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rl(4) driver and put it in a new re(4) driver. The re(4) driver shares the if_rlreg.h file with rl(4) but is a separate module. (Ultimately I may change this. For now, it's convenient.) rl(4) has been modified so that it will never attach to an 8139C+ chip, leaving it to re(4) instead. Only re(4) has the PCI IDs to match the 8169/8169S/8110S gigE chips. if_re.c contains the same basic code that was originally bolted onto if_rl.c, with the following updates: - Added support for jumbo frames. Currently, there seems to be a limit of approximately 6200 bytes for jumbo frames on transmit. (This was determined via experimentation.) The 8169S/8110S chips apparently are limited to 7.5K frames on transmit. This may require some more work, though the framework to handle jumbo frames on RX is in place: the re_rxeof() routine will gather up frames than span multiple 2K clusters into a single mbuf list. - Fixed bug in re_txeof(): if we reap some of the TX buffers, but there are still some pending, re-arm the timer before exiting re_txeof() so that another timeout interrupt will be generated, just in case re_start() doesn't do it for us. - Handle the 'link state changed' interrupt - Fix a detach bug. If re(4) is loaded as a module, and you do tcpdump -i re0, then you do 'kldunload if_re,' the system will panic after a few seconds. This happens because ether_ifdetach() ends up calling the BPF detach code, which notices the interface is in promiscuous mode and tries to switch promisc mode off while detaching the BPF listner. This ultimately results in a call to re_ioctl() (due to SIOCSIFFLAGS), which in turn calls re_init() to handle the IFF_PROMISC flag change. Unfortunately, calling re_init() here turns the chip back on and restarts the 1-second timeout loop that drives re_tick(). By the time the timeout fires, if_re.ko has been unloaded, which results in a call to invalid code and blows up the system. To fix this, I cleared the IFF_UP flag before calling ether_ifdetach(), which stops the ioctl routine from trying to reset the chip. - Modified comments in re_rxeof() relating to the difference in RX descriptor status bit layout between the 8139C+ and the gigE chips. The layout is different because the frame length field was expanded from 12 bits to 13, and they got rid of one of the status bits to make room. - Add diagnostic code (re_diag()) to test for the case where a user has installed a broken 32-bit 8169 PCI NIC in a 64-bit slot. Some NICs have the REQ64# and ACK64# lines connected even though the board is 32-bit only (in this case, they should be pulled high). This fools the chip into doing 64-bit DMA transfers even though there is no 64-bit data path. To detect this, re_diag() puts the chip into digital loopback mode and sets the receiver to promiscuous mode, then initiates a single 64-byte packet transmission. The frame is echoed back to the host, and if the frame contents are intact, we know DMA is working correctly, otherwise we complain loudly on the console and abort the device attach. (At the moment, I don't know of any way to work around the problem other than physically modifying the board, so until/unless I can think of a software workaround, this will have do to.) - Created re(4) man page - Modified rlphy.c to allow re(4) to attach as well as rl(4). Note that this code works for the sample 8169/Marvell 88E1000 NIC that I have, but probably won't work for the 8169S/8110S chips. RealTek has sent me some sample NICs, but they haven't arrived yet. I will probably need to add an rlgphy driver to handle the on-board PHY in the 8169S/8110S (it needs special DSP initialization).
154 lines
5.3 KiB
Plaintext
154 lines
5.3 KiB
Plaintext
#
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# GENERIC -- Generic kernel configuration file for FreeBSD/ia64
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#
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# For more information on this file, please read the handbook section on
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# Kernel Configuration Files:
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#
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# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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# device lines is also present in the ../../conf/NOTES and NOTES files.
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# If you are in doubt as to the purpose or necessity of a line, check
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# first in NOTES.
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#
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# For hardware specific information check HARDWARE.TXT
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#
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# $FreeBSD$
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machine ia64
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cpu ITANIUM
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ident GENERIC
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makeoptions DEBUG=-g # Build kernel with debug information.
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options CD9660 # ISO 9660 Filesystem
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options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
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options DDB # Enable the kernel debugger
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options FFS # Berkeley Fast Filesystem
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options KTRACE # ktrace(1) syscall trace support
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options MD_ROOT # MD usable as root device
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options MSDOSFS # MSDOS Filesystem
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options NFSCLIENT # Network Filesystem Client
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options NFSSERVER # Network Filesystem Server
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options NFS_ROOT # NFS usable as root device
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options PROCFS # Process filesystem (/proc)
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options PSEUDOFS # Pseudo-filesystem framework
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options SCHED_4BSD # 4BSD scheduler
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options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
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#options SMP # SMP support
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options SOFTUPDATES # Enable FFS soft updates support
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options SYSVMSG # SYSV-style message queues
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options SYSVSEM # SYSV-style semaphores
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options SYSVSHM # SYSV-style shared memory
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options UFS_ACL # Support for access control lists
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options UFS_DIRHASH # Hash-based directory lookup scheme
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options _KPOSIX_PRIORITY_SCHEDULING # Posix P1003_1B RT extensions
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# Various "busses"
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device acpi # ACPI support (mandatory)
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device firewire # FireWire bus code
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device miibus # MII bus support (ethernet)
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device pci # PCI bus support
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device scbus # SCSI bus (required for SCSI)
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device usb # USB Bus (required for USB)
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# ATA and ATAPI devices
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device ata # ATA controller
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device atadisk # ATA disk drives
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device atapicd # ATAPI CDROM drives
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device atapifd # ATAPI floppy drives
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device ataraid # ATA RAID drives
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# SCSI Controllers
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device ahc # AHA2940 and AIC7xxx devices
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device ahd # AHA39320/29320 and AIC79xx devices
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device isp # Qlogic family
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device mpt # LSI-Logic MPT-Fusion
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device sym # NCR/Symbios Logic
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# RAID controllers interfaced to the SCSI subsystem
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device asr # DPT SmartRAID V, VI and Adaptec RAID
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device ciss # Compaq Smart RAID 5*
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device dpt # DPT Smartcache III, IV
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device iir # Intel Integrated RAID
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device mly # Mylex AcceleRAID/eXtremeRAID
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# SCSI peripherals
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device cd # CD-ROM, DVD-ROM etc.
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device ch # Media changer
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device da # Direct Access (ie disk)
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device pass # Passthrough (direct SCSI access)
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device sa # Sequential Access (ie tape)
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device ses # Environmental Services (and SAF-TE)
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# RAID controllers
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device amr # AMI MegaRAID
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device ida # Compaq Smart RAID
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device mlx # Mylex DAC960 family
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# USB host controllers and peripherals
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device ehci # EHCI host controller
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device ohci # OHCI PCI->USB interface
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device ugen # Generic device
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device uhci # UHCI PCI->USB interface
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device uhid # Human Interface Devices
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device ukbd # Keyboard
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device ulpt # Printer
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device umass # Disks/Mass storage (need scbus & da)
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device ums # Mouse
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# atkbdc0 controls both the keyboard and the PS/2 mouse
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device atkbdc # AT keyboard controller
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device atkbd # AT keyboard
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device psm # PS/2 mouse
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# PCI Ethernet NICs.
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device de # DEC/Intel DC21x4x (``Tulip'')
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device em # Intel PRO/1000 adapter Gigabit Ethernet Card
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device txp # 3Com 3cR990 (``Typhoon'')
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device vx # 3Com 3c590, 3c595 (``Vortex'')
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# PCI Ethernet NICs that use the common MII bus controller code.
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device bge # Broadcom BCM570xx Gigabit Ethernet
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device dc # DEC/Intel 21143 and various workalikes
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device fxp # Intel EtherExpress PRO/100B (82557, 82558)
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device pcn # AMD Am79C97x PCI 10/100 NICs
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device re # RealTek 8139C+/8169/8169S/8110S
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device rl # RealTek 8129/8139
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device sf # Adaptec AIC-6915 (``Starfire'')
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device sis # Silicon Integrated Systems SiS 900/SiS 7016
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device xl # 3Com 3c90x ("Boomerang", "Cyclone")
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# USB Ethernet
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device aue # ADMtek USB ethernet
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device cue # CATC USB ethernet
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device kue # Kawasaki LSI USB ethernet
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# FireWire support
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device sbp # SCSI over FireWire (need scbus & da)
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# Various (pseudo) devices
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device ether # Ethernet support
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device faith # IPv6-to-IPv4 relaying (translation)
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device gif # IPv6 and IPv4 tunneling
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device loop # Network loopback
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device md # Memory "disks"
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device pty # Pseudo-ttys (telnet etc)
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device puc # Multi I/O cards and multi-channel UARTs
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device random # Entropy device
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device sc # System console
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device tun # Packet tunnel.
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device uart # Serial port (UART)
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device vga # VGA video card driver
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# The `bpf' device enables the Berkeley Packet Filter.
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# Be aware of the administrative consequences of enabling this!
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device bpf # Berkeley packet filter
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