diff options
| author | Michael Reiss <michael.f.reiss@freescale.com> | 2007-04-13 01:26:11 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-04-28 11:01:04 -0400 |
| commit | 702ff12ce7e9643084232a8d50b0b1eec26026ae (patch) | |
| tree | d00d43218efdc3f6e5356c638438f2f0a2bc3774 /include/asm-m68k/machdep.h | |
| parent | 728de4c927a3544b6d3da331b634035d4c75ca17 (diff) | |
ucc_geth: NAPI-related bug fixes
Based partly on the gianfar driver, this patch fixes several
bugs which were causing NAPI to be completely unusable.
* An IRQ is still needed in NAPI, to kick off NAPI task,
and for Tx processing. Request the IRQ.
* If rx_work_limit = 0 we are not complete.
* While running Rx NAPI processing we must mask Rx events,
including Rx busy.
* ucc_geth_rx function does not need a lock.
Could lead to deadlock in NAPI case.
* There's no need to loop reading ucce multiple times in the ISR,
so while adding the call to schedule NAPI which was not there,
simplify the event processing into if-else format.
* Rx Busy now kicks off NAPI processing, while still
being counted as an error.
Signed-off-by: Michael Reiss <michael.f.reiss@freescale.com>
Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/asm-m68k/machdep.h')
0 files changed, 0 insertions, 0 deletions