* Copyright IBM Corporation 2002, 2008
*/
+#define KMSG_COMPONENT "zfcp"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/blktrace_api.h>
#include "zfcp_ext.h"
+static void zfcp_fsf_request_timeout_handler(unsigned long data)
+{
+ struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
+ zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 62,
+ NULL);
+}
+
+static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req,
+ unsigned long timeout)
+{
+ fsf_req->timer.function = zfcp_fsf_request_timeout_handler;
+ fsf_req->timer.data = (unsigned long) fsf_req->adapter;
+ fsf_req->timer.expires = jiffies + timeout;
+ add_timer(&fsf_req->timer);
+}
+
+static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req)
+{
+ BUG_ON(!fsf_req->erp_action);
+ fsf_req->timer.function = zfcp_erp_timeout_handler;
+ fsf_req->timer.data = (unsigned long) fsf_req->erp_action;
+ fsf_req->timer.expires = jiffies + 30 * HZ;
+ add_timer(&fsf_req->timer);
+}
+
/* association between FSF command and FSF QTCB type */
static u32 fsf_qtcb_type[] = {
[FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND,
[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);
}
req->handler(req);
if (req->erp_action)
- zfcp_erp_async_handler(req->erp_action, 0);
+ zfcp_erp_notify(req->erp_action, 0);
req->status |= ZFCP_STATUS_FSFREQ_COMPLETED;
if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP))
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_available(struct zfcp_adapter *adapter)
{
- spin_lock(&queue->lock);
- if (atomic_read(&queue->count))
+ if (atomic_read(&adapter->req_q.count) > 0)
return 1;
- spin_unlock(&queue->lock);
+ atomic_inc(&adapter->qdio_outb_full);
return 0;
}
static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
+ __releases(&adapter->req_q_lock)
+ __acquires(&adapter->req_q_lock)
{
- long ret;
struct zfcp_qdio_queue *req_q = &adapter->req_q;
+ long ret;
- spin_unlock(&req_q->lock);
+ if (atomic_read(&req_q->count) <= -REQUEST_LIST_SIZE)
+ return -EIO;
+ if (atomic_read(&req_q->count) > 0)
+ return 0;
+
+ atomic_dec(&req_q->count);
+ spin_unlock_bh(&adapter->req_q_lock);
ret = wait_event_interruptible_timeout(adapter->request_wq,
- zfcp_fsf_sbal_check(req_q), 5 * HZ);
+ atomic_read(&req_q->count) >= 0,
+ 5 * HZ);
+ spin_lock_bh(&adapter->req_q_lock);
+ atomic_inc(&req_q->count);
+
if (ret > 0)
return 0;
-
- spin_lock(&req_q->lock);
+ if (!ret)
+ atomic_inc(&adapter->qdio_outb_full);
return -EIO;
}
if (!req)
return NULL;
memset(req, 0, sizeof(*req));
+ req->pool = pool;
return req;
}
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;
static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
- struct zfcp_qdio_queue *req_q = &adapter->req_q;
+ unsigned long flags;
int idx;
/* put allocated FSF request into hash table */
- spin_lock(&adapter->req_list_lock);
+ 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(&adapter->req_list_lock);
+ spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+ req->qdio_outb_usage = atomic_read(&adapter->req_q.count);
req->issued = get_clock();
if (zfcp_qdio_send(req)) {
- /* Queues are down..... */
del_timer(&req->timer);
- spin_lock(&adapter->req_list_lock);
- zfcp_reqlist_remove(adapter, req);
- spin_unlock(&adapter->req_list_lock);
- /* undo changes in request queue made for this request */
- atomic_add(req->sbal_number, &req_q->count);
- req_q->first -= req->sbal_number;
- req_q->first += QDIO_MAX_BUFFERS_PER_Q;
- req_q->first %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */
+ 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_erp_adapter_reopen(adapter, 0, 116, req);
return -EIO;
}
{
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(&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_UNSOLICITED_STATUS,
ZFCP_REQ_NO_QTCB,
adapter->pool.fsf_req_status_read);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
zfcp_fsf_req_free(req);
zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL);
out:
- spin_unlock(&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);
- if (unlikely(IS_ERR(req)))
+ if (IS_ERR(req)) {
+ req = NULL;
goto out;
+ }
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
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;
send_ct->handler(send_ct->handler_data);
}
-static int zfcp_fsf_setup_sbals(struct zfcp_fsf_req *req,
- struct scatterlist *sg_req,
- struct scatterlist *sg_resp, int max_sbals)
+static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
+ struct scatterlist *sg_req,
+ struct scatterlist *sg_resp,
+ int max_sbals)
{
+ struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(req);
+ u32 feat = req->adapter->adapter_features;
int bytes;
+ if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) {
+ if (sg_req->length > PAGE_SIZE || sg_resp->length > PAGE_SIZE ||
+ !sg_is_last(sg_req) || !sg_is_last(sg_resp))
+ return -EOPNOTSUPP;
+
+ sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ;
+ sbale[2].addr = sg_virt(sg_req);
+ sbale[2].length = sg_req->length;
+ sbale[3].addr = sg_virt(sg_resp);
+ sbale[3].length = sg_resp->length;
+ sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY;
+ return 0;
+ }
+
bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
sg_req, max_sbals);
if (bytes <= 0)
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(&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_SEND_GENERIC,
ZFCP_REQ_AUTO_CLEANUP, pool);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
ret = PTR_ERR(req);
goto out;
}
- ret = zfcp_fsf_setup_sbals(req, ct->req, ct->resp,
- FSF_MAX_SBALS_PER_REQ);
+ ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp,
+ FSF_MAX_SBALS_PER_REQ);
if (ret)
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 = req;
req->erp_action = erp_action;
- zfcp_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
} else
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
if (erp_action)
erp_action->fsf_req = NULL;
out:
- spin_unlock(&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);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
ret = PTR_ERR(req);
goto out;
}
- ret = zfcp_fsf_setup_sbals(req, els->req, els->resp,
- FSF_MAX_SBALS_PER_ELS_REQ);
+ ret = zfcp_fsf_setup_ct_els_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(&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,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
req->handler = zfcp_fsf_exchange_config_data_handler;
erp_action->fsf_req = req;
- zfcp_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&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(&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_EXCHANGE_CONFIG_DATA,
0, NULL);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
- spin_unlock(&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(&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,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
req->erp_action = erp_action;
erp_action->fsf_req = req;
- zfcp_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&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(&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,
NULL);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
- spin_unlock(&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;
switch (header->fsf_status_qual.word[0]) {
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- 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);
- 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 (req->qtcb->bottom.support.els1_length >=
+ FSF_PLOGI_MIN_LEN) {
if (plogi->serv_param.wwpn != port->wwpn)
- atomic_clear_mask(ZFCP_STATUS_PORT_DID_DID,
- &port->status);
+ port->d_id = 0;
else {
port->wwnn = plogi->serv_param.wwnn;
zfcp_fc_plogi_evaluate(port, plogi);
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(&adapter->req_q.lock);
+ spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
FSF_QTCB_OPEN_PORT_WITH_DID,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
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_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&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(&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_PORT,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
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_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&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:
+ break;
+ 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(&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_PHYSICAL_PORT,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
atomic_set_mask(ZFCP_STATUS_PORT_PHYS_CLOSING,
&erp_action->port->status);
- zfcp_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&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(&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_OPEN_LUN,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
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_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&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(&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,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_erp);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
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_erp_start_timer(req);
+ zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
}
out:
- spin_unlock(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
return retval;
}
spin_unlock_irqrestore(&unit->latencies.lock, flags);
}
+#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;
+
+ 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 (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));
+}
+#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 = req->data;
+ 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];
unsigned long flags;
- if (unlikely(!scpnt))
- return;
-
read_lock_irqsave(&req->adapter->abort_lock, flags);
+ scpnt = req->data;
+ if (unlikely(!scpnt)) {
+ read_unlock_irqrestore(&req->adapter->abort_lock, flags);
+ return;
+ }
+
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
set_host_byte(scpnt, DID_SOFT_ERROR);
- set_driver_byte(scpnt, SUGGEST_RETRY);
goto skip_fsfstatus;
}
if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)
zfcp_fsf_req_latency(req);
+ 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);
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);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
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);
- if (unlikely(IS_ERR(req)))
+ if (IS_ERR(req)) {
+ req = NULL;
goto out;
+ }
req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
req->data = unit;
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(&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_cfdc->command, 0, NULL);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = -EPERM;
goto out;
}
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
- spin_unlock(&adapter->req_q.lock);
+ spin_unlock_bh(&adapter->req_q_lock);
if (!retval) {
wait_event(req->completion_wq,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff