Commit Graph

3653 Commits

Author SHA1 Message Date
Marvin Liu
ccb10995c2 net/virtio: add election for vectorized path
Rewrite vectorized path selection logic. Default setting comes from
vectorized devarg, then checks each criteria.

Packed ring vectorized path need:
    AVX512F and required extensions are supported by compiler and host
    VERSION_1 and IN_ORDER features are negotiated
    mergeable feature is not negotiated
    LRO offloading is disabled

Split ring vectorized rx path need:
    mergeable and IN_ORDER features are not negotiated
    LRO, chksum and vlan strip offloadings are disabled

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Marvin Liu
6494b9a9b2 net/virtio: add vectorized packed ring Tx
Optimize packed ring Tx path like Rx path. Split Tx path into batch and
single Tx functions. Batch function is further optimized by AVX512
instructions.

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Marvin Liu
77d66da838 net/virtio: add vectorized packed ring Rx
Optimize packed ring Rx path with SIMD instructions. Solution of
optimization is pretty like vhost, is that split path into batch and
single functions. Batch function is further optimized by AVX512
instructions.

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Marvin Liu
6b7eefbceb net/virtio-user: add parameter to enable vectorized path
Add new devarg for virtio user device vectorized path selection.
By default vectorized path is disabled.

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Marvin Liu
4710e16a4a net/virtio: add parameter to enable vectorized path
Previously, virtio split ring vectorized path was enabled by default.
This is not suitable for everyone because that path does not follow
virtio spec. Add new devarg for virtio vectorized path selection. By
default vectorized path is disabled.

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Maxime Coquelin
fd82f39727 doc: remove virtio vector PMD from NIC features table
The goal is to make the table more readable.

Mark as partially supported features that are supported in
the generic Virtio driver but not in the vectorized ones.

Suggested-by: Thomas Monjalon <thomas@monjalon.net>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Wei Zhao
5b728485d6 doc: add i40e limitation for flow director
Each PCTYPE can only have one specific FDIR input set at one time.
Add input set requirement info to i40e doc.

Bugzilla ID: 403
Fixes: 14c66a451e ("net/i40e: flush tunnel filters")
Cc: stable@dpdk.org

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2020-05-05 15:54:25 +02:00
David Marchand
ebaee64097 trace: simplify trace point headers
Invert the current trace point headers logic by making
rte_trace_point_register.h include rte_trace_point.h.

There is no more need for a RTE_TRACE_POINT_REGISTER_SELECT special macro
since including rte_trace_point_register.h itself means we want to
register trace points.

The unexplained "provider" notion is removed from the documentation and
rte_trace_point_provider.h is merged into rte_trace_point.h.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2020-05-06 13:50:32 +02:00
Nithin Dabilpuram
cafe124259 doc: add l3fwd-graph application user guide
Adding the user guide for l3fwd graph application.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
2020-05-05 23:46:36 +02:00
Jerin Jacob
4dc6d8e63c doc: add graph library guide
Adding programmer's guide for Graph library and the inbuilt nodes.
This patch also updates the release note for the new libraries.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
2020-05-05 23:46:21 +02:00
Pavan Nikhilesh
0555f11c2e node: add generic IPv4 lookup
Add IPv4 lookup process function for ip4_lookup node.
This node performs LPM lookup using simple RTE_LPM API on every packet
received and forwards it to a next node that is identified by lookup
result.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
2020-05-05 23:40:22 +02:00
Nithin Dabilpuram
947d7f682f node: add ethdev control
Add ctrl api to setup ethdev_rx and ethdev_tx node.
This ctrl api clones 'N' number of ethdev_rx and ethdev_tx
nodes with specific (port, queue) pairs updated in their context.
All the ethdev ports and queues are setup before this api
is called.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
2020-05-05 23:38:35 +02:00
Nithin Dabilpuram
13fcf8aff7 node: add logging and null node
Add log infra for node specific logging.
Also, add null rte_node that just ignores all the objects
directed to it.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
2020-05-05 23:37:43 +02:00
Jerin Jacob
40d4f51403 graph: implement fastpath routines
Adding implementation for rte_graph_walk() API. This will perform a walk
on the circular buffer and call the process function of each node
and collect the stats if stats collection is enabled.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
2020-05-05 23:32:02 +02:00
Jerin Jacob
a2da742768 graph: define API
Graph architecture abstracts the data processing functions as
"node" and "link" them together to create a complex "graph" to enable
reusable/modular data processing functions.

These APIs enables graph framework operations such as create, lookup,
dump and destroy on graph and node operations such as clone,
edge update, and edge shrink, etc. The API also allows creating the
stats cluster to monitor per graph and per node stats.

This patch defines the public API for graph support.
This patch also adds support for the build infrastructure and
update the MAINTAINERS file for the graph subsystem.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
2020-05-05 23:27:49 +02:00
Olivier Matz
c0280d5d8a mempool: return 0 if area is too small on populate
Change rte_mempool_populate_iova() and rte_mempool_populate_virt() to
return 0 instead of -EINVAL when there is not enough room to store one
object, as it can be helpful for applications to distinguish this
specific case.

As this is an ABI change, use symbol versioning to preserve old
behavior for binary applications.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>
2020-05-05 00:27:05 +02:00
Xiaolong Ye
97fbfe5a95 doc: fix log level example in Linux guide
Now we need to add prefix like lib. to enable the log,
also changing val 8 to "debug"" which would be more descriptive.

Fixes: ffb9fd1b08 ("log: update legacy modules dynamic logs regex")
Cc: stable@dpdk.org

Reported-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
2020-04-26 22:50:03 +02:00
Jeff Guo
a8a544890f app/testpmd: add new types to RSS hash commands
Add some new types, such as eth/l2-src-only/l2-dst-only/svlan/cvlan/
l2tpv3/esp/ah/pfcp types into RSS hash commands, it could be used
to configure these rss input set by cmdline.

Example flow commands was:
testpmd>flow create 0 ingress pattern eth / ipv4 / l2tpv3oip / end \
	actions rss types l2tpv3 end key_len 0 queues end / end

port config commands was:
testpmd>port config all rss l2tpv3

Signed-off-by: Jeff Guo <jia.guo@intel.com>
Acked-by: Ori Kam <orika@mellanox.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
2020-04-21 18:03:26 +02:00
Jeff Guo
7be10c3004 net/iavf: add RSS configuration for VF
The VF must be capable of configuring RSS. Add a virtchnl handler to
parse a specific RSS configuration, and process the configuration for
VFs, such as add or delete a RSS rule.

Signed-off-by: Jeff Guo <jia.guo@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>
2020-04-21 18:03:26 +02:00
Dong Zhou
44bf3c796b ethdev: support flow aging
One of the reasons to destroy a flow is the fact that no packet matches
the flow for "timeout" time.
For example, when TCP\UDP sessions are suddenly closed.

Currently, there is not any DPDK mechanism for flow aging and the
applications use their own ways to detect and destroy aged-out flows.

The flow aging implementation need include:
- A new rte_flow action: RTE_FLOW_ACTION_TYPE_AGE to set the timeout and
  the application flow context for each flow.
- A new ethdev event: RTE_ETH_EVENT_FLOW_AGED for the driver to report
  that there are new aged-out flows.
- A new rte_flow API: rte_flow_get_aged_flows to get the aged-out flows
  contexts from the port.
- Support input flow aging command line in Testpmd.

The new event type addition in the enum is flagged as an ABI breakage,
so an ignore rule is added for these reasons:
- It is not changing value of existing types (except MAX)
- The new value is not used by existing API if the event is not
  registered
In general, it is safe adding new ethdev event types at the end of the
enum, because of event callback registration mechanism.

Signed-off-by: Dong Zhou <dongz@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-04-21 17:34:05 +02:00
Simei Su
d5eb3e600d net/iavf: support flow director basic rule
This patch adds FDIR create/destroy/validate function in AVF.
Common pattern and queue/qgroup/passthru/drop actions are supported.

Signed-off-by: Simei Su <simei.su@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>
2020-04-21 13:57:09 +02:00
Suanming Mou
d1b31b7c03 doc: add mlx5 flow memory optimization to release notes
Add flow memory optimization item.

Signed-off-by: Suanming Mou <suanmingm@mellanox.com>
Acked-by: Raslan Darawsheh <rasland@mellanox.com>
2020-04-21 13:57:09 +02:00
Somnath Kotur
02a95625fe net/bnxt: add flow stats in extended stats
This patch allows to display flow stats in extended stats.
To do this, DMA-able memory is registered with the FW during device
initialization. Then the driver uses an alarm thread to query the
per flow stats using the HWRM_CFA_COUNTER_QSTATS HWRM command at
regular intervals and stores it locally which will be displayed
when the application queries the xstats.
The DMA-able memory is unregistered during driver cleanup.
This functionality can be enabled using the flow-xstat devarg and
will be disabled by default. The intention behind this is to allow
stats to be displayed for all the flows in one shot instead of
querying one at a time.

Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
2020-04-21 13:57:09 +02:00
Ajit Khaparde
5f9374de2a net/bnxt: add PCI function stats to extended stats
HWRM API allows drivers to query stats per PCI function.
These stats can provide some useful information in certain
circumstances.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
2020-04-21 13:57:09 +02:00
Ivan Dyukov
b0db4bea00 net/virtio-user: adding link speed parameter
virtio driver already parses speed devarg. virtio-user should add
it to list of valid devargs and call eth_virtio_dev_init function
which init speed value.

eth_virtio_dev_init already is called from virtio_user_pmd_probe
function. The only change is required to enable speed devargs:
adding speed to list of valid devargs.

Signed-off-by: Ivan Dyukov <i.dyukov@samsung.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-04-21 13:57:09 +02:00
Ivan Dyukov
49119e3855 net/virtio: add link speed parameter
Some applications like pktgen use link speed to calculate
transmission rate. It limits outcome traffic to hardcoded 10G.

This patch adds speed devarg which allows to configure
link speed of virtio device.

Signed-off-by: Ivan Dyukov <i.dyukov@samsung.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-04-21 13:57:09 +02:00
Xuan Ding
b1692872aa doc: add note for vhost builtin example
Add memory pre-allocation note for vhost example when enabling
"builtin-net-driver".

Signed-off-by: Xuan Ding <xuan.ding@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-04-21 13:57:08 +02:00
Venkat Duvvuru
2f31273211 net/bnxt: enable meson build on TruFlow
Include tf_ulp & tf_core directories and the files inside them.

Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2020-04-21 13:57:08 +02:00
Bernard Iremonger
14faf8e998 net/i40e: add ESP patterns
Add ESP patterns to i40e_flow_parse_rss_pattern().
Update i40e PMD user guide with download link for esp-ah.pkg file.

Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2020-04-21 13:57:08 +02:00
John Daley
510aecab17 net/enic: support flow API RSS ranges on outer headers
Support rte_flow RSS action on outer headers (level 0). RSS ranges on
the non-default port is OK.
Restrictions:
 - The RETA is ignored. The hash function is simply applied across
   the RSS queue range.
 - The queues used in the RSS group must be sequential.
 - There is a performance hit if the number of queues is not a power
   of 2.

Signed-off-by: John Daley <johndale@cisco.com>
Reviewed-by: Hyong Youb Kim <hyonkim@cisco.com>
2020-04-21 13:57:08 +02:00
Alexander Kozyrev
ecb160456a net/mlx5: add device parameter for MPRQ stride size
Define a device parameter to configure log 2 of a stride size for MPRQ
- mprq_log_stride_size. User is able to specify a stride size in a range
allowed by an underlying hardware. The default stride size is defined as
2048 bytes to encompass most commonly used packet sizes in the Internet
(MTU 1518 and less) and will be used in case a maximum configured packet
size cannot fit into the largest possible stride size. Otherwise a
stride size is set to a large enough value to encompass a whole packet.

Cc: stable@dpdk.org

Signed-off-by: Alexander Kozyrev <akozyrev@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-04-21 13:57:08 +02:00
Chenxu Di
feaae285b3 net/i40e: support hash configuration in RSS flow
This patch supports:

- Symmetric hash configuration
- Hash input set configuration

Signed-off-by: Chenxu Di <chenxux.di@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2020-04-21 13:57:08 +02:00
Alvin Zhang
746664d546 net/igc: support flow API
Below type of flows are supported:
ether-type filter, 2-tuple filter, SYN filter, RSS.
Update docs too.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:08 +02:00
Alvin Zhang
5f266d0d8c net/igc: support VLAN
Below ops ware added:
vlan_filter_set
vlan_offload_set
vlan_tpid_set
vlan_strip_queue_set

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:08 +02:00
Alvin Zhang
bd3fcf0d0f net/igc: support RSS
Below ops are added:
reta_update
reta_query
rss_hash_update
rss_hash_conf_get

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:08 +02:00
Alvin Zhang
0d415cd8e3 net/igc: support flow control
Update feature list too.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:08 +02:00
Alvin Zhang
9417098fdf net/igc: enable Rx queue interrupts
Setup NIC to generate MSI-X interrupts.
Set the IVAR register to map interrupt causes to vectors.
Implement interrupt enable/disable functions.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Alvin Zhang
e6defdfddc net/igc: enable statistics
Enable base statistics, extend statistics and per-queue statistics.

Below ops are added:
stats_get
xstats_get
xstats_get_by_id
xstats_get_names_by_id
xstats_get_names
stats_reset
xstats_reset
queue_stats_mapping_set

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Alvin Zhang
a5aeb2b9e2 net/igc: support Rx and Tx
Below ops are added too:
mac_addr_add
mac_addr_remove
mac_addr_set
set_mc_addr_list
mtu_set
promiscuous_enable
promiscuous_disable
allmulticast_enable
allmulticast_disable
rx_queue_setup
rx_queue_release
rx_queue_count
rx_descriptor_done
rx_descriptor_status
tx_descriptor_status
tx_queue_setup
tx_queue_release
tx_done_cleanup
rxq_info_get
txq_info_get
dev_supported_ptypes_get

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Alvin Zhang
4f09bc55ac net/igc: implement device base operations
Bellow ops are implemented:
dev_configure
dev_start
dev_stop
dev_close
dev_reset
dev_set_link_up
dev_set_link_down
link_update
fw_version_get
dev_led_on
dev_led_off

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Alvin Zhang
66fde1b943 net/igc: add skeleton
Implement device detection and loading.
Add igc driver guide docs.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Sivaprasad Tummala
f5f093d1c5 net/vhost: add options for linear and external buffer
Added vHost PMD arguments 'linear-buffer' and 'ext-buffer'
to configure  'RTE_VHOST_USER_LINEARBUF_SUPPORT' and
'RTE_VHOST_USER_EXTBUF_SUPPORT' flags in the vhost library

Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-04-21 13:57:07 +02:00
Ferruh Yigit
f51ecf2fe0 net/null: add argument for no Rx
Add an new device argument 'no-rx', which will prevent PMD receiving
packets.

This is useful for testing when a PMD is needed only to send packets to.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Ferruh Yigit
62a667f386 doc: add net null PMD guide
Net null PMD was missing documentation, adding it.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-04-21 13:57:07 +02:00
Qiming Yang
ff2d0c345c net/iavf: support generic flow API
This patch added iavf_flow_create, iavf_flow_destroy,
iavf_flow_flush and iavf_flow_validate support,
these are used to handle all the generic filters.

This patch supported basic L2, L3, L4 and GTPU patterns.

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2020-04-21 13:57:07 +02:00
Michal Krawczyk
fe9a344c5b doc: add notes on ENA usage on metal instances
As AWS metal instances are supporting IOMMU, the usage of igb_uio or
vfio-pci can lead to a problems (when to use which module), especially
that the vfio-pci isn't supporting SMMU on arm64.

To clear up the problem of using those modules in various setup
conditions (with or without IOMMU) on metal instances, more detailed
explanation was added.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Guy Tzalik <gtzalik@amazon.com>
2020-04-21 13:57:07 +02:00
Michal Krawczyk
83fd97b206 net/ena: reuse zero length Rx descriptor
Some ENA devices can pass to the driver descriptor with length 0. To
avoid extra allocation, the descriptor can be reused by simply putting
it back to the device.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Guy Tzalik <gtzalik@amazon.com>
2020-04-21 13:57:07 +02:00
Michal Krawczyk
33dde075fc net/ena: disable meta caching
In the LLQ (Low-latency queue) mode, the device can indicate that meta
data descriptor caching is disabled. In that case the driver should send
valid meta descriptor on every Tx packet.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Guy Tzalik <gtzalik@amazon.com>
2020-04-21 13:57:07 +02:00
Michal Krawczyk
e1e73e3229 net/ena: add Tx drops statistic
ENA device can report in the AENQ handler amount of Tx packets that were
dropped and not sent.

This statistic is showing global value for the device and because
rte_eth_stats is missing field that could indicate this value (it
isn't the Tx error), it is being presented as a extended statistic.

As the current design of extended statistics prevents tx_drops from
being an atomic variable and both tx_drops and rx_drops are only updated
from the AENQ handler, both were set as non-atomic for the alignment.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Guy Tzalik <gtzalik@amazon.com>
2020-04-21 13:57:07 +02:00
Michal Krawczyk
8a7a73f26c net/ena: support large LLQ headers
Default LLQ (Low-latency queue) maximum header size is 96 bytes and can
be too small for some types of packets - like IPv6 packets with multiple
extension. This can be fixed, by using large LLQ headers.

If the device supports larger LLQ headers, the user can activate them by
using device argument 'large_llq_hdr' with value '1'.

If the device isn't supporting this feature, the default value (96B)
will be used.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Guy Tzalik <gtzalik@amazon.com>
2020-04-21 13:57:07 +02:00