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1da177e4 LT |
1 | /* typhoon.c: A Linux Ethernet device driver for 3Com 3CR990 family of NICs */ |
2 | /* | |
3 | Written 2002-2004 by David Dillow <dave@thedillows.org> | |
4 | Based on code written 1998-2000 by Donald Becker <becker@scyld.com> and | |
5 | Linux 2.2.x driver by David P. McLean <davidpmclean@yahoo.com>. | |
6 | ||
7 | This software may be used and distributed according to the terms of | |
8 | the GNU General Public License (GPL), incorporated herein by reference. | |
9 | Drivers based on or derived from this code fall under the GPL and must | |
10 | retain the authorship, copyright and license notice. This file is not | |
11 | a complete program and may only be used when the entire operating | |
12 | system is licensed under the GPL. | |
13 | ||
14 | This software is available on a public web site. It may enable | |
15 | cryptographic capabilities of the 3Com hardware, and may be | |
16 | exported from the United States under License Exception "TSU" | |
17 | pursuant to 15 C.F.R. Section 740.13(e). | |
18 | ||
19 | This work was funded by the National Library of Medicine under | |
20 | the Department of Energy project number 0274DD06D1 and NLM project | |
21 | number Y1-LM-2015-01. | |
22 | ||
23 | This driver is designed for the 3Com 3CR990 Family of cards with the | |
24 | 3XP Processor. It has been tested on x86 and sparc64. | |
25 | ||
26 | KNOWN ISSUES: | |
1da177e4 LT |
27 | *) Cannot DMA Rx packets to a 2 byte aligned address. Also firmware |
28 | issue. Hopefully 3Com will fix it. | |
29 | *) Waiting for a command response takes 8ms due to non-preemptable | |
30 | polling. Only significant for getting stats and creating | |
31 | SAs, but an ugly wart never the less. | |
32 | ||
33 | TODO: | |
34 | *) Doesn't do IPSEC offloading. Yet. Keep yer pants on, it's coming. | |
35 | *) Add more support for ethtool (especially for NIC stats) | |
36 | *) Allow disabling of RX checksum offloading | |
37 | *) Fix MAC changing to work while the interface is up | |
38 | (Need to put commands on the TX ring, which changes | |
39 | the locking) | |
40 | *) Add in FCS to {rx,tx}_bytes, since the hardware doesn't. See | |
41 | http://oss.sgi.com/cgi-bin/mesg.cgi?a=netdev&i=20031215152211.7003fe8e.rddunlap%40osdl.org | |
42 | */ | |
43 | ||
44 | /* Set the copy breakpoint for the copy-only-tiny-frames scheme. | |
45 | * Setting to > 1518 effectively disables this feature. | |
46 | */ | |
47 | static int rx_copybreak = 200; | |
48 | ||
49 | /* Should we use MMIO or Port IO? | |
50 | * 0: Port IO | |
51 | * 1: MMIO | |
52 | * 2: Try MMIO, fallback to Port IO | |
53 | */ | |
54 | static unsigned int use_mmio = 2; | |
55 | ||
56 | /* end user-configurable values */ | |
57 | ||
58 | /* Maximum number of multicast addresses to filter (vs. rx-all-multicast). | |
59 | */ | |
60 | static const int multicast_filter_limit = 32; | |
61 | ||
62 | /* Operational parameters that are set at compile time. */ | |
63 | ||
64 | /* Keep the ring sizes a power of two for compile efficiency. | |
65 | * The compiler will convert <unsigned>'%'<2^N> into a bit mask. | |
66 | * Making the Tx ring too large decreases the effectiveness of channel | |
67 | * bonding and packet priority. | |
68 | * There are no ill effects from too-large receive rings. | |
69 | * | |
70 | * We don't currently use the Hi Tx ring so, don't make it very big. | |
71 | * | |
72 | * Beware that if we start using the Hi Tx ring, we will need to change | |
73 | * typhoon_num_free_tx() and typhoon_tx_complete() to account for that. | |
74 | */ | |
75 | #define TXHI_ENTRIES 2 | |
76 | #define TXLO_ENTRIES 128 | |
77 | #define RX_ENTRIES 32 | |
78 | #define COMMAND_ENTRIES 16 | |
79 | #define RESPONSE_ENTRIES 32 | |
80 | ||
81 | #define COMMAND_RING_SIZE (COMMAND_ENTRIES * sizeof(struct cmd_desc)) | |
82 | #define RESPONSE_RING_SIZE (RESPONSE_ENTRIES * sizeof(struct resp_desc)) | |
83 | ||
84 | /* The 3XP will preload and remove 64 entries from the free buffer | |
6aa20a22 | 85 | * list, and we need one entry to keep the ring from wrapping, so |
1da177e4 LT |
86 | * to keep this a power of two, we use 128 entries. |
87 | */ | |
88 | #define RXFREE_ENTRIES 128 | |
89 | #define RXENT_ENTRIES (RXFREE_ENTRIES - 1) | |
90 | ||
91 | /* Operational parameters that usually are not changed. */ | |
92 | ||
93 | /* Time in jiffies before concluding the transmitter is hung. */ | |
94 | #define TX_TIMEOUT (2*HZ) | |
95 | ||
96 | #define PKT_BUF_SZ 1536 | |
a8c9a53c | 97 | #define FIRMWARE_NAME "3com/typhoon.bin" |
1da177e4 | 98 | |
0bc88e4a JP |
99 | #define pr_fmt(fmt) KBUILD_MODNAME " " fmt |
100 | ||
1da177e4 LT |
101 | #include <linux/module.h> |
102 | #include <linux/kernel.h> | |
d43c36dc | 103 | #include <linux/sched.h> |
1da177e4 LT |
104 | #include <linux/string.h> |
105 | #include <linux/timer.h> | |
106 | #include <linux/errno.h> | |
107 | #include <linux/ioport.h> | |
1da177e4 LT |
108 | #include <linux/interrupt.h> |
109 | #include <linux/pci.h> | |
110 | #include <linux/netdevice.h> | |
111 | #include <linux/etherdevice.h> | |
112 | #include <linux/skbuff.h> | |
d7fe0f24 | 113 | #include <linux/mm.h> |
1da177e4 LT |
114 | #include <linux/init.h> |
115 | #include <linux/delay.h> | |
116 | #include <linux/ethtool.h> | |
117 | #include <linux/if_vlan.h> | |
118 | #include <linux/crc32.h> | |
119 | #include <linux/bitops.h> | |
120 | #include <asm/processor.h> | |
121 | #include <asm/io.h> | |
7c0f6ba6 | 122 | #include <linux/uaccess.h> |
1da177e4 | 123 | #include <linux/in6.h> |
1da177e4 | 124 | #include <linux/dma-mapping.h> |
b775a750 | 125 | #include <linux/firmware.h> |
1da177e4 LT |
126 | |
127 | #include "typhoon.h" | |
1da177e4 | 128 | |
1da177e4 | 129 | MODULE_AUTHOR("David Dillow <dave@thedillows.org>"); |
2505c548 | 130 | MODULE_VERSION("1.0"); |
1da177e4 | 131 | MODULE_LICENSE("GPL"); |
b775a750 | 132 | MODULE_FIRMWARE(FIRMWARE_NAME); |
1da177e4 LT |
133 | MODULE_DESCRIPTION("3Com Typhoon Family (3C990, 3CR990, and variants)"); |
134 | MODULE_PARM_DESC(rx_copybreak, "Packets smaller than this are copied and " | |
135 | "the buffer given back to the NIC. Default " | |
136 | "is 200."); | |
137 | MODULE_PARM_DESC(use_mmio, "Use MMIO (1) or PIO(0) to access the NIC. " | |
138 | "Default is to try MMIO and fallback to PIO."); | |
139 | module_param(rx_copybreak, int, 0); | |
140 | module_param(use_mmio, int, 0); | |
141 | ||
142 | #if defined(NETIF_F_TSO) && MAX_SKB_FRAGS > 32 | |
143 | #warning Typhoon only supports 32 entries in its SG list for TSO, disabling TSO | |
144 | #undef NETIF_F_TSO | |
145 | #endif | |
146 | ||
147 | #if TXLO_ENTRIES <= (2 * MAX_SKB_FRAGS) | |
148 | #error TX ring too small! | |
149 | #endif | |
150 | ||
151 | struct typhoon_card_info { | |
0bc88e4a JP |
152 | const char *name; |
153 | const int capabilities; | |
1da177e4 LT |
154 | }; |
155 | ||
156 | #define TYPHOON_CRYPTO_NONE 0x00 | |
157 | #define TYPHOON_CRYPTO_DES 0x01 | |
158 | #define TYPHOON_CRYPTO_3DES 0x02 | |
159 | #define TYPHOON_CRYPTO_VARIABLE 0x04 | |
160 | #define TYPHOON_FIBER 0x08 | |
161 | #define TYPHOON_WAKEUP_NEEDS_RESET 0x10 | |
162 | ||
163 | enum typhoon_cards { | |
164 | TYPHOON_TX = 0, TYPHOON_TX95, TYPHOON_TX97, TYPHOON_SVR, | |
165 | TYPHOON_SVR95, TYPHOON_SVR97, TYPHOON_TXM, TYPHOON_BSVR, | |
166 | TYPHOON_FX95, TYPHOON_FX97, TYPHOON_FX95SVR, TYPHOON_FX97SVR, | |
167 | TYPHOON_FXM, | |
168 | }; | |
169 | ||
170 | /* directly indexed by enum typhoon_cards, above */ | |
21cf689b | 171 | static struct typhoon_card_info typhoon_card_info[] = { |
1da177e4 LT |
172 | { "3Com Typhoon (3C990-TX)", |
173 | TYPHOON_CRYPTO_NONE}, | |
174 | { "3Com Typhoon (3CR990-TX-95)", | |
175 | TYPHOON_CRYPTO_DES}, | |
176 | { "3Com Typhoon (3CR990-TX-97)", | |
177 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES}, | |
178 | { "3Com Typhoon (3C990SVR)", | |
179 | TYPHOON_CRYPTO_NONE}, | |
180 | { "3Com Typhoon (3CR990SVR95)", | |
181 | TYPHOON_CRYPTO_DES}, | |
182 | { "3Com Typhoon (3CR990SVR97)", | |
183 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES}, | |
184 | { "3Com Typhoon2 (3C990B-TX-M)", | |
185 | TYPHOON_CRYPTO_VARIABLE}, | |
186 | { "3Com Typhoon2 (3C990BSVR)", | |
187 | TYPHOON_CRYPTO_VARIABLE}, | |
188 | { "3Com Typhoon (3CR990-FX-95)", | |
189 | TYPHOON_CRYPTO_DES | TYPHOON_FIBER}, | |
190 | { "3Com Typhoon (3CR990-FX-97)", | |
191 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES | TYPHOON_FIBER}, | |
192 | { "3Com Typhoon (3CR990-FX-95 Server)", | |
193 | TYPHOON_CRYPTO_DES | TYPHOON_FIBER}, | |
194 | { "3Com Typhoon (3CR990-FX-97 Server)", | |
195 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES | TYPHOON_FIBER}, | |
196 | { "3Com Typhoon2 (3C990B-FX-97)", | |
197 | TYPHOON_CRYPTO_VARIABLE | TYPHOON_FIBER}, | |
198 | }; | |
199 | ||
200 | /* Notes on the new subsystem numbering scheme: | |
7f927fcc | 201 | * bits 0-1 indicate crypto capabilities: (0) variable, (1) DES, or (2) 3DES |
1da177e4 LT |
202 | * bit 4 indicates if this card has secured firmware (we don't support it) |
203 | * bit 8 indicates if this is a (0) copper or (1) fiber card | |
204 | * bits 12-16 indicate card type: (0) client and (1) server | |
205 | */ | |
9baa3c34 | 206 | static const struct pci_device_id typhoon_pci_tbl[] = { |
1da177e4 LT |
207 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990, |
208 | PCI_ANY_ID, PCI_ANY_ID, 0, 0,TYPHOON_TX }, | |
209 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_TX_95, | |
210 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_TX95 }, | |
211 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_TX_97, | |
212 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_TX97 }, | |
213 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990B, | |
214 | PCI_ANY_ID, 0x1000, 0, 0, TYPHOON_TXM }, | |
215 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990B, | |
216 | PCI_ANY_ID, 0x1102, 0, 0, TYPHOON_FXM }, | |
217 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990B, | |
218 | PCI_ANY_ID, 0x2000, 0, 0, TYPHOON_BSVR }, | |
219 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, | |
220 | PCI_ANY_ID, 0x1101, 0, 0, TYPHOON_FX95 }, | |
221 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, | |
222 | PCI_ANY_ID, 0x1102, 0, 0, TYPHOON_FX97 }, | |
223 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, | |
224 | PCI_ANY_ID, 0x2101, 0, 0, TYPHOON_FX95SVR }, | |
225 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, | |
226 | PCI_ANY_ID, 0x2102, 0, 0, TYPHOON_FX97SVR }, | |
227 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990SVR95, | |
228 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_SVR95 }, | |
229 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990SVR97, | |
230 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_SVR97 }, | |
231 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990SVR, | |
232 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_SVR }, | |
233 | { 0, } | |
234 | }; | |
235 | MODULE_DEVICE_TABLE(pci, typhoon_pci_tbl); | |
236 | ||
237 | /* Define the shared memory area | |
238 | * Align everything the 3XP will normally be using. | |
239 | * We'll need to move/align txHi if we start using that ring. | |
240 | */ | |
241 | #define __3xp_aligned ____cacheline_aligned | |
242 | struct typhoon_shared { | |
243 | struct typhoon_interface iface; | |
244 | struct typhoon_indexes indexes __3xp_aligned; | |
245 | struct tx_desc txLo[TXLO_ENTRIES] __3xp_aligned; | |
246 | struct rx_desc rxLo[RX_ENTRIES] __3xp_aligned; | |
247 | struct rx_desc rxHi[RX_ENTRIES] __3xp_aligned; | |
248 | struct cmd_desc cmd[COMMAND_ENTRIES] __3xp_aligned; | |
249 | struct resp_desc resp[RESPONSE_ENTRIES] __3xp_aligned; | |
250 | struct rx_free rxBuff[RXFREE_ENTRIES] __3xp_aligned; | |
251 | u32 zeroWord; | |
252 | struct tx_desc txHi[TXHI_ENTRIES]; | |
ba2d3587 | 253 | } __packed; |
1da177e4 LT |
254 | |
255 | struct rxbuff_ent { | |
256 | struct sk_buff *skb; | |
257 | dma_addr_t dma_addr; | |
258 | }; | |
259 | ||
260 | struct typhoon { | |
261 | /* Tx cache line section */ | |
6aa20a22 | 262 | struct transmit_ring txLoRing ____cacheline_aligned; |
1da177e4 LT |
263 | struct pci_dev * tx_pdev; |
264 | void __iomem *tx_ioaddr; | |
265 | u32 txlo_dma_addr; | |
266 | ||
267 | /* Irq/Rx cache line section */ | |
268 | void __iomem *ioaddr ____cacheline_aligned; | |
269 | struct typhoon_indexes *indexes; | |
270 | u8 awaiting_resp; | |
271 | u8 duplex; | |
272 | u8 speed; | |
273 | u8 card_state; | |
274 | struct basic_ring rxLoRing; | |
275 | struct pci_dev * pdev; | |
276 | struct net_device * dev; | |
bea3348e | 277 | struct napi_struct napi; |
1da177e4 LT |
278 | struct basic_ring rxHiRing; |
279 | struct basic_ring rxBuffRing; | |
280 | struct rxbuff_ent rxbuffers[RXENT_ENTRIES]; | |
281 | ||
282 | /* general section */ | |
283 | spinlock_t command_lock ____cacheline_aligned; | |
284 | struct basic_ring cmdRing; | |
285 | struct basic_ring respRing; | |
286 | struct net_device_stats stats; | |
287 | struct net_device_stats stats_saved; | |
1da177e4 LT |
288 | struct typhoon_shared * shared; |
289 | dma_addr_t shared_dma; | |
03a710ff AV |
290 | __le16 xcvr_select; |
291 | __le16 wol_events; | |
292 | __le32 offload; | |
1da177e4 LT |
293 | |
294 | /* unused stuff (future use) */ | |
295 | int capabilities; | |
296 | struct transmit_ring txHiRing; | |
297 | }; | |
298 | ||
299 | enum completion_wait_values { | |
300 | NoWait = 0, WaitNoSleep, WaitSleep, | |
301 | }; | |
302 | ||
303 | /* These are the values for the typhoon.card_state variable. | |
304 | * These determine where the statistics will come from in get_stats(). | |
305 | * The sleep image does not support the statistics we need. | |
306 | */ | |
307 | enum state_values { | |
308 | Sleeping = 0, Running, | |
309 | }; | |
310 | ||
311 | /* PCI writes are not guaranteed to be posted in order, but outstanding writes | |
312 | * cannot pass a read, so this forces current writes to post. | |
313 | */ | |
314 | #define typhoon_post_pci_writes(x) \ | |
315 | do { if(likely(use_mmio)) ioread32(x+TYPHOON_REG_HEARTBEAT); } while(0) | |
316 | ||
317 | /* We'll wait up to six seconds for a reset, and half a second normally. | |
318 | */ | |
319 | #define TYPHOON_UDELAY 50 | |
320 | #define TYPHOON_RESET_TIMEOUT_SLEEP (6 * HZ) | |
321 | #define TYPHOON_RESET_TIMEOUT_NOSLEEP ((6 * 1000000) / TYPHOON_UDELAY) | |
322 | #define TYPHOON_WAIT_TIMEOUT ((1000000 / 2) / TYPHOON_UDELAY) | |
323 | ||
1da177e4 | 324 | #if defined(NETIF_F_TSO) |
7967168c | 325 | #define skb_tso_size(x) (skb_shinfo(x)->gso_size) |
1da177e4 LT |
326 | #define TSO_NUM_DESCRIPTORS 2 |
327 | #define TSO_OFFLOAD_ON TYPHOON_OFFLOAD_TCP_SEGMENT | |
328 | #else | |
329 | #define NETIF_F_TSO 0 | |
330 | #define skb_tso_size(x) 0 | |
331 | #define TSO_NUM_DESCRIPTORS 0 | |
332 | #define TSO_OFFLOAD_ON 0 | |
333 | #endif | |
334 | ||
335 | static inline void | |
336 | typhoon_inc_index(u32 *index, const int count, const int num_entries) | |
337 | { | |
338 | /* Increment a ring index -- we can use this for all rings execept | |
339 | * the Rx rings, as they use different size descriptors | |
340 | * otherwise, everything is the same size as a cmd_desc | |
341 | */ | |
342 | *index += count * sizeof(struct cmd_desc); | |
343 | *index %= num_entries * sizeof(struct cmd_desc); | |
344 | } | |
345 | ||
346 | static inline void | |
347 | typhoon_inc_cmd_index(u32 *index, const int count) | |
348 | { | |
349 | typhoon_inc_index(index, count, COMMAND_ENTRIES); | |
350 | } | |
351 | ||
352 | static inline void | |
353 | typhoon_inc_resp_index(u32 *index, const int count) | |
354 | { | |
355 | typhoon_inc_index(index, count, RESPONSE_ENTRIES); | |
356 | } | |
357 | ||
358 | static inline void | |
359 | typhoon_inc_rxfree_index(u32 *index, const int count) | |
360 | { | |
361 | typhoon_inc_index(index, count, RXFREE_ENTRIES); | |
362 | } | |
363 | ||
364 | static inline void | |
365 | typhoon_inc_tx_index(u32 *index, const int count) | |
366 | { | |
4907cb7b | 367 | /* if we start using the Hi Tx ring, this needs updating */ |
1da177e4 LT |
368 | typhoon_inc_index(index, count, TXLO_ENTRIES); |
369 | } | |
370 | ||
371 | static inline void | |
372 | typhoon_inc_rx_index(u32 *index, const int count) | |
373 | { | |
374 | /* sizeof(struct rx_desc) != sizeof(struct cmd_desc) */ | |
375 | *index += count * sizeof(struct rx_desc); | |
376 | *index %= RX_ENTRIES * sizeof(struct rx_desc); | |
377 | } | |
378 | ||
379 | static int | |
380 | typhoon_reset(void __iomem *ioaddr, int wait_type) | |
381 | { | |
382 | int i, err = 0; | |
383 | int timeout; | |
384 | ||
385 | if(wait_type == WaitNoSleep) | |
386 | timeout = TYPHOON_RESET_TIMEOUT_NOSLEEP; | |
387 | else | |
388 | timeout = TYPHOON_RESET_TIMEOUT_SLEEP; | |
389 | ||
390 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); | |
391 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); | |
392 | ||
393 | iowrite32(TYPHOON_RESET_ALL, ioaddr + TYPHOON_REG_SOFT_RESET); | |
394 | typhoon_post_pci_writes(ioaddr); | |
395 | udelay(1); | |
396 | iowrite32(TYPHOON_RESET_NONE, ioaddr + TYPHOON_REG_SOFT_RESET); | |
397 | ||
398 | if(wait_type != NoWait) { | |
399 | for(i = 0; i < timeout; i++) { | |
400 | if(ioread32(ioaddr + TYPHOON_REG_STATUS) == | |
401 | TYPHOON_STATUS_WAITING_FOR_HOST) | |
402 | goto out; | |
403 | ||
3173c890 NA |
404 | if(wait_type == WaitSleep) |
405 | schedule_timeout_uninterruptible(1); | |
406 | else | |
1da177e4 LT |
407 | udelay(TYPHOON_UDELAY); |
408 | } | |
409 | ||
410 | err = -ETIMEDOUT; | |
411 | } | |
412 | ||
413 | out: | |
414 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); | |
415 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); | |
416 | ||
417 | /* The 3XP seems to need a little extra time to complete the load | |
418 | * of the sleep image before we can reliably boot it. Failure to | |
419 | * do this occasionally results in a hung adapter after boot in | |
420 | * typhoon_init_one() while trying to read the MAC address or | |
421 | * putting the card to sleep. 3Com's driver waits 5ms, but | |
422 | * that seems to be overkill. However, if we can sleep, we might | |
423 | * as well give it that much time. Otherwise, we'll give it 500us, | |
424 | * which should be enough (I've see it work well at 100us, but still | |
425 | * saw occasional problems.) | |
426 | */ | |
427 | if(wait_type == WaitSleep) | |
428 | msleep(5); | |
429 | else | |
430 | udelay(500); | |
431 | return err; | |
432 | } | |
433 | ||
434 | static int | |
435 | typhoon_wait_status(void __iomem *ioaddr, u32 wait_value) | |
436 | { | |
437 | int i, err = 0; | |
438 | ||
439 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT; i++) { | |
440 | if(ioread32(ioaddr + TYPHOON_REG_STATUS) == wait_value) | |
441 | goto out; | |
442 | udelay(TYPHOON_UDELAY); | |
443 | } | |
444 | ||
445 | err = -ETIMEDOUT; | |
446 | ||
447 | out: | |
448 | return err; | |
449 | } | |
450 | ||
451 | static inline void | |
452 | typhoon_media_status(struct net_device *dev, struct resp_desc *resp) | |
453 | { | |
454 | if(resp->parm1 & TYPHOON_MEDIA_STAT_NO_LINK) | |
455 | netif_carrier_off(dev); | |
456 | else | |
457 | netif_carrier_on(dev); | |
458 | } | |
459 | ||
460 | static inline void | |
461 | typhoon_hello(struct typhoon *tp) | |
462 | { | |
463 | struct basic_ring *ring = &tp->cmdRing; | |
464 | struct cmd_desc *cmd; | |
465 | ||
466 | /* We only get a hello request if we've not sent anything to the | |
467 | * card in a long while. If the lock is held, then we're in the | |
468 | * process of issuing a command, so we don't need to respond. | |
469 | */ | |
470 | if(spin_trylock(&tp->command_lock)) { | |
471 | cmd = (struct cmd_desc *)(ring->ringBase + ring->lastWrite); | |
472 | typhoon_inc_cmd_index(&ring->lastWrite, 1); | |
473 | ||
474 | INIT_COMMAND_NO_RESPONSE(cmd, TYPHOON_CMD_HELLO_RESP); | |
5fe88eae | 475 | wmb(); |
1da177e4 LT |
476 | iowrite32(ring->lastWrite, tp->ioaddr + TYPHOON_REG_CMD_READY); |
477 | spin_unlock(&tp->command_lock); | |
478 | } | |
479 | } | |
480 | ||
481 | static int | |
482 | typhoon_process_response(struct typhoon *tp, int resp_size, | |
483 | struct resp_desc *resp_save) | |
484 | { | |
485 | struct typhoon_indexes *indexes = tp->indexes; | |
486 | struct resp_desc *resp; | |
487 | u8 *base = tp->respRing.ringBase; | |
488 | int count, len, wrap_len; | |
489 | u32 cleared; | |
490 | u32 ready; | |
491 | ||
492 | cleared = le32_to_cpu(indexes->respCleared); | |
493 | ready = le32_to_cpu(indexes->respReady); | |
494 | while(cleared != ready) { | |
495 | resp = (struct resp_desc *)(base + cleared); | |
496 | count = resp->numDesc + 1; | |
497 | if(resp_save && resp->seqNo) { | |
498 | if(count > resp_size) { | |
499 | resp_save->flags = TYPHOON_RESP_ERROR; | |
500 | goto cleanup; | |
501 | } | |
502 | ||
503 | wrap_len = 0; | |
504 | len = count * sizeof(*resp); | |
505 | if(unlikely(cleared + len > RESPONSE_RING_SIZE)) { | |
506 | wrap_len = cleared + len - RESPONSE_RING_SIZE; | |
507 | len = RESPONSE_RING_SIZE - cleared; | |
508 | } | |
509 | ||
510 | memcpy(resp_save, resp, len); | |
511 | if(unlikely(wrap_len)) { | |
512 | resp_save += len / sizeof(*resp); | |
513 | memcpy(resp_save, base, wrap_len); | |
514 | } | |
515 | ||
516 | resp_save = NULL; | |
517 | } else if(resp->cmd == TYPHOON_CMD_READ_MEDIA_STATUS) { | |
518 | typhoon_media_status(tp->dev, resp); | |
519 | } else if(resp->cmd == TYPHOON_CMD_HELLO_RESP) { | |
520 | typhoon_hello(tp); | |
521 | } else { | |
0bc88e4a JP |
522 | netdev_err(tp->dev, |
523 | "dumping unexpected response 0x%04x:%d:0x%02x:0x%04x:%08x:%08x\n", | |
524 | le16_to_cpu(resp->cmd), | |
525 | resp->numDesc, resp->flags, | |
526 | le16_to_cpu(resp->parm1), | |
527 | le32_to_cpu(resp->parm2), | |
528 | le32_to_cpu(resp->parm3)); | |
1da177e4 LT |
529 | } |
530 | ||
531 | cleanup: | |
532 | typhoon_inc_resp_index(&cleared, count); | |
533 | } | |
534 | ||
535 | indexes->respCleared = cpu_to_le32(cleared); | |
536 | wmb(); | |
807540ba | 537 | return resp_save == NULL; |
1da177e4 LT |
538 | } |
539 | ||
540 | static inline int | |
541 | typhoon_num_free(int lastWrite, int lastRead, int ringSize) | |
542 | { | |
543 | /* this works for all descriptors but rx_desc, as they are a | |
544 | * different size than the cmd_desc -- everyone else is the same | |
545 | */ | |
546 | lastWrite /= sizeof(struct cmd_desc); | |
547 | lastRead /= sizeof(struct cmd_desc); | |
548 | return (ringSize + lastRead - lastWrite - 1) % ringSize; | |
549 | } | |
550 | ||
551 | static inline int | |
552 | typhoon_num_free_cmd(struct typhoon *tp) | |
553 | { | |
554 | int lastWrite = tp->cmdRing.lastWrite; | |
555 | int cmdCleared = le32_to_cpu(tp->indexes->cmdCleared); | |
556 | ||
557 | return typhoon_num_free(lastWrite, cmdCleared, COMMAND_ENTRIES); | |
558 | } | |
559 | ||
560 | static inline int | |
561 | typhoon_num_free_resp(struct typhoon *tp) | |
562 | { | |
563 | int respReady = le32_to_cpu(tp->indexes->respReady); | |
564 | int respCleared = le32_to_cpu(tp->indexes->respCleared); | |
565 | ||
566 | return typhoon_num_free(respReady, respCleared, RESPONSE_ENTRIES); | |
567 | } | |
568 | ||
569 | static inline int | |
570 | typhoon_num_free_tx(struct transmit_ring *ring) | |
571 | { | |
572 | /* if we start using the Hi Tx ring, this needs updating */ | |
573 | return typhoon_num_free(ring->lastWrite, ring->lastRead, TXLO_ENTRIES); | |
574 | } | |
575 | ||
576 | static int | |
577 | typhoon_issue_command(struct typhoon *tp, int num_cmd, struct cmd_desc *cmd, | |
578 | int num_resp, struct resp_desc *resp) | |
579 | { | |
580 | struct typhoon_indexes *indexes = tp->indexes; | |
581 | struct basic_ring *ring = &tp->cmdRing; | |
582 | struct resp_desc local_resp; | |
583 | int i, err = 0; | |
584 | int got_resp; | |
585 | int freeCmd, freeResp; | |
586 | int len, wrap_len; | |
587 | ||
588 | spin_lock(&tp->command_lock); | |
589 | ||
590 | freeCmd = typhoon_num_free_cmd(tp); | |
591 | freeResp = typhoon_num_free_resp(tp); | |
592 | ||
593 | if(freeCmd < num_cmd || freeResp < num_resp) { | |
0bc88e4a JP |
594 | netdev_err(tp->dev, "no descs for cmd, had (needed) %d (%d) cmd, %d (%d) resp\n", |
595 | freeCmd, num_cmd, freeResp, num_resp); | |
1da177e4 LT |
596 | err = -ENOMEM; |
597 | goto out; | |
598 | } | |
599 | ||
600 | if(cmd->flags & TYPHOON_CMD_RESPOND) { | |
601 | /* If we're expecting a response, but the caller hasn't given | |
602 | * us a place to put it, we'll provide one. | |
603 | */ | |
604 | tp->awaiting_resp = 1; | |
605 | if(resp == NULL) { | |
606 | resp = &local_resp; | |
607 | num_resp = 1; | |
608 | } | |
609 | } | |
610 | ||
611 | wrap_len = 0; | |
612 | len = num_cmd * sizeof(*cmd); | |
613 | if(unlikely(ring->lastWrite + len > COMMAND_RING_SIZE)) { | |
614 | wrap_len = ring->lastWrite + len - COMMAND_RING_SIZE; | |
615 | len = COMMAND_RING_SIZE - ring->lastWrite; | |
616 | } | |
617 | ||
618 | memcpy(ring->ringBase + ring->lastWrite, cmd, len); | |
619 | if(unlikely(wrap_len)) { | |
620 | struct cmd_desc *wrap_ptr = cmd; | |
621 | wrap_ptr += len / sizeof(*cmd); | |
622 | memcpy(ring->ringBase, wrap_ptr, wrap_len); | |
623 | } | |
624 | ||
625 | typhoon_inc_cmd_index(&ring->lastWrite, num_cmd); | |
626 | ||
59c51591 | 627 | /* "I feel a presence... another warrior is on the mesa." |
1da177e4 LT |
628 | */ |
629 | wmb(); | |
630 | iowrite32(ring->lastWrite, tp->ioaddr + TYPHOON_REG_CMD_READY); | |
631 | typhoon_post_pci_writes(tp->ioaddr); | |
632 | ||
633 | if((cmd->flags & TYPHOON_CMD_RESPOND) == 0) | |
634 | goto out; | |
635 | ||
636 | /* Ugh. We'll be here about 8ms, spinning our thumbs, unable to | |
637 | * preempt or do anything other than take interrupts. So, don't | |
638 | * wait for a response unless you have to. | |
639 | * | |
640 | * I've thought about trying to sleep here, but we're called | |
641 | * from many contexts that don't allow that. Also, given the way | |
642 | * 3Com has implemented irq coalescing, we would likely timeout -- | |
643 | * this has been observed in real life! | |
644 | * | |
645 | * The big killer is we have to wait to get stats from the card, | |
646 | * though we could go to a periodic refresh of those if we don't | |
647 | * mind them getting somewhat stale. The rest of the waiting | |
648 | * commands occur during open/close/suspend/resume, so they aren't | |
649 | * time critical. Creating SAs in the future will also have to | |
650 | * wait here. | |
651 | */ | |
652 | got_resp = 0; | |
653 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT && !got_resp; i++) { | |
654 | if(indexes->respCleared != indexes->respReady) | |
655 | got_resp = typhoon_process_response(tp, num_resp, | |
656 | resp); | |
657 | udelay(TYPHOON_UDELAY); | |
658 | } | |
659 | ||
660 | if(!got_resp) { | |
661 | err = -ETIMEDOUT; | |
662 | goto out; | |
663 | } | |
664 | ||
665 | /* Collect the error response even if we don't care about the | |
666 | * rest of the response | |
667 | */ | |
668 | if(resp->flags & TYPHOON_RESP_ERROR) | |
669 | err = -EIO; | |
670 | ||
671 | out: | |
672 | if(tp->awaiting_resp) { | |
673 | tp->awaiting_resp = 0; | |
674 | smp_wmb(); | |
675 | ||
676 | /* Ugh. If a response was added to the ring between | |
677 | * the call to typhoon_process_response() and the clearing | |
678 | * of tp->awaiting_resp, we could have missed the interrupt | |
679 | * and it could hang in the ring an indeterminate amount of | |
680 | * time. So, check for it, and interrupt ourselves if this | |
681 | * is the case. | |
682 | */ | |
683 | if(indexes->respCleared != indexes->respReady) | |
684 | iowrite32(1, tp->ioaddr + TYPHOON_REG_SELF_INTERRUPT); | |
685 | } | |
686 | ||
687 | spin_unlock(&tp->command_lock); | |
688 | return err; | |
689 | } | |
690 | ||
1da177e4 LT |
691 | static inline void |
692 | typhoon_tso_fill(struct sk_buff *skb, struct transmit_ring *txRing, | |
693 | u32 ring_dma) | |
694 | { | |
695 | struct tcpopt_desc *tcpd; | |
696 | u32 tcpd_offset = ring_dma; | |
697 | ||
698 | tcpd = (struct tcpopt_desc *) (txRing->ringBase + txRing->lastWrite); | |
699 | tcpd_offset += txRing->lastWrite; | |
700 | tcpd_offset += offsetof(struct tcpopt_desc, bytesTx); | |
701 | typhoon_inc_tx_index(&txRing->lastWrite, 1); | |
702 | ||
703 | tcpd->flags = TYPHOON_OPT_DESC | TYPHOON_OPT_TCP_SEG; | |
704 | tcpd->numDesc = 1; | |
705 | tcpd->mss_flags = cpu_to_le16(skb_tso_size(skb)); | |
706 | tcpd->mss_flags |= TYPHOON_TSO_FIRST | TYPHOON_TSO_LAST; | |
707 | tcpd->respAddrLo = cpu_to_le32(tcpd_offset); | |
708 | tcpd->bytesTx = cpu_to_le32(skb->len); | |
709 | tcpd->status = 0; | |
710 | } | |
711 | ||
61357325 | 712 | static netdev_tx_t |
1da177e4 LT |
713 | typhoon_start_tx(struct sk_buff *skb, struct net_device *dev) |
714 | { | |
715 | struct typhoon *tp = netdev_priv(dev); | |
716 | struct transmit_ring *txRing; | |
717 | struct tx_desc *txd, *first_txd; | |
718 | dma_addr_t skb_dma; | |
719 | int numDesc; | |
720 | ||
721 | /* we have two rings to choose from, but we only use txLo for now | |
722 | * If we start using the Hi ring as well, we'll need to update | |
723 | * typhoon_stop_runtime(), typhoon_interrupt(), typhoon_num_free_tx(), | |
7f927fcc | 724 | * and TXHI_ENTRIES to match, as well as update the TSO code below |
1da177e4 LT |
725 | * to get the right DMA address |
726 | */ | |
727 | txRing = &tp->txLoRing; | |
728 | ||
729 | /* We need one descriptor for each fragment of the sk_buff, plus the | |
730 | * one for the ->data area of it. | |
731 | * | |
732 | * The docs say a maximum of 16 fragment descriptors per TCP option | |
733 | * descriptor, then make a new packet descriptor and option descriptor | |
734 | * for the next 16 fragments. The engineers say just an option | |
735 | * descriptor is needed. I've tested up to 26 fragments with a single | |
736 | * packet descriptor/option descriptor combo, so I use that for now. | |
737 | * | |
738 | * If problems develop with TSO, check this first. | |
739 | */ | |
740 | numDesc = skb_shinfo(skb)->nr_frags + 1; | |
89114afd | 741 | if (skb_is_gso(skb)) |
1da177e4 LT |
742 | numDesc++; |
743 | ||
744 | /* When checking for free space in the ring, we need to also | |
745 | * account for the initial Tx descriptor, and we always must leave | |
746 | * at least one descriptor unused in the ring so that it doesn't | |
747 | * wrap and look empty. | |
748 | * | |
749 | * The only time we should loop here is when we hit the race | |
750 | * between marking the queue awake and updating the cleared index. | |
751 | * Just loop and it will appear. This comes from the acenic driver. | |
752 | */ | |
753 | while(unlikely(typhoon_num_free_tx(txRing) < (numDesc + 2))) | |
754 | smp_rmb(); | |
755 | ||
756 | first_txd = (struct tx_desc *) (txRing->ringBase + txRing->lastWrite); | |
757 | typhoon_inc_tx_index(&txRing->lastWrite, 1); | |
758 | ||
759 | first_txd->flags = TYPHOON_TX_DESC | TYPHOON_DESC_VALID; | |
760 | first_txd->numDesc = 0; | |
761 | first_txd->len = 0; | |
71f1bb1a | 762 | first_txd->tx_addr = (u64)((unsigned long) skb); |
1da177e4 LT |
763 | first_txd->processFlags = 0; |
764 | ||
84fa7933 | 765 | if(skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 LT |
766 | /* The 3XP will figure out if this is UDP/TCP */ |
767 | first_txd->processFlags |= TYPHOON_TX_PF_TCP_CHKSUM; | |
768 | first_txd->processFlags |= TYPHOON_TX_PF_UDP_CHKSUM; | |
769 | first_txd->processFlags |= TYPHOON_TX_PF_IP_CHKSUM; | |
770 | } | |
771 | ||
df8a39de | 772 | if (skb_vlan_tag_present(skb)) { |
1da177e4 LT |
773 | first_txd->processFlags |= |
774 | TYPHOON_TX_PF_INSERT_VLAN | TYPHOON_TX_PF_VLAN_PRIORITY; | |
775 | first_txd->processFlags |= | |
df8a39de | 776 | cpu_to_le32(htons(skb_vlan_tag_get(skb)) << |
1da177e4 LT |
777 | TYPHOON_TX_PF_VLAN_TAG_SHIFT); |
778 | } | |
779 | ||
89114afd | 780 | if (skb_is_gso(skb)) { |
1da177e4 LT |
781 | first_txd->processFlags |= TYPHOON_TX_PF_TCP_SEGMENT; |
782 | first_txd->numDesc++; | |
783 | ||
784 | typhoon_tso_fill(skb, txRing, tp->txlo_dma_addr); | |
785 | } | |
786 | ||
787 | txd = (struct tx_desc *) (txRing->ringBase + txRing->lastWrite); | |
788 | typhoon_inc_tx_index(&txRing->lastWrite, 1); | |
789 | ||
790 | /* No need to worry about padding packet -- the firmware pads | |
791 | * it with zeros to ETH_ZLEN for us. | |
792 | */ | |
793 | if(skb_shinfo(skb)->nr_frags == 0) { | |
794 | skb_dma = pci_map_single(tp->tx_pdev, skb->data, skb->len, | |
795 | PCI_DMA_TODEVICE); | |
796 | txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID; | |
797 | txd->len = cpu_to_le16(skb->len); | |
71f1bb1a AV |
798 | txd->frag.addr = cpu_to_le32(skb_dma); |
799 | txd->frag.addrHi = 0; | |
1da177e4 LT |
800 | first_txd->numDesc++; |
801 | } else { | |
802 | int i, len; | |
803 | ||
804 | len = skb_headlen(skb); | |
805 | skb_dma = pci_map_single(tp->tx_pdev, skb->data, len, | |
806 | PCI_DMA_TODEVICE); | |
807 | txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID; | |
808 | txd->len = cpu_to_le16(len); | |
71f1bb1a AV |
809 | txd->frag.addr = cpu_to_le32(skb_dma); |
810 | txd->frag.addrHi = 0; | |
1da177e4 LT |
811 | first_txd->numDesc++; |
812 | ||
9e903e08 ED |
813 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
814 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
1da177e4 LT |
815 | void *frag_addr; |
816 | ||
817 | txd = (struct tx_desc *) (txRing->ringBase + | |
818 | txRing->lastWrite); | |
819 | typhoon_inc_tx_index(&txRing->lastWrite, 1); | |
820 | ||
9e903e08 | 821 | len = skb_frag_size(frag); |
2098401c | 822 | frag_addr = skb_frag_address(frag); |
1da177e4 LT |
823 | skb_dma = pci_map_single(tp->tx_pdev, frag_addr, len, |
824 | PCI_DMA_TODEVICE); | |
825 | txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID; | |
826 | txd->len = cpu_to_le16(len); | |
71f1bb1a AV |
827 | txd->frag.addr = cpu_to_le32(skb_dma); |
828 | txd->frag.addrHi = 0; | |
1da177e4 LT |
829 | first_txd->numDesc++; |
830 | } | |
831 | } | |
832 | ||
833 | /* Kick the 3XP | |
834 | */ | |
835 | wmb(); | |
836 | iowrite32(txRing->lastWrite, tp->tx_ioaddr + txRing->writeRegister); | |
837 | ||
1da177e4 LT |
838 | /* If we don't have room to put the worst case packet on the |
839 | * queue, then we must stop the queue. We need 2 extra | |
840 | * descriptors -- one to prevent ring wrap, and one for the | |
841 | * Tx header. | |
842 | */ | |
843 | numDesc = MAX_SKB_FRAGS + TSO_NUM_DESCRIPTORS + 1; | |
844 | ||
845 | if(typhoon_num_free_tx(txRing) < (numDesc + 2)) { | |
846 | netif_stop_queue(dev); | |
847 | ||
25985edc | 848 | /* A Tx complete IRQ could have gotten between, making |
1da177e4 LT |
849 | * the ring free again. Only need to recheck here, since |
850 | * Tx is serialized. | |
851 | */ | |
852 | if(typhoon_num_free_tx(txRing) >= (numDesc + 2)) | |
853 | netif_wake_queue(dev); | |
854 | } | |
855 | ||
6ed10654 | 856 | return NETDEV_TX_OK; |
1da177e4 LT |
857 | } |
858 | ||
859 | static void | |
860 | typhoon_set_rx_mode(struct net_device *dev) | |
861 | { | |
862 | struct typhoon *tp = netdev_priv(dev); | |
863 | struct cmd_desc xp_cmd; | |
864 | u32 mc_filter[2]; | |
03a710ff | 865 | __le16 filter; |
1da177e4 LT |
866 | |
867 | filter = TYPHOON_RX_FILTER_DIRECTED | TYPHOON_RX_FILTER_BROADCAST; | |
868 | if(dev->flags & IFF_PROMISC) { | |
1da177e4 | 869 | filter |= TYPHOON_RX_FILTER_PROMISCOUS; |
4cd24eaf | 870 | } else if ((netdev_mc_count(dev) > multicast_filter_limit) || |
1da177e4 LT |
871 | (dev->flags & IFF_ALLMULTI)) { |
872 | /* Too many to match, or accept all multicasts. */ | |
873 | filter |= TYPHOON_RX_FILTER_ALL_MCAST; | |
4cd24eaf | 874 | } else if (!netdev_mc_empty(dev)) { |
22bedad3 | 875 | struct netdev_hw_addr *ha; |
1da177e4 LT |
876 | |
877 | memset(mc_filter, 0, sizeof(mc_filter)); | |
22bedad3 JP |
878 | netdev_for_each_mc_addr(ha, dev) { |
879 | int bit = ether_crc(ETH_ALEN, ha->addr) & 0x3f; | |
1da177e4 LT |
880 | mc_filter[bit >> 5] |= 1 << (bit & 0x1f); |
881 | } | |
882 | ||
883 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, | |
884 | TYPHOON_CMD_SET_MULTICAST_HASH); | |
885 | xp_cmd.parm1 = TYPHOON_MCAST_HASH_SET; | |
886 | xp_cmd.parm2 = cpu_to_le32(mc_filter[0]); | |
887 | xp_cmd.parm3 = cpu_to_le32(mc_filter[1]); | |
888 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
889 | ||
890 | filter |= TYPHOON_RX_FILTER_MCAST_HASH; | |
891 | } | |
892 | ||
154ccd82 | 893 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_RX_FILTER); |
1da177e4 LT |
894 | xp_cmd.parm1 = filter; |
895 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
896 | } | |
897 | ||
898 | static int | |
899 | typhoon_do_get_stats(struct typhoon *tp) | |
900 | { | |
901 | struct net_device_stats *stats = &tp->stats; | |
902 | struct net_device_stats *saved = &tp->stats_saved; | |
903 | struct cmd_desc xp_cmd; | |
904 | struct resp_desc xp_resp[7]; | |
905 | struct stats_resp *s = (struct stats_resp *) xp_resp; | |
906 | int err; | |
907 | ||
908 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_STATS); | |
909 | err = typhoon_issue_command(tp, 1, &xp_cmd, 7, xp_resp); | |
910 | if(err < 0) | |
911 | return err; | |
912 | ||
913 | /* 3Com's Linux driver uses txMultipleCollisions as it's | |
914 | * collisions value, but there is some other collision info as well... | |
915 | * | |
916 | * The extra status reported would be a good candidate for | |
917 | * ethtool_ops->get_{strings,stats}() | |
918 | */ | |
21ff2929 ED |
919 | stats->tx_packets = le32_to_cpu(s->txPackets) + |
920 | saved->tx_packets; | |
921 | stats->tx_bytes = le64_to_cpu(s->txBytes) + | |
922 | saved->tx_bytes; | |
923 | stats->tx_errors = le32_to_cpu(s->txCarrierLost) + | |
924 | saved->tx_errors; | |
925 | stats->tx_carrier_errors = le32_to_cpu(s->txCarrierLost) + | |
926 | saved->tx_carrier_errors; | |
927 | stats->collisions = le32_to_cpu(s->txMultipleCollisions) + | |
928 | saved->collisions; | |
929 | stats->rx_packets = le32_to_cpu(s->rxPacketsGood) + | |
930 | saved->rx_packets; | |
931 | stats->rx_bytes = le64_to_cpu(s->rxBytesGood) + | |
932 | saved->rx_bytes; | |
933 | stats->rx_fifo_errors = le32_to_cpu(s->rxFifoOverruns) + | |
934 | saved->rx_fifo_errors; | |
1da177e4 | 935 | stats->rx_errors = le32_to_cpu(s->rxFifoOverruns) + |
21ff2929 ED |
936 | le32_to_cpu(s->BadSSD) + le32_to_cpu(s->rxCrcErrors) + |
937 | saved->rx_errors; | |
938 | stats->rx_crc_errors = le32_to_cpu(s->rxCrcErrors) + | |
939 | saved->rx_crc_errors; | |
940 | stats->rx_length_errors = le32_to_cpu(s->rxOversized) + | |
941 | saved->rx_length_errors; | |
1da177e4 LT |
942 | tp->speed = (s->linkStatus & TYPHOON_LINK_100MBPS) ? |
943 | SPEED_100 : SPEED_10; | |
944 | tp->duplex = (s->linkStatus & TYPHOON_LINK_FULL_DUPLEX) ? | |
945 | DUPLEX_FULL : DUPLEX_HALF; | |
946 | ||
1da177e4 LT |
947 | return 0; |
948 | } | |
949 | ||
950 | static struct net_device_stats * | |
951 | typhoon_get_stats(struct net_device *dev) | |
952 | { | |
953 | struct typhoon *tp = netdev_priv(dev); | |
954 | struct net_device_stats *stats = &tp->stats; | |
955 | struct net_device_stats *saved = &tp->stats_saved; | |
956 | ||
957 | smp_rmb(); | |
958 | if(tp->card_state == Sleeping) | |
959 | return saved; | |
960 | ||
961 | if(typhoon_do_get_stats(tp) < 0) { | |
0bc88e4a | 962 | netdev_err(dev, "error getting stats\n"); |
1da177e4 LT |
963 | return saved; |
964 | } | |
965 | ||
966 | return stats; | |
967 | } | |
968 | ||
1da177e4 LT |
969 | static void |
970 | typhoon_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
971 | { | |
972 | struct typhoon *tp = netdev_priv(dev); | |
973 | struct pci_dev *pci_dev = tp->pdev; | |
974 | struct cmd_desc xp_cmd; | |
975 | struct resp_desc xp_resp[3]; | |
976 | ||
977 | smp_rmb(); | |
978 | if(tp->card_state == Sleeping) { | |
68aad78c RJ |
979 | strlcpy(info->fw_version, "Sleep image", |
980 | sizeof(info->fw_version)); | |
1da177e4 LT |
981 | } else { |
982 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS); | |
983 | if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) { | |
68aad78c RJ |
984 | strlcpy(info->fw_version, "Unknown runtime", |
985 | sizeof(info->fw_version)); | |
1da177e4 | 986 | } else { |
fdcfd77c | 987 | u32 sleep_ver = le32_to_cpu(xp_resp[0].parm2); |
68aad78c RJ |
988 | snprintf(info->fw_version, sizeof(info->fw_version), |
989 | "%02x.%03x.%03x", sleep_ver >> 24, | |
990 | (sleep_ver >> 12) & 0xfff, sleep_ver & 0xfff); | |
1da177e4 LT |
991 | } |
992 | } | |
993 | ||
68aad78c RJ |
994 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); |
995 | strlcpy(info->bus_info, pci_name(pci_dev), sizeof(info->bus_info)); | |
1da177e4 LT |
996 | } |
997 | ||
998 | static int | |
f7a5537c PR |
999 | typhoon_get_link_ksettings(struct net_device *dev, |
1000 | struct ethtool_link_ksettings *cmd) | |
1da177e4 LT |
1001 | { |
1002 | struct typhoon *tp = netdev_priv(dev); | |
b12ab9b1 | 1003 | u32 supported, advertising = 0; |
1da177e4 | 1004 | |
f7a5537c | 1005 | supported = SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | |
1da177e4 LT |
1006 | SUPPORTED_Autoneg; |
1007 | ||
1008 | switch (tp->xcvr_select) { | |
1009 | case TYPHOON_XCVR_10HALF: | |
f7a5537c | 1010 | advertising = ADVERTISED_10baseT_Half; |
1da177e4 LT |
1011 | break; |
1012 | case TYPHOON_XCVR_10FULL: | |
f7a5537c | 1013 | advertising = ADVERTISED_10baseT_Full; |
1da177e4 LT |
1014 | break; |
1015 | case TYPHOON_XCVR_100HALF: | |
f7a5537c | 1016 | advertising = ADVERTISED_100baseT_Half; |
1da177e4 LT |
1017 | break; |
1018 | case TYPHOON_XCVR_100FULL: | |
f7a5537c | 1019 | advertising = ADVERTISED_100baseT_Full; |
1da177e4 LT |
1020 | break; |
1021 | case TYPHOON_XCVR_AUTONEG: | |
f7a5537c | 1022 | advertising = ADVERTISED_10baseT_Half | |
1da177e4 LT |
1023 | ADVERTISED_10baseT_Full | |
1024 | ADVERTISED_100baseT_Half | | |
1025 | ADVERTISED_100baseT_Full | | |
1026 | ADVERTISED_Autoneg; | |
1027 | break; | |
1028 | } | |
1029 | ||
1030 | if(tp->capabilities & TYPHOON_FIBER) { | |
f7a5537c PR |
1031 | supported |= SUPPORTED_FIBRE; |
1032 | advertising |= ADVERTISED_FIBRE; | |
1033 | cmd->base.port = PORT_FIBRE; | |
1da177e4 | 1034 | } else { |
f7a5537c | 1035 | supported |= SUPPORTED_10baseT_Half | |
1da177e4 LT |
1036 | SUPPORTED_10baseT_Full | |
1037 | SUPPORTED_TP; | |
f7a5537c PR |
1038 | advertising |= ADVERTISED_TP; |
1039 | cmd->base.port = PORT_TP; | |
1da177e4 LT |
1040 | } |
1041 | ||
1042 | /* need to get stats to make these link speed/duplex valid */ | |
1043 | typhoon_do_get_stats(tp); | |
f7a5537c PR |
1044 | cmd->base.speed = tp->speed; |
1045 | cmd->base.duplex = tp->duplex; | |
1046 | cmd->base.phy_address = 0; | |
1da177e4 | 1047 | if(tp->xcvr_select == TYPHOON_XCVR_AUTONEG) |
f7a5537c | 1048 | cmd->base.autoneg = AUTONEG_ENABLE; |
1da177e4 | 1049 | else |
f7a5537c | 1050 | cmd->base.autoneg = AUTONEG_DISABLE; |
1da177e4 | 1051 | |
b12ab9b1 PR |
1052 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, |
1053 | supported); | |
1054 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, | |
1055 | advertising); | |
1056 | ||
1da177e4 LT |
1057 | return 0; |
1058 | } | |
1059 | ||
1060 | static int | |
f7a5537c PR |
1061 | typhoon_set_link_ksettings(struct net_device *dev, |
1062 | const struct ethtool_link_ksettings *cmd) | |
1da177e4 LT |
1063 | { |
1064 | struct typhoon *tp = netdev_priv(dev); | |
f7a5537c | 1065 | u32 speed = cmd->base.speed; |
1da177e4 | 1066 | struct cmd_desc xp_cmd; |
03a710ff | 1067 | __le16 xcvr; |
1da177e4 LT |
1068 | int err; |
1069 | ||
1070 | err = -EINVAL; | |
f7a5537c | 1071 | if (cmd->base.autoneg == AUTONEG_ENABLE) { |
1da177e4 LT |
1072 | xcvr = TYPHOON_XCVR_AUTONEG; |
1073 | } else { | |
f7a5537c | 1074 | if (cmd->base.duplex == DUPLEX_HALF) { |
25db0338 | 1075 | if (speed == SPEED_10) |
1da177e4 | 1076 | xcvr = TYPHOON_XCVR_10HALF; |
25db0338 | 1077 | else if (speed == SPEED_100) |
1da177e4 LT |
1078 | xcvr = TYPHOON_XCVR_100HALF; |
1079 | else | |
1080 | goto out; | |
f7a5537c | 1081 | } else if (cmd->base.duplex == DUPLEX_FULL) { |
25db0338 | 1082 | if (speed == SPEED_10) |
1da177e4 | 1083 | xcvr = TYPHOON_XCVR_10FULL; |
25db0338 | 1084 | else if (speed == SPEED_100) |
1da177e4 LT |
1085 | xcvr = TYPHOON_XCVR_100FULL; |
1086 | else | |
1087 | goto out; | |
1088 | } else | |
1089 | goto out; | |
1090 | } | |
1091 | ||
1092 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_XCVR_SELECT); | |
b46281f9 | 1093 | xp_cmd.parm1 = xcvr; |
1da177e4 LT |
1094 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
1095 | if(err < 0) | |
1096 | goto out; | |
1097 | ||
1098 | tp->xcvr_select = xcvr; | |
f7a5537c | 1099 | if (cmd->base.autoneg == AUTONEG_ENABLE) { |
1da177e4 LT |
1100 | tp->speed = 0xff; /* invalid */ |
1101 | tp->duplex = 0xff; /* invalid */ | |
1102 | } else { | |
25db0338 | 1103 | tp->speed = speed; |
f7a5537c | 1104 | tp->duplex = cmd->base.duplex; |
1da177e4 LT |
1105 | } |
1106 | ||
1107 | out: | |
1108 | return err; | |
1109 | } | |
1110 | ||
1111 | static void | |
1112 | typhoon_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1113 | { | |
1114 | struct typhoon *tp = netdev_priv(dev); | |
1115 | ||
1116 | wol->supported = WAKE_PHY | WAKE_MAGIC; | |
1117 | wol->wolopts = 0; | |
1118 | if(tp->wol_events & TYPHOON_WAKE_LINK_EVENT) | |
1119 | wol->wolopts |= WAKE_PHY; | |
1120 | if(tp->wol_events & TYPHOON_WAKE_MAGIC_PKT) | |
1121 | wol->wolopts |= WAKE_MAGIC; | |
1122 | memset(&wol->sopass, 0, sizeof(wol->sopass)); | |
1123 | } | |
1124 | ||
1125 | static int | |
1126 | typhoon_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1127 | { | |
1128 | struct typhoon *tp = netdev_priv(dev); | |
1129 | ||
1130 | if(wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) | |
1131 | return -EINVAL; | |
1132 | ||
1133 | tp->wol_events = 0; | |
1134 | if(wol->wolopts & WAKE_PHY) | |
1135 | tp->wol_events |= TYPHOON_WAKE_LINK_EVENT; | |
1136 | if(wol->wolopts & WAKE_MAGIC) | |
1137 | tp->wol_events |= TYPHOON_WAKE_MAGIC_PKT; | |
1138 | ||
1139 | return 0; | |
1140 | } | |
1141 | ||
1da177e4 LT |
1142 | static void |
1143 | typhoon_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering) | |
1144 | { | |
1145 | ering->rx_max_pending = RXENT_ENTRIES; | |
1da177e4 LT |
1146 | ering->tx_max_pending = TXLO_ENTRIES - 1; |
1147 | ||
1148 | ering->rx_pending = RXENT_ENTRIES; | |
1da177e4 LT |
1149 | ering->tx_pending = TXLO_ENTRIES - 1; |
1150 | } | |
1151 | ||
7282d491 | 1152 | static const struct ethtool_ops typhoon_ethtool_ops = { |
1da177e4 LT |
1153 | .get_drvinfo = typhoon_get_drvinfo, |
1154 | .get_wol = typhoon_get_wol, | |
1155 | .set_wol = typhoon_set_wol, | |
1156 | .get_link = ethtool_op_get_link, | |
1da177e4 | 1157 | .get_ringparam = typhoon_get_ringparam, |
f7a5537c PR |
1158 | .get_link_ksettings = typhoon_get_link_ksettings, |
1159 | .set_link_ksettings = typhoon_set_link_ksettings, | |
1da177e4 LT |
1160 | }; |
1161 | ||
1162 | static int | |
1163 | typhoon_wait_interrupt(void __iomem *ioaddr) | |
1164 | { | |
1165 | int i, err = 0; | |
1166 | ||
1167 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT; i++) { | |
1168 | if(ioread32(ioaddr + TYPHOON_REG_INTR_STATUS) & | |
1169 | TYPHOON_INTR_BOOTCMD) | |
1170 | goto out; | |
1171 | udelay(TYPHOON_UDELAY); | |
1172 | } | |
1173 | ||
1174 | err = -ETIMEDOUT; | |
1175 | ||
1176 | out: | |
1177 | iowrite32(TYPHOON_INTR_BOOTCMD, ioaddr + TYPHOON_REG_INTR_STATUS); | |
1178 | return err; | |
1179 | } | |
1180 | ||
1181 | #define shared_offset(x) offsetof(struct typhoon_shared, x) | |
1182 | ||
1183 | static void | |
1184 | typhoon_init_interface(struct typhoon *tp) | |
1185 | { | |
1186 | struct typhoon_interface *iface = &tp->shared->iface; | |
1187 | dma_addr_t shared_dma; | |
1188 | ||
1189 | memset(tp->shared, 0, sizeof(struct typhoon_shared)); | |
1190 | ||
1191 | /* The *Hi members of iface are all init'd to zero by the memset(). | |
1192 | */ | |
1193 | shared_dma = tp->shared_dma + shared_offset(indexes); | |
1194 | iface->ringIndex = cpu_to_le32(shared_dma); | |
1195 | ||
1196 | shared_dma = tp->shared_dma + shared_offset(txLo); | |
1197 | iface->txLoAddr = cpu_to_le32(shared_dma); | |
1198 | iface->txLoSize = cpu_to_le32(TXLO_ENTRIES * sizeof(struct tx_desc)); | |
1199 | ||
1200 | shared_dma = tp->shared_dma + shared_offset(txHi); | |
1201 | iface->txHiAddr = cpu_to_le32(shared_dma); | |
1202 | iface->txHiSize = cpu_to_le32(TXHI_ENTRIES * sizeof(struct tx_desc)); | |
1203 | ||
1204 | shared_dma = tp->shared_dma + shared_offset(rxBuff); | |
1205 | iface->rxBuffAddr = cpu_to_le32(shared_dma); | |
1206 | iface->rxBuffSize = cpu_to_le32(RXFREE_ENTRIES * | |
1207 | sizeof(struct rx_free)); | |
1208 | ||
1209 | shared_dma = tp->shared_dma + shared_offset(rxLo); | |
1210 | iface->rxLoAddr = cpu_to_le32(shared_dma); | |
1211 | iface->rxLoSize = cpu_to_le32(RX_ENTRIES * sizeof(struct rx_desc)); | |
1212 | ||
1213 | shared_dma = tp->shared_dma + shared_offset(rxHi); | |
1214 | iface->rxHiAddr = cpu_to_le32(shared_dma); | |
1215 | iface->rxHiSize = cpu_to_le32(RX_ENTRIES * sizeof(struct rx_desc)); | |
1216 | ||
1217 | shared_dma = tp->shared_dma + shared_offset(cmd); | |
1218 | iface->cmdAddr = cpu_to_le32(shared_dma); | |
1219 | iface->cmdSize = cpu_to_le32(COMMAND_RING_SIZE); | |
1220 | ||
1221 | shared_dma = tp->shared_dma + shared_offset(resp); | |
1222 | iface->respAddr = cpu_to_le32(shared_dma); | |
1223 | iface->respSize = cpu_to_le32(RESPONSE_RING_SIZE); | |
1224 | ||
1225 | shared_dma = tp->shared_dma + shared_offset(zeroWord); | |
1226 | iface->zeroAddr = cpu_to_le32(shared_dma); | |
1227 | ||
1228 | tp->indexes = &tp->shared->indexes; | |
1229 | tp->txLoRing.ringBase = (u8 *) tp->shared->txLo; | |
1230 | tp->txHiRing.ringBase = (u8 *) tp->shared->txHi; | |
1231 | tp->rxLoRing.ringBase = (u8 *) tp->shared->rxLo; | |
1232 | tp->rxHiRing.ringBase = (u8 *) tp->shared->rxHi; | |
1233 | tp->rxBuffRing.ringBase = (u8 *) tp->shared->rxBuff; | |
1234 | tp->cmdRing.ringBase = (u8 *) tp->shared->cmd; | |
1235 | tp->respRing.ringBase = (u8 *) tp->shared->resp; | |
1236 | ||
1237 | tp->txLoRing.writeRegister = TYPHOON_REG_TX_LO_READY; | |
1238 | tp->txHiRing.writeRegister = TYPHOON_REG_TX_HI_READY; | |
1239 | ||
8cc085c7 | 1240 | tp->txlo_dma_addr = le32_to_cpu(iface->txLoAddr); |
1da177e4 | 1241 | tp->card_state = Sleeping; |
1da177e4 LT |
1242 | |
1243 | tp->offload = TYPHOON_OFFLOAD_IP_CHKSUM | TYPHOON_OFFLOAD_TCP_CHKSUM; | |
1244 | tp->offload |= TYPHOON_OFFLOAD_UDP_CHKSUM | TSO_OFFLOAD_ON; | |
fd59cba4 | 1245 | tp->offload |= TYPHOON_OFFLOAD_VLAN; |
1da177e4 LT |
1246 | |
1247 | spin_lock_init(&tp->command_lock); | |
5fe88eae DD |
1248 | |
1249 | /* Force the writes to the shared memory area out before continuing. */ | |
1250 | wmb(); | |
1da177e4 LT |
1251 | } |
1252 | ||
1253 | static void | |
1254 | typhoon_init_rings(struct typhoon *tp) | |
1255 | { | |
1256 | memset(tp->indexes, 0, sizeof(struct typhoon_indexes)); | |
1257 | ||
1258 | tp->txLoRing.lastWrite = 0; | |
1259 | tp->txHiRing.lastWrite = 0; | |
1260 | tp->rxLoRing.lastWrite = 0; | |
1261 | tp->rxHiRing.lastWrite = 0; | |
1262 | tp->rxBuffRing.lastWrite = 0; | |
1263 | tp->cmdRing.lastWrite = 0; | |
13c3ab86 | 1264 | tp->respRing.lastWrite = 0; |
1da177e4 LT |
1265 | |
1266 | tp->txLoRing.lastRead = 0; | |
1267 | tp->txHiRing.lastRead = 0; | |
1268 | } | |
1269 | ||
b775a750 BH |
1270 | static const struct firmware *typhoon_fw; |
1271 | ||
1272 | static int | |
1273 | typhoon_request_firmware(struct typhoon *tp) | |
1274 | { | |
a8c9a53c DD |
1275 | const struct typhoon_file_header *fHdr; |
1276 | const struct typhoon_section_header *sHdr; | |
1277 | const u8 *image_data; | |
1278 | u32 numSections; | |
1279 | u32 section_len; | |
1280 | u32 remaining; | |
b775a750 BH |
1281 | int err; |
1282 | ||
1283 | if (typhoon_fw) | |
1284 | return 0; | |
1285 | ||
1286 | err = request_firmware(&typhoon_fw, FIRMWARE_NAME, &tp->pdev->dev); | |
1287 | if (err) { | |
0bc88e4a JP |
1288 | netdev_err(tp->dev, "Failed to load firmware \"%s\"\n", |
1289 | FIRMWARE_NAME); | |
b775a750 BH |
1290 | return err; |
1291 | } | |
1292 | ||
00fd5d94 | 1293 | image_data = typhoon_fw->data; |
a8c9a53c DD |
1294 | remaining = typhoon_fw->size; |
1295 | if (remaining < sizeof(struct typhoon_file_header)) | |
1296 | goto invalid_fw; | |
d517c4a1 | 1297 | |
a8c9a53c DD |
1298 | fHdr = (struct typhoon_file_header *) image_data; |
1299 | if (memcmp(fHdr->tag, "TYPHOON", 8)) | |
1300 | goto invalid_fw; | |
1301 | ||
1302 | numSections = le32_to_cpu(fHdr->numSections); | |
1303 | image_data += sizeof(struct typhoon_file_header); | |
1304 | remaining -= sizeof(struct typhoon_file_header); | |
1305 | ||
1306 | while (numSections--) { | |
1307 | if (remaining < sizeof(struct typhoon_section_header)) | |
1308 | goto invalid_fw; | |
1309 | ||
1310 | sHdr = (struct typhoon_section_header *) image_data; | |
1311 | image_data += sizeof(struct typhoon_section_header); | |
1312 | section_len = le32_to_cpu(sHdr->len); | |
1313 | ||
1314 | if (remaining < section_len) | |
1315 | goto invalid_fw; | |
1316 | ||
1317 | image_data += section_len; | |
1318 | remaining -= section_len; | |
b775a750 BH |
1319 | } |
1320 | ||
1321 | return 0; | |
d517c4a1 | 1322 | |
a8c9a53c | 1323 | invalid_fw: |
0bc88e4a | 1324 | netdev_err(tp->dev, "Invalid firmware image\n"); |
d517c4a1 DM |
1325 | release_firmware(typhoon_fw); |
1326 | typhoon_fw = NULL; | |
a8c9a53c | 1327 | return -EINVAL; |
b775a750 BH |
1328 | } |
1329 | ||
1da177e4 LT |
1330 | static int |
1331 | typhoon_download_firmware(struct typhoon *tp) | |
1332 | { | |
1333 | void __iomem *ioaddr = tp->ioaddr; | |
1334 | struct pci_dev *pdev = tp->pdev; | |
b775a750 BH |
1335 | const struct typhoon_file_header *fHdr; |
1336 | const struct typhoon_section_header *sHdr; | |
1337 | const u8 *image_data; | |
a8c9a53c DD |
1338 | void *dpage; |
1339 | dma_addr_t dpage_dma; | |
71f1bb1a | 1340 | __sum16 csum; |
1da177e4 LT |
1341 | u32 irqEnabled; |
1342 | u32 irqMasked; | |
1343 | u32 numSections; | |
1344 | u32 section_len; | |
a8c9a53c | 1345 | u32 len; |
1da177e4 LT |
1346 | u32 load_addr; |
1347 | u32 hmac; | |
1348 | int i; | |
1349 | int err; | |
1350 | ||
00fd5d94 | 1351 | image_data = typhoon_fw->data; |
b775a750 | 1352 | fHdr = (struct typhoon_file_header *) image_data; |
1da177e4 | 1353 | |
a8c9a53c DD |
1354 | /* Cannot just map the firmware image using pci_map_single() as |
1355 | * the firmware is vmalloc()'d and may not be physically contiguous, | |
1356 | * so we allocate some consistent memory to copy the sections into. | |
1357 | */ | |
1da177e4 | 1358 | err = -ENOMEM; |
a8c9a53c DD |
1359 | dpage = pci_alloc_consistent(pdev, PAGE_SIZE, &dpage_dma); |
1360 | if(!dpage) { | |
0bc88e4a | 1361 | netdev_err(tp->dev, "no DMA mem for firmware\n"); |
1da177e4 LT |
1362 | goto err_out; |
1363 | } | |
1364 | ||
1365 | irqEnabled = ioread32(ioaddr + TYPHOON_REG_INTR_ENABLE); | |
1366 | iowrite32(irqEnabled | TYPHOON_INTR_BOOTCMD, | |
1367 | ioaddr + TYPHOON_REG_INTR_ENABLE); | |
1368 | irqMasked = ioread32(ioaddr + TYPHOON_REG_INTR_MASK); | |
1369 | iowrite32(irqMasked | TYPHOON_INTR_BOOTCMD, | |
1370 | ioaddr + TYPHOON_REG_INTR_MASK); | |
1371 | ||
1372 | err = -ETIMEDOUT; | |
1373 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { | |
0bc88e4a | 1374 | netdev_err(tp->dev, "card ready timeout\n"); |
1da177e4 LT |
1375 | goto err_out_irq; |
1376 | } | |
1377 | ||
1378 | numSections = le32_to_cpu(fHdr->numSections); | |
1379 | load_addr = le32_to_cpu(fHdr->startAddr); | |
1380 | ||
1381 | iowrite32(TYPHOON_INTR_BOOTCMD, ioaddr + TYPHOON_REG_INTR_STATUS); | |
1382 | iowrite32(load_addr, ioaddr + TYPHOON_REG_DOWNLOAD_BOOT_ADDR); | |
1383 | hmac = le32_to_cpu(fHdr->hmacDigest[0]); | |
1384 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_0); | |
1385 | hmac = le32_to_cpu(fHdr->hmacDigest[1]); | |
1386 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_1); | |
1387 | hmac = le32_to_cpu(fHdr->hmacDigest[2]); | |
1388 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_2); | |
1389 | hmac = le32_to_cpu(fHdr->hmacDigest[3]); | |
1390 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_3); | |
1391 | hmac = le32_to_cpu(fHdr->hmacDigest[4]); | |
1392 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_4); | |
1393 | typhoon_post_pci_writes(ioaddr); | |
1394 | iowrite32(TYPHOON_BOOTCMD_RUNTIME_IMAGE, ioaddr + TYPHOON_REG_COMMAND); | |
1395 | ||
1396 | image_data += sizeof(struct typhoon_file_header); | |
1397 | ||
1398 | /* The ioread32() in typhoon_wait_interrupt() will force the | |
1399 | * last write to the command register to post, so | |
1400 | * we don't need a typhoon_post_pci_writes() after it. | |
1401 | */ | |
1402 | for(i = 0; i < numSections; i++) { | |
1403 | sHdr = (struct typhoon_section_header *) image_data; | |
1404 | image_data += sizeof(struct typhoon_section_header); | |
1405 | load_addr = le32_to_cpu(sHdr->startAddr); | |
1406 | section_len = le32_to_cpu(sHdr->len); | |
1407 | ||
a8c9a53c DD |
1408 | while(section_len) { |
1409 | len = min_t(u32, section_len, PAGE_SIZE); | |
1da177e4 | 1410 | |
a8c9a53c DD |
1411 | if(typhoon_wait_interrupt(ioaddr) < 0 || |
1412 | ioread32(ioaddr + TYPHOON_REG_STATUS) != | |
1413 | TYPHOON_STATUS_WAITING_FOR_SEGMENT) { | |
0bc88e4a | 1414 | netdev_err(tp->dev, "segment ready timeout\n"); |
a8c9a53c DD |
1415 | goto err_out_irq; |
1416 | } | |
1da177e4 | 1417 | |
a8c9a53c DD |
1418 | /* Do an pseudo IPv4 checksum on the data -- first |
1419 | * need to convert each u16 to cpu order before | |
1420 | * summing. Fortunately, due to the properties of | |
1421 | * the checksum, we can do this once, at the end. | |
1422 | */ | |
1423 | csum = csum_fold(csum_partial_copy_nocheck(image_data, | |
0bc88e4a JP |
1424 | dpage, len, |
1425 | 0)); | |
a8c9a53c DD |
1426 | |
1427 | iowrite32(len, ioaddr + TYPHOON_REG_BOOT_LENGTH); | |
1428 | iowrite32(le16_to_cpu((__force __le16)csum), | |
1429 | ioaddr + TYPHOON_REG_BOOT_CHECKSUM); | |
1430 | iowrite32(load_addr, | |
1431 | ioaddr + TYPHOON_REG_BOOT_DEST_ADDR); | |
1432 | iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI); | |
1433 | iowrite32(dpage_dma, ioaddr + TYPHOON_REG_BOOT_DATA_LO); | |
1434 | typhoon_post_pci_writes(ioaddr); | |
1435 | iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE, | |
0bc88e4a | 1436 | ioaddr + TYPHOON_REG_COMMAND); |
a8c9a53c DD |
1437 | |
1438 | image_data += len; | |
1439 | load_addr += len; | |
1440 | section_len -= len; | |
1441 | } | |
1da177e4 LT |
1442 | } |
1443 | ||
1444 | if(typhoon_wait_interrupt(ioaddr) < 0 || | |
1445 | ioread32(ioaddr + TYPHOON_REG_STATUS) != | |
1446 | TYPHOON_STATUS_WAITING_FOR_SEGMENT) { | |
0bc88e4a | 1447 | netdev_err(tp->dev, "final segment ready timeout\n"); |
1da177e4 LT |
1448 | goto err_out_irq; |
1449 | } | |
1450 | ||
1451 | iowrite32(TYPHOON_BOOTCMD_DNLD_COMPLETE, ioaddr + TYPHOON_REG_COMMAND); | |
1452 | ||
1453 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_WAITING_FOR_BOOT) < 0) { | |
0bc88e4a JP |
1454 | netdev_err(tp->dev, "boot ready timeout, status 0x%0x\n", |
1455 | ioread32(ioaddr + TYPHOON_REG_STATUS)); | |
1da177e4 LT |
1456 | goto err_out_irq; |
1457 | } | |
1458 | ||
1459 | err = 0; | |
1460 | ||
1461 | err_out_irq: | |
1462 | iowrite32(irqMasked, ioaddr + TYPHOON_REG_INTR_MASK); | |
1463 | iowrite32(irqEnabled, ioaddr + TYPHOON_REG_INTR_ENABLE); | |
1464 | ||
a8c9a53c | 1465 | pci_free_consistent(pdev, PAGE_SIZE, dpage, dpage_dma); |
1da177e4 LT |
1466 | |
1467 | err_out: | |
1468 | return err; | |
1469 | } | |
1470 | ||
1471 | static int | |
1472 | typhoon_boot_3XP(struct typhoon *tp, u32 initial_status) | |
1473 | { | |
1474 | void __iomem *ioaddr = tp->ioaddr; | |
1475 | ||
1476 | if(typhoon_wait_status(ioaddr, initial_status) < 0) { | |
0bc88e4a | 1477 | netdev_err(tp->dev, "boot ready timeout\n"); |
1da177e4 LT |
1478 | goto out_timeout; |
1479 | } | |
1480 | ||
1481 | iowrite32(0, ioaddr + TYPHOON_REG_BOOT_RECORD_ADDR_HI); | |
1482 | iowrite32(tp->shared_dma, ioaddr + TYPHOON_REG_BOOT_RECORD_ADDR_LO); | |
1483 | typhoon_post_pci_writes(ioaddr); | |
1484 | iowrite32(TYPHOON_BOOTCMD_REG_BOOT_RECORD, | |
1485 | ioaddr + TYPHOON_REG_COMMAND); | |
1486 | ||
1487 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_RUNNING) < 0) { | |
0bc88e4a JP |
1488 | netdev_err(tp->dev, "boot finish timeout (status 0x%x)\n", |
1489 | ioread32(ioaddr + TYPHOON_REG_STATUS)); | |
1da177e4 LT |
1490 | goto out_timeout; |
1491 | } | |
1492 | ||
1493 | /* Clear the Transmit and Command ready registers | |
1494 | */ | |
1495 | iowrite32(0, ioaddr + TYPHOON_REG_TX_HI_READY); | |
1496 | iowrite32(0, ioaddr + TYPHOON_REG_CMD_READY); | |
1497 | iowrite32(0, ioaddr + TYPHOON_REG_TX_LO_READY); | |
1498 | typhoon_post_pci_writes(ioaddr); | |
1499 | iowrite32(TYPHOON_BOOTCMD_BOOT, ioaddr + TYPHOON_REG_COMMAND); | |
1500 | ||
1501 | return 0; | |
1502 | ||
1503 | out_timeout: | |
1504 | return -ETIMEDOUT; | |
1505 | } | |
1506 | ||
1507 | static u32 | |
1508 | typhoon_clean_tx(struct typhoon *tp, struct transmit_ring *txRing, | |
03a710ff | 1509 | volatile __le32 * index) |
1da177e4 LT |
1510 | { |
1511 | u32 lastRead = txRing->lastRead; | |
1512 | struct tx_desc *tx; | |
1513 | dma_addr_t skb_dma; | |
1514 | int dma_len; | |
1515 | int type; | |
1516 | ||
1517 | while(lastRead != le32_to_cpu(*index)) { | |
1518 | tx = (struct tx_desc *) (txRing->ringBase + lastRead); | |
1519 | type = tx->flags & TYPHOON_TYPE_MASK; | |
1520 | ||
1521 | if(type == TYPHOON_TX_DESC) { | |
1522 | /* This tx_desc describes a packet. | |
1523 | */ | |
71f1bb1a | 1524 | unsigned long ptr = tx->tx_addr; |
1da177e4 LT |
1525 | struct sk_buff *skb = (struct sk_buff *) ptr; |
1526 | dev_kfree_skb_irq(skb); | |
1527 | } else if(type == TYPHOON_FRAG_DESC) { | |
1528 | /* This tx_desc describes a memory mapping. Free it. | |
1529 | */ | |
71f1bb1a | 1530 | skb_dma = (dma_addr_t) le32_to_cpu(tx->frag.addr); |
1da177e4 LT |
1531 | dma_len = le16_to_cpu(tx->len); |
1532 | pci_unmap_single(tp->pdev, skb_dma, dma_len, | |
1533 | PCI_DMA_TODEVICE); | |
1534 | } | |
1535 | ||
1536 | tx->flags = 0; | |
1537 | typhoon_inc_tx_index(&lastRead, 1); | |
1538 | } | |
1539 | ||
1540 | return lastRead; | |
1541 | } | |
1542 | ||
1543 | static void | |
1544 | typhoon_tx_complete(struct typhoon *tp, struct transmit_ring *txRing, | |
03a710ff | 1545 | volatile __le32 * index) |
1da177e4 LT |
1546 | { |
1547 | u32 lastRead; | |
1548 | int numDesc = MAX_SKB_FRAGS + 1; | |
1549 | ||
1550 | /* This will need changing if we start to use the Hi Tx ring. */ | |
1551 | lastRead = typhoon_clean_tx(tp, txRing, index); | |
1552 | if(netif_queue_stopped(tp->dev) && typhoon_num_free(txRing->lastWrite, | |
1553 | lastRead, TXLO_ENTRIES) > (numDesc + 2)) | |
1554 | netif_wake_queue(tp->dev); | |
1555 | ||
1556 | txRing->lastRead = lastRead; | |
1557 | smp_wmb(); | |
1558 | } | |
1559 | ||
1560 | static void | |
1561 | typhoon_recycle_rx_skb(struct typhoon *tp, u32 idx) | |
1562 | { | |
1563 | struct typhoon_indexes *indexes = tp->indexes; | |
1564 | struct rxbuff_ent *rxb = &tp->rxbuffers[idx]; | |
1565 | struct basic_ring *ring = &tp->rxBuffRing; | |
1566 | struct rx_free *r; | |
1567 | ||
1568 | if((ring->lastWrite + sizeof(*r)) % (RXFREE_ENTRIES * sizeof(*r)) == | |
8a5ed9ef | 1569 | le32_to_cpu(indexes->rxBuffCleared)) { |
1da177e4 LT |
1570 | /* no room in ring, just drop the skb |
1571 | */ | |
1572 | dev_kfree_skb_any(rxb->skb); | |
1573 | rxb->skb = NULL; | |
1574 | return; | |
1575 | } | |
1576 | ||
1577 | r = (struct rx_free *) (ring->ringBase + ring->lastWrite); | |
1578 | typhoon_inc_rxfree_index(&ring->lastWrite, 1); | |
1579 | r->virtAddr = idx; | |
1580 | r->physAddr = cpu_to_le32(rxb->dma_addr); | |
1581 | ||
1582 | /* Tell the card about it */ | |
1583 | wmb(); | |
1584 | indexes->rxBuffReady = cpu_to_le32(ring->lastWrite); | |
1585 | } | |
1586 | ||
1587 | static int | |
1588 | typhoon_alloc_rx_skb(struct typhoon *tp, u32 idx) | |
1589 | { | |
1590 | struct typhoon_indexes *indexes = tp->indexes; | |
1591 | struct rxbuff_ent *rxb = &tp->rxbuffers[idx]; | |
1592 | struct basic_ring *ring = &tp->rxBuffRing; | |
1593 | struct rx_free *r; | |
1594 | struct sk_buff *skb; | |
1595 | dma_addr_t dma_addr; | |
1596 | ||
1597 | rxb->skb = NULL; | |
1598 | ||
1599 | if((ring->lastWrite + sizeof(*r)) % (RXFREE_ENTRIES * sizeof(*r)) == | |
8a5ed9ef | 1600 | le32_to_cpu(indexes->rxBuffCleared)) |
1da177e4 LT |
1601 | return -ENOMEM; |
1602 | ||
1d266430 | 1603 | skb = netdev_alloc_skb(tp->dev, PKT_BUF_SZ); |
1da177e4 LT |
1604 | if(!skb) |
1605 | return -ENOMEM; | |
1606 | ||
1607 | #if 0 | |
1608 | /* Please, 3com, fix the firmware to allow DMA to a unaligned | |
1609 | * address! Pretty please? | |
1610 | */ | |
1611 | skb_reserve(skb, 2); | |
1612 | #endif | |
1613 | ||
689be439 | 1614 | dma_addr = pci_map_single(tp->pdev, skb->data, |
1da177e4 LT |
1615 | PKT_BUF_SZ, PCI_DMA_FROMDEVICE); |
1616 | ||
1617 | /* Since no card does 64 bit DAC, the high bits will never | |
1618 | * change from zero. | |
1619 | */ | |
1620 | r = (struct rx_free *) (ring->ringBase + ring->lastWrite); | |
1621 | typhoon_inc_rxfree_index(&ring->lastWrite, 1); | |
1622 | r->virtAddr = idx; | |
1623 | r->physAddr = cpu_to_le32(dma_addr); | |
1624 | rxb->skb = skb; | |
1625 | rxb->dma_addr = dma_addr; | |
1626 | ||
1627 | /* Tell the card about it */ | |
1628 | wmb(); | |
1629 | indexes->rxBuffReady = cpu_to_le32(ring->lastWrite); | |
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | static int | |
03a710ff AV |
1634 | typhoon_rx(struct typhoon *tp, struct basic_ring *rxRing, volatile __le32 * ready, |
1635 | volatile __le32 * cleared, int budget) | |
1da177e4 LT |
1636 | { |
1637 | struct rx_desc *rx; | |
1638 | struct sk_buff *skb, *new_skb; | |
1639 | struct rxbuff_ent *rxb; | |
1640 | dma_addr_t dma_addr; | |
1641 | u32 local_ready; | |
1642 | u32 rxaddr; | |
1643 | int pkt_len; | |
1644 | u32 idx; | |
03a710ff | 1645 | __le32 csum_bits; |
1da177e4 LT |
1646 | int received; |
1647 | ||
1648 | received = 0; | |
1649 | local_ready = le32_to_cpu(*ready); | |
1650 | rxaddr = le32_to_cpu(*cleared); | |
1651 | while(rxaddr != local_ready && budget > 0) { | |
1652 | rx = (struct rx_desc *) (rxRing->ringBase + rxaddr); | |
1653 | idx = rx->addr; | |
1654 | rxb = &tp->rxbuffers[idx]; | |
1655 | skb = rxb->skb; | |
1656 | dma_addr = rxb->dma_addr; | |
1657 | ||
1658 | typhoon_inc_rx_index(&rxaddr, 1); | |
1659 | ||
1660 | if(rx->flags & TYPHOON_RX_ERROR) { | |
1661 | typhoon_recycle_rx_skb(tp, idx); | |
1662 | continue; | |
1663 | } | |
1664 | ||
1665 | pkt_len = le16_to_cpu(rx->frameLen); | |
1666 | ||
1667 | if(pkt_len < rx_copybreak && | |
1d266430 | 1668 | (new_skb = netdev_alloc_skb(tp->dev, pkt_len + 2)) != NULL) { |
1da177e4 LT |
1669 | skb_reserve(new_skb, 2); |
1670 | pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, | |
1671 | PKT_BUF_SZ, | |
1672 | PCI_DMA_FROMDEVICE); | |
8c7b7faa | 1673 | skb_copy_to_linear_data(new_skb, skb->data, pkt_len); |
1da177e4 LT |
1674 | pci_dma_sync_single_for_device(tp->pdev, dma_addr, |
1675 | PKT_BUF_SZ, | |
1676 | PCI_DMA_FROMDEVICE); | |
1677 | skb_put(new_skb, pkt_len); | |
1678 | typhoon_recycle_rx_skb(tp, idx); | |
1679 | } else { | |
1680 | new_skb = skb; | |
1681 | skb_put(new_skb, pkt_len); | |
1682 | pci_unmap_single(tp->pdev, dma_addr, PKT_BUF_SZ, | |
1683 | PCI_DMA_FROMDEVICE); | |
1684 | typhoon_alloc_rx_skb(tp, idx); | |
1685 | } | |
1686 | new_skb->protocol = eth_type_trans(new_skb, tp->dev); | |
1687 | csum_bits = rx->rxStatus & (TYPHOON_RX_IP_CHK_GOOD | | |
1688 | TYPHOON_RX_UDP_CHK_GOOD | TYPHOON_RX_TCP_CHK_GOOD); | |
1689 | if(csum_bits == | |
8e95a202 JP |
1690 | (TYPHOON_RX_IP_CHK_GOOD | TYPHOON_RX_TCP_CHK_GOOD) || |
1691 | csum_bits == | |
1da177e4 LT |
1692 | (TYPHOON_RX_IP_CHK_GOOD | TYPHOON_RX_UDP_CHK_GOOD)) { |
1693 | new_skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1694 | } else | |
bc8acf2c | 1695 | skb_checksum_none_assert(new_skb); |
1da177e4 | 1696 | |
fd59cba4 | 1697 | if (rx->rxStatus & TYPHOON_RX_VLAN) |
86a9bad3 | 1698 | __vlan_hwaccel_put_tag(new_skb, htons(ETH_P_8021Q), |
fd59cba4 DD |
1699 | ntohl(rx->vlanTag) & 0xffff); |
1700 | netif_receive_skb(new_skb); | |
1da177e4 | 1701 | |
1da177e4 LT |
1702 | received++; |
1703 | budget--; | |
1704 | } | |
1705 | *cleared = cpu_to_le32(rxaddr); | |
1706 | ||
1707 | return received; | |
1708 | } | |
1709 | ||
1710 | static void | |
1711 | typhoon_fill_free_ring(struct typhoon *tp) | |
1712 | { | |
1713 | u32 i; | |
1714 | ||
1715 | for(i = 0; i < RXENT_ENTRIES; i++) { | |
1716 | struct rxbuff_ent *rxb = &tp->rxbuffers[i]; | |
1717 | if(rxb->skb) | |
1718 | continue; | |
1719 | if(typhoon_alloc_rx_skb(tp, i) < 0) | |
1720 | break; | |
1721 | } | |
1722 | } | |
1723 | ||
1724 | static int | |
bea3348e | 1725 | typhoon_poll(struct napi_struct *napi, int budget) |
1da177e4 | 1726 | { |
bea3348e | 1727 | struct typhoon *tp = container_of(napi, struct typhoon, napi); |
1da177e4 | 1728 | struct typhoon_indexes *indexes = tp->indexes; |
bea3348e | 1729 | int work_done; |
1da177e4 LT |
1730 | |
1731 | rmb(); | |
1732 | if(!tp->awaiting_resp && indexes->respReady != indexes->respCleared) | |
1733 | typhoon_process_response(tp, 0, NULL); | |
1734 | ||
1735 | if(le32_to_cpu(indexes->txLoCleared) != tp->txLoRing.lastRead) | |
1736 | typhoon_tx_complete(tp, &tp->txLoRing, &indexes->txLoCleared); | |
1737 | ||
1da177e4 | 1738 | work_done = 0; |
1da177e4 LT |
1739 | |
1740 | if(indexes->rxHiCleared != indexes->rxHiReady) { | |
bea3348e | 1741 | work_done += typhoon_rx(tp, &tp->rxHiRing, &indexes->rxHiReady, |
1da177e4 | 1742 | &indexes->rxHiCleared, budget); |
1da177e4 LT |
1743 | } |
1744 | ||
1745 | if(indexes->rxLoCleared != indexes->rxLoReady) { | |
1746 | work_done += typhoon_rx(tp, &tp->rxLoRing, &indexes->rxLoReady, | |
bea3348e | 1747 | &indexes->rxLoCleared, budget - work_done); |
1da177e4 LT |
1748 | } |
1749 | ||
1750 | if(le32_to_cpu(indexes->rxBuffCleared) == tp->rxBuffRing.lastWrite) { | |
1751 | /* rxBuff ring is empty, try to fill it. */ | |
1752 | typhoon_fill_free_ring(tp); | |
1753 | } | |
1754 | ||
bea3348e | 1755 | if (work_done < budget) { |
288379f0 | 1756 | napi_complete(napi); |
1da177e4 LT |
1757 | iowrite32(TYPHOON_INTR_NONE, |
1758 | tp->ioaddr + TYPHOON_REG_INTR_MASK); | |
1759 | typhoon_post_pci_writes(tp->ioaddr); | |
1760 | } | |
1761 | ||
bea3348e | 1762 | return work_done; |
1da177e4 LT |
1763 | } |
1764 | ||
1765 | static irqreturn_t | |
7d12e780 | 1766 | typhoon_interrupt(int irq, void *dev_instance) |
1da177e4 | 1767 | { |
06efcad0 | 1768 | struct net_device *dev = dev_instance; |
8f15ea42 | 1769 | struct typhoon *tp = netdev_priv(dev); |
1da177e4 LT |
1770 | void __iomem *ioaddr = tp->ioaddr; |
1771 | u32 intr_status; | |
1772 | ||
1773 | intr_status = ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); | |
1774 | if(!(intr_status & TYPHOON_INTR_HOST_INT)) | |
1775 | return IRQ_NONE; | |
1776 | ||
1777 | iowrite32(intr_status, ioaddr + TYPHOON_REG_INTR_STATUS); | |
1778 | ||
288379f0 | 1779 | if (napi_schedule_prep(&tp->napi)) { |
1da177e4 LT |
1780 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); |
1781 | typhoon_post_pci_writes(ioaddr); | |
288379f0 | 1782 | __napi_schedule(&tp->napi); |
1da177e4 | 1783 | } else { |
0bc88e4a | 1784 | netdev_err(dev, "Error, poll already scheduled\n"); |
1da177e4 LT |
1785 | } |
1786 | return IRQ_HANDLED; | |
1787 | } | |
1788 | ||
1789 | static void | |
1790 | typhoon_free_rx_rings(struct typhoon *tp) | |
1791 | { | |
1792 | u32 i; | |
1793 | ||
1794 | for(i = 0; i < RXENT_ENTRIES; i++) { | |
1795 | struct rxbuff_ent *rxb = &tp->rxbuffers[i]; | |
1796 | if(rxb->skb) { | |
1797 | pci_unmap_single(tp->pdev, rxb->dma_addr, PKT_BUF_SZ, | |
1798 | PCI_DMA_FROMDEVICE); | |
1799 | dev_kfree_skb(rxb->skb); | |
1800 | rxb->skb = NULL; | |
1801 | } | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | static int | |
03a710ff | 1806 | typhoon_sleep(struct typhoon *tp, pci_power_t state, __le16 events) |
1da177e4 LT |
1807 | { |
1808 | struct pci_dev *pdev = tp->pdev; | |
1809 | void __iomem *ioaddr = tp->ioaddr; | |
1810 | struct cmd_desc xp_cmd; | |
1811 | int err; | |
1812 | ||
1813 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_ENABLE_WAKE_EVENTS); | |
1814 | xp_cmd.parm1 = events; | |
1815 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1816 | if(err < 0) { | |
0bc88e4a JP |
1817 | netdev_err(tp->dev, "typhoon_sleep(): wake events cmd err %d\n", |
1818 | err); | |
1da177e4 LT |
1819 | return err; |
1820 | } | |
1821 | ||
1822 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_GOTO_SLEEP); | |
1823 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1824 | if(err < 0) { | |
0bc88e4a | 1825 | netdev_err(tp->dev, "typhoon_sleep(): sleep cmd err %d\n", err); |
1da177e4 LT |
1826 | return err; |
1827 | } | |
1828 | ||
1829 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_SLEEPING) < 0) | |
1830 | return -ETIMEDOUT; | |
1831 | ||
1832 | /* Since we cannot monitor the status of the link while sleeping, | |
1833 | * tell the world it went away. | |
1834 | */ | |
1835 | netif_carrier_off(tp->dev); | |
1836 | ||
2a569579 | 1837 | pci_enable_wake(tp->pdev, state, 1); |
1da177e4 | 1838 | pci_disable_device(pdev); |
2a569579 | 1839 | return pci_set_power_state(pdev, state); |
1da177e4 LT |
1840 | } |
1841 | ||
1842 | static int | |
1843 | typhoon_wakeup(struct typhoon *tp, int wait_type) | |
1844 | { | |
1845 | struct pci_dev *pdev = tp->pdev; | |
1846 | void __iomem *ioaddr = tp->ioaddr; | |
1847 | ||
1848 | pci_set_power_state(pdev, PCI_D0); | |
1849 | pci_restore_state(pdev); | |
1850 | ||
1851 | /* Post 2.x.x versions of the Sleep Image require a reset before | |
1852 | * we can download the Runtime Image. But let's not make users of | |
1853 | * the old firmware pay for the reset. | |
1854 | */ | |
1855 | iowrite32(TYPHOON_BOOTCMD_WAKEUP, ioaddr + TYPHOON_REG_COMMAND); | |
1856 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_WAITING_FOR_HOST) < 0 || | |
1857 | (tp->capabilities & TYPHOON_WAKEUP_NEEDS_RESET)) | |
1858 | return typhoon_reset(ioaddr, wait_type); | |
1859 | ||
1860 | return 0; | |
1861 | } | |
1862 | ||
1863 | static int | |
1864 | typhoon_start_runtime(struct typhoon *tp) | |
1865 | { | |
1866 | struct net_device *dev = tp->dev; | |
1867 | void __iomem *ioaddr = tp->ioaddr; | |
1868 | struct cmd_desc xp_cmd; | |
1869 | int err; | |
1870 | ||
1871 | typhoon_init_rings(tp); | |
1872 | typhoon_fill_free_ring(tp); | |
1873 | ||
1874 | err = typhoon_download_firmware(tp); | |
1875 | if(err < 0) { | |
0bc88e4a | 1876 | netdev_err(tp->dev, "cannot load runtime on 3XP\n"); |
1da177e4 LT |
1877 | goto error_out; |
1878 | } | |
1879 | ||
1880 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_BOOT) < 0) { | |
0bc88e4a | 1881 | netdev_err(tp->dev, "cannot boot 3XP\n"); |
1da177e4 LT |
1882 | err = -EIO; |
1883 | goto error_out; | |
1884 | } | |
1885 | ||
1886 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_MAX_PKT_SIZE); | |
1887 | xp_cmd.parm1 = cpu_to_le16(PKT_BUF_SZ); | |
1888 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1889 | if(err < 0) | |
1890 | goto error_out; | |
1891 | ||
1892 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_MAC_ADDRESS); | |
03a710ff AV |
1893 | xp_cmd.parm1 = cpu_to_le16(ntohs(*(__be16 *)&dev->dev_addr[0])); |
1894 | xp_cmd.parm2 = cpu_to_le32(ntohl(*(__be32 *)&dev->dev_addr[2])); | |
1da177e4 LT |
1895 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
1896 | if(err < 0) | |
1897 | goto error_out; | |
1898 | ||
1899 | /* Disable IRQ coalescing -- we can reenable it when 3Com gives | |
1900 | * us some more information on how to control it. | |
1901 | */ | |
1902 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_IRQ_COALESCE_CTRL); | |
1903 | xp_cmd.parm1 = 0; | |
1904 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1905 | if(err < 0) | |
1906 | goto error_out; | |
1907 | ||
1908 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_XCVR_SELECT); | |
1909 | xp_cmd.parm1 = tp->xcvr_select; | |
1910 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1911 | if(err < 0) | |
1912 | goto error_out; | |
1913 | ||
1914 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_VLAN_TYPE_WRITE); | |
649aa95d | 1915 | xp_cmd.parm1 = cpu_to_le16(ETH_P_8021Q); |
1da177e4 LT |
1916 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
1917 | if(err < 0) | |
1918 | goto error_out; | |
1919 | ||
1920 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_OFFLOAD_TASKS); | |
1da177e4 LT |
1921 | xp_cmd.parm2 = tp->offload; |
1922 | xp_cmd.parm3 = tp->offload; | |
1923 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1da177e4 LT |
1924 | if(err < 0) |
1925 | goto error_out; | |
1926 | ||
1927 | typhoon_set_rx_mode(dev); | |
1928 | ||
1929 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_TX_ENABLE); | |
1930 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1931 | if(err < 0) | |
1932 | goto error_out; | |
1933 | ||
1934 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_RX_ENABLE); | |
1935 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1936 | if(err < 0) | |
1937 | goto error_out; | |
1938 | ||
1939 | tp->card_state = Running; | |
1940 | smp_wmb(); | |
1941 | ||
1942 | iowrite32(TYPHOON_INTR_ENABLE_ALL, ioaddr + TYPHOON_REG_INTR_ENABLE); | |
1943 | iowrite32(TYPHOON_INTR_NONE, ioaddr + TYPHOON_REG_INTR_MASK); | |
1944 | typhoon_post_pci_writes(ioaddr); | |
1945 | ||
1946 | return 0; | |
1947 | ||
1948 | error_out: | |
1949 | typhoon_reset(ioaddr, WaitNoSleep); | |
1950 | typhoon_free_rx_rings(tp); | |
1951 | typhoon_init_rings(tp); | |
1952 | return err; | |
1953 | } | |
1954 | ||
1955 | static int | |
1956 | typhoon_stop_runtime(struct typhoon *tp, int wait_type) | |
1957 | { | |
1958 | struct typhoon_indexes *indexes = tp->indexes; | |
1959 | struct transmit_ring *txLo = &tp->txLoRing; | |
1960 | void __iomem *ioaddr = tp->ioaddr; | |
1961 | struct cmd_desc xp_cmd; | |
1962 | int i; | |
1963 | ||
1964 | /* Disable interrupts early, since we can't schedule a poll | |
1965 | * when called with !netif_running(). This will be posted | |
1966 | * when we force the posting of the command. | |
1967 | */ | |
1968 | iowrite32(TYPHOON_INTR_NONE, ioaddr + TYPHOON_REG_INTR_ENABLE); | |
1969 | ||
1970 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_RX_DISABLE); | |
1971 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1972 | ||
1973 | /* Wait 1/2 sec for any outstanding transmits to occur | |
1974 | * We'll cleanup after the reset if this times out. | |
1975 | */ | |
1976 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT; i++) { | |
1977 | if(indexes->txLoCleared == cpu_to_le32(txLo->lastWrite)) | |
1978 | break; | |
1979 | udelay(TYPHOON_UDELAY); | |
1980 | } | |
1981 | ||
1982 | if(i == TYPHOON_WAIT_TIMEOUT) | |
0bc88e4a | 1983 | netdev_err(tp->dev, "halt timed out waiting for Tx to complete\n"); |
1da177e4 LT |
1984 | |
1985 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_TX_DISABLE); | |
1986 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1987 | ||
1988 | /* save the statistics so when we bring the interface up again, | |
1989 | * the values reported to userspace are correct. | |
1990 | */ | |
1991 | tp->card_state = Sleeping; | |
1992 | smp_wmb(); | |
1993 | typhoon_do_get_stats(tp); | |
1994 | memcpy(&tp->stats_saved, &tp->stats, sizeof(struct net_device_stats)); | |
1995 | ||
1996 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_HALT); | |
1997 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); | |
1998 | ||
1999 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_HALTED) < 0) | |
0bc88e4a | 2000 | netdev_err(tp->dev, "timed out waiting for 3XP to halt\n"); |
1da177e4 LT |
2001 | |
2002 | if(typhoon_reset(ioaddr, wait_type) < 0) { | |
0bc88e4a | 2003 | netdev_err(tp->dev, "unable to reset 3XP\n"); |
1da177e4 LT |
2004 | return -ETIMEDOUT; |
2005 | } | |
2006 | ||
2007 | /* cleanup any outstanding Tx packets */ | |
2008 | if(indexes->txLoCleared != cpu_to_le32(txLo->lastWrite)) { | |
2009 | indexes->txLoCleared = cpu_to_le32(txLo->lastWrite); | |
2010 | typhoon_clean_tx(tp, &tp->txLoRing, &indexes->txLoCleared); | |
2011 | } | |
2012 | ||
2013 | return 0; | |
2014 | } | |
2015 | ||
2016 | static void | |
2017 | typhoon_tx_timeout(struct net_device *dev) | |
2018 | { | |
2019 | struct typhoon *tp = netdev_priv(dev); | |
2020 | ||
2021 | if(typhoon_reset(tp->ioaddr, WaitNoSleep) < 0) { | |
0bc88e4a | 2022 | netdev_warn(dev, "could not reset in tx timeout\n"); |
a089377f | 2023 | goto truly_dead; |
1da177e4 LT |
2024 | } |
2025 | ||
2026 | /* If we ever start using the Hi ring, it will need cleaning too */ | |
2027 | typhoon_clean_tx(tp, &tp->txLoRing, &tp->indexes->txLoCleared); | |
2028 | typhoon_free_rx_rings(tp); | |
2029 | ||
2030 | if(typhoon_start_runtime(tp) < 0) { | |
0bc88e4a | 2031 | netdev_err(dev, "could not start runtime in tx timeout\n"); |
a089377f | 2032 | goto truly_dead; |
1da177e4 LT |
2033 | } |
2034 | ||
2035 | netif_wake_queue(dev); | |
2036 | return; | |
2037 | ||
a089377f | 2038 | truly_dead: |
1da177e4 LT |
2039 | /* Reset the hardware, and turn off carrier to avoid more timeouts */ |
2040 | typhoon_reset(tp->ioaddr, NoWait); | |
2041 | netif_carrier_off(dev); | |
2042 | } | |
2043 | ||
2044 | static int | |
2045 | typhoon_open(struct net_device *dev) | |
2046 | { | |
2047 | struct typhoon *tp = netdev_priv(dev); | |
2048 | int err; | |
2049 | ||
b775a750 BH |
2050 | err = typhoon_request_firmware(tp); |
2051 | if (err) | |
2052 | goto out; | |
2053 | ||
1da177e4 LT |
2054 | err = typhoon_wakeup(tp, WaitSleep); |
2055 | if(err < 0) { | |
0bc88e4a | 2056 | netdev_err(dev, "unable to wakeup device\n"); |
1da177e4 LT |
2057 | goto out_sleep; |
2058 | } | |
2059 | ||
aa36ab8e | 2060 | err = request_irq(dev->irq, typhoon_interrupt, IRQF_SHARED, |
1da177e4 LT |
2061 | dev->name, dev); |
2062 | if(err < 0) | |
2063 | goto out_sleep; | |
2064 | ||
bea3348e SH |
2065 | napi_enable(&tp->napi); |
2066 | ||
1da177e4 | 2067 | err = typhoon_start_runtime(tp); |
bea3348e SH |
2068 | if(err < 0) { |
2069 | napi_disable(&tp->napi); | |
1da177e4 | 2070 | goto out_irq; |
bea3348e | 2071 | } |
1da177e4 LT |
2072 | |
2073 | netif_start_queue(dev); | |
2074 | return 0; | |
2075 | ||
2076 | out_irq: | |
2077 | free_irq(dev->irq, dev); | |
2078 | ||
2079 | out_sleep: | |
2080 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { | |
0bc88e4a | 2081 | netdev_err(dev, "unable to reboot into sleep img\n"); |
1da177e4 LT |
2082 | typhoon_reset(tp->ioaddr, NoWait); |
2083 | goto out; | |
2084 | } | |
2085 | ||
6aa20a22 | 2086 | if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) |
0bc88e4a | 2087 | netdev_err(dev, "unable to go back to sleep\n"); |
1da177e4 LT |
2088 | |
2089 | out: | |
2090 | return err; | |
2091 | } | |
2092 | ||
2093 | static int | |
2094 | typhoon_close(struct net_device *dev) | |
2095 | { | |
2096 | struct typhoon *tp = netdev_priv(dev); | |
2097 | ||
2098 | netif_stop_queue(dev); | |
bea3348e | 2099 | napi_disable(&tp->napi); |
1da177e4 LT |
2100 | |
2101 | if(typhoon_stop_runtime(tp, WaitSleep) < 0) | |
0bc88e4a | 2102 | netdev_err(dev, "unable to stop runtime\n"); |
1da177e4 LT |
2103 | |
2104 | /* Make sure there is no irq handler running on a different CPU. */ | |
1da177e4 LT |
2105 | free_irq(dev->irq, dev); |
2106 | ||
2107 | typhoon_free_rx_rings(tp); | |
2108 | typhoon_init_rings(tp); | |
2109 | ||
2110 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) | |
0bc88e4a | 2111 | netdev_err(dev, "unable to boot sleep image\n"); |
1da177e4 LT |
2112 | |
2113 | if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) | |
0bc88e4a | 2114 | netdev_err(dev, "unable to put card to sleep\n"); |
1da177e4 LT |
2115 | |
2116 | return 0; | |
2117 | } | |
2118 | ||
2119 | #ifdef CONFIG_PM | |
2120 | static int | |
2121 | typhoon_resume(struct pci_dev *pdev) | |
2122 | { | |
2123 | struct net_device *dev = pci_get_drvdata(pdev); | |
2124 | struct typhoon *tp = netdev_priv(dev); | |
2125 | ||
2126 | /* If we're down, resume when we are upped. | |
2127 | */ | |
2128 | if(!netif_running(dev)) | |
2129 | return 0; | |
2130 | ||
2131 | if(typhoon_wakeup(tp, WaitNoSleep) < 0) { | |
0bc88e4a | 2132 | netdev_err(dev, "critical: could not wake up in resume\n"); |
1da177e4 LT |
2133 | goto reset; |
2134 | } | |
2135 | ||
2136 | if(typhoon_start_runtime(tp) < 0) { | |
0bc88e4a | 2137 | netdev_err(dev, "critical: could not start runtime in resume\n"); |
1da177e4 LT |
2138 | goto reset; |
2139 | } | |
2140 | ||
2141 | netif_device_attach(dev); | |
1da177e4 LT |
2142 | return 0; |
2143 | ||
2144 | reset: | |
2145 | typhoon_reset(tp->ioaddr, NoWait); | |
2146 | return -EBUSY; | |
2147 | } | |
2148 | ||
2149 | static int | |
2150 | typhoon_suspend(struct pci_dev *pdev, pm_message_t state) | |
2151 | { | |
2152 | struct net_device *dev = pci_get_drvdata(pdev); | |
2153 | struct typhoon *tp = netdev_priv(dev); | |
2154 | struct cmd_desc xp_cmd; | |
2155 | ||
2156 | /* If we're down, we're already suspended. | |
2157 | */ | |
2158 | if(!netif_running(dev)) | |
2159 | return 0; | |
2160 | ||
fd59cba4 DD |
2161 | /* TYPHOON_OFFLOAD_VLAN is always on now, so this doesn't work */ |
2162 | if(tp->wol_events & TYPHOON_WAKE_MAGIC_PKT) | |
2163 | netdev_warn(dev, "cannot do WAKE_MAGIC with VLAN offloading\n"); | |
1da177e4 LT |
2164 | |
2165 | netif_device_detach(dev); | |
2166 | ||
2167 | if(typhoon_stop_runtime(tp, WaitNoSleep) < 0) { | |
0bc88e4a | 2168 | netdev_err(dev, "unable to stop runtime\n"); |
1da177e4 LT |
2169 | goto need_resume; |
2170 | } | |
2171 | ||
2172 | typhoon_free_rx_rings(tp); | |
2173 | typhoon_init_rings(tp); | |
2174 | ||
2175 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { | |
0bc88e4a | 2176 | netdev_err(dev, "unable to boot sleep image\n"); |
1da177e4 LT |
2177 | goto need_resume; |
2178 | } | |
2179 | ||
2180 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_MAC_ADDRESS); | |
03a710ff AV |
2181 | xp_cmd.parm1 = cpu_to_le16(ntohs(*(__be16 *)&dev->dev_addr[0])); |
2182 | xp_cmd.parm2 = cpu_to_le32(ntohl(*(__be32 *)&dev->dev_addr[2])); | |
1da177e4 | 2183 | if(typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL) < 0) { |
0bc88e4a | 2184 | netdev_err(dev, "unable to set mac address in suspend\n"); |
1da177e4 LT |
2185 | goto need_resume; |
2186 | } | |
2187 | ||
2188 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_RX_FILTER); | |
2189 | xp_cmd.parm1 = TYPHOON_RX_FILTER_DIRECTED | TYPHOON_RX_FILTER_BROADCAST; | |
2190 | if(typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL) < 0) { | |
0bc88e4a | 2191 | netdev_err(dev, "unable to set rx filter in suspend\n"); |
1da177e4 LT |
2192 | goto need_resume; |
2193 | } | |
2194 | ||
2a569579 | 2195 | if(typhoon_sleep(tp, pci_choose_state(pdev, state), tp->wol_events) < 0) { |
0bc88e4a | 2196 | netdev_err(dev, "unable to put card to sleep\n"); |
1da177e4 LT |
2197 | goto need_resume; |
2198 | } | |
2199 | ||
2200 | return 0; | |
2201 | ||
2202 | need_resume: | |
2203 | typhoon_resume(pdev); | |
2204 | return -EBUSY; | |
2205 | } | |
1da177e4 LT |
2206 | #endif |
2207 | ||
21cf689b | 2208 | static int |
1da177e4 LT |
2209 | typhoon_test_mmio(struct pci_dev *pdev) |
2210 | { | |
2211 | void __iomem *ioaddr = pci_iomap(pdev, 1, 128); | |
2212 | int mode = 0; | |
2213 | u32 val; | |
2214 | ||
2215 | if(!ioaddr) | |
2216 | goto out; | |
2217 | ||
2218 | if(ioread32(ioaddr + TYPHOON_REG_STATUS) != | |
2219 | TYPHOON_STATUS_WAITING_FOR_HOST) | |
2220 | goto out_unmap; | |
2221 | ||
2222 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); | |
2223 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); | |
2224 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_ENABLE); | |
2225 | ||
2226 | /* Ok, see if we can change our interrupt status register by | |
2227 | * sending ourselves an interrupt. If so, then MMIO works. | |
2228 | * The 50usec delay is arbitrary -- it could probably be smaller. | |
2229 | */ | |
2230 | val = ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); | |
2231 | if((val & TYPHOON_INTR_SELF) == 0) { | |
2232 | iowrite32(1, ioaddr + TYPHOON_REG_SELF_INTERRUPT); | |
2233 | ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); | |
2234 | udelay(50); | |
2235 | val = ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); | |
2236 | if(val & TYPHOON_INTR_SELF) | |
2237 | mode = 1; | |
2238 | } | |
2239 | ||
2240 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); | |
2241 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); | |
2242 | iowrite32(TYPHOON_INTR_NONE, ioaddr + TYPHOON_REG_INTR_ENABLE); | |
2243 | ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); | |
2244 | ||
2245 | out_unmap: | |
2246 | pci_iounmap(pdev, ioaddr); | |
2247 | ||
2248 | out: | |
2249 | if(!mode) | |
0bc88e4a | 2250 | pr_info("%s: falling back to port IO\n", pci_name(pdev)); |
1da177e4 LT |
2251 | return mode; |
2252 | } | |
2253 | ||
8bdd5553 SH |
2254 | static const struct net_device_ops typhoon_netdev_ops = { |
2255 | .ndo_open = typhoon_open, | |
2256 | .ndo_stop = typhoon_close, | |
2257 | .ndo_start_xmit = typhoon_start_tx, | |
afc4b13d | 2258 | .ndo_set_rx_mode = typhoon_set_rx_mode, |
8bdd5553 SH |
2259 | .ndo_tx_timeout = typhoon_tx_timeout, |
2260 | .ndo_get_stats = typhoon_get_stats, | |
2261 | .ndo_validate_addr = eth_validate_addr, | |
b049aadc | 2262 | .ndo_set_mac_address = eth_mac_addr, |
8bdd5553 SH |
2263 | }; |
2264 | ||
21cf689b | 2265 | static int |
1da177e4 LT |
2266 | typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
2267 | { | |
1da177e4 LT |
2268 | struct net_device *dev; |
2269 | struct typhoon *tp; | |
2270 | int card_id = (int) ent->driver_data; | |
2271 | void __iomem *ioaddr; | |
2272 | void *shared; | |
2273 | dma_addr_t shared_dma; | |
2274 | struct cmd_desc xp_cmd; | |
2275 | struct resp_desc xp_resp[3]; | |
1da177e4 | 2276 | int err = 0; |
0bc88e4a | 2277 | const char *err_msg; |
1da177e4 LT |
2278 | |
2279 | dev = alloc_etherdev(sizeof(*tp)); | |
2280 | if(dev == NULL) { | |
0bc88e4a | 2281 | err_msg = "unable to alloc new net device"; |
1da177e4 LT |
2282 | err = -ENOMEM; |
2283 | goto error_out; | |
2284 | } | |
1da177e4 LT |
2285 | SET_NETDEV_DEV(dev, &pdev->dev); |
2286 | ||
2287 | err = pci_enable_device(pdev); | |
2288 | if(err < 0) { | |
0bc88e4a | 2289 | err_msg = "unable to enable device"; |
1da177e4 LT |
2290 | goto error_out_dev; |
2291 | } | |
2292 | ||
2293 | err = pci_set_mwi(pdev); | |
2294 | if(err < 0) { | |
0bc88e4a | 2295 | err_msg = "unable to set MWI"; |
1da177e4 LT |
2296 | goto error_out_disable; |
2297 | } | |
2298 | ||
284901a9 | 2299 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 | 2300 | if(err < 0) { |
0bc88e4a | 2301 | err_msg = "No usable DMA configuration"; |
1da177e4 LT |
2302 | goto error_out_mwi; |
2303 | } | |
2304 | ||
2305 | /* sanity checks on IO and MMIO BARs | |
2306 | */ | |
2307 | if(!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { | |
0bc88e4a | 2308 | err_msg = "region #1 not a PCI IO resource, aborting"; |
1da177e4 LT |
2309 | err = -ENODEV; |
2310 | goto error_out_mwi; | |
2311 | } | |
2312 | if(pci_resource_len(pdev, 0) < 128) { | |
0bc88e4a | 2313 | err_msg = "Invalid PCI IO region size, aborting"; |
1da177e4 LT |
2314 | err = -ENODEV; |
2315 | goto error_out_mwi; | |
2316 | } | |
2317 | if(!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { | |
0bc88e4a | 2318 | err_msg = "region #1 not a PCI MMIO resource, aborting"; |
1da177e4 LT |
2319 | err = -ENODEV; |
2320 | goto error_out_mwi; | |
2321 | } | |
2322 | if(pci_resource_len(pdev, 1) < 128) { | |
0bc88e4a | 2323 | err_msg = "Invalid PCI MMIO region size, aborting"; |
1da177e4 LT |
2324 | err = -ENODEV; |
2325 | goto error_out_mwi; | |
2326 | } | |
2327 | ||
0bc88e4a | 2328 | err = pci_request_regions(pdev, KBUILD_MODNAME); |
1da177e4 | 2329 | if(err < 0) { |
0bc88e4a | 2330 | err_msg = "could not request regions"; |
1da177e4 LT |
2331 | goto error_out_mwi; |
2332 | } | |
2333 | ||
2334 | /* map our registers | |
2335 | */ | |
2336 | if(use_mmio != 0 && use_mmio != 1) | |
2337 | use_mmio = typhoon_test_mmio(pdev); | |
2338 | ||
2339 | ioaddr = pci_iomap(pdev, use_mmio, 128); | |
2340 | if (!ioaddr) { | |
0bc88e4a | 2341 | err_msg = "cannot remap registers, aborting"; |
1da177e4 LT |
2342 | err = -EIO; |
2343 | goto error_out_regions; | |
2344 | } | |
2345 | ||
2346 | /* allocate pci dma space for rx and tx descriptor rings | |
2347 | */ | |
2348 | shared = pci_alloc_consistent(pdev, sizeof(struct typhoon_shared), | |
2349 | &shared_dma); | |
2350 | if(!shared) { | |
0bc88e4a | 2351 | err_msg = "could not allocate DMA memory"; |
1da177e4 LT |
2352 | err = -ENOMEM; |
2353 | goto error_out_remap; | |
2354 | } | |
2355 | ||
2356 | dev->irq = pdev->irq; | |
2357 | tp = netdev_priv(dev); | |
43d620c8 | 2358 | tp->shared = shared; |
1da177e4 LT |
2359 | tp->shared_dma = shared_dma; |
2360 | tp->pdev = pdev; | |
2361 | tp->tx_pdev = pdev; | |
2362 | tp->ioaddr = ioaddr; | |
2363 | tp->tx_ioaddr = ioaddr; | |
2364 | tp->dev = dev; | |
2365 | ||
2366 | /* Init sequence: | |
2367 | * 1) Reset the adapter to clear any bad juju | |
2368 | * 2) Reload the sleep image | |
2369 | * 3) Boot the sleep image | |
2370 | * 4) Get the hardware address. | |
2371 | * 5) Put the card to sleep. | |
2372 | */ | |
2373 | if (typhoon_reset(ioaddr, WaitSleep) < 0) { | |
0bc88e4a | 2374 | err_msg = "could not reset 3XP"; |
1da177e4 LT |
2375 | err = -EIO; |
2376 | goto error_out_dma; | |
2377 | } | |
2378 | ||
2379 | /* Now that we've reset the 3XP and are sure it's not going to | |
2380 | * write all over memory, enable bus mastering, and save our | |
2381 | * state for resuming after a suspend. | |
2382 | */ | |
2383 | pci_set_master(pdev); | |
2384 | pci_save_state(pdev); | |
2385 | ||
1da177e4 LT |
2386 | typhoon_init_interface(tp); |
2387 | typhoon_init_rings(tp); | |
2388 | ||
2389 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { | |
0bc88e4a | 2390 | err_msg = "cannot boot 3XP sleep image"; |
1da177e4 LT |
2391 | err = -EIO; |
2392 | goto error_out_reset; | |
2393 | } | |
2394 | ||
2395 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_MAC_ADDRESS); | |
2396 | if(typhoon_issue_command(tp, 1, &xp_cmd, 1, xp_resp) < 0) { | |
0bc88e4a | 2397 | err_msg = "cannot read MAC address"; |
1da177e4 LT |
2398 | err = -EIO; |
2399 | goto error_out_reset; | |
2400 | } | |
2401 | ||
03a710ff AV |
2402 | *(__be16 *)&dev->dev_addr[0] = htons(le16_to_cpu(xp_resp[0].parm1)); |
2403 | *(__be32 *)&dev->dev_addr[2] = htonl(le32_to_cpu(xp_resp[0].parm2)); | |
1da177e4 LT |
2404 | |
2405 | if(!is_valid_ether_addr(dev->dev_addr)) { | |
0bc88e4a | 2406 | err_msg = "Could not obtain valid ethernet address, aborting"; |
1da177e4 LT |
2407 | goto error_out_reset; |
2408 | } | |
2409 | ||
2410 | /* Read the Sleep Image version last, so the response is valid | |
2411 | * later when we print out the version reported. | |
2412 | */ | |
2413 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS); | |
2414 | if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) { | |
0bc88e4a | 2415 | err_msg = "Could not get Sleep Image version"; |
1da177e4 LT |
2416 | goto error_out_reset; |
2417 | } | |
2418 | ||
2419 | tp->capabilities = typhoon_card_info[card_id].capabilities; | |
2420 | tp->xcvr_select = TYPHOON_XCVR_AUTONEG; | |
2421 | ||
2422 | /* Typhoon 1.0 Sleep Images return one response descriptor to the | |
2423 | * READ_VERSIONS command. Those versions are OK after waking up | |
2424 | * from sleep without needing a reset. Typhoon 1.1+ Sleep Images | |
2425 | * seem to need a little extra help to get started. Since we don't | |
2426 | * know how to nudge it along, just kick it. | |
2427 | */ | |
2428 | if(xp_resp[0].numDesc != 0) | |
2429 | tp->capabilities |= TYPHOON_WAKEUP_NEEDS_RESET; | |
2430 | ||
2431 | if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) { | |
0bc88e4a | 2432 | err_msg = "cannot put adapter to sleep"; |
1da177e4 LT |
2433 | err = -EIO; |
2434 | goto error_out_reset; | |
2435 | } | |
2436 | ||
2437 | /* The chip-specific entries in the device structure. */ | |
8bdd5553 | 2438 | dev->netdev_ops = &typhoon_netdev_ops; |
bea3348e | 2439 | netif_napi_add(dev, &tp->napi, typhoon_poll, 16); |
1da177e4 | 2440 | dev->watchdog_timeo = TX_TIMEOUT; |
25805dcf | 2441 | |
7ad24ea4 | 2442 | dev->ethtool_ops = &typhoon_ethtool_ops; |
1da177e4 LT |
2443 | |
2444 | /* We can handle scatter gather, up to 16 entries, and | |
2445 | * we can do IP checksumming (only version 4, doh...) | |
86688a8f MM |
2446 | * |
2447 | * There's no way to turn off the RX VLAN offloading and stripping | |
2448 | * on the current 3XP firmware -- it does not respect the offload | |
2449 | * settings -- so we only allow the user to toggle the TX processing. | |
1da177e4 | 2450 | */ |
86688a8f | 2451 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | |
f646968f | 2452 | NETIF_F_HW_VLAN_CTAG_TX; |
86688a8f | 2453 | dev->features = dev->hw_features | |
f646968f | 2454 | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_RXCSUM; |
1da177e4 | 2455 | |
0bc88e4a JP |
2456 | if(register_netdev(dev) < 0) { |
2457 | err_msg = "unable to register netdev"; | |
1da177e4 | 2458 | goto error_out_reset; |
0bc88e4a | 2459 | } |
1da177e4 LT |
2460 | |
2461 | pci_set_drvdata(pdev, dev); | |
2462 | ||
0bc88e4a JP |
2463 | netdev_info(dev, "%s at %s 0x%llx, %pM\n", |
2464 | typhoon_card_info[card_id].name, | |
2465 | use_mmio ? "MMIO" : "IO", | |
2466 | (unsigned long long)pci_resource_start(pdev, use_mmio), | |
2467 | dev->dev_addr); | |
1da177e4 LT |
2468 | |
2469 | /* xp_resp still contains the response to the READ_VERSIONS command. | |
2470 | * For debugging, let the user know what version he has. | |
2471 | */ | |
2472 | if(xp_resp[0].numDesc == 0) { | |
2473 | /* This is the Typhoon 1.0 type Sleep Image, last 16 bits | |
2474 | * of version is Month/Day of build. | |
2475 | */ | |
2476 | u16 monthday = le32_to_cpu(xp_resp[0].parm2) & 0xffff; | |
0bc88e4a JP |
2477 | netdev_info(dev, "Typhoon 1.0 Sleep Image built %02u/%02u/2000\n", |
2478 | monthday >> 8, monthday & 0xff); | |
1da177e4 LT |
2479 | } else if(xp_resp[0].numDesc == 2) { |
2480 | /* This is the Typhoon 1.1+ type Sleep Image | |
2481 | */ | |
2482 | u32 sleep_ver = le32_to_cpu(xp_resp[0].parm2); | |
2483 | u8 *ver_string = (u8 *) &xp_resp[1]; | |
2484 | ver_string[25] = 0; | |
0bc88e4a JP |
2485 | netdev_info(dev, "Typhoon 1.1+ Sleep Image version %02x.%03x.%03x %s\n", |
2486 | sleep_ver >> 24, (sleep_ver >> 12) & 0xfff, | |
2487 | sleep_ver & 0xfff, ver_string); | |
1da177e4 | 2488 | } else { |
0bc88e4a JP |
2489 | netdev_warn(dev, "Unknown Sleep Image version (%u:%04x)\n", |
2490 | xp_resp[0].numDesc, le32_to_cpu(xp_resp[0].parm2)); | |
1da177e4 | 2491 | } |
6aa20a22 | 2492 | |
1da177e4 LT |
2493 | return 0; |
2494 | ||
2495 | error_out_reset: | |
2496 | typhoon_reset(ioaddr, NoWait); | |
2497 | ||
2498 | error_out_dma: | |
2499 | pci_free_consistent(pdev, sizeof(struct typhoon_shared), | |
2500 | shared, shared_dma); | |
2501 | error_out_remap: | |
2502 | pci_iounmap(pdev, ioaddr); | |
2503 | error_out_regions: | |
2504 | pci_release_regions(pdev); | |
2505 | error_out_mwi: | |
2506 | pci_clear_mwi(pdev); | |
2507 | error_out_disable: | |
2508 | pci_disable_device(pdev); | |
2509 | error_out_dev: | |
2510 | free_netdev(dev); | |
2511 | error_out: | |
0bc88e4a | 2512 | pr_err("%s: %s\n", pci_name(pdev), err_msg); |
1da177e4 LT |
2513 | return err; |
2514 | } | |
2515 | ||
21cf689b | 2516 | static void |
1da177e4 LT |
2517 | typhoon_remove_one(struct pci_dev *pdev) |
2518 | { | |
2519 | struct net_device *dev = pci_get_drvdata(pdev); | |
2520 | struct typhoon *tp = netdev_priv(dev); | |
2521 | ||
2522 | unregister_netdev(dev); | |
2523 | pci_set_power_state(pdev, PCI_D0); | |
2524 | pci_restore_state(pdev); | |
2525 | typhoon_reset(tp->ioaddr, NoWait); | |
2526 | pci_iounmap(pdev, tp->ioaddr); | |
2527 | pci_free_consistent(pdev, sizeof(struct typhoon_shared), | |
2528 | tp->shared, tp->shared_dma); | |
2529 | pci_release_regions(pdev); | |
2530 | pci_clear_mwi(pdev); | |
2531 | pci_disable_device(pdev); | |
1da177e4 LT |
2532 | free_netdev(dev); |
2533 | } | |
2534 | ||
2535 | static struct pci_driver typhoon_driver = { | |
0bc88e4a | 2536 | .name = KBUILD_MODNAME, |
1da177e4 LT |
2537 | .id_table = typhoon_pci_tbl, |
2538 | .probe = typhoon_init_one, | |
21cf689b | 2539 | .remove = typhoon_remove_one, |
1da177e4 LT |
2540 | #ifdef CONFIG_PM |
2541 | .suspend = typhoon_suspend, | |
2542 | .resume = typhoon_resume, | |
1da177e4 LT |
2543 | #endif |
2544 | }; | |
2545 | ||
2546 | static int __init | |
2547 | typhoon_init(void) | |
2548 | { | |
29917620 | 2549 | return pci_register_driver(&typhoon_driver); |
1da177e4 LT |
2550 | } |
2551 | ||
2552 | static void __exit | |
2553 | typhoon_cleanup(void) | |
2554 | { | |
b2cbf2e3 | 2555 | release_firmware(typhoon_fw); |
1da177e4 LT |
2556 | pci_unregister_driver(&typhoon_driver); |
2557 | } | |
2558 | ||
2559 | module_init(typhoon_init); | |
2560 | module_exit(typhoon_cleanup); |