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brcmfmac: restore stopping netdev queue when bus clogs up 

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 9cd18359d3 ("brcmfmac:
Make FWS queueing configurable.") this was broken. With this patch
the behaviour is restored.

Cc: stable@vger.kernel.org # v4.5, v4.6, v4.7
Fixes: 9cd18359d3 ("brcmfmac: Make FWS queueing configurable.")
Tested-by: Per Förlin <per.forlin@gmail.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Arend Van Spriel 2016-07-15 12:16:12 +02:00 committed by Kalle Valo
parent 4028a514ea
commit 82bc9ab6a8
1 changed files with 17 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
View File

@ -2469,10 +2469,22 @@ void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
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++;
}
}