aboutsummaryrefslogtreecommitdiffstats
path: root/test/vpp_sub_interface.py
diff options
context:
space:
mode:
authorDamjan Marion <damarion@cisco.com>2016-11-24 22:20:05 +0100
committerNeale Ranns <nranns@cisco.com>2016-11-25 09:27:31 +0000
commit30230dd7f854e77008b257c8be1de648e473338e (patch)
tree53e99fc7b066593ae9672cfbb80511362c53b450 /test/vpp_sub_interface.py
parent23a7412bda2c14b21deda66bc5555c9ee680dec8 (diff)
l2: fix latency issue casued by unnecesary read of previous cacheline
In majority of cases ethernet header sits at the beggining of cacheline. Reading (dst_mac - 2) into 64 bit register is much more expensive than doing simple bitwise shift, specially if previous cacheline is not prefetched. Change-Id: I35e53eae735098fb917a87c307e60a87e76e460f Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'test/vpp_sub_interface.py')
0 files changed, 0 insertions, 0 deletions
127'>127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 
--[[
/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
]]

-- Experimental prototype CLI using API to VPP, with tab completion
--
-- Written by Andrew Yourtchenko (ayourtch@cisco.com) 2010,2016
--

vpp = require "vpp-lapi"


local dotdotdot = "..."

-- First the "readline" routine

readln = {
split = function(str, pat)
  local t = {}  -- NOTE: use {n = 0} in Lua-5.0
  local fpat = "(.-)" .. pat
  local last_end = 1
  if str then
    local s, e, cap = str:find(fpat, 1)
    while s do
      if s ~= 1 or cap ~= "" then
        table.insert(t,cap)
      end
      last_end = e+1
      s, e, cap = str:find(fpat, last_end)
    end
    if last_end <= #str then
      cap = str:sub(last_end)
      table.insert(t, cap)
    end
  end
  return t
end,

reader = function()
  local rl = {}

  rl.init = function()
    os.execute("stty -icanon min 1 -echo")
    rl.rawmode = true
  end

  rl.done = function()
    os.execute("stty icanon echo")
    rl.rawmode = false
  end

  rl.prompt = ">"
  rl.history = { "" }
  rl.history_index = 1
  rl.history_length = 1

  rl.hide_cmd = function()
    local bs = string.char(8) .. " " .. string.char(8)
    for i = 1, #rl.command do
      io.stdout:write(bs)
    end
  end

  rl.show_cmd = function()
    if rl.command then
      io.stdout:write(rl.command)
    end
  end

  rl.store_history = function(cmd)
    if cmd == "" then
      return
    end
    rl.history[rl.history_length] = cmd
    rl.history_length = rl.history_length + 1
    rl.history_index = rl.history_length
    rl.history[rl.history_length] = ""
  end

  rl.readln = function()
    local done = false
    local need_prompt = true
    rl.command = ""

    if not rl.rawmode then
      rl.init()
    end

    while not done do
      if need_prompt then
        io.stdout:write(rl.prompt)
	io.stdout:write(rl.command)
        need_prompt = false
      end

      local ch = io.stdin:read(1)
      if ch:byte(1) == 27 then
        -- CONTROL
        local ch2 = io.stdin:read(1)
        -- arrows
        if ch2:byte(1) == 91 then
          local ch3 = io.stdin:read(1)
          local b = ch3:byte(1)
          if b == 65 then
            ch = "UP"
          elseif b == 66 then
            ch = "DOWN"
          elseif b == 67 then
            ch = "RIGHT"
          elseif b == 68 then
            ch = "LEFT"
          end
          -- print("Byte: " .. ch3:byte(1))
          -- if ch3:byte(1)
        end
      end

      if ch == "?" then
        io.stdout:write(ch)
        io.stdout:write("\n")
        if rl.help then
          rl.help(rl)
        end
        need_prompt = true
      elseif ch == "\t" then
        if rl.tab_complete then
          rl.tab_complete(rl)
        end
        io.stdout:write("\n")
        need_prompt = true
      elseif ch == "\n" then
        io.stdout:write(ch)
        done = true
      elseif ch == "\004" then
        io.stdout:write("\n")
        rl.command = nil
	done = true
      elseif ch == string.char(127) then
        if rl.command ~= "" then
          io.stdout:write(string.char(8) .. " " .. string.char(8))
          rl.command = string.sub(rl.command, 1, -2)
        end
      elseif #ch > 1 then
        -- control char
        if ch == "UP" then
          rl.hide_cmd()
          if rl.history_index == #rl.history then
            rl.history[rl.history_index] = rl.command
          end
          if rl.history_index > 1 then
            rl.history_index = rl.history_index - 1
            rl.command = rl.history[rl.history_index]
          end
          rl.show_cmd()
        elseif ch == "DOWN" then
          rl.hide_cmd()
          if rl.history_index < rl.history_length then
            rl.history_index = rl.history_index + 1
            rl.command = rl.history[rl.history_index]
          end
          rl.show_cmd()
        end
      else
        io.stdout:write(ch)
        rl.command = rl.command .. ch
      end
    end
    if rl.command then
      rl.store_history(rl.command)
    end
    return rl.command
  end
  return rl
end

}

--[[

r = reader()

local done = false

while not done do
  local cmd = r.readln()
  print("Command: " .. tostring(cmd))
  if not cmd or cmd == "quit" then
    done = true
  end
end

r.done()

]]

--------- MDS show tech parser

local print_section = nil
local list_sections = false

local curr_section = "---"
local curr_parser = nil

-- by default operate in batch mode
local batch_mode = true

local db = {}
local device = {}
device.output = {}
local seen_section = {}

function start_collection(name)
  device = {}
  seen_section = {}
end

function print_error(errmsg)
  print("@#$:" .. errmsg)
end

function keys(tbl)
  local t = {}
  for k, v in pairs(tbl) do
    table.insert(t, k)
  end
  return t
end

function tset (parent, ...)

  -- print ('set', ...)

  local len = select ('#', ...)
  local key, value = select (len-1, ...)
  local cutpoint, cutkey

  for i=1,len-2 do

    local key = select (i, ...)
    local child = parent[key]

    if value == nil then
      if child == nil then  return
      elseif next (child, next (child)) then  cutpoint = nil  cutkey = nil
      elseif cutpoint == nil then  cutpoint = parent  cutkey = key  end

    elseif child == nil then  child = {}  parent[key] = child  end

    parent = child
    end

  if value == nil and cutpoint then  cutpoint[cutkey] = nil
  else  parent[key] = value  return value  end
  end


function tget (parent, ...)
  local len = select ('#', ...)
  for i=1,len do
    parent = parent[select (i, ...)]
    if parent == nil then  break  end
    end
  return parent
  end


local pager_lines = 23
local pager_printed = 0
local pager_skipping = false
local pager_filter_pipe = nil

function pager_reset()
  pager_printed = 0
  pager_skipping = false
  if pager_filter_pipe then
    pager_filter_pipe:close()
    pager_filter_pipe = nil
  end
end


function print_more()
  io.stdout:write(" --More-- ")
end

function print_nomore()
  local bs = string.char(8)
  local bs10 = bs ..  bs ..  bs ..  bs ..  bs ..  bs ..  bs ..  bs ..  bs ..  bs
  io.stdout:write(bs10 .. "          " .. bs10)
end

function print_line(txt)
  if pager_filter_pipe then
    pager_filter_pipe:write(txt .. "\n")
    return
  end
  if pager_printed >= pager_lines then
    print_more()
    local ch = io.stdin:read(1)
    if ch == " " then
      pager_printed = 0
    elseif ch == "\n" then
      pager_printed = pager_printed - 1
    elseif ch == "q" then
      pager_printed = 0
      pager_skipping = true
    end
    print_nomore()
  end
  if not pager_skipping then
    print(txt)
    pager_printed = pager_printed + 1
  else
    -- skip printing
  end
end

function paged_write(text)
  local t = readln.split(text, "[\n]")
  if string.sub(text, -1) == "\n" then
    table.insert(t, "")
  end
  for i, v in ipairs(t) do
    if i < #t then
      print_line(v)
    else
      if pager_filter_pipe then
        pager_filter_pipe:write(v)
      else
        io.stdout:write(v)
      end
    end
  end
end





function get_choices(tbl, key)
  local res = {}
  for k, v in pairs(tbl) do
    if string.sub(k, 1, #key) == key then
      table.insert(res, k)
    elseif 0 < #key and dotdotdot == k then
      table.insert(res, k)
    end
  end
  return res
end

function get_exact_choice(choices, val)
  local exact_idx = nil
  local substr_idx = nil
  local substr_seen = false

  if #choices == 1 then
    if choices[1] == dotdotdot then
      return 1
    elseif string.sub(choices[1], 1, #val) == val then
      return 1
    else
      return nil
    end
  else
    for i, v in ipairs(choices) do
      if v == val then
        exact_idx = i
        substr_seen = true
      elseif choices[i] ~= dotdotdot and string.sub(choices[i], 1, #val) == val then
        if substr_seen then
          substr_idx = nil
        else
          substr_idx = i
          substr_seen = true
        end
      elseif choices[i] == dotdotdot then
        if substr_seen then
          substr_idx = nil
        else
          substr_idx = i
          substr_seen = true
        end
      end
    end
  end
  return exact_idx or substr_idx
end

function device_cli_help(rl)
  local key = readln.split(rl.command, "[ ]+")
  local tree = rl.tree
  local keylen = #key
  local fullcmd = ""
  local error = false
  local terse = true

  if ((#rl.command >= 1) and (string.sub(rl.command, -1) == " ")) or (#rl.command == 0) then
    table.insert(key, "")
    terse = false
  end

  for i, v in ipairs(key) do
    local choices = get_choices(tree, v)
    local idx = get_exact_choice(choices, v)
    if idx then
      local choice = choices[idx]
      tree = tree[choice]
      fullcmd = fullcmd .. choice .. " "
    else
      if i < #key then
        error = true
      end
    end

    if i == #key and not error then
      for j, w in ipairs(choices) do
        if terse then
          paged_write(w .. "\t")
        else
          paged_write("  " .. w .. "\n")
        end
      end
      paged_write("\n")
      if terse then
        paged_write(" \n")
      end
    end
  end
  pager_reset()
end

function device_cli_tab_complete(rl)
  local key = readln.split(rl.command, "[ ]+")
  local tree = rl.tree
  local keylen = #key
  local fullcmd = ""
  local error = false

  for i, v in ipairs(key) do
    local choices = get_choices(tree, v)
    local idx = get_exact_choice(choices, v)
    if idx and choices[idx] ~= dotdotdot then
      local choice = choices[idx]
      tree = tree[choice]
      -- print("level " .. i .. " '" .. choice .. "'")
      fullcmd = fullcmd .. choice .. " "
    else
      -- print("level " .. i .. " : " .. table.concat(choices, " ") .. " ")
      error = true
    end
  end
  if not error then
    rl.command = fullcmd
  else
    -- print("\n\nerror\n")
  end
  pager_reset()
end

function device_cli_exec(rl)

  local cmd_nopipe = rl.command
  local cmd_pipe = nil

  local pipe1, pipe2 = string.find(rl.command, "[|]")
  if pipe1 then
    cmd_nopipe = string.sub(rl.command, 1, pipe1-1)
    cmd_pipe = string.sub(rl.command, pipe2+1, -1)
  end

  local key = readln.split(cmd_nopipe .. " <cr>", "[ ]+")
  local tree = rl.tree
  local keylen = #key
  local fullcmd = ""
  local error = false
  local func = nil

  if cmd_pipe then
    pager_filter_pipe = io.popen(cmd_pipe, "w")
  end


  rl.choices = {}

  for i, v in ipairs(key) do
    local choices = get_choices(tree, v)
    local idx = get_exact_choice(choices, v)
    if idx then
      local choice = choices[idx]
      if i == #key then
        func = tree[choice]
      else
        if choice == dotdotdot then
          -- keep the tree the same, update the choice value to match the input string
          choices[idx] = v
          choice = v
        else
          tree = tree[choice]
        end
      end
      -- print("level " .. i .. " '" .. choice .. "'")
      table.insert(rl.choices, choice)
    else
      -- print("level " .. i .. " : " .. table.concat(choices, " ") .. " ")
      error = true
      return nil
    end
  end
  return func
end

function populate_tree(commands)
  local tree = {}

  for k, v in pairs(commands) do
    local key = readln.split(k .. " <cr>", "[ ]+")
    local xtree = tree
    for i, kk in ipairs(key) do
      if i == 1 and kk == "sh" then
        kk = "show"
      end
      if i == #key then
        if type(v) == "function" then
          xtree[kk] = v
        else
          xtree[kk] = function(rl) paged_write(table.concat(v, "\n") .. "\n") end
        end
      else
        if not xtree[kk] then
          xtree[kk] = {}
        end
        xtree = xtree[kk]
      end
    end
  end
  return tree
end

function trim (s)
  return (string.gsub(s, "^%s*(.-)%s*$", "%1"))
end


function init_vpp(vpp)
  local root_dir = "/home/ubuntu/vpp"
  local pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so"

  vpp:init({ pneum_path = pneum_path })

  vpp:init({ pneum_path = pneum_path })
  vpp:json_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api.json")



  vpp:connect("lua_cli")
end

function run_cli(vpp, cli)
  local reply = vpp:api_call("cli_inband", { cmd = cli })
  if reply and #reply == 1 then
    local rep = reply[1]
    if 0 == rep.retval then
      return rep.reply
    else
      return "XXXXXLUACLI: API RETVAL ERROR : " .. tostring(rep.retval)
    end
  else
    return "XXXXXLUACLI ERROR, RAW REPLY: " .. vpp.dump(reply)
  end
end


function toprintablestring(s)
  if type(s) == "string" then
    return "\n"..vpp.hex_dump(s)
  else
    return tostring(s)
  end
end

function interactive_cli(r)
  while not done do
    pager_reset()
    local cmd = r.readln()
    if not cmd then
      done = true
    elseif cmd == "quit" or cmd == "exit" then
      done = true
    else
      local func = device_cli_exec(r)
      if func then
	func(r)
      else
	if trim(cmd) == "" then
	else
	  for i = 1, #r.prompt do
	    paged_write(" ")
	  end
	  paged_write("^\n% Invalid input detected at '^' marker.\n\n")
	end
      end
    end
  end
end

device = {}
device.output = {}

init_vpp(vpp)
cmds_str = run_cli(vpp, "?")
vpp_cmds = readln.split(cmds_str, "\n")
vpp_clis = {}

for linenum, line in ipairs(vpp_cmds) do
  local m,h = string.match(line, "^  (.-)  (.*)$")
  if m and #m > 0 then
    table.insert(vpp_clis, m)
    device.output["vpp debug cli " .. m] = function(rl)
      -- print("ARBITRARY CLI" .. vpp.dump(rl.choices))
      print("LUACLI command: " .. table.concat(rl.choices, " "))
      local sub = {}
      --
      for i=4, #rl.choices -1 do
        table.insert(sub, rl.choices[i])
      end
      local cli = table.concat(sub, " ")
      print("Running CLI: " .. tostring(cli))
      paged_write(run_cli(vpp, cli))
    end
    device.output["vpp debug cli " .. m .. " " .. dotdotdot] = function(rl)
      print("ARGH")
    end

    local ret = run_cli(vpp, "help " .. m)
    device.output["help vpp debug cli " .. m] = { ret }
  end
end

for linenum, line in ipairs(vpp_clis) do
  -- print(line, ret)
end

for msgnum, msgname in pairs(vpp.msg_number_to_name) do
  local cli, numspaces = string.gsub(msgname, "_", " ")
  device.output["call " .. cli .. " " .. dotdotdot] = function(rl)
    print("ARGH")
  end
  device.output["call " .. cli] = function(rl)
    print("LUACLI command: " .. table.concat(rl.choices, " "))
    print("Running API: " .. msgname) -- vpp.dump(rl.choices))
    local out = {}
    local args = {}
    local ntaken = 0
    local argname = ""
    for i=(1+1+numspaces+1), #rl.choices-1 do
      -- print(i, rl.choices[i])
      if ntaken > 0 then
        ntaken = ntaken -1
      else
        local fieldname = rl.choices[i]
        local field = vpp.msg_name_to_fields[msgname][fieldname]
        if field then
          local s = rl.choices[i+1]
          s=s:gsub("\\x(%x%x)",function (x) return string.char(tonumber(x,16)) end)
          args[fieldname] = s
          ntaken = 1
        end
      end
    end
    -- print("ARGS: ", vpp.dump(args))
    local ret = vpp:api_call(msgname, args)
    for i, reply in ipairs(ret) do
      table.insert(out, "=================== Entry #" .. tostring(i))
      for k, v in pairs(reply) do
        table.insert(out, "   " .. tostring(k) .. " : " .. toprintablestring(v))
      end
    end
    -- paged_write(vpp.dump(ret) .. "\n\n")
    paged_write(table.concat(out, "\n").."\n\n")
  end
  device.output["call " .. cli .. " help"] = function(rl)
    local out = {}
    for k, v in pairs(vpp.msg_name_to_fields[msgname]) do
      table.insert(out, tostring(k) .. " : " .. v["ctype"] .. " ; " .. tostring(vpp.dump(v)) )
    end
    -- paged_write(vpp.dump(vpp.msg_name_to_fields[msgname]) .. "\n\n")
    paged_write(table.concat(out, "\n").."\n\n")
  end
-- vpp.msg_name_to_number = {}
end



local r = readln.reader()
local done = false

r.prompt = "VPP(luaCLI)#"

r.help = device_cli_help
r.tab_complete = device_cli_tab_complete
print("===== CLI view, use ^D to end =====")

r.tree = populate_tree(device.output)
-- readln.pretty("xxxx", r.tree)


for idx, an_arg in ipairs(arg) do
  local fname = an_arg
  if fname == "-i" then
    pager_lines = 23
    interactive_cli(r)
  else
    pager_lines = 100000000
    for line in io.lines(fname) do
      r.command = line
      local func = device_cli_exec(r)
      if func then
	func(r)
      end
    end
  end
end

if #arg == 0 then
  print("You should specify '-i' as an argument for the interactive session,")
  print("but with no other sources of commands, we start interactive session now anyway")
   interactive_cli(r)
end

vpp:disconnect()
r.done()