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5cb5104246
the Sun Fire V215/V245 and Sun Ultra 25/45 machines. This driver also already includes all the code to support the `Oberon' Uranus to PCIe bridges found in the Fujitsu-Siemens based Mx000 machines but due to lack of access to such a system for testing, probing of these bridges is currently disabled. Unfortunately, the event queue mechanism of these bridges for MSIs/ MSI-Xs matches our current MD and MI interrupt frameworks like square pegs fit into round holes so for now we are generous and use one event queue per MSI, which limits us to 35 MSIs/MSI-Xs per Host-PCIe-bridge (we use one event queue for the PCIe error messages). This seems tolerable as long as most devices just use one MSI/MSI-X anyway. Adding knowledge about MSIs/MSI-Xs to the MD interrupt code should allow us to decouple the 1:1 mapping at the cost of no longer being able to bind MSIs/MSI-Xs to specific CPUs as we currently have no reliable way to quiesce a device during the transition of its MSIs/ MSI-Xs to another event queue. This would still require the problem of interrupt storms generated by devices which have no one-shot behavior or can't/don't mask interrupts while the filter/handler is executed (like the older PCIe NICs supported by bge(4)) to be solved though. Committed from: 26C3
33 lines
592 B
Plaintext
33 lines
592 B
Plaintext
# $FreeBSD$
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GFB_DEBUG opt_gfb.h
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GFB_NO_FONT_LOADING opt_gfb.h
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GFB_NO_MODE_CHANGE opt_gfb.h
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SUN4U opt_global.h
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ATKBD_DFLT_KEYMAP opt_atkbd.h
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FIRE_DEBUG opt_fire.h
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# Debug IOMMU inserts/removes using diagnostic accesses. This is very loud.
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IOMMU_DIAG opt_iommu.h
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OFWCONS_POLL_HZ opt_ofw.h
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OFW_PCI_DEBUG opt_ofw_pci.h
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PMAP_STATS opt_pmap.h
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PSM_DEBUG opt_psm.h
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PSM_HOOKRESUME opt_psm.h
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PSM_RESETAFTERSUSPEND opt_psm.h
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DEBUGGER_ON_POWERFAIL opt_psycho.h
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PSYCHO_DEBUG opt_psycho.h
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SCHIZO_DEBUG opt_schizo.h
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SUNKBD_DFLT_KEYMAP opt_sunkbd.h
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SUNKBD_EMULATE_ATKBD opt_sunkbd.h
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