Fix up configure test for <valgrind/memcheck.h>

Print a warning if Valgrind annotations are requested but
<valgrind/memcheck.h> is not found.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add Valgrind annotations

Add basic Valgrind annotations to libibverbs (disabled by default, can
be enabled by configuring with --with-valgrind).  These reduce false
positive warnings from the Valgrind memcheck module.

Based on work and suggestions from Rainer Keller <keller@hlrs.de> and
Jeff Squyres <jsquyres@cisco.com>.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add node_type and transport_type members to struct ibv_device

This helps apps work with both iWARP and IB devices.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Update libibverbs man pages so they don't refer to "OpenIB"

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix alignment of work request structures

Swap next and wr_id members of struct ibv_send_wr and ibv_recv_wr to
allow wr_id to be naturally aligned on 32-bit architectures without
padding.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Debian packaging improvements

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add response handling to ibv_cmd_resize_cq()

Add resp and resp_size parameters to ibv_cmd_resize_cq() so that the
low-level driver in the kernel can return device-specific information
from the resize CQ operation.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix formatting of pingpong man pages slightly

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Simplify Debian package version

Use ~ in Debian package version to get sort order of -pre packages
correct in a better way.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Make fork() work for verbs consumers

Add code to libibvers that uses madvise(..., MADV_DONTFORK) to make
fork() work for verbs consumers.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix libibverbs definition of mb() for sparc

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add some helper functions to simplify using UD QPs

Add new routines: ibv_init_ah_from_wc() and ibv_create_ah_from_wc() to
simplify UD QP communication.

Expose ibv_copy_ah_attr_from_kern to retrieve ibv_ah_attr from kernel
for a UD QP.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>

Fix ibv_get_device_list() to really NULL-terminate the array

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix minor memory leaks

The result of asprintf needs to be free when no longer needed.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add IBV_EVENT_CLIENT_REREGISTER to libibverbs

Signed-off-by: Leonid Arsh <leonida@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix update to Debian policy 3.7.2

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Branch a libibverbs-1.0 tree for maintenance

Start 1.1 development in main libibverbs tree:
 - Remove libsysfs use
 - Remove deprecated symbols

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add a request for ChangeLog entries to the README

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Get rid of commas at end of enum lists

While comma at end of enumerator list is legal since 1999, some tools
(notably gcc versions pre-4.0) seem to default to 1989 mode when
running with -pedantic flag, and warn about this usage.

Since most of our enums in header files do not have comma at end, its
probably easier to fix the remaining two cases than educate all users
of libibverbs on virtues of C99.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump version number

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Update to debian policy 3.7.0

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Use correct email address in Debian changelog

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0.3 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix Debian sparc build failure

Fix build failure with Debian sparc compiler: membar is only supported
under V9 ISA.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix memory leak in ibv_read_sysfs_file()

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Reduce dependency on libsysfs

Reduce libibverbs dependency on libsysfs by using local functions for
internal sysfs access.  libsysfs is still required because of the ABI,
which passes a struct sysfs_class_device * to low-level driver init
functions.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Deprecate "ib_XXX" names

Deprecate various "ib_XXX" names (introduced as part of SA and
marshalling code).  Preferred versions like "ibv_XXX" are now
available.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add ibv_rate_to_mult() and mult_to_ibv_rate() functions

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add __attribute_const macro for gcc >= 3

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Minor Debian packaging tweaks

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Make libsysfs dependency more robust in spec file

Depend on %{_includedir}/sysfs/libsysfs.h instead of sysfs-devel to be
friendlier to building on SuSE distros.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Revert unreviewed changes made without maintainer approval

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Update spec file from 1.0 branch

Print a warning if dlopen() of a driver fails

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Change Priority field of Debian packages to "extra"

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Added a print of the event name in string format

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Improve documentation of ibv_req_notify_cq()

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add include of <stdlib.h>

This fixes warnings about implicit declaration of free().

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add some missing dependencies in Debian control files

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Expand debian/copyright

Put more detail about copyright holders and licenses in debian/copyright.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Build-Depend on debhelper (>= 5)

Debian packaging sets compat to 5, so packages also need to
Build-Depend on debhelper (>= 5).

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump libibverbs version

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0.2 release

Debian packaging fixes only.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Debian packaging fixes based on feedback from debian-mentors mailing list

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump version in svn, and switch to non-native Debian packaging

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0.1 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Use sysfs_open_attribute() and sysfs_read_attribute()

Use sysfs_open_attribute() and sysfs_read_attribute() instead of the
deprecated function sysfs_read_attribute_value(), which is no longer
present in libsysfs2 (which is already in Debian and Ubuntu).

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump libibverbs version to 1.0.1

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add enum ibv_rate

Add enum ibv_rate to define encoding of static_rate field (based on a
patch from Jack Morgenstein <jackm@mellanox.co.il>).

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix memory leak in find_drivers()

I was browsing through the libibverbs code and found a minor memory
leak.  Here is the fix.

Signed-off-by: Ralph Campbell <ralphc@pathscale.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Remove copyright notices without license text

They bugged some silly people.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add support for kernel ABI version 6

Add support for kernel ABI 6: take SRQ capacity from kernel response
to create SRQ.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump libibverbs version

Be optimistic and assume that the next release will be 1.0.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0-rc7 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add support for kernel ABI version 5

Add support for kernel ABI 5, which properly aligns struct ibv_create_qp_resp.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add response handling to ibv_cmd_create_qp()

Add resp and resp_size parameters to libibverbs's ibv_cmd_create_qp()
function so that kernel low-level drivers can return private data to
userspace device drivers.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump libibverbs version number to 1.0-rc7

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0-rc6 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add lots more TODO information to the libibverbs README

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Report board_id from ibv_devinfo, if present

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Remove cpu_to_be64/be64_to_cpu

Remove duplicated cpu_to_be64/be64_to_cpu functions in favor of
htonll/ntohll from <infiniband/arch.h>.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

libibverbs changes for query QP and query SRQ verbs

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix pingpong examples' handling of specifying device by name

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Remove useless "extern" from function declarations

Signed-off-by: Roland Dreier <rolandd@cisco.com>

libibverbs changes to handle resizing CQs

Essentially just adding API and support for passing the call through
to provider plug-ins.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add "extern" to declarations for consistency

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix Source: line in spec files to point to new tarball name

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Move pp_get_local_lid() to common file

Factor out more common pingpong code.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump libibverbs version number to 1.0-rc6

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0-rc5 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Update TODO section in README

Signed-off-by: Roland Dreier <rolandd@cisco.com>

List all devices in ibv_devinfo

Make ibv_devinfo list all IB devices by default, rather than the first
device only.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Factor out some common code in pingpong examples

- Create pingpong.c/pingpong.h to hold common code for pingpong examples.
- Add option to set path MTU for connected transport pingpong examples.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Arm CQ early enough in pingpong examples

The example pingpong programs have a race when using events where the
client sends the first packet but the server hasn't yet armed the CQ
by calling ibv_req_notify_cq() thus waiting forever in
ibv_get_cq_event().  The fix is to move the call to
ibv_req_notify_cq() before signaling the client to "start".

Signed-off-by: Ralph Campbell <ralphc@pathscale.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix ibv_srq_pingpong bug with many QPs when using CQ events

Fix SRQ example to avoid problems with many QPs and events.  Based on
a patch from Dotan Barak (who also found the problem).

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix test of return value of ibv_poll_cq() in pingpong examples

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Typo fix in the description of ibv_modify_srq()

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix ibverbs_init for multiple adapters

Noted by Christoph Raisch.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

struct ibv_send_wr.imm_data is in network byte order

verbs.h documents ordering for immediate data in completion, but not
in send work request.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Improve ibv_free_device_list() documentation

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Handle devices that don't support SRQ

create_srq is not a mandatory device function, therefore in
userspace/libibverbs/src/verbs.c ibv_create_srq should check
create_srq() first before calling it, otherwise the caller will cause
the segmentation fault on device which doesn't support SRQs.

Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Change from ibv_get_devices() to ibv_get_device_list()

Change libibverbs API for listing all known devices from
ibv_get_devices() to ibv_get_device_list(), and update all in-tree
uses of this API.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix EXTRA_DIST: sa-kern-abi.h path is wrong

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Various trivial picayune libibverbs changes

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Add support for userspace RDMA connection management abstraction (CMA)

Add common user/kernel data structures and copy routines in libibverbs.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>

Add changelog entry for previous checkin

Make ibv_get_devices reentrant

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Handle kernel uverbs ABI version 4

Update libibverbs and libmthca to handle new kernel ABI 4, which has
the kernel compute exact capabilities for QPs.

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix CQ overrun in SRQ pingpong example

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Bump debian package version to -rc5 as well

Bump libibverbs version number to 1.0-rc5

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Really roll releases

Fix version in spec file changelog.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Roll libibverbs 1.0-rc4 release

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix QP attr masks in ibv_uc_pingpong

Fix QP attribute masks used in ibv_uc_pingpong -- now that mthca
correctly fails if we try to set RDMA/atomic capabilities for UC QPs,
the examples need to be fixed as well.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Handle out-of-order completions in pingpong examples

Keep track of whether send and/or receive is pending in libibverbs
pingpong examples.  This avoids failures when the remote side receives
data and posts a send very quickly, and the local side completes the
receive before the previous send.  With the old code, this could
result in posting a send before the previous send completed, and
therefore overrun the send queue.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix "Source:" line in RPM spec files to be a valid URL

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Fix buffer size computation in ibv_cmd_get_context_v2()

Correct silly mistake in ibv_cmd_get_context_v2() computation of size
of buffer for old ABI command: we need to use sizeof *cmd instead of
sizeof cmd, since cmd is a pointer.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Move where we set qp->qp_type from cmd.c to verbs.c

Just to be really anal.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

Check write() return value against size we tried to write

In libibverbs post send, post recv and post SRQ recv marshalling code,
correct value that we check write() return value against so that we
check against the size we actually try to write, instead of just
sizeof cmd.

Signed-off-by: Roland Dreier <rolandd@cisco.com>