Hi,
As a side issue, I remember trying pcie_aspm=off as a boot parameter
and interestingly the output of lspci seemed to show it wasn't
disabled in all entries. Is this a bug? Should ath9k in particular
honour this boot option?
[root@newt ~]# lspci -vvv|egrep '^[0-9]|ASPM'
00:00.0 Host bridge: nVidia Corporation MCP79 Host Bridge (rev b1)
00:00.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
00:03.0 ISA bridge: nVidia Corporation MCP79 LPC Bridge (rev b3)
00:03.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
00:03.2 SMBus: nVidia Corporation MCP79 SMBus (rev b1)
00:03.3 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
00:03.5 Co-processor: nVidia Corporation MCP79 Co-processor (rev b1)
00:04.0 USB Controller: nVidia Corporation MCP79 OHCI USB 1.1
Controller (rev b1) (prog-if 10 [OHCI])
00:04.1 USB Controller: nVidia Corporation MCP79 EHCI USB 2.0
Controller (rev b1) (prog-if 20 [EHCI])
00:06.0 USB Controller: nVidia Corporation MCP79 OHCI USB 1.1
Controller (rev b1) (prog-if 10 [OHCI])
00:06.1 USB Controller: nVidia Corporation MCP79 EHCI USB 2.0
Controller (rev b1) (prog-if 20 [EHCI])
00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)
00:09.0 PCI bridge: nVidia Corporation MCP79 PCI Bridge (rev b1)
(prog-if 01 [Subtractive decode])
00:0a.0 Ethernet controller: nVidia Corporation MCP79 Ethernet (rev b1)
00:0b.0 SATA controller: nVidia Corporation MCP79 AHCI Controller (rev
b1) (prog-if 01 [AHCI 1.0])
00:10.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev
b1) (prog-if 00 [Normal decode])
00:15.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev
b1) (prog-if 00 [Normal decode])
LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0
<512ns, L1 <4us
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain-
CommClk-
^^^ enabled here?
00:16.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev
b1) (prog-if 00 [Normal decode])
LnkCap: Port #4, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency
L0
<512ns, L1 <4us
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
^^^ disabled here, good
02:00.0 VGA compatible controller: nVidia Corporation ION LE VGA (rev
b1) (prog-if 00 [VGA controller])
03:00.0 Network controller: Atheros Communications Inc. AR9285
Wireless Network Adapter (PCI-Express) (rev 01)
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency
L0
<512ns, L1 <64us
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain-
CommClk-
^^^ not disabled for ath9k, bug?
_______________________________________________
ath9k-devel mailing list
[email protected]
https://lists.ath9k.org/mailman/listinfo/ath9k-devel
