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| author | Christian Pellegrin <chripell@fsfe.org> | 2010-02-03 07:39:54 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-03 20:32:28 -0800 |
| commit | bf66f3736a945dd4e92d86427276c6eeab0a6c1d (patch) | |
| tree | 997d7552463813e0855e77cd85e67c81bcfc6cbd /include | |
| parent | 35cfabdc5e9b99e732899db8f36c63a215e105bc (diff) | |
| download | linux-bf66f3736a945dd4e92d86427276c6eeab0a6c1d.tar.bz2 | |
can: mcp251x: Move to threaded interrupts instead of workqueues.
This patch addresses concerns about efficiency of handling incoming
packets. Handling of interrupts is done in a threaded interrupt handler
which has a smaller latency than workqueues. This change needed a rework
of the locking scheme that was much simplified. Some other (more or less
longstanding) bugs are fixed: utilization of just half of the RX
buffers, useless wait for interrupt on open, more reliable reset
sequence. The MERR interrupt is not used anymore: it overloads the CPU
in error-passive state without any additional information. One shot mode
is disabled because it's not clear if it can be handled efficiently on
this CAN controller.
Signed-off-by: Christian Pellegrin <chripell@fsfe.org>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions