*
* Fibre Channel related functions for the zfcp device driver.
*
- * Copyright IBM Corporation 2008
+ * Copyright IBM Corporation 2008, 2009
*/
+#define KMSG_COMPONENT "zfcp"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
#include "zfcp_ext.h"
-struct ct_iu_gpn_ft_req {
- struct ct_hdr header;
- u8 flags;
- u8 domain_id_scope;
- u8 area_id_scope;
- u8 fc4_type;
-} __attribute__ ((packed));
+enum rscn_address_format {
+ RSCN_PORT_ADDRESS = 0x0,
+ RSCN_AREA_ADDRESS = 0x1,
+ RSCN_DOMAIN_ADDRESS = 0x2,
+ RSCN_FABRIC_ADDRESS = 0x3,
+};
+
+static u32 rscn_range_mask[] = {
+ [RSCN_PORT_ADDRESS] = 0xFFFFFF,
+ [RSCN_AREA_ADDRESS] = 0xFFFF00,
+ [RSCN_DOMAIN_ADDRESS] = 0xFF0000,
+ [RSCN_FABRIC_ADDRESS] = 0x000000,
+};
struct gpn_ft_resp_acc {
u8 control;
u64 wwpn;
} __attribute__ ((packed));
-#define ZFCP_GPN_FT_ENTRIES ((PAGE_SIZE - sizeof(struct ct_hdr)) \
- / sizeof(struct gpn_ft_resp_acc))
+#define ZFCP_CT_SIZE_ONE_PAGE (PAGE_SIZE - sizeof(struct ct_hdr))
+#define ZFCP_GPN_FT_ENTRIES (ZFCP_CT_SIZE_ONE_PAGE \
+ / sizeof(struct gpn_ft_resp_acc))
#define ZFCP_GPN_FT_BUFFERS 4
+#define ZFCP_GPN_FT_MAX_SIZE (ZFCP_GPN_FT_BUFFERS * PAGE_SIZE \
+ - sizeof(struct ct_hdr))
#define ZFCP_GPN_FT_MAX_ENTRIES ZFCP_GPN_FT_BUFFERS * (ZFCP_GPN_FT_ENTRIES + 1)
struct ct_iu_gpn_ft_resp {
struct scatterlist sg_resp[ZFCP_GPN_FT_BUFFERS];
};
-static struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *adapter,
- u32 d_id)
+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)
{
- struct zfcp_port *port;
+ if (mutex_lock_interruptible(&wka_port->mutex))
+ return -ERESTARTSYS;
+
+ if (wka_port->status == ZFCP_WKA_PORT_OFFLINE ||
+ wka_port->status == ZFCP_WKA_PORT_CLOSING) {
+ wka_port->status = ZFCP_WKA_PORT_OPENING;
+ if (zfcp_fsf_open_wka_port(wka_port))
+ wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ }
- list_for_each_entry(port, &adapter->port_list_head, list)
- if ((port->d_id == d_id) &&
- !atomic_test_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status))
- return port;
- return NULL;
+ mutex_unlock(&wka_port->mutex);
+
+ wait_event(wka_port->completion_wq,
+ wka_port->status == ZFCP_WKA_PORT_ONLINE ||
+ wka_port->status == ZFCP_WKA_PORT_OFFLINE);
+
+ 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 = to_delayed_work(work);
+ struct zfcp_wka_port *wka_port =
+ container_of(dw, struct zfcp_wka_port, work);
+
+ 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 milliseconds, other reqs might pop in */
+ schedule_delayed_work(&wka_port->work, HZ / 100);
+}
+
+static void zfcp_fc_wka_port_init(struct zfcp_wka_port *wka_port, u32 d_id,
+ struct zfcp_adapter *adapter)
+{
+ init_waitqueue_head(&wka_port->completion_wq);
+
+ wka_port->adapter = adapter;
+ wka_port->d_id = d_id;
+
+ 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_wka_port_force_offline(struct zfcp_wka_port *wka)
+{
+ cancel_delayed_work_sync(&wka->work);
+ mutex_lock(&wka->mutex);
+ wka->status = ZFCP_WKA_PORT_OFFLINE;
+ mutex_unlock(&wka->mutex);
+}
+
+void zfcp_fc_wka_ports_force_offline(struct zfcp_wka_ports *gs)
+{
+ zfcp_fc_wka_port_force_offline(&gs->ms);
+ zfcp_fc_wka_port_force_offline(&gs->ts);
+ zfcp_fc_wka_port_force_offline(&gs->ds);
+ zfcp_fc_wka_port_force_offline(&gs->as);
+ zfcp_fc_wka_port_force_offline(&gs->ks);
+}
+
+void zfcp_fc_wka_ports_init(struct zfcp_adapter *adapter)
+{
+ struct zfcp_wka_ports *gs = adapter->gs;
+
+ zfcp_fc_wka_port_init(&gs->ms, FC_FID_MGMT_SERV, adapter);
+ zfcp_fc_wka_port_init(&gs->ts, FC_FID_TIME_SERV, adapter);
+ zfcp_fc_wka_port_init(&gs->ds, FC_FID_DIR_SERV, adapter);
+ zfcp_fc_wka_port_init(&gs->as, FC_FID_ALIASES, adapter);
+ zfcp_fc_wka_port_init(&gs->ks, FC_FID_SEC_KEY, adapter);
}
static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
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))
- /* Try to connect to unused ports anyway. */
+ if ((port->d_id & range) == (elem->nport_did & range))
+ zfcp_test_link(port);
+ if (!port->d_id)
zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
- 82, fsf_req);
- else if ((port->d_id & range) == (elem->nport_did & range))
- /* Check connection status for connected ports */
- zfcp_test_link(port);
+ "fcrscn1", NULL);
}
+
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
for (i = 1; i < no_entries; i++) {
/* skip head and start with 1st element */
fcp_rscn_element++;
- switch (fcp_rscn_element->addr_format) {
- case ZFCP_PORT_ADDRESS:
- range_mask = ZFCP_PORTS_RANGE_PORT;
- break;
- case ZFCP_AREA_ADDRESS:
- range_mask = ZFCP_PORTS_RANGE_AREA;
- break;
- case ZFCP_DOMAIN_ADDRESS:
- range_mask = ZFCP_PORTS_RANGE_DOMAIN;
- break;
- case ZFCP_FABRIC_ADDRESS:
- range_mask = ZFCP_PORTS_RANGE_FABRIC;
- break;
- default:
- continue;
- }
+ range_mask = rscn_range_mask[fcp_rscn_element->addr_format];
_zfcp_fc_incoming_rscn(fsf_req, range_mask, fcp_rscn_element);
}
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;
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
if (port && (port->wwpn == wwpn))
- zfcp_erp_port_forced_reopen(port, 0, 83, req);
+ zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req);
}
static void zfcp_fc_incoming_plogi(struct zfcp_fsf_req *req)
(struct fsf_status_read_buffer *) fsf_req->data;
unsigned int els_type = status_buffer->payload.data[0];
- zfcp_san_dbf_event_incoming_els(fsf_req);
+ zfcp_dbf_san_incoming_els(fsf_req);
if (els_type == LS_PLOGI)
zfcp_fc_incoming_plogi(fsf_req);
else if (els_type == LS_LOGO)
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;
- if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT) {
- atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status);
- goto out;
- }
+ return;
+ if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT)
+ 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)
+static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port,
+ struct zfcp_gid_pn_data *gid_pn)
{
+ struct zfcp_adapter *adapter = port->adapter;
+ struct zfcp_fc_ns_handler_data compl_rec;
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));
/* 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->port = port;
+ gid_pn->ct.wka_port = &adapter->gs->ds;
+ 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.req_count = 1;
- gid_pn->ct.resp_count = 1;
sg_init_one(&gid_pn->req, &gid_pn->ct_iu_req,
sizeof(struct ct_iu_gid_pn_req));
sg_init_one(&gid_pn->resp, &gid_pn->ct_iu_resp,
gid_pn->ct_iu_req.header.gs_subtype = ZFCP_CT_NAME_SERVER;
gid_pn->ct_iu_req.header.options = ZFCP_CT_SYNCHRONOUS;
gid_pn->ct_iu_req.header.cmd_rsp_code = ZFCP_CT_GID_PN;
- gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_MAX_SIZE;
- gid_pn->ct_iu_req.wwpn = erp_action->port->wwpn;
+ gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_SIZE_ONE_PAGE / 4;
+ gid_pn->ct_iu_req.wwpn = 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.gid_pn_req);
+ if (!ret)
+ wait_for_completion(&compl_rec.done);
+ return ret;
+}
+
+/**
+ * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
+ * @port: port where GID_PN request is needed
+ * return: -ENOMEM on error, 0 otherwise
+ */
+static int zfcp_fc_ns_gid_pn(struct zfcp_port *port)
+{
+ int ret;
+ struct zfcp_gid_pn_data *gid_pn;
+ struct zfcp_adapter *adapter = port->adapter;
+
+ gid_pn = mempool_alloc(adapter->pool.gid_pn_data, GFP_ATOMIC);
+ if (!gid_pn)
+ return -ENOMEM;
- ret = zfcp_fsf_send_ct(&gid_pn->ct, adapter->pool.fsf_req_erp,
- erp_action);
+ memset(gid_pn, 0, sizeof(*gid_pn));
+
+ ret = zfcp_wka_port_get(&adapter->gs->ds);
if (ret)
- mempool_free(gid_pn, adapter->pool.data_gid_pn);
+ goto out;
+
+ ret = zfcp_fc_ns_gid_pn_request(port, gid_pn);
+
+ zfcp_wka_port_put(&adapter->gs->ds);
+out:
+ mempool_free(gid_pn, adapter->pool.gid_pn_data);
return ret;
}
+void zfcp_fc_port_did_lookup(struct work_struct *work)
+{
+ int ret;
+ struct zfcp_port *port = container_of(work, struct zfcp_port,
+ gid_pn_work);
+
+ ret = zfcp_fc_ns_gid_pn(port);
+ if (ret) {
+ /* could not issue gid_pn for some reason */
+ zfcp_erp_adapter_reopen(port->adapter, 0, "fcgpn_1", NULL);
+ goto out;
+ }
+
+ if (!port->d_id) {
+ zfcp_erp_port_failed(port, "fcgpn_2", NULL);
+ goto out;
+ }
+
+ zfcp_erp_port_reopen(port, 0, "fcgpn_3", NULL);
+out:
+ zfcp_port_put(port);
+}
+
/**
* zfcp_fc_plogi_evaluate - evaluate PLOGI playload
* @port: zfcp_port structure
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 */
- zfcp_erp_port_forced_reopen(port, 0, 63, NULL);
+ zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
+ "fcadh_1", NULL);
goto out;
}
if (!port->wwnn)
port->wwnn = ls_adisc->wwnn;
- if (port->wwpn != ls_adisc->wwpn)
- zfcp_erp_port_reopen(port, 0, 64, NULL);
+ if ((port->wwpn != ls_adisc->wwpn) ||
+ !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) {
+ zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
+ "fcadh_2", NULL);
+ goto out;
+ }
+ /* port is good, unblock rport without going through erp */
+ zfcp_scsi_schedule_rport_register(port);
out:
+ atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
zfcp_port_put(port);
kfree(adisc);
}
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;
adisc->els.adapter = adapter;
adisc->els.port = port;
adisc->els.d_id = port->d_id;
return zfcp_fsf_send_els(&adisc->els);
}
-/**
- * zfcp_test_link - lightweight link test procedure
- * @port: port to be tested
- *
- * Test status of a link to a remote port using the ELS command ADISC.
- * If there is a problem with the remote port, error recovery steps
- * will be triggered.
- */
-void zfcp_test_link(struct zfcp_port *port)
+void zfcp_fc_link_test_work(struct work_struct *work)
{
+ struct zfcp_port *port =
+ container_of(work, struct zfcp_port, test_link_work);
int retval;
zfcp_port_get(port);
+ port->rport_task = RPORT_DEL;
+ zfcp_scsi_rport_work(&port->rport_work);
+
+ /* only issue one test command at one time per port */
+ if (atomic_read(&port->status) & ZFCP_STATUS_PORT_LINK_TEST)
+ goto out;
+
+ atomic_set_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
+
retval = zfcp_fc_adisc(port);
- if (retval == 0 || retval == -EBUSY)
+ if (retval == 0)
return;
/* send of ADISC was not possible */
- zfcp_port_put(port);
- zfcp_erp_port_forced_reopen(port, 0, 65, NULL);
-}
-
-static int zfcp_scan_get_nameserver(struct zfcp_adapter *adapter)
-{
- int ret;
+ atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
+ zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL);
- 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);
- zfcp_port_put(adapter->nameserver_port);
- }
- return !atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
- &adapter->nameserver_port->status);
+out:
+ zfcp_port_put(port);
}
-static void zfcp_gpn_ft_handler(unsigned long _done)
+/**
+ * zfcp_test_link - lightweight link test procedure
+ * @port: port to be tested
+ *
+ * Test status of a link to a remote port using the ELS command ADISC.
+ * If there is a problem with the remote port, error recovery steps
+ * will be triggered.
+ */
+void zfcp_test_link(struct zfcp_port *port)
{
- complete((struct completion *)_done);
+ zfcp_port_get(port);
+ if (!queue_work(port->adapter->work_queue, &port->test_link_work))
+ zfcp_port_put(port);
}
-static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft)
+static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft, int buf_num)
{
struct scatterlist *sg = &gpn_ft->sg_req;
- kfree(sg_virt(sg)); /* free request buffer */
- zfcp_sg_free_table(gpn_ft->sg_resp, ZFCP_GPN_FT_BUFFERS);
+ kmem_cache_free(zfcp_data.gpn_ft_cache, sg_virt(sg));
+ zfcp_sg_free_table(gpn_ft->sg_resp, buf_num);
kfree(gpn_ft);
}
-static struct zfcp_gpn_ft *zfcp_alloc_sg_env(void)
+static struct zfcp_gpn_ft *zfcp_alloc_sg_env(int buf_num)
{
struct zfcp_gpn_ft *gpn_ft;
struct ct_iu_gpn_ft_req *req;
if (!gpn_ft)
return NULL;
- req = kzalloc(sizeof(struct ct_iu_gpn_ft_req), GFP_KERNEL);
+ req = kmem_cache_alloc(zfcp_data.gpn_ft_cache, GFP_KERNEL);
if (!req) {
kfree(gpn_ft);
gpn_ft = NULL;
}
sg_init_one(&gpn_ft->sg_req, req, sizeof(*req));
- if (zfcp_sg_setup_table(gpn_ft->sg_resp, ZFCP_GPN_FT_BUFFERS)) {
- zfcp_free_sg_env(gpn_ft);
+ if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) {
+ zfcp_free_sg_env(gpn_ft, buf_num);
gpn_ft = NULL;
}
out:
static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft,
- struct zfcp_adapter *adapter)
+ struct zfcp_adapter *adapter,
+ int max_bytes)
{
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->header.gs_subtype = ZFCP_CT_NAME_SERVER;
req->header.options = ZFCP_CT_SYNCHRONOUS;
req->header.cmd_rsp_code = ZFCP_CT_GPN_FT;
- req->header.max_res_size = (sizeof(struct gpn_ft_resp_acc) *
- (ZFCP_GPN_FT_MAX_ENTRIES - 1)) >> 2;
+ req->header.max_res_size = max_bytes / 4;
req->flags = 0;
req->domain_id_scope = 0;
req->area_id_scope = 0;
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->gs->ds;
+ 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);
- ret = zfcp_fsf_send_ct(ct, NULL, NULL);
+ init_completion(&compl_rec.done);
+ compl_rec.handler = NULL;
+ ret = zfcp_fsf_send_ct(ct, NULL);
if (!ret)
- wait_for_completion(&done);
+ wait_for_completion(&compl_rec.done);
return ret;
}
{
struct zfcp_adapter *adapter = port->adapter;
+ if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC))
+ return;
+
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;
}
- zfcp_erp_port_shutdown(port, 0, 151, NULL);
+ zfcp_erp_port_shutdown(port, 0, "fcpval1", NULL);
zfcp_erp_wait(adapter);
zfcp_port_put(port);
zfcp_port_dequeue(port);
}
-static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft)
+static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft, int max_entries)
{
struct zfcp_send_ct *ct = &gpn_ft->ct;
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;
return -EIO;
}
- if (hdr->max_res_size)
+ if (hdr->max_res_size) {
+ dev_warn(&adapter->ccw_device->dev,
+ "The name server reported %d words residual data\n",
+ hdr->max_res_size);
return -E2BIG;
+ }
down(&zfcp_data.config_sema);
/* first entry is the header */
- for (x = 1; x < ZFCP_GPN_FT_MAX_ENTRIES && !last; x++) {
+ for (x = 1; x < max_entries && !last; x++) {
if (x % (ZFCP_GPN_FT_ENTRIES + 1))
acc++;
else
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) ||
- zfcp_get_port_by_did(adapter, d_id))
+ if (acc->wwpn == fc_host_port_name(adapter->scsi_host))
+ continue;
+ port = zfcp_get_port_by_wwpn(adapter, acc->wwpn);
+ if (port)
continue;
port = zfcp_port_enqueue(adapter, acc->wwpn,
- ZFCP_STATUS_PORT_DID_DID |
ZFCP_STATUS_COMMON_NOESC, d_id);
if (IS_ERR(port))
ret = PTR_ERR(port);
else
- zfcp_erp_port_reopen(port, 0, 149, NULL);
+ zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL);
}
zfcp_erp_wait(adapter);
{
int ret, i;
struct zfcp_gpn_ft *gpn_ft;
+ int chain, max_entries, buf_num, max_bytes;
+
+ chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS;
+ buf_num = chain ? ZFCP_GPN_FT_BUFFERS : 1;
+ max_entries = chain ? ZFCP_GPN_FT_MAX_ENTRIES : ZFCP_GPN_FT_ENTRIES;
+ max_bytes = chain ? ZFCP_GPN_FT_MAX_SIZE : ZFCP_CT_SIZE_ONE_PAGE;
- zfcp_erp_wait(adapter); /* wait until adapter is finished with ERP */
- if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT)
+ if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT &&
+ fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
return 0;
- ret = zfcp_scan_get_nameserver(adapter);
+ ret = zfcp_wka_port_get(&adapter->gs->ds);
if (ret)
return ret;
- gpn_ft = zfcp_alloc_sg_env();
- if (!gpn_ft)
- return -ENOMEM;
+ gpn_ft = zfcp_alloc_sg_env(buf_num);
+ if (!gpn_ft) {
+ ret = -ENOMEM;
+ goto out;
+ }
for (i = 0; i < 3; i++) {
- ret = zfcp_scan_issue_gpn_ft(gpn_ft, adapter);
+ ret = zfcp_scan_issue_gpn_ft(gpn_ft, adapter, max_bytes);
if (!ret) {
- ret = zfcp_scan_eval_gpn_ft(gpn_ft);
+ ret = zfcp_scan_eval_gpn_ft(gpn_ft, max_entries);
if (ret == -EAGAIN)
ssleep(1);
else
break;
}
}
- zfcp_free_sg_env(gpn_ft);
-
+ zfcp_free_sg_env(gpn_ft, buf_num);
+out:
+ zfcp_wka_port_put(&adapter->gs->ds);
return ret;
}
{
zfcp_scan_ports(container_of(work, struct zfcp_adapter, scan_work));
}
+
+struct zfcp_els_fc_job {
+ struct zfcp_send_els els;
+ struct fc_bsg_job *job;
+};
+
+static void zfcp_fc_generic_els_handler(unsigned long data)
+{
+ struct zfcp_els_fc_job *els_fc_job = (struct zfcp_els_fc_job *) data;
+ struct fc_bsg_job *job = els_fc_job->job;
+ struct fc_bsg_reply *reply = job->reply;
+
+ if (els_fc_job->els.status) {
+ /* request rejected or timed out */
+ reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_REJECT;
+ goto out;
+ }
+
+ reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
+ reply->reply_payload_rcv_len = job->reply_payload.payload_len;
+
+out:
+ job->state_flags = FC_RQST_STATE_DONE;
+ job->job_done(job);
+ kfree(els_fc_job);
+}
+
+int zfcp_fc_execute_els_fc_job(struct fc_bsg_job *job)
+{
+ struct zfcp_els_fc_job *els_fc_job;
+ struct fc_rport *rport = job->rport;
+ struct Scsi_Host *shost;
+ struct zfcp_adapter *adapter;
+ struct zfcp_port *port;
+ u8 *port_did;
+
+ shost = rport ? rport_to_shost(rport) : job->shost;
+ adapter = (struct zfcp_adapter *)shost->hostdata[0];
+
+ if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
+ return -EINVAL;
+
+ els_fc_job = kzalloc(sizeof(struct zfcp_els_fc_job), GFP_KERNEL);
+ if (!els_fc_job)
+ return -ENOMEM;
+
+ els_fc_job->els.adapter = adapter;
+ if (rport) {
+ read_lock_irq(&zfcp_data.config_lock);
+ port = rport->dd_data;
+ if (port)
+ els_fc_job->els.d_id = port->d_id;
+ read_unlock_irq(&zfcp_data.config_lock);
+ if (!port) {
+ kfree(els_fc_job);
+ return -EINVAL;
+ }
+ } else {
+ port_did = job->request->rqst_data.h_els.port_id;
+ els_fc_job->els.d_id = (port_did[0] << 16) +
+ (port_did[1] << 8) + port_did[2];
+ }
+
+ els_fc_job->els.req = job->request_payload.sg_list;
+ els_fc_job->els.resp = job->reply_payload.sg_list;
+ els_fc_job->els.handler = zfcp_fc_generic_els_handler;
+ els_fc_job->els.handler_data = (unsigned long) els_fc_job;
+ els_fc_job->job = job;
+
+ return zfcp_fsf_send_els(&els_fc_job->els);
+}
+
+struct zfcp_ct_fc_job {
+ struct zfcp_send_ct ct;
+ struct fc_bsg_job *job;
+};
+
+static void zfcp_fc_generic_ct_handler(unsigned long data)
+{
+ struct zfcp_ct_fc_job *ct_fc_job = (struct zfcp_ct_fc_job *) data;
+ struct fc_bsg_job *job = ct_fc_job->job;
+
+ job->reply->reply_data.ctels_reply.status = ct_fc_job->ct.status ?
+ FC_CTELS_STATUS_REJECT : FC_CTELS_STATUS_OK;
+ job->reply->reply_payload_rcv_len = job->reply_payload.payload_len;
+ job->state_flags = FC_RQST_STATE_DONE;
+ job->job_done(job);
+
+ zfcp_wka_port_put(ct_fc_job->ct.wka_port);
+
+ kfree(ct_fc_job);
+}
+
+int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *job)
+{
+ int ret;
+ u8 gs_type;
+ struct fc_rport *rport = job->rport;
+ struct Scsi_Host *shost;
+ struct zfcp_adapter *adapter;
+ struct zfcp_ct_fc_job *ct_fc_job;
+ u32 preamble_word1;
+
+ shost = rport ? rport_to_shost(rport) : job->shost;
+
+ adapter = (struct zfcp_adapter *)shost->hostdata[0];
+ if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
+ return -EINVAL;
+
+ ct_fc_job = kzalloc(sizeof(struct zfcp_ct_fc_job), GFP_KERNEL);
+ if (!ct_fc_job)
+ return -ENOMEM;
+
+ preamble_word1 = job->request->rqst_data.r_ct.preamble_word1;
+ gs_type = (preamble_word1 & 0xff000000) >> 24;
+
+ switch (gs_type) {
+ case FC_FST_ALIAS:
+ ct_fc_job->ct.wka_port = &adapter->gs->as;
+ break;
+ case FC_FST_MGMT:
+ ct_fc_job->ct.wka_port = &adapter->gs->ms;
+ break;
+ case FC_FST_TIME:
+ ct_fc_job->ct.wka_port = &adapter->gs->ts;
+ break;
+ case FC_FST_DIR:
+ ct_fc_job->ct.wka_port = &adapter->gs->ds;
+ break;
+ default:
+ kfree(ct_fc_job);
+ return -EINVAL; /* no such service */
+ }
+
+ ret = zfcp_wka_port_get(ct_fc_job->ct.wka_port);
+ if (ret) {
+ kfree(ct_fc_job);
+ return ret;
+ }
+
+ ct_fc_job->ct.req = job->request_payload.sg_list;
+ ct_fc_job->ct.resp = job->reply_payload.sg_list;
+ ct_fc_job->ct.timeout = ZFCP_FSF_REQUEST_TIMEOUT;
+ ct_fc_job->ct.handler = zfcp_fc_generic_ct_handler;
+ ct_fc_job->ct.handler_data = (unsigned long) ct_fc_job;
+ ct_fc_job->ct.completion = NULL;
+ ct_fc_job->job = job;
+
+ ret = zfcp_fsf_send_ct(&ct_fc_job->ct, NULL);
+ if (ret) {
+ kfree(ct_fc_job);
+ zfcp_wka_port_put(ct_fc_job->ct.wka_port);
+ }
+ return ret;
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff