Commit f44e5461 authored by Moore, Eric's avatar Moore, Eric Committed by James Bottomley

[SCSI] fusion - exposing raid components in mptsas

Suppport for exposing hidden raid components
for sg interface. The sdev->no_uld_attach flag
will set set accordingly.

The sas module supports adding/removing raid
volumes using online storage management application
interface.

This patch rely's on patch's provided to me
by Christoph Hellwig, that exports device_reprobe.
I will post those patch's on behalf of Christoph.
Signed-off-by: default avatarEric Moore <Eric.Moore@lsil.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent db9c9174
...@@ -104,6 +104,8 @@ struct mptsas_hotplug_event { ...@@ -104,6 +104,8 @@ struct mptsas_hotplug_event {
u16 handle; u16 handle;
u16 parent_handle; u16 parent_handle;
u8 phy_id; u8 phy_id;
u8 phys_disk_num;
u8 phys_disk_num_valid;
}; };
/* /*
...@@ -139,6 +141,7 @@ struct mptsas_phyinfo { ...@@ -139,6 +141,7 @@ struct mptsas_phyinfo {
struct mptsas_devinfo attached; /* point to attached device info */ struct mptsas_devinfo attached; /* point to attached device info */
struct sas_phy *phy; struct sas_phy *phy;
struct sas_rphy *rphy; struct sas_rphy *rphy;
struct scsi_target *starget;
}; };
struct mptsas_portinfo { struct mptsas_portinfo {
...@@ -388,6 +391,17 @@ mptsas_slave_alloc(struct scsi_device *sdev) ...@@ -388,6 +391,17 @@ mptsas_slave_alloc(struct scsi_device *sdev)
target_id = p->phy_info[i].attached.id; target_id = p->phy_info[i].attached.id;
vtarget->bus_id = p->phy_info[i].attached.channel; vtarget->bus_id = p->phy_info[i].attached.channel;
vdev->lun = sdev->lun; vdev->lun = sdev->lun;
p->phy_info[i].starget = sdev->sdev_target;
/*
* Exposing hidden disk (RAID)
*/
if (mptscsih_is_phys_disk(hd->ioc, target_id)) {
target_id = mptscsih_raid_id_to_num(hd,
target_id);
vdev->vtarget->tflags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
sdev->no_uld_attach = 1;
}
mutex_unlock(&hd->ioc->sas_topology_mutex); mutex_unlock(&hd->ioc->sas_topology_mutex);
goto out; goto out;
} }
...@@ -1378,10 +1392,24 @@ mptsas_scan_sas_topology(MPT_ADAPTER *ioc) ...@@ -1378,10 +1392,24 @@ mptsas_scan_sas_topology(MPT_ADAPTER *ioc)
{ {
u32 handle = 0xFFFF; u32 handle = 0xFFFF;
int index = 0; int index = 0;
int i;
mptsas_probe_hba_phys(ioc, &index); mptsas_probe_hba_phys(ioc, &index);
while (!mptsas_probe_expander_phys(ioc, &handle, &index)) while (!mptsas_probe_expander_phys(ioc, &handle, &index))
; ;
/*
Reporting RAID volumes.
*/
if (!ioc->raid_data.pIocPg2)
goto out;
if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
goto out;
for (i=0; i<ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
scsi_add_device(ioc->sh, ioc->num_ports,
ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0);
}
out:
return;
} }
static struct mptsas_phyinfo * static struct mptsas_phyinfo *
...@@ -1460,6 +1488,20 @@ mptscsih_sas_persist_clear_table(void * arg) ...@@ -1460,6 +1488,20 @@ mptscsih_sas_persist_clear_table(void * arg)
mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT); mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT);
} }
static void
mptsas_reprobe_lun(struct scsi_device *sdev, void *data)
{
sdev->no_uld_attach = data ? 1 : 0;
scsi_device_reprobe(sdev);
}
static void
mptsas_reprobe_target(struct scsi_target *starget, int uld_attach)
{
starget_for_each_device(starget, uld_attach ? (void *)1 : NULL,
mptsas_reprobe_lun);
}
static void static void
mptsas_hotplug_work(void *arg) mptsas_hotplug_work(void *arg)
{ {
...@@ -1470,14 +1512,33 @@ mptsas_hotplug_work(void *arg) ...@@ -1470,14 +1512,33 @@ mptsas_hotplug_work(void *arg)
struct scsi_device *sdev; struct scsi_device *sdev;
char *ds = NULL; char *ds = NULL;
struct mptsas_devinfo sas_device; struct mptsas_devinfo sas_device;
VirtTarget *vtarget;
switch (ev->event_type) { switch (ev->event_type) {
case MPTSAS_DEL_DEVICE: case MPTSAS_DEL_DEVICE:
phy_info = mptsas_find_phyinfo_by_target(ioc, ev->id); phy_info = mptsas_find_phyinfo_by_target(ioc, ev->id);
if (!phy_info) { /*
printk("mptsas: remove event for non-existant PHY.\n"); * Sanity checks, for non-existing phys and remote rphys.
*/
if (!phy_info)
break; break;
if (!phy_info->rphy)
break;
if (phy_info->starget) {
vtarget = phy_info->starget->hostdata;
if (!vtarget)
break;
/*
* Handling RAID components
*/
if (ev->phys_disk_num_valid) {
vtarget->target_id = ev->phys_disk_num;
vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
mptsas_reprobe_target(vtarget->starget, 1);
break;
}
} }
if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET) if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET)
...@@ -1491,11 +1552,10 @@ mptsas_hotplug_work(void *arg) ...@@ -1491,11 +1552,10 @@ mptsas_hotplug_work(void *arg)
"removing %s device, channel %d, id %d, phy %d\n", "removing %s device, channel %d, id %d, phy %d\n",
ioc->name, ds, ev->channel, ev->id, phy_info->phy_id); ioc->name, ds, ev->channel, ev->id, phy_info->phy_id);
if (phy_info->rphy) {
sas_rphy_delete(phy_info->rphy); sas_rphy_delete(phy_info->rphy);
memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo)); memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
phy_info->rphy = NULL; phy_info->rphy = NULL;
} phy_info->starget = NULL;
break; break;
case MPTSAS_ADD_DEVICE: case MPTSAS_ADD_DEVICE:
...@@ -1509,16 +1569,27 @@ mptsas_hotplug_work(void *arg) ...@@ -1509,16 +1569,27 @@ mptsas_hotplug_work(void *arg)
phy_info = mptsas_find_phyinfo_by_parent(ioc, phy_info = mptsas_find_phyinfo_by_parent(ioc,
sas_device.handle_parent, sas_device.phy_id); sas_device.handle_parent, sas_device.phy_id);
if (!phy_info) { if (!phy_info)
printk("mptsas: add event for non-existant PHY.\n");
break; break;
} if (phy_info->starget) {
vtarget = phy_info->starget->hostdata;
if (phy_info->rphy) { if (!vtarget)
printk("mptsas: trying to add existing device.\n"); break;
/*
* Handling RAID components
*/
if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
vtarget->tflags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
vtarget->target_id = ev->id;
mptsas_reprobe_target(phy_info->starget, 0);
}
break; break;
} }
if (phy_info->rphy)
break;
memcpy(&phy_info->attached, &sas_device, memcpy(&phy_info->attached, &sas_device,
sizeof(struct mptsas_devinfo)); sizeof(struct mptsas_devinfo));
...@@ -1672,6 +1743,9 @@ mptscsih_send_raid_event(MPT_ADAPTER *ioc, ...@@ -1672,6 +1743,9 @@ mptscsih_send_raid_event(MPT_ADAPTER *ioc,
ev->event_type = MPTSAS_ADD_DEVICE; ev->event_type = MPTSAS_ADD_DEVICE;
break; break;
case MPI_EVENT_RAID_RC_PHYSDISK_CREATED: case MPI_EVENT_RAID_RC_PHYSDISK_CREATED:
ioc->raid_data.isRaid = 1;
ev->phys_disk_num_valid = 1;
ev->phys_disk_num = raid_event_data->PhysDiskNum;
ev->event_type = MPTSAS_DEL_DEVICE; ev->event_type = MPTSAS_DEL_DEVICE;
break; break;
case MPI_EVENT_RAID_RC_VOLUME_DELETED: case MPI_EVENT_RAID_RC_VOLUME_DELETED:
...@@ -1932,20 +2006,6 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) ...@@ -1932,20 +2006,6 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
mptsas_scan_sas_topology(ioc); mptsas_scan_sas_topology(ioc);
/*
Reporting RAID volumes.
*/
if (!ioc->raid_data.pIocPg2)
return 0;
if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
return 0;
for (ii=0;ii<ioc->raid_data.pIocPg2->NumActiveVolumes;ii++) {
scsi_add_device(sh,
ioc->num_ports,
ioc->raid_data.pIocPg2->RaidVolume[ii].VolumeID,
0);
}
return 0; return 0;
out_mptsas_probe: out_mptsas_probe:
......
...@@ -1235,7 +1235,8 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) ...@@ -1235,7 +1235,8 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
return SCSI_MLQUEUE_HOST_BUSY; return SCSI_MLQUEUE_HOST_BUSY;
} }
if (vdev->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT && if ((hd->ioc->bus_type == SPI) &&
vdev->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT &&
mptscsih_raid_id_to_num(hd, SCpnt->device->id) < 0) { mptscsih_raid_id_to_num(hd, SCpnt->device->id) < 0) {
SCpnt->result = DID_NO_CONNECT << 16; SCpnt->result = DID_NO_CONNECT << 16;
done(SCpnt); done(SCpnt);
...@@ -2103,6 +2104,24 @@ mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, ...@@ -2103,6 +2104,24 @@ mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
return 0; return 0;
} }
/* Search IOC page 3 to determine if this is hidden physical disk
*
*/
int
mptscsih_is_phys_disk(MPT_ADAPTER *ioc, int id)
{
int i;
if (!ioc->raid_data.isRaid || !ioc->raid_data.pIocPg3)
return 0;
for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
if (id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID)
return 1;
}
return 0;
}
EXPORT_SYMBOL(mptscsih_is_phys_disk);
int int
mptscsih_raid_id_to_num(MPT_SCSI_HOST *hd, uint physdiskid) mptscsih_raid_id_to_num(MPT_SCSI_HOST *hd, uint physdiskid)
{ {
......
...@@ -100,3 +100,4 @@ extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth); ...@@ -100,3 +100,4 @@ extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth);
extern void mptscsih_timer_expired(unsigned long data); extern void mptscsih_timer_expired(unsigned long data);
extern int mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout); extern int mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout);
extern int mptscsih_raid_id_to_num(MPT_SCSI_HOST *hd, uint physdiskid); extern int mptscsih_raid_id_to_num(MPT_SCSI_HOST *hd, uint physdiskid);
extern int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, int id);
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