Commit Graph

19866 Commits

Author SHA1 Message Date
Xiaoyun Wang
8260eba689 net/hinic: add allmulticast mode and MTU set
When enable allmulticast mode, all multicast packets
can be received. This patch also adds support for MTU set,
the range of MTU is from 256 to 9600.

Signed-off-by: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
2019-10-23 16:43:08 +02:00
Xiaoyun Wang
fdba3bf15c net/hinic: add VLAN filter and offload
This patch adds support for VLAN filter and VLAN offload.

Signed-off-by: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
2019-10-23 16:43:08 +02:00
Xiaoyun Wang
6691acef0d net/hinic: support VF
This patch adds VF PMD operation interfaces to support SR-IOV.

Signed-off-by: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
2019-10-23 16:43:08 +02:00
Xiaoyun Wang
b8582d051a net/hinic/base: add HW interfaces for SR-IOV
This patch introduces some HW interfaces required for SR-IOV function,
including: init hwdev, set port state, get default cos,
VF DMA attribute table, VF txrx flush and so on.

Signed-off-by: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
2019-10-23 16:43:08 +02:00
Xiaoyun Wang
ce07a121c7 net/hinic/base: add mbox command channel for SR-IOV
Add mbox command channel for SR-IOV, which is used to
communicate between VF and VF, VF and PF. This patch
introduces data structures, initialization, interfaces
and commands of mbox channel.

Signed-off-by: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
cd30e6a723 net/bnxt: remove unnecessary variable assignment
There is no need to assign return value to a temporary variable.
Instead return error directly in case of failure.

Fixes: 1fe427fd08 ("net/bnxt: support enable/disable interrupt")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Santoshkumar Karanappa Rastapur <santosh.rastapur@broadcom.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
996355970d net/bnxt: fix coding style
- Remove unnecessary new line
- Remove unnecessary blank lines
- Align rte_* header file inclusion at one place

Fixes: 37d6161a68 ("net/bnxt: add ring group alloc/free")
Fixes: ec77c62983 ("net/bnxt: add stats context allocation")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
5bee7bef8d net/bnxt: fix handling interface change status
Driver issues hwrm_if_change when the port is started and stopped.
This command returns whether the fw has undergone a reset while port
was down. Fix to handle hwrm_if_change status during port start only.

Fixes: 0b53359123 ("net/bnxt: inform firmware about IF state changes")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Santoshkumar Karanappa Rastapur <santosh.rastapur@broadcom.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
e0d865357e net/bnxt: enable interrupts according interface status
Driver issues hwrm_if_change when the port is started. This command
returns whether the fw has undergone a reset while port was down and
driver does re-init of resources if fw has undergone a reset.
Fix to enable interrupts only after this check.

Fixes: c023cd5b21 ("net/bnxt: fix async link handling and update")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Rahul Gupta
8a82aef190 net/bnxt: change MSI-X vector to queue mapping
DPDK PCIe-VFIO framework configures base MSIX vector for interrupts
which is supported by other h/w. In case of bnxt, base MSIX vector
starts with the RX completion queue 0. To comply with the DPDK
framework We need to increase the map index by 1 so that RXTX
completion queues events can be delivered to appropriate event listeners
by kernel VFIO.

Fixes: bd0a14c99f ("net/bnxt: use dedicated CPR for async events")
Cc: stable@dpdk.org

Signed-off-by: Rahul Gupta <rahul.gupta@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Rahul Gupta
e9ccabda04 net/bnxt: reduce cleanup time during reset recovery
In stop_op(), don't wait for link down event's ASYNC response from FW.

Fixes: c023cd5b21 ("net/bnxt: fix async link handling and update")
Cc: stable@dpdk.org

Signed-off-by: Rahul Gupta <rahul.gupta@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Ajit Khaparde
458f0360e8 net/bnxt: get default HWRM command timeout from FW
The HWRM command timeout is set to a very high value.
VER_GET command response returns the default request timeout value.
Use this value for waiting for HWRM commands to complete.
Poll for the valid bit every 1us instead of 600us.

Fixes: cbcd375d37 ("net/bnxt: fix HWRM macros and locking")
Cc: stable@dpdk.org

Signed-off-by: Santoshkumar Karanappa Rastapur <santosh.rastapur@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Lance Richardson <lance.richardson@broadcom.com>
2019-10-23 16:43:08 +02:00
Ajit Khaparde
305d1fd39a net/bnxt: update trusted VF status only when it changes
We are currently logging trusted VF information everytime a VF config
change is indicated by the async message. Update it only when new
setting is different from the current setting.

Fixes: b42c15c83e ("net/bnxt: support trusted VF")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
f7b1b6b12d net/bnxt: remove redundant header file inclusion
bnxt.h header includes bnxt_cpr.h and bnxt_util.h.
There is no need to include these headers file explicitly.

This commit does not cause any functional change.

Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
acf2f2a451 net/bnxt: return error if setting link up fails
Currently bnxt driver does not return error in case setting link up fails.

Fixes: 5c206086fe ("net/bnxt: add link state operations")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
2019-10-23 16:43:08 +02:00
Santoshkumar Karanappa Rastapur
6d178ea040 net/bnxt: free default completion ring before VF config
If the VF resources need to be reconfigured using the
bnxt_hwrm_func_reserve_vf_resc, make sure that the default completion
ring is freed first before the resources are reserved.

Reallocate the ring once the VF resources are configured.

Fixes: 7bc8e9a227 ("net/bnxt: support async link notification")
Cc: stable@dpdk.org

Signed-off-by: Santoshkumar Karanappa Rastapur <santosh.rastapur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Kalesh AP
9f55e6ac75 net/bnxt: fix stats errors handling
This patch fixes few checks and few return values while getting
and clearing device statistics.

1. Fixed to return standard error code.
2. Clubbed few error checks
3. Removed an unnecessary return check

Fixes: bfb9c2260b ("net/bnxt: support xstats get/reset")
Fixes: 8892013668 ("net/bnxt: support xstats get by id")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
acd4818ea2 net/pfe: add link status update
This patch add link related operations like
link update, up and down.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
ff64beabad net/pfe: add allmulticast and promiscuous
This patch adds support to enable multicast and
promiscuous mode.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
320ae32450 net/pfe: add MTU and MAC address set
To update MAC address or MTU, operations are
added to the driver.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
659b494d3d net/pfe: add packet types and basic statistics
This patch add support for supported packet types
by the platform andbasic statistics like
numbers of packets/bytes receive and transmit.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
36220514de net/pfe: add Rx/Tx
This patch add burst enqueue and dequeue operations
to the pfe PMD.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
592041a0d3 net/pfe: add queue setup and release
This patch add RX/TX queue setup operations
and supported checksum offloads.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
fe38ad9ba7 net/pfe: add device start/stop
This patch adds device start, stop and close
operations.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
5253fe372e net/pfe: add MAC and host interface initialisation
HIF or host interface is responsible for transmit
and receive packets between physical ethernet
interfaces and HIF library defined logical interfaces.

This patch initialise that host interface and MAC.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
6dd520837f net/pfe: add HW specific macros and operations
This patch add some hardware specific macros
and functions that will be used by the driver.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
b1bc1afa4a net/pfe: support dynamic logging
This patch introduces logging for the pfe PMD.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-23 16:43:08 +02:00
Gagandeep Singh
67fc3ff97c net/pfe: introduce basic functions
pfe (packet forwarding engine) is a network
poll mode driver for NXP SoC ls1012a.

This patch introduces the framework of pfe
driver with basic functions of initialisation
and teardown.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
2019-10-23 16:43:08 +02:00
Hemant Agrawal
8c83f28cc8 common/dpaax: move OF library from DPAA bus
This code is being shared by more than 1 type of driver.
Common is most appropriate place for it.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-10-23 16:43:08 +02:00
Marcin Smoczynski
d070c34131 net/tap: fix blocked Rx packets
When OS sends more packets than are being read with a single
'rte_eth_rx_burst' call, rx packets are getting stucked in the tap pmd
and are unable to receive, because trigger_seen is getting updated
and consecutive calls are not getting any packets.

Do not update trigger_seen unless less than a max number of packets were
received allowing next call to receive the rest.

Remove unnecessary compiler barrier.

Fixes: a0d8e807d9 ("net/tap: add Rx trigger")
Cc: stable@dpdk.org

Signed-off-by: Marcin Smoczynski <marcinx.smoczynski@intel.com>
Tested-by: Mariusz Drost <mariuszx.drost@intel.com>
Tested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Reviewed-by: Keith Wiles <keith.wiles@intel.com>
2019-10-23 16:43:08 +02:00
Hyong Youb Kim
ea7768b5bb net/enic: add flow implementation based on Flow Manager API
Flow Manager API is the new firmware interface that exposes match
action capabilities in 1400 series VIC adapters. It is intended for
virtual switch offloads and enables more advanced features than the
existing filter API. For example, it supports VXLAN encap and decap
actions, and exposes TCAM and exact match tables.

Add the new flow implementation using Flow Manager and use it when
available. When Flow Manager is not available, the driver will
continue to use the old filter-based flow implementation.

Signed-off-by: John Daley <johndale@cisco.com>
Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
2019-10-23 16:43:08 +02:00
Hyong Youb Kim
c02a96fc4a net/enic: enable GENEVE with options offload
Latest firmware supports Geneve with options offload. Current overlay
offload only supports Geneve with no options. This new feature is
disabled by default, as it is intrusive and cannot be used with flow
API. Add a new devarg 'geneve-opt' so the user can explicitly enable
it.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2019-10-23 16:43:08 +02:00
Hyong Youb Kim
c655c547f9 net/enic: fix crash in secondary process
Both primary and secondary processes may call the queue start/stop,
link update handlers. These functions use the rte_eth_dev pointer
cached in the adapter private data (struct enic). But, this pointer is
valid only in the primary process, as rte_eth_dev addresses may differ
in different processes. Using that cached pointer in secondary
processes leads to a crash.

For the link update handler (enic_link_update), use the rte_eth_dev
pointer passed down from the rte layer as it is valid in the current
process. For the queue start/stop handlers (enic_start_wq and
friends), cache the rte_eth_dev_data pointer in the adapter private
data, and use that. rte_eth_dev_data is in shared memory and its
address is same across processes.

Fixes: 837e68ae94 ("net/enic: fix queue stop and start")
Fixes: cf8d9826b7 ("net/enic: extract code for checking link status")
Cc: stable@dpdk.org

Reported-by: Dirk-Holger Lenz <dirk.lenz@ng4t.com>
Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Tested-by: Dirk-Holger Lenz <dirk.lenz@ng4t.com>
Reviewed-by: John Daley <johndale@cisco.com>
2019-10-23 16:43:08 +02:00
Hyong Youb Kim
e92a4b4148 net/enic: fix probe for secondary process
Only the primary process initializes the adapter private data and
rte_eth_dev_data. For secondary processes, do not touch them.

Secondary processes need to select the right Tx and Rx handlers. Pick
the same handlers that the primary process uses.

Fixes: fefed3d1e6 ("enic: new driver")
Cc: stable@dpdk.org

Reported-by: Dirk-Holger Lenz <dirk.lenz@ng4t.com>
Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Tested-by: Dirk-Holger Lenz <dirk.lenz@ng4t.com>
Reviewed-by: John Daley <johndale@cisco.com>
2019-10-23 16:43:08 +02:00
Vamsi Attunuru
9e06e39b3c app/testpmd: show supported packet types
Patch adds a runtime function to display port supported ptypes
in different layers.

Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
2019-10-23 16:43:08 +02:00
Vivek Sharma
041dba5768 ethdev: fix QinQ offload
Use correct flag for indicating QinQ strip rx offload.

Fixes: dfebfc9882 ("ethdev: support dynamic configuration of QinQ strip")
Cc: stable@dpdk.org

Signed-off-by: Vivek Sharma <viveksharma@marvell.com>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-10-23 16:43:08 +02:00
Kiran Kumar K
66c249f4d8 net/octeontx2: enable GTPU for RSS hash index
Adding support to parse GTPU flag for RSS hash index calculation in
octeontx2.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Kiran Kumar K
3266266db4 ethdev: add GTPU flow type
Adding support to enable GTPU eth flow type for RSS hash
index calculation.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Sachin Saxena
96f7bfe828 net/dpaa2: update MC firmware version
MC firmware is the core component of FSLMC bus and net/DPAA2 devices.

Prior to this patch, MC firmware supported 10.14.x version. This
patch bumps the min supported version to 10.18.x.

Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-10-23 16:43:08 +02:00
Sachin Saxena
2895b4d87c bus/fslmc: update MC firmware version
MC firmware is the core component of FSLMC bus and DPAA2 devices.

Prior to this patch, MC firmware supported 10.14.x version. This
patch bumps the min supported version to 10.18.x.

Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-10-23 16:43:08 +02:00
Dekel Peled
790d6182c0 ethdev: add definitions for EEPROM standards
This patch add definitions of maximal data length in module EEPROM,
values are compatible with include/uapi/linux/ethtool.h.

These definitions can be used by application to validate data length.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Krzysztof Kanas
7de47c3c23 test/bonding: fix LSC timeout unit
Fixes: 76d29903f5 ("bond: support link status interrupt")
Cc: stable@dpdk.org

Signed-off-by: Krzysztof Kanas <kkanas@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Krzysztof Kanas
88524d6b8b test/bonding: fix LSC related cases
On rare situation test_link_bonding test case fail due to timespec
tv_nsec overflow, which causes pthread_cond_timedwait to return EINVAL
and test to fail.

Fixes: 76d29903f5 ("bond: support link status interrupt")
Cc: stable@dpdk.org

Signed-off-by: Krzysztof Kanas <kkanas@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Matan Azrad
971a815b9e app/testpmd: add bits per second to statistics
Traffic bps statistics is very useful for performance testing.

Add bits per second statistics for Rx and Tx.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Moti Haimovsky <motih@mellanox.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Kiran Kumar K
67f8d7b620 ethdev: add AH key field to flow API
Add new rte_flow_item_ah in order to match the Authentication Header
based on RFC 2402.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Kiran Kumar K
30f9f9f451 ethdev: add IGMP key field to flow API
Add new rte_flow_item_igmp in order to match the Internet Group
Management Protocol based on RFC 2236.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Kiran Kumar K
86e1974a42 ethdev: add NSH key field to flow API
Add new rte_flow_item_nsh in order to match the network service header
based on RFC 8300.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-23 16:43:08 +02:00
Ori Kam
e72bd9603e net/mlx5: fix allocation size of RQT attribute
The receive queues list size is based on the size of uint32_t, so
when allocating the memory, the correct value should be used. Or
else there is risk to corrupt the memory, depending on the queues
number, because there is some pad area for alignment. If the queue
number is not large enough, the issue couldn't be observed.

Fixes: dc9ceff73c ("net/mlx5: create advanced RxQ via DevX")
Cc: stable@dpdk.org

Signed-off-by: Ori Kam <orika@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
2019-10-23 16:43:08 +02:00
Xiaoyu Min
906a2efae8 net/mlx5: validate flow rule item order
The Item order validation between L2 and L3 is missing, which leading to
the following flow rule is accepted:

  testpmd> flow create 0 ingress pattern ipv4 / eth / end actions drop /
           end

Only the outer L3 layer should check whether the L2 layer is present,
because the L3 layer could directly follow the tunnel layer
without L2 layer.

Meanwhile inner L2 layer should check whether there is inner L3 layer
before it.

Fixes: 23c1d42c71 ("net/mlx5: split flow validation to dedicated function")
Cc: stable@dpdk.org

Signed-off-by: Xiaoyu Min <jackmin@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
2019-10-23 16:43:08 +02:00
David Marchand
da4880609c net/virtio: do not require IO permissions
On x86, iopl permissions are only available to root user (or users that
have the CAP_SYS_RAWIO capability).
But those permissions are only needed when the virtio devices accesses
are done with inb/outb instructions, which is when the device is bound
to a UIO kernel module.

So far, the virtio driver was refusing to register based on the check
on IO permissions.
This check does not make sense when binding the device to vfio.

Now that the check on IO permissions has been abstracted in the ioport
API, we can remove it on virtio side.

We still need to call rte_eal_iopl_init() in the virtio constructor so
that the interrupt thread inherits this permission in the case it could
be used with UIO later.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Tiwei Bie <tiwei.bie@intel.com>
2019-10-25 11:54:10 +02:00