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path: root/drivers/scsi/mpt2sas/mpt2sas_scsih.c
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Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c266
1 files changed, 241 insertions, 25 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index efabea1a3ce4..c7ec3f174782 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -52,6 +52,7 @@
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
+#include <linux/raid_class.h>
#include "mpt2sas_base.h"
@@ -133,6 +134,9 @@ struct fw_event_work {
void *event_data;
};
+/* raid transport support */
+static struct raid_template *mpt2sas_raid_template;
+
/**
* struct _scsi_io_transfer - scsi io transfer
* @handle: sas device handle (assigned by firmware)
@@ -1305,7 +1309,6 @@ _scsih_slave_alloc(struct scsi_device *sdev)
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_target *starget;
struct _raid_device *raid_device;
- struct _sas_device *sas_device;
unsigned long flags;
sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
@@ -1332,21 +1335,8 @@ _scsih_slave_alloc(struct scsi_device *sdev)
if (raid_device)
raid_device->sdev = sdev; /* raid is single lun */
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
- } else {
- /* set TLR bit for SSP devices */
- if (!(ioc->facts.IOCCapabilities &
- MPI2_IOCFACTS_CAPABILITY_TLR))
- goto out;
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_device_priv_data->sas_target->sas_address);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device && sas_device->device_info &
- MPI2_SAS_DEVICE_INFO_SSP_TARGET)
- sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
}
- out:
return 0;
}
@@ -1419,6 +1409,140 @@ _scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
}
/**
+ * _scsih_is_raid - return boolean indicating device is raid volume
+ * @dev the device struct object
+ */
+static int
+_scsih_is_raid(struct device *dev)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+
+ return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
+}
+
+/**
+ * _scsih_get_resync - get raid volume resync percent complete
+ * @dev the device struct object
+ */
+static void
+_scsih_get_resync(struct device *dev)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
+ static struct _raid_device *raid_device;
+ unsigned long flags;
+ Mpi2RaidVolPage0_t vol_pg0;
+ Mpi2ConfigReply_t mpi_reply;
+ u32 volume_status_flags;
+ u8 percent_complete = 0;
+
+ spin_lock_irqsave(&ioc->raid_device_lock, flags);
+ raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
+ sdev->channel);
+ spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+ if (!raid_device)
+ goto out;
+
+ if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
+ MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
+ sizeof(Mpi2RaidVolPage0_t))) {
+ printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__);
+ goto out;
+ }
+
+ volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
+ if (volume_status_flags & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
+ percent_complete = raid_device->percent_complete;
+ out:
+ raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
+}
+
+/**
+ * _scsih_get_state - get raid volume level
+ * @dev the device struct object
+ */
+static void
+_scsih_get_state(struct device *dev)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
+ static struct _raid_device *raid_device;
+ unsigned long flags;
+ Mpi2RaidVolPage0_t vol_pg0;
+ Mpi2ConfigReply_t mpi_reply;
+ u32 volstate;
+ enum raid_state state = RAID_STATE_UNKNOWN;
+
+ spin_lock_irqsave(&ioc->raid_device_lock, flags);
+ raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
+ sdev->channel);
+ spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+ if (!raid_device)
+ goto out;
+
+ if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
+ MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
+ sizeof(Mpi2RaidVolPage0_t))) {
+ printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__);
+ goto out;
+ }
+
+ volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
+ if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
+ state = RAID_STATE_RESYNCING;
+ goto out;
+ }
+
+ switch (vol_pg0.VolumeState) {
+ case MPI2_RAID_VOL_STATE_OPTIMAL:
+ case MPI2_RAID_VOL_STATE_ONLINE:
+ state = RAID_STATE_ACTIVE;
+ break;
+ case MPI2_RAID_VOL_STATE_DEGRADED:
+ state = RAID_STATE_DEGRADED;
+ break;
+ case MPI2_RAID_VOL_STATE_FAILED:
+ case MPI2_RAID_VOL_STATE_MISSING:
+ state = RAID_STATE_OFFLINE;
+ break;
+ }
+ out:
+ raid_set_state(mpt2sas_raid_template, dev, state);
+}
+
+/**
+ * _scsih_set_level - set raid level
+ * @sdev: scsi device struct
+ * @raid_device: raid_device object
+ */
+static void
+_scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device)
+{
+ enum raid_level level = RAID_LEVEL_UNKNOWN;
+
+ switch (raid_device->volume_type) {
+ case MPI2_RAID_VOL_TYPE_RAID0:
+ level = RAID_LEVEL_0;
+ break;
+ case MPI2_RAID_VOL_TYPE_RAID10:
+ level = RAID_LEVEL_10;
+ break;
+ case MPI2_RAID_VOL_TYPE_RAID1E:
+ level = RAID_LEVEL_1E;
+ break;
+ case MPI2_RAID_VOL_TYPE_RAID1:
+ level = RAID_LEVEL_1;
+ break;
+ }
+
+ raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
+}
+
+/**
* _scsih_get_volume_capabilities - volume capabilities
* @ioc: per adapter object
* @sas_device: the raid_device object
@@ -1479,6 +1603,32 @@ _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
}
/**
+ * _scsih_enable_tlr - setting TLR flags
+ * @ioc: per adapter object
+ * @sdev: scsi device struct
+ *
+ * Enabling Transaction Layer Retries for tape devices when
+ * vpd page 0x90 is present
+ *
+ */
+static void
+_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
+{
+ /* only for TAPE */
+ if (sdev->type != TYPE_TAPE)
+ return;
+
+ if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
+ return;
+
+ sas_enable_tlr(sdev);
+ sdev_printk(KERN_INFO, sdev, "TLR %s\n",
+ sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
+ return;
+
+}
+
+/**
* _scsih_slave_configure - device configure routine.
* @sdev: scsi device struct
*
@@ -1574,6 +1724,8 @@ _scsih_slave_configure(struct scsi_device *sdev)
(unsigned long long)raid_device->wwid,
raid_device->num_pds, ds);
_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
+ /* raid transport support */
+ _scsih_set_level(sdev, raid_device);
return 0;
}
@@ -1621,8 +1773,10 @@ _scsih_slave_configure(struct scsi_device *sdev)
_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
- if (ssp_target)
+ if (ssp_target) {
sas_read_port_mode_page(sdev);
+ _scsih_enable_tlr(ioc, sdev);
+ }
return 0;
}
@@ -2908,8 +3062,9 @@ _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
} else
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
-
- if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
+ /* Make sure Device is not raid volume */
+ if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
+ sas_is_tlr_enabled(scmd->device))
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
@@ -3298,10 +3453,12 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
if (!sas_device_priv_data->tlr_snoop_check) {
sas_device_priv_data->tlr_snoop_check++;
- if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
- response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
- sas_device_priv_data->flags &=
- ~MPT_DEVICE_TLR_ON;
+ if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
+ sas_is_tlr_enabled(scmd->device) &&
+ response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
+ sas_disable_tlr(scmd->device);
+ sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
+ }
}
xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
@@ -5170,11 +5327,33 @@ static void
_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
+ Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
+ static struct _raid_device *raid_device;
+ unsigned long flags;
+ u16 handle;
+
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_operation_status_event_debug(ioc,
- fw_event->event_data);
+ event_data);
#endif
+
+ /* code added for raid transport support */
+ if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
+
+ handle = le16_to_cpu(event_data->VolDevHandle);
+
+ spin_lock_irqsave(&ioc->raid_device_lock, flags);
+ raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
+ spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+ if (!raid_device)
+ return;
+
+ if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC)
+ raid_device->percent_complete =
+ event_data->PercentComplete;
+ }
}
/**
@@ -5998,6 +6177,8 @@ _scsih_remove(struct pci_dev *pdev)
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
+ struct _raid_device *raid_device, *next;
+ struct MPT2SAS_TARGET *sas_target_priv_data;
struct workqueue_struct *wq;
unsigned long flags;
@@ -6011,6 +6192,21 @@ _scsih_remove(struct pci_dev *pdev)
if (wq)
destroy_workqueue(wq);
+ /* release all the volumes */
+ list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
+ list) {
+ if (raid_device->starget) {
+ sas_target_priv_data =
+ raid_device->starget->hostdata;
+ sas_target_priv_data->deleted = 1;
+ scsi_remove_target(&raid_device->starget->dev);
+ }
+ printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
+ "(0x%016llx)\n", ioc->name, raid_device->handle,
+ (unsigned long long) raid_device->wwid);
+ _scsih_raid_device_remove(ioc, raid_device);
+ }
+
/* free ports attached to the sas_host */
retry_again:
list_for_each_entry(mpt2sas_port,
@@ -6373,6 +6569,13 @@ static struct pci_driver scsih_driver = {
#endif
};
+/* raid transport support */
+static struct raid_function_template mpt2sas_raid_functions = {
+ .cookie = &scsih_driver_template,
+ .is_raid = _scsih_is_raid,
+ .get_resync = _scsih_get_resync,
+ .get_state = _scsih_get_state,
+};
/**
* _scsih_init - main entry point for this driver.
@@ -6392,6 +6595,12 @@ _scsih_init(void)
sas_attach_transport(&mpt2sas_transport_functions);
if (!mpt2sas_transport_template)
return -ENODEV;
+ /* raid transport support */
+ mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
+ if (!mpt2sas_raid_template) {
+ sas_release_transport(mpt2sas_transport_template);
+ return -ENODEV;
+ }
mpt2sas_base_initialize_callback_handler();
@@ -6426,8 +6635,11 @@ _scsih_init(void)
mpt2sas_ctl_init();
error = pci_register_driver(&scsih_driver);
- if (error)
+ if (error) {
+ /* raid transport support */
+ raid_class_release(mpt2sas_raid_template);
sas_release_transport(mpt2sas_transport_template);
+ }
return error;
}
@@ -6445,7 +6657,8 @@ _scsih_exit(void)
pci_unregister_driver(&scsih_driver);
- sas_release_transport(mpt2sas_transport_template);
+ mpt2sas_ctl_exit();
+
mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
mpt2sas_base_release_callback_handler(tm_cb_idx);
mpt2sas_base_release_callback_handler(base_cb_idx);
@@ -6457,7 +6670,10 @@ _scsih_exit(void)
mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
- mpt2sas_ctl_exit();
+ /* raid transport support */
+ raid_class_release(mpt2sas_raid_template);
+ sas_release_transport(mpt2sas_transport_template);
+
}
module_init(_scsih_init);