diff options
Diffstat (limited to 'drivers/net/enic/vnic_devcmd.h')
| -rw-r--r-- | drivers/net/enic/vnic_devcmd.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h index c5569bfb47ac..8025e8808d61 100644 --- a/drivers/net/enic/vnic_devcmd.h +++ b/drivers/net/enic/vnic_devcmd.h @@ -318,6 +318,25 @@ enum vnic_devcmd_cmd { * ERR_EINPROGRESS - command in a0 is still in progress */ CMD_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 49), + + /* + * Returns interrupt coalescing timer conversion factors. + * After calling this devcmd, ENIC driver can convert + * interrupt coalescing timer in usec into CPU cycles as follows: + * + * intr_timer_cycles = intr_timer_usec * multiplier / divisor + * + * Interrupt coalescing timer in usecs can be obtained from + * CPU cycles as follows: + * + * intr_timer_usec = intr_timer_cycles * divisor / multiplier + * + * in: none + * out: (u32)a0 = multiplier + * (u32)a1 = divisor + * (u32)a2 = maximum timer value in usec + */ + CMD_INTR_COAL_CONVERT = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 50), }; /* CMD_ENABLE2 flags */ |