X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fne2k.c;h=9df08716f92acec460746f4b00f81d89533dd0cd;hp=431c590d386a711ce56b83b3093b93f8bb727aa2;hb=8297338f93cf45f648281a9d01161eb9115f9dd1;hpb=dd7ea495f8177d9594526263440ed67afa8f8e64 diff --git a/palacios/src/devices/ne2k.c b/palacios/src/devices/ne2k.c index 431c590..9df0871 100644 --- a/palacios/src/devices/ne2k.c +++ b/palacios/src/devices/ne2k.c @@ -29,249 +29,463 @@ #include #include -#ifndef DEBUG_NE2K +#ifndef CONFIG_DEBUG_NE2K #undef PrintDebug #define PrintDebug(fmts, args...) #endif -//#define TEST_PERFORMANCE 0 + + + +#define NE2K_DEFAULT_IRQ 11 + +#define MAX_ETH_FRAME_SIZE 1514 + + +// What the hell is this crap? +#define NE2K_PMEM_SIZE (32 * 1024) +#define NE2K_PMEM_START (16 * 1024) +#define NE2K_PMEM_END (NE2K_PMEM_SIZE + NE2K_PMEM_START) +#define NE2K_MEM_SIZE NE2K_PMEM_END + +#define NIC_REG_BASE_PORT 0xc100 //Command register (for all pages) +#define NIC_DATA_PORT 0xc110 //Data read/write port +#define NIC_RESET_PORT 0xc11f //Data read/write port + +// Page 0 registers +#define EN0_CLDALO 0x01 //Low byte of current local dma addr RD +#define EN0_STARTPG 0x01 //Starting page of ring bfr WR +#define EN0_CLDAHI 0x02 //High byte of current local dma addr RD +#define EN0_STOPPG 0x02 //Ending page +1 of ring bfr WR +#define EN0_BOUNDARY 0x03 //Boundary page of ring bfr RD WR +#define EN0_TSR 0x04 //Transmit status reg RD +#define EN0_TPSR 0x04 //Transmit starting page WR +#define EN0_NCR 0x05 //Number of collision reg RD +#define EN0_TCNTLO 0x05 //Low byte of tx byte count WR +#define EN0_FIFO 0x06 //FIFO RD +#define EN0_TCNTHI 0x06 //High byte of tx byte count WR +#define EN0_ISR 0x07 //Interrupt status reg RD WR +#define EN0_CRDALO 0x08 //low byte of current remote dma address RD +#define EN0_RSARLO 0x08 //Remote start address reg 0 +#define EN0_CRDAHI 0x09 //high byte, current remote dma address RD +#define EN0_RSARHI 0x09 //Remote start address reg 1 +#define EN0_RCNTLO 0x0a //Remote byte count reg WR +#define EN0_RTL8029ID0 0x0a //Realtek ID byte #1 RD +#define EN0_RCNTHI 0x0b //Remote byte count reg WR +#define EN0_RTL8029ID1 0x0b //Realtek ID byte #2 RD +#define EN0_RSR 0x0c //rx status reg RD +#define EN0_RXCR 0x0c //RX configuration reg WR +#define EN0_TXCR 0x0d //TX configuration reg WR +#define EN0_COUNTER0 0x0d //Rcv alignment error counter RD +#define EN0_DCFG 0x0e //Data configuration reg WR +#define EN0_COUNTER1 0x0e //Rcv CRC error counter RD +#define EN0_IMR 0x0f //Interrupt mask reg WR +#define EN0_COUNTER2 0x0f //Rcv missed frame error counter RD + +//Page 1 registers +#define EN1_PHYS 0x01 +#define EN1_CURPAG 0x07 +#define EN1_MULT 0x08 + +//Page 2 registers +#define EN2_STARTPG 0x01 //Starting page of ring bfr RD +#define EN2_STOPPG 0x02 //Ending page +1 of ring bfr RD +#define EN2_LDMA0 0x01 //Current Local DMA Address 0 WR +#define EN2_LDMA1 0x02 //Current Local DMA Address 1 WR +#define EN2_RNPR 0x03 //Remote Next Packet Pointer RD WR +#define EN2_TPSR 0x04 //Transmit Page Start Address RD +#define EN2_LNRP 0x05 //Local Next Packet Pointer RD WR +#define EN2_ACNT0 0x06 //Address Counter Upper WR +#define EN2_ACNT1 0x07 //Address Counter Lower WR +#define EN2_RCR 0x0c //Receive Configuration Register RD +#define EN2_TCR 0x0d //Transmit Configuration Register RD +#define EN2_DCR 0x0e //Data Configuration Register RD +#define EN2_IMR 0x0f //Interrupt Mask Register RD + +//Page 3 registers +#define EN3_CONFIG0 0x03 +#define EN3_CONFIG1 0x04 +#define EN3_CONFIG2 0x05 +#define EN3_CONFIG3 0x06 + + typedef enum {NIC_READY, NIC_REG_POSTED} nic_state_t; -struct ne2k_context{ - struct guest_info *vm; +struct cmd_reg { + union { + uint8_t val; + struct { + uint8_t stop : 1; + uint8_t start : 1; + uint8_t tx_pkt : 1; + uint8_t rem_dma_cmd : 3; // 0=Not allowed, 1=Read, 2=Write, 3=Send Pkt, 4=Abort/Complete DMA + uint8_t pg_sel : 2; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + + +struct intr_status_reg { + union { + uint8_t val; + struct { + uint8_t pkt_rx : 1; + uint8_t pkt_tx : 1; + uint8_t rx_err : 1; + uint8_t tx_err : 1; + uint8_t overwrite_warn : 1; + uint8_t cnt_overflow : 1; + uint8_t rem_dma_done : 1; + uint8_t reset_status : 1; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + + +struct intr_mask_reg { + union { + uint8_t val; + struct { + uint8_t pkt_rx : 1; + uint8_t pkt_tx : 1; + uint8_t rx_err : 1; + uint8_t tx_err : 1; + uint8_t overwrite_warn : 1; + uint8_t cnt_overflow : 1; + uint8_t rem_dma_done : 1; + uint8_t rsvd : 1; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + + +struct data_cfg_reg { + union { + uint8_t val; + struct { + uint8_t word_trans_sel : 1; + uint8_t byte_order_sel : 1; + uint8_t long_addr_sel : 1; + uint8_t loopback_sel : 1; + uint8_t auto_init_rem : 1; + uint8_t fifo_thresh_sel : 2; + uint8_t rsvd : 1; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + + +struct tx_cfg_reg { + union { + uint8_t val; + struct { + uint8_t inhibit_crc : 1; + uint8_t enc_loop_ctrl : 2; + uint8_t auto_tx_disable : 1; + uint8_t coll_offset_en : 1; + uint8_t rsvd : 3; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + +struct tx_status_reg { + union { + uint8_t val; + struct { + uint8_t pkt_tx_ok : 1; + uint8_t rsvd : 1; + uint8_t tx_collision : 1; + uint8_t tx_aborted : 1; + uint8_t carrier_lost : 1; + uint8_t fifo_underrun : 1; + uint8_t cd_heartbeat : 1; + uint8_t oow_collision : 1; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + +struct rx_cfg_reg { + union { + uint8_t val; + struct { + uint8_t save_pkt_errs : 1; + uint8_t runt_pkt_ok : 1; + uint8_t bcast_ok : 1; + uint8_t mcast_ok : 1; + uint8_t prom_phys_enable : 1; + uint8_t mon_mode : 1; + uint8_t rsvd : 2; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + + +struct rx_status_reg { + union { + uint8_t val; + struct { + uint8_t pkt_rx_ok : 1; + uint8_t crc_err : 1; + uint8_t frame_align_err : 1; + uint8_t fifo_overrun : 1; + uint8_t missed_pkt : 1; + uint8_t phy_match : 1; // 0=Physical Addr Match, 1=MCAST/BCAST Addr Match + uint8_t rx_disabled : 1; + uint8_t deferring : 1; + } __attribute__((packed)); + } __attribute__((packed)); +} __attribute__((packed)); + + +struct ne2k_context { + struct guest_info * vm; + nic_state_t dev_state; - struct ne2k_regs regs; - uchar_t mac[6]; - uchar_t mem[NE2K_MEM_SIZE]; - struct pci_device *pci_dev; - struct vm_device *pci; + // Registers + struct cmd_reg cmd; + struct intr_status_reg isr; + struct intr_mask_reg imr; + struct data_cfg_reg dcr; + struct tx_cfg_reg tcr; + struct tx_status_reg tsr; + struct rx_cfg_reg rcr; + struct rx_status_reg rsr; + + uint8_t pgstart; // page start reg + uint8_t pgstop; // page stop reg + uint8_t boundary; // boundary ptr + uint8_t tpsr; // tx page start addr + uint8_t ncr; // number of collisions + uint8_t fifo; // FIFO... + + uint8_t curpag; // current page + uint8_t rnpp; // rem next pkt ptr + uint8_t lnpp; // local next pkt ptr + + uint8_t cntr0; // counter 0 (frame alignment errors) + uint8_t cntr1; // counter 1 (CRC Errors) + uint8_t cntr2; // counter 2 (missed pkt errors) + + union { // current local DMA Addr + uint16_t clda; + struct { + uint8_t clda0; + uint8_t clda1; + } __attribute__((packed)); + } __attribute__((packed)); + + + union { // current remote DMA addr + uint16_t crda; + struct { + uint8_t crda0; + uint8_t crda1; + } __attribute__((packed)); + } __attribute__((packed)); + + + union { // Remote Start Addr Reg + uint16_t rsar; + struct { + uint8_t rsar0; + uint8_t rsar1; + } __attribute__((packed)); + } __attribute__((packed)); + + + union { // TX Byte count Reg + uint16_t tbcr; + struct { + uint8_t tbcr0; + uint8_t tbcr1; + } __attribute__((packed)); + } __attribute__((packed)); + + union { // Remote Byte count Reg + uint16_t rbcr; + struct { + uint8_t rbcr0; + uint8_t rbcr1; + } __attribute__((packed)); + } __attribute__((packed)); + + + + union { // Address counter? + uint16_t addcnt; + struct { + uint8_t addcnt0; + uint8_t addcnt1; + } __attribute__((packed)); + } __attribute__((packed)); + + + uint8_t mcast_addr[8]; // multicast mask array + uint8_t mac_addr[6]; // MAC Addr + + uint8_t mem[NE2K_MEM_SIZE]; + + struct pci_device * pci_dev; + struct vm_device * pci_bus; }; -#define NUM_NE2K 10 +#define compare_mac(src, dst) !memcmp(src, dst, 6) -struct vm_device *ne2ks[NUM_NE2K]; //the array of virtual network cards +#ifdef CONFIG_DEBUG_NE2K +static void dump_state(struct vm_device * dev) { + struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; + int i; -static int nic_no = 0; -#if TEST_PERFORMANCE -static uint32_t exit_num = 0; -static uint32_t int_num = 0; -#endif + PrintDebug("====NE2000: Dumping state Begin ==========\n"); + PrintDebug("Registers:\n"); -#define compare_mac(src, dst) ({ \ - ((src[0] == dst[0]) && \ - (src[1] == dst[1]) && \ - (src[2] == dst[2]) && \ - (src[3] == dst[3]) && \ - (src[4] == dst[4]) && \ - (src[5] == dst[5]))? 1:0; \ - }) - -extern int V3_Send_pkt(uchar_t *buf, int length); -extern int V3_Register_pkt_event(int (*netif_input)(uchar_t * pkt, uint_t size)); - -#ifdef DEBUG_NE2K -static void dump_state(struct vm_device *dev) -{ - int i; - uchar_t *p; - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; - - PrintDebug("====NE2000: Dumping state Begin ==========\n"); - PrintDebug("Registers:\n"); - - p = (uchar_t *)&nic_state->regs; - for(i = 0; i < sizeof(struct ne2k_regs); i++) - PrintDebug("Regs[%d] = 0x%2x\n", i, (int)p[i]); - - PrintDebug("Memory:\n"); - for(i = 0; i < 32; i++) + // JRL: Dump Registers + + PrintDebug("Memory:\n"); + + for(i = 0; i < 32; i++) { PrintDebug("0x%02x ", nic_state->mem[i]); - PrintDebug("\n"); - PrintDebug("====NE2000: Dumping state End==========\n"); + } + + PrintDebug("\n"); + PrintDebug("====NE2000: Dumping state End==========\n"); } #endif -#if 0 -//no-pci version -static void ne2k_update_irq(struct vm_device *dev) -{ - int isr; - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; - struct guest_info *guest = dev->vm; - - isr = ((nic_state->regs.isr & nic_state->regs.imr) & 0x7f); - - if ((isr & 0x7f) != 0x0) { - v3_raise_irq(guest, NIC_DEF_IRQ); - PrintDebug("Ne2k: RaiseIrq: isr: 0x%02x imr: 0x%02x\n", nic_state->regs.isr, nic_state->regs.imr); - } -} -#endif -#if 1 -//pci version -static void ne2k_update_irq(struct vm_device *dev) -{ - int isr; - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; - struct pci_device *pdev = nic_state->pci_dev; - int irqline = 0; +static int ne2k_update_irq(struct vm_device *dev) { + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; + struct pci_device * pci_dev = nic_state->pci_dev; + int irq_line = 0; - if (pdev == NULL){ - PrintDebug("Ne2k: Device %p is not attached to any PCI Bus\n", nic_state); - irqline = NE2K_DEF_IRQ; + if (pci_dev == NULL){ + PrintDebug("Ne2k: Device %p is not attached to any PCI Bus\n", nic_state); + irq_line = NE2K_DEFAULT_IRQ; } else { - irqline = pdev->config_header.intr_line; + irq_line = pdev->config_header.intr_line; } - - isr = ((nic_state->regs.isr & nic_state->regs.imr) & 0x7f); - - if (irqline == 0){ - PrintError("Ne2k: IRQ_LINE: %d\n", irqline); - return; + + if (irq_line == 0){ + PrintError("Ne2k: IRQ_LINE: %d\n", irq_line); + return -1; } - PrintDebug("Ne2k: RaiseIrq: isr: 0x%02x imr: 0x%02x\n", nic_state->regs.isr, nic_state->regs.imr); - PrintDebug("ne2k_update_irq: irq_line: %d\n", irqline); + PrintDebug("ne2k_update_irq: irq_line: %d\n", irq_line); + - if ((isr & 0x7f) != 0x0) { - v3_raise_irq(nic_state->vm, irqline); - PrintDebug("Ne2k: RaiseIrq: isr: 0x%02x imr: 0x%02x\n", nic_state->regs.isr, nic_state->regs.imr); + // The top bit of the ISR/IMR is reserved and does not indicate and irq event + // We mask the bit out of the irq pending check + if ((nic_state->isr.val & nic_state->imr.val) & 0x7f) { + v3_raise_irq(nic_state->vm, irq_line); + PrintDebug("Ne2k: RaiseIrq: isr: 0x%02x imr: 0x%02x\n", nic_state->isr.val, nic_state->imr.val); + } - #if TEST_PERFORMANCE - if ((++int_num) % 50 == 0) - PrintError("Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif - } + return 0; } -#endif -static void init_ne2k_context(struct vm_device *dev) -{ - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; + +static void ne2k_init_state(struct vm_device * dev) { + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; int i; - uchar_t mac[6] = {0x52, 0x54, 0x0, 0x12, 0x34, (0x60 + nic_no)}; + uchar_t mac[6] = {0x52, 0x54, 0x0, 0x12, 0x34, 0x60}; nic_state->vm = dev->vm; - nic_state->regs.isr = ENISR_RESET; - nic_state->regs.imr = 0x00; - nic_state->regs.cmd = 0x22; + nic_state->isr.reset = 1; + nic_state->imr.val = 0x00; + nic_state->cmd.val = 0x22; - for (i = 0; i < 5; i++) - nic_state->regs.macaddr[i] = nic_state->mac[i] = mac[i]; + for (i = 0; i < 5; i++) { + nic_state->mac_addr[i] = mac[i]; + } - nic_state->regs.macaddr[5] = nic_state->mac[5] = mac[5] + nic_no; + memset(nic_state->mcast_addr, 0xff, sizeof(nic_state->mcast_addr)); - for (i = 0; i < 8; i++) - nic_state->regs.mult[i] = 0xff; + // Not sure what this is about.... + memset(nic_state->mem, 0xff, 32); - for(i = 0; i < 32; i++) { - nic_state->mem[i] = 0xff; - } - - memcpy(nic_state->mem, nic_state->mac, 6); + memcpy(nic_state->mem, nic_state->mac_addr, 6); nic_state->mem[14] = 0x57; nic_state->mem[15] = 0x57; -#ifdef DEBUG_NE2K +#ifdef CONFIG_DEBUG_NE2K dump_state(dev); #endif } -static int ne2k_send_packet(struct vm_device *dev, uchar_t *pkt, int length) -{ +static int ne2k_send_packet(struct vm_device *dev, uchar_t *pkt, int length) { int i; PrintDebug("\nNe2k: Sending Packet\n"); - for (i = 0; iprivate_data; - static const uchar_t brocast_mac[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; + index = nic_state->curpag << 8; + boundary = nic_state->boundary << 8; - for (i = 0; i < NUM_NE2K; i++){ - if (ne2ks[i] != NULL) { - nic_state = (struct ne2k_context *)ne2ks[i]->private_data; - nregs = &(nic_state->regs); - - if (nregs->rcr & 0x10) {//broadcast packets, not correct here - return ne2ks[i]; - } else { - if (compare_mac(dst_mac, brocast_mac) && (nregs->rcr & 0x04)) //broadcast address - return ne2ks[i]; - if (dst_mac[0] & 0x01) { - // multicast packet, not done here - // ========== - if (nregs->rcr & 0x08) - return ne2ks[i]; - } - if (compare_mac(dst_mac, nic_state->mac)) - return ne2ks[i]; - } - } + if (index < boundary) { + empty = boundary - index; + } else { + empty = ((nic_state->pgstop - nic_state->pgstart) << 8) - (index - boundary); } - return NULL; -} - -static int ne2k_rxbuf_full(struct vm_device *dev) -{ - int empty, index, boundary; - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; - - index = nic_state->regs.curpag << 8; - boundary = nic_state->regs.boundary << 8; - if (index < boundary) - empty = boundary - index; - else - empty = ((nic_state->regs.pgstop - nic_state->regs.pgstart) << 8) - (index - boundary); - - if (empty < (MAX_ETH_FRAME_SIZE + 4)) + if (empty < (MAX_ETH_FRAME_SIZE + 4)) { return 1; - + } + return 0; } #define MIN_BUF_SIZE 60 -static void ne2k_receive(struct vm_device *dev, const uchar_t *pkt, int length) -{ - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; - struct ne2k_regs *nregs = &(nic_state->regs); - uchar_t *p; - uint32_t total_len, next, len, index, empty; + +// This needs to be completely redone... +static void ne2k_receive(struct vm_device * dev, const uchar_t * pkt, int length) { + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; + uchar_t * p; + uint32_t total_len; + uint32_t next; + uint32_t len; + uint32_t index; + uint32_t empty; uchar_t buf[60]; - uint32_t start, stop; + uint32_t start; + uint32_t stop; - start = nregs->pgstart << 8; - stop = nregs->pgstop << 8; + start = nic_state->pgstart << 8; + stop = nic_state->pgstop << 8; - if (nregs->cmd & NE2K_STOP) - return; + if (nic_state->cmd.stop) { + return; + } - if (ne2k_rxbuf_full(dev)){ - PrintError("Ne2k: received buffer overflow\n"); - return; + if (ne2k_rxbuf_full(dev)) { + PrintError("Ne2k: received buffer overflow\n"); + return; } + //packet too small, expand it if (length < MIN_BUF_SIZE) { memcpy(buf, pkt, length); @@ -280,823 +494,699 @@ static void ne2k_receive(struct vm_device *dev, const uchar_t *pkt, int length) length = MIN_BUF_SIZE; } - index = nregs->curpag << 8; + index = nic_state->curpag << 8; + //header, 4 bytes total_len = length + 4; + //address for next packet (4 bytes for CRC) next = index + ((total_len + 4 + 255) & ~0xff); - if (next >= stop) - next -= stop - start; + + if (next >= stop) { + next -= (stop - start); + } p = nic_state->mem + index; - nregs->rsr = ENRSR_RXOK; + nic_state->rsr.val = 0; + nic_state->rsr.rx_pkt_ok = 1; - if (pkt[0] & 0x01) - nregs->rsr |= ENRSR_PHY; - - p[0] = nregs->rsr; + if (pkt[0] & 0x01) { + nic_state->rsr.phy = 1; + } + + p[0] = nic_state->rsr.val; p[1] = next >> 8; p[2] = total_len; p[3] = total_len >> 8; index += 4; while (length > 0) { - if (index <= stop) + if (index <= stop) { empty = stop - index; - else + } else { empty = 0; + } + len = length; - if (len > empty) + + if (len > empty) { len = empty; + } + memcpy(nic_state->mem + index, pkt, len); pkt += len; index += len; - if (index == stop) + + if (index == stop) { index = start; + } + length -= len; } - nregs->curpag = next >> 8; - nregs->isr |= ENISR_RX; + nic_state->curpag = next >> 8; + + nic_state->isr.pkt_rx = 1; ne2k_update_irq(dev); } -static int ne2k_hook_iospace(struct vm_device *vmdev, addr_t base_addr, int size, int type, void *data); - -static struct pci_device * pci_ne2k_init(struct vm_device *vmdev, - struct vm_device *pci, - int bus_no, - int dev_num, - int fn_num, - int (*io_read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev), - int (*io_write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) -{ - uchar_t *pci_conf; - struct pci_device *pdev; - struct v3_pci_bar ne2k_bar; - - ne2k_bar.type = PCI_BAR_IO; - ne2k_bar.num_ports = 0x100; - ne2k_bar.default_base_port = 0xc100; - ne2k_bar.io_read = io_read; - ne2k_bar.io_write = io_write; - - pdev = v3_pci_register_device(vmdev, - PCI_STD_DEVICE, - bus_no, - dev_num, - fn_num, - "NE2000", - &ne2k_bar, - NULL, NULL, NULL, vmdev); - - if (pdev == NULL){ - PrintError("NIC: Register to PCI bus failed\n"); - return NULL; - } - pci_conf = pdev->config_space; - - pci_conf[0x00] = 0xec; // Realtek 8029 - pci_conf[0x01] = 0x10; - pci_conf[0x02] = 0x29; - pci_conf[0x03] = 0x80; - pci_conf[0x0a] = 0x00; // ethernet network controller - pci_conf[0x0b] = 0x02; - pci_conf[0x0e] = 0x00; // header_type - pci_conf[0x3d] = 1; // interrupt pin 0 - pci_conf[0x3c] = 11; - - pdev->vm_dev = vmdev; - - return pdev; -} -static int netif_input(uchar_t * pkt, uint_t size) -{ - uint_t i; - struct vm_device *dev; + +static int netif_input(uchar_t *pkt, uint_t size) { + struct ne2k_context * nic_state; + static const uchar_t brocast_mac[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; + int i; - PrintDebug("\nNe2k: Packet Received:\nSource:"); - for (i = 6; i < 12; i++) { +#ifdef CONFIG_DEBUG_NE2K + PrintDebug("\nNe2k: Packet Received:\nSource:"); + for (i = 6; i < 12; i++) { PrintDebug("%x ", pkt[i]); - } - - dev = get_rx_dev(pkt); //TODO: handle multiple destination packets + } - if (dev == NULL) - return 0; + PrintDebug("\n"); - PrintDebug("\n"); - for(i= 0; i> 8; - - return p; -} - - -static inline uint32_t cpu2le32(uint32_t val) -{ - uint32_t p; - uchar_t *p1 = (uchar_t *)&p; - - p1[0] = val; - p1[1] = val >> 8; - p1[2] = val >> 16; - p1[3] = val >> 24; - - return p; + } + PrintDebug("\n"); +#endif + + + if (nic_state->rcr.prom_phys_enable == 1) { + //promiscuous mode + ne2k_receive(ne2ks[i], pkt, size); + } else if (compare_mac(pkt, brocast_mac) && (nic_state->rcr.bcast_ok)) { + //broadcast packet + ne2k_receive(ne2ks[i], pkt, size); + } else if ((pkt[0] & 0x01) && (nic_state->rcr.mcast_ok)) { + //TODO: multicast packet + ne2k_receive(ne2ks[i], pkt, size); + } else if (compare_mac(pkt, nic_state->mac_addr)) { + ne2k_receive(ne2ks[i], pkt, size); + } + + return 0; } -static inline uint16_t le16_to_cpu(const uint16_t *p) -{ - const uchar_t *p1 = (const uchar_t *)p; - return p1[0] | (p1[1] << 8); -} -static inline uint32_t le32_to_cpu(const uint32_t *p) -{ - const uchar_t *p1 = (const uchar_t *)p; - return p1[0] | (p1[1] << 8) | (p1[2] << 16) | (p1[3] << 24); -} - -static void -ne2k_mem_writeb(struct ne2k_context *nic_state, - uint32_t addr, - uint32_t val) -{ +static void ne2k_mem_writeb(struct ne2k_context * nic_state, uint32_t addr, uint32_t val) { uchar_t tmp; tmp = (uchar_t) (val & 0x000000ff); - if (addr < 32 || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { + + if ((addr < 32) || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { nic_state->mem[addr] = tmp; } PrintDebug("wmem addr: %x val: %x\n", addr, val); } -static void -ne2k_mem_writew(struct ne2k_context *nic_state, - uint32_t addr, - uint32_t val) -{ +static void ne2k_mem_writew(struct ne2k_context * nic_state, + uint32_t addr, + uint32_t val) { addr &= ~1; //XXX: check exact behaviour if not even - if (addr < 32 || - (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { + + if ((addr < 32) || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { *(ushort_t *)(nic_state->mem + addr) = cpu2le16(val); } PrintDebug("wmem addr: %x val: %x\n", addr, val); } -static void -ne2k_mem_writel(struct ne2k_context *nic_state, - uint32_t addr, - uint32_t val) -{ +static void ne2k_mem_writel(struct ne2k_context *nic_state, + uint32_t addr, + uint32_t val) { addr &= ~1; // XXX: check exact behaviour if not even - if (addr < 32 || - (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { + + if ((addr < 32) || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { *(uint32_t *)(nic_state->mem + addr) = cpu2le32(val); } PrintDebug("wmem addr: %x val: %x\n", addr, val); } -static uchar_t -ne2k_mem_readb(struct ne2k_context *nic_state, uint32_t addr) -{ +static uchar_t ne2k_mem_readb(struct ne2k_context *nic_state, uint32_t addr) { PrintDebug("rmem addr: %x\n", addr); - if (addr < 32 || - (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { + if ((addr < 32) || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { return nic_state->mem[addr]; } else { return 0xff; } } -static ushort_t -ne2k_mem_readw(struct ne2k_context *nic_state, uint32_t addr) -{ +static ushort_t ne2k_mem_readw(struct ne2k_context *nic_state, uint32_t addr) { PrintDebug("rmem addr: %x\n", addr); addr &= ~1; //XXX: check exact behaviour if not even - if (addr < 32 || - (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { + + if ((addr < 32) || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { return (ushort_t)le16_to_cpu((ushort_t *)(nic_state->mem + addr)); } else { return 0xffff; } } -static uint32_t -ne2k_mem_readl(struct ne2k_context *nic_state, uint32_t addr) -{ +static uint32_t ne2k_mem_readl(struct ne2k_context *nic_state, uint32_t addr) { PrintDebug("rmem addr: %x\n", addr); addr &= ~1; //XXX: check exact behaviour if not even - if (addr < 32 || - (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { + + if ((addr < 32) || (addr >= NE2K_PMEM_START && addr < NE2K_MEM_SIZE)) { return (uint32_t)le32_to_cpu((uint32_t *)(nic_state->mem + addr)); } else { return 0xffffffff; } } -static void -ne2k_dma_update(struct vm_device *dev, int len) -{ - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; + +static void ne2k_dma_update(struct vm_device *dev, int len) { + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; - nic_state->regs.rsar += len; + nic_state->rsar += len; + // wrap - if (nic_state->regs.rsar == nic_state->regs.pgstop) - nic_state->regs.rsar = nic_state->regs.pgstart; + if (nic_state->rsar == nic_state->pgstop) { + nic_state->rsar = nic_state->pgstart; + } - if (nic_state->regs.rbcr <= len) { - nic_state->regs.rbcr = 0; - nic_state->regs.isr |= ENISR_RDC; + if (nic_state->rbcr <= len) { + nic_state->rbcr = 0; + nic_state->isr.rem_dma_done = 1; ne2k_update_irq(dev); } else { - nic_state->regs.rbcr -= len; + nic_state->rbcr -= len; } } //for data port read/write -static int ne2k_data_read(ushort_t port, - void * dst, - uint_t length, - struct vm_device *dev) -{ - uint32_t val; - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; - - // current dma address - uint32_t addr = nic_state->regs.rsar; - - switch(length){ - case 1: - val = ne2k_mem_readb(nic_state, addr); - break; - case 2: - val = ne2k_mem_readw(nic_state, addr); - break; - case 4: - val = ne2k_mem_readl(nic_state, addr); - break; - default: - PrintError("ne2k_data_read error: invalid length %d\n", length); - val = 0x0; - } +static int ne2k_data_read(ushort_t port, void * dst, uint_t length, struct vm_device *dev) { + uint32_t val; + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; + + // current dma address + uint32_t addr = nic_state->rsar; + + switch (length){ + case 1: + val = ne2k_mem_readb(nic_state, addr); + break; + case 2: + val = ne2k_mem_readw(nic_state, addr); + break; + case 4: + val = ne2k_mem_readl(nic_state, addr); + break; + default: + PrintError("ne2k_data_read error: invalid length %d\n", length); + val = 0x0; + } + + ne2k_dma_update(dev, length); - ne2k_dma_update(dev, length); + memcpy(dst, &val, length); - memcpy(dst, &val, length); + PrintDebug("ne2k_read: port:0x%x (%u bytes): 0x%x", port & 0x1f, length, val); - PrintDebug("ne2k_read: port:0x%x (%u bytes): 0x%x", port & 0x1f,length, val); + return length; +} - #if TEST_PERFORMANCE - if ((++exit_num) % 50 == 0) - PrintError("Ne2k-Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif +static int ne2k_data_write(ushort_t port, void * src, uint_t length, struct vm_device *dev) { + uint32_t val; + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; + uint32_t addr = nic_state->rsar; + if (nic_state->rbcr == 0) { return length; -} + } -static int ne2k_data_write(ushort_t port, - void * src, - uint_t length, - struct vm_device *dev) -{ - uint32_t val; - struct ne2k_context *nic_state = (struct ne2k_context *)dev->private_data; + memcpy(&val, src, length); + + switch (length) { + case 1: + ne2k_mem_writeb(nic_state, addr, val); + break; + case 2: + ne2k_mem_writew(nic_state, addr, val); + break; + case 4: + ne2k_mem_writel(nic_state, addr, val); + break; + default: + PrintError("nic_data_write error: invalid length %d\n", length); + } + + ne2k_dma_update(dev, length); - if (nic_state->regs.rbcr == 0) - return length; + PrintDebug("ne2k_write: port:0x%x (%u bytes): 0x%x\n", port & 0x1f, length, val); + + return length; +} - memcpy(&val, src, length); +static int ne2k_reset_device(struct vm_device * dev) { + PrintDebug("vnic: reset device\n"); - uint32_t addr = nic_state->regs.rsar; - - switch (length){ - case 1: - ne2k_mem_writeb(nic_state, addr, val); - break; - case 2: - ne2k_mem_writew(nic_state, addr, val); - break; - case 4: - ne2k_mem_writel(nic_state, addr, val); - break; - default: - PrintError("nic_data_write error: invalid length %d\n", length); - } - - ne2k_dma_update(dev, length); + init_ne2k_context(dev); - PrintDebug("ne2k_write: port:0x%x (%u bytes): 0x%x\n", port & 0x1f,length, val); - - #if TEST_PERFORMANCE - if ((++exit_num) % 50 == 0) - PrintError("Ne2k-Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif - - return length; + return 0; } -static int ne2k_reset_device(struct vm_device * dev) -{ - - PrintDebug("vnic: reset device\n"); - init_ne2k_context(dev); +//for 0xc11f port +static int ne2k_reset_port_read(ushort_t port, void * dst, uint_t length, struct vm_device * dev) { + PrintDebug("ne2k_read: port:0x%x (%u bytes): 0x%x\n", port, length, val); + + memset(dst, 0, length); + ne2k_reset_device(dev); - return 0; + return length; } +static int ne2k_reset_port_write(ushort_t port, void * src, uint_t length, struct vm_device * dev) { + PrintDebug("ne2k_write: port:0x%x (%u bytes): 0x%x\n", port, length, val); + return length; +} -//for 0xc11f port -static int ne2k_reset_port_read(ushort_t port, - void * dst, - uint_t length, - struct vm_device *dev) -{ - uint32_t val = 0x0; - memcpy(dst, &val, length); - PrintDebug("ne2k_read: port:0x%x (%u bytes): 0x%x\n", port,length, val); +static int ne2k_cmd_write(uint16_t port, void * src, uint_t length, struct vm_device * dev) { + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; - ne2k_reset_device(dev); + if (length != 1) { + PrintError("Invalid write length to ne2k Command register\n"); + return -1; + } - #if TEST_PERFORMANCE - if ((++exit_num) % 50 == 0) - PrintError("Ne2k-Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif + nic_state->cmd.val = *(uint8_t *)src; - return length; -} + if (!(nic_state->cmd.stop)) { + nic_state->isr.reset = 0; + -static int ne2k_reset_port_write(ushort_t port, - void * src, - uint_t length, - struct vm_device *dev) -{ - uint32_t val; + // if ((send pkt) && (dma byte count == 0)) + if ((nic_state.rem_dma_cmd & 0x3) && (nic_state->rbcr == 0)) { + nic_state->isr.rem_dma_done = 1; + ne2k_update_irq(dev); + } + + if (nic_state->cmd.tx_pkt) { + int offset = (nic_state->tpsr << 8); + + if (offset >= NE2K_PMEM_END) { + offset -= NE2K_PMEM_SIZE; + } + + if (offset + nic_state->tbcr <= NE2K_PMEM_END) { + ne2k_send_packet(dev, nic_state->mem + offset, nic_state->tbcr); + } + + + nic_state->tsr.val = 0; // clear the tx status reg + nic_state->tsr.pkt_tx_ok = 1; // indicate successful tx + + nic_state->isr.pkt_tx = 1; // irq due to pkt tx + nic_state->cmd.tx_pkt = 0; // reset cmd bit + ne2k_update_irq(dev); + } + } else { + // stop the controller + } - memcpy(&val, src, length); + return length; +} - PrintDebug("ne2k_write: port:0x%x (%u bytes): 0x%x\n", port,length, val); +static int ne2k_cmd_read(uint16_t port, void * src, uint_t length, struct vm_device * dev) { + *(uint8_t *)dst = nic_state->cmd.val; - #if TEST_PERFORMANCE - if ((++exit_num) % 50 == 0) - PrintError("Ne2k-Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif - - return length; + PrintDebug("ne2k_read: port:0x%x val: 0x%x\n", port, *(uint8_t *)dst); + return length; } -static int ne2k_ioport_write(ushort_t port, - void * src, - uint_t length, - struct vm_device *dev) -{ - uchar_t page; - struct ne2k_context *nic_state = (struct ne2k_context* )dev->private_data; - uchar_t val; - int index; - - if (length == 1) { - memcpy(&val, src, 1); - } else { - PrintError("ne2k_write error: length %d\n", length); - return length; +static int ne2k_std_write(uint16_t port, void * src, uint_t length, struct vm_device * dev) { + struct ne2k_context * nic_state = (struct ne2k_context *)dev->private_data; + int index = port & 0x1f; + uint8_t page = nic_state->cmd.pg_sel; + + if (length != 1 + PrintError("ne2k_write error: length %d\n", length); + return -1; } PrintDebug("ne2k_write: port:0x%x val: 0x%x\n", port, (int)val); - - port &= 0x1f; - - if (port == 0x10) - return ne2k_data_write(port, src, length, dev); - - if (port == 0x1f) - return ne2k_reset_port_write(port, src, length, dev); - - if (port == EN0_COMMAND) { - nic_state->regs.cmd = val; - if (!(val & NE2K_STOP)) { - nic_state->regs.isr &= ~ENISR_RESET; - if ((val & (NE2K_DMAREAD | NE2K_DMAWRITE)) && - nic_state->regs.rbcr == 0) { - nic_state->regs.isr |= ENISR_RDC; - ne2k_update_irq(dev); - } - if (val & NE2K_TRANSMIT) { - index = (nic_state->regs.tpsr << 8); - if (index >= NE2K_PMEM_END) - index -= NE2K_PMEM_SIZE; - if (index + nic_state->regs.tbcr <= NE2K_PMEM_END) { - ne2k_send_packet(dev, nic_state->mem + index, nic_state->regs.tbcr); - } - nic_state->regs.tsr = ENTSR_PTX; - nic_state->regs.isr |= ENISR_TX; - nic_state->regs.cmd &= ~NE2K_TRANSMIT; - ne2k_update_irq(dev); - } - } + + + if (page == 0) { + switch (port) { + case EN0_STARTPG: + nic_state->pgstart = val; + break; + case EN0_STOPPG: + nic_state->pgstop = val; + break; + case EN0_BOUNDARY: + nic_state->boundary = val; + break; + case EN0_TPSR: + nic_state->tpsr = val; + break; + case EN0_TCNTLO: + nic_state->tbcr0 = val; + break; + case EN0_TCNTHI: + nic_state->tbcr1 = val; + break; + case EN0_ISR: + nic_state->isr.val &= ~(val & 0x7f); + ne2k_update_irq(dev); + break; + case EN0_RSARLO: + nic_state->rsar0 = val; + break; + case EN0_RSARHI: + nic_state->rsar1 = val; + break; + case EN0_RCNTLO: + nic_state->rbcr0 = val; + break; + case EN0_RCNTHI: + nic_state->rbcr1 = val; + break; + case EN0_RXCR: + nic_state->rcr.val = val; + break; + case EN0_TXCR: + nic_state->tcr.val = val; + break; + case EN0_DCFG: + nic_state->dcr.val = val; + break; + case EN0_IMR: + nic_state->imr.val = val; + //PrintError("ne2k_write error: write IMR:0x%x\n", (int)val); + ne2k_update_irq(dev); + break; + default: + PrintError("ne2k_write error: invalid port:0x%x\n", port); + return -1; + } + } else if (page == 1) { + switch (port) { + case EN1_PHYS ... EN1_PHYS + 5: + nic_state->mac_addr[port - EN1_PHYS] = val; + break; + case EN1_CURPAG: + nic_state->curpag = val; + break; + case EN1_MULT ... EN1_MULT + 7: + // PrintError("ne2k_write error: write EN_MULT:0x%x\n", (int)val); + nic_state->mcast_addr[port - EN1_MULT] = val; + break; + default: + PrintError("ne2k_write error: invalid port:0x%x\n", port); + return -1; + } + } else if (page == 2) { + switch (port) { + case EN2_LDMA0: + nic_state->clda0 = val; + break; + case EN2_LDMA1: + nic_state->clda1 = val; + break; + case EN2_RNPR: + nic_state->rnpp = val; + break; + case EN2_LNRP: + nic_state->lnpp = val; + break; + case EN2_ACNT0: + nic_state->addcnt0 = val; + break; + case EN2_ACNT1: + nic_state->addcnt1 = val; + break; + default: + PrintError("ne2k_write error: invalid port:0x%x\n", port); + return -1; + } } else { - page = nic_state->regs.cmd >> 6; - if(page == 0){ - switch(port) { - case EN0_STARTPG: - nic_state->regs.pgstart = val; - break; - case EN0_STOPPG: - nic_state->regs.pgstop = val; - break; - case EN0_BOUNDARY: - nic_state->regs.boundary = val; - break; - case EN0_TPSR: - nic_state->regs.tpsr = val; - break; - case EN0_TCNTLO: - nic_state->regs.tbcr = (nic_state->regs.tbcr & 0xff00) | val; - break; - case EN0_TCNTHI: - nic_state->regs.tbcr = (nic_state->regs.tbcr & 0x00ff) | (val << 8); - break; - case EN0_ISR: - nic_state->regs.isr &= ~(val & 0x7f); - ne2k_update_irq(dev); - break; - case EN0_RSARLO: - nic_state->regs.rsar = (nic_state->regs.rsar & 0xff00) | val; - break; - case EN0_RSARHI: - nic_state->regs.rsar = (nic_state->regs.rsar & 0x00ff) | (val << 8); - break; - case EN0_RCNTLO: - nic_state->regs.rbcr = (nic_state->regs.rbcr & 0xff00) | val; - break; - case EN0_RCNTHI: - nic_state->regs.rbcr = (nic_state->regs.rbcr & 0x00ff) | (val << 8); - break; - case EN0_RXCR: - nic_state->regs.rcr = val; - break; - case EN0_TXCR: - nic_state->regs.tcr = val; - case EN0_DCFG: - nic_state->regs.dcr = val; - break; - case EN0_IMR: - nic_state->regs.imr = val; - //PrintError("ne2k_write error: write IMR:0x%x\n", (int)val); - ne2k_update_irq(dev); - break; - default: - PrintError("ne2k_write error: invalid port:0x%x\n", port); - break; - } - } - if(page == 1){ - switch(port) { - case EN1_PHYS ... EN1_PHYS + 5: - nic_state->regs.phys[port - EN1_PHYS] = val; - break; - case EN1_CURPAG: - nic_state->regs.curpag = val; - break; - case EN1_MULT ... EN1_MULT + 7: - // PrintError("ne2k_write error: write EN_MULT:0x%x\n", (int)val); - nic_state->regs.mult[port - EN1_MULT] = val; - break; - default: - PrintError("ne2k_write error: invalid port:0x%x\n", port); - break; - } - } - if(page == 2){ - switch(port) { - case EN2_LDMA0: - nic_state->regs.clda = (nic_state->regs.clda & 0xff00) | val; - break; - case EN2_LDMA1: - nic_state->regs.clda = (nic_state->regs.clda & 0x00ff) | (val << 8); - break; - case EN2_RNPR: - nic_state->regs.rnpp = val; - break; - case EN2_LNRP: - nic_state->regs.lnpp = val; - break; - case EN2_ACNT0: - nic_state->regs.addcnt = (nic_state->regs.addcnt & 0xff00) | val; - break; - case EN2_ACNT1: - nic_state->regs.addcnt = (nic_state->regs.addcnt & 0x00ff) | (val << 8); - break; - default: - PrintError("ne2k_write error: invalid port:0x%x\n", port); - break; - } - } + PrintError("Invalid Register Page Value\n"); + return -1; } - #if TEST_PERFORMANCE - if ((++exit_num) % 50 == 0) - PrintError("Ne2k-Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif return length; } -static int ne2k_ioport_read(ushort_t port, - void * dst, - uint_t length, - struct vm_device *dev) -{ - uchar_t page, ret, offset; - - struct ne2k_context *nic_state = (struct ne2k_context* )dev->private_data; +static int ne2k_std_read(uint16_t port, void * dst, uint_t length, struct vm_device *dev) { + struct ne2k_context * nic_state = (struct ne2k_context *)(dev->private_data); + uint16_t index = port & 0x1f; + uint8_t page = nic_state->cmd.pg_sel; if (length > 1) { - PrintError("ne2k_read error: length %d\n", length); - return length; + PrintError("ne2k_read error: length %d\n", length); + return length; } - offset = port; - port &= 0x1f; - - if (port == 0x10) - return ne2k_data_read(port, dst, length, dev); + if (page == 0) { + + switch (index) { + case EN0_CLDALO: + *(uint8_t *)dst = nic_state->clda0; + break; + case EN0_CLDAHI: + *(uint8_t *)dst = nic_state->clda1; + break; + case EN0_BOUNDARY: + *(uint8_t *)dst = nic_state->boundary; + break; + case EN0_TSR: + *(uint8_t *)dst = nic_state->tsr.val; + break; + case EN0_NCR: + *(uint8_t *)dst = nic_state->ncr; + break; + case EN0_FIFO: + *(uint8_t *)dst = nic_state->fifo; + break; + case EN0_ISR: + *(uint8_t *)dst = nic_state->isr.val; + ne2k_update_irq(dev); + break; + case EN0_CRDALO: + *(uint8_t *)dst = nic_state->crda0; + break; + case EN0_CRDAHI: + *(uint8_t *)dst = nic_state->crda1; + break; + case EN0_RSR: + *(uint8_t *)dst = nic_state->rsr.val; + break; + case EN0_COUNTER0: + *(uint8_t *)dst = nic_state->cntr0; + break; + case EN0_COUNTER1: + *(uint8_t *)dst = nic_state->cntr1; + break; + case EN0_COUNTER2: + *(uint8_t *)dst = nic_state->cntr2; + break; + default: + PrintError("ne2k_read error: invalid port:0x%x\n", port); + return -1; + } - if (port == 0x1f) - return ne2k_reset_port_read(port, dst, length, dev); + } else if (page == 1) { + + switch (index) { + case EN1_PHYS ... EN1_PHYS + 5: + *(uint8_t *)dst = nic_state->mac_addr[index - EN1_PHYS]; + break; + case EN1_CURPAG: + *(uint8_t *)dst = nic_state->curpag; + break; + case EN1_MULT ... EN1_MULT + 7: + *(uint8_t *)dst = nic_state->mcast_addr[index - EN1_MULT]; + break; + default: + PrintError("ne2k_read error: invalid port:0x%x\n", port); + return -1; + } - if (port == EN0_COMMAND) { - ret = nic_state->regs.cmd; + } else if (page == 2) { + + switch (index) { + case EN2_STARTPG: + *(uint8_t *)dst = nic_state->pgstart; + break; + case EN2_STOPPG: + *(uint8_t *)dst = nic_state->pgstop; + break; + case EN2_RNPR: + *(uint8_t *)dst = nic_state->rnpp; + break; + case EN2_LNRP: + *(uint8_t *)dst = nic_state->lnpp; + break; + case EN2_TPSR: + *(uint8_t *)dst = nic_state->tpsr; + break; + case EN2_ACNT0: + *(uint8_t *)dst = nic_state->addcnt0; + break; + case EN2_ACNT1: + *(uint8_t *)dst = nic_state->addcnt1; + break; + case EN2_RCR: + *(uint8_t *)dst = nic_state->rcr.val; + break; + case EN2_TCR: + *(uint8_t *)dst = nic_state->tcr.val; + break; + case EN2_DCR: + *(uint8_t *)dst = nic_state->dcr.val; + break; + case EN2_IMR: + *(uint8_t *)dst = nic_state->imr.val; + break; + default: + PrintError("ne2k_read error: invalid port:0x%x\n", port); + return -1; + } } else { - page = nic_state->regs.cmd >> 6; - if (page == 0){ - switch(port) { - case EN0_CLDALO: - ret = nic_state->regs.clda & 0x00ff; - break; - case EN0_CLDAHI: - ret = (nic_state->regs.clda & 0xff00) >> 8; - break; - case EN0_BOUNDARY: - ret = nic_state->regs.boundary; - break; - case EN0_TSR: - ret = nic_state->regs.tsr; - break; - case EN0_NCR: - ret = nic_state->regs.ncr; - break; - case EN0_FIFO: - ret = nic_state->regs.fifo; - break; - case EN0_ISR: - ret = nic_state->regs.isr; - ne2k_update_irq(dev); - break; - case EN0_CRDALO: - ret = nic_state->regs.crda & 0x00ff; - break; - case EN0_CRDAHI: - ret = (nic_state->regs.crda & 0xff00) >> 8; - break; - case EN0_RSR: - ret = nic_state->regs.rsr; - break; - case EN0_COUNTER0: - ret = nic_state->regs.cntr & 0x000000ff; - break; - case EN0_COUNTER1: - ret = (nic_state->regs.cntr & 0x0000ff00) >> 8; - break; - case EN0_COUNTER2: - ret = (nic_state->regs.cntr & 0x00ff0000) >> 16; - break; - default: - PrintError("ne2k_read error: invalid port:0x%x\n", port); - ret = 0x00; - break; - } - } - if (page == 1){ - switch(port) { - case EN1_PHYS ... EN1_PHYS + 5: - ret = nic_state->regs.phys[port - EN1_PHYS]; - break; - case EN1_CURPAG: - ret = nic_state->regs.curpag; - break; - case EN1_MULT ... EN1_MULT + 7: - ret = nic_state->regs.mult[port - EN1_MULT]; - break; - default: - PrintError("ne2k_read error: invalid port:0x%x\n", port); - ret = 0x00; - break; - } - } - if (page == 2){ - switch(port) { - case EN2_STARTPG: - ret = nic_state->regs.pgstart; - break; - case EN2_STOPPG: - ret = nic_state->regs.pgstop; - break; - case EN2_RNPR: - ret = nic_state->regs.rnpp; - break; - case EN2_LNRP: - ret = nic_state->regs.lnpp; - break; - case EN2_TPSR: - ret = nic_state->regs.tpsr; - break; - case EN2_ACNT0: - ret = nic_state->regs.addcnt & 0x00ff; - break; - case EN2_ACNT1: - ret = (nic_state->regs.addcnt & 0xff00) >> 8; - break; - case EN2_RCR: - ret = nic_state->regs.rcr; - break; - case EN2_TCR: - ret = nic_state->regs.tcr; - break; - case EN2_DCR: - ret = nic_state->regs.dcr; - break; - case EN2_IMR: - ret = nic_state->regs.imr; - break; - default: - PrintError("ne2k_read error: invalid port:0x%x\n", port); - ret = 0x00; - break; - } - } + PrintError("Invalid Register Page Value\n"); + return -1; } - memcpy(dst, &ret, 1); - - PrintDebug("ne2k_read: port:0x%x val: 0x%x\n", offset, (int)ret); - - #if TEST_PERFORMANCE - if ((++exit_num) % 50 == 0) - PrintError("Ne2k-Ne2k: Total Exit: %d, INT: %d\n", (int)exit_num, int_num); - #endif + + PrintDebug("ne2k_read: port:0x%x val: 0x%x\n", port, *(uint8_t *)dst); return length; - } -static int ne2k_start_device(struct vm_device *dev) -{ - PrintDebug("vnic: start device\n"); +static int ne2k_start_device(struct vm_device * dev) { + PrintDebug("vnic: start device\n"); - return 0; + return 0; } -static int ne2k_stop_device(struct vm_device *dev) -{ - PrintDebug("vnic: stop device\n"); +static int ne2k_stop_device(struct vm_device * dev) { + PrintDebug("vnic: stop device\n"); - return 0; + return 0; } -static void init_global_setting() -{ - int i; - - V3_Register_pkt_event(&netif_input); - - for (i = 0; i < NUM_NE2K; i++) - ne2ks[i] = NULL; -} -static int ne2k_hook_iospace(struct vm_device *vmdev, addr_t base_addr, int size, int type, void *data) -{ - int i; - if (base_addr <= 0) - return -1; +static int ne2k_init_device(struct vm_device * dev) { + struct ne2k_context * nic_state = (struct ne2k_context *)(dev->private_data); + + PrintDebug("Initializing NE2K\n"); - PrintDebug("In NIC%d: Hook IO space starting from %x\n", nic_no, (int) base_addr); + init_ne2k_context(dev); - for (i = 0; i < 16; i++){ - v3_dev_hook_io(vmdev, base_addr + i, &ne2k_ioport_read, &ne2k_ioport_write); - } - v3_dev_hook_io(vmdev, base_addr + NIC_DATA_PORT, &ne2k_data_read, &ne2k_data_write); - v3_dev_hook_io(vmdev, base_addr + NIC_RESET_PORT, &ne2k_reset_port_read, &ne2k_reset_port_write); + if (nic_state->pci_bus == NULL) { + PrintDebug("NE2k: Not attached to pci\n"); - return 0; + v3_dev_hook_io(dev, NIC_REG_BASE_PORT , &ne2k_cmd_read, &ne2k_cmd_write); -} + for (i = 1; i < 16; i++){ + v3_dev_hook_io(dev, NIC_REG_BASE_PORT + i, &ne2k_std_read, &ne2k_std_write); + } + + v3_dev_hook_io(dev, NIC_DATA_PORT, &ne2k_data_read, &ne2k_data_write); + v3_dev_hook_io(dev, NIC_RESET_PORT, &ne2k_reset_read, &ne2k_reset_write); + + } else { + + struct v3_pci_bar bars[6]; + struct pci_device * pci_dev = NULL; + int i; -static int ne2k_init_device(struct vm_device * vmdev) -{ - struct vm_device *pci = NULL; - struct pci_device *pdev = NULL; - struct ne2k_context *nic_state = (struct ne2k_context *)vmdev->private_data; + PrintDebug("NE2k: PCI Enabled\n"); - PrintDebug("ne2k%d: init_device\n", nic_no); + for (i = 0; i < 6; i++) { + bars[i].type = PCI_BAR_NONE; + } + + bars[0].type = PCI_BAR_IO; + bars[0].default_base_port = NIC_REG_BASE_PORT; + bars[0].num_ports = 256; + + bars[0].io_read = ne2k_pci_read; + bars[0].io_write = ne2k_pci_write; - if (nic_no == 0) // only initiate once - init_global_setting(); + pci_dev = v3_pci_register_device(nic_state->pci_bus, PCI_STD_DEVICE, 0, -1, 0, + "NE2000", bars, + pci_config_update, NULL, NULL, dev); - init_ne2k_context(vmdev); + if (pci_dev == NULL) { + PrintError("Failed to register NE2K with PCI\n"); + return -1; + } + + pci_dev->config_header.vendor_id = 0x10ec; + pci_dev->config_header.device_id = 0x8029; + pci_dev->config_header.revision = 0x00; - pci = nic_state->pci; + pci_dev->config_header.subclass = 0x00; + pci_dev->config_header.class = 0x02; + pci_dev->config_header.header_type = 0x00; - if (pci != NULL) { - PrintDebug("Ne2k: attach ne2k to the pci %p\n", pci); - pdev = pci_ne2k_init(vmdev, pci, 0, -1, 0, &ne2k_ioport_read, &ne2k_ioport_write); - if (pdev == NULL) - PrintError("Ne2k: initiate failure, failure to attach ne2k to the bus %p\n", pci); - } else { - PrintError("Ne2k: Failure to initiate Ne2k , no pci\n"); - ne2k_hook_iospace(vmdev, NE2K_DEF_BASE_ADDR, 100, 0, NULL); - } + pci_dev->config_header.intr_line = 11; + pci_dev->config_header.intr_pin = 1; - nic_state->pci_dev = pdev; - ne2ks[nic_no ++] = vmdev; + nic_state->pci_dev = pci_dev; + } + - #ifdef DEBUG_NE2K - dump_state(vmdev); - #endif +#ifdef CONFIG_DEBUG_NE2K + dump_state(dev); +#endif - return 0; + return 0; } -static int ne2k_deinit_device(struct vm_device *vmdev) -{ - int i; +static int ne2k_deinit_device(struct vm_device *dev) { + int i; - for (i = 0; i<16; i++){ - v3_dev_unhook_io(vmdev, NE2K_DEF_BASE_ADDR + i); - } - - v3_dev_unhook_io(vmdev, NE2K_DEF_BASE_ADDR + NIC_DATA_PORT); - v3_dev_unhook_io(vmdev, NE2K_DEF_BASE_ADDR + NIC_RESET_PORT); + for (i = 0; i < 16; i++){ + v3_dev_unhook_io(dev, NIC_REG_BASE_PORT + i); + } + + v3_dev_unhook_io(dev, NIC_DATA_PORT); + v3_dev_unhook_io(dev, NIC_RESET_PORT); - return 0; + return 0; } -static struct vm_device_ops dev_ops = { - .init = ne2k_init_device, - .deinit = ne2k_deinit_device, - .reset = ne2k_reset_device, - .start = ne2k_start_device, - .stop = ne2k_stop_device, +static struct v3_device_ops dev_ops = { + .init = ne2k_init_device, + .deinit = ne2k_deinit_device, + .reset = ne2k_reset_device, + .start = ne2k_start_device, + .stop = ne2k_stop_device, }; -struct vm_device *v3_create_ne2k(struct vm_device *pci) -{ - struct ne2k_context * nic_state = V3_Malloc(sizeof(struct ne2k_context)); +struct vm_device * v3_create_ne2k(struct vm_device * pci) { + struct ne2k_context * nic_state = V3_Malloc(sizeof(struct ne2k_context)); - memset(nic_state, 0, sizeof(struct ne2k_context)); + memset(nic_state, 0, sizeof(struct ne2k_context)); - PrintDebug("NE2K internal at %p\n", (void *)nic_state); + nic_state->pci_bus = pci; - nic_state->pci = pci; - - struct vm_device *device = v3_create_device("NE2K", &dev_ops, nic_state); - - return device; + struct vm_device * device = v3_create_device("NE2K", &dev_ops, nic_state); + + return device; }