[IB] mthca: first pass at catastrophic error reporting

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Add some initial support for detecting and reporting catastrophic
errors reported by Mellanox HCAs.  We start a periodic timer which
polls the catastrophic error reporting buffer in device memory.  If an
error is detected, we dump the contents of the buffer for port-mortem
debugging, and report a fatal asynchronous error to higher levels.

In the future we can try to recover from these errors by resetting the
device, but this will require some work in higher-level code as well.
Let's get this in now, so that we at least get catastrophic errors
reported in logs.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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This commit is contained in:

Roland Dreier 2005-10-27 11:03:38 -07:00

parent 7cc656efb5

commit 3d155f8cd0

5 changed files with 176 additions and 1 deletions

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3

drivers/infiniband/hw/mthca/Makefile

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153

drivers/infiniband/hw/mthca/mthca_catas.c

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5

drivers/infiniband/hw/mthca/mthca_cmd.c

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13

drivers/infiniband/hw/mthca/mthca_dev.h

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3

drivers/infiniband/hw/mthca/mthca_provider.c

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