build error:
kernel/linux/igb_uio/igb_uio.c:
In function ‘igbuio_pci_enable_interrupts’:
kernel/linux/igb_uio/igb_uio.c:230:6:
error: this statement may fall through
[-Werror=implicit-fallthrough=]
230 | if (pci_alloc_irq_vectors(udev->pdev, 1, 1, ....
kernel/linux/igb_uio/igb_uio.c:240:2: note: here
240 | case RTE_INTR_MODE_MSI:
| ^~~~
The build error is caused by Linux kernel commit in 5.3 that enables the
"-Wimplicit-fallthrough=3" gcc flag.
Commit a035d552a93b ("Makefile: Globally enable fall-through warning")
To fix the error, either a gcc attribute can be provided [1] or a code
comment with some defined syntax need to be provided [2], since there is
already comments, updated them slightly to match the required syntax to
fix the build error.
[1]
"__attribute__ ((fallthrough));"
[2]
[ \t.!]*([Ee]lse,? |[Ii]ntentional(ly)? )?
fall(s | |-)?thr(ough|u)[ \t.!]*(-[^\n\r]*)?
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
'kni_net_rx_lo_fifo()' can get segmented buffers, using 'pkt_len' for
that case will be wrong and some values can cause buffer overflow
in destination mbuf data.
Fixes: d89a58dfe9 ("kni: support chained mbufs")
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
va2pa depends on the physical address and virtual address offset of
current mbuf. It may get the wrong physical address of next mbuf which
allocated in another hugepage segment.
In rte_mempool_populate_default(), trying to allocate whole block of
contiguous memory could be failed. Then, it would reserve memory in
several memzones that have different physical address and virtual address
offsets. The rte_mempool_populate_default() is used by
rte_pktmbuf_pool_create().
Fixes: 8451269e6d ("kni: remove continuous memory restriction")
Cc: stable@dpdk.org
Signed-off-by: Yangchao Zhou <zhouyates@gmail.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Some applications use ethtool so add the minimum ethtool ops.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
rte_kni does not follow standard style rules.
Noticed some extra \ line continuation etc.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
The correct thing to return if user gives a bad data
is to return -EFAULT. Logging is also discouraged because
it could be used as a DoS attack.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Using void * instead of proper type is unsafe practice.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Several fields were either totally unused or set and never used.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Since kernel 2.6.28 the network subsystem has provided
dev->stats for devices to use statistics handling and is the
default if no ndo_get_stats is provided.
This allow allows for 64 bit (rather than just 32 bit)
statistics with KNI.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
netdev_alloc_skb is optimized to any alignment or setup
of skb->dev that is required. The kernel has chosen to not pad
packets on x86 (for many years), because it is faster.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
The netdev subsystem already handles case where
network sevice does not support ioctl.
If device has no rx_mode hook it is not called.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Currently kernel modules are installed into /usr/src instead of
/lib/modules when meson build system is used. This patch fixes that.
Cc: stable@dpdk.org
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Internal changes in the freebsd kernel have meant that additional includes
are now necessary to build the kernel modules for DPDK. Tested with latest
bsd HEAD revision.
Bugzilla ID: 282
Cc: stable@dpdk.org
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
As there is no ethtool support in KNI anymore,
PCI related information is no longer needed.
Fixes: ea6b39b5b8 ("kni: remove ethtool support")
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
The local variables for the error message aren't needed, since the messages
aren't used more than once, and the indent levels are now such that the
lines printing the message are not much longer than the lines defining the
variables to hold the messages themselves. Therefore the use of the
variables is pointless.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Since meson 0.46, meson has supported the subdir_done() function, which
allows us to abort processing of a file early. Using this we can reduce the
indentation in our files by eliminating unnecessary else blocks.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Luca Boccassi <bluca@debian.org>
The check for meson version 0.44 is redundant since the minimum
supported version for the project as a whole is 0.47.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Current design requires kernel drivers and they need to be probed by
Linux up to some level so that they can be usable by DPDK for ethtool
support, this requires maintaining the Linux drivers in DPDK.
Also ethtool support is limited and hard, if not impossible, to expand
to other PMDs.
Since KNI ethtool support is not used commonly, if not used at all,
removing the support for the sake of simplicity and maintenance.
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
The type for MAC address should be unsigned.
Fixes: 1cfe212ed1 ("kni: support MAC address change")
Cc: stable@dpdk.org
Signed-off-by: Jie Pan <panjie5@jd.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: Rami Rosen <ramirose@gmail.com>
It allows applications running packet sockets over KNI interfaces to get
source Ethernet addresses of packets received using recvfrom function.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Build error seen with Linux kernel 5.1 and
when CONFIG_RTE_KNI_KMOD_ETHTOOL is enabled.
Build error:
kernel/linux/kni/igb_main.c:2352:18:
error: initialization of ... from incompatible pointer type ...
[-Werror=incompatible-pointer-types]
.ndo_fdb_add = igb_ndo_fdb_add,
^~~~~~~~~~~~~~~
ndo_fdb_add() is changed in Linux kernel version 5.1 and now requires
a new parameter, 'struct netlink_ext_ack *extack':
Linux Commit 87b0984ebfab ("net: Add extack argument to ndo_fdb_add()")
ndo_fdb_add() parameter updated with compile time Linux kernel version
check.
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Rami Rosen <ramirose@gmail.com>
Define variables for "is_linux", "is_freebsd" and "is_windows"
to make the code shorter for comparisons and more readable.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Added initial stub source files and required meson changes
for Windows support.
kernel/windows/meson is a stub file added to support
Windows specific source in future releases.
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Signed-off-by: Anand Rawat <anand.rawat@intel.com>
Reviewed-by: Jeff Shaw <jeffrey.b.shaw@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Harini Ramakrishnan <harini.ramakrishnan@microsoft.com>
Only one header file (rte_kni_common.h) was in the sub-directory
include/exec-env/
This file was installed in a sub-directory of the same name
in the makefile-based build.
Source and install directories are moved as below:
lib/librte_eal/linux/eal/include/exec-env/
-> lib/librte_eal/linux/eal/include/
build/include/exec-env/
-> build/include/
The consequence is to have a file hierarchy a bit more flat.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Tested-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
- mbuf_size and mtu are now being calculated according
to the given mb-pool.
- max_mtu is now being set according to the given mtu
the above two changes provide the ability to work with jumbo frames
Signed-off-by: Liron Himi <lironh@marvell.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Rename the macro and all instances in DPDK code, but keep a copy of
the old macro defined for legacy code linking against DPDK
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Rename the macro to make things shorter and more comprehensible. For
both meson and make builds, keep the old macro around for backward
compatibility.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
The term "linuxapp" is a legacy one, but just calling the subdirectory
"linux" is just clearer for all concerned.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Meson 0.47.1 fixed a bug that is difficult to work around, which causes
the linker flag of dependencies to be repeated dozens of times, which
causes issues especially when using the built-in dependency() API.
Bump the minimum version and remove obsolete version checks.
Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Build error seen with Linux kernel 5.0 and
when CONFIG_RTE_KNI_KMOD_ETHTOOL is enabled.
build error:
.../build/build/kernel/linux/kni/igb_main.c:2348:24:
error: initialization of
‘int (*)(struct net_device *, struct nlmsghdr *, u16,
struct netlink_ext_ack *)’
{aka ‘int (*)(struct net_device *, struct nlmsghdr *,
short unsigned int, struct netlink_ext_ack *)’}
from incompatible pointer type
‘int (*)(struct net_device *, struct nlmsghdr *, u16)’
{aka ‘int (*)(struct net_device *, struct nlmsghdr *,
short unsigned int)’}
[-Werror=incompatible-pointer-types]
.ndo_bridge_setlink = igb_ndo_bridge_setlink,
^~~~~~~~~~~~~~~~~~~~~~
.../build/build/kernel/linux/kni/igb_main.c:2348:24:
note: (near initialization for ‘igb_netdev_ops.ndo_bridge_setlink’)
igb_ndo_bridge_setlink() is changed in Linux kernel version 5.0
and now requires a new parameter, 'struct netlink_ext_ack *extack'.
Fixed by adding a new parameter with a kernel version check.
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Build error seen with Linux kernel 5.0 and
when CONFIG_RTE_KNI_KMOD_ETHTOOL is enabled.
build error:
.../build/build/kernel/linux/kni/ixgbe_ethtool.c:1746:4:
error: too few arguments to function ‘dev_open’
dev_open(netdev);
^~~~~~~~
In file included from .../build/kernel/linux/kni/ixgbe_ethtool.c:18:
.../linux/linux/include/linux/netdevice.h:2620:5: note: declared here
int dev_open(struct net_device *dev, struct netlink_ext_ack *extack);
^~~~~~~~
.../build/build/kernel/linux/kni/igb_ethtool.c:1812:4:
error: too few arguments to function ‘dev_open’
dev_open(netdev);
^~~~~~~~
In file included from .../build/build/kernel/linux/kni/igb_ethtool.c:15:
.../linux/linux/include/linux/netdevice.h:2620:5: note: declared here
int dev_open(struct net_device *dev, struct netlink_ext_ack *extack);
^~~~~~~~
dev_open() is changed in Linux kernel version 5.0 and now requires
a new parameter, 'struct netlink_ext_ack *extack'.
Fixed by defining dev_open as macro when kernel version >= 5.0
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
'ndo_change_mtu_rh74' was changed to 'ndo_change_mtu' in RHEL8.
Build error log:
/home/dpdk-18.11/kernel/linux/kni/compat.h:107:24: error: ‘const struct
net_device_ops’ has no member named ‘ndo_change_mtu_rh74’; did you mean
‘ndo_change_mtu’?
#define ndo_change_mtu ndo_change_mtu_rh74
^~~~~~~~~~~~~~~~~~~
Cc: stable@dpdk.org
Signed-off-by: Xiao Liang <xiliang@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
The atomic functions smp_load_acquire() and smp_store_release()
were introduced in Linux 3.14. Older kernels miss the functions:
kni_fifo.h:19:2: error:
implicit declaration of function ‘smp_load_acquire’
kni_fifo.h:30:2: error:
implicit declaration of function ‘smp_store_release’
The fallback is to drop the atomic barrier, as it was before
the commit below.
Fixes: 711859cd0d ("kni: fix kernel FIFO synchronization")
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Add module parameter 'carrier='on|off' to set the default carrier state
for linux network interfaces created by the KNI module. The default
carrier state is 'off'.
For KNI interfaces which need to reflect the carrier state of
a physical Ethernet port controlled by the DPDK application, the
default carrier state should be left set to 'off'. The application
can set the carrier state of the KNI interface to reflect the state
of the physical Ethernet port using rte_kni_update_link().
For KNI interfaces which are purely virtual, the default carrier
state can be set to 'on'. This enables the KNI interface to be
used without having to explicity set the carrier state to 'on'
using rte_kni_update_link().
Signed-off-by: Dan Gora <dg@adax.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Adding memory barrier to make sure the values being synced
before updating fifo_write in kni_fifo_put and fifo_read in
kni_fifo_get.
Fixes: 3fc5ca2f63 ("kni: initial import")
Cc: stable@dpdk.org
Signed-off-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
A Kbuild is also included to allow users to use DKMS natively without
additional code.
Signed-off-by: Luca Boccassi <bluca@debian.org>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
The build error observed with Linux kernel 4.19 when KNI ethtool
support enabled (CONFIG_RTE_KNI_KMOD_ETHTOOL=y)
.../build/build/kernel/linux/kni/kni_ethtool.c:193:3:
error: ‘struct ethtool_ops’ has no member named ‘get_settings’;
.get_settings = kni_get_settings,
^~~~~~~~~~~~
.../build/build/kernel/linux/kni/kni_ethtool.c:194:3:
error: ‘struct ethtool_ops’ has no member named ‘set_settings’;
.set_settings = kni_set_settings,
^~~~~~~~~~~~
With kernel 4.19 ethtool_ops `get_settings` & `set_settings` are
replaced with `get_link_ksettings` & `set_link_ksettings`
Commit 9b3004953503 ("ethtool: drop get_settings and set_settings callbacks")
This fix practically removes `get_settings` & `set_settings` support
for the kernel versions that have the new ethtool_ops without
implementing the new ones.
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
When a device is hot-unplugged, pci_remove will be invoked unexpectedly
before pci_release, it will caused kernel hung issue which will throw the
error info of "Trying to free already-free IRQ XXX". And on the other hand,
if pci_remove before pci_release, the interrupt will not got chance to be
disabled. So this patch aim to fix this issue by adding pci_release call
in pci_remove, it will gurranty that all pci clean up will be done before
pci removal.
Signed-off-by: Jeff Guo <jia.guo@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
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: 19685d5aa7 ("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>
Modify kni_net_ioctl() to return -EOPNOTSUPP for all ioctls instead
of 0.
This is necessary because the Wicked (and possibly other) network
interface managers will perform the SIOCGIWNAME ioctl to check if
the interface is a wireless interface. If the KNI module returns
success, Wicked will incorrectly interpret the interface as a wireless
interface.
Signed-off-by: Dan Gora <dg@adax.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Install in $kerneldir/../extra/dpdk. Usually $kerneldir should something
like: /lib/modules/$kver/build, so this directory will match the default
one used by legacy makefiles.
Fixes: a52f4574f7 ("igb_uio: build with meson")
Cc: stable@dpdk.org
Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This patch fixes compilation errors on Centos 7.5 when
CONFIG_RTE_KNI_KMOD_ETHTOOL is set to 'y'.
On RHEL75 ndo_change_mtu has changed to ndo_change_mtu_rh74.
See commit 37d477b686 ("kni: fix build on RHEL 7.5")
Signed-off-by: Drocula Lambda <quzeyao@gmail.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Caught on ubuntu-16.04 with hwe kernel for aarch64:
$ uname -a
Linux ubuntu1604arm64es 4.13.0-43-generic #48~16.04.1-Ubuntu SMP Thu May
17 13:08:01 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux
== Build kernel/linux/igb_uio
CC [M] .../kernel/linux/igb_uio/igb_uio.o
In file included from .../kernel/linux/igb_uio/igb_uio.c:20:0:
.../igb_uio/compat.h: In function ‘igbuio_kernel_is_locked_down’:
.../igb_uio/compat.h:146:7:
error: "CONFIG_EFI_SECURE_BOOT_LOCK_DOWN" is not defined [-Werror=undef]
#elif CONFIG_EFI_SECURE_BOOT_LOCK_DOWN
^
cc1: all warnings being treated as errors
Fixes: d67014c3d3 ("igb_uio: fail and log if kernel lock down is enabled")
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Write combining (WC) increases NIC performance by making better
utilization of PCI bus, but cannot be use by all PMD.
To get internal_addr memory need to be mapped. But as memory could not be
mapped twice: with and without WC it should be skipped for WC. [1]
To do not spoil other drivers that potentially could use internal_addr,
parameter wc_activate adds possibility to skip it for those PMDs,
that do not use it.
[1] https://www.kernel.org/doc/ols/2008/ols2008v2-pages-135-144.pdf
section 5.3 and 5.4
Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
When EFI secure boot is enabled, it is possible to lock down kernel and
prevent accessing device BARs and this makes igb_uio unusable.
Lock down patches are not part of the vanilla kernel but they are
applied and used by some distros already [1].
It is not possible to fix this issue, but intention of this patch is to
detect and log if kernel lock down enabled and don't insert the module
for that case.
The challenge is since this feature enabled by distros, they have
different config options and APIs for it. This patch is done based on
Fedora and Ubuntu kernel source, may needs to add more distro specific
support.
[1]
kernel.ubuntu.com/git/ubuntu/ubuntu-artful.git/commit/?id=99f9ef18d5b6
And a few more patches too.
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Error observed when CONFIG_RTE_KNI_KMOD_ETHTOOL config option is
enabled.
build error:
In function ‘strncpy’,
inlined from ‘igb_get_drvinfo’ at
kernel/linux/kni/igb_ethtool.c:814:2:
include/linux/string.h:246:9: error: ‘__builtin_strncpy’ output
may be truncated copying 31 bytes from a string of length 42
[-Werror=stringop-truncation]
return __builtin_strncpy(p, q, size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fixed by using strlcpy instead of strncpy.
adapter->fw_version size kept same because of
c369819294 ("kni: fix build with gcc 7.1")
Also next line strncpy usage replaced with strlcpy while arround.
Fixes: c369819294 ("kni: fix build with gcc 7.1")
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Fix compilation errors on Centos 7.4 when CONFIG_RTE_KNI_KMOD_ETHTOOL
is set to 'y'.
Centos 7.4 needs HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK_VLAN_FILL:
igb_main.c: In function ‘igb_ndo_bridge_getlink’:
igb_main.c:2289:2: error: too few arguments to function
‘ndo_dflt_bridge_getlink’
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, 0, 0, nlflags);
^
Centos 7.4 needs HAVE_VF_VLAN_PROTO and needs to redefine
ndo_set_vf_vlan to .extended.ndo_set_vf_vlan:
igb_main.c:2318:2: error: unknown field ‘ndo_set_vf_vlan’ specified
in initializer
.ndo_set_vf_vlan = igb_ndo_set_vf_vlan,
^
Signed-off-by: Dan Gora <dg@adax.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
rx_q fifo can only be released by kernel thread. There may be
mbuf leaks in rx_q because kernel threads are randomly stopped.
When the kni is released and netdev is unregisterd, convert the
physical address mbufs in rx_q to the virtual address in free_q.
By the way, alloc_q can be processed together to speed up the
release rate in userspace.
In my test, it is improved from 300-500ms with a mempool that has
131072 mbufs to 10ms(regardless of the specifications).
Suggested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Yangchao Zhou <zhouyates@gmail.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
