summarylogtreecommitdiffstats
path: root/0003-iwlwifi-mvm-disable-TX-AMSDU-on-older-NICs.patch
diff options
context:
space:
mode:
Diffstat (limited to '0003-iwlwifi-mvm-disable-TX-AMSDU-on-older-NICs.patch')
-rw-r--r--0003-iwlwifi-mvm-disable-TX-AMSDU-on-older-NICs.patch53
1 files changed, 0 insertions, 53 deletions
diff --git a/0003-iwlwifi-mvm-disable-TX-AMSDU-on-older-NICs.patch b/0003-iwlwifi-mvm-disable-TX-AMSDU-on-older-NICs.patch
deleted file mode 100644
index 59d743decca..00000000000
--- a/0003-iwlwifi-mvm-disable-TX-AMSDU-on-older-NICs.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-From f6f6b798c7330d7851fee4bbe835c3954886fc3f Mon Sep 17 00:00:00 2001
-From: Johannes Berg <johannes.berg@intel.com>
-Date: Wed, 3 Jul 2019 11:10:49 +0300
-Subject: [PATCH 3/4] iwlwifi: mvm: disable TX-AMSDU on older NICs
-
-On older NICs, we occasionally see issues with A-MSDU support,
-where the commands in the FIFO get confused and then we see an
-assert EDC because the next command in the FIFO isn't TX.
-
-We've tried to isolate this issue and understand where it comes
-from, but haven't found any errors in building the A-MSDU in
-software.
-
-At least for now, disable A-MSDU support on older hardware so
-that users can use it again without fearing the assert.
-
-This fixes https://bugzilla.kernel.org/show_bug.cgi?id=203315.
-
-Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
-Acked-by: Kalle Valo <kvalo@codeaurora.org>
----
- drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 14 +++++++++++++-
- 1 file changed, 13 insertions(+), 1 deletion(-)
-
-diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
-index fdbabca0280e..3a076e5e319f 100644
---- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
-+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
-@@ -468,7 +468,19 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
- ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
- ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
- ieee80211_hw_set(hw, STA_MMPDU_TXQ);
-- ieee80211_hw_set(hw, TX_AMSDU);
-+ /*
-+ * On older devices, enabling TX A-MSDU occasionally leads to
-+ * something getting messed up, the command read from the FIFO
-+ * gets out of sync and isn't a TX command, so that we have an
-+ * assert EDC.
-+ *
-+ * It's not clear where the bug is, but since we didn't used to
-+ * support A-MSDU until moving the mac80211 iTXQs, just leave it
-+ * for older devices. We also don't see this issue on any newer
-+ * devices.
-+ */
-+ if (mvm->cfg->device_family >= IWL_DEVICE_FAMILY_9000)
-+ ieee80211_hw_set(hw, TX_AMSDU);
- ieee80211_hw_set(hw, TX_FRAG_LIST);
-
- if (iwl_mvm_has_tlc_offload(mvm)) {
---
-2.22.0
-