Commit Graph

179 Commits

Author SHA1 Message Date
Rahul Lakkireddy
46df488b27 net/cxgbe: fix control queue mbuf pool naming convention
When multiple Chelsio adapters are present, the current naming
convention of using underlying physical port number of the adapter
creates conflicts when allocating control queue mbuf pool for
multiple adapters and hence results in allocation failure. Fix by
using port_id from rte_eth_dev_data, instead of physical port number.

Fixes: 3a3aaabc7c ("net/cxgbe: add control queue to communicate filter requests")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-12-13 17:46:58 +00:00
Rahul Lakkireddy
27e5d9000c net/cxgbevf: fix illegal memory access when freeing MPS TCAM
Individual MPS TCAM entries are not allocated as separate entities.
All entries are allocated once as an array. So, fix bug with attempting
to free illegal memory location.

Also add missing MPS TCAM initialization for CXGBEVF.

Fixes: 6fda3f0ddd ("net/cxgbe: add API to program hardware MPS table")

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-11-14 00:35:53 +01:00
Rahul Lakkireddy
34ca5e3eb7 net/cxgbe: fix wrong ingress port value set in filter spec
Set the "value" in the filter spec and not the "mask". Also, remove
duplicate comparison for hardware supported match items already done
earlier.

Fixes: af44a57798 ("net/cxgbe: support to offload flows to HASH region")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-11-14 00:35:53 +01:00
Rahul Lakkireddy
f1e9d2afea net/cxgbe: increase completion wait time for flow operations
Under heavy load, flow related operations can take more time to
complete. Increase max completion wait time to 10 seconds. Also
increase max receive budget to read more replies from firmware
in every cycle.

Fixes: 9eb2c9a480 ("net/cxgbe: implement flow create operation")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-11-14 00:35:53 +01:00
Rahul Lakkireddy
15fb77f62c net/cxgbe: fix check for redefined match items
Fix issue where ethertype is set to 0x800 for IPv4 by ether match
item and IPv4 match item also inherently sets ethertype to 0x800.

Current logic returns error when IPv4 match item is parsed. So, fix
by only bailing if the redefined match items have different values.

Fixes: ee61f5113b ("net/cxgbe: parse and validate flows")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-11-14 00:35:53 +01:00
Rahul Lakkireddy
6507fb6f0a net/cxgbe: check Rx config before doing VLAN strip offload
Fixes: 436125e641 ("net/cxgbe: update to Rx/Tx offload API")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-11-14 00:35:53 +01:00
Rahul Lakkireddy
854f4bf07c net/cxgbevf: add PCI uninitialization for VF
Fixes: 2195df6d11 ("net/cxgbe: rework ethdev device allocation")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-11-14 00:35:53 +01:00
Ferruh Yigit
b74fd6b842 add missing static keyword to globals
Some global variables can indeed be static, add static keyword to them.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2018-10-29 02:01:08 +01:00
Thomas Monjalon
e16adf08e5 ethdev: free all common data when releasing port
This is a clean-up of common ethdev data freeing.
All data freeing are moved to rte_eth_dev_release_port()
and done only in case of primary process.

It is probably fixing some memory leaks for PMDs which were
not freeing all data.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-10-26 22:14:05 +02:00
Rahul Lakkireddy
f683a52006 net/cxgbe: add action to swap MAC addresses
Implement RTE_FLOW_ACTION_TYPE_MAC_SWAP to offload flows with
action to swap the source and destination MAC addresses in the
outermost Ethernet header.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-10-18 10:24:39 +02:00
Thomas Monjalon
5e046832f1 ethdev: rename memzones allocated for DMA
The helper rte_eth_dma_zone_reserve() is called by PMDs
when probing a new port.
It creates a new memzone with an unique name.
The name of this memzone was using the name of the driver
doing the probe.

In order to avoid assigning the driver before the end of the probing,
the driver name is removed from these memzone names.
The ethdev name (data->name) is not used because it may be too long
and may be not set at this stage of probing.

Syntax of old name: <driver>_<ring>_<port>_<queue>
Syntax of new name: eth_p<port>_q<queue>_<ring>

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Tested-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-10-17 10:26:59 +02:00
Rahul Lakkireddy
48f523f625 net/cxgbe: add flow actions to modify IP and TCP/UDP port
Query firmware for the new filter work request to offload flows with
actions to modify IP and TCP/UDP port addresses. When available,
translate IP and TCP/UDP port address modify actions to internal
hardware specification and offload the flow to hardware.

Original work by Shagun Agrawal

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-10-11 18:53:49 +02:00
Rahul Lakkireddy
0f3ff2445d net/cxgbe: announce Rx scatter offload
Scatter Rx is already supported by CXGBE PMD. So, add the missing
DEV_RX_OFFLOAD_SCATTER flag to the list of supported Rx offload
features.

Also, move the macros for supported list of offload features to
header file.

Fixes: 436125e641 ("net/cxgbe: update to Rx/Tx offload API")
Cc: stable@dpdk.org

Reported-by: Martin Weiser <martin.weiser@allegro-packets.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-09-28 01:41:03 +02:00
Ferruh Yigit
323e7b667f ethdev: make default behavior CRC strip on Rx
Removed DEV_RX_OFFLOAD_CRC_STRIP offload flag.
Without any specific Rx offload flag, default behavior by PMDs is to
strip CRC.

PMDs that support keeping CRC should advertise DEV_RX_OFFLOAD_KEEP_CRC
Rx offload capability.

Applications that require keeping CRC should check PMD capability first
and if it is supported can enable this feature by setting
DEV_RX_OFFLOAD_KEEP_CRC in Rx offload flag in rte_eth_dev_configure()

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Tomasz Duszynski <tdu@semihalf.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Jan Remes <remes@netcope.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
2018-09-14 20:08:41 +02:00
Shagun Agrawal
fefee7a619 net/cxgbe: add flow ops to match based on dest MAC
Add flow operations to match packets based on destination MAC address.
Allocate and program hardware MPS table with the destination MAC
address to be matched against. The returned MPS index is then used while
offloading flows to LETCAM (maskfull) and HASH (maskless) filter regions.

Also update existing mac_addr_set() to use the new MPS table API.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-09-14 20:08:41 +02:00
Shagun Agrawal
6fda3f0ddd net/cxgbe: add API to program hardware MPS table
Add API to program and manage hardware Multi Port Switch table. MPS
holds destination MAC addresses to be matched against incoming packets
for further rule processing. Packets not matching any entry in MPS table
will be dropped by default, unless the underlying port is in promiscuous
mode.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-09-14 20:08:41 +02:00
Shagun Agrawal
1decc62b1c net/cxgbe: add flow operations to offload VLAN actions
Add flow API operations to offload vlan push, pop, and rewrite actions.
For vlan push or rewrite actions, allocate and program an entry from
L2T table. Use the L2T index to program vlan actions for LETCAM
(maskfull) and HASH (maskless) filters.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-09-14 20:08:41 +02:00
Shagun Agrawal
23af667f15 net/cxgbe: add API to program hardware layer 2 table
Add API to program and manage hardware Layer 2 Table. L2T holds
information necessary to rewrite specific fields in packet, such
as destination MAC address and vlan id.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-09-14 20:08:41 +02:00
Shagun Agrawal
450f99ce7b net/cxgbe: fix memory access when parsing flow match items
Coverity issue: 293096
Fixes: ee61f5113b ("net/cxgbe: parse and validate flows")
Cc: stable@dpdk.org

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-09-03 19:33:19 +02:00
Shagun Agrawal
a0163693bc net/cxgbevf: do not allocate control queues
Control queues can not be allocated for VFs. So, add check to
only allocate control queues for PFs. This fixes adapter crash
when an attempt is made to allocate control queues for VFs.

Fixes: 3a3aaabc ("net/cxgbe: add control queue to communicate filter requests")

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-08-02 11:24:40 +02:00
Shagun Agrawal
217d181626 net/cxgbe: fix null dereference on CLIP failure
Coverity issue: 302872
Fixes: 3f2c1e209c ("net/cxgbe: add Compressed Local IP region")

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-08-02 11:03:16 +02:00
Rahul Lakkireddy
9726c51df0 net/cxgbe: fix init failure due to new flash parts
Add decode logic for new flash parts shipped with new Chelsio NICs
to fix initialization failure on these NICs.

Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-23 23:55:26 +02:00
Rahul Lakkireddy
d67692bacf net/cxgbevf: add missing Tx byte counters
Fixes: a0a344a8f7 ("net/cxgbe: add VF port statistics")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:52:22 +02:00
Rahul Lakkireddy
3abe171957 net/cxgbe: fix Rx channel map and queue type
Set the Rx channel map and ingress queue type properly to allow firmware
to manage the internal mapping correctly.

Fixes: 6c2809628c ("net/cxgbe: improve latency for slow traffic")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:52:22 +02:00
Rahul Lakkireddy
87a3ae3e1e net/cxgbe: query firmware for max queues available
Query firmware for max Tx and Rx queues that can be allocated.
Move the code to determine max queues to common place for both
PF and VF.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:52:21 +02:00
Rahul Lakkireddy
d97aa41544 net/cxgbe: enable more RSS hash functions
Enable RSS on IPv4 fragmented packets and IPv6 packets with extension
headers based on 2-tuple hash.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:52:21 +02:00
Rahul Lakkireddy
265af08e75 net/cxgbe: add link up and down ops
Add ops to set link up and down for both PF and VF. If wait_to_complete
is set, poll for link update for up to 10 seconds max.

Original work by Surendra Mobiya <surendra@chelsio.com>

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:52:21 +02:00
Shagun Agrawal
281c6e7baf net/cxgbe: support to redirect packets to egress port
Add action to redirect matched packets to specified egress physical
port without sending them to host.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
6b805d23a5 net/cxgbe: support to match on ingress physical port
Add support to match packets based on ingress physical port.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
a4279771c6 net/cxgbe: support to flush flows in HASH region
Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
ceaea6d8e5 net/cxgbe: query hit counters for flows in HASH region
Add interface to enable hit counters for flows offloaded in HASH
region.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
41dc98b082 net/cxgbe: support to delete flows in HASH region
Add interface to delete offloaded flows in HASH region. Use the
hash index saved during insertion to delete the corresponding flow.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
af44a57798 net/cxgbe: support to offload flows to HASH region
Add interface to offload flows to HASH region. Translate internal
filter specification to requests to offload flows to HASH region.
Save the returned hash index of the offloaded flow for deletion later.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
3f2c1e209c net/cxgbe: add Compressed Local IP region
CLIP region holds destination IPv6 addresses to be matched for
corresponding flows. Query firmware for CLIP resources and allocate
table to manage them. Also update LE-TCAM to use CLIP to reduce
number of slots needed to offload IPv6 flows.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:20:41 +02:00
Shagun Agrawal
78192b38a8 net/cxgbe: validate flows offloaded to HASH region
Fetch supported match items in HASH region. Ensure the mask
is all set for all the supported match items to be offloaded
to HASH region. Otherwise, offload them to LE-TCAM region.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:07:57 +02:00
Shagun Agrawal
3a381a4116 net/cxgbe: query firmware for HASH filter resources
Fetch available HASH filter resources and allocate table for managing
them. Currently only supported on Chelsio T6 family of NICs.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-07-04 22:07:53 +02:00
Ferruh Yigit
70815c9eca ethdev: add new offload flag to keep CRC
DEV_RX_OFFLOAD_KEEP_CRC offload flag is added. PMDs that support
keeping CRC should advertise this offload capability.

DEV_RX_OFFLOAD_CRC_STRIP flag will remain one more release
default behavior in PMDs are to keep the CRC until this flag removed

Until DEV_RX_OFFLOAD_CRC_STRIP flag is removed:
- Setting both KEEP_CRC & CRC_STRIP is INVALID
- Setting only CRC_STRIP PMD should strip the CRC
- Setting only KEEP_CRC PMD should keep the CRC
- Not setting both PMD should keep the CRC

A helper function rte_eth_dev_is_keep_crc() has been added to be able to
change the no flag behavior with minimal changes in PMDs.

The PMDs that doesn't report the DEV_RX_OFFLOAD_KEEP_CRC offload can
remove rte_eth_dev_is_keep_crc() checks next release, related code
commented to help the maintenance task.

And DEV_RX_OFFLOAD_CRC_STRIP has been added to virtual drivers since
they don't use CRC at all, when an application requires this offload
virtual PMDs should not return error.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Allain Legacy <allain.legacy@windriver.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-07-03 01:35:58 +02:00
Bruce Richardson
2898348c48 net/cxgbe: add to meson build
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
86910379d3 net/cxgbe: implement flow flush operation
Add API to flush all the filters under specified port.

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>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
8d3c12e193 net/cxgbe: implement flow query operation
Add API to query filter hit and byte counts from hardware.

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>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
da23bc9d33 net/cxgbe: implement flow destroy operation
Add API to construct delete filter work request to remove filter
at specified index in LE-TCAM (maskfull) region.

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>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
9eb2c9a480 net/cxgbe: implement flow create operation
Define filter work request API used to construct filter operations
to be communicated with firmware. These requests are sent via
control queue and completions come asynchronously in firmware event
queue.

Implement flow create operation to create filters in LE-TCAM
(maskfull) region at specified index.

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>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
3a3aaabc7c net/cxgbe: add control queue to communicate filter requests
Add control queue to communicate filter creation/deletion requests
with firmware. This API will be used by subsequent patches.

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>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
ee61f5113b net/cxgbe: parse and validate flows
Introduce rte_flow skeleton and implement validate operation.

Parse and convert <item>, <action>, <attributes> into hardware
specification. Perform validation, including basic sanity tests
and underlying device's supported filter capability checks.

Currently add support for:
<item>: IPv4, IPv6, TCP, and UDP.
<action>: Drop, Queue, and Count.

Also add sanity checks to ensure filters are created at specified
index in LE-TCAM region. The index in LE-TCAM region indicates
the filter rule's priority with index 0 having the highest priority.
If no index is specified, filters are created at closest available
free index.

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>
2018-06-14 19:27:50 +02:00
Shagun Agrawal
6f2a064bef net/cxgbe: query firmware for filter resources
Fetch available filter resources from firmware and allocate table for
book-keeping and managing filters in hardware. Also define the hardware
filter specification (ch_filter_specification) used to describe each
filter rule.

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>
2018-06-14 19:27:50 +02:00
Rahul Lakkireddy
e0ac655a36 net/cxgbe: report configured link auto-negotiation
Report current configured link auto-negotiation. Also initialize
rte_eth_link.

Coverity issue: 280648
Fixes: f5b3c7b293 ("net/cxgbevf: fix inter-VM traffic when physical link down")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
2018-06-14 19:27:50 +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
Rahul Lakkireddy
b84bcf4019 net/cxgbe: free resources during uninit
Move freeing up resources from dev_close() to dev_uninit(). This fixes
NULL pointer de-reference when accessing adapter context needed by
other ports under same PF, but had been freed up by the first port.
This can happen if only the first port is started up and the check
to free up all resources is still satisfied. When dev_close is
called for other ports, adapter context is NULL since it was freed
up by the first port.

Thus, by moving to dev_uninit() all the ports can be teared down
safely without need for extra checks.

Fixes: 2195df6d11 ("net/cxgbe: rework ethdev device allocation")

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
2018-05-14 22:32:23 +01:00
Thomas Monjalon
fbe90cdd77 ethdev: add probing finish function
A new hook function is added and called inside the PMDs at the end
of the device probing:
	- in primary process, after allocating, init and config
	- in secondary process, after attaching and local init

This new function is almost empty for now.
It will be used later to add some post-initialization processing.

For the PMDs calling the helpers rte_eth_dev_create() or
rte_eth_dev_pci_generic_probe(), the hook rte_eth_dev_probing_finish()
is called from here, and not in the PMD itself.

Note that the helper rte_eth_dev_create() could be used more,
especially for vdevs, avoiding some code duplication in PMDs.

Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
2018-05-14 22:31:53 +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