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Diffstat (limited to 'drivers/scsi/aic94xx/aic94xx_sds.c')
-rw-r--r--drivers/scsi/aic94xx/aic94xx_sds.c1136
1 files changed, 1136 insertions, 0 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_sds.c b/drivers/scsi/aic94xx/aic94xx_sds.c
new file mode 100644
index 000000000000..eec1e0db0e0f
--- /dev/null
+++ b/drivers/scsi/aic94xx/aic94xx_sds.c
@@ -0,0 +1,1136 @@
1/*
2 * Aic94xx SAS/SATA driver access to shared data structures and memory
3 * maps.
4 *
5 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
7 *
8 * This file is licensed under GPLv2.
9 *
10 * This file is part of the aic94xx driver.
11 *
12 * The aic94xx driver is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; version 2 of the
15 * License.
16 *
17 * The aic94xx driver is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with the aic94xx driver; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 *
26 */
27
28#include <linux/pci.h>
29#include <linux/delay.h>
30
31#include "aic94xx.h"
32#include "aic94xx_reg.h"
33
34/* ---------- OCM stuff ---------- */
35
36struct asd_ocm_dir_ent {
37 u8 type;
38 u8 offs[3];
39 u8 _r1;
40 u8 size[3];
41} __attribute__ ((packed));
42
43struct asd_ocm_dir {
44 char sig[2];
45 u8 _r1[2];
46 u8 major; /* 0 */
47 u8 minor; /* 0 */
48 u8 _r2;
49 u8 num_de;
50 struct asd_ocm_dir_ent entry[15];
51} __attribute__ ((packed));
52
53#define OCM_DE_OCM_DIR 0x00
54#define OCM_DE_WIN_DRVR 0x01
55#define OCM_DE_BIOS_CHIM 0x02
56#define OCM_DE_RAID_ENGN 0x03
57#define OCM_DE_BIOS_INTL 0x04
58#define OCM_DE_BIOS_CHIM_OSM 0x05
59#define OCM_DE_BIOS_CHIM_DYNAMIC 0x06
60#define OCM_DE_ADDC2C_RES0 0x07
61#define OCM_DE_ADDC2C_RES1 0x08
62#define OCM_DE_ADDC2C_RES2 0x09
63#define OCM_DE_ADDC2C_RES3 0x0A
64
65#define OCM_INIT_DIR_ENTRIES 5
66/***************************************************************************
67* OCM dircetory default
68***************************************************************************/
69static struct asd_ocm_dir OCMDirInit =
70{
71 .sig = {0x4D, 0x4F}, /* signature */
72 .num_de = OCM_INIT_DIR_ENTRIES, /* no. of directory entries */
73};
74
75/***************************************************************************
76* OCM dircetory Entries default
77***************************************************************************/
78static struct asd_ocm_dir_ent OCMDirEntriesInit[OCM_INIT_DIR_ENTRIES] =
79{
80 {
81 .type = (OCM_DE_ADDC2C_RES0), /* Entry type */
82 .offs = {128}, /* Offset */
83 .size = {0, 4}, /* size */
84 },
85 {
86 .type = (OCM_DE_ADDC2C_RES1), /* Entry type */
87 .offs = {128, 4}, /* Offset */
88 .size = {0, 4}, /* size */
89 },
90 {
91 .type = (OCM_DE_ADDC2C_RES2), /* Entry type */
92 .offs = {128, 8}, /* Offset */
93 .size = {0, 4}, /* size */
94 },
95 {
96 .type = (OCM_DE_ADDC2C_RES3), /* Entry type */
97 .offs = {128, 12}, /* Offset */
98 .size = {0, 4}, /* size */
99 },
100 {
101 .type = (OCM_DE_WIN_DRVR), /* Entry type */
102 .offs = {128, 16}, /* Offset */
103 .size = {128, 235, 1}, /* size */
104 },
105};
106
107struct asd_bios_chim_struct {
108 char sig[4];
109 u8 major; /* 1 */
110 u8 minor; /* 0 */
111 u8 bios_major;
112 u8 bios_minor;
113 __le32 bios_build;
114 u8 flags;
115 u8 pci_slot;
116 __le16 ue_num;
117 __le16 ue_size;
118 u8 _r[14];
119 /* The unit element array is right here.
120 */
121} __attribute__ ((packed));
122
123/**
124 * asd_read_ocm_seg - read an on chip memory (OCM) segment
125 * @asd_ha: pointer to the host adapter structure
126 * @buffer: where to write the read data
127 * @offs: offset into OCM where to read from
128 * @size: how many bytes to read
129 *
130 * Return the number of bytes not read. Return 0 on success.
131 */
132static int asd_read_ocm_seg(struct asd_ha_struct *asd_ha, void *buffer,
133 u32 offs, int size)
134{
135 u8 *p = buffer;
136 if (unlikely(asd_ha->iospace))
137 asd_read_reg_string(asd_ha, buffer, offs+OCM_BASE_ADDR, size);
138 else {
139 for ( ; size > 0; size--, offs++, p++)
140 *p = asd_read_ocm_byte(asd_ha, offs);
141 }
142 return size;
143}
144
145static int asd_read_ocm_dir(struct asd_ha_struct *asd_ha,
146 struct asd_ocm_dir *dir, u32 offs)
147{
148 int err = asd_read_ocm_seg(asd_ha, dir, offs, sizeof(*dir));
149 if (err) {
150 ASD_DPRINTK("couldn't read ocm segment\n");
151 return err;
152 }
153
154 if (dir->sig[0] != 'M' || dir->sig[1] != 'O') {
155 ASD_DPRINTK("no valid dir signature(%c%c) at start of OCM\n",
156 dir->sig[0], dir->sig[1]);
157 return -ENOENT;
158 }
159 if (dir->major != 0) {
160 asd_printk("unsupported major version of ocm dir:0x%x\n",
161 dir->major);
162 return -ENOENT;
163 }
164 dir->num_de &= 0xf;
165 return 0;
166}
167
168/**
169 * asd_write_ocm_seg - write an on chip memory (OCM) segment
170 * @asd_ha: pointer to the host adapter structure
171 * @buffer: where to read the write data
172 * @offs: offset into OCM to write to
173 * @size: how many bytes to write
174 *
175 * Return the number of bytes not written. Return 0 on success.
176 */
177static void asd_write_ocm_seg(struct asd_ha_struct *asd_ha, void *buffer,
178 u32 offs, int size)
179{
180 u8 *p = buffer;
181 if (unlikely(asd_ha->iospace))
182 asd_write_reg_string(asd_ha, buffer, offs+OCM_BASE_ADDR, size);
183 else {
184 for ( ; size > 0; size--, offs++, p++)
185 asd_write_ocm_byte(asd_ha, offs, *p);
186 }
187 return;
188}
189
190#define THREE_TO_NUM(X) ((X)[0] | ((X)[1] << 8) | ((X)[2] << 16))
191
192static int asd_find_dir_entry(struct asd_ocm_dir *dir, u8 type,
193 u32 *offs, u32 *size)
194{
195 int i;
196 struct asd_ocm_dir_ent *ent;
197
198 for (i = 0; i < dir->num_de; i++) {
199 if (dir->entry[i].type == type)
200 break;
201 }
202 if (i >= dir->num_de)
203 return -ENOENT;
204 ent = &dir->entry[i];
205 *offs = (u32) THREE_TO_NUM(ent->offs);
206 *size = (u32) THREE_TO_NUM(ent->size);
207 return 0;
208}
209
210#define OCM_BIOS_CHIM_DE 2
211#define BC_BIOS_PRESENT 1
212
213static int asd_get_bios_chim(struct asd_ha_struct *asd_ha,
214 struct asd_ocm_dir *dir)
215{
216 int err;
217 struct asd_bios_chim_struct *bc_struct;
218 u32 offs, size;
219
220 err = asd_find_dir_entry(dir, OCM_BIOS_CHIM_DE, &offs, &size);
221 if (err) {
222 ASD_DPRINTK("couldn't find BIOS_CHIM dir ent\n");
223 goto out;
224 }
225 err = -ENOMEM;
226 bc_struct = kmalloc(sizeof(*bc_struct), GFP_KERNEL);
227 if (!bc_struct) {
228 asd_printk("no memory for bios_chim struct\n");
229 goto out;
230 }
231 err = asd_read_ocm_seg(asd_ha, (void *)bc_struct, offs,
232 sizeof(*bc_struct));
233 if (err) {
234 ASD_DPRINTK("couldn't read ocm segment\n");
235 goto out2;
236 }
237 if (strncmp(bc_struct->sig, "SOIB", 4)
238 && strncmp(bc_struct->sig, "IPSA", 4)) {
239 ASD_DPRINTK("BIOS_CHIM entry has no valid sig(%c%c%c%c)\n",
240 bc_struct->sig[0], bc_struct->sig[1],
241 bc_struct->sig[2], bc_struct->sig[3]);
242 err = -ENOENT;
243 goto out2;
244 }
245 if (bc_struct->major != 1) {
246 asd_printk("BIOS_CHIM unsupported major version:0x%x\n",
247 bc_struct->major);
248 err = -ENOENT;
249 goto out2;
250 }
251 if (bc_struct->flags & BC_BIOS_PRESENT) {
252 asd_ha->hw_prof.bios.present = 1;
253 asd_ha->hw_prof.bios.maj = bc_struct->bios_major;
254 asd_ha->hw_prof.bios.min = bc_struct->bios_minor;
255 asd_ha->hw_prof.bios.bld = le32_to_cpu(bc_struct->bios_build);
256 ASD_DPRINTK("BIOS present (%d,%d), %d\n",
257 asd_ha->hw_prof.bios.maj,
258 asd_ha->hw_prof.bios.min,
259 asd_ha->hw_prof.bios.bld);
260 }
261 asd_ha->hw_prof.ue.num = le16_to_cpu(bc_struct->ue_num);
262 asd_ha->hw_prof.ue.size= le16_to_cpu(bc_struct->ue_size);
263 ASD_DPRINTK("ue num:%d, ue size:%d\n", asd_ha->hw_prof.ue.num,
264 asd_ha->hw_prof.ue.size);
265 size = asd_ha->hw_prof.ue.num * asd_ha->hw_prof.ue.size;
266 if (size > 0) {
267 err = -ENOMEM;
268 asd_ha->hw_prof.ue.area = kmalloc(size, GFP_KERNEL);
269 if (!asd_ha->hw_prof.ue.area)
270 goto out2;
271 err = asd_read_ocm_seg(asd_ha, (void *)asd_ha->hw_prof.ue.area,
272 offs + sizeof(*bc_struct), size);
273 if (err) {
274 kfree(asd_ha->hw_prof.ue.area);
275 asd_ha->hw_prof.ue.area = NULL;
276 asd_ha->hw_prof.ue.num = 0;
277 asd_ha->hw_prof.ue.size = 0;
278 ASD_DPRINTK("couldn't read ue entries(%d)\n", err);
279 }
280 }
281out2:
282 kfree(bc_struct);
283out:
284 return err;
285}
286
287static void
288asd_hwi_initialize_ocm_dir (struct asd_ha_struct *asd_ha)
289{
290 int i;
291
292 /* Zero OCM */
293 for (i = 0; i < OCM_MAX_SIZE; i += 4)
294 asd_write_ocm_dword(asd_ha, i, 0);
295
296 /* Write Dir */
297 asd_write_ocm_seg(asd_ha, &OCMDirInit, 0,
298 sizeof(struct asd_ocm_dir));
299
300 /* Write Dir Entries */
301 for (i = 0; i < OCM_INIT_DIR_ENTRIES; i++)
302 asd_write_ocm_seg(asd_ha, &OCMDirEntriesInit[i],
303 sizeof(struct asd_ocm_dir) +
304 (i * sizeof(struct asd_ocm_dir_ent))
305 , sizeof(struct asd_ocm_dir_ent));
306
307}
308
309static int
310asd_hwi_check_ocm_access (struct asd_ha_struct *asd_ha)
311{
312 struct pci_dev *pcidev = asd_ha->pcidev;
313 u32 reg;
314 int err = 0;
315 u32 v;
316
317 /* check if OCM has been initialized by BIOS */
318 reg = asd_read_reg_dword(asd_ha, EXSICNFGR);
319
320 if (!(reg & OCMINITIALIZED)) {
321 err = pci_read_config_dword(pcidev, PCIC_INTRPT_STAT, &v);
322 if (err) {
323 asd_printk("couldn't access PCIC_INTRPT_STAT of %s\n",
324 pci_name(pcidev));
325 goto out;
326 }
327
328 printk(KERN_INFO "OCM is not initialized by BIOS,"
329 "reinitialize it and ignore it, current IntrptStatus"
330 "is 0x%x\n", v);
331
332 if (v)
333 err = pci_write_config_dword(pcidev,
334 PCIC_INTRPT_STAT, v);
335 if (err) {
336 asd_printk("couldn't write PCIC_INTRPT_STAT of %s\n",
337 pci_name(pcidev));
338 goto out;
339 }
340
341 asd_hwi_initialize_ocm_dir(asd_ha);
342
343 }
344out:
345 return err;
346}
347
348/**
349 * asd_read_ocm - read on chip memory (OCM)
350 * @asd_ha: pointer to the host adapter structure
351 */
352int asd_read_ocm(struct asd_ha_struct *asd_ha)
353{
354 int err;
355 struct asd_ocm_dir *dir;
356
357 if (asd_hwi_check_ocm_access(asd_ha))
358 return -1;
359
360 dir = kmalloc(sizeof(*dir), GFP_KERNEL);
361 if (!dir) {
362 asd_printk("no memory for ocm dir\n");
363 return -ENOMEM;
364 }
365
366 err = asd_read_ocm_dir(asd_ha, dir, 0);
367 if (err)
368 goto out;
369
370 err = asd_get_bios_chim(asd_ha, dir);
371out:
372 kfree(dir);
373 return err;
374}
375
376/* ---------- FLASH stuff ---------- */
377
378#define FLASH_RESET 0xF0
379#define FLASH_MANUF_AMD 1
380
381#define FLASH_SIZE 0x200000
382#define FLASH_DIR_COOKIE "*** ADAPTEC FLASH DIRECTORY *** "
383#define FLASH_NEXT_ENTRY_OFFS 0x2000
384#define FLASH_MAX_DIR_ENTRIES 32
385
386#define FLASH_DE_TYPE_MASK 0x3FFFFFFF
387#define FLASH_DE_MS 0x120
388#define FLASH_DE_CTRL_A_USER 0xE0
389
390struct asd_flash_de {
391 __le32 type;
392 __le32 offs;
393 __le32 pad_size;
394 __le32 image_size;
395 __le32 chksum;
396 u8 _r[12];
397 u8 version[32];
398} __attribute__ ((packed));
399
400struct asd_flash_dir {
401 u8 cookie[32];
402 __le32 rev; /* 2 */
403 __le32 chksum;
404 __le32 chksum_antidote;
405 __le32 bld;
406 u8 bld_id[32]; /* build id data */
407 u8 ver_data[32]; /* date and time of build */
408 __le32 ae_mask;
409 __le32 v_mask;
410 __le32 oc_mask;
411 u8 _r[20];
412 struct asd_flash_de dir_entry[FLASH_MAX_DIR_ENTRIES];
413} __attribute__ ((packed));
414
415struct asd_manuf_sec {
416 char sig[2]; /* 'S', 'M' */
417 u16 offs_next;
418 u8 maj; /* 0 */
419 u8 min; /* 0 */
420 u16 chksum;
421 u16 size;
422 u8 _r[6];
423 u8 sas_addr[SAS_ADDR_SIZE];
424 u8 pcba_sn[ASD_PCBA_SN_SIZE];
425 /* Here start the other segments */
426 u8 linked_list[0];
427} __attribute__ ((packed));
428
429struct asd_manuf_phy_desc {
430 u8 state; /* low 4 bits */
431#define MS_PHY_STATE_ENABLEABLE 0
432#define MS_PHY_STATE_REPORTED 1
433#define MS_PHY_STATE_HIDDEN 2
434 u8 phy_id;
435 u16 _r;
436 u8 phy_control_0; /* mode 5 reg 0x160 */
437 u8 phy_control_1; /* mode 5 reg 0x161 */
438 u8 phy_control_2; /* mode 5 reg 0x162 */
439 u8 phy_control_3; /* mode 5 reg 0x163 */
440} __attribute__ ((packed));
441
442struct asd_manuf_phy_param {
443 char sig[2]; /* 'P', 'M' */
444 u16 next;
445 u8 maj; /* 0 */
446 u8 min; /* 2 */
447 u8 num_phy_desc; /* 8 */
448 u8 phy_desc_size; /* 8 */
449 u8 _r[3];
450 u8 usage_model_id;
451 u32 _r2;
452 struct asd_manuf_phy_desc phy_desc[ASD_MAX_PHYS];
453} __attribute__ ((packed));
454
455#if 0
456static const char *asd_sb_type[] = {
457 "unknown",
458 "SGPIO",
459 [2 ... 0x7F] = "unknown",
460 [0x80] = "ADPT_I2C",
461 [0x81 ... 0xFF] = "VENDOR_UNIQUExx"
462};
463#endif
464
465struct asd_ms_sb_desc {
466 u8 type;
467 u8 node_desc_index;
468 u8 conn_desc_index;
469 u8 _recvd[0];
470} __attribute__ ((packed));
471
472#if 0
473static const char *asd_conn_type[] = {
474 [0 ... 7] = "unknown",
475 "SFF8470",
476 "SFF8482",
477 "SFF8484",
478 [0x80] = "PCIX_DAUGHTER0",
479 [0x81] = "SAS_DAUGHTER0",
480 [0x82 ... 0xFF] = "VENDOR_UNIQUExx"
481};
482
483static const char *asd_conn_location[] = {
484 "unknown",
485 "internal",
486 "external",
487 "board_to_board",
488};
489#endif
490
491struct asd_ms_conn_desc {
492 u8 type;
493 u8 location;
494 u8 num_sideband_desc;
495 u8 size_sideband_desc;
496 u32 _resvd;
497 u8 name[16];
498 struct asd_ms_sb_desc sb_desc[0];
499} __attribute__ ((packed));
500
501struct asd_nd_phy_desc {
502 u8 vp_attch_type;
503 u8 attch_specific[0];
504} __attribute__ ((packed));
505
506#if 0
507static const char *asd_node_type[] = {
508 "IOP",
509 "IO_CONTROLLER",
510 "EXPANDER",
511 "PORT_MULTIPLIER",
512 "PORT_MULTIPLEXER",
513 "MULTI_DROP_I2C_BUS",
514};
515#endif
516
517struct asd_ms_node_desc {
518 u8 type;
519 u8 num_phy_desc;
520 u8 size_phy_desc;
521 u8 _resvd;
522 u8 name[16];
523 struct asd_nd_phy_desc phy_desc[0];
524} __attribute__ ((packed));
525
526struct asd_ms_conn_map {
527 char sig[2]; /* 'M', 'C' */
528 __le16 next;
529 u8 maj; /* 0 */
530 u8 min; /* 0 */
531 __le16 cm_size; /* size of this struct */
532 u8 num_conn;
533 u8 conn_size;
534 u8 num_nodes;
535 u8 usage_model_id;
536 u32 _resvd;
537 struct asd_ms_conn_desc conn_desc[0];
538 struct asd_ms_node_desc node_desc[0];
539} __attribute__ ((packed));
540
541struct asd_ctrla_phy_entry {
542 u8 sas_addr[SAS_ADDR_SIZE];
543 u8 sas_link_rates; /* max in hi bits, min in low bits */
544 u8 flags;
545 u8 sata_link_rates;
546 u8 _r[5];
547} __attribute__ ((packed));
548
549struct asd_ctrla_phy_settings {
550 u8 id0; /* P'h'y */
551 u8 _r;
552 u16 next;
553 u8 num_phys; /* number of PHYs in the PCI function */
554 u8 _r2[3];
555 struct asd_ctrla_phy_entry phy_ent[ASD_MAX_PHYS];
556} __attribute__ ((packed));
557
558struct asd_ll_el {
559 u8 id0;
560 u8 id1;
561 __le16 next;
562 u8 something_here[0];
563} __attribute__ ((packed));
564
565static int asd_poll_flash(struct asd_ha_struct *asd_ha)
566{
567 int c;
568 u8 d;
569
570 for (c = 5000; c > 0; c--) {
571 d = asd_read_reg_byte(asd_ha, asd_ha->hw_prof.flash.bar);
572 d ^= asd_read_reg_byte(asd_ha, asd_ha->hw_prof.flash.bar);
573 if (!d)
574 return 0;
575 udelay(5);
576 }
577 return -ENOENT;
578}
579
580static int asd_reset_flash(struct asd_ha_struct *asd_ha)
581{
582 int err;
583
584 err = asd_poll_flash(asd_ha);
585 if (err)
586 return err;
587 asd_write_reg_byte(asd_ha, asd_ha->hw_prof.flash.bar, FLASH_RESET);
588 err = asd_poll_flash(asd_ha);
589
590 return err;
591}
592
593static inline int asd_read_flash_seg(struct asd_ha_struct *asd_ha,
594 void *buffer, u32 offs, int size)
595{
596 asd_read_reg_string(asd_ha, buffer, asd_ha->hw_prof.flash.bar+offs,
597 size);
598 return 0;
599}
600
601/**
602 * asd_find_flash_dir - finds and reads the flash directory
603 * @asd_ha: pointer to the host adapter structure
604 * @flash_dir: pointer to flash directory structure
605 *
606 * If found, the flash directory segment will be copied to
607 * @flash_dir. Return 1 if found, 0 if not.
608 */
609static int asd_find_flash_dir(struct asd_ha_struct *asd_ha,
610 struct asd_flash_dir *flash_dir)
611{
612 u32 v;
613 for (v = 0; v < FLASH_SIZE; v += FLASH_NEXT_ENTRY_OFFS) {
614 asd_read_flash_seg(asd_ha, flash_dir, v,
615 sizeof(FLASH_DIR_COOKIE)-1);
616 if (memcmp(flash_dir->cookie, FLASH_DIR_COOKIE,
617 sizeof(FLASH_DIR_COOKIE)-1) == 0) {
618 asd_ha->hw_prof.flash.dir_offs = v;
619 asd_read_flash_seg(asd_ha, flash_dir, v,
620 sizeof(*flash_dir));
621 return 1;
622 }
623 }
624 return 0;
625}
626
627static int asd_flash_getid(struct asd_ha_struct *asd_ha)
628{
629 int err = 0;
630 u32 reg, inc;
631
632 reg = asd_read_reg_dword(asd_ha, EXSICNFGR);
633
634 if (!(reg & FLASHEX)) {
635 ASD_DPRINTK("flash doesn't exist\n");
636 return -ENOENT;
637 }
638 if (pci_read_config_dword(asd_ha->pcidev, PCI_CONF_FLSH_BAR,
639 &asd_ha->hw_prof.flash.bar)) {
640 asd_printk("couldn't read PCI_CONF_FLSH_BAR of %s\n",
641 pci_name(asd_ha->pcidev));
642 return -ENOENT;
643 }
644 asd_ha->hw_prof.flash.present = 1;
645 asd_ha->hw_prof.flash.wide = reg & FLASHW ? 1 : 0;
646 err = asd_reset_flash(asd_ha);
647 if (err) {
648 ASD_DPRINTK("couldn't reset flash(%d)\n", err);
649 return err;
650 }
651 /* Get flash info. This would most likely be AMD Am29LV family flash.
652 * First try the sequence for word mode. It is the same as for
653 * 008B (byte mode only), 160B (word mode) and 800D (word mode).
654 */
655 reg = asd_ha->hw_prof.flash.bar;
656 inc = asd_ha->hw_prof.flash.wide ? 2 : 1;
657 asd_write_reg_byte(asd_ha, reg + 0x555, 0xAA);
658 asd_write_reg_byte(asd_ha, reg + 0x2AA, 0x55);
659 asd_write_reg_byte(asd_ha, reg + 0x555, 0x90);
660 asd_ha->hw_prof.flash.manuf = asd_read_reg_byte(asd_ha, reg);
661 asd_ha->hw_prof.flash.dev_id= asd_read_reg_byte(asd_ha,reg+inc);
662 asd_ha->hw_prof.flash.sec_prot = asd_read_reg_byte(asd_ha,reg+inc+inc);
663 /* Get out of autoselect mode. */
664 err = asd_reset_flash(asd_ha);
665
666 if (asd_ha->hw_prof.flash.manuf == FLASH_MANUF_AMD) {
667 ASD_DPRINTK("0Found FLASH(%d) manuf:%d, dev_id:0x%x, "
668 "sec_prot:%d\n",
669 asd_ha->hw_prof.flash.wide ? 16 : 8,
670 asd_ha->hw_prof.flash.manuf,
671 asd_ha->hw_prof.flash.dev_id,
672 asd_ha->hw_prof.flash.sec_prot);
673 return 0;
674 }
675
676 /* Ok, try the sequence for byte mode of 160B and 800D.
677 * We may actually never need this.
678 */
679 asd_write_reg_byte(asd_ha, reg + 0xAAA, 0xAA);
680 asd_write_reg_byte(asd_ha, reg + 0x555, 0x55);
681 asd_write_reg_byte(asd_ha, reg + 0xAAA, 0x90);
682 asd_ha->hw_prof.flash.manuf = asd_read_reg_byte(asd_ha, reg);
683 asd_ha->hw_prof.flash.dev_id = asd_read_reg_byte(asd_ha, reg + 2);
684 asd_ha->hw_prof.flash.sec_prot = asd_read_reg_byte(asd_ha, reg + 4);
685 err = asd_reset_flash(asd_ha);
686
687 if (asd_ha->hw_prof.flash.manuf == FLASH_MANUF_AMD) {
688 ASD_DPRINTK("1Found FLASH(%d) manuf:%d, dev_id:0x%x, "
689 "sec_prot:%d\n",
690 asd_ha->hw_prof.flash.wide ? 16 : 8,
691 asd_ha->hw_prof.flash.manuf,
692 asd_ha->hw_prof.flash.dev_id,
693 asd_ha->hw_prof.flash.sec_prot);
694 return 0;
695 }
696
697 return -ENOENT;
698}
699
700static u16 asd_calc_flash_chksum(u16 *p, int size)
701{
702 u16 chksum = 0;
703
704 while (size-- > 0)
705 chksum += *p++;
706
707 return chksum;
708}
709
710
711static int asd_find_flash_de(struct asd_flash_dir *flash_dir, u32 entry_type,
712 u32 *offs, u32 *size)
713{
714 int i;
715 struct asd_flash_de *de;
716
717 for (i = 0; i < FLASH_MAX_DIR_ENTRIES; i++) {
718 u32 type = le32_to_cpu(flash_dir->dir_entry[i].type);
719
720 type &= FLASH_DE_TYPE_MASK;
721 if (type == entry_type)
722 break;
723 }
724 if (i >= FLASH_MAX_DIR_ENTRIES)
725 return -ENOENT;
726 de = &flash_dir->dir_entry[i];
727 *offs = le32_to_cpu(de->offs);
728 *size = le32_to_cpu(de->pad_size);
729 return 0;
730}
731
732static int asd_validate_ms(struct asd_manuf_sec *ms)
733{
734 if (ms->sig[0] != 'S' || ms->sig[1] != 'M') {
735 ASD_DPRINTK("manuf sec: no valid sig(%c%c)\n",
736 ms->sig[0], ms->sig[1]);
737 return -ENOENT;
738 }
739 if (ms->maj != 0) {
740 asd_printk("unsupported manuf. sector. major version:%x\n",
741 ms->maj);
742 return -ENOENT;
743 }
744 ms->offs_next = le16_to_cpu((__force __le16) ms->offs_next);
745 ms->chksum = le16_to_cpu((__force __le16) ms->chksum);
746 ms->size = le16_to_cpu((__force __le16) ms->size);
747
748 if (asd_calc_flash_chksum((u16 *)ms, ms->size/2)) {
749 asd_printk("failed manuf sector checksum\n");
750 }
751
752 return 0;
753}
754
755static int asd_ms_get_sas_addr(struct asd_ha_struct *asd_ha,
756 struct asd_manuf_sec *ms)
757{
758 memcpy(asd_ha->hw_prof.sas_addr, ms->sas_addr, SAS_ADDR_SIZE);
759 return 0;
760}
761
762static int asd_ms_get_pcba_sn(struct asd_ha_struct *asd_ha,
763 struct asd_manuf_sec *ms)
764{
765 memcpy(asd_ha->hw_prof.pcba_sn, ms->pcba_sn, ASD_PCBA_SN_SIZE);
766 asd_ha->hw_prof.pcba_sn[ASD_PCBA_SN_SIZE] = '\0';
767 return 0;
768}
769
770/**
771 * asd_find_ll_by_id - find a linked list entry by its id
772 * @start: void pointer to the first element in the linked list
773 * @id0: the first byte of the id (offs 0)
774 * @id1: the second byte of the id (offs 1)
775 *
776 * @start has to be the _base_ element start, since the
777 * linked list entries's offset is from this pointer.
778 * Some linked list entries use only the first id, in which case
779 * you can pass 0xFF for the second.
780 */
781static void *asd_find_ll_by_id(void * const start, const u8 id0, const u8 id1)
782{
783 struct asd_ll_el *el = start;
784
785 do {
786 switch (id1) {
787 default:
788 if (el->id1 == id1)
789 case 0xFF:
790 if (el->id0 == id0)
791 return el;
792 }
793 el = start + le16_to_cpu(el->next);
794 } while (el != start);
795
796 return NULL;
797}
798
799/**
800 * asd_ms_get_phy_params - get phy parameters from the manufacturing sector
801 * @asd_ha: pointer to the host adapter structure
802 * @manuf_sec: pointer to the manufacturing sector
803 *
804 * The manufacturing sector contans also the linked list of sub-segments,
805 * since when it was read, its size was taken from the flash directory,
806 * not from the structure size.
807 *
808 * HIDDEN phys do not count in the total count. REPORTED phys cannot
809 * be enabled but are reported and counted towards the total.
810 * ENEBLEABLE phys are enabled by default and count towards the total.
811 * The absolute total phy number is ASD_MAX_PHYS. hw_prof->num_phys
812 * merely specifies the number of phys the host adapter decided to
813 * report. E.g., it is possible for phys 0, 1 and 2 to be HIDDEN,
814 * phys 3, 4 and 5 to be REPORTED and phys 6 and 7 to be ENEBLEABLE.
815 * In this case ASD_MAX_PHYS is 8, hw_prof->num_phys is 5, and only 2
816 * are actually enabled (enabled by default, max number of phys
817 * enableable in this case).
818 */
819static int asd_ms_get_phy_params(struct asd_ha_struct *asd_ha,
820 struct asd_manuf_sec *manuf_sec)
821{
822 int i;
823 int en_phys = 0;
824 int rep_phys = 0;
825 struct asd_manuf_phy_param *phy_param;
826 struct asd_manuf_phy_param dflt_phy_param;
827
828 phy_param = asd_find_ll_by_id(manuf_sec, 'P', 'M');
829 if (!phy_param) {
830 ASD_DPRINTK("ms: no phy parameters found\n");
831 ASD_DPRINTK("ms: Creating default phy parameters\n");
832 dflt_phy_param.sig[0] = 'P';
833 dflt_phy_param.sig[1] = 'M';
834 dflt_phy_param.maj = 0;
835 dflt_phy_param.min = 2;
836 dflt_phy_param.num_phy_desc = 8;
837 dflt_phy_param.phy_desc_size = sizeof(struct asd_manuf_phy_desc);
838 for (i =0; i < ASD_MAX_PHYS; i++) {
839 dflt_phy_param.phy_desc[i].state = 0;
840 dflt_phy_param.phy_desc[i].phy_id = i;
841 dflt_phy_param.phy_desc[i].phy_control_0 = 0xf6;
842 dflt_phy_param.phy_desc[i].phy_control_1 = 0x10;
843 dflt_phy_param.phy_desc[i].phy_control_2 = 0x43;
844 dflt_phy_param.phy_desc[i].phy_control_3 = 0xeb;
845 }
846
847 phy_param = &dflt_phy_param;
848
849 }
850
851 if (phy_param->maj != 0) {
852 asd_printk("unsupported manuf. phy param major version:0x%x\n",
853 phy_param->maj);
854 return -ENOENT;
855 }
856
857 ASD_DPRINTK("ms: num_phy_desc: %d\n", phy_param->num_phy_desc);
858 asd_ha->hw_prof.enabled_phys = 0;
859 for (i = 0; i < phy_param->num_phy_desc; i++) {
860 struct asd_manuf_phy_desc *pd = &phy_param->phy_desc[i];
861 switch (pd->state & 0xF) {
862 case MS_PHY_STATE_HIDDEN:
863 ASD_DPRINTK("ms: phy%d: HIDDEN\n", i);
864 continue;
865 case MS_PHY_STATE_REPORTED:
866 ASD_DPRINTK("ms: phy%d: REPORTED\n", i);
867 asd_ha->hw_prof.enabled_phys &= ~(1 << i);
868 rep_phys++;
869 continue;
870 case MS_PHY_STATE_ENABLEABLE:
871 ASD_DPRINTK("ms: phy%d: ENEBLEABLE\n", i);
872 asd_ha->hw_prof.enabled_phys |= (1 << i);
873 en_phys++;
874 break;
875 }
876 asd_ha->hw_prof.phy_desc[i].phy_control_0 = pd->phy_control_0;
877 asd_ha->hw_prof.phy_desc[i].phy_control_1 = pd->phy_control_1;
878 asd_ha->hw_prof.phy_desc[i].phy_control_2 = pd->phy_control_2;
879 asd_ha->hw_prof.phy_desc[i].phy_control_3 = pd->phy_control_3;
880 }
881 asd_ha->hw_prof.max_phys = rep_phys + en_phys;
882 asd_ha->hw_prof.num_phys = en_phys;
883 ASD_DPRINTK("ms: max_phys:0x%x, num_phys:0x%x\n",
884 asd_ha->hw_prof.max_phys, asd_ha->hw_prof.num_phys);
885 ASD_DPRINTK("ms: enabled_phys:0x%x\n", asd_ha->hw_prof.enabled_phys);
886 return 0;
887}
888
889static int asd_ms_get_connector_map(struct asd_ha_struct *asd_ha,
890 struct asd_manuf_sec *manuf_sec)
891{
892 struct asd_ms_conn_map *cm;
893
894 cm = asd_find_ll_by_id(manuf_sec, 'M', 'C');
895 if (!cm) {
896 ASD_DPRINTK("ms: no connector map found\n");
897 return 0;
898 }
899
900 if (cm->maj != 0) {
901 ASD_DPRINTK("ms: unsupported: connector map major version 0x%x"
902 "\n", cm->maj);
903 return -ENOENT;
904 }
905
906 /* XXX */
907
908 return 0;
909}
910
911
912/**
913 * asd_process_ms - find and extract information from the manufacturing sector
914 * @asd_ha: pointer to the host adapter structure
915 * @flash_dir: pointer to the flash directory
916 */
917static int asd_process_ms(struct asd_ha_struct *asd_ha,
918 struct asd_flash_dir *flash_dir)
919{
920 int err;
921 struct asd_manuf_sec *manuf_sec;
922 u32 offs, size;
923
924 err = asd_find_flash_de(flash_dir, FLASH_DE_MS, &offs, &size);
925 if (err) {
926 ASD_DPRINTK("Couldn't find the manuf. sector\n");
927 goto out;
928 }
929
930 if (size == 0)
931 goto out;
932
933 err = -ENOMEM;
934 manuf_sec = kmalloc(size, GFP_KERNEL);
935 if (!manuf_sec) {
936 ASD_DPRINTK("no mem for manuf sector\n");
937 goto out;
938 }
939
940 err = asd_read_flash_seg(asd_ha, (void *)manuf_sec, offs, size);
941 if (err) {
942 ASD_DPRINTK("couldn't read manuf sector at 0x%x, size 0x%x\n",
943 offs, size);
944 goto out2;
945 }
946
947 err = asd_validate_ms(manuf_sec);
948 if (err) {
949 ASD_DPRINTK("couldn't validate manuf sector\n");
950 goto out2;
951 }
952
953 err = asd_ms_get_sas_addr(asd_ha, manuf_sec);
954 if (err) {
955 ASD_DPRINTK("couldn't read the SAS_ADDR\n");
956 goto out2;
957 }
958 ASD_DPRINTK("manuf sect SAS_ADDR %llx\n",
959 SAS_ADDR(asd_ha->hw_prof.sas_addr));
960
961 err = asd_ms_get_pcba_sn(asd_ha, manuf_sec);
962 if (err) {
963 ASD_DPRINTK("couldn't read the PCBA SN\n");
964 goto out2;
965 }
966 ASD_DPRINTK("manuf sect PCBA SN %s\n", asd_ha->hw_prof.pcba_sn);
967
968 err = asd_ms_get_phy_params(asd_ha, manuf_sec);
969 if (err) {
970 ASD_DPRINTK("ms: couldn't get phy parameters\n");
971 goto out2;
972 }
973
974 err = asd_ms_get_connector_map(asd_ha, manuf_sec);
975 if (err) {
976 ASD_DPRINTK("ms: couldn't get connector map\n");
977 goto out2;
978 }
979
980out2:
981 kfree(manuf_sec);
982out:
983 return err;
984}
985
986static int asd_process_ctrla_phy_settings(struct asd_ha_struct *asd_ha,
987 struct asd_ctrla_phy_settings *ps)
988{
989 int i;
990 for (i = 0; i < ps->num_phys; i++) {
991 struct asd_ctrla_phy_entry *pe = &ps->phy_ent[i];
992
993 if (!PHY_ENABLED(asd_ha, i))
994 continue;
995 if (*(u64 *)pe->sas_addr == 0) {
996 asd_ha->hw_prof.enabled_phys &= ~(1 << i);
997 continue;
998 }
999 /* This is the SAS address which should be sent in IDENTIFY. */
1000 memcpy(asd_ha->hw_prof.phy_desc[i].sas_addr, pe->sas_addr,
1001 SAS_ADDR_SIZE);
1002 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
1003 (pe->sas_link_rates & 0xF0) >> 4;
1004 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
1005 (pe->sas_link_rates & 0x0F);
1006 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
1007 (pe->sata_link_rates & 0xF0) >> 4;
1008 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
1009 (pe->sata_link_rates & 0x0F);
1010 asd_ha->hw_prof.phy_desc[i].flags = pe->flags;
1011 ASD_DPRINTK("ctrla: phy%d: sas_addr: %llx, sas rate:0x%x-0x%x,"
1012 " sata rate:0x%x-0x%x, flags:0x%x\n",
1013 i,
1014 SAS_ADDR(asd_ha->hw_prof.phy_desc[i].sas_addr),
1015 asd_ha->hw_prof.phy_desc[i].max_sas_lrate,
1016 asd_ha->hw_prof.phy_desc[i].min_sas_lrate,
1017 asd_ha->hw_prof.phy_desc[i].max_sata_lrate,
1018 asd_ha->hw_prof.phy_desc[i].min_sata_lrate,
1019 asd_ha->hw_prof.phy_desc[i].flags);
1020 }
1021
1022 return 0;
1023}
1024
1025/**
1026 * asd_process_ctrl_a_user - process CTRL-A user settings
1027 * @asd_ha: pointer to the host adapter structure
1028 * @flash_dir: pointer to the flash directory
1029 */
1030static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
1031 struct asd_flash_dir *flash_dir)
1032{
1033 int err, i;
1034 u32 offs, size;
1035 struct asd_ll_el *el;
1036 struct asd_ctrla_phy_settings *ps;
1037 struct asd_ctrla_phy_settings dflt_ps;
1038
1039 err = asd_find_flash_de(flash_dir, FLASH_DE_CTRL_A_USER, &offs, &size);
1040 if (err) {
1041 ASD_DPRINTK("couldn't find CTRL-A user settings section\n");
1042 ASD_DPRINTK("Creating default CTRL-A user settings section\n");
1043
1044 dflt_ps.id0 = 'h';
1045 dflt_ps.num_phys = 8;
1046 for (i =0; i < ASD_MAX_PHYS; i++) {
1047 memcpy(dflt_ps.phy_ent[i].sas_addr,
1048 asd_ha->hw_prof.sas_addr, SAS_ADDR_SIZE);
1049 dflt_ps.phy_ent[i].sas_link_rates = 0x98;
1050 dflt_ps.phy_ent[i].flags = 0x0;
1051 dflt_ps.phy_ent[i].sata_link_rates = 0x0;
1052 }
1053
1054 size = sizeof(struct asd_ctrla_phy_settings);
1055 ps = &dflt_ps;
1056 }
1057
1058 if (size == 0)
1059 goto out;
1060
1061 err = -ENOMEM;
1062 el = kmalloc(size, GFP_KERNEL);
1063 if (!el) {
1064 ASD_DPRINTK("no mem for ctrla user settings section\n");
1065 goto out;
1066 }
1067
1068 err = asd_read_flash_seg(asd_ha, (void *)el, offs, size);
1069 if (err) {
1070 ASD_DPRINTK("couldn't read ctrla phy settings section\n");
1071 goto out2;
1072 }
1073
1074 err = -ENOENT;
1075 ps = asd_find_ll_by_id(el, 'h', 0xFF);
1076 if (!ps) {
1077 ASD_DPRINTK("couldn't find ctrla phy settings struct\n");
1078 goto out2;
1079 }
1080
1081 err = asd_process_ctrla_phy_settings(asd_ha, ps);
1082 if (err) {
1083 ASD_DPRINTK("couldn't process ctrla phy settings\n");
1084 goto out2;
1085 }
1086out2:
1087 kfree(el);
1088out:
1089 return err;
1090}
1091
1092/**
1093 * asd_read_flash - read flash memory
1094 * @asd_ha: pointer to the host adapter structure
1095 */
1096int asd_read_flash(struct asd_ha_struct *asd_ha)
1097{
1098 int err;
1099 struct asd_flash_dir *flash_dir;
1100
1101 err = asd_flash_getid(asd_ha);
1102 if (err)
1103 return err;
1104
1105 flash_dir = kmalloc(sizeof(*flash_dir), GFP_KERNEL);
1106 if (!flash_dir)
1107 return -ENOMEM;
1108
1109 err = -ENOENT;
1110 if (!asd_find_flash_dir(asd_ha, flash_dir)) {
1111 ASD_DPRINTK("couldn't find flash directory\n");
1112 goto out;
1113 }
1114
1115 if (le32_to_cpu(flash_dir->rev) != 2) {
1116 asd_printk("unsupported flash dir version:0x%x\n",
1117 le32_to_cpu(flash_dir->rev));
1118 goto out;
1119 }
1120
1121 err = asd_process_ms(asd_ha, flash_dir);
1122 if (err) {
1123 ASD_DPRINTK("couldn't process manuf sector settings\n");
1124 goto out;
1125 }
1126
1127 err = asd_process_ctrl_a_user(asd_ha, flash_dir);
1128 if (err) {
1129 ASD_DPRINTK("couldn't process CTRL-A user settings\n");
1130 goto out;
1131 }
1132
1133out:
1134 kfree(flash_dir);
1135 return err;
1136}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-30 01:54:33 -0500