From 9cd18359d31edd576b0aead131adff8b5f555425 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Mon, 12 May 2014 10:47:30 +0200 Subject: [PATCH] brcmfmac: Make FWS queueing configurable. FWS is always queuing frames and using a worker for de-queueing, this is not always efficient for all bus layer. For example SDIO has an internal queue and worker making the queueing of FWS unnecessary. Make it possible to bypass the worker if fws mode is none using a bus interface configuration. For USB bus layer this configuration is set true to have fws provide queueing regardless the fws mode. Reviewed-by: Arend Van Spriel Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Daniel (Deognyoun) Kim Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h | 1 + .../net/wireless/brcm80211/brcmfmac/fwsignal.c | 15 +++++++++++++++ drivers/net/wireless/brcm80211/brcmfmac/usb.c | 1 + 3 files changed, 17 insertions(+) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h index c4535616064e..c5dcd82e884b 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h @@ -99,6 +99,7 @@ struct brcmf_bus { unsigned long tx_realloc; u32 chip; u32 chiprev; + bool always_use_fws_queue; struct brcmf_bus_ops *ops; }; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index b58a97aa659a..699908de314a 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -476,6 +476,7 @@ struct brcmf_fws_info { bool bus_flow_blocked; bool creditmap_received; u8 mode; + bool avoid_queueing; }; /* @@ -1872,6 +1873,13 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb) drvr->tx_multicast += !!multicast; + if (fws->avoid_queueing) { + rc = brcmf_proto_txdata(drvr, ifp->ifidx, 0, skb); + if (rc < 0) + brcmf_txfinalize(drvr, skb, ifp->ifidx, false); + return rc; + } + /* set control buffer information */ skcb->if_flags = 0; skcb->state = BRCMF_FWS_SKBSTATE_NEW; @@ -2030,6 +2038,13 @@ int brcmf_fws_init(struct brcmf_pub *drvr) fws->drvr = drvr; fws->fcmode = fcmode; + if ((drvr->bus_if->always_use_fws_queue == false) && + (fcmode == BRCMF_FWS_FCMODE_NONE)) { + fws->avoid_queueing = true; + brcmf_dbg(INFO, "FWS queueing will be avoided\n"); + return 0; + } + fws->fws_wq = create_singlethread_workqueue("brcmf_fws_wq"); if (fws->fws_wq == NULL) { brcmf_err("workqueue creation failed\n"); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index 24f65cd53859..3ce0e7cfd027 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -1254,6 +1254,7 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) bus->chip = bus_pub->devid; bus->chiprev = bus_pub->chiprev; bus->proto_type = BRCMF_PROTO_BCDC; + bus->always_use_fws_queue = true; /* Attach to the common driver interface */ ret = brcmf_attach(dev); -- GitLab