mirror of https://github.com/GOSTSec/sgminer
Luke Dashjr
13 years ago
8 changed files with 583 additions and 7 deletions
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All the bitstream files included in this directory that follow the name pattern fpgaminer_*.ncd are: |
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---- |
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Copyright (c) 2011-2012 fpgaminer@bitcoin-mining.com |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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---- |
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You can find the original sources at the Open Source FPGA Bitcoin Miner project GitHub repository: |
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https://github.com/progranism/Open-Source-FPGA-Bitcoin-Miner/tree/master/projects/X6000_ztex_comm4/hdl |
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/*
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* Copyright 2012 Luke Dashjr |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; either version 3 of the License, or (at your option) |
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* any later version. See COPYING for more details. |
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*/ |
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#include "config.h" |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <unistd.h> |
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#include "fpgautils.h" |
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#include "logging.h" |
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#include "miner.h" |
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#define BITSTREAM_FILENAME "fpgaminer_top_fixed7_197MHz.ncd" |
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#define BISTREAM_USER_ID "\2\4$B" |
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struct device_api modminer_api; |
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static inline bool |
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_bailout(int fd, struct cgpu_info*modminer, int prio, const char *fmt, ...) |
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{ |
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if (fd != -1) |
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serial_close(fd); |
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if (modminer) { |
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modminer->device_fd = -1; |
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mutex_unlock(&modminer->device_mutex); |
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} |
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va_list ap; |
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va_start(ap, fmt); |
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vapplog(prio, fmt, ap); |
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va_end(ap); |
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return false; |
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} |
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#define bailout(...) return _bailout(fd, NULL, __VA_ARGS__); |
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static bool |
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modminer_detect_one(const char *devpath) |
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{ |
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int fd = serial_open(devpath, 0, 10, true); |
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if (unlikely(fd == -1)) |
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bailout(LOG_DEBUG, "ModMiner detect: failed to open %s", devpath); |
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char buf[0x100]; |
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size_t len; |
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// Sending 45 noops, just in case the device was left in "start job" reading
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write(fd, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff", 45) ?:0; |
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while (serial_read(fd, buf, sizeof(buf)) > 0) |
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; |
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if (1 != write(fd, "\x01", 1)) // Get version
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bailout(LOG_DEBUG, "ModMiner detect: write failed on %s (get version)", devpath); |
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len = serial_read(fd, buf, sizeof(buf)-1); |
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if (len < 1) |
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bailout(LOG_DEBUG, "ModMiner detect: no response to version request from %s", devpath); |
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buf[len] = '\0'; |
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char*devname = strdup(buf); |
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applog(LOG_DEBUG, "ModMiner identified as: %s", devname); |
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if (1 != write(fd, "\x02", 1)) // Get FPGA count
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bailout(LOG_DEBUG, "ModMiner detect: write failed on %s (get FPGA count)", devpath); |
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len = read(fd, buf, 1); |
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if (len < 1) |
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bailout(LOG_ERR, "ModMiner detect: timeout waiting for FPGA count from %s", devpath); |
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if (!buf[0]) |
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bailout(LOG_ERR, "ModMiner detect: zero FPGAs reported on %s", devpath); |
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applog(LOG_DEBUG, "ModMiner %s has %u FPGAs", devname, buf[0]); |
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serial_close(fd); |
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struct cgpu_info *modminer; |
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modminer = calloc(1, sizeof(*modminer)); |
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modminer->api = &modminer_api; |
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mutex_init(&modminer->device_mutex); |
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modminer->device_path = strdup(devpath); |
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modminer->device_fd = -1; |
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modminer->deven = DEV_ENABLED; |
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modminer->threads = buf[0]; |
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modminer->name = devname; |
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modminer->cutofftemp = 85; |
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return add_cgpu(modminer); |
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} |
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#undef bailout |
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static char |
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modminer_detect_auto() |
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{ |
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return |
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serial_autodetect_udev (modminer_detect_one, "BTCFPGA*ModMiner") ?: |
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serial_autodetect_devserial(modminer_detect_one, "BTCFPGA_ModMiner") ?: |
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0; |
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} |
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static void |
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modminer_detect() |
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{ |
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serial_detect_auto("modminer", modminer_detect_one, modminer_detect_auto); |
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} |
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static void |
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get_modminer_statline_before(char *buf, struct cgpu_info *modminer) |
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{ |
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float gt = modminer->temp; |
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if (gt > 0) |
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tailsprintf(buf, "%5.1fC ", gt); |
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else |
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tailsprintf(buf, " ", gt); |
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tailsprintf(buf, " | "); |
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} |
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#define bailout(...) return _bailout(-1, modminer, __VA_ARGS__); |
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#define bailout2(...) return _bailout(fd, modminer, __VA_ARGS__); |
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#define check_magic(L) do { \ |
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if (1 != fread(buf, 1, 1, f)) \ |
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bailout(LOG_ERR, "Error reading ModMiner firmware ('%c')", L); \ |
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if (buf[0] != L) \ |
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bailout(LOG_ERR, "ModMiner firmware has wrong magic ('%c')", L); \ |
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} while(0) |
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#define read_str(eng) do { \ |
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if (1 != fread(buf, 2, 1, f)) \ |
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bailout(LOG_ERR, "Error reading ModMiner firmware (" eng " len)"); \ |
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len = (ubuf[0] << 8) | ubuf[1]; \ |
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if (len >= sizeof(buf)) \ |
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bailout(LOG_ERR, "ModMiner firmware " eng " too long"); \ |
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if (1 != fread(buf, len, 1, f)) \ |
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bailout(LOG_ERR, "Error reading ModMiner firmware (" eng ")"); \ |
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buf[len] = '\0'; \ |
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} while(0) |
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#define status_read(eng) do { \ |
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FD_SET(fd, &fds); \ |
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select(fd+1, &fds, NULL, NULL, NULL); \ |
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if (1 != read(fd, buf, 1)) \ |
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bailout2(LOG_ERR, "Error programming ModMiner %s (" eng ")", modminer->device_path); \ |
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if (buf[0] != 1) \ |
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bailout2(LOG_ERR, "Wrong " eng " programming ModMiner %s", modminer->device_path); \ |
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} while(0) |
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static bool |
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modminer_fpga_upload_bitstream(struct cgpu_info*modminer) |
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{ |
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fd_set fds; |
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char buf[0x100]; |
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unsigned char *ubuf = (unsigned char*)buf; |
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unsigned long len; |
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char *p; |
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const char *fwfile = BITSTREAM_FILENAME; |
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char fpgaid = 4; // "all FPGAs"
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FILE *f = open_bitstream("modminer", fwfile); |
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if (!f) |
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bailout(LOG_ERR, "Error opening ModMiner firmware file %s", fwfile); |
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if (1 != fread(buf, 2, 1, f)) |
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bailout(LOG_ERR, "Error reading ModMiner firmware (magic)"); |
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if (buf[0] || buf[1] != 9) |
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bailout(LOG_ERR, "ModMiner firmware has wrong magic (9)"); |
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if (-1 == fseek(f, 11, SEEK_CUR)) |
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bailout(LOG_ERR, "ModMiner firmware seek failed"); |
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check_magic('a'); |
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read_str("design name"); |
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applog(LOG_DEBUG, "ModMiner firmware file %s info:", fwfile); |
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applog(LOG_DEBUG, " Design name: %s", buf); |
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p = strrchr(buf, ';') ?: buf; |
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p = strrchr(buf, '=') ?: p; |
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if (p[0] == '=') |
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++p; |
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long fwusercode = strtol(p, &p, 16); |
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if (p[0] != '\0') |
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bailout(LOG_ERR, "Bad usercode in ModMiner firmware file"); |
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if (fwusercode == 0xffffffff) |
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bailout(LOG_ERR, "ModMiner firmware doesn't support user code"); |
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applog(LOG_DEBUG, " Version: %u, build %u", (fwusercode >> 8) & 0xff, fwusercode & 0xff); |
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check_magic('b'); |
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read_str("part number"); |
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applog(LOG_DEBUG, " Part number: %s", buf); |
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check_magic('c'); |
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read_str("build date"); |
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applog(LOG_DEBUG, " Build date: %s", buf); |
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check_magic('d'); |
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read_str("build time"); |
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applog(LOG_DEBUG, " Build time: %s", buf); |
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check_magic('e'); |
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if (1 != fread(buf, 4, 1, f)) |
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bailout(LOG_ERR, "Error reading ModMiner firmware (data len)"); |
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len = ((unsigned long)ubuf[0] << 24) | ((unsigned long)ubuf[1] << 16) | (ubuf[2] << 8) | ubuf[3]; |
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applog(LOG_DEBUG, " Bitstream size: %lu", len); |
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int fd = modminer->device_fd; |
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applog(LOG_WARNING, "Programming %s... DO NOT EXIT CGMINER UNTIL COMPLETE", modminer->device_path, fpgaid); |
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buf[0] = '\x05'; // Program Bitstream
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buf[1] = fpgaid; |
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buf[2] = (len >> 0) & 0xff; |
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buf[3] = (len >> 8) & 0xff; |
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buf[4] = (len >> 16) & 0xff; |
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buf[5] = (len >> 24) & 0xff; |
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if (6 != write(fd, buf, 6)) |
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bailout2(LOG_ERR, "Error programming ModMiner %s (cmd)", modminer->device_path); |
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status_read("cmd reply"); |
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size_t buflen; |
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while (len) { |
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buflen = len < 32 ? len : 32; |
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if (fread(buf, buflen, 1, f) != 1) |
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bailout2(LOG_ERR, "File underrun programming ModMiner %s (%d bytes left)", modminer->device_path, len); |
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if (write(fd, buf, buflen) != buflen) |
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bailout2(LOG_ERR, "Error programming ModMiner %s (data)"); |
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status_read("status"); |
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len -= buflen; |
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} |
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status_read("final status"); |
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applog(LOG_WARNING, "Done programming %s", modminer->device_path); |
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return true; |
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} |
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static bool |
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modminer_device_prepare(struct cgpu_info *modminer) |
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{ |
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int fd = serial_open(modminer->device_path, 0, /*FIXME=-1*/3000, true); |
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if (unlikely(-1 == fd)) |
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bailout(LOG_ERR, "Failed to open ModMiner on %s", modminer->device_path); |
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modminer->device_fd = fd; |
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applog(LOG_INFO, "Opened ModMiner on %s", modminer->device_path); |
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struct timeval now; |
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gettimeofday(&now, NULL); |
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get_datestamp(modminer->init, &now); |
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return true; |
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} |
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#undef bailout |
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struct modminer_fpga_state { |
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bool work_running; |
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struct work running_work; |
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struct timeval tv_workstart; |
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uint32_t hashes; |
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char next_work_cmd[46]; |
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unsigned char clock; |
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int no_nonce_counter; |
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int good_share_counter; |
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time_t last_cutoff_reduced; |
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}; |
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static bool |
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modminer_fpga_prepare(struct thr_info *thr) |
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{ |
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struct cgpu_info *modminer = thr->cgpu; |
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// Don't need to lock the mutex here, since prepare runs from the main thread before the miner threads start
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if (modminer->device_fd == -1 && !modminer_device_prepare(modminer)) |
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return false; |
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struct modminer_fpga_state *state; |
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state = thr->cgpu_data = calloc(1, sizeof(struct modminer_fpga_state)); |
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state->next_work_cmd[0] = '\x08'; // Send Job
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state->next_work_cmd[1] = thr->device_thread; // FPGA id
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return true; |
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} |
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static bool |
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modminer_reduce_clock(struct thr_info*thr, bool needlock) |
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{ |
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struct cgpu_info*modminer = thr->cgpu; |
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struct modminer_fpga_state *state = thr->cgpu_data; |
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char fpgaid = thr->device_thread; |
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int fd = modminer->device_fd; |
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unsigned char cmd[6], buf[1]; |
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if (state->clock <= 100) |
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return false; |
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cmd[0] = '\x06'; // set clock speed
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cmd[1] = fpgaid; |
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cmd[2] = state->clock -= 2; |
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cmd[3] = cmd[4] = cmd[5] = '\0'; |
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if (needlock) |
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mutex_lock(&modminer->device_mutex); |
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if (6 != write(fd, cmd, 6)) |
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bailout2(LOG_ERR, "Error writing to ModMiner (set clock speed)"); |
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if (serial_read(fd, &buf, 1) != 1) |
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bailout2(LOG_ERR, "Error reading from ModMiner (set clock speed)"); |
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if (needlock) |
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mutex_unlock(&modminer->device_mutex); |
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applog(LOG_WARNING, "ModMiner: Setting clock speed of %s %d (FPGA #%u) to %u", modminer->api->name, modminer->device_id, fpgaid, state->clock); |
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return true; |
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} |
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static bool |
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modminer_fpga_init(struct thr_info *thr) |
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{ |
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struct cgpu_info *modminer = thr->cgpu; |
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struct modminer_fpga_state *state = thr->cgpu_data; |
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int fd; |
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char fpgaid = thr->device_thread; |
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unsigned char cmd[2], buf[4]; |
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mutex_lock(&modminer->device_mutex); |
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fd = modminer->device_fd; |
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if (fd == -1) { |
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// Died in another thread...
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mutex_unlock(&modminer->device_mutex); |
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return false; |
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} |
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cmd[0] = '\x04'; // Read USER code (bitstream id)
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cmd[1] = fpgaid; |
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if (write(fd, cmd, 2) != 2) |
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bailout2(LOG_ERR, "Error writing to ModMiner (read USER code)"); |
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if (serial_read(fd, buf, 4) != 4) |
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bailout2(LOG_ERR, "Error reading from ModMiner (read USER code)"); |
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if (memcmp(buf, BISTREAM_USER_ID, 4)) { |
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applog(LOG_ERR, "FPGA #%d not programmed", fpgaid); |
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if (!modminer_fpga_upload_bitstream(modminer)) |
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return false; |
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} |
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else |
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applog(LOG_DEBUG, "FPGA #%d is already programmed :)", fpgaid); |
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state->clock = 212; // Will be reduced to 210 by modminer_reduce_clock
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modminer_reduce_clock(thr, false); |
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mutex_unlock(&modminer->device_mutex); |
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return true; |
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} |
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static bool |
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modminer_prepare_next_work(struct modminer_fpga_state*state, struct work*work) |
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{ |
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char *midstate = state->next_work_cmd + 2; |
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char *taildata = midstate + 32; |
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if (!(memcmp(midstate, work->midstate, 32) || memcmp(taildata, work->data + 64, 12))) |
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return false; |
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memcpy(midstate, work->midstate, 32); |
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memcpy(taildata, work->data + 64, 12); |
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return true; |
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} |
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static bool |
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modminer_start_work(struct thr_info*thr) |
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{ |
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fd_set fds; |
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struct cgpu_info*modminer = thr->cgpu; |
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struct modminer_fpga_state *state = thr->cgpu_data; |
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int fd = modminer->device_fd; |
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char buf[1]; |
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mutex_lock(&modminer->device_mutex); |
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if (46 != write(fd, state->next_work_cmd, 46)) |
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bailout2(LOG_ERR, "Error writing to ModMiner (start work)"); |
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gettimeofday(&state->tv_workstart, NULL); |
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state->hashes = 0; |
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status_read("start work"); |
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mutex_unlock(&modminer->device_mutex); |
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return true; |
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} |
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#define work_restart(thr) work_restart[thr->id].restart |
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static uint64_t |
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modminer_process_results(struct thr_info*thr) |
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{ |
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struct cgpu_info*modminer = thr->cgpu; |
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struct modminer_fpga_state *state = thr->cgpu_data; |
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char fpgaid = thr->device_thread; |
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int fd = modminer->device_fd; |
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struct work *work = &state->running_work; |
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char cmd[2], temperature; |
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uint32_t nonce; |
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long iter; |
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bool bad; |
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cmd[0] = '\x0a'; |
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cmd[1] = fpgaid; |
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mutex_lock(&modminer->device_mutex); |
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if (2 == write(fd, cmd, 2) && read(fd, &temperature, 1) == 1) |
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{ |
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modminer->temp = (float)temperature; |
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if (temperature > modminer->cutofftemp - 2) { |
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if (temperature > modminer->cutofftemp) { |
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applog(LOG_WARNING, "Hit thermal cutoff limit on %s %d, disabling!", modminer->api->name, modminer->device_id); |
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modminer->deven = DEV_RECOVER; |
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modminer->device_last_not_well = time(NULL); |
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modminer->device_not_well_reason = REASON_DEV_THERMAL_CUTOFF; |
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++modminer->dev_thermal_cutoff_count; |
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} else { |
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time_t now = time(NULL); |
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if (state->last_cutoff_reduced != now) { |
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state->last_cutoff_reduced = now; |
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modminer_reduce_clock(thr, false); |
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} |
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} |
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} |
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} |
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cmd[0] = '\x09'; |
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iter = 200; |
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while (1) { |
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if (write(fd, cmd, 2) != 2) |
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bailout2(LOG_ERR, "Error reading from ModMiner (get nonce)"); |
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serial_read(fd, &nonce, 4); |
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mutex_unlock(&modminer->device_mutex); |
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if (memcmp(&nonce, "\xff\xff\xff\xff", 4)) { |
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state->no_nonce_counter = 0; |
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bad = !test_nonce(work, nonce); |
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if (!bad) |
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submit_nonce(thr, work, nonce); |
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else { |
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++hw_errors; |
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if (++modminer->hw_errors * 100 > 1000 + state->good_share_counter) |
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// Only reduce clocks if hardware errors are more than ~1% of results
|
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modminer_reduce_clock(thr, true); |
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} |
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} |
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else |
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if (++state->no_nonce_counter > 18000) { |
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state->no_nonce_counter = 0; |
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modminer_reduce_clock(thr, true); |
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} |
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if (work_restart(thr)) |
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break; |
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usleep(10000); |
||||
if (work_restart(thr) || !--iter) |
||||
break; |
||||
mutex_lock(&modminer->device_mutex); |
||||
} |
||||
|
||||
struct timeval tv_workend, elapsed; |
||||
gettimeofday(&tv_workend, NULL); |
||||
timeval_subtract(&elapsed, &tv_workend, &state->tv_workstart); |
||||
|
||||
uint64_t hashes = (uint64_t)state->clock * (((uint64_t)elapsed.tv_sec * 1000000) + elapsed.tv_usec); |
||||
if (hashes > 0xffffffff) |
||||
hashes = 0xffffffff; |
||||
else |
||||
if (hashes <= state->hashes) |
||||
hashes = 1; |
||||
else |
||||
hashes -= state->hashes; |
||||
state->hashes += hashes; |
||||
return hashes; |
||||
} |
||||
|
||||
static uint64_t |
||||
modminer_scanhash(struct thr_info*thr, struct work*work, uint64_t __maybe_unused max_nonce) |
||||
{ |
||||
struct modminer_fpga_state *state = thr->cgpu_data; |
||||
uint64_t hashes = 1; |
||||
bool startwork; |
||||
|
||||
startwork = modminer_prepare_next_work(state, work); |
||||
if (state->work_running) { |
||||
hashes = modminer_process_results(thr); |
||||
if (work_restart(thr)) { |
||||
state->work_running = false; |
||||
return 1; |
||||
} |
||||
} |
||||
else |
||||
state->work_running = true; |
||||
|
||||
if (startwork) { |
||||
if (!modminer_start_work(thr)) |
||||
return 0; |
||||
memcpy(&state->running_work, work, sizeof(state->running_work)); |
||||
} |
||||
|
||||
// This is intentionally early
|
||||
work->blk.nonce += hashes; |
||||
return hashes; |
||||
} |
||||
|
||||
static void |
||||
modminer_fpga_shutdown(struct thr_info *thr) |
||||
{ |
||||
free(thr->cgpu_data); |
||||
} |
||||
|
||||
struct device_api modminer_api = { |
||||
.dname = "modminer", |
||||
.name = "PGA", |
||||
.api_detect = modminer_detect, |
||||
.get_statline_before = get_modminer_statline_before, |
||||
.thread_prepare = modminer_fpga_prepare, |
||||
.thread_init = modminer_fpga_init, |
||||
.scanhash = modminer_scanhash, |
||||
.thread_shutdown = modminer_fpga_shutdown, |
||||
}; |
||||
Loading…
Reference in new issue