import more python files used in the project from netfpga
This commit is contained in:
Nico Schottelius
parent
1c661f6990
commit
9a03ee1c3f
2 changed files with 375 additions and 0 deletions
90
netpfga/minip4/sw/CLI/p4_regs_api.py
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90
netpfga/minip4/sw/CLI/p4_regs_api.py
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#!/usr/bin/env python
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#
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# Copyright (c) 2015 University of Cambridge
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# All rights reserved.
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#
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# This software was developed by Stanford University and the University of Cambridge Computer Laboratory
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# under National Science Foundation under Grant No. CNS-0855268,
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# the University of Cambridge Computer Laboratory under EPSRC INTERNET Project EP/H040536/1 and
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# by the University of Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249 ("MRC2"),
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# as part of the DARPA MRC research programme.
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#
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# @NETFPGA_LICENSE_HEADER_START@
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#
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# Licensed to NetFPGA C.I.C. (NetFPGA) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. NetFPGA licenses this
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# file to you under the NetFPGA Hardware-Software License, Version 1.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at:
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#
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# http://www.netfpga-cic.org
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#
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# Unless required by applicable law or agreed to in writing, Work distributed
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# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations under the License.
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#
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# @NETFPGA_LICENSE_HEADER_END@
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#
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from NFTest import *
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import sys, os, re, json
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from fcntl import *
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from ctypes import *
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from collections import OrderedDict
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# Loading the SUME shared library
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print "loading libsume.."
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lib_path=os.path.join(os.environ['SUME_FOLDER'],'lib','sw','std','hwtestlib','libsume.so')
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libsume=cdll.LoadLibrary(lib_path)
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# argtypes for the functions called from C
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libsume.regread.argtypes = [c_uint]
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libsume.regwrite.argtypes= [c_uint, c_uint]
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EXTERN_DEFINES_FILE = os.path.expandvars("$P4_PROJECT_DIR/sw/CLI/SimpleSumeSwitch_extern_defines.json")
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ERROR_CODE = -1
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"""
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Read the SimpleSumeSwitch_reg_defines.txt file
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"""
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def read_extern_defines():
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with open(EXTERN_DEFINES_FILE) as f:
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p4_externs = json.load(f)
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return p4_externs
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def get_address(reg_name, index):
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global PX_EXTERNS
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if reg_name not in P4_EXTERNS.keys() and 'control_width' not in P4_EXTERNS[reg_name].keys() and P4_EXTERNS[reg_name]['control_width'] > 0:
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print >> sys.stderr, "ERROR: {0} is not a recognized register name".format(reg_name)
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return ERROR_CODE
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addressable_depth = 2**P4_EXTERNS[reg_name]['control_width']
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if index >= addressable_depth or index < 0:
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print >> sys.stderr, "ERROR: cannot access {0}[{1}], index out of bounds".format(reg_name, index)
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return ERROR_CODE
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return P4_EXTERNS[reg_name]['base_addr'] + index
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# P4_EXTERNS is indexed by prefix_name
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P4_EXTERNS = read_extern_defines()
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#####################
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### API Functions ###
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#####################
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def reg_read(reg_name, index):
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address = get_address(reg_name, index)
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if address == ERROR_CODE:
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return ERROR_CODE
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# print "reading address : {0}".format(hex(address))
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return libsume.regread(address)
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def reg_write(reg_name, index, val):
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address = get_address(reg_name, index)
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if address == ERROR_CODE:
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return ERROR_CODE
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# print "writing address : {0}".format(hex(address))
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return libsume.regwrite(address, val)
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285
netpfga/minip4/sw/CLI/p4_tables_api.py
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285
netpfga/minip4/sw/CLI/p4_tables_api.py
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#!/usr/bin/env python
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#
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# Copyright (c) 2017 Stephen Ibanez
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# All rights reserved.
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#
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# This software was developed by Stanford University and the University of Cambridge Computer Laboratory
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# under National Science Foundation under Grant No. CNS-0855268,
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# the University of Cambridge Computer Laboratory under EPSRC INTERNET Project EP/H040536/1 and
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# by the University of Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249 ("MRC2"),
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# as part of the DARPA MRC research programme.
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#
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# @NETFPGA_LICENSE_HEADER_START@
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#
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# Licensed to NetFPGA C.I.C. (NetFPGA) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. NetFPGA licenses this
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# file to you under the NetFPGA Hardware-Software License, Version 1.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at:
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#
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# http://www.netfpga-cic.org
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#
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# Unless required by applicable law or agreed to in writing, Work distributed
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# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations under the License.
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#
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# @NETFPGA_LICENSE_HEADER_END@
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#
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from NFTest import *
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import sys, os, re, json
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from fcntl import *
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from ctypes import *
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SWITCH_INFO_FILE = os.path.expandvars("$P4_PROJECT_DIR/src/.sdnet_switch_info.dat")
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# sets PX_TABLES
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import p4_px_tables
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p4_px_tables.make_px_tables(SWITCH_INFO_FILE)
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PX_CAM_TABLES = {}
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PX_TCAM_TABLES = {}
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PX_LPM_TABLES = {}
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def split_px_tables():
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for name, table in p4_px_tables.PX_TABLES.items():
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if table.info['match_type'] == 'EM':
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PX_CAM_TABLES[name] = table
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elif table.info['match_type'] == 'TCAM':
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PX_TCAM_TABLES[name] = table
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elif table.info['match_type'] == 'LPM':
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PX_LPM_TABLES[name] = table
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split_px_tables()
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if (len(PX_CAM_TABLES) > 0):
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print "loading libcam.."
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libcam=cdll.LoadLibrary(os.path.expandvars('$P4_PROJECT_DIR/sw/CLI/libcam.so'))
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# argtypes for the functions called from C
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libcam.cam_read_entry.argtypes = [c_uint, c_char_p, c_char_p, c_char_p]
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libcam.cam_add_entry.argtypes = [c_uint, c_char_p, c_char_p]
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libcam.cam_delete_entry.argtypes = [c_uint, c_char_p]
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libcam.cam_error_decode.argtypes = [c_int]
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libcam.cam_error_decode.restype = c_char_p
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libcam.cam_get_size.argtypes = [c_uint]
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libcam.cam_get_size.restype = c_uint
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if (len(PX_TCAM_TABLES) > 0):
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print "loading libtcam.."
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libtcam=cdll.LoadLibrary(os.path.expandvars('$P4_PROJECT_DIR/sw/CLI/libtcam.so'))
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# argtypes for the functions called from C
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libtcam.tcam_clean.argtypes = [c_uint]
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libtcam.tcam_get_addr_size.argtypes = []
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libtcam.tcam_set_log_level.argtypes = [c_uint, c_uint]
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libtcam.tcam_write_entry.argtypes = [c_uint, c_uint, c_char_p, c_char_p, c_char_p]
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libtcam.tcam_erase_entry.argtypes = [c_uint, c_uint]
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libtcam.tcam_verify_entry.argtypes = [c_uint, c_uint, c_char_p, c_char_p, c_char_p]
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libtcam.tcam_verify_entry.restype = c_uint
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libtcam.tcam_error_decode.argtypes = [c_int]
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libtcam.tcam_error_decode.restype = c_char_p
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if (len(PX_LPM_TABLES) > 0):
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print "loading liblpm.."
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liblpm=cdll.LoadLibrary(os.path.expandvars('$P4_PROJECT_DIR/sw/CLI/liblpm.so'))
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# argtypes for the functions called from C
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liblpm.lpm_get_addr_size.argtypes = []
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liblpm.lpm_set_log_level.argtypes = [c_uint, c_uint]
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liblpm.lpm_load_dataset.argtypes = [c_uint, c_char_p]
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liblpm.lpm_verify_dataset.argtypes = [c_uint, c_char_p]
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liblpm.lpm_set_active_lookup_bank.argtypes = [c_uint, c_uint]
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liblpm.lpm_error_decode.argtypes = [c_int]
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liblpm.lpm_error_decode.restype = c_char_p
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TABLE_DEFINES_FILE = os.path.expandvars("$P4_PROJECT_DIR/sw/CLI/SimpleSumeSwitch_table_defines.json")
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########################
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### Helper Functions ###
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########################
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"""
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def the SimpleSumeSwitch_table_defines.json file
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"""
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def read_table_defines():
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with open(TABLE_DEFINES_FILE) as f:
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tables_dict = json.load(f)
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return tables_dict
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p4_tables_info = read_table_defines()
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"""
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Check if table_name is a valid CAM table
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"""
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def check_valid_cam_table_name(table_name):
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if (table_name not in PX_CAM_TABLES.keys() and table_name not in p4_tables_info['EM'].keys()):
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print >> sys.stderr, "ERROR: {0} is not a recognized CAM table name".format(table_name)
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return False
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return True
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"""
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Check if table_name is a valid TCAM table
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"""
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def check_valid_tcam_table_name(table_name):
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if (table_name not in PX_TCAM_TABLES.keys() and table_name not in p4_tables_info['TCAM'].keys()):
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print >> sys.stderr, "ERROR: {0} is not a recognized TCAM table name".format(table_name)
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return False
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return True
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"""
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Check if table_name is a valid LPM table
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"""
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def check_valid_lpm_table_name(table_name):
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if (table_name not in PX_LPM_TABLES.keys() and table_name not in p4_tables_info['LPM'].keys()):
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print >> sys.stderr, "ERROR: {0} is not a recognized LPM table name".format(table_name)
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return False
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return True
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#########################
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### CAM API Functions ###
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#########################
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def table_cam_read_entry(table_name, keys):
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if not check_valid_cam_table_name(table_name):
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return "NA", "NA"
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tableID = int(p4_tables_info['EM'][table_name]['tableID'])
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key = PX_CAM_TABLES[table_name].hexify_key(keys)
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hex_key_buf = create_string_buffer("{:X}".format(key))
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value = create_string_buffer(1024) # TODO: Fix this ... Must be large enough to hold entire value
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found = create_string_buffer(10) # Should only need to hold "True" or "False"
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rc = libcam.cam_read_entry(tableID, hex_key_buf, value, found)
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print libcam.cam_error_decode(rc)
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return found.value, value.value
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def table_cam_add_entry(table_name, keys, action_name, action_data):
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if not check_valid_cam_table_name(table_name):
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return
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tableID = int(p4_tables_info['EM'][table_name]['tableID'])
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key = PX_CAM_TABLES[table_name].hexify_key(keys)
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value = PX_CAM_TABLES[table_name].hexify_value(action_name, action_data)
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rc = libcam.cam_add_entry(tableID, "{:X}".format(key), "{:X}".format(value))
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print libcam.cam_error_decode(rc)
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def table_cam_delete_entry(table_name, keys):
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if not check_valid_cam_table_name(table_name):
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return
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tableID = int(p4_tables_info['EM'][table_name]['tableID'])
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key = PX_CAM_TABLES[table_name].hexify_key(keys)
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rc = libcam.cam_delete_entry(tableID, "{:X}".format(key))
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print libcam.cam_error_decode(rc)
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def table_cam_get_size(table_name):
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if not check_valid_cam_table_name(table_name):
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return 0
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tableID = int(p4_tables_info['EM'][table_name]['tableID'])
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return libcam.cam_get_size(tableID)
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##########################
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### TCAM API Functions ###
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##########################
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def table_tcam_clean(table_name):
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if not check_valid_tcam_table_name(table_name):
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return
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tableID = int(p4_tables_info['TCAM'][table_name]['tableID'])
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rc = libtcam.tcam_clean(tableID)
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print libtcam.tcam_error_decode(rc)
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def table_tcam_get_addr_size():
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return libtcam.tcam_get_addr_size()
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def table_tcam_set_log_level(table_name, msg_level):
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if not check_valid_tcam_table_name(table_name):
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return
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tableID = int(p4_tables_info['TCAM'][table_name]['tableID'])
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rc = libtcam.tcam_set_log_level(tableID, msg_level)
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print libtcam.tcam_error_decode(rc)
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def table_tcam_write_entry(table_name, addr, keys, masks, action_name, action_data):
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if not check_valid_tcam_table_name(table_name):
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return
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tableID = int(p4_tables_info['TCAM'][table_name]['tableID'])
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mask = PX_TCAM_TABLES[table_name].hexify_mask(masks)
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key = PX_TCAM_TABLES[table_name].hexify_key(keys)
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value = PX_TCAM_TABLES[table_name].hexify_value(action_name, action_data)
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rc = libtcam.tcam_write_entry(tableID, addr, "{:X}".format(key), "{:X}".format(mask), "{:X}".format(value))
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print libtcam.tcam_error_decode(rc)
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def table_tcam_erase_entry(table_name, addr):
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if not check_valid_tcam_table_name(table_name):
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return
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tableID = int(p4_tables_info['TCAM'][table_name]['tableID'])
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rc = libtcam.tcam_erase_entry(tableID, addr)
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print libtcam.tcam_error_decode(rc)
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def table_tcam_verify_entry(table_name, addr, keys, masks, action_name, action_data):
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if not check_valid_tcam_table_name(table_name):
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return
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tableID = int(p4_tables_info['TCAM'][table_name]['tableID'])
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mask = PX_TCAM_TABLES[table_name].hexify_mask(masks)
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key = PX_TCAM_TABLES[table_name].hexify_key(keys)
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value = PX_TCAM_TABLES[table_name].hexify_value(action_name, action_data)
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return libtcam.tcam_verify_entry(tableID, addr, "{:X}".format(key), "{:X}".format(mask), "{:X}".format(value))
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def table_tcam_error_decode(error):
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return libtcam.tcam_error_decode(error)
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#########################
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### LPM API Functions ###
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#########################
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def table_lpm_get_addr_size():
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return liblpm.lpm_get_addr_size()
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def table_lpm_set_log_level(table_name):
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if not check_valid_lpm_table_name(table_name):
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return
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tableID = int(p4_tables_info['LPM'][table_name]['tableID'])
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rc = liblpm.lpm_set_log_level(tableID, msg_level)
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print liblpm.lpm_error_decode(rc)
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def table_lpm_load_dataset(table_name, filename):
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if not check_valid_lpm_table_name(table_name):
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return
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tableID = int(p4_tables_info['LPM'][table_name]['tableID'])
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rc = liblpm.lpm_load_dataset(tableID, filename)
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print liblpm.lpm_error_decode(rc)
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def table_lpm_verify_dataset(table_name, filename):
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if not check_valid_lpm_table_name(table_name):
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return
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tableID = int(p4_tables_info['LPM'][table_name]['tableID'])
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return liblpm.lpm_verify_dataset(tableID, filename)
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def table_lpm_set_active_lookup_bank(table_name, bank):
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if not check_valid_lpm_table_name(table_name):
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return
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tableID = int(p4_tables_info['LPM'][table_name]['tableID'])
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rc = liblpm.lpm_set_active_lookup_bank(tableID, bank)
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print liblpm.lpm_error_decode(rc)
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def table_lpm_error_decode(error):
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return liblpm.lpm_error_decode(error)
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