Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:2158 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758959Ab3E2QjS (ORCPT ); Wed, 29 May 2013 12:39:18 -0400 From: "Arend van Spriel" To: "John W. Linville" cc: linux-wireless , "Arend van Spriel" Subject: [PATCH for 3.10 04/16] brcmfmac: rework credit pickup to assure consistent handling Date: Wed, 29 May 2013 18:38:54 +0200 Message-ID: <1369845546-31950-5-git-send-email-arend@broadcom.com> (sfid-20130529_183924_008320_7F2D365A) In-Reply-To: <1369845546-31950-1-git-send-email-arend@broadcom.com> References: <1369845546-31950-1-git-send-email-arend@broadcom.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: 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 --- drivers/net/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 7b37aac..ff8c2f0 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); } -- 1.7.10.4