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authorSivakumar Subramani <sivakumar.subramani@neterion.com>2007-09-17 13:05:35 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:51:09 -0700
commit8116f3cf4a2a5a4fa2335e6f32023ac50506698f (patch)
tree4db08fb067fd37c892f9a98e127854acd0fa3956 /Documentation/cdrom
parent9caab4587b8320c54fc666a6c820e966e6403aea (diff)
[S2IO]: Handle and monitor all of the device errors and alarms
- Added support to poll entire set of device errors and alarams. - A note on how device errors and alarms are handled: - The adapter will automatically recover from uncorrectable ECC errors. Packets containing corrupted data will be dropped (not transmitted) or tagged as invalid before being passed to the host. - The adapter cannot recover from any internal state machine errors. A state machine error requires a device reset. - Any internal error that could potentially result in .store trampling. (undesirable PCI behaviour)is tagged as a "serious error". In such cases the adapter will give up its ability to be a bus master. In this situation the host will still be able to read internal device registers in order to generate an error report. A device reset is necessary to return to normal operation. - In the event of a pcix data parity error, the adapter will automatically disable itself. Adapter_En will automatically transition from '1' to '0' and the adapter will enter its clean-up routine. Once the device has achieved quiescence, an adapter reset should be performed. - Replaced alarm_intr_handler() with s2io_handle_errors(). - Added statistic counters to monitor the alarms. [ Fix warnings wrt. do_s2io_chk_alarm_bit(), Callers pass in an "unsigned long long *" but the function takes a "u64 *" which is different on many 64-bit platforms. -DaveM ] Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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