diff options
Diffstat (limited to 'drivers/net/e1000e/e1000.h')
| -rw-r--r-- | drivers/net/e1000e/e1000.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index f9a31c82f871..5ec0af59eeab 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -153,6 +153,33 @@ struct e1000_info; /* Time to wait before putting the device into D3 if there's no link (in ms). */ #define LINK_TIMEOUT 100 +#define DEFAULT_RDTR 0 +#define DEFAULT_RADV 8 +#define BURST_RDTR 0x20 +#define BURST_RADV 0x20 + +/* + * in the case of WTHRESH, it appears at least the 82571/2 hardware + * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when + * WTHRESH=4, and since we want 64 bytes at a time written back, set + * it to 5 + */ +#define E1000_TXDCTL_DMA_BURST_ENABLE \ + (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \ + E1000_TXDCTL_COUNT_DESC | \ + (5 << 16) | /* wthresh must be +1 more than desired */\ + (1 << 8) | /* hthresh */ \ + 0x1f) /* pthresh */ + +#define E1000_RXDCTL_DMA_BURST_ENABLE \ + (0x01000000 | /* set descriptor granularity */ \ + (4 << 16) | /* set writeback threshold */ \ + (4 << 8) | /* set prefetch threshold */ \ + 0x20) /* set hthresh */ + +#define E1000_TIDV_FPD (1 << 31) +#define E1000_RDTR_FPD (1 << 31) + enum e1000_boards { board_82571, board_82572, @@ -425,6 +452,7 @@ struct e1000_info { #define FLAG2_DISABLE_ASPM_L1 (1 << 3) #define FLAG2_HAS_PHY_STATS (1 << 4) #define FLAG2_HAS_EEE (1 << 5) +#define FLAG2_DMA_BURST (1 << 6) #define E1000_RX_DESC_PS(R, i) \ (&(((union e1000_rx_desc_packet_split *)((R).desc))[i])) |