julian/host/host82576vf.cc File Reference

#include <nul/motherboard.h>
#include <nul/compiler.h>
#include <host/hostvf.h>
#include <host/host82576.h>
#include <host/jsdriver.h>
#include <service/net.h>

Classes
struct	dma_desc
class	Host82576VF
Typedefs
typedef uint8	packet_buffer [2048]
Functions
	static_assert ((sizeof(dma_desc[desc_ring_len])&0x7F)==0,"Size of DMA descriptors must be 128-byte aligned.")
	PARAM (host82576vf,{HostVfPci pci(mb.bus_hwpcicfg, mb.bus_hostop);unsigned vf_no=argv[1];bool promisc=(argv[2]==~0U)?0:argv[2];uint32 itr_us=(argv[3]==~0U)?0:argv[3];uint16 parent_bdf=0;unsigned found=0;for(unsigned bdf, num=0;(bdf=pci.search_device(0x2, 0x0, num++));){unsigned cfg0=pci.conf_read(bdf, 0x0);if(cfg0==0x10c98086){if(found++==argv[0]){parent_bdf=bdf;break;}}}uint16 vf_bdf=pci.vf_bdf(parent_bdf, vf_no);if(pci.vf_device_id(parent_bdf)!=0x10ca8086){Logging::printf("Invalid device.\n");return;}unsigned sriov_cap=pci.find_extended_cap(parent_bdf, pci.EXTCAP_SRIOV);uint16 numvfs=pci.conf_read(parent_bdf, sriov_cap+4)&0xFFFF;if(vf_no >=numvfs){Logging::printf("VF%d does not exist.\n", vf_no);return;}uint64 size=0;uint64 base=pci.vf_bar_base_size(parent_bdf, vf_no, 0, size);MessageHostOp reg_msg(MessageHostOp::OP_ALLOC_IOMEM, base, size);base=pci.vf_bar_base_size(parent_bdf, vf_no, 3, size);MessageHostOp msix_msg(MessageHostOp::OP_ALLOC_IOMEM, base, size);if(!(mb.bus_hostop.send(reg_msg)&&mb.bus_hostop.send(msix_msg)&&reg_msg.ptr &&msix_msg.ptr)){Logging::printf("Could not map register windows.\n");return;}MessageHostOp assign_msg(MessageHostOp::OP_ASSIGN_PCI, parent_bdf, vf_bdf);if(!mb.bus_hostop.send(assign_msg)){Logging::printf("Could not assign PCI device.\n");return;}unsigned irqs[2];for(unsigned i=0;i< 2;i++) irqs[i]=pci.get_gsi_msi(mb.bus_hostop, vf_bdf, i, msix_msg.ptr);Host82576VF *dev=new Host82576VF(pci, mb.bus_hostop, mb.bus_network, mb.clock(), vf_bdf, irqs, reg_msg.ptr, itr_us, promisc);mb.bus_hostirq.add(dev,&Host82576VF::receive_static< MessageIrq >);mb.bus_network.add(dev,&Host82576VF::receive_static< MessageNetwork >);},"host82576vf:pf,vf,[promisc=no[,throttle_us=off]] - provide driver for Intel 82576 virtual function.","Example: 'host82576vf:0,0'")

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Typedef Documentation

typedef uint8 packet_buffer[2048]

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Function Documentation

PARAM

(

host82576vf

)

static_assert	(	(sizeof(dma_desc[desc_ring_len])&0x7F)	= =0,
		"Size of DMA descriptors must be 128-byte aligned."
	)