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yaml
---
r: 232786
b: refs/heads/master
c: ec07a05
h: refs/heads/master
v: v3
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Kashyap, Desai authored and James Bottomley committed Jan 24, 2011
1 parent 3d3a62a commit dbd134d
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Showing 2 changed files with 46 additions and 10 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 11e1b961ab067ee3acaf723531da4d3f23e1d6f7
refs/heads/master: ec07a053597bdab51cbd23619f9f9f392712508a
54 changes: 45 additions & 9 deletions trunk/drivers/scsi/mpt2sas/mpt2sas_scsih.c
Original file line number Diff line number Diff line change
Expand Up @@ -819,7 +819,7 @@ _scsih_is_end_device(u32 device_info)
}

/**
* mptscsih_get_scsi_lookup - returns scmd entry
* _scsih_scsi_lookup_get - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
*
Expand All @@ -831,6 +831,28 @@ _scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
return ioc->scsi_lookup[smid - 1].scmd;
}

/**
* _scsih_scsi_lookup_get_clear - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
*
* Returns the smid stored scmd pointer.
* Then will derefrence the stored scmd pointer.
*/
static inline struct scsi_cmnd *
_scsih_scsi_lookup_get_clear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
unsigned long flags;
struct scsi_cmnd *scmd;

spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
scmd = ioc->scsi_lookup[smid - 1].scmd;
ioc->scsi_lookup[smid - 1].scmd = NULL;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);

return scmd;
}

/**
* _scsih_scsi_lookup_find_by_scmd - scmd lookup
* @ioc: per adapter object
Expand Down Expand Up @@ -3207,7 +3229,7 @@ _scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
u16 count = 0;

for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
scmd = _scsih_scsi_lookup_get(ioc, smid);
scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
if (!scmd)
continue;
count++;
Expand Down Expand Up @@ -3801,7 +3823,7 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
u32 response_code = 0;

mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
scmd = _scsih_scsi_lookup_get(ioc, smid);
scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
if (scmd == NULL)
return 1;

Expand Down Expand Up @@ -5102,6 +5124,7 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct scsi_cmnd *scmd;
struct scsi_device *sdev;
u16 smid, handle;
u32 lun;
struct MPT2SAS_DEVICE *sas_device_priv_data;
Expand All @@ -5112,20 +5135,26 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
#endif
u16 ioc_status;
unsigned long flags;
int r;

dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "broadcast primative: "
"phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
event_data->PortWidth));
dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
__func__));

spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->broadcast_aen_busy = 0;
termination_count = 0;
query_count = 0;
mpi_reply = ioc->tm_cmds.reply;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
scmd = _scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
sas_device_priv_data = scmd->device->hostdata;
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 */
Expand All @@ -5141,6 +5170,7 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
lun = sas_device_priv_data->lun;
query_count++;

spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, NULL);
ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
Expand All @@ -5150,14 +5180,20 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
(mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC)) {
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
continue;

mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30, NULL);
}
r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
scmd);
if (r == FAILED)
sdev_printk(KERN_WARNING, sdev, "task abort: FAILED "
"scmd(%p)\n", scmd);
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
}
ioc->broadcast_aen_busy = 0;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);

dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
"%s - exit, query_count = %d termination_count = %d\n",
Expand Down

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