/* * fxp.c * * This file contains an ethernet device driver for Intel 82557, 82558, * 82559, 82550, and 82562 fast ethernet controllers. * * Created: Nov 2004 by Philip Homburg */ #include #include #include #include #include #include #include #include #include #include #define debug 0 #define RAND_UPDATE /**/ #define printW() ((void)0) #include "assert.h" #include "fxp.h" #include "mii.h" /* Number of receive buffers */ #define N_RX_BUF 40 /* Number of transmit buffers */ #define N_TX_BUF 4 /* I/O vectors are handled IOVEC_NR entries at a time. */ #define IOVEC_NR 16 /* Configuration */ #define FXP_ENVVAR "FXPETH" struct pcitab { u16_t vid; u16_t did; int checkclass; }; PRIVATE struct pcitab pcitab_fxp[]= { { 0x8086, 0x1229, 0 }, /* Intel 82557, etc. */ { 0x8086, 0x2449, 0 }, /* Intel 82801BA/BAM/CA/CAM */ { 0x8086, 0x103d, 0 }, /* Intel 82801DB */ { 0x8086, 0x1064, 0 }, /* Intel 82562 */ { 0x0000, 0x0000, 0 } }; typedef int irq_hook_t; /* ignore interrupt for the moment */ #define interrupt(x) 0 PRIVATE union tmpbuf { char pad[4096]; struct cbl_conf cc; struct ias ias; } *tmpbufp; typedef struct fxp { port_t fxp_base_port; int fxp_mode; int fxp_got_int; int fxp_send_int; int fxp_flags; int fxp_client; int fxp_features; /* Needed? */ int fxp_irq; int fxp_type; /* What kind of hardware */ int fxp_ee_addrlen; /* #EEPROM address bits */ int fxp_tx_alive; int fxp_need_reset; /* Rx */ vir_bytes fxp_read_s; int fxp_rx_nbuf; int fxp_rx_bufsize; struct rfd *fxp_rx_buf; phys_bytes fxp_rx_busaddr; int fxp_rx_head; int fxp_rx_need_restart; int fxp_need_conf; /* Re-configure after draining send * queue */ /* Tx */ int fxp_tx_nbuf; int fxp_tx_bufsize; struct tx *fxp_tx_buf; phys_bytes fxp_tx_busaddr; int fxp_tx_idle; int fxp_tx_head; int fxp_tx_tail; int fxp_tx_threshold; /* Link status */ int fxp_report_link; int fxp_link_up; int fxp_mii_busy; u16_t fxp_mii_scr; /* PCI related */ int fxp_seen; /* TRUE iff device available */ u8_t fxp_pcibus; u8_t fxp_pcidev; u8_t fxp_pcifunc; /* 'large' items */ irq_hook_t fxp_hook; ether_addr_t fxp_address; message fxp_rx_mess; message fxp_tx_mess; struct sc fxp_stat; u8_t fxp_conf_bytes[CC_BYTES_NR]; char fxp_name[sizeof("fxp#n")]; iovec_t fxp_iovec[IOVEC_NR]; iovec_s_t fxp_iovec_s[IOVEC_NR]; } fxp_t; /* fxp_mode */ #define FM_DISABLED 0x0 #define FM_ENABLED 0x1 /* fxp_flags */ #define FF_EMPTY 0x000 #define FF_PACK_SENT 0x001 #define FF_PACK_RECV 0x002 #define FF_SEND_AVAIL 0x004 #define FF_READING 0x010 #define FF_PROMISC 0x040 #define FF_MULTI 0x080 #define FF_BROAD 0x100 #define FF_ENABLED 0x200 /* fxp_features */ #define FFE_NONE 0x0 /* fxp_type */ #define FT_UNKNOWN 0x0 #define FT_82557 0x1 #define FT_82558A 0x2 #define FT_82559 0x4 #define FT_82801 0x8 PRIVATE int fxp_instance; PRIVATE fxp_t *fxp_state; PRIVATE timer_t fxp_watchdog; PRIVATE u32_t system_hz; #define fxp_inb(port, offset) (do_inb((port) + (offset))) #define fxp_inl(port, offset) (do_inl((port) + (offset))) #define fxp_outb(port, offset, value) (do_outb((port) + (offset), (value))) #define fxp_outl(port, offset, value) (do_outl((port) + (offset), (value))) _PROTOTYPE( static void fxp_init, (message *mp) ); _PROTOTYPE( static void fxp_pci_conf, (void) ); _PROTOTYPE( static int fxp_probe, (fxp_t *fp, int skip) ); _PROTOTYPE( static void fxp_conf_hw, (fxp_t *fp) ); _PROTOTYPE( static void fxp_init_hw, (fxp_t *fp) ); _PROTOTYPE( static void fxp_init_buf, (fxp_t *fp) ); _PROTOTYPE( static void fxp_reset_hw, (fxp_t *fp) ); _PROTOTYPE( static void fxp_confaddr, (fxp_t *fp) ); _PROTOTYPE( static void fxp_rec_mode, (fxp_t *fp) ); _PROTOTYPE( static void fxp_writev_s, (const message *mp, int from_int) ); _PROTOTYPE( static void fxp_readv_s, (message *mp, int from_int) ); _PROTOTYPE( static void fxp_do_conf, (fxp_t *fp) ); _PROTOTYPE( static void fxp_cu_ptr_cmd, (fxp_t *fp, int cmd, phys_bytes bus_addr, int check_idle) ); _PROTOTYPE( static void fxp_ru_ptr_cmd, (fxp_t *fp, int cmd, phys_bytes bus_addr, int check_idle) ); _PROTOTYPE( static void fxp_restart_ru, (fxp_t *fp) ); _PROTOTYPE( static void fxp_getstat_s, (message *mp) ); _PROTOTYPE( static void fxp_handler, (fxp_t *fp) ); _PROTOTYPE( static void fxp_check_ints, (fxp_t *fp) ); _PROTOTYPE( static void fxp_watchdog_f, (timer_t *tp) ); _PROTOTYPE( static int fxp_link_changed, (fxp_t *fp) ); _PROTOTYPE( static void fxp_report_link, (fxp_t *fp) ); _PROTOTYPE( static void reply, (fxp_t *fp) ); _PROTOTYPE( static void mess_reply, (message *req, message *reply) ); _PROTOTYPE( static u16_t eeprom_read, (fxp_t *fp, int reg) ); _PROTOTYPE( static void eeprom_addrsize, (fxp_t *fp) ); _PROTOTYPE( static u16_t mii_read, (fxp_t *fp, int reg) ); _PROTOTYPE( static u8_t do_inb, (port_t port) ); _PROTOTYPE( static u32_t do_inl, (port_t port) ); _PROTOTYPE( static void do_outb, (port_t port, u8_t v) ); _PROTOTYPE( static void do_outl, (port_t port, u32_t v) ); _PROTOTYPE( static void tell_dev, (vir_bytes start, size_t size, int pci_bus, int pci_dev, int pci_func) ); PRIVATE void handle_hw_intr(void) { int r; fxp_t *fp; fp= fxp_state; if (fp->fxp_mode != FM_ENABLED) return; fxp_handler(fp); r= sys_irqenable(&fp->fxp_hook); if (r != OK) { panic("unable enable interrupts: %d", r); } if (!fp->fxp_got_int) return; fp->fxp_got_int= 0; assert(fp->fxp_flags & FF_ENABLED); fxp_check_ints(fp); } /* SEF functions and variables. */ FORWARD _PROTOTYPE( void sef_local_startup, (void) ); FORWARD _PROTOTYPE( int sef_cb_init_fresh, (int type, sef_init_info_t *info) ); FORWARD _PROTOTYPE( void sef_cb_signal_handler, (int signo) ); /*===========================================================================* * main * *===========================================================================*/ int main(int argc, char *argv[]) { message m; int ipc_status; int r; /* SEF local startup. */ env_setargs(argc, argv); sef_local_startup(); while (TRUE) { if ((r= netdriver_receive(ANY, &m, &ipc_status)) != OK) panic("netdriver_receive failed: %d", r); if (is_ipc_notify(ipc_status)) { switch (_ENDPOINT_P(m.m_source)) { case HARDWARE: handle_hw_intr(); break; case CLOCK: expire_timers(m.NOTIFY_TIMESTAMP); break; default: panic(" illegal notify from: %d", m.m_source); } /* get new message */ continue; } switch (m.m_type) { case DL_WRITEV_S: fxp_writev_s(&m, FALSE); break; case DL_READV_S: fxp_readv_s(&m, FALSE); break; case DL_CONF: fxp_init(&m); break; case DL_GETSTAT_S: fxp_getstat_s(&m); break; default: panic(" illegal message: %d", m.m_type); } } } /*===========================================================================* * sef_local_startup * *===========================================================================*/ PRIVATE void sef_local_startup() { /* Register init callbacks. */ sef_setcb_init_fresh(sef_cb_init_fresh); sef_setcb_init_lu(sef_cb_init_fresh); sef_setcb_init_restart(sef_cb_init_fresh); /* Register live update callbacks. */ sef_setcb_lu_prepare(sef_cb_lu_prepare_always_ready); sef_setcb_lu_state_isvalid(sef_cb_lu_state_isvalid_workfree); /* Register signal callbacks. */ sef_setcb_signal_handler(sef_cb_signal_handler); /* Let SEF perform startup. */ sef_startup(); } /*===========================================================================* * sef_cb_init_fresh * *===========================================================================*/ PRIVATE int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info)) { /* Initialize the fxp driver. */ long v; int r; vir_bytes ft; system_hz = sys_hz(); v = 0; (void) env_parse("instance", "d", 0, &v, 0, 255); fxp_instance = (int) v; ft = sizeof(*fxp_state); if(!(fxp_state = alloc_contig(ft, 0, NULL))) panic("couldn't allocate table: %d", ENOMEM); memset(fxp_state, 0, ft); if((r=tsc_calibrate()) != OK) panic("tsc_calibrate failed: %d", r); /* Announce we are up! */ netdriver_announce(); return(OK); } /*===========================================================================* * sef_cb_signal_handler * *===========================================================================*/ PRIVATE void sef_cb_signal_handler(int signo) { port_t port; fxp_t *fp; /* Only check for termination signal, ignore anything else. */ if (signo != SIGTERM) return; fp= fxp_state; if (fp->fxp_mode == FM_ENABLED && (fp->fxp_flags & FF_ENABLED)) { port= fp->fxp_base_port; /* Reset device */ if (debug) printf("%s: resetting device\n", fp->fxp_name); fxp_outl(port, CSR_PORT, CP_CMD_SOFT_RESET); } exit(0); } /*===========================================================================* * fxp_init * *===========================================================================*/ static void fxp_init(mp) message *mp; { static int first_time= 1; fxp_t *fp; message reply_mess; if (first_time) { first_time= 0; fxp_pci_conf(); /* Configure PCI devices. */ init_timer(&fxp_watchdog); set_timer(&fxp_watchdog, system_hz, fxp_watchdog_f, 0); } fp= fxp_state; if (fp->fxp_mode == FM_DISABLED) { /* This is the default, try to (re)locate the device. */ fxp_conf_hw(fp); if (fp->fxp_mode == FM_DISABLED) { /* Probe failed, or the device is configured off. */ reply_mess.m_type= DL_CONF_REPLY; reply_mess.DL_STAT= ENXIO; mess_reply(mp, &reply_mess); return; } if (fp->fxp_mode == FM_ENABLED) fxp_init_hw(fp); fxp_report_link(fp); } assert(fp->fxp_mode == FM_ENABLED); assert(fp->fxp_flags & FF_ENABLED); fp->fxp_flags &= ~(FF_PROMISC | FF_MULTI | FF_BROAD); if (mp->DL_MODE & DL_PROMISC_REQ) fp->fxp_flags |= FF_PROMISC; if (mp->DL_MODE & DL_MULTI_REQ) fp->fxp_flags |= FF_MULTI; if (mp->DL_MODE & DL_BROAD_REQ) fp->fxp_flags |= FF_BROAD; fxp_rec_mode(fp); reply_mess.m_type = DL_CONF_REPLY; reply_mess.DL_STAT = OK; *(ether_addr_t *) reply_mess.DL_HWADDR = fp->fxp_address; mess_reply(mp, &reply_mess); } /*===========================================================================* * fxp_pci_conf * *===========================================================================*/ static void fxp_pci_conf() { static char envvar[] = FXP_ENVVAR "#"; static char envfmt[] = "*:d.d.d"; fxp_t *fp; long v; fp= fxp_state; strcpy(fp->fxp_name, "fxp#0"); fp->fxp_name[4] += fxp_instance; fp->fxp_seen= FALSE; fp->fxp_features= FFE_NONE; envvar[sizeof(FXP_ENVVAR)-1]= '0'+fxp_instance; #if 0 if (getenv(envvar) != NULL) { if (strcmp(getenv(envvar), "off") == 0) { fp->fxp_pcibus= 255; } if (!env_prefix(envvar, "pci")) env_panic(envvar); } #endif pci_init(); if (fp->fxp_pcibus == 255) return; v= 0; #if 0 (void) env_parse(envvar, envfmt, 1, &v, 0, 255); #endif fp->fxp_pcibus= v; v= 0; #if 0 (void) env_parse(envvar, envfmt, 2, &v, 0, 255); #endif fp->fxp_pcidev= v; v= 0; #if 0 (void) env_parse(envvar, envfmt, 3, &v, 0, 255); #endif fp->fxp_pcifunc= v; if (fxp_probe(fp, fxp_instance)) fp->fxp_seen= TRUE; } /*===========================================================================* * fxp_probe * *===========================================================================*/ static int fxp_probe(fxp_t *fp, int skip) { int i, r, devind, just_one; u16_t vid, did; u32_t bar; u8_t ilr, rev; char *dname, *str; if ((fp->fxp_pcibus | fp->fxp_pcidev | fp->fxp_pcifunc) != 0) { /* Look for specific PCI device */ r= pci_find_dev(fp->fxp_pcibus, fp->fxp_pcidev, fp->fxp_pcifunc, &devind); if (r == 0) { printf("%s: no PCI device found at %d.%d.%d\n", fp->fxp_name, fp->fxp_pcibus, fp->fxp_pcidev, fp->fxp_pcifunc); return FALSE; } pci_ids(devind, &vid, &did); just_one= TRUE; } else { r= pci_first_dev(&devind, &vid, &did); if (r == 0) return FALSE; just_one= FALSE; } for(;;) { for (i= 0; pcitab_fxp[i].vid != 0; i++) { if (pcitab_fxp[i].vid != vid) continue; if (pcitab_fxp[i].did != did) continue; if (pcitab_fxp[i].checkclass) { panic("fxp_probe: class check not implemented"); } break; } if (pcitab_fxp[i].vid != 0) { if (just_one || !skip) break; skip--; } if (just_one) { printf( "%s: wrong PCI device (%04x/%04x) found at %d.%d.%d\n", fp->fxp_name, vid, did, fp->fxp_pcibus, fp->fxp_pcidev, fp->fxp_pcifunc); return FALSE; } r= pci_next_dev(&devind, &vid, &did); if (!r) return FALSE; } dname= pci_dev_name(vid, did); #if VERBOSE if (!dname) dname= "unknown device"; printf("%s: %s (%04x/%04x) at %s\n", fp->fxp_name, dname, vid, did, pci_slot_name(devind)); #endif pci_reserve(devind); bar= pci_attr_r32(devind, PCI_BAR_2) & 0xffffffe0; if (bar < 0x400) { panic("fxp_probe: base address is not properly configured"); } fp->fxp_base_port= bar; ilr= pci_attr_r8(devind, PCI_ILR); fp->fxp_irq= ilr; if (debug) { printf("%s: using I/O address 0x%lx, IRQ %d\n", fp->fxp_name, (unsigned long)bar, ilr); } rev= pci_attr_r8(devind, PCI_REV); str= NULL; fp->fxp_type= FT_UNKNOWN; switch(rev) { case FXP_REV_82557A: str= "82557A"; /* 0x01 */ fp->fxp_type= FT_82557; break; case FXP_REV_82557B: str= "82557B"; break; /* 0x02 */ case FXP_REV_82557C: str= "82557C"; break; /* 0x03 */ case FXP_REV_82558A: str= "82558A"; /* 0x04 */ fp->fxp_type= FT_82558A; break; case FXP_REV_82558B: str= "82558B"; /* 0x05 */ fp->fxp_type= FT_82559; break; case FXP_REV_82559A: str= "82559A"; break; /* 0x06 */ case FXP_REV_82559B: str= "82559B"; break; /* 0x07 */ case FXP_REV_82559C: str= "82559C"; /* 0x08 */ fp->fxp_type= FT_82559; break; case FXP_REV_82559ERA: str= "82559ER-A"; /* 0x09 */ fp->fxp_type= FT_82559; break; case FXP_REV_82550_1: str= "82550(1)"; /* 0x0C */ fp->fxp_type= FT_82559; break; case FXP_REV_82550_2: str= "82550(2)"; /* 0x0D */ fp->fxp_type= FT_82559; break; case FXP_REV_82550_3: str= "82550(3)"; /* 0x0E */ fp->fxp_type= FT_82559; break; case FXP_REV_82551_1: str= "82551(1)"; /* 0x0F */ fp->fxp_type= FT_82559; break; case FXP_REV_82551_2: str= "82551(2)"; /* 0x10 */ fp->fxp_type= FT_82559; break; case FXP_REV_82801DB: str= "82801DB"; /* 0x81 */ fp->fxp_type= FT_82801; break; } #if VERBOSE if (str) printf("%s: device revision: %s\n", fp->fxp_name, str); else printf("%s: unknown revision: 0x%x\n", fp->fxp_name, rev); #endif if (fp->fxp_type == FT_UNKNOWN) { printf("fxp_probe: device is not supported by this driver\n"); return FALSE; } return TRUE; } /*===========================================================================* * fxp_conf_hw * *===========================================================================*/ static void fxp_conf_hw(fxp_t *fp) { int i; int mwi, ext_stat1, ext_stat2, lim_fifo, i82503, fc; fp->fxp_mode= FM_DISABLED; /* Superfluous */ if (!fp->fxp_seen) return; /* PCI device is present */ fp->fxp_mode= FM_ENABLED; fp->fxp_flags= FF_EMPTY; fp->fxp_got_int= 0; fp->fxp_send_int= 0; fp->fxp_ee_addrlen= 0; /* Unknown */ fp->fxp_need_reset= 0; fp->fxp_report_link= 0; fp->fxp_link_up= -1; /* Unknown */ fp->fxp_mii_busy= 0; fp->fxp_read_s= 0; fp->fxp_rx_need_restart= 0; fp->fxp_need_conf= 0; fp->fxp_tx_head= 0; fp->fxp_tx_tail= 0; fp->fxp_tx_alive= 0; fp->fxp_tx_threshold= TXTT_MIN; /* Try to come up with a sensible configuration for the current * device. Unfortunately every device is different, defaults are * not always zero, and some fields are re-used with a completely * different interpretation. We start out with a sensible default * for all devices and then add device specific changes. */ fp->fxp_conf_bytes[0]= CC_BYTES_NR; fp->fxp_conf_bytes[1]= CTL_DEFAULT | CRL_DEFAULT; fp->fxp_conf_bytes[2]= CAI_DEFAULT; fp->fxp_conf_bytes[3]= 0; fp->fxp_conf_bytes[4]= 0; fp->fxp_conf_bytes[5]= 0; fp->fxp_conf_bytes[6]= CCB6_ESC | CCB6_ETCB | CCB6_RES; fp->fxp_conf_bytes[7]= CUR_1; fp->fxp_conf_bytes[8]= CCB8_503_MII; fp->fxp_conf_bytes[9]= 0; fp->fxp_conf_bytes[10]= CLB_NORMAL | CPAL_DEFAULT | CCB10_NSAI | CCB10_RES1; fp->fxp_conf_bytes[11]= 0; fp->fxp_conf_bytes[12]= CIS_DEFAULT; fp->fxp_conf_bytes[13]= CCB13_DEFAULT; fp->fxp_conf_bytes[14]= CCB14_DEFAULT; fp->fxp_conf_bytes[15]= CCB15_RES1 | CCB15_RES2; fp->fxp_conf_bytes[16]= CCB16_DEFAULT; fp->fxp_conf_bytes[17]= CCB17_DEFAULT; fp->fxp_conf_bytes[18]= CCB18_RES1 | CCB18_PFCT | CCB18_PE; fp->fxp_conf_bytes[19]= CCB19_FDPE; fp->fxp_conf_bytes[20]= CCB20_PFCL | CCB20_RES1; fp->fxp_conf_bytes[21]= CCB21_RES21; #if VERBOSE for (i= 0; ifxp_conf_bytes[i]); printf("\n"); #endif mwi= 0; /* Do we want "Memory Write and Invalidate"? */ ext_stat1= 0; /* Do we want extended statistical counters? */ ext_stat2= 0; /* Do we want even more statistical counters? */ lim_fifo= 0; /* Limit number of frame in TX FIFO */ i82503= 0; /* Older 10 Mbps interface on the 82557 */ fc= 0; /* Flow control */ switch(fp->fxp_type) { case FT_82557: if (i82503) { fp->fxp_conf_bytes[8] &= ~CCB8_503_MII; fp->fxp_conf_bytes[15] |= CCB15_CRSCDT; } break; case FT_82558A: case FT_82559: case FT_82801: if (mwi) fp->fxp_conf_bytes[3] |= CCB3_MWIE; if (ext_stat1) fp->fxp_conf_bytes[6] &= ~CCB6_ESC; if (ext_stat2) fp->fxp_conf_bytes[6] &= ~CCB6_TCOSC; if (lim_fifo) fp->fxp_conf_bytes[7] |= CCB7_2FFIFO; if (fc) { /* From FreeBSD driver */ fp->fxp_conf_bytes[16]= 0x1f; fp->fxp_conf_bytes[17]= 0x01; fp->fxp_conf_bytes[19] |= CCB19_FDRSTAFC | CCB19_FDRSTOFC; } fp->fxp_conf_bytes[18] |= CCB18_LROK; if (fp->fxp_type == FT_82801) { fp->fxp_conf_bytes[6] = 0xba; /* ctrl 1 */ fp->fxp_conf_bytes[15] = 0x48; /* promiscuous */ fp->fxp_conf_bytes[21] = 0x05; /* mc_all */ } break; default: panic("fxp_conf_hw: bad device type: %d", fp->fxp_type); } #if VERBOSE for (i= 0; ifxp_conf_bytes[i]); printf("\n"); #endif } /*===========================================================================* * fxp_init_hw * *===========================================================================*/ static void fxp_init_hw(fp) fxp_t *fp; { int i, r, isr; port_t port; u32_t bus_addr; port= fp->fxp_base_port; fxp_init_buf(fp); fp->fxp_flags = FF_EMPTY; fp->fxp_flags |= FF_ENABLED; /* Set the interrupt handler and policy. Do not automatically * reenable interrupts. Return the IRQ line number on interrupts. */ fp->fxp_hook = fp->fxp_irq; r= sys_irqsetpolicy(fp->fxp_irq, 0, &fp->fxp_hook); if (r != OK) panic("sys_irqsetpolicy failed: %d", r); fxp_reset_hw(fp); r= sys_irqenable(&fp->fxp_hook); if (r != OK) panic("sys_irqenable failed: %d", r); /* Reset PHY? */ fxp_do_conf(fp); /* Set pointer to statistical counters */ r= sys_umap(SELF, VM_D, (vir_bytes)&fp->fxp_stat, sizeof(fp->fxp_stat), &bus_addr); if (r != OK) panic("sys_umap failed: %d", r); fxp_cu_ptr_cmd(fp, SC_CU_LOAD_DCA, bus_addr, TRUE /* check idle */); /* Ack previous interrupts */ isr= fxp_inb(port, SCB_INT_STAT); fxp_outb(port, SCB_INT_STAT, isr); /* Enable interrupts */ fxp_outb(port, SCB_INT_MASK, 0); fxp_ru_ptr_cmd(fp, SC_RU_START, fp->fxp_rx_busaddr, TRUE /* check idle */); fxp_confaddr(fp); if (debug) { printf("%s: Ethernet address ", fp->fxp_name); for (i= 0; i < 6; i++) { printf("%x%c", fp->fxp_address.ea_addr[i], i < 5 ? ':' : '\n'); } } } /*===========================================================================* * fxp_init_buf * *===========================================================================*/ static void fxp_init_buf(fp) fxp_t *fp; { size_t rx_totbufsize, tx_totbufsize, tot_bufsize, alloc_bufsize; char *alloc_buf; phys_bytes buf; int i, r; struct rfd *rfdp; struct tx *txp; phys_bytes ph; fp->fxp_rx_nbuf= N_RX_BUF; rx_totbufsize= fp->fxp_rx_nbuf * sizeof(struct rfd); fp->fxp_rx_bufsize= rx_totbufsize; fp->fxp_tx_nbuf= N_TX_BUF; tx_totbufsize= fp->fxp_tx_nbuf * sizeof(struct tx); fp->fxp_tx_bufsize= tx_totbufsize; tot_bufsize= sizeof(*tmpbufp) + tx_totbufsize + rx_totbufsize; if (tot_bufsize % 4096) tot_bufsize += 4096 - (tot_bufsize % 4096); alloc_bufsize= tot_bufsize; alloc_buf= alloc_contig(alloc_bufsize, AC_ALIGN4K, &ph); if (alloc_buf == NULL) { panic("fxp_init_buf: unable to alloc_contig size: %d", alloc_bufsize); } buf= (phys_bytes)alloc_buf; tell_dev((vir_bytes)buf, tot_bufsize, 0, 0, 0); tmpbufp= (union tmpbuf *)buf; fp->fxp_rx_buf= (struct rfd *)&tmpbufp[1]; r= sys_umap(SELF, VM_D, (vir_bytes)fp->fxp_rx_buf, rx_totbufsize, &fp->fxp_rx_busaddr); if (r != OK) panic("sys_umap failed: %d", r); #if 0 printf("fxp_init_buf: got phys 0x%x for vir 0x%x\n", fp->fxp_rx_busaddr, fp->fxp_rx_buf); #endif for (i= 0, rfdp= fp->fxp_rx_buf; ifxp_rx_nbuf; i++, rfdp++) { rfdp->rfd_status= 0; rfdp->rfd_command= 0; if (i != fp->fxp_rx_nbuf-1) { r= sys_umap(SELF, VM_D, (vir_bytes)&rfdp[1], sizeof(rfdp[1]), &rfdp->rfd_linkaddr); if (r != OK) panic("sys_umap failed: %d", r); } else { rfdp->rfd_linkaddr= fp->fxp_rx_busaddr; rfdp->rfd_command |= RFDC_EL; } rfdp->rfd_reserved= 0; rfdp->rfd_res= 0; rfdp->rfd_size= sizeof(rfdp->rfd_buf); } fp->fxp_rx_head= 0; fp->fxp_tx_buf= (struct tx *)((char *)fp->fxp_rx_buf+rx_totbufsize); r= sys_umap(SELF, VM_D, (vir_bytes)fp->fxp_tx_buf, (phys_bytes)tx_totbufsize, &fp->fxp_tx_busaddr); if (r != OK) panic("sys_umap failed: %d", r); for (i= 0, txp= fp->fxp_tx_buf; ifxp_tx_nbuf; i++, txp++) { txp->tx_status= 0; txp->tx_command= TXC_EL | CBL_NOP; /* Just in case */ if (i != fp->fxp_tx_nbuf-1) { r= sys_umap(SELF, VM_D, (vir_bytes)&txp[1], (phys_bytes)sizeof(txp[1]), &txp->tx_linkaddr); if (r != OK) panic("sys_umap failed: %d", r); } else { txp->tx_linkaddr= fp->fxp_tx_busaddr; } txp->tx_tbda= TX_TBDA_NIL; txp->tx_size= 0; txp->tx_tthresh= fp->fxp_tx_threshold; txp->tx_ntbd= 0; } fp->fxp_tx_idle= 1; } /*===========================================================================* * fxp_reset_hw * *===========================================================================*/ static void fxp_reset_hw(fp) fxp_t *fp; { /* Inline the function in init? */ port_t port; port= fp->fxp_base_port; /* Reset device */ fxp_outl(port, CSR_PORT, CP_CMD_SOFT_RESET); tickdelay(micros_to_ticks(CSR_PORT_RESET_DELAY)); /* Disable interrupts */ fxp_outb(port, SCB_INT_MASK, SIM_M); /* Set CU base to zero */ fxp_cu_ptr_cmd(fp, SC_CU_LOAD_BASE, 0, TRUE /* check idle */); /* Set RU base to zero */ fxp_ru_ptr_cmd(fp, SC_RU_LOAD_BASE, 0, TRUE /* check idle */); } /*===========================================================================* * fxp_confaddr * *===========================================================================*/ static void fxp_confaddr(fxp_t *fp) { static char eakey[]= FXP_ENVVAR "#_EA"; static char eafmt[]= "x:x:x:x:x:x"; int i, r; u32_t bus_addr; long v; /* User defined ethernet address? */ eakey[sizeof(FXP_ENVVAR)-1]= '0' + fxp_instance; for (i= 0; i < 6; i++) { if (env_parse(eakey, eafmt, i, &v, 0x00L, 0xFFL) != EP_SET) break; fp->fxp_address.ea_addr[i]= v; } if (i != 0 && i != 6) env_panic(eakey); /* It's all or nothing */ if (i == 0) { /* Get ethernet address from EEPROM */ for (i= 0; i<3; i++) { v= eeprom_read(fp, i); fp->fxp_address.ea_addr[i*2]= (v & 0xff); fp->fxp_address.ea_addr[i*2+1]= ((v >> 8) & 0xff); } } /* Tell NIC about ethernet address */ tmpbufp->ias.ias_status= 0; tmpbufp->ias.ias_command= CBL_C_EL | CBL_AIS; tmpbufp->ias.ias_linkaddr= 0; memcpy(tmpbufp->ias.ias_ethaddr, fp->fxp_address.ea_addr, sizeof(tmpbufp->ias.ias_ethaddr)); r= sys_umap(SELF, VM_D, (vir_bytes)&tmpbufp->ias, (phys_bytes)sizeof(tmpbufp->ias), &bus_addr); if (r != OK) panic("sys_umap failed: %d", r); fxp_cu_ptr_cmd(fp, SC_CU_START, bus_addr, TRUE /* check idle */); /* Wait for CU command to complete */ SPIN_UNTIL(tmpbufp->ias.ias_status & CBL_F_C, 1000); if (!(tmpbufp->ias.ias_status & CBL_F_C)) panic("fxp_confaddr: CU command failed to complete"); if (!(tmpbufp->ias.ias_status & CBL_F_OK)) panic("fxp_confaddr: CU command failed"); #if VERBOSE printf("%s: hardware ethernet address: ", fp->fxp_name); for (i= 0; i<6; i++) { printf("%02x%s", fp->fxp_address.ea_addr[i], i < 5 ? ":" : ""); } printf("\n"); #endif } /*===========================================================================* * fxp_rec_mode * *===========================================================================*/ static void fxp_rec_mode(fp) fxp_t *fp; { fp->fxp_conf_bytes[0]= CC_BYTES_NR; /* Just to be sure */ fp->fxp_conf_bytes[15] &= ~(CCB15_BD|CCB15_PM); fp->fxp_conf_bytes[21] &= ~CCB21_MA; if (fp->fxp_flags & FF_PROMISC) fp->fxp_conf_bytes[15] |= CCB15_PM; if (fp->fxp_flags & FF_MULTI) fp->fxp_conf_bytes[21] |= CCB21_MA; if (!(fp->fxp_flags & (FF_BROAD|FF_MULTI|FF_PROMISC))) fp->fxp_conf_bytes[15] |= CCB15_BD; /* Queue request if not idle */ if (fp->fxp_tx_idle) { fxp_do_conf(fp); } else { printf("fxp_rec_mode: setting fxp_need_conf\n"); fp->fxp_need_conf= TRUE; } } /*===========================================================================* * fxp_writev_s * *===========================================================================*/ static void fxp_writev_s(const message *mp, int from_int) { endpoint_t iov_endpt; cp_grant_id_t iov_grant; vir_bytes iov_offset; int i, j, n, o, r, s, count, size, prev_head; int fxp_tx_nbuf, fxp_tx_head; u16_t tx_command; fxp_t *fp; iovec_s_t *iovp; struct tx *txp, *prev_txp; fp= fxp_state; count = mp->DL_COUNT; fp->fxp_client= mp->m_source; assert(fp->fxp_mode == FM_ENABLED); assert(fp->fxp_flags & FF_ENABLED); if (from_int) { assert(fp->fxp_flags & FF_SEND_AVAIL); fp->fxp_flags &= ~FF_SEND_AVAIL; fp->fxp_tx_alive= TRUE; } if (fp->fxp_tx_idle) { txp= fp->fxp_tx_buf; fxp_tx_head= 0; /* lint */ prev_txp= NULL; /* lint */ } else { fxp_tx_nbuf= fp->fxp_tx_nbuf; prev_head= fp->fxp_tx_head; fxp_tx_head= prev_head+1; if (fxp_tx_head == fxp_tx_nbuf) fxp_tx_head= 0; assert(fxp_tx_head < fxp_tx_nbuf); if (fxp_tx_head == fp->fxp_tx_tail) { /* Send queue is full */ assert(!(fp->fxp_flags & FF_SEND_AVAIL)); fp->fxp_flags |= FF_SEND_AVAIL; goto suspend; } prev_txp= &fp->fxp_tx_buf[prev_head]; txp= &fp->fxp_tx_buf[fxp_tx_head]; } assert(!(fp->fxp_flags & FF_SEND_AVAIL)); assert(!(fp->fxp_flags & FF_PACK_SENT)); iov_endpt= mp->m_source; iov_grant= mp->DL_GRANT; size= 0; o= 0; iov_offset= 0; for (i= 0; ifxp_iovec_s[0])) { n= IOVEC_NR; if (i+n > count) n= count-i; r= sys_safecopyfrom(iov_endpt, iov_grant, iov_offset, (vir_bytes)fp->fxp_iovec_s, n * sizeof(fp->fxp_iovec_s[0]), D); if (r != OK) panic("fxp_writev: sys_safecopyfrom failed: %d", r); for (j= 0, iovp= fp->fxp_iovec_s; jiov_size; if (size + s > ETH_MAX_PACK_SIZE_TAGGED) { panic("fxp_writev: invalid packet size: %d", size + s); } r= sys_safecopyfrom(iov_endpt, iovp->iov_grant, 0, (vir_bytes)(txp->tx_buf+o), s, D); if (r != OK) { panic("fxp_writev_s: sys_safecopyfrom failed: %d", r); } size += s; o += s; } } if (size < ETH_MIN_PACK_SIZE) panic("fxp_writev: invalid packet size: %d", size); txp->tx_status= 0; txp->tx_command= TXC_EL | CBL_XMIT; txp->tx_tbda= TX_TBDA_NIL; txp->tx_size= TXSZ_EOF | size; txp->tx_tthresh= fp->fxp_tx_threshold; txp->tx_ntbd= 0; if (fp->fxp_tx_idle) { fp->fxp_tx_idle= 0; fp->fxp_tx_head= fp->fxp_tx_tail= 0; fxp_cu_ptr_cmd(fp, SC_CU_START, fp->fxp_tx_busaddr, TRUE /* check idle */); } else { /* Link new request in transmit list */ tx_command= prev_txp->tx_command; assert(tx_command == (TXC_EL | CBL_XMIT)); prev_txp->tx_command= CBL_XMIT; fp->fxp_tx_head= fxp_tx_head; } fp->fxp_flags |= FF_PACK_SENT; /* If the interrupt handler called, don't send a reply. The reply * will be sent after all interrupts are handled. */ if (from_int) return; reply(fp); return; suspend: if (from_int) panic("fxp: should not be sending"); fp->fxp_tx_mess= *mp; reply(fp); } /*===========================================================================* * fxp_readv_s * *===========================================================================*/ static void fxp_readv_s(mp, from_int) message *mp; int from_int; { int i, j, n, o, r, s, count, size, fxp_rx_head, fxp_rx_nbuf; endpoint_t iov_endpt; cp_grant_id_t iov_grant; port_t port; unsigned packlen; vir_bytes iov_offset; u16_t rfd_status; u16_t rfd_res; u8_t scb_status; fxp_t *fp; iovec_s_t *iovp; struct rfd *rfdp, *prev_rfdp; fp= fxp_state; count = mp->DL_COUNT; fp->fxp_client= mp->m_source; assert(fp->fxp_mode == FM_ENABLED); assert(fp->fxp_flags & FF_ENABLED); port= fp->fxp_base_port; fxp_rx_head= fp->fxp_rx_head; rfdp= &fp->fxp_rx_buf[fxp_rx_head]; rfd_status= rfdp->rfd_status; if (!(rfd_status & RFDS_C)) { /* Receive buffer is empty, suspend */ goto suspend; } if (!(rfd_status & RFDS_OK)) { /* Not OK? What happened? */ assert(0); } else { assert(!(rfd_status & (RFDS_CRCERR | RFDS_ALIGNERR | RFDS_OUTOFBUF | RFDS_DMAOVR | RFDS_TOOSHORT | RFDS_RXERR))); } rfd_res= rfdp->rfd_res; assert(rfd_res & RFDR_EOF); assert(rfd_res & RFDR_F); packlen= rfd_res & RFDSZ_SIZE; iov_endpt = mp->m_source; iov_grant = mp->DL_GRANT; size= 0; o= 0; iov_offset= 0; for (i= 0; ifxp_iovec_s[0])) { n= IOVEC_NR; if (i+n > count) n= count-i; r= sys_safecopyfrom(iov_endpt, iov_grant, iov_offset, (vir_bytes)fp->fxp_iovec_s, n * sizeof(fp->fxp_iovec_s[0]), D); if (r != OK) panic("fxp_readv_s: sys_safecopyfrom failed: %d", r); for (j= 0, iovp= fp->fxp_iovec_s; jiov_size; if (size + s > packlen) { assert(packlen > size); s= packlen-size; } r= sys_safecopyto(iov_endpt, iovp->iov_grant, 0, (vir_bytes)(rfdp->rfd_buf+o), s, D); if (r != OK) { panic("fxp_readv: sys_safecopyto failed: %d", r); } size += s; if (size == packlen) break; o += s; } if (size == packlen) break; } if (size < packlen) { assert(0); } fp->fxp_read_s= packlen; fp->fxp_flags= (fp->fxp_flags & ~FF_READING) | FF_PACK_RECV; /* Re-init the current buffer */ rfdp->rfd_status= 0; rfdp->rfd_command= RFDC_EL; rfdp->rfd_reserved= 0; rfdp->rfd_res= 0; rfdp->rfd_size= sizeof(rfdp->rfd_buf); fxp_rx_nbuf= fp->fxp_rx_nbuf; if (fxp_rx_head == 0) { prev_rfdp= &fp->fxp_rx_buf[fxp_rx_nbuf-1]; } else prev_rfdp= &rfdp[-1]; assert(prev_rfdp->rfd_command & RFDC_EL); prev_rfdp->rfd_command &= ~RFDC_EL; fxp_rx_head++; if (fxp_rx_head == fxp_rx_nbuf) fxp_rx_head= 0; assert(fxp_rx_head < fxp_rx_nbuf); fp->fxp_rx_head= fxp_rx_head; if (!from_int) reply(fp); return; suspend: if (fp->fxp_rx_need_restart) { fp->fxp_rx_need_restart= 0; /* Check the status of the RU */ scb_status= fxp_inb(port, SCB_STATUS); if ((scb_status & SS_RUS_MASK) != SS_RU_NORES) { /* Race condition? */ printf("fxp_readv: restart race: 0x%x\n", scb_status); assert((scb_status & SS_RUS_MASK) == SS_RU_READY); } else { fxp_restart_ru(fp); } } if (from_int) { assert(fp->fxp_flags & FF_READING); /* No need to store any state */ return; } fp->fxp_rx_mess= *mp; assert(!(fp->fxp_flags & FF_READING)); fp->fxp_flags |= FF_READING; reply(fp); } /*===========================================================================* * fxp_do_conf * *===========================================================================*/ static void fxp_do_conf(fp) fxp_t *fp; { int r; u32_t bus_addr; /* Configure device */ tmpbufp->cc.cc_status= 0; tmpbufp->cc.cc_command= CBL_C_EL | CBL_CONF; tmpbufp->cc.cc_linkaddr= 0; memcpy(tmpbufp->cc.cc_bytes, fp->fxp_conf_bytes, sizeof(tmpbufp->cc.cc_bytes)); r= sys_umap(SELF, VM_D, (vir_bytes)&tmpbufp->cc, (phys_bytes)sizeof(tmpbufp->cc), &bus_addr); if (r != OK) panic("sys_umap failed: %d", r); fxp_cu_ptr_cmd(fp, SC_CU_START, bus_addr, TRUE /* check idle */); /* Wait for CU command to complete */ SPIN_UNTIL(tmpbufp->cc.cc_status & CBL_F_C, 100000); if (!(tmpbufp->cc.cc_status & CBL_F_C)) panic("fxp_do_conf: CU command failed to complete"); if (!(tmpbufp->cc.cc_status & CBL_F_OK)) panic("fxp_do_conf: CU command failed"); } /*===========================================================================* * fxp_cu_ptr_cmd * *===========================================================================*/ static void fxp_cu_ptr_cmd(fp, cmd, bus_addr, check_idle) fxp_t *fp; int cmd; phys_bytes bus_addr; int check_idle; { spin_t spin; port_t port; u8_t scb_cmd; port= fp->fxp_base_port; if (check_idle) { /* Consistency check. Make sure that CU is idle */ if ((fxp_inb(port, SCB_STATUS) & SS_CUS_MASK) != SS_CU_IDLE) panic("fxp_cu_ptr_cmd: CU is not idle"); } fxp_outl(port, SCB_POINTER, bus_addr); fxp_outb(port, SCB_CMD, cmd); /* What is a reasonable time-out? There is nothing in the * documentation. 1 ms should be enough. We use 100 ms. */ spin_init(&spin, 100000); do { /* Wait for CU command to be accepted */ scb_cmd= fxp_inb(port, SCB_CMD); if ((scb_cmd & SC_CUC_MASK) == SC_CU_NOP) break; } while (spin_check(&spin)); if ((scb_cmd & SC_CUC_MASK) != SC_CU_NOP) panic("fxp_cu_ptr_cmd: CU does not accept command"); } /*===========================================================================* * fxp_ru_ptr_cmd * *===========================================================================*/ static void fxp_ru_ptr_cmd(fp, cmd, bus_addr, check_idle) fxp_t *fp; int cmd; phys_bytes bus_addr; int check_idle; { spin_t spin; port_t port; u8_t scb_cmd; port= fp->fxp_base_port; if (check_idle) { /* Consistency check, make sure that RU is idle */ if ((fxp_inb(port, SCB_STATUS) & SS_RUS_MASK) != SS_RU_IDLE) panic("fxp_ru_ptr_cmd: RU is not idle"); } fxp_outl(port, SCB_POINTER, bus_addr); fxp_outb(port, SCB_CMD, cmd); spin_init(&spin, 1000); do { /* Wait for RU command to be accepted */ scb_cmd= fxp_inb(port, SCB_CMD); if ((scb_cmd & SC_RUC_MASK) == SC_RU_NOP) break; } while (spin_check(&spin)); if ((scb_cmd & SC_RUC_MASK) != SC_RU_NOP) panic("fxp_ru_ptr_cmd: RU does not accept command"); } /*===========================================================================* * fxp_restart_ru * *===========================================================================*/ static void fxp_restart_ru(fp) fxp_t *fp; { int i, fxp_rx_nbuf; port_t port; struct rfd *rfdp; port= fp->fxp_base_port; fxp_rx_nbuf= fp->fxp_rx_nbuf; for (i= 0, rfdp= fp->fxp_rx_buf; irfd_status= 0; rfdp->rfd_command= 0; if (i == fp->fxp_rx_nbuf-1) rfdp->rfd_command= RFDC_EL; rfdp->rfd_reserved= 0; rfdp->rfd_res= 0; rfdp->rfd_size= sizeof(rfdp->rfd_buf); } fp->fxp_rx_head= 0; /* Make sure that RU is in the 'No resources' state */ if ((fxp_inb(port, SCB_STATUS) & SS_RUS_MASK) != SS_RU_NORES) panic("fxp_restart_ru: RU is in an unexpected state"); fxp_ru_ptr_cmd(fp, SC_RU_START, fp->fxp_rx_busaddr, FALSE /* do not check idle */); } /*===========================================================================* * fxp_getstat_s * *===========================================================================*/ static void fxp_getstat_s(message *mp) { int r; fxp_t *fp; u32_t *p; eth_stat_t stats; fp= fxp_state; assert(fp->fxp_mode == FM_ENABLED); assert(fp->fxp_flags & FF_ENABLED); p= &fp->fxp_stat.sc_tx_fcp; *p= 0; /* The dump commmand doesn't take a pointer. Setting a pointer * doesn't hurt though. */ fxp_cu_ptr_cmd(fp, SC_CU_DUMP_SC, 0, FALSE /* do not check idle */); /* Wait for CU command to complete */ SPIN_UNTIL(*p != 0, 1000); if (*p == 0) panic("fxp_getstat: CU command failed to complete"); if (*p != SCM_DSC) panic("fxp_getstat: bad magic"); stats.ets_recvErr= fp->fxp_stat.sc_rx_crc + fp->fxp_stat.sc_rx_align + fp->fxp_stat.sc_rx_resource + fp->fxp_stat.sc_rx_overrun + fp->fxp_stat.sc_rx_cd + fp->fxp_stat.sc_rx_short; stats.ets_sendErr= fp->fxp_stat.sc_tx_maxcol + fp->fxp_stat.sc_tx_latecol + fp->fxp_stat.sc_tx_crs; stats.ets_OVW= fp->fxp_stat.sc_rx_overrun; stats.ets_CRCerr= fp->fxp_stat.sc_rx_crc; stats.ets_frameAll= fp->fxp_stat.sc_rx_align; stats.ets_missedP= fp->fxp_stat.sc_rx_resource; stats.ets_packetR= fp->fxp_stat.sc_rx_good; stats.ets_packetT= fp->fxp_stat.sc_tx_good; stats.ets_transDef= fp->fxp_stat.sc_tx_defered; stats.ets_collision= fp->fxp_stat.sc_tx_totcol; stats.ets_transAb= fp->fxp_stat.sc_tx_maxcol; stats.ets_carrSense= fp->fxp_stat.sc_tx_crs; stats.ets_fifoUnder= fp->fxp_stat.sc_tx_underrun; stats.ets_fifoOver= fp->fxp_stat.sc_rx_overrun; stats.ets_CDheartbeat= 0; stats.ets_OWC= fp->fxp_stat.sc_tx_latecol; r= sys_safecopyto(mp->m_source, mp->DL_GRANT, 0, (vir_bytes)&stats, sizeof(stats), D); if (r != OK) panic("fxp_getstat_s: sys_safecopyto failed: %d", r); mp->m_type= DL_STAT_REPLY; r= send(mp->m_source, mp); if (r != OK) panic("fxp_getstat_s: send failed: %d", r); } /*===========================================================================* * fxp_handler * *===========================================================================*/ static void fxp_handler(fxp_t *fp) { int port; u16_t isr; RAND_UPDATE port= fp->fxp_base_port; /* Ack interrupt */ isr= fxp_inb(port, SCB_INT_STAT); fxp_outb(port, SCB_INT_STAT, isr); if (isr & SIS_FR) { isr &= ~SIS_FR; if (!fp->fxp_got_int && (fp->fxp_flags & FF_READING)) { fp->fxp_got_int= TRUE; interrupt(fxp_tasknr); } } if (isr & SIS_CNA) { isr &= ~SIS_CNA; if (!fp->fxp_tx_idle) { fp->fxp_send_int= TRUE; if (!fp->fxp_got_int) { fp->fxp_got_int= TRUE; interrupt(fxp_tasknr); } } } if (isr & SIS_RNR) { isr &= ~SIS_RNR; /* Assume that receive buffer is full of packets. fxp_readv * will restart the RU. */ fp->fxp_rx_need_restart= 1; } if (isr) { printf("fxp_handler: unhandled interrupt: isr = 0x%02x\n", isr); } } /*===========================================================================* * fxp_check_ints * *===========================================================================*/ static void fxp_check_ints(fxp_t *fp) { int n, fxp_flags, prev_tail; int fxp_tx_tail, fxp_tx_nbuf, fxp_tx_threshold; port_t port; u32_t busaddr; u16_t tx_status; u8_t scb_status; struct tx *txp; fxp_flags= fp->fxp_flags; if (fxp_flags & FF_READING) { if (!(fp->fxp_rx_buf[fp->fxp_rx_head].rfd_status & RFDS_C)) ; /* Nothing */ else { fxp_readv_s(&fp->fxp_rx_mess, TRUE /* from int */); } } if (fp->fxp_tx_idle) ; /* Nothing to do */ else if (fp->fxp_send_int) { fp->fxp_send_int= FALSE; fxp_tx_tail= fp->fxp_tx_tail; fxp_tx_nbuf= fp->fxp_tx_nbuf; n= 0; for (;;) { txp= &fp->fxp_tx_buf[fxp_tx_tail]; tx_status= txp->tx_status; if (!(tx_status & TXS_C)) break; n++; assert(tx_status & TXS_OK); if (tx_status & TXS_U) { fxp_tx_threshold= fp->fxp_tx_threshold; if (fxp_tx_threshold < TXTT_MAX) { fxp_tx_threshold++; fp->fxp_tx_threshold= fxp_tx_threshold; } printf( "fxp_check_ints: fxp_tx_threshold = 0x%x\n", fxp_tx_threshold); } if (txp->tx_command & TXC_EL) { fp->fxp_tx_idle= 1; break; } fxp_tx_tail++; if (fxp_tx_tail == fxp_tx_nbuf) fxp_tx_tail= 0; assert(fxp_tx_tail < fxp_tx_nbuf); } if (fp->fxp_need_conf) { /* Check the status of the CU */ port= fp->fxp_base_port; scb_status= fxp_inb(port, SCB_STATUS); if ((scb_status & SS_CUS_MASK) != SS_CU_IDLE) { /* Nothing to do */ printf("scb_status = 0x%x\n", scb_status); } else { printf("fxp_check_ints: fxp_need_conf\n"); fp->fxp_need_conf= FALSE; fxp_do_conf(fp); } } if (n) { if (!fp->fxp_tx_idle) { fp->fxp_tx_tail= fxp_tx_tail; /* Check the status of the CU */ port= fp->fxp_base_port; scb_status= fxp_inb(port, SCB_STATUS); if ((scb_status & SS_CUS_MASK) != SS_CU_IDLE) { /* Nothing to do */ printf("scb_status = 0x%x\n", scb_status); } else { if (fxp_tx_tail == 0) prev_tail= fxp_tx_nbuf-1; else prev_tail= fxp_tx_tail-1; busaddr= fp->fxp_tx_buf[prev_tail]. tx_linkaddr; fxp_cu_ptr_cmd(fp, SC_CU_START, busaddr, 1 /* check idle */); } } if (fp->fxp_flags & FF_SEND_AVAIL) { fxp_writev_s(&fp->fxp_tx_mess, TRUE /* from int */); } } } if (fp->fxp_report_link) fxp_report_link(fp); if (fp->fxp_flags & (FF_PACK_SENT | FF_PACK_RECV)) reply(fp); } /*===========================================================================* * fxp_watchdog_f * *===========================================================================*/ static void fxp_watchdog_f(tp) timer_t *tp; { fxp_t *fp; set_timer(&fxp_watchdog, system_hz, fxp_watchdog_f, 0); fp= fxp_state; if (fp->fxp_mode != FM_ENABLED) return; /* Handle race condition, MII interface might be busy */ if(!fp->fxp_mii_busy) { /* Check the link status. */ if (fxp_link_changed(fp)) { #if VERBOSE printf("fxp_watchdog_f: link changed\n"); #endif fp->fxp_report_link= TRUE; fp->fxp_got_int= TRUE; interrupt(fxp_tasknr); } } if (!(fp->fxp_flags & FF_SEND_AVAIL)) { /* Assume that an idle system is alive */ fp->fxp_tx_alive= TRUE; return; } if (fp->fxp_tx_alive) { fp->fxp_tx_alive= FALSE; return; } fp->fxp_need_reset= TRUE; fp->fxp_got_int= TRUE; interrupt(fxp_tasknr); } /*===========================================================================* * fxp_link_changed * *===========================================================================*/ static int fxp_link_changed(fp) fxp_t *fp; { u16_t scr; scr= mii_read(fp, MII_SCR); scr &= ~(MII_SCR_RES|MII_SCR_RES_1); return (fp->fxp_mii_scr != scr); } /*===========================================================================* * fxp_report_link * *===========================================================================*/ static void fxp_report_link(fxp_t *fp) { u16_t mii_ctrl, mii_status, mii_id1, mii_id2, mii_ana, mii_anlpa, mii_ane, mii_extstat, mii_ms_ctrl, mii_ms_status, scr; u32_t oui; int model, rev; int f, link_up, ms_regs; /* Assume an 82555 (compatible) PHY. The should be changed for * 82557 NICs with different PHYs */ ms_regs= 0; /* No master/slave registers. */ fp->fxp_report_link= FALSE; scr= mii_read(fp, MII_SCR); scr &= ~(MII_SCR_RES|MII_SCR_RES_1); fp->fxp_mii_scr= scr; mii_ctrl= mii_read(fp, MII_CTRL); mii_read(fp, MII_STATUS); /* The status reg is latched, read twice */ mii_status= mii_read(fp, MII_STATUS); mii_id1= mii_read(fp, MII_PHYID_H); mii_id2= mii_read(fp, MII_PHYID_L); mii_ana= mii_read(fp, MII_ANA); mii_anlpa= mii_read(fp, MII_ANLPA); mii_ane= mii_read(fp, MII_ANE); if (mii_status & MII_STATUS_EXT_STAT) mii_extstat= mii_read(fp, MII_EXT_STATUS); else mii_extstat= 0; if (ms_regs) { mii_ms_ctrl= mii_read(fp, MII_MS_CTRL); mii_ms_status= mii_read(fp, MII_MS_STATUS); } else { mii_ms_ctrl= 0; mii_ms_status= 0; } /* How do we know about the link status? */ link_up= !!(mii_status & MII_STATUS_LS); fp->fxp_link_up= link_up; if (!link_up) { #if VERBOSE printf("%s: link down\n", fp->fxp_name); #endif return; } oui= (mii_id1 << MII_PH_OUI_H_C_SHIFT) | ((mii_id2 & MII_PL_OUI_L_MASK) >> MII_PL_OUI_L_SHIFT); model= ((mii_id2 & MII_PL_MODEL_MASK) >> MII_PL_MODEL_SHIFT); rev= (mii_id2 & MII_PL_REV_MASK); #if VERBOSE printf("OUI 0x%06lx, Model 0x%02x, Revision 0x%x\n", oui, model, rev); #endif if (mii_ctrl & (MII_CTRL_LB|MII_CTRL_PD|MII_CTRL_ISO)) { printf("%s: PHY: ", fp->fxp_name); f= 1; if (mii_ctrl & MII_CTRL_LB) { printf("loopback mode"); f= 0; } if (mii_ctrl & MII_CTRL_PD) { if (!f) printf(", "); f= 0; printf("powered down"); } if (mii_ctrl & MII_CTRL_ISO) { if (!f) printf(", "); f= 0; printf("isolated"); } printf("\n"); return; } if (!(mii_ctrl & MII_CTRL_ANE)) { printf("%s: manual config: ", fp->fxp_name); switch(mii_ctrl & (MII_CTRL_SP_LSB|MII_CTRL_SP_MSB)) { case MII_CTRL_SP_10: printf("10 Mbps"); break; case MII_CTRL_SP_100: printf("100 Mbps"); break; case MII_CTRL_SP_1000: printf("1000 Mbps"); break; case MII_CTRL_SP_RES: printf("reserved speed"); break; } if (mii_ctrl & MII_CTRL_DM) printf(", full duplex"); else printf(", half duplex"); printf("\n"); return; } if (!debug) goto resspeed; printf("%s: ", fp->fxp_name); mii_print_stat_speed(mii_status, mii_extstat); printf("\n"); if (!(mii_status & MII_STATUS_ANC)) printf("%s: auto-negotiation not complete\n", fp->fxp_name); if (mii_status & MII_STATUS_RF) printf("%s: remote fault detected\n", fp->fxp_name); if (!(mii_status & MII_STATUS_ANA)) { printf("%s: local PHY has no auto-negotiation ability\n", fp->fxp_name); } if (!(mii_status & MII_STATUS_LS)) printf("%s: link down\n", fp->fxp_name); if (mii_status & MII_STATUS_JD) printf("%s: jabber condition detected\n", fp->fxp_name); if (!(mii_status & MII_STATUS_EC)) { printf("%s: no extended register set\n", fp->fxp_name); goto resspeed; } if (!(mii_status & MII_STATUS_ANC)) goto resspeed; printf("%s: local cap.: ", fp->fxp_name); if (mii_ms_ctrl & (MII_MSC_1000T_FD | MII_MSC_1000T_HD)) { printf("1000 Mbps: T-"); switch(mii_ms_ctrl & (MII_MSC_1000T_FD | MII_MSC_1000T_HD)) { case MII_MSC_1000T_FD: printf("FD"); break; case MII_MSC_1000T_HD: printf("HD"); break; default: printf("FD/HD"); break; } if (mii_ana) printf(", "); } mii_print_techab(mii_ana); printf("\n"); if (mii_ane & MII_ANE_PDF) printf("%s: parallel detection fault\n", fp->fxp_name); if (!(mii_ane & MII_ANE_LPANA)) { printf("%s: link-partner does not support auto-negotiation\n", fp->fxp_name); goto resspeed; } printf("%s: remote cap.: ", fp->fxp_name); if (mii_ms_ctrl & (MII_MSC_1000T_FD | MII_MSC_1000T_HD)) if (mii_ms_status & (MII_MSS_LP1000T_FD | MII_MSS_LP1000T_HD)) { printf("1000 Mbps: T-"); switch(mii_ms_status & (MII_MSS_LP1000T_FD | MII_MSS_LP1000T_HD)) { case MII_MSS_LP1000T_FD: printf("FD"); break; case MII_MSS_LP1000T_HD: printf("HD"); break; default: printf("FD/HD"); break; } if (mii_anlpa) printf(", "); } mii_print_techab(mii_anlpa); printf("\n"); if (ms_regs) { printf("%s: ", fp->fxp_name); if (mii_ms_ctrl & MII_MSC_MS_MANUAL) { printf("manual %s", (mii_ms_ctrl & MII_MSC_MS_VAL) ? "MASTER" : "SLAVE"); } else { printf("%s device", (mii_ms_ctrl & MII_MSC_MULTIPORT) ? "multiport" : "single-port"); } if (mii_ms_ctrl & MII_MSC_RES) printf(" reserved<0x%x>", mii_ms_ctrl & MII_MSC_RES); printf(": "); if (mii_ms_status & MII_MSS_FAULT) printf("M/S config fault"); else if (mii_ms_status & MII_MSS_MASTER) printf("MASTER"); else printf("SLAVE"); printf("\n"); } if (mii_ms_status & (MII_MSS_LP1000T_FD|MII_MSS_LP1000T_HD)) { if (!(mii_ms_status & MII_MSS_LOCREC)) { printf("%s: local receiver not OK\n", fp->fxp_name); } if (!(mii_ms_status & MII_MSS_REMREC)) { printf("%s: remote receiver not OK\n", fp->fxp_name); } } if (mii_ms_status & (MII_MSS_RES|MII_MSS_IDLE_ERR)) { printf("%s", fp->fxp_name); if (mii_ms_status & MII_MSS_RES) printf(" reserved<0x%x>", mii_ms_status & MII_MSS_RES); if (mii_ms_status & MII_MSS_IDLE_ERR) { printf(" idle error %d", mii_ms_status & MII_MSS_IDLE_ERR); } printf("\n"); } resspeed: #if VERBOSE printf("%s: link up, %d Mbps, %s duplex\n", fp->fxp_name, (scr & MII_SCR_100) ? 100 : 10, (scr & MII_SCR_FD) ? "full" : "half"); #endif ; } /*===========================================================================* * reply * *===========================================================================*/ static void reply(fp) fxp_t *fp; { message reply; int flags; int r; flags = DL_NOFLAGS; if (fp->fxp_flags & FF_PACK_SENT) flags |= DL_PACK_SEND; if (fp->fxp_flags & FF_PACK_RECV) flags |= DL_PACK_RECV; reply.m_type = DL_TASK_REPLY; reply.DL_FLAGS = flags; reply.DL_COUNT = fp->fxp_read_s; r= send(fp->fxp_client, &reply); if (r < 0) panic("fxp: send failed: %d", r); fp->fxp_read_s = 0; fp->fxp_flags &= ~(FF_PACK_SENT | FF_PACK_RECV); } /*===========================================================================* * mess_reply * *===========================================================================*/ static void mess_reply(req, reply_mess) message *req; message *reply_mess; { if (send(req->m_source, reply_mess) != OK) panic("fxp: unable to mess_reply"); } /*===========================================================================* * eeprom_read * *===========================================================================*/ PRIVATE u16_t eeprom_read(fp, reg) fxp_t *fp; int reg; { port_t port; u16_t v; int b, i, alen; alen= fp->fxp_ee_addrlen; if (!alen) { eeprom_addrsize(fp); alen= fp->fxp_ee_addrlen; assert(alen == 6 || alen == 8); } port= fp->fxp_base_port; fxp_outb(port, CSR_EEPROM, CE_EECS); /* Enable EEPROM */ v= EEPROM_READ_PREFIX; for (i= EEPROM_PREFIX_LEN-1; i >= 0; i--) { b= ((v & (1 << i)) ? CE_EEDI : 0); fxp_outb(port, CSR_EEPROM, CE_EECS | b); /* bit */ fxp_outb(port, CSR_EEPROM, CE_EECS | b | CE_EESK); /* Clock */ micro_delay(EESK_PERIOD/2+1); fxp_outb(port, CSR_EEPROM, CE_EECS | b); micro_delay(EESK_PERIOD/2+1); } v= reg; for (i= alen-1; i >= 0; i--) { b= ((v & (1 << i)) ? CE_EEDI : 0); fxp_outb(port, CSR_EEPROM, CE_EECS | b); /* bit */ fxp_outb(port, CSR_EEPROM, CE_EECS | b | CE_EESK); /* Clock */ micro_delay(EESK_PERIOD/2+1); fxp_outb(port, CSR_EEPROM, CE_EECS | b); micro_delay(EESK_PERIOD/2+1); } v= 0; for (i= 0; i<16; i++) { fxp_outb(port, CSR_EEPROM, CE_EECS | CE_EESK); /* Clock */ micro_delay(EESK_PERIOD/2+1); b= !!(fxp_inb(port, CSR_EEPROM) & CE_EEDO); v= (v << 1) | b; fxp_outb(port, CSR_EEPROM, CE_EECS ); micro_delay(EESK_PERIOD/2+1); } fxp_outb(port, CSR_EEPROM, 0); /* Disable EEPROM */ micro_delay(EECS_DELAY); return v; } /*===========================================================================* * eeprom_addrsize * *===========================================================================*/ PRIVATE void eeprom_addrsize(fp) fxp_t *fp; { port_t port; u16_t v; int b, i; port= fp->fxp_base_port; /* Try to find out the size of the EEPROM */ fxp_outb(port, CSR_EEPROM, CE_EECS); /* Enable EEPROM */ v= EEPROM_READ_PREFIX; for (i= EEPROM_PREFIX_LEN-1; i >= 0; i--) { b= ((v & (1 << i)) ? CE_EEDI : 0); fxp_outb(port, CSR_EEPROM, CE_EECS | b); /* bit */ fxp_outb(port, CSR_EEPROM, CE_EECS | b | CE_EESK); /* Clock */ micro_delay(EESK_PERIOD/2+1); fxp_outb(port, CSR_EEPROM, CE_EECS | b); micro_delay(EESK_PERIOD/2+1); } for (i= 0; i<32; i++) { b= 0; fxp_outb(port, CSR_EEPROM, CE_EECS | b); /* bit */ fxp_outb(port, CSR_EEPROM, CE_EECS | b | CE_EESK); /* Clock */ micro_delay(EESK_PERIOD/2+1); fxp_outb(port, CSR_EEPROM, CE_EECS | b); micro_delay(EESK_PERIOD/2+1); v= fxp_inb(port, CSR_EEPROM); if (!(v & CE_EEDO)) break; } if (i >= 32) panic("eeprom_addrsize: failed"); fp->fxp_ee_addrlen= i+1; /* Discard 16 data bits */ for (i= 0; i<16; i++) { fxp_outb(port, CSR_EEPROM, CE_EECS | CE_EESK); /* Clock */ micro_delay(EESK_PERIOD/2+1); fxp_outb(port, CSR_EEPROM, CE_EECS ); micro_delay(EESK_PERIOD/2+1); } fxp_outb(port, CSR_EEPROM, 0); /* Disable EEPROM */ micro_delay(EECS_DELAY); #if VERBOSE printf("%s EEPROM address length: %d\n", fp->fxp_name, fp->fxp_ee_addrlen); #endif } /*===========================================================================* * mii_read * *===========================================================================*/ PRIVATE u16_t mii_read(fp, reg) fxp_t *fp; int reg; { spin_t spin; port_t port; u32_t v; port= fp->fxp_base_port; assert(!fp->fxp_mii_busy); fp->fxp_mii_busy++; if (!(fxp_inl(port, CSR_MDI_CTL) & CM_READY)) panic("mii_read: MDI not ready"); fxp_outl(port, CSR_MDI_CTL, CM_READ | (1 << CM_PHYADDR_SHIFT) | (reg << CM_REG_SHIFT)); spin_init(&spin, 100000); do { v= fxp_inl(port, CSR_MDI_CTL); if (v & CM_READY) break; } while (spin_check(&spin)); if (!(v & CM_READY)) panic("mii_read: MDI not ready after command"); fp->fxp_mii_busy--; assert(!fp->fxp_mii_busy); return v & CM_DATA_MASK; } static u8_t do_inb(port_t port) { int r; u32_t value; r= sys_inb(port, &value); if (r != OK) panic("sys_inb failed: %d", r); return value; } static u32_t do_inl(port_t port) { int r; u32_t value; r= sys_inl(port, &value); if (r != OK) panic("sys_inl failed: %d", r); return value; } static void do_outb(port_t port, u8_t value) { int r; r= sys_outb(port, value); if (r != OK) panic("sys_outb failed: %d", r); } static void do_outl(port_t port, u32_t value) { int r; r= sys_outl(port, value); if (r != OK) panic("sys_outl failed: %d", r); } PRIVATE void tell_dev(buf, size, pci_bus, pci_dev, pci_func) vir_bytes buf; size_t size; int pci_bus; int pci_dev; int pci_func; { int r; endpoint_t dev_e; message m; r= ds_retrieve_label_endpt("amddev", &dev_e); if (r != OK) { #if 0 printf( "fxp`tell_dev: ds_retrieve_label_endpt failed for 'amddev': %d\n", r); #endif return; } m.m_type= IOMMU_MAP; m.m2_i1= pci_bus; m.m2_i2= pci_dev; m.m2_i3= pci_func; m.m2_l1= buf; m.m2_l2= size; r= sendrec(dev_e, &m); if (r != OK) { printf("fxp`tell_dev: sendrec to %d failed: %d\n", dev_e, r); return; } if (m.m_type != OK) { printf("fxp`tell_dev: dma map request failed: %d\n", m.m_type); return; } } /* * $PchId: fxp.c,v 1.4 2005/01/31 22:10:37 philip Exp $ */