From e2432b6787a15e0b3c255a017d16033ba30204c0 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Wed, 3 Apr 2013 12:40:38 +0200 Subject: [PATCH] brcmfmac: add optional bus callback definition for tx queue cleanup Add a callback to obtain packet queue from the bus-specific code used to cleanup packet buffers from firmware-signalling code. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Hante Meuleman Reviewed-by: Piotr Haber Reviewed-by: Franky (Zhenhui) Lin Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../net/wireless/brcm80211/brcmfmac/dhd_bus.h | 13 ++++++- .../wireless/brcm80211/brcmfmac/dhd_sdio.c | 10 ++++++ .../wireless/brcm80211/brcmfmac/fwsignal.c | 36 +++++++++++++++++-- 3 files changed, 56 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h index 883ef9063e8a..080395f49fa5 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h @@ -39,10 +39,12 @@ struct brcmf_bus_dcmd { * @txdata: send a data frame to the dongle (callee disposes skb). * @txctl: transmit a control request message to dongle. * @rxctl: receive a control response message from dongle. + * @gettxq: obtain a reference of bus transmit queue (optional). * * This structure provides an abstract interface towards the * bus specific driver. For control messages to common driver - * will assure there is only one active transaction. + * will assure there is only one active transaction. Unless + * indicated otherwise these callbacks are mandatory. */ struct brcmf_bus_ops { int (*init)(struct device *dev); @@ -50,6 +52,7 @@ struct brcmf_bus_ops { int (*txdata)(struct device *dev, struct sk_buff *skb); int (*txctl)(struct device *dev, unsigned char *msg, uint len); int (*rxctl)(struct device *dev, unsigned char *msg, uint len); + struct pktq * (*gettxq)(struct device *dev); }; /** @@ -115,6 +118,14 @@ int brcmf_bus_rxctl(struct brcmf_bus *bus, unsigned char *msg, uint len) return bus->ops->rxctl(bus->dev, msg, len); } +static inline +struct pktq *brcmf_bus_gettxq(struct brcmf_bus *bus) +{ + if (!bus->ops->gettxq) + return ERR_PTR(-ENOENT); + + return bus->ops->gettxq(bus->dev); +} /* * interface functions from common layer */ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index f5f04ba65e8c..a5354e731eaa 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -2293,6 +2293,15 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus) } } +static struct pktq *brcmf_sdbrcm_bus_gettxq(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; + struct brcmf_sdio *bus = sdiodev->bus; + + return &bus->txq; +} + static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt) { int ret = -EBADE; @@ -3834,6 +3843,7 @@ static struct brcmf_bus_ops brcmf_sdio_bus_ops = { .txdata = brcmf_sdbrcm_bus_txdata, .txctl = brcmf_sdbrcm_bus_txctl, .rxctl = brcmf_sdbrcm_bus_rxctl, + .gettxq = brcmf_sdbrcm_bus_gettxq, }; void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index a6443c667e33..2afd850f22c6 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -25,6 +25,7 @@ #include #include "dhd.h" #include "dhd_dbg.h" +#include "dhd_bus.h" #include "fwil.h" #include "fweh.h" #include "fwsignal.h" @@ -236,11 +237,11 @@ struct brcmf_skbuff_cb { #define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT 0 #define brcmf_skb_htod_tag_set_field(skb, field, value) \ - brcmu_maskset32(&(brcmf_skbcb(skb)->htod_tag), \ + brcmu_maskset32(&(brcmf_skbcb(skb)->htod), \ BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \ BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT, (value)) #define brcmf_skb_htod_tag_get_field(skb, field) \ - brcmu_maskget32(brcmf_skbcb(skb)->htod_tag, \ + brcmu_maskget32(brcmf_skbcb(skb)->htod, \ BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \ BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT) @@ -548,6 +549,36 @@ static void brcmf_fws_mac_desc_cleanup(struct brcmf_fws_mac_descriptor *entry, } } +static void brcmf_fws_bus_txq_cleanup(struct brcmf_fws_info *fws, + bool (*fn)(struct sk_buff *, void *), + int ifidx) +{ + struct brcmf_fws_hanger_item *hi; + struct pktq *txq; + struct sk_buff *skb; + int prec; + u32 hslot; + + brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx); + txq = brcmf_bus_gettxq(fws->drvr->bus_if); + if (IS_ERR(txq)) { + brcmf_dbg(TRACE, "no txq to clean up\n"); + return; + } + + for (prec = 0; prec < txq->num_prec; prec++) { + skb = brcmu_pktq_pdeq_match(txq, prec, fn, &ifidx); + while (skb) { + hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT); + hi = &fws->hanger.items[hslot]; + WARN_ON(skb != hi->pkt); + hi->state = BRCMF_FWS_HANGER_ITEM_STATE_FREE; + brcmu_pkt_buf_free_skb(skb); + skb = brcmu_pktq_pdeq_match(txq, prec, fn, &ifidx); + } + } +} + static bool brcmf_fws_ifidx_match(struct sk_buff *skb, void *arg) { u32 ifidx = brcmf_skb_if_flags_get_field(skb, INDEX); @@ -573,6 +604,7 @@ static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx) brcmf_fws_mac_desc_cleanup(&table[i], matchfn, ifidx); brcmf_fws_mac_desc_cleanup(&fws->other, matchfn, ifidx); + brcmf_fws_bus_txq_cleanup(fws, matchfn, ifidx); brcmf_fws_hanger_cleanup(&fws->hanger, matchfn, ifidx); } -- 2.30.2