请教，我的中继卡没有独立的IRQ？

# cat /proc/interrupts
           CPU0       
  0: 2438824691          XT-PIC  timer
  1:        249          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  ohci_hcd
  7:  838309391          XT-PIC  aic7xxx, eth0
  8:          1          XT-PIC  rtc
 10: 2452114699          XT-PIC  aic7xxx, wct4xxp
 11: 2437854709          XT-PIC  wct2xxp
 12:       4470          XT-PIC  i8042
 14:        626          XT-PIC  ide0
NMI:          0 
ERR:          0


# lspci -v
00:00.0 Host bridge: Broadcom CMIC-LE Host Bridge (GC-LE chipset) (rev 33)
        Flags: fast devsel
00:00.1 Host bridge: Broadcom CMIC-LE Host Bridge (GC-LE chipset)
        Flags: fast devsel
00:00.2 Host bridge: Broadcom CMIC-LE Host Bridge (GC-LE chipset)
        Flags: fast devsel
00:04.0 Class ff00: Dell Embedded Remote Access or ERA/O
        Subsystem: Dell Embedded Remote Access or ERA/O
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at feb80000 (32-bit, prefetchable) [size=4K]
        I/O ports at ecf8 
        I/O ports at ece8 
        Expansion ROM at fe000000 [disabled] [size=64K]
        Capabilities: [48] Power Management version 2
00:04.1 Class ff00: Dell Remote Access Card III
        Subsystem: Dell Remote Access Card III
        Flags: medium devsel, IRQ 10
        Memory at fe102000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at ec80 
        Memory at feb00000 (32-bit, prefetchable) [size=512K]
        Capabilities: [48] Power Management version 2
00:04.2 Class ff00: Dell Embedded Remote Access: BMC/SMIC device
        Subsystem: Dell Embedded Remote Access: BMC/SMIC device
        Flags: medium devsel, IRQ 7
        I/O ports at ecf4 
        Capabilities: [48] Power Management version 2
00:0e.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) (prog-if 00 [VGA])
        Subsystem: Dell: Unknown device 0121
        Flags: bus master, VGA palette snoop, stepping, medium devsel, latency 32
        Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
        I/O ports at e800 
        Memory at fe101000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [5c] Power Management version 2
00:0f.0 Host bridge: Broadcom CSB5 South Bridge (rev 93)
        Subsystem: Broadcom CSB5 South Bridge
        Flags: bus master, medium devsel, latency 32
00:0f.1 IDE interface: Broadcom CSB5 IDE Controller (rev 93) (prog-if 82 [Master PriP])
        Subsystem: Broadcom CSB5 IDE Controller
        Flags: bus master, medium devsel, latency 64
        I/O ports at <ignored>
        I/O ports at <ignored>
        I/O ports at <ignored>
        I/O ports at <ignored>
        I/O ports at 08b0 
00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev 05) (prog-if 10 [OHCI])
        Subsystem: Broadcom OSB4/CSB5 OHCI USB Controller
        Flags: bus master, medium devsel, latency 32, IRQ 5
        Memory at fe100000 (32-bit, non-prefetchable) [size=4K]
00:0f.3 ISA bridge: Broadcom CSB5 LPC bridge
        Subsystem: Broadcom: Unknown device 0230
        Flags: bus master, medium devsel, latency 0
00:10.0 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
        Flags: 66Mhz, medium devsel
        Capabilities: [60] PCI-X non-bridge device.
00:10.2 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
        Flags: 66Mhz, medium devsel
        Capabilities: [60] PCI-X non-bridge device.
00:11.0 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
        Flags: 66Mhz, medium devsel
        Capabilities: [60] PCI-X non-bridge device.
00:11.2 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
        Flags: 66Mhz, medium devsel
        Capabilities: [60] PCI-X non-bridge device.
01:06.0 Communication controller: Digium, Inc. Wildcard TE210P (rev 02)
        Subsystem: Unknown device 0003:0000
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at fcf00400 (32-bit, non-prefetchable) 
01:08.0 Communication controller: Digium, Inc. Wildcard TE410P Quad-Span togglable E1/T1/J1 card 3.3v (rev 02)
        Flags: bus master, medium devsel, latency 32, IRQ 10
        Memory at fcf00000 (32-bit, non-prefetchable) 
03:06.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
        Subsystem: Dell: Unknown device 0121
        Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 7
        Memory at fcd10000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] PCI-X non-bridge device.
        Capabilities: [48] Power Management version 2
        Capabilities: [50] Vital Product Data
        Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable-
03:08.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
        Subsystem: Dell: Unknown device 0121
        Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 11
        Memory at fcd00000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] PCI-X non-bridge device.
        Capabilities: [48] Power Management version 2
        Capabilities: [50] Vital Product Data
        Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable-
04:08.0 PCI bridge: Intel Corporation 80303 I/O Processor PCI-to-PCI Bridge (rev 01) (prog-if 00 [Normal decode])
        Flags: bus master, 66Mhz, slow devsel, latency 32
        Bus: primary=04, secondary=05, subordinate=05, sec-latency=32
        I/O behind bridge: 0000c000-0000cfff
        Memory behind bridge: fca00000-fcbfffff
        Capabilities: [68] Power Management version 2
05:06.0 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01)
        Subsystem: Dell: Unknown device 0121
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 10
        BIST result: 00
        I/O ports at cc00 [disabled] 
        Memory at fcaff000 (64-bit, non-prefetchable) [size=4K]
        Expansion ROM at fcb00000 [disabled] [size=128K]
        Capabilities: [dc] Power Management version 2
05:06.1 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01)
        Subsystem: Dell: Unknown device 0121
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 7
        BIST result: 00
        I/O ports at c800 [disabled] 
        Memory at fcafe000 (64-bit, non-prefetchable) [size=4K]
        Expansion ROM at fcb00000 [disabled] [size=128K]
        Capabilities: [dc] Power Management version 2