Bug 198417 - iwlwifi: 9260: Slow download speed with Netgear R7800 router
Summary: iwlwifi: 9260: Slow download speed with Netgear R7800 router
Status: CLOSED DUPLICATE of bug 198351
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless (show other bugs)
Hardware: Intel Linux
: P1 high
Assignee: DO NOT USE - assign "network-wireless-intel" component instead
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-01-09 04:38 UTC by sergeidanilov
Modified: 2018-01-15 10:45 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.15.0-rc6
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg output (53.52 KB, text/plain)
2018-01-09 04:38 UTC, sergeidanilov 		Details
trace-cmd record output (2.13 MB, application/x-xz)
2018-01-09 04:39 UTC, sergeidanilov 		Details
Add an attachment (proposed patch, testcase, etc.)

Description sergeidanilov 2018-01-09 04:38:23 UTC 
Created attachment 273491 [details]
dmesg output

I have two router Netgear R7000 and Netgear 7800.


9260 shows only 0.3mbit/sec with R7800.
And 9260+Netgear R7000 gives 16MBytes/sec with the same internet plug.

9260+ R7800+ Windows gives the same 16MBytes/sec


Changing MU-MIMO or 160Ghz features on router side does not affect slow speeds.
Comment 1 sergeidanilov 2018-01-09 04:39:27 UTC 
Created attachment 273493 [details]
trace-cmd record output
Comment 2 sergeidanilov 2018-01-09 04:44:55 UTC 
Comment on attachment 273493 [details]
trace-cmd record output

Attached trace-cmd record output while doing google speedtest
Comment 3 Emmanuel Grumbach 2018-01-15 08:50:36 UTC 
Does this help?


diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index c2388694979f..2f6f94f65160 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -470,7 +470,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
        ieee80211_hw_set(hw, CHANCTX_STA_CSA);
        ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
        ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
-       ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
+//     ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
        ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
 
        if (iwl_mvm_has_tlc_offload(mvm)) {
Comment 4 sergeidanilov 2018-01-15 10:15:10 UTC 
yes, that helps!
thanks!
I get full speed now
Comment 5 Emmanuel Grumbach 2018-01-15 10:45:47 UTC 

*** This bug has been marked as a duplicate of bug 198351 ***
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