[net-next-2.6.git] / drivers / scsi / qla2xxx / qla_mid.c

/*
 * QLogic Fibre Channel HBA Driver
 * Copyright (c)  2003-2008 QLogic Corporation
 *
 * See LICENSE.qla2xxx for copyright and licensing 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 *vha)
{
	if (vha->parent && vha->timer_active) {
		del_timer_sync(&vha->timer);
		vha->timer_active = 0;
	}
}

static 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 */
	mutex_lock(&ha->vport_lock);
	vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
	if (vp_id > ha->max_npiv_vports) {
		DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
		    vp_id, ha->max_npiv_vports));
		mutex_unlock(&ha->vport_lock);
		return vp_id;
	}

	set_bit(vp_id, ha->vp_idx_map);
	ha->num_vhosts++;
	ha->cur_vport_count++;
	vha->vp_idx = vp_id;
	list_add_tail(&vha->vp_list, &ha->vp_list);
	mutex_unlock(&ha->vport_lock);
	return vp_id;
}

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

	mutex_lock(&ha->vport_lock);
	vp_id = vha->vp_idx;
	ha->num_vhosts--;
	ha->cur_vport_count--;
	clear_bit(vp_id, ha->vp_idx_map);
	list_del(&vha->vp_list);
	mutex_unlock(&ha->vport_lock);
}

static 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));

		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 */
	mutex_lock(&ha->vport_lock);
	ret = qla24xx_modify_vp_config(vha);
	mutex_unlock(&ha->vport_lock);

	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;

	for_each_mapped_vp_idx(ha, i) {
		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);
}

static int
qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
{
	scsi_qla_host_t *ha = vha->parent;

	if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
		/* VP acquired. complete port configuration */
		if (atomic_read(&ha->loop_state) == LOOP_READY) {
			qla24xx_configure_vp(vha);
		} else {
			set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
			set_bit(VP_DPC_NEEDED, &ha->dpc_flags);
		}

		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);

	for_each_mapped_vp_idx(ha, i) {
		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);
	if (!memcmp(port_name, ha->port_name, WWN_SIZE))
		return VPCERR_BAD_WWN;
	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 %ud is bigger than "
		    "max_npv_vports %ud.\n", ha->host_no,
		    ha->num_vhosts, 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->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_completion(&vha->mbx_cmd_comp);
	complete(&vha->mbx_cmd_comp);
	init_completion(&vha->mbx_intr_comp);

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

	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 = host->host_no;
	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;

	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	1	/*
01e58d8e AV	2	* QLogic Fibre Channel HBA Driver
01e58d8e AV	3	* Copyright (c) 2003-2008 QLogic Corporation
2c3dfe3f	4	*
01e58d8e	5	* See LICENSE.qla2xxx for copyright and licensing details.
2c3dfe3f SJ	6	*/
	7	#include "qla_def.h"
	8
	9	#include <linux/version.h>
	10	#include <linux/moduleparam.h>
	11	#include <linux/vmalloc.h>
	12	#include <linux/smp_lock.h>
	13	#include <linux/list.h>
	14
	15	#include <scsi/scsi_tcq.h>
	16	#include <scsi/scsicam.h>
	17	#include <linux/delay.h>
	18
2c3dfe3f SJ	19	void
	20	qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
	21	{
	22	if (vha->parent && vha->timer_active) {
	23	del_timer_sync(&vha->timer);
	24	vha->timer_active = 0;
	25	}
	26	}
	27
a824ebb3	28	static uint32_t
2c3dfe3f SJ	29	qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
	30	{
	31	uint32_t vp_id;
	32	scsi_qla_host_t *ha = vha->parent;
	33
	34	/* Find an empty slot and assign an vp_id */
6c2f527c	35	mutex_lock(&ha->vport_lock);
eb66dc60 AV	36	vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
	37	if (vp_id > ha->max_npiv_vports) {
	38	DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
	39	vp_id, ha->max_npiv_vports));
6c2f527c	40	mutex_unlock(&ha->vport_lock);
2c3dfe3f SJ	41	return vp_id;
	42	}
	43
eb66dc60	44	set_bit(vp_id, ha->vp_idx_map);
2c3dfe3f	45	ha->num_vhosts++;
711c1d91	46	ha->cur_vport_count++;
2c3dfe3f SJ	47	vha->vp_idx = vp_id;
2c3dfe3f SJ	48	list_add_tail(&vha->vp_list, &ha->vp_list);
6c2f527c	49	mutex_unlock(&ha->vport_lock);
2c3dfe3f SJ	50	return vp_id;
	51	}
	52
	53	void
	54	qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
	55	{
	56	uint16_t vp_id;
	57	scsi_qla_host_t *ha = vha->parent;
	58
6c2f527c	59	mutex_lock(&ha->vport_lock);
2c3dfe3f SJ	60	vp_id = vha->vp_idx;
2c3dfe3f SJ	61	ha->num_vhosts--;
711c1d91	62	ha->cur_vport_count--;
eb66dc60	63	clear_bit(vp_id, ha->vp_idx_map);
2c3dfe3f	64	list_del(&vha->vp_list);
6c2f527c	65	mutex_unlock(&ha->vport_lock);
2c3dfe3f SJ	66	}
2c3dfe3f SJ	67
a824ebb3	68	static scsi_qla_host_t *
2c3dfe3f SJ	69	qla24xx_find_vhost_by_name(scsi_qla_host_t ha, uint8_t port_name)
	70	{
	71	scsi_qla_host_t *vha;
	72
	73	/* Locate matching device in database. */
	74	list_for_each_entry(vha, &ha->vp_list, vp_list) {
	75	if (!memcmp(port_name, vha->port_name, WWN_SIZE))
	76	return vha;
	77	}
	78	return NULL;
	79	}
	80
	81	/*
	82	* qla2x00_mark_vp_devices_dead
	83	* Updates fcport state when device goes offline.
	84	*
	85	* Input:
	86	* ha = adapter block pointer.
	87	* fcport = port structure pointer.
	88	*
	89	* Return:
	90	* None.
	91	*
	92	* Context:
	93	*/
26ff776d	94	static void
2c3dfe3f SJ	95	qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
	96	{
	97	fc_port_t *fcport;
	98	scsi_qla_host_t *pha = to_qla_parent(vha);
	99
	100	list_for_each_entry(fcport, &pha->fcports, list) {
	101	if (fcport->vp_idx != vha->vp_idx)
	102	continue;
	103
	104	DEBUG15(printk("scsi(%ld): Marking port dead, "
	105	"loop_id=0x%04x :%x\n",
	106	vha->host_no, fcport->loop_id, fcport->vp_idx));
	107
2c3dfe3f SJ	108	qla2x00_mark_device_lost(vha, fcport, 0, 0);
	109	}
	110	}
	111
	112	int
	113	qla24xx_disable_vp(scsi_qla_host_t *vha)
	114	{
	115	int ret;
	116
	117	ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
	118	atomic_set(&vha->loop_state, LOOP_DOWN);
	119	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	120
	121	/* Delete all vp's fcports from parent's list */
	122	qla2x00_mark_vp_devices_dead(vha);
	123	atomic_set(&vha->vp_state, VP_FAILED);
	124	vha->flags.management_server_logged_in = 0;
	125	if (ret == QLA_SUCCESS) {
	126	fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
	127	} else {
	128	fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
	129	return -1;
	130	}
	131	return 0;
	132	}
	133
	134	int
	135	qla24xx_enable_vp(scsi_qla_host_t *vha)
	136	{
	137	int ret;
	138	scsi_qla_host_t *ha = vha->parent;
	139
	140	/* Check if physical ha port is Up */
	141	if (atomic_read(&ha->loop_state) == LOOP_DOWN \|\|
	142	atomic_read(&ha->loop_state) == LOOP_DEAD ) {
	143	vha->vp_err_state = VP_ERR_PORTDWN;
	144	fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
	145	goto enable_failed;
	146	}
	147
	148	/* Initialize the new vport unless it is a persistent port */
6c2f527c	149	mutex_lock(&ha->vport_lock);
2c3dfe3f	150	ret = qla24xx_modify_vp_config(vha);
6c2f527c	151	mutex_unlock(&ha->vport_lock);
2c3dfe3f SJ	152
	153	if (ret != QLA_SUCCESS) {
	154	fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
	155	goto enable_failed;
	156	}
	157
	158	DEBUG15(qla_printk(KERN_INFO, ha,
	159	"Virtual port with id: %d - Enabled\n", vha->vp_idx));
	160	return 0;
	161
	162	enable_failed:
	163	DEBUG15(qla_printk(KERN_INFO, ha,
	164	"Virtual port with id: %d - Disabled\n", vha->vp_idx));
	165	return 1;
	166	}
	167
26ff776d	168	static void
2c3dfe3f SJ	169	qla24xx_configure_vp(scsi_qla_host_t *vha)
	170	{
	171	struct fc_vport *fc_vport;
	172	int ret;
	173
	174	fc_vport = vha->fc_vport;
	175
	176	DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
	177	vha->host_no, __func__));
	178	ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
	179	if (ret != QLA_SUCCESS) {
	180	DEBUG15(qla_printk(KERN_ERR, vha, "Failed to enable receiving"
	181	" of RSCN requests: 0x%x\n", ret));
	182	return;
	183	} else {
	184	/* Corresponds to SCR enabled */
	185	clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
	186	}
	187
	188	vha->flags.online = 1;
	189	if (qla24xx_configure_vhba(vha))
	190	return;
	191
	192	atomic_set(&vha->vp_state, VP_ACTIVE);
	193	fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
	194	}
	195
	196	void
	197	qla2x00_alert_all_vps(scsi_qla_host_t ha, uint16_t mb)
	198	{
	199	int i, vp_idx_matched;
	200	scsi_qla_host_t *vha;
	201
	202	if (ha->parent)
	203	return;
	204
eb66dc60	205	for_each_mapped_vp_idx(ha, i) {
2c3dfe3f SJ	206	vp_idx_matched = 0;
	207
	208	list_for_each_entry(vha, &ha->vp_list, vp_list) {
	209	if (i == vha->vp_idx) {
	210	vp_idx_matched = 1;
	211	break;
	212	}
	213	}
	214
	215	if (vp_idx_matched) {
	216	switch (mb[0]) {
	217	case MBA_LIP_OCCURRED:
	218	case MBA_LOOP_UP:
	219	case MBA_LOOP_DOWN:
	220	case MBA_LIP_RESET:
	221	case MBA_POINT_TO_POINT:
	222	case MBA_CHG_IN_CONNECTION:
	223	case MBA_PORT_UPDATE:
	224	case MBA_RSCN_UPDATE:
	225	DEBUG15(printk("scsi(%ld)%s: Async_event for"
	226	" VP[%d], mb = 0x%x, vha=%p\n",
	227	vha->host_no, __func__,i, *mb, vha));
	228	qla2x00_async_event(vha, mb);
	229	break;
	230	}
	231	}
	232	}
	233	}
	234
	235	void
	236	qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
	237	{
	238	/*
	239	* Physical port will do most of the abort and recovery work. We can
	240	* just treat it as a loop down
	241	*/
	242	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
	243	atomic_set(&vha->loop_state, LOOP_DOWN);
	244	qla2x00_mark_all_devices_lost(vha, 0);
	245	} else {
	246	if (!atomic_read(&vha->loop_down_timer))
	247	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	248	}
	249
	250	DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
	251	vha->host_no, vha->vp_idx));
	252	qla24xx_enable_vp(vha);
	253	}
	254
a824ebb3	255	static int
2c3dfe3f SJ	256	qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
2c3dfe3f SJ	257	{
221726d4 SJ	258	scsi_qla_host_t *ha = vha->parent;
221726d4 SJ	259
2c3dfe3f SJ	260	if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
2c3dfe3f SJ	261	/* VP acquired. complete port configuration */
221726d4 SJ	262	if (atomic_read(&ha->loop_state) == LOOP_READY) {
	263	qla24xx_configure_vp(vha);
	264	} else {
	265	set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
	266	set_bit(VP_DPC_NEEDED, &ha->dpc_flags);
	267	}
	268
2c3dfe3f SJ	269	return 0;
	270	}
	271
	272	if (test_and_clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
	273	qla2x00_vp_abort_isp(vha);
	274
	275	if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
	276	(!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
	277	clear_bit(RESET_ACTIVE, &vha->dpc_flags);
	278	}
	279
	280	if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
	281	if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
	282	qla2x00_loop_resync(vha);
	283	clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
	284	}
	285	}
	286
	287	return 0;
	288	}
	289
	290	void
	291	qla2x00_do_dpc_all_vps(scsi_qla_host_t *ha)
	292	{
	293	int ret;
	294	int i, vp_idx_matched;
	295	scsi_qla_host_t *vha;
	296
	297	if (ha->parent)
	298	return;
	299	if (list_empty(&ha->vp_list))
	300	return;
	301
	302	clear_bit(VP_DPC_NEEDED, &ha->dpc_flags);
	303
eb66dc60	304	for_each_mapped_vp_idx(ha, i) {
2c3dfe3f SJ	305	vp_idx_matched = 0;
	306
	307	list_for_each_entry(vha, &ha->vp_list, vp_list) {
	308	if (i == vha->vp_idx) {
	309	vp_idx_matched = 1;
	310	break;
	311	}
	312	}
	313
	314	if (vp_idx_matched)
	315	ret = qla2x00_do_dpc_vp(vha);
	316	}
	317	}
	318
	319	int
	320	qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
	321	{
f363b943	322	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
2c3dfe3f SJ	323	scsi_qla_host_t *vha;
	324	uint8_t port_name[WWN_SIZE];
	325
	326	if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
	327	return VPCERR_UNSUPPORTED;
	328
	329	/* Check up the F/W and H/W support NPIV */
	330	if (!ha->flags.npiv_supported)
	331	return VPCERR_UNSUPPORTED;
	332
	333	/* Check up whether npiv supported switch presented */
	334	if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
	335	return VPCERR_NO_FABRIC_SUPP;
	336
	337	/* Check up unique WWPN */
	338	u64_to_wwn(fc_vport->port_name, port_name);
50db6b13 SJ	339	if (!memcmp(port_name, ha->port_name, WWN_SIZE))
50db6b13 SJ	340	return VPCERR_BAD_WWN;
2c3dfe3f SJ	341	vha = qla24xx_find_vhost_by_name(ha, port_name);
	342	if (vha)
	343	return VPCERR_BAD_WWN;
	344
	345	/* Check up max-npiv-supports */
	346	if (ha->num_vhosts > ha->max_npiv_vports) {
eb66dc60 AV	347	DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
	348	"max_npv_vports %ud.\n", ha->host_no,
	349	ha->num_vhosts, ha->max_npiv_vports));
2c3dfe3f SJ	350	return VPCERR_UNSUPPORTED;
	351	}
	352	return 0;
	353	}
	354
	355	scsi_qla_host_t *
	356	qla24xx_create_vhost(struct fc_vport *fc_vport)
	357	{
f363b943	358	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
2c3dfe3f SJ	359	scsi_qla_host_t *vha;
	360	struct Scsi_Host *host;
	361
	362	host = scsi_host_alloc(&qla24xx_driver_template,
	363	sizeof(scsi_qla_host_t));
	364	if (!host) {
	365	printk(KERN_WARNING
	366	"qla2xxx: scsi_host_alloc() failed for vport\n");
	367	return(NULL);
	368	}
	369
f363b943	370	vha = shost_priv(host);
2c3dfe3f SJ	371
	372	/* clone the parent hba */
	373	memcpy(vha, ha, sizeof (scsi_qla_host_t));
	374
	375	fc_vport->dd_data = vha;
	376
	377	vha->node_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL);
	378	if (!vha->node_name)
	379	goto create_vhost_failed_1;
	380
	381	vha->port_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL);
	382	if (!vha->port_name)
	383	goto create_vhost_failed_2;
	384
	385	/* New host info */
	386	u64_to_wwn(fc_vport->node_name, vha->node_name);
	387	u64_to_wwn(fc_vport->port_name, vha->port_name);
	388
	389	vha->host = host;
	390	vha->host_no = host->host_no;
	391	vha->parent = ha;
	392	vha->fc_vport = fc_vport;
	393	vha->device_flags = 0;
2c3dfe3f SJ	394	vha->vp_idx = qla24xx_allocate_vp_id(vha);
	395	if (vha->vp_idx > ha->max_npiv_vports) {
	396	DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
	397	vha->host_no));
	398	goto create_vhost_failed_3;
	399	}
	400	vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
	401
0b05a1f0 MB	402	init_completion(&vha->mbx_cmd_comp);
	403	complete(&vha->mbx_cmd_comp);
	404	init_completion(&vha->mbx_intr_comp);
2c3dfe3f SJ	405
	406	INIT_LIST_HEAD(&vha->list);
	407	INIT_LIST_HEAD(&vha->fcports);
	408	INIT_LIST_HEAD(&vha->vp_fcports);
08b95a12	409	INIT_LIST_HEAD(&vha->work_list);
2c3dfe3f SJ	410
	411	vha->dpc_flags = 0L;
	412	set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
	413	set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
	414
	415	/*
	416	* To fix the issue of processing a parent's RSCN for the vport before
	417	* its SCR is complete.
	418	*/
	419	set_bit(VP_SCR_NEEDED, &vha->vp_flags);
	420	atomic_set(&vha->loop_state, LOOP_DOWN);
	421	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	422
	423	qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
	424
	425	host->can_queue = vha->request_q_length + 128;
	426	host->this_id = 255;
	427	host->cmd_per_lun = 3;
	428	host->max_cmd_len = MAX_CMDSZ;
	429	host->max_channel = MAX_BUSES - 1;
	430	host->max_lun = MAX_LUNS;
711c1d91	431	host->unique_id = host->host_no;
2c3dfe3f SJ	432	host->max_id = MAX_TARGETS_2200;
	433	host->transportt = qla2xxx_transport_vport_template;
	434
	435	DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
	436	vha->host_no, vha));
	437
	438	vha->flags.init_done = 1;
2c3dfe3f SJ	439
	440	return vha;
	441
	442	create_vhost_failed_3:
	443	kfree(vha->port_name);
	444
	445	create_vhost_failed_2:
	446	kfree(vha->node_name);
	447
	448	create_vhost_failed_1:
	449	return NULL;
	450	}