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;
issue_hard_reset = 0;
printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
ioc->name, __func__);
- mpt_HardResetHandler(ioc, CAN_SLEEP);
+ if (retry_count == 0) {
+ if (mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP) != 0)
+ retry_count++;
+ } else
+ mpt_HardResetHandler(ioc, CAN_SLEEP);
+
mpt_free_msg_frame(ioc, mf);
/* attempt one retry for a timed out command */
- if (!retry_count) {
+ if (retry_count < 2) {
printk(MYIOC_s_INFO_FMT
"Attempting Retry Config request"
" type 0x%x, page 0x%x,"
}
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
git.openpandora.org / pandora-kernel.git / blobdiff