Date: Thu, 25 Feb 2016 01:10:56 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r296018 - head/sys/dev/cxgbe Message-ID: <201602250110.u1P1AucG028913@repo.freebsd.org>
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Author: np Date: Thu Feb 25 01:10:56 2016 New Revision: 296018 URL: https://svnweb.freebsd.org/changeset/base/296018 Log: cxgbe(4): Add a sysctl to retrieve the maximum speed/bandwidth supported by a port. dev.cxgbe.<n>.max_speed dev.cxl.<n>.max_speed Sponsored by: Chelsio Communications Modified: head/sys/dev/cxgbe/adapter.h head/sys/dev/cxgbe/t4_main.c Modified: head/sys/dev/cxgbe/adapter.h ============================================================================== --- head/sys/dev/cxgbe/adapter.h Thu Feb 25 01:03:34 2016 (r296017) +++ head/sys/dev/cxgbe/adapter.h Thu Feb 25 01:10:56 2016 (r296018) @@ -1011,6 +1011,22 @@ is_40G_port(const struct port_info *pi) } static inline int +port_top_speed(const struct port_info *pi) +{ + + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100G) + return (100); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_40G) + return (40); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) + return (10); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G) + return (1); + + return (0); +} + +static inline int tx_resume_threshold(struct sge_eq *eq) { Modified: head/sys/dev/cxgbe/t4_main.c ============================================================================== --- head/sys/dev/cxgbe/t4_main.c Thu Feb 25 01:03:34 2016 (r296017) +++ head/sys/dev/cxgbe/t4_main.c Thu Feb 25 01:10:56 2016 (r296018) @@ -5499,6 +5499,9 @@ cxgbe_sysctls(struct port_info *pi) CTLTYPE_STRING | CTLFLAG_RW, pi, PAUSE_TX, sysctl_pause_settings, "A", "PAUSE settings (bit 0 = rx_pause, bit 1 = tx_pause)"); + SYSCTL_ADD_INT(ctx, children, OID_AUTO, "max_speed", CTLFLAG_RD, NULL, + port_top_speed(pi), "max speed (in Gbps)"); + /* * dev.cxgbe.X.stats. */
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