summaryrefslogtreecommitdiff
path: root/drivers/net/e1000e/e1000.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/e1000e/e1000.h')
-rw-r--r--drivers/net/e1000e/e1000.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index f9a31c82f871..cee882dd67bf 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 +452,8 @@ 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 FLAG2_DISABLE_AIM (1 << 8)
#define E1000_RX_DESC_PS(R, i) \
(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))