mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-01 18:55:56 +02:00
9fa444b39d
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16777 3c298f89-4303-0410-b956-a3cf2f4a3e73
97 lines
3.9 KiB
Diff
97 lines
3.9 KiB
Diff
--- a/tc/q_htb.c
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+++ b/tc/q_htb.c
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@@ -35,10 +35,14 @@ static void explain(void)
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" default minor id of class to which unclassified packets are sent {0}\n"
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" r2q DRR quantums are computed as rate in Bps/r2q {10}\n"
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" debug string of 16 numbers each 0-3 {0}\n\n"
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- "... class add ... htb rate R1 burst B1 [prio P] [slot S] [pslot PS]\n"
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+ "... class add ... htb rate R1 [burst B1] [mpu B] [overhead O]\n"
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+ " [prio P] [slot S] [pslot PS]\n"
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" [ceil R2] [cburst B2] [mtu MTU] [quantum Q]\n"
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" rate rate allocated to this class (class can still borrow)\n"
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" burst max bytes burst which can be accumulated during idle period {computed}\n"
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+ " mpu minimum packet size used in rate computations\n"
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+ " overhead per-packet size overhead used in rate computations\n"
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+
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" ceil definite upper class rate (no borrows) {rate}\n"
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" cburst burst but for ceil {computed}\n"
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" mtu max packet size we create rate map for {1600}\n"
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@@ -103,7 +107,9 @@ static int htb_parse_class_opt(struct qd
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struct tc_htb_opt opt;
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__u32 rtab[256],ctab[256];
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unsigned buffer=0,cbuffer=0;
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- int cell_log=-1,ccell_log = -1,mtu;
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+ int cell_log=-1,ccell_log = -1;
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+ unsigned mtu, mpu;
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+ unsigned char mpu8 = 0, overhead = 0;
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struct rtattr *tail;
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memset(&opt, 0, sizeof(opt)); mtu = 1600; /* eth packet len */
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@@ -120,6 +126,16 @@ static int htb_parse_class_opt(struct qd
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if (get_u32(&mtu, *argv, 10)) {
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explain1("mtu"); return -1;
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}
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+ } else if (matches(*argv, "mpu") == 0) {
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+ NEXT_ARG();
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+ if (get_u8(&mpu8, *argv, 10)) {
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+ explain1("mpu"); return -1;
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+ }
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+ } else if (matches(*argv, "overhead") == 0) {
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+ NEXT_ARG();
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+ if (get_u8(&overhead, *argv, 10)) {
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+ explain1("overhead"); return -1;
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+ }
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} else if (matches(*argv, "quantum") == 0) {
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NEXT_ARG();
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if (get_u32(&opt.quantum, *argv, 10)) {
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@@ -191,14 +207,18 @@ static int htb_parse_class_opt(struct qd
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if (!buffer) buffer = opt.rate.rate / HZ + mtu;
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if (!cbuffer) cbuffer = opt.ceil.rate / HZ + mtu;
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- if ((cell_log = tc_calc_rtable(opt.rate.rate, rtab, cell_log, mtu, 0)) < 0) {
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+/* encode overhead and mpu, 8 bits each, into lower 16 bits */
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+ mpu = (unsigned)mpu8 | (unsigned)overhead << 8;
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+ opt.ceil.mpu = mpu; opt.rate.mpu = mpu;
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+
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+ if ((cell_log = tc_calc_rtable(opt.rate.rate, rtab, cell_log, mtu, mpu)) < 0) {
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fprintf(stderr, "htb: failed to calculate rate table.\n");
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return -1;
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}
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opt.buffer = tc_calc_xmittime(opt.rate.rate, buffer);
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opt.rate.cell_log = cell_log;
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- if ((ccell_log = tc_calc_rtable(opt.ceil.rate, ctab, cell_log, mtu, 0)) < 0) {
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+ if ((ccell_log = tc_calc_rtable(opt.ceil.rate, ctab, cell_log, mtu, mpu)) < 0) {
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fprintf(stderr, "htb: failed to calculate ceil rate table.\n");
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return -1;
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}
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@@ -222,6 +242,7 @@ static int htb_print_opt(struct qdisc_ut
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double buffer,cbuffer;
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SPRINT_BUF(b1);
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SPRINT_BUF(b2);
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+ SPRINT_BUF(b3);
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if (opt == NULL)
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return 0;
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@@ -244,10 +265,16 @@ static int htb_print_opt(struct qdisc_ut
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fprintf(f, "ceil %s ", sprint_rate(hopt->ceil.rate, b1));
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cbuffer = ((double)hopt->ceil.rate*tc_core_tick2usec(hopt->cbuffer))/1000000;
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if (show_details) {
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- fprintf(f, "burst %s/%u mpu %s ", sprint_size(buffer, b1),
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- 1<<hopt->rate.cell_log, sprint_size(hopt->rate.mpu, b2));
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- fprintf(f, "cburst %s/%u mpu %s ", sprint_size(cbuffer, b1),
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- 1<<hopt->ceil.cell_log, sprint_size(hopt->ceil.mpu, b2));
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+ fprintf(f, "burst %s/%u mpu %s overhead %s ",
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+ sprint_size(buffer, b1),
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+ 1<<hopt->rate.cell_log,
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+ sprint_size(hopt->rate.mpu&0xFF, b2),
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+ sprint_size((hopt->rate.mpu>>8)&0xFF, b3));
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+ fprintf(f, "cburst %s/%u mpu %s overhead %s ",
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+ sprint_size(cbuffer, b1),
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+ 1<<hopt->ceil.cell_log,
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+ sprint_size(hopt->ceil.mpu&0xFF, b2),
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+ sprint_size((hopt->ceil.mpu>>8)&0xFF, b3));
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fprintf(f, "level %d ", (int)hopt->level);
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} else {
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fprintf(f, "burst %s ", sprint_size(buffer, b1));
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