lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[SCSI] mptspi: Add transport class Domain Validation

Browse Source 
This is the first half of a patch to add the generic domain validation
to mptspi.  It also creates a secondary "virtual" channel for raid
component devices since these are now exported with no_uld_attach.

What Eric and I would have really liked is to export all physical
components on channel 0 and all raid components on channel 1.
Unfortunately, this would result in device renumbering on platforms with
mixed RAID/Physical devices which was considered unacceptable for
userland stability reasons.

Still to be done is to plug back the extra parameter setting and DV
pieces on reset and hotplug.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley
2006-03-01 09:02:49 -06:00
committed by James Bottomley
parent 3ef0b47ee4
commit c92f222e1f
6 changed files with 773 additions and 2458 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
drivers/message/fusion/mptbase.c
View File

@@ -1120,65 +1120,6 @@ mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp)
return -1;
}
int
mpt_alt_ioc_wait(MPT_ADAPTER *ioc)
{
int loop_count = 30 * 4; /* Wait 30 seconds */
int status = -1; /* -1 means failed to get board READY */
do {
spin_lock(&ioc->initializing_hba_lock);
if (ioc->initializing_hba_lock_flag == 0) {
ioc->initializing_hba_lock_flag=1;
spin_unlock(&ioc->initializing_hba_lock);
status = 0;
break;
}
spin_unlock(&ioc->initializing_hba_lock);
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/4);
} while (--loop_count);
return status;
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* mpt_bringup_adapter - This is a wrapper function for mpt_do_ioc_recovery
* @ioc: Pointer to MPT adapter structure
* @sleepFlag: Use schedule if CAN_SLEEP else use udelay.
*
* This routine performs all the steps necessary to bring the IOC
* to a OPERATIONAL state.
*
* Special Note: This function was added with spin lock's so as to allow
* the dv(domain validation) work thread to succeed on the other channel
* that maybe occuring at the same time when this function is called.
* Without this lock, the dv would fail when message frames were
* requested during hba bringup on the alternate ioc.
*/
static int
mpt_bringup_adapter(MPT_ADAPTER *ioc, int sleepFlag)
{
int r;
if(ioc->alt_ioc) {
if((r=mpt_alt_ioc_wait(ioc->alt_ioc)!=0))
return r;
}
r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
CAN_SLEEP);
if(ioc->alt_ioc) {
spin_lock(&ioc->alt_ioc->initializing_hba_lock);
ioc->alt_ioc->initializing_hba_lock_flag=0;
spin_unlock(&ioc->alt_ioc->initializing_hba_lock);
}
return r;
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* mpt_attach - Install a PCI intelligent MPT adapter.
@@ -1482,7 +1423,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
*/
mpt_detect_bound_ports(ioc, pdev);
if ((r = mpt_bringup_adapter(ioc, CAN_SLEEP)) != 0){
if ((r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
CAN_SLEEP)) != 0){
printk(KERN_WARNING MYNAM
": WARNING - %s did not initialize properly! (%d)\n",
ioc->name, r);
@@ -1629,7 +1571,6 @@ mpt_resume(struct pci_dev *pdev)
MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
u32 device_state = pdev->current_state;
int recovery_state;
int ii;
printk(MYIOC_s_INFO_FMT
"pci-resume: pdev=0x%p, slot=%s, Previous operating state [D%d]\n",
@@ -1643,14 +1584,6 @@ mpt_resume(struct pci_dev *pdev)
CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM);
ioc->active = 1;
/* F/W not running */
if(!CHIPREG_READ32(&ioc->chip->Doorbell)) {
/* enable domain validation flags */
for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
ioc->spi_data.dvStatus[ii] |= MPT_SCSICFG_NEED_DV;
}
}
printk(MYIOC_s_INFO_FMT
"pci-resume: ioc-state=0x%x,doorbell=0x%x\n",
ioc->name,
@@ -6435,7 +6368,6 @@ EXPORT_SYMBOL(mpt_read_ioc_pg_3);
EXPORT_SYMBOL(mpt_alloc_fw_memory);
EXPORT_SYMBOL(mpt_free_fw_memory);
EXPORT_SYMBOL(mptbase_sas_persist_operation);
EXPORT_SYMBOL(mpt_alt_ioc_wait);
EXPORT_SYMBOL(mptbase_GetFcPortPage0);