68 lines
5.7 KiB
Diff
68 lines
5.7 KiB
Diff
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From 872139e14410a888fe436ca6185e4e2bcbe9bf0d Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megous@megous.com>
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Date: Sat, 8 May 2021 19:10:06 +0200
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Subject: [PATCH 234/478] 8723cs: Disable use of NAPI
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It's useless anyway, since the driver doesn't disable interrupts,
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and doesn't poll the HW directly either, but keeps RX interrupt
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enabled and polls the queue that's filled from a HW interrupt.
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Driver's NAPI implementation is borked anyway, and prevents
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the NOHZ tick-stop for no reason:
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sshd-179 [000] ...2 53.703997: net_dev_queue: dev=wlan0 skbaddr=00000000bc90a6f7 len=102
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sshd-179 [000] ...4 53.704055: net_dev_start_xmit: dev=wlan0 queue_mapping=3 skbaddr=00000000bc90a6f7 vlan_tagged=0 vlan_proto=0x0000 vlan_tci=0x0000 protocol=0x0800 ip_summed=0 len=102 data_len=36 network_offset=14 transport_offset_valid=1 transport_offset=34 tx_flags=0 gso_size=0 gso_segs=1 gso_type=0x1
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sshd-179 [000] ...4 53.704148: net_dev_xmit: dev=wlan0 skbaddr=00000000bc90a6f7 len=102 rc=0
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<idle>-0 [003] d..3 53.715751: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 53.729021: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] ..s2 53.742200: napi_gro_receive_entry: dev=wlan0 napi_id=0x5 queue_mapping=0 skbaddr=0000000019168844 vlan_tagged=0 vlan_proto=0x0000 vlan_tci=0x0000 protocol=0x0800 ip_summed=0 hash=0x00000000 l4_hash=0 len=52 data_len=0 truesize=768 mac_header_valid=1 mac_header=-14 nr_frags=0 gso_size=0 gso_type=0x0
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<idle>-0 [003] ..s2 53.742235: napi_gro_receive_exit: ret=3
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<idle>-0 [003] ..s3 53.742246: netif_receive_skb: dev=wlan0 skbaddr=0000000019168844 len=52
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RTW_RECV_THREAD-150 [003] d..2 53.776890: console: RTW: unknown vendor specific information element ignored (vendor OUI 00:0c:42 len=42)
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RTW_RECV_THREAD-150 [003] d..2 53.791187: console: RTW: Unknown Broadcom information element ignored (type=52 len=26)
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<idle>-0 [003] d..3 53.803880: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 53.817165: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 53.876772: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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RTW_RECV_THREAD-150 [003] d..2 53.890125: console: RTW: unknown vendor specific information element ignored (vendor OUI 00:0c:42 len=42)
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RTW_RECV_THREAD-150 [003] d..2 53.904219: console: RTW: Unknown Broadcom information element ignored (type=52 len=26)
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<idle>-0 [003] d..3 53.916667: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 53.929825: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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RTW_RECV_THREAD-150 [003] d..2 53.981709: console: RTW: unknown vendor specific information element ignored (vendor OUI 00:0c:42 len=42)
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RTW_RECV_THREAD-150 [003] d..2 53.995976: console: RTW: Unknown Broadcom information element ignored (type=52 len=26)
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<idle>-0 [003] d..3 54.008419: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 54.021585: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 54.042131: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] d..3 54.055198: console: NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
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<idle>-0 [003] ..s2 54.068195: napi_gro_receive_entry: dev=wlan0 napi_id=0x5 queue_mapping=0 skbaddr=0000000019168844 vlan_tagged=0 vlan_proto=0x0000 vlan_tci=0x0000 protocol=0x0800 ip_summed=0 hash=0x00000000 l4_hash=0 len=88 data_len=0 truesize=1280 mac_header_valid=1 mac_header=-14 nr_frags=0 gso_size=0 gso_type=0x0
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<idle>-0 [003] ..s2 54.068235: napi_gro_receive_exit: ret=3
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<idle>-0 [003] ..s3 54.068248: netif_receive_skb: dev=wlan0 skbaddr=0000000019168844 len=88
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sshd-179 [000] ...2 54.070127: net_dev_queue: dev=wlan0 skbaddr=00000000debb8826 len=118
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sshd-179 [000] ...4 54.070194: net_dev_start_xmit: dev=wlan0 queue_mapping=3 skbaddr=00000000debb8826 vlan_tagged=0 vlan_proto=0x0000 vlan_tci=0x0000 protocol=0x0800 ip_summed=0 len=118 data_len=52 network_offset=14 transport_offset_valid=1 transport_offset=34 tx_flags=0 gso_size=0 gso_segs=1 gso_type=0x1
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sshd-179 [000] ...4 54.070328: net_dev_xmit: dev=wlan0 skbaddr=00000000debb8826 len=118 rc=0
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RTW_RECV_THREAD-150 [003] d..2 54.080901: console: RTW: unknown vendor specific information element ignored (vendor OUI 00:0c:42 len=42)
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RTW_RECV_THREAD-150 [003] d..2 54.095095: console: RTW: Unknown Broadcom information element ignored (type=52 len=26)
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Signed-off-by: Ondrej Jirman <megous@megous.com>
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---
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drivers/staging/rtl8723cs/Makefile | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/drivers/staging/rtl8723cs/Makefile b/drivers/staging/rtl8723cs/Makefile
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index b428d679e83e..a709256357f9 100644
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--- a/drivers/staging/rtl8723cs/Makefile
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+++ b/drivers/staging/rtl8723cs/Makefile
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@@ -81,8 +81,8 @@ CONFIG_TDLS = y
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CONFIG_WIFI_MONITOR = y
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CONFIG_MCC_MODE = n
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CONFIG_APPEND_VENDOR_IE_ENABLE = n
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-CONFIG_RTW_NAPI = y
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-CONFIG_RTW_GRO = y
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+CONFIG_RTW_NAPI = n
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+CONFIG_RTW_GRO = n
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CONFIG_RTW_NETIF_SG = y
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CONFIG_RTW_IPCAM_APPLICATION = n
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CONFIG_RTW_REPEATER_SON = n
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--
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2.35.3
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