From fe353b24c385f219aca1e19767119017618deca7 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 6 Jun 2013 13:17:49 +0200 Subject: [PATCH] brcmfmac: rework credit pickup to assure consistent handling Reworked brcmf_skb_pick_up_credit() so it can be used for both fcmode flavours in the same way. Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../wireless/brcm80211/brcmfmac/fwsignal.c | 30 ++++++++----------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index c1930ef5c55f..a7a02473e7e9 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -1040,24 +1040,21 @@ static void brcmf_fws_schedule_deq(struct brcmf_fws_info *fws) queue_work(fws->fws_wq, &fws->fws_dequeue_work); } -static void brcmf_skb_pick_up_credit(struct brcmf_fws_info *fws, int fifo, +static void brcmf_fws_skb_pickup_credit(struct brcmf_fws_info *fws, int fifo, struct sk_buff *p) { struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(p)->mac; - if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) { - if (fws->fcmode != BRCMF_FWS_FCMODE_IMPLIED_CREDIT) - return; + if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) brcmf_fws_return_credits(fws, fifo, 1); - } else { + else if (!brcmf_skb_if_flags_get_field(p, REQUESTED)) /* * if this packet did not count against FIFO credit, it * must have taken a requested_credit from the destination * entry (for pspoll etc.) */ - if (!brcmf_skb_if_flags_get_field(p, REQUESTED)) - entry->requested_credit++; - } + entry->requested_credit++; + brcmf_fws_schedule_deq(fws); } @@ -1272,7 +1269,9 @@ brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot, /* pick up the implicit credit from this packet */ fifo = brcmf_skb_htod_tag_get_field(skb, FIFO); - brcmf_skb_pick_up_credit(fws, fifo, skb); + if (fws->fcmode == BRCMF_FWS_FCMODE_IMPLIED_CREDIT || + !(brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)) + brcmf_fws_skb_pickup_credit(fws, fifo, skb); if (!remove_from_hanger) ret = brcmf_fws_txstatus_suppressed(fws, fifo, skb, genbit); @@ -1845,7 +1844,7 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb) } else { if (brcmf_fws_commit_skb(fws, fifo, skb)) if (!multicast) - brcmf_skb_pick_up_credit(fws, fifo, skb); + brcmf_fws_skb_pickup_credit(fws, fifo, skb); } brcmf_fws_unlock(drvr, flags); return 0; @@ -2053,18 +2052,15 @@ bool brcmf_fws_fc_active(struct brcmf_fws_info *fws) void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb) { ulong flags; + int fifo; brcmf_fws_lock(fws->drvr, flags); brcmf_fws_txstatus_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED, brcmf_skb_htod_tag_get_field(skb, HSLOT), 0); /* the packet never reached firmware so reclaim credit */ - if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT && - brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) { - brcmf_fws_return_credits(fws, - brcmf_skb_htod_tag_get_field(skb, - FIFO), - 1); - brcmf_fws_schedule_deq(fws); + if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) { + fifo = brcmf_skb_htod_tag_get_field(skb, FIFO); + brcmf_fws_skb_pickup_credit(fws, fifo, skb); } brcmf_fws_unlock(fws->drvr, flags); } -- 2.39.5