/******************************************************************************
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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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u8 *buf;
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#if MAC_AX_PHL_H2C
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struct rtw_h2c_pkt *h2cb;
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#else
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struct h2c_buf *h2cb;
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#endif
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struct mac_ax_en_tcpipchksum *content;
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h2cb = h2cb_alloc(adapter, H2CB_CLASS_CMD);
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if (!h2cb)
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return MACNPTR;
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buf = h2cb_put(h2cb, sizeof(struct mac_ax_en_tcpipchksum));
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if (!buf) {
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ret = MACNOBUF;
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goto fail;
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}
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content = (struct mac_ax_en_tcpipchksum *)buf;
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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 = h2c_pkt_set_hdr(adapter, h2cb,
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FWCMD_TYPE_H2C,
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FWCMD_H2C_CAT_MAC,
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FWCMD_H2C_CL_FW_OFLD,
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FWCMD_H2C_FUNC_TCPIP_CHKSUM_OFFLOAD_REG,
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0,
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1);
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if (ret)
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goto fail;
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ret = h2c_pkt_build_txd(adapter, h2cb);
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if (ret)
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goto fail;
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#if MAC_AX_PHL_H2C
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ret = PLTFM_TX(h2cb);
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#else
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ret = PLTFM_TX(h2cb->data, h2cb->len);
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#endif
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fail:
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h2cb_free(adapter, h2cb);
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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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