diff options
| author | Vasanthy Kolluri <vkolluri@cisco.com> | 2011-06-17 07:56:48 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-06-30 20:43:38 -0700 |
| commit | ea7ea65a3b37bf207d5c352ac6254506b3dc3901 (patch) | |
| tree | 5eed17f071404155e7a76f8f3415bf031a4d656a /drivers/net/enic/enic_dev.c | |
| parent | 3fa2a1df909482cc234524906e4bd30dee3514df (diff) | |
| download | linux-ea7ea65a3b37bf207d5c352ac6254506b3dc3901.tar.gz | |
enic: Add support to configure hardware interrupt coalesce timers in a platform independent way
enic driver and the underlying hardware use different units for representing the interrupt coalesce timer.
Driver converts the interrupt coalesce timer in usec to hardware cycles while setting the relevant hardware
registers. The conversion factor can be different for each of the adapter hardware types. So it is dynamically
learnt from the adapter firmware using the devcmd CMD_INTR_COAL_CONVERT. This allows the driver to configure
the hardware interrupt coalesce timers in a platform independent way.
Signed-off-by: Danny Guo <dannguo@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
Diffstat (limited to 'drivers/net/enic/enic_dev.c')
| -rw-r--r-- | drivers/net/enic/enic_dev.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/enic/enic_dev.c b/drivers/net/enic/enic_dev.c index 90687b14e60f..fd6247b3c0ee 100644 --- a/drivers/net/enic/enic_dev.c +++ b/drivers/net/enic/enic_dev.c @@ -166,6 +166,17 @@ int enic_dev_disable(struct enic *enic) return err; } +int enic_dev_intr_coal_timer_info(struct enic *enic) +{ + int err; + + spin_lock(&enic->devcmd_lock); + err = vnic_dev_intr_coal_timer_info(enic->vdev); + spin_unlock(&enic->devcmd_lock); + + return err; +} + int enic_vnic_dev_deinit(struct enic *enic) { int err; |