Return-path: Received: from wolverine02.qualcomm.com ([199.106.114.251]:31610 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751642AbbAYIx0 (ORCPT ); Sun, 25 Jan 2015 03:53:26 -0500 From: Vladimir Kondratiev Cc: Dedy Lansky , linux-wireless@vger.kernel.org, wil6210@qca.qualcomm.com, Vladimir Kondratiev To: Kalle Valo Subject: [PATCH 02/10] wil6210: fix timing of netif_carrier_on indication Date: Sun, 25 Jan 2015 10:52:43 +0200 Message-Id: <1422175971-8075-3-git-send-email-qca_vkondrat@qca.qualcomm.com> (sfid-20150125_095334_551454_58C048EA) In-Reply-To: <1422175971-8075-1-git-send-email-qca_vkondrat@qca.qualcomm.com> References: <1422175971-8075-1-git-send-email-qca_vkondrat@qca.qualcomm.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Dedy Lansky netif_carrier_on indication was too late. In case Rx packet received before netif_carrier_on indication, upper layers could not send Tx packet back. The fix is to indicate netif_carrier_on earlier: for STA, indicate netif_carrier_on when association starts. for AP/PCP, indicate netif_carrier_on upon starting AP/PCP. Signed-off-by: Dedy Lansky Signed-off-by: Vladimir Kondratiev --- drivers/net/wireless/ath/wil6210/cfg80211.c | 8 +++++--- drivers/net/wireless/ath/wil6210/main.c | 30 ++++++----------------------- drivers/net/wireless/ath/wil6210/netdev.c | 4 +--- drivers/net/wireless/ath/wil6210/wil6210.h | 2 -- drivers/net/wireless/ath/wil6210/wmi.c | 2 -- 5 files changed, 12 insertions(+), 34 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index bd013fd..553aa2e 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -454,6 +454,7 @@ static int wil_cfg80211_connect(struct wiphy *wiphy, rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn)); if (rc == 0) { + netif_carrier_on(ndev); /* Connect can take lots of time */ mod_timer(&wil->connect_timer, jiffies + msecs_to_jiffies(2000)); @@ -757,12 +758,12 @@ static int wil_cfg80211_start_ap(struct wiphy *wiphy, wil->secure_pcp = info->privacy; + netif_carrier_on(ndev); + rc = wmi_pcp_start(wil, info->beacon_interval, wmi_nettype, channel->hw_value); if (rc) - goto out; - - netif_carrier_on(ndev); + netif_carrier_off(ndev); out: mutex_unlock(&wil->mutex); @@ -777,6 +778,7 @@ static int wil_cfg80211_stop_ap(struct wiphy *wiphy, wil_dbg_misc(wil, "%s()\n", __func__); + netif_carrier_off(ndev); wil_set_recovery_state(wil, fw_recovery_idle); mutex_lock(&wil->mutex); diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index 62dc241..00c9b0f 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -248,7 +248,9 @@ static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, switch (wdev->iftype) { case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: - wil_link_off(wil); + netif_tx_stop_all_queues(ndev); + netif_carrier_off(ndev); + if (test_bit(wil_status_fwconnected, wil->status)) { clear_bit(wil_status_fwconnected, wil->status); cfg80211_disconnected(ndev, reason_code, @@ -395,6 +397,8 @@ static void wil_connect_worker(struct work_struct *work) int rc; struct wil6210_priv *wil = container_of(work, struct wil6210_priv, connect_worker); + struct net_device *ndev = wil_to_ndev(wil); + int cid = wil->pending_connect_cid; int ringid = wil_find_free_vring(wil); @@ -409,7 +413,7 @@ static void wil_connect_worker(struct work_struct *work) wil->pending_connect_cid = -1; if (rc == 0) { wil->sta[cid].status = wil_sta_connected; - wil_link_on(wil); + netif_tx_wake_all_queues(ndev); } else { wil->sta[cid].status = wil_sta_unused; } @@ -741,28 +745,6 @@ void wil_fw_error_recovery(struct wil6210_priv *wil) schedule_work(&wil->fw_error_worker); } -void wil_link_on(struct wil6210_priv *wil) -{ - struct net_device *ndev = wil_to_ndev(wil); - - wil_dbg_misc(wil, "%s()\n", __func__); - - netif_carrier_on(ndev); - wil_dbg_misc(wil, "netif_tx_wake : link on\n"); - netif_tx_wake_all_queues(ndev); -} - -void wil_link_off(struct wil6210_priv *wil) -{ - struct net_device *ndev = wil_to_ndev(wil); - - wil_dbg_misc(wil, "%s()\n", __func__); - - netif_tx_stop_all_queues(ndev); - wil_dbg_misc(wil, "netif_tx_stop : link off\n"); - netif_carrier_off(ndev); -} - int __wil_up(struct wil6210_priv *wil) { struct net_device *ndev = wil_to_ndev(wil); diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c index e81703c..f1f9e51 100644 --- a/drivers/net/wireless/ath/wil6210/netdev.c +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -174,7 +174,7 @@ void *wil_if_alloc(struct device *dev, void __iomem *csr) netif_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx, WIL6210_NAPI_BUDGET); - wil_link_off(wil); + netif_tx_stop_all_queues(ndev); return wil; @@ -217,8 +217,6 @@ int wil_if_add(struct wil6210_priv *wil) return rc; } - wil_link_off(wil); - return 0; } diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index da3fe78..b4404e7 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -649,8 +649,6 @@ void wil_priv_deinit(struct wil6210_priv *wil); int wil_reset(struct wil6210_priv *wil); void wil_fw_error_recovery(struct wil6210_priv *wil); void wil_set_recovery_state(struct wil6210_priv *wil, int state); -void wil_link_on(struct wil6210_priv *wil); -void wil_link_off(struct wil6210_priv *wil); int wil_up(struct wil6210_priv *wil); int __wil_up(struct wil6210_priv *wil); int wil_down(struct wil6210_priv *wil); diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index 097d78b..0f3e433 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -566,7 +566,6 @@ static void wil_addba_tx_cid(struct wil6210_priv *wil, u8 cid, u16 wsize) static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len) { - struct net_device *ndev = wil_to_ndev(wil); struct wmi_data_port_open_event *evt = d; u8 cid = evt->cid; @@ -580,7 +579,6 @@ static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len) wil->sta[cid].data_port_open = true; if (agg_wsize >= 0) wil_addba_tx_cid(wil, cid, agg_wsize); - netif_carrier_on(ndev); } static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len) -- 2.1.0