diff options
Diffstat (limited to 'drivers/message/fusion/mptbase.c')
| -rw-r--r-- | drivers/message/fusion/mptbase.c | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 65c2ec5c421bf..4262a22adc22d 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1118,6 +1118,65 @@ 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. @@ -1186,6 +1245,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) ioc->pcidev = pdev; ioc->diagPending = 0; spin_lock_init(&ioc->diagLock); + spin_lock_init(&ioc->initializing_hba_lock); /* Initialize the event logging. */ @@ -1408,8 +1468,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) */ mpt_detect_bound_ports(ioc, pdev); - if ((r = mpt_do_ioc_recovery(ioc, - MPT_HOSTEVENT_IOC_BRINGUP, CAN_SLEEP)) != 0) { + if ((r = mpt_bringup_adapter(ioc, CAN_SLEEP)) != 0){ printk(KERN_WARNING MYNAM ": WARNING - %s did not initialize properly! (%d)\n", ioc->name, r); @@ -6298,6 +6357,7 @@ 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); /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |