Author: rmilecki
Date: 2016-07-19 23:27:45 +0200 (Tue, 19 Jul 2016)
New Revision: 49402
Added:
branches/chaos_calmer/package/kernel/mac80211/patches/351-0027-brcmfmac-restore-stopping-netdev-queue-when-bus-clog.patch
Log:
mac80211: brcmfmac: fix stopping netdev queue when bus clogs up
Signed-off-by: Rafa{U+0142} Mi{U+0142}ecki <[email protected]>
Added:
branches/chaos_calmer/package/kernel/mac80211/patches/351-0027-brcmfmac-restore-stopping-netdev-queue-when-bus-clog.patch
===================================================================
---
branches/chaos_calmer/package/kernel/mac80211/patches/351-0027-brcmfmac-restore-stopping-netdev-queue-when-bus-clog.patch
(rev 0)
+++
branches/chaos_calmer/package/kernel/mac80211/patches/351-0027-brcmfmac-restore-stopping-netdev-queue-when-bus-clog.patch
2016-07-19 21:27:45 UTC (rev 49402)
@@ -0,0 +1,53 @@
+From: Arend Van Spriel <[email protected]>
+Date: Fri, 15 Jul 2016 12:16:12 +0200
+Subject: [PATCH] brcmfmac: restore stopping netdev queue when bus clogs up
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When the host-interface bus has hard time handling transmit packets
+it informs higher layer about this and it would stop the netdev
+queue when needed. However, since commit 9cd18359d31e ("brcmfmac:
+Make FWS queueing configurable.") this was broken. With this patch
+the behaviour is restored.
+
+Cc: [email protected] # v4.5, v4.6, v4.7
+Fixes: 9cd18359d31e ("brcmfmac: Make FWS queueing configurable.")
+Tested-by: Per Förlin <[email protected]>
+Reviewed-by: Hante Meuleman <[email protected]>
+Reviewed-by: Pieter-Paul Giesberts <[email protected]>
+Reviewed-by: Franky Lin <[email protected]>
+Signed-off-by: Arend van Spriel <[email protected]>
+Signed-off-by: Kalle Valo <[email protected]>
+---
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
+@@ -2260,10 +2260,22 @@ void brcmf_fws_bustxfail(struct brcmf_fw
+ void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked)
+ {
+ struct brcmf_fws_info *fws = drvr->fws;
++ struct brcmf_if *ifp;
++ int i;
+
+- fws->bus_flow_blocked = flow_blocked;
+- if (!flow_blocked)
+- brcmf_fws_schedule_deq(fws);
+- else
+- fws->stats.bus_flow_block++;
++ if (fws->avoid_queueing) {
++ for (i = 0; i < BRCMF_MAX_IFS; i++) {
++ ifp = drvr->iflist[i];
++ if (!ifp || !ifp->ndev)
++ continue;
++ brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_FLOW,
++ flow_blocked);
++ }
++ } else {
++ fws->bus_flow_blocked = flow_blocked;
++ if (!flow_blocked)
++ brcmf_fws_schedule_deq(fws);
++ else
++ fws->stats.bus_flow_block++;
++ }
+ }
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