OpenWrt – Blame information for rev 4
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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4 | office | 1 | BEGIN { |
| 2 | dmax=100 |
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| 3 | if (!(linespeed > 0)) linespeed = 128 |
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| 4 | FS=":" |
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| 5 | n = 0 |
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| 6 | } |
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| 7 | |||
| 8 | ($1 != "") { |
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| 9 | n++ |
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| 10 | class[n] = $1 |
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| 11 | prio[n] = $2 |
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| 12 | avgrate[n] = ($3 * linespeed / 100) |
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| 13 | pktsize[n] = $4 |
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| 14 | delay[n] = $5 |
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| 15 | maxrate[n] = ($6 * linespeed / 100) |
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| 16 | qdisc[n] = $7 |
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| 17 | filter[n] = $8 |
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| 18 | } |
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| 19 | |||
| 20 | END { |
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| 21 | allocated = 0 |
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| 22 | maxdelay = 0 |
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| 23 | |||
| 24 | for (i = 1; i <= n; i++) { |
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| 25 | # set defaults |
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| 26 | if (!(pktsize[i] > 0)) pktsize[i] = 1500 |
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| 27 | if (!(prio[i] > 0)) prio[i] = 1 |
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| 28 | |||
| 29 | allocated += avgrate[i] |
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| 30 | sum_prio += prio[i] |
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| 31 | if ((avgrate[i] > 0) && !(delay[i] > 0)) { |
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| 32 | sum_rtprio += prio[i] |
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| 33 | } |
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| 34 | } |
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| 35 | |||
| 36 | # allocation of m1 in rt classes: |
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| 37 | # sum(d * m1) must not exceed dmax * (linespeed - allocated) |
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| 38 | dmax = 0 |
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| 39 | for (i = 1; i <= n; i++) { |
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| 40 | if (avgrate[i] > 0) { |
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| 41 | rtm2[i] = avgrate[i] |
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| 42 | if (delay[i] > 0) { |
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| 43 | d[i] = delay[i] |
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| 44 | } else { |
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| 45 | d[i] = 2 * pktsize[i] * 1000 / (linespeed * 1024) |
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| 46 | if (d[i] > dmax) dmax = d[i] |
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| 47 | } |
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| 48 | } |
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| 49 | } |
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| 50 | |||
| 51 | ds_avail = dmax * (linespeed - allocated) |
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| 52 | for (i = 1; i <= n; i++) { |
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| 53 | lsm1[i] = 0 |
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| 54 | rtm1[i] = 0 |
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| 55 | lsm2[i] = linespeed * prio[i] / sum_prio |
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| 56 | if ((avgrate[i] > 0) && (d[i] > 0)) { |
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| 57 | if (!(delay[i] > 0)) { |
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| 58 | ds = ds_avail * prio[i] / sum_rtprio |
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| 59 | ds_avail -= ds |
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| 60 | rtm1[i] = rtm2[i] + ds/d[i] |
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| 61 | } |
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| 62 | lsm1[i] = rtm1[i] |
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| 63 | } |
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| 64 | else { |
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| 65 | d[i] = 0 |
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| 66 | } |
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| 67 | } |
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| 68 | |||
| 69 | # main qdisc |
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| 70 | for (i = 1; i <= n; i++) { |
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| 71 | printf "tc class add dev "device" parent 1:1 classid 1:"class[i]"0 hfsc" |
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| 72 | if (rtm1[i] > 0) { |
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| 73 | printf " rt m1 " int(rtm1[i]) "kbit d " int(d[i] * 1000) "us m2 " int(rtm2[i])"kbit" |
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| 74 | } |
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| 75 | printf " ls m1 " int(lsm1[i]) "kbit d " int(d[i] * 1000) "us m2 " int(lsm2[i]) "kbit" |
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| 76 | print " ul rate " int(maxrate[i]) "kbit" |
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| 77 | } |
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| 78 | |||
| 79 | # leaf qdisc |
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| 80 | avpkt = 1200 |
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| 81 | for (i = 1; i <= n; i++) { |
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| 82 | print "tc qdisc add dev "device" parent 1:"class[i]"0 handle "class[i]"00: fq_codel limit 800 quantum 300 noecn" |
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| 83 | } |
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| 84 | |||
| 85 | # filter rule |
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| 86 | for (i = 1; i <= n; i++) { |
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| 87 | filter_cmd = "tc filter add dev "device" parent 1: prio %d handle %s fw flowid 1:%d0\n"; |
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| 88 | if (direction == "up") { |
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| 89 | filter_1 = sprintf("0x%x0/0xf0", class[i]) |
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| 90 | filter_2 = sprintf("0x0%x/0x0f", class[i]) |
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| 91 | } else { |
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| 92 | filter_1 = sprintf("0x0%x/0x0f", class[i]) |
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| 93 | filter_2 = sprintf("0x%x0/0xf0", class[i]) |
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| 94 | } |
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| 95 | |||
| 96 | printf filter_cmd, class[i] * 2, filter_1, class[i] |
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| 97 | printf filter_cmd, class[i] * 2 + 1, filter_2, class[i] |
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| 98 | |||
| 99 | filterc=1 |
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| 100 | if (filter[i] != "") { |
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| 101 | print " tc filter add dev "device" parent "class[i]"00: handle "filterc"0 "filter[i] |
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| 102 | filterc=filterc+1 |
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| 103 | } |
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| 104 | } |
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| 105 | } |
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| 106 |