diff --git a/.gitmodules b/.gitmodules
index c837451c94..bbd7722d15 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,15 +1,15 @@
[submodule "sonic-swss-common"]
path = src/sonic-swss-common
- url = https://github.com/Azure/sonic-swss-common
+ url = https://github.com/barefootnetworks/sonic-swss-common
[submodule "sonic-linux-kernel"]
path = src/sonic-linux-kernel
url = https://github.com/Azure/sonic-linux-kernel
[submodule "sonic-sairedis"]
path = src/sonic-sairedis
- url = https://github.com/Azure/sonic-sairedis
+ url = https://github.com/barefootnetworks/sonic-sairedis
[submodule "sonic-swss"]
path = src/sonic-swss
- url = https://github.com/Azure/sonic-swss
+ url = https://github.com/barefootnetworks/sonic-swss
[submodule "src/p4-switch/switch"]
path = platform/p4/p4-switch/switch
url = https://github.com/krambn/switch
diff --git a/device/barefoot/x86_64-accton_wedge100bf_32x-r0/installer.conf b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/installer.conf
new file mode 100644
index 0000000000..3714ff053b
--- /dev/null
+++ b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/installer.conf
@@ -0,0 +1 @@
+CONSOLE_SPEED=57600
diff --git a/device/barefoot/x86_64-accton_wedge100bf_32x-r0/minigraph.xml b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/minigraph.xml
new file mode 100644
index 0000000000..20637fc434
--- /dev/null
+++ b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/minigraph.xml
@@ -0,0 +1,1079 @@
+
+
+
+
+
+ ARISTA01T0
+ 10.0.0.33
+ switch2
+ 10.0.0.32
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.0
+ ARISTA01T2
+ 10.0.0.1
+ 1
+ 180
+ 60
+
+
+ ARISTA02T0
+ 10.0.0.35
+ switch2
+ 10.0.0.34
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.2
+ ARISTA02T2
+ 10.0.0.3
+ 1
+ 180
+ 60
+
+
+ ARISTA03T0
+ 10.0.0.37
+ switch2
+ 10.0.0.36
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.4
+ ARISTA03T2
+ 10.0.0.5
+ 1
+ 180
+ 60
+
+
+ ARISTA04T0
+ 10.0.0.39
+ switch2
+ 10.0.0.38
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.6
+ ARISTA04T2
+ 10.0.0.7
+ 1
+ 180
+ 60
+
+
+ ARISTA05T0
+ 10.0.0.41
+ switch2
+ 10.0.0.40
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.8
+ ARISTA05T2
+ 10.0.0.9
+ 1
+ 180
+ 60
+
+
+ ARISTA06T0
+ 10.0.0.43
+ switch2
+ 10.0.0.42
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.10
+ ARISTA06T2
+ 10.0.0.11
+ 1
+ 180
+ 60
+
+
+ ARISTA07T0
+ 10.0.0.45
+ switch2
+ 10.0.0.44
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.12
+ ARISTA07T2
+ 10.0.0.13
+ 1
+ 180
+ 60
+
+
+ ARISTA08T0
+ 10.0.0.47
+ switch2
+ 10.0.0.46
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.14
+ ARISTA08T2
+ 10.0.0.15
+ 1
+ 180
+ 60
+
+
+ ARISTA09T0
+ 10.0.0.49
+ switch2
+ 10.0.0.48
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.16
+ ARISTA09T2
+ 10.0.0.17
+ 1
+ 180
+ 60
+
+
+ ARISTA10T0
+ 10.0.0.51
+ switch2
+ 10.0.0.50
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.18
+ ARISTA10T2
+ 10.0.0.19
+ 1
+ 180
+ 60
+
+
+ ARISTA11T0
+ 10.0.0.53
+ switch2
+ 10.0.0.52
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.20
+ ARISTA11T2
+ 10.0.0.21
+ 1
+ 180
+ 60
+
+
+ ARISTA12T0
+ 10.0.0.55
+ switch2
+ 10.0.0.54
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.22
+ ARISTA12T2
+ 10.0.0.23
+ 1
+ 180
+ 60
+
+
+ ARISTA13T0
+ 10.0.0.57
+ switch2
+ 10.0.0.56
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.24
+ ARISTA13T2
+ 10.0.0.25
+ 1
+ 180
+ 60
+
+
+ ARISTA14T0
+ 10.0.0.59
+ switch2
+ 10.0.0.58
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.26
+ ARISTA14T2
+ 10.0.0.27
+ 1
+ 180
+ 60
+
+
+ ARISTA15T0
+ 10.0.0.61
+ switch2
+ 10.0.0.60
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.28
+ ARISTA15T2
+ 10.0.0.29
+ 1
+ 180
+ 60
+
+
+ ARISTA16T0
+ 10.0.0.63
+ switch2
+ 10.0.0.62
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.30
+ ARISTA16T2
+ 10.0.0.31
+ 1
+ 180
+ 60
+
+
+
+
+ 65100
+ switch2
+
+
+ 10.0.0.33
+
+
+
+
+ 10.0.0.1
+
+
+
+
+ 10.0.0.35
+
+
+
+
+ 10.0.0.3
+
+
+
+
+ 10.0.0.37
+
+
+
+
+ 10.0.0.5
+
+
+
+
+ 10.0.0.39
+
+
+
+
+ 10.0.0.7
+
+
+
+
+ 10.0.0.41
+
+
+
+
+ 10.0.0.9
+
+
+
+
+ 10.0.0.43
+
+
+
+
+ 10.0.0.11
+
+
+
+
+ 10.0.0.45
+
+
+
+
+ 10.0.0.13
+
+
+
+
+ 10.0.0.47
+
+
+
+
+ 10.0.0.15
+
+
+
+
+ 10.0.0.49
+
+
+
+
+ 10.0.0.17
+
+
+
+
+ 10.0.0.51
+
+
+
+
+ 10.0.0.19
+
+
+
+
+ 10.0.0.53
+
+
+
+
+ 10.0.0.21
+
+
+
+
+ 10.0.0.55
+
+
+
+
+ 10.0.0.23
+
+
+
+
+ 10.0.0.57
+
+
+
+
+ 10.0.0.25
+
+
+
+
+ 10.0.0.59
+
+
+
+
+ 10.0.0.27
+
+
+
+
+ 10.0.0.61
+
+
+
+
+ 10.0.0.29
+
+
+
+
+ 10.0.0.63
+
+
+
+
+ 10.0.0.31
+
+
+
+
+
+
+
+ 64001
+ ARISTA01T0
+
+
+
+ 65200
+ ARISTA01T2
+
+
+
+ 64002
+ ARISTA02T0
+
+
+
+ 65200
+ ARISTA02T2
+
+
+
+ 64003
+ ARISTA03T0
+
+
+
+ 65200
+ ARISTA03T2
+
+
+
+ 64004
+ ARISTA04T0
+
+
+
+ 65200
+ ARISTA04T2
+
+
+
+ 64005
+ ARISTA05T0
+
+
+
+ 65200
+ ARISTA05T2
+
+
+
+ 64006
+ ARISTA06T0
+
+
+
+ 65200
+ ARISTA06T2
+
+
+
+ 64007
+ ARISTA07T0
+
+
+
+ 65200
+ ARISTA07T2
+
+
+
+ 64008
+ ARISTA08T0
+
+
+
+ 65200
+ ARISTA08T2
+
+
+
+ 64009
+ ARISTA09T0
+
+
+
+ 65200
+ ARISTA09T2
+
+
+
+ 64010
+ ARISTA10T0
+
+
+
+ 65200
+ ARISTA10T2
+
+
+
+ 64011
+ ARISTA11T0
+
+
+
+ 65200
+ ARISTA11T2
+
+
+
+ 64012
+ ARISTA12T0
+
+
+
+ 65200
+ ARISTA12T2
+
+
+
+ 64013
+ ARISTA13T0
+
+
+
+ 65200
+ ARISTA13T2
+
+
+
+ 64014
+ ARISTA14T0
+
+
+
+ 65200
+ ARISTA14T2
+
+
+
+ 64015
+ ARISTA15T0
+
+
+
+ 65200
+ ARISTA15T2
+
+
+
+ 64016
+ ARISTA16T0
+
+
+
+ 65200
+ ARISTA16T2
+
+
+
+
+
+
+
+
+
+ HostIP
+ Loopback0
+
+ 10.1.0.32/32
+
+ 10.1.0.32/32
+
+
+
+
+
+
+
+ switch2
+
+
+
+
+
+ Ethernet0
+ 10.0.0.0/31
+
+
+
+ Ethernet4
+ 10.0.0.2/31
+
+
+
+ Ethernet8
+ 10.0.0.4/31
+
+
+
+ Ethernet12
+ 10.0.0.6/31
+
+
+
+ Ethernet16
+ 10.0.0.8/31
+
+
+
+ Ethernet20
+ 10.0.0.10/31
+
+
+
+ Ethernet24
+ 10.0.0.12/31
+
+
+
+ Ethernet28
+ 10.0.0.14/31
+
+
+
+ Ethernet32
+ 10.0.0.16/31
+
+
+
+ Ethernet36
+ 10.0.0.18/31
+
+
+
+ Ethernet40
+ 10.0.0.20/31
+
+
+
+ Ethernet44
+ 10.0.0.22/31
+
+
+
+ Ethernet48
+ 10.0.0.24/31
+
+
+
+ Ethernet52
+ 10.0.0.26/31
+
+
+
+ Ethernet56
+ 10.0.0.28/31
+
+
+
+ Ethernet60
+ 10.0.0.30/31
+
+
+
+ Ethernet64
+ 10.0.0.32/31
+
+
+
+ Ethernet68
+ 10.0.0.34/31
+
+
+
+ Ethernet72
+ 10.0.0.36/31
+
+
+
+ Ethernet76
+ 10.0.0.38/31
+
+
+
+ Ethernet80
+ 10.0.0.40/31
+
+
+
+ Ethernet84
+ 10.0.0.42/31
+
+
+
+ Ethernet88
+ 10.0.0.44/31
+
+
+
+ Ethernet92
+ 10.0.0.46/31
+
+
+
+ Ethernet96
+ 10.0.0.48/31
+
+
+
+ Ethernet100
+ 10.0.0.50/31
+
+
+
+ Ethernet104
+ 10.0.0.52/31
+
+
+
+ Ethernet108
+ 10.0.0.54/31
+
+
+
+ Ethernet112
+ 10.0.0.56/31
+
+
+
+ Ethernet116
+ 10.0.0.58/31
+
+
+
+ Ethernet120
+ 10.0.0.60/31
+
+
+
+ Ethernet124
+ 10.0.0.62/31
+
+
+
+
+
+
+
+
+
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet0
+ ARISTA01T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet4
+ ARISTA02T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet8
+ ARISTA03T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet12
+ ARISTA04T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet16
+ ARISTA05T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet20
+ ARISTA06T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet24
+ ARISTA07T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet28
+ ARISTA08T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet32
+ ARISTA09T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet36
+ ARISTA10T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet40
+ ARISTA11T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet44
+ ARISTA12T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet48
+ ARISTA13T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet52
+ ARISTA14T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet56
+ ARISTA15T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet60
+ ARISTA16T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet64
+ ARISTA01T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet68
+ ARISTA02T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet72
+ ARISTA03T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet76
+ ARISTA04T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet80
+ ARISTA05T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet84
+ ARISTA06T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet88
+ ARISTA07T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet92
+ ARISTA08T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet96
+ ARISTA09T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet100
+ ARISTA10T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet104
+ ARISTA11T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet108
+ ARISTA12T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet112
+ ARISTA13T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet116
+ ARISTA14T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet120
+ ARISTA15T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet124
+ ARISTA16T0
+ Ethernet1
+
+
+
+
+ switch2
+ montara
+
+ `
+
+
+
+
+ switch2
+
+
+ DhcpResources
+
+
+
+
+ NtpResources
+
+ 0.debian.pool.ntp.org;1.debian.pool.ntp.org;2.debian.pool.ntp.org;3.debian.pool.ntp.org
+
+
+ SyslogResources
+
+
+
+
+ ErspanDestinationIpv4
+
+ 2.2.2.2
+
+
+
+
+
+
+ switch2
+ montara
+
diff --git a/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/port_config.ini b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/port_config.ini
new file mode 100644
index 0000000000..816bb0e94a
--- /dev/null
+++ b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/port_config.ini
@@ -0,0 +1,33 @@
+# name lanes
+Ethernet0 0,1,2,3
+Ethernet4 4,5,6,7
+Ethernet8 8,9,10,11
+Ethernet12 12,13,14,15
+Ethernet16 16,17,18,19
+Ethernet20 20,21,22,23
+Ethernet24 24,25,26,27
+Ethernet28 28,29,30,31
+Ethernet32 32,33,34,35
+Ethernet36 36,37,38,39
+Ethernet40 40,41,42,43
+Ethernet44 44,45,46,47
+Ethernet48 48,49,50,51
+Ethernet52 52,53,54,55
+Ethernet56 56,57,58,59
+Ethernet60 60,61,62,63
+Ethernet64 64,65,66,67
+Ethernet68 68,69,70,71
+Ethernet72 72,73,74,75
+Ethernet76 76,77,78,79
+Ethernet80 80,81,82,83
+Ethernet84 84,85,86,87
+Ethernet88 88,89,90,91
+Ethernet92 92,93,94,95
+Ethernet96 96,97,98,99
+Ethernet100 100,101,102,103
+Ethernet104 104,105,106,107
+Ethernet108 108,109,110,111
+Ethernet112 112,113,114,115
+Ethernet116 116,117,118,119
+Ethernet120 120,121,122,123
+Ethernet124 124,125,126,127
diff --git a/device/barefoot/x86_64-accton_wedge100bf_65x-r0/installer.conf b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/installer.conf
new file mode 100644
index 0000000000..3714ff053b
--- /dev/null
+++ b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/installer.conf
@@ -0,0 +1 @@
+CONSOLE_SPEED=57600
diff --git a/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/port_config.ini b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/port_config.ini
new file mode 100644
index 0000000000..c1001741d2
--- /dev/null
+++ b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/port_config.ini
@@ -0,0 +1,66 @@
+# name lanes
+Ethernet0 0,1,2,3
+Ethernet4 4,5,6,7
+Ethernet8 8,9,10,11
+Ethernet12 12,13,14,15
+Ethernet16 16,17,18,19
+Ethernet20 20,21,22,23
+Ethernet24 24,25,26,27
+Ethernet28 28,29,30,31
+Ethernet32 32,33,34,35
+Ethernet36 36,37,38,39
+Ethernet40 40,41,42,43
+Ethernet44 44,45,46,47
+Ethernet48 48,49,50,51
+Ethernet52 52,53,54,55
+Ethernet56 56,57,58,59
+Ethernet60 60,61,62,63
+Ethernet64 64,65,66,67
+Ethernet68 68,69,70,71
+Ethernet72 72,73,74,75
+Ethernet76 76,77,78,79
+Ethernet80 80,81,82,83
+Ethernet84 84,85,86,87
+Ethernet88 88,89,90,91
+Ethernet92 92,93,94,95
+Ethernet96 96,97,98,99
+Ethernet100 100,101,102,103
+Ethernet104 104,105,106,107
+Ethernet108 108,109,110,111
+Ethernet112 112,113,114,115
+Ethernet116 116,117,118,119
+Ethernet120 120,121,122,123
+Ethernet124 124,125,126,127
+Ethernet128 128,129,130,131
+Ethernet132 132,133,134,135
+Ethernet136 136,137,138,139
+Ethernet140 140,141,142,143
+Ethernet144 144,145,146,147
+Ethernet148 148,149,150,151
+Ethernet152 152,153,154,155
+Ethernet156 156,157,158,159
+Ethernet160 160,161,162,163
+Ethernet164 164,165,166,167
+Ethernet168 168,169,170,171
+Ethernet172 172,173,174,175
+Ethernet176 176,177,178,179
+Ethernet180 180,181,182,183
+Ethernet184 184,185,186,187
+Ethernet188 188,189,190,191
+Ethernet192 192,193,194,195
+Ethernet196 196,197,198,199
+Ethernet200 200,201,202,203
+Ethernet204 204,205,206,207
+Ethernet208 208,209,210,211
+Ethernet212 212,213,214,215
+Ethernet216 216,217,218,219
+Ethernet220 220,221,222,223
+Ethernet224 224,225,226,227
+Ethernet228 228,229,230,231
+Ethernet232 232,233,234,235
+Ethernet236 236,237,238,239
+Ethernet240 240,241,242,243
+Ethernet244 244,245,246,247
+Ethernet248 248,249,250,251
+Ethernet252 252,253,254,255
+Ethernet256 256,257,258,259
diff --git a/device/barefoot/x86_64-accton_wedge100bf_65x-r0/minigraph.xml b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/minigraph.xml
new file mode 100644
index 0000000000..61f7b9c85a
--- /dev/null
+++ b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/minigraph.xml
@@ -0,0 +1,1079 @@
+
+
+
+
+
+ ARISTA01T0
+ 10.0.0.33
+ switch2
+ 10.0.0.32
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.0
+ ARISTA01T2
+ 10.0.0.1
+ 1
+ 180
+ 60
+
+
+ ARISTA02T0
+ 10.0.0.35
+ switch2
+ 10.0.0.34
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.2
+ ARISTA02T2
+ 10.0.0.3
+ 1
+ 180
+ 60
+
+
+ ARISTA03T0
+ 10.0.0.37
+ switch2
+ 10.0.0.36
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.4
+ ARISTA03T2
+ 10.0.0.5
+ 1
+ 180
+ 60
+
+
+ ARISTA04T0
+ 10.0.0.39
+ switch2
+ 10.0.0.38
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.6
+ ARISTA04T2
+ 10.0.0.7
+ 1
+ 180
+ 60
+
+
+ ARISTA05T0
+ 10.0.0.41
+ switch2
+ 10.0.0.40
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.8
+ ARISTA05T2
+ 10.0.0.9
+ 1
+ 180
+ 60
+
+
+ ARISTA06T0
+ 10.0.0.43
+ switch2
+ 10.0.0.42
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.10
+ ARISTA06T2
+ 10.0.0.11
+ 1
+ 180
+ 60
+
+
+ ARISTA07T0
+ 10.0.0.45
+ switch2
+ 10.0.0.44
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.12
+ ARISTA07T2
+ 10.0.0.13
+ 1
+ 180
+ 60
+
+
+ ARISTA08T0
+ 10.0.0.47
+ switch2
+ 10.0.0.46
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.14
+ ARISTA08T2
+ 10.0.0.15
+ 1
+ 180
+ 60
+
+
+ ARISTA09T0
+ 10.0.0.49
+ switch2
+ 10.0.0.48
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.16
+ ARISTA09T2
+ 10.0.0.17
+ 1
+ 180
+ 60
+
+
+ ARISTA10T0
+ 10.0.0.51
+ switch2
+ 10.0.0.50
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.18
+ ARISTA10T2
+ 10.0.0.19
+ 1
+ 180
+ 60
+
+
+ ARISTA11T0
+ 10.0.0.53
+ switch2
+ 10.0.0.52
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.20
+ ARISTA11T2
+ 10.0.0.21
+ 1
+ 180
+ 60
+
+
+ ARISTA12T0
+ 10.0.0.55
+ switch2
+ 10.0.0.54
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.22
+ ARISTA12T2
+ 10.0.0.23
+ 1
+ 180
+ 60
+
+
+ ARISTA13T0
+ 10.0.0.57
+ switch2
+ 10.0.0.56
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.24
+ ARISTA13T2
+ 10.0.0.25
+ 1
+ 180
+ 60
+
+
+ ARISTA14T0
+ 10.0.0.59
+ switch2
+ 10.0.0.58
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.26
+ ARISTA14T2
+ 10.0.0.27
+ 1
+ 180
+ 60
+
+
+ ARISTA15T0
+ 10.0.0.61
+ switch2
+ 10.0.0.60
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.28
+ ARISTA15T2
+ 10.0.0.29
+ 1
+ 180
+ 60
+
+
+ ARISTA16T0
+ 10.0.0.63
+ switch2
+ 10.0.0.62
+ 1
+ 180
+ 60
+
+
+ switch2
+ 10.0.0.30
+ ARISTA16T2
+ 10.0.0.31
+ 1
+ 180
+ 60
+
+
+
+
+ 65100
+ switch2
+
+
+ 10.0.0.33
+
+
+
+
+ 10.0.0.1
+
+
+
+
+ 10.0.0.35
+
+
+
+
+ 10.0.0.3
+
+
+
+
+ 10.0.0.37
+
+
+
+
+ 10.0.0.5
+
+
+
+
+ 10.0.0.39
+
+
+
+
+ 10.0.0.7
+
+
+
+
+ 10.0.0.41
+
+
+
+
+ 10.0.0.9
+
+
+
+
+ 10.0.0.43
+
+
+
+
+ 10.0.0.11
+
+
+
+
+ 10.0.0.45
+
+
+
+
+ 10.0.0.13
+
+
+
+
+ 10.0.0.47
+
+
+
+
+ 10.0.0.15
+
+
+
+
+ 10.0.0.49
+
+
+
+
+ 10.0.0.17
+
+
+
+
+ 10.0.0.51
+
+
+
+
+ 10.0.0.19
+
+
+
+
+ 10.0.0.53
+
+
+
+
+ 10.0.0.21
+
+
+
+
+ 10.0.0.55
+
+
+
+
+ 10.0.0.23
+
+
+
+
+ 10.0.0.57
+
+
+
+
+ 10.0.0.25
+
+
+
+
+ 10.0.0.59
+
+
+
+
+ 10.0.0.27
+
+
+
+
+ 10.0.0.61
+
+
+
+
+ 10.0.0.29
+
+
+
+
+ 10.0.0.63
+
+
+
+
+ 10.0.0.31
+
+
+
+
+
+
+
+ 64001
+ ARISTA01T0
+
+
+
+ 65200
+ ARISTA01T2
+
+
+
+ 64002
+ ARISTA02T0
+
+
+
+ 65200
+ ARISTA02T2
+
+
+
+ 64003
+ ARISTA03T0
+
+
+
+ 65200
+ ARISTA03T2
+
+
+
+ 64004
+ ARISTA04T0
+
+
+
+ 65200
+ ARISTA04T2
+
+
+
+ 64005
+ ARISTA05T0
+
+
+
+ 65200
+ ARISTA05T2
+
+
+
+ 64006
+ ARISTA06T0
+
+
+
+ 65200
+ ARISTA06T2
+
+
+
+ 64007
+ ARISTA07T0
+
+
+
+ 65200
+ ARISTA07T2
+
+
+
+ 64008
+ ARISTA08T0
+
+
+
+ 65200
+ ARISTA08T2
+
+
+
+ 64009
+ ARISTA09T0
+
+
+
+ 65200
+ ARISTA09T2
+
+
+
+ 64010
+ ARISTA10T0
+
+
+
+ 65200
+ ARISTA10T2
+
+
+
+ 64011
+ ARISTA11T0
+
+
+
+ 65200
+ ARISTA11T2
+
+
+
+ 64012
+ ARISTA12T0
+
+
+
+ 65200
+ ARISTA12T2
+
+
+
+ 64013
+ ARISTA13T0
+
+
+
+ 65200
+ ARISTA13T2
+
+
+
+ 64014
+ ARISTA14T0
+
+
+
+ 65200
+ ARISTA14T2
+
+
+
+ 64015
+ ARISTA15T0
+
+
+
+ 65200
+ ARISTA15T2
+
+
+
+ 64016
+ ARISTA16T0
+
+
+
+ 65200
+ ARISTA16T2
+
+
+
+
+
+
+
+
+
+ HostIP
+ Loopback0
+
+ 10.1.0.32/32
+
+ 10.1.0.32/32
+
+
+
+
+
+
+
+ switch2
+
+
+
+
+
+ Ethernet0
+ 10.0.0.0/31
+
+
+
+ Ethernet4
+ 10.0.0.2/31
+
+
+
+ Ethernet8
+ 10.0.0.4/31
+
+
+
+ Ethernet12
+ 10.0.0.6/31
+
+
+
+ Ethernet16
+ 10.0.0.8/31
+
+
+
+ Ethernet20
+ 10.0.0.10/31
+
+
+
+ Ethernet24
+ 10.0.0.12/31
+
+
+
+ Ethernet28
+ 10.0.0.14/31
+
+
+
+ Ethernet32
+ 10.0.0.16/31
+
+
+
+ Ethernet36
+ 10.0.0.18/31
+
+
+
+ Ethernet40
+ 10.0.0.20/31
+
+
+
+ Ethernet44
+ 10.0.0.22/31
+
+
+
+ Ethernet48
+ 10.0.0.24/31
+
+
+
+ Ethernet52
+ 10.0.0.26/31
+
+
+
+ Ethernet56
+ 10.0.0.28/31
+
+
+
+ Ethernet60
+ 10.0.0.30/31
+
+
+
+ Ethernet64
+ 10.0.0.32/31
+
+
+
+ Ethernet68
+ 10.0.0.34/31
+
+
+
+ Ethernet72
+ 10.0.0.36/31
+
+
+
+ Ethernet76
+ 10.0.0.38/31
+
+
+
+ Ethernet80
+ 10.0.0.40/31
+
+
+
+ Ethernet84
+ 10.0.0.42/31
+
+
+
+ Ethernet88
+ 10.0.0.44/31
+
+
+
+ Ethernet92
+ 10.0.0.46/31
+
+
+
+ Ethernet96
+ 10.0.0.48/31
+
+
+
+ Ethernet100
+ 10.0.0.50/31
+
+
+
+ Ethernet104
+ 10.0.0.52/31
+
+
+
+ Ethernet108
+ 10.0.0.54/31
+
+
+
+ Ethernet112
+ 10.0.0.56/31
+
+
+
+ Ethernet116
+ 10.0.0.58/31
+
+
+
+ Ethernet120
+ 10.0.0.60/31
+
+
+
+ Ethernet124
+ 10.0.0.62/31
+
+
+
+
+
+
+
+
+
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet0
+ ARISTA01T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet4
+ ARISTA02T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet8
+ ARISTA03T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet12
+ ARISTA04T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet16
+ ARISTA05T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet20
+ ARISTA06T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet24
+ ARISTA07T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet28
+ ARISTA08T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet32
+ ARISTA09T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet36
+ ARISTA10T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet40
+ ARISTA11T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet44
+ ARISTA12T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet48
+ ARISTA13T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet52
+ ARISTA14T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet56
+ ARISTA15T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet60
+ ARISTA16T2
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet64
+ ARISTA01T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet68
+ ARISTA02T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet72
+ ARISTA03T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet76
+ ARISTA04T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet80
+ ARISTA05T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet84
+ ARISTA06T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet88
+ ARISTA07T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet92
+ ARISTA08T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet96
+ ARISTA09T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet100
+ ARISTA10T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet104
+ ARISTA11T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet108
+ ARISTA12T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet112
+ ARISTA13T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet116
+ ARISTA14T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet120
+ ARISTA15T0
+ Ethernet1
+
+
+ DeviceInterfaceLink
+ switch2
+ Ethernet124
+ ARISTA16T0
+ Ethernet1
+
+
+
+
+ switch2
+ mavericks
+
+ `
+
+
+
+
+ switch2
+
+
+ DhcpResources
+
+
+
+
+ NtpResources
+
+ 0.debian.pool.ntp.org;1.debian.pool.ntp.org;2.debian.pool.ntp.org;3.debian.pool.ntp.org
+
+
+ SyslogResources
+
+
+
+
+ ErspanDestinationIpv4
+
+ 2.2.2.2
+
+
+
+
+
+
+ switch2
+ mavericks
+
diff --git a/dockers/docker-bfn-sswsyncd-rpc/Dockerfile b/dockers/docker-bfn-sswsyncd-rpc/Dockerfile
new file mode 100644
index 0000000000..4d1b3e49bc
--- /dev/null
+++ b/dockers/docker-bfn-sswsyncd-rpc/Dockerfile
@@ -0,0 +1,38 @@
+FROM docker-base
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+## Pre-install the fundamental packages
+RUN apt-get update \
+ && apt-get -y install \
+ net-tools
+
+COPY deps /deps
+RUN dpkg_apt() { [ -f $1 ] && { dpkg -i $1 || apt-get -y install -f; } || return 1; }; \
+ dpkg_apt /deps/python-tabulate_*.deb \
+ && dpkg_apt /deps/applibs_*.deb \
+ && dpkg_apt /deps/applibs-dev_*.deb \
+ && dpkg_apt /deps/sx-complib_*.deb \
+ && dpkg_apt /deps/sxd-libs_*.deb \
+ && dpkg_apt /deps/sx-scew_*.deb \
+ && dpkg_apt /deps/sx-examples_*.deb \
+ && dpkg_apt /deps/sx-gen-utils_*.deb \
+ && dpkg_apt /deps/python-sdk-api_*.deb \
+ && dpkg_apt /deps/sx-libnl_*.deb \
+ && dpkg_apt /deps/iproute2_*.deb \
+ && dpkg_apt /deps/libsswsdk_*.deb \
+ && dpkg_apt /deps/libthrift-0.9.3_*.deb \
+ && dpkg_apt /deps/libthrift-dev_*.deb
+
+RUN dpkg_apt() { [ -f $1 ] && { dpkg -i $1 || apt-get -y install -f; } || return 1; }; \
+ dpkg_apt /deps/mlnx-sai_*.deb \
+ && dpkg_apt /deps/sswsyncd-saithrift_*.deb
+
+## Clean up
+RUN apt-get clean -y ; apt-get autoclean -y ; apt-get autoremove -y ; rm -rf /deps
+
+ENTRYPOINT service rsyslog start \
+ && mkdir -p /dev/sxdevs && ( [ -e /dev/sxdevs/sxcdev ] || mknod /dev/sxdevs/sxcdev c 231 193 ) \
+ && service sswsyncd start \
+ && /bin/bash
diff --git a/dockers/docker-bfn-sswsyncd/Dockerfile b/dockers/docker-bfn-sswsyncd/Dockerfile
new file mode 100755
index 0000000000..9bb6c71e87
--- /dev/null
+++ b/dockers/docker-bfn-sswsyncd/Dockerfile
@@ -0,0 +1,17 @@
+FROM docker-base
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update
+
+## Pre-install the fundamental packages
+RUN apt-get update \
+ && apt-get -y install \
+ net-tools
+
+COPY deps /deps
+
+ENTRYPOINT service rsyslog start \
+ && sleep 5 && service sswsyncd start \
+ && /bin/bash
diff --git a/dockers/docker-orchagent-bfn b/dockers/docker-orchagent-bfn
new file mode 120000
index 0000000000..8d52609c56
--- /dev/null
+++ b/dockers/docker-orchagent-bfn
@@ -0,0 +1 @@
+docker-orchagent
\ No newline at end of file
diff --git a/dockers/docker-orchagent/orchagent.sh b/dockers/docker-orchagent/orchagent.sh
index f92dfe5fd5..b11a202230 100755
--- a/dockers/docker-orchagent/orchagent.sh
+++ b/dockers/docker-orchagent/orchagent.sh
@@ -18,6 +18,8 @@ if [ "$platform" == "broadcom" ]; then
ORCHAGENT_ARGS+="-m $MAC_ADDRESS"
elif [ "$platform" == "cavium" ]; then
ORCHAGENT_ARGS+="-m $MAC_ADDRESS"
+elif [ "$ASIC" == "barefoot" ]; then
+ ORCHAGENT_ARGS+="-m $MAC_ADDRESS"
fi
exec /usr/bin/orchagent ${ORCHAGENT_ARGS}
diff --git a/dockers/docker-saiserver-bfn/Dockerfile b/dockers/docker-saiserver-bfn/Dockerfile
new file mode 100755
index 0000000000..427a551e00
--- /dev/null
+++ b/dockers/docker-saiserver-bfn/Dockerfile
@@ -0,0 +1,38 @@
+FROM docker-base
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update
+
+COPY ["deps/applibs_*.deb", "/deps/applibs-dev_*.deb", "/deps/sx-complib_*.deb", "/deps/sxd-libs_*.deb", "/deps/sx-scew_*.deb", "/deps/sx-examples_*.deb", "/deps/sx-gen-utils_*.deb", "/deps/python-sdk-api_*.deb", "/deps/iproute2_*.deb", "/deps/mlnx-sai_*.deb", "/deps/libthrift-0.9.3_*.deb", "/deps/libnl-3-200_*.deb", "/deps/libnl-genl-3-200_*.deb", "/deps/libnl-route-3-200_*.deb", "/deps/"]
+
+RUN dpkg_apt() { [ -f $1 ] && { dpkg -i $1 || apt-get -y install -f; } || return 1; }; \
+ dpkg_apt /deps/applibs_*.deb \
+ && dpkg_apt /deps/applibs-dev_*.deb \
+ && dpkg_apt /deps/sx-complib_*.deb \
+ && dpkg_apt /deps/sxd-libs_*.deb \
+ && dpkg_apt /deps/sx-scew_*.deb \
+ && dpkg_apt /deps/sx-examples_*.deb \
+ && dpkg_apt /deps/sx-gen-utils_*.deb \
+ && dpkg_apt /deps/python-sdk-api_*.deb \
+ && dpkg_apt /deps/iproute2_*.deb \
+ && dpkg_apt /deps/mlnx-sai_*.deb \
+ && dpkg_apt /deps/libthrift-0.9.3_*.deb \
+ && dpkg_apt /deps/libnl-3-200_*.deb \
+ && dpkg_apt /deps/libnl-genl-3-200_*.deb \
+ && dpkg_apt /deps/libnl-route-3-200_*.deb
+
+COPY ["deps/saiserver", "start.sh", "/usr/bin/"]
+
+COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
+
+COPY ["profile.ini", "portmap.ini", "/etc/sai/"]
+
+
+## Clean up
+RUN apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y
+RUN rm -rf /deps
+
+ENTRYPOINT ["/usr/bin/supervisord"]
+
diff --git a/dockers/docker-saiserver-bfn/portmap.ini b/dockers/docker-saiserver-bfn/portmap.ini
new file mode 100644
index 0000000000..4d3be08ce5
--- /dev/null
+++ b/dockers/docker-saiserver-bfn/portmap.ini
@@ -0,0 +1,33 @@
+# alias lanes
+Ethernet1 0,1,2,3
+Ethernet2 4,5,6,7
+Ethernet3 8,9,10,11
+Ethernet4 12,13,14,15
+Ethernet5 16,17,18,19
+Ethernet6 20,21,22,23
+Ethernet7 24,25,26,27
+Ethernet8 28,29,30,31
+Ethernet9 32,33,34,35
+Ethernet10 36,37,38,39
+Ethernet11 40,41,42,43
+Ethernet12 44,45,46,47
+Ethernet13 48,49,50,51
+Ethernet14 52,53,54,55
+Ethernet15 56,57,58,59
+Ethernet16 60,61,62,63
+Ethernet17 64,65,66,67
+Ethernet18 68,69,70,71
+Ethernet19 72,73,74,75
+Ethernet20 76,77,78,79
+Ethernet21 80,81,82,83
+Ethernet22 84,85,86,87
+Ethernet23 88,89,90,91
+Ethernet24 92,93,94,95
+Ethernet25 96,97,98,99
+Ethernet26 100,101,102,103
+Ethernet27 104,105,106,107
+Ethernet28 108,109,110,111
+Ethernet29 112,113,114,115
+Ethernet30 116,117,118,119
+Ethernet31 120,121,122,123
+Ethernet32 124,125,126,127
\ No newline at end of file
diff --git a/dockers/docker-saiserver-bfn/profile.ini b/dockers/docker-saiserver-bfn/profile.ini
new file mode 100644
index 0000000000..b20b2c6f0e
--- /dev/null
+++ b/dockers/docker-saiserver-bfn/profile.ini
@@ -0,0 +1 @@
+SAI_INIT_CONFIG_FILE=/usr/share/sai_tofino.xml
diff --git a/dockers/docker-saiserver-bfn/sai_tofino.xml b/dockers/docker-saiserver-bfn/sai_tofino.xml
new file mode 100644
index 0000000000..139597f9cb
--- /dev/null
+++ b/dockers/docker-saiserver-bfn/sai_tofino.xml
@@ -0,0 +1,2 @@
+
+
diff --git a/dockers/docker-saiserver-bfn/start.sh b/dockers/docker-saiserver-bfn/start.sh
new file mode 100755
index 0000000000..57ee5036de
--- /dev/null
+++ b/dockers/docker-saiserver-bfn/start.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+start_mlnx()
+{
+ [ -e /dev/sxdevs/sxcdev ] || ( mkdir -p /dev/sxdevs && mknod /dev/sxdevs/sxcdev c 231 193 )
+}
+
+
+rm -f /var/run/rsyslogd.pid
+
+supervisorctl start rsyslogd
+
+start_mlnx
+
+supervisorctl start saiserver
+
diff --git a/dockers/docker-saiserver-bfn/supervisord.conf b/dockers/docker-saiserver-bfn/supervisord.conf
new file mode 100644
index 0000000000..e09ac3cbb4
--- /dev/null
+++ b/dockers/docker-saiserver-bfn/supervisord.conf
@@ -0,0 +1,29 @@
+[supervisord]
+logfile_maxbytes=1MB
+logfile_backups=2
+nodaemon=true
+
+[program:start.sh]
+command=/usr/bin/start.sh
+priority=1
+autostart=true
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
+[program:rsyslogd]
+command=/usr/sbin/rsyslogd -n
+priority=2
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
+[program:saiserver]
+command=/usr/bin/saiserver -p /etc/sai/profile.ini -f /etc/sai/portmap.ini
+priority=3
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
diff --git a/files/image_config/interfaces/interfaces.j2 b/files/image_config/interfaces/interfaces.j2
index 2fdd04804c..7822858ca0 100644
--- a/files/image_config/interfaces/interfaces.j2
+++ b/files/image_config/interfaces/interfaces.j2
@@ -18,6 +18,11 @@ iface lo {{ 'inet' if prefix | ipv4 else 'inet6' }} static
{% endfor %}
{% endblock loopback %}
{% block mgmt_interface %}
+# BMC interface
+auto usb0
+iface usb0 inet static
+ address 192.168.0.2
+ netmask 255.255.255.0
# The management network interface
auto eth0
{% if MGMT_INTERFACE %}
diff --git a/platform/barefoot/bfn-sai.mk b/platform/barefoot/bfn-sai.mk
new file mode 100644
index 0000000000..4f27a7ae18
--- /dev/null
+++ b/platform/barefoot/bfn-sai.mk
@@ -0,0 +1,6 @@
+BFN_SAI = bfnsdk_1.0.0_amd64.deb
+$(BFN_SAI)_URL = "https://www.dropbox.com/s/4ljk6hzw82rudsr/bfnsdk_1.0.0_amd64.deb?dl=0"
+# $(BFN_SAI_DEV)_URL = "https://www.dropbox.com/s/4ljk6hzw82rudsr/bfnsdk_1.0.0_amd64.deb?dl=0"
+
+SONIC_ONLINE_DEBS += $(BFN_SAI) # $(BFN_SAI_DEV)
+$(BFN_SAI_DEV)_DEPENDS += $(BFN_SAI)
diff --git a/platform/barefoot/docker-orchagent-bfn.mk b/platform/barefoot/docker-orchagent-bfn.mk
new file mode 100644
index 0000000000..ac338f2ba7
--- /dev/null
+++ b/platform/barefoot/docker-orchagent-bfn.mk
@@ -0,0 +1,18 @@
+# docker image for orchagent
+
+DOCKER_ORCHAGENT_BFN = docker-orchagent-bfn.gz
+$(DOCKER_ORCHAGENT_BFN)_PATH = $(DOCKERS_PATH)/docker-orchagent
+$(DOCKER_ORCHAGENT_BFN)_DEPENDS += $(SWSS) $(REDIS_TOOLS)
+$(DOCKER_ORCHAGENT_BFN)_LOAD_DOCKERS += $(DOCKER_CONFIG_ENGINE)
+SONIC_DOCKER_IMAGES += $(DOCKER_ORCHAGENT_BFN)
+SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_ORCHAGENT_BFN)
+
+$(DOCKER_ORCHAGENT_BFN)_CONTAINER_NAME = swss
+$(DOCKER_ORCHAGENT_BFN)_RUN_OPT += --net=host --privileged -t
+$(DOCKER_ORCHAGENT_BFN)_RUN_OPT += -v /etc/network/interfaces:/etc/network/interfaces:ro
+$(DOCKER_ORCHAGENT_BFN)_RUN_OPT += -v /etc/network/interfaces.d/:/etc/network/interfaces.d/:ro
+$(DOCKER_ORCHAGENT_BFN)_RUN_OPT += -v /host/machine.conf:/host/machine.conf:ro
+$(DOCKER_ORCHAGENT_BFN)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
+$(DOCKER_ORCHAGENT_BFN)_RUN_OPT += -v /var/log/swss:/var/log/swss:rw
+
+$(DOCKER_ORCHAGENT_BFN)_BASE_IMAGE_FILES += swssloglevel:/usr/bin/swssloglevel
diff --git a/platform/barefoot/docker-ptf-bfn.mk b/platform/barefoot/docker-ptf-bfn.mk
new file mode 100644
index 0000000000..573e9cd9cf
--- /dev/null
+++ b/platform/barefoot/docker-ptf-bfn.mk
@@ -0,0 +1,5 @@
+# docker image for docker-ptf
+
+DOCKER_PTF_BFN = docker-ptf-bfn.gz
+$(DOCKER_PTF_BFN)_PATH = $(DOCKERS_PATH)/docker-ptf-saithrift
+$(DOCKER_PTF_BFN)_LOAD_DOCKERS += $(DOCKER_PTF)
diff --git a/platform/barefoot/docker-syncd-bfn-rpc.mk b/platform/barefoot/docker-syncd-bfn-rpc.mk
new file mode 100644
index 0000000000..61f5570c16
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn-rpc.mk
@@ -0,0 +1,15 @@
+# docker image for syncd with rpc
+
+DOCKER_SYNCD_BFN_RPC = docker-syncd-bfn-rpc.gz
+$(DOCKER_SYNCD_BFN_RPC)_PATH = $(PLATFORM_PATH)/docker-syncd-bfn-rpc
+$(DOCKER_SYNCD_BFN_RPC)_DEPENDS += $(SYNCD_RPC) $(LIBTHRIFT)
+$(DOCKER_SYNCD_BFN_RPC)_LOAD_DOCKERS += $(DOCKER_SYNCD_BFN)
+SONIC_DOCKER_IMAGES += $(DOCKER_SYNCD_BFN_RPC)
+ifeq ($(ENABLE_SYNCD_RPC),y)
+SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_SYNCD_BFN_RPC)
+endif
+
+$(DOCKER_SYNCD_BFN_RPC)_CONTAINER_NAME = syncd
+$(DOCKER_SYNCD_BFN_RPC)_RUN_OPT += --net=host --privileged -t
+$(DOCKER_SYNCD_BFN_RPC)_RUN_OPT += -v /host/machine.conf:/etc/machine.conf
+$(DOCKER_SYNCD_BFN_RPC)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
diff --git a/platform/barefoot/docker-syncd-bfn-rpc/Dockerfile.j2 b/platform/barefoot/docker-syncd-bfn-rpc/Dockerfile.j2
new file mode 100644
index 0000000000..590f80aacd
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn-rpc/Dockerfile.j2
@@ -0,0 +1,52 @@
+FROM docker-syncd-bfn
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+COPY \
+{% for deb in docker_syncd_bfn.split(' ') -%}
+debs/{{ deb }}{{' '}}
+{%- endfor -%}
+debs/
+
+RUN dpkg -P syncd
+
+RUN dpkg_apt() { [ -f $1 ] && { dpkg -i $1 || apt-get -y install -f; } || return 1; } ; \
+{% for deb in docker_syncd_bfn.split(' ') -%}
+dpkg_apt debs/{{ deb }}{{'; '}}
+{%- endfor %}
+
+## Pre-install the fundamental packages
+RUN apt-get update \
+ && apt-get -y install \
+ net-tools \
+ python-pip \
+ build-essential \
+ libssl-dev \
+ libffi-dev \
+ python-dev \
+ wget \
+ cmake \
+ && wget https://github.com/nanomsg/nanomsg/archive/1.0.0.tar.gz \
+ && tar xvfz 1.0.0.tar.gz \
+ && cd nanomsg-1.0.0 \
+ && mkdir -p build \
+ && cmake . \
+ && make install \
+ && ldconfig \
+ && cd .. \
+ && rm -fr nanomsg-1.0.0 \
+ && rm -f 1.0.0.tar.gz \
+ && pip install cffi==1.7.0 \
+ && pip install --upgrade cffi==1.7.0 \
+ && pip install nnpy \
+ && mkdir -p /opt \
+ && cd /opt \
+ && wget https://raw.githubusercontent.com/p4lang/ptf/master/ptf_nn/ptf_nn_agent.py \
+ && apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y \
+ && rm -rf /root/deps
+
+COPY ["ptf_nn_agent.conf", "/etc/supervisor/conf.d/"]
+
+ENTRYPOINT ["/usr/bin/supervisord"]
+
diff --git a/platform/barefoot/docker-syncd-bfn-rpc/ptf_nn_agent.conf b/platform/barefoot/docker-syncd-bfn-rpc/ptf_nn_agent.conf
new file mode 100644
index 0000000000..fa1ed0eb16
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn-rpc/ptf_nn_agent.conf
@@ -0,0 +1,10 @@
+[program:ptf_nn_agent]
+command=/usr/bin/python /opt/ptf_nn_agent.py --device-socket 1@tcp://0.0.0.0:10900 -i 1-3@Ethernet12 --set-iface-rcv-buffer=109430400
+process_name=ptf_nn_agent
+stdout_logfile=/tmp/ptf_nn_agent.out.log
+stderr_logfile=/tmp/ptf_nn_agent.err.log
+redirect_stderr=false
+autostart=true
+autorestart=true
+startsecs=1
+numprocs=1
diff --git a/platform/barefoot/docker-syncd-bfn.mk b/platform/barefoot/docker-syncd-bfn.mk
new file mode 100644
index 0000000000..22bb10763e
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn.mk
@@ -0,0 +1,15 @@
+# docker image for syncd
+
+DOCKER_SYNCD_BFN = docker-syncd-bfn.gz
+$(DOCKER_SYNCD_BFN)_PATH = $(PLATFORM_PATH)/docker-syncd-bfn
+$(DOCKER_SYNCD_BFN)_DEPENDS += $(SYNCD)
+$(DOCKER_SYNCD_BFN)_LOAD_DOCKERS += $(DOCKER_CONFIG_ENGINE)
+SONIC_DOCKER_IMAGES += $(DOCKER_SYNCD_BFN)
+ifneq ($(ENABLE_SYNCD_RPC),y)
+SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_SYNCD_BFN)
+endif
+
+$(DOCKER_SYNCD_BFN)_CONTAINER_NAME = syncd
+$(DOCKER_SYNCD_BFN)_RUN_OPT += --net=host --privileged -t
+$(DOCKER_SYNCD_BFN)_RUN_OPT += -v /host/machine.conf:/etc/machine.conf
+$(DOCKER_SYNCD_BFN)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
diff --git a/platform/barefoot/docker-syncd-bfn/Dockerfile.j2 b/platform/barefoot/docker-syncd-bfn/Dockerfile.j2
new file mode 100755
index 0000000000..54e55e1108
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn/Dockerfile.j2
@@ -0,0 +1,29 @@
+FROM docker-config-engine
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update
+
+COPY \
+{% for deb in docker_syncd_bfn_debs.split(' ') -%}
+debs/{{ deb }}{{' '}}
+{%- endfor -%}
+debs/
+
+RUN apt-get install -y libxml2 libpcap-dev libusb-1.0-0-dev libcurl3 libcurl4-gnutls-dev
+
+RUN dpkg -i \
+{% for deb in docker_syncd_bfn_debs.split(' ') -%}
+debs/{{ deb }}{{' '}}
+{%- endfor %}
+
+COPY ["start.sh", "/usr/bin/"]
+COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
+
+## Clean up
+RUN apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y
+RUN rm -rf /debs
+
+ENTRYPOINT ["/usr/bin/supervisord"]
+
diff --git a/platform/barefoot/docker-syncd-bfn/start.sh b/platform/barefoot/docker-syncd-bfn/start.sh
new file mode 100755
index 0000000000..1a39db4a9d
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn/start.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+rm -f /var/run/rsyslogd.pid
+
+supervisorctl start rsyslogd
+
+. /opt/bfn/install/bin/dma_setup.sh
+# . /opt/bfn/install/bin/bf_kdrv_mod_load /opt/bfn/install
+LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/bfn/install/lib supervisorctl start syncd
diff --git a/platform/barefoot/docker-syncd-bfn/supervisord.conf b/platform/barefoot/docker-syncd-bfn/supervisord.conf
new file mode 100644
index 0000000000..1e015fef93
--- /dev/null
+++ b/platform/barefoot/docker-syncd-bfn/supervisord.conf
@@ -0,0 +1,29 @@
+[supervisord]
+logfile_maxbytes=1MB
+logfile_backups=2
+nodaemon=true
+
+[program:start.sh]
+command=/usr/bin/start.sh
+priority=1
+autostart=true
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
+[program:rsyslogd]
+command=/usr/sbin/rsyslogd -n
+priority=2
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
+[program:syncd]
+command=/usr/bin/syncd_start.sh
+priority=3
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
diff --git a/platform/barefoot/libsaithrift-dev.mk b/platform/barefoot/libsaithrift-dev.mk
new file mode 100644
index 0000000000..c9c8cbb3ad
--- /dev/null
+++ b/platform/barefoot/libsaithrift-dev.mk
@@ -0,0 +1,7 @@
+# libsaithrift-dev package
+
+LIBSAITHRIFT_DEV_BFN = libsaithrift-dev_0.9.4_amd64.deb
+$(LIBSAITHRIFT_DEV_BFN)_SRC_PATH = $(SRC_PATH)/SAI
+$(LIBSAITHRIFT_DEV_BFN)_DEPENDS += $(LIBTHRIFT) $(LIBTHRIFT_DEV) $(THRIFT_COMPILER) $(BFN_SAI) $(BFN_SAI_DEV)
+$(LIBSAITHRIFT_DEV_BFN)_RDEPENDS += $(LIBTHRIFT) $(BFN_SAI)
+#SONIC_DPKG_DEBS += $(LIBSAITHRIFT_DEV_BFN)
diff --git a/platform/barefoot/one-image.mk b/platform/barefoot/one-image.mk
new file mode 100644
index 0000000000..52cc9ba369
--- /dev/null
+++ b/platform/barefoot/one-image.mk
@@ -0,0 +1,11 @@
+# sonic one image installer
+
+SONIC_ONE_IMAGE = sonic-barefoot.bin
+$(SONIC_ONE_IMAGE)_MACHINE = barefoot
+$(SONIC_ONE_IMAGE)_IMAGE_TYPE = onie
+$(SONIC_ONE_IMAGE)_INSTALLS += $(BFN_PLATFORM_MODULE)
+$(SONIC_ONE_IMAGE)_INSTALLS += $(BFN_MONTARA_PLATFORM_MODULE)
+$(SONIC_ONE_IMAGE)_DEPENDS += $(BFN_PLATFORM_MODULE)
+$(SONIC_ONE_IMAGE)_DEPENDS += $(BFN_MONTARA_PLATFORM_MODULE)
+$(SONIC_ONE_IMAGE)_DOCKERS += $(SONIC_INSTALL_DOCKER_IMAGES)
+SONIC_INSTALLERS += $(SONIC_ONE_IMAGE)
diff --git a/platform/barefoot/platform-modules-bfn-montara.mk b/platform/barefoot/platform-modules-bfn-montara.mk
new file mode 100644
index 0000000000..113faf201e
--- /dev/null
+++ b/platform/barefoot/platform-modules-bfn-montara.mk
@@ -0,0 +1,11 @@
+# BFN Platform modules
+
+BFN_MONTARA_PLATFORM_MODULE_VERSION = 1.0
+
+export BFN_MONTARA_PLATFORM_MODULE_VERSION
+
+BFN_MONTARA_PLATFORM_MODULE = platform-modules-bfn-montara_$(BFN_MONTARA_PLATFORM_MODULE_VERSION)_amd64.deb
+$(BFN_MONTARA_PLATFORM_MODULE)_SRC_PATH = $(PLATFORM_PATH)/sonic-platform-modules-bfn-montara
+$(BFN_MONTARA_PLATFORM_MODULE)_DEPENDS += $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON)
+$(BFN_MONTARA_PLATFORM_MODULE)_PLATFORM = x86_64-accton_wedge100bf_32x-r0
+SONIC_DPKG_DEBS += $(BFN_MONTARA_PLATFORM_MODULE)
diff --git a/platform/barefoot/platform-modules-bfn.mk b/platform/barefoot/platform-modules-bfn.mk
new file mode 100644
index 0000000000..3f76e94aa0
--- /dev/null
+++ b/platform/barefoot/platform-modules-bfn.mk
@@ -0,0 +1,11 @@
+# BFN Platform modules
+
+BFN_PLATFORM_MODULE_VERSION = 1.0
+
+export BFN_PLATFORM_MODULE_VERSION
+
+BFN_PLATFORM_MODULE = platform-modules-bfn_$(BFN_PLATFORM_MODULE_VERSION)_amd64.deb
+$(BFN_PLATFORM_MODULE)_SRC_PATH = $(PLATFORM_PATH)/sonic-platform-modules-bfn
+$(BFN_PLATFORM_MODULE)_DEPENDS += $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON)
+$(BFN_PLATFORM_MODULE)_PLATFORM = x86_64-accton_wedge100bf_65x-r0
+SONIC_DPKG_DEBS += $(BFN_PLATFORM_MODULE)
diff --git a/platform/barefoot/platform.conf b/platform/barefoot/platform.conf
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/platform/barefoot/python-saithrift.mk b/platform/barefoot/python-saithrift.mk
new file mode 100644
index 0000000000..ba4846402f
--- /dev/null
+++ b/platform/barefoot/python-saithrift.mk
@@ -0,0 +1,6 @@
+# python-saithrift package
+
+PYTHON_SAITHRIFT_BFN = python-saithrift_0.9.4_amd64.deb
+$(PYTHON_SAITHRIFT_BFN)_SRC_PATH = $(SRC_PATH)/SAI
+$(PYTHON_SAITHRIFT_BFN)_DEPENDS += $(BFN_SAI_DEV) $(BFN_SAI) $(THRIFT_COMPILER) $(PYTHON_THRIFT) $(LIBTHRIFT_DEV)
+#SONIC_DPKG_DEBS += $(PYTHON_SAITHRIFT_BFN)
diff --git a/platform/barefoot/rules.mk b/platform/barefoot/rules.mk
new file mode 100644
index 0000000000..507e6b7dae
--- /dev/null
+++ b/platform/barefoot/rules.mk
@@ -0,0 +1,19 @@
+include $(PLATFORM_PATH)/platform-modules-bfn.mk
+include $(PLATFORM_PATH)/platform-modules-bfn-montara.mk
+include $(PLATFORM_PATH)/bfn-sai.mk
+include $(PLATFORM_PATH)/docker-syncd-bfn.mk
+include $(PLATFORM_PATH)/docker-syncd-bfn-rpc.mk
+include $(PLATFORM_PATH)/docker-orchagent-bfn.mk
+include $(PLATFORM_PATH)/one-image.mk
+include $(PLATFORM_PATH)/libsaithrift-dev.mk
+include $(PLATFORM_PATH)/python-saithrift.mk
+include $(PLATFORM_PATH)/docker-ptf-bfn.mk
+
+SONIC_ALL += $(SONIC_ONE_IMAGE) \
+ $(DOCKER_FPM)
+
+# Inject sai into sairedis
+$(LIBSAIREDIS)_DEPENDS += $(BFN_SAI) #$(LIBSAITHRIFT_DEV_BFN)
+
+# Runtime dependency on sai is set only for syncd
+$(SYNCD)_RDEPENDS += $(BFN_SAI)
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/LICENSE b/platform/barefoot/sonic-platform-modules-bfn-montara/LICENSE
new file mode 100644
index 0000000000..676cdeec72
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/LICENSE
@@ -0,0 +1,15 @@
+Copyright (C) 2016 Microsoft, Inc
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/MAINTAINERS b/platform/barefoot/sonic-platform-modules-bfn-montara/MAINTAINERS
new file mode 100644
index 0000000000..05b0cea082
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/MAINTAINERS
@@ -0,0 +1,7 @@
+# This file describes the maintainers for sonic-platform-modules-bfn
+# See the SONiC project governance document for more information
+
+Name = "Daxay"
+Email = "support@barefootnetworks.com"
+Github = barefootnetworks
+Mailinglist = sonicproject@googlegroups.com
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/README.md b/platform/barefoot/sonic-platform-modules-bfn-montara/README.md
new file mode 100644
index 0000000000..5dc055a1d9
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/README.md
@@ -0,0 +1,2 @@
+# sonic-platform-modules-bfn
+Device drivers for support of BFN platform for the SONiC project
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/debian/changelog b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/changelog
new file mode 100644
index 0000000000..070927fd78
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/changelog
@@ -0,0 +1,5 @@
+platform-modules-bfn-montara (1.0) unstable; urgency=low
+
+ * Initial release
+
+ -- Shuotian Cheng Mon, 11 Nov 2015 11:11:11 -0800
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/debian/compat b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/compat
new file mode 100644
index 0000000000..45a4fb75db
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/compat
@@ -0,0 +1 @@
+8
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/debian/control b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/control
new file mode 100644
index 0000000000..1281dffd3f
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/control
@@ -0,0 +1,12 @@
+Source: platform-modules-bfn-montara
+Section: main
+Priority: extra
+Maintainer: Shuotian Cheng
+Build-Depends: debhelper (>= 8.0.0), bzip2
+Standards-Version: 3.9.3
+
+Package: platform-modules-bfn-montara
+Architecture: amd64
+Depends: linux-image-3.16.0-4-amd64
+Description: kernel modules for platform devices such as fan, led, sfp
+
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/debian/copyright b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/copyright
new file mode 100644
index 0000000000..ade42b7aa7
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/copyright
@@ -0,0 +1,15 @@
+Provides linux kernel driver for BF PCIe devices
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/debian/files b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/files
new file mode 100644
index 0000000000..73e4715522
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/files
@@ -0,0 +1 @@
+platform-modules-bfn-montara_1.0_amd64.deb main extra
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/debian/rules b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/rules
new file mode 100755
index 0000000000..e48edc3049
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/debian/rules
@@ -0,0 +1,32 @@
+#!/usr/bin/make -f
+
+export INSTALL_MOD_DIR:=extra
+
+PACKAGE_NAME := platform-modules-bfn-montara
+KVERSION ?= $(shell uname -r)
+KERNEL_SRC := /lib/modules/$(KVERSION)
+MODULE_SRC := $(shell pwd)/modules
+SCRIPT_SRC := $(shell pwd)/scripts
+
+%:
+ dh $@
+
+override_dh_auto_build:
+ make -C $(KERNEL_SRC)/build M=$(MODULE_SRC)
+
+override_dh_auto_install:
+ dh_installdirs -p$(PACKAGE_NAME) $(KERNEL_SRC)/$(INSTALL_MOD_DIR)
+ cp $(MODULE_SRC)/*.ko debian/$(PACKAGE_NAME)/$(KERNEL_SRC)/$(INSTALL_MOD_DIR)
+ dh_installdirs -p$(PACKAGE_NAME) usr/local/bin
+ cp -r $(SCRIPT_SRC)/* debian/$(PACKAGE_NAME)/usr/local/bin
+
+override_dh_usrlocal:
+
+override_dh_pysupport:
+
+override_dh_clean:
+ dh_clean
+ rm -f $(MODULE_SRC)/*.o $(MODULE_SRC)/*.ko $(MODULE_SRC)/*.mod.c $(MODULE_SRC)/.*.cmd
+ rm -f $(MODULE_SRC)/Module.markers $(MODULE_SRC)/Module.symvers $(MODULE_SRC)/modules.order
+ rm -rf $(MODULE_SRC)/.tmp_versions
+
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/modules/Makefile b/platform/barefoot/sonic-platform-modules-bfn-montara/modules/Makefile
new file mode 120000
index 0000000000..d394585dd2
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/modules/Makefile
@@ -0,0 +1 @@
+../../sonic-platform-modules-bfn/modules/Makefile
\ No newline at end of file
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/modules/bf_kdrv.c b/platform/barefoot/sonic-platform-modules-bfn-montara/modules/bf_kdrv.c
new file mode 120000
index 0000000000..959d811823
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/modules/bf_kdrv.c
@@ -0,0 +1 @@
+../../sonic-platform-modules-bfn/modules/bf_kdrv.c
\ No newline at end of file
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/modules/bf_tun.c b/platform/barefoot/sonic-platform-modules-bfn-montara/modules/bf_tun.c
new file mode 120000
index 0000000000..ea380c3075
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/modules/bf_tun.c
@@ -0,0 +1 @@
+../../sonic-platform-modules-bfn/modules/bf_tun.c
\ No newline at end of file
diff --git a/platform/barefoot/sonic-platform-modules-bfn-montara/scripts/test b/platform/barefoot/sonic-platform-modules-bfn-montara/scripts/test
new file mode 100755
index 0000000000..38327722c9
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn-montara/scripts/test
@@ -0,0 +1 @@
+echo "test"
diff --git a/platform/barefoot/sonic-platform-modules-bfn/LICENSE b/platform/barefoot/sonic-platform-modules-bfn/LICENSE
new file mode 100644
index 0000000000..676cdeec72
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/LICENSE
@@ -0,0 +1,15 @@
+Copyright (C) 2016 Microsoft, Inc
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
diff --git a/platform/barefoot/sonic-platform-modules-bfn/MAINTAINERS b/platform/barefoot/sonic-platform-modules-bfn/MAINTAINERS
new file mode 100644
index 0000000000..05b0cea082
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/MAINTAINERS
@@ -0,0 +1,7 @@
+# This file describes the maintainers for sonic-platform-modules-bfn
+# See the SONiC project governance document for more information
+
+Name = "Daxay"
+Email = "support@barefootnetworks.com"
+Github = barefootnetworks
+Mailinglist = sonicproject@googlegroups.com
diff --git a/platform/barefoot/sonic-platform-modules-bfn/README.md b/platform/barefoot/sonic-platform-modules-bfn/README.md
new file mode 100644
index 0000000000..5dc055a1d9
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/README.md
@@ -0,0 +1,2 @@
+# sonic-platform-modules-bfn
+Device drivers for support of BFN platform for the SONiC project
diff --git a/platform/barefoot/sonic-platform-modules-bfn/debian/changelog b/platform/barefoot/sonic-platform-modules-bfn/debian/changelog
new file mode 100644
index 0000000000..47b18ef78f
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/debian/changelog
@@ -0,0 +1,5 @@
+platform-modules-bfn (1.0) unstable; urgency=low
+
+ * Initial release
+
+ -- Shuotian Cheng Mon, 11 Nov 2015 11:11:11 -0800
diff --git a/platform/barefoot/sonic-platform-modules-bfn/debian/compat b/platform/barefoot/sonic-platform-modules-bfn/debian/compat
new file mode 100644
index 0000000000..45a4fb75db
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/debian/compat
@@ -0,0 +1 @@
+8
diff --git a/platform/barefoot/sonic-platform-modules-bfn/debian/control b/platform/barefoot/sonic-platform-modules-bfn/debian/control
new file mode 100644
index 0000000000..5bdcd7acfc
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/debian/control
@@ -0,0 +1,12 @@
+Source: platform-modules-bfn
+Section: main
+Priority: extra
+Maintainer: Shuotian Cheng
+Build-Depends: debhelper (>= 8.0.0), bzip2
+Standards-Version: 3.9.3
+
+Package: platform-modules-bfn
+Architecture: amd64
+Depends: linux-image-3.16.0-4-amd64
+Description: kernel modules for platform devices such as fan, led, sfp
+
diff --git a/platform/barefoot/sonic-platform-modules-bfn/debian/copyright b/platform/barefoot/sonic-platform-modules-bfn/debian/copyright
new file mode 100644
index 0000000000..ade42b7aa7
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/debian/copyright
@@ -0,0 +1,15 @@
+Provides linux kernel driver for BF PCIe devices
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
diff --git a/platform/barefoot/sonic-platform-modules-bfn/debian/files b/platform/barefoot/sonic-platform-modules-bfn/debian/files
new file mode 100644
index 0000000000..1cfb92c60a
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/debian/files
@@ -0,0 +1 @@
+platform-modules-bfn_1.0_amd64.deb main extra
diff --git a/platform/barefoot/sonic-platform-modules-bfn/debian/rules b/platform/barefoot/sonic-platform-modules-bfn/debian/rules
new file mode 100755
index 0000000000..73aa5d84da
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/debian/rules
@@ -0,0 +1,32 @@
+#!/usr/bin/make -f
+
+export INSTALL_MOD_DIR:=extra
+
+PACKAGE_NAME := platform-modules-bfn
+KVERSION ?= $(shell uname -r)
+KERNEL_SRC := /lib/modules/$(KVERSION)
+MODULE_SRC := $(shell pwd)/modules
+SCRIPT_SRC := $(shell pwd)/scripts
+
+%:
+ dh $@
+
+override_dh_auto_build:
+ make -C $(KERNEL_SRC)/build M=$(MODULE_SRC)
+
+override_dh_auto_install:
+ dh_installdirs -p$(PACKAGE_NAME) $(KERNEL_SRC)/$(INSTALL_MOD_DIR)
+ cp $(MODULE_SRC)/*.ko debian/$(PACKAGE_NAME)/$(KERNEL_SRC)/$(INSTALL_MOD_DIR)
+ dh_installdirs -p$(PACKAGE_NAME) usr/local/bin
+ cp -r $(SCRIPT_SRC)/* debian/$(PACKAGE_NAME)/usr/local/bin
+
+override_dh_usrlocal:
+
+override_dh_pysupport:
+
+override_dh_clean:
+ dh_clean
+ rm -f $(MODULE_SRC)/*.o $(MODULE_SRC)/*.ko $(MODULE_SRC)/*.mod.c $(MODULE_SRC)/.*.cmd
+ rm -f $(MODULE_SRC)/Module.markers $(MODULE_SRC)/Module.symvers $(MODULE_SRC)/modules.order
+ rm -rf $(MODULE_SRC)/.tmp_versions
+
diff --git a/platform/barefoot/sonic-platform-modules-bfn/modules/Makefile b/platform/barefoot/sonic-platform-modules-bfn/modules/Makefile
new file mode 100644
index 0000000000..d180b29f6a
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/modules/Makefile
@@ -0,0 +1,2 @@
+obj-m := bf_kdrv.o
+obj-m += bf_tun.o
diff --git a/platform/barefoot/sonic-platform-modules-bfn/modules/bf_kdrv.c b/platform/barefoot/sonic-platform-modules-bfn/modules/bf_kdrv.c
new file mode 100644
index 0000000000..f486a41644
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/modules/bf_kdrv.c
@@ -0,0 +1,1152 @@
+/*******************************************************************************
+ * BAREFOOT NETWORKS CONFIDENTIAL & PROPRIETARY
+ *
+ * Copyright (c) 2015-2016 Barefoot Networks, Inc.
+
+ * All Rights Reserved.
+ *
+ * NOTICE: All information contained herein is, and remains the property of
+ * Barefoot Networks, Inc. and its suppliers, if any. The intellectual and
+ * technical concepts contained herein are proprietary to Barefoot Networks,
+ * Inc.
+ * and its suppliers and may be covered by U.S. and Foreign Patents, patents in
+ * process, and are protected by trade secret or copyright law.
+ * Dissemination of this information or reproduction of this material is
+ * strictly forbidden unless prior written permission is obtained from
+ * Barefoot Networks, Inc.
+ *
+ * No warranty, explicit or implicit is provided, unless granted under a
+ * written agreement with Barefoot Networks, Inc.
+ *
+ * $Id: $
+ *
+ ******************************************************************************/
+/**
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Barefoot Networks. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the...
+ *
+ **/
+
+/* bf_drv kernel module
+ *
+ * This is kernel mode driver for Tofino chip.
+ * Provides user space mmap service and user space "wait for interrupt"
+ * and "enable interrupt" services.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 0)
+//#error unsupported linux kernel version
+#endif
+
+/* TBD: Need to build with CONFIG_PCI_MSI */
+extern int pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec);
+extern int pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries, int minvec, int maxvec);
+
+#define PCI_VENDOR_ID_BF 0x1d1c
+#define TOFINO_DEV_ID 1
+
+#ifndef PCI_MSIX_ENTRY_SIZE
+#define PCI_MSIX_ENTRY_SIZE 16
+#define PCI_MSIX_ENTRY_LOWER_ADDR 0
+#define PCI_MSIX_ENTRY_UPPER_ADDR 4
+#define PCI_MSIX_ENTRY_DATA 8
+#define PCI_MSIX_ENTRY_VECTOR_CTRL 12
+#define PCI_MSIX_ENTRY_CTRL_MASKBIT 1
+#endif
+
+#define BF_CLASS_NAME "bf"
+#define BF_MAX_DEVICE_CNT 256
+#define BF_INTR_MODE_NONE_NAME "none"
+#define BF_INTR_MODE_LEGACY_NAME "legacy"
+#define BF_INTR_MODE_MSI_NAME "msi"
+#define BF_INTR_MODE_MSIX_NAME "msix"
+#define BF_MAX_BAR_MAPS 6
+#define BF_MSIX_ENTRY_CNT 128 /* TBD make it 512 */
+#define BF_MSI_ENTRY_CNT 2
+
+/* interrupt mode */
+enum bf_intr_mode {
+ BF_INTR_MODE_NONE = 0,
+ BF_INTR_MODE_LEGACY,
+ BF_INTR_MODE_MSI,
+ BF_INTR_MODE_MSIX
+};
+
+/* device memory */
+struct bf_dev_mem {
+ const char *name;
+ phys_addr_t addr;
+ resource_size_t size;
+ void __iomem *internal_addr;
+};
+
+/* device information */
+struct bf_dev_info {
+ struct module *owner;
+ struct device *dev;
+ int minor;
+ atomic_t event[BF_MSIX_ENTRY_CNT];
+ struct fasync_struct *async_queue;
+ wait_queue_head_t wait;
+ const char *version;
+ struct bf_dev_mem mem[BF_MAX_BAR_MAPS];
+ struct msix_entry *msix_entries;
+ long irq; /* first irq vector */
+ int num_irq; /* number of irq vectors */
+ unsigned long irq_flags;/* sharable ?? */
+ int pci_error_state; /* was there a pci bus error */
+};
+
+/* cookie to be passed to IRQ handler, useful especially with MSIX */
+struct bf_int_vector {
+ struct bf_pci_dev *bf_dev;
+ int int_vec_offset;
+};
+
+
+/**
+ * A structure describing the private information for a BF pcie device.
+ */
+struct bf_pci_dev {
+ struct bf_dev_info info;
+ struct pci_dev *pdev;
+ struct cdev cdev;
+ enum bf_intr_mode mode;
+ u8 instance;
+ char name[16];
+ struct bf_int_vector bf_int_vec[BF_MSIX_ENTRY_CNT];
+};
+
+static int bf_major;
+static int bf_minor[BF_MAX_DEVICE_CNT] = {0};
+static struct class *bf_class = NULL;
+static char *intr_mode = NULL;
+static enum bf_intr_mode bf_intr_mode_default = BF_INTR_MODE_MSI;
+static spinlock_t bf_nonisr_lock;
+
+/* a pool of minor numbers is maintained */
+/* return the first available minor number */
+static int bf_get_next_minor_no(int *minor)
+{
+ int i;
+
+ spin_lock(&bf_nonisr_lock);
+ for(i = 0; i < BF_MAX_DEVICE_CNT; i++) {
+ if (bf_minor[i] == 0) {
+ *minor = i;
+ bf_minor[i] = 1; /* mark it as taken */
+ spin_unlock(&bf_nonisr_lock);
+ return 0;
+ }
+ }
+ *minor = -1;
+ spin_unlock(&bf_nonisr_lock);
+ return -1;
+}
+
+/* return a minor number back to the pool for recycling */
+static int bf_return_minor_no(int minor)
+{
+ int err;
+
+ spin_lock(&bf_nonisr_lock);
+ if (bf_minor[minor] == 0) { /* was already returned */
+ err = -1; /* don't change anything, but return error */
+ } else {
+ bf_minor[minor] = 0; /* mark it as available */
+ err = 0;
+ }
+ spin_unlock(&bf_nonisr_lock);
+ return err;
+}
+
+static inline struct bf_pci_dev *bf_get_pci_dev(struct bf_dev_info *info)
+{
+ return container_of(info, struct bf_pci_dev, info);
+}
+
+/*
+ * It masks the msix on/off of generating MSI-X messages.
+ */
+static void
+bf_msix_mask_irq(struct msi_desc *desc, int32_t state)
+{
+ u32 mask_bits = desc->masked;
+ unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_VECTOR_CTRL;
+
+ if (state != 0)
+ mask_bits &= ~PCI_MSIX_ENTRY_CTRL_MASKBIT;
+ else
+ mask_bits |= PCI_MSIX_ENTRY_CTRL_MASKBIT;
+
+ if (mask_bits != desc->masked) {
+ writel(mask_bits, desc->mask_base + offset);
+ readl(desc->mask_base);
+ desc->masked = mask_bits;
+ }
+}
+
+/**
+ * irqcontrol can be used to disable/enable interrupt from user space processes.
+ *
+ * @param bf_dev
+ * pointer to bf_pci_dev
+ * @param irq_state
+ * state value. 1 to enable interrupt, 0 to disable interrupt.
+ *
+ * @return
+ * - On success, 0.
+ * - On failure, a negative value.
+ */
+static int
+bf_pci_irqcontrol(struct bf_pci_dev *bfdev, s32 irq_state)
+{
+ struct pci_dev *pdev = bfdev->pdev;
+
+ pci_cfg_access_lock(pdev);
+ if (bfdev->mode == BF_INTR_MODE_LEGACY)
+ pci_intx(pdev, !!irq_state);
+
+ else if (bfdev->mode == BF_INTR_MODE_MSIX) {
+ struct msi_desc *desc;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)
+ list_for_each_entry(desc, &pdev->msi_list, list)
+ bf_msix_mask_irq(desc, irq_state);
+#else
+ for_each_pci_msi_entry(desc, pdev)
+ bf_msix_mask_irq(desc, irq_state);
+#endif
+ }
+ pci_cfg_access_unlock(pdev);
+
+ return 0;
+}
+
+/**
+ * interrupt handler which will check if the interrupt is from the right
+ * device. If so, disable it here and will be enabled later.
+ */
+static irqreturn_t bf_pci_irqhandler(int irq, struct bf_pci_dev *bfdev)
+{
+ /* Legacy mode need to mask in hardware */
+ if (bfdev->mode == BF_INTR_MODE_LEGACY &&
+ !pci_check_and_mask_intx(bfdev->pdev))
+ return IRQ_NONE;
+
+ /* NOTE : if bfdev->info.pci_error_state == 1, then do not access the
+ * device and return IRQ_NOTHANDLED.
+ */
+ /* Message signal mode, no share IRQ and automasked */
+ return IRQ_HANDLED;
+}
+
+/* Remap pci resources described by bar #pci_bar */
+static int
+bf_pci_setup_iomem(struct pci_dev *dev, struct bf_dev_info *info,
+ int n, int pci_bar, const char *name)
+{
+ unsigned long addr, len;
+ void *internal_addr;
+
+ if (sizeof(info->mem) / sizeof(info->mem[0]) <= n)
+ return -EINVAL;
+
+ addr = pci_resource_start(dev, pci_bar);
+ len = pci_resource_len(dev, pci_bar);
+ if (addr == 0 || len == 0)
+ return -1;
+ internal_addr = pci_ioremap_bar(dev, pci_bar);
+ if (internal_addr == NULL)
+ return -1;
+ info->mem[n].name = name;
+ info->mem[n].addr = addr;
+ info->mem[n].internal_addr = internal_addr;
+ info->mem[n].size = len;
+ return 0;
+}
+
+/* Unmap previously ioremap'd resources */
+static void
+bf_pci_release_iomem(struct bf_dev_info *info)
+{
+ int i;
+
+ for (i = 0; i < BF_MAX_BAR_MAPS; i++) {
+ if (info->mem[i].internal_addr)
+ iounmap(info->mem[i].internal_addr);
+ }
+}
+
+static int
+bf_setup_bars(struct pci_dev *dev, struct bf_dev_info *info)
+{
+ int i, iom, ret;
+ unsigned long flags;
+ static const char *bar_names[BF_MAX_BAR_MAPS] = {
+ "BAR0", "BAR1", "BAR2", "BAR3", "BAR4", "BAR5",
+ };
+
+ iom = 0;
+
+ for (i = 0; i < BF_MAX_BAR_MAPS; i++) {
+ if (pci_resource_len(dev, i) != 0 &&
+ pci_resource_start(dev, i) != 0) {
+ flags = pci_resource_flags(dev, i);
+ if (flags & IORESOURCE_MEM) {
+ ret = bf_pci_setup_iomem(dev, info, iom, i, bar_names[i]);
+ if (ret != 0)
+ return ret;
+ iom++;
+ }
+ }
+ }
+ return (iom != 0) ? ret : -ENOENT;
+}
+
+static irqreturn_t bf_interrupt(int irq, void *bfdev_id)
+{
+ struct bf_pci_dev *bfdev = ((struct bf_int_vector *)bfdev_id)->bf_dev;
+ int vect_off = ((struct bf_int_vector *)bfdev_id)->int_vec_offset;
+
+ irqreturn_t ret = bf_pci_irqhandler(irq, bfdev);
+
+ if (ret == IRQ_HANDLED)
+ atomic_inc(&(bfdev->info.event[vect_off]));
+
+ return ret;
+}
+
+struct bf_listener {
+ struct bf_pci_dev *bfdev;
+ s32 event_count[BF_MSIX_ENTRY_CNT];
+};
+
+static unsigned int bf_poll(struct file *filep, poll_table *wait)
+{
+ struct bf_listener *listener = (struct bf_listener *)filep->private_data;
+ struct bf_pci_dev *bfdev = listener->bfdev;
+ int i;
+
+ if (!bfdev->info.irq)
+ return -EIO;
+
+ poll_wait(filep, &bfdev->info.wait, wait);
+
+ for (i = 0; i < BF_MSIX_ENTRY_CNT; i++)
+ if (listener->event_count[i] != atomic_read(&bfdev->info.event[i]))
+ return POLLIN | POLLRDNORM;
+ return 0;
+}
+
+static int bf_find_mem_index(struct vm_area_struct *vma)
+{
+ struct bf_pci_dev *bfdev = vma->vm_private_data;
+ if (vma->vm_pgoff < BF_MAX_BAR_MAPS) {
+ if (bfdev->info.mem[vma->vm_pgoff].size == 0)
+ return -1;
+ return (int)vma->vm_pgoff;
+ }
+ return -1;
+}
+
+static const struct vm_operations_struct bf_physical_vm_ops = {
+#ifdef CONFIG_HAVE_IOREMAP_PROT
+ .access = generic_access_phys,
+#endif
+};
+
+static int bf_mmap_physical(struct vm_area_struct *vma)
+{
+ struct bf_pci_dev *bfdev = vma->vm_private_data;
+ int bar = bf_find_mem_index(vma);
+ struct bf_dev_mem *mem;
+ if (bar < 0)
+ return -EINVAL;
+
+ mem = bfdev->info.mem + bar;
+
+ if (mem->addr & ~PAGE_MASK)
+ return -ENODEV;
+ if (vma->vm_end - vma->vm_start > mem->size)
+ return -EINVAL;
+
+ vma->vm_ops = &bf_physical_vm_ops;
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+ /*
+ * We cannot use the vm_iomap_memory() helper here,
+ * because vma->vm_pgoff is the map index we looked
+ * up above in bf_find_mem_index(), rather than an
+ * actual page offset into the mmap.
+ *
+ * So we just do the physical mmap without a page
+ * offset.
+ */
+ return remap_pfn_range(vma, vma->vm_start, mem->addr >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot);
+}
+
+static int bf_mmap(struct file *filep, struct vm_area_struct *vma)
+{
+ struct bf_listener *listener = filep->private_data;
+ struct bf_pci_dev *bfdev = listener->bfdev;
+ int bar;
+ unsigned long requested_pages, actual_pages;
+
+ if (vma->vm_end < vma->vm_start)
+ return -EINVAL;
+
+ vma->vm_private_data = bfdev;
+
+ bar = bf_find_mem_index(vma);
+ if (bar < 0)
+ return -EINVAL;
+
+ requested_pages = vma_pages(vma);
+ actual_pages = ((bfdev->info.mem[bar].addr & ~PAGE_MASK)
+ + bfdev->info.mem[bar].size + PAGE_SIZE -1) >> PAGE_SHIFT;
+ if (requested_pages > actual_pages)
+ return -EINVAL;
+
+ return bf_mmap_physical(vma);
+}
+
+static int bf_fasync(int fd, struct file *filep, int mode)
+{
+ struct bf_pci_dev *bfdev = ((struct bf_listener *)filep->private_data)->bfdev;
+
+ if (mode == 0 && &bfdev->info.async_queue == NULL) {
+ return 0; /* nothing to do */
+ }
+ return (fasync_helper(fd, filep, mode, &bfdev->info.async_queue));
+}
+
+static int bf_open(struct inode *inode, struct file *filep)
+{
+ struct bf_pci_dev *bfdev;
+ struct bf_listener *listener;
+ int i;
+
+ bfdev = container_of(inode->i_cdev, struct bf_pci_dev, cdev);
+ listener = kmalloc(sizeof(*listener), GFP_KERNEL);
+ if (listener) {
+ listener->bfdev = bfdev;
+ for (i = 0; i < BF_MSIX_ENTRY_CNT; i++)
+ listener->event_count[i] = atomic_read(&bfdev->info.event[i]);
+ filep->private_data = listener;
+ return 0;
+ } else {
+ return(-ENOMEM);
+ }
+}
+
+static int bf_release(struct inode *inode, struct file *filep)
+{
+ struct bf_listener *listener = filep->private_data;
+
+ bf_fasync(-1, filep, 0); /* empty any process id in the notification list */
+ kfree(listener);
+ return 0;
+}
+
+/* user space support: make read() system call after poll() of select() */
+static ssize_t bf_read(struct file *filep, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct bf_listener *listener = filep->private_data;
+ struct bf_pci_dev *bfdev = listener->bfdev;
+ int retval, event_count[BF_MSIX_ENTRY_CNT];
+ int i, mismatch_found = 0; /* OR of per vector mismatch */
+ unsigned char cnt_match[BF_MSIX_ENTRY_CNT]; /* per vector mismatch */
+
+ /* irq must be setup for read() to work */
+ if (!bfdev->info.irq)
+ return -EIO;
+
+ /* ensure that there is enough space on user buffer for the given interrupt
+ * mode */
+ if (bfdev->mode == BF_INTR_MODE_MSIX) {
+ if (count < sizeof(s32)*BF_MSIX_ENTRY_CNT)
+ return -EINVAL;
+ count = sizeof(s32)*BF_MSIX_ENTRY_CNT;
+ } else if (bfdev->mode == BF_INTR_MODE_MSI) {
+ if (count < sizeof(s32)*BF_MSI_ENTRY_CNT)
+ return -EINVAL;
+ count = sizeof(s32)*BF_MSI_ENTRY_CNT;
+ } else {
+ if (count < sizeof(s32))
+ return -EINVAL;
+ count = sizeof(s32);
+ }
+ count = sizeof(s32)*BF_MSIX_ENTRY_CNT;
+
+ do {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ for (i = 0; i < (count/sizeof(s32)); i++) {
+ event_count[i] = atomic_read(&(bfdev->info.event[i]));
+ if (event_count[i] != listener->event_count[i]) {
+ mismatch_found |= 1;
+ cnt_match[i] = 1;
+ } else {
+ event_count[i] = 0;
+ cnt_match[i] = 0;
+ }
+ }
+ if (mismatch_found) {
+ __set_current_state(TASK_RUNNING);
+ if (copy_to_user(buf, &event_count, count))
+ retval = -EFAULT;
+ else { /* adjust the listener->event_count; */
+ for (i = 0 ; i < BF_MSIX_ENTRY_CNT; i++) {
+ if (cnt_match[i]) {
+ listener->event_count[i] = event_count[i];
+ }
+ }
+ retval = count;
+ }
+ break;
+ }
+
+ if (filep->f_flags & O_NONBLOCK) {
+ retval = -EAGAIN;
+ break;
+ }
+
+ if (signal_pending(current)) {
+ retval = -ERESTARTSYS;
+ break;
+ }
+ schedule();
+ } while (1);
+
+ __set_current_state(TASK_RUNNING);
+
+ return retval;
+}
+
+/* user space is supposed to call this after it is done with interrupt
+ * processing
+ */
+static ssize_t bf_write(struct file *filep, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct bf_listener *listener = filep->private_data;
+ struct bf_pci_dev *bfdev = listener->bfdev;
+ ssize_t ret;
+ s32 int_en;
+
+ if (!bfdev || !bfdev->info.irq)
+ return -EIO;
+
+ if (count != sizeof(s32))
+ return -EINVAL;
+
+ if (copy_from_user(&int_en, buf, count))
+ return -EFAULT;
+
+ /* clear pci_error_state */
+ bfdev->info.pci_error_state = 0;
+
+ ret = bf_pci_irqcontrol(bfdev, int_en);
+
+ return ret ? ret : sizeof(s32);
+}
+
+static const struct file_operations bf_fops = {
+ .owner = THIS_MODULE,
+ .open = bf_open,
+ .release = bf_release,
+ .read = bf_read,
+ .write = bf_write,
+ .mmap = bf_mmap,
+ .poll = bf_poll,
+ .fasync = bf_fasync,
+};
+
+static int bf_major_init(struct bf_pci_dev *bfdev)
+{
+ static const char name[] = "bf";
+ dev_t bf_dev = 0;
+ int result;
+
+ result = alloc_chrdev_region(&bf_dev, 0, BF_MAX_DEVICE_CNT, name);
+ if (result)
+ return result;
+
+ result = -ENOMEM;
+/* following code useful if we chose to allocate cdev here
+ *
+ *struct cdev *cdev = NULL;
+ * cdev = cdev_alloc();
+ * if (!cdev)
+ * goto fail_unregister;
+ * cdev->ops = &bf_fops;
+ * cdev->owner = THIS_MODULE;
+ * kobject_set_name(&cdev->kobj, "%s", name);
+ * result = cdev_add(cdev, bf_dev, BF_MAX_DEVICE_CNT);
+ */
+ cdev_init(&bfdev->cdev, &bf_fops);
+ bfdev->cdev.owner = THIS_MODULE;
+ bfdev->cdev.ops = &bf_fops;
+
+ result = cdev_add(&bfdev->cdev, bf_dev, BF_MAX_DEVICE_CNT);
+ if (result)
+ goto fail_dev_add;
+
+ bf_major = MAJOR(bf_dev);
+ return 0;
+
+fail_dev_add:
+ unregister_chrdev_region(bf_dev, BF_MAX_DEVICE_CNT);
+ return result;
+}
+
+static void bf_major_cleanup(struct bf_pci_dev *bfdev)
+{
+ unregister_chrdev_region(MKDEV(bf_major, 0), BF_MAX_DEVICE_CNT);
+ cdev_del(&bfdev->cdev);
+}
+
+static int bf_init_cdev(struct bf_pci_dev *bfdev)
+{
+ int ret;
+ ret = bf_major_init(bfdev);
+ if (ret)
+ return ret;
+
+ bf_class = class_create(THIS_MODULE, BF_CLASS_NAME);
+ if (!bf_class) {
+ printk(KERN_ERR "create_class failed for bf_dev\n");
+ ret = -ENODEV;
+ goto err_class_register;
+ }
+ return 0;
+
+err_class_register:
+ bf_major_cleanup(bfdev);
+ return ret;
+}
+
+static void bf_remove_cdev(struct bf_pci_dev *bfdev)
+{
+ class_destroy(bf_class);
+ bf_major_cleanup(bfdev);
+}
+
+
+/**
+ * bf_register_device - register a new userspace mem device
+ * @parent: parent device
+ * @bfdev: bf pci device
+ *
+ * returns zero on success or a negative error code.
+ */
+int bf_register_device(struct device *parent, struct bf_pci_dev *bfdev)
+{
+ struct bf_dev_info *info = &bfdev->info;
+ int i, j, ret = 0;
+ int minor;
+
+ if (!parent || !info || !info->version)
+ return -EINVAL;
+
+ init_waitqueue_head(&info->wait);
+
+ for (i = 0; i < BF_MSIX_ENTRY_CNT; i++) {
+ atomic_set(&info->event[i], 0);
+ }
+
+ ret = bf_init_cdev(bfdev);
+ if (ret) {
+ printk(KERN_ERR "BF: device cdev creation failed\n");
+ return ret;
+ }
+
+ if (bf_get_next_minor_no(&minor)) {
+ return -EINVAL;
+ }
+
+ info->dev = device_create(bf_class, parent,
+ MKDEV(bf_major, minor), bfdev,
+ "bf%d", minor);
+ if (!info->dev) {
+ printk(KERN_ERR "BF: device creation failed\n");
+ return -ENODEV;
+ }
+
+ info->minor = minor;
+
+ /* bind ISRs and request interrupts */
+ if (info->irq && (bfdev->mode != BF_INTR_MODE_NONE)) {
+ /*
+ * Note that we deliberately don't use devm_request_irq
+ * here. The parent module can unregister the UIO device
+ * and call pci_disable_msi, which requires that this
+ * irq has been freed. However, the device may have open
+ * FDs at the time of unregister and therefore may not be
+ * freed until they are released.
+ */
+ if (bfdev->mode == BF_INTR_MODE_LEGACY) {
+ ret = request_irq(info->irq, bf_interrupt,
+ info->irq_flags, bfdev->name,
+ (void *)&(bfdev->bf_int_vec[0]));
+ if (ret) {
+ printk(KERN_ERR "bf failed to request legacy irq %ld error %d\n",
+ info->irq, ret);
+ return ret;
+ }
+ printk(KERN_NOTICE "BF allocating legacy int vector %ld\n", info->irq);
+ } else if (bfdev->mode == BF_INTR_MODE_MSIX) {
+ for (i = 0; i < info->num_irq; i++) {
+ ret = request_irq(info->msix_entries[i].vector, bf_interrupt,
+ info->irq_flags, bfdev->name,
+ (void *)&(bfdev->bf_int_vec[i]));
+ if (ret) {
+ /* undo all other previous bindings */
+ printk(KERN_ERR "bf failed to request MSIX ret %d itr %d\n", ret, i);
+ for (j = i - 1; j >= 0; j--) {
+ free_irq(info->msix_entries[j].vector,
+ (void *)&(bfdev->bf_int_vec[j]));
+ }
+ return ret;
+ }
+ }
+ printk(KERN_NOTICE "BF allocating %d MSIx vectors from %ld\n",
+ info->num_irq, info->irq);
+ } else if (bfdev->mode == BF_INTR_MODE_MSI) {
+ for (i = 0; i < info->num_irq; i++) {
+ ret = request_irq(info->irq + i, bf_interrupt,
+ info->irq_flags, bfdev->name,
+ (void *)&(bfdev->bf_int_vec[i]));
+ if (ret) {
+ /* undo all other previous bindings */
+ printk(KERN_ERR "bf failed to request MSI ret %d itr %d\n", ret, i);
+ for (j = i - 1; j >= 0; j--) {
+ free_irq(info->irq + j, (void *)&(bfdev->bf_int_vec[j]));
+ }
+ return ret;
+ }
+ }
+ printk(KERN_NOTICE "BF allocating %d MSI vectors from %ld\n",
+ info->num_irq, info->irq);
+ }
+ }
+ return 0;
+}
+
+/**
+ * bf_unregister_device - register a new userspace mem device
+ * @bfdev: bf pci device
+ *
+ * returns none
+ */
+void bf_unregister_device(struct bf_pci_dev *bfdev)
+{
+ struct bf_dev_info *info = &bfdev->info;
+ int i;
+
+ if (info->irq) {
+ if (bfdev->mode == BF_INTR_MODE_LEGACY) {
+ free_irq(info->irq, (void *)&(bfdev->bf_int_vec[0]));
+ } else if (bfdev->mode == BF_INTR_MODE_MSIX) {
+ for (i = 0; i < info->num_irq; i++) {
+ free_irq(info->msix_entries[i].vector, (void *)&(bfdev->bf_int_vec[i]));
+ }
+ } else if (bfdev->mode == BF_INTR_MODE_MSI) {
+ for (i = 0; i < info->num_irq; i++) {
+ free_irq(info->irq + i, (void *)&(bfdev->bf_int_vec[i]));
+ }
+ }
+ }
+ device_destroy(bf_class, MKDEV(bf_major, info->minor));
+ bf_remove_cdev(bfdev);
+ bf_return_minor_no(info->minor);
+ return;
+}
+
+static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
+{
+ return &pdev->dev;
+}
+
+static int
+bf_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct bf_pci_dev *bfdev;
+ int err, pci_use_highmem;
+ int i, num_irq;
+
+ bfdev = kzalloc(sizeof(struct bf_pci_dev), GFP_KERNEL);
+ if (!bfdev)
+ return -ENOMEM;
+
+ /* init the cookies to be passed to ISRs */
+ for (i = 0; i < BF_MSIX_ENTRY_CNT; i++) {
+ bfdev->bf_int_vec[i].int_vec_offset = i;
+ bfdev->bf_int_vec[i].bf_dev = bfdev;
+ }
+
+ bfdev->info.async_queue = NULL;
+
+ /* initialize intr_mode to none */
+ bfdev->mode = BF_INTR_MODE_NONE;
+
+ /* clear pci_error_state */
+ bfdev->info.pci_error_state = 0;
+
+ /*
+ * enable device
+ */
+ err = pci_enable_device(pdev);
+ if (err != 0) {
+ dev_err(&pdev->dev, "Cannot enable PCI device\n");
+ goto fail_free;
+ }
+
+ /*
+ * reserve device's PCI memory regions for use by this
+ * module
+ */
+ err = pci_request_regions(pdev, "bf_umem");
+ if (err != 0) {
+ dev_err(&pdev->dev, "Cannot request regions\n");
+ goto fail_pci_disable;
+ }
+ /* remap IO memory */
+ err = bf_setup_bars(pdev, &bfdev->info);
+ if (err != 0)
+ goto fail_release_iomem;
+
+ if (!dma_set_mask(pci_dev_to_dev(pdev), DMA_BIT_MASK(64)) &&
+ !dma_set_coherent_mask(pci_dev_to_dev(pdev), DMA_BIT_MASK(64))) {
+ pci_use_highmem = 1;
+ } else {
+ err = dma_set_mask(pci_dev_to_dev(pdev), DMA_BIT_MASK(32));
+ if (err) {
+ err = dma_set_coherent_mask(pci_dev_to_dev(pdev),
+ DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(pci_dev_to_dev(pdev), "No usable DMA "
+ "configuration, aborting\n");
+ goto fail_release_iomem;
+ }
+ }
+ pci_use_highmem = 0;
+ }
+
+ /* enable pci error reporting */
+ /* for the current kernel version, kernel config must have set the followings:
+ * CONFIG_PCIEPORTBUS=y and CONFIG_PCIEAER = y
+ * we have pci_error_handlers defined that gets invoked by kernel AER module
+ * upon detecting the pcie error on this device's addresses.
+ * However, there seems no way that AER would pass the offending addresses
+ * to the callback functions. AER logs the error messages on the console.
+ * This driver's calback function send the SIGIO signal to the user space
+ * to indicate the error condition.
+ */
+ pci_enable_pcie_error_reporting(pdev);
+
+ /* enable bus mastering on the device */
+ pci_set_master(pdev);
+
+ /* fill in bfdev info */
+ bfdev->info.version = "0.2";
+ bfdev->info.owner = THIS_MODULE;
+ bfdev->pdev = pdev;
+
+ switch (bf_intr_mode_default) {
+#ifdef CONFIG_PCI_MSI
+ case BF_INTR_MODE_MSIX:
+ /* Only 1 msi-x vector needed */
+ bfdev->info.msix_entries = kcalloc(BF_MSIX_ENTRY_CNT,
+ sizeof(struct msix_entry), GFP_KERNEL);
+ if (!bfdev->info.msix_entries) {
+ err = -ENOMEM;
+ goto fail_clear_pci_master;
+ }
+ for (i = 0; i < BF_MSIX_ENTRY_CNT; i++) {
+ bfdev->info.msix_entries[i].entry= i;
+ }
+ num_irq = pci_enable_msix_range(pdev, bfdev->info.msix_entries,
+ BF_MSIX_ENTRY_CNT, BF_MSIX_ENTRY_CNT);
+ if (num_irq == BF_MSIX_ENTRY_CNT) {
+ dev_dbg(&pdev->dev, "using MSI-X");
+ bfdev->info.num_irq = num_irq;
+ bfdev->info.irq = bfdev->info.msix_entries[0].vector;
+ bfdev->mode = BF_INTR_MODE_MSIX;
+ printk(KERN_DEBUG "bf using %d MSIX irq from %ld\n", num_irq,
+ bfdev->info.irq);
+ break;
+ } else {
+ if (num_irq)
+ pci_disable_msix(pdev);
+ kfree(bfdev->info.msix_entries);
+ bfdev->info.msix_entries = NULL;
+ printk(KERN_ERR "bf error allocating MSIX vectors. Trying MSI...\n");
+ /* and, fall back to MSI */
+ }
+ /* ** intentional no-break */
+ case BF_INTR_MODE_MSI:
+ num_irq = pci_enable_msi_range(pdev, BF_MSI_ENTRY_CNT, BF_MSI_ENTRY_CNT);
+ if (num_irq > 0) {
+ dev_dbg(&pdev->dev, "using MSI");
+ bfdev->info.num_irq = num_irq;
+ bfdev->info.irq = pdev->irq;
+ bfdev->mode = BF_INTR_MODE_MSI;
+ printk(KERN_DEBUG "bf using %d MSI irq from %ld\n", bfdev->info.num_irq,
+ bfdev->info.irq);
+ break;
+ }
+#endif /* CONFIG_PCI_MSI */
+ /* fall back to Legacy Interrupt, intentional no-break */
+
+ case BF_INTR_MODE_LEGACY:
+ if (pci_intx_mask_supported(pdev)) {
+ dev_dbg(&pdev->dev, "using INTX");
+ bfdev->info.irq_flags = IRQF_SHARED;
+ bfdev->info.irq = pdev->irq;
+ bfdev->mode = BF_INTR_MODE_LEGACY;
+ printk(KERN_DEBUG "bf using LEGACY irq %ld\n", bfdev->info.irq);
+ break;
+ }
+ dev_notice(&pdev->dev, "PCI INTx mask not supported\n");
+ /* fall back to no Interrupt, intentional no-break */
+ case BF_INTR_MODE_NONE:
+ bfdev->info.irq = 0;
+ bfdev->info.num_irq = 0;
+ bfdev->mode = BF_INTR_MODE_NONE;
+ break;
+
+ default:
+ dev_err(&pdev->dev, "invalid IRQ mode %u", bf_intr_mode_default);
+ err = -EINVAL;
+ goto fail_clear_pci_master;
+ }
+
+ /* register bf driver */
+ err = bf_register_device(&pdev->dev, bfdev);
+ if (err != 0)
+ goto fail_release_irq;
+ sprintf(bfdev->name, "bf_%d", bfdev->info.minor);
+ pci_set_drvdata(pdev, bfdev);
+
+ dev_info(&pdev->dev, "bf device %d registered with irq %ld\n",
+ bfdev->instance, bfdev->info.irq);
+ printk(KERN_ALERT "bf probe ok\n");
+ return 0;
+
+fail_release_irq:
+ if (bfdev->mode == BF_INTR_MODE_MSIX) {
+ pci_disable_msix(bfdev->pdev);
+ kfree(bfdev->info.msix_entries);
+ bfdev->info.msix_entries = NULL;
+ }
+ else if (bfdev->mode == BF_INTR_MODE_MSI)
+ pci_disable_msi(bfdev->pdev);
+fail_clear_pci_master:
+ pci_clear_master(pdev);
+fail_release_iomem:
+ bf_pci_release_iomem(&bfdev->info);
+ pci_release_regions(pdev);
+fail_pci_disable:
+ pci_disable_device(pdev);
+fail_free:
+ kfree(bfdev);
+
+ printk(KERN_ERR "bf probe not ok\n");
+ return err;
+}
+
+static void
+bf_pci_remove(struct pci_dev *pdev)
+{
+ struct bf_pci_dev *bfdev = pci_get_drvdata(pdev);
+
+ bf_unregister_device(bfdev);
+ if (bfdev->mode == BF_INTR_MODE_MSIX) {
+ pci_disable_msix(pdev);
+ kfree(bfdev->info.msix_entries);
+ bfdev->info.msix_entries = NULL;
+ }
+ else if (bfdev->mode == BF_INTR_MODE_MSI)
+ pci_disable_msi(pdev);
+ pci_clear_master(pdev);
+ bf_pci_release_iomem(&bfdev->info);
+ pci_release_regions(pdev);
+ pci_disable_pcie_error_reporting(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ kfree(bfdev);
+}
+
+/**
+ * bf_pci_error_detected - called when PCI error is detected
+ * @pdev: Pointer to PCI device
+ * @state: The current pci connection state
+ *
+ * called when root complex detects pci error associated with the device
+ */
+static pci_ers_result_t bf_pci_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct bf_pci_dev *bfdev = pci_get_drvdata(pdev);
+
+ if (!bfdev) {
+ return PCI_ERS_RESULT_NONE;
+ }
+ printk(KERN_ERR "pci_err_detected state %d asyncQ %p\n", state, &bfdev->info.async_queue);
+ if (state == pci_channel_io_perm_failure || state == pci_channel_io_frozen) {
+ bfdev->info.pci_error_state = 1;
+ /* send a signal to the user space program of the error */
+ if (bfdev->info.async_queue) {
+ kill_fasync(&bfdev->info.async_queue, SIGIO, POLL_ERR);
+ }
+ return PCI_ERS_RESULT_DISCONNECT;
+ } else {
+ return PCI_ERS_RESULT_NONE;
+ }
+}
+
+/**
+ * bf_pci_slot_reset - called after the pci bus has been reset.
+ * @pdev: Pointer to PCI device
+ *
+ * Restart the card from scratch, as if from a cold-boot.
+ */
+static pci_ers_result_t bf_pci_slot_reset(struct pci_dev *pdev)
+{
+ /* nothing to do for now as we do not expect to get backto normal after
+ * a pcie link reset
+ * TBD: fill in this function if tofino can recover after an error
+ */
+ return PCI_ERS_RESULT_DISCONNECT;
+}
+
+/**
+ * bf_pci_resume - called when kernel thinks the device is up on PCIe.
+ * @pdev: Pointer to PCI device
+ *
+ * This callback is called when the error recovery driver tells us that
+ * its OK to resume normal operation.
+ */
+static void bf_pci_resume(struct pci_dev *pdev)
+{
+ /* this function should never be called for Tofinoi */
+ struct bf_pci_dev *bfdev = pci_get_drvdata(pdev);
+
+ printk(KERN_ERR "BF io_resume invoked after pci error\n");
+ if (bfdev) {
+ bfdev->info.pci_error_state = 0;
+ }
+}
+
+static int
+bf_config_intr_mode(char *intr_str)
+{
+ if (!intr_str) {
+ pr_info("Use MSIX interrupt by default\n");
+ return 0;
+ }
+
+ if (!strcmp(intr_str, BF_INTR_MODE_MSIX_NAME)) {
+ bf_intr_mode_default = BF_INTR_MODE_MSIX;
+ pr_info("Use MSIX interrupt\n");
+ } else if (!strcmp(intr_str, BF_INTR_MODE_MSI_NAME)) {
+ bf_intr_mode_default = BF_INTR_MODE_MSI;
+ pr_info("Use MSI interrupt\n");
+ } else if (!strcmp(intr_str, BF_INTR_MODE_LEGACY_NAME)) {
+ bf_intr_mode_default = BF_INTR_MODE_LEGACY;
+ pr_info("Use legacy interrupt\n");
+ } else {
+ pr_info("Error: bad parameter - %s\n", intr_str);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct pci_device_id bf_pci_tbl[] = {
+ {PCI_VDEVICE(BF, TOFINO_DEV_ID), 0},
+ /* required last entry */
+ { .device = 0 }
+};
+
+/* PCI bus error handlers */
+static struct pci_error_handlers bf_pci_err_handler = {
+ .error_detected = bf_pci_error_detected,
+ .slot_reset = bf_pci_slot_reset,
+ .resume = bf_pci_resume,
+};
+
+static struct pci_driver bf_pci_driver = {
+ .name = "bf",
+ .id_table = bf_pci_tbl,
+ .probe = bf_pci_probe,
+ .remove = bf_pci_remove,
+ .err_handler = &bf_pci_err_handler
+};
+
+static int __init
+bfdrv_init(void)
+{
+ int ret;
+
+ ret = bf_config_intr_mode(intr_mode);
+ if (ret < 0)
+ return ret;
+
+ spin_lock_init(&bf_nonisr_lock);
+ return pci_register_driver(&bf_pci_driver);
+}
+
+static void __exit
+bfdrv_exit(void)
+{
+ pci_unregister_driver(&bf_pci_driver);
+}
+
+module_init(bfdrv_init);
+module_exit(bfdrv_exit);
+
+module_param(intr_mode, charp, S_IRUGO);
+MODULE_PARM_DESC(intr_mode,
+"bf interrupt mode (default=msi):\n"
+" " BF_INTR_MODE_MSIX_NAME " Use MSIX interrupt\n"
+" " BF_INTR_MODE_MSI_NAME " Use MSI interrupt\n"
+" " BF_INTR_MODE_LEGACY_NAME " Use Legacy interrupt\n"
+"\n");
+
+MODULE_DEVICE_TABLE(pci, bf_pci_tbl);
+MODULE_DESCRIPTION("Barefoot Tofino PCI device");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Barefoot Networks");
diff --git a/platform/barefoot/sonic-platform-modules-bfn/modules/bf_tun.c b/platform/barefoot/sonic-platform-modules-bfn/modules/bf_tun.c
new file mode 100644
index 0000000000..a1ba7047ba
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/modules/bf_tun.c
@@ -0,0 +1,2396 @@
+/*
+ * TUN - Universal TUN/TAP device driver.
+ * Copyright (C) 1999-2002 Maxim Krasnyansky
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * $Id: tun.c,v 1.15 2002/03/01 02:44:24 maxk Exp $
+ */
+
+/*
+ * Changes:
+ *
+ * Mike Kershaw 2005/08/14
+ * Add TUNSETLINK ioctl to set the link encapsulation
+ *
+ * Mark Smith
+ * Use eth_random_addr() for tap MAC address.
+ *
+ * Harald Roelle 2004/04/20
+ * Fixes in packet dropping, queue length setting and queue wakeup.
+ * Increased default tx queue length.
+ * Added ethtool API.
+ * Minor cleanups
+ *
+ * Daniel Podlejski
+ * Modifications for 2.3.99-pre5 kernel.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define DRV_NAME "bf_tun"
+#define DRV_VERSION "1.6"
+#define DRV_DESCRIPTION "Universal TUN/TAP device driver"
+#define DRV_COPYRIGHT "(C) 1999-2004 Max Krasnyansky "
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+
+/* Uncomment to enable debugging */
+/* #define TUN_DEBUG 1 */
+
+#define TUN_MINOR1 201
+
+#ifdef TUN_DEBUG
+static int debug;
+
+#define tun_debug(level, tun, fmt, args...) \
+do { \
+ if (tun->debug) \
+ netdev_printk(level, tun->dev, fmt, ##args); \
+} while (0)
+#define DBG1(level, fmt, args...) \
+do { \
+ if (debug == 2) \
+ printk(level fmt, ##args); \
+} while (0)
+#else
+#define tun_debug(level, tun, fmt, args...) \
+do { \
+ if (0) \
+ netdev_printk(level, tun->dev, fmt, ##args); \
+} while (0)
+#define DBG1(level, fmt, args...) \
+do { \
+ if (0) \
+ printk(level fmt, ##args); \
+} while (0)
+#endif
+
+#define GOODCOPY_LEN 128
+
+#define FLT_EXACT_COUNT 8
+struct tap_filter {
+ unsigned int count; /* Number of addrs. Zero means disabled */
+ u32 mask[2]; /* Mask of the hashed addrs */
+ unsigned char addr[FLT_EXACT_COUNT][ETH_ALEN];
+};
+
+/* DEFAULT_MAX_NUM_RSS_QUEUES were chosen to let the rx/tx queues allocated for
+ * the netdevice to be fit in one page. So we can make sure the success of
+ * memory allocation. TODO: increase the limit. */
+#define MAX_TAP_QUEUES DEFAULT_MAX_NUM_RSS_QUEUES
+#define MAX_TAP_FLOWS 4096
+
+#define TUN_FLOW_EXPIRE (3 * HZ)
+
+/* A tun_file connects an open character device to a tuntap netdevice. It
+ * also contains all socket related structures (except sock_fprog and tap_filter)
+ * to serve as one transmit queue for tuntap device. The sock_fprog and
+ * tap_filter were kept in tun_struct since they were used for filtering for the
+ * netdevice not for a specific queue (at least I didn't see the requirement for
+ * this).
+ *
+ * RCU usage:
+ * The tun_file and tun_struct are loosely coupled, the pointer from one to the
+ * other can only be read while rcu_read_lock or rtnl_lock is held.
+ */
+struct tun_file {
+ struct sock sk;
+ struct socket socket;
+ struct socket_wq wq;
+ struct tun_struct __rcu *tun;
+ struct net *net;
+ struct fasync_struct *fasync;
+ /* only used for fasnyc */
+ unsigned int flags;
+ union {
+ u16 queue_index;
+ unsigned int ifindex;
+ };
+ struct list_head next;
+ struct tun_struct *detached;
+};
+
+struct tun_flow_entry {
+ struct hlist_node hash_link;
+ struct rcu_head rcu;
+ struct tun_struct *tun;
+
+ u32 rxhash;
+ u32 rps_rxhash;
+ int queue_index;
+ unsigned long updated;
+};
+
+#define TUN_NUM_FLOW_ENTRIES 1024
+
+/* Since the socket were moved to tun_file, to preserve the behavior of persist
+ * device, socket filter, sndbuf and vnet header size were restore when the
+ * file were attached to a persist device.
+ */
+struct tun_struct {
+ struct tun_file __rcu *tfiles[MAX_TAP_QUEUES];
+ unsigned int numqueues;
+ unsigned int flags;
+ kuid_t owner;
+ kgid_t group;
+
+ struct net_device *dev;
+ netdev_features_t set_features;
+#define TUN_USER_FEATURES (NETIF_F_HW_CSUM|NETIF_F_TSO_ECN|NETIF_F_TSO| \
+ NETIF_F_TSO6|NETIF_F_UFO)
+
+ int vnet_hdr_sz;
+ int sndbuf;
+ struct tap_filter txflt;
+ struct sock_fprog fprog;
+ /* protected by rtnl lock */
+ bool filter_attached;
+#ifdef TUN_DEBUG
+ int debug;
+#endif
+ spinlock_t lock;
+ struct hlist_head flows[TUN_NUM_FLOW_ENTRIES];
+ struct timer_list flow_gc_timer;
+ unsigned long ageing_time;
+ unsigned int numdisabled;
+ struct list_head disabled;
+ void *security;
+ u32 flow_count;
+};
+
+static inline u32 tun_hashfn(u32 rxhash)
+{
+ return rxhash & 0x3ff;
+}
+
+static struct tun_flow_entry *tun_flow_find(struct hlist_head *head, u32 rxhash)
+{
+ struct tun_flow_entry *e;
+
+ hlist_for_each_entry_rcu(e, head, hash_link) {
+ if (e->rxhash == rxhash)
+ return e;
+ }
+ return NULL;
+}
+
+static struct tun_flow_entry *tun_flow_create(struct tun_struct *tun,
+ struct hlist_head *head,
+ u32 rxhash, u16 queue_index)
+{
+ struct tun_flow_entry *e = kmalloc(sizeof(*e), GFP_ATOMIC);
+
+ if (e) {
+ tun_debug(KERN_INFO, tun, "create flow: hash %u index %u\n",
+ rxhash, queue_index);
+ e->updated = jiffies;
+ e->rxhash = rxhash;
+ e->rps_rxhash = 0;
+ e->queue_index = queue_index;
+ e->tun = tun;
+ hlist_add_head_rcu(&e->hash_link, head);
+ ++tun->flow_count;
+ }
+ return e;
+}
+
+static void tun_flow_delete(struct tun_struct *tun, struct tun_flow_entry *e)
+{
+ tun_debug(KERN_INFO, tun, "delete flow: hash %u index %u\n",
+ e->rxhash, e->queue_index);
+ sock_rps_reset_flow_hash(e->rps_rxhash);
+ hlist_del_rcu(&e->hash_link);
+ kfree_rcu(e, rcu);
+ --tun->flow_count;
+}
+
+static void tun_flow_flush(struct tun_struct *tun)
+{
+ int i;
+
+ spin_lock_bh(&tun->lock);
+ for (i = 0; i < TUN_NUM_FLOW_ENTRIES; i++) {
+ struct tun_flow_entry *e;
+ struct hlist_node *n;
+
+ hlist_for_each_entry_safe(e, n, &tun->flows[i], hash_link)
+ tun_flow_delete(tun, e);
+ }
+ spin_unlock_bh(&tun->lock);
+}
+
+static void tun_flow_delete_by_queue(struct tun_struct *tun, u16 queue_index)
+{
+ int i;
+
+ spin_lock_bh(&tun->lock);
+ for (i = 0; i < TUN_NUM_FLOW_ENTRIES; i++) {
+ struct tun_flow_entry *e;
+ struct hlist_node *n;
+
+ hlist_for_each_entry_safe(e, n, &tun->flows[i], hash_link) {
+ if (e->queue_index == queue_index)
+ tun_flow_delete(tun, e);
+ }
+ }
+ spin_unlock_bh(&tun->lock);
+}
+
+static void tun_flow_cleanup(unsigned long data)
+{
+ struct tun_struct *tun = (struct tun_struct *)data;
+ unsigned long delay = tun->ageing_time;
+ unsigned long next_timer = jiffies + delay;
+ unsigned long count = 0;
+ int i;
+
+ tun_debug(KERN_INFO, tun, "tun_flow_cleanup\n");
+
+ spin_lock_bh(&tun->lock);
+ for (i = 0; i < TUN_NUM_FLOW_ENTRIES; i++) {
+ struct tun_flow_entry *e;
+ struct hlist_node *n;
+
+ hlist_for_each_entry_safe(e, n, &tun->flows[i], hash_link) {
+ unsigned long this_timer;
+ count++;
+ this_timer = e->updated + delay;
+ if (time_before_eq(this_timer, jiffies))
+ tun_flow_delete(tun, e);
+ else if (time_before(this_timer, next_timer))
+ next_timer = this_timer;
+ }
+ }
+
+ if (count)
+ mod_timer(&tun->flow_gc_timer, round_jiffies_up(next_timer));
+ spin_unlock_bh(&tun->lock);
+}
+
+static void tun_flow_update(struct tun_struct *tun, u32 rxhash,
+ struct tun_file *tfile)
+{
+ struct hlist_head *head;
+ struct tun_flow_entry *e;
+ unsigned long delay = tun->ageing_time;
+ u16 queue_index = tfile->queue_index;
+
+ if (!rxhash)
+ return;
+ else
+ head = &tun->flows[tun_hashfn(rxhash)];
+
+ rcu_read_lock();
+
+ /* We may get a very small possibility of OOO during switching, not
+ * worth to optimize.*/
+ if (tun->numqueues == 1 || tfile->detached)
+ goto unlock;
+
+ e = tun_flow_find(head, rxhash);
+ if (likely(e)) {
+ /* TODO: keep queueing to old queue until it's empty? */
+ e->queue_index = queue_index;
+ e->updated = jiffies;
+ sock_rps_record_flow_hash(e->rps_rxhash);
+ } else {
+ spin_lock_bh(&tun->lock);
+ if (!tun_flow_find(head, rxhash) &&
+ tun->flow_count < MAX_TAP_FLOWS)
+ tun_flow_create(tun, head, rxhash, queue_index);
+
+ if (!timer_pending(&tun->flow_gc_timer))
+ mod_timer(&tun->flow_gc_timer,
+ round_jiffies_up(jiffies + delay));
+ spin_unlock_bh(&tun->lock);
+ }
+
+unlock:
+ rcu_read_unlock();
+}
+
+/**
+ * Save the hash received in the stack receive path and update the
+ * flow_hash table accordingly.
+ */
+static inline void tun_flow_save_rps_rxhash(struct tun_flow_entry *e, u32 hash)
+{
+ if (unlikely(e->rps_rxhash != hash)) {
+ sock_rps_reset_flow_hash(e->rps_rxhash);
+ e->rps_rxhash = hash;
+ }
+}
+
+/* We try to identify a flow through its rxhash first. The reason that
+ * we do not check rxq no. is because some cards(e.g 82599), chooses
+ * the rxq based on the txq where the last packet of the flow comes. As
+ * the userspace application move between processors, we may get a
+ * different rxq no. here. If we could not get rxhash, then we would
+ * hope the rxq no. may help here.
+ */
+static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb,
+ void *accel_priv, select_queue_fallback_t fallback)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+ struct tun_flow_entry *e;
+ u32 txq = 0;
+ u32 numqueues = 0;
+
+ rcu_read_lock();
+ numqueues = ACCESS_ONCE(tun->numqueues);
+
+ txq = skb_get_hash(skb);
+ if (txq) {
+ e = tun_flow_find(&tun->flows[tun_hashfn(txq)], txq);
+ if (e) {
+ tun_flow_save_rps_rxhash(e, txq);
+ txq = e->queue_index;
+ } else
+ /* use multiply and shift instead of expensive divide */
+ txq = ((u64)txq * numqueues) >> 32;
+ } else if (likely(skb_rx_queue_recorded(skb))) {
+ txq = skb_get_rx_queue(skb);
+ while (unlikely(txq >= numqueues))
+ txq -= numqueues;
+ }
+
+ rcu_read_unlock();
+ return txq;
+}
+
+static inline bool tun_not_capable(struct tun_struct *tun)
+{
+ const struct cred *cred = current_cred();
+ struct net *net = dev_net(tun->dev);
+
+ return ((uid_valid(tun->owner) && !uid_eq(cred->euid, tun->owner)) ||
+ (gid_valid(tun->group) && !in_egroup_p(tun->group))) &&
+ !ns_capable(net->user_ns, CAP_NET_ADMIN);
+}
+
+static void tun_set_real_num_queues(struct tun_struct *tun)
+{
+ netif_set_real_num_tx_queues(tun->dev, tun->numqueues);
+ netif_set_real_num_rx_queues(tun->dev, tun->numqueues);
+}
+
+static void tun_disable_queue(struct tun_struct *tun, struct tun_file *tfile)
+{
+ tfile->detached = tun;
+ list_add_tail(&tfile->next, &tun->disabled);
+ ++tun->numdisabled;
+}
+
+static struct tun_struct *tun_enable_queue(struct tun_file *tfile)
+{
+ struct tun_struct *tun = tfile->detached;
+
+ tfile->detached = NULL;
+ list_del_init(&tfile->next);
+ --tun->numdisabled;
+ return tun;
+}
+
+static void tun_queue_purge(struct tun_file *tfile)
+{
+ skb_queue_purge(&tfile->sk.sk_receive_queue);
+ skb_queue_purge(&tfile->sk.sk_error_queue);
+}
+
+static void __tun_detach(struct tun_file *tfile, bool clean)
+{
+ struct tun_file *ntfile;
+ struct tun_struct *tun;
+
+ tun = rtnl_dereference(tfile->tun);
+
+ if (tun && !tfile->detached) {
+ u16 index = tfile->queue_index;
+ BUG_ON(index >= tun->numqueues);
+
+ rcu_assign_pointer(tun->tfiles[index],
+ tun->tfiles[tun->numqueues - 1]);
+ ntfile = rtnl_dereference(tun->tfiles[index]);
+ ntfile->queue_index = index;
+
+ --tun->numqueues;
+ if (clean) {
+ RCU_INIT_POINTER(tfile->tun, NULL);
+ sock_put(&tfile->sk);
+ } else
+ tun_disable_queue(tun, tfile);
+
+ synchronize_net();
+ tun_flow_delete_by_queue(tun, tun->numqueues + 1);
+ /* Drop read queue */
+ tun_queue_purge(tfile);
+ tun_set_real_num_queues(tun);
+ } else if (tfile->detached && clean) {
+ tun = tun_enable_queue(tfile);
+ sock_put(&tfile->sk);
+ }
+
+ if (clean) {
+ if (tun && tun->numqueues == 0 && tun->numdisabled == 0) {
+ netif_carrier_off(tun->dev);
+
+ if (!(tun->flags & TUN_PERSIST) &&
+ tun->dev->reg_state == NETREG_REGISTERED)
+ unregister_netdevice(tun->dev);
+ }
+
+ BUG_ON(!test_bit(SOCK_EXTERNALLY_ALLOCATED,
+ &tfile->socket.flags));
+ sk_release_kernel(&tfile->sk);
+ }
+}
+
+static void tun_detach(struct tun_file *tfile, bool clean)
+{
+ rtnl_lock();
+ __tun_detach(tfile, clean);
+ rtnl_unlock();
+}
+
+static void tun_detach_all(struct net_device *dev)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+ struct tun_file *tfile, *tmp;
+ int i, n = tun->numqueues;
+
+ for (i = 0; i < n; i++) {
+ tfile = rtnl_dereference(tun->tfiles[i]);
+ BUG_ON(!tfile);
+ tfile->socket.sk->sk_data_ready(tfile->socket.sk);
+ RCU_INIT_POINTER(tfile->tun, NULL);
+ --tun->numqueues;
+ }
+ list_for_each_entry(tfile, &tun->disabled, next) {
+ tfile->socket.sk->sk_data_ready(tfile->socket.sk);
+ RCU_INIT_POINTER(tfile->tun, NULL);
+ }
+ BUG_ON(tun->numqueues != 0);
+
+ synchronize_net();
+ for (i = 0; i < n; i++) {
+ tfile = rtnl_dereference(tun->tfiles[i]);
+ /* Drop read queue */
+ tun_queue_purge(tfile);
+ sock_put(&tfile->sk);
+ }
+ list_for_each_entry_safe(tfile, tmp, &tun->disabled, next) {
+ tun_enable_queue(tfile);
+ tun_queue_purge(tfile);
+ sock_put(&tfile->sk);
+ }
+ BUG_ON(tun->numdisabled != 0);
+
+ if (tun->flags & TUN_PERSIST)
+ module_put(THIS_MODULE);
+}
+
+static int tun_attach(struct tun_struct *tun, struct file *file, bool skip_filter)
+{
+ struct tun_file *tfile = file->private_data;
+ int err;
+
+ err = security_tun_dev_attach(tfile->socket.sk, tun->security);
+ if (err < 0)
+ goto out;
+
+ err = -EINVAL;
+ if (rtnl_dereference(tfile->tun) && !tfile->detached)
+ goto out;
+
+ err = -EBUSY;
+ if (!(tun->flags & TUN_TAP_MQ) && tun->numqueues == 1)
+ goto out;
+
+ err = -E2BIG;
+ if (!tfile->detached &&
+ tun->numqueues + tun->numdisabled == MAX_TAP_QUEUES)
+ goto out;
+
+ err = 0;
+
+ /* Re-attach the filter to persist device */
+ if (!skip_filter && (tun->filter_attached == true)) {
+ err = __sk_attach_filter(&tun->fprog, tfile->socket.sk,
+ lockdep_rtnl_is_held());
+ if (!err)
+ goto out;
+ }
+ tfile->queue_index = tun->numqueues;
+ rcu_assign_pointer(tfile->tun, tun);
+ rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile);
+ tun->numqueues++;
+
+ if (tfile->detached)
+ tun_enable_queue(tfile);
+ else
+ sock_hold(&tfile->sk);
+
+ tun_set_real_num_queues(tun);
+
+ /* device is allowed to go away first, so no need to hold extra
+ * refcnt.
+ */
+
+out:
+ return err;
+}
+
+static struct tun_struct *__tun_get(struct tun_file *tfile)
+{
+ struct tun_struct *tun;
+
+ rcu_read_lock();
+ tun = rcu_dereference(tfile->tun);
+ if (tun)
+ dev_hold(tun->dev);
+ rcu_read_unlock();
+
+ return tun;
+}
+
+static struct tun_struct *tun_get(struct file *file)
+{
+ return __tun_get(file->private_data);
+}
+
+static void tun_put(struct tun_struct *tun)
+{
+ dev_put(tun->dev);
+}
+
+/* TAP filtering */
+static void addr_hash_set(u32 *mask, const u8 *addr)
+{
+ int n = ether_crc(ETH_ALEN, addr) >> 26;
+ mask[n >> 5] |= (1 << (n & 31));
+}
+
+static unsigned int addr_hash_test(const u32 *mask, const u8 *addr)
+{
+ int n = ether_crc(ETH_ALEN, addr) >> 26;
+ return mask[n >> 5] & (1 << (n & 31));
+}
+
+static int update_filter(struct tap_filter *filter, void __user *arg)
+{
+ struct { u8 u[ETH_ALEN]; } *addr;
+ struct tun_filter uf;
+ int err, alen, n, nexact;
+
+ if (copy_from_user(&uf, arg, sizeof(uf)))
+ return -EFAULT;
+
+ if (!uf.count) {
+ /* Disabled */
+ filter->count = 0;
+ return 0;
+ }
+
+ alen = ETH_ALEN * uf.count;
+ addr = kmalloc(alen, GFP_KERNEL);
+ if (!addr)
+ return -ENOMEM;
+
+ if (copy_from_user(addr, arg + sizeof(uf), alen)) {
+ err = -EFAULT;
+ goto done;
+ }
+
+ /* The filter is updated without holding any locks. Which is
+ * perfectly safe. We disable it first and in the worst
+ * case we'll accept a few undesired packets. */
+ filter->count = 0;
+ wmb();
+
+ /* Use first set of addresses as an exact filter */
+ for (n = 0; n < uf.count && n < FLT_EXACT_COUNT; n++)
+ memcpy(filter->addr[n], addr[n].u, ETH_ALEN);
+
+ nexact = n;
+
+ /* Remaining multicast addresses are hashed,
+ * unicast will leave the filter disabled. */
+ memset(filter->mask, 0, sizeof(filter->mask));
+ for (; n < uf.count; n++) {
+ if (!is_multicast_ether_addr(addr[n].u)) {
+ err = 0; /* no filter */
+ goto done;
+ }
+ addr_hash_set(filter->mask, addr[n].u);
+ }
+
+ /* For ALLMULTI just set the mask to all ones.
+ * This overrides the mask populated above. */
+ if ((uf.flags & TUN_FLT_ALLMULTI))
+ memset(filter->mask, ~0, sizeof(filter->mask));
+
+ /* Now enable the filter */
+ wmb();
+ filter->count = nexact;
+
+ /* Return the number of exact filters */
+ err = nexact;
+
+done:
+ kfree(addr);
+ return err;
+}
+
+/* Returns: 0 - drop, !=0 - accept */
+static int run_filter(struct tap_filter *filter, const struct sk_buff *skb)
+{
+ /* Cannot use eth_hdr(skb) here because skb_mac_hdr() is incorrect
+ * at this point. */
+ struct ethhdr *eh = (struct ethhdr *) skb->data;
+ int i;
+
+ /* Exact match */
+ for (i = 0; i < filter->count; i++)
+ if (ether_addr_equal(eh->h_dest, filter->addr[i]))
+ return 1;
+
+ /* Inexact match (multicast only) */
+ if (is_multicast_ether_addr(eh->h_dest))
+ return addr_hash_test(filter->mask, eh->h_dest);
+
+ return 0;
+}
+
+/*
+ * Checks whether the packet is accepted or not.
+ * Returns: 0 - drop, !=0 - accept
+ */
+static int check_filter(struct tap_filter *filter, const struct sk_buff *skb)
+{
+ if (!filter->count)
+ return 1;
+
+ return run_filter(filter, skb);
+}
+
+/* Network device part of the driver */
+
+static const struct ethtool_ops tun_ethtool_ops;
+
+/* Net device detach from fd. */
+static void tun_net_uninit(struct net_device *dev)
+{
+ tun_detach_all(dev);
+}
+
+/* Net device open. */
+static int tun_net_open(struct net_device *dev)
+{
+ netif_tx_start_all_queues(dev);
+ return 0;
+}
+
+/* Net device close. */
+static int tun_net_close(struct net_device *dev)
+{
+ netif_tx_stop_all_queues(dev);
+ return 0;
+}
+
+/* Net device start xmit */
+static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+ int txq = skb->queue_mapping;
+ struct tun_file *tfile;
+ u32 numqueues = 0;
+
+ rcu_read_lock();
+ tfile = rcu_dereference(tun->tfiles[txq]);
+ numqueues = ACCESS_ONCE(tun->numqueues);
+
+ /* Drop packet if interface is not attached */
+ if (txq >= numqueues)
+ goto drop;
+
+ if (numqueues == 1) {
+ /* Select queue was not called for the skbuff, so we extract the
+ * RPS hash and save it into the flow_table here.
+ */
+ __u32 rxhash;
+
+ rxhash = skb_get_hash(skb);
+ if (rxhash) {
+ struct tun_flow_entry *e;
+ e = tun_flow_find(&tun->flows[tun_hashfn(rxhash)],
+ rxhash);
+ if (e)
+ tun_flow_save_rps_rxhash(e, rxhash);
+ }
+ }
+
+ tun_debug(KERN_INFO, tun, "tun_net_xmit %d\n", skb->len);
+
+ BUG_ON(!tfile);
+
+ /* Drop if the filter does not like it.
+ * This is a noop if the filter is disabled.
+ * Filter can be enabled only for the TAP devices. */
+ if (!check_filter(&tun->txflt, skb))
+ goto drop;
+
+ if (tfile->socket.sk->sk_filter &&
+ sk_filter(tfile->socket.sk, skb))
+ goto drop;
+
+ /* Limit the number of packets queued by dividing txq length with the
+ * number of queues.
+ */
+ if (skb_queue_len(&tfile->socket.sk->sk_receive_queue) * numqueues
+ >= dev->tx_queue_len)
+ goto drop;
+
+ if (unlikely(skb_orphan_frags(skb, GFP_ATOMIC)))
+ goto drop;
+
+ if (skb->sk) {
+ sock_tx_timestamp(skb->sk, &skb_shinfo(skb)->tx_flags);
+ sw_tx_timestamp(skb);
+ }
+
+ /* Orphan the skb - required as we might hang on to it
+ * for indefinite time.
+ */
+ skb_orphan(skb);
+
+ nf_reset(skb);
+
+ /* Enqueue packet */
+ skb_queue_tail(&tfile->socket.sk->sk_receive_queue, skb);
+
+ /* Notify and wake up reader process */
+ if (tfile->flags & TUN_FASYNC)
+ kill_fasync(&tfile->fasync, SIGIO, POLL_IN);
+ tfile->socket.sk->sk_data_ready(tfile->socket.sk);
+
+ rcu_read_unlock();
+ return NETDEV_TX_OK;
+
+drop:
+ dev->stats.tx_dropped++;
+ skb_tx_error(skb);
+ kfree_skb(skb);
+ rcu_read_unlock();
+ return NETDEV_TX_OK;
+}
+
+static void tun_net_mclist(struct net_device *dev)
+{
+ /*
+ * This callback is supposed to deal with mc filter in
+ * _rx_ path and has nothing to do with the _tx_ path.
+ * In rx path we always accept everything userspace gives us.
+ */
+}
+
+#define MIN_MTU 68
+#define MAX_MTU 65535
+
+static int
+tun_net_change_mtu(struct net_device *dev, int new_mtu)
+{
+ if (new_mtu < MIN_MTU || new_mtu + dev->hard_header_len > MAX_MTU)
+ return -EINVAL;
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+static netdev_features_t tun_net_fix_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+
+ return (features & tun->set_features) | (features & ~TUN_USER_FEATURES);
+}
+
+static int
+tun_change_carrier(struct net_device *dev, bool new_carrier) {
+ if (new_carrier)
+ netif_carrier_on(dev);
+ else
+ netif_carrier_off(dev);
+ return 0;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void tun_poll_controller(struct net_device *dev)
+{
+ /*
+ * Tun only receives frames when:
+ * 1) the char device endpoint gets data from user space
+ * 2) the tun socket gets a sendmsg call from user space
+ * Since both of those are synchronous operations, we are guaranteed
+ * never to have pending data when we poll for it
+ * so there is nothing to do here but return.
+ * We need this though so netpoll recognizes us as an interface that
+ * supports polling, which enables bridge devices in virt setups to
+ * still use netconsole
+ */
+ return;
+}
+#endif
+static const struct net_device_ops tun_netdev_ops = {
+ .ndo_uninit = tun_net_uninit,
+ .ndo_open = tun_net_open,
+ .ndo_stop = tun_net_close,
+ .ndo_start_xmit = tun_net_xmit,
+ .ndo_change_mtu = tun_net_change_mtu,
+ .ndo_fix_features = tun_net_fix_features,
+ .ndo_select_queue = tun_select_queue,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = tun_poll_controller,
+#endif
+};
+
+static const struct net_device_ops tap_netdev_ops = {
+ .ndo_uninit = tun_net_uninit,
+ .ndo_open = tun_net_open,
+ .ndo_stop = tun_net_close,
+ .ndo_start_xmit = tun_net_xmit,
+ .ndo_change_mtu = tun_net_change_mtu,
+ .ndo_fix_features = tun_net_fix_features,
+ .ndo_set_rx_mode = tun_net_mclist,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_select_queue = tun_select_queue,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = tun_poll_controller,
+#endif
+ .ndo_change_carrier = tun_change_carrier,
+};
+
+static void tun_flow_init(struct tun_struct *tun)
+{
+ int i;
+
+ for (i = 0; i < TUN_NUM_FLOW_ENTRIES; i++)
+ INIT_HLIST_HEAD(&tun->flows[i]);
+
+ tun->ageing_time = TUN_FLOW_EXPIRE;
+ setup_timer(&tun->flow_gc_timer, tun_flow_cleanup, (unsigned long)tun);
+ mod_timer(&tun->flow_gc_timer,
+ round_jiffies_up(jiffies + tun->ageing_time));
+}
+
+static void tun_flow_uninit(struct tun_struct *tun)
+{
+ del_timer_sync(&tun->flow_gc_timer);
+ tun_flow_flush(tun);
+}
+
+/* Initialize net device. */
+static void tun_net_init(struct net_device *dev)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+
+ switch (tun->flags & TUN_TYPE_MASK) {
+ case TUN_TUN_DEV:
+ dev->netdev_ops = &tun_netdev_ops;
+
+ /* Point-to-Point TUN Device */
+ dev->hard_header_len = 0;
+ dev->addr_len = 0;
+ dev->mtu = 1500;
+
+ /* Zero header length */
+ dev->type = ARPHRD_NONE;
+ dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+ dev->tx_queue_len = TUN_READQ_SIZE*2; /* We prefer our own queue length */
+ break;
+
+ case TUN_TAP_DEV:
+ dev->netdev_ops = &tap_netdev_ops;
+ /* Ethernet TAP Device */
+ ether_setup(dev);
+ dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+ dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+
+ eth_hw_addr_random(dev);
+
+ dev->tx_queue_len = TUN_READQ_SIZE*2; /* We prefer our own queue length */
+ break;
+ }
+}
+
+/* Character device part */
+
+/* Poll */
+static unsigned int tun_chr_poll(struct file *file, poll_table *wait)
+{
+ struct tun_file *tfile = file->private_data;
+ struct tun_struct *tun = __tun_get(tfile);
+ struct sock *sk;
+ unsigned int mask = 0;
+
+ if (!tun)
+ return POLLERR;
+
+ sk = tfile->socket.sk;
+
+ tun_debug(KERN_INFO, tun, "tun_chr_poll\n");
+
+ poll_wait(file, sk_sleep(sk), wait);
+
+ if (!skb_queue_empty(&sk->sk_receive_queue))
+ mask |= POLLIN | POLLRDNORM;
+
+ if (sock_writeable(sk) ||
+ (!test_and_set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
+ sock_writeable(sk)))
+ mask |= POLLOUT | POLLWRNORM;
+
+ if (tun->dev->reg_state != NETREG_REGISTERED)
+ mask = POLLERR;
+
+ tun_put(tun);
+ return mask;
+}
+
+/* prepad is the amount to reserve at front. len is length after that.
+ * linear is a hint as to how much to copy (usually headers). */
+static struct sk_buff *tun_alloc_skb(struct tun_file *tfile,
+ size_t prepad, size_t len,
+ size_t linear, int noblock)
+{
+ struct sock *sk = tfile->socket.sk;
+ struct sk_buff *skb;
+ int err;
+
+ /* Under a page? Don't bother with paged skb. */
+ if (prepad + len < PAGE_SIZE || !linear)
+ linear = len;
+
+ skb = sock_alloc_send_pskb(sk, prepad + linear, len - linear, noblock,
+ &err, 0);
+ if (!skb)
+ return ERR_PTR(err);
+
+ skb_reserve(skb, prepad);
+ skb_put(skb, linear);
+ skb->data_len = len - linear;
+ skb->len += len - linear;
+
+ return skb;
+}
+
+/* Get packet from user space buffer */
+static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
+ void *msg_control, const struct iovec *iv,
+ size_t total_len, size_t count, int noblock)
+{
+ struct tun_pi pi = { 0, cpu_to_be16(ETH_P_IP) };
+ struct sk_buff *skb;
+ size_t len = total_len, align = NET_SKB_PAD, linear;
+ struct virtio_net_hdr gso = { 0 };
+ int good_linear;
+ int offset = 0;
+ int copylen;
+ bool zerocopy = false;
+ int err;
+ u32 rxhash;
+
+ if (!(tun->flags & TUN_NO_PI)) {
+ if (len < sizeof(pi))
+ return -EINVAL;
+ len -= sizeof(pi);
+
+ if (memcpy_fromiovecend((void *)&pi, iv, 0, sizeof(pi)))
+ return -EFAULT;
+ offset += sizeof(pi);
+ }
+
+ if (tun->flags & TUN_VNET_HDR) {
+ if (len < tun->vnet_hdr_sz)
+ return -EINVAL;
+ len -= tun->vnet_hdr_sz;
+
+ if (memcpy_fromiovecend((void *)&gso, iv, offset, sizeof(gso)))
+ return -EFAULT;
+
+ if ((gso.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) &&
+ gso.csum_start + gso.csum_offset + 2 > gso.hdr_len)
+ gso.hdr_len = gso.csum_start + gso.csum_offset + 2;
+
+ if (gso.hdr_len > len)
+ return -EINVAL;
+ offset += tun->vnet_hdr_sz;
+ }
+
+ if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) {
+ align += NET_IP_ALIGN;
+ if (unlikely(len < ETH_HLEN ||
+ (gso.hdr_len && gso.hdr_len < ETH_HLEN)))
+ return -EINVAL;
+ }
+
+ good_linear = SKB_MAX_HEAD(align);
+
+ if (msg_control) {
+ /* There are 256 bytes to be copied in skb, so there is
+ * enough room for skb expand head in case it is used.
+ * The rest of the buffer is mapped from userspace.
+ */
+ copylen = gso.hdr_len ? gso.hdr_len : GOODCOPY_LEN;
+ if (copylen > good_linear)
+ copylen = good_linear;
+ linear = copylen;
+ if (iov_pages(iv, offset + copylen, count) <= MAX_SKB_FRAGS)
+ zerocopy = true;
+ }
+
+ if (!zerocopy) {
+ copylen = len;
+ if (gso.hdr_len > good_linear)
+ linear = good_linear;
+ else
+ linear = gso.hdr_len;
+ }
+
+ skb = tun_alloc_skb(tfile, align, copylen, linear, noblock);
+ if (IS_ERR(skb)) {
+ if (PTR_ERR(skb) != -EAGAIN)
+ tun->dev->stats.rx_dropped++;
+ return PTR_ERR(skb);
+ }
+
+ if (zerocopy)
+ err = zerocopy_sg_from_iovec(skb, iv, offset, count);
+ else {
+ err = skb_copy_datagram_from_iovec(skb, 0, iv, offset, len);
+ if (!err && msg_control) {
+ struct ubuf_info *uarg = msg_control;
+ uarg->callback(uarg, false);
+ }
+ }
+
+ if (err) {
+ tun->dev->stats.rx_dropped++;
+ kfree_skb(skb);
+ return -EFAULT;
+ }
+
+ if (gso.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
+ if (!skb_partial_csum_set(skb, gso.csum_start,
+ gso.csum_offset)) {
+ tun->dev->stats.rx_frame_errors++;
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ }
+
+ switch (tun->flags & TUN_TYPE_MASK) {
+ case TUN_TUN_DEV:
+ if (tun->flags & TUN_NO_PI) {
+ switch (skb->data[0] & 0xf0) {
+ case 0x40:
+ pi.proto = htons(ETH_P_IP);
+ break;
+ case 0x60:
+ pi.proto = htons(ETH_P_IPV6);
+ break;
+ default:
+ tun->dev->stats.rx_dropped++;
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ }
+
+ skb_reset_mac_header(skb);
+ skb->protocol = pi.proto;
+ skb->dev = tun->dev;
+ break;
+ case TUN_TAP_DEV:
+ skb->protocol = eth_type_trans(skb, tun->dev);
+ break;
+ }
+
+ skb_reset_network_header(skb);
+
+ if (gso.gso_type != VIRTIO_NET_HDR_GSO_NONE) {
+ pr_debug("GSO!\n");
+ switch (gso.gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
+ case VIRTIO_NET_HDR_GSO_TCPV4:
+ skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
+ break;
+ case VIRTIO_NET_HDR_GSO_TCPV6:
+ skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
+ break;
+ case VIRTIO_NET_HDR_GSO_UDP:
+ skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+ if (skb->protocol == htons(ETH_P_IPV6))
+ ipv6_proxy_select_ident(skb);
+ break;
+ default:
+ tun->dev->stats.rx_frame_errors++;
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+
+ if (gso.gso_type & VIRTIO_NET_HDR_GSO_ECN)
+ skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
+
+ skb_shinfo(skb)->gso_size = gso.gso_size;
+ if (skb_shinfo(skb)->gso_size == 0) {
+ tun->dev->stats.rx_frame_errors++;
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+
+ /* Header must be checked, and gso_segs computed. */
+ skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY;
+ skb_shinfo(skb)->gso_segs = 0;
+ }
+
+ /* copy skb_ubuf_info for callback when skb has no error */
+ if (zerocopy) {
+ skb_shinfo(skb)->destructor_arg = msg_control;
+ skb_shinfo(skb)->tx_flags |= SKBTX_DEV_ZEROCOPY;
+ skb_shinfo(skb)->tx_flags |= SKBTX_SHARED_FRAG;
+ }
+
+ skb_probe_transport_header(skb, 0);
+
+ rxhash = skb_get_hash(skb);
+ netif_rx_ni(skb);
+
+ tun->dev->stats.rx_packets++;
+ tun->dev->stats.rx_bytes += len;
+
+ tun_flow_update(tun, rxhash, tfile);
+ return total_len;
+}
+
+static ssize_t tun_chr_aio_write(struct kiocb *iocb, const struct iovec *iv,
+ unsigned long count, loff_t pos)
+{
+ struct file *file = iocb->ki_filp;
+ struct tun_struct *tun = tun_get(file);
+ struct tun_file *tfile = file->private_data;
+ ssize_t result;
+
+ if (!tun)
+ return -EBADFD;
+
+ tun_debug(KERN_INFO, tun, "tun_chr_write %ld\n", count);
+
+ result = tun_get_user(tun, tfile, NULL, iv, iov_length(iv, count),
+ count, file->f_flags & O_NONBLOCK);
+
+ tun_put(tun);
+ return result;
+}
+
+/* Put packet to the user space buffer */
+static ssize_t tun_put_user(struct tun_struct *tun,
+ struct tun_file *tfile,
+ struct sk_buff *skb,
+ const struct iovec *iv, int len)
+{
+ struct tun_pi pi = { 0, skb->protocol };
+ ssize_t total = 0;
+ int vlan_offset = 0, copied;
+ int vlan_hlen = 0;
+
+ if (vlan_tx_tag_present(skb))
+ vlan_hlen = VLAN_HLEN;
+
+ if (!(tun->flags & TUN_NO_PI)) {
+ if ((len -= sizeof(pi)) < 0)
+ return -EINVAL;
+
+ if (len < skb->len) {
+ /* Packet will be striped */
+ pi.flags |= TUN_PKT_STRIP;
+ }
+
+ if (memcpy_toiovecend(iv, (void *) &pi, 0, sizeof(pi)))
+ return -EFAULT;
+ total += sizeof(pi);
+ }
+
+ if (tun->flags & TUN_VNET_HDR) {
+ struct virtio_net_hdr gso = { 0 }; /* no info leak */
+ if ((len -= tun->vnet_hdr_sz) < 0)
+ return -EINVAL;
+
+ if (skb_is_gso(skb)) {
+ struct skb_shared_info *sinfo = skb_shinfo(skb);
+
+ /* This is a hint as to how much should be linear. */
+ gso.hdr_len = skb_headlen(skb);
+ gso.gso_size = sinfo->gso_size;
+ if (sinfo->gso_type & SKB_GSO_TCPV4)
+ gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
+ else if (sinfo->gso_type & SKB_GSO_TCPV6)
+ gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV6;
+ else if (sinfo->gso_type & SKB_GSO_UDP)
+ gso.gso_type = VIRTIO_NET_HDR_GSO_UDP;
+ else {
+ pr_err("unexpected GSO type: "
+ "0x%x, gso_size %d, hdr_len %d\n",
+ sinfo->gso_type, gso.gso_size,
+ gso.hdr_len);
+ print_hex_dump(KERN_ERR, "tun: ",
+ DUMP_PREFIX_NONE,
+ 16, 1, skb->head,
+ min((int)gso.hdr_len, 64), true);
+ WARN_ON_ONCE(1);
+ return -EINVAL;
+ }
+ if (sinfo->gso_type & SKB_GSO_TCP_ECN)
+ gso.gso_type |= VIRTIO_NET_HDR_GSO_ECN;
+ } else
+ gso.gso_type = VIRTIO_NET_HDR_GSO_NONE;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ gso.flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+ gso.csum_start = skb_checksum_start_offset(skb) +
+ vlan_hlen;
+ gso.csum_offset = skb->csum_offset;
+ } else if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ gso.flags = VIRTIO_NET_HDR_F_DATA_VALID;
+ } /* else everything is zero */
+
+ if (unlikely(memcpy_toiovecend(iv, (void *)&gso, total,
+ sizeof(gso))))
+ return -EFAULT;
+ total += tun->vnet_hdr_sz;
+ }
+
+ copied = total;
+ len = min_t(int, skb->len + vlan_hlen, len);
+ total += skb->len + vlan_hlen;
+ if (vlan_hlen) {
+ int copy, ret;
+ struct {
+ __be16 h_vlan_proto;
+ __be16 h_vlan_TCI;
+ } veth;
+
+ veth.h_vlan_proto = skb->vlan_proto;
+ veth.h_vlan_TCI = htons(vlan_tx_tag_get(skb));
+
+ vlan_offset = offsetof(struct vlan_ethhdr, h_vlan_proto);
+
+ copy = min_t(int, vlan_offset, len);
+ ret = skb_copy_datagram_const_iovec(skb, 0, iv, copied, copy);
+ len -= copy;
+ copied += copy;
+ if (ret || !len)
+ goto done;
+
+ copy = min_t(int, sizeof(veth), len);
+ ret = memcpy_toiovecend(iv, (void *)&veth, copied, copy);
+ len -= copy;
+ copied += copy;
+ if (ret || !len)
+ goto done;
+ }
+
+ skb_copy_datagram_const_iovec(skb, vlan_offset, iv, copied, len);
+
+done:
+ tun->dev->stats.tx_packets++;
+ tun->dev->stats.tx_bytes += len;
+
+ return total;
+}
+
+static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile,
+ const struct iovec *iv, ssize_t len, int noblock)
+{
+ struct sk_buff *skb;
+ ssize_t ret = 0;
+ int peeked, err, off = 0;
+
+ tun_debug(KERN_INFO, tun, "tun_do_read\n");
+
+ if (!len)
+ return ret;
+
+ if (tun->dev->reg_state != NETREG_REGISTERED)
+ return -EIO;
+
+ /* Read frames from queue */
+ skb = __skb_recv_datagram(tfile->socket.sk, noblock ? MSG_DONTWAIT : 0,
+ &peeked, &off, &err);
+ if (skb) {
+ ret = tun_put_user(tun, tfile, skb, iv, len);
+ kfree_skb(skb);
+ } else
+ ret = err;
+
+ return ret;
+}
+
+static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv,
+ unsigned long count, loff_t pos)
+{
+ struct file *file = iocb->ki_filp;
+ struct tun_file *tfile = file->private_data;
+ struct tun_struct *tun = __tun_get(tfile);
+ ssize_t len, ret;
+
+ if (!tun)
+ return -EBADFD;
+ len = iov_length(iv, count);
+ if (len < 0) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = tun_do_read(tun, tfile, iv, len,
+ file->f_flags & O_NONBLOCK);
+ ret = min_t(ssize_t, ret, len);
+ if (ret > 0)
+ iocb->ki_pos = ret;
+out:
+ tun_put(tun);
+ return ret;
+}
+
+static void tun_free_netdev(struct net_device *dev)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+
+ BUG_ON(!(list_empty(&tun->disabled)));
+ tun_flow_uninit(tun);
+ security_tun_dev_free_security(tun->security);
+ free_netdev(dev);
+}
+
+static void tun_setup(struct net_device *dev)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+
+ tun->owner = INVALID_UID;
+ tun->group = INVALID_GID;
+
+ dev->ethtool_ops = &tun_ethtool_ops;
+ dev->destructor = tun_free_netdev;
+}
+
+/* Trivial set of netlink ops to allow deleting tun or tap
+ * device with netlink.
+ */
+static int tun_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+ return -EINVAL;
+}
+
+static struct rtnl_link_ops tun_link_ops __read_mostly = {
+ .kind = DRV_NAME,
+ .priv_size = sizeof(struct tun_struct),
+ .setup = tun_setup,
+ .validate = tun_validate,
+};
+
+static void tun_sock_write_space(struct sock *sk)
+{
+ struct tun_file *tfile;
+ wait_queue_head_t *wqueue;
+
+ if (!sock_writeable(sk))
+ return;
+
+ if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags))
+ return;
+
+ wqueue = sk_sleep(sk);
+ if (wqueue && waitqueue_active(wqueue))
+ wake_up_interruptible_sync_poll(wqueue, POLLOUT |
+ POLLWRNORM | POLLWRBAND);
+
+ tfile = container_of(sk, struct tun_file, sk);
+ kill_fasync(&tfile->fasync, SIGIO, POLL_OUT);
+}
+
+static int tun_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *m, size_t total_len)
+{
+ int ret;
+ struct tun_file *tfile = container_of(sock, struct tun_file, socket);
+ struct tun_struct *tun = __tun_get(tfile);
+
+ if (!tun)
+ return -EBADFD;
+ ret = tun_get_user(tun, tfile, m->msg_control, m->msg_iov, total_len,
+ m->msg_iovlen, m->msg_flags & MSG_DONTWAIT);
+ tun_put(tun);
+ return ret;
+}
+
+static int tun_recvmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *m, size_t total_len,
+ int flags)
+{
+ struct tun_file *tfile = container_of(sock, struct tun_file, socket);
+ struct tun_struct *tun = __tun_get(tfile);
+ int ret;
+
+ if (!tun)
+ return -EBADFD;
+
+ if (flags & ~(MSG_DONTWAIT|MSG_TRUNC|MSG_ERRQUEUE)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ if (flags & MSG_ERRQUEUE) {
+ ret = sock_recv_errqueue(sock->sk, m, total_len,
+ SOL_PACKET, TUN_TX_TIMESTAMP);
+ goto out;
+ }
+ ret = tun_do_read(tun, tfile, m->msg_iov, total_len,
+ flags & MSG_DONTWAIT);
+ if (ret > total_len) {
+ m->msg_flags |= MSG_TRUNC;
+ ret = flags & MSG_TRUNC ? ret : total_len;
+ }
+out:
+ tun_put(tun);
+ return ret;
+}
+
+static int tun_release(struct socket *sock)
+{
+ if (sock->sk)
+ sock_put(sock->sk);
+ return 0;
+}
+
+/* Ops structure to mimic raw sockets with tun */
+static const struct proto_ops tun_socket_ops = {
+ .sendmsg = tun_sendmsg,
+ .recvmsg = tun_recvmsg,
+ .release = tun_release,
+};
+
+static struct proto tun_proto = {
+ .name = "bf_tun",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct tun_file),
+};
+
+static int tun_flags(struct tun_struct *tun)
+{
+ int flags = 0;
+
+ if (tun->flags & TUN_TUN_DEV)
+ flags |= IFF_TUN;
+ else
+ flags |= IFF_TAP;
+
+ if (tun->flags & TUN_NO_PI)
+ flags |= IFF_NO_PI;
+
+ /* This flag has no real effect. We track the value for backwards
+ * compatibility.
+ */
+ if (tun->flags & TUN_ONE_QUEUE)
+ flags |= IFF_ONE_QUEUE;
+
+ if (tun->flags & TUN_VNET_HDR)
+ flags |= IFF_VNET_HDR;
+
+ if (tun->flags & TUN_TAP_MQ)
+ flags |= IFF_MULTI_QUEUE;
+
+ if (tun->flags & TUN_PERSIST)
+ flags |= IFF_PERSIST;
+
+ return flags;
+}
+
+static ssize_t tun_show_flags(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct tun_struct *tun = netdev_priv(to_net_dev(dev));
+ return sprintf(buf, "0x%x\n", tun_flags(tun));
+}
+
+static ssize_t tun_show_owner(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct tun_struct *tun = netdev_priv(to_net_dev(dev));
+ return uid_valid(tun->owner)?
+ sprintf(buf, "%u\n",
+ from_kuid_munged(current_user_ns(), tun->owner)):
+ sprintf(buf, "-1\n");
+}
+
+static ssize_t tun_show_group(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct tun_struct *tun = netdev_priv(to_net_dev(dev));
+ return gid_valid(tun->group) ?
+ sprintf(buf, "%u\n",
+ from_kgid_munged(current_user_ns(), tun->group)):
+ sprintf(buf, "-1\n");
+}
+
+static DEVICE_ATTR(tun_flags, 0444, tun_show_flags, NULL);
+static DEVICE_ATTR(owner, 0444, tun_show_owner, NULL);
+static DEVICE_ATTR(group, 0444, tun_show_group, NULL);
+
+static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
+{
+ struct tun_struct *tun;
+ struct tun_file *tfile = file->private_data;
+ struct net_device *dev;
+ int err;
+
+ if (tfile->detached)
+ return -EINVAL;
+
+ dev = __dev_get_by_name(net, ifr->ifr_name);
+ if (dev) {
+ if (ifr->ifr_flags & IFF_TUN_EXCL)
+ return -EBUSY;
+ if ((ifr->ifr_flags & IFF_TUN) && dev->netdev_ops == &tun_netdev_ops)
+ tun = netdev_priv(dev);
+ else if ((ifr->ifr_flags & IFF_TAP) && dev->netdev_ops == &tap_netdev_ops)
+ tun = netdev_priv(dev);
+ else
+ return -EINVAL;
+
+ if (!!(ifr->ifr_flags & IFF_MULTI_QUEUE) !=
+ !!(tun->flags & TUN_TAP_MQ))
+ return -EINVAL;
+
+ if (tun_not_capable(tun))
+ return -EPERM;
+ err = security_tun_dev_open(tun->security);
+ if (err < 0)
+ return err;
+
+ err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER);
+ if (err < 0)
+ return err;
+
+ if (tun->flags & TUN_TAP_MQ &&
+ (tun->numqueues + tun->numdisabled > 1)) {
+ /* One or more queue has already been attached, no need
+ * to initialize the device again.
+ */
+ return 0;
+ }
+ }
+ else {
+ char *name;
+ unsigned long flags = 0;
+ int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ?
+ MAX_TAP_QUEUES : 1;
+
+ if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+ return -EPERM;
+ err = security_tun_dev_create();
+ if (err < 0)
+ return err;
+
+ /* Set dev type */
+ if (ifr->ifr_flags & IFF_TUN) {
+ /* TUN device */
+ flags |= TUN_TUN_DEV;
+ name = "tun%d";
+ } else if (ifr->ifr_flags & IFF_TAP) {
+ /* TAP device */
+ flags |= TUN_TAP_DEV;
+ name = "tap%d";
+ } else
+ return -EINVAL;
+
+ if (*ifr->ifr_name)
+ name = ifr->ifr_name;
+
+ dev = alloc_netdev_mqs(sizeof(struct tun_struct), name,
+ tun_setup, queues, queues);
+
+ if (!dev)
+ return -ENOMEM;
+
+ dev_net_set(dev, net);
+ dev->rtnl_link_ops = &tun_link_ops;
+ dev->ifindex = tfile->ifindex;
+
+ tun = netdev_priv(dev);
+ tun->dev = dev;
+ tun->flags = flags;
+ tun->txflt.count = 0;
+ tun->vnet_hdr_sz = sizeof(struct virtio_net_hdr);
+
+ tun->filter_attached = false;
+ tun->sndbuf = tfile->socket.sk->sk_sndbuf;
+
+ spin_lock_init(&tun->lock);
+
+ err = security_tun_dev_alloc_security(&tun->security);
+ if (err < 0)
+ goto err_free_dev;
+
+ tun_net_init(dev);
+ tun_flow_init(tun);
+
+ dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST |
+ TUN_USER_FEATURES | NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX;
+ dev->features = dev->hw_features;
+ dev->vlan_features = dev->features &
+ ~(NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX);
+
+ INIT_LIST_HEAD(&tun->disabled);
+ err = tun_attach(tun, file, false);
+ if (err < 0)
+ goto err_free_flow;
+
+ err = register_netdevice(tun->dev);
+ if (err < 0)
+ goto err_detach;
+
+ if (device_create_file(&tun->dev->dev, &dev_attr_tun_flags) ||
+ device_create_file(&tun->dev->dev, &dev_attr_owner) ||
+ device_create_file(&tun->dev->dev, &dev_attr_group))
+ pr_err("Failed to create tun sysfs files\n");
+ }
+
+ netif_carrier_on(tun->dev);
+
+ tun_debug(KERN_INFO, tun, "tun_set_iff\n");
+
+ if (ifr->ifr_flags & IFF_NO_PI)
+ tun->flags |= TUN_NO_PI;
+ else
+ tun->flags &= ~TUN_NO_PI;
+
+ /* This flag has no real effect. We track the value for backwards
+ * compatibility.
+ */
+ if (ifr->ifr_flags & IFF_ONE_QUEUE)
+ tun->flags |= TUN_ONE_QUEUE;
+ else
+ tun->flags &= ~TUN_ONE_QUEUE;
+
+ if (ifr->ifr_flags & IFF_VNET_HDR)
+ tun->flags |= TUN_VNET_HDR;
+ else
+ tun->flags &= ~TUN_VNET_HDR;
+
+ if (ifr->ifr_flags & IFF_MULTI_QUEUE)
+ tun->flags |= TUN_TAP_MQ;
+ else
+ tun->flags &= ~TUN_TAP_MQ;
+
+ /* Make sure persistent devices do not get stuck in
+ * xoff state.
+ */
+ if (netif_running(tun->dev))
+ netif_tx_wake_all_queues(tun->dev);
+
+ strcpy(ifr->ifr_name, tun->dev->name);
+ return 0;
+
+err_detach:
+ tun_detach_all(dev);
+err_free_flow:
+ tun_flow_uninit(tun);
+ security_tun_dev_free_security(tun->security);
+err_free_dev:
+ free_netdev(dev);
+ return err;
+}
+
+static void tun_get_iff(struct net *net, struct tun_struct *tun,
+ struct ifreq *ifr)
+{
+ tun_debug(KERN_INFO, tun, "tun_get_iff\n");
+
+ strcpy(ifr->ifr_name, tun->dev->name);
+
+ ifr->ifr_flags = tun_flags(tun);
+
+}
+
+/* This is like a cut-down ethtool ops, except done via tun fd so no
+ * privs required. */
+static int set_offload(struct tun_struct *tun, unsigned long arg)
+{
+ netdev_features_t features = 0;
+
+ if (arg & TUN_F_CSUM) {
+ features |= NETIF_F_HW_CSUM;
+ arg &= ~TUN_F_CSUM;
+
+ if (arg & (TUN_F_TSO4|TUN_F_TSO6)) {
+ if (arg & TUN_F_TSO_ECN) {
+ features |= NETIF_F_TSO_ECN;
+ arg &= ~TUN_F_TSO_ECN;
+ }
+ if (arg & TUN_F_TSO4)
+ features |= NETIF_F_TSO;
+ if (arg & TUN_F_TSO6)
+ features |= NETIF_F_TSO6;
+ arg &= ~(TUN_F_TSO4|TUN_F_TSO6);
+ }
+
+ if (arg & TUN_F_UFO) {
+ features |= NETIF_F_UFO;
+ arg &= ~TUN_F_UFO;
+ }
+ }
+
+ /* This gives the user a way to test for new features in future by
+ * trying to set them. */
+ if (arg)
+ return -EINVAL;
+
+ tun->set_features = features;
+ netdev_update_features(tun->dev);
+
+ return 0;
+}
+
+static void tun_detach_filter(struct tun_struct *tun, int n)
+{
+ int i;
+ struct tun_file *tfile;
+
+ for (i = 0; i < n; i++) {
+ tfile = rtnl_dereference(tun->tfiles[i]);
+ __sk_detach_filter(tfile->socket.sk, lockdep_rtnl_is_held());
+ }
+
+ tun->filter_attached = false;
+}
+
+static int tun_attach_filter(struct tun_struct *tun)
+{
+ int i, ret = 0;
+ struct tun_file *tfile;
+
+ for (i = 0; i < tun->numqueues; i++) {
+ tfile = rtnl_dereference(tun->tfiles[i]);
+ ret = __sk_attach_filter(&tun->fprog, tfile->socket.sk,
+ lockdep_rtnl_is_held());
+ if (ret) {
+ tun_detach_filter(tun, i);
+ return ret;
+ }
+ }
+
+ tun->filter_attached = true;
+ return ret;
+}
+
+static void tun_set_sndbuf(struct tun_struct *tun)
+{
+ struct tun_file *tfile;
+ int i;
+
+ for (i = 0; i < tun->numqueues; i++) {
+ tfile = rtnl_dereference(tun->tfiles[i]);
+ tfile->socket.sk->sk_sndbuf = tun->sndbuf;
+ }
+}
+
+static int tun_set_queue(struct file *file, struct ifreq *ifr)
+{
+ struct tun_file *tfile = file->private_data;
+ struct tun_struct *tun;
+ int ret = 0;
+
+ rtnl_lock();
+
+ if (ifr->ifr_flags & IFF_ATTACH_QUEUE) {
+ tun = tfile->detached;
+ if (!tun) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ ret = security_tun_dev_attach_queue(tun->security);
+ if (ret < 0)
+ goto unlock;
+ ret = tun_attach(tun, file, false);
+ } else if (ifr->ifr_flags & IFF_DETACH_QUEUE) {
+ tun = rtnl_dereference(tfile->tun);
+ if (!tun || !(tun->flags & TUN_TAP_MQ) || tfile->detached)
+ ret = -EINVAL;
+ else
+ __tun_detach(tfile, false);
+ } else
+ ret = -EINVAL;
+
+unlock:
+ rtnl_unlock();
+ return ret;
+}
+
+static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg, int ifreq_len)
+{
+ struct tun_file *tfile = file->private_data;
+ struct tun_struct *tun;
+ void __user* argp = (void __user*)arg;
+ struct ifreq ifr;
+ kuid_t owner;
+ kgid_t group;
+ int sndbuf;
+ int vnet_hdr_sz;
+ unsigned int ifindex;
+ int ret;
+
+ if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
+ if (copy_from_user(&ifr, argp, ifreq_len))
+ return -EFAULT;
+ } else {
+ memset(&ifr, 0, sizeof(ifr));
+ }
+ if (cmd == TUNGETFEATURES) {
+ /* Currently this just means: "what IFF flags are valid?".
+ * This is needed because we never checked for invalid flags on
+ * TUNSETIFF. */
+ return put_user(IFF_TUN | IFF_TAP | IFF_NO_PI | IFF_ONE_QUEUE |
+ IFF_VNET_HDR | IFF_MULTI_QUEUE,
+ (unsigned int __user*)argp);
+ } else if (cmd == TUNSETQUEUE)
+ return tun_set_queue(file, &ifr);
+
+ ret = 0;
+ rtnl_lock();
+
+ tun = __tun_get(tfile);
+ if (cmd == TUNSETIFF && !tun) {
+ ifr.ifr_name[IFNAMSIZ-1] = '\0';
+
+ ret = tun_set_iff(tfile->net, file, &ifr);
+
+ if (ret)
+ goto unlock;
+
+ if (copy_to_user(argp, &ifr, ifreq_len))
+ ret = -EFAULT;
+ goto unlock;
+ }
+ if (cmd == TUNSETIFINDEX) {
+ ret = -EPERM;
+ if (tun)
+ goto unlock;
+
+ ret = -EFAULT;
+ if (copy_from_user(&ifindex, argp, sizeof(ifindex)))
+ goto unlock;
+
+ ret = 0;
+ tfile->ifindex = ifindex;
+ goto unlock;
+ }
+
+ ret = -EBADFD;
+ if (!tun)
+ goto unlock;
+
+ tun_debug(KERN_INFO, tun, "tun_chr_ioctl cmd %u\n", cmd);
+
+ ret = 0;
+ switch (cmd) {
+ case TUNGETIFF:
+ tun_get_iff(current->nsproxy->net_ns, tun, &ifr);
+
+ if (tfile->detached)
+ ifr.ifr_flags |= IFF_DETACH_QUEUE;
+ if (!tfile->socket.sk->sk_filter)
+ ifr.ifr_flags |= IFF_NOFILTER;
+
+ if (copy_to_user(argp, &ifr, ifreq_len))
+ ret = -EFAULT;
+ break;
+
+ case TUNSETNOCSUM:
+ /* Disable/Enable checksum */
+
+ /* [unimplemented] */
+ tun_debug(KERN_INFO, tun, "ignored: set checksum %s\n",
+ arg ? "disabled" : "enabled");
+ break;
+
+ case TUNSETPERSIST:
+ /* Disable/Enable persist mode. Keep an extra reference to the
+ * module to prevent the module being unprobed.
+ */
+ if (arg && !(tun->flags & TUN_PERSIST)) {
+ tun->flags |= TUN_PERSIST;
+ __module_get(THIS_MODULE);
+ }
+ if (!arg && (tun->flags & TUN_PERSIST)) {
+ tun->flags &= ~TUN_PERSIST;
+ module_put(THIS_MODULE);
+ }
+
+ tun_debug(KERN_INFO, tun, "persist %s\n",
+ arg ? "enabled" : "disabled");
+ break;
+
+ case TUNSETOWNER:
+ /* Set owner of the device */
+ owner = make_kuid(current_user_ns(), arg);
+ if (!uid_valid(owner)) {
+ ret = -EINVAL;
+ break;
+ }
+ tun->owner = owner;
+ tun_debug(KERN_INFO, tun, "owner set to %u\n",
+ from_kuid(&init_user_ns, tun->owner));
+ break;
+
+ case TUNSETGROUP:
+ /* Set group of the device */
+ group = make_kgid(current_user_ns(), arg);
+ if (!gid_valid(group)) {
+ ret = -EINVAL;
+ break;
+ }
+ tun->group = group;
+ tun_debug(KERN_INFO, tun, "group set to %u\n",
+ from_kgid(&init_user_ns, tun->group));
+ break;
+
+ case TUNSETLINK:
+ /* Only allow setting the type when the interface is down */
+ if (tun->dev->flags & IFF_UP) {
+ tun_debug(KERN_INFO, tun,
+ "Linktype set failed because interface is up\n");
+ ret = -EBUSY;
+ } else {
+ tun->dev->type = (int) arg;
+ tun_debug(KERN_INFO, tun, "linktype set to %d\n",
+ tun->dev->type);
+ ret = 0;
+ }
+ break;
+
+#ifdef TUN_DEBUG
+ case TUNSETDEBUG:
+ tun->debug = arg;
+ break;
+#endif
+ case TUNSETOFFLOAD:
+ ret = set_offload(tun, arg);
+ break;
+
+ case TUNSETTXFILTER:
+ /* Can be set only for TAPs */
+ ret = -EINVAL;
+ if ((tun->flags & TUN_TYPE_MASK) != TUN_TAP_DEV)
+ break;
+ ret = update_filter(&tun->txflt, (void __user *)arg);
+ break;
+
+ case SIOCGIFHWADDR:
+ /* Get hw address */
+ memcpy(ifr.ifr_hwaddr.sa_data, tun->dev->dev_addr, ETH_ALEN);
+ ifr.ifr_hwaddr.sa_family = tun->dev->type;
+ if (copy_to_user(argp, &ifr, ifreq_len))
+ ret = -EFAULT;
+ break;
+
+ case SIOCSIFHWADDR:
+ /* Set hw address */
+ tun_debug(KERN_DEBUG, tun, "set hw address: %pM\n",
+ ifr.ifr_hwaddr.sa_data);
+
+ ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr);
+ break;
+
+ case TUNGETSNDBUF:
+ sndbuf = tfile->socket.sk->sk_sndbuf;
+ if (copy_to_user(argp, &sndbuf, sizeof(sndbuf)))
+ ret = -EFAULT;
+ break;
+
+ case TUNSETSNDBUF:
+ if (copy_from_user(&sndbuf, argp, sizeof(sndbuf))) {
+ ret = -EFAULT;
+ break;
+ }
+
+ tun->sndbuf = sndbuf;
+ tun_set_sndbuf(tun);
+ break;
+
+ case TUNGETVNETHDRSZ:
+ vnet_hdr_sz = tun->vnet_hdr_sz;
+ if (copy_to_user(argp, &vnet_hdr_sz, sizeof(vnet_hdr_sz)))
+ ret = -EFAULT;
+ break;
+
+ case TUNSETVNETHDRSZ:
+ if (copy_from_user(&vnet_hdr_sz, argp, sizeof(vnet_hdr_sz))) {
+ ret = -EFAULT;
+ break;
+ }
+ if (vnet_hdr_sz < (int)sizeof(struct virtio_net_hdr)) {
+ ret = -EINVAL;
+ break;
+ }
+
+ tun->vnet_hdr_sz = vnet_hdr_sz;
+ break;
+
+ case TUNATTACHFILTER:
+ /* Can be set only for TAPs */
+ ret = -EINVAL;
+ if ((tun->flags & TUN_TYPE_MASK) != TUN_TAP_DEV)
+ break;
+ ret = -EFAULT;
+ if (copy_from_user(&tun->fprog, argp, sizeof(tun->fprog)))
+ break;
+
+ ret = tun_attach_filter(tun);
+ break;
+
+ case TUNDETACHFILTER:
+ /* Can be set only for TAPs */
+ ret = -EINVAL;
+ if ((tun->flags & TUN_TYPE_MASK) != TUN_TAP_DEV)
+ break;
+ ret = 0;
+ tun_detach_filter(tun, tun->numqueues);
+ break;
+
+ case TUNGETFILTER:
+ ret = -EINVAL;
+ if ((tun->flags & TUN_TYPE_MASK) != TUN_TAP_DEV)
+ break;
+ ret = -EFAULT;
+ if (copy_to_user(argp, &tun->fprog, sizeof(tun->fprog)))
+ break;
+ ret = 0;
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+unlock:
+ rtnl_unlock();
+ if (tun)
+ tun_put(tun);
+ return ret;
+}
+
+static long tun_chr_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return __tun_chr_ioctl(file, cmd, arg, sizeof (struct ifreq));
+}
+
+#ifdef CONFIG_COMPAT
+static long tun_chr_compat_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case TUNSETIFF:
+ case TUNGETIFF:
+ case TUNSETTXFILTER:
+ case TUNGETSNDBUF:
+ case TUNSETSNDBUF:
+ case SIOCGIFHWADDR:
+ case SIOCSIFHWADDR:
+ arg = (unsigned long)compat_ptr(arg);
+ break;
+ default:
+ arg = (compat_ulong_t)arg;
+ break;
+ }
+
+ /*
+ * compat_ifreq is shorter than ifreq, so we must not access beyond
+ * the end of that structure. All fields that are used in this
+ * driver are compatible though, we don't need to convert the
+ * contents.
+ */
+ return __tun_chr_ioctl(file, cmd, arg, sizeof(struct compat_ifreq));
+}
+#endif /* CONFIG_COMPAT */
+
+static int tun_chr_fasync(int fd, struct file *file, int on)
+{
+ struct tun_file *tfile = file->private_data;
+ int ret;
+
+ if ((ret = fasync_helper(fd, file, on, &tfile->fasync)) < 0)
+ goto out;
+
+ if (on) {
+ ret = __f_setown(file, task_pid(current), PIDTYPE_PID, 0);
+ if (ret)
+ goto out;
+ tfile->flags |= TUN_FASYNC;
+ } else
+ tfile->flags &= ~TUN_FASYNC;
+ ret = 0;
+out:
+ return ret;
+}
+
+static int tun_chr_open(struct inode *inode, struct file * file)
+{
+ struct tun_file *tfile;
+
+ DBG1(KERN_INFO, "tunX: tun_chr_open\n");
+
+ tfile = (struct tun_file *)sk_alloc(&init_net, AF_UNSPEC, GFP_KERNEL,
+ &tun_proto);
+ if (!tfile)
+ return -ENOMEM;
+ RCU_INIT_POINTER(tfile->tun, NULL);
+ tfile->net = get_net(current->nsproxy->net_ns);
+ tfile->flags = 0;
+ tfile->ifindex = 0;
+
+ init_waitqueue_head(&tfile->wq.wait);
+ RCU_INIT_POINTER(tfile->socket.wq, &tfile->wq);
+
+ tfile->socket.file = file;
+ tfile->socket.ops = &tun_socket_ops;
+
+ sock_init_data(&tfile->socket, &tfile->sk);
+ sk_change_net(&tfile->sk, tfile->net);
+
+ tfile->sk.sk_write_space = tun_sock_write_space;
+ tfile->sk.sk_sndbuf = INT_MAX;
+
+ file->private_data = tfile;
+ set_bit(SOCK_EXTERNALLY_ALLOCATED, &tfile->socket.flags);
+ INIT_LIST_HEAD(&tfile->next);
+
+ sock_set_flag(&tfile->sk, SOCK_ZEROCOPY);
+
+ return 0;
+}
+
+static int tun_chr_close(struct inode *inode, struct file *file)
+{
+ struct tun_file *tfile = file->private_data;
+ struct net *net = tfile->net;
+
+ tun_detach(tfile, true);
+ put_net(net);
+
+ return 0;
+}
+
+#ifdef CONFIG_PROC_FS
+static int tun_chr_show_fdinfo(struct seq_file *m, struct file *f)
+{
+ struct tun_struct *tun;
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+
+ rtnl_lock();
+ tun = tun_get(f);
+ if (tun)
+ tun_get_iff(current->nsproxy->net_ns, tun, &ifr);
+ rtnl_unlock();
+
+ if (tun)
+ tun_put(tun);
+
+ return seq_printf(m, "iff:\t%s\n", ifr.ifr_name);
+}
+#endif
+
+static const struct file_operations tun_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = do_sync_read,
+ .aio_read = tun_chr_aio_read,
+ .write = do_sync_write,
+ .aio_write = tun_chr_aio_write,
+ .poll = tun_chr_poll,
+ .unlocked_ioctl = tun_chr_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = tun_chr_compat_ioctl,
+#endif
+ .open = tun_chr_open,
+ .release = tun_chr_close,
+ .fasync = tun_chr_fasync,
+#ifdef CONFIG_PROC_FS
+ .show_fdinfo = tun_chr_show_fdinfo,
+#endif
+};
+
+static struct miscdevice tun_miscdev = {
+ .minor = (TUN_MINOR1),
+ .name = "bf_tun",
+ .nodename = "net/bf_tun",
+ .fops = &tun_fops,
+};
+
+/* ethtool interface */
+
+static int tun_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ cmd->supported = 0;
+ cmd->advertising = 0;
+ ethtool_cmd_speed_set(cmd, SPEED_10);
+ cmd->duplex = DUPLEX_FULL;
+ cmd->port = PORT_TP;
+ cmd->phy_address = 0;
+ cmd->transceiver = XCVR_INTERNAL;
+ cmd->autoneg = AUTONEG_DISABLE;
+ cmd->maxtxpkt = 0;
+ cmd->maxrxpkt = 0;
+ return 0;
+}
+
+static void tun_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct tun_struct *tun = netdev_priv(dev);
+
+ strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRV_VERSION, sizeof(info->version));
+
+ switch (tun->flags & TUN_TYPE_MASK) {
+ case TUN_TUN_DEV:
+ strlcpy(info->bus_info, "bf_tun", sizeof(info->bus_info));
+ break;
+ case TUN_TAP_DEV:
+ strlcpy(info->bus_info, "tap", sizeof(info->bus_info));
+ break;
+ }
+}
+
+static u32 tun_get_msglevel(struct net_device *dev)
+{
+#ifdef TUN_DEBUG
+ struct tun_struct *tun = netdev_priv(dev);
+ return tun->debug;
+#else
+ return -EOPNOTSUPP;
+#endif
+}
+
+static void tun_set_msglevel(struct net_device *dev, u32 value)
+{
+#ifdef TUN_DEBUG
+ struct tun_struct *tun = netdev_priv(dev);
+ tun->debug = value;
+#endif
+}
+
+static const struct ethtool_ops tun_ethtool_ops = {
+ .get_settings = tun_get_settings,
+ .get_drvinfo = tun_get_drvinfo,
+ .get_msglevel = tun_get_msglevel,
+ .set_msglevel = tun_set_msglevel,
+ .get_link = ethtool_op_get_link,
+ .get_ts_info = ethtool_op_get_ts_info,
+};
+
+
+static int __init tun_init(void)
+{
+ int ret = 0;
+
+ pr_info("%s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
+ pr_info("%s\n", DRV_COPYRIGHT);
+
+ ret = rtnl_link_register(&tun_link_ops);
+ if (ret) {
+ pr_err("Can't register link_ops\n");
+ goto err_linkops;
+ }
+
+ ret = misc_register(&tun_miscdev);
+ if (ret) {
+ pr_err("Can't register misc device %d\n", (TUN_MINOR1));
+ goto err_misc;
+ }
+ return 0;
+err_misc:
+ rtnl_link_unregister(&tun_link_ops);
+err_linkops:
+ return ret;
+}
+
+static void tun_cleanup(void)
+{
+ misc_deregister(&tun_miscdev);
+ rtnl_link_unregister(&tun_link_ops);
+}
+
+/* Get an underlying socket object from tun file. Returns error unless file is
+ * attached to a device. The returned object works like a packet socket, it
+ * can be used for sock_sendmsg/sock_recvmsg. The caller is responsible for
+ * holding a reference to the file for as long as the socket is in use. */
+struct socket *bf_tun_get_socket(struct file *file)
+{
+ struct tun_file *tfile;
+ if (file->f_op != &tun_fops)
+ return ERR_PTR(-EINVAL);
+ tfile = file->private_data;
+ if (!tfile)
+ return ERR_PTR(-EBADFD);
+ return &tfile->socket;
+}
+EXPORT_SYMBOL_GPL(bf_tun_get_socket);
+
+module_init(tun_init);
+module_exit(tun_cleanup);
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(TUN_MINOR1);
+MODULE_ALIAS("devname:net/bf_tun");
diff --git a/platform/barefoot/sonic-platform-modules-bfn/scripts/test b/platform/barefoot/sonic-platform-modules-bfn/scripts/test
new file mode 100755
index 0000000000..38327722c9
--- /dev/null
+++ b/platform/barefoot/sonic-platform-modules-bfn/scripts/test
@@ -0,0 +1 @@
+echo "test"
diff --git a/sonic-slave/Dockerfile b/sonic-slave/Dockerfile
index f194bf604c..d1a7a8c8e5 100644
--- a/sonic-slave/Dockerfile
+++ b/sonic-slave/Dockerfile
@@ -114,6 +114,9 @@ RUN apt-get update && apt-get install -y \
# For mellanox sai build
libtool-bin \
libxml2-dev \
+# For BFN sdk build
+ libusb-1.0-0-dev \
+ libcurl3-nss-dev \
# For build image
cpio \
squashfs-tools \
diff --git a/src/sonic-config-engine/tests/sample_output/interfaces b/src/sonic-config-engine/tests/sample_output/interfaces
index 89a23471a7..5fb4738064 100644
--- a/src/sonic-config-engine/tests/sample_output/interfaces
+++ b/src/sonic-config-engine/tests/sample_output/interfaces
@@ -15,6 +15,11 @@ iface lo inet6 static
address fc00:1::32
netmask 128
#
+# BMC interface
+auto usb0
+iface usb0 inet static
+ address 192.168.0.2
+ netmask 255.255.255.0
# The management network interface
auto eth0
iface eth0 inet static
diff --git a/src/sonic-sairedis b/src/sonic-sairedis
index f5d9c8364f..aa5bf640db 160000
--- a/src/sonic-sairedis
+++ b/src/sonic-sairedis
@@ -1 +1 @@
-Subproject commit f5d9c8364f5fbcc487a5f1a3e3e6203ab2293a83
+Subproject commit aa5bf640db7b7fca245c1669eeb02198a50cb5c1
diff --git a/src/sonic-swss b/src/sonic-swss
index e07d86b100..475e2da081 160000
--- a/src/sonic-swss
+++ b/src/sonic-swss
@@ -1 +1 @@
-Subproject commit e07d86b100ccefe8b51e2c41b543cc93f33a0f13
+Subproject commit 475e2da081e600fca839a140af620a68c8206096