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VLAN and 802.11 devices use a network device operations structure that
wraps an underlying structure. For example, the vlan_operations
structure wraps the network device operations structure of the
underlying trunk device. This can cause false positives from the
current implementation of netdev_irq_supported(), which will always
report that VLAN devices support interrupts since it has no visibility
into the support provided by the underlying trunk device.
Fix by allowing network devices to explicitly flag that interrupts are
not supported, despite the presence of an irq() method.
Originally-fixed-by: Wissam Shoukair <wissams@mellanox.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Relicense files with kind permission from
Stefan Hajnoczi <stefanha@redhat.com>
alongside the contributors who have already granted such relicensing
permission.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Most network upper-layer drivers do not implement all three methods
(probe, notify, and remove). Save code by making all methods
optional.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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The iBFT has a VLAN field that should be filled in. Add the
vlan_tag() function to extract the VLAN tag of a network device.
Since VLAN support is optional, define a weak function that returns 0
when iPXE is built without VLAN support.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Modified-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Suggested-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Allow the link layer to directly report whether or not a packet is
multicast or broadcast at the time of calling pull(), rather than
relying on heuristics to determine this at a later stage.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Some network cards automatically strip the VLAN header, providing the
VLAN tag via a side channel such as a completion queue entry. These
cards need to be able to report receive completions directly against
the relevant VLAN device.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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VLAN device names have the form "netX.Y", e.g. "net0.5" for VLAN 5 on
net0. This use of "." conflicts with the use of "." as the
hierarchical separator in settings block names, with the result that
VLAN device settings cannot be accessed by name.
It would be trivial to treat the VLAN device settings as being a child
of the trunk device settings, but this would cause the VLAN device
settings to be applied to the trunk device: for example, setting
"net0.5/ip" would then apply the IP address to both net0.5 and net0.
Fix by changing the VLAN device name to use "-" instead of ".": the
VLAN device "net0.5" is now "net0-5".
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Originally-implemented-by: michael-dev@fami-braun.de
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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