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lcs: Channel errors drive lcs_recovery which leads to kernel panic.

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When the lcs irq routine detects channel failures it drives device recovery.
After this event the device is no longer usable for shutdown requests,
because the lcs_irq routine may get wrong channel status information.
In such a case the lcs_irq routine marks the channel in 'error' state.
The channel state comes back to 'running' after restarting the channels.

Signed-off-by: Klaus D. Wacker <kdwacker@de.ibm.com>
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Klaus D. Wacker
2007-10-05 16:45:47 +02:00
committed by David S. Miller
parent d8fae9c2f2
commit 59579da329
2 changed files with 9 additions and 3 deletions
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drivers/s390/net/lcs.h
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@@ -138,6 +138,7 @@ enum lcs_channel_states {
LCS_CH_STATE_RUNNING,
LCS_CH_STATE_SUSPENDED,
LCS_CH_STATE_CLEARED,
LCS_CH_STATE_ERROR,
};
/**