diff --git a/device/wnc/x86_64-wnc_osw1800-r0/OSW1800-48x6q/port_config.ini b/device/wnc/x86_64-wnc_osw1800-r0/OSW1800-48x6q/port_config.ini new file mode 100644 index 0000000000..f47ac7345b --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/OSW1800-48x6q/port_config.ini @@ -0,0 +1,55 @@ +# name lanes alias speed autoneg fec +Ethernet0 0 Ethernet0 25000 1 1 +Ethernet4 1 Ethernet4 25000 1 1 +Ethernet8 2 Ethernet8 25000 1 1 +Ethernet12 3 Ethernet12 25000 1 1 +Ethernet16 4 Ethernet16 25000 1 1 +Ethernet20 5 Ethernet20 25000 1 1 +Ethernet24 6 Ethernet24 25000 1 1 +Ethernet28 7 Ethernet28 25000 1 1 +Ethernet32 8 Ethernet32 25000 1 1 +Ethernet36 9 Ethernet36 25000 1 1 +Ethernet40 10 Ethernet40 25000 1 1 +Ethernet44 11 Ethernet44 25000 1 1 +Ethernet48 12 Ethernet48 25000 1 1 +Ethernet52 13 Ethernet52 25000 1 1 +Ethernet56 14 Ethernet56 25000 1 1 +Ethernet60 15 Ethernet60 25000 1 1 +Ethernet64 16 Ethernet64 25000 1 1 +Ethernet68 17 Ethernet68 25000 1 1 +Ethernet72 18 Ethernet72 25000 1 1 +Ethernet76 19 Ethernet76 25000 1 1 +Ethernet80 20 Ethernet80 25000 1 1 +Ethernet84 21 Ethernet84 25000 1 1 +Ethernet88 22 Ethernet88 25000 1 1 +Ethernet92 23 Ethernet92 25000 1 1 +Ethernet96 24 Ethernet96 25000 1 1 +Ethernet100 25 Ethernet100 25000 1 1 +Ethernet104 26 Ethernet104 25000 1 1 +Ethernet108 27 Ethernet108 25000 1 1 +Ethernet112 28 Ethernet112 25000 1 1 +Ethernet116 29 Ethernet116 25000 1 1 +Ethernet120 30 Ethernet120 25000 1 1 +Ethernet124 31 Ethernet124 25000 1 1 +Ethernet128 32 Ethernet128 25000 1 1 +Ethernet132 33 Ethernet132 25000 1 1 +Ethernet136 34 Ethernet136 25000 1 1 +Ethernet140 35 Ethernet140 25000 1 1 +Ethernet144 36 Ethernet144 25000 1 1 +Ethernet148 37 Ethernet148 25000 1 1 +Ethernet152 38 Ethernet152 25000 1 1 +Ethernet156 39 Ethernet156 25000 1 1 +Ethernet160 40 Ethernet160 25000 1 1 +Ethernet164 41 Ethernet164 25000 1 1 +Ethernet168 42 Ethernet168 25000 1 1 +Ethernet172 43 Ethernet172 25000 1 1 +Ethernet176 44 Ethernet176 25000 1 1 +Ethernet180 45 Ethernet180 25000 1 1 +Ethernet184 46 Ethernet184 25000 1 1 +Ethernet188 47 Ethernet188 25000 1 1 +Ethernet192 48,49,50,51 Ethernet192 100000 1 1 +Ethernet196 52,53,54,55 Ethernet196 100000 1 1 +Ethernet200 56,57,58,59 Ethernet200 100000 1 1 +Ethernet204 60,61,62,63 Ethernet204 100000 1 1 +Ethernet208 64,65,66,67 Ethernet208 100000 1 1 +Ethernet212 68,69,70,71 Ethernet212 100000 1 1 diff --git a/device/wnc/x86_64-wnc_osw1800-r0/OSW1800-48x6q/switch-sai.conf b/device/wnc/x86_64-wnc_osw1800-r0/OSW1800-48x6q/switch-sai.conf new file mode 100644 index 0000000000..65a02a621f --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/OSW1800-48x6q/switch-sai.conf @@ -0,0 +1,33 @@ +{ + "chip_list": [ + { + "id": "asic-0", + "chip_family": "Tofino", + "instance": 0, + "pcie_sysfs_prefix": "/sys/devices/pci0000:00/0000:00:03.0/0000:05:00.0", + "pcie_domain": 0, + "pcie_bus": 5, + "pcie_fn": 0, + "pcie_dev": 0, + "pcie_int_mode": 1, + "sds_fw_path": "share/tofino_sds_fw/avago/firmware" + } + ], + "instance": 0, + "p4_program_list": [ + { + "id": "pgm-0", + "instance": 0, + "path": "switch", + "program-name": "switch", + "pd": "lib/tofinopd/switch/libpd.so", + "pd-thrift": "lib/tofinopd/switch/libpdthrift.so", + "table-config": "share/tofinopd/switch/context.json", + "tofino-bin": "share/tofinopd/switch/tofino.bin", + "switchapi": "lib/libswitchapi.so", + "switchsai": "lib/libswitchsai.so", + "agent0": "lib/platform/x86_64-wnc_osw1800-r0/libpltfm_mgr.so", + "switchapi_port_add": false + } + ] +} diff --git a/device/wnc/x86_64-wnc_osw1800-r0/fancontrol b/device/wnc/x86_64-wnc_osw1800-r0/fancontrol new file mode 100644 index 0000000000..d661bd11f1 --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/fancontrol @@ -0,0 +1,11 @@ +INTERVAL=10 +DEVPATH=hwmon1=devices/pci0000:00/0000:00:16.0/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.2/i2c-2/i2c-5/5-0033 hwmon2=devices/pci0000:00/0000:00:16.0/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.2/i2c-2/i2c-7/7-001e hwmon3=devices/pci0000:00/0000:00:16.0/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.2/i2c-2/i2c-7/7-004e hwmon4=devices/pci0000:00/0000:00:16.0/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.2/i2c-2/i2c-7/7-004f +DEVNAME=hwmon1=wnc_cpld3 hwmon2=tmp421 hwmon3=tmp75 hwmon4=tmp421 +FCTEMPS=hwmon1/pwm1=hwmon2/temp1_input hwmon1/pwm2=hwmon2/temp2_input hwmon1/pwm3=hwmon3/temp1_input hwmon1/pwm4=hwmon4/temp1_input hwmon1/pwm5=hwmon4/temp2_input +FCFANS=hwmon1/pwm1=hwmon1/fan1_input hwmon1/pwm2=hwmon1/fan2_input hwmon1/pwm3=hwmon1/fan3_input hwmon1/pwm4=hwmon1/fan4_input hwmon1/pwm5=hwmon1/fan5_input +MINTEMP=hwmon1/pwm1=20 hwmon1/pwm2=20 hwmon1/pwm3=20 hwmon1/pwm4=20 hwmon1/pwm5=20 +MAXTEMP=hwmon1/pwm1=50 hwmon1/pwm2=50 hwmon1/pwm3=50 hwmon1/pwm4=50 hwmon1/pwm5=50 +MINSTART=hwmon1/pwm1=32 hwmon1/pwm2=32 hwmon1/pwm3=32 hwmon1/pwm4=32 hwmon1/pwm5=32 +MINSTOP=hwmon1/pwm1=22 hwmon1/pwm2=22 hwmon1/pwm3=22 hwmon1/pwm4=22 hwmon1/pwm5=22 +MINPWM=hwmon1/pwm1=10 hwmon1/pwm2=10 hwmon1/pwm3=10 hwmon1/pwm4=10 hwmon1/pwm5=10 +MAXPWM=hwmon1/pwm1=100 hwmon1/pwm2=100 hwmon1/pwm3=100 hwmon1/pwm4=100 hwmon1/pwm5=100 diff --git a/device/wnc/x86_64-wnc_osw1800-r0/installer.conf b/device/wnc/x86_64-wnc_osw1800-r0/installer.conf new file mode 100644 index 0000000000..dfa6df2268 --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/installer.conf @@ -0,0 +1,3 @@ +CONSOLE_PORT=0x2f8 +CONSOLE_DEV=1 +CONSOLE_SPEED=57600 diff --git a/device/wnc/x86_64-wnc_osw1800-r0/minigraph.xml b/device/wnc/x86_64-wnc_osw1800-r0/minigraph.xml new file mode 100644 index 0000000000..fc4dcee305 --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/minigraph.xml @@ -0,0 +1,1761 @@ + + + + + + ARISTA01T0 + 10.0.0.55 + switch2 + 10.0.0.54 + 1 + 180 + 60 + + + switch2 + 10.0.0.0 + ARISTA01T2 + 10.0.0.1 + 1 + 180 + 60 + + + ARISTA02T0 + 10.0.0.57 + switch2 + 10.0.0.56 + 1 + 180 + 60 + + + switch2 + 10.0.0.2 + ARISTA02T2 + 10.0.0.3 + 1 + 180 + 60 + + + ARISTA03T0 + 10.0.0.59 + switch2 + 10.0.0.58 + 1 + 180 + 60 + + + switch2 + 10.0.0.4 + ARISTA03T2 + 10.0.0.5 + 1 + 180 + 60 + + + ARISTA04T0 + 10.0.0.61 + switch2 + 10.0.0.60 + 1 + 180 + 60 + + + switch2 + 10.0.0.6 + ARISTA04T2 + 10.0.0.7 + 1 + 180 + 60 + + + ARISTA05T0 + 10.0.0.63 + switch2 + 10.0.0.62 + 1 + 180 + 60 + + + switch2 + 10.0.0.8 + ARISTA05T2 + 10.0.0.9 + 1 + 180 + 60 + + + ARISTA06T0 + 10.0.0.65 + switch2 + 10.0.0.64 + 1 + 180 + 60 + + + switch2 + 10.0.0.10 + ARISTA06T2 + 10.0.0.11 + 1 + 180 + 60 + + + ARISTA07T0 + 10.0.0.67 + switch2 + 10.0.0.66 + 1 + 180 + 60 + + + switch2 + 10.0.0.12 + ARISTA07T2 + 10.0.0.13 + 1 + 180 + 60 + + + ARISTA08T0 + 10.0.0.69 + switch2 + 10.0.0.68 + 1 + 180 + 60 + + + switch2 + 10.0.0.14 + ARISTA08T2 + 10.0.0.15 + 1 + 180 + 60 + + + ARISTA09T0 + 10.0.0.71 + switch2 + 10.0.0.70 + 1 + 180 + 60 + + + switch2 + 10.0.0.16 + ARISTA09T2 + 10.0.0.17 + 1 + 180 + 60 + + + ARISTA10T0 + 10.0.0.73 + switch2 + 10.0.0.72 + 1 + 180 + 60 + + + switch2 + 10.0.0.18 + ARISTA10T2 + 10.0.0.19 + 1 + 180 + 60 + + + ARISTA11T0 + 10.0.0.75 + switch2 + 10.0.0.74 + 1 + 180 + 60 + + + switch2 + 10.0.0.20 + ARISTA11T2 + 10.0.0.21 + 1 + 180 + 60 + + + ARISTA12T0 + 10.0.0.77 + switch2 + 10.0.0.76 + 1 + 180 + 60 + + + switch2 + 10.0.0.22 + ARISTA12T2 + 10.0.0.23 + 1 + 180 + 60 + + + ARISTA13T0 + 10.0.0.79 + switch2 + 10.0.0.78 + 1 + 180 + 60 + + + switch2 + 10.0.0.24 + ARISTA13T2 + 10.0.0.25 + 1 + 180 + 60 + + + ARISTA14T0 + 10.0.0.81 + switch2 + 10.0.0.80 + 1 + 180 + 60 + + + switch2 + 10.0.0.26 + ARISTA14T2 + 10.0.0.27 + 1 + 180 + 60 + + + ARISTA15T0 + 10.0.0.83 + switch2 + 10.0.0.82 + 1 + 180 + 60 + + + switch2 + 10.0.0.28 + ARISTA15T2 + 10.0.0.29 + 1 + 180 + 60 + + + ARISTA16T0 + 10.0.0.85 + switch2 + 10.0.0.84 + 1 + 180 + 60 + + + switch2 + 10.0.0.30 + ARISTA16T2 + 10.0.0.31 + 1 + 180 + 60 + + + ARISTA17T0 + 10.0.0.87 + switch2 + 10.0.0.86 + 1 + 180 + 60 + + + switch2 + 10.0.0.32 + ARISTA17T2 + 10.0.0.33 + 1 + 180 + 60 + + + ARISTA18T0 + 10.0.0.89 + switch2 + 10.0.0.88 + 1 + 180 + 60 + + + switch2 + 10.0.0.34 + ARISTA18T2 + 10.0.0.35 + 1 + 180 + 60 + + + ARISTA19T0 + 10.0.0.91 + switch2 + 10.0.0.90 + 1 + 180 + 60 + + + switch2 + 10.0.0.36 + ARISTA19T2 + 10.0.0.37 + 1 + 180 + 60 + + + ARISTA20T0 + 10.0.0.93 + switch2 + 10.0.0.92 + 1 + 180 + 60 + + + switch2 + 10.0.0.38 + ARISTA20T2 + 10.0.0.39 + 1 + 180 + 60 + + + ARISTA21T0 + 10.0.0.95 + switch2 + 10.0.0.94 + 1 + 180 + 60 + + + switch2 + 10.0.0.40 + ARISTA21T2 + 10.0.0.41 + 1 + 180 + 60 + + + ARISTA22T0 + 10.0.0.97 + switch2 + 10.0.0.96 + 1 + 180 + 60 + + + switch2 + 10.0.0.42 + ARISTA22T2 + 10.0.0.43 + 1 + 180 + 60 + + + ARISTA23T0 + 10.0.0.99 + switch2 + 10.0.0.98 + 1 + 180 + 60 + + + switch2 + 10.0.0.44 + ARISTA23T2 + 10.0.0.45 + 1 + 180 + 60 + + + ARISTA24T0 + 10.0.0.101 + switch2 + 10.0.0.100 + 1 + 180 + 60 + + + switch2 + 10.0.0.46 + ARISTA24T2 + 10.0.0.47 + 1 + 180 + 60 + + + ARISTA25T0 + 10.0.0.103 + switch2 + 10.0.0.102 + 1 + 180 + 60 + + + switch2 + 10.0.0.48 + ARISTA25T2 + 10.0.0.49 + 1 + 180 + 60 + + + ARISTA26T0 + 10.0.0.105 + switch2 + 10.0.0.104 + 1 + 180 + 60 + + + switch2 + 10.0.0.50 + ARISTA26T2 + 10.0.0.51 + 1 + 180 + 60 + + + ARISTA27T0 + 10.0.0.107 + switch2 + 10.0.0.106 + 1 + 180 + 60 + + + switch2 + 10.0.0.52 + ARISTA27T2 + 10.0.0.53 + 1 + 180 + 60 + + + + + 65100 + switch2 + + +
10.0.0.55
+ + + + +
10.0.0.1
+ + + + +
10.0.0.57
+ + + + +
10.0.0.3
+ + + + +
10.0.0.59
+ + + + +
10.0.0.5
+ + + + +
10.0.0.61
+ + + + +
10.0.0.7
+ + + + +
10.0.0.63
+ + + + +
10.0.0.9
+ + + + +
10.0.0.65
+ + + + +
10.0.0.11
+ + + + +
10.0.0.67
+ + + + +
10.0.0.13
+ + + + +
10.0.0.69
+ + + + +
10.0.0.15
+ + + + +
10.0.0.71
+ + + + +
10.0.0.17
+ + + + +
10.0.0.73
+ + + + +
10.0.0.19
+ + + + +
10.0.0.75
+ + + + +
10.0.0.21
+ + + + +
10.0.0.77
+ + + + +
10.0.0.23
+ + + + +
10.0.0.79
+ + + + +
10.0.0.25
+ + + + +
10.0.0.81
+ + + + +
10.0.0.27
+ + + + +
10.0.0.83
+ + + + +
10.0.0.29
+ + + + +
10.0.0.85
+ + + + +
10.0.0.31
+ + + + +
10.0.0.87
+ + + + +
10.0.0.33
+ + + + +
10.0.0.89
+ + + + +
10.0.0.35
+ + + + +
10.0.0.91
+ + + + +
10.0.0.37
+ + + + +
10.0.0.93
+ + + + +
10.0.0.39
+ + + + +
10.0.0.95
+ + + + +
10.0.0.41
+ + + + +
10.0.0.97
+ + + + +
10.0.0.43
+ + + + +
10.0.0.99
+ + + + +
10.0.0.45
+ + + + +
10.0.0.101
+ + + + +
10.0.0.47
+ + + + +
10.0.0.103
+ + + + +
10.0.0.49
+ + + + +
10.0.0.105
+ + + + +
10.0.0.51
+ + + + +
10.0.0.107
+ + + + +
10.0.0.53
+ + + + + + + + 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 + + + + 64016 + ARISTA17T0 + + + + 65200 + ARISTA17T2 + + + + 64016 + ARISTA18T0 + + + + 65200 + ARISTA18T2 + + + + 64016 + ARISTA19T0 + + + + 65200 + ARISTA19T2 + + + + 64016 + ARISTA20T0 + + + + 65200 + ARISTA20T2 + + + + 64016 + ARISTA21T0 + + + + 65200 + ARISTA21T2 + + + + 64016 + ARISTA22T0 + + + + 65200 + ARISTA22T2 + + + + 64016 + ARISTA23T0 + + + + 65200 + ARISTA23T2 + + + + 64016 + ARISTA24T0 + + + + 65200 + ARISTA24T2 + + + + 64016 + ARISTA25T0 + + + + 65200 + ARISTA25T2 + + + + 64016 + ARISTA26T0 + + + + 65200 + ARISTA26T2 + + + + 64016 + ARISTA27T0 + + + + 65200 + ARISTA27T2 + + + + + + + + + + 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 + + + + Ethernet128 + 10.0.0.64/31 + + + + Ethernet132 + 10.0.0.66/31 + + + + Ethernet136 + 10.0.0.68/31 + + + + Ethernet140 + 10.0.0.70/31 + + + + Ethernet144 + 10.0.0.72/31 + + + + Ethernet148 + 10.0.0.74/31 + + + + Ethernet152 + 10.0.0.76/31 + + + + Ethernet156 + 10.0.0.78/31 + + + + Ethernet160 + 10.0.0.80/31 + + + + Ethernet164 + 10.0.0.82/31 + + + + Ethernet168 + 10.0.0.84/31 + + + + Ethernet172 + 10.0.0.86/31 + + + + Ethernet176 + 10.0.0.88/31 + + + + Ethernet180 + 10.0.0.90/31 + + + + Ethernet184 + 10.0.0.92/31 + + + + Ethernet188 + 10.0.0.94/31 + + + + Ethernet192 + 10.0.0.96/31 + + + + Ethernet196 + 10.0.0.98/31 + + + + Ethernet200 + 10.0.0.100/31 + + + + Ethernet204 + 10.0.0.102/31 + + + + Ethernet208 + 10.0.0.104/31 + + + + Ethernet212 + 10.0.0.106/31 + + + + + + + + + + + + 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 + ARISTA17T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet68 + ARISTA18T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet72 + ARISTA19T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet76 + ARISTA20T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet80 + ARISTA21T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet84 + ARISTA22T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet88 + ARISTA23T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet92 + ARISTA24T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet96 + ARISTA25T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet100 + ARISTA26T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet104 + ARISTA27T2 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet108 + ARISTA01T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet112 + ARISTA02T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet116 + ARISTA03T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet120 + ARISTA04T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet124 + ARISTA05T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet128 + ARISTA06T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet132 + ARISTA07T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet136 + ARISTA08T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet140 + ARISTA09T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet144 + ARISTA10T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet148 + ARISTA11T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet152 + ARISTA12T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet156 + ARISTA13T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet160 + ARISTA14T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet164 + ARISTA15T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet168 + ARISTA16T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet172 + ARISTA17T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet176 + ARISTA18T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet180 + ARISTA19T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet184 + ARISTA20T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet188 + ARISTA21T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet192 + ARISTA22T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet196 + ARISTA23T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet200 + ARISTA24T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet204 + ARISTA25T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet208 + ARISTA26T0 + Ethernet1 + + + DeviceInterfaceLink + switch2 + Ethernet212 + ARISTA27T0 + Ethernet1 + + + + + switch2 + OSW1800-48x6q + + + + + + + switch2 + + + DhcpResources + + 192.168.1.111 + + + NtpResources + + 0.debian.pool.ntp.org;1.debian.pool.ntp.org;2.debian.pool.ntp.org;3.debian.pool.ntp.org + + + SyslogResources + + 192.0.0.1 + + + ErspanDestinationIpv4 + + 2.2.2.2 + + + + + + + switch2 + OSW1800-48x6q + diff --git a/device/wnc/x86_64-wnc_osw1800-r0/plugins/eeprom.py b/device/wnc/x86_64-wnc_osw1800-r0/plugins/eeprom.py new file mode 100644 index 0000000000..a073374794 --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/plugins/eeprom.py @@ -0,0 +1,22 @@ +#!/usr/bin/env python + +try: + import exceptions + import binascii + import time + import optparse + import warnings + import os + import sys + from sonic_eeprom import eeprom_base + from sonic_eeprom import eeprom_tlvinfo +except ImportError, e: + raise ImportError (str(e) + "- required module not found") + + +class board(eeprom_tlvinfo.TlvInfoDecoder): + + def __init__(self, name, path, cpld_root, ro): + self.eeprom_path = "/sys/class/i2c-adapter/i2c-8/8-0052/eeprom" + super(board, self).__init__(self.eeprom_path, 0, '', True) + diff --git a/device/wnc/x86_64-wnc_osw1800-r0/plugins/psuutil.py b/device/wnc/x86_64-wnc_osw1800-r0/plugins/psuutil.py new file mode 100644 index 0000000000..e62159c8a8 --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/plugins/psuutil.py @@ -0,0 +1,64 @@ +# +# psuutil.py +# Platform-specific PSU status interface for SONiC +# + + +import os.path + +try: + from sonic_psu.psu_base import PsuBase +except ImportError as e: + raise ImportError(str(e) + "- required module not found") + + +class PsuUtil(PsuBase): + """Platform-specific PSUutil class""" + + def __init__(self): + PsuBase.__init__(self) + + def get_num_psus(self): + return 2 + + def get_psu_status(self, index): + if index == 1: + psu_path = "/sys/bus/i2c/devices/6-0050/eeprom" + elif index == 2: + psu_path = "/sys/bus/i2c/devices/6-0051/eeprom" + else: + return False + + try: + data = open(psu_path, "rb") + except IOError: + return False + + result = int(data.read(1).encode("hex"), 16) + data.close() + + if result != 255 and result != 0: + return True + else: + return False + + def get_psu_presence(self, index): + if index == 1: + psu_path = "/sys/bus/i2c/devices/6-0050/eeprom" + elif index == 2: + psu_path = "/sys/bus/i2c/devices/6-0051/eeprom" + else: + return False + + try: + data = open(psu_path, "rb") + except IOError: + return False + + result = int(data.read(1).encode("hex"), 16) + data.close() + + if result != 255 and result != 0: + return True + else: + return False diff --git a/device/wnc/x86_64-wnc_osw1800-r0/plugins/sfputil.py b/device/wnc/x86_64-wnc_osw1800-r0/plugins/sfputil.py new file mode 100644 index 0000000000..1c1e86bc5d --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/plugins/sfputil.py @@ -0,0 +1,205 @@ +#! /usr/bin/python +# +# Platform-specific SFP transceiver interface for SONiC +# + +try: + import time + from sonic_sfp.sfputilbase import SfpUtilBase + import sys + sys.path.append('/usr/lib/python2.7/dist-packages/sonic_sfp/') + from sff8472 import sff8472InterfaceId + from sff8472 import sff8472Dom + from sff8436 import sff8436InterfaceId + from sff8436 import sff8436Dom +except ImportError, e: + raise ImportError("%s - required module not found" % str(e)) + + +class SfpUtil(SfpUtilBase): + """Platform-specific SfpUtil class""" + + PORT_START = 0 + PORT_END = 53 + PORTS_IN_BLOCK = 54 + + EEPROM_OFFSET = 11 + + _port_to_eeprom_mapping = {} + + @property + def port_start(self): + return self.PORT_START + + @property + def port_end(self): + return self.PORT_END + + @property + def qsfp_ports(self): + return range(self.PORT_START + 48, self.PORTS_IN_BLOCK) + + @property + def port_to_eeprom_mapping(self): + return self._port_to_eeprom_mapping + + def __init__(self): + eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom" + + for x in range(0, self.port_end + 1): + self._port_to_eeprom_mapping[x] = eeprom_path.format(x + self.EEPROM_OFFSET) + + SfpUtilBase.__init__(self) + + def get_presence(self, port_num): + bit_mask = port_num % 8 + + if port_num <= 7: + presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs1" + elif 8 <= port_num and port_num <= 15: + presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs2" + elif 16 <= port_num and port_num <= 23: + presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs3" + elif 24 <= port_num and port_num <= 27: + presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs4" + elif 28 <= port_num and port_num <= 31: + presence_path = "/sys/bus/i2c/devices/4-0032/sfp_mod_abs1" + bit_mask = bit_mask - 4 + elif 32 <= port_num and port_num <= 39: + presence_path = "/sys/bus/i2c/devices/4-0032/sfp_mod_abs2" + elif 40 <= port_num and port_num <= 47: + presence_path = "/sys/bus/i2c/devices/4-0032/sfp_mod_abs3" + elif 48 <= port_num and port_num <= 71: + presence_path = "/sys/bus/i2c/devices/4-0032/qsfp_modprs" + else: + return False + + try: + reg_file = open(presence_path, "rb") + except IOError as e: + print "Error: unable to open file: %s" % str(e) + return False + + content = reg_file.readline().rstrip() + reg_value = int(content, 16) + reg_file.close() + + if reg_value & (1 << bit_mask) == 0: + return True + else: + return False + + def get_low_power_mode(self, port_num): + if port_num in self.qsfp_ports: + bit_mask = port_num % 8 + else: + return False + + try: + reg_file = open("/sys/bus/i2c/devices/4-0032/qsfp_lpmode") + except IOError as e: + print "Error: unable to open file: %s" % str(e) + + content = reg_file.readline().rstrip() + reg_value = int(content, 16) + reg_file.close() + + if reg_value & (1 << bit_mask) == 0: + return False + + return True + + def set_low_power_mode(self, port_num, lpmode): + if port_num in self.qsfp_ports: + bit_mask = port_num % 8 + else: + return False + + try: + reg_file = open("/sys/bus/i2c/devices/4-0032/qsfp_lpmode", "r+") + except IOError as e: + print "Error: unable to open file: %s" % str(e) + return False + + content = reg_file.readline().rstrip() + reg_value = int(content, 16) + + if lpmode is True: + reg_value = reg_value | (1 << bit_mask) + else: + reg_value = reg_value & ~(1 << bit_mask) + + reg_file.seek(0) + reg_file.write(str(reg_value)) + reg_file.close() + + return True + + def reset(self, port_num): + if port_num in self.qsfp_ports: + bit_mask = (port_num % 8) + 2 + else: + return False + + try: + reg_file = open("/sys/bus/i2c/devices/4-0032/reset_control", "r+") + except IOError as e: + print "Error: unable to open file: %s" % str(e) + return False + + content = reg_file.readline().rstrip() + reg_value = int(content, 16) + reg_value = reg_value & ~(1 << bit_mask) + + reg_file.seek(0) + reg_file.write(str(reg_value)) + reg_file.close() + + time.sleep(1) + + try: + reg_file = open("/sys/bus/i2c/devices/4-0032/reset_control", "w") + except IOError as e: + print "Error: unable to open file: %s" % str(e) + return False + + reg_value = reg_value | (1 << bit_mask) + reg_file.seek(0) + reg_file.write(str(reg_value)) + reg_file.close() + + return True + + def get_eeprom_dict(self, port_num): + if not self.get_presence(port_num): + return None + + sfp_data = {} + + eeprom_ifraw = self.get_eeprom_raw(port_num) + eeprom_domraw = self.get_eeprom_dom_raw(port_num) + + if eeprom_ifraw is None: + return None + + if port_num in self.qsfp_ports: + sfpi_obj = sff8436InterfaceId(eeprom_ifraw) + if sfpi_obj is not None: + sfp_data['interface'] = sfpi_obj.get_data_pretty() + + sfpd_obj = sff8436Dom(eeprom_ifraw) + if sfpd_obj is not None: + sfp_data['dom'] = sfpd_obj.get_data_pretty() + return sfp_data + + sfpi_obj = sff8472InterfaceId(eeprom_ifraw) + if sfpi_obj is not None: + sfp_data['interface'] = sfpi_obj.get_data_pretty() + cal_type = sfpi_obj.get_calibration_type() + + if eeprom_domraw is not None: + sfpd_obj = sff8472Dom(eeprom_domraw, cal_type) + if sfpd_obj is not None: + sfp_data['dom'] = sfpd_obj.get_data_pretty() + + return sfp_data diff --git a/device/wnc/x86_64-wnc_osw1800-r0/sensors.conf b/device/wnc/x86_64-wnc_osw1800-r0/sensors.conf new file mode 100644 index 0000000000..d91945ff72 --- /dev/null +++ b/device/wnc/x86_64-wnc_osw1800-r0/sensors.conf @@ -0,0 +1,33 @@ +# libsensors configuration filei +# -------------------------------------------------- +# + +bus "i2c-7" "i2c-2-mux" +chip "tmp421-i2c-7-1E" + label temp1 "ts1" + set temp1_max 50 + set temp1_max_hyst 25 + label temp2 "ts4" + set temp2_max 50 + set temp2_max_hyst 25 + +chip "tmp75-i2c-7-4E" + label temp1 "ts3" + set temp1_max 50 + set temp1_max_hyst 25 + +chip "tmp421-i2c-7-4F" + label temp1 "ts2" + set temp1_max 50 + set temp1_max_hyst 25 + label temp2 "ts5" + set temp2_max 50 + set temp2_max_hyst 25 + +bus "i2c-5" "i2c-2-mux" +chip "wnc_cpld3-i2c-5-33" + label fan1 "fan1" + label fan2 "fan2" + label fan3 "fan3" + label fan4 "fan4" + label fan5 "fan5" diff --git a/platform/barefoot/bfn-platform.mk b/platform/barefoot/bfn-platform.mk index b50a7d51c0..b5c67a3fd3 100644 --- a/platform/barefoot/bfn-platform.mk +++ b/platform/barefoot/bfn-platform.mk @@ -1,5 +1,5 @@ BFN_PLATFORM = bfnplatform_1.0.0_amd64.deb -$(BFN_PLATFORM)_URL = "https://github.com/barefootnetworks/sonic-release-pkgs/raw/rel_7_0/bfnplatform_1.0.0_amd64.deb" +$(BFN_PLATFORM)_URL = "https://github.com/YaoTien/download/blob/master/sonic/sde/7_0_0_18/bfnplatform_1.0.0_amd64.deb" SONIC_ONLINE_DEBS += $(BFN_PLATFORM) # $(BFN_SAI_DEV) $(BFN_SAI_DEV)_DEPENDS += $(BFN_PLATFORM) diff --git a/platform/barefoot/bfn-sai.mk b/platform/barefoot/bfn-sai.mk index a23efaa44a..28abac7e90 100644 --- a/platform/barefoot/bfn-sai.mk +++ b/platform/barefoot/bfn-sai.mk @@ -1,5 +1,5 @@ BFN_SAI = bfnsdk_1.0.0_amd64.deb -$(BFN_SAI)_URL = "https://github.com/barefootnetworks/sonic-release-pkgs/raw/rel_7_0/bfnsdk_1.0.0_amd64.deb" +$(BFN_SAI)_URL = "https://github.com/YaoTien/download/blob/master/sonic/sde/7_0_0_18/bfnsdk_1.0.0_amd64.deb" # $(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) diff --git a/platform/barefoot/one-image.mk b/platform/barefoot/one-image.mk index c7072d9b44..b6dc08aa96 100644 --- a/platform/barefoot/one-image.mk +++ b/platform/barefoot/one-image.mk @@ -3,7 +3,8 @@ 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)_INSTALLS += $(BFN_PLATFORM_MODULE) +#$(SONIC_ONE_IMAGE)_INSTALLS += $(BFN_MONTARA_PLATFORM_MODULE) +$(SONIC_ONE_IMAGE)_INSTALLS += $(WNC_OSW1800_PLATFORM_MODULE) $(SONIC_ONE_IMAGE)_DOCKERS += $(SONIC_INSTALL_DOCKER_IMAGES) SONIC_INSTALLERS += $(SONIC_ONE_IMAGE) diff --git a/platform/barefoot/platform-modules-wnc-osw1800.mk b/platform/barefoot/platform-modules-wnc-osw1800.mk new file mode 100644 index 0000000000..a85ba6b193 --- /dev/null +++ b/platform/barefoot/platform-modules-wnc-osw1800.mk @@ -0,0 +1,11 @@ +# BFN Platform modules + +WNC_OSW1800_PLATFORM_MODULE_VERSION = 1.0 + +export WNC_OSW1800_PLATFORM_MODULE_VERSION + +WNC_OSW1800_PLATFORM_MODULE = platform-modules-wnc-osw1800_$(WNC_OSW1800_PLATFORM_MODULE_VERSION)_amd64.deb +$(WNC_OSW1800_PLATFORM_MODULE)_SRC_PATH = $(PLATFORM_PATH)/sonic-platform-modules-wnc-osw1800 +$(WNC_OSW1800_PLATFORM_MODULE)_DEPENDS += $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON) +$(WNC_OSW1800_PLATFORM_MODULE)_PLATFORM = x86_64-wnc_osw1800-r0 +SONIC_DPKG_DEBS += $(WNC_OSW1800_PLATFORM_MODULE) diff --git a/platform/barefoot/rules.mk b/platform/barefoot/rules.mk index ab9a1679af..c339b81699 100644 --- a/platform/barefoot/rules.mk +++ b/platform/barefoot/rules.mk @@ -1,5 +1,6 @@ include $(PLATFORM_PATH)/platform-modules-bfn.mk include $(PLATFORM_PATH)/platform-modules-bfn-montara.mk +include $(PLATFORM_PATH)/platform-modules-wnc-osw1800.mk include $(PLATFORM_PATH)/bfn-sai.mk include $(PLATFORM_PATH)/docker-syncd-bfn.mk include $(PLATFORM_PATH)/docker-syncd-bfn-rpc.mk diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/LICENSE b/platform/barefoot/sonic-platform-modules-wnc-osw1800/LICENSE new file mode 100644 index 0000000000..676cdeec72 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/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-wnc-osw1800/MAINTAINERS b/platform/barefoot/sonic-platform-modules-wnc-osw1800/MAINTAINERS new file mode 100644 index 0000000000..a578b60e24 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/MAINTAINERS @@ -0,0 +1,7 @@ +# This file describes the maintainers for sonic-platform-modules-wnc-osw1800 +# See the SONiC project governance document for more information + +Name = "WNC" +Email = "wnc@wnc.com.tw" +Github = barefootnetworks +Mailinglist = wnc@wnc.com.tw diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/README.md b/platform/barefoot/sonic-platform-modules-wnc-osw1800/README.md new file mode 100644 index 0000000000..707c1068d6 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/README.md @@ -0,0 +1,2 @@ +# sonic-platform-modules-wnc-osw1800 +Device drivers for support of BFN platform for the SONiC project diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/changelog b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/changelog new file mode 100644 index 0000000000..466378b892 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/changelog @@ -0,0 +1,5 @@ +platform-modules-wnc-osw1800 (1.0) unstable; urgency=low + + * Initial release + + -- WNC Mon, 11 Nov 2015 11:11:11 -0800 diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/compat b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/compat new file mode 100644 index 0000000000..45a4fb75db --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/compat @@ -0,0 +1 @@ +8 diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/control b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/control new file mode 100644 index 0000000000..0659d35786 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/control @@ -0,0 +1,12 @@ +Source: platform-modules-wnc-osw1800 +Section: main +Priority: extra +Maintainer: WNC +Build-Depends: debhelper (>= 8.0.0), bzip2 +Standards-Version: 3.9.3 + +Package: platform-modules-wnc-osw1800 +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-wnc-osw1800/debian/copyright b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/copyright new file mode 100644 index 0000000000..ade42b7aa7 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/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-wnc-osw1800/debian/files b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/files new file mode 100644 index 0000000000..6ec8776133 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/files @@ -0,0 +1 @@ +platform-modules-wnc-osw1800_1.0_amd64.deb main extra diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/rules b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/rules new file mode 100755 index 0000000000..644ab1ade4 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/debian/rules @@ -0,0 +1,38 @@ +#!/usr/bin/make -f + +export INSTALL_MOD_DIR:=extra + +PACKAGE_NAME := platform-modules-wnc-osw1800 +KVERSION ?= $(shell uname -r) +KERNEL_SRC := /lib/modules/$(KVERSION) +MODULE_SRC := $(shell pwd)/modules +SCRIPT_SRC := $(shell pwd)/scripts +SERVICE_SRC := $(shell pwd)/service + +%: + 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 + dh_installdirs -p$(PACKAGE_NAME) /etc/systemd/system + cp -r $(SERVICE_SRC)/* debian/$(PACKAGE_NAME)/etc/systemd/system + dh_installdirs -p$(PACKAGE_NAME) /etc/systemd/system/multi-user.target.wants + ln -s ../device_node.service debian/$(PACKAGE_NAME)/etc/systemd/system/multi-user.target.wants/device_node.service + ln -s ../driver_load.service debian/$(PACKAGE_NAME)/etc/systemd/system/multi-user.target.wants/driver_load.service + +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-wnc-osw1800/modules/Makefile b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/Makefile new file mode 100644 index 0000000000..29b904dd32 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/Makefile @@ -0,0 +1,6 @@ +obj-m := bf_kdrv.o +obj-m += bf_tun.o +obj-m += i2c-mcp2221.o +obj-m += wnc_cpld.o +obj-m += wnc_cpld3.o +obj-m += wnc_eeprom.o diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/bf_kdrv.c b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/bf_kdrv.c new file mode 100644 index 0000000000..5f084f6a04 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/bf_kdrv.c @@ -0,0 +1,1249 @@ +/******************************************************************************* + * 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 +#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_A0 0x01 +#define TOFINO_DEV_ID_B0 0x10 + +#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; +}; + +struct bf_listener { + struct bf_pci_dev *bfdev; + s32 event_count[BF_MSIX_ENTRY_CNT]; + int minor; + struct bf_listener *next; +}; + +/* device information */ +struct bf_dev_info { + struct module *owner; + struct device *dev; + int minor; + atomic_t event[BF_MSIX_ENTRY_CNT]; + 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; + enum bf_intr_mode mode; + u8 instance; + char name[16]; + struct bf_int_vector bf_int_vec[BF_MSIX_ENTRY_CNT]; + struct bf_listener *listener_head; /* head of a singly linked list of + listeners */ +}; + +/* Keep any global information here that must survive even after the + * bf_pci_dev is free-ed up. + */ +struct bf_global { + struct bf_pci_dev *bfdev ; + struct cdev *bf_cdev; + struct fasync_struct *async_queue; +}; + +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; +/* dev->minor should index into this array */ +static struct bf_global bf_global[BF_MAX_DEVICE_CNT]; + +static void bf_add_listener(struct bf_pci_dev *bfdev, + struct bf_listener *listener) +{ + struct bf_listener **cur_listener = &bfdev->listener_head; + + if (!listener) { + return; + } + spin_lock(&bf_nonisr_lock); + + while (*cur_listener) { + cur_listener = &((*cur_listener)->next); + } + *cur_listener = listener; + listener->next = NULL; + + spin_unlock(&bf_nonisr_lock); +} + +static void bf_remove_listener(struct bf_pci_dev *bfdev, + struct bf_listener *listener) +{ + struct bf_listener **cur_listener = &bfdev->listener_head; + + /* in case of certain error conditions, this function might be called after bf_pci_remove() + */ + if (!bfdev || !listener) { + return; + } + spin_lock(&bf_nonisr_lock); + + if (*cur_listener == listener) { + *cur_listener = listener->next; + } else { + while (*cur_listener) { + if ((*cur_listener)->next == listener) { + (*cur_listener)->next = listener->next; + break; + } + cur_listener = &((*cur_listener)->next); + } + listener->next = NULL; + } + + spin_unlock(&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; +} + +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) { + return -ENODEV; + } + 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 (!bfdev) { + return -ENODEV; + } + 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) +{ + int minor; + + if (!filep->private_data) { + return (-EINVAL); + } + minor = ((struct bf_listener *)filep->private_data)->minor; + if (minor >= BF_MAX_DEVICE_CNT) { + return (-EINVAL); + } + if (mode == 0 && &bf_global[minor].async_queue == NULL) { + return 0; /* nothing to do */ + } + return (fasync_helper(fd, filep, mode, &bf_global[minor].async_queue)); +} + +static int bf_open(struct inode *inode, struct file *filep) +{ + struct bf_pci_dev *bfdev; + struct bf_listener *listener; + int i; + + bfdev = bf_global[iminor(inode)].bfdev; + listener = kmalloc(sizeof(*listener), GFP_KERNEL); + if (listener) { + listener->bfdev = bfdev; + listener->minor = bfdev->info.minor; + listener->next = NULL; + bf_add_listener(bfdev, listener); + 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 */ + if (listener->bfdev) { + bf_remove_listener(listener->bfdev, listener); + } + 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 */ + + if (!bfdev) { + return -ENODEV; + } + /* 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, int minor) +{ + struct cdev *cdev; + 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; + cdev = cdev_alloc(); + if (!cdev) { + goto fail_dev_add; + } + 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); + + if (result) + goto fail_dev_add; + + bf_major = MAJOR(bf_dev); + bf_global[minor].bf_cdev = cdev; + 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, int minor) +{ + unregister_chrdev_region(MKDEV(bf_major, 0), BF_MAX_DEVICE_CNT); + cdev_del(bf_global[minor].bf_cdev); +} + +static int bf_init_cdev(struct bf_pci_dev *bfdev, int minor) +{ + int ret; + ret = bf_major_init(bfdev, minor); + 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, minor); + return ret; +} + +static void bf_remove_cdev(struct bf_pci_dev *bfdev) +{ + class_destroy(bf_class); + bf_major_cleanup(bfdev, bfdev->info.minor); +} + + +/** + * 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); + } + + if (bf_get_next_minor_no(&minor)) { + return -EINVAL; + } + + ret = bf_init_cdev(bfdev, minor); + if (ret) { + printk(KERN_ERR "BF: device cdev creation failed\n"); + return ret; + } + + 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; + + memset(bf_global, 0, sizeof(bf_global)); + + 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; + } + + /* 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; + } + + pci_set_drvdata(pdev, bfdev); + sprintf(bfdev->name, "bf_%d", bfdev->info.minor); + /* register bf driver */ + err = bf_register_device(&pdev->dev, bfdev); + if (err != 0) + goto fail_release_irq; + + bf_global[bfdev->info.minor].async_queue = NULL; + bf_global[bfdev->info.minor].bfdev = 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: + pci_set_drvdata(pdev, NULL); + 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); + struct bf_listener *cur_listener; + + 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); + bf_global[bfdev->info.minor].bfdev = NULL; + /* existing filep structures in open file(s) must be informed that + * bf_pci_dev is no longer valid */ + spin_lock(&bf_nonisr_lock); + cur_listener = bfdev->listener_head; + while (cur_listener) { + cur_listener->bfdev = NULL; + cur_listener = cur_listener->next; + } + spin_unlock(&bf_nonisr_lock); + 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); + int minor; + + if (!bfdev) { + return PCI_ERS_RESULT_NONE; + } + printk(KERN_ERR "pci_err_detected state %d\n", state); + 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 */ + minor = bfdev->info.minor; + if (minor < BF_MAX_DEVICE_CNT && bf_global[minor].async_queue) { + kill_fasync(&bf_global[minor].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_A0), 0}, + {PCI_VDEVICE(BF, TOFINO_DEV_ID_B0), 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=msix):\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-wnc-osw1800/modules/bf_tun.c b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/bf_tun.c new file mode 100644 index 0000000000..a1ba7047ba --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/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-wnc-osw1800/modules/i2c-mcp2221.c b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/i2c-mcp2221.c new file mode 100644 index 0000000000..fcaa57fbaf --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/i2c-mcp2221.c @@ -0,0 +1,611 @@ +/* + * i2c bus driver for MCP2221 + * + * Derived from: + * i2c-tiny-usb.c + * i2c-diolan-u2c.c + * usb-serial.c + * onetouch.c + * usb-skeleton.c + * + * Copyright (C) 2014 Microchip Technology Inc. + * + * Author: Bogdan Bolocan http://www.microchip.com/support + * + * 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. + * + * + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "i2c-mcp2221" + +#define USB_VENDOR_ID_MCP2221 0x04d8 +#define USB_DEVICE_ID_MCP2221 0x00dd + +#define MCP2221_OUTBUF_LEN 64 /* USB write packet length */ +#define MCP2221_INBUF_LEN 64 /* USB read packet length */ + +#define MCP2221_MAX_I2C_DATA_LEN 60 + +//#define MCP2221_FREQ_STD 100000 +#define MCP2221_FREQ_STD 400000 +//#define MCP2221_FREQ_STD 50000 +#define MCP2221_FREQ_MAX 500000 + +#define MCP2221_RETRY_MAX 50 +#define MCP2221_STD_DELAY_MS 1 +//#define MCP2221_STD_DELAY_MS 2 + +#define RESP_ERR_NOERR 0x00 +#define RESP_ADDR_NACK 0x25 +#define RESP_READ_ERR 0x7F +#define RESP_READ_COMPL 0x55 +#define RESP_I2C_IDLE 0x00 +#define RESP_I2C_START_TOUT 0x12 +#define RESP_I2C_RSTART_TOUT 0x17 +#define RESP_I2C_WRADDRL_TOUT 0x23 +#define RESP_I2C_WRADDRL_WSEND 0x21 +#define RESP_I2C_WRADDRL_NACK 0x25 +#define RESP_I2C_WRDATA_TOUT 0x44 +#define RESP_I2C_RDDATA_TOUT 0x52 +#define RESP_I2C_STOP_TOUT 0x62 + +#define CMD_MCP2221_STATUS 0x10 +#define SUBCMD_STATUS_CANCEL 0x10 +#define SUBCMD_STATUS_SPEED 0x20 +#define MASK_ADDR_NACK 0x40 + +#define CMD_MCP2221_RDDATA7 0x91 +#define CMD_MCP2221_GET_RDDATA 0x40 + +#define CMD_MCP2221_WRDATA7 0x90 + +/* Structure to hold all of our device specific stuff */ +struct i2c_mcp2221 { + u8 obuffer[MCP2221_OUTBUF_LEN]; /* USB write buffer */ + u8 ibuffer[MCP2221_INBUF_LEN]; /* USB read buffer */ + /* I2C/SMBus data buffer */ + u8 user_data_buffer[MCP2221_MAX_I2C_DATA_LEN]; + int ep_in, ep_out; /* Endpoints */ + struct usb_device *usb_dev; /* the usb device for this device */ + struct usb_interface *interface;/* the interface for this device */ + struct i2c_adapter adapter; /* i2c related things */ + uint frequency; /* I2C/SMBus communication frequency */ + /* Mutex for low-level USB transactions */ + struct mutex mcp2221_usb_op_lock; + /* wq to wait for an ongoing read/write */ + wait_queue_head_t usb_urb_completion_wait; + bool ongoing_usb_ll_op; /* a ll is in progress */ + + struct urb *interrupt_in_urb; + struct urb *interrupt_out_urb; +}; + +static uint frequency = MCP2221_FREQ_STD; /* I2C clock frequency in Hz */ + +module_param(frequency, uint, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(frequency, "I2C clock frequency in hertz"); + +/* usb layer */ + + +/* + * Return list of supported functionality. + */ +static u32 mcp2221_usb_func(struct i2c_adapter *a) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | + I2C_FUNC_SMBUS_READ_BLOCK_DATA | I2C_FUNC_SMBUS_BLOCK_PROC_CALL; +} + +static void mcp2221_usb_cmpl_cbk(struct urb *urb) +{ + struct i2c_mcp2221 *dev = urb->context; + int status = urb->status; + int retval; + + switch (status) { + case 0: /* success */ + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + return; + /* -EPIPE: should clear the halt */ + default: /* error */ + goto resubmit; + } + + /* wake up the waitting function + modify the flag indicating the ll status */ + dev->ongoing_usb_ll_op = 0; + wake_up_interruptible(&dev->usb_urb_completion_wait); + return; + +resubmit: + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) { + dev_err(&dev->interface->dev, + "mcp2221(irq): can't resubmit intrerrupt urb, retval %d\n", + retval); + } +} + +static int mcp2221_ll_cmd(struct i2c_mcp2221 *dev) +{ + int rv; + + /* tell everybody to leave the URB alone */ + dev->ongoing_usb_ll_op = 1; + + /* submit the interrupt out ep packet */ + if (usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL)) { + dev_err(&dev->interface->dev, + "mcp2221(ll): usb_submit_urb intr out failed\n"); + dev->ongoing_usb_ll_op = 0; + return -EIO; + } + + /* wait for its completion */ + rv = wait_event_interruptible(dev->usb_urb_completion_wait, + (!dev->ongoing_usb_ll_op)); + if (rv < 0) { + dev_err(&dev->interface->dev, "mcp2221(ll): wait interrupted\n"); + goto ll_exit_clear_flag; + } + + /* tell everybody to leave the URB alone */ + dev->ongoing_usb_ll_op = 1; + + /* submit the interrupt in ep packet */ + if (usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL)) { + dev_err(&dev->interface->dev, "mcp2221(ll): usb_submit_urb intr in failed\n"); + dev->ongoing_usb_ll_op = 0; + return -EIO; + } + + /* wait for its completion */ + rv = wait_event_interruptible(dev->usb_urb_completion_wait, + (!dev->ongoing_usb_ll_op)); + if (rv < 0) { + dev_err(&dev->interface->dev, "mcp2221(ll): wait interrupted\n"); + goto ll_exit_clear_flag; + } + +ll_exit_clear_flag: + dev->ongoing_usb_ll_op = 0; + return rv; +} + +static int mcp2221_init(struct i2c_mcp2221 *dev) +{ + int ret; + + ret = 0; + if (frequency > MCP2221_FREQ_MAX) + frequency = MCP2221_FREQ_MAX; + + /* initialize the MCP2221 and bring it to "idle/ready" state */ + dev_info(&dev->interface->dev, + "MCP2221 at USB bus %03d address %03d Freq=%dKhz-- mcp2221_init()\n", + dev->usb_dev->bus->busnum, dev->usb_dev->devnum, frequency/1000); + + /* initialize unlocked mutex */ + mutex_init(&dev->mcp2221_usb_op_lock); + + dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->interrupt_out_urb) + goto init_error; + + usb_fill_int_urb(dev->interrupt_out_urb, dev->usb_dev, + usb_sndintpipe(dev->usb_dev, + dev->ep_out), + (void *)&dev->obuffer, MCP2221_OUTBUF_LEN, + mcp2221_usb_cmpl_cbk, dev, + 1); + + dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->interrupt_in_urb) + goto init_error; + + usb_fill_int_urb(dev->interrupt_in_urb, dev->usb_dev, + usb_rcvintpipe(dev->usb_dev, + dev->ep_in), + (void *)&dev->ibuffer, MCP2221_INBUF_LEN, + mcp2221_usb_cmpl_cbk, dev, + 1); + ret = 0; + goto init_no_error; + +init_error: + dev_err(&dev->interface->dev, "mcp2221_init: Error = %d\n", ret); + ret = -ENODEV; + +init_no_error: + dev_info(&dev->interface->dev, "mcp2221_init: Success\n"); + return ret; +} + +static int mcp2221_i2c_readwrite(struct i2c_mcp2221 *dev, + struct i2c_msg *pmsg) +{ + u8 ucI2cDiv, ucCancelXfer, ucXferLen; + int rv, retries; + unsigned int sleepCmd; + u8 *pSrc, *pDst, usbCmdStatus; + + retries = 0; + ucCancelXfer = 0; + /* clock divider for I2C operations */ + ucI2cDiv = (u8)((12000000/frequency) - 3); + + /* determine the best delay value here */ + /* (MCP2221_STD_DELAY_MS * MCP2221_FREQ_MAX)/frequency; */ + sleepCmd = MCP2221_STD_DELAY_MS; + + if (pmsg->len > MCP2221_MAX_I2C_DATA_LEN) + return -EINVAL; + +readwrite_reinit: + dev->obuffer[0] = CMD_MCP2221_STATUS; /* code for STATUS cmd */ + dev->obuffer[1] = 0x00; + dev->obuffer[2] = ucCancelXfer; /* cancel subcmd */ + dev->obuffer[3] = SUBCMD_STATUS_SPEED; /* set the xfer speed */ + dev->obuffer[4] = ucI2cDiv; + dev->obuffer[5] = 0x00; + dev->obuffer[6] = 0x00; + dev->obuffer[7] = 0x00; + + rv = mcp2221_ll_cmd(dev); + if (rv < 0) + return -EFAULT; + + if (dev->ibuffer[1] != RESP_ERR_NOERR) + return -EFAULT; + + if (dev->ibuffer[3] != SUBCMD_STATUS_SPEED) { + /* the speed could not be set - wait a while and retry */ + if (retries < MCP2221_RETRY_MAX) { + /* wait a while and retry the operation */ + retries++; + msleep(MCP2221_STD_DELAY_MS); + ucCancelXfer = SUBCMD_STATUS_CANCEL; + goto readwrite_reinit; + } else { + /* max number of retries was reached - return error */ + dev_err(&dev->interface->dev, + "mcp2221 CANCEL ERROR:retries = %d\n", retries); + return -EFAULT; + } + } + + if (pmsg->flags & I2C_M_RD) { + /* I2C read */ + ucXferLen = (u8)pmsg->len; + dev->obuffer[0] = CMD_MCP2221_RDDATA7; + dev->obuffer[1] = ucXferLen; /* LSB of the xfer length */ + dev->obuffer[2] = 0; /* no MSB for the xfer length */ + /* address in 8-bit format */ + dev->obuffer[3] = (u8)((pmsg->addr) << 1); + + rv = mcp2221_ll_cmd(dev); + if (rv < 0) + return -EFAULT; + + if (dev->ibuffer[1] != RESP_ERR_NOERR) + return -EFAULT; + + retries = 0; + dev->obuffer[0] = CMD_MCP2221_GET_RDDATA; + dev->obuffer[1] = 0x00; + dev->obuffer[2] = 0x00; + dev->obuffer[3] = 0x00; + + while (retries < MCP2221_RETRY_MAX) { + msleep(sleepCmd); + + rv = mcp2221_ll_cmd(dev); + if (rv < 0) + return -EFAULT; + + if (dev->ibuffer[1] != RESP_ERR_NOERR) + return -EFAULT; + + if (dev->ibuffer[2] == RESP_ADDR_NACK) + return -EFAULT; + + /* break the loop - cmd ended ok - used for bus scan */ + if ((dev->ibuffer[3] == 0x00) && + (dev->ibuffer[2] == 0x00)) + break; + + if (dev->ibuffer[3] == RESP_READ_ERR) { + retries++; + continue; + } + + if ((dev->ibuffer[2] == RESP_READ_COMPL) && + (dev->ibuffer[3] == ucXferLen)) { + /* we got the data - copy it */ + pSrc = (u8 *)&dev->ibuffer[4]; + pDst = (u8 *)&pmsg->buf[0]; + memcpy(pDst, pSrc, ucXferLen); + + if (pmsg->flags & I2C_M_RECV_LEN) + pmsg->len = ucXferLen; + + break; + } + + } + if (retries >= MCP2221_RETRY_MAX) + return -EFAULT; + } else { + /* I2C write */ + ucXferLen = (u8)pmsg->len; + dev->obuffer[0] = CMD_MCP2221_WRDATA7; + dev->obuffer[1] = ucXferLen; /* LSB of the xfer length */ + dev->obuffer[2] = 0; /* no MSB for the xfer length */ + /* address in 8-bit format */ + dev->obuffer[3] = (u8)((pmsg->addr) << 1); + /* copy the data we've read back */ + pSrc = (u8 *)&pmsg->buf[0]; + pDst = (u8 *)&dev->obuffer[4]; + memcpy(pDst, pSrc, ucXferLen); + + retries = 0; + + while (retries < MCP2221_RETRY_MAX) { + rv = mcp2221_ll_cmd(dev); + if (rv < 0) + return -EFAULT; + + if (dev->ibuffer[1] != RESP_ERR_NOERR) { + usbCmdStatus = dev->ibuffer[2]; + if (usbCmdStatus == RESP_I2C_START_TOUT) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRADDRL_TOUT) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRADDRL_NACK) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRDATA_TOUT) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_STOP_TOUT) + return -EFAULT; + + msleep(sleepCmd); + retries++; + continue; + } else { /* command completed successfully */ + break; + } + } + if (retries >= MCP2221_RETRY_MAX) + return -EFAULT; + + /* now, prepare for the STATUS stage */ + retries = 0; + dev->obuffer[0] = CMD_MCP2221_STATUS; /* code for STATUS cmd */ + dev->obuffer[1] = 0x00; + dev->obuffer[2] = 0x00; + dev->obuffer[3] = 0x00; + dev->obuffer[4] = 0x00; + dev->obuffer[5] = 0x00; + dev->obuffer[6] = 0x00; + dev->obuffer[7] = 0x00; + + while (retries < MCP2221_RETRY_MAX) { + rv = mcp2221_ll_cmd(dev); + if (rv < 0) + return -EFAULT; + + if (dev->ibuffer[1] != RESP_ERR_NOERR) + return -EFAULT; + + /* i2c slave address was nack-ed */ + if (dev->ibuffer[20] & MASK_ADDR_NACK) + return -EFAULT; + + usbCmdStatus = dev->ibuffer[8]; + if (usbCmdStatus == RESP_I2C_IDLE) + break; + + if (usbCmdStatus == RESP_I2C_START_TOUT) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRADDRL_TOUT) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRADDRL_WSEND) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRADDRL_NACK) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_WRDATA_TOUT) + return -EFAULT; + + if (usbCmdStatus == RESP_I2C_STOP_TOUT) + return -EFAULT; + + msleep(sleepCmd); + retries++; + } + if (retries >= MCP2221_RETRY_MAX) + return -EFAULT; + } + + return 0; +} + +/* device layer */ +static int mcp2221_usb_i2c_xfer(struct i2c_adapter *adap, + struct i2c_msg *msgs, int num) +{ + struct i2c_mcp2221 *dev = i2c_get_adapdata(adap); + struct i2c_msg *pmsg; + int ret, count; + + for (count = 0; count < num; count++) { + pmsg = &msgs[count]; + /* no concurrent users of the mcp2221 i2c xfer */ + ret = mutex_lock_interruptible(&dev->mcp2221_usb_op_lock); + if (ret < 0) + goto abort; + + ret = mcp2221_i2c_readwrite(dev, pmsg); + mutex_unlock(&dev->mcp2221_usb_op_lock); + if (ret < 0) + goto abort; + } + + /* if all the messages were transferred ok, return "num" */ + ret = num; + +abort: + return ret; +} + +static const struct i2c_algorithm mcp2221_usb_algorithm = { + .master_xfer = mcp2221_usb_i2c_xfer, + .functionality = mcp2221_usb_func, +}; + +static const struct usb_device_id mcp2221_table[] = { + { USB_DEVICE(USB_VENDOR_ID_MCP2221, USB_DEVICE_ID_MCP2221) }, + { } +}; + +MODULE_DEVICE_TABLE(usb, mcp2221_table); + +static void mcp2221_free(struct i2c_mcp2221 *dev) +{ + usb_put_dev(dev->usb_dev); + kfree(dev); +} + +static int mcp2221_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_host_interface *hostif = interface->cur_altsetting; + struct i2c_mcp2221 *dev; + int ret; + + if ((hostif->desc.bInterfaceNumber != 2) + || (hostif->desc.bInterfaceClass != 3)) { + pr_info("i2c-mcp2221(probe): Interface doesn't match the MCP2221 HID\n"); + return -ENODEV; + } + + /* allocate memory for our device state and initialize it */ + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (dev == NULL) { + pr_info("i2c-mcp2221(probe): no memory for device state\n"); + ret = -ENOMEM; + goto error; + } + + dev->ep_in = hostif->endpoint[0].desc.bEndpointAddress; + dev->ep_out = hostif->endpoint[1].desc.bEndpointAddress; + + dev->usb_dev = usb_get_dev(interface_to_usbdev(interface)); + dev->interface = interface; + + init_waitqueue_head(&dev->usb_urb_completion_wait); + + /* save our data pointer in this interface device */ + usb_set_intfdata(interface, dev); + + /* setup i2c adapter description */ + dev->adapter.owner = THIS_MODULE; + dev->adapter.class = I2C_CLASS_HWMON; + dev->adapter.algo = &mcp2221_usb_algorithm; + i2c_set_adapdata(&dev->adapter, dev); + + snprintf(dev->adapter.name, sizeof(dev->adapter.name), + DRIVER_NAME " at bus %03d device %03d", + dev->usb_dev->bus->busnum, dev->usb_dev->devnum); + + dev->adapter.dev.parent = &dev->interface->dev; + + /* initialize mcp2221 i2c interface */ + ret = mcp2221_init(dev); + if (ret < 0) { + dev_err(&interface->dev, "failed to initialize adapter\n"); + goto error_free; + } + + /* and finally attach to i2c layer */ + ret = i2c_add_adapter(&dev->adapter); + if (ret < 0) { + dev_err(&interface->dev, "failed to add I2C adapter\n"); + goto error_free; + } + + dev_info(&dev->interface->dev, + "mcp2221_probe() -> chip connected -> Success\n"); + return 0; + +error_free: + usb_set_intfdata(interface, NULL); + mcp2221_free(dev); +error: + return ret; +} + +static void mcp2221_disconnect(struct usb_interface *interface) +{ + struct i2c_mcp2221 *dev = usb_get_intfdata(interface); + + i2c_del_adapter(&dev->adapter); + + usb_kill_urb(dev->interrupt_in_urb); + usb_kill_urb(dev->interrupt_out_urb); + usb_free_urb(dev->interrupt_in_urb); + usb_free_urb(dev->interrupt_out_urb); + + usb_set_intfdata(interface, NULL); + mcp2221_free(dev); + + pr_info("i2c-mcp2221(disconnect) -> chip disconnected"); +} + +static struct usb_driver mcp2221_driver = { + .name = DRIVER_NAME, + .probe = mcp2221_probe, + .disconnect = mcp2221_disconnect, + .id_table = mcp2221_table, +}; + +module_usb_driver(mcp2221_driver); + +MODULE_AUTHOR("Bogdan Bolocan"); +MODULE_DESCRIPTION(DRIVER_NAME "I2C MCP2221"); +MODULE_LICENSE("GPL v2"); diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_cpld.c b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_cpld.c new file mode 100644 index 0000000000..3a7d40ba91 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_cpld.c @@ -0,0 +1,198 @@ +/* + * wnc_cpld.c - A driver for control wnc_cpld base on lm75.c + * + * Copyright (c) 1998, 1999 Frodo Looijaard + * Copyright (c) 2017 WNC + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Addresses scanned */ +static const unsigned short normal_i2c[] = { 0x31, 0x32, I2C_CLIENT_END }; + +/* Size of EEPROM in bytes */ +#define CPLD_SIZE 3 + +/* Each client has this additional data */ +struct cpld_data { + struct mutex update_lock; + char valid; /* !=0 if registers are valid */ + unsigned long last_updated; /* In jiffies */ + u8 data[CPLD_SIZE]; /* Register value */ +}; + +static ssize_t show_value(struct device *dev, struct device_attribute *da, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct i2c_client *client = to_i2c_client(dev); + struct cpld_data *data = i2c_get_clientdata(client); + + mutex_lock(&data->update_lock); + data->data[0] = i2c_smbus_read_byte_data(client, attr->index); + mutex_unlock(&data->update_lock); + + return sprintf(buf, "%02x\n", data->data[0]); +} + +static ssize_t set_value(struct device *dev, struct device_attribute *da, const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct i2c_client *client = to_i2c_client(dev); + struct cpld_data *data = i2c_get_clientdata(client); + u8 temp; + int error; + + error = kstrtou8(buf, 10, &temp); + if (error) + return error; + + mutex_lock(&data->update_lock); + i2c_smbus_write_byte_data(client, attr->index, temp); + mutex_unlock(&data->update_lock); + + return count; +} + +static SENSOR_DEVICE_ATTR(reset_control, S_IWUSR | S_IRUGO, show_value, set_value, 2); +static SENSOR_DEVICE_ATTR(sfp_mod_abs1, S_IRUGO, show_value, NULL, 3); +static SENSOR_DEVICE_ATTR(sfp_mod_abs2, S_IRUGO, show_value, NULL, 4); +static SENSOR_DEVICE_ATTR(sfp_mod_abs3, S_IRUGO, show_value, NULL, 5); +static SENSOR_DEVICE_ATTR(sfp_mod_abs4, S_IRUGO, show_value, NULL, 6); +static SENSOR_DEVICE_ATTR(qsfp_modprs, S_IRUGO, show_value, NULL, 22); +static SENSOR_DEVICE_ATTR(qsfp_lpmode, S_IWUSR | S_IRUGO, show_value, set_value, 24); + +static struct attribute *cpld2_attributes[] = { + &sensor_dev_attr_reset_control.dev_attr.attr, + &sensor_dev_attr_sfp_mod_abs1.dev_attr.attr, + &sensor_dev_attr_sfp_mod_abs2.dev_attr.attr, + &sensor_dev_attr_sfp_mod_abs3.dev_attr.attr, + &sensor_dev_attr_qsfp_modprs.dev_attr.attr, + &sensor_dev_attr_qsfp_lpmode.dev_attr.attr, + NULL +}; + +static struct attribute *cpld1_attributes[] = { + &sensor_dev_attr_sfp_mod_abs1.dev_attr.attr, + &sensor_dev_attr_sfp_mod_abs2.dev_attr.attr, + &sensor_dev_attr_sfp_mod_abs3.dev_attr.attr, + &sensor_dev_attr_sfp_mod_abs4.dev_attr.attr, + NULL +}; + +static const struct attribute_group cpld2_group = { + .attrs = cpld2_attributes, +}; + +static const struct attribute_group cpld1_group = { + .attrs = cpld1_attributes, +}; + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int cpld_detect(struct i2c_client *new_client, struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = new_client->adapter; + int conf; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + /* Unused bits */ + conf = i2c_smbus_read_byte_data(new_client, 0); + if (!conf) + return -ENODEV; + + return 0; +} + + +static int cpld_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct cpld_data *data; + int status; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; +#if 1 + data = devm_kzalloc(&client->dev, sizeof(struct cpld_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); +#endif + + if (client->addr == 49) /* 0x31 */ + /* Register sysfs hooks */ + status = sysfs_create_group(&client->dev.kobj, &cpld1_group); + else if (client->addr == 50) /* 0x32 */ + /* Register sysfs hooks */ + status = sysfs_create_group(&client->dev.kobj, &cpld2_group); + else + status = 1; + + if (status) + return status; + + dev_info(&client->dev, "cpld 0x%x found\n", client->addr); + + return 0; +} + +static int cpld_remove(struct i2c_client *client) +{ + if (client->addr == 49) /* 0x31 */ + sysfs_remove_group(&client->dev.kobj, &cpld1_group); + else if (client->addr == 50) /* 0x32 */ + sysfs_remove_group(&client->dev.kobj, &cpld2_group); + else + return 1; + + return 0; +} + +static const struct i2c_device_id cpld_id[] = { + { "wnc_cpld", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, cpld_id); + +static struct i2c_driver cpld_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "wnc_cpld", + }, + .probe = cpld_probe, + .remove = cpld_remove, + .id_table = cpld_id, + .detect = cpld_detect, + .address_list = normal_i2c, +}; + +module_i2c_driver(cpld_driver); + +MODULE_AUTHOR("WNC "); +MODULE_DESCRIPTION("WNC CPLD driver"); +MODULE_LICENSE("GPL"); diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_cpld3.c b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_cpld3.c new file mode 100644 index 0000000000..a24698aa9c --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_cpld3.c @@ -0,0 +1,200 @@ +/* + * wnc_cpld.c - A driver for control wnc_cpld3 base on lm75.c + * + * Copyright (c) 1998, 1999 Frodo Looijaard + * Copyright (c) 2017 WNC + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Addresses scanned */ +static const unsigned short normal_i2c[] = { 0x33, I2C_CLIENT_END }; + +/* Size of EEPROM in bytes */ +#define CPLD_SIZE 3 + +/* Each client has this additional data */ +struct cpld_data { + struct i2c_client *client; + struct mutex update_lock; + char valid; /* !=0 if registers are valid */ + unsigned long last_updated; /* In jiffies */ + u8 data[CPLD_SIZE]; /* Register value */ +}; + +static ssize_t show_hwmon_value(struct device *dev, struct device_attribute *da, char *buf) +{ + struct cpld_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; + int index = to_sensor_dev_attr_2(da)->index; + + mutex_lock(&data->update_lock); + data->data[0] = i2c_smbus_read_byte_data(client, index); + mutex_unlock(&data->update_lock); + + return sprintf(buf, "%d\n", data->data[0]); +} + +static ssize_t show_sysfs_value(struct device *dev, struct device_attribute *da, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct i2c_client *client = to_i2c_client(dev); + struct cpld_data *data = i2c_get_clientdata(client); + + mutex_lock(&data->update_lock); + data->data[0] = i2c_smbus_read_byte_data(client, attr->index); + mutex_unlock(&data->update_lock); + + return sprintf(buf, "%02x\n", data->data[0]); +} + +static ssize_t set_hwmon_value(struct device *dev, struct device_attribute *da, const char *buf, size_t count) +{ + struct cpld_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; + int index = to_sensor_dev_attr_2(da)->index; + u8 temp; + int error; + + error = kstrtou8(buf, 10, &temp); + if (error) + return error; + + mutex_lock(&data->update_lock); + i2c_smbus_write_byte_data(client, index, temp); + mutex_unlock(&data->update_lock); + + return count; +} + +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_hwmon_value, NULL, 6); +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_hwmon_value, NULL, 7); +static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_hwmon_value, NULL, 8); +static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_hwmon_value, NULL, 9); +static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_hwmon_value, NULL, 10); +static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_hwmon_value, set_hwmon_value, 6); +static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_hwmon_value, set_hwmon_value, 7); +static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_hwmon_value, set_hwmon_value, 8); +static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_hwmon_value, set_hwmon_value, 9); +static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_hwmon_value, set_hwmon_value, 10); + +static struct attribute *cpld3_hwmon_attrs[] = { + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan3_input.dev_attr.attr, + &sensor_dev_attr_fan4_input.dev_attr.attr, + &sensor_dev_attr_fan5_input.dev_attr.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + &sensor_dev_attr_pwm4.dev_attr.attr, + &sensor_dev_attr_pwm5.dev_attr.attr, + NULL +}; + +ATTRIBUTE_GROUPS(cpld3_hwmon); + +static SENSOR_DEVICE_ATTR(cpld_version, S_IRUGO, show_sysfs_value, NULL, 1); +static SENSOR_DEVICE_ATTR(power_good, S_IRUGO, show_sysfs_value, NULL, 4); + +static struct attribute *cpld3_sysfs_attrs[] = { + &sensor_dev_attr_cpld_version.dev_attr.attr, + &sensor_dev_attr_power_good.dev_attr.attr, + NULL +}; + +static const struct attribute_group cpld3_sysfs_group = { + .attrs = cpld3_sysfs_attrs, +}; + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int cpld_detect(struct i2c_client *new_client, struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = new_client->adapter; + int conf; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + /* Unused bits */ + conf = i2c_smbus_read_byte_data(new_client, 0); + if (!conf) + return -ENODEV; + + return 0; +} + + +static int cpld_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct device *hwmon_dev; + struct cpld_data *data; + int status; + + data = devm_kzalloc(&client->dev, sizeof(struct cpld_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->client = client; + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); + + status = sysfs_create_group(&client->dev.kobj, &cpld3_sysfs_group); + hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, client->name, data, cpld3_hwmon_groups); + + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static int cpld_remove(struct i2c_client *client) +{ + devm_hwmon_device_unregister(&client->dev); + sysfs_remove_group(&client->dev.kobj, &cpld3_sysfs_group); + return 0; +} + +static const struct i2c_device_id cpld_id[] = { + { "wnc_cpld3", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, cpld_id); + +static struct i2c_driver cpld_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "wnc_cpld3", + }, + .probe = cpld_probe, + .remove = cpld_remove, + .id_table = cpld_id, + .detect = cpld_detect, + .address_list = normal_i2c, +}; + +module_i2c_driver(cpld_driver); + +MODULE_AUTHOR("WNC "); +MODULE_DESCRIPTION("WNC CPLD3 driver"); +MODULE_LICENSE("GPL"); diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_eeprom.c b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_eeprom.c new file mode 100644 index 0000000000..8ddf1f2af2 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/modules/wnc_eeprom.c @@ -0,0 +1,286 @@ +/* + * Copyright (C) 1998, 1999 Frodo Looijaard and + * Philip Edelbrock + * Copyright (C) 2003 Greg Kroah-Hartman + * Copyright (C) 2003 IBM Corp. + * Copyright (C) 2004 Jean Delvare + * + * 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. + */ + +#include +#include +#include +#include +#include +#include + +/* Addresses to scan */ +static const unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54, + 0x55, 0x56, 0x57, I2C_CLIENT_END }; + + +/* Size of EEPROM in bytes */ +#define EEPROM_SIZE 256 + +/* possible types of eeprom devices */ +enum eeprom_nature { + UNKNOWN, + VAIO, +}; + +/* Each client has this additional data */ +struct eeprom_data { + struct mutex update_lock; + u8 valid; /* bitfield, bit!=0 if slice is valid */ + unsigned long last_updated[8]; /* In jiffies, 8 slices */ + u8 data[EEPROM_SIZE]; /* Register values */ + enum eeprom_nature nature; +}; + + +static void eeprom_update_client(struct i2c_client *client, u8 slice) +{ + struct eeprom_data *data = i2c_get_clientdata(client); + int i; + + mutex_lock(&data->update_lock); + + if (!(data->valid & (1 << slice)) || + time_after(jiffies, data->last_updated[slice] + 300 * HZ)) { + dev_dbg(&client->dev, "Starting eeprom update, slice %u\n", slice); + + if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK)) { + //for (i = slice << 5; i < (slice + 1) << 5; i += 32) + for (i = slice << 5; i < (slice + 1) << 5; i += 24) + if (i2c_smbus_read_i2c_block_data(client, i, + 24, data->data + i) + != 24) + goto exit; + } else { + for (i = slice << 5; i < (slice + 1) << 5; i += 2) { + int word = i2c_smbus_read_word_data(client, i); + if (word < 0) + goto exit; + data->data[i] = word & 0xff; + data->data[i + 1] = word >> 8; + } + } + data->last_updated[slice] = jiffies; + data->valid |= (1 << slice); + } +exit: + mutex_unlock(&data->update_lock); +} + +static ssize_t eeprom_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj)); + struct eeprom_data *data = i2c_get_clientdata(client); + u8 slice; + + data->valid = 0; + + if (off > EEPROM_SIZE) + return 0; + if (off + count > EEPROM_SIZE) + count = EEPROM_SIZE - off; + + /* Only refresh slices which contain requested bytes */ + for (slice = off >> 5; slice <= (off + count - 1) >> 5; slice++) + eeprom_update_client(client, slice); + + /* Hide Vaio private settings to regular users: + - BIOS passwords: bytes 0x00 to 0x0f + - UUID: bytes 0x10 to 0x1f + - Serial number: 0xc0 to 0xdf */ + if (data->nature == VAIO && !capable(CAP_SYS_ADMIN)) { + int i; + + for (i = 0; i < count; i++) { + if ((off + i <= 0x1f) || + (off + i >= 0xc0 && off + i <= 0xdf)) + buf[i] = 0; + else + buf[i] = data->data[off + i]; + } + } else { + memcpy(buf, &data->data[off], count); + } + + return count; +} + +static ssize_t eeprom_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj)); + struct eeprom_data *data = i2c_get_clientdata(client); + u8 temp; + int error, reg; + + mutex_lock(&data->update_lock); + + error = kstrtou8(buf, 10, &temp); + if (error) + return error; + + if (client->addr == 0x51) { /* SFP AOC cable, page selection byte is 126 */ + reg = 126; + } + else if (client->addr == 0x50) { /* QSFP, page selection byte is 127 */ + data->data[0] = i2c_smbus_read_byte_data(client, 0); + + /* Base on SFF-8024, determine this module is SFP or QSFP by byte 0 (Identifier) */ + switch (data->data[0]){ + case 12: + case 13: + case 17: + case 24: + reg = 127; + break; + + default: + goto exit; + } + } + else + goto exit; + + i2c_smbus_write_byte_data(client, reg, temp); + +exit: + mutex_unlock(&data->update_lock); + + return count; +} + +static struct bin_attribute eeprom_attr = { + .attr = { + .name = "eeprom", + .mode = S_IWUSR | S_IRUGO | S_IWGRP | S_IWOTH, + }, + .size = EEPROM_SIZE, + .read = eeprom_read, + .write = eeprom_write, +}; + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int eeprom_detect(struct i2c_client *client, struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = client->adapter; + + /* EDID EEPROMs are often 24C00 EEPROMs, which answer to all + addresses 0x50-0x57, but we only care about 0x50. So decline + attaching to addresses >= 0x51 on DDC buses */ + if (!(adapter->class & I2C_CLASS_SPD) && client->addr >= 0x51) + return -ENODEV; + + /* There are four ways we can read the EEPROM data: + (1) I2C block reads (faster, but unsupported by most adapters) + (2) Word reads (128% overhead) + (3) Consecutive byte reads (88% overhead, unsafe) + (4) Regular byte data reads (265% overhead) + The third and fourth methods are not implemented by this driver + because all known adapters support one of the first two. */ + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA) + && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK)) + return -ENODEV; + + strlcpy(info->type, "wnc_eeprom", I2C_NAME_SIZE); + + return 0; +} + +static int eeprom_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct i2c_adapter *adapter = client->adapter; + struct eeprom_data *data; + int err; + + if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) { + err = -ENOMEM; + goto exit; + } + + memset(data->data, 0xff, EEPROM_SIZE); + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); + data->nature = UNKNOWN; + + /* Detect the Vaio nature of EEPROMs. + We use the "PCG-" or "VGN-" prefix as the signature. */ + if (client->addr == 0x57 + && i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) { + char name[4]; + + name[0] = i2c_smbus_read_byte_data(client, 0x80); + name[1] = i2c_smbus_read_byte_data(client, 0x81); + name[2] = i2c_smbus_read_byte_data(client, 0x82); + name[3] = i2c_smbus_read_byte_data(client, 0x83); + + if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) { + dev_info(&client->dev, "Vaio EEPROM detected, " + "enabling privacy protection\n"); + data->nature = VAIO; + } + } + + /* create the sysfs eeprom file */ + err = sysfs_create_bin_file(&client->dev.kobj, &eeprom_attr); + if (err) + goto exit_kfree; + + return 0; + +exit_kfree: + kfree(data); +exit: + return err; +} + +static int eeprom_remove(struct i2c_client *client) +{ + sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr); + kfree(i2c_get_clientdata(client)); + + return 0; +} + +static const struct i2c_device_id eeprom_id[] = { + { "wnc_eeprom", 0 }, + { } +}; + +static struct i2c_driver eeprom_driver = { + .driver = { + .name = "wnc_eeprom", + }, + .probe = eeprom_probe, + .remove = eeprom_remove, + .id_table = eeprom_id, + + .class = I2C_CLASS_DDC | I2C_CLASS_SPD, + .detect = eeprom_detect, + .address_list = normal_i2c, +}; + +module_i2c_driver(eeprom_driver); + +MODULE_AUTHOR("Frodo Looijaard and " + "Philip Edelbrock and " + "Greg Kroah-Hartman "); +MODULE_DESCRIPTION("I2C EEPROM driver"); +MODULE_LICENSE("GPL"); diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/device_node.sh b/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/device_node.sh new file mode 100644 index 0000000000..7e1c7c45a7 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/device_node.sh @@ -0,0 +1,91 @@ +#!/bin/bash + +SEARCH_I2C_BUS=$(ls /sys/bus/i2c/devices) +I2C_BUS=-1 + +for i in $SEARCH_I2C_BUS +do + if [[ -n $(cat /sys/bus/i2c/devices/$i/name | grep i2c-mcp2221) ]]; then + I2C_BUS=$(echo $i | sed 's/i2c-//g') + break + fi +done + +if [[ $I2C_BUS == -1 ]]; then + echo "Can't find i2c-mcp2221" + exit +fi + +TOTAL_MUX=8 +START_NODE_NUM=$((I2C_BUS+1)) + +modprobe i2c_mux_pca954x force_deselect_on_exit=1 + +echo pca9548 0x70 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x71 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x72 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x73 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x74 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x75 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x76 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device +echo pca9548 0x77 > /sys/bus/i2c/devices/i2c-$I2C_BUS/new_device + +sleep 5 + +/sbin/modprobe wnc_cpld +/sbin/modprobe wnc_cpld3 +/sbin/modprobe wnc_eeprom +/sbin/modprobe eeprom + +# MUX0: i2c-3~i2c-10 +# MUX1: i2c-11~i2c-18 +# MUX2: i2c-19~i2c-26 +# MUX3: i2c-27~i2c-34 +# MUX4: i2c-35~i2c-42 +# MUX5: i2c-43~i2c-50 +# MUX6: i2c-51~i2c-58 +# MUX7: i2c-59~i2c-66 + +# MUX0 channel0 +CHANNEL=0 +echo wnc_cpld 0x31 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +# MUX0 channel1 +CHANNEL=1 +echo wnc_cpld 0x32 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +# MUX0 channel2 +CHANNEL=2 +echo wnc_cpld3 0x33 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device +echo wnc_eeprom 0x53 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +# MUX0 channel3 +CHANNEL=3 +echo wnc_eeprom 0x50 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device +echo wnc_eeprom 0x51 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +# MUX0 channel4 +CHANNEL=4 +echo wnc_eeprom 0x54 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device +echo tmp421 0x1E > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device +sleep 1 +echo tmp75 0x4E > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device +sleep 1 +echo tmp421 0x4F > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +# MUX0 channel5 +CHANNEL=5 +echo wnc_eeprom 0x52 > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +# MUX0 channel7 +CHANNEL=7 +#echo wnc_eeprom 0x5B > /sys/bus/i2c/devices/i2c-$(($START_NODE_NUM+$CHANNEL))/new_device + +START_PORT_NUM=$((START_NODE_NUM+8)) +END_PORT_NUM=$((TOTAL_MUX*8+1)) + +for i in $(seq $START_PORT_NUM $END_PORT_NUM) +do + echo wnc_eeprom 0x50 > /sys/bus/i2c/devices/i2c-$i/new_device + echo wnc_eeprom 0x51 > /sys/bus/i2c/devices/i2c-$i/new_device +done diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/driver_load.sh b/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/driver_load.sh new file mode 100644 index 0000000000..81cee0383f --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/driver_load.sh @@ -0,0 +1,50 @@ +#!/bin/bash + +vid=04d8 +pid=00dd + +#check to see if sysfs is mounted +sysfs_path=`awk '/^sysfs/{ print $2 }' < /proc/mounts` +curr_path=`pwd` + +#if variable is empty, we should exit. No SYSFS found +if [[ -z $sysfs_path ]]; then + echo "No sysfs in this system! Exiting..." + exit 1 +fi + +function load_drivers +{ + modprobe i2c-dev + if [[ $? -ne 0 ]]; then + echo "Cannot load the \"i2c-dev\" driver! Exiting..." + exit 1 + fi + modprobe i2c-mcp2221 + if [[ $? -ne 0 ]]; then + echo "Cannot load the \"i2c-mcp2221\" driver! Exiting..." + exit 1 + fi + echo "I2C related drivers are loaded" +} + +usb_device_path=${sysfs_path}/bus/usb/devices + +cd $usb_device_path + +for usbdev in *; do + idvendor=${usb_device_path}/${usbdev}/idVendor + idproduct=${usb_device_path}/${usbdev}/idProduct + usb_driver=${usb_device_path}/${usbdev}/${usbdev}:1.2/driver + if [[ -f $idvendor ]]; then + dev_vid=`grep -i $vid < $idvendor` + dev_pid=`grep -i $pid < $idproduct` + if [[ -n $dev_vid ]] && [[ -n $dev_pid ]]; then + echo "I found the requested VID/PID: $dev_vid, $dev_pid" + load_drivers + echo -n "${usbdev}:1.2" > ${usb_driver}/unbind + echo -n "${usbdev}:1.2" > ${sysfs_path}/bus/usb/drivers/i2c-mcp2221/bind + fi + fi +done + diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/test b/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/test new file mode 100644 index 0000000000..38327722c9 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/scripts/test @@ -0,0 +1 @@ +echo "test" diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/service/device_node.service b/platform/barefoot/sonic-platform-modules-wnc-osw1800/service/device_node.service new file mode 100644 index 0000000000..fd1bd9b156 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/service/device_node.service @@ -0,0 +1,11 @@ +[Unit] +Description=Create device nodes for i2c devices. +Requires=driver_load.service +After=driver_load.service + +[Service] +Type=oneshot +ExecStart=/bin/bash /usr/local/bin/device_node.sh + +[Install] +WantedBy=multi-user.target diff --git a/platform/barefoot/sonic-platform-modules-wnc-osw1800/service/driver_load.service b/platform/barefoot/sonic-platform-modules-wnc-osw1800/service/driver_load.service new file mode 100644 index 0000000000..52ce4d2f44 --- /dev/null +++ b/platform/barefoot/sonic-platform-modules-wnc-osw1800/service/driver_load.service @@ -0,0 +1,10 @@ +[Unit] +Description=Initialize i2c-mcp2221 driver. +Before=pmon.service + +[Service] +Type=oneshot +ExecStart=/bin/bash /usr/local/bin/driver_load.sh + +[Install] +WantedBy=multi-user.target