[SCSI] mpt2sas: Driver will use sas address instead of handle as a lookup
The device driver was not handling updating device handles in all cases
across diag resets. To fix this issue, the driver is converted to using sas
address instead of handle as a lookup reference to the parent expander or
sas_host. Also, for both expanders and sas host, the phy handle will be one
unique handle. In the sas host case, the phy handle can be different for
every phy, so the change is to set the handle to the handle of the first
phy; every phy will be one single sas address(phy 0) instead of a different
sas address for every phy(previous implementation). So making one consistent
sas address for all the direct attachedports to the sas host, will make it
better user experience when using udev /dev/disk/by-path dev nodes
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Eric Moore <Eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index 0cf6bc2..fa99ff2 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -278,7 +278,7 @@
* @sas_address: device sas address
* @device_name: retrieved from the SAS IDENTIFY frame.
* @handle: device handle
- * @parent_handle: handle to parent device
+ * @sas_address_parent: sas address of parent expander or sas host
* @enclosure_handle: enclosure handle
* @enclosure_logical_id: enclosure logical identifier
* @volume_handle: volume handle (valid when hidden raid member)
@@ -296,7 +296,7 @@
u64 sas_address;
u64 device_name;
u16 handle;
- u16 parent_handle;
+ u64 sas_address_parent;
u16 enclosure_handle;
u64 enclosure_logical_id;
u16 volume_handle;
@@ -352,8 +352,6 @@
/**
* struct _sas_port - wide/narrow sas port information
* @port_list: list of ports belonging to expander
- * @handle: device handle for this port
- * @sas_address: sas address of this port
* @num_phys: number of phys belonging to this port
* @remote_identify: attached device identification
* @rphy: sas transport rphy object
@@ -362,8 +360,6 @@
*/
struct _sas_port {
struct list_head port_list;
- u16 handle;
- u64 sas_address;
u8 num_phys;
struct sas_identify remote_identify;
struct sas_rphy *rphy;
@@ -398,7 +394,7 @@
* @num_phys: number phys belonging to this sas_host/expander
* @sas_address: sas address of this sas_host/expander
* @handle: handle for this sas_host/expander
- * @parent_handle: parent handle
+ * @sas_address_parent: sas address of parent expander or sas host
* @enclosure_handle: handle for this a member of an enclosure
* @device_info: bitwise defining capabilities of this sas_host/expander
* @responding: used in _scsih_expander_device_mark_responding
@@ -411,7 +407,7 @@
u8 num_phys;
u64 sas_address;
u16 handle;
- u16 parent_handle;
+ u64 sas_address_parent;
u16 enclosure_handle;
u64 enclosure_logical_id;
u8 responding;
@@ -890,15 +886,15 @@
u8 mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply);
struct _sas_port *mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc,
- u16 handle, u16 parent_handle);
+ u16 handle, u64 sas_address);
void mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
- u16 parent_handle);
+ u64 sas_address_parent);
int mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
*mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev);
int mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
*mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev);
-void mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc, u16 handle,
- u16 attached_handle, u8 phy_number, u8 link_rate);
+void mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
+ u64 sas_address, u16 handle, u8 phy_number, u8 link_rate);
extern struct sas_function_template mpt2sas_transport_functions;
extern struct scsi_transport_template *mpt2sas_transport_template;
extern int scsi_internal_device_block(struct scsi_device *sdev);
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 86ab32d..8822cda 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -317,6 +317,47 @@
}
/**
+ * _scsih_get_sas_address - set the sas_address for given device handle
+ * @handle: device handle
+ * @sas_address: sas address
+ *
+ * Returns 0 success, non-zero when failure
+ */
+static int
+_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
+ u64 *sas_address)
+{
+ Mpi2SasDevicePage0_t sas_device_pg0;
+ Mpi2ConfigReply_t mpi_reply;
+ u32 ioc_status;
+
+ if (handle <= ioc->sas_hba.num_phys) {
+ *sas_address = ioc->sas_hba.sas_address;
+ return 0;
+ } else
+ *sas_address = 0;
+
+ if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+ MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
+ printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__);
+ return -ENXIO;
+ }
+
+ ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+ MPI2_IOCSTATUS_MASK;
+ if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+ printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
+ "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
+ __FILE__, __LINE__, __func__);
+ return -EIO;
+ }
+
+ *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+ return 0;
+}
+
+/**
* _scsih_determine_boot_device - determine boot device.
* @ioc: per adapter object
* @device: either sas_device or raid_device object
@@ -510,8 +551,6 @@
struct _sas_device *sas_device)
{
unsigned long flags;
- u16 handle, parent_handle;
- u64 sas_address;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
@@ -521,10 +560,8 @@
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- handle = sas_device->handle;
- parent_handle = sas_device->parent_handle;
- sas_address = sas_device->sas_address;
- if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
+ if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
+ sas_device->sas_address_parent))
_scsih_sas_device_remove(ioc, sas_device);
}
@@ -553,31 +590,6 @@
}
/**
- * mpt2sas_scsih_expander_find_by_handle - expander device search
- * @ioc: per adapter object
- * @handle: expander handle (assigned by firmware)
- * Context: Calling function should acquire ioc->sas_device_lock
- *
- * This searches for expander device based on handle, then returns the
- * sas_node object.
- */
-struct _sas_node *
-mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
-{
- struct _sas_node *sas_expander, *r;
-
- r = NULL;
- list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
- if (sas_expander->handle != handle)
- continue;
- r = sas_expander;
- goto out;
- }
- out:
- return r;
-}
-
-/**
* _scsih_raid_device_find_by_id - raid device search
* @ioc: per adapter object
* @id: sas device target id
@@ -699,6 +711,31 @@
}
/**
+ * mpt2sas_scsih_expander_find_by_handle - expander device search
+ * @ioc: per adapter object
+ * @handle: expander handle (assigned by firmware)
+ * Context: Calling function should acquire ioc->sas_device_lock
+ *
+ * This searches for expander device based on handle, then returns the
+ * sas_node object.
+ */
+struct _sas_node *
+mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+{
+ struct _sas_node *sas_expander, *r;
+
+ r = NULL;
+ list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
+ if (sas_expander->handle != handle)
+ continue;
+ r = sas_expander;
+ goto out;
+ }
+ out:
+ return r;
+}
+
+/**
* mpt2sas_scsih_expander_find_by_sas_address - expander device search
* @ioc: per adapter object
* @sas_address: sas address
@@ -3344,7 +3381,6 @@
/**
* _scsih_sas_host_refresh - refreshing sas host object contents
* @ioc: per adapter object
- * @update: update link information
* Context: user
*
* During port enable, fw will send topology events for every device. Its
@@ -3354,13 +3390,14 @@
* Return nothing.
*/
static void
-_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
+_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
{
u16 sz;
u16 ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
+ u16 attached_handle;
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
"updating handles for sas_host(0x%016llx)\n",
@@ -3374,27 +3411,24 @@
ioc->name, __FILE__, __LINE__, __func__);
return;
}
- if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
- sas_iounit_pg0, sz))) {
- ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
- MPI2_IOCSTATUS_MASK;
- if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
- goto out;
- for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
- ioc->sas_hba.phy[i].handle =
- le16_to_cpu(sas_iounit_pg0->PhyData[i].
- ControllerDevHandle);
- if (update)
- mpt2sas_transport_update_links(
- ioc,
- ioc->sas_hba.phy[i].handle,
- le16_to_cpu(sas_iounit_pg0->PhyData[i].
- AttachedDevHandle), i,
- sas_iounit_pg0->PhyData[i].
- NegotiatedLinkRate >> 4);
- }
- }
+ if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
+ sas_iounit_pg0, sz)) != 0)
+ goto out;
+ ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+ if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
+ goto out;
+ for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
+ if (i == 0)
+ ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
+ PhyData[0].ControllerDevHandle);
+ ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
+ attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
+ AttachedDevHandle);
+ mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
+ attached_handle, i, sas_iounit_pg0->PhyData[i].
+ NegotiatedLinkRate >> 4);
+ }
out:
kfree(sas_iounit_pg0);
}
@@ -3507,19 +3541,21 @@
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
- ioc->sas_hba.phy[i].handle =
- le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
+
+ if (i == 0)
+ ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
+ PhyData[0].ControllerDevHandle);
+ ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
ioc->sas_hba.phy[i].phy_id = i;
mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
phy_pg0, ioc->sas_hba.parent_dev);
}
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
- MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
+ MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
- ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
ioc->sas_hba.enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
@@ -3562,7 +3598,7 @@
Mpi2SasEnclosurePage0_t enclosure_pg0;
u32 ioc_status;
u16 parent_handle;
- __le64 sas_address;
+ __le64 sas_address, sas_address_parent = 0;
int i;
unsigned long flags;
struct _sas_port *mpt2sas_port = NULL;
@@ -3591,10 +3627,16 @@
/* handle out of order topology events */
parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
- if (parent_handle >= ioc->sas_hba.num_phys) {
+ if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
+ != 0) {
+ printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__);
+ return -1;
+ }
+ if (sas_address_parent != ioc->sas_hba.sas_address) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
- sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
- parent_handle);
+ sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
+ sas_address_parent);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_expander) {
rc = _scsih_expander_add(ioc, parent_handle);
@@ -3622,14 +3664,12 @@
sas_expander->handle = handle;
sas_expander->num_phys = expander_pg0.NumPhys;
- sas_expander->parent_handle = parent_handle;
- sas_expander->enclosure_handle =
- le16_to_cpu(expander_pg0.EnclosureHandle);
+ sas_expander->sas_address_parent = sas_address_parent;
sas_expander->sas_address = sas_address;
printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
" parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
- handle, sas_expander->parent_handle, (unsigned long long)
+ handle, parent_handle, (unsigned long long)
sas_expander->sas_address, sas_expander->num_phys);
if (!sas_expander->num_phys)
@@ -3645,7 +3685,7 @@
INIT_LIST_HEAD(&sas_expander->sas_port_list);
mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
- sas_expander->parent_handle);
+ sas_address_parent);
if (!mpt2sas_port) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
@@ -3691,7 +3731,7 @@
if (mpt2sas_port)
mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
- sas_expander->parent_handle);
+ sas_address_parent);
kfree(sas_expander);
return rc;
}
@@ -3699,12 +3739,12 @@
/**
* _scsih_expander_remove - removing expander object
* @ioc: per adapter object
- * @handle: expander handle
+ * @sas_address: expander sas_address
*
* Return nothing.
*/
static void
-_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
{
struct _sas_node *sas_expander;
unsigned long flags;
@@ -3713,7 +3753,8 @@
return;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
- sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
+ sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
+ sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_expander_node_remove(ioc, sas_expander);
}
@@ -3805,8 +3846,11 @@
}
sas_device->handle = handle;
- sas_device->parent_handle =
- le16_to_cpu(sas_device_pg0.ParentDevHandle);
+ if (_scsih_get_sas_address(ioc, le16_to_cpu
+ (sas_device_pg0.ParentDevHandle),
+ &sas_device->sas_address_parent) != 0)
+ printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
sas_device->slot =
@@ -3836,43 +3880,39 @@
/**
* _scsih_remove_device - removing sas device object
* @ioc: per adapter object
- * @handle: sas device handle
+ * @sas_device: the sas_device object
*
* Return nothing.
*/
static void
-_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, struct _sas_device
+ *sas_device)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
- struct _sas_device *sas_device;
- unsigned long flags;
Mpi2SasIoUnitControlReply_t mpi_reply;
Mpi2SasIoUnitControlRequest_t mpi_request;
- u16 device_handle;
+ u16 device_handle, handle;
- /* lookup sas_device */
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- if (!sas_device) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+ if (!sas_device)
return;
- }
- dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
- "(0x%04x)\n", ioc->name, __func__, handle));
+ handle = sas_device->handle;
+ dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle(0x%04x),"
+ " sas_addr(0x%016llx)\n", ioc->name, __func__, handle,
+ (unsigned long long) sas_device->sas_address));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
}
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (ioc->remove_host)
+ if (ioc->remove_host || ioc->shost_recovery || !handle)
goto out;
if ((sas_device->state & MPTSAS_STATE_TR_COMPLETE)) {
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "\tskip "
- "target_reset handle(0x%04x)\n", ioc->name, handle));
+ "target_reset handle(0x%04x)\n", ioc->name,
+ handle));
goto skip_tr;
}
@@ -3925,10 +3965,10 @@
_scsih_ublock_io_device(ioc, handle);
mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
- sas_device->parent_handle);
+ sas_device->sas_address_parent);
printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
- "(0x%016llx)\n", ioc->name, sas_device->handle,
+ "(0x%016llx)\n", ioc->name, handle,
(unsigned long long) sas_device->sas_address);
_scsih_sas_device_remove(ioc, sas_device);
@@ -4031,8 +4071,10 @@
u16 reason_code;
u8 phy_number;
struct _sas_node *sas_expander;
+ struct _sas_device *sas_device;
+ u64 sas_address;
unsigned long flags;
- u8 link_rate_;
+ u8 link_rate;
Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
@@ -4040,10 +4082,13 @@
_scsih_sas_topology_change_event_debug(ioc, event_data);
#endif
+ if (ioc->shost_recovery)
+ return;
+
if (!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
else
- _scsih_sas_host_refresh(ioc, 0);
+ _scsih_sas_host_refresh(ioc);
if (fw_event->ignore) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
@@ -4058,6 +4103,17 @@
if (_scsih_expander_add(ioc, parent_handle) != 0)
return;
+ spin_lock_irqsave(&ioc->sas_node_lock, flags);
+ sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
+ parent_handle);
+ spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+ if (sas_expander)
+ sas_address = sas_expander->sas_address;
+ else if (parent_handle < ioc->sas_hba.num_phys)
+ sas_address = ioc->sas_hba.sas_address;
+ else
+ return;
+
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
@@ -4077,48 +4133,40 @@
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
- link_rate_ = event_data->PHY[i].LinkRate >> 4;
+ link_rate = event_data->PHY[i].LinkRate >> 4;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
- if (!parent_handle) {
- if (phy_number < ioc->sas_hba.num_phys)
- mpt2sas_transport_update_links(
- ioc,
- ioc->sas_hba.phy[phy_number].handle,
- handle, phy_number, link_rate_);
- } else {
- spin_lock_irqsave(&ioc->sas_node_lock, flags);
- sas_expander =
- mpt2sas_scsih_expander_find_by_handle(ioc,
- parent_handle);
- spin_unlock_irqrestore(&ioc->sas_node_lock,
- flags);
- if (sas_expander) {
- if (phy_number < sas_expander->num_phys)
- mpt2sas_transport_update_links(
- ioc,
- sas_expander->
- phy[phy_number].handle,
- handle, phy_number,
- link_rate_);
- }
- }
+
+ mpt2sas_transport_update_links(ioc, sas_address,
+ handle, phy_number, link_rate);
+
+ if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
+ break;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
- if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
- break;
_scsih_add_device(ioc, handle, phy_number, 0);
}
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
- _scsih_remove_device(ioc, handle);
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device = _scsih_sas_device_find_by_handle(ioc,
+ handle);
+ if (!sas_device) {
+ spin_unlock_irqrestore(&ioc->sas_device_lock,
+ flags);
+ break;
+ }
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+ _scsih_remove_device(ioc, sas_device);
break;
}
}
/* handle expander removal */
- if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
- _scsih_expander_remove(ioc, parent_handle);
+ if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
+ sas_expander)
+ _scsih_expander_remove(ioc, sas_address);
}
@@ -4570,7 +4618,7 @@
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
- _scsih_remove_device(ioc, handle);
+ _scsih_remove_device(ioc, sas_device);
}
/**
@@ -4591,6 +4639,8 @@
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
+ u64 sas_address;
+ u16 parent_handle;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
@@ -4615,9 +4665,10 @@
return;
}
- mpt2sas_transport_update_links(ioc,
- le16_to_cpu(sas_device_pg0.ParentDevHandle),
- handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
+ parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
+ if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
+ mpt2sas_transport_update_links(ioc, sas_address, handle,
+ sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
_scsih_add_device(ioc, handle, 0, 1);
}
@@ -4857,7 +4908,7 @@
_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
- u16 handle;
+ u16 handle, parent_handle;
u32 state;
struct _sas_device *sas_device;
unsigned long flags;
@@ -4865,6 +4916,7 @@
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
+ u64 sas_address;
if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
return;
@@ -4906,9 +4958,10 @@
return;
}
- mpt2sas_transport_update_links(ioc,
- le16_to_cpu(sas_device_pg0.ParentDevHandle),
- handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
+ parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
+ if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
+ mpt2sas_transport_update_links(ioc, sas_address, handle,
+ sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
_scsih_add_device(ioc, handle, 0, 1);
@@ -5252,18 +5305,23 @@
{
struct _sas_node *sas_expander;
unsigned long flags;
+ int i;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
- if (sas_expander->sas_address == sas_address) {
- sas_expander->responding = 1;
- if (sas_expander->handle != handle) {
- printk(KERN_INFO "old handle(0x%04x)\n",
- sas_expander->handle);
- sas_expander->handle = handle;
- }
+ if (sas_expander->sas_address != sas_address)
+ continue;
+ sas_expander->responding = 1;
+ if (sas_expander->handle == handle)
goto out;
- }
+ printk(KERN_INFO "\texpander(0x%016llx): handle changed"
+ " from(0x%04x) to (0x%04x)!!!\n",
+ (unsigned long long)sas_expander->sas_address,
+ sas_expander->handle, handle);
+ sas_expander->handle = handle;
+ for (i = 0 ; i < sas_expander->num_phys ; i++)
+ sas_expander->phy[i].handle = handle;
+ goto out;
}
out:
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
@@ -5340,7 +5398,9 @@
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
- _scsih_remove_device(ioc, sas_device->handle);
+ /* invalidate the device handle */
+ sas_device->handle = 0;
+ _scsih_remove_device(ioc, sas_device);
}
list_for_each_entry_safe(raid_device, raid_device_next,
@@ -5366,7 +5426,7 @@
sas_expander->responding = 0;
continue;
}
- _scsih_expander_remove(ioc, sas_expander->handle);
+ _scsih_expander_remove(ioc, sas_expander->sas_address);
goto retry_expander_search;
}
}
@@ -5406,7 +5466,7 @@
case MPT2_IOC_DONE_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
- _scsih_sas_host_refresh(ioc, 0);
+ _scsih_sas_host_refresh(ioc);
_scsih_search_responding_sas_devices(ioc);
_scsih_search_responding_raid_devices(ioc);
_scsih_search_responding_expanders(ioc);
@@ -5646,7 +5706,7 @@
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
continue;
- _scsih_remove_device(ioc, sas_device->handle);
+ _scsih_remove_device(ioc, sas_device);
if (ioc->shost_recovery)
return;
goto retry_device_search;
@@ -5669,7 +5729,8 @@
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!expander_sibling)
continue;
- _scsih_expander_remove(ioc, expander_sibling->handle);
+ _scsih_expander_remove(ioc,
+ expander_sibling->sas_address);
if (ioc->shost_recovery)
return;
goto retry_expander_search;
@@ -5677,7 +5738,7 @@
}
mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
- sas_expander->parent_handle);
+ sas_expander->sas_address_parent);
printk(MPT2SAS_INFO_FMT "expander_remove: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
@@ -5726,7 +5787,7 @@
mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
if (sas_device) {
- _scsih_remove_device(ioc, sas_device->handle);
+ _scsih_remove_device(ioc, sas_device);
goto retry_again;
}
} else {
@@ -5735,7 +5796,7 @@
mpt2sas_port->remote_identify.sas_address);
if (expander_sibling) {
_scsih_expander_remove(ioc,
- expander_sibling->handle);
+ expander_sibling->sas_address);
goto retry_again;
}
}
@@ -5770,7 +5831,8 @@
void *device;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
- u16 handle, parent_handle;
+ u16 handle;
+ u64 sas_address_parent;
u64 sas_address;
unsigned long flags;
int rc;
@@ -5799,17 +5861,17 @@
} else {
sas_device = device;
handle = sas_device->handle;
- parent_handle = sas_device->parent_handle;
+ sas_address_parent = sas_device->sas_address_parent;
sas_address = sas_device->sas_address;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
- sas_device->parent_handle)) {
+ sas_device->sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
mpt2sas_transport_port_remove(ioc, sas_address,
- parent_handle);
+ sas_address_parent);
_scsih_sas_device_remove(ioc, sas_device);
}
}
@@ -5849,8 +5911,6 @@
{
struct _sas_device *sas_device, *next;
unsigned long flags;
- u16 handle, parent_handle;
- u64 sas_address;
/* SAS Device List */
list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
@@ -5859,14 +5919,13 @@
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- handle = sas_device->handle;
- parent_handle = sas_device->parent_handle;
- sas_address = sas_device->sas_address;
- if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
+ if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
+ sas_device->sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
- mpt2sas_transport_port_remove(ioc, sas_address,
- parent_handle);
+ mpt2sas_transport_port_remove(ioc,
+ sas_device->sas_address,
+ sas_device->sas_address_parent);
_scsih_sas_device_remove(ioc, sas_device);
}
}
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index eb98188c..8030bc2 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -59,24 +59,23 @@
#include "mpt2sas_base.h"
/**
- * _transport_sas_node_find_by_handle - sas node search
+ * _transport_sas_node_find_by_sas_address - sas node search
* @ioc: per adapter object
- * @handle: expander or hba handle (assigned by firmware)
+ * @sas_address: sas address of expander or sas host
* Context: Calling function should acquire ioc->sas_node_lock.
*
* Search for either hba phys or expander device based on handle, then returns
* the sas_node object.
*/
static struct _sas_node *
-_transport_sas_node_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+_transport_sas_node_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
+ u64 sas_address)
{
- int i;
-
- for (i = 0; i < ioc->sas_hba.num_phys; i++)
- if (ioc->sas_hba.phy[i].handle == handle)
- return &ioc->sas_hba;
-
- return mpt2sas_scsih_expander_find_by_handle(ioc, handle);
+ if (ioc->sas_hba.sas_address == sas_address)
+ return &ioc->sas_hba;
+ else
+ return mpt2sas_scsih_expander_find_by_sas_address(ioc,
+ sas_address);
}
/**
@@ -469,7 +468,7 @@
* mpt2sas_transport_port_add - insert port to the list
* @ioc: per adapter object
* @handle: handle of attached device
- * @parent_handle: parent handle(either hba or expander)
+ * @sas_address: sas address of parent expander or sas host
* Context: This function will acquire ioc->sas_node_lock.
*
* Adding new port object to the sas_node->sas_port_list.
@@ -478,7 +477,7 @@
*/
struct _sas_port *
mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc, u16 handle,
- u16 parent_handle)
+ u64 sas_address)
{
struct _sas_phy *mpt2sas_phy, *next;
struct _sas_port *mpt2sas_port;
@@ -488,9 +487,6 @@
int i;
struct sas_port *port;
- if (!parent_handle)
- return NULL;
-
mpt2sas_port = kzalloc(sizeof(struct _sas_port),
GFP_KERNEL);
if (!mpt2sas_port) {
@@ -502,17 +498,16 @@
INIT_LIST_HEAD(&mpt2sas_port->port_list);
INIT_LIST_HEAD(&mpt2sas_port->phy_list);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
- sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle);
+ sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_node) {
- printk(MPT2SAS_ERR_FMT "%s: Could not find parent(0x%04x)!\n",
- ioc->name, __func__, parent_handle);
+ printk(MPT2SAS_ERR_FMT "%s: Could not find "
+ "parent sas_address(0x%016llx)!\n", ioc->name,
+ __func__, (unsigned long long)sas_address);
goto out_fail;
}
- mpt2sas_port->handle = parent_handle;
- mpt2sas_port->sas_address = sas_node->sas_address;
if ((_transport_set_identify(ioc, handle,
&mpt2sas_port->remote_identify))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
@@ -604,7 +599,7 @@
* mpt2sas_transport_port_remove - remove port from the list
* @ioc: per adapter object
* @sas_address: sas address of attached device
- * @parent_handle: handle to the upstream parent(either hba or expander)
+ * @sas_address_parent: sas address of parent expander or sas host
* Context: This function will acquire ioc->sas_node_lock.
*
* Removing object and freeing associated memory from the
@@ -614,7 +609,7 @@
*/
void
mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
- u16 parent_handle)
+ u64 sas_address_parent)
{
int i;
unsigned long flags;
@@ -624,7 +619,8 @@
struct _sas_phy *mpt2sas_phy, *next_phy;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
- sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle);
+ sas_node = _transport_sas_node_find_by_sas_address(ioc,
+ sas_address_parent);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_node)
return;
@@ -650,8 +646,7 @@
&mpt2sas_port->phy_list, port_siblings) {
if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
dev_printk(KERN_INFO, &mpt2sas_port->port->dev,
- "remove: parent_handle(0x%04x), "
- "sas_addr(0x%016llx), phy(%d)\n", parent_handle,
+ "remove: sas_addr(0x%016llx), phy(%d)\n",
(unsigned long long)
mpt2sas_port->remote_identify.sas_address,
mpt2sas_phy->phy_id);
@@ -799,8 +794,8 @@
/**
* mpt2sas_transport_update_links - refreshing phy link changes
* @ioc: per adapter object
- * @handle: handle to sas_host or expander
- * @attached_handle: attached device handle
+ * @sas_address: sas address of parent expander or sas host
+ * @handle: attached device handle
* @phy_numberv: phy number
* @link_rate: new link rate
*
@@ -808,28 +803,25 @@
*/
void
mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
- u16 handle, u16 attached_handle, u8 phy_number, u8 link_rate)
+ u64 sas_address, u16 handle, u8 phy_number, u8 link_rate)
{
unsigned long flags;
struct _sas_node *sas_node;
struct _sas_phy *mpt2sas_phy;
- if (ioc->shost_recovery) {
- printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
- __func__, ioc->name);
+ if (ioc->shost_recovery)
return;
- }
spin_lock_irqsave(&ioc->sas_node_lock, flags);
- sas_node = _transport_sas_node_find_by_handle(ioc, handle);
+ sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_node)
return;
mpt2sas_phy = &sas_node->phy[phy_number];
- mpt2sas_phy->attached_handle = attached_handle;
- if (attached_handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5))
- _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
+ mpt2sas_phy->attached_handle = handle;
+ if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5))
+ _transport_set_identify(ioc, handle,
&mpt2sas_phy->remote_identify);
else
memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct
@@ -841,13 +833,11 @@
if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev,
- "refresh: handle(0x%04x), sas_addr(0x%016llx),\n"
+ "refresh: parent sas_addr(0x%016llx),\n"
"\tlink_rate(0x%02x), phy(%d)\n"
"\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
- handle, (unsigned long long)
- mpt2sas_phy->identify.sas_address, link_rate,
- phy_number, attached_handle,
- (unsigned long long)
+ (unsigned long long)sas_address,
+ link_rate, phy_number, handle, (unsigned long long)
mpt2sas_phy->remote_identify.sas_address);
}