Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Faraday FTGMAC100 Gigabit Ethernet |
| 3 | * |
| 4 | * Copyright (C) 2016-2017, IBM Corporation. |
| 5 | * |
| 6 | * Based on Coldfire Fast Ethernet Controller emulation. |
| 7 | * |
| 8 | * Copyright (c) 2007 CodeSourcery. |
| 9 | * |
| 10 | * This code is licensed under the GPL version 2 or later. See the |
| 11 | * COPYING file in the top-level directory. |
| 12 | */ |
| 13 | |
| 14 | #include "qemu/osdep.h" |
Markus Armbruster | 64552b6 | 2019-08-12 07:23:42 +0200 | [diff] [blame] | 15 | #include "hw/irq.h" |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 16 | #include "hw/net/ftgmac100.h" |
| 17 | #include "sysemu/dma.h" |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 18 | #include "qapi/error.h" |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 19 | #include "qemu/log.h" |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 20 | #include "qemu/module.h" |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 21 | #include "net/checksum.h" |
| 22 | #include "net/eth.h" |
| 23 | #include "hw/net/mii.h" |
Markus Armbruster | a27bd6c | 2019-08-12 07:23:51 +0200 | [diff] [blame] | 24 | #include "hw/qdev-properties.h" |
Markus Armbruster | d645427 | 2019-08-12 07:23:45 +0200 | [diff] [blame] | 25 | #include "migration/vmstate.h" |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 26 | |
| 27 | /* For crc32 */ |
| 28 | #include <zlib.h> |
| 29 | |
| 30 | /* |
| 31 | * FTGMAC100 registers |
| 32 | */ |
| 33 | #define FTGMAC100_ISR 0x00 |
| 34 | #define FTGMAC100_IER 0x04 |
| 35 | #define FTGMAC100_MAC_MADR 0x08 |
| 36 | #define FTGMAC100_MAC_LADR 0x0c |
| 37 | #define FTGMAC100_MATH0 0x10 |
| 38 | #define FTGMAC100_MATH1 0x14 |
| 39 | #define FTGMAC100_NPTXPD 0x18 |
| 40 | #define FTGMAC100_RXPD 0x1C |
| 41 | #define FTGMAC100_NPTXR_BADR 0x20 |
| 42 | #define FTGMAC100_RXR_BADR 0x24 |
| 43 | #define FTGMAC100_HPTXPD 0x28 |
| 44 | #define FTGMAC100_HPTXR_BADR 0x2c |
| 45 | #define FTGMAC100_ITC 0x30 |
| 46 | #define FTGMAC100_APTC 0x34 |
| 47 | #define FTGMAC100_DBLAC 0x38 |
| 48 | #define FTGMAC100_REVR 0x40 |
| 49 | #define FTGMAC100_FEAR1 0x44 |
| 50 | #define FTGMAC100_RBSR 0x4c |
| 51 | #define FTGMAC100_TPAFCR 0x48 |
| 52 | |
| 53 | #define FTGMAC100_MACCR 0x50 |
| 54 | #define FTGMAC100_MACSR 0x54 |
| 55 | #define FTGMAC100_PHYCR 0x60 |
| 56 | #define FTGMAC100_PHYDATA 0x64 |
| 57 | #define FTGMAC100_FCR 0x68 |
| 58 | |
| 59 | /* |
| 60 | * Interrupt status register & interrupt enable register |
| 61 | */ |
| 62 | #define FTGMAC100_INT_RPKT_BUF (1 << 0) |
| 63 | #define FTGMAC100_INT_RPKT_FIFO (1 << 1) |
| 64 | #define FTGMAC100_INT_NO_RXBUF (1 << 2) |
| 65 | #define FTGMAC100_INT_RPKT_LOST (1 << 3) |
| 66 | #define FTGMAC100_INT_XPKT_ETH (1 << 4) |
| 67 | #define FTGMAC100_INT_XPKT_FIFO (1 << 5) |
| 68 | #define FTGMAC100_INT_NO_NPTXBUF (1 << 6) |
| 69 | #define FTGMAC100_INT_XPKT_LOST (1 << 7) |
| 70 | #define FTGMAC100_INT_AHB_ERR (1 << 8) |
| 71 | #define FTGMAC100_INT_PHYSTS_CHG (1 << 9) |
| 72 | #define FTGMAC100_INT_NO_HPTXBUF (1 << 10) |
| 73 | |
| 74 | /* |
| 75 | * Automatic polling timer control register |
| 76 | */ |
| 77 | #define FTGMAC100_APTC_RXPOLL_CNT(x) ((x) & 0xf) |
| 78 | #define FTGMAC100_APTC_RXPOLL_TIME_SEL (1 << 4) |
| 79 | #define FTGMAC100_APTC_TXPOLL_CNT(x) (((x) >> 8) & 0xf) |
| 80 | #define FTGMAC100_APTC_TXPOLL_TIME_SEL (1 << 12) |
| 81 | |
| 82 | /* |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 83 | * DMA burst length and arbitration control register |
| 84 | */ |
| 85 | #define FTGMAC100_DBLAC_RXBURST_SIZE(x) (((x) >> 8) & 0x3) |
| 86 | #define FTGMAC100_DBLAC_TXBURST_SIZE(x) (((x) >> 10) & 0x3) |
| 87 | #define FTGMAC100_DBLAC_RXDES_SIZE(x) ((((x) >> 12) & 0xf) * 8) |
| 88 | #define FTGMAC100_DBLAC_TXDES_SIZE(x) ((((x) >> 16) & 0xf) * 8) |
| 89 | #define FTGMAC100_DBLAC_IFG_CNT(x) (((x) >> 20) & 0x7) |
| 90 | #define FTGMAC100_DBLAC_IFG_INC (1 << 23) |
| 91 | |
| 92 | /* |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 93 | * PHY control register |
| 94 | */ |
| 95 | #define FTGMAC100_PHYCR_MIIRD (1 << 26) |
| 96 | #define FTGMAC100_PHYCR_MIIWR (1 << 27) |
| 97 | |
| 98 | #define FTGMAC100_PHYCR_DEV(x) (((x) >> 16) & 0x1f) |
| 99 | #define FTGMAC100_PHYCR_REG(x) (((x) >> 21) & 0x1f) |
| 100 | |
| 101 | /* |
| 102 | * PHY data register |
| 103 | */ |
| 104 | #define FTGMAC100_PHYDATA_MIIWDATA(x) ((x) & 0xffff) |
| 105 | #define FTGMAC100_PHYDATA_MIIRDATA(x) (((x) >> 16) & 0xffff) |
| 106 | |
| 107 | /* |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 108 | * PHY control register - New MDC/MDIO interface |
| 109 | */ |
| 110 | #define FTGMAC100_PHYCR_NEW_DATA(x) (((x) >> 16) & 0xffff) |
| 111 | #define FTGMAC100_PHYCR_NEW_FIRE (1 << 15) |
| 112 | #define FTGMAC100_PHYCR_NEW_ST_22 (1 << 12) |
| 113 | #define FTGMAC100_PHYCR_NEW_OP(x) (((x) >> 10) & 3) |
| 114 | #define FTGMAC100_PHYCR_NEW_OP_WRITE 0x1 |
| 115 | #define FTGMAC100_PHYCR_NEW_OP_READ 0x2 |
| 116 | #define FTGMAC100_PHYCR_NEW_DEV(x) (((x) >> 5) & 0x1f) |
| 117 | #define FTGMAC100_PHYCR_NEW_REG(x) ((x) & 0x1f) |
| 118 | |
| 119 | /* |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 120 | * Feature Register |
| 121 | */ |
| 122 | #define FTGMAC100_REVR_NEW_MDIO_INTERFACE (1 << 31) |
| 123 | |
| 124 | /* |
| 125 | * MAC control register |
| 126 | */ |
| 127 | #define FTGMAC100_MACCR_TXDMA_EN (1 << 0) |
| 128 | #define FTGMAC100_MACCR_RXDMA_EN (1 << 1) |
| 129 | #define FTGMAC100_MACCR_TXMAC_EN (1 << 2) |
| 130 | #define FTGMAC100_MACCR_RXMAC_EN (1 << 3) |
| 131 | #define FTGMAC100_MACCR_RM_VLAN (1 << 4) |
| 132 | #define FTGMAC100_MACCR_HPTXR_EN (1 << 5) |
| 133 | #define FTGMAC100_MACCR_LOOP_EN (1 << 6) |
| 134 | #define FTGMAC100_MACCR_ENRX_IN_HALFTX (1 << 7) |
| 135 | #define FTGMAC100_MACCR_FULLDUP (1 << 8) |
| 136 | #define FTGMAC100_MACCR_GIGA_MODE (1 << 9) |
| 137 | #define FTGMAC100_MACCR_CRC_APD (1 << 10) /* not needed */ |
| 138 | #define FTGMAC100_MACCR_RX_RUNT (1 << 12) |
| 139 | #define FTGMAC100_MACCR_JUMBO_LF (1 << 13) |
| 140 | #define FTGMAC100_MACCR_RX_ALL (1 << 14) |
| 141 | #define FTGMAC100_MACCR_HT_MULTI_EN (1 << 15) |
| 142 | #define FTGMAC100_MACCR_RX_MULTIPKT (1 << 16) |
| 143 | #define FTGMAC100_MACCR_RX_BROADPKT (1 << 17) |
| 144 | #define FTGMAC100_MACCR_DISCARD_CRCERR (1 << 18) |
| 145 | #define FTGMAC100_MACCR_FAST_MODE (1 << 19) |
| 146 | #define FTGMAC100_MACCR_SW_RST (1 << 31) |
| 147 | |
| 148 | /* |
| 149 | * Transmit descriptor |
| 150 | */ |
| 151 | #define FTGMAC100_TXDES0_TXBUF_SIZE(x) ((x) & 0x3fff) |
| 152 | #define FTGMAC100_TXDES0_EDOTR (1 << 15) |
| 153 | #define FTGMAC100_TXDES0_CRC_ERR (1 << 19) |
| 154 | #define FTGMAC100_TXDES0_LTS (1 << 28) |
| 155 | #define FTGMAC100_TXDES0_FTS (1 << 29) |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 156 | #define FTGMAC100_TXDES0_EDOTR_ASPEED (1 << 30) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 157 | #define FTGMAC100_TXDES0_TXDMA_OWN (1 << 31) |
| 158 | |
| 159 | #define FTGMAC100_TXDES1_VLANTAG_CI(x) ((x) & 0xffff) |
| 160 | #define FTGMAC100_TXDES1_INS_VLANTAG (1 << 16) |
| 161 | #define FTGMAC100_TXDES1_TCP_CHKSUM (1 << 17) |
| 162 | #define FTGMAC100_TXDES1_UDP_CHKSUM (1 << 18) |
| 163 | #define FTGMAC100_TXDES1_IP_CHKSUM (1 << 19) |
| 164 | #define FTGMAC100_TXDES1_LLC (1 << 22) |
| 165 | #define FTGMAC100_TXDES1_TX2FIC (1 << 30) |
| 166 | #define FTGMAC100_TXDES1_TXIC (1 << 31) |
| 167 | |
| 168 | /* |
| 169 | * Receive descriptor |
| 170 | */ |
| 171 | #define FTGMAC100_RXDES0_VDBC 0x3fff |
| 172 | #define FTGMAC100_RXDES0_EDORR (1 << 15) |
| 173 | #define FTGMAC100_RXDES0_MULTICAST (1 << 16) |
| 174 | #define FTGMAC100_RXDES0_BROADCAST (1 << 17) |
| 175 | #define FTGMAC100_RXDES0_RX_ERR (1 << 18) |
| 176 | #define FTGMAC100_RXDES0_CRC_ERR (1 << 19) |
| 177 | #define FTGMAC100_RXDES0_FTL (1 << 20) |
| 178 | #define FTGMAC100_RXDES0_RUNT (1 << 21) |
| 179 | #define FTGMAC100_RXDES0_RX_ODD_NB (1 << 22) |
| 180 | #define FTGMAC100_RXDES0_FIFO_FULL (1 << 23) |
| 181 | #define FTGMAC100_RXDES0_PAUSE_OPCODE (1 << 24) |
| 182 | #define FTGMAC100_RXDES0_PAUSE_FRAME (1 << 25) |
| 183 | #define FTGMAC100_RXDES0_LRS (1 << 28) |
| 184 | #define FTGMAC100_RXDES0_FRS (1 << 29) |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 185 | #define FTGMAC100_RXDES0_EDORR_ASPEED (1 << 30) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 186 | #define FTGMAC100_RXDES0_RXPKT_RDY (1 << 31) |
| 187 | |
| 188 | #define FTGMAC100_RXDES1_VLANTAG_CI 0xffff |
| 189 | #define FTGMAC100_RXDES1_PROT_MASK (0x3 << 20) |
| 190 | #define FTGMAC100_RXDES1_PROT_NONIP (0x0 << 20) |
| 191 | #define FTGMAC100_RXDES1_PROT_IP (0x1 << 20) |
| 192 | #define FTGMAC100_RXDES1_PROT_TCPIP (0x2 << 20) |
| 193 | #define FTGMAC100_RXDES1_PROT_UDPIP (0x3 << 20) |
| 194 | #define FTGMAC100_RXDES1_LLC (1 << 22) |
| 195 | #define FTGMAC100_RXDES1_DF (1 << 23) |
| 196 | #define FTGMAC100_RXDES1_VLANTAG_AVAIL (1 << 24) |
| 197 | #define FTGMAC100_RXDES1_TCP_CHKSUM_ERR (1 << 25) |
| 198 | #define FTGMAC100_RXDES1_UDP_CHKSUM_ERR (1 << 26) |
| 199 | #define FTGMAC100_RXDES1_IP_CHKSUM_ERR (1 << 27) |
| 200 | |
| 201 | /* |
| 202 | * Receive and transmit Buffer Descriptor |
| 203 | */ |
| 204 | typedef struct { |
| 205 | uint32_t des0; |
| 206 | uint32_t des1; |
| 207 | uint32_t des2; /* not used by HW */ |
| 208 | uint32_t des3; |
| 209 | } FTGMAC100Desc; |
| 210 | |
Cédric Le Goater | 55efb36 | 2020-01-30 16:02:02 +0000 | [diff] [blame] | 211 | #define FTGMAC100_DESC_ALIGNMENT 16 |
| 212 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 213 | /* |
| 214 | * Specific RTL8211E MII Registers |
| 215 | */ |
| 216 | #define RTL8211E_MII_PHYCR 16 /* PHY Specific Control */ |
| 217 | #define RTL8211E_MII_PHYSR 17 /* PHY Specific Status */ |
| 218 | #define RTL8211E_MII_INER 18 /* Interrupt Enable */ |
| 219 | #define RTL8211E_MII_INSR 19 /* Interrupt Status */ |
| 220 | #define RTL8211E_MII_RXERC 24 /* Receive Error Counter */ |
| 221 | #define RTL8211E_MII_LDPSR 27 /* Link Down Power Saving */ |
| 222 | #define RTL8211E_MII_EPAGSR 30 /* Extension Page Select */ |
| 223 | #define RTL8211E_MII_PAGSEL 31 /* Page Select */ |
| 224 | |
| 225 | /* |
| 226 | * RTL8211E Interrupt Status |
| 227 | */ |
| 228 | #define PHY_INT_AUTONEG_ERROR (1 << 15) |
| 229 | #define PHY_INT_PAGE_RECV (1 << 12) |
| 230 | #define PHY_INT_AUTONEG_COMPLETE (1 << 11) |
| 231 | #define PHY_INT_LINK_STATUS (1 << 10) |
| 232 | #define PHY_INT_ERROR (1 << 9) |
| 233 | #define PHY_INT_DOWN (1 << 8) |
| 234 | #define PHY_INT_JABBER (1 << 0) |
| 235 | |
| 236 | /* |
| 237 | * Max frame size for the receiving buffer |
| 238 | */ |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 239 | #define FTGMAC100_MAX_FRAME_SIZE 9220 |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 240 | |
| 241 | /* Limits depending on the type of the frame |
| 242 | * |
| 243 | * 9216 for Jumbo frames (+ 4 for VLAN) |
| 244 | * 1518 for other frames (+ 4 for VLAN) |
| 245 | */ |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 246 | static int ftgmac100_max_frame_size(FTGMAC100State *s, uint16_t proto) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 247 | { |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 248 | int max = (s->maccr & FTGMAC100_MACCR_JUMBO_LF ? 9216 : 1518); |
| 249 | |
| 250 | return max + (proto == ETH_P_VLAN ? 4 : 0); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | static void ftgmac100_update_irq(FTGMAC100State *s) |
| 254 | { |
| 255 | qemu_set_irq(s->irq, s->isr & s->ier); |
| 256 | } |
| 257 | |
| 258 | /* |
| 259 | * The MII phy could raise a GPIO to the processor which in turn |
| 260 | * could be handled as an interrpt by the OS. |
| 261 | * For now we don't handle any GPIO/interrupt line, so the OS will |
| 262 | * have to poll for the PHY status. |
| 263 | */ |
| 264 | static void phy_update_irq(FTGMAC100State *s) |
| 265 | { |
| 266 | ftgmac100_update_irq(s); |
| 267 | } |
| 268 | |
| 269 | static void phy_update_link(FTGMAC100State *s) |
| 270 | { |
| 271 | /* Autonegotiation status mirrors link status. */ |
| 272 | if (qemu_get_queue(s->nic)->link_down) { |
| 273 | s->phy_status &= ~(MII_BMSR_LINK_ST | MII_BMSR_AN_COMP); |
| 274 | s->phy_int |= PHY_INT_DOWN; |
| 275 | } else { |
| 276 | s->phy_status |= (MII_BMSR_LINK_ST | MII_BMSR_AN_COMP); |
| 277 | s->phy_int |= PHY_INT_AUTONEG_COMPLETE; |
| 278 | } |
| 279 | phy_update_irq(s); |
| 280 | } |
| 281 | |
| 282 | static void ftgmac100_set_link(NetClientState *nc) |
| 283 | { |
| 284 | phy_update_link(FTGMAC100(qemu_get_nic_opaque(nc))); |
| 285 | } |
| 286 | |
| 287 | static void phy_reset(FTGMAC100State *s) |
| 288 | { |
| 289 | s->phy_status = (MII_BMSR_100TX_FD | MII_BMSR_100TX_HD | MII_BMSR_10T_FD | |
| 290 | MII_BMSR_10T_HD | MII_BMSR_EXTSTAT | MII_BMSR_MFPS | |
| 291 | MII_BMSR_AN_COMP | MII_BMSR_AUTONEG | MII_BMSR_LINK_ST | |
| 292 | MII_BMSR_EXTCAP); |
| 293 | s->phy_control = (MII_BMCR_AUTOEN | MII_BMCR_FD | MII_BMCR_SPEED1000); |
| 294 | s->phy_advertise = (MII_ANAR_PAUSE_ASYM | MII_ANAR_PAUSE | MII_ANAR_TXFD | |
| 295 | MII_ANAR_TX | MII_ANAR_10FD | MII_ANAR_10 | |
| 296 | MII_ANAR_CSMACD); |
| 297 | s->phy_int_mask = 0; |
| 298 | s->phy_int = 0; |
| 299 | } |
| 300 | |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 301 | static uint16_t do_phy_read(FTGMAC100State *s, uint8_t reg) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 302 | { |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 303 | uint16_t val; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 304 | |
| 305 | switch (reg) { |
| 306 | case MII_BMCR: /* Basic Control */ |
| 307 | val = s->phy_control; |
| 308 | break; |
| 309 | case MII_BMSR: /* Basic Status */ |
| 310 | val = s->phy_status; |
| 311 | break; |
| 312 | case MII_PHYID1: /* ID1 */ |
| 313 | val = RTL8211E_PHYID1; |
| 314 | break; |
| 315 | case MII_PHYID2: /* ID2 */ |
| 316 | val = RTL8211E_PHYID2; |
| 317 | break; |
| 318 | case MII_ANAR: /* Auto-neg advertisement */ |
| 319 | val = s->phy_advertise; |
| 320 | break; |
| 321 | case MII_ANLPAR: /* Auto-neg Link Partner Ability */ |
| 322 | val = (MII_ANLPAR_ACK | MII_ANLPAR_PAUSE | MII_ANLPAR_TXFD | |
| 323 | MII_ANLPAR_TX | MII_ANLPAR_10FD | MII_ANLPAR_10 | |
| 324 | MII_ANLPAR_CSMACD); |
| 325 | break; |
| 326 | case MII_ANER: /* Auto-neg Expansion */ |
| 327 | val = MII_ANER_NWAY; |
| 328 | break; |
| 329 | case MII_CTRL1000: /* 1000BASE-T control */ |
| 330 | val = (MII_CTRL1000_HALF | MII_CTRL1000_FULL); |
| 331 | break; |
| 332 | case MII_STAT1000: /* 1000BASE-T status */ |
| 333 | val = MII_STAT1000_FULL; |
| 334 | break; |
| 335 | case RTL8211E_MII_INSR: /* Interrupt status. */ |
| 336 | val = s->phy_int; |
| 337 | s->phy_int = 0; |
| 338 | phy_update_irq(s); |
| 339 | break; |
| 340 | case RTL8211E_MII_INER: /* Interrupt enable */ |
| 341 | val = s->phy_int_mask; |
| 342 | break; |
| 343 | case RTL8211E_MII_PHYCR: |
| 344 | case RTL8211E_MII_PHYSR: |
| 345 | case RTL8211E_MII_RXERC: |
| 346 | case RTL8211E_MII_LDPSR: |
| 347 | case RTL8211E_MII_EPAGSR: |
| 348 | case RTL8211E_MII_PAGSEL: |
| 349 | qemu_log_mask(LOG_UNIMP, "%s: reg %d not implemented\n", |
| 350 | __func__, reg); |
| 351 | val = 0; |
| 352 | break; |
| 353 | default: |
| 354 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset %d\n", |
| 355 | __func__, reg); |
| 356 | val = 0; |
| 357 | break; |
| 358 | } |
| 359 | |
| 360 | return val; |
| 361 | } |
| 362 | |
| 363 | #define MII_BMCR_MASK (MII_BMCR_LOOPBACK | MII_BMCR_SPEED100 | \ |
| 364 | MII_BMCR_SPEED | MII_BMCR_AUTOEN | MII_BMCR_PDOWN | \ |
| 365 | MII_BMCR_FD | MII_BMCR_CTST) |
| 366 | #define MII_ANAR_MASK 0x2d7f |
| 367 | |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 368 | static void do_phy_write(FTGMAC100State *s, uint8_t reg, uint16_t val) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 369 | { |
| 370 | switch (reg) { |
| 371 | case MII_BMCR: /* Basic Control */ |
| 372 | if (val & MII_BMCR_RESET) { |
| 373 | phy_reset(s); |
| 374 | } else { |
| 375 | s->phy_control = val & MII_BMCR_MASK; |
| 376 | /* Complete autonegotiation immediately. */ |
| 377 | if (val & MII_BMCR_AUTOEN) { |
| 378 | s->phy_status |= MII_BMSR_AN_COMP; |
| 379 | } |
| 380 | } |
| 381 | break; |
| 382 | case MII_ANAR: /* Auto-neg advertisement */ |
| 383 | s->phy_advertise = (val & MII_ANAR_MASK) | MII_ANAR_TX; |
| 384 | break; |
| 385 | case RTL8211E_MII_INER: /* Interrupt enable */ |
| 386 | s->phy_int_mask = val & 0xff; |
| 387 | phy_update_irq(s); |
| 388 | break; |
| 389 | case RTL8211E_MII_PHYCR: |
| 390 | case RTL8211E_MII_PHYSR: |
| 391 | case RTL8211E_MII_RXERC: |
| 392 | case RTL8211E_MII_LDPSR: |
| 393 | case RTL8211E_MII_EPAGSR: |
| 394 | case RTL8211E_MII_PAGSEL: |
| 395 | qemu_log_mask(LOG_UNIMP, "%s: reg %d not implemented\n", |
| 396 | __func__, reg); |
| 397 | break; |
| 398 | default: |
| 399 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset %d\n", |
| 400 | __func__, reg); |
| 401 | break; |
| 402 | } |
| 403 | } |
| 404 | |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 405 | static void do_phy_new_ctl(FTGMAC100State *s) |
| 406 | { |
| 407 | uint8_t reg; |
| 408 | uint16_t data; |
| 409 | |
| 410 | if (!(s->phycr & FTGMAC100_PHYCR_NEW_ST_22)) { |
| 411 | qemu_log_mask(LOG_UNIMP, "%s: unsupported ST code\n", __func__); |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | /* Nothing to do */ |
| 416 | if (!(s->phycr & FTGMAC100_PHYCR_NEW_FIRE)) { |
| 417 | return; |
| 418 | } |
| 419 | |
| 420 | reg = FTGMAC100_PHYCR_NEW_REG(s->phycr); |
| 421 | data = FTGMAC100_PHYCR_NEW_DATA(s->phycr); |
| 422 | |
| 423 | switch (FTGMAC100_PHYCR_NEW_OP(s->phycr)) { |
| 424 | case FTGMAC100_PHYCR_NEW_OP_WRITE: |
| 425 | do_phy_write(s, reg, data); |
| 426 | break; |
| 427 | case FTGMAC100_PHYCR_NEW_OP_READ: |
| 428 | s->phydata = do_phy_read(s, reg) & 0xffff; |
| 429 | break; |
| 430 | default: |
| 431 | qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid OP code %08x\n", |
| 432 | __func__, s->phycr); |
| 433 | } |
| 434 | |
| 435 | s->phycr &= ~FTGMAC100_PHYCR_NEW_FIRE; |
| 436 | } |
| 437 | |
| 438 | static void do_phy_ctl(FTGMAC100State *s) |
| 439 | { |
| 440 | uint8_t reg = FTGMAC100_PHYCR_REG(s->phycr); |
| 441 | |
| 442 | if (s->phycr & FTGMAC100_PHYCR_MIIWR) { |
| 443 | do_phy_write(s, reg, s->phydata & 0xffff); |
| 444 | s->phycr &= ~FTGMAC100_PHYCR_MIIWR; |
| 445 | } else if (s->phycr & FTGMAC100_PHYCR_MIIRD) { |
| 446 | s->phydata = do_phy_read(s, reg) << 16; |
| 447 | s->phycr &= ~FTGMAC100_PHYCR_MIIRD; |
| 448 | } else { |
| 449 | qemu_log_mask(LOG_GUEST_ERROR, "%s: no OP code %08x\n", |
| 450 | __func__, s->phycr); |
| 451 | } |
| 452 | } |
| 453 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 454 | static int ftgmac100_read_bd(FTGMAC100Desc *bd, dma_addr_t addr) |
| 455 | { |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 456 | if (dma_memory_read(&address_space_memory, addr, |
| 457 | bd, sizeof(*bd), MEMTXATTRS_UNSPECIFIED)) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 458 | qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to read descriptor @ 0x%" |
| 459 | HWADDR_PRIx "\n", __func__, addr); |
| 460 | return -1; |
| 461 | } |
| 462 | bd->des0 = le32_to_cpu(bd->des0); |
| 463 | bd->des1 = le32_to_cpu(bd->des1); |
| 464 | bd->des2 = le32_to_cpu(bd->des2); |
| 465 | bd->des3 = le32_to_cpu(bd->des3); |
| 466 | return 0; |
| 467 | } |
| 468 | |
| 469 | static int ftgmac100_write_bd(FTGMAC100Desc *bd, dma_addr_t addr) |
| 470 | { |
| 471 | FTGMAC100Desc lebd; |
| 472 | |
| 473 | lebd.des0 = cpu_to_le32(bd->des0); |
| 474 | lebd.des1 = cpu_to_le32(bd->des1); |
| 475 | lebd.des2 = cpu_to_le32(bd->des2); |
| 476 | lebd.des3 = cpu_to_le32(bd->des3); |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 477 | if (dma_memory_write(&address_space_memory, addr, |
| 478 | &lebd, sizeof(lebd), MEMTXATTRS_UNSPECIFIED)) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 479 | qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to write descriptor @ 0x%" |
| 480 | HWADDR_PRIx "\n", __func__, addr); |
| 481 | return -1; |
| 482 | } |
| 483 | return 0; |
| 484 | } |
| 485 | |
Cédric Le Goater | c2ab73f | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 486 | static int ftgmac100_insert_vlan(FTGMAC100State *s, int frame_size, |
| 487 | uint8_t vlan_tci) |
| 488 | { |
| 489 | uint8_t *vlan_hdr = s->frame + (ETH_ALEN * 2); |
| 490 | uint8_t *payload = vlan_hdr + sizeof(struct vlan_header); |
| 491 | |
| 492 | if (frame_size < sizeof(struct eth_header)) { |
| 493 | qemu_log_mask(LOG_GUEST_ERROR, |
| 494 | "%s: frame too small for VLAN insertion : %d bytes\n", |
| 495 | __func__, frame_size); |
| 496 | s->isr |= FTGMAC100_INT_XPKT_LOST; |
| 497 | goto out; |
| 498 | } |
| 499 | |
| 500 | if (frame_size + sizeof(struct vlan_header) > sizeof(s->frame)) { |
| 501 | qemu_log_mask(LOG_GUEST_ERROR, |
| 502 | "%s: frame too big : %d bytes\n", |
| 503 | __func__, frame_size); |
| 504 | s->isr |= FTGMAC100_INT_XPKT_LOST; |
| 505 | frame_size -= sizeof(struct vlan_header); |
| 506 | } |
| 507 | |
| 508 | memmove(payload, vlan_hdr, frame_size - (ETH_ALEN * 2)); |
| 509 | stw_be_p(vlan_hdr, ETH_P_VLAN); |
| 510 | stw_be_p(vlan_hdr + 2, vlan_tci); |
| 511 | frame_size += sizeof(struct vlan_header); |
| 512 | |
| 513 | out: |
| 514 | return frame_size; |
| 515 | } |
| 516 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 517 | static void ftgmac100_do_tx(FTGMAC100State *s, uint32_t tx_ring, |
| 518 | uint32_t tx_descriptor) |
| 519 | { |
| 520 | int frame_size = 0; |
| 521 | uint8_t *ptr = s->frame; |
| 522 | uint32_t addr = tx_descriptor; |
| 523 | uint32_t flags = 0; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 524 | |
| 525 | while (1) { |
| 526 | FTGMAC100Desc bd; |
| 527 | int len; |
| 528 | |
| 529 | if (ftgmac100_read_bd(&bd, addr) || |
| 530 | ((bd.des0 & FTGMAC100_TXDES0_TXDMA_OWN) == 0)) { |
| 531 | /* Run out of descriptors to transmit. */ |
| 532 | s->isr |= FTGMAC100_INT_NO_NPTXBUF; |
| 533 | break; |
| 534 | } |
| 535 | |
| 536 | /* record transmit flags as they are valid only on the first |
| 537 | * segment */ |
| 538 | if (bd.des0 & FTGMAC100_TXDES0_FTS) { |
| 539 | flags = bd.des1; |
| 540 | } |
| 541 | |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 542 | len = FTGMAC100_TXDES0_TXBUF_SIZE(bd.des0); |
Cédric Le Goater | af6d66e | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 543 | if (!len) { |
| 544 | /* |
| 545 | * 0 is an invalid size, however the HW does not raise any |
| 546 | * interrupt. Flag an error because the guest is buggy. |
| 547 | */ |
| 548 | qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid segment size\n", |
| 549 | __func__); |
| 550 | } |
| 551 | |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 552 | if (frame_size + len > sizeof(s->frame)) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 553 | qemu_log_mask(LOG_GUEST_ERROR, "%s: frame too big : %d bytes\n", |
| 554 | __func__, len); |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 555 | s->isr |= FTGMAC100_INT_XPKT_LOST; |
| 556 | len = sizeof(s->frame) - frame_size; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 557 | } |
| 558 | |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 559 | if (dma_memory_read(&address_space_memory, bd.des3, |
| 560 | ptr, len, MEMTXATTRS_UNSPECIFIED)) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 561 | qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to read packet @ 0x%x\n", |
| 562 | __func__, bd.des3); |
Cédric Le Goater | 9c30f09 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 563 | s->isr |= FTGMAC100_INT_AHB_ERR; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 564 | break; |
| 565 | } |
| 566 | |
| 567 | ptr += len; |
| 568 | frame_size += len; |
| 569 | if (bd.des0 & FTGMAC100_TXDES0_LTS) { |
Bin Meng | f574633 | 2020-12-11 17:35:12 +0800 | [diff] [blame] | 570 | int csum = 0; |
Cédric Le Goater | c2ab73f | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 571 | |
| 572 | /* Check for VLAN */ |
| 573 | if (flags & FTGMAC100_TXDES1_INS_VLANTAG && |
| 574 | be16_to_cpu(PKT_GET_ETH_HDR(s->frame)->h_proto) != ETH_P_VLAN) { |
| 575 | frame_size = ftgmac100_insert_vlan(s, frame_size, |
| 576 | FTGMAC100_TXDES1_VLANTAG_CI(flags)); |
| 577 | } |
| 578 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 579 | if (flags & FTGMAC100_TXDES1_IP_CHKSUM) { |
Bin Meng | f574633 | 2020-12-11 17:35:12 +0800 | [diff] [blame] | 580 | csum |= CSUM_IP; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 581 | } |
Bin Meng | f574633 | 2020-12-11 17:35:12 +0800 | [diff] [blame] | 582 | if (flags & FTGMAC100_TXDES1_TCP_CHKSUM) { |
| 583 | csum |= CSUM_TCP; |
| 584 | } |
| 585 | if (flags & FTGMAC100_TXDES1_UDP_CHKSUM) { |
| 586 | csum |= CSUM_UDP; |
| 587 | } |
| 588 | if (csum) { |
| 589 | net_checksum_calculate(s->frame, frame_size, csum); |
| 590 | } |
| 591 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 592 | /* Last buffer in frame. */ |
| 593 | qemu_send_packet(qemu_get_queue(s->nic), s->frame, frame_size); |
| 594 | ptr = s->frame; |
| 595 | frame_size = 0; |
Cédric Le Goater | dcf5137 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 596 | s->isr |= FTGMAC100_INT_XPKT_ETH; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 597 | } |
| 598 | |
| 599 | if (flags & FTGMAC100_TXDES1_TX2FIC) { |
| 600 | s->isr |= FTGMAC100_INT_XPKT_FIFO; |
| 601 | } |
| 602 | bd.des0 &= ~FTGMAC100_TXDES0_TXDMA_OWN; |
| 603 | |
| 604 | /* Write back the modified descriptor. */ |
| 605 | ftgmac100_write_bd(&bd, addr); |
| 606 | /* Advance to the next descriptor. */ |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 607 | if (bd.des0 & s->txdes0_edotr) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 608 | addr = tx_ring; |
| 609 | } else { |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 610 | addr += FTGMAC100_DBLAC_TXDES_SIZE(s->dblac); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 611 | } |
| 612 | } |
| 613 | |
| 614 | s->tx_descriptor = addr; |
| 615 | |
| 616 | ftgmac100_update_irq(s); |
| 617 | } |
| 618 | |
Philippe Mathieu-Daudé | b8c4b67 | 2020-03-05 18:56:49 +0100 | [diff] [blame] | 619 | static bool ftgmac100_can_receive(NetClientState *nc) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 620 | { |
| 621 | FTGMAC100State *s = FTGMAC100(qemu_get_nic_opaque(nc)); |
| 622 | FTGMAC100Desc bd; |
| 623 | |
| 624 | if ((s->maccr & (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN)) |
| 625 | != (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN)) { |
Philippe Mathieu-Daudé | b8c4b67 | 2020-03-05 18:56:49 +0100 | [diff] [blame] | 626 | return false; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 627 | } |
| 628 | |
| 629 | if (ftgmac100_read_bd(&bd, s->rx_descriptor)) { |
Philippe Mathieu-Daudé | b8c4b67 | 2020-03-05 18:56:49 +0100 | [diff] [blame] | 630 | return false; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 631 | } |
| 632 | return !(bd.des0 & FTGMAC100_RXDES0_RXPKT_RDY); |
| 633 | } |
| 634 | |
| 635 | /* |
| 636 | * This is purely informative. The HW can poll the RW (and RX) ring |
| 637 | * buffers for available descriptors but we don't need to trigger a |
| 638 | * timer for that in qemu. |
| 639 | */ |
| 640 | static uint32_t ftgmac100_rxpoll(FTGMAC100State *s) |
| 641 | { |
| 642 | /* Polling times : |
| 643 | * |
| 644 | * Speed TIME_SEL=0 TIME_SEL=1 |
| 645 | * |
| 646 | * 10 51.2 ms 819.2 ms |
| 647 | * 100 5.12 ms 81.92 ms |
| 648 | * 1000 1.024 ms 16.384 ms |
| 649 | */ |
| 650 | static const int div[] = { 20, 200, 1000 }; |
| 651 | |
| 652 | uint32_t cnt = 1024 * FTGMAC100_APTC_RXPOLL_CNT(s->aptcr); |
| 653 | uint32_t speed = (s->maccr & FTGMAC100_MACCR_FAST_MODE) ? 1 : 0; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 654 | |
| 655 | if (s->aptcr & FTGMAC100_APTC_RXPOLL_TIME_SEL) { |
| 656 | cnt <<= 4; |
| 657 | } |
| 658 | |
| 659 | if (s->maccr & FTGMAC100_MACCR_GIGA_MODE) { |
| 660 | speed = 2; |
| 661 | } |
| 662 | |
Laurent Vivier | 4a4ff4c | 2018-03-23 15:32:02 +0100 | [diff] [blame] | 663 | return cnt / div[speed]; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 664 | } |
| 665 | |
Cédric Le Goater | e0059c8 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 666 | static void ftgmac100_do_reset(FTGMAC100State *s, bool sw_reset) |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 667 | { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 668 | /* Reset the FTGMAC100 */ |
| 669 | s->isr = 0; |
| 670 | s->ier = 0; |
| 671 | s->rx_enabled = 0; |
| 672 | s->rx_ring = 0; |
| 673 | s->rbsr = 0x640; |
| 674 | s->rx_descriptor = 0; |
| 675 | s->tx_ring = 0; |
| 676 | s->tx_descriptor = 0; |
| 677 | s->math[0] = 0; |
| 678 | s->math[1] = 0; |
| 679 | s->itc = 0; |
| 680 | s->aptcr = 1; |
| 681 | s->dblac = 0x00022f00; |
| 682 | s->revr = 0; |
| 683 | s->fear1 = 0; |
| 684 | s->tpafcr = 0xf1; |
| 685 | |
Cédric Le Goater | e0059c8 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 686 | if (sw_reset) { |
| 687 | s->maccr &= FTGMAC100_MACCR_GIGA_MODE | FTGMAC100_MACCR_FAST_MODE; |
| 688 | } else { |
| 689 | s->maccr = 0; |
| 690 | } |
| 691 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 692 | s->phycr = 0; |
| 693 | s->phydata = 0; |
| 694 | s->fcr = 0x400; |
| 695 | |
| 696 | /* and the PHY */ |
| 697 | phy_reset(s); |
| 698 | } |
| 699 | |
Cédric Le Goater | e0059c8 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 700 | static void ftgmac100_reset(DeviceState *d) |
| 701 | { |
| 702 | ftgmac100_do_reset(FTGMAC100(d), false); |
| 703 | } |
| 704 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 705 | static uint64_t ftgmac100_read(void *opaque, hwaddr addr, unsigned size) |
| 706 | { |
| 707 | FTGMAC100State *s = FTGMAC100(opaque); |
| 708 | |
| 709 | switch (addr & 0xff) { |
| 710 | case FTGMAC100_ISR: |
| 711 | return s->isr; |
| 712 | case FTGMAC100_IER: |
| 713 | return s->ier; |
| 714 | case FTGMAC100_MAC_MADR: |
| 715 | return (s->conf.macaddr.a[0] << 8) | s->conf.macaddr.a[1]; |
| 716 | case FTGMAC100_MAC_LADR: |
| 717 | return ((uint32_t) s->conf.macaddr.a[2] << 24) | |
| 718 | (s->conf.macaddr.a[3] << 16) | (s->conf.macaddr.a[4] << 8) | |
| 719 | s->conf.macaddr.a[5]; |
| 720 | case FTGMAC100_MATH0: |
| 721 | return s->math[0]; |
| 722 | case FTGMAC100_MATH1: |
| 723 | return s->math[1]; |
Cédric Le Goater | 3916147 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 724 | case FTGMAC100_RXR_BADR: |
| 725 | return s->rx_ring; |
| 726 | case FTGMAC100_NPTXR_BADR: |
| 727 | return s->tx_ring; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 728 | case FTGMAC100_ITC: |
| 729 | return s->itc; |
| 730 | case FTGMAC100_DBLAC: |
| 731 | return s->dblac; |
| 732 | case FTGMAC100_REVR: |
| 733 | return s->revr; |
| 734 | case FTGMAC100_FEAR1: |
| 735 | return s->fear1; |
| 736 | case FTGMAC100_TPAFCR: |
| 737 | return s->tpafcr; |
| 738 | case FTGMAC100_FCR: |
| 739 | return s->fcr; |
| 740 | case FTGMAC100_MACCR: |
| 741 | return s->maccr; |
| 742 | case FTGMAC100_PHYCR: |
| 743 | return s->phycr; |
| 744 | case FTGMAC100_PHYDATA: |
| 745 | return s->phydata; |
| 746 | |
| 747 | /* We might want to support these one day */ |
| 748 | case FTGMAC100_HPTXPD: /* High Priority Transmit Poll Demand */ |
| 749 | case FTGMAC100_HPTXR_BADR: /* High Priority Transmit Ring Base Address */ |
| 750 | case FTGMAC100_MACSR: /* MAC Status Register (MACSR) */ |
| 751 | qemu_log_mask(LOG_UNIMP, "%s: read to unimplemented register 0x%" |
| 752 | HWADDR_PRIx "\n", __func__, addr); |
| 753 | return 0; |
| 754 | default: |
| 755 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset 0x%" |
| 756 | HWADDR_PRIx "\n", __func__, addr); |
| 757 | return 0; |
| 758 | } |
| 759 | } |
| 760 | |
| 761 | static void ftgmac100_write(void *opaque, hwaddr addr, |
| 762 | uint64_t value, unsigned size) |
| 763 | { |
| 764 | FTGMAC100State *s = FTGMAC100(opaque); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 765 | |
| 766 | switch (addr & 0xff) { |
| 767 | case FTGMAC100_ISR: /* Interrupt status */ |
| 768 | s->isr &= ~value; |
| 769 | break; |
| 770 | case FTGMAC100_IER: /* Interrupt control */ |
| 771 | s->ier = value; |
| 772 | break; |
| 773 | case FTGMAC100_MAC_MADR: /* MAC */ |
| 774 | s->conf.macaddr.a[0] = value >> 8; |
| 775 | s->conf.macaddr.a[1] = value; |
| 776 | break; |
| 777 | case FTGMAC100_MAC_LADR: |
| 778 | s->conf.macaddr.a[2] = value >> 24; |
| 779 | s->conf.macaddr.a[3] = value >> 16; |
| 780 | s->conf.macaddr.a[4] = value >> 8; |
| 781 | s->conf.macaddr.a[5] = value; |
| 782 | break; |
| 783 | case FTGMAC100_MATH0: /* Multicast Address Hash Table 0 */ |
| 784 | s->math[0] = value; |
| 785 | break; |
| 786 | case FTGMAC100_MATH1: /* Multicast Address Hash Table 1 */ |
| 787 | s->math[1] = value; |
| 788 | break; |
| 789 | case FTGMAC100_ITC: /* TODO: Interrupt Timer Control */ |
| 790 | s->itc = value; |
| 791 | break; |
| 792 | case FTGMAC100_RXR_BADR: /* Ring buffer address */ |
Cédric Le Goater | 55efb36 | 2020-01-30 16:02:02 +0000 | [diff] [blame] | 793 | if (!QEMU_IS_ALIGNED(value, FTGMAC100_DESC_ALIGNMENT)) { |
| 794 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad RX buffer alignment 0x%" |
| 795 | HWADDR_PRIx "\n", __func__, value); |
| 796 | return; |
| 797 | } |
| 798 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 799 | s->rx_ring = value; |
| 800 | s->rx_descriptor = s->rx_ring; |
| 801 | break; |
| 802 | |
| 803 | case FTGMAC100_RBSR: /* DMA buffer size */ |
| 804 | s->rbsr = value; |
| 805 | break; |
| 806 | |
| 807 | case FTGMAC100_NPTXR_BADR: /* Transmit buffer address */ |
Cédric Le Goater | 55efb36 | 2020-01-30 16:02:02 +0000 | [diff] [blame] | 808 | if (!QEMU_IS_ALIGNED(value, FTGMAC100_DESC_ALIGNMENT)) { |
| 809 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad TX buffer alignment 0x%" |
| 810 | HWADDR_PRIx "\n", __func__, value); |
| 811 | return; |
| 812 | } |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 813 | s->tx_ring = value; |
| 814 | s->tx_descriptor = s->tx_ring; |
| 815 | break; |
| 816 | |
| 817 | case FTGMAC100_NPTXPD: /* Trigger transmit */ |
| 818 | if ((s->maccr & (FTGMAC100_MACCR_TXDMA_EN | FTGMAC100_MACCR_TXMAC_EN)) |
| 819 | == (FTGMAC100_MACCR_TXDMA_EN | FTGMAC100_MACCR_TXMAC_EN)) { |
| 820 | /* TODO: high priority tx ring */ |
| 821 | ftgmac100_do_tx(s, s->tx_ring, s->tx_descriptor); |
| 822 | } |
| 823 | if (ftgmac100_can_receive(qemu_get_queue(s->nic))) { |
| 824 | qemu_flush_queued_packets(qemu_get_queue(s->nic)); |
| 825 | } |
| 826 | break; |
| 827 | |
| 828 | case FTGMAC100_RXPD: /* Receive Poll Demand Register */ |
| 829 | if (ftgmac100_can_receive(qemu_get_queue(s->nic))) { |
| 830 | qemu_flush_queued_packets(qemu_get_queue(s->nic)); |
| 831 | } |
| 832 | break; |
| 833 | |
| 834 | case FTGMAC100_APTC: /* Automatic polling */ |
| 835 | s->aptcr = value; |
| 836 | |
| 837 | if (FTGMAC100_APTC_RXPOLL_CNT(s->aptcr)) { |
| 838 | ftgmac100_rxpoll(s); |
| 839 | } |
| 840 | |
| 841 | if (FTGMAC100_APTC_TXPOLL_CNT(s->aptcr)) { |
| 842 | qemu_log_mask(LOG_UNIMP, "%s: no transmit polling\n", __func__); |
| 843 | } |
| 844 | break; |
| 845 | |
| 846 | case FTGMAC100_MACCR: /* MAC Device control */ |
| 847 | s->maccr = value; |
| 848 | if (value & FTGMAC100_MACCR_SW_RST) { |
Cédric Le Goater | e0059c8 | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 849 | ftgmac100_do_reset(s, true); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 850 | } |
| 851 | |
| 852 | if (ftgmac100_can_receive(qemu_get_queue(s->nic))) { |
| 853 | qemu_flush_queued_packets(qemu_get_queue(s->nic)); |
| 854 | } |
| 855 | break; |
| 856 | |
| 857 | case FTGMAC100_PHYCR: /* PHY Device control */ |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 858 | s->phycr = value; |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 859 | if (s->revr & FTGMAC100_REVR_NEW_MDIO_INTERFACE) { |
| 860 | do_phy_new_ctl(s); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 861 | } else { |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 862 | do_phy_ctl(s); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 863 | } |
| 864 | break; |
| 865 | case FTGMAC100_PHYDATA: |
| 866 | s->phydata = value & 0xffff; |
| 867 | break; |
| 868 | case FTGMAC100_DBLAC: /* DMA Burst Length and Arbitration Control */ |
erik-smit | a134321 | 2020-06-28 16:26:59 +0200 | [diff] [blame] | 869 | if (FTGMAC100_DBLAC_TXDES_SIZE(value) < sizeof(FTGMAC100Desc)) { |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 870 | qemu_log_mask(LOG_GUEST_ERROR, |
erik-smit | a134321 | 2020-06-28 16:26:59 +0200 | [diff] [blame] | 871 | "%s: transmit descriptor too small: %" PRIx64 |
| 872 | " bytes\n", __func__, |
| 873 | FTGMAC100_DBLAC_TXDES_SIZE(value)); |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 874 | break; |
| 875 | } |
erik-smit | a134321 | 2020-06-28 16:26:59 +0200 | [diff] [blame] | 876 | if (FTGMAC100_DBLAC_RXDES_SIZE(value) < sizeof(FTGMAC100Desc)) { |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 877 | qemu_log_mask(LOG_GUEST_ERROR, |
erik-smit | a134321 | 2020-06-28 16:26:59 +0200 | [diff] [blame] | 878 | "%s: receive descriptor too small : %" PRIx64 |
| 879 | " bytes\n", __func__, |
| 880 | FTGMAC100_DBLAC_RXDES_SIZE(value)); |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 881 | break; |
| 882 | } |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 883 | s->dblac = value; |
| 884 | break; |
| 885 | case FTGMAC100_REVR: /* Feature Register */ |
Cédric Le Goater | f16c845 | 2019-01-21 10:23:11 +0000 | [diff] [blame] | 886 | s->revr = value; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 887 | break; |
| 888 | case FTGMAC100_FEAR1: /* Feature Register 1 */ |
| 889 | s->fear1 = value; |
| 890 | break; |
| 891 | case FTGMAC100_TPAFCR: /* Transmit Priority Arbitration and FIFO Control */ |
| 892 | s->tpafcr = value; |
| 893 | break; |
| 894 | case FTGMAC100_FCR: /* Flow Control */ |
| 895 | s->fcr = value; |
| 896 | break; |
| 897 | |
| 898 | case FTGMAC100_HPTXPD: /* High Priority Transmit Poll Demand */ |
| 899 | case FTGMAC100_HPTXR_BADR: /* High Priority Transmit Ring Base Address */ |
| 900 | case FTGMAC100_MACSR: /* MAC Status Register (MACSR) */ |
| 901 | qemu_log_mask(LOG_UNIMP, "%s: write to unimplemented register 0x%" |
| 902 | HWADDR_PRIx "\n", __func__, addr); |
| 903 | break; |
| 904 | default: |
| 905 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset 0x%" |
| 906 | HWADDR_PRIx "\n", __func__, addr); |
| 907 | break; |
| 908 | } |
| 909 | |
| 910 | ftgmac100_update_irq(s); |
| 911 | } |
| 912 | |
| 913 | static int ftgmac100_filter(FTGMAC100State *s, const uint8_t *buf, size_t len) |
| 914 | { |
| 915 | unsigned mcast_idx; |
| 916 | |
| 917 | if (s->maccr & FTGMAC100_MACCR_RX_ALL) { |
| 918 | return 1; |
| 919 | } |
| 920 | |
| 921 | switch (get_eth_packet_type(PKT_GET_ETH_HDR(buf))) { |
| 922 | case ETH_PKT_BCAST: |
| 923 | if (!(s->maccr & FTGMAC100_MACCR_RX_BROADPKT)) { |
| 924 | return 0; |
| 925 | } |
| 926 | break; |
| 927 | case ETH_PKT_MCAST: |
| 928 | if (!(s->maccr & FTGMAC100_MACCR_RX_MULTIPKT)) { |
| 929 | if (!(s->maccr & FTGMAC100_MACCR_HT_MULTI_EN)) { |
| 930 | return 0; |
| 931 | } |
| 932 | |
Cédric Le Goater | 44effc1 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 933 | mcast_idx = net_crc32_le(buf, ETH_ALEN); |
| 934 | mcast_idx = (~(mcast_idx >> 2)) & 0x3f; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 935 | if (!(s->math[mcast_idx / 32] & (1 << (mcast_idx % 32)))) { |
| 936 | return 0; |
| 937 | } |
| 938 | } |
| 939 | break; |
| 940 | case ETH_PKT_UCAST: |
| 941 | if (memcmp(s->conf.macaddr.a, buf, 6)) { |
| 942 | return 0; |
| 943 | } |
| 944 | break; |
| 945 | } |
| 946 | |
| 947 | return 1; |
| 948 | } |
| 949 | |
| 950 | static ssize_t ftgmac100_receive(NetClientState *nc, const uint8_t *buf, |
| 951 | size_t len) |
| 952 | { |
| 953 | FTGMAC100State *s = FTGMAC100(qemu_get_nic_opaque(nc)); |
| 954 | FTGMAC100Desc bd; |
| 955 | uint32_t flags = 0; |
| 956 | uint32_t addr; |
| 957 | uint32_t crc; |
| 958 | uint32_t buf_addr; |
| 959 | uint8_t *crc_ptr; |
| 960 | uint32_t buf_len; |
| 961 | size_t size = len; |
| 962 | uint32_t first = FTGMAC100_RXDES0_FRS; |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 963 | uint16_t proto = be16_to_cpu(PKT_GET_ETH_HDR(buf)->h_proto); |
| 964 | int max_frame_size = ftgmac100_max_frame_size(s, proto); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 965 | |
| 966 | if ((s->maccr & (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN)) |
| 967 | != (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN)) { |
| 968 | return -1; |
| 969 | } |
| 970 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 971 | if (!ftgmac100_filter(s, buf, size)) { |
| 972 | return size; |
| 973 | } |
| 974 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 975 | crc = cpu_to_be32(crc32(~0, buf, size)); |
Stephen Longfield | 036e98e | 2023-02-07 09:02:04 +0100 | [diff] [blame] | 976 | /* Increase size by 4, loop below reads the last 4 bytes from crc_ptr. */ |
| 977 | size += 4; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 978 | crc_ptr = (uint8_t *) &crc; |
| 979 | |
| 980 | /* Huge frames are truncated. */ |
| 981 | if (size > max_frame_size) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 982 | qemu_log_mask(LOG_GUEST_ERROR, "%s: frame too big : %zd bytes\n", |
| 983 | __func__, size); |
Cédric Le Goater | cd679a7 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 984 | size = max_frame_size; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 985 | flags |= FTGMAC100_RXDES0_FTL; |
| 986 | } |
| 987 | |
| 988 | switch (get_eth_packet_type(PKT_GET_ETH_HDR(buf))) { |
| 989 | case ETH_PKT_BCAST: |
| 990 | flags |= FTGMAC100_RXDES0_BROADCAST; |
| 991 | break; |
| 992 | case ETH_PKT_MCAST: |
| 993 | flags |= FTGMAC100_RXDES0_MULTICAST; |
| 994 | break; |
| 995 | case ETH_PKT_UCAST: |
| 996 | break; |
| 997 | } |
| 998 | |
Cédric Le Goater | cf9f48d | 2020-09-01 14:21:50 +0200 | [diff] [blame] | 999 | s->isr |= FTGMAC100_INT_RPKT_FIFO; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1000 | addr = s->rx_descriptor; |
| 1001 | while (size > 0) { |
| 1002 | if (!ftgmac100_can_receive(nc)) { |
| 1003 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Unexpected packet\n", __func__); |
| 1004 | return -1; |
| 1005 | } |
| 1006 | |
| 1007 | if (ftgmac100_read_bd(&bd, addr) || |
| 1008 | (bd.des0 & FTGMAC100_RXDES0_RXPKT_RDY)) { |
| 1009 | /* No descriptors available. Bail out. */ |
| 1010 | qemu_log_mask(LOG_GUEST_ERROR, "%s: Lost end of frame\n", |
| 1011 | __func__); |
| 1012 | s->isr |= FTGMAC100_INT_NO_RXBUF; |
| 1013 | break; |
| 1014 | } |
| 1015 | buf_len = (size <= s->rbsr) ? size : s->rbsr; |
| 1016 | bd.des0 |= buf_len & 0x3fff; |
| 1017 | size -= buf_len; |
| 1018 | |
| 1019 | /* The last 4 bytes are the CRC. */ |
| 1020 | if (size < 4) { |
| 1021 | buf_len += size - 4; |
| 1022 | } |
| 1023 | buf_addr = bd.des3; |
Cédric Le Goater | 8576b12 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 1024 | if (first && proto == ETH_P_VLAN && buf_len >= 18) { |
| 1025 | bd.des1 = lduw_be_p(buf + 14) | FTGMAC100_RXDES1_VLANTAG_AVAIL; |
| 1026 | |
| 1027 | if (s->maccr & FTGMAC100_MACCR_RM_VLAN) { |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 1028 | dma_memory_write(&address_space_memory, buf_addr, buf, 12, |
| 1029 | MEMTXATTRS_UNSPECIFIED); |
| 1030 | dma_memory_write(&address_space_memory, buf_addr + 12, |
| 1031 | buf + 16, buf_len - 16, |
| 1032 | MEMTXATTRS_UNSPECIFIED); |
Cédric Le Goater | 8576b12 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 1033 | } else { |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 1034 | dma_memory_write(&address_space_memory, buf_addr, buf, |
| 1035 | buf_len, MEMTXATTRS_UNSPECIFIED); |
Cédric Le Goater | 8576b12 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 1036 | } |
| 1037 | } else { |
| 1038 | bd.des1 = 0; |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 1039 | dma_memory_write(&address_space_memory, buf_addr, buf, buf_len, |
| 1040 | MEMTXATTRS_UNSPECIFIED); |
Cédric Le Goater | 8576b12 | 2018-06-08 13:15:32 +0100 | [diff] [blame] | 1041 | } |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1042 | buf += buf_len; |
| 1043 | if (size < 4) { |
| 1044 | dma_memory_write(&address_space_memory, buf_addr + buf_len, |
Philippe Mathieu-Daudé | ba06fe8 | 2020-09-03 10:08:29 +0200 | [diff] [blame] | 1045 | crc_ptr, 4 - size, MEMTXATTRS_UNSPECIFIED); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1046 | crc_ptr += 4 - size; |
| 1047 | } |
| 1048 | |
| 1049 | bd.des0 |= first | FTGMAC100_RXDES0_RXPKT_RDY; |
| 1050 | first = 0; |
| 1051 | if (size == 0) { |
| 1052 | /* Last buffer in frame. */ |
| 1053 | bd.des0 |= flags | FTGMAC100_RXDES0_LRS; |
| 1054 | s->isr |= FTGMAC100_INT_RPKT_BUF; |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1055 | } |
| 1056 | ftgmac100_write_bd(&bd, addr); |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 1057 | if (bd.des0 & s->rxdes0_edorr) { |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1058 | addr = s->rx_ring; |
| 1059 | } else { |
Erik Smit | d7a64d0 | 2020-06-16 10:32:29 +0100 | [diff] [blame] | 1060 | addr += FTGMAC100_DBLAC_RXDES_SIZE(s->dblac); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1061 | } |
| 1062 | } |
| 1063 | s->rx_descriptor = addr; |
| 1064 | |
| 1065 | ftgmac100_update_irq(s); |
| 1066 | return len; |
| 1067 | } |
| 1068 | |
| 1069 | static const MemoryRegionOps ftgmac100_ops = { |
| 1070 | .read = ftgmac100_read, |
| 1071 | .write = ftgmac100_write, |
| 1072 | .valid.min_access_size = 4, |
| 1073 | .valid.max_access_size = 4, |
| 1074 | .endianness = DEVICE_LITTLE_ENDIAN, |
| 1075 | }; |
| 1076 | |
| 1077 | static void ftgmac100_cleanup(NetClientState *nc) |
| 1078 | { |
| 1079 | FTGMAC100State *s = FTGMAC100(qemu_get_nic_opaque(nc)); |
| 1080 | |
| 1081 | s->nic = NULL; |
| 1082 | } |
| 1083 | |
| 1084 | static NetClientInfo net_ftgmac100_info = { |
| 1085 | .type = NET_CLIENT_DRIVER_NIC, |
| 1086 | .size = sizeof(NICState), |
| 1087 | .can_receive = ftgmac100_can_receive, |
| 1088 | .receive = ftgmac100_receive, |
| 1089 | .cleanup = ftgmac100_cleanup, |
| 1090 | .link_status_changed = ftgmac100_set_link, |
| 1091 | }; |
| 1092 | |
| 1093 | static void ftgmac100_realize(DeviceState *dev, Error **errp) |
| 1094 | { |
| 1095 | FTGMAC100State *s = FTGMAC100(dev); |
| 1096 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); |
| 1097 | |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 1098 | if (s->aspeed) { |
| 1099 | s->txdes0_edotr = FTGMAC100_TXDES0_EDOTR_ASPEED; |
| 1100 | s->rxdes0_edorr = FTGMAC100_RXDES0_EDORR_ASPEED; |
| 1101 | } else { |
| 1102 | s->txdes0_edotr = FTGMAC100_TXDES0_EDOTR; |
| 1103 | s->rxdes0_edorr = FTGMAC100_RXDES0_EDORR; |
| 1104 | } |
| 1105 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1106 | memory_region_init_io(&s->iomem, OBJECT(dev), &ftgmac100_ops, s, |
| 1107 | TYPE_FTGMAC100, 0x2000); |
| 1108 | sysbus_init_mmio(sbd, &s->iomem); |
| 1109 | sysbus_init_irq(sbd, &s->irq); |
| 1110 | qemu_macaddr_default_if_unset(&s->conf.macaddr); |
| 1111 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1112 | s->nic = qemu_new_nic(&net_ftgmac100_info, &s->conf, |
Philippe Mathieu-Daudé | 8e5c952 | 2020-05-12 09:00:20 +0200 | [diff] [blame] | 1113 | object_get_typename(OBJECT(dev)), dev->id, s); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1114 | qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1115 | } |
| 1116 | |
| 1117 | static const VMStateDescription vmstate_ftgmac100 = { |
| 1118 | .name = TYPE_FTGMAC100, |
| 1119 | .version_id = 1, |
| 1120 | .minimum_version_id = 1, |
| 1121 | .fields = (VMStateField[]) { |
| 1122 | VMSTATE_UINT32(irq_state, FTGMAC100State), |
| 1123 | VMSTATE_UINT32(isr, FTGMAC100State), |
| 1124 | VMSTATE_UINT32(ier, FTGMAC100State), |
| 1125 | VMSTATE_UINT32(rx_enabled, FTGMAC100State), |
| 1126 | VMSTATE_UINT32(rx_ring, FTGMAC100State), |
| 1127 | VMSTATE_UINT32(rbsr, FTGMAC100State), |
| 1128 | VMSTATE_UINT32(tx_ring, FTGMAC100State), |
| 1129 | VMSTATE_UINT32(rx_descriptor, FTGMAC100State), |
| 1130 | VMSTATE_UINT32(tx_descriptor, FTGMAC100State), |
| 1131 | VMSTATE_UINT32_ARRAY(math, FTGMAC100State, 2), |
| 1132 | VMSTATE_UINT32(itc, FTGMAC100State), |
| 1133 | VMSTATE_UINT32(aptcr, FTGMAC100State), |
| 1134 | VMSTATE_UINT32(dblac, FTGMAC100State), |
| 1135 | VMSTATE_UINT32(revr, FTGMAC100State), |
| 1136 | VMSTATE_UINT32(fear1, FTGMAC100State), |
| 1137 | VMSTATE_UINT32(tpafcr, FTGMAC100State), |
| 1138 | VMSTATE_UINT32(maccr, FTGMAC100State), |
| 1139 | VMSTATE_UINT32(phycr, FTGMAC100State), |
| 1140 | VMSTATE_UINT32(phydata, FTGMAC100State), |
| 1141 | VMSTATE_UINT32(fcr, FTGMAC100State), |
| 1142 | VMSTATE_UINT32(phy_status, FTGMAC100State), |
| 1143 | VMSTATE_UINT32(phy_control, FTGMAC100State), |
| 1144 | VMSTATE_UINT32(phy_advertise, FTGMAC100State), |
| 1145 | VMSTATE_UINT32(phy_int, FTGMAC100State), |
| 1146 | VMSTATE_UINT32(phy_int_mask, FTGMAC100State), |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 1147 | VMSTATE_UINT32(txdes0_edotr, FTGMAC100State), |
| 1148 | VMSTATE_UINT32(rxdes0_edorr, FTGMAC100State), |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1149 | VMSTATE_END_OF_LIST() |
| 1150 | } |
| 1151 | }; |
| 1152 | |
| 1153 | static Property ftgmac100_properties[] = { |
Cédric Le Goater | 1335fe3 | 2017-04-14 10:35:01 +0200 | [diff] [blame] | 1154 | DEFINE_PROP_BOOL("aspeed", FTGMAC100State, aspeed, false), |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1155 | DEFINE_NIC_PROPERTIES(FTGMAC100State, conf), |
| 1156 | DEFINE_PROP_END_OF_LIST(), |
| 1157 | }; |
| 1158 | |
| 1159 | static void ftgmac100_class_init(ObjectClass *klass, void *data) |
| 1160 | { |
| 1161 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 1162 | |
| 1163 | dc->vmsd = &vmstate_ftgmac100; |
| 1164 | dc->reset = ftgmac100_reset; |
Marc-André Lureau | 4f67d30 | 2020-01-10 19:30:32 +0400 | [diff] [blame] | 1165 | device_class_set_props(dc, ftgmac100_properties); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1166 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
| 1167 | dc->realize = ftgmac100_realize; |
| 1168 | dc->desc = "Faraday FTGMAC100 Gigabit Ethernet emulation"; |
| 1169 | } |
| 1170 | |
| 1171 | static const TypeInfo ftgmac100_info = { |
| 1172 | .name = TYPE_FTGMAC100, |
| 1173 | .parent = TYPE_SYS_BUS_DEVICE, |
| 1174 | .instance_size = sizeof(FTGMAC100State), |
| 1175 | .class_init = ftgmac100_class_init, |
| 1176 | }; |
| 1177 | |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 1178 | /* |
| 1179 | * AST2600 MII controller |
| 1180 | */ |
| 1181 | #define ASPEED_MII_PHYCR_FIRE BIT(31) |
| 1182 | #define ASPEED_MII_PHYCR_ST_22 BIT(28) |
| 1183 | #define ASPEED_MII_PHYCR_OP(x) ((x) & (ASPEED_MII_PHYCR_OP_WRITE | \ |
| 1184 | ASPEED_MII_PHYCR_OP_READ)) |
| 1185 | #define ASPEED_MII_PHYCR_OP_WRITE BIT(26) |
| 1186 | #define ASPEED_MII_PHYCR_OP_READ BIT(27) |
| 1187 | #define ASPEED_MII_PHYCR_DATA(x) (x & 0xffff) |
| 1188 | #define ASPEED_MII_PHYCR_PHY(x) (((x) >> 21) & 0x1f) |
| 1189 | #define ASPEED_MII_PHYCR_REG(x) (((x) >> 16) & 0x1f) |
| 1190 | |
| 1191 | #define ASPEED_MII_PHYDATA_IDLE BIT(16) |
| 1192 | |
| 1193 | static void aspeed_mii_transition(AspeedMiiState *s, bool fire) |
| 1194 | { |
| 1195 | if (fire) { |
| 1196 | s->phycr |= ASPEED_MII_PHYCR_FIRE; |
| 1197 | s->phydata &= ~ASPEED_MII_PHYDATA_IDLE; |
| 1198 | } else { |
| 1199 | s->phycr &= ~ASPEED_MII_PHYCR_FIRE; |
| 1200 | s->phydata |= ASPEED_MII_PHYDATA_IDLE; |
| 1201 | } |
| 1202 | } |
| 1203 | |
| 1204 | static void aspeed_mii_do_phy_ctl(AspeedMiiState *s) |
| 1205 | { |
| 1206 | uint8_t reg; |
| 1207 | uint16_t data; |
| 1208 | |
| 1209 | if (!(s->phycr & ASPEED_MII_PHYCR_ST_22)) { |
| 1210 | aspeed_mii_transition(s, !ASPEED_MII_PHYCR_FIRE); |
| 1211 | qemu_log_mask(LOG_UNIMP, "%s: unsupported ST code\n", __func__); |
| 1212 | return; |
| 1213 | } |
| 1214 | |
| 1215 | /* Nothing to do */ |
| 1216 | if (!(s->phycr & ASPEED_MII_PHYCR_FIRE)) { |
| 1217 | return; |
| 1218 | } |
| 1219 | |
| 1220 | reg = ASPEED_MII_PHYCR_REG(s->phycr); |
| 1221 | data = ASPEED_MII_PHYCR_DATA(s->phycr); |
| 1222 | |
| 1223 | switch (ASPEED_MII_PHYCR_OP(s->phycr)) { |
| 1224 | case ASPEED_MII_PHYCR_OP_WRITE: |
| 1225 | do_phy_write(s->nic, reg, data); |
| 1226 | break; |
| 1227 | case ASPEED_MII_PHYCR_OP_READ: |
| 1228 | s->phydata = (s->phydata & ~0xffff) | do_phy_read(s->nic, reg); |
| 1229 | break; |
| 1230 | default: |
| 1231 | qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid OP code %08x\n", |
| 1232 | __func__, s->phycr); |
| 1233 | } |
| 1234 | |
| 1235 | aspeed_mii_transition(s, !ASPEED_MII_PHYCR_FIRE); |
| 1236 | } |
| 1237 | |
| 1238 | static uint64_t aspeed_mii_read(void *opaque, hwaddr addr, unsigned size) |
| 1239 | { |
| 1240 | AspeedMiiState *s = ASPEED_MII(opaque); |
| 1241 | |
| 1242 | switch (addr) { |
| 1243 | case 0x0: |
| 1244 | return s->phycr; |
| 1245 | case 0x4: |
| 1246 | return s->phydata; |
| 1247 | default: |
| 1248 | g_assert_not_reached(); |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | static void aspeed_mii_write(void *opaque, hwaddr addr, |
| 1253 | uint64_t value, unsigned size) |
| 1254 | { |
| 1255 | AspeedMiiState *s = ASPEED_MII(opaque); |
| 1256 | |
| 1257 | switch (addr) { |
| 1258 | case 0x0: |
| 1259 | s->phycr = value & ~(s->phycr & ASPEED_MII_PHYCR_FIRE); |
| 1260 | break; |
| 1261 | case 0x4: |
| 1262 | s->phydata = value & ~(0xffff | ASPEED_MII_PHYDATA_IDLE); |
| 1263 | break; |
| 1264 | default: |
| 1265 | g_assert_not_reached(); |
| 1266 | } |
| 1267 | |
| 1268 | aspeed_mii_transition(s, !!(s->phycr & ASPEED_MII_PHYCR_FIRE)); |
| 1269 | aspeed_mii_do_phy_ctl(s); |
| 1270 | } |
| 1271 | |
| 1272 | static const MemoryRegionOps aspeed_mii_ops = { |
| 1273 | .read = aspeed_mii_read, |
| 1274 | .write = aspeed_mii_write, |
| 1275 | .valid.min_access_size = 4, |
| 1276 | .valid.max_access_size = 4, |
| 1277 | .endianness = DEVICE_LITTLE_ENDIAN, |
| 1278 | }; |
| 1279 | |
| 1280 | static void aspeed_mii_reset(DeviceState *dev) |
| 1281 | { |
| 1282 | AspeedMiiState *s = ASPEED_MII(dev); |
| 1283 | |
| 1284 | s->phycr = 0; |
| 1285 | s->phydata = 0; |
| 1286 | |
| 1287 | aspeed_mii_transition(s, !!(s->phycr & ASPEED_MII_PHYCR_FIRE)); |
| 1288 | }; |
| 1289 | |
| 1290 | static void aspeed_mii_realize(DeviceState *dev, Error **errp) |
| 1291 | { |
| 1292 | AspeedMiiState *s = ASPEED_MII(dev); |
| 1293 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 1294 | |
Cédric Le Goater | ccb88bf | 2019-11-19 15:12:11 +0100 | [diff] [blame] | 1295 | assert(s->nic); |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 1296 | |
| 1297 | memory_region_init_io(&s->iomem, OBJECT(dev), &aspeed_mii_ops, s, |
| 1298 | TYPE_ASPEED_MII, 0x8); |
| 1299 | sysbus_init_mmio(sbd, &s->iomem); |
| 1300 | } |
| 1301 | |
| 1302 | static const VMStateDescription vmstate_aspeed_mii = { |
| 1303 | .name = TYPE_ASPEED_MII, |
| 1304 | .version_id = 1, |
| 1305 | .minimum_version_id = 1, |
| 1306 | .fields = (VMStateField[]) { |
| 1307 | VMSTATE_UINT32(phycr, FTGMAC100State), |
| 1308 | VMSTATE_UINT32(phydata, FTGMAC100State), |
| 1309 | VMSTATE_END_OF_LIST() |
| 1310 | } |
| 1311 | }; |
Cédric Le Goater | ccb88bf | 2019-11-19 15:12:11 +0100 | [diff] [blame] | 1312 | |
| 1313 | static Property aspeed_mii_properties[] = { |
| 1314 | DEFINE_PROP_LINK("nic", AspeedMiiState, nic, TYPE_FTGMAC100, |
| 1315 | FTGMAC100State *), |
| 1316 | DEFINE_PROP_END_OF_LIST(), |
| 1317 | }; |
| 1318 | |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 1319 | static void aspeed_mii_class_init(ObjectClass *klass, void *data) |
| 1320 | { |
| 1321 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 1322 | |
| 1323 | dc->vmsd = &vmstate_aspeed_mii; |
| 1324 | dc->reset = aspeed_mii_reset; |
| 1325 | dc->realize = aspeed_mii_realize; |
| 1326 | dc->desc = "Aspeed MII controller"; |
Marc-André Lureau | 4f67d30 | 2020-01-10 19:30:32 +0400 | [diff] [blame] | 1327 | device_class_set_props(dc, aspeed_mii_properties); |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 1328 | } |
| 1329 | |
| 1330 | static const TypeInfo aspeed_mii_info = { |
| 1331 | .name = TYPE_ASPEED_MII, |
| 1332 | .parent = TYPE_SYS_BUS_DEVICE, |
| 1333 | .instance_size = sizeof(AspeedMiiState), |
| 1334 | .class_init = aspeed_mii_class_init, |
| 1335 | }; |
| 1336 | |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1337 | static void ftgmac100_register_types(void) |
| 1338 | { |
| 1339 | type_register_static(&ftgmac100_info); |
Cédric Le Goater | 289251b | 2019-09-25 16:32:47 +0200 | [diff] [blame] | 1340 | type_register_static(&aspeed_mii_info); |
Cédric Le Goater | bd44300 | 2017-04-14 10:35:00 +0200 | [diff] [blame] | 1341 | } |
| 1342 | |
| 1343 | type_init(ftgmac100_register_types) |