[deliverable/linux.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 *);

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 */
	down(&ha->vport_sem);
	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));
		up(&ha->vport_sem);
		return vp_id;
	}

	set_bit(vp_id, 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, ha->vp_idx_map);
	list_del(&vha->vp_list);
	up(&ha->vport_sem);
}

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));

		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;

	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)
{
	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);

	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->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_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);

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