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Reset the device when an internal error is detected.
Also, detect errors by polling the error buffer rather than using
interrupts. This is more robust and doesn't depend on MSI-X. Remove
the old interrupt handler entirely, since we don't want to support two
mechanisms for detecting internal errors.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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mlx4.h uses struct mutex, so although <linux/mutex.h> seems to be pulled in
indirectly by one of the headers it includes, the right thing to do is
to include <linux/mutex.h> directly.
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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struct mlx4_priv.doorbell_lock is never used, so delete it.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Add an InfiniBand driver for Mellanox ConnectX adapters. Because
these adapters can also be used as ethernet NICs and Fibre Channel
HBAs, the driver is split into two modules:
mlx4_core: Handles low-level things like device initialization and
processing firmware commands. Also controls resource allocation
so that the InfiniBand, ethernet and FC functions can share a
device without stepping on each other.
mlx4_ib: Handles InfiniBand-specific things; plugs into the
InfiniBand midlayer.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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