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/vnic_enet.h | |
| parent | 3fa2a1df909482cc234524906e4bd30dee3514df (diff) | |
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/vnic_enet.h')
| -rw-r--r-- | drivers/net/enic/vnic_enet.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/net/enic/vnic_enet.h b/drivers/net/enic/vnic_enet.h index 061ad878079..609542848e0 100644 --- a/drivers/net/enic/vnic_enet.h +++ b/drivers/net/enic/vnic_enet.h @@ -20,10 +20,6 @@ #ifndef _VNIC_ENIC_H_ #define _VNIC_ENIC_H_ -/* Hardware intr coalesce timer is in units of 1.5us */ -#define INTR_COALESCE_USEC_TO_HW(usec) ((usec) * 2/3) -#define INTR_COALESCE_HW_TO_USEC(usec) ((usec) * 3/2) - /* Device-specific region: enet configuration */ struct vnic_enet_config { u32 flags; |