Commit Graph

2213 Commits

Author SHA1 Message Date
Shreyansh Jain
e64e0e2737 doc: add tested platforms for NXP SoCs
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2018-05-28 01:40:01 +02:00
Jerin Jacob
69fee3adfe doc: add tested platforms for Cavium SoCs
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2018-05-28 01:38:39 +02:00
Jerin Jacob
d80e42cce4 doc: fix a typo in flow API howto
Fixes: 3e0ceb9f17 ("doc: add basic howto for flow API")
Cc: stable@dpdk.org

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2018-05-28 01:36:42 +02:00
Kirill Rybalchenko
6211186141 doc: remove old deprecation notice for i40e
New default configuration without flexible payload
is implemented now.

Fixes: d2f9fe8ae3 ("net/i40e: turn off flexible payload on driver init")
Cc: stable@dpdk.org

Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
2018-05-28 01:31:13 +02:00
Zhihong Wang
6b1a7a4664 doc: add vhost interrupt mode in release notes
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-25 18:31:56 +02:00
Zhihong Wang
50af5447ee doc: add vDPA in release notes
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-25 18:29:36 +02:00
Zhihong Wang
6beea2440c doc: add vDPA in vhost guide
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-25 18:24:18 +02:00
Tiwei Bie
eef1e585f9 doc: convert virtio guide to new offload API
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2018-05-25 17:07:40 +02:00
Xiao Wang
cde83b8bd7 doc: add note for maximum queues setting in vhost sample
If the NIC has a queue number larger than 128, then we need to change
the ``MAX_QUEUES`` to a larger number to make sure we allocate a big
enough memory pool for device setup.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-25 17:07:40 +02:00
Rasesh Mody
c49a438fce doc: update qede guide and features
Add LINUX VFIO support to feature list.

Add GRE tunneling offload to supported feature list.

Update firmware references to use newer FW image 8.33.12.0. Update
management FW version as well to 8.34.x.x.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2018-05-25 17:07:40 +02:00
Shahaf Shuler
5a768814a6 doc: drop support of Mellanox OFED 4.2
Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
2018-05-25 17:07:40 +02:00
Shijith Thotton
5aa495f402 doc: remove deprecated terms from liquidio guide
Remove reference to deprecated ethdev offload parameter from liquidio
documentation.

Fixes: dd6aab1671 ("net/liquidio: move to new offload API")

Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
2018-05-25 17:07:40 +02:00
Jerin Jacob
8db1caa962 doc: remove deprecated terms from octeontx guide
Remove reference to deprecated ethdev offload parameter from octeontx
documentation.

Fixes: a92870896b ("net/octeontx: use the new offload APIs")
Cc: stable@dpdk.org

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2018-05-25 17:07:40 +02:00
Jerin Jacob
6e2320bec5 doc: remove deprecated terms from thunderx guide
Remove reference to deprecated ethdev offload parameter from thunderx
documentation.

Fixes: c97da2cbc2 ("net/thunderx: convert to new offload API")
Cc: stable@dpdk.org

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2018-05-25 17:07:40 +02:00
Qi Zhang
ba932ddabd doc: convert fm10k guide to new offload API
Cleanup document to convert old rxmode and txq_flags to new offload
bit mask.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
2018-05-25 17:07:40 +02:00
Qi Zhang
a19b726531 doc: convert ixgbe guide to new offload API
Cleanup document to convert old rxmode flags to new offload
bit mask.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
2018-05-25 17:07:40 +02:00
Olivier Matz
f83a3d3fa8 use SPDX tag for 6WIND copyrighted files
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
2018-05-25 10:47:06 +02:00
Thomas Monjalon
ea9382dc2b use SPDX license tag in Mellanox copyrighted files
Some files were left with full license and wrong copyright format.
They are switched to this format:
	SPDX-License-Identifier: BSD-3-Clause
	Copyright 2017 Mellanox Technologies, Ltd

Fixes: 5feecc57d9 ("align SPDX Mellanox copyrights")

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
2018-05-25 10:33:33 +02:00
Luca Boccassi
d53f61b6fe doc: advise to specify LTS branch when backporting patches
We have many stable branches being maintained at the same time, and
sometimes it's not clear which branch a patch is being backported for.
Note in the guidelines that it should be specified via the cover letter,
annotation or using --subject-prefix.
Also note to send only to stable@dpdk.org, not dev@dpdk.org.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-05-25 09:53:36 +02:00
Marko Kovacevic
f16e13c991 doc: add contribution guidelines for stable tags
Added contribution guideline for adding stable
tags when sending patches all fix patches to the
master branch that are candidates for backporting

Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-05-24 18:48:58 +02:00
Marko Kovacevic
d687e0d0be doc: add contribution guidelines for coverity tags
Added contribution guideline for adding tags
when sending patches that have been raised by
coverity

Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-05-24 18:48:54 +02:00
Raslan Darawsheh
298ea2bb11 doc: add tested platforms with Mellanox NICs
Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
2018-05-24 18:24:26 +02:00
Yulong Pei
150a2bbbb9 doc: add tested Intel platforms with Intel NICs
Add tested Intel platforms with Intel NICs to the release note.

Signed-off-by: Yulong Pei <yulong.pei@intel.com>
2018-05-24 15:56:23 +02:00
Shahaf Shuler
0568dac3b4 doc: update release notes for mlx drivers
Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
2018-05-23 00:35:01 +02:00
Qi Zhang
e435197a5f net/ixgbe: remove unnecessary macro
Since we move to new offload APIs, IXGBE_SIMPLE_FLAGS is not used.

Fixes: 51215925a3 ("net/ixgbe: convert to new Tx offloads API")

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
2018-05-23 00:35:01 +02:00
Shagun Agrawal
f5b3c7b293 net/cxgbevf: fix inter-VM traffic when physical link down
Add force_link_up devargs to always force link as up for VFs.
This enables VFs on the same NIC to send traffic to each other
even when physical link is down.

Also add RTE_PMD_REGISTER_PARAM_STRING to export all supported
devargs.

Fixes: 011ebc236d ("net/cxgbe: add skeleton VF driver")

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-05-23 00:35:01 +02:00
Qiming Yang
aa4cef698c doc: fix spelling in i40e guide
This patch corrects some spelling issues in i40e.rst and clarifies
which controllers and connections are part of the 700 Series.

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-23 00:35:00 +02:00
Vipin Varghese
7e323fea6c doc: add note about device options for multi-process
Update information for blacklist and whitelist options for secondary
process to share same from primary process.

Signed-off-by: Vipin Varghese <vipin.varghese@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-05-23 00:33:28 +02:00
Pablo de Lara
5f30035740 doc: update ZUC installation section
Intel's libsso_zuc library has been moved to a
new location, under "Intel Resource & Design Center".
The installation section of this PMD has been updated
to include the new instructions.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
e0163eab61 doc: update SNOW3G installation section
Intel's libsso_snow3g library has been moved to a
new location, under "Intel Resource & Design Center".
The installation section of this PMD has been updated
to include the new instructions.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
d166f3db35 doc: update KASUMI installation section
Intel's libsso_kasumi library has been moved to a
new location, under "Intel Resource & Design Center".
The installation section of this PMD has been updated
to include the new instructions.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
a106fcce2c cryptodev: rename functions to get session size
rte_cryptodev_get_header_session_size() and
rte_cryptodev_get_private_session_size() functions are
targeting symmetric sessions.

With the future addition of asymmetric operations,
these functions need to be renamed from *cryptodev_*_session_*
to *cryptodev_sym_*_session_* to be symmetric specific.

The two original functions are marked as deprecated
and will be removed in 18.08, so applications can still
use the functions in 18.05.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Shally Verma <shally.verma@caviumnetworks.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
d39c461535 doc: announce deprecation in crypto feature flags
Some feature flags, such as RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER
are ambiguous. In this case, it is not clear if Scatter Gather lists
are supported in the input buffer and/or output buffer.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
2d9c4d0621 doc: announce deprecation in crypto queue pair start/stop
Functions rte_cryptodev_queue_pair_start/stop
are not really used in any of the crypto drivers
(they all just return 0 or -ENOTSUP).
Therefore, this API can be deprecated from 18.05
and removed in 18.08.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
fd9e776e97 doc: announce deprecation for attach/detach crypto session
Functions rte_cryptodev_queue_pair_attach_sym_session
and rte_cryptodev_queue_pair_detach_sym_sessions
are not really used in any of the crypto drivers
(only one driver implements it and it just return 0).
Therefore, this API can be deprecated from 18.05
and removed in 18.08.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
737a4bf34d doc: announce ABI change for crypto info struct
Cryptodev info structure currently contains
a pointer to an rte_pci_device structure.
This field depends on a specific bus type (PCI),
which is not following a bus independent design.
Following the same approach taken in ethdev, the field
will be replaced with a pointer to an rte_device structure.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:12 +02:00
Pablo de Lara
229f1f067e doc: announce ABI change for crypto sym info struct
Since the API changes made in 17.08, the session mempool
is not created anymore in each crypto device.
Therefore, there is no need to have, in the cryptodev info
structure, the maximum number of sessions supported per device
and per queue pair.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:12 +02:00
Fiona Trahe
08aa6271c8 doc: clarify chained mbuf feature in crypto guide
Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2018-05-22 16:36:11 +02:00
Qi Zhang
115ae7689f doc: add runtime queue setup in release notes
Add updates for runtime queue setup.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
2018-05-17 19:06:29 +02:00
Matan Azrad
1f106da2bf net/mlx5: support MPLS-in-GRE and MPLS-in-UDP
Add support for MPLS over GRE and MPLS over UDP tunnel types as
described in the next RFCs:
1. https://tools.ietf.org/html/rfc4023
2. https://tools.ietf.org/html/rfc7510
3. https://tools.ietf.org/html/rfc4385

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
2018-05-17 12:31:42 +02:00
Shahaf Shuler
dd3331c6f1 net/mlx5: add Bluefield device id
Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
2018-05-17 12:31:42 +02:00
Wei Dai
c73a907187 app/testpmd: add commands to test new offload API
Add following testpmd run-time commands to support test of
new Rx offload API:
show port <port_id> rx_offload capabilities
show port <port_id> rx_offload configuration
port config <port_id> rx_offload <offload> on|off
port <port_id> rxq <queue_id> rx_offload <offload> on|off
Above last 2 commands should be run when the port is stopped.
And <offload> can be one of "vlan_strip", "ipv4_cksum", ...

Add following testpmd run-time commands to support test of
new Tx offload API:
show port <port_id> tx_offload capabilities
show port <port_id> tx_offload configuration
port config <port_id> tx_offload <offload> on|off
port <port_id> txq <queue_id> tx_offload <offload> on|off
Above last 2 commands should be run when the port is stopped.
And <offload> can be one of "vlan_insert", "udp_cksum", ...

Signed-off-by: Wei Dai <wei.dai@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
2018-05-14 22:31:52 +01:00
Qiming Yang
dbb36bb2a1 doc: add XXV710 support in i40e guide
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
2018-05-14 22:31:52 +01:00
Yongseok Koh
7d6bf6b866 net/mlx5: add Multi-Packet Rx support
Multi-Packet Rx Queue (MPRQ a.k.a Striding RQ) can further save PCIe
bandwidth by posting a single large buffer for multiple packets. Instead of
posting a buffer per a packet, one large buffer is posted in order to
receive multiple packets on the buffer. A MPRQ buffer consists of multiple
fixed-size strides and each stride receives one packet.

Rx packet is mem-copied to a user-provided mbuf if the size of Rx packet is
comparatively small, or PMD attaches the Rx packet to the mbuf by external
buffer attachment - rte_pktmbuf_attach_extbuf(). A mempool for external
buffers will be allocated and managed by PMD.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
2018-05-14 22:31:52 +01:00
Yongseok Koh
9797bfcce1 net/mlx4: add new memory region support
This is the new design of Memory Region (MR) for mlx PMD, in order to:
- Accommodate the new memory hotplug model.
- Support non-contiguous Mempool.

There are multiple layers for MR search.

L0 is to look up the last-hit entry which is pointed by mr_ctrl->mru (Most
Recently Used). If L0 misses, L1 is to look up the address in a fixed-sized
array by linear search. L0/L1 is in an inline function -
mlx4_mr_lookup_cache().

If L1 misses, the bottom-half function is called to look up the address
from the bigger local cache of the queue. This is L2 - mlx4_mr_addr2mr_bh()
and it is not an inline function. Data structure for L2 is the Binary Tree.

If L2 misses, the search falls into the slowest path which takes locks in
order to access global device cache (priv->mr.cache) which is also a B-tree
and caches the original MR list (priv->mr.mr_list) of the device. Unless
the global cache is overflowed, it is all-inclusive of the MR list. This is
L3 - mlx4_mr_lookup_dev(). The size of the L3 cache table is limited and
can't be expanded on the fly due to deadlock. Refer to the comments in the
code for the details - mr_lookup_dev(). If L3 is overflowed, the list will
have to be searched directly bypassing the cache although it is slower.

If L3 misses, a new MR for the address should be created -
mlx4_mr_create(). When it creates a new MR, it tries to register adjacent
memsegs as much as possible which are virtually contiguous around the
address. This must take two locks - memory_hotplug_lock and
priv->mr.rwlock. Due to memory_hotplug_lock, there can't be any
allocation/free of memory inside.

In the free callback of the memory hotplug event, freed space is searched
from the MR list and corresponding bits are cleared from the bitmap of MRs.
This can fragment a MR and the MR will have multiple search entries in the
caches. Once there's a change by the event, the global cache must be
rebuilt and all the per-queue caches will be flushed as well. If memory is
frequently freed in run-time, that may cause jitter on dataplane processing
in the worst case by incurring MR cache flush and rebuild. But, it would be
the least probable scenario.

To guarantee the most optimal performance, it is highly recommended to use
an EAL option - '--socket-mem'. Then, the reserved memory will be pinned
and won't be freed dynamically. And it is also recommended to configure
per-lcore cache of Mempool. Even though there're many MRs for a device or
MRs are highly fragmented, the cache of Mempool will be much helpful to
reduce misses on per-queue caches anyway.

'--legacy-mem' is also supported.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
2018-05-14 22:31:52 +01:00
Yongseok Koh
2d684b911d net/mlx4: remove memory region support
This patch removes current support of Memory Region (MR) in order to
accommodate the dynamic memory hotplug patch. This patch can be compiled
but traffic can't flow and HW will raise faults. Subsequent patches will
add new MR support.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
2018-05-14 22:31:51 +01:00
Yongseok Koh
974f1e7ef1 net/mlx5: add new memory region support
This is the new design of Memory Region (MR) for mlx PMD, in order to:
- Accommodate the new memory hotplug model.
- Support non-contiguous Mempool.

There are multiple layers for MR search.

L0 is to look up the last-hit entry which is pointed by mr_ctrl->mru (Most
Recently Used). If L0 misses, L1 is to look up the address in a fixed-sized
array by linear search. L0/L1 is in an inline function -
mlx5_mr_lookup_cache().

If L1 misses, the bottom-half function is called to look up the address
from the bigger local cache of the queue. This is L2 - mlx5_mr_addr2mr_bh()
and it is not an inline function. Data structure for L2 is the Binary Tree.

If L2 misses, the search falls into the slowest path which takes locks in
order to access global device cache (priv->mr.cache) which is also a B-tree
and caches the original MR list (priv->mr.mr_list) of the device. Unless
the global cache is overflowed, it is all-inclusive of the MR list. This is
L3 - mlx5_mr_lookup_dev(). The size of the L3 cache table is limited and
can't be expanded on the fly due to deadlock. Refer to the comments in the
code for the details - mr_lookup_dev(). If L3 is overflowed, the list will
have to be searched directly bypassing the cache although it is slower.

If L3 misses, a new MR for the address should be created -
mlx5_mr_create(). When it creates a new MR, it tries to register adjacent
memsegs as much as possible which are virtually contiguous around the
address. This must take two locks - memory_hotplug_lock and
priv->mr.rwlock. Due to memory_hotplug_lock, there can't be any
allocation/free of memory inside.

In the free callback of the memory hotplug event, freed space is searched
from the MR list and corresponding bits are cleared from the bitmap of MRs.
This can fragment a MR and the MR will have multiple search entries in the
caches. Once there's a change by the event, the global cache must be
rebuilt and all the per-queue caches will be flushed as well. If memory is
frequently freed in run-time, that may cause jitter on dataplane processing
in the worst case by incurring MR cache flush and rebuild. But, it would be
the least probable scenario.

To guarantee the most optimal performance, it is highly recommended to use
an EAL option - '--socket-mem'. Then, the reserved memory will be pinned
and won't be freed dynamically. And it is also recommended to configure
per-lcore cache of Mempool. Even though there're many MRs for a device or
MRs are highly fragmented, the cache of Mempool will be much helpful to
reduce misses on per-queue caches anyway.

'--legacy-mem' is also supported.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
2018-05-14 22:31:51 +01:00
Yongseok Koh
d561b5dc13 net/mlx5: remove memory region support
This patch removes current support of Memory Region (MR) in order to
accommodate the dynamic memory hotplug patch. This patch can be compiled
but traffic can't flow and HW will raise faults. Subsequent patches will
add new MR support.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
2018-05-14 22:31:51 +01:00
Wei Dai
a4996bd89c ethdev: new Rx/Tx offloads API
This patch check if a input requested offloading is valid or not.
Any reuqested offloading must be supported in the device capabilities.
Any offloading is disabled by default if it is not set in the parameter
dev_conf->[rt]xmode.offloads to rte_eth_dev_configure() and
[rt]x_conf->offloads to rte_eth_[rt]x_queue_setup().
If any offloading is enabled in rte_eth_dev_configure() by application,
it is enabled on all queues no matter whether it is per-queue or
per-port type and no matter whether it is set or cleared in
[rt]x_conf->offloads to rte_eth_[rt]x_queue_setup().
If a per-queue offloading hasn't be enabled in rte_eth_dev_configure(),
it can be enabled or disabled for individual queue in
ret_eth_[rt]x_queue_setup().
A new added offloading is the one which hasn't been enabled in
rte_eth_dev_configure() and is reuqested to be enabled in
rte_eth_[rt]x_queue_setup(), it must be per-queue type,
otherwise trigger an error log.
The underlying PMD must be aware that the requested offloadings
to PMD specific queue_setup() function only carries those
new added offloadings of per-queue type.

This patch can make above such checking in a common way in rte_ethdev
layer to avoid same checking in underlying PMD.

This patch assumes that all PMDs in 18.05-rc2 have already
converted to offload API defined in 17.11 . It also assumes
that all PMDs can return correct offloading capabilities
in rte_eth_dev_infos_get().

In the beginning of [rt]x_queue_setup() of underlying PMD,
add offloads = [rt]xconf->offloads |
dev->data->dev_conf.[rt]xmode.offloads; to keep same as offload API
defined in 17.11 to avoid upper application broken due to offload
API change.
PMD can use the info that input [rt]xconf->offloads only carry
the new added per-queue offloads to do some optimization or some
code change on base of this patch.

Signed-off-by: Wei Dai <wei.dai@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
2018-05-14 22:31:51 +01:00
Ophir Munk
ce07b1514d net/mlx4: fix CRC stripping capability report
There are two capabilities related to CRC stripping:
1. mlx4 HW capability to perform CRC stripping on a received packet.
This capability is built in mlx4 HW. It should be returned by the API
call mlx4_get_rx_queue_offloads().
2. mlx4 driver capability to enable/disable HW CRC stripping. This
capability is dependent on the driver version.

Before this commit the second capability was falsely returned by
the mentioned API. This commit fixes it by returning the first
capability.
mlx4 HW performs CRC stripping by default and this capability is
always reported as "true".

The ability to enable/disable CRC stripping is supported since this
commit and requires OFED version 4.3-1.5.0.0 or rdma-core version v18.
CRC stripping will be done by default regardless of its configuration
when working with OFED or rdma-core versions earlier than those
previously specified or before this commit.

Fixes: de1df14e6e ("net/mlx4: support CRC strip toggling")
Cc: stable@dpdk.org

Signed-off-by: Ophir Munk <ophirmu@mellanox.com>
2018-05-14 22:31:51 +01:00