ed63a7aaef
USB ethernet chip. Adapters that use this chip include the LinkSys USB100TX. There are a few others, but I'm not certain of their availability in the U.S. I used an ADMtek eval board for development. Note that while the ADMtek chip is a 100Mbps device, you can't really get 100Mbps speeds over USB. Regardless, this driver uses miibus to allow speed and duplex mode selection as well as autonegotiation. Building and kldloading the driver as a module is also supported. Note that in order to make this driver work, I had to make what some may consider an ugly hack to sys/dev/usb/usbdi.c. The usbd_transfer() function will use tsleep() for synchronous transfers that don't complete right away. This is a problem since there are times when we need to do sync transfers from an interrupt context (i.e. when reading registers from the MAC via the control endpoint), where tsleep() us a no-no. My hack allows the driver to have the code poll for transfer completion subject to the xfer->timeout timeout rather that calling tsleep(). This hack is controlled by a quirk entry and is only enabled for the ADMtek device. Now, I'm sure there are a few of you out there ready to jump on me and suggest some other approach that doesn't involve a busy wait. The only solution that might work is to handle the interrupts in a kernel thread, where you may have something resembling a process context that makes it okay to tsleep(). This is lovely, except we don't have any mechanism like that now, and I'm not about to implement such a thing myself since it's beyond the scope of driver development. (Translation: I'll be damned if I know how to do it.) If FreeBSD ever aquires such a mechanism, I'll be glad to revisit the driver to take advantage of it. In the meantime, I settled for what I perceived to be the solution that involved the least amount of code changes. In general, the hit is pretty light. Also note that my only USB test box has a UHCI controller: I haven't I don't have a machine with an OHCI controller available. Highlights: - Updated usb_quirks.* to add UQ_NO_TSLEEP quirk for ADMtek part. - Updated usbdevs and regenerated generated files - Updated HARDWARE.TXT and RELNOTES.TXT files - Updated sysinstall/device.c and userconfig.c - Updated kernel configs -- device aue0 is commented out by default - Updated /sys/conf/files - Added new kld module directory
190 lines
7.3 KiB
Plaintext
190 lines
7.3 KiB
Plaintext
# This is loader.conf - a file full of useful variables that you can
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# set to change the default load behavior of your system. You should
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# not edit this file! Put any overrides into one of the
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# loader_conf_files instead and you will be able to update these
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# defaults later without spamming your local configuration information.
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#
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# All arguments must be in double quotes.
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#
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# $FreeBSD$
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##############################################################
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### Basic configuration options ############################
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##############################################################
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exec=".( Loading /boot/defaults/loader.conf ) cr"
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kernel="/kernel"
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kernel_options=""
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userconfig_script_load="NO"
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userconfig_script_name="/boot/kernel.conf"
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userconfig_script_type="userconfig_script"
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loader_conf_files="/boot/loader.conf /boot/loader.conf.local"
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verbose_loading="NO" # Set to YES for verbose loader output
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##############################################################
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### Splash screen configuration ############################
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##############################################################
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splash_bmp_load="NO" # Set this to YES for bmp splash screen!
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splash_pcx_load="NO" # Set this to YES for pcx splash screen!
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vesa_load="NO" # Set this to YES to load the vesa module
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bitmap_load="NO" # Set this to YES if you want splash screen!
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bitmap_name="/boot/splash.bmp" # Set this to the name of the bmp or pcx file
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bitmap_type="splash_image_data"
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##############################################################
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### Loader settings ########################################
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##############################################################
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#autoboot_delay="10" # Delay in seconds before autobooting
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#bootfile="kernel,kernel.old" # Set the default boot file set
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#console="vidconsole" # Set the current console
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#currdev="disk1s1a" # Set the current device
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#module_path="/;/boot;/modules" # Set the module search path
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#prompt="\\${interpret}" # Set the command prompt
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#root_disk_unit="0" # Force the root disk unit number
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#rootdev="disk1s1a" # Set the root filesystem
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##############################################################
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### Kernel settings ########################################
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##############################################################
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#boot_askname="NO" # Prompt the user for the name of the root device
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#boot_ddb="NO" # Instructs the kernel to start in the DDB debugger
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#boot_gdb="NO" # Selects gdb-remote mode for the kernel debugger
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#boot_single="NO" # Start system in single-user mode
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#boot_userconfig="NO" # Run kernel's interactive device configuration program
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#boot_verbose="NO" # Causes extra debugging information to be printed
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#init_path="/sbin/init:/sbin/oinit:/sbin/init.bak:/stand/sysinstall"
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# Sets the list of init candidates
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##############################################################
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### Kernel tunables ########################################
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##############################################################
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#kern.ipc.nmbclusters="" # Set the number of mbuf clusters
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#kern.vm.kmem.size="" # Sets the size of kernel memory (bytes)
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#machdep.pccard.pcic_irq="0" # Assigns PCCARD controller IRQ (0=polled)
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#net.inet.tcp.tcbhashsize="" # Set the value of TCBHASHSIZE
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##############################################################
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### Filesystem and related modules #########################
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##############################################################
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# Filesystems
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cd9660_load="NO" # ISO 9660 filesystem
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coda_load="NO" # CODA filesystem
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fdesc_load="NO" # Filedescriptors filesystem
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kernfs_load="NO" # Kernel filesystem
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mfs_load="NO" # Memory filesystem
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msdos_load="NO" # FAT-12/16/32
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nfs_load="NO" # NFS
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ntfs_load="NO" # NTFS
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null_load="NO" # Null filesystem
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portal_load="NO" # Portal filesystem
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procfs_load="NO" # Process filesystem
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umap_load="NO" # User-id map filesystem
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union_load="NO" # Union filesystem
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# Related stuff
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ccd_load="NO" # Concatenated disk driver
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vinum_load="NO" # Concatenated/mirror/raid driver
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vn_load="NO" # Vnode driver
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##############################################################
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### Screen saver modules ###################################
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##############################################################
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# This is best done in rc.conf
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screensave_load="NO" # Set to YES to load a screensaver module
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screensave_name="green_saver" # Set to the name of the screensaver module
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##############################################################
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### Emulation modules ######################################
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##############################################################
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fpu_load="NO" # Floating point emulation
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gnufpu_load="NO" # GNU floating point emulation
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ibcs2_load="NO" # IBCS2 (SCO) emulation
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ibcs2_coff_load="NO"
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linux_load="NO" # Linux emulation
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svr4_load="NO" # SystemV R4 emulation
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streams_load="NO" # System V streams module
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##############################################################
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### Networking modules #####################################
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##############################################################
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if_disc_load="NO" # Discard device
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if_ppp_load="NO" # Kernel ppp
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if_sl_load="NO" # SLIP
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if_tun_load="NO" # Tunnel driver (user process ppp)
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ipfw_load="NO" # Firewall
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##############################################################
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### Networking drivers #####################################
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##############################################################
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miibus_load="NO" # miibus support, needed for some drivers
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if_dc_load="NO" # DEC/Intel 21143 and various workalikes
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if_fxp_load="NO" # Intel EtherExpress PRO/100B (82557, 82558)
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if_rl_load="NO" # RealTek 8129/8139
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if_sf_load="NO" # Adaptec Duralink PCI (AIC-6915 "starfire")
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if_sis_load="NO" # Silicon Integrated Systems SiS 900/7016
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if_sk_load="NO" # SysKonnect SK-984x series PCI gigabit ethernet
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if_ti_load="NO" # Alteon Networks Tigon 1 and Tigon 2
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if_tl_load="NO" # Texas Instruments TNETE100 ("ThunderLAN")
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if_vr_load="NO" # VIA Rhine I and Rhine II
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if_wb_load="NO" # Winbond W89C840F
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if_xl_load="NO" # 3Com Etherlink XL (3c900, 3c905, 3c905B)
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##############################################################
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### USB modules ############################################
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##############################################################
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usb_load="NO" # USB subsystem
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ugen_load="NO" # USB generic device, if all else fails ...
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uhid_load="NO" # Human Interface Devices
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ukbd_load="NO" # Keyboard
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ulpt_load="NO" # Printer
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ums_load="NO" # Mouse
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umass_load="NO" # Mass Storage Devices
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if_aue_load="NO" # ADMtek USB ethernet
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##############################################################
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### Other modules ##########################################
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##############################################################
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bktr_load="NO" # Brooktree Bt848/Bt878 TV/Video Capture Card
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##############################################################
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### Module loading syntax example ##########################
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##############################################################
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#module_load="YES" # loads module "module"
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#module_name="realname" # uses "realname" instead of "module"
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#module_type="type" # passes "-t type" to load
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#module_flags="flags" # passes "flags" to the module
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#module_before="cmd" # executes "cmd" before loading the module
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#module_after="cmd" # executes "cmd" after loading the module
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#module_error="cmd" # executes "cmd" if load fails
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