From owner-svn-src-all@freebsd.org  Thu Feb 25 01:10:58 2016
Return-Path: <owner-svn-src-all@freebsd.org>
Delivered-To: svn-src-all@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2D5ADAB3A83;
 Thu, 25 Feb 2016 01:10:58 +0000 (UTC) (envelope-from np@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id EEF1D365;
 Thu, 25 Feb 2016 01:10:57 +0000 (UTC) (envelope-from np@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u1P1AuG7028915;
 Thu, 25 Feb 2016 01:10:56 GMT (envelope-from np@FreeBSD.org)
Received: (from np@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id u1P1AucG028913;
 Thu, 25 Feb 2016 01:10:56 GMT (envelope-from np@FreeBSD.org)
Message-Id: <201602250110.u1P1AucG028913@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: np set sender to np@FreeBSD.org
 using -f
From: Navdeep Parhar <np@FreeBSD.org>
Date: Thu, 25 Feb 2016 01:10:56 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r296018 - head/sys/dev/cxgbe
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 25 Feb 2016 01:10:58 -0000

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.
 	 */