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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* qlogicpti.c: Performance Technologies QlogicISP sbus card driver. |
3 | * | |
5dc2536b | 4 | * Copyright (C) 1996, 2006, 2008 David S. Miller (davem@davemloft.net) |
1da177e4 LT |
5 | * |
6 | * A lot of this driver was directly stolen from Erik H. Moe's PCI | |
7 | * Qlogic ISP driver. Mucho kudos to him for this code. | |
8 | * | |
9 | * An even bigger kudos to John Grana at Performance Technologies | |
10 | * for providing me with the hardware to write this driver, you rule | |
11 | * John you really do. | |
12 | * | |
13 | * May, 2, 1997: Added support for QLGC,isp --jj | |
14 | */ | |
15 | ||
16 | #include <linux/kernel.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/types.h> | |
19 | #include <linux/string.h> | |
5a0e3ad6 | 20 | #include <linux/gfp.h> |
1da177e4 LT |
21 | #include <linux/blkdev.h> |
22 | #include <linux/proc_fs.h> | |
23 | #include <linux/stat.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/spinlock.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/module.h> | |
60c904ae | 28 | #include <linux/jiffies.h> |
738f2b7b | 29 | #include <linux/dma-mapping.h> |
5dc2536b DM |
30 | #include <linux/of.h> |
31 | #include <linux/of_device.h> | |
f894e74d | 32 | #include <linux/firmware.h> |
1da177e4 LT |
33 | |
34 | #include <asm/byteorder.h> | |
35 | ||
36 | #include "qlogicpti.h" | |
37 | ||
1da177e4 | 38 | #include <asm/dma.h> |
1da177e4 LT |
39 | #include <asm/ptrace.h> |
40 | #include <asm/pgtable.h> | |
41 | #include <asm/oplib.h> | |
42 | #include <asm/io.h> | |
43 | #include <asm/irq.h> | |
44 | ||
45 | #include <scsi/scsi.h> | |
46 | #include <scsi/scsi_cmnd.h> | |
47 | #include <scsi/scsi_device.h> | |
48 | #include <scsi/scsi_eh.h> | |
1da177e4 LT |
49 | #include <scsi/scsi_tcq.h> |
50 | #include <scsi/scsi_host.h> | |
51 | ||
1da177e4 LT |
52 | #define MAX_TARGETS 16 |
53 | #define MAX_LUNS 8 /* 32 for 1.31 F/W */ | |
54 | ||
55 | #define DEFAULT_LOOP_COUNT 10000 | |
56 | ||
1da177e4 LT |
57 | static struct qlogicpti *qptichain = NULL; |
58 | static DEFINE_SPINLOCK(qptichain_lock); | |
1da177e4 LT |
59 | |
60 | #define PACKB(a, b) (((a)<<4)|(b)) | |
61 | ||
62 | static const u_char mbox_param[] = { | |
63 | PACKB(1, 1), /* MBOX_NO_OP */ | |
64 | PACKB(5, 5), /* MBOX_LOAD_RAM */ | |
65 | PACKB(2, 0), /* MBOX_EXEC_FIRMWARE */ | |
66 | PACKB(5, 5), /* MBOX_DUMP_RAM */ | |
67 | PACKB(3, 3), /* MBOX_WRITE_RAM_WORD */ | |
68 | PACKB(2, 3), /* MBOX_READ_RAM_WORD */ | |
69 | PACKB(6, 6), /* MBOX_MAILBOX_REG_TEST */ | |
70 | PACKB(2, 3), /* MBOX_VERIFY_CHECKSUM */ | |
71 | PACKB(1, 3), /* MBOX_ABOUT_FIRMWARE */ | |
72 | PACKB(0, 0), /* 0x0009 */ | |
73 | PACKB(0, 0), /* 0x000a */ | |
74 | PACKB(0, 0), /* 0x000b */ | |
75 | PACKB(0, 0), /* 0x000c */ | |
76 | PACKB(0, 0), /* 0x000d */ | |
77 | PACKB(1, 2), /* MBOX_CHECK_FIRMWARE */ | |
78 | PACKB(0, 0), /* 0x000f */ | |
79 | PACKB(5, 5), /* MBOX_INIT_REQ_QUEUE */ | |
80 | PACKB(6, 6), /* MBOX_INIT_RES_QUEUE */ | |
81 | PACKB(4, 4), /* MBOX_EXECUTE_IOCB */ | |
82 | PACKB(2, 2), /* MBOX_WAKE_UP */ | |
83 | PACKB(1, 6), /* MBOX_STOP_FIRMWARE */ | |
84 | PACKB(4, 4), /* MBOX_ABORT */ | |
85 | PACKB(2, 2), /* MBOX_ABORT_DEVICE */ | |
86 | PACKB(3, 3), /* MBOX_ABORT_TARGET */ | |
87 | PACKB(2, 2), /* MBOX_BUS_RESET */ | |
88 | PACKB(2, 3), /* MBOX_STOP_QUEUE */ | |
89 | PACKB(2, 3), /* MBOX_START_QUEUE */ | |
90 | PACKB(2, 3), /* MBOX_SINGLE_STEP_QUEUE */ | |
91 | PACKB(2, 3), /* MBOX_ABORT_QUEUE */ | |
92 | PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_STATUS */ | |
93 | PACKB(0, 0), /* 0x001e */ | |
94 | PACKB(1, 3), /* MBOX_GET_FIRMWARE_STATUS */ | |
95 | PACKB(1, 2), /* MBOX_GET_INIT_SCSI_ID */ | |
96 | PACKB(1, 2), /* MBOX_GET_SELECT_TIMEOUT */ | |
97 | PACKB(1, 3), /* MBOX_GET_RETRY_COUNT */ | |
98 | PACKB(1, 2), /* MBOX_GET_TAG_AGE_LIMIT */ | |
99 | PACKB(1, 2), /* MBOX_GET_CLOCK_RATE */ | |
100 | PACKB(1, 2), /* MBOX_GET_ACT_NEG_STATE */ | |
101 | PACKB(1, 2), /* MBOX_GET_ASYNC_DATA_SETUP_TIME */ | |
102 | PACKB(1, 3), /* MBOX_GET_SBUS_PARAMS */ | |
103 | PACKB(2, 4), /* MBOX_GET_TARGET_PARAMS */ | |
104 | PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_PARAMS */ | |
105 | PACKB(0, 0), /* 0x002a */ | |
106 | PACKB(0, 0), /* 0x002b */ | |
107 | PACKB(0, 0), /* 0x002c */ | |
108 | PACKB(0, 0), /* 0x002d */ | |
109 | PACKB(0, 0), /* 0x002e */ | |
110 | PACKB(0, 0), /* 0x002f */ | |
111 | PACKB(2, 2), /* MBOX_SET_INIT_SCSI_ID */ | |
112 | PACKB(2, 2), /* MBOX_SET_SELECT_TIMEOUT */ | |
113 | PACKB(3, 3), /* MBOX_SET_RETRY_COUNT */ | |
114 | PACKB(2, 2), /* MBOX_SET_TAG_AGE_LIMIT */ | |
115 | PACKB(2, 2), /* MBOX_SET_CLOCK_RATE */ | |
116 | PACKB(2, 2), /* MBOX_SET_ACTIVE_NEG_STATE */ | |
117 | PACKB(2, 2), /* MBOX_SET_ASYNC_DATA_SETUP_TIME */ | |
118 | PACKB(3, 3), /* MBOX_SET_SBUS_CONTROL_PARAMS */ | |
119 | PACKB(4, 4), /* MBOX_SET_TARGET_PARAMS */ | |
120 | PACKB(4, 4), /* MBOX_SET_DEV_QUEUE_PARAMS */ | |
121 | PACKB(0, 0), /* 0x003a */ | |
122 | PACKB(0, 0), /* 0x003b */ | |
123 | PACKB(0, 0), /* 0x003c */ | |
124 | PACKB(0, 0), /* 0x003d */ | |
125 | PACKB(0, 0), /* 0x003e */ | |
126 | PACKB(0, 0), /* 0x003f */ | |
127 | PACKB(0, 0), /* 0x0040 */ | |
128 | PACKB(0, 0), /* 0x0041 */ | |
129 | PACKB(0, 0) /* 0x0042 */ | |
130 | }; | |
131 | ||
6391a113 | 132 | #define MAX_MBOX_COMMAND ARRAY_SIZE(mbox_param) |
1da177e4 LT |
133 | |
134 | /* queue length's _must_ be power of two: */ | |
135 | #define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql)) | |
136 | #define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \ | |
137 | QLOGICPTI_REQ_QUEUE_LEN) | |
138 | #define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN) | |
139 | ||
140 | static inline void qlogicpti_enable_irqs(struct qlogicpti *qpti) | |
141 | { | |
142 | sbus_writew(SBUS_CTRL_ERIRQ | SBUS_CTRL_GENAB, | |
143 | qpti->qregs + SBUS_CTRL); | |
144 | } | |
145 | ||
146 | static inline void qlogicpti_disable_irqs(struct qlogicpti *qpti) | |
147 | { | |
148 | sbus_writew(0, qpti->qregs + SBUS_CTRL); | |
149 | } | |
150 | ||
151 | static inline void set_sbus_cfg1(struct qlogicpti *qpti) | |
152 | { | |
153 | u16 val; | |
154 | u8 bursts = qpti->bursts; | |
155 | ||
156 | #if 0 /* It appears that at least PTI cards do not support | |
157 | * 64-byte bursts and that setting the B64 bit actually | |
158 | * is a nop and the chip ends up using the smallest burst | |
159 | * size. -DaveM | |
160 | */ | |
63237eeb | 161 | if (sbus_can_burst64() && (bursts & DMA_BURST64)) { |
1da177e4 LT |
162 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B64); |
163 | } else | |
164 | #endif | |
165 | if (bursts & DMA_BURST32) { | |
166 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B32); | |
167 | } else if (bursts & DMA_BURST16) { | |
168 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B16); | |
169 | } else if (bursts & DMA_BURST8) { | |
170 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B8); | |
171 | } else { | |
172 | val = 0; /* No sbus bursts for you... */ | |
173 | } | |
174 | sbus_writew(val, qpti->qregs + SBUS_CFG1); | |
175 | } | |
176 | ||
177 | static int qlogicpti_mbox_command(struct qlogicpti *qpti, u_short param[], int force) | |
178 | { | |
179 | int loop_count; | |
180 | u16 tmp; | |
181 | ||
182 | if (mbox_param[param[0]] == 0) | |
183 | return 1; | |
184 | ||
185 | /* Set SBUS semaphore. */ | |
186 | tmp = sbus_readw(qpti->qregs + SBUS_SEMAPHORE); | |
187 | tmp |= SBUS_SEMAPHORE_LCK; | |
188 | sbus_writew(tmp, qpti->qregs + SBUS_SEMAPHORE); | |
189 | ||
190 | /* Wait for host IRQ bit to clear. */ | |
191 | loop_count = DEFAULT_LOOP_COUNT; | |
192 | while (--loop_count && (sbus_readw(qpti->qregs + HCCTRL) & HCCTRL_HIRQ)) { | |
193 | barrier(); | |
194 | cpu_relax(); | |
195 | } | |
196 | if (!loop_count) | |
585a8a59 MF |
197 | printk(KERN_EMERG "qlogicpti%d: mbox_command loop timeout #1\n", |
198 | qpti->qpti_id); | |
1da177e4 LT |
199 | |
200 | /* Write mailbox command registers. */ | |
201 | switch (mbox_param[param[0]] >> 4) { | |
202 | case 6: sbus_writew(param[5], qpti->qregs + MBOX5); | |
6d44c692 | 203 | /* Fall through */ |
1da177e4 | 204 | case 5: sbus_writew(param[4], qpti->qregs + MBOX4); |
6d44c692 | 205 | /* Fall through */ |
1da177e4 | 206 | case 4: sbus_writew(param[3], qpti->qregs + MBOX3); |
6d44c692 | 207 | /* Fall through */ |
1da177e4 | 208 | case 3: sbus_writew(param[2], qpti->qregs + MBOX2); |
6d44c692 | 209 | /* Fall through */ |
1da177e4 | 210 | case 2: sbus_writew(param[1], qpti->qregs + MBOX1); |
6d44c692 | 211 | /* Fall through */ |
1da177e4 LT |
212 | case 1: sbus_writew(param[0], qpti->qregs + MBOX0); |
213 | } | |
214 | ||
215 | /* Clear RISC interrupt. */ | |
216 | tmp = sbus_readw(qpti->qregs + HCCTRL); | |
217 | tmp |= HCCTRL_CRIRQ; | |
218 | sbus_writew(tmp, qpti->qregs + HCCTRL); | |
219 | ||
220 | /* Clear SBUS semaphore. */ | |
221 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); | |
222 | ||
223 | /* Set HOST interrupt. */ | |
224 | tmp = sbus_readw(qpti->qregs + HCCTRL); | |
225 | tmp |= HCCTRL_SHIRQ; | |
226 | sbus_writew(tmp, qpti->qregs + HCCTRL); | |
227 | ||
228 | /* Wait for HOST interrupt clears. */ | |
229 | loop_count = DEFAULT_LOOP_COUNT; | |
230 | while (--loop_count && | |
231 | (sbus_readw(qpti->qregs + HCCTRL) & HCCTRL_CRIRQ)) | |
232 | udelay(20); | |
233 | if (!loop_count) | |
585a8a59 MF |
234 | printk(KERN_EMERG "qlogicpti%d: mbox_command[%04x] loop timeout #2\n", |
235 | qpti->qpti_id, param[0]); | |
1da177e4 LT |
236 | |
237 | /* Wait for SBUS semaphore to get set. */ | |
238 | loop_count = DEFAULT_LOOP_COUNT; | |
239 | while (--loop_count && | |
240 | !(sbus_readw(qpti->qregs + SBUS_SEMAPHORE) & SBUS_SEMAPHORE_LCK)) { | |
241 | udelay(20); | |
242 | ||
243 | /* Workaround for some buggy chips. */ | |
244 | if (sbus_readw(qpti->qregs + MBOX0) & 0x4000) | |
245 | break; | |
246 | } | |
247 | if (!loop_count) | |
585a8a59 MF |
248 | printk(KERN_EMERG "qlogicpti%d: mbox_command[%04x] loop timeout #3\n", |
249 | qpti->qpti_id, param[0]); | |
1da177e4 LT |
250 | |
251 | /* Wait for MBOX busy condition to go away. */ | |
252 | loop_count = DEFAULT_LOOP_COUNT; | |
253 | while (--loop_count && (sbus_readw(qpti->qregs + MBOX0) == 0x04)) | |
254 | udelay(20); | |
255 | if (!loop_count) | |
585a8a59 MF |
256 | printk(KERN_EMERG "qlogicpti%d: mbox_command[%04x] loop timeout #4\n", |
257 | qpti->qpti_id, param[0]); | |
1da177e4 LT |
258 | |
259 | /* Read back output parameters. */ | |
260 | switch (mbox_param[param[0]] & 0xf) { | |
261 | case 6: param[5] = sbus_readw(qpti->qregs + MBOX5); | |
6d44c692 | 262 | /* Fall through */ |
1da177e4 | 263 | case 5: param[4] = sbus_readw(qpti->qregs + MBOX4); |
6d44c692 | 264 | /* Fall through */ |
1da177e4 | 265 | case 4: param[3] = sbus_readw(qpti->qregs + MBOX3); |
6d44c692 | 266 | /* Fall through */ |
1da177e4 | 267 | case 3: param[2] = sbus_readw(qpti->qregs + MBOX2); |
6d44c692 | 268 | /* Fall through */ |
1da177e4 | 269 | case 2: param[1] = sbus_readw(qpti->qregs + MBOX1); |
6d44c692 | 270 | /* Fall through */ |
1da177e4 LT |
271 | case 1: param[0] = sbus_readw(qpti->qregs + MBOX0); |
272 | } | |
273 | ||
274 | /* Clear RISC interrupt. */ | |
275 | tmp = sbus_readw(qpti->qregs + HCCTRL); | |
276 | tmp |= HCCTRL_CRIRQ; | |
277 | sbus_writew(tmp, qpti->qregs + HCCTRL); | |
278 | ||
279 | /* Release SBUS semaphore. */ | |
280 | tmp = sbus_readw(qpti->qregs + SBUS_SEMAPHORE); | |
281 | tmp &= ~(SBUS_SEMAPHORE_LCK); | |
282 | sbus_writew(tmp, qpti->qregs + SBUS_SEMAPHORE); | |
283 | ||
284 | /* We're done. */ | |
285 | return 0; | |
286 | } | |
287 | ||
288 | static inline void qlogicpti_set_hostdev_defaults(struct qlogicpti *qpti) | |
289 | { | |
290 | int i; | |
291 | ||
292 | qpti->host_param.initiator_scsi_id = qpti->scsi_id; | |
293 | qpti->host_param.bus_reset_delay = 3; | |
294 | qpti->host_param.retry_count = 0; | |
295 | qpti->host_param.retry_delay = 5; | |
296 | qpti->host_param.async_data_setup_time = 3; | |
297 | qpti->host_param.req_ack_active_negation = 1; | |
298 | qpti->host_param.data_line_active_negation = 1; | |
299 | qpti->host_param.data_dma_burst_enable = 1; | |
300 | qpti->host_param.command_dma_burst_enable = 1; | |
301 | qpti->host_param.tag_aging = 8; | |
302 | qpti->host_param.selection_timeout = 250; | |
303 | qpti->host_param.max_queue_depth = 256; | |
304 | ||
305 | for(i = 0; i < MAX_TARGETS; i++) { | |
306 | /* | |
307 | * disconnect, parity, arq, reneg on reset, and, oddly enough | |
308 | * tags...the midlayer's notion of tagged support has to match | |
309 | * our device settings, and since we base whether we enable a | |
310 | * tag on a per-cmnd basis upon what the midlayer sez, we | |
311 | * actually enable the capability here. | |
312 | */ | |
313 | qpti->dev_param[i].device_flags = 0xcd; | |
314 | qpti->dev_param[i].execution_throttle = 16; | |
315 | if (qpti->ultra) { | |
316 | qpti->dev_param[i].synchronous_period = 12; | |
317 | qpti->dev_param[i].synchronous_offset = 8; | |
318 | } else { | |
319 | qpti->dev_param[i].synchronous_period = 25; | |
320 | qpti->dev_param[i].synchronous_offset = 12; | |
321 | } | |
322 | qpti->dev_param[i].device_enable = 1; | |
323 | } | |
1da177e4 LT |
324 | } |
325 | ||
326 | static int qlogicpti_reset_hardware(struct Scsi_Host *host) | |
327 | { | |
328 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; | |
329 | u_short param[6]; | |
330 | unsigned short risc_code_addr; | |
331 | int loop_count, i; | |
332 | unsigned long flags; | |
333 | ||
334 | risc_code_addr = 0x1000; /* all load addresses are at 0x1000 */ | |
335 | ||
336 | spin_lock_irqsave(host->host_lock, flags); | |
337 | ||
338 | sbus_writew(HCCTRL_PAUSE, qpti->qregs + HCCTRL); | |
339 | ||
340 | /* Only reset the scsi bus if it is not free. */ | |
341 | if (sbus_readw(qpti->qregs + CPU_PCTRL) & CPU_PCTRL_BSY) { | |
342 | sbus_writew(CPU_ORIDE_RMOD, qpti->qregs + CPU_ORIDE); | |
343 | sbus_writew(CPU_CMD_BRESET, qpti->qregs + CPU_CMD); | |
344 | udelay(400); | |
345 | } | |
346 | ||
347 | sbus_writew(SBUS_CTRL_RESET, qpti->qregs + SBUS_CTRL); | |
348 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + CMD_DMA_CTRL); | |
349 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + DATA_DMA_CTRL); | |
350 | ||
351 | loop_count = DEFAULT_LOOP_COUNT; | |
352 | while (--loop_count && ((sbus_readw(qpti->qregs + MBOX0) & 0xff) == 0x04)) | |
353 | udelay(20); | |
354 | if (!loop_count) | |
585a8a59 MF |
355 | printk(KERN_EMERG "qlogicpti%d: reset_hardware loop timeout\n", |
356 | qpti->qpti_id); | |
1da177e4 LT |
357 | |
358 | sbus_writew(HCCTRL_PAUSE, qpti->qregs + HCCTRL); | |
359 | set_sbus_cfg1(qpti); | |
360 | qlogicpti_enable_irqs(qpti); | |
361 | ||
362 | if (sbus_readw(qpti->qregs + RISC_PSR) & RISC_PSR_ULTRA) { | |
363 | qpti->ultra = 1; | |
364 | sbus_writew((RISC_MTREG_P0ULTRA | RISC_MTREG_P1ULTRA), | |
365 | qpti->qregs + RISC_MTREG); | |
366 | } else { | |
367 | qpti->ultra = 0; | |
368 | sbus_writew((RISC_MTREG_P0DFLT | RISC_MTREG_P1DFLT), | |
369 | qpti->qregs + RISC_MTREG); | |
370 | } | |
371 | ||
372 | /* reset adapter and per-device default values. */ | |
373 | /* do it after finding out whether we're ultra mode capable */ | |
374 | qlogicpti_set_hostdev_defaults(qpti); | |
375 | ||
376 | /* Release the RISC processor. */ | |
377 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); | |
378 | ||
379 | /* Get RISC to start executing the firmware code. */ | |
380 | param[0] = MBOX_EXEC_FIRMWARE; | |
381 | param[1] = risc_code_addr; | |
382 | if (qlogicpti_mbox_command(qpti, param, 1)) { | |
383 | printk(KERN_EMERG "qlogicpti%d: Cannot execute ISP firmware.\n", | |
384 | qpti->qpti_id); | |
385 | spin_unlock_irqrestore(host->host_lock, flags); | |
386 | return 1; | |
387 | } | |
388 | ||
389 | /* Set initiator scsi ID. */ | |
390 | param[0] = MBOX_SET_INIT_SCSI_ID; | |
391 | param[1] = qpti->host_param.initiator_scsi_id; | |
392 | if (qlogicpti_mbox_command(qpti, param, 1) || | |
393 | (param[0] != MBOX_COMMAND_COMPLETE)) { | |
394 | printk(KERN_EMERG "qlogicpti%d: Cannot set initiator SCSI ID.\n", | |
395 | qpti->qpti_id); | |
396 | spin_unlock_irqrestore(host->host_lock, flags); | |
397 | return 1; | |
398 | } | |
399 | ||
400 | /* Initialize state of the queues, both hw and sw. */ | |
401 | qpti->req_in_ptr = qpti->res_out_ptr = 0; | |
402 | ||
403 | param[0] = MBOX_INIT_RES_QUEUE; | |
404 | param[1] = RES_QUEUE_LEN + 1; | |
405 | param[2] = (u_short) (qpti->res_dvma >> 16); | |
406 | param[3] = (u_short) (qpti->res_dvma & 0xffff); | |
407 | param[4] = param[5] = 0; | |
408 | if (qlogicpti_mbox_command(qpti, param, 1)) { | |
409 | printk(KERN_EMERG "qlogicpti%d: Cannot init response queue.\n", | |
410 | qpti->qpti_id); | |
411 | spin_unlock_irqrestore(host->host_lock, flags); | |
412 | return 1; | |
413 | } | |
414 | ||
415 | param[0] = MBOX_INIT_REQ_QUEUE; | |
416 | param[1] = QLOGICPTI_REQ_QUEUE_LEN + 1; | |
417 | param[2] = (u_short) (qpti->req_dvma >> 16); | |
418 | param[3] = (u_short) (qpti->req_dvma & 0xffff); | |
419 | param[4] = param[5] = 0; | |
420 | if (qlogicpti_mbox_command(qpti, param, 1)) { | |
421 | printk(KERN_EMERG "qlogicpti%d: Cannot init request queue.\n", | |
422 | qpti->qpti_id); | |
423 | spin_unlock_irqrestore(host->host_lock, flags); | |
424 | return 1; | |
425 | } | |
426 | ||
427 | param[0] = MBOX_SET_RETRY_COUNT; | |
428 | param[1] = qpti->host_param.retry_count; | |
429 | param[2] = qpti->host_param.retry_delay; | |
430 | qlogicpti_mbox_command(qpti, param, 0); | |
431 | ||
432 | param[0] = MBOX_SET_TAG_AGE_LIMIT; | |
433 | param[1] = qpti->host_param.tag_aging; | |
434 | qlogicpti_mbox_command(qpti, param, 0); | |
435 | ||
436 | for (i = 0; i < MAX_TARGETS; i++) { | |
437 | param[0] = MBOX_GET_DEV_QUEUE_PARAMS; | |
438 | param[1] = (i << 8); | |
439 | qlogicpti_mbox_command(qpti, param, 0); | |
440 | } | |
441 | ||
442 | param[0] = MBOX_GET_FIRMWARE_STATUS; | |
443 | qlogicpti_mbox_command(qpti, param, 0); | |
444 | ||
445 | param[0] = MBOX_SET_SELECT_TIMEOUT; | |
446 | param[1] = qpti->host_param.selection_timeout; | |
447 | qlogicpti_mbox_command(qpti, param, 0); | |
448 | ||
449 | for (i = 0; i < MAX_TARGETS; i++) { | |
450 | param[0] = MBOX_SET_TARGET_PARAMS; | |
451 | param[1] = (i << 8); | |
452 | param[2] = (qpti->dev_param[i].device_flags << 8); | |
453 | /* | |
454 | * Since we're now loading 1.31 f/w, force narrow/async. | |
455 | */ | |
456 | param[2] |= 0xc0; | |
457 | param[3] = 0; /* no offset, we do not have sync mode yet */ | |
458 | qlogicpti_mbox_command(qpti, param, 0); | |
459 | } | |
460 | ||
461 | /* | |
462 | * Always (sigh) do an initial bus reset (kicks f/w). | |
463 | */ | |
464 | param[0] = MBOX_BUS_RESET; | |
465 | param[1] = qpti->host_param.bus_reset_delay; | |
466 | qlogicpti_mbox_command(qpti, param, 0); | |
467 | qpti->send_marker = 1; | |
468 | ||
469 | spin_unlock_irqrestore(host->host_lock, flags); | |
470 | return 0; | |
471 | } | |
472 | ||
473 | #define PTI_RESET_LIMIT 400 | |
474 | ||
6f039790 | 475 | static int qlogicpti_load_firmware(struct qlogicpti *qpti) |
1da177e4 | 476 | { |
f894e74d JSR |
477 | const struct firmware *fw; |
478 | const char fwname[] = "qlogic/isp1000.bin"; | |
479 | const __le16 *fw_data; | |
1da177e4 LT |
480 | struct Scsi_Host *host = qpti->qhost; |
481 | unsigned short csum = 0; | |
482 | unsigned short param[6]; | |
f894e74d JSR |
483 | unsigned short risc_code_addr, risc_code_length; |
484 | int err; | |
1da177e4 LT |
485 | unsigned long flags; |
486 | int i, timeout; | |
487 | ||
f894e74d JSR |
488 | err = request_firmware(&fw, fwname, &qpti->op->dev); |
489 | if (err) { | |
490 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", | |
491 | fwname, err); | |
492 | return err; | |
493 | } | |
494 | if (fw->size % 2) { | |
495 | printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", | |
496 | fw->size, fwname); | |
497 | err = -EINVAL; | |
498 | goto outfirm; | |
499 | } | |
500 | fw_data = (const __le16 *)&fw->data[0]; | |
1da177e4 | 501 | risc_code_addr = 0x1000; /* all f/w modules load at 0x1000 */ |
f894e74d | 502 | risc_code_length = fw->size / 2; |
1da177e4 LT |
503 | |
504 | spin_lock_irqsave(host->host_lock, flags); | |
505 | ||
506 | /* Verify the checksum twice, one before loading it, and once | |
507 | * afterwards via the mailbox commands. | |
508 | */ | |
509 | for (i = 0; i < risc_code_length; i++) | |
f894e74d | 510 | csum += __le16_to_cpu(fw_data[i]); |
1da177e4 | 511 | if (csum) { |
1da177e4 LT |
512 | printk(KERN_EMERG "qlogicpti%d: Aieee, firmware checksum failed!", |
513 | qpti->qpti_id); | |
f894e74d JSR |
514 | err = 1; |
515 | goto out; | |
1da177e4 LT |
516 | } |
517 | sbus_writew(SBUS_CTRL_RESET, qpti->qregs + SBUS_CTRL); | |
518 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + CMD_DMA_CTRL); | |
519 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + DATA_DMA_CTRL); | |
520 | timeout = PTI_RESET_LIMIT; | |
521 | while (--timeout && (sbus_readw(qpti->qregs + SBUS_CTRL) & SBUS_CTRL_RESET)) | |
522 | udelay(20); | |
523 | if (!timeout) { | |
1da177e4 | 524 | printk(KERN_EMERG "qlogicpti%d: Cannot reset the ISP.", qpti->qpti_id); |
f894e74d JSR |
525 | err = 1; |
526 | goto out; | |
1da177e4 LT |
527 | } |
528 | ||
529 | sbus_writew(HCCTRL_RESET, qpti->qregs + HCCTRL); | |
530 | mdelay(1); | |
531 | ||
532 | sbus_writew((SBUS_CTRL_GENAB | SBUS_CTRL_ERIRQ), qpti->qregs + SBUS_CTRL); | |
533 | set_sbus_cfg1(qpti); | |
534 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); | |
535 | ||
536 | if (sbus_readw(qpti->qregs + RISC_PSR) & RISC_PSR_ULTRA) { | |
537 | qpti->ultra = 1; | |
538 | sbus_writew((RISC_MTREG_P0ULTRA | RISC_MTREG_P1ULTRA), | |
539 | qpti->qregs + RISC_MTREG); | |
540 | } else { | |
541 | qpti->ultra = 0; | |
542 | sbus_writew((RISC_MTREG_P0DFLT | RISC_MTREG_P1DFLT), | |
543 | qpti->qregs + RISC_MTREG); | |
544 | } | |
545 | ||
546 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); | |
547 | ||
548 | /* Pin lines are only stable while RISC is paused. */ | |
549 | sbus_writew(HCCTRL_PAUSE, qpti->qregs + HCCTRL); | |
550 | if (sbus_readw(qpti->qregs + CPU_PDIFF) & CPU_PDIFF_MODE) | |
551 | qpti->differential = 1; | |
552 | else | |
553 | qpti->differential = 0; | |
554 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); | |
555 | ||
556 | /* This shouldn't be necessary- we've reset things so we should be | |
557 | running from the ROM now.. */ | |
558 | ||
559 | param[0] = MBOX_STOP_FIRMWARE; | |
560 | param[1] = param[2] = param[3] = param[4] = param[5] = 0; | |
561 | if (qlogicpti_mbox_command(qpti, param, 1)) { | |
562 | printk(KERN_EMERG "qlogicpti%d: Cannot stop firmware for reload.\n", | |
563 | qpti->qpti_id); | |
f894e74d JSR |
564 | err = 1; |
565 | goto out; | |
1da177e4 LT |
566 | } |
567 | ||
568 | /* Load it up.. */ | |
569 | for (i = 0; i < risc_code_length; i++) { | |
570 | param[0] = MBOX_WRITE_RAM_WORD; | |
571 | param[1] = risc_code_addr + i; | |
f894e74d | 572 | param[2] = __le16_to_cpu(fw_data[i]); |
1da177e4 LT |
573 | if (qlogicpti_mbox_command(qpti, param, 1) || |
574 | param[0] != MBOX_COMMAND_COMPLETE) { | |
575 | printk("qlogicpti%d: Firmware dload failed, I'm bolixed!\n", | |
576 | qpti->qpti_id); | |
f894e74d JSR |
577 | err = 1; |
578 | goto out; | |
1da177e4 LT |
579 | } |
580 | } | |
581 | ||
582 | /* Reset the ISP again. */ | |
583 | sbus_writew(HCCTRL_RESET, qpti->qregs + HCCTRL); | |
584 | mdelay(1); | |
585 | ||
586 | qlogicpti_enable_irqs(qpti); | |
587 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); | |
588 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); | |
589 | ||
590 | /* Ask ISP to verify the checksum of the new code. */ | |
591 | param[0] = MBOX_VERIFY_CHECKSUM; | |
592 | param[1] = risc_code_addr; | |
593 | if (qlogicpti_mbox_command(qpti, param, 1) || | |
594 | (param[0] != MBOX_COMMAND_COMPLETE)) { | |
595 | printk(KERN_EMERG "qlogicpti%d: New firmware csum failure!\n", | |
596 | qpti->qpti_id); | |
f894e74d JSR |
597 | err = 1; |
598 | goto out; | |
1da177e4 LT |
599 | } |
600 | ||
601 | /* Start using newly downloaded firmware. */ | |
602 | param[0] = MBOX_EXEC_FIRMWARE; | |
603 | param[1] = risc_code_addr; | |
604 | qlogicpti_mbox_command(qpti, param, 1); | |
605 | ||
606 | param[0] = MBOX_ABOUT_FIRMWARE; | |
607 | if (qlogicpti_mbox_command(qpti, param, 1) || | |
608 | (param[0] != MBOX_COMMAND_COMPLETE)) { | |
609 | printk(KERN_EMERG "qlogicpti%d: AboutFirmware cmd fails.\n", | |
610 | qpti->qpti_id); | |
f894e74d JSR |
611 | err = 1; |
612 | goto out; | |
1da177e4 LT |
613 | } |
614 | ||
615 | /* Snag the major and minor revisions from the result. */ | |
616 | qpti->fware_majrev = param[1]; | |
617 | qpti->fware_minrev = param[2]; | |
618 | qpti->fware_micrev = param[3]; | |
619 | ||
620 | /* Set the clock rate */ | |
621 | param[0] = MBOX_SET_CLOCK_RATE; | |
622 | param[1] = qpti->clock; | |
623 | if (qlogicpti_mbox_command(qpti, param, 1) || | |
624 | (param[0] != MBOX_COMMAND_COMPLETE)) { | |
625 | printk(KERN_EMERG "qlogicpti%d: could not set clock rate.\n", | |
626 | qpti->qpti_id); | |
f894e74d JSR |
627 | err = 1; |
628 | goto out; | |
1da177e4 LT |
629 | } |
630 | ||
631 | if (qpti->is_pti != 0) { | |
632 | /* Load scsi initiator ID and interrupt level into sbus static ram. */ | |
633 | param[0] = MBOX_WRITE_RAM_WORD; | |
634 | param[1] = 0xff80; | |
635 | param[2] = (unsigned short) qpti->scsi_id; | |
636 | qlogicpti_mbox_command(qpti, param, 1); | |
637 | ||
638 | param[0] = MBOX_WRITE_RAM_WORD; | |
639 | param[1] = 0xff00; | |
640 | param[2] = (unsigned short) 3; | |
641 | qlogicpti_mbox_command(qpti, param, 1); | |
642 | } | |
643 | ||
f894e74d | 644 | out: |
1da177e4 | 645 | spin_unlock_irqrestore(host->host_lock, flags); |
f894e74d JSR |
646 | outfirm: |
647 | release_firmware(fw); | |
648 | return err; | |
1da177e4 LT |
649 | } |
650 | ||
651 | static int qlogicpti_verify_tmon(struct qlogicpti *qpti) | |
652 | { | |
653 | int curstat = sbus_readb(qpti->sreg); | |
654 | ||
655 | curstat &= 0xf0; | |
656 | if (!(curstat & SREG_FUSE) && (qpti->swsreg & SREG_FUSE)) | |
657 | printk("qlogicpti%d: Fuse returned to normal state.\n", qpti->qpti_id); | |
658 | if (!(curstat & SREG_TPOWER) && (qpti->swsreg & SREG_TPOWER)) | |
659 | printk("qlogicpti%d: termpwr back to normal state.\n", qpti->qpti_id); | |
660 | if (curstat != qpti->swsreg) { | |
661 | int error = 0; | |
662 | if (curstat & SREG_FUSE) { | |
663 | error++; | |
664 | printk("qlogicpti%d: Fuse is open!\n", qpti->qpti_id); | |
665 | } | |
666 | if (curstat & SREG_TPOWER) { | |
667 | error++; | |
668 | printk("qlogicpti%d: termpwr failure\n", qpti->qpti_id); | |
669 | } | |
670 | if (qpti->differential && | |
671 | (curstat & SREG_DSENSE) != SREG_DSENSE) { | |
672 | error++; | |
673 | printk("qlogicpti%d: You have a single ended device on a " | |
674 | "differential bus! Please fix!\n", qpti->qpti_id); | |
675 | } | |
676 | qpti->swsreg = curstat; | |
677 | return error; | |
678 | } | |
679 | return 0; | |
680 | } | |
681 | ||
7d12e780 | 682 | static irqreturn_t qpti_intr(int irq, void *dev_id); |
1da177e4 | 683 | |
6f039790 | 684 | static void qpti_chain_add(struct qlogicpti *qpti) |
1da177e4 LT |
685 | { |
686 | spin_lock_irq(&qptichain_lock); | |
687 | if (qptichain != NULL) { | |
688 | struct qlogicpti *qlink = qptichain; | |
689 | ||
690 | while(qlink->next) | |
691 | qlink = qlink->next; | |
692 | qlink->next = qpti; | |
693 | } else { | |
694 | qptichain = qpti; | |
695 | } | |
696 | qpti->next = NULL; | |
697 | spin_unlock_irq(&qptichain_lock); | |
698 | } | |
699 | ||
6f039790 | 700 | static void qpti_chain_del(struct qlogicpti *qpti) |
1da177e4 LT |
701 | { |
702 | spin_lock_irq(&qptichain_lock); | |
703 | if (qptichain == qpti) { | |
704 | qptichain = qpti->next; | |
705 | } else { | |
706 | struct qlogicpti *qlink = qptichain; | |
707 | while(qlink->next != qpti) | |
708 | qlink = qlink->next; | |
709 | qlink->next = qpti->next; | |
710 | } | |
711 | qpti->next = NULL; | |
712 | spin_unlock_irq(&qptichain_lock); | |
713 | } | |
714 | ||
6f039790 | 715 | static int qpti_map_regs(struct qlogicpti *qpti) |
1da177e4 | 716 | { |
2dc11581 | 717 | struct platform_device *op = qpti->op; |
1da177e4 | 718 | |
5dc2536b DM |
719 | qpti->qregs = of_ioremap(&op->resource[0], 0, |
720 | resource_size(&op->resource[0]), | |
721 | "PTI Qlogic/ISP"); | |
1da177e4 LT |
722 | if (!qpti->qregs) { |
723 | printk("PTI: Qlogic/ISP registers are unmappable\n"); | |
a6d24143 | 724 | return -ENODEV; |
1da177e4 LT |
725 | } |
726 | if (qpti->is_pti) { | |
5dc2536b DM |
727 | qpti->sreg = of_ioremap(&op->resource[0], (16 * 4096), |
728 | sizeof(unsigned char), | |
729 | "PTI Qlogic/ISP statreg"); | |
1da177e4 LT |
730 | if (!qpti->sreg) { |
731 | printk("PTI: Qlogic/ISP status register is unmappable\n"); | |
a6d24143 | 732 | return -ENODEV; |
1da177e4 LT |
733 | } |
734 | } | |
735 | return 0; | |
736 | } | |
737 | ||
6f039790 | 738 | static int qpti_register_irq(struct qlogicpti *qpti) |
1da177e4 | 739 | { |
2dc11581 | 740 | struct platform_device *op = qpti->op; |
1da177e4 | 741 | |
1636f8ac | 742 | qpti->qhost->irq = qpti->irq = op->archdata.irqs[0]; |
1da177e4 LT |
743 | |
744 | /* We used to try various overly-clever things to | |
745 | * reduce the interrupt processing overhead on | |
746 | * sun4c/sun4m when multiple PTI's shared the | |
747 | * same IRQ. It was too complex and messy to | |
748 | * sanely maintain. | |
749 | */ | |
750 | if (request_irq(qpti->irq, qpti_intr, | |
77d39263 | 751 | IRQF_SHARED, "QlogicPTI", qpti)) |
1da177e4 LT |
752 | goto fail; |
753 | ||
585a8a59 | 754 | printk("qlogicpti%d: IRQ %d ", qpti->qpti_id, qpti->irq); |
1da177e4 LT |
755 | |
756 | return 0; | |
757 | ||
758 | fail: | |
585a8a59 | 759 | printk("qlogicpti%d: Cannot acquire irq line\n", qpti->qpti_id); |
1da177e4 LT |
760 | return -1; |
761 | } | |
762 | ||
6f039790 | 763 | static void qpti_get_scsi_id(struct qlogicpti *qpti) |
1da177e4 | 764 | { |
2dc11581 | 765 | struct platform_device *op = qpti->op; |
5dc2536b DM |
766 | struct device_node *dp; |
767 | ||
61c7a080 | 768 | dp = op->dev.of_node; |
5dc2536b DM |
769 | |
770 | qpti->scsi_id = of_getintprop_default(dp, "initiator-id", -1); | |
1da177e4 | 771 | if (qpti->scsi_id == -1) |
5dc2536b DM |
772 | qpti->scsi_id = of_getintprop_default(dp, "scsi-initiator-id", |
773 | -1); | |
1da177e4 LT |
774 | if (qpti->scsi_id == -1) |
775 | qpti->scsi_id = | |
5dc2536b DM |
776 | of_getintprop_default(dp->parent, |
777 | "scsi-initiator-id", 7); | |
1da177e4 LT |
778 | qpti->qhost->this_id = qpti->scsi_id; |
779 | qpti->qhost->max_sectors = 64; | |
780 | ||
781 | printk("SCSI ID %d ", qpti->scsi_id); | |
782 | } | |
783 | ||
784 | static void qpti_get_bursts(struct qlogicpti *qpti) | |
785 | { | |
2dc11581 | 786 | struct platform_device *op = qpti->op; |
1da177e4 LT |
787 | u8 bursts, bmask; |
788 | ||
61c7a080 GL |
789 | bursts = of_getintprop_default(op->dev.of_node, "burst-sizes", 0xff); |
790 | bmask = of_getintprop_default(op->dev.of_node->parent, "burst-sizes", 0xff); | |
1da177e4 LT |
791 | if (bmask != 0xff) |
792 | bursts &= bmask; | |
793 | if (bursts == 0xff || | |
794 | (bursts & DMA_BURST16) == 0 || | |
795 | (bursts & DMA_BURST32) == 0) | |
796 | bursts = (DMA_BURST32 - 1); | |
797 | ||
798 | qpti->bursts = bursts; | |
799 | } | |
800 | ||
801 | static void qpti_get_clock(struct qlogicpti *qpti) | |
802 | { | |
803 | unsigned int cfreq; | |
804 | ||
805 | /* Check for what the clock input to this card is. | |
806 | * Default to 40Mhz. | |
807 | */ | |
808 | cfreq = prom_getintdefault(qpti->prom_node,"clock-frequency",40000000); | |
809 | qpti->clock = (cfreq + 500000)/1000000; | |
810 | if (qpti->clock == 0) /* bullshit */ | |
811 | qpti->clock = 40; | |
812 | } | |
813 | ||
814 | /* The request and response queues must each be aligned | |
815 | * on a page boundary. | |
816 | */ | |
6f039790 | 817 | static int qpti_map_queues(struct qlogicpti *qpti) |
1da177e4 | 818 | { |
2dc11581 | 819 | struct platform_device *op = qpti->op; |
1da177e4 LT |
820 | |
821 | #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) | |
5dc2536b | 822 | qpti->res_cpu = dma_alloc_coherent(&op->dev, |
738f2b7b DM |
823 | QSIZE(RES_QUEUE_LEN), |
824 | &qpti->res_dvma, GFP_ATOMIC); | |
1da177e4 LT |
825 | if (qpti->res_cpu == NULL || |
826 | qpti->res_dvma == 0) { | |
827 | printk("QPTI: Cannot map response queue.\n"); | |
828 | return -1; | |
829 | } | |
830 | ||
5dc2536b | 831 | qpti->req_cpu = dma_alloc_coherent(&op->dev, |
738f2b7b DM |
832 | QSIZE(QLOGICPTI_REQ_QUEUE_LEN), |
833 | &qpti->req_dvma, GFP_ATOMIC); | |
1da177e4 LT |
834 | if (qpti->req_cpu == NULL || |
835 | qpti->req_dvma == 0) { | |
5dc2536b | 836 | dma_free_coherent(&op->dev, QSIZE(RES_QUEUE_LEN), |
738f2b7b | 837 | qpti->res_cpu, qpti->res_dvma); |
1da177e4 LT |
838 | printk("QPTI: Cannot map request queue.\n"); |
839 | return -1; | |
840 | } | |
841 | memset(qpti->res_cpu, 0, QSIZE(RES_QUEUE_LEN)); | |
842 | memset(qpti->req_cpu, 0, QSIZE(QLOGICPTI_REQ_QUEUE_LEN)); | |
843 | return 0; | |
844 | } | |
845 | ||
1da177e4 LT |
846 | const char *qlogicpti_info(struct Scsi_Host *host) |
847 | { | |
848 | static char buf[80]; | |
849 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; | |
850 | ||
c6387a48 DM |
851 | sprintf(buf, "PTI Qlogic,ISP SBUS SCSI irq %d regs at %p", |
852 | qpti->qhost->irq, qpti->qregs); | |
1da177e4 LT |
853 | return buf; |
854 | } | |
855 | ||
856 | /* I am a certified frobtronicist. */ | |
857 | static inline void marker_frob(struct Command_Entry *cmd) | |
858 | { | |
859 | struct Marker_Entry *marker = (struct Marker_Entry *) cmd; | |
860 | ||
861 | memset(marker, 0, sizeof(struct Marker_Entry)); | |
862 | marker->hdr.entry_cnt = 1; | |
863 | marker->hdr.entry_type = ENTRY_MARKER; | |
864 | marker->modifier = SYNC_ALL; | |
865 | marker->rsvd = 0; | |
866 | } | |
867 | ||
868 | static inline void cmd_frob(struct Command_Entry *cmd, struct scsi_cmnd *Cmnd, | |
869 | struct qlogicpti *qpti) | |
870 | { | |
871 | memset(cmd, 0, sizeof(struct Command_Entry)); | |
872 | cmd->hdr.entry_cnt = 1; | |
873 | cmd->hdr.entry_type = ENTRY_COMMAND; | |
874 | cmd->target_id = Cmnd->device->id; | |
875 | cmd->target_lun = Cmnd->device->lun; | |
876 | cmd->cdb_length = Cmnd->cmd_len; | |
877 | cmd->control_flags = 0; | |
878 | if (Cmnd->device->tagged_supported) { | |
879 | if (qpti->cmd_count[Cmnd->device->id] == 0) | |
880 | qpti->tag_ages[Cmnd->device->id] = jiffies; | |
60c904ae | 881 | if (time_after(jiffies, qpti->tag_ages[Cmnd->device->id] + (5*HZ))) { |
1da177e4 LT |
882 | cmd->control_flags = CFLAG_ORDERED_TAG; |
883 | qpti->tag_ages[Cmnd->device->id] = jiffies; | |
884 | } else | |
885 | cmd->control_flags = CFLAG_SIMPLE_TAG; | |
886 | } | |
887 | if ((Cmnd->cmnd[0] == WRITE_6) || | |
888 | (Cmnd->cmnd[0] == WRITE_10) || | |
889 | (Cmnd->cmnd[0] == WRITE_12)) | |
890 | cmd->control_flags |= CFLAG_WRITE; | |
891 | else | |
892 | cmd->control_flags |= CFLAG_READ; | |
528c04ee | 893 | cmd->time_out = Cmnd->request->timeout/HZ; |
1da177e4 LT |
894 | memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len); |
895 | } | |
896 | ||
897 | /* Do it to it baby. */ | |
898 | static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd, | |
899 | struct qlogicpti *qpti, u_int in_ptr, u_int out_ptr) | |
900 | { | |
901 | struct dataseg *ds; | |
2f08fe52 | 902 | struct scatterlist *sg, *s; |
1da177e4 LT |
903 | int i, n; |
904 | ||
dfb104ff | 905 | if (scsi_bufflen(Cmnd)) { |
1da177e4 LT |
906 | int sg_count; |
907 | ||
dfb104ff | 908 | sg = scsi_sglist(Cmnd); |
5dc2536b | 909 | sg_count = dma_map_sg(&qpti->op->dev, sg, |
738f2b7b DM |
910 | scsi_sg_count(Cmnd), |
911 | Cmnd->sc_data_direction); | |
1da177e4 LT |
912 | |
913 | ds = cmd->dataseg; | |
914 | cmd->segment_cnt = sg_count; | |
915 | ||
916 | /* Fill in first four sg entries: */ | |
917 | n = sg_count; | |
918 | if (n > 4) | |
919 | n = 4; | |
2f08fe52 JA |
920 | for_each_sg(sg, s, n, i) { |
921 | ds[i].d_base = sg_dma_address(s); | |
922 | ds[i].d_count = sg_dma_len(s); | |
1da177e4 LT |
923 | } |
924 | sg_count -= 4; | |
2f08fe52 | 925 | sg = s; |
1da177e4 LT |
926 | while (sg_count > 0) { |
927 | struct Continuation_Entry *cont; | |
928 | ||
929 | ++cmd->hdr.entry_cnt; | |
930 | cont = (struct Continuation_Entry *) &qpti->req_cpu[in_ptr]; | |
931 | in_ptr = NEXT_REQ_PTR(in_ptr); | |
932 | if (in_ptr == out_ptr) | |
933 | return -1; | |
934 | ||
935 | cont->hdr.entry_type = ENTRY_CONTINUATION; | |
936 | cont->hdr.entry_cnt = 0; | |
937 | cont->hdr.sys_def_1 = 0; | |
938 | cont->hdr.flags = 0; | |
939 | cont->reserved = 0; | |
940 | ds = cont->dataseg; | |
941 | n = sg_count; | |
942 | if (n > 7) | |
943 | n = 7; | |
2f08fe52 JA |
944 | for_each_sg(sg, s, n, i) { |
945 | ds[i].d_base = sg_dma_address(s); | |
946 | ds[i].d_count = sg_dma_len(s); | |
1da177e4 LT |
947 | } |
948 | sg_count -= n; | |
7e6cfb54 | 949 | sg = s; |
1da177e4 | 950 | } |
1da177e4 LT |
951 | } else { |
952 | cmd->dataseg[0].d_base = 0; | |
953 | cmd->dataseg[0].d_count = 0; | |
954 | cmd->segment_cnt = 1; /* Shouldn't this be 0? */ | |
955 | } | |
956 | ||
957 | /* Committed, record Scsi_Cmd so we can find it later. */ | |
958 | cmd->handle = in_ptr; | |
959 | qpti->cmd_slots[in_ptr] = Cmnd; | |
960 | ||
961 | qpti->cmd_count[Cmnd->device->id]++; | |
962 | sbus_writew(in_ptr, qpti->qregs + MBOX4); | |
963 | qpti->req_in_ptr = in_ptr; | |
964 | ||
965 | return in_ptr; | |
966 | } | |
967 | ||
968 | static inline void update_can_queue(struct Scsi_Host *host, u_int in_ptr, u_int out_ptr) | |
969 | { | |
970 | /* Temporary workaround until bug is found and fixed (one bug has been found | |
971 | already, but fixing it makes things even worse) -jj */ | |
972 | int num_free = QLOGICPTI_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr) - 64; | |
c84b023a | 973 | host->can_queue = scsi_host_busy(host) + num_free; |
1da177e4 LT |
974 | host->sg_tablesize = QLOGICPTI_MAX_SG(num_free); |
975 | } | |
976 | ||
9ec76fbf | 977 | static int qlogicpti_slave_configure(struct scsi_device *sdev) |
f75884d2 | 978 | { |
9ec76fbf MW |
979 | struct qlogicpti *qpti = shost_priv(sdev->host); |
980 | int tgt = sdev->id; | |
981 | u_short param[6]; | |
f75884d2 | 982 | |
9ec76fbf MW |
983 | /* tags handled in midlayer */ |
984 | /* enable sync mode? */ | |
985 | if (sdev->sdtr) { | |
986 | qpti->dev_param[tgt].device_flags |= 0x10; | |
f75884d2 | 987 | } else { |
9ec76fbf MW |
988 | qpti->dev_param[tgt].synchronous_offset = 0; |
989 | qpti->dev_param[tgt].synchronous_period = 0; | |
f75884d2 | 990 | } |
9ec76fbf MW |
991 | /* are we wide capable? */ |
992 | if (sdev->wdtr) | |
993 | qpti->dev_param[tgt].device_flags |= 0x20; | |
994 | ||
995 | param[0] = MBOX_SET_TARGET_PARAMS; | |
996 | param[1] = (tgt << 8); | |
997 | param[2] = (qpti->dev_param[tgt].device_flags << 8); | |
998 | if (qpti->dev_param[tgt].device_flags & 0x10) { | |
999 | param[3] = (qpti->dev_param[tgt].synchronous_offset << 8) | | |
1000 | qpti->dev_param[tgt].synchronous_period; | |
1001 | } else { | |
1002 | param[3] = 0; | |
1da177e4 | 1003 | } |
9ec76fbf MW |
1004 | qlogicpti_mbox_command(qpti, param, 0); |
1005 | return 0; | |
1da177e4 LT |
1006 | } |
1007 | ||
1008 | /* | |
1009 | * The middle SCSI layer ensures that queuecommand never gets invoked | |
1010 | * concurrently with itself or the interrupt handler (though the | |
1011 | * interrupt handler may call this routine as part of | |
1012 | * request-completion handling). | |
1013 | * | |
1014 | * "This code must fly." -davem | |
1015 | */ | |
f281233d | 1016 | static int qlogicpti_queuecommand_lck(struct scsi_cmnd *Cmnd, void (*done)(struct scsi_cmnd *)) |
1da177e4 LT |
1017 | { |
1018 | struct Scsi_Host *host = Cmnd->device->host; | |
1019 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; | |
1020 | struct Command_Entry *cmd; | |
1021 | u_int out_ptr; | |
1022 | int in_ptr; | |
1023 | ||
1024 | Cmnd->scsi_done = done; | |
1025 | ||
1026 | in_ptr = qpti->req_in_ptr; | |
1027 | cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr]; | |
1028 | out_ptr = sbus_readw(qpti->qregs + MBOX4); | |
1029 | in_ptr = NEXT_REQ_PTR(in_ptr); | |
1030 | if (in_ptr == out_ptr) | |
1031 | goto toss_command; | |
1032 | ||
1033 | if (qpti->send_marker) { | |
1034 | marker_frob(cmd); | |
1035 | qpti->send_marker = 0; | |
1036 | if (NEXT_REQ_PTR(in_ptr) == out_ptr) { | |
1037 | sbus_writew(in_ptr, qpti->qregs + MBOX4); | |
1038 | qpti->req_in_ptr = in_ptr; | |
1039 | goto toss_command; | |
1040 | } | |
1041 | cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr]; | |
1042 | in_ptr = NEXT_REQ_PTR(in_ptr); | |
1043 | } | |
1044 | cmd_frob(cmd, Cmnd, qpti); | |
1045 | if ((in_ptr = load_cmd(Cmnd, cmd, qpti, in_ptr, out_ptr)) == -1) | |
1046 | goto toss_command; | |
1047 | ||
1048 | update_can_queue(host, in_ptr, out_ptr); | |
1049 | ||
1050 | return 0; | |
1051 | ||
1052 | toss_command: | |
1053 | printk(KERN_EMERG "qlogicpti%d: request queue overflow\n", | |
1054 | qpti->qpti_id); | |
1055 | ||
1056 | /* Unfortunately, unless you use the new EH code, which | |
1057 | * we don't, the midlayer will ignore the return value, | |
1058 | * which is insane. We pick up the pieces like this. | |
1059 | */ | |
1060 | Cmnd->result = DID_BUS_BUSY; | |
1061 | done(Cmnd); | |
1062 | return 1; | |
1063 | } | |
1064 | ||
f281233d JG |
1065 | static DEF_SCSI_QCMD(qlogicpti_queuecommand) |
1066 | ||
1da177e4 LT |
1067 | static int qlogicpti_return_status(struct Status_Entry *sts, int id) |
1068 | { | |
1069 | int host_status = DID_ERROR; | |
1070 | ||
1071 | switch (sts->completion_status) { | |
1072 | case CS_COMPLETE: | |
1073 | host_status = DID_OK; | |
1074 | break; | |
1075 | case CS_INCOMPLETE: | |
1076 | if (!(sts->state_flags & SF_GOT_BUS)) | |
1077 | host_status = DID_NO_CONNECT; | |
1078 | else if (!(sts->state_flags & SF_GOT_TARGET)) | |
1079 | host_status = DID_BAD_TARGET; | |
1080 | else if (!(sts->state_flags & SF_SENT_CDB)) | |
1081 | host_status = DID_ERROR; | |
1082 | else if (!(sts->state_flags & SF_TRANSFERRED_DATA)) | |
1083 | host_status = DID_ERROR; | |
1084 | else if (!(sts->state_flags & SF_GOT_STATUS)) | |
1085 | host_status = DID_ERROR; | |
1086 | else if (!(sts->state_flags & SF_GOT_SENSE)) | |
1087 | host_status = DID_ERROR; | |
1088 | break; | |
1089 | case CS_DMA_ERROR: | |
1090 | case CS_TRANSPORT_ERROR: | |
1091 | host_status = DID_ERROR; | |
1092 | break; | |
1093 | case CS_RESET_OCCURRED: | |
1094 | case CS_BUS_RESET: | |
1095 | host_status = DID_RESET; | |
1096 | break; | |
1097 | case CS_ABORTED: | |
1098 | host_status = DID_ABORT; | |
1099 | break; | |
1100 | case CS_TIMEOUT: | |
1101 | host_status = DID_TIME_OUT; | |
1102 | break; | |
1103 | case CS_DATA_OVERRUN: | |
1104 | case CS_COMMAND_OVERRUN: | |
1105 | case CS_STATUS_OVERRUN: | |
1106 | case CS_BAD_MESSAGE: | |
1107 | case CS_NO_MESSAGE_OUT: | |
1108 | case CS_EXT_ID_FAILED: | |
1109 | case CS_IDE_MSG_FAILED: | |
1110 | case CS_ABORT_MSG_FAILED: | |
1111 | case CS_NOP_MSG_FAILED: | |
1112 | case CS_PARITY_ERROR_MSG_FAILED: | |
1113 | case CS_DEVICE_RESET_MSG_FAILED: | |
1114 | case CS_ID_MSG_FAILED: | |
1115 | case CS_UNEXP_BUS_FREE: | |
1116 | host_status = DID_ERROR; | |
1117 | break; | |
1118 | case CS_DATA_UNDERRUN: | |
1119 | host_status = DID_OK; | |
1120 | break; | |
1121 | default: | |
585a8a59 | 1122 | printk(KERN_EMERG "qlogicpti%d: unknown completion status 0x%04x\n", |
1da177e4 LT |
1123 | id, sts->completion_status); |
1124 | host_status = DID_ERROR; | |
1125 | break; | |
1126 | } | |
1127 | ||
1128 | return (sts->scsi_status & STATUS_MASK) | (host_status << 16); | |
1129 | } | |
1130 | ||
1131 | static struct scsi_cmnd *qlogicpti_intr_handler(struct qlogicpti *qpti) | |
1132 | { | |
1133 | struct scsi_cmnd *Cmnd, *done_queue = NULL; | |
1134 | struct Status_Entry *sts; | |
1135 | u_int in_ptr, out_ptr; | |
1136 | ||
1137 | if (!(sbus_readw(qpti->qregs + SBUS_STAT) & SBUS_STAT_RINT)) | |
1138 | return NULL; | |
1139 | ||
1140 | in_ptr = sbus_readw(qpti->qregs + MBOX5); | |
1141 | sbus_writew(HCCTRL_CRIRQ, qpti->qregs + HCCTRL); | |
1142 | if (sbus_readw(qpti->qregs + SBUS_SEMAPHORE) & SBUS_SEMAPHORE_LCK) { | |
1143 | switch (sbus_readw(qpti->qregs + MBOX0)) { | |
1144 | case ASYNC_SCSI_BUS_RESET: | |
1145 | case EXECUTION_TIMEOUT_RESET: | |
1146 | qpti->send_marker = 1; | |
1147 | break; | |
1148 | case INVALID_COMMAND: | |
1149 | case HOST_INTERFACE_ERROR: | |
1150 | case COMMAND_ERROR: | |
1151 | case COMMAND_PARAM_ERROR: | |
1152 | break; | |
1153 | }; | |
1154 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); | |
1155 | } | |
1156 | ||
1157 | /* This looks like a network driver! */ | |
1158 | out_ptr = qpti->res_out_ptr; | |
1159 | while (out_ptr != in_ptr) { | |
1160 | u_int cmd_slot; | |
1161 | ||
1162 | sts = (struct Status_Entry *) &qpti->res_cpu[out_ptr]; | |
1163 | out_ptr = NEXT_RES_PTR(out_ptr); | |
1164 | ||
1165 | /* We store an index in the handle, not the pointer in | |
1166 | * some form. This avoids problems due to the fact | |
1167 | * that the handle provided is only 32-bits. -DaveM | |
1168 | */ | |
1169 | cmd_slot = sts->handle; | |
1170 | Cmnd = qpti->cmd_slots[cmd_slot]; | |
1171 | qpti->cmd_slots[cmd_slot] = NULL; | |
1172 | ||
1173 | if (sts->completion_status == CS_RESET_OCCURRED || | |
1174 | sts->completion_status == CS_ABORTED || | |
1175 | (sts->status_flags & STF_BUS_RESET)) | |
1176 | qpti->send_marker = 1; | |
1177 | ||
1178 | if (sts->state_flags & SF_GOT_SENSE) | |
1179 | memcpy(Cmnd->sense_buffer, sts->req_sense_data, | |
b80ca4f7 | 1180 | SCSI_SENSE_BUFFERSIZE); |
1da177e4 LT |
1181 | |
1182 | if (sts->hdr.entry_type == ENTRY_STATUS) | |
1183 | Cmnd->result = | |
1184 | qlogicpti_return_status(sts, qpti->qpti_id); | |
1185 | else | |
1186 | Cmnd->result = DID_ERROR << 16; | |
1187 | ||
dfb104ff | 1188 | if (scsi_bufflen(Cmnd)) |
5dc2536b | 1189 | dma_unmap_sg(&qpti->op->dev, |
738f2b7b DM |
1190 | scsi_sglist(Cmnd), scsi_sg_count(Cmnd), |
1191 | Cmnd->sc_data_direction); | |
dfb104ff | 1192 | |
1da177e4 LT |
1193 | qpti->cmd_count[Cmnd->device->id]--; |
1194 | sbus_writew(out_ptr, qpti->qregs + MBOX5); | |
1195 | Cmnd->host_scribble = (unsigned char *) done_queue; | |
1196 | done_queue = Cmnd; | |
1197 | } | |
1198 | qpti->res_out_ptr = out_ptr; | |
1199 | ||
1200 | return done_queue; | |
1201 | } | |
1202 | ||
7d12e780 | 1203 | static irqreturn_t qpti_intr(int irq, void *dev_id) |
1da177e4 LT |
1204 | { |
1205 | struct qlogicpti *qpti = dev_id; | |
1206 | unsigned long flags; | |
1207 | struct scsi_cmnd *dq; | |
1208 | ||
1209 | spin_lock_irqsave(qpti->qhost->host_lock, flags); | |
1210 | dq = qlogicpti_intr_handler(qpti); | |
1211 | ||
1212 | if (dq != NULL) { | |
1213 | do { | |
1214 | struct scsi_cmnd *next; | |
1215 | ||
1216 | next = (struct scsi_cmnd *) dq->host_scribble; | |
1217 | dq->scsi_done(dq); | |
1218 | dq = next; | |
1219 | } while (dq != NULL); | |
1220 | } | |
1221 | spin_unlock_irqrestore(qpti->qhost->host_lock, flags); | |
1222 | ||
1223 | return IRQ_HANDLED; | |
1224 | } | |
1225 | ||
1226 | static int qlogicpti_abort(struct scsi_cmnd *Cmnd) | |
1227 | { | |
1228 | u_short param[6]; | |
1229 | struct Scsi_Host *host = Cmnd->device->host; | |
1230 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; | |
1231 | int return_status = SUCCESS; | |
1232 | u32 cmd_cookie; | |
1233 | int i; | |
1234 | ||
585a8a59 MF |
1235 | printk(KERN_WARNING "qlogicpti%d: Aborting cmd for tgt[%d] lun[%d]\n", |
1236 | qpti->qpti_id, (int)Cmnd->device->id, (int)Cmnd->device->lun); | |
1da177e4 LT |
1237 | |
1238 | qlogicpti_disable_irqs(qpti); | |
1239 | ||
1240 | /* Find the 32-bit cookie we gave to the firmware for | |
1241 | * this command. | |
1242 | */ | |
1243 | for (i = 0; i < QLOGICPTI_REQ_QUEUE_LEN + 1; i++) | |
1244 | if (qpti->cmd_slots[i] == Cmnd) | |
1245 | break; | |
1246 | cmd_cookie = i; | |
1247 | ||
1248 | param[0] = MBOX_ABORT; | |
1249 | param[1] = (((u_short) Cmnd->device->id) << 8) | Cmnd->device->lun; | |
1250 | param[2] = cmd_cookie >> 16; | |
1251 | param[3] = cmd_cookie & 0xffff; | |
1252 | if (qlogicpti_mbox_command(qpti, param, 0) || | |
1253 | (param[0] != MBOX_COMMAND_COMPLETE)) { | |
585a8a59 MF |
1254 | printk(KERN_EMERG "qlogicpti%d: scsi abort failure: %x\n", |
1255 | qpti->qpti_id, param[0]); | |
1da177e4 LT |
1256 | return_status = FAILED; |
1257 | } | |
1258 | ||
1259 | qlogicpti_enable_irqs(qpti); | |
1260 | ||
1261 | return return_status; | |
1262 | } | |
1263 | ||
fbf25233 | 1264 | static int qlogicpti_reset(struct scsi_cmnd *Cmnd) |
1da177e4 LT |
1265 | { |
1266 | u_short param[6]; | |
fbf25233 | 1267 | struct Scsi_Host *host = Cmnd->device->host; |
1da177e4 LT |
1268 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; |
1269 | int return_status = SUCCESS; | |
1270 | ||
585a8a59 MF |
1271 | printk(KERN_WARNING "qlogicpti%d: Resetting SCSI bus!\n", |
1272 | qpti->qpti_id); | |
1da177e4 LT |
1273 | |
1274 | qlogicpti_disable_irqs(qpti); | |
1275 | ||
1276 | param[0] = MBOX_BUS_RESET; | |
1277 | param[1] = qpti->host_param.bus_reset_delay; | |
1278 | if (qlogicpti_mbox_command(qpti, param, 0) || | |
1279 | (param[0] != MBOX_COMMAND_COMPLETE)) { | |
585a8a59 MF |
1280 | printk(KERN_EMERG "qlogicisp%d: scsi bus reset failure: %x\n", |
1281 | qpti->qpti_id, param[0]); | |
1da177e4 LT |
1282 | return_status = FAILED; |
1283 | } | |
1284 | ||
1285 | qlogicpti_enable_irqs(qpti); | |
1286 | ||
1287 | return return_status; | |
1288 | } | |
1289 | ||
3d4253d9 DM |
1290 | static struct scsi_host_template qpti_template = { |
1291 | .module = THIS_MODULE, | |
1292 | .name = "qlogicpti", | |
1da177e4 | 1293 | .info = qlogicpti_info, |
9ec76fbf MW |
1294 | .queuecommand = qlogicpti_queuecommand, |
1295 | .slave_configure = qlogicpti_slave_configure, | |
1da177e4 | 1296 | .eh_abort_handler = qlogicpti_abort, |
af167bc4 | 1297 | .eh_host_reset_handler = qlogicpti_reset, |
1da177e4 LT |
1298 | .can_queue = QLOGICPTI_REQ_QUEUE_LEN, |
1299 | .this_id = 7, | |
1300 | .sg_tablesize = QLOGICPTI_MAX_SG(QLOGICPTI_REQ_QUEUE_LEN), | |
1da177e4 LT |
1301 | }; |
1302 | ||
b1608d69 | 1303 | static const struct of_device_id qpti_match[]; |
6f039790 | 1304 | static int qpti_sbus_probe(struct platform_device *op) |
3d4253d9 | 1305 | { |
61c7a080 | 1306 | struct device_node *dp = op->dev.of_node; |
3d4253d9 DM |
1307 | struct Scsi_Host *host; |
1308 | struct qlogicpti *qpti; | |
5dc2536b | 1309 | static int nqptis; |
ccf0dec6 | 1310 | const char *fcode; |
3d4253d9 DM |
1311 | |
1312 | /* Sometimes Antares cards come up not completely | |
1313 | * setup, and we get a report of a zero IRQ. | |
1314 | */ | |
1636f8ac | 1315 | if (op->archdata.irqs[0] == 0) |
3d4253d9 DM |
1316 | return -ENODEV; |
1317 | ||
f7e8d9f8 | 1318 | host = scsi_host_alloc(&qpti_template, sizeof(struct qlogicpti)); |
3d4253d9 DM |
1319 | if (!host) |
1320 | return -ENOMEM; | |
1321 | ||
5dc2536b | 1322 | qpti = shost_priv(host); |
3d4253d9 DM |
1323 | |
1324 | host->max_id = MAX_TARGETS; | |
1325 | qpti->qhost = host; | |
5dc2536b | 1326 | qpti->op = op; |
3d4253d9 | 1327 | qpti->qpti_id = nqptis; |
7f8e12f1 | 1328 | qpti->is_pti = !of_node_name_eq(op->dev.of_node, "QLGC,isp"); |
3d4253d9 DM |
1329 | |
1330 | if (qpti_map_regs(qpti) < 0) | |
1331 | goto fail_unlink; | |
1332 | ||
1333 | if (qpti_register_irq(qpti) < 0) | |
1334 | goto fail_unmap_regs; | |
1335 | ||
1336 | qpti_get_scsi_id(qpti); | |
1337 | qpti_get_bursts(qpti); | |
1338 | qpti_get_clock(qpti); | |
1339 | ||
1340 | /* Clear out scsi_cmnd array. */ | |
1341 | memset(qpti->cmd_slots, 0, sizeof(qpti->cmd_slots)); | |
1342 | ||
1343 | if (qpti_map_queues(qpti) < 0) | |
1344 | goto fail_free_irq; | |
1345 | ||
1346 | /* Load the firmware. */ | |
1347 | if (qlogicpti_load_firmware(qpti)) | |
1348 | goto fail_unmap_queues; | |
1349 | if (qpti->is_pti) { | |
1350 | /* Check the PTI status reg. */ | |
1351 | if (qlogicpti_verify_tmon(qpti)) | |
1352 | goto fail_unmap_queues; | |
1353 | } | |
1354 | ||
1355 | /* Reset the ISP and init res/req queues. */ | |
1356 | if (qlogicpti_reset_hardware(host)) | |
1357 | goto fail_unmap_queues; | |
1358 | ||
3d4253d9 DM |
1359 | printk("(Firmware v%d.%d.%d)", qpti->fware_majrev, |
1360 | qpti->fware_minrev, qpti->fware_micrev); | |
1361 | ||
1362 | fcode = of_get_property(dp, "isp-fcode", NULL); | |
1363 | if (fcode && fcode[0]) | |
585a8a59 | 1364 | printk("(FCode %s)", fcode); |
3d4253d9 DM |
1365 | if (of_find_property(dp, "differential", NULL) != NULL) |
1366 | qpti->differential = 1; | |
1367 | ||
585a8a59 MF |
1368 | printk("\nqlogicpti%d: [%s Wide, using %s interface]\n", |
1369 | qpti->qpti_id, | |
3d4253d9 DM |
1370 | (qpti->ultra ? "Ultra" : "Fast"), |
1371 | (qpti->differential ? "differential" : "single ended")); | |
1372 | ||
5dc2536b | 1373 | if (scsi_add_host(host, &op->dev)) { |
585a8a59 MF |
1374 | printk("qlogicpti%d: Failed scsi_add_host\n", qpti->qpti_id); |
1375 | goto fail_unmap_queues; | |
1376 | } | |
1377 | ||
5dc2536b | 1378 | dev_set_drvdata(&op->dev, qpti); |
3d4253d9 DM |
1379 | |
1380 | qpti_chain_add(qpti); | |
1381 | ||
1382 | scsi_scan_host(host); | |
1383 | nqptis++; | |
1384 | ||
1385 | return 0; | |
1386 | ||
1387 | fail_unmap_queues: | |
1388 | #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) | |
5dc2536b | 1389 | dma_free_coherent(&op->dev, |
738f2b7b DM |
1390 | QSIZE(RES_QUEUE_LEN), |
1391 | qpti->res_cpu, qpti->res_dvma); | |
5dc2536b | 1392 | dma_free_coherent(&op->dev, |
738f2b7b DM |
1393 | QSIZE(QLOGICPTI_REQ_QUEUE_LEN), |
1394 | qpti->req_cpu, qpti->req_dvma); | |
3d4253d9 DM |
1395 | #undef QSIZE |
1396 | ||
51b910c3 CJ |
1397 | fail_free_irq: |
1398 | free_irq(qpti->irq, qpti); | |
1399 | ||
3d4253d9 | 1400 | fail_unmap_regs: |
5dc2536b DM |
1401 | of_iounmap(&op->resource[0], qpti->qregs, |
1402 | resource_size(&op->resource[0])); | |
3d4253d9 | 1403 | if (qpti->is_pti) |
5dc2536b DM |
1404 | of_iounmap(&op->resource[0], qpti->sreg, |
1405 | sizeof(unsigned char)); | |
3d4253d9 | 1406 | |
3d4253d9 DM |
1407 | fail_unlink: |
1408 | scsi_host_put(host); | |
1409 | ||
1410 | return -ENODEV; | |
1411 | } | |
1412 | ||
6f039790 | 1413 | static int qpti_sbus_remove(struct platform_device *op) |
3d4253d9 | 1414 | { |
5dc2536b | 1415 | struct qlogicpti *qpti = dev_get_drvdata(&op->dev); |
3d4253d9 DM |
1416 | |
1417 | qpti_chain_del(qpti); | |
1418 | ||
1419 | scsi_remove_host(qpti->qhost); | |
1420 | ||
1421 | /* Shut up the card. */ | |
1422 | sbus_writew(0, qpti->qregs + SBUS_CTRL); | |
1423 | ||
1424 | /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */ | |
1425 | free_irq(qpti->irq, qpti); | |
1426 | ||
1427 | #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) | |
5dc2536b | 1428 | dma_free_coherent(&op->dev, |
738f2b7b DM |
1429 | QSIZE(RES_QUEUE_LEN), |
1430 | qpti->res_cpu, qpti->res_dvma); | |
5dc2536b | 1431 | dma_free_coherent(&op->dev, |
738f2b7b DM |
1432 | QSIZE(QLOGICPTI_REQ_QUEUE_LEN), |
1433 | qpti->req_cpu, qpti->req_dvma); | |
3d4253d9 DM |
1434 | #undef QSIZE |
1435 | ||
5dc2536b DM |
1436 | of_iounmap(&op->resource[0], qpti->qregs, |
1437 | resource_size(&op->resource[0])); | |
3d4253d9 | 1438 | if (qpti->is_pti) |
5dc2536b | 1439 | of_iounmap(&op->resource[0], qpti->sreg, sizeof(unsigned char)); |
3d4253d9 DM |
1440 | |
1441 | scsi_host_put(qpti->qhost); | |
1442 | ||
1443 | return 0; | |
1444 | } | |
1445 | ||
fd098316 | 1446 | static const struct of_device_id qpti_match[] = { |
3d4253d9 DM |
1447 | { |
1448 | .name = "ptisp", | |
3d4253d9 DM |
1449 | }, |
1450 | { | |
1451 | .name = "PTI,ptisp", | |
3d4253d9 DM |
1452 | }, |
1453 | { | |
1454 | .name = "QLGC,isp", | |
3d4253d9 DM |
1455 | }, |
1456 | { | |
1457 | .name = "SUNW,isp", | |
3d4253d9 DM |
1458 | }, |
1459 | {}, | |
1460 | }; | |
1461 | MODULE_DEVICE_TABLE(of, qpti_match); | |
1462 | ||
4ebb24f7 | 1463 | static struct platform_driver qpti_sbus_driver = { |
4018294b GL |
1464 | .driver = { |
1465 | .name = "qpti", | |
4018294b GL |
1466 | .of_match_table = qpti_match, |
1467 | }, | |
3d4253d9 | 1468 | .probe = qpti_sbus_probe, |
6f039790 | 1469 | .remove = qpti_sbus_remove, |
3d4253d9 | 1470 | }; |
1da177e4 | 1471 | |
3d4253d9 DM |
1472 | static int __init qpti_init(void) |
1473 | { | |
4ebb24f7 | 1474 | return platform_driver_register(&qpti_sbus_driver); |
3d4253d9 DM |
1475 | } |
1476 | ||
1477 | static void __exit qpti_exit(void) | |
1478 | { | |
4ebb24f7 | 1479 | platform_driver_unregister(&qpti_sbus_driver); |
3d4253d9 | 1480 | } |
1da177e4 | 1481 | |
3d4253d9 DM |
1482 | MODULE_DESCRIPTION("QlogicISP SBUS driver"); |
1483 | MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); | |
1da177e4 | 1484 | MODULE_LICENSE("GPL"); |
5dc2536b | 1485 | MODULE_VERSION("2.1"); |
f894e74d | 1486 | MODULE_FIRMWARE("qlogic/isp1000.bin"); |
1da177e4 | 1487 | |
3d4253d9 DM |
1488 | module_init(qpti_init); |
1489 | module_exit(qpti_exit); |