2 * Aic94xx SAS/SATA driver SCB management.
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
7 * This file is licensed under GPLv2.
9 * This file is part of the aic94xx driver.
11 * The aic94xx driver is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; version 2 of the
16 * The aic94xx driver is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with the aic94xx driver; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 * $Id: //depot/aic94xx/aic94xx_scb.c#71 $
28 #include <linux/pci.h>
31 #include "aic94xx_reg.h"
32 #include "aic94xx_hwi.h"
33 #include "aic94xx_seq.h"
35 #include "aic94xx_dump.h"
37 /* ---------- EMPTY SCB ---------- */
41 #define PRIMITIVE_RECVD 0x08
42 #define PHY_EVENT 0x10
43 #define LINK_RESET_ERROR 0x18
44 #define TIMER_EVENT 0x20
45 #define REQ_TASK_ABORT 0xF0
46 #define REQ_DEVICE_RESET 0xF1
47 #define SIGNAL_NCQ_ERROR 0xF2
48 #define CLEAR_NCQ_ERROR 0xF3
50 #define PHY_EVENTS_STATUS (CURRENT_LOSS_OF_SIGNAL | CURRENT_OOB_DONE \
51 | CURRENT_SPINUP_HOLD | CURRENT_GTO_TIMEOUT \
54 static inline void get_lrate_mode(struct asd_phy *phy, u8 oob_mode)
56 switch (oob_mode & 7) {
58 /* FIXME: sas transport class doesn't have this */
59 phy->sas_phy.linkrate = PHY_LINKRATE_6;
60 phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
63 phy->sas_phy.linkrate = PHY_LINKRATE_3;
64 phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
67 phy->sas_phy.linkrate = PHY_LINKRATE_1_5;
68 phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
71 if (oob_mode & SAS_MODE)
72 phy->sas_phy.oob_mode = SAS_OOB_MODE;
73 else if (oob_mode & SATA_MODE)
74 phy->sas_phy.oob_mode = SATA_OOB_MODE;
77 static inline void asd_phy_event_tasklet(struct asd_ascb *ascb,
78 struct done_list_struct *dl)
80 struct asd_ha_struct *asd_ha = ascb->ha;
81 struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
82 int phy_id = dl->status_block[0] & DL_PHY_MASK;
83 struct asd_phy *phy = &asd_ha->phys[phy_id];
85 u8 oob_status = dl->status_block[1] & PHY_EVENTS_STATUS;
86 u8 oob_mode = dl->status_block[2];
89 case CURRENT_LOSS_OF_SIGNAL:
90 /* directly attached device was removed */
91 ASD_DPRINTK("phy%d: device unplugged\n", phy_id);
92 asd_turn_led(asd_ha, phy_id, 0);
93 sas_phy_disconnected(&phy->sas_phy);
94 sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
96 case CURRENT_OOB_DONE:
97 /* hot plugged device */
98 asd_turn_led(asd_ha, phy_id, 1);
99 get_lrate_mode(phy, oob_mode);
100 ASD_DPRINTK("phy%d device plugged: lrate:0x%x, proto:0x%x\n",
101 phy_id, phy->sas_phy.linkrate, phy->sas_phy.iproto);
102 sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
104 case CURRENT_SPINUP_HOLD:
105 /* hot plug SATA, no COMWAKE sent */
106 asd_turn_led(asd_ha, phy_id, 1);
107 sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
109 case CURRENT_GTO_TIMEOUT:
110 case CURRENT_OOB_ERROR:
111 ASD_DPRINTK("phy%d error while OOB: oob status:0x%x\n", phy_id,
112 dl->status_block[1]);
113 asd_turn_led(asd_ha, phy_id, 0);
114 sas_phy_disconnected(&phy->sas_phy);
115 sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR);
120 /* If phys are enabled sparsely, this will do the right thing. */
121 static inline unsigned ord_phy(struct asd_ha_struct *asd_ha,
124 u8 enabled_mask = asd_ha->hw_prof.enabled_phys;
127 for_each_phy(enabled_mask, enabled_mask, i) {
128 if (&asd_ha->phys[i] == phy)
136 * asd_get_attached_sas_addr -- extract/generate attached SAS address
137 * phy: pointer to asd_phy
138 * sas_addr: pointer to buffer where the SAS address is to be written
140 * This function extracts the SAS address from an IDENTIFY frame
141 * received. If OOB is SATA, then a SAS address is generated from the
144 * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
147 static inline void asd_get_attached_sas_addr(struct asd_phy *phy, u8 *sas_addr)
149 if (phy->sas_phy.frame_rcvd[0] == 0x34
150 && phy->sas_phy.oob_mode == SATA_OOB_MODE) {
151 struct asd_ha_struct *asd_ha = phy->sas_phy.ha->lldd_ha;
152 /* FIS device-to-host */
153 u64 addr = be64_to_cpu(*(__be64 *)phy->phy_desc->sas_addr);
155 addr += asd_ha->hw_prof.sata_name_base + ord_phy(asd_ha, phy);
156 *(__be64 *)sas_addr = cpu_to_be64(addr);
158 struct sas_identify_frame *idframe =
159 (void *) phy->sas_phy.frame_rcvd;
160 memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
164 static inline void asd_bytes_dmaed_tasklet(struct asd_ascb *ascb,
165 struct done_list_struct *dl,
166 int edb_id, int phy_id)
169 int edb_el = edb_id + ascb->edb_index;
170 struct asd_dma_tok *edb = ascb->ha->seq.edb_arr[edb_el];
171 struct asd_phy *phy = &ascb->ha->phys[phy_id];
172 struct sas_ha_struct *sas_ha = phy->sas_phy.ha;
173 u16 size = ((dl->status_block[3] & 7) << 8) | dl->status_block[2];
175 size = min(size, (u16) sizeof(phy->frame_rcvd));
177 spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
178 memcpy(phy->sas_phy.frame_rcvd, edb->vaddr, size);
179 phy->sas_phy.frame_rcvd_size = size;
180 asd_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
181 spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
182 asd_dump_frame_rcvd(phy, dl);
183 sas_ha->notify_port_event(&phy->sas_phy, PORTE_BYTES_DMAED);
186 static inline void asd_link_reset_err_tasklet(struct asd_ascb *ascb,
187 struct done_list_struct *dl,
190 struct asd_ha_struct *asd_ha = ascb->ha;
191 struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
192 struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
193 u8 lr_error = dl->status_block[1];
194 u8 retries_left = dl->status_block[2];
198 ASD_DPRINTK("phy%d: Receive ID timer expired\n", phy_id);
201 ASD_DPRINTK("phy%d: Loss of signal\n", phy_id);
204 ASD_DPRINTK("phy%d: Loss of dword sync\n", phy_id);
207 ASD_DPRINTK("phy%d: Receive FIS timeout\n", phy_id);
210 ASD_DPRINTK("phy%d: unknown link reset error code: 0x%x\n",
215 asd_turn_led(asd_ha, phy_id, 0);
216 sas_phy_disconnected(sas_phy);
217 sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
219 if (retries_left == 0) {
221 struct asd_ascb *cp = asd_ascb_alloc_list(ascb->ha, &num,
224 asd_printk("%s: out of memory\n", __FUNCTION__);
227 ASD_DPRINTK("phy%d: retries:0 performing link reset seq\n",
229 asd_build_control_phy(cp, phy_id, ENABLE_PHY);
230 if (asd_post_ascb_list(ascb->ha, cp, 1) != 0)
237 static inline void asd_primitive_rcvd_tasklet(struct asd_ascb *ascb,
238 struct done_list_struct *dl,
242 struct sas_ha_struct *sas_ha = &ascb->ha->sas_ha;
243 struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
244 u8 reg = dl->status_block[1];
245 u32 cont = dl->status_block[2] << ((reg & 3)*8);
249 case LmPRMSTAT0BYTE0:
255 ASD_DPRINTK("phy%d: BROADCAST change received:%d\n",
257 spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
258 sas_phy->sas_prim = ffs(cont);
259 spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
260 sas_ha->notify_port_event(sas_phy,PORTE_BROADCAST_RCVD);
264 ASD_DPRINTK("phy%d: unknown BREAK\n", phy_id);
268 ASD_DPRINTK("phy%d: primitive reg:0x%x, cont:0x%04x\n",
273 case LmPRMSTAT1BYTE0:
276 ASD_DPRINTK("phy%d: HARD_RESET primitive rcvd\n",
278 /* The sequencer disables all phys on that port.
279 * We have to re-enable the phys ourselves. */
280 sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
284 ASD_DPRINTK("phy%d: primitive reg:0x%x, cont:0x%04x\n",
290 ASD_DPRINTK("unknown primitive register:0x%x\n",
291 dl->status_block[1]);
297 * asd_invalidate_edb -- invalidate an EDB and if necessary post the ESCB
298 * @ascb: pointer to Empty SCB
299 * @edb_id: index [0,6] to the empty data buffer which is to be invalidated
301 * After an EDB has been invalidated, if all EDBs in this ESCB have been
302 * invalidated, the ESCB is posted back to the sequencer.
303 * Context is tasklet/IRQ.
305 void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id)
307 struct asd_seq_data *seq = &ascb->ha->seq;
308 struct empty_scb *escb = &ascb->scb->escb;
309 struct sg_el *eb = &escb->eb[edb_id];
310 struct asd_dma_tok *edb = seq->edb_arr[ascb->edb_index + edb_id];
312 memset(edb->vaddr, 0, ASD_EDB_SIZE);
313 eb->flags |= ELEMENT_NOT_VALID;
316 if (escb->num_valid == 0) {
318 /* ASD_DPRINTK("reposting escb: vaddr: 0x%p, "
319 "dma_handle: 0x%08llx, next: 0x%08llx, "
320 "index:%d, opcode:0x%02x\n",
322 (u64)ascb->dma_scb.dma_handle,
323 le64_to_cpu(ascb->scb->header.next_scb),
324 le16_to_cpu(ascb->scb->header.index),
325 ascb->scb->header.opcode);
327 escb->num_valid = ASD_EDBS_PER_SCB;
328 for (i = 0; i < ASD_EDBS_PER_SCB; i++)
329 escb->eb[i].flags = 0;
330 if (!list_empty(&ascb->list))
331 list_del_init(&ascb->list);
332 i = asd_post_escb_list(ascb->ha, ascb, 1);
334 asd_printk("couldn't post escb, err:%d\n", i);
338 static void escb_tasklet_complete(struct asd_ascb *ascb,
339 struct done_list_struct *dl)
341 struct asd_ha_struct *asd_ha = ascb->ha;
342 struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
343 int edb = (dl->opcode & DL_PHY_MASK) - 1; /* [0xc1,0xc7] -> [0,6] */
344 u8 sb_opcode = dl->status_block[0];
345 int phy_id = sb_opcode & DL_PHY_MASK;
346 struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
348 if (edb > 6 || edb < 0) {
349 ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n",
351 ASD_DPRINTK("sb_opcode : 0x%x, phy_id: 0x%x\n",
353 ASD_DPRINTK("escb: vaddr: 0x%p, "
354 "dma_handle: 0x%08llx, next: 0x%08llx, "
355 "index:%d, opcode:0x%02x\n",
357 (u64)ascb->dma_scb.dma_handle,
358 le64_to_cpu(ascb->scb->header.next_scb),
359 le16_to_cpu(ascb->scb->header.index),
360 ascb->scb->header.opcode);
363 sb_opcode &= ~DL_PHY_MASK;
367 ASD_DPRINTK("%s: phy%d: BYTES_DMAED\n", __FUNCTION__, phy_id);
368 asd_bytes_dmaed_tasklet(ascb, dl, edb, phy_id);
370 case PRIMITIVE_RECVD:
371 ASD_DPRINTK("%s: phy%d: PRIMITIVE_RECVD\n", __FUNCTION__,
373 asd_primitive_rcvd_tasklet(ascb, dl, phy_id);
376 ASD_DPRINTK("%s: phy%d: PHY_EVENT\n", __FUNCTION__, phy_id);
377 asd_phy_event_tasklet(ascb, dl);
379 case LINK_RESET_ERROR:
380 ASD_DPRINTK("%s: phy%d: LINK_RESET_ERROR\n", __FUNCTION__,
382 asd_link_reset_err_tasklet(ascb, dl, phy_id);
385 ASD_DPRINTK("%s: phy%d: TIMER_EVENT, lost dw sync\n",
386 __FUNCTION__, phy_id);
387 asd_turn_led(asd_ha, phy_id, 0);
388 /* the device is gone */
389 sas_phy_disconnected(sas_phy);
390 sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT);
393 ASD_DPRINTK("%s: phy%d: REQ_TASK_ABORT\n", __FUNCTION__,
396 case REQ_DEVICE_RESET:
397 ASD_DPRINTK("%s: phy%d: REQ_DEVICE_RESET\n", __FUNCTION__,
400 case SIGNAL_NCQ_ERROR:
401 ASD_DPRINTK("%s: phy%d: SIGNAL_NCQ_ERROR\n", __FUNCTION__,
404 case CLEAR_NCQ_ERROR:
405 ASD_DPRINTK("%s: phy%d: CLEAR_NCQ_ERROR\n", __FUNCTION__,
409 ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __FUNCTION__,
411 ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n",
413 ASD_DPRINTK("sb_opcode : 0x%x, phy_id: 0x%x\n",
415 ASD_DPRINTK("escb: vaddr: 0x%p, "
416 "dma_handle: 0x%08llx, next: 0x%08llx, "
417 "index:%d, opcode:0x%02x\n",
419 (u64)ascb->dma_scb.dma_handle,
420 le64_to_cpu(ascb->scb->header.next_scb),
421 le16_to_cpu(ascb->scb->header.index),
422 ascb->scb->header.opcode);
427 asd_invalidate_edb(ascb, edb);
430 int asd_init_post_escbs(struct asd_ha_struct *asd_ha)
432 struct asd_seq_data *seq = &asd_ha->seq;
435 for (i = 0; i < seq->num_escbs; i++)
436 seq->escb_arr[i]->tasklet_complete = escb_tasklet_complete;
438 ASD_DPRINTK("posting %d escbs\n", i);
439 return asd_post_escb_list(asd_ha, seq->escb_arr[0], seq->num_escbs);
442 /* ---------- CONTROL PHY ---------- */
444 #define CONTROL_PHY_STATUS (CURRENT_DEVICE_PRESENT | CURRENT_OOB_DONE \
445 | CURRENT_SPINUP_HOLD | CURRENT_GTO_TIMEOUT \
449 * control_phy_tasklet_complete -- tasklet complete for CONTROL PHY ascb
450 * @ascb: pointer to an ascb
451 * @dl: pointer to the done list entry
453 * This function completes a CONTROL PHY scb and frees the ascb.
455 * - an LED blinks if there is IO though it,
456 * - if a device is connected to the LED, it is lit,
457 * - if no device is connected to the LED, is is dimmed (off).
459 static void control_phy_tasklet_complete(struct asd_ascb *ascb,
460 struct done_list_struct *dl)
462 struct asd_ha_struct *asd_ha = ascb->ha;
463 struct scb *scb = ascb->scb;
464 struct control_phy *control_phy = &scb->control_phy;
465 u8 phy_id = control_phy->phy_id;
466 struct asd_phy *phy = &ascb->ha->phys[phy_id];
468 u8 status = dl->status_block[0];
469 u8 oob_status = dl->status_block[1];
470 u8 oob_mode = dl->status_block[2];
471 /* u8 oob_signals= dl->status_block[3]; */
474 ASD_DPRINTK("%s: phy%d status block opcode:0x%x\n",
475 __FUNCTION__, phy_id, status);
479 switch (control_phy->sub_func) {
481 asd_ha->hw_prof.enabled_phys &= ~(1 << phy_id);
482 asd_turn_led(asd_ha, phy_id, 0);
483 asd_control_led(asd_ha, phy_id, 0);
484 ASD_DPRINTK("%s: disable phy%d\n", __FUNCTION__, phy_id);
488 asd_control_led(asd_ha, phy_id, 1);
489 if (oob_status & CURRENT_OOB_DONE) {
490 asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
491 get_lrate_mode(phy, oob_mode);
492 asd_turn_led(asd_ha, phy_id, 1);
493 ASD_DPRINTK("%s: phy%d, lrate:0x%x, proto:0x%x\n",
494 __FUNCTION__, phy_id,phy->sas_phy.linkrate,
495 phy->sas_phy.iproto);
496 } else if (oob_status & CURRENT_SPINUP_HOLD) {
497 asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
498 asd_turn_led(asd_ha, phy_id, 1);
499 ASD_DPRINTK("%s: phy%d, spinup hold\n", __FUNCTION__,
501 } else if (oob_status & CURRENT_ERR_MASK) {
502 asd_turn_led(asd_ha, phy_id, 0);
503 ASD_DPRINTK("%s: phy%d: error: oob status:0x%02x\n",
504 __FUNCTION__, phy_id, oob_status);
505 } else if (oob_status & (CURRENT_HOT_PLUG_CNCT
506 | CURRENT_DEVICE_PRESENT)) {
507 asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
508 asd_turn_led(asd_ha, phy_id, 1);
509 ASD_DPRINTK("%s: phy%d: hot plug or device present\n",
510 __FUNCTION__, phy_id);
512 asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
513 asd_turn_led(asd_ha, phy_id, 0);
514 ASD_DPRINTK("%s: phy%d: no device present: "
516 __FUNCTION__, phy_id, oob_status);
519 case RELEASE_SPINUP_HOLD:
521 case EXECUTE_HARD_RESET:
522 ASD_DPRINTK("%s: phy%d: sub_func:0x%x\n", __FUNCTION__,
523 phy_id, control_phy->sub_func);
527 ASD_DPRINTK("%s: phy%d: sub_func:0x%x?\n", __FUNCTION__,
528 phy_id, control_phy->sub_func);
535 static inline void set_speed_mask(u8 *speed_mask, struct asd_phy_desc *pd)
537 /* disable all speeds, then enable defaults */
538 *speed_mask = SAS_SPEED_60_DIS | SAS_SPEED_30_DIS | SAS_SPEED_15_DIS
539 | SATA_SPEED_30_DIS | SATA_SPEED_15_DIS;
541 switch (pd->max_sas_lrate) {
543 *speed_mask &= ~SAS_SPEED_60_DIS;
546 *speed_mask &= ~SAS_SPEED_30_DIS;
547 case PHY_LINKRATE_1_5:
548 *speed_mask &= ~SAS_SPEED_15_DIS;
551 switch (pd->min_sas_lrate) {
553 *speed_mask |= SAS_SPEED_30_DIS;
555 *speed_mask |= SAS_SPEED_15_DIS;
557 case PHY_LINKRATE_1_5:
562 switch (pd->max_sata_lrate) {
564 *speed_mask &= ~SATA_SPEED_30_DIS;
566 case PHY_LINKRATE_1_5:
567 *speed_mask &= ~SATA_SPEED_15_DIS;
570 switch (pd->min_sata_lrate) {
572 *speed_mask |= SATA_SPEED_15_DIS;
574 case PHY_LINKRATE_1_5:
581 * asd_build_control_phy -- build a CONTROL PHY SCB
582 * @ascb: pointer to an ascb
583 * @phy_id: phy id to control, integer
584 * @subfunc: subfunction, what to actually to do the phy
586 * This function builds a CONTROL PHY scb. No allocation of any kind
587 * is performed. @ascb is allocated with the list function.
588 * The caller can override the ascb->tasklet_complete to point
589 * to its own callback function. It must call asd_ascb_free()
590 * at its tasklet complete function.
591 * See the default implementation.
593 void asd_build_control_phy(struct asd_ascb *ascb, int phy_id, u8 subfunc)
595 struct asd_phy *phy = &ascb->ha->phys[phy_id];
596 struct scb *scb = ascb->scb;
597 struct control_phy *control_phy = &scb->control_phy;
599 scb->header.opcode = CONTROL_PHY;
600 control_phy->phy_id = (u8) phy_id;
601 control_phy->sub_func = subfunc;
604 case EXECUTE_HARD_RESET: /* 0x81 */
605 case ENABLE_PHY: /* 0x01 */
606 /* decide hot plug delay */
607 control_phy->hot_plug_delay = HOTPLUG_DELAY_TIMEOUT;
609 /* decide speed mask */
610 set_speed_mask(&control_phy->speed_mask, phy->phy_desc);
612 /* initiator port settings are in the hi nibble */
613 if (phy->sas_phy.role == PHY_ROLE_INITIATOR)
614 control_phy->port_type = SAS_PROTO_ALL << 4;
615 else if (phy->sas_phy.role == PHY_ROLE_TARGET)
616 control_phy->port_type = SAS_PROTO_ALL;
618 control_phy->port_type =
619 (SAS_PROTO_ALL << 4) | SAS_PROTO_ALL;
621 /* link reset retries, this should be nominal */
622 control_phy->link_reset_retries = 10;
624 case RELEASE_SPINUP_HOLD: /* 0x02 */
625 /* decide the func_mask */
626 control_phy->func_mask = FUNCTION_MASK_DEFAULT;
627 if (phy->phy_desc->flags & ASD_SATA_SPINUP_HOLD)
628 control_phy->func_mask &= ~SPINUP_HOLD_DIS;
630 control_phy->func_mask |= SPINUP_HOLD_DIS;
633 control_phy->conn_handle = cpu_to_le16(0xFFFF);
635 ascb->tasklet_complete = control_phy_tasklet_complete;
638 /* ---------- INITIATE LINK ADM TASK ---------- */
640 static void link_adm_tasklet_complete(struct asd_ascb *ascb,
641 struct done_list_struct *dl)
643 u8 opcode = dl->opcode;
644 struct initiate_link_adm *link_adm = &ascb->scb->link_adm;
645 u8 phy_id = link_adm->phy_id;
647 if (opcode != TC_NO_ERROR) {
648 asd_printk("phy%d: link adm task 0x%x completed with error "
649 "0x%x\n", phy_id, link_adm->sub_func, opcode);
651 ASD_DPRINTK("phy%d: link adm task 0x%x: 0x%x\n",
652 phy_id, link_adm->sub_func, opcode);
657 void asd_build_initiate_link_adm_task(struct asd_ascb *ascb, int phy_id,
660 struct scb *scb = ascb->scb;
661 struct initiate_link_adm *link_adm = &scb->link_adm;
663 scb->header.opcode = INITIATE_LINK_ADM_TASK;
665 link_adm->phy_id = phy_id;
666 link_adm->sub_func = subfunc;
667 link_adm->conn_handle = cpu_to_le16(0xFFFF);
669 ascb->tasklet_complete = link_adm_tasklet_complete;
672 /* ---------- SCB timer ---------- */
675 * asd_ascb_timedout -- called when a pending SCB's timer has expired
676 * @data: unsigned long, a pointer to the ascb in question
678 * This is the default timeout function which does the most necessary.
679 * Upper layers can implement their own timeout function, say to free
680 * resources they have with this SCB, and then call this one at the
681 * end of their timeout function. To do this, one should initialize
682 * the ascb->timer.{function, data, expires} prior to calling the post
683 * funcion. The timer is started by the post function.
685 void asd_ascb_timedout(unsigned long data)
687 struct asd_ascb *ascb = (void *) data;
688 struct asd_seq_data *seq = &ascb->ha->seq;
691 ASD_DPRINTK("scb:0x%x timed out\n", ascb->scb->header.opcode);
693 spin_lock_irqsave(&seq->pend_q_lock, flags);
695 list_del_init(&ascb->list);
696 spin_unlock_irqrestore(&seq->pend_q_lock, flags);
701 /* ---------- CONTROL PHY ---------- */
703 /* Given the spec value, return a driver value. */
704 static const int phy_func_table[] = {
705 [PHY_FUNC_NOP] = PHY_NO_OP,
706 [PHY_FUNC_LINK_RESET] = ENABLE_PHY,
707 [PHY_FUNC_HARD_RESET] = EXECUTE_HARD_RESET,
708 [PHY_FUNC_DISABLE] = DISABLE_PHY,
709 [PHY_FUNC_RELEASE_SPINUP_HOLD] = RELEASE_SPINUP_HOLD,
712 int asd_control_phy(struct asd_sas_phy *phy, enum phy_func func)
714 struct asd_ha_struct *asd_ha = phy->ha->lldd_ha;
715 struct asd_ascb *ascb;
718 if (func == PHY_FUNC_CLEAR_ERROR_LOG)
721 ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);
725 asd_build_control_phy(ascb, phy->id, phy_func_table[func]);
726 res = asd_post_ascb_list(asd_ha, ascb , 1);