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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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070080#include <linux/interrupt.h>
81#include <linux/pci.h>
82#include <linux/mii.h>
83#include <linux/init.h>
84#include <linux/netdevice.h>
85#include <linux/etherdevice.h>
86#include <linux/skbuff.h>
87#include <linux/ethtool.h>
88#include <linux/highmem.h>
89#include <linux/eisa.h>
90#include <linux/bitops.h>
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -080091#include <linux/jiffies.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090092#include <linux/gfp.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,
Pascal Terjanb4adbb42009-08-05 04:11:39 +0000238 CH_3C905B_TX,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 CH_3C905B_1,
240
241 CH_3C905B_2,
242 CH_3C905B_FX,
243 CH_3C905C,
244 CH_3C9202,
245 CH_3C980,
246 CH_3C9805,
247
248 CH_3CSOHO100_TX,
249 CH_3C555,
250 CH_3C556,
251 CH_3C556B,
252 CH_3C575,
253
254 CH_3C575_1,
255 CH_3CCFE575,
256 CH_3CCFE575CT,
257 CH_3CCFE656,
258 CH_3CCFEM656,
259
260 CH_3CCFEM656_1,
261 CH_3C450,
262 CH_3C920,
263 CH_3C982A,
264 CH_3C982B,
265
266 CH_905BT4,
267 CH_920B_EMB_WNM,
268};
269
270
271/* note: this array directly indexed by above enums, and MUST
272 * be kept in sync with both the enums above, and the PCI device
273 * table below
274 */
275static struct vortex_chip_info {
276 const char *name;
277 int flags;
278 int drv_flags;
279 int io_size;
280} vortex_info_tbl[] __devinitdata = {
281 {"3c590 Vortex 10Mbps",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400282 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400284 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400286 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 {"3c595 Vortex 100baseTx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400288 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 {"3c595 Vortex 100baseT4",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400290 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291
292 {"3c595 Vortex 100base-MII",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400293 PCI_USES_MASTER, IS_VORTEX, 32, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 {"3c900 Boomerang 10baseT",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400295 PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 {"3c900 Boomerang 10Mbps Combo",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400297 PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400299 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 {"3c900 Cyclone 10Mbps Combo",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400301 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
303 {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400304 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 {"3c900B-FL Cyclone 10base-FL",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400306 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 {"3c905 Boomerang 100baseTx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400308 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 {"3c905 Boomerang 100baseT4",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400310 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
Pascal Terjanb4adbb42009-08-05 04:11:39 +0000311 {"3C905B-TX Fast Etherlink XL PCI",
312 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 {"3c905B Cyclone 100baseTx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400314 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315
316 {"3c905B Cyclone 10/100/BNC",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400317 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 {"3c905B-FX Cyclone 100baseFx",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400319 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 {"3c905C Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400321 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400323 PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 {"3c980 Cyclone",
Gunnar Larischaa807f72008-05-05 14:01:28 +0200325 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
327 {"3c980C Python-T",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400328 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 {"3cSOHO100-TX Hurricane",
Steffen Klassertb8a1fce2007-07-09 11:50:23 -0700330 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 {"3c555 Laptop Hurricane",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400332 PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 {"3c556 Laptop Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400334 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 HAS_HWCKSM, 128, },
336 {"3c556B Laptop Hurricane",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400337 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 WNO_XCVR_PWR|HAS_HWCKSM, 128, },
339
340 {"3c575 [Megahertz] 10/100 LAN CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400341 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 {"3c575 Boomerang CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400343 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 {"3CCFE575BT Cyclone CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400345 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 INVERT_LED_PWR|HAS_HWCKSM, 128, },
347 {"3CCFE575CT Tornado CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400348 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
350 {"3CCFE656 Cyclone CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400351 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 INVERT_LED_PWR|HAS_HWCKSM, 128, },
353
354 {"3CCFEM656B Cyclone+Winmodem CardBus",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400355 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 INVERT_LED_PWR|HAS_HWCKSM, 128, },
357 {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400358 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
360 {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400361 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 {"3c920 Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400363 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 {"3c982 Hydra Dual Port A",
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
367 {"3c982 Hydra Dual Port B",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400368 PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 {"3c905B-T4",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400370 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 {"3c920B-EMB-WNM Tornado",
Jeff Garzik1f1bd5f2006-06-26 23:47:50 -0400372 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
374 {NULL,}, /* NULL terminated list. */
375};
376
377
Alexey Dobriyana3aa1882010-01-07 11:58:11 +0000378static DEFINE_PCI_DEVICE_TABLE(vortex_pci_tbl) = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
380 { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
381 { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
382 { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
383 { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
384
385 { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
386 { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
387 { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
388 { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
389 { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
390
391 { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
392 { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
393 { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
394 { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
Pascal Terjanb4adbb42009-08-05 04:11:39 +0000395 { 0x10B7, 0x9054, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_TX },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
397
398 { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
399 { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
400 { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
401 { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
402 { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
403 { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
404
405 { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
406 { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
407 { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
408 { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
409 { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
410
411 { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
412 { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
413 { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
414 { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
415 { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
416
417 { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
418 { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
419 { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
420 { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
421 { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
422
423 { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
424 { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
425
426 {0,} /* 0 terminated list. */
427};
428MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
429
430
431/* Operational definitions.
432 These are not used by other compilation units and thus are not
433 exported in a ".h" file.
434
435 First the windows. There are eight register windows, with the command
436 and status registers available in each.
437 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438#define EL3_CMD 0x0e
439#define EL3_STATUS 0x0e
440
441/* The top five bits written to EL3_CMD are a command, the lower
442 11 bits are the parameter, if applicable.
443 Note that 11 parameters bits was fine for ethernet, but the new chip
444 can handle FDDI length frames (~4500 octets) and now parameters count
445 32-bit 'Dwords' rather than octets. */
446
447enum vortex_cmd {
448 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
449 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
450 UpStall = 6<<11, UpUnstall = (6<<11)+1,
451 DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
452 RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
453 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
454 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
455 SetTxThreshold = 18<<11, SetTxStart = 19<<11,
456 StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
457 StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
458
459/* The SetRxFilter command accepts the following classes: */
460enum RxFilter {
461 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
462
463/* Bits in the general status register. */
464enum vortex_status {
465 IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
466 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
467 IntReq = 0x0040, StatsFull = 0x0080,
468 DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
469 DMAInProgress = 1<<11, /* DMA controller is still busy.*/
470 CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
471};
472
473/* Register window 1 offsets, the window used in normal operation.
474 On the Vortex this window is always mapped at offsets 0x10-0x1f. */
475enum Window1 {
476 TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
477 RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
478 TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
479};
480enum Window0 {
481 Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
482 Wn0EepromData = 12, /* Window 0: EEPROM results register. */
483 IntrStatus=0x0E, /* Valid in all windows. */
484};
485enum Win0_EEPROM_bits {
486 EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
487 EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
488 EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
489};
490/* EEPROM locations. */
491enum eeprom_offset {
492 PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
493 EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
494 NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
495 DriverTune=13, Checksum=15};
496
497enum Window2 { /* Window 2. */
498 Wn2_ResetOptions=12,
499};
500enum Window3 { /* Window 3: MAC/config bits. */
501 Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8,
502};
503
504#define BFEXT(value, offset, bitcount) \
505 ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
506
507#define BFINS(lhs, rhs, offset, bitcount) \
508 (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \
509 (((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
510
511#define RAM_SIZE(v) BFEXT(v, 0, 3)
512#define RAM_WIDTH(v) BFEXT(v, 3, 1)
513#define RAM_SPEED(v) BFEXT(v, 4, 2)
514#define ROM_SIZE(v) BFEXT(v, 6, 2)
515#define RAM_SPLIT(v) BFEXT(v, 16, 2)
516#define XCVR(v) BFEXT(v, 20, 4)
517#define AUTOSELECT(v) BFEXT(v, 24, 1)
518
519enum Window4 { /* Window 4: Xcvr/media bits. */
520 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
521};
522enum Win4_Media_bits {
523 Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
524 Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
525 Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
526 Media_LnkBeat = 0x0800,
527};
528enum Window7 { /* Window 7: Bus Master control. */
529 Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6,
530 Wn7_MasterStatus = 12,
531};
532/* Boomerang bus master control registers. */
533enum MasterCtrl {
534 PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c,
535 TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38,
536};
537
538/* The Rx and Tx descriptor lists.
539 Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
540 alignment contraint on tx_ring[] and rx_ring[]. */
541#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
542#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
543struct boom_rx_desc {
Al Virocc2d6592007-08-22 21:34:46 -0400544 __le32 next; /* Last entry points to 0. */
545 __le32 status;
546 __le32 addr; /* Up to 63 addr/len pairs possible. */
547 __le32 length; /* Set LAST_FRAG to indicate last pair. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548};
549/* Values for the Rx status entry. */
550enum rx_desc_status {
551 RxDComplete=0x00008000, RxDError=0x4000,
552 /* See boomerang_rx() for actual error bits */
553 IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27,
554 IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31,
555};
556
557#ifdef MAX_SKB_FRAGS
558#define DO_ZEROCOPY 1
559#else
560#define DO_ZEROCOPY 0
561#endif
562
563struct boom_tx_desc {
Al Virocc2d6592007-08-22 21:34:46 -0400564 __le32 next; /* Last entry points to 0. */
565 __le32 status; /* bits 0:12 length, others see below. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566#if DO_ZEROCOPY
567 struct {
Al Virocc2d6592007-08-22 21:34:46 -0400568 __le32 addr;
569 __le32 length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 } frag[1+MAX_SKB_FRAGS];
571#else
Al Virocc2d6592007-08-22 21:34:46 -0400572 __le32 addr;
573 __le32 length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574#endif
575};
576
577/* Values for the Tx status entry. */
578enum tx_desc_status {
579 CRCDisable=0x2000, TxDComplete=0x8000,
580 AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000,
581 TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */
582};
583
584/* Chip features we care about in vp->capabilities, read from the EEPROM. */
585enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 };
586
587struct vortex_extra_stats {
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800588 unsigned long tx_deferred;
589 unsigned long tx_max_collisions;
590 unsigned long tx_multiple_collisions;
591 unsigned long tx_single_collisions;
592 unsigned long rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593};
594
595struct vortex_private {
596 /* The Rx and Tx rings should be quad-word-aligned. */
597 struct boom_rx_desc* rx_ring;
598 struct boom_tx_desc* tx_ring;
599 dma_addr_t rx_ring_dma;
600 dma_addr_t tx_ring_dma;
601 /* The addresses of transmit- and receive-in-place skbuffs. */
602 struct sk_buff* rx_skbuff[RX_RING_SIZE];
603 struct sk_buff* tx_skbuff[TX_RING_SIZE];
604 unsigned int cur_rx, cur_tx; /* The next free ring entry */
605 unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 struct vortex_extra_stats xstats; /* NIC-specific extra stats */
607 struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
608 dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
609
610 /* PCI configuration space information. */
611 struct device *gendev;
John W. Linville62afe592005-11-07 00:58:02 -0800612 void __iomem *ioaddr; /* IO address space */
613 void __iomem *cb_fn_base; /* CardBus function status addr space. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614
615 /* Some values here only for performance evaluation and path-coverage */
616 int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
617 int card_idx;
618
619 /* The remainder are related to chip state, mostly media selection. */
620 struct timer_list timer; /* Media selection timer. */
621 struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
622 int options; /* User-settable misc. driver options. */
623 unsigned int media_override:4, /* Passed-in media type. */
624 default_media:4, /* Read from the EEPROM/Wn3_Config. */
Steffen Klassert09ce3512006-03-31 02:30:48 -0800625 full_duplex:1, autoselect:1,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 bus_master:1, /* Vortex can only do a fragment bus-m. */
627 full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
628 flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
629 partner_flow_ctrl:1, /* Partner supports flow control */
630 has_nway:1,
631 enable_wol:1, /* Wake-on-LAN is enabled */
632 pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */
633 open:1,
634 medialock:1,
635 must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */
Neil Hormanaa25ab72010-08-11 05:12:57 +0000636 large_frames:1, /* accept large frames */
637 handling_irq:1; /* private in_irq indicator */
Denis Kirjanov84176b72010-09-15 00:58:46 +0000638 /* {get|set}_wol operations are already serialized by rtnl.
639 * no additional locking is required for the enable_wol and acpi_set_WOL()
640 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 int drv_flags;
642 u16 status_enable;
643 u16 intr_enable;
644 u16 available_media; /* From Wn3_Options. */
645 u16 capabilities, info1, info2; /* Various, from EEPROM. */
646 u16 advertising; /* NWay media advertisement */
647 unsigned char phys[2]; /* MII device addresses. */
648 u16 deferred; /* Resend these interrupts when we
649 * bale from the ISR */
650 u16 io_size; /* Size of PCI region (for release_region) */
Ben Hutchingsde847272010-06-29 15:26:56 +0000651
652 /* Serialises access to hardware other than MII and variables below.
Ben Hutchings24cd8042010-08-30 14:15:33 +0000653 * The lock hierarchy is rtnl_lock > {lock, mii_lock} > window_lock. */
Ben Hutchingsde847272010-06-29 15:26:56 +0000654 spinlock_t lock;
655
656 spinlock_t mii_lock; /* Serialises access to MII */
657 struct mii_if_info mii; /* MII lib hooks/info */
658 spinlock_t window_lock; /* Serialises access to windowed regs */
659 int window; /* Register window */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660};
661
Ben Hutchingsa095cfc2010-06-23 13:54:31 +0000662static void window_set(struct vortex_private *vp, int window)
663{
664 if (window != vp->window) {
665 iowrite16(SelectWindow + window, vp->ioaddr + EL3_CMD);
666 vp->window = window;
667 }
668}
669
670#define DEFINE_WINDOW_IO(size) \
671static u ## size \
672window_read ## size(struct vortex_private *vp, int window, int addr) \
673{ \
Ben Hutchingsde847272010-06-29 15:26:56 +0000674 unsigned long flags; \
675 u ## size ret; \
676 spin_lock_irqsave(&vp->window_lock, flags); \
Ben Hutchingsa095cfc2010-06-23 13:54:31 +0000677 window_set(vp, window); \
Ben Hutchingsde847272010-06-29 15:26:56 +0000678 ret = ioread ## size(vp->ioaddr + addr); \
679 spin_unlock_irqrestore(&vp->window_lock, flags); \
680 return ret; \
Ben Hutchingsa095cfc2010-06-23 13:54:31 +0000681} \
682static void \
683window_write ## size(struct vortex_private *vp, u ## size value, \
684 int window, int addr) \
685{ \
Ben Hutchingsde847272010-06-29 15:26:56 +0000686 unsigned long flags; \
687 spin_lock_irqsave(&vp->window_lock, flags); \
Ben Hutchingsa095cfc2010-06-23 13:54:31 +0000688 window_set(vp, window); \
689 iowrite ## size(value, vp->ioaddr + addr); \
Ben Hutchingsde847272010-06-29 15:26:56 +0000690 spin_unlock_irqrestore(&vp->window_lock, flags); \
Ben Hutchingsa095cfc2010-06-23 13:54:31 +0000691}
692DEFINE_WINDOW_IO(8)
693DEFINE_WINDOW_IO(16)
694DEFINE_WINDOW_IO(32)
695
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696#ifdef CONFIG_PCI
697#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
698#else
699#define DEVICE_PCI(dev) NULL
700#endif
701
Namhyung Kimd530db02010-11-16 05:27:51 +0000702#define VORTEX_PCI(vp) \
703 ((struct pci_dev *) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704
705#ifdef CONFIG_EISA
706#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
707#else
708#define DEVICE_EISA(dev) NULL
709#endif
710
Namhyung Kimd530db02010-11-16 05:27:51 +0000711#define VORTEX_EISA(vp) \
712 ((struct eisa_device *) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713
714/* The action to take with a media selection timer tick.
715 Note that we deviate from the 3Com order by checking 10base2 before AUI.
716 */
717enum xcvr_types {
718 XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
719 XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
720};
721
Arjan van de Venf71e1302006-03-03 21:33:57 -0500722static const struct media_table {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 char *name;
724 unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
725 mask:8, /* The transceiver-present bit in Wn3_Config.*/
726 next:8; /* The media type to try next. */
727 int wait; /* Time before we check media status. */
728} media_tbl[] = {
729 { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
730 { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
731 { "undefined", 0, 0x80, XCVR_10baseT, 10000},
732 { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
733 { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
734 { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
735 { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
736 { "undefined", 0, 0x01, XCVR_10baseT, 10000},
737 { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
738 { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
739 { "Default", 0, 0xFF, XCVR_10baseT, 10000},
740};
741
742static struct {
743 const char str[ETH_GSTRING_LEN];
744} ethtool_stats_keys[] = {
745 { "tx_deferred" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800746 { "tx_max_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747 { "tx_multiple_collisions" },
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800748 { "tx_single_collisions" },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 { "rx_bad_ssd" },
750};
751
752/* number of ETHTOOL_GSTATS u64's */
Steffen Klassert8d1d0342006-02-03 03:03:57 -0800753#define VORTEX_NUM_STATS 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
John W. Linville62afe592005-11-07 00:58:02 -0800755static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756 int chip_idx, int card_idx);
Mark Hindleyc8303d12007-08-16 11:28:40 +0100757static int vortex_up(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758static void vortex_down(struct net_device *dev, int final);
759static int vortex_open(struct net_device *dev);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +0000760static void mdio_sync(struct vortex_private *vp, int bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761static int mdio_read(struct net_device *dev, int phy_id, int location);
762static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
763static void vortex_timer(unsigned long arg);
764static void rx_oom_timer(unsigned long arg);
Stephen Hemminger27a1de92009-08-31 19:50:54 +0000765static netdev_tx_t vortex_start_xmit(struct sk_buff *skb,
766 struct net_device *dev);
767static netdev_tx_t boomerang_start_xmit(struct sk_buff *skb,
768 struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769static int vortex_rx(struct net_device *dev);
770static int boomerang_rx(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100771static irqreturn_t vortex_interrupt(int irq, void *dev_id);
772static irqreturn_t boomerang_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773static int vortex_close(struct net_device *dev);
774static void dump_tx_ring(struct net_device *dev);
John W. Linville62afe592005-11-07 00:58:02 -0800775static void update_stats(void __iomem *ioaddr, struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776static struct net_device_stats *vortex_get_stats(struct net_device *dev);
777static void set_rx_mode(struct net_device *dev);
778#ifdef CONFIG_PCI
779static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
780#endif
781static void vortex_tx_timeout(struct net_device *dev);
782static void acpi_set_WOL(struct net_device *dev);
Jeff Garzik7282d492006-09-13 14:30:00 -0400783static const struct ethtool_ops vortex_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784static void set_8021q_mode(struct net_device *dev, int enable);
785
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
787/* Option count limit only -- unlimited interfaces are supported. */
788#define MAX_UNITS 8
John W. Linville9954ab72005-11-07 00:58:06 -0800789static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 };
790static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
791static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
792static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
793static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
John W. Linville900fd172005-11-07 00:58:08 -0800794static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795static int global_options = -1;
796static int global_full_duplex = -1;
797static int global_enable_wol = -1;
John W. Linville900fd172005-11-07 00:58:08 -0800798static int global_use_mmio = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800/* Variables to work-around the Compaq PCI BIOS32 problem. */
801static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
802static struct net_device *compaq_net_device;
803
804static int vortex_cards_found;
805
806module_param(debug, int, 0);
807module_param(global_options, int, 0);
808module_param_array(options, int, NULL, 0);
809module_param(global_full_duplex, int, 0);
810module_param_array(full_duplex, int, NULL, 0);
811module_param_array(hw_checksums, int, NULL, 0);
812module_param_array(flow_ctrl, int, NULL, 0);
813module_param(global_enable_wol, int, 0);
814module_param_array(enable_wol, int, NULL, 0);
815module_param(rx_copybreak, int, 0);
816module_param(max_interrupt_work, int, 0);
817module_param(compaq_ioaddr, int, 0);
818module_param(compaq_irq, int, 0);
819module_param(compaq_device_id, int, 0);
820module_param(watchdog, int, 0);
John W. Linville900fd172005-11-07 00:58:08 -0800821module_param(global_use_mmio, int, 0);
822module_param_array(use_mmio, int, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
824MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
825MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
826MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800827MODULE_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 -0700828MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
829MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
830MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
John W. Linville46e5e4a2005-11-07 00:58:06 -0800831MODULE_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 -0700832MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
833MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
834MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
835MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
836MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
837MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
John W. Linville900fd172005-11-07 00:58:08 -0800838MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset");
839MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840
841#ifdef CONFIG_NET_POLL_CONTROLLER
842static void poll_vortex(struct net_device *dev)
843{
844 struct vortex_private *vp = netdev_priv(dev);
845 unsigned long flags;
Jiri Kosina0d38ff12007-02-05 16:29:48 -0800846 local_irq_save(flags);
David Howells7d12e782006-10-05 14:55:46 +0100847 (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 local_irq_restore(flags);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400849}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850#endif
851
852#ifdef CONFIG_PM
853
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700854static int vortex_suspend(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855{
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700856 struct pci_dev *pdev = to_pci_dev(dev);
857 struct net_device *ndev = pci_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700859 if (!ndev || !netif_running(ndev))
860 return 0;
861
862 netif_device_detach(ndev);
863 vortex_down(ndev, 1);
864
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 return 0;
866}
867
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700868static int vortex_resume(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869{
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700870 struct pci_dev *pdev = to_pci_dev(dev);
871 struct net_device *ndev = pci_get_drvdata(pdev);
Dmitriy Monakhove1265152007-03-06 02:41:59 -0800872 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700874 if (!ndev || !netif_running(ndev))
875 return 0;
876
877 err = vortex_up(ndev);
878 if (err)
879 return err;
880
881 netif_device_attach(ndev);
882
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 return 0;
884}
885
Alexey Dobriyan47145212009-12-14 18:00:08 -0800886static const struct dev_pm_ops vortex_pm_ops = {
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -0700887 .suspend = vortex_suspend,
888 .resume = vortex_resume,
889 .freeze = vortex_suspend,
890 .thaw = vortex_resume,
891 .poweroff = vortex_suspend,
892 .restore = vortex_resume,
893};
894
895#define VORTEX_PM_OPS (&vortex_pm_ops)
896
897#else /* !CONFIG_PM */
898
899#define VORTEX_PM_OPS NULL
900
901#endif /* !CONFIG_PM */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
903#ifdef CONFIG_EISA
904static struct eisa_device_id vortex_eisa_ids[] = {
905 { "TCM5920", CH_3C592 },
906 { "TCM5970", CH_3C597 },
907 { "" }
908};
Michael Tokarev07563c72006-09-27 01:50:56 -0700909MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
Ralf Baechle95c408a2007-03-08 15:33:16 +0000911static int __init vortex_eisa_probe(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912{
John W. Linville62afe592005-11-07 00:58:02 -0800913 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914 struct eisa_device *edev;
915
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800916 edev = to_eisa_device(device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917
John W. Linville62afe592005-11-07 00:58:02 -0800918 if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 return -EBUSY;
920
John W. Linville62afe592005-11-07 00:58:02 -0800921 ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
922
923 if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924 edev->id.driver_data, vortex_cards_found)) {
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800925 release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926 return -ENODEV;
927 }
928
929 vortex_cards_found++;
930
931 return 0;
932}
933
Ralf Baechle95c408a2007-03-08 15:33:16 +0000934static int __devexit vortex_eisa_remove(struct device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935{
936 struct eisa_device *edev;
937 struct net_device *dev;
938 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -0800939 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800941 edev = to_eisa_device(device);
942 dev = eisa_get_drvdata(edev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943
944 if (!dev) {
Alexander Beregalov39738e12009-05-26 12:35:26 +0000945 pr_err("vortex_eisa_remove called for Compaq device!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 BUG();
947 }
948
949 vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -0800950 ioaddr = vp->ioaddr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400951
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800952 unregister_netdev(dev);
953 iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
954 release_region(dev->base_addr, VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800956 free_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 return 0;
958}
Ralf Baechle95c408a2007-03-08 15:33:16 +0000959
960static struct eisa_driver vortex_eisa_driver = {
961 .id_table = vortex_eisa_ids,
962 .driver = {
963 .name = "3c59x",
964 .probe = vortex_eisa_probe,
965 .remove = __devexit_p(vortex_eisa_remove)
966 }
967};
968
969#endif /* CONFIG_EISA */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
971/* returns count found (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -0800972static int __init vortex_eisa_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973{
974 int eisa_found = 0;
975 int orig_cards_found = vortex_cards_found;
976
977#ifdef CONFIG_EISA
Bjorn Helgaasc2f6fab2006-03-25 03:07:19 -0800978 int err;
979
980 err = eisa_driver_register (&vortex_eisa_driver);
981 if (!err) {
982 /*
983 * Because of the way EISA bus is probed, we cannot assume
984 * any device have been found when we exit from
985 * eisa_driver_register (the bus root driver may not be
986 * initialized yet). So we blindly assume something was
987 * found, and let the sysfs magic happend...
988 */
989 eisa_found = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990 }
991#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400992
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993 /* Special code to work-around the Compaq PCI BIOS32 problem. */
994 if (compaq_ioaddr) {
John W. Linville62afe592005-11-07 00:58:02 -0800995 vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
996 compaq_irq, compaq_device_id, vortex_cards_found++);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 }
998
999 return vortex_cards_found - orig_cards_found + eisa_found;
1000}
1001
1002/* returns count (>= 0), or negative on error */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001003static int __devinit vortex_init_one(struct pci_dev *pdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 const struct pci_device_id *ent)
1005{
John W. Linville900fd172005-11-07 00:58:08 -08001006 int rc, unit, pci_bar;
1007 struct vortex_chip_info *vci;
1008 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001010 /* wake up and enable device */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001011 rc = pci_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012 if (rc < 0)
1013 goto out;
1014
John W. Linville900fd172005-11-07 00:58:08 -08001015 unit = vortex_cards_found;
1016
1017 if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
1018 /* Determine the default if the user didn't override us */
1019 vci = &vortex_info_tbl[ent->driver_data];
1020 pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0;
1021 } else if (unit < MAX_UNITS && use_mmio[unit] >= 0)
1022 pci_bar = use_mmio[unit] ? 1 : 0;
1023 else
1024 pci_bar = global_use_mmio ? 1 : 0;
1025
1026 ioaddr = pci_iomap(pdev, pci_bar, 0);
1027 if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
1028 ioaddr = pci_iomap(pdev, 0, 0);
Kulikov Vasiliy8cd47ea2010-07-21 02:00:36 +00001029 if (!ioaddr) {
1030 pci_disable_device(pdev);
1031 rc = -ENOMEM;
1032 goto out;
1033 }
John W. Linville900fd172005-11-07 00:58:08 -08001034
1035 rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
1036 ent->driver_data, unit);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037 if (rc < 0) {
Kulikov Vasiliyf89f5d02010-07-23 06:44:44 +00001038 pci_iounmap(pdev, ioaddr);
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001039 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 goto out;
1041 }
1042
1043 vortex_cards_found++;
1044
1045out:
1046 return rc;
1047}
1048
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001049static const struct net_device_ops boomrang_netdev_ops = {
1050 .ndo_open = vortex_open,
1051 .ndo_stop = vortex_close,
1052 .ndo_start_xmit = boomerang_start_xmit,
1053 .ndo_tx_timeout = vortex_tx_timeout,
1054 .ndo_get_stats = vortex_get_stats,
1055#ifdef CONFIG_PCI
1056 .ndo_do_ioctl = vortex_ioctl,
1057#endif
1058 .ndo_set_multicast_list = set_rx_mode,
1059 .ndo_change_mtu = eth_change_mtu,
1060 .ndo_set_mac_address = eth_mac_addr,
1061 .ndo_validate_addr = eth_validate_addr,
1062#ifdef CONFIG_NET_POLL_CONTROLLER
1063 .ndo_poll_controller = poll_vortex,
1064#endif
1065};
1066
1067static const struct net_device_ops vortex_netdev_ops = {
1068 .ndo_open = vortex_open,
1069 .ndo_stop = vortex_close,
1070 .ndo_start_xmit = vortex_start_xmit,
1071 .ndo_tx_timeout = vortex_tx_timeout,
1072 .ndo_get_stats = vortex_get_stats,
1073#ifdef CONFIG_PCI
1074 .ndo_do_ioctl = vortex_ioctl,
1075#endif
1076 .ndo_set_multicast_list = set_rx_mode,
1077 .ndo_change_mtu = eth_change_mtu,
1078 .ndo_set_mac_address = eth_mac_addr,
1079 .ndo_validate_addr = eth_validate_addr,
1080#ifdef CONFIG_NET_POLL_CONTROLLER
1081 .ndo_poll_controller = poll_vortex,
1082#endif
1083};
1084
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085/*
1086 * Start up the PCI/EISA device which is described by *gendev.
1087 * Return 0 on success.
1088 *
1089 * NOTE: pdev can be NULL, for the case of a Compaq device
1090 */
1091static int __devinit vortex_probe1(struct device *gendev,
John W. Linville62afe592005-11-07 00:58:02 -08001092 void __iomem *ioaddr, int irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093 int chip_idx, int card_idx)
1094{
1095 struct vortex_private *vp;
1096 int option;
1097 unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
1098 int i, step;
1099 struct net_device *dev;
1100 static int printed_version;
1101 int retval, print_info;
1102 struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
Greg Kroah-Hartman361d5ee2008-07-02 12:46:22 -07001103 const char *print_name = "3c59x";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104 struct pci_dev *pdev = NULL;
1105 struct eisa_device *edev = NULL;
1106
1107 if (!printed_version) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001108 pr_info("%s", version);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109 printed_version = 1;
1110 }
1111
1112 if (gendev) {
1113 if ((pdev = DEVICE_PCI(gendev))) {
1114 print_name = pci_name(pdev);
1115 }
1116
1117 if ((edev = DEVICE_EISA(gendev))) {
Kay Sieversfb28ad32008-11-10 13:55:14 -08001118 print_name = dev_name(&edev->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 }
1120 }
1121
1122 dev = alloc_etherdev(sizeof(*vp));
1123 retval = -ENOMEM;
1124 if (!dev) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001125 pr_err(PFX "unable to allocate etherdev, aborting\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 goto out;
1127 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 SET_NETDEV_DEV(dev, gendev);
1129 vp = netdev_priv(dev);
1130
1131 option = global_options;
1132
1133 /* The lower four bits are the media type. */
1134 if (dev->mem_start) {
1135 /*
1136 * The 'options' param is passed in as the third arg to the
1137 * LILO 'ether=' argument for non-modular use
1138 */
1139 option = dev->mem_start;
1140 }
1141 else if (card_idx < MAX_UNITS) {
1142 if (options[card_idx] >= 0)
1143 option = options[card_idx];
1144 }
1145
1146 if (option > 0) {
1147 if (option & 0x8000)
1148 vortex_debug = 7;
1149 if (option & 0x4000)
1150 vortex_debug = 2;
1151 if (option & 0x0400)
1152 vp->enable_wol = 1;
1153 }
1154
1155 print_info = (vortex_debug > 1);
1156 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001157 pr_info("See Documentation/networking/vortex.txt\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158
Alexander Beregalov39738e12009-05-26 12:35:26 +00001159 pr_info("%s: 3Com %s %s at %p.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 print_name,
1161 pdev ? "PCI" : "EISA",
1162 vci->name,
1163 ioaddr);
1164
John W. Linville62afe592005-11-07 00:58:02 -08001165 dev->base_addr = (unsigned long)ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166 dev->irq = irq;
1167 dev->mtu = mtu;
John W. Linville62afe592005-11-07 00:58:02 -08001168 vp->ioaddr = ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169 vp->large_frames = mtu > 1500;
1170 vp->drv_flags = vci->drv_flags;
1171 vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
1172 vp->io_size = vci->io_size;
1173 vp->card_idx = card_idx;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001174 vp->window = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175
1176 /* module list only for Compaq device */
1177 if (gendev == NULL) {
1178 compaq_net_device = dev;
1179 }
1180
1181 /* PCI-only startup logic */
1182 if (pdev) {
1183 /* EISA resources already marked, so only PCI needs to do this here */
1184 /* Ignore return value, because Cardbus drivers already allocate for us */
John W. Linville62afe592005-11-07 00:58:02 -08001185 if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 vp->must_free_region = 1;
1187
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001188 /* enable bus-mastering if necessary */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 if (vci->flags & PCI_USES_MASTER)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001190 pci_set_master(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191
1192 if (vci->drv_flags & IS_VORTEX) {
1193 u8 pci_latency;
1194 u8 new_latency = 248;
1195
1196 /* Check the PCI latency value. On the 3c590 series the latency timer
1197 must be set to the maximum value to avoid data corruption that occurs
1198 when the timer expires during a transfer. This bug exists the Vortex
1199 chip only. */
1200 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
1201 if (pci_latency < new_latency) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001202 pr_info("%s: Overriding PCI latency timer (CFLT) setting of %d, new value is %d.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203 print_name, pci_latency, new_latency);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001204 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205 }
1206 }
1207 }
1208
1209 spin_lock_init(&vp->lock);
Ben Hutchingsde847272010-06-29 15:26:56 +00001210 spin_lock_init(&vp->mii_lock);
1211 spin_lock_init(&vp->window_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212 vp->gendev = gendev;
1213 vp->mii.dev = dev;
1214 vp->mii.mdio_read = mdio_read;
1215 vp->mii.mdio_write = mdio_write;
1216 vp->mii.phy_id_mask = 0x1f;
1217 vp->mii.reg_num_mask = 0x1f;
1218
1219 /* Makes sure rings are at least 16 byte aligned. */
1220 vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
1221 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1222 &vp->rx_ring_dma);
1223 retval = -ENOMEM;
Al Virocc2d6592007-08-22 21:34:46 -04001224 if (!vp->rx_ring)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 goto free_region;
1226
1227 vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
1228 vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
1229
1230 /* if we are a PCI driver, we store info in pdev->driver_data
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001231 * instead of a module list */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232 if (pdev)
1233 pci_set_drvdata(pdev, dev);
1234 if (edev)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001235 eisa_set_drvdata(edev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236
1237 vp->media_override = 7;
1238 if (option >= 0) {
1239 vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
1240 if (vp->media_override != 7)
1241 vp->medialock = 1;
1242 vp->full_duplex = (option & 0x200) ? 1 : 0;
1243 vp->bus_master = (option & 16) ? 1 : 0;
1244 }
1245
1246 if (global_full_duplex > 0)
1247 vp->full_duplex = 1;
1248 if (global_enable_wol > 0)
1249 vp->enable_wol = 1;
1250
1251 if (card_idx < MAX_UNITS) {
1252 if (full_duplex[card_idx] > 0)
1253 vp->full_duplex = 1;
1254 if (flow_ctrl[card_idx] > 0)
1255 vp->flow_ctrl = 1;
1256 if (enable_wol[card_idx] > 0)
1257 vp->enable_wol = 1;
1258 }
1259
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001260 vp->mii.force_media = vp->full_duplex;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 vp->options = option;
1262 /* Read the station address from the EEPROM. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263 {
1264 int base;
1265
1266 if (vci->drv_flags & EEPROM_8BIT)
1267 base = 0x230;
1268 else if (vci->drv_flags & EEPROM_OFFSET)
1269 base = EEPROM_Read + 0x30;
1270 else
1271 base = EEPROM_Read;
1272
1273 for (i = 0; i < 0x40; i++) {
1274 int timer;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001275 window_write16(vp, base + i, 0, Wn0EepromCmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 /* Pause for at least 162 us. for the read to take place. */
1277 for (timer = 10; timer >= 0; timer--) {
1278 udelay(162);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001279 if ((window_read16(vp, 0, Wn0EepromCmd) &
1280 0x8000) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281 break;
1282 }
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001283 eeprom[i] = window_read16(vp, 0, Wn0EepromData);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 }
1285 }
1286 for (i = 0; i < 0x18; i++)
1287 checksum ^= eeprom[i];
1288 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1289 if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
1290 while (i < 0x21)
1291 checksum ^= eeprom[i++];
1292 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1293 }
1294 if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO))
Alexander Beregalov39738e12009-05-26 12:35:26 +00001295 pr_cont(" ***INVALID CHECKSUM %4.4x*** ", checksum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296 for (i = 0; i < 3; i++)
Al Virocc2d6592007-08-22 21:34:46 -04001297 ((__be16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
John W. Linvillebb531fc2005-11-07 00:58:07 -08001298 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Joe Perches0795af52007-10-03 17:59:30 -07001299 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001300 pr_cont(" %pM", dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301 /* Unfortunately an all zero eeprom passes the checksum and this
1302 gets found in the wild in failure cases. Crypto is hard 8) */
1303 if (!is_valid_ether_addr(dev->dev_addr)) {
1304 retval = -EINVAL;
Alexander Beregalov39738e12009-05-26 12:35:26 +00001305 pr_err("*** EEPROM MAC address is invalid.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 goto free_ring; /* With every pack */
1307 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001308 for (i = 0; i < 6; i++)
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001309 window_write8(vp, dev->dev_addr[i], 2, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001312 pr_cont(", IRQ %d\n", dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313 /* Tell them about an invalid IRQ. */
Yinghai Lu60e4ad72008-08-19 20:49:50 -07001314 if (dev->irq <= 0 || dev->irq >= nr_irqs)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001315 pr_warning(" *** Warning: IRQ %d is unlikely to work! ***\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001318 step = (window_read8(vp, 4, Wn4_NetDiag) & 0x1e) >> 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001319 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001320 pr_info(" product code %02x%02x rev %02x.%d date %02d-%02d-%02d\n",
1321 eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322 step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
1323 }
1324
1325
1326 if (pdev && vci->drv_flags & HAS_CB_FNS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 unsigned short n;
1328
John W. Linville62afe592005-11-07 00:58:02 -08001329 vp->cb_fn_base = pci_iomap(pdev, 2, 0);
1330 if (!vp->cb_fn_base) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331 retval = -ENOMEM;
John W. Linville62afe592005-11-07 00:58:02 -08001332 goto free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 }
John W. Linville62afe592005-11-07 00:58:02 -08001334
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001336 pr_info("%s: CardBus functions mapped %16.16llx->%p\n",
Greg Kroah-Hartman7c7459d2006-06-12 15:13:08 -07001337 print_name,
1338 (unsigned long long)pci_resource_start(pdev, 2),
John W. Linville62afe592005-11-07 00:58:02 -08001339 vp->cb_fn_base);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001342 n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343 if (vp->drv_flags & INVERT_LED_PWR)
1344 n |= 0x10;
1345 if (vp->drv_flags & INVERT_MII_PWR)
1346 n |= 0x4000;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001347 window_write16(vp, n, 2, Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 if (vp->drv_flags & WNO_XCVR_PWR) {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001349 window_write16(vp, 0x0800, 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 }
1351 }
1352
1353 /* Extract our information from the EEPROM data. */
1354 vp->info1 = eeprom[13];
1355 vp->info2 = eeprom[15];
1356 vp->capabilities = eeprom[16];
1357
1358 if (vp->info1 & 0x8000) {
1359 vp->full_duplex = 1;
1360 if (print_info)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001361 pr_info("Full duplex capable\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362 }
1363
1364 {
Arjan van de Venf71e1302006-03-03 21:33:57 -05001365 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 unsigned int config;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001367 vp->available_media = window_read16(vp, 3, Wn3_Options);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
1369 vp->available_media = 0x40;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001370 config = window_read32(vp, 3, Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001372 pr_debug(" Internal config register is %4.4x, transceivers %#x.\n",
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001373 config, window_read16(vp, 3, Wn3_Options));
Alexander Beregalov39738e12009-05-26 12:35:26 +00001374 pr_info(" %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375 8 << RAM_SIZE(config),
1376 RAM_WIDTH(config) ? "word" : "byte",
1377 ram_split[RAM_SPLIT(config)],
1378 AUTOSELECT(config) ? "autoselect/" : "",
1379 XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
1380 media_tbl[XCVR(config)].name);
1381 }
1382 vp->default_media = XCVR(config);
1383 if (vp->default_media == XCVR_NWAY)
1384 vp->has_nway = 1;
1385 vp->autoselect = AUTOSELECT(config);
1386 }
1387
1388 if (vp->media_override != 7) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001389 pr_info("%s: Media override to transceiver type %d (%s).\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390 print_name, vp->media_override,
1391 media_tbl[vp->media_override].name);
1392 dev->if_port = vp->media_override;
1393 } else
1394 dev->if_port = vp->default_media;
1395
1396 if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
1397 dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1398 int phy, phy_idx = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 mii_preamble_required++;
1400 if (vp->drv_flags & EXTRA_PREAMBLE)
1401 mii_preamble_required++;
Ben Hutchings344e0f62010-07-22 14:18:28 +00001402 mdio_sync(vp, 32);
Neil Horman106427e2005-11-07 00:58:03 -08001403 mdio_read(dev, 24, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
1405 int mii_status, phyx;
1406
1407 /*
1408 * For the 3c905CX we look at index 24 first, because it bogusly
1409 * reports an external PHY at all indices
1410 */
1411 if (phy == 0)
1412 phyx = 24;
1413 else if (phy <= 24)
1414 phyx = phy - 1;
1415 else
1416 phyx = phy;
Neil Horman106427e2005-11-07 00:58:03 -08001417 mii_status = mdio_read(dev, phyx, MII_BMSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418 if (mii_status && mii_status != 0xffff) {
1419 vp->phys[phy_idx++] = phyx;
1420 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001421 pr_info(" MII transceiver found at address %d, status %4x.\n",
1422 phyx, mii_status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423 }
1424 if ((mii_status & 0x0040) == 0)
1425 mii_preamble_required++;
1426 }
1427 }
1428 mii_preamble_required--;
1429 if (phy_idx == 0) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001430 pr_warning(" ***WARNING*** No MII transceivers found!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431 vp->phys[0] = 24;
1432 } else {
Neil Horman106427e2005-11-07 00:58:03 -08001433 vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 if (vp->full_duplex) {
1435 /* Only advertise the FD media types. */
1436 vp->advertising &= ~0x02A0;
1437 mdio_write(dev, vp->phys[0], 4, vp->advertising);
1438 }
1439 }
1440 vp->mii.phy_id = vp->phys[0];
1441 }
1442
1443 if (vp->capabilities & CapBusMaster) {
1444 vp->full_bus_master_tx = 1;
1445 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001446 pr_info(" Enabling bus-master transmits and %s receives.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447 (vp->info2 & 1) ? "early" : "whole-frame" );
1448 }
1449 vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
1450 vp->bus_master = 0; /* AKPM: vortex only */
1451 }
1452
1453 /* The 3c59x-specific entries in the device structure. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454 if (vp->full_bus_master_tx) {
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001455 dev->netdev_ops = &boomrang_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 /* Actually, it still should work with iommu. */
John W. Linville32fb5f02005-11-07 00:58:05 -08001457 if (card_idx < MAX_UNITS &&
1458 ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
1459 hw_checksums[card_idx] == 1)) {
Stephen Hemmingerd311b0d2005-11-07 00:58:09 -08001460 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 }
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001462 } else
1463 dev->netdev_ops = &vortex_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464
1465 if (print_info) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001466 pr_info("%s: scatter/gather %sabled. h/w checksums %sabled\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467 print_name,
1468 (dev->features & NETIF_F_SG) ? "en":"dis",
1469 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1470 }
1471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 dev->ethtool_ops = &vortex_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473 dev->watchdog_timeo = (watchdog * HZ) / 1000;
Stephen Hemminger48b47a52009-01-09 13:01:18 +00001474
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 if (pdev) {
1476 vp->pm_state_valid = 1;
1477 pci_save_state(VORTEX_PCI(vp));
1478 acpi_set_WOL(dev);
1479 }
1480 retval = register_netdev(dev);
1481 if (retval == 0)
1482 return 0;
1483
1484free_ring:
1485 pci_free_consistent(pdev,
1486 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1487 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1488 vp->rx_ring,
1489 vp->rx_ring_dma);
1490free_region:
1491 if (vp->must_free_region)
John W. Linville62afe592005-11-07 00:58:02 -08001492 release_region(dev->base_addr, vci->io_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493 free_netdev(dev);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001494 pr_err(PFX "vortex_probe1 fails. Returns %d\n", retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495out:
1496 return retval;
1497}
1498
1499static void
1500issue_and_wait(struct net_device *dev, int cmd)
1501{
John W. Linville62afe592005-11-07 00:58:02 -08001502 struct vortex_private *vp = netdev_priv(dev);
1503 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 int i;
1505
John W. Linville62afe592005-11-07 00:58:02 -08001506 iowrite16(cmd, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507 for (i = 0; i < 2000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001508 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 return;
1510 }
1511
1512 /* OK, that didn't work. Do it the slow way. One second */
1513 for (i = 0; i < 100000; i++) {
John W. Linville62afe592005-11-07 00:58:02 -08001514 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001516 pr_info("%s: command 0x%04x took %d usecs\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517 dev->name, cmd, i * 10);
1518 return;
1519 }
1520 udelay(10);
1521 }
Alexander Beregalov39738e12009-05-26 12:35:26 +00001522 pr_err("%s: command 0x%04x did not complete! Status=0x%x\n",
John W. Linville62afe592005-11-07 00:58:02 -08001523 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524}
1525
1526static void
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001527vortex_set_duplex(struct net_device *dev)
1528{
1529 struct vortex_private *vp = netdev_priv(dev);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001530
Alexander Beregalov39738e12009-05-26 12:35:26 +00001531 pr_info("%s: setting %s-duplex.\n",
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001532 dev->name, (vp->full_duplex) ? "full" : "half");
1533
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001534 /* Set the full-duplex bit. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001535 window_write16(vp,
1536 ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
1537 (vp->large_frames ? 0x40 : 0) |
1538 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
1539 0x100 : 0),
1540 3, Wn3_MAC_Ctrl);
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001541}
1542
1543static void vortex_check_media(struct net_device *dev, unsigned int init)
1544{
1545 struct vortex_private *vp = netdev_priv(dev);
1546 unsigned int ok_to_print = 0;
1547
1548 if (vortex_debug > 3)
1549 ok_to_print = 1;
1550
1551 if (mii_check_media(&vp->mii, ok_to_print, init)) {
1552 vp->full_duplex = vp->mii.full_duplex;
1553 vortex_set_duplex(dev);
1554 } else if (init) {
1555 vortex_set_duplex(dev);
1556 }
1557}
1558
Mark Hindleyc8303d12007-08-16 11:28:40 +01001559static int
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560vortex_up(struct net_device *dev)
1561{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001563 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564 unsigned int config;
Badari Pulavarty0280f9f2007-10-17 16:15:56 -07001565 int i, mii_reg1, mii_reg5, err = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566
1567 if (VORTEX_PCI(vp)) {
1568 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
Daniel Ritz3c8fad12005-05-05 16:15:44 -07001569 if (vp->pm_state_valid)
1570 pci_restore_state(VORTEX_PCI(vp));
Mark Hindleyc8303d12007-08-16 11:28:40 +01001571 err = pci_enable_device(VORTEX_PCI(vp));
1572 if (err) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001573 pr_warning("%s: Could not enable device\n",
Mark Hindleyc8303d12007-08-16 11:28:40 +01001574 dev->name);
1575 goto err_out;
1576 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577 }
1578
1579 /* Before initializing select the active media port. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001580 config = window_read32(vp, 3, Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001581
1582 if (vp->media_override != 7) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001583 pr_info("%s: Media override to transceiver %d (%s).\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584 dev->name, vp->media_override,
1585 media_tbl[vp->media_override].name);
1586 dev->if_port = vp->media_override;
1587 } else if (vp->autoselect) {
1588 if (vp->has_nway) {
1589 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001590 pr_info("%s: using NWAY device table, not %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591 dev->name, dev->if_port);
1592 dev->if_port = XCVR_NWAY;
1593 } else {
1594 /* Find first available media type, starting with 100baseTx. */
1595 dev->if_port = XCVR_100baseTx;
1596 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1597 dev->if_port = media_tbl[dev->if_port].next;
1598 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001599 pr_info("%s: first available media type: %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001600 dev->name, media_tbl[dev->if_port].name);
1601 }
1602 } else {
1603 dev->if_port = vp->default_media;
1604 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001605 pr_info("%s: using default media %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606 dev->name, media_tbl[dev->if_port].name);
1607 }
1608
1609 init_timer(&vp->timer);
1610 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1611 vp->timer.data = (unsigned long)dev;
1612 vp->timer.function = vortex_timer; /* timer handler */
1613 add_timer(&vp->timer);
1614
1615 init_timer(&vp->rx_oom_timer);
1616 vp->rx_oom_timer.data = (unsigned long)dev;
1617 vp->rx_oom_timer.function = rx_oom_timer;
1618
1619 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001620 pr_debug("%s: Initial media type %s.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621 dev->name, media_tbl[dev->if_port].name);
1622
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001623 vp->full_duplex = vp->mii.force_media;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624 config = BFINS(config, dev->if_port, 20, 4);
1625 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001626 pr_debug("vortex_up(): writing 0x%x to InternalConfig\n", config);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001627 window_write32(vp, config, 3, Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628
1629 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
Steffen Klassert09ce3512006-03-31 02:30:48 -08001630 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1631 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
1632 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
Steffen Klassert373492d2007-08-10 14:05:26 -07001633 vp->mii.full_duplex = vp->full_duplex;
Steffen Klassert09ce3512006-03-31 02:30:48 -08001634
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001635 vortex_check_media(dev, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001636 }
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001637 else
1638 vortex_set_duplex(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639
Steffen Klassert09ce3512006-03-31 02:30:48 -08001640 issue_and_wait(dev, TxReset);
1641 /*
1642 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1643 */
1644 issue_and_wait(dev, RxReset|0x04);
1645
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646
John W. Linville62afe592005-11-07 00:58:02 -08001647 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001648
1649 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001650 pr_debug("%s: vortex_up() irq %d media status %4.4x.\n",
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001651 dev->name, dev->irq, window_read16(vp, 4, Wn4_Media));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001652 }
1653
1654 /* Set the station address and mask in window 2 each time opened. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655 for (i = 0; i < 6; i++)
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001656 window_write8(vp, dev->dev_addr[i], 2, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657 for (; i < 12; i+=2)
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001658 window_write16(vp, 0, 2, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659
1660 if (vp->cb_fn_base) {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001661 unsigned short n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662 if (vp->drv_flags & INVERT_LED_PWR)
1663 n |= 0x10;
1664 if (vp->drv_flags & INVERT_MII_PWR)
1665 n |= 0x4000;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001666 window_write16(vp, n, 2, Wn2_ResetOptions);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667 }
1668
1669 if (dev->if_port == XCVR_10base2)
1670 /* Start the thinnet transceiver. We should really wait 50ms...*/
John W. Linville62afe592005-11-07 00:58:02 -08001671 iowrite16(StartCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672 if (dev->if_port != XCVR_NWAY) {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001673 window_write16(vp,
1674 (window_read16(vp, 4, Wn4_Media) &
1675 ~(Media_10TP|Media_SQE)) |
1676 media_tbl[dev->if_port].media_bits,
1677 4, Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678 }
1679
1680 /* Switch to the stats window, and clear all stats by reading. */
John W. Linville62afe592005-11-07 00:58:02 -08001681 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682 for (i = 0; i < 10; i++)
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001683 window_read8(vp, 6, i);
1684 window_read16(vp, 6, 10);
1685 window_read16(vp, 6, 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686 /* New: On the Vortex we must also clear the BadSSD counter. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001687 window_read8(vp, 4, 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688 /* ..and on the Boomerang we enable the extra statistics bits. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001689 window_write16(vp, 0x0040, 4, Wn4_NetDiag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690
1691 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1692 vp->cur_rx = vp->dirty_rx = 0;
1693 /* Initialize the RxEarly register as recommended. */
John W. Linville62afe592005-11-07 00:58:02 -08001694 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1695 iowrite32(0x0020, ioaddr + PktStatus);
1696 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001697 }
1698 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1699 vp->cur_tx = vp->dirty_tx = 0;
1700 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001701 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702 /* Clear the Rx, Tx rings. */
1703 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1704 vp->rx_ring[i].status = 0;
1705 for (i = 0; i < TX_RING_SIZE; i++)
1706 vp->tx_skbuff[i] = NULL;
John W. Linville62afe592005-11-07 00:58:02 -08001707 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001708 }
1709 /* Set receiver mode: presumably accept b-case and phys addr only. */
1710 set_rx_mode(dev);
1711 /* enable 802.1q tagged frames */
1712 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08001713 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714
John W. Linville62afe592005-11-07 00:58:02 -08001715 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1716 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717 /* Allow status bits to be seen. */
1718 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1719 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1720 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1721 (vp->bus_master ? DMADone : 0);
1722 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1723 (vp->full_bus_master_rx ? 0 : RxComplete) |
1724 StatsFull | HostError | TxComplete | IntReq
1725 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
John W. Linville62afe592005-11-07 00:58:02 -08001726 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 /* Ack all pending events, and set active indicator mask. */
John W. Linville62afe592005-11-07 00:58:02 -08001728 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08001730 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08001732 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 netif_start_queue (dev);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001734err_out:
1735 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736}
1737
1738static int
1739vortex_open(struct net_device *dev)
1740{
1741 struct vortex_private *vp = netdev_priv(dev);
1742 int i;
1743 int retval;
1744
1745 /* Use the now-standard shared IRQ implementation. */
1746 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
Joe Perchesc061b182010-08-23 18:20:03 +00001747 boomerang_interrupt : vortex_interrupt, IRQF_SHARED, dev->name, dev))) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001748 pr_err("%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001749 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 }
1751
1752 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1753 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001754 pr_debug("%s: Filling in the Rx ring.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 for (i = 0; i < RX_RING_SIZE; i++) {
1756 struct sk_buff *skb;
1757 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1758 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1759 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07001760
1761 skb = __netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN,
1762 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 vp->rx_skbuff[i] = skb;
1764 if (skb == NULL)
1765 break; /* Bad news! */
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07001766
1767 skb_reserve(skb, NET_IP_ALIGN); /* Align IP on 16 byte boundaries */
David S. Miller689be432005-06-28 15:25:31 -07001768 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 -07001769 }
1770 if (i != RX_RING_SIZE) {
1771 int j;
Alexander Beregalov39738e12009-05-26 12:35:26 +00001772 pr_emerg("%s: no memory for rx ring\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773 for (j = 0; j < i; j++) {
1774 if (vp->rx_skbuff[j]) {
1775 dev_kfree_skb(vp->rx_skbuff[j]);
1776 vp->rx_skbuff[j] = NULL;
1777 }
1778 }
1779 retval = -ENOMEM;
Mark Hindleyc8303d12007-08-16 11:28:40 +01001780 goto err_free_irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 }
1782 /* Wrap the ring. */
1783 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1784 }
1785
Mark Hindleyc8303d12007-08-16 11:28:40 +01001786 retval = vortex_up(dev);
1787 if (!retval)
1788 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789
Mark Hindleyc8303d12007-08-16 11:28:40 +01001790err_free_irq:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 free_irq(dev->irq, dev);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001792err:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001794 pr_err("%s: vortex_open() fails: returning %d\n", dev->name, retval);
Mark Hindleyc8303d12007-08-16 11:28:40 +01001795out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 return retval;
1797}
1798
1799static void
1800vortex_timer(unsigned long data)
1801{
1802 struct net_device *dev = (struct net_device *)data;
1803 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001804 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 int next_tick = 60*HZ;
1806 int ok = 0;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001807 int media_status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808
1809 if (vortex_debug > 2) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001810 pr_debug("%s: Media selection timer tick happened, %s.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811 dev->name, media_tbl[dev->if_port].name);
Alexander Beregalov39738e12009-05-26 12:35:26 +00001812 pr_debug("dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001813 }
1814
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001815 media_status = window_read16(vp, 4, Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816 switch (dev->if_port) {
1817 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1818 if (media_status & Media_LnkBeat) {
1819 netif_carrier_on(dev);
1820 ok = 1;
1821 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001822 pr_debug("%s: Media %s has link beat, %x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 dev->name, media_tbl[dev->if_port].name, media_status);
1824 } else {
1825 netif_carrier_off(dev);
1826 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001827 pr_debug("%s: Media %s has no link beat, %x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828 dev->name, media_tbl[dev->if_port].name, media_status);
1829 }
1830 }
1831 break;
1832 case XCVR_MII: case XCVR_NWAY:
1833 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 ok = 1;
Steffen Klassert125d5ce2006-03-26 01:37:39 -08001835 vortex_check_media(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836 }
1837 break;
1838 default: /* Other media types handled by Tx timeouts. */
1839 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001840 pr_debug("%s: Media %s has no indication, %x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001841 dev->name, media_tbl[dev->if_port].name, media_status);
1842 ok = 1;
1843 }
Steffen Klassertb4ff6452006-03-26 01:37:40 -08001844
1845 if (!netif_carrier_ok(dev))
1846 next_tick = 5*HZ;
1847
Steffen Klasserte94d10e2006-03-26 01:37:41 -08001848 if (vp->medialock)
1849 goto leave_media_alone;
1850
Steffen Klasserta880c4c2006-03-26 01:37:43 -08001851 if (!ok) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852 unsigned int config;
1853
Ben Hutchingsde847272010-06-29 15:26:56 +00001854 spin_lock_irq(&vp->lock);
1855
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856 do {
1857 dev->if_port = media_tbl[dev->if_port].next;
1858 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1859 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1860 dev->if_port = vp->default_media;
1861 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001862 pr_debug("%s: Media selection failing, using default %s port.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863 dev->name, media_tbl[dev->if_port].name);
1864 } else {
1865 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001866 pr_debug("%s: Media selection failed, now trying %s port.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867 dev->name, media_tbl[dev->if_port].name);
1868 next_tick = media_tbl[dev->if_port].wait;
1869 }
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001870 window_write16(vp,
1871 (media_status & ~(Media_10TP|Media_SQE)) |
1872 media_tbl[dev->if_port].media_bits,
1873 4, Wn4_Media);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001875 config = window_read32(vp, 3, Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876 config = BFINS(config, dev->if_port, 20, 4);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001877 window_write32(vp, config, 3, Wn3_Config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001878
John W. Linville62afe592005-11-07 00:58:02 -08001879 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880 ioaddr + EL3_CMD);
1881 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001882 pr_debug("wrote 0x%08x to Wn3_Config\n", config);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
Ben Hutchingsde847272010-06-29 15:26:56 +00001884
1885 spin_unlock_irq(&vp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887
1888leave_media_alone:
1889 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001890 pr_debug("%s: Media selection timer finished, %s.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891 dev->name, media_tbl[dev->if_port].name);
1892
1893 mod_timer(&vp->timer, RUN_AT(next_tick));
1894 if (vp->deferred)
John W. Linville62afe592005-11-07 00:58:02 -08001895 iowrite16(FakeIntr, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896}
1897
1898static void vortex_tx_timeout(struct net_device *dev)
1899{
1900 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001901 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902
Alexander Beregalov39738e12009-05-26 12:35:26 +00001903 pr_err("%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08001904 dev->name, ioread8(ioaddr + TxStatus),
1905 ioread16(ioaddr + EL3_STATUS));
Alexander Beregalov39738e12009-05-26 12:35:26 +00001906 pr_err(" diagnostics: net %04x media %04x dma %08x fifo %04x\n",
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001907 window_read16(vp, 4, Wn4_NetDiag),
1908 window_read16(vp, 4, Wn4_Media),
John W. Linville62afe592005-11-07 00:58:02 -08001909 ioread32(ioaddr + PktStatus),
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00001910 window_read16(vp, 4, Wn4_FIFODiag));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911 /* Slight code bloat to be user friendly. */
John W. Linville62afe592005-11-07 00:58:02 -08001912 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
Alexander Beregalov39738e12009-05-26 12:35:26 +00001913 pr_err("%s: Transmitter encountered 16 collisions --"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914 " network cable problem?\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08001915 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001916 pr_err("%s: Interrupt posted but not delivered --"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917 " IRQ blocked by another device?\n", dev->name);
1918 /* Bad idea here.. but we might as well handle a few events. */
1919 {
1920 /*
1921 * Block interrupts because vortex_interrupt does a bare spin_lock()
1922 */
1923 unsigned long flags;
1924 local_irq_save(flags);
1925 if (vp->full_bus_master_tx)
David Howells7d12e782006-10-05 14:55:46 +01001926 boomerang_interrupt(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001927 else
David Howells7d12e782006-10-05 14:55:46 +01001928 vortex_interrupt(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001929 local_irq_restore(flags);
1930 }
1931 }
1932
1933 if (vortex_debug > 0)
1934 dump_tx_ring(dev);
1935
1936 issue_and_wait(dev, TxReset);
1937
Paulius Zaleckas1daad052008-05-05 14:01:29 +02001938 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001939 if (vp->full_bus_master_tx) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001940 pr_debug("%s: Resetting the Tx ring pointer.\n", dev->name);
John W. Linville62afe592005-11-07 00:58:02 -08001941 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
1942 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943 ioaddr + DownListPtr);
1944 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
1945 netif_wake_queue (dev);
1946 if (vp->drv_flags & IS_BOOMERANG)
John W. Linville62afe592005-11-07 00:58:02 -08001947 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
1948 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949 } else {
Paulius Zaleckas1daad052008-05-05 14:01:29 +02001950 dev->stats.tx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951 netif_wake_queue(dev);
1952 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001953
Linus Torvalds1da177e2005-04-16 15:20:36 -07001954 /* Issue Tx Enable */
John W. Linville62afe592005-11-07 00:58:02 -08001955 iowrite16(TxEnable, ioaddr + EL3_CMD);
Eric Dumazet1ae5dc32010-05-10 05:01:31 -07001956 dev->trans_start = jiffies; /* prevent tx timeout */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957}
1958
1959/*
1960 * Handle uncommon interrupt sources. This is a separate routine to minimize
1961 * the cache impact.
1962 */
1963static void
1964vortex_error(struct net_device *dev, int status)
1965{
1966 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08001967 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968 int do_tx_reset = 0, reset_mask = 0;
1969 unsigned char tx_status = 0;
1970
1971 if (vortex_debug > 2) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001972 pr_err("%s: vortex_error(), status=0x%x\n", dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973 }
1974
1975 if (status & TxComplete) { /* Really "TxError" for us. */
John W. Linville62afe592005-11-07 00:58:02 -08001976 tx_status = ioread8(ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001977 /* Presumably a tx-timeout. We must merely re-enable. */
Joe Perches8e95a202009-12-03 07:58:21 +00001978 if (vortex_debug > 2 ||
1979 (tx_status != 0x88 && vortex_debug > 0)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001980 pr_err("%s: Transmit error, Tx status register %2.2x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001981 dev->name, tx_status);
1982 if (tx_status == 0x82) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00001983 pr_err("Probably a duplex mismatch. See "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984 "Documentation/networking/vortex.txt\n");
1985 }
1986 dump_tx_ring(dev);
1987 }
Paulius Zaleckas1daad052008-05-05 14:01:29 +02001988 if (tx_status & 0x14) dev->stats.tx_fifo_errors++;
1989 if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
Andrew Morton00007542006-03-31 02:30:47 -08001990 if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
John W. Linville62afe592005-11-07 00:58:02 -08001991 iowrite8(0, ioaddr + TxStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 if (tx_status & 0x30) { /* txJabber or txUnderrun */
1993 do_tx_reset = 1;
Andrew Morton00007542006-03-31 02:30:47 -08001994 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
1995 do_tx_reset = 1;
1996 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
1997 } else { /* Merely re-enable the transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08001998 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999 }
2000 }
2001
Ben Hutchings89b12fa2010-09-06 18:28:56 -07002002 if (status & RxEarly) /* Rx early is unused. */
John W. Linville62afe592005-11-07 00:58:02 -08002003 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
Ben Hutchings89b12fa2010-09-06 18:28:56 -07002004
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005 if (status & StatsFull) { /* Empty statistics. */
2006 static int DoneDidThat;
2007 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002008 pr_debug("%s: Updating stats.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 update_stats(ioaddr, dev);
2010 /* HACK: Disable statistics as an interrupt source. */
2011 /* This occurs when we have the wrong media type! */
2012 if (DoneDidThat == 0 &&
John W. Linville62afe592005-11-07 00:58:02 -08002013 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002014 pr_warning("%s: Updating statistics failed, disabling "
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015 "stats as an interrupt source.\n", dev->name);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002016 iowrite16(SetIntrEnb |
2017 (window_read16(vp, 5, 10) & ~StatsFull),
2018 ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002019 vp->intr_enable &= ~StatsFull;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020 DoneDidThat++;
2021 }
2022 }
2023 if (status & IntReq) { /* Restore all interrupt sources. */
John W. Linville62afe592005-11-07 00:58:02 -08002024 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
2025 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002026 }
2027 if (status & HostError) {
2028 u16 fifo_diag;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002029 fifo_diag = window_read16(vp, 4, Wn4_FIFODiag);
Alexander Beregalov39738e12009-05-26 12:35:26 +00002030 pr_err("%s: Host error, FIFO diagnostic register %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002031 dev->name, fifo_diag);
2032 /* Adapter failure requires Tx/Rx reset and reinit. */
2033 if (vp->full_bus_master_tx) {
John W. Linville62afe592005-11-07 00:58:02 -08002034 int bus_status = ioread32(ioaddr + PktStatus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 /* 0x80000000 PCI master abort. */
2036 /* 0x40000000 PCI target abort. */
2037 if (vortex_debug)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002038 pr_err("%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039
2040 /* In this case, blow the card away */
2041 /* Must not enter D3 or we can't legally issue the reset! */
2042 vortex_down(dev, 0);
2043 issue_and_wait(dev, TotalReset | 0xff);
2044 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
2045 } else if (fifo_diag & 0x0400)
2046 do_tx_reset = 1;
2047 if (fifo_diag & 0x3000) {
2048 /* Reset Rx fifo and upload logic */
2049 issue_and_wait(dev, RxReset|0x07);
2050 /* Set the Rx filter to the current state. */
2051 set_rx_mode(dev);
2052 /* enable 802.1q VLAN tagged frames */
2053 set_8021q_mode(dev, 1);
John W. Linville62afe592005-11-07 00:58:02 -08002054 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2055 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002056 }
2057 }
2058
2059 if (do_tx_reset) {
2060 issue_and_wait(dev, TxReset|reset_mask);
John W. Linville62afe592005-11-07 00:58:02 -08002061 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 if (!vp->full_bus_master_tx)
2063 netif_wake_queue(dev);
2064 }
2065}
2066
Stephen Hemminger27a1de92009-08-31 19:50:54 +00002067static netdev_tx_t
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2069{
2070 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002071 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072
2073 /* Put out the doubleword header... */
John W. Linville62afe592005-11-07 00:58:02 -08002074 iowrite32(skb->len, ioaddr + TX_FIFO);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075 if (vp->bus_master) {
2076 /* Set the bus-master controller to transfer the packet. */
2077 int len = (skb->len + 3) & ~3;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002078 vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len,
2079 PCI_DMA_TODEVICE);
Ben Hutchingsde847272010-06-29 15:26:56 +00002080 spin_lock_irq(&vp->window_lock);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002081 window_set(vp, 7);
2082 iowrite32(vp->tx_skb_dma, ioaddr + Wn7_MasterAddr);
John W. Linville62afe592005-11-07 00:58:02 -08002083 iowrite16(len, ioaddr + Wn7_MasterLen);
Ben Hutchingsde847272010-06-29 15:26:56 +00002084 spin_unlock_irq(&vp->window_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002085 vp->tx_skb = skb;
John W. Linville62afe592005-11-07 00:58:02 -08002086 iowrite16(StartDMADown, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087 /* netif_wake_queue() will be called at the DMADone interrupt. */
2088 } else {
2089 /* ... and the packet rounded to a doubleword. */
John W. Linville62afe592005-11-07 00:58:02 -08002090 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091 dev_kfree_skb (skb);
John W. Linville62afe592005-11-07 00:58:02 -08002092 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093 netif_start_queue (dev); /* AKPM: redundant? */
2094 } else {
2095 /* Interrupt us when the FIFO has room for max-sized packet. */
2096 netif_stop_queue(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002097 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098 }
2099 }
2100
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101
2102 /* Clear the Tx status stack. */
2103 {
2104 int tx_status;
2105 int i = 32;
2106
John W. Linville62afe592005-11-07 00:58:02 -08002107 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2109 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002110 pr_debug("%s: Tx error, status %2.2x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 dev->name, tx_status);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002112 if (tx_status & 0x04) dev->stats.tx_fifo_errors++;
2113 if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114 if (tx_status & 0x30) {
2115 issue_and_wait(dev, TxReset);
2116 }
John W. Linville62afe592005-11-07 00:58:02 -08002117 iowrite16(TxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118 }
John W. Linville62afe592005-11-07 00:58:02 -08002119 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 }
2121 }
Patrick McHardy6ed10652009-06-23 06:03:08 +00002122 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123}
2124
Stephen Hemminger27a1de92009-08-31 19:50:54 +00002125static netdev_tx_t
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2127{
2128 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002129 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130 /* Calculate the next Tx descriptor entry. */
2131 int entry = vp->cur_tx % TX_RING_SIZE;
2132 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2133 unsigned long flags;
2134
2135 if (vortex_debug > 6) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002136 pr_debug("boomerang_start_xmit()\n");
2137 pr_debug("%s: Trying to send a packet, Tx index %d.\n",
John W. Linville0f667ff2005-06-21 17:15:14 -07002138 dev->name, vp->cur_tx);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002139 }
2140
Neil Hormanaa25ab72010-08-11 05:12:57 +00002141 /*
2142 * We can't allow a recursion from our interrupt handler back into the
2143 * tx routine, as they take the same spin lock, and that causes
2144 * deadlock. Just return NETDEV_TX_BUSY and let the stack try again in
2145 * a bit
2146 */
2147 if (vp->handling_irq)
2148 return NETDEV_TX_BUSY;
2149
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2151 if (vortex_debug > 0)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002152 pr_warning("%s: BUG! Tx Ring full, refusing to send buffer.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153 dev->name);
2154 netif_stop_queue(dev);
Patrick McHardy5b548142009-06-12 06:22:29 +00002155 return NETDEV_TX_BUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156 }
2157
2158 vp->tx_skbuff[entry] = skb;
2159
2160 vp->tx_ring[entry].next = 0;
2161#if DO_ZEROCOPY
Patrick McHardy84fa7932006-08-29 16:44:56 -07002162 if (skb->ip_summed != CHECKSUM_PARTIAL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2164 else
2165 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2166
2167 if (!skb_shinfo(skb)->nr_frags) {
2168 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2169 skb->len, PCI_DMA_TODEVICE));
2170 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2171 } else {
2172 int i;
2173
2174 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
Eric Dumazete743d312010-04-14 15:59:40 -07002175 skb_headlen(skb), PCI_DMA_TODEVICE));
2176 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb_headlen(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177
2178 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2179 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2180
2181 vp->tx_ring[entry].frag[i+1].addr =
2182 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2183 (void*)page_address(frag->page) + frag->page_offset,
2184 frag->size, PCI_DMA_TODEVICE));
2185
2186 if (i == skb_shinfo(skb)->nr_frags-1)
2187 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2188 else
2189 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2190 }
2191 }
2192#else
2193 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2194 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2195 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2196#endif
2197
2198 spin_lock_irqsave(&vp->lock, flags);
2199 /* Wait for the stall to complete. */
2200 issue_and_wait(dev, DownStall);
2201 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
John W. Linville62afe592005-11-07 00:58:02 -08002202 if (ioread32(ioaddr + DownListPtr) == 0) {
2203 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204 vp->queued_packet++;
2205 }
2206
2207 vp->cur_tx++;
2208 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2209 netif_stop_queue (dev);
2210 } else { /* Clear previous interrupt enable. */
2211#if defined(tx_interrupt_mitigation)
2212 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2213 * were selected, this would corrupt DN_COMPLETE. No?
2214 */
2215 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2216#endif
2217 }
John W. Linville62afe592005-11-07 00:58:02 -08002218 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219 spin_unlock_irqrestore(&vp->lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00002220 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002221}
2222
2223/* The interrupt handler does all of the Rx thread work and cleans up
2224 after the Tx thread. */
2225
2226/*
2227 * This is the ISR for the vortex series chips.
2228 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2229 */
2230
2231static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01002232vortex_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233{
2234 struct net_device *dev = dev_id;
2235 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002236 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 int status;
2238 int work_done = max_interrupt_work;
2239 int handled = 0;
2240
John W. Linville62afe592005-11-07 00:58:02 -08002241 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002242 spin_lock(&vp->lock);
2243
John W. Linville62afe592005-11-07 00:58:02 -08002244 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002245
2246 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002247 pr_debug("vortex_interrupt(). status=0x%4x\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002248
2249 if ((status & IntLatch) == 0)
2250 goto handler_exit; /* No interrupt: shared IRQs cause this */
2251 handled = 1;
2252
2253 if (status & IntReq) {
2254 status |= vp->deferred;
2255 vp->deferred = 0;
2256 }
2257
2258 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2259 goto handler_exit;
2260
2261 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002262 pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002263 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264
Ben Hutchingsde847272010-06-29 15:26:56 +00002265 spin_lock(&vp->window_lock);
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002266 window_set(vp, 7);
2267
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268 do {
2269 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002270 pr_debug("%s: In interrupt loop, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271 dev->name, status);
2272 if (status & RxComplete)
2273 vortex_rx(dev);
2274
2275 if (status & TxAvailable) {
2276 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002277 pr_debug(" TX room bit was handled.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278 /* There's room in the FIFO for a full-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002279 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002280 netif_wake_queue (dev);
2281 }
2282
2283 if (status & DMADone) {
John W. Linville62afe592005-11-07 00:58:02 -08002284 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2285 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002286 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2287 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
John W. Linville62afe592005-11-07 00:58:02 -08002288 if (ioread16(ioaddr + TxFree) > 1536) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289 /*
2290 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2291 * insufficient FIFO room, the TxAvailable test will succeed and call
2292 * netif_wake_queue()
2293 */
2294 netif_wake_queue(dev);
2295 } else { /* Interrupt when FIFO has room for max-sized packet. */
John W. Linville62afe592005-11-07 00:58:02 -08002296 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002297 netif_stop_queue(dev);
2298 }
2299 }
2300 }
2301 /* Check for all uncommon interrupts at once. */
2302 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2303 if (status == 0xffff)
2304 break;
Ben Hutchings89b12fa2010-09-06 18:28:56 -07002305 if (status & RxEarly)
2306 vortex_rx(dev);
2307 spin_unlock(&vp->window_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308 vortex_error(dev, status);
Ben Hutchings89b12fa2010-09-06 18:28:56 -07002309 spin_lock(&vp->window_lock);
2310 window_set(vp, 7);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311 }
2312
2313 if (--work_done < 0) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002314 pr_warning("%s: Too much work in interrupt, status %4.4x.\n",
2315 dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002316 /* Disable all pending interrupts. */
2317 do {
2318 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002319 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002321 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2322 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323 /* The timer will reenable interrupts. */
2324 mod_timer(&vp->timer, jiffies + 1*HZ);
2325 break;
2326 }
2327 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002328 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2329 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002330
Ben Hutchingsde847272010-06-29 15:26:56 +00002331 spin_unlock(&vp->window_lock);
2332
Linus Torvalds1da177e2005-04-16 15:20:36 -07002333 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002334 pr_debug("%s: exiting interrupt, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335 dev->name, status);
2336handler_exit:
2337 spin_unlock(&vp->lock);
2338 return IRQ_RETVAL(handled);
2339}
2340
2341/*
2342 * This is the ISR for the boomerang series chips.
2343 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2344 */
2345
2346static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01002347boomerang_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002348{
2349 struct net_device *dev = dev_id;
2350 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002351 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002352 int status;
2353 int work_done = max_interrupt_work;
2354
John W. Linville62afe592005-11-07 00:58:02 -08002355 ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002356
Neil Hormanaa25ab72010-08-11 05:12:57 +00002357
Linus Torvalds1da177e2005-04-16 15:20:36 -07002358 /*
2359 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2360 * and boomerang_start_xmit
2361 */
2362 spin_lock(&vp->lock);
Neil Hormanaa25ab72010-08-11 05:12:57 +00002363 vp->handling_irq = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364
John W. Linville62afe592005-11-07 00:58:02 -08002365 status = ioread16(ioaddr + EL3_STATUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002366
2367 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002368 pr_debug("boomerang_interrupt. status=0x%4x\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369
2370 if ((status & IntLatch) == 0)
2371 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2372
2373 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2374 if (vortex_debug > 1)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002375 pr_debug("boomerang_interrupt(1): status = 0xffff\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002376 goto handler_exit;
2377 }
2378
2379 if (status & IntReq) {
2380 status |= vp->deferred;
2381 vp->deferred = 0;
2382 }
2383
2384 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002385 pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002386 dev->name, status, ioread8(ioaddr + Timer));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002387 do {
2388 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002389 pr_debug("%s: In interrupt loop, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002390 dev->name, status);
2391 if (status & UpComplete) {
John W. Linville62afe592005-11-07 00:58:02 -08002392 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002394 pr_debug("boomerang_interrupt->boomerang_rx\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002395 boomerang_rx(dev);
2396 }
2397
2398 if (status & DownComplete) {
2399 unsigned int dirty_tx = vp->dirty_tx;
2400
John W. Linville62afe592005-11-07 00:58:02 -08002401 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002402 while (vp->cur_tx - dirty_tx > 0) {
2403 int entry = dirty_tx % TX_RING_SIZE;
2404#if 1 /* AKPM: the latter is faster, but cyclone-only */
John W. Linville62afe592005-11-07 00:58:02 -08002405 if (ioread32(ioaddr + DownListPtr) ==
Linus Torvalds1da177e2005-04-16 15:20:36 -07002406 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2407 break; /* It still hasn't been processed. */
2408#else
2409 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2410 break; /* It still hasn't been processed. */
2411#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002412
Linus Torvalds1da177e2005-04-16 15:20:36 -07002413 if (vp->tx_skbuff[entry]) {
2414 struct sk_buff *skb = vp->tx_skbuff[entry];
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002415#if DO_ZEROCOPY
Linus Torvalds1da177e2005-04-16 15:20:36 -07002416 int i;
2417 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2418 pci_unmap_single(VORTEX_PCI(vp),
2419 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2420 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2421 PCI_DMA_TODEVICE);
2422#else
2423 pci_unmap_single(VORTEX_PCI(vp),
2424 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2425#endif
2426 dev_kfree_skb_irq(skb);
2427 vp->tx_skbuff[entry] = NULL;
2428 } else {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002429 pr_debug("boomerang_interrupt: no skb!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430 }
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002431 /* dev->stats.tx_packets++; Counted below. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432 dirty_tx++;
2433 }
2434 vp->dirty_tx = dirty_tx;
2435 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2436 if (vortex_debug > 6)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002437 pr_debug("boomerang_interrupt: wake queue\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438 netif_wake_queue (dev);
2439 }
2440 }
2441
2442 /* Check for all uncommon interrupts at once. */
2443 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2444 vortex_error(dev, status);
2445
2446 if (--work_done < 0) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002447 pr_warning("%s: Too much work in interrupt, status %4.4x.\n",
2448 dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002449 /* Disable all pending interrupts. */
2450 do {
2451 vp->deferred |= status;
John W. Linville62afe592005-11-07 00:58:02 -08002452 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002453 ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08002454 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2455 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002456 /* The timer will reenable interrupts. */
2457 mod_timer(&vp->timer, jiffies + 1*HZ);
2458 break;
2459 }
2460 /* Acknowledge the IRQ. */
John W. Linville62afe592005-11-07 00:58:02 -08002461 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002462 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
John W. Linville62afe592005-11-07 00:58:02 -08002463 iowrite32(0x8000, vp->cb_fn_base + 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002464
John W. Linville62afe592005-11-07 00:58:02 -08002465 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002466
2467 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002468 pr_debug("%s: exiting interrupt, status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002469 dev->name, status);
2470handler_exit:
Neil Hormanaa25ab72010-08-11 05:12:57 +00002471 vp->handling_irq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002472 spin_unlock(&vp->lock);
2473 return IRQ_HANDLED;
2474}
2475
2476static int vortex_rx(struct net_device *dev)
2477{
2478 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002479 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002480 int i;
2481 short rx_status;
2482
2483 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002484 pr_debug("vortex_rx(): status %4.4x, rx_status %4.4x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002485 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2486 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487 if (rx_status & 0x4000) { /* Error, update stats. */
John W. Linville62afe592005-11-07 00:58:02 -08002488 unsigned char rx_error = ioread8(ioaddr + RxErrors);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002489 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002490 pr_debug(" Rx error: status %2.2x.\n", rx_error);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002491 dev->stats.rx_errors++;
2492 if (rx_error & 0x01) dev->stats.rx_over_errors++;
2493 if (rx_error & 0x02) dev->stats.rx_length_errors++;
2494 if (rx_error & 0x04) dev->stats.rx_frame_errors++;
2495 if (rx_error & 0x08) dev->stats.rx_crc_errors++;
2496 if (rx_error & 0x10) dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002497 } else {
2498 /* The packet length: up to 4.5K!. */
2499 int pkt_len = rx_status & 0x1fff;
2500 struct sk_buff *skb;
2501
2502 skb = dev_alloc_skb(pkt_len + 5);
2503 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002504 pr_debug("Receiving packet size %d status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002505 pkt_len, rx_status);
2506 if (skb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002507 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2508 /* 'skb_put()' points to the start of sk_buff data area. */
2509 if (vp->bus_master &&
John W. Linville62afe592005-11-07 00:58:02 -08002510 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002511 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2512 pkt_len, PCI_DMA_FROMDEVICE);
John W. Linville62afe592005-11-07 00:58:02 -08002513 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2514 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2515 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2516 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002517 ;
2518 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2519 } else {
John W. Linville62afe592005-11-07 00:58:02 -08002520 ioread32_rep(ioaddr + RX_FIFO,
2521 skb_put(skb, pkt_len),
2522 (pkt_len + 3) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002523 }
John W. Linville62afe592005-11-07 00:58:02 -08002524 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525 skb->protocol = eth_type_trans(skb, dev);
2526 netif_rx(skb);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002527 dev->stats.rx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528 /* Wait a limited time to go to next packet. */
2529 for (i = 200; i >= 0; i--)
John W. Linville62afe592005-11-07 00:58:02 -08002530 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531 break;
2532 continue;
2533 } else if (vortex_debug > 0)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002534 pr_notice("%s: No memory to allocate a sk_buff of size %d.\n",
2535 dev->name, pkt_len);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002536 dev->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002538 issue_and_wait(dev, RxDiscard);
2539 }
2540
2541 return 0;
2542}
2543
2544static int
2545boomerang_rx(struct net_device *dev)
2546{
2547 struct vortex_private *vp = netdev_priv(dev);
2548 int entry = vp->cur_rx % RX_RING_SIZE;
John W. Linville62afe592005-11-07 00:58:02 -08002549 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002550 int rx_status;
2551 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2552
2553 if (vortex_debug > 5)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002554 pr_debug("boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002555
2556 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2557 if (--rx_work_limit < 0)
2558 break;
2559 if (rx_status & RxDError) { /* Error, update stats. */
2560 unsigned char rx_error = rx_status >> 16;
2561 if (vortex_debug > 2)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002562 pr_debug(" Rx error: status %2.2x.\n", rx_error);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002563 dev->stats.rx_errors++;
2564 if (rx_error & 0x01) dev->stats.rx_over_errors++;
2565 if (rx_error & 0x02) dev->stats.rx_length_errors++;
2566 if (rx_error & 0x04) dev->stats.rx_frame_errors++;
2567 if (rx_error & 0x08) dev->stats.rx_crc_errors++;
2568 if (rx_error & 0x10) dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002569 } else {
2570 /* The packet length: up to 4.5K!. */
2571 int pkt_len = rx_status & 0x1fff;
2572 struct sk_buff *skb;
2573 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2574
2575 if (vortex_debug > 4)
Alexander Beregalov39738e12009-05-26 12:35:26 +00002576 pr_debug("Receiving packet size %d status %4.4x.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002577 pkt_len, rx_status);
2578
2579 /* Check if the packet is long enough to just accept without
2580 copying to a properly sized skbuff. */
Al Virocc2d6592007-08-22 21:34:46 -04002581 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002582 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2583 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2584 /* 'skb_put()' points to the start of sk_buff data area. */
2585 memcpy(skb_put(skb, pkt_len),
David S. Miller689be432005-06-28 15:25:31 -07002586 vp->rx_skbuff[entry]->data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002587 pkt_len);
2588 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2589 vp->rx_copy++;
2590 } else {
2591 /* Pass up the skbuff already on the Rx ring. */
2592 skb = vp->rx_skbuff[entry];
2593 vp->rx_skbuff[entry] = NULL;
2594 skb_put(skb, pkt_len);
2595 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2596 vp->rx_nocopy++;
2597 }
2598 skb->protocol = eth_type_trans(skb, dev);
2599 { /* Use hardware checksum info. */
2600 int csum_bits = rx_status & 0xee000000;
2601 if (csum_bits &&
2602 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2603 csum_bits == (IPChksumValid | UDPChksumValid))) {
2604 skb->ip_summed = CHECKSUM_UNNECESSARY;
2605 vp->rx_csumhits++;
2606 }
2607 }
2608 netif_rx(skb);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002609 dev->stats.rx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002610 }
2611 entry = (++vp->cur_rx) % RX_RING_SIZE;
2612 }
2613 /* Refill the Rx ring buffers. */
2614 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2615 struct sk_buff *skb;
2616 entry = vp->dirty_rx % RX_RING_SIZE;
2617 if (vp->rx_skbuff[entry] == NULL) {
Eric Dumazet89d71a62009-10-13 05:34:20 +00002618 skb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002619 if (skb == NULL) {
2620 static unsigned long last_jif;
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -08002621 if (time_after(jiffies, last_jif + 10 * HZ)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002622 pr_warning("%s: memory shortage\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002623 last_jif = jiffies;
2624 }
2625 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2626 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2627 break; /* Bad news! */
2628 }
Stephen Hemminger9a5d34142008-07-25 12:07:22 -07002629
David S. Miller689be432005-06-28 15:25:31 -07002630 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 -07002631 vp->rx_skbuff[entry] = skb;
2632 }
2633 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
John W. Linville62afe592005-11-07 00:58:02 -08002634 iowrite16(UpUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002635 }
2636 return 0;
2637}
2638
2639/*
2640 * If we've hit a total OOM refilling the Rx ring we poll once a second
2641 * for some memory. Otherwise there is no way to restart the rx process.
2642 */
2643static void
2644rx_oom_timer(unsigned long arg)
2645{
2646 struct net_device *dev = (struct net_device *)arg;
2647 struct vortex_private *vp = netdev_priv(dev);
2648
2649 spin_lock_irq(&vp->lock);
2650 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2651 boomerang_rx(dev);
2652 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002653 pr_debug("%s: rx_oom_timer %s\n", dev->name,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002654 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2655 }
2656 spin_unlock_irq(&vp->lock);
2657}
2658
2659static void
2660vortex_down(struct net_device *dev, int final_down)
2661{
2662 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002663 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664
2665 netif_stop_queue (dev);
2666
2667 del_timer_sync(&vp->rx_oom_timer);
2668 del_timer_sync(&vp->timer);
2669
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002670 /* Turn off statistics ASAP. We update dev->stats below. */
John W. Linville62afe592005-11-07 00:58:02 -08002671 iowrite16(StatsDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002672
2673 /* Disable the receiver and transmitter. */
John W. Linville62afe592005-11-07 00:58:02 -08002674 iowrite16(RxDisable, ioaddr + EL3_CMD);
2675 iowrite16(TxDisable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002676
2677 /* Disable receiving 802.1q tagged frames */
2678 set_8021q_mode(dev, 0);
2679
2680 if (dev->if_port == XCVR_10base2)
2681 /* Turn off thinnet power. Green! */
John W. Linville62afe592005-11-07 00:58:02 -08002682 iowrite16(StopCoax, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683
John W. Linville62afe592005-11-07 00:58:02 -08002684 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685
2686 update_stats(ioaddr, dev);
2687 if (vp->full_bus_master_rx)
John W. Linville62afe592005-11-07 00:58:02 -08002688 iowrite32(0, ioaddr + UpListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002689 if (vp->full_bus_master_tx)
John W. Linville62afe592005-11-07 00:58:02 -08002690 iowrite32(0, ioaddr + DownListPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002691
2692 if (final_down && VORTEX_PCI(vp)) {
Daniel Ritz3c8fad12005-05-05 16:15:44 -07002693 vp->pm_state_valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002694 pci_save_state(VORTEX_PCI(vp));
2695 acpi_set_WOL(dev);
2696 }
2697}
2698
2699static int
2700vortex_close(struct net_device *dev)
2701{
2702 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002703 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002704 int i;
2705
2706 if (netif_device_present(dev))
2707 vortex_down(dev, 1);
2708
2709 if (vortex_debug > 1) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002710 pr_debug("%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002711 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
Alexander Beregalov39738e12009-05-26 12:35:26 +00002712 pr_debug("%s: vortex close stats: rx_nocopy %d rx_copy %d"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002713 " tx_queued %d Rx pre-checksummed %d.\n",
2714 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2715 }
2716
2717#if DO_ZEROCOPY
John W. Linville32fb5f02005-11-07 00:58:05 -08002718 if (vp->rx_csumhits &&
2719 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2720 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00002721 pr_warning("%s supports hardware checksums, and we're not using them!\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002722 }
2723#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002724
Linus Torvalds1da177e2005-04-16 15:20:36 -07002725 free_irq(dev->irq, dev);
2726
2727 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2728 for (i = 0; i < RX_RING_SIZE; i++)
2729 if (vp->rx_skbuff[i]) {
2730 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2731 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2732 dev_kfree_skb(vp->rx_skbuff[i]);
2733 vp->rx_skbuff[i] = NULL;
2734 }
2735 }
2736 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2737 for (i = 0; i < TX_RING_SIZE; i++) {
2738 if (vp->tx_skbuff[i]) {
2739 struct sk_buff *skb = vp->tx_skbuff[i];
2740#if DO_ZEROCOPY
2741 int k;
2742
2743 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2744 pci_unmap_single(VORTEX_PCI(vp),
2745 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2746 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2747 PCI_DMA_TODEVICE);
2748#else
2749 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2750#endif
2751 dev_kfree_skb(skb);
2752 vp->tx_skbuff[i] = NULL;
2753 }
2754 }
2755 }
2756
2757 return 0;
2758}
2759
2760static void
2761dump_tx_ring(struct net_device *dev)
2762{
2763 if (vortex_debug > 0) {
2764 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002765 void __iomem *ioaddr = vp->ioaddr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002766
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767 if (vp->full_bus_master_tx) {
2768 int i;
John W. Linville62afe592005-11-07 00:58:02 -08002769 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002770
Alexander Beregalov39738e12009-05-26 12:35:26 +00002771 pr_err(" Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002772 vp->full_bus_master_tx,
2773 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2774 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
Alexander Beregalov39738e12009-05-26 12:35:26 +00002775 pr_err(" Transmit list %8.8x vs. %p.\n",
John W. Linville62afe592005-11-07 00:58:02 -08002776 ioread32(ioaddr + DownListPtr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002777 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2778 issue_and_wait(dev, DownStall);
2779 for (i = 0; i < TX_RING_SIZE; i++) {
Jean Delvare0cb13532009-08-03 21:10:01 -07002780 unsigned int length;
2781
Linus Torvalds1da177e2005-04-16 15:20:36 -07002782#if DO_ZEROCOPY
Jean Delvare0cb13532009-08-03 21:10:01 -07002783 length = le32_to_cpu(vp->tx_ring[i].frag[0].length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002784#else
Jean Delvare0cb13532009-08-03 21:10:01 -07002785 length = le32_to_cpu(vp->tx_ring[i].length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002786#endif
Jean Delvare0cb13532009-08-03 21:10:01 -07002787 pr_err(" %d: @%p length %8.8x status %8.8x\n",
2788 i, &vp->tx_ring[i], length,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002789 le32_to_cpu(vp->tx_ring[i].status));
2790 }
2791 if (!stalled)
John W. Linville62afe592005-11-07 00:58:02 -08002792 iowrite16(DownUnstall, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002793 }
2794 }
2795}
2796
2797static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2798{
2799 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002800 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002801 unsigned long flags;
2802
2803 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2804 spin_lock_irqsave (&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002805 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002806 spin_unlock_irqrestore (&vp->lock, flags);
2807 }
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002808 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002809}
2810
2811/* Update statistics.
2812 Unlike with the EL3 we need not worry about interrupts changing
2813 the window setting from underneath us, but we must still guard
2814 against a race condition with a StatsUpdate interrupt updating the
2815 table. This is done by checking that the ASM (!) code generated uses
2816 atomic updates with '+='.
2817 */
John W. Linville62afe592005-11-07 00:58:02 -08002818static void update_stats(void __iomem *ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002819{
2820 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002821
Linus Torvalds1da177e2005-04-16 15:20:36 -07002822 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2823 /* Switch to the stats window, and read everything. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002824 dev->stats.tx_carrier_errors += window_read8(vp, 6, 0);
2825 dev->stats.tx_heartbeat_errors += window_read8(vp, 6, 1);
2826 dev->stats.tx_window_errors += window_read8(vp, 6, 4);
2827 dev->stats.rx_fifo_errors += window_read8(vp, 6, 5);
2828 dev->stats.tx_packets += window_read8(vp, 6, 6);
2829 dev->stats.tx_packets += (window_read8(vp, 6, 9) &
2830 0x30) << 4;
2831 /* Rx packets */ window_read8(vp, 6, 7); /* Must read to clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002832 /* Don't bother with register 9, an extension of registers 6&7.
2833 If we do use the 6&7 values the atomic update assumption above
2834 is invalid. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002835 dev->stats.rx_bytes += window_read16(vp, 6, 10);
2836 dev->stats.tx_bytes += window_read16(vp, 6, 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002837 /* Extra stats for get_ethtool_stats() */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002838 vp->xstats.tx_multiple_collisions += window_read8(vp, 6, 2);
2839 vp->xstats.tx_single_collisions += window_read8(vp, 6, 3);
2840 vp->xstats.tx_deferred += window_read8(vp, 6, 8);
2841 vp->xstats.rx_bad_ssd += window_read8(vp, 4, 12);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002842
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002843 dev->stats.collisions = vp->xstats.tx_multiple_collisions
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002844 + vp->xstats.tx_single_collisions
2845 + vp->xstats.tx_max_collisions;
2846
Linus Torvalds1da177e2005-04-16 15:20:36 -07002847 {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00002848 u8 up = window_read8(vp, 4, 13);
Paulius Zaleckas1daad052008-05-05 14:01:29 +02002849 dev->stats.rx_bytes += (up & 0x0f) << 16;
2850 dev->stats.tx_bytes += (up & 0xf0) << 12;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002851 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002852}
2853
2854static int vortex_nway_reset(struct net_device *dev)
2855{
2856 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002857
Ben Hutchingsde847272010-06-29 15:26:56 +00002858 return mii_nway_restart(&vp->mii);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002859}
2860
Linus Torvalds1da177e2005-04-16 15:20:36 -07002861static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2862{
2863 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002864
Ben Hutchingsde847272010-06-29 15:26:56 +00002865 return mii_ethtool_gset(&vp->mii, cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002866}
2867
2868static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2869{
2870 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002871
Ben Hutchingsde847272010-06-29 15:26:56 +00002872 return mii_ethtool_sset(&vp->mii, cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002873}
2874
2875static u32 vortex_get_msglevel(struct net_device *dev)
2876{
2877 return vortex_debug;
2878}
2879
2880static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2881{
2882 vortex_debug = dbg;
2883}
2884
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002885static int vortex_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002886{
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002887 switch (sset) {
2888 case ETH_SS_STATS:
2889 return VORTEX_NUM_STATS;
2890 default:
2891 return -EOPNOTSUPP;
2892 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002893}
2894
2895static void vortex_get_ethtool_stats(struct net_device *dev,
2896 struct ethtool_stats *stats, u64 *data)
2897{
2898 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08002899 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002900 unsigned long flags;
2901
2902 spin_lock_irqsave(&vp->lock, flags);
John W. Linville62afe592005-11-07 00:58:02 -08002903 update_stats(ioaddr, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002904 spin_unlock_irqrestore(&vp->lock, flags);
2905
2906 data[0] = vp->xstats.tx_deferred;
Steffen Klassert8d1d0342006-02-03 03:03:57 -08002907 data[1] = vp->xstats.tx_max_collisions;
2908 data[2] = vp->xstats.tx_multiple_collisions;
2909 data[3] = vp->xstats.tx_single_collisions;
2910 data[4] = vp->xstats.rx_bad_ssd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002911}
2912
2913
2914static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
2915{
2916 switch (stringset) {
2917 case ETH_SS_STATS:
2918 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
2919 break;
2920 default:
2921 WARN_ON(1);
2922 break;
2923 }
2924}
2925
2926static void vortex_get_drvinfo(struct net_device *dev,
2927 struct ethtool_drvinfo *info)
2928{
2929 struct vortex_private *vp = netdev_priv(dev);
2930
2931 strcpy(info->driver, DRV_NAME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002932 if (VORTEX_PCI(vp)) {
2933 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
2934 } else {
2935 if (VORTEX_EISA(vp))
Stephen Hemminger86de79b2009-02-26 10:19:24 +00002936 strcpy(info->bus_info, dev_name(vp->gendev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002937 else
2938 sprintf(info->bus_info, "EISA 0x%lx %d",
2939 dev->base_addr, dev->irq);
2940 }
2941}
2942
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002943static void vortex_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2944{
2945 struct vortex_private *vp = netdev_priv(dev);
2946
Jan Beulich3fd6c882010-09-27 11:07:00 -07002947 if (!VORTEX_PCI(vp))
2948 return;
2949
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002950 wol->supported = WAKE_MAGIC;
2951
2952 wol->wolopts = 0;
2953 if (vp->enable_wol)
2954 wol->wolopts |= WAKE_MAGIC;
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002955}
2956
2957static int vortex_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2958{
2959 struct vortex_private *vp = netdev_priv(dev);
Jan Beulich3fd6c882010-09-27 11:07:00 -07002960
2961 if (!VORTEX_PCI(vp))
2962 return -EOPNOTSUPP;
2963
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002964 if (wol->wolopts & ~WAKE_MAGIC)
2965 return -EINVAL;
2966
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002967 if (wol->wolopts & WAKE_MAGIC)
2968 vp->enable_wol = 1;
2969 else
2970 vp->enable_wol = 0;
2971 acpi_set_WOL(dev);
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002972
2973 return 0;
2974}
2975
Jeff Garzik7282d492006-09-13 14:30:00 -04002976static const struct ethtool_ops vortex_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002977 .get_drvinfo = vortex_get_drvinfo,
2978 .get_strings = vortex_get_strings,
2979 .get_msglevel = vortex_get_msglevel,
2980 .set_msglevel = vortex_set_msglevel,
2981 .get_ethtool_stats = vortex_get_ethtool_stats,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002982 .get_sset_count = vortex_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002983 .get_settings = vortex_get_settings,
2984 .set_settings = vortex_set_settings,
Steffen Klassert373a6882006-03-26 01:37:41 -08002985 .get_link = ethtool_op_get_link,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002986 .nway_reset = vortex_nway_reset,
Andrew O. Shadoura690a1f22010-07-24 16:24:17 +00002987 .get_wol = vortex_get_wol,
2988 .set_wol = vortex_set_wol,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002989};
2990
2991#ifdef CONFIG_PCI
2992/*
2993 * Must power the device up to do MDIO operations
2994 */
2995static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2996{
2997 int err;
2998 struct vortex_private *vp = netdev_priv(dev);
Al Virocc2d6592007-08-22 21:34:46 -04002999 pci_power_t state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003000
3001 if(VORTEX_PCI(vp))
3002 state = VORTEX_PCI(vp)->current_state;
3003
3004 /* The kernel core really should have pci_get_power_state() */
3005
3006 if(state != 0)
3007 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003009 if(state != 0)
3010 pci_set_power_state(VORTEX_PCI(vp), state);
3011
3012 return err;
3013}
3014#endif
3015
3016
3017/* Pre-Cyclone chips have no documented multicast filter, so the only
3018 multicast setting is to receive all multicast frames. At least
3019 the chip has a very clean way to set the mode, unlike many others. */
3020static void set_rx_mode(struct net_device *dev)
3021{
John W. Linville62afe592005-11-07 00:58:02 -08003022 struct vortex_private *vp = netdev_priv(dev);
3023 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003024 int new_mode;
3025
3026 if (dev->flags & IFF_PROMISC) {
Andy Gospodarekd5b20692006-09-11 17:39:18 -04003027 if (vortex_debug > 3)
Alexander Beregalov39738e12009-05-26 12:35:26 +00003028 pr_notice("%s: Setting promiscuous mode.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003029 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
Jiri Pirko59ce25d2010-02-17 23:12:15 +00003030 } else if (!netdev_mc_empty(dev) || dev->flags & IFF_ALLMULTI) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003031 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
3032 } else
3033 new_mode = SetRxFilter | RxStation | RxBroadcast;
3034
John W. Linville62afe592005-11-07 00:58:02 -08003035 iowrite16(new_mode, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003036}
3037
3038#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
3039/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
3040 Note that this must be done after each RxReset due to some backwards
3041 compatibility logic in the Cyclone and Tornado ASICs */
3042
3043/* The Ethernet Type used for 802.1q tagged frames */
3044#define VLAN_ETHER_TYPE 0x8100
3045
3046static void set_8021q_mode(struct net_device *dev, int enable)
3047{
3048 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049 int mac_ctrl;
3050
3051 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
3052 /* cyclone and tornado chipsets can recognize 802.1q
3053 * tagged frames and treat them correctly */
3054
3055 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
3056 if (enable)
3057 max_pkt_size += 4; /* 802.1Q VLAN tag */
3058
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003059 window_write16(vp, max_pkt_size, 3, Wn3_MaxPktSize);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003060
3061 /* set VlanEtherType to let the hardware checksumming
3062 treat tagged frames correctly */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003063 window_write16(vp, VLAN_ETHER_TYPE, 7, Wn7_VlanEtherType);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003064 } else {
3065 /* on older cards we have to enable large frames */
3066
3067 vp->large_frames = dev->mtu > 1500 || enable;
3068
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003069 mac_ctrl = window_read16(vp, 3, Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003070 if (vp->large_frames)
3071 mac_ctrl |= 0x40;
3072 else
3073 mac_ctrl &= ~0x40;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003074 window_write16(vp, mac_ctrl, 3, Wn3_MAC_Ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003076}
3077#else
3078
3079static void set_8021q_mode(struct net_device *dev, int enable)
3080{
3081}
3082
3083
3084#endif
3085
3086/* MII transceiver control section.
3087 Read and write the MII registers using software-generated serial
3088 MDIO protocol. See the MII specifications or DP83840A data sheet
3089 for details. */
3090
3091/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3092 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3093 "overclocking" issues. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003094static void mdio_delay(struct vortex_private *vp)
3095{
3096 window_read32(vp, 4, Wn4_PhysicalMgmt);
3097}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003098
3099#define MDIO_SHIFT_CLK 0x01
3100#define MDIO_DIR_WRITE 0x04
3101#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3102#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3103#define MDIO_DATA_READ 0x02
3104#define MDIO_ENB_IN 0x00
3105
3106/* Generate the preamble required for initial synchronization and
3107 a few older transceivers. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003108static void mdio_sync(struct vortex_private *vp, int bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003109{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003110 /* Establish sync by sending at least 32 logic ones. */
3111 while (-- bits >= 0) {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003112 window_write16(vp, MDIO_DATA_WRITE1, 4, Wn4_PhysicalMgmt);
3113 mdio_delay(vp);
3114 window_write16(vp, MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK,
3115 4, Wn4_PhysicalMgmt);
3116 mdio_delay(vp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003117 }
3118}
3119
3120static int mdio_read(struct net_device *dev, int phy_id, int location)
3121{
3122 int i;
John W. Linville62afe592005-11-07 00:58:02 -08003123 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003124 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3125 unsigned int retval = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003126
Ben Hutchingsde847272010-06-29 15:26:56 +00003127 spin_lock_bh(&vp->mii_lock);
3128
Linus Torvalds1da177e2005-04-16 15:20:36 -07003129 if (mii_preamble_required)
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003130 mdio_sync(vp, 32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003131
3132 /* Shift the read command bits out. */
3133 for (i = 14; i >= 0; i--) {
3134 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003135 window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
3136 mdio_delay(vp);
3137 window_write16(vp, dataval | MDIO_SHIFT_CLK,
3138 4, Wn4_PhysicalMgmt);
3139 mdio_delay(vp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003140 }
3141 /* Read the two transition, 16 data, and wire-idle bits. */
3142 for (i = 19; i > 0; i--) {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003143 window_write16(vp, MDIO_ENB_IN, 4, Wn4_PhysicalMgmt);
3144 mdio_delay(vp);
3145 retval = (retval << 1) |
3146 ((window_read16(vp, 4, Wn4_PhysicalMgmt) &
3147 MDIO_DATA_READ) ? 1 : 0);
3148 window_write16(vp, MDIO_ENB_IN | MDIO_SHIFT_CLK,
3149 4, Wn4_PhysicalMgmt);
3150 mdio_delay(vp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003151 }
Ben Hutchingsde847272010-06-29 15:26:56 +00003152
3153 spin_unlock_bh(&vp->mii_lock);
3154
Linus Torvalds1da177e2005-04-16 15:20:36 -07003155 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3156}
3157
3158static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3159{
John W. Linville62afe592005-11-07 00:58:02 -08003160 struct vortex_private *vp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003161 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003162 int i;
3163
Ben Hutchingsde847272010-06-29 15:26:56 +00003164 spin_lock_bh(&vp->mii_lock);
3165
Linus Torvalds1da177e2005-04-16 15:20:36 -07003166 if (mii_preamble_required)
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003167 mdio_sync(vp, 32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003168
3169 /* Shift the command bits out. */
3170 for (i = 31; i >= 0; i--) {
3171 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003172 window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
3173 mdio_delay(vp);
3174 window_write16(vp, dataval | MDIO_SHIFT_CLK,
3175 4, Wn4_PhysicalMgmt);
3176 mdio_delay(vp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003177 }
3178 /* Leave the interface idle. */
3179 for (i = 1; i >= 0; i--) {
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003180 window_write16(vp, MDIO_ENB_IN, 4, Wn4_PhysicalMgmt);
3181 mdio_delay(vp);
3182 window_write16(vp, MDIO_ENB_IN | MDIO_SHIFT_CLK,
3183 4, Wn4_PhysicalMgmt);
3184 mdio_delay(vp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003185 }
Ben Hutchingsde847272010-06-29 15:26:56 +00003186
3187 spin_unlock_bh(&vp->mii_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003188}
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003189
Linus Torvalds1da177e2005-04-16 15:20:36 -07003190/* ACPI: Advanced Configuration and Power Interface. */
3191/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3192static void acpi_set_WOL(struct net_device *dev)
3193{
3194 struct vortex_private *vp = netdev_priv(dev);
John W. Linville62afe592005-11-07 00:58:02 -08003195 void __iomem *ioaddr = vp->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003196
Steffen Klassertc17931c2009-01-09 03:53:17 +00003197 device_set_wakeup_enable(vp->gendev, vp->enable_wol);
3198
Linus Torvalds1da177e2005-04-16 15:20:36 -07003199 if (vp->enable_wol) {
3200 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
Ben Hutchingsa095cfc2010-06-23 13:54:31 +00003201 window_write16(vp, 2, 7, 0x0c);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003202 /* The RxFilter must accept the WOL frames. */
John W. Linville62afe592005-11-07 00:58:02 -08003203 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3204 iowrite16(RxEnable, ioaddr + EL3_CMD);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003205
Steffen Klassert1a1769f2007-10-16 14:24:09 -07003206 if (pci_enable_wake(VORTEX_PCI(vp), PCI_D3hot, 1)) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00003207 pr_info("%s: WOL not supported.\n", pci_name(VORTEX_PCI(vp)));
Steffen Klassert1a1769f2007-10-16 14:24:09 -07003208
3209 vp->enable_wol = 0;
3210 return;
3211 }
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003212
Jan Beulich3fd6c882010-09-27 11:07:00 -07003213 if (VORTEX_PCI(vp)->current_state < PCI_D3hot)
3214 return;
3215
Daniel Ritz3c8fad12005-05-05 16:15:44 -07003216 /* Change the power state to D3; RxEnable doesn't take effect. */
3217 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003218 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003219}
3220
3221
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003222static void __devexit vortex_remove_one(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003223{
3224 struct net_device *dev = pci_get_drvdata(pdev);
3225 struct vortex_private *vp;
3226
3227 if (!dev) {
Alexander Beregalov39738e12009-05-26 12:35:26 +00003228 pr_err("vortex_remove_one called for Compaq device!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003229 BUG();
3230 }
3231
3232 vp = netdev_priv(dev);
3233
John W. Linville62afe592005-11-07 00:58:02 -08003234 if (vp->cb_fn_base)
3235 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3236
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237 unregister_netdev(dev);
3238
3239 if (VORTEX_PCI(vp)) {
3240 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3241 if (vp->pm_state_valid)
3242 pci_restore_state(VORTEX_PCI(vp));
3243 pci_disable_device(VORTEX_PCI(vp));
3244 }
3245 /* Should really use issue_and_wait() here */
John W. Linville62afe592005-11-07 00:58:02 -08003246 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3247 vp->ioaddr + EL3_CMD);
3248
3249 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003250
3251 pci_free_consistent(pdev,
3252 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3253 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3254 vp->rx_ring,
3255 vp->rx_ring_dma);
3256 if (vp->must_free_region)
3257 release_region(dev->base_addr, vp->io_size);
3258 free_netdev(dev);
3259}
3260
3261
3262static struct pci_driver vortex_driver = {
3263 .name = "3c59x",
3264 .probe = vortex_init_one,
3265 .remove = __devexit_p(vortex_remove_one),
3266 .id_table = vortex_pci_tbl,
Anton Vorontsov7bfc4ab2009-09-30 20:11:11 -07003267 .driver.pm = VORTEX_PM_OPS,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003268};
3269
3270
3271static int vortex_have_pci;
3272static int vortex_have_eisa;
3273
3274
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003275static int __init vortex_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003276{
3277 int pci_rc, eisa_rc;
3278
Jeff Garzik29917622006-08-19 17:48:59 -04003279 pci_rc = pci_register_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003280 eisa_rc = vortex_eisa_init();
3281
3282 if (pci_rc == 0)
3283 vortex_have_pci = 1;
3284 if (eisa_rc > 0)
3285 vortex_have_eisa = 1;
3286
3287 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3288}
3289
3290
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003291static void __exit vortex_eisa_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003292{
3293 struct vortex_private *vp;
John W. Linville62afe592005-11-07 00:58:02 -08003294 void __iomem *ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003295
3296#ifdef CONFIG_EISA
3297 /* Take care of the EISA devices */
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003298 eisa_driver_unregister(&vortex_eisa_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003299#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003300
Linus Torvalds1da177e2005-04-16 15:20:36 -07003301 if (compaq_net_device) {
Wang Chen454d7c92008-11-12 23:37:49 -08003302 vp = netdev_priv(compaq_net_device);
John W. Linville62afe592005-11-07 00:58:02 -08003303 ioaddr = ioport_map(compaq_net_device->base_addr,
3304 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003305
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003306 unregister_netdev(compaq_net_device);
3307 iowrite16(TotalReset, ioaddr + EL3_CMD);
John W. Linville62afe592005-11-07 00:58:02 -08003308 release_region(compaq_net_device->base_addr,
3309 VORTEX_TOTAL_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003310
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003311 free_netdev(compaq_net_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003312 }
3313}
3314
3315
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003316static void __exit vortex_cleanup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003317{
3318 if (vortex_have_pci)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003319 pci_unregister_driver(&vortex_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003320 if (vortex_have_eisa)
Steffen Klasserta880c4c2006-03-26 01:37:43 -08003321 vortex_eisa_cleanup();
Linus Torvalds1da177e2005-04-16 15:20:36 -07003322}
3323
3324
3325module_init(vortex_init);
3326module_exit(vortex_cleanup);