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/linux-2.6.39/Documentation/PCI/
DMSI-HOWTO.txt1 The MSI Driver Guide HOWTO
13 the advantages of using MSI over traditional interrupt mechanisms, how
14 to change your driver to use MSI or MSI-X and some basic diagnostics to
23 The MSI capability was first specified in PCI 2.2 and was later enhanced
24 in PCI 3.0 to allow each interrupt to be masked individually. The MSI-X
26 per device than MSI and allows interrupts to be independently configured.
28 Devices may support both MSI and MSI-X, but only one can be enabled at
67 driver has to set up the device to use MSI or MSI-X. Not all machines
73 To support MSI or MSI-X, the kernel must be built with the CONFIG_PCI_MSI
79 4.2 Using MSI
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D00-INDEX3 MSI-HOWTO.txt
4 - the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
DPCIEBUS-HOWTO.txt164 6.1 MSI Vector Resource
166 The MSI capability structure enables a device software driver to call
167 pci_enable_msi to request MSI based interrupts. Once MSI interrupts
169 calls pci_disable_msi to disable MSI interrupts and revert back to
175 request MSI based interrupts. A service driver may not know whether
190 6.2 MSI-X Vector Resources
192 Similar to the MSI a device driver for an MSI-X capable device can
193 call pci_enable_msix to request MSI-X interrupts. All service drivers
Dpci.txt392 With MSI and MSI-X (more below) the interrupt number is a CPU "vector".
398 MSI and MSI-X are PCI capabilities. Both are "Message Signaled Interrupts"
400 The fundamental difference between MSI and MSI-X is how multiple
401 "vectors" get allocated. MSI requires contiguous blocks of vectors
402 while MSI-X can allocate several individual ones.
404 MSI capability can be enabled by calling pci_enable_msi() or
409 If your PCI device supports both, try to enable MSI-X first.
411 or BIOSes do NOT support MSI or MSI-X and the call to pci_enable_msi/msix
413 two (or more) interrupt handlers: one for MSI/MSI-X and another for IRQs.
417 There are (at least) two really good reasons for using MSI:
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/linux-2.6.39/Documentation/misc-devices/
Dspear-pcie-gadget.txt35 no_of_msi :zero if MSI is not enabled by host. A positive value is the
36 number of MSI vector granted.
48 INTA, MSI or NO_INT). Select MSI only when you have programmed
50 no_of_msi :number of MSI vector needed.
52 send_msi :write MSI vector to be sent.
110 if MSI is to be used as interrupt, program no of msi vector needed (say4)
113 select MSI as interrupt type
114 # echo MSI >> int_type
126 Should return 4 (number of requested MSI vector)
/linux-2.6.39/drivers/pci/
DKconfig9 bool "Message Signaled Interrupts (MSI and MSI-X)"
13 This allows device drivers to enable MSI (Message Signaled
18 Use of PCI MSI interrupts can be disabled at kernel boot time
19 by using the 'pci=nomsi' option. This disables MSI for the
/linux-2.6.39/Documentation/ABI/testing/
Dconfigfs-spear-pcie-gadget21 no_of_msi ... used to configure number of MSI vector needed and
22 to read no of MSI granted.
24 send_msi ... write MSI vector to be sent.
/linux-2.6.39/Documentation/networking/
Ds2io.txt16 such as jumbo frames, MSI/MSI-X, checksum offloads, TSO, UFO and so on.
32 driver version, interface name(eth3, eth4), Interrupt type(INTA, MSI, MSI-X).
51 d. MSI/MSI-X. Can be enabled on platforms which support this feature
83 Specifies interrupt type. Possible values 0(INTA), 2(MSI-X)
Digb.txt86 In this mode, a separate MSI-X vector is allocated for each queue and one
93 REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
94 found, the system will fallback to MSI or to Legacy interrupts.
De1000e.txt212 Valid Range: 0-2 (0=legacy, 1=MSI, 2=MSI-X)
218 interrupt order is MSI-X, MSI, Legacy. If specifying MSI (IntMode=1)
219 interrupts, only MSI and Legacy will be attempted.
Dixgbevf.txt23 The guest OS loading the ixgbevf driver must support MSI-X interrupts.
Dvxge.txt49 vi) MSI-X: (Enabled by default)
Digbvf.txt25 The guest OS loading the igbvf driver must support MSI-X interrupts.
/linux-2.6.39/Documentation/devicetree/bindings/powerpc/fsl/
Dmsi-pic.txt1 * Freescale MSI interrupt controller
14 optional, without this, all the 256 MSI interrupts can be used.
16 no splitting an individual MSI register or the associated PIC interrupt).
/linux-2.6.39/Documentation/video4linux/
DCARDLIST.em28xx6 5 -> MSI VOX USB 2.0 (em2820/em2840)
50 49 -> MSI DigiVox A/D (em2880) [eb1a:e310]
51 50 -> MSI DigiVox A/D II (em2880) [eb1a:e320]
DCARDLIST.saa713456 55 -> LifeView FlyDVB-T DUO / MSI TV@nywhere Duo [5168:0306,4E42:0306]
83 82 -> MSI TV@Anywhere plus [1462:6231,1462:8624]
95 …94 -> LifeView FlyDVB-T Hybrid Cardbus/MSI TV @nywhere A/D NB [5168:3306,5168:3502,5168:3307,4e42:…
136 135 -> MSI TV@nywhere A/D v1.1 [1462:8625]
DCARDLIST.cx888 7 -> MSI TV-@nywhere Master [1462:8606]
14 13 -> MSI TV-@nywhere
/linux-2.6.39/arch/sparc/kernel/
Dpci_fire.c127 #define MSI_MAP(MSI) (0x020000UL + (MSI) * 0x8UL) argument
132 #define MSI_CLEAR(MSI) (0x028000UL + (MSI) * 0x8UL) argument
/linux-2.6.39/arch/mips/pci/
Dpci-vr41xx.h108 #define MSI 0x1U macro
/linux-2.6.39/Documentation/sound/alsa/
DHD-Audio-Models.txt129 targa Targa T8, MSI-1049 T8
152 targa-dig Targa/MSI
153 targa-2ch-dig Targa/MSI with 2-channel
154 targa-8ch-dig Targa/MSI with 8-channel (MSI GX620)
DHD-Audio.txt124 HD-audio driver uses MSI as default (if available) since 2.6.33
125 kernel as MSI works better on some machines, and in general, it's
127 regressions with MSI (especially in a combination with AMD chipset),
128 thus we disabled MSI for them.
130 There seem also still other devices that don't work with MSI. If you
133 MSI. If it works, you can add the known bad device to the blacklist
/linux-2.6.39/drivers/platform/x86/
DKconfig186 tristate "MSI Laptop Extras"
193 This is a driver for laptops built by MSI (MICRO-STAR
196 MSI MegaBook S270 (MS-1013)
204 If you have an MSI S270 laptop, say Y or M here.
525 tristate "MSI WMI extras"
531 Say Y here if you want to support WMI-based hotkeys on MSI laptops.
/linux-2.6.39/drivers/net/vxge/
Dvxge-main.h176 #define MSI 1 macro
/linux-2.6.39/Documentation/i2c/busses/
Di2c-ali15x357 Microstar (MSI) MS-5169
/linux-2.6.39/Documentation/scsi/
DChangeLog.megaraid_sas9 3. Enable MSI-X before calling megasas_init_fw().
11 boards in MSI-X mode.
31 3. Add MSI-X support and 'msix_disable' module parameter.

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