This adds description of MSG_ZEROCOPY flag support for AF_VSOCK type of
socket.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For AF_VSOCK, zerocopy tx mode depends on transport, so this option must
be set in AF_VSOCK implementation where transport is accessible (if
transport is not set during setting SO_ZEROCOPY: for example socket is
not connected, then SO_ZEROCOPY will be enabled, but once transport will
be assigned, support of this type of transmission will be checked).
To handle SO_ZEROCOPY, AF_VSOCK implementation uses SOCK_CUSTOM_SOCKOPT
bit, thus handling SOL_SOCKET option operations, but all of them except
SO_ZEROCOPY will be forwarded to the generic handler by calling
'sock_setsockopt()'.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add 'msgzerocopy_allow()' callback for loopback transport.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add 'msgzerocopy_allow()' callback for virtio transport.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add 'msgzerocopy_allow()' callback for vhost transport.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This bit is used by io_uring in case of zerocopy tx mode. io_uring code
checks, that socket has this feature. This patch sets it in two places:
1) For socket in 'connect()' call.
2) For new socket which is returned by 'accept()' call.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This feature totally depends on transport, so if transport doesn't
support it, return error.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds handling of MSG_ERRQUEUE input flag in receive call. This flag
is used to read socket's error queue instead of data queue. Possible
scenario of error queue usage is receiving completions for transmission
with MSG_ZEROCOPY flag. This patch also adds new defines: 'SOL_VSOCK'
and 'VSOCK_RECVERR'.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If socket's error queue is not empty, EPOLLERR must be set. Otherwise,
reader of error queue won't detect data in it using EPOLLERR bit.
Currently for AF_VSOCK this is actual only with MSG_ZEROCOPY, as this
feature is the only user of an error queue of the socket.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit 1dab47139e ("appletalk: remove ipddp driver") removes the
config IPDDP, there is some minor code clean-up possible in the appletalk
network layer.
Remove some code in appletalk layer after the ipddp driver is gone.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231012063443.22368-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
This patch eliminates three uses of strncpy():
Firstly, `dest` is expected to be NUL-terminated which is evident by the
manual setting of a NUL-byte at size - 1. For this use specifically,
strscpy() is a viable replacement due to the fact that it guarantees
NUL-termination on the destination buffer.
The next two cases should simply be memcpy() as the size of the src
string is always 3 and the destination string just wants the first 3
bytes changed.
To be clear, there are no buffer overread bugs in the current code as
the sizes and offsets are carefully managed such that buffers are
NUL-terminated. However, with these changes, the code is now more robust
and less ambiguous (and hopefully easier to read).
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20231012-strncpy-drivers-net-ethernet-qlogic-qed-qed_debug-c-v2-1-16d2c0162b80@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In very rare cases (I've seen two reports so far about different
RTL8125 chip versions) it seems the MAC locks up when link goes down
and requires a software reset to get revived.
Realtek doesn't publish hw errata information, therefore the root cause
is unknown. Realtek vendor drivers do a full hw re-initialization on
each link-up event, the slimmed-down variant here was reported to fix
the issue for the reporting user.
It's not fully clear which parts of the NIC are reset as part of the
software reset, therefore I can't rule out side effects.
Fixes: f1bce4ad2f ("r8169: add support for RTL8125")
Reported-by: Martin Kjær Jørgensen <me@lagy.org>
Link: https://lore.kernel.org/netdev/97ec2232-3257-316c-c3e7-a08192ce16a6@gmail.com/T/
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/9edde757-9c3b-4730-be3b-0ef3a374ff71@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Breno Leitao says:
====================
net: netconsole: configfs entries for boot target
There is a limitation in netconsole, where it is impossible to
disable or modify the target created from the command line parameter.
(netconsole=...).
"netconsole" cmdline parameter sets the remote IP, and if the remote IP
changes, the machine needs to be rebooted (with the new remote IP set in
the command line parameter).
This allows the user to modify a target without the need to restart the
machine.
This functionality sits on top of the dynamic target reconfiguration that is
already implemented in netconsole.
The way to modify a boot time target is creating special named configfs
directories, that will be associated with the targets coming from
`netconsole=...`.
Example:
Let's suppose you have two netconsole targets defined at boot time::
netconsole=4444@10.0.0.1/eth1,9353@10.0.0.2/12:34:56:78:9a:bc;4444@10.0.0.1/eth1,9353@10.0.0.3/12:34:56:78:9a:bc
You can modify these targets in runtime by creating the following targets::
$ mkdir cmdline1
$ cat cmdline1/remote_ip
10.0.0.3
$ echo 0 > cmdline1/enabled
$ echo 10.0.0.4 > cmdline1/remote_ip
$ echo 1 > cmdline1/enabled
====================
Link: https://lore.kernel.org/r/20231012111401.333798-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
With the previous patches, there is no more limitation at modifying the
targets created at boot time (or module load time).
Document the way on how to create the configfs directories to be able to
modify these netconsole targets.
The design discussion about this topic could be found at:
https://lore.kernel.org/all/ZRWRal5bW93px4km@gmail.com/
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20231012111401.333798-5-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Enable the attachment of a dynamic target to the target created during
boot time. The boot-time targets are named as "cmdline\d", where "\d" is
a number starting at 0.
If the user creates a dynamic target named "cmdline0", it will attach to
the first target created at boot time (as defined in the
`netconsole=...` command line argument). `cmdline1` will attach to the
second target and so forth.
If there is no netconsole target created at boot time, then, the target
name could be reused.
Relevant design discussion:
https://lore.kernel.org/all/ZRWRal5bW93px4km@gmail.com/
Suggested-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20231012111401.333798-4-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For netconsole targets allocated during the boot time (passing
netconsole=... argument), netconsole_target->item is not initialized.
That is not a problem because it is not used inside configfs.
An upcoming patch will be using it, thus, initialize the targets with
the name 'cmdline' plus a counter starting from 0. This name will match
entries in the configfs later.
Suggested-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20231012111401.333798-3-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move alloc_param_target() and its counterpart (free_param_target())
to the bottom of the file. These functions are called mostly at
initialization/cleanup of the module, and they should be just above the
callers, at the bottom of the file.
From a practical perspective, having alloc_param_target() at the bottom
of the file will avoid forward declaration later (in the following
patch).
Nothing changed other than the functions location.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20231012111401.333798-2-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
`desc` is expected to be NUL-terminated as evident by the manual
NUL-byte assignment. Moreover, NUL-padding does not seem to be
necessary.
The only caller of efx_mcdi_nvram_metadata() is
efx_devlink_info_nvram_partition() which provides a NULL for `desc`:
| rc = efx_mcdi_nvram_metadata(efx, partition_type, NULL, version, NULL, 0);
Due to this, I am not sure this code is even reached but we should still
favor something other than strncpy.
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20231012-strncpy-drivers-net-ethernet-sfc-mcdi-c-v1-1-478c8de1039d@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect res->name to be NUL-terminated based on its usage with format
strings:
| dev_err(cpp->dev.parent, "Dangling area: %d:%d:%d:0x%0llx-0x%0llx%s%s\n",
| NFP_CPP_ID_TARGET_of(res->cpp_id),
| NFP_CPP_ID_ACTION_of(res->cpp_id),
| NFP_CPP_ID_TOKEN_of(res->cpp_id),
| res->start, res->end,
| res->name ? " " : "",
| res->name ? res->name : "");
... and with strcmp()
| if (!strcmp(res->name, NFP_RESOURCE_TBL_NAME)) {
Moreover, NUL-padding is not required as `res` is already
zero-allocated:
| res = kzalloc(sizeof(*res), GFP_KERNEL);
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also opt to use the more idiomatic strscpy() usage of (dest, src,
sizeof(dest)) rather than (dest, src, SOME_LEN).
Typically the pattern of 1) allocate memory for string, 2) copy string
into freshly-allocated memory is a candidate for kmemdup_nul() but in
this case we are allocating the entirety of the `res` struct and that
should stay as is. As mentioned above, simple 1:1 replacement of strncpy
-> strscpy :)
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Louis Peens <louis.peens@corigine.com>
Link: https://lore.kernel.org/r/20231011-strncpy-drivers-net-ethernet-netronome-nfp-nfpcore-nfp_resource-c-v1-1-7d1c984f0eba@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The driver allocates skbs during initialization and during Rx
processing. Take advantage of the fact that the former happens in
process context and allocate the skbs using GFP_KERNEL to decrease the
probability of allocation failure.
Tested with CONFIG_DEBUG_ATOMIC_SLEEP=y.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/dfa6ed0926e045fe7c14f0894cc0c37fee81bf9d.1697034729.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently for VFs, mailbox returns ENODEV error when hardware timestamping
enable is requested. This patch fixes this issue. Modified this patch to
return EPERM error for the PF/VFs which are not attached to CGX/RPM.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Sai Krishna <saikrishnag@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231011121551.1205211-1-saikrishnag@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reproduce environment:
network with 3 VM linuxs is connected as below:
VM1<---->VM2(latest kernel 6.5.0-rc7)<---->VM3
VM1: eth0 ip: 192.168.122.207 MTU 1800
VM2: eth0 ip: 192.168.122.208, eth1 ip: 192.168.123.224 MTU 1500
VM3: eth0 ip: 192.168.123.240 MTU 1800
Reproduce:
VM1 send 1600 bytes UDP data to VM3 using tools scapy with flags='DF'.
scapy command:
send(IP(dst="192.168.123.240",flags='DF')/UDP()/str('0'*1600),count=1,
inter=1.000000)
Result:
Before IP data is sent.
----------------------------------------------------------------------
root@qemux86-64:~# cat /proc/net/snmp
Ip: Forwarding DefaultTTL InReceives InHdrErrors InAddrErrors
ForwDatagrams InUnknownProtos InDiscards InDelivers OutRequests
OutDiscards OutNoRoutes ReasmTimeout ReasmReqdss
Ip: 1 64 6 0 2 2 0 0 2 4 0 0 0 0 0 0 0 0 0
......
root@qemux86-64:~#
----------------------------------------------------------------------
After IP data is sent.
----------------------------------------------------------------------
root@qemux86-64:~# cat /proc/net/snmp
Ip: Forwarding DefaultTTL InReceives InHdrErrors InAddrErrors
ForwDatagrams InUnknownProtos InDiscards InDelivers OutRequests
OutDiscards OutNoRoutes ReasmTimeout ReasmReqdss
Ip: 1 64 7 0 2 2 0 0 2 5 0 0 0 0 0 0 0 1 0
......
root@qemux86-64:~#
----------------------------------------------------------------------
ForwDatagrams is always keeping 2 without increment.
Issue description and patch:
ip_exceeds_mtu() in ip_forward() drops this IP datagram because skb len
(1600 sending by scapy) is over MTU(1500 in VM2) if "DF" is set.
According to RFC 4293 "3.2.3. IP Statistics Tables",
+-------+------>------+----->-----+----->-----+
| InForwDatagrams (6) | OutForwDatagrams (6) |
| V +->-+ OutFragReqds
| InNoRoutes | | (packets)
/ (local packet (3) | |
| IF is that of the address | +--> OutFragFails
| and may not be the receiving IF) | | (packets)
the IPSTATS_MIB_OUTFORWDATAGRAMS should be counted before fragment
check.
The existing implementation, instead, would incease the counter after
fragment check: ip_exceeds_mtu() in ipv4 and ip6_pkt_too_big() in ipv6.
So do patch to move IPSTATS_MIB_OUTFORWDATAGRAMS counter to ip_forward()
for ipv4 and ip6_forward() for ipv6.
Test result with patch:
Before IP data is sent.
----------------------------------------------------------------------
root@qemux86-64:~# cat /proc/net/snmp
Ip: Forwarding DefaultTTL InReceives InHdrErrors InAddrErrors
ForwDatagrams InUnknownProtos InDiscards InDelivers OutRequests
OutDiscards OutNoRoutes ReasmTimeout ReasmReqdss
Ip: 1 64 6 0 2 2 0 0 2 4 0 0 0 0 0 0 0 0 0
......
root@qemux86-64:~#
----------------------------------------------------------------------
After IP data is sent.
----------------------------------------------------------------------
root@qemux86-64:~# cat /proc/net/snmp
Ip: Forwarding DefaultTTL InReceives InHdrErrors InAddrErrors
ForwDatagrams InUnknownProtos InDiscards InDelivers OutRequests
OutDiscards OutNoRoutes ReasmTimeout ReasmReqdss
Ip: 1 64 7 0 2 3 0 0 2 5 0 0 0 0 0 0 0 1 0
......
root@qemux86-64:~#
----------------------------------------------------------------------
ForwDatagrams is updated from 2 to 3.
Reviewed-by: Filip Pudak <filip.pudak@windriver.com>
Signed-off-by: Heng Guo <heng.guo@windriver.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231011015137.27262-1-heng.guo@windriver.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Leon Romanovsky says:
====================
This PR is collected from
https://lore.kernel.org/all/cover.1695296682.git.leon@kernel.org
This series from Patrisious extends mlx5 to support IPsec packet offload
in multiport devices (MPV, see [1] for more details).
These devices have single flow steering logic and two netdev interfaces,
which require extra logic to manage IPsec configurations as they performed
on netdevs.
[1] https://lore.kernel.org/linux-rdma/20180104152544.28919-1-leon@kernel.org/
* 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Handle IPsec steering upon master unbind/bind
net/mlx5: Configure IPsec steering for ingress RoCEv2 MPV traffic
net/mlx5: Configure IPsec steering for egress RoCEv2 MPV traffic
net/mlx5: Add create alias flow table function to ipsec roce
net/mlx5: Implement alias object allow and create functions
net/mlx5: Add alias flow table bits
net/mlx5: Store devcom pointer inside IPsec RoCE
net/mlx5: Register mlx5e priv to devcom in MPV mode
RDMA/mlx5: Send events from IB driver about device affiliation state
net/mlx5: Introduce ifc bits for migration in a chunk mode
====================
Link: https://lore.kernel.org/r/20231002083832.19746-1-leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Sabrina Dubroca says:
====================
net: tls: various code cleanups and improvements
This series contains multiple cleanups and simplifications for the
config code of both TLS_SW and TLS_HW.
It also modifies the chcr_ktls driver to use driver_state like all
other drivers, so that we can then make driver_state fixed size
instead of a flex array always allocated to that same fixed size. As
reported by Gustavo A. R. Silva, the way chcr_ktls misuses
driver_state irritates GCC [1].
Patches 1 and 2 are follow-ups to my previous cipher_desc series.
[1] https://lore.kernel.org/netdev/ZRvzdlvlbX4+eIln@work/
====================
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
driver_state is a flex array, but is always allocated by the tls core
to a fixed size (TLS_DRIVER_STATE_SIZE_{TX,RX}). Simplify the code by
making that size explicit so that sizeof(struct
tls_offload_context_{tx,rx}) works.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
chcr_ktls uses the space reserved in driver_state by
tls_set_device_offload, but makes up into own wrapper around
tls_offload_context_tx instead of accessing driver_state via the
__tls_driver_ctx helper.
In this driver, driver_state is only used to store a pointer to a
larger context struct allocated by the driver.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's not really needed since we end up refetching it as tls_ctx. We
can also remove the NULL check, since we have already dereferenced ctx
in do_tls_setsockopt_conf.
While at it, fix up the reverse xmas tree ordering.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's not really needed since we end up refetching it as tls_ctx. We
can also remove the NULL check, since we have already dereferenced ctx
in do_tls_setsockopt_conf.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Most values are shared. Nonce size turns out to be equal to IV size
for all offloadable ciphers.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simplify tls_set_sw_offload, and allow reuse for the tls_device code.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
TLS_MAX_IV_SIZE + TLS_MAX_SALT_SIZE is 20B, we don't get much benefit
in cipher_context's size and can simplify the init code a bit.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's defined in include/net/tls.h, avoid using an overly generic name.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
TLS_MAX_REC_SEQ_SIZE is 8B, we don't get anything by using kmalloc.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should never reach tls_device_reencrypt, tls_enc_record, or
tls_enc_skb with a cipher_type that can't be offloaded. Replace those
checks with a DEBUG_NET_WARN_ON_ONCE, and use cipher_desc instead of
hard-coding offloadable cipher types.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
I skipped this conversion in my previous series.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is just a trivial fix for a typo in a comment, no functional
changes.
Signed-off-by: Johannes Zink <j.zink@pengutronix.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The file name used in flash test was "dummy" because at the time test
was written, drivers were responsible for file request and as netdevsim
didn't do that, name was unused. However, the file load request is
now done in devlink code and therefore the file has to exist.
Use first random file from /lib/firmware for this purpose.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add software timestamp capabilities to the xen-netback driver
by advertising it on the struct ethtool_ops and calling
skb_tx_timestamp before passing the buffer to the queue.
Signed-off-by: Luca Fancellu <luca.fancellu@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
