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kernel-ark/drivers/scsi/mpt2sas/mpt2sas_scsih.c
Eric Moore d5d135b3a7 [SCSI] mpt2sas: using the same naming convention for all static function 
This fix's is for all local function so their name has the "_" preceeding
the module name, then function name.  Most the code is already is using this
naming convention.

Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-23 15:44:17 -05:00

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/*
* Scsi Host Layer for MPT (Message Passing Technology) based controllers
*
* This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
* Copyright (C) 2007-2008 LSI Corporation
* (mailto:DL-MPTFusionLinux@lsi.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include "mpt2sas_base.h"
MODULE_AUTHOR(MPT2SAS_AUTHOR);
MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
#define RAID_CHANNEL 1
/* forward proto's */
static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander);
static void _firmware_event_work(struct work_struct *work);
/* global parameters */
LIST_HEAD(mpt2sas_ioc_list);
/* local parameters */
static u8 scsi_io_cb_idx = -1;
static u8 tm_cb_idx = -1;
static u8 ctl_cb_idx = -1;
static u8 base_cb_idx = -1;
static u8 transport_cb_idx = -1;
static u8 config_cb_idx = -1;
static int mpt_ids;
/* command line options */
static u32 logging_level;
MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
"(default=0)");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT2SAS_MAX_LUN (16895)
static int max_lun = MPT2SAS_MAX_LUN;
module_param(max_lun, int, 0);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
/**
* struct sense_info - common structure for obtaining sense keys
* @skey: sense key
* @asc: additional sense code
* @ascq: additional sense code qualifier
*/
struct sense_info {
u8 skey;
u8 asc;
u8 ascq;
};
#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
/**
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
* @ioc: per adapter object
* @VF_ID: virtual function id
* @host_reset_handling: handling events during host reset
* @ignore: flag meaning this event has been marked to ignore
* @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
* @event_data: reply event data payload follows
*
* This object stored on ioc->fw_event_list.
*/
struct fw_event_work {
struct list_head list;
struct work_struct work;
struct MPT2SAS_ADAPTER *ioc;
u8 VF_ID;
u8 host_reset_handling;
u8 ignore;
u16 event;
void *event_data;
};
/**
* struct _scsi_io_transfer - scsi io transfer
* @handle: sas device handle (assigned by firmware)
* @is_raid: flag set for hidden raid components
* @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
* @data_length: data transfer length
* @data_dma: dma pointer to data
* @sense: sense data
* @lun: lun number
* @cdb_length: cdb length
* @cdb: cdb contents
* @valid_reply: flag set for reply message
* @timeout: timeout for this command
* @sense_length: sense length
* @ioc_status: ioc status
* @scsi_state: scsi state
* @scsi_status: scsi staus
* @log_info: log information
* @transfer_length: data length transfer when there is a reply message
*
* Used for sending internal scsi commands to devices within this module.
* Refer to _scsi_send_scsi_io().
*/
struct _scsi_io_transfer {
u16 handle;
u8 is_raid;
enum dma_data_direction dir;
u32 data_length;
dma_addr_t data_dma;
u8 sense[SCSI_SENSE_BUFFERSIZE];
u32 lun;
u8 cdb_length;
u8 cdb[32];
u8 timeout;
u8 valid_reply;
/* the following bits are only valid when 'valid_reply = 1' */
u32 sense_length;
u16 ioc_status;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
u32 transfer_length;
};
/*
* The pci device ids are defined in mpi/mpi2_cnfg.h.
*/
static struct pci_device_id scsih_pci_table[] = {
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
PCI_ANY_ID, PCI_ANY_ID },
/* Falcon ~ 2008*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
PCI_ANY_ID, PCI_ANY_ID },
/* Liberator ~ 2108 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
PCI_ANY_ID, PCI_ANY_ID },
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, scsih_pci_table);
/**
* _scsih_set_debug_level - global setting of ioc->logging_level.
*
* Note: The logging levels are defined in mpt2sas_debug.h.
*/
static int
_scsih_set_debug_level(const char *val, struct kernel_param *kp)
{
int ret = param_set_int(val, kp);
struct MPT2SAS_ADAPTER *ioc;
if (ret)
return ret;
printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
ioc->logging_level = logging_level;
return 0;
}
module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
&logging_level, 0644);
/**
* _scsih_srch_boot_sas_address - search based on sas_address
* @sas_address: sas address
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_sas_address(u64 sas_address,
Mpi2BootDeviceSasWwid_t *boot_device)
{
return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
}
/**
* _scsih_srch_boot_device_name - search based on device name
* @device_name: device name specified in INDENTIFY fram
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_device_name(u64 device_name,
Mpi2BootDeviceDeviceName_t *boot_device)
{
return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
}
/**
* _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
* @enclosure_logical_id: enclosure logical id
* @slot_number: slot number
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
Mpi2BootDeviceEnclosureSlot_t *boot_device)
{
return (enclosure_logical_id == le64_to_cpu(boot_device->
EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
SlotNumber)) ? 1 : 0;
}
/**
* _scsih_is_boot_device - search for matching boot device.
* @sas_address: sas address
* @device_name: device name specified in INDENTIFY fram
* @enclosure_logical_id: enclosure logical id
* @slot_number: slot number
* @form: specifies boot device form
* @boot_device: boot device object from bios page 2
*
* Returns 1 when there's a match, 0 means no match.
*/
static int
_scsih_is_boot_device(u64 sas_address, u64 device_name,
u64 enclosure_logical_id, u16 slot, u8 form,
Mpi2BiosPage2BootDevice_t *boot_device)
{
int rc = 0;
switch (form) {
case MPI2_BIOSPAGE2_FORM_SAS_WWID:
if (!sas_address)
break;
rc = _scsih_srch_boot_sas_address(
sas_address, &boot_device->SasWwid);
break;
case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
if (!enclosure_logical_id)
break;
rc = _scsih_srch_boot_encl_slot(
enclosure_logical_id,
slot, &boot_device->EnclosureSlot);
break;
case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
if (!device_name)
break;
rc = _scsih_srch_boot_device_name(
device_name, &boot_device->DeviceName);
break;
case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
break;
}
return rc;
}
/**
* _scsih_determine_boot_device - determine boot device.
* @ioc: per adapter object
* @device: either sas_device or raid_device object
* @is_raid: [flag] 1 = raid object, 0 = sas object
*
* Determines whether this device should be first reported device to
* to scsi-ml or sas transport, this purpose is for persistant boot device.
* There are primary, alternate, and current entries in bios page 2. The order
* priority is primary, alternate, then current. This routine saves
* the corresponding device object and is_raid flag in the ioc object.
* The saved data to be used later in _scsih_probe_boot_devices().
*/
static void
_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
void *device, u8 is_raid)
{
struct _sas_device *sas_device;
struct _raid_device *raid_device;
u64 sas_address;
u64 device_name;
u64 enclosure_logical_id;
u16 slot;
/* only process this function when driver loads */
if (!ioc->wait_for_port_enable_to_complete)
return;
if (!is_raid) {
sas_device = device;
sas_address = sas_device->sas_address;
device_name = sas_device->device_name;
enclosure_logical_id = sas_device->enclosure_logical_id;
slot = sas_device->slot;
} else {
raid_device = device;
sas_address = raid_device->wwid;
device_name = 0;
enclosure_logical_id = 0;
slot = 0;
}
if (!ioc->req_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.ReqBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.RequestedBootDevice)) {
dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s: req_boot_device(0x%016llx)\n",
ioc->name, __func__,
(unsigned long long)sas_address));
ioc->req_boot_device.device = device;
ioc->req_boot_device.is_raid = is_raid;
}
}
if (!ioc->req_alt_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.ReqAltBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.RequestedAltBootDevice)) {
dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s: req_alt_boot_device(0x%016llx)\n",
ioc->name, __func__,
(unsigned long long)sas_address));
ioc->req_alt_boot_device.device = device;
ioc->req_alt_boot_device.is_raid = is_raid;
}
}
if (!ioc->current_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.CurrentBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.CurrentBootDevice)) {
dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s: current_boot_device(0x%016llx)\n",
ioc->name, __func__,
(unsigned long long)sas_address));
ioc->current_boot_device.device = device;
ioc->current_boot_device.is_raid = is_raid;
}
}
}
/**
* mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address, then return sas_device
* object.
*/
struct _sas_device *
mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device, *r;
r = NULL;
/* check the sas_device_init_list */
list_for_each_entry(sas_device, &ioc->sas_device_init_list,
list) {
if (sas_device->sas_address != sas_address)
continue;
r = sas_device;
goto out;
}
/* then check the sas_device_list */
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->sas_address != sas_address)
continue;
r = sas_device;
goto out;
}
out:
return r;
}
/**
* _scsih_sas_device_find_by_handle - sas device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address, then return sas_device
* object.
*/
static struct _sas_device *
_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device, *r;
r = NULL;
if (ioc->wait_for_port_enable_to_complete) {
list_for_each_entry(sas_device, &ioc->sas_device_init_list,
list) {
if (sas_device->handle != handle)
continue;
r = sas_device;
goto out;
}
} else {
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->handle != handle)
continue;
r = sas_device;
goto out;
}
}
out:
return r;
}
/**
* _scsih_sas_device_remove - remove sas_device from list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Removing object and freeing associated memory from the ioc->sas_device_list.
*/
static void
_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_del(&sas_device->list);
memset(sas_device, 0, sizeof(struct _sas_device));
kfree(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_sas_device_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object to the ioc->sas_device_list.
*/
static void
_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
u16 handle, parent_handle;
u64 sas_address;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
handle = sas_device->handle;
parent_handle = sas_device->parent_handle;
sas_address = sas_device->sas_address;
if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
_scsih_sas_device_remove(ioc, sas_device);
}
/**
* _scsih_sas_device_init_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object at driver load time to the ioc->sas_device_init_list.
*/
static void
_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_determine_boot_device(ioc, sas_device, 0);
}
/**
* mpt2sas_scsih_expander_find_by_handle - expander device search
* @ioc: per adapter object
* @handle: expander handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for expander device based on handle, then returns the
* sas_node object.
*/
struct _sas_node *
mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->handle != handle)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_id - raid device search
* @ioc: per adapter object
* @id: sas device target id
* @channel: sas device channel
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on target id, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->id == id && raid_device->channel == channel) {
r = raid_device;
goto out;
}
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_handle - raid device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on handle, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->handle != handle)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_wwid - raid device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on wwid, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid != wwid)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_add - add raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
* This is added to the raid_device_list link list.
*/
static void
_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
"(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
raid_device->handle, (unsigned long long)raid_device->wwid));
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_add_tail(&raid_device->list, &ioc->raid_device_list);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_raid_device_remove - delete raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
* This is removed from the raid_device_list link list.
*/
static void
_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_del(&raid_device->list);
memset(raid_device, 0, sizeof(struct _raid_device));
kfree(raid_device);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* mpt2sas_scsih_expander_find_by_sas_address - expander device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_node_lock.
*
* This searches for expander device based on sas_address, then returns the
* sas_node object.
*/
struct _sas_node *
mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* _scsih_expander_node_add - insert expander device to the list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
* Context: This function will acquire ioc->sas_node_lock.
*
* Adding new object to the ioc->sas_expander_list.
*
* Return nothing.
*/
static void
_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_is_end_device - determines if device is an end device
* @device_info: bitfield providing information about the device.
* Context: none
*
* Returns 1 if end device.
*/
static int
_scsih_is_end_device(u32 device_info)
{
if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
(device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
(device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
return 1;
else
return 0;
}
/**
* _scsih_scsi_lookup_get - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* Returns the smid stored scmd pointer.
*/
static struct scsi_cmnd *
_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
unsigned long flags;
struct scsi_cmnd *scmd;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
scmd = ioc->scsi_lookup[smid - 1].scmd;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return scmd;
}
/**
* mptscsih_getclear_scsi_lookup - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
*/
static struct scsi_cmnd *
_scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
unsigned long flags;
struct scsi_cmnd *scmd;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
scmd = ioc->scsi_lookup[smid - 1].scmd;
ioc->scsi_lookup[smid - 1].scmd = NULL;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return scmd;
}
/**
* _scsih_scsi_lookup_set - updates scmd entry in lookup
* @ioc: per adapter object
* @smid: system request message index
* @scmd: pointer to scsi command object
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will save scmd pointer in the scsi_lookup array.
*
* Return nothing.
*/
static void
_scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
struct scsi_cmnd *scmd)
{
unsigned long flags;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->scsi_lookup[smid - 1].scmd = scmd;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
}
/**
* _scsih_scsi_lookup_find_by_scmd - scmd lookup
* @ioc: per adapter object
* @smid: system request message index
* @scmd: pointer to scsi command object
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a scmd pointer in the scsi_lookup array,
* returning the revelent smid. A returned value of zero means invalid.
*/
static u16
_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
*scmd)
{
u16 smid;
unsigned long flags;
int i;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
smid = 0;
for (i = 0; i < ioc->request_depth; i++) {
if (ioc->scsi_lookup[i].scmd == scmd) {
smid = i + 1;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return smid;
}
/**
* _scsih_scsi_lookup_find_by_target - search for matching channel:id
* @ioc: per adapter object
* @id: target id
* @channel: channel
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a matching channel:id in the scsi_lookup array,
* returning 1 if found.
*/
static u8
_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
int channel)
{
u8 found;
unsigned long flags;
int i;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
found = 0;
for (i = 0 ; i < ioc->request_depth; i++) {
if (ioc->scsi_lookup[i].scmd &&
(ioc->scsi_lookup[i].scmd->device->id == id &&
ioc->scsi_lookup[i].scmd->device->channel == channel)) {
found = 1;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return found;
}
/**
* _scsih_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 MPT2SAS_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->request_depth; i++) {
if (ioc->scsi_lookup[i].scmd &&
(ioc->scsi_lookup[i].scmd->device->id == id &&
ioc->scsi_lookup[i].scmd->device->channel == channel &&
ioc->scsi_lookup[i].scmd->device->lun == lun)) {
found = 1;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
return found;
}
/**
* _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
* @ioc: per adapter object
* @smid: system request message index
*
* Returns phys pointer to chain buffer.
*/
static dma_addr_t
_scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
ioc->chains_needed_per_io));
}
/**
* _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
* @ioc: per adapter object
* @smid: system request message index
*
* Returns virt pointer to chain buffer.
*/
static void *
_scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
ioc->chains_needed_per_io)));
}
/**
* _scsih_build_scatter_gather - main sg creation routine
* @ioc: per adapter object
* @scmd: scsi command
* @smid: system request message index
* Context: none.
*
* The main routine that builds scatter gather table from a given
* scsi request sent via the .queuecommand main handler.
*
* Returns 0 success, anything else error
*/
static int
_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
struct scsi_cmnd *scmd, u16 smid)
{
Mpi2SCSIIORequest_t *mpi_request;
dma_addr_t chain_dma;
struct scatterlist *sg_scmd;
void *sg_local, *chain;
u32 chain_offset;
u32 chain_length;
u32 chain_flags;
u32 sges_left;
u32 sges_in_segment;
u32 sgl_flags;
u32 sgl_flags_last_element;
u32 sgl_flags_end_buffer;
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
/* init scatter gather flags */
sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
if (scmd->sc_data_direction == DMA_TO_DEVICE)
sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
<< MPI2_SGE_FLAGS_SHIFT;
sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
<< MPI2_SGE_FLAGS_SHIFT;
sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
sg_scmd = scsi_sglist(scmd);
sges_left = scsi_dma_map(scmd);
if (!sges_left) {
sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
" failed: request for %d bytes!\n", scsi_bufflen(scmd));
return -ENOMEM;
}
sg_local = &mpi_request->SGL;
sges_in_segment = ioc->max_sges_in_main_message;
if (sges_left <= sges_in_segment)
goto fill_in_last_segment;
mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
(sges_in_segment * ioc->sge_size))/4;
/* fill in main message segment when there is a chain following */
while (sges_in_segment) {
if (sges_in_segment == 1)
ioc->base_add_sg_single(sg_local,
sgl_flags_last_element | sg_dma_len(sg_scmd),
sg_dma_address(sg_scmd));
else
ioc->base_add_sg_single(sg_local, sgl_flags |
sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
sg_scmd = sg_next(sg_scmd);
sg_local += ioc->sge_size;
sges_left--;
sges_in_segment--;
}
/* initializing the chain flags and pointers */
chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
chain = _scsih_get_chain_buffer(ioc, smid);
chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
do {
sges_in_segment = (sges_left <=
ioc->max_sges_in_chain_message) ? sges_left :
ioc->max_sges_in_chain_message;
chain_offset = (sges_left == sges_in_segment) ?
0 : (sges_in_segment * ioc->sge_size)/4;
chain_length = sges_in_segment * ioc->sge_size;
if (chain_offset) {
chain_offset = chain_offset <<
MPI2_SGE_CHAIN_OFFSET_SHIFT;
chain_length += ioc->sge_size;
}
ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
chain_length, chain_dma);
sg_local = chain;
if (!chain_offset)
goto fill_in_last_segment;
/* fill in chain segments */
while (sges_in_segment) {
if (sges_in_segment == 1)
ioc->base_add_sg_single(sg_local,
sgl_flags_last_element |
sg_dma_len(sg_scmd),
sg_dma_address(sg_scmd));
else
ioc->base_add_sg_single(sg_local, sgl_flags |
sg_dma_len(sg_scmd),
sg_dma_address(sg_scmd));
sg_scmd = sg_next(sg_scmd);
sg_local += ioc->sge_size;
sges_left--;
sges_in_segment--;
}
chain_dma += ioc->request_sz;
chain += ioc->request_sz;
} while (1);
fill_in_last_segment:
/* fill the last segment */
while (sges_left) {
if (sges_left == 1)
ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
else
ioc->base_add_sg_single(sg_local, sgl_flags |
sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
sg_scmd = sg_next(sg_scmd);
sg_local += ioc->sge_size;
sges_left--;
}
return 0;
}
/**
* _scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
*
* Returns queue depth.
*/
static int
_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
int max_depth;
int tag_type;
max_depth = shost->can_queue;
if (!sdev->tagged_supported)
max_depth = 1;
if (qdepth > max_depth)
qdepth = max_depth;
tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
scsi_adjust_queue_depth(sdev, tag_type, qdepth);
if (sdev->inquiry_len > 7)
sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
"simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
sdev->ordered_tags, sdev->scsi_level,
(sdev->inquiry[7] & 2) >> 1);
return sdev->queue_depth;
}
/**
* _scsih_change_queue_depth - changing device queue tag type
* @sdev: scsi device struct
* @tag_type: requested tag type
*
* Returns queue tag type.
*/
static int
_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
{
if (sdev->tagged_supported) {
scsi_set_tag_type(sdev, tag_type);
if (tag_type)
scsi_activate_tcq(sdev, sdev->queue_depth);
else
scsi_deactivate_tcq(sdev, sdev->queue_depth);
} else
tag_type = 0;
return tag_type;
}
/**
* _scsih_target_alloc - target add routine
* @starget: scsi target struct
*
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
_scsih_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
struct sas_rphy *rphy;
sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
if (!sas_target_priv_data)
return -ENOMEM;
starget->hostdata = sas_target_priv_data;
sas_target_priv_data->starget = starget;
sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
/* RAID volumes */
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
sas_target_priv_data->handle = raid_device->handle;
sas_target_priv_data->sas_address = raid_device->wwid;
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
raid_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return 0;
}
/* sas/sata devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
rphy->identify.sas_address);
if (sas_device) {
sas_target_priv_data->handle = sas_device->handle;
sas_target_priv_data->sas_address = sas_device->sas_address;
sas_device->starget = starget;
sas_device->id = starget->id;
sas_device->channel = starget->channel;
if (sas_device->hidden_raid_component)
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return 0;
}
/**
* _scsih_target_destroy - target destroy routine
* @starget: scsi target struct
*
* Returns nothing.
*/
static void
_scsih_target_destroy(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
struct sas_rphy *rphy;
sas_target_priv_data = starget->hostdata;
if (!sas_target_priv_data)
return;
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
raid_device->starget = NULL;
raid_device->sdev = NULL;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
goto out;
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
rphy->identify.sas_address);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
(sas_device->channel == starget->channel))
sas_device->starget = NULL;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
out:
kfree(sas_target_priv_data);
starget->hostdata = NULL;
}
/**
* _scsih_slave_alloc - device add routine
* @sdev: scsi device struct
*
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
_scsih_slave_alloc(struct scsi_device *sdev)
{
struct Scsi_Host *shost;
struct MPT2SAS_ADAPTER *ioc;
struct MPT2SAS_TARGET *sas_target_priv_data;
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_target *starget;
struct _raid_device *raid_device;
struct _sas_device *sas_device;
unsigned long flags;
sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
if (!sas_device_priv_data)
return -ENOMEM;
sas_device_priv_data->lun = sdev->lun;
sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns++;
sas_device_priv_data->sas_target = sas_target_priv_data;
sdev->hostdata = sas_device_priv_data;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
sdev->no_uld_attach = 1;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc,
starget->id, starget->channel);
if (raid_device)
raid_device->sdev = sdev; /* raid is single lun */
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
} else {
/* set TLR bit for SSP devices */
if (!(ioc->facts.IOCCapabilities &
MPI2_IOCFACTS_CAPABILITY_TLR))
goto out;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
sas_device_priv_data->sas_target->sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device && sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SSP_TARGET)
sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
}
out:
return 0;
}
/**
* _scsih_slave_destroy - device destroy routine
* @sdev: scsi device struct
*
* Returns nothing.
*/
static void
_scsih_slave_destroy(struct scsi_device *sdev)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
if (!sdev->hostdata)
return;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns--;
kfree(sdev->hostdata);
sdev->hostdata = NULL;
}
/**
* _scsih_display_sata_capabilities - sata capabilities
* @ioc: per adapter object
* @sas_device: the sas_device object
* @sdev: scsi device struct
*/
static void
_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
struct _sas_device *sas_device, struct scsi_device *sdev)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u16 flags;
u32 device_info;
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
flags = le16_to_cpu(sas_device_pg0.Flags);
device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
sdev_printk(KERN_INFO, sdev,
"atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
"sw_preserve(%s)\n",
(device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
"n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
}
/**
* _scsih_get_volume_capabilities - volume capabilities
* @ioc: per adapter object
* @sas_device: the raid_device object
*/
static void
_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
Mpi2RaidVolPage0_t *vol_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 sz;
u8 num_pds;
if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
&num_pds)) || !num_pds) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
raid_device->num_pds = num_pds;
sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
sizeof(Mpi2RaidVol0PhysDisk_t));
vol_pg0 = kzalloc(sz, GFP_KERNEL);
if (!vol_pg0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
kfree(vol_pg0);
return;
}
raid_device->volume_type = vol_pg0->VolumeType;
/* figure out what the underlying devices are by
* obtaining the device_info bits for the 1st device
*/
if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
vol_pg0->PhysDisk[0].PhysDiskNum))) {
if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
le16_to_cpu(pd_pg0.DevHandle)))) {
raid_device->device_info =
le32_to_cpu(sas_device_pg0.DeviceInfo);
}
}
kfree(vol_pg0);
}
/**
* _scsih_slave_configure - device configure routine.
* @sdev: scsi device struct
*
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
_scsih_slave_configure(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
int qdepth;
u8 ssp_target = 0;
char *ds = "";
char *r_level = "";
qdepth = 1;
sas_device_priv_data = sdev->hostdata;
sas_device_priv_data->configured_lun = 1;
sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
sas_target_priv_data = sas_device_priv_data->sas_target;
/* raid volume handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(ioc,
sas_target_priv_data->handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return 0;
}
_scsih_get_volume_capabilities(ioc, raid_device);
/* RAID Queue Depth Support
* IS volume = underlying qdepth of drive type, either
* MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
* IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
*/
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
ds = "SSP";
} else {
qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
else
ds = "STP";
}
switch (raid_device->volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
r_level = "RAID0";
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1E";
break;
case MPI2_RAID_VOL_TYPE_RAID1:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1";
break;
case MPI2_RAID_VOL_TYPE_RAID10:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAID10";
break;
case MPI2_RAID_VOL_TYPE_UNKNOWN:
default:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
r_level = "RAIDX";
break;
}
sdev_printk(KERN_INFO, sdev, "%s: "
"handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
r_level, raid_device->handle,
(unsigned long long)raid_device->wwid,
raid_device->num_pds, ds);
_scsih_change_queue_depth(sdev, qdepth);
return 0;
}
/* non-raid handling */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
sas_device_priv_data->sas_target->sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
if (sas_target_priv_data->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
mpt2sas_config_get_volume_handle(ioc,
sas_device->handle, &sas_device->volume_handle);
mpt2sas_config_get_volume_wwid(ioc,
sas_device->volume_handle,
&sas_device->volume_wwid);
}
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
ssp_target = 1;
ds = "SSP";
} else {
qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_STP_TARGET)
ds = "STP";
else if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
}
sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
"sas_addr(0x%016llx), device_name(0x%016llx)\n",
ds, sas_device->handle,
(unsigned long long)sas_device->sas_address,
(unsigned long long)sas_device->device_name);
sdev_printk(KERN_INFO, sdev, "%s: "
"enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
(unsigned long long) sas_device->enclosure_logical_id,
sas_device->slot);
if (!ssp_target)
_scsih_display_sata_capabilities(ioc, sas_device, sdev);
}
_scsih_change_queue_depth(sdev, qdepth);
if (ssp_target)
sas_read_port_mode_page(sdev);
return 0;
}
/**
* _scsih_bios_param - fetch head, sector, cylinder info for a disk
* @sdev: scsi device struct
* @bdev: pointer to block device context
* @capacity: device size (in 512 byte sectors)
* @params: three element array to place output:
* params[0] number of heads (max 255)
* params[1] number of sectors (max 63)
* params[2] number of cylinders
*
* Return nothing.
*/
static int
_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int params[])
{
int heads;
int sectors;
sector_t cylinders;
ulong dummy;
heads = 64;
sectors = 32;
dummy = heads * sectors;
cylinders = capacity;
sector_div(cylinders, dummy);
/*
* Handle extended translation size for logical drives
* > 1Gb
*/
if ((ulong)capacity >= 0x200000) {
heads = 255;
sectors = 63;
dummy = heads * sectors;
cylinders = capacity;
sector_div(cylinders, dummy);
}
/* return result */
params[0] = heads;
params[1] = sectors;
params[2] = cylinders;
return 0;
}
/**
* _scsih_response_code - translation of device response code
* @ioc: per adapter object
* @response_code: response code returned by the device
*
* Return nothing.
*/
static void
_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
{
char *desc;
switch (response_code) {
case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
desc = "task management request completed";
break;
case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
desc = "invalid frame";
break;
case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
desc = "task management request not supported";
break;
case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
desc = "task management request failed";
break;
case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
desc = "task management request succeeded";
break;
case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
desc = "invalid lun";
break;
case 0xA:
desc = "overlapped tag attempted";
break;
case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
desc = "task queued, however not sent to target";
break;
default:
desc = "unknown";
break;
}
printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
ioc->name, response_code, desc);
}
/**
* _scsih_tm_done - tm completion routine
* @ioc: per adapter object
* @smid: system request message index
* @VF_ID: virtual function id
* @reply: reply message frame(lower 32bit addr)
* Context: none.
*
* The callback handler when using scsih_issue_tm.
*
* Return nothing.
*/
static void
_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
return;
if (ioc->tm_cmds.smid != smid)
return;
ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
if (mpi_reply) {
memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
}
ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
complete(&ioc->tm_cmds.done);
}
/**
* mpt2sas_scsih_set_tm_flag - set per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 1;
skip = 1;
ioc->ignore_loginfos = 1;
}
}
}
/**
* mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 0;
skip = 1;
ioc->ignore_loginfos = 0;
}
}
}
/**
* mpt2sas_scsih_issue_tm - main routine for sending tm requests
* @ioc: per adapter struct
* @device_handle: device handle
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
* @timeout: timeout in seconds
* Context: The calling function needs to acquire the tm_cmds.mutex
*
* A generic API for sending task management requests to firmware.
*
* The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
* this API.
*
* The callback index is set inside `ioc->tm_cb_idx`.
*
* Return nothing.
*/
void
mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
u8 type, u16 smid_task, ulong timeout)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
u16 smid = 0;
u32 ioc_state;
unsigned long timeleft;
u8 VF_ID = 0;
unsigned long flags;
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
ioc->shost_recovery) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
return;
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
"active!\n", ioc->name));
goto issue_host_reset;
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt2sas_base_fault_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
goto issue_host_reset;
}
smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
if (!smid) {
printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
return;
}
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
" task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
ioc->tm_cmds.status = MPT2_CMD_PENDING;
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
ioc->tm_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = type;
mpi_request->TaskMID = cpu_to_le16(smid_task);
int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
mpt2sas_scsih_set_tm_flag(ioc, handle);
mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
mpt2sas_scsih_clear_tm_flag(ioc, handle);
if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
printk(MPT2SAS_ERR_FMT "%s: timeout\n",
ioc->name, __func__);
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
goto issue_host_reset;
}
if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
mpi_reply = ioc->tm_cmds.reply;
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
"ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
if (ioc->logging_level & MPT_DEBUG_TM)
_scsih_response_code(ioc, mpi_reply->ResponseCode);
}
return;
issue_host_reset:
mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
}
/**
* _scsih_abort - eh threads main abort routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_abort(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
u16 smid;
u16 handle;
int r;
struct scsi_cmnd *scmd_lookup;
printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
ioc->name, scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* search for the command */
smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
if (!smid) {
scmd->result = DID_RESET << 16;
r = SUCCESS;
goto out;
}
/* for hidden raid components and volumes this is not supported */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT ||
sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mutex_lock(&ioc->tm_cmds.mutex);
handle = sas_device_priv_data->sas_target->handle;
mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
/* sanity check - see whether command actually completed */
scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
r = FAILED;
else
r = SUCCESS;
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
out:
printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_dev_reset - eh threads main device reset routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_dev_reset(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
u16 handle;
int r;
printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
ioc->name, scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc,
sas_device_priv_data->sas_target->handle);
if (sas_device)
handle = sas_device->volume_handle;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mutex_lock(&ioc->tm_cmds.mutex);
mpt2sas_scsih_issue_tm(ioc, handle, 0,
MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, scmd->device->lun,
30);
/*
* sanity check see whether all commands to this device been
* completed
*/
if (_scsih_scsi_lookup_find_by_lun(ioc, scmd->device->id,
scmd->device->lun, scmd->device->channel))
r = FAILED;
else
r = SUCCESS;
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
out:
printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_target_reset - eh threads main target reset routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_target_reset(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
u16 handle;
int r;
printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
ioc->name, scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc,
sas_device_priv_data->sas_target->handle);
if (sas_device)
handle = sas_device->volume_handle;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mutex_lock(&ioc->tm_cmds.mutex);
mpt2sas_scsih_issue_tm(ioc, handle, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
/*
* sanity check see whether all commands to this target been
* completed
*/
if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
scmd->device->channel))
r = FAILED;
else
r = SUCCESS;
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
out:
printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_abort - eh threads main host reset routine
* @sdev: scsi device struct
*
* Returns SUCCESS if command aborted else FAILED
*/
static int
_scsih_host_reset(struct scsi_cmnd *scmd)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
int r, retval;
printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
ioc->name, scmd);
scsi_print_command(scmd);
retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
FORCE_BIG_HAMMER);
r = (retval < 0) ? FAILED : SUCCESS;
printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
return r;
}
/**
* _scsih_fw_event_add - insert and queue up fw_event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* This adds the firmware event object into link list, then queues it up to
* be processed from user context.
*
* Return nothing.
*/
static void
_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
unsigned long flags;
if (ioc->firmware_event_thread == NULL)
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_WORK(&fw_event->work, _firmware_event_work);
queue_work(ioc->firmware_event_thread, &fw_event->work);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_free - delete fw_event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* This removes firmware event object from link list, frees associated memory.
*
* Return nothing.
*/
static void
_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
*fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_del(&fw_event->list);
kfree(fw_event->event_data);
kfree(fw_event);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_add - requeue an event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* Return nothing.
*/
static void
_scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
*fw_event, unsigned long delay)
{
unsigned long flags;
if (ioc->firmware_event_thread == NULL)
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
queue_work(ioc->firmware_event_thread, &fw_event->work);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_off - turn flag off preventing event handling
* @ioc: per adapter object
*
* Used to prevent handling of firmware events during adapter reset
* driver unload.
*
* Return nothing.
*/
static void
_scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
ioc->fw_events_off = 1;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_on - turn flag on allowing firmware event handling
* @ioc: per adapter object
*
* Returns nothing.
*/
static void
_scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
ioc->fw_events_off = 0;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_ublock_io_device - set the device state to SDEV_RUNNING
* @ioc: per adapter object
* @handle: device handle
*
* During device pull we need to appropiately set the sdev state.
*/
static void
_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (!sas_device_priv_data->block)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
MPT2SAS_INFO_FMT "SDEV_RUNNING: "
"handle(0x%04x)\n", ioc->name, handle));
sas_device_priv_data->block = 0;
scsi_device_set_state(sdev, SDEV_RUNNING);
}
}
}
/**
* _scsih_block_io_device - set the device state to SDEV_BLOCK
* @ioc: per adapter object
* @handle: device handle
*
* During device pull we need to appropiately set the sdev state.
*/
static void
_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->block)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
MPT2SAS_INFO_FMT "SDEV_BLOCK: "
"handle(0x%04x)\n", ioc->name, handle));
sas_device_priv_data->block = 1;
scsi_device_set_state(sdev, SDEV_BLOCK);
}
}
}
/**
* _scsih_block_io_to_children_attached_to_ex
* @ioc: per adapter object
* @sas_expander: the sas_device object
*
* This routine set sdev state to SDEV_BLOCK for all devices
* attached to this expander. This function called when expander is
* pulled.
*/
static void
_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device =
mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
continue;
_scsih_block_io_device(ioc, sas_device->handle);
}
}
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
expander_sibling =
mpt2sas_scsih_expander_find_by_sas_address(
ioc, mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_block_io_to_children_attached_to_ex(ioc,
expander_sibling);
}
}
}
/**
* _scsih_block_io_to_children_attached_directly
* @ioc: per adapter object
* @event_data: topology change event data
*
* This routine set sdev state to SDEV_BLOCK for all devices
* direct attached during device pull.
*/
static void
_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
}
}
/**
* _scsih_check_topo_delete_events - sanity check on topo events
* @ioc: per adapter object
* @event_data: the event data payload
*
* This routine added to better handle cable breaker.
*
* This handles the case where driver recieves multiple expander
* add and delete events in a single shot. When there is a delete event
* the routine will void any pending add events waiting in the event queue.
*
* Return nothing.
*/
static void
_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
struct fw_event_work *fw_event;
Mpi2EventDataSasTopologyChangeList_t *local_event_data;
u16 expander_handle;
struct _sas_node *sas_expander;
unsigned long flags;
expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
if (expander_handle < ioc->sas_hba.num_phys) {
_scsih_block_io_to_children_attached_directly(ioc, event_data);
return;
}
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
|| event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
expander_handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
} else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
_scsih_block_io_to_children_attached_directly(ioc, event_data);
if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
return;
/* mark ignore flag for pending events */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
fw_event->ignore)
continue;
local_event_data = fw_event->event_data;
if (local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_ADDED ||
local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
expander_handle) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"setting ignoring flag\n", ioc->name));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_queue_rescan - queue a topology rescan from user context
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
if (ioc->wait_for_port_enable_to_complete)
return;
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event)
return;
fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
}
/**
* _scsih_flush_running_cmds - completing outstanding commands.
* @ioc: per adapter object
*
* The flushing out of all pending scmd commands following host reset,
* where all IO is dropped to the floor.
*
* Return nothing.
*/
static void
_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
{
struct scsi_cmnd *scmd;
u16 smid;
u16 count = 0;
for (smid = 1; smid <= ioc->request_depth; smid++) {
scmd = _scsih_scsi_lookup_getclear(ioc, smid);
if (!scmd)
continue;
count++;
mpt2sas_base_free_smid(ioc, smid);
scsi_dma_unmap(scmd);
scmd->result = DID_RESET << 16;
scmd->scsi_done(scmd);
}
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
ioc->name, count));
}
/**
* mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
* @ioc: per adapter object
* @reset_phase: phase
*
* The handler for doing any required cleanup or initialization.
*
* The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
* MPT2_IOC_DONE_RESET
*
* Return nothing.
*/
void
mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
{
switch (reset_phase) {
case MPT2_IOC_PRE_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
_scsih_fw_event_off(ioc);
break;
case MPT2_IOC_AFTER_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
ioc->tm_cmds.status |= MPT2_CMD_RESET;
mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
complete(&ioc->tm_cmds.done);
}
_scsih_fw_event_on(ioc);
_scsih_flush_running_cmds(ioc);
break;
case MPT2_IOC_DONE_RESET:
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
"MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
_scsih_queue_rescan(ioc);
break;
}
}
/**
* _scsih_setup_eedp - setup MPI request for EEDP transfer
* @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 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);
if (prot_type == SCSI_PROT_DIF_TYPE0 ||
prot_type == SCSI_PROT_DIF_TYPE2 ||
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;
mpi_request->EEDPBlockSize = scmd->device->sector_size;
switch (prot_type) {
case SCSI_PROT_DIF_TYPE1:
/*
* enable ref/guard checking
* auto increment ref tag
*/
mpi_request->EEDPFlags = 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
*/
mpi_request->EEDPFlags = eedp_flags |
MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
break;
}
}
/**
* _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;
u8 sk;
u8 host_byte;
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;
}
if (scmd->sc_data_direction == DMA_TO_DEVICE) {
sk = ILLEGAL_REQUEST;
host_byte = DID_ABORT;
} else {
sk = ABORTED_COMMAND;
host_byte = DID_OK;
}
scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
scmd->result = DRIVER_SENSE << 24 | (host_byte << 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_cmnd *scmd, void (*done)(struct scsi_cmnd *))
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
struct MPT2SAS_TARGET *sas_target_priv_data;
Mpi2SCSIIORequest_t *mpi_request;
u32 mpi_control;
u16 smid;
unsigned long flags;
scmd->scsi_done = done;
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
sas_target_priv_data = sas_device_priv_data->sas_target;
if (!sas_target_priv_data || sas_target_priv_data->handle ==
MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
/* see if we are busy with task managment stuff */
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (sas_target_priv_data->tm_busy ||
ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
return SCSI_MLQUEUE_HOST_BUSY;
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
if (scmd->sc_data_direction == DMA_FROM_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_READ;
else if (scmd->sc_data_direction == DMA_TO_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
else
mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
/* set tags */
if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
if (scmd->device->tagged_supported) {
if (scmd->device->ordered_tags)
mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
else
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
} else
/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
*/
mpi_control |= (0x500);
} else
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
if (!smid) {
printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
goto out;
}
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
_scsih_setup_eedp(scmd, mpi_request);
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
else
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
mpi_request->DevHandle =
cpu_to_le16(sas_device_priv_data->sas_target->handle);
mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
mpi_request->Control = cpu_to_le32(mpi_control);
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
mpi_request->SenseBufferLowAddress =
(u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
mpi_request->LUN);
memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
if (!mpi_request->DataLength) {
mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
} else {
if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
mpt2sas_base_free_smid(ioc, smid);
goto out;
}
}
_scsih_scsi_lookup_set(ioc, smid, scmd);
mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
sas_device_priv_data->sas_target->handle);
return 0;
out:
return SCSI_MLQUEUE_HOST_BUSY;
}
/**
* _scsih_normalize_sense - normalize descriptor and fixed format sense data
* @sense_buffer: sense data returned by target
* @data: normalized skey/asc/ascq
*
* Return nothing.
*/
static void
_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
{
if ((sense_buffer[0] & 0x7F) >= 0x72) {
/* descriptor format */
data->skey = sense_buffer[1] & 0x0F;
data->asc = sense_buffer[2];
data->ascq = sense_buffer[3];
} else {
/* fixed format */
data->skey = sense_buffer[2] & 0x0F;
data->asc = sense_buffer[12];
data->ascq = sense_buffer[13];
}
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
* @ioc: per adapter object
* @scmd: pointer to scsi command object
* @mpi_reply: reply mf payload returned from firmware
*
* scsi_status - SCSI Status code returned from target device
* scsi_state - state info associated with SCSI_IO determined by ioc
* ioc_status - ioc supplied status info
*
* Return nothing.
*/
static void
_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
{
u32 response_info;
u8 *response_bytes;
u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
MPI2_IOCSTATUS_MASK;
u8 scsi_state = mpi_reply->SCSIState;
u8 scsi_status = mpi_reply->SCSIStatus;
char *desc_ioc_state = NULL;
char *desc_scsi_status = NULL;
char *desc_scsi_state = ioc->tmp_string;
switch (ioc_status) {
case MPI2_IOCSTATUS_SUCCESS:
desc_ioc_state = "success";
break;
case MPI2_IOCSTATUS_INVALID_FUNCTION:
desc_ioc_state = "invalid function";
break;
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
desc_ioc_state = "scsi recovered error";
break;
case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
desc_ioc_state = "scsi invalid dev handle";
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
desc_ioc_state = "scsi device not there";
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
desc_ioc_state = "scsi data overrun";
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
desc_ioc_state = "scsi data underrun";
break;
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
desc_ioc_state = "scsi io data error";
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
desc_ioc_state = "scsi protocol error";
break;
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
desc_ioc_state = "scsi task terminated";
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
desc_ioc_state = "scsi residual mismatch";
break;
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
desc_ioc_state = "scsi task mgmt failed";
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
desc_ioc_state = "scsi ioc terminated";
break;
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
desc_ioc_state = "scsi ext terminated";
break;
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);
printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
"ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
ioc_status, smid);
printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
"resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
scsi_get_resid(scmd));
printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
"sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
le32_to_cpu(mpi_reply->TransferCount), scmd->result);
printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
"scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
scsi_status, desc_scsi_state, scsi_state);
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
_scsih_normalize_sense(scmd->sense_buffer, &data);
printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
"[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
data.asc, data.ascq);
}
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
response_info = le32_to_cpu(mpi_reply->ResponseInfo);
response_bytes = (u8 *)&response_info;
_scsih_response_code(ioc, response_bytes[3]);
}
}
#endif
/**
* _scsih_smart_predicted_fault - illuminate Fault LED
* @ioc: per adapter object
* @handle: device handle
*
* Return nothing.
*/
static void
_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
struct scsi_target *starget;
struct MPT2SAS_TARGET *sas_target_priv_data;
Mpi2EventNotificationReply_t *event_reply;
Mpi2EventDataSasDeviceStatusChange_t *event_data;
struct _sas_device *sas_device;
ssize_t sz;
unsigned long flags;
/* only handle non-raid devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
starget_printk(KERN_WARNING, starget, "predicted fault\n");
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
mpi_request.SlotStatus =
MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
mpi_request.DevHandle = cpu_to_le16(handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
"enclosure_processor: ioc_status (0x%04x), "
"loginfo(0x%08x)\n", ioc->name,
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
return;
}
}
/* insert into event log */
sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
sizeof(Mpi2EventDataSasDeviceStatusChange_t);
event_reply = kzalloc(sz, GFP_KERNEL);
if (!event_reply) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
event_reply->Event =
cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
event_reply->MsgLength = sz/4;
event_reply->EventDataLength =
cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
event_reply->EventData;
event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
event_data->ASC = 0x5D;
event_data->DevHandle = cpu_to_le16(handle);
event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
mpt2sas_ctl_add_to_event_log(ioc, event_reply);
kfree(event_reply);
}
/**
* _scsih_io_done - scsi request callback
* @ioc: per adapter object
* @smid: system request message index
* @VF_ID: virtual function id
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when using scsih_qcmd.
*
* Return nothing.
*/
static void
_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
{
Mpi2SCSIIORequest_t *mpi_request;
Mpi2SCSIIOReply_t *mpi_reply;
struct scsi_cmnd *scmd;
u16 ioc_status;
u32 xfer_cnt;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
struct MPT2SAS_DEVICE *sas_device_priv_data;
u32 response_code;
mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
scmd = _scsih_scsi_lookup_getclear(ioc, smid);
if (scmd == NULL)
return;
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
if (mpi_reply == NULL) {
scmd->result = DID_OK << 16;
goto out;
}
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
sas_device_priv_data->sas_target->deleted) {
scmd->result = DID_NO_CONNECT << 16;
goto out;
}
/* turning off TLR */
if (!sas_device_priv_data->tlr_snoop_check) {
sas_device_priv_data->tlr_snoop_check++;
if (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) {
response_code = (le32_to_cpu(mpi_reply->ResponseInfo)
>> 24);
if (response_code ==
MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
sas_device_priv_data->flags &=
~MPT_DEVICE_TLR_ON;
}
}
xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
else
log_info = 0;
ioc_status &= MPI2_IOCSTATUS_MASK;
scsi_state = mpi_reply->SCSIState;
scsi_status = mpi_reply->SCSIStatus;
if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
(scsi_status == MPI2_SCSI_STATUS_BUSY ||
scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
ioc_status = MPI2_IOCSTATUS_SUCCESS;
}
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
smid);
u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
le32_to_cpu(mpi_reply->SenseCount));
memcpy(scmd->sense_buffer, sense_data, sz);
_scsih_normalize_sense(scmd->sense_buffer, &data);
/* failure prediction threshold exceeded */
if (data.asc == 0x5D)
_scsih_smart_predicted_fault(ioc,
le16_to_cpu(mpi_reply->DevHandle));
}
switch (ioc_status) {
case MPI2_IOCSTATUS_BUSY:
case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
scmd->result = SAM_STAT_BUSY;
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
scmd->result = DID_NO_CONNECT << 16;
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
if (sas_device_priv_data->block) {
scmd->result = (DID_BUS_BUSY << 16);
break;
}
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
scmd->result = DID_SOFT_ERROR << 16;
else
scmd->result = (DID_OK << 16) | scsi_status;
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
scmd->result = (DID_OK << 16) | scsi_status;
if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
break;
if (xfer_cnt < scmd->underflow) {
if (scsi_status == SAM_STAT_BUSY)
scmd->result = SAM_STAT_BUSY;
else
scmd->result = DID_SOFT_ERROR << 16;
} else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
scmd->result = (DRIVER_SENSE << 24) |
SAM_STAT_CHECK_CONDITION;
scmd->sense_buffer[0] = 0x70;
scmd->sense_buffer[2] = ILLEGAL_REQUEST;
scmd->sense_buffer[12] = 0x20;
scmd->sense_buffer[13] = 0;
}
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
scsi_set_resid(scmd, 0);
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
case MPI2_IOCSTATUS_SUCCESS:
scmd->result = (DID_OK << 16) | scsi_status;
if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_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_MPT2SAS_LOGGING
if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
_scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
#endif
out:
scsi_dma_unmap(scmd);
scmd->scsi_done(scmd);
}
/**
* _scsih_link_change - process phy link changes
* @ioc: per adapter object
* @handle: phy handle
* @attached_handle: valid for devices attached to link
* @phy_number: phy number
* @link_rate: new link rate
* Context: user.
*
* Return nothing.
*/
static void
_scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
u8 phy_number, u8 link_rate)
{
mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
phy_number, link_rate);
}
/**
* _scsih_sas_host_refresh - refreshing sas host object contents
* @ioc: per adapter object
* @update: update link information
* Context: user
*
* During port enable, fw will send topology events for every device. Its
* possible that the handles may change from the previous setting, so this
* code keeping handles updating if changed.
*
* Return nothing.
*/
static void
_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
{
u16 sz;
u16 ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
"updating handles for sas_host(0x%016llx)\n",
ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
* sizeof(Mpi2SasIOUnit0PhyData_t));
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
goto out;
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
ioc->sas_hba.phy[i].handle =
le16_to_cpu(sas_iounit_pg0->PhyData[i].
ControllerDevHandle);
if (update)
_scsih_link_change(ioc,
ioc->sas_hba.phy[i].handle,
le16_to_cpu(sas_iounit_pg0->PhyData[i].
AttachedDevHandle), i,
sas_iounit_pg0->PhyData[i].
NegotiatedLinkRate >> 4);
}
}
out:
kfree(sas_iounit_pg0);
}
/**
* _scsih_sas_host_add - create sas host object
* @ioc: per adapter object
*
* Creating host side data object, stored in ioc->sas_hba
*
* Return nothing.
*/
static void
_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
{
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
Mpi2SasPhyPage0_t phy_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2SasEnclosurePage0_t enclosure_pg0;
u16 ioc_status;
u16 sz;
u16 device_missing_delay;
mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
if (!ioc->sas_hba.num_phys) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
/* sas_iounit page 0 */
sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
sizeof(Mpi2SasIOUnit0PhyData_t));
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
/* sas_iounit page 1 */
sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
sizeof(Mpi2SasIOUnit1PhyData_t));
sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg1) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
sas_iounit_pg1, sz))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->io_missing_delay =
le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
device_missing_delay =
le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
ioc->device_missing_delay = (device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
else
ioc->device_missing_delay = device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!ioc->sas_hba.phy) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
i))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.phy[i].handle =
le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
ioc->sas_hba.phy[i].phy_id = i;
mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
phy_pg0, ioc->sas_hba.parent_dev);
}
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
ioc->sas_hba.enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
"sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
(unsigned long long) ioc->sas_hba.sas_address,
ioc->sas_hba.num_phys) ;
if (ioc->sas_hba.enclosure_handle) {
if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
ioc->sas_hba.enclosure_handle))) {
ioc->sas_hba.enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
}
out:
kfree(sas_iounit_pg1);
kfree(sas_iounit_pg0);
}
/**
* _scsih_expander_add - creating expander object
* @ioc: per adapter object
* @handle: expander handle
*
* Creating expander object, stored in ioc->sas_expander_list.
*
* Return 0 for success, else error.
*/
static int
_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander;
Mpi2ConfigReply_t mpi_reply;
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ExpanderPage1_t expander_pg1;
Mpi2SasEnclosurePage0_t enclosure_pg0;
u32 ioc_status;
u16 parent_handle;
__le64 sas_address;
int i;
unsigned long flags;
struct _sas_port *mpt2sas_port;
int rc = 0;
if (!handle)
return -1;
if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
/* handle out of order topology events */
parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
if (parent_handle >= ioc->sas_hba.num_phys) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
parent_handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_expander) {
rc = _scsih_expander_add(ioc, parent_handle);
if (rc != 0)
return rc;
}
}
sas_address = le64_to_cpu(expander_pg0.SASAddress);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
return 0;
sas_expander = kzalloc(sizeof(struct _sas_node),
GFP_KERNEL);
if (!sas_expander) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
sas_expander->handle = handle;
sas_expander->num_phys = expander_pg0.NumPhys;
sas_expander->parent_handle = parent_handle;
sas_expander->enclosure_handle =
le16_to_cpu(expander_pg0.EnclosureHandle);
sas_expander->sas_address = sas_address;
printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
" parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
handle, sas_expander->parent_handle, (unsigned long long)
sas_expander->sas_address, sas_expander->num_phys);
if (!sas_expander->num_phys)
goto out_fail;
sas_expander->phy = kcalloc(sas_expander->num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!sas_expander->phy) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
INIT_LIST_HEAD(&sas_expander->sas_port_list);
mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
sas_expander->parent_handle);
if (!mpt2sas_port) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
continue;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i],
expander_pg1, sas_expander->parent_dev);
}
if (sas_expander->enclosure_handle) {
if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
sas_expander->enclosure_handle))) {
sas_expander->enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
}
_scsih_expander_node_add(ioc, sas_expander);
return 0;
out_fail:
if (sas_expander)
kfree(sas_expander->phy);
kfree(sas_expander);
return rc;
}
/**
* _scsih_expander_remove - removing expander object
* @ioc: per adapter object
* @handle: expander handle
*
* Return nothing.
*/
static void
_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
_scsih_expander_node_remove(ioc, sas_expander);
}
/**
* _scsih_add_device - creating sas device object
* @ioc: per adapter object
* @handle: sas device handle
* @phy_num: phy number end device attached to
* @is_pd: is this hidden raid component
*
* Creating end device object, stored in ioc->sas_device_list.
*
* Returns 0 for success, non-zero for failure.
*/
static int
_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2SasEnclosurePage0_t enclosure_pg0;
struct _sas_device *sas_device;
u32 ioc_status;
__le64 sas_address;
u32 device_info;
unsigned long flags;
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
ioc->name, le16_to_cpu(sas_device_pg0.Flags));
return -1;
}
/* check if there were any issus with discovery */
if (sas_device_pg0.AccessStatus ==
MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
ioc->name, sas_device_pg0.AccessStatus);
return -1;
}
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
_scsih_ublock_io_device(ioc, handle);
return 0;
}
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
if (!sas_device) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return -1;
}
sas_device->handle = handle;
sas_device->parent_handle =
le16_to_cpu(sas_device_pg0.ParentDevHandle);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
sas_device->slot =
le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->hidden_raid_component = is_pd;
/* get enclosure_logical_id */
if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply, &enclosure_pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
sas_device->enclosure_handle))) {
sas_device->enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
/* get device name */
sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
if (ioc->wait_for_port_enable_to_complete)
_scsih_sas_device_init_add(ioc, sas_device);
else
_scsih_sas_device_add(ioc, sas_device);
return 0;
}
/**
* _scsih_remove_device - removing sas device object
* @ioc: per adapter object
* @handle: sas device handle
*
* Return nothing.
*/
static void
_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
Mpi2SasIoUnitControlReply_t mpi_reply;
Mpi2SasIoUnitControlRequest_t mpi_request;
u16 device_handle;
/* lookup sas_device */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
"(0x%04x)\n", ioc->name, __func__, handle));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->remove_host)
goto out;
/* Target Reset to flush out all the outstanding IO */
device_handle = (sas_device->hidden_raid_component) ?
sas_device->volume_handle : handle;
if (device_handle) {
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
"handle(0x%04x)\n", ioc->name, device_handle));
mutex_lock(&ioc->tm_cmds.mutex);
mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->tm_cmds.mutex);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
"done: handle(0x%04x)\n", ioc->name, device_handle));
}
/* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
"(0x%04x)\n", ioc->name, handle));
memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request.DevHandle = handle;
mpi_request.VF_ID = 0;
if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
&mpi_request)) != 0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
}
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
"(0x%04x), loginfo(0x%08x)\n", ioc->name,
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
out:
mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
sas_device->parent_handle);
printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
"(0x%016llx)\n", ioc->name, sas_device->handle,
(unsigned long long) sas_device->sas_address);
_scsih_sas_device_remove(ioc, sas_device);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
"(0x%04x)\n", ioc->name, __func__, handle));
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_topology_change_event_debug - debug for topology event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
char *status_str = NULL;
char link_rate[25];
switch (event_data->ExpStatus) {
case MPI2_EVENT_SAS_TOPO_ES_ADDED:
status_str = "add";
break;
case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
status_str = "remove";
break;
case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
status_str = "responding";
break;
case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
ioc->name, status_str);
printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
"start_phy(%02d), count(%d)\n",
le16_to_cpu(event_data->ExpanderDevHandle),
le16_to_cpu(event_data->EnclosureHandle),
event_data->StartPhyNum, event_data->NumEntries);
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
snprintf(link_rate, 25, ": add, link(0x%02x)",
(event_data->PHY[i].LinkRate >> 4));
status_str = link_rate;
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
status_str = ": remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
status_str = ": remove_delay";
break;
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
snprintf(link_rate, 25, ": link(0x%02x)",
(event_data->PHY[i].LinkRate >> 4));
status_str = link_rate;
break;
case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
status_str = ": responding";
break;
default:
status_str = ": unknown";
break;
}
printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
phy_number, handle, status_str);
}
}
#endif
/**
* _scsih_sas_topology_change_event - handle topology changes
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* fw_event:
* Context: user.
*
*/
static void
_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasTopologyChangeList_t *event_data,
struct fw_event_work *fw_event)
{
int i;
u16 parent_handle, handle;
u16 reason_code;
u8 phy_number;
struct _sas_node *sas_expander;
unsigned long flags;
u8 link_rate_;
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_topology_change_event_debug(ioc, event_data);
#endif
if (!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
else
_scsih_sas_host_refresh(ioc, 0);
if (fw_event->ignore) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
"event\n", ioc->name));
return;
}
parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
/* handle expander add */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
if (_scsih_expander_add(ioc, parent_handle) != 0)
return;
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
"expander event\n", ioc->name));
return;
}
if (event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
continue;
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
link_rate_ = event_data->PHY[i].LinkRate >> 4;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
if (!parent_handle) {
if (phy_number < ioc->sas_hba.num_phys)
_scsih_link_change(ioc,
ioc->sas_hba.phy[phy_number].handle,
handle, phy_number, link_rate_);
} else {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander =
mpt2sas_scsih_expander_find_by_handle(ioc,
parent_handle);
spin_unlock_irqrestore(&ioc->sas_node_lock,
flags);
if (sas_expander) {
if (phy_number < sas_expander->num_phys)
_scsih_link_change(ioc,
sas_expander->
phy[phy_number].handle,
handle, phy_number,
link_rate_);
}
}
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
_scsih_ublock_io_device(ioc, handle);
}
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
break;
_scsih_add_device(ioc, handle, phy_number, 0);
}
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
_scsih_remove_device(ioc, handle);
break;
}
}
/* handle expander removal */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
_scsih_expander_remove(ioc, parent_handle);
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_device_status_change_event_debug - debug for device event
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
reason_str = "smart data";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
reason_str = "unsupported device discovered";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
reason_str = "internal device reset";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
reason_str = "internal task abort";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
reason_str = "internal task abort set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
reason_str = "internal clear task set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
reason_str = "internal query task";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
reason_str = "sata init failure";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
reason_str = "internal device reset complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
reason_str = "internal task abort complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
reason_str = "internal async notification";
break;
default:
reason_str = "unknown reason";
break;
}
printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
"\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
reason_str, le16_to_cpu(event_data->DevHandle),
(unsigned long long)le64_to_cpu(event_data->SASAddress));
if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
event_data->ASC, event_data->ASCQ);
printk(KERN_INFO "\n");
}
#endif
/**
* _scsih_sas_device_status_change_event - handle device status change
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_device_status_change_event_debug(ioc, event_data);
#endif
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_ENCL_RC_ADDED:
reason_str = "enclosure add";
break;
case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
reason_str = "enclosure remove";
break;
default:
reason_str = "unknown reason";
break;
}
printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
"\thandle(0x%04x), enclosure logical id(0x%016llx)"
" number slots(%d)\n", ioc->name, reason_str,
le16_to_cpu(event_data->EnclosureHandle),
(unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
le16_to_cpu(event_data->StartSlot));
}
#endif
/**
* _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
event_data);
#endif
}
/**
* _scsih_sas_broadcast_primative_event - handle broadcast events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasBroadcastPrimitive_t *event_data)
{
struct scsi_cmnd *scmd;
u16 smid, handle;
u32 lun;
struct MPT2SAS_DEVICE *sas_device_priv_data;
u32 termination_count;
u32 query_count;
Mpi2SCSITaskManagementReply_t *mpi_reply;
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
"phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
event_data->PortWidth));
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
__func__));
mutex_lock(&ioc->tm_cmds.mutex);
termination_count = 0;
query_count = 0;
mpi_reply = ioc->tm_cmds.reply;
for (smid = 1; smid <= ioc->request_depth; smid++) {
scmd = _scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
continue;
/* skip hidden raid components */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
continue;
/* skip volumes */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_VOLUME)
continue;
handle = sas_device_priv_data->sas_target->handle;
lun = sas_device_priv_data->lun;
query_count++;
mpt2sas_scsih_issue_tm(ioc, handle, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
(mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
continue;
mpt2sas_scsih_issue_tm(ioc, handle, lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
}
ioc->broadcast_aen_busy = 0;
mutex_unlock(&ioc->tm_cmds.mutex);
dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
"%s - exit, query_count = %d termination_count = %d\n",
ioc->name, __func__, query_count, termination_count));
}
/**
* _scsih_sas_discovery_event - handle discovery events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataSasDiscovery_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
(event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
"start" : "stop");
if (event_data->DiscoveryStatus)
printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
printk("\n");
}
#endif
if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
}
/**
* _scsih_reprobe_lun - reprobing lun
* @sdev: scsi device struct
* @no_uld_attach: sdev->no_uld_attach flag setting
*
**/
static void
_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
{
int rc;
sdev->no_uld_attach = no_uld_attach ? 1 : 0;
sdev_printk(KERN_INFO, sdev, "%s raid component\n",
sdev->no_uld_attach ? "hidding" : "exposing");
rc = scsi_device_reprobe(sdev);
}
/**
* _scsih_reprobe_target - reprobing target
* @starget: scsi target struct
* @no_uld_attach: sdev->no_uld_attach flag setting
*
* Note: no_uld_attach flag determines whether the disk device is attached
* to block layer. A value of `1` means to not attach.
**/
static void
_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
{
struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
if (no_uld_attach)
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
else
sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
_scsih_reprobe_lun);
}
/**
* _scsih_sas_volume_add - add new volume
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
unsigned long flags;
u64 wwid;
u16 handle = le16_to_cpu(element->VolDevHandle);
int rc;
#if 0 /* RAID_HACKS */
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
return;
#endif
mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
return;
}
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
return;
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
return;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
if (!ioc->wait_for_port_enable_to_complete) {
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else
_scsih_determine_boot_device(ioc, raid_device, 1);
}
/**
* _scsih_sas_volume_delete - delete volume
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
u16 handle = le16_to_cpu(element->VolDevHandle);
unsigned long flags;
struct MPT2SAS_TARGET *sas_target_priv_data;
#if 0 /* RAID_HACKS */
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
return;
#endif
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device)
return;
if (raid_device->starget) {
sas_target_priv_data = raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
scsi_remove_target(&raid_device->starget->dev);
}
_scsih_raid_device_remove(ioc, raid_device);
}
/**
* _scsih_sas_pd_expose - expose pd component to /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* exposing raid component */
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
sas_device->hidden_raid_component = 0;
_scsih_reprobe_target(sas_device->starget, 0);
}
/**
* _scsih_sas_pd_hide - hide pd component from /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* hiding raid component */
mpt2sas_config_get_volume_handle(ioc, handle,
&sas_device->volume_handle);
mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
&sas_device->volume_wwid);
sas_device->hidden_raid_component = 1;
_scsih_reprobe_target(sas_device->starget, 1);
}
/**
* _scsih_sas_pd_delete - delete pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
_scsih_remove_device(ioc, handle);
}
/**
* _scsih_sas_pd_add - remove pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
sas_device->hidden_raid_component = 1;
else
_scsih_add_device(ioc, handle, 0, 1);
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
u8 element_type;
int i;
char *reason_str = NULL, *element_str = NULL;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
ioc->name, (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
"foreign" : "native", event_data->NumElements);
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
reason_str = "add";
break;
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
reason_str = "remove";
break;
case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
reason_str = "no change";
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
reason_str = "hide";
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
reason_str = "unhide";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
reason_str = "volume_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
reason_str = "volume_deleted";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
reason_str = "pd_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
reason_str = "pd_deleted";
break;
default:
reason_str = "unknown reason";
break;
}
element_type = le16_to_cpu(element->ElementFlags) &
MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
switch (element_type) {
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
element_str = "volume";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
element_str = "phys disk";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
element_str = "hot spare";
break;
default:
element_str = "unknown element";
break;
}
printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
"pd handle(0x%04x), pd num(0x%02x)\n", element_str,
reason_str, le16_to_cpu(element->VolDevHandle),
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
}
#endif
/**
* _scsih_sas_ir_config_change_event - handle ir configuration change events
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
int i;
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_config_change_event_debug(ioc, event_data);
#endif
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
_scsih_sas_volume_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
_scsih_sas_volume_delete(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
_scsih_sas_pd_hide(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
_scsih_sas_pd_expose(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
_scsih_sas_pd_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
_scsih_sas_pd_delete(ioc, element);
break;
}
}
}
/**
* _scsih_sas_ir_volume_event - IR volume event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrVolume_t *event_data)
{
u64 wwid;
unsigned long flags;
struct _raid_device *raid_device;
u16 handle;
u32 state;
int rc;
struct MPT2SAS_TARGET *sas_target_priv_data;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->VolDevHandle);
state = le32_to_cpu(event_data->NewValue);
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
"old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
le32_to_cpu(event_data->PreviousValue), state));
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
switch (state) {
case MPI2_RAID_VOL_STATE_MISSING:
case MPI2_RAID_VOL_STATE_FAILED:
if (!raid_device)
break;
if (raid_device->starget) {
sas_target_priv_data = raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
scsi_remove_target(&raid_device->starget->dev);
}
_scsih_raid_device_remove(ioc, raid_device);
break;
case MPI2_RAID_VOL_STATE_ONLINE:
case MPI2_RAID_VOL_STATE_DEGRADED:
case MPI2_RAID_VOL_STATE_OPTIMAL:
if (raid_device)
break;
mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
break;
}
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
printk(MPT2SAS_ERR_FMT
"failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
break;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
break;
case MPI2_RAID_VOL_STATE_INITIALIZING:
default:
break;
}
}
/**
* _scsih_sas_ir_physical_disk_event - PD event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrPhysicalDisk_t *event_data)
{
u16 handle;
u32 state;
struct _sas_device *sas_device;
unsigned long flags;
if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->PhysDiskDevHandle);
state = le32_to_cpu(event_data->NewValue);
dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
"old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
le32_to_cpu(event_data->PreviousValue), state));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
switch (state) {
#if 0
case MPI2_RAID_PD_STATE_OFFLINE:
if (sas_device)
_scsih_remove_device(ioc, handle);
break;
#endif
case MPI2_RAID_PD_STATE_ONLINE:
case MPI2_RAID_PD_STATE_DEGRADED:
case MPI2_RAID_PD_STATE_REBUILDING:
case MPI2_RAID_PD_STATE_OPTIMAL:
if (sas_device)
sas_device->hidden_raid_component = 1;
else
_scsih_add_device(ioc, handle, 0, 1);
break;
case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
case MPI2_RAID_PD_STATE_HOT_SPARE:
default:
break;
}
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _scsih_sas_ir_operation_status_event_debug - debug for IR op event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataIrOperationStatus_t *event_data)
{
char *reason_str = NULL;
switch (event_data->RAIDOperation) {
case MPI2_EVENT_IR_RAIDOP_RESYNC:
reason_str = "resync";
break;
case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
reason_str = "online capacity expansion";
break;
case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
reason_str = "consistency check";
break;
default:
reason_str = "unknown reason";
break;
}
printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
"\thandle(0x%04x), percent complete(%d)\n",
ioc->name, reason_str,
le16_to_cpu(event_data->VolDevHandle),
event_data->PercentComplete);
}
#endif
/**
* _scsih_sas_ir_operation_status_event - handle RAID operation events
* @ioc: per adapter object
* @VF_ID:
* @event_data: event data payload
* Context: user.
*
* Return nothing.
*/
static void
_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataIrOperationStatus_t *event_data)
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_ir_operation_status_event_debug(ioc, event_data);
#endif
}
/**
* _scsih_task_set_full - handle task set full
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*
* Throttle back qdepth.
*/
static void
_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
Mpi2EventDataTaskSetFull_t *event_data)
{
unsigned long flags;
struct _sas_device *sas_device;
static struct _raid_device *raid_device;
struct scsi_device *sdev;
int depth;
u16 current_depth;
u16 handle;
int id, channel;
u64 sas_address;
current_depth = le16_to_cpu(event_data->CurrentDepth);
handle = le16_to_cpu(event_data->DevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
id = sas_device->id;
channel = sas_device->channel;
sas_address = sas_device->sas_address;
/* if hidden raid component, then change to volume characteristics */
if (sas_device->hidden_raid_component && sas_device->volume_handle) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_handle(
ioc, sas_device->volume_handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device) {
id = raid_device->id;
channel = raid_device->channel;
handle = raid_device->handle;
sas_address = raid_device->wwid;
}
}
if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
starget_printk(KERN_DEBUG, sas_device->starget, "task set "
"full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
handle, (unsigned long long)sas_address, current_depth);
shost_for_each_device(sdev, ioc->shost) {
if (sdev->id == id && sdev->channel == channel) {
if (current_depth > sdev->queue_depth) {
if (ioc->logging_level &
MPT_DEBUG_TASK_SET_FULL)
sdev_printk(KERN_INFO, sdev, "strange "
"observation, the queue depth is"
" (%d) meanwhile fw queue depth "
"is (%d)\n", sdev->queue_depth,
current_depth);
continue;
}
depth = scsi_track_queue_full(sdev,
current_depth - 1);
if (depth > 0)
sdev_printk(KERN_INFO, sdev, "Queue depth "
"reduced to (%d)\n", depth);
else if (depth < 0)
sdev_printk(KERN_INFO, sdev, "Tagged Command "
"Queueing is being disabled\n");
else if (depth == 0)
if (ioc->logging_level &
MPT_DEBUG_TASK_SET_FULL)
sdev_printk(KERN_INFO, sdev,
"Queue depth not changed yet\n");
}
}
}
/**
* _scsih_mark_responding_sas_device - mark a sas_devices as responding
* @ioc: per adapter object
* @sas_address: sas address
* @slot: enclosure slot id
* @handle: device handle
*
* After host reset, find out whether devices are still responding.
* Used in _scsi_remove_unresponsive_sas_devices.
*
* Return nothing.
*/
static void
_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
u16 slot, u16 handle)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct _sas_device *sas_device;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->sas_address == sas_address &&
sas_device->slot == slot && sas_device->starget) {
sas_device->responding = 1;
starget_printk(KERN_INFO, sas_device->starget,
"handle(0x%04x), sas_addr(0x%016llx), enclosure "
"logical id(0x%016llx), slot(%d)\n", handle,
(unsigned long long)sas_device->sas_address,
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->handle == handle)
goto out;
printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
sas_device->handle = handle;
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->handle = handle;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_search_responding_sas_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*
* Return nothing.
*/
static void
_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
__le64 sas_address;
u16 handle;
u32 device_info;
u16 slot;
printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
if (list_empty(&ioc->sas_device_list))
return;
handle = 0xFFFF;
while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
break;
handle = le16_to_cpu(sas_device_pg0.DevHandle);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
continue;
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
slot = le16_to_cpu(sas_device_pg0.Slot);
_scsih_mark_responding_sas_device(ioc, sas_address, slot,
handle);
}
}
/**
* _scsih_mark_responding_raid_device - mark a raid_device as responding
* @ioc: per adapter object
* @wwid: world wide identifier for raid volume
* @handle: device handle
*
* After host reset, find out whether devices are still responding.
* Used in _scsi_remove_unresponsive_raid_devices.
*
* Return nothing.
*/
static void
_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
u16 handle)
{
struct MPT2SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct _raid_device *raid_device;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid == wwid && raid_device->starget) {
raid_device->responding = 1;
starget_printk(KERN_INFO, raid_device->starget,
"handle(0x%04x), wwid(0x%016llx)\n", handle,
(unsigned long long)raid_device->wwid);
if (raid_device->handle == handle)
goto out;
printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
raid_device->handle);
raid_device->handle = handle;
starget = raid_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->handle = handle;
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_search_responding_raid_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*
* Return nothing.
*/
static void
_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
{
Mpi2RaidVolPage1_t volume_pg1;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
if (list_empty(&ioc->raid_device_list))
return;
handle = 0xFFFF;
while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
break;
handle = le16_to_cpu(volume_pg1.DevHandle);
_scsih_mark_responding_raid_device(ioc,
le64_to_cpu(volume_pg1.WWID), handle);
}
}
/**
* _scsih_mark_responding_expander - mark a expander as responding
* @ioc: per adapter object
* @sas_address: sas address
* @handle:
*
* After host reset, find out whether devices are still responding.
* Used in _scsi_remove_unresponsive_expanders.
*
* Return nothing.
*/
static void
_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
u16 handle)
{
struct _sas_node *sas_expander;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address == sas_address) {
sas_expander->responding = 1;
if (sas_expander->handle != handle) {
printk(KERN_INFO "old handle(0x%04x)\n",
sas_expander->handle);
sas_expander->handle = handle;
}
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_search_responding_expanders -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*
* Return nothing.
*/
static void
_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
__le64 sas_address;
u16 handle;
printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
if (list_empty(&ioc->sas_expander_list))
return;
handle = 0xFFFF;
while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
break;
handle = le16_to_cpu(expander_pg0.DevHandle);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
printk(KERN_INFO "\texpander present: handle(0x%04x), "
"sas_addr(0x%016llx)\n", handle,
(unsigned long long)sas_address);
_scsih_mark_responding_expander(ioc, sas_address, handle);
}
}
/**
* _scsih_remove_unresponding_devices - removing unresponding devices
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *sas_device_next;
struct _sas_node *sas_expander, *sas_expander_next;
struct _raid_device *raid_device, *raid_device_next;
unsigned long flags;
_scsih_search_responding_sas_devices(ioc);
_scsih_search_responding_raid_devices(ioc);
_scsih_search_responding_expanders(ioc);
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
ioc->shost_recovery = 0;
if (ioc->shost->shost_state == SHOST_RECOVERY) {
printk(MPT2SAS_INFO_FMT "putting controller into "
"SHOST_RUNNING\n", ioc->name);
scsi_host_set_state(ioc->shost, SHOST_RUNNING);
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_list, list) {
if (sas_device->responding) {
sas_device->responding = 0;
continue;
}
if (sas_device->starget)
starget_printk(KERN_INFO, sas_device->starget,
"removing: handle(0x%04x), sas_addr(0x%016llx), "
"enclosure logical id(0x%016llx), slot(%d)\n",
sas_device->handle,
(unsigned long long)sas_device->sas_address,
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
_scsih_remove_device(ioc, sas_device->handle);
}
list_for_each_entry_safe(raid_device, raid_device_next,
&ioc->raid_device_list, list) {
if (raid_device->responding) {
raid_device->responding = 0;
continue;
}
if (raid_device->starget) {
starget_printk(KERN_INFO, raid_device->starget,
"removing: handle(0x%04x), wwid(0x%016llx)\n",
raid_device->handle,
(unsigned long long)raid_device->wwid);
scsi_remove_target(&raid_device->starget->dev);
}
_scsih_raid_device_remove(ioc, raid_device);
}
list_for_each_entry_safe(sas_expander, sas_expander_next,
&ioc->sas_expander_list, list) {
if (sas_expander->responding) {
sas_expander->responding = 0;
continue;
}
printk("\tremoving expander: handle(0x%04x), "
" sas_addr(0x%016llx)\n", sas_expander->handle,
(unsigned long long)sas_expander->sas_address);
_scsih_expander_remove(ioc, sas_expander->handle);
}
}
/**
* _firmware_event_work - delayed task for processing firmware events
* @ioc: per adapter object
* @work: equal to the fw_event_work object
* Context: user.
*
* Return nothing.
*/
static void
_firmware_event_work(struct work_struct *work)
{
struct fw_event_work *fw_event = container_of(work,
struct fw_event_work, work);
unsigned long flags;
struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
/* This is invoked by calling _scsih_queue_rescan(). */
if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
_scsih_fw_event_free(ioc, fw_event);
_scsih_sas_host_refresh(ioc, 1);
_scsih_remove_unresponding_devices(ioc);
return;
}
/* the queue is being flushed so ignore this event */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (ioc->fw_events_off || ioc->remove_host) {
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
_scsih_fw_event_free(ioc, fw_event);
return;
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (ioc->shost_recovery) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
_scsih_fw_event_requeue(ioc, fw_event, 1000);
return;
}
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
switch (fw_event->event) {
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
fw_event->event_data, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
_scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_SAS_DISCOVERY:
_scsih_sas_discovery_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
_scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
_scsih_sas_enclosure_dev_status_change_event(ioc,
fw_event->VF_ID, fw_event->event_data);
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_IR_PHYSICAL_DISK:
_scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
_scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
case MPI2_EVENT_TASK_SET_FULL:
_scsih_task_set_full(ioc, fw_event->VF_ID,
fw_event->event_data);
break;
}
_scsih_fw_event_free(ioc, fw_event);
}
/**
* mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
* @ioc: per adapter object
* @VF_ID: virtual function id
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt.
*
* This function merely adds a new work task into ioc->firmware_event_thread.
* The tasks are worked from _firmware_event_work in user context.
*
* Return nothing.
*/
void
mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
{
struct fw_event_work *fw_event;
Mpi2EventNotificationReply_t *mpi_reply;
unsigned long flags;
u16 event;
/* events turned off due to host reset or driver unloading */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (ioc->fw_events_off || ioc->remove_host) {
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
return;
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
event = le16_to_cpu(mpi_reply->Event);
switch (event) {
/* handle these */
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
{
Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
mpi_reply->EventData;
if (baen_data->Primitive !=
MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
ioc->broadcast_aen_busy)
return;
ioc->broadcast_aen_busy = 1;
break;
}
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_check_topo_delete_events(ioc,
(Mpi2EventDataSasTopologyChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
case MPI2_EVENT_IR_OPERATION_STATUS:
case MPI2_EVENT_SAS_DISCOVERY:
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
case MPI2_EVENT_IR_VOLUME:
case MPI2_EVENT_IR_PHYSICAL_DISK:
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
case MPI2_EVENT_TASK_SET_FULL:
break;
default: /* ignore the rest */
return;
}
fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
if (!fw_event) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
return;
}
fw_event->event_data =
kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
if (!fw_event->event_data) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
kfree(fw_event);
return;
}
memcpy(fw_event->event_data, mpi_reply->EventData,
mpi_reply->EventDataLength*4);
fw_event->ioc = ioc;
fw_event->VF_ID = VF_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
}
/* shost template */
static struct scsi_host_template scsih_driver_template = {
.module = THIS_MODULE,
.name = "Fusion MPT SAS Host",
.proc_name = MPT2SAS_DRIVER_NAME,
.queuecommand = _scsih_qcmd,
.target_alloc = _scsih_target_alloc,
.slave_alloc = _scsih_slave_alloc,
.slave_configure = _scsih_slave_configure,
.target_destroy = _scsih_target_destroy,
.slave_destroy = _scsih_slave_destroy,
.change_queue_depth = _scsih_change_queue_depth,
.change_queue_type = _scsih_change_queue_type,
.eh_abort_handler = _scsih_abort,
.eh_device_reset_handler = _scsih_dev_reset,
.eh_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 = MPT2SAS_SG_DEPTH,
.max_sectors = 8192,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mpt2sas_host_attrs,
.sdev_attrs = mpt2sas_dev_attrs,
};
/**
* _scsih_expander_node_remove - removing expander device from list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
* Context: Calling function should acquire ioc->sas_node_lock.
*
* Removing object and freeing associated memory from the
* ioc->sas_expander_list.
*
* Return nothing.
*/
static void
_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
/* remove sibling ports attached to this expander */
retry_device_search:
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device =
mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
continue;
_scsih_remove_device(ioc, sas_device->handle);
goto retry_device_search;
}
}
retry_expander_search:
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
mpt2sas_port->remote_identify.device_type ==
MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
expander_sibling =
mpt2sas_scsih_expander_find_by_sas_address(
ioc, mpt2sas_port->remote_identify.sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!expander_sibling)
continue;
_scsih_expander_remove(ioc, expander_sibling->handle);
goto retry_expander_search;
}
}
mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_expander->parent_handle);
printk(MPT2SAS_INFO_FMT "expander_remove: handle"
"(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
sas_expander->handle, (unsigned long long)
sas_expander->sas_address);
list_del(&sas_expander->list);
kfree(sas_expander->phy);
kfree(sas_expander);
}
/**
* _scsih_remove - detach and remove add host
* @pdev: PCI device struct
*
* Return nothing.
*/
static void __devexit
_scsih_remove(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
struct _sas_port *mpt2sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
struct workqueue_struct *wq;
unsigned long flags;
ioc->remove_host = 1;
_scsih_fw_event_off(ioc);
spin_lock_irqsave(&ioc->fw_event_lock, flags);
wq = ioc->firmware_event_thread;
ioc->firmware_event_thread = NULL;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
/* free ports attached to the sas_host */
retry_again:
list_for_each_entry(mpt2sas_port,
&ioc->sas_hba.sas_port_list, port_list) {
if (mpt2sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
sas_device =
mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
if (sas_device) {
_scsih_remove_device(ioc, sas_device->handle);
goto retry_again;
}
} else {
expander_sibling =
mpt2sas_scsih_expander_find_by_sas_address(ioc,
mpt2sas_port->remote_identify.sas_address);
if (expander_sibling) {
_scsih_expander_remove(ioc,
expander_sibling->handle);
goto retry_again;
}
}
}
/* free phys attached to the sas_host */
if (ioc->sas_hba.num_phys) {
kfree(ioc->sas_hba.phy);
ioc->sas_hba.phy = NULL;
ioc->sas_hba.num_phys = 0;
}
sas_remove_host(shost);
mpt2sas_base_detach(ioc);
list_del(&ioc->list);
scsi_remove_host(shost);
scsi_host_put(shost);
}
/**
* _scsih_probe_boot_devices - reports 1st device
* @ioc: per adapter object
*
* If specified in bios page 2, this routine reports the 1st
* device scsi-ml or sas transport for persistent boot device
* purposes. Please refer to function _scsih_determine_boot_device()
*/
static void
_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
{
u8 is_raid;
void *device;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
u16 handle, parent_handle;
u64 sas_address;
unsigned long flags;
int rc;
device = NULL;
if (ioc->req_boot_device.device) {
device = ioc->req_boot_device.device;
is_raid = ioc->req_boot_device.is_raid;
} else if (ioc->req_alt_boot_device.device) {
device = ioc->req_alt_boot_device.device;
is_raid = ioc->req_alt_boot_device.is_raid;
} else if (ioc->current_boot_device.device) {
device = ioc->current_boot_device.device;
is_raid = ioc->current_boot_device.is_raid;
}
if (!device)
return;
if (is_raid) {
raid_device = device;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else {
sas_device = device;
handle = sas_device->handle;
parent_handle = sas_device->parent_handle;
sas_address = sas_device->sas_address;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
sas_device->parent_handle)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
mpt2sas_transport_port_remove(ioc, sas_address,
parent_handle);
_scsih_sas_device_remove(ioc, sas_device);
}
}
}
/**
* _scsih_probe_raid - reporting raid volumes to scsi-ml
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
{
struct _raid_device *raid_device, *raid_next;
int rc;
list_for_each_entry_safe(raid_device, raid_next,
&ioc->raid_device_list, list) {
if (raid_device->starget)
continue;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
}
}
/**
* _scsih_probe_sas - reporting raid volumes to sas transport
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *next;
unsigned long flags;
u16 handle, parent_handle;
u64 sas_address;
/* SAS Device List */
list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
list) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
handle = sas_device->handle;
parent_handle = sas_device->parent_handle;
sas_address = sas_device->sas_address;
if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
mpt2sas_transport_port_remove(ioc, sas_address,
parent_handle);
_scsih_sas_device_remove(ioc, sas_device);
}
}
}
/**
* _scsih_probe_devices - probing for devices
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
{
u16 volume_mapping_flags =
le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
return; /* return when IOC doesn't support initiator mode */
_scsih_probe_boot_devices(ioc);
if (ioc->ir_firmware) {
if ((volume_mapping_flags &
MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
_scsih_probe_sas(ioc);
_scsih_probe_raid(ioc);
} else {
_scsih_probe_raid(ioc);
_scsih_probe_sas(ioc);
}
} else
_scsih_probe_sas(ioc);
}
/**
* _scsih_probe - attach and add scsi host
* @pdev: PCI device struct
* @id: pci device id
*
* Returns 0 success, anything else error.
*/
static int
_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT2SAS_ADAPTER *ioc;
struct Scsi_Host *shost;
shost = scsi_host_alloc(&scsih_driver_template,
sizeof(struct MPT2SAS_ADAPTER));
if (!shost)
return -ENODEV;
/* init local params */
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
INIT_LIST_HEAD(&ioc->list);
list_add_tail(&ioc->list, &mpt2sas_ioc_list);
ioc->shost = shost;
ioc->id = mpt_ids++;
sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
ioc->pdev = pdev;
ioc->scsi_io_cb_idx = scsi_io_cb_idx;
ioc->tm_cb_idx = tm_cb_idx;
ioc->ctl_cb_idx = ctl_cb_idx;
ioc->base_cb_idx = base_cb_idx;
ioc->transport_cb_idx = transport_cb_idx;
ioc->config_cb_idx = config_cb_idx;
ioc->logging_level = logging_level;
/* misc semaphores and spin locks */
spin_lock_init(&ioc->ioc_reset_in_progress_lock);
spin_lock_init(&ioc->scsi_lookup_lock);
spin_lock_init(&ioc->sas_device_lock);
spin_lock_init(&ioc->sas_node_lock);
spin_lock_init(&ioc->fw_event_lock);
spin_lock_init(&ioc->raid_device_lock);
INIT_LIST_HEAD(&ioc->sas_device_list);
INIT_LIST_HEAD(&ioc->sas_device_init_list);
INIT_LIST_HEAD(&ioc->sas_expander_list);
INIT_LIST_HEAD(&ioc->fw_event_list);
INIT_LIST_HEAD(&ioc->raid_device_list);
INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
/* init shost parameters */
shost->max_cmd_len = 16;
shost->max_lun = max_lun;
shost->transportt = mpt2sas_transport_template;
shost->unique_id = ioc->id;
if ((scsi_add_host(shost, &pdev->dev))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
list_del(&ioc->list);
goto out_add_shost_fail;
}
scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION);
/* event thread */
snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
"fw_event%d", ioc->id);
ioc->firmware_event_thread = create_singlethread_workqueue(
ioc->firmware_event_name);
if (!ioc->firmware_event_thread) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_thread_fail;
}
ioc->wait_for_port_enable_to_complete = 1;
if ((mpt2sas_base_attach(ioc))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_attach_fail;
}
ioc->wait_for_port_enable_to_complete = 0;
_scsih_probe_devices(ioc);
return 0;
out_attach_fail:
destroy_workqueue(ioc->firmware_event_thread);
out_thread_fail:
list_del(&ioc->list);
scsi_remove_host(shost);
out_add_shost_fail:
return -ENODEV;
}
#ifdef CONFIG_PM
/**
* _scsih_suspend - power management suspend main entry point
* @pdev: PCI device struct
* @state: PM state change to (usually PCI_D3)
*
* Returns 0 success, anything else error.
*/
static int
_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
u32 device_state;
flush_scheduled_work();
scsi_block_requests(shost);
device_state = pci_choose_state(pdev, state);
printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
"operating state [D%d]\n", ioc->name, pdev,
pci_name(pdev), device_state);
mpt2sas_base_free_resources(ioc);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, device_state);
return 0;
}
/**
* _scsih_resume - power management resume main entry point
* @pdev: PCI device struct
*
* Returns 0 success, anything else error.
*/
static int
_scsih_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
u32 device_state = pdev->current_state;
int r;
printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
"operating state [D%d]\n", ioc->name, pdev,
pci_name(pdev), device_state);
pci_set_power_state(pdev, PCI_D0);
pci_enable_wake(pdev, PCI_D0, 0);
pci_restore_state(pdev);
ioc->pdev = pdev;
r = mpt2sas_base_map_resources(ioc);
if (r)
return r;
mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
scsi_unblock_requests(shost);
return 0;
}
#endif /* CONFIG_PM */
static struct pci_driver scsih_driver = {
.name = MPT2SAS_DRIVER_NAME,
.id_table = scsih_pci_table,
.probe = _scsih_probe,
.remove = __devexit_p(_scsih_remove),
#ifdef CONFIG_PM
.suspend = _scsih_suspend,
.resume = _scsih_resume,
#endif
};
/**
* _scsih_init - main entry point for this driver.
*
* Returns 0 success, anything else error.
*/
static int __init
_scsih_init(void)
{
int error;
mpt_ids = 0;
printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
MPT2SAS_DRIVER_VERSION);
mpt2sas_transport_template =
sas_attach_transport(&mpt2sas_transport_functions);
if (!mpt2sas_transport_template)
return -ENODEV;
mpt2sas_base_initialize_callback_handler();
/* queuecommand callback hander */
scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
/* task managment callback handler */
tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
/* base internal commands callback handler */
base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
/* transport internal commands callback handler */
transport_cb_idx = mpt2sas_base_register_callback_handler(
mpt2sas_transport_done);
/* configuration page API internal commands callback handler */
config_cb_idx = mpt2sas_base_register_callback_handler(
mpt2sas_config_done);
/* ctl module callback handler */
ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
mpt2sas_ctl_init();
error = pci_register_driver(&scsih_driver);
if (error)
sas_release_transport(mpt2sas_transport_template);
return error;
}
/**
* _scsih_exit - exit point for this driver (when it is a module).
*
* Returns 0 success, anything else error.
*/
static void __exit
_scsih_exit(void)
{
printk(KERN_INFO "mpt2sas version %s unloading\n",
MPT2SAS_DRIVER_VERSION);
pci_unregister_driver(&scsih_driver);
sas_release_transport(mpt2sas_transport_template);
mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
mpt2sas_base_release_callback_handler(tm_cb_idx);
mpt2sas_base_release_callback_handler(base_cb_idx);
mpt2sas_base_release_callback_handler(transport_cb_idx);
mpt2sas_base_release_callback_handler(config_cb_idx);
mpt2sas_base_release_callback_handler(ctl_cb_idx);
mpt2sas_ctl_exit();
}
module_init(_scsih_init);
module_exit(_scsih_exit);
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