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mptsas.c
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/*
* linux/drivers/message/fusion/mptsas.c
* For use with LSI PCI chip/adapter(s)
* running LSI Fusion MPT (Message Passing Technology) firmware.
*
* Copyright (c) 1999-2008 LSI Corporation
* (mailto:[email protected])
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
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; version 2 of the License.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/jiffies.h>
#include <linux/workqueue.h>
#include <linux/delay.h> /* for mdelay */
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_sas.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_dbg.h>
#include "mptbase.h"
#include "mptscsih.h"
#include "mptsas.h"
#define my_NAME "Fusion MPT SAS Host driver"
#define my_VERSION MPT_LINUX_VERSION_COMMON
#define MYNAM "mptsas"
/*
* Reserved channel for integrated raid
*/
#define MPTSAS_RAID_CHANNEL 1
#define SAS_CONFIG_PAGE_TIMEOUT 30
MODULE_AUTHOR(MODULEAUTHOR);
MODULE_DESCRIPTION(my_NAME);
MODULE_LICENSE("GPL");
MODULE_VERSION(my_VERSION);
static int mpt_pt_clear;
module_param(mpt_pt_clear, int, 0);
MODULE_PARM_DESC(mpt_pt_clear,
" Clear persistency table: enable=1 "
"(default=MPTSCSIH_PT_CLEAR=0)");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPTSAS_MAX_LUN (16895)
static int max_lun = MPTSAS_MAX_LUN;
module_param(max_lun, int, 0);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
static int mpt_loadtime_max_sectors = 8192;
module_param(mpt_loadtime_max_sectors, int, 0);
MODULE_PARM_DESC(mpt_loadtime_max_sectors,
" Maximum sector define for Host Bus Adaptor.Range 64 to 8192 default=8192");
static u8 mptsasDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
static u8 mptsasTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
static u8 mptsasInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */
static u8 mptsasMgmtCtx = MPT_MAX_PROTOCOL_DRIVERS;
static u8 mptsasDeviceResetCtx = MPT_MAX_PROTOCOL_DRIVERS;
static void mptsas_firmware_event_work(struct work_struct *work);
static void mptsas_send_sas_event(struct fw_event_work *fw_event);
static void mptsas_send_raid_event(struct fw_event_work *fw_event);
static void mptsas_send_ir2_event(struct fw_event_work *fw_event);
static void mptsas_parse_device_info(struct sas_identify *identify,
struct mptsas_devinfo *device_info);
static inline void mptsas_set_rphy(MPT_ADAPTER *ioc,
struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy);
static struct mptsas_phyinfo *mptsas_find_phyinfo_by_sas_address
(MPT_ADAPTER *ioc, u64 sas_address);
static int mptsas_sas_device_pg0(MPT_ADAPTER *ioc,
struct mptsas_devinfo *device_info, u32 form, u32 form_specific);
static int mptsas_sas_enclosure_pg0(MPT_ADAPTER *ioc,
struct mptsas_enclosure *enclosure, u32 form, u32 form_specific);
static int mptsas_add_end_device(MPT_ADAPTER *ioc,
struct mptsas_phyinfo *phy_info);
static void mptsas_del_end_device(MPT_ADAPTER *ioc,
struct mptsas_phyinfo *phy_info);
static void mptsas_send_link_status_event(struct fw_event_work *fw_event);
static struct mptsas_portinfo *mptsas_find_portinfo_by_sas_address
(MPT_ADAPTER *ioc, u64 sas_address);
static void mptsas_expander_delete(MPT_ADAPTER *ioc,
struct mptsas_portinfo *port_info, u8 force);
static void mptsas_send_expander_event(struct fw_event_work *fw_event);
static void mptsas_not_responding_devices(MPT_ADAPTER *ioc);
static void mptsas_scan_sas_topology(MPT_ADAPTER *ioc);
static void mptsas_broadcast_primative_work(struct fw_event_work *fw_event);
static void mptsas_handle_queue_full_event(struct fw_event_work *fw_event);
static void mptsas_volume_delete(MPT_ADAPTER *ioc, u8 id);
void mptsas_schedule_target_reset(void *ioc);
static void mptsas_print_phy_data(MPT_ADAPTER *ioc,
MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
{
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"---- IO UNIT PAGE 0 ------------\n", ioc->name));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Handle=0x%X\n",
ioc->name, le16_to_cpu(phy_data->AttachedDeviceHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Controller Handle=0x%X\n",
ioc->name, le16_to_cpu(phy_data->ControllerDevHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Port=0x%X\n",
ioc->name, phy_data->Port));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Port Flags=0x%X\n",
ioc->name, phy_data->PortFlags));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Flags=0x%X\n",
ioc->name, phy_data->PhyFlags));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Negotiated Link Rate=0x%X\n",
ioc->name, phy_data->NegotiatedLinkRate));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Controller PHY Device Info=0x%X\n", ioc->name,
le32_to_cpu(phy_data->ControllerPhyDeviceInfo)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "DiscoveryStatus=0x%X\n\n",
ioc->name, le32_to_cpu(phy_data->DiscoveryStatus)));
}
static void mptsas_print_phy_pg0(MPT_ADAPTER *ioc, SasPhyPage0_t *pg0)
{
__le64 sas_address;
memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"---- SAS PHY PAGE 0 ------------\n", ioc->name));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Attached Device Handle=0x%X\n", ioc->name,
le16_to_cpu(pg0->AttachedDevHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SAS Address=0x%llX\n",
ioc->name, (unsigned long long)le64_to_cpu(sas_address)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Attached PHY Identifier=0x%X\n", ioc->name,
pg0->AttachedPhyIdentifier));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Attached Device Info=0x%X\n",
ioc->name, le32_to_cpu(pg0->AttachedDeviceInfo)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Programmed Link Rate=0x%X\n",
ioc->name, pg0->ProgrammedLinkRate));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Change Count=0x%X\n",
ioc->name, pg0->ChangeCount));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Info=0x%X\n\n",
ioc->name, le32_to_cpu(pg0->PhyInfo)));
}
static void mptsas_print_phy_pg1(MPT_ADAPTER *ioc, SasPhyPage1_t *pg1)
{
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"---- SAS PHY PAGE 1 ------------\n", ioc->name));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Invalid Dword Count=0x%x\n",
ioc->name, pg1->InvalidDwordCount));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Running Disparity Error Count=0x%x\n", ioc->name,
pg1->RunningDisparityErrorCount));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Loss Dword Synch Count=0x%x\n", ioc->name,
pg1->LossDwordSynchCount));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"PHY Reset Problem Count=0x%x\n\n", ioc->name,
pg1->PhyResetProblemCount));
}
static void mptsas_print_device_pg0(MPT_ADAPTER *ioc, SasDevicePage0_t *pg0)
{
__le64 sas_address;
memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"---- SAS DEVICE PAGE 0 ---------\n", ioc->name));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Handle=0x%X\n",
ioc->name, le16_to_cpu(pg0->DevHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Parent Handle=0x%X\n",
ioc->name, le16_to_cpu(pg0->ParentDevHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Enclosure Handle=0x%X\n",
ioc->name, le16_to_cpu(pg0->EnclosureHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Slot=0x%X\n",
ioc->name, le16_to_cpu(pg0->Slot)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SAS Address=0x%llX\n",
ioc->name, (unsigned long long)le64_to_cpu(sas_address)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Target ID=0x%X\n",
ioc->name, pg0->TargetID));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Bus=0x%X\n",
ioc->name, pg0->Bus));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Parent Phy Num=0x%X\n",
ioc->name, pg0->PhyNum));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Access Status=0x%X\n",
ioc->name, le16_to_cpu(pg0->AccessStatus)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Device Info=0x%X\n",
ioc->name, le32_to_cpu(pg0->DeviceInfo)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Flags=0x%X\n",
ioc->name, le16_to_cpu(pg0->Flags)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Physical Port=0x%X\n\n",
ioc->name, pg0->PhysicalPort));
}
static void mptsas_print_expander_pg1(MPT_ADAPTER *ioc, SasExpanderPage1_t *pg1)
{
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"---- SAS EXPANDER PAGE 1 ------------\n", ioc->name));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Physical Port=0x%X\n",
ioc->name, pg1->PhysicalPort));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Identifier=0x%X\n",
ioc->name, pg1->PhyIdentifier));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Negotiated Link Rate=0x%X\n",
ioc->name, pg1->NegotiatedLinkRate));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Programmed Link Rate=0x%X\n",
ioc->name, pg1->ProgrammedLinkRate));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hardware Link Rate=0x%X\n",
ioc->name, pg1->HwLinkRate));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Owner Device Handle=0x%X\n",
ioc->name, le16_to_cpu(pg1->OwnerDevHandle)));
dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Attached Device Handle=0x%X\n\n", ioc->name,
le16_to_cpu(pg1->AttachedDevHandle)));
}
/* inhibit sas firmware event handling */
static void
mptsas_fw_event_off(MPT_ADAPTER *ioc)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
ioc->fw_events_off = 1;
ioc->sas_discovery_quiesce_io = 0;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/* enable sas firmware event handling */
static void
mptsas_fw_event_on(MPT_ADAPTER *ioc)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
ioc->fw_events_off = 0;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/* queue a sas firmware event */
static void
mptsas_add_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
unsigned long delay)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_DELAYED_WORK(&fw_event->work, mptsas_firmware_event_work);
devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: add (fw_event=0x%p)"
"on cpuid %d\n", ioc->name, __func__,
fw_event, smp_processor_id()));
queue_delayed_work_on(smp_processor_id(), ioc->fw_event_q,
&fw_event->work, delay);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/* requeue a sas firmware event */
static void
mptsas_requeue_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
unsigned long delay)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: reschedule task "
"(fw_event=0x%p)on cpuid %d\n", ioc->name, __func__,
fw_event, smp_processor_id()));
fw_event->retries++;
queue_delayed_work_on(smp_processor_id(), ioc->fw_event_q,
&fw_event->work, msecs_to_jiffies(delay));
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/* free memory associated to a sas firmware event */
static void
mptsas_free_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: kfree (fw_event=0x%p)\n",
ioc->name, __func__, fw_event));
list_del(&fw_event->list);
kfree(fw_event);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/* walk the firmware event queue, and either stop or wait for
* outstanding events to complete */
static void
mptsas_cleanup_fw_event_q(MPT_ADAPTER *ioc)
{
struct fw_event_work *fw_event, *next;
struct mptsas_target_reset_event *target_reset_list, *n;
MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
/* flush the target_reset_list */
if (!list_empty(&hd->target_reset_list)) {
list_for_each_entry_safe(target_reset_list, n,
&hd->target_reset_list, list) {
dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"%s: removing target reset for id=%d\n",
ioc->name, __func__,
target_reset_list->sas_event_data.TargetID));
list_del(&target_reset_list->list);
kfree(target_reset_list);
}
}
if (list_empty(&ioc->fw_event_list) ||
!ioc->fw_event_q || in_interrupt())
return;
list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
if (cancel_delayed_work(&fw_event->work))
mptsas_free_fw_event(ioc, fw_event);
}
}
static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy)
{
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
}
static inline MPT_ADAPTER *rphy_to_ioc(struct sas_rphy *rphy)
{
struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
}
/*
* mptsas_find_portinfo_by_handle
*
* This function should be called with the sas_topology_mutex already held
*/
static struct mptsas_portinfo *
mptsas_find_portinfo_by_handle(MPT_ADAPTER *ioc, u16 handle)
{
struct mptsas_portinfo *port_info, *rc=NULL;
int i;
list_for_each_entry(port_info, &ioc->sas_topology, list)
for (i = 0; i < port_info->num_phys; i++)
if (port_info->phy_info[i].identify.handle == handle) {
rc = port_info;
goto out;
}
out:
return rc;
}
/**
* mptsas_find_portinfo_by_sas_address -
* @ioc: Pointer to MPT_ADAPTER structure
* @handle:
*
* This function should be called with the sas_topology_mutex already held
*
**/
static struct mptsas_portinfo *
mptsas_find_portinfo_by_sas_address(MPT_ADAPTER *ioc, u64 sas_address)
{
struct mptsas_portinfo *port_info, *rc = NULL;
int i;
if (sas_address >= ioc->hba_port_sas_addr &&
sas_address < (ioc->hba_port_sas_addr +
ioc->hba_port_num_phy))
return ioc->hba_port_info;
mutex_lock(&ioc->sas_topology_mutex);
list_for_each_entry(port_info, &ioc->sas_topology, list)
for (i = 0; i < port_info->num_phys; i++)
if (port_info->phy_info[i].identify.sas_address ==
sas_address) {
rc = port_info;
goto out;
}
out:
mutex_unlock(&ioc->sas_topology_mutex);
return rc;
}
/*
* Returns true if there is a scsi end device
*/
static inline int
mptsas_is_end_device(struct mptsas_devinfo * attached)
{
if ((attached->sas_address) &&
(attached->device_info &
MPI_SAS_DEVICE_INFO_END_DEVICE) &&
((attached->device_info &
MPI_SAS_DEVICE_INFO_SSP_TARGET) |
(attached->device_info &
MPI_SAS_DEVICE_INFO_STP_TARGET) |
(attached->device_info &
MPI_SAS_DEVICE_INFO_SATA_DEVICE)))
return 1;
else
return 0;
}
/* no mutex */
static void
mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
{
struct mptsas_portinfo *port_info;
struct mptsas_phyinfo *phy_info;
u8 i;
if (!port_details)
return;
port_info = port_details->port_info;
phy_info = port_info->phy_info;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: num_phys=%02d "
"bitmask=0x%016llX\n", ioc->name, __func__, port_details,
port_details->num_phys, (unsigned long long)
port_details->phy_bitmask));
for (i = 0; i < port_info->num_phys; i++, phy_info++) {
if(phy_info->port_details != port_details)
continue;
memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
mptsas_set_rphy(ioc, phy_info, NULL);
phy_info->port_details = NULL;
}
kfree(port_details);
}
static inline struct sas_rphy *
mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
{
if (phy_info->port_details)
return phy_info->port_details->rphy;
else
return NULL;
}
static inline void
mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
{
if (phy_info->port_details) {
phy_info->port_details->rphy = rphy;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
ioc->name, rphy));
}
if (rphy) {
dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
&rphy->dev, MYIOC_s_FMT "add:", ioc->name));
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
ioc->name, rphy, rphy->dev.release));
}
}
static inline struct sas_port *
mptsas_get_port(struct mptsas_phyinfo *phy_info)
{
if (phy_info->port_details)
return phy_info->port_details->port;
else
return NULL;
}
static inline void
mptsas_set_port(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_port *port)
{
if (phy_info->port_details)
phy_info->port_details->port = port;
if (port) {
dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
&port->dev, MYIOC_s_FMT "add:", ioc->name));
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "port=%p release=%p\n",
ioc->name, port, port->dev.release));
}
}
static inline struct scsi_target *
mptsas_get_starget(struct mptsas_phyinfo *phy_info)
{
if (phy_info->port_details)
return phy_info->port_details->starget;
else
return NULL;
}
static inline void
mptsas_set_starget(struct mptsas_phyinfo *phy_info, struct scsi_target *
starget)
{
if (phy_info->port_details)
phy_info->port_details->starget = starget;
}
/**
* mptsas_add_device_component -
* @ioc: Pointer to MPT_ADAPTER structure
* @channel: fw mapped id's
* @id:
* @sas_address:
* @device_info:
*
**/
static void
mptsas_add_device_component(MPT_ADAPTER *ioc, u8 channel, u8 id,
u64 sas_address, u32 device_info, u16 slot, u64 enclosure_logical_id)
{
struct mptsas_device_info *sas_info, *next;
struct scsi_device *sdev;
struct scsi_target *starget;
struct sas_rphy *rphy;
/*
* Delete all matching devices out of the list
*/
mutex_lock(&ioc->sas_device_info_mutex);
list_for_each_entry_safe(sas_info, next, &ioc->sas_device_info_list,
list) {
if (!sas_info->is_logical_volume &&
(sas_info->sas_address == sas_address ||
(sas_info->fw.channel == channel &&
sas_info->fw.id == id))) {
list_del(&sas_info->list);
kfree(sas_info);
}
}
sas_info = kzalloc(sizeof(struct mptsas_device_info), GFP_KERNEL);
if (!sas_info)
goto out;
/*
* Set Firmware mapping
*/
sas_info->fw.id = id;
sas_info->fw.channel = channel;
sas_info->sas_address = sas_address;
sas_info->device_info = device_info;
sas_info->slot = slot;
sas_info->enclosure_logical_id = enclosure_logical_id;
INIT_LIST_HEAD(&sas_info->list);
list_add_tail(&sas_info->list, &ioc->sas_device_info_list);
/*
* Set OS mapping
*/
shost_for_each_device(sdev, ioc->sh) {
starget = scsi_target(sdev);
rphy = dev_to_rphy(starget->dev.parent);
if (rphy->identify.sas_address == sas_address) {
sas_info->os.id = starget->id;
sas_info->os.channel = starget->channel;
}
}
out:
mutex_unlock(&ioc->sas_device_info_mutex);
return;
}
/**
* mptsas_add_device_component_by_fw -
* @ioc: Pointer to MPT_ADAPTER structure
* @channel: fw mapped id's
* @id:
*
**/
static void
mptsas_add_device_component_by_fw(MPT_ADAPTER *ioc, u8 channel, u8 id)
{
struct mptsas_devinfo sas_device;
struct mptsas_enclosure enclosure_info;
int rc;
rc = mptsas_sas_device_pg0(ioc, &sas_device,
(MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID <<
MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
(channel << 8) + id);
if (rc)
return;
memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure));
mptsas_sas_enclosure_pg0(ioc, &enclosure_info,
(MPI_SAS_ENCLOS_PGAD_FORM_HANDLE <<
MPI_SAS_ENCLOS_PGAD_FORM_SHIFT),
sas_device.handle_enclosure);
mptsas_add_device_component(ioc, sas_device.channel,
sas_device.id, sas_device.sas_address, sas_device.device_info,
sas_device.slot, enclosure_info.enclosure_logical_id);
}
/**
* mptsas_add_device_component_starget_ir - Handle Integrated RAID, adding each individual device to list
* @ioc: Pointer to MPT_ADAPTER structure
* @channel: fw mapped id's
* @id:
*
**/
static void
mptsas_add_device_component_starget_ir(MPT_ADAPTER *ioc,
struct scsi_target *starget)
{
CONFIGPARMS cfg;
ConfigPageHeader_t hdr;
dma_addr_t dma_handle;
pRaidVolumePage0_t buffer = NULL;
int i;
RaidPhysDiskPage0_t phys_disk;
struct mptsas_device_info *sas_info, *next;
memset(&cfg, 0 , sizeof(CONFIGPARMS));
memset(&hdr, 0 , sizeof(ConfigPageHeader_t));
hdr.PageType = MPI_CONFIG_PAGETYPE_RAID_VOLUME;
/* assumption that all volumes on channel = 0 */
cfg.pageAddr = starget->id;
cfg.cfghdr.hdr = &hdr;
cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
cfg.timeout = SAS_CONFIG_PAGE_TIMEOUT;
if (mpt_config(ioc, &cfg) != 0)
goto out;
if (!hdr.PageLength)
goto out;
buffer = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4,
&dma_handle);
if (!buffer)
goto out;
cfg.physAddr = dma_handle;
cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
if (mpt_config(ioc, &cfg) != 0)
goto out;
if (!buffer->NumPhysDisks)
goto out;
/*
* Adding entry for hidden components
*/
for (i = 0; i < buffer->NumPhysDisks; i++) {
if (mpt_raid_phys_disk_pg0(ioc,
buffer->PhysDisk[i].PhysDiskNum, &phys_disk) != 0)
continue;
mptsas_add_device_component_by_fw(ioc, phys_disk.PhysDiskBus,
phys_disk.PhysDiskID);
mutex_lock(&ioc->sas_device_info_mutex);
list_for_each_entry(sas_info, &ioc->sas_device_info_list,
list) {
if (!sas_info->is_logical_volume &&
(sas_info->fw.channel == phys_disk.PhysDiskBus &&
sas_info->fw.id == phys_disk.PhysDiskID)) {
sas_info->is_hidden_raid_component = 1;
sas_info->volume_id = starget->id;
}
}
mutex_unlock(&ioc->sas_device_info_mutex);
}
/*
* Delete all matching devices out of the list
*/
mutex_lock(&ioc->sas_device_info_mutex);
list_for_each_entry_safe(sas_info, next, &ioc->sas_device_info_list,
list) {
if (sas_info->is_logical_volume && sas_info->fw.id ==
starget->id) {
list_del(&sas_info->list);
kfree(sas_info);
}
}
sas_info = kzalloc(sizeof(struct mptsas_device_info), GFP_KERNEL);
if (sas_info) {
sas_info->fw.id = starget->id;
sas_info->os.id = starget->id;
sas_info->os.channel = starget->channel;
sas_info->is_logical_volume = 1;
INIT_LIST_HEAD(&sas_info->list);
list_add_tail(&sas_info->list, &ioc->sas_device_info_list);
}
mutex_unlock(&ioc->sas_device_info_mutex);
out:
if (buffer)
pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, buffer,
dma_handle);
}
/**
* mptsas_add_device_component_starget -
* @ioc: Pointer to MPT_ADAPTER structure
* @starget:
*
**/
static void
mptsas_add_device_component_starget(MPT_ADAPTER *ioc,
struct scsi_target *starget)
{
VirtTarget *vtarget;
struct sas_rphy *rphy;
struct mptsas_phyinfo *phy_info = NULL;
struct mptsas_enclosure enclosure_info;
rphy = dev_to_rphy(starget->dev.parent);
vtarget = starget->hostdata;
phy_info = mptsas_find_phyinfo_by_sas_address(ioc,
rphy->identify.sas_address);
if (!phy_info)
return;
memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure));
mptsas_sas_enclosure_pg0(ioc, &enclosure_info,
(MPI_SAS_ENCLOS_PGAD_FORM_HANDLE <<
MPI_SAS_ENCLOS_PGAD_FORM_SHIFT),
phy_info->attached.handle_enclosure);
mptsas_add_device_component(ioc, phy_info->attached.channel,
phy_info->attached.id, phy_info->attached.sas_address,
phy_info->attached.device_info,
phy_info->attached.slot, enclosure_info.enclosure_logical_id);
}
/**
* mptsas_del_device_component_by_os - Once a device has been removed, we mark the entry in the list as being cached
* @ioc: Pointer to MPT_ADAPTER structure
* @channel: os mapped id's
* @id:
*
**/
static void
mptsas_del_device_component_by_os(MPT_ADAPTER *ioc, u8 channel, u8 id)
{
struct mptsas_device_info *sas_info, *next;
/*
* Set is_cached flag
*/
list_for_each_entry_safe(sas_info, next, &ioc->sas_device_info_list,
list) {
if (sas_info->os.channel == channel && sas_info->os.id == id)
sas_info->is_cached = 1;
}
}
/**
* mptsas_del_device_components - Cleaning the list
* @ioc: Pointer to MPT_ADAPTER structure
*
**/
static void
mptsas_del_device_components(MPT_ADAPTER *ioc)
{
struct mptsas_device_info *sas_info, *next;
mutex_lock(&ioc->sas_device_info_mutex);
list_for_each_entry_safe(sas_info, next, &ioc->sas_device_info_list,
list) {
list_del(&sas_info->list);
kfree(sas_info);
}
mutex_unlock(&ioc->sas_device_info_mutex);
}
/*
* mptsas_setup_wide_ports
*
* Updates for new and existing narrow/wide port configuration
* in the sas_topology
*/
static void
mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
{
struct mptsas_portinfo_details * port_details;
struct mptsas_phyinfo *phy_info, *phy_info_cmp;
u64 sas_address;
int i, j;
mutex_lock(&ioc->sas_topology_mutex);
phy_info = port_info->phy_info;
for (i = 0 ; i < port_info->num_phys ; i++, phy_info++) {
if (phy_info->attached.handle)
continue;
port_details = phy_info->port_details;
if (!port_details)
continue;
if (port_details->num_phys < 2)
continue;
/*
* Removing a phy from a port, letting the last
* phy be removed by firmware events.
*/
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"%s: [%p]: deleting phy = %d\n",
ioc->name, __func__, port_details, i));
port_details->num_phys--;
port_details->phy_bitmask &= ~ (1 << phy_info->phy_id);
memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
if (phy_info->phy) {
devtprintk(ioc, dev_printk(KERN_DEBUG,
&phy_info->phy->dev, MYIOC_s_FMT
"delete phy %d, phy-obj (0x%p)\n", ioc->name,
phy_info->phy_id, phy_info->phy));
sas_port_delete_phy(port_details->port, phy_info->phy);
}
phy_info->port_details = NULL;
}
/*
* Populate and refresh the tree
*/
phy_info = port_info->phy_info;
for (i = 0 ; i < port_info->num_phys ; i++, phy_info++) {
sas_address = phy_info->attached.sas_address;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "phy_id=%d sas_address=0x%018llX\n",
ioc->name, i, (unsigned long long)sas_address));
if (!sas_address)
continue;
port_details = phy_info->port_details;
/*
* Forming a port
*/
if (!port_details) {
port_details = kzalloc(sizeof(struct
mptsas_portinfo_details), GFP_KERNEL);
if (!port_details)
goto out;
port_details->num_phys = 1;
port_details->port_info = port_info;
if (phy_info->phy_id < 64 )
port_details->phy_bitmask |=
(1 << phy_info->phy_id);
phy_info->sas_port_add_phy=1;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tForming port\n\t\t"
"phy_id=%d sas_address=0x%018llX\n",
ioc->name, i, (unsigned long long)sas_address));
phy_info->port_details = port_details;
}
if (i == port_info->num_phys - 1)
continue;
phy_info_cmp = &port_info->phy_info[i + 1];
for (j = i + 1 ; j < port_info->num_phys ; j++,
phy_info_cmp++) {
if (!phy_info_cmp->attached.sas_address)
continue;
if (sas_address != phy_info_cmp->attached.sas_address)
continue;
if (phy_info_cmp->port_details == port_details )
continue;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"\t\tphy_id=%d sas_address=0x%018llX\n",
ioc->name, j, (unsigned long long)
phy_info_cmp->attached.sas_address));
if (phy_info_cmp->port_details) {
port_details->rphy =
mptsas_get_rphy(phy_info_cmp);
port_details->port =
mptsas_get_port(phy_info_cmp);
port_details->starget =
mptsas_get_starget(phy_info_cmp);
port_details->num_phys =
phy_info_cmp->port_details->num_phys;
if (!phy_info_cmp->port_details->num_phys)
kfree(phy_info_cmp->port_details);
} else
phy_info_cmp->sas_port_add_phy=1;
/*
* Adding a phy to a port
*/
phy_info_cmp->port_details = port_details;
if (phy_info_cmp->phy_id < 64 )
port_details->phy_bitmask |=
(1 << phy_info_cmp->phy_id);
port_details->num_phys++;
}
}
out:
for (i = 0; i < port_info->num_phys; i++) {
port_details = port_info->phy_info[i].port_details;
if (!port_details)
continue;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"%s: [%p]: phy_id=%02d num_phys=%02d "
"bitmask=0x%016llX\n", ioc->name, __func__,
port_details, i, port_details->num_phys,
(unsigned long long)port_details->phy_bitmask));
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tport = %p rphy=%p\n",
ioc->name, port_details->port, port_details->rphy));
}
dsaswideprintk(ioc, printk("\n"));
mutex_unlock(&ioc->sas_topology_mutex);
}
/**
* csmisas_find_vtarget
*
* @ioc
* @volume_id
* @volume_bus
*
**/
static VirtTarget *
mptsas_find_vtarget(MPT_ADAPTER *ioc, u8 channel, u8 id)
{
struct scsi_device *sdev;
VirtDevice *vdevice;
VirtTarget *vtarget = NULL;
shost_for_each_device(sdev, ioc->sh) {
vdevice = sdev->hostdata;
if ((vdevice == NULL) ||
(vdevice->vtarget == NULL))
continue;
if ((vdevice->vtarget->tflags &
MPT_TARGET_FLAGS_RAID_COMPONENT ||
vdevice->vtarget->raidVolume))
continue;
if (vdevice->vtarget->id == id &&
vdevice->vtarget->channel == channel)
vtarget = vdevice->vtarget;
}
return vtarget;
}
static void
mptsas_queue_device_delete(MPT_ADAPTER *ioc,
MpiEventDataSasDeviceStatusChange_t *sas_event_data)
{
struct fw_event_work *fw_event;
fw_event = kzalloc(sizeof(*fw_event) +
sizeof(MpiEventDataSasDeviceStatusChange_t),
GFP_ATOMIC);
if (!fw_event) {
printk(MYIOC_s_WARN_FMT "%s: failed at (line=%d)\n",
ioc->name, __func__, __LINE__);
return;