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linux-kernel-test/drivers/scsi/mpt2sas/mpt2sas_scsih.c
Eric Moore 6f92a7a0af [SCSI] mpt2sas: fix hotplug event processing 
Here's a fix for hotplug events.  The useage of queue_delayed_work seems
to broke the fifo for processing of firmware events.  After several iterations
of adding and removing cabling connected to jbods, the devices are not
getting added becuase kernel thread is activited out of order.

Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-27 10:54:15 -05:00

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/*
* Scsi Host Layer for MPT (Message Passing Technology) based controllers
*
* This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
* Copyright (C) 2007-2008 LSI Corporation
* (mailto:DL-MPTFusionLinux@lsi.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include "mpt2sas_base.h"
MODULE_AUTHOR(MPT2SAS_AUTHOR);
MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
#define RAID_CHANNEL 1
/* forward proto's */
static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander);
static void _firmware_event_work(struct work_struct *work);
/* global parameters */
LIST_HEAD(mpt2sas_ioc_list);
/* local parameters */
static u8 scsi_io_cb_idx = -1;
static u8 tm_cb_idx = -1;
static u8 ctl_cb_idx = -1;
static u8 base_cb_idx = -1;
static u8 transport_cb_idx = -1;
static u8 config_cb_idx = -1;
static int mpt_ids;
/* command line options */
static u32 logging_level;
MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
"(default=0)");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT2SAS_MAX_LUN (16895)
static int max_lun = MPT2SAS_MAX_LUN;
module_param(max_lun, int, 0);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
/**
* struct sense_info - common structure for obtaining sense keys
* @skey: sense key
* @asc: additional sense code
* @ascq: additional sense code qualifier
*/
struct sense_info {
u8 skey;
u8 asc;
u8 ascq;
};
#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
/**
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
* @ioc: per adapter object
* @VF_ID: virtual function id
* @host_reset_handling: handling events during host reset
* @ignore: flag meaning this event has been marked to ignore
* @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
* @event_data: reply event data payload follows
*
* This object stored on ioc->fw_event_list.
*/
struct fw_event_work {
struct list_head list;
struct work_struct work;
struct MPT2SAS_ADAPTER *ioc;
u8 VF_ID;
u8 host_reset_handling;
u8 ignore;
u16 event;
void *event_data;
};
/**
* struct _scsi_io_transfer - scsi io transfer
* @handle: sas device handle (assigned by firmware)
* @is_raid: flag set for hidden raid components
* @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
* @data_length: data transfer length
* @data_dma: dma pointer to data
* @sense: sense data
* @lun: lun number
* @cdb_length: cdb length
* @cdb: cdb contents
* @valid_reply: flag set for reply message
* @timeout: timeout for this command
* @sense_length: sense length
* @ioc_status: ioc status
* @scsi_state: scsi state
* @scsi_status: scsi staus
* @log_info: log information
* @transfer_length: data length transfer when there is a reply message
*
* Used for sending internal scsi commands to devices within this module.
* Refer to _scsi_send_scsi_io().
*/
struct _scsi_io_transfer {
u16 handle;
u8 is_raid;
enum dma_data_direction dir;
u32 data_length;
dma_addr_t data_dma;
u8 sense[SCSI_SENSE_BUFFERSIZE];
u32 lun;
u8 cdb_length;
u8 cdb[32];
u8 timeout;
u8 valid_reply;
/* the following bits are only valid when 'valid_reply = 1' */
u32 sense_length;
u16 ioc_status;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
u32 transfer_length;
};
/*
* The pci device ids are defined in mpi/mpi2_cnfg.h.
*/
static struct pci_device_id scsih_pci_table[] = {
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
PCI_ANY_ID, PCI_ANY_ID },
/* Falcon ~ 2008*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
PCI_ANY_ID, PCI_ANY_ID },
/* Liberator ~ 2108 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
PCI_ANY_ID, PCI_ANY_ID },
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, scsih_pci_table);
/**
* scsih_set_debug_level - global setting of ioc->logging_level.
*
* Note: The logging levels are defined in mpt2sas_debug.h.
*/
static int
scsih_set_debug_level(const char *val, struct kernel_param *kp)
{
int ret = param_set_int(val, kp);
struct MPT2SAS_ADAPTER *ioc;
if (ret)
return ret;
printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
ioc->logging_level = logging_level;
return 0;
}
module_param_call(logging_level, scsih_set_debug_level, param_get_int,
&logging_level, 0644);
/**
* _scsih_srch_boot_sas_address - search based on sas_address
* @sas_address: sas address
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_sas_address(u64 sas_address,
Mpi2BootDeviceSasWwid_t *boot_device)
{
return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
}
/**
* _scsih_srch_boot_device_name - search based on device name
* @device_name: device name specified in INDENTIFY fram
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_device_name(u64 device_name,
Mpi2BootDeviceDeviceName_t *boot_device)
{
return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
}
/**
* _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
* @enclosure_logical_id: enclosure logical id
* @slot_number: slot number
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
Mpi2BootDeviceEnclosureSlot_t *boot_device)
{
return (enclosure_logical_id == le64_to_cpu(boot_device->
EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
SlotNumber)) ? 1 : 0;
}
/**
* _scsih_is_boot_device - search for matching boot device.
* @sas_address: sas address
* @device_name: device name specified in INDENTIFY fram
* @enclosure_logical_id: enclosure logical id
* @slot_number: slot number
* @form: specifies boot device form
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static int
_scsih_is_boot_device(u64 sas_address, u64 device_name,
u64 enclosure_logical_id, u16 slot, u8 form,
Mpi2BiosPage2BootDevice_t *boot_device)
{
int rc = 0;
switch (form) {
case MPI2_BIOSPAGE2_FORM_SAS_WWID:
if (!sas_address)
break;
rc = _scsih_srch_boot_sas_address(
sas_address, &boot_device->SasWwid);
break;
case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
if (!enclosure_logical_id)
break;
rc = _scsih_srch_boot_encl_slot(
enclosure_logical_id,
slot, &boot_device->EnclosureSlot);
break;
case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
if (!device_name)
break;
rc = _scsih_srch_boot_device_name(
device_name, &boot_device->DeviceName);
break;
case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
break;
}
return rc;
}
/**
* _scsih_determine_boot_device - determine boot device.
* @ioc: per adapter object
* @device: either sas_device or raid_device object
* @is_raid: [flag] 1 = raid object, 0 = sas object
*
* Determines whether this device should be first reported device to
* to scsi-ml or sas transport, this purpose is for persistant boot device.
* There are primary, alternate, and current entries in bios page 2. The order
* priority is primary, alternate, then current. This routine saves
* the corresponding device object and is_raid flag in the ioc object.
* The saved data to be used later in _scsih_probe_boot_devices().
*/
static void
_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
void *device, u8 is_raid)
{
struct _sas_device *sas_device;
struct _raid_device *raid_device;
u64 sas_address;
u64 device_name;
u64 enclosure_logical_id;
u16 slot;
/* only process this function when driver loads */
if (!ioc->wait_for_port_enable_to_complete)
return;
if (!is_raid) {
sas_device = device;
sas_address = sas_device->sas_address;
device_name = sas_device->device_name;
enclosure_logical_id = sas_device->enclosure_logical_id;
slot = sas_device->slot;
} else {
raid_device = device;
sas_address = raid_device->wwid;
device_name = 0;
enclosure_logical_id = 0;
slot = 0;
}
if (!ioc->req_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.ReqBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.RequestedBootDevice)) {
dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s: req_boot_device(0x%016llx)\n",
ioc->name, __func__,
(unsigned long long)sas_address));
ioc->req_boot_device.device = device;
ioc->req_boot_device.is_raid = is_raid;
}
}
if (!ioc->req_alt_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.ReqAltBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.RequestedAltBootDevice)) {
dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s: req_alt_boot_device(0x%016llx)\n",
ioc->name, __func__,
(unsigned long long)sas_address));
ioc->req_alt_boot_device.device = device;
ioc->req_alt_boot_device.is_raid = is_raid;
}
}
if (!ioc->current_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.CurrentBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.CurrentBootDevice)) {
dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s: current_boot_device(0x%016llx)\n",
ioc->name, __func__,
(unsigned long long)sas_address));
ioc->current_boot_device.device = device;
ioc->current_boot_device.is_raid = is_raid;
}
}
}
/**
* mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address, then return sas_device
* object.
*/
struct _sas_device *
mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device, *r;
r = NULL;
/* check the sas_device_init_list */
list_for_each_entry(sas_device, &ioc->sas_device_init_list,
list) {
if (sas_device->sas_address != sas_address)
continue;
r = sas_device;
goto out;
}
/* then check the sas_device_list */
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->sas_address != sas_address)
continue;
r = sas_device;
goto out;
}
out:
return r;
}
/**
* _scsih_sas_device_find_by_handle - sas device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address, then return sas_device
* object.
*/
static struct _sas_device *
_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device, *r;
r = NULL;
if (ioc->wait_for_port_enable_to_complete) {
list_for_each_entry(sas_device, &ioc->sas_device_init_list,
list) {
if (sas_device->handle != handle)
continue;
r = sas_device;
goto out;
}
} else {
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->handle != handle)
continue;
r = sas_device;
goto out;
}
}
out:
return r;
}
/**
* _scsih_sas_device_remove - remove sas_device from list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Removing object and freeing associated memory from the ioc->sas_device_list.
*/
static void
_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_del(&sas_device->list);
memset(sas_device, 0, sizeof(struct _sas_device));
kfree(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_sas_device_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object to the ioc->sas_device_list.
*/
static void
_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
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__,
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
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))
_scsih_sas_device_remove(ioc, sas_device);
}
/**
* _scsih_sas_device_init_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object at driver load time to the ioc->sas_device_init_list.
*/
static void
_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_determine_boot_device(ioc, sas_device, 0);
}
/**
* 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
* @channel: sas device channel
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on target id, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->id == id && raid_device->channel == channel) {
r = raid_device;
goto out;
}
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_handle - raid device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on handle, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->handle != handle)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_wwid - raid device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on wwid, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid != wwid)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_add - add raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
* This is added to the raid_device_list link list.
*/
static void
_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
"(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
raid_device->handle, (unsigned long long)raid_device->wwid));
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_add_tail(&raid_device->list, &ioc->raid_device_list);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_raid_device_remove - delete raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
* This is removed from the raid_device_list link list.
*/
static void
_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_del(&raid_device->list);
memset(raid_device, 0, sizeof(struct _raid_device));
kfree(raid_device);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* mpt2sas_scsih_expander_find_by_sas_address - expander device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_node_lock.
*
* This searches for expander device based on sas_address, then returns the
* sas_node object.
*/
struct _sas_node *
mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* _scsih_expander_node_add - insert expander device to the list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
* Context: This function will acquire ioc->sas_node_lock.
*
* Adding new object to the ioc->sas_expander_list.
*
* Return nothing.
*/
static void
_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_is_end_device - determines if device is an end device
* @device_info: bitfield providing information about the device.
* Context: none
*
* Returns 1 if end device.
*/
static int
_scsih_is_end_device(u32 device_info)
{
if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
(device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
(device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
return 1;
else
return 0;
}
/**
* _scsih_scsi_lookup_get - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* Returns the smid stored scmd pointer.
*/
static struct scsi_cmnd *
_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
unsigned long flags;
struct scsi_cmnd *scmd;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
scmd = ioc->scsi_lookup[smid - 1].scmd;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return scmd;
}
/**
* mptscsih_getclear_scsi_lookup - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
*/
static struct scsi_cmnd *
_scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
unsigned long flags;
struct scsi_cmnd *scmd;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
scmd = ioc->scsi_lookup[smid - 1].scmd;
ioc->scsi_lookup[smid - 1].scmd = NULL;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return scmd;
}
/**
* _scsih_scsi_lookup_set - updates scmd entry in lookup
* @ioc: per adapter object
* @smid: system request message index
* @scmd: pointer to scsi command object
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will save scmd pointer in the scsi_lookup array.
*
* Return nothing.
*/
static void
_scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
struct scsi_cmnd *scmd)
{
unsigned long flags;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->scsi_lookup[smid - 1].scmd = scmd;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
}
/**
* _scsih_scsi_lookup_find_by_scmd - scmd lookup
* @ioc: per adapter object
* @smid: system request message index
* @scmd: pointer to scsi command object
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a scmd pointer in the scsi_lookup array,
* returning the revelent smid. A returned value of zero means invalid.
*/
static u16
_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
*scmd)
{
u16 smid;
unsigned long flags;
int i;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
smid = 0;
for (i = 0; i < ioc->request_depth; i++) {
if (ioc->scsi_lookup[i].scmd == scmd) {
smid = i + 1;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return smid;
}
/**
* _scsih_scsi_lookup_find_by_target - search for matching channel:id
* @ioc: per adapter object
* @id: target id
* @channel: channel
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a matching channel:id in the scsi_lookup array,
* returning 1 if found.
*/
static u8
_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
int channel)
{
u8 found;
unsigned long flags;
int i;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
found = 0;
for (i = 0 ; i < ioc->request_depth; i++) {
if (ioc->scsi_lookup[i].scmd &&
(ioc->scsi_lookup[i].scmd->device->id == id &&
ioc->scsi_lookup[i].scmd->device->channel == channel)) {
found = 1;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return found;
}
/**
* _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
* @ioc: per adapter object
* @smid: system request message index
*
* Returns phys pointer to chain buffer.
*/
static dma_addr_t
_scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
ioc->chains_needed_per_io));
}
/**
* _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
* @ioc: per adapter object
* @smid: system request message index
*
* Returns virt pointer to chain buffer.
*/
static void *
_scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
ioc->chains_needed_per_io)));
}
/**
* _scsih_build_scatter_gather - main sg creation routine
* @ioc: per adapter object
* @scmd: scsi command
* @smid: system request message index
* Context: none.
*
* The main routine that builds scatter gather table from a given
* scsi request sent via the .queuecommand main handler.
*
* Returns 0 success, anything else error
*/
static int
_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
struct scsi_cmnd *scmd, u16 smid)
{
Mpi2SCSIIORequest_t *mpi_request;
dma_addr_t chain_dma;
struct scatterlist *sg_scmd;
void *sg_local, *chain;
u32 chain_offset;
u32 chain_length;
u32 chain_flags;
u32 sges_left;
u32 sges_in_segment;
u32 sgl_flags;
u32 sgl_flags_last_element;
u32 sgl_flags_end_buffer;
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
/* init scatter gather flags */
sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
if (scmd->sc_data_direction == DMA_TO_DEVICE)
sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
<< MPI2_SGE_FLAGS_SHIFT;
sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
<< MPI2_SGE_FLAGS_SHIFT;
sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
sg_scmd = scsi_sglist(scmd);
sges_left = scsi_dma_map(scmd);
if (!sges_left) {
sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
" failed: request for %d bytes!\n", scsi_bufflen(scmd));
return -ENOMEM;
}
sg_local = &mpi_request->SGL;
sges_in_segment = ioc->max_sges_in_main_message;
if (sges_left <= sges_in_segment)
goto fill_in_last_segment;
mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
(sges_in_segment * ioc->sge_size))/4;
/* fill in main message segment when there is a chain following */
while (sges_in_segment) {
if (sges_in_segment == 1)
ioc->base_add_sg_single(sg_local,
sgl_flags_last_element | sg_dma_len(sg_scmd),
sg_dma_address(sg_scmd));
else
ioc->base_add_sg_single(sg_local, sgl_flags |
sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
sg_scmd = sg_next(sg_scmd);
sg_local += ioc->sge_size;
sges_left--;
sges_in_segment--;
}
/* initializing the chain flags and pointers */
chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
chain = _scsih_get_chain_buffer(ioc, smid);
chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
do {
sges_in_segment = (sges_left <=
ioc->max_sges_in_chain_message) ? sges_left :
ioc->max_sges_in_chain_message;
chain_offset = (sges_left == sges_in_segment) ?
0 : (sges_in_segment * ioc->sge_size)/4;
chain_length = sges_in_segment * ioc->sge_size;
if (chain_offset) {
chain_offset = chain_offset <<
MPI2_SGE_CHAIN_OFFSET_SHIFT;
chain_length += ioc->sge_size;
}
ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
chain_length, chain_dma);
sg_local = chain;
if (!chain_offset)
goto fill_in_last_segment;
/* fill in chain segments */
while (sges_in_segment) {
if (sges_in_segment == 1)
ioc->base_add_sg_single(sg_local,
sgl_flags_last_element |
sg_dma_len(sg_scmd),
sg_dma_address(sg_scmd));
else
ioc->base_add_sg_single(sg_local, sgl_flags |
sg_dma_len(sg_scmd),
sg_dma_address(sg_scmd));
sg_scmd = sg_next(sg_scmd);
sg_local += ioc->sge_size;
sges_left--;
sges_in_segment--;
}
chain_dma += ioc->request_sz;
chain += ioc->request_sz;
} while (1);
fill_in_last_segment:
/* fill the last segment */
while (sges_left) {
if (sges_left == 1)
ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
else
ioc->base_add_sg_single(sg_local, sgl_flags |
sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
sg_scmd = sg_next(sg_scmd);
sg_local += ioc->sge_size;
sges_left--;
}
return 0;
}
/**
* scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
*
* Returns queue depth.
*/
static int
scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
int max_depth;
int tag_type;
max_depth = shost->can_queue;
if (!sdev->tagged_supported)
max_depth = 1;
if (qdepth > max_depth)
qdepth = max_depth;
tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
scsi_adjust_queue_depth(sdev, tag_type, qdepth);
if (sdev->inquiry_len > 7)
sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
"simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
sdev->ordered_tags, sdev->scsi_level,
(sdev->inquiry[7] & 2) >> 1);
return sdev->queue_depth;
}
/**
* scsih_change_queue_depth - changing device queue tag type
* @sdev: scsi device struct
* @tag_type: requested tag type
*
* Returns queue tag type.
*/
static int
scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
{
if (sdev->tagged_supported) {
scsi_set_tag_type(sdev, tag_type);
if (tag_type)
scsi_activate_tcq(sdev, sdev->queue_depth);
else
scsi_deactivate_tcq(sdev, sdev->queue_depth);
} else
tag_type = 0;
return tag_type;
}
/**
* scsih_target_alloc - target add routine
* @starget: scsi target struct
*
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
struct sas_rphy *rphy;
sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
if (!sas_target_priv_data)
return -ENOMEM;
starget->hostdata = sas_target_priv_data;
sas_target_priv_data->starget = starget;
sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
/* RAID volumes */
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
sas_target_priv_data->handle = raid_device->handle;
sas_target_priv_data->sas_address = raid_device->wwid;
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
raid_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return 0;
}
/* sas/sata devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
rphy->identify.sas_address);
if (sas_device) {
sas_target_priv_data->handle = sas_device->handle;
sas_target_priv_data->sas_address = sas_device->sas_address;
sas_device->starget = starget;
sas_device->id = starget->id;
sas_device->channel = starget->channel;
if (sas_device->hidden_raid_component)
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return 0;
}
/**
* scsih_target_destroy - target destroy routine
* @starget: scsi target struct
*
* Returns nothing.
*/
static void
scsih_target_destroy(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
struct sas_rphy *rphy;
sas_target_priv_data = starget->hostdata;
if (!sas_target_priv_data)
return;
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
raid_device->starget = NULL;
raid_device->sdev = NULL;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
goto out;
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
rphy->identify.sas_address);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
(sas_device->channel == starget->channel))
sas_device->starget = NULL;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
out:
kfree(sas_target_priv_data);
starget->hostdata = NULL;
}
/**
* scsih_slave_alloc - device add routine
* @sdev: scsi device struct
*
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_slave_alloc(struct scsi_device *sdev)
{
struct Scsi_Host *shost;
struct MPT2SAS_ADAPTER *ioc;
struct MPT2SAS_TARGET *sas_target_priv_data;
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);
if (!sas_device_priv_data)
return -ENOMEM;
sas_device_priv_data->lun = sdev->lun;
sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns++;
sas_device_priv_data->sas_target = sas_target_priv_data;
sdev->hostdata = sas_device_priv_data;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
sdev->no_uld_attach = 1;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc,
starget->id, starget->channel);
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;
}
/**
* scsih_slave_destroy - device destroy routine
* @sdev: scsi device struct
*
* Returns nothing.
*/
static void
scsih_slave_destroy(struct scsi_device *sdev)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
if (!sdev->hostdata)
return;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns--;
kfree(sdev->hostdata);
sdev->hostdata = NULL;
}
/**
* scsih_display_sata_capabilities - sata capabilities
* @ioc: per adapter object
* @sas_device: the sas_device object
* @sdev: scsi device struct
*/
static void
scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device, struct scsi_device *sdev)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u16 flags;
u32 device_info;
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
flags = le16_to_cpu(sas_device_pg0.Flags);
device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
sdev_printk(KERN_INFO, sdev,
"atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
"sw_preserve(%s)\n",
(device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
"n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
}
/**
* _scsih_get_volume_capabilities - volume capabilities
* @ioc: per adapter object
* @sas_device: the raid_device object
*/
static void
_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
Mpi2RaidVolPage0_t *vol_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 sz;
u8 num_pds;
if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
&num_pds)) || !num_pds) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
raid_device->num_pds = num_pds;
sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
sizeof(Mpi2RaidVol0PhysDisk_t));
vol_pg0 = kzalloc(sz, GFP_KERNEL);
if (!vol_pg0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
kfree(vol_pg0);
return;
}
raid_device->volume_type = vol_pg0->VolumeType;
/* figure out what the underlying devices are by
* obtaining the device_info bits for the 1st device
*/
if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
vol_pg0->PhysDisk[0].PhysDiskNum))) {
if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
le16_to_cpu(pd_pg0.DevHandle)))) {
raid_device->device_info =
le32_to_cpu(sas_device_pg0.DeviceInfo);
}
}
kfree(vol_pg0);
}
/**
* scsih_slave_configure - device configure routine.
* @sdev: scsi device struct
*
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_slave_configure(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
int qdepth;
u8 ssp_target = 0;
char *ds = "";
char *r_level = "";
qdepth = 1;
sas_device_priv_data = sdev->hostdata;
sas_device_priv_data->configured_lun = 1;
sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
sas_target_priv_data = sas_device_priv_data->sas_target;
/* raid volume handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(ioc,
sas_target_priv_data->handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 0;
}
_scsih_get_volume_capabilities(ioc, raid_device);
/* RAID Queue Depth Support
* IS volume = underlying qdepth of drive type, either
* MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
* IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
*/
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
ds = "SSP";
} else {
qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
else
ds = "STP";
}
switch (raid_device->volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
r_level = "RAID0";
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1E";
break;
case MPI2_RAID_VOL_TYPE_RAID1:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1";
break;
case MPI2_RAID_VOL_TYPE_RAID10:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAID10";
break;
case MPI2_RAID_VOL_TYPE_UNKNOWN:
default:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAIDX";
break;
}
sdev_printk(KERN_INFO, sdev, "%s: "
"handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
r_level, raid_device->handle,
(unsigned long long)raid_device->wwid,
raid_device->num_pds, ds);
scsih_change_queue_depth(sdev, qdepth);
return 0;
}
/* non-raid handling */
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) {
if (sas_target_priv_data->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
mpt2sas_config_get_volume_handle(ioc,
sas_device->handle, &sas_device->volume_handle);
mpt2sas_config_get_volume_wwid(ioc,
sas_device->volume_handle,
&sas_device->volume_wwid);
}
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
ssp_target = 1;
ds = "SSP";
} else {
qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_STP_TARGET)
ds = "STP";
else if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
}
sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
"sas_addr(0x%016llx), device_name(0x%016llx)\n",
ds, sas_device->handle,
(unsigned long long)sas_device->sas_address,
(unsigned long long)sas_device->device_name);
sdev_printk(KERN_INFO, sdev, "%s: "
"enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
(unsigned long long) sas_device->enclosure_logical_id,
sas_device->slot);
if (!ssp_target)
scsih_display_sata_capabilities(ioc, sas_device, sdev);
}
scsih_change_queue_depth(sdev, qdepth);
if (ssp_target)
sas_read_port_mode_page(sdev);
return 0;
}
/**
* scsih_bios_param - fetch head, sector, cylinder info for a disk
* @sdev: scsi device struct
* @bdev: pointer to block device context
* @capacity: device size (in 512 byte sectors)
* @params: three element array to place output:
* params[0] number of heads (max 255)
* params[1] number of sectors (max 63)
* params[2] number of cylinders
*
* Return nothing.
*/
static int
scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int params[])
{
int heads;
int sectors;
sector_t cylinders;
ulong dummy;
heads = 64;
sectors = 32;
dummy = heads * sectors;
cylinders = capacity;
sector_div(cylinders, dummy);
/*
* Handle extended translation size for logical drives
* > 1Gb
*/
if ((ulong)capacity >= 0x200000) {
heads = 255;
sectors = 63;
dummy = heads * sectors;
cylinders = capacity;
sector_div(cylinders, dummy);
}
/* return result */
params[0] = heads;
params[1] = sectors;
params[2] = cylinders;
return 0;
}
/**
* _scsih_response_code - translation of device response code
* @ioc: per adapter object
* @response_code: response code returned by the device
*
* Return nothing.
*/
static void
_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
{
char *desc;
switch (response_code) {
case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
desc = "task management request completed";
break;
case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
desc = "invalid frame";
break;
case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
desc = "task management request not supported";
break;
case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
desc = "task management request failed";
break;
case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
desc = "task management request succeeded";
break;
case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
desc = "invalid lun";
break;
case 0xA:
desc = "overlapped tag attempted";
break;
case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
desc = "task queued, however not sent to target";
break;
default:
desc = "unknown";
break;
}
printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
ioc->name, response_code, desc);
}
/**
* scsih_tm_done - tm completion routine
* @ioc: per adapter object
* @smid: system request message index
* @VF_ID: virtual function id
* @reply: reply message frame(lower 32bit addr)
* Context: none.
*
* The callback handler when using scsih_issue_tm.
*
* Return nothing.
*/
static void
scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
return;
if (ioc->tm_cmds.smid != smid)
return;
ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
if (mpi_reply) {
memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
}
ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
complete(&ioc->tm_cmds.done);
}
/**
* mpt2sas_scsih_set_tm_flag - set per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 1;
skip = 1;
ioc->ignore_loginfos = 1;
}
}
}
/**
* mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 0;
skip = 1;
ioc->ignore_loginfos = 0;
}
}
}
/**
* mpt2sas_scsih_issue_tm - main routine for sending tm requests
* @ioc: per adapter struct
* @device_handle: device handle
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
* @timeout: timeout in seconds
* Context: The calling function needs to acquire the tm_cmds.mutex
*
* A generic API for sending task management requests to firmware.
*
* The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
* this API.
*
* The callback index is set inside `ioc->tm_cb_idx`.
*
* Return nothing.
*/
void
mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
u8 type, u16 smid_task, ulong timeout)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
u16 smid = 0;
u32 ioc_state;
unsigned long timeleft;
u8 VF_ID = 0;
unsigned long flags;
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
ioc->shost_recovery) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
return;
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
"active!\n", ioc->name));
goto issue_host_reset;
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt2sas_base_fault_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
goto issue_host_reset;
}
smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
if (!smid) {
printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
return;
}
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
" task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
ioc->tm_cmds.status = MPT2_CMD_PENDING;
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
ioc->tm_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = type;
mpi_request->TaskMID = cpu_to_le16(smid_task);
int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
mpt2sas_scsih_set_tm_flag(ioc, handle);
mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
mpt2sas_scsih_clear_tm_flag(ioc, handle);
if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
printk(MPT2SAS_ERR_FMT "%s: timeout\n",
ioc->name, __func__);
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
goto issue_host_reset;
}
if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
mpi_reply = ioc->tm_cmds.reply;
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
"ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
if (ioc->logging_level & MPT_DEBUG_TM)
_scsih_response_code(ioc, mpi_reply->ResponseCode);
}
return;
issue_host_reset:
mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
}
/**
* scsih_abort - eh threads main abort routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
scsih_abort(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
u16 smid;
u16 handle;
int r;
struct scsi_cmnd *scmd_lookup;
printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
ioc->name, scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* search for the command */
smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
if (!smid) {
scmd->result = DID_RESET << 16;
r = SUCCESS;
goto out;
}
/* for hidden raid components and volumes this is not supported */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT ||
sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mutex_lock(&ioc->tm_cmds.mutex);
handle = sas_device_priv_data->sas_target->handle;
mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
/* sanity check - see whether command actually completed */
scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
r = FAILED;
else
r = SUCCESS;
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
out:
printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* scsih_dev_reset - eh threads main device reset routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
scsih_dev_reset(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
u16 handle;
int r;
printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
ioc->name, scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc,
sas_device_priv_data->sas_target->handle);
if (sas_device)
handle = sas_device->volume_handle;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mutex_lock(&ioc->tm_cmds.mutex);
mpt2sas_scsih_issue_tm(ioc, handle, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
/*
* sanity check see whether all commands to this target been
* completed
*/
if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
scmd->device->channel))
r = FAILED;
else
r = SUCCESS;
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
out:
printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* scsih_abort - eh threads main host reset routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
scsih_host_reset(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
int r, retval;
printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
r = (retval < 0) ? FAILED : SUCCESS;
printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_fw_event_add - insert and queue up fw_event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* This adds the firmware event object into link list, then queues it up to
* be processed from user context.
*
* Return nothing.
*/
static void
_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
unsigned long flags;
if (ioc->firmware_event_thread == NULL)
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_WORK(&fw_event->work, _firmware_event_work);
queue_work(ioc->firmware_event_thread, &fw_event->work);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_free - delete fw_event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* This removes firmware event object from link list, frees associated memory.
*
* Return nothing.
*/
static void
_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
*fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_del(&fw_event->list);
kfree(fw_event->event_data);
kfree(fw_event);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_add - requeue an event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* Return nothing.
*/
static void
_scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
*fw_event, unsigned long delay)
{
unsigned long flags;
if (ioc->firmware_event_thread == NULL)
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
queue_work(ioc->firmware_event_thread, &fw_event->work);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_off - turn flag off preventing event handling
* @ioc: per adapter object
*
* Used to prevent handling of firmware events during adapter reset
* driver unload.
*
* Return nothing.
*/
static void
_scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
ioc->fw_events_off = 1;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_on - turn flag on allowing firmware event handling
* @ioc: per adapter object
*
* Returns nothing.
*/
static void
_scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
ioc->fw_events_off = 0;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_ublock_io_device - set the device state to SDEV_RUNNING
* @ioc: per adapter object
* @handle: device handle
*
* During device pull we need to appropiately set the sdev state.
*/
static void
_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (!sas_device_priv_data->block)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
MPT2SAS_INFO_FMT "SDEV_RUNNING: "
"handle(0x%04x)\n", ioc->name, handle));
sas_device_priv_data->block = 0;
scsi_device_set_state(sdev, SDEV_RUNNING);
}
}
}
/**
* _scsih_block_io_device - set the device state to SDEV_BLOCK
* @ioc: per adapter object
* @handle: device handle
*
* During device pull we need to appropiately set the sdev state.
*/
static void
_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->block)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
MPT2SAS_INFO_FMT "SDEV_BLOCK: "
"handle(0x%04x)\n", ioc->name, handle));
sas_device_priv_data->block = 1;
scsi_device_set_state(sdev, SDEV_BLOCK);
}
}
}
/**
* _scsih_block_io_to_children_attached_to_ex
* @ioc: per adapter object
* @sas_expander: the sas_device object
*
* This routine set sdev state to SDEV_BLOCK for all devices
* attached to this expander. This function called when expander is
* pulled.
*/
static void
_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device =
mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
continue;
_scsih_block_io_device(ioc, sas_device->handle);
}
}
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
expander_sibling =
mpt2sas_scsih_expander_find_by_sas_address(
ioc, mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_block_io_to_children_attached_to_ex(ioc,
expander_sibling);
}
}
}
/**
* _scsih_block_io_to_children_attached_directly
* @ioc: per adapter object
* @event_data: topology change event data
*
* This routine set sdev state to SDEV_BLOCK for all devices
* direct attached during device pull.
*/
static void
_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
}
}
/**
* _scsih_check_topo_delete_events - sanity check on topo events
* @ioc: per adapter object
* @event_data: the event data payload
*
* This routine added to better handle cable breaker.
*
* This handles the case where driver recieves multiple expander
* add and delete events in a single shot. When there is a delete event
* the routine will void any pending add events waiting in the event queue.
*
* Return nothing.
*/
static void
_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
struct fw_event_work *fw_event;
Mpi2EventDataSasTopologyChangeList_t *local_event_data;
u16 expander_handle;
struct _sas_node *sas_expander;
unsigned long flags;
expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
if (expander_handle < ioc->sas_hba.num_phys) {
_scsih_block_io_to_children_attached_directly(ioc, event_data);
return;
}
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
|| event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
expander_handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
} else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
_scsih_block_io_to_children_attached_directly(ioc, event_data);
if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
return;
/* mark ignore flag for pending events */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
fw_event->ignore)
continue;
local_event_data = fw_event->event_data;
if (local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_ADDED ||
local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
expander_handle) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"setting ignoring flag\n", ioc->name));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_queue_rescan - queue a topology rescan from user context
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
if (ioc->wait_for_port_enable_to_complete)
return;
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event)
return;
fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
}
/**
* _scsih_flush_running_cmds - completing outstanding commands.
* @ioc: per adapter object
*
* The flushing out of all pending scmd commands following host reset,
* where all IO is dropped to the floor.
*
* Return nothing.
*/
static void
_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
{
struct scsi_cmnd *scmd;
u16 smid;
u16 count = 0;
for (smid = 1; smid <= ioc->request_depth; smid++) {
scmd = _scsih_scsi_lookup_getclear(ioc, smid);
if (!scmd)
continue;
count++;
mpt2sas_base_free_smid(ioc, smid);
scsi_dma_unmap(scmd);
scmd->result = DID_RESET << 16;
scmd->scsi_done(scmd);
}
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
ioc->name, count));
}
/**
* mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
* @ioc: per adapter object
* @reset_phase: phase
*
* The handler for doing any required cleanup or initialization.
*
* The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
* MPT2_IOC_DONE_RESET
*
* Return nothing.
*/
void
mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
{
switch (reset_phase) {
case MPT2_IOC_PRE_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
_scsih_fw_event_off(ioc);
break;
case MPT2_IOC_AFTER_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
ioc->tm_cmds.status |= MPT2_CMD_RESET;
mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
complete(&ioc->tm_cmds.done);
}
_scsih_fw_event_on(ioc);
_scsih_flush_running_cmds(ioc);
break;
case MPT2_IOC_DONE_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
_scsih_queue_rescan(ioc);
break;
}
}
/**
* scsih_qcmd - main scsi request entry point
* @scmd: pointer to scsi command object
* @done: function pointer to be invoked on completion
*
* The callback index is set inside `ioc->scsi_io_cb_idx`.
*
* Returns 0 on success. If there's a failure, return either:
* SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
* SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
*/
static int
scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct MPT2SAS_TARGET *sas_target_priv_data;
Mpi2SCSIIORequest_t *mpi_request;
u32 mpi_control;
u16 smid;
unsigned long flags;
scmd->scsi_done = done;
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
sas_target_priv_data = sas_device_priv_data->sas_target;
if (!sas_target_priv_data || sas_target_priv_data->handle ==
MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
/* see if we are busy with task managment stuff */
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (sas_target_priv_data->tm_busy ||
ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
return SCSI_MLQUEUE_HOST_BUSY;
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
if (scmd->sc_data_direction == DMA_FROM_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_READ;
else if (scmd->sc_data_direction == DMA_TO_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
else
mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
/* set tags */
if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
if (scmd->device->tagged_supported) {
if (scmd->device->ordered_tags)
mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
else
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
} else
/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
*/
mpi_control |= (0x500);
} else
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
if (!smid) {
printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
goto out;
}
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
else
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
mpi_request->DevHandle =
cpu_to_le16(sas_device_priv_data->sas_target->handle);
mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
mpi_request->Control = cpu_to_le32(mpi_control);
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
mpi_request->SenseBufferLowAddress =
(u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
mpi_request->LUN);
memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
if (!mpi_request->DataLength) {
mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
} else {
if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
mpt2sas_base_free_smid(ioc, smid);
goto out;
}
}
_scsih_scsi_lookup_set(ioc, smid, scmd);
mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
sas_device_priv_data->sas_target->handle);
return 0;
out:
return SCSI_MLQUEUE_HOST_BUSY;
}
/**
* _scsih_normalize_sense - normalize descriptor and fixed format sense data
* @sense_buffer: sense data returned by target
* @data: normalized skey/asc/ascq
*
* Return nothing.
*/
static void
_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
{
if ((sense_buffer[0] & 0x7F) >= 0x72) {
/* descriptor format */
data->skey = sense_buffer[1] & 0x0F;
data->asc = sense_buffer[2];
data->ascq = sense_buffer[3];
} else {
/* fixed format */
data->skey = sense_buffer[2] & 0x0F;
data->asc = sense_buffer[12];
data->ascq = sense_buffer[13];
}
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
* @ioc: per adapter object
* @scmd: pointer to scsi command object
* @mpi_reply: reply mf payload returned from firmware
*
* scsi_status - SCSI Status code returned from target device
* scsi_state - state info associated with SCSI_IO determined by ioc
* ioc_status - ioc supplied status info
*
* Return nothing.
*/
static void
_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
{
u32 response_info;
u8 *response_bytes;
u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
MPI2_IOCSTATUS_MASK;
u8 scsi_state = mpi_reply->SCSIState;
u8 scsi_status = mpi_reply->SCSIStatus;
char *desc_ioc_state = NULL;
char *desc_scsi_status = NULL;
char *desc_scsi_state = ioc->tmp_string;
switch (ioc_status) {
case MPI2_IOCSTATUS_SUCCESS:
desc_ioc_state = "success";
break;
case MPI2_IOCSTATUS_INVALID_FUNCTION:
desc_ioc_state = "invalid function";
break;
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
desc_ioc_state = "scsi recovered error";
break;
case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
desc_ioc_state = "scsi invalid dev handle";
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
desc_ioc_state = "scsi device not there";
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
desc_ioc_state = "scsi data overrun";
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
desc_ioc_state = "scsi data underrun";
break;
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
desc_ioc_state = "scsi io data error";
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
desc_ioc_state = "scsi protocol error";
break;
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
desc_ioc_state = "scsi task terminated";
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
desc_ioc_state = "scsi residual mismatch";
break;
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
desc_ioc_state = "scsi task mgmt failed";
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
desc_ioc_state = "scsi ioc terminated";
break;
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
desc_ioc_state = "scsi ext terminated";
break;
default:
desc_ioc_state = "unknown";
break;
}
switch (scsi_status) {
case MPI2_SCSI_STATUS_GOOD:
desc_scsi_status = "good";
break;
case MPI2_SCSI_STATUS_CHECK_CONDITION:
desc_scsi_status = "check condition";
break;
case MPI2_SCSI_STATUS_CONDITION_MET:
desc_scsi_status = "condition met";
break;
case MPI2_SCSI_STATUS_BUSY:
desc_scsi_status = "busy";
break;
case MPI2_SCSI_STATUS_INTERMEDIATE:
desc_scsi_status = "intermediate";
break;
case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
desc_scsi_status = "intermediate condmet";
break;
case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
desc_scsi_status = "reservation conflict";
break;
case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
desc_scsi_status = "command terminated";
break;
case MPI2_SCSI_STATUS_TASK_SET_FULL:
desc_scsi_status = "task set full";
break;
case MPI2_SCSI_STATUS_ACA_ACTIVE:
desc_scsi_status = "aca active";
break;
case MPI2_SCSI_STATUS_TASK_ABORTED:
desc_scsi_status = "task aborted";
break;
default:
desc_scsi_status = "unknown";
break;
}
desc_scsi_state[0] = '\0';
if (!scsi_state)
desc_scsi_state = " ";
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
strcat(desc_scsi_state, "response info ");
if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
strcat(desc_scsi_state, "state terminated ");
if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
strcat(desc_scsi_state, "no status ");
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
strcat(desc_scsi_state, "autosense failed ");
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
strcat(desc_scsi_state, "autosense valid ");
scsi_print_command(scmd);
printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
"ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
ioc_status, smid);
printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
"resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
scsi_get_resid(scmd));
printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
"sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
le32_to_cpu(mpi_reply->TransferCount), scmd->result);
printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
"scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
scsi_status, desc_scsi_state, scsi_state);
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
_scsih_normalize_sense(scmd->sense_buffer, &data);
printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
"[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
data.asc, data.ascq);
}
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
response_info = le32_to_cpu(mpi_reply->ResponseInfo);
response_bytes = (u8 *)&response_info;
_scsih_response_code(ioc, response_bytes[3]);
}
}
#endif
/**
* _scsih_smart_predicted_fault - illuminate Fault LED
* @ioc: per adapter object
* @handle: device handle
*
* Return nothing.
*/
static void
_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
struct scsi_target *starget;
struct MPT2SAS_TARGET *sas_target_priv_data;
Mpi2EventNotificationReply_t *event_reply;
Mpi2EventDataSasDeviceStatusChange_t *event_data;
struct _sas_device *sas_device;
ssize_t sz;
unsigned long flags;
/* only handle non-raid devices */
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);
return;
}
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
starget_printk(KERN_WARNING, starget, "predicted fault\n");
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
mpi_request.SlotStatus =
MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
mpi_request.DevHandle = cpu_to_le16(handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
"enclosure_processor: ioc_status (0x%04x), "
"loginfo(0x%08x)\n", ioc->name,
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
return;
}
}
/* insert into event log */
sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
sizeof(Mpi2EventDataSasDeviceStatusChange_t);
event_reply = kzalloc(sz, GFP_KERNEL);
if (!event_reply) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
event_reply->Event =
cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
event_reply->MsgLength = sz/4;
event_reply->EventDataLength =
cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
event_reply->EventData;
event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
event_data->ASC = 0x5D;
event_data->DevHandle = cpu_to_le16(handle);
event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
mpt2sas_ctl_add_to_event_log(ioc, event_reply);
kfree(event_reply);
}
/**
* scsih_io_done - scsi request callback
* @ioc: per adapter object
* @smid: system request message index
* @VF_ID: virtual function id
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when using scsih_qcmd.
*
* Return nothing.
*/
static void
scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
{
Mpi2SCSIIORequest_t *mpi_request;
Mpi2SCSIIOReply_t *mpi_reply;
struct scsi_cmnd *scmd;
u16 ioc_status;
u32 xfer_cnt;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
struct MPT2SAS_DEVICE *sas_device_priv_data;
u32 response_code;
mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
scmd = _scsih_scsi_lookup_getclear(ioc, smid);
if (scmd == NULL)
return;
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
if (mpi_reply == NULL) {
scmd->result = DID_OK << 16;
goto out;
}
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
sas_device_priv_data->sas_target->deleted) {
scmd->result = DID_NO_CONNECT << 16;
goto out;
}
/* turning off TLR */
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 = (le32_to_cpu(mpi_reply->ResponseInfo)
>> 24);
if (response_code ==
MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
sas_device_priv_data->flags &=
~MPT_DEVICE_TLR_ON;
}
}
xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
else
log_info = 0;
ioc_status &= MPI2_IOCSTATUS_MASK;
scsi_state = mpi_reply->SCSIState;
scsi_status = mpi_reply->SCSIStatus;
if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
(scsi_status == MPI2_SCSI_STATUS_BUSY ||
scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
ioc_status = MPI2_IOCSTATUS_SUCCESS;
}
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
smid);
u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
le32_to_cpu(mpi_reply->SenseCount));
memcpy(scmd->sense_buffer, sense_data, sz);
_scsih_normalize_sense(scmd->sense_buffer, &data);
/* failure prediction threshold exceeded */
if (data.asc == 0x5D)
_scsih_smart_predicted_fault(ioc,
le16_to_cpu(mpi_reply->DevHandle));
}
switch (ioc_status) {
case MPI2_IOCSTATUS_BUSY:
case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
scmd->result = SAM_STAT_BUSY;
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
scmd->result = DID_NO_CONNECT << 16;
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
if (sas_device_priv_data->block) {
scmd->result = (DID_BUS_BUSY << 16);
break;
}
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
scmd->result = DID_SOFT_ERROR << 16;
else
scmd->result = (DID_OK << 16) | scsi_status;
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
scmd->result = (DID_OK << 16) | scsi_status;
if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
break;
if (xfer_cnt < scmd->underflow) {
if (scsi_status == SAM_STAT_BUSY)
scmd->result = SAM_STAT_BUSY;
else
scmd->result = DID_SOFT_ERROR << 16;
} else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
scmd->result = (DRIVER_SENSE << 24) |
SAM_STAT_CHECK_CONDITION;
scmd->sense_buffer[0] = 0x70;
scmd->sense_buffer[2] = ILLEGAL_REQUEST;
scmd->sense_buffer[12] = 0x20;
scmd->sense_buffer[13] = 0;
}
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
scsi_set_resid(scmd, 0);
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
case MPI2_IOCSTATUS_SUCCESS:
scmd->result = (DID_OK << 16) | scsi_status;
if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
case MPI2_IOCSTATUS_INVALID_FUNCTION:
case MPI2_IOCSTATUS_INVALID_SGL:
case MPI2_IOCSTATUS_INTERNAL_ERROR:
case MPI2_IOCSTATUS_INVALID_FIELD:
case MPI2_IOCSTATUS_INVALID_STATE:
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
default:
scmd->result = DID_SOFT_ERROR << 16;
break;
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
_scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
#endif
out:
scsi_dma_unmap(scmd);
scmd->scsi_done(scmd);
}
/**
* _scsih_link_change - process phy link changes
* @ioc: per adapter object
* @handle: phy handle
* @attached_handle: valid for devices attached to link
* @phy_number: phy number
* @link_rate: new link rate
* Context: user.
*
* Return nothing.
*/
static void
_scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
u8 phy_number, u8 link_rate)
{
mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
phy_number, link_rate);
}
/**
* _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
* possible that the handles may change from the previous setting, so this
* code keeping handles updating if changed.
*
* Return nothing.
*/
static void
_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
{
u16 sz;
u16 ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
"updating handles for sas_host(0x%016llx)\n",
ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
* sizeof(Mpi2SasIOUnit0PhyData_t));
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
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)
_scsih_link_change(ioc,
ioc->sas_hba.phy[i].handle,
le16_to_cpu(sas_iounit_pg0->PhyData[i].
AttachedDevHandle), i,
sas_iounit_pg0->PhyData[i].
NegotiatedLinkRate >> 4);
}
}
out:
kfree(sas_iounit_pg0);
}
/**
* _scsih_sas_host_add - create sas host object
* @ioc: per adapter object
*
* Creating host side data object, stored in ioc->sas_hba
*
* Return nothing.
*/
static void
_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
{
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
Mpi2SasPhyPage0_t phy_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2SasEnclosurePage0_t enclosure_pg0;
u16 ioc_status;
u16 sz;
u16 device_missing_delay;
mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
if (!ioc->sas_hba.num_phys) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
/* sas_iounit page 0 */
sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
sizeof(Mpi2SasIOUnit0PhyData_t));
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
/* sas_iounit page 1 */
sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
sizeof(Mpi2SasIOUnit1PhyData_t));
sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg1) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
sas_iounit_pg1, sz))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->io_missing_delay =
le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
device_missing_delay =
le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
ioc->device_missing_delay = (device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
else
ioc->device_missing_delay = device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!ioc->sas_hba.phy) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
i))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.phy[i].handle =
le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
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))) {
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);
printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
"sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
(unsigned long long) ioc->sas_hba.sas_address,
ioc->sas_hba.num_phys) ;
if (ioc->sas_hba.enclosure_handle) {
if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
ioc->sas_hba.enclosure_handle))) {
ioc->sas_hba.enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
}
out:
kfree(sas_iounit_pg1);
kfree(sas_iounit_pg0);
}
/**
* _scsih_expander_add - creating expander object
* @ioc: per adapter object
* @handle: expander handle
*
* Creating expander object, stored in ioc->sas_expander_list.
*
* Return 0 for success, else error.
*/
static int
_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander;
Mpi2ConfigReply_t mpi_reply;
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ExpanderPage1_t expander_pg1;
Mpi2SasEnclosurePage0_t enclosure_pg0;
u32 ioc_status;
u16 parent_handle;
__le64 sas_address;
int i;
unsigned long flags;
struct _sas_port *mpt2sas_port;
int rc = 0;
if (!handle)
return -1;
if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
/* handle out of order topology events */
parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
if (parent_handle >= ioc->sas_hba.num_phys) {
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) {
rc = _scsih_expander_add(ioc, parent_handle);
if (rc != 0)
return rc;
}
}
sas_address = le64_to_cpu(expander_pg0.SASAddress);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
return 0;
sas_expander = kzalloc(sizeof(struct _sas_node),
GFP_KERNEL);
if (!sas_expander) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
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 = 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)
sas_expander->sas_address, sas_expander->num_phys);
if (!sas_expander->num_phys)
goto out_fail;
sas_expander->phy = kcalloc(sas_expander->num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!sas_expander->phy) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
INIT_LIST_HEAD(&sas_expander->sas_port_list);
mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
sas_expander->parent_handle);
if (!mpt2sas_port) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
continue;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i],
expander_pg1, sas_expander->parent_dev);
}
if (sas_expander->enclosure_handle) {
if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
sas_expander->enclosure_handle))) {
sas_expander->enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
}
_scsih_expander_node_add(ioc, sas_expander);
return 0;
out_fail:
if (sas_expander)
kfree(sas_expander->phy);
kfree(sas_expander);
return rc;
}
/**
* _scsih_expander_remove - removing expander object
* @ioc: per adapter object
* @handle: expander handle
*
* Return nothing.
*/
static void
_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_expander_node_remove(ioc, sas_expander);
}
/**
* _scsih_add_device - creating sas device object
* @ioc: per adapter object
* @handle: sas device handle
* @phy_num: phy number end device attached to
* @is_pd: is this hidden raid component
*
* Creating end device object, stored in ioc->sas_device_list.
*
* Returns 0 for success, non-zero for failure.
*/
static int
_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2SasEnclosurePage0_t enclosure_pg0;
struct _sas_device *sas_device;
u32 ioc_status;
__le64 sas_address;
u32 device_info;
unsigned long flags;
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 -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
ioc->name, le16_to_cpu(sas_device_pg0.Flags));
return -1;
}
/* check if there were any issus with discovery */
if (sas_device_pg0.AccessStatus ==
MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
ioc->name, sas_device_pg0.AccessStatus);
return -1;
}
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
_scsih_ublock_io_device(ioc, handle);
return 0;
}
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
if (!sas_device) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
sas_device->handle = handle;
sas_device->parent_handle =
le16_to_cpu(sas_device_pg0.ParentDevHandle);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
sas_device->slot =
le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->hidden_raid_component = is_pd;
/* get enclosure_logical_id */
if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply, &enclosure_pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
sas_device->enclosure_handle))) {
sas_device->enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
/* get device name */
sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
if (ioc->wait_for_port_enable_to_complete)
_scsih_sas_device_init_add(ioc, sas_device);
else
_scsih_sas_device_add(ioc, sas_device);
return 0;
}
/**
* _scsih_remove_device - removing sas device object
* @ioc: per adapter object
* @handle: sas device handle
*
* Return nothing.
*/
static void
_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
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;
/* 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);
return;
}
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
"(0x%04x)\n", ioc->name, __func__, handle));
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)
goto out;
/* Target Reset to flush out all the outstanding IO */
device_handle = (sas_device->hidden_raid_component) ?
sas_device->volume_handle : handle;
if (device_handle) {
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
"handle(0x%04x)\n", ioc->name, device_handle));
mutex_lock(&ioc->tm_cmds.mutex);
mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
"done: handle(0x%04x)\n", ioc->name, device_handle));
}
/* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
"(0x%04x)\n", ioc->name, handle));
memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request.DevHandle = handle;
mpi_request.VF_ID = 0;
if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
&mpi_request)) != 0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
}
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
"(0x%04x), loginfo(0x%08x)\n", ioc->name,
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
out:
mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
sas_device->parent_handle);
printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
"(0x%016llx)\n", ioc->name, sas_device->handle,
(unsigned long long) sas_device->sas_address);
_scsih_sas_device_remove(ioc, sas_device);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
"(0x%04x)\n", ioc->name, __func__, handle));
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_topology_change_event_debug - debug for topology event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
char *status_str = NULL;
char link_rate[25];
switch (event_data->ExpStatus) {
case MPI2_EVENT_SAS_TOPO_ES_ADDED:
status_str = "add";
break;
case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
status_str = "remove";
break;
case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
status_str = "responding";
break;
case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
ioc->name, status_str);
printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
"start_phy(%02d), count(%d)\n",
le16_to_cpu(event_data->ExpanderDevHandle),
le16_to_cpu(event_data->EnclosureHandle),
event_data->StartPhyNum, event_data->NumEntries);
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
snprintf(link_rate, 25, ": add, link(0x%02x)",
(event_data->PHY[i].LinkRate >> 4));
status_str = link_rate;
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
status_str = ": remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
status_str = ": remove_delay";
break;
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
snprintf(link_rate, 25, ": link(0x%02x)",
(event_data->PHY[i].LinkRate >> 4));
status_str = link_rate;
break;
case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
status_str = ": responding";
break;
default:
status_str = ": unknown";
break;
}
printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
phy_number, handle, status_str);
}
}
#endif
/**
* _scsih_sas_topology_change_event - handle topology changes
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* fw_event:
* Context: user.
*
*/
static void
_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasTopologyChangeList_t *event_data,
struct fw_event_work *fw_event)
{
int i;
u16 parent_handle, handle;
u16 reason_code;
u8 phy_number;
struct _sas_node *sas_expander;
unsigned long flags;
u8 link_rate_;
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_topology_change_event_debug(ioc, event_data);
#endif
if (!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
else
_scsih_sas_host_refresh(ioc, 0);
if (fw_event->ignore) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
"event\n", ioc->name));
return;
}
parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
/* handle expander add */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
if (_scsih_expander_add(ioc, parent_handle) != 0)
return;
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
"expander event\n", ioc->name));
return;
}
if (event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
continue;
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
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)
_scsih_link_change(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)
_scsih_link_change(ioc,
sas_expander->
phy[phy_number].handle,
handle, phy_number,
link_rate_);
}
}
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
_scsih_ublock_io_device(ioc, handle);
}
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);
break;
}
}
/* handle expander removal */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
_scsih_expander_remove(ioc, parent_handle);
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_device_status_change_event_debug - debug for device event
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
reason_str = "smart data";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
reason_str = "unsupported device discovered";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
reason_str = "internal device reset";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
reason_str = "internal task abort";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
reason_str = "internal task abort set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
reason_str = "internal clear task set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
reason_str = "internal query task";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
reason_str = "sata init failure";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
reason_str = "internal device reset complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
reason_str = "internal task abort complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
reason_str = "internal async notification";
break;
default:
reason_str = "unknown reason";
break;
}
printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
"\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
reason_str, le16_to_cpu(event_data->DevHandle),
(unsigned long long)le64_to_cpu(event_data->SASAddress));
if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
event_data->ASC, event_data->ASCQ);
printk(KERN_INFO "\n");
}
#endif
/**
* _scsih_sas_device_status_change_event - handle device status change
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_device_status_change_event_debug(ioc, event_data);
#endif
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_ENCL_RC_ADDED:
reason_str = "enclosure add";
break;
case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
reason_str = "enclosure remove";
break;
default:
reason_str = "unknown reason";
break;
}
printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
"\thandle(0x%04x), enclosure logical id(0x%016llx)"
" number slots(%d)\n", ioc->name, reason_str,
le16_to_cpu(event_data->EnclosureHandle),
(unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
le16_to_cpu(event_data->StartSlot));
}
#endif
/**
* _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
event_data);
#endif
}
/**
* _scsih_sas_broadcast_primative_event - handle broadcast events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasBroadcastPrimitive_t *event_data)
{
struct scsi_cmnd *scmd;
u16 smid, handle;
u32 lun;
struct MPT2SAS_DEVICE *sas_device_priv_data;
u32 termination_count;
u32 query_count;
Mpi2SCSITaskManagementReply_t *mpi_reply;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
"phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
event_data->PortWidth));
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
__func__));
mutex_lock(&ioc->tm_cmds.mutex);
termination_count = 0;
query_count = 0;
mpi_reply = ioc->tm_cmds.reply;
for (smid = 1; smid <= ioc->request_depth; smid++) {
scmd = _scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
continue;
/* skip hidden raid components */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
continue;
/* skip volumes */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_VOLUME)
continue;
handle = sas_device_priv_data->sas_target->handle;
lun = sas_device_priv_data->lun;
query_count++;
mpt2sas_scsih_issue_tm(ioc, handle, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
(mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
continue;
mpt2sas_scsih_issue_tm(ioc, handle, lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
}
ioc->broadcast_aen_busy = 0;
mutex_unlock(&ioc->tm_cmds.mutex);
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s - exit, query_count = %d termination_count = %d\n",
ioc->name, __func__, query_count, termination_count));
}
/**
* _scsih_sas_discovery_event - handle discovery events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasDiscovery_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
(event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
"start" : "stop");
if (event_data->DiscoveryStatus)
printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
printk("\n");
}
#endif
if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
}
/**
* _scsih_reprobe_lun - reprobing lun
* @sdev: scsi device struct
* @no_uld_attach: sdev->no_uld_attach flag setting
*
**/
static void
_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
{
int rc;
sdev->no_uld_attach = no_uld_attach ? 1 : 0;
sdev_printk(KERN_INFO, sdev, "%s raid component\n",
sdev->no_uld_attach ? "hidding" : "exposing");
rc = scsi_device_reprobe(sdev);
}
/**
* _scsih_reprobe_target - reprobing target
* @starget: scsi target struct
* @no_uld_attach: sdev->no_uld_attach flag setting
*
* Note: no_uld_attach flag determines whether the disk device is attached
* to block layer. A value of `1` means to not attach.
**/
static void
_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
{
struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
if (no_uld_attach)
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
else
sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
_scsih_reprobe_lun);
}
/**
* _scsih_sas_volume_add - add new volume
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
unsigned long flags;
u64 wwid;
u16 handle = le16_to_cpu(element->VolDevHandle);
int rc;
#if 0 /* RAID_HACKS */
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
return;
#endif
mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
return;
}
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
return;
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
return;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
if (!ioc->wait_for_port_enable_to_complete) {
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else
_scsih_determine_boot_device(ioc, raid_device, 1);
}
/**
* _scsih_sas_volume_delete - delete volume
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
u16 handle = le16_to_cpu(element->VolDevHandle);
unsigned long flags;
struct MPT2SAS_TARGET *sas_target_priv_data;
#if 0 /* RAID_HACKS */
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
return;
#endif
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 (raid_device->starget) {
sas_target_priv_data = raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
scsi_remove_target(&raid_device->starget->dev);
}
_scsih_raid_device_remove(ioc, raid_device);
}
/**
* _scsih_sas_pd_expose - expose pd component to /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* exposing raid component */
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
sas_device->hidden_raid_component = 0;
_scsih_reprobe_target(sas_device->starget, 0);
}
/**
* _scsih_sas_pd_hide - hide pd component from /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* hiding raid component */
mpt2sas_config_get_volume_handle(ioc, handle,
&sas_device->volume_handle);
mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
&sas_device->volume_wwid);
sas_device->hidden_raid_component = 1;
_scsih_reprobe_target(sas_device->starget, 1);
}
/**
* _scsih_sas_pd_delete - delete pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
_scsih_remove_device(ioc, handle);
}
/**
* _scsih_sas_pd_add - remove pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
sas_device->hidden_raid_component = 1;
else
_scsih_add_device(ioc, handle, 0, 1);
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
u8 element_type;
int i;
char *reason_str = NULL, *element_str = NULL;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
ioc->name, (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
"foreign" : "native", event_data->NumElements);
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
reason_str = "add";
break;
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
reason_str = "remove";
break;
case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
reason_str = "no change";
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
reason_str = "hide";
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
reason_str = "unhide";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
reason_str = "volume_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
reason_str = "volume_deleted";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
reason_str = "pd_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
reason_str = "pd_deleted";
break;
default:
reason_str = "unknown reason";
break;
}
element_type = le16_to_cpu(element->ElementFlags) &
MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
switch (element_type) {
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
element_str = "volume";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
element_str = "phys disk";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
element_str = "hot spare";
break;
default:
element_str = "unknown element";
break;
}
printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
"pd handle(0x%04x), pd num(0x%02x)\n", element_str,
reason_str, le16_to_cpu(element->VolDevHandle),
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
}
#endif
/**
* _scsih_sas_ir_config_change_event - handle ir configuration change events
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
int i;
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_config_change_event_debug(ioc, event_data);
#endif
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
_scsih_sas_volume_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
_scsih_sas_volume_delete(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
_scsih_sas_pd_hide(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
_scsih_sas_pd_expose(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
_scsih_sas_pd_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
_scsih_sas_pd_delete(ioc, element);
break;
}
}
}
/**
* _scsih_sas_ir_volume_event - IR volume event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrVolume_t *event_data)
{
u64 wwid;
unsigned long flags;
struct _raid_device *raid_device;
u16 handle;
u32 state;
int rc;
struct MPT2SAS_TARGET *sas_target_priv_data;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->VolDevHandle);
state = le32_to_cpu(event_data->NewValue);
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
"old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
le32_to_cpu(event_data->PreviousValue), state));
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);
switch (state) {
case MPI2_RAID_VOL_STATE_MISSING:
case MPI2_RAID_VOL_STATE_FAILED:
if (!raid_device)
break;
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);
}
_scsih_raid_device_remove(ioc, raid_device);
break;
case MPI2_RAID_VOL_STATE_ONLINE:
case MPI2_RAID_VOL_STATE_DEGRADED:
case MPI2_RAID_VOL_STATE_OPTIMAL:
if (raid_device)
break;
mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
break;
}
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
break;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
break;
case MPI2_RAID_VOL_STATE_INITIALIZING:
default:
break;
}
}
/**
* _scsih_sas_ir_physical_disk_event - PD event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrPhysicalDisk_t *event_data)
{
u16 handle;
u32 state;
struct _sas_device *sas_device;
unsigned long flags;
if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->PhysDiskDevHandle);
state = le32_to_cpu(event_data->NewValue);
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
"old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
le32_to_cpu(event_data->PreviousValue), state));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
switch (state) {
#if 0
case MPI2_RAID_PD_STATE_OFFLINE:
if (sas_device)
_scsih_remove_device(ioc, handle);
break;
#endif
case MPI2_RAID_PD_STATE_ONLINE:
case MPI2_RAID_PD_STATE_DEGRADED:
case MPI2_RAID_PD_STATE_REBUILDING:
case MPI2_RAID_PD_STATE_OPTIMAL:
if (sas_device)
sas_device->hidden_raid_component = 1;
else
_scsih_add_device(ioc, handle, 0, 1);
break;
case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
case MPI2_RAID_PD_STATE_HOT_SPARE:
default:
break;
}
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_ir_operation_status_event_debug - debug for IR op event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataIrOperationStatus_t *event_data)
{
char *reason_str = NULL;
switch (event_data->RAIDOperation) {
case MPI2_EVENT_IR_RAIDOP_RESYNC:
reason_str = "resync";
break;
case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
reason_str = "online capacity expansion";
break;
case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
reason_str = "consistency check";
break;
default:
reason_str = "unknown reason";
break;
}
printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
"\thandle(0x%04x), percent complete(%d)\n",
ioc->name, reason_str,
le16_to_cpu(event_data->VolDevHandle),
event_data->PercentComplete);
}
#endif
/**
* _scsih_sas_ir_operation_status_event - handle RAID operation events
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrOperationStatus_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_operation_status_event_debug(ioc, event_data);
#endif
}
/**
* _scsih_task_set_full - handle task set full
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Throttle back qdepth.
*/
static void
_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataTaskSetFull_t *event_data)
{
unsigned long flags;
struct _sas_device *sas_device;
static struct _raid_device *raid_device;
struct scsi_device *sdev;
int depth;
u16 current_depth;
u16 handle;
int id, channel;
u64 sas_address;
current_depth = le16_to_cpu(event_data->CurrentDepth);
handle = le16_to_cpu(event_data->DevHandle);
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);
return;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
id = sas_device->id;
channel = sas_device->channel;
sas_address = sas_device->sas_address;
/* if hidden raid component, then change to volume characteristics */
if (sas_device->hidden_raid_component && sas_device->volume_handle) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(
ioc, sas_device->volume_handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device) {
id = raid_device->id;
channel = raid_device->channel;
handle = raid_device->handle;
sas_address = raid_device->wwid;
}
}
if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
starget_printk(KERN_DEBUG, sas_device->starget, "task set "
"full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
handle, (unsigned long long)sas_address, current_depth);
shost_for_each_device(sdev, ioc->shost) {
if (sdev->id == id && sdev->channel == channel) {
if (current_depth > sdev->queue_depth) {
if (ioc->logging_level &
MPT_DEBUG_TASK_SET_FULL)
sdev_printk(KERN_INFO, sdev, "strange "
"observation, the queue depth is"
" (%d) meanwhile fw queue depth "
"is (%d)\n", sdev->queue_depth,
current_depth);
continue;
}
depth = scsi_track_queue_full(sdev,
current_depth - 1);
if (depth > 0)
sdev_printk(KERN_INFO, sdev, "Queue depth "
"reduced to (%d)\n", depth);
else if (depth < 0)
sdev_printk(KERN_INFO, sdev, "Tagged Command "
"Queueing is being disabled\n");
else if (depth == 0)
if (ioc->logging_level &
MPT_DEBUG_TASK_SET_FULL)
sdev_printk(KERN_INFO, sdev,
"Queue depth not changed yet\n");
}
}
}
/**
* _scsih_mark_responding_sas_device - mark a sas_devices as responding
* @ioc: per adapter object
* @sas_address: sas address
* @slot: enclosure slot id
* @handle: device handle
*
* After host reset, find out whether devices are still responding.
* Used in _scsi_remove_unresponsive_sas_devices.
*
* Return nothing.
*/
static void
_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
u16 slot, u16 handle)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct _sas_device *sas_device;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->sas_address == sas_address &&
sas_device->slot == slot && sas_device->starget) {
sas_device->responding = 1;
starget_printk(KERN_INFO, sas_device->starget,
"handle(0x%04x), sas_addr(0x%016llx), enclosure "
"logical id(0x%016llx), slot(%d)\n", handle,
(unsigned long long)sas_device->sas_address,
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->handle == handle)
goto out;
printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
sas_device->handle = handle;
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->handle = handle;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_search_responding_sas_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*
* Return nothing.
*/
static void
_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
__le64 sas_address;
u16 handle;
u32 device_info;
u16 slot;
printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
if (list_empty(&ioc->sas_device_list))
return;
handle = 0xFFFF;
while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
break;
handle = le16_to_cpu(sas_device_pg0.DevHandle);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
continue;
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
slot = le16_to_cpu(sas_device_pg0.Slot);
_scsih_mark_responding_sas_device(ioc, sas_address, slot,
handle);
}
}
/**
* _scsih_mark_responding_raid_device - mark a raid_device as responding
* @ioc: per adapter object
* @wwid: world wide identifier for raid volume
* @handle: device handle
*
* After host reset, find out whether devices are still responding.
* Used in _scsi_remove_unresponsive_raid_devices.
*
* Return nothing.
*/
static void
_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
u16 handle)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct _raid_device *raid_device;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid == wwid && raid_device->starget) {
raid_device->responding = 1;
starget_printk(KERN_INFO, raid_device->starget,
"handle(0x%04x), wwid(0x%016llx)\n", handle,
(unsigned long long)raid_device->wwid);
if (raid_device->handle == handle)
goto out;
printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
raid_device->handle);
raid_device->handle = handle;
starget = raid_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->handle = handle;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_search_responding_raid_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*
* Return nothing.
*/
static void
_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
{
Mpi2RaidVolPage1_t volume_pg1;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
if (list_empty(&ioc->raid_device_list))
return;
handle = 0xFFFF;
while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
break;
handle = le16_to_cpu(volume_pg1.DevHandle);
_scsih_mark_responding_raid_device(ioc,
le64_to_cpu(volume_pg1.WWID), handle);
}
}
/**
* _scsih_mark_responding_expander - mark a expander as responding
* @ioc: per adapter object
* @sas_address: sas address
* @handle:
*
* After host reset, find out whether devices are still responding.
* Used in _scsi_remove_unresponsive_expanders.
*
* Return nothing.
*/
static void
_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
u16 handle)
{
struct _sas_node *sas_expander;
unsigned long flags;
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;
}
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_search_responding_expanders -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*
* Return nothing.
*/
static void
_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
__le64 sas_address;
u16 handle;
printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
if (list_empty(&ioc->sas_expander_list))
return;
handle = 0xFFFF;
while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
break;
handle = le16_to_cpu(expander_pg0.DevHandle);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
printk(KERN_INFO "\texpander present: handle(0x%04x), "
"sas_addr(0x%016llx)\n", handle,
(unsigned long long)sas_address);
_scsih_mark_responding_expander(ioc, sas_address, handle);
}
}
/**
* _scsih_remove_unresponding_devices - removing unresponding devices
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *sas_device_next;
struct _sas_node *sas_expander, *sas_expander_next;
struct _raid_device *raid_device, *raid_device_next;
unsigned long flags;
_scsih_search_responding_sas_devices(ioc);
_scsih_search_responding_raid_devices(ioc);
_scsih_search_responding_expanders(ioc);
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
ioc->shost_recovery = 0;
if (ioc->shost->shost_state == SHOST_RECOVERY) {
printk(MPT2SAS_INFO_FMT "putting controller into "
"SHOST_RUNNING\n", ioc->name);
scsi_host_set_state(ioc->shost, SHOST_RUNNING);
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_list, list) {
if (sas_device->responding) {
sas_device->responding = 0;
continue;
}
if (sas_device->starget)
starget_printk(KERN_INFO, sas_device->starget,
"removing: handle(0x%04x), sas_addr(0x%016llx), "
"enclosure logical id(0x%016llx), slot(%d)\n",
sas_device->handle,
(unsigned long long)sas_device->sas_address,
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
_scsih_remove_device(ioc, sas_device->handle);
}
list_for_each_entry_safe(raid_device, raid_device_next,
&ioc->raid_device_list, list) {
if (raid_device->responding) {
raid_device->responding = 0;
continue;
}
if (raid_device->starget) {
starget_printk(KERN_INFO, raid_device->starget,
"removing: handle(0x%04x), wwid(0x%016llx)\n",
raid_device->handle,
(unsigned long long)raid_device->wwid);
scsi_remove_target(&raid_device->starget->dev);
}
_scsih_raid_device_remove(ioc, raid_device);
}
list_for_each_entry_safe(sas_expander, sas_expander_next,
&ioc->sas_expander_list, list) {
if (sas_expander->responding) {
sas_expander->responding = 0;
continue;
}
printk("\tremoving expander: handle(0x%04x), "
" sas_addr(0x%016llx)\n", sas_expander->handle,
(unsigned long long)sas_expander->sas_address);
_scsih_expander_remove(ioc, sas_expander->handle);
}
}
/**
* _firmware_event_work - delayed task for processing firmware events
* @ioc: per adapter object
* @work: equal to the fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_firmware_event_work(struct work_struct *work)
{
struct fw_event_work *fw_event = container_of(work,
struct fw_event_work, work);
unsigned long flags;
struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
/* This is invoked by calling _scsih_queue_rescan(). */
if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
_scsih_fw_event_free(ioc, fw_event);
_scsih_sas_host_refresh(ioc, 1);
_scsih_remove_unresponding_devices(ioc);
return;
}
/* the queue is being flushed so ignore this event */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (ioc->fw_events_off || ioc->remove_host) {
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
_scsih_fw_event_free(ioc, fw_event);
return;
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (ioc->shost_recovery) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
_scsih_fw_event_requeue(ioc, fw_event, 1000);
return;
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
switch (fw_event->event) {
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
fw_event->event_data, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
_scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_SAS_DISCOVERY:
_scsih_sas_discovery_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
_scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
_scsih_sas_enclosure_dev_status_change_event(ioc,
fw_event->VF_ID, fw_event->event_data);
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_IR_PHYSICAL_DISK:
_scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
_scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_TASK_SET_FULL:
_scsih_task_set_full(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
}
_scsih_fw_event_free(ioc, fw_event);
}
/**
* mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
* @ioc: per adapter object
* @VF_ID: virtual function id
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt.
*
* This function merely adds a new work task into ioc->firmware_event_thread.
* The tasks are worked from _firmware_event_work in user context.
*
* Return nothing.
*/
void
mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
{
struct fw_event_work *fw_event;
Mpi2EventNotificationReply_t *mpi_reply;
unsigned long flags;
u16 event;
/* events turned off due to host reset or driver unloading */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (ioc->fw_events_off || ioc->remove_host) {
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
return;
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
event = le16_to_cpu(mpi_reply->Event);
switch (event) {
/* handle these */
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
{
Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
mpi_reply->EventData;
if (baen_data->Primitive !=
MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
ioc->broadcast_aen_busy)
return;
ioc->broadcast_aen_busy = 1;
break;
}
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_check_topo_delete_events(ioc,
(Mpi2EventDataSasTopologyChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
case MPI2_EVENT_IR_OPERATION_STATUS:
case MPI2_EVENT_SAS_DISCOVERY:
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
case MPI2_EVENT_IR_VOLUME:
case MPI2_EVENT_IR_PHYSICAL_DISK:
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
case MPI2_EVENT_TASK_SET_FULL:
break;
default: /* ignore the rest */
return;
}
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
fw_event->event_data =
kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
if (!fw_event->event_data) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
kfree(fw_event);
return;
}
memcpy(fw_event->event_data, mpi_reply->EventData,
mpi_reply->EventDataLength*4);
fw_event->ioc = ioc;
fw_event->VF_ID = VF_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
}
/* shost template */
static struct scsi_host_template scsih_driver_template = {
.module = THIS_MODULE,
.name = "Fusion MPT SAS Host",
.proc_name = MPT2SAS_DRIVER_NAME,
.queuecommand = scsih_qcmd,
.target_alloc = scsih_target_alloc,
.slave_alloc = scsih_slave_alloc,
.slave_configure = scsih_slave_configure,
.target_destroy = scsih_target_destroy,
.slave_destroy = scsih_slave_destroy,
.change_queue_depth = scsih_change_queue_depth,
.change_queue_type = scsih_change_queue_type,
.eh_abort_handler = scsih_abort,
.eh_device_reset_handler = scsih_dev_reset,
.eh_host_reset_handler = scsih_host_reset,
.bios_param = scsih_bios_param,
.can_queue = 1,
.this_id = -1,
.sg_tablesize = MPT2SAS_SG_DEPTH,
.max_sectors = 8192,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mpt2sas_host_attrs,
.sdev_attrs = mpt2sas_dev_attrs,
};
/**
* _scsih_expander_node_remove - removing expander device from list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
* Context: Calling function should acquire ioc->sas_node_lock.
*
* Removing object and freeing associated memory from the
* ioc->sas_expander_list.
*
* Return nothing.
*/
static void
_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
/* remove sibling ports attached to this expander */
retry_device_search:
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device =
mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
continue;
_scsih_remove_device(ioc, sas_device->handle);
goto retry_device_search;
}
}
retry_expander_search:
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
expander_sibling =
mpt2sas_scsih_expander_find_by_sas_address(
ioc, mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!expander_sibling)
continue;
_scsih_expander_remove(ioc, expander_sibling->handle);
goto retry_expander_search;
}
}
mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_expander->parent_handle);
printk(MPT2SAS_INFO_FMT "expander_remove: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
sas_expander->handle, (unsigned long long)
sas_expander->sas_address);
list_del(&sas_expander->list);
kfree(sas_expander->phy);
kfree(sas_expander);
}
/**
* scsih_remove - detach and remove add host
* @pdev: PCI device struct
*
* Return nothing.
*/
static void __devexit
scsih_remove(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
struct workqueue_struct *wq;
unsigned long flags;
ioc->remove_host = 1;
_scsih_fw_event_off(ioc);
spin_lock_irqsave(&ioc->fw_event_lock, flags);
wq = ioc->firmware_event_thread;
ioc->firmware_event_thread = NULL;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
/* free ports attached to the sas_host */
retry_again:
list_for_each_entry(mpt2sas_port,
&ioc->sas_hba.sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
sas_device =
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);
goto retry_again;
}
} else {
expander_sibling =
mpt2sas_scsih_expander_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
if (expander_sibling) {
_scsih_expander_remove(ioc,
expander_sibling->handle);
goto retry_again;
}
}
}
/* free phys attached to the sas_host */
if (ioc->sas_hba.num_phys) {
kfree(ioc->sas_hba.phy);
ioc->sas_hba.phy = NULL;
ioc->sas_hba.num_phys = 0;
}
sas_remove_host(shost);
mpt2sas_base_detach(ioc);
list_del(&ioc->list);
scsi_remove_host(shost);
scsi_host_put(shost);
}
/**
* _scsih_probe_boot_devices - reports 1st device
* @ioc: per adapter object
*
* If specified in bios page 2, this routine reports the 1st
* device scsi-ml or sas transport for persistent boot device
* purposes. Please refer to function _scsih_determine_boot_device()
*/
static void
_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
{
u8 is_raid;
void *device;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
u16 handle, parent_handle;
u64 sas_address;
unsigned long flags;
int rc;
device = NULL;
if (ioc->req_boot_device.device) {
device = ioc->req_boot_device.device;
is_raid = ioc->req_boot_device.is_raid;
} else if (ioc->req_alt_boot_device.device) {
device = ioc->req_alt_boot_device.device;
is_raid = ioc->req_alt_boot_device.is_raid;
} else if (ioc->current_boot_device.device) {
device = ioc->current_boot_device.device;
is_raid = ioc->current_boot_device.is_raid;
}
if (!device)
return;
if (is_raid) {
raid_device = device;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else {
sas_device = device;
handle = sas_device->handle;
parent_handle = sas_device->parent_handle;
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)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
mpt2sas_transport_port_remove(ioc, sas_address,
parent_handle);
_scsih_sas_device_remove(ioc, sas_device);
}
}
}
/**
* _scsih_probe_raid - reporting raid volumes to scsi-ml
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
{
struct _raid_device *raid_device, *raid_next;
int rc;
list_for_each_entry_safe(raid_device, raid_next,
&ioc->raid_device_list, list) {
if (raid_device->starget)
continue;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
}
}
/**
* _scsih_probe_sas - reporting raid volumes to sas transport
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
{
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,
list) {
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);
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)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
mpt2sas_transport_port_remove(ioc, sas_address,
parent_handle);
_scsih_sas_device_remove(ioc, sas_device);
}
}
}
/**
* _scsih_probe_devices - probing for devices
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
{
u16 volume_mapping_flags =
le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
return; /* return when IOC doesn't support initiator mode */
_scsih_probe_boot_devices(ioc);
if (ioc->ir_firmware) {
if ((volume_mapping_flags &
MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
_scsih_probe_sas(ioc);
_scsih_probe_raid(ioc);
} else {
_scsih_probe_raid(ioc);
_scsih_probe_sas(ioc);
}
} else
_scsih_probe_sas(ioc);
}
/**
* scsih_probe - attach and add scsi host
* @pdev: PCI device struct
* @id: pci device id
*
* Returns 0 success, anything else error.
*/
static int
scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT2SAS_ADAPTER *ioc;
struct Scsi_Host *shost;
shost = scsi_host_alloc(&scsih_driver_template,
sizeof(struct MPT2SAS_ADAPTER));
if (!shost)
return -ENODEV;
/* init local params */
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
INIT_LIST_HEAD(&ioc->list);
list_add_tail(&ioc->list, &mpt2sas_ioc_list);
ioc->shost = shost;
ioc->id = mpt_ids++;
sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
ioc->pdev = pdev;
ioc->scsi_io_cb_idx = scsi_io_cb_idx;
ioc->tm_cb_idx = tm_cb_idx;
ioc->ctl_cb_idx = ctl_cb_idx;
ioc->base_cb_idx = base_cb_idx;
ioc->transport_cb_idx = transport_cb_idx;
ioc->config_cb_idx = config_cb_idx;
ioc->logging_level = logging_level;
/* misc semaphores and spin locks */
spin_lock_init(&ioc->ioc_reset_in_progress_lock);
spin_lock_init(&ioc->scsi_lookup_lock);
spin_lock_init(&ioc->sas_device_lock);
spin_lock_init(&ioc->sas_node_lock);
spin_lock_init(&ioc->fw_event_lock);
spin_lock_init(&ioc->raid_device_lock);
INIT_LIST_HEAD(&ioc->sas_device_list);
INIT_LIST_HEAD(&ioc->sas_device_init_list);
INIT_LIST_HEAD(&ioc->sas_expander_list);
INIT_LIST_HEAD(&ioc->fw_event_list);
INIT_LIST_HEAD(&ioc->raid_device_list);
INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
/* init shost parameters */
shost->max_cmd_len = 16;
shost->max_lun = max_lun;
shost->transportt = mpt2sas_transport_template;
shost->unique_id = ioc->id;
if ((scsi_add_host(shost, &pdev->dev))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
list_del(&ioc->list);
goto out_add_shost_fail;
}
/* event thread */
snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
"fw_event%d", ioc->id);
ioc->firmware_event_thread = create_singlethread_workqueue(
ioc->firmware_event_name);
if (!ioc->firmware_event_thread) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_thread_fail;
}
ioc->wait_for_port_enable_to_complete = 1;
if ((mpt2sas_base_attach(ioc))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_attach_fail;
}
ioc->wait_for_port_enable_to_complete = 0;
_scsih_probe_devices(ioc);
return 0;
out_attach_fail:
destroy_workqueue(ioc->firmware_event_thread);
out_thread_fail:
list_del(&ioc->list);
scsi_remove_host(shost);
out_add_shost_fail:
return -ENODEV;
}
#ifdef CONFIG_PM
/**
* scsih_suspend - power management suspend main entry point
* @pdev: PCI device struct
* @state: PM state change to (usually PCI_D3)
*
* Returns 0 success, anything else error.
*/
static int
scsih_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
u32 device_state;
flush_scheduled_work();
scsi_block_requests(shost);
device_state = pci_choose_state(pdev, state);
printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
"operating state [D%d]\n", ioc->name, pdev,
pci_name(pdev), device_state);
mpt2sas_base_free_resources(ioc);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, device_state);
return 0;
}
/**
* scsih_resume - power management resume main entry point
* @pdev: PCI device struct
*
* Returns 0 success, anything else error.
*/
static int
scsih_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
u32 device_state = pdev->current_state;
int r;
printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
"operating state [D%d]\n", ioc->name, pdev,
pci_name(pdev), device_state);
pci_set_power_state(pdev, PCI_D0);
pci_enable_wake(pdev, PCI_D0, 0);
pci_restore_state(pdev);
ioc->pdev = pdev;
r = mpt2sas_base_map_resources(ioc);
if (r)
return r;
mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
scsi_unblock_requests(shost);
return 0;
}
#endif /* CONFIG_PM */
static struct pci_driver scsih_driver = {
.name = MPT2SAS_DRIVER_NAME,
.id_table = scsih_pci_table,
.probe = scsih_probe,
.remove = __devexit_p(scsih_remove),
#ifdef CONFIG_PM
.suspend = scsih_suspend,
.resume = scsih_resume,
#endif
};
/**
* scsih_init - main entry point for this driver.
*
* Returns 0 success, anything else error.
*/
static int __init
scsih_init(void)
{
int error;
mpt_ids = 0;
printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
MPT2SAS_DRIVER_VERSION);
mpt2sas_transport_template =
sas_attach_transport(&mpt2sas_transport_functions);
if (!mpt2sas_transport_template)
return -ENODEV;
mpt2sas_base_initialize_callback_handler();
/* queuecommand callback hander */
scsi_io_cb_idx = mpt2sas_base_register_callback_handler(scsih_io_done);
/* task managment callback handler */
tm_cb_idx = mpt2sas_base_register_callback_handler(scsih_tm_done);
/* base internal commands callback handler */
base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
/* transport internal commands callback handler */
transport_cb_idx = mpt2sas_base_register_callback_handler(
mpt2sas_transport_done);
/* configuration page API internal commands callback handler */
config_cb_idx = mpt2sas_base_register_callback_handler(
mpt2sas_config_done);
/* ctl module callback handler */
ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
mpt2sas_ctl_init();
error = pci_register_driver(&scsih_driver);
if (error)
sas_release_transport(mpt2sas_transport_template);
return error;
}
/**
* scsih_exit - exit point for this driver (when it is a module).
*
* Returns 0 success, anything else error.
*/
static void __exit
scsih_exit(void)
{
printk(KERN_INFO "mpt2sas version %s unloading\n",
MPT2SAS_DRIVER_VERSION);
pci_unregister_driver(&scsih_driver);
sas_release_transport(mpt2sas_transport_template);
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);
mpt2sas_base_release_callback_handler(transport_cb_idx);
mpt2sas_base_release_callback_handler(config_cb_idx);
mpt2sas_base_release_callback_handler(ctl_cb_idx);
mpt2sas_ctl_exit();
}
module_init(scsih_init);
module_exit(scsih_exit);
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