net/ice/base: add timestamp masks

Adding macros for shift and masking of the lower timestamp work in the
Rx flex descriptor. The LSB of the timestamp-low word indicates the
validity of the timestamp while the rest 7 bits contain the timestamp.

Signed-off-by: Vignesh Sridhar <vignesh.sridhar@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Junfeng Guo <junfeng.guo@intel.com>

diff --git a/drivers/net/ice/base/ice_lan_tx_rx.h b/drivers/net/ice/base/ice_lan_tx_rx.h
index 696c6a3..4255e99 100644 (file)
--- a/drivers/net/ice/base/ice_lan_tx_rx.h
+++ b/drivers/net/ice/base/ice_lan_tx_rx.h
@@ -879,6 +879,14 @@ enum ice_rx_flex_desc_exstat_bits {
        ICE_RX_FLEX_DESC_EXSTAT_OVERSIZE_S = 3,
 };
 
+/* For ice_32b_rx_flex_desc.ts_low:
+ * [0]: Timestamp-low validity bit
+ * [1:7]: Timestamp-low value
+ */
+#define ICE_RX_FLEX_DESC_TS_L_VALID_S  0x01
+#define ICE_RX_FLEX_DESC_TS_L_VALID_M  ICE_RX_FLEX_DESC_TS_L_VALID_S
+#define ICE_RX_FLEX_DESC_TS_L_M                0xFE
+
 #define ICE_RXQ_CTX_SIZE_DWORDS                8
 #define ICE_RXQ_CTX_SZ                 (ICE_RXQ_CTX_SIZE_DWORDS * sizeof(u32))
 #define ICE_TX_CMPLTNQ_CTX_SIZE_DWORDS 22