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linux/drivers/scsi/mpt3sas/mpt3sas_scsih.c
Sreekanth Reddy cc41f11a21 scsi: mpt3sas: Fix kernel panic observed on soft HBA unplug 
Generic protection fault type kernel panic is observed when user performs
soft (ordered) HBA unplug operation while IOs are running on drives
connected to HBA.

When user performs ordered HBA removal operation, the kernel calls PCI
device's .remove() call back function where driver is flushing out all the
outstanding SCSI IO commands with DID_NO_CONNECT host byte and also unmaps
sg buffers allocated for these IO commands.

However, in the ordered HBA removal case (unlike of real HBA hot removal),
HBA device is still alive and hence HBA hardware is performing the DMA
operations to those buffers on the system memory which are already unmapped
while flushing out the outstanding SCSI IO commands and this leads to
kernel panic.

Don't flush out the outstanding IOs from .remove() path in case of ordered
removal since HBA will be still alive in this case and it can complete the
outstanding IOs. Flush out the outstanding IOs only in case of 'physical
HBA hot unplug' where there won't be any communication with the HBA.

During shutdown also it is possible that HBA hardware can perform DMA
operations on those outstanding IO buffers which are completed with
DID_NO_CONNECT by the driver from .shutdown(). So same above fix is applied
in shutdown path as well.

It is safe to drop the outstanding commands when HBA is inaccessible such
as when permanent PCI failure happens, when HBA is in non-operational
state, or when someone does a real HBA hot unplug operation. Since driver
knows that HBA is inaccessible during these cases, it is safe to drop the
outstanding commands instead of waiting for SCSI error recovery to kick in
and clear these outstanding commands.

Link: https://lore.kernel.org/r/1585302763-23007-1-git-send-email-sreekanth.reddy@broadcom.com
Fixes: c666d3be99 ("scsi: mpt3sas: wait for and flush running commands on shutdown/unload")
Cc: stable@vger.kernel.org #v4.14.174+
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-31 22:02:37 -04:00

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/*
* Scsi Host Layer for MPT (Message Passing Technology) based controllers
*
* This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c
* Copyright (C) 2012-2014 LSI Corporation
* Copyright (C) 2013-2014 Avago Technologies
* (mailto: MPT-FusionLinux.pdl@avagotech.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/aer.h>
#include <linux/raid_class.h>
#include <asm/unaligned.h>
#include "mpt3sas_base.h"
#define RAID_CHANNEL 1
#define PCIE_CHANNEL 2
/* forward proto's */
static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander);
static void _firmware_event_work(struct work_struct *work);
static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device);
static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u8 retry_count, u8 is_pd);
static int _scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
static void _scsih_pcie_device_remove_from_sml(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device);
static void
_scsih_pcie_check_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
/* global parameters */
LIST_HEAD(mpt3sas_ioc_list);
/* global ioc lock for list operations */
DEFINE_SPINLOCK(gioc_lock);
MODULE_AUTHOR(MPT3SAS_AUTHOR);
MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_VERSION(MPT3SAS_DRIVER_VERSION);
MODULE_ALIAS("mpt2sas");
/* local parameters */
static u8 scsi_io_cb_idx = -1;
static u8 tm_cb_idx = -1;
static u8 ctl_cb_idx = -1;
static u8 base_cb_idx = -1;
static u8 port_enable_cb_idx = -1;
static u8 transport_cb_idx = -1;
static u8 scsih_cb_idx = -1;
static u8 config_cb_idx = -1;
static int mpt2_ids;
static int mpt3_ids;
static u8 tm_tr_cb_idx = -1 ;
static u8 tm_tr_volume_cb_idx = -1 ;
static u8 tm_sas_control_cb_idx = -1;
/* command line options */
static u32 logging_level;
MODULE_PARM_DESC(logging_level,
" bits for enabling additional logging info (default=0)");
static ushort max_sectors = 0xFFFF;
module_param(max_sectors, ushort, 0444);
MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
static int missing_delay[2] = {-1, -1};
module_param_array(missing_delay, int, NULL, 0444);
MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT3SAS_MAX_LUN (16895)
static u64 max_lun = MPT3SAS_MAX_LUN;
module_param(max_lun, ullong, 0444);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
static ushort hbas_to_enumerate;
module_param(hbas_to_enumerate, ushort, 0444);
MODULE_PARM_DESC(hbas_to_enumerate,
" 0 - enumerates both SAS 2.0 & SAS 3.0 generation HBAs\n \
1 - enumerates only SAS 2.0 generation HBAs\n \
2 - enumerates only SAS 3.0 generation HBAs (default=0)");
/* diag_buffer_enable is bitwise
* bit 0 set = TRACE
* bit 1 set = SNAPSHOT
* bit 2 set = EXTENDED
*
* Either bit can be set, or both
*/
static int diag_buffer_enable = -1;
module_param(diag_buffer_enable, int, 0444);
MODULE_PARM_DESC(diag_buffer_enable,
" post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
static int disable_discovery = -1;
module_param(disable_discovery, int, 0444);
MODULE_PARM_DESC(disable_discovery, " disable discovery ");
/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
static int prot_mask = -1;
module_param(prot_mask, int, 0444);
MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
static bool enable_sdev_max_qd;
module_param(enable_sdev_max_qd, bool, 0444);
MODULE_PARM_DESC(enable_sdev_max_qd,
"Enable sdev max qd as can_queue, def=disabled(0)");
/* raid transport support */
static struct raid_template *mpt3sas_raid_template;
static struct raid_template *mpt2sas_raid_template;
/**
* struct sense_info - common structure for obtaining sense keys
* @skey: sense key
* @asc: additional sense code
* @ascq: additional sense code qualifier
*/
struct sense_info {
u8 skey;
u8 asc;
u8 ascq;
};
#define MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB)
#define MPT3SAS_TURN_ON_PFA_LED (0xFFFC)
#define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD)
#define MPT3SAS_ABRT_TASK_SET (0xFFFE)
#define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
/**
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
* @ioc: per adapter object
* @device_handle: device handle
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @ignore: flag meaning this event has been marked to ignore
* @event: firmware event MPI2_EVENT_XXX defined in mpi2_ioc.h
* @refcount: kref for this event
* @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 MPT3SAS_ADAPTER *ioc;
u16 device_handle;
u8 VF_ID;
u8 VP_ID;
u8 ignore;
u16 event;
struct kref refcount;
char event_data[] __aligned(4);
};
static void fw_event_work_free(struct kref *r)
{
kfree(container_of(r, struct fw_event_work, refcount));
}
static void fw_event_work_get(struct fw_event_work *fw_work)
{
kref_get(&fw_work->refcount);
}
static void fw_event_work_put(struct fw_event_work *fw_work)
{
kref_put(&fw_work->refcount, fw_event_work_free);
}
static struct fw_event_work *alloc_fw_event_work(int len)
{
struct fw_event_work *fw_event;
fw_event = kzalloc(sizeof(*fw_event) + len, GFP_ATOMIC);
if (!fw_event)
return NULL;
kref_init(&fw_event->refcount);
return fw_event;
}
/**
* struct _scsi_io_transfer - scsi io transfer
* @handle: sas device handle (assigned by firmware)
* @is_raid: flag set for hidden raid components
* @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
* @data_length: data transfer length
* @data_dma: dma pointer to data
* @sense: sense data
* @lun: lun number
* @cdb_length: cdb length
* @cdb: cdb contents
* @timeout: timeout for this command
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @valid_reply: flag set for reply message
* @sense_length: sense length
* @ioc_status: ioc status
* @scsi_state: scsi state
* @scsi_status: scsi staus
* @log_info: log information
* @transfer_length: data length transfer when there is a reply message
*
* Used for sending internal scsi commands to devices within this module.
* Refer to _scsi_send_scsi_io().
*/
struct _scsi_io_transfer {
u16 handle;
u8 is_raid;
enum dma_data_direction dir;
u32 data_length;
dma_addr_t data_dma;
u8 sense[SCSI_SENSE_BUFFERSIZE];
u32 lun;
u8 cdb_length;
u8 cdb[32];
u8 timeout;
u8 VF_ID;
u8 VP_ID;
u8 valid_reply;
/* the following bits are only valid when 'valid_reply = 1' */
u32 sense_length;
u16 ioc_status;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
u32 transfer_length;
};
/**
* _scsih_set_debug_level - global setting of ioc->logging_level.
* @val: ?
* @kp: ?
*
* Note: The logging levels are defined in mpt3sas_debug.h.
*/
static int
_scsih_set_debug_level(const char *val, const struct kernel_param *kp)
{
int ret = param_set_int(val, kp);
struct MPT3SAS_ADAPTER *ioc;
if (ret)
return ret;
pr_info("setting logging_level(0x%08x)\n", logging_level);
spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
ioc->logging_level = logging_level;
spin_unlock(&gioc_lock);
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
*
* Return: 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
*
* Return: 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
*
* Return: 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: slot number
* @form: specifies boot device form
* @boot_device: boot device object from bios page 2
*
* Return: 1 when there's a match, 0 means no match.
*/
static int
_scsih_is_boot_device(u64 sas_address, u64 device_name,
u64 enclosure_logical_id, u16 slot, u8 form,
Mpi2BiosPage2BootDevice_t *boot_device)
{
int rc = 0;
switch (form) {
case MPI2_BIOSPAGE2_FORM_SAS_WWID:
if (!sas_address)
break;
rc = _scsih_srch_boot_sas_address(
sas_address, &boot_device->SasWwid);
break;
case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
if (!enclosure_logical_id)
break;
rc = _scsih_srch_boot_encl_slot(
enclosure_logical_id,
slot, &boot_device->EnclosureSlot);
break;
case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
if (!device_name)
break;
rc = _scsih_srch_boot_device_name(
device_name, &boot_device->DeviceName);
break;
case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
break;
}
return rc;
}
/**
* _scsih_get_sas_address - set the sas_address for given device handle
* @ioc: ?
* @handle: device handle
* @sas_address: sas address
*
* Return: 0 success, non-zero when failure
*/
static int
_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u64 *sas_address)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 ioc_status;
*sas_address = 0;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -ENXIO;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
/* For HBA, vSES doesn't return HBA SAS address. Instead return
* vSES's sas address.
*/
if ((handle <= ioc->sas_hba.num_phys) &&
(!(le32_to_cpu(sas_device_pg0.DeviceInfo) &
MPI2_SAS_DEVICE_INFO_SEP)))
*sas_address = ioc->sas_hba.sas_address;
else
*sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
return 0;
}
/* we hit this because the given parent handle doesn't exist */
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
return -ENXIO;
/* else error case */
ioc_err(ioc, "handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n",
handle, ioc_status, __FILE__, __LINE__, __func__);
return -EIO;
}
/**
* _scsih_determine_boot_device - determine boot device.
* @ioc: per adapter object
* @device: sas_device or pcie_device object
* @channel: SAS or PCIe channel
*
* Determines whether this device should be first reported device to
* to scsi-ml or sas transport, this purpose is for persistent boot device.
* There are primary, alternate, and current entries in bios page 2. The order
* priority is primary, alternate, then current. This routine saves
* the corresponding device object.
* The saved data to be used later in _scsih_probe_boot_devices().
*/
static void
_scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc, void *device,
u32 channel)
{
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
struct _raid_device *raid_device;
u64 sas_address;
u64 device_name;
u64 enclosure_logical_id;
u16 slot;
/* only process this function when driver loads */
if (!ioc->is_driver_loading)
return;
/* no Bios, return immediately */
if (!ioc->bios_pg3.BiosVersion)
return;
if (channel == RAID_CHANNEL) {
raid_device = device;
sas_address = raid_device->wwid;
device_name = 0;
enclosure_logical_id = 0;
slot = 0;
} else if (channel == PCIE_CHANNEL) {
pcie_device = device;
sas_address = pcie_device->wwid;
device_name = 0;
enclosure_logical_id = 0;
slot = 0;
} else {
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;
}
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,
ioc_info(ioc, "%s: req_boot_device(0x%016llx)\n",
__func__, (u64)sas_address));
ioc->req_boot_device.device = device;
ioc->req_boot_device.channel = channel;
}
}
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,
ioc_info(ioc, "%s: req_alt_boot_device(0x%016llx)\n",
__func__, (u64)sas_address));
ioc->req_alt_boot_device.device = device;
ioc->req_alt_boot_device.channel = channel;
}
}
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,
ioc_info(ioc, "%s: current_boot_device(0x%016llx)\n",
__func__, (u64)sas_address));
ioc->current_boot_device.device = device;
ioc->current_boot_device.channel = channel;
}
}
}
static struct _sas_device *
__mpt3sas_get_sdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _sas_device *ret;
assert_spin_locked(&ioc->sas_device_lock);
ret = tgt_priv->sas_dev;
if (ret)
sas_device_get(ret);
return ret;
}
static struct _sas_device *
mpt3sas_get_sdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _sas_device *ret;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
ret = __mpt3sas_get_sdev_from_target(ioc, tgt_priv);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return ret;
}
static struct _pcie_device *
__mpt3sas_get_pdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _pcie_device *ret;
assert_spin_locked(&ioc->pcie_device_lock);
ret = tgt_priv->pcie_dev;
if (ret)
pcie_device_get(ret);
return ret;
}
/**
* mpt3sas_get_pdev_from_target - pcie device search
* @ioc: per adapter object
* @tgt_priv: starget private object
*
* Context: This function will acquire ioc->pcie_device_lock and will release
* before returning the pcie_device object.
*
* This searches for pcie_device from target, then return pcie_device object.
*/
static struct _pcie_device *
mpt3sas_get_pdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _pcie_device *ret;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
ret = __mpt3sas_get_pdev_from_target(ioc, tgt_priv);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return ret;
}
struct _sas_device *
__mpt3sas_get_sdev_by_addr(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
if (sas_device->sas_address == sas_address)
goto found_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
if (sas_device->sas_address == sas_address)
goto found_device;
return NULL;
found_device:
sas_device_get(sas_device);
return sas_device;
}
/**
* mpt3sas_get_sdev_by_addr - sas device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address, then return sas_device
* object.
*/
struct _sas_device *
mpt3sas_get_sdev_by_addr(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return sas_device;
}
static struct _sas_device *
__mpt3sas_get_sdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
if (sas_device->handle == handle)
goto found_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
if (sas_device->handle == handle)
goto found_device;
return NULL;
found_device:
sas_device_get(sas_device);
return sas_device;
}
/**
* mpt3sas_get_sdev_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.
*/
struct _sas_device *
mpt3sas_get_sdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return sas_device;
}
/**
* _scsih_display_enclosure_chassis_info - display device location info
* @ioc: per adapter object
* @sas_device: per sas device object
* @sdev: scsi device struct
* @starget: scsi target struct
*/
static void
_scsih_display_enclosure_chassis_info(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device, struct scsi_device *sdev,
struct scsi_target *starget)
{
if (sdev) {
if (sas_device->enclosure_handle != 0)
sdev_printk(KERN_INFO, sdev,
"enclosure logical id (0x%016llx), slot(%d) \n",
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->connector_name[0] != '\0')
sdev_printk(KERN_INFO, sdev,
"enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name);
if (sas_device->is_chassis_slot_valid)
sdev_printk(KERN_INFO, sdev, "chassis slot(0x%04x)\n",
sas_device->chassis_slot);
} else if (starget) {
if (sas_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), slot(%d) \n",
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->connector_name[0] != '\0')
starget_printk(KERN_INFO, starget,
"enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name);
if (sas_device->is_chassis_slot_valid)
starget_printk(KERN_INFO, starget,
"chassis slot(0x%04x)\n",
sas_device->chassis_slot);
} else {
if (sas_device->enclosure_handle != 0)
ioc_info(ioc, "enclosure logical id(0x%016llx), slot(%d)\n",
(u64)sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->connector_name[0] != '\0')
ioc_info(ioc, "enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name);
if (sas_device->is_chassis_slot_valid)
ioc_info(ioc, "chassis slot(0x%04x)\n",
sas_device->chassis_slot);
}
}
/**
* _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.
*
* If sas_device is on the list, remove it and decrement its reference count.
*/
static void
_scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
if (!sas_device)
return;
ioc_info(ioc, "removing handle(0x%04x), sas_addr(0x%016llx)\n",
sas_device->handle, (u64)sas_device->sas_address);
_scsih_display_enclosure_chassis_info(ioc, sas_device, NULL, NULL);
/*
* The lock serializes access to the list, but we still need to verify
* that nobody removed the entry while we were waiting on the lock.
*/
spin_lock_irqsave(&ioc->sas_device_lock, flags);
if (!list_empty(&sas_device->list)) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_device_remove_by_handle - removing device object by handle
* @ioc: per adapter object
* @handle: device handle
*/
static void
_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
_scsih_remove_device(ioc, sas_device);
sas_device_put(sas_device);
}
}
/**
* mpt3sas_device_remove_by_sas_address - removing device object by sas address
* @ioc: per adapter object
* @sas_address: device sas_address
*/
void
mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc, sas_address);
if (sas_device) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
_scsih_remove_device(ioc, sas_device);
sas_device_put(sas_device);
}
}
/**
* _scsih_sas_device_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object to the ioc->sas_device_list.
*/
static void
_scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__, sas_device->handle,
(u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->hide_drives) {
clear_bit(sas_device->handle, ioc->pend_os_device_add);
return;
}
if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
sas_device->sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
/*
* When asyn scanning is enabled, its not possible to remove
* devices while scanning is turned on due to an oops in
* scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
_scsih_sas_device_remove(ioc, sas_device);
}
} else
clear_bit(sas_device->handle, ioc->pend_os_device_add);
}
/**
* _scsih_sas_device_init_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object at driver load time to the ioc->sas_device_init_list.
*/
static void
_scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__, sas_device->handle,
(u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
_scsih_determine_boot_device(ioc, sas_device, 0);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
static struct _pcie_device *
__mpt3sas_get_pdev_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
{
struct _pcie_device *pcie_device;
assert_spin_locked(&ioc->pcie_device_lock);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list)
if (pcie_device->wwid == wwid)
goto found_device;
list_for_each_entry(pcie_device, &ioc->pcie_device_init_list, list)
if (pcie_device->wwid == wwid)
goto found_device;
return NULL;
found_device:
pcie_device_get(pcie_device);
return pcie_device;
}
/**
* mpt3sas_get_pdev_by_wwid - pcie device search
* @ioc: per adapter object
* @wwid: wwid
*
* Context: This function will acquire ioc->pcie_device_lock and will release
* before returning the pcie_device object.
*
* This searches for pcie_device based on wwid, then return pcie_device object.
*/
static struct _pcie_device *
mpt3sas_get_pdev_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
{
struct _pcie_device *pcie_device;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc, wwid);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return pcie_device;
}
static struct _pcie_device *
__mpt3sas_get_pdev_by_idchannel(struct MPT3SAS_ADAPTER *ioc, int id,
int channel)
{
struct _pcie_device *pcie_device;
assert_spin_locked(&ioc->pcie_device_lock);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list)
if (pcie_device->id == id && pcie_device->channel == channel)
goto found_device;
list_for_each_entry(pcie_device, &ioc->pcie_device_init_list, list)
if (pcie_device->id == id && pcie_device->channel == channel)
goto found_device;
return NULL;
found_device:
pcie_device_get(pcie_device);
return pcie_device;
}
static struct _pcie_device *
__mpt3sas_get_pdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
assert_spin_locked(&ioc->pcie_device_lock);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list)
if (pcie_device->handle == handle)
goto found_device;
list_for_each_entry(pcie_device, &ioc->pcie_device_init_list, list)
if (pcie_device->handle == handle)
goto found_device;
return NULL;
found_device:
pcie_device_get(pcie_device);
return pcie_device;
}
/**
* mpt3sas_get_pdev_by_handle - pcie device search
* @ioc: per adapter object
* @handle: Firmware device handle
*
* Context: This function will acquire ioc->pcie_device_lock and will release
* before returning the pcie_device object.
*
* This searches for pcie_device based on handle, then return pcie_device
* object.
*/
struct _pcie_device *
mpt3sas_get_pdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return pcie_device;
}
/**
* _scsih_set_nvme_max_shutdown_latency - Update max_shutdown_latency.
* @ioc: per adapter object
* Context: This function will acquire ioc->pcie_device_lock
*
* Update ioc->max_shutdown_latency to that NVMe drives RTD3 Entry Latency
* which has reported maximum among all available NVMe drives.
* Minimum max_shutdown_latency will be six seconds.
*/
static void
_scsih_set_nvme_max_shutdown_latency(struct MPT3SAS_ADAPTER *ioc)
{
struct _pcie_device *pcie_device;
unsigned long flags;
u16 shutdown_latency = IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
if (pcie_device->shutdown_latency) {
if (shutdown_latency < pcie_device->shutdown_latency)
shutdown_latency =
pcie_device->shutdown_latency;
}
}
ioc->max_shutdown_latency = shutdown_latency;
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_pcie_device_remove - remove pcie_device from list.
* @ioc: per adapter object
* @pcie_device: the pcie_device object
* Context: This function will acquire ioc->pcie_device_lock.
*
* If pcie_device is on the list, remove it and decrement its reference count.
*/
static void
_scsih_pcie_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
int was_on_pcie_device_list = 0;
u8 update_latency = 0;
if (!pcie_device)
return;
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
pcie_device->handle, (u64)pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
ioc_info(ioc, "removing enclosure logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
ioc_info(ioc, "removing enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
was_on_pcie_device_list = 1;
}
if (pcie_device->shutdown_latency == ioc->max_shutdown_latency)
update_latency = 1;
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (was_on_pcie_device_list) {
kfree(pcie_device->serial_number);
pcie_device_put(pcie_device);
}
/*
* This device's RTD3 Entry Latency matches IOC's
* max_shutdown_latency. Recalculate IOC's max_shutdown_latency
* from the available drives as current drive is getting removed.
*/
if (update_latency)
_scsih_set_nvme_max_shutdown_latency(ioc);
}
/**
* _scsih_pcie_device_remove_by_handle - removing pcie device object by handle
* @ioc: per adapter object
* @handle: device handle
*/
static void
_scsih_pcie_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
unsigned long flags;
int was_on_pcie_device_list = 0;
u8 update_latency = 0;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device) {
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
was_on_pcie_device_list = 1;
pcie_device_put(pcie_device);
}
if (pcie_device->shutdown_latency == ioc->max_shutdown_latency)
update_latency = 1;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (was_on_pcie_device_list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
pcie_device_put(pcie_device);
}
/*
* This device's RTD3 Entry Latency matches IOC's
* max_shutdown_latency. Recalculate IOC's max_shutdown_latency
* from the available drives as current drive is getting removed.
*/
if (update_latency)
_scsih_set_nvme_max_shutdown_latency(ioc);
}
/**
* _scsih_pcie_device_add - add pcie_device object
* @ioc: per adapter object
* @pcie_device: pcie_device object
*
* This is added to the pcie_device_list link list.
*/
static void
_scsih_pcie_device_add(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle (0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure logical id(0x%016llx), slot( %d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure level(0x%04x), connector name( %s)\n",
__func__, pcie_device->enclosure_level,
pcie_device->connector_name));
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device_get(pcie_device);
list_add_tail(&pcie_device->list, &ioc->pcie_device_list);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (pcie_device->access_status ==
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED) {
clear_bit(pcie_device->handle, ioc->pend_os_device_add);
return;
}
if (scsi_add_device(ioc->shost, PCIE_CHANNEL, pcie_device->id, 0)) {
_scsih_pcie_device_remove(ioc, pcie_device);
} else if (!pcie_device->starget) {
if (!ioc->is_driver_loading) {
/*TODO-- Need to find out whether this condition will occur or not*/
clear_bit(pcie_device->handle, ioc->pend_os_device_add);
}
} else
clear_bit(pcie_device->handle, ioc->pend_os_device_add);
}
/*
* _scsih_pcie_device_init_add - insert pcie_device to the init list.
* @ioc: per adapter object
* @pcie_device: the pcie_device object
* Context: This function will acquire ioc->pcie_device_lock.
*
* Adding new object at driver load time to the ioc->pcie_device_init_list.
*/
static void
_scsih_pcie_device_init_add(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle (0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure logical id(0x%016llx), slot( %d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure level(0x%04x), connector name( %s)\n",
__func__, pcie_device->enclosure_level,
pcie_device->connector_name));
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device_get(pcie_device);
list_add_tail(&pcie_device->list, &ioc->pcie_device_init_list);
if (pcie_device->access_status !=
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED)
_scsih_determine_boot_device(ioc, pcie_device, PCIE_CHANNEL);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_raid_device_find_by_id - raid device search
* @ioc: per adapter object
* @id: sas device target id
* @channel: sas device channel
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on target id, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->id == id && raid_device->channel == channel) {
r = raid_device;
goto out;
}
}
out:
return r;
}
/**
* mpt3sas_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.
*/
struct _raid_device *
mpt3sas_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->handle != handle)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_wwid - raid device search
* @ioc: per adapter object
* @wwid: ?
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on wwid, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid != wwid)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_add - add raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
* This is added to the raid_device_list link list.
*/
static void
_scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), wwid(0x%016llx)\n",
__func__,
raid_device->handle, (u64)raid_device->wwid));
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_add_tail(&raid_device->list, &ioc->raid_device_list);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_raid_device_remove - delete raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
*/
static void
_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_del(&raid_device->list);
kfree(raid_device);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* mpt3sas_scsih_expander_find_by_handle - expander device search
* @ioc: per adapter object
* @handle: expander handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for expander device based on handle, then returns the
* sas_node object.
*/
struct _sas_node *
mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->handle != handle)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* mpt3sas_scsih_enclosure_find_by_handle - exclosure device search
* @ioc: per adapter object
* @handle: enclosure handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for enclosure device based on handle, then returns the
* enclosure object.
*/
static struct _enclosure_node *
mpt3sas_scsih_enclosure_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _enclosure_node *enclosure_dev, *r;
r = NULL;
list_for_each_entry(enclosure_dev, &ioc->enclosure_list, list) {
if (le16_to_cpu(enclosure_dev->pg0.EnclosureHandle) != handle)
continue;
r = enclosure_dev;
goto out;
}
out:
return r;
}
/**
* mpt3sas_scsih_expander_find_by_sas_address - expander device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_node_lock.
*
* This searches for expander device based on sas_address, then returns the
* sas_node object.
*/
struct _sas_node *
mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* _scsih_expander_node_add - insert expander device to the list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
* Context: This function will acquire ioc->sas_node_lock.
*
* Adding new object to the ioc->sas_expander_list.
*/
static void
_scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_is_end_device - determines if device is an end device
* @device_info: bitfield providing information about the device.
* Context: none
*
* Return: 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_is_nvme_pciescsi_device - determines if
* device is an pcie nvme/scsi device
* @device_info: bitfield providing information about the device.
* Context: none
*
* Returns 1 if device is pcie device type nvme/scsi.
*/
static int
_scsih_is_nvme_pciescsi_device(u32 device_info)
{
if (((device_info & MPI26_PCIE_DEVINFO_MASK_DEVICE_TYPE)
== MPI26_PCIE_DEVINFO_NVME) ||
((device_info & MPI26_PCIE_DEVINFO_MASK_DEVICE_TYPE)
== MPI26_PCIE_DEVINFO_SCSI))
return 1;
else
return 0;
}
/**
* mpt3sas_scsih_scsi_lookup_get - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
*
* Return: the smid stored scmd pointer.
* Then will dereference the stored scmd pointer.
*/
struct scsi_cmnd *
mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct scsi_cmnd *scmd = NULL;
struct scsiio_tracker *st;
Mpi25SCSIIORequest_t *mpi_request;
if (smid > 0 &&
smid <= ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT) {
u32 unique_tag = smid - 1;
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
/*
* If SCSI IO request is outstanding at driver level then
* DevHandle filed must be non-zero. If DevHandle is zero
* then it means that this smid is free at driver level,
* so return NULL.
*/
if (!mpi_request->DevHandle)
return scmd;
scmd = scsi_host_find_tag(ioc->shost, unique_tag);
if (scmd) {
st = scsi_cmd_priv(scmd);
if (st->cb_idx == 0xFF || st->smid == 0)
scmd = NULL;
}
}
return scmd;
}
/**
* scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
*
* Return: queue depth.
*/
static int
scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
int max_depth;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
max_depth = shost->can_queue;
/*
* limit max device queue for SATA to 32 if enable_sdev_max_qd
* is disabled.
*/
if (ioc->enable_sdev_max_qd)
goto not_sata;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
goto not_sata;
sas_target_priv_data = sas_device_priv_data->sas_target;
if (!sas_target_priv_data)
goto not_sata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
goto not_sata;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device) {
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
max_depth = MPT3SAS_SATA_QUEUE_DEPTH;
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
not_sata:
if (!sdev->tagged_supported)
max_depth = 1;
if (qdepth > max_depth)
qdepth = max_depth;
scsi_change_queue_depth(sdev, qdepth);
sdev_printk(KERN_INFO, sdev,
"qdepth(%d), tagged(%d), scsi_level(%d), cmd_que(%d)\n",
sdev->queue_depth, sdev->tagged_supported,
sdev->scsi_level, ((sdev->inquiry[7] & 2) >> 1));
return sdev->queue_depth;
}
/**
* mpt3sas_scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
*
* Returns nothing.
*/
void
mpt3sas_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
if (ioc->enable_sdev_max_qd)
qdepth = shost->can_queue;
scsih_change_queue_depth(sdev, qdepth);
}
/**
* scsih_target_alloc - target add routine
* @starget: scsi target struct
*
* Return: 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
struct _pcie_device *pcie_device;
unsigned long flags;
struct sas_rphy *rphy;
sas_target_priv_data = kzalloc(sizeof(*sas_target_priv_data),
GFP_KERNEL);
if (!sas_target_priv_data)
return -ENOMEM;
starget->hostdata = sas_target_priv_data;
sas_target_priv_data->starget = starget;
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
/* RAID volumes */
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
sas_target_priv_data->handle = raid_device->handle;
sas_target_priv_data->sas_address = raid_device->wwid;
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
if (ioc->is_warpdrive)
sas_target_priv_data->raid_device = raid_device;
raid_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return 0;
}
/* PCIe devices */
if (starget->channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_idchannel(ioc, starget->id,
starget->channel);
if (pcie_device) {
sas_target_priv_data->handle = pcie_device->handle;
sas_target_priv_data->sas_address = pcie_device->wwid;
sas_target_priv_data->pcie_dev = pcie_device;
pcie_device->starget = starget;
pcie_device->id = starget->id;
pcie_device->channel = starget->channel;
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_PCIE_DEVICE;
if (pcie_device->fast_path)
sas_target_priv_data->flags |=
MPT_TARGET_FASTPATH_IO;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return 0;
}
/* sas/sata devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
sas_device = __mpt3sas_get_sdev_by_addr(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_target_priv_data->sas_dev = sas_device;
sas_device->starget = starget;
sas_device->id = starget->id;
sas_device->channel = starget->channel;
if (test_bit(sas_device->handle, ioc->pd_handles))
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
if (sas_device->fast_path)
sas_target_priv_data->flags |=
MPT_TARGET_FASTPATH_IO;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return 0;
}
/**
* scsih_target_destroy - target destroy routine
* @starget: scsi target struct
*/
static void
scsih_target_destroy(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
struct _pcie_device *pcie_device;
unsigned long flags;
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;
}
if (starget->channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_from_target(ioc,
sas_target_priv_data);
if (pcie_device && (pcie_device->starget == starget) &&
(pcie_device->id == starget->id) &&
(pcie_device->channel == starget->channel))
pcie_device->starget = NULL;
if (pcie_device) {
/*
* Corresponding get() is in _scsih_target_alloc()
*/
sas_target_priv_data->pcie_dev = NULL;
pcie_device_put(pcie_device);
pcie_device_put(pcie_device);
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
goto out;
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
(sas_device->channel == starget->channel))
sas_device->starget = NULL;
if (sas_device) {
/*
* Corresponding get() is in _scsih_target_alloc()
*/
sas_target_priv_data->sas_dev = NULL;
sas_device_put(sas_device);
sas_device_put(sas_device);
}
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
*
* Return: 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_slave_alloc(struct scsi_device *sdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_target *starget;
struct _raid_device *raid_device;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
unsigned long flags;
sas_device_priv_data = kzalloc(sizeof(*sas_device_priv_data),
GFP_KERNEL);
if (!sas_device_priv_data)
return -ENOMEM;
sas_device_priv_data->lun = sdev->lun;
sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns++;
sas_device_priv_data->sas_target = sas_target_priv_data;
sdev->hostdata = sas_device_priv_data;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
sdev->no_uld_attach = 1;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc,
starget->id, starget->channel);
if (raid_device)
raid_device->sdev = sdev; /* raid is single lun */
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
if (starget->channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc,
sas_target_priv_data->sas_address);
if (pcie_device && (pcie_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
"%s : pcie_device->starget set to starget @ %d\n",
__func__, __LINE__);
pcie_device->starget = starget;
}
if (pcie_device)
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
} else if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_target_priv_data->sas_address);
if (sas_device && (sas_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
"%s : sas_device->starget set to starget @ %d\n",
__func__, __LINE__);
sas_device->starget = starget;
}
if (sas_device)
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
return 0;
}
/**
* scsih_slave_destroy - device destroy routine
* @sdev: scsi device struct
*/
static void
scsih_slave_destroy(struct scsi_device *sdev)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
unsigned long flags;
if (!sdev->hostdata)
return;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns--;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_from_target(ioc,
sas_target_priv_data);
if (pcie_device && !sas_target_priv_data->num_luns)
pcie_device->starget = NULL;
if (pcie_device)
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
} else if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc,
sas_target_priv_data);
if (sas_device && !sas_target_priv_data->num_luns)
sas_device->starget = NULL;
if (sas_device)
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
kfree(sdev->hostdata);
sdev->hostdata = NULL;
}
/**
* _scsih_display_sata_capabilities - sata capabilities
* @ioc: per adapter object
* @handle: device handle
* @sdev: scsi device struct
*/
static void
_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc,
u16 handle, struct scsi_device *sdev)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u16 flags;
u32 device_info;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
flags = le16_to_cpu(sas_device_pg0.Flags);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
sdev_printk(KERN_INFO, sdev,
"atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
"sw_preserve(%s)\n",
(device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
"n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
}
/*
* raid transport support -
* Enabled for SLES11 and newer, in older kernels the driver will panic when
* unloading the driver followed by a load - I believe that the subroutine
* raid_class_release() is not cleaning up properly.
*/
/**
* scsih_is_raid - return boolean indicating device is raid volume
* @dev: the device struct object
*/
static int
scsih_is_raid(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
if (ioc->is_warpdrive)
return 0;
return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
}
static int
scsih_is_nvme(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
return (sdev->channel == PCIE_CHANNEL) ? 1 : 0;
}
/**
* scsih_get_resync - get raid volume resync percent complete
* @dev: the device struct object
*/
static void
scsih_get_resync(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
static struct _raid_device *raid_device;
unsigned long flags;
Mpi2RaidVolPage0_t vol_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 volume_status_flags;
u8 percent_complete;
u16 handle;
percent_complete = 0;
handle = 0;
if (ioc->is_warpdrive)
goto out;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
sdev->channel);
if (raid_device) {
handle = raid_device->handle;
percent_complete = raid_device->percent_complete;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!handle)
goto out;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
percent_complete = 0;
goto out;
}
volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
if (!(volume_status_flags &
MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
percent_complete = 0;
out:
switch (ioc->hba_mpi_version_belonged) {
case MPI2_VERSION:
raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
break;
case MPI25_VERSION:
case MPI26_VERSION:
raid_set_resync(mpt3sas_raid_template, dev, percent_complete);
break;
}
}
/**
* scsih_get_state - get raid volume level
* @dev: the device struct object
*/
static void
scsih_get_state(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
static struct _raid_device *raid_device;
unsigned long flags;
Mpi2RaidVolPage0_t vol_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 volstate;
enum raid_state state = RAID_STATE_UNKNOWN;
u16 handle = 0;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
sdev->channel);
if (raid_device)
handle = raid_device->handle;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device)
goto out;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
state = RAID_STATE_RESYNCING;
goto out;
}
switch (vol_pg0.VolumeState) {
case MPI2_RAID_VOL_STATE_OPTIMAL:
case MPI2_RAID_VOL_STATE_ONLINE:
state = RAID_STATE_ACTIVE;
break;
case MPI2_RAID_VOL_STATE_DEGRADED:
state = RAID_STATE_DEGRADED;
break;
case MPI2_RAID_VOL_STATE_FAILED:
case MPI2_RAID_VOL_STATE_MISSING:
state = RAID_STATE_OFFLINE;
break;
}
out:
switch (ioc->hba_mpi_version_belonged) {
case MPI2_VERSION:
raid_set_state(mpt2sas_raid_template, dev, state);
break;
case MPI25_VERSION:
case MPI26_VERSION:
raid_set_state(mpt3sas_raid_template, dev, state);
break;
}
}
/**
* _scsih_set_level - set raid level
* @ioc: ?
* @sdev: scsi device struct
* @volume_type: volume type
*/
static void
_scsih_set_level(struct MPT3SAS_ADAPTER *ioc,
struct scsi_device *sdev, u8 volume_type)
{
enum raid_level level = RAID_LEVEL_UNKNOWN;
switch (volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
level = RAID_LEVEL_0;
break;
case MPI2_RAID_VOL_TYPE_RAID10:
level = RAID_LEVEL_10;
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
level = RAID_LEVEL_1E;
break;
case MPI2_RAID_VOL_TYPE_RAID1:
level = RAID_LEVEL_1;
break;
}
switch (ioc->hba_mpi_version_belonged) {
case MPI2_VERSION:
raid_set_level(mpt2sas_raid_template,
&sdev->sdev_gendev, level);
break;
case MPI25_VERSION:
case MPI26_VERSION:
raid_set_level(mpt3sas_raid_template,
&sdev->sdev_gendev, level);
break;
}
}
/**
* _scsih_get_volume_capabilities - volume capabilities
* @ioc: per adapter object
* @raid_device: the raid_device object
*
* Return: 0 for success, else 1
*/
static int
_scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
Mpi2RaidVolPage0_t *vol_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 sz;
u8 num_pds;
if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle,
&num_pds)) || !num_pds) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
raid_device->num_pds = num_pds;
sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
sizeof(Mpi2RaidVol0PhysDisk_t));
vol_pg0 = kzalloc(sz, GFP_KERNEL);
if (!vol_pg0) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
kfree(vol_pg0);
return 1;
}
raid_device->volume_type = vol_pg0->VolumeType;
/* figure out what the underlying devices are by
* obtaining the device_info bits for the 1st device
*/
if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
vol_pg0->PhysDisk[0].PhysDiskNum))) {
if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
le16_to_cpu(pd_pg0.DevHandle)))) {
raid_device->device_info =
le32_to_cpu(sas_device_pg0.DeviceInfo);
}
}
kfree(vol_pg0);
return 0;
}
/**
* _scsih_enable_tlr - setting TLR flags
* @ioc: per adapter object
* @sdev: scsi device struct
*
* Enabling Transaction Layer Retries for tape devices when
* vpd page 0x90 is present
*
*/
static void
_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev)
{
/* only for TAPE */
if (sdev->type != TYPE_TAPE)
return;
if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
return;
sas_enable_tlr(sdev);
sdev_printk(KERN_INFO, sdev, "TLR %s\n",
sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
return;
}
/**
* scsih_slave_configure - device configure routine.
* @sdev: scsi device struct
*
* Return: 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_slave_configure(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
struct _raid_device *raid_device;
unsigned long flags;
int qdepth;
u8 ssp_target = 0;
char *ds = "";
char *r_level = "";
u16 handle, volume_handle = 0;
u64 volume_wwid = 0;
qdepth = 1;
sas_device_priv_data = sdev->hostdata;
sas_device_priv_data->configured_lun = 1;
sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
sas_target_priv_data = sas_device_priv_data->sas_target;
handle = sas_target_priv_data->handle;
/* raid volume handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
if (_scsih_get_volume_capabilities(ioc, raid_device)) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
/*
* WARPDRIVE: Initialize the required data for Direct IO
*/
mpt3sas_init_warpdrive_properties(ioc, raid_device);
/* RAID Queue Depth Support
* IS volume = underlying qdepth of drive type, either
* MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH
* IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH)
*/
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
ds = "SSP";
} else {
qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
else
ds = "STP";
}
switch (raid_device->volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
r_level = "RAID0";
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
if (ioc->manu_pg10.OEMIdentifier &&
(le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
MFG10_GF0_R10_DISPLAY) &&
!(raid_device->num_pds % 2))
r_level = "RAID10";
else
r_level = "RAID1E";
break;
case MPI2_RAID_VOL_TYPE_RAID1:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1";
break;
case MPI2_RAID_VOL_TYPE_RAID10:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAID10";
break;
case MPI2_RAID_VOL_TYPE_UNKNOWN:
default:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAIDX";
break;
}
if (!ioc->hide_ir_msg)
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);
if (shost->max_sectors > MPT3SAS_RAID_MAX_SECTORS) {
blk_queue_max_hw_sectors(sdev->request_queue,
MPT3SAS_RAID_MAX_SECTORS);
sdev_printk(KERN_INFO, sdev,
"Set queue's max_sector to: %u\n",
MPT3SAS_RAID_MAX_SECTORS);
}
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
/* raid transport support */
if (!ioc->is_warpdrive)
_scsih_set_level(ioc, sdev, raid_device->volume_type);
return 0;
}
/* non-raid handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
if (mpt3sas_config_get_volume_handle(ioc, handle,
&volume_handle)) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
if (volume_handle && mpt3sas_config_get_volume_wwid(ioc,
volume_handle, &volume_wwid)) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
}
/* PCIe handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc,
sas_device_priv_data->sas_target->sas_address);
if (!pcie_device) {
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
qdepth = MPT3SAS_NVME_QUEUE_DEPTH;
ds = "NVMe";
sdev_printk(KERN_INFO, sdev,
"%s: handle(0x%04x), wwid(0x%016llx), port(%d)\n",
ds, handle, (unsigned long long)pcie_device->wwid,
pcie_device->port_num);
if (pcie_device->enclosure_handle != 0)
sdev_printk(KERN_INFO, sdev,
"%s: enclosure logical id(0x%016llx), slot(%d)\n",
ds,
(unsigned long long)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
sdev_printk(KERN_INFO, sdev,
"%s: enclosure level(0x%04x),"
"connector name( %s)\n", ds,
pcie_device->enclosure_level,
pcie_device->connector_name);
if (pcie_device->nvme_mdts)
blk_queue_max_hw_sectors(sdev->request_queue,
pcie_device->nvme_mdts/512);
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
/* Enable QUEUE_FLAG_NOMERGES flag, so that IOs won't be
** merged and can eliminate holes created during merging
** operation.
**/
blk_queue_flag_set(QUEUE_FLAG_NOMERGES,
sdev->request_queue);
blk_queue_virt_boundary(sdev->request_queue,
ioc->page_size - 1);
return 0;
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_device_priv_data->sas_target->sas_address);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
sas_device->volume_handle = volume_handle;
sas_device->volume_wwid = volume_wwid;
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
ssp_target = 1;
if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SEP) {
sdev_printk(KERN_WARNING, sdev,
"set ignore_delay_remove for handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle);
sas_device_priv_data->ignore_delay_remove = 1;
ds = "SES";
} else
ds = "SSP";
} else {
qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
ds = "STP";
else if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
}
sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \
"sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
ds, handle, (unsigned long long)sas_device->sas_address,
sas_device->phy, (unsigned long long)sas_device->device_name);
_scsih_display_enclosure_chassis_info(NULL, sas_device, sdev, NULL);
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!ssp_target)
_scsih_display_sata_capabilities(ioc, handle, sdev);
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
if (ssp_target) {
sas_read_port_mode_page(sdev);
_scsih_enable_tlr(ioc, sdev);
}
return 0;
}
/**
* scsih_bios_param - fetch head, sector, cylinder info for a disk
* @sdev: scsi device struct
* @bdev: pointer to block device context
* @capacity: device size (in 512 byte sectors)
* @params: three element array to place output:
* params[0] number of heads (max 255)
* params[1] number of sectors (max 63)
* params[2] number of cylinders
*/
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
*/
static void
_scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code)
{
char *desc;
switch (response_code) {
case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
desc = "task management request completed";
break;
case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
desc = "invalid frame";
break;
case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
desc = "task management request not supported";
break;
case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
desc = "task management request failed";
break;
case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
desc = "task management request succeeded";
break;
case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
desc = "invalid lun";
break;
case 0xA:
desc = "overlapped tag attempted";
break;
case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
desc = "task queued, however not sent to target";
break;
default:
desc = "unknown";
break;
}
ioc_warn(ioc, "response_code(0x%01x): %s\n", response_code, desc);
}
/**
* _scsih_tm_done - tm completion routine
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: none.
*
* The callback handler when using scsih_issue_tm.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED)
return 1;
if (ioc->tm_cmds.smid != smid)
return 1;
ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (mpi_reply) {
memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID;
}
ioc->tm_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->tm_cmds.done);
return 1;
}
/**
* mpt3sas_scsih_set_tm_flag - set per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 1;
skip = 1;
ioc->ignore_loginfos = 1;
}
}
}
/**
* mpt3sas_scsih_clear_tm_flag - clear per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 0;
skip = 1;
ioc->ignore_loginfos = 0;
}
}
}
/**
* mpt3sas_scsih_issue_tm - main routine for sending tm requests
* @ioc: per adapter struct
* @handle: device handle
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
* @msix_task: MSIX table index supplied by the OS
* @timeout: timeout in seconds
* @tr_method: Target Reset Method
* Context: user
*
* A generic API for sending task management requests to firmware.
*
* The callback index is set inside `ioc->tm_cb_idx`.
* The caller is responsible to check for outstanding commands.
*
* Return: SUCCESS or FAILED.
*/
int
mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
u8 type, u16 smid_task, u16 msix_task, u8 timeout, u8 tr_method)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
u16 smid = 0;
u32 ioc_state;
int rc;
u8 issue_reset = 0;
lockdep_assert_held(&ioc->tm_cmds.mutex);
if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
ioc_info(ioc, "%s: tm_cmd busy!!!\n", __func__);
return FAILED;
}
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery) {
ioc_info(ioc, "%s: host reset in progress!\n", __func__);
return FAILED;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
dhsprintk(ioc, ioc_info(ioc, "unexpected doorbell active!\n"));
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return (!rc) ? SUCCESS : FAILED;
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt3sas_print_fault_code(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return (!rc) ? SUCCESS : FAILED;
} else if ((ioc_state & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_COREDUMP) {
mpt3sas_print_coredump_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return (!rc) ? SUCCESS : FAILED;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
return FAILED;
}
dtmprintk(ioc,
ioc_info(ioc, "sending tm: handle(0x%04x), task_type(0x%02x), smid(%d), timeout(%d), tr_method(0x%x)\n",
handle, type, smid_task, timeout, tr_method));
ioc->tm_cmds.status = MPT3_CMD_PENDING;
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->tm_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = type;
mpi_request->MsgFlags = tr_method;
mpi_request->TaskMID = cpu_to_le16(smid_task);
int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
mpt3sas_scsih_set_tm_flag(ioc, handle);
init_completion(&ioc->tm_cmds.done);
ioc->put_smid_hi_priority(ioc, smid, msix_task);
wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
mpt3sas_check_cmd_timeout(ioc,
ioc->tm_cmds.status, mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4, issue_reset);
if (issue_reset) {
rc = mpt3sas_base_hard_reset_handler(ioc,
FORCE_BIG_HAMMER);
rc = (!rc) ? SUCCESS : FAILED;
goto out;
}
}
/* sync IRQs in case those were busy during flush. */
mpt3sas_base_sync_reply_irqs(ioc);
if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
mpi_reply = ioc->tm_cmds.reply;
dtmprintk(ioc,
ioc_info(ioc, "complete tm: ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
if (ioc->logging_level & MPT_DEBUG_TM) {
_scsih_response_code(ioc, mpi_reply->ResponseCode);
if (mpi_reply->IOCStatus)
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
}
}
rc = SUCCESS;
out:
mpt3sas_scsih_clear_tm_flag(ioc, handle);
ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
return rc;
}
int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u64 lun, u8 type, u16 smid_task, u16 msix_task,
u8 timeout, u8 tr_method)
{
int ret;
mutex_lock(&ioc->tm_cmds.mutex);
ret = mpt3sas_scsih_issue_tm(ioc, handle, lun, type, smid_task,
msix_task, timeout, tr_method);
mutex_unlock(&ioc->tm_cmds.mutex);
return ret;
}
/**
* _scsih_tm_display_info - displays info about the device
* @ioc: per adapter struct
* @scmd: pointer to scsi command object
*
* Called by task management callback handlers.
*/
static void
_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
{
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *priv_target = starget->hostdata;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
unsigned long flags;
char *device_str = NULL;
if (!priv_target)
return;
if (ioc->hide_ir_msg)
device_str = "WarpDrive";
else
device_str = "volume";
scsi_print_command(scmd);
if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
starget_printk(KERN_INFO, starget,
"%s handle(0x%04x), %s wwid(0x%016llx)\n",
device_str, priv_target->handle,
device_str, (unsigned long long)priv_target->sas_address);
} else if (priv_target->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_from_target(ioc, priv_target);
if (pcie_device) {
starget_printk(KERN_INFO, starget,
"handle(0x%04x), wwid(0x%016llx), port(%d)\n",
pcie_device->handle,
(unsigned long long)pcie_device->wwid,
pcie_device->port_num);
if (pcie_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), slot(%d)\n",
(unsigned long long)
pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
starget_printk(KERN_INFO, starget,
"enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
pcie_device_put(pcie_device);
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
if (priv_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
starget_printk(KERN_INFO, starget,
"volume handle(0x%04x), "
"volume wwid(0x%016llx)\n",
sas_device->volume_handle,
(unsigned long long)sas_device->volume_wwid);
}
starget_printk(KERN_INFO, starget,
"handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
sas_device->handle,
(unsigned long long)sas_device->sas_address,
sas_device->phy);
_scsih_display_enclosure_chassis_info(NULL, sas_device,
NULL, starget);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
/**
* scsih_abort - eh threads main abort routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_abort(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsiio_tracker *st = scsi_cmd_priv(scmd);
u16 handle;
int r;
u8 timeout = 30;
struct _pcie_device *pcie_device = NULL;
sdev_printk(KERN_INFO, scmd->device, "attempting task abort!"
"scmd(0x%p), outstanding for %u ms & timeout %u ms\n",
scmd, jiffies_to_msecs(jiffies - scmd->jiffies_at_alloc),
(scmd->request->timeout / HZ) * 1000);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
ioc->remove_host) {
sdev_printk(KERN_INFO, scmd->device,
"device been deleted! scmd(0x%p)\n", scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* check for completed command */
if (st == NULL || st->cb_idx == 0xFF) {
sdev_printk(KERN_INFO, scmd->device, "No reference found at "
"driver, assuming scmd(0x%p) might have completed\n", scmd);
scmd->result = DID_RESET << 16;
r = SUCCESS;
goto out;
}
/* for hidden raid components and volumes this is not supported */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT ||
sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mpt3sas_halt_firmware(ioc);
handle = sas_device_priv_data->sas_target->handle;
pcie_device = mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info))))
timeout = ioc->nvme_abort_timeout;
r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
st->smid, st->msix_io, timeout, 0);
/* Command must be cleared after abort */
if (r == SUCCESS && st->cb_idx != 0xFF)
r = FAILED;
out:
sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(0x%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
if (pcie_device)
pcie_device_put(pcie_device);
return r;
}
/**
* scsih_dev_reset - eh threads main device reset routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_dev_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
u16 handle;
u8 tr_method = 0;
u8 tr_timeout = 30;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *target_priv_data = starget->hostdata;
sdev_printk(KERN_INFO, scmd->device,
"attempting device reset! scmd(0x%p)\n", scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
ioc->remove_host) {
sdev_printk(KERN_INFO, scmd->device,
"device been deleted! scmd(0x%p)\n", scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
sas_device = mpt3sas_get_sdev_from_target(ioc,
target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
pcie_device = mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info)))) {
tr_timeout = pcie_device->reset_timeout;
tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
} else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 0,
tr_timeout, tr_method);
/* Check for busy commands after reset */
if (r == SUCCESS && atomic_read(&scmd->device->device_busy))
r = FAILED;
out:
sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(0x%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
if (sas_device)
sas_device_put(sas_device);
if (pcie_device)
pcie_device_put(pcie_device);
return r;
}
/**
* scsih_target_reset - eh threads main target reset routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_target_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
u16 handle;
u8 tr_method = 0;
u8 tr_timeout = 30;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget,
"attempting target reset! scmd(0x%p)\n", scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
ioc->remove_host) {
starget_printk(KERN_INFO, starget,
"target been deleted! scmd(0x%p)\n", scmd);
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
sas_device = mpt3sas_get_sdev_from_target(ioc,
target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
pcie_device = mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info)))) {
tr_timeout = pcie_device->reset_timeout;
tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
} else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
r = mpt3sas_scsih_issue_locked_tm(ioc, handle, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0,
tr_timeout, tr_method);
/* Check for busy commands after reset */
if (r == SUCCESS && atomic_read(&starget->target_busy))
r = FAILED;
out:
starget_printk(KERN_INFO, starget, "target reset: %s scmd(0x%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
if (sas_device)
sas_device_put(sas_device);
if (pcie_device)
pcie_device_put(pcie_device);
return r;
}
/**
* scsih_host_reset - eh threads main host reset routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_host_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
int r, retval;
ioc_info(ioc, "attempting host reset! scmd(0x%p)\n", scmd);
scsi_print_command(scmd);
if (ioc->is_driver_loading || ioc->remove_host) {
ioc_info(ioc, "Blocking the host reset\n");
r = FAILED;
goto out;
}
retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
r = (retval < 0) ? FAILED : SUCCESS;
out:
ioc_info(ioc, "host reset: %s scmd(0x%p)\n",
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.
*/
static void
_scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
unsigned long flags;
if (ioc->firmware_event_thread == NULL)
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
fw_event_work_get(fw_event);
INIT_LIST_HEAD(&fw_event->list);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_WORK(&fw_event->work, _firmware_event_work);
fw_event_work_get(fw_event);
queue_work(ioc->firmware_event_thread, &fw_event->work);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_del_from_list - delete fw_event from the list
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* If the fw_event is on the fw_event_list, remove it and do a put.
*/
static void
_scsih_fw_event_del_from_list(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work
*fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (!list_empty(&fw_event->list)) {
list_del_init(&fw_event->list);
fw_event_work_put(fw_event);
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* mpt3sas_send_trigger_data_event - send event for processing trigger data
* @ioc: per adapter object
* @event_data: trigger event data
*/
void
mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
{
struct fw_event_work *fw_event;
u16 sz;
if (ioc->is_driver_loading)
return;
sz = sizeof(*event_data);
fw_event = alloc_fw_event_work(sz);
if (!fw_event)
return;
fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
fw_event->ioc = ioc;
memcpy(fw_event->event_data, event_data, sizeof(*event_data));
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
/**
* _scsih_error_recovery_delete_devices - remove devices not responding
* @ioc: per adapter object
*/
static void
_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
if (ioc->is_driver_loading)
return;
fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
/**
* mpt3sas_port_enable_complete - port enable completed (fake event)
* @ioc: per adapter object
*/
void
mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
static struct fw_event_work *dequeue_next_fw_event(struct MPT3SAS_ADAPTER *ioc)
{
unsigned long flags;
struct fw_event_work *fw_event = NULL;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (!list_empty(&ioc->fw_event_list)) {
fw_event = list_first_entry(&ioc->fw_event_list,
struct fw_event_work, list);
list_del_init(&fw_event->list);
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
return fw_event;
}
/**
* _scsih_fw_event_cleanup_queue - cleanup event queue
* @ioc: per adapter object
*
* Walk the firmware event queue, either killing timers, or waiting
* for outstanding events to complete
*/
static void
_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
if (list_empty(&ioc->fw_event_list) ||
!ioc->firmware_event_thread || in_interrupt())
return;
while ((fw_event = dequeue_next_fw_event(ioc))) {
/*
* Wait on the fw_event to complete. If this returns 1, then
* the event was never executed, and we need a put for the
* reference the work had on the fw_event.
*
* If it did execute, we wait for it to finish, and the put will
* happen from _firmware_event_work()
*/
if (cancel_work_sync(&fw_event->work))
fw_event_work_put(fw_event);
fw_event_work_put(fw_event);
}
}
/**
* _scsih_internal_device_block - block the sdev device
* @sdev: per device object
* @sas_device_priv_data : per device driver private data
*
* make sure device is blocked without error, if not
* print an error
*/
static void
_scsih_internal_device_block(struct scsi_device *sdev,
struct MPT3SAS_DEVICE *sas_device_priv_data)
{
int r = 0;
sdev_printk(KERN_INFO, sdev, "device_block, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 1;
r = scsi_internal_device_block_nowait(sdev);
if (r == -EINVAL)
sdev_printk(KERN_WARNING, sdev,
"device_block failed with return(%d) for handle(0x%04x)\n",
r, sas_device_priv_data->sas_target->handle);
}
/**
* _scsih_internal_device_unblock - unblock the sdev device
* @sdev: per device object
* @sas_device_priv_data : per device driver private data
* make sure device is unblocked without error, if not retry
* by blocking and then unblocking
*/
static void
_scsih_internal_device_unblock(struct scsi_device *sdev,
struct MPT3SAS_DEVICE *sas_device_priv_data)
{
int r = 0;
sdev_printk(KERN_WARNING, sdev, "device_unblock and setting to running, "
"handle(0x%04x)\n", sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 0;
r = scsi_internal_device_unblock_nowait(sdev, SDEV_RUNNING);
if (r == -EINVAL) {
/* The device has been set to SDEV_RUNNING by SD layer during
* device addition but the request queue is still stopped by
* our earlier block call. We need to perform a block again
* to get the device to SDEV_BLOCK and then to SDEV_RUNNING */
sdev_printk(KERN_WARNING, sdev,
"device_unblock failed with return(%d) for handle(0x%04x) "
"performing a block followed by an unblock\n",
r, sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 1;
r = scsi_internal_device_block_nowait(sdev);
if (r)
sdev_printk(KERN_WARNING, sdev, "retried device_block "
"failed with return(%d) for handle(0x%04x)\n",
r, sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 0;
r = scsi_internal_device_unblock_nowait(sdev, SDEV_RUNNING);
if (r)
sdev_printk(KERN_WARNING, sdev, "retried device_unblock"
" failed with return(%d) for handle(0x%04x)\n",
r, sas_device_priv_data->sas_target->handle);
}
}
/**
* _scsih_ublock_io_all_device - unblock every device
* @ioc: per adapter object
*
* change the device state from block to running
*/
static void
_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (!sas_device_priv_data->block)
continue;
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
"device_running, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle));
_scsih_internal_device_unblock(sdev, sas_device_priv_data);
}
}
/**
* _scsih_ublock_io_device - prepare device to be deleted
* @ioc: per adapter object
* @sas_address: sas address
*
* unblock then put device in offline state
*/
static void
_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->sas_address
!= sas_address)
continue;
if (sas_device_priv_data->block)
_scsih_internal_device_unblock(sdev,
sas_device_priv_data);
}
}
/**
* _scsih_block_io_all_device - set the device state to SDEV_BLOCK
* @ioc: per adapter object
*
* During device pull we need to appropriately set the sdev state.
*/
static void
_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->block)
continue;
if (sas_device_priv_data->ignore_delay_remove) {
sdev_printk(KERN_INFO, sdev,
"%s skip device_block for SES handle(0x%04x)\n",
__func__, sas_device_priv_data->sas_target->handle);
continue;
}
_scsih_internal_device_block(sdev, sas_device_priv_data);
}
}
/**
* _scsih_block_io_device - set the device state to SDEV_BLOCK
* @ioc: per adapter object
* @handle: device handle
*
* During device pull we need to appropriately set the sdev state.
*/
static void
_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
struct _sas_device *sas_device;
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle != handle)
continue;
if (sas_device_priv_data->block)
continue;
if (sas_device && sas_device->pend_sas_rphy_add)
continue;
if (sas_device_priv_data->ignore_delay_remove) {
sdev_printk(KERN_INFO, sdev,
"%s skip device_block for SES handle(0x%04x)\n",
__func__, sas_device_priv_data->sas_target->handle);
continue;
}
_scsih_internal_device_block(sdev, sas_device_priv_data);
}
if (sas_device)
sas_device_put(sas_device);
}
/**
* _scsih_block_io_to_children_attached_to_ex
* @ioc: per adapter object
* @sas_expander: the sas_device object
*
* This routine set sdev state to SDEV_BLOCK for all devices
* attached to this expander. This function called when expander is
* pulled.
*/
static void
_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt3sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
list_for_each_entry(mpt3sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
mpt3sas_port->remote_identify.sas_address);
if (sas_device) {
set_bit(sas_device->handle,
ioc->blocking_handles);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
list_for_each_entry(mpt3sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE) {
expander_sibling =
mpt3sas_scsih_expander_find_by_sas_address(
ioc, mpt3sas_port->remote_identify.sas_address);
_scsih_block_io_to_children_attached_to_ex(ioc,
expander_sibling);
}
}
}
/**
* _scsih_block_io_to_children_attached_directly
* @ioc: per adapter object
* @event_data: topology change event data
*
* This routine set sdev state to SDEV_BLOCK for all devices
* direct attached during device pull.
*/
static void
_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
}
}
/**
* _scsih_block_io_to_pcie_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/reconnect.
*/
static void
_scsih_block_io_to_pcie_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
for (i = 0; i < event_data->NumEntries; i++) {
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PortEntry[i].PortStatus;
if (reason_code ==
MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
}
}
/**
* _scsih_tm_tr_send - send task management request
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt time.
*
* This code is to initiate the device removal handshake protocol
* with controller firmware. This function will issue target reset
* using high priority request queue. It will send a sas iounit
* control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
*
* This is designed to send muliple task management request at the same
* time to the fifo. If the fifo is full, we will append the request,
* and process it in a future completion.
*/
static void
_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
u64 sas_address = 0;
unsigned long flags;
struct _tr_list *delayed_tr;
u32 ioc_state;
u8 tr_method = 0;
if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host in pci error recovery: handle(0x%04x)\n",
__func__, handle));
return;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host is not operational: handle(0x%04x)\n",
__func__, handle));
return;
}
/* if PD, then return */
if (test_bit(handle, ioc->pd_handles))
return;
clear_bit(handle, ioc->pend_os_device_add);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device && sas_device->starget &&
sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
sas_address = sas_device->sas_address;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && pcie_device->starget &&
pcie_device->starget->hostdata) {
sas_target_priv_data = pcie_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
sas_address = pcie_device->wwid;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(
pcie_device->device_info))))
tr_method =
MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
}
if (sas_target_priv_data) {
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
handle, (u64)sas_address));
if (sas_device) {
if (sas_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag:enclosure logical id(0x%016llx), slot(%d)\n",
(u64)sas_device->enclosure_logical_id,
sas_device->slot));
if (sas_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name));
} else if (pcie_device) {
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag:, enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name));
}
_scsih_ublock_io_device(ioc, sas_address);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
goto out;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:tr:handle(0x%04x), (open)\n",
handle));
goto out;
}
dewtprintk(ioc,
ioc_info(ioc, "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid, ioc->tm_tr_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpi_request->MsgFlags = tr_method;
set_bit(handle, ioc->device_remove_in_progress);
ioc->put_smid_hi_priority(ioc, smid, 0);
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
out:
if (sas_device)
sas_device_put(sas_device);
if (pcie_device)
pcie_device_put(pcie_device);
}
/**
* _scsih_tm_tr_complete -
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* This is the target reset completion routine.
* This code is part of the code to initiate the device removal
* handshake protocol with controller firmware.
* It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply)
{
u16 handle;
Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Mpi2SCSITaskManagementReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
Mpi2SasIoUnitControlRequest_t *mpi_request;
u16 smid_sas_ctrl;
u32 ioc_state;
struct _sc_list *delayed_sc;
if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host in pci error recovery\n",
__func__));
return 1;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host is not operational\n",
__func__));
return 1;
}
if (unlikely(!mpi_reply)) {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
handle = le16_to_cpu(mpi_request_tm->DevHandle);
if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
dewtprintk(ioc,
ioc_err(ioc, "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
handle,
le16_to_cpu(mpi_reply->DevHandle), smid));
return 0;
}
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
dewtprintk(ioc,
ioc_info(ioc, "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), loginfo(0x%08x), completed(%d)\n",
handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
if (!smid_sas_ctrl) {
delayed_sc = kzalloc(sizeof(*delayed_sc), GFP_ATOMIC);
if (!delayed_sc)
return _scsih_check_for_pending_tm(ioc, smid);
INIT_LIST_HEAD(&delayed_sc->list);
delayed_sc->handle = le16_to_cpu(mpi_request_tm->DevHandle);
list_add_tail(&delayed_sc->list, &ioc->delayed_sc_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:sc:handle(0x%04x), (open)\n",
handle));
return _scsih_check_for_pending_tm(ioc, smid);
}
dewtprintk(ioc,
ioc_info(ioc, "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid_sas_ctrl, ioc->tm_sas_control_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request->DevHandle = mpi_request_tm->DevHandle;
ioc->put_smid_default(ioc, smid_sas_ctrl);
return _scsih_check_for_pending_tm(ioc, smid);
}
/** _scsih_allow_scmd_to_device - check whether scmd needs to
* issue to IOC or not.
* @ioc: per adapter object
* @scmd: pointer to scsi command object
*
* Returns true if scmd can be issued to IOC otherwise returns false.
*/
inline bool _scsih_allow_scmd_to_device(struct MPT3SAS_ADAPTER *ioc,
struct scsi_cmnd *scmd)
{
if (ioc->pci_error_recovery)
return false;
if (ioc->hba_mpi_version_belonged == MPI2_VERSION) {
if (ioc->remove_host)
return false;
return true;
}
if (ioc->remove_host) {
switch (scmd->cmnd[0]) {
case SYNCHRONIZE_CACHE:
case START_STOP:
return true;
default:
return false;
}
}
return true;
}
/**
* _scsih_sas_control_complete - completion routine
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* This is the sas iounit control completion routine.
* This code is part of the code to initiate the device removal
* handshake protocol with controller firmware.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u8 msix_index, u32 reply)
{
Mpi2SasIoUnitControlReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (likely(mpi_reply)) {
dewtprintk(ioc,
ioc_info(ioc, "sc_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply->DevHandle), smid,
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo)));
if (le16_to_cpu(mpi_reply->IOCStatus) ==
MPI2_IOCSTATUS_SUCCESS) {
clear_bit(le16_to_cpu(mpi_reply->DevHandle),
ioc->device_remove_in_progress);
}
} else {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
}
return mpt3sas_check_for_pending_internal_cmds(ioc, smid);
}
/**
* _scsih_tm_tr_volume_send - send target reset request for volumes
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt time.
*
* This is designed to send muliple task management request at the same
* time to the fifo. If the fifo is full, we will append the request,
* and process it in a future completion.
*/
static void
_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
struct _tr_list *delayed_tr;
if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host reset in progress!\n",
__func__));
return;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
return;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:tr:handle(0x%04x), (open)\n",
handle));
return;
}
dewtprintk(ioc,
ioc_info(ioc, "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid, ioc->tm_tr_volume_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
ioc->put_smid_hi_priority(ioc, smid, 0);
}
/**
* _scsih_tm_volume_tr_complete - target reset completion
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u8 msix_index, u32 reply)
{
u16 handle;
Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Mpi2SCSITaskManagementReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (ioc->shost_recovery || ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host reset in progress!\n",
__func__));
return 1;
}
if (unlikely(!mpi_reply)) {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
handle = le16_to_cpu(mpi_request_tm->DevHandle);
if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
dewtprintk(ioc,
ioc_err(ioc, "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
handle, le16_to_cpu(mpi_reply->DevHandle),
smid));
return 0;
}
dewtprintk(ioc,
ioc_info(ioc, "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), loginfo(0x%08x), completed(%d)\n",
handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
return _scsih_check_for_pending_tm(ioc, smid);
}
/**
* _scsih_issue_delayed_event_ack - issue delayed Event ACK messages
* @ioc: per adapter object
* @smid: system request message index
* @event: Event ID
* @event_context: used to track events uniquely
*
* Context - processed in interrupt context.
*/
static void
_scsih_issue_delayed_event_ack(struct MPT3SAS_ADAPTER *ioc, u16 smid, U16 event,
U32 event_context)
{
Mpi2EventAckRequest_t *ack_request;
int i = smid - ioc->internal_smid;
unsigned long flags;
/* Without releasing the smid just update the
* call back index and reuse the same smid for
* processing this delayed request
*/
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->internal_lookup[i].cb_idx = ioc->base_cb_idx;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
dewtprintk(ioc,
ioc_info(ioc, "EVENT ACK: event(0x%04x), smid(%d), cb(%d)\n",
le16_to_cpu(event), smid, ioc->base_cb_idx));
ack_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
ack_request->Event = event;
ack_request->EventContext = event_context;
ack_request->VF_ID = 0; /* TODO */
ack_request->VP_ID = 0;
ioc->put_smid_default(ioc, smid);
}
/**
* _scsih_issue_delayed_sas_io_unit_ctrl - issue delayed
* sas_io_unit_ctrl messages
* @ioc: per adapter object
* @smid: system request message index
* @handle: device handle
*
* Context - processed in interrupt context.
*/
static void
_scsih_issue_delayed_sas_io_unit_ctrl(struct MPT3SAS_ADAPTER *ioc,
u16 smid, u16 handle)
{
Mpi2SasIoUnitControlRequest_t *mpi_request;
u32 ioc_state;
int i = smid - ioc->internal_smid;
unsigned long flags;
if (ioc->remove_host) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host has been removed\n",
__func__));
return;
} else if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host in pci error recovery\n",
__func__));
return;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host is not operational\n",
__func__));
return;
}
/* Without releasing the smid just update the
* call back index and reuse the same smid for
* processing this delayed request
*/
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->internal_lookup[i].cb_idx = ioc->tm_sas_control_cb_idx;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
dewtprintk(ioc,
ioc_info(ioc, "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid, ioc->tm_sas_control_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
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 = cpu_to_le16(handle);
ioc->put_smid_default(ioc, smid);
}
/**
* _scsih_check_for_pending_internal_cmds - check for pending internal messages
* @ioc: per adapter object
* @smid: system request message index
*
* Context: Executed in interrupt context
*
* This will check delayed internal messages list, and process the
* next request.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
u8
mpt3sas_check_for_pending_internal_cmds(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct _sc_list *delayed_sc;
struct _event_ack_list *delayed_event_ack;
if (!list_empty(&ioc->delayed_event_ack_list)) {
delayed_event_ack = list_entry(ioc->delayed_event_ack_list.next,
struct _event_ack_list, list);
_scsih_issue_delayed_event_ack(ioc, smid,
delayed_event_ack->Event, delayed_event_ack->EventContext);
list_del(&delayed_event_ack->list);
kfree(delayed_event_ack);
return 0;
}
if (!list_empty(&ioc->delayed_sc_list)) {
delayed_sc = list_entry(ioc->delayed_sc_list.next,
struct _sc_list, list);
_scsih_issue_delayed_sas_io_unit_ctrl(ioc, smid,
delayed_sc->handle);
list_del(&delayed_sc->list);
kfree(delayed_sc);
return 0;
}
return 1;
}
/**
* _scsih_check_for_pending_tm - check for pending task management
* @ioc: per adapter object
* @smid: system request message index
*
* This will check delayed target reset list, and feed the
* next reqeust.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct _tr_list *delayed_tr;
if (!list_empty(&ioc->delayed_tr_volume_list)) {
delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
struct _tr_list, list);
mpt3sas_base_free_smid(ioc, smid);
_scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
list_del(&delayed_tr->list);
kfree(delayed_tr);
return 0;
}
if (!list_empty(&ioc->delayed_tr_list)) {
delayed_tr = list_entry(ioc->delayed_tr_list.next,
struct _tr_list, list);
mpt3sas_base_free_smid(ioc, smid);
_scsih_tm_tr_send(ioc, delayed_tr->handle);
list_del(&delayed_tr->list);
kfree(delayed_tr);
return 0;
}
return 1;
}
/**
* _scsih_check_topo_delete_events - sanity check on topo events
* @ioc: per adapter object
* @event_data: the event data payload
*
* This routine added to better handle cable breaker.
*
* This handles the case where driver receives multiple expander
* add and delete events in a single shot. When there is a delete event
* the routine will void any pending add events waiting in the event queue.
*/
static void
_scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
struct fw_event_work *fw_event;
Mpi2EventDataSasTopologyChangeList_t *local_event_data;
u16 expander_handle;
struct _sas_node *sas_expander;
unsigned long flags;
int i, reason_code;
u16 handle;
for (i = 0 ; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
_scsih_tm_tr_send(ioc, handle);
}
expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
if (expander_handle < ioc->sas_hba.num_phys) {
_scsih_block_io_to_children_attached_directly(ioc, event_data);
return;
}
if (event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
/* put expander attached devices into blocking state */
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
expander_handle);
_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
do {
handle = find_first_bit(ioc->blocking_handles,
ioc->facts.MaxDevHandle);
if (handle < ioc->facts.MaxDevHandle)
_scsih_block_io_device(ioc, handle);
} while (test_and_clear_bit(handle, ioc->blocking_handles));
} else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
_scsih_block_io_to_children_attached_directly(ioc, event_data);
if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
return;
/* mark ignore flag for pending events */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
fw_event->ignore)
continue;
local_event_data = (Mpi2EventDataSasTopologyChangeList_t *)
fw_event->event_data;
if (local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_ADDED ||
local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
expander_handle) {
dewtprintk(ioc,
ioc_info(ioc, "setting ignoring flag\n"));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_check_pcie_topo_remove_events - sanity check on topo
* events
* @ioc: per adapter object
* @event_data: the event data payload
*
* This handles the case where driver receives multiple switch
* or device 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.
*/
static void
_scsih_check_pcie_topo_remove_events(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeTopologyChangeList_t *event_data)
{
struct fw_event_work *fw_event;
Mpi26EventDataPCIeTopologyChangeList_t *local_event_data;
unsigned long flags;
int i, reason_code;
u16 handle, switch_handle;
for (i = 0; i < event_data->NumEntries; i++) {
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PortEntry[i].PortStatus;
if (reason_code == MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING)
_scsih_tm_tr_send(ioc, handle);
}
switch_handle = le16_to_cpu(event_data->SwitchDevHandle);
if (!switch_handle) {
_scsih_block_io_to_pcie_children_attached_directly(
ioc, event_data);
return;
}
/* TODO We are not supporting cascaded PCIe Switch removal yet*/
if ((event_data->SwitchStatus
== MPI26_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING) ||
(event_data->SwitchStatus ==
MPI26_EVENT_PCIE_TOPO_SS_RESPONDING))
_scsih_block_io_to_pcie_children_attached_directly(
ioc, event_data);
if (event_data->SwitchStatus != 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_PCIE_TOPOLOGY_CHANGE_LIST ||
fw_event->ignore)
continue;
local_event_data =
(Mpi26EventDataPCIeTopologyChangeList_t *)
fw_event->event_data;
if (local_event_data->SwitchStatus ==
MPI2_EVENT_SAS_TOPO_ES_ADDED ||
local_event_data->SwitchStatus ==
MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
if (le16_to_cpu(local_event_data->SwitchDevHandle) ==
switch_handle) {
dewtprintk(ioc,
ioc_info(ioc, "setting ignoring flag for switch event\n"));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_set_volume_delete_flag - setting volume delete flag
* @ioc: per adapter object
* @handle: device handle
*
* This returns nothing.
*/
static void
_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
if (raid_device && raid_device->starget &&
raid_device->starget->hostdata) {
sas_target_priv_data =
raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: handle(0x%04x), wwid(0x%016llx)\n",
handle, (u64)raid_device->wwid));
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_set_volume_handle_for_tr - set handle for target reset to volume
* @handle: input handle
* @a: handle for volume a
* @b: handle for volume b
*
* IR firmware only supports two raid volumes. The purpose of this
* routine is to set the volume handle in either a or b. When the given
* input handle is non-zero, or when a and b have not been set before.
*/
static void
_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
{
if (!handle || handle == *a || handle == *b)
return;
if (!*a)
*a = handle;
else if (!*b)
*b = handle;
}
/**
* _scsih_check_ir_config_unhide_events - check for UNHIDE events
* @ioc: per adapter object
* @event_data: the event data payload
* Context: interrupt time.
*
* This routine will send target reset to volume, followed by target
* resets to the PDs. This is called when a PD has been removed, or
* volume has been deleted or removed. When the target reset is sent
* to volume, the PD target resets need to be queued to start upon
* completion of the volume target reset.
*/
static void
_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
int i;
u16 handle, volume_handle, a, b;
struct _tr_list *delayed_tr;
a = 0;
b = 0;
if (ioc->is_warpdrive)
return;
/* Volume Resets for Deleted or Removed */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
continue;
if (element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
volume_handle = le16_to_cpu(element->VolDevHandle);
_scsih_set_volume_delete_flag(ioc, volume_handle);
_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
}
}
/* Volume Resets for UNHIDE events */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
continue;
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
volume_handle = le16_to_cpu(element->VolDevHandle);
_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
}
}
if (a)
_scsih_tm_tr_volume_send(ioc, a);
if (b)
_scsih_tm_tr_volume_send(ioc, b);
/* PD target resets */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
continue;
handle = le16_to_cpu(element->PhysDiskDevHandle);
volume_handle = le16_to_cpu(element->VolDevHandle);
clear_bit(handle, ioc->pd_handles);
if (!volume_handle)
_scsih_tm_tr_send(ioc, handle);
else if (volume_handle == a || volume_handle == b) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
BUG_ON(!delayed_tr);
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:tr:handle(0x%04x), (open)\n",
handle));
} else
_scsih_tm_tr_send(ioc, handle);
}
}
/**
* _scsih_check_volume_delete_events - set delete flag for volumes
* @ioc: per adapter object
* @event_data: the event data payload
* Context: interrupt time.
*
* This will handle the case when the cable connected to entire volume is
* pulled. We will take care of setting the deleted flag so normal IO will
* not be sent.
*/
static void
_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrVolume_t *event_data)
{
u32 state;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
state = le32_to_cpu(event_data->NewValue);
if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
MPI2_RAID_VOL_STATE_FAILED)
_scsih_set_volume_delete_flag(ioc,
le16_to_cpu(event_data->VolDevHandle));
}
/**
* _scsih_temp_threshold_events - display temperature threshold exceeded events
* @ioc: per adapter object
* @event_data: the temp threshold event data
* Context: interrupt time.
*/
static void
_scsih_temp_threshold_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataTemperature_t *event_data)
{
u32 doorbell;
if (ioc->temp_sensors_count >= event_data->SensorNum) {
ioc_err(ioc, "Temperature Threshold flags %s%s%s%s exceeded for Sensor: %d !!!\n",
le16_to_cpu(event_data->Status) & 0x1 ? "0 " : " ",
le16_to_cpu(event_data->Status) & 0x2 ? "1 " : " ",
le16_to_cpu(event_data->Status) & 0x4 ? "2 " : " ",
le16_to_cpu(event_data->Status) & 0x8 ? "3 " : " ",
event_data->SensorNum);
ioc_err(ioc, "Current Temp In Celsius: %d\n",
event_data->CurrentTemperature);
if (ioc->hba_mpi_version_belonged != MPI2_VERSION) {
doorbell = mpt3sas_base_get_iocstate(ioc, 0);
if ((doorbell & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_FAULT) {
mpt3sas_print_fault_code(ioc,
doorbell & MPI2_DOORBELL_DATA_MASK);
} else if ((doorbell & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_COREDUMP) {
mpt3sas_print_coredump_info(ioc,
doorbell & MPI2_DOORBELL_DATA_MASK);
}
}
}
}
static int _scsih_set_satl_pending(struct scsi_cmnd *scmd, bool pending)
{
struct MPT3SAS_DEVICE *priv = scmd->device->hostdata;
if (scmd->cmnd[0] != ATA_12 && scmd->cmnd[0] != ATA_16)
return 0;
if (pending)
return test_and_set_bit(0, &priv->ata_command_pending);
clear_bit(0, &priv->ata_command_pending);
return 0;
}
/**
* _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.
*/
static void
_scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
{
struct scsi_cmnd *scmd;
struct scsiio_tracker *st;
u16 smid;
int count = 0;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
count++;
_scsih_set_satl_pending(scmd, false);
st = scsi_cmd_priv(scmd);
mpt3sas_base_clear_st(ioc, st);
scsi_dma_unmap(scmd);
if (ioc->pci_error_recovery || ioc->remove_host)
scmd->result = DID_NO_CONNECT << 16;
else
scmd->result = DID_RESET << 16;
scmd->scsi_done(scmd);
}
dtmprintk(ioc, ioc_info(ioc, "completing %d cmds\n", count));
}
/**
* _scsih_setup_eedp - setup MPI request for EEDP transfer
* @ioc: per adapter object
* @scmd: pointer to scsi command object
* @mpi_request: pointer to the SCSI_IO request message frame
*
* Supporting protection 1 and 3.
*/
static void
_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi25SCSIIORequest_t *mpi_request)
{
u16 eedp_flags;
unsigned char prot_op = scsi_get_prot_op(scmd);
unsigned char prot_type = scsi_get_prot_type(scmd);
Mpi25SCSIIORequest_t *mpi_request_3v =
(Mpi25SCSIIORequest_t *)mpi_request;
if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
return;
if (prot_op == SCSI_PROT_READ_STRIP)
eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
else if (prot_op == SCSI_PROT_WRITE_INSERT)
eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
else
return;
switch (prot_type) {
case SCSI_PROT_DIF_TYPE1:
case SCSI_PROT_DIF_TYPE2:
/*
* enable ref/guard checking
* auto increment ref tag
*/
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
mpi_request->CDB.EEDP32.PrimaryReferenceTag =
cpu_to_be32(t10_pi_ref_tag(scmd->request));
break;
case SCSI_PROT_DIF_TYPE3:
/*
* enable guard checking
*/
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
break;
}
mpi_request_3v->EEDPBlockSize =
cpu_to_le16(scmd->device->sector_size);
if (ioc->is_gen35_ioc)
eedp_flags |= MPI25_SCSIIO_EEDPFLAGS_APPTAG_DISABLE_MODE;
mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
}
/**
* _scsih_eedp_error_handling - return sense code for EEDP errors
* @scmd: pointer to scsi command object
* @ioc_status: ioc status
*/
static void
_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
{
u8 ascq;
switch (ioc_status) {
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
ascq = 0x01;
break;
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
ascq = 0x02;
break;
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
ascq = 0x03;
break;
default:
ascq = 0x00;
break;
}
scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
ascq);
scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
SAM_STAT_CHECK_CONDITION;
}
/**
* scsih_qcmd - main scsi request entry point
* @shost: SCSI host pointer
* @scmd: pointer to scsi command object
*
* The callback index is set inside `ioc->scsi_io_cb_idx`.
*
* Return: 0 on success. If there's a failure, return either:
* SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
* SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
*/
static int
scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _raid_device *raid_device;
struct request *rq = scmd->request;
int class;
Mpi25SCSIIORequest_t *mpi_request;
struct _pcie_device *pcie_device = NULL;
u32 mpi_control;
u16 smid;
u16 handle;
if (ioc->logging_level & MPT_DEBUG_SCSI)
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
if (!(_scsih_allow_scmd_to_device(ioc, scmd))) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
sas_target_priv_data = sas_device_priv_data->sas_target;
/* invalid device handle */
handle = sas_target_priv_data->handle;
if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
}
if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
/* host recovery or link resets sent via IOCTLs */
return SCSI_MLQUEUE_HOST_BUSY;
} else if (sas_target_priv_data->deleted) {
/* device has been deleted */
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
} else if (sas_target_priv_data->tm_busy ||
sas_device_priv_data->block) {
/* device busy with task management */
return SCSI_MLQUEUE_DEVICE_BUSY;
}
/*
* Bug work around for firmware SATL handling. The loop
* is based on atomic operations and ensures consistency
* since we're lockless at this point
*/
do {
if (test_bit(0, &sas_device_priv_data->ata_command_pending))
return SCSI_MLQUEUE_DEVICE_BUSY;
} while (_scsih_set_satl_pending(scmd, true));
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 */
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
/* NCQ Prio supported, make sure control indicated high priority */
if (sas_device_priv_data->ncq_prio_enable) {
class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq));
if (class == IOPRIO_CLASS_RT)
mpi_control |= 1 << MPI2_SCSIIO_CONTROL_CMDPRI_SHIFT;
}
/* Make sure Device is not raid volume.
* We do not expose raid functionality to upper layer for warpdrive.
*/
if (((!ioc->is_warpdrive && !scsih_is_raid(&scmd->device->sdev_gendev))
&& !scsih_is_nvme(&scmd->device->sdev_gendev))
&& sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
_scsih_set_satl_pending(scmd, false);
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, ioc->request_sz);
_scsih_setup_eedp(ioc, scmd, mpi_request);
if (scmd->cmd_len == 32)
mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
else
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
mpi_request->Control = cpu_to_le32(mpi_control);
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
mpi_request->SenseBufferLowAddress =
mpt3sas_base_get_sense_buffer_dma(ioc, smid);
mpi_request->SGLOffset0 = offsetof(Mpi25SCSIIORequest_t, SGL) / 4;
int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
mpi_request->LUN);
memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
if (mpi_request->DataLength) {
pcie_device = sas_target_priv_data->pcie_dev;
if (ioc->build_sg_scmd(ioc, scmd, smid, pcie_device)) {
mpt3sas_base_free_smid(ioc, smid);
_scsih_set_satl_pending(scmd, false);
goto out;
}
} else
ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
raid_device = sas_target_priv_data->raid_device;
if (raid_device && raid_device->direct_io_enabled)
mpt3sas_setup_direct_io(ioc, scmd,
raid_device, mpi_request);
if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
MPI25_SCSIIO_IOFLAGS_FAST_PATH);
ioc->put_smid_fast_path(ioc, smid, handle);
} else
ioc->put_smid_scsi_io(ioc, smid,
le16_to_cpu(mpi_request->DevHandle));
} else
ioc->put_smid_default(ioc, smid);
return 0;
out:
return SCSI_MLQUEUE_HOST_BUSY;
}
/**
* _scsih_normalize_sense - normalize descriptor and fixed format sense data
* @sense_buffer: sense data returned by target
* @data: normalized skey/asc/ascq
*/
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];
}
}
/**
* _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
* @smid: ?
*
* 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
*/
static void
_scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
{
u32 response_info;
u8 *response_bytes;
u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
MPI2_IOCSTATUS_MASK;
u8 scsi_state = mpi_reply->SCSIState;
u8 scsi_status = mpi_reply->SCSIStatus;
char *desc_ioc_state = NULL;
char *desc_scsi_status = NULL;
char *desc_scsi_state = ioc->tmp_string;
u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *priv_target = starget->hostdata;
char *device_str = NULL;
if (!priv_target)
return;
if (ioc->hide_ir_msg)
device_str = "WarpDrive";
else
device_str = "volume";
if (log_info == 0x31170000)
return;
switch (ioc_status) {
case MPI2_IOCSTATUS_SUCCESS:
desc_ioc_state = "success";
break;
case MPI2_IOCSTATUS_INVALID_FUNCTION:
desc_ioc_state = "invalid function";
break;
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
desc_ioc_state = "scsi recovered error";
break;
case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
desc_ioc_state = "scsi invalid dev handle";
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
desc_ioc_state = "scsi device not there";
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
desc_ioc_state = "scsi data overrun";
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
desc_ioc_state = "scsi data underrun";
break;
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
desc_ioc_state = "scsi io data error";
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
desc_ioc_state = "scsi protocol error";
break;
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
desc_ioc_state = "scsi task terminated";
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
desc_ioc_state = "scsi residual mismatch";
break;
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
desc_ioc_state = "scsi task mgmt failed";
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
desc_ioc_state = "scsi ioc terminated";
break;
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
desc_ioc_state = "scsi ext terminated";
break;
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
desc_ioc_state = "eedp guard error";
break;
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
desc_ioc_state = "eedp ref tag error";
break;
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
desc_ioc_state = "eedp app tag error";
break;
case MPI2_IOCSTATUS_INSUFFICIENT_POWER:
desc_ioc_state = "insufficient power";
break;
default:
desc_ioc_state = "unknown";
break;
}
switch (scsi_status) {
case MPI2_SCSI_STATUS_GOOD:
desc_scsi_status = "good";
break;
case MPI2_SCSI_STATUS_CHECK_CONDITION:
desc_scsi_status = "check condition";
break;
case MPI2_SCSI_STATUS_CONDITION_MET:
desc_scsi_status = "condition met";
break;
case MPI2_SCSI_STATUS_BUSY:
desc_scsi_status = "busy";
break;
case MPI2_SCSI_STATUS_INTERMEDIATE:
desc_scsi_status = "intermediate";
break;
case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
desc_scsi_status = "intermediate condmet";
break;
case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
desc_scsi_status = "reservation conflict";
break;
case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
desc_scsi_status = "command terminated";
break;
case MPI2_SCSI_STATUS_TASK_SET_FULL:
desc_scsi_status = "task set full";
break;
case MPI2_SCSI_STATUS_ACA_ACTIVE:
desc_scsi_status = "aca active";
break;
case MPI2_SCSI_STATUS_TASK_ABORTED:
desc_scsi_status = "task aborted";
break;
default:
desc_scsi_status = "unknown";
break;
}
desc_scsi_state[0] = '\0';
if (!scsi_state)
desc_scsi_state = " ";
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
strcat(desc_scsi_state, "response info ");
if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
strcat(desc_scsi_state, "state terminated ");
if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
strcat(desc_scsi_state, "no status ");
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
strcat(desc_scsi_state, "autosense failed ");
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
strcat(desc_scsi_state, "autosense valid ");
scsi_print_command(scmd);
if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
ioc_warn(ioc, "\t%s wwid(0x%016llx)\n",
device_str, (u64)priv_target->sas_address);
} else if (priv_target->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
pcie_device = mpt3sas_get_pdev_from_target(ioc, priv_target);
if (pcie_device) {
ioc_info(ioc, "\twwid(0x%016llx), port(%d)\n",
(u64)pcie_device->wwid, pcie_device->port_num);
if (pcie_device->enclosure_handle != 0)
ioc_info(ioc, "\tenclosure logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0])
ioc_info(ioc, "\tenclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
pcie_device_put(pcie_device);
}
} else {
sas_device = mpt3sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
ioc_warn(ioc, "\tsas_address(0x%016llx), phy(%d)\n",
(u64)sas_device->sas_address, sas_device->phy);
_scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL);
sas_device_put(sas_device);
}
}
ioc_warn(ioc, "\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
le16_to_cpu(mpi_reply->DevHandle),
desc_ioc_state, ioc_status, smid);
ioc_warn(ioc, "\trequest_len(%d), underflow(%d), resid(%d)\n",
scsi_bufflen(scmd), scmd->underflow, scsi_get_resid(scmd));
ioc_warn(ioc, "\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n",
le16_to_cpu(mpi_reply->TaskTag),
le32_to_cpu(mpi_reply->TransferCount), scmd->result);
ioc_warn(ioc, "\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n",
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);
ioc_warn(ioc, "\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
data.skey, data.asc, data.ascq,
le32_to_cpu(mpi_reply->SenseCount));
}
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
response_info = le32_to_cpu(mpi_reply->ResponseInfo);
response_bytes = (u8 *)&response_info;
_scsih_response_code(ioc, response_bytes[0]);
}
}
/**
* _scsih_turn_on_pfa_led - illuminate PFA LED
* @ioc: per adapter object
* @handle: device handle
* Context: process
*/
static void
_scsih_turn_on_pfa_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
struct _sas_device *sas_device;
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (!sas_device)
return;
memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
mpi_request.SlotStatus =
cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
mpi_request.DevHandle = cpu_to_le16(handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
sas_device->pfa_led_on = 1;
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc,
ioc_info(ioc, "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
goto out;
}
out:
sas_device_put(sas_device);
}
/**
* _scsih_turn_off_pfa_led - turn off Fault LED
* @ioc: per adapter object
* @sas_device: sas device whose PFA LED has to turned off
* Context: process
*/
static void
_scsih_turn_off_pfa_led(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
mpi_request.SlotStatus = 0;
mpi_request.Slot = cpu_to_le16(sas_device->slot);
mpi_request.DevHandle = 0;
mpi_request.EnclosureHandle = cpu_to_le16(sas_device->enclosure_handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_ENCLOSURE_SLOT_ADDRESS;
if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc,
ioc_info(ioc, "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
return;
}
}
/**
* _scsih_send_event_to_turn_on_pfa_led - fire delayed event
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt.
*/
static void
_scsih_send_event_to_turn_on_pfa_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct fw_event_work *fw_event;
fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT3SAS_TURN_ON_PFA_LED;
fw_event->device_handle = handle;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
/**
* _scsih_smart_predicted_fault - process smart errors
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt.
*/
static void
_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
Mpi2EventNotificationReply_t *event_reply;
Mpi2EventDataSasDeviceStatusChange_t *event_data;
struct _sas_device *sas_device;
ssize_t sz;
unsigned long flags;
/* only handle non-raid devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (!sas_device)
goto out_unlock;
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)))
goto out_unlock;
_scsih_display_enclosure_chassis_info(NULL, sas_device, NULL, starget);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
_scsih_send_event_to_turn_on_pfa_led(ioc, handle);
/* insert into event log */
sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
sizeof(Mpi2EventDataSasDeviceStatusChange_t);
event_reply = kzalloc(sz, GFP_ATOMIC);
if (!event_reply) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
event_reply->Event =
cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
event_reply->MsgLength = sz/4;
event_reply->EventDataLength =
cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
event_reply->EventData;
event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
event_data->ASC = 0x5D;
event_data->DevHandle = cpu_to_le16(handle);
event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
mpt3sas_ctl_add_to_event_log(ioc, event_reply);
kfree(event_reply);
out:
if (sas_device)
sas_device_put(sas_device);
return;
out_unlock:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
goto out;
}
/**
* _scsih_io_done - scsi request callback
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when using _scsih_qcmd.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
Mpi25SCSIIORequest_t *mpi_request;
Mpi2SCSIIOReply_t *mpi_reply;
struct scsi_cmnd *scmd;
struct scsiio_tracker *st;
u16 ioc_status;
u32 xfer_cnt;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
struct MPT3SAS_DEVICE *sas_device_priv_data;
u32 response_code = 0;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (scmd == NULL)
return 1;
_scsih_set_satl_pending(scmd, false);
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
if (mpi_reply == NULL) {
scmd->result = DID_OK << 16;
goto out;
}
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
sas_device_priv_data->sas_target->deleted) {
scmd->result = DID_NO_CONNECT << 16;
goto out;
}
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
/*
* WARPDRIVE: If direct_io is set then it is directIO,
* the failed direct I/O should be redirected to volume
*/
st = scsi_cmd_priv(scmd);
if (st->direct_io &&
((ioc_status & MPI2_IOCSTATUS_MASK)
!= MPI2_IOCSTATUS_SCSI_TASK_TERMINATED)) {
st->direct_io = 0;
st->scmd = scmd;
memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
mpi_request->DevHandle =
cpu_to_le16(sas_device_priv_data->sas_target->handle);
ioc->put_smid_scsi_io(ioc, smid,
sas_device_priv_data->sas_target->handle);
return 0;
}
/* turning off TLR */
scsi_state = mpi_reply->SCSIState;
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
response_code =
le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
if (!sas_device_priv_data->tlr_snoop_check) {
sas_device_priv_data->tlr_snoop_check++;
if ((!ioc->is_warpdrive &&
!scsih_is_raid(&scmd->device->sdev_gendev) &&
!scsih_is_nvme(&scmd->device->sdev_gendev))
&& sas_is_tlr_enabled(scmd->device) &&
response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
sas_disable_tlr(scmd->device);
sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
}
}
xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
else
log_info = 0;
ioc_status &= MPI2_IOCSTATUS_MASK;
scsi_status = mpi_reply->SCSIStatus;
if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
(scsi_status == MPI2_SCSI_STATUS_BUSY ||
scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
ioc_status = MPI2_IOCSTATUS_SUCCESS;
}
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
const void *sense_data = mpt3sas_base_get_sense_buffer(ioc,
smid);
u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
le32_to_cpu(mpi_reply->SenseCount));
memcpy(scmd->sense_buffer, sense_data, sz);
_scsih_normalize_sense(scmd->sense_buffer, &data);
/* failure prediction threshold exceeded */
if (data.asc == 0x5D)
_scsih_smart_predicted_fault(ioc,
le16_to_cpu(mpi_reply->DevHandle));
mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
if ((ioc->logging_level & MPT_DEBUG_REPLY) &&
((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
(scmd->sense_buffer[2] == MEDIUM_ERROR) ||
(scmd->sense_buffer[2] == HARDWARE_ERROR)))
_scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid);
}
switch (ioc_status) {
case MPI2_IOCSTATUS_BUSY:
case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
scmd->result = SAM_STAT_BUSY;
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
scmd->result = DID_NO_CONNECT << 16;
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
if (sas_device_priv_data->block) {
scmd->result = DID_TRANSPORT_DISRUPTED << 16;
goto out;
}
if (log_info == 0x31110630) {
if (scmd->retries > 2) {
scmd->result = DID_NO_CONNECT << 16;
scsi_device_set_state(scmd->device,
SDEV_OFFLINE);
} else {
scmd->result = DID_SOFT_ERROR << 16;
scmd->device->expecting_cc_ua = 1;
}
break;
} else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
scmd->result = DID_RESET << 16;
break;
} else if ((scmd->device->channel == RAID_CHANNEL) &&
(scsi_state == (MPI2_SCSI_STATE_TERMINATED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))) {
scmd->result = DID_RESET << 16;
break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
scmd->result = DID_SOFT_ERROR << 16;
else
scmd->result = (DID_OK << 16) | scsi_status;
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
scmd->result = (DID_OK << 16) | scsi_status;
if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
break;
if (xfer_cnt < scmd->underflow) {
if (scsi_status == SAM_STAT_BUSY)
scmd->result = SAM_STAT_BUSY;
else
scmd->result = DID_SOFT_ERROR << 16;
} else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
scmd->result = (DRIVER_SENSE << 24) |
SAM_STAT_CHECK_CONDITION;
scmd->sense_buffer[0] = 0x70;
scmd->sense_buffer[2] = ILLEGAL_REQUEST;
scmd->sense_buffer[12] = 0x20;
scmd->sense_buffer[13] = 0;
}
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
scsi_set_resid(scmd, 0);
/* fall through */
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
case MPI2_IOCSTATUS_SUCCESS:
scmd->result = (DID_OK << 16) | scsi_status;
if (response_code ==
MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
(scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS)))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
_scsih_eedp_error_handling(scmd, ioc_status);
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
case MPI2_IOCSTATUS_INVALID_FUNCTION:
case MPI2_IOCSTATUS_INVALID_SGL:
case MPI2_IOCSTATUS_INTERNAL_ERROR:
case MPI2_IOCSTATUS_INVALID_FIELD:
case MPI2_IOCSTATUS_INVALID_STATE:
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
case MPI2_IOCSTATUS_INSUFFICIENT_POWER:
default:
scmd->result = DID_SOFT_ERROR << 16;
break;
}
if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
_scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
out:
scsi_dma_unmap(scmd);
mpt3sas_base_free_smid(ioc, smid);
scmd->scsi_done(scmd);
return 0;
}
/**
* _scsih_sas_host_refresh - refreshing sas host object contents
* @ioc: per adapter object
* Context: user
*
* During port enable, fw will send topology events for every device. Its
* possible that the handles may change from the previous setting, so this
* code keeping handles updating if changed.
*/
static void
_scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc)
{
u16 sz;
u16 ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
u16 attached_handle;
u8 link_rate;
dtmprintk(ioc,
ioc_info(ioc, "updating handles for sas_host(0x%016llx)\n",
(u64)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) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz)) != 0)
goto out;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
goto out;
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
if (i == 0)
ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
PhyData[0].ControllerDevHandle);
ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
AttachedDevHandle);
if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
attached_handle, i, link_rate);
}
out:
kfree(sas_iounit_pg0);
}
/**
* _scsih_sas_host_add - create sas host object
* @ioc: per adapter object
*
* Creating host side data object, stored in ioc->sas_hba
*/
static void
_scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc)
{
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
Mpi2SasPhyPage0_t phy_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2SasEnclosurePage0_t enclosure_pg0;
u16 ioc_status;
u16 sz;
u8 device_missing_delay;
u8 num_phys;
mpt3sas_config_get_number_hba_phys(ioc, &num_phys);
if (!num_phys) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc->sas_hba.phy = kcalloc(num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!ioc->sas_hba.phy) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.num_phys = num_phys;
/* 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) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__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) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
sas_iounit_pg1, sz))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc->io_missing_delay =
sas_iounit_pg1->IODeviceMissingDelay;
device_missing_delay =
sas_iounit_pg1->ReportDeviceMissingDelay;
if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
ioc->device_missing_delay = (device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
else
ioc->device_missing_delay = device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
i))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (i == 0)
ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
PhyData[0].ControllerDevHandle);
ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
ioc->sas_hba.phy[i].phy_id = i;
mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
phy_pg0, ioc->sas_hba.parent_dev);
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
ioc_info(ioc, "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
ioc->sas_hba.handle,
(u64)ioc->sas_hba.sas_address,
ioc->sas_hba.num_phys);
if (ioc->sas_hba.enclosure_handle) {
if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
ioc->sas_hba.enclosure_handle)))
ioc->sas_hba.enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
out:
kfree(sas_iounit_pg1);
kfree(sas_iounit_pg0);
}
/**
* _scsih_expander_add - creating expander object
* @ioc: per adapter object
* @handle: expander handle
*
* Creating expander object, stored in ioc->sas_expander_list.
*
* Return: 0 for success, else error.
*/
static int
_scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander;
struct _enclosure_node *enclosure_dev;
Mpi2ConfigReply_t mpi_reply;
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ExpanderPage1_t expander_pg1;
u32 ioc_status;
u16 parent_handle;
u64 sas_address, sas_address_parent = 0;
int i;
unsigned long flags;
struct _sas_port *mpt3sas_port = NULL;
int rc = 0;
if (!handle)
return -1;
if (ioc->shost_recovery || ioc->pci_error_recovery)
return -1;
if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
/* handle out of order topology events */
parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
!= 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
if (sas_address_parent != ioc->sas_hba.sas_address) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address_parent);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_expander) {
rc = _scsih_expander_add(ioc, parent_handle);
if (rc != 0)
return rc;
}
}
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
return 0;
sas_expander = kzalloc(sizeof(struct _sas_node),
GFP_KERNEL);
if (!sas_expander) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
sas_expander->handle = handle;
sas_expander->num_phys = expander_pg0.NumPhys;
sas_expander->sas_address_parent = sas_address_parent;
sas_expander->sas_address = sas_address;
ioc_info(ioc, "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
handle, parent_handle,
(u64)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) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
INIT_LIST_HEAD(&sas_expander->sas_port_list);
mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
sas_address_parent);
if (!mpt3sas_port) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
if ((mpt3sas_transport_add_expander_phy(ioc,
&sas_expander->phy[i], expander_pg1,
sas_expander->parent_dev))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
}
if (sas_expander->enclosure_handle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
sas_expander->enclosure_handle);
if (enclosure_dev)
sas_expander->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
}
_scsih_expander_node_add(ioc, sas_expander);
return 0;
out_fail:
if (mpt3sas_port)
mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_address_parent);
kfree(sas_expander);
return rc;
}
/**
* mpt3sas_expander_remove - removing expander object
* @ioc: per adapter object
* @sas_address: expander sas_address
*/
void
mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
{
struct _sas_node *sas_expander;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
_scsih_expander_node_remove(ioc, sas_expander);
}
/**
* _scsih_done - internal SCSI_IO callback handler.
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when sending internal generated SCSI_IO.
* The callback index passed is `ioc->scsih_cb_idx`
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
return 1;
if (ioc->scsih_cmds.smid != smid)
return 1;
ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
if (mpi_reply) {
memcpy(ioc->scsih_cmds.reply, mpi_reply,
mpi_reply->MsgLength*4);
ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
}
ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->scsih_cmds.done);
return 1;
}
#define MPT3_MAX_LUNS (255)
/**
* _scsih_check_access_status - check access flags
* @ioc: per adapter object
* @sas_address: sas address
* @handle: sas device handle
* @access_status: errors returned during discovery of the device
*
* Return: 0 for success, else failure
*/
static u8
_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
u16 handle, u8 access_status)
{
u8 rc = 1;
char *desc = NULL;
switch (access_status) {
case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
rc = 0;
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
desc = "sata capability failed";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
desc = "sata affiliation conflict";
break;
case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
desc = "route not addressable";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
desc = "smp error not addressable";
break;
case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
desc = "device blocked";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
desc = "sata initialization failed";
break;
default:
desc = "unknown";
break;
}
if (!rc)
return 0;
ioc_err(ioc, "discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
desc, (u64)sas_address, handle);
return rc;
}
/**
* _scsih_check_device - checking device responsiveness
* @ioc: per adapter object
* @parent_sas_address: sas address of parent expander or sas host
* @handle: attached device handle
* @phy_number: phy number
* @link_rate: new link rate
*/
static void
_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
struct _sas_device *sas_device;
struct _enclosure_node *enclosure_dev = NULL;
u32 ioc_status;
unsigned long flags;
u64 sas_address;
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
u32 device_info;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
return;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
return;
/* wide port handling ~ we need only handle device once for the phy that
* is matched in sas device page zero
*/
if (phy_number != sas_device_pg0.PhyNum)
return;
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_address);
if (!sas_device)
goto out_unlock;
if (unlikely(sas_device->handle != handle)) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget,
"handle changed from(0x%04x) to (0x%04x)!!!\n",
sas_device->handle, handle);
sas_target_priv_data->handle = handle;
sas_device->handle = handle;
if (le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
sas_device_pg0.EnclosureLevel;
memcpy(sas_device->connector_name,
sas_device_pg0.ConnectorName, 4);
sas_device->connector_name[4] = '\0';
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
}
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
sas_device->is_chassis_slot_valid = 0;
enclosure_dev = mpt3sas_scsih_enclosure_find_by_handle(ioc,
sas_device->enclosure_handle);
if (enclosure_dev) {
sas_device->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
if (le16_to_cpu(enclosure_dev->pg0.Flags) &
MPI2_SAS_ENCLS0_FLAGS_CHASSIS_SLOT_VALID) {
sas_device->is_chassis_slot_valid = 1;
sas_device->chassis_slot =
enclosure_dev->pg0.ChassisSlot;
}
}
}
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
ioc_err(ioc, "device is not present handle(0x%04x), flags!!!\n",
handle);
goto out_unlock;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
sas_device_pg0.AccessStatus))
goto out_unlock;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_ublock_io_device(ioc, sas_address);
if (sas_device)
sas_device_put(sas_device);
return;
out_unlock:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
sas_device_put(sas_device);
}
/**
* _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.
*
* Return: 0 for success, non-zero for failure.
*/
static int
_scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
u8 is_pd)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
struct _sas_device *sas_device;
struct _enclosure_node *enclosure_dev = NULL;
u32 ioc_status;
u64 sas_address;
u32 device_info;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
return -1;
set_bit(handle, ioc->pend_os_device_add);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
ioc_err(ioc, "device is not present handle(0x04%x)!!!\n",
handle);
return -1;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
sas_device_pg0.AccessStatus))
return -1;
sas_device = mpt3sas_get_sdev_by_addr(ioc,
sas_address);
if (sas_device) {
clear_bit(handle, ioc->pend_os_device_add);
sas_device_put(sas_device);
return -1;
}
if (sas_device_pg0.EnclosureHandle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
le16_to_cpu(sas_device_pg0.EnclosureHandle));
if (enclosure_dev == NULL)
ioc_info(ioc, "Enclosure handle(0x%04x) doesn't match with enclosure device!\n",
sas_device_pg0.EnclosureHandle);
}
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
if (!sas_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
kref_init(&sas_device->refcount);
sas_device->handle = handle;
if (_scsih_get_sas_address(ioc,
le16_to_cpu(sas_device_pg0.ParentDevHandle),
&sas_device->sas_address_parent) != 0)
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
if (sas_device->enclosure_handle != 0)
sas_device->slot =
le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->phy = sas_device_pg0.PhyNum;
sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
if (le16_to_cpu(sas_device_pg0.Flags)
& MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
sas_device_pg0.EnclosureLevel;
memcpy(sas_device->connector_name,
sas_device_pg0.ConnectorName, 4);
sas_device->connector_name[4] = '\0';
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
}
/* get enclosure_logical_id & chassis_slot*/
sas_device->is_chassis_slot_valid = 0;
if (enclosure_dev) {
sas_device->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
if (le16_to_cpu(enclosure_dev->pg0.Flags) &
MPI2_SAS_ENCLS0_FLAGS_CHASSIS_SLOT_VALID) {
sas_device->is_chassis_slot_valid = 1;
sas_device->chassis_slot =
enclosure_dev->pg0.ChassisSlot;
}
}
/* get device name */
sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
if (ioc->wait_for_discovery_to_complete)
_scsih_sas_device_init_add(ioc, sas_device);
else
_scsih_sas_device_add(ioc, sas_device);
sas_device_put(sas_device);
return 0;
}
/**
* _scsih_remove_device - removing sas device object
* @ioc: per adapter object
* @sas_device: the sas_device object
*/
static void
_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
if ((ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) &&
(sas_device->pfa_led_on)) {
_scsih_turn_off_pfa_led(ioc, sas_device);
sas_device->pfa_led_on = 0;
}
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__,
sas_device->handle, (u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
_scsih_ublock_io_device(ioc, sas_device->sas_address);
sas_target_priv_data->handle =
MPT3SAS_INVALID_DEVICE_HANDLE;
}
if (!ioc->hide_drives)
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
ioc_info(ioc, "removing handle(0x%04x), sas_addr(0x%016llx)\n",
sas_device->handle, (u64)sas_device->sas_address);
_scsih_display_enclosure_chassis_info(ioc, sas_device, NULL, NULL);
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__,
sas_device->handle, (u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
}
/**
* _scsih_sas_topology_change_event_debug - debug for topology event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
char *status_str = NULL;
u8 link_rate, prev_link_rate;
switch (event_data->ExpStatus) {
case MPI2_EVENT_SAS_TOPO_ES_ADDED:
status_str = "add";
break;
case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
status_str = "remove";
break;
case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
case 0:
status_str = "responding";
break;
case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
ioc_info(ioc, "sas topology change: (%s)\n", status_str);
pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \
"start_phy(%02d), count(%d)\n",
le16_to_cpu(event_data->ExpanderDevHandle),
le16_to_cpu(event_data->EnclosureHandle),
event_data->StartPhyNum, event_data->NumEntries);
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
status_str = "target add";
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
status_str = "target remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
status_str = "delay target remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
status_str = "link rate change";
break;
case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
status_str = "target responding";
break;
default:
status_str = "unknown";
break;
}
link_rate = event_data->PHY[i].LinkRate >> 4;
prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
" link rate: new(0x%02x), old(0x%02x)\n", phy_number,
handle, status_str, link_rate, prev_link_rate);
}
}
/**
* _scsih_sas_topology_change_event - handle topology changes
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
*/
static int
_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
int i;
u16 parent_handle, handle;
u16 reason_code;
u8 phy_number, max_phys;
struct _sas_node *sas_expander;
u64 sas_address;
unsigned long flags;
u8 link_rate, prev_link_rate;
Mpi2EventDataSasTopologyChangeList_t *event_data =
(Mpi2EventDataSasTopologyChangeList_t *)
fw_event->event_data;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_topology_change_event_debug(ioc, event_data);
if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
return 0;
if (!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
else
_scsih_sas_host_refresh(ioc);
if (fw_event->ignore) {
dewtprintk(ioc, ioc_info(ioc, "ignoring expander event\n"));
return 0;
}
parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
/* handle expander add */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
if (_scsih_expander_add(ioc, parent_handle) != 0)
return 0;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
parent_handle);
if (sas_expander) {
sas_address = sas_expander->sas_address;
max_phys = sas_expander->num_phys;
} else if (parent_handle < ioc->sas_hba.num_phys) {
sas_address = ioc->sas_hba.sas_address;
max_phys = ioc->sas_hba.num_phys;
} else {
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
return 0;
}
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc,
ioc_info(ioc, "ignoring expander event\n"));
return 0;
}
if (ioc->remove_host || ioc->pci_error_recovery)
return 0;
phy_number = event_data->StartPhyNum + i;
if (phy_number >= max_phys)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if ((event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
continue;
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
link_rate = event_data->PHY[i].LinkRate >> 4;
prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
if (ioc->shost_recovery)
break;
if (link_rate == prev_link_rate)
break;
mpt3sas_transport_update_links(ioc, sas_address,
handle, phy_number, link_rate);
if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
break;
_scsih_check_device(ioc, sas_address, handle,
phy_number, link_rate);
if (!test_bit(handle, ioc->pend_os_device_add))
break;
/* fall through */
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
if (ioc->shost_recovery)
break;
mpt3sas_transport_update_links(ioc, sas_address,
handle, phy_number, link_rate);
_scsih_add_device(ioc, handle, phy_number, 0);
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
_scsih_device_remove_by_handle(ioc, handle);
break;
}
}
/* handle expander removal */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
sas_expander)
mpt3sas_expander_remove(ioc, sas_address);
return 0;
}
/**
* _scsih_sas_device_status_change_event_debug - debug for device event
* @ioc: ?
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
reason_str = "smart data";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
reason_str = "unsupported device discovered";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
reason_str = "internal device reset";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
reason_str = "internal task abort";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
reason_str = "internal task abort set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
reason_str = "internal clear task set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
reason_str = "internal query task";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
reason_str = "sata init failure";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
reason_str = "internal device reset complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
reason_str = "internal task abort complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
reason_str = "internal async notification";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
reason_str = "expander reduced functionality";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
reason_str = "expander reduced functionality complete";
break;
default:
reason_str = "unknown reason";
break;
}
ioc_info(ioc, "device status change: (%s)\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
reason_str, le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->SASAddress),
le16_to_cpu(event_data->TaskTag));
if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
pr_cont(", ASC(0x%x), ASCQ(0x%x)\n",
event_data->ASC, event_data->ASCQ);
pr_cont("\n");
}
/**
* _scsih_sas_device_status_change_event - handle device status change
* @ioc: per adapter object
* @event_data: The fw event
* Context: user.
*/
static void
_scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
struct MPT3SAS_TARGET *target_priv_data;
struct _sas_device *sas_device;
u64 sas_address;
unsigned long flags;
/* In MPI Revision K (0xC), the internal device reset complete was
* implemented, so avoid setting tm_busy flag for older firmware.
*/
if ((ioc->facts.HeaderVersion >> 8) < 0xC)
return;
if (event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(event_data->SASAddress);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_address);
if (!sas_device || !sas_device->starget)
goto out;
target_priv_data = sas_device->starget->hostdata;
if (!target_priv_data)
goto out;
if (event_data->ReasonCode ==
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
ioc_info(ioc,
"%s tm_busy flag for handle(0x%04x)\n",
(target_priv_data->tm_busy == 1) ? "Enable" : "Disable",
target_priv_data->handle);
out:
if (sas_device)
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_check_pcie_access_status - check access flags
* @ioc: per adapter object
* @wwid: wwid
* @handle: sas device handle
* @access_status: errors returned during discovery of the device
*
* Return: 0 for success, else failure
*/
static u8
_scsih_check_pcie_access_status(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
u16 handle, u8 access_status)
{
u8 rc = 1;
char *desc = NULL;
switch (access_status) {
case MPI26_PCIEDEV0_ASTATUS_NO_ERRORS:
case MPI26_PCIEDEV0_ASTATUS_NEEDS_INITIALIZATION:
rc = 0;
break;
case MPI26_PCIEDEV0_ASTATUS_CAPABILITY_FAILED:
desc = "PCIe device capability failed";
break;
case MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED:
desc = "PCIe device blocked";
ioc_info(ioc,
"Device with Access Status (%s): wwid(0x%016llx), "
"handle(0x%04x)\n ll only be added to the internal list",
desc, (u64)wwid, handle);
rc = 0;
break;
case MPI26_PCIEDEV0_ASTATUS_MEMORY_SPACE_ACCESS_FAILED:
desc = "PCIe device mem space access failed";
break;
case MPI26_PCIEDEV0_ASTATUS_UNSUPPORTED_DEVICE:
desc = "PCIe device unsupported";
break;
case MPI26_PCIEDEV0_ASTATUS_MSIX_REQUIRED:
desc = "PCIe device MSIx Required";
break;
case MPI26_PCIEDEV0_ASTATUS_INIT_FAIL_MAX:
desc = "PCIe device init fail max";
break;
case MPI26_PCIEDEV0_ASTATUS_UNKNOWN:
desc = "PCIe device status unknown";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_READY_TIMEOUT:
desc = "nvme ready timeout";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_DEVCFG_UNSUPPORTED:
desc = "nvme device configuration unsupported";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_IDENTIFY_FAILED:
desc = "nvme identify failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_QCONFIG_FAILED:
desc = "nvme qconfig failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_QCREATION_FAILED:
desc = "nvme qcreation failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_EVENTCFG_FAILED:
desc = "nvme eventcfg failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_GET_FEATURE_STAT_FAILED:
desc = "nvme get feature stat failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_IDLE_TIMEOUT:
desc = "nvme idle timeout";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_FAILURE_STATUS:
desc = "nvme failure status";
break;
default:
ioc_err(ioc, "NVMe discovery error(0x%02x): wwid(0x%016llx), handle(0x%04x)\n",
access_status, (u64)wwid, handle);
return rc;
}
if (!rc)
return rc;
ioc_info(ioc, "NVMe discovery error(%s): wwid(0x%016llx), handle(0x%04x)\n",
desc, (u64)wwid, handle);
return rc;
}
/**
* _scsih_pcie_device_remove_from_sml - removing pcie device
* from SML and free up associated memory
* @ioc: per adapter object
* @pcie_device: the pcie_device object
*/
static void
_scsih_pcie_device_remove_from_sml(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: handle(0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: enclosure level(0x%04x), connector name(%s)\n",
__func__,
pcie_device->enclosure_level,
pcie_device->connector_name));
if (pcie_device->starget && pcie_device->starget->hostdata) {
sas_target_priv_data = pcie_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
_scsih_ublock_io_device(ioc, pcie_device->wwid);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
pcie_device->handle, (u64)pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
ioc_info(ioc, "removing : enclosure logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
ioc_info(ioc, "removing: enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
if (pcie_device->starget && (pcie_device->access_status !=
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED))
scsi_remove_target(&pcie_device->starget->dev);
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: handle(0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: enclosure level(0x%04x), connector name( %s)\n",
__func__,
pcie_device->enclosure_level,
pcie_device->connector_name));
kfree(pcie_device->serial_number);
}
/**
* _scsih_pcie_check_device - checking device responsiveness
* @ioc: per adapter object
* @handle: attached device handle
*/
static void
_scsih_pcie_check_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2ConfigReply_t mpi_reply;
Mpi26PCIeDevicePage0_t pcie_device_pg0;
u32 ioc_status;
struct _pcie_device *pcie_device;
u64 wwid;
unsigned long flags;
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
u32 device_info;
if ((mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle)))
return;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
return;
/* check if this is end device */
device_info = le32_to_cpu(pcie_device_pg0.DeviceInfo);
if (!(_scsih_is_nvme_pciescsi_device(device_info)))
return;
wwid = le64_to_cpu(pcie_device_pg0.WWID);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc, wwid);
if (!pcie_device) {
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return;
}
if (unlikely(pcie_device->handle != handle)) {
starget = pcie_device->starget;
sas_target_priv_data = starget->hostdata;
pcie_device->access_status = pcie_device_pg0.AccessStatus;
starget_printk(KERN_INFO, starget,
"handle changed from(0x%04x) to (0x%04x)!!!\n",
pcie_device->handle, handle);
sas_target_priv_data->handle = handle;
pcie_device->handle = handle;
if (le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_ENCL_LEVEL_VALID) {
pcie_device->enclosure_level =
pcie_device_pg0.EnclosureLevel;
memcpy(&pcie_device->connector_name[0],
&pcie_device_pg0.ConnectorName[0], 4);
} else {
pcie_device->enclosure_level = 0;
pcie_device->connector_name[0] = '\0';
}
}
/* check if device is present */
if (!(le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_DEVICE_PRESENT)) {
ioc_info(ioc, "device is not present handle(0x%04x), flags!!!\n",
handle);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
pcie_device_put(pcie_device);
return;
}
/* check if there were any issues with discovery */
if (_scsih_check_pcie_access_status(ioc, wwid, handle,
pcie_device_pg0.AccessStatus)) {
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
pcie_device_put(pcie_device);
return;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
pcie_device_put(pcie_device);
_scsih_ublock_io_device(ioc, wwid);
return;
}
/**
* _scsih_pcie_add_device - creating pcie device object
* @ioc: per adapter object
* @handle: pcie device handle
*
* Creating end device object, stored in ioc->pcie_device_list.
*
* Return: 1 means queue the event later, 0 means complete the event
*/
static int
_scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi26PCIeDevicePage2_t pcie_device_pg2;
Mpi2ConfigReply_t mpi_reply;
struct _pcie_device *pcie_device;
struct _enclosure_node *enclosure_dev;
u32 ioc_status;
u64 wwid;
if ((mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
set_bit(handle, ioc->pend_os_device_add);
wwid = le64_to_cpu(pcie_device_pg0.WWID);
/* check if device is present */
if (!(le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_DEVICE_PRESENT)) {
ioc_err(ioc, "device is not present handle(0x04%x)!!!\n",
handle);
return 0;
}
/* check if there were any issues with discovery */
if (_scsih_check_pcie_access_status(ioc, wwid, handle,
pcie_device_pg0.AccessStatus))
return 0;
if (!(_scsih_is_nvme_pciescsi_device(le32_to_cpu
(pcie_device_pg0.DeviceInfo))))
return 0;
pcie_device = mpt3sas_get_pdev_by_wwid(ioc, wwid);
if (pcie_device) {
clear_bit(handle, ioc->pend_os_device_add);
pcie_device_put(pcie_device);
return 0;
}
/* PCIe Device Page 2 contains read-only information about a
* specific NVMe device; therefore, this page is only
* valid for NVMe devices and skip for pcie devices of type scsi.
*/
if (!(mpt3sas_scsih_is_pcie_scsi_device(
le32_to_cpu(pcie_device_pg0.DeviceInfo)))) {
if (mpt3sas_config_get_pcie_device_pg2(ioc, &mpi_reply,
&pcie_device_pg2, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle)) {
ioc_err(ioc,
"failure at %s:%d/%s()!\n", __FILE__,
__LINE__, __func__);
return 0;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc,
"failure at %s:%d/%s()!\n", __FILE__,
__LINE__, __func__);
return 0;
}
}
pcie_device = kzalloc(sizeof(struct _pcie_device), GFP_KERNEL);
if (!pcie_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
kref_init(&pcie_device->refcount);
pcie_device->id = ioc->pcie_target_id++;
pcie_device->channel = PCIE_CHANNEL;
pcie_device->handle = handle;
pcie_device->access_status = pcie_device_pg0.AccessStatus;
pcie_device->device_info = le32_to_cpu(pcie_device_pg0.DeviceInfo);
pcie_device->wwid = wwid;
pcie_device->port_num = pcie_device_pg0.PortNum;
pcie_device->fast_path = (le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
pcie_device->enclosure_handle =
le16_to_cpu(pcie_device_pg0.EnclosureHandle);
if (pcie_device->enclosure_handle != 0)
pcie_device->slot = le16_to_cpu(pcie_device_pg0.Slot);
if (le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_ENCL_LEVEL_VALID) {
pcie_device->enclosure_level = pcie_device_pg0.EnclosureLevel;
memcpy(&pcie_device->connector_name[0],
&pcie_device_pg0.ConnectorName[0], 4);
} else {
pcie_device->enclosure_level = 0;
pcie_device->connector_name[0] = '\0';
}
/* get enclosure_logical_id */
if (pcie_device->enclosure_handle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
pcie_device->enclosure_handle);
if (enclosure_dev)
pcie_device->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
}
/* TODO -- Add device name once FW supports it */
if (!(mpt3sas_scsih_is_pcie_scsi_device(
le32_to_cpu(pcie_device_pg0.DeviceInfo)))) {
pcie_device->nvme_mdts =
le32_to_cpu(pcie_device_pg2.MaximumDataTransferSize);
pcie_device->shutdown_latency =
le16_to_cpu(pcie_device_pg2.ShutdownLatency);
/*
* Set IOC's max_shutdown_latency to drive's RTD3 Entry Latency
* if drive's RTD3 Entry Latency is greater then IOC's
* max_shutdown_latency.
*/
if (pcie_device->shutdown_latency > ioc->max_shutdown_latency)
ioc->max_shutdown_latency =
pcie_device->shutdown_latency;
if (pcie_device_pg2.ControllerResetTO)
pcie_device->reset_timeout =
pcie_device_pg2.ControllerResetTO;
else
pcie_device->reset_timeout = 30;
} else
pcie_device->reset_timeout = 30;
if (ioc->wait_for_discovery_to_complete)
_scsih_pcie_device_init_add(ioc, pcie_device);
else
_scsih_pcie_device_add(ioc, pcie_device);
pcie_device_put(pcie_device);
return 0;
}
/**
* _scsih_pcie_topology_change_event_debug - debug for topology
* event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_pcie_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 port_number;
char *status_str = NULL;
u8 link_rate, prev_link_rate;
switch (event_data->SwitchStatus) {
case MPI26_EVENT_PCIE_TOPO_SS_ADDED:
status_str = "add";
break;
case MPI26_EVENT_PCIE_TOPO_SS_NOT_RESPONDING:
status_str = "remove";
break;
case MPI26_EVENT_PCIE_TOPO_SS_RESPONDING:
case 0:
status_str = "responding";
break;
case MPI26_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
ioc_info(ioc, "pcie topology change: (%s)\n", status_str);
pr_info("\tswitch_handle(0x%04x), enclosure_handle(0x%04x)"
"start_port(%02d), count(%d)\n",
le16_to_cpu(event_data->SwitchDevHandle),
le16_to_cpu(event_data->EnclosureHandle),
event_data->StartPortNum, event_data->NumEntries);
for (i = 0; i < event_data->NumEntries; i++) {
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
port_number = event_data->StartPortNum + i;
reason_code = event_data->PortEntry[i].PortStatus;
switch (reason_code) {
case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
status_str = "target add";
break;
case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
status_str = "target remove";
break;
case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
status_str = "delay target remove";
break;
case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
status_str = "link rate change";
break;
case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
status_str = "target responding";
break;
default:
status_str = "unknown";
break;
}
link_rate = event_data->PortEntry[i].CurrentPortInfo &
MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
prev_link_rate = event_data->PortEntry[i].PreviousPortInfo &
MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
pr_info("\tport(%02d), attached_handle(0x%04x): %s:"
" link rate: new(0x%02x), old(0x%02x)\n", port_number,
handle, status_str, link_rate, prev_link_rate);
}
}
/**
* _scsih_pcie_topology_change_event - handle PCIe topology
* changes
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
*/
static void
_scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
int i;
u16 handle;
u16 reason_code;
u8 link_rate, prev_link_rate;
unsigned long flags;
int rc;
Mpi26EventDataPCIeTopologyChangeList_t *event_data =
(Mpi26EventDataPCIeTopologyChangeList_t *) fw_event->event_data;
struct _pcie_device *pcie_device;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_pcie_topology_change_event_debug(ioc, event_data);
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery)
return;
if (fw_event->ignore) {
dewtprintk(ioc, ioc_info(ioc, "ignoring switch event\n"));
return;
}
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc,
ioc_info(ioc, "ignoring switch event\n"));
return;
}
if (ioc->remove_host || ioc->pci_error_recovery)
return;
reason_code = event_data->PortEntry[i].PortStatus;
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
link_rate = event_data->PortEntry[i].CurrentPortInfo
& MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
prev_link_rate = event_data->PortEntry[i].PreviousPortInfo
& MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
switch (reason_code) {
case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
if (ioc->shost_recovery)
break;
if (link_rate == prev_link_rate)
break;
if (link_rate < MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5)
break;
_scsih_pcie_check_device(ioc, handle);
/* This code after this point handles the test case
* where a device has been added, however its returning
* BUSY for sometime. Then before the Device Missing
* Delay expires and the device becomes READY, the
* device is removed and added back.
*/
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (pcie_device) {
pcie_device_put(pcie_device);
break;
}
if (!test_bit(handle, ioc->pend_os_device_add))
break;
dewtprintk(ioc,
ioc_info(ioc, "handle(0x%04x) device not found: convert event to a device add\n",
handle));
event_data->PortEntry[i].PortStatus &= 0xF0;
event_data->PortEntry[i].PortStatus |=
MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED;
/* fall through */
case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
if (ioc->shost_recovery)
break;
if (link_rate < MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5)
break;
rc = _scsih_pcie_add_device(ioc, handle);
if (!rc) {
/* mark entry vacant */
/* TODO This needs to be reviewed and fixed,
* we dont have an entry
* to make an event void like vacant
*/
event_data->PortEntry[i].PortStatus |=
MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE;
}
break;
case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
_scsih_pcie_device_remove_by_handle(ioc, handle);
break;
}
}
}
/**
* _scsih_pcie_device_status_change_event_debug - debug for device event
* @ioc: ?
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_pcie_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeDeviceStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI26_EVENT_PCIDEV_STAT_RC_SMART_DATA:
reason_str = "smart data";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_UNSUPPORTED:
reason_str = "unsupported device discovered";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_INTERNAL_DEVICE_RESET:
reason_str = "internal device reset";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_TASK_ABORT_INTERNAL:
reason_str = "internal task abort";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
reason_str = "internal task abort set";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
reason_str = "internal clear task set";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_QUERY_TASK_INTERNAL:
reason_str = "internal query task";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_DEV_INIT_FAILURE:
reason_str = "device init failure";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
reason_str = "internal device reset complete";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
reason_str = "internal task abort complete";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_ASYNC_NOTIFICATION:
reason_str = "internal async notification";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_PCIE_HOT_RESET_FAILED:
reason_str = "pcie hot reset failed";
break;
default:
reason_str = "unknown reason";
break;
}
ioc_info(ioc, "PCIE device status change: (%s)\n"
"\thandle(0x%04x), WWID(0x%016llx), tag(%d)",
reason_str, le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->WWID),
le16_to_cpu(event_data->TaskTag));
if (event_data->ReasonCode == MPI26_EVENT_PCIDEV_STAT_RC_SMART_DATA)
pr_cont(", ASC(0x%x), ASCQ(0x%x)\n",
event_data->ASC, event_data->ASCQ);
pr_cont("\n");
}
/**
* _scsih_pcie_device_status_change_event - handle device status
* change
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_pcie_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct MPT3SAS_TARGET *target_priv_data;
struct _pcie_device *pcie_device;
u64 wwid;
unsigned long flags;
Mpi26EventDataPCIeDeviceStatusChange_t *event_data =
(Mpi26EventDataPCIeDeviceStatusChange_t *)fw_event->event_data;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_pcie_device_status_change_event_debug(ioc,
event_data);
if (event_data->ReasonCode !=
MPI26_EVENT_PCIDEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
MPI26_EVENT_PCIDEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
return;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
wwid = le64_to_cpu(event_data->WWID);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc, wwid);
if (!pcie_device || !pcie_device->starget)
goto out;
target_priv_data = pcie_device->starget->hostdata;
if (!target_priv_data)
goto out;
if (event_data->ReasonCode ==
MPI26_EVENT_PCIDEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
out:
if (pcie_device)
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure
* event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_ENCL_RC_ADDED:
reason_str = "enclosure add";
break;
case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
reason_str = "enclosure remove";
break;
default:
reason_str = "unknown reason";
break;
}
ioc_info(ioc, "enclosure status change: (%s)\n"
"\thandle(0x%04x), enclosure logical id(0x%016llx) number slots(%d)\n",
reason_str,
le16_to_cpu(event_data->EnclosureHandle),
(u64)le64_to_cpu(event_data->EnclosureLogicalID),
le16_to_cpu(event_data->StartSlot));
}
/**
* _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2ConfigReply_t mpi_reply;
struct _enclosure_node *enclosure_dev = NULL;
Mpi2EventDataSasEnclDevStatusChange_t *event_data =
(Mpi2EventDataSasEnclDevStatusChange_t *)fw_event->event_data;
int rc;
u16 enclosure_handle = le16_to_cpu(event_data->EnclosureHandle);
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
(Mpi2EventDataSasEnclDevStatusChange_t *)
fw_event->event_data);
if (ioc->shost_recovery)
return;
if (enclosure_handle)
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
enclosure_handle);
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_ENCL_RC_ADDED:
if (!enclosure_dev) {
enclosure_dev =
kzalloc(sizeof(struct _enclosure_node),
GFP_KERNEL);
if (!enclosure_dev) {
ioc_info(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
rc = mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_dev->pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
enclosure_handle);
if (rc || (le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK)) {
kfree(enclosure_dev);
return;
}
list_add_tail(&enclosure_dev->list,
&ioc->enclosure_list);
}
break;
case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
if (enclosure_dev) {
list_del(&enclosure_dev->list);
kfree(enclosure_dev);
}
break;
default:
break;
}
}
/**
* _scsih_sas_broadcast_primitive_event - handle broadcast events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct scsi_cmnd *scmd;
struct scsi_device *sdev;
struct scsiio_tracker *st;
u16 smid, handle;
u32 lun;
struct MPT3SAS_DEVICE *sas_device_priv_data;
u32 termination_count;
u32 query_count;
Mpi2SCSITaskManagementReply_t *mpi_reply;
Mpi2EventDataSasBroadcastPrimitive_t *event_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
fw_event->event_data;
u16 ioc_status;
unsigned long flags;
int r;
u8 max_retries = 0;
u8 task_abort_retries;
mutex_lock(&ioc->tm_cmds.mutex);
ioc_info(ioc, "%s: enter: phy number(%d), width(%d)\n",
__func__, event_data->PhyNum, event_data->PortWidth);
_scsih_block_io_all_device(ioc);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
mpi_reply = ioc->tm_cmds.reply;
broadcast_aen_retry:
/* sanity checks for retrying this loop */
if (max_retries++ == 5) {
dewtprintk(ioc, ioc_info(ioc, "%s: giving up\n", __func__));
goto out;
} else if (max_retries > 1)
dewtprintk(ioc,
ioc_info(ioc, "%s: %d retry\n",
__func__, max_retries - 1));
termination_count = 0;
query_count = 0;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
if (ioc->shost_recovery)
goto out;
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
st = scsi_cmd_priv(scmd);
sdev = scmd->device;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
continue;
/* skip hidden raid components */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
continue;
/* skip volumes */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_VOLUME)
continue;
/* skip PCIe devices */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_PCIE_DEVICE)
continue;
handle = sas_device_priv_data->sas_target->handle;
lun = sas_device_priv_data->lun;
query_count++;
if (ioc->shost_recovery)
goto out;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
r = mpt3sas_scsih_issue_tm(ioc, handle, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, st->smid,
st->msix_io, 30, 0);
if (r == FAILED) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: FAILED when sending "
"QUERY_TASK: scmd(%p)\n", scmd);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
& MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
sdev_printk(KERN_WARNING, sdev,
"query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n",
ioc_status, scmd);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
/* see if IO is still owned by IOC and target */
if (mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
continue;
}
task_abort_retries = 0;
tm_retry:
if (task_abort_retries++ == 60) {
dewtprintk(ioc,
ioc_info(ioc, "%s: ABORT_TASK: giving up\n",
__func__));
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
if (ioc->shost_recovery)
goto out_no_lock;
r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, st->smid,
st->msix_io, 30, 0);
if (r == FAILED || st->cb_idx != 0xFF) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
"scmd(%p)\n", scmd);
goto tm_retry;
}
if (task_abort_retries > 1)
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
" scmd(%p)\n",
task_abort_retries - 1, scmd);
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
}
if (ioc->broadcast_aen_pending) {
dewtprintk(ioc,
ioc_info(ioc,
"%s: loop back due to pending AEN\n",
__func__));
ioc->broadcast_aen_pending = 0;
goto broadcast_aen_retry;
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
out_no_lock:
dewtprintk(ioc,
ioc_info(ioc, "%s - exit, query_count = %d termination_count = %d\n",
__func__, query_count, termination_count));
ioc->broadcast_aen_busy = 0;
if (!ioc->shost_recovery)
_scsih_ublock_io_all_device(ioc);
mutex_unlock(&ioc->tm_cmds.mutex);
}
/**
* _scsih_sas_discovery_event - handle discovery events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventDataSasDiscovery_t *event_data =
(Mpi2EventDataSasDiscovery_t *) fw_event->event_data;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
ioc_info(ioc, "discovery event: (%s)",
event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED ?
"start" : "stop");
if (event_data->DiscoveryStatus)
pr_cont("discovery_status(0x%08x)",
le32_to_cpu(event_data->DiscoveryStatus));
pr_cont("\n");
}
if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
!ioc->sas_hba.num_phys) {
if (disable_discovery > 0 && ioc->shost_recovery) {
/* Wait for the reset to complete */
while (ioc->shost_recovery)
ssleep(1);
}
_scsih_sas_host_add(ioc);
}
}
/**
* _scsih_sas_device_discovery_error_event - display SAS device discovery error
* events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_device_discovery_error_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi25EventDataSasDeviceDiscoveryError_t *event_data =
(Mpi25EventDataSasDeviceDiscoveryError_t *)fw_event->event_data;
switch (event_data->ReasonCode) {
case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
ioc_warn(ioc, "SMP command sent to the expander (handle:0x%04x, sas_address:0x%016llx, physical_port:0x%02x) has failed\n",
le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->SASAddress),
event_data->PhysicalPort);
break;
case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
ioc_warn(ioc, "SMP command sent to the expander (handle:0x%04x, sas_address:0x%016llx, physical_port:0x%02x) has timed out\n",
le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->SASAddress),
event_data->PhysicalPort);
break;
default:
break;
}
}
/**
* _scsih_pcie_enumeration_event - handle enumeration events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_pcie_enumeration_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi26EventDataPCIeEnumeration_t *event_data =
(Mpi26EventDataPCIeEnumeration_t *)fw_event->event_data;
if (!(ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK))
return;
ioc_info(ioc, "pcie enumeration event: (%s) Flag 0x%02x",
(event_data->ReasonCode == MPI26_EVENT_PCIE_ENUM_RC_STARTED) ?
"started" : "completed",
event_data->Flags);
if (event_data->EnumerationStatus)
pr_cont("enumeration_status(0x%08x)",
le32_to_cpu(event_data->EnumerationStatus));
pr_cont("\n");
}
/**
* _scsih_ir_fastpath - turn on fastpath for IR physdisk
* @ioc: per adapter object
* @handle: device handle for physical disk
* @phys_disk_num: physical disk number
*
* Return: 0 for success, else failure.
*/
static int
_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
{
Mpi2RaidActionRequest_t *mpi_request;
Mpi2RaidActionReply_t *mpi_reply;
u16 smid;
u8 issue_reset = 0;
int rc = 0;
u16 ioc_status;
u32 log_info;
if (ioc->hba_mpi_version_belonged == MPI2_VERSION)
return rc;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
rc = -EAGAIN;
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
rc = -EAGAIN;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
mpi_request->PhysDiskNum = phys_disk_num;
dewtprintk(ioc,
ioc_info(ioc, "IR RAID_ACTION: turning fast path on for handle(0x%04x), phys_disk_num (0x%02x)\n",
handle, phys_disk_num));
init_completion(&ioc->scsih_cmds.done);
ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
mpt3sas_check_cmd_timeout(ioc,
ioc->scsih_cmds.status, mpi_request,
sizeof(Mpi2RaidActionRequest_t)/4, issue_reset);
rc = -EFAULT;
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
else
log_info = 0;
ioc_status &= MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
dewtprintk(ioc,
ioc_info(ioc, "IR RAID_ACTION: failed: ioc_status(0x%04x), loginfo(0x%08x)!!!\n",
ioc_status, log_info));
rc = -EFAULT;
} else
dewtprintk(ioc,
ioc_info(ioc, "IR RAID_ACTION: completed successfully\n"));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
if (issue_reset)
mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return rc;
}
/**
* _scsih_reprobe_lun - reprobing lun
* @sdev: scsi device struct
* @no_uld_attach: sdev->no_uld_attach flag setting
*
**/
static void
_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
{
sdev->no_uld_attach = no_uld_attach ? 1 : 0;
sdev_printk(KERN_INFO, sdev, "%s raid component\n",
sdev->no_uld_attach ? "hiding" : "exposing");
WARN_ON(scsi_device_reprobe(sdev));
}
/**
* _scsih_sas_volume_add - add new volume
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
unsigned long flags;
u64 wwid;
u16 handle = le16_to_cpu(element->VolDevHandle);
int rc;
mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__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) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
if (!ioc->wait_for_discovery_to_complete) {
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
_scsih_determine_boot_device(ioc, raid_device, 1);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
}
/**
* _scsih_sas_volume_delete - delete volume
* @ioc: per adapter object
* @handle: volume device handle
* Context: user.
*/
static void
_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device;
unsigned long flags;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget = NULL;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
if (raid_device) {
if (raid_device->starget) {
starget = raid_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->deleted = 1;
}
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
raid_device->handle, (u64)raid_device->wwid);
list_del(&raid_device->list);
kfree(raid_device);
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (starget)
scsi_remove_target(&starget->dev);
}
/**
* _scsih_sas_pd_expose - expose pd component to /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
struct scsi_target *starget = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
clear_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->flags &=
~MPT_TARGET_FLAGS_RAID_COMPONENT;
}
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* exposing raid component */
if (starget)
starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
sas_device_put(sas_device);
}
/**
* _scsih_sas_pd_hide - hide pd component from /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
struct scsi_target *starget = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
u16 volume_handle = 0;
u64 volume_wwid = 0;
mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
if (volume_handle)
mpt3sas_config_get_volume_wwid(ioc, volume_handle,
&volume_wwid);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
set_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
sas_device->volume_handle = volume_handle;
sas_device->volume_wwid = volume_wwid;
}
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* hiding raid component */
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
if (starget)
starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
sas_device_put(sas_device);
}
/**
* _scsih_sas_pd_delete - delete pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
_scsih_device_remove_by_handle(ioc, handle);
}
/**
* _scsih_sas_pd_add - remove pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u64 sas_address;
u16 parent_handle;
set_bit(handle, ioc->pd_handles);
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
sas_device_put(sas_device);
return;
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
_scsih_add_device(ioc, handle, 0, 1);
}
/**
* _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
u8 element_type;
int i;
char *reason_str = NULL, *element_str = NULL;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
ioc_info(ioc, "raid config change: (%s), elements(%d)\n",
le32_to_cpu(event_data->Flags) & MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG ?
"foreign" : "native",
event_data->NumElements);
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
reason_str = "add";
break;
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
reason_str = "remove";
break;
case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
reason_str = "no change";
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
reason_str = "hide";
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
reason_str = "unhide";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
reason_str = "volume_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
reason_str = "volume_deleted";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
reason_str = "pd_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
reason_str = "pd_deleted";
break;
default:
reason_str = "unknown reason";
break;
}
element_type = le16_to_cpu(element->ElementFlags) &
MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
switch (element_type) {
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
element_str = "volume";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
element_str = "phys disk";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
element_str = "hot spare";
break;
default:
element_str = "unknown element";
break;
}
pr_info("\t(%s:%s), vol handle(0x%04x), " \
"pd handle(0x%04x), pd num(0x%02x)\n", element_str,
reason_str, le16_to_cpu(element->VolDevHandle),
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
}
/**
* _scsih_sas_ir_config_change_event - handle ir configuration change events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventIrConfigElement_t *element;
int i;
u8 foreign_config;
Mpi2EventDataIrConfigChangeList_t *event_data =
(Mpi2EventDataIrConfigChangeList_t *)
fw_event->event_data;
if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) &&
(!ioc->hide_ir_msg))
_scsih_sas_ir_config_change_event_debug(ioc, event_data);
foreign_config = (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
if (ioc->shost_recovery &&
ioc->hba_mpi_version_belonged != MPI2_VERSION) {
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
_scsih_ir_fastpath(ioc,
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
return;
}
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
if (!foreign_config)
_scsih_sas_volume_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
if (!foreign_config)
_scsih_sas_volume_delete(ioc,
le16_to_cpu(element->VolDevHandle));
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
if (!ioc->is_warpdrive)
_scsih_sas_pd_hide(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
if (!ioc->is_warpdrive)
_scsih_sas_pd_expose(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
if (!ioc->is_warpdrive)
_scsih_sas_pd_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
if (!ioc->is_warpdrive)
_scsih_sas_pd_delete(ioc, element);
break;
}
}
}
/**
* _scsih_sas_ir_volume_event - IR volume event
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
u64 wwid;
unsigned long flags;
struct _raid_device *raid_device;
u16 handle;
u32 state;
int rc;
Mpi2EventDataIrVolume_t *event_data =
(Mpi2EventDataIrVolume_t *) fw_event->event_data;
if (ioc->shost_recovery)
return;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->VolDevHandle);
state = le32_to_cpu(event_data->NewValue);
if (!ioc->hide_ir_msg)
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
__func__, handle,
le32_to_cpu(event_data->PreviousValue),
state));
switch (state) {
case MPI2_RAID_VOL_STATE_MISSING:
case MPI2_RAID_VOL_STATE_FAILED:
_scsih_sas_volume_delete(ioc, handle);
break;
case MPI2_RAID_VOL_STATE_ONLINE:
case MPI2_RAID_VOL_STATE_DEGRADED:
case MPI2_RAID_VOL_STATE_OPTIMAL:
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
break;
mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
break;
}
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
break;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
break;
case MPI2_RAID_VOL_STATE_INITIALIZING:
default:
break;
}
}
/**
* _scsih_sas_ir_physical_disk_event - PD event
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
u16 handle, parent_handle;
u32 state;
struct _sas_device *sas_device;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
Mpi2EventDataIrPhysicalDisk_t *event_data =
(Mpi2EventDataIrPhysicalDisk_t *) fw_event->event_data;
u64 sas_address;
if (ioc->shost_recovery)
return;
if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->PhysDiskDevHandle);
state = le32_to_cpu(event_data->NewValue);
if (!ioc->hide_ir_msg)
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
__func__, handle,
le32_to_cpu(event_data->PreviousValue),
state));
switch (state) {
case MPI2_RAID_PD_STATE_ONLINE:
case MPI2_RAID_PD_STATE_DEGRADED:
case MPI2_RAID_PD_STATE_REBUILDING:
case MPI2_RAID_PD_STATE_OPTIMAL:
case MPI2_RAID_PD_STATE_HOT_SPARE:
if (!ioc->is_warpdrive)
set_bit(handle, ioc->pd_handles);
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device_put(sas_device);
return;
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
_scsih_add_device(ioc, handle, 0, 1);
break;
case MPI2_RAID_PD_STATE_OFFLINE:
case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
default:
break;
}
}
/**
* _scsih_sas_ir_operation_status_event_debug - debug for IR op event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrOperationStatus_t *event_data)
{
char *reason_str = NULL;
switch (event_data->RAIDOperation) {
case MPI2_EVENT_IR_RAIDOP_RESYNC:
reason_str = "resync";
break;
case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
reason_str = "online capacity expansion";
break;
case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
reason_str = "consistency check";
break;
case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
reason_str = "background init";
break;
case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
reason_str = "make data consistent";
break;
}
if (!reason_str)
return;
ioc_info(ioc, "raid operational status: (%s)\thandle(0x%04x), percent complete(%d)\n",
reason_str,
le16_to_cpu(event_data->VolDevHandle),
event_data->PercentComplete);
}
/**
* _scsih_sas_ir_operation_status_event - handle RAID operation events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventDataIrOperationStatus_t *event_data =
(Mpi2EventDataIrOperationStatus_t *)
fw_event->event_data;
static struct _raid_device *raid_device;
unsigned long flags;
u16 handle;
if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) &&
(!ioc->hide_ir_msg))
_scsih_sas_ir_operation_status_event_debug(ioc,
event_data);
/* code added for raid transport support */
if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
handle = le16_to_cpu(event_data->VolDevHandle);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
if (raid_device)
raid_device->percent_complete =
event_data->PercentComplete;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
}
/**
* _scsih_prep_device_scan - initialize parameters prior to device scan
* @ioc: per adapter object
*
* Set the deleted flag prior to device scan. If the device is found during
* the scan, then we clear the deleted flag.
*/
static void
_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (sas_device_priv_data && sas_device_priv_data->sas_target)
sas_device_priv_data->sas_target->deleted = 1;
}
}
/**
* _scsih_mark_responding_sas_device - mark a sas_devices as responding
* @ioc: per adapter object
* @sas_device_pg0: SAS Device page 0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_sas_devices.
*/
static void
_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc,
Mpi2SasDevicePage0_t *sas_device_pg0)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
struct _sas_device *sas_device = NULL;
struct _enclosure_node *enclosure_dev = NULL;
unsigned long flags;
if (sas_device_pg0->EnclosureHandle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
le16_to_cpu(sas_device_pg0->EnclosureHandle));
if (enclosure_dev == NULL)
ioc_info(ioc, "Enclosure handle(0x%04x) doesn't match with enclosure device!\n",
sas_device_pg0->EnclosureHandle);
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if ((sas_device->sas_address == le64_to_cpu(
sas_device_pg0->SASAddress)) && (sas_device->slot ==
le16_to_cpu(sas_device_pg0->Slot))) {
sas_device->responding = 1;
starget = sas_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->tm_busy = 0;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
if (starget) {
starget_printk(KERN_INFO, starget,
"handle(0x%04x), sas_addr(0x%016llx)\n",
le16_to_cpu(sas_device_pg0->DevHandle),
(unsigned long long)
sas_device->sas_address);
if (sas_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx),"
" slot(%d)\n",
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
}
if (le16_to_cpu(sas_device_pg0->Flags) &
MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
sas_device_pg0->EnclosureLevel;
memcpy(&sas_device->connector_name[0],
&sas_device_pg0->ConnectorName[0], 4);
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
}
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0->EnclosureHandle);
sas_device->is_chassis_slot_valid = 0;
if (enclosure_dev) {
sas_device->enclosure_logical_id = le64_to_cpu(
enclosure_dev->pg0.EnclosureLogicalID);
if (le16_to_cpu(enclosure_dev->pg0.Flags) &
MPI2_SAS_ENCLS0_FLAGS_CHASSIS_SLOT_VALID) {
sas_device->is_chassis_slot_valid = 1;
sas_device->chassis_slot =
enclosure_dev->pg0.ChassisSlot;
}
}
if (sas_device->handle == le16_to_cpu(
sas_device_pg0->DevHandle))
goto out;
pr_info("\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
sas_device->handle = le16_to_cpu(
sas_device_pg0->DevHandle);
if (sas_target_priv_data)
sas_target_priv_data->handle =
le16_to_cpu(sas_device_pg0->DevHandle);
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_create_enclosure_list_after_reset - Free Existing list,
* And create enclosure list by scanning all Enclosure Page(0)s
* @ioc: per adapter object
*/
static void
_scsih_create_enclosure_list_after_reset(struct MPT3SAS_ADAPTER *ioc)
{
struct _enclosure_node *enclosure_dev;
Mpi2ConfigReply_t mpi_reply;
u16 enclosure_handle;
int rc;
/* Free existing enclosure list */
mpt3sas_free_enclosure_list(ioc);
/* Re constructing enclosure list after reset*/
enclosure_handle = 0xFFFF;
do {
enclosure_dev =
kzalloc(sizeof(struct _enclosure_node), GFP_KERNEL);
if (!enclosure_dev) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
rc = mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_dev->pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_GET_NEXT_HANDLE,
enclosure_handle);
if (rc || (le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK)) {
kfree(enclosure_dev);
return;
}
list_add_tail(&enclosure_dev->list,
&ioc->enclosure_list);
enclosure_handle =
le16_to_cpu(enclosure_dev->pg0.EnclosureHandle);
} while (1);
}
/**
* _scsih_search_responding_sas_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u32 device_info;
ioc_info(ioc, "search for end-devices: start\n");
if (list_empty(&ioc->sas_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
handle = le16_to_cpu(sas_device_pg0.DevHandle);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
continue;
_scsih_mark_responding_sas_device(ioc, &sas_device_pg0);
}
out:
ioc_info(ioc, "search for end-devices: complete\n");
}
/**
* _scsih_mark_responding_pcie_device - mark a pcie_device as responding
* @ioc: per adapter object
* @pcie_device_pg0: PCIe Device page 0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponding_devices.
*/
static void
_scsih_mark_responding_pcie_device(struct MPT3SAS_ADAPTER *ioc,
Mpi26PCIeDevicePage0_t *pcie_device_pg0)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
struct _pcie_device *pcie_device;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
if ((pcie_device->wwid == le64_to_cpu(pcie_device_pg0->WWID))
&& (pcie_device->slot == le16_to_cpu(
pcie_device_pg0->Slot))) {
pcie_device->access_status =
pcie_device_pg0->AccessStatus;
pcie_device->responding = 1;
starget = pcie_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->tm_busy = 0;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
if (starget) {
starget_printk(KERN_INFO, starget,
"handle(0x%04x), wwid(0x%016llx) ",
pcie_device->handle,
(unsigned long long)pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), "
"slot(%d)\n",
(unsigned long long)
pcie_device->enclosure_logical_id,
pcie_device->slot);
}
if (((le32_to_cpu(pcie_device_pg0->Flags)) &
MPI26_PCIEDEV0_FLAGS_ENCL_LEVEL_VALID) &&
(ioc->hba_mpi_version_belonged != MPI2_VERSION)) {
pcie_device->enclosure_level =
pcie_device_pg0->EnclosureLevel;
memcpy(&pcie_device->connector_name[0],
&pcie_device_pg0->ConnectorName[0], 4);
} else {
pcie_device->enclosure_level = 0;
pcie_device->connector_name[0] = '\0';
}
if (pcie_device->handle == le16_to_cpu(
pcie_device_pg0->DevHandle))
goto out;
pr_info("\thandle changed from(0x%04x)!!!\n",
pcie_device->handle);
pcie_device->handle = le16_to_cpu(
pcie_device_pg0->DevHandle);
if (sas_target_priv_data)
sas_target_priv_data->handle =
le16_to_cpu(pcie_device_pg0->DevHandle);
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_search_responding_pcie_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_pcie_devices(struct MPT3SAS_ADAPTER *ioc)
{
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u32 device_info;
ioc_info(ioc, "search for end-devices: start\n");
if (list_empty(&ioc->pcie_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from %s: ioc_status(0x%04x), loginfo(0x%08x)\n",
__func__, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(pcie_device_pg0.DevHandle);
device_info = le32_to_cpu(pcie_device_pg0.DeviceInfo);
if (!(_scsih_is_nvme_pciescsi_device(device_info)))
continue;
_scsih_mark_responding_pcie_device(ioc, &pcie_device_pg0);
}
out:
ioc_info(ioc, "search for PCIe end-devices: complete\n");
}
/**
* _scsih_mark_responding_raid_device - mark a raid_device as responding
* @ioc: per adapter object
* @wwid: world wide identifier for raid volume
* @handle: device handle
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_raid_devices.
*/
static void
_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
u16 handle)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
struct _raid_device *raid_device;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid == wwid && raid_device->starget) {
starget = raid_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
raid_device->responding = 1;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
starget_printk(KERN_INFO, raid_device->starget,
"handle(0x%04x), wwid(0x%016llx)\n", handle,
(unsigned long long)raid_device->wwid);
/*
* WARPDRIVE: The handles of the PDs might have changed
* across the host reset so re-initialize the
* required data for Direct IO
*/
mpt3sas_init_warpdrive_properties(ioc, raid_device);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
if (raid_device->handle == handle) {
spin_unlock_irqrestore(&ioc->raid_device_lock,
flags);
return;
}
pr_info("\thandle changed from(0x%04x)!!!\n",
raid_device->handle);
raid_device->handle = handle;
if (sas_target_priv_data)
sas_target_priv_data->handle = handle;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return;
}
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_search_responding_raid_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u8 phys_disk_num;
if (!ioc->ir_firmware)
return;
ioc_info(ioc, "search for raid volumes: start\n");
if (list_empty(&ioc->raid_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
handle = le16_to_cpu(volume_pg1.DevHandle);
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
_scsih_mark_responding_raid_device(ioc,
le64_to_cpu(volume_pg1.WWID), handle);
}
/* refresh the pd_handles */
if (!ioc->is_warpdrive) {
phys_disk_num = 0xFF;
memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
phys_disk_num))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
set_bit(handle, ioc->pd_handles);
}
}
out:
ioc_info(ioc, "search for responding raid volumes: complete\n");
}
/**
* _scsih_mark_responding_expander - mark a expander as responding
* @ioc: per adapter object
* @expander_pg0:SAS Expander Config Page0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_expanders.
*/
static void
_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc,
Mpi2ExpanderPage0_t *expander_pg0)
{
struct _sas_node *sas_expander = NULL;
unsigned long flags;
int i;
struct _enclosure_node *enclosure_dev = NULL;
u16 handle = le16_to_cpu(expander_pg0->DevHandle);
u16 enclosure_handle = le16_to_cpu(expander_pg0->EnclosureHandle);
u64 sas_address = le64_to_cpu(expander_pg0->SASAddress);
if (enclosure_handle)
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
enclosure_handle);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
sas_expander->responding = 1;
if (enclosure_dev) {
sas_expander->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
sas_expander->enclosure_handle =
le16_to_cpu(expander_pg0->EnclosureHandle);
}
if (sas_expander->handle == handle)
goto out;
pr_info("\texpander(0x%016llx): handle changed" \
" from(0x%04x) to (0x%04x)!!!\n",
(unsigned long long)sas_expander->sas_address,
sas_expander->handle, handle);
sas_expander->handle = handle;
for (i = 0 ; i < sas_expander->num_phys ; i++)
sas_expander->phy[i].handle = handle;
goto out;
}
out:
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_search_responding_expanders -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u64 sas_address;
u16 handle;
ioc_info(ioc, "search for expanders: start\n");
if (list_empty(&ioc->sas_expander_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
handle = le16_to_cpu(expander_pg0.DevHandle);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
pr_info("\texpander present: handle(0x%04x), sas_addr(0x%016llx)\n",
handle,
(unsigned long long)sas_address);
_scsih_mark_responding_expander(ioc, &expander_pg0);
}
out:
ioc_info(ioc, "search for expanders: complete\n");
}
/**
* _scsih_remove_unresponding_devices - removing unresponding devices
* @ioc: per adapter object
*/
static void
_scsih_remove_unresponding_devices(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *sas_device_next;
struct _sas_node *sas_expander, *sas_expander_next;
struct _raid_device *raid_device, *raid_device_next;
struct _pcie_device *pcie_device, *pcie_device_next;
struct list_head tmp_list;
unsigned long flags;
LIST_HEAD(head);
ioc_info(ioc, "removing unresponding devices: start\n");
/* removing unresponding end devices */
ioc_info(ioc, "removing unresponding devices: end-devices\n");
/*
* Iterate, pulling off devices marked as non-responding. We become the
* owner for the reference the list had on any object we prune.
*/
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_list, list) {
if (!sas_device->responding)
list_move_tail(&sas_device->list, &head);
else
sas_device->responding = 0;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
/*
* Now, uninitialize and remove the unresponding devices we pruned.
*/
list_for_each_entry_safe(sas_device, sas_device_next, &head, list) {
_scsih_remove_device(ioc, sas_device);
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
ioc_info(ioc, "Removing unresponding devices: pcie end-devices\n");
INIT_LIST_HEAD(&head);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
list_for_each_entry_safe(pcie_device, pcie_device_next,
&ioc->pcie_device_list, list) {
if (!pcie_device->responding)
list_move_tail(&pcie_device->list, &head);
else
pcie_device->responding = 0;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
list_for_each_entry_safe(pcie_device, pcie_device_next, &head, list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
/* removing unresponding volumes */
if (ioc->ir_firmware) {
ioc_info(ioc, "removing unresponding devices: volumes\n");
list_for_each_entry_safe(raid_device, raid_device_next,
&ioc->raid_device_list, list) {
if (!raid_device->responding)
_scsih_sas_volume_delete(ioc,
raid_device->handle);
else
raid_device->responding = 0;
}
}
/* removing unresponding expanders */
ioc_info(ioc, "removing unresponding devices: expanders\n");
spin_lock_irqsave(&ioc->sas_node_lock, flags);
INIT_LIST_HEAD(&tmp_list);
list_for_each_entry_safe(sas_expander, sas_expander_next,
&ioc->sas_expander_list, list) {
if (!sas_expander->responding)
list_move_tail(&sas_expander->list, &tmp_list);
else
sas_expander->responding = 0;
}
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
list) {
_scsih_expander_node_remove(ioc, sas_expander);
}
ioc_info(ioc, "removing unresponding devices: complete\n");
/* unblock devices */
_scsih_ublock_io_all_device(ioc);
}
static void
_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander, u16 handle)
{
Mpi2ExpanderPage1_t expander_pg1;
Mpi2ConfigReply_t mpi_reply;
int i;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
le16_to_cpu(expander_pg1.AttachedDevHandle), i,
expander_pg1.NegotiatedLinkRate >> 4);
}
}
/**
* _scsih_scan_for_devices_after_reset - scan for devices after host reset
* @ioc: per adapter object
*/
static void
_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2EventIrConfigElement_t element;
Mpi2ConfigReply_t mpi_reply;
u8 phys_disk_num;
u16 ioc_status;
u16 handle, parent_handle;
u64 sas_address;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
struct _sas_node *expander_device;
static struct _raid_device *raid_device;
u8 retry_count;
unsigned long flags;
ioc_info(ioc, "scan devices: start\n");
_scsih_sas_host_refresh(ioc);
ioc_info(ioc, "\tscan devices: expanders start\n");
/* expanders */
handle = 0xFFFF;
while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from expander scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(expander_pg0.DevHandle);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
expander_device = mpt3sas_scsih_expander_find_by_sas_address(
ioc, le64_to_cpu(expander_pg0.SASAddress));
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (expander_device)
_scsih_refresh_expander_links(ioc, expander_device,
handle);
else {
ioc_info(ioc, "\tBEFORE adding expander: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(expander_pg0.SASAddress));
_scsih_expander_add(ioc, handle);
ioc_info(ioc, "\tAFTER adding expander: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(expander_pg0.SASAddress));
}
}
ioc_info(ioc, "\tscan devices: expanders complete\n");
if (!ioc->ir_firmware)
goto skip_to_sas;
ioc_info(ioc, "\tscan devices: phys disk start\n");
/* phys disk */
phys_disk_num = 0xFF;
while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
phys_disk_num))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from phys disk scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device_put(sas_device);
continue;
}
if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle) != 0)
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from phys disk scan ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle,
&sas_address)) {
ioc_info(ioc, "\tBEFORE adding phys disk: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
mpt3sas_transport_update_links(ioc, sas_address,
handle, sas_device_pg0.PhyNum,
MPI2_SAS_NEG_LINK_RATE_1_5);
set_bit(handle, ioc->pd_handles);
retry_count = 0;
/* This will retry adding the end device.
* _scsih_add_device() will decide on retries and
* return "1" when it should be retried
*/
while (_scsih_add_device(ioc, handle, retry_count++,
1)) {
ssleep(1);
}
ioc_info(ioc, "\tAFTER adding phys disk: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
}
}
ioc_info(ioc, "\tscan devices: phys disk complete\n");
ioc_info(ioc, "\tscan devices: volumes start\n");
/* volumes */
handle = 0xFFFF;
while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from volume scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(volume_pg1.DevHandle);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc,
le64_to_cpu(volume_pg1.WWID));
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
continue;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from volume scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
element.VolDevHandle = volume_pg1.DevHandle;
ioc_info(ioc, "\tBEFORE adding volume: handle (0x%04x)\n",
volume_pg1.DevHandle);
_scsih_sas_volume_add(ioc, &element);
ioc_info(ioc, "\tAFTER adding volume: handle (0x%04x)\n",
volume_pg1.DevHandle);
}
}
ioc_info(ioc, "\tscan devices: volumes complete\n");
skip_to_sas:
ioc_info(ioc, "\tscan devices: end devices start\n");
/* sas devices */
handle = 0xFFFF;
while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from end device scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(sas_device_pg0.DevHandle);
if (!(_scsih_is_end_device(
le32_to_cpu(sas_device_pg0.DeviceInfo))))
continue;
sas_device = mpt3sas_get_sdev_by_addr(ioc,
le64_to_cpu(sas_device_pg0.SASAddress));
if (sas_device) {
sas_device_put(sas_device);
continue;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
ioc_info(ioc, "\tBEFORE adding end device: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
retry_count = 0;
/* This will retry adding the end device.
* _scsih_add_device() will decide on retries and
* return "1" when it should be retried
*/
while (_scsih_add_device(ioc, handle, retry_count++,
0)) {
ssleep(1);
}
ioc_info(ioc, "\tAFTER adding end device: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
}
}
ioc_info(ioc, "\tscan devices: end devices complete\n");
ioc_info(ioc, "\tscan devices: pcie end devices start\n");
/* pcie devices */
handle = 0xFFFF;
while (!(mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus)
& MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from pcie end device scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(pcie_device_pg0.DevHandle);
if (!(_scsih_is_nvme_pciescsi_device(
le32_to_cpu(pcie_device_pg0.DeviceInfo))))
continue;
pcie_device = mpt3sas_get_pdev_by_wwid(ioc,
le64_to_cpu(pcie_device_pg0.WWID));
if (pcie_device) {
pcie_device_put(pcie_device);
continue;
}
retry_count = 0;
parent_handle = le16_to_cpu(pcie_device_pg0.ParentDevHandle);
_scsih_pcie_add_device(ioc, handle);
ioc_info(ioc, "\tAFTER adding pcie end device: handle (0x%04x), wwid(0x%016llx)\n",
handle, (u64)le64_to_cpu(pcie_device_pg0.WWID));
}
ioc_info(ioc, "\tpcie devices: pcie end devices complete\n");
ioc_info(ioc, "scan devices: complete\n");
}
/**
* mpt3sas_scsih_reset_handler - reset callback handler (for scsih)
* @ioc: per adapter object
*
* The handler for doing any required cleanup or initialization.
*/
void mpt3sas_scsih_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
{
dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_PRE_RESET\n", __func__));
}
/**
* mpt3sas_scsih_clear_outstanding_scsi_tm_commands - clears outstanding
* scsi & tm cmds.
* @ioc: per adapter object
*
* The handler for doing any required cleanup or initialization.
*/
void
mpt3sas_scsih_clear_outstanding_scsi_tm_commands(struct MPT3SAS_ADAPTER *ioc)
{
dtmprintk(ioc,
ioc_info(ioc, "%s: clear outstanding scsi & tm cmds\n", __func__));
if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
ioc->scsih_cmds.status |= MPT3_CMD_RESET;
mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
complete(&ioc->scsih_cmds.done);
}
if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
ioc->tm_cmds.status |= MPT3_CMD_RESET;
mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
complete(&ioc->tm_cmds.done);
}
memset(ioc->pend_os_device_add, 0, ioc->pend_os_device_add_sz);
memset(ioc->device_remove_in_progress, 0,
ioc->device_remove_in_progress_sz);
_scsih_fw_event_cleanup_queue(ioc);
_scsih_flush_running_cmds(ioc);
}
/**
* mpt3sas_scsih_reset_handler - reset callback handler (for scsih)
* @ioc: per adapter object
*
* The handler for doing any required cleanup or initialization.
*/
void
mpt3sas_scsih_reset_done_handler(struct MPT3SAS_ADAPTER *ioc)
{
dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_DONE_RESET\n", __func__));
if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
!ioc->sas_hba.num_phys)) {
_scsih_prep_device_scan(ioc);
_scsih_create_enclosure_list_after_reset(ioc);
_scsih_search_responding_sas_devices(ioc);
_scsih_search_responding_pcie_devices(ioc);
_scsih_search_responding_raid_devices(ioc);
_scsih_search_responding_expanders(ioc);
_scsih_error_recovery_delete_devices(ioc);
}
}
/**
* _mpt3sas_fw_work - delayed task for processing firmware events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
_scsih_fw_event_del_from_list(ioc, fw_event);
/* the queue is being flushed so ignore this event */
if (ioc->remove_host || ioc->pci_error_recovery) {
fw_event_work_put(fw_event);
return;
}
switch (fw_event->event) {
case MPT3SAS_PROCESS_TRIGGER_DIAG:
mpt3sas_process_trigger_data(ioc,
(struct SL_WH_TRIGGERS_EVENT_DATA_T *)
fw_event->event_data);
break;
case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
while (scsi_host_in_recovery(ioc->shost) ||
ioc->shost_recovery) {
/*
* If we're unloading, bail. Otherwise, this can become
* an infinite loop.
*/
if (ioc->remove_host)
goto out;
ssleep(1);
}
_scsih_remove_unresponding_devices(ioc);
_scsih_scan_for_devices_after_reset(ioc);
_scsih_set_nvme_max_shutdown_latency(ioc);
break;
case MPT3SAS_PORT_ENABLE_COMPLETE:
ioc->start_scan = 0;
if (missing_delay[0] != -1 && missing_delay[1] != -1)
mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
missing_delay[1]);
dewtprintk(ioc,
ioc_info(ioc, "port enable: complete from worker thread\n"));
break;
case MPT3SAS_TURN_ON_PFA_LED:
_scsih_turn_on_pfa_led(ioc, fw_event->device_handle);
break;
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_sas_topology_change_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_device_status_change_event_debug(ioc,
(Mpi2EventDataSasDeviceStatusChange_t *)
fw_event->event_data);
break;
case MPI2_EVENT_SAS_DISCOVERY:
_scsih_sas_discovery_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
_scsih_sas_device_discovery_error_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
_scsih_sas_broadcast_primitive_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
_scsih_sas_enclosure_dev_status_change_event(ioc,
fw_event);
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_sas_ir_config_change_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_sas_ir_volume_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_PHYSICAL_DISK:
_scsih_sas_ir_physical_disk_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
_scsih_sas_ir_operation_status_event(ioc, fw_event);
break;
case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
_scsih_pcie_device_status_change_event(ioc, fw_event);
break;
case MPI2_EVENT_PCIE_ENUMERATION:
_scsih_pcie_enumeration_event(ioc, fw_event);
break;
case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
_scsih_pcie_topology_change_event(ioc, fw_event);
return;
break;
}
out:
fw_event_work_put(fw_event);
}
/**
* _firmware_event_work
* @work: The fw_event_work object
* Context: user.
*
* wrappers for the work thread handling firmware events
*/
static void
_firmware_event_work(struct work_struct *work)
{
struct fw_event_work *fw_event = container_of(work,
struct fw_event_work, work);
_mpt3sas_fw_work(fw_event->ioc, fw_event);
}
/**
* mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
* @ioc: per adapter object
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt.
*
* This function merely adds a new work task into ioc->firmware_event_thread.
* The tasks are worked from _firmware_event_work in user context.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
u8
mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
u32 reply)
{
struct fw_event_work *fw_event;
Mpi2EventNotificationReply_t *mpi_reply;
u16 event;
u16 sz;
Mpi26EventDataActiveCableExcept_t *ActiveCableEventData;
/* events turned off due to host reset */
if (ioc->pci_error_recovery)
return 1;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (unlikely(!mpi_reply)) {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
event = le16_to_cpu(mpi_reply->Event);
if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
mpt3sas_trigger_event(ioc, event, 0);
switch (event) {
/* handle these */
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
{
Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
mpi_reply->EventData;
if (baen_data->Primitive !=
MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
return 1;
if (ioc->broadcast_aen_busy) {
ioc->broadcast_aen_pending++;
return 1;
} else
ioc->broadcast_aen_busy = 1;
break;
}
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_check_topo_delete_events(ioc,
(Mpi2EventDataSasTopologyChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
_scsih_check_pcie_topo_remove_events(ioc,
(Mpi26EventDataPCIeTopologyChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_check_ir_config_unhide_events(ioc,
(Mpi2EventDataIrConfigChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_check_volume_delete_events(ioc,
(Mpi2EventDataIrVolume_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_LOG_ENTRY_ADDED:
{
Mpi2EventDataLogEntryAdded_t *log_entry;
u32 *log_code;
if (!ioc->is_warpdrive)
break;
log_entry = (Mpi2EventDataLogEntryAdded_t *)
mpi_reply->EventData;
log_code = (u32 *)log_entry->LogData;
if (le16_to_cpu(log_entry->LogEntryQualifier)
!= MPT2_WARPDRIVE_LOGENTRY)
break;
switch (le32_to_cpu(*log_code)) {
case MPT2_WARPDRIVE_LC_SSDT:
ioc_warn(ioc, "WarpDrive Warning: IO Throttling has occurred in the WarpDrive subsystem. Check WarpDrive documentation for additional details.\n");
break;
case MPT2_WARPDRIVE_LC_SSDLW:
ioc_warn(ioc, "WarpDrive Warning: Program/Erase Cycles for the WarpDrive subsystem in degraded range. Check WarpDrive documentation for additional details.\n");
break;
case MPT2_WARPDRIVE_LC_SSDLF:
ioc_err(ioc, "WarpDrive Fatal Error: There are no Program/Erase Cycles for the WarpDrive subsystem. The storage device will be in read-only mode. Check WarpDrive documentation for additional details.\n");
break;
case MPT2_WARPDRIVE_LC_BRMF:
ioc_err(ioc, "WarpDrive Fatal Error: The Backup Rail Monitor has failed on the WarpDrive subsystem. Check WarpDrive documentation for additional details.\n");
break;
}
break;
}
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
_scsih_sas_device_status_change_event(ioc,
(Mpi2EventDataSasDeviceStatusChange_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
case MPI2_EVENT_SAS_DISCOVERY:
case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
case MPI2_EVENT_IR_PHYSICAL_DISK:
case MPI2_EVENT_PCIE_ENUMERATION:
case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
break;
case MPI2_EVENT_TEMP_THRESHOLD:
_scsih_temp_threshold_events(ioc,
(Mpi2EventDataTemperature_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
ActiveCableEventData =
(Mpi26EventDataActiveCableExcept_t *) mpi_reply->EventData;
switch (ActiveCableEventData->ReasonCode) {
case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
ioc_notice(ioc, "Currently an active cable with ReceptacleID %d\n",
ActiveCableEventData->ReceptacleID);
pr_notice("cannot be powered and devices connected\n");
pr_notice("to this active cable will not be seen\n");
pr_notice("This active cable requires %d mW of power\n",
ActiveCableEventData->ActiveCablePowerRequirement);
break;
case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
ioc_notice(ioc, "Currently a cable with ReceptacleID %d\n",
ActiveCableEventData->ReceptacleID);
pr_notice(
"is not running at optimal speed(12 Gb/s rate)\n");
break;
}
break;
default: /* ignore the rest */
return 1;
}
sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
fw_event = alloc_fw_event_work(sz);
if (!fw_event) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
memcpy(fw_event->event_data, mpi_reply->EventData, sz);
fw_event->ioc = ioc;
fw_event->VF_ID = mpi_reply->VF_ID;
fw_event->VP_ID = mpi_reply->VP_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
return 1;
}
/**
* _scsih_expander_node_remove - removing expander device from list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
*
* Removing object and freeing associated memory from the
* ioc->sas_expander_list.
*/
static void
_scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt3sas_port, *next;
unsigned long flags;
/* remove sibling ports attached to this expander */
list_for_each_entry_safe(mpt3sas_port, next,
&sas_expander->sas_port_list, port_list) {
if (ioc->shost_recovery)
return;
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpt3sas_device_remove_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address);
else if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpt3sas_expander_remove(ioc,
mpt3sas_port->remote_identify.sas_address);
}
mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_expander->sas_address_parent);
ioc_info(ioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n",
sas_expander->handle, (unsigned long long)
sas_expander->sas_address);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_del(&sas_expander->list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
kfree(sas_expander->phy);
kfree(sas_expander);
}
/**
* _scsih_nvme_shutdown - NVMe shutdown notification
* @ioc: per adapter object
*
* Sending IoUnitControl request with shutdown operation code to alert IOC that
* the host system is shutting down so that IOC can issue NVMe shutdown to
* NVMe drives attached to it.
*/
static void
_scsih_nvme_shutdown(struct MPT3SAS_ADAPTER *ioc)
{
Mpi26IoUnitControlRequest_t *mpi_request;
Mpi26IoUnitControlReply_t *mpi_reply;
u16 smid;
/* are there any NVMe devices ? */
if (list_empty(&ioc->pcie_device_list))
return;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
ioc_err(ioc,
"%s: failed obtaining a smid\n", __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi26IoUnitControlRequest_t));
mpi_request->Function = MPI2_FUNCTION_IO_UNIT_CONTROL;
mpi_request->Operation = MPI26_CTRL_OP_SHUTDOWN;
init_completion(&ioc->scsih_cmds.done);
ioc->put_smid_default(ioc, smid);
/* Wait for max_shutdown_latency seconds */
ioc_info(ioc,
"Io Unit Control shutdown (sending), Shutdown latency %d sec\n",
ioc->max_shutdown_latency);
wait_for_completion_timeout(&ioc->scsih_cmds.done,
ioc->max_shutdown_latency*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
ioc_err(ioc, "%s: timeout\n", __func__);
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
ioc_info(ioc, "Io Unit Control shutdown (complete):"
"ioc_status(0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
}
/**
* _scsih_ir_shutdown - IR shutdown notification
* @ioc: per adapter object
*
* Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
* the host system is shutting down.
*/
static void
_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2RaidActionRequest_t *mpi_request;
Mpi2RaidActionReply_t *mpi_reply;
u16 smid;
/* is IR firmware build loaded ? */
if (!ioc->ir_firmware)
return;
/* are there any volumes ? */
if (list_empty(&ioc->raid_device_list))
return;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
if (!ioc->hide_ir_msg)
ioc_info(ioc, "IR shutdown (sending)\n");
init_completion(&ioc->scsih_cmds.done);
ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
ioc_err(ioc, "%s: timeout\n", __func__);
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
if (!ioc->hide_ir_msg)
ioc_info(ioc, "IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
}
/**
* scsih_remove - detach and remove add host
* @pdev: PCI device struct
*
* Routine called when unloading the driver.
*/
static void scsih_remove(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct _sas_port *mpt3sas_port, *next_port;
struct _raid_device *raid_device, *next;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _pcie_device *pcie_device, *pcienext;
struct workqueue_struct *wq;
unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
ioc->remove_host = 1;
if (!pci_device_is_present(pdev))
_scsih_flush_running_cmds(ioc);
_scsih_fw_event_cleanup_queue(ioc);
spin_lock_irqsave(&ioc->fw_event_lock, flags);
wq = ioc->firmware_event_thread;
ioc->firmware_event_thread = NULL;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
/*
* Copy back the unmodified ioc page1. so that on next driver load,
* current modified changes on ioc page1 won't take effect.
*/
if (ioc->is_aero_ioc)
mpt3sas_config_set_ioc_pg1(ioc, &mpi_reply,
&ioc->ioc_pg1_copy);
/* release all the volumes */
_scsih_ir_shutdown(ioc);
sas_remove_host(shost);
list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
list) {
if (raid_device->starget) {
sas_target_priv_data =
raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
scsi_remove_target(&raid_device->starget->dev);
}
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
raid_device->handle, (u64)raid_device->wwid);
_scsih_raid_device_remove(ioc, raid_device);
}
list_for_each_entry_safe(pcie_device, pcienext, &ioc->pcie_device_list,
list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
/* free ports attached to the sas_host */
list_for_each_entry_safe(mpt3sas_port, next_port,
&ioc->sas_hba.sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpt3sas_device_remove_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address);
else if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpt3sas_expander_remove(ioc,
mpt3sas_port->remote_identify.sas_address);
}
/* free phys attached to the sas_host */
if (ioc->sas_hba.num_phys) {
kfree(ioc->sas_hba.phy);
ioc->sas_hba.phy = NULL;
ioc->sas_hba.num_phys = 0;
}
mpt3sas_base_detach(ioc);
spin_lock(&gioc_lock);
list_del(&ioc->list);
spin_unlock(&gioc_lock);
scsi_host_put(shost);
}
/**
* scsih_shutdown - routine call during system shutdown
* @pdev: PCI device struct
*/
static void
scsih_shutdown(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct workqueue_struct *wq;
unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
ioc->remove_host = 1;
if (!pci_device_is_present(pdev))
_scsih_flush_running_cmds(ioc);
_scsih_fw_event_cleanup_queue(ioc);
spin_lock_irqsave(&ioc->fw_event_lock, flags);
wq = ioc->firmware_event_thread;
ioc->firmware_event_thread = NULL;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
/*
* Copy back the unmodified ioc page1 so that on next driver load,
* current modified changes on ioc page1 won't take effect.
*/
if (ioc->is_aero_ioc)
mpt3sas_config_set_ioc_pg1(ioc, &mpi_reply,
&ioc->ioc_pg1_copy);
_scsih_ir_shutdown(ioc);
_scsih_nvme_shutdown(ioc);
mpt3sas_base_detach(ioc);
}
/**
* _scsih_probe_boot_devices - reports 1st device
* @ioc: per adapter object
*
* If specified in bios page 2, this routine reports the 1st
* device scsi-ml or sas transport for persistent boot device
* purposes. Please refer to function _scsih_determine_boot_device()
*/
static void
_scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc)
{
u32 channel;
void *device;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
struct _pcie_device *pcie_device;
u16 handle;
u64 sas_address_parent;
u64 sas_address;
unsigned long flags;
int rc;
int tid;
/* no Bios, return immediately */
if (!ioc->bios_pg3.BiosVersion)
return;
device = NULL;
if (ioc->req_boot_device.device) {
device = ioc->req_boot_device.device;
channel = ioc->req_boot_device.channel;
} else if (ioc->req_alt_boot_device.device) {
device = ioc->req_alt_boot_device.device;
channel = ioc->req_alt_boot_device.channel;
} else if (ioc->current_boot_device.device) {
device = ioc->current_boot_device.device;
channel = ioc->current_boot_device.channel;
}
if (!device)
return;
if (channel == RAID_CHANNEL) {
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 if (channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = device;
tid = pcie_device->id;
list_move_tail(&pcie_device->list, &ioc->pcie_device_list);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
rc = scsi_add_device(ioc->shost, PCIE_CHANNEL, tid, 0);
if (rc)
_scsih_pcie_device_remove(ioc, pcie_device);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = device;
handle = sas_device->handle;
sas_address_parent = sas_device->sas_address_parent;
sas_address = sas_device->sas_address;
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->hide_drives)
return;
if (!mpt3sas_transport_port_add(ioc, handle,
sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_address,
sas_address_parent);
_scsih_sas_device_remove(ioc, sas_device);
}
}
}
}
/**
* _scsih_probe_raid - reporting raid volumes to scsi-ml
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc)
{
struct _raid_device *raid_device, *raid_next;
int rc;
list_for_each_entry_safe(raid_device, raid_next,
&ioc->raid_device_list, list) {
if (raid_device->starget)
continue;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
}
}
static struct _sas_device *get_next_sas_device(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device = NULL;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
if (!list_empty(&ioc->sas_device_init_list)) {
sas_device = list_first_entry(&ioc->sas_device_init_list,
struct _sas_device, list);
sas_device_get(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return sas_device;
}
static void sas_device_make_active(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
/*
* Since we dropped the lock during the call to port_add(), we need to
* be careful here that somebody else didn't move or delete this item
* while we were busy with other things.
*
* If it was on the list, we need a put() for the reference the list
* had. Either way, we need a get() for the destination list.
*/
if (!list_empty(&sas_device->list)) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_probe_sas - reporting sas devices to sas transport
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device;
if (ioc->hide_drives)
return;
while ((sas_device = get_next_sas_device(ioc))) {
if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
sas_device->sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
sas_device_put(sas_device);
continue;
} else if (!sas_device->starget) {
/*
* When asyn scanning is enabled, its not possible to
* remove devices while scanning is turned on due to an
* oops in scsi_sysfs_add_sdev()->add_device()->
* sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
_scsih_sas_device_remove(ioc, sas_device);
sas_device_put(sas_device);
continue;
}
}
sas_device_make_active(ioc, sas_device);
sas_device_put(sas_device);
}
}
/**
* get_next_pcie_device - Get the next pcie device
* @ioc: per adapter object
*
* Get the next pcie device from pcie_device_init_list list.
*
* Return: pcie device structure if pcie_device_init_list list is not empty
* otherwise returns NULL
*/
static struct _pcie_device *get_next_pcie_device(struct MPT3SAS_ADAPTER *ioc)
{
struct _pcie_device *pcie_device = NULL;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
if (!list_empty(&ioc->pcie_device_init_list)) {
pcie_device = list_first_entry(&ioc->pcie_device_init_list,
struct _pcie_device, list);
pcie_device_get(pcie_device);
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return pcie_device;
}
/**
* pcie_device_make_active - Add pcie device to pcie_device_list list
* @ioc: per adapter object
* @pcie_device: pcie device object
*
* Add the pcie device which has registered with SCSI Transport Later to
* pcie_device_list list
*/
static void pcie_device_make_active(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
pcie_device_get(pcie_device);
list_add_tail(&pcie_device->list, &ioc->pcie_device_list);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_probe_pcie - reporting PCIe devices to scsi-ml
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_pcie(struct MPT3SAS_ADAPTER *ioc)
{
struct _pcie_device *pcie_device;
int rc;
/* PCIe Device List */
while ((pcie_device = get_next_pcie_device(ioc))) {
if (pcie_device->starget) {
pcie_device_put(pcie_device);
continue;
}
if (pcie_device->access_status ==
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED) {
pcie_device_make_active(ioc, pcie_device);
pcie_device_put(pcie_device);
continue;
}
rc = scsi_add_device(ioc->shost, PCIE_CHANNEL,
pcie_device->id, 0);
if (rc) {
_scsih_pcie_device_remove(ioc, pcie_device);
pcie_device_put(pcie_device);
continue;
} else if (!pcie_device->starget) {
/*
* When async scanning is enabled, its not possible to
* remove devices while scanning is turned on due to an
* oops in scsi_sysfs_add_sdev()->add_device()->
* sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
/* TODO-- Need to find out whether this condition will
* occur or not
*/
_scsih_pcie_device_remove(ioc, pcie_device);
pcie_device_put(pcie_device);
continue;
}
}
pcie_device_make_active(ioc, pcie_device);
pcie_device_put(pcie_device);
}
}
/**
* _scsih_probe_devices - probing for devices
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
{
u16 volume_mapping_flags;
if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
return; /* return when IOC doesn't support initiator mode */
_scsih_probe_boot_devices(ioc);
if (ioc->ir_firmware) {
volume_mapping_flags =
le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (volume_mapping_flags ==
MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
_scsih_probe_raid(ioc);
_scsih_probe_sas(ioc);
} else {
_scsih_probe_sas(ioc);
_scsih_probe_raid(ioc);
}
} else {
_scsih_probe_sas(ioc);
_scsih_probe_pcie(ioc);
}
}
/**
* scsih_scan_start - scsi lld callback for .scan_start
* @shost: SCSI host pointer
*
* The shost has the ability to discover targets on its own instead
* of scanning the entire bus. In our implemention, we will kick off
* firmware discovery.
*/
static void
scsih_scan_start(struct Scsi_Host *shost)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
int rc;
if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
else if (ioc->manu_pg11.HostTraceBufferMaxSizeKB != 0)
mpt3sas_enable_diag_buffer(ioc, 1);
if (disable_discovery > 0)
return;
ioc->start_scan = 1;
rc = mpt3sas_port_enable(ioc);
if (rc != 0)
ioc_info(ioc, "port enable: FAILED\n");
}
/**
* scsih_scan_finished - scsi lld callback for .scan_finished
* @shost: SCSI host pointer
* @time: elapsed time of the scan in jiffies
*
* This function will be called periodicallyn until it returns 1 with the
* scsi_host and the elapsed time of the scan in jiffies. In our implemention,
* we wait for firmware discovery to complete, then return 1.
*/
static int
scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
if (disable_discovery > 0) {
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
return 1;
}
if (time >= (300 * HZ)) {
ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
ioc_info(ioc, "port enable: FAILED with timeout (timeout=300s)\n");
ioc->is_driver_loading = 0;
return 1;
}
if (ioc->start_scan)
return 0;
if (ioc->start_scan_failed) {
ioc_info(ioc, "port enable: FAILED with (ioc_status=0x%08x)\n",
ioc->start_scan_failed);
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
ioc->remove_host = 1;
return 1;
}
ioc_info(ioc, "port enable: SUCCESS\n");
ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
if (ioc->wait_for_discovery_to_complete) {
ioc->wait_for_discovery_to_complete = 0;
_scsih_probe_devices(ioc);
}
mpt3sas_base_start_watchdog(ioc);
ioc->is_driver_loading = 0;
return 1;
}
/* shost template for SAS 2.0 HBA devices */
static struct scsi_host_template mpt2sas_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,
.scan_finished = scsih_scan_finished,
.scan_start = scsih_scan_start,
.change_queue_depth = scsih_change_queue_depth,
.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 = 32767,
.cmd_per_lun = 7,
.shost_attrs = mpt3sas_host_attrs,
.sdev_attrs = mpt3sas_dev_attrs,
.track_queue_depth = 1,
.cmd_size = sizeof(struct scsiio_tracker),
};
/* raid transport support for SAS 2.0 HBA devices */
static struct raid_function_template mpt2sas_raid_functions = {
.cookie = &mpt2sas_driver_template,
.is_raid = scsih_is_raid,
.get_resync = scsih_get_resync,
.get_state = scsih_get_state,
};
/* shost template for SAS 3.0 HBA devices */
static struct scsi_host_template mpt3sas_driver_template = {
.module = THIS_MODULE,
.name = "Fusion MPT SAS Host",
.proc_name = MPT3SAS_DRIVER_NAME,
.queuecommand = scsih_qcmd,
.target_alloc = scsih_target_alloc,
.slave_alloc = scsih_slave_alloc,
.slave_configure = scsih_slave_configure,
.target_destroy = scsih_target_destroy,
.slave_destroy = scsih_slave_destroy,
.scan_finished = scsih_scan_finished,
.scan_start = scsih_scan_start,
.change_queue_depth = scsih_change_queue_depth,
.eh_abort_handler = scsih_abort,
.eh_device_reset_handler = scsih_dev_reset,
.eh_target_reset_handler = scsih_target_reset,
.eh_host_reset_handler = scsih_host_reset,
.bios_param = scsih_bios_param,
.can_queue = 1,
.this_id = -1,
.sg_tablesize = MPT3SAS_SG_DEPTH,
.max_sectors = 32767,
.max_segment_size = 0xffffffff,
.cmd_per_lun = 7,
.shost_attrs = mpt3sas_host_attrs,
.sdev_attrs = mpt3sas_dev_attrs,
.track_queue_depth = 1,
.cmd_size = sizeof(struct scsiio_tracker),
};
/* raid transport support for SAS 3.0 HBA devices */
static struct raid_function_template mpt3sas_raid_functions = {
.cookie = &mpt3sas_driver_template,
.is_raid = scsih_is_raid,
.get_resync = scsih_get_resync,
.get_state = scsih_get_state,
};
/**
* _scsih_determine_hba_mpi_version - determine in which MPI version class
* this device belongs to.
* @pdev: PCI device struct
*
* return MPI2_VERSION for SAS 2.0 HBA devices,
* MPI25_VERSION for SAS 3.0 HBA devices, and
* MPI26 VERSION for Cutlass & Invader SAS 3.0 HBA devices
*/
static u16
_scsih_determine_hba_mpi_version(struct pci_dev *pdev)
{
switch (pdev->device) {
case MPI2_MFGPAGE_DEVID_SSS6200:
case MPI2_MFGPAGE_DEVID_SAS2004:
case MPI2_MFGPAGE_DEVID_SAS2008:
case MPI2_MFGPAGE_DEVID_SAS2108_1:
case MPI2_MFGPAGE_DEVID_SAS2108_2:
case MPI2_MFGPAGE_DEVID_SAS2108_3:
case MPI2_MFGPAGE_DEVID_SAS2116_1:
case MPI2_MFGPAGE_DEVID_SAS2116_2:
case MPI2_MFGPAGE_DEVID_SAS2208_1:
case MPI2_MFGPAGE_DEVID_SAS2208_2:
case MPI2_MFGPAGE_DEVID_SAS2208_3:
case MPI2_MFGPAGE_DEVID_SAS2208_4:
case MPI2_MFGPAGE_DEVID_SAS2208_5:
case MPI2_MFGPAGE_DEVID_SAS2208_6:
case MPI2_MFGPAGE_DEVID_SAS2308_1:
case MPI2_MFGPAGE_DEVID_SAS2308_2:
case MPI2_MFGPAGE_DEVID_SAS2308_3:
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP:
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1:
return MPI2_VERSION;
case MPI25_MFGPAGE_DEVID_SAS3004:
case MPI25_MFGPAGE_DEVID_SAS3008:
case MPI25_MFGPAGE_DEVID_SAS3108_1:
case MPI25_MFGPAGE_DEVID_SAS3108_2:
case MPI25_MFGPAGE_DEVID_SAS3108_5:
case MPI25_MFGPAGE_DEVID_SAS3108_6:
return MPI25_VERSION;
case MPI26_MFGPAGE_DEVID_SAS3216:
case MPI26_MFGPAGE_DEVID_SAS3224:
case MPI26_MFGPAGE_DEVID_SAS3316_1:
case MPI26_MFGPAGE_DEVID_SAS3316_2:
case MPI26_MFGPAGE_DEVID_SAS3316_3:
case MPI26_MFGPAGE_DEVID_SAS3316_4:
case MPI26_MFGPAGE_DEVID_SAS3324_1:
case MPI26_MFGPAGE_DEVID_SAS3324_2:
case MPI26_MFGPAGE_DEVID_SAS3324_3:
case MPI26_MFGPAGE_DEVID_SAS3324_4:
case MPI26_MFGPAGE_DEVID_SAS3508:
case MPI26_MFGPAGE_DEVID_SAS3508_1:
case MPI26_MFGPAGE_DEVID_SAS3408:
case MPI26_MFGPAGE_DEVID_SAS3516:
case MPI26_MFGPAGE_DEVID_SAS3516_1:
case MPI26_MFGPAGE_DEVID_SAS3416:
case MPI26_MFGPAGE_DEVID_SAS3616:
case MPI26_ATLAS_PCIe_SWITCH_DEVID:
case MPI26_MFGPAGE_DEVID_CFG_SEC_3916:
case MPI26_MFGPAGE_DEVID_HARD_SEC_3916:
case MPI26_MFGPAGE_DEVID_CFG_SEC_3816:
case MPI26_MFGPAGE_DEVID_HARD_SEC_3816:
return MPI26_VERSION;
}
return 0;
}
/**
* _scsih_probe - attach and add scsi host
* @pdev: PCI device struct
* @id: pci device id
*
* Return: 0 success, anything else error.
*/
static int
_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT3SAS_ADAPTER *ioc;
struct Scsi_Host *shost = NULL;
int rv;
u16 hba_mpi_version;
/* Determine in which MPI version class this pci device belongs */
hba_mpi_version = _scsih_determine_hba_mpi_version(pdev);
if (hba_mpi_version == 0)
return -ENODEV;
/* Enumerate only SAS 2.0 HBA's if hbas_to_enumerate is one,
* for other generation HBA's return with -ENODEV
*/
if ((hbas_to_enumerate == 1) && (hba_mpi_version != MPI2_VERSION))
return -ENODEV;
/* Enumerate only SAS 3.0 HBA's if hbas_to_enumerate is two,
* for other generation HBA's return with -ENODEV
*/
if ((hbas_to_enumerate == 2) && (!(hba_mpi_version == MPI25_VERSION
|| hba_mpi_version == MPI26_VERSION)))
return -ENODEV;
switch (hba_mpi_version) {
case MPI2_VERSION:
pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
/* Use mpt2sas driver host template for SAS 2.0 HBA's */
shost = scsi_host_alloc(&mpt2sas_driver_template,
sizeof(struct MPT3SAS_ADAPTER));
if (!shost)
return -ENODEV;
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
ioc->hba_mpi_version_belonged = hba_mpi_version;
ioc->id = mpt2_ids++;
sprintf(ioc->driver_name, "%s", MPT2SAS_DRIVER_NAME);
switch (pdev->device) {
case MPI2_MFGPAGE_DEVID_SSS6200:
ioc->is_warpdrive = 1;
ioc->hide_ir_msg = 1;
break;
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP:
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1:
ioc->is_mcpu_endpoint = 1;
break;
default:
ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
break;
}
break;
case MPI25_VERSION:
case MPI26_VERSION:
/* Use mpt3sas driver host template for SAS 3.0 HBA's */
shost = scsi_host_alloc(&mpt3sas_driver_template,
sizeof(struct MPT3SAS_ADAPTER));
if (!shost)
return -ENODEV;
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
ioc->hba_mpi_version_belonged = hba_mpi_version;
ioc->id = mpt3_ids++;
sprintf(ioc->driver_name, "%s", MPT3SAS_DRIVER_NAME);
switch (pdev->device) {
case MPI26_MFGPAGE_DEVID_SAS3508:
case MPI26_MFGPAGE_DEVID_SAS3508_1:
case MPI26_MFGPAGE_DEVID_SAS3408:
case MPI26_MFGPAGE_DEVID_SAS3516:
case MPI26_MFGPAGE_DEVID_SAS3516_1:
case MPI26_MFGPAGE_DEVID_SAS3416:
case MPI26_MFGPAGE_DEVID_SAS3616:
case MPI26_ATLAS_PCIe_SWITCH_DEVID:
ioc->is_gen35_ioc = 1;
break;
case MPI26_MFGPAGE_DEVID_CFG_SEC_3816:
case MPI26_MFGPAGE_DEVID_CFG_SEC_3916:
dev_info(&pdev->dev,
"HBA is in Configurable Secure mode\n");
/* fall through */
case MPI26_MFGPAGE_DEVID_HARD_SEC_3816:
case MPI26_MFGPAGE_DEVID_HARD_SEC_3916:
ioc->is_aero_ioc = ioc->is_gen35_ioc = 1;
break;
default:
ioc->is_gen35_ioc = ioc->is_aero_ioc = 0;
}
if ((ioc->hba_mpi_version_belonged == MPI25_VERSION &&
pdev->revision >= SAS3_PCI_DEVICE_C0_REVISION) ||
(ioc->hba_mpi_version_belonged == MPI26_VERSION)) {
ioc->combined_reply_queue = 1;
if (ioc->is_gen35_ioc)
ioc->combined_reply_index_count =
MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT_G35;
else
ioc->combined_reply_index_count =
MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT_G3;
}
break;
default:
return -ENODEV;
}
INIT_LIST_HEAD(&ioc->list);
spin_lock(&gioc_lock);
list_add_tail(&ioc->list, &mpt3sas_ioc_list);
spin_unlock(&gioc_lock);
ioc->shost = shost;
ioc->pdev = pdev;
ioc->scsi_io_cb_idx = scsi_io_cb_idx;
ioc->tm_cb_idx = tm_cb_idx;
ioc->ctl_cb_idx = ctl_cb_idx;
ioc->base_cb_idx = base_cb_idx;
ioc->port_enable_cb_idx = port_enable_cb_idx;
ioc->transport_cb_idx = transport_cb_idx;
ioc->scsih_cb_idx = scsih_cb_idx;
ioc->config_cb_idx = config_cb_idx;
ioc->tm_tr_cb_idx = tm_tr_cb_idx;
ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
ioc->logging_level = logging_level;
ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
/* Host waits for minimum of six seconds */
ioc->max_shutdown_latency = IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT;
/*
* Enable MEMORY MOVE support flag.
*/
ioc->drv_support_bitmap |= MPT_DRV_SUPPORT_BITMAP_MEMMOVE;
ioc->enable_sdev_max_qd = enable_sdev_max_qd;
/* misc semaphores and spin locks */
mutex_init(&ioc->reset_in_progress_mutex);
/* initializing pci_access_mutex lock */
mutex_init(&ioc->pci_access_mutex);
spin_lock_init(&ioc->ioc_reset_in_progress_lock);
spin_lock_init(&ioc->scsi_lookup_lock);
spin_lock_init(&ioc->sas_device_lock);
spin_lock_init(&ioc->sas_node_lock);
spin_lock_init(&ioc->fw_event_lock);
spin_lock_init(&ioc->raid_device_lock);
spin_lock_init(&ioc->pcie_device_lock);
spin_lock_init(&ioc->diag_trigger_lock);
INIT_LIST_HEAD(&ioc->sas_device_list);
INIT_LIST_HEAD(&ioc->sas_device_init_list);
INIT_LIST_HEAD(&ioc->sas_expander_list);
INIT_LIST_HEAD(&ioc->enclosure_list);
INIT_LIST_HEAD(&ioc->pcie_device_list);
INIT_LIST_HEAD(&ioc->pcie_device_init_list);
INIT_LIST_HEAD(&ioc->fw_event_list);
INIT_LIST_HEAD(&ioc->raid_device_list);
INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
INIT_LIST_HEAD(&ioc->delayed_tr_list);
INIT_LIST_HEAD(&ioc->delayed_sc_list);
INIT_LIST_HEAD(&ioc->delayed_event_ack_list);
INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
INIT_LIST_HEAD(&ioc->reply_queue_list);
sprintf(ioc->name, "%s_cm%d", ioc->driver_name, ioc->id);
/* init shost parameters */
shost->max_cmd_len = 32;
shost->max_lun = max_lun;
shost->transportt = mpt3sas_transport_template;
shost->unique_id = ioc->id;
if (ioc->is_mcpu_endpoint) {
/* mCPU MPI support 64K max IO */
shost->max_sectors = 128;
ioc_info(ioc, "The max_sectors value is set to %d\n",
shost->max_sectors);
} else {
if (max_sectors != 0xFFFF) {
if (max_sectors < 64) {
shost->max_sectors = 64;
ioc_warn(ioc, "Invalid value %d passed for max_sectors, range is 64 to 32767. Assigning value of 64.\n",
max_sectors);
} else if (max_sectors > 32767) {
shost->max_sectors = 32767;
ioc_warn(ioc, "Invalid value %d passed for max_sectors, range is 64 to 32767.Assigning default value of 32767.\n",
max_sectors);
} else {
shost->max_sectors = max_sectors & 0xFFFE;
ioc_info(ioc, "The max_sectors value is set to %d\n",
shost->max_sectors);
}
}
}
/* register EEDP capabilities with SCSI layer */
if (prot_mask > 0)
scsi_host_set_prot(shost, prot_mask);
else
scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE2_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION);
scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
/* event thread */
snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
"fw_event_%s%d", ioc->driver_name, ioc->id);
ioc->firmware_event_thread = alloc_ordered_workqueue(
ioc->firmware_event_name, 0);
if (!ioc->firmware_event_thread) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_thread_fail;
}
ioc->is_driver_loading = 1;
if ((mpt3sas_base_attach(ioc))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_attach_fail;
}
if (ioc->is_warpdrive) {
if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS)
ioc->hide_drives = 0;
else if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_HIDE_ALL_DISKS)
ioc->hide_drives = 1;
else {
if (mpt3sas_get_num_volumes(ioc))
ioc->hide_drives = 1;
else
ioc->hide_drives = 0;
}
} else
ioc->hide_drives = 0;
rv = scsi_add_host(shost, &pdev->dev);
if (rv) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_add_shost_fail;
}
scsi_scan_host(shost);
return 0;
out_add_shost_fail:
mpt3sas_base_detach(ioc);
out_attach_fail:
destroy_workqueue(ioc->firmware_event_thread);
out_thread_fail:
spin_lock(&gioc_lock);
list_del(&ioc->list);
spin_unlock(&gioc_lock);
scsi_host_put(shost);
return rv;
}
#ifdef CONFIG_PM
/**
* scsih_suspend - power management suspend main entry point
* @pdev: PCI device struct
* @state: PM state change to (usually PCI_D3)
*
* Return: 0 success, anything else error.
*/
static int
scsih_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pci_power_t device_state;
mpt3sas_base_stop_watchdog(ioc);
flush_scheduled_work();
scsi_block_requests(shost);
_scsih_nvme_shutdown(ioc);
device_state = pci_choose_state(pdev, state);
ioc_info(ioc, "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
pdev, pci_name(pdev), device_state);
pci_save_state(pdev);
mpt3sas_base_free_resources(ioc);
pci_set_power_state(pdev, device_state);
return 0;
}
/**
* scsih_resume - power management resume main entry point
* @pdev: PCI device struct
*
* Return: 0 success, anything else error.
*/
static int
scsih_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
pci_power_t device_state = pdev->current_state;
int r;
ioc_info(ioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
pdev, pci_name(pdev), device_state);
pci_set_power_state(pdev, PCI_D0);
pci_enable_wake(pdev, PCI_D0, 0);
pci_restore_state(pdev);
ioc->pdev = pdev;
r = mpt3sas_base_map_resources(ioc);
if (r)
return r;
ioc_info(ioc, "Issuing Hard Reset as part of OS Resume\n");
mpt3sas_base_hard_reset_handler(ioc, SOFT_RESET);
scsi_unblock_requests(shost);
mpt3sas_base_start_watchdog(ioc);
return 0;
}
#endif /* CONFIG_PM */
/**
* scsih_pci_error_detected - Called when a PCI error is detected.
* @pdev: PCI device struct
* @state: PCI channel state
*
* Description: Called when a PCI error is detected.
*
* Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT.
*/
static pci_ers_result_t
scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
ioc_info(ioc, "PCI error: detected callback, state(%d)!!\n", state);
switch (state) {
case pci_channel_io_normal:
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
/* Fatal error, prepare for slot reset */
ioc->pci_error_recovery = 1;
scsi_block_requests(ioc->shost);
mpt3sas_base_stop_watchdog(ioc);
mpt3sas_base_free_resources(ioc);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
/* Permanent error, prepare for device removal */
ioc->pci_error_recovery = 1;
mpt3sas_base_stop_watchdog(ioc);
_scsih_flush_running_cmds(ioc);
return PCI_ERS_RESULT_DISCONNECT;
}
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* scsih_pci_slot_reset - Called when PCI slot has been reset.
* @pdev: PCI device struct
*
* Description: This routine is called by the pci error recovery
* code after the PCI slot has been reset, just before we
* should resume normal operations.
*/
static pci_ers_result_t
scsih_pci_slot_reset(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
int rc;
ioc_info(ioc, "PCI error: slot reset callback!!\n");
ioc->pci_error_recovery = 0;
ioc->pdev = pdev;
pci_restore_state(pdev);
rc = mpt3sas_base_map_resources(ioc);
if (rc)
return PCI_ERS_RESULT_DISCONNECT;
ioc_info(ioc, "Issuing Hard Reset as part of PCI Slot Reset\n");
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
ioc_warn(ioc, "hard reset: %s\n",
(rc == 0) ? "success" : "failed");
if (!rc)
return PCI_ERS_RESULT_RECOVERED;
else
return PCI_ERS_RESULT_DISCONNECT;
}
/**
* scsih_pci_resume() - resume normal ops after PCI reset
* @pdev: pointer to PCI device
*
* Called when the error recovery driver tells us that its
* OK to resume normal operation. Use completion to allow
* halted scsi ops to resume.
*/
static void
scsih_pci_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
ioc_info(ioc, "PCI error: resume callback!!\n");
mpt3sas_base_start_watchdog(ioc);
scsi_unblock_requests(ioc->shost);
}
/**
* scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
* @pdev: pointer to PCI device
*/
static pci_ers_result_t
scsih_pci_mmio_enabled(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
ioc_info(ioc, "PCI error: mmio enabled callback!!\n");
/* TODO - dump whatever for debugging purposes */
/* This called only if scsih_pci_error_detected returns
* PCI_ERS_RESULT_CAN_RECOVER. Read/write to the device still
* works, no need to reset slot.
*/
return PCI_ERS_RESULT_RECOVERED;
}
/**
* scsih__ncq_prio_supp - Check for NCQ command priority support
* @sdev: scsi device struct
*
* This is called when a user indicates they would like to enable
* ncq command priorities. This works only on SATA devices.
*/
bool scsih_ncq_prio_supp(struct scsi_device *sdev)
{
unsigned char *buf;
bool ncq_prio_supp = false;
if (!scsi_device_supports_vpd(sdev))
return ncq_prio_supp;
buf = kmalloc(SCSI_VPD_PG_LEN, GFP_KERNEL);
if (!buf)
return ncq_prio_supp;
if (!scsi_get_vpd_page(sdev, 0x89, buf, SCSI_VPD_PG_LEN))
ncq_prio_supp = (buf[213] >> 4) & 1;
kfree(buf);
return ncq_prio_supp;
}
/*
* The pci device ids are defined in mpi/mpi2_cnfg.h.
*/
static const struct pci_device_id mpt3sas_pci_table[] = {
/* Spitfire ~ 2004 */
{ 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 },
/* Meteor ~ 2116 */
{ 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 },
/* Thunderbolt ~ 2208 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
PCI_ANY_ID, PCI_ANY_ID },
/* Mustang ~ 2308 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1,
PCI_ANY_ID, PCI_ANY_ID },
/* SSS6200 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
PCI_ANY_ID, PCI_ANY_ID },
/* Fury ~ 3004 and 3008 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
PCI_ANY_ID, PCI_ANY_ID },
/* Invader ~ 3108 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
PCI_ANY_ID, PCI_ANY_ID },
/* Cutlass ~ 3216 and 3224 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3216,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3224,
PCI_ANY_ID, PCI_ANY_ID },
/* Intruder ~ 3316 and 3324 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_4,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_4,
PCI_ANY_ID, PCI_ANY_ID },
/* Ventura, Crusader, Harpoon & Tomcat ~ 3516, 3416, 3508 & 3408*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3508,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3508_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3408,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3516,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3516_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3416,
PCI_ANY_ID, PCI_ANY_ID },
/* Mercator ~ 3616*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3616,
PCI_ANY_ID, PCI_ANY_ID },
/* Aero SI 0x00E1 Configurable Secure
* 0x00E2 Hard Secure
*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_CFG_SEC_3916,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3916,
PCI_ANY_ID, PCI_ANY_ID },
/* Atlas PCIe Switch Management Port */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_ATLAS_PCIe_SWITCH_DEVID,
PCI_ANY_ID, PCI_ANY_ID },
/* Sea SI 0x00E5 Configurable Secure
* 0x00E6 Hard Secure
*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_CFG_SEC_3816,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3816,
PCI_ANY_ID, PCI_ANY_ID },
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mpt3sas_pci_table);
static struct pci_error_handlers _mpt3sas_err_handler = {
.error_detected = scsih_pci_error_detected,
.mmio_enabled = scsih_pci_mmio_enabled,
.slot_reset = scsih_pci_slot_reset,
.resume = scsih_pci_resume,
};
static struct pci_driver mpt3sas_driver = {
.name = MPT3SAS_DRIVER_NAME,
.id_table = mpt3sas_pci_table,
.probe = _scsih_probe,
.remove = scsih_remove,
.shutdown = scsih_shutdown,
.err_handler = &_mpt3sas_err_handler,
#ifdef CONFIG_PM
.suspend = scsih_suspend,
.resume = scsih_resume,
#endif
};
/**
* scsih_init - main entry point for this driver.
*
* Return: 0 success, anything else error.
*/
static int
scsih_init(void)
{
mpt2_ids = 0;
mpt3_ids = 0;
mpt3sas_base_initialize_callback_handler();
/* queuecommand callback hander */
scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
/* task management callback handler */
tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
/* base internal commands callback handler */
base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
port_enable_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_port_enable_done);
/* transport internal commands callback handler */
transport_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_transport_done);
/* scsih internal commands callback handler */
scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
/* configuration page API internal commands callback handler */
config_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_config_done);
/* ctl module callback handler */
ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_tm_tr_complete);
tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_tm_volume_tr_complete);
tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_sas_control_complete);
return 0;
}
/**
* scsih_exit - exit point for this driver (when it is a module).
*
* Return: 0 success, anything else error.
*/
static void
scsih_exit(void)
{
mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
mpt3sas_base_release_callback_handler(tm_cb_idx);
mpt3sas_base_release_callback_handler(base_cb_idx);
mpt3sas_base_release_callback_handler(port_enable_cb_idx);
mpt3sas_base_release_callback_handler(transport_cb_idx);
mpt3sas_base_release_callback_handler(scsih_cb_idx);
mpt3sas_base_release_callback_handler(config_cb_idx);
mpt3sas_base_release_callback_handler(ctl_cb_idx);
mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
/* raid transport support */
if (hbas_to_enumerate != 1)
raid_class_release(mpt3sas_raid_template);
if (hbas_to_enumerate != 2)
raid_class_release(mpt2sas_raid_template);
sas_release_transport(mpt3sas_transport_template);
}
/**
* _mpt3sas_init - main entry point for this driver.
*
* Return: 0 success, anything else error.
*/
static int __init
_mpt3sas_init(void)
{
int error;
pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
MPT3SAS_DRIVER_VERSION);
mpt3sas_transport_template =
sas_attach_transport(&mpt3sas_transport_functions);
if (!mpt3sas_transport_template)
return -ENODEV;
/* No need attach mpt3sas raid functions template
* if hbas_to_enumarate value is one.
*/
if (hbas_to_enumerate != 1) {
mpt3sas_raid_template =
raid_class_attach(&mpt3sas_raid_functions);
if (!mpt3sas_raid_template) {
sas_release_transport(mpt3sas_transport_template);
return -ENODEV;
}
}
/* No need to attach mpt2sas raid functions template
* if hbas_to_enumarate value is two
*/
if (hbas_to_enumerate != 2) {
mpt2sas_raid_template =
raid_class_attach(&mpt2sas_raid_functions);
if (!mpt2sas_raid_template) {
sas_release_transport(mpt3sas_transport_template);
return -ENODEV;
}
}
error = scsih_init();
if (error) {
scsih_exit();
return error;
}
mpt3sas_ctl_init(hbas_to_enumerate);
error = pci_register_driver(&mpt3sas_driver);
if (error)
scsih_exit();
return error;
}
/**
* _mpt3sas_exit - exit point for this driver (when it is a module).
*
*/
static void __exit
_mpt3sas_exit(void)
{
pr_info("mpt3sas version %s unloading\n",
MPT3SAS_DRIVER_VERSION);
mpt3sas_ctl_exit(hbas_to_enumerate);
pci_unregister_driver(&mpt3sas_driver);
scsih_exit();
}
module_init(_mpt3sas_init);
module_exit(_mpt3sas_exit);
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