diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 5382b5a44aff..a4f023bd5d2b 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -5064,7 +5064,7 @@ mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode) if (!timeleft) { printk(KERN_DEBUG "%s: Issuing Reset from %s!!\n", ioc->name, __func__); - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); mpt_free_msg_frame(ioc, mf); } goto out; @@ -6456,7 +6456,7 @@ out: issue_hard_reset = 0; printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", ioc->name, __func__); - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); mpt_free_msg_frame(ioc, mf); /* attempt one retry for a timed out command */ if (!retry_count) { @@ -6904,6 +6904,172 @@ mpt_halt_firmware(MPT_ADAPTER *ioc) } EXPORT_SYMBOL(mpt_halt_firmware); +/** + * mpt_SoftResetHandler - Issues a less expensive reset + * @ioc: Pointer to MPT_ADAPTER structure + * @sleepFlag: Indicates if sleep or schedule must be called. + + * + * Returns 0 for SUCCESS or -1 if FAILED. + * + * Message Unit Reset - instructs the IOC to reset the Reply Post and + * Free FIFO's. All the Message Frames on Reply Free FIFO are discarded. + * All posted buffers are freed, and event notification is turned off. + * IOC doesnt reply to any outstanding request. This will transfer IOC + * to READY state. + **/ +int +mpt_SoftResetHandler(MPT_ADAPTER *ioc, int sleepFlag) +{ + int rc; + int ii; + u8 cb_idx; + unsigned long flags; + u32 ioc_state; + unsigned long time_count; + + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SoftResetHandler Entered!\n", + ioc->name)); + + ioc_state = mpt_GetIocState(ioc, 0) & MPI_IOC_STATE_MASK; + + if (mpt_fwfault_debug) + mpt_halt_firmware(ioc); + + if (ioc_state == MPI_IOC_STATE_FAULT || + ioc_state == MPI_IOC_STATE_RESET) { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "skipping, either in FAULT or RESET state!\n", ioc->name)); + return -1; + } + + if (ioc->bus_type == FC) { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "skipping, because the bus type is FC!\n", ioc->name)); + return -1; + } + + spin_lock_irqsave(&ioc->taskmgmt_lock, flags); + if (ioc->ioc_reset_in_progress) { + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + return -1; + } + ioc->ioc_reset_in_progress = 1; + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + + rc = -1; + + for (cb_idx = MPT_MAX_PROTOCOL_DRIVERS-1; cb_idx; cb_idx--) { + if (MptResetHandlers[cb_idx]) + mpt_signal_reset(cb_idx, ioc, MPT_IOC_SETUP_RESET); + } + + spin_lock_irqsave(&ioc->taskmgmt_lock, flags); + if (ioc->taskmgmt_in_progress) { + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + return -1; + } + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + /* Disable reply interrupts (also blocks FreeQ) */ + CHIPREG_WRITE32(&ioc->chip->IntMask, 0xFFFFFFFF); + ioc->active = 0; + time_count = jiffies; + + rc = SendIocReset(ioc, MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET, sleepFlag); + + for (cb_idx = MPT_MAX_PROTOCOL_DRIVERS-1; cb_idx; cb_idx--) { + if (MptResetHandlers[cb_idx]) + mpt_signal_reset(cb_idx, ioc, MPT_IOC_PRE_RESET); + } + + if (rc) + goto out; + + ioc_state = mpt_GetIocState(ioc, 0) & MPI_IOC_STATE_MASK; + if (ioc_state != MPI_IOC_STATE_READY) + goto out; + + for (ii = 0; ii < 5; ii++) { + /* Get IOC facts! Allow 5 retries */ + rc = GetIocFacts(ioc, sleepFlag, + MPT_HOSTEVENT_IOC_RECOVER); + if (rc == 0) + break; + if (sleepFlag == CAN_SLEEP) + msleep(100); + else + mdelay(100); + } + if (ii == 5) + goto out; + + rc = PrimeIocFifos(ioc); + if (rc != 0) + goto out; + + rc = SendIocInit(ioc, sleepFlag); + if (rc != 0) + goto out; + + rc = SendEventNotification(ioc, 1, sleepFlag); + if (rc != 0) + goto out; + + if (ioc->hard_resets < -1) + ioc->hard_resets++; + + /* + * At this point, we know soft reset succeeded. + */ + + ioc->active = 1; + CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM); + + out: + spin_lock_irqsave(&ioc->taskmgmt_lock, flags); + ioc->ioc_reset_in_progress = 0; + ioc->taskmgmt_quiesce_io = 0; + ioc->taskmgmt_in_progress = 0; + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + + if (ioc->active) { /* otherwise, hard reset coming */ + for (cb_idx = MPT_MAX_PROTOCOL_DRIVERS-1; cb_idx; cb_idx--) { + if (MptResetHandlers[cb_idx]) + mpt_signal_reset(cb_idx, ioc, + MPT_IOC_POST_RESET); + } + } + + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "SoftResetHandler: completed (%d seconds): %s\n", + ioc->name, jiffies_to_msecs(jiffies - time_count)/1000, + ((rc == 0) ? "SUCCESS" : "FAILED"))); + + return rc; +} + +/** + * mpt_Soft_Hard_ResetHandler - Try less expensive reset + * @ioc: Pointer to MPT_ADAPTER structure + * @sleepFlag: Indicates if sleep or schedule must be called. + + * + * Returns 0 for SUCCESS or -1 if FAILED. + * Try for softreset first, only if it fails go for expensive + * HardReset. + **/ +int +mpt_Soft_Hard_ResetHandler(MPT_ADAPTER *ioc, int sleepFlag) { + int ret = -1; + + ret = mpt_SoftResetHandler(ioc, sleepFlag); + if (ret == 0) + return ret; + ret = mpt_HardResetHandler(ioc, sleepFlag); + return ret; +} +EXPORT_SYMBOL(mpt_Soft_Hard_ResetHandler); + /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /* * Reset Handling diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index 9718c8f2e959..e25dbfbb8fdf 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -940,6 +940,7 @@ extern int mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp); extern u32 mpt_GetIocState(MPT_ADAPTER *ioc, int cooked); extern void mpt_print_ioc_summary(MPT_ADAPTER *ioc, char *buf, int *size, int len, int showlan); extern int mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag); +extern int mpt_Soft_Hard_ResetHandler(MPT_ADAPTER *ioc, int sleepFlag); extern int mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *cfg); extern int mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size); extern void mpt_free_fw_memory(MPT_ADAPTER *ioc); diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index 80421d2cf049..e6d71e20fa09 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -311,7 +311,7 @@ mptctl_timeout_expired(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n", ioc->name)); CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status) - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); mpt_free_msg_frame(ioc, mf); } diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 76687126b573..e5e9bf3487db 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -2041,7 +2041,7 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset) if (!timeleft) { /* On timeout reset the board */ mpt_free_msg_frame(ioc, mf); - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); error = -ETIMEDOUT; goto out_unlock; } @@ -2226,7 +2226,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, if (!timeleft) { printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __func__); /* On timeout reset the board */ - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); ret = -ETIMEDOUT; goto unmap; } @@ -2833,7 +2833,7 @@ mptsas_exp_repmanufacture_info(MPT_ADAPTER *ioc, if (ioc->sas_mgmt.status & MPT_MGMT_STATUS_DID_IOCRESET) goto out_free; if (!timeleft) - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); goto out_free; } @@ -4717,7 +4717,7 @@ mptsas_broadcast_primative_work(struct fw_event_work *fw_event) if (issue_reset) { printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", ioc->name, __func__); - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); } mptsas_free_fw_event(ioc, fw_event); } diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 6796597dcee0..929d584855d2 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1711,7 +1711,7 @@ mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, if (issue_hard_reset) { printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", ioc->name, __func__); - retval = mpt_HardResetHandler(ioc, CAN_SLEEP); + retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); mpt_free_msg_frame(ioc, mf); } @@ -1991,7 +1991,7 @@ mptscsih_host_reset(struct scsi_cmnd *SCpnt) /* If our attempts to reset the host failed, then return a failed * status. The host will be taken off line by the SCSI mid-layer. */ - retval = mpt_HardResetHandler(ioc, CAN_SLEEP); + retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); if (retval < 0) status = FAILED; else @@ -3040,7 +3040,7 @@ mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) if (!timeleft) { printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", ioc->name, __func__); - mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); mpt_free_msg_frame(ioc, mf); } goto out;