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authorWey-Yi Guy <wey-yi.w.guy@intel.com>2010-11-10 09:56:43 -0800
committerJohn W. Linville <linville@tuxdriver.com>2010-11-15 13:26:49 -0500
commit35a6eb36520b938742d8680fd8d821df20982ced (patch)
treec353b73bf8175c20f62dbcd1c45cfa722b39be45 /drivers
parentfd11743dd25efe7157ff17b03dd2db0cbb6fed05 (diff)
downloadblackbird-op-linux-35a6eb36520b938742d8680fd8d821df20982ced.tar.gz
blackbird-op-linux-35a6eb36520b938742d8680fd8d821df20982ced.zip
iwlwifi: resending QoS command when HT changes
"mac80211: Fix WMM driver queue configuration" inadvertedly broke iwlwifi, because now mac80211 configures the QoS settings before assoc, and therefore before HT. Thus, iwlwifi no longer told the device about the HT setting, which it needs to -- and thus throughput went down a lot. Fix this by resending the QoS command to the device not only when QoS/WMM settings change, but also when HT changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-rxon.c65
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-legacy.c60
2 files changed, 69 insertions, 56 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index f0ddfb1a9c87..02288779a71f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -269,6 +269,34 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
return 0;
}
+static void iwlagn_update_qos(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx)
+{
+ int ret;
+
+ if (!ctx->is_active)
+ return;
+
+ ctx->qos_data.def_qos_parm.qos_flags = 0;
+
+ if (ctx->qos_data.qos_active)
+ ctx->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+ if (ctx->ht.enabled)
+ ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
+
+ IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ ctx->qos_data.qos_active,
+ ctx->qos_data.def_qos_parm.qos_flags);
+
+ ret = iwl_send_cmd_pdu(priv, ctx->qos_cmd,
+ sizeof(struct iwl_qosparam_cmd),
+ &ctx->qos_data.def_qos_parm);
+ if (ret)
+ IWL_ERR(priv, "Failed to update QoS\n");
+}
+
int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
{
struct iwl_priv *priv = hw->priv;
@@ -277,6 +305,7 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
struct ieee80211_channel *channel = conf->channel;
const struct iwl_channel_info *ch_info;
int ret = 0;
+ bool ht_changed[NUM_IWL_RXON_CTX] = {};
IWL_DEBUG_MAC80211(priv, "changed %#x", changed);
@@ -324,7 +353,11 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
for_each_context(priv, ctx) {
/* Configure HT40 channels */
- ctx->ht.enabled = conf_is_ht(conf);
+ if (ctx->ht.enabled != conf_is_ht(conf)) {
+ ctx->ht.enabled = conf_is_ht(conf);
+ ht_changed[ctx->ctxid] = true;
+ }
+
if (ctx->ht.enabled) {
if (conf_is_ht40_minus(conf)) {
ctx->ht.extension_chan_offset =
@@ -392,40 +425,14 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
continue;
iwlagn_commit_rxon(priv, ctx);
+ if (ht_changed[ctx->ctxid])
+ iwlagn_update_qos(priv, ctx);
}
out:
mutex_unlock(&priv->mutex);
return ret;
}
-static void iwlagn_update_qos(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- int ret;
-
- if (!ctx->is_active)
- return;
-
- ctx->qos_data.def_qos_parm.qos_flags = 0;
-
- if (ctx->qos_data.qos_active)
- ctx->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_UPDATE_EDCA_MSK;
-
- if (ctx->ht.enabled)
- ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
-
- IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
- ctx->qos_data.qos_active,
- ctx->qos_data.def_qos_parm.qos_flags);
-
- ret = iwl_send_cmd_pdu(priv, ctx->qos_cmd,
- sizeof(struct iwl_qosparam_cmd),
- &ctx->qos_data.def_qos_parm);
- if (ret)
- IWL_ERR(priv, "Failed to update QoS\n");
-}
-
static void iwlagn_check_needed_chains(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_bss_conf *bss_conf)
diff --git a/drivers/net/wireless/iwlwifi/iwl-legacy.c b/drivers/net/wireless/iwlwifi/iwl-legacy.c
index 10d9c4202875..a08b4e56e6b1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-legacy.c
+++ b/drivers/net/wireless/iwlwifi/iwl-legacy.c
@@ -34,6 +34,32 @@
#include "iwl-helpers.h"
#include "iwl-legacy.h"
+static void iwl_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
+{
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (!ctx->is_active)
+ return;
+
+ ctx->qos_data.def_qos_parm.qos_flags = 0;
+
+ if (ctx->qos_data.qos_active)
+ ctx->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+ if (ctx->ht.enabled)
+ ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
+
+ IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ ctx->qos_data.qos_active,
+ ctx->qos_data.def_qos_parm.qos_flags);
+
+ iwl_send_cmd_pdu_async(priv, ctx->qos_cmd,
+ sizeof(struct iwl_qosparam_cmd),
+ &ctx->qos_data.def_qos_parm, NULL);
+}
+
/**
* iwl_legacy_mac_config - mac80211 config callback
*/
@@ -49,6 +75,7 @@ int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed)
int ret = 0;
u16 ch;
int scan_active = 0;
+ bool ht_changed[NUM_IWL_RXON_CTX] = {};
if (WARN_ON(!priv->cfg->ops->legacy))
return -EOPNOTSUPP;
@@ -100,7 +127,10 @@ int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed)
for_each_context(priv, ctx) {
/* Configure HT40 channels */
- ctx->ht.enabled = conf_is_ht(conf);
+ if (ctx->ht.enabled != conf_is_ht(conf)) {
+ ctx->ht.enabled = conf_is_ht(conf);
+ ht_changed[ctx->ctxid] = true;
+ }
if (ctx->ht.enabled) {
if (conf_is_ht40_minus(conf)) {
ctx->ht.extension_chan_offset =
@@ -177,6 +207,8 @@ int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed)
else
IWL_DEBUG_INFO(priv,
"Not re-sending same RXON configuration.\n");
+ if (ht_changed[ctx->ctxid])
+ iwl_update_qos(priv, ctx);
}
out:
@@ -295,32 +327,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
IWL_DEBUG_ASSOC(priv, "leave\n");
}
-static void iwl_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (!ctx->is_active)
- return;
-
- ctx->qos_data.def_qos_parm.qos_flags = 0;
-
- if (ctx->qos_data.qos_active)
- ctx->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_UPDATE_EDCA_MSK;
-
- if (ctx->ht.enabled)
- ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
-
- IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
- ctx->qos_data.qos_active,
- ctx->qos_data.def_qos_parm.qos_flags);
-
- iwl_send_cmd_pdu_async(priv, ctx->qos_cmd,
- sizeof(struct iwl_qosparam_cmd),
- &ctx->qos_data.def_qos_parm, NULL);
-}
-
static inline void iwl_set_no_assoc(struct iwl_priv *priv,
struct ieee80211_vif *vif)
{
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