Commit Graph

224 Commits

Author SHA1 Message Date
Wenzhuo Lu
0790adeb56 ixgbe/base: support X550em_a device
Add new X550EM_a devices and their mac types, X550EM_a
and X550EM_a_vf.
Update the code to use the new devices and mac types.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-03-16 17:04:49 +01:00
Rahul Lakkireddy
5a9e303a38 cxgbe: fix setting wrong MTU
max_rx_pkt_len already includes ETHER_HDR_LEN and ETHER_CRC_LEN for the
mtu. But, the firmware also adds ETHER_HDR_LEN and ETHER_CRC_LEN to the
mtu specified. Fix by subtracting these values from the mtu before
passing it to firmware.

Fixes: 4b2eff452d ("cxgbe: enable jumbo frames")

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
2016-03-16 16:52:42 +01:00
Rahul Lakkireddy
8dca8cc5c6 cxgbe: fix allocated size for RSS table
The size of each entry in the port's rss table is actually 2 bytes
and not 1 byte. A segfault occurs when accessing part of port 0's rss
table because it gets overwritten by subsequent port 1's part of the
rss table. Fix by setting the size of each entry appropriately.

Fixes: 92c8a63223 ("cxgbe: add device configuration and Rx support")

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
2016-03-16 16:51:19 +01:00
Thomas Monjalon
39fee04fc0 doc: fix IPsec entry in the release notes
It was inserted in the "Resolved Issues" section.
Move the entry with the new features.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-03-15 19:51:07 +01:00
Stephen Hemminger
4d51afb5cd sched: keep track of RED drops
Add new statistic to keep track of drops due to RED.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2016-03-13 23:28:00 +01:00
Xutao Sun
dd76f93c2d ethdev: rework tunnel filtering structure
Change the fields of outer_mac and inner_mac in struct
rte_eth_tunnel_filter_conf from pointer to struct in order to
keep the code's readability.

Signed-off-by: Xutao Sun <xutao.sun@intel.com>
Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-03-13 15:26:55 +01:00
Wenzhuo Lu
d87c3058bb ixgbe: offload VxLAN and NVGRE Tx checksum on X550
The patch add VxLAN & NVGRE TX checksum off-load. When the flag of
outer IP header checksum offload is set, we'll set the context
descriptor to enable this checksum off-load.

Also update release notes for VxLAN & NVGRE checksum off-load support.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2016-03-13 11:52:58 +01:00
Wenzhuo Lu
1cbe755fef ethdev: rename UDP tunnel port functions
The names of function for tunnel port configuration are not
accurate. They're tunnel_add/del, better change them to
tunnel_port_add/del.
The old functions are directly replaced because the API and ABI
compatibility of ethdev are already broken in 16.04.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2016-03-13 11:44:33 +01:00
Wenzhuo Lu
22e77d4501 ixgbe: support L2 tunnel operations
Add support of l2 tunnel configuration and operations.
1, Support modifying ether type of a type of l2 tunnel.
2, Support enabling and disabling the support of a type of l2 tunnel.
3, Support enabling/disabling l2 tunnel tag insertion/stripping.
4, Support enabling/disabling l2 tunnel packets forwarding.
5, Support adding/deleting forwarding rules for l2 tunnel packets.
Only support E-tag now.

Also update the release note.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Shaopeng He <shaopeng.he@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
Tested-by: Yong Liu <yong.liu@intel.com>
2016-03-11 23:25:58 +01:00
Helin Zhang
19b16e2f64 ethdev: add vlan type when setting ether type
In order to set ether type of VLAN for single VLAN, inner
and outer VLAN, the VLAN type as an input parameter is added
to 'rte_eth_dev_set_vlan_ether_type()'.
In addition, corresponding changes in e1000, ixgbe and i40e
are also added.

It is an ABI break but ethdev library is already bumped for 16.04.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-03-11 22:21:06 +01:00
Sergio Gonzalez Monroy
d299106e8e examples/ipsec-secgw: add IPsec sample application
Sample app implementing an IPsec Security Geteway.
The main goal of this app is to show the use of cryptodev framework
in a "real world" application.

Currently only supported static IPv4 ESP IPsec tunnels for the following
algorithms:
- Cipher: AES-CBC, NULL
- Authentication: HMAC-SHA1, NULL

Not supported:
- SA auto negotiation (No IKE implementation)
- chained mbufs

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-03-11 11:06:29 +01:00
Declan Doherty
94b0ad8e0a null_crypto: add driver for null crypto operations
This patch provides the implementation of a NULL crypto PMD, which supports
NULL cipher and NULL authentication operations, which can be chained together
as follows:

- Authentication Only
- Cipher Only
- Authentication then Cipher
- Cipher then Authentication

As this is a NULL operation device the crypto operations which are submitted for
processing are not actually modified and are stored in a queue pairs processed
packets ring ready for collection when rte_cryptodev_burst_dequeue() is called.

The patch also contains the related unit tests function to test the PMDs
supported operations.

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2016-03-11 02:16:18 +01:00
John Griffin
53d8971cbe qat: fix AES-GCM decryption
AES GCM on the cryptodev API was giving invalid results
in some cases, due to an incorrect IV setting.

Added AES GCM in the QAT supported algorithms,
as encryption/decryption is fully functional.

Fixes: 1703e94ac5 ("qat: add driver for QuickAssist devices")

Signed-off-by: John Griffin <john.griffin@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-03-11 01:31:55 +01:00
Declan Doherty
eec136f3c5 aesni_gcm: add driver for AES-GCM crypto operations
This patch provides the implementation of an AES-NI accelerated crypto PMD
which is dependent on Intel's multi-buffer library, see the white paper
"Fast Multi-buffer IPsec Implementations on Intel®  Architecture  Processors"

This PMD supports AES_GCM authenticated encryption and authenticated
decryption using 128-bit AES keys

The patch also contains the related unit tests functions

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: John Griffin <john.griffin@intel.com>
2016-03-11 01:01:42 +01:00
Pablo de Lara
3aafc423cf snow3g: add driver for SNOW 3G library
Added new SW PMD which makes use of the libsso SW library,
which provides wireless algorithms SNOW 3G UEA2 and UIA2
in software.

This PMD supports cipher-only, hash-only and chained operations
("cipher then hash" and "hash then cipher") of the following
algorithms:
- RTE_CRYPTO_SYM_CIPHER_SNOW3G_UEA2
- RTE_CRYPTO_SYM_AUTH_SNOW3G_UIA2

The SNOW 3G hash and cipher algorithms, which are enabled
by this crypto PMD are implemented by Intel's libsso software
library. For library download and build instructions,
see the documentation included (doc/guides/cryptodevs/snow3g.rst)

The patch also contains the related unit tests function to test the PMD
supported operations.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2016-03-11 00:14:47 +01:00
Deepak Kumar Jain
a38dfe974b qat: add SNOW 3G
Signed-off-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-03-10 23:04:56 +01:00
Jasvinder Singh
88ac2fd99f pipeline: support packet redirection at action handlers
Currently, there is no mechanism that allows the pipeline ports (in/out)
and table action handlers to override the default forwarding decision
(as previously configured per input port or in the table entry). The port
(in/out) and table action handler prototypes have been changed to allow
pipeline action handlers (port in/out, table) to remove the selected
packets from the further pipeline processing and to take full ownership
for these packets. This feature will be helpful to implement functions
such as exception handling (e.g. TTL =0), load balancing etc.

Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2016-03-10 01:28:29 +01:00
Michal Kobylinski
f1f7261838 lpm: add a new config structure for IPv4
A new rte_lpm_config structure is used so LPM library will allocate
exactly the amount of memory which is necessary to hold application’s
rules.

Signed-off-by: Michal Kobylinski <michalx.kobylinski@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>
2016-03-09 23:05:05 +01:00
Michal Kobylinski
dc81ebbaca lpm: extend IPv4 next hop field
This patch extend next_hop field from 8-bits to 24-bits in LPM library
for IPv4.

Added versioning symbols to functions and updated
library and applications that have a dependency on LPM library.

Signed-off-by: Michal Kobylinski <michalx.kobylinski@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>
2016-03-09 22:57:43 +01:00
Jingjing Wu
173cd7910f doc: fix API change in release notes
Move the structure ``rte_eth_fdir_masks`` change announcement from ABI
to API in release notes.

Fixes: 1409f127d7 (ethdev: fix byte order consistency of flow director)

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
2016-03-09 18:00:06 +01:00
Thomas Monjalon
9f9a35bfe6 cmdline: bump library version
There was an ABI change in the release 16.04.

Fixes: fb76dd26a3 ("cmdline: increase command line buffer")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
2016-03-09 16:13:14 +01:00
Thomas Monjalon
cfd2279ea6 ethdev: bump library version
There was an ABI change and more are coming in the release 16.04.

Fixes: a9963a86b2 ("ethdev: increase RETA entry size")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
2016-03-09 16:13:09 +01:00
Harry van Haaren
dd3e00138d eal: check if primary process is alive
This patch adds a new function to the EAL API:
int rte_eal_primary_proc_alive(const char *path);

The function indicates if a primary process is alive right now.
This functionality is implemented by testing for a write-
lock on the config file, and the function tests for a lock.

The use case for this functionality is that a secondary
process can wait until a primary process starts by polling
the function and waiting. When the primary is running, the
secondary continues to poll to detect if the primary process
has quit unexpectedly, the secondary process can detect this.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Maryam Tahhan <maryam.tahhan@intel.com>
2016-03-09 16:13:09 +01:00
Helin Zhang
b7cf8e1559 igb_uio: deprecate extended tag
It deprecates sys files of 'extended_tag' and
'max_read_request_size' which was not documented.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
2016-03-09 01:51:01 +01:00
Helin Zhang
68f7759382 pci: remove config of extended tag
Remove pci configuration of 'extended tag' and 'max read request
size', as they are not required by all devices and it lets PMD to
configure them if necessary.
In addition, 'pci_config_space_set()' is deprecated.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-03-09 01:51:00 +01:00
Helin Zhang
56465cfaf9 i40e: enable extended tag
PCIe feature of 'Extended Tag' is important for 40G performance.
It adds its enabling during each port initialization, to ensure
the high performance.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
2016-03-09 01:51:00 +01:00
Pablo de Lara
6e5794d008 doc: add known clang compilation issue
Add known issue about DPDK not compiling on some CPUs
with clang versions older than 3.7.0.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
2016-03-07 22:28:00 +01:00
Thomas Monjalon
8827234d70 doc: tidy sections in release notes
Fixes: 5499c1fc9b ("examples/vhost: fix mbuf allocation")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-03-04 16:51:20 +01:00
Jingjing Wu
1409f127d7 ethdev: fix byte order consistency of flow director
Fixed issue of byte order in ethdev library that the structure
for setting fdir's mask and flow entry is inconsist and made
inputs of mask be in big endian.

Fixes: 2d4c1a9ea2 ("ethdev: add new flow director masks")
Fixes: 76c6f89e80 ("ixgbe: support new flow director masks")

Reported-by: Yaacov Hazan <yaacovh@mellanox.com>
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Zhe Tao <zhe.tao@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-03-04 16:50:58 +01:00
Nelio Laranjeiro
a9963a86b2 ethdev: increase RETA entry size
Several NICs can handle 512 entries/queues in their RETA table,
an 8 bit field is not large enough for them.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
2016-03-03 20:39:47 +01:00
Nelio Laranjeiro
fb76dd26a3 cmdline: increase command line buffer
Allow long command lines in testpmd (like flow director with IPv6, ...).

Signed-off-by: John McNamara <john.mcnamara@intel.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
2016-03-03 20:39:47 +01:00
Santosh Shukla
f4730aa6e7 config: enable virtio for ARM
removed _VIRTIO_PMD=n from arch config and let arch to use _VIRTIO_PMD
from config/common_linuxapp.

Signed-off-by: Santosh Shukla <sshukla@mvista.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-03-03 14:25:09 +01:00
Didier Pallard
9792848c65 hash: fix CRC32c computation
Fix crc32c hash functions to return a valid crc32c value for
data lengths not multiple of 4 bytes.
ARM code is not tested.

Fixes: af75078fec ("first public release")

Signed-off-by: Didier Pallard <didier.pallard@6wind.com>
Acked-by: David Marchand <david.marchand@6wind.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-03-01 14:37:26 +01:00
Huawei Xie
9ec201f5d6 mbuf: provide bulk allocation
rte_pktmbuf_alloc_bulk allocates a bulk of packet mbufs.

There is related thread about this bulk API.
http://dpdk.org/dev/patchwork/patch/4718/
Thanks to Konstantin's loop unrolling.

Attached the wiki page about duff's device. It explains the performance
optimization through loop unwinding, and also the most dramatic use of
case label fall-through.
https://en.wikipedia.org/wiki/Duff%27s_device

In this implementation, while() loop is used because we could not assume
count is strictly positive. Using while() loop saves one line of check.

Signed-off-by: Gerald Rogers <gerald.rogers@intel.com>
Signed-off-by: Huawei Xie <huawei.xie@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2016-02-29 17:26:38 +01:00
Jianfeng Tan
5499c1fc9b examples/vhost: fix mbuf allocation
How to reproduce:

1. Start vhost-switch
./examples/vhost/build/vhost-switch -c 0x3 -n 4 -- -p 1 --stat 0
2. Start VM with a virtio port
$ $QEMU -smp cores=2,sockets=1 -m 4G -cpu host -enable-kvm \
  -chardev socket,id=char1,path=<path to vhost-user socket> \
  -device virtio-net-pci,netdev=vhostuser1 \
  -netdev vhost-user,id=vhostuser1,chardev=char1
  -object memory-backend-file,id=mem,size=4G,mem-path=<hugetlbfs path>,share=on \
  -numa node,memdev=mem -mem-prealloc \
  -hda <path to VM img>
3. Start l2fwd in VM
$ ./examples/l2fwd/build/l2fwd -c 0x1 -n 4 -m 1024 -- -p 0x1
4. Use ixia to inject packets in a small data bit rate.

Error:

vhost-switch keeps printing error message:
failed to allocate memory for mbuf.

Root cause:

How many mbufs allocated for a port is calculated by below formula.
NUM_MBUFS_PER_PORT = ((MAX_QUEUES*RTE_TEST_RX_DESC_DEFAULT) + \
(num_switching_cores*MAX_PKT_BURST) + \
(num_switching_cores*RTE_TEST_TX_DESC_DEFAULT) +\
(num_switching_cores*MBUF_CACHE_SIZE))
We suppose num_switching_cores is 1 and MBUF_CACHE_SIZE is 128.
And when initializing port, master core fills mbuf mempool cache,
so there would be some left in that cache, for example 121.
So total mbufs which can be used is:
(MAX_PKT_BURST + MBUF_CACHE_SIZE - 121) = (32 + 128 - 121) = 39.
What makes it worse is that there is a buffer to store mbufs
(which will be tx_burst to physical port), if it occupies some mbufs,
there will be possible < 32 mbufs left, so vhost dequeue prints out
this msg.

In all, it fails to include master core's mbuf mempool cache.

Reported-by: Qian Xu <qian.q.xu@intel.com>
Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
2016-02-28 22:35:59 +01:00
Pablo de Lara
a324c45a6f aesni_mb: fix wrong return value
cryptodev_aesni_mb_init was returning the device id of
the device just created, but rte_eal_vdev_init
(the function that calls the first one), was expecting 0 or
negative value.
This made impossible to create more than one aesni_mb device
from command line.

Fixes: 924e84f873 ("aesni_mb: add driver for multi buffer based crypto")

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Declan Doherty <declan.doherty@intel.com>
2016-02-24 15:02:52 +01:00
Yuanhan Liu
d639996a74 vhost: enable log_shmfd protocol feature
To claim that we support vhost-user live migration support:
SET_LOG_BASE request will be send only when this feature flag
is set.

Besides this flag, we actually need another feature flag set
to make vhost-user live migration work: VHOST_F_LOG_ALL.
Which, however, has been enabled long time ago.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
2016-02-19 15:53:38 +01:00
Jijiang Liu
859b480d5a vhost: add guest offload setting
Add guest offload setting in vhost lib.

Virtio 1.0 spec (5.1.6.4 Processing of Incoming Packets) says:

    1. If the VIRTIO_NET_F_GUEST_CSUM feature was negotiated, the
       VIRTIO_NET_HDR_F_NEEDS_CSUM bit in flags can be set: if so,
       the packet checksum at offset csum_offset from csum_start
       and any preceding checksums have been validated. The checksum
       on the packet is incomplete and csum_start and csum_offset
       indicate how to calculate it (see Packet Transmission point 1).

    2. If the VIRTIO_NET_F_GUEST_TSO4, TSO6 or UFO options were
       negotiated, then gso_type MAY be something other than
       VIRTIO_NET_HDR_GSO_NONE, and gso_size field indicates the
       desired MSS (see Packet Transmission point 2).

In order to support these features, the following changes are added,

1. Extend 'VHOST_SUPPORTED_FEATURES' macro to add the offload features negotiation.

2. Enqueue these offloads: convert some fields in mbuf to the fields in virtio_net_hdr.

There are more explanations for the implementation.

For VM2VM case, there is no need to do checksum, for we think the
  data should be reliable enough, and setting VIRTIO_NET_HDR_F_NEEDS_CSUM
  at RX side will let the TCP layer to bypass the checksum validation,
  so that the RX side could receive the packet in the end.

In terms of us-vhost, at vhost RX side, the offload information is
  inherited from mbuf, which is in turn inherited from TX side. If we
  can still get those info at RX side, it means the packet is from
  another VM at same host. So, it's safe to set the
  VIRTIO_NET_HDR_F_NEEDS_CSUM, to skip checksum validation.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-02-17 22:56:44 +01:00
Jijiang Liu
d0cf91303d vhost: add Tx offload capabilities
Add vhost TX offload (CSUM and TSO) support capabilities in vhost lib.

In order to support these features, and the following changes are added,

1. Extend 'VHOST_SUPPORTED_FEATURES' macro to add the offload features
   negotiation.

2. Dequeue TX offload: convert the fileds in virtio_net_hdr to the
   related fileds in mbuf.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-02-17 22:56:44 +01:00
Bruce Richardson
ad8f40dabe doc: rename release notes 2.3 to 16.04
Updated release documentation to reflect new numbering scheme.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-02-10 22:43:32 +01:00
Thomas Monjalon
4b15247150 doc: drop old naming of the project
It was requested by Intel, more than one year ago, to replace the name
"Intel DPDK" by "DPDK".
Some references to the old name were still in some docs and code comments,
leading to confusion.

Fixes: ac8ada004c ("doc: remove Intel references from release notes")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2016-02-10 15:47:51 +01:00
Yuanhan Liu
6ba1f63b5a virtio: support specification 1.0
Modern (v1.0) virtio pci device defines several pci capabilities.
Each cap has a configure structure corresponding to it, and the
cap.bar and cap.offset fields tell us where to find it.

Firstly, we map the pci resources by rte_eal_pci_map_device().
We then could easily locate a cfg structure by:

    cfg_addr = dev->mem_resources[cap.bar].addr + cap.offset;

Therefore, the entrance of enabling modern (v1.0) pci device support
is to iterate the pci capability lists, and to locate some configs
we care; and they are:

- common cfg

  For generic virtio and virtqueue configuration, such as setting/getting
  features, enabling a specific queue, and so on.

- nofity cfg

  Combining with `queue_notify_off' from common cfg, we could use it to
  notify a specific virt queue.

- device cfg

  Where virtio_net_config structure is located.

- isr cfg

  Where to read isr (interrupt status).

If any of above cap is not found, we fallback to the legacy virtio
handling.

If succeed, hw->vtpci_ops is assigned to modern_ops, where all
operations are implemented by reading/writing a (or few) specific
configuration space from above 4 cfg structures. And that's basically
how this patch works.

Besides those changes, virtio 1.0 introduces a new status field:
FEATURES_OK, which is set after features negotiation is done.

Last, set the VIRTIO_F_VERSION_1 feature flag.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Tested-by: Qian Xu <qian.q.xu@intel.com>
Reviewed-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Tested-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Acked-by: Huawei Xie <huawei.xie@intel.com>
2016-02-03 16:07:50 +01:00
John McNamara
228d0c681c doc: add example text to release notes
Added example text to each of the release notes sections to show
the preferred format.

Signed-off-by: John McNamara <john.mcnamara@intel.com>
2016-02-03 16:07:49 +01:00
Thomas Monjalon
f1f8f0987d doc: remove DPDK from guide titles
In HTML and PDF guides, it is clear in the header that the doc
is related to the DPDK.
So "DPDK" is redundant and can be removed from FAQ and release notes
titles to improve consistency.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
2015-12-17 16:02:26 +01:00
Thomas Monjalon
aaebae695b doc: init next release notes
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
2015-12-17 16:02:13 +01:00
Nelio Laranjeiro
0ae454a327 doc: fix ABI change announce for RETA configuration
Replace "entries" by "queues", it clarifies the case.

Fixes: bd3cea78ab ("doc: announce ABI change for RETA configuration")

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
2015-12-15 17:14:47 +01:00
Rahul Lakkireddy
954f1545a1 doc: announce ABI change for extending filtering
Current filtering support will be enhanced to accommodate support
for Chelsio T5 hardware filtering support.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-12-15 15:24:36 +01:00
John McNamara
7e37aef78c doc: clean up index files
Remove **Contents** and |Today| from the rst doc index files since
these are already added automatically to PDF files and are of
little value to the Html files where the Contents is shown in a
sidebar.

Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2015-12-15 13:50:42 +01:00
John McNamara
2fe68f322a doc: fix spellings
Fix various spellings in rst docs.

Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2015-12-15 13:50:42 +01:00
Harry van Haaren
7f92f32f19 doc: add statistics fixes in release notes
This patch updates the release notes to include the changes
made (by me), which were not appropriately documented at the time.
Hence, this patch fixes a number of missing docs,

Fixes: e81a315e5d ("ixgbe: add MAC short packet discard count to Rx errors")
Fixes: 48dd1a82a6 ("ixgbe: remove mac fault counts from Rx errors")
Fixes: 256ff05a9c ("ixgbe: fix Rx errors statistics for UDP checksum")

Also, the CRC byte removal was not added to release notes, so
Fixes: 156c5a8cf9 ("e1000: remove CRC size from byte counters")
Fixes: c03fcee9ab ("ixgbe: remove CRC size from byte counters")
Fixes: 0834d1524d ("i40e: remove CRC size from byte counters")

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
2015-12-15 13:50:42 +01:00