Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b9635195 authored by Manikanta Pubbisetty's avatar Manikanta Pubbisetty Committed by Kalle Valo
Browse files

ath10k: add TCP/UDP Checksum offload support for QCA99x0 



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

Signed-off-by: default avatarManikanta Pubbisetty <c_mpubbi@qti.qualcomm.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 19be9e9a

drivers/net/wireless/ath/ath10k/htt.h

+16 −1
Original line number Diff line number Diff line
@@ -97,10 +97,25 @@ struct htt_data_tx_desc_frag { 
} __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,

drivers/net/wireless/ath/ath10k/htt_tx.c

+4 −0
Original line number Diff line number Diff line
@@ -496,6 +496,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) 
	u16 msdu_id, flags1 = 0;

	dma_addr_t paddr = 0;

	u32 frags_paddr = 0;

	struct htt_msdu_ext_desc *ext_desc = NULL;



	res = ath10k_htt_tx_inc_pending(htt);

	if (res)
@@ -542,6 +543,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) 
		if (ar->hw_params.continuous_frag_desc) {

			frags = (struct htt_data_tx_desc_frag *)

				&htt->frag_desc.vaddr[msdu_id].frags;

			ext_desc = &htt->frag_desc.vaddr[msdu_id];

			frags[0].tword_addr.paddr_lo =

				__cpu_to_le32(skb_cb->paddr);

			frags[0].tword_addr.paddr_hi = 0;
@@ -603,6 +605,8 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) 
	if (msdu->ip_summed == CHECKSUM_PARTIAL) {

		flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;

		flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;

		if (ar->hw_params.continuous_frag_desc)

			ext_desc->flags |= HTT_MSDU_CHECKSUM_ENABLE;

	}



	/* Prevent firmware from sending up tx inspection requests. There's