From: Grant Grundler <grundler@xxxxxxxxxx> Increase QLEN to avoid TX Queue overflow. iperf testing results in poor throughput and massive reporting of: dhd_bus_txdata: out of bus->txq !!! Also renamed QLEN/et al to reflect usage as TX queue parameters. Tested with "dhd_doflow = true". Signed-off-by: Venkat Rao <vrao@xxxxxxxxxxxx> Signed-off-by: Grant Grundler <grundler@xxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- drivers/staging/brcm80211/brcmfmac/dhd_sdio.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c index b74b3c6..f25e5b3 100644 --- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c @@ -57,9 +57,9 @@ #define DHDSDIO_MEM_DUMP_FNAME "mem_dump" #endif -#define QLEN 256 /* bulk rx and tx queue lengths */ -#define FCHI (QLEN - 10) -#define FCLOW (FCHI / 2) +#define TXQLEN 2048 /* bulk tx queue length */ +#define TXHI (TXQLEN - 256) /* turn on flow control above TXHI */ +#define TXLOW (TXHI - 256) /* turn off flow control below TXLOW */ #define PRIOMASK 7 #define TXRETRIES 2 /* # of retries for tx frames */ @@ -1119,7 +1119,7 @@ int dhd_bus_txdata(struct dhd_bus *bus, struct sk_buff *pkt) } dhd_os_sdunlock_txq(bus->dhd); - if ((pktq_len(&bus->txq) >= FCHI) && dhd_doflow) + if ((pktq_len(&bus->txq) >= TXHI) && dhd_doflow) dhd_txflowcontrol(bus->dhd, 0, ON); #ifdef DHD_DEBUG @@ -1218,7 +1218,7 @@ static uint dhdsdio_sendfromq(dhd_bus_t *bus, uint maxframes) /* Deflow-control stack if needed */ if (dhd_doflow && dhd->up && (dhd->busstate == DHD_BUS_DATA) && - dhd->txoff && (pktq_len(&bus->txq) < FCLOW)) + dhd->txoff && (pktq_len(&bus->txq) < TXLOW)) dhd_txflowcontrol(dhd, 0, OFF); return cnt; @@ -5343,7 +5343,7 @@ dhdsdio_probe_attach(struct dhd_bus *bus, void *sdh, void *regsva, u16 devid) /* Set core control so an SDIO reset does a backplane reset */ OR_REG(&bus->regs->corecontrol, CC_BPRESEN); - pktq_init(&bus->txq, (PRIOMASK + 1), QLEN); + pktq_init(&bus->txq, (PRIOMASK + 1), TXQLEN); /* Locate an appropriately-aligned portion of hdrbuf */ bus->rxhdr = (u8 *) roundup((unsigned long)&bus->hdrbuf[0], DHD_SDALIGN); -- 1.7.4.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
