diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb.h')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb.h b/drivers/net/ixgbe/ixgbe_dcb.h index 62dfd243bed..75f6efe1e36 100644 --- a/drivers/net/ixgbe/ixgbe_dcb.h +++ b/drivers/net/ixgbe/ixgbe_dcb.h @@ -108,7 +108,34 @@ enum dcb_rx_pba_cfg { pba_80_48 /* PBA[0-3] each use 80KB, PBA[4-7] each use 48KB */ }; +/* + * This structure contains many values encoded as fixed-point + * numbers, meaning that some of bits are dedicated to the + * magnitude and others to the fraction part. In the comments + * this is shown as f=n, where n is the number of fraction bits. + * These fraction bits are always the low-order bits. The size + * of the magnitude is not specified. + */ +struct bcn_config { + u32 rp_admin_mode[MAX_TRAFFIC_CLASS]; /* BCN enabled, per TC */ + u32 bcna_option[2]; /* BCNA Port + MAC Addr */ + u32 rp_w; /* Derivative Weight, f=3 */ + u32 rp_gi; /* Increase Gain, f=12 */ + u32 rp_gd; /* Decrease Gain, f=12 */ + u32 rp_ru; /* Rate Unit */ + u32 rp_alpha; /* Max Decrease Factor, f=12 */ + u32 rp_beta; /* Max Increase Factor, f=12 */ + u32 rp_ri; /* Initial Rate */ + u32 rp_td; /* Drift Interval Timer */ + u32 rp_rd; /* Drift Increase */ + u32 rp_tmax; /* Severe Congestion Backoff Timer Range */ + u32 rp_rmin; /* Severe Congestion Restart Rate */ + u32 rp_wrtt; /* RTT Moving Average Weight */ +}; + struct ixgbe_dcb_config { + struct bcn_config bcn; + struct tc_configuration tc_config[MAX_TRAFFIC_CLASS]; u8 bw_percentage[2][MAX_BW_GROUP]; /* One each for Tx/Rx */ |