[mirror_ubuntu-hirsute-kernel.git] / drivers / scsi / qla2xxx / qla_mid.c

/*
 *                  QLOGIC LINUX SOFTWARE
 *
 * QLogic ISP2x00 device driver for Linux 2.6.x
 * Copyright (C) 2003-2005 QLogic Corporation
 * (www.qlogic.com)
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 */
#include "qla_def.h"

#include <linux/version.h>
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/smp_lock.h>
#include <linux/list.h>

#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <linux/delay.h>

void qla2x00_vp_stop_timer(scsi_qla_host_t *);

void
qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
{
	if (vha->parent && vha->timer_active) {
		del_timer_sync(&vha->timer);
		vha->timer_active = 0;
	}
}

uint32_t
qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
{
	uint32_t vp_id;
	scsi_qla_host_t *ha = vha->parent;

	/* Find an empty slot and assign an vp_id */
	down(&ha->vport_sem);
	vp_id = find_first_zero_bit((unsigned long *)ha->vp_idx_map,
				MAX_MULTI_ID_FABRIC);
	if (vp_id > MAX_MULTI_ID_FABRIC) {
		DEBUG15(printk ("vp_id %d is bigger than MAX_MULTI_ID_FABRID\n",
		    vp_id));
		up(&ha->vport_sem);
		return vp_id;
	}

	set_bit(vp_id, (unsigned long *)ha->vp_idx_map);
	ha->num_vhosts++;
	vha->vp_idx = vp_id;
	list_add_tail(&vha->vp_list, &ha->vp_list);
	up(&ha->vport_sem);
	return vp_id;
}

void
qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
{
	uint16_t vp_id;
	scsi_qla_host_t *ha = vha->parent;

	down(&ha->vport_sem);
	vp_id = vha->vp_idx;
	ha->num_vhosts--;
	clear_bit(vp_id, (unsigned long *)ha->vp_idx_map);
	list_del(&vha->vp_list);
	up(&ha->vport_sem);
}

scsi_qla_host_t *
qla24xx_find_vhost_by_name(scsi_qla_host_t *ha, uint8_t *port_name)
{
	scsi_qla_host_t *vha;

	/* Locate matching device in database. */
	list_for_each_entry(vha, &ha->vp_list, vp_list) {
		if (!memcmp(port_name, vha->port_name, WWN_SIZE))
			return vha;
	}
	return NULL;
}

/*
 * qla2x00_mark_vp_devices_dead
 *	Updates fcport state when device goes offline.
 *
 * Input:
 *	ha = adapter block pointer.
 *	fcport = port structure pointer.
 *
 * Return:
 *	None.
 *
 * Context:
 */
static void
qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
{
	fc_port_t *fcport;
	scsi_qla_host_t *pha = to_qla_parent(vha);

	list_for_each_entry(fcport, &pha->fcports, list) {
		if (fcport->vp_idx != vha->vp_idx)
			continue;

		DEBUG15(printk("scsi(%ld): Marking port dead, "
		    "loop_id=0x%04x :%x\n",
		    vha->host_no, fcport->loop_id, fcport->vp_idx));

		atomic_set(&fcport->state, FCS_DEVICE_DEAD);
		qla2x00_mark_device_lost(vha, fcport, 0, 0);
	}
}

int
qla24xx_disable_vp(scsi_qla_host_t *vha)
{
	int ret;

	ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
	atomic_set(&vha->loop_state, LOOP_DOWN);
	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);

	/* Delete all vp's fcports from parent's list */
	qla2x00_mark_vp_devices_dead(vha);
	atomic_set(&vha->vp_state, VP_FAILED);
	vha->flags.management_server_logged_in = 0;
	if (ret == QLA_SUCCESS) {
		fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
	} else {
		fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
		return -1;
	}
	return 0;
}

int
qla24xx_enable_vp(scsi_qla_host_t *vha)
{
	int ret;
	scsi_qla_host_t *ha = vha->parent;

	/* Check if physical ha port is Up */
	if (atomic_read(&ha->loop_state) == LOOP_DOWN  ||
		atomic_read(&ha->loop_state) == LOOP_DEAD ) {
		vha->vp_err_state =  VP_ERR_PORTDWN;
		fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
		goto enable_failed;
	}

	/* Initialize the new vport unless it is a persistent port */
	down(&ha->vport_sem);
	ret = qla24xx_modify_vp_config(vha);
	up(&ha->vport_sem);

	if (ret != QLA_SUCCESS) {
		fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
		goto enable_failed;
	}

	DEBUG15(qla_printk(KERN_INFO, ha,
	    "Virtual port with id: %d - Enabled\n", vha->vp_idx));
	return 0;

enable_failed:
	DEBUG15(qla_printk(KERN_INFO, ha,
	    "Virtual port with id: %d - Disabled\n", vha->vp_idx));
	return 1;
}

static void
qla24xx_configure_vp(scsi_qla_host_t *vha)
{
	struct fc_vport *fc_vport;
	int ret;

	fc_vport = vha->fc_vport;

	DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
	    vha->host_no, __func__));
	ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
	if (ret != QLA_SUCCESS) {
		DEBUG15(qla_printk(KERN_ERR, vha, "Failed to enable receiving"
		    " of RSCN requests: 0x%x\n", ret));
		return;
	} else {
		/* Corresponds to SCR enabled */
		clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
	}

	vha->flags.online = 1;
	if (qla24xx_configure_vhba(vha))
		return;

	atomic_set(&vha->vp_state, VP_ACTIVE);
	fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
}

void
qla2x00_alert_all_vps(scsi_qla_host_t *ha, uint16_t *mb)
{
	int i, vp_idx_matched;
	scsi_qla_host_t *vha;

	if (ha->parent)
		return;

	i = find_next_bit((unsigned long *)ha->vp_idx_map,
	    MAX_MULTI_ID_FABRIC + 1, 1);
	for (;i <= MAX_MULTI_ID_FABRIC;
	    i = find_next_bit((unsigned long *)ha->vp_idx_map,
	    MAX_MULTI_ID_FABRIC + 1, i + 1)) {
		vp_idx_matched = 0;

		list_for_each_entry(vha, &ha->vp_list, vp_list) {
			if (i == vha->vp_idx) {
				vp_idx_matched = 1;
				break;
			}
		}

		if (vp_idx_matched) {
			switch (mb[0]) {
			case MBA_LIP_OCCURRED:
			case MBA_LOOP_UP:
			case MBA_LOOP_DOWN:
			case MBA_LIP_RESET:
			case MBA_POINT_TO_POINT:
			case MBA_CHG_IN_CONNECTION:
			case MBA_PORT_UPDATE:
			case MBA_RSCN_UPDATE:
				DEBUG15(printk("scsi(%ld)%s: Async_event for"
				    " VP[%d], mb = 0x%x, vha=%p\n",
				    vha->host_no, __func__,i, *mb, vha));
				qla2x00_async_event(vha, mb);
				break;
			}
		}
	}
}

void
qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
{
	/*
	 * Physical port will do most of the abort and recovery work. We can
	 * just treat it as a loop down
	 */
	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
		atomic_set(&vha->loop_state, LOOP_DOWN);
		qla2x00_mark_all_devices_lost(vha, 0);
	} else {
		if (!atomic_read(&vha->loop_down_timer))
			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	}

	DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
	    vha->host_no, vha->vp_idx));
	qla24xx_enable_vp(vha);
}

int
qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
{
	if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
		/* VP acquired. complete port configuration */
		qla24xx_configure_vp(vha);
		return 0;
	}

	if (test_and_clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
		qla2x00_vp_abort_isp(vha);

	if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
	    (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
		clear_bit(RESET_ACTIVE, &vha->dpc_flags);
	}

	if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
		if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
			qla2x00_loop_resync(vha);
			clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
		}
	}

	return 0;
}

void
qla2x00_do_dpc_all_vps(scsi_qla_host_t *ha)
{
	int ret;
	int i, vp_idx_matched;
	scsi_qla_host_t *vha;

	if (ha->parent)
		return;
	if (list_empty(&ha->vp_list))
		return;

	clear_bit(VP_DPC_NEEDED, &ha->dpc_flags);

	i = find_next_bit((unsigned long *)ha->vp_idx_map,
	    MAX_MULTI_ID_FABRIC + 1, 1);
	for (;i <= MAX_MULTI_ID_FABRIC;
	    i = find_next_bit((unsigned long *)ha->vp_idx_map,
	    MAX_MULTI_ID_FABRIC + 1, i + 1)) {
		vp_idx_matched = 0;

		list_for_each_entry(vha, &ha->vp_list, vp_list) {
			if (i == vha->vp_idx) {
				vp_idx_matched = 1;
				break;
			}
		}

		if (vp_idx_matched)
			ret = qla2x00_do_dpc_vp(vha);
	}
}

int
qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
{
	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
	scsi_qla_host_t *vha;
	uint8_t port_name[WWN_SIZE];

	if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
		return VPCERR_UNSUPPORTED;

	/* Check up the F/W and H/W support NPIV */
	if (!ha->flags.npiv_supported)
		return VPCERR_UNSUPPORTED;

	/* Check up whether npiv supported switch presented */
	if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
		return VPCERR_NO_FABRIC_SUPP;

	/* Check up unique WWPN */
	u64_to_wwn(fc_vport->port_name, port_name);
	vha = qla24xx_find_vhost_by_name(ha, port_name);
	if (vha)
		return VPCERR_BAD_WWN;

	/* Check up max-npiv-supports */
	if (ha->num_vhosts > ha->max_npiv_vports) {
		DEBUG15(printk("scsi(%ld): num_vhosts %d is bigger than "
		    "max_npv_vports %d.\n", ha->host_no,
		    (uint16_t) ha->num_vhosts, (int) ha->max_npiv_vports));
		return VPCERR_UNSUPPORTED;
	}
	return 0;
}

scsi_qla_host_t *
qla24xx_create_vhost(struct fc_vport *fc_vport)
{
	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
	scsi_qla_host_t *vha;
	struct Scsi_Host *host;

	host = scsi_host_alloc(&qla24xx_driver_template,
	    sizeof(scsi_qla_host_t));
	if (!host) {
		printk(KERN_WARNING
		    "qla2xxx: scsi_host_alloc() failed for vport\n");
		return(NULL);
	}

	vha = shost_priv(host);

	/* clone the parent hba */
	memcpy(vha, ha, sizeof (scsi_qla_host_t));

	fc_vport->dd_data = vha;

	vha->node_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL);
	if (!vha->node_name)
		goto create_vhost_failed_1;

	vha->port_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL);
	if (!vha->port_name)
		goto create_vhost_failed_2;

	/* New host info */
	u64_to_wwn(fc_vport->node_name, vha->node_name);
	u64_to_wwn(fc_vport->port_name, vha->port_name);

	vha->host = host;
	vha->host_no = host->host_no;
	vha->parent = ha;
	vha->fc_vport = fc_vport;
	vha->device_flags = 0;
	vha->instance = num_hosts;
	vha->vp_idx = qla24xx_allocate_vp_id(vha);
	if (vha->vp_idx > ha->max_npiv_vports) {
		DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
			vha->host_no));
		goto create_vhost_failed_3;
	}
	vha->mgmt_svr_loop_id = 10 + vha->vp_idx;

	init_MUTEX(&vha->mbx_cmd_sem);
	init_MUTEX_LOCKED(&vha->mbx_intr_sem);

	INIT_LIST_HEAD(&vha->list);
	INIT_LIST_HEAD(&vha->fcports);
	INIT_LIST_HEAD(&vha->vp_fcports);

	vha->dpc_flags = 0L;
	set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
	set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);

	/*
	 * To fix the issue of processing a parent's RSCN for the vport before
	 * its SCR is complete.
	 */
	set_bit(VP_SCR_NEEDED, &vha->vp_flags);
	atomic_set(&vha->loop_state, LOOP_DOWN);
	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);

	qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);

	host->can_queue = vha->request_q_length + 128;
	host->this_id = 255;
	host->cmd_per_lun = 3;
	host->max_cmd_len = MAX_CMDSZ;
	host->max_channel = MAX_BUSES - 1;
	host->max_lun = MAX_LUNS;
	host->unique_id = vha->instance;
	host->max_id = MAX_TARGETS_2200;
	host->transportt = qla2xxx_transport_vport_template;

	DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
	    vha->host_no, vha));

	vha->flags.init_done = 1;
	num_hosts++;

	down(&ha->vport_sem);
	set_bit(vha->vp_idx, (unsigned long *)ha->vp_idx_map);
	ha->cur_vport_count++;
	up(&ha->vport_sem);

	return vha;

create_vhost_failed_3:
	kfree(vha->port_name);

create_vhost_failed_2:
	kfree(vha->node_name);

create_vhost_failed_1:
	return NULL;
}
Commit	Line	Data
2c3dfe3f SJ	1	/*
	2	* QLOGIC LINUX SOFTWARE
	3	*
	4	* QLogic ISP2x00 device driver for Linux 2.6.x
	5	* Copyright (C) 2003-2005 QLogic Corporation
	6	* (www.qlogic.com)
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2, or (at your option) any
	11	* later version.
	12	*
	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.
	17	*
	18	*/
	19	#include "qla_def.h"
	20
	21	#include <linux/version.h>
	22	#include <linux/moduleparam.h>
	23	#include <linux/vmalloc.h>
	24	#include <linux/smp_lock.h>
	25	#include <linux/list.h>
	26
	27	#include <scsi/scsi_tcq.h>
	28	#include <scsi/scsicam.h>
	29	#include <linux/delay.h>
	30
	31	void qla2x00_vp_stop_timer(scsi_qla_host_t *);
	32
	33	void
	34	qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
	35	{
	36	if (vha->parent && vha->timer_active) {
	37	del_timer_sync(&vha->timer);
	38	vha->timer_active = 0;
	39	}
	40	}
	41
	42	uint32_t
	43	qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
	44	{
	45	uint32_t vp_id;
	46	scsi_qla_host_t *ha = vha->parent;
	47
	48	/* Find an empty slot and assign an vp_id */
	49	down(&ha->vport_sem);
	50	vp_id = find_first_zero_bit((unsigned long *)ha->vp_idx_map,
	51	MAX_MULTI_ID_FABRIC);
	52	if (vp_id > MAX_MULTI_ID_FABRIC) {
	53	DEBUG15(printk ("vp_id %d is bigger than MAX_MULTI_ID_FABRID\n",
	54	vp_id));
	55	up(&ha->vport_sem);
	56	return vp_id;
	57	}
	58
	59	set_bit(vp_id, (unsigned long *)ha->vp_idx_map);
	60	ha->num_vhosts++;
	61	vha->vp_idx = vp_id;
	62	list_add_tail(&vha->vp_list, &ha->vp_list);
	63	up(&ha->vport_sem);
	64	return vp_id;
65	}
66
67	void
68	qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
69	{
70	uint16_t vp_id;
71	scsi_qla_host_t *ha = vha->parent;
72
73	down(&ha->vport_sem);
74	vp_id = vha->vp_idx;
75	ha->num_vhosts--;
76	clear_bit(vp_id, (unsigned long *)ha->vp_idx_map);
77	list_del(&vha->vp_list);
78	up(&ha->vport_sem);
79	}
80
81	scsi_qla_host_t *
82	qla24xx_find_vhost_by_name(scsi_qla_host_t ha, uint8_t port_name)
83	{
84	scsi_qla_host_t *vha;
85
86	/* Locate matching device in database. */
87	list_for_each_entry(vha, &ha->vp_list, vp_list) {
88	if (!memcmp(port_name, vha->port_name, WWN_SIZE))
89	return vha;
90	}
91	return NULL;
92	}
93
94	/*
95	* qla2x00_mark_vp_devices_dead
96	* Updates fcport state when device goes offline.
97	*
98	* Input:
99	* ha = adapter block pointer.
100	* fcport = port structure pointer.
101	*
102	* Return:
103	* None.
104	*
105	* Context:
106	*/
26ff776d	107	static void
2c3dfe3f SJ	108	qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
	109	{
	110	fc_port_t *fcport;
	111	scsi_qla_host_t *pha = to_qla_parent(vha);
	112
	113	list_for_each_entry(fcport, &pha->fcports, list) {
	114	if (fcport->vp_idx != vha->vp_idx)
	115	continue;
	116
	117	DEBUG15(printk("scsi(%ld): Marking port dead, "
	118	"loop_id=0x%04x :%x\n",
	119	vha->host_no, fcport->loop_id, fcport->vp_idx));
	120
	121	atomic_set(&fcport->state, FCS_DEVICE_DEAD);
	122	qla2x00_mark_device_lost(vha, fcport, 0, 0);
	123	}
	124	}
	125
	126	int
	127	qla24xx_disable_vp(scsi_qla_host_t *vha)
	128	{
	129	int ret;
	130
	131	ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
	132	atomic_set(&vha->loop_state, LOOP_DOWN);
	133	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	134
	135	/* Delete all vp's fcports from parent's list */
	136	qla2x00_mark_vp_devices_dead(vha);
	137	atomic_set(&vha->vp_state, VP_FAILED);
	138	vha->flags.management_server_logged_in = 0;
	139	if (ret == QLA_SUCCESS) {
	140	fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
	141	} else {
	142	fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
	143	return -1;
	144	}
	145	return 0;
	146	}
	147
	148	int
	149	qla24xx_enable_vp(scsi_qla_host_t *vha)
	150	{
	151	int ret;
	152	scsi_qla_host_t *ha = vha->parent;
	153
	154	/* Check if physical ha port is Up */
	155	if (atomic_read(&ha->loop_state) == LOOP_DOWN \|\|
	156	atomic_read(&ha->loop_state) == LOOP_DEAD ) {
	157	vha->vp_err_state = VP_ERR_PORTDWN;
	158	fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
	159	goto enable_failed;
	160	}
	161
	162	/* Initialize the new vport unless it is a persistent port */
	163	down(&ha->vport_sem);
	164	ret = qla24xx_modify_vp_config(vha);
	165	up(&ha->vport_sem);
	166
	167	if (ret != QLA_SUCCESS) {
	168	fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
	169	goto enable_failed;
	170	}
	171
172	DEBUG15(qla_printk(KERN_INFO, ha,
173	"Virtual port with id: %d - Enabled\n", vha->vp_idx));
174	return 0;
175
176	enable_failed:
177	DEBUG15(qla_printk(KERN_INFO, ha,
178	"Virtual port with id: %d - Disabled\n", vha->vp_idx));
179	return 1;
180	}
181
26ff776d	182	static void
2c3dfe3f SJ	183	qla24xx_configure_vp(scsi_qla_host_t *vha)
	184	{
	185	struct fc_vport *fc_vport;
	186	int ret;
	187
	188	fc_vport = vha->fc_vport;
	189
	190	DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
	191	vha->host_no, __func__));
	192	ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
	193	if (ret != QLA_SUCCESS) {
	194	DEBUG15(qla_printk(KERN_ERR, vha, "Failed to enable receiving"
	195	" of RSCN requests: 0x%x\n", ret));
	196	return;
	197	} else {
	198	/* Corresponds to SCR enabled */
	199	clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
	200	}
	201
	202	vha->flags.online = 1;
	203	if (qla24xx_configure_vhba(vha))
	204	return;
	205
	206	atomic_set(&vha->vp_state, VP_ACTIVE);
	207	fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
	208	}
	209
	210	void
	211	qla2x00_alert_all_vps(scsi_qla_host_t ha, uint16_t mb)
	212	{
	213	int i, vp_idx_matched;
	214	scsi_qla_host_t *vha;
	215
	216	if (ha->parent)
	217	return;
	218
	219	i = find_next_bit((unsigned long *)ha->vp_idx_map,
	220	MAX_MULTI_ID_FABRIC + 1, 1);
	221	for (;i <= MAX_MULTI_ID_FABRIC;
	222	i = find_next_bit((unsigned long *)ha->vp_idx_map,
	223	MAX_MULTI_ID_FABRIC + 1, i + 1)) {
	224	vp_idx_matched = 0;
	225
	226	list_for_each_entry(vha, &ha->vp_list, vp_list) {
	227	if (i == vha->vp_idx) {
	228	vp_idx_matched = 1;
	229	break;
	230	}
	231	}
	232
	233	if (vp_idx_matched) {
	234	switch (mb[0]) {
	235	case MBA_LIP_OCCURRED:
	236	case MBA_LOOP_UP:
	237	case MBA_LOOP_DOWN:
	238	case MBA_LIP_RESET:
	239	case MBA_POINT_TO_POINT:
	240	case MBA_CHG_IN_CONNECTION:
	241	case MBA_PORT_UPDATE:
	242	case MBA_RSCN_UPDATE:
	243	DEBUG15(printk("scsi(%ld)%s: Async_event for"
	244	" VP[%d], mb = 0x%x, vha=%p\n",
	245	vha->host_no, __func__,i, *mb, vha));
	246	qla2x00_async_event(vha, mb);
247	break;
248	}
249	}
250	}
251	}
252
253	void
254	qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
255	{
256	/*
257	* Physical port will do most of the abort and recovery work. We can
258	* just treat it as a loop down
259	*/
260	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
261	atomic_set(&vha->loop_state, LOOP_DOWN);
262	qla2x00_mark_all_devices_lost(vha, 0);
263	} else {
264	if (!atomic_read(&vha->loop_down_timer))
265	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
266	}
267
268	DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
269	vha->host_no, vha->vp_idx));
270	qla24xx_enable_vp(vha);
271	}
272
273	int
274	qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
275	{
276	if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
277	/* VP acquired. complete port configuration */
278	qla24xx_configure_vp(vha);
279	return 0;
280	}
281
282	if (test_and_clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
283	qla2x00_vp_abort_isp(vha);
284
285	if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
286	(!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
287	clear_bit(RESET_ACTIVE, &vha->dpc_flags);
288	}
289
290	if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
291	if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
292	qla2x00_loop_resync(vha);
293	clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
294	}
295	}
296
297	return 0;
298	}
299
300	void
301	qla2x00_do_dpc_all_vps(scsi_qla_host_t *ha)
302	{
303	int ret;
304	int i, vp_idx_matched;
305	scsi_qla_host_t *vha;
306
307	if (ha->parent)
308	return;
309	if (list_empty(&ha->vp_list))
310	return;
311
312	clear_bit(VP_DPC_NEEDED, &ha->dpc_flags);
313
314	i = find_next_bit((unsigned long *)ha->vp_idx_map,
315	MAX_MULTI_ID_FABRIC + 1, 1);
316	for (;i <= MAX_MULTI_ID_FABRIC;
317	i = find_next_bit((unsigned long *)ha->vp_idx_map,
318	MAX_MULTI_ID_FABRIC + 1, i + 1)) {
319	vp_idx_matched = 0;
320
321	list_for_each_entry(vha, &ha->vp_list, vp_list) {
322	if (i == vha->vp_idx) {
323	vp_idx_matched = 1;
324	break;
325	}
326	}
327
328	if (vp_idx_matched)
329	ret = qla2x00_do_dpc_vp(vha);
330	}
331	}
332
333	int
334	qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
335	{
f363b943	336	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
2c3dfe3f SJ	337	scsi_qla_host_t *vha;
	338	uint8_t port_name[WWN_SIZE];
	339
	340	if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
	341	return VPCERR_UNSUPPORTED;
	342
	343	/* Check up the F/W and H/W support NPIV */
	344	if (!ha->flags.npiv_supported)
	345	return VPCERR_UNSUPPORTED;
	346
	347	/* Check up whether npiv supported switch presented */
	348	if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
	349	return VPCERR_NO_FABRIC_SUPP;
	350
	351	/* Check up unique WWPN */
	352	u64_to_wwn(fc_vport->port_name, port_name);
	353	vha = qla24xx_find_vhost_by_name(ha, port_name);
	354	if (vha)
	355	return VPCERR_BAD_WWN;
	356
	357	/* Check up max-npiv-supports */
	358	if (ha->num_vhosts > ha->max_npiv_vports) {
	359	DEBUG15(printk("scsi(%ld): num_vhosts %d is bigger than "
	360	"max_npv_vports %d.\n", ha->host_no,
	361	(uint16_t) ha->num_vhosts, (int) ha->max_npiv_vports));
	362	return VPCERR_UNSUPPORTED;
	363	}
	364	return 0;
	365	}
	366
	367	scsi_qla_host_t *
	368	qla24xx_create_vhost(struct fc_vport *fc_vport)
	369	{
f363b943	370	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
2c3dfe3f SJ	371	scsi_qla_host_t *vha;
	372	struct Scsi_Host *host;
	373
	374	host = scsi_host_alloc(&qla24xx_driver_template,
	375	sizeof(scsi_qla_host_t));
	376	if (!host) {
	377	printk(KERN_WARNING
	378	"qla2xxx: scsi_host_alloc() failed for vport\n");
	379	return(NULL);
	380	}
	381
f363b943	382	vha = shost_priv(host);
2c3dfe3f SJ	383
	384	/* clone the parent hba */
	385	memcpy(vha, ha, sizeof (scsi_qla_host_t));
	386
	387	fc_vport->dd_data = vha;
	388
	389	vha->node_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL);
	390	if (!vha->node_name)
	391	goto create_vhost_failed_1;
	392
	393	vha->port_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL);
	394	if (!vha->port_name)
	395	goto create_vhost_failed_2;
	396
	397	/* New host info */
	398	u64_to_wwn(fc_vport->node_name, vha->node_name);
	399	u64_to_wwn(fc_vport->port_name, vha->port_name);
	400
	401	vha->host = host;
	402	vha->host_no = host->host_no;
	403	vha->parent = ha;
	404	vha->fc_vport = fc_vport;
	405	vha->device_flags = 0;
	406	vha->instance = num_hosts;
	407	vha->vp_idx = qla24xx_allocate_vp_id(vha);
	408	if (vha->vp_idx > ha->max_npiv_vports) {
	409	DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
	410	vha->host_no));
	411	goto create_vhost_failed_3;
	412	}
	413	vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
	414
	415	init_MUTEX(&vha->mbx_cmd_sem);
	416	init_MUTEX_LOCKED(&vha->mbx_intr_sem);
	417
	418	INIT_LIST_HEAD(&vha->list);
	419	INIT_LIST_HEAD(&vha->fcports);
	420	INIT_LIST_HEAD(&vha->vp_fcports);
	421
	422	vha->dpc_flags = 0L;
	423	set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
	424	set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
	425
	426	/*
	427	* To fix the issue of processing a parent's RSCN for the vport before
	428	* its SCR is complete.
	429	*/
	430	set_bit(VP_SCR_NEEDED, &vha->vp_flags);
	431	atomic_set(&vha->loop_state, LOOP_DOWN);
	432	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	433
	434	qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
	435
	436	host->can_queue = vha->request_q_length + 128;
	437	host->this_id = 255;
	438	host->cmd_per_lun = 3;
	439	host->max_cmd_len = MAX_CMDSZ;
	440	host->max_channel = MAX_BUSES - 1;
	441	host->max_lun = MAX_LUNS;
	442	host->unique_id = vha->instance;
	443	host->max_id = MAX_TARGETS_2200;
	444	host->transportt = qla2xxx_transport_vport_template;
	445
	446	DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
447	vha->host_no, vha));
448
449	vha->flags.init_done = 1;
450	num_hosts++;
451
452	down(&ha->vport_sem);
453	set_bit(vha->vp_idx, (unsigned long *)ha->vp_idx_map);
454	ha->cur_vport_count++;
455	up(&ha->vport_sem);
456
457	return vha;
458
459	create_vhost_failed_3:
460	kfree(vha->port_name);
461
462	create_vhost_failed_2:
463	kfree(vha->node_name);
464
465	create_vhost_failed_1:
466	return NULL;
467	}