commit de2f8abf310040e9633ceec0f72b5a630dd70f29
author Madan Mohan Koyyalamudi <c_mkoyya@qca.qualcomm.com> Thu Nov 08 15:08:14 2012 -0800
committer Jeff Johnson <jjohnson@qca.qualcomm.com> Fri Nov 30 15:09:04 2012 -0800
tree cd4d844e92b22f7014bf7ec70f2d98b862ac8923
parent e388b342c092ab320d262c8ad729cba8bd2c0524

wlan: Handle DXE CHs transfer error cases

Currently, FW cannot handle DXE transfer error cases properly
- RX error most likely corrupted frame pushed into DXE RX
  FW should remove this corrupted frame from WQ, but FW does not have
  error handler
- TX error most likely HW already BMU fatal error state
  Cannot be recoverable
So, quick solution to resolve this problem is restart WLAN driver

Change-Id: Ia306a04ed6d998e3f3f99a321c27295d68be2c8e
CR-Fixed: 415791

CORE/DXE/src/wlan_qct_dxe.c

diff --git a/CORE/DXE/src/wlan_qct_dxe.c b/CORE/DXE/src/wlan_qct_dxe.c
index 6d30e73..7ce32c4 100644
--- a/CORE/DXE/src/wlan_qct_dxe.c
+++ b/CORE/DXE/src/wlan_qct_dxe.c
@@ -2502,6 +2502,11 @@
       if(WLANDXE_CH_STAT_INT_ERR_MASK & chHighStat)
       {
          /* Error Happen during transaction, Handle it */
+         HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_FATAL,
+                  "%11s : 0x%x Error Reported, Reload Driver",
+                  channelType[channelCb->channelType], chHighStat);
+         dxeCtxt->driverReloadInProcessing = eWLAN_PAL_TRUE;
+         wpalWlanReload();
       }
       else if((WLANDXE_CH_STAT_INT_DONE_MASK & chHighStat) ||
               (WLANDXE_CH_STAT_INT_ED_MASK & chHighStat))
@@ -2544,6 +2549,11 @@
       if(WLANDXE_CH_STAT_INT_ERR_MASK & chStat)
       {
          /* Error Happen during transaction, Handle it */
+         HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_FATAL,
+                  "%11s : 0x%x Error Reported, Reload Driver",
+                  channelType[channelCb->channelType], chStat);
+         dxeCtxt->driverReloadInProcessing = eWLAN_PAL_TRUE;
+         wpalWlanReload();
       }
       else if(WLANDXE_CH_STAT_INT_ED_MASK & chStat)
       {
@@ -2582,6 +2592,11 @@
       if(WLANDXE_CH_STAT_INT_ERR_MASK & chLowStat)
       {
          /* Error Happen during transaction, Handle it */
+         HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_FATAL,
+                  "%11s : 0x%x Error Reported, Reload Driver",
+                  channelType[channelCb->channelType], chLowStat);
+         dxeCtxt->driverReloadInProcessing = eWLAN_PAL_TRUE;
+         wpalWlanReload();
       }
       else if(WLANDXE_CH_STAT_INT_ED_MASK & chLowStat)
       {
@@ -3401,8 +3416,8 @@
          dxeCtxt->txIntEnable =  eWLAN_PAL_TRUE; 
          wpalEnableInterrupt(DXE_INTERRUPT_TX_COMPLE);
          HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_WARN,
-                  "TX COMP INT Enabled, remain TX frame count on ring %d",
-                  dxeCtxt->txCompletedFrames);
+                     "TX COMP INT Enabled, remain TX frame count on ring %d",
+                     dxeCtxt->txCompletedFrames);
          /*Kicking the DXE after the TX Complete interrupt was enabled - to avoid 
            the posibility of a race*/
          dxePsComplete(dxeCtxt, eWLAN_PAL_TRUE);
@@ -3454,8 +3469,10 @@
       if(WLANDXE_CH_STAT_INT_ERR_MASK & chStat)
       {
          HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_FATAL,
-                 "dxeTXEventHandler TX HI status=%x", chStat);
-         HDXE_ASSERT(0);
+                  "%11s : 0x%x Error Reported, Reload Driver",
+                  channelType[channelCb->channelType], chStat);
+         dxeCtxt->driverReloadInProcessing = eWLAN_PAL_TRUE;
+         wpalWlanReload();
       }
       else if(WLANDXE_CH_STAT_INT_DONE_MASK & chStat)
       {
@@ -3502,8 +3519,10 @@
       if(WLANDXE_CH_STAT_INT_ERR_MASK & chStat)
       {
          HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_FATAL,
-                 "dxeTXEventHandler TX LO status=%x", chStat);
-         HDXE_ASSERT(0);
+                  "%11s : 0x%x Error Reported, Reload Driver",
+                  channelType[channelCb->channelType], chStat);
+         dxeCtxt->driverReloadInProcessing = eWLAN_PAL_TRUE;
+         wpalWlanReload();
       }
       else if(WLANDXE_CH_STAT_INT_DONE_MASK & chStat)
       {
@@ -3552,8 +3571,10 @@
       if(WLANDXE_CH_STAT_INT_ERR_MASK & chStat)
       {
          HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_FATAL,
-                  "WLANDXE_CH_STAT_INT_ERR_MASK occurred");
-         HDXE_ASSERT(0);
+                  "%11s : 0x%x Error Reported, Reload Driver",
+                  channelType[channelCb->channelType], chStat);
+         dxeCtxt->driverReloadInProcessing = eWLAN_PAL_TRUE;
+         wpalWlanReload();
       }
       else if(WLANDXE_CH_STAT_INT_DONE_MASK & chStat)
       {
@@ -3580,9 +3601,12 @@
    {
       dxeCtxt->txIntEnable =  eWLAN_PAL_TRUE; 
       wpalEnableInterrupt(DXE_INTERRUPT_TX_COMPLE);
-      HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_WARN,
-               "TX COMP INT Enabled, remain TX frame count on ring %d",
-               dxeCtxt->txCompletedFrames);
+      if(0 != dxeCtxt->txCompletedFrames)
+      {
+         HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_WARN,
+                  "TX COMP INT Enabled, remain TX frame count on ring %d",
+                  dxeCtxt->txCompletedFrames);
+      }
    }
 
    /*Kicking the DXE after the TX Complete interrupt was enabled - to avoid