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| author | Matt Carlson | 2011-11-04 10:15:03 +0100 |
|---|---|---|
| committer | David S. Miller | 2011-11-04 22:31:48 +0100 |
| commit | db21997379906fe7657d360674e1106d80b020a4 (patch) | |
| tree | aefa69f5ad536aec711d102a238d6dc10c50fa48 /drivers/net/ethernet/broadcom/tg3.h | |
| parent | tg3: Obtain PCI function number from device (diff) | |
| download | kernel-qcow2-linux-db21997379906fe7657d360674e1106d80b020a4.tar.gz kernel-qcow2-linux-db21997379906fe7657d360674e1106d80b020a4.tar.xz kernel-qcow2-linux-db21997379906fe7657d360674e1106d80b020a4.zip | |
tg3: Schedule at most one tg3_reset_task run
It is possible for multiple threads in the tg3 driver to each attempt to
schedule a run of tg3_reset_task(). The multiple tg3_reset_task
executions could all wind up on the same queue (and execute serially) or
wind up on the queues of another processor (which could execute in
parallel). Either scenario is not what was truly desired.
This patch adds a new flag, TG3_FLAG_RESET_TASK_PENDING, and uses it to
determine whether or not to schedule another run of tg3_reset_task().
With the new flag comes two new functions to facilitate scheduling and
descheduling of tg3_reset_task().
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/tg3.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/tg3.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index acfa265733ad..610fd84cc60f 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -2922,6 +2922,7 @@ enum TG3_FLAGS { TG3_FLAG_APE_HAS_NCSI, TG3_FLAG_5717_PLUS, TG3_FLAG_4K_FIFO_LIMIT, + TG3_FLAG_RESET_TASK_PENDING, /* Add new flags before this comment and TG3_FLAG_NUMBER_OF_FLAGS */ TG3_FLAG_NUMBER_OF_FLAGS, /* Last entry in enum TG3_FLAGS */ |