Return-path: Received: from mail2.candelatech.com ([208.74.158.173]:46058 "EHLO mail2.candelatech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729814AbeGQBS6 (ORCPT ); Mon, 16 Jul 2018 21:18:58 -0400 From: greearb@candelatech.com To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Ben Greear Subject: [RFC] ath10k: Support configuring firmware tx-retry counter. Date: Mon, 16 Jul 2018 17:48:59 -0700 Message-Id: <1531788539-17937-1-git-send-email-greearb@candelatech.com> (sfid-20180717_024908_432943_801217B0) Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ben Greear Firmware already supports this, so just enable the path to configure the vdev parameter. One potential issue: The firmware (10.1 at least) defaults to 2, and the mac80211 stack defaults to 4. So applying this patch would change the firmware behaviour regardless of user settings. I verified this tweaked the proper firmware setting when I ran this command: iw phy wiphy0 set retry short 2 long 2 Signed-off-by: Ben Greear --- drivers/net/wireless/ath/ath10k/mac.c | 31 +++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath10k/wmi.c | 2 +- drivers/net/wireless/ath/ath10k/wmi.h | 2 ++ 3 files changed, 34 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index c90c8bb..b458e5b 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -2027,6 +2027,16 @@ static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif) return 0; } +static int ath10k_mac_vif_config_retry_limit(struct ath10k_vif *arvif, int limit) +{ + struct ath10k *ar = arvif->ar; + int vdev_param = ar->wmi.vdev_param->rc_num_retries; + + lockdep_assert_held(&arvif->ar->conf_mutex); + + return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, limit); +} + static int ath10k_mac_vif_disable_keepalive(struct ath10k_vif *arvif) { struct ath10k *ar = arvif->ar; @@ -5516,6 +5526,24 @@ static int ath10k_config_ps(struct ath10k *ar) return ret; } +static int ath10k_config_retry_limit(struct ath10k *ar, int limit) +{ + struct ath10k_vif *arvif; + int ret = 0; + + lockdep_assert_held(&ar->conf_mutex); + + list_for_each_entry(arvif, &ar->arvifs, list) { + ret = ath10k_mac_vif_config_retry_limit(arvif, limit); + if (ret) { + ath10k_warn(ar, "failed to setup retry-limit: %d\n", ret); + break; + } + } + + return ret; +} + static int ath10k_mac_txpower_setup(struct ath10k *ar, int txpower) { int ret; @@ -5592,6 +5620,9 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed) ath10k_warn(ar, "failed to recalc monitor: %d\n", ret); } + if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) + ret = ath10k_config_retry_limit(ar, conf->long_frame_max_tx_count); + mutex_unlock(&ar->conf_mutex); return ret; } diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 6aaa439..816883d 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -874,7 +874,7 @@ static struct wmi_vdev_param_map wmi_10x_vdev_param_map = { .tx_encap_type = WMI_VDEV_PARAM_UNSUPPORTED, .ap_detect_out_of_sync_sleeping_sta_time_secs = WMI_10X_VDEV_PARAM_AP_DETECT_OUT_OF_SYNC_SLEEPING_STA_TIME_SECS, - .rc_num_retries = WMI_VDEV_PARAM_UNSUPPORTED, + .rc_num_retries = WMI_10X_VDEV_PARAM_RC_NUM_RETRIES, .cabq_maxdur = WMI_VDEV_PARAM_UNSUPPORTED, .mfptest_set = WMI_VDEV_PARAM_UNSUPPORTED, .rts_fixed_rate = WMI_VDEV_PARAM_UNSUPPORTED, diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h index 95ff280..b01778e 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.h +++ b/drivers/net/wireless/ath/ath10k/wmi.h @@ -5369,6 +5369,8 @@ enum wmi_10x_vdev_param { WMI_10X_VDEV_PARAM_MCAST2UCAST_SET, /* Enable/Disable RTS-CTS */ WMI_10X_VDEV_PARAM_ENABLE_RTSCTS, + /** Total number of HW retries */ + WMI_10X_VDEV_PARAM_RC_NUM_RETRIES, WMI_10X_VDEV_PARAM_AP_DETECT_OUT_OF_SYNC_SLEEPING_STA_TIME_SECS, -- 2.4.11