*
* Implementation of FSF commands.
*
- * Copyright IBM Corporation 2002, 2009
+ * Copyright IBM Corporation 2002, 2010
*/
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/blktrace_api.h>
+#include <linux/slab.h>
+#include <scsi/fc/fc_els.h>
#include "zfcp_ext.h"
-
-#define ZFCP_REQ_AUTO_CLEANUP 0x00000002
-#define ZFCP_REQ_NO_QTCB 0x00000008
+#include "zfcp_fc.h"
+#include "zfcp_dbf.h"
+#include "zfcp_qdio.h"
+#include "zfcp_reqlist.h"
static void zfcp_fsf_request_timeout_handler(unsigned long data)
{
void zfcp_fsf_req_free(struct zfcp_fsf_req *req)
{
if (likely(req->pool)) {
+ if (likely(req->qtcb))
+ mempool_free(req->qtcb, req->adapter->pool.qtcb_pool);
mempool_free(req, req->pool);
return;
}
- if (req->qtcb) {
- kmem_cache_free(zfcp_data.fsf_req_qtcb_cache, req);
- return;
- }
-}
-
-/**
- * zfcp_fsf_req_dismiss_all - dismiss all fsf requests
- * @adapter: pointer to struct zfcp_adapter
- *
- * Never ever call this without shutting down the adapter first.
- * Otherwise the adapter would continue using and corrupting s390 storage.
- * Included BUG_ON() call to ensure this is done.
- * ERP is supposed to be the only user of this function.
- */
-void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
-{
- struct zfcp_fsf_req *req, *tmp;
- unsigned long flags;
- LIST_HEAD(remove_queue);
- unsigned int i;
-
- BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP);
- spin_lock_irqsave(&adapter->req_list_lock, flags);
- for (i = 0; i < REQUEST_LIST_SIZE; i++)
- list_splice_init(&adapter->req_list[i], &remove_queue);
- spin_unlock_irqrestore(&adapter->req_list_lock, flags);
-
- list_for_each_entry_safe(req, tmp, &remove_queue, list) {
- list_del(&req->list);
- req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
- zfcp_fsf_req_complete(req);
- }
+ if (likely(req->qtcb))
+ kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb);
+ kfree(req);
}
static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
{
+ unsigned long flags;
struct fsf_status_read_buffer *sr_buf = req->data;
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_port *port;
- int d_id = sr_buf->d_id & ZFCP_DID_MASK;
- unsigned long flags;
+ int d_id = ntoh24(sr_buf->d_id);
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- list_for_each_entry(port, &adapter->port_list_head, list)
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
if (port->d_id == d_id) {
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
zfcp_erp_port_reopen(port, 0, "fssrpc1", req);
- return;
+ break;
}
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id,
struct fsf_link_down_info *link_down)
{
struct zfcp_adapter *adapter = req->adapter;
- unsigned long flags;
if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED)
return;
atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
- read_lock_irqsave(&zfcp_data.config_lock, flags);
zfcp_scsi_schedule_rports_block(adapter);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
if (!link_down)
goto out;
struct fsf_status_read_buffer *sr_buf = req->data;
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
- zfcp_hba_dbf_event_fsf_unsol("dism", adapter, sr_buf);
- mempool_free(sr_buf, adapter->pool.data_status_read);
+ zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf);
+ mempool_free(sr_buf, adapter->pool.status_read_data);
zfcp_fsf_req_free(req);
return;
}
- zfcp_hba_dbf_event_fsf_unsol("read", adapter, sr_buf);
+ zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf);
switch (sr_buf->status_type) {
case FSF_STATUS_READ_PORT_CLOSED:
dev_warn(&adapter->ccw_device->dev,
"The error threshold for checksum statistics "
"has been exceeded\n");
- zfcp_hba_dbf_event_berr(adapter, req);
+ zfcp_dbf_hba_berr(adapter->dbf, req);
break;
case FSF_STATUS_READ_LINK_DOWN:
zfcp_fsf_status_read_link_down(req);
zfcp_erp_adapter_access_changed(adapter, "fssrh_3",
req);
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
- schedule_work(&adapter->scan_work);
+ queue_work(adapter->work_queue, &adapter->scan_work);
break;
case FSF_STATUS_READ_CFDC_UPDATED:
zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req);
break;
}
- mempool_free(sr_buf, adapter->pool.data_status_read);
+ mempool_free(sr_buf, adapter->pool.status_read_data);
zfcp_fsf_req_free(req);
atomic_inc(&adapter->stat_miss);
- queue_work(zfcp_data.work_queue, &adapter->stat_work);
+ queue_work(adapter->work_queue, &adapter->stat_work);
}
static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
return;
case FSF_SQ_COMMAND_ABORTED:
- req->status |= ZFCP_STATUS_FSFREQ_ABORTED;
break;
case FSF_SQ_NO_RECOM:
dev_err(&req->adapter->ccw_device->dev,
struct fsf_qtcb *qtcb = req->qtcb;
union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual;
- zfcp_hba_dbf_event_fsf_response(req);
+ zfcp_dbf_hba_fsf_response(req);
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
return;
}
case FSF_PROT_ERROR_STATE:
case FSF_PROT_SEQ_NUMB_ERROR:
zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req);
- req->status |= ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PROT_UNSUPP_QTCB_TYPE:
dev_err(&adapter->ccw_device->dev,
case FSF_PROT_LINK_DOWN:
zfcp_fsf_link_down_info_eval(req, "fspse_5",
&psq->link_down_info);
- /* FIXME: reopening adapter now? better wait for link up */
+ /* go through reopen to flush pending requests */
zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req);
break;
case FSF_PROT_REEST_QUEUE:
* is called to process the completion status and trigger further
* events related to the FSF request.
*/
-void zfcp_fsf_req_complete(struct zfcp_fsf_req *req)
+static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req)
{
if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) {
zfcp_fsf_status_read_handler(req);
if (req->erp_action)
zfcp_erp_notify(req->erp_action, 0);
- req->status |= ZFCP_STATUS_FSFREQ_COMPLETED;
if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP))
zfcp_fsf_req_free(req);
else
- /* notify initiator waiting for the requests completion */
- /*
- * FIXME: Race! We must not access fsf_req here as it might have been
- * cleaned up already due to the set ZFCP_STATUS_FSFREQ_COMPLETED
- * flag. It's an improbable case. But, we have the same paranoia for
- * the cleanup flag already.
- * Might better be handled using complete()?
- * (setting the flag and doing wakeup ought to be atomic
- * with regard to checking the flag as long as waitqueue is
- * part of the to be released structure)
- */
- wake_up(&req->completion_wq);
+ complete(&req->completion);
+}
+
+/**
+ * zfcp_fsf_req_dismiss_all - dismiss all fsf requests
+ * @adapter: pointer to struct zfcp_adapter
+ *
+ * Never ever call this without shutting down the adapter first.
+ * Otherwise the adapter would continue using and corrupting s390 storage.
+ * Included BUG_ON() call to ensure this is done.
+ * ERP is supposed to be the only user of this function.
+ */
+void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
+{
+ struct zfcp_fsf_req *req, *tmp;
+ LIST_HEAD(remove_queue);
+
+ BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP);
+ zfcp_reqlist_move(adapter->req_list, &remove_queue);
+
+ list_for_each_entry_safe(req, tmp, &remove_queue, list) {
+ list_del(&req->list);
+ req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
+ zfcp_fsf_req_complete(req);
+ }
}
static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
{
- struct fsf_qtcb_bottom_config *bottom;
+ struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config;
struct zfcp_adapter *adapter = req->adapter;
struct Scsi_Host *shost = adapter->scsi_host;
+ struct fc_els_flogi *nsp, *plogi;
- bottom = &req->qtcb->bottom.config;
+ /* adjust pointers for missing command code */
+ nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param
+ - sizeof(u32));
+ plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload
+ - sizeof(u32));
if (req->data)
memcpy(req->data, bottom, sizeof(*bottom));
- fc_host_node_name(shost) = bottom->nport_serv_param.wwnn;
- fc_host_port_name(shost) = bottom->nport_serv_param.wwpn;
- fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK;
+ fc_host_port_name(shost) = nsp->fl_wwpn;
+ fc_host_node_name(shost) = nsp->fl_wwnn;
+ fc_host_port_id(shost) = ntoh24(bottom->s_id);
fc_host_speed(shost) = bottom->fc_link_speed;
fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
switch (bottom->fc_topology) {
case FSF_TOPO_P2P:
- adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK;
- adapter->peer_wwpn = bottom->plogi_payload.wwpn;
- adapter->peer_wwnn = bottom->plogi_payload.wwnn;
+ adapter->peer_d_id = ntoh24(bottom->peer_d_id);
+ adapter->peer_wwpn = plogi->fl_wwpn;
+ adapter->peer_wwnn = plogi->fl_wwnn;
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
break;
case FSF_TOPO_FABRIC:
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
fc_host_supported_speeds(shost) = bottom->supported_speed;
+ memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types,
+ FC_FC4_LIST_SIZE);
+ memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types,
+ FC_FC4_LIST_SIZE);
}
static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
}
}
-static int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter)
+static int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio)
{
- struct zfcp_qdio_queue *req_q = &adapter->req_q;
+ struct zfcp_qdio_queue *req_q = &qdio->req_q;
- spin_lock_bh(&adapter->req_q_lock);
+ spin_lock_bh(&qdio->req_q_lock);
if (atomic_read(&req_q->count))
return 1;
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return 0;
}
-static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
+static int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio)
{
+ struct zfcp_adapter *adapter = qdio->adapter;
long ret;
- spin_unlock_bh(&adapter->req_q_lock);
- ret = wait_event_interruptible_timeout(adapter->request_wq,
- zfcp_fsf_sbal_check(adapter), 5 * HZ);
+ spin_unlock_bh(&qdio->req_q_lock);
+ ret = wait_event_interruptible_timeout(qdio->req_q_wq,
+ zfcp_fsf_sbal_check(qdio), 5 * HZ);
if (ret > 0)
return 0;
- if (!ret)
- atomic_inc(&adapter->qdio_outb_full);
+ if (!ret) {
+ atomic_inc(&qdio->req_q_full);
+ /* assume hanging outbound queue, try queue recovery */
+ zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL);
+ }
- spin_lock_bh(&adapter->req_q_lock);
+ spin_lock_bh(&qdio->req_q_lock);
return -EIO;
}
-static struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool)
+static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool)
{
struct zfcp_fsf_req *req;
- req = mempool_alloc(pool, GFP_ATOMIC);
- if (!req)
+
+ if (likely(pool))
+ req = mempool_alloc(pool, GFP_ATOMIC);
+ else
+ req = kmalloc(sizeof(*req), GFP_ATOMIC);
+
+ if (unlikely(!req))
return NULL;
+
memset(req, 0, sizeof(*req));
req->pool = pool;
return req;
}
-static struct zfcp_fsf_req *zfcp_fsf_alloc_qtcb(mempool_t *pool)
+static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool)
{
- struct zfcp_fsf_req_qtcb *qtcb;
+ struct fsf_qtcb *qtcb;
if (likely(pool))
qtcb = mempool_alloc(pool, GFP_ATOMIC);
else
- qtcb = kmem_cache_alloc(zfcp_data.fsf_req_qtcb_cache,
- GFP_ATOMIC);
+ qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC);
+
if (unlikely(!qtcb))
return NULL;
memset(qtcb, 0, sizeof(*qtcb));
- qtcb->fsf_req.qtcb = &qtcb->qtcb;
- qtcb->fsf_req.pool = pool;
-
- return &qtcb->fsf_req;
+ return qtcb;
}
-static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
- u32 fsf_cmd, int req_flags,
- mempool_t *pool)
+static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio,
+ u32 fsf_cmd, mempool_t *pool)
{
struct qdio_buffer_element *sbale;
-
- struct zfcp_fsf_req *req;
- struct zfcp_qdio_queue *req_q = &adapter->req_q;
-
- if (req_flags & ZFCP_REQ_NO_QTCB)
- req = zfcp_fsf_alloc_noqtcb(pool);
- else
- req = zfcp_fsf_alloc_qtcb(pool);
+ struct zfcp_qdio_queue *req_q = &qdio->req_q;
+ struct zfcp_adapter *adapter = qdio->adapter;
+ struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool);
if (unlikely(!req))
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&req->list);
init_timer(&req->timer);
- init_waitqueue_head(&req->completion_wq);
+ init_completion(&req->completion);
req->adapter = adapter;
req->fsf_command = fsf_cmd;
req->req_id = adapter->req_no;
- req->sbal_number = 1;
- req->sbal_first = req_q->first;
- req->sbal_last = req_q->first;
- req->sbale_curr = 1;
+ req->qdio_req.sbal_number = 1;
+ req->qdio_req.sbal_first = req_q->first;
+ req->qdio_req.sbal_last = req_q->first;
+ req->qdio_req.sbale_curr = 1;
- sbale = zfcp_qdio_sbale_req(req);
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].addr = (void *) req->req_id;
sbale[0].flags |= SBAL_FLAGS0_COMMAND;
- if (likely(req->qtcb)) {
- req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no;
+ if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) {
+ if (likely(pool))
+ req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool);
+ else
+ req->qtcb = zfcp_qtcb_alloc(NULL);
+
+ if (unlikely(!req->qtcb)) {
+ zfcp_fsf_req_free(req);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ req->seq_no = adapter->fsf_req_seq_no;
+ req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no;
req->qtcb->prefix.req_id = req->req_id;
req->qtcb->prefix.ulp_info = 26;
req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command];
req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION;
req->qtcb->header.req_handle = req->req_id;
req->qtcb->header.fsf_command = req->fsf_command;
- req->seq_no = adapter->fsf_req_seq_no;
- req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no;
sbale[1].addr = (void *) req->qtcb;
sbale[1].length = sizeof(struct fsf_qtcb);
}
return ERR_PTR(-EIO);
}
- if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP))
- req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
-
return req;
}
static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
- unsigned long flags;
- int idx;
- int with_qtcb = (req->qtcb != NULL);
+ struct zfcp_qdio *qdio = adapter->qdio;
+ int with_qtcb = (req->qtcb != NULL);
+ int req_id = req->req_id;
- /* put allocated FSF request into hash table */
- spin_lock_irqsave(&adapter->req_list_lock, flags);
- idx = zfcp_reqlist_hash(req->req_id);
- list_add_tail(&req->list, &adapter->req_list[idx]);
- spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+ zfcp_reqlist_add(adapter->req_list, req);
- req->qdio_outb_usage = atomic_read(&adapter->req_q.count);
+ req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q.count);
req->issued = get_clock();
- if (zfcp_qdio_send(req)) {
+ if (zfcp_qdio_send(qdio, &req->qdio_req)) {
del_timer(&req->timer);
- spin_lock_irqsave(&adapter->req_list_lock, flags);
/* lookup request again, list might have changed */
- if (zfcp_reqlist_find_safe(adapter, req))
- zfcp_reqlist_remove(adapter, req);
- spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+ zfcp_reqlist_find_rm(adapter->req_list, req_id);
zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req);
return -EIO;
}
* @req_flags: request flags
* Returns: 0 on success, ERROR otherwise
*/
-int zfcp_fsf_status_read(struct zfcp_adapter *adapter)
+int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
{
+ struct zfcp_adapter *adapter = qdio->adapter;
struct zfcp_fsf_req *req;
struct fsf_status_read_buffer *sr_buf;
struct qdio_buffer_element *sbale;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS,
- ZFCP_REQ_NO_QTCB,
- adapter->pool.fsf_req_status_read);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS,
+ adapter->pool.status_read_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
- sbale[0].flags |= SBAL_FLAGS0_TYPE_STATUS;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY;
- req->sbale_curr = 2;
+ req->qdio_req.sbale_curr = 2;
- sr_buf = mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC);
+ sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC);
if (!sr_buf) {
retval = -ENOMEM;
goto failed_buf;
}
memset(sr_buf, 0, sizeof(*sr_buf));
req->data = sr_buf;
- sbale = zfcp_qdio_sbale_curr(req);
+ sbale = zfcp_qdio_sbale_curr(qdio, &req->qdio_req);
sbale->addr = (void *) sr_buf;
sbale->length = sizeof(*sr_buf);
goto out;
failed_req_send:
- mempool_free(sr_buf, adapter->pool.data_status_read);
+ mempool_free(sr_buf, adapter->pool.status_read_data);
failed_buf:
zfcp_fsf_req_free(req);
- zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL);
+ zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL);
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fsafch3", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_BOXED:
zfcp_erp_unit_boxed(unit, "fsafch4", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (fsq->word[0]) {
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
- zfcp_test_link(unit->port);
+ zfcp_fc_test_link(unit->port);
/* fall through */
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
- struct zfcp_adapter *adapter = unit->port->adapter;
+ struct zfcp_qdio *qdio = unit->port->adapter->qdio;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND,
- 0, adapter->pool.fsf_req_abort);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND,
+ qdio->adapter->pool.scsi_abort);
if (IS_ERR(req)) {
req = NULL;
goto out;
ZFCP_STATUS_COMMON_UNBLOCKED)))
goto out_error_free;
- sbale = zfcp_qdio_sbale_req(req);
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
zfcp_fsf_req_free(req);
req = NULL;
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return req;
}
static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
- struct zfcp_send_ct *send_ct = req->data;
+ struct zfcp_fsf_ct_els *ct = req->data;
struct fsf_qtcb_header *header = &req->qtcb->header;
- send_ct->status = -EINVAL;
+ ct->status = -EINVAL;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
goto skip_fsfstatus;
switch (header->fsf_status) {
case FSF_GOOD:
- zfcp_san_dbf_event_ct_response(req);
- send_ct->status = 0;
+ zfcp_dbf_san_ct_response(req);
+ ct->status = 0;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
zfcp_fsf_class_not_supp(req);
case FSF_ACCESS_DENIED:
break;
case FSF_PORT_BOXED:
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
}
skip_fsfstatus:
- if (send_ct->handler)
- send_ct->handler(send_ct->handler_data);
+ if (ct->handler)
+ ct->handler(ct->handler_data);
}
static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale,
struct scatterlist *sg_resp,
int max_sbals)
{
- struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(req);
- u32 feat = req->adapter->adapter_features;
+ struct zfcp_adapter *adapter = req->adapter;
+ struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio,
+ &req->qdio_req);
+ u32 feat = adapter->adapter_features;
int bytes;
if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) {
return 0;
}
- bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
+ bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req,
+ SBAL_FLAGS0_TYPE_WRITE_READ,
sg_req, max_sbals);
if (bytes <= 0)
return -EIO;
req->qtcb->bottom.support.req_buf_length = bytes;
- req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL;
+ req->qdio_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL;
- bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
+ bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req,
+ SBAL_FLAGS0_TYPE_WRITE_READ,
sg_resp, max_sbals);
+ req->qtcb->bottom.support.resp_buf_length = bytes;
if (bytes <= 0)
return -EIO;
- req->qtcb->bottom.support.resp_buf_length = bytes;
+
+ return 0;
+}
+
+static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req,
+ struct scatterlist *sg_req,
+ struct scatterlist *sg_resp,
+ int max_sbals, unsigned int timeout)
+{
+ int ret;
+
+ ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals);
+ if (ret)
+ return ret;
+
+ /* common settings for ct/gs and els requests */
+ if (timeout > 255)
+ timeout = 255; /* max value accepted by hardware */
+ req->qtcb->bottom.support.service_class = FSF_CLASS_3;
+ req->qtcb->bottom.support.timeout = timeout;
+ zfcp_fsf_start_timer(req, (timeout + 10) * HZ);
return 0;
}
* zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS)
* @ct: pointer to struct zfcp_send_ct with data for request
* @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req
- * @erp_action: if non-null the Generic Service request sent within ERP
*/
-int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
- struct zfcp_erp_action *erp_action)
+int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
+ struct zfcp_fsf_ct_els *ct, mempool_t *pool,
+ unsigned int timeout)
{
- struct zfcp_wka_port *wka_port = ct->wka_port;
- struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int ret = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC,
- ZFCP_REQ_AUTO_CLEANUP, pool);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool);
+
if (IS_ERR(req)) {
ret = PTR_ERR(req);
goto out;
}
- ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp,
- FSF_MAX_SBALS_PER_REQ);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp,
+ FSF_MAX_SBALS_PER_REQ, timeout);
if (ret)
goto failed_send;
req->handler = zfcp_fsf_send_ct_handler;
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;
- zfcp_san_dbf_event_ct_request(req);
-
- if (erp_action) {
- erp_action->fsf_req = req;
- req->erp_action = erp_action;
- zfcp_fsf_start_erp_timer(req);
- } else
- zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
+ zfcp_dbf_san_ct_request(req, wka_port->d_id);
ret = zfcp_fsf_req_send(req);
if (ret)
failed_send:
zfcp_fsf_req_free(req);
- if (erp_action)
- erp_action->fsf_req = NULL;
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return ret;
}
static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
{
- struct zfcp_send_els *send_els = req->data;
+ struct zfcp_fsf_ct_els *send_els = req->data;
struct zfcp_port *port = send_els->port;
struct fsf_qtcb_header *header = &req->qtcb->header;
switch (header->fsf_status) {
case FSF_GOOD:
- zfcp_san_dbf_event_els_response(req);
+ zfcp_dbf_san_els_response(req);
send_els->status = 0;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]){
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
- if (port && (send_els->ls_code != ZFCP_LS_ADISC))
- zfcp_test_link(port);
- /*fall through */
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
case FSF_SQ_RETRY_IF_POSSIBLE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
* zfcp_fsf_send_els - initiate an ELS command (FC-FS)
* @els: pointer to struct zfcp_send_els with data for the command
*/
-int zfcp_fsf_send_els(struct zfcp_send_els *els)
+int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
+ struct zfcp_fsf_ct_els *els, unsigned int timeout)
{
struct zfcp_fsf_req *req;
- struct zfcp_adapter *adapter = els->adapter;
- struct fsf_qtcb_bottom_support *bottom;
+ struct zfcp_qdio *qdio = adapter->qdio;
int ret = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS,
- ZFCP_REQ_AUTO_CLEANUP, NULL);
+
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL);
+
if (IS_ERR(req)) {
ret = PTR_ERR(req);
goto out;
}
- ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2, timeout);
if (ret)
goto failed_send;
- bottom = &req->qtcb->bottom.support;
+ hton24(req->qtcb->bottom.support.d_id, d_id);
req->handler = zfcp_fsf_send_els_handler;
- bottom->d_id = els->d_id;
- bottom->service_class = FSF_CLASS_3;
- bottom->timeout = 2 * R_A_TOV;
req->data = els;
- zfcp_san_dbf_event_els_request(req);
+ zfcp_dbf_san_els_request(req);
- zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
ret = zfcp_fsf_req_send(req);
if (ret)
goto failed_send;
failed_send:
zfcp_fsf_req_free(req);
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return ret;
}
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req;
- struct zfcp_adapter *adapter = erp_action->adapter;
+ struct zfcp_qdio *qdio = erp_action->adapter->qdio;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter,
- FSF_QTCB_EXCHANGE_CONFIG_DATA,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA,
+ qdio->adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
FSF_FEATURE_UPDATE_ALERT;
req->erp_action = erp_action;
req->handler = zfcp_fsf_exchange_config_data_handler;
- erp_action->fsf_req = req;
+ erp_action->fsf_req_id = req->req_id;
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
+ erp_action->fsf_req_id = 0;
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
-int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
+int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
struct fsf_qtcb_bottom_config *data)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out_unlock;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA,
- 0, NULL);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out_unlock;
}
- sbale = zfcp_qdio_sbale_req(req);
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_exchange_config_data_handler;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
if (!retval)
- wait_event(req->completion_wq,
- req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
+ wait_for_completion(&req->completion);
zfcp_fsf_req_free(req);
return retval;
out_unlock:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
*/
int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
{
+ struct zfcp_qdio *qdio = erp_action->adapter->qdio;
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))
+ if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
return -EOPNOTSUPP;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA,
+ qdio->adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_exchange_port_data_handler;
req->erp_action = erp_action;
- erp_action->fsf_req = req;
+ erp_action->fsf_req_id = req->req_id;
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
+ erp_action->fsf_req_id = 0;
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
/**
* zfcp_fsf_exchange_port_data_sync - request information about local port
- * @adapter: pointer to struct zfcp_adapter
+ * @qdio: pointer to struct zfcp_qdio
* @data: pointer to struct fsf_qtcb_bottom_port
* Returns: 0 on success, error otherwise
*/
-int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
+int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio,
struct fsf_qtcb_bottom_port *data)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
- if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
+ if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
return -EOPNOTSUPP;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out_unlock;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0,
- NULL);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out_unlock;
if (data)
req->data = data;
- sbale = zfcp_qdio_sbale_req(req);
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_exchange_port_data_handler;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
if (!retval)
- wait_event(req->completion_wq,
- req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
+ wait_for_completion(&req->completion);
+
zfcp_fsf_req_free(req);
return retval;
out_unlock:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
{
struct zfcp_port *port = req->data;
struct fsf_qtcb_header *header = &req->qtcb->header;
- struct fsf_plogi *plogi;
+ struct fc_els_flogi *plogi;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
goto out;
* another GID_PN straight after a port has been opened.
* Alternately, an ADISC/PDISC ELS should suffice, as well.
*/
- plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els;
+ plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els;
if (req->qtcb->bottom.support.els1_length >=
- FSF_PLOGI_MIN_LEN) {
- if (plogi->serv_param.wwpn != port->wwpn)
- port->d_id = 0;
- else {
- port->wwnn = plogi->serv_param.wwnn;
+ FSF_PLOGI_MIN_LEN)
zfcp_fc_plogi_evaluate(port, plogi);
- }
- }
break;
case FSF_UNKNOWN_OP_SUBTYPE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
out:
- zfcp_port_put(port);
+ put_device(&port->dev);
}
/**
int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
- struct zfcp_adapter *adapter = erp_action->adapter;
- struct zfcp_fsf_req *req;
+ struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_port *port = erp_action->port;
+ struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter,
- FSF_QTCB_OPEN_PORT_WITH_DID,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID,
+ qdio->adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_open_port_handler;
- req->qtcb->bottom.support.d_id = port->d_id;
+ hton24(req->qtcb->bottom.support.d_id, port->d_id);
req->data = port;
req->erp_action = erp_action;
- erp_action->fsf_req = req;
- zfcp_port_get(port);
+ erp_action->fsf_req_id = req->req_id;
+ get_device(&port->dev);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
- zfcp_port_put(port);
+ erp_action->fsf_req_id = 0;
+ put_device(&port->dev);
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
- struct zfcp_adapter *adapter = erp_action->adapter;
+ struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT,
+ qdio->adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->data = erp_action->port;
req->erp_action = erp_action;
req->qtcb->header.port_handle = erp_action->port->handle;
- erp_action->fsf_req = req;
+ erp_action->fsf_req_id = req->req_id;
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
+ erp_action->fsf_req_id = 0;
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->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 zfcp_fc_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;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
goto out;
}
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
/* fall through */
case FSF_ACCESS_DENIED:
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
- break;
- case FSF_PORT_ALREADY_OPEN:
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
break;
case FSF_GOOD:
wka_port->handle = header->port_handle;
- wka_port->status = ZFCP_WKA_PORT_ONLINE;
+ /* fall through */
+ case FSF_PORT_ALREADY_OPEN:
+ wka_port->status = ZFCP_FC_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
+ * @wka_port: pointer to struct zfcp_fc_wka_port
* Returns: 0 on success, error otherwise
*/
-int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
+int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
{
struct qdio_buffer_element *sbale;
- struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter,
- FSF_QTCB_OPEN_PORT_WITH_DID,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID,
+ qdio->adapter->pool.erp_req);
+
if (unlikely(IS_ERR(req))) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_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;
+ hton24(req->qtcb->bottom.support.d_id, wka_port->d_id);
req->data = wka_port;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
if (retval)
zfcp_fsf_req_free(req);
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->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;
+ struct zfcp_fc_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, "fscwph1", req);
}
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_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
+ * @wka_port: WKA port to open
* Returns: 0 on success, error otherwise
*/
-int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
+int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
{
struct qdio_buffer_element *sbale;
- struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT,
+ qdio->adapter->pool.erp_req);
+
if (unlikely(IS_ERR(req))) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
if (retval)
zfcp_fsf_req_free(req);
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
/* can't use generic zfcp_erp_modify_port_status because
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
- list_for_each_entry(unit, &port->unit_list_head, list)
+ read_lock(&port->unit_list_lock);
+ list_for_each_entry(unit, &port->unit_list, list)
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&unit->status);
+ read_unlock(&port->unit_list_lock);
zfcp_erp_port_boxed(port, "fscpph2", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
-
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]) {
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port
*/
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
- list_for_each_entry(unit, &port->unit_list_head, list)
+ read_lock(&port->unit_list_lock);
+ list_for_each_entry(unit, &port->unit_list, list)
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&unit->status);
+ read_unlock(&port->unit_list_lock);
break;
}
}
int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
- struct zfcp_adapter *adapter = erp_action->adapter;
+ struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT,
+ qdio->adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->qtcb->header.port_handle = erp_action->port->handle;
req->erp_action = erp_action;
req->handler = zfcp_fsf_close_physical_port_handler;
- erp_action->fsf_req = req;
+ erp_action->fsf_req_id = req->req_id;
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
+ erp_action->fsf_req_id = 0;
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fsouh_2", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_SHARING_VIOLATION:
if (header->fsf_status_qual.word[0])
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]) {
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
- zfcp_test_link(unit->port);
+ zfcp_fc_test_link(unit->port);
/* fall through */
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
+ struct zfcp_qdio *qdio = adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN,
+ adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_open_unit_handler;
req->data = erp_action->unit;
req->erp_action = erp_action;
- erp_action->fsf_req = req;
+ erp_action->fsf_req_id = req->req_id;
if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE))
req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING;
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
+ erp_action->fsf_req_id = 0;
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fscuh_3", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (req->qtcb->header.fsf_status_qual.word[0]) {
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
- zfcp_test_link(unit->port);
+ zfcp_fc_test_link(unit->port);
/* fall through */
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
- struct zfcp_adapter *adapter = erp_action->adapter;
+ struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_erp);
+
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN,
+ qdio->adapter->pool.erp_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sbale = zfcp_qdio_sbale_req(req);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_close_unit_handler;
req->data = erp_action->unit;
req->erp_action = erp_action;
- erp_action->fsf_req = req;
+ erp_action->fsf_req_id = req->req_id;
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
- erp_action->fsf_req = NULL;
+ erp_action->fsf_req_id = 0;
}
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
lat_rec->max = max(lat_rec->max, lat);
}
-static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req)
+static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
{
- struct fsf_qual_latency_info *lat_inf;
- struct latency_cont *lat;
+ struct fsf_qual_latency_info *lat_in;
+ struct latency_cont *lat = NULL;
struct zfcp_unit *unit = req->unit;
+ struct zfcp_blk_drv_data blktrc;
+ int ticks = req->adapter->timer_ticks;
- lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info;
-
- switch (req->qtcb->bottom.io.data_direction) {
- case FSF_DATADIR_READ:
- lat = &unit->latencies.read;
- break;
- case FSF_DATADIR_WRITE:
- lat = &unit->latencies.write;
- break;
- case FSF_DATADIR_CMND:
- lat = &unit->latencies.cmd;
- break;
- default:
- return;
- }
-
- spin_lock(&unit->latencies.lock);
- zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat);
- zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat);
- lat->counter++;
- spin_unlock(&unit->latencies.lock);
-}
+ lat_in = &req->qtcb->prefix.prot_status_qual.latency_info;
-#ifdef CONFIG_BLK_DEV_IO_TRACE
-static void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
-{
- struct fsf_qual_latency_info *lat_inf;
- struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
- struct request *req = scsi_cmnd->request;
- struct zfcp_blk_drv_data trace;
- int ticks = fsf_req->adapter->timer_ticks;
+ blktrc.flags = 0;
+ blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC;
+ if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
+ blktrc.flags |= ZFCP_BLK_REQ_ERROR;
+ blktrc.inb_usage = req->qdio_req.qdio_inb_usage;
+ blktrc.outb_usage = req->qdio_req.qdio_outb_usage;
+
+ if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA &&
+ !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
+ blktrc.flags |= ZFCP_BLK_LAT_VALID;
+ blktrc.channel_lat = lat_in->channel_lat * ticks;
+ blktrc.fabric_lat = lat_in->fabric_lat * ticks;
+
+ switch (req->qtcb->bottom.io.data_direction) {
+ case FSF_DATADIR_READ:
+ lat = &unit->latencies.read;
+ break;
+ case FSF_DATADIR_WRITE:
+ lat = &unit->latencies.write;
+ break;
+ case FSF_DATADIR_CMND:
+ lat = &unit->latencies.cmd;
+ break;
+ }
- trace.flags = 0;
- trace.magic = ZFCP_BLK_DRV_DATA_MAGIC;
- if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) {
- trace.flags |= ZFCP_BLK_LAT_VALID;
- lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info;
- trace.channel_lat = lat_inf->channel_lat * ticks;
- trace.fabric_lat = lat_inf->fabric_lat * ticks;
+ if (lat) {
+ spin_lock(&unit->latencies.lock);
+ zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat);
+ zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat);
+ lat->counter++;
+ spin_unlock(&unit->latencies.lock);
+ }
}
- if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR)
- trace.flags |= ZFCP_BLK_REQ_ERROR;
- trace.inb_usage = fsf_req->qdio_inb_usage;
- trace.outb_usage = fsf_req->qdio_outb_usage;
- blk_add_driver_data(req->q, req, &trace, sizeof(trace));
+ blk_add_driver_data(scsi->request->q, scsi->request, &blktrc,
+ sizeof(blktrc));
}
-#else
-static inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
-{
-}
-#endif
static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
{
struct scsi_cmnd *scpnt;
- struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
- &(req->qtcb->bottom.io.fcp_rsp);
- u32 sns_len;
- char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
+ struct fcp_resp_with_ext *fcp_rsp;
unsigned long flags;
read_lock_irqsave(&req->adapter->abort_lock, flags);
return;
}
- if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
- set_host_byte(scpnt, DID_SOFT_ERROR);
- goto skip_fsfstatus;
- }
-
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
- set_host_byte(scpnt, DID_ERROR);
+ set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED);
goto skip_fsfstatus;
}
- set_msg_byte(scpnt, COMMAND_COMPLETE);
-
- scpnt->result |= fcp_rsp_iu->scsi_status;
-
- if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)
- zfcp_fsf_req_latency(req);
+ fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
+ zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt);
- zfcp_fsf_trace_latency(req);
-
- if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) {
- if (fcp_rsp_info[3] == RSP_CODE_GOOD)
- set_host_byte(scpnt, DID_OK);
- else {
- set_host_byte(scpnt, DID_ERROR);
- goto skip_fsfstatus;
- }
- }
-
- if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) {
- sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) +
- fcp_rsp_iu->fcp_rsp_len;
- sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE);
- sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len);
-
- memcpy(scpnt->sense_buffer,
- zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len);
- }
-
- if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) {
- scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid);
- if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) <
- scpnt->underflow)
- set_host_byte(scpnt, DID_ERROR);
- }
skip_fsfstatus:
- if (scpnt->result != 0)
- zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req);
- else if (scpnt->retries > 0)
- zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req);
- else
- zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req);
+ zfcp_fsf_req_trace(req, scpnt);
+ zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req);
scpnt->host_scribble = NULL;
(scpnt->scsi_done) (scpnt);
static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req)
{
- struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
- &(req->qtcb->bottom.io.fcp_rsp);
- char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
+ struct fcp_resp_with_ext *fcp_rsp;
+ struct fcp_resp_rsp_info *rsp_info;
- if ((fcp_rsp_info[3] != RSP_CODE_GOOD) ||
+ fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
+ rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
+
+ if ((rsp_info->rsp_code != FCP_TMF_CMPL) ||
(req->status & ZFCP_STATUS_FSFREQ_ERROR))
req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED;
}
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fssfch5", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_BOXED:
zfcp_erp_unit_boxed(unit, "fssfch6", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
if (header->fsf_status_qual.word[0] ==
FSF_SQ_INVOKE_LINK_TEST_PROCEDURE)
- zfcp_test_link(unit->port);
+ zfcp_fc_test_link(unit->port);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
}
else {
zfcp_fsf_send_fcp_command_task_handler(req);
req->unit = NULL;
- zfcp_unit_put(unit);
+ put_device(&unit->dev);
}
}
-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)
* @unit: unit where command is sent to
struct scsi_cmnd *scsi_cmnd)
{
struct zfcp_fsf_req *req;
- struct fcp_cmnd_iu *fcp_cmnd_iu;
+ struct fcp_cmnd *fcp_cmnd;
unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
int real_bytes, retval = -EIO;
struct zfcp_adapter *adapter = unit->port->adapter;
+ struct zfcp_qdio *qdio = adapter->qdio;
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
- spin_lock(&adapter->req_q_lock);
- if (atomic_read(&adapter->req_q.count) <= 0) {
- atomic_inc(&adapter->qdio_outb_full);
+ spin_lock(&qdio->req_q_lock);
+ if (atomic_read(&qdio->req_q.count) <= 0) {
+ atomic_inc(&qdio->req_q_full);
goto out;
}
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND,
- ZFCP_REQ_AUTO_CLEANUP,
- adapter->pool.fsf_req_scsi);
+
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND,
+ adapter->pool.scsi_req);
+
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- zfcp_unit_get(unit);
+ req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
+ get_device(&unit->dev);
req->unit = unit;
req->data = scsi_cmnd;
req->handler = zfcp_fsf_send_fcp_command_handler;
req->qtcb->header.lun_handle = unit->handle;
req->qtcb->header.port_handle = unit->port->handle;
req->qtcb->bottom.io.service_class = FSF_CLASS_3;
+ req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN;
scsi_cmnd->host_scribble = (unsigned char *) req->req_id;
- fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd);
- fcp_cmnd_iu->fcp_lun = unit->fcp_lun;
/*
* set depending on data direction:
* data direction bits in SBALE (SB Type)
* data direction bits in QTCB
- * data direction bits in FCP_CMND IU
*/
switch (scsi_cmnd->sc_data_direction) {
case DMA_NONE:
break;
case DMA_FROM_DEVICE:
req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ;
- fcp_cmnd_iu->rddata = 1;
break;
case DMA_TO_DEVICE:
req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE;
sbtype = SBAL_FLAGS0_TYPE_WRITE;
- fcp_cmnd_iu->wddata = 1;
break;
case DMA_BIDIRECTIONAL:
goto failed_scsi_cmnd;
}
- if (likely((scsi_cmnd->device->simple_tags) ||
- ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) &&
- (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED))))
- fcp_cmnd_iu->task_attribute = SIMPLE_Q;
- else
- fcp_cmnd_iu->task_attribute = UNTAGGED;
-
- if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH))
- fcp_cmnd_iu->add_fcp_cdb_length =
- (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2;
+ fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
+ zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
- 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(u32);
-
- real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype,
+ real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sbtype,
scsi_sglist(scsi_cmnd),
FSF_MAX_SBALS_PER_REQ);
if (unlikely(real_bytes < 0)) {
- if (req->sbal_number >= FSF_MAX_SBALS_PER_REQ) {
+ if (req->qdio_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) {
dev_err(&adapter->ccw_device->dev,
"Oversize data package, unit 0x%016Lx "
"on port 0x%016Lx closed\n",
goto failed_scsi_cmnd;
}
- zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes);
-
retval = zfcp_fsf_req_send(req);
if (unlikely(retval))
goto failed_scsi_cmnd;
goto out;
failed_scsi_cmnd:
- zfcp_unit_put(unit);
+ put_device(&unit->dev);
zfcp_fsf_req_free(req);
scsi_cmnd->host_scribble = NULL;
out:
- spin_unlock(&adapter->req_q_lock);
+ spin_unlock(&qdio->req_q_lock);
return retval;
}
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
- struct fcp_cmnd_iu *fcp_cmnd_iu;
- struct zfcp_adapter *adapter = unit->port->adapter;
+ struct fcp_cmnd *fcp_cmnd;
+ struct zfcp_qdio *qdio = unit->port->adapter->qdio;
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return NULL;
- spin_lock_bh(&adapter->req_q_lock);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 0,
- adapter->pool.fsf_req_scsi);
+
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND,
+ qdio->adapter->pool.scsi_req);
+
if (IS_ERR(req)) {
req = NULL;
goto out;
req->qtcb->header.port_handle = unit->port->handle;
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(u32);
+ req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN;
- sbale = zfcp_qdio_sbale_req(req);
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
- fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd;
- fcp_cmnd_iu->fcp_lun = unit->fcp_lun;
- fcp_cmnd_iu->task_management_flags = tm_flags;
+ fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
+ zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags);
zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
if (!zfcp_fsf_req_send(req))
zfcp_fsf_req_free(req);
req = NULL;
out:
- spin_unlock_bh(&adapter->req_q_lock);
+ spin_unlock_bh(&qdio->req_q_lock);
return req;
}
struct zfcp_fsf_cfdc *fsf_cfdc)
{
struct qdio_buffer_element *sbale;
+ struct zfcp_qdio *qdio = adapter->qdio;
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);
- if (zfcp_fsf_req_sbal_get(adapter))
+ spin_lock_bh(&qdio->req_q_lock);
+ if (zfcp_fsf_req_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL);
+ req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL);
if (IS_ERR(req)) {
retval = -EPERM;
goto out;
req->handler = zfcp_fsf_control_file_handler;
- sbale = zfcp_qdio_sbale_req(req);
+ sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req);
sbale[0].flags |= direction;
bottom = &req->qtcb->bottom.support;
bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE;
bottom->option = fsf_cfdc->option;
- bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg,
+ bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
+ direction, fsf_cfdc->sg,
FSF_MAX_SBALS_PER_REQ);
if (bytes != ZFCP_CFDC_MAX_SIZE) {
zfcp_fsf_req_free(req);
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(&qdio->req_q_lock);
if (!retval) {
- wait_event(req->completion_wq,
- req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
+ wait_for_completion(&req->completion);
return req;
}
return ERR_PTR(retval);
}
+
+/**
+ * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO
+ * @adapter: pointer to struct zfcp_adapter
+ * @sbal_idx: response queue index of SBAL to be processed
+ */
+void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx)
+{
+ struct zfcp_adapter *adapter = qdio->adapter;
+ struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx];
+ struct qdio_buffer_element *sbale;
+ struct zfcp_fsf_req *fsf_req;
+ unsigned long req_id;
+ int idx;
+
+ for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) {
+
+ sbale = &sbal->element[idx];
+ req_id = (unsigned long) sbale->addr;
+ fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id);
+
+ if (!fsf_req)
+ /*
+ * Unknown request means that we have potentially memory
+ * corruption and must stop the machine immediately.
+ */
+ panic("error: unknown req_id (%lx) on adapter %s.\n",
+ req_id, dev_name(&adapter->ccw_device->dev));
+
+ fsf_req->qdio_req.sbal_response = sbal_idx;
+ fsf_req->qdio_req.qdio_inb_usage =
+ atomic_read(&qdio->resp_q.count);
+ zfcp_fsf_req_complete(fsf_req);
+
+ if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY))
+ break;
+ }
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff