F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

wifi: When starting UL TXOP on a link, EMLSR client gets unprotected on other links

Browse Source 
Helps handle cross-link collisions
This commit is contained in:
Stefano Avallone
2024-06-11 11:57:12 +02:00
parent d9ec9acd65
commit b7ed40cbcf
1 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/wifi/model/eht/eht-frame-exchange-manager.cc
View File

@@ -1316,6 +1316,19 @@ EhtFrameExchangeManager::CheckEmlsrClientStartingTxop(const WifiMacHeader& hdr,
m_mac->BlockUnicastTxOnLinks(WifiQueueBlockedReason::USING_OTHER_EMLSR_LINK,
*mldAddress,
{linkId});
// the AP MLD may have sent an ICF to the EMLSR client on this link while the EMLSR
// client was starting a TXOP on another link. To be safe, besides blocking
// transmissions, remove the EMLSR client from the protected stations on this link
auto linkAddr =
m_mac->GetWifiRemoteStationManager(linkId)->GetAffiliatedStaAddress(*mldAddress);
NS_ASSERT(linkAddr.has_value());
auto ehtFem =
StaticCast<EhtFrameExchangeManager>(m_mac->GetFrameExchangeManager(linkId));
NS_LOG_DEBUG("Remove " << *linkAddr << " from protected STAs");
ehtFem->m_protectedStas.erase(*linkAddr);
ehtFem->m_sentRtsTo.erase(*linkAddr);
ehtFem->m_sentFrameTo.erase(*linkAddr);
}
}