From patchwork Fri Apr 5 08:57:41 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arend van Spriel X-Patchwork-Id: 2397221 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 59EC1DF2E5 for ; Fri, 5 Apr 2013 08:58:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161156Ab3DEI6Q (ORCPT ); Fri, 5 Apr 2013 04:58:16 -0400 Received: from mms1.broadcom.com ([216.31.210.17]:1567 "EHLO mms1.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1162003Ab3DEI6F (ORCPT ); Fri, 5 Apr 2013 04:58:05 -0400 Received: from [10.9.208.57] by mms1.broadcom.com with ESMTP (Broadcom SMTP Relay (Email Firewall v6.5)); Fri, 05 Apr 2013 01:55:10 -0700 X-Server-Uuid: 06151B78-6688-425E-9DE2-57CB27892261 Received: from IRVEXCHSMTP1.corp.ad.broadcom.com (10.9.207.51) by IRVEXCHCAS08.corp.ad.broadcom.com (10.9.208.57) with Microsoft SMTP Server (TLS) id 14.1.438.0; Fri, 5 Apr 2013 01:57:59 -0700 Received: from mail-sj1-12.sj.broadcom.com (10.10.10.20) by IRVEXCHSMTP1.corp.ad.broadcom.com (10.9.207.51) with Microsoft SMTP Server id 14.1.438.0; Fri, 5 Apr 2013 01:57:59 -0700 Received: from arend-ubuntu-1 (unknown [10.176.68.149]) by mail-sj1-12.sj.broadcom.com (Postfix) with ESMTP id 1AFEC207CE; Fri, 5 Apr 2013 01:57:57 -0700 (PDT) Received: from arend by arend-ubuntu-1 with local (Exim 4.80) ( envelope-from ) id 1UO2T7-00017e-1o; Fri, 05 Apr 2013 10:57:57 +0200 From: "Arend van Spriel" To: "John W. Linville" cc: linux-wireless , "Arend van Spriel" Subject: [PATCH 03/16] brcmfmac: handle firmware signals requesting for packets Date: Fri, 5 Apr 2013 10:57:41 +0200 Message-ID: <1365152274-4252-4-git-send-email-arend@broadcom.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1365152274-4252-1-git-send-email-arend@broadcom.com> References: <1365152274-4252-1-git-send-email-arend@broadcom.com> MIME-Version: 1.0 X-WSS-ID: 7D404EE42ZC3573448-01-01 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org The firmware can request the host driver for packets, by sending either the MAC_REQUEST_CREDIT or the MAC_REQUEST_PACKET primitive. This patch adds handling of these primitives. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Hante Meuleman Signed-off-by: Arend van Spriel --- drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h | 2 ++ drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c | 29 ++++++++++++++++++-- 2 files changed, 29 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h index e105889..d259ae5 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h @@ -146,6 +146,8 @@ struct brcmf_fws_stats { u32 mac_update_failed; u32 mac_ps_update_failed; u32 if_update_failed; + u32 packet_request_failed; + u32 credit_request_failed; u32 rollback_success; u32 rollback_failed; u32 delayq_full_error; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index 57cbfb6..619fff3 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -959,6 +959,29 @@ fail: return ret; } +static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type, + u8 *data) +{ + struct brcmf_fws_mac_descriptor *entry; + + entry = &fws->desc.nodes[data[1] & 0x1F]; + if (!entry->occupied) { + if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT) + fws->stats.credit_request_failed++; + else + fws->stats.packet_request_failed++; + return -ESRCH; + } + + if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT) + entry->requested_credit = data[0]; + else + entry->requested_packet = data[0]; + + entry->ac_bitmap = data[2]; + return 0; +} + static void brcmf_fws_return_credits(struct brcmf_fws_info *fws, u8 fifo, u8 credits) { @@ -1366,8 +1389,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, break; switch (type) { - case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT: - case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET: case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS: case BRCMF_FWS_TYPE_COMP_TXSTATUS: break; @@ -1383,6 +1404,10 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, case BRCMF_FWS_TYPE_INTERFACE_CLOSE: brcmf_fws_interface_state_indicate(fws, type, data); break; + case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT: + case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET: + brcmf_fws_request_indicate(fws, type, data); + break; case BRCMF_FWS_TYPE_TXSTATUS: brcmf_fws_txstatus_indicate(fws, data); break;