From: Emmanuel Grumbach <egrumbach@gmail.com>
To: linux-wireless@vger.kernel.org
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Subject: [PATCH 01/36] iwlwifi: mvm: don't send SMPS action frame with single RX antenna
Date: Tue, 17 Dec 2013 22:44:04 +0200 [thread overview]
Message-ID: <1387313079-28123-1-git-send-email-egrumbach@gmail.com> (raw)
In-Reply-To: <52B0B72A.5070704@gmail.com>
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Products that have only 1 antenna in Rx don't support MIMO
in RX. As a consequence, they will be in STATIC always.
Don't tell mac80211 to update SMPS in that case. mac80211
would send an action frame to the AP which is clearly
bogus.
As a matter of fact, we have seen that some APs send a
deauth when that happens.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
drivers/net/wireless/iwlwifi/mvm/utils.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 56cf819..f4aff56 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -518,6 +518,11 @@ void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
int i;
lockdep_assert_held(&mvm->mutex);
+
+ /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */
+ if (num_of_ant(iwl_fw_valid_rx_ant(mvm->fw)) == 1)
+ return;
+
mvmvif = iwl_mvm_vif_from_mac80211(vif);
mvmvif->smps_requests[req_type] = smps_request;
for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
--
1.7.9.5
next prev parent reply other threads:[~2013-12-17 20:44 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-17 20:42 pull request: iwlwifi-next 2013-12-17 Emmanuel Grumbach
2013-12-17 20:44 ` Emmanuel Grumbach [this message]
2013-12-17 20:44 ` [PATCH 02/36] iwlwifi: mvm: Add Smart FIFO support Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 03/36] iwlwifi: mvm: add a generic cipher scheme support Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 04/36] iwlwifi: publish STBC support in HT Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 05/36] iwlwifi: set VHT beamformee STS cap correctly Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 06/36] iwlwifi: publish Tx STBC support in VHT Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 07/36] iwlwifi: mvm: Add uAPSD misbehaving AP notification handling Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 08/36] iwlwifi: mvm: Change power management dependency on multi MAC Emmanuel Grumbach
2014-01-13 11:13 ` Karl Beldan
2014-01-13 11:15 ` Grumbach, Emmanuel
2014-01-13 12:41 ` Karl Beldan
2014-01-16 20:08 ` Emmanuel Grumbach
2014-01-16 21:43 ` Karl Beldan
2014-02-13 12:01 ` Emmanuel Grumbach
2014-03-06 10:21 ` Karl Beldan
2014-03-06 10:22 ` Grumbach, Emmanuel
2014-03-06 11:59 ` Karl Beldan
2014-03-06 10:25 ` Grumbach, Emmanuel
2014-03-06 10:49 ` Karl Beldan
2014-03-06 10:58 ` Grumbach, Emmanuel
2014-03-06 11:02 ` Grumbach, Emmanuel
2014-03-06 11:54 ` Karl Beldan
2013-12-17 20:44 ` [PATCH 09/36] iwlwifi: mvm: Disable power save for monitor interface Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 10/36] iwlwifi: mvm: Enable power save on a single P2P client interface Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 11/36] iwlwifi: mvm: add per-vif power debugfs hooks Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 12/36] iwlwifi: mvm: move iwl_mvm_set_tx_power to PHY area Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 13/36] iwlwifi: mvm: add multicast filtering support Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 14/36] iwlwifi: mvm: configure phy_ctxt with min_def Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 15/36] iwlwifi: mvm: clarify smps_requests documentation Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 16/36] iwlwifi: trans: divide stop_hw into stop_device/op_mode_leave Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 17/36] iwlwifi: trans: use a unified transport status Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 18/36] iwlwifi: trans: prevent tx and cmds during FW error Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 19/36] iwlwifi: mvm: rs: move rs_program_fix_rate to cleanup ifdefs Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 20/36] iwlwifi: remove pointer to transport from op_mode Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 21/36] iwlwifi: mvm: check iwl_nvm_init return value Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 22/36] iwlwifi: trans: prevent reprobe on repeated FW errors before restart Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 23/36] iwlwifi: trans: clear FW_ERROR status in common code Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 24/36] iwlwifi: trans: turn set_pmi into an optional callback Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 25/36] iwlwifi: mvm: Add and examine TLV flag for P2P client uAPSD support Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 26/36] iwlwifi: mvm: rs: refactor building the LQ command Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 27/36] iwlwifi: mvm: rs: avoid recalc of supported legacy rate mask Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 28/36] iwlwifi: mvm: rs: improve rates table algo Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 29/36] iwlwifi: mvm: rs: remove unnecessary debug logs Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 30/36] iwlwifi: mvm: rs: refactor rate scale action decision Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 31/36] iwlwifi: mvm: fixup Makefile Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 32/36] iwlwifi: mvm: Do not allow AP MAC context update if not active Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 33/36] iwlwifi: mvm: rs: disable MCS9 Tx workaround Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 34/36] iwlwifi: mvm: set highest rate in VHT MCS Set Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 35/36] iwlwifi: mvm: rs: fix RTS protection being set indefinitely Emmanuel Grumbach
2013-12-17 20:44 ` [PATCH 36/36] iwlwifi: mvm: rs: fix variable shadowing Emmanuel Grumbach
2013-12-18 20:12 ` pull request: iwlwifi-next 2013-12-17 John W. Linville
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