[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 "qla_gbl.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->vp_idx && 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;
	struct qla_hw_data *ha = vha->hw;

	/* 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->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;
	struct qla_hw_data *ha = vha->hw;

	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->list);
	mutex_unlock(&ha->vport_lock);
}

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

	/* Locate matching device in database. */
	list_for_each_entry(vha, &ha->vp_list, 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;

	list_for_each_entry(fcport, &vha->vp_fcports, list) {
		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);
		atomic_set(&fcport->state, FCS_UNCONFIGURED);
	}
}

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);

	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;
	struct qla_hw_data *ha = vha->hw;
	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);

	/* Check if physical ha port is Up */
	if (atomic_read(&base_vha->loop_state) == LOOP_DOWN  ||
		atomic_read(&base_vha->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->hw, "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(struct qla_hw_data *ha, uint16_t *mb)
{
	scsi_qla_host_t *vha;
	int i = 0;

	list_for_each_entry(vha, &ha->vp_list, list) {
		if (vha->vp_idx) {
			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;
			}
		}
		i++;
	}
}

int
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);
	}

	/* To exclusively reset vport, we need to log it out first.*/
	if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
		qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);

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

static int
qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;
	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);

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

		return 0;
	}

	if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
		qla2x00_update_fcports(vha);
		clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
	}

	if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
		!test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
		atomic_read(&vha->loop_state) != LOOP_DOWN) {

		DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
						vha->host_no));
		qla2x00_relogin(vha);

		DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
							vha->host_no));
	}

	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 (atomic_read(&vha->vp_state) == VP_ACTIVE &&
	    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 *vha)
{
	int ret;
	struct qla_hw_data *ha = vha->hw;
	scsi_qla_host_t *vp;

	if (vha->vp_idx)
		return;
	if (list_empty(&ha->vp_list))
		return;

	clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);

	list_for_each_entry(vp, &ha->vp_list, list) {
		if (vp->vp_idx)
			ret = qla2x00_do_dpc_vp(vp);
	}
}

int
qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
{
	scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
	struct qla_hw_data *ha = base_vha->hw;
	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, base_vha->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", base_vha->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 *base_vha = shost_priv(fc_vport->shost);
	struct qla_hw_data *ha = base_vha->hw;
	scsi_qla_host_t *vha;
	struct scsi_host_template *sht = &qla24xx_driver_template;
	struct Scsi_Host *host;

	vha = qla2x00_create_host(sht, ha);
	if (!vha) {
		DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
		return(NULL);
	}

	host = vha->host;
	fc_vport->dd_data = vha;

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

	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;
	}
	vha->mgmt_svr_loop_id = 10 + vha->vp_idx;

	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 = ha->req->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:
	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	*/
2c3dfe3f SJ	7	#include "qla_def.h"
7b867cf7	8	#include "qla_gbl.h"
2c3dfe3f	9
2c3dfe3f SJ	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	{
7b867cf7	22	if (vha->vp_idx && vha->timer_active) {
2c3dfe3f SJ	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;
7b867cf7	32	struct qla_hw_data *ha = vha->hw;
2c3dfe3f SJ	33
2c3dfe3f SJ	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	47	vha->vp_idx = vp_id;
7b867cf7	48	list_add_tail(&vha->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;
7b867cf7	57	struct qla_hw_data *ha = vha->hw;
2c3dfe3f	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);
7b867cf7	64	list_del(&vha->list);
6c2f527c	65	mutex_unlock(&ha->vport_lock);
2c3dfe3f SJ	66	}
2c3dfe3f SJ	67
a824ebb3	68	static scsi_qla_host_t *
7b867cf7	69	qla24xx_find_vhost_by_name(struct qla_hw_data ha, uint8_t port_name)
2c3dfe3f SJ	70	{
	71	scsi_qla_host_t *vha;
	72
	73	/* Locate matching device in database. */
7b867cf7	74	list_for_each_entry(vha, &ha->vp_list, list) {
2c3dfe3f SJ	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;
2c3dfe3f	98
7b867cf7	99	list_for_each_entry(fcport, &vha->vp_fcports, list) {
2c3dfe3f SJ	100	DEBUG15(printk("scsi(%ld): Marking port dead, "
	101	"loop_id=0x%04x :%x\n",
	102	vha->host_no, fcport->loop_id, fcport->vp_idx));
	103
2c3dfe3f	104	qla2x00_mark_device_lost(vha, fcport, 0, 0);
c9c5ced9	105	atomic_set(&fcport->state, FCS_UNCONFIGURED);
2c3dfe3f SJ	106	}
	107	}
	108
	109	int
	110	qla24xx_disable_vp(scsi_qla_host_t *vha)
	111	{
	112	int ret;
	113
	114	ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
	115	atomic_set(&vha->loop_state, LOOP_DOWN);
	116	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	117
2c3dfe3f SJ	118	qla2x00_mark_vp_devices_dead(vha);
	119	atomic_set(&vha->vp_state, VP_FAILED);
	120	vha->flags.management_server_logged_in = 0;
	121	if (ret == QLA_SUCCESS) {
	122	fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
	123	} else {
	124	fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
	125	return -1;
	126	}
	127	return 0;
	128	}
	129
	130	int
	131	qla24xx_enable_vp(scsi_qla_host_t *vha)
	132	{
	133	int ret;
7b867cf7 AC	134	struct qla_hw_data *ha = vha->hw;
7b867cf7 AC	135	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
2c3dfe3f SJ	136
2c3dfe3f SJ	137	/* Check if physical ha port is Up */
7b867cf7 AC	138	if (atomic_read(&base_vha->loop_state) == LOOP_DOWN \|\|
7b867cf7 AC	139	atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
2c3dfe3f SJ	140	vha->vp_err_state = VP_ERR_PORTDWN;
	141	fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
	142	goto enable_failed;
	143	}
	144
	145	/* Initialize the new vport unless it is a persistent port */
6c2f527c	146	mutex_lock(&ha->vport_lock);
2c3dfe3f	147	ret = qla24xx_modify_vp_config(vha);
6c2f527c	148	mutex_unlock(&ha->vport_lock);
2c3dfe3f SJ	149
	150	if (ret != QLA_SUCCESS) {
	151	fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
	152	goto enable_failed;
	153	}
	154
	155	DEBUG15(qla_printk(KERN_INFO, ha,
	156	"Virtual port with id: %d - Enabled\n", vha->vp_idx));
	157	return 0;
	158
	159	enable_failed:
	160	DEBUG15(qla_printk(KERN_INFO, ha,
	161	"Virtual port with id: %d - Disabled\n", vha->vp_idx));
	162	return 1;
	163	}
	164
26ff776d	165	static void
2c3dfe3f SJ	166	qla24xx_configure_vp(scsi_qla_host_t *vha)
	167	{
	168	struct fc_vport *fc_vport;
	169	int ret;
	170
	171	fc_vport = vha->fc_vport;
	172
	173	DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
	174	vha->host_no, __func__));
	175	ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
	176	if (ret != QLA_SUCCESS) {
7b867cf7 AC	177	DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable "
7b867cf7 AC	178	"receiving of RSCN requests: 0x%x\n", ret));
2c3dfe3f SJ	179	return;
	180	} else {
	181	/* Corresponds to SCR enabled */
	182	clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
	183	}
	184
	185	vha->flags.online = 1;
	186	if (qla24xx_configure_vhba(vha))
	187	return;
	188
	189	atomic_set(&vha->vp_state, VP_ACTIVE);
	190	fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
	191	}
	192
	193	void
7b867cf7	194	qla2x00_alert_all_vps(struct qla_hw_data ha, uint16_t mb)
2c3dfe3f	195	{
2c3dfe3f	196	scsi_qla_host_t *vha;
7b867cf7	197	int i = 0;
2c3dfe3f	198
7b867cf7 AC	199	list_for_each_entry(vha, &ha->vp_list, list) {
7b867cf7 AC	200	if (vha->vp_idx) {
2c3dfe3f SJ	201	switch (mb[0]) {
	202	case MBA_LIP_OCCURRED:
	203	case MBA_LOOP_UP:
	204	case MBA_LOOP_DOWN:
	205	case MBA_LIP_RESET:
	206	case MBA_POINT_TO_POINT:
	207	case MBA_CHG_IN_CONNECTION:
	208	case MBA_PORT_UPDATE:
	209	case MBA_RSCN_UPDATE:
	210	DEBUG15(printk("scsi(%ld)%s: Async_event for"
7b867cf7 AC	211	" VP[%d], mb = 0x%x, vha=%p\n",
7b867cf7 AC	212	vha->host_no, __func__, i, *mb, vha));
2c3dfe3f SJ	213	qla2x00_async_event(vha, mb);
	214	break;
	215	}
	216	}
7b867cf7	217	i++;
2c3dfe3f SJ	218	}
	219	}
	220
7b867cf7	221	int
2c3dfe3f SJ	222	qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
	223	{
	224	/*
	225	* Physical port will do most of the abort and recovery work. We can
	226	* just treat it as a loop down
	227	*/
	228	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
	229	atomic_set(&vha->loop_state, LOOP_DOWN);
	230	qla2x00_mark_all_devices_lost(vha, 0);
	231	} else {
	232	if (!atomic_read(&vha->loop_down_timer))
	233	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	234	}
	235
7b867cf7 AC	236	/* To exclusively reset vport, we need to log it out first.*/
	237	if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
	238	qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
	239
2c3dfe3f SJ	240	DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
2c3dfe3f SJ	241	vha->host_no, vha->vp_idx));
7b867cf7	242	return qla24xx_enable_vp(vha);
2c3dfe3f SJ	243	}
2c3dfe3f SJ	244
a824ebb3	245	static int
2c3dfe3f SJ	246	qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
2c3dfe3f SJ	247	{
7b867cf7 AC	248	struct qla_hw_data *ha = vha->hw;
7b867cf7 AC	249	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
221726d4	250
2c3dfe3f SJ	251	if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
2c3dfe3f SJ	252	/* VP acquired. complete port configuration */
7b867cf7	253	if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
221726d4 SJ	254	qla24xx_configure_vp(vha);
	255	} else {
	256	set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
7b867cf7	257	set_bit(VP_DPC_NEEDED, &base_vha->dpc_flags);
221726d4 SJ	258	}
221726d4 SJ	259
2c3dfe3f SJ	260	return 0;
	261	}
	262
7b867cf7 AC	263	if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
	264	qla2x00_update_fcports(vha);
	265	clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
	266	}
	267
	268	if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
	269	!test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
	270	atomic_read(&vha->loop_state) != LOOP_DOWN) {
	271
	272	DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
	273	vha->host_no));
	274	qla2x00_relogin(vha);
	275
	276	DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
	277	vha->host_no));
	278	}
2c3dfe3f SJ	279
	280	if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
	281	(!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
	282	clear_bit(RESET_ACTIVE, &vha->dpc_flags);
	283	}
	284
5de1f70f SJ	285	if (atomic_read(&vha->vp_state) == VP_ACTIVE &&
5de1f70f SJ	286	test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2c3dfe3f SJ	287	if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
	288	qla2x00_loop_resync(vha);
	289	clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
	290	}
	291	}
	292
	293	return 0;
	294	}
	295
	296	void
7b867cf7	297	qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
2c3dfe3f SJ	298	{
2c3dfe3f SJ	299	int ret;
7b867cf7 AC	300	struct qla_hw_data *ha = vha->hw;
7b867cf7 AC	301	scsi_qla_host_t *vp;
2c3dfe3f	302
7b867cf7	303	if (vha->vp_idx)
2c3dfe3f SJ	304	return;
	305	if (list_empty(&ha->vp_list))
	306	return;
	307
7b867cf7	308	clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
2c3dfe3f	309
7b867cf7 AC	310	list_for_each_entry(vp, &ha->vp_list, list) {
	311	if (vp->vp_idx)
	312	ret = qla2x00_do_dpc_vp(vp);
2c3dfe3f SJ	313	}
	314	}
	315
	316	int
	317	qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
	318	{
7b867cf7 AC	319	scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
7b867cf7 AC	320	struct qla_hw_data *ha = base_vha->hw;
2c3dfe3f SJ	321	scsi_qla_host_t *vha;
	322	uint8_t port_name[WWN_SIZE];
	323
	324	if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
	325	return VPCERR_UNSUPPORTED;
	326
	327	/* Check up the F/W and H/W support NPIV */
	328	if (!ha->flags.npiv_supported)
	329	return VPCERR_UNSUPPORTED;
	330
	331	/* Check up whether npiv supported switch presented */
	332	if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
	333	return VPCERR_NO_FABRIC_SUPP;
	334
	335	/* Check up unique WWPN */
	336	u64_to_wwn(fc_vport->port_name, port_name);
7b867cf7	337	if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
50db6b13	338	return VPCERR_BAD_WWN;
2c3dfe3f SJ	339	vha = qla24xx_find_vhost_by_name(ha, port_name);
	340	if (vha)
	341	return VPCERR_BAD_WWN;
	342
	343	/* Check up max-npiv-supports */
	344	if (ha->num_vhosts > ha->max_npiv_vports) {
eb66dc60	345	DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
7b867cf7	346	"max_npv_vports %ud.\n", base_vha->host_no,
eb66dc60	347	ha->num_vhosts, ha->max_npiv_vports));
2c3dfe3f SJ	348	return VPCERR_UNSUPPORTED;
	349	}
	350	return 0;
	351	}
	352
	353	scsi_qla_host_t *
	354	qla24xx_create_vhost(struct fc_vport *fc_vport)
	355	{
7b867cf7 AC	356	scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
7b867cf7 AC	357	struct qla_hw_data *ha = base_vha->hw;
2c3dfe3f	358	scsi_qla_host_t *vha;
7b867cf7	359	struct scsi_host_template *sht = &qla24xx_driver_template;
2c3dfe3f SJ	360	struct Scsi_Host *host;
2c3dfe3f SJ	361
7b867cf7 AC	362	vha = qla2x00_create_host(sht, ha);
	363	if (!vha) {
	364	DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
2c3dfe3f SJ	365	return(NULL);
	366	}
	367
7b867cf7	368	host = vha->host;
2c3dfe3f SJ	369	fc_vport->dd_data = vha;
2c3dfe3f SJ	370
2c3dfe3f SJ	371	/* New host info */
	372	u64_to_wwn(fc_vport->node_name, vha->node_name);
	373	u64_to_wwn(fc_vport->port_name, vha->port_name);
	374
2c3dfe3f SJ	375	vha->fc_vport = fc_vport;
2c3dfe3f SJ	376	vha->device_flags = 0;
2c3dfe3f SJ	377	vha->vp_idx = qla24xx_allocate_vp_id(vha);
	378	if (vha->vp_idx > ha->max_npiv_vports) {
	379	DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
	380	vha->host_no));
7b867cf7	381	goto create_vhost_failed;
2c3dfe3f SJ	382	}
	383	vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
	384
2c3dfe3f SJ	385	vha->dpc_flags = 0L;
	386	set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
	387	set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
	388
	389	/*
	390	* To fix the issue of processing a parent's RSCN for the vport before
	391	* its SCR is complete.
	392	*/
	393	set_bit(VP_SCR_NEEDED, &vha->vp_flags);
	394	atomic_set(&vha->loop_state, LOOP_DOWN);
	395	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	396
	397	qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
	398
7b867cf7	399	host->can_queue = ha->req->length + 128;
2c3dfe3f SJ	400	host->this_id = 255;
	401	host->cmd_per_lun = 3;
	402	host->max_cmd_len = MAX_CMDSZ;
	403	host->max_channel = MAX_BUSES - 1;
	404	host->max_lun = MAX_LUNS;
711c1d91	405	host->unique_id = host->host_no;
2c3dfe3f SJ	406	host->max_id = MAX_TARGETS_2200;
	407	host->transportt = qla2xxx_transport_vport_template;
	408
	409	DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
	410	vha->host_no, vha));
	411
	412	vha->flags.init_done = 1;
2c3dfe3f SJ	413
	414	return vha;
	415
7b867cf7	416	create_vhost_failed:
2c3dfe3f SJ	417	return NULL;
2c3dfe3f SJ	418	}