Date: Thu, 06 Dec 2007 15:22:37 -0800 From: Sean Bruno <sbruno@miralink.com> To: freebsd-firewire@freebsd.org, simokawa@FreeBSD.ORG Cc: freebsd-scsi@freebsd.org Subject: [PATCH] src/sys/dev/sbp_targ.c src/sys/cam/cam_ccb.h Message-ID: <4758843D.2040409@miralink.com>
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Hidetoshi:
Here are some patches I came up with that update sbp_targ to work with
FreeBSD 6. I added a new XPORT type for FireWire, added a no op for
XPT_SET_TRAN_SETTINGS and coded(stolen from sbp.c) to do "stuff". I've
added a couple of printf's for my own logging, but they are useful for
others.
I wrote a small shell script that I'm using with my testing(see attached
start_firewire.sh).
I've attached my kernel configuration for your review(see attached file
BRUNO).
I've also noted a witness error in sbp_targ that looks like a Giant failure:
pci0: driver
added
found-> vendor=0x8086, dev=0x27d8,
revid=0x01
bus=0, slot=27,
func=0
class=04-03-00, hdrtype=0x00,
mfdev=0
cmdreg=0x0006, statreg=0x0010, cachelnsz=16
(dwords)
lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0
ns)
intpin=a,
irq=16
powerspec 2 supports D0 D3 current
D0
MSI supports 1 message, 64
bit
pci0:27:0: reprobing on driver
added
found-> vendor=0x8086, dev=0x27da,
revid=0x01
bus=0, slot=31,
func=3
class=0c-05-00, hdrtype=0x00,
mfdev=0
cmdreg=0x0001, statreg=0x0280, cachelnsz=0
(dwords)
lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0
ns)
intpin=b,
irq=19
pci0:31:3: reprobing on driver
added
pci1: driver
added
found-> vendor=0x17cc, dev=0x2280,
revid=0x01
bus=1, slot=9,
func=0
class=0c-03-fe, hdrtype=0x00,
mfdev=0
cmdreg=0x0006, statreg=0x0200, cachelnsz=16
(dwords)
lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0
ns)
intpin=a,
irq=17
pci1:9:0: reprobing on driver
added
found-> vendor=0x1106, dev=0x3044,
revid=0xc0
bus=1, slot=10,
func=0
class=0c-00-10, hdrtype=0x00,
mfdev=0
cmdreg=0x0007, statreg=0x0210, cachelnsz=16
(dwords)
lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x20 (8000
ns)
intpin=a,
irq=18
powerspec 2 supports D0 D2 D3 current
D0
pci1:10:0: reprobing on driver
added
fwohci0: <VIA Fire II (VT6306)> port 0xef00-0xef7f mem
0xfdeff000-0xfdeff7ff ir1
fwohci0: Reserved 0x800 bytes for rid 0x10 type 3 at
0xfdeff000
fwohci0:
[GIANT-LOCKED]
fwohci0: OHCI version 1.0
(ROM=1)
fwohci0: No. of Isochronous channels is
4.
fwohci0: EUI64
00:00:00:30:1b:44:b6:f5
fwohci0: Phy 1394a available S400, 2
ports.
fwohci0: Link S400, max_rec 2048
bytes.
firewire0: <IEEE1394(FireWire) bus> on
fwohci0
fwohci0: Initiate bus
reset
fwohci0: BUS
reset
fwohci0: node_id=0x8800ffc0, gen=1, non CYCLEMASTER
mode
firewire0: 2 nodes, maxhop <= 1, cable IRM =
1
sbp_targ0: <SBP-2/SCSI over FireWire target mode> on
firewire0
Blackhole set due to target id ==
-1
(targbh0:sbp_targ0:0:-1:-1): Lun now enabled for target
mode
fwohci0: Initiate bus
reset
fwohci0: BUS
reset
fwohci0: node_id=0xc800ffc1, gen=2, CYCLEMASTER
mode
firewire0: 2 nodes, maxhop <= 1, cable IRM = 1
(me)
firewire0: bus manager 1
(me)
lstate for lun is invalid, target(0),
lun(0)
lstate for lun is invalid, target(0),
lun(0)
lstate for lun is invalid, target(0),
lun(0)
lstate for lun is invalid, target(0),
lun(0)
lstate for lun is invalid, target(0),
lun(0)
lock order reversal: (sleepable after
non-sleepable)
1st 0xc08bd760 targ global (targ global) @
cam/scsi/scsi_target.c:418
2nd 0xc08c5ba0 kernel environment (kernel environment) @
kern/subr_hints.c:117
KDB: stack
backtrace:
kdb_backtrace(0,ffffffff,c08d4b60,c08d5fb0,c089c28c,...) at
kdb_backtrace+0x29
witness_checkorder(c08c5ba0,1,c08412ab,75) at
witness_checkorder+0x578
_sx_slock(c08c5ba0,0,c08412a2,75,0,...) at
_sx_slock+0x56
res_find(d53189f4,d53189c8,c08192ca,0,0,0,0,0,d53189cc,0,0,0) at
res_find+0x193
resource_find(d53189f4,d53189c8,c08192ca,0,0,0,0,0,d53189cc,0,0,0) at
resource_b
resource_find_dev(d53189f4,c08192ca,d53189f8,0,0) at
resource_find_dev+0x32
camperiphunit(c086bac4,0,0,0,1,...) at
camperiphunit+0xd3
cam_periph_alloc(c0464b10,0,c0464b2c,c0464dec,c08192ca,0,c33567c0,c046569c,0,c31
targenable(c38a6c00,c33567c0,0,0,c38a6d40,0,c08192cf,100) at
targenable+0x122
targioctl(c3aa6e00,80144305,c341cd20,3,c33df900,c08c75c0,0,c083aa71,131)
at tar5
giant_ioctl(c3aa6e00,80144305,c341cd20,3,c33df900,...) at
giant_ioctl+0x33
devfs_ioctl_f(c3836090,80144305,c341cd20,c3825b00,c33df900) at
devfs_ioctl_f+0xf
ioctl(c33df900,d5318d04) at
ioctl+0x396
syscall(3b,3b,3b,11,f,...) at
syscall+0x22f
Xint0x80_syscall() at
Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x28150a23, esp =
0xbfbfd11c, ebp-
lstate for lun is invalid, target(0),
lun(0)
(noperiph:sbp_targ0:0:0:0): Lun now enabled for target
mode
fwohci0: Initiate bus
reset
fwohci0: BUS
reset
sbp_targ_post_busreset: already
freezed
Unknown service addr 0xffff:0xf0000234 RREQQ(4) src=0xffc0
data=b8ca5284
fw_rcv: cannot respond(bus
reset)!
fwohci0: node_id=0xc800ffc1, gen=3, CYCLEMASTER
mode
firewire0: 2 nodes, maxhop <= 1, cable IRM = 1
(me)
firewire0: bus manager 1
(me)
Unknown service addr 0xffff:0xf0000234 RREQQ(4) src=0xffc0
data=8ed45284
fwohci0: BUS
reset
sbp_targ_post_busreset: already
freezed
fwohci0: node_id=0x8800ffc0, gen=4, non CYCLEMASTER
mode
firewire0: 2 nodes, maxhop <= 1, cable IRM =
1
firewire0: bus manager 0
(me)
Unknown service addr 0xffff:0xf0000234 RREQQ(4) src=0xffc1
data=f2dc5284
firewire0: New S400 device
ID:0011060000004c2f
Unknown service addr 0xffff:0xf0000210 WREQQ(0) src=0xffc1
data=f
panic: knlist not locked, but should
be
KDB: enter:
panic
[thread pid 16 tid 100013
]
Stopped at kdb_enter+0x2b:
nop
db>
trace
Tracing pid 16 tid 100013 td
0xc32e3000
kdb_enter(c083ef5a) at
kdb_enter+0x2b
panic(c083ba9a,c38a6c00,c3ae1d00,0,d3ff3c88,...) at
panic+0xbb
knote(c38a6c38,0,1,c38a6c2c,4c,...) at
knote+0x2e
notify_user(c38a6c00,c38a6d40,0,c08192cf,334) at
notify_user+0x1f
targdone(c3826500,c3ae1d00) at
targdone+0xde
camisr(c08bd678) at
camisr+0x251
ithread_execute_handlers(c32e1c90,c3364100) at
ithread_execute_handlers+0xe6
ithread_loop(c31f99d0,d3ff3d38,c31f99d0,c05b1adc,0,...) at
ithread_loop+0x66
fork_exit(c05b1adc,c31f99d0,d3ff3d38) at
fork_exit+0xa0
fork_trampoline() at
fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xd3ff3d6c, ebp = 0
---
db>
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Index: cam/cam_ccb.h
===================================================================
--- cam/cam_ccb.h (revision 4801)
+++ cam/cam_ccb.h (working copy)
@@ -224,7 +224,8 @@
XPORT_USB, /* Universal Serial Bus */
XPORT_PPB, /* Parallel Port Bus */
XPORT_ATA, /* AT Attachment */
- XPORT_SAS /* Serial Attached SCSI */
+ XPORT_SAS, /* Serial Attached SCSI */
+ XPORT_FW /* FireWire 1394a/b */
} cam_xport;
#define PROTO_VERSION_UNKNOWN (UINT_MAX - 1)
Index: dev/firewire/sbp_targ.c
===================================================================
--- dev/firewire/sbp_targ.c (revision 4801)
+++ dev/firewire/sbp_targ.c (working copy)
@@ -363,8 +363,11 @@
*lstate = sc->lstate[lun];
- if (notfound_failure != 0 && *lstate == NULL)
+ if (notfound_failure != 0 && *lstate == NULL) {
+ printf("lstate for lun is invalid, target(%d), lun(%d)\n",
+ ccb->ccb_h.target_id, lun);
return (CAM_PATH_INVALID);
+ }
return (CAM_REQ_CMP);
}
@@ -402,10 +405,13 @@
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
- if (ccb->ccb_h.target_id == CAM_TARGET_WILDCARD)
+ if (ccb->ccb_h.target_id == CAM_TARGET_WILDCARD) {
sc->black_hole = lstate;
- else
+ printf("Blackhole set due to target id == %d\n",
+ ccb->ccb_h.target_id);
+ } else
sc->lstate[ccb->ccb_h.target_lun] = lstate;
+
memset(lstate, 0, sizeof(*lstate));
lstate->sc = sc;
status = xpt_create_path(&lstate->path, /*periph*/NULL,
@@ -433,6 +439,7 @@
if (lstate == NULL) {
ccb->ccb_h.status = CAM_LUN_INVALID;
+ printf("Invalid lstate for this target\n");
return;
}
ccb->ccb_h.status = CAM_REQ_CMP;
@@ -448,6 +455,7 @@
}
if (ccb->ccb_h.status != CAM_REQ_CMP) {
+ printf("status != CAM_REQ_CMP\n");
return;
}
@@ -1023,6 +1031,7 @@
cpi->target_sprt = PIT_PROCESSOR
| PIT_DISCONNECT
| PIT_TERM_IO;
+ cpi->transport = XPORT_FW;
cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
cpi->hba_eng_cnt = 0;
cpi->max_target = 7; /* XXX */
@@ -1061,8 +1070,37 @@
xpt_done(ccb);
break;
}
+ case XPT_SET_TRAN_SETTINGS:
+ ccb->ccb_h.status = CAM_REQ_INVALID;
+ xpt_done(ccb);
+ break;
+ case XPT_GET_TRAN_SETTINGS:
+ {
+ struct ccb_trans_settings *cts = &ccb->cts;
+ struct ccb_trans_settings_scsi *scsi =
+ &cts->proto_specific.scsi;
+ struct ccb_trans_settings_spi *spi =
+ &cts->xport_specific.spi;
+
+ cts->protocol = PROTO_SCSI;
+ cts->protocol_version = SCSI_REV_2;
+ cts->transport = XPORT_SPI; /* should have a FireWire */
+ cts->transport_version = 2;
+ spi->valid = CTS_SPI_VALID_DISC;
+ spi->flags = CTS_SPI_FLAGS_DISC_ENB;
+ scsi->valid = CTS_SCSI_VALID_TQ;
+ scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
+#if 0
+ printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:\n",
+ device_get_nameunit(sc->fd.dev),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
+#endif
+ cts->ccb_h.status = CAM_REQ_CMP;
+ xpt_done(ccb);
+ break;
+ }
default:
- printf("%s: unknown function %d\n",
+ printf("%s: unknown function 0x%x\n",
__func__, ccb->ccb_h.func_code);
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
Index: i386/conf/MIRALINK
===================================================================
--- i386/conf/MIRALINK (revision 4801)
+++ i386/conf/MIRALINK (working copy)
@@ -12,7 +12,8 @@
#hints "GENERIC.hints" # Default places to look for devices.
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
-makeoptions MODULES_OVERRIDE="odbp acpi ispfw"
+makeoptions MODULES_OVERRIDE="odbp acpi ispfw firewire"
+#makeoptions MODULES_OVERRIDE="odbp acpi ispfw"
#makeoptions MODULES_OVERRIDE=""
options SCHED_4BSD # 4BSD scheduler
@@ -48,16 +49,17 @@
options SC_HISTORY_SIZE=5000
options CONSPEED=115200
options BREAK_TO_DEBUGGER
+options VFS_AIO
# The following options will severely impact performance but
# should help us to catch errors in our port to 6.x. Once
# we achieve stability, they should be disabled.
-options INVARIANT_SUPPORT
-options INVARIANTS
-options WITNESS
+#options INVARIANT_SUPPORT
+#options INVARIANTS
+#options WITNESS
#options WITNESS_KDB # Drop into kdb on a lock order reversal
-options WITNESS_SKIPSPIN
+#options WITNESS_SKIPSPIN
# MIRALINK ODBP Target Driver debugger logging.
# 1 = enable
@@ -77,6 +79,7 @@
#device fdc
device targbh # Enable targ module
+device targ
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
@@ -296,7 +299,7 @@
#device rue # RealTek RTL8150 USB Ethernet
# FireWire support
-device firewire # FireWire bus code
-device sbp # SCSI over FireWire (Requires scbus and da)
-device sbp_targ # Firewire SCSI Target Mode
+#device firewire # FireWire bus code
+#device sbp # SCSI over FireWire (Requires scbus and da)
+#device sbp_targ # Firewire SCSI Target Mode
#device fwe # Ethernet over FireWire (non-standard!)
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filename="BRUNO"
#
# BRUNO
#
# From:
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.429.2.14 2007/03/27 02:33:00 yongari Exp $
machine i386
cpu I686_CPU
ident BRUNO
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
makeoptions MODULES_OVERRIDE="acpi ispfw firewire"
#makeoptions MODULES_OVERRIDE="acpi ispfw"
#makeoptions MODULES_OVERRIDE=""
options SCHED_4BSD # 4BSD scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
#options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
options MD_ROOT # MD is a potential root device
options NFSCLIENT # Network Filesystem Client
options NFSSERVER # Network Filesystem Server
options NFS_ROOT # NFS usable as /, requires NFSCLIENT
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options SCSI_DELAY=500 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options ADAPTIVE_GIANT # Giant mutex is adaptive.
options DDB
options KDB
options SC_HISTORY_SIZE=5000
options CONSPEED=115200
options BREAK_TO_DEBUGGER
options VFS_AIO
# The following options will severely impact performance but
# should help us to catch errors in our port to 6.x. Once
# we achieve stability, they should be disabled.
options INVARIANT_SUPPORT
options INVARIANTS
options WITNESS
#options WITNESS_KDB # Drop into kdb on a lock order reversal
options WITNESS_SKIPSPIN
device apic # I/O APIC
device acpi
device ispfw
device iscsi_initiator
# Bus support.
device pci
# Floppy drives
#device fdc
device targbh # Enable targ module
device targ
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
device atapifd # ATAPI floppy drives
device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
# SCSI Controllers
device ahb # EISA AHA1742 family
device ahc # AHA2940 and onboard AIC7xxx devices
options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
options AHC_TMODE_ENABLE=0xFFFF
device ahd # AHA39320/29320 and onboard AIC79xx devices
options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
device amd # AMD 53C974 (Tekram DC-390(T))
device isp # Qlogic family
#device ispfw # Firmware for QLogic HBAs- normally a module
options ISP_TARGET_MODE=0x0001
#device mpt # LSI-Logic MPT-Fusion
#device ncr # NCR/Symbios Logic
#device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
#device trm # Tekram DC395U/UW/F DC315U adapters
#device adv # Advansys SCSI adapters
#device adw # Advansys wide SCSI adapters
#device aha # Adaptec 154x SCSI adapters
#device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
#device bt # Buslogic/Mylex MultiMaster SCSI adapters
#device ncv # NCR 53C500
#device nsp # Workbit Ninja SCSI-3
#device stg # TMC 18C30/18C50
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device ch # SCSI media changers
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)
# RAID controllers interfaced to the SCSI subsystem
#device amr # AMI MegaRAID
#device arcmsr # Areca SATA II RAID
#device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device ciss # Compaq Smart RAID 5*
#device dpt # DPT Smartcache III, IV - See NOTES for options
#device hptmv # Highpoint RocketRAID 182x
#device rr232x # Highpoint RocketRAID 232x
#device iir # Intel Integrated RAID
#device ips # IBM (Adaptec) ServeRAID
#device mly # Mylex AcceleRAID/eXtremeRAID
#device twa # 3ware 9000 series PATA/SATA RAID
# RAID controllers
#device aac # Adaptec FSA RAID
#device aacp # SCSI passthrough for aac (requires CAM)
#device ida # Compaq Smart RAID
#device mfi # LSI MegaRAID SAS
#device mlx # Mylex DAC960 family
#device pst # Promise Supertrak SX6000
#device twe # 3ware ATA RAID
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
device kbdmux # keyboard multiplexer
device vga # VGA video card driver
device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console
device sc
# Enable this for the pcvt (VT220 compatible) console driver
#device vt
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
device agp # support several AGP chipsets
# Power management support (see NOTES for more options)
#device apm
# Add suspend/resume support for the i8254.
device pmtimer
# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
#device cbb # cardbus (yenta) bridge
#device pccard # PC Card (16-bit) bus
#device cardbus # CardBus (32-bit) bus
# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports
# Parallel port
#device ppc
#device ppbus # Parallel port bus (required)
#device lpt # Printer
#device plip # TCP/IP over parallel
#device ppi # Parallel port interface device
#device vpo # Requires scbus and da
# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device puc
# PCI Ethernet NICs.
#device de # DEC/Intel DC21x4x (``Tulip'')
device em # Intel PRO/1000 adapter Gigabit Ethernet Card
#device ixgb # Intel PRO/10GbE Ethernet Card
#device txp # 3Com 3cR990 (``Typhoon'')
#device vx # 3Com 3c590, 3c595 (``Vortex'')
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
#device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
#device dc # DEC/Intel 21143 and various workalikes
#device fxp # Intel EtherExpress PRO/100B (82557, 82558)
#device lge # Level 1 LXT1001 gigabit Ethernet
#device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
#device nge # NatSemi DP83820 gigabit Ethernet
#device nve # nVidia nForce MCP on-board Ethernet Networking
#device pcn # AMD Am79C97x PCI 10/100(precedence over 'lnc')
#device re # RealTek 8139C+/8169/8169S/8110S
#device rl # RealTek 8129/8139
#device sf # Adaptec AIC-6915 (``Starfire'')
device sis # Silicon Integrated Systems SiS 900/SiS 7016
device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
#device ste # Sundance ST201 (D-Link DFE-550TX)
#device stge # Sundance/Tamarack TC9021 gigabit Ethernet
#device ti # Alteon Networks Tigon I/II gigabit Ethernet
#device tl # Texas Instruments ThunderLAN
#device tx # SMC EtherPower II (83c170 ``EPIC'')
#device vge # VIA VT612x gigabit Ethernet
#device vr # VIA Rhine, Rhine II
#device wb # Winbond W89C840F
#device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs. pccard NICs included.
#device cs # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
#device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
#device ex # Intel EtherExpress Pro/10 and Pro/10+
#device ep # Etherlink III based cards
#device fe # Fujitsu MB8696x based cards
#device ie # EtherExpress 8/16, 3C507, StarLAN 10 etc.
#device lnc # NE2100, NE32-VL Lance Ethernet cards
#device sn # SMC's 9000 series of Ethernet chips
#device xe # Xircom pccard Ethernet
# Wireless NIC cards
#device wlan # 802.11 support
#device wlan_wep # 802.11 WEP support
#device wlan_ccmp # 802.11 CCMP support
#device wlan_tkip # 802.11 TKIP support
#device an # Aironet 4500/4800 802.11 wireless NICs.
#device ath # Atheros pci/cardbus NIC's
#device ath_hal # Atheros HAL (Hardware Access Layer)
#device ath_rate_sample # SampleRate tx rate control for ath
#device awi # BayStack 660 and others
#device ral # Ralink Technology RT2500 wireless NICs.
#device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device wl # Older non 802.11 Wavelan wireless NIC.
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
device sl # Kernel SLIP
device ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
device faith # IPv6-to-IPv4 relaying (translation)
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device ehci # EHCI PCI->USB interface (USB 2.0)
device usb # USB Bus (required)
##device udbp # USB Double Bulk Pipe devices
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
#device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
#device ums # Mouse
#device ural # Ralink Technology RT2500USB wireless NICs
#device urio # Diamond Rio 500 MP3 player
#device uscanner # Scanners
# USB Ethernet, requires miibus
#device aue # ADMtek USB Ethernet
#device axe # ASIX Electronics USB Ethernet
#device cdce # Generic USB over Ethernet
#device cue # CATC USB Ethernet
#device kue # Kawasaki LSI USB Ethernet
#device rue # RealTek RTL8150 USB Ethernet
# FireWire support
#device firewire # FireWire bus code
#device sbp # SCSI over FireWire (Requires scbus and da)
#device sbp_targ # Firewire SCSI Target Mode
#device fwe # Ethernet over FireWire (non-standard!)
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