| Commit message (Collapse) | Author | Age | Files | Lines |
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just two different attachments (EISA and PCI) to a single driver.
- Add real locking. Previously these drivers only acquired their lock
in their interrupt handler or in the ioctl routine (but too broadly in
the latter). No locking was used for the stack calling down into the
driver via if_init() or if_start(), for device shutdown or detach. Also,
the interrupt handler held the driver lock while calling if_input(). All
this stuff should be fixed in the locking changes.
- Really fix these drivers to handle if_alloc(). The front-end attachments
were using if_initname() before the ifnet was allocated. Fix this by
moving some of the duplicated logic from each driver into pdq_ifattach().
While here, make pdq_ifattach() return an error so that the driver just
fails to attach if if_alloc() fails rather than panic'ing. Also, defer
freeing the ifnet until the driver has stopped using it during detach.
- Add a new private timer to drive the watchdog timer.
- Pass the softc pointer to the interrupt handlers instead of the device_t
so we can avoid the use of device_get_softc() and to better match what
other drivers do.
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unnecessary.
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copy of Ethernet address.
- Change iso88025_ifattach() and fddi_ifattach() to accept MAC
address as an argument, similar to ether_ifattach(), to make
this work.
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struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.
This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.
Other changes of note:
- Struct arpcom is no longer referenced in normal interface code.
Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
To enforce this ac_enaddr has been renamed to _ac_enaddr.
- The second argument to ether_ifattach is now always the mac address
from driver private storage rather than sometimes being ac_enaddr.
Reviewed by: sobomax, sam
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and amd64. The optimization is a trivial on recent machines.
Reviewed by: -arch (imp, marcel, dfr)
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your (network) modules as well as any userland that might make sense of
sizeof(struct ifnet).
This does not change the queueing yet. These changes will follow in a
seperate commit. Same with the driver changes, which need case by case
evaluation.
__FreeBSD_version bump will follow.
Tested-by: (i386)LINT
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if_xname, if_dname, and if_dunit. if_xname is the name of the interface
and if_dname/unit are the driver name and instance.
This change paves the way for interface renaming and enhanced pseudo
device creation and configuration symantics.
Approved By: re (in principle)
Reviewed By: njl, imp
Tested On: i386, amd64, sparc64
Obtained From: NetBSD (if_xname)
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toward preventing this driver from crashing an alpha at boot.
Tested by: Oliver Lehmann <lehmann@ans-netz.de>
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Approved by: trb
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Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
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Spotted and suggested by: des
MFC after: 3 weeks
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Among other things this gets us ifmedia support.
- Update fddi_ifattach() to take an additional argument.
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