Author: arybchik Date: Thu Jan 12 15:26:23 2017 New Revision: 311983 URL: https://svnweb.freebsd.org/changeset/base/311983
Log: sfxge(4): add sysctl to change MAC stats update period The sysctl controls the period per interface. Reviewed by: gnn Sponsored by: Solarflare Communications, Inc. MFC after: 2 days Differential Revision: https://reviews.freebsd.org/D9153 Modified: head/share/man/man4/sfxge.4 head/sys/dev/sfxge/sfxge_port.c Modified: head/share/man/man4/sfxge.4 ============================================================================== --- head/share/man/man4/sfxge.4 Thu Jan 12 14:47:44 2017 (r311982) +++ head/share/man/man4/sfxge.4 Thu Jan 12 15:26:23 2017 (r311983) @@ -166,6 +166,8 @@ Supported on SFN8xxx series adapters wit SFN5xxx and SFN6xxx series adapters. SFN7xxx series adapters and SFN8xxx series with earlier firmware use a fixed 1000 milliseconds statistics update period. +The period may also be changed after the driver is loaded using the sysctl +.Va dev.sfxge.%d.stats_update_period_ms . .El .Sh SUPPORT For general information and support, Modified: head/sys/dev/sfxge/sfxge_port.c ============================================================================== --- head/sys/dev/sfxge/sfxge_port.c Thu Jan 12 14:47:44 2017 (r311982) +++ head/sys/dev/sfxge/sfxge_port.c Thu Jan 12 15:26:23 2017 (r311983) @@ -702,6 +702,48 @@ sfxge_port_stats_update_period_ms(struct return period_ms; } +static int +sfxge_port_stats_update_period_ms_handler(SYSCTL_HANDLER_ARGS) +{ + struct sfxge_softc *sc; + struct sfxge_port *port; + unsigned int period_ms; + int error; + + sc = arg1; + port = &sc->port; + + if (req->newptr != NULL) { + error = SYSCTL_IN(req, &period_ms, sizeof(period_ms)); + if (error != 0) + return (error); + + if (period_ms > UINT16_MAX) + return (EINVAL); + + SFXGE_PORT_LOCK(port); + + if (port->stats_update_period_ms != period_ms) { + if (port->init_state == SFXGE_PORT_STARTED) + error = efx_mac_stats_periodic(sc->enp, + &port->mac_stats.dma_buf, + period_ms, B_FALSE); + if (error == 0) + port->stats_update_period_ms = period_ms; + } + + SFXGE_PORT_UNLOCK(port); + } else { + SFXGE_PORT_LOCK(port); + period_ms = port->stats_update_period_ms; + SFXGE_PORT_UNLOCK(port); + + error = SYSCTL_OUT(req, &period_ms, sizeof(period_ms)); + } + + return (error); +} + int sfxge_port_init(struct sfxge_softc *sc) { @@ -753,6 +795,11 @@ sfxge_port_init(struct sfxge_softc *sc) port->stats_update_period_ms = sfxge_port_stats_update_period_ms(sc); sfxge_mac_stat_init(sc); + SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, + "stats_update_period_ms", CTLTYPE_UINT|CTLFLAG_RW, sc, 0, + sfxge_port_stats_update_period_ms_handler, "IU", + "interface statistics refresh period"); + port->init_state = SFXGE_PORT_INITIALIZED; DBGPRINT(sc->dev, "success"); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
