);
1572 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001573 int i;
1574
John W. Linville62afe592005-11-07 00:58:02 -08001575 iowrite16(cmd, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576 for (i = 0; i < 2000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001577 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578 return;
1579 }
1580
1581 /* OK, that didn't work. Do it the slow way. One second */
1582 for (i = 0; i < 100000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001583 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584 if (vortex_debug > 1)
1585 printk(KERN_INFO "%s: command 0x%04x took %d usecs\n",
1586 dev->name, cmd, i * 10);
1587 return;
1588 }
1589 udelay(10);
1590 }
1591 printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001592 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593}
1594
1595static void
1596vortex_up(struct net_device *dev)
1597{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001599 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001600 unsigned int config;
1601 int i;
1602
1603 if (VORTEX_PCI(vp)) {
1604 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001605 if (vp->pm_state_valid)
1606 pci_restore_state(VORTEX_PCI(vp));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 pci_enable_device(VORTEX_PCI(vp));
1608 }
1609
1610 /* Before initializing select the active media port. */
1611 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001612 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613
1614 if (vp->media_override != 7) {
1615 printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
1616 dev->name, vp->media_override,
1617 media_tbl[vp->media_override].name);
1618 dev->if_port = vp->media_override;
1619 } else if (vp->autoselect) {
1620 if (vp->has_nway) {
1621 if (vortex_debug > 1)
1622 printk(KERN_INFO "%s: using NWAY device table, not %d\n",
1623 dev->name, dev->if_port);
1624 dev->if_port = XCVR_NWAY;
1625 } else {
1626 /* Find first available media type, starting with 100baseTx. */
1627 dev->if_port = XCVR_100baseTx;
1628 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1629 dev->if_port = media_tbl[dev->if_port].next;
1630 if (vortex_debug > 1)
1631 printk(KERN_INFO "%s: first available media type: %s\n",
1632 dev->name, media_tbl[dev->if_port].name);
1633 }
1634 } else {
1635 dev->if_port = vp->default_media;
1636 if (vortex_debug > 1)
1637 printk(KERN_INFO "%s: using default media %s\n",
1638 dev->name, media_tbl[dev->if_port].name);
1639 }
1640
1641 init_timer(&vp->timer);
1642 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1643 vp->timer.data = (unsigned long)dev;
1644 vp->timer.function = vortex_timer; /* timer handler */
1645 add_timer(&vp->timer);
1646
1647 init_timer(&vp->rx_oom_timer);
1648 vp->rx_oom_timer.data = (unsigned long)dev;
1649 vp->rx_oom_timer.function = rx_oom_timer;
1650
1651 if (vortex_debug > 1)
1652 printk(KERN_DEBUG "%s: Initial media type %s.\n",
1653 dev->name, media_tbl[dev->if_port].name);
1654
1655 vp->full_duplex = vp->force_fd;
1656 config = BFINS(config, dev->if_port, 20, 4);
1657 if (vortex_debug > 6)
1658 printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
John W. Linville62afe592005-11-07 00:58:02 -08001659 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660
1661 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1662 int mii_reg1, mii_reg5;
1663 EL3WINDOW(4);
1664 /* Read BMSR (reg1) only to clear old status. */
Neil Horman106427e2005-11-07 00:58:03 -08001665 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1666 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667 if (mii_reg5 == 0xffff || mii_reg5 == 0x0000) {
1668 netif_carrier_off(dev); /* No MII device or no link partner report */
1669 } else {
1670 mii_reg5 &= vp->advertising;
1671 if ((mii_reg5 & 0x0100) != 0 /* 100baseTx-FD */
1672 || (mii_reg5 & 0x00C0) == 0x0040) /* 10T-FD, but not 100-HD */
1673 vp->full_duplex = 1;
1674 netif_carrier_on(dev);
1675 }
1676 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
1677 if (vortex_debug > 1)
1678 printk(KERN_INFO "%s: MII #%d status %4.4x, link partner capability %4.4x,"
1679 " info1 %04x, setting %s-duplex.\n",
1680 dev->name, vp->phys[0],
1681 mii_reg1, mii_reg5,
1682 vp->info1, ((vp->info1 & 0x8000) || vp->full_duplex) ? "full" : "half");
1683 EL3WINDOW(3);
1684 }
1685
1686 /* Set the full-duplex bit. */
John W. Linville62afe592005-11-07 00:58:02 -08001687 iowrite16( ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688 (vp->large_frames ? 0x40 : 0) |
1689 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0),
1690 ioaddr + Wn3_MAC_Ctrl);
1691
1692 if (vortex_debug > 1) {
1693 printk(KERN_DEBUG "%s: vortex_up() InternalConfig %8.8x.\n",
1694 dev->name, config);
1695 }
1696
1697 issue_and_wait(dev, TxReset);
1698 /*
1699 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1700 */
1701 issue_and_wait(dev, RxReset|0x04);
1702
John W. Linville62afe592005-11-07 00:58:02 -08001703 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704
1705 if (vortex_debug > 1) {
1706 EL3WINDOW(4);
1707 printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001708 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709 }
1710
1711 /* Set the station address and mask in window 2 each time opened. */
1712 EL3WINDOW(2);
1713 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001714 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715 for (; i < 12; i+=2)
John W. Linville62afe592005-11-07 00:58:02 -08001716 iowrite16(0, ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717
1718 if (vp->cb_fn_base) {
John W. Linville62afe592005-11-07 00:58:02 -08001719 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001720 if (vp->drv_flags & INVERT_LED_PWR)
1721 n |= 0x10;
1722 if (vp->drv_flags & INVERT_MII_PWR)
1723 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001724 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 }
1726
1727 if (dev->if_port == XCVR_10base2)
1728 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001729 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 if (dev->if_port != XCVR_NWAY) {
1731 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001732 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1734 }
1735
1736 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001737 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 EL3WINDOW(6);
1739 for (i = 0; i < 10; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001740 ioread8(ioaddr + i);
1741 ioread16(ioaddr + 10);
1742 ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 /* New: On the Vortex we must also clear the BadSSD counter. */
1744 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001745 ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001746 /* ..and on the Boomerang we enable the extra statistics bits. */
John W. Linville62afe592005-11-07 00:58:02 -08001747 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748
1749 /* Switch to register set 7 for normal use. */
1750 EL3WINDOW(7);
1751
1752 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1753 vp->cur_rx = vp->dirty_rx = 0;
1754 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001755 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1756 iowrite32(0x0020, ioaddr + PktStatus);
1757 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758 }
1759 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1760 vp->cur_tx = vp->dirty_tx = 0;
1761 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001762 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 /* Clear the Rx, Tx rings. */
1764 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1765 vp->rx_ring[i].status = 0;
1766 for (i = 0; i < TX_RING_SIZE; i++)
1767 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001768 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 }
1770 /* Set receiver mode: presumably accept b-case and phys addr only. */
1771 set_rx_mode(dev);
1772 /* enable 802.1q tagged frames */
1773 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001774 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775
1776// issue_and_wait(dev, SetTxStart|0x07ff);
John W. Linville62afe592005-11-07 00:58:02 -08001777 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1778 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001779 /* Allow status bits to be seen. */
1780 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1781 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1782 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1783 (vp->bus_master ? DMADone : 0);
1784 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1785 (vp->full_bus_master_rx ? 0 : RxComplete) |
1786 StatsFull | HostError | TxComplete | IntReq
1787 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001788 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001790 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001792 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001794 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 netif_start_queue (dev);
1796}
1797
1798static int
1799vortex_open(struct net_device *dev)
1800{
1801 struct vortex_private *vp = netdev_priv(dev);
1802 int i;
1803 int retval;
1804
1805 /* Use the now-standard shared IRQ implementation. */
1806 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
1807 &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev))) {
1808 printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
1809 goto out;
1810 }
1811
1812 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1813 if (vortex_debug > 2)
1814 printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
1815 for (i = 0; i < RX_RING_SIZE; i++) {
1816 struct sk_buff *skb;
1817 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1818 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1819 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
1820 skb = dev_alloc_skb(PKT_BUF_SZ);
1821 vp->rx_skbuff[i] = skb;
1822 if (skb == NULL)
1823 break; /* Bad news! */
1824 skb->dev = dev; /* Mark as being used by this device. */
1825 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001826 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 -07001827 }
1828 if (i != RX_RING_SIZE) {
1829 int j;
1830 printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
1831 for (j = 0; j < i; j++) {
1832 if (vp->rx_skbuff[j]) {
1833 dev_kfree_skb(vp->rx_skbuff[j]);
1834 vp->rx_skbuff[j] = NULL;
1835 }
1836 }
1837 retval = -ENOMEM;
1838 goto out_free_irq;
1839 }
1840 /* Wrap the ring. */
1841 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1842 }
1843
1844 vortex_up(dev);
1845 return 0;
1846
1847out_free_irq:
1848 free_irq(dev->irq, dev);
1849out:
1850 if (vortex_debug > 1)
1851 printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval);
1852 return retval;
1853}
1854
1855static void
1856vortex_timer(unsigned long data)
1857{
1858 struct net_device *dev = (struct net_device *)data;
1859 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001860 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861 int next_tick = 60*HZ;
1862 int ok = 0;
1863 int media_status, mii_status, old_window;
1864
1865 if (vortex_debug > 2) {
1866 printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
1867 dev->name, media_tbl[dev->if_port].name);
1868 printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
1869 }
1870
1871 if (vp->medialock)
1872 goto leave_media_alone;
1873 disable_irq(dev->irq);
John W. Linville62afe592005-11-07 00:58:02 -08001874 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001875 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001876 media_status = ioread16(ioaddr + Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001877 switch (dev->if_port) {
1878 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1879 if (media_status & Media_LnkBeat) {
1880 netif_carrier_on(dev);
1881 ok = 1;
1882 if (vortex_debug > 1)
1883 printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
1884 dev->name, media_tbl[dev->if_port].name, media_status);
1885 } else {
1886 netif_carrier_off(dev);
1887 if (vortex_debug > 1) {
1888 printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n",
1889 dev->name, media_tbl[dev->if_port].name, media_status);
1890 }
1891 }
1892 break;
1893 case XCVR_MII: case XCVR_NWAY:
1894 {
1895 spin_lock_bh(&vp->lock);
Neil Horman106427e2005-11-07 00:58:03 -08001896 mii_status = mdio_read(dev, vp->phys[0], MII_BMSR);
Tommy Christensend9e46de2005-11-07 00:58:04 -08001897 if (!(mii_status & BMSR_LSTATUS)) {
1898 /* Re-read to get actual link status */
1899 mii_status = mdio_read(dev, vp->phys[0], MII_BMSR);
1900 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901 ok = 1;
1902 if (vortex_debug > 2)
1903 printk(KERN_DEBUG "%s: MII transceiver has status %4.4x.\n",
1904 dev->name, mii_status);
1905 if (mii_status & BMSR_LSTATUS) {
Neil Horman106427e2005-11-07 00:58:03 -08001906 int mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907 if (! vp->force_fd && mii_reg5 != 0xffff) {
1908 int duplex;
1909
1910 mii_reg5 &= vp->advertising;
1911 duplex = (mii_reg5&0x0100) || (mii_reg5 & 0x01C0) == 0x0040;
1912 if (vp->full_duplex != duplex) {
1913 vp->full_duplex = duplex;
1914 printk(KERN_INFO "%s: Setting %s-duplex based on MII "
1915 "#%d link partner capability of %4.4x.\n",
1916 dev->name, vp->full_duplex ? "full" : "half",
1917 vp->phys[0], mii_reg5);
1918 /* Set the full-duplex bit. */
1919 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001920 iowrite16( (vp->full_duplex ? 0x20 : 0) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001921 (vp->large_frames ? 0x40 : 0) |
1922 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0),
1923 ioaddr + Wn3_MAC_Ctrl);
1924 if (vortex_debug > 1)
1925 printk(KERN_DEBUG "Setting duplex in Wn3_MAC_Ctrl\n");
1926 /* AKPM: bug: should reset Tx and Rx after setting Duplex. Page 180 */
1927 }
1928 }
1929 netif_carrier_on(dev);
1930 } else {
1931 netif_carrier_off(dev);
1932 }
1933 spin_unlock_bh(&vp->lock);
1934 }
1935 break;
1936 default: /* Other media types handled by Tx timeouts. */
1937 if (vortex_debug > 1)
1938 printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n",
1939 dev->name, media_tbl[dev->if_port].name, media_status);
1940 ok = 1;
1941 }
1942 if ( ! ok) {
1943 unsigned int config;
1944
1945 do {
1946 dev->if_port = media_tbl[dev->if_port].next;
1947 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1948 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1949 dev->if_port = vp->default_media;
1950 if (vortex_debug > 1)
1951 printk(KERN_DEBUG "%s: Media selection failing, using default "
1952 "%s port.\n",
1953 dev->name, media_tbl[dev->if_port].name);
1954 } else {
1955 if (vortex_debug > 1)
1956 printk(KERN_DEBUG "%s: Media selection failed, now trying "
1957 "%s port.\n",
1958 dev->name, media_tbl[dev->if_port].name);
1959 next_tick = media_tbl[dev->if_port].wait;
1960 }
John W. Linville62afe592005-11-07 00:58:02 -08001961 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001962 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1963
1964 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001965 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001966 config = BFINS(config, dev->if_port, 20, 4);
John W. Linville62afe592005-11-07 00:58:02 -08001967 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968
John W. Linville62afe592005-11-07 00:58:02 -08001969 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970 ioaddr + EL3_CMD);
1971 if (vortex_debug > 1)
1972 printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config);
1973 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1974 }
1975 EL3WINDOW(old_window);
1976 enable_irq(dev->irq);
1977
1978leave_media_alone:
1979 if (vortex_debug > 2)
1980 printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n",
1981 dev->name, media_tbl[dev->if_port].name);
1982
1983 mod_timer(&vp->timer, RUN_AT(next_tick));
1984 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001985 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986 return;
1987}
1988
1989static void vortex_tx_timeout(struct net_device *dev)
1990{
1991 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001992 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001993
1994 printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001995 dev->name, ioread8(ioaddr + TxStatus),
1996 ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001997 EL3WINDOW(4);
1998 printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001999 ioread16(ioaddr + Wn4_NetDiag),
2000 ioread16(ioaddr + Wn4_Media),
2001 ioread32(ioaddr + PktStatus),
2002 ioread16(ioaddr + Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002003 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08002004 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005 printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
2006 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002007 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002008 printk(KERN_ERR "%s: Interrupt posted but not delivered --"
2009 " IRQ blocked by another device?\n", dev->name);
2010 /* Bad idea here.. but we might as well handle a few events. */
2011 {
2012 /*
2013 * Block interrupts because vortex_interrupt does a bare spin_lock()
2014 */
2015 unsigned long flags;
2016 local_irq_save(flags);
2017 if (vp->full_bus_master_tx)
2018 boomerang_interrupt(dev->irq, dev, NULL);
2019 else
2020 vortex_interrupt(dev->irq, dev, NULL);
2021 local_irq_restore(flags);
2022 }
2023 }
2024
2025 if (vortex_debug > 0)
2026 dump_tx_ring(dev);
2027
2028 issue_and_wait(dev, TxReset);
2029
2030 vp->stats.tx_errors++;
2031 if (vp->full_bus_master_tx) {
2032 printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08002033 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
2034 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 ioaddr + DownListPtr);
2036 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
2037 netif_wake_queue (dev);
2038 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08002039 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
2040 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041 } else {
2042 vp->stats.tx_dropped++;
2043 netif_wake_queue(dev);
2044 }
2045
2046 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08002047 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048 dev->trans_start = jiffies;
2049
2050 /* Switch to register set 7 for normal use. */
2051 EL3WINDOW(7);
2052}
2053
2054/*
2055 * Handle uncommon interrupt sources. This is a separate routine to minimize
2056 * the cache impact.
2057 */
2058static void
2059vortex_error(struct net_device *dev, int status)
2060{
2061 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002062 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063 int do_tx_reset = 0, reset_mask = 0;
2064 unsigned char tx_status = 0;
2065
2066 if (vortex_debug > 2) {
2067 printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status);
2068 }
2069
2070 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08002071 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 /* Presumably a tx-timeout. We must merely re-enable. */
2073 if (vortex_debug > 2
2074 || (tx_status != 0x88 && vortex_debug > 0)) {
2075 printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n",
2076 dev->name, tx_status);
2077 if (tx_status == 0x82) {
2078 printk(KERN_ERR "Probably a duplex mismatch. See "
2079 "Documentation/networking/vortex.txt\n");
2080 }
2081 dump_tx_ring(dev);
2082 }
2083 if (tx_status & 0x14) vp->stats.tx_fifo_errors++;
2084 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
John W. Linville62afe592005-11-07 00:58:02 -08002085 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086 if (tx_status & 0x30) { /* txJabber or txUnderrun */
2087 do_tx_reset = 1;
2088 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
2089 do_tx_reset = 1;
2090 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
2091 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002092 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093 }
2094 }
2095
2096 if (status & RxEarly) { /* Rx early is unused. */
2097 vortex_rx(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002098 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 }
2100 if (status & StatsFull) { /* Empty statistics. */
2101 static int DoneDidThat;
2102 if (vortex_debug > 4)
2103 printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
2104 update_stats(ioaddr, dev);
2105 /* HACK: Disable statistics as an interrupt source. */
2106 /* This occurs when we have the wrong media type! */
2107 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08002108 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109 printk(KERN_WARNING "%s: Updating statistics failed, disabling "
2110 "stats as an interrupt source.\n", dev->name);
2111 EL3WINDOW(5);
John W. Linville62afe592005-11-07 00:58:02 -08002112 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113 vp->intr_enable &= ~StatsFull;
2114 EL3WINDOW(7);
2115 DoneDidThat++;
2116 }
2117 }
2118 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08002119 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
2120 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 }
2122 if (status & HostError) {
2123 u16 fifo_diag;
2124 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002125 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126 printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
2127 dev->name, fifo_diag);
2128 /* Adapter failure requires Tx/Rx reset and reinit. */
2129 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08002130 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 /* 0x80000000 PCI master abort. */
2132 /* 0x40000000 PCI target abort. */
2133 if (vortex_debug)
2134 printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
2135
2136 /* In this case, blow the card away */
2137 /* Must not enter D3 or we can't legally issue the reset! */
2138 vortex_down(dev, 0);
2139 issue_and_wait(dev, TotalReset | 0xff);
2140 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
2141 } else if (fifo_diag & 0x0400)
2142 do_tx_reset = 1;
2143 if (fifo_diag & 0x3000) {
2144 /* Reset Rx fifo and upload logic */
2145 issue_and_wait(dev, RxReset|0x07);
2146 /* Set the Rx filter to the current state. */
2147 set_rx_mode(dev);
2148 /* enable 802.1q VLAN tagged frames */
2149 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08002150 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2151 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152 }
2153 }
2154
2155 if (do_tx_reset) {
2156 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08002157 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158 if (!vp->full_bus_master_tx)
2159 netif_wake_queue(dev);
2160 }
2161}
2162
2163static int
2164vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2165{
2166 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002167 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168
2169 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002170 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 if (vp->bus_master) {
2172 /* Set the bus-master controller to transfer the packet. */
2173 int len = (skb->len + 3) & ~3;
John W. Linville62afe592005-11-07 00:58:02 -08002174 iowrite32( vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002176 iowrite16(len, ioaddr + Wn7_MasterLen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002178 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179 /* netif_wake_queue() will be called at the DMADone interrupt. */
2180 } else {
2181 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002182 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002184 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185 netif_start_queue (dev); /* AKPM: redundant? */
2186 } else {
2187 /* Interrupt us when the FIFO has room for max-sized packet. */
2188 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002189 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190 }
2191 }
2192
2193 dev->trans_start = jiffies;
2194
2195 /* Clear the Tx status stack. */
2196 {
2197 int tx_status;
2198 int i = 32;
2199
John W. Linville62afe592005-11-07 00:58:02 -08002200 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2202 if (vortex_debug > 2)
2203 printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
2204 dev->name, tx_status);
2205 if (tx_status & 0x04) vp->stats.tx_fifo_errors++;
2206 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
2207 if (tx_status & 0x30) {
2208 issue_and_wait(dev, TxReset);
2209 }
John W. Linville62afe592005-11-07 00:58:02 -08002210 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 }
John W. Linville62afe592005-11-07 00:58:02 -08002212 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 }
2214 }
2215 return 0;
2216}
2217
2218static int
2219boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2220{
2221 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002222 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223 /* Calculate the next Tx descriptor entry. */
2224 int entry = vp->cur_tx % TX_RING_SIZE;
2225 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2226 unsigned long flags;
2227
2228 if (vortex_debug > 6) {
2229 printk(KERN_DEBUG "boomerang_start_xmit()\n");
John W. Linville0f667ff2005-06-21 17:15:14 -07002230 printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
2231 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232 }
2233
2234 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2235 if (vortex_debug > 0)
2236 printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n",
2237 dev->name);
2238 netif_stop_queue(dev);
2239 return 1;
2240 }
2241
2242 vp->tx_skbuff[entry] = skb;
2243
2244 vp->tx_ring[entry].next = 0;
2245#if DO_ZEROCOPY
2246 if (skb->ip_summed != CHECKSUM_HW)
2247 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2248 else
2249 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2250
2251 if (!skb_shinfo(skb)->nr_frags) {
2252 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2253 skb->len, PCI_DMA_TODEVICE));
2254 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2255 } else {
2256 int i;
2257
2258 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2259 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2260 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2261
2262 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2263 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2264
2265 vp->tx_ring[entry].frag[i+1].addr =
2266 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2267 (void*)page_address(frag->page) + frag->page_offset,
2268 frag->size, PCI_DMA_TODEVICE));
2269
2270 if (i == skb_shinfo(skb)->nr_frags-1)
2271 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2272 else
2273 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2274 }
2275 }
2276#else
2277 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2278 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2279 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2280#endif
2281
2282 spin_lock_irqsave(&vp->lock, flags);
2283 /* Wait for the stall to complete. */
2284 issue_and_wait(dev, DownStall);
2285 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002286 if (ioread32(ioaddr + DownListPtr) == 0) {
2287 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288 vp->queued_packet++;
2289 }
2290
2291 vp->cur_tx++;
2292 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2293 netif_stop_queue (dev);
2294 } else { /* Clear previous interrupt enable. */
2295#if defined(tx_interrupt_mitigation)
2296 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2297 * were selected, this would corrupt DN_COMPLETE. No?
2298 */
2299 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2300#endif
2301 }
John W. Linville62afe592005-11-07 00:58:02 -08002302 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303 spin_unlock_irqrestore(&vp->lock, flags);
2304 dev->trans_start = jiffies;
2305 return 0;
2306}
2307
2308/* The interrupt handler does all of the Rx thread work and cleans up
2309 after the Tx thread. */
2310
2311/*
2312 * This is the ISR for the vortex series chips.
2313 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2314 */
2315
2316static irqreturn_t
2317vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2318{
2319 struct net_device *dev = dev_id;
2320 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002321 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322 int status;
2323 int work_done = max_interrupt_work;
2324 int handled = 0;
2325
John W. Linville62afe592005-11-07 00:58:02 -08002326 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327 spin_lock(&vp->lock);
2328
John W. Linville62afe592005-11-07 00:58:02 -08002329 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002330
2331 if (vortex_debug > 6)
2332 printk("vortex_interrupt(). status=0x%4x\n", status);
2333
2334 if ((status & IntLatch) == 0)
2335 goto handler_exit; /* No interrupt: shared IRQs cause this */
2336 handled = 1;
2337
2338 if (status & IntReq) {
2339 status |= vp->deferred;
2340 vp->deferred = 0;
2341 }
2342
2343 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2344 goto handler_exit;
2345
2346 if (vortex_debug > 4)
2347 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002348 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002349
2350 do {
2351 if (vortex_debug > 5)
2352 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2353 dev->name, status);
2354 if (status & RxComplete)
2355 vortex_rx(dev);
2356
2357 if (status & TxAvailable) {
2358 if (vortex_debug > 5)
2359 printk(KERN_DEBUG " TX room bit was handled.\n");
2360 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002361 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002362 netif_wake_queue (dev);
2363 }
2364
2365 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002366 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2367 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002368 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2369 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002370 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371 /*
2372 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2373 * insufficient FIFO room, the TxAvailable test will succeed and call
2374 * netif_wake_queue()
2375 */
2376 netif_wake_queue(dev);
2377 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002378 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002379 netif_stop_queue(dev);
2380 }
2381 }
2382 }
2383 /* Check for all uncommon interrupts at once. */
2384 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2385 if (status == 0xffff)
2386 break;
2387 vortex_error(dev, status);
2388 }
2389
2390 if (--work_done < 0) {
2391 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2392 "%4.4x.\n", dev->name, status);
2393 /* Disable all pending interrupts. */
2394 do {
2395 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002396 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002397 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002398 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2399 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400 /* The timer will reenable interrupts. */
2401 mod_timer(&vp->timer, jiffies + 1*HZ);
2402 break;
2403 }
2404 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002405 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2406 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002407
2408 if (vortex_debug > 4)
2409 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2410 dev->name, status);
2411handler_exit:
2412 spin_unlock(&vp->lock);
2413 return IRQ_RETVAL(handled);
2414}
2415
2416/*
2417 * This is the ISR for the boomerang series chips.
2418 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2419 */
2420
2421static irqreturn_t
2422boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2423{
2424 struct net_device *dev = dev_id;
2425 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002426 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002427 int status;
2428 int work_done = max_interrupt_work;
2429
John W. Linville62afe592005-11-07 00:58:02 -08002430 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002431
2432 /*
2433 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2434 * and boomerang_start_xmit
2435 */
2436 spin_lock(&vp->lock);
2437
John W. Linville62afe592005-11-07 00:58:02 -08002438 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002439
2440 if (vortex_debug > 6)
2441 printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status);
2442
2443 if ((status & IntLatch) == 0)
2444 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2445
2446 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2447 if (vortex_debug > 1)
2448 printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n");
2449 goto handler_exit;
2450 }
2451
2452 if (status & IntReq) {
2453 status |= vp->deferred;
2454 vp->deferred = 0;
2455 }
2456
2457 if (vortex_debug > 4)
2458 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002459 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460 do {
2461 if (vortex_debug > 5)
2462 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2463 dev->name, status);
2464 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002465 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002466 if (vortex_debug > 5)
2467 printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n");
2468 boomerang_rx(dev);
2469 }
2470
2471 if (status & DownComplete) {
2472 unsigned int dirty_tx = vp->dirty_tx;
2473
John W. Linville62afe592005-11-07 00:58:02 -08002474 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002475 while (vp->cur_tx - dirty_tx > 0) {
2476 int entry = dirty_tx % TX_RING_SIZE;
2477#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002478 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002479 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2480 break; /* It still hasn't been processed. */
2481#else
2482 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2483 break; /* It still hasn't been processed. */
2484#endif
2485
2486 if (vp->tx_skbuff[entry]) {
2487 struct sk_buff *skb = vp->tx_skbuff[entry];
2488#if DO_ZEROCOPY
2489 int i;
2490 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2491 pci_unmap_single(VORTEX_PCI(vp),
2492 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2493 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2494 PCI_DMA_TODEVICE);
2495#else
2496 pci_unmap_single(VORTEX_PCI(vp),
2497 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2498#endif
2499 dev_kfree_skb_irq(skb);
2500 vp->tx_skbuff[entry] = NULL;
2501 } else {
2502 printk(KERN_DEBUG "boomerang_interrupt: no skb!\n");
2503 }
2504 /* vp->stats.tx_packets++; Counted below. */
2505 dirty_tx++;
2506 }
2507 vp->dirty_tx = dirty_tx;
2508 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2509 if (vortex_debug > 6)
2510 printk(KERN_DEBUG "boomerang_interrupt: wake queue\n");
2511 netif_wake_queue (dev);
2512 }
2513 }
2514
2515 /* Check for all uncommon interrupts at once. */
2516 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2517 vortex_error(dev, status);
2518
2519 if (--work_done < 0) {
2520 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2521 "%4.4x.\n", dev->name, status);
2522 /* Disable all pending interrupts. */
2523 do {
2524 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002525 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002526 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002527 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2528 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002529 /* The timer will reenable interrupts. */
2530 mod_timer(&vp->timer, jiffies + 1*HZ);
2531 break;
2532 }
2533 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002534 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002535 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002536 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537
John W. Linville62afe592005-11-07 00:58:02 -08002538 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002539
2540 if (vortex_debug > 4)
2541 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2542 dev->name, status);
2543handler_exit:
2544 spin_unlock(&vp->lock);
2545 return IRQ_HANDLED;
2546}
2547
2548static int vortex_rx(struct net_device *dev)
2549{
2550 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002551 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002552 int i;
2553 short rx_status;
2554
2555 if (vortex_debug > 5)
2556 printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002557 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2558 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002560 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002561 if (vortex_debug > 2)
2562 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2563 vp->stats.rx_errors++;
2564 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2565 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2566 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2567 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2568 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2569 } else {
2570 /* The packet length: up to 4.5K!. */
2571 int pkt_len = rx_status & 0x1fff;
2572 struct sk_buff *skb;
2573
2574 skb = dev_alloc_skb(pkt_len + 5);
2575 if (vortex_debug > 4)
2576 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2577 pkt_len, rx_status);
2578 if (skb != NULL) {
2579 skb->dev = dev;
2580 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2581 /* 'skb_put()' points to the start of sk_buff data area. */
2582 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002583 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2585 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002586 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2587 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2588 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2589 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002590 ;
2591 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2592 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002593 ioread32_rep(ioaddr + RX_FIFO,
2594 skb_put(skb, pkt_len),
2595 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002596 }
John W. Linville62afe592005-11-07 00:58:02 -08002597 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598 skb->protocol = eth_type_trans(skb, dev);
2599 netif_rx(skb);
2600 dev->last_rx = jiffies;
2601 vp->stats.rx_packets++;
2602 /* Wait a limited time to go to next packet. */
2603 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002604 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002605 break;
2606 continue;
2607 } else if (vortex_debug > 0)
2608 printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
2609 "size %d.\n", dev->name, pkt_len);
2610 }
2611 vp->stats.rx_dropped++;
2612 issue_and_wait(dev, RxDiscard);
2613 }
2614
2615 return 0;
2616}
2617
2618static int
2619boomerang_rx(struct net_device *dev)
2620{
2621 struct vortex_private *vp = netdev_priv(dev);
2622 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002623 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002624 int rx_status;
2625 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2626
2627 if (vortex_debug > 5)
John W. Linville62afe592005-11-07 00:58:02 -08002628 printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629
2630 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2631 if (--rx_work_limit < 0)
2632 break;
2633 if (rx_status & RxDError) { /* Error, update stats. */
2634 unsigned char rx_error = rx_status >> 16;
2635 if (vortex_debug > 2)
2636 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2637 vp->stats.rx_errors++;
2638 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2639 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2640 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2641 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2642 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2643 } else {
2644 /* The packet length: up to 4.5K!. */
2645 int pkt_len = rx_status & 0x1fff;
2646 struct sk_buff *skb;
2647 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2648
2649 if (vortex_debug > 4)
2650 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2651 pkt_len, rx_status);
2652
2653 /* Check if the packet is long enough to just accept without
2654 copying to a properly sized skbuff. */
2655 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
2656 skb->dev = dev;
2657 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2658 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2659 /* 'skb_put()' points to the start of sk_buff data area. */
2660 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002661 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002662 pkt_len);
2663 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2664 vp->rx_copy++;
2665 } else {
2666 /* Pass up the skbuff already on the Rx ring. */
2667 skb = vp->rx_skbuff[entry];
2668 vp->rx_skbuff[entry] = NULL;
2669 skb_put(skb, pkt_len);
2670 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2671 vp->rx_nocopy++;
2672 }
2673 skb->protocol = eth_type_trans(skb, dev);
2674 { /* Use hardware checksum info. */
2675 int csum_bits = rx_status & 0xee000000;
2676 if (csum_bits &&
2677 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2678 csum_bits == (IPChksumValid | UDPChksumValid))) {
2679 skb->ip_summed = CHECKSUM_UNNECESSARY;
2680 vp->rx_csumhits++;
2681 }
2682 }
2683 netif_rx(skb);
2684 dev->last_rx = jiffies;
2685 vp->stats.rx_packets++;
2686 }
2687 entry = (++vp->cur_rx) % RX_RING_SIZE;
2688 }
2689 /* Refill the Rx ring buffers. */
2690 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2691 struct sk_buff *skb;
2692 entry = vp->dirty_rx % RX_RING_SIZE;
2693 if (vp->rx_skbuff[entry] == NULL) {
2694 skb = dev_alloc_skb(PKT_BUF_SZ);
2695 if (skb == NULL) {
2696 static unsigned long last_jif;
2697 if ((jiffies - last_jif) > 10 * HZ) {
2698 printk(KERN_WARNING "%s: memory shortage\n", dev->name);
2699 last_jif = jiffies;
2700 }
2701 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2702 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2703 break; /* Bad news! */
2704 }
2705 skb->dev = dev; /* Mark as being used by this device. */
2706 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07002707 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 -07002708 vp->rx_skbuff[entry] = skb;
2709 }
2710 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002711 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002712 }
2713 return 0;
2714}
2715
2716/*
2717 * If we've hit a total OOM refilling the Rx ring we poll once a second
2718 * for some memory. Otherwise there is no way to restart the rx process.
2719 */
2720static void
2721rx_oom_timer(unsigned long arg)
2722{
2723 struct net_device *dev = (struct net_device *)arg;
2724 struct vortex_private *vp = netdev_priv(dev);
2725
2726 spin_lock_irq(&vp->lock);
2727 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2728 boomerang_rx(dev);
2729 if (vortex_debug > 1) {
2730 printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name,
2731 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2732 }
2733 spin_unlock_irq(&vp->lock);
2734}
2735
2736static void
2737vortex_down(struct net_device *dev, int final_down)
2738{
2739 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002740 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002741
2742 netif_stop_queue (dev);
2743
2744 del_timer_sync(&vp->rx_oom_timer);
2745 del_timer_sync(&vp->timer);
2746
2747 /* Turn off statistics ASAP. We update vp->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002748 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002749
2750 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002751 iowrite16(RxDisable, ioaddr + EL3_CMD);
2752 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002753
2754 /* Disable receiving 802.1q tagged frames */
2755 set_8021q_mode(dev, 0);
2756
2757 if (dev->if_port == XCVR_10base2)
2758 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002759 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002760
John W. Linville62afe592005-11-07 00:58:02 -08002761 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002762
2763 update_stats(ioaddr, dev);
2764 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002765 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002766 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002767 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002768
2769 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002770 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002771 pci_save_state(VORTEX_PCI(vp));
2772 acpi_set_WOL(dev);
2773 }
2774}
2775
2776static int
2777vortex_close(struct net_device *dev)
2778{
2779 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002780 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002781 int i;
2782
2783 if (netif_device_present(dev))
2784 vortex_down(dev, 1);
2785
2786 if (vortex_debug > 1) {
2787 printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002788 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002789 printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
2790 " tx_queued %d Rx pre-checksummed %d.\n",
2791 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2792 }
2793
2794#if DO_ZEROCOPY
John W. Linville32fb5f02005-11-07 00:58:05 -08002795 if (vp->rx_csumhits &&
2796 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2797 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
2798 printk(KERN_WARNING "%s supports hardware checksums, and we're "
2799 "not using them!\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002800 }
2801#endif
2802
2803 free_irq(dev->irq, dev);
2804
2805 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2806 for (i = 0; i < RX_RING_SIZE; i++)
2807 if (vp->rx_skbuff[i]) {
2808 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2809 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2810 dev_kfree_skb(vp->rx_skbuff[i]);
2811 vp->rx_skbuff[i] = NULL;
2812 }
2813 }
2814 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2815 for (i = 0; i < TX_RING_SIZE; i++) {
2816 if (vp->tx_skbuff[i]) {
2817 struct sk_buff *skb = vp->tx_skbuff[i];
2818#if DO_ZEROCOPY
2819 int k;
2820
2821 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2822 pci_unmap_single(VORTEX_PCI(vp),
2823 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2824 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2825 PCI_DMA_TODEVICE);
2826#else
2827 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2828#endif
2829 dev_kfree_skb(skb);
2830 vp->tx_skbuff[i] = NULL;
2831 }
2832 }
2833 }
2834
2835 return 0;
2836}
2837
2838static void
2839dump_tx_ring(struct net_device *dev)
2840{
2841 if (vortex_debug > 0) {
2842 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002843 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002844
2845 if (vp->full_bus_master_tx) {
2846 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002847 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002848
2849 printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
2850 vp->full_bus_master_tx,
2851 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2852 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
2853 printk(KERN_ERR " Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002854 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002855 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2856 issue_and_wait(dev, DownStall);
2857 for (i = 0; i < TX_RING_SIZE; i++) {
2858 printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i,
2859 &vp->tx_ring[i],
2860#if DO_ZEROCOPY
2861 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2862#else
2863 le32_to_cpu(vp->tx_ring[i].length),
2864#endif
2865 le32_to_cpu(vp->tx_ring[i].status));
2866 }
2867 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002868 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002869 }
2870 }
2871}
2872
2873static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2874{
2875 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002876 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002877 unsigned long flags;
2878
2879 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2880 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002881 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002882 spin_unlock_irqrestore (&vp->lock, flags);
2883 }
2884 return &vp->stats;
2885}
2886
2887/* Update statistics.
2888 Unlike with the EL3 we need not worry about interrupts changing
2889 the window setting from underneath us, but we must still guard
2890 against a race condition with a StatsUpdate interrupt updating the
2891 table. This is done by checking that the ASM (!) code generated uses
2892 atomic updates with '+='.
2893 */
John W. Linville62afe592005-11-07 00:58:02 -08002894static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002895{
2896 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002897 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002898
2899 if (old_window == 0xffff) /* Chip suspended or ejected. */
2900 return;
2901 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2902 /* Switch to the stats window, and read everything. */
2903 EL3WINDOW(6);
John W. Linville62afe592005-11-07 00:58:02 -08002904 vp->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2905 vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
2906 vp->stats.collisions += ioread8(ioaddr + 3);
2907 vp->stats.tx_window_errors += ioread8(ioaddr + 4);
2908 vp->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2909 vp->stats.tx_packets += ioread8(ioaddr + 6);
2910 vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
2911 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002912 /* Don't bother with register 9, an extension of registers 6&7.
2913 If we do use the 6&7 values the atomic update assumption above
2914 is invalid. */
John W. Linville62afe592005-11-07 00:58:02 -08002915 vp->stats.rx_bytes += ioread16(ioaddr + 10);
2916 vp->stats.tx_bytes += ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002917 /* Extra stats for get_ethtool_stats() */
John W. Linville62afe592005-11-07 00:58:02 -08002918 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
2919 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002920 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002921 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002922
2923 {
John W. Linville62afe592005-11-07 00:58:02 -08002924 u8 up = ioread8(ioaddr + 13);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002925 vp->stats.rx_bytes += (up & 0x0f) << 16;
2926 vp->stats.tx_bytes += (up & 0xf0) << 12;
2927 }
2928
2929 EL3WINDOW(old_window >> 13);
2930 return;
2931}
2932
2933static int vortex_nway_reset(struct net_device *dev)
2934{
2935 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002936 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002937 unsigned long flags;
2938 int rc;
2939
2940 spin_lock_irqsave(&vp->lock, flags);
2941 EL3WINDOW(4);
2942 rc = mii_nway_restart(&vp->mii);
2943 spin_unlock_irqrestore(&vp->lock, flags);
2944 return rc;
2945}
2946
2947static u32 vortex_get_link(struct net_device *dev)
2948{
2949 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002950 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002951 unsigned long flags;
2952 int rc;
2953
2954 spin_lock_irqsave(&vp->lock, flags);
2955 EL3WINDOW(4);
2956 rc = mii_link_ok(&vp->mii);
2957 spin_unlock_irqrestore(&vp->lock, flags);
2958 return rc;
2959}
2960
2961static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2962{
2963 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002964 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002965 unsigned long flags;
2966 int rc;
2967
2968 spin_lock_irqsave(&vp->lock, flags);
2969 EL3WINDOW(4);
2970 rc = mii_ethtool_gset(&vp->mii, cmd);
2971 spin_unlock_irqrestore(&vp->lock, flags);
2972 return rc;
2973}
2974
2975static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2976{
2977 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002978 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002979 unsigned long flags;
2980 int rc;
2981
2982 spin_lock_irqsave(&vp->lock, flags);
2983 EL3WINDOW(4);
2984 rc = mii_ethtool_sset(&vp->mii, cmd);
2985 spin_unlock_irqrestore(&vp->lock, flags);
2986 return rc;
2987}
2988
2989static u32 vortex_get_msglevel(struct net_device *dev)
2990{
2991 return vortex_debug;
2992}
2993
2994static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2995{
2996 vortex_debug = dbg;
2997}
2998
2999static int vortex_get_stats_count(struct net_device *dev)
3000{
3001 return VORTEX_NUM_STATS;
3002}
3003
3004static void vortex_get_ethtool_stats(struct net_device *dev,
3005 struct ethtool_stats *stats, u64 *data)
3006{
3007 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003008 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003009 unsigned long flags;
3010
3011 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08003012 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003013 spin_unlock_irqrestore(&vp->lock, flags);
3014
3015 data[0] = vp->xstats.tx_deferred;
3016 data[1] = vp->xstats.tx_multiple_collisions;
3017 data[2] = vp->xstats.rx_bad_ssd;
3018}
3019
3020
3021static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
3022{
3023 switch (stringset) {
3024 case ETH_SS_STATS:
3025 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
3026 break;
3027 default:
3028 WARN_ON(1);
3029 break;
3030 }
3031}
3032
3033static void vortex_get_drvinfo(struct net_device *dev,
3034 struct ethtool_drvinfo *info)
3035{
3036 struct vortex_private *vp = netdev_priv(dev);
3037
3038 strcpy(info->driver, DRV_NAME);
3039 strcpy(info->version, DRV_VERSION);
3040 if (VORTEX_PCI(vp)) {
3041 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
3042 } else {
3043 if (VORTEX_EISA(vp))
3044 sprintf(info->bus_info, vp->gendev->bus_id);
3045 else
3046 sprintf(info->bus_info, "EISA 0x%lx %d",
3047 dev->base_addr, dev->irq);
3048 }
3049}
3050
3051static struct ethtool_ops vortex_ethtool_ops = {
3052 .get_drvinfo = vortex_get_drvinfo,
3053 .get_strings = vortex_get_strings,
3054 .get_msglevel = vortex_get_msglevel,
3055 .set_msglevel = vortex_set_msglevel,
3056 .get_ethtool_stats = vortex_get_ethtool_stats,
3057 .get_stats_count = vortex_get_stats_count,
3058 .get_settings = vortex_get_settings,
3059 .set_settings = vortex_set_settings,
3060 .get_link = vortex_get_link,
3061 .nway_reset = vortex_nway_reset,
3062};
3063
3064#ifdef CONFIG_PCI
3065/*
3066 * Must power the device up to do MDIO operations
3067 */
3068static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3069{
3070 int err;
3071 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003072 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003073 unsigned long flags;
3074 int state = 0;
3075
3076 if(VORTEX_PCI(vp))
3077 state = VORTEX_PCI(vp)->current_state;
3078
3079 /* The kernel core really should have pci_get_power_state() */
3080
3081 if(state != 0)
3082 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
3083 spin_lock_irqsave(&vp->lock, flags);
3084 EL3WINDOW(4);
3085 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
3086 spin_unlock_irqrestore(&vp->lock, flags);
3087 if(state != 0)
3088 pci_set_power_state(VORTEX_PCI(vp), state);
3089
3090 return err;
3091}
3092#endif
3093
3094
3095/* Pre-Cyclone chips have no documented multicast filter, so the only
3096 multicast setting is to receive all multicast frames. At least
3097 the chip has a very clean way to set the mode, unlike many others. */
3098static void set_rx_mode(struct net_device *dev)
3099{
John W. Linville62afe592005-11-07 00:58:02 -08003100 struct vortex_private *vp = netdev_priv(dev);
3101 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003102 int new_mode;
3103
3104 if (dev->flags & IFF_PROMISC) {
3105 if (vortex_debug > 0)
3106 printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
3107 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
3108 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
3109 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
3110 } else
3111 new_mode = SetRxFilter | RxStation | RxBroadcast;
3112
John W. Linville62afe592005-11-07 00:58:02 -08003113 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003114}
3115
3116#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
3117/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
3118 Note that this must be done after each RxReset due to some backwards
3119 compatibility logic in the Cyclone and Tornado ASICs */
3120
3121/* The Ethernet Type used for 802.1q tagged frames */
3122#define VLAN_ETHER_TYPE 0x8100
3123
3124static void set_8021q_mode(struct net_device *dev, int enable)
3125{
3126 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003127 void __iomem *ioaddr = vp->ioaddr;
3128 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003129 int mac_ctrl;
3130
3131 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
3132 /* cyclone and tornado chipsets can recognize 802.1q
3133 * tagged frames and treat them correctly */
3134
3135 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
3136 if (enable)
3137 max_pkt_size += 4; /* 802.1Q VLAN tag */
3138
3139 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003140 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003141
3142 /* set VlanEtherType to let the hardware checksumming
3143 treat tagged frames correctly */
3144 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003145 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003146 } else {
3147 /* on older cards we have to enable large frames */
3148
3149 vp->large_frames = dev->mtu > 1500 || enable;
3150
3151 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003152 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003153 if (vp->large_frames)
3154 mac_ctrl |= 0x40;
3155 else
3156 mac_ctrl &= ~0x40;
John W. Linville62afe592005-11-07 00:58:02 -08003157 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003158 }
3159
3160 EL3WINDOW(old_window);
3161}
3162#else
3163
3164static void set_8021q_mode(struct net_device *dev, int enable)
3165{
3166}
3167
3168
3169#endif
3170
3171/* MII transceiver control section.
3172 Read and write the MII registers using software-generated serial
3173 MDIO protocol. See the MII specifications or DP83840A data sheet
3174 for details. */
3175
3176/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3177 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3178 "overclocking" issues. */
John W. Linville62afe592005-11-07 00:58:02 -08003179#define mdio_delay() ioread32(mdio_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003180
3181#define MDIO_SHIFT_CLK 0x01
3182#define MDIO_DIR_WRITE 0x04
3183#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3184#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3185#define MDIO_DATA_READ 0x02
3186#define MDIO_ENB_IN 0x00
3187
3188/* Generate the preamble required for initial synchronization and
3189 a few older transceivers. */
John W. Linville62afe592005-11-07 00:58:02 -08003190static void mdio_sync(void __iomem *ioaddr, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003191{
John W. Linville62afe592005-11-07 00:58:02 -08003192 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003193
3194 /* Establish sync by sending at least 32 logic ones. */
3195 while (-- bits >= 0) {
John W. Linville62afe592005-11-07 00:58:02 -08003196 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003197 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003198 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003199 mdio_delay();
3200 }
3201}
3202
3203static int mdio_read(struct net_device *dev, int phy_id, int location)
3204{
3205 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003206 struct vortex_private *vp = netdev_priv(dev);
3207 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003208 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3209 unsigned int retval = 0;
John W. Linville62afe592005-11-07 00:58:02 -08003210 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003211
3212 if (mii_preamble_required)
3213 mdio_sync(ioaddr, 32);
3214
3215 /* Shift the read command bits out. */
3216 for (i = 14; i >= 0; i--) {
3217 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003218 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003219 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003220 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003221 mdio_delay();
3222 }
3223 /* Read the two transition, 16 data, and wire-idle bits. */
3224 for (i = 19; i > 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003225 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003226 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003227 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3228 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003229 mdio_delay();
3230 }
3231 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3232}
3233
3234static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3235{
John W. Linville62afe592005-11-07 00:58:02 -08003236 struct vortex_private *vp = netdev_priv(dev);
3237 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003238 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
John W. Linville62afe592005-11-07 00:58:02 -08003239 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003240 int i;
3241
3242 if (mii_preamble_required)
3243 mdio_sync(ioaddr, 32);
3244
3245 /* Shift the command bits out. */
3246 for (i = 31; i >= 0; i--) {
3247 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003248 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003249 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003250 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003251 mdio_delay();
3252 }
3253 /* Leave the interface idle. */
3254 for (i = 1; i >= 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003255 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003256 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003257 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003258 mdio_delay();
3259 }
3260 return;
3261}
3262
3263/* ACPI: Advanced Configuration and Power Interface. */
3264/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3265static void acpi_set_WOL(struct net_device *dev)
3266{
3267 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003268 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003269
3270 if (vp->enable_wol) {
3271 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3272 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003273 iowrite16(2, ioaddr + 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003274 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003275 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3276 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003277
3278 pci_enable_wake(VORTEX_PCI(vp), 0, 1);
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003279
3280 /* Change the power state to D3; RxEnable doesn't take effect. */
3281 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003282 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003283}
3284
3285
3286static void __devexit vortex_remove_one (struct pci_dev *pdev)
3287{
3288 struct net_device *dev = pci_get_drvdata(pdev);
3289 struct vortex_private *vp;
3290
3291 if (!dev) {
3292 printk("vortex_remove_one called for Compaq device!\n");
3293 BUG();
3294 }
3295
3296 vp = netdev_priv(dev);
3297
John W. Linville62afe592005-11-07 00:58:02 -08003298 if (vp->cb_fn_base)
3299 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3300
Linus Torvalds1da177e2005-04-16 15:20:36 -07003301 unregister_netdev(dev);
3302
3303 if (VORTEX_PCI(vp)) {
3304 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3305 if (vp->pm_state_valid)
3306 pci_restore_state(VORTEX_PCI(vp));
3307 pci_disable_device(VORTEX_PCI(vp));
3308 }
3309 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003310 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3311 vp->ioaddr + EL3_CMD);
3312
3313 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003314
3315 pci_free_consistent(pdev,
3316 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3317 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3318 vp->rx_ring,
3319 vp->rx_ring_dma);
3320 if (vp->must_free_region)
3321 release_region(dev->base_addr, vp->io_size);
3322 free_netdev(dev);
3323}
3324
3325
3326static struct pci_driver vortex_driver = {
3327 .name = "3c59x",
3328 .probe = vortex_init_one,
3329 .remove = __devexit_p(vortex_remove_one),
3330 .id_table = vortex_pci_tbl,
3331#ifdef CONFIG_PM
3332 .suspend = vortex_suspend,
3333 .resume = vortex_resume,
3334#endif
3335};
3336
3337
3338static int vortex_have_pci;
3339static int vortex_have_eisa;
3340
3341
3342static int __init vortex_init (void)
3343{
3344 int pci_rc, eisa_rc;
3345
3346 pci_rc = pci_module_init(&vortex_driver);
3347 eisa_rc = vortex_eisa_init();
3348
3349 if (pci_rc == 0)
3350 vortex_have_pci = 1;
3351 if (eisa_rc > 0)
3352 vortex_have_eisa = 1;
3353
3354 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3355}
3356
3357
3358static void __exit vortex_eisa_cleanup (void)
3359{
3360 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003361 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003362
3363#ifdef CONFIG_EISA
3364 /* Take care of the EISA devices */
3365 eisa_driver_unregister (&vortex_eisa_driver);
3366#endif
3367
3368 if (compaq_net_device) {
3369 vp = compaq_net_device->priv;
John W. Linville62afe592005-11-07 00:58:02 -08003370 ioaddr = ioport_map(compaq_net_device->base_addr,
3371 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003372
3373 unregister_netdev (compaq_net_device);
John W. Linville62afe592005-11-07 00:58:02 -08003374 iowrite16 (TotalReset, ioaddr + EL3_CMD);
3375 release_region(compaq_net_device->base_addr,
3376 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003377
3378 free_netdev (compaq_net_device);
3379 }
3380}
3381
3382
3383static void __exit vortex_cleanup (void)
3384{
3385 if (vortex_have_pci)
3386 pci_unregister_driver (&vortex_driver);
3387 if (vortex_have_eisa)
3388 vortex_eisa_cleanup ();
3389}
3390
3391
3392module_init(vortex_init);
3393module_exit(vortex_cleanup);
3394
3395
3396/*
3397 * Local variables:
3398 * c-indent-level: 4
3399 * c-basic-offset: 4
3400 * tab-width: 4
3401 * End:
3402 */