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linux/drivers/scsi/mpt3sas/mpt3sas_scsih.c
Benoit Taine 9baa3c34ac PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to
meet kernel coding style guidelines.  This issue was reported by checkpatch.

A simplified version of the semantic patch that makes this change is as
follows (http://coccinelle.lip6.fr/):

// <smpl>

@@
identifier i;
declarer name DEFINE_PCI_DEVICE_TABLE;
initializer z;
@@

- DEFINE_PCI_DEVICE_TABLE(i)
+ const struct pci_device_id i[]
= z;

// </smpl>

[bhelgaas: add semantic patch]
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-08-12 12:15:14 -06:00

8175 lines
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/*
* Scsi Host Layer for MPT (Message Passing Technology) based controllers
*
* This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c
* Copyright (C) 2012-2013 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/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 <linux/aer.h>
#include <linux/raid_class.h>
#include "mpt3sas_base.h"
MODULE_AUTHOR(MPT3SAS_AUTHOR);
MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_VERSION(MPT3SAS_DRIVER_VERSION);
#define RAID_CHANNEL 1
/* forward proto's */
static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander);
static void _firmware_event_work(struct work_struct *work);
static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device);
static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u8 retry_count, u8 is_pd);
static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
static void _scsih_scan_start(struct Scsi_Host *shost);
static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
/* global parameters */
LIST_HEAD(mpt3sas_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 port_enable_cb_idx = -1;
static u8 transport_cb_idx = -1;
static u8 scsih_cb_idx = -1;
static u8 config_cb_idx = -1;
static int mpt_ids;
static u8 tm_tr_cb_idx = -1 ;
static u8 tm_tr_volume_cb_idx = -1 ;
static u8 tm_sas_control_cb_idx = -1;
/* command line options */
static u32 logging_level;
MODULE_PARM_DESC(logging_level,
" bits for enabling additional logging info (default=0)");
static ushort max_sectors = 0xFFFF;
module_param(max_sectors, ushort, 0);
MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
static int missing_delay[2] = {-1, -1};
module_param_array(missing_delay, int, NULL, 0);
MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT3SAS_MAX_LUN (16895)
static u64 max_lun = MPT3SAS_MAX_LUN;
module_param(max_lun, ullong, 0);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
/* diag_buffer_enable is bitwise
* bit 0 set = TRACE
* bit 1 set = SNAPSHOT
* bit 2 set = EXTENDED
*
* Either bit can be set, or both
*/
static int diag_buffer_enable = -1;
module_param(diag_buffer_enable, int, 0);
MODULE_PARM_DESC(diag_buffer_enable,
" post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
static int disable_discovery = -1;
module_param(disable_discovery, int, 0);
MODULE_PARM_DESC(disable_discovery, " disable discovery ");
/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
static int prot_mask = -1;
module_param(prot_mask, int, 0);
MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
/* raid transport support */
static struct raid_template *mpt3sas_raid_template;
/**
* 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 MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB)
#define MPT3SAS_TURN_ON_FAULT_LED (0xFFFC)
#define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD)
#define MPT3SAS_ABRT_TASK_SET (0xFFFE)
#define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
/**
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
* @cancel_pending_work: flag set during reset handling
* @ioc: per adapter object
* @device_handle: device handle
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @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;
u8 cancel_pending_work;
struct delayed_work delayed_work;
struct MPT3SAS_ADAPTER *ioc;
u16 device_handle;
u8 VF_ID;
u8 VP_ID;
u8 ignore;
u16 event;
char event_data[0] __aligned(4);
};
/* raid transport support */
static struct raid_template *mpt3sas_raid_template;
/**
* 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
* @timeout: timeout for this command
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @valid_reply: flag set for reply message
* @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 VF_ID;
u8 VP_ID;
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 const struct pci_device_id scsih_pci_table[] = {
/* Fury ~ 3004 and 3008 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
PCI_ANY_ID, PCI_ANY_ID },
/* Invader ~ 3108 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
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 mpt3sas_debug.h.
*/
static int
_scsih_set_debug_level(const char *val, struct kernel_param *kp)
{
int ret = param_set_int(val, kp);
struct MPT3SAS_ADAPTER *ioc;
if (ret)
return ret;
pr_info("setting logging_level(0x%08x)\n", logging_level);
list_for_each_entry(ioc, &mpt3sas_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_get_sas_address - set the sas_address for given device handle
* @handle: device handle
* @sas_address: sas address
*
* Returns 0 success, non-zero when failure
*/
static int
_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u64 *sas_address)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 ioc_status;
*sas_address = 0;
if (handle <= ioc->sas_hba.num_phys) {
*sas_address = ioc->sas_hba.sas_address;
return 0;
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
return -ENXIO;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
*sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
return 0;
}
/* we hit this becuase the given parent handle doesn't exist */
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
return -ENXIO;
/* else error case */
pr_err(MPT3SAS_FMT
"handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n",
ioc->name, handle, ioc_status,
__FILE__, __LINE__, __func__);
return -EIO;
}
/**
* _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 persistent 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 MPT3SAS_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->is_driver_loading)
return;
/* no Bios, return immediately */
if (!ioc->bios_pg3.BiosVersion)
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, pr_info(MPT3SAS_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, pr_info(MPT3SAS_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, pr_info(MPT3SAS_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;
}
}
}
/**
* mpt3sas_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 *
mpt3sas_scsih_sas_device_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
if (sas_device->sas_address == sas_address)
return sas_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
if (sas_device->sas_address == sas_address)
return sas_device;
return NULL;
}
/**
* _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 MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
if (sas_device->handle == handle)
return sas_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
if (sas_device->handle == handle)
return sas_device;
return NULL;
}
/**
* _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 MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
if (!sas_device)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_del(&sas_device->list);
kfree(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_device_remove_by_handle - removing device object by handle
* @ioc: per adapter object
* @handle: device handle
*
* Return nothing.
*/
static void
_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
if (sas_device)
list_del(&sas_device->list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
_scsih_remove_device(ioc, sas_device);
}
/**
* mpt3sas_device_remove_by_sas_address - removing device object by sas address
* @ioc: per adapter object
* @sas_address: device sas_address
*
* Return nothing.
*/
void
mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_address);
if (sas_device)
list_del(&sas_device->list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
_scsih_remove_device(ioc, sas_device);
}
/**
* _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 MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc, pr_info(MPT3SAS_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);
if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
sas_device->sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
/*
* When asyn scanning is enabled, its not possible to remove
* devices while scanning is turned on due to an oops in
* scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
_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 MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc, pr_info(MPT3SAS_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);
_scsih_determine_boot_device(ioc, sas_device, 0);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _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 MPT3SAS_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 MPT3SAS_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 MPT3SAS_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 MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
dewtprintk(ioc, pr_info(MPT3SAS_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
*
*/
static void
_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_del(&raid_device->list);
kfree(raid_device);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* mpt3sas_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 *
mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_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;
}
/**
* mpt3sas_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 *
mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_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 MPT3SAS_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
*
* Returns the smid stored scmd pointer.
*/
static struct scsi_cmnd *
_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
return ioc->scsi_lookup[smid - 1].scmd;
}
/**
* _scsih_scsi_lookup_get_clear - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
*
* Returns the smid stored scmd pointer.
* Then will derefrence the stored scmd pointer.
*/
static inline struct scsi_cmnd *
_scsih_scsi_lookup_get_clear(struct MPT3SAS_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_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 MPT3SAS_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->scsiio_depth; i++) {
if (ioc->scsi_lookup[i].scmd == scmd) {
smid = ioc->scsi_lookup[i].smid;
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 MPT3SAS_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->scsiio_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_scsi_lookup_find_by_lun - search for matching channel:id:lun
* @ioc: per adapter object
* @id: target id
* @lun: lun number
* @channel: channel
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a matching channel:id:lun in the scsi_lookup array,
* returning 1 if found.
*/
static u8
_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
unsigned int lun, int channel)
{
u8 found;
unsigned long flags;
int i;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
found = 0;
for (i = 0 ; i < ioc->scsiio_depth; i++) {
if (ioc->scsi_lookup[i].scmd &&
(ioc->scsi_lookup[i].scmd->device->id == id &&
ioc->scsi_lookup[i].scmd->device->channel == channel &&
ioc->scsi_lookup[i].scmd->device->lun == lun)) {
found = 1;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return found;
}
static void
_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
int max_depth;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
max_depth = shost->can_queue;
/* limit max device queue for SATA to 32 */
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
goto not_sata;
sas_target_priv_data = sas_device_priv_data->sas_target;
if (!sas_target_priv_data)
goto not_sata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
goto not_sata;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_device_priv_data->sas_target->sas_address);
if (sas_device && sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
max_depth = MPT3SAS_SATA_QUEUE_DEPTH;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
not_sata:
if (!sdev->tagged_supported)
max_depth = 1;
if (qdepth > max_depth)
qdepth = max_depth;
scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
}
/**
* _scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
* @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
* (see include/scsi/scsi_host.h for definition)
*
* Returns queue depth.
*/
static int
_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
{
if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
_scsih_adjust_queue_depth(sdev, qdepth);
else if (reason == SCSI_QDEPTH_QFULL)
scsi_track_queue_full(sdev, qdepth);
else
return -EOPNOTSUPP;
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_type - 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 MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_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(*sas_target_priv_data),
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 = MPT3SAS_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 = mpt3sas_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 (test_bit(sas_device->handle, ioc->pd_handles))
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
if (sas_device->fast_path)
sas_target_priv_data->flags |= MPT_TARGET_FASTPATH_IO;
}
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 MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_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 = mpt3sas_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 MPT3SAS_ADAPTER *ioc;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct MPT3SAS_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(*sas_device_priv_data),
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);
}
if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_target_priv_data->sas_address);
if (sas_device && (sas_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
"%s : sas_device->starget set to starget @ %d\n",
__func__, __LINE__);
sas_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
return 0;
}
/**
* _scsih_slave_destroy - device destroy routine
* @sdev: scsi device struct
*
* Returns nothing.
*/
static void
_scsih_slave_destroy(struct scsi_device *sdev)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct _sas_device *sas_device;
unsigned long flags;
if (!sdev->hostdata)
return;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns--;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_target_priv_data->sas_address);
if (sas_device && !sas_target_priv_data->num_luns)
sas_device->starget = NULL;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
kfree(sdev->hostdata);
sdev->hostdata = NULL;
}
/**
* _scsih_display_sata_capabilities - sata capabilities
* @ioc: per adapter object
* @handle: device handle
* @sdev: scsi device struct
*/
static void
_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc,
u16 handle, struct scsi_device *sdev)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u16 flags;
u32 device_info;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
flags = le16_to_cpu(sas_device_pg0.Flags);
device_info = le32_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");
}
/*
* raid transport support -
* Enabled for SLES11 and newer, in older kernels the driver will panic when
* unloading the driver followed by a load - I beleive that the subroutine
* raid_class_release() is not cleaning up properly.
*/
/**
* _scsih_is_raid - return boolean indicating device is raid volume
* @dev the device struct object
*/
static int
_scsih_is_raid(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
}
/**
* _scsih_get_resync - get raid volume resync percent complete
* @dev the device struct object
*/
static void
_scsih_get_resync(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
static struct _raid_device *raid_device;
unsigned long flags;
Mpi2RaidVolPage0_t vol_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 volume_status_flags;
u8 percent_complete;
u16 handle;
percent_complete = 0;
handle = 0;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
sdev->channel);
if (raid_device) {
handle = raid_device->handle;
percent_complete = raid_device->percent_complete;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!handle)
goto out;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
percent_complete = 0;
goto out;
}
volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
if (!(volume_status_flags &
MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
percent_complete = 0;
out:
raid_set_resync(mpt3sas_raid_template, dev, percent_complete);
}
/**
* _scsih_get_state - get raid volume level
* @dev the device struct object
*/
static void
_scsih_get_state(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
static struct _raid_device *raid_device;
unsigned long flags;
Mpi2RaidVolPage0_t vol_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 volstate;
enum raid_state state = RAID_STATE_UNKNOWN;
u16 handle = 0;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
sdev->channel);
if (raid_device)
handle = raid_device->handle;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device)
goto out;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
state = RAID_STATE_RESYNCING;
goto out;
}
switch (vol_pg0.VolumeState) {
case MPI2_RAID_VOL_STATE_OPTIMAL:
case MPI2_RAID_VOL_STATE_ONLINE:
state = RAID_STATE_ACTIVE;
break;
case MPI2_RAID_VOL_STATE_DEGRADED:
state = RAID_STATE_DEGRADED;
break;
case MPI2_RAID_VOL_STATE_FAILED:
case MPI2_RAID_VOL_STATE_MISSING:
state = RAID_STATE_OFFLINE;
break;
}
out:
raid_set_state(mpt3sas_raid_template, dev, state);
}
/**
* _scsih_set_level - set raid level
* @sdev: scsi device struct
* @volume_type: volume type
*/
static void
_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
{
enum raid_level level = RAID_LEVEL_UNKNOWN;
switch (volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
level = RAID_LEVEL_0;
break;
case MPI2_RAID_VOL_TYPE_RAID10:
level = RAID_LEVEL_10;
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
level = RAID_LEVEL_1E;
break;
case MPI2_RAID_VOL_TYPE_RAID1:
level = RAID_LEVEL_1;
break;
}
raid_set_level(mpt3sas_raid_template, &sdev->sdev_gendev, level);
}
/**
* _scsih_get_volume_capabilities - volume capabilities
* @ioc: per adapter object
* @sas_device: the raid_device object
*
* Returns 0 for success, else 1
*/
static int
_scsih_get_volume_capabilities(struct MPT3SAS_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 ((mpt3sas_config_get_number_pds(ioc, raid_device->handle,
&num_pds)) || !num_pds) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
__func__));
return 1;
}
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) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
__func__));
return 1;
}
if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
__func__));
kfree(vol_pg0);
return 1;
}
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 (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
vol_pg0->PhysDisk[0].PhysDiskNum))) {
if (!(mpt3sas_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);
return 0;
}
/**
* _scsih_enable_tlr - setting TLR flags
* @ioc: per adapter object
* @sdev: scsi device struct
*
* Enabling Transaction Layer Retries for tape devices when
* vpd page 0x90 is present
*
*/
static void
_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev)
{
/* only for TAPE */
if (sdev->type != TYPE_TAPE)
return;
if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
return;
sas_enable_tlr(sdev);
sdev_printk(KERN_INFO, sdev, "TLR %s\n",
sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
return;
}
/**
* _scsih_slave_configure - device configure routine.
* @sdev: scsi device struct
*
* 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 MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_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 = "";
u16 handle, volume_handle = 0;
u64 volume_wwid = 0;
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;
handle = sas_target_priv_data->handle;
/* 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, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name, __FILE__,
__LINE__, __func__));
return 1;
}
if (_scsih_get_volume_capabilities(ioc, raid_device)) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name, __FILE__,
__LINE__, __func__));
return 1;
}
/* RAID Queue Depth Support
* IS volume = underlying qdepth of drive type, either
* MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH
* IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH)
*/
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
ds = "SSP";
} else {
qdepth = MPT3SAS_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 = MPT3SAS_RAID_QUEUE_DEPTH;
if (ioc->manu_pg10.OEMIdentifier &&
(le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
MFG10_GF0_R10_DISPLAY) &&
!(raid_device->num_pds % 2))
r_level = "RAID10";
else
r_level = "RAID1E";
break;
case MPI2_RAID_VOL_TYPE_RAID1:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1";
break;
case MPI2_RAID_VOL_TYPE_RAID10:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAID10";
break;
case MPI2_RAID_VOL_TYPE_UNKNOWN:
default:
qdepth = MPT3SAS_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, SCSI_QDEPTH_DEFAULT);
/* raid transport support */
_scsih_set_level(sdev, raid_device->volume_type);
return 0;
}
/* non-raid handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
if (mpt3sas_config_get_volume_handle(ioc, handle,
&volume_handle)) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__));
return 1;
}
if (volume_handle && mpt3sas_config_get_volume_wwid(ioc,
volume_handle, &volume_wwid)) {
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__));
return 1;
}
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_device_priv_data->sas_target->sas_address);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
dfailprintk(ioc, pr_warn(MPT3SAS_FMT
"failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
__func__));
return 1;
}
sas_device->volume_handle = volume_handle;
sas_device->volume_wwid = volume_wwid;
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
ssp_target = 1;
ds = "SSP";
} else {
qdepth = MPT3SAS_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), phy(%d), device_name(0x%016llx)\n",
ds, handle, (unsigned long long)sas_device->sas_address,
sas_device->phy, (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);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!ssp_target)
_scsih_display_sata_capabilities(ioc, handle, sdev);
_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
if (ssp_target) {
sas_read_port_mode_page(sdev);
_scsih_enable_tlr(ioc, 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 MPT3SAS_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;
}
pr_warn(MPT3SAS_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
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: none.
*
* The callback handler when using scsih_issue_tm.
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED)
return 1;
if (ioc->tm_cmds.smid != smid)
return 1;
mpt3sas_base_flush_reply_queues(ioc);
ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
mpi_reply = mpt3sas_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 |= MPT3_CMD_REPLY_VALID;
}
ioc->tm_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->tm_cmds.done);
return 1;
}
/**
* mpt3sas_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
mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_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;
}
}
}
/**
* mpt3sas_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
mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_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;
}
}
}
/**
* mpt3sas_scsih_issue_tm - main routine for sending tm requests
* @ioc: per adapter struct
* @device_handle: device handle
* @channel: the channel assigned by the OS
* @id: the id assigned by the OS
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
* @timeout: timeout in seconds
* @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
* Context: user
*
* A generic API for sending task management requests to firmware.
*
* The callback index is set inside `ioc->tm_cb_idx`.
*
* Return SUCCESS or FAILED.
*/
int
mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
enum mutex_type m_type)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
u16 smid = 0;
u32 ioc_state;
unsigned long timeleft;
struct scsiio_tracker *scsi_lookup = NULL;
int rc;
if (m_type == TM_MUTEX_ON)
mutex_lock(&ioc->tm_cmds.mutex);
if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n",
__func__, ioc->name);
rc = FAILED;
goto err_out;
}
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery) {
pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
rc = FAILED;
goto err_out;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
dhsprintk(ioc, pr_info(MPT3SAS_FMT
"unexpected doorbell active!\n", ioc->name));
rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
rc = (!rc) ? SUCCESS : FAILED;
goto err_out;
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt3sas_base_fault_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
rc = (!rc) ? SUCCESS : FAILED;
goto err_out;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
if (!smid) {
pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
rc = FAILED;
goto err_out;
}
if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
dtmprintk(ioc, pr_info(MPT3SAS_FMT
"sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n",
ioc->name, handle, type, smid_task));
ioc->tm_cmds.status = MPT3_CMD_PENDING;
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->tm_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_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);
mpt3sas_scsih_set_tm_flag(ioc, handle);
init_completion(&ioc->tm_cmds.done);
mpt3sas_base_put_smid_hi_priority(ioc, smid);
timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) {
rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
rc = (!rc) ? SUCCESS : FAILED;
ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
mpt3sas_scsih_clear_tm_flag(ioc, handle);
goto err_out;
}
}
if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
mpi_reply = ioc->tm_cmds.reply;
dtmprintk(ioc, pr_info(MPT3SAS_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);
if (mpi_reply->IOCStatus)
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
}
}
switch (type) {
case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
rc = SUCCESS;
if (scsi_lookup->scmd == NULL)
break;
rc = FAILED;
break;
case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
rc = FAILED;
else
rc = SUCCESS;
break;
case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
rc = FAILED;
else
rc = SUCCESS;
break;
case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
rc = SUCCESS;
break;
default:
rc = FAILED;
break;
}
mpt3sas_scsih_clear_tm_flag(ioc, handle);
ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
if (m_type == TM_MUTEX_ON)
mutex_unlock(&ioc->tm_cmds.mutex);
return rc;
err_out:
if (m_type == TM_MUTEX_ON)
mutex_unlock(&ioc->tm_cmds.mutex);
return rc;
}
/**
* _scsih_tm_display_info - displays info about the device
* @ioc: per adapter struct
* @scmd: pointer to scsi command object
*
* Called by task management callback handlers.
*/
static void
_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
{
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *priv_target = starget->hostdata;
struct _sas_device *sas_device = NULL;
unsigned long flags;
char *device_str = NULL;
if (!priv_target)
return;
device_str = "volume";
scsi_print_command(scmd);
if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
starget_printk(KERN_INFO, starget,
"%s handle(0x%04x), %s wwid(0x%016llx)\n",
device_str, priv_target->handle,
device_str, (unsigned long long)priv_target->sas_address);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
priv_target->sas_address);
if (sas_device) {
if (priv_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
starget_printk(KERN_INFO, starget,
"volume handle(0x%04x), "
"volume wwid(0x%016llx)\n",
sas_device->volume_handle,
(unsigned long long)sas_device->volume_wwid);
}
starget_printk(KERN_INFO, starget,
"handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
sas_device->handle,
(unsigned long long)sas_device->sas_address,
sas_device->phy);
starget_printk(KERN_INFO, starget,
"enclosure_logical_id(0x%016llx), slot(%d)\n",
(unsigned long long)sas_device->enclosure_logical_id,
sas_device->slot);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
/**
* _scsih_abort - eh threads main abort routine
* @scmd: pointer to scsi command object
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_abort(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
u16 smid;
u16 handle;
int r;
sdev_printk(KERN_INFO, scmd->device,
"attempting task abort! scmd(%p)\n", scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
sdev_printk(KERN_INFO, scmd->device,
"device been deleted! scmd(%p)\n", 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;
}
mpt3sas_halt_firmware(ioc);
handle = sas_device_priv_data->sas_target->handle;
r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
scmd->device->id, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, TM_MUTEX_ON);
out:
sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_dev_reset - eh threads main device reset routine
* @scmd: pointer to scsi command object
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_dev_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
u16 handle;
int r;
sdev_printk(KERN_INFO, scmd->device,
"attempting device reset! scmd(%p)\n", scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
sdev_printk(KERN_INFO, scmd->device,
"device been deleted! scmd(%p)\n", 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;
}
r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
scmd->device->id, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, TM_MUTEX_ON);
out:
sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_target_reset - eh threads main target reset routine
* @scmd: pointer to scsi command object
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_target_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
u16 handle;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n",
scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n",
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;
}
r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
30, TM_MUTEX_ON);
out:
starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_host_reset - eh threads main host reset routine
* @scmd: pointer to scsi command object
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_host_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
int r, retval;
pr_info(MPT3SAS_FMT "attempting host reset! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
r = (retval < 0) ? FAILED : SUCCESS;
pr_info(MPT3SAS_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 MPT3SAS_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);
INIT_LIST_HEAD(&fw_event->list);
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 MPT3SAS_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);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* mpt3sas_send_trigger_data_event - send event for processing trigger data
* @ioc: per adapter object
* @event_data: trigger event data
*
* Return nothing.
*/
void
mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
{
struct fw_event_work *fw_event;
if (ioc->is_driver_loading)
return;
fw_event = kzalloc(sizeof(*fw_event) + sizeof(*event_data),
GFP_ATOMIC);
if (!fw_event)
return;
fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
fw_event->ioc = ioc;
memcpy(fw_event->event_data, event_data, sizeof(*event_data));
_scsih_fw_event_add(ioc, fw_event);
}
/**
* _scsih_error_recovery_delete_devices - remove devices not responding
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
if (ioc->is_driver_loading)
return;
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event)
return;
fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
}
/**
* mpt3sas_port_enable_complete - port enable completed (fake event)
* @ioc: per adapter object
*
* Return nothing.
*/
void
mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event)
return;
fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
}
/**
* _scsih_fw_event_cleanup_queue - cleanup event queue
* @ioc: per adapter object
*
* Walk the firmware event queue, either killing timers, or waiting
* for outstanding events to complete
*
* Return nothing.
*/
static void
_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event, *next;
if (list_empty(&ioc->fw_event_list) ||
!ioc->firmware_event_thread || in_interrupt())
return;
list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
if (cancel_delayed_work_sync(&fw_event->delayed_work)) {
_scsih_fw_event_free(ioc, fw_event);
continue;
}
}
}
/**
* _scsih_ublock_io_all_device - unblock every device
* @ioc: per adapter object
*
* change the device state from block to running
*/
static void
_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_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;
sas_device_priv_data->block = 0;
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
"device_running, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle));
scsi_internal_device_unblock(sdev, SDEV_RUNNING);
}
}
/**
* _scsih_ublock_io_device - prepare device to be deleted
* @ioc: per adapter object
* @sas_addr: sas address
*
* unblock then put device in offline state
*/
static void
_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
{
struct MPT3SAS_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->sas_target->sas_address
!= sas_address)
continue;
if (sas_device_priv_data->block) {
sas_device_priv_data->block = 0;
scsi_internal_device_unblock(sdev, SDEV_RUNNING);
}
}
}
/**
* _scsih_block_io_all_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_all_device(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_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;
sas_device_priv_data->block = 1;
scsi_internal_device_block(sdev);
sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle);
}
}
/**
* _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 MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_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->sas_target->handle != handle)
continue;
if (sas_device_priv_data->block)
continue;
sas_device_priv_data->block = 1;
scsi_internal_device_block(sdev);
sdev_printk(KERN_INFO, sdev,
"device_blocked, handle(0x%04x)\n", handle);
}
}
/**
* _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 MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt3sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
list_for_each_entry(mpt3sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device =
mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address);
if (sas_device)
set_bit(sas_device->handle,
ioc->blocking_handles);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
list_for_each_entry(mpt3sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE) {
expander_sibling =
mpt3sas_scsih_expander_find_by_sas_address(
ioc, mpt3sas_port->remote_identify.sas_address);
_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 MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
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_tm_tr_send - send task management request
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt time.
*
* This code is to initiate the device removal handshake protocol
* with controller firmware. This function will issue target reset
* using high priority request queue. It will send a sas iounit
* control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
*
* This is designed to send muliple task management request at the same
* time to the fifo. If the fifo is full, we will append the request,
* and process it in a future completion.
*/
static void
_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
struct _sas_device *sas_device;
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
u64 sas_address = 0;
unsigned long flags;
struct _tr_list *delayed_tr;
u32 ioc_state;
if (ioc->remove_host) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host has been removed: handle(0x%04x)\n",
__func__, ioc->name, handle));
return;
} else if (ioc->pci_error_recovery) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host in pci error recovery: handle(0x%04x)\n",
__func__, ioc->name,
handle));
return;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host is not operational: handle(0x%04x)\n",
__func__, ioc->name,
handle));
return;
}
/* if PD, then return */
if (test_bit(handle, ioc->pd_handles))
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
if (sas_device && sas_device->starget &&
sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
sas_address = sas_device->sas_address;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_target_priv_data) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, handle,
(unsigned long long)sas_address));
_scsih_ublock_io_device(ioc, sas_address);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
return;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"DELAYED:tr:handle(0x%04x), (open)\n",
ioc->name, handle));
return;
}
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
ioc->name, handle, smid,
ioc->tm_tr_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, 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 = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpt3sas_base_put_smid_hi_priority(ioc, smid);
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
}
/**
* _scsih_tm_tr_complete -
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* This is the target reset completion routine.
* This code is part of the code to initiate the device removal
* handshake protocol with controller firmware.
* It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply)
{
u16 handle;
Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Mpi2SCSITaskManagementReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
Mpi2SasIoUnitControlRequest_t *mpi_request;
u16 smid_sas_ctrl;
u32 ioc_state;
if (ioc->remove_host) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host has been removed\n", __func__, ioc->name));
return 1;
} else if (ioc->pci_error_recovery) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host in pci error recovery\n", __func__,
ioc->name));
return 1;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host is not operational\n", __func__, ioc->name));
return 1;
}
if (unlikely(!mpi_reply)) {
pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 1;
}
mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
handle = le16_to_cpu(mpi_request_tm->DevHandle);
if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
dewtprintk(ioc, pr_err(MPT3SAS_FMT
"spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
ioc->name, handle,
le16_to_cpu(mpi_reply->DevHandle), smid));
return 0;
}
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
"loginfo(0x%08x), completed(%d)\n", ioc->name,
handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
if (!smid_sas_ctrl) {
pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
return 1;
}
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
ioc->name, handle, smid_sas_ctrl,
ioc->tm_sas_control_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
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 = mpi_request_tm->DevHandle;
mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl);
return _scsih_check_for_pending_tm(ioc, smid);
}
/**
* _scsih_sas_control_complete - completion routine
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* This is the sas iounit control completion routine.
* This code is part of the code to initiate the device removal
* handshake protocol with controller firmware.
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u8 msix_index, u32 reply)
{
Mpi2SasIoUnitControlReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (likely(mpi_reply)) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"sc_complete:handle(0x%04x), (open) "
"smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo)));
} else {
pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
}
return 1;
}
/**
* _scsih_tm_tr_volume_send - send target reset request for volumes
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt time.
*
* This is designed to send muliple task management request at the same
* time to the fifo. If the fifo is full, we will append the request,
* and process it in a future completion.
*/
static void
_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
struct _tr_list *delayed_tr;
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host reset in progress!\n",
__func__, ioc->name));
return;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
return;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"DELAYED:tr:handle(0x%04x), (open)\n",
ioc->name, handle));
return;
}
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
ioc->name, handle, smid,
ioc->tm_tr_volume_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, 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 = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpt3sas_base_put_smid_hi_priority(ioc, smid);
}
/**
* _scsih_tm_volume_tr_complete - target reset completion
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u8 msix_index, u32 reply)
{
u16 handle;
Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Mpi2SCSITaskManagementReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: host reset in progress!\n",
__func__, ioc->name));
return 1;
}
if (unlikely(!mpi_reply)) {
pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 1;
}
mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
handle = le16_to_cpu(mpi_request_tm->DevHandle);
if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
dewtprintk(ioc, pr_err(MPT3SAS_FMT
"spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
ioc->name, handle,
le16_to_cpu(mpi_reply->DevHandle), smid));
return 0;
}
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
"loginfo(0x%08x), completed(%d)\n", ioc->name,
handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
return _scsih_check_for_pending_tm(ioc, smid);
}
/**
* _scsih_check_for_pending_tm - check for pending task management
* @ioc: per adapter object
* @smid: system request message index
*
* This will check delayed target reset list, and feed the
* next reqeust.
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct _tr_list *delayed_tr;
if (!list_empty(&ioc->delayed_tr_volume_list)) {
delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
struct _tr_list, list);
mpt3sas_base_free_smid(ioc, smid);
_scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
list_del(&delayed_tr->list);
kfree(delayed_tr);
return 0;
}
if (!list_empty(&ioc->delayed_tr_list)) {
delayed_tr = list_entry(ioc->delayed_tr_list.next,
struct _tr_list, list);
mpt3sas_base_free_smid(ioc, smid);
_scsih_tm_tr_send(ioc, delayed_tr->handle);
list_del(&delayed_tr->list);
kfree(delayed_tr);
return 0;
}
return 1;
}
/**
* _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 receives 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 MPT3SAS_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;
int i, reason_code;
u16 handle;
for (i = 0 ; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
_scsih_tm_tr_send(ioc, handle);
}
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) {
/* put expander attached devices into blocking state */
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
expander_handle);
_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
do {
handle = find_first_bit(ioc->blocking_handles,
ioc->facts.MaxDevHandle);
if (handle < ioc->facts.MaxDevHandle)
_scsih_block_io_device(ioc, handle);
} while (test_and_clear_bit(handle, ioc->blocking_handles));
} 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 = (Mpi2EventDataSasTopologyChangeList_t *)
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, pr_info(MPT3SAS_FMT
"setting ignoring flag\n", ioc->name));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_set_volume_delete_flag - setting volume delete flag
* @ioc: per adapter object
* @handle: device handle
*
* This returns nothing.
*/
static void
_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
if (raid_device && raid_device->starget &&
raid_device->starget->hostdata) {
sas_target_priv_data =
raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"setting delete flag: handle(0x%04x), "
"wwid(0x%016llx)\n", ioc->name, handle,
(unsigned long long) raid_device->wwid));
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_set_volume_handle_for_tr - set handle for target reset to volume
* @handle: input handle
* @a: handle for volume a
* @b: handle for volume b
*
* IR firmware only supports two raid volumes. The purpose of this
* routine is to set the volume handle in either a or b. When the given
* input handle is non-zero, or when a and b have not been set before.
*/
static void
_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
{
if (!handle || handle == *a || handle == *b)
return;
if (!*a)
*a = handle;
else if (!*b)
*b = handle;
}
/**
* _scsih_check_ir_config_unhide_events - check for UNHIDE events
* @ioc: per adapter object
* @event_data: the event data payload
* Context: interrupt time.
*
* This routine will send target reset to volume, followed by target
* resets to the PDs. This is called when a PD has been removed, or
* volume has been deleted or removed. When the target reset is sent
* to volume, the PD target resets need to be queued to start upon
* completion of the volume target reset.
*
* Return nothing.
*/
static void
_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
int i;
u16 handle, volume_handle, a, b;
struct _tr_list *delayed_tr;
a = 0;
b = 0;
/* Volume Resets for Deleted or Removed */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
continue;
if (element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
volume_handle = le16_to_cpu(element->VolDevHandle);
_scsih_set_volume_delete_flag(ioc, volume_handle);
_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
}
}
/* Volume Resets for UNHIDE events */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
continue;
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
volume_handle = le16_to_cpu(element->VolDevHandle);
_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
}
}
if (a)
_scsih_tm_tr_volume_send(ioc, a);
if (b)
_scsih_tm_tr_volume_send(ioc, b);
/* PD target resets */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
continue;
handle = le16_to_cpu(element->PhysDiskDevHandle);
volume_handle = le16_to_cpu(element->VolDevHandle);
clear_bit(handle, ioc->pd_handles);
if (!volume_handle)
_scsih_tm_tr_send(ioc, handle);
else if (volume_handle == a || volume_handle == b) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
BUG_ON(!delayed_tr);
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
handle));
} else
_scsih_tm_tr_send(ioc, handle);
}
}
/**
* _scsih_check_volume_delete_events - set delete flag for volumes
* @ioc: per adapter object
* @event_data: the event data payload
* Context: interrupt time.
*
* This will handle the case when the cable connected to entire volume is
* pulled. We will take care of setting the deleted flag so normal IO will
* not be sent.
*
* Return nothing.
*/
static void
_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrVolume_t *event_data)
{
u32 state;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
state = le32_to_cpu(event_data->NewValue);
if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
MPI2_RAID_VOL_STATE_FAILED)
_scsih_set_volume_delete_flag(ioc,
le16_to_cpu(event_data->VolDevHandle));
}
/**
* _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 MPT3SAS_ADAPTER *ioc)
{
struct scsi_cmnd *scmd;
u16 smid;
u16 count = 0;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
if (!scmd)
continue;
count++;
mpt3sas_base_free_smid(ioc, smid);
scsi_dma_unmap(scmd);
if (ioc->pci_error_recovery)
scmd->result = DID_NO_CONNECT << 16;
else
scmd->result = DID_RESET << 16;
scmd->scsi_done(scmd);
}
dtmprintk(ioc, pr_info(MPT3SAS_FMT "completing %d cmds\n",
ioc->name, count));
}
/**
* _scsih_setup_eedp - setup MPI request for EEDP transfer
* @ioc: per adapter object
* @scmd: pointer to scsi command object
* @mpi_request: pointer to the SCSI_IO reqest message frame
*
* Supporting protection 1 and 3.
*
* Returns nothing
*/
static void
_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi2SCSIIORequest_t *mpi_request)
{
u16 eedp_flags;
unsigned char prot_op = scsi_get_prot_op(scmd);
unsigned char prot_type = scsi_get_prot_type(scmd);
Mpi25SCSIIORequest_t *mpi_request_3v =
(Mpi25SCSIIORequest_t *)mpi_request;
if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
return;
if (prot_op == SCSI_PROT_READ_STRIP)
eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
else if (prot_op == SCSI_PROT_WRITE_INSERT)
eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
else
return;
switch (prot_type) {
case SCSI_PROT_DIF_TYPE1:
case SCSI_PROT_DIF_TYPE2:
/*
* enable ref/guard checking
* auto increment ref tag
*/
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
mpi_request->CDB.EEDP32.PrimaryReferenceTag =
cpu_to_be32(scsi_get_lba(scmd));
break;
case SCSI_PROT_DIF_TYPE3:
/*
* enable guard checking
*/
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
break;
}
mpi_request_3v->EEDPBlockSize =
cpu_to_le16(scmd->device->sector_size);
mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
}
/**
* _scsih_eedp_error_handling - return sense code for EEDP errors
* @scmd: pointer to scsi command object
* @ioc_status: ioc status
*
* Returns nothing
*/
static void
_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
{
u8 ascq;
switch (ioc_status) {
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
ascq = 0x01;
break;
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
ascq = 0x02;
break;
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
ascq = 0x03;
break;
default:
ascq = 0x00;
break;
}
scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
ascq);
scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
SAM_STAT_CHECK_CONDITION;
}
/**
* _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_Host *shost, struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
Mpi2SCSIIORequest_t *mpi_request;
u32 mpi_control;
u16 smid;
u16 handle;
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_SCSI)
scsi_print_command(scmd);
#endif
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
if (ioc->pci_error_recovery || ioc->remove_host) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
sas_target_priv_data = sas_device_priv_data->sas_target;
/* invalid device handle */
handle = sas_target_priv_data->handle;
if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
/* host recovery or link resets sent via IOCTLs */
if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
return SCSI_MLQUEUE_HOST_BUSY;
/* device has been deleted */
else if (sas_target_priv_data->deleted) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
/* device busy with task managment */
} else if (sas_target_priv_data->tm_busy ||
sas_device_priv_data->block)
return SCSI_MLQUEUE_DEVICE_BUSY;
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_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
} else
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
scmd->cmd_len != 32)
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
if (!smid) {
pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
_scsih_setup_eedp(ioc, scmd, mpi_request);
if (scmd->cmd_len == 32)
mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
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(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 =
mpt3sas_base_get_sense_buffer_dma(ioc, smid);
mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
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) {
if (ioc->build_sg_scmd(ioc, scmd, smid)) {
mpt3sas_base_free_smid(ioc, smid);
goto out;
}
} else
ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
MPI25_SCSIIO_IOFLAGS_FAST_PATH);
mpt3sas_base_put_smid_fast_path(ioc, smid, handle);
} else
mpt3sas_base_put_smid_scsi_io(ioc, smid, handle);
} else
mpt3sas_base_put_smid_default(ioc, smid);
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_MPT3SAS_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 MPT3SAS_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;
u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
struct _sas_device *sas_device = NULL;
unsigned long flags;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *priv_target = starget->hostdata;
char *device_str = NULL;
if (!priv_target)
return;
device_str = "volume";
if (log_info == 0x31170000)
return;
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;
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
desc_ioc_state = "eedp guard error";
break;
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
desc_ioc_state = "eedp ref tag error";
break;
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
desc_ioc_state = "eedp app tag error";
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);
if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
pr_warn(MPT3SAS_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
device_str, (unsigned long long)priv_target->sas_address);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
priv_target->sas_address);
if (sas_device) {
pr_warn(MPT3SAS_FMT
"\tsas_address(0x%016llx), phy(%d)\n",
ioc->name, (unsigned long long)
sas_device->sas_address, sas_device->phy);
pr_warn(MPT3SAS_FMT
"\tenclosure_logical_id(0x%016llx), slot(%d)\n",
ioc->name, (unsigned long long)
sas_device->enclosure_logical_id, sas_device->slot);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
pr_warn(MPT3SAS_FMT
"\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
ioc->name, le16_to_cpu(mpi_reply->DevHandle),
desc_ioc_state, ioc_status, smid);
pr_warn(MPT3SAS_FMT
"\trequest_len(%d), underflow(%d), resid(%d)\n",
ioc->name, scsi_bufflen(scmd), scmd->underflow,
scsi_get_resid(scmd));
pr_warn(MPT3SAS_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);
pr_warn(MPT3SAS_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);
pr_warn(MPT3SAS_FMT
"\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
ioc->name, data.skey,
data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
}
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[0]);
}
}
#endif
/**
* _scsih_turn_on_fault_led - illuminate Fault LED
* @ioc: per adapter object
* @handle: device handle
* Context: process
*
* Return nothing.
*/
static void
_scsih_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
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 =
cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
mpi_request.DevHandle = cpu_to_le16(handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
return;
}
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc, pr_info(MPT3SAS_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;
}
}
/**
* _scsih_send_event_to_turn_on_fault_led - fire delayed event
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt.
*
* Return nothing.
*/
static void
_scsih_send_event_to_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct fw_event_work *fw_event;
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event)
return;
fw_event->event = MPT3SAS_TURN_ON_FAULT_LED;
fw_event->device_handle = handle;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
}
/**
* _scsih_smart_predicted_fault - process smart errors
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt.
*
* Return nothing.
*/
static void
_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct scsi_target *starget;
struct MPT3SAS_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)
_scsih_send_event_to_turn_on_fault_led(ioc, handle);
/* insert into event log */
sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
sizeof(Mpi2EventDataSasDeviceStatusChange_t);
event_reply = kzalloc(sz, GFP_KERNEL);
if (!event_reply) {
pr_err(MPT3SAS_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);
mpt3sas_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
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when using _scsih_qcmd.
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 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 MPT3SAS_DEVICE *sas_device_priv_data;
u32 response_code = 0;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
if (scmd == NULL)
return 1;
mpi_request = mpt3sas_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;
}
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
/* turning off TLR */
scsi_state = mpi_reply->SCSIState;
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
response_code =
le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
if (!sas_device_priv_data->tlr_snoop_check) {
sas_device_priv_data->tlr_snoop_check++;
if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
sas_device_priv_data->flags &=
~MPT_DEVICE_TLR_ON;
}
xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
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_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 = mpt3sas_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));
mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
}
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_TRANSPORT_DISRUPTED << 16;
goto out;
}
if (log_info == 0x31110630) {
if (scmd->retries > 2) {
scmd->result = DID_NO_CONNECT << 16;
scsi_device_set_state(scmd->device,
SDEV_OFFLINE);
} else {
scmd->result = DID_SOFT_ERROR << 16;
scmd->device->expecting_cc_ua = 1;
}
break;
}
scmd->result = DID_SOFT_ERROR << 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 (response_code ==
MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
(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_EEDP_GUARD_ERROR:
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
_scsih_eedp_error_handling(scmd, ioc_status);
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_MPT3SAS_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);
return 1;
}
/**
* _scsih_sas_host_refresh - refreshing sas host object contents
* @ioc: per adapter object
* 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 MPT3SAS_ADAPTER *ioc)
{
u16 sz;
u16 ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
u16 attached_handle;
u8 link_rate;
dtmprintk(ioc, pr_info(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz)) != 0)
goto out;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
goto out;
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
if (i == 0)
ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
PhyData[0].ControllerDevHandle);
ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
AttachedDevHandle);
if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
attached_handle, i, link_rate);
}
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 MPT3SAS_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;
u8 device_missing_delay;
mpt3sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
if (!ioc->sas_hba.num_phys) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
sas_iounit_pg1, sz))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->io_missing_delay =
sas_iounit_pg1->IODeviceMissingDelay;
device_missing_delay =
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) {
pr_err(MPT3SAS_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 ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
i))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
if (i == 0)
ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
PhyData[0].ControllerDevHandle);
ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
ioc->sas_hba.phy[i].phy_id = i;
mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
phy_pg0, ioc->sas_hba.parent_dev);
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
pr_info(MPT3SAS_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 (!(mpt3sas_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 MPT3SAS_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;
u64 sas_address, sas_address_parent = 0;
int i;
unsigned long flags;
struct _sas_port *mpt3sas_port = NULL;
int rc = 0;
if (!handle)
return -1;
if (ioc->shost_recovery || ioc->pci_error_recovery)
return -1;
if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_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 (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
!= 0) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
if (sas_address_parent != ioc->sas_hba.sas_address) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address_parent);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_expander) {
rc = _scsih_expander_add(ioc, parent_handle);
if (rc != 0)
return rc;
}
}
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
sas_expander = mpt3sas_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) {
pr_err(MPT3SAS_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->sas_address_parent = sas_address_parent;
sas_expander->sas_address = sas_address;
pr_info(MPT3SAS_FMT "expander_add: handle(0x%04x)," \
" parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
handle, 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) {
pr_err(MPT3SAS_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);
mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
sas_address_parent);
if (!mpt3sas_port) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
if ((mpt3sas_transport_add_expander_phy(ioc,
&sas_expander->phy[i], expander_pg1,
sas_expander->parent_dev))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
}
if (sas_expander->enclosure_handle) {
if (!(mpt3sas_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 (mpt3sas_port)
mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_address_parent);
kfree(sas_expander);
return rc;
}
/**
* mpt3sas_expander_remove - removing expander object
* @ioc: per adapter object
* @sas_address: expander sas_address
*
* Return nothing.
*/
void
mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
{
struct _sas_node *sas_expander;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address);
if (sas_expander)
list_del(&sas_expander->list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
_scsih_expander_node_remove(ioc, sas_expander);
}
/**
* _scsih_done - internal SCSI_IO callback handler.
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when sending internal generated SCSI_IO.
* The callback index passed is `ioc->scsih_cb_idx`
*
* Return 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
return 1;
if (ioc->scsih_cmds.smid != smid)
return 1;
ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
if (mpi_reply) {
memcpy(ioc->scsih_cmds.reply, mpi_reply,
mpi_reply->MsgLength*4);
ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
}
ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->scsih_cmds.done);
return 1;
}
#define MPT3_MAX_LUNS (255)
/**
* _scsih_check_access_status - check access flags
* @ioc: per adapter object
* @sas_address: sas address
* @handle: sas device handle
* @access_flags: errors returned during discovery of the device
*
* Return 0 for success, else failure
*/
static u8
_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
u16 handle, u8 access_status)
{
u8 rc = 1;
char *desc = NULL;
switch (access_status) {
case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
rc = 0;
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
desc = "sata capability failed";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
desc = "sata affiliation conflict";
break;
case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
desc = "route not addressable";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
desc = "smp error not addressable";
break;
case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
desc = "device blocked";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
desc = "sata initialization failed";
break;
default:
desc = "unknown";
break;
}
if (!rc)
return 0;
pr_err(MPT3SAS_FMT
"discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
ioc->name, desc, (unsigned long long)sas_address, handle);
return rc;
}
/**
* _scsih_check_device - checking device responsiveness
* @ioc: per adapter object
* @parent_sas_address: sas address of parent expander or sas host
* @handle: attached device handle
* @phy_numberv: phy number
* @link_rate: new link rate
*
* Returns nothing.
*/
static void
_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
struct _sas_device *sas_device;
u32 ioc_status;
unsigned long flags;
u64 sas_address;
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
u32 device_info;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
return;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
return;
/* wide port handling ~ we need only handle device once for the phy that
* is matched in sas device page zero
*/
if (phy_number != sas_device_pg0.PhyNum)
return;
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_address);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
if (unlikely(sas_device->handle != handle)) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget,
"handle changed from(0x%04x) to (0x%04x)!!!\n",
sas_device->handle, handle);
sas_target_priv_data->handle = handle;
sas_device->handle = handle;
}
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
pr_err(MPT3SAS_FMT
"device is not present handle(0x%04x), flags!!!\n",
ioc->name, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
sas_device_pg0.AccessStatus)) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_ublock_io_device(ioc, sas_address);
}
/**
* _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 MPT3SAS_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;
u64 sas_address;
u32 device_info;
unsigned long flags;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
return -1;
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
pr_err(MPT3SAS_FMT "device is not present handle(0x04%x)!!!\n",
ioc->name, handle);
return -1;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
sas_device_pg0.AccessStatus))
return -1;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
return -1;
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
if (!sas_device) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 0;
}
sas_device->handle = handle;
if (_scsih_get_sas_address(ioc,
le16_to_cpu(sas_device_pg0.ParentDevHandle),
&sas_device->sas_address_parent) != 0)
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
sas_device->slot =
le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->phy = sas_device_pg0.PhyNum;
sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
/* get enclosure_logical_id */
if (sas_device->enclosure_handle && !(mpt3sas_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_discovery_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
* @sas_device_delete: the sas_device object
*
* Return nothing.
*/
static void
_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, __func__,
sas_device->handle, (unsigned long long)
sas_device->sas_address));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
_scsih_ublock_io_device(ioc, sas_device->sas_address);
sas_target_priv_data->handle =
MPT3SAS_INVALID_DEVICE_HANDLE;
}
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
pr_info(MPT3SAS_FMT
"removing handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, sas_device->handle,
(unsigned long long) sas_device->sas_address);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, __func__,
sas_device->handle, (unsigned long long)
sas_device->sas_address));
kfree(sas_device);
}
#ifdef CONFIG_SCSI_MPT3SAS_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 MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
char *status_str = NULL;
u8 link_rate, prev_link_rate;
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:
case 0:
status_str = "responding";
break;
case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
pr_info(MPT3SAS_FMT "sas topology change: (%s)\n",
ioc->name, status_str);
pr_info("\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:
status_str = "target add";
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
status_str = "target remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
status_str = "delay target remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
status_str = "link rate change";
break;
case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
status_str = "target responding";
break;
default:
status_str = "unknown";
break;
}
link_rate = event_data->PHY[i].LinkRate >> 4;
prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
" link rate: new(0x%02x), old(0x%02x)\n", phy_number,
handle, status_str, link_rate, prev_link_rate);
}
}
#endif
/**
* _scsih_sas_topology_change_event - handle topology changes
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
*/
static int
_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
int i;
u16 parent_handle, handle;
u16 reason_code;
u8 phy_number, max_phys;
struct _sas_node *sas_expander;
u64 sas_address;
unsigned long flags;
u8 link_rate, prev_link_rate;
Mpi2EventDataSasTopologyChangeList_t *event_data =
(Mpi2EventDataSasTopologyChangeList_t *)
fw_event->event_data;
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_topology_change_event_debug(ioc, event_data);
#endif
if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
return 0;
if (!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
else
_scsih_sas_host_refresh(ioc);
if (fw_event->ignore) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"ignoring expander event\n", ioc->name));
return 0;
}
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 0;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
parent_handle);
if (sas_expander) {
sas_address = sas_expander->sas_address;
max_phys = sas_expander->num_phys;
} else if (parent_handle < ioc->sas_hba.num_phys) {
sas_address = ioc->sas_hba.sas_address;
max_phys = ioc->sas_hba.num_phys;
} else {
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
return 0;
}
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"ignoring expander event\n", ioc->name));
return 0;
}
if (ioc->remove_host || ioc->pci_error_recovery)
return 0;
phy_number = event_data->StartPhyNum + i;
if (phy_number >= max_phys)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if ((event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
continue;
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
link_rate = event_data->PHY[i].LinkRate >> 4;
prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
if (ioc->shost_recovery)
break;
if (link_rate == prev_link_rate)
break;
mpt3sas_transport_update_links(ioc, sas_address,
handle, phy_number, link_rate);
if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
break;
_scsih_check_device(ioc, sas_address, handle,
phy_number, link_rate);
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
if (ioc->shost_recovery)
break;
mpt3sas_transport_update_links(ioc, sas_address,
handle, phy_number, link_rate);
_scsih_add_device(ioc, handle, phy_number, 0);
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
_scsih_device_remove_by_handle(ioc, handle);
break;
}
}
/* handle expander removal */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
sas_expander)
mpt3sas_expander_remove(ioc, sas_address);
return 0;
}
#ifdef CONFIG_SCSI_MPT3SAS_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 MPT3SAS_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;
case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
reason_str = "expander reduced functionality";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
reason_str = "expander reduced functionality complete";
break;
default:
reason_str = "unknown reason";
break;
}
pr_info(MPT3SAS_FMT "device status change: (%s)\n"
"\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
(unsigned long long)le64_to_cpu(event_data->SASAddress),
le16_to_cpu(event_data->TaskTag));
if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
pr_info(MPT3SAS_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
event_data->ASC, event_data->ASCQ);
pr_info("\n");
}
#endif
/**
* _scsih_sas_device_status_change_event - handle device status change
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct MPT3SAS_TARGET *target_priv_data;
struct _sas_device *sas_device;
u64 sas_address;
unsigned long flags;
Mpi2EventDataSasDeviceStatusChange_t *event_data =
(Mpi2EventDataSasDeviceStatusChange_t *)
fw_event->event_data;
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_device_status_change_event_debug(ioc,
event_data);
#endif
/* In MPI Revision K (0xC), the internal device reset complete was
* implemented, so avoid setting tm_busy flag for older firmware.
*/
if ((ioc->facts.HeaderVersion >> 8) < 0xC)
return;
if (event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(event_data->SASAddress);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
sas_address);
if (!sas_device || !sas_device->starget) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
target_priv_data = sas_device->starget->hostdata;
if (!target_priv_data) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
if (event_data->ReasonCode ==
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
#ifdef CONFIG_SCSI_MPT3SAS_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 MPT3SAS_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;
}
pr_info(MPT3SAS_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
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
(Mpi2EventDataSasEnclDevStatusChange_t *)
fw_event->event_data);
#endif
}
/**
* _scsih_sas_broadcast_primitive_event - handle broadcast events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct scsi_cmnd *scmd;
struct scsi_device *sdev;
u16 smid, handle;
u32 lun;
struct MPT3SAS_DEVICE *sas_device_priv_data;
u32 termination_count;
u32 query_count;
Mpi2SCSITaskManagementReply_t *mpi_reply;
Mpi2EventDataSasBroadcastPrimitive_t *event_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
fw_event->event_data;
u16 ioc_status;
unsigned long flags;
int r;
u8 max_retries = 0;
u8 task_abort_retries;
mutex_lock(&ioc->tm_cmds.mutex);
pr_info(MPT3SAS_FMT
"%s: enter: phy number(%d), width(%d)\n",
ioc->name, __func__, event_data->PhyNum,
event_data->PortWidth);
_scsih_block_io_all_device(ioc);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
mpi_reply = ioc->tm_cmds.reply;
broadcast_aen_retry:
/* sanity checks for retrying this loop */
if (max_retries++ == 5) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: giving up\n",
ioc->name, __func__));
goto out;
} else if (max_retries > 1)
dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: %d retry\n",
ioc->name, __func__, max_retries - 1));
termination_count = 0;
query_count = 0;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
if (ioc->shost_recovery)
goto out;
scmd = _scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
sdev = scmd->device;
sas_device_priv_data = sdev->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++;
if (ioc->shost_recovery)
goto out;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30,
TM_MUTEX_OFF);
if (r == FAILED) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: FAILED when sending "
"QUERY_TASK: scmd(%p)\n", scmd);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
& MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
sdev_printk(KERN_WARNING, sdev,
"query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n",
ioc_status, scmd);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
/* see if IO is still owned by IOC and target */
if (mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
continue;
}
task_abort_retries = 0;
tm_retry:
if (task_abort_retries++ == 60) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: ABORT_TASK: giving up\n", ioc->name,
__func__));
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
if (ioc->shost_recovery)
goto out_no_lock;
r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
TM_MUTEX_OFF);
if (r == FAILED) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
"scmd(%p)\n", scmd);
goto tm_retry;
}
if (task_abort_retries > 1)
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
" scmd(%p)\n",
task_abort_retries - 1, scmd);
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
}
if (ioc->broadcast_aen_pending) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: loop back due to pending AEN\n",
ioc->name, __func__));
ioc->broadcast_aen_pending = 0;
goto broadcast_aen_retry;
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
out_no_lock:
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s - exit, query_count = %d termination_count = %d\n",
ioc->name, __func__, query_count, termination_count));
ioc->broadcast_aen_busy = 0;
if (!ioc->shost_recovery)
_scsih_ublock_io_all_device(ioc);
mutex_unlock(&ioc->tm_cmds.mutex);
}
/**
* _scsih_sas_discovery_event - handle discovery events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventDataSasDiscovery_t *event_data =
(Mpi2EventDataSasDiscovery_t *) fw_event->event_data;
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
pr_info(MPT3SAS_FMT "discovery event: (%s)", ioc->name,
(event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
"start" : "stop");
if (event_data->DiscoveryStatus)
pr_info("discovery_status(0x%08x)",
le32_to_cpu(event_data->DiscoveryStatus));
pr_info("\n");
}
#endif
if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
!ioc->sas_hba.num_phys) {
if (disable_discovery > 0 && ioc->shost_recovery) {
/* Wait for the reset to complete */
while (ioc->shost_recovery)
ssleep(1);
}
_scsih_sas_host_add(ioc);
}
}
/**
* _scsih_ir_fastpath - turn on fastpath for IR physdisk
* @ioc: per adapter object
* @handle: device handle for physical disk
* @phys_disk_num: physical disk number
*
* Return 0 for success, else failure.
*/
static int
_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
{
Mpi2RaidActionRequest_t *mpi_request;
Mpi2RaidActionReply_t *mpi_reply;
u16 smid;
u8 issue_reset = 0;
int rc = 0;
u16 ioc_status;
u32 log_info;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
ioc->name, __func__);
rc = -EAGAIN;
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
rc = -EAGAIN;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
mpi_request->PhysDiskNum = phys_disk_num;
dewtprintk(ioc, pr_info(MPT3SAS_FMT "IR RAID_ACTION: turning fast "\
"path on for handle(0x%04x), phys_disk_num (0x%02x)\n", ioc->name,
handle, phys_disk_num));
init_completion(&ioc->scsih_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
if (!(ioc->scsih_cmds.status & MPT3_CMD_RESET))
issue_reset = 1;
rc = -EFAULT;
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
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;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"IR RAID_ACTION: failed: ioc_status(0x%04x), "
"loginfo(0x%08x)!!!\n", ioc->name, ioc_status,
log_info));
rc = -EFAULT;
} else
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"IR RAID_ACTION: completed successfully\n",
ioc->name));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
if (issue_reset)
mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
return rc;
}
/**
* _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_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 MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
unsigned long flags;
u64 wwid;
u16 handle = le16_to_cpu(element->VolDevHandle);
int rc;
mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_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_discovery_to_complete) {
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
_scsih_determine_boot_device(ioc, raid_device, 1);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
}
/**
* _scsih_sas_volume_delete - delete volume
* @ioc: per adapter object
* @handle: volume device handle
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device;
unsigned long flags;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget = NULL;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
if (raid_device) {
if (raid_device->starget) {
starget = raid_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->deleted = 1;
}
pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
ioc->name, raid_device->handle,
(unsigned long long) raid_device->wwid);
list_del(&raid_device->list);
kfree(raid_device);
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (starget)
scsi_remove_target(&starget->dev);
}
/**
* _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 MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
struct scsi_target *starget = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data;
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);
if (sas_device) {
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
clear_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->flags &=
~MPT_TARGET_FLAGS_RAID_COMPONENT;
}
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* exposing raid component */
if (starget)
starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
}
/**
* _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 MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
struct scsi_target *starget = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
u16 volume_handle = 0;
u64 volume_wwid = 0;
mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
if (volume_handle)
mpt3sas_config_get_volume_wwid(ioc, volume_handle,
&volume_wwid);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
if (sas_device) {
set_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
sas_device->volume_handle = volume_handle;
sas_device->volume_wwid = volume_wwid;
}
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* hiding raid component */
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
if (starget)
starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
}
/**
* _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 MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
_scsih_device_remove_by_handle(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 MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u64 sas_address;
u16 parent_handle;
set_bit(handle, ioc->pd_handles);
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) {
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
return;
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
_scsih_add_device(ioc, handle, 0, 1);
}
#ifdef CONFIG_SCSI_MPT3SAS_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 MPT3SAS_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];
pr_info(MPT3SAS_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;
}
pr_info("\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
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventIrConfigElement_t *element;
int i;
u8 foreign_config;
Mpi2EventDataIrConfigChangeList_t *event_data =
(Mpi2EventDataIrConfigChangeList_t *)
fw_event->event_data;
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_config_change_event_debug(ioc, event_data);
#endif
foreign_config = (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
if (ioc->shost_recovery) {
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
_scsih_ir_fastpath(ioc,
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
return;
}
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:
if (!foreign_config)
_scsih_sas_volume_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
if (!foreign_config)
_scsih_sas_volume_delete(ioc,
le16_to_cpu(element->VolDevHandle));
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
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
u64 wwid;
unsigned long flags;
struct _raid_device *raid_device;
u16 handle;
u32 state;
int rc;
Mpi2EventDataIrVolume_t *event_data =
(Mpi2EventDataIrVolume_t *) fw_event->event_data;
if (ioc->shost_recovery)
return;
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, pr_info(MPT3SAS_FMT
"%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
ioc->name, __func__, handle,
le32_to_cpu(event_data->PreviousValue), state));
switch (state) {
case MPI2_RAID_VOL_STATE_MISSING:
case MPI2_RAID_VOL_STATE_FAILED:
_scsih_sas_volume_delete(ioc, handle);
break;
case MPI2_RAID_VOL_STATE_ONLINE:
case MPI2_RAID_VOL_STATE_DEGRADED:
case MPI2_RAID_VOL_STATE_OPTIMAL:
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)
break;
mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_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
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
u16 handle, parent_handle;
u32 state;
struct _sas_device *sas_device;
unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
Mpi2EventDataIrPhysicalDisk_t *event_data =
(Mpi2EventDataIrPhysicalDisk_t *) fw_event->event_data;
u64 sas_address;
if (ioc->shost_recovery)
return;
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, pr_info(MPT3SAS_FMT
"%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
ioc->name, __func__, handle,
le32_to_cpu(event_data->PreviousValue), state));
switch (state) {
case MPI2_RAID_PD_STATE_ONLINE:
case MPI2_RAID_PD_STATE_DEGRADED:
case MPI2_RAID_PD_STATE_REBUILDING:
case MPI2_RAID_PD_STATE_OPTIMAL:
case MPI2_RAID_PD_STATE_HOT_SPARE:
set_bit(handle, ioc->pd_handles);
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;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle))) {
pr_err(MPT3SAS_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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
_scsih_add_device(ioc, handle, 0, 1);
break;
case MPI2_RAID_PD_STATE_OFFLINE:
case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
default:
break;
}
}
#ifdef CONFIG_SCSI_MPT3SAS_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 MPT3SAS_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;
case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
reason_str = "background init";
break;
case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
reason_str = "make data consistent";
break;
}
if (!reason_str)
return;
pr_info(MPT3SAS_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
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventDataIrOperationStatus_t *event_data =
(Mpi2EventDataIrOperationStatus_t *)
fw_event->event_data;
static struct _raid_device *raid_device;
unsigned long flags;
u16 handle;
#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_operation_status_event_debug(ioc,
event_data);
#endif
/* code added for raid transport support */
if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
handle = le16_to_cpu(event_data->VolDevHandle);
raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
if (raid_device)
raid_device->percent_complete =
event_data->PercentComplete;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
}
/**
* _scsih_prep_device_scan - initialize parameters prior to device scan
* @ioc: per adapter object
*
* Set the deleted flag prior to device scan. If the device is found during
* the scan, then we clear the deleted flag.
*/
static void
_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_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 && sas_device_priv_data->sas_target)
sas_device_priv_data->sas_target->deleted = 1;
}
}
/**
* _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 _scsih_remove_unresponsive_sas_devices.
*
* Return nothing.
*/
static void
_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
u16 slot, u16 handle)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
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->responding = 1;
starget = sas_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->tm_busy = 0;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
if (starget)
starget_printk(KERN_INFO, 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;
pr_info("\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
sas_device->handle = handle;
if (sas_target_priv_data)
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 MPT3SAS_ADAPTER *ioc)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u32 device_info;
pr_info(MPT3SAS_FMT "search for end-devices: start\n", ioc->name);
if (list_empty(&ioc->sas_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_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_SUCCESS)
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;
_scsih_mark_responding_sas_device(ioc,
le64_to_cpu(sas_device_pg0.SASAddress),
le16_to_cpu(sas_device_pg0.Slot), handle);
}
out:
pr_info(MPT3SAS_FMT "search for end-devices: complete\n",
ioc->name);
}
/**
* _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 _scsih_remove_unresponsive_raid_devices.
*
* Return nothing.
*/
static void
_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
u16 handle)
{
struct MPT3SAS_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) {
starget = raid_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
raid_device->responding = 1;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
starget_printk(KERN_INFO, raid_device->starget,
"handle(0x%04x), wwid(0x%016llx)\n", handle,
(unsigned long long)raid_device->wwid);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
if (raid_device->handle == handle) {
spin_unlock_irqrestore(&ioc->raid_device_lock,
flags);
return;
}
pr_info("\thandle changed from(0x%04x)!!!\n",
raid_device->handle);
raid_device->handle = handle;
if (sas_target_priv_data)
sas_target_priv_data->handle = handle;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return;
}
}
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 MPT3SAS_ADAPTER *ioc)
{
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u8 phys_disk_num;
if (!ioc->ir_firmware)
return;
pr_info(MPT3SAS_FMT "search for raid volumes: start\n",
ioc->name);
if (list_empty(&ioc->raid_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_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_SUCCESS)
break;
handle = le16_to_cpu(volume_pg1.DevHandle);
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
_scsih_mark_responding_raid_device(ioc,
le64_to_cpu(volume_pg1.WWID), handle);
}
/* refresh the pd_handles */
phys_disk_num = 0xFF;
memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
phys_disk_num))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
set_bit(handle, ioc->pd_handles);
}
out:
pr_info(MPT3SAS_FMT "search for responding raid volumes: complete\n",
ioc->name);
}
/**
* _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 _scsih_remove_unresponsive_expanders.
*
* Return nothing.
*/
static void
_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
u16 handle)
{
struct _sas_node *sas_expander;
unsigned long flags;
int i;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
sas_expander->responding = 1;
if (sas_expander->handle == handle)
goto out;
pr_info("\texpander(0x%016llx): handle changed" \
" from(0x%04x) to (0x%04x)!!!\n",
(unsigned long long)sas_expander->sas_address,
sas_expander->handle, handle);
sas_expander->handle = handle;
for (i = 0 ; i < sas_expander->num_phys ; i++)
sas_expander->phy[i].handle = handle;
goto out;
}
out:
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _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 MPT3SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u64 sas_address;
u16 handle;
pr_info(MPT3SAS_FMT "search for expanders: start\n", ioc->name);
if (list_empty(&ioc->sas_expander_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_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_SUCCESS)
break;
handle = le16_to_cpu(expander_pg0.DevHandle);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
pr_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);
}
out:
pr_info(MPT3SAS_FMT "search for expanders: complete\n", ioc->name);
}
/**
* _scsih_remove_unresponding_sas_devices - removing unresponding devices
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_remove_unresponding_sas_devices(struct MPT3SAS_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;
struct list_head tmp_list;
unsigned long flags;
pr_info(MPT3SAS_FMT "removing unresponding devices: start\n",
ioc->name);
/* removing unresponding end devices */
pr_info(MPT3SAS_FMT "removing unresponding devices: end-devices\n",
ioc->name);
list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_list, list) {
if (!sas_device->responding)
mpt3sas_device_remove_by_sas_address(ioc,
sas_device->sas_address);
else
sas_device->responding = 0;
}
/* removing unresponding volumes */
if (ioc->ir_firmware) {
pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n",
ioc->name);
list_for_each_entry_safe(raid_device, raid_device_next,
&ioc->raid_device_list, list) {
if (!raid_device->responding)
_scsih_sas_volume_delete(ioc,
raid_device->handle);
else
raid_device->responding = 0;
}
}
/* removing unresponding expanders */
pr_info(MPT3SAS_FMT "removing unresponding devices: expanders\n",
ioc->name);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
INIT_LIST_HEAD(&tmp_list);
list_for_each_entry_safe(sas_expander, sas_expander_next,
&ioc->sas_expander_list, list) {
if (!sas_expander->responding)
list_move_tail(&sas_expander->list, &tmp_list);
else
sas_expander->responding = 0;
}
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
list) {
list_del(&sas_expander->list);
_scsih_expander_node_remove(ioc, sas_expander);
}
pr_info(MPT3SAS_FMT "removing unresponding devices: complete\n",
ioc->name);
/* unblock devices */
_scsih_ublock_io_all_device(ioc);
}
static void
_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander, u16 handle)
{
Mpi2ExpanderPage1_t expander_pg1;
Mpi2ConfigReply_t mpi_reply;
int i;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
le16_to_cpu(expander_pg1.AttachedDevHandle), i,
expander_pg1.NegotiatedLinkRate >> 4);
}
}
/**
* _scsih_scan_for_devices_after_reset - scan for devices after host reset
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2EventIrConfigElement_t element;
Mpi2ConfigReply_t mpi_reply;
u8 phys_disk_num;
u16 ioc_status;
u16 handle, parent_handle;
u64 sas_address;
struct _sas_device *sas_device;
struct _sas_node *expander_device;
static struct _raid_device *raid_device;
u8 retry_count;
unsigned long flags;
pr_info(MPT3SAS_FMT "scan devices: start\n", ioc->name);
_scsih_sas_host_refresh(ioc);
pr_info(MPT3SAS_FMT "\tscan devices: expanders start\n", ioc->name);
/* expanders */
handle = 0xFFFF;
while (!(mpt3sas_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_SUCCESS) {
pr_info(MPT3SAS_FMT "\tbreak from expander scan: " \
"ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(expander_pg0.DevHandle);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
expander_device = mpt3sas_scsih_expander_find_by_sas_address(
ioc, le64_to_cpu(expander_pg0.SASAddress));
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (expander_device)
_scsih_refresh_expander_links(ioc, expander_device,
handle);
else {
pr_info(MPT3SAS_FMT "\tBEFORE adding expander: " \
"handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
handle, (unsigned long long)
le64_to_cpu(expander_pg0.SASAddress));
_scsih_expander_add(ioc, handle);
pr_info(MPT3SAS_FMT "\tAFTER adding expander: " \
"handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
handle, (unsigned long long)
le64_to_cpu(expander_pg0.SASAddress));
}
}
pr_info(MPT3SAS_FMT "\tscan devices: expanders complete\n",
ioc->name);
if (!ioc->ir_firmware)
goto skip_to_sas;
pr_info(MPT3SAS_FMT "\tscan devices: phys disk start\n", ioc->name);
/* phys disk */
phys_disk_num = 0xFF;
while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
phys_disk_num))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
pr_info(MPT3SAS_FMT "\tbreak from phys disk scan: "\
"ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
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)
continue;
if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle) != 0)
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
pr_info(MPT3SAS_FMT "\tbreak from phys disk scan " \
"ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle,
&sas_address)) {
pr_info(MPT3SAS_FMT "\tBEFORE adding phys disk: " \
" handle (0x%04x), sas_addr(0x%016llx)\n",
ioc->name, handle, (unsigned long long)
le64_to_cpu(sas_device_pg0.SASAddress));
mpt3sas_transport_update_links(ioc, sas_address,
handle, sas_device_pg0.PhyNum,
MPI2_SAS_NEG_LINK_RATE_1_5);
set_bit(handle, ioc->pd_handles);
retry_count = 0;
/* This will retry adding the end device.
* _scsih_add_device() will decide on retries and
* return "1" when it should be retried
*/
while (_scsih_add_device(ioc, handle, retry_count++,
1)) {
ssleep(1);
}
pr_info(MPT3SAS_FMT "\tAFTER adding phys disk: " \
" handle (0x%04x), sas_addr(0x%016llx)\n",
ioc->name, handle, (unsigned long long)
le64_to_cpu(sas_device_pg0.SASAddress));
}
}
pr_info(MPT3SAS_FMT "\tscan devices: phys disk complete\n",
ioc->name);
pr_info(MPT3SAS_FMT "\tscan devices: volumes start\n", ioc->name);
/* volumes */
handle = 0xFFFF;
while (!(mpt3sas_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_SUCCESS) {
pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
"ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(volume_pg1.DevHandle);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc,
le64_to_cpu(volume_pg1.WWID));
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
continue;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
"ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
element.VolDevHandle = volume_pg1.DevHandle;
pr_info(MPT3SAS_FMT
"\tBEFORE adding volume: handle (0x%04x)\n",
ioc->name, volume_pg1.DevHandle);
_scsih_sas_volume_add(ioc, &element);
pr_info(MPT3SAS_FMT
"\tAFTER adding volume: handle (0x%04x)\n",
ioc->name, volume_pg1.DevHandle);
}
}
pr_info(MPT3SAS_FMT "\tscan devices: volumes complete\n",
ioc->name);
skip_to_sas:
pr_info(MPT3SAS_FMT "\tscan devices: end devices start\n",
ioc->name);
/* sas devices */
handle = 0xFFFF;
while (!(mpt3sas_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_SUCCESS) {
pr_info(MPT3SAS_FMT "\tbreak from end device scan:"\
" ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(sas_device_pg0.DevHandle);
if (!(_scsih_is_end_device(
le32_to_cpu(sas_device_pg0.DeviceInfo))))
continue;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
le64_to_cpu(sas_device_pg0.SASAddress));
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
continue;
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
pr_info(MPT3SAS_FMT "\tBEFORE adding end device: " \
"handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
handle, (unsigned long long)
le64_to_cpu(sas_device_pg0.SASAddress));
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
retry_count = 0;
/* This will retry adding the end device.
* _scsih_add_device() will decide on retries and
* return "1" when it should be retried
*/
while (_scsih_add_device(ioc, handle, retry_count++,
0)) {
ssleep(1);
}
pr_info(MPT3SAS_FMT "\tAFTER adding end device: " \
"handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
handle, (unsigned long long)
le64_to_cpu(sas_device_pg0.SASAddress));
}
}
pr_info(MPT3SAS_FMT "\tscan devices: end devices complete\n",
ioc->name);
pr_info(MPT3SAS_FMT "scan devices: complete\n", ioc->name);
}
/**
* mpt3sas_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 MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
* MPT3_IOC_DONE_RESET
*
* Return nothing.
*/
void
mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
{
switch (reset_phase) {
case MPT3_IOC_PRE_RESET:
dtmprintk(ioc, pr_info(MPT3SAS_FMT
"%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
break;
case MPT3_IOC_AFTER_RESET:
dtmprintk(ioc, pr_info(MPT3SAS_FMT
"%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
ioc->scsih_cmds.status |= MPT3_CMD_RESET;
mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
complete(&ioc->scsih_cmds.done);
}
if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
ioc->tm_cmds.status |= MPT3_CMD_RESET;
mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
complete(&ioc->tm_cmds.done);
}
_scsih_fw_event_cleanup_queue(ioc);
_scsih_flush_running_cmds(ioc);
break;
case MPT3_IOC_DONE_RESET:
dtmprintk(ioc, pr_info(MPT3SAS_FMT
"%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
!ioc->sas_hba.num_phys)) {
_scsih_prep_device_scan(ioc);
_scsih_search_responding_sas_devices(ioc);
_scsih_search_responding_raid_devices(ioc);
_scsih_search_responding_expanders(ioc);
_scsih_error_recovery_delete_devices(ioc);
}
break;
}
}
/**
* _mpt3sas_fw_work - delayed task for processing firmware events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
/* the queue is being flushed so ignore this event */
if (ioc->remove_host ||
ioc->pci_error_recovery) {
_scsih_fw_event_free(ioc, fw_event);
return;
}
switch (fw_event->event) {
case MPT3SAS_PROCESS_TRIGGER_DIAG:
mpt3sas_process_trigger_data(ioc,
(struct SL_WH_TRIGGERS_EVENT_DATA_T *)
fw_event->event_data);
break;
case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
ssleep(1);
_scsih_remove_unresponding_sas_devices(ioc);
_scsih_scan_for_devices_after_reset(ioc);
break;
case MPT3SAS_PORT_ENABLE_COMPLETE:
ioc->start_scan = 0;
if (missing_delay[0] != -1 && missing_delay[1] != -1)
mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
missing_delay[1]);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"port enable: complete from worker thread\n",
ioc->name));
break;
case MPT3SAS_TURN_ON_FAULT_LED:
_scsih_turn_on_fault_led(ioc, fw_event->device_handle);
break;
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_sas_topology_change_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
_scsih_sas_device_status_change_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_DISCOVERY:
_scsih_sas_discovery_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
_scsih_sas_broadcast_primitive_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
_scsih_sas_enclosure_dev_status_change_event(ioc,
fw_event);
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_sas_ir_config_change_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_sas_ir_volume_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_PHYSICAL_DISK:
_scsih_sas_ir_physical_disk_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
_scsih_sas_ir_operation_status_event(ioc, fw_event);
break;
}
_scsih_fw_event_free(ioc, fw_event);
}
/**
* _firmware_event_work
* @ioc: per adapter object
* @work: The fw_event_work object
* Context: user.
*
* wrappers for the work thread handling firmware events
*
* 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);
_mpt3sas_fw_work(fw_event->ioc, fw_event);
}
/**
* mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
* @ioc: per adapter object
* @msix_index: MSIX table index supplied by the OS
* @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 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
u8
mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
u32 reply)
{
struct fw_event_work *fw_event;
Mpi2EventNotificationReply_t *mpi_reply;
u16 event;
u16 sz;
/* events turned off due to host reset or driver unloading */
if (ioc->remove_host || ioc->pci_error_recovery)
return 1;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (unlikely(!mpi_reply)) {
pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 1;
}
event = le16_to_cpu(mpi_reply->Event);
if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
mpt3sas_trigger_event(ioc, event, 0);
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)
return 1;
if (ioc->broadcast_aen_busy) {
ioc->broadcast_aen_pending++;
return 1;
} else
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_IR_CONFIGURATION_CHANGE_LIST:
_scsih_check_ir_config_unhide_events(ioc,
(Mpi2EventDataIrConfigChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_check_volume_delete_events(ioc,
(Mpi2EventDataIrVolume_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_PHYSICAL_DISK:
break;
default: /* ignore the rest */
return 1;
}
sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC);
if (!fw_event) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 1;
}
memcpy(fw_event->event_data, mpi_reply->EventData, sz);
fw_event->ioc = ioc;
fw_event->VF_ID = mpi_reply->VF_ID;
fw_event->VP_ID = mpi_reply->VP_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
return 1;
}
/* shost template */
static struct scsi_host_template scsih_driver_template = {
.module = THIS_MODULE,
.name = "Fusion MPT SAS Host",
.proc_name = MPT3SAS_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,
.scan_finished = _scsih_scan_finished,
.scan_start = _scsih_scan_start,
.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_target_reset_handler = _scsih_target_reset,
.eh_host_reset_handler = _scsih_host_reset,
.bios_param = _scsih_bios_param,
.can_queue = 1,
.this_id = -1,
.sg_tablesize = MPT3SAS_SG_DEPTH,
.max_sectors = 32767,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mpt3sas_host_attrs,
.sdev_attrs = mpt3sas_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 MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt3sas_port, *next;
/* remove sibling ports attached to this expander */
list_for_each_entry_safe(mpt3sas_port, next,
&sas_expander->sas_port_list, port_list) {
if (ioc->shost_recovery)
return;
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpt3sas_device_remove_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address);
else if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpt3sas_expander_remove(ioc,
mpt3sas_port->remote_identify.sas_address);
}
mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_expander->sas_address_parent);
pr_info(MPT3SAS_FMT
"expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name,
sas_expander->handle, (unsigned long long)
sas_expander->sas_address);
kfree(sas_expander->phy);
kfree(sas_expander);
}
/**
* _scsih_ir_shutdown - IR shutdown notification
* @ioc: per adapter object
*
* Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
* the host system is shutting down.
*
* Return nothing.
*/
static void
_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2RaidActionRequest_t *mpi_request;
Mpi2RaidActionReply_t *mpi_reply;
u16 smid;
/* is IR firmware build loaded ? */
if (!ioc->ir_firmware)
return;
/* are there any volumes ? */
if (list_empty(&ioc->raid_device_list))
return;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
ioc->name, __func__);
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
pr_info(MPT3SAS_FMT "IR shutdown (sending)\n", ioc->name);
init_completion(&ioc->scsih_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
pr_info(MPT3SAS_FMT
"IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
}
/**
* _scsih_remove - detach and remove add host
* @pdev: PCI device struct
*
* Routine called when unloading the driver.
* Return nothing.
*/
static void _scsih_remove(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct _sas_port *mpt3sas_port, *next_port;
struct _raid_device *raid_device, *next;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct workqueue_struct *wq;
unsigned long flags;
ioc->remove_host = 1;
_scsih_fw_event_cleanup_queue(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);
/* release all the volumes */
_scsih_ir_shutdown(ioc);
list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
list) {
if (raid_device->starget) {
sas_target_priv_data =
raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
scsi_remove_target(&raid_device->starget->dev);
}
pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
ioc->name, raid_device->handle,
(unsigned long long) raid_device->wwid);
_scsih_raid_device_remove(ioc, raid_device);
}
/* free ports attached to the sas_host */
list_for_each_entry_safe(mpt3sas_port, next_port,
&ioc->sas_hba.sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpt3sas_device_remove_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address);
else if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpt3sas_expander_remove(ioc,
mpt3sas_port->remote_identify.sas_address);
}
/* 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);
scsi_remove_host(shost);
mpt3sas_base_detach(ioc);
list_del(&ioc->list);
scsi_host_put(shost);
}
/**
* _scsih_shutdown - routine call during system shutdown
* @pdev: PCI device struct
*
* Return nothing.
*/
static void
_scsih_shutdown(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct workqueue_struct *wq;
unsigned long flags;
ioc->remove_host = 1;
_scsih_fw_event_cleanup_queue(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);
_scsih_ir_shutdown(ioc);
mpt3sas_base_detach(ioc);
}
/**
* _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 MPT3SAS_ADAPTER *ioc)
{
u8 is_raid;
void *device;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
u16 handle;
u64 sas_address_parent;
u64 sas_address;
unsigned long flags;
int rc;
/* no Bios, return immediately */
if (!ioc->bios_pg3.BiosVersion)
return;
device = NULL;
is_raid = 0;
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 {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = device;
handle = sas_device->handle;
sas_address_parent = sas_device->sas_address_parent;
sas_address = sas_device->sas_address;
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!mpt3sas_transport_port_add(ioc, handle,
sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_address,
sas_address_parent);
_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 MPT3SAS_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 sas devices to sas transport
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *next;
unsigned long flags;
/* SAS Device List */
list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
list) {
if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
sas_device->sas_address_parent)) {
list_del(&sas_device->list);
kfree(sas_device);
continue;
} else if (!sas_device->starget) {
/*
* When asyn scanning is enabled, its not possible to
* remove devices while scanning is turned on due to an
* oops in scsi_sysfs_add_sdev()->add_device()->
* sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
list_del(&sas_device->list);
kfree(sas_device);
continue;
}
}
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);
}
}
/**
* _scsih_probe_devices - probing for devices
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
{
u16 volume_mapping_flags;
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) {
volume_mapping_flags =
le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (volume_mapping_flags ==
MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
_scsih_probe_raid(ioc);
_scsih_probe_sas(ioc);
} else {
_scsih_probe_sas(ioc);
_scsih_probe_raid(ioc);
}
} else
_scsih_probe_sas(ioc);
}
/**
* _scsih_scan_start - scsi lld callback for .scan_start
* @shost: SCSI host pointer
*
* The shost has the ability to discover targets on its own instead
* of scanning the entire bus. In our implemention, we will kick off
* firmware discovery.
*/
static void
_scsih_scan_start(struct Scsi_Host *shost)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
int rc;
if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
if (disable_discovery > 0)
return;
ioc->start_scan = 1;
rc = mpt3sas_port_enable(ioc);
if (rc != 0)
pr_info(MPT3SAS_FMT "port enable: FAILED\n", ioc->name);
}
/**
* _scsih_scan_finished - scsi lld callback for .scan_finished
* @shost: SCSI host pointer
* @time: elapsed time of the scan in jiffies
*
* This function will be called periodicallyn until it returns 1 with the
* scsi_host and the elapsed time of the scan in jiffies. In our implemention,
* we wait for firmware discovery to complete, then return 1.
*/
static int
_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
if (disable_discovery > 0) {
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
return 1;
}
if (time >= (300 * HZ)) {
ioc->base_cmds.status = MPT3_CMD_NOT_USED;
pr_info(MPT3SAS_FMT
"port enable: FAILED with timeout (timeout=300s)\n",
ioc->name);
ioc->is_driver_loading = 0;
return 1;
}
if (ioc->start_scan)
return 0;
if (ioc->start_scan_failed) {
pr_info(MPT3SAS_FMT
"port enable: FAILED with (ioc_status=0x%08x)\n",
ioc->name, ioc->start_scan_failed);
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
ioc->remove_host = 1;
return 1;
}
pr_info(MPT3SAS_FMT "port enable: SUCCESS\n", ioc->name);
ioc->base_cmds.status = MPT3_CMD_NOT_USED;
if (ioc->wait_for_discovery_to_complete) {
ioc->wait_for_discovery_to_complete = 0;
_scsih_probe_devices(ioc);
}
mpt3sas_base_start_watchdog(ioc);
ioc->is_driver_loading = 0;
return 1;
}
/**
* _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 MPT3SAS_ADAPTER *ioc;
struct Scsi_Host *shost;
shost = scsi_host_alloc(&scsih_driver_template,
sizeof(struct MPT3SAS_ADAPTER));
if (!shost)
return -ENODEV;
/* init local params */
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
INIT_LIST_HEAD(&ioc->list);
list_add_tail(&ioc->list, &mpt3sas_ioc_list);
ioc->shost = shost;
ioc->id = mpt_ids++;
sprintf(ioc->name, "%s%d", MPT3SAS_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->port_enable_cb_idx = port_enable_cb_idx;
ioc->transport_cb_idx = transport_cb_idx;
ioc->scsih_cb_idx = scsih_cb_idx;
ioc->config_cb_idx = config_cb_idx;
ioc->tm_tr_cb_idx = tm_tr_cb_idx;
ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
ioc->logging_level = logging_level;
ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
/* misc semaphores and spin locks */
mutex_init(&ioc->reset_in_progress_mutex);
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);
spin_lock_init(&ioc->diag_trigger_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_LIST_HEAD(&ioc->delayed_tr_list);
INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
INIT_LIST_HEAD(&ioc->reply_queue_list);
/* init shost parameters */
shost->max_cmd_len = 32;
shost->max_lun = max_lun;
shost->transportt = mpt3sas_transport_template;
shost->unique_id = ioc->id;
if (max_sectors != 0xFFFF) {
if (max_sectors < 64) {
shost->max_sectors = 64;
pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
"for max_sectors, range is 64 to 32767. Assigning "
"value of 64.\n", ioc->name, max_sectors);
} else if (max_sectors > 32767) {
shost->max_sectors = 32767;
pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
"for max_sectors, range is 64 to 32767. Assigning "
"default value of 32767.\n", ioc->name,
max_sectors);
} else {
shost->max_sectors = max_sectors & 0xFFFE;
pr_info(MPT3SAS_FMT
"The max_sectors value is set to %d\n",
ioc->name, shost->max_sectors);
}
}
/* register EEDP capabilities with SCSI layer */
if (prot_mask > 0)
scsi_host_set_prot(shost, prot_mask);
else
scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE2_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION);
scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
/* 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) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_thread_fail;
}
ioc->is_driver_loading = 1;
if ((mpt3sas_base_attach(ioc))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_attach_fail;
}
if ((scsi_add_host(shost, &pdev->dev))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
list_del(&ioc->list);
goto out_add_shost_fail;
}
scsi_scan_host(shost);
return 0;
out_add_shost_fail:
mpt3sas_base_detach(ioc);
out_attach_fail:
destroy_workqueue(ioc->firmware_event_thread);
out_thread_fail:
list_del(&ioc->list);
scsi_host_put(shost);
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 MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pci_power_t device_state;
mpt3sas_base_stop_watchdog(ioc);
flush_scheduled_work();
scsi_block_requests(shost);
device_state = pci_choose_state(pdev, state);
pr_info(MPT3SAS_FMT
"pdev=0x%p, slot=%s, entering operating state [D%d]\n",
ioc->name, pdev, pci_name(pdev), device_state);
pci_save_state(pdev);
mpt3sas_base_free_resources(ioc);
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 MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pci_power_t device_state = pdev->current_state;
int r;
pr_info(MPT3SAS_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 = mpt3sas_base_map_resources(ioc);
if (r)
return r;
mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
scsi_unblock_requests(shost);
mpt3sas_base_start_watchdog(ioc);
return 0;
}
#endif /* CONFIG_PM */
/**
* _scsih_pci_error_detected - Called when a PCI error is detected.
* @pdev: PCI device struct
* @state: PCI channel state
*
* Description: Called when a PCI error is detected.
*
* Return value:
* PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
*/
static pci_ers_result_t
_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pr_info(MPT3SAS_FMT "PCI error: detected callback, state(%d)!!\n",
ioc->name, state);
switch (state) {
case pci_channel_io_normal:
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
/* Fatal error, prepare for slot reset */
ioc->pci_error_recovery = 1;
scsi_block_requests(ioc->shost);
mpt3sas_base_stop_watchdog(ioc);
mpt3sas_base_free_resources(ioc);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
/* Permanent error, prepare for device removal */
ioc->pci_error_recovery = 1;
mpt3sas_base_stop_watchdog(ioc);
_scsih_flush_running_cmds(ioc);
return PCI_ERS_RESULT_DISCONNECT;
}
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* _scsih_pci_slot_reset - Called when PCI slot has been reset.
* @pdev: PCI device struct
*
* Description: This routine is called by the pci error recovery
* code after the PCI slot has been reset, just before we
* should resume normal operations.
*/
static pci_ers_result_t
_scsih_pci_slot_reset(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
int rc;
pr_info(MPT3SAS_FMT "PCI error: slot reset callback!!\n",
ioc->name);
ioc->pci_error_recovery = 0;
ioc->pdev = pdev;
pci_restore_state(pdev);
rc = mpt3sas_base_map_resources(ioc);
if (rc)
return PCI_ERS_RESULT_DISCONNECT;
rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name,
(rc == 0) ? "success" : "failed");
if (!rc)
return PCI_ERS_RESULT_RECOVERED;
else
return PCI_ERS_RESULT_DISCONNECT;
}
/**
* _scsih_pci_resume() - resume normal ops after PCI reset
* @pdev: pointer to PCI device
*
* Called when the error recovery driver tells us that its
* OK to resume normal operation. Use completion to allow
* halted scsi ops to resume.
*/
static void
_scsih_pci_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pr_info(MPT3SAS_FMT "PCI error: resume callback!!\n", ioc->name);
pci_cleanup_aer_uncorrect_error_status(pdev);
mpt3sas_base_start_watchdog(ioc);
scsi_unblock_requests(ioc->shost);
}
/**
* _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
* @pdev: pointer to PCI device
*/
static pci_ers_result_t
_scsih_pci_mmio_enabled(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pr_info(MPT3SAS_FMT "PCI error: mmio enabled callback!!\n",
ioc->name);
/* TODO - dump whatever for debugging purposes */
/* Request a slot reset. */
return PCI_ERS_RESULT_NEED_RESET;
}
/* raid transport support */
static struct raid_function_template mpt3sas_raid_functions = {
.cookie = &scsih_driver_template,
.is_raid = _scsih_is_raid,
.get_resync = _scsih_get_resync,
.get_state = _scsih_get_state,
};
static struct pci_error_handlers _scsih_err_handler = {
.error_detected = _scsih_pci_error_detected,
.mmio_enabled = _scsih_pci_mmio_enabled,
.slot_reset = _scsih_pci_slot_reset,
.resume = _scsih_pci_resume,
};
static struct pci_driver scsih_driver = {
.name = MPT3SAS_DRIVER_NAME,
.id_table = scsih_pci_table,
.probe = _scsih_probe,
.remove = _scsih_remove,
.shutdown = _scsih_shutdown,
.err_handler = &_scsih_err_handler,
#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;
pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
MPT3SAS_DRIVER_VERSION);
mpt3sas_transport_template =
sas_attach_transport(&mpt3sas_transport_functions);
if (!mpt3sas_transport_template)
return -ENODEV;
/* raid transport support */
mpt3sas_raid_template = raid_class_attach(&mpt3sas_raid_functions);
if (!mpt3sas_raid_template) {
sas_release_transport(mpt3sas_transport_template);
return -ENODEV;
}
mpt3sas_base_initialize_callback_handler();
/* queuecommand callback hander */
scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
/* task managment callback handler */
tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
/* base internal commands callback handler */
base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
port_enable_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_port_enable_done);
/* transport internal commands callback handler */
transport_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_transport_done);
/* scsih internal commands callback handler */
scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
/* configuration page API internal commands callback handler */
config_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_config_done);
/* ctl module callback handler */
ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_tm_tr_complete);
tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_tm_volume_tr_complete);
tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_sas_control_complete);
mpt3sas_ctl_init();
error = pci_register_driver(&scsih_driver);
if (error) {
/* raid transport support */
raid_class_release(mpt3sas_raid_template);
sas_release_transport(mpt3sas_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)
{
pr_info("mpt3sas version %s unloading\n",
MPT3SAS_DRIVER_VERSION);
mpt3sas_ctl_exit();
pci_unregister_driver(&scsih_driver);
mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
mpt3sas_base_release_callback_handler(tm_cb_idx);
mpt3sas_base_release_callback_handler(base_cb_idx);
mpt3sas_base_release_callback_handler(port_enable_cb_idx);
mpt3sas_base_release_callback_handler(transport_cb_idx);
mpt3sas_base_release_callback_handler(scsih_cb_idx);
mpt3sas_base_release_callback_handler(config_cb_idx);
mpt3sas_base_release_callback_handler(ctl_cb_idx);
mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
/* raid transport support */
raid_class_release(mpt3sas_raid_template);
sas_release_transport(mpt3sas_transport_template);
}
module_init(_scsih_init);
module_exit(_scsih_exit);
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