7d08c73e7b
sum_needed and cptse flags are received from the guest within each transmit data descriptor. They are not part of the offload context; instead, they determine how to apply a previously received context to the packet being transmitted: - If cptse is set, perform both segmentation and checksum offload using the parameters in the TSO context; otherwise just do checksum offload. (Currently the e1000 device incorrectly stores only one context, which will be fixed in a subsequent patch.) - Depending on the bits set in sum_needed, possibly perform L4 checksum offload and/or IP checksum offload, using the parameters in the appropriate context. Move these flags out of struct e1000x_txd_props, which is otherwise dedicated to storing values from a context descriptor, and into the per-packet TX struct. Signed-off-by: Ed Swierk <eswierk@skyportsystems.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
212 lines
7.8 KiB
C
212 lines
7.8 KiB
C
/*
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* QEMU e1000(e) emulation - shared code
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*
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* Copyright (c) 2008 Qumranet
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*
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* Based on work done by:
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* Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
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* Copyright (c) 2007 Dan Aloni
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* Copyright (c) 2004 Antony T Curtis
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "e1000_regs.h"
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#define defreg(x) x = (E1000_##x >> 2)
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enum {
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defreg(CTRL), defreg(EECD), defreg(EERD), defreg(GPRC),
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defreg(GPTC), defreg(ICR), defreg(ICS), defreg(IMC),
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defreg(IMS), defreg(LEDCTL), defreg(MANC), defreg(MDIC),
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defreg(MPC), defreg(PBA), defreg(RCTL), defreg(RDBAH0),
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defreg(RDBAL0), defreg(RDH0), defreg(RDLEN0), defreg(RDT0),
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defreg(STATUS), defreg(SWSM), defreg(TCTL), defreg(TDBAH),
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defreg(TDBAL), defreg(TDH), defreg(TDLEN), defreg(TDT),
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defreg(TDLEN1), defreg(TDBAL1), defreg(TDBAH1), defreg(TDH1),
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defreg(TDT1), defreg(TORH), defreg(TORL), defreg(TOTH),
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defreg(TOTL), defreg(TPR), defreg(TPT), defreg(TXDCTL),
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defreg(WUFC), defreg(RA), defreg(MTA), defreg(CRCERRS),
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defreg(VFTA), defreg(VET), defreg(RDTR), defreg(RADV),
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defreg(TADV), defreg(ITR), defreg(SCC), defreg(ECOL),
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defreg(MCC), defreg(LATECOL), defreg(COLC), defreg(DC),
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defreg(TNCRS), defreg(SEQEC), defreg(CEXTERR), defreg(RLEC),
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defreg(XONRXC), defreg(XONTXC), defreg(XOFFRXC), defreg(XOFFTXC),
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defreg(FCRUC), defreg(AIT), defreg(TDFH), defreg(TDFT),
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defreg(TDFHS), defreg(TDFTS), defreg(TDFPC), defreg(WUC),
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defreg(WUS), defreg(POEMB), defreg(PBS), defreg(RDFH),
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defreg(RDFT), defreg(RDFHS), defreg(RDFTS), defreg(RDFPC),
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defreg(PBM), defreg(IPAV), defreg(IP4AT), defreg(IP6AT),
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defreg(WUPM), defreg(FFLT), defreg(FFMT), defreg(FFVT),
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defreg(TARC0), defreg(TARC1), defreg(IAM), defreg(EXTCNF_CTRL),
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defreg(GCR), defreg(TIMINCA), defreg(EIAC), defreg(CTRL_EXT),
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defreg(IVAR), defreg(MFUTP01), defreg(MFUTP23), defreg(MANC2H),
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defreg(MFVAL), defreg(MDEF), defreg(FACTPS), defreg(FTFT),
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defreg(RUC), defreg(ROC), defreg(RFC), defreg(RJC),
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defreg(PRC64), defreg(PRC127), defreg(PRC255), defreg(PRC511),
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defreg(PRC1023), defreg(PRC1522), defreg(PTC64), defreg(PTC127),
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defreg(PTC255), defreg(PTC511), defreg(PTC1023), defreg(PTC1522),
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defreg(GORCL), defreg(GORCH), defreg(GOTCL), defreg(GOTCH),
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defreg(RNBC), defreg(BPRC), defreg(MPRC), defreg(RFCTL),
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defreg(PSRCTL), defreg(MPTC), defreg(BPTC), defreg(TSCTFC),
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defreg(IAC), defreg(MGTPRC), defreg(MGTPDC), defreg(MGTPTC),
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defreg(TSCTC), defreg(RXCSUM), defreg(FUNCTAG), defreg(GSCL_1),
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defreg(GSCL_2), defreg(GSCL_3), defreg(GSCL_4), defreg(GSCN_0),
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defreg(GSCN_1), defreg(GSCN_2), defreg(GSCN_3), defreg(GCR2),
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defreg(RAID), defreg(RSRPD), defreg(TIDV), defreg(EITR),
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defreg(MRQC), defreg(RETA), defreg(RSSRK), defreg(RDBAH1),
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defreg(RDBAL1), defreg(RDLEN1), defreg(RDH1), defreg(RDT1),
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defreg(PBACLR), defreg(FCAL), defreg(FCAH), defreg(FCT),
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defreg(FCRTH), defreg(FCRTL), defreg(FCTTV), defreg(FCRTV),
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defreg(FLA), defreg(EEWR), defreg(FLOP), defreg(FLOL),
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defreg(FLSWCTL), defreg(FLSWCNT), defreg(RXDCTL), defreg(RXDCTL1),
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defreg(MAVTV0), defreg(MAVTV1), defreg(MAVTV2), defreg(MAVTV3),
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defreg(TXSTMPL), defreg(TXSTMPH), defreg(SYSTIML), defreg(SYSTIMH),
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defreg(RXCFGL), defreg(RXUDP), defreg(TIMADJL), defreg(TIMADJH),
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defreg(RXSTMPH), defreg(RXSTMPL), defreg(RXSATRL), defreg(RXSATRH),
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defreg(FLASHT), defreg(TIPG), defreg(RDH), defreg(RDT),
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defreg(RDLEN), defreg(RDBAH), defreg(RDBAL),
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defreg(TXDCTL1),
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defreg(FLSWDATA),
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defreg(CTRL_DUP),
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defreg(EXTCNF_SIZE),
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defreg(EEMNGCTL),
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defreg(EEMNGDATA),
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defreg(FLMNGCTL),
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defreg(FLMNGDATA),
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defreg(FLMNGCNT),
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defreg(TSYNCRXCTL),
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defreg(TSYNCTXCTL),
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/* Aliases */
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defreg(RDH0_A), defreg(RDT0_A), defreg(RDTR_A), defreg(RDFH_A),
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defreg(RDFT_A), defreg(TDH_A), defreg(TDT_A), defreg(TIDV_A),
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defreg(TDFH_A), defreg(TDFT_A), defreg(RA_A), defreg(RDBAL0_A),
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defreg(TDBAL_A), defreg(TDLEN_A), defreg(VFTA_A), defreg(RDLEN0_A),
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defreg(FCRTL_A), defreg(FCRTH_A)
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};
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static inline void
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e1000x_inc_reg_if_not_full(uint32_t *mac, int index)
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{
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if (mac[index] != 0xffffffff) {
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mac[index]++;
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}
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}
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static inline void
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e1000x_grow_8reg_if_not_full(uint32_t *mac, int index, int size)
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{
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uint64_t sum = mac[index] | (uint64_t)mac[index + 1] << 32;
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if (sum + size < sum) {
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sum = ~0ULL;
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} else {
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sum += size;
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}
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mac[index] = sum;
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mac[index + 1] = sum >> 32;
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}
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static inline int
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e1000x_vlan_enabled(uint32_t *mac)
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{
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return ((mac[CTRL] & E1000_CTRL_VME) != 0);
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}
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static inline int
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e1000x_is_vlan_txd(uint32_t txd_lower)
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{
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return ((txd_lower & E1000_TXD_CMD_VLE) != 0);
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}
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static inline int
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e1000x_vlan_rx_filter_enabled(uint32_t *mac)
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{
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return ((mac[RCTL] & E1000_RCTL_VFE) != 0);
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}
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static inline int
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e1000x_fcs_len(uint32_t *mac)
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{
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/* FCS aka Ethernet CRC-32. We don't get it from backends and can't
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* fill it in, just pad descriptor length by 4 bytes unless guest
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* told us to strip it off the packet. */
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return (mac[RCTL] & E1000_RCTL_SECRC) ? 0 : 4;
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}
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static inline void
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e1000x_update_regs_on_link_down(uint32_t *mac, uint16_t *phy)
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{
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mac[STATUS] &= ~E1000_STATUS_LU;
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phy[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
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phy[PHY_STATUS] &= ~MII_SR_AUTONEG_COMPLETE;
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phy[PHY_LP_ABILITY] &= ~MII_LPAR_LPACK;
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}
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static inline void
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e1000x_update_regs_on_link_up(uint32_t *mac, uint16_t *phy)
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{
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mac[STATUS] |= E1000_STATUS_LU;
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phy[PHY_STATUS] |= MII_SR_LINK_STATUS;
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}
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void e1000x_update_rx_total_stats(uint32_t *mac,
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size_t data_size,
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size_t data_fcs_size);
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void e1000x_core_prepare_eeprom(uint16_t *eeprom,
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const uint16_t *templ,
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uint32_t templ_size,
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uint16_t dev_id,
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const uint8_t *macaddr);
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uint32_t e1000x_rxbufsize(uint32_t rctl);
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bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac);
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bool e1000x_is_vlan_packet(const uint8_t *buf, uint16_t vet);
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bool e1000x_rx_group_filter(uint32_t *mac, const uint8_t *buf);
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bool e1000x_hw_rx_enabled(uint32_t *mac);
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bool e1000x_is_oversized(uint32_t *mac, size_t size);
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void e1000x_restart_autoneg(uint32_t *mac, uint16_t *phy, QEMUTimer *timer);
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void e1000x_reset_mac_addr(NICState *nic, uint32_t *mac_regs,
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uint8_t *mac_addr);
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void e1000x_update_regs_on_autoneg_done(uint32_t *mac, uint16_t *phy);
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void e1000x_increase_size_stats(uint32_t *mac, const int *size_regs, int size);
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typedef struct e1000x_txd_props {
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uint8_t ipcss;
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uint8_t ipcso;
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uint16_t ipcse;
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uint8_t tucss;
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uint8_t tucso;
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uint16_t tucse;
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uint32_t paylen;
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uint8_t hdr_len;
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uint16_t mss;
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int8_t ip;
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int8_t tcp;
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bool tse;
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} e1000x_txd_props;
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void e1000x_read_tx_ctx_descr(struct e1000_context_desc *d,
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e1000x_txd_props *props);
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