1 /* qlogicpti.c: Performance Technologies QlogicISP sbus card driver.
3 * Copyright (C) 1996, 2006, 2008 David S. Miller (davem@davemloft.net)
5 * A lot of this driver was directly stolen from Erik H. Moe's PCI
6 * Qlogic ISP driver. Mucho kudos to him for this code.
8 * An even bigger kudos to John Grana at Performance Technologies
9 * for providing me with the hardware to write this driver, you rule
12 * May, 2, 1997: Added support for QLGC,isp --jj
15 #include <linux/kernel.h>
16 #include <linux/delay.h>
17 #include <linux/types.h>
18 #include <linux/string.h>
19 #include <linux/slab.h>
20 #include <linux/blkdev.h>
21 #include <linux/proc_fs.h>
22 #include <linux/stat.h>
23 #include <linux/init.h>
24 #include <linux/spinlock.h>
25 #include <linux/interrupt.h>
26 #include <linux/module.h>
27 #include <linux/jiffies.h>
28 #include <linux/dma-mapping.h>
30 #include <linux/of_device.h>
31 #include <linux/firmware.h>
33 #include <asm/byteorder.h>
35 #include "qlogicpti.h"
38 #include <asm/system.h>
39 #include <asm/ptrace.h>
40 #include <asm/pgtable.h>
41 #include <asm/oplib.h>
45 #include <scsi/scsi.h>
46 #include <scsi/scsi_cmnd.h>
47 #include <scsi/scsi_device.h>
48 #include <scsi/scsi_eh.h>
49 #include <scsi/scsi_tcq.h>
50 #include <scsi/scsi_host.h>
52 #define MAX_TARGETS 16
53 #define MAX_LUNS 8 /* 32 for 1.31 F/W */
55 #define DEFAULT_LOOP_COUNT 10000
57 static struct qlogicpti
*qptichain
= NULL
;
58 static DEFINE_SPINLOCK(qptichain_lock
);
60 #define PACKB(a, b) (((a)<<4)|(b))
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 */
132 #define MAX_MBOX_COMMAND ARRAY_SIZE(mbox_param)
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)
140 static inline void qlogicpti_enable_irqs(struct qlogicpti
*qpti
)
142 sbus_writew(SBUS_CTRL_ERIRQ
| SBUS_CTRL_GENAB
,
143 qpti
->qregs
+ SBUS_CTRL
);
146 static inline void qlogicpti_disable_irqs(struct qlogicpti
*qpti
)
148 sbus_writew(0, qpti
->qregs
+ SBUS_CTRL
);
151 static inline void set_sbus_cfg1(struct qlogicpti
*qpti
)
154 u8 bursts
= qpti
->bursts
;
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
161 if (sbus_can_burst64() && (bursts
& DMA_BURST64
)) {
162 val
= (SBUS_CFG1_BENAB
| SBUS_CFG1_B64
);
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
);
172 val
= 0; /* No sbus bursts for you... */
174 sbus_writew(val
, qpti
->qregs
+ SBUS_CFG1
);
177 static int qlogicpti_mbox_command(struct qlogicpti
*qpti
, u_short param
[], int force
)
182 if (mbox_param
[param
[0]] == 0)
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
);
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
)) {
197 printk(KERN_EMERG
"qlogicpti%d: mbox_command loop timeout #1\n",
200 /* Write mailbox command registers. */
201 switch (mbox_param
[param
[0]] >> 4) {
202 case 6: sbus_writew(param
[5], qpti
->qregs
+ MBOX5
);
203 case 5: sbus_writew(param
[4], qpti
->qregs
+ MBOX4
);
204 case 4: sbus_writew(param
[3], qpti
->qregs
+ MBOX3
);
205 case 3: sbus_writew(param
[2], qpti
->qregs
+ MBOX2
);
206 case 2: sbus_writew(param
[1], qpti
->qregs
+ MBOX1
);
207 case 1: sbus_writew(param
[0], qpti
->qregs
+ MBOX0
);
210 /* Clear RISC interrupt. */
211 tmp
= sbus_readw(qpti
->qregs
+ HCCTRL
);
213 sbus_writew(tmp
, qpti
->qregs
+ HCCTRL
);
215 /* Clear SBUS semaphore. */
216 sbus_writew(0, qpti
->qregs
+ SBUS_SEMAPHORE
);
218 /* Set HOST interrupt. */
219 tmp
= sbus_readw(qpti
->qregs
+ HCCTRL
);
221 sbus_writew(tmp
, qpti
->qregs
+ HCCTRL
);
223 /* Wait for HOST interrupt clears. */
224 loop_count
= DEFAULT_LOOP_COUNT
;
225 while (--loop_count
&&
226 (sbus_readw(qpti
->qregs
+ HCCTRL
) & HCCTRL_CRIRQ
))
229 printk(KERN_EMERG
"qlogicpti%d: mbox_command[%04x] loop timeout #2\n",
230 qpti
->qpti_id
, param
[0]);
232 /* Wait for SBUS semaphore to get set. */
233 loop_count
= DEFAULT_LOOP_COUNT
;
234 while (--loop_count
&&
235 !(sbus_readw(qpti
->qregs
+ SBUS_SEMAPHORE
) & SBUS_SEMAPHORE_LCK
)) {
238 /* Workaround for some buggy chips. */
239 if (sbus_readw(qpti
->qregs
+ MBOX0
) & 0x4000)
243 printk(KERN_EMERG
"qlogicpti%d: mbox_command[%04x] loop timeout #3\n",
244 qpti
->qpti_id
, param
[0]);
246 /* Wait for MBOX busy condition to go away. */
247 loop_count
= DEFAULT_LOOP_COUNT
;
248 while (--loop_count
&& (sbus_readw(qpti
->qregs
+ MBOX0
) == 0x04))
251 printk(KERN_EMERG
"qlogicpti%d: mbox_command[%04x] loop timeout #4\n",
252 qpti
->qpti_id
, param
[0]);
254 /* Read back output parameters. */
255 switch (mbox_param
[param
[0]] & 0xf) {
256 case 6: param
[5] = sbus_readw(qpti
->qregs
+ MBOX5
);
257 case 5: param
[4] = sbus_readw(qpti
->qregs
+ MBOX4
);
258 case 4: param
[3] = sbus_readw(qpti
->qregs
+ MBOX3
);
259 case 3: param
[2] = sbus_readw(qpti
->qregs
+ MBOX2
);
260 case 2: param
[1] = sbus_readw(qpti
->qregs
+ MBOX1
);
261 case 1: param
[0] = sbus_readw(qpti
->qregs
+ MBOX0
);
264 /* Clear RISC interrupt. */
265 tmp
= sbus_readw(qpti
->qregs
+ HCCTRL
);
267 sbus_writew(tmp
, qpti
->qregs
+ HCCTRL
);
269 /* Release SBUS semaphore. */
270 tmp
= sbus_readw(qpti
->qregs
+ SBUS_SEMAPHORE
);
271 tmp
&= ~(SBUS_SEMAPHORE_LCK
);
272 sbus_writew(tmp
, qpti
->qregs
+ SBUS_SEMAPHORE
);
278 static inline void qlogicpti_set_hostdev_defaults(struct qlogicpti
*qpti
)
282 qpti
->host_param
.initiator_scsi_id
= qpti
->scsi_id
;
283 qpti
->host_param
.bus_reset_delay
= 3;
284 qpti
->host_param
.retry_count
= 0;
285 qpti
->host_param
.retry_delay
= 5;
286 qpti
->host_param
.async_data_setup_time
= 3;
287 qpti
->host_param
.req_ack_active_negation
= 1;
288 qpti
->host_param
.data_line_active_negation
= 1;
289 qpti
->host_param
.data_dma_burst_enable
= 1;
290 qpti
->host_param
.command_dma_burst_enable
= 1;
291 qpti
->host_param
.tag_aging
= 8;
292 qpti
->host_param
.selection_timeout
= 250;
293 qpti
->host_param
.max_queue_depth
= 256;
295 for(i
= 0; i
< MAX_TARGETS
; i
++) {
297 * disconnect, parity, arq, reneg on reset, and, oddly enough
298 * tags...the midlayer's notion of tagged support has to match
299 * our device settings, and since we base whether we enable a
300 * tag on a per-cmnd basis upon what the midlayer sez, we
301 * actually enable the capability here.
303 qpti
->dev_param
[i
].device_flags
= 0xcd;
304 qpti
->dev_param
[i
].execution_throttle
= 16;
306 qpti
->dev_param
[i
].synchronous_period
= 12;
307 qpti
->dev_param
[i
].synchronous_offset
= 8;
309 qpti
->dev_param
[i
].synchronous_period
= 25;
310 qpti
->dev_param
[i
].synchronous_offset
= 12;
312 qpti
->dev_param
[i
].device_enable
= 1;
316 static int qlogicpti_reset_hardware(struct Scsi_Host
*host
)
318 struct qlogicpti
*qpti
= (struct qlogicpti
*) host
->hostdata
;
320 unsigned short risc_code_addr
;
324 risc_code_addr
= 0x1000; /* all load addresses are at 0x1000 */
326 spin_lock_irqsave(host
->host_lock
, flags
);
328 sbus_writew(HCCTRL_PAUSE
, qpti
->qregs
+ HCCTRL
);
330 /* Only reset the scsi bus if it is not free. */
331 if (sbus_readw(qpti
->qregs
+ CPU_PCTRL
) & CPU_PCTRL_BSY
) {
332 sbus_writew(CPU_ORIDE_RMOD
, qpti
->qregs
+ CPU_ORIDE
);
333 sbus_writew(CPU_CMD_BRESET
, qpti
->qregs
+ CPU_CMD
);
337 sbus_writew(SBUS_CTRL_RESET
, qpti
->qregs
+ SBUS_CTRL
);
338 sbus_writew((DMA_CTRL_CCLEAR
| DMA_CTRL_CIRQ
), qpti
->qregs
+ CMD_DMA_CTRL
);
339 sbus_writew((DMA_CTRL_CCLEAR
| DMA_CTRL_CIRQ
), qpti
->qregs
+ DATA_DMA_CTRL
);
341 loop_count
= DEFAULT_LOOP_COUNT
;
342 while (--loop_count
&& ((sbus_readw(qpti
->qregs
+ MBOX0
) & 0xff) == 0x04))
345 printk(KERN_EMERG
"qlogicpti%d: reset_hardware loop timeout\n",
348 sbus_writew(HCCTRL_PAUSE
, qpti
->qregs
+ HCCTRL
);
350 qlogicpti_enable_irqs(qpti
);
352 if (sbus_readw(qpti
->qregs
+ RISC_PSR
) & RISC_PSR_ULTRA
) {
354 sbus_writew((RISC_MTREG_P0ULTRA
| RISC_MTREG_P1ULTRA
),
355 qpti
->qregs
+ RISC_MTREG
);
358 sbus_writew((RISC_MTREG_P0DFLT
| RISC_MTREG_P1DFLT
),
359 qpti
->qregs
+ RISC_MTREG
);
362 /* reset adapter and per-device default values. */
363 /* do it after finding out whether we're ultra mode capable */
364 qlogicpti_set_hostdev_defaults(qpti
);
366 /* Release the RISC processor. */
367 sbus_writew(HCCTRL_REL
, qpti
->qregs
+ HCCTRL
);
369 /* Get RISC to start executing the firmware code. */
370 param
[0] = MBOX_EXEC_FIRMWARE
;
371 param
[1] = risc_code_addr
;
372 if (qlogicpti_mbox_command(qpti
, param
, 1)) {
373 printk(KERN_EMERG
"qlogicpti%d: Cannot execute ISP firmware.\n",
375 spin_unlock_irqrestore(host
->host_lock
, flags
);
379 /* Set initiator scsi ID. */
380 param
[0] = MBOX_SET_INIT_SCSI_ID
;
381 param
[1] = qpti
->host_param
.initiator_scsi_id
;
382 if (qlogicpti_mbox_command(qpti
, param
, 1) ||
383 (param
[0] != MBOX_COMMAND_COMPLETE
)) {
384 printk(KERN_EMERG
"qlogicpti%d: Cannot set initiator SCSI ID.\n",
386 spin_unlock_irqrestore(host
->host_lock
, flags
);
390 /* Initialize state of the queues, both hw and sw. */
391 qpti
->req_in_ptr
= qpti
->res_out_ptr
= 0;
393 param
[0] = MBOX_INIT_RES_QUEUE
;
394 param
[1] = RES_QUEUE_LEN
+ 1;
395 param
[2] = (u_short
) (qpti
->res_dvma
>> 16);
396 param
[3] = (u_short
) (qpti
->res_dvma
& 0xffff);
397 param
[4] = param
[5] = 0;
398 if (qlogicpti_mbox_command(qpti
, param
, 1)) {
399 printk(KERN_EMERG
"qlogicpti%d: Cannot init response queue.\n",
401 spin_unlock_irqrestore(host
->host_lock
, flags
);
405 param
[0] = MBOX_INIT_REQ_QUEUE
;
406 param
[1] = QLOGICPTI_REQ_QUEUE_LEN
+ 1;
407 param
[2] = (u_short
) (qpti
->req_dvma
>> 16);
408 param
[3] = (u_short
) (qpti
->req_dvma
& 0xffff);
409 param
[4] = param
[5] = 0;
410 if (qlogicpti_mbox_command(qpti
, param
, 1)) {
411 printk(KERN_EMERG
"qlogicpti%d: Cannot init request queue.\n",
413 spin_unlock_irqrestore(host
->host_lock
, flags
);
417 param
[0] = MBOX_SET_RETRY_COUNT
;
418 param
[1] = qpti
->host_param
.retry_count
;
419 param
[2] = qpti
->host_param
.retry_delay
;
420 qlogicpti_mbox_command(qpti
, param
, 0);
422 param
[0] = MBOX_SET_TAG_AGE_LIMIT
;
423 param
[1] = qpti
->host_param
.tag_aging
;
424 qlogicpti_mbox_command(qpti
, param
, 0);
426 for (i
= 0; i
< MAX_TARGETS
; i
++) {
427 param
[0] = MBOX_GET_DEV_QUEUE_PARAMS
;
429 qlogicpti_mbox_command(qpti
, param
, 0);
432 param
[0] = MBOX_GET_FIRMWARE_STATUS
;
433 qlogicpti_mbox_command(qpti
, param
, 0);
435 param
[0] = MBOX_SET_SELECT_TIMEOUT
;
436 param
[1] = qpti
->host_param
.selection_timeout
;
437 qlogicpti_mbox_command(qpti
, param
, 0);
439 for (i
= 0; i
< MAX_TARGETS
; i
++) {
440 param
[0] = MBOX_SET_TARGET_PARAMS
;
442 param
[2] = (qpti
->dev_param
[i
].device_flags
<< 8);
444 * Since we're now loading 1.31 f/w, force narrow/async.
447 param
[3] = 0; /* no offset, we do not have sync mode yet */
448 qlogicpti_mbox_command(qpti
, param
, 0);
452 * Always (sigh) do an initial bus reset (kicks f/w).
454 param
[0] = MBOX_BUS_RESET
;
455 param
[1] = qpti
->host_param
.bus_reset_delay
;
456 qlogicpti_mbox_command(qpti
, param
, 0);
457 qpti
->send_marker
= 1;
459 spin_unlock_irqrestore(host
->host_lock
, flags
);
463 #define PTI_RESET_LIMIT 400
465 static int __devinit
qlogicpti_load_firmware(struct qlogicpti
*qpti
)
467 const struct firmware
*fw
;
468 const char fwname
[] = "qlogic/isp1000.bin";
469 const __le16
*fw_data
;
470 struct Scsi_Host
*host
= qpti
->qhost
;
471 unsigned short csum
= 0;
472 unsigned short param
[6];
473 unsigned short risc_code_addr
, risc_code_length
;
478 err
= request_firmware(&fw
, fwname
, &qpti
->op
->dev
);
480 printk(KERN_ERR
"Failed to load image \"%s\" err %d\n",
485 printk(KERN_ERR
"Bogus length %zu in image \"%s\"\n",
490 fw_data
= (const __le16
*)&fw
->data
[0];
491 risc_code_addr
= 0x1000; /* all f/w modules load at 0x1000 */
492 risc_code_length
= fw
->size
/ 2;
494 spin_lock_irqsave(host
->host_lock
, flags
);
496 /* Verify the checksum twice, one before loading it, and once
497 * afterwards via the mailbox commands.
499 for (i
= 0; i
< risc_code_length
; i
++)
500 csum
+= __le16_to_cpu(fw_data
[i
]);
502 printk(KERN_EMERG
"qlogicpti%d: Aieee, firmware checksum failed!",
507 sbus_writew(SBUS_CTRL_RESET
, qpti
->qregs
+ SBUS_CTRL
);
508 sbus_writew((DMA_CTRL_CCLEAR
| DMA_CTRL_CIRQ
), qpti
->qregs
+ CMD_DMA_CTRL
);
509 sbus_writew((DMA_CTRL_CCLEAR
| DMA_CTRL_CIRQ
), qpti
->qregs
+ DATA_DMA_CTRL
);
510 timeout
= PTI_RESET_LIMIT
;
511 while (--timeout
&& (sbus_readw(qpti
->qregs
+ SBUS_CTRL
) & SBUS_CTRL_RESET
))
514 printk(KERN_EMERG
"qlogicpti%d: Cannot reset the ISP.", qpti
->qpti_id
);
519 sbus_writew(HCCTRL_RESET
, qpti
->qregs
+ HCCTRL
);
522 sbus_writew((SBUS_CTRL_GENAB
| SBUS_CTRL_ERIRQ
), qpti
->qregs
+ SBUS_CTRL
);
524 sbus_writew(0, qpti
->qregs
+ SBUS_SEMAPHORE
);
526 if (sbus_readw(qpti
->qregs
+ RISC_PSR
) & RISC_PSR_ULTRA
) {
528 sbus_writew((RISC_MTREG_P0ULTRA
| RISC_MTREG_P1ULTRA
),
529 qpti
->qregs
+ RISC_MTREG
);
532 sbus_writew((RISC_MTREG_P0DFLT
| RISC_MTREG_P1DFLT
),
533 qpti
->qregs
+ RISC_MTREG
);
536 sbus_writew(HCCTRL_REL
, qpti
->qregs
+ HCCTRL
);
538 /* Pin lines are only stable while RISC is paused. */
539 sbus_writew(HCCTRL_PAUSE
, qpti
->qregs
+ HCCTRL
);
540 if (sbus_readw(qpti
->qregs
+ CPU_PDIFF
) & CPU_PDIFF_MODE
)
541 qpti
->differential
= 1;
543 qpti
->differential
= 0;
544 sbus_writew(HCCTRL_REL
, qpti
->qregs
+ HCCTRL
);
546 /* This shouldn't be necessary- we've reset things so we should be
547 running from the ROM now.. */
549 param
[0] = MBOX_STOP_FIRMWARE
;
550 param
[1] = param
[2] = param
[3] = param
[4] = param
[5] = 0;
551 if (qlogicpti_mbox_command(qpti
, param
, 1)) {
552 printk(KERN_EMERG
"qlogicpti%d: Cannot stop firmware for reload.\n",
559 for (i
= 0; i
< risc_code_length
; i
++) {
560 param
[0] = MBOX_WRITE_RAM_WORD
;
561 param
[1] = risc_code_addr
+ i
;
562 param
[2] = __le16_to_cpu(fw_data
[i
]);
563 if (qlogicpti_mbox_command(qpti
, param
, 1) ||
564 param
[0] != MBOX_COMMAND_COMPLETE
) {
565 printk("qlogicpti%d: Firmware dload failed, I'm bolixed!\n",
572 /* Reset the ISP again. */
573 sbus_writew(HCCTRL_RESET
, qpti
->qregs
+ HCCTRL
);
576 qlogicpti_enable_irqs(qpti
);
577 sbus_writew(0, qpti
->qregs
+ SBUS_SEMAPHORE
);
578 sbus_writew(HCCTRL_REL
, qpti
->qregs
+ HCCTRL
);
580 /* Ask ISP to verify the checksum of the new code. */
581 param
[0] = MBOX_VERIFY_CHECKSUM
;
582 param
[1] = risc_code_addr
;
583 if (qlogicpti_mbox_command(qpti
, param
, 1) ||
584 (param
[0] != MBOX_COMMAND_COMPLETE
)) {
585 printk(KERN_EMERG
"qlogicpti%d: New firmware csum failure!\n",
591 /* Start using newly downloaded firmware. */
592 param
[0] = MBOX_EXEC_FIRMWARE
;
593 param
[1] = risc_code_addr
;
594 qlogicpti_mbox_command(qpti
, param
, 1);
596 param
[0] = MBOX_ABOUT_FIRMWARE
;
597 if (qlogicpti_mbox_command(qpti
, param
, 1) ||
598 (param
[0] != MBOX_COMMAND_COMPLETE
)) {
599 printk(KERN_EMERG
"qlogicpti%d: AboutFirmware cmd fails.\n",
605 /* Snag the major and minor revisions from the result. */
606 qpti
->fware_majrev
= param
[1];
607 qpti
->fware_minrev
= param
[2];
608 qpti
->fware_micrev
= param
[3];
610 /* Set the clock rate */
611 param
[0] = MBOX_SET_CLOCK_RATE
;
612 param
[1] = qpti
->clock
;
613 if (qlogicpti_mbox_command(qpti
, param
, 1) ||
614 (param
[0] != MBOX_COMMAND_COMPLETE
)) {
615 printk(KERN_EMERG
"qlogicpti%d: could not set clock rate.\n",
621 if (qpti
->is_pti
!= 0) {
622 /* Load scsi initiator ID and interrupt level into sbus static ram. */
623 param
[0] = MBOX_WRITE_RAM_WORD
;
625 param
[2] = (unsigned short) qpti
->scsi_id
;
626 qlogicpti_mbox_command(qpti
, param
, 1);
628 param
[0] = MBOX_WRITE_RAM_WORD
;
630 param
[2] = (unsigned short) 3;
631 qlogicpti_mbox_command(qpti
, param
, 1);
635 spin_unlock_irqrestore(host
->host_lock
, flags
);
637 release_firmware(fw
);
641 static int qlogicpti_verify_tmon(struct qlogicpti
*qpti
)
643 int curstat
= sbus_readb(qpti
->sreg
);
646 if (!(curstat
& SREG_FUSE
) && (qpti
->swsreg
& SREG_FUSE
))
647 printk("qlogicpti%d: Fuse returned to normal state.\n", qpti
->qpti_id
);
648 if (!(curstat
& SREG_TPOWER
) && (qpti
->swsreg
& SREG_TPOWER
))
649 printk("qlogicpti%d: termpwr back to normal state.\n", qpti
->qpti_id
);
650 if (curstat
!= qpti
->swsreg
) {
652 if (curstat
& SREG_FUSE
) {
654 printk("qlogicpti%d: Fuse is open!\n", qpti
->qpti_id
);
656 if (curstat
& SREG_TPOWER
) {
658 printk("qlogicpti%d: termpwr failure\n", qpti
->qpti_id
);
660 if (qpti
->differential
&&
661 (curstat
& SREG_DSENSE
) != SREG_DSENSE
) {
663 printk("qlogicpti%d: You have a single ended device on a "
664 "differential bus! Please fix!\n", qpti
->qpti_id
);
666 qpti
->swsreg
= curstat
;
672 static irqreturn_t
qpti_intr(int irq
, void *dev_id
);
674 static void __devinit
qpti_chain_add(struct qlogicpti
*qpti
)
676 spin_lock_irq(&qptichain_lock
);
677 if (qptichain
!= NULL
) {
678 struct qlogicpti
*qlink
= qptichain
;
687 spin_unlock_irq(&qptichain_lock
);
690 static void __devexit
qpti_chain_del(struct qlogicpti
*qpti
)
692 spin_lock_irq(&qptichain_lock
);
693 if (qptichain
== qpti
) {
694 qptichain
= qpti
->next
;
696 struct qlogicpti
*qlink
= qptichain
;
697 while(qlink
->next
!= qpti
)
699 qlink
->next
= qpti
->next
;
702 spin_unlock_irq(&qptichain_lock
);
705 static int __devinit
qpti_map_regs(struct qlogicpti
*qpti
)
707 struct of_device
*op
= qpti
->op
;
709 qpti
->qregs
= of_ioremap(&op
->resource
[0], 0,
710 resource_size(&op
->resource
[0]),
713 printk("PTI: Qlogic/ISP registers are unmappable\n");
717 qpti
->sreg
= of_ioremap(&op
->resource
[0], (16 * 4096),
718 sizeof(unsigned char),
719 "PTI Qlogic/ISP statreg");
721 printk("PTI: Qlogic/ISP status register is unmappable\n");
728 static int __devinit
qpti_register_irq(struct qlogicpti
*qpti
)
730 struct of_device
*op
= qpti
->op
;
732 qpti
->qhost
->irq
= qpti
->irq
= op
->irqs
[0];
734 /* We used to try various overly-clever things to
735 * reduce the interrupt processing overhead on
736 * sun4c/sun4m when multiple PTI's shared the
737 * same IRQ. It was too complex and messy to
740 if (request_irq(qpti
->irq
, qpti_intr
,
741 IRQF_SHARED
, "Qlogic/PTI", qpti
))
744 printk("qlogicpti%d: IRQ %d ", qpti
->qpti_id
, qpti
->irq
);
749 printk("qlogicpti%d: Cannot acquire irq line\n", qpti
->qpti_id
);
753 static void __devinit
qpti_get_scsi_id(struct qlogicpti
*qpti
)
755 struct of_device
*op
= qpti
->op
;
756 struct device_node
*dp
;
760 qpti
->scsi_id
= of_getintprop_default(dp
, "initiator-id", -1);
761 if (qpti
->scsi_id
== -1)
762 qpti
->scsi_id
= of_getintprop_default(dp
, "scsi-initiator-id",
764 if (qpti
->scsi_id
== -1)
766 of_getintprop_default(dp
->parent
,
767 "scsi-initiator-id", 7);
768 qpti
->qhost
->this_id
= qpti
->scsi_id
;
769 qpti
->qhost
->max_sectors
= 64;
771 printk("SCSI ID %d ", qpti
->scsi_id
);
774 static void qpti_get_bursts(struct qlogicpti
*qpti
)
776 struct of_device
*op
= qpti
->op
;
779 bursts
= of_getintprop_default(op
->node
, "burst-sizes", 0xff);
780 bmask
= of_getintprop_default(op
->node
->parent
, "burst-sizes", 0xff);
783 if (bursts
== 0xff ||
784 (bursts
& DMA_BURST16
) == 0 ||
785 (bursts
& DMA_BURST32
) == 0)
786 bursts
= (DMA_BURST32
- 1);
788 qpti
->bursts
= bursts
;
791 static void qpti_get_clock(struct qlogicpti
*qpti
)
795 /* Check for what the clock input to this card is.
798 cfreq
= prom_getintdefault(qpti
->prom_node
,"clock-frequency",40000000);
799 qpti
->clock
= (cfreq
+ 500000)/1000000;
800 if (qpti
->clock
== 0) /* bullshit */
804 /* The request and response queues must each be aligned
805 * on a page boundary.
807 static int __devinit
qpti_map_queues(struct qlogicpti
*qpti
)
809 struct of_device
*op
= qpti
->op
;
811 #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
812 qpti
->res_cpu
= dma_alloc_coherent(&op
->dev
,
813 QSIZE(RES_QUEUE_LEN
),
814 &qpti
->res_dvma
, GFP_ATOMIC
);
815 if (qpti
->res_cpu
== NULL
||
816 qpti
->res_dvma
== 0) {
817 printk("QPTI: Cannot map response queue.\n");
821 qpti
->req_cpu
= dma_alloc_coherent(&op
->dev
,
822 QSIZE(QLOGICPTI_REQ_QUEUE_LEN
),
823 &qpti
->req_dvma
, GFP_ATOMIC
);
824 if (qpti
->req_cpu
== NULL
||
825 qpti
->req_dvma
== 0) {
826 dma_free_coherent(&op
->dev
, QSIZE(RES_QUEUE_LEN
),
827 qpti
->res_cpu
, qpti
->res_dvma
);
828 printk("QPTI: Cannot map request queue.\n");
831 memset(qpti
->res_cpu
, 0, QSIZE(RES_QUEUE_LEN
));
832 memset(qpti
->req_cpu
, 0, QSIZE(QLOGICPTI_REQ_QUEUE_LEN
));
836 const char *qlogicpti_info(struct Scsi_Host
*host
)
839 struct qlogicpti
*qpti
= (struct qlogicpti
*) host
->hostdata
;
841 sprintf(buf
, "PTI Qlogic,ISP SBUS SCSI irq %d regs at %p",
842 qpti
->qhost
->irq
, qpti
->qregs
);
846 /* I am a certified frobtronicist. */
847 static inline void marker_frob(struct Command_Entry
*cmd
)
849 struct Marker_Entry
*marker
= (struct Marker_Entry
*) cmd
;
851 memset(marker
, 0, sizeof(struct Marker_Entry
));
852 marker
->hdr
.entry_cnt
= 1;
853 marker
->hdr
.entry_type
= ENTRY_MARKER
;
854 marker
->modifier
= SYNC_ALL
;
858 static inline void cmd_frob(struct Command_Entry
*cmd
, struct scsi_cmnd
*Cmnd
,
859 struct qlogicpti
*qpti
)
861 memset(cmd
, 0, sizeof(struct Command_Entry
));
862 cmd
->hdr
.entry_cnt
= 1;
863 cmd
->hdr
.entry_type
= ENTRY_COMMAND
;
864 cmd
->target_id
= Cmnd
->device
->id
;
865 cmd
->target_lun
= Cmnd
->device
->lun
;
866 cmd
->cdb_length
= Cmnd
->cmd_len
;
867 cmd
->control_flags
= 0;
868 if (Cmnd
->device
->tagged_supported
) {
869 if (qpti
->cmd_count
[Cmnd
->device
->id
] == 0)
870 qpti
->tag_ages
[Cmnd
->device
->id
] = jiffies
;
871 if (time_after(jiffies
, qpti
->tag_ages
[Cmnd
->device
->id
] + (5*HZ
))) {
872 cmd
->control_flags
= CFLAG_ORDERED_TAG
;
873 qpti
->tag_ages
[Cmnd
->device
->id
] = jiffies
;
875 cmd
->control_flags
= CFLAG_SIMPLE_TAG
;
877 if ((Cmnd
->cmnd
[0] == WRITE_6
) ||
878 (Cmnd
->cmnd
[0] == WRITE_10
) ||
879 (Cmnd
->cmnd
[0] == WRITE_12
))
880 cmd
->control_flags
|= CFLAG_WRITE
;
882 cmd
->control_flags
|= CFLAG_READ
;
884 memcpy(cmd
->cdb
, Cmnd
->cmnd
, Cmnd
->cmd_len
);
887 /* Do it to it baby. */
888 static inline int load_cmd(struct scsi_cmnd
*Cmnd
, struct Command_Entry
*cmd
,
889 struct qlogicpti
*qpti
, u_int in_ptr
, u_int out_ptr
)
892 struct scatterlist
*sg
, *s
;
895 if (scsi_bufflen(Cmnd
)) {
898 sg
= scsi_sglist(Cmnd
);
899 sg_count
= dma_map_sg(&qpti
->op
->dev
, sg
,
901 Cmnd
->sc_data_direction
);
904 cmd
->segment_cnt
= sg_count
;
906 /* Fill in first four sg entries: */
910 for_each_sg(sg
, s
, n
, i
) {
911 ds
[i
].d_base
= sg_dma_address(s
);
912 ds
[i
].d_count
= sg_dma_len(s
);
916 while (sg_count
> 0) {
917 struct Continuation_Entry
*cont
;
919 ++cmd
->hdr
.entry_cnt
;
920 cont
= (struct Continuation_Entry
*) &qpti
->req_cpu
[in_ptr
];
921 in_ptr
= NEXT_REQ_PTR(in_ptr
);
922 if (in_ptr
== out_ptr
)
925 cont
->hdr
.entry_type
= ENTRY_CONTINUATION
;
926 cont
->hdr
.entry_cnt
= 0;
927 cont
->hdr
.sys_def_1
= 0;
934 for_each_sg(sg
, s
, n
, i
) {
935 ds
[i
].d_base
= sg_dma_address(s
);
936 ds
[i
].d_count
= sg_dma_len(s
);
942 cmd
->dataseg
[0].d_base
= 0;
943 cmd
->dataseg
[0].d_count
= 0;
944 cmd
->segment_cnt
= 1; /* Shouldn't this be 0? */
947 /* Committed, record Scsi_Cmd so we can find it later. */
948 cmd
->handle
= in_ptr
;
949 qpti
->cmd_slots
[in_ptr
] = Cmnd
;
951 qpti
->cmd_count
[Cmnd
->device
->id
]++;
952 sbus_writew(in_ptr
, qpti
->qregs
+ MBOX4
);
953 qpti
->req_in_ptr
= in_ptr
;
958 static inline void update_can_queue(struct Scsi_Host
*host
, u_int in_ptr
, u_int out_ptr
)
960 /* Temporary workaround until bug is found and fixed (one bug has been found
961 already, but fixing it makes things even worse) -jj */
962 int num_free
= QLOGICPTI_REQ_QUEUE_LEN
- REQ_QUEUE_DEPTH(in_ptr
, out_ptr
) - 64;
963 host
->can_queue
= host
->host_busy
+ num_free
;
964 host
->sg_tablesize
= QLOGICPTI_MAX_SG(num_free
);
967 static int qlogicpti_slave_configure(struct scsi_device
*sdev
)
969 struct qlogicpti
*qpti
= shost_priv(sdev
->host
);
973 /* tags handled in midlayer */
974 /* enable sync mode? */
976 qpti
->dev_param
[tgt
].device_flags
|= 0x10;
978 qpti
->dev_param
[tgt
].synchronous_offset
= 0;
979 qpti
->dev_param
[tgt
].synchronous_period
= 0;
981 /* are we wide capable? */
983 qpti
->dev_param
[tgt
].device_flags
|= 0x20;
985 param
[0] = MBOX_SET_TARGET_PARAMS
;
986 param
[1] = (tgt
<< 8);
987 param
[2] = (qpti
->dev_param
[tgt
].device_flags
<< 8);
988 if (qpti
->dev_param
[tgt
].device_flags
& 0x10) {
989 param
[3] = (qpti
->dev_param
[tgt
].synchronous_offset
<< 8) |
990 qpti
->dev_param
[tgt
].synchronous_period
;
994 qlogicpti_mbox_command(qpti
, param
, 0);
999 * The middle SCSI layer ensures that queuecommand never gets invoked
1000 * concurrently with itself or the interrupt handler (though the
1001 * interrupt handler may call this routine as part of
1002 * request-completion handling).
1004 * "This code must fly." -davem
1006 static int qlogicpti_queuecommand(struct scsi_cmnd
*Cmnd
, void (*done
)(struct scsi_cmnd
*))
1008 struct Scsi_Host
*host
= Cmnd
->device
->host
;
1009 struct qlogicpti
*qpti
= (struct qlogicpti
*) host
->hostdata
;
1010 struct Command_Entry
*cmd
;
1014 Cmnd
->scsi_done
= done
;
1016 in_ptr
= qpti
->req_in_ptr
;
1017 cmd
= (struct Command_Entry
*) &qpti
->req_cpu
[in_ptr
];
1018 out_ptr
= sbus_readw(qpti
->qregs
+ MBOX4
);
1019 in_ptr
= NEXT_REQ_PTR(in_ptr
);
1020 if (in_ptr
== out_ptr
)
1023 if (qpti
->send_marker
) {
1025 qpti
->send_marker
= 0;
1026 if (NEXT_REQ_PTR(in_ptr
) == out_ptr
) {
1027 sbus_writew(in_ptr
, qpti
->qregs
+ MBOX4
);
1028 qpti
->req_in_ptr
= in_ptr
;
1031 cmd
= (struct Command_Entry
*) &qpti
->req_cpu
[in_ptr
];
1032 in_ptr
= NEXT_REQ_PTR(in_ptr
);
1034 cmd_frob(cmd
, Cmnd
, qpti
);
1035 if ((in_ptr
= load_cmd(Cmnd
, cmd
, qpti
, in_ptr
, out_ptr
)) == -1)
1038 update_can_queue(host
, in_ptr
, out_ptr
);
1043 printk(KERN_EMERG
"qlogicpti%d: request queue overflow\n",
1046 /* Unfortunately, unless you use the new EH code, which
1047 * we don't, the midlayer will ignore the return value,
1048 * which is insane. We pick up the pieces like this.
1050 Cmnd
->result
= DID_BUS_BUSY
;
1055 static int qlogicpti_return_status(struct Status_Entry
*sts
, int id
)
1057 int host_status
= DID_ERROR
;
1059 switch (sts
->completion_status
) {
1061 host_status
= DID_OK
;
1064 if (!(sts
->state_flags
& SF_GOT_BUS
))
1065 host_status
= DID_NO_CONNECT
;
1066 else if (!(sts
->state_flags
& SF_GOT_TARGET
))
1067 host_status
= DID_BAD_TARGET
;
1068 else if (!(sts
->state_flags
& SF_SENT_CDB
))
1069 host_status
= DID_ERROR
;
1070 else if (!(sts
->state_flags
& SF_TRANSFERRED_DATA
))
1071 host_status
= DID_ERROR
;
1072 else if (!(sts
->state_flags
& SF_GOT_STATUS
))
1073 host_status
= DID_ERROR
;
1074 else if (!(sts
->state_flags
& SF_GOT_SENSE
))
1075 host_status
= DID_ERROR
;
1078 case CS_TRANSPORT_ERROR
:
1079 host_status
= DID_ERROR
;
1081 case CS_RESET_OCCURRED
:
1083 host_status
= DID_RESET
;
1086 host_status
= DID_ABORT
;
1089 host_status
= DID_TIME_OUT
;
1091 case CS_DATA_OVERRUN
:
1092 case CS_COMMAND_OVERRUN
:
1093 case CS_STATUS_OVERRUN
:
1094 case CS_BAD_MESSAGE
:
1095 case CS_NO_MESSAGE_OUT
:
1096 case CS_EXT_ID_FAILED
:
1097 case CS_IDE_MSG_FAILED
:
1098 case CS_ABORT_MSG_FAILED
:
1099 case CS_NOP_MSG_FAILED
:
1100 case CS_PARITY_ERROR_MSG_FAILED
:
1101 case CS_DEVICE_RESET_MSG_FAILED
:
1102 case CS_ID_MSG_FAILED
:
1103 case CS_UNEXP_BUS_FREE
:
1104 host_status
= DID_ERROR
;
1106 case CS_DATA_UNDERRUN
:
1107 host_status
= DID_OK
;
1110 printk(KERN_EMERG
"qlogicpti%d: unknown completion status 0x%04x\n",
1111 id
, sts
->completion_status
);
1112 host_status
= DID_ERROR
;
1116 return (sts
->scsi_status
& STATUS_MASK
) | (host_status
<< 16);
1119 static struct scsi_cmnd
*qlogicpti_intr_handler(struct qlogicpti
*qpti
)
1121 struct scsi_cmnd
*Cmnd
, *done_queue
= NULL
;
1122 struct Status_Entry
*sts
;
1123 u_int in_ptr
, out_ptr
;
1125 if (!(sbus_readw(qpti
->qregs
+ SBUS_STAT
) & SBUS_STAT_RINT
))
1128 in_ptr
= sbus_readw(qpti
->qregs
+ MBOX5
);
1129 sbus_writew(HCCTRL_CRIRQ
, qpti
->qregs
+ HCCTRL
);
1130 if (sbus_readw(qpti
->qregs
+ SBUS_SEMAPHORE
) & SBUS_SEMAPHORE_LCK
) {
1131 switch (sbus_readw(qpti
->qregs
+ MBOX0
)) {
1132 case ASYNC_SCSI_BUS_RESET
:
1133 case EXECUTION_TIMEOUT_RESET
:
1134 qpti
->send_marker
= 1;
1136 case INVALID_COMMAND
:
1137 case HOST_INTERFACE_ERROR
:
1139 case COMMAND_PARAM_ERROR
:
1142 sbus_writew(0, qpti
->qregs
+ SBUS_SEMAPHORE
);
1145 /* This looks like a network driver! */
1146 out_ptr
= qpti
->res_out_ptr
;
1147 while (out_ptr
!= in_ptr
) {
1150 sts
= (struct Status_Entry
*) &qpti
->res_cpu
[out_ptr
];
1151 out_ptr
= NEXT_RES_PTR(out_ptr
);
1153 /* We store an index in the handle, not the pointer in
1154 * some form. This avoids problems due to the fact
1155 * that the handle provided is only 32-bits. -DaveM
1157 cmd_slot
= sts
->handle
;
1158 Cmnd
= qpti
->cmd_slots
[cmd_slot
];
1159 qpti
->cmd_slots
[cmd_slot
] = NULL
;
1161 if (sts
->completion_status
== CS_RESET_OCCURRED
||
1162 sts
->completion_status
== CS_ABORTED
||
1163 (sts
->status_flags
& STF_BUS_RESET
))
1164 qpti
->send_marker
= 1;
1166 if (sts
->state_flags
& SF_GOT_SENSE
)
1167 memcpy(Cmnd
->sense_buffer
, sts
->req_sense_data
,
1168 SCSI_SENSE_BUFFERSIZE
);
1170 if (sts
->hdr
.entry_type
== ENTRY_STATUS
)
1172 qlogicpti_return_status(sts
, qpti
->qpti_id
);
1174 Cmnd
->result
= DID_ERROR
<< 16;
1176 if (scsi_bufflen(Cmnd
))
1177 dma_unmap_sg(&qpti
->op
->dev
,
1178 scsi_sglist(Cmnd
), scsi_sg_count(Cmnd
),
1179 Cmnd
->sc_data_direction
);
1181 qpti
->cmd_count
[Cmnd
->device
->id
]--;
1182 sbus_writew(out_ptr
, qpti
->qregs
+ MBOX5
);
1183 Cmnd
->host_scribble
= (unsigned char *) done_queue
;
1186 qpti
->res_out_ptr
= out_ptr
;
1191 static irqreturn_t
qpti_intr(int irq
, void *dev_id
)
1193 struct qlogicpti
*qpti
= dev_id
;
1194 unsigned long flags
;
1195 struct scsi_cmnd
*dq
;
1197 spin_lock_irqsave(qpti
->qhost
->host_lock
, flags
);
1198 dq
= qlogicpti_intr_handler(qpti
);
1202 struct scsi_cmnd
*next
;
1204 next
= (struct scsi_cmnd
*) dq
->host_scribble
;
1207 } while (dq
!= NULL
);
1209 spin_unlock_irqrestore(qpti
->qhost
->host_lock
, flags
);
1214 static int qlogicpti_abort(struct scsi_cmnd
*Cmnd
)
1217 struct Scsi_Host
*host
= Cmnd
->device
->host
;
1218 struct qlogicpti
*qpti
= (struct qlogicpti
*) host
->hostdata
;
1219 int return_status
= SUCCESS
;
1223 printk(KERN_WARNING
"qlogicpti%d: Aborting cmd for tgt[%d] lun[%d]\n",
1224 qpti
->qpti_id
, (int)Cmnd
->device
->id
, (int)Cmnd
->device
->lun
);
1226 qlogicpti_disable_irqs(qpti
);
1228 /* Find the 32-bit cookie we gave to the firmware for
1231 for (i
= 0; i
< QLOGICPTI_REQ_QUEUE_LEN
+ 1; i
++)
1232 if (qpti
->cmd_slots
[i
] == Cmnd
)
1236 param
[0] = MBOX_ABORT
;
1237 param
[1] = (((u_short
) Cmnd
->device
->id
) << 8) | Cmnd
->device
->lun
;
1238 param
[2] = cmd_cookie
>> 16;
1239 param
[3] = cmd_cookie
& 0xffff;
1240 if (qlogicpti_mbox_command(qpti
, param
, 0) ||
1241 (param
[0] != MBOX_COMMAND_COMPLETE
)) {
1242 printk(KERN_EMERG
"qlogicpti%d: scsi abort failure: %x\n",
1243 qpti
->qpti_id
, param
[0]);
1244 return_status
= FAILED
;
1247 qlogicpti_enable_irqs(qpti
);
1249 return return_status
;
1252 static int qlogicpti_reset(struct scsi_cmnd
*Cmnd
)
1255 struct Scsi_Host
*host
= Cmnd
->device
->host
;
1256 struct qlogicpti
*qpti
= (struct qlogicpti
*) host
->hostdata
;
1257 int return_status
= SUCCESS
;
1259 printk(KERN_WARNING
"qlogicpti%d: Resetting SCSI bus!\n",
1262 qlogicpti_disable_irqs(qpti
);
1264 param
[0] = MBOX_BUS_RESET
;
1265 param
[1] = qpti
->host_param
.bus_reset_delay
;
1266 if (qlogicpti_mbox_command(qpti
, param
, 0) ||
1267 (param
[0] != MBOX_COMMAND_COMPLETE
)) {
1268 printk(KERN_EMERG
"qlogicisp%d: scsi bus reset failure: %x\n",
1269 qpti
->qpti_id
, param
[0]);
1270 return_status
= FAILED
;
1273 qlogicpti_enable_irqs(qpti
);
1275 return return_status
;
1278 static struct scsi_host_template qpti_template
= {
1279 .module
= THIS_MODULE
,
1280 .name
= "qlogicpti",
1281 .info
= qlogicpti_info
,
1282 .queuecommand
= qlogicpti_queuecommand
,
1283 .slave_configure
= qlogicpti_slave_configure
,
1284 .eh_abort_handler
= qlogicpti_abort
,
1285 .eh_bus_reset_handler
= qlogicpti_reset
,
1286 .can_queue
= QLOGICPTI_REQ_QUEUE_LEN
,
1288 .sg_tablesize
= QLOGICPTI_MAX_SG(QLOGICPTI_REQ_QUEUE_LEN
),
1290 .use_clustering
= ENABLE_CLUSTERING
,
1293 static int __devinit
qpti_sbus_probe(struct of_device
*op
, const struct of_device_id
*match
)
1295 struct scsi_host_template
*tpnt
= match
->data
;
1296 struct device_node
*dp
= op
->node
;
1297 struct Scsi_Host
*host
;
1298 struct qlogicpti
*qpti
;
1302 /* Sometimes Antares cards come up not completely
1303 * setup, and we get a report of a zero IRQ.
1305 if (op
->irqs
[0] == 0)
1308 host
= scsi_host_alloc(tpnt
, sizeof(struct qlogicpti
));
1312 qpti
= shost_priv(host
);
1314 host
->max_id
= MAX_TARGETS
;
1317 qpti
->qpti_id
= nqptis
;
1318 strcpy(qpti
->prom_name
, op
->node
->name
);
1319 qpti
->is_pti
= strcmp(qpti
->prom_name
, "QLGC,isp");
1321 if (qpti_map_regs(qpti
) < 0)
1324 if (qpti_register_irq(qpti
) < 0)
1325 goto fail_unmap_regs
;
1327 qpti_get_scsi_id(qpti
);
1328 qpti_get_bursts(qpti
);
1329 qpti_get_clock(qpti
);
1331 /* Clear out scsi_cmnd array. */
1332 memset(qpti
->cmd_slots
, 0, sizeof(qpti
->cmd_slots
));
1334 if (qpti_map_queues(qpti
) < 0)
1337 /* Load the firmware. */
1338 if (qlogicpti_load_firmware(qpti
))
1339 goto fail_unmap_queues
;
1341 /* Check the PTI status reg. */
1342 if (qlogicpti_verify_tmon(qpti
))
1343 goto fail_unmap_queues
;
1346 /* Reset the ISP and init res/req queues. */
1347 if (qlogicpti_reset_hardware(host
))
1348 goto fail_unmap_queues
;
1350 printk("(Firmware v%d.%d.%d)", qpti
->fware_majrev
,
1351 qpti
->fware_minrev
, qpti
->fware_micrev
);
1353 fcode
= of_get_property(dp
, "isp-fcode", NULL
);
1354 if (fcode
&& fcode
[0])
1355 printk("(FCode %s)", fcode
);
1356 if (of_find_property(dp
, "differential", NULL
) != NULL
)
1357 qpti
->differential
= 1;
1359 printk("\nqlogicpti%d: [%s Wide, using %s interface]\n",
1361 (qpti
->ultra
? "Ultra" : "Fast"),
1362 (qpti
->differential
? "differential" : "single ended"));
1364 if (scsi_add_host(host
, &op
->dev
)) {
1365 printk("qlogicpti%d: Failed scsi_add_host\n", qpti
->qpti_id
);
1366 goto fail_unmap_queues
;
1369 dev_set_drvdata(&op
->dev
, qpti
);
1371 qpti_chain_add(qpti
);
1373 scsi_scan_host(host
);
1379 #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
1380 dma_free_coherent(&op
->dev
,
1381 QSIZE(RES_QUEUE_LEN
),
1382 qpti
->res_cpu
, qpti
->res_dvma
);
1383 dma_free_coherent(&op
->dev
,
1384 QSIZE(QLOGICPTI_REQ_QUEUE_LEN
),
1385 qpti
->req_cpu
, qpti
->req_dvma
);
1389 of_iounmap(&op
->resource
[0], qpti
->qregs
,
1390 resource_size(&op
->resource
[0]));
1392 of_iounmap(&op
->resource
[0], qpti
->sreg
,
1393 sizeof(unsigned char));
1396 free_irq(qpti
->irq
, qpti
);
1399 scsi_host_put(host
);
1404 static int __devexit
qpti_sbus_remove(struct of_device
*op
)
1406 struct qlogicpti
*qpti
= dev_get_drvdata(&op
->dev
);
1408 qpti_chain_del(qpti
);
1410 scsi_remove_host(qpti
->qhost
);
1412 /* Shut up the card. */
1413 sbus_writew(0, qpti
->qregs
+ SBUS_CTRL
);
1415 /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */
1416 free_irq(qpti
->irq
, qpti
);
1418 #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
1419 dma_free_coherent(&op
->dev
,
1420 QSIZE(RES_QUEUE_LEN
),
1421 qpti
->res_cpu
, qpti
->res_dvma
);
1422 dma_free_coherent(&op
->dev
,
1423 QSIZE(QLOGICPTI_REQ_QUEUE_LEN
),
1424 qpti
->req_cpu
, qpti
->req_dvma
);
1427 of_iounmap(&op
->resource
[0], qpti
->qregs
,
1428 resource_size(&op
->resource
[0]));
1430 of_iounmap(&op
->resource
[0], qpti
->sreg
, sizeof(unsigned char));
1432 scsi_host_put(qpti
->qhost
);
1437 static const struct of_device_id qpti_match
[] = {
1440 .data
= &qpti_template
,
1443 .name
= "PTI,ptisp",
1444 .data
= &qpti_template
,
1448 .data
= &qpti_template
,
1452 .data
= &qpti_template
,
1456 MODULE_DEVICE_TABLE(of
, qpti_match
);
1458 static struct of_platform_driver qpti_sbus_driver
= {
1460 .match_table
= qpti_match
,
1461 .probe
= qpti_sbus_probe
,
1462 .remove
= __devexit_p(qpti_sbus_remove
),
1465 static int __init
qpti_init(void)
1467 return of_register_driver(&qpti_sbus_driver
, &of_bus_type
);
1470 static void __exit
qpti_exit(void)
1472 of_unregister_driver(&qpti_sbus_driver
);
1475 MODULE_DESCRIPTION("QlogicISP SBUS driver");
1476 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
1477 MODULE_LICENSE("GPL");
1478 MODULE_VERSION("2.1");
1479 MODULE_FIRMWARE("qlogic/isp1000.bin");
1481 module_init(qpti_init
);
1482 module_exit(qpti_exit
);