x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / scsi / isci / port_config.c
blobac879745ef8007ab2a4973aff26e3c950e8f1dba
1 /*
2 * This file is provided under a dual BSD/GPLv2 license. When using or
3 * redistributing this file, you may do so under either license.
5 * GPL LICENSE SUMMARY
7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
11 * published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
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20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
24 * BSD LICENSE
26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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30 * modification, are permitted provided that the following conditions
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56 #include "host.h"
58 #define SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT (10)
59 #define SCIC_SDS_APC_RECONFIGURATION_TIMEOUT (10)
60 #define SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION (1000)
62 enum SCIC_SDS_APC_ACTIVITY {
63 SCIC_SDS_APC_SKIP_PHY,
64 SCIC_SDS_APC_ADD_PHY,
65 SCIC_SDS_APC_START_TIMER,
67 SCIC_SDS_APC_ACTIVITY_MAX
71 * ******************************************************************************
72 * General port configuration agent routines
73 * ****************************************************************************** */
75 /**
77 * @address_one: A SAS Address to be compared.
78 * @address_two: A SAS Address to be compared.
80 * Compare the two SAS Address and if SAS Address One is greater than SAS
81 * Address Two then return > 0 else if SAS Address One is less than SAS Address
82 * Two return < 0 Otherwise they are the same return 0 A signed value of x > 0
83 * > y where x is returned for Address One > Address Two y is returned for
84 * Address One < Address Two 0 is returned ofr Address One = Address Two
86 static s32 sci_sas_address_compare(
87 struct sci_sas_address address_one,
88 struct sci_sas_address address_two)
90 if (address_one.high > address_two.high) {
91 return 1;
92 } else if (address_one.high < address_two.high) {
93 return -1;
94 } else if (address_one.low > address_two.low) {
95 return 1;
96 } else if (address_one.low < address_two.low) {
97 return -1;
100 /* The two SAS Address must be identical */
101 return 0;
106 * @controller: The controller object used for the port search.
107 * @phy: The phy object to match.
109 * This routine will find a matching port for the phy. This means that the
110 * port and phy both have the same broadcast sas address and same received sas
111 * address. The port address or the NULL if there is no matching
112 * port. port address if the port can be found to match the phy.
113 * NULL if there is no matching port for the phy.
115 static struct isci_port *sci_port_configuration_agent_find_port(
116 struct isci_host *ihost,
117 struct isci_phy *iphy)
119 u8 i;
120 struct sci_sas_address port_sas_address;
121 struct sci_sas_address port_attached_device_address;
122 struct sci_sas_address phy_sas_address;
123 struct sci_sas_address phy_attached_device_address;
126 * Since this phy can be a member of a wide port check to see if one or
127 * more phys match the sent and received SAS address as this phy in which
128 * case it should participate in the same port.
130 sci_phy_get_sas_address(iphy, &phy_sas_address);
131 sci_phy_get_attached_sas_address(iphy, &phy_attached_device_address);
133 for (i = 0; i < ihost->logical_port_entries; i++) {
134 struct isci_port *iport = &ihost->ports[i];
136 sci_port_get_sas_address(iport, &port_sas_address);
137 sci_port_get_attached_sas_address(iport, &port_attached_device_address);
139 if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 &&
140 sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0)
141 return iport;
144 return NULL;
149 * @controller: This is the controller object that contains the port agent
150 * @port_agent: This is the port configruation agent for the controller.
152 * This routine will validate the port configuration is correct for the SCU
153 * hardware. The SCU hardware allows for port configurations as follows. LP0
154 * -> (PE0), (PE0, PE1), (PE0, PE1, PE2, PE3) LP1 -> (PE1) LP2 -> (PE2), (PE2,
155 * PE3) LP3 -> (PE3) enum sci_status SCI_SUCCESS the port configuration is valid for
156 * this port configuration agent. SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION
157 * the port configuration is not valid for this port configuration agent.
159 static enum sci_status sci_port_configuration_agent_validate_ports(
160 struct isci_host *ihost,
161 struct sci_port_configuration_agent *port_agent)
163 struct sci_sas_address first_address;
164 struct sci_sas_address second_address;
167 * Sanity check the max ranges for all the phys the max index
168 * is always equal to the port range index */
169 if (port_agent->phy_valid_port_range[0].max_index != 0 ||
170 port_agent->phy_valid_port_range[1].max_index != 1 ||
171 port_agent->phy_valid_port_range[2].max_index != 2 ||
172 port_agent->phy_valid_port_range[3].max_index != 3)
173 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
176 * This is a request to configure a single x4 port or at least attempt
177 * to make all the phys into a single port */
178 if (port_agent->phy_valid_port_range[0].min_index == 0 &&
179 port_agent->phy_valid_port_range[1].min_index == 0 &&
180 port_agent->phy_valid_port_range[2].min_index == 0 &&
181 port_agent->phy_valid_port_range[3].min_index == 0)
182 return SCI_SUCCESS;
185 * This is a degenerate case where phy 1 and phy 2 are assigned
186 * to the same port this is explicitly disallowed by the hardware
187 * unless they are part of the same x4 port and this condition was
188 * already checked above. */
189 if (port_agent->phy_valid_port_range[2].min_index == 1) {
190 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
194 * PE0 and PE3 can never have the same SAS Address unless they
195 * are part of the same x4 wide port and we have already checked
196 * for this condition. */
197 sci_phy_get_sas_address(&ihost->phys[0], &first_address);
198 sci_phy_get_sas_address(&ihost->phys[3], &second_address);
200 if (sci_sas_address_compare(first_address, second_address) == 0) {
201 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
205 * PE0 and PE1 are configured into a 2x1 ports make sure that the
206 * SAS Address for PE0 and PE2 are different since they can not be
207 * part of the same port. */
208 if (port_agent->phy_valid_port_range[0].min_index == 0 &&
209 port_agent->phy_valid_port_range[1].min_index == 1) {
210 sci_phy_get_sas_address(&ihost->phys[0], &first_address);
211 sci_phy_get_sas_address(&ihost->phys[2], &second_address);
213 if (sci_sas_address_compare(first_address, second_address) == 0) {
214 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
219 * PE2 and PE3 are configured into a 2x1 ports make sure that the
220 * SAS Address for PE1 and PE3 are different since they can not be
221 * part of the same port. */
222 if (port_agent->phy_valid_port_range[2].min_index == 2 &&
223 port_agent->phy_valid_port_range[3].min_index == 3) {
224 sci_phy_get_sas_address(&ihost->phys[1], &first_address);
225 sci_phy_get_sas_address(&ihost->phys[3], &second_address);
227 if (sci_sas_address_compare(first_address, second_address) == 0) {
228 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
232 return SCI_SUCCESS;
236 * ******************************************************************************
237 * Manual port configuration agent routines
238 * ****************************************************************************** */
240 /* verify all of the phys in the same port are using the same SAS address */
241 static enum sci_status
242 sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost,
243 struct sci_port_configuration_agent *port_agent)
245 u32 phy_mask;
246 u32 assigned_phy_mask;
247 struct sci_sas_address sas_address;
248 struct sci_sas_address phy_assigned_address;
249 u8 port_index;
250 u8 phy_index;
252 assigned_phy_mask = 0;
253 sas_address.high = 0;
254 sas_address.low = 0;
256 for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) {
257 phy_mask = ihost->oem_parameters.ports[port_index].phy_mask;
259 if (!phy_mask)
260 continue;
262 * Make sure that one or more of the phys were not already assinged to
263 * a different port. */
264 if ((phy_mask & ~assigned_phy_mask) == 0) {
265 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
268 /* Find the starting phy index for this round through the loop */
269 for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) {
270 if ((phy_mask & (1 << phy_index)) == 0)
271 continue;
272 sci_phy_get_sas_address(&ihost->phys[phy_index],
273 &sas_address);
276 * The phy_index can be used as the starting point for the
277 * port range since the hardware starts all logical ports
278 * the same as the PE index. */
279 port_agent->phy_valid_port_range[phy_index].min_index = port_index;
280 port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
282 if (phy_index != port_index) {
283 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
286 break;
290 * See how many additional phys are being added to this logical port.
291 * Note: We have not moved the current phy_index so we will actually
292 * compare the startting phy with itself.
293 * This is expected and required to add the phy to the port. */
294 while (phy_index < SCI_MAX_PHYS) {
295 if ((phy_mask & (1 << phy_index)) == 0)
296 continue;
297 sci_phy_get_sas_address(&ihost->phys[phy_index],
298 &phy_assigned_address);
300 if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) {
302 * The phy mask specified that this phy is part of the same port
303 * as the starting phy and it is not so fail this configuration */
304 return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
307 port_agent->phy_valid_port_range[phy_index].min_index = port_index;
308 port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
310 sci_port_add_phy(&ihost->ports[port_index],
311 &ihost->phys[phy_index]);
313 assigned_phy_mask |= (1 << phy_index);
314 phy_index++;
319 return sci_port_configuration_agent_validate_ports(ihost, port_agent);
322 static void mpc_agent_timeout(unsigned long data)
324 u8 index;
325 struct sci_timer *tmr = (struct sci_timer *)data;
326 struct sci_port_configuration_agent *port_agent;
327 struct isci_host *ihost;
328 unsigned long flags;
329 u16 configure_phy_mask;
331 port_agent = container_of(tmr, typeof(*port_agent), timer);
332 ihost = container_of(port_agent, typeof(*ihost), port_agent);
334 spin_lock_irqsave(&ihost->scic_lock, flags);
336 if (tmr->cancel)
337 goto done;
339 port_agent->timer_pending = false;
341 /* Find the mask of phys that are reported read but as yet unconfigured into a port */
342 configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask;
344 for (index = 0; index < SCI_MAX_PHYS; index++) {
345 struct isci_phy *iphy = &ihost->phys[index];
347 if (configure_phy_mask & (1 << index)) {
348 port_agent->link_up_handler(ihost, port_agent,
349 phy_get_non_dummy_port(iphy),
350 iphy);
354 done:
355 spin_unlock_irqrestore(&ihost->scic_lock, flags);
358 static void sci_mpc_agent_link_up(struct isci_host *ihost,
359 struct sci_port_configuration_agent *port_agent,
360 struct isci_port *iport,
361 struct isci_phy *iphy)
363 /* If the port is NULL then the phy was not assigned to a port.
364 * This is because the phy was not given the same SAS Address as
365 * the other PHYs in the port.
367 if (!iport)
368 return;
370 port_agent->phy_ready_mask |= (1 << iphy->phy_index);
371 sci_port_link_up(iport, iphy);
372 if ((iport->active_phy_mask & (1 << iphy->phy_index)))
373 port_agent->phy_configured_mask |= (1 << iphy->phy_index);
378 * @controller: This is the controller object that receives the link down
379 * notification.
380 * @port: This is the port object associated with the phy. If the is no
381 * associated port this is an NULL. The port is an invalid
382 * handle only if the phy was never port of this port. This happens when
383 * the phy is not broadcasting the same SAS address as the other phys in the
384 * assigned port.
385 * @phy: This is the phy object which has gone link down.
387 * This function handles the manual port configuration link down notifications.
388 * Since all ports and phys are associated at initialization time we just turn
389 * around and notifiy the port object of the link down event. If this PHY is
390 * not associated with a port there is no action taken. Is it possible to get a
391 * link down notification from a phy that has no assocoated port?
393 static void sci_mpc_agent_link_down(
394 struct isci_host *ihost,
395 struct sci_port_configuration_agent *port_agent,
396 struct isci_port *iport,
397 struct isci_phy *iphy)
399 if (iport != NULL) {
401 * If we can form a new port from the remainder of the phys
402 * then we want to start the timer to allow the SCI User to
403 * cleanup old devices and rediscover the port before
404 * rebuilding the port with the phys that remain in the ready
405 * state.
407 port_agent->phy_ready_mask &= ~(1 << iphy->phy_index);
408 port_agent->phy_configured_mask &= ~(1 << iphy->phy_index);
411 * Check to see if there are more phys waiting to be
412 * configured into a port. If there are allow the SCI User
413 * to tear down this port, if necessary, and then reconstruct
414 * the port after the timeout.
416 if ((port_agent->phy_configured_mask == 0x0000) &&
417 (port_agent->phy_ready_mask != 0x0000) &&
418 !port_agent->timer_pending) {
419 port_agent->timer_pending = true;
421 sci_mod_timer(&port_agent->timer,
422 SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT);
425 sci_port_link_down(iport, iphy);
429 /* verify phys are assigned a valid SAS address for automatic port
430 * configuration mode.
432 static enum sci_status
433 sci_apc_agent_validate_phy_configuration(struct isci_host *ihost,
434 struct sci_port_configuration_agent *port_agent)
436 u8 phy_index;
437 u8 port_index;
438 struct sci_sas_address sas_address;
439 struct sci_sas_address phy_assigned_address;
441 phy_index = 0;
443 while (phy_index < SCI_MAX_PHYS) {
444 port_index = phy_index;
446 /* Get the assigned SAS Address for the first PHY on the controller. */
447 sci_phy_get_sas_address(&ihost->phys[phy_index],
448 &sas_address);
450 while (++phy_index < SCI_MAX_PHYS) {
451 sci_phy_get_sas_address(&ihost->phys[phy_index],
452 &phy_assigned_address);
454 /* Verify each of the SAS address are all the same for every PHY */
455 if (sci_sas_address_compare(sas_address, phy_assigned_address) == 0) {
456 port_agent->phy_valid_port_range[phy_index].min_index = port_index;
457 port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
458 } else {
459 port_agent->phy_valid_port_range[phy_index].min_index = phy_index;
460 port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
461 break;
466 return sci_port_configuration_agent_validate_ports(ihost, port_agent);
470 * This routine will restart the automatic port configuration timeout
471 * timer for the next time period. This could be caused by either a link
472 * down event or a link up event where we can not yet tell to which a phy
473 * belongs.
475 static void sci_apc_agent_start_timer(struct sci_port_configuration_agent *port_agent,
476 u32 timeout)
478 port_agent->timer_pending = true;
479 sci_mod_timer(&port_agent->timer, timeout);
482 static void sci_apc_agent_configure_ports(struct isci_host *ihost,
483 struct sci_port_configuration_agent *port_agent,
484 struct isci_phy *iphy,
485 bool start_timer)
487 u8 port_index;
488 enum sci_status status;
489 struct isci_port *iport;
490 enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY;
492 iport = sci_port_configuration_agent_find_port(ihost, iphy);
494 if (iport) {
495 if (sci_port_is_valid_phy_assignment(iport, iphy->phy_index))
496 apc_activity = SCIC_SDS_APC_ADD_PHY;
497 else
498 apc_activity = SCIC_SDS_APC_SKIP_PHY;
499 } else {
501 * There is no matching Port for this PHY so lets search through the
502 * Ports and see if we can add the PHY to its own port or maybe start
503 * the timer and wait to see if a wider port can be made.
505 * Note the break when we reach the condition of the port id == phy id */
506 for (port_index = port_agent->phy_valid_port_range[iphy->phy_index].min_index;
507 port_index <= port_agent->phy_valid_port_range[iphy->phy_index].max_index;
508 port_index++) {
510 iport = &ihost->ports[port_index];
512 /* First we must make sure that this PHY can be added to this Port. */
513 if (sci_port_is_valid_phy_assignment(iport, iphy->phy_index)) {
515 * Port contains a PHY with a greater PHY ID than the current
516 * PHY that has gone link up. This phy can not be part of any
517 * port so skip it and move on. */
518 if (iport->active_phy_mask > (1 << iphy->phy_index)) {
519 apc_activity = SCIC_SDS_APC_SKIP_PHY;
520 break;
524 * We have reached the end of our Port list and have not found
525 * any reason why we should not either add the PHY to the port
526 * or wait for more phys to become active. */
527 if (iport->physical_port_index == iphy->phy_index) {
529 * The Port either has no active PHYs.
530 * Consider that if the port had any active PHYs we would have
531 * or active PHYs with
532 * a lower PHY Id than this PHY. */
533 if (apc_activity != SCIC_SDS_APC_START_TIMER) {
534 apc_activity = SCIC_SDS_APC_ADD_PHY;
537 break;
541 * The current Port has no active PHYs and this PHY could be part
542 * of this Port. Since we dont know as yet setup to start the
543 * timer and see if there is a better configuration. */
544 if (iport->active_phy_mask == 0) {
545 apc_activity = SCIC_SDS_APC_START_TIMER;
547 } else if (iport->active_phy_mask != 0) {
549 * The Port has an active phy and the current Phy can not
550 * participate in this port so skip the PHY and see if
551 * there is a better configuration. */
552 apc_activity = SCIC_SDS_APC_SKIP_PHY;
558 * Check to see if the start timer operations should instead map to an
559 * add phy operation. This is caused because we have been waiting to
560 * add a phy to a port but could not becuase the automatic port
561 * configuration engine had a choice of possible ports for the phy.
562 * Since we have gone through a timeout we are going to restrict the
563 * choice to the smallest possible port. */
564 if (
565 (start_timer == false)
566 && (apc_activity == SCIC_SDS_APC_START_TIMER)
568 apc_activity = SCIC_SDS_APC_ADD_PHY;
571 switch (apc_activity) {
572 case SCIC_SDS_APC_ADD_PHY:
573 status = sci_port_add_phy(iport, iphy);
575 if (status == SCI_SUCCESS) {
576 port_agent->phy_configured_mask |= (1 << iphy->phy_index);
578 break;
580 case SCIC_SDS_APC_START_TIMER:
581 sci_apc_agent_start_timer(port_agent,
582 SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION);
583 break;
585 case SCIC_SDS_APC_SKIP_PHY:
586 default:
587 /* do nothing the PHY can not be made part of a port at this time. */
588 break;
593 * sci_apc_agent_link_up - handle apc link up events
594 * @scic: This is the controller object that receives the link up
595 * notification.
596 * @sci_port: This is the port object associated with the phy. If the is no
597 * associated port this is an NULL.
598 * @sci_phy: This is the phy object which has gone link up.
600 * This method handles the automatic port configuration for link up
601 * notifications. Is it possible to get a link down notification from a phy
602 * that has no assocoated port?
604 static void sci_apc_agent_link_up(struct isci_host *ihost,
605 struct sci_port_configuration_agent *port_agent,
606 struct isci_port *iport,
607 struct isci_phy *iphy)
609 u8 phy_index = iphy->phy_index;
611 if (!iport) {
612 /* the phy is not the part of this port */
613 port_agent->phy_ready_mask |= 1 << phy_index;
614 sci_apc_agent_start_timer(port_agent,
615 SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION);
616 } else {
617 /* the phy is already the part of the port */
618 port_agent->phy_ready_mask |= 1 << phy_index;
619 sci_port_link_up(iport, iphy);
625 * @controller: This is the controller object that receives the link down
626 * notification.
627 * @iport: This is the port object associated with the phy. If the is no
628 * associated port this is an NULL.
629 * @iphy: This is the phy object which has gone link down.
631 * This method handles the automatic port configuration link down
632 * notifications. not associated with a port there is no action taken. Is it
633 * possible to get a link down notification from a phy that has no assocoated
634 * port?
636 static void sci_apc_agent_link_down(
637 struct isci_host *ihost,
638 struct sci_port_configuration_agent *port_agent,
639 struct isci_port *iport,
640 struct isci_phy *iphy)
642 port_agent->phy_ready_mask &= ~(1 << iphy->phy_index);
644 if (!iport)
645 return;
646 if (port_agent->phy_configured_mask & (1 << iphy->phy_index)) {
647 enum sci_status status;
649 status = sci_port_remove_phy(iport, iphy);
651 if (status == SCI_SUCCESS)
652 port_agent->phy_configured_mask &= ~(1 << iphy->phy_index);
656 /* configure the phys into ports when the timer fires */
657 static void apc_agent_timeout(unsigned long data)
659 u32 index;
660 struct sci_timer *tmr = (struct sci_timer *)data;
661 struct sci_port_configuration_agent *port_agent;
662 struct isci_host *ihost;
663 unsigned long flags;
664 u16 configure_phy_mask;
666 port_agent = container_of(tmr, typeof(*port_agent), timer);
667 ihost = container_of(port_agent, typeof(*ihost), port_agent);
669 spin_lock_irqsave(&ihost->scic_lock, flags);
671 if (tmr->cancel)
672 goto done;
674 port_agent->timer_pending = false;
676 configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask;
678 if (!configure_phy_mask)
679 goto done;
681 for (index = 0; index < SCI_MAX_PHYS; index++) {
682 if ((configure_phy_mask & (1 << index)) == 0)
683 continue;
685 sci_apc_agent_configure_ports(ihost, port_agent,
686 &ihost->phys[index], false);
689 if (is_controller_start_complete(ihost))
690 sci_controller_transition_to_ready(ihost, SCI_SUCCESS);
692 done:
693 spin_unlock_irqrestore(&ihost->scic_lock, flags);
697 * ******************************************************************************
698 * Public port configuration agent routines
699 * ****************************************************************************** */
704 * This method will construct the port configuration agent for operation. This
705 * call is universal for both manual port configuration and automatic port
706 * configuration modes.
708 void sci_port_configuration_agent_construct(
709 struct sci_port_configuration_agent *port_agent)
711 u32 index;
713 port_agent->phy_configured_mask = 0x00;
714 port_agent->phy_ready_mask = 0x00;
716 port_agent->link_up_handler = NULL;
717 port_agent->link_down_handler = NULL;
719 port_agent->timer_pending = false;
721 for (index = 0; index < SCI_MAX_PORTS; index++) {
722 port_agent->phy_valid_port_range[index].min_index = 0;
723 port_agent->phy_valid_port_range[index].max_index = 0;
727 bool is_port_config_apc(struct isci_host *ihost)
729 return ihost->port_agent.link_up_handler == sci_apc_agent_link_up;
732 enum sci_status sci_port_configuration_agent_initialize(
733 struct isci_host *ihost,
734 struct sci_port_configuration_agent *port_agent)
736 enum sci_status status;
737 enum sci_port_configuration_mode mode;
739 mode = ihost->oem_parameters.controller.mode_type;
741 if (mode == SCIC_PORT_MANUAL_CONFIGURATION_MODE) {
742 status = sci_mpc_agent_validate_phy_configuration(
743 ihost, port_agent);
745 port_agent->link_up_handler = sci_mpc_agent_link_up;
746 port_agent->link_down_handler = sci_mpc_agent_link_down;
748 sci_init_timer(&port_agent->timer, mpc_agent_timeout);
749 } else {
750 status = sci_apc_agent_validate_phy_configuration(
751 ihost, port_agent);
753 port_agent->link_up_handler = sci_apc_agent_link_up;
754 port_agent->link_down_handler = sci_apc_agent_link_down;
756 sci_init_timer(&port_agent->timer, apc_agent_timeout);
759 return status;