Dispositivo non riscosso in lshw

Nel mio computer ho aggiunto una scheda di controllo PCI Express con 2 porte USB3 e 2 porte sata3. ( http://www.ldlc.be/fiche/PB00121886.html ).

Le porte USB funzionano correttamente ma l'HDD collegato alla porta sata non viene visualizzato nei dispositivi.

Ho eseguito lshw e qui il risultato relativo alla scheda PCI:

*-pci:1
            description: PCI bridge
            product: PEX 8604 4-lane, 4-Port PCI Express Gen 2 (5.0 GT/s) Switch
            vendor: PLX Technology, Inc.
            physical id: 5
            bus info: pci@0000:05:05.0
            version: ba
            width: 32 bits
            clock: 33MHz
            capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
            configuration: driver=pcieport
            resources: irq:46 ioport:7000(size=8192) memory:d6100000-d61fffff

    *-ide UNCLAIMED
               description: IDE interface
               physical id: 0
               bus info: pci@0000:07:00.0
               version: 01
               width: 32 bits
               clock: 33MHz
               capabilities: ide msi pm pciexpress cap_list
               configuration: latency=0
               resources: ioport:7000(size=8) ioport:7400(size=4) ioport:7800(size=8) ioport:7c00(size=4) ioport:8000(size=16) memory:d6100000-d61001ff`

Sembra che l'IDE non rivendicato sia il colpevole e che non sia rivendicato perché il sistema non ha trovato alcun driver per esso. Come posso trovare quale driver avrei bisogno per far funzionare quella parte ide?

Finora la mia ricerca su Google per PEX 8604 non ha restituito quasi nulla riguardo a un driver Linux.

EDIT: informazioni aggiuntive

# lspci -nn
00:00.0 Memory controller [0580]: nVidia Corporation CK804 Memory Controller [10de:005e] (rev a3)
00:01.0 ISA bridge [0601]: nVidia Corporation CK804 ISA Bridge [10de:0050] (rev f3)
00:01.1 SMBus [0c05]: nVidia Corporation CK804 SMBus [10de:0052] (rev a2)
00:02.0 USB Controller [0c03]: nVidia Corporation CK804 USB Controller [10de:005a] (rev a2)
00:02.1 USB Controller [0c03]: nVidia Corporation CK804 USB Controller  [10de:005b] (rev a3)
00:04.0 Multimedia audio controller [0401]: nVidia Corporation CK804 AC'97 Audio Controller [10de:0059] (rev a2)
00:06.0 IDE interface [0101]: nVidia Corporation CK804 IDE [10de:0053] (rev f2)
00:07.0 IDE interface [0101]: nVidia Corporation CK804 Serial ATA Controller [10de:0054] (rev f3)
00:08.0 IDE interface [0101]: nVidia Corporation CK804 Serial ATA Controller [10de:0055] (rev f3)
00:09.0 PCI bridge [0604]: nVidia Corporation CK804 PCI Bridge [10de:005c] (rev f2)
00:0a.0 Bridge [0680]: nVidia Corporation CK804 Ethernet Controller [10de:0057] (rev f3)
00:0b.0 PCI bridge [0604]: nVidia Corporation CK804 PCIE Bridge [10de:005d] (rev f3)
00:0c.0 PCI bridge [0604]: nVidia Corporation CK804 PCIE Bridge [10de:005d] (rev f3)
00:0d.0 PCI bridge [0604]: nVidia Corporation CK804 PCIE Bridge [10de:005d] (rev f3)
00:0e.0 PCI bridge [0604]: nVidia Corporation CK804 PCIE Bridge [10de:005d] (rev a3)
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration [1022:1100]
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map [1022:1101]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller [1022:1102]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control [1022:1103]
01:00.0 VGA compatible controller [0300]: nVidia Corporation G98 [GeForce 8400 GS] [10de:06e4] (rev a1)
04:00.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8604 4-lane, 4-Port PCI Express Gen 2 (5.0 GT/s) Switch [10b5:8604] (rev ba)
05:01.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8604 4-lane, 4-Port PCI Express Gen 2 (5.0 GT/s) Switch [10b5:8604] (rev ba)
05:05.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8604 4-lane, 4-Port PCI Express Gen 2 (5.0 GT/s) Switch [10b5:8604] (rev ba)
06:00.0 USB Controller [0c03]: Device [1b21:1040]
07:00.0 IDE interface [0101]: Device [1b21:0611] (rev 01)
08:06.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10)
08:0b.0 FireWire (IEEE 1394) [0c00]: Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) [104c:8023]
08:0c.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller [11ab:4320] (rev 13)


# lspci -v -s 5:5
05:05.0 PCI bridge: PLX Technology, Inc. PEX 8604 4-lane, 4-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=05, secondary=07, subordinate=07, sec-latency=0
    I/O behind bridge: 00007000-00008fff
    Memory behind bridge: d6100000-d61fffff
    Capabilities: [40] Power Management version 3
    Capabilities: [48] MSI: Enable+ Count=1/4 Maskable+ 64bit+
    Capabilities: [68] Express Downstream Port (Slot+), MSI 00
    Capabilities: [a4] Subsystem: PLX Technology, Inc. PEX 8604 4-lane, 4-Port PCI Express Gen 2 (5.0 GT/s) Switch
    Capabilities: [100] Device Serial Number [EDITED]
    Capabilities: [fb4] Advanced Error Reporting
    Capabilities: [148] Virtual Channel
    Capabilities: [520] Access Control Services
    Capabilities: [950] Vendor Specific Information: ID=0001 Rev=0 Len=010 <?>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

# lspci -v -s 7:0
07:00.0 IDE interface: Device 1b21:0611 (rev 01) (prog-if 85 [Master SecO PriO])
    Subsystem: Device 1b21:1060
    Flags: fast devsel, IRQ 18
    I/O ports at 7000 [size=8]
    I/O ports at 7400 [size=4]
    I/O ports at 7800 [size=8]
    I/O ports at 7c00 [size=4]
    I/O ports at 8000 [size=16]
    Memory at d6100000 (32-bit, non-prefetchable) [size=512]
    Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
    Capabilities: [78] Power Management version 3
    Capabilities: [80] Express Legacy Endpoint, MSI 00
    Capabilities: [100] Virtual Channel

Ho trovato la soluzione. Il dispositivo non è stato reclamato perché non era noto correttamente dal kernel.

Utilizzando un kernel 3.5, il dispositivo è stato elencato come di seguito:

*-ide UNCLAIMED
               description: IDE interface
               product: ASM1061 SATA IDE Controller
               vendor: ASMedia Technology Inc.
               physical id: 0
               bus info: pci@0000:07:00.0
               version: 01
               width: 32 bits
               clock: 33MHz
               capabilities: ide msi pm pciexpress cap_list
               configuration: latency=0
               resources: ioport:7000(size=8) ioport:7400(size=4) ioport:7800(size=8) ioport:7c00(size=4) ioport:8000(size=16) memory:d6100000-d6100

ma era ancora non reclamato.

Durante la ricerca del dispositivo [1b21: 0611] ho trovato un post nella mailing list del kernel che ne parlava. Indica che il kernel non identifica correttamente il dispositivo come dispositivo ahci e propone una patch al kernel.

--- a/drivers/ata/ahci.c    2012-05-20 23:56:54.000000000 +0200
+++ b/drivers/ata/ahci.c    2012-05-31 14:51:01.577045033 +0200
@@ -391,6 +391,9 @@
{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },   /* PDC42819 */

/* Asmedia */
+ { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM106x */
+ { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM106x */
+ { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },   /* ASM1061 */

/* Generic, PCI class code for AHCI */

Ho applicato la patch al sorgente del kernel 3.5 e ricompilato e ora funziona. Per informazione, la patch è inclusa nel kernel nella versione 3.6 e successive.