diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h index e065321ce8ed..1ea820e9debe 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h @@ -52,7 +52,20 @@ */ #define INTRL_ENA BIT(6) #define INTRL_REG_TO_USEC(intrl) ((intrl & ~INTRL_ENA) << 2) -#define INTRL_USEC_TO_REG(set) ((set) ? ((set) >> 2) | INTRL_ENA : 0) +/** + * i40e_intrl_usec_to_reg - convert interrupt rate limit to register + * @intrl: interrupt rate limit to convert + * + * This function converts a decimal interrupt rate limit to the appropriate + * register format expected by the firmware when setting interrupt rate limit. + */ +static inline u16 i40e_intrl_usec_to_reg(int intrl) +{ + if (intrl >> 2) + return ((intrl >> 2) | INTRL_ENA); + else + return 0; +} #define I40E_INTRL_8K 125 /* 8000 ints/sec */ #define I40E_INTRL_62K 16 /* 62500 ints/sec */ #define I40E_INTRL_83K 12 /* 83333 ints/sec */ |