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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>
Yinghai Lu60e4ad72008-08-19 20:49:50 -070093#include <asm/irq.h> /* For nr_irqs only. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070094#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
Stephen Hemminger86de79b2009-02-26 10:19:24 +0000105static const char version[] __devinitconst =
106 DRV_NAME ": Donald Becker and others.\n";
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
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",
Gunnar Larischaa807f72008-05-05 14:01:28 +0200322 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 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",
Steffen Klassertb8a1fce2007-07-09 11:50:23 -0700327 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 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 {
Al Virocc2d6592007-08-22 21:34:46 -0400541 __le32 next; /* Last entry points to 0. */
542 __le32 status;
543 __le32 addr; /* Up to 63 addr/len pairs possible. */
544 __le32 length; /* Set LAST_FRAG to indicate last pair. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545};
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 {
Al Virocc2d6592007-08-22 21:34:46 -0400561 __le32 next; /* Last entry points to 0. */
562 __le32 status; /* bits 0:12 length, others see below. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563#if DO_ZEROCOPY
564 struct {
Al Virocc2d6592007-08-22 21:34:46 -0400565 __le32 addr;
566 __le32 length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 } frag[1+MAX_SKB_FRAGS];
568#else
Al Virocc2d6592007-08-22 21:34:46 -0400569 __le32 addr;
570 __le32 length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571#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. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 struct vortex_extra_stats xstats; /* NIC-specific extra stats */
604 struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
605 dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
606
607 /* PCI configuration space information. */
608 struct device *gendev;
John W. Linville62afe592005-11-07 00:58:02 -0800609 void __iomem *ioaddr; /* IO address space */
610 void __iomem *cb_fn_base; /* CardBus function status addr space. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611
612 /* Some values here only for performance evaluation and path-coverage */
613 int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
614 int card_idx;
615
616 /* The remainder are related to chip state, mostly media selection. */
617 struct timer_list timer; /* Media selection timer. */
618 struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
619 int options; /* User-settable misc. driver options. */
620 unsigned int media_override:4, /* Passed-in media type. */
621 default_media:4, /* Read from the EEPROM/Wn3_Config. */
Steffen Klassert09ce3512006-03-31 02:30:48 -0800622 full_duplex:1, autoselect:1,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 bus_master:1, /* Vortex can only do a fragment bus-m. */
624 full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
625 flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
626 partner_flow_ctrl:1, /* Partner supports flow control */
627 has_nway:1,
628 enable_wol:1, /* Wake-on-LAN is enabled */
629 pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */
630 open:1,
631 medialock:1,
632 must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */
633 large_frames:1; /* accept large frames */
634 int drv_flags;
635 u16 status_enable;
636 u16 intr_enable;
637 u16 available_media; /* From Wn3_Options. */
638 u16 capabilities, info1, info2; /* Various, from EEPROM. */
639 u16 advertising; /* NWay media advertisement */
640 unsigned char phys[2]; /* MII device addresses. */
641 u16 deferred; /* Resend these interrupts when we
642 * bale from the ISR */
643 u16 io_size; /* Size of PCI region (for release_region) */
644 spinlock_t lock; /* Serialise access to device & its vortex_private */
645 struct mii_if_info mii; /* MII lib hooks/info */
646};
647
648#ifdef CONFIG_PCI
649#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
650#else
651#define DEVICE_PCI(dev) NULL
652#endif
653
654#define VORTEX_PCI(vp) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL)
655
656#ifdef CONFIG_EISA
657#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
658#else
659#define DEVICE_EISA(dev) NULL
660#endif
661
662#define VORTEX_EISA(vp) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL)
663
664/* The action to take with a media selection timer tick.
665 Note that we deviate from the 3Com order by checking 10base2 before AUI.
666 */
667enum xcvr_types {
668 XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
669 XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
670};
671
Arjan van de Venf71e1302006-03-03 21:33:57 -0500672static const struct media_table {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 char *name;
674 unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
675 mask:8, /* The transceiver-present bit in Wn3_Config.*/
676 next:8; /* The media type to try next. */
677 int wait; /* Time before we check media status. */
678} media_tbl[] = {
679 { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
680 { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
681 { "undefined", 0, 0x80, XCVR_10baseT, 10000},
682 { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
683 { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
684 { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
685 { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
686 { "undefined", 0, 0x01, XCVR_10baseT, 10000},
687 { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
688 { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
689 { "Default", 0, 0xFF, XCVR_10baseT, 10000},
690};
691
692static struct {
693 const char str[ETH_GSTRING_LEN];
694} ethtool_stats_keys[] = {
695 { "tx_deferred" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800696 { "tx_max_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697 { "tx_multiple_collisions" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800698 { "tx_single_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 { "rx_bad_ssd" },
700};
701
702/* number of ETHTOOL_GSTATS u64's */
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800703#define VORTEX_NUM_STATS 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704
John W. Linville62afe592005-11-07 00:58:02 -0800705static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 int chip_idx, int card_idx);
Mark Hindleyc8303d12007-08-16 11:28:40 +0100707static int vortex_up(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708static void vortex_down(struct net_device *dev, int final);
709static int vortex_open(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800710static void mdio_sync(void __iomem *ioaddr, int bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711static int mdio_read(struct net_device *dev, int phy_id, int location);
712static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
713static void vortex_timer(unsigned long arg);
714static void rx_oom_timer(unsigned long arg);
715static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev);
716static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev);
717static int vortex_rx(struct net_device *dev);
718static int boomerang_rx(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100719static irqreturn_t vortex_interrupt(int irq, void *dev_id);
720static irqreturn_t boomerang_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721static int vortex_close(struct net_device *dev);
722static void dump_tx_ring(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800723static void update_stats(void __iomem *ioaddr, struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724static struct net_device_stats *vortex_get_stats(struct net_device *dev);
725static void set_rx_mode(struct net_device *dev);
726#ifdef CONFIG_PCI
727static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
728#endif
729static void vortex_tx_timeout(struct net_device *dev);
730static void acpi_set_WOL(struct net_device *dev);
Jeff Garzik7282d492006-09-13 14:30:00 -0400731static const struct ethtool_ops vortex_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732static void set_8021q_mode(struct net_device *dev, int enable);
733
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
735/* Option count limit only -- unlimited interfaces are supported. */
736#define MAX_UNITS 8
John W. Linville9954ab72005-11-07 00:58:06 -0800737static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 };
738static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
739static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
740static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
741static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
John W. Linville900fd172005-11-07 00:58:08 -0800742static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743static int global_options = -1;
744static int global_full_duplex = -1;
745static int global_enable_wol = -1;
John W. Linville900fd172005-11-07 00:58:08 -0800746static int global_use_mmio = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748/* Variables to work-around the Compaq PCI BIOS32 problem. */
749static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
750static struct net_device *compaq_net_device;
751
752static int vortex_cards_found;
753
754module_param(debug, int, 0);
755module_param(global_options, int, 0);
756module_param_array(options, int, NULL, 0);
757module_param(global_full_duplex, int, 0);
758module_param_array(full_duplex, int, NULL, 0);
759module_param_array(hw_checksums, int, NULL, 0);
760module_param_array(flow_ctrl, int, NULL, 0);
761module_param(global_enable_wol, int, 0);
762module_param_array(enable_wol, int, NULL, 0);
763module_param(rx_copybreak, int, 0);
764module_param(max_interrupt_work, int, 0);
765module_param(compaq_ioaddr, int, 0);
766module_param(compaq_irq, int, 0);
767module_param(compaq_device_id, int, 0);
768module_param(watchdog, int, 0);
John W. Linville900fd172005-11-07 00:58:08 -0800769module_param(global_use_mmio, int, 0);
770module_param_array(use_mmio, int, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
772MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
773MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
774MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800775MODULE_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 -0700776MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
777MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
778MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800779MODULE_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 -0700780MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
781MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
782MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
783MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
784MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
785MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
John W. Linville900fd172005-11-07 00:58:08 -0800786MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset");
787MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788
789#ifdef CONFIG_NET_POLL_CONTROLLER
790static void poll_vortex(struct net_device *dev)
791{
792 struct vortex_private *vp = netdev_priv(dev);
793 unsigned long flags;
Jiri Kosina0d38ff12007-02-05 16:29:48 -0800794 local_irq_save(flags);
David Howells7d12e782006-10-05 14:55:46 +0100795 (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 local_irq_restore(flags);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400797}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798#endif
799
800#ifdef CONFIG_PM
801
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800802static int vortex_suspend(struct pci_dev *pdev, pm_message_t state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803{
804 struct net_device *dev = pci_get_drvdata(pdev);
805
Wang Chen454d7c92008-11-12 23:37:49 -0800806 if (dev && netdev_priv(dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 if (netif_running(dev)) {
808 netif_device_detach(dev);
809 vortex_down(dev, 1);
810 }
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700811 pci_save_state(pdev);
812 pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
813 free_irq(dev->irq, dev);
814 pci_disable_device(pdev);
815 pci_set_power_state(pdev, pci_choose_state(pdev, state));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 }
817 return 0;
818}
819
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800820static int vortex_resume(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821{
822 struct net_device *dev = pci_get_drvdata(pdev);
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700823 struct vortex_private *vp = netdev_priv(dev);
Dmitriy Monakhove1265152007-03-06 02:41:59 -0800824 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700826 if (dev && vp) {
827 pci_set_power_state(pdev, PCI_D0);
828 pci_restore_state(pdev);
Dmitriy Monakhove1265152007-03-06 02:41:59 -0800829 err = pci_enable_device(pdev);
830 if (err) {
Alexander Beregalov39738e12009-05-26 12:35:26 +0000831 pr_warning("%s: Could not enable device\n",
Dmitriy Monakhove1265152007-03-06 02:41:59 -0800832 dev->name);
833 return err;
834 }
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700835 pci_set_master(pdev);
836 if (request_irq(dev->irq, vp->full_bus_master_rx ?
Thomas Gleixner1fb9df52006-07-01 19:29:39 -0700837 &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +0000838 pr_warning("%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
Rafael J. Wysocki5b039e62005-09-06 15:16:22 -0700839 pci_disable_device(pdev);
840 return -EBUSY;
841 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 if (netif_running(dev)) {
Mark Hindleyc8303d12007-08-16 11:28:40 +0100843 err = vortex_up(dev);
844 if (err)
845 return err;
846 else
847 netif_device_attach(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 }
849 }
850 return 0;
851}
852
853#endif /* CONFIG_PM */
854
855#ifdef CONFIG_EISA
856static struct eisa_device_id vortex_eisa_ids[] = {
857 { "TCM5920", CH_3C592 },
858 { "TCM5970", CH_3C597 },
859 { "" }
860};
Michael Tokarev07563c72006-09-27 01:50:56 -0700861MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862
Ralf Baechle95c408a2007-03-08 15:33:16 +0000863static int __init vortex_eisa_probe(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864{
John W. Linville62afe592005-11-07 00:58:02 -0800865 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 struct eisa_device *edev;
867
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800868 edev = to_eisa_device(device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
John W. Linville62afe592005-11-07 00:58:02 -0800870 if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 return -EBUSY;
872
John W. Linville62afe592005-11-07 00:58:02 -0800873 ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
874
875 if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876 edev->id.driver_data, vortex_cards_found)) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800877 release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878 return -ENODEV;
879 }
880
881 vortex_cards_found++;
882
883 return 0;
884}
885
Ralf Baechle95c408a2007-03-08 15:33:16 +0000886static int __devexit vortex_eisa_remove(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887{
888 struct eisa_device *edev;
889 struct net_device *dev;
890 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -0800891 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800893 edev = to_eisa_device(device);
894 dev = eisa_get_drvdata(edev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
896 if (!dev) {
Alexander Beregalov39738e12009-05-26 12:35:26 +0000897 pr_err("vortex_eisa_remove called for Compaq device!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898 BUG();
899 }
900
901 vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -0800902 ioaddr = vp->ioaddr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400903
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800904 unregister_netdev(dev);
905 iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
906 release_region(dev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800908 free_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909 return 0;
910}
Ralf Baechle95c408a2007-03-08 15:33:16 +0000911
912static struct eisa_driver vortex_eisa_driver = {
913 .id_table = vortex_eisa_ids,
914 .driver = {
915 .name = "3c59x",
916 .probe = vortex_eisa_probe,
917 .remove = __devexit_p(vortex_eisa_remove)
918 }
919};
920
921#endif /* CONFIG_EISA */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
923/* returns count found (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800924static int __init vortex_eisa_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925{
926 int eisa_found = 0;
927 int orig_cards_found = vortex_cards_found;
928
929#ifdef CONFIG_EISA
Bjorn Helgaasc2f6fab2006-03-25 03:07:19 -0800930 int err;
931
932 err = eisa_driver_register (&vortex_eisa_driver);
933 if (!err) {
934 /*
935 * Because of the way EISA bus is probed, we cannot assume
936 * any device have been found when we exit from
937 * eisa_driver_register (the bus root driver may not be
938 * initialized yet). So we blindly assume something was
939 * found, and let the sysfs magic happend...
940 */
941 eisa_found = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942 }
943#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400944
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945 /* Special code to work-around the Compaq PCI BIOS32 problem. */
946 if (compaq_ioaddr) {
John W. Linville62afe592005-11-07 00:58:02 -0800947 vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
948 compaq_irq, compaq_device_id, vortex_cards_found++);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949 }
950
951 return vortex_cards_found - orig_cards_found + eisa_found;
952}
953
954/* returns count (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800955static int __devinit vortex_init_one(struct pci_dev *pdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956 const struct pci_device_id *ent)
957{
John W. Linville900fd172005-11-07 00:58:08 -0800958 int rc, unit, pci_bar;
959 struct vortex_chip_info *vci;
960 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400962 /* wake up and enable device */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800963 rc = pci_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 if (rc < 0)
965 goto out;
966
John W. Linville900fd172005-11-07 00:58:08 -0800967 unit = vortex_cards_found;
968
969 if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
970 /* Determine the default if the user didn't override us */
971 vci = &vortex_info_tbl[ent->driver_data];
972 pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0;
973 } else if (unit < MAX_UNITS && use_mmio[unit] >= 0)
974 pci_bar = use_mmio[unit] ? 1 : 0;
975 else
976 pci_bar = global_use_mmio ? 1 : 0;
977
978 ioaddr = pci_iomap(pdev, pci_bar, 0);
979 if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
980 ioaddr = pci_iomap(pdev, 0, 0);
981
982 rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
983 ent->driver_data, unit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984 if (rc < 0) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800985 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 goto out;
987 }
988
989 vortex_cards_found++;
990
991out:
992 return rc;
993}
994
Stephen Hemminger48b47a52009-01-09 13:01:18 +0000995static const struct net_device_ops boomrang_netdev_ops = {
996 .ndo_open = vortex_open,
997 .ndo_stop = vortex_close,
998 .ndo_start_xmit = boomerang_start_xmit,
999 .ndo_tx_timeout = vortex_tx_timeout,
1000 .ndo_get_stats = vortex_get_stats,
1001#ifdef CONFIG_PCI
1002 .ndo_do_ioctl = vortex_ioctl,
1003#endif
1004 .ndo_set_multicast_list = set_rx_mode,
1005 .ndo_change_mtu = eth_change_mtu,
1006 .ndo_set_mac_address = eth_mac_addr,
1007 .ndo_validate_addr = eth_validate_addr,
1008#ifdef CONFIG_NET_POLL_CONTROLLER
1009 .ndo_poll_controller = poll_vortex,
1010#endif
1011};
1012
1013static const struct net_device_ops vortex_netdev_ops = {
1014 .ndo_open = vortex_open,
1015 .ndo_stop = vortex_close,
1016 .ndo_start_xmit = vortex_start_xmit,
1017 .ndo_tx_timeout = vortex_tx_timeout,
1018 .ndo_get_stats = vortex_get_stats,
1019#ifdef CONFIG_PCI
1020 .ndo_do_ioctl = vortex_ioctl,
1021#endif
1022 .ndo_set_multicast_list = set_rx_mode,
1023 .ndo_change_mtu = eth_change_mtu,
1024 .ndo_set_mac_address = eth_mac_addr,
1025 .ndo_validate_addr = eth_validate_addr,
1026#ifdef CONFIG_NET_POLL_CONTROLLER
1027 .ndo_poll_controller = poll_vortex,
1028#endif
1029};
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031/*
1032 * Start up the PCI/EISA device which is described by *gendev.
1033 * Return 0 on success.
1034 *
1035 * NOTE: pdev can be NULL, for the case of a Compaq device
1036 */
1037static int __devinit vortex_probe1(struct device *gendev,
John W. Linville62afe592005-11-07 00:58:02 -08001038 void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 int chip_idx, int card_idx)
1040{
1041 struct vortex_private *vp;
1042 int option;
1043 unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
1044 int i, step;
1045 struct net_device *dev;
1046 static int printed_version;
1047 int retval, print_info;
1048 struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
Greg Kroah-Hartman361d5ee2008-07-02 12:46:22 -07001049 const char *print_name = "3c59x";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 struct pci_dev *pdev = NULL;
1051 struct eisa_device *edev = NULL;
1052
1053 if (!printed_version) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001054 pr_info("%s", version);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 printed_version = 1;
1056 }
1057
1058 if (gendev) {
1059 if ((pdev = DEVICE_PCI(gendev))) {
1060 print_name = pci_name(pdev);
1061 }
1062
1063 if ((edev = DEVICE_EISA(gendev))) {
Kay Sieversfb28ad32008-11-10 13:55:14 -08001064 print_name = dev_name(&edev->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 }
1066 }
1067
1068 dev = alloc_etherdev(sizeof(*vp));
1069 retval = -ENOMEM;
1070 if (!dev) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001071 pr_err(PFX "unable to allocate etherdev, aborting\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072 goto out;
1073 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 SET_NETDEV_DEV(dev, gendev);
1075 vp = netdev_priv(dev);
1076
1077 option = global_options;
1078
1079 /* The lower four bits are the media type. */
1080 if (dev->mem_start) {
1081 /*
1082 * The 'options' param is passed in as the third arg to the
1083 * LILO 'ether=' argument for non-modular use
1084 */
1085 option = dev->mem_start;
1086 }
1087 else if (card_idx < MAX_UNITS) {
1088 if (options[card_idx] >= 0)
1089 option = options[card_idx];
1090 }
1091
1092 if (option > 0) {
1093 if (option & 0x8000)
1094 vortex_debug = 7;
1095 if (option & 0x4000)
1096 vortex_debug = 2;
1097 if (option & 0x0400)
1098 vp->enable_wol = 1;
1099 }
1100
1101 print_info = (vortex_debug > 1);
1102 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001103 pr_info("See Documentation/networking/vortex.txt\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104
Alexander Beregalov39738e12009-05-26 12:35:26 +00001105 pr_info("%s: 3Com %s %s at %p.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106 print_name,
1107 pdev ? "PCI" : "EISA",
1108 vci->name,
1109 ioaddr);
1110
John W. Linville62afe592005-11-07 00:58:02 -08001111 dev->base_addr = (unsigned long)ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112 dev->irq = irq;
1113 dev->mtu = mtu;
John W. Linville62afe592005-11-07 00:58:02 -08001114 vp->ioaddr = ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115 vp->large_frames = mtu > 1500;
1116 vp->drv_flags = vci->drv_flags;
1117 vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
1118 vp->io_size = vci->io_size;
1119 vp->card_idx = card_idx;
1120
1121 /* module list only for Compaq device */
1122 if (gendev == NULL) {
1123 compaq_net_device = dev;
1124 }
1125
1126 /* PCI-only startup logic */
1127 if (pdev) {
1128 /* EISA resources already marked, so only PCI needs to do this here */
1129 /* Ignore return value, because Cardbus drivers already allocate for us */
John W. Linville62afe592005-11-07 00:58:02 -08001130 if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 vp->must_free_region = 1;
1132
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001133 /* enable bus-mastering if necessary */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134 if (vci->flags & PCI_USES_MASTER)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001135 pci_set_master(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
1137 if (vci->drv_flags & IS_VORTEX) {
1138 u8 pci_latency;
1139 u8 new_latency = 248;
1140
1141 /* Check the PCI latency value. On the 3c590 series the latency timer
1142 must be set to the maximum value to avoid data corruption that occurs
1143 when the timer expires during a transfer. This bug exists the Vortex
1144 chip only. */
1145 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
1146 if (pci_latency < new_latency) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001147 pr_info("%s: Overriding PCI latency timer (CFLT) setting of %d, new value is %d.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148 print_name, pci_latency, new_latency);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001149 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150 }
1151 }
1152 }
1153
1154 spin_lock_init(&vp->lock);
1155 vp->gendev = gendev;
1156 vp->mii.dev = dev;
1157 vp->mii.mdio_read = mdio_read;
1158 vp->mii.mdio_write = mdio_write;
1159 vp->mii.phy_id_mask = 0x1f;
1160 vp->mii.reg_num_mask = 0x1f;
1161
1162 /* Makes sure rings are at least 16 byte aligned. */
1163 vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
1164 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1165 &vp->rx_ring_dma);
1166 retval = -ENOMEM;
Al Virocc2d6592007-08-22 21:34:46 -04001167 if (!vp->rx_ring)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 goto free_region;
1169
1170 vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
1171 vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
1172
1173 /* if we are a PCI driver, we store info in pdev->driver_data
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001174 * instead of a module list */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175 if (pdev)
1176 pci_set_drvdata(pdev, dev);
1177 if (edev)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001178 eisa_set_drvdata(edev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179
1180 vp->media_override = 7;
1181 if (option >= 0) {
1182 vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
1183 if (vp->media_override != 7)
1184 vp->medialock = 1;
1185 vp->full_duplex = (option & 0x200) ? 1 : 0;
1186 vp->bus_master = (option & 16) ? 1 : 0;
1187 }
1188
1189 if (global_full_duplex > 0)
1190 vp->full_duplex = 1;
1191 if (global_enable_wol > 0)
1192 vp->enable_wol = 1;
1193
1194 if (card_idx < MAX_UNITS) {
1195 if (full_duplex[card_idx] > 0)
1196 vp->full_duplex = 1;
1197 if (flow_ctrl[card_idx] > 0)
1198 vp->flow_ctrl = 1;
1199 if (enable_wol[card_idx] > 0)
1200 vp->enable_wol = 1;
1201 }
1202
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001203 vp->mii.force_media = vp->full_duplex;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204 vp->options = option;
1205 /* Read the station address from the EEPROM. */
1206 EL3WINDOW(0);
1207 {
1208 int base;
1209
1210 if (vci->drv_flags & EEPROM_8BIT)
1211 base = 0x230;
1212 else if (vci->drv_flags & EEPROM_OFFSET)
1213 base = EEPROM_Read + 0x30;
1214 else
1215 base = EEPROM_Read;
1216
1217 for (i = 0; i < 0x40; i++) {
1218 int timer;
John W. Linville62afe592005-11-07 00:58:02 -08001219 iowrite16(base + i, ioaddr + Wn0EepromCmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220 /* Pause for at least 162 us. for the read to take place. */
1221 for (timer = 10; timer >= 0; timer--) {
1222 udelay(162);
John W. Linville62afe592005-11-07 00:58:02 -08001223 if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001224 break;
1225 }
John W. Linville62afe592005-11-07 00:58:02 -08001226 eeprom[i] = ioread16(ioaddr + Wn0EepromData);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227 }
1228 }
1229 for (i = 0; i < 0x18; i++)
1230 checksum ^= eeprom[i];
1231 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1232 if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
1233 while (i < 0x21)
1234 checksum ^= eeprom[i++];
1235 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1236 }
1237 if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO))
Alexander Beregalov39738e12009-05-26 12:35:26 +00001238 pr_cont(" ***INVALID CHECKSUM %4.4x*** ", checksum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 for (i = 0; i < 3; i++)
Al Virocc2d6592007-08-22 21:34:46 -04001240 ((__be16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
John W. Linvillebb531fc2005-11-07 00:58:07 -08001241 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Joe Perches0795af52007-10-03 17:59:30 -07001242 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001243 pr_cont(" %pM", dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244 /* Unfortunately an all zero eeprom passes the checksum and this
1245 gets found in the wild in failure cases. Crypto is hard 8) */
1246 if (!is_valid_ether_addr(dev->dev_addr)) {
1247 retval = -EINVAL;
Alexander Beregalov39738e12009-05-26 12:35:26 +00001248 pr_err("*** EEPROM MAC address is invalid.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 goto free_ring; /* With every pack */
1250 }
1251 EL3WINDOW(2);
1252 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001253 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001256 pr_cont(", IRQ %d\n", dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257 /* Tell them about an invalid IRQ. */
Yinghai Lu60e4ad72008-08-19 20:49:50 -07001258 if (dev->irq <= 0 || dev->irq >= nr_irqs)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001259 pr_warning(" *** Warning: IRQ %d is unlikely to work! ***\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261
1262 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001263 step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001265 pr_info(" product code %02x%02x rev %02x.%d date %02d-%02d-%02d\n",
1266 eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267 step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
1268 }
1269
1270
1271 if (pdev && vci->drv_flags & HAS_CB_FNS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 unsigned short n;
1273
John W. Linville62afe592005-11-07 00:58:02 -08001274 vp->cb_fn_base = pci_iomap(pdev, 2, 0);
1275 if (!vp->cb_fn_base) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 retval = -ENOMEM;
John W. Linville62afe592005-11-07 00:58:02 -08001277 goto free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278 }
John W. Linville62afe592005-11-07 00:58:02 -08001279
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001281 pr_info("%s: CardBus functions mapped %16.16llx->%p\n",
Greg Kroah-Hartman7c7459d2006-06-12 15:13:08 -07001282 print_name,
1283 (unsigned long long)pci_resource_start(pdev, 2),
John W. Linville62afe592005-11-07 00:58:02 -08001284 vp->cb_fn_base);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 }
1286 EL3WINDOW(2);
1287
John W. Linville62afe592005-11-07 00:58:02 -08001288 n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289 if (vp->drv_flags & INVERT_LED_PWR)
1290 n |= 0x10;
1291 if (vp->drv_flags & INVERT_MII_PWR)
1292 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001293 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294 if (vp->drv_flags & WNO_XCVR_PWR) {
1295 EL3WINDOW(0);
John W. Linville62afe592005-11-07 00:58:02 -08001296 iowrite16(0x0800, ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297 }
1298 }
1299
1300 /* Extract our information from the EEPROM data. */
1301 vp->info1 = eeprom[13];
1302 vp->info2 = eeprom[15];
1303 vp->capabilities = eeprom[16];
1304
1305 if (vp->info1 & 0x8000) {
1306 vp->full_duplex = 1;
1307 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001308 pr_info("Full duplex capable\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309 }
1310
1311 {
Arjan van de Venf71e1302006-03-03 21:33:57 -05001312 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313 unsigned int config;
1314 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001315 vp->available_media = ioread16(ioaddr + Wn3_Options);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
1317 vp->available_media = 0x40;
John W. Linville62afe592005-11-07 00:58:02 -08001318 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001319 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001320 pr_debug(" Internal config register is %4.4x, transceivers %#x.\n",
1321 config, ioread16(ioaddr + Wn3_Options));
1322 pr_info(" %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 8 << RAM_SIZE(config),
1324 RAM_WIDTH(config) ? "word" : "byte",
1325 ram_split[RAM_SPLIT(config)],
1326 AUTOSELECT(config) ? "autoselect/" : "",
1327 XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
1328 media_tbl[XCVR(config)].name);
1329 }
1330 vp->default_media = XCVR(config);
1331 if (vp->default_media == XCVR_NWAY)
1332 vp->has_nway = 1;
1333 vp->autoselect = AUTOSELECT(config);
1334 }
1335
1336 if (vp->media_override != 7) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001337 pr_info("%s: Media override to transceiver type %d (%s).\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 print_name, vp->media_override,
1339 media_tbl[vp->media_override].name);
1340 dev->if_port = vp->media_override;
1341 } else
1342 dev->if_port = vp->default_media;
1343
1344 if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
1345 dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1346 int phy, phy_idx = 0;
1347 EL3WINDOW(4);
1348 mii_preamble_required++;
1349 if (vp->drv_flags & EXTRA_PREAMBLE)
1350 mii_preamble_required++;
1351 mdio_sync(ioaddr, 32);
Neil Horman106427e2005-11-07 00:58:03 -08001352 mdio_read(dev, 24, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353 for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
1354 int mii_status, phyx;
1355
1356 /*
1357 * For the 3c905CX we look at index 24 first, because it bogusly
1358 * reports an external PHY at all indices
1359 */
1360 if (phy == 0)
1361 phyx = 24;
1362 else if (phy <= 24)
1363 phyx = phy - 1;
1364 else
1365 phyx = phy;
Neil Horman106427e2005-11-07 00:58:03 -08001366 mii_status = mdio_read(dev, phyx, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367 if (mii_status && mii_status != 0xffff) {
1368 vp->phys[phy_idx++] = phyx;
1369 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001370 pr_info(" MII transceiver found at address %d, status %4x.\n",
1371 phyx, mii_status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 }
1373 if ((mii_status & 0x0040) == 0)
1374 mii_preamble_required++;
1375 }
1376 }
1377 mii_preamble_required--;
1378 if (phy_idx == 0) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001379 pr_warning(" ***WARNING*** No MII transceivers found!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380 vp->phys[0] = 24;
1381 } else {
Neil Horman106427e2005-11-07 00:58:03 -08001382 vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 if (vp->full_duplex) {
1384 /* Only advertise the FD media types. */
1385 vp->advertising &= ~0x02A0;
1386 mdio_write(dev, vp->phys[0], 4, vp->advertising);
1387 }
1388 }
1389 vp->mii.phy_id = vp->phys[0];
1390 }
1391
1392 if (vp->capabilities & CapBusMaster) {
1393 vp->full_bus_master_tx = 1;
1394 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001395 pr_info(" Enabling bus-master transmits and %s receives.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 (vp->info2 & 1) ? "early" : "whole-frame" );
1397 }
1398 vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
1399 vp->bus_master = 0; /* AKPM: vortex only */
1400 }
1401
1402 /* The 3c59x-specific entries in the device structure. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403 if (vp->full_bus_master_tx) {
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001404 dev->netdev_ops = &boomrang_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405 /* Actually, it still should work with iommu. */
John W. Linville32fb5f02005-11-07 00:58:05 -08001406 if (card_idx < MAX_UNITS &&
1407 ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
1408 hw_checksums[card_idx] == 1)) {
Stephen Hemmingerd311b0d2005-11-07 00:58:09 -08001409 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 }
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001411 } else
1412 dev->netdev_ops = &vortex_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413
1414 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001415 pr_info("%s: scatter/gather %sabled. h/w checksums %sabled\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 print_name,
1417 (dev->features & NETIF_F_SG) ? "en":"dis",
1418 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1419 }
1420
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421 dev->ethtool_ops = &vortex_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422 dev->watchdog_timeo = (watchdog * HZ) / 1000;
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 if (pdev) {
1425 vp->pm_state_valid = 1;
1426 pci_save_state(VORTEX_PCI(vp));
1427 acpi_set_WOL(dev);
1428 }
1429 retval = register_netdev(dev);
1430 if (retval == 0)
1431 return 0;
1432
1433free_ring:
1434 pci_free_consistent(pdev,
1435 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1436 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1437 vp->rx_ring,
1438 vp->rx_ring_dma);
1439free_region:
1440 if (vp->must_free_region)
John W. Linville62afe592005-11-07 00:58:02 -08001441 release_region(dev->base_addr, vci->io_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001442 free_netdev(dev);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001443 pr_err(PFX "vortex_probe1 fails. Returns %d\n", retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444out:
1445 return retval;
1446}
1447
1448static void
1449issue_and_wait(struct net_device *dev, int cmd)
1450{
John W. Linville62afe592005-11-07 00:58:02 -08001451 struct vortex_private *vp = netdev_priv(dev);
1452 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 int i;
1454
John W. Linville62afe592005-11-07 00:58:02 -08001455 iowrite16(cmd, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 for (i = 0; i < 2000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001457 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 return;
1459 }
1460
1461 /* OK, that didn't work. Do it the slow way. One second */
1462 for (i = 0; i < 100000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001463 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001465 pr_info("%s: command 0x%04x took %d usecs\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 dev->name, cmd, i * 10);
1467 return;
1468 }
1469 udelay(10);
1470 }
Alexander Beregalov39738e12009-05-26 12:35:26 +00001471 pr_err("%s: command 0x%04x did not complete! Status=0x%x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001472 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473}
1474
1475static void
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001476vortex_set_duplex(struct net_device *dev)
1477{
1478 struct vortex_private *vp = netdev_priv(dev);
1479 void __iomem *ioaddr = vp->ioaddr;
1480
Alexander Beregalov39738e12009-05-26 12:35:26 +00001481 pr_info("%s: setting %s-duplex.\n",
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001482 dev->name, (vp->full_duplex) ? "full" : "half");
1483
1484 EL3WINDOW(3);
1485 /* Set the full-duplex bit. */
1486 iowrite16(((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
1487 (vp->large_frames ? 0x40 : 0) |
1488 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
1489 0x100 : 0),
1490 ioaddr + Wn3_MAC_Ctrl);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001491}
1492
1493static void vortex_check_media(struct net_device *dev, unsigned int init)
1494{
1495 struct vortex_private *vp = netdev_priv(dev);
1496 unsigned int ok_to_print = 0;
1497
1498 if (vortex_debug > 3)
1499 ok_to_print = 1;
1500
1501 if (mii_check_media(&vp->mii, ok_to_print, init)) {
1502 vp->full_duplex = vp->mii.full_duplex;
1503 vortex_set_duplex(dev);
1504 } else if (init) {
1505 vortex_set_duplex(dev);
1506 }
1507}
1508
Mark Hindleyc8303d12007-08-16 11:28:40 +01001509static int
Linus Torvalds1da177e2005-04-16 15:20:36 -07001510vortex_up(struct net_device *dev)
1511{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001513 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001514 unsigned int config;
Badari Pulavarty0280f9f2007-10-17 16:15:56 -07001515 int i, mii_reg1, mii_reg5, err = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516
1517 if (VORTEX_PCI(vp)) {
1518 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001519 if (vp->pm_state_valid)
1520 pci_restore_state(VORTEX_PCI(vp));
Mark Hindleyc8303d12007-08-16 11:28:40 +01001521 err = pci_enable_device(VORTEX_PCI(vp));
1522 if (err) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001523 pr_warning("%s: Could not enable device\n",
Mark Hindleyc8303d12007-08-16 11:28:40 +01001524 dev->name);
1525 goto err_out;
1526 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527 }
1528
1529 /* Before initializing select the active media port. */
1530 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001531 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532
1533 if (vp->media_override != 7) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001534 pr_info("%s: Media override to transceiver %d (%s).\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535 dev->name, vp->media_override,
1536 media_tbl[vp->media_override].name);
1537 dev->if_port = vp->media_override;
1538 } else if (vp->autoselect) {
1539 if (vp->has_nway) {
1540 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001541 pr_info("%s: using NWAY device table, not %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542 dev->name, dev->if_port);
1543 dev->if_port = XCVR_NWAY;
1544 } else {
1545 /* Find first available media type, starting with 100baseTx. */
1546 dev->if_port = XCVR_100baseTx;
1547 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1548 dev->if_port = media_tbl[dev->if_port].next;
1549 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001550 pr_info("%s: first available media type: %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001551 dev->name, media_tbl[dev->if_port].name);
1552 }
1553 } else {
1554 dev->if_port = vp->default_media;
1555 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001556 pr_info("%s: using default media %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557 dev->name, media_tbl[dev->if_port].name);
1558 }
1559
1560 init_timer(&vp->timer);
1561 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1562 vp->timer.data = (unsigned long)dev;
1563 vp->timer.function = vortex_timer; /* timer handler */
1564 add_timer(&vp->timer);
1565
1566 init_timer(&vp->rx_oom_timer);
1567 vp->rx_oom_timer.data = (unsigned long)dev;
1568 vp->rx_oom_timer.function = rx_oom_timer;
1569
1570 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001571 pr_debug("%s: Initial media type %s.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572 dev->name, media_tbl[dev->if_port].name);
1573
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001574 vp->full_duplex = vp->mii.force_media;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575 config = BFINS(config, dev->if_port, 20, 4);
1576 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001577 pr_debug("vortex_up(): writing 0x%x to InternalConfig\n", config);
John W. Linville62afe592005-11-07 00:58:02 -08001578 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001579
1580 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001581 EL3WINDOW(4);
Steffen Klassert09ce3512006-03-31 02:30:48 -08001582 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1583 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
1584 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
Steffen Klassert373492d2007-08-10 14:05:26 -07001585 vp->mii.full_duplex = vp->full_duplex;
Steffen Klassert09ce3512006-03-31 02:30:48 -08001586
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001587 vortex_check_media(dev, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588 }
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001589 else
1590 vortex_set_duplex(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591
Steffen Klassert09ce3512006-03-31 02:30:48 -08001592 issue_and_wait(dev, TxReset);
1593 /*
1594 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1595 */
1596 issue_and_wait(dev, RxReset|0x04);
1597
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598
John W. Linville62afe592005-11-07 00:58:02 -08001599 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001600
1601 if (vortex_debug > 1) {
1602 EL3WINDOW(4);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001603 pr_debug("%s: vortex_up() irq %d media status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001604 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001605 }
1606
1607 /* Set the station address and mask in window 2 each time opened. */
1608 EL3WINDOW(2);
1609 for (i = 0; i < 6; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001610 iowrite8(dev->dev_addr[i], ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611 for (; i < 12; i+=2)
John W. Linville62afe592005-11-07 00:58:02 -08001612 iowrite16(0, ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613
1614 if (vp->cb_fn_base) {
John W. Linville62afe592005-11-07 00:58:02 -08001615 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616 if (vp->drv_flags & INVERT_LED_PWR)
1617 n |= 0x10;
1618 if (vp->drv_flags & INVERT_MII_PWR)
1619 n |= 0x4000;
John W. Linville62afe592005-11-07 00:58:02 -08001620 iowrite16(n, ioaddr + Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621 }
1622
1623 if (dev->if_port == XCVR_10base2)
1624 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001625 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001626 if (dev->if_port != XCVR_NWAY) {
1627 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001628 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001629 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1630 }
1631
1632 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001633 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634 EL3WINDOW(6);
1635 for (i = 0; i < 10; i++)
John W. Linville62afe592005-11-07 00:58:02 -08001636 ioread8(ioaddr + i);
1637 ioread16(ioaddr + 10);
1638 ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 /* New: On the Vortex we must also clear the BadSSD counter. */
1640 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001641 ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642 /* ..and on the Boomerang we enable the extra statistics bits. */
John W. Linville62afe592005-11-07 00:58:02 -08001643 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644
1645 /* Switch to register set 7 for normal use. */
1646 EL3WINDOW(7);
1647
1648 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1649 vp->cur_rx = vp->dirty_rx = 0;
1650 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001651 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1652 iowrite32(0x0020, ioaddr + PktStatus);
1653 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654 }
1655 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1656 vp->cur_tx = vp->dirty_tx = 0;
1657 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001658 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659 /* Clear the Rx, Tx rings. */
1660 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1661 vp->rx_ring[i].status = 0;
1662 for (i = 0; i < TX_RING_SIZE; i++)
1663 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001664 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001665 }
1666 /* Set receiver mode: presumably accept b-case and phys addr only. */
1667 set_rx_mode(dev);
1668 /* enable 802.1q tagged frames */
1669 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001670 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001671
John W. Linville62afe592005-11-07 00:58:02 -08001672 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1673 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001674 /* Allow status bits to be seen. */
1675 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1676 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1677 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1678 (vp->bus_master ? DMADone : 0);
1679 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1680 (vp->full_bus_master_rx ? 0 : RxComplete) |
1681 StatsFull | HostError | TxComplete | IntReq
1682 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001683 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001685 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001687 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001689 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690 netif_start_queue (dev);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001691err_out:
1692 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001693}
1694
1695static int
1696vortex_open(struct net_device *dev)
1697{
1698 struct vortex_private *vp = netdev_priv(dev);
1699 int i;
1700 int retval;
1701
1702 /* Use the now-standard shared IRQ implementation. */
1703 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
Thomas Gleixner1fb9df52006-07-01 19:29:39 -07001704 &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev))) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001705 pr_err("%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001706 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707 }
1708
1709 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1710 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001711 pr_debug("%s: Filling in the Rx ring.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712 for (i = 0; i < RX_RING_SIZE; i++) {
1713 struct sk_buff *skb;
1714 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1715 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1716 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07001717
1718 skb = __netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN,
1719 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001720 vp->rx_skbuff[i] = skb;
1721 if (skb == NULL)
1722 break; /* Bad news! */
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07001723
1724 skb_reserve(skb, NET_IP_ALIGN); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001725 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 -07001726 }
1727 if (i != RX_RING_SIZE) {
1728 int j;
Alexander Beregalov39738e12009-05-26 12:35:26 +00001729 pr_emerg("%s: no memory for rx ring\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 for (j = 0; j < i; j++) {
1731 if (vp->rx_skbuff[j]) {
1732 dev_kfree_skb(vp->rx_skbuff[j]);
1733 vp->rx_skbuff[j] = NULL;
1734 }
1735 }
1736 retval = -ENOMEM;
Mark Hindleyc8303d12007-08-16 11:28:40 +01001737 goto err_free_irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 }
1739 /* Wrap the ring. */
1740 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1741 }
1742
Mark Hindleyc8303d12007-08-16 11:28:40 +01001743 retval = vortex_up(dev);
1744 if (!retval)
1745 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001746
Mark Hindleyc8303d12007-08-16 11:28:40 +01001747err_free_irq:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748 free_irq(dev->irq, dev);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001749err:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001751 pr_err("%s: vortex_open() fails: returning %d\n", dev->name, retval);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001752out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001753 return retval;
1754}
1755
1756static void
1757vortex_timer(unsigned long data)
1758{
1759 struct net_device *dev = (struct net_device *)data;
1760 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001761 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762 int next_tick = 60*HZ;
1763 int ok = 0;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001764 int media_status, old_window;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765
1766 if (vortex_debug > 2) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001767 pr_debug("%s: Media selection timer tick happened, %s.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 dev->name, media_tbl[dev->if_port].name);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001769 pr_debug("dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 }
1771
Ingo Molnar0a9da4b2006-07-03 00:25:24 -07001772 disable_irq_lockdep(dev->irq);
John W. Linville62afe592005-11-07 00:58:02 -08001773 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001775 media_status = ioread16(ioaddr + Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 switch (dev->if_port) {
1777 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1778 if (media_status & Media_LnkBeat) {
1779 netif_carrier_on(dev);
1780 ok = 1;
1781 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001782 pr_debug("%s: Media %s has link beat, %x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783 dev->name, media_tbl[dev->if_port].name, media_status);
1784 } else {
1785 netif_carrier_off(dev);
1786 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001787 pr_debug("%s: Media %s has no link beat, %x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 dev->name, media_tbl[dev->if_port].name, media_status);
1789 }
1790 }
1791 break;
1792 case XCVR_MII: case XCVR_NWAY:
1793 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 ok = 1;
Ingo Molnarc5643ca2008-06-23 10:41:23 +02001795 /* Interrupts are already disabled */
1796 spin_lock(&vp->lock);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001797 vortex_check_media(dev, 0);
Ingo Molnarc5643ca2008-06-23 10:41:23 +02001798 spin_unlock(&vp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 }
1800 break;
1801 default: /* Other media types handled by Tx timeouts. */
1802 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001803 pr_debug("%s: Media %s has no indication, %x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804 dev->name, media_tbl[dev->if_port].name, media_status);
1805 ok = 1;
1806 }
Steffen Klassertb4ff6452006-03-26 01:37:40 -08001807
1808 if (!netif_carrier_ok(dev))
1809 next_tick = 5*HZ;
1810
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001811 if (vp->medialock)
1812 goto leave_media_alone;
1813
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001814 if (!ok) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815 unsigned int config;
1816
1817 do {
1818 dev->if_port = media_tbl[dev->if_port].next;
1819 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1820 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1821 dev->if_port = vp->default_media;
1822 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001823 pr_debug("%s: Media selection failing, using default %s port.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824 dev->name, media_tbl[dev->if_port].name);
1825 } else {
1826 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001827 pr_debug("%s: Media selection failed, now trying %s port.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828 dev->name, media_tbl[dev->if_port].name);
1829 next_tick = media_tbl[dev->if_port].wait;
1830 }
John W. Linville62afe592005-11-07 00:58:02 -08001831 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1833
1834 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08001835 config = ioread32(ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836 config = BFINS(config, dev->if_port, 20, 4);
John W. Linville62afe592005-11-07 00:58:02 -08001837 iowrite32(config, ioaddr + Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838
John W. Linville62afe592005-11-07 00:58:02 -08001839 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840 ioaddr + EL3_CMD);
1841 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001842 pr_debug("wrote 0x%08x to Wn3_Config\n", config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1844 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845
1846leave_media_alone:
1847 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001848 pr_debug("%s: Media selection timer finished, %s.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849 dev->name, media_tbl[dev->if_port].name);
1850
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001851 EL3WINDOW(old_window);
Ingo Molnar0a9da4b2006-07-03 00:25:24 -07001852 enable_irq_lockdep(dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001853 mod_timer(&vp->timer, RUN_AT(next_tick));
1854 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001855 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856 return;
1857}
1858
1859static void vortex_tx_timeout(struct net_device *dev)
1860{
1861 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001862 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863
Alexander Beregalov39738e12009-05-26 12:35:26 +00001864 pr_err("%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001865 dev->name, ioread8(ioaddr + TxStatus),
1866 ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867 EL3WINDOW(4);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001868 pr_err(" diagnostics: net %04x media %04x dma %08x fifo %04x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001869 ioread16(ioaddr + Wn4_NetDiag),
1870 ioread16(ioaddr + Wn4_Media),
1871 ioread32(ioaddr + PktStatus),
1872 ioread16(ioaddr + Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001873 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08001874 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001875 pr_err("%s: Transmitter encountered 16 collisions --"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08001877 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001878 pr_err("%s: Interrupt posted but not delivered --"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001879 " IRQ blocked by another device?\n", dev->name);
1880 /* Bad idea here.. but we might as well handle a few events. */
1881 {
1882 /*
1883 * Block interrupts because vortex_interrupt does a bare spin_lock()
1884 */
1885 unsigned long flags;
1886 local_irq_save(flags);
1887 if (vp->full_bus_master_tx)
David Howells7d12e782006-10-05 14:55:46 +01001888 boomerang_interrupt(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001889 else
David Howells7d12e782006-10-05 14:55:46 +01001890 vortex_interrupt(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891 local_irq_restore(flags);
1892 }
1893 }
1894
1895 if (vortex_debug > 0)
1896 dump_tx_ring(dev);
1897
1898 issue_and_wait(dev, TxReset);
1899
Paulius Zaleckas1daad052008-05-05 14:01:29 +02001900 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901 if (vp->full_bus_master_tx) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001902 pr_debug("%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08001903 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
1904 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905 ioaddr + DownListPtr);
1906 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
1907 netif_wake_queue (dev);
1908 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001909 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
1910 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911 } else {
Paulius Zaleckas1daad052008-05-05 14:01:29 +02001912 dev->stats.tx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913 netif_wake_queue(dev);
1914 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001915
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08001917 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001918 dev->trans_start = jiffies;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001919
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920 /* Switch to register set 7 for normal use. */
1921 EL3WINDOW(7);
1922}
1923
1924/*
1925 * Handle uncommon interrupt sources. This is a separate routine to minimize
1926 * the cache impact.
1927 */
1928static void
1929vortex_error(struct net_device *dev, int status)
1930{
1931 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001932 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933 int do_tx_reset = 0, reset_mask = 0;
1934 unsigned char tx_status = 0;
1935
1936 if (vortex_debug > 2) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001937 pr_err("%s: vortex_error(), status=0x%x\n", dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001938 }
1939
1940 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08001941 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001942 /* Presumably a tx-timeout. We must merely re-enable. */
1943 if (vortex_debug > 2
1944 || (tx_status != 0x88 && vortex_debug > 0)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001945 pr_err("%s: Transmit error, Tx status register %2.2x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001946 dev->name, tx_status);
1947 if (tx_status == 0x82) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001948 pr_err("Probably a duplex mismatch. See "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949 "Documentation/networking/vortex.txt\n");
1950 }
1951 dump_tx_ring(dev);
1952 }
Paulius Zaleckas1daad052008-05-05 14:01:29 +02001953 if (tx_status & 0x14) dev->stats.tx_fifo_errors++;
1954 if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
Andrew Morton00007542006-03-31 02:30:47 -08001955 if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
John W. Linville62afe592005-11-07 00:58:02 -08001956 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957 if (tx_status & 0x30) { /* txJabber or txUnderrun */
1958 do_tx_reset = 1;
Andrew Morton00007542006-03-31 02:30:47 -08001959 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
1960 do_tx_reset = 1;
1961 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
1962 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08001963 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964 }
1965 }
1966
1967 if (status & RxEarly) { /* Rx early is unused. */
1968 vortex_rx(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001969 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970 }
1971 if (status & StatsFull) { /* Empty statistics. */
1972 static int DoneDidThat;
1973 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001974 pr_debug("%s: Updating stats.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975 update_stats(ioaddr, dev);
1976 /* HACK: Disable statistics as an interrupt source. */
1977 /* This occurs when we have the wrong media type! */
1978 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08001979 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001980 pr_warning("%s: Updating statistics failed, disabling "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001981 "stats as an interrupt source.\n", dev->name);
1982 EL3WINDOW(5);
John W. Linville62afe592005-11-07 00:58:02 -08001983 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984 vp->intr_enable &= ~StatsFull;
1985 EL3WINDOW(7);
1986 DoneDidThat++;
1987 }
1988 }
1989 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08001990 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
1991 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 }
1993 if (status & HostError) {
1994 u16 fifo_diag;
1995 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08001996 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001997 pr_err("%s: Host error, FIFO diagnostic register %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998 dev->name, fifo_diag);
1999 /* Adapter failure requires Tx/Rx reset and reinit. */
2000 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08002001 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002 /* 0x80000000 PCI master abort. */
2003 /* 0x40000000 PCI target abort. */
2004 if (vortex_debug)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002005 pr_err("%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002006
2007 /* In this case, blow the card away */
2008 /* Must not enter D3 or we can't legally issue the reset! */
2009 vortex_down(dev, 0);
2010 issue_and_wait(dev, TotalReset | 0xff);
2011 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
2012 } else if (fifo_diag & 0x0400)
2013 do_tx_reset = 1;
2014 if (fifo_diag & 0x3000) {
2015 /* Reset Rx fifo and upload logic */
2016 issue_and_wait(dev, RxReset|0x07);
2017 /* Set the Rx filter to the current state. */
2018 set_rx_mode(dev);
2019 /* enable 802.1q VLAN tagged frames */
2020 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08002021 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2022 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023 }
2024 }
2025
2026 if (do_tx_reset) {
2027 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08002028 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029 if (!vp->full_bus_master_tx)
2030 netif_wake_queue(dev);
2031 }
2032}
2033
2034static int
2035vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2036{
2037 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002038 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039
2040 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002041 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 if (vp->bus_master) {
2043 /* Set the bus-master controller to transfer the packet. */
2044 int len = (skb->len + 3) & ~3;
Steffen Klasserta880c4c2006-03-26 01:37:43 -08002045 iowrite32(vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046 ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002047 iowrite16(len, ioaddr + Wn7_MasterLen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002049 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050 /* netif_wake_queue() will be called at the DMADone interrupt. */
2051 } else {
2052 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002053 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002055 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002056 netif_start_queue (dev); /* AKPM: redundant? */
2057 } else {
2058 /* Interrupt us when the FIFO has room for max-sized packet. */
2059 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002060 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002061 }
2062 }
2063
2064 dev->trans_start = jiffies;
2065
2066 /* Clear the Tx status stack. */
2067 {
2068 int tx_status;
2069 int i = 32;
2070
John W. Linville62afe592005-11-07 00:58:02 -08002071 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2073 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002074 pr_debug("%s: Tx error, status %2.2x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075 dev->name, tx_status);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002076 if (tx_status & 0x04) dev->stats.tx_fifo_errors++;
2077 if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078 if (tx_status & 0x30) {
2079 issue_and_wait(dev, TxReset);
2080 }
John W. Linville62afe592005-11-07 00:58:02 -08002081 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082 }
John W. Linville62afe592005-11-07 00:58:02 -08002083 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002084 }
2085 }
2086 return 0;
2087}
2088
2089static int
2090boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2091{
2092 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002093 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002094 /* Calculate the next Tx descriptor entry. */
2095 int entry = vp->cur_tx % TX_RING_SIZE;
2096 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2097 unsigned long flags;
2098
2099 if (vortex_debug > 6) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002100 pr_debug("boomerang_start_xmit()\n");
2101 pr_debug("%s: Trying to send a packet, Tx index %d.\n",
John W. Linville0f667ff2005-06-21 17:15:14 -07002102 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103 }
2104
2105 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2106 if (vortex_debug > 0)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002107 pr_warning("%s: BUG! Tx Ring full, refusing to send buffer.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 dev->name);
2109 netif_stop_queue(dev);
Patrick McHardy5b548142009-06-12 06:22:29 +00002110 return NETDEV_TX_BUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 }
2112
2113 vp->tx_skbuff[entry] = skb;
2114
2115 vp->tx_ring[entry].next = 0;
2116#if DO_ZEROCOPY
Patrick McHardy84fa7932006-08-29 16:44:56 -07002117 if (skb->ip_summed != CHECKSUM_PARTIAL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2119 else
2120 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2121
2122 if (!skb_shinfo(skb)->nr_frags) {
2123 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2124 skb->len, PCI_DMA_TODEVICE));
2125 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2126 } else {
2127 int i;
2128
2129 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2130 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2131 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2132
2133 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2134 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2135
2136 vp->tx_ring[entry].frag[i+1].addr =
2137 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2138 (void*)page_address(frag->page) + frag->page_offset,
2139 frag->size, PCI_DMA_TODEVICE));
2140
2141 if (i == skb_shinfo(skb)->nr_frags-1)
2142 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2143 else
2144 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2145 }
2146 }
2147#else
2148 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2149 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2150 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2151#endif
2152
2153 spin_lock_irqsave(&vp->lock, flags);
2154 /* Wait for the stall to complete. */
2155 issue_and_wait(dev, DownStall);
2156 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002157 if (ioread32(ioaddr + DownListPtr) == 0) {
2158 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159 vp->queued_packet++;
2160 }
2161
2162 vp->cur_tx++;
2163 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2164 netif_stop_queue (dev);
2165 } else { /* Clear previous interrupt enable. */
2166#if defined(tx_interrupt_mitigation)
2167 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2168 * were selected, this would corrupt DN_COMPLETE. No?
2169 */
2170 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2171#endif
2172 }
John W. Linville62afe592005-11-07 00:58:02 -08002173 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174 spin_unlock_irqrestore(&vp->lock, flags);
2175 dev->trans_start = jiffies;
2176 return 0;
2177}
2178
2179/* The interrupt handler does all of the Rx thread work and cleans up
2180 after the Tx thread. */
2181
2182/*
2183 * This is the ISR for the vortex series chips.
2184 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2185 */
2186
2187static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01002188vortex_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189{
2190 struct net_device *dev = dev_id;
2191 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002192 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 int status;
2194 int work_done = max_interrupt_work;
2195 int handled = 0;
2196
John W. Linville62afe592005-11-07 00:58:02 -08002197 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198 spin_lock(&vp->lock);
2199
John W. Linville62afe592005-11-07 00:58:02 -08002200 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201
2202 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002203 pr_debug("vortex_interrupt(). status=0x%4x\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204
2205 if ((status & IntLatch) == 0)
2206 goto handler_exit; /* No interrupt: shared IRQs cause this */
2207 handled = 1;
2208
2209 if (status & IntReq) {
2210 status |= vp->deferred;
2211 vp->deferred = 0;
2212 }
2213
2214 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2215 goto handler_exit;
2216
2217 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002218 pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002219 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220
2221 do {
2222 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002223 pr_debug("%s: In interrupt loop, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224 dev->name, status);
2225 if (status & RxComplete)
2226 vortex_rx(dev);
2227
2228 if (status & TxAvailable) {
2229 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002230 pr_debug(" TX room bit was handled.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002232 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233 netif_wake_queue (dev);
2234 }
2235
2236 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002237 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2238 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2240 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002241 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002242 /*
2243 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2244 * insufficient FIFO room, the TxAvailable test will succeed and call
2245 * netif_wake_queue()
2246 */
2247 netif_wake_queue(dev);
2248 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002249 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250 netif_stop_queue(dev);
2251 }
2252 }
2253 }
2254 /* Check for all uncommon interrupts at once. */
2255 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2256 if (status == 0xffff)
2257 break;
2258 vortex_error(dev, status);
2259 }
2260
2261 if (--work_done < 0) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002262 pr_warning("%s: Too much work in interrupt, status %4.4x.\n",
2263 dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264 /* Disable all pending interrupts. */
2265 do {
2266 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002267 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002269 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2270 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271 /* The timer will reenable interrupts. */
2272 mod_timer(&vp->timer, jiffies + 1*HZ);
2273 break;
2274 }
2275 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002276 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2277 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278
2279 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002280 pr_debug("%s: exiting interrupt, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281 dev->name, status);
2282handler_exit:
2283 spin_unlock(&vp->lock);
2284 return IRQ_RETVAL(handled);
2285}
2286
2287/*
2288 * This is the ISR for the boomerang series chips.
2289 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2290 */
2291
2292static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01002293boomerang_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002294{
2295 struct net_device *dev = dev_id;
2296 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002297 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002298 int status;
2299 int work_done = max_interrupt_work;
2300
John W. Linville62afe592005-11-07 00:58:02 -08002301 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002302
2303 /*
2304 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2305 * and boomerang_start_xmit
2306 */
2307 spin_lock(&vp->lock);
2308
John W. Linville62afe592005-11-07 00:58:02 -08002309 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002310
2311 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002312 pr_debug("boomerang_interrupt. status=0x%4x\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002313
2314 if ((status & IntLatch) == 0)
2315 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2316
2317 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2318 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002319 pr_debug("boomerang_interrupt(1): status = 0xffff\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320 goto handler_exit;
2321 }
2322
2323 if (status & IntReq) {
2324 status |= vp->deferred;
2325 vp->deferred = 0;
2326 }
2327
2328 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002329 pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002330 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331 do {
2332 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002333 pr_debug("%s: In interrupt loop, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002334 dev->name, status);
2335 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002336 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002338 pr_debug("boomerang_interrupt->boomerang_rx\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339 boomerang_rx(dev);
2340 }
2341
2342 if (status & DownComplete) {
2343 unsigned int dirty_tx = vp->dirty_tx;
2344
John W. Linville62afe592005-11-07 00:58:02 -08002345 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346 while (vp->cur_tx - dirty_tx > 0) {
2347 int entry = dirty_tx % TX_RING_SIZE;
2348#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002349 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002350 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2351 break; /* It still hasn't been processed. */
2352#else
2353 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2354 break; /* It still hasn't been processed. */
2355#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002356
Linus Torvalds1da177e2005-04-16 15:20:36 -07002357 if (vp->tx_skbuff[entry]) {
2358 struct sk_buff *skb = vp->tx_skbuff[entry];
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002359#if DO_ZEROCOPY
Linus Torvalds1da177e2005-04-16 15:20:36 -07002360 int i;
2361 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2362 pci_unmap_single(VORTEX_PCI(vp),
2363 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2364 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2365 PCI_DMA_TODEVICE);
2366#else
2367 pci_unmap_single(VORTEX_PCI(vp),
2368 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2369#endif
2370 dev_kfree_skb_irq(skb);
2371 vp->tx_skbuff[entry] = NULL;
2372 } else {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002373 pr_debug("boomerang_interrupt: no skb!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002374 }
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002375 /* dev->stats.tx_packets++; Counted below. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002376 dirty_tx++;
2377 }
2378 vp->dirty_tx = dirty_tx;
2379 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2380 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002381 pr_debug("boomerang_interrupt: wake queue\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002382 netif_wake_queue (dev);
2383 }
2384 }
2385
2386 /* Check for all uncommon interrupts at once. */
2387 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2388 vortex_error(dev, status);
2389
2390 if (--work_done < 0) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002391 pr_warning("%s: Too much work in interrupt, status %4.4x.\n",
2392 dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393 /* Disable all pending interrupts. */
2394 do {
2395 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002396 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002397 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002398 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2399 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400 /* The timer will reenable interrupts. */
2401 mod_timer(&vp->timer, jiffies + 1*HZ);
2402 break;
2403 }
2404 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002405 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002406 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002407 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002408
John W. Linville62afe592005-11-07 00:58:02 -08002409 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002410
2411 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002412 pr_debug("%s: exiting interrupt, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002413 dev->name, status);
2414handler_exit:
2415 spin_unlock(&vp->lock);
2416 return IRQ_HANDLED;
2417}
2418
2419static int vortex_rx(struct net_device *dev)
2420{
2421 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002422 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002423 int i;
2424 short rx_status;
2425
2426 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002427 pr_debug("vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002428 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2429 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002431 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002433 pr_debug(" Rx error: status %2.2x.\n", rx_error);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002434 dev->stats.rx_errors++;
2435 if (rx_error & 0x01) dev->stats.rx_over_errors++;
2436 if (rx_error & 0x02) dev->stats.rx_length_errors++;
2437 if (rx_error & 0x04) dev->stats.rx_frame_errors++;
2438 if (rx_error & 0x08) dev->stats.rx_crc_errors++;
2439 if (rx_error & 0x10) dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002440 } else {
2441 /* The packet length: up to 4.5K!. */
2442 int pkt_len = rx_status & 0x1fff;
2443 struct sk_buff *skb;
2444
2445 skb = dev_alloc_skb(pkt_len + 5);
2446 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002447 pr_debug("Receiving packet size %d status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002448 pkt_len, rx_status);
2449 if (skb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2451 /* 'skb_put()' points to the start of sk_buff data area. */
2452 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002453 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002454 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2455 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002456 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2457 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2458 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2459 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460 ;
2461 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2462 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002463 ioread32_rep(ioaddr + RX_FIFO,
2464 skb_put(skb, pkt_len),
2465 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002466 }
John W. Linville62afe592005-11-07 00:58:02 -08002467 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002468 skb->protocol = eth_type_trans(skb, dev);
2469 netif_rx(skb);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002470 dev->stats.rx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002471 /* Wait a limited time to go to next packet. */
2472 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002473 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002474 break;
2475 continue;
2476 } else if (vortex_debug > 0)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002477 pr_notice("%s: No memory to allocate a sk_buff of size %d.\n",
2478 dev->name, pkt_len);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002479 dev->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002480 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002481 issue_and_wait(dev, RxDiscard);
2482 }
2483
2484 return 0;
2485}
2486
2487static int
2488boomerang_rx(struct net_device *dev)
2489{
2490 struct vortex_private *vp = netdev_priv(dev);
2491 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002492 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002493 int rx_status;
2494 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2495
2496 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002497 pr_debug("boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002498
2499 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2500 if (--rx_work_limit < 0)
2501 break;
2502 if (rx_status & RxDError) { /* Error, update stats. */
2503 unsigned char rx_error = rx_status >> 16;
2504 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002505 pr_debug(" Rx error: status %2.2x.\n", rx_error);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002506 dev->stats.rx_errors++;
2507 if (rx_error & 0x01) dev->stats.rx_over_errors++;
2508 if (rx_error & 0x02) dev->stats.rx_length_errors++;
2509 if (rx_error & 0x04) dev->stats.rx_frame_errors++;
2510 if (rx_error & 0x08) dev->stats.rx_crc_errors++;
2511 if (rx_error & 0x10) dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512 } else {
2513 /* The packet length: up to 4.5K!. */
2514 int pkt_len = rx_status & 0x1fff;
2515 struct sk_buff *skb;
2516 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2517
2518 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002519 pr_debug("Receiving packet size %d status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002520 pkt_len, rx_status);
2521
2522 /* Check if the packet is long enough to just accept without
2523 copying to a properly sized skbuff. */
Al Virocc2d6592007-08-22 21:34:46 -04002524 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2526 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2527 /* 'skb_put()' points to the start of sk_buff data area. */
2528 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002529 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002530 pkt_len);
2531 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2532 vp->rx_copy++;
2533 } else {
2534 /* Pass up the skbuff already on the Rx ring. */
2535 skb = vp->rx_skbuff[entry];
2536 vp->rx_skbuff[entry] = NULL;
2537 skb_put(skb, pkt_len);
2538 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2539 vp->rx_nocopy++;
2540 }
2541 skb->protocol = eth_type_trans(skb, dev);
2542 { /* Use hardware checksum info. */
2543 int csum_bits = rx_status & 0xee000000;
2544 if (csum_bits &&
2545 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2546 csum_bits == (IPChksumValid | UDPChksumValid))) {
2547 skb->ip_summed = CHECKSUM_UNNECESSARY;
2548 vp->rx_csumhits++;
2549 }
2550 }
2551 netif_rx(skb);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002552 dev->stats.rx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002553 }
2554 entry = (++vp->cur_rx) % RX_RING_SIZE;
2555 }
2556 /* Refill the Rx ring buffers. */
2557 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2558 struct sk_buff *skb;
2559 entry = vp->dirty_rx % RX_RING_SIZE;
2560 if (vp->rx_skbuff[entry] == NULL) {
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07002561 skb = netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002562 if (skb == NULL) {
2563 static unsigned long last_jif;
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -08002564 if (time_after(jiffies, last_jif + 10 * HZ)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002565 pr_warning("%s: memory shortage\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002566 last_jif = jiffies;
2567 }
2568 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2569 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2570 break; /* Bad news! */
2571 }
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07002572
2573 skb_reserve(skb, NET_IP_ALIGN);
David S. Miller689be432005-06-28 15:25:31 -07002574 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 -07002575 vp->rx_skbuff[entry] = skb;
2576 }
2577 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002578 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002579 }
2580 return 0;
2581}
2582
2583/*
2584 * If we've hit a total OOM refilling the Rx ring we poll once a second
2585 * for some memory. Otherwise there is no way to restart the rx process.
2586 */
2587static void
2588rx_oom_timer(unsigned long arg)
2589{
2590 struct net_device *dev = (struct net_device *)arg;
2591 struct vortex_private *vp = netdev_priv(dev);
2592
2593 spin_lock_irq(&vp->lock);
2594 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2595 boomerang_rx(dev);
2596 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002597 pr_debug("%s: rx_oom_timer %s\n", dev->name,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2599 }
2600 spin_unlock_irq(&vp->lock);
2601}
2602
2603static void
2604vortex_down(struct net_device *dev, int final_down)
2605{
2606 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002607 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002608
2609 netif_stop_queue (dev);
2610
2611 del_timer_sync(&vp->rx_oom_timer);
2612 del_timer_sync(&vp->timer);
2613
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002614 /* Turn off statistics ASAP. We update dev->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002615 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002616
2617 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002618 iowrite16(RxDisable, ioaddr + EL3_CMD);
2619 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002620
2621 /* Disable receiving 802.1q tagged frames */
2622 set_8021q_mode(dev, 0);
2623
2624 if (dev->if_port == XCVR_10base2)
2625 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002626 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002627
John W. Linville62afe592005-11-07 00:58:02 -08002628 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629
2630 update_stats(ioaddr, dev);
2631 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002632 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002633 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002634 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002635
2636 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002637 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002638 pci_save_state(VORTEX_PCI(vp));
2639 acpi_set_WOL(dev);
2640 }
2641}
2642
2643static int
2644vortex_close(struct net_device *dev)
2645{
2646 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002647 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648 int i;
2649
2650 if (netif_device_present(dev))
2651 vortex_down(dev, 1);
2652
2653 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002654 pr_debug("%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002655 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Alexander Beregalov39738e12009-05-26 12:35:26 +00002656 pr_debug("%s: vortex close stats: rx_nocopy %d rx_copy %d"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002657 " tx_queued %d Rx pre-checksummed %d.\n",
2658 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2659 }
2660
2661#if DO_ZEROCOPY
John W. Linville32fb5f02005-11-07 00:58:05 -08002662 if (vp->rx_csumhits &&
2663 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2664 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002665 pr_warning("%s supports hardware checksums, and we're not using them!\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002666 }
2667#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002668
Linus Torvalds1da177e2005-04-16 15:20:36 -07002669 free_irq(dev->irq, dev);
2670
2671 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2672 for (i = 0; i < RX_RING_SIZE; i++)
2673 if (vp->rx_skbuff[i]) {
2674 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2675 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2676 dev_kfree_skb(vp->rx_skbuff[i]);
2677 vp->rx_skbuff[i] = NULL;
2678 }
2679 }
2680 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2681 for (i = 0; i < TX_RING_SIZE; i++) {
2682 if (vp->tx_skbuff[i]) {
2683 struct sk_buff *skb = vp->tx_skbuff[i];
2684#if DO_ZEROCOPY
2685 int k;
2686
2687 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2688 pci_unmap_single(VORTEX_PCI(vp),
2689 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2690 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2691 PCI_DMA_TODEVICE);
2692#else
2693 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2694#endif
2695 dev_kfree_skb(skb);
2696 vp->tx_skbuff[i] = NULL;
2697 }
2698 }
2699 }
2700
2701 return 0;
2702}
2703
2704static void
2705dump_tx_ring(struct net_device *dev)
2706{
2707 if (vortex_debug > 0) {
2708 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002709 void __iomem *ioaddr = vp->ioaddr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002710
Linus Torvalds1da177e2005-04-16 15:20:36 -07002711 if (vp->full_bus_master_tx) {
2712 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002713 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002714
Alexander Beregalov39738e12009-05-26 12:35:26 +00002715 pr_err(" Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002716 vp->full_bus_master_tx,
2717 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2718 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
Alexander Beregalov39738e12009-05-26 12:35:26 +00002719 pr_err(" Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002720 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002721 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2722 issue_and_wait(dev, DownStall);
2723 for (i = 0; i < TX_RING_SIZE; i++) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002724 pr_err(" %d: @%p length %8.8x status %8.8x\n", i,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002725 &vp->tx_ring[i],
2726#if DO_ZEROCOPY
2727 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2728#else
2729 le32_to_cpu(vp->tx_ring[i].length),
2730#endif
2731 le32_to_cpu(vp->tx_ring[i].status));
2732 }
2733 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002734 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002735 }
2736 }
2737}
2738
2739static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2740{
2741 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002742 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002743 unsigned long flags;
2744
2745 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2746 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002747 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002748 spin_unlock_irqrestore (&vp->lock, flags);
2749 }
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002750 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002751}
2752
2753/* Update statistics.
2754 Unlike with the EL3 we need not worry about interrupts changing
2755 the window setting from underneath us, but we must still guard
2756 against a race condition with a StatsUpdate interrupt updating the
2757 table. This is done by checking that the ASM (!) code generated uses
2758 atomic updates with '+='.
2759 */
John W. Linville62afe592005-11-07 00:58:02 -08002760static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002761{
2762 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002763 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002764
2765 if (old_window == 0xffff) /* Chip suspended or ejected. */
2766 return;
2767 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2768 /* Switch to the stats window, and read everything. */
2769 EL3WINDOW(6);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002770 dev->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2771 dev->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
2772 dev->stats.tx_window_errors += ioread8(ioaddr + 4);
2773 dev->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2774 dev->stats.tx_packets += ioread8(ioaddr + 6);
2775 dev->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
John W. Linville62afe592005-11-07 00:58:02 -08002776 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002777 /* Don't bother with register 9, an extension of registers 6&7.
2778 If we do use the 6&7 values the atomic update assumption above
2779 is invalid. */
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002780 dev->stats.rx_bytes += ioread16(ioaddr + 10);
2781 dev->stats.tx_bytes += ioread16(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002782 /* Extra stats for get_ethtool_stats() */
John W. Linville62afe592005-11-07 00:58:02 -08002783 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002784 vp->xstats.tx_single_collisions += ioread8(ioaddr + 3);
John W. Linville62afe592005-11-07 00:58:02 -08002785 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002786 EL3WINDOW(4);
John W. Linville62afe592005-11-07 00:58:02 -08002787 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002788
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002789 dev->stats.collisions = vp->xstats.tx_multiple_collisions
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002790 + vp->xstats.tx_single_collisions
2791 + vp->xstats.tx_max_collisions;
2792
Linus Torvalds1da177e2005-04-16 15:20:36 -07002793 {
John W. Linville62afe592005-11-07 00:58:02 -08002794 u8 up = ioread8(ioaddr + 13);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002795 dev->stats.rx_bytes += (up & 0x0f) << 16;
2796 dev->stats.tx_bytes += (up & 0xf0) << 12;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002797 }
2798
2799 EL3WINDOW(old_window >> 13);
2800 return;
2801}
2802
2803static int vortex_nway_reset(struct net_device *dev)
2804{
2805 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002806 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002807 unsigned long flags;
2808 int rc;
2809
2810 spin_lock_irqsave(&vp->lock, flags);
2811 EL3WINDOW(4);
2812 rc = mii_nway_restart(&vp->mii);
2813 spin_unlock_irqrestore(&vp->lock, flags);
2814 return rc;
2815}
2816
Linus Torvalds1da177e2005-04-16 15:20:36 -07002817static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2818{
2819 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002820 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002821 unsigned long flags;
2822 int rc;
2823
2824 spin_lock_irqsave(&vp->lock, flags);
2825 EL3WINDOW(4);
2826 rc = mii_ethtool_gset(&vp->mii, cmd);
2827 spin_unlock_irqrestore(&vp->lock, flags);
2828 return rc;
2829}
2830
2831static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2832{
2833 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002834 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002835 unsigned long flags;
2836 int rc;
2837
2838 spin_lock_irqsave(&vp->lock, flags);
2839 EL3WINDOW(4);
2840 rc = mii_ethtool_sset(&vp->mii, cmd);
2841 spin_unlock_irqrestore(&vp->lock, flags);
2842 return rc;
2843}
2844
2845static u32 vortex_get_msglevel(struct net_device *dev)
2846{
2847 return vortex_debug;
2848}
2849
2850static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2851{
2852 vortex_debug = dbg;
2853}
2854
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002855static int vortex_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856{
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002857 switch (sset) {
2858 case ETH_SS_STATS:
2859 return VORTEX_NUM_STATS;
2860 default:
2861 return -EOPNOTSUPP;
2862 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002863}
2864
2865static void vortex_get_ethtool_stats(struct net_device *dev,
2866 struct ethtool_stats *stats, u64 *data)
2867{
2868 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002869 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002870 unsigned long flags;
2871
2872 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002873 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002874 spin_unlock_irqrestore(&vp->lock, flags);
2875
2876 data[0] = vp->xstats.tx_deferred;
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002877 data[1] = vp->xstats.tx_max_collisions;
2878 data[2] = vp->xstats.tx_multiple_collisions;
2879 data[3] = vp->xstats.tx_single_collisions;
2880 data[4] = vp->xstats.rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002881}
2882
2883
2884static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
2885{
2886 switch (stringset) {
2887 case ETH_SS_STATS:
2888 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
2889 break;
2890 default:
2891 WARN_ON(1);
2892 break;
2893 }
2894}
2895
2896static void vortex_get_drvinfo(struct net_device *dev,
2897 struct ethtool_drvinfo *info)
2898{
2899 struct vortex_private *vp = netdev_priv(dev);
2900
2901 strcpy(info->driver, DRV_NAME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002902 if (VORTEX_PCI(vp)) {
2903 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
2904 } else {
2905 if (VORTEX_EISA(vp))
Stephen Hemminger86de79b2009-02-26 10:19:24 +00002906 strcpy(info->bus_info, dev_name(vp->gendev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002907 else
2908 sprintf(info->bus_info, "EISA 0x%lx %d",
2909 dev->base_addr, dev->irq);
2910 }
2911}
2912
Jeff Garzik7282d492006-09-13 14:30:00 -04002913static const struct ethtool_ops vortex_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002914 .get_drvinfo = vortex_get_drvinfo,
2915 .get_strings = vortex_get_strings,
2916 .get_msglevel = vortex_get_msglevel,
2917 .set_msglevel = vortex_set_msglevel,
2918 .get_ethtool_stats = vortex_get_ethtool_stats,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002919 .get_sset_count = vortex_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002920 .get_settings = vortex_get_settings,
2921 .set_settings = vortex_set_settings,
Steffen Klassert373a6882006-03-26 01:37:41 -08002922 .get_link = ethtool_op_get_link,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002923 .nway_reset = vortex_nway_reset,
2924};
2925
2926#ifdef CONFIG_PCI
2927/*
2928 * Must power the device up to do MDIO operations
2929 */
2930static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2931{
2932 int err;
2933 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002934 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002935 unsigned long flags;
Al Virocc2d6592007-08-22 21:34:46 -04002936 pci_power_t state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002937
2938 if(VORTEX_PCI(vp))
2939 state = VORTEX_PCI(vp)->current_state;
2940
2941 /* The kernel core really should have pci_get_power_state() */
2942
2943 if(state != 0)
2944 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
2945 spin_lock_irqsave(&vp->lock, flags);
2946 EL3WINDOW(4);
2947 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
2948 spin_unlock_irqrestore(&vp->lock, flags);
2949 if(state != 0)
2950 pci_set_power_state(VORTEX_PCI(vp), state);
2951
2952 return err;
2953}
2954#endif
2955
2956
2957/* Pre-Cyclone chips have no documented multicast filter, so the only
2958 multicast setting is to receive all multicast frames. At least
2959 the chip has a very clean way to set the mode, unlike many others. */
2960static void set_rx_mode(struct net_device *dev)
2961{
John W. Linville62afe592005-11-07 00:58:02 -08002962 struct vortex_private *vp = netdev_priv(dev);
2963 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002964 int new_mode;
2965
2966 if (dev->flags & IFF_PROMISC) {
Andy Gospodarekd5b20692006-09-11 17:39:18 -04002967 if (vortex_debug > 3)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002968 pr_notice("%s: Setting promiscuous mode.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002969 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
2970 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
2971 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
2972 } else
2973 new_mode = SetRxFilter | RxStation | RxBroadcast;
2974
John W. Linville62afe592005-11-07 00:58:02 -08002975 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002976}
2977
2978#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
2979/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
2980 Note that this must be done after each RxReset due to some backwards
2981 compatibility logic in the Cyclone and Tornado ASICs */
2982
2983/* The Ethernet Type used for 802.1q tagged frames */
2984#define VLAN_ETHER_TYPE 0x8100
2985
2986static void set_8021q_mode(struct net_device *dev, int enable)
2987{
2988 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002989 void __iomem *ioaddr = vp->ioaddr;
2990 int old_window = ioread16(ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002991 int mac_ctrl;
2992
2993 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
2994 /* cyclone and tornado chipsets can recognize 802.1q
2995 * tagged frames and treat them correctly */
2996
2997 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
2998 if (enable)
2999 max_pkt_size += 4; /* 802.1Q VLAN tag */
3000
3001 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003002 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003003
3004 /* set VlanEtherType to let the hardware checksumming
3005 treat tagged frames correctly */
3006 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003007 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008 } else {
3009 /* on older cards we have to enable large frames */
3010
3011 vp->large_frames = dev->mtu > 1500 || enable;
3012
3013 EL3WINDOW(3);
John W. Linville62afe592005-11-07 00:58:02 -08003014 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003015 if (vp->large_frames)
3016 mac_ctrl |= 0x40;
3017 else
3018 mac_ctrl &= ~0x40;
John W. Linville62afe592005-11-07 00:58:02 -08003019 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003020 }
3021
3022 EL3WINDOW(old_window);
3023}
3024#else
3025
3026static void set_8021q_mode(struct net_device *dev, int enable)
3027{
3028}
3029
3030
3031#endif
3032
3033/* MII transceiver control section.
3034 Read and write the MII registers using software-generated serial
3035 MDIO protocol. See the MII specifications or DP83840A data sheet
3036 for details. */
3037
3038/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3039 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3040 "overclocking" issues. */
John W. Linville62afe592005-11-07 00:58:02 -08003041#define mdio_delay() ioread32(mdio_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003042
3043#define MDIO_SHIFT_CLK 0x01
3044#define MDIO_DIR_WRITE 0x04
3045#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3046#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3047#define MDIO_DATA_READ 0x02
3048#define MDIO_ENB_IN 0x00
3049
3050/* Generate the preamble required for initial synchronization and
3051 a few older transceivers. */
John W. Linville62afe592005-11-07 00:58:02 -08003052static void mdio_sync(void __iomem *ioaddr, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003053{
John W. Linville62afe592005-11-07 00:58:02 -08003054 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003055
3056 /* Establish sync by sending at least 32 logic ones. */
3057 while (-- bits >= 0) {
John W. Linville62afe592005-11-07 00:58:02 -08003058 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003059 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003060 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003061 mdio_delay();
3062 }
3063}
3064
3065static int mdio_read(struct net_device *dev, int phy_id, int location)
3066{
3067 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003068 struct vortex_private *vp = netdev_priv(dev);
3069 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003070 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3071 unsigned int retval = 0;
John W. Linville62afe592005-11-07 00:58:02 -08003072 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003073
3074 if (mii_preamble_required)
3075 mdio_sync(ioaddr, 32);
3076
3077 /* Shift the read command bits out. */
3078 for (i = 14; i >= 0; i--) {
3079 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003080 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003081 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003082 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003083 mdio_delay();
3084 }
3085 /* Read the two transition, 16 data, and wire-idle bits. */
3086 for (i = 19; i > 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003087 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003088 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003089 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3090 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003091 mdio_delay();
3092 }
3093 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3094}
3095
3096static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3097{
John W. Linville62afe592005-11-07 00:58:02 -08003098 struct vortex_private *vp = netdev_priv(dev);
3099 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003100 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
John W. Linville62afe592005-11-07 00:58:02 -08003101 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003102 int i;
3103
3104 if (mii_preamble_required)
3105 mdio_sync(ioaddr, 32);
3106
3107 /* Shift the command bits out. */
3108 for (i = 31; i >= 0; i--) {
3109 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
John W. Linville62afe592005-11-07 00:58:02 -08003110 iowrite16(dataval, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003111 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003112 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113 mdio_delay();
3114 }
3115 /* Leave the interface idle. */
3116 for (i = 1; i >= 0; i--) {
John W. Linville62afe592005-11-07 00:58:02 -08003117 iowrite16(MDIO_ENB_IN, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003118 mdio_delay();
John W. Linville62afe592005-11-07 00:58:02 -08003119 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120 mdio_delay();
3121 }
3122 return;
3123}
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003124
Linus Torvalds1da177e2005-04-16 15:20:36 -07003125/* ACPI: Advanced Configuration and Power Interface. */
3126/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3127static void acpi_set_WOL(struct net_device *dev)
3128{
3129 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003130 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003131
Steffen Klassertc17931c2009-01-09 03:53:17 +00003132 device_set_wakeup_enable(vp->gendev, vp->enable_wol);
3133
Linus Torvalds1da177e2005-04-16 15:20:36 -07003134 if (vp->enable_wol) {
3135 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3136 EL3WINDOW(7);
John W. Linville62afe592005-11-07 00:58:02 -08003137 iowrite16(2, ioaddr + 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003138 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003139 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3140 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003141
Steffen Klassert1a1769f2007-10-16 14:24:09 -07003142 if (pci_enable_wake(VORTEX_PCI(vp), PCI_D3hot, 1)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00003143 pr_info("%s: WOL not supported.\n", pci_name(VORTEX_PCI(vp)));
Steffen Klassert1a1769f2007-10-16 14:24:09 -07003144
3145 vp->enable_wol = 0;
3146 return;
3147 }
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003148
3149 /* Change the power state to D3; RxEnable doesn't take effect. */
3150 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003151 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003152}
3153
3154
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003155static void __devexit vortex_remove_one(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003156{
3157 struct net_device *dev = pci_get_drvdata(pdev);
3158 struct vortex_private *vp;
3159
3160 if (!dev) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00003161 pr_err("vortex_remove_one called for Compaq device!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003162 BUG();
3163 }
3164
3165 vp = netdev_priv(dev);
3166
John W. Linville62afe592005-11-07 00:58:02 -08003167 if (vp->cb_fn_base)
3168 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3169
Linus Torvalds1da177e2005-04-16 15:20:36 -07003170 unregister_netdev(dev);
3171
3172 if (VORTEX_PCI(vp)) {
3173 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3174 if (vp->pm_state_valid)
3175 pci_restore_state(VORTEX_PCI(vp));
3176 pci_disable_device(VORTEX_PCI(vp));
3177 }
3178 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003179 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3180 vp->ioaddr + EL3_CMD);
3181
3182 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003183
3184 pci_free_consistent(pdev,
3185 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3186 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3187 vp->rx_ring,
3188 vp->rx_ring_dma);
3189 if (vp->must_free_region)
3190 release_region(dev->base_addr, vp->io_size);
3191 free_netdev(dev);
3192}
3193
3194
3195static struct pci_driver vortex_driver = {
3196 .name = "3c59x",
3197 .probe = vortex_init_one,
3198 .remove = __devexit_p(vortex_remove_one),
3199 .id_table = vortex_pci_tbl,
3200#ifdef CONFIG_PM
3201 .suspend = vortex_suspend,
3202 .resume = vortex_resume,
3203#endif
3204};
3205
3206
3207static int vortex_have_pci;
3208static int vortex_have_eisa;
3209
3210
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003211static int __init vortex_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003212{
3213 int pci_rc, eisa_rc;
3214
Jeff Garzik29917622006-08-19 17:48:59 -04003215 pci_rc = pci_register_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003216 eisa_rc = vortex_eisa_init();
3217
3218 if (pci_rc == 0)
3219 vortex_have_pci = 1;
3220 if (eisa_rc > 0)
3221 vortex_have_eisa = 1;
3222
3223 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3224}
3225
3226
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003227static void __exit vortex_eisa_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003228{
3229 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003230 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003231
3232#ifdef CONFIG_EISA
3233 /* Take care of the EISA devices */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003234 eisa_driver_unregister(&vortex_eisa_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003235#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003236
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237 if (compaq_net_device) {
Wang Chen454d7c92008-11-12 23:37:49 -08003238 vp = netdev_priv(compaq_net_device);
John W. Linville62afe592005-11-07 00:58:02 -08003239 ioaddr = ioport_map(compaq_net_device->base_addr,
3240 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003241
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003242 unregister_netdev(compaq_net_device);
3243 iowrite16(TotalReset, ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08003244 release_region(compaq_net_device->base_addr,
3245 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003246
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003247 free_netdev(compaq_net_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003248 }
3249}
3250
3251
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003252static void __exit vortex_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003253{
3254 if (vortex_have_pci)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003255 pci_unregister_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003256 if (vortex_have_eisa)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003257 vortex_eisa_cleanup();
Linus Torvalds1da177e2005-04-16 15:20:36 -07003258}
3259
3260
3261module_init(vortex_init);
3262module_exit(vortex_cleanup);