Return-path: Received: from mail-oa0-f51.google.com ([209.85.219.51]:36864 "EHLO mail-oa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751845AbaBNVcj (ORCPT ); Fri, 14 Feb 2014 16:32:39 -0500 Message-ID: <52FE8B74.8020408@lwfinger.net> (sfid-20140214_223244_096026_03D126CD) Date: Fri, 14 Feb 2014 15:32:36 -0600 From: Larry Finger MIME-Version: 1.0 To: Peter Wu , Chaoming_Li CC: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] rtlwifi: properly apply filter flags References: <1392401026-18417-1-git-send-email-lekensteyn@gmail.com> <1392401026-18417-3-git-send-email-lekensteyn@gmail.com> In-Reply-To: <1392401026-18417-3-git-send-email-lekensteyn@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 02/14/2014 12:03 PM, Peter Wu wrote: > commit 0baa0fd76f3f5a134461d6cf30294f6bb1bb824c > ("rtlwifi: Convert core routines for addition of rtl8192se and > rtl8192de") removed setting HW_VAR_RCR, HW_VAR_MGT_FILTER and > HW_VAR_CTRL_FILTER. The last two are probably done because some hardware > does not support them. The first is probably a mistake. This patch adds > the missing set_hw_reg call. > > For PCI support, rx_conf is not touched directly. Instead, get_hw_reg is > used to abstract between receive_config (for PCI) and rx_conf (for USB). > > This was tested on a 10ec:8176 Realtek RTL8188CE (according to the > label on the mini-PCIe card). Before this patch, `iw wlan0 set monitor > otherbss` did not capture frames from other BSS's. After this patch, it > does print packets. > > Tested-by: Peter Wu > Signed-off-by: Peter Wu > --- Acked-by: Larry Finger Thanks, Larry > drivers/net/wireless/rtlwifi/core.c | 52 +++++++++++++++++++++---------------- > 1 file changed, 30 insertions(+), 22 deletions(-) > > diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c > index 2d337a0..6df4df0 100644 > --- a/drivers/net/wireless/rtlwifi/core.c > +++ b/drivers/net/wireless/rtlwifi/core.c > @@ -475,20 +475,40 @@ static void rtl_op_configure_filter(struct ieee80211_hw *hw, > { > struct rtl_priv *rtlpriv = rtl_priv(hw); > struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); > + u32 rx_conf; > > *new_flags &= RTL_SUPPORTED_FILTERS; > if (!changed_flags) > return; > > + /* if ssid not set to hw don't check bssid > + * here just used for linked scanning, & linked > + * and nolink check bssid is set in set network_type */ > + if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) && > + (mac->link_state >= MAC80211_LINKED)) { > + if (mac->opmode != NL80211_IFTYPE_AP && > + mac->opmode != NL80211_IFTYPE_MESH_POINT) { > + if (*new_flags & FIF_BCN_PRBRESP_PROMISC) { > + rtlpriv->cfg->ops->set_chk_bssid(hw, false); > + } else { > + rtlpriv->cfg->ops->set_chk_bssid(hw, true); > + } > + } > + } > + > + /* must be called after set_chk_bssid since that function modifies the > + * RCR register too. */ > + rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *)(&rx_conf)); > + > /*TODO: we disable broadcase now, so enable here */ > if (changed_flags & FIF_ALLMULTI) { > if (*new_flags & FIF_ALLMULTI) { > - mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] | > + rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] | > rtlpriv->cfg->maps[MAC_RCR_AB]; > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Enable receive multicast frame\n"); > } else { > - mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] | > + rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] | > rtlpriv->cfg->maps[MAC_RCR_AB]); > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Disable receive multicast frame\n"); > @@ -497,39 +517,25 @@ static void rtl_op_configure_filter(struct ieee80211_hw *hw, > > if (changed_flags & FIF_FCSFAIL) { > if (*new_flags & FIF_FCSFAIL) { > - mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32]; > + rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32]; > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Enable receive FCS error frame\n"); > } else { > - mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32]; > + rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32]; > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Disable receive FCS error frame\n"); > } > } > > - /* if ssid not set to hw don't check bssid > - * here just used for linked scanning, & linked > - * and nolink check bssid is set in set network_type */ > - if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) && > - (mac->link_state >= MAC80211_LINKED)) { > - if (mac->opmode != NL80211_IFTYPE_AP && > - mac->opmode != NL80211_IFTYPE_MESH_POINT) { > - if (*new_flags & FIF_BCN_PRBRESP_PROMISC) { > - rtlpriv->cfg->ops->set_chk_bssid(hw, false); > - } else { > - rtlpriv->cfg->ops->set_chk_bssid(hw, true); > - } > - } > - } > > if (changed_flags & FIF_CONTROL) { > if (*new_flags & FIF_CONTROL) { > - mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF]; > + rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF]; > > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Enable receive control frame\n"); > } else { > - mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF]; > + rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF]; > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Disable receive control frame\n"); > } > @@ -537,15 +543,17 @@ static void rtl_op_configure_filter(struct ieee80211_hw *hw, > > if (changed_flags & FIF_OTHER_BSS) { > if (*new_flags & FIF_OTHER_BSS) { > - mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP]; > + rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP]; > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Enable receive other BSS's frame\n"); > } else { > - mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP]; > + rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP]; > RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, > "Disable receive other BSS's frame\n"); > } > } > + > + rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, (u8 *)(&rx_conf)); > } > static int rtl_op_sta_add(struct ieee80211_hw *hw, > struct ieee80211_vif *vif, >