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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Adaptec AAC series RAID controller driver
Alan Coxfa195af2008-10-27 15:16:36 +00003 * (c) Copyright 2001 Red Hat Inc.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
7 *
Mahesh Rajashekharae8b12f02011-03-17 02:10:32 -07008 * Copyright (c) 2000-2010 Adaptec, Inc.
9 * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; see the file COPYING. If not, write to
23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * Module Name:
26 * rx.c
27 *
28 * Abstract: Hardware miniport for Drawbridge specific hardware functions.
29 *
30 */
31
32#include <linux/kernel.h>
33#include <linux/init.h>
34#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include <linux/pci.h>
36#include <linux/spinlock.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include <linux/blkdev.h>
38#include <linux/delay.h>
39#include <linux/completion.h>
40#include <linux/time.h>
41#include <linux/interrupt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43#include <scsi/scsi_host.h>
44
45#include "aacraid.h"
46
Mark Haverkamp28713322007-01-23 14:59:20 -080047static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -070048{
49 struct aac_dev *dev = dev_id;
Mark Haverkamp28713322007-01-23 14:59:20 -080050 unsigned long bellbits;
51 u8 intstat = rx_readb(dev, MUnit.OISR);
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -070052
Mark Haverkamp28713322007-01-23 14:59:20 -080053 /*
54 * Read mask and invert because drawbridge is reversed.
55 * This allows us to only service interrupts that have
56 * been enabled.
57 * Check to see if this is our interrupt. If it isn't just return
58 */
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040059 if (likely(intstat & ~(dev->OIMR))) {
Mark Haverkamp28713322007-01-23 14:59:20 -080060 bellbits = rx_readl(dev, OutboundDoorbellReg);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040061 if (unlikely(bellbits & DoorBellPrintfReady)) {
Mark Haverkamp28713322007-01-23 14:59:20 -080062 aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
63 rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
64 rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
65 }
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040066 else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
Mark Haverkamp28713322007-01-23 14:59:20 -080067 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
68 aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
69 }
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040070 else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
Mark Haverkamp28713322007-01-23 14:59:20 -080071 rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
72 aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
73 }
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040074 else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
Mark Haverkamp28713322007-01-23 14:59:20 -080075 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
76 }
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040077 else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
Mark Haverkamp28713322007-01-23 14:59:20 -080078 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
79 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
80 }
81 return IRQ_HANDLED;
82 }
83 return IRQ_NONE;
84}
85
86static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
87{
Mahesh Rajashekharae8b12f02011-03-17 02:10:32 -070088 int isAif, isFastResponse, isSpecial;
Mark Haverkamp28713322007-01-23 14:59:20 -080089 struct aac_dev *dev = dev_id;
90 u32 Index = rx_readl(dev, MUnit.OutboundQueue);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040091 if (unlikely(Index == 0xFFFFFFFFL))
Mark Haverkamp28713322007-01-23 14:59:20 -080092 Index = rx_readl(dev, MUnit.OutboundQueue);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -040093 if (likely(Index != 0xFFFFFFFFL)) {
Mark Haverkamp28713322007-01-23 14:59:20 -080094 do {
Mahesh Rajashekharae8b12f02011-03-17 02:10:32 -070095 isAif = isFastResponse = isSpecial = 0;
96 if (Index & 0x00000002L) {
97 isAif = 1;
98 if (Index == 0xFFFFFFFEL)
99 isSpecial = 1;
100 Index &= ~0x00000002L;
101 } else {
102 if (Index & 0x00000001L)
103 isFastResponse = 1;
104 Index >>= 2;
105 }
106 if (!isSpecial) {
107 if (unlikely(aac_intr_normal(dev,
108 Index, isAif,
109 isFastResponse, NULL))) {
110 rx_writel(dev,
111 MUnit.OutboundQueue,
112 Index);
113 rx_writel(dev,
114 MUnit.ODR,
115 DoorBellAdapterNormRespReady);
116 }
Mark Haverkamp28713322007-01-23 14:59:20 -0800117 }
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700118 Index = rx_readl(dev, MUnit.OutboundQueue);
Mark Haverkamp28713322007-01-23 14:59:20 -0800119 } while (Index != 0xFFFFFFFFL);
120 return IRQ_HANDLED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 }
122 return IRQ_NONE;
123}
124
125/**
Mark Haverkampbd1aac82005-08-03 15:39:01 -0700126 * aac_rx_disable_interrupt - Disable interrupts
127 * @dev: Adapter
128 */
129
130static void aac_rx_disable_interrupt(struct aac_dev *dev)
131{
132 rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
133}
134
135/**
Mark Haverkamp28713322007-01-23 14:59:20 -0800136 * aac_rx_enable_interrupt_producer - Enable interrupts
137 * @dev: Adapter
138 */
139
140static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
141{
142 rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
143}
144
145/**
146 * aac_rx_enable_interrupt_message - Enable interrupts
147 * @dev: Adapter
148 */
149
150static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
151{
152 rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
153}
154
155/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 * rx_sync_cmd - send a command and wait
157 * @dev: Adapter
158 * @command: Command to execute
159 * @p1: first parameter
160 * @ret: adapter status
161 *
162 * This routine will send a synchronous command to the adapter and wait
163 * for its completion.
164 */
165
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700166static int rx_sync_cmd(struct aac_dev *dev, u32 command,
167 u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
168 u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169{
170 unsigned long start;
171 int ok;
172 /*
173 * Write the command into Mailbox 0
174 */
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700175 writel(command, &dev->IndexRegs->Mailbox[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 /*
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700177 * Write the parameters into Mailboxes 1 - 6
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 */
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700179 writel(p1, &dev->IndexRegs->Mailbox[1]);
180 writel(p2, &dev->IndexRegs->Mailbox[2]);
181 writel(p3, &dev->IndexRegs->Mailbox[3]);
182 writel(p4, &dev->IndexRegs->Mailbox[4]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 /*
184 * Clear the synch command doorbell to start on a clean slate.
185 */
186 rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
187 /*
188 * Disable doorbell interrupts
189 */
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700190 rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 /*
192 * Force the completion of the mask register write before issuing
193 * the interrupt.
194 */
195 rx_readb (dev, MUnit.OIMR);
196 /*
197 * Signal that there is a new synch command
198 */
199 rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
200
201 ok = 0;
202 start = jiffies;
203
204 /*
205 * Wait up to 30 seconds
206 */
207 while (time_before(jiffies, start+30*HZ))
208 {
209 udelay(5); /* Delay 5 microseconds to let Mon960 get info. */
210 /*
211 * Mon960 will set doorbell0 bit when it has completed the command.
212 */
213 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
214 /*
215 * Clear the doorbell.
216 */
217 rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
218 ok = 1;
219 break;
220 }
221 /*
222 * Yield the processor in case we are slow
223 */
Mark Haverkamp1241f352006-03-27 09:44:23 -0800224 msleep(1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 }
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400226 if (unlikely(ok != 1)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 /*
228 * Restore interrupt mask even though we timed out
229 */
Mark Haverkamp28713322007-01-23 14:59:20 -0800230 aac_adapter_enable_int(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 return -ETIMEDOUT;
232 }
233 /*
234 * Pull the synch status from Mailbox 0.
235 */
236 if (status)
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700237 *status = readl(&dev->IndexRegs->Mailbox[0]);
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700238 if (r1)
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700239 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700240 if (r2)
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700241 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700242 if (r3)
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700243 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700244 if (r4)
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700245 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 /*
247 * Clear the synch command doorbell.
248 */
249 rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
250 /*
251 * Restore interrupt mask
252 */
Mark Haverkamp28713322007-01-23 14:59:20 -0800253 aac_adapter_enable_int(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 return 0;
255
256}
257
258/**
259 * aac_rx_interrupt_adapter - interrupt adapter
260 * @dev: Adapter
261 *
262 * Send an interrupt to the i960 and breakpoint it.
263 */
264
265static void aac_rx_interrupt_adapter(struct aac_dev *dev)
266{
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700267 rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268}
269
270/**
271 * aac_rx_notify_adapter - send an event to the adapter
272 * @dev: Adapter
273 * @event: Event to send
274 *
275 * Notify the i960 that something it probably cares about has
276 * happened.
277 */
278
279static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
280{
281 switch (event) {
282
283 case AdapNormCmdQue:
284 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
285 break;
286 case HostNormRespNotFull:
287 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
288 break;
289 case AdapNormRespQue:
290 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
291 break;
292 case HostNormCmdNotFull:
293 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
294 break;
295 case HostShutdown:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 break;
297 case FastIo:
298 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
299 break;
300 case AdapPrintfDone:
301 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
302 break;
303 default:
304 BUG();
305 break;
306 }
307}
308
309/**
310 * aac_rx_start_adapter - activate adapter
311 * @dev: Adapter
312 *
313 * Start up processing on an i960 based AAC adapter
314 */
315
Adrian Bunk9695a252007-03-26 21:59:35 -0800316static void aac_rx_start_adapter(struct aac_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 struct aac_init *init;
319
320 init = dev->init;
321 init->HostElapsedSeconds = cpu_to_le32(get_seconds());
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 // We can only use a 32 bit address here
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700323 rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
324 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325}
326
327/**
328 * aac_rx_check_health
329 * @dev: device to check if healthy
330 *
331 * Will attempt to determine if the specified adapter is alive and
332 * capable of handling requests, returning 0 if alive.
333 */
334static int aac_rx_check_health(struct aac_dev *dev)
335{
336 u32 status = rx_readl(dev, MUnit.OMRx[0]);
337
338 /*
339 * Check to see if the board failed any self tests.
340 */
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400341 if (unlikely(status & SELF_TEST_FAILED))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 return -1;
343 /*
344 * Check to see if the board panic'd.
345 */
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400346 if (unlikely(status & KERNEL_PANIC)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 char * buffer;
348 struct POSTSTATUS {
Mark Haverkamp 56b58712005-04-27 06:05:51 -0700349 __le32 Post_Command;
350 __le32 Post_Address;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 } * post;
352 dma_addr_t paddr, baddr;
353 int ret;
354
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400355 if (likely((status & 0xFF000000L) == 0xBC000000L))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 return (status >> 16) & 0xFF;
357 buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
358 ret = -2;
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400359 if (unlikely(buffer == NULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 return ret;
361 post = pci_alloc_consistent(dev->pdev,
362 sizeof(struct POSTSTATUS), &paddr);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400363 if (unlikely(post == NULL)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 pci_free_consistent(dev->pdev, 512, buffer, baddr);
365 return ret;
366 }
367 memset(buffer, 0, 512);
368 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
369 post->Post_Address = cpu_to_le32(baddr);
370 rx_writel(dev, MUnit.IMRx[0], paddr);
Mark Haverkamp 7c00ffa2005-05-16 18:28:42 -0700371 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
372 NULL, NULL, NULL, NULL, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
374 post, paddr);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400375 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
Andy Shevchenkoecc30992010-08-10 18:01:27 -0700376 ret = (hex_to_bin(buffer[2]) << 4) +
377 hex_to_bin(buffer[3]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 }
379 pci_free_consistent(dev->pdev, 512, buffer, baddr);
380 return ret;
381 }
382 /*
383 * Wait for the adapter to be up and running.
384 */
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400385 if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 return -3;
387 /*
388 * Everything is OK
389 */
390 return 0;
391}
392
393/**
Mark Haverkamp28713322007-01-23 14:59:20 -0800394 * aac_rx_deliver_producer
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700395 * @fib: fib to issue
396 *
397 * Will send a fib, returning 0 if successful.
398 */
Salyzyn, Mark2ab01ef2007-05-15 09:14:21 -0400399int aac_rx_deliver_producer(struct fib * fib)
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700400{
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700401 struct aac_dev *dev = fib->dev;
Mark Haverkamp28713322007-01-23 14:59:20 -0800402 struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700403 u32 Index;
Mark Haverkamp28713322007-01-23 14:59:20 -0800404 unsigned long nointr = 0;
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700405
Mark Haverkampa8166a52007-03-15 10:26:22 -0700406 aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
Mark Haverkamp28713322007-01-23 14:59:20 -0800407
Mahesh Rajashekharaef616232015-03-26 10:41:30 -0400408 atomic_inc(&q->numpending);
Mark Haverkamp28713322007-01-23 14:59:20 -0800409 *(q->headers.producer) = cpu_to_le32(Index + 1);
Mark Haverkamp28713322007-01-23 14:59:20 -0800410 if (!(nointr & aac_config.irq_mod))
411 aac_adapter_notify(dev, AdapNormCmdQueue);
412
413 return 0;
414}
415
416/**
417 * aac_rx_deliver_message
418 * @fib: fib to issue
419 *
420 * Will send a fib, returning 0 if successful.
421 */
422static int aac_rx_deliver_message(struct fib * fib)
423{
424 struct aac_dev *dev = fib->dev;
425 struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
Mark Haverkamp28713322007-01-23 14:59:20 -0800426 u32 Index;
427 u64 addr;
428 volatile void __iomem *device;
429
430 unsigned long count = 10000000L; /* 50 seconds */
Mahesh Rajashekharaef616232015-03-26 10:41:30 -0400431 atomic_inc(&q->numpending);
Mark Haverkamp28713322007-01-23 14:59:20 -0800432 for(;;) {
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700433 Index = rx_readl(dev, MUnit.InboundQueue);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400434 if (unlikely(Index == 0xFFFFFFFFL))
Mark Haverkamp28713322007-01-23 14:59:20 -0800435 Index = rx_readl(dev, MUnit.InboundQueue);
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400436 if (likely(Index != 0xFFFFFFFFL))
Mark Haverkamp28713322007-01-23 14:59:20 -0800437 break;
438 if (--count == 0) {
Mahesh Rajashekharaef616232015-03-26 10:41:30 -0400439 atomic_dec(&q->numpending);
Mark Haverkamp28713322007-01-23 14:59:20 -0800440 return -ETIMEDOUT;
441 }
442 udelay(5);
443 }
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700444 device = dev->base + Index;
Mark Haverkamp28713322007-01-23 14:59:20 -0800445 addr = fib->hw_fib_pa;
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700446 writel((u32)(addr & 0xffffffff), device);
447 device += sizeof(u32);
448 writel((u32)(addr >> 32), device);
449 device += sizeof(u32);
Mark Haverkampa8166a52007-03-15 10:26:22 -0700450 writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700451 rx_writel(dev, MUnit.InboundQueue, Index);
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700452 return 0;
453}
454
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700455/**
456 * aac_rx_ioremap
457 * @size: mapping resize request
458 *
459 */
460static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
461{
462 if (!size) {
463 iounmap(dev->regs.rx);
464 return 0;
465 }
Ben Collinsff087842012-06-11 14:05:02 -0400466 dev->base = dev->regs.rx = ioremap(dev->base_start, size);
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700467 if (dev->base == NULL)
468 return -1;
469 dev->IndexRegs = &dev->regs.rx->IndexRegs;
470 return 0;
471}
472
Mark Haverkamp84188522007-03-15 10:26:05 -0700473static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
Mark Haverkamp8c23cd742006-08-08 08:52:14 -0700474{
Mahesh Rajashekhara6e40e5f2014-01-13 13:50:30 +0530475 u32 var = 0;
Mark Haverkamp8c23cd742006-08-08 08:52:14 -0700476
Salyzyn, Mark29c97682007-06-12 09:33:54 -0400477 if (!(dev->supplement_adapter_info.SupportedOptions2 &
Salyzyn, Marka3940da2008-01-08 12:48:25 -0800478 AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
Salyzyn, Mark29c97682007-06-12 09:33:54 -0400479 if (bled)
480 printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
481 dev->name, dev->id, bled);
482 else {
483 bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
484 0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
Salyzyn, Mark9859c1a2007-07-27 10:29:26 -0400485 if (!bled && (var != 0x00000001) && (var != 0x3803000F))
Salyzyn, Mark29c97682007-06-12 09:33:54 -0400486 bled = -EINVAL;
487 }
488 if (bled && (bled != -ETIMEDOUT))
489 bled = aac_adapter_sync_cmd(dev, IOP_RESET,
490 0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
Mark Haverkamp8c23cd742006-08-08 08:52:14 -0700491
Salyzyn, Mark29c97682007-06-12 09:33:54 -0400492 if (bled && (bled != -ETIMEDOUT))
493 return -EINVAL;
494 }
Mahesh Rajashekhara6e40e5f2014-01-13 13:50:30 +0530495 if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
Mark Haverkamp84188522007-03-15 10:26:05 -0700496 rx_writel(dev, MUnit.reserved2, 3);
497 msleep(5000); /* Delay 5 seconds */
498 var = 0x00000001;
499 }
Mahesh Rajashekhara6e40e5f2014-01-13 13:50:30 +0530500 if (bled && (var != 0x00000001))
Mark Haverkamp84188522007-03-15 10:26:05 -0700501 return -EINVAL;
Mahesh Rajashekhara6e40e5f2014-01-13 13:50:30 +0530502 ssleep(5);
Mark Haverkamp8c23cd742006-08-08 08:52:14 -0700503 if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
Mark Haverkamp84188522007-03-15 10:26:05 -0700504 return -ENODEV;
Salyzyn, Mark1208bab2007-05-22 09:32:29 -0400505 if (startup_timeout < 300)
506 startup_timeout = 300;
Mark Haverkamp8c23cd742006-08-08 08:52:14 -0700507 return 0;
508}
509
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700510/**
Mark Haverkamp28713322007-01-23 14:59:20 -0800511 * aac_rx_select_comm - Select communications method
512 * @dev: Adapter
513 * @comm: communications method
514 */
515
516int aac_rx_select_comm(struct aac_dev *dev, int comm)
517{
518 switch (comm) {
519 case AAC_COMM_PRODUCER:
520 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
521 dev->a_ops.adapter_intr = aac_rx_intr_producer;
522 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
523 break;
524 case AAC_COMM_MESSAGE:
525 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
526 dev->a_ops.adapter_intr = aac_rx_intr_message;
527 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
528 break;
529 default:
530 return 1;
531 }
532 return 0;
533}
534
535/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 * aac_rx_init - initialize an i960 based AAC card
537 * @dev: device to configure
538 *
539 * Allocate and set up resources for the i960 based AAC variants. The
540 * device_interface in the commregion will be allocated and linked
541 * to the comm region.
542 */
543
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700544int _aac_rx_init(struct aac_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545{
546 unsigned long start;
547 unsigned long status;
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400548 int restart = 0;
Salyzyn, Mark912d4e82007-03-26 09:21:14 -0400549 int instance = dev->id;
550 const char * name = dev->name;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700552 if (aac_adapter_ioremap(dev, dev->base_size)) {
553 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
554 goto error_iounmap;
555 }
556
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400557 /* Failure to reset here is an option ... */
Salyzyn, Marka5694ec2007-04-30 13:22:24 -0400558 dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
559 dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400560 dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
Salyzyn, Mark1208bab2007-05-22 09:32:29 -0400561 if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400562 !aac_rx_restart_adapter(dev, 0))
Salyzyn, Markf8583172007-10-30 15:50:49 -0400563 /* Make sure the Hardware FIFO is empty */
564 while ((++restart < 512) &&
565 (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 /*
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700567 * Check to see if the board panic'd while booting.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 */
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700569 status = rx_readl(dev, MUnit.OMRx[0]);
Mark Haverkamp84188522007-03-15 10:26:05 -0700570 if (status & KERNEL_PANIC) {
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400571 if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
Mark Haverkamp8c23cd742006-08-08 08:52:14 -0700572 goto error_iounmap;
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400573 ++restart;
Mark Haverkamp84188522007-03-15 10:26:05 -0700574 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 /*
576 * Check to see if the board failed any self tests.
577 */
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700578 status = rx_readl(dev, MUnit.OMRx[0]);
579 if (status & SELF_TEST_FAILED) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
581 goto error_iounmap;
582 }
583 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 * Check to see if the monitor panic'd while booting.
585 */
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700586 if (status & MONITOR_PANIC) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
588 goto error_iounmap;
589 }
590 start = jiffies;
591 /*
592 * Wait for the adapter to be up and running. Wait up to 3 minutes
593 */
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700594 while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 {
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400596 if ((restart &&
597 (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
598 time_after(jiffies, start+HZ*startup_timeout)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599 printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
600 dev->name, instance, status);
601 goto error_iounmap;
602 }
Salyzyn, Mark18a65982007-03-30 10:30:48 -0400603 if (!restart &&
604 ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
605 time_after(jiffies, start + HZ *
606 ((startup_timeout > 60)
607 ? (startup_timeout - 60)
608 : (startup_timeout / 2))))) {
609 if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
610 start = jiffies;
611 ++restart;
612 }
Mark Haverkamp404d9a92006-05-10 09:12:48 -0700613 msleep(1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 }
Salyzyn, Mark29c97682007-06-12 09:33:54 -0400615 if (restart && aac_commit)
Salyzyn, Mark1208bab2007-05-22 09:32:29 -0400616 aac_commit = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617 /*
Mark Haverkamp28713322007-01-23 14:59:20 -0800618 * Fill in the common function dispatch table.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 */
620 dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
Mark Haverkampbd1aac82005-08-03 15:39:01 -0700621 dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 dev->a_ops.adapter_notify = aac_rx_notify_adapter;
623 dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
624 dev->a_ops.adapter_check_health = aac_rx_check_health;
Mark Haverkamp84188522007-03-15 10:26:05 -0700625 dev->a_ops.adapter_restart = aac_rx_restart_adapter;
Mahesh Rajashekharade665f22015-08-28 06:38:34 -0400626 dev->a_ops.adapter_start = aac_rx_start_adapter;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627
Mark Haverkampbd1aac82005-08-03 15:39:01 -0700628 /*
629 * First clear out all interrupts. Then enable the one's that we
630 * can handle.
631 */
Mark Haverkamp28713322007-01-23 14:59:20 -0800632 aac_adapter_comm(dev, AAC_COMM_PRODUCER);
633 aac_adapter_disable_int(dev);
Mark Haverkampbd1aac82005-08-03 15:39:01 -0700634 rx_writel(dev, MUnit.ODR, 0xffffffff);
Mark Haverkamp28713322007-01-23 14:59:20 -0800635 aac_adapter_enable_int(dev);
Mark Haverkampbd1aac82005-08-03 15:39:01 -0700636
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 if (aac_init_adapter(dev) == NULL)
Mark Haverkamp28713322007-01-23 14:59:20 -0800638 goto error_iounmap;
639 aac_adapter_comm(dev, dev->comm_interface);
Mahesh Rajashekhara11604612012-02-08 22:51:04 -0800640 dev->sync_mode = 0; /* sync. mode not supported */
Salyzyn, Mark8ef22242008-02-08 05:48:22 -0800641 dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
642 if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
Michael Opdenacker4909cc22014-03-05 06:09:41 +0100643 IRQF_SHARED, "aacraid", dev) < 0) {
Salyzyn, Mark8ef22242008-02-08 05:48:22 -0800644 if (dev->msi)
645 pci_disable_msi(dev->pdev);
Mark Haverkamp28713322007-01-23 14:59:20 -0800646 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
647 name, instance);
648 goto error_iounmap;
649 }
Ben Collinsff087842012-06-11 14:05:02 -0400650 dev->dbg_base = dev->base_start;
Mahesh Rajashekharae8b12f02011-03-17 02:10:32 -0700651 dev->dbg_base_mapped = dev->base;
652 dev->dbg_size = dev->base_size;
653
Mark Haverkamp28713322007-01-23 14:59:20 -0800654 aac_adapter_enable_int(dev);
655 /*
656 * Tell the adapter that all is configured, and it can
657 * start accepting requests
658 */
659 aac_rx_start_adapter(dev);
Mark Haverkamp8e0c5eb2005-10-24 10:52:22 -0700660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661 return 0;
662
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663error_iounmap:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664
665 return -1;
666}
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700667
668int aac_rx_init(struct aac_dev *dev)
669{
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700670 /*
671 * Fill in the function dispatch table.
672 */
673 dev->a_ops.adapter_ioremap = aac_rx_ioremap;
Mark Haverkamp28713322007-01-23 14:59:20 -0800674 dev->a_ops.adapter_comm = aac_rx_select_comm;
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700675
Mark Haverkamp28713322007-01-23 14:59:20 -0800676 return _aac_rx_init(dev);
Mark Haverkamp76a7f8f2006-09-19 09:00:02 -0700677}