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wifi: Make sure that we do not start a transmission on a blocked EMLSR link

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This commit is contained in:
Stefano Avallone
2023-07-04 20:12:43 +02:00
committed by Stefano Avallone
parent c9dd0e4d62
commit 74c9b84e3e
1 changed files with 13 additions and 0 deletions
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13
src/wifi/model/eht/eht-frame-exchange-manager.cc
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@@ -143,6 +143,19 @@ EhtFrameExchangeManager::StartTransmission(Ptr<Txop> edca, uint16_t allowedWidth
{
NS_LOG_FUNCTION(this << edca << allowedWidth);
if (m_staMac && m_staMac->IsEmlsrLink(m_linkId))
{
auto apAddress = GetWifiRemoteStationManager()->GetMldAddress(m_bssid);
NS_ASSERT_MSG(apAddress, "MLD address not found for BSSID " << m_bssid);
// when EMLSR links are blocked, all TIDs are blocked (we test TID 0 here)
WifiContainerQueueId queueId(WIFI_QOSDATA_QUEUE, WIFI_UNICAST, *apAddress, 0);
auto mask = m_staMac->GetMacQueueScheduler()->GetQueueLinkMask(AC_BE, queueId, m_linkId);
// Cannot start a transmission on a link blocked because another EMLSR link is being used
NS_ASSERT_MSG(mask && !mask->test(static_cast<std::size_t>(
WifiQueueBlockedReason::USING_OTHER_EMLSR_LINK)),
"StartTransmission called while EMLSR link is being used");
}
auto started = HeFrameExchangeManager::StartTransmission(edca, allowedWidth);
if (started && m_staMac && m_staMac->IsEmlsrLink(m_linkId))