From f6c8f1523a2de3b84340e45913cbcee8bee74570 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Fri, 12 Mar 2010 11:13:26 -0800 Subject: iwlwifi: fix regulatory Commit "cfg80211: convert bools into flags" mistakenly modified iwlwifi's regulatory settings instead of just converting it. Fix this. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2172 Signed-off-by: Reinette Chatre CC: stable@kernel.org --- drivers/net/wireless/iwlwifi/iwl-agn.c | 2 +- drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 818367b57bab..c8e2e3a42b4b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2644,7 +2644,7 @@ static int iwl_mac_setup_register(struct iwl_priv *priv) BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); - hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY | + hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS; /* diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 54daa38ecba3..f93013e9b17d 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -3921,7 +3921,7 @@ static int iwl3945_setup_mac(struct iwl_priv *priv) BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); - hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY | + hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS; hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; -- cgit v1.2.3 From be6b38bcb175613f239e0b302607db346472c6b6 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Thu, 18 Mar 2010 09:05:00 -0700 Subject: iwlwifi: counting number of tfds can be free for 4965 Forget one hunk in 4965 during "iwlwifi: error checking for number of tfds in queue" patch. Reported-by: Shanyu Zhao Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre CC: stable@kernel.org --- drivers/net/wireless/iwlwifi/iwl-4965.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 1bd2cd836026..83c52a682622 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -2041,16 +2041,14 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, tx_resp->failure_frame); freed = iwl_tx_queue_reclaim(priv, txq_id, index); - if (qc && likely(sta_id != IWL_INVALID_STATION)) - priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; + iwl_free_tfds_in_queue(priv, sta_id, tid, freed); if (priv->mac80211_registered && (iwl_queue_space(&txq->q) > txq->q.low_mark)) iwl_wake_queue(priv, txq_id); } - if (qc && likely(sta_id != IWL_INVALID_STATION)) - iwl_txq_check_empty(priv, sta_id, tid, txq_id); + iwl_txq_check_empty(priv, sta_id, tid, txq_id); if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n"); -- cgit v1.2.3 From 48a6be6a0dd3982bb2d48e82b3e6f5458d9f3c63 Mon Sep 17 00:00:00 2001 From: Shanyu Zhao Date: Tue, 16 Mar 2010 10:22:26 -0700 Subject: iwlwifi: clear unattended interrupts in tasklet Previously in interrupt handling tasklet, iwlwifi driver only clear/ack those interrupts that are enabled by the driver through inta_mask. If the hardware generates unattended interrupts, driver will not ack them, defeating the interrupt coalescing feature. This results in high number of interrupts per second and high CPU utilization. This patch addresses this issue by acking those unattended interrupts in the tasklet. Local test showed an order of magnitude improvement in terms of the number of interrupts without sacrificing networking throughput. This is a workaround for hardware issue. Signed-off-by: Shanyu Zhao Signed-off-by: Zhu Yi Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-agn.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index c8e2e3a42b4b..e4c2e1e448ad 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1258,7 +1258,15 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) /* Ack/clear/reset pending uCode interrupts. * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, */ - iwl_write32(priv, CSR_INT, priv->inta); + /* There is a hardware bug in the interrupt mask function that some + * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if + * they are disabled in the CSR_INT_MASK register. Furthermore the + * ICT interrupt handling mechanism has another bug that might cause + * these unmasked interrupts fail to be detected. We workaround the + * hardware bugs here by ACKing all the possible interrupts so that + * interrupt coalescing can still be achieved. + */ + iwl_write32(priv, CSR_INT, priv->inta | ~priv->inta_mask); inta = priv->inta; -- cgit v1.2.3 From 8e1a53c615e8efe0fac670f2973da64758748a8a Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 28 Mar 2010 14:55:00 +0300 Subject: iwlwifi: range checking issue IWL_RATE_COUNT is 13 and IWL_RATE_COUNT_LEGACY is 12. IWL_RATE_COUNT_LEGACY is the right one here because iwl3945_rates doesn't support 60M and also that's how "rates" is defined in iwlcore_init_geos() from drivers/net/wireless/iwlwifi/iwl-core.c. rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY), GFP_KERNEL); Signed-off-by: Dan Carpenter Cc: stable@kernel.org Acked-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index f93013e9b17d..e276f2a4e835 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1955,7 +1955,7 @@ static void iwl3945_init_hw_rates(struct iwl_priv *priv, { int i; - for (i = 0; i < IWL_RATE_COUNT; i++) { + for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { rates[i].bitrate = iwl3945_rates[i].ieee * 5; rates[i].hw_value = i; /* Rate scaling will work on indexes */ rates[i].hw_value_short = i; -- cgit v1.2.3