commit 8a7e286c20c6d7a3c978a27ab8669dc25bed4cd5
author Karthick S <skarthic@qti.qualcomm.com> Mon Sep 14 09:13:37 2015 +0530
committer Satyanarayana Dash <sadash@codeaurora.org> Tue Sep 15 18:51:28 2015 +0530
tree 0f897bf7dc0139ba72f16a7007e7d9cb8343ba5a
parent b55a8575de5fb6c2d6ebcc4067d1298cbea89d42

wlan: Kick DXE when TX ring is about to fill

The host needs to kick dxe through smsm notification when the target is in
BMPS mode to enable TX channels. Currently it is done only when both TX
rings are empty. Updated this to send smsm notification when the ring is
about to full also.

Change-Id: I1fc269f03fe55bd81e4287909d982e3d21b52586
CRs-Fixed: 906319

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 b9ad134..4bacd95 100644
--- a/CORE/DXE/src/wlan_qct_dxe.c
+++ b/CORE/DXE/src/wlan_qct_dxe.c
@@ -3233,7 +3233,7 @@
    void                       *sourcePhysicalAddress = NULL;
    wpt_uint32                  xferSize = 0;
    wpt_iterator                iterator;
-   wpt_uint32                  isEmpty = 0;
+   wpt_uint32                  KickDxe = 0;
 
    HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_INFO_LOW,
             "%s Enter", __func__);
@@ -3242,9 +3242,13 @@
    if((0 == tempDxeCtrlBlk->dxeChannel[WDTS_CHANNEL_TX_LOW_PRI].numRsvdDesc) &&
       (0 == tempDxeCtrlBlk->dxeChannel[WDTS_CHANNEL_TX_HIGH_PRI].numRsvdDesc))
    {
-      isEmpty = 1;
+       KickDxe = 1;
    }
 
+   /* Kick DXE when the ring is about to fill */
+   if (WLANDXE_TX_LOW_RES_THRESHOLD >= channelEntry->numFreeDesc)
+       KickDxe = 1;
+
    channelEntry->numFragmentCurrentChain = 0;
    currentCtrlBlk = channelEntry->headCtrlBlk;
 
@@ -3365,7 +3369,7 @@
    {
       /* Update channel head as next avaliable linked slot */
       channelEntry->headCtrlBlk = currentCtrlBlk;
-      if(isEmpty)
+      if(KickDxe)
       {
          tempDxeCtrlBlk->ringNotEmpty = eWLAN_PAL_TRUE;
          HDXE_MSG(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_INFO_LOW,