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brcm80211: fmac: move tx flow ctrl flag to bus layer 

txoff is the flow control flag for transmit used in sdio layer.
Move it to bus layer data structure brcmf_sdio. Also flag
management code is moved out of brcmf_txflowcontrol(). This is
part of the fullmac bus interface refactoring.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
hifive-unleashed-5.1
Franky Lin 2011-12-16 18:37:08 -08:00 committed by John W. Linville
parent 9c1a043ae6
commit c8bf34849f
3 changed files with 8 additions and 4 deletions
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1
drivers/net/wireless/brcm80211/brcmfmac/dhd.h
View File

@ -597,7 +597,6 @@ struct brcmf_pub {
struct device *dev; /* fullmac dongle device pointer */
/* Internal brcmf items */
bool txoff; /* Transmit flow-controlled */
uint hdrlen; /* Total BRCMF header length (proto + bus) */
uint rxsz; /* Rx buffer size bus module should use */
u8 wme_dp; /* wme discard priority */

1
drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
View File

@ -356,7 +356,6 @@ void brcmf_txflowcontrol(struct device *dev, int ifidx, bool state)
brcmf_dbg(TRACE, "Enter\n");
drvr->txoff = state;
ndev = drvr->iflist[ifidx]->ndev;
if (state == ON)
netif_stop_queue(ndev);

10
drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
View File

@ -575,6 +575,8 @@ struct brcmf_sdio {
const struct firmware *firmware;
u32 fw_ptr;
bool txoff; /* Transmit flow-controlled */
};
/* clkstate */
@ -2297,8 +2299,10 @@ static uint brcmf_sdbrcm_sendfromq(struct brcmf_sdio *bus, uint maxframes)
/* Deflow-control stack if needed */
if (drvr->bus_if->drvr_up &&
(drvr->bus_if->state == BRCMF_BUS_DATA) &&
drvr->txoff && (pktq_len(&bus->txq) < TXLOW))
bus->txoff && (pktq_len(&bus->txq) < TXLOW)) {
bus->txoff = OFF;
brcmf_txflowcontrol(bus->sdiodev->dev, 0, OFF);
}
return cnt;
}
@ -2611,8 +2615,10 @@ int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
}
spin_unlock_bh(&bus->txqlock);
if (pktq_len(&bus->txq) >= TXHI)
if (pktq_len(&bus->txq) >= TXHI) {
bus->txoff = ON;
brcmf_txflowcontrol(bus->sdiodev->dev, 0, ON);
}
#ifdef BCMDBG
if (pktq_plen(&bus->txq, prec) > qcount[prec])