Date: Mon, 30 Jun 2008 09:27:11 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: net@FreeBSD.org, current@FreeBSD.org Cc: arch@FreeBSD.org Subject: Re: HEAD UP: non-MPSAFE network drivers to be disabled (was: 8.0 network stack MPsafety goals (fwd)) Message-ID: <20080630091033.P3968@fledge.watson.org> In-Reply-To: <20080629180126.F90836@fledge.watson.org> References: <20080524111715.T64552@fledge.watson.org> <20080629180126.F90836@fledge.watson.org>
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On Sun, 29 Jun 2008, Robert Watson wrote: > An FYI on the state of things here: in the last month, John has updated a > number of device drivers to be MPSAFE, and the USB work remains in-flight. > I'm holding fire a bit on disabling IFF_NEEDSGIANT while things settle and I > catch up on driver state, and will likely send out an update next week > regarding which device drivers remain on the kill list, and generally what > the status of this project is. Here's the revised list of drivers that will have their build disabled in the next week (subject to an appropriate block of time for me): Name Bus Man page description ---- --- -------------------- ar ISA/PCI synchronous Digi/Arnet device driver arl ISA Aironet Arlan 655 wireless network adapter driver cnw ISA Netwave AirSurfer wireless network driver ic I2C I2C bus system oltr ISA/PCI Olicom Token Ring device driver plip PPBUS printer port Internet Protocol driver ppp TTY point to point protocol network interface ray PCCARD Raytheon Raylink/Webgear Aviator PCCard driver sbni ISA/PCI Granch SBNI12 leased line modem driver sbsh PCI Granch SBNI16 SHDSL modem device driver sl TTY slip network interface snc ISA/PCCARD National Semiconductor DP8393X SONIC Ethernet adapter driver sppp TTY point to point protocol network layer for synchronous lines sr ISA/PCI synchronous RISCom/N2 / WANic 400/405 device driver Obviously, if necessary work is done to remove the IFF_NEEDSGIANT requirement from a driver, it will be pulled from the list, and I'll do an IFF_NEEDSGIANT scan before pulling the plug. Drivers will remain in the tree but disconnected for about a month before being removed from HEAD. Thanks greatly to John and others who have worked hard to reduce the size of the list in the last year! The following USB drivers will remain enabled due to on-going USB work that should eliminate IFF_NEEDSGIANT: Name Bus Man page description ---- --- -------------------- axe USB ASIX Electronics AX88172 USB Ethernet driver cdce USB USB Communication Device Class Ethernet driver cue USB CATC USB-EL1210A USB Ethernet driver kue USB Kawasaki LSI KL5KUSB101B USB Ethernet driver rue USB RealTek RTL8150 USB to Fast Ethernet controller rum USB Ralink Technology USB IEEE 802.11a/b/g wireless network device udav USB Davicom DM9601 USB Ethernet driver ural USB Ralink Technology RT2500USB IEEE 802.11 driver zyd USB ZyDAS ZD1211/ZD1211B USB IEEE 802.11b/g wireless network device The following drivers reference IFF_NEEDSGIANT but only when running in an optional non-MPSAFE mode; that optional mode will be removed but the drivers will remain: Name Bus Man page description ---- --- -------------------- ce PCI driver for synchronous Cronyx Tau-PCI/32 WAN adapters cp PCI driver for synchronous Cronyx Tau-PCI WAN adapters ctau ISA driver for synchronous Cronyx Tau WAN adapters cx ISA driver for synchronous/asynchronous Cronyx Sigma WAN adapters Robert N M Watson Computer Laboratory University of Cambridge
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