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-rw-r--r--src/drivers/net/realtek.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/drivers/net/realtek.h b/src/drivers/net/realtek.h
index 24ec09e71..2591e7255 100644
--- a/src/drivers/net/realtek.h
+++ b/src/drivers/net/realtek.h
@@ -132,6 +132,12 @@ enum realtek_legacy_status {
/** Interrupt Status Register (word) */
#define RTL_ISR 0x3e
+/** Transmit (Tx) Configuration Register (dword) */
+#define RTL_TCR 0x40
+#define RTL_TCR_MXDMA(x) ( (x) << 8 ) /**< Max DMA burst size */
+#define RTL_TCR_MXDMA_MASK RTL_TCR_MXDMA ( 0x7 )
+#define RTL_TCR_MXDMA_DEFAULT RTL_TCR_MXDMA ( 0x7 /* Unlimited */ )
+
/** Receive (Rx) Configuration Register (dword) */
#define RTL_RCR 0x44
#define RTL_RCR_RXFTH(x) ( (x) << 13 ) /**< Receive FIFO threshold */