[dpdk-dev] [PATCH 0/4] catch up TILE-Gx support in DPDK

[Chris Metcalf]

This patch series allows DPDK to build for TILE-Gx as of version 17.02.

A required library (libgxio) had not been made publicly available.
It is now available as source here:

  http://www.mellanox.com/repository/solutions/tile-scm/libgxio-1.0.tar.xz

it has also been folded into the binary release of the generic
toolchain that we periodically update on that website; for more
information about the toolchain tarballs, see here:

  http://www.mellanox.com/repository/solutions/tile-scm/

Note that the toolchain components were updated slightly in this release
of the tarballs relative to what was there before.

Hopefully, with DPDK now working on TILE-Gx again, there may be interest
from someone in the community in taking on a maintenance role.  At this
point, the Mellanox engineering team responsible for TILE-Gx is largely
focused on working on future chips based on ARMv8, so unfortunately we
won't have much bandwidth for TILE-Gx support going forward.

If it still seems like removal makes sense now or at some point in the
future, it would probably at least be good to apply these patches so
there is a baseline to pick it up from later.

Liming Sun, the tile dpdk maintainer, has reviewed these changes (he
sits next to me); if it's more appropriate, he can resend these changes
with his Signed-off-by as well.  I took on this work since I was more
familiar with libgxio and the details of our toolchain (I am the
maintainer for the tile architecture for Linux and glibc).

Chris Metcalf (4):
  tile: avoid use of non-upstreamed <arch/cycle.h>
  tile: remove requirement for <arch/mpipe_{xaui,gbe}_def.h headers
  strict alignment: generalize warning handling
  tile: fix remaining build issues

 config/defconfig_tile-tilegx-linuxapp-gcc          |  1 -
 drivers/net/mpipe/mpipe_tilegx.c                   | 36 ++++++++++++++--------
 lib/librte_eal/common/arch/tile/rte_cpuflags.c     |  3 --
 .../common/include/arch/tile/rte_cycles.h          |  4 +--
 mk/arch/tile/rte.vars.mk                           |  5 +++
 mk/toolchain/gcc/rte.vars.mk                       |  4 +--
 6 files changed, 33 insertions(+), 20 deletions(-)

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2.7.2