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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
Linus Torvalds1da177e2005-04-16 15:20:36 -070020*/
21
22/*
23 * FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation
24 * as well as other drivers
25 *
26 * NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k
27 * due to dead code elimination. There will be some performance benefits from this due to
28 * elimination of all the tests and reduced cache footprint.
29 */
30
31
32#define DRV_NAME "3c59x"
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
34
35
36/* A few values that may be tweaked. */
37/* Keep the ring sizes a power of two for efficiency. */
38#define TX_RING_SIZE 16
39#define RX_RING_SIZE 32
40#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
41
42/* "Knobs" that adjust features and parameters. */
43/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
44 Setting to > 1512 effectively disables this feature. */
45#ifndef __arm__
46static int rx_copybreak = 200;
47#else
48/* ARM systems perform better by disregarding the bus-master
49 transfer capability of these cards. -- rmk */
50static int rx_copybreak = 1513;
51#endif
52/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
53static const int mtu = 1500;
54/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
55static int max_interrupt_work = 32;
56/* Tx timeout interval (millisecs) */
57static int watchdog = 5000;
58
59/* Allow aggregation of Tx interrupts. Saves CPU load at the cost
60 * of possible Tx stalls if the system is blocking interrupts
61 * somewhere else. Undefine this to disable.
62 */
63#define tx_interrupt_mitigation 1
64
65/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
66#define vortex_debug debug
67#ifdef VORTEX_DEBUG
68static int vortex_debug = VORTEX_DEBUG;
69#else
70static int vortex_debug = 1;
71#endif
72
Linus Torvalds1da177e2005-04-16 15:20:36 -070073#include <linux/module.h>
74#include <linux/kernel.h>
75#include <linux/string.h>
76#include <linux/timer.h>
77#include <linux/errno.h>
78#include <linux/in.h>
79#include <linux/ioport.h>
80#include <linux/slab.h>
81#include <linux/interrupt.h>
82#include <linux/pci.h>
83#include <linux/mii.h>
84#include <linux/init.h>
85#include <linux/netdevice.h>
86#include <linux/etherdevice.h>
87#include <linux/skbuff.h>
88#include <linux/ethtool.h>
89#include <linux/highmem.h>
90#include <linux/eisa.h>
91#include <linux/bitops.h>
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -080092#include <linux/jiffies.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070093#include <asm/irq.h> /* For NR_IRQS only. */
94#include <asm/io.h>
95#include <asm/uaccess.h>
96
97/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
98 This is only in the support-all-kernels source code. */
99
100#define RUN_AT(x) (jiffies + (x))
101
102#include <linux/delay.h>
103
104
105static char version[] __devinitdata =
106DRV_NAME ": Donald Becker and others. www.scyld.com/network/vortex.html\n";
107
108MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
Steffen Klassert61238602006-03-26 01:37:42 -0800109MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver ");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110MODULE_LICENSE("GPL");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111
112
113/* Operational parameter that usually are not changed. */
114
115/* The Vortex size is twice that of the original EtherLinkIII series: the
116 runtime register window, window 1, is now always mapped in.
117 The Boomerang size is twice as large as the Vortex -- it has additional
118 bus master control registers. */
119#define VORTEX_TOTAL_SIZE 0x20
120#define BOOMERANG_TOTAL_SIZE 0x40
121
122/* Set iff a MII transceiver on any interface requires mdio preamble.
123 This only set with the original DP83840 on older 3c905 boards, so the extra
124 code size of a per-interface flag is not worthwhile. */
125static char mii_preamble_required;
126
127#define PFX DRV_NAME ": "
128
129
130
131/*
132 Theory of Operation
133
134I. Board Compatibility
135
136This device driver is designed for the 3Com FastEtherLink and FastEtherLink
137XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
138versions of the FastEtherLink cards. The supported product IDs are
139 3c590, 3c592, 3c595, 3c597, 3c900, 3c905
140
141The related ISA 3c515 is supported with a separate driver, 3c515.c, included
142with the kernel source or available from
143 cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
144
145II. Board-specific settings
146
147PCI bus devices are configured by the system at boot time, so no jumpers
148need to be set on the board. The system BIOS should be set to assign the
149PCI INTA signal to an otherwise unused system IRQ line.
150
151The EEPROM settings for media type and forced-full-duplex are observed.
152The EEPROM media type should be left at the default "autoselect" unless using
15310base2 or AUI connections which cannot be reliably detected.
154
155III. Driver operation
156
157The 3c59x series use an interface that's very similar to the previous 3c5x9
158series. The primary interface is two programmed-I/O FIFOs, with an
159alternate single-contiguous-region bus-master transfer (see next).
160
161The 3c900 "Boomerang" series uses a full-bus-master interface with separate
162lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
163DEC Tulip and Intel Speedo3. The first chip version retains a compatible
164programmed-I/O interface that has been removed in 'B' and subsequent board
165revisions.
166
167One extension that is advertised in a very large font is that the adapters
168are capable of being bus masters. On the Vortex chip this capability was
169only for a single contiguous region making it far less useful than the full
170bus master capability. There is a significant performance impact of taking
171an extra interrupt or polling for the completion of each transfer, as well
172as difficulty sharing the single transfer engine between the transmit and
173receive threads. Using DMA transfers is a win only with large blocks or
174with the flawed versions of the Intel Orion motherboard PCI controller.
175
176The Boomerang chip's full-bus-master interface is useful, and has the
177currently-unused advantages over other similar chips that queued transmit
178packets may be reordered and receive buffer groups are associated with a
179single frame.
180
181With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
182Rather than a fixed intermediate receive buffer, this scheme allocates
183full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
184the copying breakpoint: it is chosen to trade-off the memory wasted by
185passing the full-sized skbuff to the queue layer for all frames vs. the
186copying cost of copying a frame to a correctly-sized skbuff.
187
188IIIC. Synchronization
189The driver runs as two independent, single-threaded flows of control. One
190is the send-packet routine, which enforces single-threaded use by the
191dev->tbusy flag. The other thread is the interrupt handler, which is single
192threaded by the hardware and other software.
193
194IV. Notes
195
196Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
1973c590, 3c595, and 3c900 boards.
198The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
199the EISA version is called "Demon". According to Terry these names come
200from rides at the local amusement park.
201
202The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
203This driver only supports ethernet packets because of the skbuff allocation
204limit of 4K.
205*/
206
207/* This table drives the PCI probe routines. It's mostly boilerplate in all
208 of the drivers, and will likely be provided by some future kernel.
209*/
210enum pci_flags_bit {
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400211 PCI_USES_MASTER=4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212};
213
214enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
215 EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
216 HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
217 INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
218 EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
219 EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
220
221enum vortex_chips {
222 CH_3C590 = 0,
223 CH_3C592,
224 CH_3C597,
225 CH_3C595_1,
226 CH_3C595_2,
227
228 CH_3C595_3,
229 CH_3C900_1,
230 CH_3C900_2,
231 CH_3C900_3,
232 CH_3C900_4,
233
234 CH_3C900_5,
235 CH_3C900B_FL,
236 CH_3C905_1,
237 CH_3C905_2,
238 CH_3C905B_1,
239
240 CH_3C905B_2,
241 CH_3C905B_FX,
242 CH_3C905C,
243 CH_3C9202,
244 CH_3C980,
245 CH_3C9805,
246
247 CH_3CSOHO100_TX,
248 CH_3C555,
249 CH_3C556,
250 CH_3C556B,
251 CH_3C575,
252
253 CH_3C575_1,
254 CH_3CCFE575,
255 CH_3CCFE575CT,
256 CH_3CCFE656,
257 CH_3CCFEM656,
258
259 CH_3CCFEM656_1,
260 CH_3C450,
261 CH_3C920,
262 CH_3C982A,
263 CH_3C982B,
264
265 CH_905BT4,
266 CH_920B_EMB_WNM,
267};
268
269
270/* note: this array directly indexed by above enums, and MUST
271 * be kept in sync with both the enums above, and the PCI device
272 * table below
273 */
274static struct vortex_chip_info {
275 const char *name;
276 int flags;
277 int drv_flags;
278 int io_size;
279} vortex_info_tbl[] __devinitdata = {
280 {"3c590 Vortex 10Mbps",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400281 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400283 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400285 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 {"3c595 Vortex 100baseTx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400287 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 {"3c595 Vortex 100baseT4",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400289 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
291 {"3c595 Vortex 100base-MII",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400292 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 {"3c900 Boomerang 10baseT",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400294 PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 {"3c900 Boomerang 10Mbps Combo",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400296 PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400298 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 {"3c900 Cyclone 10Mbps Combo",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400300 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
302 {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400303 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 {"3c900B-FL Cyclone 10base-FL",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400305 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306 {"3c905 Boomerang 100baseTx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400307 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 {"3c905 Boomerang 100baseT4",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400309 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 {"3c905B Cyclone 100baseTx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400311 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
313 {"3c905B Cyclone 10/100/BNC",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400314 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 {"3c905B-FX Cyclone 100baseFx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400316 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 {"3c905C Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400318 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400320 PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 {"3c980 Cyclone",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400322 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323
324 {"3c980C Python-T",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400325 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 {"3cSOHO100-TX Hurricane",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400327 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 {"3c555 Laptop Hurricane",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400329 PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 {"3c556 Laptop Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400331 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 HAS_HWCKSM, 128, },
333 {"3c556B Laptop Hurricane",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400334 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 WNO_XCVR_PWR|HAS_HWCKSM, 128, },
336
337 {"3c575 [Megahertz] 10/100 LAN CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400338 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 {"3c575 Boomerang CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400340 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 {"3CCFE575BT Cyclone CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400342 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 INVERT_LED_PWR|HAS_HWCKSM, 128, },
344 {"3CCFE575CT Tornado CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400345 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
347 {"3CCFE656 Cyclone CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400348 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 INVERT_LED_PWR|HAS_HWCKSM, 128, },
350
351 {"3CCFEM656B Cyclone+Winmodem CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400352 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 INVERT_LED_PWR|HAS_HWCKSM, 128, },
354 {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400355 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
357 {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400358 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 {"3c920 Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400360 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 {"3c982 Hydra Dual Port A",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400362 PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
364 {"3c982 Hydra Dual Port B",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400365 PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 {"3c905B-T4",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400367 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 {"3c920B-EMB-WNM Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400369 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370
371 {NULL,}, /* NULL terminated list. */
372};
373
374
375static struct pci_device_id vortex_pci_tbl[] = {
376 { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
377 { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
378 { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
379 { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
380 { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
381
382 { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
383 { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
384 { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
385 { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
386 { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
387
388 { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
389 { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
390 { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
391 { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
392 { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
393
394 { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
395 { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
396 { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
397 { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
398 { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
399 { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
400
401 { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
402 { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
403 { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
404 { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
405 { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
406
407 { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
408 { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
409 { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
410 { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
411 { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
412
413 { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
414 { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
415 { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
416 { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
417 { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
418
419 { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
420 { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
421
422 {0,} /* 0 terminated list. */
423};
424MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
425
426
427/* Operational definitions.
428 These are not used by other compilation units and thus are not
429 exported in a ".h" file.
430
431 First the windows. There are eight register windows, with the command
432 and status registers available in each.
433 */
John W. Linville62afe592005-11-07 00:58:02 -0800434#define EL3WINDOW(win_num) iowrite16(SelectWindow + (win_num), ioaddr + EL3_CMD)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435#define EL3_CMD 0x0e
436#define EL3_STATUS 0x0e
437
438/* The top five bits written to EL3_CMD are a command, the lower
439 11 bits are the parameter, if applicable.
440 Note that 11 parameters bits was fine for ethernet, but the new chip
441 can handle FDDI length frames (~4500 octets) and now parameters count
442 32-bit 'Dwords' rather than octets. */
443
444enum vortex_cmd {
445 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
446 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
447 UpStall = 6<<11, UpUnstall = (6<<11)+1,
448 DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
449 RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
450 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
451 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
452 SetTxThreshold = 18<<11, SetTxStart = 19<<11,
453 StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
454 StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
455
456/* The SetRxFilter command accepts the following classes: */
457enum RxFilter {
458 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
459
460/* Bits in the general status register. */
461enum vortex_status {
462 IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
463 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
464 IntReq = 0x0040, StatsFull = 0x0080,
465 DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
466 DMAInProgress = 1<<11, /* DMA controller is still busy.*/
467 CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
468};
469
470/* Register window 1 offsets, the window used in normal operation.
471 On the Vortex this window is always mapped at offsets 0x10-0x1f. */
472enum Window1 {
473 TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
474 RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
475 TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
476};
477enum Window0 {
478 Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
479 Wn0EepromData = 12, /* Window 0: EEPROM results register. */
480 IntrStatus=0x0E, /* Valid in all windows. */
481};
482enum Win0_EEPROM_bits {
483 EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
484 EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
485 EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
486};
487/* EEPROM locations. */
488enum eeprom_offset {
489 PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
490 EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
491 NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
492 DriverTune=13, Checksum=15};
493
494enum Window2 { /* Window 2. */
495 Wn2_ResetOptions=12,
496};
497enum Window3 { /* Window 3: MAC/config bits. */
498 Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8,
499};
500
501#define BFEXT(value, offset, bitcount) \
502 ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
503
504#define BFINS(lhs, rhs, offset, bitcount) \
505 (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \
506 (((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
507
508#define RAM_SIZE(v) BFEXT(v, 0, 3)
509#define RAM_WIDTH(v) BFEXT(v, 3, 1)
510#define RAM_SPEED(v) BFEXT(v, 4, 2)
511#define ROM_SIZE(v) BFEXT(v, 6, 2)
512#define RAM_SPLIT(v) BFEXT(v, 16, 2)
513#define XCVR(v) BFEXT(v, 20, 4)
514#define AUTOSELECT(v) BFEXT(v, 24, 1)
515
516enum Window4 { /* Window 4: Xcvr/media bits. */
517 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
518};
519enum Win4_Media_bits {
520 Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
521 Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
522 Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
523 Media_LnkBeat = 0x0800,
524};
525enum Window7 { /* Window 7: Bus Master control. */
526 Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6,
527 Wn7_MasterStatus = 12,
528};
529/* Boomerang bus master control registers. */
530enum MasterCtrl {
531 PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c,
532 TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38,
533};
534
535/* The Rx and Tx descriptor lists.
536 Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
537 alignment contraint on tx_ring[] and rx_ring[]. */
538#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
539#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
540struct boom_rx_desc {
541 u32 next; /* Last entry points to 0. */
542 s32 status;
543 u32 addr; /* Up to 63 addr/len pairs possible. */
544 s32 length; /* Set LAST_FRAG to indicate last pair. */
545};
546/* Values for the Rx status entry. */
547enum rx_desc_status {
548 RxDComplete=0x00008000, RxDError=0x4000,
549 /* See boomerang_rx() for actual error bits */
550 IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27,
551 IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31,
552};
553
554#ifdef MAX_SKB_FRAGS
555#define DO_ZEROCOPY 1
556#else
557#define DO_ZEROCOPY 0
558#endif
559
560struct boom_tx_desc {
561 u32 next; /* Last entry points to 0. */
562 s32 status; /* bits 0:12 length, others see below. */
563#if DO_ZEROCOPY
564 struct {
565 u32 addr;
566 s32 length;
567 } frag[1+MAX_SKB_FRAGS];
568#else
569 u32 addr;
570 s32 length;
571#endif
572};
573
574/* Values for the Tx status entry. */
575enum tx_desc_status {
576 CRCDisable=0x2000, TxDComplete=0x8000,
577 AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000,
578 TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */
579};
580
581/* Chip features we care about in vp->capabilities, read from the EEPROM. */
582enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 };
583
584struct vortex_extra_stats {
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800585 unsigned long tx_deferred;
586 unsigned long tx_max_collisions;
587 unsigned long tx_multiple_collisions;
588 unsigned long tx_single_collisions;
589 unsigned long rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590};
591
592struct vortex_private {
593 /* The Rx and Tx rings should be quad-word-aligned. */
594 struct boom_rx_desc* rx_ring;
595 struct boom_tx_desc* tx_ring;
596 dma_addr_t rx_ring_dma;
597 dma_addr_t tx_ring_dma;
598 /* The addresses of transmit- and receive-in-place skbuffs. */
599 struct sk_buff* rx_skbuff[RX_RING_SIZE];
600 struct sk_buff* tx_skbuff[TX_RING_SIZE];
601 unsigned int cur_rx, cur_tx; /* The next free ring entry */
602 unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
603 struct net_device_stats stats; /* Generic stats */
604 struct vortex_extra_stats xstats; /* NIC-specific extra stats */
605 struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
606 dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
607
608 /* PCI configuration space information. */
609 struct device *gendev;
John W. Linville62afe592005-11-07 00:58:02 -0800610 void __iomem *ioaddr; /* IO address space */
611 void __iomem *cb_fn_base; /* CardBus function status addr space. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612
613 /* Some values here only for performance evaluation and path-coverage */
614 int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
615 int card_idx;
616
617 /* The remainder are related to chip state, mostly media selection. */
618 struct timer_list timer; /* Media selection timer. */
619 struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
620 int options; /* User-settable misc. driver options. */
621 unsigned int media_override:4, /* Passed-in media type. */
622 default_media:4, /* Read from the EEPROM/Wn3_Config. */
Steffen Klassert09ce3512006-03-31 02:30:48 -0800623 full_duplex:1, autoselect:1,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624 bus_master:1, /* Vortex can only do a fragment bus-m. */
625 full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
626 flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
627 partner_flow_ctrl:1, /* Partner supports flow control */
628 has_nway:1,
629 enable_wol:1, /* Wake-on-LAN is enabled */
630 pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */
631 open:1,
632 medialock:1,
633 must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */
634 large_frames:1; /* accept large frames */
635 int drv_flags;
636 u16 status_enable;
637 u16 intr_enable;
638 u16 available_media; /* From Wn3_Options. */
639 u16 capabilities, info1, info2; /* Various, from EEPROM. */
640 u16 advertising; /* NWay media advertisement */
641 unsigned char phys[2]; /* MII device addresses. */
642 u16 deferred; /* Resend these interrupts when we
643 * bale from the ISR */
644 u16 io_size; /* Size of PCI region (for release_region) */
645 spinlock_t lock; /* Serialise access to device & its vortex_private */
646 struct mii_if_info mii; /* MII lib hooks/info */
647};
648
649#ifdef CONFIG_PCI
650#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
651#else
652#define DEVICE_PCI(dev) NULL
653#endif
654
655#define VORTEX_PCI(vp) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL)
656
657#ifdef CONFIG_EISA
658#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
659#else
660#define DEVICE_EISA(dev) NULL
661#endif
662
663#define VORTEX_EISA(vp) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL)
664
665/* The action to take with a media selection timer tick.
666 Note that we deviate from the 3Com order by checking 10base2 before AUI.
667 */
668enum xcvr_types {
669 XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
670 XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
671};
672
Arjan van de Venf71e1302006-03-03 21:33:57 -0500673static const struct media_table {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 char *name;
675 unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
676 mask:8, /* The transceiver-present bit in Wn3_Config.*/
677 next:8; /* The media type to try next. */
678 int wait; /* Time before we check media status. */
679} media_tbl[] = {
680 { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
681 { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
682 { "undefined", 0, 0x80, XCVR_10baseT, 10000},
683 { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
684 { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
685 { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
686 { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
687 { "undefined", 0, 0x01, XCVR_10baseT, 10000},
688 { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
689 { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
690 { "Default", 0, 0xFF, XCVR_10baseT, 10000},
691};
692
693static struct {
694 const char str[ETH_GSTRING_LEN];
695} ethtool_stats_keys[] = {
696 { "tx_deferred" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800697 { "tx_max_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 { "tx_multiple_collisions" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800699 { "tx_single_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 { "rx_bad_ssd" },
701};
702
703/* number of ETHTOOL_GSTATS u64's */
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800704#define VORTEX_NUM_STATS 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705
John W. Linville62afe592005-11-07 00:58:02 -0800706static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 int chip_idx, int card_idx);
708static void vortex_up(struct net_device *dev);
709static void vortex_down(struct net_device *dev, int final);
710static int vortex_open(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800711static void mdio_sync(void __iomem *ioaddr, int bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712static int mdio_read(struct net_device *dev, int phy_id, int location);
713static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
714static void vortex_timer(unsigned long arg);
715static void rx_oom_timer(unsigned long arg);
716static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev);
717static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev);
718static int vortex_rx(struct net_device *dev);
719static int boomerang_rx(struct net_device *dev);
720static irqreturn_t vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs);
721static irqreturn_t boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs);
722static int vortex_close(struct net_device *dev);
723static void dump_tx_ring(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800724static void update_stats(void __iomem *ioaddr, struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725static struct net_device_stats *vortex_get_stats(struct net_device *dev);
726static void set_rx_mode(struct net_device *dev);
727#ifdef CONFIG_PCI
728static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
729#endif
730static void vortex_tx_timeout(struct net_device *dev);
731static void acpi_set_WOL(struct net_device *dev);
732static struct ethtool_ops vortex_ethtool_ops;
733static void set_8021q_mode(struct net_device *dev, int enable);
734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
736/* Option count limit only -- unlimited interfaces are supported. */
737#define MAX_UNITS 8
John W. Linville9954ab72005-11-07 00:58:06 -0800738static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 };
739static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
740static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
741static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
742static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
John W. Linville900fd172005-11-07 00:58:08 -0800743static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744static int global_options = -1;
745static int global_full_duplex = -1;
746static int global_enable_wol = -1;
John W. Linville900fd172005-11-07 00:58:08 -0800747static int global_use_mmio = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749/* Variables to work-around the Compaq PCI BIOS32 problem. */
750static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
751static struct net_device *compaq_net_device;
752
753static int vortex_cards_found;
754
755module_param(debug, int, 0);
756module_param(global_options, int, 0);
757module_param_array(options, int, NULL, 0);
758module_param(global_full_duplex, int, 0);
759module_param_array(full_duplex, int, NULL, 0);
760module_param_array(hw_checksums, int, NULL, 0);
761module_param_array(flow_ctrl, int, NULL, 0);
762module_param(global_enable_wol, int, 0);
763module_param_array(enable_wol, int, NULL, 0);
764module_param(rx_copybreak, int, 0);
765module_param(max_interrupt_work, int, 0);
766module_param(compaq_ioaddr, int, 0);
767module_param(compaq_irq, int, 0);
768module_param(compaq_device_id, int, 0);
769module_param(watchdog, int, 0);
John W. Linville900fd172005-11-07 00:58:08 -0800770module_param(global_use_mmio, int, 0);
771module_param_array(use_mmio, int, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
773MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
774MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
775MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800776MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if full_duplex is unset");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
778MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
779MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800780MODULE_PARM_DESC(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if enable_wol is unset");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
782MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
783MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
784MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
785MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
786MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
John W. Linville900fd172005-11-07 00:58:08 -0800787MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset");
788MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789
790#ifdef CONFIG_NET_POLL_CONTROLLER
791static void poll_vortex(struct net_device *dev)
792{
793 struct vortex_private *vp = netdev_priv(dev);
794 unsigned long flags;
795 local_save_flags(flags);
796 local_irq_disable();
797 (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev,NULL);
798 local_irq_restore(flags);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400799}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800#endif
801
802#ifdef CONFIG_PM
803
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800804static int vortex_suspend(struct pci_dev *pdev, pm_message_t state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805{
806 struct net_device *dev = pci_get_drvdata(pdev);
807
808 if (dev && dev->priv) {
809 if (netif_running(dev)) {
810 netif_device_detach(dev);
811 vortex_down(dev, 1);
812 }
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700813 pci_save_state(pdev);
814 pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
815 free_irq(dev->irq, dev);
816 pci_disable_device(pdev);
817 pci_set_power_state(pdev, pci_choose_state(pdev, state));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 }
819 return 0;
820}
821
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800822static int vortex_resume(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823{
824 struct net_device *dev = pci_get_drvdata(pdev);
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700825 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700827 if (dev && vp) {
828 pci_set_power_state(pdev, PCI_D0);
829 pci_restore_state(pdev);
830 pci_enable_device(pdev);
831 pci_set_master(pdev);
832 if (request_irq(dev->irq, vp->full_bus_master_rx ?
Thomas Gleixner1fb9df52006-07-01 19:29:39 -0700833 &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev)) {
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700834 printk(KERN_WARNING "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
835 pci_disable_device(pdev);
836 return -EBUSY;
837 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838 if (netif_running(dev)) {
839 vortex_up(dev);
840 netif_device_attach(dev);
841 }
842 }
843 return 0;
844}
845
846#endif /* CONFIG_PM */
847
848#ifdef CONFIG_EISA
849static struct eisa_device_id vortex_eisa_ids[] = {
850 { "TCM5920", CH_3C592 },
851 { "TCM5970", CH_3C597 },
852 { "" }
853};
854
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800855static int vortex_eisa_probe(struct device *device);
856static int vortex_eisa_remove(struct device *device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
858static struct eisa_driver vortex_eisa_driver = {
859 .id_table = vortex_eisa_ids,
860 .driver = {
861 .name = "3c59x",
862 .probe = vortex_eisa_probe,
863 .remove = vortex_eisa_remove
864 }
865};
866
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800867static int vortex_eisa_probe(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868{
John W. Linville62afe592005-11-07 00:58:02 -0800869 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 struct eisa_device *edev;
871
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800872 edev = to_eisa_device(device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873
John W. Linville62afe592005-11-07 00:58:02 -0800874 if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 return -EBUSY;
876
John W. Linville62afe592005-11-07 00:58:02 -0800877 ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
878
879 if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 edev->id.driver_data, vortex_cards_found)) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800881 release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 return -ENODEV;
883 }
884
885 vortex_cards_found++;
886
887 return 0;
888}
889
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800890static int vortex_eisa_remove(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891{
892 struct eisa_device *edev;
893 struct net_device *dev;
894 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -0800895 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800897 edev = to_eisa_device(device);
898 dev = eisa_get_drvdata(edev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
900 if (!dev) {
901 printk("vortex_eisa_remove called for Compaq device!\n");
902 BUG();
903 }
904
905 vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -0800906 ioaddr = vp->ioaddr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400907
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800908 unregister_netdev(dev);
909 iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
910 release_region(dev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800912 free_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913 return 0;
914}
915#endif
916
917/* returns count found (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800918static int __init vortex_eisa_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919{
920 int eisa_found = 0;
921 int orig_cards_found = vortex_cards_found;
922
923#ifdef CONFIG_EISA
Bjorn Helgaasc2f6fab2006-03-25 03:07:19 -0800924 int err;
925
926 err = eisa_driver_register (&vortex_eisa_driver);
927 if (!err) {
928 /*
929 * Because of the way EISA bus is probed, we cannot assume
930 * any device have been found when we exit from
931 * eisa_driver_register (the bus root driver may not be
932 * initialized yet). So we blindly assume something was
933 * found, and let the sysfs magic happend...
934 */
935 eisa_found = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 }
937#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400938
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939 /* Special code to work-around the Compaq PCI BIOS32 problem. */
940 if (compaq_ioaddr) {
John W. Linville62afe592005-11-07 00:58:02 -0800941 vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
942 compaq_irq, compaq_device_id, vortex_cards_found++);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943 }
944
945 return vortex_cards_found - orig_cards_found + eisa_found;
946}
947
948/* returns count (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800949static int __devinit vortex_init_one(struct pci_dev *pdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950 const struct pci_device_id *ent)
951{
John W. Linville900fd172005-11-07 00:58:08 -0800952 int rc, unit, pci_bar;
953 struct vortex_chip_info *vci;
954 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400956 /* wake up and enable device */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800957 rc = pci_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 if (rc < 0)
959 goto out;
960
John W. Linville900fd172005-11-07 00:58:08 -0800961 unit = vortex_cards_found;
962
963 if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
964 /* Determine the default if the user didn't override us */
965 vci = &vortex_info_tbl[ent->driver_data];
966 pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0;
967 } else if (unit < MAX_UNITS && use_mmio[unit] >= 0)
968 pci_bar = use_mmio[unit] ? 1 : 0;
969 else
970 pci_bar = global_use_mmio ? 1 : 0;
971
972 ioaddr = pci_iomap(pdev, pci_bar, 0);
973 if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
974 ioaddr = pci_iomap(pdev, 0, 0);
975
976 rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
977 ent->driver_data, unit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978 if (rc < 0) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800979 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980 goto out;
981 }
982
983 vortex_cards_found++;
984
985out:
986 return rc;
987}
988
989/*
990 * Start up the PCI/EISA device which is described by *gendev.
991 * Return 0 on success.
992 *
993 * NOTE: pdev can be NULL, for the case of a Compaq device
994 */
995static int __devinit vortex_probe1(struct device *gendev,
John W. Linville62afe592005-11-07 00:58:02 -0800996 void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 int chip_idx, int card_idx)
998{
999 struct vortex_private *vp;
1000 int option;
1001 unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
1002 int i, step;
1003 struct net_device *dev;
1004 static int printed_version;
1005 int retval, print_info;
1006 struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
1007 char *print_name = "3c59x";
1008 struct pci_dev *pdev = NULL;
1009 struct eisa_device *edev = NULL;
1010
1011 if (!printed_version) {
1012 printk (version);
1013 printed_version = 1;
1014 }
1015
1016 if (gendev) {
1017 if ((pdev = DEVICE_PCI(gendev))) {
1018 print_name = pci_name(pdev);
1019 }
1020
1021 if ((edev = DEVICE_EISA(gendev))) {
1022 print_name = edev->dev.bus_id;
1023 }
1024 }
1025
1026 dev = alloc_etherdev(sizeof(*vp));
1027 retval = -ENOMEM;
1028 if (!dev) {
1029 printk (KERN_ERR PFX "unable to allocate etherdev, aborting\n");
1030 goto out;
1031 }
1032 SET_MODULE_OWNER(dev);
1033 SET_NETDEV_DEV(dev, gendev);
1034 vp = netdev_priv(dev);
1035
1036 option = global_options;
1037
1038 /* The lower four bits are the media type. */
1039 if (dev->mem_start) {
1040 /*
1041 * The 'options' param is passed in as the third arg to the
1042 * LILO 'ether=' argument for non-modular use
1043 */
1044 option = dev->mem_start;
1045 }
1046 else if (card_idx < MAX_UNITS) {
1047 if (options[card_idx] >= 0)
1048 option = options[card_idx];
1049 }
1050
1051 if (option > 0) {
1052 if (option & 0x8000)
1053 vortex_debug = 7;
1054 if (option & 0x4000)
1055 vortex_debug = 2;
1056 if (option & 0x0400)
1057 vp->enable_wol = 1;
1058 }
1059
1060 print_info = (vortex_debug > 1);
1061 if (print_info)
1062 printk (KERN_INFO "See Documentation/networking/vortex.txt\n");
1063
Steffen Klassert61238602006-03-26 01:37:42 -08001064 printk(KERN_INFO "%s: 3Com %s %s at %p.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 print_name,
1066 pdev ? "PCI" : "EISA",
1067 vci->name,
1068 ioaddr);
1069
John W. Linville62afe592005-11-07 00:58:02 -08001070 dev->base_addr = (unsigned long)ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071 dev->irq = irq;
1072 dev->mtu = mtu;
John W. Linville62afe592005-11-07 00:58:02 -08001073 vp->ioaddr = ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 vp->large_frames = mtu > 1500;
1075 vp->drv_flags = vci->drv_flags;
1076 vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
1077 vp->io_size = vci->io_size;
1078 vp->card_idx = card_idx;
1079
1080 /* module list only for Compaq device */
1081 if (gendev == NULL) {
1082 compaq_net_device = dev;
1083 }
1084
1085 /* PCI-only startup logic */
1086 if (pdev) {
1087 /* EISA resources already marked, so only PCI needs to do this here */
1088 /* Ignore return value, because Cardbus drivers already allocate for us */
John W. Linville62afe592005-11-07 00:58:02 -08001089 if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 vp->must_free_region = 1;
1091
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001092 /* enable bus-mastering if necessary */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093 if (vci->flags & PCI_USES_MASTER)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001094 pci_set_master(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
1096 if (vci->drv_flags & IS_VORTEX) {
1097 u8 pci_latency;
1098 u8 new_latency = 248;
1099
1100 /* Check the PCI latency value. On the 3c590 series the latency timer
1101 must be set to the maximum value to avoid data corruption that occurs
1102 when the timer expires during a transfer. This bug exists the Vortex
1103 chip only. */
1104 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
1105 if (pci_latency < new_latency) {
1106 printk(KERN_INFO "%s: Overriding PCI latency"
1107 " timer (CFLT) setting of %d, new value is %d.\n",
1108 print_name, pci_latency, new_latency);
1109 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
1110 }
1111 }
1112 }
1113
1114 spin_lock_init(&vp->lock);
1115 vp->gendev = gendev;
1116 vp->mii.dev = dev;
1117 vp->mii.mdio_read = mdio_read;
1118 vp->mii.mdio_write = mdio_write;
1119 vp->mii.phy_id_mask = 0x1f;
1120 vp->mii.reg_num_mask = 0x1f;
1121
1122 /* Makes sure rings are at least 16 byte aligned. */
1123 vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
1124 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1125 &vp->rx_ring_dma);
1126 retval = -ENOMEM;
1127 if (vp->rx_ring == 0)
1128 goto free_region;
1129
1130 vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
1131 vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
1132
1133 /* if we are a PCI driver, we store info in pdev->driver_data
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001134 * instead of a module list */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135 if (pdev)
1136 pci_set_drvdata(pdev, dev);
1137 if (edev)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001138 eisa_set_drvdata(edev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139
1140 vp->media_override = 7;
1141 if (option >= 0) {
1142 vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
1143 if (vp->media_override != 7)
1144 vp->medialock = 1;
1145 vp->full_duplex = (option & 0x200) ? 1 : 0;
1146 vp->bus_master = (option & 16) ? 1 : 0;
1147 }
1148
1149 if (global_full_duplex > 0)
1150 vp->full_duplex = 1;
1151 if (global_enable_wol > 0)
1152 vp->enable_wol = 1;
1153
1154 if (card_idx < MAX_UNITS) {
1155 if (full_duplex[card_idx] > 0)
1156 vp->full_duplex = 1;
1157 if (flow_ctrl[card_idx] > 0)
1158 vp->flow_ctrl = 1;
1159 if (enable_wol[card_idx] > 0)
1160 vp->enable_wol = 1;
1161 }
1162
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001163 vp->mii.force_media = vp->full_duplex;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 vp->options = option;
1165 /* Read the station address from the EEPROM. */
1166 EL3WINDOW(0);
1167 {
1168 int base;
1169
1170 if (vci->drv_flags & EEPROM_8BIT)
1171 base = 0x230;
1172 else if (vci->drv_flags & EEPROM_OFFSET)
1173 base = EEPROM_Read + 0x30;
1174 else
1175 base = EEPROM_Read;
1176
1177 for (i = 0; i < 0x40; i++) {
1178 int timer;
John W. Linville62afe592005-11-07 00:58:02 -08001179 iowrite16(base + i, ioaddr + Wn0EepromCmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 /* Pause for at least 162 us. for the read to take place. */
1181 for (timer = 10; timer >= 0; timer--) {
1182 udelay(162);
John W. Linville62afe592005-11-07 00:58:02 -08001183 if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 break;
1185 }
John W. Linville62afe592005-11-07 00:58:02 -08001186 eeprom[i] = ioread16(ioaddr + Wn0EepromData);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187 }
1188 }
1189 for (i = 0; i < 0x18; i++)
1190 checksum ^= eeprom[i];
1191 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1192 if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
1193 while (i < 0x21)
1194 checksum ^= eeprom[i++];
1195 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1196 }
1197 if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO))
1198 printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
1199 for (i = 0; i < 3; i++)
1200 ((u16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
John W. Linvillebb531fc2005-11-07 00:58:07 -08001201 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 if (print_info) {
1203 for (i = 0; i < 6; i++)
1204 printk("%c%2.2x", i ? ':' : ' ', dev->dev_addr[i]);
1205 }
1206 /* Unfortunately an all zero eeprom passes the checksum and this
1207 gets found in the wild in failure cases. Crypto is hard 8) */
1208 if (!is_valid_ether_addr(dev->dev_addr)) {
1209 retval = -EINVAL;
1210 printk(KERN_ERR "*** EEPROM MAC address is invalid.\n");
1211 goto free_ring; /* With every pack */
1212 }
1213 EL3WINDOW(2);
1214 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001215 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 if (print_info)
1218 printk(", IRQ %d\n", dev->irq);
1219 /* Tell them about an invalid IRQ. */
1220 if (dev->irq <= 0 || dev->irq >= NR_IRQS)
1221 printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***\n",
1222 dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223
1224 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001225 step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 if (print_info) {
1227 printk(KERN_INFO " product code %02x%02x rev %02x.%d date %02d-"
1228 "%02d-%02d\n", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
1229 step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
1230 }
1231
1232
1233 if (pdev && vci->drv_flags & HAS_CB_FNS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234 unsigned short n;
1235
John W. Linville62afe592005-11-07 00:58:02 -08001236 vp->cb_fn_base = pci_iomap(pdev, 2, 0);
1237 if (!vp->cb_fn_base) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238 retval = -ENOMEM;
John W. Linville62afe592005-11-07 00:58:02 -08001239 goto free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240 }
John W. Linville62afe592005-11-07 00:58:02 -08001241
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 if (print_info) {
Greg Kroah-Hartman7c7459d2006-06-12 15:13:08 -07001243 printk(KERN_INFO "%s: CardBus functions mapped "
1244 "%16.16llx->%p\n",
1245 print_name,
1246 (unsigned long long)pci_resource_start(pdev, 2),
John W. Linville62afe592005-11-07 00:58:02 -08001247 vp->cb_fn_base);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 }
1249 EL3WINDOW(2);
1250
John W. Linville62afe592005-11-07 00:58:02 -08001251 n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 if (vp->drv_flags & INVERT_LED_PWR)
1253 n |= 0x10;
1254 if (vp->drv_flags & INVERT_MII_PWR)
1255 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001256 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257 if (vp->drv_flags & WNO_XCVR_PWR) {
1258 EL3WINDOW(0);
John W. Linville62afe592005-11-07 00:58:02 -08001259 iowrite16(0x0800, ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 }
1261 }
1262
1263 /* Extract our information from the EEPROM data. */
1264 vp->info1 = eeprom[13];
1265 vp->info2 = eeprom[15];
1266 vp->capabilities = eeprom[16];
1267
1268 if (vp->info1 & 0x8000) {
1269 vp->full_duplex = 1;
1270 if (print_info)
1271 printk(KERN_INFO "Full duplex capable\n");
1272 }
1273
1274 {
Arjan van de Venf71e1302006-03-03 21:33:57 -05001275 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 unsigned int config;
1277 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001278 vp->available_media = ioread16(ioaddr + Wn3_Options);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279 if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
1280 vp->available_media = 0x40;
John W. Linville62afe592005-11-07 00:58:02 -08001281 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 if (print_info) {
1283 printk(KERN_DEBUG " Internal config register is %4.4x, "
John W. Linville62afe592005-11-07 00:58:02 -08001284 "transceivers %#x.\n", config, ioread16(ioaddr + Wn3_Options));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
1286 8 << RAM_SIZE(config),
1287 RAM_WIDTH(config) ? "word" : "byte",
1288 ram_split[RAM_SPLIT(config)],
1289 AUTOSELECT(config) ? "autoselect/" : "",
1290 XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
1291 media_tbl[XCVR(config)].name);
1292 }
1293 vp->default_media = XCVR(config);
1294 if (vp->default_media == XCVR_NWAY)
1295 vp->has_nway = 1;
1296 vp->autoselect = AUTOSELECT(config);
1297 }
1298
1299 if (vp->media_override != 7) {
1300 printk(KERN_INFO "%s: Media override to transceiver type %d (%s).\n",
1301 print_name, vp->media_override,
1302 media_tbl[vp->media_override].name);
1303 dev->if_port = vp->media_override;
1304 } else
1305 dev->if_port = vp->default_media;
1306
1307 if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
1308 dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1309 int phy, phy_idx = 0;
1310 EL3WINDOW(4);
1311 mii_preamble_required++;
1312 if (vp->drv_flags & EXTRA_PREAMBLE)
1313 mii_preamble_required++;
1314 mdio_sync(ioaddr, 32);
Neil Horman106427e2005-11-07 00:58:03 -08001315 mdio_read(dev, 24, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
1317 int mii_status, phyx;
1318
1319 /*
1320 * For the 3c905CX we look at index 24 first, because it bogusly
1321 * reports an external PHY at all indices
1322 */
1323 if (phy == 0)
1324 phyx = 24;
1325 else if (phy <= 24)
1326 phyx = phy - 1;
1327 else
1328 phyx = phy;
Neil Horman106427e2005-11-07 00:58:03 -08001329 mii_status = mdio_read(dev, phyx, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 if (mii_status && mii_status != 0xffff) {
1331 vp->phys[phy_idx++] = phyx;
1332 if (print_info) {
1333 printk(KERN_INFO " MII transceiver found at address %d,"
1334 " status %4x.\n", phyx, mii_status);
1335 }
1336 if ((mii_status & 0x0040) == 0)
1337 mii_preamble_required++;
1338 }
1339 }
1340 mii_preamble_required--;
1341 if (phy_idx == 0) {
1342 printk(KERN_WARNING" ***WARNING*** No MII transceivers found!\n");
1343 vp->phys[0] = 24;
1344 } else {
Neil Horman106427e2005-11-07 00:58:03 -08001345 vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 if (vp->full_duplex) {
1347 /* Only advertise the FD media types. */
1348 vp->advertising &= ~0x02A0;
1349 mdio_write(dev, vp->phys[0], 4, vp->advertising);
1350 }
1351 }
1352 vp->mii.phy_id = vp->phys[0];
1353 }
1354
1355 if (vp->capabilities & CapBusMaster) {
1356 vp->full_bus_master_tx = 1;
1357 if (print_info) {
1358 printk(KERN_INFO " Enabling bus-master transmits and %s receives.\n",
1359 (vp->info2 & 1) ? "early" : "whole-frame" );
1360 }
1361 vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
1362 vp->bus_master = 0; /* AKPM: vortex only */
1363 }
1364
1365 /* The 3c59x-specific entries in the device structure. */
1366 dev->open = vortex_open;
1367 if (vp->full_bus_master_tx) {
1368 dev->hard_start_xmit = boomerang_start_xmit;
1369 /* Actually, it still should work with iommu. */
John W. Linville32fb5f02005-11-07 00:58:05 -08001370 if (card_idx < MAX_UNITS &&
1371 ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
1372 hw_checksums[card_idx] == 1)) {
Stephen Hemmingerd311b0d2005-11-07 00:58:09 -08001373 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374 }
1375 } else {
1376 dev->hard_start_xmit = vortex_start_xmit;
1377 }
1378
1379 if (print_info) {
1380 printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabled\n",
1381 print_name,
1382 (dev->features & NETIF_F_SG) ? "en":"dis",
1383 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1384 }
1385
1386 dev->stop = vortex_close;
1387 dev->get_stats = vortex_get_stats;
1388#ifdef CONFIG_PCI
1389 dev->do_ioctl = vortex_ioctl;
1390#endif
1391 dev->ethtool_ops = &vortex_ethtool_ops;
1392 dev->set_multicast_list = set_rx_mode;
1393 dev->tx_timeout = vortex_tx_timeout;
1394 dev->watchdog_timeo = (watchdog * HZ) / 1000;
1395#ifdef CONFIG_NET_POLL_CONTROLLER
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001396 dev->poll_controller = poll_vortex;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397#endif
1398 if (pdev) {
1399 vp->pm_state_valid = 1;
1400 pci_save_state(VORTEX_PCI(vp));
1401 acpi_set_WOL(dev);
1402 }
1403 retval = register_netdev(dev);
1404 if (retval == 0)
1405 return 0;
1406
1407free_ring:
1408 pci_free_consistent(pdev,
1409 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1410 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1411 vp->rx_ring,
1412 vp->rx_ring_dma);
1413free_region:
1414 if (vp->must_free_region)
John W. Linville62afe592005-11-07 00:58:02 -08001415 release_region(dev->base_addr, vci->io_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 free_netdev(dev);
1417 printk(KERN_ERR PFX "vortex_probe1 fails. Returns %d\n", retval);
1418out:
1419 return retval;
1420}
1421
1422static void
1423issue_and_wait(struct net_device *dev, int cmd)
1424{
John W. Linville62afe592005-11-07 00:58:02 -08001425 struct vortex_private *vp = netdev_priv(dev);
1426 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 int i;
1428
John W. Linville62afe592005-11-07 00:58:02 -08001429 iowrite16(cmd, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 for (i = 0; i < 2000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001431 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 return;
1433 }
1434
1435 /* OK, that didn't work. Do it the slow way. One second */
1436 for (i = 0; i < 100000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001437 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 if (vortex_debug > 1)
1439 printk(KERN_INFO "%s: command 0x%04x took %d usecs\n",
1440 dev->name, cmd, i * 10);
1441 return;
1442 }
1443 udelay(10);
1444 }
1445 printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001446 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447}
1448
1449static void
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001450vortex_set_duplex(struct net_device *dev)
1451{
1452 struct vortex_private *vp = netdev_priv(dev);
1453 void __iomem *ioaddr = vp->ioaddr;
1454
1455 printk(KERN_INFO "%s: setting %s-duplex.\n",
1456 dev->name, (vp->full_duplex) ? "full" : "half");
1457
1458 EL3WINDOW(3);
1459 /* Set the full-duplex bit. */
1460 iowrite16(((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
1461 (vp->large_frames ? 0x40 : 0) |
1462 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
1463 0x100 : 0),
1464 ioaddr + Wn3_MAC_Ctrl);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001465}
1466
1467static void vortex_check_media(struct net_device *dev, unsigned int init)
1468{
1469 struct vortex_private *vp = netdev_priv(dev);
1470 unsigned int ok_to_print = 0;
1471
1472 if (vortex_debug > 3)
1473 ok_to_print = 1;
1474
1475 if (mii_check_media(&vp->mii, ok_to_print, init)) {
1476 vp->full_duplex = vp->mii.full_duplex;
1477 vortex_set_duplex(dev);
1478 } else if (init) {
1479 vortex_set_duplex(dev);
1480 }
1481}
1482
1483static void
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484vortex_up(struct net_device *dev)
1485{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001487 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488 unsigned int config;
Steffen Klassert09ce3512006-03-31 02:30:48 -08001489 int i, mii_reg1, mii_reg5;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490
1491 if (VORTEX_PCI(vp)) {
1492 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001493 if (vp->pm_state_valid)
1494 pci_restore_state(VORTEX_PCI(vp));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495 pci_enable_device(VORTEX_PCI(vp));
1496 }
1497
1498 /* Before initializing select the active media port. */
1499 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001500 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501
1502 if (vp->media_override != 7) {
1503 printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
1504 dev->name, vp->media_override,
1505 media_tbl[vp->media_override].name);
1506 dev->if_port = vp->media_override;
1507 } else if (vp->autoselect) {
1508 if (vp->has_nway) {
1509 if (vortex_debug > 1)
1510 printk(KERN_INFO "%s: using NWAY device table, not %d\n",
1511 dev->name, dev->if_port);
1512 dev->if_port = XCVR_NWAY;
1513 } else {
1514 /* Find first available media type, starting with 100baseTx. */
1515 dev->if_port = XCVR_100baseTx;
1516 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1517 dev->if_port = media_tbl[dev->if_port].next;
1518 if (vortex_debug > 1)
1519 printk(KERN_INFO "%s: first available media type: %s\n",
1520 dev->name, media_tbl[dev->if_port].name);
1521 }
1522 } else {
1523 dev->if_port = vp->default_media;
1524 if (vortex_debug > 1)
1525 printk(KERN_INFO "%s: using default media %s\n",
1526 dev->name, media_tbl[dev->if_port].name);
1527 }
1528
1529 init_timer(&vp->timer);
1530 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1531 vp->timer.data = (unsigned long)dev;
1532 vp->timer.function = vortex_timer; /* timer handler */
1533 add_timer(&vp->timer);
1534
1535 init_timer(&vp->rx_oom_timer);
1536 vp->rx_oom_timer.data = (unsigned long)dev;
1537 vp->rx_oom_timer.function = rx_oom_timer;
1538
1539 if (vortex_debug > 1)
1540 printk(KERN_DEBUG "%s: Initial media type %s.\n",
1541 dev->name, media_tbl[dev->if_port].name);
1542
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001543 vp->full_duplex = vp->mii.force_media;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544 config = BFINS(config, dev->if_port, 20, 4);
1545 if (vortex_debug > 6)
1546 printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
John W. Linville62afe592005-11-07 00:58:02 -08001547 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548
1549 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550 EL3WINDOW(4);
Steffen Klassert09ce3512006-03-31 02:30:48 -08001551 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1552 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
1553 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
1554
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001555 vortex_check_media(dev, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556 }
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001557 else
1558 vortex_set_duplex(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559
Steffen Klassert09ce3512006-03-31 02:30:48 -08001560 issue_and_wait(dev, TxReset);
1561 /*
1562 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1563 */
1564 issue_and_wait(dev, RxReset|0x04);
1565
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566
John W. Linville62afe592005-11-07 00:58:02 -08001567 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568
1569 if (vortex_debug > 1) {
1570 EL3WINDOW(4);
1571 printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001572 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001573 }
1574
1575 /* Set the station address and mask in window 2 each time opened. */
1576 EL3WINDOW(2);
1577 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001578 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001579 for (; i < 12; i+=2)
John W. Linville62afe592005-11-07 00:58:02 -08001580 iowrite16(0, ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001581
1582 if (vp->cb_fn_base) {
John W. Linville62afe592005-11-07 00:58:02 -08001583 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584 if (vp->drv_flags & INVERT_LED_PWR)
1585 n |= 0x10;
1586 if (vp->drv_flags & INVERT_MII_PWR)
1587 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001588 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589 }
1590
1591 if (dev->if_port == XCVR_10base2)
1592 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001593 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594 if (dev->if_port != XCVR_NWAY) {
1595 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001596 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1598 }
1599
1600 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001601 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602 EL3WINDOW(6);
1603 for (i = 0; i < 10; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001604 ioread8(ioaddr + i);
1605 ioread16(ioaddr + 10);
1606 ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 /* New: On the Vortex we must also clear the BadSSD counter. */
1608 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001609 ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610 /* ..and on the Boomerang we enable the extra statistics bits. */
John W. Linville62afe592005-11-07 00:58:02 -08001611 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001612
1613 /* Switch to register set 7 for normal use. */
1614 EL3WINDOW(7);
1615
1616 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1617 vp->cur_rx = vp->dirty_rx = 0;
1618 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001619 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1620 iowrite32(0x0020, ioaddr + PktStatus);
1621 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001622 }
1623 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1624 vp->cur_tx = vp->dirty_tx = 0;
1625 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001626 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627 /* Clear the Rx, Tx rings. */
1628 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1629 vp->rx_ring[i].status = 0;
1630 for (i = 0; i < TX_RING_SIZE; i++)
1631 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001632 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001633 }
1634 /* Set receiver mode: presumably accept b-case and phys addr only. */
1635 set_rx_mode(dev);
1636 /* enable 802.1q tagged frames */
1637 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001638 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639
John W. Linville62afe592005-11-07 00:58:02 -08001640 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1641 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642 /* Allow status bits to be seen. */
1643 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1644 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1645 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1646 (vp->bus_master ? DMADone : 0);
1647 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1648 (vp->full_bus_master_rx ? 0 : RxComplete) |
1649 StatsFull | HostError | TxComplete | IntReq
1650 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001651 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001652 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001653 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001655 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001657 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658 netif_start_queue (dev);
1659}
1660
1661static int
1662vortex_open(struct net_device *dev)
1663{
1664 struct vortex_private *vp = netdev_priv(dev);
1665 int i;
1666 int retval;
1667
1668 /* Use the now-standard shared IRQ implementation. */
1669 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
Thomas Gleixner1fb9df52006-07-01 19:29:39 -07001670 &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001671 printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
1672 goto out;
1673 }
1674
1675 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1676 if (vortex_debug > 2)
1677 printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
1678 for (i = 0; i < RX_RING_SIZE; i++) {
1679 struct sk_buff *skb;
1680 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1681 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1682 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
1683 skb = dev_alloc_skb(PKT_BUF_SZ);
1684 vp->rx_skbuff[i] = skb;
1685 if (skb == NULL)
1686 break; /* Bad news! */
1687 skb->dev = dev; /* Mark as being used by this device. */
1688 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001689 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 -07001690 }
1691 if (i != RX_RING_SIZE) {
1692 int j;
1693 printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
1694 for (j = 0; j < i; j++) {
1695 if (vp->rx_skbuff[j]) {
1696 dev_kfree_skb(vp->rx_skbuff[j]);
1697 vp->rx_skbuff[j] = NULL;
1698 }
1699 }
1700 retval = -ENOMEM;
1701 goto out_free_irq;
1702 }
1703 /* Wrap the ring. */
1704 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1705 }
1706
1707 vortex_up(dev);
1708 return 0;
1709
1710out_free_irq:
1711 free_irq(dev->irq, dev);
1712out:
1713 if (vortex_debug > 1)
1714 printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval);
1715 return retval;
1716}
1717
1718static void
1719vortex_timer(unsigned long data)
1720{
1721 struct net_device *dev = (struct net_device *)data;
1722 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001723 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 int next_tick = 60*HZ;
1725 int ok = 0;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001726 int media_status, old_window;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727
1728 if (vortex_debug > 2) {
1729 printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
1730 dev->name, media_tbl[dev->if_port].name);
1731 printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
1732 }
1733
Ingo Molnar0a9da4b2006-07-03 00:25:24 -07001734 disable_irq_lockdep(dev->irq);
John W. Linville62afe592005-11-07 00:58:02 -08001735 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001737 media_status = ioread16(ioaddr + Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 switch (dev->if_port) {
1739 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1740 if (media_status & Media_LnkBeat) {
1741 netif_carrier_on(dev);
1742 ok = 1;
1743 if (vortex_debug > 1)
1744 printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
1745 dev->name, media_tbl[dev->if_port].name, media_status);
1746 } else {
1747 netif_carrier_off(dev);
1748 if (vortex_debug > 1) {
1749 printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n",
1750 dev->name, media_tbl[dev->if_port].name, media_status);
1751 }
1752 }
1753 break;
1754 case XCVR_MII: case XCVR_NWAY:
1755 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001756 ok = 1;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001757 spin_lock_bh(&vp->lock);
1758 vortex_check_media(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001759 spin_unlock_bh(&vp->lock);
1760 }
1761 break;
1762 default: /* Other media types handled by Tx timeouts. */
1763 if (vortex_debug > 1)
1764 printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n",
1765 dev->name, media_tbl[dev->if_port].name, media_status);
1766 ok = 1;
1767 }
Steffen Klassertb4ff6452006-03-26 01:37:40 -08001768
1769 if (!netif_carrier_ok(dev))
1770 next_tick = 5*HZ;
1771
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001772 if (vp->medialock)
1773 goto leave_media_alone;
1774
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001775 if (!ok) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 unsigned int config;
1777
1778 do {
1779 dev->if_port = media_tbl[dev->if_port].next;
1780 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1781 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1782 dev->if_port = vp->default_media;
1783 if (vortex_debug > 1)
1784 printk(KERN_DEBUG "%s: Media selection failing, using default "
1785 "%s port.\n",
1786 dev->name, media_tbl[dev->if_port].name);
1787 } else {
1788 if (vortex_debug > 1)
1789 printk(KERN_DEBUG "%s: Media selection failed, now trying "
1790 "%s port.\n",
1791 dev->name, media_tbl[dev->if_port].name);
1792 next_tick = media_tbl[dev->if_port].wait;
1793 }
John W. Linville62afe592005-11-07 00:58:02 -08001794 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1796
1797 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001798 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 config = BFINS(config, dev->if_port, 20, 4);
John W. Linville62afe592005-11-07 00:58:02 -08001800 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801
John W. Linville62afe592005-11-07 00:58:02 -08001802 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803 ioaddr + EL3_CMD);
1804 if (vortex_debug > 1)
1805 printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config);
1806 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1807 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808
1809leave_media_alone:
1810 if (vortex_debug > 2)
1811 printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n",
1812 dev->name, media_tbl[dev->if_port].name);
1813
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001814 EL3WINDOW(old_window);
Ingo Molnar0a9da4b2006-07-03 00:25:24 -07001815 enable_irq_lockdep(dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816 mod_timer(&vp->timer, RUN_AT(next_tick));
1817 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001818 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819 return;
1820}
1821
1822static void vortex_tx_timeout(struct net_device *dev)
1823{
1824 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001825 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826
1827 printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001828 dev->name, ioread8(ioaddr + TxStatus),
1829 ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830 EL3WINDOW(4);
1831 printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001832 ioread16(ioaddr + Wn4_NetDiag),
1833 ioread16(ioaddr + Wn4_Media),
1834 ioread32(ioaddr + PktStatus),
1835 ioread16(ioaddr + Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08001837 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
1839 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08001840 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001841 printk(KERN_ERR "%s: Interrupt posted but not delivered --"
1842 " IRQ blocked by another device?\n", dev->name);
1843 /* Bad idea here.. but we might as well handle a few events. */
1844 {
1845 /*
1846 * Block interrupts because vortex_interrupt does a bare spin_lock()
1847 */
1848 unsigned long flags;
1849 local_irq_save(flags);
1850 if (vp->full_bus_master_tx)
1851 boomerang_interrupt(dev->irq, dev, NULL);
1852 else
1853 vortex_interrupt(dev->irq, dev, NULL);
1854 local_irq_restore(flags);
1855 }
1856 }
1857
1858 if (vortex_debug > 0)
1859 dump_tx_ring(dev);
1860
1861 issue_and_wait(dev, TxReset);
1862
1863 vp->stats.tx_errors++;
1864 if (vp->full_bus_master_tx) {
1865 printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08001866 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
1867 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001868 ioaddr + DownListPtr);
1869 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
1870 netif_wake_queue (dev);
1871 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001872 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
1873 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874 } else {
1875 vp->stats.tx_dropped++;
1876 netif_wake_queue(dev);
1877 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001878
Linus Torvalds1da177e2005-04-16 15:20:36 -07001879 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08001880 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881 dev->trans_start = jiffies;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001882
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883 /* Switch to register set 7 for normal use. */
1884 EL3WINDOW(7);
1885}
1886
1887/*
1888 * Handle uncommon interrupt sources. This is a separate routine to minimize
1889 * the cache impact.
1890 */
1891static void
1892vortex_error(struct net_device *dev, int status)
1893{
1894 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001895 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896 int do_tx_reset = 0, reset_mask = 0;
1897 unsigned char tx_status = 0;
1898
1899 if (vortex_debug > 2) {
1900 printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status);
1901 }
1902
1903 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08001904 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905 /* Presumably a tx-timeout. We must merely re-enable. */
1906 if (vortex_debug > 2
1907 || (tx_status != 0x88 && vortex_debug > 0)) {
1908 printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n",
1909 dev->name, tx_status);
1910 if (tx_status == 0x82) {
1911 printk(KERN_ERR "Probably a duplex mismatch. See "
1912 "Documentation/networking/vortex.txt\n");
1913 }
1914 dump_tx_ring(dev);
1915 }
1916 if (tx_status & 0x14) vp->stats.tx_fifo_errors++;
1917 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
Andrew Morton00007542006-03-31 02:30:47 -08001918 if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
John W. Linville62afe592005-11-07 00:58:02 -08001919 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920 if (tx_status & 0x30) { /* txJabber or txUnderrun */
1921 do_tx_reset = 1;
Andrew Morton00007542006-03-31 02:30:47 -08001922 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
1923 do_tx_reset = 1;
1924 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
1925 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08001926 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001927 }
1928 }
1929
1930 if (status & RxEarly) { /* Rx early is unused. */
1931 vortex_rx(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001932 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933 }
1934 if (status & StatsFull) { /* Empty statistics. */
1935 static int DoneDidThat;
1936 if (vortex_debug > 4)
1937 printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
1938 update_stats(ioaddr, dev);
1939 /* HACK: Disable statistics as an interrupt source. */
1940 /* This occurs when we have the wrong media type! */
1941 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08001942 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943 printk(KERN_WARNING "%s: Updating statistics failed, disabling "
1944 "stats as an interrupt source.\n", dev->name);
1945 EL3WINDOW(5);
John W. Linville62afe592005-11-07 00:58:02 -08001946 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001947 vp->intr_enable &= ~StatsFull;
1948 EL3WINDOW(7);
1949 DoneDidThat++;
1950 }
1951 }
1952 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08001953 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
1954 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955 }
1956 if (status & HostError) {
1957 u16 fifo_diag;
1958 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001959 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001960 printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
1961 dev->name, fifo_diag);
1962 /* Adapter failure requires Tx/Rx reset and reinit. */
1963 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08001964 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965 /* 0x80000000 PCI master abort. */
1966 /* 0x40000000 PCI target abort. */
1967 if (vortex_debug)
1968 printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
1969
1970 /* In this case, blow the card away */
1971 /* Must not enter D3 or we can't legally issue the reset! */
1972 vortex_down(dev, 0);
1973 issue_and_wait(dev, TotalReset | 0xff);
1974 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
1975 } else if (fifo_diag & 0x0400)
1976 do_tx_reset = 1;
1977 if (fifo_diag & 0x3000) {
1978 /* Reset Rx fifo and upload logic */
1979 issue_and_wait(dev, RxReset|0x07);
1980 /* Set the Rx filter to the current state. */
1981 set_rx_mode(dev);
1982 /* enable 802.1q VLAN tagged frames */
1983 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001984 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
1985 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986 }
1987 }
1988
1989 if (do_tx_reset) {
1990 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08001991 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 if (!vp->full_bus_master_tx)
1993 netif_wake_queue(dev);
1994 }
1995}
1996
1997static int
1998vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
1999{
2000 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002001 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002
2003 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002004 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005 if (vp->bus_master) {
2006 /* Set the bus-master controller to transfer the packet. */
2007 int len = (skb->len + 3) & ~3;
Steffen Klasserta880c4c2006-03-26 01:37:43 -08002008 iowrite32(vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002010 iowrite16(len, ioaddr + Wn7_MasterLen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002011 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002012 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013 /* netif_wake_queue() will be called at the DMADone interrupt. */
2014 } else {
2015 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002016 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002018 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002019 netif_start_queue (dev); /* AKPM: redundant? */
2020 } else {
2021 /* Interrupt us when the FIFO has room for max-sized packet. */
2022 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002023 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024 }
2025 }
2026
2027 dev->trans_start = jiffies;
2028
2029 /* Clear the Tx status stack. */
2030 {
2031 int tx_status;
2032 int i = 32;
2033
John W. Linville62afe592005-11-07 00:58:02 -08002034 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2036 if (vortex_debug > 2)
2037 printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
2038 dev->name, tx_status);
2039 if (tx_status & 0x04) vp->stats.tx_fifo_errors++;
2040 if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
2041 if (tx_status & 0x30) {
2042 issue_and_wait(dev, TxReset);
2043 }
John W. Linville62afe592005-11-07 00:58:02 -08002044 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045 }
John W. Linville62afe592005-11-07 00:58:02 -08002046 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002047 }
2048 }
2049 return 0;
2050}
2051
2052static int
2053boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2054{
2055 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002056 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057 /* Calculate the next Tx descriptor entry. */
2058 int entry = vp->cur_tx % TX_RING_SIZE;
2059 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2060 unsigned long flags;
2061
2062 if (vortex_debug > 6) {
2063 printk(KERN_DEBUG "boomerang_start_xmit()\n");
John W. Linville0f667ff2005-06-21 17:15:14 -07002064 printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
2065 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002066 }
2067
2068 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2069 if (vortex_debug > 0)
2070 printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n",
2071 dev->name);
2072 netif_stop_queue(dev);
2073 return 1;
2074 }
2075
2076 vp->tx_skbuff[entry] = skb;
2077
2078 vp->tx_ring[entry].next = 0;
2079#if DO_ZEROCOPY
2080 if (skb->ip_summed != CHECKSUM_HW)
2081 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2082 else
2083 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2084
2085 if (!skb_shinfo(skb)->nr_frags) {
2086 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2087 skb->len, PCI_DMA_TODEVICE));
2088 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2089 } else {
2090 int i;
2091
2092 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2093 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2094 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2095
2096 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2097 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2098
2099 vp->tx_ring[entry].frag[i+1].addr =
2100 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2101 (void*)page_address(frag->page) + frag->page_offset,
2102 frag->size, PCI_DMA_TODEVICE));
2103
2104 if (i == skb_shinfo(skb)->nr_frags-1)
2105 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2106 else
2107 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2108 }
2109 }
2110#else
2111 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2112 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2113 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2114#endif
2115
2116 spin_lock_irqsave(&vp->lock, flags);
2117 /* Wait for the stall to complete. */
2118 issue_and_wait(dev, DownStall);
2119 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002120 if (ioread32(ioaddr + DownListPtr) == 0) {
2121 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122 vp->queued_packet++;
2123 }
2124
2125 vp->cur_tx++;
2126 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2127 netif_stop_queue (dev);
2128 } else { /* Clear previous interrupt enable. */
2129#if defined(tx_interrupt_mitigation)
2130 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2131 * were selected, this would corrupt DN_COMPLETE. No?
2132 */
2133 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2134#endif
2135 }
John W. Linville62afe592005-11-07 00:58:02 -08002136 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137 spin_unlock_irqrestore(&vp->lock, flags);
2138 dev->trans_start = jiffies;
2139 return 0;
2140}
2141
2142/* The interrupt handler does all of the Rx thread work and cleans up
2143 after the Tx thread. */
2144
2145/*
2146 * This is the ISR for the vortex series chips.
2147 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2148 */
2149
2150static irqreturn_t
2151vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2152{
2153 struct net_device *dev = dev_id;
2154 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002155 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156 int status;
2157 int work_done = max_interrupt_work;
2158 int handled = 0;
2159
John W. Linville62afe592005-11-07 00:58:02 -08002160 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161 spin_lock(&vp->lock);
2162
John W. Linville62afe592005-11-07 00:58:02 -08002163 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164
2165 if (vortex_debug > 6)
2166 printk("vortex_interrupt(). status=0x%4x\n", status);
2167
2168 if ((status & IntLatch) == 0)
2169 goto handler_exit; /* No interrupt: shared IRQs cause this */
2170 handled = 1;
2171
2172 if (status & IntReq) {
2173 status |= vp->deferred;
2174 vp->deferred = 0;
2175 }
2176
2177 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2178 goto handler_exit;
2179
2180 if (vortex_debug > 4)
2181 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002182 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183
2184 do {
2185 if (vortex_debug > 5)
2186 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2187 dev->name, status);
2188 if (status & RxComplete)
2189 vortex_rx(dev);
2190
2191 if (status & TxAvailable) {
2192 if (vortex_debug > 5)
2193 printk(KERN_DEBUG " TX room bit was handled.\n");
2194 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002195 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196 netif_wake_queue (dev);
2197 }
2198
2199 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002200 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2201 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002202 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2203 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002204 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205 /*
2206 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2207 * insufficient FIFO room, the TxAvailable test will succeed and call
2208 * netif_wake_queue()
2209 */
2210 netif_wake_queue(dev);
2211 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002212 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 netif_stop_queue(dev);
2214 }
2215 }
2216 }
2217 /* Check for all uncommon interrupts at once. */
2218 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2219 if (status == 0xffff)
2220 break;
2221 vortex_error(dev, status);
2222 }
2223
2224 if (--work_done < 0) {
2225 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2226 "%4.4x.\n", dev->name, status);
2227 /* Disable all pending interrupts. */
2228 do {
2229 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002230 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002232 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2233 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234 /* The timer will reenable interrupts. */
2235 mod_timer(&vp->timer, jiffies + 1*HZ);
2236 break;
2237 }
2238 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002239 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2240 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241
2242 if (vortex_debug > 4)
2243 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2244 dev->name, status);
2245handler_exit:
2246 spin_unlock(&vp->lock);
2247 return IRQ_RETVAL(handled);
2248}
2249
2250/*
2251 * This is the ISR for the boomerang series chips.
2252 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2253 */
2254
2255static irqreturn_t
2256boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2257{
2258 struct net_device *dev = dev_id;
2259 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002260 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261 int status;
2262 int work_done = max_interrupt_work;
2263
John W. Linville62afe592005-11-07 00:58:02 -08002264 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265
2266 /*
2267 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2268 * and boomerang_start_xmit
2269 */
2270 spin_lock(&vp->lock);
2271
John W. Linville62afe592005-11-07 00:58:02 -08002272 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273
2274 if (vortex_debug > 6)
2275 printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status);
2276
2277 if ((status & IntLatch) == 0)
2278 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2279
2280 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2281 if (vortex_debug > 1)
2282 printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n");
2283 goto handler_exit;
2284 }
2285
2286 if (status & IntReq) {
2287 status |= vp->deferred;
2288 vp->deferred = 0;
2289 }
2290
2291 if (vortex_debug > 4)
2292 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002293 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002294 do {
2295 if (vortex_debug > 5)
2296 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2297 dev->name, status);
2298 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002299 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300 if (vortex_debug > 5)
2301 printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n");
2302 boomerang_rx(dev);
2303 }
2304
2305 if (status & DownComplete) {
2306 unsigned int dirty_tx = vp->dirty_tx;
2307
John W. Linville62afe592005-11-07 00:58:02 -08002308 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309 while (vp->cur_tx - dirty_tx > 0) {
2310 int entry = dirty_tx % TX_RING_SIZE;
2311#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002312 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002313 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2314 break; /* It still hasn't been processed. */
2315#else
2316 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2317 break; /* It still hasn't been processed. */
2318#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002319
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320 if (vp->tx_skbuff[entry]) {
2321 struct sk_buff *skb = vp->tx_skbuff[entry];
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002322#if DO_ZEROCOPY
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323 int i;
2324 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2325 pci_unmap_single(VORTEX_PCI(vp),
2326 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2327 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2328 PCI_DMA_TODEVICE);
2329#else
2330 pci_unmap_single(VORTEX_PCI(vp),
2331 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2332#endif
2333 dev_kfree_skb_irq(skb);
2334 vp->tx_skbuff[entry] = NULL;
2335 } else {
2336 printk(KERN_DEBUG "boomerang_interrupt: no skb!\n");
2337 }
2338 /* vp->stats.tx_packets++; Counted below. */
2339 dirty_tx++;
2340 }
2341 vp->dirty_tx = dirty_tx;
2342 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2343 if (vortex_debug > 6)
2344 printk(KERN_DEBUG "boomerang_interrupt: wake queue\n");
2345 netif_wake_queue (dev);
2346 }
2347 }
2348
2349 /* Check for all uncommon interrupts at once. */
2350 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2351 vortex_error(dev, status);
2352
2353 if (--work_done < 0) {
2354 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2355 "%4.4x.\n", dev->name, status);
2356 /* Disable all pending interrupts. */
2357 do {
2358 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002359 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002360 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002361 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2362 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002363 /* The timer will reenable interrupts. */
2364 mod_timer(&vp->timer, jiffies + 1*HZ);
2365 break;
2366 }
2367 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002368 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002370 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371
John W. Linville62afe592005-11-07 00:58:02 -08002372 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373
2374 if (vortex_debug > 4)
2375 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2376 dev->name, status);
2377handler_exit:
2378 spin_unlock(&vp->lock);
2379 return IRQ_HANDLED;
2380}
2381
2382static int vortex_rx(struct net_device *dev)
2383{
2384 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002385 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002386 int i;
2387 short rx_status;
2388
2389 if (vortex_debug > 5)
2390 printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002391 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2392 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002394 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002395 if (vortex_debug > 2)
2396 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2397 vp->stats.rx_errors++;
2398 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2399 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2400 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2401 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2402 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2403 } else {
2404 /* The packet length: up to 4.5K!. */
2405 int pkt_len = rx_status & 0x1fff;
2406 struct sk_buff *skb;
2407
2408 skb = dev_alloc_skb(pkt_len + 5);
2409 if (vortex_debug > 4)
2410 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2411 pkt_len, rx_status);
2412 if (skb != NULL) {
2413 skb->dev = dev;
2414 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2415 /* 'skb_put()' points to the start of sk_buff data area. */
2416 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002417 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002418 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2419 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002420 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2421 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2422 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2423 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002424 ;
2425 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2426 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002427 ioread32_rep(ioaddr + RX_FIFO,
2428 skb_put(skb, pkt_len),
2429 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430 }
John W. Linville62afe592005-11-07 00:58:02 -08002431 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432 skb->protocol = eth_type_trans(skb, dev);
2433 netif_rx(skb);
2434 dev->last_rx = jiffies;
2435 vp->stats.rx_packets++;
2436 /* Wait a limited time to go to next packet. */
2437 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002438 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002439 break;
2440 continue;
2441 } else if (vortex_debug > 0)
2442 printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
2443 "size %d.\n", dev->name, pkt_len);
John W. Linville35b30672005-11-07 00:58:08 -08002444 vp->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002445 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002446 issue_and_wait(dev, RxDiscard);
2447 }
2448
2449 return 0;
2450}
2451
2452static int
2453boomerang_rx(struct net_device *dev)
2454{
2455 struct vortex_private *vp = netdev_priv(dev);
2456 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002457 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002458 int rx_status;
2459 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2460
2461 if (vortex_debug > 5)
John W. Linville62afe592005-11-07 00:58:02 -08002462 printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002463
2464 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2465 if (--rx_work_limit < 0)
2466 break;
2467 if (rx_status & RxDError) { /* Error, update stats. */
2468 unsigned char rx_error = rx_status >> 16;
2469 if (vortex_debug > 2)
2470 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
2471 vp->stats.rx_errors++;
2472 if (rx_error & 0x01) vp->stats.rx_over_errors++;
2473 if (rx_error & 0x02) vp->stats.rx_length_errors++;
2474 if (rx_error & 0x04) vp->stats.rx_frame_errors++;
2475 if (rx_error & 0x08) vp->stats.rx_crc_errors++;
2476 if (rx_error & 0x10) vp->stats.rx_length_errors++;
2477 } else {
2478 /* The packet length: up to 4.5K!. */
2479 int pkt_len = rx_status & 0x1fff;
2480 struct sk_buff *skb;
2481 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2482
2483 if (vortex_debug > 4)
2484 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2485 pkt_len, rx_status);
2486
2487 /* Check if the packet is long enough to just accept without
2488 copying to a properly sized skbuff. */
2489 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
2490 skb->dev = dev;
2491 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2492 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2493 /* 'skb_put()' points to the start of sk_buff data area. */
2494 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002495 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002496 pkt_len);
2497 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2498 vp->rx_copy++;
2499 } else {
2500 /* Pass up the skbuff already on the Rx ring. */
2501 skb = vp->rx_skbuff[entry];
2502 vp->rx_skbuff[entry] = NULL;
2503 skb_put(skb, pkt_len);
2504 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2505 vp->rx_nocopy++;
2506 }
2507 skb->protocol = eth_type_trans(skb, dev);
2508 { /* Use hardware checksum info. */
2509 int csum_bits = rx_status & 0xee000000;
2510 if (csum_bits &&
2511 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2512 csum_bits == (IPChksumValid | UDPChksumValid))) {
2513 skb->ip_summed = CHECKSUM_UNNECESSARY;
2514 vp->rx_csumhits++;
2515 }
2516 }
2517 netif_rx(skb);
2518 dev->last_rx = jiffies;
2519 vp->stats.rx_packets++;
2520 }
2521 entry = (++vp->cur_rx) % RX_RING_SIZE;
2522 }
2523 /* Refill the Rx ring buffers. */
2524 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2525 struct sk_buff *skb;
2526 entry = vp->dirty_rx % RX_RING_SIZE;
2527 if (vp->rx_skbuff[entry] == NULL) {
2528 skb = dev_alloc_skb(PKT_BUF_SZ);
2529 if (skb == NULL) {
2530 static unsigned long last_jif;
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -08002531 if (time_after(jiffies, last_jif + 10 * HZ)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002532 printk(KERN_WARNING "%s: memory shortage\n", dev->name);
2533 last_jif = jiffies;
2534 }
2535 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2536 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2537 break; /* Bad news! */
2538 }
2539 skb->dev = dev; /* Mark as being used by this device. */
2540 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07002541 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 -07002542 vp->rx_skbuff[entry] = skb;
2543 }
2544 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002545 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002546 }
2547 return 0;
2548}
2549
2550/*
2551 * If we've hit a total OOM refilling the Rx ring we poll once a second
2552 * for some memory. Otherwise there is no way to restart the rx process.
2553 */
2554static void
2555rx_oom_timer(unsigned long arg)
2556{
2557 struct net_device *dev = (struct net_device *)arg;
2558 struct vortex_private *vp = netdev_priv(dev);
2559
2560 spin_lock_irq(&vp->lock);
2561 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2562 boomerang_rx(dev);
2563 if (vortex_debug > 1) {
2564 printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name,
2565 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2566 }
2567 spin_unlock_irq(&vp->lock);
2568}
2569
2570static void
2571vortex_down(struct net_device *dev, int final_down)
2572{
2573 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002574 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575
2576 netif_stop_queue (dev);
2577
2578 del_timer_sync(&vp->rx_oom_timer);
2579 del_timer_sync(&vp->timer);
2580
2581 /* Turn off statistics ASAP. We update vp->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002582 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002583
2584 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002585 iowrite16(RxDisable, ioaddr + EL3_CMD);
2586 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002587
2588 /* Disable receiving 802.1q tagged frames */
2589 set_8021q_mode(dev, 0);
2590
2591 if (dev->if_port == XCVR_10base2)
2592 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002593 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002594
John W. Linville62afe592005-11-07 00:58:02 -08002595 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002596
2597 update_stats(ioaddr, dev);
2598 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002599 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002601 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602
2603 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002604 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002605 pci_save_state(VORTEX_PCI(vp));
2606 acpi_set_WOL(dev);
2607 }
2608}
2609
2610static int
2611vortex_close(struct net_device *dev)
2612{
2613 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002614 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002615 int i;
2616
2617 if (netif_device_present(dev))
2618 vortex_down(dev, 1);
2619
2620 if (vortex_debug > 1) {
2621 printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002622 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002623 printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
2624 " tx_queued %d Rx pre-checksummed %d.\n",
2625 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2626 }
2627
2628#if DO_ZEROCOPY
John W. Linville32fb5f02005-11-07 00:58:05 -08002629 if (vp->rx_csumhits &&
2630 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2631 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
2632 printk(KERN_WARNING "%s supports hardware checksums, and we're "
2633 "not using them!\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634 }
2635#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002636
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637 free_irq(dev->irq, dev);
2638
2639 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2640 for (i = 0; i < RX_RING_SIZE; i++)
2641 if (vp->rx_skbuff[i]) {
2642 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2643 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2644 dev_kfree_skb(vp->rx_skbuff[i]);
2645 vp->rx_skbuff[i] = NULL;
2646 }
2647 }
2648 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2649 for (i = 0; i < TX_RING_SIZE; i++) {
2650 if (vp->tx_skbuff[i]) {
2651 struct sk_buff *skb = vp->tx_skbuff[i];
2652#if DO_ZEROCOPY
2653 int k;
2654
2655 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2656 pci_unmap_single(VORTEX_PCI(vp),
2657 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2658 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2659 PCI_DMA_TODEVICE);
2660#else
2661 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2662#endif
2663 dev_kfree_skb(skb);
2664 vp->tx_skbuff[i] = NULL;
2665 }
2666 }
2667 }
2668
2669 return 0;
2670}
2671
2672static void
2673dump_tx_ring(struct net_device *dev)
2674{
2675 if (vortex_debug > 0) {
2676 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002677 void __iomem *ioaddr = vp->ioaddr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002678
Linus Torvalds1da177e2005-04-16 15:20:36 -07002679 if (vp->full_bus_master_tx) {
2680 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002681 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002682
2683 printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
2684 vp->full_bus_master_tx,
2685 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2686 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
2687 printk(KERN_ERR " Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002688 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002689 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2690 issue_and_wait(dev, DownStall);
2691 for (i = 0; i < TX_RING_SIZE; i++) {
2692 printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i,
2693 &vp->tx_ring[i],
2694#if DO_ZEROCOPY
2695 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2696#else
2697 le32_to_cpu(vp->tx_ring[i].length),
2698#endif
2699 le32_to_cpu(vp->tx_ring[i].status));
2700 }
2701 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002702 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002703 }
2704 }
2705}
2706
2707static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2708{
2709 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002710 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002711 unsigned long flags;
2712
2713 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2714 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002715 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002716 spin_unlock_irqrestore (&vp->lock, flags);
2717 }
2718 return &vp->stats;
2719}
2720
2721/* Update statistics.
2722 Unlike with the EL3 we need not worry about interrupts changing
2723 the window setting from underneath us, but we must still guard
2724 against a race condition with a StatsUpdate interrupt updating the
2725 table. This is done by checking that the ASM (!) code generated uses
2726 atomic updates with '+='.
2727 */
John W. Linville62afe592005-11-07 00:58:02 -08002728static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002729{
2730 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002731 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002732
2733 if (old_window == 0xffff) /* Chip suspended or ejected. */
2734 return;
2735 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2736 /* Switch to the stats window, and read everything. */
2737 EL3WINDOW(6);
John W. Linville62afe592005-11-07 00:58:02 -08002738 vp->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2739 vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
John W. Linville62afe592005-11-07 00:58:02 -08002740 vp->stats.tx_window_errors += ioread8(ioaddr + 4);
2741 vp->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2742 vp->stats.tx_packets += ioread8(ioaddr + 6);
2743 vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
2744 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002745 /* Don't bother with register 9, an extension of registers 6&7.
2746 If we do use the 6&7 values the atomic update assumption above
2747 is invalid. */
John W. Linville62afe592005-11-07 00:58:02 -08002748 vp->stats.rx_bytes += ioread16(ioaddr + 10);
2749 vp->stats.tx_bytes += ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002750 /* Extra stats for get_ethtool_stats() */
John W. Linville62afe592005-11-07 00:58:02 -08002751 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002752 vp->xstats.tx_single_collisions += ioread8(ioaddr + 3);
John W. Linville62afe592005-11-07 00:58:02 -08002753 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002754 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002755 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002756
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002757 vp->stats.collisions = vp->xstats.tx_multiple_collisions
2758 + vp->xstats.tx_single_collisions
2759 + vp->xstats.tx_max_collisions;
2760
Linus Torvalds1da177e2005-04-16 15:20:36 -07002761 {
John W. Linville62afe592005-11-07 00:58:02 -08002762 u8 up = ioread8(ioaddr + 13);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002763 vp->stats.rx_bytes += (up & 0x0f) << 16;
2764 vp->stats.tx_bytes += (up & 0xf0) << 12;
2765 }
2766
2767 EL3WINDOW(old_window >> 13);
2768 return;
2769}
2770
2771static int vortex_nway_reset(struct net_device *dev)
2772{
2773 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002774 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002775 unsigned long flags;
2776 int rc;
2777
2778 spin_lock_irqsave(&vp->lock, flags);
2779 EL3WINDOW(4);
2780 rc = mii_nway_restart(&vp->mii);
2781 spin_unlock_irqrestore(&vp->lock, flags);
2782 return rc;
2783}
2784
Linus Torvalds1da177e2005-04-16 15:20:36 -07002785static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2786{
2787 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002788 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002789 unsigned long flags;
2790 int rc;
2791
2792 spin_lock_irqsave(&vp->lock, flags);
2793 EL3WINDOW(4);
2794 rc = mii_ethtool_gset(&vp->mii, cmd);
2795 spin_unlock_irqrestore(&vp->lock, flags);
2796 return rc;
2797}
2798
2799static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2800{
2801 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002802 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002803 unsigned long flags;
2804 int rc;
2805
2806 spin_lock_irqsave(&vp->lock, flags);
2807 EL3WINDOW(4);
2808 rc = mii_ethtool_sset(&vp->mii, cmd);
2809 spin_unlock_irqrestore(&vp->lock, flags);
2810 return rc;
2811}
2812
2813static u32 vortex_get_msglevel(struct net_device *dev)
2814{
2815 return vortex_debug;
2816}
2817
2818static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2819{
2820 vortex_debug = dbg;
2821}
2822
2823static int vortex_get_stats_count(struct net_device *dev)
2824{
2825 return VORTEX_NUM_STATS;
2826}
2827
2828static void vortex_get_ethtool_stats(struct net_device *dev,
2829 struct ethtool_stats *stats, u64 *data)
2830{
2831 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002832 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002833 unsigned long flags;
2834
2835 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002836 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002837 spin_unlock_irqrestore(&vp->lock, flags);
2838
2839 data[0] = vp->xstats.tx_deferred;
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002840 data[1] = vp->xstats.tx_max_collisions;
2841 data[2] = vp->xstats.tx_multiple_collisions;
2842 data[3] = vp->xstats.tx_single_collisions;
2843 data[4] = vp->xstats.rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002844}
2845
2846
2847static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
2848{
2849 switch (stringset) {
2850 case ETH_SS_STATS:
2851 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
2852 break;
2853 default:
2854 WARN_ON(1);
2855 break;
2856 }
2857}
2858
2859static void vortex_get_drvinfo(struct net_device *dev,
2860 struct ethtool_drvinfo *info)
2861{
2862 struct vortex_private *vp = netdev_priv(dev);
2863
2864 strcpy(info->driver, DRV_NAME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002865 if (VORTEX_PCI(vp)) {
2866 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
2867 } else {
2868 if (VORTEX_EISA(vp))
2869 sprintf(info->bus_info, vp->gendev->bus_id);
2870 else
2871 sprintf(info->bus_info, "EISA 0x%lx %d",
2872 dev->base_addr, dev->irq);
2873 }
2874}
2875
2876static struct ethtool_ops vortex_ethtool_ops = {
2877 .get_drvinfo = vortex_get_drvinfo,
2878 .get_strings = vortex_get_strings,
2879 .get_msglevel = vortex_get_msglevel,
2880 .set_msglevel = vortex_set_msglevel,
2881 .get_ethtool_stats = vortex_get_ethtool_stats,
2882 .get_stats_count = vortex_get_stats_count,
2883 .get_settings = vortex_get_settings,
2884 .set_settings = vortex_set_settings,
Steffen Klassert373a6882006-03-26 01:37:41 -08002885 .get_link = ethtool_op_get_link,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002886 .nway_reset = vortex_nway_reset,
Steffen Klasserta880c4c2006-03-26 01:37:43 -08002887 .get_perm_addr = ethtool_op_get_perm_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002888};
2889
2890#ifdef CONFIG_PCI
2891/*
2892 * Must power the device up to do MDIO operations
2893 */
2894static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2895{
2896 int err;
2897 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002898 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002899 unsigned long flags;
2900 int state = 0;
2901
2902 if(VORTEX_PCI(vp))
2903 state = VORTEX_PCI(vp)->current_state;
2904
2905 /* The kernel core really should have pci_get_power_state() */
2906
2907 if(state != 0)
2908 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
2909 spin_lock_irqsave(&vp->lock, flags);
2910 EL3WINDOW(4);
2911 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
2912 spin_unlock_irqrestore(&vp->lock, flags);
2913 if(state != 0)
2914 pci_set_power_state(VORTEX_PCI(vp), state);
2915
2916 return err;
2917}
2918#endif
2919
2920
2921/* Pre-Cyclone chips have no documented multicast filter, so the only
2922 multicast setting is to receive all multicast frames. At least
2923 the chip has a very clean way to set the mode, unlike many others. */
2924static void set_rx_mode(struct net_device *dev)
2925{
John W. Linville62afe592005-11-07 00:58:02 -08002926 struct vortex_private *vp = netdev_priv(dev);
2927 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002928 int new_mode;
2929
2930 if (dev->flags & IFF_PROMISC) {
Andy Gospodarekd5b20692006-09-11 17:39:18 -04002931 if (vortex_debug > 3)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002932 printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
2933 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
2934 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
2935 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
2936 } else
2937 new_mode = SetRxFilter | RxStation | RxBroadcast;
2938
John W. Linville62afe592005-11-07 00:58:02 -08002939 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002940}
2941
2942#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
2943/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
2944 Note that this must be done after each RxReset due to some backwards
2945 compatibility logic in the Cyclone and Tornado ASICs */
2946
2947/* The Ethernet Type used for 802.1q tagged frames */
2948#define VLAN_ETHER_TYPE 0x8100
2949
2950static void set_8021q_mode(struct net_device *dev, int enable)
2951{
2952 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002953 void __iomem *ioaddr = vp->ioaddr;
2954 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002955 int mac_ctrl;
2956
2957 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
2958 /* cyclone and tornado chipsets can recognize 802.1q
2959 * tagged frames and treat them correctly */
2960
2961 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
2962 if (enable)
2963 max_pkt_size += 4; /* 802.1Q VLAN tag */
2964
2965 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08002966 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002967
2968 /* set VlanEtherType to let the hardware checksumming
2969 treat tagged frames correctly */
2970 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08002971 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002972 } else {
2973 /* on older cards we have to enable large frames */
2974
2975 vp->large_frames = dev->mtu > 1500 || enable;
2976
2977 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08002978 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002979 if (vp->large_frames)
2980 mac_ctrl |= 0x40;
2981 else
2982 mac_ctrl &= ~0x40;
John W. Linville62afe592005-11-07 00:58:02 -08002983 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002984 }
2985
2986 EL3WINDOW(old_window);
2987}
2988#else
2989
2990static void set_8021q_mode(struct net_device *dev, int enable)
2991{
2992}
2993
2994
2995#endif
2996
2997/* MII transceiver control section.
2998 Read and write the MII registers using software-generated serial
2999 MDIO protocol. See the MII specifications or DP83840A data sheet
3000 for details. */
3001
3002/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3003 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3004 "overclocking" issues. */
John W. Linville62afe592005-11-07 00:58:02 -08003005#define mdio_delay() ioread32(mdio_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003006
3007#define MDIO_SHIFT_CLK 0x01
3008#define MDIO_DIR_WRITE 0x04
3009#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3010#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3011#define MDIO_DATA_READ 0x02
3012#define MDIO_ENB_IN 0x00
3013
3014/* Generate the preamble required for initial synchronization and
3015 a few older transceivers. */
John W. Linville62afe592005-11-07 00:58:02 -08003016static void mdio_sync(void __iomem *ioaddr, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003017{
John W. Linville62afe592005-11-07 00:58:02 -08003018 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003019
3020 /* Establish sync by sending at least 32 logic ones. */
3021 while (-- bits >= 0) {
John W. Linville62afe592005-11-07 00:58:02 -08003022 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003023 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003024 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003025 mdio_delay();
3026 }
3027}
3028
3029static int mdio_read(struct net_device *dev, int phy_id, int location)
3030{
3031 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003032 struct vortex_private *vp = netdev_priv(dev);
3033 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003034 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3035 unsigned int retval = 0;
John W. Linville62afe592005-11-07 00:58:02 -08003036 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003037
3038 if (mii_preamble_required)
3039 mdio_sync(ioaddr, 32);
3040
3041 /* Shift the read command bits out. */
3042 for (i = 14; i >= 0; i--) {
3043 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003044 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003045 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003046 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003047 mdio_delay();
3048 }
3049 /* Read the two transition, 16 data, and wire-idle bits. */
3050 for (i = 19; i > 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003051 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003052 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003053 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3054 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003055 mdio_delay();
3056 }
3057 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3058}
3059
3060static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3061{
John W. Linville62afe592005-11-07 00:58:02 -08003062 struct vortex_private *vp = netdev_priv(dev);
3063 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003064 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
John W. Linville62afe592005-11-07 00:58:02 -08003065 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003066 int i;
3067
3068 if (mii_preamble_required)
3069 mdio_sync(ioaddr, 32);
3070
3071 /* Shift the command bits out. */
3072 for (i = 31; i >= 0; i--) {
3073 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003074 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003076 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003077 mdio_delay();
3078 }
3079 /* Leave the interface idle. */
3080 for (i = 1; i >= 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003081 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003082 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003083 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003084 mdio_delay();
3085 }
3086 return;
3087}
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003088
Linus Torvalds1da177e2005-04-16 15:20:36 -07003089/* ACPI: Advanced Configuration and Power Interface. */
3090/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3091static void acpi_set_WOL(struct net_device *dev)
3092{
3093 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003094 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003095
3096 if (vp->enable_wol) {
3097 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3098 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003099 iowrite16(2, ioaddr + 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003100 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003101 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3102 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003103
3104 pci_enable_wake(VORTEX_PCI(vp), 0, 1);
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003105
3106 /* Change the power state to D3; RxEnable doesn't take effect. */
3107 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003108 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003109}
3110
3111
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003112static void __devexit vortex_remove_one(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113{
3114 struct net_device *dev = pci_get_drvdata(pdev);
3115 struct vortex_private *vp;
3116
3117 if (!dev) {
3118 printk("vortex_remove_one called for Compaq device!\n");
3119 BUG();
3120 }
3121
3122 vp = netdev_priv(dev);
3123
John W. Linville62afe592005-11-07 00:58:02 -08003124 if (vp->cb_fn_base)
3125 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3126
Linus Torvalds1da177e2005-04-16 15:20:36 -07003127 unregister_netdev(dev);
3128
3129 if (VORTEX_PCI(vp)) {
3130 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3131 if (vp->pm_state_valid)
3132 pci_restore_state(VORTEX_PCI(vp));
3133 pci_disable_device(VORTEX_PCI(vp));
3134 }
3135 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003136 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3137 vp->ioaddr + EL3_CMD);
3138
3139 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003140
3141 pci_free_consistent(pdev,
3142 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3143 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3144 vp->rx_ring,
3145 vp->rx_ring_dma);
3146 if (vp->must_free_region)
3147 release_region(dev->base_addr, vp->io_size);
3148 free_netdev(dev);
3149}
3150
3151
3152static struct pci_driver vortex_driver = {
3153 .name = "3c59x",
3154 .probe = vortex_init_one,
3155 .remove = __devexit_p(vortex_remove_one),
3156 .id_table = vortex_pci_tbl,
3157#ifdef CONFIG_PM
3158 .suspend = vortex_suspend,
3159 .resume = vortex_resume,
3160#endif
3161};
3162
3163
3164static int vortex_have_pci;
3165static int vortex_have_eisa;
3166
3167
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003168static int __init vortex_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003169{
3170 int pci_rc, eisa_rc;
3171
Jeff Garzik29917622006-08-19 17:48:59 -04003172 pci_rc = pci_register_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003173 eisa_rc = vortex_eisa_init();
3174
3175 if (pci_rc == 0)
3176 vortex_have_pci = 1;
3177 if (eisa_rc > 0)
3178 vortex_have_eisa = 1;
3179
3180 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3181}
3182
3183
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003184static void __exit vortex_eisa_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003185{
3186 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003187 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003188
3189#ifdef CONFIG_EISA
3190 /* Take care of the EISA devices */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003191 eisa_driver_unregister(&vortex_eisa_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003192#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003193
Linus Torvalds1da177e2005-04-16 15:20:36 -07003194 if (compaq_net_device) {
3195 vp = compaq_net_device->priv;
John W. Linville62afe592005-11-07 00:58:02 -08003196 ioaddr = ioport_map(compaq_net_device->base_addr,
3197 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003198
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003199 unregister_netdev(compaq_net_device);
3200 iowrite16(TotalReset, ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08003201 release_region(compaq_net_device->base_addr,
3202 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003203
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003204 free_netdev(compaq_net_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003205 }
3206}
3207
3208
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003209static void __exit vortex_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003210{
3211 if (vortex_have_pci)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003212 pci_unregister_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003213 if (vortex_have_eisa)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003214 vortex_eisa_cleanup();
Linus Torvalds1da177e2005-04-16 15:20:36 -07003215}
3216
3217
3218module_init(vortex_init);
3219module_exit(vortex_cleanup);