ath10k: add TCP/UDP Checksum offload support for QCA99x0

The patch adds support to offload TCP/UDP checksum
calculations for QCA99x0.

Signed-off-by: Manikanta Pubbisetty <c_mpubbi@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index e31cd74..551f64b 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -97,10 +97,25 @@
 } __packed;
 
 struct htt_msdu_ext_desc {
-	__le32 tso_flag[4];
+	__le32 tso_flag[3];
+	__le16 ip_identification;
+	u8 flags;
+	u8 reserved;
 	struct htt_data_tx_desc_frag frags[6];
 };
 
+#define	HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE		BIT(0)
+#define	HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE	BIT(1)
+#define	HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE	BIT(2)
+#define	HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE	BIT(3)
+#define	HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE	BIT(4)
+
+#define HTT_MSDU_CHECKSUM_ENABLE (HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE \
+				 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE \
+				 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE \
+				 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE \
+				 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE)
+
 enum htt_data_tx_desc_flags0 {
 	HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT = 1 << 0,
 	HTT_DATA_TX_DESC_FLAGS0_NO_AGGR         = 1 << 1,