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Mieze

Mieze

Member Since 27 Mar 2012
Offline Last Active Today, 02:55 PM
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Topics I've Started

IntelMausiEthernet.kext for Intel onboard LAN

31 January 2015 - 12:26 AM

This project is dedicated to the memory of Mausi, the cat I loved more than anybody else.

 

Attached File  Mausi.jpg   51.12KB   12 downloads

 

A few days before Christmas I started my latest project, a new driver for recent Intel onboard LAN controllers. My intention was not to replace hnak's AppleIntelE1000e.kext completely but to deliver best performance and stability on recent hardware. That's why I dropped support for a number of older NICs. Currently the driver supports:

 

5 Series

  • 82578LM
  • 82578LC
  • 82578DM
  • 82578DC

6 and 7 Series

  • 82579LM
  • 82579V

8 and 9 Series

  • I217LM
  • I217V
  • I218LM
  • I218V
  • I218LM2
  • I218V2
  • I218LM3

Key Features of the Driver

  • Support for multisegment packets relieving the network stack of unnecessary copy operations when assembling packets for transmission.
  • No-copy receive and transmit. Only small packets are copied on reception because creating a copy is more efficient than allocating a new buffer.
  • TCP, UDP and IPv4 checksum offload (receive and transmit).
  • Support for TCP/IPv6 and UDP/IPv6 checksum offload.
  • Makes use of the chip's TCP Segmentation Offload (TSO) feature with IPv4 and IPv6 in order to reduce CPU load while sending large amounts of data.
  • Fully optimized for Yosemite and Mavericks (64bit architecture) but should work with Mountain Lion and Lion too, provided you build from source with the 10.8 or 10.7 SDK.
  • Support for Energy Efficient Ethernet (EEE).
  • VLAN support is implemented but untested as I have no need for it.
  • The driver is published under GPLv2.

Current Status

  • The driver has been tested successfully with I217V, I218V and 82579V under 10.9.5, 10.10.1, 10.10.2 and 10.10.3.
  • The attached archive includes source code as well as a prebuilt binary (debug version) for Mavericks and Yosemite.

Known Issues

  • Some mainboards need a DSDT patch in order to work properly with the driver.
  • There seem to be problems while using VMware with version 1.x.x of the driver. In case you are affected use version 2.0.0d2.

FAQ

  • Could you add support of for...? Well, you are probably asking me to add support for one of the older NICs like the 82571/2/3/4L or 82583 and the answer will be no as I dropped support for these chips intentionally. They are broken and I lost more than 2 weeks trying to make it work on the 82574L without success. I was asked to add support for I210, I211 and I350 but as these chips have a completely different architecture, which isn't supported by the underlying Linux driver, this is impossible, sorry.
  • Does it work with Snow Leopard or 32 bit kernels? No and I have no plans to make a version for 32 bit kernels or anything older than Lion.
  • Is TSO working stable? It took some time to make TSO support work the way it should but after successfully transferring a few 100GB with this driver I have reason to believe it works.

Installation

  1. Goto /S/L/E and delete AppleIntelE1000e.kext.
  2. Recreate the kernel cache.
  3. Open System Preferences and delete the corresponding network interface, e. g. en0.
  4. Reboot.
  5. Install the new driver and recreate the kernel cache. I recommend to use Kext Wizard or a similar utility for the installation.
  6. Reboot
  7. Open System Preferences again, select Network and check if the new network interface has been created automatically or create it manually now.
  8. Configure the interface.

Troubleshooting

  • Make sure you have followed the installation instructions especially when you have issues with certain domains while the others are working fine.
  • Use the debug version to collect log data when trying to track down problems. The kernel log messages can be retrieved with "grep kernel /var/log/system.log" in Terminal. Include the log data when asking for support or giving feedback. I'm an engineer, not a clairvoyant.
  • Don't copy and paste large amounts of log data to your post. Create an archive with the log data and attach it to your post. In case you don't want to make your log data publicly accessible, contact me via PM and I will provide you a mail address to send it directly to me. 
  • Check your BIOS settings. You might want to disable Network Boot and the UEFI Network Stack as these can interfere with the driver.
  • Double check that you have removed any AppleIntelE1000e.kext from your system because it could prevent the driver from working properly.
  • Verify your bootloader configuration, in particular the kernel flags. Avoid using npci=0x2000 or npci=0x3000. 
  • In Terminal run netstat -s in order to display network statistics. Carefully examine the data for any unusual activity like a high number of packets with bad IP header checksums, etc.
  • In case auto-configuration of the link layer connection doesn't work it might be necessary to select the medium manually in System Preferences under Network for the interface.
  • Use Wireshark to create a packet dump in order to collect diagnostic information.
  • Keep in mind that there are many manufacturers of network equipment. Although Ethernet is an IEEE standard, different implementations may show different behavior causing incompatibilities. In case you are having trouble try a different switch or a different cable.

Changelog

  • Version 2.0.0 (2015-04-22)
    • First official release which is identical to 2.0.0d2 (only the version number has been changed).
  • Version 2.0.0d2 (2015-04-04)
    • Changed the tx descriptor write back policy for 82579, I217 and I218 to prevent random tx deadlocks.
  • Version 2.0.0d1 (2015-03-14)
    • Uses Apple's private driver interface introduced with 10.8.
    • Supports packet scheduling with QFQ
    • Solves the VMware issue.
  • Version 1.0.0d6 (2015-03-04)
    • Reworked TSO6 support to avoid problems with VMware.
    • Wake-on-LAN now working.
  • Version 1.0.0d5 (2015-02-27)
    • Reworked TSO4 support to eliminate the bug of 1.0.0d4.
    • Added some debug code in order to collect information about the VMware related issue.
  • Version 1.0.0d4 (2015-02-25)
    • Set total length field of the IP-header to zero for TSO4 operations.
    • Report EEE activation state in kernel log message when the link has been established.
  • Version 1.0.0d3 (2015-02-11)
    • Reworked media selection and EEE support (EEE is now activated when both link partners support it. It can be disabled selecting the medium manually).
    • Duplex setting for 10/100 MBit connections is now reported correctly.
    • The number of tx descriptors has been reduced from 2048 to 1024.
    • The code has been cleaned up and obsolete files have been removed.
  • Version 1.0.0d2 (2015-01-31)
    • First development release.

Getting the Driver

Sad but true...

03 October 2014 - 02:14 AM

"Yesterday I set my house on fire and it burned down to the ground. It must have been built improperly."

 
As a building contractor you would surely find this complaint incomprehensible, but as a driver programmer you get this type of complaints on a regular basis.
 
:cat:

Solution for Qualcomm Atheros AR816x, AR817x and Killer E220x

04 August 2014 - 03:38 PM

This project is dedicated to the memory of Carlos Gato Vaca.

 

Attached File  Carlos320.jpg   23.2KB   0 downloads

 

I spent the last 2 weeks writing a driver for my Killer E2200 NIC because there is no stable working driver for recent Atheros chips under OS X. Most of the hardware specific code is based on Johannes Berg's alx driver for Linux and the OS X driver framework was taken from my Realtek driver. Although it is working stable for me on my Killer E2200 NIC (I never had a kernel panic or lost the network connection since I published the first development version last monday) it still needs more testing, in particular with the other supported devices I have no personal access to. That's why I would like to ask everybody with a supported chip to give it a try and report back.

 

Key Features of the Driver

  • Supports Qualcomm Atheros AR816x, AR817x and Killer E220x.
  • Support for multisegment packets relieving the network stack of unnecessary copy operations when assembling packets for transmission.
  • No-copy receive and transmit. Only small packets are copied on reception because creating a copy is more efficient than allocating a new buffer.
  • TCP, UDP and IPv4 checksum offload (receive and transmit).
  • Support for TCP/IPv6 and UDP/IPv6 checksum offload.
  • Makes use of the chip's TCP Segmentation Offload (TSO) feature with IPv4 and IPv6 in order to reduce CPU load while sending large amounts of data.
  • Fully optimized for Mountain Lion, Mavericks and Yosemite (64bit architecture) but should work with Lion too, provided you build from source with the 10.7 SDK.
  • Support for Energy Efficient Ethernet (EEE).
  • Wake on LAN support.
  • VLAN support is implemented but untested as I have no need for it.
  • The driver is published under GPLv2.

Known Issues

  • None.

FAQ

  • Could you add support for AR813x and AR815x? Sorry, no, because I used a different linux driver as the code base than Shailua which doesn't support these chips so that it would be too much work to add support for them.

Installation

  1. Goto /S/L/E and delete ALXEthernet.kext.
  2. Recreate the kernel cache.
  3. Open System Preferences and delete the corresponding network interface, e. g. en0.
  4. Reboot.
  5. Install the new driver and recreate the kernel cache. I recommend to use Kext Wizard or a similar utility for the installation.
  6. Reboot
  7. Open System Preferences again, select Network and check if the new network interface has been created automatically or create it manually now.
  8. Configure the interface.

Troubleshooting

  • Make sure you have followed the installation instructions especially when you have issues with certain domains while the others are working fine.
  • Use the debug version to collect log data when trying to track down problems. The kernel log messages can be retrieved with "grep kernel /var/log/system.log" in Terminal. Include the log data when asking for support or giving feedback. I'm an engineer, not a clairvoyant.
  • Don't copy and paste large amounts of log data to your post. Create an archive with the log data and attach it to your post. In case you don't want to make your log data publicly accessible, contact me via PM and I will provide you a mail address to send it directly to me.
  • Check your BIOS settings. You might want to disable Network Boot and the UEFI Network Stack as these can interfere with the driver.
  • Double check that you have removed any ALXEthernet.kext from your system because it could prevent the driver from working properly.
  • Verify your bootloader configuration, in particular the kernel flags. Avoid using npci=0x2000 or npci=0x3000. 
  • In Terminal run netstat -s in order to display network statistics. Carefully examine the data for any unusual activity like a high number of packets with bad IP header checksums, etc.
  • In case auto-configuration of the link layer connection doesn't work it might be necessary to select the medium manually in System Preferences under Network for the interface.
  • Use Wireshark to create a packet dump in order to collect diagnostic information.
  • Keep in mind that there are many manufacturers of network equipment. Although Ethernet is an IEEE standard, different implementations may show different behavior causing incompatibilities. In case you are having trouble try a different switch or a different cable.

Changelog

  • Version 2.0.0 (2015-04-21)
    •  Uses Apple's private driver interface introduced with 10.8.
    •  Supports packet scheduling with QFQ.
    •  Please note that 2.0.0 is identical to 2.0.0d1. Only the version number has changed.
  • Version 1.0.1 (2015-03-01)
    • Reworked media selection and reporting.
    • Resolved the NIC disabled by BIOS issue.
    • Improved flow control support.
  • Version 1.0.0 (2014-10-05)
    • Official release which is identical to 1.0.0d7.
  • Version 1.0.0d7 (2014-08-18)
    • Fixed Wake on LAN.
  • Version 1.0.0d6 (2014-08-16)
    • Detects situations when the BIOS left the NIC disabled and outputs an error messages.
    • Small optimizations and improved error handling.
  • Version 1.0.0d5 (2014-08-13)
    • Removed the mbuf_pullup() call in outputPacket() as the NIC seems to accept packets with noncontiguous headers.
  • Version 1.0.0d4 (2014-08-12)
    • Fixed TSO with IPv4 and IPv6.
  • Version 1.0.0d3 (2014-08-10)
    • Added support for TCP and UDP checksum offload over IPv6.

    • Cleaned up the code and improved error handling.

 

Getting the driver

 

Mieze

Asrock Boards with unlocked MSRs

13 June 2014 - 05:03 PM

Yesterday I got my new mainboard, an Asrock Fatal1ty B85 Killer. The first thing I did was upgrading the BIOS to the latest version available (V1.30). Next I wanted to patch it with PMpatch in order to unlock the MSRs but I was very surprised that PMpatch didn't found a match pattern in the power management module. This made me curious and I tried to boot Mavericks with the vanilla BIOS and it succeeded. No KP, no early reboot.

 

Obviously Asrock has decided to change their policy with regard to the CPU's MSRs in some of their latest BIOS releases for at least a few of their boards because I don't think that the Fatal1ty B85 Killer is the only board with unlocked MSRs. I wouldn't be surprised in case other members of their Fatal1ty series of mainboards are affected of this change of mind too. It would be great if anybody with access to one of these boards could confirm this.

 

Update:

 

I downloaded the BIOS files of the following boards from Asrock's website and tried to patch them with PMPatch but it didn't find a matching pattern in any of these BIOS files. It looks like all these boards have unlocked MSRs too. Well, it might also be the case that PMPatch lacks some matching patterns but you would need a board in order to verify this.

  • Asrock Fatal1ty H97 Killer (Version 1.10)
  • Asrock Fatal1ty Z97 Killer (Version 1.30)
  • Asrock Fatal1ty Z87 Killer (Version 1.40)

Mieze

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