mirror of https://github.com/schoebel/mars
308 lines
8.1 KiB
C
308 lines
8.1 KiB
C
// (c) 2010 Thomas Schoebel-Theuer / 1&1 Internet AG
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//#define BRICK_DEBUGGING
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//#define MARS_DEBUGGING
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#define DEFAULT_ORDER 0
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//#define DEFAULT_BUFFERS (32768 / 2)
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//#define DEFAULT_MEM (1024 / 4 * 1024)
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#define DEFAULT_MEM (1024 / 4 * 1024 / 4)
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#define TRANS_ORDER 4
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#define TRANS_BUFFERS (32)
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#define TRANS_MEM (1024 / 4)
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//#define CONF_TEST // use intermediate mars_check bricks
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#define CONF_AIO // use aio instead of sio
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//#define CONF_BUF
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#define CONF_BUF_AHEAD // readahead optimization
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//#define CONF_USEBUF
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//#define CONF_TRANS
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#define CONF_TRANS_LOG_READS false
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//#define CONF_TRANS_LOG_READS true
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#define CONF_TRANS_FLYING 32
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#define CONF_TRANS_MAX_QUEUE 1000
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#define CONF_TRANS_MAX_JIFFIES (5 * HZ)
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#define CONF_TRANS_SORT
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//#define CONF_TBUF
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//#define CONF_DIRECT // use O_DIRECT
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#define CONF_FDSYNC // use additional aio_fdsync
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#define DIRECT
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/debug_locks.h>
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#include <linux/major.h>
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#include <linux/genhd.h>
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#include <linux/blkdev.h>
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#define _STRATEGY
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#include "mars.h"
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#include "mars_if.h"
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#include "mars_check.h"
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#include "mars_sio.h"
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#include "mars_aio.h"
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#include "mars_buf.h"
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#include "mars_usebuf.h"
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#include "mars_trans_logger.h"
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GENERIC_ASPECT_FUNCTIONS(generic,mref);
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#ifdef CONF_AIO
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#define sio_brick aio_brick
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#define sio_brick_type aio_brick_type
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#endif
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static struct generic_brick *if_brick = NULL;
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static struct if_brick *_if_brick = NULL;
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static struct generic_brick *usebuf_brick = NULL;
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static struct generic_brick *trans_brick = NULL;
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static struct trans_logger_brick *_trans_brick = NULL;
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static struct generic_brick *tbuf_brick = NULL;
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static struct buf_brick *_tbuf_brick = NULL;
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static struct generic_brick *tdevice_brick = NULL;
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static struct sio_brick *_tdevice_brick = NULL;
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static struct generic_brick *buf_brick = NULL;
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static struct buf_brick *_buf_brick = NULL;
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static struct generic_brick *device_brick = NULL;
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static struct sio_brick *_device_brick = NULL;
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void make_test_instance(void)
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{
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static const char *names[] = { "brick" };
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struct generic_output *first = NULL;
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struct generic_output *inter = NULL;
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struct generic_input *last = NULL;
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void *brick(const void *_brick_type)
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{
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const struct generic_brick_type *brick_type = _brick_type;
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const struct generic_input_type **input_types;
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const struct generic_output_type **output_types;
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void *mem;
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int size;
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int i;
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int status;
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size = brick_type->brick_size +
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(brick_type->max_inputs + brick_type->max_outputs) * sizeof(void*);
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input_types = brick_type->default_input_types;
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for (i = 0; i < brick_type->max_inputs; i++) {
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const struct generic_input_type *type = *input_types++;
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size += type->input_size;
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}
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output_types = brick_type->default_output_types;
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for (i = 0; i < brick_type->max_outputs; i++) {
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const struct generic_output_type *type = *output_types++;
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size += type->output_size;
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}
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mem = kzalloc(size, GFP_MARS);
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if (!mem) {
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MARS_ERR("cannot grab test memory for %s\n", brick_type->type_name);
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msleep(60000);
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return NULL;
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}
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status = generic_brick_init_full(mem, size, brick_type, NULL, NULL, names);
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MARS_INF("init '%s' (status=%d)\n", brick_type->type_name, status);
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if (status) {
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MARS_ERR("cannot init brick %s\n", brick_type->type_name);
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msleep(60000);
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return NULL;
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}
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return mem;
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}
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void connect(struct generic_input *a, struct generic_output *b)
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{
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int status;
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#ifdef CONF_TEST
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struct generic_brick *tmp = brick(&check_brick_type);
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status = generic_connect(a, tmp->outputs[0]);
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MARS_DBG("connect (status=%d)\n", status);
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if (status < 0)
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msleep(60000);
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status = generic_connect(tmp->inputs[0], b);
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#else
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status = generic_connect(a, b);
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#endif
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MARS_DBG("connect (status=%d)\n", status);
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if (status < 0)
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msleep(60000);
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}
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MARS_DBG("starting....\n");
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// first
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device_brick = brick(&sio_brick_type);
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_device_brick = (void*)device_brick;
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device_brick->outputs[0]->output_name = "/tmp/testfile.img";
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#ifdef CONF_DIRECT
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_device_brick->o_direct = true;
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#endif
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#ifdef CONF_FDSYNC
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_device_brick->o_fdsync = true;
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#endif
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mars_power_button((void*)device_brick, true, false);
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first = device_brick->outputs[0];
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// last
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if_brick = brick(&if_brick_type);
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last = if_brick->inputs[0];
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#ifdef CONF_USEBUF // usebuf zwischenschalten
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usebuf_brick = brick(&usebuf_brick_type);
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connect(last, usebuf_brick->outputs[0]);
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last = usebuf_brick->inputs[0];
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#else
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(void)usebuf_brick;
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#endif
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#ifdef CONF_BUF // Standard-buf zwischenschalten
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buf_brick = brick(&buf_brick_type);
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_buf_brick = (void*)buf_brick;
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_buf_brick->outputs[0]->output_name = "/tmp/testfile.img";
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_buf_brick->backing_order = DEFAULT_ORDER;
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_buf_brick->backing_size = PAGE_SIZE << _buf_brick->backing_order;
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#ifdef DEFAULT_BUFFERS
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_buf_brick->max_count = DEFAULT_BUFFERS;
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#else
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_buf_brick->max_count = DEFAULT_MEM >> _buf_brick->backing_order;
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#endif
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#ifdef CONF_BUF_AHEAD
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_buf_brick->optimize_chains = true;
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#endif
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connect(buf_brick->inputs[0], first);
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first = buf_brick->outputs[0];
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#else // CONF_BUF
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(void)buf_brick;
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(void)_buf_brick;
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#endif // CONF_BUF
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#ifdef CONF_TRANS // trans_logger plus Infrastruktur zwischenschalten
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tdevice_brick = brick(&sio_brick_type);
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_tdevice_brick = (void*)tdevice_brick;
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tdevice_brick->outputs[0]->output_name = "/tmp/testfile.log";
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#ifdef CONF_DIRECT
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_tdevice_brick->o_direct = true;
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#endif
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#ifdef CONF_FDSYNC
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_tdevice_brick->o_fdsync = true;
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#endif
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tdevice_brick->ops->brick_switch(tdevice_brick, true);
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inter = tdevice_brick->outputs[0];
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#ifdef CONF_TBUF
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tbuf_brick = brick(&buf_brick_type);
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_tbuf_brick = (void*)tbuf_brick;
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_tbuf_brick->outputs[0]->output_name = "/tmp/testfile.log";
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_tbuf_brick->backing_order = TRANS_ORDER;
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_tbuf_brick->backing_size = PAGE_SIZE << _tbuf_brick->backing_order;
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#ifdef TRANS_BUFFERS
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_tbuf_brick->max_count = TRANS_BUFFERS;
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#else
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_tbuf_brick->max_count = TRANS_MEM >> _tbuf_brick->backing_order;
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#endif
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connect(tbuf_brick->inputs[0], inter);
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inter = tbuf_brick->outputs[0];
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#else
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(void)tbuf_brick;
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(void)_tbuf_brick;
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#endif // CONF_TBUF
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trans_brick = brick(&trans_logger_brick_type);
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_trans_brick = (void*)trans_brick;
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_trans_brick->log_reads = CONF_TRANS_LOG_READS;
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_trans_brick->outputs[0]->q_phase2.q_max_queued = CONF_TRANS_MAX_QUEUE;
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_trans_brick->outputs[0]->q_phase4.q_max_queued = CONF_TRANS_MAX_QUEUE;
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_trans_brick->outputs[0]->q_phase2.q_max_jiffies = CONF_TRANS_MAX_JIFFIES;
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_trans_brick->outputs[0]->q_phase4.q_max_jiffies = CONF_TRANS_MAX_JIFFIES;
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_trans_brick->outputs[0]->q_phase2.q_max_flying = CONF_TRANS_FLYING;
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_trans_brick->outputs[0]->q_phase4.q_max_flying = CONF_TRANS_FLYING;
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#ifdef CONF_TRANS_SORT
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_trans_brick->outputs[0]->q_phase2.q_ordering = true;
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_trans_brick->outputs[0]->q_phase4.q_ordering = true;
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#endif
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connect(trans_brick->inputs[0], first);
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connect(trans_brick->inputs[1], inter);
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first = trans_brick->outputs[0];
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#else // CONF_TRANS
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(void)trans_brick;
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(void)_trans_brick;
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(void)tdevice_brick;
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(void)_tdevice_brick;
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(void)inter;
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(void)tbuf_brick;
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(void)_tbuf_brick;
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#endif // CONF_TRANS
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connect(last, first);
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msleep(200);
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MARS_INF("------------- END INIT --------------\n");
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_if_brick = (void*)if_brick;
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{
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struct mars_info info = {};
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int status = GENERIC_INPUT_CALL(_if_brick->inputs[0], mars_get_info, &info);
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MARS_INF("INFO status=%d size=%lld transfer_order=%d transfer_size=%d %p\n", status, info.current_size, info.transfer_order, info.transfer_size, info.backing_file);
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}
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MARS_INF("------------- START GATE --------------\n");
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mars_power_button((void*)if_brick, true, false);
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//_if_brick->is_active = true;
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msleep(2000);
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MARS_INF("------------- DONE --------------\n");
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//msleep(1000 * 92);
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// FIXME: this is never released!
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atomic_inc(¤t->mm->mm_users);
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}
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void destroy_test_instance(void)
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{
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}
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static void __exit exit_test(void)
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{
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MARS_DBG("destroy_test_instance()\n");
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destroy_test_instance();
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}
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static int __init init_test(void)
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{
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MARS_DBG("make_test_instance()\n");
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#if 0
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debug_locks_off();
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#endif
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make_test_instance();
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return 0;
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}
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MODULE_DESCRIPTION("MARS TEST");
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MODULE_AUTHOR("Thomas Schoebel-Theuer <tst@1und1.de>");
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MODULE_LICENSE("GPL");
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module_init(init_test);
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module_exit(exit_test);
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