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Add driver for the PAPR VSCSI virtual SCSI controller. This lets FreeBSD
install directly into standard POWER LPARs, as found for example in QEMU. The core of this device is the SCSI RDMA protocol as also found in Infiniband. The SRP portions of the driver will be factored out and placed /sys/cam in the future to allow them to be used for IB storage. Thanks to Scott Long for a great deal of implementation help. Reviewed by: scottl Approved by: re (kib)
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=255927
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@ -228,6 +228,7 @@ powerpc/ps3/ps3-hvcall.S optional ps3 sc
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powerpc/pseries/phyp-hvcall.S optional pseries powerpc64
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powerpc/pseries/mmu_phyp.c optional pseries powerpc64
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powerpc/pseries/phyp_console.c optional pseries powerpc64
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powerpc/pseries/phyp_vscsi.c optional pseries powerpc64 scbus
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powerpc/pseries/platform_chrp.c optional pseries
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powerpc/pseries/plpar_iommu.c optional pseries powerpc64
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powerpc/pseries/rtas_dev.c optional pseries
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1003
sys/powerpc/pseries/phyp_vscsi.c
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1003
sys/powerpc/pseries/phyp_vscsi.c
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File diff suppressed because it is too large
Load diff
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@ -41,12 +41,17 @@ __FBSDID("$FreeBSD$");
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <powerpc/pseries/plpar_iommu.h>
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#include "iommu_if.h"
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static int vdevice_probe(device_t);
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static int vdevice_attach(device_t);
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static const struct ofw_bus_devinfo *vdevice_get_devinfo(device_t dev,
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device_t child);
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static int vdevice_print_child(device_t dev, device_t child);
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static struct resource_list *vdevice_get_resource_list (device_t, device_t);
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static struct resource_list *vdevice_get_resource_list(device_t, device_t);
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static bus_dma_tag_t vdevice_get_dma_tag(device_t dev, device_t child);
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/*
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* VDevice devinfo
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@ -54,6 +59,7 @@ static struct resource_list *vdevice_get_resource_list (device_t, device_t);
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struct vdevice_devinfo {
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struct ofw_bus_devinfo mdi_obdinfo;
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struct resource_list mdi_resources;
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bus_dma_tag_t mdi_dma_tag;
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};
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static device_method_t vdevice_methods[] = {
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@ -81,6 +87,11 @@ static device_method_t vdevice_methods[] = {
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DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
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DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
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/* IOMMU interface */
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DEVMETHOD(bus_get_dma_tag, vdevice_get_dma_tag),
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DEVMETHOD(iommu_map, phyp_iommu_map),
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DEVMETHOD(iommu_unmap, phyp_iommu_unmap),
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DEVMETHOD_END
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};
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@ -200,3 +211,22 @@ vdevice_get_resource_list (device_t dev, device_t child)
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return (&dinfo->mdi_resources);
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}
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static bus_dma_tag_t
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vdevice_get_dma_tag(device_t dev, device_t child)
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{
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struct vdevice_devinfo *dinfo;
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while (child != NULL && device_get_parent(child) != dev)
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child = device_get_parent(child);
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dinfo = device_get_ivars(child);
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if (dinfo->mdi_dma_tag == NULL) {
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bus_dma_tag_create(bus_get_dma_tag(dev),
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1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
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NULL, NULL, BUS_SPACE_MAXSIZE, BUS_SPACE_UNRESTRICTED,
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BUS_SPACE_MAXSIZE, 0, NULL, NULL, &dinfo->mdi_dma_tag);
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phyp_iommu_set_dma_tag(dev, child, dinfo->mdi_dma_tag);
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}
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return (dinfo->mdi_dma_tag);
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}
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