3.4.84-stable review: iwlwifi module fails with an Intel 6205

3.4.84-stable review: iwlwifi module fails with an Intel 6205

[Andres Bertens]

Hello,

Same as reported with 3.4.83 release, 3.4.84-rc1 also makes my wifi 
network card stop working:
    iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110
    iwlwifi 0000:03:00.0: Unable to initialize device.

My laptop is a Lenovo Thinkpad X230 with an Intel Corporation Centrino 
Advanced-N 6205 [Taylor Peak] (rev 34). Another user also reported same 
problem with an Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74

As a workaround, reverting patch from release 3.4.83:
     Johannes Berg <johannes.berg@intel.com>
        iwlwifi: always copy first 16 bytes of commands
makes it work again.


Saludos,
Andres Bertens


PS
If of any interest, here are related logs.

Linux mintaka 3.4.84-rc1 #1 SMP Fri Mar 21 15:38:25 CLST 2014 x86_64 
x86_64 x86_64 GNU/Linux

Device not working (without reverting patch)
============================================
iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
iwlwifi 0000:03:00.0: pci_resource_base = ffffc90006658000
iwlwifi 0000:03:00.0: HW Revision ID = 0x34
iwlwifi 0000:03:00.0: irq 42 for MSI/MSI-X
iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN, 
REV=0xB0
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: device EEPROM VER=0x715, CALIB=0x6
iwlwifi 0000:03:00.0: Device SKU: 0x1F0
iwlwifi 0000:03:00.0: Valid Tx ant: 0x3, Valid Rx ant: 0x3
iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
iwlwifi 0000:03:00.0: Error sending CALIBRATION_CFG_CMD: time out after 
2000ms.
iwlwifi 0000:03:00.0: Current CMD queue read_ptr 2 write_ptr 3
iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 
[0x077f0001]
iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110
iwlwifi 0000:03:00.0: Unable to initialize device.


Device working (patch reverted)
================================
iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
iwlwifi 0000:03:00.0: pci_resource_base = ffffc90006610000
iwlwifi 0000:03:00.0: HW Revision ID = 0x34
iwlwifi 0000:03:00.0: irq 44 for MSI/MSI-X
iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN, 
REV=0xB0
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: device EEPROM VER=0x715, CALIB=0x6
iwlwifi 0000:03:00.0: Device SKU: 0x1F0
iwlwifi 0000:03:00.0: Valid Tx ant: 0x3, Valid Rx ant: 0x3
iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0