diff options
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 2 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 3 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 185 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs_adapter.c | 4 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs_port.c | 4 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs_unit.c | 2 |
6 files changed, 136 insertions, 64 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 5e84c5aa7779..167fef39d8a7 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -1125,6 +1125,8 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter) zfcp_free_low_mem_buffers(adapter); /* free memory of adapter data structure and queues */ zfcp_qdio_free_queues(adapter); + kfree(adapter->fc_stats); + kfree(adapter->stats_reset_data); ZFCP_LOG_TRACE("freeing adapter structure\n"); kfree(adapter); out: diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index d81b737d68cc..3785b3c98a58 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -978,6 +978,9 @@ struct zfcp_adapter { struct zfcp_adapter_mempool pool; /* Adapter memory pools */ struct qdio_initialize qdio_init_data; /* for qdio_establish */ struct device generic_services; /* directory for WKA ports */ + struct fc_host_statistics *fc_stats; + struct fsf_qtcb_bottom_port *stats_reset_data; + unsigned long stats_reset; }; /* diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 66608d13a634..5ca0992e97f4 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -49,8 +49,6 @@ static int zfcp_task_management_function(struct zfcp_unit *, u8, static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *, int, scsi_id_t, scsi_lun_t); -static struct zfcp_port *zfcp_port_lookup(struct zfcp_adapter *, int, - scsi_id_t); static struct device_attribute *zfcp_sysfs_sdev_attrs[]; @@ -406,18 +404,6 @@ zfcp_unit_lookup(struct zfcp_adapter *adapter, int channel, scsi_id_t id, return retval; } -static struct zfcp_port * -zfcp_port_lookup(struct zfcp_adapter *adapter, int channel, scsi_id_t id) -{ - struct zfcp_port *port; - - list_for_each_entry(port, &adapter->port_list_head, list) { - if (port->rport && (id == port->rport->scsi_target_id)) - return port; - } - return (struct zfcp_port *) NULL; -} - /** * zfcp_scsi_eh_abort_handler - abort the specified SCSI command * @scpnt: pointer to scsi_cmnd to be aborted @@ -731,61 +717,148 @@ zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *adapter) /* * Support functions for FC transport class */ -static void -zfcp_get_port_id(struct scsi_target *starget) +static struct fc_host_statistics* +zfcp_init_fc_host_stats(struct zfcp_adapter *adapter) { - struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); - struct zfcp_adapter *adapter = (struct zfcp_adapter *)shost->hostdata[0]; - struct zfcp_port *port; - unsigned long flags; + struct fc_host_statistics *fc_stats; - read_lock_irqsave(&zfcp_data.config_lock, flags); - port = zfcp_port_lookup(adapter, starget->channel, starget->id); - if (port) - fc_starget_port_id(starget) = port->d_id; - else - fc_starget_port_id(starget) = -1; - read_unlock_irqrestore(&zfcp_data.config_lock, flags); + if (!adapter->fc_stats) { + fc_stats = kmalloc(sizeof(*fc_stats), GFP_KERNEL); + if (!fc_stats) + return NULL; + adapter->fc_stats = fc_stats; /* freed in adater_dequeue */ + } + memset(adapter->fc_stats, 0, sizeof(*adapter->fc_stats)); + return adapter->fc_stats; } static void -zfcp_get_port_name(struct scsi_target *starget) +zfcp_adjust_fc_host_stats(struct fc_host_statistics *fc_stats, + struct fsf_qtcb_bottom_port *data, + struct fsf_qtcb_bottom_port *old) { - struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); - struct zfcp_adapter *adapter = (struct zfcp_adapter *)shost->hostdata[0]; - struct zfcp_port *port; - unsigned long flags; + fc_stats->seconds_since_last_reset = data->seconds_since_last_reset - + old->seconds_since_last_reset; + fc_stats->tx_frames = data->tx_frames - old->tx_frames; + fc_stats->tx_words = data->tx_words - old->tx_words; + fc_stats->rx_frames = data->rx_frames - old->rx_frames; + fc_stats->rx_words = data->rx_words - old->rx_words; + fc_stats->lip_count = data->lip - old->lip; + fc_stats->nos_count = data->nos - old->nos; + fc_stats->error_frames = data->error_frames - old->error_frames; + fc_stats->dumped_frames = data->dumped_frames - old->dumped_frames; + fc_stats->link_failure_count = data->link_failure - old->link_failure; + fc_stats->loss_of_sync_count = data->loss_of_sync - old->loss_of_sync; + fc_stats->loss_of_signal_count = data->loss_of_signal - + old->loss_of_signal; + fc_stats->prim_seq_protocol_err_count = data->psp_error_counts - + old->psp_error_counts; + fc_stats->invalid_tx_word_count = data->invalid_tx_words - + old->invalid_tx_words; + fc_stats->invalid_crc_count = data->invalid_crcs - old->invalid_crcs; + fc_stats->fcp_input_requests = data->input_requests - + old->input_requests; + fc_stats->fcp_output_requests = data->output_requests - + old->output_requests; + fc_stats->fcp_control_requests = data->control_requests - + old->control_requests; + fc_stats->fcp_input_megabytes = data->input_mb - old->input_mb; + fc_stats->fcp_output_megabytes = data->output_mb - old->output_mb; +} - read_lock_irqsave(&zfcp_data.config_lock, flags); - port = zfcp_port_lookup(adapter, starget->channel, starget->id); - if (port) - fc_starget_port_name(starget) = port->wwpn; - else - fc_starget_port_name(starget) = -1; - read_unlock_irqrestore(&zfcp_data.config_lock, flags); +static void +zfcp_set_fc_host_stats(struct fc_host_statistics *fc_stats, + struct fsf_qtcb_bottom_port *data) +{ + fc_stats->seconds_since_last_reset = data->seconds_since_last_reset; + fc_stats->tx_frames = data->tx_frames; + fc_stats->tx_words = data->tx_words; + fc_stats->rx_frames = data->rx_frames; + fc_stats->rx_words = data->rx_words; + fc_stats->lip_count = data->lip; + fc_stats->nos_count = data->nos; + fc_stats->error_frames = data->error_frames; + fc_stats->dumped_frames = data->dumped_frames; + fc_stats->link_failure_count = data->link_failure; + fc_stats->loss_of_sync_count = data->loss_of_sync; + fc_stats->loss_of_signal_count = data->loss_of_signal; + fc_stats->prim_seq_protocol_err_count = data->psp_error_counts; + fc_stats->invalid_tx_word_count = data->invalid_tx_words; + fc_stats->invalid_crc_count = data->invalid_crcs; + fc_stats->fcp_input_requests = data->input_requests; + fc_stats->fcp_output_requests = data->output_requests; + fc_stats->fcp_control_requests = data->control_requests; + fc_stats->fcp_input_megabytes = data->input_mb; + fc_stats->fcp_output_megabytes = data->output_mb; +} + +/** + * zfcp_get_fc_host_stats - provide fc_host_statistics for scsi_transport_fc + * + * assumption: scsi_transport_fc synchronizes calls of + * get_fc_host_stats and reset_fc_host_stats + * (XXX to be checked otherwise introduce locking) + */ +static struct fc_host_statistics * +zfcp_get_fc_host_stats(struct Scsi_Host *shost) +{ + struct zfcp_adapter *adapter; + struct fc_host_statistics *fc_stats; + struct fsf_qtcb_bottom_port *data; + int ret; + + adapter = (struct zfcp_adapter *)shost->hostdata[0]; + fc_stats = zfcp_init_fc_host_stats(adapter); + if (!fc_stats) + return NULL; + + data = kmalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return NULL; + memset(data, 0, sizeof(*data)); + + ret = zfcp_fsf_exchange_port_data(NULL, adapter, data); + if (ret) { + kfree(data); + return NULL; /* XXX return zeroed fc_stats? */ + } + + if (adapter->stats_reset && + ((jiffies/HZ - adapter->stats_reset) < + data->seconds_since_last_reset)) { + zfcp_adjust_fc_host_stats(fc_stats, data, + adapter->stats_reset_data); + } else + zfcp_set_fc_host_stats(fc_stats, data); + + kfree(data); + return fc_stats; } static void -zfcp_get_node_name(struct scsi_target *starget) +zfcp_reset_fc_host_stats(struct Scsi_Host *shost) { - struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); - struct zfcp_adapter *adapter = (struct zfcp_adapter *)shost->hostdata[0]; - struct zfcp_port *port; - unsigned long flags; + struct zfcp_adapter *adapter; + struct fsf_qtcb_bottom_port *data, *old_data; + int ret; - read_lock_irqsave(&zfcp_data.config_lock, flags); - port = zfcp_port_lookup(adapter, starget->channel, starget->id); - if (port) - fc_starget_node_name(starget) = port->wwnn; - else - fc_starget_node_name(starget) = -1; - read_unlock_irqrestore(&zfcp_data.config_lock, flags); + adapter = (struct zfcp_adapter *)shost->hostdata[0]; + data = kmalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return; + memset(data, 0, sizeof(*data)); + + ret = zfcp_fsf_exchange_port_data(NULL, adapter, data); + if (ret == 0) { + adapter->stats_reset = jiffies/HZ; + old_data = adapter->stats_reset_data; + adapter->stats_reset_data = data; /* finally freed in + adater_dequeue */ + kfree(old_data); + } } struct fc_function_template zfcp_transport_functions = { - .get_starget_port_id = zfcp_get_port_id, - .get_starget_port_name = zfcp_get_port_name, - .get_starget_node_name = zfcp_get_node_name, .show_starget_port_id = 1, .show_starget_port_name = 1, .show_starget_node_name = 1, @@ -795,6 +868,10 @@ struct fc_function_template zfcp_transport_functions = { .show_host_supported_classes = 1, .show_host_maxframe_size = 1, .show_host_serial_number = 1, + .get_fc_host_stats = zfcp_get_fc_host_stats, + .reset_fc_host_stats = zfcp_reset_fc_host_stats, + /* no functions registered for following dynamic attributes but + directly set by LLDD */ .show_host_speed = 1, .show_host_port_id = 1, }; diff --git a/drivers/s390/scsi/zfcp_sysfs_adapter.c b/drivers/s390/scsi/zfcp_sysfs_adapter.c index 0cd435280e7d..c85df9c016ae 100644 --- a/drivers/s390/scsi/zfcp_sysfs_adapter.c +++ b/drivers/s390/scsi/zfcp_sysfs_adapter.c @@ -69,12 +69,10 @@ ZFCP_DEFINE_ADAPTER_ATTR(physical_wwpn, "0x%016llx\n", adapter->physical_wwpn); ZFCP_DEFINE_ADAPTER_ATTR(physical_s_id, "0x%06x\n", adapter->physical_s_id); ZFCP_DEFINE_ADAPTER_ATTR(card_version, "0x%04x\n", adapter->hydra_version); ZFCP_DEFINE_ADAPTER_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version); -ZFCP_DEFINE_ADAPTER_ATTR(fc_service_class, "%d\n", adapter->fc_service_class); ZFCP_DEFINE_ADAPTER_ATTR(fc_topology, "%s\n", fc_topologies[adapter->fc_topology]); ZFCP_DEFINE_ADAPTER_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version); -ZFCP_DEFINE_ADAPTER_ATTR(scsi_host_no, "0x%x\n", adapter->scsi_host_no); ZFCP_DEFINE_ADAPTER_ATTR(in_recovery, "%d\n", atomic_test_mask (ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status)); @@ -259,9 +257,7 @@ static struct attribute *zfcp_adapter_attrs[] = { &dev_attr_physical_s_id.attr, &dev_attr_card_version.attr, &dev_attr_lic_version.attr, - &dev_attr_fc_service_class.attr, &dev_attr_fc_topology.attr, - &dev_attr_scsi_host_no.attr, &dev_attr_status.attr, &dev_attr_hardware_version.attr, NULL diff --git a/drivers/s390/scsi/zfcp_sysfs_port.c b/drivers/s390/scsi/zfcp_sysfs_port.c index c55e82d91deb..3924eb38805c 100644 --- a/drivers/s390/scsi/zfcp_sysfs_port.c +++ b/drivers/s390/scsi/zfcp_sysfs_port.c @@ -65,8 +65,6 @@ static ssize_t zfcp_sysfs_port_##_name##_show(struct device *dev, struct device_ static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_port_##_name##_show, NULL); ZFCP_DEFINE_PORT_ATTR(status, "0x%08x\n", atomic_read(&port->status)); -ZFCP_DEFINE_PORT_ATTR(wwnn, "0x%016llx\n", port->wwnn); -ZFCP_DEFINE_PORT_ATTR(d_id, "0x%06x\n", port->d_id); ZFCP_DEFINE_PORT_ATTR(in_recovery, "%d\n", atomic_test_mask (ZFCP_STATUS_COMMON_ERP_INUSE, &port->status)); ZFCP_DEFINE_PORT_ATTR(access_denied, "%d\n", atomic_test_mask @@ -245,8 +243,6 @@ static struct attribute *zfcp_port_common_attrs[] = { &dev_attr_failed.attr, &dev_attr_in_recovery.attr, &dev_attr_status.attr, - &dev_attr_wwnn.attr, - &dev_attr_d_id.attr, &dev_attr_access_denied.attr, NULL }; diff --git a/drivers/s390/scsi/zfcp_sysfs_unit.c b/drivers/s390/scsi/zfcp_sysfs_unit.c index 0556642c9e1d..2f50815f65c7 100644 --- a/drivers/s390/scsi/zfcp_sysfs_unit.c +++ b/drivers/s390/scsi/zfcp_sysfs_unit.c @@ -65,7 +65,6 @@ static ssize_t zfcp_sysfs_unit_##_name##_show(struct device *dev, struct device_ static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_unit_##_name##_show, NULL); ZFCP_DEFINE_UNIT_ATTR(status, "0x%08x\n", atomic_read(&unit->status)); -ZFCP_DEFINE_UNIT_ATTR(scsi_lun, "0x%x\n", unit->scsi_lun); ZFCP_DEFINE_UNIT_ATTR(in_recovery, "%d\n", atomic_test_mask (ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status)); ZFCP_DEFINE_UNIT_ATTR(access_denied, "%d\n", atomic_test_mask @@ -138,7 +137,6 @@ static DEVICE_ATTR(failed, S_IWUSR | S_IRUGO, zfcp_sysfs_unit_failed_show, zfcp_sysfs_unit_failed_store); static struct attribute *zfcp_unit_attrs[] = { - &dev_attr_scsi_lun.attr, &dev_attr_failed.attr, &dev_attr_in_recovery.attr, &dev_attr_status.attr, |