14985 Commits

Author SHA1 Message Date
John Daley
85b0ccec38 net/enic: fix flow API memory leak
rte_flow structures were not being freed when destroyed or flushed.

Fixes: 6ced137607d0 ("net/enic: flow API for NICs with advanced filters enabled")
Cc: stable@dpdk.org

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Signed-off-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Rasesh Mody
a9b58b15ed net/bnx2x: fix to add PHY lock
This patch adds phy_lock, acquire/release the lock when performing
PHY transactions. Without this fix driver can run into synchronization
issues with management FW when modifying PHY settings.

Fixes: 540a211084a7 ("bnx2x: driver core")
Cc: stable@dpdk.org

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2018-10-11 18:53:48 +02:00
Rasesh Mody
0f6ebeee24 net/bnx2x: fix call to link handling periodic function
If link handling periodic function is allowed to be called in interrupt
context, the periodic function can get called too frequently and exhaust
the retry credits to check link status.

This change makes sure link handling periodic function is not called in
interrupt context.

Fixes: 540a211084a7 ("bnx2x: driver core")
Cc: stable@dpdk.org

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2018-10-11 18:53:48 +02:00
Rasesh Mody
29822ca5cc net/bnx2x: fix to disable further interrupts
Fix to disable further fastpath/slowpath interrupts. These will be
enabled again by their respective handlers

Fixes: 540a211084a7 ("bnx2x: driver core")
Cc: stable@dpdk.org

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2018-10-11 18:53:48 +02:00
Rasesh Mody
d5eb8edca2 net/bnx2x: update link/PHY management
This patch has changes to update the link/PHY management (elink) code
to the latest.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2018-10-11 18:53:48 +02:00
Rasesh Mody
ba7eeb035a net/bnx2x: fix logging to include device name
Fix PMD logging scheme to include device name in the messages printed.

Fixes: 540a211084a7 ("bnx2x: driver core")
Cc: stable@dpdk.org

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2018-10-11 18:53:48 +02:00
Alejandro Lucero
f14a516898 net/nfp: fix RSS
Three problems are fixed in this patch:

 - RSS capabilities not advertised properly
 - RSS configuration just done for some RSS types
 - RSS hash match reported for just some RSS types

Fixes: 934e4c60fbff ("nfp: add RSS")
Cc: stable@dpdk.org

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
2018-10-11 18:53:48 +02:00
Stephen Hemminger
9ba102f6b0 net/netvsc: check return from kvargs process
Should check return value from processing latency value.

Coverity issue: 322104
Fixes: a25d39a3eb69 ("net/netvsc: allow tuning latency with devargs")

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-10-11 18:53:48 +02:00
Igor Romanov
4e31ee26ed net/failsafe: report actual device capabilities
Failsafe device capabilities depend on supported by the failsafe
itself plus capabilities supported by sub-devices.
Make fs_dev_infos_get() take failsafe device capabilities into account.

Fixes: cac923cfea47 ("ethdev: support runtime queue setup")
Cc: stable@dpdk.org

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
2018-10-11 18:53:48 +02:00
Hyong Youb Kim
308b514b8e net/enic: explicitly disable overlay offload
Reopening vNIC does not automatically disable overlay offload. If it
is previously enabled, it remains enabled even when the user restarts
DPDK and requests overlay offload to be disabled via devarg
disable-overlay=1. So explicitly disable overlay offload when
requested.

Fixes: 93fb21fdbe23 ("net/enic: enable overlay offload for VXLAN and GENEVE")
Cc: stable@dpdk.org

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Hyong Youb Kim
70401fd778 net/enic: add VLAN and csum offloads to simple Tx handler
Currently the simple Tx handler supports no offloads, which makes it
usable only for a small number of benchmarks. Add vlan and checksum
offloads to the handler, as cycles/packet increases only by about 3
cycles, and applications commonly use those offloads.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Hyong Youb Kim
828cf603a1 net/enic: do not use deprecated Tx VLAN packet flag
Replace PKT_TX_VLAN_PKT (deprecated) with PKT_TX_VLAN.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Hyong Youb Kim
fe5383d133 net/enic: set Rx VLAN offload flag for non-stripped packets
The NIC indicates VLAN TCI to the driver even when VLAN stripping is
disabled. The driver sets mbuf's vlan_tci but not PKT_RX_VLAN. Set
PKT_RX_VLAN to indicate that vlan_tci is valid.

Fixes: c6f455507411 ("net/enic: add ethernet VLAN packet type")
Cc: stable@dpdk.org

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Hyong Youb Kim
c0aae00d7d net/enic: enable IOVA mode
Cisco VIC models support RTE_IOVA_VA, so enable it. This change allows
the driver to work properly when --no-huge is used, in combination
with vfio and iommu.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Hyong Youb Kim
329380b3a1 net/enic: do not use non-standard integer types
Bugzilla ID: 39
Fixes: 9913fbb91df0 ("enic/base: common code")
Fixes: 322b355f2183 ("net/enic/base: bring NIC interface functions up to date")
Cc: stable@dpdk.org

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
2018-10-11 18:53:48 +02:00
Stephen Hemminger
7d146e1769 net/netvsc: support multicast/promiscuous settings on VF
Provide API's to enable allmulticast and promiscuous in Netvsc PMD
with VF. This keeps the VF and PV path in sync.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-10-11 18:53:48 +02:00
Xiaoyun Li
2e67a7fbf3 net/i40e: config flow director automatically
I40e driver needed users to config exact fdir mode to create rte_flow
rules but it shouldn't. This patch allows users to create rte_flow rules
without configuring fdir mode and let the driver config fdir automatically.
And remove the workaround in flow filtering example.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Matthew Smith
64f1c8539c net/ixgbe: wait longer for link after fiber MAC setup
After setting up the link on a fiber port, the maximum wait time for
the link to come up is 500 ms in ixgbe_setup_mac_link_multispeed_fiber().
On an x550 SFP+ port, this is often not sufficiently long for the link
to come up. This can result in never being able to retrieve accurate
link status for the port using rte_eth_link_get_nowait().

Increase the maximum wait time in ixgbe_setup_mac_link_multispeed_fiber()
to 1 s.

Bugzilla ID: 69
Fixes: f3430431abaf ("ixgbe/base: add SFP+ dual-speed support")
Cc: stable@dpdk.org

Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2018-10-11 18:53:48 +02:00
Xiaoyun Li
12aa64d1f6 net/i40e: remove unnecessary interrupt enable
Since rte_intr_enable is called at init and start time. Remove it in
interrupt_action function to avoid too many system calls.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2018-10-11 18:53:48 +02:00
Xiaoyun Li
567dc50d62 net/ixgbe: remove unnecessary interrupt enable
Since rte_intr_enable is called at init and start time. Remove it in
interrupt_action function to avoid too many system calls.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
fbce6f71eb net/i40e/base: update version
Update share code release version in readme.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
5cea601bff net/i40e/base: add new TR bits used for cloud filters
There is a new set of TR bits that can be used when replacing
the cloud filters so add them in. Also added a check to make
sure that the replace cloud filters AQ command doesn't get
executed on an X722 since it is not supported there.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Andrey Chilikin <andrey.chilikin@intel.com>
Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
a3aed72d40 net/i40e/base: add capability flag for stopping FW LLDP
Add HW capability flag to indicate that firmware supports stopping
LLDP agent. This feature has been added in FW API 1.7 for XL710
devices and 1.6 for X722. Also raise expected minor version number
for X722 FW API to 6.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
e508a5b155 net/i40e/base: wrap admin queue set/get PHY register funcs
These two functions are currently only used in the LED get/set
functions, which are not apart of the VF driver.  So the
i40e_aq_set/get_phy_register functions should be wrapped so they
can be removed from the VF driver.

This was brought up in the Linux community that these functions in
the VF driver had no callers in the tree, so they should be removed.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
988ed63c74 net/i40e/base: add support for Carlsville device
Carlsville Device use 10GBASE-T/1GBASE-T PHY with additional support
for 5GBASE-T/2.5GBASE-T.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
1360f4862f net/i40e/base: add FC threshold parameter for set MAC
This patch adds the default value for Flow Control Refresh Threshold
to set_mac_config AdminQ command. Previously, calling this AdminQ
command would overwrite the default value with 0.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
131b086c5b net/i40e/base: add AQ command for rearrange NVM structure
During switching between old NVM structure approach (called
structured NVM) to new one (called flat NVM) or backward flash
needs to be rearranged to required NVM structure.
This is a part of transition from one NVM structure to another.
The function is introduced to command firmware to start
rearrangement process.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
6ceb62fc97 net/i40e/base: add additional return code
Firmware can return a busy state, so the i40e_asq_send_command will
return I40E_ERR_NOT_READY.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:48 +02:00
Qi Zhang
50130a0c44 net/i40e/base: change AQ command for PHY access
Add new field - command flags with only one flag for now. Added flag
tells FW that it shouldn't change page while accessing QSFP module,
as it was set manually.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
92451d9039 net/i40e/base: correct global reset timeout calculation
The wait time for Global Reset Ready steady state is calculated based on
the GLGEN_RSTCTL.GRSTDEL value. However, current impelementation multiplied
that value by 20 as a workaround for an issue in SOC platforms.
This resulted in the maximum GLGEN_RSTCTL.GRSTDEL timeout of 6.5 seconds
becoming 130 seconds, which is so long that the VMkernel watchdog thinks
the kernel is frozen and triggers a PSOD.

Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
49ea51605b net/i40e/base: gracefully clean the resources
Allocated resources were not freed in the event of failure in
i40e_init_asq function. This patch gracefully handles all failures.

Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
02016804ed net/i40e/base: properly clean resources
Allocated resources were not freed in the event of a failure in
i40e_init_lan_hmc function. This patch gracefully handles the fail
case after initializing the lan hmc.

Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
b72611a274 net/i40e/base: read LLDP config area with correct endianness
The NVM is in little endian so when we read from it we need to do
the correct thing for the endianness of the machine.

Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
54f4a22dc1 net/i40e/base: improve the polling mechanism
This patch fixes the polling mechanism of GLGEN_RSTAT.DEVSTATE
in the PF Reset path when Global Reset is in progress.
While the driver is polling for the end of the PF Reset and
the Global Reset is triggered, abandon the PF Reset path and
prepare for the upcoming Global Reset.

Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
2f4f2af37d net/i40e/base: enable cloud filters via tc flower
This patch enables tc-flower based hardware offloads. tc flower
filter provided by the kernel is configured as driver specific
cloud filter. The patch implements functions and admin queue
commands needed to support cloud filters in the driver and
adds cloud filters to configure these tc-flower filters.

Also it cover below API renaming for code clean.

- i40e_aq_add_cloud_filters_big_buffer to
  i40e_aq_add_cloud_filters_bb
- i40e_aq_remove_cloud_filters_big_buffer to
  i40e_aq_rem_cloud_filters_bb
- i40e_aq_remove_cloud_filters to
  i40e_aq_rem_cloud_filters

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
eac3ed949a net/i40e/base: add admin queue definitions for cloud filters
Add new admin queue definitions and extended fields for cloud
filter support. Define big buffer for extended general fields
in Add/Remove Cloud filters command.

Also rename i40e_aqc_add_remove_cloud_filters_element_data to
i40e_aq__cloud_filters_element_data.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
413c157dde net/i40e/base: enable cloud filter mode for switch config
Add definitions for L4 filters and switch modes based on cloud filters
modes and extend the set switch config command to include the additional
cloud filter mode.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
df935a8703 net/i40e/base: introduce PHY type bitmask
This patch introduces a helper macro define.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
188d0bda2b net/i40e/base: fix partition id calculation for X722
This patch overwrites number of ports for X722 devices with support for
OCP PHY mezzanine. The old method with checking if port is disabled in
the PRTGEN_CNF register cannot be used in this case. When the OCP is
removed, ports were seen as disabled, which resulted in wrong calculation
of partition id, that caused WoL to be disabled on certain ports.

Fixes: 3c89193a36fd ("i40e/base: support WOL config for X722")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
547be3f01f net/i40e/base: replace license text with SPDX tag
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
2018-10-11 18:53:47 +02:00
Qi Zhang
0a1b657838 net/i40e: fix send admin queue command before init
We should not issue Admin Queue command before Admin Queue is initialized.
But this happened in i40e_hw_init and i40e_filter_input_set_init.

The patch fixes the issue by proper reordering.

Fixes: b6a0ec418274 ("i40e: use AQ for Rx control register read/write")
Cc: stable@dpdk.org

Reported-by: Anand Rawat <anand.rawat@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2018-10-11 18:53:47 +02:00
Thomas Monjalon
911462eb4a eal: simplify parameters of hotplug functions
All information about a device to probe can be grouped
in a common string, which is what we usually call devargs.
An application should not have to parse this string before
calling the EAL probe function.
And the syntax could evolve to be more complex and support
matching multiple devices in one string.
That's why the bus name and device name should be removed from
rte_eal_hotplug_add().
Instead of changing this function, a simpler one is added
and used in the old one, which may be deprecated later.

When removing a device, we already know its rte_device handle
which can be directly passed as parameter of rte_eal_hotplug_remove().
If the rte_device is not known, it can be retrieved with the devargs,
by iterating in the device list (future RTE_DEV_FOREACH()).
Similarly to the probing case, a new function is added
and used in the old one, which may be deprecated later.
The new function is used in failsafe, because the replacement is easy.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
2018-10-11 14:09:24 +02:00
Thomas Monjalon
6878cd397d eal: remove experimental flag of hotplug functions
These functions are quite old and are the only available replacement
for the deprecated attach/detach functions.

Note: some new functions may (again) replace these hotplug functions,
in future, with better parameters.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
2018-10-11 14:09:24 +02:00
Thomas Monjalon
6844d146ff eal: add bus pointer in device structure
When a device is added with a devargs (hotplug or whitelist),
the bus pointer can be retrieved via its devargs.
But there is no such devargs.bus in case of standard scan.

A pointer to the rte_bus handle is added to rte_device.
When a device is allocated (during a scan),
the pointer to its bus is assigned.

It will make possible to remove a rte_device,
using the function pointer from its bus.

The function rte_bus_find_by_device() becomes useless,
and may be removed later.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
2018-10-11 14:09:24 +02:00
Thomas Monjalon
2effa126fb devargs: simplify parameters of removal function
The function rte_devargs_remove(), which is intended to be internal,
can take a devargs structure as argument.
The matching is still using string comparison of bus name and
device name.
It is simpler and may allow a different devargs matching in future.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
2018-10-11 14:09:24 +02:00
Thomas Monjalon
e7ec4d2fc8 devargs: remove deprecated functions
rte_eal_parse_devargs_str() does not support parsing the bus name
at the start of devargs. So it was renamed and deprecated.

rte_eal_devargs_add(), rte_eal_devargs_type_count() and
rte_eal_devargs_dump() were declared deprecated and had their
implementation body renamed.

All these functions were deprecated in release 18.05.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
2018-10-11 14:09:18 +02:00
Thomas Monjalon
3f7a40c670 devargs: rename enum items with singular form
The enum names are *_params (plural form).
And the items are also using the plural form: *_PARAMS_*.
It looks more natural to use the singular form *_PARAM_* for items.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-10-11 13:57:29 +02:00
Thomas Monjalon
4e7a69c9d9 bus/pci: rename devargs parameter id to addr
We could match devices by their PCI id (vendor id, device id, etc).
But for now, only matching by PCI address is implemented.
The devargs parameter "id" is renamed "addr" to reflect its real meaning.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-10-11 13:57:29 +02:00
Neil Horman
49bcce1383 buildtools: prevent experimental symbol match on substring
The experimental symbol check script matched on the regexes
"\.text.*$SYM" and "\.text\.experimental.*$SYM" which allows for
substring matches.
If a symbol is leading substring of another one (e.g. symbol foo
is a substring of symbol foobar), it would match on symbols
when it shouldn't.

It is fixed by matching additionally on the end of line
so that symbols are an exact match.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
2018-10-11 13:57:29 +02:00
Stephen Hemminger
ab856f2947 igb_uio: fix refcount if open returns error
This fixes the problem of reference count leak if
igbuio_pci_enable_interrupts fails.

Also, replace mutex and integer with a kernel atomic counter.
This is standard pattern for kernel devices.

Fixes: 19685d5aa79c ("igb_uio: allow multi-process access")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-10-11 13:47:19 +02:00