dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)
AC_INIT([usbip-utils], [2.0], [linux-usb@vger.kernel.org])
AC_DEFINE([USBIP_VERSION], [0x00000111], [binary-coded decimal version number])

CURRENT=0
REVISION=1
AGE=0
AC_SUBST([LIBUSBIP_VERSION], [$CURRENT:$REVISION:$AGE], [library version])

AC_CONFIG_SRCDIR([src/usbipd.c])
AC_CONFIG_HEADERS([config.h])

AM_INIT_AUTOMAKE([foreign])
LT_INIT

# Silent build for automake >= 1.11
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

AC_SUBST([EXTRA_CFLAGS], ["-Wall -Werror -Wextra -std=gnu99"])

# Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_MAKE_SET

# Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stdint.h stdlib.h dnl
		  string.h sys/socket.h syslog.h unistd.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_INT32_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT8_T

# Checks for library functions.
AC_FUNC_REALLOC
AC_CHECK_FUNCS([memset mkdir regcomp socket strchr strerror strstr dnl
		strtoul])

AC_CHECK_HEADER([libudev.h],
		[AC_CHECK_LIB([udev], [udev_new],
			      [LIBS="$LIBS -ludev"],
			      [AC_MSG_ERROR([Missing udev library!])])],
		[AC_MSG_ERROR([Missing /usr/include/libudev.h])])

# Checks for libwrap library.
AC_MSG_CHECKING([whether to use the libwrap (TCP wrappers) library])
AC_ARG_WITH([tcp-wrappers],
	    [AS_HELP_STRING([--with-tcp-wrappers],
			    [use the libwrap (TCP wrappers) library])],
	    dnl [ACTION-IF-GIVEN]
	    [if test "$withval" = "yes"; then
		     AC_MSG_RESULT([yes])
		     AC_MSG_CHECKING([for hosts_access in -lwrap])
		     saved_LIBS="$LIBS"
		     LIBS="-lwrap $saved_LIBS"
		     AC_TRY_LINK(
		       [int hosts_access(); int allow_severity, deny_severity;],
		       [hosts_access()],
		       [AC_MSG_RESULT([yes]);
			AC_DEFINE([HAVE_LIBWRAP], [1],
				  [use tcp wrapper]) wrap_LIB="-lwrap"],
		       [AC_MSG_RESULT([not found]); exit 1])
	     else
		     AC_MSG_RESULT([no]);
	     fi],
	    dnl [ACTION-IF-NOT-GIVEN]
	    [AC_MSG_RESULT([(default)])
	     AC_MSG_CHECKING([for hosts_access in -lwrap])
	     saved_LIBS="$LIBS"
	     LIBS="-lwrap $saved_LIBS"
	     AC_TRY_LINK(
	       [int hosts_access(); int allow_severity, deny_severity;],
	       [hosts_access()],
	       [AC_MSG_RESULT([yes]);
		AC_DEFINE([HAVE_LIBWRAP], [1], [use tcp wrapper])],
	       [AC_MSG_RESULT([no]); LIBS="$saved_LIBS"])])

# Sets directory containing usb.ids.
AC_ARG_WITH([usbids-dir],
	    [AS_HELP_STRING([--with-usbids-dir=DIR],
	       [where usb.ids is found (default /usr/share/hwdata/)])],
	    [USBIDS_DIR=$withval], [USBIDS_DIR="/usr/share/hwdata/"])
AC_SUBST([USBIDS_DIR])

# use _FORTIFY_SOURCE
AC_MSG_CHECKING([whether to use fortify])
AC_ARG_WITH([fortify],
	    [AS_HELP_STRING([--with-fortify],
			    [use _FORTIFY_SROUCE option when compiling)])],
			    dnl [ACTION-IF-GIVEN]
			    [if test "$withval" = "yes"; then
				AC_MSG_RESULT([yes])
				CFLAGS="$CFLAGS -D_FORTIFY_SOURCE -O"
			     else
			     	AC_MSG_RESULT([no])
				CFLAGS="$CFLAGS -U_FORTIFY_SOURCE"
			     fi
			    ],
			    dnl [ACTION-IF-NOT-GIVEN]
			    [AC_MSG_RESULT([default])])

AC_CONFIG_FILES([Makefile libsrc/Makefile src/Makefile])
AC_OUTPUT
al.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/ncsi/internal.h?h=nds-private-remove&amp;id=038b9404d4e2db4fbc03d5d2203abafc6e188528&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
t></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;</td><td class='right'>2017-02-03 14:18:39 -0800</td></tr>
<tr><th>committer</th><td>Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;</td><td class='right'>2017-02-04 00:11:08 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/rdma?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>6e978b22efa1db9f6e71b24440b5f1d93e968ee3</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/rdma?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>c666f7a26b860674848949e39a610222b0723f89</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/rdma?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>include/rdma</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/rdma?id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>3c223c19aea85d3dda1416c187915f4a30b04b1f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/rdma?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3&amp;id2=3c223c19aea85d3dda1416c187915f4a30b04b1f'>diff</a>)</td></tr></table>
<div class='commit-subject'>cpufreq: intel_pstate: Disable energy efficiency optimization</div><div class='commit-msg'>Some Kabylake desktop processors may not reach max turbo when running in
HWP mode, even if running under sustained 100% utilization.

This occurs when the HWP.EPP (Energy Performance Preference) is set to
"balance_power" (0x80) -- the default on most systems.

It occurs because the platform BIOS may erroneously enable an
energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not
recommended to be enabled on this SKU.

On the failing systems, this BIOS issue was not discovered when the
desktop motherboard was tested with Windows, because the BIOS also
neglects to provide the ACPI/CPPC table, that Windows requires to enable
HWP, and so Windows runs in legacy P-state mode, where this setting has
no effect.

Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and
so it runs in HWP mode, exposing this incorrect BIOS configuration.

There are several ways to address this problem.

First, Linux can also run in legacy P-state mode on this system.
As intel_pstate is how Linux enables HWP, booting with
"intel_pstate=disable"
will run in acpi-cpufreq/ondemand legacy p-state mode.

Or second, the "performance" governor can be used with intel_pstate,
which will modify HWP.EPP to 0.

Or third, starting in 4.10, the
/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
attribute in can be updated from "balance_power" to "performance".

Or fourth, apply this patch, which fixes the erroneous setting of
MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default
configuration to function as designed.

Signed-off-by: Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;
Reviewed-by: Len Brown &lt;len.brown@intel.com&gt;
Cc: 4.6+ &lt;stable@vger.kernel.org&gt; # 4.6+
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>Diffstat</a> (limited to 'include/rdma')</div><table summary='diffstat' class='diffstat'>