sriov

package

v0.1.0-beta Latest Latest Go to latest Published: Apr 13, 2023 License: Apache-2.0 Imports: 8 Imported by: 0

Documentation ¶

Index ¶

Constants
Variables
func MaxFairVFs(deviceId string, vfs []int) (int, error)
func PfUIDFromVfUID(uid string) (string, error)
func PickVFProfile(deviceId string, vfMemoryRequestMiB int) (string, error)
func PreConfigureVF(vfAttrsPath string, drmVfIndex int, vfProfile string) error
func UnConfigureVF(attrsDir string) error
func VFIndexFromUID(uid string) (int, error)

Constants ¶

const (
	// PF: 0000:03:00.0-0xXXXX is 19.
	// VF: 0000:03:00.0-0xXXXX-vfY is 23.
	PFUIDLength    = 19
	MinVFUIDLength = 23
)

View Source

const (
	FairShareProfile = "fairShare"
)

Variables ¶

View Source

var PerDeviceIdProfiles = map[string][]string{

	"0x56c0": {"flex170_m1", "flex170_m2", "flex170_m4", "flex170_m5", "flex170_m8", "flex170_m16"},

	"0x56c1": {"flex140_m1", "flex140_m3", "flex140_m6", "flex140_m12"},

	"0x0bd0": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bd5": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bd6": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bd7": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bd8": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bd9": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bda": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},

	"0x0bdb": {"max_c1", "max_c2", "max_c4", "max_c8", "max_c16", "max_c32", "max_c63"},
}

PerDeviceIdProfiles has to be ordered descending by size, the profile picking logic relies on this.

View Source

var Profiles = map[string]map[string]uint64{

	"flex170_m1": {
		"contexts_quota":     1024,
		"doorbells_quota":    240,
		"exec_quantum_ms":    64,
		"ggtt_quota":         4026531840,
		"lmem_quota":         16106127360,
		"preempt_timeout_us": 128000,
		"numvfs":             1,
	},
	"flex170_m2": {
		"contexts_quota":     1024,
		"doorbells_quota":    120,
		"exec_quantum_ms":    32,
		"ggtt_quota":         2013265920,
		"lmem_quota":         8053063680,
		"preempt_timeout_us": 64000,
		"numvfs":             2,
	},
	"flex170_m4": {
		"contexts_quota":     1024,
		"doorbells_quota":    60,
		"exec_quantum_ms":    16,
		"ggtt_quota":         1006632960,
		"lmem_quota":         4026531840,
		"preempt_timeout_us": 32000,
		"numvfs":             4,
	},
	"flex170_m5": {
		"contexts_quota":     1024,
		"doorbells_quota":    48,
		"exec_quantum_ms":    12,
		"ggtt_quota":         805306368,
		"lmem_quota":         3221225472,
		"preempt_timeout_us": 24000,
		"numvfs":             5,
	},
	"flex170_m8": {
		"contexts_quota":     1024,
		"doorbells_quota":    30,
		"exec_quantum_ms":    8,
		"ggtt_quota":         503316480,
		"lmem_quota":         2013265920,
		"preempt_timeout_us": 16000,
		"numvfs":             8,
	},
	"flex170_m16": {
		"contexts_quota":     1024,
		"doorbells_quota":    15,
		"exec_quantum_ms":    4,
		"ggtt_quota":         251658240,
		"lmem_quota":         1006632960,
		"preempt_timeout_us": 8000,
		"numvfs":             16,
	},

	"flex140_m1": {
		"contexts_quota":     1024,
		"doorbells_quota":    240,
		"exec_quantum_ms":    64,
		"ggtt_quota":         4026531840,
		"lmem_quota":         5368709120,
		"preempt_timeout_us": 128000,
		"numvfs":             1,
	},
	"flex140_m3": {
		"contexts_quota":     1024,
		"doorbells_quota":    80,
		"exec_quantum_ms":    22,
		"ggtt_quota":         1342177280,
		"lmem_quota":         1788870656,
		"preempt_timeout_us": 44000,
		"numvfs":             3,
	},
	"flex140_m6": {
		"contexts_quota":     1024,
		"doorbells_quota":    40,
		"exec_quantum_ms":    16,
		"ggtt_quota":         671088640,
		"lmem_quota":         893386752,
		"preempt_timeout_us": 32000,
		"numvfs":             6,
	},
	"flex140_m12": {
		"contexts_quota":     1024,
		"doorbells_quota":    20,
		"exec_quantum_ms":    8,
		"ggtt_quota":         335544320,
		"lmem_quota":         446693376,
		"preempt_timeout_us": 16000,
		"numvfs":             12,
	},

	"max_c1": {
		"contexts_quota":     1024,
		"doorbells_quota":    240,
		"exec_quantum_ms":    64,
		"ggtt_quota":         4026531840,
		"lmem_quota":         64424509440,
		"preempt_timeout_us": 128000,
		"numvfs":             1,
	},
	"max_c2": {
		"contexts_quota":     1024,
		"doorbells_quota":    120,
		"exec_quantum_ms":    64,
		"ggtt_quota":         2013265920,
		"lmem_quota":         32212254720,
		"preempt_timeout_us": 128000,
		"numvfs":             2,
	},
	"max_c4": {
		"contexts_quota":     1024,
		"doorbells_quota":    60,
		"exec_quantum_ms":    64,
		"ggtt_quota":         1006632960,
		"lmem_quota":         16106127360,
		"preempt_timeout_us": 128000,
		"numvfs":             4,
	},
	"max_c8": {
		"contexts_quota":     1024,
		"doorbells_quota":    30,
		"exec_quantum_ms":    32,
		"ggtt_quota":         503316480,
		"lmem_quota":         8053063680,
		"preempt_timeout_us": 64000,
		"numvfs":             8,
	},
	"max_c16": {
		"contexts_quota":     1024,
		"doorbells_quota":    15,
		"exec_quantum_ms":    16,
		"ggtt_quota":         251658240,
		"lmem_quota":         4026531840,
		"preempt_timeout_us": 32000,
		"numvfs":             16,
	},
	"max_c32": {
		"contexts_quota":     1024,
		"doorbells_quota":    7,
		"exec_quantum_ms":    8,
		"ggtt_quota":         125829120,
		"lmem_quota":         2013265920,
		"preempt_timeout_us": 16000,
		"numvfs":             32,
	},
	"max_c63": {
		"contexts_quota":     1024,
		"doorbells_quota":    3,
		"exec_quantum_ms":    4,
		"ggtt_quota":         63897600,
		"lmem_quota":         1021313024,
		"preempt_timeout_us": 8000,
		"numvfs":             32,
	},
	FairShareProfile: {
		"contexts_quota":     0,
		"doorbells_quota":    0,
		"exec_quantum_ms":    0,
		"ggtt_quota":         0,
		"lmem_quota":         0,
		"preempt_timeout_us": 0,
		"numvfs":             0,
	},
}

View Source

var VfAttributeFiles = []string{
	"contexts_quota",
	"doorbells_quota",
	"exec_quantum_ms",
	"ggtt_quota",
	"lmem_quota",
	"preempt_timeout_us",
}

Functions ¶

func MaxFairVFs ¶

func MaxFairVFs(deviceId string, vfs []int) (int, error)

Return maximum number of VFs that PF resources can be split fairly into to suit for requested VFs combination. Example 1: 16 GiB GPU memory can be split into 4, 4, 4, 4 to serve two VFs that requested 2 and 4 GiB respectively. Four VFs can be provisioned by simple fair-share provisioning. Example 2: 16GiB GPU memory cannot be evenly split to server VFs that requested 8, 2, 2 GiB respectively because minimum fair-share split 16 / 3 would yield less memory (5.3 GiB) per VF than the biggest memory request (8).

func PfUIDFromVfUID ¶

func PfUIDFromVfUID(uid string) (string, error)

Return PF UID parsed from VF UID. VF contains fully PF UID and VF index, for instance '0000:03:00.0-vf0-0x1234'.

func PickVFProfile ¶

func PickVFProfile(deviceId string, vfMemoryRequestMiB int) (string, error)

Based on memory request - select suitable VF profile. Can be used in case fair share is not suitable.

func PreConfigureVF ¶

func PreConfigureVF(vfAttrsPath string, drmVfIndex int, vfProfile string) error

Set custom VF settings from profile for manual provisioning mode, in case fair share is not suitable. pf/auto_provisioning will be automatically set to 0 in this case.

func UnConfigureVF ¶

func UnConfigureVF(attrsDir string) error

Set VF settings to auto mode, writing 0 to all configuration files. It is important to set pf/auto_provisioning to 1 after all VFs are unconfigured.

func VFIndexFromUID ¶

func VFIndexFromUID(uid string) (int, error)

Return PF UID parsed from VF UID. VF contains fully PF UID and VF index, for instance '0000:03:00.0-vf0-0x1234'.

Types ¶

This section is empty.

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL