cxgbe(4): sysctls to display the TOE's TCP timers.
cask:~# sysctl -d dev.t5nex.0.toe dev.t5nex.0.toe.finwait2_timer: FINWAIT2 timer (us) dev.t5nex.0.toe.initial_srtt: Initial SRTT (us) dev.t5nex.0.toe.keepalive_intvl: Keepidle interval (us) dev.t5nex.0.toe.keepalive_idle: Keepidle idle timer (us) dev.t5nex.0.toe.persist_max: Persist timer max (us) dev.t5nex.0.toe.persist_min: Persist timer min (us) dev.t5nex.0.toe.rexmt_max: Retransmit max (us) dev.t5nex.0.toe.rexmt_min: Retransmit min (us) dev.t5nex.0.toe.dack_timer: DACK timer (us) dev.t5nex.0.toe.dack_tick: DACK tick (us) dev.t5nex.0.toe.timestamp_tick: TCP timestamp tick (us) dev.t5nex.0.toe.timer_tick: TP timer tick (us) ... cask:~# sysctl dev.t5nex.0.toe dev.t5nex.0.toe.finwait2_timer: 9765440 dev.t5nex.0.toe.initial_srtt: 244128 dev.t5nex.0.toe.keepalive_intvl: 73240800 dev.t5nex.0.toe.keepalive_idle: 7031116800 dev.t5nex.0.toe.persist_max: 9765440 dev.t5nex.0.toe.persist_min: 976544 dev.t5nex.0.toe.rexmt_max: 9765440 dev.t5nex.0.toe.rexmt_min: 244128 dev.t5nex.0.toe.dack_timer: 19520 dev.t5nex.0.toe.dack_tick: 32.768 dev.t5nex.0.toe.timestamp_tick: 1048.576 dev.t5nex.0.toe.timer_tick: 32.768 ...
This commit is contained in:
parent
47cedcbd72
commit
959824daba
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=296689
@ -482,6 +482,9 @@ static int sysctl_tx_rate(SYSCTL_HANDLER_ARGS);
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static int sysctl_ulprx_la(SYSCTL_HANDLER_ARGS);
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static int sysctl_wcwr_stats(SYSCTL_HANDLER_ARGS);
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#endif
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static int sysctl_tp_tick(SYSCTL_HANDLER_ARGS);
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static int sysctl_tp_dack_timer(SYSCTL_HANDLER_ARGS);
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static int sysctl_tp_timer(SYSCTL_HANDLER_ARGS);
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static uint32_t fconf_iconf_to_mode(uint32_t, uint32_t);
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static uint32_t mode_to_fconf(uint32_t);
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static uint32_t mode_to_iconf(uint32_t);
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@ -4890,6 +4893,54 @@ t4_sysctls(struct adapter *sc)
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sc->tt.tx_align = 1;
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SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_align",
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CTLFLAG_RW, &sc->tt.tx_align, 0, "chop and align payload");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "timer_tick",
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CTLTYPE_STRING | CTLFLAG_RD, sc, 0, sysctl_tp_tick, "A",
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"TP timer tick (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "timestamp_tick",
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CTLTYPE_STRING | CTLFLAG_RD, sc, 1, sysctl_tp_tick, "A",
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"TCP timestamp tick (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dack_tick",
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CTLTYPE_STRING | CTLFLAG_RD, sc, 2, sysctl_tp_tick, "A",
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"DACK tick (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dack_timer",
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CTLTYPE_UINT | CTLFLAG_RD, sc, 0, sysctl_tp_dack_timer,
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"IU", "DACK timer (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_min",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_RXT_MIN,
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sysctl_tp_timer, "LU", "Retransmit min (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_max",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_RXT_MAX,
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sysctl_tp_timer, "LU", "Retransmit max (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "persist_min",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_PERS_MIN,
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sysctl_tp_timer, "LU", "Persist timer min (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "persist_max",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_PERS_MAX,
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sysctl_tp_timer, "LU", "Persist timer max (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_idle",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_KEEP_IDLE,
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sysctl_tp_timer, "LU", "Keepidle idle timer (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_intvl",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_KEEP_INTVL,
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sysctl_tp_timer, "LU", "Keepidle interval (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "initial_srtt",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_INIT_SRTT,
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sysctl_tp_timer, "LU", "Initial SRTT (us)");
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SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "finwait2_timer",
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CTLTYPE_ULONG | CTLFLAG_RD, sc, A_TP_FINWAIT2_TIMER,
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sysctl_tp_timer, "LU", "FINWAIT2 timer (us)");
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}
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#endif
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}
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@ -7388,6 +7439,90 @@ sysctl_wcwr_stats(SYSCTL_HANDLER_ARGS)
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}
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#endif
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static void
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unit_conv(char *buf, size_t len, u_int val, u_int factor)
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{
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u_int rem = val % factor;
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if (rem == 0)
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snprintf(buf, len, "%u", val / factor);
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else {
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while (rem % 10 == 0)
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rem /= 10;
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snprintf(buf, len, "%u.%u", val / factor, rem);
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}
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}
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static int
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sysctl_tp_tick(SYSCTL_HANDLER_ARGS)
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{
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struct adapter *sc = arg1;
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char buf[16];
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u_int res, re;
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u_int cclk_ps = 1000000000 / sc->params.vpd.cclk;
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res = t4_read_reg(sc, A_TP_TIMER_RESOLUTION);
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switch (arg2) {
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case 0:
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/* timer_tick */
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re = G_TIMERRESOLUTION(res);
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break;
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case 1:
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/* TCP timestamp tick */
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re = G_TIMESTAMPRESOLUTION(res);
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break;
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case 2:
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/* DACK tick */
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re = G_DELAYEDACKRESOLUTION(res);
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break;
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default:
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return (EDOOFUS);
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}
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unit_conv(buf, sizeof(buf), (cclk_ps << re), 1000000);
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return (sysctl_handle_string(oidp, buf, sizeof(buf), req));
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}
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static int
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sysctl_tp_dack_timer(SYSCTL_HANDLER_ARGS)
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{
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struct adapter *sc = arg1;
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u_int res, dack_re, v;
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u_int cclk_ps = 1000000000 / sc->params.vpd.cclk;
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res = t4_read_reg(sc, A_TP_TIMER_RESOLUTION);
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dack_re = G_DELAYEDACKRESOLUTION(res);
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v = ((cclk_ps << dack_re) / 1000000) * t4_read_reg(sc, A_TP_DACK_TIMER);
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return (sysctl_handle_int(oidp, &v, 0, req));
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}
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static int
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sysctl_tp_timer(SYSCTL_HANDLER_ARGS)
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{
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struct adapter *sc = arg1;
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int reg = arg2;
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u_int tre;
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u_long tp_tick_us, v;
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u_int cclk_ps = 1000000000 / sc->params.vpd.cclk;
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MPASS(reg == A_TP_RXT_MIN || reg == A_TP_RXT_MAX ||
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reg == A_TP_PERS_MIN || reg == A_TP_PERS_MAX ||
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reg == A_TP_KEEP_IDLE || A_TP_KEEP_INTVL || reg == A_TP_INIT_SRTT ||
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reg == A_TP_FINWAIT2_TIMER);
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tre = G_TIMERRESOLUTION(t4_read_reg(sc, A_TP_TIMER_RESOLUTION));
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tp_tick_us = (cclk_ps << tre) / 1000000;
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if (reg == A_TP_INIT_SRTT)
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v = tp_tick_us * G_INITSRTT(t4_read_reg(sc, reg));
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else
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v = tp_tick_us * t4_read_reg(sc, reg);
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return (sysctl_handle_long(oidp, &v, 0, req));
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}
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static uint32_t
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fconf_iconf_to_mode(uint32_t fconf, uint32_t iconf)
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{
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