/******************************************************************************
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*
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* Copyright(c) 2019 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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******************************************************************************/
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#include "tcpip_checksum_offload.h"
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#if MAC_AX_FW_REG_OFLD
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u32 mac_tcpip_chksum_ofd(struct mac_ax_adapter *adapter,
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u8 en_tx_chksum_ofd, u8 en_rx_chksum_ofd)
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{
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u32 ret = 0;
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struct h2c_info h2c_info = {0};
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struct mac_ax_en_tcpipchksum *content;
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h2c_info.agg_en = 0;
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h2c_info.content_len = sizeof(struct mac_ax_en_tcpipchksum);
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h2c_info.h2c_cat = FWCMD_H2C_CAT_MAC;
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h2c_info.h2c_class = FWCMD_H2C_CL_FW_OFLD;
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h2c_info.h2c_func = FWCMD_H2C_FUNC_TCPIP_CHKSUM_OFFLOAD_REG;
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h2c_info.rec_ack = 0;
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h2c_info.done_ack = 0;
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content = (struct mac_ax_en_tcpipchksum *)PLTFM_MALLOC(h2c_info.content_len);
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if (!content)
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return MACBUFALLOC;
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content->en_tx_chksum_ofd = en_tx_chksum_ofd;
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content->en_rx_chksum_ofd = en_rx_chksum_ofd;
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ret = mac_h2c_common(adapter, &h2c_info, (u32 *)content);
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PLTFM_FREE(content, h2c_info.content_len);
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return ret;
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}
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#else
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u32 mac_tcpip_chksum_ofd(struct mac_ax_adapter *adapter,
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u8 en_tx_chksum_ofd, u8 en_rx_chksum_ofd)
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{
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u32 val;
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struct mac_ax_intf_ops *ops = adapter_to_intf_ops(adapter);
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if (en_tx_chksum_ofd) {
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val = MAC_REG_R32(R_AX_TX_TCPIP_CHECKSUM_FUNCTION);
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val |= B_AX_HDT_TCPIP_CHKSUM_EN;
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MAC_REG_W32(R_AX_TX_TCPIP_CHECKSUM_FUNCTION, val);
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} else {
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val = MAC_REG_R32(R_AX_TX_TCPIP_CHECKSUM_FUNCTION);
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val &= (~B_AX_HDT_TCPIP_CHKSUM_EN);
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MAC_REG_W32(R_AX_TX_TCPIP_CHECKSUM_FUNCTION, val);
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}
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if (en_rx_chksum_ofd) {
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val = MAC_REG_R32(R_AX_RX_TCPIP_CHECKSUM_FUNCTION);
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val |= B_AX_HDR_TCPIP_CHKSUM_EN;
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MAC_REG_W32((R_AX_RX_TCPIP_CHECKSUM_FUNCTION), val);
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} else {
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val = MAC_REG_R32((R_AX_RX_TCPIP_CHECKSUM_FUNCTION));
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val &= (~B_AX_HDR_TCPIP_CHKSUM_EN);
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MAC_REG_W32((R_AX_RX_TCPIP_CHECKSUM_FUNCTION), val);
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}
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return MACSUCCESS;
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}
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#endif
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u32 mac_chk_rx_tcpip_chksum_ofd(struct mac_ax_adapter *adapter,
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u8 chksum_status)
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{
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u8 chk_val = (chksum_status & 0xF0);
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if (!(chk_val & MAC_AX_CHKOFD_TCP_CHKSUM_VLD))
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return MAC_AX_CHKSUM_OFD_HW_NO_SUPPORT;
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if (chk_val & MAC_AX_CHKOFD_TCP_CHKSUM_ERR)
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return MAC_AX_CHKSUM_OFD_CHKSUM_ERR;
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if (!(chk_val & MAC_AX_CHKOFD_RX_IS_TCP_UDP) &&
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!(chk_val & MAC_AX_CHKOFD_RX_IPV))
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return MAC_AX_CHKSUM_OFD_IPV4_TCP_OK;
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if (!(chk_val & MAC_AX_CHKOFD_RX_IS_TCP_UDP) &&
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(chk_val & MAC_AX_CHKOFD_RX_IPV))
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return MAC_AX_CHKSUM_OFD_IPV6_TCP_OK;
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if ((chk_val & MAC_AX_CHKOFD_RX_IS_TCP_UDP) &&
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!(chk_val & MAC_AX_CHKOFD_RX_IPV))
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return MAC_AX_CHKSUM_OFD_IPV4_UDP_OK;
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return MAC_AX_CHKSUM_OFD_IPV6_UDP_OK;
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}
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