149ab747fSPaolo Bonzini /* 2*116d5546SPeter Crosthwaite * QEMU Cadence GEM emulation 349ab747fSPaolo Bonzini * 449ab747fSPaolo Bonzini * Copyright (c) 2011 Xilinx, Inc. 549ab747fSPaolo Bonzini * 649ab747fSPaolo Bonzini * Permission is hereby granted, free of charge, to any person obtaining a copy 749ab747fSPaolo Bonzini * of this software and associated documentation files (the "Software"), to deal 849ab747fSPaolo Bonzini * in the Software without restriction, including without limitation the rights 949ab747fSPaolo Bonzini * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 1049ab747fSPaolo Bonzini * copies of the Software, and to permit persons to whom the Software is 1149ab747fSPaolo Bonzini * furnished to do so, subject to the following conditions: 1249ab747fSPaolo Bonzini * 1349ab747fSPaolo Bonzini * The above copyright notice and this permission notice shall be included in 1449ab747fSPaolo Bonzini * all copies or substantial portions of the Software. 1549ab747fSPaolo Bonzini * 1649ab747fSPaolo Bonzini * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1749ab747fSPaolo Bonzini * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1849ab747fSPaolo Bonzini * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 1949ab747fSPaolo Bonzini * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 2049ab747fSPaolo Bonzini * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 2149ab747fSPaolo Bonzini * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 2249ab747fSPaolo Bonzini * THE SOFTWARE. 2349ab747fSPaolo Bonzini */ 2449ab747fSPaolo Bonzini 2549ab747fSPaolo Bonzini #include <zlib.h> /* For crc32 */ 2649ab747fSPaolo Bonzini 2749ab747fSPaolo Bonzini #include "hw/sysbus.h" 2849ab747fSPaolo Bonzini #include "net/net.h" 2949ab747fSPaolo Bonzini #include "net/checksum.h" 3049ab747fSPaolo Bonzini 3149ab747fSPaolo Bonzini #ifdef CADENCE_GEM_ERR_DEBUG 3249ab747fSPaolo Bonzini #define DB_PRINT(...) do { \ 3349ab747fSPaolo Bonzini fprintf(stderr, ": %s: ", __func__); \ 3449ab747fSPaolo Bonzini fprintf(stderr, ## __VA_ARGS__); \ 3549ab747fSPaolo Bonzini } while (0); 3649ab747fSPaolo Bonzini #else 3749ab747fSPaolo Bonzini #define DB_PRINT(...) 3849ab747fSPaolo Bonzini #endif 3949ab747fSPaolo Bonzini 4049ab747fSPaolo Bonzini #define GEM_NWCTRL (0x00000000/4) /* Network Control reg */ 4149ab747fSPaolo Bonzini #define GEM_NWCFG (0x00000004/4) /* Network Config reg */ 4249ab747fSPaolo Bonzini #define GEM_NWSTATUS (0x00000008/4) /* Network Status reg */ 4349ab747fSPaolo Bonzini #define GEM_USERIO (0x0000000C/4) /* User IO reg */ 4449ab747fSPaolo Bonzini #define GEM_DMACFG (0x00000010/4) /* DMA Control reg */ 4549ab747fSPaolo Bonzini #define GEM_TXSTATUS (0x00000014/4) /* TX Status reg */ 4649ab747fSPaolo Bonzini #define GEM_RXQBASE (0x00000018/4) /* RX Q Base address reg */ 4749ab747fSPaolo Bonzini #define GEM_TXQBASE (0x0000001C/4) /* TX Q Base address reg */ 4849ab747fSPaolo Bonzini #define GEM_RXSTATUS (0x00000020/4) /* RX Status reg */ 4949ab747fSPaolo Bonzini #define GEM_ISR (0x00000024/4) /* Interrupt Status reg */ 5049ab747fSPaolo Bonzini #define GEM_IER (0x00000028/4) /* Interrupt Enable reg */ 5149ab747fSPaolo Bonzini #define GEM_IDR (0x0000002C/4) /* Interrupt Disable reg */ 5249ab747fSPaolo Bonzini #define GEM_IMR (0x00000030/4) /* Interrupt Mask reg */ 5349ab747fSPaolo Bonzini #define GEM_PHYMNTNC (0x00000034/4) /* Phy Maintaince reg */ 5449ab747fSPaolo Bonzini #define GEM_RXPAUSE (0x00000038/4) /* RX Pause Time reg */ 5549ab747fSPaolo Bonzini #define GEM_TXPAUSE (0x0000003C/4) /* TX Pause Time reg */ 5649ab747fSPaolo Bonzini #define GEM_TXPARTIALSF (0x00000040/4) /* TX Partial Store and Forward */ 5749ab747fSPaolo Bonzini #define GEM_RXPARTIALSF (0x00000044/4) /* RX Partial Store and Forward */ 5849ab747fSPaolo Bonzini #define GEM_HASHLO (0x00000080/4) /* Hash Low address reg */ 5949ab747fSPaolo Bonzini #define GEM_HASHHI (0x00000084/4) /* Hash High address reg */ 6049ab747fSPaolo Bonzini #define GEM_SPADDR1LO (0x00000088/4) /* Specific addr 1 low reg */ 6149ab747fSPaolo Bonzini #define GEM_SPADDR1HI (0x0000008C/4) /* Specific addr 1 high reg */ 6249ab747fSPaolo Bonzini #define GEM_SPADDR2LO (0x00000090/4) /* Specific addr 2 low reg */ 6349ab747fSPaolo Bonzini #define GEM_SPADDR2HI (0x00000094/4) /* Specific addr 2 high reg */ 6449ab747fSPaolo Bonzini #define GEM_SPADDR3LO (0x00000098/4) /* Specific addr 3 low reg */ 6549ab747fSPaolo Bonzini #define GEM_SPADDR3HI (0x0000009C/4) /* Specific addr 3 high reg */ 6649ab747fSPaolo Bonzini #define GEM_SPADDR4LO (0x000000A0/4) /* Specific addr 4 low reg */ 6749ab747fSPaolo Bonzini #define GEM_SPADDR4HI (0x000000A4/4) /* Specific addr 4 high reg */ 6849ab747fSPaolo Bonzini #define GEM_TIDMATCH1 (0x000000A8/4) /* Type ID1 Match reg */ 6949ab747fSPaolo Bonzini #define GEM_TIDMATCH2 (0x000000AC/4) /* Type ID2 Match reg */ 7049ab747fSPaolo Bonzini #define GEM_TIDMATCH3 (0x000000B0/4) /* Type ID3 Match reg */ 7149ab747fSPaolo Bonzini #define GEM_TIDMATCH4 (0x000000B4/4) /* Type ID4 Match reg */ 7249ab747fSPaolo Bonzini #define GEM_WOLAN (0x000000B8/4) /* Wake on LAN reg */ 7349ab747fSPaolo Bonzini #define GEM_IPGSTRETCH (0x000000BC/4) /* IPG Stretch reg */ 7449ab747fSPaolo Bonzini #define GEM_SVLAN (0x000000C0/4) /* Stacked VLAN reg */ 7549ab747fSPaolo Bonzini #define GEM_MODID (0x000000FC/4) /* Module ID reg */ 7649ab747fSPaolo Bonzini #define GEM_OCTTXLO (0x00000100/4) /* Octects transmitted Low reg */ 7749ab747fSPaolo Bonzini #define GEM_OCTTXHI (0x00000104/4) /* Octects transmitted High reg */ 7849ab747fSPaolo Bonzini #define GEM_TXCNT (0x00000108/4) /* Error-free Frames transmitted */ 7949ab747fSPaolo Bonzini #define GEM_TXBCNT (0x0000010C/4) /* Error-free Broadcast Frames */ 8049ab747fSPaolo Bonzini #define GEM_TXMCNT (0x00000110/4) /* Error-free Multicast Frame */ 8149ab747fSPaolo Bonzini #define GEM_TXPAUSECNT (0x00000114/4) /* Pause Frames Transmitted */ 8249ab747fSPaolo Bonzini #define GEM_TX64CNT (0x00000118/4) /* Error-free 64 TX */ 8349ab747fSPaolo Bonzini #define GEM_TX65CNT (0x0000011C/4) /* Error-free 65-127 TX */ 8449ab747fSPaolo Bonzini #define GEM_TX128CNT (0x00000120/4) /* Error-free 128-255 TX */ 8549ab747fSPaolo Bonzini #define GEM_TX256CNT (0x00000124/4) /* Error-free 256-511 */ 8649ab747fSPaolo Bonzini #define GEM_TX512CNT (0x00000128/4) /* Error-free 512-1023 TX */ 8749ab747fSPaolo Bonzini #define GEM_TX1024CNT (0x0000012C/4) /* Error-free 1024-1518 TX */ 8849ab747fSPaolo Bonzini #define GEM_TX1519CNT (0x00000130/4) /* Error-free larger than 1519 TX */ 8949ab747fSPaolo Bonzini #define GEM_TXURUNCNT (0x00000134/4) /* TX under run error counter */ 9049ab747fSPaolo Bonzini #define GEM_SINGLECOLLCNT (0x00000138/4) /* Single Collision Frames */ 9149ab747fSPaolo Bonzini #define GEM_MULTCOLLCNT (0x0000013C/4) /* Multiple Collision Frames */ 9249ab747fSPaolo Bonzini #define GEM_EXCESSCOLLCNT (0x00000140/4) /* Excessive Collision Frames */ 9349ab747fSPaolo Bonzini #define GEM_LATECOLLCNT (0x00000144/4) /* Late Collision Frames */ 9449ab747fSPaolo Bonzini #define GEM_DEFERTXCNT (0x00000148/4) /* Deferred Transmission Frames */ 9549ab747fSPaolo Bonzini #define GEM_CSENSECNT (0x0000014C/4) /* Carrier Sense Error Counter */ 9649ab747fSPaolo Bonzini #define GEM_OCTRXLO (0x00000150/4) /* Octects Received register Low */ 9749ab747fSPaolo Bonzini #define GEM_OCTRXHI (0x00000154/4) /* Octects Received register High */ 9849ab747fSPaolo Bonzini #define GEM_RXCNT (0x00000158/4) /* Error-free Frames Received */ 9949ab747fSPaolo Bonzini #define GEM_RXBROADCNT (0x0000015C/4) /* Error-free Broadcast Frames RX */ 10049ab747fSPaolo Bonzini #define GEM_RXMULTICNT (0x00000160/4) /* Error-free Multicast Frames RX */ 10149ab747fSPaolo Bonzini #define GEM_RXPAUSECNT (0x00000164/4) /* Pause Frames Received Counter */ 10249ab747fSPaolo Bonzini #define GEM_RX64CNT (0x00000168/4) /* Error-free 64 byte Frames RX */ 10349ab747fSPaolo Bonzini #define GEM_RX65CNT (0x0000016C/4) /* Error-free 65-127B Frames RX */ 10449ab747fSPaolo Bonzini #define GEM_RX128CNT (0x00000170/4) /* Error-free 128-255B Frames RX */ 10549ab747fSPaolo Bonzini #define GEM_RX256CNT (0x00000174/4) /* Error-free 256-512B Frames RX */ 10649ab747fSPaolo Bonzini #define GEM_RX512CNT (0x00000178/4) /* Error-free 512-1023B Frames RX */ 10749ab747fSPaolo Bonzini #define GEM_RX1024CNT (0x0000017C/4) /* Error-free 1024-1518B Frames RX */ 10849ab747fSPaolo Bonzini #define GEM_RX1519CNT (0x00000180/4) /* Error-free 1519-max Frames RX */ 10949ab747fSPaolo Bonzini #define GEM_RXUNDERCNT (0x00000184/4) /* Undersize Frames Received */ 11049ab747fSPaolo Bonzini #define GEM_RXOVERCNT (0x00000188/4) /* Oversize Frames Received */ 11149ab747fSPaolo Bonzini #define GEM_RXJABCNT (0x0000018C/4) /* Jabbers Received Counter */ 11249ab747fSPaolo Bonzini #define GEM_RXFCSCNT (0x00000190/4) /* Frame Check seq. Error Counter */ 11349ab747fSPaolo Bonzini #define GEM_RXLENERRCNT (0x00000194/4) /* Length Field Error Counter */ 11449ab747fSPaolo Bonzini #define GEM_RXSYMERRCNT (0x00000198/4) /* Symbol Error Counter */ 11549ab747fSPaolo Bonzini #define GEM_RXALIGNERRCNT (0x0000019C/4) /* Alignment Error Counter */ 11649ab747fSPaolo Bonzini #define GEM_RXRSCERRCNT (0x000001A0/4) /* Receive Resource Error Counter */ 11749ab747fSPaolo Bonzini #define GEM_RXORUNCNT (0x000001A4/4) /* Receive Overrun Counter */ 11849ab747fSPaolo Bonzini #define GEM_RXIPCSERRCNT (0x000001A8/4) /* IP header Checksum Error Counter */ 11949ab747fSPaolo Bonzini #define GEM_RXTCPCCNT (0x000001AC/4) /* TCP Checksum Error Counter */ 12049ab747fSPaolo Bonzini #define GEM_RXUDPCCNT (0x000001B0/4) /* UDP Checksum Error Counter */ 12149ab747fSPaolo Bonzini 12249ab747fSPaolo Bonzini #define GEM_1588S (0x000001D0/4) /* 1588 Timer Seconds */ 12349ab747fSPaolo Bonzini #define GEM_1588NS (0x000001D4/4) /* 1588 Timer Nanoseconds */ 12449ab747fSPaolo Bonzini #define GEM_1588ADJ (0x000001D8/4) /* 1588 Timer Adjust */ 12549ab747fSPaolo Bonzini #define GEM_1588INC (0x000001DC/4) /* 1588 Timer Increment */ 12649ab747fSPaolo Bonzini #define GEM_PTPETXS (0x000001E0/4) /* PTP Event Frame Transmitted (s) */ 12749ab747fSPaolo Bonzini #define GEM_PTPETXNS (0x000001E4/4) /* PTP Event Frame Transmitted (ns) */ 12849ab747fSPaolo Bonzini #define GEM_PTPERXS (0x000001E8/4) /* PTP Event Frame Received (s) */ 12949ab747fSPaolo Bonzini #define GEM_PTPERXNS (0x000001EC/4) /* PTP Event Frame Received (ns) */ 13049ab747fSPaolo Bonzini #define GEM_PTPPTXS (0x000001E0/4) /* PTP Peer Frame Transmitted (s) */ 13149ab747fSPaolo Bonzini #define GEM_PTPPTXNS (0x000001E4/4) /* PTP Peer Frame Transmitted (ns) */ 13249ab747fSPaolo Bonzini #define GEM_PTPPRXS (0x000001E8/4) /* PTP Peer Frame Received (s) */ 13349ab747fSPaolo Bonzini #define GEM_PTPPRXNS (0x000001EC/4) /* PTP Peer Frame Received (ns) */ 13449ab747fSPaolo Bonzini 13549ab747fSPaolo Bonzini /* Design Configuration Registers */ 13649ab747fSPaolo Bonzini #define GEM_DESCONF (0x00000280/4) 13749ab747fSPaolo Bonzini #define GEM_DESCONF2 (0x00000284/4) 13849ab747fSPaolo Bonzini #define GEM_DESCONF3 (0x00000288/4) 13949ab747fSPaolo Bonzini #define GEM_DESCONF4 (0x0000028C/4) 14049ab747fSPaolo Bonzini #define GEM_DESCONF5 (0x00000290/4) 14149ab747fSPaolo Bonzini #define GEM_DESCONF6 (0x00000294/4) 14249ab747fSPaolo Bonzini #define GEM_DESCONF7 (0x00000298/4) 14349ab747fSPaolo Bonzini 14449ab747fSPaolo Bonzini #define GEM_MAXREG (0x00000640/4) /* Last valid GEM address */ 14549ab747fSPaolo Bonzini 14649ab747fSPaolo Bonzini /*****************************************/ 14749ab747fSPaolo Bonzini #define GEM_NWCTRL_TXSTART 0x00000200 /* Transmit Enable */ 14849ab747fSPaolo Bonzini #define GEM_NWCTRL_TXENA 0x00000008 /* Transmit Enable */ 14949ab747fSPaolo Bonzini #define GEM_NWCTRL_RXENA 0x00000004 /* Receive Enable */ 15049ab747fSPaolo Bonzini #define GEM_NWCTRL_LOCALLOOP 0x00000002 /* Local Loopback */ 15149ab747fSPaolo Bonzini 15249ab747fSPaolo Bonzini #define GEM_NWCFG_STRIP_FCS 0x00020000 /* Strip FCS field */ 15349ab747fSPaolo Bonzini #define GEM_NWCFG_LERR_DISC 0x00010000 /* Discard RX frames with lenth err */ 15449ab747fSPaolo Bonzini #define GEM_NWCFG_BUFF_OFST_M 0x0000C000 /* Receive buffer offset mask */ 15549ab747fSPaolo Bonzini #define GEM_NWCFG_BUFF_OFST_S 14 /* Receive buffer offset shift */ 15649ab747fSPaolo Bonzini #define GEM_NWCFG_UCAST_HASH 0x00000080 /* accept unicast if hash match */ 15749ab747fSPaolo Bonzini #define GEM_NWCFG_MCAST_HASH 0x00000040 /* accept multicast if hash match */ 15849ab747fSPaolo Bonzini #define GEM_NWCFG_BCAST_REJ 0x00000020 /* Reject broadcast packets */ 15949ab747fSPaolo Bonzini #define GEM_NWCFG_PROMISC 0x00000010 /* Accept all packets */ 16049ab747fSPaolo Bonzini 16149ab747fSPaolo Bonzini #define GEM_DMACFG_RBUFSZ_M 0x007F0000 /* DMA RX Buffer Size mask */ 16249ab747fSPaolo Bonzini #define GEM_DMACFG_RBUFSZ_S 16 /* DMA RX Buffer Size shift */ 16349ab747fSPaolo Bonzini #define GEM_DMACFG_RBUFSZ_MUL 64 /* DMA RX Buffer Size multiplier */ 16449ab747fSPaolo Bonzini #define GEM_DMACFG_TXCSUM_OFFL 0x00000800 /* Transmit checksum offload */ 16549ab747fSPaolo Bonzini 16649ab747fSPaolo Bonzini #define GEM_TXSTATUS_TXCMPL 0x00000020 /* Transmit Complete */ 16749ab747fSPaolo Bonzini #define GEM_TXSTATUS_USED 0x00000001 /* sw owned descriptor encountered */ 16849ab747fSPaolo Bonzini 16949ab747fSPaolo Bonzini #define GEM_RXSTATUS_FRMRCVD 0x00000002 /* Frame received */ 17049ab747fSPaolo Bonzini #define GEM_RXSTATUS_NOBUF 0x00000001 /* Buffer unavailable */ 17149ab747fSPaolo Bonzini 17249ab747fSPaolo Bonzini /* GEM_ISR GEM_IER GEM_IDR GEM_IMR */ 17349ab747fSPaolo Bonzini #define GEM_INT_TXCMPL 0x00000080 /* Transmit Complete */ 17449ab747fSPaolo Bonzini #define GEM_INT_TXUSED 0x00000008 17549ab747fSPaolo Bonzini #define GEM_INT_RXUSED 0x00000004 17649ab747fSPaolo Bonzini #define GEM_INT_RXCMPL 0x00000002 17749ab747fSPaolo Bonzini 17849ab747fSPaolo Bonzini #define GEM_PHYMNTNC_OP_R 0x20000000 /* read operation */ 17949ab747fSPaolo Bonzini #define GEM_PHYMNTNC_OP_W 0x10000000 /* write operation */ 18049ab747fSPaolo Bonzini #define GEM_PHYMNTNC_ADDR 0x0F800000 /* Address bits */ 18149ab747fSPaolo Bonzini #define GEM_PHYMNTNC_ADDR_SHFT 23 18249ab747fSPaolo Bonzini #define GEM_PHYMNTNC_REG 0x007C0000 /* register bits */ 18349ab747fSPaolo Bonzini #define GEM_PHYMNTNC_REG_SHIFT 18 18449ab747fSPaolo Bonzini 18549ab747fSPaolo Bonzini /* Marvell PHY definitions */ 18649ab747fSPaolo Bonzini #define BOARD_PHY_ADDRESS 23 /* PHY address we will emulate a device at */ 18749ab747fSPaolo Bonzini 18849ab747fSPaolo Bonzini #define PHY_REG_CONTROL 0 18949ab747fSPaolo Bonzini #define PHY_REG_STATUS 1 19049ab747fSPaolo Bonzini #define PHY_REG_PHYID1 2 19149ab747fSPaolo Bonzini #define PHY_REG_PHYID2 3 19249ab747fSPaolo Bonzini #define PHY_REG_ANEGADV 4 19349ab747fSPaolo Bonzini #define PHY_REG_LINKPABIL 5 19449ab747fSPaolo Bonzini #define PHY_REG_ANEGEXP 6 19549ab747fSPaolo Bonzini #define PHY_REG_NEXTP 7 19649ab747fSPaolo Bonzini #define PHY_REG_LINKPNEXTP 8 19749ab747fSPaolo Bonzini #define PHY_REG_100BTCTRL 9 19849ab747fSPaolo Bonzini #define PHY_REG_1000BTSTAT 10 19949ab747fSPaolo Bonzini #define PHY_REG_EXTSTAT 15 20049ab747fSPaolo Bonzini #define PHY_REG_PHYSPCFC_CTL 16 20149ab747fSPaolo Bonzini #define PHY_REG_PHYSPCFC_ST 17 20249ab747fSPaolo Bonzini #define PHY_REG_INT_EN 18 20349ab747fSPaolo Bonzini #define PHY_REG_INT_ST 19 20449ab747fSPaolo Bonzini #define PHY_REG_EXT_PHYSPCFC_CTL 20 20549ab747fSPaolo Bonzini #define PHY_REG_RXERR 21 20649ab747fSPaolo Bonzini #define PHY_REG_EACD 22 20749ab747fSPaolo Bonzini #define PHY_REG_LED 24 20849ab747fSPaolo Bonzini #define PHY_REG_LED_OVRD 25 20949ab747fSPaolo Bonzini #define PHY_REG_EXT_PHYSPCFC_CTL2 26 21049ab747fSPaolo Bonzini #define PHY_REG_EXT_PHYSPCFC_ST 27 21149ab747fSPaolo Bonzini #define PHY_REG_CABLE_DIAG 28 21249ab747fSPaolo Bonzini 21349ab747fSPaolo Bonzini #define PHY_REG_CONTROL_RST 0x8000 21449ab747fSPaolo Bonzini #define PHY_REG_CONTROL_LOOP 0x4000 21549ab747fSPaolo Bonzini #define PHY_REG_CONTROL_ANEG 0x1000 21649ab747fSPaolo Bonzini 21749ab747fSPaolo Bonzini #define PHY_REG_STATUS_LINK 0x0004 21849ab747fSPaolo Bonzini #define PHY_REG_STATUS_ANEGCMPL 0x0020 21949ab747fSPaolo Bonzini 22049ab747fSPaolo Bonzini #define PHY_REG_INT_ST_ANEGCMPL 0x0800 22149ab747fSPaolo Bonzini #define PHY_REG_INT_ST_LINKC 0x0400 22249ab747fSPaolo Bonzini #define PHY_REG_INT_ST_ENERGY 0x0010 22349ab747fSPaolo Bonzini 22449ab747fSPaolo Bonzini /***********************************************************************/ 22563af1e0cSPeter Crosthwaite #define GEM_RX_REJECT (-1) 22663af1e0cSPeter Crosthwaite #define GEM_RX_PROMISCUOUS_ACCEPT (-2) 22763af1e0cSPeter Crosthwaite #define GEM_RX_BROADCAST_ACCEPT (-3) 22863af1e0cSPeter Crosthwaite #define GEM_RX_MULTICAST_HASH_ACCEPT (-4) 22963af1e0cSPeter Crosthwaite #define GEM_RX_UNICAST_HASH_ACCEPT (-5) 23063af1e0cSPeter Crosthwaite 23163af1e0cSPeter Crosthwaite #define GEM_RX_SAR_ACCEPT 0 23249ab747fSPaolo Bonzini 23349ab747fSPaolo Bonzini /***********************************************************************/ 23449ab747fSPaolo Bonzini 23549ab747fSPaolo Bonzini #define DESC_1_USED 0x80000000 23649ab747fSPaolo Bonzini #define DESC_1_LENGTH 0x00001FFF 23749ab747fSPaolo Bonzini 23849ab747fSPaolo Bonzini #define DESC_1_TX_WRAP 0x40000000 23949ab747fSPaolo Bonzini #define DESC_1_TX_LAST 0x00008000 24049ab747fSPaolo Bonzini 24149ab747fSPaolo Bonzini #define DESC_0_RX_WRAP 0x00000002 24249ab747fSPaolo Bonzini #define DESC_0_RX_OWNERSHIP 0x00000001 24349ab747fSPaolo Bonzini 24463af1e0cSPeter Crosthwaite #define R_DESC_1_RX_SAR_SHIFT 25 24563af1e0cSPeter Crosthwaite #define R_DESC_1_RX_SAR_LENGTH 2 246a03f7429SPeter Crosthwaite #define R_DESC_1_RX_SAR_MATCH (1 << 27) 24763af1e0cSPeter Crosthwaite #define R_DESC_1_RX_UNICAST_HASH (1 << 29) 24863af1e0cSPeter Crosthwaite #define R_DESC_1_RX_MULTICAST_HASH (1 << 30) 24963af1e0cSPeter Crosthwaite #define R_DESC_1_RX_BROADCAST (1 << 31) 25063af1e0cSPeter Crosthwaite 25149ab747fSPaolo Bonzini #define DESC_1_RX_SOF 0x00004000 25249ab747fSPaolo Bonzini #define DESC_1_RX_EOF 0x00008000 25349ab747fSPaolo Bonzini 25449ab747fSPaolo Bonzini static inline unsigned tx_desc_get_buffer(unsigned *desc) 25549ab747fSPaolo Bonzini { 25649ab747fSPaolo Bonzini return desc[0]; 25749ab747fSPaolo Bonzini } 25849ab747fSPaolo Bonzini 25949ab747fSPaolo Bonzini static inline unsigned tx_desc_get_used(unsigned *desc) 26049ab747fSPaolo Bonzini { 26149ab747fSPaolo Bonzini return (desc[1] & DESC_1_USED) ? 1 : 0; 26249ab747fSPaolo Bonzini } 26349ab747fSPaolo Bonzini 26449ab747fSPaolo Bonzini static inline void tx_desc_set_used(unsigned *desc) 26549ab747fSPaolo Bonzini { 26649ab747fSPaolo Bonzini desc[1] |= DESC_1_USED; 26749ab747fSPaolo Bonzini } 26849ab747fSPaolo Bonzini 26949ab747fSPaolo Bonzini static inline unsigned tx_desc_get_wrap(unsigned *desc) 27049ab747fSPaolo Bonzini { 27149ab747fSPaolo Bonzini return (desc[1] & DESC_1_TX_WRAP) ? 1 : 0; 27249ab747fSPaolo Bonzini } 27349ab747fSPaolo Bonzini 27449ab747fSPaolo Bonzini static inline unsigned tx_desc_get_last(unsigned *desc) 27549ab747fSPaolo Bonzini { 27649ab747fSPaolo Bonzini return (desc[1] & DESC_1_TX_LAST) ? 1 : 0; 27749ab747fSPaolo Bonzini } 27849ab747fSPaolo Bonzini 27949ab747fSPaolo Bonzini static inline unsigned tx_desc_get_length(unsigned *desc) 28049ab747fSPaolo Bonzini { 28149ab747fSPaolo Bonzini return desc[1] & DESC_1_LENGTH; 28249ab747fSPaolo Bonzini } 28349ab747fSPaolo Bonzini 28449ab747fSPaolo Bonzini static inline void print_gem_tx_desc(unsigned *desc) 28549ab747fSPaolo Bonzini { 28649ab747fSPaolo Bonzini DB_PRINT("TXDESC:\n"); 28749ab747fSPaolo Bonzini DB_PRINT("bufaddr: 0x%08x\n", *desc); 28849ab747fSPaolo Bonzini DB_PRINT("used_hw: %d\n", tx_desc_get_used(desc)); 28949ab747fSPaolo Bonzini DB_PRINT("wrap: %d\n", tx_desc_get_wrap(desc)); 29049ab747fSPaolo Bonzini DB_PRINT("last: %d\n", tx_desc_get_last(desc)); 29149ab747fSPaolo Bonzini DB_PRINT("length: %d\n", tx_desc_get_length(desc)); 29249ab747fSPaolo Bonzini } 29349ab747fSPaolo Bonzini 29449ab747fSPaolo Bonzini static inline unsigned rx_desc_get_buffer(unsigned *desc) 29549ab747fSPaolo Bonzini { 29649ab747fSPaolo Bonzini return desc[0] & ~0x3UL; 29749ab747fSPaolo Bonzini } 29849ab747fSPaolo Bonzini 29949ab747fSPaolo Bonzini static inline unsigned rx_desc_get_wrap(unsigned *desc) 30049ab747fSPaolo Bonzini { 30149ab747fSPaolo Bonzini return desc[0] & DESC_0_RX_WRAP ? 1 : 0; 30249ab747fSPaolo Bonzini } 30349ab747fSPaolo Bonzini 30449ab747fSPaolo Bonzini static inline unsigned rx_desc_get_ownership(unsigned *desc) 30549ab747fSPaolo Bonzini { 30649ab747fSPaolo Bonzini return desc[0] & DESC_0_RX_OWNERSHIP ? 1 : 0; 30749ab747fSPaolo Bonzini } 30849ab747fSPaolo Bonzini 30949ab747fSPaolo Bonzini static inline void rx_desc_set_ownership(unsigned *desc) 31049ab747fSPaolo Bonzini { 31149ab747fSPaolo Bonzini desc[0] |= DESC_0_RX_OWNERSHIP; 31249ab747fSPaolo Bonzini } 31349ab747fSPaolo Bonzini 31449ab747fSPaolo Bonzini static inline void rx_desc_set_sof(unsigned *desc) 31549ab747fSPaolo Bonzini { 31649ab747fSPaolo Bonzini desc[1] |= DESC_1_RX_SOF; 31749ab747fSPaolo Bonzini } 31849ab747fSPaolo Bonzini 31949ab747fSPaolo Bonzini static inline void rx_desc_set_eof(unsigned *desc) 32049ab747fSPaolo Bonzini { 32149ab747fSPaolo Bonzini desc[1] |= DESC_1_RX_EOF; 32249ab747fSPaolo Bonzini } 32349ab747fSPaolo Bonzini 32449ab747fSPaolo Bonzini static inline void rx_desc_set_length(unsigned *desc, unsigned len) 32549ab747fSPaolo Bonzini { 32649ab747fSPaolo Bonzini desc[1] &= ~DESC_1_LENGTH; 32749ab747fSPaolo Bonzini desc[1] |= len; 32849ab747fSPaolo Bonzini } 32949ab747fSPaolo Bonzini 33063af1e0cSPeter Crosthwaite static inline void rx_desc_set_broadcast(unsigned *desc) 33163af1e0cSPeter Crosthwaite { 33263af1e0cSPeter Crosthwaite desc[1] |= R_DESC_1_RX_BROADCAST; 33363af1e0cSPeter Crosthwaite } 33463af1e0cSPeter Crosthwaite 33563af1e0cSPeter Crosthwaite static inline void rx_desc_set_unicast_hash(unsigned *desc) 33663af1e0cSPeter Crosthwaite { 33763af1e0cSPeter Crosthwaite desc[1] |= R_DESC_1_RX_UNICAST_HASH; 33863af1e0cSPeter Crosthwaite } 33963af1e0cSPeter Crosthwaite 34063af1e0cSPeter Crosthwaite static inline void rx_desc_set_multicast_hash(unsigned *desc) 34163af1e0cSPeter Crosthwaite { 34263af1e0cSPeter Crosthwaite desc[1] |= R_DESC_1_RX_MULTICAST_HASH; 34363af1e0cSPeter Crosthwaite } 34463af1e0cSPeter Crosthwaite 34563af1e0cSPeter Crosthwaite static inline void rx_desc_set_sar(unsigned *desc, int sar_idx) 34663af1e0cSPeter Crosthwaite { 34763af1e0cSPeter Crosthwaite desc[1] = deposit32(desc[1], R_DESC_1_RX_SAR_SHIFT, R_DESC_1_RX_SAR_LENGTH, 34863af1e0cSPeter Crosthwaite sar_idx); 349a03f7429SPeter Crosthwaite desc[1] |= R_DESC_1_RX_SAR_MATCH; 35063af1e0cSPeter Crosthwaite } 35163af1e0cSPeter Crosthwaite 352318643beSAndreas Färber #define TYPE_CADENCE_GEM "cadence_gem" 353318643beSAndreas Färber #define GEM(obj) OBJECT_CHECK(GemState, (obj), TYPE_CADENCE_GEM) 354318643beSAndreas Färber 355318643beSAndreas Färber typedef struct GemState { 356318643beSAndreas Färber SysBusDevice parent_obj; 357318643beSAndreas Färber 35849ab747fSPaolo Bonzini MemoryRegion iomem; 35949ab747fSPaolo Bonzini NICState *nic; 36049ab747fSPaolo Bonzini NICConf conf; 36149ab747fSPaolo Bonzini qemu_irq irq; 36249ab747fSPaolo Bonzini 36349ab747fSPaolo Bonzini /* GEM registers backing store */ 36449ab747fSPaolo Bonzini uint32_t regs[GEM_MAXREG]; 36549ab747fSPaolo Bonzini /* Mask of register bits which are write only */ 36649ab747fSPaolo Bonzini uint32_t regs_wo[GEM_MAXREG]; 36749ab747fSPaolo Bonzini /* Mask of register bits which are read only */ 36849ab747fSPaolo Bonzini uint32_t regs_ro[GEM_MAXREG]; 36949ab747fSPaolo Bonzini /* Mask of register bits which are clear on read */ 37049ab747fSPaolo Bonzini uint32_t regs_rtc[GEM_MAXREG]; 37149ab747fSPaolo Bonzini /* Mask of register bits which are write 1 to clear */ 37249ab747fSPaolo Bonzini uint32_t regs_w1c[GEM_MAXREG]; 37349ab747fSPaolo Bonzini 37449ab747fSPaolo Bonzini /* PHY registers backing store */ 37549ab747fSPaolo Bonzini uint16_t phy_regs[32]; 37649ab747fSPaolo Bonzini 37749ab747fSPaolo Bonzini uint8_t phy_loop; /* Are we in phy loopback? */ 37849ab747fSPaolo Bonzini 37949ab747fSPaolo Bonzini /* The current DMA descriptor pointers */ 38049ab747fSPaolo Bonzini uint32_t rx_desc_addr; 38149ab747fSPaolo Bonzini uint32_t tx_desc_addr; 38249ab747fSPaolo Bonzini 3833ae5725fSPeter Crosthwaite uint8_t can_rx_state; /* Debug only */ 3843ae5725fSPeter Crosthwaite 38506c2fe95SPeter Crosthwaite unsigned rx_desc[2]; 38606c2fe95SPeter Crosthwaite 38764eb9301SPeter Crosthwaite bool sar_active[4]; 38849ab747fSPaolo Bonzini } GemState; 38949ab747fSPaolo Bonzini 39049ab747fSPaolo Bonzini /* The broadcast MAC address: 0xFFFFFFFFFFFF */ 3916a0a70b0SStefan Weil static const uint8_t broadcast_addr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 39249ab747fSPaolo Bonzini 39349ab747fSPaolo Bonzini /* 39449ab747fSPaolo Bonzini * gem_init_register_masks: 39549ab747fSPaolo Bonzini * One time initialization. 39649ab747fSPaolo Bonzini * Set masks to identify which register bits have magical clear properties 39749ab747fSPaolo Bonzini */ 39849ab747fSPaolo Bonzini static void gem_init_register_masks(GemState *s) 39949ab747fSPaolo Bonzini { 40049ab747fSPaolo Bonzini /* Mask of register bits which are read only*/ 40149ab747fSPaolo Bonzini memset(&s->regs_ro[0], 0, sizeof(s->regs_ro)); 40249ab747fSPaolo Bonzini s->regs_ro[GEM_NWCTRL] = 0xFFF80000; 40349ab747fSPaolo Bonzini s->regs_ro[GEM_NWSTATUS] = 0xFFFFFFFF; 40449ab747fSPaolo Bonzini s->regs_ro[GEM_DMACFG] = 0xFE00F000; 40549ab747fSPaolo Bonzini s->regs_ro[GEM_TXSTATUS] = 0xFFFFFE08; 40649ab747fSPaolo Bonzini s->regs_ro[GEM_RXQBASE] = 0x00000003; 40749ab747fSPaolo Bonzini s->regs_ro[GEM_TXQBASE] = 0x00000003; 40849ab747fSPaolo Bonzini s->regs_ro[GEM_RXSTATUS] = 0xFFFFFFF0; 40949ab747fSPaolo Bonzini s->regs_ro[GEM_ISR] = 0xFFFFFFFF; 41049ab747fSPaolo Bonzini s->regs_ro[GEM_IMR] = 0xFFFFFFFF; 41149ab747fSPaolo Bonzini s->regs_ro[GEM_MODID] = 0xFFFFFFFF; 41249ab747fSPaolo Bonzini 41349ab747fSPaolo Bonzini /* Mask of register bits which are clear on read */ 41449ab747fSPaolo Bonzini memset(&s->regs_rtc[0], 0, sizeof(s->regs_rtc)); 41549ab747fSPaolo Bonzini s->regs_rtc[GEM_ISR] = 0xFFFFFFFF; 41649ab747fSPaolo Bonzini 41749ab747fSPaolo Bonzini /* Mask of register bits which are write 1 to clear */ 41849ab747fSPaolo Bonzini memset(&s->regs_w1c[0], 0, sizeof(s->regs_w1c)); 41949ab747fSPaolo Bonzini s->regs_w1c[GEM_TXSTATUS] = 0x000001F7; 42049ab747fSPaolo Bonzini s->regs_w1c[GEM_RXSTATUS] = 0x0000000F; 42149ab747fSPaolo Bonzini 42249ab747fSPaolo Bonzini /* Mask of register bits which are write only */ 42349ab747fSPaolo Bonzini memset(&s->regs_wo[0], 0, sizeof(s->regs_wo)); 42449ab747fSPaolo Bonzini s->regs_wo[GEM_NWCTRL] = 0x00073E60; 42549ab747fSPaolo Bonzini s->regs_wo[GEM_IER] = 0x07FFFFFF; 42649ab747fSPaolo Bonzini s->regs_wo[GEM_IDR] = 0x07FFFFFF; 42749ab747fSPaolo Bonzini } 42849ab747fSPaolo Bonzini 42949ab747fSPaolo Bonzini /* 43049ab747fSPaolo Bonzini * phy_update_link: 43149ab747fSPaolo Bonzini * Make the emulated PHY link state match the QEMU "interface" state. 43249ab747fSPaolo Bonzini */ 43349ab747fSPaolo Bonzini static void phy_update_link(GemState *s) 43449ab747fSPaolo Bonzini { 43549ab747fSPaolo Bonzini DB_PRINT("down %d\n", qemu_get_queue(s->nic)->link_down); 43649ab747fSPaolo Bonzini 43749ab747fSPaolo Bonzini /* Autonegotiation status mirrors link status. */ 43849ab747fSPaolo Bonzini if (qemu_get_queue(s->nic)->link_down) { 43949ab747fSPaolo Bonzini s->phy_regs[PHY_REG_STATUS] &= ~(PHY_REG_STATUS_ANEGCMPL | 44049ab747fSPaolo Bonzini PHY_REG_STATUS_LINK); 44149ab747fSPaolo Bonzini s->phy_regs[PHY_REG_INT_ST] |= PHY_REG_INT_ST_LINKC; 44249ab747fSPaolo Bonzini } else { 44349ab747fSPaolo Bonzini s->phy_regs[PHY_REG_STATUS] |= (PHY_REG_STATUS_ANEGCMPL | 44449ab747fSPaolo Bonzini PHY_REG_STATUS_LINK); 44549ab747fSPaolo Bonzini s->phy_regs[PHY_REG_INT_ST] |= (PHY_REG_INT_ST_LINKC | 44649ab747fSPaolo Bonzini PHY_REG_INT_ST_ANEGCMPL | 44749ab747fSPaolo Bonzini PHY_REG_INT_ST_ENERGY); 44849ab747fSPaolo Bonzini } 44949ab747fSPaolo Bonzini } 45049ab747fSPaolo Bonzini 45149ab747fSPaolo Bonzini static int gem_can_receive(NetClientState *nc) 45249ab747fSPaolo Bonzini { 45349ab747fSPaolo Bonzini GemState *s; 45449ab747fSPaolo Bonzini 45549ab747fSPaolo Bonzini s = qemu_get_nic_opaque(nc); 45649ab747fSPaolo Bonzini 45749ab747fSPaolo Bonzini /* Do nothing if receive is not enabled. */ 45849ab747fSPaolo Bonzini if (!(s->regs[GEM_NWCTRL] & GEM_NWCTRL_RXENA)) { 4593ae5725fSPeter Crosthwaite if (s->can_rx_state != 1) { 4603ae5725fSPeter Crosthwaite s->can_rx_state = 1; 4613ae5725fSPeter Crosthwaite DB_PRINT("can't receive - no enable\n"); 4623ae5725fSPeter Crosthwaite } 46349ab747fSPaolo Bonzini return 0; 46449ab747fSPaolo Bonzini } 46549ab747fSPaolo Bonzini 4668202aa53SPeter Crosthwaite if (rx_desc_get_ownership(s->rx_desc) == 1) { 4678202aa53SPeter Crosthwaite if (s->can_rx_state != 2) { 4688202aa53SPeter Crosthwaite s->can_rx_state = 2; 4698202aa53SPeter Crosthwaite DB_PRINT("can't receive - busy buffer descriptor 0x%x\n", 4708202aa53SPeter Crosthwaite s->rx_desc_addr); 4718202aa53SPeter Crosthwaite } 4728202aa53SPeter Crosthwaite return 0; 4738202aa53SPeter Crosthwaite } 4748202aa53SPeter Crosthwaite 4753ae5725fSPeter Crosthwaite if (s->can_rx_state != 0) { 4763ae5725fSPeter Crosthwaite s->can_rx_state = 0; 4773ae5725fSPeter Crosthwaite DB_PRINT("can receive 0x%x\n", s->rx_desc_addr); 4783ae5725fSPeter Crosthwaite } 47949ab747fSPaolo Bonzini return 1; 48049ab747fSPaolo Bonzini } 48149ab747fSPaolo Bonzini 48249ab747fSPaolo Bonzini /* 48349ab747fSPaolo Bonzini * gem_update_int_status: 48449ab747fSPaolo Bonzini * Raise or lower interrupt based on current status. 48549ab747fSPaolo Bonzini */ 48649ab747fSPaolo Bonzini static void gem_update_int_status(GemState *s) 48749ab747fSPaolo Bonzini { 48849ab747fSPaolo Bonzini if (s->regs[GEM_ISR]) { 48949ab747fSPaolo Bonzini DB_PRINT("asserting int. (0x%08x)\n", s->regs[GEM_ISR]); 49049ab747fSPaolo Bonzini qemu_set_irq(s->irq, 1); 49149ab747fSPaolo Bonzini } 49249ab747fSPaolo Bonzini } 49349ab747fSPaolo Bonzini 49449ab747fSPaolo Bonzini /* 49549ab747fSPaolo Bonzini * gem_receive_updatestats: 49649ab747fSPaolo Bonzini * Increment receive statistics. 49749ab747fSPaolo Bonzini */ 49849ab747fSPaolo Bonzini static void gem_receive_updatestats(GemState *s, const uint8_t *packet, 49949ab747fSPaolo Bonzini unsigned bytes) 50049ab747fSPaolo Bonzini { 50149ab747fSPaolo Bonzini uint64_t octets; 50249ab747fSPaolo Bonzini 50349ab747fSPaolo Bonzini /* Total octets (bytes) received */ 50449ab747fSPaolo Bonzini octets = ((uint64_t)(s->regs[GEM_OCTRXLO]) << 32) | 50549ab747fSPaolo Bonzini s->regs[GEM_OCTRXHI]; 50649ab747fSPaolo Bonzini octets += bytes; 50749ab747fSPaolo Bonzini s->regs[GEM_OCTRXLO] = octets >> 32; 50849ab747fSPaolo Bonzini s->regs[GEM_OCTRXHI] = octets; 50949ab747fSPaolo Bonzini 51049ab747fSPaolo Bonzini /* Error-free Frames received */ 51149ab747fSPaolo Bonzini s->regs[GEM_RXCNT]++; 51249ab747fSPaolo Bonzini 51349ab747fSPaolo Bonzini /* Error-free Broadcast Frames counter */ 51449ab747fSPaolo Bonzini if (!memcmp(packet, broadcast_addr, 6)) { 51549ab747fSPaolo Bonzini s->regs[GEM_RXBROADCNT]++; 51649ab747fSPaolo Bonzini } 51749ab747fSPaolo Bonzini 51849ab747fSPaolo Bonzini /* Error-free Multicast Frames counter */ 51949ab747fSPaolo Bonzini if (packet[0] == 0x01) { 52049ab747fSPaolo Bonzini s->regs[GEM_RXMULTICNT]++; 52149ab747fSPaolo Bonzini } 52249ab747fSPaolo Bonzini 52349ab747fSPaolo Bonzini if (bytes <= 64) { 52449ab747fSPaolo Bonzini s->regs[GEM_RX64CNT]++; 52549ab747fSPaolo Bonzini } else if (bytes <= 127) { 52649ab747fSPaolo Bonzini s->regs[GEM_RX65CNT]++; 52749ab747fSPaolo Bonzini } else if (bytes <= 255) { 52849ab747fSPaolo Bonzini s->regs[GEM_RX128CNT]++; 52949ab747fSPaolo Bonzini } else if (bytes <= 511) { 53049ab747fSPaolo Bonzini s->regs[GEM_RX256CNT]++; 53149ab747fSPaolo Bonzini } else if (bytes <= 1023) { 53249ab747fSPaolo Bonzini s->regs[GEM_RX512CNT]++; 53349ab747fSPaolo Bonzini } else if (bytes <= 1518) { 53449ab747fSPaolo Bonzini s->regs[GEM_RX1024CNT]++; 53549ab747fSPaolo Bonzini } else { 53649ab747fSPaolo Bonzini s->regs[GEM_RX1519CNT]++; 53749ab747fSPaolo Bonzini } 53849ab747fSPaolo Bonzini } 53949ab747fSPaolo Bonzini 54049ab747fSPaolo Bonzini /* 54149ab747fSPaolo Bonzini * Get the MAC Address bit from the specified position 54249ab747fSPaolo Bonzini */ 54349ab747fSPaolo Bonzini static unsigned get_bit(const uint8_t *mac, unsigned bit) 54449ab747fSPaolo Bonzini { 54549ab747fSPaolo Bonzini unsigned byte; 54649ab747fSPaolo Bonzini 54749ab747fSPaolo Bonzini byte = mac[bit / 8]; 54849ab747fSPaolo Bonzini byte >>= (bit & 0x7); 54949ab747fSPaolo Bonzini byte &= 1; 55049ab747fSPaolo Bonzini 55149ab747fSPaolo Bonzini return byte; 55249ab747fSPaolo Bonzini } 55349ab747fSPaolo Bonzini 55449ab747fSPaolo Bonzini /* 55549ab747fSPaolo Bonzini * Calculate a GEM MAC Address hash index 55649ab747fSPaolo Bonzini */ 55749ab747fSPaolo Bonzini static unsigned calc_mac_hash(const uint8_t *mac) 55849ab747fSPaolo Bonzini { 55949ab747fSPaolo Bonzini int index_bit, mac_bit; 56049ab747fSPaolo Bonzini unsigned hash_index; 56149ab747fSPaolo Bonzini 56249ab747fSPaolo Bonzini hash_index = 0; 56349ab747fSPaolo Bonzini mac_bit = 5; 56449ab747fSPaolo Bonzini for (index_bit = 5; index_bit >= 0; index_bit--) { 56549ab747fSPaolo Bonzini hash_index |= (get_bit(mac, mac_bit) ^ 56649ab747fSPaolo Bonzini get_bit(mac, mac_bit + 6) ^ 56749ab747fSPaolo Bonzini get_bit(mac, mac_bit + 12) ^ 56849ab747fSPaolo Bonzini get_bit(mac, mac_bit + 18) ^ 56949ab747fSPaolo Bonzini get_bit(mac, mac_bit + 24) ^ 57049ab747fSPaolo Bonzini get_bit(mac, mac_bit + 30) ^ 57149ab747fSPaolo Bonzini get_bit(mac, mac_bit + 36) ^ 57249ab747fSPaolo Bonzini get_bit(mac, mac_bit + 42)) << index_bit; 57349ab747fSPaolo Bonzini mac_bit--; 57449ab747fSPaolo Bonzini } 57549ab747fSPaolo Bonzini 57649ab747fSPaolo Bonzini return hash_index; 57749ab747fSPaolo Bonzini } 57849ab747fSPaolo Bonzini 57949ab747fSPaolo Bonzini /* 58049ab747fSPaolo Bonzini * gem_mac_address_filter: 58149ab747fSPaolo Bonzini * Accept or reject this destination address? 58249ab747fSPaolo Bonzini * Returns: 58349ab747fSPaolo Bonzini * GEM_RX_REJECT: reject 58463af1e0cSPeter Crosthwaite * >= 0: Specific address accept (which matched SAR is returned) 58563af1e0cSPeter Crosthwaite * others for various other modes of accept: 58663af1e0cSPeter Crosthwaite * GEM_RM_PROMISCUOUS_ACCEPT, GEM_RX_BROADCAST_ACCEPT, 58763af1e0cSPeter Crosthwaite * GEM_RX_MULTICAST_HASH_ACCEPT or GEM_RX_UNICAST_HASH_ACCEPT 58849ab747fSPaolo Bonzini */ 58949ab747fSPaolo Bonzini static int gem_mac_address_filter(GemState *s, const uint8_t *packet) 59049ab747fSPaolo Bonzini { 59149ab747fSPaolo Bonzini uint8_t *gem_spaddr; 59249ab747fSPaolo Bonzini int i; 59349ab747fSPaolo Bonzini 59449ab747fSPaolo Bonzini /* Promiscuous mode? */ 59549ab747fSPaolo Bonzini if (s->regs[GEM_NWCFG] & GEM_NWCFG_PROMISC) { 59663af1e0cSPeter Crosthwaite return GEM_RX_PROMISCUOUS_ACCEPT; 59749ab747fSPaolo Bonzini } 59849ab747fSPaolo Bonzini 59949ab747fSPaolo Bonzini if (!memcmp(packet, broadcast_addr, 6)) { 60049ab747fSPaolo Bonzini /* Reject broadcast packets? */ 60149ab747fSPaolo Bonzini if (s->regs[GEM_NWCFG] & GEM_NWCFG_BCAST_REJ) { 60249ab747fSPaolo Bonzini return GEM_RX_REJECT; 60349ab747fSPaolo Bonzini } 60463af1e0cSPeter Crosthwaite return GEM_RX_BROADCAST_ACCEPT; 60549ab747fSPaolo Bonzini } 60649ab747fSPaolo Bonzini 60749ab747fSPaolo Bonzini /* Accept packets -w- hash match? */ 60849ab747fSPaolo Bonzini if ((packet[0] == 0x01 && (s->regs[GEM_NWCFG] & GEM_NWCFG_MCAST_HASH)) || 60949ab747fSPaolo Bonzini (packet[0] != 0x01 && (s->regs[GEM_NWCFG] & GEM_NWCFG_UCAST_HASH))) { 61049ab747fSPaolo Bonzini unsigned hash_index; 61149ab747fSPaolo Bonzini 61249ab747fSPaolo Bonzini hash_index = calc_mac_hash(packet); 61349ab747fSPaolo Bonzini if (hash_index < 32) { 61449ab747fSPaolo Bonzini if (s->regs[GEM_HASHLO] & (1<<hash_index)) { 61563af1e0cSPeter Crosthwaite return packet[0] == 0x01 ? GEM_RX_MULTICAST_HASH_ACCEPT : 61663af1e0cSPeter Crosthwaite GEM_RX_UNICAST_HASH_ACCEPT; 61749ab747fSPaolo Bonzini } 61849ab747fSPaolo Bonzini } else { 61949ab747fSPaolo Bonzini hash_index -= 32; 62049ab747fSPaolo Bonzini if (s->regs[GEM_HASHHI] & (1<<hash_index)) { 62163af1e0cSPeter Crosthwaite return packet[0] == 0x01 ? GEM_RX_MULTICAST_HASH_ACCEPT : 62263af1e0cSPeter Crosthwaite GEM_RX_UNICAST_HASH_ACCEPT; 62349ab747fSPaolo Bonzini } 62449ab747fSPaolo Bonzini } 62549ab747fSPaolo Bonzini } 62649ab747fSPaolo Bonzini 62749ab747fSPaolo Bonzini /* Check all 4 specific addresses */ 62849ab747fSPaolo Bonzini gem_spaddr = (uint8_t *)&(s->regs[GEM_SPADDR1LO]); 62963af1e0cSPeter Crosthwaite for (i = 3; i >= 0; i--) { 63064eb9301SPeter Crosthwaite if (s->sar_active[i] && !memcmp(packet, gem_spaddr + 8 * i, 6)) { 63163af1e0cSPeter Crosthwaite return GEM_RX_SAR_ACCEPT + i; 63249ab747fSPaolo Bonzini } 63349ab747fSPaolo Bonzini } 63449ab747fSPaolo Bonzini 63549ab747fSPaolo Bonzini /* No address match; reject the packet */ 63649ab747fSPaolo Bonzini return GEM_RX_REJECT; 63749ab747fSPaolo Bonzini } 63849ab747fSPaolo Bonzini 63906c2fe95SPeter Crosthwaite static void gem_get_rx_desc(GemState *s) 64006c2fe95SPeter Crosthwaite { 64106c2fe95SPeter Crosthwaite DB_PRINT("read descriptor 0x%x\n", (unsigned)s->rx_desc_addr); 64206c2fe95SPeter Crosthwaite /* read current descriptor */ 64306c2fe95SPeter Crosthwaite cpu_physical_memory_read(s->rx_desc_addr, 64406c2fe95SPeter Crosthwaite (uint8_t *)s->rx_desc, sizeof(s->rx_desc)); 64506c2fe95SPeter Crosthwaite 64606c2fe95SPeter Crosthwaite /* Descriptor owned by software ? */ 64706c2fe95SPeter Crosthwaite if (rx_desc_get_ownership(s->rx_desc) == 1) { 64806c2fe95SPeter Crosthwaite DB_PRINT("descriptor 0x%x owned by sw.\n", 64906c2fe95SPeter Crosthwaite (unsigned)s->rx_desc_addr); 65006c2fe95SPeter Crosthwaite s->regs[GEM_RXSTATUS] |= GEM_RXSTATUS_NOBUF; 65106c2fe95SPeter Crosthwaite s->regs[GEM_ISR] |= GEM_INT_RXUSED & ~(s->regs[GEM_IMR]); 65206c2fe95SPeter Crosthwaite /* Handle interrupt consequences */ 65306c2fe95SPeter Crosthwaite gem_update_int_status(s); 65406c2fe95SPeter Crosthwaite } 65506c2fe95SPeter Crosthwaite } 65606c2fe95SPeter Crosthwaite 65749ab747fSPaolo Bonzini /* 65849ab747fSPaolo Bonzini * gem_receive: 65949ab747fSPaolo Bonzini * Fit a packet handed to us by QEMU into the receive descriptor ring. 66049ab747fSPaolo Bonzini */ 66149ab747fSPaolo Bonzini static ssize_t gem_receive(NetClientState *nc, const uint8_t *buf, size_t size) 66249ab747fSPaolo Bonzini { 66349ab747fSPaolo Bonzini GemState *s; 66449ab747fSPaolo Bonzini unsigned rxbufsize, bytes_to_copy; 66549ab747fSPaolo Bonzini unsigned rxbuf_offset; 66649ab747fSPaolo Bonzini uint8_t rxbuf[2048]; 66749ab747fSPaolo Bonzini uint8_t *rxbuf_ptr; 6683b2c97f9SEdgar E. Iglesias bool first_desc = true; 66963af1e0cSPeter Crosthwaite int maf; 67049ab747fSPaolo Bonzini 67149ab747fSPaolo Bonzini s = qemu_get_nic_opaque(nc); 67249ab747fSPaolo Bonzini 67349ab747fSPaolo Bonzini /* Is this destination MAC address "for us" ? */ 67463af1e0cSPeter Crosthwaite maf = gem_mac_address_filter(s, buf); 67563af1e0cSPeter Crosthwaite if (maf == GEM_RX_REJECT) { 67649ab747fSPaolo Bonzini return -1; 67749ab747fSPaolo Bonzini } 67849ab747fSPaolo Bonzini 67949ab747fSPaolo Bonzini /* Discard packets with receive length error enabled ? */ 68049ab747fSPaolo Bonzini if (s->regs[GEM_NWCFG] & GEM_NWCFG_LERR_DISC) { 68149ab747fSPaolo Bonzini unsigned type_len; 68249ab747fSPaolo Bonzini 68349ab747fSPaolo Bonzini /* Fish the ethertype / length field out of the RX packet */ 68449ab747fSPaolo Bonzini type_len = buf[12] << 8 | buf[13]; 68549ab747fSPaolo Bonzini /* It is a length field, not an ethertype */ 68649ab747fSPaolo Bonzini if (type_len < 0x600) { 68749ab747fSPaolo Bonzini if (size < type_len) { 68849ab747fSPaolo Bonzini /* discard */ 68949ab747fSPaolo Bonzini return -1; 69049ab747fSPaolo Bonzini } 69149ab747fSPaolo Bonzini } 69249ab747fSPaolo Bonzini } 69349ab747fSPaolo Bonzini 69449ab747fSPaolo Bonzini /* 69549ab747fSPaolo Bonzini * Determine configured receive buffer offset (probably 0) 69649ab747fSPaolo Bonzini */ 69749ab747fSPaolo Bonzini rxbuf_offset = (s->regs[GEM_NWCFG] & GEM_NWCFG_BUFF_OFST_M) >> 69849ab747fSPaolo Bonzini GEM_NWCFG_BUFF_OFST_S; 69949ab747fSPaolo Bonzini 70049ab747fSPaolo Bonzini /* The configure size of each receive buffer. Determines how many 70149ab747fSPaolo Bonzini * buffers needed to hold this packet. 70249ab747fSPaolo Bonzini */ 70349ab747fSPaolo Bonzini rxbufsize = ((s->regs[GEM_DMACFG] & GEM_DMACFG_RBUFSZ_M) >> 70449ab747fSPaolo Bonzini GEM_DMACFG_RBUFSZ_S) * GEM_DMACFG_RBUFSZ_MUL; 70549ab747fSPaolo Bonzini bytes_to_copy = size; 70649ab747fSPaolo Bonzini 707191946c5SPeter Crosthwaite /* Pad to minimum length. Assume FCS field is stripped, logic 708191946c5SPeter Crosthwaite * below will increment it to the real minimum of 64 when 709191946c5SPeter Crosthwaite * not FCS stripping 710191946c5SPeter Crosthwaite */ 711191946c5SPeter Crosthwaite if (size < 60) { 712191946c5SPeter Crosthwaite size = 60; 713191946c5SPeter Crosthwaite } 714191946c5SPeter Crosthwaite 71549ab747fSPaolo Bonzini /* Strip of FCS field ? (usually yes) */ 71649ab747fSPaolo Bonzini if (s->regs[GEM_NWCFG] & GEM_NWCFG_STRIP_FCS) { 71749ab747fSPaolo Bonzini rxbuf_ptr = (void *)buf; 71849ab747fSPaolo Bonzini } else { 71949ab747fSPaolo Bonzini unsigned crc_val; 72049ab747fSPaolo Bonzini 72149ab747fSPaolo Bonzini /* The application wants the FCS field, which QEMU does not provide. 72249ab747fSPaolo Bonzini * We must try and caclculate one. 72349ab747fSPaolo Bonzini */ 72449ab747fSPaolo Bonzini 72549ab747fSPaolo Bonzini memcpy(rxbuf, buf, size); 72649ab747fSPaolo Bonzini memset(rxbuf + size, 0, sizeof(rxbuf) - size); 72749ab747fSPaolo Bonzini rxbuf_ptr = rxbuf; 72849ab747fSPaolo Bonzini crc_val = cpu_to_le32(crc32(0, rxbuf, MAX(size, 60))); 729c94239feSPeter Maydell memcpy(rxbuf + size, &crc_val, sizeof(crc_val)); 73049ab747fSPaolo Bonzini 73149ab747fSPaolo Bonzini bytes_to_copy += 4; 73249ab747fSPaolo Bonzini size += 4; 73349ab747fSPaolo Bonzini } 73449ab747fSPaolo Bonzini 73549ab747fSPaolo Bonzini DB_PRINT("config bufsize: %d packet size: %ld\n", rxbufsize, size); 73649ab747fSPaolo Bonzini 7377cfd65e4SPeter Crosthwaite while (bytes_to_copy) { 73806c2fe95SPeter Crosthwaite /* Do nothing if receive is not enabled. */ 73906c2fe95SPeter Crosthwaite if (!gem_can_receive(nc)) { 74006c2fe95SPeter Crosthwaite assert(!first_desc); 74149ab747fSPaolo Bonzini return -1; 74249ab747fSPaolo Bonzini } 74349ab747fSPaolo Bonzini 74449ab747fSPaolo Bonzini DB_PRINT("copy %d bytes to 0x%x\n", MIN(bytes_to_copy, rxbufsize), 74506c2fe95SPeter Crosthwaite rx_desc_get_buffer(s->rx_desc)); 74649ab747fSPaolo Bonzini 74749ab747fSPaolo Bonzini /* Copy packet data to emulated DMA buffer */ 74806c2fe95SPeter Crosthwaite cpu_physical_memory_write(rx_desc_get_buffer(s->rx_desc) + rxbuf_offset, 74949ab747fSPaolo Bonzini rxbuf_ptr, MIN(bytes_to_copy, rxbufsize)); 75049ab747fSPaolo Bonzini rxbuf_ptr += MIN(bytes_to_copy, rxbufsize); 75130570698SPeter Crosthwaite bytes_to_copy -= MIN(bytes_to_copy, rxbufsize); 7523b2c97f9SEdgar E. Iglesias 7533b2c97f9SEdgar E. Iglesias /* Update the descriptor. */ 7543b2c97f9SEdgar E. Iglesias if (first_desc) { 75506c2fe95SPeter Crosthwaite rx_desc_set_sof(s->rx_desc); 7563b2c97f9SEdgar E. Iglesias first_desc = false; 7573b2c97f9SEdgar E. Iglesias } 7583b2c97f9SEdgar E. Iglesias if (bytes_to_copy == 0) { 75906c2fe95SPeter Crosthwaite rx_desc_set_eof(s->rx_desc); 76006c2fe95SPeter Crosthwaite rx_desc_set_length(s->rx_desc, size); 7613b2c97f9SEdgar E. Iglesias } 76206c2fe95SPeter Crosthwaite rx_desc_set_ownership(s->rx_desc); 76363af1e0cSPeter Crosthwaite 76463af1e0cSPeter Crosthwaite switch (maf) { 76563af1e0cSPeter Crosthwaite case GEM_RX_PROMISCUOUS_ACCEPT: 76663af1e0cSPeter Crosthwaite break; 76763af1e0cSPeter Crosthwaite case GEM_RX_BROADCAST_ACCEPT: 76863af1e0cSPeter Crosthwaite rx_desc_set_broadcast(s->rx_desc); 76963af1e0cSPeter Crosthwaite break; 77063af1e0cSPeter Crosthwaite case GEM_RX_UNICAST_HASH_ACCEPT: 77163af1e0cSPeter Crosthwaite rx_desc_set_unicast_hash(s->rx_desc); 77263af1e0cSPeter Crosthwaite break; 77363af1e0cSPeter Crosthwaite case GEM_RX_MULTICAST_HASH_ACCEPT: 77463af1e0cSPeter Crosthwaite rx_desc_set_multicast_hash(s->rx_desc); 77563af1e0cSPeter Crosthwaite break; 77663af1e0cSPeter Crosthwaite case GEM_RX_REJECT: 77763af1e0cSPeter Crosthwaite abort(); 77863af1e0cSPeter Crosthwaite default: /* SAR */ 77963af1e0cSPeter Crosthwaite rx_desc_set_sar(s->rx_desc, maf); 78063af1e0cSPeter Crosthwaite } 78163af1e0cSPeter Crosthwaite 7823b2c97f9SEdgar E. Iglesias /* Descriptor write-back. */ 7837cfd65e4SPeter Crosthwaite cpu_physical_memory_write(s->rx_desc_addr, 78406c2fe95SPeter Crosthwaite (uint8_t *)s->rx_desc, sizeof(s->rx_desc)); 7853b2c97f9SEdgar E. Iglesias 78649ab747fSPaolo Bonzini /* Next descriptor */ 78706c2fe95SPeter Crosthwaite if (rx_desc_get_wrap(s->rx_desc)) { 78849ab747fSPaolo Bonzini DB_PRINT("wrapping RX descriptor list\n"); 7897cfd65e4SPeter Crosthwaite s->rx_desc_addr = s->regs[GEM_RXQBASE]; 79049ab747fSPaolo Bonzini } else { 79149ab747fSPaolo Bonzini DB_PRINT("incrementing RX descriptor list\n"); 79249ab747fSPaolo Bonzini s->rx_desc_addr += 8; 79349ab747fSPaolo Bonzini } 79406c2fe95SPeter Crosthwaite gem_get_rx_desc(s); 7957cfd65e4SPeter Crosthwaite } 79649ab747fSPaolo Bonzini 79749ab747fSPaolo Bonzini /* Count it */ 79849ab747fSPaolo Bonzini gem_receive_updatestats(s, buf, size); 79949ab747fSPaolo Bonzini 80049ab747fSPaolo Bonzini s->regs[GEM_RXSTATUS] |= GEM_RXSTATUS_FRMRCVD; 80149ab747fSPaolo Bonzini s->regs[GEM_ISR] |= GEM_INT_RXCMPL & ~(s->regs[GEM_IMR]); 80249ab747fSPaolo Bonzini 80349ab747fSPaolo Bonzini /* Handle interrupt consequences */ 80449ab747fSPaolo Bonzini gem_update_int_status(s); 80549ab747fSPaolo Bonzini 80649ab747fSPaolo Bonzini return size; 80749ab747fSPaolo Bonzini } 80849ab747fSPaolo Bonzini 80949ab747fSPaolo Bonzini /* 81049ab747fSPaolo Bonzini * gem_transmit_updatestats: 81149ab747fSPaolo Bonzini * Increment transmit statistics. 81249ab747fSPaolo Bonzini */ 81349ab747fSPaolo Bonzini static void gem_transmit_updatestats(GemState *s, const uint8_t *packet, 81449ab747fSPaolo Bonzini unsigned bytes) 81549ab747fSPaolo Bonzini { 81649ab747fSPaolo Bonzini uint64_t octets; 81749ab747fSPaolo Bonzini 81849ab747fSPaolo Bonzini /* Total octets (bytes) transmitted */ 81949ab747fSPaolo Bonzini octets = ((uint64_t)(s->regs[GEM_OCTTXLO]) << 32) | 82049ab747fSPaolo Bonzini s->regs[GEM_OCTTXHI]; 82149ab747fSPaolo Bonzini octets += bytes; 82249ab747fSPaolo Bonzini s->regs[GEM_OCTTXLO] = octets >> 32; 82349ab747fSPaolo Bonzini s->regs[GEM_OCTTXHI] = octets; 82449ab747fSPaolo Bonzini 82549ab747fSPaolo Bonzini /* Error-free Frames transmitted */ 82649ab747fSPaolo Bonzini s->regs[GEM_TXCNT]++; 82749ab747fSPaolo Bonzini 82849ab747fSPaolo Bonzini /* Error-free Broadcast Frames counter */ 82949ab747fSPaolo Bonzini if (!memcmp(packet, broadcast_addr, 6)) { 83049ab747fSPaolo Bonzini s->regs[GEM_TXBCNT]++; 83149ab747fSPaolo Bonzini } 83249ab747fSPaolo Bonzini 83349ab747fSPaolo Bonzini /* Error-free Multicast Frames counter */ 83449ab747fSPaolo Bonzini if (packet[0] == 0x01) { 83549ab747fSPaolo Bonzini s->regs[GEM_TXMCNT]++; 83649ab747fSPaolo Bonzini } 83749ab747fSPaolo Bonzini 83849ab747fSPaolo Bonzini if (bytes <= 64) { 83949ab747fSPaolo Bonzini s->regs[GEM_TX64CNT]++; 84049ab747fSPaolo Bonzini } else if (bytes <= 127) { 84149ab747fSPaolo Bonzini s->regs[GEM_TX65CNT]++; 84249ab747fSPaolo Bonzini } else if (bytes <= 255) { 84349ab747fSPaolo Bonzini s->regs[GEM_TX128CNT]++; 84449ab747fSPaolo Bonzini } else if (bytes <= 511) { 84549ab747fSPaolo Bonzini s->regs[GEM_TX256CNT]++; 84649ab747fSPaolo Bonzini } else if (bytes <= 1023) { 84749ab747fSPaolo Bonzini s->regs[GEM_TX512CNT]++; 84849ab747fSPaolo Bonzini } else if (bytes <= 1518) { 84949ab747fSPaolo Bonzini s->regs[GEM_TX1024CNT]++; 85049ab747fSPaolo Bonzini } else { 85149ab747fSPaolo Bonzini s->regs[GEM_TX1519CNT]++; 85249ab747fSPaolo Bonzini } 85349ab747fSPaolo Bonzini } 85449ab747fSPaolo Bonzini 85549ab747fSPaolo Bonzini /* 85649ab747fSPaolo Bonzini * gem_transmit: 85749ab747fSPaolo Bonzini * Fish packets out of the descriptor ring and feed them to QEMU 85849ab747fSPaolo Bonzini */ 85949ab747fSPaolo Bonzini static void gem_transmit(GemState *s) 86049ab747fSPaolo Bonzini { 86149ab747fSPaolo Bonzini unsigned desc[2]; 86249ab747fSPaolo Bonzini hwaddr packet_desc_addr; 86349ab747fSPaolo Bonzini uint8_t tx_packet[2048]; 86449ab747fSPaolo Bonzini uint8_t *p; 86549ab747fSPaolo Bonzini unsigned total_bytes; 86649ab747fSPaolo Bonzini 86749ab747fSPaolo Bonzini /* Do nothing if transmit is not enabled. */ 86849ab747fSPaolo Bonzini if (!(s->regs[GEM_NWCTRL] & GEM_NWCTRL_TXENA)) { 86949ab747fSPaolo Bonzini return; 87049ab747fSPaolo Bonzini } 87149ab747fSPaolo Bonzini 87249ab747fSPaolo Bonzini DB_PRINT("\n"); 87349ab747fSPaolo Bonzini 87449ab747fSPaolo Bonzini /* The packet we will hand off to qemu. 87549ab747fSPaolo Bonzini * Packets scattered across multiple descriptors are gathered to this 87649ab747fSPaolo Bonzini * one contiguous buffer first. 87749ab747fSPaolo Bonzini */ 87849ab747fSPaolo Bonzini p = tx_packet; 87949ab747fSPaolo Bonzini total_bytes = 0; 88049ab747fSPaolo Bonzini 88149ab747fSPaolo Bonzini /* read current descriptor */ 88249ab747fSPaolo Bonzini packet_desc_addr = s->tx_desc_addr; 88349ab747fSPaolo Bonzini cpu_physical_memory_read(packet_desc_addr, 88449ab747fSPaolo Bonzini (uint8_t *)&desc[0], sizeof(desc)); 88549ab747fSPaolo Bonzini /* Handle all descriptors owned by hardware */ 88649ab747fSPaolo Bonzini while (tx_desc_get_used(desc) == 0) { 88749ab747fSPaolo Bonzini 88849ab747fSPaolo Bonzini /* Do nothing if transmit is not enabled. */ 88949ab747fSPaolo Bonzini if (!(s->regs[GEM_NWCTRL] & GEM_NWCTRL_TXENA)) { 89049ab747fSPaolo Bonzini return; 89149ab747fSPaolo Bonzini } 89249ab747fSPaolo Bonzini print_gem_tx_desc(desc); 89349ab747fSPaolo Bonzini 89449ab747fSPaolo Bonzini /* The real hardware would eat this (and possibly crash). 89549ab747fSPaolo Bonzini * For QEMU let's lend a helping hand. 89649ab747fSPaolo Bonzini */ 89749ab747fSPaolo Bonzini if ((tx_desc_get_buffer(desc) == 0) || 89849ab747fSPaolo Bonzini (tx_desc_get_length(desc) == 0)) { 89949ab747fSPaolo Bonzini DB_PRINT("Invalid TX descriptor @ 0x%x\n", 90049ab747fSPaolo Bonzini (unsigned)packet_desc_addr); 90149ab747fSPaolo Bonzini break; 90249ab747fSPaolo Bonzini } 90349ab747fSPaolo Bonzini 90449ab747fSPaolo Bonzini /* Gather this fragment of the packet from "dma memory" to our contig. 90549ab747fSPaolo Bonzini * buffer. 90649ab747fSPaolo Bonzini */ 90749ab747fSPaolo Bonzini cpu_physical_memory_read(tx_desc_get_buffer(desc), p, 90849ab747fSPaolo Bonzini tx_desc_get_length(desc)); 90949ab747fSPaolo Bonzini p += tx_desc_get_length(desc); 91049ab747fSPaolo Bonzini total_bytes += tx_desc_get_length(desc); 91149ab747fSPaolo Bonzini 91249ab747fSPaolo Bonzini /* Last descriptor for this packet; hand the whole thing off */ 91349ab747fSPaolo Bonzini if (tx_desc_get_last(desc)) { 91449ab747fSPaolo Bonzini /* Modify the 1st descriptor of this packet to be owned by 91549ab747fSPaolo Bonzini * the processor. 91649ab747fSPaolo Bonzini */ 91749ab747fSPaolo Bonzini cpu_physical_memory_read(s->tx_desc_addr, 91849ab747fSPaolo Bonzini (uint8_t *)&desc[0], sizeof(desc)); 91949ab747fSPaolo Bonzini tx_desc_set_used(desc); 92049ab747fSPaolo Bonzini cpu_physical_memory_write(s->tx_desc_addr, 92149ab747fSPaolo Bonzini (uint8_t *)&desc[0], sizeof(desc)); 92249ab747fSPaolo Bonzini /* Advance the hardare current descriptor past this packet */ 92349ab747fSPaolo Bonzini if (tx_desc_get_wrap(desc)) { 92449ab747fSPaolo Bonzini s->tx_desc_addr = s->regs[GEM_TXQBASE]; 92549ab747fSPaolo Bonzini } else { 92649ab747fSPaolo Bonzini s->tx_desc_addr = packet_desc_addr + 8; 92749ab747fSPaolo Bonzini } 92849ab747fSPaolo Bonzini DB_PRINT("TX descriptor next: 0x%08x\n", s->tx_desc_addr); 92949ab747fSPaolo Bonzini 93049ab747fSPaolo Bonzini s->regs[GEM_TXSTATUS] |= GEM_TXSTATUS_TXCMPL; 93149ab747fSPaolo Bonzini s->regs[GEM_ISR] |= GEM_INT_TXCMPL & ~(s->regs[GEM_IMR]); 93249ab747fSPaolo Bonzini 93349ab747fSPaolo Bonzini /* Handle interrupt consequences */ 93449ab747fSPaolo Bonzini gem_update_int_status(s); 93549ab747fSPaolo Bonzini 93649ab747fSPaolo Bonzini /* Is checksum offload enabled? */ 93749ab747fSPaolo Bonzini if (s->regs[GEM_DMACFG] & GEM_DMACFG_TXCSUM_OFFL) { 93849ab747fSPaolo Bonzini net_checksum_calculate(tx_packet, total_bytes); 93949ab747fSPaolo Bonzini } 94049ab747fSPaolo Bonzini 94149ab747fSPaolo Bonzini /* Update MAC statistics */ 94249ab747fSPaolo Bonzini gem_transmit_updatestats(s, tx_packet, total_bytes); 94349ab747fSPaolo Bonzini 94449ab747fSPaolo Bonzini /* Send the packet somewhere */ 94524e822eaSPeter Crosthwaite if (s->phy_loop || (s->regs[GEM_NWCTRL] & GEM_NWCTRL_LOCALLOOP)) { 94649ab747fSPaolo Bonzini gem_receive(qemu_get_queue(s->nic), tx_packet, total_bytes); 94749ab747fSPaolo Bonzini } else { 94849ab747fSPaolo Bonzini qemu_send_packet(qemu_get_queue(s->nic), tx_packet, 94949ab747fSPaolo Bonzini total_bytes); 95049ab747fSPaolo Bonzini } 95149ab747fSPaolo Bonzini 95249ab747fSPaolo Bonzini /* Prepare for next packet */ 95349ab747fSPaolo Bonzini p = tx_packet; 95449ab747fSPaolo Bonzini total_bytes = 0; 95549ab747fSPaolo Bonzini } 95649ab747fSPaolo Bonzini 95749ab747fSPaolo Bonzini /* read next descriptor */ 95849ab747fSPaolo Bonzini if (tx_desc_get_wrap(desc)) { 95949ab747fSPaolo Bonzini packet_desc_addr = s->regs[GEM_TXQBASE]; 96049ab747fSPaolo Bonzini } else { 96149ab747fSPaolo Bonzini packet_desc_addr += 8; 96249ab747fSPaolo Bonzini } 96349ab747fSPaolo Bonzini cpu_physical_memory_read(packet_desc_addr, 96449ab747fSPaolo Bonzini (uint8_t *)&desc[0], sizeof(desc)); 96549ab747fSPaolo Bonzini } 96649ab747fSPaolo Bonzini 96749ab747fSPaolo Bonzini if (tx_desc_get_used(desc)) { 96849ab747fSPaolo Bonzini s->regs[GEM_TXSTATUS] |= GEM_TXSTATUS_USED; 96949ab747fSPaolo Bonzini s->regs[GEM_ISR] |= GEM_INT_TXUSED & ~(s->regs[GEM_IMR]); 97049ab747fSPaolo Bonzini gem_update_int_status(s); 97149ab747fSPaolo Bonzini } 97249ab747fSPaolo Bonzini } 97349ab747fSPaolo Bonzini 97449ab747fSPaolo Bonzini static void gem_phy_reset(GemState *s) 97549ab747fSPaolo Bonzini { 97649ab747fSPaolo Bonzini memset(&s->phy_regs[0], 0, sizeof(s->phy_regs)); 97749ab747fSPaolo Bonzini s->phy_regs[PHY_REG_CONTROL] = 0x1140; 97849ab747fSPaolo Bonzini s->phy_regs[PHY_REG_STATUS] = 0x7969; 97949ab747fSPaolo Bonzini s->phy_regs[PHY_REG_PHYID1] = 0x0141; 98049ab747fSPaolo Bonzini s->phy_regs[PHY_REG_PHYID2] = 0x0CC2; 98149ab747fSPaolo Bonzini s->phy_regs[PHY_REG_ANEGADV] = 0x01E1; 98249ab747fSPaolo Bonzini s->phy_regs[PHY_REG_LINKPABIL] = 0xCDE1; 98349ab747fSPaolo Bonzini s->phy_regs[PHY_REG_ANEGEXP] = 0x000F; 98449ab747fSPaolo Bonzini s->phy_regs[PHY_REG_NEXTP] = 0x2001; 98549ab747fSPaolo Bonzini s->phy_regs[PHY_REG_LINKPNEXTP] = 0x40E6; 98649ab747fSPaolo Bonzini s->phy_regs[PHY_REG_100BTCTRL] = 0x0300; 98749ab747fSPaolo Bonzini s->phy_regs[PHY_REG_1000BTSTAT] = 0x7C00; 98849ab747fSPaolo Bonzini s->phy_regs[PHY_REG_EXTSTAT] = 0x3000; 98949ab747fSPaolo Bonzini s->phy_regs[PHY_REG_PHYSPCFC_CTL] = 0x0078; 99049ab747fSPaolo Bonzini s->phy_regs[PHY_REG_PHYSPCFC_ST] = 0xBC00; 99149ab747fSPaolo Bonzini s->phy_regs[PHY_REG_EXT_PHYSPCFC_CTL] = 0x0C60; 99249ab747fSPaolo Bonzini s->phy_regs[PHY_REG_LED] = 0x4100; 99349ab747fSPaolo Bonzini s->phy_regs[PHY_REG_EXT_PHYSPCFC_CTL2] = 0x000A; 99449ab747fSPaolo Bonzini s->phy_regs[PHY_REG_EXT_PHYSPCFC_ST] = 0x848B; 99549ab747fSPaolo Bonzini 99649ab747fSPaolo Bonzini phy_update_link(s); 99749ab747fSPaolo Bonzini } 99849ab747fSPaolo Bonzini 99949ab747fSPaolo Bonzini static void gem_reset(DeviceState *d) 100049ab747fSPaolo Bonzini { 100164eb9301SPeter Crosthwaite int i; 1002318643beSAndreas Färber GemState *s = GEM(d); 100349ab747fSPaolo Bonzini 100449ab747fSPaolo Bonzini DB_PRINT("\n"); 100549ab747fSPaolo Bonzini 100649ab747fSPaolo Bonzini /* Set post reset register values */ 100749ab747fSPaolo Bonzini memset(&s->regs[0], 0, sizeof(s->regs)); 100849ab747fSPaolo Bonzini s->regs[GEM_NWCFG] = 0x00080000; 100949ab747fSPaolo Bonzini s->regs[GEM_NWSTATUS] = 0x00000006; 101049ab747fSPaolo Bonzini s->regs[GEM_DMACFG] = 0x00020784; 101149ab747fSPaolo Bonzini s->regs[GEM_IMR] = 0x07ffffff; 101249ab747fSPaolo Bonzini s->regs[GEM_TXPAUSE] = 0x0000ffff; 101349ab747fSPaolo Bonzini s->regs[GEM_TXPARTIALSF] = 0x000003ff; 101449ab747fSPaolo Bonzini s->regs[GEM_RXPARTIALSF] = 0x000003ff; 101549ab747fSPaolo Bonzini s->regs[GEM_MODID] = 0x00020118; 101649ab747fSPaolo Bonzini s->regs[GEM_DESCONF] = 0x02500111; 101749ab747fSPaolo Bonzini s->regs[GEM_DESCONF2] = 0x2ab13fff; 101849ab747fSPaolo Bonzini s->regs[GEM_DESCONF5] = 0x002f2145; 101949ab747fSPaolo Bonzini s->regs[GEM_DESCONF6] = 0x00000200; 102049ab747fSPaolo Bonzini 102164eb9301SPeter Crosthwaite for (i = 0; i < 4; i++) { 102264eb9301SPeter Crosthwaite s->sar_active[i] = false; 102364eb9301SPeter Crosthwaite } 102464eb9301SPeter Crosthwaite 102549ab747fSPaolo Bonzini gem_phy_reset(s); 102649ab747fSPaolo Bonzini 102749ab747fSPaolo Bonzini gem_update_int_status(s); 102849ab747fSPaolo Bonzini } 102949ab747fSPaolo Bonzini 103049ab747fSPaolo Bonzini static uint16_t gem_phy_read(GemState *s, unsigned reg_num) 103149ab747fSPaolo Bonzini { 103249ab747fSPaolo Bonzini DB_PRINT("reg: %d value: 0x%04x\n", reg_num, s->phy_regs[reg_num]); 103349ab747fSPaolo Bonzini return s->phy_regs[reg_num]; 103449ab747fSPaolo Bonzini } 103549ab747fSPaolo Bonzini 103649ab747fSPaolo Bonzini static void gem_phy_write(GemState *s, unsigned reg_num, uint16_t val) 103749ab747fSPaolo Bonzini { 103849ab747fSPaolo Bonzini DB_PRINT("reg: %d value: 0x%04x\n", reg_num, val); 103949ab747fSPaolo Bonzini 104049ab747fSPaolo Bonzini switch (reg_num) { 104149ab747fSPaolo Bonzini case PHY_REG_CONTROL: 104249ab747fSPaolo Bonzini if (val & PHY_REG_CONTROL_RST) { 104349ab747fSPaolo Bonzini /* Phy reset */ 104449ab747fSPaolo Bonzini gem_phy_reset(s); 104549ab747fSPaolo Bonzini val &= ~(PHY_REG_CONTROL_RST | PHY_REG_CONTROL_LOOP); 104649ab747fSPaolo Bonzini s->phy_loop = 0; 104749ab747fSPaolo Bonzini } 104849ab747fSPaolo Bonzini if (val & PHY_REG_CONTROL_ANEG) { 104949ab747fSPaolo Bonzini /* Complete autonegotiation immediately */ 105049ab747fSPaolo Bonzini val &= ~PHY_REG_CONTROL_ANEG; 105149ab747fSPaolo Bonzini s->phy_regs[PHY_REG_STATUS] |= PHY_REG_STATUS_ANEGCMPL; 105249ab747fSPaolo Bonzini } 105349ab747fSPaolo Bonzini if (val & PHY_REG_CONTROL_LOOP) { 105449ab747fSPaolo Bonzini DB_PRINT("PHY placed in loopback\n"); 105549ab747fSPaolo Bonzini s->phy_loop = 1; 105649ab747fSPaolo Bonzini } else { 105749ab747fSPaolo Bonzini s->phy_loop = 0; 105849ab747fSPaolo Bonzini } 105949ab747fSPaolo Bonzini break; 106049ab747fSPaolo Bonzini } 106149ab747fSPaolo Bonzini s->phy_regs[reg_num] = val; 106249ab747fSPaolo Bonzini } 106349ab747fSPaolo Bonzini 106449ab747fSPaolo Bonzini /* 106549ab747fSPaolo Bonzini * gem_read32: 106649ab747fSPaolo Bonzini * Read a GEM register. 106749ab747fSPaolo Bonzini */ 106849ab747fSPaolo Bonzini static uint64_t gem_read(void *opaque, hwaddr offset, unsigned size) 106949ab747fSPaolo Bonzini { 107049ab747fSPaolo Bonzini GemState *s; 107149ab747fSPaolo Bonzini uint32_t retval; 107249ab747fSPaolo Bonzini 107349ab747fSPaolo Bonzini s = (GemState *)opaque; 107449ab747fSPaolo Bonzini 107549ab747fSPaolo Bonzini offset >>= 2; 107649ab747fSPaolo Bonzini retval = s->regs[offset]; 107749ab747fSPaolo Bonzini 107849ab747fSPaolo Bonzini DB_PRINT("offset: 0x%04x read: 0x%08x\n", (unsigned)offset*4, retval); 107949ab747fSPaolo Bonzini 108049ab747fSPaolo Bonzini switch (offset) { 108149ab747fSPaolo Bonzini case GEM_ISR: 108249ab747fSPaolo Bonzini DB_PRINT("lowering irq on ISR read\n"); 108349ab747fSPaolo Bonzini qemu_set_irq(s->irq, 0); 108449ab747fSPaolo Bonzini break; 108549ab747fSPaolo Bonzini case GEM_PHYMNTNC: 108649ab747fSPaolo Bonzini if (retval & GEM_PHYMNTNC_OP_R) { 108749ab747fSPaolo Bonzini uint32_t phy_addr, reg_num; 108849ab747fSPaolo Bonzini 108949ab747fSPaolo Bonzini phy_addr = (retval & GEM_PHYMNTNC_ADDR) >> GEM_PHYMNTNC_ADDR_SHFT; 109055389373SPeter Crosthwaite if (phy_addr == BOARD_PHY_ADDRESS || phy_addr == 0) { 109149ab747fSPaolo Bonzini reg_num = (retval & GEM_PHYMNTNC_REG) >> GEM_PHYMNTNC_REG_SHIFT; 109249ab747fSPaolo Bonzini retval &= 0xFFFF0000; 109349ab747fSPaolo Bonzini retval |= gem_phy_read(s, reg_num); 109449ab747fSPaolo Bonzini } else { 109549ab747fSPaolo Bonzini retval |= 0xFFFF; /* No device at this address */ 109649ab747fSPaolo Bonzini } 109749ab747fSPaolo Bonzini } 109849ab747fSPaolo Bonzini break; 109949ab747fSPaolo Bonzini } 110049ab747fSPaolo Bonzini 110149ab747fSPaolo Bonzini /* Squash read to clear bits */ 110249ab747fSPaolo Bonzini s->regs[offset] &= ~(s->regs_rtc[offset]); 110349ab747fSPaolo Bonzini 110449ab747fSPaolo Bonzini /* Do not provide write only bits */ 110549ab747fSPaolo Bonzini retval &= ~(s->regs_wo[offset]); 110649ab747fSPaolo Bonzini 110749ab747fSPaolo Bonzini DB_PRINT("0x%08x\n", retval); 110849ab747fSPaolo Bonzini return retval; 110949ab747fSPaolo Bonzini } 111049ab747fSPaolo Bonzini 111149ab747fSPaolo Bonzini /* 111249ab747fSPaolo Bonzini * gem_write32: 111349ab747fSPaolo Bonzini * Write a GEM register. 111449ab747fSPaolo Bonzini */ 111549ab747fSPaolo Bonzini static void gem_write(void *opaque, hwaddr offset, uint64_t val, 111649ab747fSPaolo Bonzini unsigned size) 111749ab747fSPaolo Bonzini { 111849ab747fSPaolo Bonzini GemState *s = (GemState *)opaque; 111949ab747fSPaolo Bonzini uint32_t readonly; 112049ab747fSPaolo Bonzini 112149ab747fSPaolo Bonzini DB_PRINT("offset: 0x%04x write: 0x%08x ", (unsigned)offset, (unsigned)val); 112249ab747fSPaolo Bonzini offset >>= 2; 112349ab747fSPaolo Bonzini 112449ab747fSPaolo Bonzini /* Squash bits which are read only in write value */ 112549ab747fSPaolo Bonzini val &= ~(s->regs_ro[offset]); 1126e2314fdaSPeter Crosthwaite /* Preserve (only) bits which are read only and wtc in register */ 1127e2314fdaSPeter Crosthwaite readonly = s->regs[offset] & (s->regs_ro[offset] | s->regs_w1c[offset]); 112849ab747fSPaolo Bonzini 112949ab747fSPaolo Bonzini /* Copy register write to backing store */ 1130e2314fdaSPeter Crosthwaite s->regs[offset] = (val & ~s->regs_w1c[offset]) | readonly; 1131e2314fdaSPeter Crosthwaite 1132e2314fdaSPeter Crosthwaite /* do w1c */ 1133e2314fdaSPeter Crosthwaite s->regs[offset] &= ~(s->regs_w1c[offset] & val); 113449ab747fSPaolo Bonzini 113549ab747fSPaolo Bonzini /* Handle register write side effects */ 113649ab747fSPaolo Bonzini switch (offset) { 113749ab747fSPaolo Bonzini case GEM_NWCTRL: 113806c2fe95SPeter Crosthwaite if (val & GEM_NWCTRL_RXENA) { 113906c2fe95SPeter Crosthwaite gem_get_rx_desc(s); 114006c2fe95SPeter Crosthwaite } 114149ab747fSPaolo Bonzini if (val & GEM_NWCTRL_TXSTART) { 114249ab747fSPaolo Bonzini gem_transmit(s); 114349ab747fSPaolo Bonzini } 114449ab747fSPaolo Bonzini if (!(val & GEM_NWCTRL_TXENA)) { 114549ab747fSPaolo Bonzini /* Reset to start of Q when transmit disabled. */ 114649ab747fSPaolo Bonzini s->tx_desc_addr = s->regs[GEM_TXQBASE]; 114749ab747fSPaolo Bonzini } 11488202aa53SPeter Crosthwaite if (gem_can_receive(qemu_get_queue(s->nic))) { 114949ab747fSPaolo Bonzini qemu_flush_queued_packets(qemu_get_queue(s->nic)); 115049ab747fSPaolo Bonzini } 115149ab747fSPaolo Bonzini break; 115249ab747fSPaolo Bonzini 115349ab747fSPaolo Bonzini case GEM_TXSTATUS: 115449ab747fSPaolo Bonzini gem_update_int_status(s); 115549ab747fSPaolo Bonzini break; 115649ab747fSPaolo Bonzini case GEM_RXQBASE: 115749ab747fSPaolo Bonzini s->rx_desc_addr = val; 115849ab747fSPaolo Bonzini break; 115949ab747fSPaolo Bonzini case GEM_TXQBASE: 116049ab747fSPaolo Bonzini s->tx_desc_addr = val; 116149ab747fSPaolo Bonzini break; 116249ab747fSPaolo Bonzini case GEM_RXSTATUS: 116349ab747fSPaolo Bonzini gem_update_int_status(s); 116449ab747fSPaolo Bonzini break; 116549ab747fSPaolo Bonzini case GEM_IER: 116649ab747fSPaolo Bonzini s->regs[GEM_IMR] &= ~val; 116749ab747fSPaolo Bonzini gem_update_int_status(s); 116849ab747fSPaolo Bonzini break; 116949ab747fSPaolo Bonzini case GEM_IDR: 117049ab747fSPaolo Bonzini s->regs[GEM_IMR] |= val; 117149ab747fSPaolo Bonzini gem_update_int_status(s); 117249ab747fSPaolo Bonzini break; 117364eb9301SPeter Crosthwaite case GEM_SPADDR1LO: 117464eb9301SPeter Crosthwaite case GEM_SPADDR2LO: 117564eb9301SPeter Crosthwaite case GEM_SPADDR3LO: 117664eb9301SPeter Crosthwaite case GEM_SPADDR4LO: 117764eb9301SPeter Crosthwaite s->sar_active[(offset - GEM_SPADDR1LO) / 2] = false; 117864eb9301SPeter Crosthwaite break; 117964eb9301SPeter Crosthwaite case GEM_SPADDR1HI: 118064eb9301SPeter Crosthwaite case GEM_SPADDR2HI: 118164eb9301SPeter Crosthwaite case GEM_SPADDR3HI: 118264eb9301SPeter Crosthwaite case GEM_SPADDR4HI: 118364eb9301SPeter Crosthwaite s->sar_active[(offset - GEM_SPADDR1HI) / 2] = true; 118464eb9301SPeter Crosthwaite break; 118549ab747fSPaolo Bonzini case GEM_PHYMNTNC: 118649ab747fSPaolo Bonzini if (val & GEM_PHYMNTNC_OP_W) { 118749ab747fSPaolo Bonzini uint32_t phy_addr, reg_num; 118849ab747fSPaolo Bonzini 118949ab747fSPaolo Bonzini phy_addr = (val & GEM_PHYMNTNC_ADDR) >> GEM_PHYMNTNC_ADDR_SHFT; 119055389373SPeter Crosthwaite if (phy_addr == BOARD_PHY_ADDRESS || phy_addr == 0) { 119149ab747fSPaolo Bonzini reg_num = (val & GEM_PHYMNTNC_REG) >> GEM_PHYMNTNC_REG_SHIFT; 119249ab747fSPaolo Bonzini gem_phy_write(s, reg_num, val); 119349ab747fSPaolo Bonzini } 119449ab747fSPaolo Bonzini } 119549ab747fSPaolo Bonzini break; 119649ab747fSPaolo Bonzini } 119749ab747fSPaolo Bonzini 119849ab747fSPaolo Bonzini DB_PRINT("newval: 0x%08x\n", s->regs[offset]); 119949ab747fSPaolo Bonzini } 120049ab747fSPaolo Bonzini 120149ab747fSPaolo Bonzini static const MemoryRegionOps gem_ops = { 120249ab747fSPaolo Bonzini .read = gem_read, 120349ab747fSPaolo Bonzini .write = gem_write, 120449ab747fSPaolo Bonzini .endianness = DEVICE_LITTLE_ENDIAN, 120549ab747fSPaolo Bonzini }; 120649ab747fSPaolo Bonzini 120749ab747fSPaolo Bonzini static void gem_cleanup(NetClientState *nc) 120849ab747fSPaolo Bonzini { 120949ab747fSPaolo Bonzini GemState *s = qemu_get_nic_opaque(nc); 121049ab747fSPaolo Bonzini 121149ab747fSPaolo Bonzini DB_PRINT("\n"); 121249ab747fSPaolo Bonzini s->nic = NULL; 121349ab747fSPaolo Bonzini } 121449ab747fSPaolo Bonzini 121549ab747fSPaolo Bonzini static void gem_set_link(NetClientState *nc) 121649ab747fSPaolo Bonzini { 121749ab747fSPaolo Bonzini DB_PRINT("\n"); 121849ab747fSPaolo Bonzini phy_update_link(qemu_get_nic_opaque(nc)); 121949ab747fSPaolo Bonzini } 122049ab747fSPaolo Bonzini 122149ab747fSPaolo Bonzini static NetClientInfo net_gem_info = { 122249ab747fSPaolo Bonzini .type = NET_CLIENT_OPTIONS_KIND_NIC, 122349ab747fSPaolo Bonzini .size = sizeof(NICState), 122449ab747fSPaolo Bonzini .can_receive = gem_can_receive, 122549ab747fSPaolo Bonzini .receive = gem_receive, 122649ab747fSPaolo Bonzini .cleanup = gem_cleanup, 122749ab747fSPaolo Bonzini .link_status_changed = gem_set_link, 122849ab747fSPaolo Bonzini }; 122949ab747fSPaolo Bonzini 1230318643beSAndreas Färber static int gem_init(SysBusDevice *sbd) 123149ab747fSPaolo Bonzini { 1232318643beSAndreas Färber DeviceState *dev = DEVICE(sbd); 1233318643beSAndreas Färber GemState *s = GEM(dev); 123449ab747fSPaolo Bonzini 123549ab747fSPaolo Bonzini DB_PRINT("\n"); 123649ab747fSPaolo Bonzini 123749ab747fSPaolo Bonzini gem_init_register_masks(s); 1238eedfac6fSPaolo Bonzini memory_region_init_io(&s->iomem, OBJECT(s), &gem_ops, s, 1239eedfac6fSPaolo Bonzini "enet", sizeof(s->regs)); 1240318643beSAndreas Färber sysbus_init_mmio(sbd, &s->iomem); 1241318643beSAndreas Färber sysbus_init_irq(sbd, &s->irq); 124249ab747fSPaolo Bonzini qemu_macaddr_default_if_unset(&s->conf.macaddr); 124349ab747fSPaolo Bonzini 124449ab747fSPaolo Bonzini s->nic = qemu_new_nic(&net_gem_info, &s->conf, 1245318643beSAndreas Färber object_get_typename(OBJECT(dev)), dev->id, s); 124649ab747fSPaolo Bonzini 124749ab747fSPaolo Bonzini return 0; 124849ab747fSPaolo Bonzini } 124949ab747fSPaolo Bonzini 125049ab747fSPaolo Bonzini static const VMStateDescription vmstate_cadence_gem = { 125149ab747fSPaolo Bonzini .name = "cadence_gem", 125264eb9301SPeter Crosthwaite .version_id = 2, 125364eb9301SPeter Crosthwaite .minimum_version_id = 2, 125449ab747fSPaolo Bonzini .fields = (VMStateField[]) { 125549ab747fSPaolo Bonzini VMSTATE_UINT32_ARRAY(regs, GemState, GEM_MAXREG), 125649ab747fSPaolo Bonzini VMSTATE_UINT16_ARRAY(phy_regs, GemState, 32), 125749ab747fSPaolo Bonzini VMSTATE_UINT8(phy_loop, GemState), 125849ab747fSPaolo Bonzini VMSTATE_UINT32(rx_desc_addr, GemState), 125949ab747fSPaolo Bonzini VMSTATE_UINT32(tx_desc_addr, GemState), 126064eb9301SPeter Crosthwaite VMSTATE_BOOL_ARRAY(sar_active, GemState, 4), 126117cf2c76SPeter Crosthwaite VMSTATE_END_OF_LIST(), 126249ab747fSPaolo Bonzini } 126349ab747fSPaolo Bonzini }; 126449ab747fSPaolo Bonzini 126549ab747fSPaolo Bonzini static Property gem_properties[] = { 126649ab747fSPaolo Bonzini DEFINE_NIC_PROPERTIES(GemState, conf), 126749ab747fSPaolo Bonzini DEFINE_PROP_END_OF_LIST(), 126849ab747fSPaolo Bonzini }; 126949ab747fSPaolo Bonzini 127049ab747fSPaolo Bonzini static void gem_class_init(ObjectClass *klass, void *data) 127149ab747fSPaolo Bonzini { 127249ab747fSPaolo Bonzini DeviceClass *dc = DEVICE_CLASS(klass); 127349ab747fSPaolo Bonzini SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass); 127449ab747fSPaolo Bonzini 127549ab747fSPaolo Bonzini sdc->init = gem_init; 127649ab747fSPaolo Bonzini dc->props = gem_properties; 127749ab747fSPaolo Bonzini dc->vmsd = &vmstate_cadence_gem; 127849ab747fSPaolo Bonzini dc->reset = gem_reset; 127949ab747fSPaolo Bonzini } 128049ab747fSPaolo Bonzini 128149ab747fSPaolo Bonzini static const TypeInfo gem_info = { 1282318643beSAndreas Färber .name = TYPE_CADENCE_GEM, 128349ab747fSPaolo Bonzini .parent = TYPE_SYS_BUS_DEVICE, 128449ab747fSPaolo Bonzini .instance_size = sizeof(GemState), 1285318643beSAndreas Färber .class_init = gem_class_init, 128649ab747fSPaolo Bonzini }; 128749ab747fSPaolo Bonzini 128849ab747fSPaolo Bonzini static void gem_register_types(void) 128949ab747fSPaolo Bonzini { 129049ab747fSPaolo Bonzini type_register_static(&gem_info); 129149ab747fSPaolo Bonzini } 129249ab747fSPaolo Bonzini 129349ab747fSPaolo Bonzini type_init(gem_register_types) 1294