* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (37 commits)
[SCSI] zfcp: fix double dbf id usage
[SCSI] zfcp: wait on SCSI work to be finished before proceeding with init dev
[SCSI] zfcp: fix erp list usage without using locks
[SCSI] zfcp: prevent fc_remote_port_delete calls for unregistered rport
[SCSI] zfcp: fix deadlock caused by shared work queue tasks
[SCSI] zfcp: put threshold data in hba trace
[SCSI] zfcp: Simplify zfcp data structures
[SCSI] zfcp: Simplify get_adapter_by_busid
[SCSI] zfcp: remove all typedefs and replace them with standards
[SCSI] zfcp: attach and release SAN nameserver port on demand
[SCSI] zfcp: remove unused references, declarations and flags
[SCSI] zfcp: Update message with input from review
[SCSI] zfcp: add queue_full sysfs attribute
[SCSI] scsi_dh: suppress comparison warning
[SCSI] scsi_dh: add Dell product information into rdac device handler
[SCSI] qla2xxx: remove the unused SCSI_QLOGIC_FC_FIRMWARE option
[SCSI] qla2xxx: fix printk format warnings
[SCSI] qla2xxx: Update version number to 8.02.01-k8.
[SCSI] qla2xxx: Ignore payload reserved-bits during RSCN processing.
[SCSI] qla2xxx: Additional residual-count corrections during UNDERRUN handling.
...
was updated to remove all vports for the fc_host as well.
+Transport supplied functions
+----------------------------
+
+The following functions are supplied by the FC-transport for use by LLDs.
+
+ fc_vport_create - create a vport
+ fc_vport_terminate - detach and remove a vport
+
+Details:
+
+/**
+ * fc_vport_create - Admin App or LLDD requests creation of a vport
+ * @shost: scsi host the virtual port is connected to.
+ * @ids: The world wide names, FC4 port roles, etc for
+ * the virtual port.
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+struct fc_vport *
+fc_vport_create(struct Scsi_Host *shost, struct fc_vport_identifiers *ids)
+
+/**
+ * fc_vport_terminate - Admin App or LLDD requests termination of a vport
+ * @vport: fc_vport to be terminated
+ *
+ * Calls the LLDD vport_delete() function, then deallocates and removes
+ * the vport from the shost and object tree.
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+int
+fc_vport_terminate(struct fc_vport *vport)
+
+
Credits
=======
The following people have contributed to this document:
#include <linux/blkdev.h>
#include <linux/mutex.h>
#include <linux/scatterlist.h>
+#include <linux/string_helpers.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
struct mmc_blk_data *md;
int err;
+ char cap_str[10];
+
/*
* Check that the card supports the command class(es) we need.
*/
if (err)
goto out;
- printk(KERN_INFO "%s: %s %s %lluKiB %s\n",
+ string_get_size(get_capacity(md->disk) << 9, STRING_UNITS_2,
+ cap_str, sizeof(cap_str));
+ printk(KERN_INFO "%s: %s %s %s %s\n",
md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
- (unsigned long long)(get_capacity(md->disk) >> 1),
- md->read_only ? "(ro)" : "");
+ cap_str, md->read_only ? "(ro)" : "");
mmc_set_drvdata(card, md);
add_disk(md->disk);
strncpy(zfcp_data.init_busid, token, BUS_ID_SIZE);
token = strsep(&str, ",");
- if (!token || strict_strtoull(token, 0, &zfcp_data.init_wwpn))
+ if (!token || strict_strtoull(token, 0,
+ (unsigned long long *) &zfcp_data.init_wwpn))
goto err_out;
token = strsep(&str, ",");
- if (!token || strict_strtoull(token, 0, &zfcp_data.init_fcp_lun))
+ if (!token || strict_strtoull(token, 0,
+ (unsigned long long *) &zfcp_data.init_fcp_lun))
goto err_out;
kfree(str);
err_out:
kfree(str);
- pr_err("zfcp: Parse error for device parameter string %s, "
- "device not attached.\n", devstr);
+ pr_err("zfcp: %s is not a valid SCSI device\n", devstr);
return 0;
}
-static struct zfcp_adapter *zfcp_get_adapter_by_busid(char *bus_id)
-{
- struct zfcp_adapter *adapter;
-
- list_for_each_entry(adapter, &zfcp_data.adapter_list_head, list)
- if ((strncmp(bus_id, adapter->ccw_device->dev.bus_id,
- BUS_ID_SIZE) == 0) &&
- !(atomic_read(&adapter->status) &
- ZFCP_STATUS_COMMON_REMOVE))
- return adapter;
- return NULL;
-}
-
static void __init zfcp_init_device_configure(void)
{
struct zfcp_adapter *adapter;
goto out_unit;
up(&zfcp_data.config_sema);
ccw_device_set_online(adapter->ccw_device);
+
zfcp_erp_wait(adapter);
+ wait_event(adapter->erp_done_wqh,
+ !(atomic_read(&unit->status) &
+ ZFCP_STATUS_UNIT_SCSI_WORK_PENDING));
+
down(&zfcp_data.config_sema);
zfcp_unit_put(unit);
out_unit:
if (!zfcp_data.gid_pn_cache)
goto out_gid_cache;
- INIT_LIST_HEAD(&zfcp_data.adapter_list_head);
- INIT_LIST_HEAD(&zfcp_data.adapter_remove_lh);
+ zfcp_data.work_queue = create_singlethread_workqueue("zfcp_wq");
+ INIT_LIST_HEAD(&zfcp_data.adapter_list_head);
sema_init(&zfcp_data.config_sema, 1);
rwlock_init(&zfcp_data.config_lock);
retval = misc_register(&zfcp_cfdc_misc);
if (retval) {
- pr_err("zfcp: registration of misc device zfcp_cfdc failed\n");
+ pr_err("zfcp: Registering the misc device zfcp_cfdc failed\n");
goto out_misc;
}
retval = zfcp_ccw_register();
if (retval) {
- pr_err("zfcp: Registration with common I/O layer failed.\n");
+ pr_err("zfcp: The zfcp device driver could not register with "
+ "the common I/O layer\n");
goto out_ccw_register;
}
*
* Returns: pointer to zfcp_unit or NULL
*/
-struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port,
- fcp_lun_t fcp_lun)
+struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
* Returns: pointer to zfcp_port or NULL
*/
struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter,
- wwn_t wwpn)
+ u64 wwpn)
{
struct zfcp_port *port;
*
* Sets up some unit internal structures and creates sysfs entry.
*/
-struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun)
+struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
unit->port = port;
unit->fcp_lun = fcp_lun;
- snprintf(unit->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx", fcp_lun);
+ snprintf(unit->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx",
+ (unsigned long long) fcp_lun);
unit->sysfs_device.parent = &port->sysfs_device;
unit->sysfs_device.release = zfcp_sysfs_unit_release;
dev_set_drvdata(&unit->sysfs_device, unit);
}
zfcp_unit_get(unit);
- unit->scsi_lun = scsilun_to_int((struct scsi_lun *)&unit->fcp_lun);
write_lock_irq(&zfcp_data.config_lock);
list_add_tail(&unit->list, &port->unit_list_head);
write_unlock_irq(&zfcp_data.config_lock);
- port->units++;
zfcp_port_get(port);
return unit;
*/
void zfcp_unit_dequeue(struct zfcp_unit *unit)
{
- zfcp_unit_wait(unit);
+ wait_event(unit->remove_wq, atomic_read(&unit->refcount) == 0);
write_lock_irq(&zfcp_data.config_lock);
list_del(&unit->list);
write_unlock_irq(&zfcp_data.config_lock);
- unit->port->units--;
zfcp_port_put(unit->port);
sysfs_remove_group(&unit->sysfs_device.kobj, &zfcp_sysfs_unit_attrs);
device_unregister(&unit->sysfs_device);
mempool_destroy(adapter->pool.data_gid_pn);
}
-static void zfcp_dummy_release(struct device *dev)
-{
- return;
-}
-
/**
* zfcp_status_read_refill - refill the long running status_read_requests
* @adapter: ptr to struct zfcp_adapter for which the buffers should be refilled
stat_work));
}
-static int zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
-{
- struct zfcp_port *port;
-
- port = zfcp_port_enqueue(adapter, 0, ZFCP_STATUS_PORT_WKA,
- ZFCP_DID_DIRECTORY_SERVICE);
- if (IS_ERR(port))
- return PTR_ERR(port);
- zfcp_port_put(port);
-
- return 0;
-}
-
/**
* zfcp_adapter_enqueue - enqueue a new adapter to the list
* @ccw_device: pointer to the struct cc_device
init_waitqueue_head(&adapter->erp_done_wqh);
INIT_LIST_HEAD(&adapter->port_list_head);
- INIT_LIST_HEAD(&adapter->port_remove_lh);
INIT_LIST_HEAD(&adapter->erp_ready_head);
INIT_LIST_HEAD(&adapter->erp_running_head);
spin_lock_init(&adapter->san_dbf_lock);
spin_lock_init(&adapter->scsi_dbf_lock);
spin_lock_init(&adapter->rec_dbf_lock);
- spin_lock_init(&adapter->req_q.lock);
+ spin_lock_init(&adapter->req_q_lock);
rwlock_init(&adapter->erp_lock);
rwlock_init(&adapter->abort_lock);
&zfcp_sysfs_adapter_attrs))
goto sysfs_failed;
- adapter->generic_services.parent = &adapter->ccw_device->dev;
- adapter->generic_services.release = zfcp_dummy_release;
- snprintf(adapter->generic_services.bus_id, BUS_ID_SIZE,
- "generic_services");
-
- if (device_register(&adapter->generic_services))
- goto generic_services_failed;
-
write_lock_irq(&zfcp_data.config_lock);
atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
list_add_tail(&adapter->list, &zfcp_data.adapter_list_head);
write_unlock_irq(&zfcp_data.config_lock);
- zfcp_data.adapters++;
-
- zfcp_nameserver_enqueue(adapter);
+ zfcp_fc_nameserver_init(adapter);
return 0;
-generic_services_failed:
- sysfs_remove_group(&ccw_device->dev.kobj,
- &zfcp_sysfs_adapter_attrs);
sysfs_failed:
zfcp_adapter_debug_unregister(adapter);
debug_register_failed:
cancel_work_sync(&adapter->scan_work);
cancel_work_sync(&adapter->stat_work);
zfcp_adapter_scsi_unregister(adapter);
- device_unregister(&adapter->generic_services);
sysfs_remove_group(&adapter->ccw_device->dev.kobj,
&zfcp_sysfs_adapter_attrs);
dev_set_drvdata(&adapter->ccw_device->dev, NULL);
list_del(&adapter->list);
write_unlock_irq(&zfcp_data.config_lock);
- /* decrease number of adapters in list */
- zfcp_data.adapters--;
-
zfcp_qdio_free(adapter);
zfcp_free_low_mem_buffers(adapter);
* d_id is used to enqueue ports with a well known address like the Directory
* Service for nameserver lookup.
*/
-struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
+struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
u32 status, u32 d_id)
{
struct zfcp_port *port;
int retval;
- char *bus_id;
port = kzalloc(sizeof(struct zfcp_port), GFP_KERNEL);
if (!port)
return ERR_PTR(-ENOMEM);
init_waitqueue_head(&port->remove_wq);
-
INIT_LIST_HEAD(&port->unit_list_head);
- INIT_LIST_HEAD(&port->unit_remove_lh);
+ INIT_WORK(&port->gid_pn_work, zfcp_erp_port_strategy_open_lookup);
port->adapter = adapter;
port->d_id = d_id;
atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
atomic_set(&port->refcount, 0);
- if (status & ZFCP_STATUS_PORT_WKA) {
- switch (d_id) {
- case ZFCP_DID_DIRECTORY_SERVICE:
- bus_id = "directory";
- break;
- case ZFCP_DID_MANAGEMENT_SERVICE:
- bus_id = "management";
- break;
- case ZFCP_DID_KEY_DISTRIBUTION_SERVICE:
- bus_id = "key_distribution";
- break;
- case ZFCP_DID_ALIAS_SERVICE:
- bus_id = "alias";
- break;
- case ZFCP_DID_TIME_SERVICE:
- bus_id = "time";
- break;
- default:
- kfree(port);
- return ERR_PTR(-EINVAL);
- }
- snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, "%s", bus_id);
- port->sysfs_device.parent = &adapter->generic_services;
- } else {
- snprintf(port->sysfs_device.bus_id,
- BUS_ID_SIZE, "0x%016llx", wwpn);
- port->sysfs_device.parent = &adapter->ccw_device->dev;
- }
+ snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx",
+ (unsigned long long) wwpn);
+ port->sysfs_device.parent = &adapter->ccw_device->dev;
port->sysfs_device.release = zfcp_sysfs_port_release;
dev_set_drvdata(&port->sysfs_device, port);
if (device_register(&port->sysfs_device))
goto err_out_free;
- if (status & ZFCP_STATUS_PORT_WKA)
- retval = sysfs_create_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_ns_port_attrs);
- else
- retval = sysfs_create_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_port_attrs);
+ retval = sysfs_create_group(&port->sysfs_device.kobj,
+ &zfcp_sysfs_port_attrs);
if (retval) {
device_unregister(&port->sysfs_device);
list_add_tail(&port->list, &adapter->port_list_head);
atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &port->status);
- if (d_id == ZFCP_DID_DIRECTORY_SERVICE)
- if (!adapter->nameserver_port)
- adapter->nameserver_port = port;
- adapter->ports++;
write_unlock_irq(&zfcp_data.config_lock);
*/
void zfcp_port_dequeue(struct zfcp_port *port)
{
- zfcp_port_wait(port);
+ wait_event(port->remove_wq, atomic_read(&port->refcount) == 0);
write_lock_irq(&zfcp_data.config_lock);
list_del(&port->list);
- port->adapter->ports--;
write_unlock_irq(&zfcp_data.config_lock);
if (port->rport)
fc_remote_port_delete(port->rport);
port->rport = NULL;
zfcp_adapter_put(port->adapter);
- if (atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA)
- sysfs_remove_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_ns_port_attrs);
- else
- sysfs_remove_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_port_attrs);
+ sysfs_remove_group(&port->sysfs_device.kobj, &zfcp_sysfs_port_attrs);
device_unregister(&port->sysfs_device);
}
down(&zfcp_data.config_sema);
if (zfcp_adapter_enqueue(ccw_device)) {
dev_err(&ccw_device->dev,
- "Setup of data structures failed.\n");
+ "Setting up data structures for the "
+ "FCP adapter failed\n");
retval = -EINVAL;
}
up(&zfcp_data.config_sema);
struct zfcp_adapter *adapter;
struct zfcp_port *port, *p;
struct zfcp_unit *unit, *u;
+ LIST_HEAD(unit_remove_lh);
+ LIST_HEAD(port_remove_lh);
ccw_device_set_offline(ccw_device);
down(&zfcp_data.config_sema);
write_lock_irq(&zfcp_data.config_lock);
list_for_each_entry_safe(port, p, &adapter->port_list_head, list) {
list_for_each_entry_safe(unit, u, &port->unit_list_head, list) {
- list_move(&unit->list, &port->unit_remove_lh);
+ list_move(&unit->list, &unit_remove_lh);
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE,
&unit->status);
}
- list_move(&port->list, &adapter->port_remove_lh);
+ list_move(&port->list, &port_remove_lh);
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
}
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
write_unlock_irq(&zfcp_data.config_lock);
- list_for_each_entry_safe(port, p, &adapter->port_remove_lh, list) {
- list_for_each_entry_safe(unit, u, &port->unit_remove_lh, list) {
- if (atomic_test_mask(ZFCP_STATUS_UNIT_REGISTERED,
- &unit->status))
+ list_for_each_entry_safe(port, p, &port_remove_lh, list) {
+ list_for_each_entry_safe(unit, u, &unit_remove_lh, list) {
+ if (atomic_read(&unit->status) &
+ ZFCP_STATUS_UNIT_REGISTERED)
scsi_remove_device(unit->device);
zfcp_unit_dequeue(unit);
}
zfcp_port_dequeue(port);
}
- zfcp_adapter_wait(adapter);
+ wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0);
zfcp_adapter_dequeue(adapter);
up(&zfcp_data.config_sema);
switch (event) {
case CIO_GONE:
- dev_warn(&adapter->ccw_device->dev, "device gone\n");
+ dev_warn(&adapter->ccw_device->dev,
+ "The FCP device has been detached\n");
zfcp_erp_adapter_shutdown(adapter, 0, 87, NULL);
break;
case CIO_NO_PATH:
- dev_warn(&adapter->ccw_device->dev, "no path\n");
+ dev_warn(&adapter->ccw_device->dev,
+ "The CHPID for the FCP device is offline\n");
zfcp_erp_adapter_shutdown(adapter, 0, 88, NULL);
break;
case CIO_OPER:
- dev_info(&adapter->ccw_device->dev, "operational again\n");
+ dev_info(&adapter->ccw_device->dev,
+ "The FCP device is operational again\n");
zfcp_erp_modify_adapter_status(adapter, 11, NULL,
ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
{
return ccw_driver_register(&zfcp_ccw_driver);
}
+
+/**
+ * zfcp_get_adapter_by_busid - find zfcp_adapter struct
+ * @busid: bus id string of zfcp adapter to find
+ */
+struct zfcp_adapter *zfcp_get_adapter_by_busid(char *busid)
+{
+ struct ccw_device *ccw_device;
+ struct zfcp_adapter *adapter = NULL;
+
+ ccw_device = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
+ if (ccw_device) {
+ adapter = dev_get_drvdata(&ccw_device->dev);
+ put_device(&ccw_device->dev);
+ }
+ return adapter;
+}
spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
}
+/**
+ * zfcp_hba_dbf_event_berr - trace event for bit error threshold
+ * @adapter: adapter affected by this QDIO related event
+ * @req: fsf request
+ */
+void zfcp_hba_dbf_event_berr(struct zfcp_adapter *adapter,
+ struct zfcp_fsf_req *req)
+{
+ struct zfcp_hba_dbf_record *r = &adapter->hba_dbf_buf;
+ struct fsf_status_read_buffer *sr_buf = req->data;
+ struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
+ memset(r, 0, sizeof(*r));
+ strncpy(r->tag, "berr", ZFCP_DBF_TAG_SIZE);
+ memcpy(&r->u.berr, err, sizeof(struct fsf_bit_error_payload));
+ debug_event(adapter->hba_dbf, 0, r, sizeof(*r));
+ spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
+}
static void zfcp_hba_dbf_view_response(char **p,
struct zfcp_hba_dbf_record_response *r)
{
zfcp_dbf_out(p, "sbal_count", "0x%02x", r->sbal_count);
}
+static void zfcp_hba_dbf_view_berr(char **p, struct fsf_bit_error_payload *r)
+{
+ zfcp_dbf_out(p, "link_failures", "%d", r->link_failure_error_count);
+ zfcp_dbf_out(p, "loss_of_sync_err", "%d", r->loss_of_sync_error_count);
+ zfcp_dbf_out(p, "loss_of_sig_err", "%d", r->loss_of_signal_error_count);
+ zfcp_dbf_out(p, "prim_seq_err", "%d",
+ r->primitive_sequence_error_count);
+ zfcp_dbf_out(p, "inval_trans_word_err", "%d",
+ r->invalid_transmission_word_error_count);
+ zfcp_dbf_out(p, "CRC_errors", "%d", r->crc_error_count);
+ zfcp_dbf_out(p, "prim_seq_event_to", "%d",
+ r->primitive_sequence_event_timeout_count);
+ zfcp_dbf_out(p, "elast_buf_overrun_err", "%d",
+ r->elastic_buffer_overrun_error_count);
+ zfcp_dbf_out(p, "adv_rec_buf2buf_cred", "%d",
+ r->advertised_receive_b2b_credit);
+ zfcp_dbf_out(p, "curr_rec_buf2buf_cred", "%d",
+ r->current_receive_b2b_credit);
+ zfcp_dbf_out(p, "adv_trans_buf2buf_cred", "%d",
+ r->advertised_transmit_b2b_credit);
+ zfcp_dbf_out(p, "curr_trans_buf2buf_cred", "%d",
+ r->current_transmit_b2b_credit);
+}
+
static int zfcp_hba_dbf_view_format(debug_info_t *id, struct debug_view *view,
char *out_buf, const char *in_buf)
{
zfcp_hba_dbf_view_status(&p, &r->u.status);
else if (strncmp(r->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
zfcp_hba_dbf_view_qdio(&p, &r->u.qdio);
+ else if (strncmp(r->tag, "berr", ZFCP_DBF_TAG_SIZE) == 0)
+ zfcp_hba_dbf_view_berr(&p, &r->u.berr);
p += sprintf(p, "\n");
return p - out_buf;
[75] = "physical port recovery escalation after failed port "
"recovery",
[76] = "port recovery escalation after failed unit recovery",
- [77] = "recovery opening nameserver port",
+ [77] = "",
[78] = "duplicate request id",
[79] = "link down",
[80] = "exclusive read-only unit access unsupported",
[81] = "shared read-write unit access unsupported",
[82] = "incoming rscn",
[83] = "incoming wwpn",
- [84] = "",
+ [84] = "wka port handle not valid close port",
[85] = "online",
[86] = "offline",
[87] = "ccw device gone",
[125] = "need newer zfcp",
[126] = "need newer microcode",
[127] = "arbitrated loop not supported",
- [128] = "unknown topology",
+ [128] = "",
[129] = "qtcb size mismatch",
[130] = "unknown fsf status ecd",
[131] = "fcp request too big",
void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
- struct zfcp_port *port = ct->port;
- struct zfcp_adapter *adapter = port->adapter;
- struct ct_hdr *hdr = zfcp_sg_to_address(ct->req);
+ struct zfcp_wka_port *wka_port = ct->wka_port;
+ struct zfcp_adapter *adapter = wka_port->adapter;
+ struct ct_hdr *hdr = sg_virt(ct->req);
struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
struct zfcp_san_dbf_record_ct_request *oct = &r->u.ct_req;
unsigned long flags;
r->fsf_reqid = (unsigned long)fsf_req;
r->fsf_seqno = fsf_req->seq_no;
r->s_id = fc_host_port_id(adapter->scsi_host);
- r->d_id = port->d_id;
+ r->d_id = wka_port->d_id;
oct->cmd_req_code = hdr->cmd_rsp_code;
oct->revision = hdr->revision;
oct->gs_type = hdr->gs_type;
void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
- struct zfcp_port *port = ct->port;
- struct zfcp_adapter *adapter = port->adapter;
- struct ct_hdr *hdr = zfcp_sg_to_address(ct->resp);
+ struct zfcp_wka_port *wka_port = ct->wka_port;
+ struct zfcp_adapter *adapter = wka_port->adapter;
+ struct ct_hdr *hdr = sg_virt(ct->resp);
struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
struct zfcp_san_dbf_record_ct_response *rct = &r->u.ct_resp;
unsigned long flags;
strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
r->fsf_reqid = (unsigned long)fsf_req;
r->fsf_seqno = fsf_req->seq_no;
- r->s_id = port->d_id;
+ r->s_id = wka_port->d_id;
r->d_id = fc_host_port_id(adapter->scsi_host);
rct->cmd_rsp_code = hdr->cmd_rsp_code;
rct->revision = hdr->revision;
zfcp_san_dbf_event_els("oels", 2, fsf_req,
fc_host_port_id(els->adapter->scsi_host),
- els->d_id, *(u8 *) zfcp_sg_to_address(els->req),
- zfcp_sg_to_address(els->req), els->req->length);
+ els->d_id, *(u8 *) sg_virt(els->req),
+ sg_virt(els->req), els->req->length);
}
/**
zfcp_san_dbf_event_els("rels", 2, fsf_req, els->d_id,
fc_host_port_id(els->adapter->scsi_host),
- *(u8 *)zfcp_sg_to_address(els->req),
- zfcp_sg_to_address(els->resp),
+ *(u8 *)sg_virt(els->req), sg_virt(els->resp),
els->resp->length);
}
struct zfcp_hba_dbf_record_response response;
struct zfcp_hba_dbf_record_status status;
struct zfcp_hba_dbf_record_qdio qdio;
+ struct fsf_bit_error_payload berr;
} u;
} __attribute__ ((packed));
/********************* GENERAL DEFINES *********************************/
-/**
- * zfcp_sg_to_address - determine kernel address from struct scatterlist
- * @list: struct scatterlist
- * Return: kernel address
- */
-static inline void *
-zfcp_sg_to_address(struct scatterlist *list)
-{
- return sg_virt(list);
-}
-
-/**
- * zfcp_address_to_sg - set up struct scatterlist from kernel address
- * @address: kernel address
- * @list: struct scatterlist
- * @size: buffer size
- */
-static inline void
-zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size)
-{
- sg_set_buf(list, address, size);
-}
-
#define REQUEST_LIST_SIZE 128
/********************* SCSI SPECIFIC DEFINES *********************************/
/*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/
-typedef unsigned long long wwn_t;
-typedef unsigned long long fcp_lun_t;
-/* data length field may be at variable position in FCP-2 FCP_CMND IU */
-typedef unsigned int fcp_dl_t;
-
/* timeout for name-server lookup (in seconds) */
#define ZFCP_NS_GID_PN_TIMEOUT 10
/* FCP(-2) FCP_CMND IU */
struct fcp_cmnd_iu {
- fcp_lun_t fcp_lun; /* FCP logical unit number */
+ u64 fcp_lun; /* FCP logical unit number */
u8 crn; /* command reference number */
u8 reserved0:5; /* reserved */
u8 task_attribute:3; /* task attribute */
struct fcp_logo {
u32 command;
u32 nport_did;
- wwn_t nport_wwpn;
+ u64 nport_wwpn;
} __attribute__((packed));
/*
#define ZFCP_LS_RSCN 0x61
#define ZFCP_LS_RNID 0x78
-struct zfcp_ls_rjt_par {
- u8 action;
- u8 reason_code;
- u8 reason_expl;
- u8 vendor_unique;
-} __attribute__ ((packed));
-
struct zfcp_ls_adisc {
u8 code;
u8 field[3];
u32 nport_id;
} __attribute__ ((packed));
-struct zfcp_ls_adisc_acc {
- u8 code;
- u8 field[3];
- u32 hard_nport_id;
- u64 wwpn;
- u64 wwnn;
- u32 nport_id;
-} __attribute__ ((packed));
-
-struct zfcp_rc_entry {
- u8 code;
- const char *description;
-};
-
/*
* FC-GS-2 stuff
*/
#define ZFCP_STATUS_COMMON_RUNNING 0x40000000
#define ZFCP_STATUS_COMMON_ERP_FAILED 0x20000000
#define ZFCP_STATUS_COMMON_UNBLOCKED 0x10000000
-#define ZFCP_STATUS_COMMON_OPENING 0x08000000
#define ZFCP_STATUS_COMMON_OPEN 0x04000000
-#define ZFCP_STATUS_COMMON_CLOSING 0x02000000
#define ZFCP_STATUS_COMMON_ERP_INUSE 0x01000000
#define ZFCP_STATUS_COMMON_ACCESS_DENIED 0x00800000
#define ZFCP_STATUS_COMMON_ACCESS_BOXED 0x00400000
/* adapter status */
#define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002
-#define ZFCP_STATUS_ADAPTER_REGISTERED 0x00000004
#define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008
#define ZFCP_STATUS_ADAPTER_HOST_CON_INIT 0x00000010
#define ZFCP_STATUS_ADAPTER_ERP_THREAD_UP 0x00000020
#define ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL 0x00000080
#define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100
#define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200
-#define ZFCP_STATUS_ADAPTER_XPORT_OK 0x00000800
/* FC-PH/FC-GS well-known address identifiers for generic services */
+#define ZFCP_DID_WKA 0xFFFFF0
#define ZFCP_DID_MANAGEMENT_SERVICE 0xFFFFFA
#define ZFCP_DID_TIME_SERVICE 0xFFFFFB
#define ZFCP_DID_DIRECTORY_SERVICE 0xFFFFFC
#define ZFCP_STATUS_PORT_DID_DID 0x00000002
#define ZFCP_STATUS_PORT_PHYS_CLOSING 0x00000004
#define ZFCP_STATUS_PORT_NO_WWPN 0x00000008
-#define ZFCP_STATUS_PORT_NO_SCSI_ID 0x00000010
#define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020
-/* for ports with well known addresses */
-#define ZFCP_STATUS_PORT_WKA \
- (ZFCP_STATUS_PORT_NO_WWPN | \
- ZFCP_STATUS_PORT_NO_SCSI_ID)
+/* well known address (WKA) port status*/
+enum zfcp_wka_status {
+ ZFCP_WKA_PORT_OFFLINE,
+ ZFCP_WKA_PORT_CLOSING,
+ ZFCP_WKA_PORT_OPENING,
+ ZFCP_WKA_PORT_ONLINE,
+};
/* logical unit status */
-#define ZFCP_STATUS_UNIT_TEMPORARY 0x00000002
#define ZFCP_STATUS_UNIT_SHARED 0x00000004
#define ZFCP_STATUS_UNIT_READONLY 0x00000008
#define ZFCP_STATUS_UNIT_REGISTERED 0x00000010
#define ZFCP_STATUS_UNIT_SCSI_WORK_PENDING 0x00000020
/* FSF request status (this does not have a common part) */
-#define ZFCP_STATUS_FSFREQ_NOT_INIT 0x00000000
-#define ZFCP_STATUS_FSFREQ_POOL 0x00000001
#define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT 0x00000002
#define ZFCP_STATUS_FSFREQ_COMPLETED 0x00000004
#define ZFCP_STATUS_FSFREQ_ERROR 0x00000008
#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
-#define ZFCP_STATUS_FSFREQ_ABORTING 0x00000020
#define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040
#define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED 0x00000080
#define ZFCP_STATUS_FSFREQ_ABORTED 0x00000100
* a port name is required */
struct ct_iu_gid_pn_req {
struct ct_hdr header;
- wwn_t wwpn;
+ u64 wwpn;
} __attribute__ ((packed));
/* FS_ACC IU and data unit for GID_PN nameserver request */
u32 d_id;
} __attribute__ ((packed));
-typedef void (*zfcp_send_ct_handler_t)(unsigned long);
-
/**
* struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct
- * @port: port where the request is sent to
+ * @wka_port: port where the request is sent to
* @req: scatter-gather list for request
* @resp: scatter-gather list for response
* @req_count: number of elements in request scatter-gather list
* @status: used to pass error status to calling function
*/
struct zfcp_send_ct {
- struct zfcp_port *port;
+ struct zfcp_wka_port *wka_port;
struct scatterlist *req;
struct scatterlist *resp;
unsigned int req_count;
unsigned int resp_count;
- zfcp_send_ct_handler_t handler;
+ void (*handler)(unsigned long);
unsigned long handler_data;
int timeout;
struct completion *completion;
struct zfcp_port *port;
};
-typedef void (*zfcp_send_els_handler_t)(unsigned long);
-
/**
* struct zfcp_send_els - used to pass parameters to function zfcp_fsf_send_els
* @adapter: adapter where request is sent from
struct scatterlist *resp;
unsigned int req_count;
unsigned int resp_count;
- zfcp_send_els_handler_t handler;
+ void (*handler)(unsigned long);
unsigned long handler_data;
struct completion *completion;
int ls_code;
int status;
};
+struct zfcp_wka_port {
+ struct zfcp_adapter *adapter;
+ wait_queue_head_t completion_wq;
+ enum zfcp_wka_status status;
+ atomic_t refcount;
+ u32 d_id;
+ u32 handle;
+ struct mutex mutex;
+ struct delayed_work work;
+};
+
struct zfcp_qdio_queue {
- struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q]; /* SBALs */
- u8 first; /* index of next free bfr
- in queue (free_count>0) */
- atomic_t count; /* number of free buffers
- in queue */
- spinlock_t lock; /* lock for operations on queue */
- int pci_batch; /* SBALs since PCI indication
- was last set */
+ struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q];
+ u8 first; /* index of next free bfr in queue */
+ atomic_t count; /* number of free buffers in queue */
};
struct zfcp_erp_action {
struct zfcp_adapter *adapter; /* device which should be recovered */
struct zfcp_port *port;
struct zfcp_unit *unit;
- volatile u32 status; /* recovery status */
+ u32 status; /* recovery status */
u32 step; /* active step of this erp action */
struct zfcp_fsf_req *fsf_req; /* fsf request currently pending
for this action */
atomic_t refcount; /* reference count */
wait_queue_head_t remove_wq; /* can be used to wait for
refcount drop to zero */
- wwn_t peer_wwnn; /* P2P peer WWNN */
- wwn_t peer_wwpn; /* P2P peer WWPN */
+ u64 peer_wwnn; /* P2P peer WWNN */
+ u64 peer_wwpn; /* P2P peer WWPN */
u32 peer_d_id; /* P2P peer D_ID */
struct ccw_device *ccw_device; /* S/390 ccw device */
u32 hydra_version; /* Hydra version */
u16 timer_ticks; /* time int for a tick */
struct Scsi_Host *scsi_host; /* Pointer to mid-layer */
struct list_head port_list_head; /* remote port list */
- struct list_head port_remove_lh; /* head of ports to be
- removed */
- u32 ports; /* number of remote ports */
unsigned long req_no; /* unique FSF req number */
struct list_head *req_list; /* list of pending reqs */
spinlock_t req_list_lock; /* request list lock */
struct zfcp_qdio_queue req_q; /* request queue */
+ spinlock_t req_q_lock; /* for operations on queue */
+ int req_q_pci_batch; /* SBALs since PCI indication
+ was last set */
u32 fsf_req_seq_no; /* FSF cmnd seq number */
wait_queue_head_t request_wq; /* can be used to wait for
more avaliable SBALs */
actions */
u32 erp_low_mem_count; /* nr of erp actions waiting
for memory */
- struct zfcp_port *nameserver_port; /* adapter's nameserver */
+ struct zfcp_wka_port nsp; /* adapter's nameserver */
debug_info_t *rec_dbf;
debug_info_t *hba_dbf;
debug_info_t *san_dbf; /* debug feature areas */
struct zfcp_scsi_dbf_record scsi_dbf_buf;
struct zfcp_adapter_mempool pool; /* Adapter memory pools */
struct qdio_initialize qdio_init_data; /* for qdio_establish */
- struct device generic_services; /* directory for WKA ports */
struct fc_host_statistics *fc_stats;
struct fsf_qtcb_bottom_port *stats_reset_data;
unsigned long stats_reset;
struct work_struct scan_work;
+ atomic_t qdio_outb_full; /* queue full incidents */
};
struct zfcp_port {
refcount drop to zero */
struct zfcp_adapter *adapter; /* adapter used to access port */
struct list_head unit_list_head; /* head of logical unit list */
- struct list_head unit_remove_lh; /* head of luns to be removed
- list */
- u32 units; /* # of logical units in list */
atomic_t status; /* status of this remote port */
- wwn_t wwnn; /* WWNN if known */
- wwn_t wwpn; /* WWPN */
+ u64 wwnn; /* WWNN if known */
+ u64 wwpn; /* WWPN */
u32 d_id; /* D_ID */
u32 handle; /* handle assigned by FSF */
struct zfcp_erp_action erp_action; /* pending error recovery */
atomic_t erp_counter;
u32 maxframe_size;
u32 supported_classes;
+ struct work_struct gid_pn_work;
};
struct zfcp_unit {
refcount drop to zero */
struct zfcp_port *port; /* remote port of unit */
atomic_t status; /* status of this logical unit */
- unsigned int scsi_lun; /* own SCSI LUN */
- fcp_lun_t fcp_lun; /* own FCP_LUN */
+ u64 fcp_lun; /* own FCP_LUN */
u32 handle; /* handle assigned by FSF */
struct scsi_device *device; /* scsi device struct pointer */
struct zfcp_erp_action erp_action; /* pending error recovery */
u8 sbal_response; /* SBAL used in interrupt */
wait_queue_head_t completion_wq; /* can be used by a routine
to wait for completion */
- volatile u32 status; /* status of this request */
+ u32 status; /* status of this request */
u32 fsf_command; /* FSF Command copy */
struct fsf_qtcb *qtcb; /* address of associated QTCB */
u32 seq_no; /* Sequence number of request */
struct zfcp_data {
struct scsi_host_template scsi_host_template;
struct scsi_transport_template *scsi_transport_template;
- atomic_t status; /* Module status flags */
struct list_head adapter_list_head; /* head of adapter list */
- struct list_head adapter_remove_lh; /* head of adapters to be
- removed */
- u32 adapters; /* # of adapters in list */
rwlock_t config_lock; /* serialises changes
to adapter/port/unit
lists */
changes */
atomic_t loglevel; /* current loglevel */
char init_busid[BUS_ID_SIZE];
- wwn_t init_wwpn;
- fcp_lun_t init_fcp_lun;
- struct kmem_cache *fsf_req_qtcb_cache;
- struct kmem_cache *sr_buffer_cache;
- struct kmem_cache *gid_pn_cache;
+ u64 init_wwpn;
+ u64 init_fcp_lun;
+ struct kmem_cache *fsf_req_qtcb_cache;
+ struct kmem_cache *sr_buffer_cache;
+ struct kmem_cache *gid_pn_cache;
+ struct workqueue_struct *work_queue;
};
/* struct used by memory pools for fsf_requests */
#define ZFCP_SET 0x00000100
#define ZFCP_CLEAR 0x00000200
-#ifndef atomic_test_mask
-#define atomic_test_mask(mask, target) \
- ((atomic_read(target) & mask) == mask)
-#endif
-
#define zfcp_get_busid_by_adapter(adapter) (adapter->ccw_device->dev.bus_id)
-#define zfcp_get_busid_by_port(port) (zfcp_get_busid_by_adapter(port->adapter))
-#define zfcp_get_busid_by_unit(unit) (zfcp_get_busid_by_port(unit->port))
/*
* Helper functions for request ID management.
wake_up(&unit->remove_wq);
}
-static inline void
-zfcp_unit_wait(struct zfcp_unit *unit)
-{
- wait_event(unit->remove_wq, atomic_read(&unit->refcount) == 0);
-}
-
static inline void
zfcp_port_get(struct zfcp_port *port)
{
wake_up(&port->remove_wq);
}
-static inline void
-zfcp_port_wait(struct zfcp_port *port)
-{
- wait_event(port->remove_wq, atomic_read(&port->refcount) == 0);
-}
-
static inline void
zfcp_adapter_get(struct zfcp_adapter *adapter)
{
wake_up(&adapter->remove_wq);
}
-static inline void
-zfcp_adapter_wait(struct zfcp_adapter *adapter)
-{
- wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0);
-}
-
#endif /* ZFCP_DEF_H */
ZFCP_ERP_STEP_FSF_XCONFIG = 0x0001,
ZFCP_ERP_STEP_PHYS_PORT_CLOSING = 0x0010,
ZFCP_ERP_STEP_PORT_CLOSING = 0x0100,
- ZFCP_ERP_STEP_NAMESERVER_OPEN = 0x0200,
ZFCP_ERP_STEP_NAMESERVER_LOOKUP = 0x0400,
ZFCP_ERP_STEP_PORT_OPENING = 0x0800,
ZFCP_ERP_STEP_UNIT_CLOSING = 0x1000,
struct zfcp_port *port;
list_for_each_entry(port, &adapter->port_list_head, list)
- if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA))
- _zfcp_erp_port_reopen(port, clear, id, ref);
+ _zfcp_erp_port_reopen(port, clear, id, ref);
}
static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, u8 id,
int ret;
struct zfcp_adapter *adapter = act->adapter;
- atomic_clear_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
-
write_lock_irq(&adapter->erp_lock);
zfcp_erp_action_to_running(act);
write_unlock_irq(&adapter->erp_lock);
ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
failed_qdio:
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
- ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
- ZFCP_STATUS_ADAPTER_XPORT_OK,
+ ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&act->adapter->status);
return retval;
}
{
int retval;
- atomic_set_mask(ZFCP_STATUS_COMMON_CLOSING, &act->adapter->status);
zfcp_erp_adapter_strategy_generic(act, 1); /* close */
- atomic_clear_mask(ZFCP_STATUS_COMMON_CLOSING, &act->adapter->status);
if (act->status & ZFCP_STATUS_ERP_CLOSE_ONLY)
return ZFCP_ERP_EXIT;
- atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &act->adapter->status);
retval = zfcp_erp_adapter_strategy_generic(act, 0); /* open */
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING, &act->adapter->status);
if (retval == ZFCP_ERP_FAILED)
ssleep(8);
static void zfcp_erp_port_strategy_clearstati(struct zfcp_port *port)
{
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING |
- ZFCP_STATUS_COMMON_CLOSING |
- ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_PORT_DID_DID |
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_PORT_PHYS_CLOSING |
ZFCP_STATUS_PORT_INVALID_WWPN,
&port->status);
return ZFCP_ERP_CONTINUES;
}
-static void zfcp_erp_port_strategy_open_ns_wake(struct zfcp_erp_action *ns_act)
-{
- unsigned long flags;
- struct zfcp_adapter *adapter = ns_act->adapter;
- struct zfcp_erp_action *act, *tmp;
- int status;
-
- read_lock_irqsave(&adapter->erp_lock, flags);
- list_for_each_entry_safe(act, tmp, &adapter->erp_running_head, list) {
- if (act->step == ZFCP_ERP_STEP_NAMESERVER_OPEN) {
- status = atomic_read(&adapter->nameserver_port->status);
- if (status & ZFCP_STATUS_COMMON_ERP_FAILED)
- zfcp_erp_port_failed(act->port, 27, NULL);
- zfcp_erp_action_ready(act);
- }
- }
- read_unlock_irqrestore(&adapter->erp_lock, flags);
-}
-
-static int zfcp_erp_port_strategy_open_nameserver(struct zfcp_erp_action *act)
-{
- int retval;
-
- switch (act->step) {
- case ZFCP_ERP_STEP_UNINITIALIZED:
- case ZFCP_ERP_STEP_PHYS_PORT_CLOSING:
- case ZFCP_ERP_STEP_PORT_CLOSING:
- return zfcp_erp_port_strategy_open_port(act);
-
- case ZFCP_ERP_STEP_PORT_OPENING:
- if (atomic_read(&act->port->status) & ZFCP_STATUS_COMMON_OPEN)
- retval = ZFCP_ERP_SUCCEEDED;
- else
- retval = ZFCP_ERP_FAILED;
- /* this is needed anyway */
- zfcp_erp_port_strategy_open_ns_wake(act);
- return retval;
-
- default:
- return ZFCP_ERP_FAILED;
- }
-}
-
-static int zfcp_erp_port_strategy_open_lookup(struct zfcp_erp_action *act)
-{
- int retval;
-
- retval = zfcp_fc_ns_gid_pn_request(act);
- if (retval == -ENOMEM)
- return ZFCP_ERP_NOMEM;
- act->step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
- if (retval)
- return ZFCP_ERP_FAILED;
- return ZFCP_ERP_CONTINUES;
-}
-
static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
struct zfcp_port *port = act->port;
if (port->wwpn != adapter->peer_wwpn) {
- dev_err(&adapter->ccw_device->dev,
- "Failed to open port 0x%016Lx, "
- "Peer WWPN 0x%016Lx does not "
- "match.\n", port->wwpn,
- adapter->peer_wwpn);
zfcp_erp_port_failed(port, 25, NULL);
return ZFCP_ERP_FAILED;
}
return zfcp_erp_port_strategy_open_port(act);
}
+void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
+{
+ int retval;
+ struct zfcp_port *port = container_of(work, struct zfcp_port,
+ gid_pn_work);
+
+ retval = zfcp_fc_ns_gid_pn(&port->erp_action);
+ if (retval == -ENOMEM)
+ zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM);
+ port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
+ if (retval)
+ zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED);
+
+}
+
static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
struct zfcp_port *port = act->port;
- struct zfcp_port *ns_port = adapter->nameserver_port;
int p_status = atomic_read(&port->status);
switch (act->step) {
case ZFCP_ERP_STEP_PORT_CLOSING:
if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)
return zfcp_erp_open_ptp_port(act);
- if (!ns_port) {
- dev_err(&adapter->ccw_device->dev,
- "Nameserver port unavailable.\n");
- return ZFCP_ERP_FAILED;
- }
- if (!(atomic_read(&ns_port->status) &
- ZFCP_STATUS_COMMON_UNBLOCKED)) {
- /* nameserver port may live again */
- atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING,
- &ns_port->status);
- if (zfcp_erp_port_reopen(ns_port, 0, 77, act) >= 0) {
- act->step = ZFCP_ERP_STEP_NAMESERVER_OPEN;
- return ZFCP_ERP_CONTINUES;
- }
- return ZFCP_ERP_FAILED;
+ if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) {
+ queue_work(zfcp_data.work_queue, &port->gid_pn_work);
+ return ZFCP_ERP_CONTINUES;
}
- /* else nameserver port is already open, fall through */
- case ZFCP_ERP_STEP_NAMESERVER_OPEN:
- if (!(atomic_read(&ns_port->status) & ZFCP_STATUS_COMMON_OPEN))
- return ZFCP_ERP_FAILED;
- return zfcp_erp_port_strategy_open_lookup(act);
-
case ZFCP_ERP_STEP_NAMESERVER_LOOKUP:
if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) {
if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) {
case ZFCP_ERP_STEP_PORT_OPENING:
/* D_ID might have changed during open */
- if ((p_status & ZFCP_STATUS_COMMON_OPEN) &&
- (p_status & ZFCP_STATUS_PORT_DID_DID))
- return ZFCP_ERP_SUCCEEDED;
+ if (p_status & ZFCP_STATUS_COMMON_OPEN) {
+ if (p_status & ZFCP_STATUS_PORT_DID_DID)
+ return ZFCP_ERP_SUCCEEDED;
+ else {
+ act->step = ZFCP_ERP_STEP_PORT_CLOSING;
+ return ZFCP_ERP_CONTINUES;
+ }
/* fall through otherwise */
+ }
}
return ZFCP_ERP_FAILED;
}
-static int zfcp_erp_port_strategy_open(struct zfcp_erp_action *act)
-{
- if (atomic_read(&act->port->status) & (ZFCP_STATUS_PORT_WKA))
- return zfcp_erp_port_strategy_open_nameserver(act);
- return zfcp_erp_port_strategy_open_common(act);
-}
-
static int zfcp_erp_port_strategy(struct zfcp_erp_action *erp_action)
{
struct zfcp_port *port = erp_action->port;
+ if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC)
+ goto close_init_done;
+
switch (erp_action->step) {
case ZFCP_ERP_STEP_UNINITIALIZED:
zfcp_erp_port_strategy_clearstati(port);
return ZFCP_ERP_FAILED;
break;
}
+
+close_init_done:
if (erp_action->status & ZFCP_STATUS_ERP_CLOSE_ONLY)
return ZFCP_ERP_EXIT;
- else
- return zfcp_erp_port_strategy_open(erp_action);
- return ZFCP_ERP_FAILED;
+ return zfcp_erp_port_strategy_open_common(erp_action);
}
static void zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *unit)
{
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING |
- ZFCP_STATUS_COMMON_CLOSING |
- ZFCP_STATUS_COMMON_ACCESS_DENIED |
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_UNIT_SHARED |
ZFCP_STATUS_UNIT_READONLY,
&unit->status);
break;
case ZFCP_ERP_FAILED :
atomic_inc(&unit->erp_counter);
- if (atomic_read(&unit->erp_counter) > ZFCP_MAX_ERPS)
+ if (atomic_read(&unit->erp_counter) > ZFCP_MAX_ERPS) {
+ dev_err(&unit->port->adapter->ccw_device->dev,
+ "ERP failed for unit 0x%016Lx on "
+ "port 0x%016Lx\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 21, NULL);
+ }
break;
}
result = ZFCP_ERP_EXIT;
}
atomic_inc(&port->erp_counter);
- if (atomic_read(&port->erp_counter) > ZFCP_MAX_ERPS)
+ if (atomic_read(&port->erp_counter) > ZFCP_MAX_ERPS) {
+ dev_err(&port->adapter->ccw_device->dev,
+ "ERP failed for remote port 0x%016Lx\n",
+ (unsigned long long)port->wwpn);
zfcp_erp_port_failed(port, 22, NULL);
+ }
break;
}
case ZFCP_ERP_FAILED :
atomic_inc(&adapter->erp_counter);
- if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS)
+ if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS) {
+ dev_err(&adapter->ccw_device->dev,
+ "ERP cannot recover an error "
+ "on the FCP device\n");
zfcp_erp_adapter_failed(adapter, 23, NULL);
+ }
break;
}
struct zfcp_unit *unit = p->unit;
struct fc_rport *rport = unit->port->rport;
scsi_scan_target(&rport->dev, 0, rport->scsi_target_id,
- unit->scsi_lun, 0);
+ scsilun_to_int((struct scsi_lun *)&unit->fcp_lun), 0);
atomic_clear_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
zfcp_unit_put(unit);
+ wake_up(&unit->port->adapter->erp_done_wqh);
kfree(p);
}
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p) {
dev_err(&unit->port->adapter->ccw_device->dev,
- "Out of resources. Could not register unit "
- "0x%016Lx on port 0x%016Lx with SCSI stack.\n",
- unit->fcp_lun, unit->port->wwpn);
+ "Registering unit 0x%016Lx on port 0x%016Lx failed\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
return;
}
atomic_set_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
INIT_WORK(&p->work, zfcp_erp_scsi_scan);
p->unit = unit;
- schedule_work(&p->work);
+ queue_work(zfcp_data.work_queue, &p->work);
}
static void zfcp_erp_rport_register(struct zfcp_port *port)
port->rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids);
if (!port->rport) {
dev_err(&port->adapter->ccw_device->dev,
- "Failed registration of rport "
- "0x%016Lx.\n", port->wwpn);
+ "Registering port 0x%016Lx failed\n",
+ (unsigned long long)port->wwpn);
return;
}
static void zfcp_erp_rports_del(struct zfcp_adapter *adapter)
{
struct zfcp_port *port;
- list_for_each_entry(port, &adapter->port_list_head, list)
- if (port->rport && !(atomic_read(&port->status) &
- ZFCP_STATUS_PORT_WKA)) {
- fc_remote_port_delete(port->rport);
- port->rport = NULL;
- }
+ list_for_each_entry(port, &adapter->port_list_head, list) {
+ if (!port->rport)
+ continue;
+ fc_remote_port_delete(port->rport);
+ port->rport = NULL;
+ }
}
static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
zfcp_erp_wakeup(adapter);
}
- zfcp_rec_dbf_event_thread(4, adapter);
+ zfcp_rec_dbf_event_thread_lock(4, adapter);
down_interruptible(&adapter->erp_ready_sem);
- zfcp_rec_dbf_event_thread(5, adapter);
+ zfcp_rec_dbf_event_thread_lock(5, adapter);
}
atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status);
retval = kernel_thread(zfcp_erp_thread, adapter, SIGCHLD);
if (retval < 0) {
dev_err(&adapter->ccw_device->dev,
- "Creation of ERP thread failed.\n");
+ "Creating an ERP thread for the FCP device failed.\n");
return retval;
}
wait_event(adapter->erp_thread_wqh,
{
atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL, &adapter->status);
up(&adapter->erp_ready_sem);
- zfcp_rec_dbf_event_thread_lock(2, adapter);
+ zfcp_rec_dbf_event_thread_lock(3, adapter);
wait_event(adapter->erp_thread_wqh,
!(atomic_read(&adapter->status) &
{
zfcp_erp_modify_adapter_status(adapter, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
- dev_err(&adapter->ccw_device->dev, "Adapter ERP failed.\n");
}
/**
{
zfcp_erp_modify_port_status(port, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
-
- if (atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA)
- dev_err(&port->adapter->ccw_device->dev,
- "Port ERP failed for WKA port d_id=0x%06x.\n",
- port->d_id);
- else
- dev_err(&port->adapter->ccw_device->dev,
- "Port ERP failed for port wwpn=0x%016Lx.\n",
- port->wwpn);
}
/**
{
zfcp_erp_modify_unit_status(unit, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
-
- dev_err(&unit->port->adapter->ccw_device->dev,
- "Unit ERP failed for unit 0x%016Lx on port 0x%016Lx.\n",
- unit->fcp_lun, unit->port->wwpn);
}
/**
if (!(status & (ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_COMMON_ACCESS_BOXED))) {
- if (!(status & ZFCP_STATUS_PORT_WKA))
- list_for_each_entry(unit, &port->unit_list_head, list)
- zfcp_erp_unit_access_changed(unit, id, ref);
+ list_for_each_entry(unit, &port->unit_list_head, list)
+ zfcp_erp_unit_access_changed(unit, id, ref);
return;
}
return;
read_lock_irqsave(&zfcp_data.config_lock, flags);
- if (adapter->nameserver_port)
- zfcp_erp_port_access_changed(adapter->nameserver_port, id, ref);
list_for_each_entry(port, &adapter->port_list_head, list)
- if (port != adapter->nameserver_port)
- zfcp_erp_port_access_changed(port, id, ref);
+ zfcp_erp_port_access_changed(port, id, ref);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
#include "zfcp_def.h"
/* zfcp_aux.c */
-extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *,
- fcp_lun_t);
-extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *,
- wwn_t);
+extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, u64);
+extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, u64);
extern int zfcp_adapter_enqueue(struct ccw_device *);
extern void zfcp_adapter_dequeue(struct zfcp_adapter *);
-extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t, u32,
+extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32,
u32);
extern void zfcp_port_dequeue(struct zfcp_port *);
-extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t);
+extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, u64);
extern void zfcp_unit_dequeue(struct zfcp_unit *);
extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
extern void zfcp_sg_free_table(struct scatterlist *, int);
/* zfcp_ccw.c */
extern int zfcp_ccw_register(void);
+extern struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
/* zfcp_cfdc.c */
extern struct miscdevice zfcp_cfdc_misc;
struct fsf_status_read_buffer *);
extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *, unsigned int, int,
int);
+extern void zfcp_hba_dbf_event_berr(struct zfcp_adapter *,
+ struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8, void *);
extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, u8, void *);
extern void zfcp_erp_timeout_handler(unsigned long);
+extern void zfcp_erp_port_strategy_open_lookup(struct work_struct *);
/* zfcp_fc.c */
extern int zfcp_scan_ports(struct zfcp_adapter *);
extern void _zfcp_scan_ports_later(struct work_struct *);
extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
-extern int zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *);
+extern int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *);
extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
extern void zfcp_test_link(struct zfcp_port *);
+extern void zfcp_fc_nameserver_init(struct zfcp_adapter *);
/* zfcp_fsf.c */
extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
+extern int zfcp_fsf_open_wka_port(struct zfcp_wka_port *);
+extern int zfcp_fsf_close_wka_port(struct zfcp_wka_port *);
extern int zfcp_fsf_close_port(struct zfcp_erp_action *);
extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
extern int zfcp_fsf_open_unit(struct zfcp_erp_action *);
extern int zfcp_qdio_allocate(struct zfcp_adapter *);
extern void zfcp_qdio_free(struct zfcp_adapter *);
extern int zfcp_qdio_send(struct zfcp_fsf_req *);
-extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req(
- struct zfcp_fsf_req *);
-extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr(
- struct zfcp_fsf_req *);
+extern struct qdio_buffer_element *zfcp_qdio_sbale_req(struct zfcp_fsf_req *);
+extern struct qdio_buffer_element *zfcp_qdio_sbale_curr(struct zfcp_fsf_req *);
extern int zfcp_qdio_sbals_from_sg(struct zfcp_fsf_req *, unsigned long,
struct scatterlist *, int);
extern int zfcp_qdio_open(struct zfcp_adapter *);
extern struct zfcp_data zfcp_data;
extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
-extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t);
extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
extern struct fc_function_template zfcp_transport_functions;
/* zfcp_sysfs.c */
extern struct attribute_group zfcp_sysfs_unit_attrs;
extern struct attribute_group zfcp_sysfs_adapter_attrs;
-extern struct attribute_group zfcp_sysfs_ns_port_attrs;
extern struct attribute_group zfcp_sysfs_port_attrs;
extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
extern struct device_attribute *zfcp_sysfs_shost_attrs[];
struct scatterlist sg_resp[ZFCP_GPN_FT_BUFFERS];
};
+struct zfcp_fc_ns_handler_data {
+ struct completion done;
+ void (*handler)(unsigned long);
+ unsigned long handler_data;
+};
+
+static int zfcp_wka_port_get(struct zfcp_wka_port *wka_port)
+{
+ if (mutex_lock_interruptible(&wka_port->mutex))
+ return -ERESTARTSYS;
+
+ if (wka_port->status != ZFCP_WKA_PORT_ONLINE) {
+ wka_port->status = ZFCP_WKA_PORT_OPENING;
+ if (zfcp_fsf_open_wka_port(wka_port))
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ }
+
+ mutex_unlock(&wka_port->mutex);
+
+ wait_event_timeout(
+ wka_port->completion_wq,
+ wka_port->status == ZFCP_WKA_PORT_ONLINE ||
+ wka_port->status == ZFCP_WKA_PORT_OFFLINE,
+ HZ >> 1);
+
+ if (wka_port->status == ZFCP_WKA_PORT_ONLINE) {
+ atomic_inc(&wka_port->refcount);
+ return 0;
+ }
+ return -EIO;
+}
+
+static void zfcp_wka_port_offline(struct work_struct *work)
+{
+ struct delayed_work *dw = container_of(work, struct delayed_work, work);
+ struct zfcp_wka_port *wka_port =
+ container_of(dw, struct zfcp_wka_port, work);
+
+ wait_event(wka_port->completion_wq,
+ atomic_read(&wka_port->refcount) == 0);
+
+ mutex_lock(&wka_port->mutex);
+ if ((atomic_read(&wka_port->refcount) != 0) ||
+ (wka_port->status != ZFCP_WKA_PORT_ONLINE))
+ goto out;
+
+ wka_port->status = ZFCP_WKA_PORT_CLOSING;
+ if (zfcp_fsf_close_wka_port(wka_port)) {
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wake_up(&wka_port->completion_wq);
+ }
+out:
+ mutex_unlock(&wka_port->mutex);
+}
+
+static void zfcp_wka_port_put(struct zfcp_wka_port *wka_port)
+{
+ if (atomic_dec_return(&wka_port->refcount) != 0)
+ return;
+ /* wait 10 miliseconds, other reqs might pop in */
+ schedule_delayed_work(&wka_port->work, HZ / 100);
+}
+
+void zfcp_fc_nameserver_init(struct zfcp_adapter *adapter)
+{
+ struct zfcp_wka_port *wka_port = &adapter->nsp;
+
+ init_waitqueue_head(&wka_port->completion_wq);
+
+ wka_port->adapter = adapter;
+ wka_port->d_id = ZFCP_DID_DIRECTORY_SERVICE;
+
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ atomic_set(&wka_port->refcount, 0);
+ mutex_init(&wka_port->mutex);
+ INIT_DELAYED_WORK(&wka_port->work, zfcp_wka_port_offline);
+}
+
static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
struct fcp_rscn_element *elem)
{
read_lock_irqsave(&zfcp_data.config_lock, flags);
list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) {
- if (atomic_test_mask(ZFCP_STATUS_PORT_WKA, &port->status))
- continue;
/* FIXME: ZFCP_STATUS_PORT_DID_DID check is racy */
- if (!atomic_test_mask(ZFCP_STATUS_PORT_DID_DID, &port->status))
+ if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_DID_DID))
/* Try to connect to unused ports anyway. */
zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
schedule_work(&fsf_req->adapter->scan_work);
}
-static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, wwn_t wwpn)
+static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
{
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_port *port;
zfcp_fc_incoming_rscn(fsf_req);
}
-static void zfcp_ns_gid_pn_handler(unsigned long data)
+static void zfcp_fc_ns_handler(unsigned long data)
+{
+ struct zfcp_fc_ns_handler_data *compl_rec =
+ (struct zfcp_fc_ns_handler_data *) data;
+
+ if (compl_rec->handler)
+ compl_rec->handler(compl_rec->handler_data);
+
+ complete(&compl_rec->done);
+}
+
+static void zfcp_fc_ns_gid_pn_eval(unsigned long data)
{
struct zfcp_gid_pn_data *gid_pn = (struct zfcp_gid_pn_data *) data;
struct zfcp_send_ct *ct = &gid_pn->ct;
struct zfcp_port *port = gid_pn->port;
if (ct->status)
- goto out;
+ return;
if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT) {
atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status);
- goto out;
+ return;
}
/* paranoia */
if (ct_iu_req->wwpn != port->wwpn)
- goto out;
+ return;
/* looks like a valid d_id */
port->d_id = ct_iu_resp->d_id & ZFCP_DID_MASK;
atomic_set_mask(ZFCP_STATUS_PORT_DID_DID, &port->status);
-out:
- mempool_free(gid_pn, port->adapter->pool.data_gid_pn);
}
-/**
- * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
- * @erp_action: pointer to zfcp_erp_action where GID_PN request is needed
- * return: -ENOMEM on error, 0 otherwise
- */
-int zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action)
+int static zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action,
+ struct zfcp_gid_pn_data *gid_pn)
{
- int ret;
- struct zfcp_gid_pn_data *gid_pn;
struct zfcp_adapter *adapter = erp_action->adapter;
-
- gid_pn = mempool_alloc(adapter->pool.data_gid_pn, GFP_ATOMIC);
- if (!gid_pn)
- return -ENOMEM;
-
- memset(gid_pn, 0, sizeof(*gid_pn));
+ struct zfcp_fc_ns_handler_data compl_rec;
+ int ret;
/* setup parameters for send generic command */
gid_pn->port = erp_action->port;
- gid_pn->ct.port = adapter->nameserver_port;
- gid_pn->ct.handler = zfcp_ns_gid_pn_handler;
- gid_pn->ct.handler_data = (unsigned long) gid_pn;
+ gid_pn->ct.wka_port = &adapter->nsp;
+ gid_pn->ct.handler = zfcp_fc_ns_handler;
+ gid_pn->ct.handler_data = (unsigned long) &compl_rec;
gid_pn->ct.timeout = ZFCP_NS_GID_PN_TIMEOUT;
gid_pn->ct.req = &gid_pn->req;
gid_pn->ct.resp = &gid_pn->resp;
gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_MAX_SIZE;
gid_pn->ct_iu_req.wwpn = erp_action->port->wwpn;
+ init_completion(&compl_rec.done);
+ compl_rec.handler = zfcp_fc_ns_gid_pn_eval;
+ compl_rec.handler_data = (unsigned long) gid_pn;
ret = zfcp_fsf_send_ct(&gid_pn->ct, adapter->pool.fsf_req_erp,
erp_action);
+ if (!ret)
+ wait_for_completion(&compl_rec.done);
+ return ret;
+}
+
+/**
+ * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
+ * @erp_action: pointer to zfcp_erp_action where GID_PN request is needed
+ * return: -ENOMEM on error, 0 otherwise
+ */
+int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *erp_action)
+{
+ int ret;
+ struct zfcp_gid_pn_data *gid_pn;
+ struct zfcp_adapter *adapter = erp_action->adapter;
+
+ gid_pn = mempool_alloc(adapter->pool.data_gid_pn, GFP_ATOMIC);
+ if (!gid_pn)
+ return -ENOMEM;
+
+ memset(gid_pn, 0, sizeof(*gid_pn));
+
+ ret = zfcp_wka_port_get(&adapter->nsp);
if (ret)
- mempool_free(gid_pn, adapter->pool.data_gid_pn);
+ goto out;
+
+ ret = zfcp_fc_ns_gid_pn_request(erp_action, gid_pn);
+
+ zfcp_wka_port_put(&adapter->nsp);
+out:
+ mempool_free(gid_pn, adapter->pool.data_gid_pn);
return ret;
}
struct scatterlist req;
struct scatterlist resp;
struct zfcp_ls_adisc ls_adisc;
- struct zfcp_ls_adisc_acc ls_adisc_acc;
+ struct zfcp_ls_adisc ls_adisc_acc;
};
static void zfcp_fc_adisc_handler(unsigned long data)
{
struct zfcp_els_adisc *adisc = (struct zfcp_els_adisc *) data;
struct zfcp_port *port = adisc->els.port;
- struct zfcp_ls_adisc_acc *ls_adisc = &adisc->ls_adisc_acc;
+ struct zfcp_ls_adisc *ls_adisc = &adisc->ls_adisc_acc;
if (adisc->els.status) {
/* request rejected or timed out */
sg_init_one(adisc->els.req, &adisc->ls_adisc,
sizeof(struct zfcp_ls_adisc));
sg_init_one(adisc->els.resp, &adisc->ls_adisc_acc,
- sizeof(struct zfcp_ls_adisc_acc));
+ sizeof(struct zfcp_ls_adisc));
adisc->els.req_count = 1;
adisc->els.resp_count = 1;
zfcp_erp_port_forced_reopen(port, 0, 65, NULL);
}
-static int zfcp_scan_get_nameserver(struct zfcp_adapter *adapter)
-{
- int ret;
-
- if (!adapter->nameserver_port)
- return -EINTR;
-
- if (!atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
- &adapter->nameserver_port->status)) {
- ret = zfcp_erp_port_reopen(adapter->nameserver_port, 0, 148,
- NULL);
- if (ret)
- return ret;
- zfcp_erp_wait(adapter);
- }
- return !atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
- &adapter->nameserver_port->status);
-}
-
-static void zfcp_gpn_ft_handler(unsigned long _done)
-{
- complete((struct completion *)_done);
-}
-
static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft)
{
struct scatterlist *sg = &gpn_ft->sg_req;
{
struct zfcp_send_ct *ct = &gpn_ft->ct;
struct ct_iu_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
- struct completion done;
+ struct zfcp_fc_ns_handler_data compl_rec;
int ret;
/* prepare CT IU for GPN_FT */
req->fc4_type = ZFCP_CT_SCSI_FCP;
/* prepare zfcp_send_ct */
- ct->port = adapter->nameserver_port;
- ct->handler = zfcp_gpn_ft_handler;
- ct->handler_data = (unsigned long)&done;
+ ct->wka_port = &adapter->nsp;
+ ct->handler = zfcp_fc_ns_handler;
+ ct->handler_data = (unsigned long)&compl_rec;
ct->timeout = 10;
ct->req = &gpn_ft->sg_req;
ct->resp = gpn_ft->sg_resp;
ct->req_count = 1;
ct->resp_count = ZFCP_GPN_FT_BUFFERS;
- init_completion(&done);
+ init_completion(&compl_rec.done);
+ compl_rec.handler = NULL;
ret = zfcp_fsf_send_ct(ct, NULL, NULL);
if (!ret)
- wait_for_completion(&done);
+ wait_for_completion(&compl_rec.done);
return ret;
}
atomic_clear_mask(ZFCP_STATUS_COMMON_NOESC, &port->status);
- if (port == adapter->nameserver_port)
- return;
- if ((port->supported_classes != 0) || (port->units != 0)) {
+ if ((port->supported_classes != 0) ||
+ !list_empty(&port->unit_list_head)) {
zfcp_port_put(port);
return;
}
struct scatterlist *sg = gpn_ft->sg_resp;
struct ct_hdr *hdr = sg_virt(sg);
struct gpn_ft_resp_acc *acc = sg_virt(sg);
- struct zfcp_adapter *adapter = ct->port->adapter;
+ struct zfcp_adapter *adapter = ct->wka_port->adapter;
struct zfcp_port *port, *tmp;
u32 d_id;
int ret = 0, x, last = 0;
d_id = acc->port_id[0] << 16 | acc->port_id[1] << 8 |
acc->port_id[2];
+ /* don't attach ports with a well known address */
+ if ((d_id & ZFCP_DID_WKA) == ZFCP_DID_WKA)
+ continue;
/* skip the adapter's port and known remote ports */
if (acc->wwpn == fc_host_port_name(adapter->scsi_host))
continue;
if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT)
return 0;
- ret = zfcp_scan_get_nameserver(adapter);
+ ret = zfcp_wka_port_get(&adapter->nsp);
if (ret)
return ret;
gpn_ft = zfcp_alloc_sg_env();
- if (!gpn_ft)
- return -ENOMEM;
+ if (!gpn_ft) {
+ ret = -ENOMEM;
+ goto out;
+ }
for (i = 0; i < 3; i++) {
ret = zfcp_scan_issue_gpn_ft(gpn_ft, adapter);
}
}
zfcp_free_sg_env(gpn_ft);
-
+out:
+ zfcp_wka_port_put(&adapter->nsp);
return ret;
}
[FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND
};
-static const char *zfcp_act_subtable_type[] = {
- "unknown", "OS", "WWPN", "DID", "LUN"
-};
-
static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table)
{
u16 subtable = table >> 16;
u16 rule = table & 0xffff;
+ const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" };
- if (subtable && subtable < ARRAY_SIZE(zfcp_act_subtable_type))
+ if (subtable && subtable < ARRAY_SIZE(act_type))
dev_warn(&adapter->ccw_device->dev,
- "Access denied in subtable %s, rule %d.\n",
- zfcp_act_subtable_type[subtable], rule);
+ "Access denied according to ACT rule type %s, "
+ "rule %d\n", act_type[subtable], rule);
}
static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req,
{
struct fsf_qtcb_header *header = &req->qtcb->header;
dev_warn(&req->adapter->ccw_device->dev,
- "Access denied, cannot send command to port 0x%016Lx.\n",
- port->wwpn);
+ "Access denied to port 0x%016Lx\n",
+ (unsigned long long)port->wwpn);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
zfcp_erp_port_access_denied(port, 55, req);
{
struct fsf_qtcb_header *header = &req->qtcb->header;
dev_warn(&req->adapter->ccw_device->dev,
- "Access denied for unit 0x%016Lx on port 0x%016Lx.\n",
- unit->fcp_lun, unit->port->wwpn);
+ "Access denied to unit 0x%016Lx on port 0x%016Lx\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
zfcp_erp_unit_access_denied(unit, 59, req);
static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req)
{
- dev_err(&req->adapter->ccw_device->dev,
- "Required FC class not supported by adapter, "
- "shutting down adapter.\n");
+ dev_err(&req->adapter->ccw_device->dev, "FCP device not "
+ "operational because of an unsupported FC class\n");
zfcp_erp_adapter_shutdown(req->adapter, 0, 123, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
-static void zfcp_fsf_bit_error_threshold(struct zfcp_fsf_req *req)
-{
- struct zfcp_adapter *adapter = req->adapter;
- struct fsf_status_read_buffer *sr_buf = req->data;
- struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
-
- dev_warn(&adapter->ccw_device->dev,
- "Warning: bit error threshold data "
- "received for the adapter: "
- "link failures = %i, loss of sync errors = %i, "
- "loss of signal errors = %i, "
- "primitive sequence errors = %i, "
- "invalid transmission word errors = %i, "
- "CRC errors = %i).\n",
- err->link_failure_error_count,
- err->loss_of_sync_error_count,
- err->loss_of_signal_error_count,
- err->primitive_sequence_error_count,
- err->invalid_transmission_word_error_count,
- err->crc_error_count);
- dev_warn(&adapter->ccw_device->dev,
- "Additional bit error threshold data of the adapter: "
- "primitive sequence event time-outs = %i, "
- "elastic buffer overrun errors = %i, "
- "advertised receive buffer-to-buffer credit = %i, "
- "current receice buffer-to-buffer credit = %i, "
- "advertised transmit buffer-to-buffer credit = %i, "
- "current transmit buffer-to-buffer credit = %i).\n",
- err->primitive_sequence_event_timeout_count,
- err->elastic_buffer_overrun_error_count,
- err->advertised_receive_b2b_credit,
- err->current_receive_b2b_credit,
- err->advertised_transmit_b2b_credit,
- err->current_transmit_b2b_credit);
-}
-
static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id,
struct fsf_link_down_info *link_down)
{
switch (link_down->error_code) {
case FSF_PSQ_LINK_NO_LIGHT:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: no light detected.\n");
+ "There is no light signal from the local "
+ "fibre channel cable\n");
break;
case FSF_PSQ_LINK_WRAP_PLUG:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: wrap plug detected.\n");
+ "There is a wrap plug instead of a fibre "
+ "channel cable\n");
break;
case FSF_PSQ_LINK_NO_FCP:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "adjacent node on link does not support FCP.\n");
+ "The adjacent fibre channel node does not "
+ "support FCP\n");
break;
case FSF_PSQ_LINK_FIRMWARE_UPDATE:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "firmware update in progress.\n");
+ "The FCP device is suspended because of a "
+ "firmware update\n");
break;
case FSF_PSQ_LINK_INVALID_WWPN:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "duplicate or invalid WWPN detected.\n");
+ "The FCP device detected a WWPN that is "
+ "duplicate or not valid\n");
break;
case FSF_PSQ_LINK_NO_NPIV_SUPPORT:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "no support for NPIV by Fabric.\n");
+ "The fibre channel fabric does not support NPIV\n");
break;
case FSF_PSQ_LINK_NO_FCP_RESOURCES:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "out of resource in FCP daughtercard.\n");
+ "The FCP adapter cannot support more NPIV ports\n");
break;
case FSF_PSQ_LINK_NO_FABRIC_RESOURCES:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "out of resource in Fabric.\n");
+ "The adjacent switch cannot support "
+ "more NPIV ports\n");
break;
case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link is down: "
- "unable to login to Fabric.\n");
+ "The FCP adapter could not log in to the "
+ "fibre channel fabric\n");
break;
case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED:
dev_warn(&req->adapter->ccw_device->dev,
- "WWPN assignment file corrupted on adapter.\n");
+ "The WWPN assignment file on the FCP adapter "
+ "has been damaged\n");
break;
case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED:
dev_warn(&req->adapter->ccw_device->dev,
- "Mode table corrupted on adapter.\n");
+ "The mode table on the FCP adapter "
+ "has been damaged\n");
break;
case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT:
dev_warn(&req->adapter->ccw_device->dev,
- "No WWPN for assignment table on adapter.\n");
+ "All NPIV ports on the FCP adapter have "
+ "been assigned\n");
break;
default:
dev_warn(&req->adapter->ccw_device->dev,
- "The local link to adapter is down.\n");
+ "The link between the FCP adapter and "
+ "the FC fabric is down\n");
}
out:
zfcp_erp_adapter_failed(adapter, id, req);
static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req)
{
- struct zfcp_adapter *adapter = req->adapter;
struct fsf_status_read_buffer *sr_buf = req->data;
struct fsf_link_down_info *ldi =
(struct fsf_link_down_info *) &sr_buf->payload;
switch (sr_buf->status_subtype) {
case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
- dev_warn(&adapter->ccw_device->dev,
- "Physical link is down.\n");
zfcp_fsf_link_down_info_eval(req, 38, ldi);
break;
case FSF_STATUS_READ_SUB_FDISC_FAILED:
- dev_warn(&adapter->ccw_device->dev,
- "Local link is down "
- "due to failed FDISC login.\n");
zfcp_fsf_link_down_info_eval(req, 39, ldi);
break;
case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
- dev_warn(&adapter->ccw_device->dev,
- "Local link is down "
- "due to firmware update on adapter.\n");
zfcp_fsf_link_down_info_eval(req, 40, NULL);
};
}
case FSF_STATUS_READ_SENSE_DATA_AVAIL:
break;
case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
- zfcp_fsf_bit_error_threshold(req);
+ dev_warn(&adapter->ccw_device->dev,
+ "The error threshold for checksum statistics "
+ "has been exceeded\n");
+ zfcp_hba_dbf_event_berr(adapter, req);
break;
case FSF_STATUS_READ_LINK_DOWN:
zfcp_fsf_status_read_link_down(req);
break;
case FSF_STATUS_READ_LINK_UP:
dev_info(&adapter->ccw_device->dev,
- "Local link was replugged.\n");
+ "The local link has been restored\n");
/* All ports should be marked as ready to run again */
zfcp_erp_modify_adapter_status(adapter, 30, NULL,
ZFCP_STATUS_COMMON_RUNNING,
zfcp_fsf_req_free(req);
atomic_inc(&adapter->stat_miss);
- schedule_work(&adapter->stat_work);
+ queue_work(zfcp_data.work_queue, &adapter->stat_work);
}
static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
break;
case FSF_SQ_NO_RECOM:
dev_err(&req->adapter->ccw_device->dev,
- "No recommendation could be given for a "
- "problem on the adapter.\n");
+ "The FCP adapter reported a problem "
+ "that cannot be recovered\n");
zfcp_erp_adapter_shutdown(req->adapter, 0, 121, req);
break;
}
switch (req->qtcb->header.fsf_status) {
case FSF_UNKNOWN_COMMAND:
dev_err(&req->adapter->ccw_device->dev,
- "Command issued by the device driver (0x%x) is "
- "not known by the adapter.\n",
+ "The FCP adapter does not recognize the command 0x%x\n",
req->qtcb->header.fsf_command);
zfcp_erp_adapter_shutdown(req->adapter, 0, 120, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
return;
case FSF_PROT_QTCB_VERSION_ERROR:
dev_err(&adapter->ccw_device->dev,
- "The QTCB version requested by zfcp (0x%x) is not "
- "supported by the FCP adapter (lowest supported "
- "0x%x, highest supported 0x%x).\n",
- FSF_QTCB_CURRENT_VERSION, psq->word[0],
- psq->word[1]);
+ "QTCB version 0x%x not supported by FCP adapter "
+ "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION,
+ psq->word[0], psq->word[1]);
zfcp_erp_adapter_shutdown(adapter, 0, 117, req);
break;
case FSF_PROT_ERROR_STATE:
break;
case FSF_PROT_UNSUPP_QTCB_TYPE:
dev_err(&adapter->ccw_device->dev,
- "Packet header type used by the device driver is "
- "incompatible with that used on the adapter.\n");
+ "The QTCB type is not supported by the FCP adapter\n");
zfcp_erp_adapter_shutdown(adapter, 0, 118, req);
break;
case FSF_PROT_HOST_CONNECTION_INITIALIZING:
break;
case FSF_PROT_DUPLICATE_REQUEST_ID:
dev_err(&adapter->ccw_device->dev,
- "The request identifier 0x%Lx is ambiguous.\n",
+ "0x%Lx is an ambiguous request identifier\n",
(unsigned long long)qtcb->bottom.support.req_handle);
zfcp_erp_adapter_shutdown(adapter, 0, 78, req);
break;
break;
default:
dev_err(&adapter->ccw_device->dev,
- "Transfer protocol status information"
- "provided by the adapter (0x%x) "
- "is not compatible with the device driver.\n",
+ "0x%x is not a valid transfer protocol status\n",
qtcb->prefix.prot_status);
zfcp_erp_adapter_shutdown(adapter, 0, 119, req);
}
adapter->peer_wwpn = bottom->plogi_payload.wwpn;
adapter->peer_wwnn = bottom->plogi_payload.wwnn;
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
- if (req->erp_action)
- dev_info(&adapter->ccw_device->dev,
- "Point-to-Point fibrechannel "
- "configuration detected.\n");
break;
case FSF_TOPO_FABRIC:
fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
- if (req->erp_action)
- dev_info(&adapter->ccw_device->dev,
- "Switched fabric fibrechannel "
- "network detected.\n");
break;
case FSF_TOPO_AL:
fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
- dev_err(&adapter->ccw_device->dev,
- "Unsupported arbitrated loop fibrechannel "
- "topology detected, shutting down "
- "adapter.\n");
- zfcp_erp_adapter_shutdown(adapter, 0, 127, req);
- return -EIO;
default:
- fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
dev_err(&adapter->ccw_device->dev,
- "The fibrechannel topology reported by the"
- " adapter is not known by the zfcp driver,"
- " shutting down adapter.\n");
- zfcp_erp_adapter_shutdown(adapter, 0, 128, req);
+ "Unknown or unsupported arbitrated loop "
+ "fibre channel topology detected\n");
+ zfcp_erp_adapter_shutdown(adapter, 0, 127, req);
return -EIO;
}
if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) {
dev_err(&adapter->ccw_device->dev,
- "Maximum QTCB size (%d bytes) allowed by "
- "the adapter is lower than the minimum "
- "required by the driver (%ld bytes).\n",
- bottom->max_qtcb_size,
- sizeof(struct fsf_qtcb));
+ "FCP adapter maximum QTCB size (%d bytes) "
+ "is too small\n",
+ bottom->max_qtcb_size);
zfcp_erp_adapter_shutdown(adapter, 0, 129, req);
return;
}
if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) {
dev_err(&adapter->ccw_device->dev,
- "The adapter only supports newer control block "
- "versions, try updated device driver.\n");
+ "The FCP adapter only supports newer "
+ "control block versions\n");
zfcp_erp_adapter_shutdown(adapter, 0, 125, req);
return;
}
if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) {
dev_err(&adapter->ccw_device->dev,
- "The adapter only supports older control block "
- "versions, consider a microcode upgrade.\n");
+ "The FCP adapter only supports older "
+ "control block versions\n");
zfcp_erp_adapter_shutdown(adapter, 0, 126, req);
}
}
static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
{
- struct zfcp_adapter *adapter = req->adapter;
struct fsf_qtcb *qtcb = req->qtcb;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
switch (qtcb->header.fsf_status) {
case FSF_GOOD:
zfcp_fsf_exchange_port_evaluate(req);
- atomic_set_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
break;
case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE:
zfcp_fsf_exchange_port_evaluate(req);
- atomic_set_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
zfcp_fsf_link_down_info_eval(req, 43,
&qtcb->header.fsf_status_qual.link_down_info);
break;
}
}
-static int zfcp_fsf_sbal_check(struct zfcp_qdio_queue *queue)
+static int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter)
{
- spin_lock_bh(&queue->lock);
- if (atomic_read(&queue->count))
+ struct zfcp_qdio_queue *req_q = &adapter->req_q;
+
+ spin_lock_bh(&adapter->req_q_lock);
+ if (atomic_read(&req_q->count))
return 1;
- spin_unlock_bh(&queue->lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return 0;
}
+static int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter)
+{
+ unsigned int count = atomic_read(&adapter->req_q.count);
+ if (!count)
+ atomic_inc(&adapter->qdio_outb_full);
+ return count > 0;
+}
+
static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
{
long ret;
- struct zfcp_qdio_queue *req_q = &adapter->req_q;
- spin_unlock_bh(&req_q->lock);
+ spin_unlock_bh(&adapter->req_q_lock);
ret = wait_event_interruptible_timeout(adapter->request_wq,
- zfcp_fsf_sbal_check(req_q), 5 * HZ);
+ zfcp_fsf_sbal_check(adapter), 5 * HZ);
if (ret > 0)
return 0;
+ if (!ret)
+ atomic_inc(&adapter->qdio_outb_full);
- spin_lock_bh(&req_q->lock);
+ spin_lock_bh(&adapter->req_q_lock);
return -EIO;
}
u32 fsf_cmd, int req_flags,
mempool_t *pool)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req;
struct zfcp_qdio_queue *req_q = &adapter->req_q;
{
struct zfcp_fsf_req *req;
struct fsf_status_read_buffer *sr_buf;
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
zfcp_fsf_req_free(req);
zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL);
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
struct zfcp_unit *unit,
int req_flags)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
- spin_lock(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND,
req_flags, adapter->pool.fsf_req_abort);
zfcp_fsf_req_free(req);
req = NULL;
out:
- spin_unlock(&adapter->req_q.lock);
+ spin_unlock(&adapter->req_q_lock);
return req;
}
{
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_send_ct *send_ct = req->data;
- struct zfcp_port *port = send_ct->port;
struct fsf_qtcb_header *header = &req->qtcb->header;
send_ct->status = -EINVAL;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]){
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
- zfcp_test_link(port);
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
}
break;
case FSF_ACCESS_DENIED:
- zfcp_fsf_access_denied_port(req, port);
break;
case FSF_PORT_BOXED:
- zfcp_erp_port_boxed(port, 49, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
struct zfcp_erp_action *erp_action)
{
- struct zfcp_port *port = ct->port;
- struct zfcp_adapter *adapter = port->adapter;
+ struct zfcp_wka_port *wka_port = ct->wka_port;
+ struct zfcp_adapter *adapter = wka_port->adapter;
struct zfcp_fsf_req *req;
int ret = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
goto failed_send;
req->handler = zfcp_fsf_send_ct_handler;
- req->qtcb->header.port_handle = port->handle;
+ req->qtcb->header.port_handle = wka_port->handle;
req->qtcb->bottom.support.service_class = FSF_CLASS_3;
req->qtcb->bottom.support.timeout = ct->timeout;
req->data = ct;
if (erp_action)
erp_action->fsf_req = NULL;
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return ret;
}
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
- spin_lock(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS,
ZFCP_REQ_AUTO_CLEANUP, NULL);
goto out;
}
- ret = zfcp_fsf_setup_sbals(req, els->req, els->resp,
- FSF_MAX_SBALS_PER_ELS_REQ);
+ ret = zfcp_fsf_setup_sbals(req, els->req, els->resp, 2);
+
if (ret)
goto failed_send;
failed_send:
zfcp_fsf_req_free(req);
out:
- spin_unlock(&adapter->req_q.lock);
+ spin_unlock(&adapter->req_q_lock);
return ret;
}
int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req;
struct zfcp_adapter *adapter = erp_action->adapter;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock_bh(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter,
FSF_QTCB_EXCHANGE_CONFIG_DATA,
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
struct fsf_qtcb_bottom_config *data)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
if (!retval)
wait_event(req->completion_wq,
req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
*/
int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req;
struct zfcp_adapter *adapter = erp_action->adapter;
int retval = -EIO;
if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
return -EOPNOTSUPP;
- spin_lock_bh(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock_bh(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
ZFCP_REQ_AUTO_CLEANUP,
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
struct fsf_qtcb_bottom_port *data)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
return -EOPNOTSUPP;
- spin_lock_bh(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock_bh(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0,
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
if (!retval)
wait_event(req->completion_wq,
req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
struct fsf_plogi *plogi;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
- goto skip_fsfstatus;
+ return;
switch (header->fsf_status) {
case FSF_PORT_ALREADY_OPEN:
break;
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
dev_warn(&req->adapter->ccw_device->dev,
- "The adapter is out of resources. The remote port "
- "0x%016Lx could not be opened, disabling it.\n",
- port->wwpn);
+ "Not enough FCP adapter resources to open "
+ "remote port 0x%016Lx\n",
+ (unsigned long long)port->wwpn);
zfcp_erp_port_failed(port, 31, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
break;
case FSF_SQ_NO_RETRY_POSSIBLE:
dev_warn(&req->adapter->ccw_device->dev,
- "The remote port 0x%016Lx could not be "
- "opened. Disabling it.\n", port->wwpn);
+ "Remote port 0x%016Lx could not be opened\n",
+ (unsigned long long)port->wwpn);
zfcp_erp_port_failed(port, 32, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
* another GID_PN straight after a port has been opened.
* Alternately, an ADISC/PDISC ELS should suffice, as well.
*/
- if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN)
- break;
-
plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els;
if (req->qtcb->bottom.support.els1_length >= sizeof(*plogi)) {
if (plogi->serv_param.wwpn != port->wwpn)
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
}
-
-skip_fsfstatus:
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING, &port->status);
}
/**
*/
int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req->data = erp_action->port;
req->erp_action = erp_action;
erp_action->fsf_req = req;
- atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &erp_action->port->status);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
struct zfcp_port *port = req->data;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
- goto skip_fsfstatus;
+ return;
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
ZFCP_CLEAR);
break;
}
-
-skip_fsfstatus:
- atomic_clear_mask(ZFCP_STATUS_COMMON_CLOSING, &port->status);
}
/**
*/
int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req->erp_action = erp_action;
req->qtcb->header.port_handle = erp_action->port->handle;
erp_action->fsf_req = req;
- atomic_set_mask(ZFCP_STATUS_COMMON_CLOSING, &erp_action->port->status);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
+ return retval;
+}
+
+static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
+{
+ struct zfcp_wka_port *wka_port = req->data;
+ struct fsf_qtcb_header *header = &req->qtcb->header;
+
+ if (req->status & ZFCP_STATUS_FSFREQ_ERROR) {
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ goto out;
+ }
+
+ switch (header->fsf_status) {
+ case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
+ dev_warn(&req->adapter->ccw_device->dev,
+ "Opening WKA port 0x%x failed\n", wka_port->d_id);
+ case FSF_ADAPTER_STATUS_AVAILABLE:
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+ case FSF_ACCESS_DENIED:
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ break;
+ case FSF_PORT_ALREADY_OPEN:
+ case FSF_GOOD:
+ wka_port->handle = header->port_handle;
+ wka_port->status = ZFCP_WKA_PORT_ONLINE;
+ }
+out:
+ wake_up(&wka_port->completion_wq);
+}
+
+/**
+ * zfcp_fsf_open_wka_port - create and send open wka-port request
+ * @wka_port: pointer to struct zfcp_wka_port
+ * Returns: 0 on success, error otherwise
+ */
+int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
+{
+ struct qdio_buffer_element *sbale;
+ struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_fsf_req *req;
+ int retval = -EIO;
+
+ spin_lock_bh(&adapter->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(adapter))
+ goto out;
+
+ req = zfcp_fsf_req_create(adapter,
+ FSF_QTCB_OPEN_PORT_WITH_DID,
+ ZFCP_REQ_AUTO_CLEANUP,
+ adapter->pool.fsf_req_erp);
+ if (unlikely(IS_ERR(req))) {
+ retval = PTR_ERR(req);
+ goto out;
+ }
+
+ sbale = zfcp_qdio_sbale_req(req);
+ sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
+ sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
+
+ req->handler = zfcp_fsf_open_wka_port_handler;
+ req->qtcb->bottom.support.d_id = wka_port->d_id;
+ req->data = wka_port;
+
+ zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
+ retval = zfcp_fsf_req_send(req);
+ if (retval)
+ zfcp_fsf_req_free(req);
+out:
+ spin_unlock_bh(&adapter->req_q_lock);
+ return retval;
+}
+
+static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
+{
+ struct zfcp_wka_port *wka_port = req->data;
+
+ if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+ zfcp_erp_adapter_reopen(wka_port->adapter, 0, 84, req);
+ }
+
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wake_up(&wka_port->completion_wq);
+}
+
+/**
+ * zfcp_fsf_close_wka_port - create and send close wka port request
+ * @erp_action: pointer to struct zfcp_erp_action
+ * Returns: 0 on success, error otherwise
+ */
+int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
+{
+ struct qdio_buffer_element *sbale;
+ struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_fsf_req *req;
+ int retval = -EIO;
+
+ spin_lock_bh(&adapter->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(adapter))
+ goto out;
+
+ req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
+ ZFCP_REQ_AUTO_CLEANUP,
+ adapter->pool.fsf_req_erp);
+ if (unlikely(IS_ERR(req))) {
+ retval = PTR_ERR(req);
+ goto out;
+ }
+
+ sbale = zfcp_qdio_sbale_req(req);
+ sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
+ sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
+
+ req->handler = zfcp_fsf_close_wka_port_handler;
+ req->data = wka_port;
+ req->qtcb->header.port_handle = wka_port->handle;
+
+ zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
+ retval = zfcp_fsf_req_send(req);
+ if (retval)
+ zfcp_fsf_req_free(req);
+out:
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
*/
int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
int exclusive, readwrite;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
- goto skip_fsfstatus;
+ return;
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_COMMON_ACCESS_BOXED |
case FSF_LUN_SHARING_VIOLATION:
if (header->fsf_status_qual.word[0])
dev_warn(&adapter->ccw_device->dev,
- "FCP-LUN 0x%Lx at the remote port "
- "with WWPN 0x%Lx "
- "connected to the adapter "
- "is already in use in LPAR%d, CSS%d.\n",
- unit->fcp_lun,
- unit->port->wwpn,
- queue_designator->hla,
- queue_designator->cssid);
+ "LUN 0x%Lx on port 0x%Lx is already in "
+ "use by CSS%d, MIF Image ID %x\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn,
+ queue_designator->cssid,
+ queue_designator->hla);
else
zfcp_act_eval_err(adapter,
header->fsf_status_qual.word[2]);
break;
case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED:
dev_warn(&adapter->ccw_device->dev,
- "The adapter ran out of resources. There is no "
- "handle available for unit 0x%016Lx on port 0x%016Lx.",
- unit->fcp_lun, unit->port->wwpn);
+ "No handle is available for LUN "
+ "0x%016Lx on port 0x%016Lx\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 34, req);
/* fall through */
case FSF_INVALID_COMMAND_OPTION:
atomic_set_mask(ZFCP_STATUS_UNIT_READONLY,
&unit->status);
dev_info(&adapter->ccw_device->dev,
- "Read-only access for unit 0x%016Lx "
- "on port 0x%016Lx.\n",
- unit->fcp_lun, unit->port->wwpn);
+ "SCSI device at LUN 0x%016Lx on port "
+ "0x%016Lx opened read-only\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
}
if (exclusive && !readwrite) {
dev_err(&adapter->ccw_device->dev,
- "Exclusive access of read-only unit "
- "0x%016Lx on port 0x%016Lx not "
- "supported, disabling unit.\n",
- unit->fcp_lun, unit->port->wwpn);
+ "Exclusive read-only access not "
+ "supported (unit 0x%016Lx, "
+ "port 0x%016Lx)\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 35, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
zfcp_erp_unit_shutdown(unit, 0, 80, req);
} else if (!exclusive && readwrite) {
dev_err(&adapter->ccw_device->dev,
- "Shared access of read-write unit "
- "0x%016Lx on port 0x%016Lx not "
- "supported, disabling unit.\n",
- unit->fcp_lun, unit->port->wwpn);
+ "Shared read-write access not "
+ "supported (unit 0x%016Lx, port "
+ "0x%016Lx\n)",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 36, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
zfcp_erp_unit_shutdown(unit, 0, 81, req);
}
break;
}
-
-skip_fsfstatus:
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING, &unit->status);
}
/**
*/
int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE))
req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING;
- atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &erp_action->unit->status);
-
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
struct zfcp_unit *unit = req->data;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
- goto skip_fsfstatus;
+ return;
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status);
break;
}
-skip_fsfstatus:
- atomic_clear_mask(ZFCP_STATUS_COMMON_CLOSING, &unit->status);
}
/**
*/
int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN,
req->data = erp_action->unit;
req->erp_action = erp_action;
erp_action->fsf_req = req;
- atomic_set_mask(ZFCP_STATUS_COMMON_CLOSING, &erp_action->unit->status);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
break;
case FSF_DIRECTION_INDICATOR_NOT_VALID:
dev_err(&req->adapter->ccw_device->dev,
- "Invalid data direction (%d) given for unit "
- "0x%016Lx on port 0x%016Lx, shutting down "
- "adapter.\n",
+ "Incorrect direction %d, unit 0x%016Lx on port "
+ "0x%016Lx closed\n",
req->qtcb->bottom.io.data_direction,
- unit->fcp_lun, unit->port->wwpn);
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 133, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_CMND_LENGTH_NOT_VALID:
dev_err(&req->adapter->ccw_device->dev,
- "An invalid control-data-block length field (%d) "
- "was found in a command for unit 0x%016Lx on port "
- "0x%016Lx. Shutting down adapter.\n",
+ "Incorrect CDB length %d, unit 0x%016Lx on "
+ "port 0x%016Lx closed\n",
req->qtcb->bottom.io.fcp_cmnd_length,
- unit->fcp_lun, unit->port->wwpn);
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 134, req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
}
}
+static void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl)
+{
+ u32 *fcp_dl_ptr;
+
+ /*
+ * fcp_dl_addr = start address of fcp_cmnd structure +
+ * size of fixed part + size of dynamically sized add_dcp_cdb field
+ * SEE FCP-2 documentation
+ */
+ fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] +
+ (fcp_cmd->add_fcp_cdb_length << 2));
+ *fcp_dl_ptr = fcp_dl;
+}
+
/**
* zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command)
* @adapter: adapter where scsi command is issued
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
- spin_lock(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags,
adapter->pool.fsf_req_scsi);
memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
- fcp_cmnd_iu->add_fcp_cdb_length + sizeof(fcp_dl_t);
+ fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32);
real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype,
scsi_sglist(scsi_cmnd),
retval = -EIO;
else {
dev_err(&adapter->ccw_device->dev,
- "SCSI request too large. "
- "Shutting down unit 0x%016Lx on port "
- "0x%016Lx.\n", unit->fcp_lun,
- unit->port->wwpn);
+ "Oversize data package, unit 0x%016Lx "
+ "on port 0x%016Lx closed\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_unit_shutdown(unit, 0, 131, req);
retval = -EINVAL;
}
zfcp_fsf_req_free(req);
scsi_cmnd->host_scribble = NULL;
out:
- spin_unlock(&adapter->req_q.lock);
+ spin_unlock(&adapter->req_q_lock);
return retval;
}
struct zfcp_unit *unit,
u8 tm_flags, int req_flags)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
struct fcp_cmnd_iu *fcp_cmnd_iu;
ZFCP_STATUS_COMMON_UNBLOCKED)))
return NULL;
- spin_lock(&adapter->req_q.lock);
- if (!atomic_read(&adapter->req_q.count))
+ spin_lock(&adapter->req_q_lock);
+ if (!zfcp_fsf_sbal_available(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags,
adapter->pool.fsf_req_scsi);
req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND;
req->qtcb->bottom.io.service_class = FSF_CLASS_3;
req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
- sizeof(fcp_dl_t);
+ sizeof(u32);
sbale = zfcp_qdio_sbale_req(req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE;
zfcp_fsf_req_free(req);
req = NULL;
out:
- spin_unlock(&adapter->req_q.lock);
+ spin_unlock(&adapter->req_q_lock);
return req;
}
struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
struct zfcp_fsf_cfdc *fsf_cfdc)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
struct fsf_qtcb_bottom_support *bottom;
int direction, retval = -EIO, bytes;
return ERR_PTR(-EINVAL);
}
- spin_lock_bh(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
- spin_unlock_bh(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
if (!retval) {
wait_event(req->completion_wq,
#define FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED 0x00000041
#define FSF_ELS_COMMAND_REJECTED 0x00000050
#define FSF_GENERIC_COMMAND_REJECTED 0x00000051
-#define FSF_OPERATION_PARTIALLY_SUCCESSFUL 0x00000052
-#define FSF_AUTHORIZATION_FAILURE 0x00000053
-#define FSF_CFDC_ERROR_DETECTED 0x00000054
-#define FSF_CONTROL_FILE_UPDATE_ERROR 0x00000055
-#define FSF_CONTROL_FILE_TOO_LARGE 0x00000056
-#define FSF_ACCESS_CONFLICT_DETECTED 0x00000057
-#define FSF_CONFLICTS_OVERRULED 0x00000058
#define FSF_PORT_BOXED 0x00000059
#define FSF_LUN_BOXED 0x0000005A
#define FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE 0x0000005B
#define FSF_REQUEST_SIZE_TOO_LARGE 0x00000061
#define FSF_RESPONSE_SIZE_TOO_LARGE 0x00000062
#define FSF_SBAL_MISMATCH 0x00000063
-#define FSF_OPEN_PORT_WITHOUT_PRLI 0x00000064
#define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD
-#define FSF_FCP_RSP_AVAILABLE 0x000000AF
#define FSF_UNKNOWN_COMMAND 0x000000E2
#define FSF_UNKNOWN_OP_SUBTYPE 0x000000E3
#define FSF_INVALID_COMMAND_OPTION 0x000000E5
#define FSF_SQ_RETRY_IF_POSSIBLE 0x02
#define FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED 0x03
#define FSF_SQ_INVOKE_LINK_TEST_PROCEDURE 0x04
-#define FSF_SQ_ULP_PROGRAMMING_ERROR 0x05
#define FSF_SQ_COMMAND_ABORTED 0x06
#define FSF_SQ_NO_RETRY_POSSIBLE 0x07
-/* FSF status qualifier for CFDC commands */
-#define FSF_SQ_CFDC_HARDENED_ON_SE 0x00000000
-#define FSF_SQ_CFDC_COULD_NOT_HARDEN_ON_SE 0x00000001
-#define FSF_SQ_CFDC_COULD_NOT_HARDEN_ON_SE2 0x00000002
-/* CFDC subtable codes */
-#define FSF_SQ_CFDC_SUBTABLE_OS 0x0001
-#define FSF_SQ_CFDC_SUBTABLE_PORT_WWPN 0x0002
-#define FSF_SQ_CFDC_SUBTABLE_PORT_DID 0x0003
-#define FSF_SQ_CFDC_SUBTABLE_LUN 0x0004
-
/* FSF status qualifier (most significant 4 bytes), local link down */
#define FSF_PSQ_LINK_NO_LIGHT 0x00000004
#define FSF_PSQ_LINK_WRAP_PLUG 0x00000008
#define FSF_STATUS_READ_LINK_UP 0x00000006
#define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009
#define FSF_STATUS_READ_CFDC_UPDATED 0x0000000A
-#define FSF_STATUS_READ_CFDC_HARDENED 0x0000000B
#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C
/* status subtypes in status read buffer */
/* status subtypes for unsolicited status notification lost */
#define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001
-#define FSF_STATUS_READ_SUB_SENSE_DATA 0x00000002
-#define FSF_STATUS_READ_SUB_LINK_STATUS 0x00000004
-#define FSF_STATUS_READ_SUB_PORT_CLOSED 0x00000008
-#define FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD 0x00000010
#define FSF_STATUS_READ_SUB_ACT_UPDATED 0x00000020
-#define FSF_STATUS_READ_SUB_ACT_HARDENED 0x00000040
-#define FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT 0x00000080
-
-/* status subtypes for CFDC */
-#define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE 0x00000002
-#define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE2 0x0000000F
/* topologie that is detected by the adapter */
-#define FSF_TOPO_ERROR 0x00000000
#define FSF_TOPO_P2P 0x00000001
#define FSF_TOPO_FABRIC 0x00000002
#define FSF_TOPO_AL 0x00000003
/* data direction for FCP commands */
#define FSF_DATADIR_WRITE 0x00000001
#define FSF_DATADIR_READ 0x00000002
-#define FSF_DATADIR_READ_WRITE 0x00000003
#define FSF_DATADIR_CMND 0x00000004
/* fc service class */
-#define FSF_CLASS_1 0x00000001
-#define FSF_CLASS_2 0x00000002
#define FSF_CLASS_3 0x00000003
/* SBAL chaining */
#define FSF_MAX_SBALS_PER_REQ 36
-#define FSF_MAX_SBALS_PER_ELS_REQ 2
/* logging space behind QTCB */
#define FSF_QTCB_LOG_SIZE 1024
#define FSF_FEATURE_LUN_SHARING 0x00000004
#define FSF_FEATURE_NOTIFICATION_LOST 0x00000008
#define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010
-#define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020
#define FSF_FEATURE_UPDATE_ALERT 0x00000100
#define FSF_FEATURE_MEASUREMENT_DATA 0x00000200
/* host connection features */
#define FSF_FEATURE_NPIV_MODE 0x00000001
-#define FSF_FEATURE_VM_ASSIGNED_WWPN 0x00000002
/* option */
#define FSF_OPEN_LUN_SUPPRESS_BOXING 0x00000001
-#define FSF_OPEN_LUN_REPLICATE_SENSE 0x00000002
-
-/* adapter types */
-#define FSF_ADAPTER_TYPE_FICON 0x00000001
-#define FSF_ADAPTER_TYPE_FICON_EXPRESS 0x00000002
-
-/* port types */
-#define FSF_HBA_PORTTYPE_UNKNOWN 0x00000001
-#define FSF_HBA_PORTTYPE_NOTPRESENT 0x00000003
-#define FSF_HBA_PORTTYPE_NPORT 0x00000005
-#define FSF_HBA_PORTTYPE_PTP 0x00000021
-/* following are not defined and used by FSF Spec
- but are additionally defined by FC-HBA */
-#define FSF_HBA_PORTTYPE_OTHER 0x00000002
-#define FSF_HBA_PORTTYPE_NOTPRESENT 0x00000003
-#define FSF_HBA_PORTTYPE_NLPORT 0x00000006
-#define FSF_HBA_PORTTYPE_FLPORT 0x00000007
-#define FSF_HBA_PORTTYPE_FPORT 0x00000008
-#define FSF_HBA_PORTTYPE_LPORT 0x00000020
-
-/* port states */
-#define FSF_HBA_PORTSTATE_UNKNOWN 0x00000001
-#define FSF_HBA_PORTSTATE_ONLINE 0x00000002
-#define FSF_HBA_PORTSTATE_OFFLINE 0x00000003
-#define FSF_HBA_PORTSTATE_LINKDOWN 0x00000006
-#define FSF_HBA_PORTSTATE_ERROR 0x00000007
-
-/* IO states of adapter */
-#define FSF_IOSTAT_NPORT_RJT 0x00000004
-#define FSF_IOSTAT_FABRIC_RJT 0x00000005
-#define FSF_IOSTAT_LS_RJT 0x00000009
/* open LUN access flags*/
-#define FSF_UNIT_ACCESS_OPEN_LUN_ALLOWED 0x01000000
#define FSF_UNIT_ACCESS_EXCLUSIVE 0x02000000
#define FSF_UNIT_ACCESS_OUTBOUND_TRANSFER 0x10000000
u32 res1;
} __attribute__ ((packed));
-struct fsf_port_closed_payload {
- struct fsf_queue_designator queue_designator;
- u32 port_handle;
-} __attribute__ ((packed));
-
struct fsf_bit_error_payload {
u32 res1;
u32 link_failure_error_count;
return 0;
}
-static volatile struct qdio_buffer_element *
+static struct qdio_buffer_element *
zfcp_qdio_sbale(struct zfcp_qdio_queue *q, int sbal_idx, int sbale_idx)
{
return &q->sbal[sbal_idx]->element[sbale_idx];
static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, u8 id)
{
- dev_warn(&adapter->ccw_device->dev, "QDIO problem occurred.\n");
+ dev_warn(&adapter->ccw_device->dev, "A QDIO problem occurred\n");
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) parm;
struct zfcp_qdio_queue *queue = &adapter->resp_q;
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
int sbal_idx, sbale_idx, sbal_no;
if (unlikely(qdio_err)) {
if (unlikely(!(sbale->flags & SBAL_FLAGS_LAST_ENTRY)))
dev_warn(&adapter->ccw_device->dev,
- "Protocol violation by adapter. "
- "Continuing operations.\n");
+ "A QDIO protocol error occurred, "
+ "operations continue\n");
}
/*
* @fsf_req: pointer to struct fsf_req
* Returns: pointer to qdio_buffer_element (SBALE) structure
*/
-volatile struct qdio_buffer_element *
-zfcp_qdio_sbale_req(struct zfcp_fsf_req *req)
+struct qdio_buffer_element *zfcp_qdio_sbale_req(struct zfcp_fsf_req *req)
{
return zfcp_qdio_sbale(&req->adapter->req_q, req->sbal_last, 0);
}
* @fsf_req: pointer to struct fsf_req
* Returns: pointer to qdio_buffer_element (SBALE) structure
*/
-volatile struct qdio_buffer_element *
-zfcp_qdio_sbale_curr(struct zfcp_fsf_req *req)
+struct qdio_buffer_element *zfcp_qdio_sbale_curr(struct zfcp_fsf_req *req)
{
return zfcp_qdio_sbale(&req->adapter->req_q, req->sbal_last,
req->sbale_curr);
% QDIO_MAX_BUFFERS_PER_Q;
}
-static volatile struct qdio_buffer_element *
+static struct qdio_buffer_element *
zfcp_qdio_sbal_chain(struct zfcp_fsf_req *fsf_req, unsigned long sbtype)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
/* set last entry flag in current SBALE of current SBAL */
sbale = zfcp_qdio_sbale_curr(fsf_req);
return sbale;
}
-static volatile struct qdio_buffer_element *
+static struct qdio_buffer_element *
zfcp_qdio_sbale_next(struct zfcp_fsf_req *fsf_req, unsigned long sbtype)
{
if (fsf_req->sbale_curr == ZFCP_LAST_SBALE_PER_SBAL)
unsigned int sbtype, void *start_addr,
unsigned int total_length)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
unsigned long remaining, length;
void *addr;
addr += length, remaining -= length) {
sbale = zfcp_qdio_sbale_next(fsf_req, sbtype);
if (!sbale) {
+ atomic_inc(&fsf_req->adapter->qdio_outb_full);
zfcp_qdio_undo_sbals(fsf_req);
return -EINVAL;
}
int zfcp_qdio_sbals_from_sg(struct zfcp_fsf_req *fsf_req, unsigned long sbtype,
struct scatterlist *sg, int max_sbals)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
int retval, bytes = 0;
/* figure out last allowed SBAL */
int first = fsf_req->sbal_first;
int count = fsf_req->sbal_number;
int retval, pci, pci_batch;
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
/* acknowledgements for transferred buffers */
- pci_batch = req_q->pci_batch + count;
+ pci_batch = adapter->req_q_pci_batch + count;
if (unlikely(pci_batch >= ZFCP_QDIO_PCI_INTERVAL)) {
pci_batch %= ZFCP_QDIO_PCI_INTERVAL;
pci = first + count - (pci_batch + 1);
atomic_sub(count, &req_q->count);
req_q->first += count;
req_q->first %= QDIO_MAX_BUFFERS_PER_Q;
- req_q->pci_batch = pci_batch;
+ adapter->req_q_pci_batch = pci_batch;
return 0;
}
struct zfcp_qdio_queue *req_q;
int first, count;
- if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status))
+ if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
return;
/* clear QDIOUP flag, thus do_QDIO is not called during qdio_shutdown */
req_q = &adapter->req_q;
- spin_lock_bh(&req_q->lock);
+ spin_lock_bh(&adapter->req_q_lock);
atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status);
- spin_unlock_bh(&req_q->lock);
+ spin_unlock_bh(&adapter->req_q_lock);
qdio_shutdown(adapter->ccw_device, QDIO_FLAG_CLEANUP_USING_CLEAR);
}
req_q->first = 0;
atomic_set(&req_q->count, 0);
- req_q->pci_batch = 0;
+ adapter->req_q_pci_batch = 0;
adapter->resp_q.first = 0;
atomic_set(&adapter->resp_q.count, 0);
}
*/
int zfcp_qdio_open(struct zfcp_adapter *adapter)
{
- volatile struct qdio_buffer_element *sbale;
+ struct qdio_buffer_element *sbale;
int cc;
- if (atomic_test_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status))
+ if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)
return -EIO;
- if (qdio_establish(&adapter->qdio_init_data)) {
- dev_err(&adapter->ccw_device->dev,
- "Establish of QDIO queues failed.\n");
- return -EIO;
- }
+ if (qdio_establish(&adapter->qdio_init_data))
+ goto failed_establish;
- if (qdio_activate(adapter->ccw_device)) {
- dev_err(&adapter->ccw_device->dev,
- "Activate of QDIO queues failed.\n");
+ if (qdio_activate(adapter->ccw_device))
goto failed_qdio;
- }
for (cc = 0; cc < QDIO_MAX_BUFFERS_PER_Q; cc++) {
sbale = &(adapter->resp_q.sbal[cc]->element[0]);
}
if (do_QDIO(adapter->ccw_device, QDIO_FLAG_SYNC_INPUT, 0, 0,
- QDIO_MAX_BUFFERS_PER_Q)) {
- dev_err(&adapter->ccw_device->dev,
- "Init of QDIO response queue failed.\n");
+ QDIO_MAX_BUFFERS_PER_Q))
goto failed_qdio;
- }
/* set index of first avalable SBALS / number of available SBALS */
adapter->req_q.first = 0;
atomic_set(&adapter->req_q.count, QDIO_MAX_BUFFERS_PER_Q);
- adapter->req_q.pci_batch = 0;
+ adapter->req_q_pci_batch = 0;
return 0;
failed_qdio:
qdio_shutdown(adapter->ccw_device, QDIO_FLAG_CLEANUP_USING_CLEAR);
+failed_establish:
+ dev_err(&adapter->ccw_device->dev,
+ "Setting up the QDIO connection to the FCP adapter failed\n");
return -EIO;
}
return fcp_sns_info_ptr;
}
-void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, fcp_dl_t fcp_dl)
-{
- fcp_dl_t *fcp_dl_ptr;
-
- /*
- * fcp_dl_addr = start address of fcp_cmnd structure +
- * size of fixed part + size of dynamically sized add_dcp_cdb field
- * SEE FCP-2 documentation
- */
- fcp_dl_ptr = (fcp_dl_t *) ((unsigned char *) &fcp_cmd[1] +
- (fcp_cmd->add_fcp_cdb_length << 2));
- *fcp_dl_ptr = fcp_dl;
-}
-
static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
{
struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
{
struct zfcp_port *port;
struct zfcp_unit *unit;
+ int scsi_lun;
list_for_each_entry(port, &adapter->port_list_head, list) {
if (!port->rport || (id != port->rport->scsi_target_id))
continue;
- list_for_each_entry(unit, &port->unit_list_head, list)
- if (lun == unit->scsi_lun)
+ list_for_each_entry(unit, &port->unit_list_head, list) {
+ scsi_lun = scsilun_to_int(
+ (struct scsi_lun *)&unit->fcp_lun);
+ if (lun == scsi_lun)
return unit;
+ }
}
return NULL;
return retval;
}
fsf_req->data = NULL;
- fsf_req->status |= ZFCP_STATUS_FSFREQ_ABORTING;
/* don't access old fsf_req after releasing the abort_lock */
write_unlock_irqrestore(&adapter->abort_lock, flags);
sizeof (struct zfcp_adapter *));
if (!adapter->scsi_host) {
dev_err(&adapter->ccw_device->dev,
- "registration with SCSI stack failed.");
+ "Registering the FCP device with the "
+ "SCSI stack failed\n");
return -EIO;
}
scsi_host_put(adapter->scsi_host);
return -EIO;
}
- atomic_set_mask(ZFCP_STATUS_ADAPTER_REGISTERED, &adapter->status);
return 0;
}
scsi_remove_host(shost);
scsi_host_put(shost);
adapter->scsi_host = NULL;
- atomic_clear_mask(ZFCP_STATUS_ADAPTER_REGISTERED, &adapter->status);
return;
}
ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, status, "0x%08x\n",
atomic_read(&adapter->status));
ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, peer_wwnn, "0x%016llx\n",
- adapter->peer_wwnn);
+ (unsigned long long) adapter->peer_wwnn);
ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, peer_wwpn, "0x%016llx\n",
- adapter->peer_wwpn);
+ (unsigned long long) adapter->peer_wwpn);
ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, peer_d_id, "0x%06x\n",
adapter->peer_d_id);
ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, card_version, "0x%04x\n",
{
struct zfcp_adapter *adapter = dev_get_drvdata(dev);
struct zfcp_port *port;
- wwn_t wwpn;
+ u64 wwpn;
int retval = 0;
+ LIST_HEAD(port_remove_lh);
down(&zfcp_data.config_sema);
if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_REMOVE) {
goto out;
}
- if (strict_strtoull(buf, 0, &wwpn)) {
+ if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn)) {
retval = -EINVAL;
goto out;
}
if (port && (atomic_read(&port->refcount) == 0)) {
zfcp_port_get(port);
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
- list_move(&port->list, &adapter->port_remove_lh);
+ list_move(&port->list, &port_remove_lh);
} else
port = NULL;
write_unlock_irq(&zfcp_data.config_lock);
{
struct zfcp_port *port = dev_get_drvdata(dev);
struct zfcp_unit *unit;
- fcp_lun_t fcp_lun;
+ u64 fcp_lun;
int retval = -EINVAL;
down(&zfcp_data.config_sema);
goto out;
}
- if (strict_strtoull(buf, 0, &fcp_lun))
+ if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
goto out;
unit = zfcp_unit_enqueue(port, fcp_lun);
{
struct zfcp_port *port = dev_get_drvdata(dev);
struct zfcp_unit *unit;
- fcp_lun_t fcp_lun;
+ u64 fcp_lun;
int retval = 0;
+ LIST_HEAD(unit_remove_lh);
down(&zfcp_data.config_sema);
if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_REMOVE) {
goto out;
}
- if (strict_strtoull(buf, 0, &fcp_lun)) {
+ if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun)) {
retval = -EINVAL;
goto out;
}
if (unit && (atomic_read(&unit->refcount) == 0)) {
zfcp_unit_get(unit);
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &unit->status);
- list_move(&unit->list, &port->unit_remove_lh);
+ list_move(&unit->list, &unit_remove_lh);
} else
unit = NULL;
}
static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);
-static struct attribute *zfcp_port_ns_attrs[] = {
- &dev_attr_port_failed.attr,
- &dev_attr_port_in_recovery.attr,
- &dev_attr_port_status.attr,
- &dev_attr_port_access_denied.attr,
- NULL
-};
-
-/**
- * zfcp_sysfs_ns_port_attrs - sysfs attributes for nameserver
- */
-struct attribute_group zfcp_sysfs_ns_port_attrs = {
- .attrs = zfcp_port_ns_attrs,
-};
-
-static struct attribute *zfcp_port_no_ns_attrs[] = {
+static struct attribute *zfcp_port_attrs[] = {
&dev_attr_unit_add.attr,
&dev_attr_unit_remove.attr,
&dev_attr_port_failed.attr,
* zfcp_sysfs_port_attrs - sysfs attributes for all other ports
*/
struct attribute_group zfcp_sysfs_port_attrs = {
- .attrs = zfcp_port_no_ns_attrs,
+ .attrs = zfcp_port_attrs,
};
static struct attribute *zfcp_unit_attrs[] = {
ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n",
unit->port->adapter->ccw_device->dev.bus_id);
-ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n", unit->port->wwpn);
-ZFCP_DEFINE_SCSI_ATTR(fcp_lun, "0x%016llx\n", unit->fcp_lun);
+ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n",
+ (unsigned long long) unit->port->wwpn);
+ZFCP_DEFINE_SCSI_ATTR(fcp_lun, "0x%016llx\n",
+ (unsigned long long) unit->fcp_lun);
struct device_attribute *zfcp_sysfs_sdev_attrs[] = {
&dev_attr_fcp_lun,
ZFCP_SHOST_ATTR(seconds_active, "%llu\n",
(unsigned long long) stat_info.seconds_act);
+static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *scsi_host = class_to_shost(dev);
+ struct zfcp_adapter *adapter =
+ (struct zfcp_adapter *) scsi_host->hostdata[0];
+
+ return sprintf(buf, "%d\n", atomic_read(&adapter->qdio_outb_full));
+}
+static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);
+
struct device_attribute *zfcp_sysfs_shost_attrs[] = {
&dev_attr_utilization,
&dev_attr_requests,
&dev_attr_megabytes,
&dev_attr_seconds_active,
+ &dev_attr_queue_full,
NULL
};
To compile this driver as a module, choose M here: the
module will be called qlogicfas.
-config SCSI_QLOGIC_FC_FIRMWARE
- bool "Include loadable firmware in driver"
- depends on SCSI_QLOGIC_FC
- help
- Say Y to include ISP2X00 Fabric Initiator/Target Firmware, with
- expanded LUN addressing and FcTape (FCP-2) support, in the
- qlogicfc driver. This is required on some platforms.
-
config SCSI_QLOGIC_1280
tristate "Qlogic QLA 1240/1x80/1x160 SCSI support"
depends on PCI && SCSI
/*
* I/O buffer for both MODE_SELECT and INQUIRY commands.
*/
- char buffer[CLARIION_BUFFER_SIZE];
+ unsigned char buffer[CLARIION_BUFFER_SIZE];
/*
* SCSI sense buffer for commands -- assumes serial issuance
* and completion sequence of all commands for same multipath.
err = SCSI_DH_DEV_TEMP_BUSY;
goto out;
}
- if (csdev->buffer[4] < 0 || csdev->buffer[4] > 2) {
+ if (csdev->buffer[4] > 2) {
/* Invalid buffer format */
sdev_printk(KERN_NOTICE, sdev,
"%s: invalid VPD page 0xC0 format\n",
return NULL;
}
- memset(rq->cmd, 0, BLK_MAX_CDB);
rq->cmd_len = COMMAND_SIZE(cmd);
rq->cmd[0] = cmd;
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_FAILFAST;
req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY);
- memset(req->cmd, 0, MAX_COMMAND_SIZE);
req->cmd[0] = TEST_UNIT_READY;
req->timeout = HP_SW_TIMEOUT;
req->sense = h->sense;
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_FAILFAST;
req->cmd_len = COMMAND_SIZE(START_STOP);
- memset(req->cmd, 0, MAX_COMMAND_SIZE);
req->cmd[0] = START_STOP;
req->cmd[4] = 1; /* Start spin cycle */
req->timeout = HP_SW_TIMEOUT;
return NULL;
}
- memset(rq->cmd, 0, BLK_MAX_CDB);
-
rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
rq->retries = RDAC_RETRIES;
{"STK", "OPENstorage D280"},
{"SUN", "CSM200_R"},
{"SUN", "LCSM100_F"},
+ {"DELL", "MD3000"},
+ {"DELL", "MD3000i"},
{NULL, NULL},
};
struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
{
struct device *cdev;
- struct Scsi_Host *shost = ERR_PTR(-ENXIO);
+ struct Scsi_Host *shost = NULL;
cdev = class_find_device(&shost_class, NULL, &hostnum,
__scsi_host_match);
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing in progress sc %p itt 0x%x\n",
task->sc, task->itt);
- fail_command(conn, task, DID_BUS_BUSY << 16);
+ fail_command(conn, task, error << 16);
}
}
}
valid = 0;
if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
valid = 1;
- else if (start == (FA_BOOT_CODE_ADDR*4) ||
- start == (FA_RISC_CODE_ADDR*4))
+ else if (start == (ha->flt_region_boot * 4) ||
+ start == (ha->flt_region_fw * 4))
valid = 1;
- else if (IS_QLA25XX(ha) && start == (FA_VPD_NVRAM_ADDR*4))
+ else if (IS_QLA25XX(ha) &&
+ start == (ha->flt_region_vpd_nvram * 4))
valid = 1;
if (!valid) {
qla_printk(KERN_WARNING, ha,
pfc_host_stat->dumped_frames = stats->dumped_frames;
pfc_host_stat->nos_count = stats->nos_rcvd;
}
+ pfc_host_stat->fcp_input_megabytes = ha->qla_stats.input_bytes >> 20;
+ pfc_host_stat->fcp_output_megabytes = ha->qla_stats.output_bytes >> 20;
done_free:
dma_pool_free(ha->s_dma_pool, stats, stats_dma);
#include <linux/firmware.h>
#include <linux/aer.h>
#include <linux/mutex.h>
-#include <linux/semaphore.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
struct qla_statistics {
uint32_t total_isp_aborts;
+ uint64_t input_bytes;
+ uint64_t output_bytes;
};
/*
#define FCPORT_UPDATE_NEEDED 27
#define VP_DPC_NEEDED 28 /* wake up for VP dpc handling */
#define UNLOADING 29
+#define NPIV_CONFIG_NEEDED 30
uint32_t device_flags;
#define DFLG_LOCAL_DEVICES BIT_0
uint64_t fce_wr, fce_rd;
struct mutex fce_mutex;
- uint32_t hw_event_start;
uint32_t hw_event_ptr;
uint32_t hw_event_pause_errors;
uint32_t fdt_unprotect_sec_cmd;
uint32_t fdt_protect_sec_cmd;
+ uint32_t flt_region_flt;
+ uint32_t flt_region_fdt;
+ uint32_t flt_region_boot;
+ uint32_t flt_region_fw;
+ uint32_t flt_region_vpd_nvram;
+ uint32_t flt_region_hw_event;
+ uint32_t flt_region_npiv_conf;
+
/* Needed for BEACON */
uint16_t beacon_blink_led;
uint8_t beacon_color_state;
#define FA_RISC_CODE_ADDR 0x20000
#define FA_RISC_CODE_SEGMENTS 2
+#define FA_FLASH_DESCR_ADDR_24 0x11000
+#define FA_FLASH_LAYOUT_ADDR_24 0x11400
+#define FA_NPIV_CONF0_ADDR_24 0x16000
+#define FA_NPIV_CONF1_ADDR_24 0x17000
+
#define FA_FW_AREA_ADDR 0x40000
#define FA_VPD_NVRAM_ADDR 0x48000
#define FA_FEATURE_ADDR 0x4C000
#define FA_FLASH_DESCR_ADDR 0x50000
+#define FA_FLASH_LAYOUT_ADDR 0x50400
#define FA_HW_EVENT0_ADDR 0x54000
-#define FA_HW_EVENT1_ADDR 0x54200
+#define FA_HW_EVENT1_ADDR 0x54400
#define FA_HW_EVENT_SIZE 0x200
#define FA_HW_EVENT_ENTRY_SIZE 4
+#define FA_NPIV_CONF0_ADDR 0x5C000
+#define FA_NPIV_CONF1_ADDR 0x5D000
+
/*
* Flash Error Log Event Codes.
*/
#define HW_EVENT_NVRAM_CHKSUM_ERR 0xF023
#define HW_EVENT_FLASH_FW_ERR 0xF024
-#define FA_BOOT_LOG_ADDR 0x58000
-#define FA_FW_DUMP0_ADDR 0x60000
-#define FA_FW_DUMP1_ADDR 0x70000
-
uint32_t flash_data; /* Flash/NVRAM BIOS data. */
uint32_t ctrl_status; /* Control/Status. */
uint8_t unused2[65];
};
+/* Flash Layout Table ********************************************************/
+
+struct qla_flt_location {
+ uint8_t sig[4];
+ uint32_t start_lo;
+ uint32_t start_hi;
+ uint16_t unused;
+ uint16_t checksum;
+};
+
+struct qla_flt_header {
+ uint16_t version;
+ uint16_t length;
+ uint16_t checksum;
+ uint16_t unused;
+};
+
+#define FLT_REG_FW 0x01
+#define FLT_REG_BOOT_CODE 0x07
+#define FLT_REG_VPD_0 0x14
+#define FLT_REG_NVRAM_0 0x15
+#define FLT_REG_VPD_1 0x16
+#define FLT_REG_NVRAM_1 0x17
+#define FLT_REG_FDT 0x1a
+#define FLT_REG_FLT 0x1c
+#define FLT_REG_HW_EVENT_0 0x1d
+#define FLT_REG_HW_EVENT_1 0x1f
+#define FLT_REG_NPIV_CONF_0 0x29
+#define FLT_REG_NPIV_CONF_1 0x2a
+
+struct qla_flt_region {
+ uint32_t code;
+ uint32_t size;
+ uint32_t start;
+ uint32_t end;
+};
+
+/* Flash NPIV Configuration Table ********************************************/
+
+struct qla_npiv_header {
+ uint8_t sig[2];
+ uint16_t version;
+ uint16_t entries;
+ uint16_t unused[4];
+ uint16_t checksum;
+};
+
+struct qla_npiv_entry {
+ uint16_t flags;
+ uint16_t vf_id;
+ uint16_t qos;
+ uint16_t unused1;
+ uint8_t port_name[WWN_SIZE];
+ uint8_t node_name[WWN_SIZE];
+};
+
/* 84XX Support **************************************************************/
#define MBA_ISP84XX_ALERT 0x800f /* Alert Notification. */
extern int qla2xxx_hw_event_log(scsi_qla_host_t *, uint16_t , uint16_t,
uint16_t, uint16_t);
-extern void qla2xxx_get_flash_info(scsi_qla_host_t *);
+extern int qla2xxx_get_flash_info(scsi_qla_host_t *);
extern int qla2xxx_get_vpd_field(scsi_qla_host_t *, char *, char *, size_t);
+extern void qla2xxx_flash_npiv_conf(scsi_qla_host_t *);
+
/*
* Global Function Prototypes in qla_dbg.c source file.
*/
ha->isp_ops->reset_chip(ha);
+ rval = qla2xxx_get_flash_info(ha);
+ if (rval) {
+ DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n",
+ ha->host_no));
+ return (rval);
+ }
+
ha->isp_ops->get_flash_version(ha, ha->request_ring);
qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
rval = qla2x00_setup_chip(ha);
if (rval)
return (rval);
- qla2xxx_get_flash_info(ha);
}
if (IS_QLA84XX(ha)) {
ha->cs84xx = qla84xx_get_chip(ha);
DEBUG3(printk("%s: exiting normally\n", __func__));
}
- /* Restore state if a resync event occured during processing */
+ /* Restore state if a resync event occurred during processing */
if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
rval = QLA_SUCCESS;
/* Try GID_PT to get device list, else GAN. */
- swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_ATOMIC);
+ swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_KERNEL);
if (!swl) {
/*EMPTY*/
DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
rval = QLA_SUCCESS;
segments = FA_RISC_CODE_SEGMENTS;
- faddr = FA_RISC_CODE_ADDR;
+ faddr = ha->flt_region_fw;
dcode = (uint32_t *)ha->request_ring;
*srisc_addr = 0;
* @ha: HA context
* @ha_locked: is function called with the hardware lock
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
static inline int
qla2x00_issue_marker(scsi_qla_host_t *ha, int ha_locked)
* Returns the proper CF_* direction based on CDB.
*/
static inline uint16_t
-qla2x00_get_cmd_direction(struct scsi_cmnd *cmd)
+qla2x00_get_cmd_direction(srb_t *sp)
{
uint16_t cflags;
cflags = 0;
/* Set transfer direction */
- if (cmd->sc_data_direction == DMA_TO_DEVICE)
+ if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) {
cflags = CF_WRITE;
- else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+ sp->fcport->ha->qla_stats.output_bytes +=
+ scsi_bufflen(sp->cmd);
+ } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) {
cflags = CF_READ;
+ sp->fcport->ha->qla_stats.input_bytes +=
+ scsi_bufflen(sp->cmd);
+ }
return (cflags);
}
ha = sp->ha;
- cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(cmd));
+ cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
/* Three DSDs are available in the Command Type 2 IOCB */
avail_dsds = 3;
ha = sp->ha;
- cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(cmd));
+ cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
/* Two DSDs are available in the Command Type 3 IOCB */
avail_dsds = 2;
* qla2x00_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
int
qla2x00_start_scsi(srb_t *sp)
*
* Can be called from both normal and interrupt context.
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
int
__qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun,
ha = sp->ha;
/* Set transfer direction */
- if (cmd->sc_data_direction == DMA_TO_DEVICE)
+ if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->task_mgmt_flags =
__constant_cpu_to_le16(TMF_WRITE_DATA);
- else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+ sp->fcport->ha->qla_stats.output_bytes +=
+ scsi_bufflen(sp->cmd);
+ } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->task_mgmt_flags =
__constant_cpu_to_le16(TMF_READ_DATA);
+ sp->fcport->ha->qla_stats.input_bytes +=
+ scsi_bufflen(sp->cmd);
+ }
/* One DSD is available in the Command Type 3 IOCB */
avail_dsds = 1;
* qla24xx_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
int
qla24xx_start_scsi(srb_t *sp)
break;
case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
- DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
+ DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", ha->host_no,
mb[1]));
- qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
+ qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]);
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
ha->host_no, mb[1]));
qla_printk(KERN_INFO, ha,
- "LIP reset occured (%x).\n", mb[1]);
+ "LIP reset occurred (%x).\n", mb[1]);
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
case MBA_PORT_UPDATE: /* Port database update */
/*
- * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
+ * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
* event etc. earlier indicating loop is down) then process
* it. Otherwise ignore it and Wait for RSCN to come in.
*/
"scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
ha->host_no, mb[1], mb[2], mb[3]));
- rscn_entry = (mb[1] << 16) | mb[2];
+ rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
ha->d_id.b.al_pa;
if (rscn_entry == host_pid) {
break;
}
+ /* Ignore reserved bits from RSCN-payload. */
+ rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
rscn_queue_index = ha->rscn_in_ptr + 1;
if (rscn_queue_index == MAX_RSCN_COUNT)
rscn_queue_index = 0;
resid = resid_len;
/* Use F/W calculated residual length. */
if (IS_FWI2_CAPABLE(ha)) {
- if (scsi_status & SS_RESIDUAL_UNDER &&
- resid != fw_resid_len) {
+ if (!(scsi_status & SS_RESIDUAL_UNDER)) {
+ lscsi_status = 0;
+ } else if (resid != fw_resid_len) {
scsi_status &= ~SS_RESIDUAL_UNDER;
lscsi_status = 0;
}
DEBUG2_3_11(printk("%s(%ld): timeout schedule "
"isp_abort_needed.\n", __func__, ha->host_no));
qla_printk(KERN_WARNING, ha,
- "Mailbox command timeout occured. Scheduling ISP "
+ "Mailbox command timeout occurred. Scheduling ISP "
"abort.\n");
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
qla2xxx_wake_dpc(ha);
DEBUG2_3_11(printk("%s(%ld): timeout calling "
"abort_isp\n", __func__, ha->host_no));
qla_printk(KERN_WARNING, ha,
- "Mailbox command timeout occured. Issuing ISP "
+ "Mailbox command timeout occurred. Issuing ISP "
"abort.\n");
set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
char *pmap;
dma_addr_t pmap_dma;
- pmap = dma_pool_alloc(ha->s_dma_pool, GFP_ATOMIC, &pmap_dma);
+ pmap = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pmap_dma);
if (pmap == NULL) {
DEBUG2_3_11(printk("%s(%ld): **** Mem Alloc Failed ****",
__func__, ha->host_no));
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
set_bit(RSCN_UPDATE, &ha->dpc_flags);
+ set_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
}
static int
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_25XX;
ha->isp_ops = &qla25xx_isp_ops;
- ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
- FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
}
host->can_queue = ha->request_q_length + 128;
ha->host_no));
}
+ if (test_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags) &&
+ atomic_read(&ha->loop_state) == LOOP_READY) {
+ clear_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
+ qla2xxx_flash_npiv_conf(ha);
+ }
+
if (!ha->interrupts_on)
ha->isp_ops->enable_intrs(ha);
}
}
-void
-qla2xxx_get_flash_info(scsi_qla_host_t *ha)
+static int
+qla2xxx_find_flt_start(scsi_qla_host_t *ha, uint32_t *start)
+{
+ const char *loc, *locations[] = { "DEF", "PCI" };
+ uint32_t pcihdr, pcids;
+ uint32_t *dcode;
+ uint8_t *buf, *bcode, last_image;
+ uint16_t cnt, chksum, *wptr;
+ struct qla_flt_location *fltl;
+
+ /*
+ * FLT-location structure resides after the last PCI region.
+ */
+
+ /* Begin with sane defaults. */
+ loc = locations[0];
+ *start = IS_QLA24XX_TYPE(ha) ? FA_FLASH_LAYOUT_ADDR_24:
+ FA_FLASH_LAYOUT_ADDR;
+
+ /* Begin with first PCI expansion ROM header. */
+ buf = (uint8_t *)ha->request_ring;
+ dcode = (uint32_t *)ha->request_ring;
+ pcihdr = 0;
+ last_image = 1;
+ do {
+ /* Verify PCI expansion ROM header. */
+ qla24xx_read_flash_data(ha, dcode, pcihdr >> 2, 0x20);
+ bcode = buf + (pcihdr % 4);
+ if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa)
+ goto end;
+
+ /* Locate PCI data structure. */
+ pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
+ qla24xx_read_flash_data(ha, dcode, pcids >> 2, 0x20);
+ bcode = buf + (pcihdr % 4);
+
+ /* Validate signature of PCI data structure. */
+ if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
+ bcode[0x2] != 'I' || bcode[0x3] != 'R')
+ goto end;
+
+ last_image = bcode[0x15] & BIT_7;
+
+ /* Locate next PCI expansion ROM. */
+ pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
+ } while (!last_image);
+
+ /* Now verify FLT-location structure. */
+ fltl = (struct qla_flt_location *)ha->request_ring;
+ qla24xx_read_flash_data(ha, dcode, pcihdr >> 2,
+ sizeof(struct qla_flt_location) >> 2);
+ if (fltl->sig[0] != 'Q' || fltl->sig[1] != 'F' ||
+ fltl->sig[2] != 'L' || fltl->sig[3] != 'T')
+ goto end;
+
+ wptr = (uint16_t *)ha->request_ring;
+ cnt = sizeof(struct qla_flt_location) >> 1;
+ for (chksum = 0; cnt; cnt--)
+ chksum += le16_to_cpu(*wptr++);
+ if (chksum) {
+ qla_printk(KERN_ERR, ha,
+ "Inconsistent FLTL detected: checksum=0x%x.\n", chksum);
+ qla2x00_dump_buffer(buf, sizeof(struct qla_flt_location));
+ return QLA_FUNCTION_FAILED;
+ }
+
+ /* Good data. Use specified location. */
+ loc = locations[1];
+ *start = le16_to_cpu(fltl->start_hi) << 16 |
+ le16_to_cpu(fltl->start_lo);
+end:
+ DEBUG2(qla_printk(KERN_DEBUG, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
+ return QLA_SUCCESS;
+}
+
+static void
+qla2xxx_get_flt_info(scsi_qla_host_t *ha, uint32_t flt_addr)
+{
+ const char *loc, *locations[] = { "DEF", "FLT" };
+ uint16_t *wptr;
+ uint16_t cnt, chksum;
+ uint32_t start;
+ struct qla_flt_header *flt;
+ struct qla_flt_region *region;
+
+ ha->flt_region_flt = flt_addr;
+ wptr = (uint16_t *)ha->request_ring;
+ flt = (struct qla_flt_header *)ha->request_ring;
+ region = (struct qla_flt_region *)&flt[1];
+ ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring,
+ flt_addr << 2, OPTROM_BURST_SIZE);
+ if (*wptr == __constant_cpu_to_le16(0xffff))
+ goto no_flash_data;
+ if (flt->version != __constant_cpu_to_le16(1)) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported FLT detected: "
+ "version=0x%x length=0x%x checksum=0x%x.\n",
+ le16_to_cpu(flt->version), le16_to_cpu(flt->length),
+ le16_to_cpu(flt->checksum)));
+ goto no_flash_data;
+ }
+
+ cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
+ for (chksum = 0; cnt; cnt--)
+ chksum += le16_to_cpu(*wptr++);
+ if (chksum) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
+ "version=0x%x length=0x%x checksum=0x%x.\n",
+ le16_to_cpu(flt->version), le16_to_cpu(flt->length),
+ chksum));
+ goto no_flash_data;
+ }
+
+ loc = locations[1];
+ cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
+ for ( ; cnt; cnt--, region++) {
+ /* Store addresses as DWORD offsets. */
+ start = le32_to_cpu(region->start) >> 2;
+
+ DEBUG3(qla_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
+ "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
+ le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
+
+ switch (le32_to_cpu(region->code)) {
+ case FLT_REG_FW:
+ ha->flt_region_fw = start;
+ break;
+ case FLT_REG_BOOT_CODE:
+ ha->flt_region_boot = start;
+ break;
+ case FLT_REG_VPD_0:
+ ha->flt_region_vpd_nvram = start;
+ break;
+ case FLT_REG_FDT:
+ ha->flt_region_fdt = start;
+ break;
+ case FLT_REG_HW_EVENT_0:
+ if (!PCI_FUNC(ha->pdev->devfn))
+ ha->flt_region_hw_event = start;
+ break;
+ case FLT_REG_HW_EVENT_1:
+ if (PCI_FUNC(ha->pdev->devfn))
+ ha->flt_region_hw_event = start;
+ break;
+ case FLT_REG_NPIV_CONF_0:
+ if (!PCI_FUNC(ha->pdev->devfn))
+ ha->flt_region_npiv_conf = start;
+ break;
+ case FLT_REG_NPIV_CONF_1:
+ if (PCI_FUNC(ha->pdev->devfn))
+ ha->flt_region_npiv_conf = start;
+ break;
+ }
+ }
+ goto done;
+
+no_flash_data:
+ /* Use hardcoded defaults. */
+ loc = locations[0];
+ ha->flt_region_fw = FA_RISC_CODE_ADDR;
+ ha->flt_region_boot = FA_BOOT_CODE_ADDR;
+ ha->flt_region_vpd_nvram = FA_VPD_NVRAM_ADDR;
+ ha->flt_region_fdt = IS_QLA24XX_TYPE(ha) ? FA_FLASH_DESCR_ADDR_24:
+ FA_FLASH_DESCR_ADDR;
+ ha->flt_region_hw_event = !PCI_FUNC(ha->pdev->devfn) ?
+ FA_HW_EVENT0_ADDR: FA_HW_EVENT1_ADDR;
+ ha->flt_region_npiv_conf = !PCI_FUNC(ha->pdev->devfn) ?
+ (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF0_ADDR_24: FA_NPIV_CONF0_ADDR):
+ (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF1_ADDR_24: FA_NPIV_CONF1_ADDR);
+done:
+ DEBUG2(qla_printk(KERN_DEBUG, ha, "FLT[%s]: boot=0x%x fw=0x%x "
+ "vpd_nvram=0x%x fdt=0x%x flt=0x%x hwe=0x%x npiv=0x%x.\n", loc,
+ ha->flt_region_boot, ha->flt_region_fw, ha->flt_region_vpd_nvram,
+ ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_hw_event,
+ ha->flt_region_npiv_conf));
+}
+
+static void
+qla2xxx_get_fdt_info(scsi_qla_host_t *ha)
{
#define FLASH_BLK_SIZE_32K 0x8000
#define FLASH_BLK_SIZE_64K 0x10000
+ const char *loc, *locations[] = { "MID", "FDT" };
uint16_t cnt, chksum;
uint16_t *wptr;
struct qla_fdt_layout *fdt;
uint8_t man_id, flash_id;
-
- if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
- return;
+ uint16_t mid, fid;
wptr = (uint16_t *)ha->request_ring;
fdt = (struct qla_fdt_layout *)ha->request_ring;
ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring,
- FA_FLASH_DESCR_ADDR << 2, OPTROM_BURST_SIZE);
+ ha->flt_region_fdt << 2, OPTROM_BURST_SIZE);
if (*wptr == __constant_cpu_to_le16(0xffff))
goto no_flash_data;
if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
goto no_flash_data;
}
- ha->fdt_odd_index = le16_to_cpu(fdt->man_id) == 0x1f;
+ loc = locations[1];
+ mid = le16_to_cpu(fdt->man_id);
+ fid = le16_to_cpu(fdt->id);
+ ha->fdt_odd_index = mid == 0x1f;
ha->fdt_wrt_disable = fdt->wrt_disable_bits;
ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0300 | fdt->erase_cmd);
ha->fdt_block_size = le32_to_cpu(fdt->block_size);
flash_conf_to_access_addr(0x0300 | fdt->protect_sec_cmd):
flash_conf_to_access_addr(0x0336);
}
-
- DEBUG2(qla_printk(KERN_DEBUG, ha, "Flash[FDT]: (0x%x/0x%x) erase=0x%x "
- "pro=%x upro=%x idx=%d wrtd=0x%x blk=0x%x.\n",
- le16_to_cpu(fdt->man_id), le16_to_cpu(fdt->id), ha->fdt_erase_cmd,
- ha->fdt_protect_sec_cmd, ha->fdt_unprotect_sec_cmd,
- ha->fdt_odd_index, ha->fdt_wrt_disable, ha->fdt_block_size));
- return;
-
+ goto done;
no_flash_data:
+ loc = locations[0];
qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
+ mid = man_id;
+ fid = flash_id;
ha->fdt_wrt_disable = 0x9c;
ha->fdt_erase_cmd = flash_conf_to_access_addr(0x03d8);
switch (man_id) {
ha->fdt_block_size = FLASH_BLK_SIZE_64K;
break;
}
-
- DEBUG2(qla_printk(KERN_DEBUG, ha, "Flash[MID]: (0x%x/0x%x) erase=0x%x "
- "pro=%x upro=%x idx=%d wrtd=0x%x blk=0x%x.\n", man_id, flash_id,
+done:
+ DEBUG2(qla_printk(KERN_DEBUG, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
+ "pro=%x upro=%x idx=%d wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
ha->fdt_unprotect_sec_cmd, ha->fdt_odd_index, ha->fdt_wrt_disable,
ha->fdt_block_size));
}
+int
+qla2xxx_get_flash_info(scsi_qla_host_t *ha)
+{
+ int ret;
+ uint32_t flt_addr;
+
+ if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
+ return QLA_SUCCESS;
+
+ ret = qla2xxx_find_flt_start(ha, &flt_addr);
+ if (ret != QLA_SUCCESS)
+ return ret;
+
+ qla2xxx_get_flt_info(ha, flt_addr);
+ qla2xxx_get_fdt_info(ha);
+
+ return QLA_SUCCESS;
+}
+
+void
+qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha)
+{
+#define NPIV_CONFIG_SIZE (16*1024)
+ void *data;
+ uint16_t *wptr;
+ uint16_t cnt, chksum;
+ struct qla_npiv_header hdr;
+ struct qla_npiv_entry *entry;
+
+ if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
+ return;
+
+ ha->isp_ops->read_optrom(ha, (uint8_t *)&hdr,
+ ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header));
+ if (hdr.version == __constant_cpu_to_le16(0xffff))
+ return;
+ if (hdr.version != __constant_cpu_to_le16(1)) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported NPIV-Config "
+ "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
+ le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
+ le16_to_cpu(hdr.checksum)));
+ return;
+ }
+
+ data = kmalloc(NPIV_CONFIG_SIZE, GFP_KERNEL);
+ if (!data) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "NPIV-Config: Unable to "
+ "allocate memory.\n"));
+ return;
+ }
+
+ ha->isp_ops->read_optrom(ha, (uint8_t *)data,
+ ha->flt_region_npiv_conf << 2, NPIV_CONFIG_SIZE);
+
+ cnt = (sizeof(struct qla_npiv_header) + le16_to_cpu(hdr.entries) *
+ sizeof(struct qla_npiv_entry)) >> 1;
+ for (wptr = data, chksum = 0; cnt; cnt--)
+ chksum += le16_to_cpu(*wptr++);
+ if (chksum) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent NPIV-Config "
+ "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
+ le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
+ chksum));
+ goto done;
+ }
+
+ entry = data + sizeof(struct qla_npiv_header);
+ cnt = le16_to_cpu(hdr.entries);
+ for ( ; cnt; cnt--, entry++) {
+ uint16_t flags;
+ struct fc_vport_identifiers vid;
+ struct fc_vport *vport;
+
+ flags = le16_to_cpu(entry->flags);
+ if (flags == 0xffff)
+ continue;
+ if ((flags & BIT_0) == 0)
+ continue;
+
+ memset(&vid, 0, sizeof(vid));
+ vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
+ vid.vport_type = FC_PORTTYPE_NPIV;
+ vid.disable = false;
+ vid.port_name = wwn_to_u64(entry->port_name);
+ vid.node_name = wwn_to_u64(entry->node_name);
+
+ DEBUG2(qla_printk(KERN_DEBUG, ha, "NPIV[%02x]: wwpn=%llx "
+ "wwnn=%llx vf_id=0x%x qos=0x%x.\n", cnt,
+ (unsigned long long)vid.port_name,
+ (unsigned long long)vid.node_name,
+ le16_to_cpu(entry->vf_id), le16_to_cpu(entry->qos)));
+
+ vport = fc_vport_create(ha->host, 0, &vid);
+ if (!vport)
+ qla_printk(KERN_INFO, ha, "NPIV-Config: Failed to "
+ "create vport [%02x]: wwpn=%llx wwnn=%llx.\n", cnt,
+ (unsigned long long)vid.port_name,
+ (unsigned long long)vid.node_name);
+ }
+done:
+ kfree(data);
+}
+
static void
qla24xx_unprotect_flash(scsi_qla_host_t *ha)
{
dwptr = (uint32_t *)buf;
for (i = 0; i < bytes >> 2; i++, naddr++)
dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
- flash_data_to_access_addr(FA_VPD_NVRAM_ADDR | naddr)));
+ flash_data_to_access_addr(ha->flt_region_vpd_nvram |
+ naddr)));
return buf;
}
dbuf = vmalloc(RMW_BUFFER_SIZE);
if (!dbuf)
return QLA_MEMORY_ALLOC_FAILED;
- ha->isp_ops->read_optrom(ha, dbuf, FA_VPD_NVRAM_ADDR << 2,
+ ha->isp_ops->read_optrom(ha, dbuf, ha->flt_region_vpd_nvram << 2,
RMW_BUFFER_SIZE);
memcpy(dbuf + (naddr << 2), buf, bytes);
- ha->isp_ops->write_optrom(ha, dbuf, FA_VPD_NVRAM_ADDR << 2,
+ ha->isp_ops->write_optrom(ha, dbuf, ha->flt_region_vpd_nvram << 2,
RMW_BUFFER_SIZE);
vfree(dbuf);
memset(dbyte, 0, 8);
dcode = (uint16_t *)dbyte;
- qla2x00_read_flash_data(ha, dbyte, FA_RISC_CODE_ADDR * 4 + 10,
+ qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10,
8);
DEBUG3(printk("%s(%ld): dumping fw ver from flash:\n",
__func__, ha->host_no));
(dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
dcode[3] == 0)) {
DEBUG2(printk("%s(): Unrecognized fw revision at "
- "%x.\n", __func__, FA_RISC_CODE_ADDR * 4));
+ "%x.\n", __func__, ha->flt_region_fw * 4));
} else {
/* values are in big endian */
ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1];
dcode = mbuf;
/* Begin with first PCI expansion ROM header. */
- pcihdr = 0;
+ pcihdr = ha->flt_region_boot;
last_image = 1;
do {
/* Verify PCI expansion ROM header. */
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
dcode = mbuf;
- qla24xx_read_flash_data(ha, dcode, FA_RISC_CODE_ADDR + 4, 4);
+ qla24xx_read_flash_data(ha, dcode, ha->flt_region_fw + 4, 4);
for (i = 0; i < 4; i++)
dcode[i] = be32_to_cpu(dcode[i]);
(dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
dcode[3] == 0)) {
DEBUG2(printk("%s(): Unrecognized fw version at %x.\n",
- __func__, FA_RISC_CODE_ADDR));
+ __func__, ha->flt_region_fw));
} else {
ha->fw_revision[0] = dcode[0];
ha->fw_revision[1] = dcode[1];
/* Locate first empty entry. */
for (;;) {
if (ha->hw_event_ptr >=
- ha->hw_event_start + FA_HW_EVENT_SIZE) {
+ ha->flt_region_hw_event + FA_HW_EVENT_SIZE) {
DEBUG2(qla_printk(KERN_WARNING, ha,
"HW event -- Log Full!\n"));
return QLA_MEMORY_ALLOC_FAILED;
int rval;
uint32_t marker[2], fdata[4];
- if (ha->hw_event_start == 0)
+ if (ha->flt_region_hw_event == 0)
return QLA_FUNCTION_FAILED;
DEBUG2(qla_printk(KERN_WARNING, ha,
QLA_DRIVER_PATCH_VER, QLA_DRIVER_BETA_VER);
/* Locate marker. */
- ha->hw_event_ptr = ha->hw_event_start;
+ ha->hw_event_ptr = ha->flt_region_hw_event;
for (;;) {
qla24xx_read_flash_data(ha, fdata, ha->hw_event_ptr,
4);
break;
ha->hw_event_ptr += FA_HW_EVENT_ENTRY_SIZE;
if (ha->hw_event_ptr >=
- ha->hw_event_start + FA_HW_EVENT_SIZE) {
+ ha->flt_region_hw_event + FA_HW_EVENT_SIZE) {
DEBUG2(qla_printk(KERN_WARNING, ha,
"HW event -- Log Full!\n"));
return QLA_MEMORY_ALLOC_FAILED;
/*
* Driver version
*/
-#define QLA2XXX_VERSION "8.02.01-k7"
+#define QLA2XXX_VERSION "8.02.01-k8"
#define QLA_DRIVER_MAJOR_VER 8
#define QLA_DRIVER_MINOR_VER 2
goto out;
}
- /* Check to see if the scsi lld put this device into state SDEV_BLOCK. */
- if (unlikely(cmd->device->sdev_state == SDEV_BLOCK)) {
+ /* Check to see if the scsi lld made this device blocked. */
+ if (unlikely(scsi_device_blocked(cmd->device))) {
/*
- * in SDEV_BLOCK, the command is just put back on the device
- * queue. The suspend state has already blocked the queue so
- * future requests should not occur until the device
- * transitions out of the suspend state.
+ * in blocked state, the command is just put back on
+ * the device queue. The suspend state has already
+ * blocked the queue so future requests should not
+ * occur until the device transitions out of the
+ * suspend state.
*/
scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY);
break;
case SDEV_QUIESCE:
case SDEV_BLOCK:
+ case SDEV_CREATED_BLOCK:
/*
* If the devices is blocked we defer normal commands.
*/
switch (state) {
case SDEV_CREATED:
- /* There are no legal states that come back to
- * created. This is the manually initialised start
- * state */
- goto illegal;
+ switch (oldstate) {
+ case SDEV_CREATED_BLOCK:
+ break;
+ default:
+ goto illegal;
+ }
+ break;
case SDEV_RUNNING:
switch (oldstate) {
case SDEV_BLOCK:
switch (oldstate) {
- case SDEV_CREATED:
case SDEV_RUNNING:
+ case SDEV_CREATED_BLOCK:
+ break;
+ default:
+ goto illegal;
+ }
+ break;
+
+ case SDEV_CREATED_BLOCK:
+ switch (oldstate) {
+ case SDEV_CREATED:
break;
default:
goto illegal;
int err = 0;
err = scsi_device_set_state(sdev, SDEV_BLOCK);
- if (err)
- return err;
+ if (err) {
+ err = scsi_device_set_state(sdev, SDEV_CREATED_BLOCK);
+
+ if (err)
+ return err;
+ }
/*
* The device has transitioned to SDEV_BLOCK. Stop the
* and goose the device queue if successful.
*/
err = scsi_device_set_state(sdev, SDEV_RUNNING);
- if (err)
- return err;
+ if (err) {
+ err = scsi_device_set_state(sdev, SDEV_CREATED);
+
+ if (err)
+ return err;
+ }
spin_lock_irqsave(q->queue_lock, flags);
blk_start_queue(q);
#include <linux/time.h>
#include <linux/jiffies.h>
#include <linux/security.h>
+#include <linux/delay.h>
#include <net/sock.h>
#include <net/netlink.h>
struct sock *scsi_nl_sock = NULL;
EXPORT_SYMBOL_GPL(scsi_nl_sock);
+static DEFINE_SPINLOCK(scsi_nl_lock);
+static struct list_head scsi_nl_drivers;
+
+static u32 scsi_nl_state;
+#define STATE_EHANDLER_BSY 0x00000001
+
+struct scsi_nl_transport {
+ int (*msg_handler)(struct sk_buff *);
+ void (*event_handler)(struct notifier_block *, unsigned long, void *);
+ unsigned int refcnt;
+ int flags;
+};
+
+/* flags values (bit flags) */
+#define HANDLER_DELETING 0x1
+
+static struct scsi_nl_transport transports[SCSI_NL_MAX_TRANSPORTS] =
+ { {NULL, }, };
+
+
+struct scsi_nl_drvr {
+ struct list_head next;
+ int (*dmsg_handler)(struct Scsi_Host *shost, void *payload,
+ u32 len, u32 pid);
+ void (*devt_handler)(struct notifier_block *nb,
+ unsigned long event, void *notify_ptr);
+ struct scsi_host_template *hostt;
+ u64 vendor_id;
+ unsigned int refcnt;
+ int flags;
+};
+
+
/**
* scsi_nl_rcv_msg - Receive message handler.
{
struct nlmsghdr *nlh;
struct scsi_nl_hdr *hdr;
- uint32_t rlen;
- int err;
+ unsigned long flags;
+ u32 rlen;
+ int err, tport;
while (skb->len >= NLMSG_SPACE(0)) {
err = 0;
if (nlh->nlmsg_type != SCSI_TRANSPORT_MSG) {
err = -EBADMSG;
- return;
+ goto next_msg;
}
hdr = NLMSG_DATA(nlh);
if (nlh->nlmsg_len < (sizeof(*nlh) + hdr->msglen)) {
printk(KERN_WARNING "%s: discarding partial message\n",
__func__);
- return;
+ goto next_msg;
}
/*
- * We currently don't support anyone sending us a message
+ * Deliver message to the appropriate transport
*/
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+
+ tport = hdr->transport;
+ if ((tport < SCSI_NL_MAX_TRANSPORTS) &&
+ !(transports[tport].flags & HANDLER_DELETING) &&
+ (transports[tport].msg_handler)) {
+ transports[tport].refcnt++;
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ err = transports[tport].msg_handler(skb);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ transports[tport].refcnt--;
+ } else
+ err = -ENOENT;
+
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
next_msg:
if ((err) || (nlh->nlmsg_flags & NLM_F_ACK))
scsi_nl_rcv_event(struct notifier_block *this, unsigned long event, void *ptr)
{
struct netlink_notify *n = ptr;
+ struct scsi_nl_drvr *driver;
+ unsigned long flags;
+ int tport;
if (n->protocol != NETLINK_SCSITRANSPORT)
return NOTIFY_DONE;
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ scsi_nl_state |= STATE_EHANDLER_BSY;
+
/*
- * Currently, we are not tracking PID's, etc. There is nothing
- * to handle.
+ * Pass event on to any transports that may be listening
*/
+ for (tport = 0; tport < SCSI_NL_MAX_TRANSPORTS; tport++) {
+ if (!(transports[tport].flags & HANDLER_DELETING) &&
+ (transports[tport].event_handler)) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ transports[tport].event_handler(this, event, ptr);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+ }
+
+ /*
+ * Pass event on to any drivers that may be listening
+ */
+ list_for_each_entry(driver, &scsi_nl_drivers, next) {
+ if (!(driver->flags & HANDLER_DELETING) &&
+ (driver->devt_handler)) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ driver->devt_handler(this, event, ptr);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+ }
+
+ scsi_nl_state &= ~STATE_EHANDLER_BSY;
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
return NOTIFY_DONE;
}
/**
- * scsi_netlink_init - Called by SCSI subsystem to intialize the SCSI transport netlink interface
+ * GENERIC SCSI transport receive and event handlers
+ **/
+
+/**
+ * scsi_generic_msg_handler - receive message handler for GENERIC transport
+ * messages
+ *
+ * @skb: socket receive buffer
+ *
+ **/
+static int
+scsi_generic_msg_handler(struct sk_buff *skb)
+{
+ struct nlmsghdr *nlh = nlmsg_hdr(skb);
+ struct scsi_nl_hdr *snlh = NLMSG_DATA(nlh);
+ struct scsi_nl_drvr *driver;
+ struct Scsi_Host *shost;
+ unsigned long flags;
+ int err = 0, match, pid;
+
+ pid = NETLINK_CREDS(skb)->pid;
+
+ switch (snlh->msgtype) {
+ case SCSI_NL_SHOST_VENDOR:
+ {
+ struct scsi_nl_host_vendor_msg *msg = NLMSG_DATA(nlh);
+
+ /* Locate the driver that corresponds to the message */
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ match = 0;
+ list_for_each_entry(driver, &scsi_nl_drivers, next) {
+ if (driver->vendor_id == msg->vendor_id) {
+ match = 1;
+ break;
+ }
+ }
+
+ if ((!match) || (!driver->dmsg_handler)) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ err = -ESRCH;
+ goto rcv_exit;
+ }
+
+ if (driver->flags & HANDLER_DELETING) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ err = -ESHUTDOWN;
+ goto rcv_exit;
+ }
+
+ driver->refcnt++;
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+
+
+ /* if successful, scsi_host_lookup takes a shost reference */
+ shost = scsi_host_lookup(msg->host_no);
+ if (!shost) {
+ err = -ENODEV;
+ goto driver_exit;
+ }
+
+ /* is this host owned by the vendor ? */
+ if (shost->hostt != driver->hostt) {
+ err = -EINVAL;
+ goto vendormsg_put;
+ }
+
+ /* pass message on to the driver */
+ err = driver->dmsg_handler(shost, (void *)&msg[1],
+ msg->vmsg_datalen, pid);
+
+vendormsg_put:
+ /* release reference by scsi_host_lookup */
+ scsi_host_put(shost);
+
+driver_exit:
+ /* release our own reference on the registration object */
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ driver->refcnt--;
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ break;
+ }
+
+ default:
+ err = -EBADR;
+ break;
+ }
+
+rcv_exit:
+ if (err)
+ printk(KERN_WARNING "%s: Msgtype %d failed - err %d\n",
+ __func__, snlh->msgtype, err);
+ return err;
+}
+
+
+/**
+ * scsi_nl_add_transport -
+ * Registers message and event handlers for a transport. Enables
+ * receipt of netlink messages and events to a transport.
+ *
+ * @tport: transport registering handlers
+ * @msg_handler: receive message handler callback
+ * @event_handler: receive event handler callback
+ **/
+int
+scsi_nl_add_transport(u8 tport,
+ int (*msg_handler)(struct sk_buff *),
+ void (*event_handler)(struct notifier_block *, unsigned long, void *))
+{
+ unsigned long flags;
+ int err = 0;
+
+ if (tport >= SCSI_NL_MAX_TRANSPORTS)
+ return -EINVAL;
+
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+
+ if (scsi_nl_state & STATE_EHANDLER_BSY) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ msleep(1);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+
+ if (transports[tport].msg_handler || transports[tport].event_handler) {
+ err = -EALREADY;
+ goto register_out;
+ }
+
+ transports[tport].msg_handler = msg_handler;
+ transports[tport].event_handler = event_handler;
+ transports[tport].flags = 0;
+ transports[tport].refcnt = 0;
+
+register_out:
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(scsi_nl_add_transport);
+
+
+/**
+ * scsi_nl_remove_transport -
+ * Disable transport receiption of messages and events
+ *
+ * @tport: transport deregistering handlers
+ *
+ **/
+void
+scsi_nl_remove_transport(u8 tport)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ if (scsi_nl_state & STATE_EHANDLER_BSY) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ msleep(1);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+
+ if (tport < SCSI_NL_MAX_TRANSPORTS) {
+ transports[tport].flags |= HANDLER_DELETING;
+
+ while (transports[tport].refcnt != 0) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ schedule_timeout_uninterruptible(HZ/4);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+ transports[tport].msg_handler = NULL;
+ transports[tport].event_handler = NULL;
+ transports[tport].flags = 0;
+ }
+
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+
+ return;
+}
+EXPORT_SYMBOL_GPL(scsi_nl_remove_transport);
+
+
+/**
+ * scsi_nl_add_driver -
+ * A driver is registering its interfaces for SCSI netlink messages
+ *
+ * @vendor_id: A unique identification value for the driver.
+ * @hostt: address of the driver's host template. Used
+ * to verify an shost is bound to the driver
+ * @nlmsg_handler: receive message handler callback
+ * @nlevt_handler: receive event handler callback
+ *
+ * Returns:
+ * 0 on Success
+ * error result otherwise
+ **/
+int
+scsi_nl_add_driver(u64 vendor_id, struct scsi_host_template *hostt,
+ int (*nlmsg_handler)(struct Scsi_Host *shost, void *payload,
+ u32 len, u32 pid),
+ void (*nlevt_handler)(struct notifier_block *nb,
+ unsigned long event, void *notify_ptr))
+{
+ struct scsi_nl_drvr *driver;
+ unsigned long flags;
+
+ driver = kzalloc(sizeof(*driver), GFP_KERNEL);
+ if (unlikely(!driver)) {
+ printk(KERN_ERR "%s: allocation failure\n", __func__);
+ return -ENOMEM;
+ }
+
+ driver->dmsg_handler = nlmsg_handler;
+ driver->devt_handler = nlevt_handler;
+ driver->hostt = hostt;
+ driver->vendor_id = vendor_id;
+
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ if (scsi_nl_state & STATE_EHANDLER_BSY) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ msleep(1);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+ list_add_tail(&driver->next, &scsi_nl_drivers);
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(scsi_nl_add_driver);
+
+
+/**
+ * scsi_nl_remove_driver -
+ * An driver is unregistering with the SCSI netlink messages
+ *
+ * @vendor_id: The unique identification value for the driver.
+ **/
+void
+scsi_nl_remove_driver(u64 vendor_id)
+{
+ struct scsi_nl_drvr *driver;
+ unsigned long flags;
+
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ if (scsi_nl_state & STATE_EHANDLER_BSY) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ msleep(1);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+
+ list_for_each_entry(driver, &scsi_nl_drivers, next) {
+ if (driver->vendor_id == vendor_id) {
+ driver->flags |= HANDLER_DELETING;
+ while (driver->refcnt != 0) {
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ schedule_timeout_uninterruptible(HZ/4);
+ spin_lock_irqsave(&scsi_nl_lock, flags);
+ }
+ list_del(&driver->next);
+ kfree(driver);
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+ return;
+ }
+ }
+
+ spin_unlock_irqrestore(&scsi_nl_lock, flags);
+
+ printk(KERN_ERR "%s: removal of driver failed - vendor_id 0x%llx\n",
+ __func__, (unsigned long long)vendor_id);
+ return;
+}
+EXPORT_SYMBOL_GPL(scsi_nl_remove_driver);
+
+
+/**
+ * scsi_netlink_init - Called by SCSI subsystem to intialize
+ * the SCSI transport netlink interface
*
**/
void
{
int error;
+ INIT_LIST_HEAD(&scsi_nl_drivers);
+
error = netlink_register_notifier(&scsi_netlink_notifier);
if (error) {
printk(KERN_ERR "%s: register of event handler failed - %d\n",
printk(KERN_ERR "%s: register of recieve handler failed\n",
__func__);
netlink_unregister_notifier(&scsi_netlink_notifier);
+ return;
}
+ /* Register the entry points for the generic SCSI transport */
+ error = scsi_nl_add_transport(SCSI_NL_TRANSPORT,
+ scsi_generic_msg_handler, NULL);
+ if (error)
+ printk(KERN_ERR "%s: register of GENERIC transport handler"
+ " failed - %d\n", __func__, error);
return;
}
void
scsi_netlink_exit(void)
{
+ scsi_nl_remove_transport(SCSI_NL_TRANSPORT);
+
if (scsi_nl_sock) {
netlink_kernel_release(scsi_nl_sock);
netlink_unregister_notifier(&scsi_netlink_notifier);
}
+/*
+ * Exported Interfaces
+ */
+
+/**
+ * scsi_nl_send_transport_msg -
+ * Generic function to send a single message from a SCSI transport to
+ * a single process
+ *
+ * @pid: receiving pid
+ * @hdr: message payload
+ *
+ **/
+void
+scsi_nl_send_transport_msg(u32 pid, struct scsi_nl_hdr *hdr)
+{
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ const char *fn;
+ char *datab;
+ u32 len, skblen;
+ int err;
+
+ if (!scsi_nl_sock) {
+ err = -ENOENT;
+ fn = "netlink socket";
+ goto msg_fail;
+ }
+
+ len = NLMSG_SPACE(hdr->msglen);
+ skblen = NLMSG_SPACE(len);
+
+ skb = alloc_skb(skblen, GFP_KERNEL);
+ if (!skb) {
+ err = -ENOBUFS;
+ fn = "alloc_skb";
+ goto msg_fail;
+ }
+
+ nlh = nlmsg_put(skb, pid, 0, SCSI_TRANSPORT_MSG, len - sizeof(*nlh), 0);
+ if (!nlh) {
+ err = -ENOBUFS;
+ fn = "nlmsg_put";
+ goto msg_fail_skb;
+ }
+ datab = NLMSG_DATA(nlh);
+ memcpy(datab, hdr, hdr->msglen);
+
+ err = nlmsg_unicast(scsi_nl_sock, skb, pid);
+ if (err < 0) {
+ fn = "nlmsg_unicast";
+ /* nlmsg_unicast already kfree_skb'd */
+ goto msg_fail;
+ }
+
+ return;
+
+msg_fail_skb:
+ kfree_skb(skb);
+msg_fail:
+ printk(KERN_WARNING
+ "%s: Dropped Message : pid %d Transport %d, msgtype x%x, "
+ "msglen %d: %s : err %d\n",
+ __func__, pid, hdr->transport, hdr->msgtype, hdr->msglen,
+ fn, err);
+ return;
+}
+EXPORT_SYMBOL_GPL(scsi_nl_send_transport_msg);
+
+
+/**
+ * scsi_nl_send_vendor_msg - called to send a shost vendor unique message
+ * to a specific process id.
+ *
+ * @pid: process id of the receiver
+ * @host_no: host # sending the message
+ * @vendor_id: unique identifier for the driver's vendor
+ * @data_len: amount, in bytes, of vendor unique payload data
+ * @data_buf: pointer to vendor unique data buffer
+ *
+ * Returns:
+ * 0 on succesful return
+ * otherwise, failing error code
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+int
+scsi_nl_send_vendor_msg(u32 pid, unsigned short host_no, u64 vendor_id,
+ char *data_buf, u32 data_len)
+{
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ struct scsi_nl_host_vendor_msg *msg;
+ u32 len, skblen;
+ int err;
+
+ if (!scsi_nl_sock) {
+ err = -ENOENT;
+ goto send_vendor_fail;
+ }
+
+ len = SCSI_NL_MSGALIGN(sizeof(*msg) + data_len);
+ skblen = NLMSG_SPACE(len);
+
+ skb = alloc_skb(skblen, GFP_KERNEL);
+ if (!skb) {
+ err = -ENOBUFS;
+ goto send_vendor_fail;
+ }
+
+ nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG,
+ skblen - sizeof(*nlh), 0);
+ if (!nlh) {
+ err = -ENOBUFS;
+ goto send_vendor_fail_skb;
+ }
+ msg = NLMSG_DATA(nlh);
+
+ INIT_SCSI_NL_HDR(&msg->snlh, SCSI_NL_TRANSPORT,
+ SCSI_NL_SHOST_VENDOR, len);
+ msg->vendor_id = vendor_id;
+ msg->host_no = host_no;
+ msg->vmsg_datalen = data_len; /* bytes */
+ memcpy(&msg[1], data_buf, data_len);
+
+ err = nlmsg_unicast(scsi_nl_sock, skb, pid);
+ if (err)
+ /* nlmsg_multicast already kfree_skb'd */
+ goto send_vendor_fail;
+
+ return 0;
+
+send_vendor_fail_skb:
+ kfree_skb(skb);
+send_vendor_fail:
+ printk(KERN_WARNING
+ "%s: Dropped SCSI Msg : host %d vendor_unique - err %d\n",
+ __func__, host_no, err);
+ return err;
+}
+EXPORT_SYMBOL(scsi_nl_send_vendor_msg);
+
+
int error = -ENXIO;
shost = scsi_host_lookup(host);
- if (IS_ERR(shost))
- return PTR_ERR(shost);
+ if (!shost)
+ return error;
if (shost->transportt->user_scan)
error = shost->transportt->user_scan(shost, channel, id, lun);
int error = -ENXIO;
shost = scsi_host_lookup(host);
- if (IS_ERR(shost))
- return PTR_ERR(shost);
+ if (!shost)
+ return error;
sdev = scsi_device_lookup(shost, channel, id, lun);
if (sdev) {
scsi_remove_device(sdev);
static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
int *bflags, int async)
{
+ int ret;
+
/*
* XXX do not save the inquiry, since it can change underneath us,
* save just vendor/model/rev.
/* set the device running here so that slave configure
* may do I/O */
- scsi_device_set_state(sdev, SDEV_RUNNING);
+ ret = scsi_device_set_state(sdev, SDEV_RUNNING);
+ if (ret) {
+ ret = scsi_device_set_state(sdev, SDEV_BLOCK);
+
+ if (ret) {
+ sdev_printk(KERN_ERR, sdev,
+ "in wrong state %s to complete scan\n",
+ scsi_device_state_name(sdev->sdev_state));
+ return SCSI_SCAN_NO_RESPONSE;
+ }
+ }
if (*bflags & BLIST_MS_192_BYTES_FOR_3F)
sdev->use_192_bytes_for_3f = 1;
transport_configure_device(&sdev->sdev_gendev);
if (sdev->host->hostt->slave_configure) {
- int ret = sdev->host->hostt->slave_configure(sdev);
+ ret = sdev->host->hostt->slave_configure(sdev);
if (ret) {
/*
* if LLDD reports slave not present, don't clutter
*/
sdev = scsi_device_lookup_by_target(starget, lun);
if (sdev) {
- if (rescan || sdev->sdev_state != SDEV_CREATED) {
+ if (rescan || !scsi_device_created(sdev)) {
SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO
"scsi scan: device exists on %s\n",
sdev->sdev_gendev.bus_id));
kfree(lun_data);
out:
scsi_device_put(sdev);
- if (sdev->sdev_state == SDEV_CREATED)
+ if (scsi_device_created(sdev))
/*
* the sdev we used didn't appear in the report luns scan
*/
{ SDEV_QUIESCE, "quiesce" },
{ SDEV_OFFLINE, "offline" },
{ SDEV_BLOCK, "blocked" },
+ { SDEV_CREATED_BLOCK, "created-blocked" },
};
const char *scsi_device_state_name(enum scsi_device_state state)
/* TODO: replace with a O(1) alg */
shost = scsi_host_lookup(host_no);
- if (IS_ERR(shost)) {
+ if (!shost) {
printk(KERN_ERR "Could not find host no %d\n", host_no);
return -EINVAL;
}
dprintk("%d %d %llx\n", host_no, result, (unsigned long long) mid);
shost = scsi_host_lookup(host_no);
- if (IS_ERR(shost)) {
+ if (!shost) {
printk(KERN_ERR "Could not find host no %d\n", host_no);
return err;
}
dprintk("%d %d%llx\n", host_no, result, (unsigned long long)itn_id);
shost = scsi_host_lookup(host_no);
- if (IS_ERR(shost)) {
+ if (!shost) {
printk(KERN_ERR "Could not find host no %d\n", host_no);
return err;
}
static int fc_queue_work(struct Scsi_Host *, struct work_struct *);
static void fc_vport_sched_delete(struct work_struct *work);
-
-/*
- * This is a temporary carrier for creating a vport. It will eventually
- * be replaced by a real message definition for sgio or netlink.
- *
- * fc_vport_identifiers: This set of data contains all elements
- * to uniquely identify and instantiate a FC virtual port.
- *
- * Notes:
- * symbolic_name: The driver is to append the symbolic_name string data
- * to the symbolic_node_name data that it generates by default.
- * the resulting combination should then be registered with the switch.
- * It is expected that things like Xen may stuff a VM title into
- * this field.
- */
-struct fc_vport_identifiers {
- u64 node_name;
- u64 port_name;
- u32 roles;
- bool disable;
- enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */
- char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
-};
-
-static int fc_vport_create(struct Scsi_Host *shost, int channel,
+static int fc_vport_setup(struct Scsi_Host *shost, int channel,
struct device *pdev, struct fc_vport_identifiers *ids,
struct fc_vport **vport);
vid.disable = false; /* always enabled */
/* we only allow support on Channel 0 !!! */
- stat = fc_vport_create(shost, 0, &shost->shost_gendev, &vid, &vport);
+ stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport);
return stat ? stat : count;
}
static FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL,
/**
- * fc_vport_create - allocates and creates a FC virtual port.
+ * fc_vport_setup - allocates and creates a FC virtual port.
* @shost: scsi host the virtual port is connected to.
* @channel: Channel on shost port connected to.
* @pdev: parent device for vport
* This routine assumes no locks are held on entry.
*/
static int
-fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev,
+fc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev,
struct fc_vport_identifiers *ids, struct fc_vport **ret_vport)
{
struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
return error;
}
+/**
+ * fc_vport_create - Admin App or LLDD requests creation of a vport
+ * @shost: scsi host the virtual port is connected to.
+ * @channel: channel on shost port connected to.
+ * @ids: The world wide names, FC4 port roles, etc for
+ * the virtual port.
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+struct fc_vport *
+fc_vport_create(struct Scsi_Host *shost, int channel,
+ struct fc_vport_identifiers *ids)
+{
+ int stat;
+ struct fc_vport *vport;
+
+ stat = fc_vport_setup(shost, channel, &shost->shost_gendev,
+ ids, &vport);
+ return stat ? NULL : vport;
+}
+EXPORT_SYMBOL(fc_vport_create);
/**
* fc_vport_terminate - Admin App or LLDD requests termination of a vport
return -EINVAL;
shost = scsi_host_lookup(ev->u.tgt_dscvr.host_no);
- if (IS_ERR(shost)) {
+ if (!shost) {
printk(KERN_ERR "target discovery could not find host no %u\n",
ev->u.tgt_dscvr.host_no);
return -ENODEV;
return -ENOSYS;
shost = scsi_host_lookup(ev->u.set_host_param.host_no);
- if (IS_ERR(shost)) {
+ if (!shost) {
printk(KERN_ERR "set_host_param could not find host no %u\n",
ev->u.set_host_param.host_no);
return -ENODEV;
#include <linux/blkpg.h>
#include <linux/delay.h>
#include <linux/mutex.h>
+#include <linux/string_helpers.h>
#include <asm/uaccess.h>
#include <scsi/scsi.h>
*/
sector_size = 512;
}
+ blk_queue_hardsect_size(sdp->request_queue, sector_size);
+
{
- /*
- * The msdos fs needs to know the hardware sector size
- * So I have created this table. See ll_rw_blk.c
- * Jacques Gelinas (Jacques@solucorp.qc.ca)
- */
- int hard_sector = sector_size;
- sector_t sz = (sdkp->capacity/2) * (hard_sector/256);
- struct request_queue *queue = sdp->request_queue;
- sector_t mb = sz;
+ char cap_str_2[10], cap_str_10[10];
+ u64 sz = sdkp->capacity << ffz(~sector_size);
- blk_queue_hardsect_size(queue, hard_sector);
- /* avoid 64-bit division on 32-bit platforms */
- sector_div(sz, 625);
- mb -= sz - 974;
- sector_div(mb, 1950);
+ string_get_size(sz, STRING_UNITS_2, cap_str_2,
+ sizeof(cap_str_2));
+ string_get_size(sz, STRING_UNITS_10, cap_str_10,
+ sizeof(cap_str_10));
sd_printk(KERN_NOTICE, sdkp,
- "%llu %d-byte hardware sectors (%llu MB)\n",
+ "%llu %d-byte hardware sectors: (%s/%s)\n",
(unsigned long long)sdkp->capacity,
- hard_sector, (unsigned long long)mb);
+ sector_size, cap_str_10, cap_str_2);
}
/* Rescale capacity to 512-byte units */
static int __init dc390_module_init(void)
{
if (!disable_clustering)
- printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n"
- "\twith \"disable_clustering=1\" and report to maintainers\n");
+ printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n");
+ printk(KERN_INFO " with \"disable_clustering=1\" and report to maintainers\n");
if (tmscsim[0] == -1 || tmscsim[0] > 15) {
tmscsim[0] = 7;
--- /dev/null
+#ifndef _LINUX_STRING_HELPERS_H_
+#define _LINUX_STRING_HELPERS_H_
+
+#include <linux/types.h>
+
+/* Descriptions of the types of units to
+ * print in */
+enum string_size_units {
+ STRING_UNITS_10, /* use powers of 10^3 (standard SI) */
+ STRING_UNITS_2, /* use binary powers of 2^10 */
+};
+
+int string_get_size(u64 size, enum string_size_units units,
+ char *buf, int len);
+
+#endif
* originate in the mid-layer) */
SDEV_OFFLINE, /* Device offlined (by error handling or
* user request */
- SDEV_BLOCK, /* Device blocked by scsi lld. No scsi
- * commands from user or midlayer should be issued
- * to the scsi lld. */
+ SDEV_BLOCK, /* Device blocked by scsi lld. No
+ * scsi commands from user or midlayer
+ * should be issued to the scsi
+ * lld. */
+ SDEV_CREATED_BLOCK, /* same as above but for created devices */
};
enum scsi_device_event {
#define scmd_id(scmd) sdev_id((scmd)->device)
#define scmd_channel(scmd) sdev_channel((scmd)->device)
+/*
+ * checks for positions of the SCSI state machine
+ */
static inline int scsi_device_online(struct scsi_device *sdev)
{
return sdev->sdev_state != SDEV_OFFLINE;
}
+static inline int scsi_device_blocked(struct scsi_device *sdev)
+{
+ return sdev->sdev_state == SDEV_BLOCK ||
+ sdev->sdev_state == SDEV_CREATED_BLOCK;
+}
+static inline int scsi_device_created(struct scsi_device *sdev)
+{
+ return sdev->sdev_state == SDEV_CREATED ||
+ sdev->sdev_state == SDEV_CREATED_BLOCK;
+}
/* accessor functions for the SCSI parameters */
static inline int scsi_device_sync(struct scsi_device *sdev)
#ifndef SCSI_NETLINK_H
#define SCSI_NETLINK_H
+#include <linux/netlink.h>
+
+
/*
* This file intended to be included by both kernel and user space
*/
#define SCSI_NL_TRANSPORT_FC 1
#define SCSI_NL_MAX_TRANSPORTS 2
-/* scsi_nl_hdr->msgtype values are defined in each transport */
+/* Transport-based scsi_nl_hdr->msgtype values are defined in each transport */
+
+/*
+ * GENERIC SCSI scsi_nl_hdr->msgtype Values
+ */
+ /* kernel -> user */
+#define SCSI_NL_SHOST_VENDOR 0x0001
+ /* user -> kernel */
+/* SCSI_NL_SHOST_VENDOR msgtype is kernel->user and user->kernel */
+
+
+/*
+ * Message Structures :
+ */
+
+/* macro to round up message lengths to 8byte boundary */
+#define SCSI_NL_MSGALIGN(len) (((len) + 7) & ~7)
+
+
+/*
+ * SCSI HOST Vendor Unique messages :
+ * SCSI_NL_SHOST_VENDOR
+ *
+ * Note: The Vendor Unique message payload will begin directly after
+ * this structure, with the length of the payload per vmsg_datalen.
+ *
+ * Note: When specifying vendor_id, be sure to read the Vendor Type and ID
+ * formatting requirements specified below
+ */
+struct scsi_nl_host_vendor_msg {
+ struct scsi_nl_hdr snlh; /* must be 1st element ! */
+ uint64_t vendor_id;
+ uint16_t host_no;
+ uint16_t vmsg_datalen;
+} __attribute__((aligned(sizeof(uint64_t))));
/*
}
+#ifdef __KERNEL__
+
+#include <scsi/scsi_host.h>
+
+/* Exported Kernel Interfaces */
+int scsi_nl_add_transport(u8 tport,
+ int (*msg_handler)(struct sk_buff *),
+ void (*event_handler)(struct notifier_block *, unsigned long, void *));
+void scsi_nl_remove_transport(u8 tport);
+
+int scsi_nl_add_driver(u64 vendor_id, struct scsi_host_template *hostt,
+ int (*nlmsg_handler)(struct Scsi_Host *shost, void *payload,
+ u32 len, u32 pid),
+ void (*nlevt_handler)(struct notifier_block *nb,
+ unsigned long event, void *notify_ptr));
+void scsi_nl_remove_driver(u64 vendor_id);
+
+void scsi_nl_send_transport_msg(u32 pid, struct scsi_nl_hdr *hdr);
+int scsi_nl_send_vendor_msg(u32 pid, unsigned short host_no, u64 vendor_id,
+ char *data_buf, u32 data_len);
+
+#endif /* __KERNEL__ */
+
#endif /* SCSI_NETLINK_H */
struct device_attribute dev_attr_vport_##_name = \
__ATTR(_name,_mode,_show,_store)
+/*
+ * fc_vport_identifiers: This set of data contains all elements
+ * to uniquely identify and instantiate a FC virtual port.
+ *
+ * Notes:
+ * symbolic_name: The driver is to append the symbolic_name string data
+ * to the symbolic_node_name data that it generates by default.
+ * the resulting combination should then be registered with the switch.
+ * It is expected that things like Xen may stuff a VM title into
+ * this field.
+ */
+#define FC_VPORT_SYMBOLIC_NAMELEN 64
+struct fc_vport_identifiers {
+ u64 node_name;
+ u64 port_name;
+ u32 roles;
+ bool disable;
+ enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */
+ char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
+};
/*
* FC Virtual Port Attributes
* managed by the transport w/o driver interaction.
*/
-#define FC_VPORT_SYMBOLIC_NAMELEN 64
struct fc_vport {
/* Fixed Attributes */
* be sure to read the Vendor Type and ID formatting requirements
* specified in scsi_netlink.h
*/
+struct fc_vport *fc_vport_create(struct Scsi_Host *shost, int channel,
+ struct fc_vport_identifiers *);
int fc_vport_terminate(struct fc_vport *vport);
#endif /* SCSI_TRANSPORT_FC_H */
lib-y += kobject.o kref.o klist.o
obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
- bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o
+ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \
+ string_helpers.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
--- /dev/null
+/*
+ * Helpers for formatting and printing strings
+ *
+ * Copyright 31 August 2008 James Bottomley
+ */
+#include <linux/kernel.h>
+#include <linux/math64.h>
+#include <linux/module.h>
+#include <linux/string_helpers.h>
+
+/**
+ * string_get_size - get the size in the specified units
+ * @size: The size to be converted
+ * @units: units to use (powers of 1000 or 1024)
+ * @buf: buffer to format to
+ * @len: length of buffer
+ *
+ * This function returns a string formatted to 3 significant figures
+ * giving the size in the required units. Returns 0 on success or
+ * error on failure. @buf is always zero terminated.
+ *
+ */
+int string_get_size(u64 size, const enum string_size_units units,
+ char *buf, int len)
+{
+ const char *units_10[] = { "B", "KB", "MB", "GB", "TB", "PB",
+ "EB", "ZB", "YB", NULL};
+ const char *units_2[] = {"B", "KiB", "MiB", "GiB", "TiB", "PiB",
+ "EiB", "ZiB", "YiB", NULL };
+ const char **units_str[] = {
+ [STRING_UNITS_10] = units_10,
+ [STRING_UNITS_2] = units_2,
+ };
+ const int divisor[] = {
+ [STRING_UNITS_10] = 1000,
+ [STRING_UNITS_2] = 1024,
+ };
+ int i, j;
+ u64 remainder = 0, sf_cap;
+ char tmp[8];
+
+ tmp[0] = '\0';
+
+ for (i = 0; size > divisor[units] && units_str[units][i]; i++)
+ remainder = do_div(size, divisor[units]);
+
+ sf_cap = size;
+ for (j = 0; sf_cap*10 < 1000; j++)
+ sf_cap *= 10;
+
+ if (j) {
+ remainder *= 1000;
+ do_div(remainder, divisor[units]);
+ snprintf(tmp, sizeof(tmp), ".%03lld",
+ (unsigned long long)remainder);
+ tmp[j+1] = '\0';
+ }
+
+ snprintf(buf, len, "%lld%s%s", (unsigned long long)size,
+ tmp, units_str[units][i]);
+
+ return 0;
+}
+EXPORT_SYMBOL(string_get_size);
git.openpandora.org / pandora-kernel.git / commitdiff