diff options
Diffstat (limited to 'package/iproute2/patches/003-iproute2-htb_overhead.patch')
| -rw-r--r-- | package/iproute2/patches/003-iproute2-htb_overhead.patch | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/package/iproute2/patches/003-iproute2-htb_overhead.patch b/package/iproute2/patches/003-iproute2-htb_overhead.patch new file mode 100644 index 0000000000..77ab983835 --- /dev/null +++ b/package/iproute2/patches/003-iproute2-htb_overhead.patch @@ -0,0 +1,96 @@ +--- iproute2-2.6.11-050330.new/tc/q_htb.c Sun May 12 22:18:27 2002 ++++ iproute2-2.6.11-050330.new/tc/q_htb.c Sat Oct 18 00:05:18 2003 +@@ -34,10 +34,14 @@ + " default minor id of class to which unclassified packets are sent {0}\n" + " r2q DRR quantums are computed as rate in Bps/r2q {10}\n" + " debug string of 16 numbers each 0-3 {0}\n\n" +- "... class add ... htb rate R1 burst B1 [prio P] [slot S] [pslot PS]\n" ++ "... class add ... htb rate R1 [burst B1] [mpu B] [overhead O]\n" ++ " [prio P] [slot S] [pslot PS]\n" + " [ceil R2] [cburst B2] [mtu MTU] [quantum Q]\n" + " rate rate allocated to this class (class can still borrow)\n" + " burst max bytes burst which can be accumulated during idle period {computed}\n" ++ " mpu minimum packet size used in rate computations\n" ++ " overhead per-packet size overhead used in rate computations\n" ++ + " ceil definite upper class rate (no borrows) {rate}\n" + " cburst burst but for ceil {computed}\n" + " mtu max packet size we create rate map for {1600}\n" +@@ -102,7 +106,9 @@ + struct tc_htb_opt opt; + __u32 rtab[256],ctab[256]; + unsigned buffer=0,cbuffer=0; +- int cell_log=-1,ccell_log = -1,mtu; ++ int cell_log=-1,ccell_log = -1; ++ unsigned mtu, mpu; ++ unsigned char mpu8 = 0, overhead = 0; + struct rtattr *tail; + + memset(&opt, 0, sizeof(opt)); mtu = 1600; /* eth packet len */ +@@ -119,6 +125,16 @@ + if (get_u32(&mtu, *argv, 10)) { + explain1("mtu"); return -1; + } ++ } else if (matches(*argv, "mpu") == 0) { ++ NEXT_ARG(); ++ if (get_u8(&mpu8, *argv, 10)) { ++ explain1("mpu"); return -1; ++ } ++ } else if (matches(*argv, "overhead") == 0) { ++ NEXT_ARG(); ++ if (get_u8(&overhead, *argv, 10)) { ++ explain1("overhead"); return -1; ++ } + } else if (matches(*argv, "quantum") == 0) { + NEXT_ARG(); + if (get_u32(&opt.quantum, *argv, 10)) { +@@ -190,14 +206,18 @@ + if (!buffer) buffer = opt.rate.rate / HZ + mtu; + if (!cbuffer) cbuffer = opt.ceil.rate / HZ + mtu; + +- if ((cell_log = tc_calc_rtable(opt.rate.rate, rtab, cell_log, mtu, 0)) < 0) { ++/* encode overhead and mpu, 8 bits each, into lower 16 bits */ ++ mpu = (unsigned)mpu8 | (unsigned)overhead << 8; ++ opt.ceil.mpu = mpu; opt.rate.mpu = mpu; ++ ++ if ((cell_log = tc_calc_rtable(opt.rate.rate, rtab, cell_log, mtu, mpu)) < 0) { + fprintf(stderr, "htb: failed to calculate rate table.\n"); + return -1; + } + opt.buffer = tc_calc_xmittime(opt.rate.rate, buffer); + opt.rate.cell_log = cell_log; + +- if ((ccell_log = tc_calc_rtable(opt.ceil.rate, ctab, cell_log, mtu, 0)) < 0) { ++ if ((ccell_log = tc_calc_rtable(opt.ceil.rate, ctab, cell_log, mtu, mpu)) < 0) { + fprintf(stderr, "htb: failed to calculate ceil rate table.\n"); + return -1; + } +@@ -221,6 +241,7 @@ + double buffer,cbuffer; + SPRINT_BUF(b1); + SPRINT_BUF(b2); ++ SPRINT_BUF(b3); + + if (opt == NULL) + return 0; +@@ -243,10 +264,16 @@ + fprintf(f, "ceil %s ", sprint_rate(hopt->ceil.rate, b1)); + cbuffer = ((double)hopt->ceil.rate*tc_core_tick2usec(hopt->cbuffer))/1000000; + if (show_details) { +- fprintf(f, "burst %s/%u mpu %s ", sprint_size(buffer, b1), +- 1<<hopt->rate.cell_log, sprint_size(hopt->rate.mpu, b2)); +- fprintf(f, "cburst %s/%u mpu %s ", sprint_size(cbuffer, b1), +- 1<<hopt->ceil.cell_log, sprint_size(hopt->ceil.mpu, b2)); ++ fprintf(f, "burst %s/%u mpu %s overhead %s ", ++ sprint_size(buffer, b1), ++ 1<<hopt->rate.cell_log, ++ sprint_size(hopt->rate.mpu&0xFF, b2), ++ sprint_size((hopt->rate.mpu>>8)&0xFF, b3)); ++ fprintf(f, "cburst %s/%u mpu %s overhead %s ", ++ sprint_size(cbuffer, b1), ++ 1<<hopt->ceil.cell_log, ++ sprint_size(hopt->ceil.mpu&0xFF, b2), ++ sprint_size((hopt->ceil.mpu>>8)&0xFF, b3)); + fprintf(f, "level %d ", (int)hopt->level); + } else { + fprintf(f, "burst %s ", sprint_size(buffer, b1)); |