net: remove use of ndo_set_multicast_list in drivers

replace it by ndo_set_rx_mode

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

cassini/niu/sun*: Move the Sun drivers

Moves the Sun drivers into drivers/net/ethernet/sun/ and make
the necessary Kconfig and Makefile changes.

Oliver Hartkopp <socketcan@hartkopp.net> suggested r

cassini/niu/sun*: Move the Sun drivers

Moves the Sun drivers into drivers/net/ethernet/sun/ and make
the necessary Kconfig and Makefile changes.

Oliver Hartkopp <socketcan@hartkopp.net> suggested removing the
sun* prefix on the driver names. This type of change I will
leave up to the driver maintainers.

CC: Sam Creasey <sammy@sammy.net>
CC: Adrian Sun <asun@darksunrising.com>
CC: Benjamin Herrenscmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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net: remove 'fallback' argument from dev->ndo_select_queue()

After the previous patch, all the callers of ndo_select_queue()
provide as a 'fallback' argument netdev_pick_tx.
The only

net: remove 'fallback' argument from dev->ndo_select_queue()

After the previous patch, all the callers of ndo_select_queue()
provide as a 'fallback' argument netdev_pick_tx.
The only exceptions are nested calls to ndo_select_queue(),
which pass down the 'fallback' available in the current scope
- still netdev_pick_tx.

We can drop such argument and replace fallback() invocation with
netdev_pick_tx(). This avoids an indirect call per xmit packet
in some scenarios (TCP syn, UDP unconnected, XDP generic, pktgen)
with device drivers implementing such ndo. It also clean the code
a bit.

Tested with ixgbe and CONFIG_FCOE=m

With pktgen using queue xmit:
threads vanilla patched
(kpps) (kpps)
1 2334 2428
2 4166 4278
4 7895 8100

v1 -> v2:
- rebased after helper's name change

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: sun: fix return type of ndo_start_xmit function

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in

net: sun: fix return type of ndo_start_xmit function

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.

Found by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: allow ndo_select_queue to pass netdev

This patch makes it so that instead of passing a void pointer as the
accel_priv we instead pass a net_device pointer as sb_dev. Making this

net: allow ndo_select_queue to pass netdev

This patch makes it so that instead of passing a void pointer as the
accel_priv we instead pass a net_device pointer as sb_dev. Making this
change allows us to pass the subordinate device through to the fallback
function eventually so that we can keep the actual code in the
ndo_select_queue call as focused on possible on the exception cases.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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sunvnet: does not support GSO for sctp

The NETIF_F_GSO_SOFTWARE implies support for GSO on SCTP, but the
sunvnet driver does not support GSO for sctp. Here we remove the
NETIF_F_GSO

sunvnet: does not support GSO for sctp

The NETIF_F_GSO_SOFTWARE implies support for GSO on SCTP, but the
sunvnet driver does not support GSO for sctp. Here we remove the
NETIF_F_GSO_SOFTWARE feature flag and only report NETIF_F_ALL_TSO
instead.

Signed-off-by: Cathy Zhou <Cathy.Zhou@Oracle.COM>
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sun: Add SPDX license tags to Sun network drivers

Add the appropriate SPDX license tags to the Sun network drivers
as outlined in Documentation/process/license-rules.rst.

Signed

sun: Add SPDX license tags to Sun network drivers

Add the appropriate SPDX license tags to the Sun network drivers
as outlined in Documentation/process/license-rules.rst.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: sun: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_set

net: ethernet: sun: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Shannon Nelson <shannon.nelson@oracle.com>
Cc: Rob Herring <robh@kernel.org>
Cc: chris hyser <chris.hyser@oracle.com>
Cc: Tushar Dave <tushar.n.dave@oracle.com>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: add support for IPv6 checksum offloads

The original code didn't handle non-IPv4 packets very well, so the
offload advertising had to be scaled back down to just IP. Here we

sunvnet: add support for IPv6 checksum offloads

The original code didn't handle non-IPv4 packets very well, so the
offload advertising had to be scaled back down to just IP. Here we
add the bits needed to support TCP and UDP packets over IPv6 and
turn the offload advertising back on.

Orabug: 26289579

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: restrict advertized checksum offloads to just IP

As much as we'd like to play well with others, we really aren't
handling the checksums on non-IP protocol packets very well. Th

sunvnet: restrict advertized checksum offloads to just IP

As much as we'd like to play well with others, we really aren't
handling the checksums on non-IP protocol packets very well. This
is easily seen when trying to do TCP over ipv6 - the checksums are
garbage.

Here we restrict the checksum feature flag to just IP traffic so
that we aren't given work we can't yet do.

Orabug: 26175391, 26259755

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: add stats to track ldom to ldom packets and bytes

In this driver, there is a "port" created for the connection to each of
the other ldoms; a netdev queue is mapped to each port,

sunvnet: add stats to track ldom to ldom packets and bytes

In this driver, there is a "port" created for the connection to each of
the other ldoms; a netdev queue is mapped to each port, and they are
collected under a single netdev. The generic netdev statistics show
us all the traffic in and out of our network device, but don't show
individual queue/port stats. This patch breaks out the traffic counts
for the individual ports and gives us a little view into the state of
those connections.

Orabug: 25190537

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: update version and version printing

There have been several changes since the first version of this code, so
we bump the version number. While we're at it, we can simplify the

sunvnet: update version and version printing

There have been several changes since the first version of this code, so
we bump the version number. While we're at it, we can simplify the
version printing a bit and drop a couple lines of code.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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ethernet/sun: use core min/max MTU checking

cassini: min_mtu 60, max_mtu 9000

niu: min_mtu 68, max_mtu 9216

sungem: min_mtu 68, max_mtu 1500 (comments say jumbo mode is bro

ethernet/sun: use core min/max MTU checking

cassini: min_mtu 60, max_mtu 9000

niu: min_mtu 68, max_mtu 9216

sungem: min_mtu 68, max_mtu 1500 (comments say jumbo mode is broken)

sunvnet: min_mtu 68, max_mtu 65535
- removed sunvnet_change_mut_common as it does nothing now

CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c

Checkpatch updates for sunvnet.c and sunvnet_common.c.

Signed-off-by: Aaron Young <aaron.young@oracle.com>
Signed-off-by:

ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c

Checkpatch updates for sunvnet.c and sunvnet_common.c.

Signed-off-by: Aaron Young <aaron.young@oracle.com>
Signed-off-by: Rashmi Narasimhan <rashmi.narasimhan@oracle.com>
Reviewed-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Reviewed-by: Alexandre Chartre <Alexandre.Chartre@oracle.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

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ldmvsw: Make sunvnet_common compatible with ldmvsw

Modify sunvnet common code and data structures to be compatible
with both sunvnet and ldmvsw drivers.

Details:

ldmvsw: Make sunvnet_common compatible with ldmvsw

Modify sunvnet common code and data structures to be compatible
with both sunvnet and ldmvsw drivers.

Details:

Sunvnet operates on "vnet-port" nodes which appear in the Machine
Description (MD) in a guest domain. Ldmvsw operates on "vsw-port"
nodes which appear in the MD of a service domain.

A difference between the sunvnet driver and the ldmvsw driver is
the sunvnet driver creates a network interface (i.e. a struct net_device)
for every vnet-port *parent* "network" node. Several vnet-ports may appear
under this common parent network node - each corresponding to a common parent
network interface. Conversely, since bridge/vswitch software will need
to interface with every vsw-port in a system, the ldmvsw driver creates
a network interface (i.e. a struct net_device) for every vsw-port - not
every parent node as with sunvnet. This difference required some special
handling in the common code as explained below.

There are 2 key data structures used by the sunvnet and ldmvsw drivers
(which are now found in sunvnet_common.h):

1. struct vnet_port
This structure represents a vnet-port node in sunvnet and a vsw-port
in the ldmvsw driver.

2. struct vnet
This structure represents a parent "network" node in sunvnet and a parent
"virtual-network-switch" node in ldmvsw.

Since the sunvnet driver allocates a net_device for every parent "network"
node, a net_device member appears in the struct vnet. Since the ldmvsw
driver allocates a net_device for every port, a net_device member was
added to the vnet_port. The common code distinguishes which structure
net_device member to use by checking a 'vsw' bit that was added to the
vnet_port structure. See the VNET_PORT_TO_NET_DEVICE() marco in
sunvnet_common.h.

The netdev_priv() in sunvnet is allocated as a vnet. The netdev_priv()
in ldmvsw is a vnet_port. Therefore, any place in the common code
where a netdev_priv() call was made, a wrapper function was implemented
in each driver to first get the vnet and/or vnet_port (in a driver
specific way) and pass them as newly added parameters to the common
functions (see wrapper funcs: vnet_set_rx_mode() and vnet_poll_controller()).
Since these wrapper functions call __tx_port_find(), __tx_port_find() was
moved from the common code back into sunvnet.c. Note - ldmvsw.c does not
require this function.

These changes also required that port_is_up() be made
into a common function and thus it was given a _common suffix and
exported like the other common functions.

A wrapper function was also added for vnet_start_xmit_common() to pass a
driver-specific function arg to return the port associated with a given
struct sk_buff and struct net_device. This was required because
vnet_start_xmit_common() grabs a lock prior to getting the associated
port. Using a function pointer arg allowed the code to work unchanged
without risking changes to the non-trivial locking logic in
vnet_start_xmit_common().

Signed-off-by: Aaron Young <aaron.young@oracle.com>
Signed-off-by: Rashmi Narasimhan <rashmi.narasimhan@oracle.com>
Reviewed-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Reviewed-by: Alexandre Chartre <Alexandre.Chartre@oracle.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

ldmvsw: Split sunvnet driver into common code

Split sunvnet.c into sunvnet.c and sunvnet_common.c.

Details:

Since the sunvnet and ldmvsw drivers will both use common

ldmvsw: Split sunvnet driver into common code

Split sunvnet.c into sunvnet.c and sunvnet_common.c.

Details:

Since the sunvnet and ldmvsw drivers will both use common sunvnet code,
move the functions (and support functions) anticipated to be common code
from sunvnet.c to sunvnet_common.c. Similarly, sunvnet.h was renamed to
sunvnet_common.h. The sunvnet_common.c code will be compiled into the
kernel and act as a library of functions that are linked by either
(or both) drivers when loaded.

Function names for external functions in sunvnet_common.c (to be
called by both the sunvnet and ldmvsw drivers) were tagged with a "_common"
suffix to clearly designate them as common functions.

No functional changes as of yet... just moved code verbatim to the new
sunvnet_common.c/h files.

Makefile/Kconfig support added to build sunvnet_common.c file. The code
is included in the kernel if SUN_LDOMS is defined/selected.

NOTE - per the SubmittingPatches documentation, since the code was just
moved from one file another, the code was NOT checkpatch'd in this commit
to aid in review.

Signed-off-by: Aaron Young <aaron.young@oracle.com>
Signed-off-by: Rashmi Narasimhan <rashmi.narasimhan@oracle.com>
Reviewed-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Reviewed-by: Alexandre Chartre <Alexandre.Chartre@oracle.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: perf tracepoint invocations to trace LDC state machine

Use sunvnet perf trace macros to monitor LDC message exchange state.

Signed-off-by: Sowmini Varadhan <sowmini.varadha

sunvnet: perf tracepoint invocations to trace LDC state machine

Use sunvnet perf trace macros to monitor LDC message exchange state.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: Initialize network_header and transport_header in vnet_rx_one()

vnet_fullcsum() accesses ip_hdr() and transport header to compute
the checksum for IPv4 packets, so these need to

sunvnet: Initialize network_header and transport_header in vnet_rx_one()

vnet_fullcsum() accesses ip_hdr() and transport header to compute
the checksum for IPv4 packets, so these need to be initialized in
skb created in vnet_rx_one().

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: Invoke SET_NETDEV_DEV() to set up the vdev in vnet_new()

`ls /sys/devices/channel-devices/vnet-port-0-0/net' is missing without
this change, and applications like NetworkManager

sunvnet: Invoke SET_NETDEV_DEV() to set up the vdev in vnet_new()

`ls /sys/devices/channel-devices/vnet-port-0-0/net' is missing without
this change, and applications like NetworkManager are looking in
sysfs for the information.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sungem, sunhme, sunvnet: Update drivers to use dma_wmb/rmb

This patch goes through and replaces wmb/rmb with dma_wmb/dma_rmb in cases
where the barrier is being used to order writes or r

sungem, sunhme, sunvnet: Update drivers to use dma_wmb/rmb

This patch goes through and replaces wmb/rmb with dma_wmb/dma_rmb in cases
where the barrier is being used to order writes or reads to just memory and
doesn't involve any programmed I/O.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: failed trigger should not cause BUG_ON()

An error return from __vnet_tx_trigger() sets the TX descriptor to
VIO_DESC_FREE while leaving port->tx_bufs[txi].skb set. This leads

sunvnet: failed trigger should not cause BUG_ON()

An error return from __vnet_tx_trigger() sets the TX descriptor to
VIO_DESC_FREE while leaving port->tx_bufs[txi].skb set. This leads
to a BUG_ON() the next time this descriptor is used.

This patch frees the pending skb when getting a trigger error to
match the VIO_DESC_FREE state.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: don't change gso data on clones

This patch unclones an skb for the case where the sunvnet driver needs to
change the segmentation size so that it doesn't interfere with TCP SACK

sunvnet: don't change gso data on clones

This patch unclones an skb for the case where the sunvnet driver needs to
change the segmentation size so that it doesn't interfere with TCP SACK's
use of them.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts:
drivers/net/vxlan.c
drivers/vhost/net.c
include/linux/if_vlan.h
net/c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts:
drivers/net/vxlan.c
drivers/vhost/net.c
include/linux/if_vlan.h
net/core/dev.c

The net/core/dev.c conflict was the overlap of one commit marking an
existing function static whilst another was adding a new function.

In the include/linux/if_vlan.h case, the type used for a local
variable was changed in 'net', whereas the function got rewritten
to fix a stacked vlan bug in 'net-next'.

In drivers/vhost/net.c, Al Viro's iov_iter conversions in 'net-next'
overlapped with an endainness fix for VHOST 1.0 in 'net'.

In drivers/net/vxlan.c, vxlan_find_vni() added a 'flags' parameter
in 'net-next' whereas in 'net' there was a bug fix to pass in the
correct network namespace pointer in calls to this function.

Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: set queue mapping when doing packet copies

This patch fixes a bug where vnet_skb_shape() didn't set the already-selected
queue mapping when a packet copy was required. This resu

sunvnet: set queue mapping when doing packet copies

This patch fixes a bug where vnet_skb_shape() didn't set the already-selected
queue mapping when a packet copy was required. This results in using the
wrong queue index for stops/starts, hung tx queues and watchdog timeouts
under heavy load.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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sunvnet: improve error handling when a remote crashes

If a remote machine crashes while there are pending transmit buffers, the
sunvnet driver reallocates the ring descriptors giving us

sunvnet: improve error handling when a remote crashes

If a remote machine crashes while there are pending transmit buffers, the
sunvnet driver reallocates the ring descriptors giving us enries that have
state VIO_DESC_FREE but also an allocated skb. This results in a BUG_ON()
call when the remote reboots and we reach that point in the ring.

This patch:

1) clears pending tx packets in the ring on port reset
2) changes a BUG_ON() to a pr_warn() when a remote host has given us an invalid
descriptor state
3) collapses multiple active buffer frees in a ring to a single message per
ring and adds the device name and remote MAC address

This fixes the particular problem of not cleaning up pending buffers on a
reset, but also prevents us from crashing if the remote handles descriptors
out of order or sets an unexpected state for a descriptor.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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