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lib/mqnic: Reorganize library code

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich 2022-04-19 13:13:53 -07:00
parent a1cd110074
commit 730ccf3a5b
6 changed files with 385 additions and 273 deletions
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2
lib/mqnic/Makefile
View File

@ -22,7 +22,7 @@ all: $(LIB)
%.o: %.c
$(CC) $(ALL_CFLAGS) -c -o $@ $<
libmqnic.a: mqnic.o reg_block.o
libmqnic.a: mqnic.o mqnic_if.o mqnic_sched_block.o mqnic_scheduler.o reg_block.o
ar rcs $@ $^
install:

271
lib/mqnic/mqnic.c
View File

@ -1,6 +1,6 @@
/*
Copyright 2019, The Regents of the University of California.
Copyright 2019-2022, The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -36,7 +36,6 @@ either expressed or implied, of The Regents of the University of California.
#include <dirent.h>
#include <fcntl.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
@ -483,271 +482,3 @@ void mqnic_close(struct mqnic *dev)
free(dev);
}
struct mqnic_if *mqnic_if_open(struct mqnic *dev, int index, volatile uint8_t *regs)
{
struct mqnic_if *interface = calloc(1, sizeof(struct mqnic_if));
if (!interface)
return NULL;
interface->mqnic = dev;
interface->index = index;
interface->regs_size = dev->if_stride;
interface->regs = regs;
interface->csr_regs = interface->regs + dev->if_csr_offset;
if (interface->regs >= dev->regs+dev->regs_size || interface->csr_regs >= dev->regs+dev->regs_size)
{
fprintf(stderr, "Error: computed pointer out of range\n");
goto fail;
}
// Enumerate registers
interface->rb_list = enumerate_reg_block_list(interface->regs, dev->if_csr_offset, interface->regs_size);
if (!interface->rb_list)
{
fprintf(stderr, "Error: filed to enumerate blocks\n");
goto fail;
}
interface->if_ctrl_rb = find_reg_block(interface->rb_list, MQNIC_RB_IF_CTRL_TYPE, MQNIC_RB_IF_CTRL_VER, 0);
if (!interface->if_ctrl_rb)
{
fprintf(stderr, "Error: Interface control block not found\n");
goto fail;
}
interface->if_features = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_FEATURES);
interface->port_count = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_PORT_COUNT);
interface->sched_block_count = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_SCHED_COUNT);
interface->max_tx_mtu = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_MAX_TX_MTU);
interface->max_rx_mtu = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_MAX_RX_MTU);
interface->event_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_EVENT_QM_TYPE, MQNIC_RB_EVENT_QM_VER, 0);
if (!interface->event_queue_rb)
{
fprintf(stderr, "Error: Event queue block not found\n");
goto fail;
}
interface->event_queue_offset = mqnic_reg_read32(interface->event_queue_rb->regs, MQNIC_RB_EVENT_QM_REG_OFFSET);
interface->event_queue_count = mqnic_reg_read32(interface->event_queue_rb->regs, MQNIC_RB_EVENT_QM_REG_COUNT);
interface->event_queue_stride = mqnic_reg_read32(interface->event_queue_rb->regs, MQNIC_RB_EVENT_QM_REG_STRIDE);
if (interface->event_queue_count > MQNIC_MAX_EVENT_RINGS)
interface->event_queue_count = MQNIC_MAX_EVENT_RINGS;
interface->tx_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_TX_QM_TYPE, MQNIC_RB_TX_QM_VER, 0);
if (!interface->tx_queue_rb)
{
fprintf(stderr, "Error: TX queue block not found\n");
goto fail;
}
interface->tx_queue_offset = mqnic_reg_read32(interface->tx_queue_rb->regs, MQNIC_RB_TX_QM_REG_OFFSET);
interface->tx_queue_count = mqnic_reg_read32(interface->tx_queue_rb->regs, MQNIC_RB_TX_QM_REG_COUNT);
interface->tx_queue_stride = mqnic_reg_read32(interface->tx_queue_rb->regs, MQNIC_RB_TX_QM_REG_STRIDE);
if (interface->tx_queue_count > MQNIC_MAX_TX_RINGS)
interface->tx_queue_count = MQNIC_MAX_TX_RINGS;
interface->tx_cpl_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_TX_CQM_TYPE, MQNIC_RB_TX_CQM_VER, 0);
if (!interface->tx_cpl_queue_rb)
{
fprintf(stderr, "Error: TX completion queue block not found\n");
goto fail;
}
interface->tx_cpl_queue_offset = mqnic_reg_read32(interface->tx_cpl_queue_rb->regs, MQNIC_RB_TX_CQM_REG_OFFSET);
interface->tx_cpl_queue_count = mqnic_reg_read32(interface->tx_cpl_queue_rb->regs, MQNIC_RB_TX_CQM_REG_COUNT);
interface->tx_cpl_queue_stride = mqnic_reg_read32(interface->tx_cpl_queue_rb->regs, MQNIC_RB_TX_CQM_REG_STRIDE);
if (interface->tx_cpl_queue_count > MQNIC_MAX_TX_CPL_RINGS)
interface->tx_cpl_queue_count = MQNIC_MAX_TX_CPL_RINGS;
interface->rx_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_RX_QM_TYPE, MQNIC_RB_RX_QM_VER, 0);
if (!interface->rx_queue_rb)
{
fprintf(stderr, "Error: RX queue block not found\n");
goto fail;
}
interface->rx_queue_offset = mqnic_reg_read32(interface->rx_queue_rb->regs, MQNIC_RB_RX_QM_REG_OFFSET);
interface->rx_queue_count = mqnic_reg_read32(interface->rx_queue_rb->regs, MQNIC_RB_RX_QM_REG_COUNT);
interface->rx_queue_stride = mqnic_reg_read32(interface->rx_queue_rb->regs, MQNIC_RB_RX_QM_REG_STRIDE);
if (interface->rx_queue_count > MQNIC_MAX_RX_RINGS)
interface->rx_queue_count = MQNIC_MAX_RX_RINGS;
interface->rx_cpl_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_RX_CQM_TYPE, MQNIC_RB_RX_CQM_VER, 0);
if (!interface->rx_cpl_queue_rb)
{
fprintf(stderr, "Error: RX completion queue block not found\n");
goto fail;
}
interface->rx_cpl_queue_offset = mqnic_reg_read32(interface->rx_cpl_queue_rb->regs, MQNIC_RB_RX_CQM_REG_OFFSET);
interface->rx_cpl_queue_count = mqnic_reg_read32(interface->rx_cpl_queue_rb->regs, MQNIC_RB_RX_CQM_REG_COUNT);
interface->rx_cpl_queue_stride = mqnic_reg_read32(interface->rx_cpl_queue_rb->regs, MQNIC_RB_RX_CQM_REG_STRIDE);
if (interface->rx_cpl_queue_count > MQNIC_MAX_RX_CPL_RINGS)
interface->rx_cpl_queue_count = MQNIC_MAX_RX_CPL_RINGS;
for (int k = 0; k < interface->sched_block_count; k++)
{
struct reg_block *sched_block_rb = find_reg_block(interface->rb_list, MQNIC_RB_SCHED_BLOCK_TYPE, MQNIC_RB_SCHED_BLOCK_VER, k);
struct mqnic_sched_block *sched_block;
if (!sched_block_rb)
goto fail;
sched_block = mqnic_sched_block_open(interface, k, sched_block_rb);
if (!sched_block)
goto fail;
interface->sched_blocks[k] = sched_block;
}
return interface;
fail:
mqnic_if_close(interface);
return NULL;
}
void mqnic_if_close(struct mqnic_if *interface)
{
if (!interface)
return;
for (int k = 0; k < interface->sched_block_count; k++)
{
if (!interface->sched_blocks[k])
continue;
mqnic_sched_block_close(interface->sched_blocks[k]);
interface->sched_blocks[k] = NULL;
}
if (interface->rb_list)
free_reg_block_list(interface->rb_list);
free(interface);
}
struct mqnic_sched_block *mqnic_sched_block_open(struct mqnic_if *interface, int index, struct reg_block *block_rb)
{
struct mqnic_sched_block *block = calloc(1, sizeof(struct mqnic_sched_block));
if (!block)
return NULL;
int offset = mqnic_reg_read32(block_rb->regs, MQNIC_RB_SCHED_BLOCK_REG_OFFSET);
block->mqnic = interface->mqnic;
block->interface = interface;
block->index = index;
block->rb_list = enumerate_reg_block_list(interface->regs, offset, interface->regs_size);
if (!block->rb_list)
{
fprintf(stderr, "Error: filed to enumerate blocks\n");
goto fail;
}
block->sched_count = 0;
for (struct reg_block *rb = block->rb_list; rb->type && rb->version; rb++)
{
if (rb->type == MQNIC_RB_SCHED_RR_TYPE && rb->version == MQNIC_RB_SCHED_RR_VER)
{
struct mqnic_sched *sched = mqnic_sched_open(block, block->sched_count, rb);
if (!sched)
goto fail;
block->sched[block->sched_count++] = sched;
}
}
return block;
fail:
mqnic_sched_block_close(block);
return NULL;
}
void mqnic_sched_block_close(struct mqnic_sched_block *block)
{
if (!block)
return;
for (int k = 0; k < block->sched_count; k++)
{
if (!block->sched[k])
continue;
mqnic_sched_close(block->sched[k]);
block->sched[k] = NULL;
}
if (block->rb_list)
free_reg_block_list(block->rb_list);
free(block);
}
struct mqnic_sched *mqnic_sched_open(struct mqnic_sched_block *block, int index, struct reg_block *rb)
{
struct mqnic_sched *sched = calloc(1, sizeof(struct mqnic_sched));
if (!sched)
return NULL;
sched->mqnic = block->mqnic;
sched->interface = block->interface;
sched->sched_block = block;
sched->index = index;
sched->rb = rb;
sched->regs = rb->base + mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_OFFSET);
if (sched->regs >= block->interface->regs+block->interface->regs_size)
{
fprintf(stderr, "Error: computed pointer out of range\n");
goto fail;
}
sched->type = rb->type;
sched->offset = mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_OFFSET);
sched->channel_count = mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_CH_COUNT);
sched->channel_stride = mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_CH_STRIDE);
return sched;
fail:
mqnic_sched_close(sched);
return NULL;
}
void mqnic_sched_close(struct mqnic_sched *sched)
{
if (!sched)
return;
free(sched);
}

7
lib/mqnic/mqnic.h
View File

@ -1,6 +1,6 @@
/*
Copyright 2019, The Regents of the University of California.
Copyright 2019-2022, The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -36,7 +36,6 @@ either expressed or implied, of The Regents of the University of California.
#include <limits.h>
#include <stdint.h>
#include <unistd.h>
#include "mqnic_hw.h"
#include "reg_block.h"
@ -164,15 +163,19 @@ struct mqnic {
char pci_device_path[PATH_MAX];
};
// mqnic.c
struct mqnic *mqnic_open(const char *dev_name);
void mqnic_close(struct mqnic *dev);
// mqnic_if.c
struct mqnic_if *mqnic_if_open(struct mqnic *dev, int index, volatile uint8_t *regs);
void mqnic_if_close(struct mqnic_if *interface);
// mqnic_sched_block.c
struct mqnic_sched_block *mqnic_sched_block_open(struct mqnic_if *interface, int index, struct reg_block *block_rb);
void mqnic_sched_block_close(struct mqnic_sched_block *block);
// mqnic_scheduler.c
struct mqnic_sched *mqnic_sched_open(struct mqnic_sched_block *block, int index, struct reg_block *rb);
void mqnic_sched_close(struct mqnic_sched *sched);

199
lib/mqnic/mqnic_if.c Normal file
View File

@ -0,0 +1,199 @@
/*
Copyright 2019-2022, The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ''AS
IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OF THE UNIVERSITY OF CALIFORNIA OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of The Regents of the University of California.
*/
#include "mqnic.h"
#include <stdio.h>
#include <stdlib.h>
struct mqnic_if *mqnic_if_open(struct mqnic *dev, int index, volatile uint8_t *regs)
{
struct mqnic_if *interface = calloc(1, sizeof(struct mqnic_if));
if (!interface)
return NULL;
interface->mqnic = dev;
interface->index = index;
interface->regs_size = dev->if_stride;
interface->regs = regs;
interface->csr_regs = interface->regs + dev->if_csr_offset;
if (interface->regs >= dev->regs+dev->regs_size || interface->csr_regs >= dev->regs+dev->regs_size)
{
fprintf(stderr, "Error: computed pointer out of range\n");
goto fail;
}
// Enumerate registers
interface->rb_list = enumerate_reg_block_list(interface->regs, dev->if_csr_offset, interface->regs_size);
if (!interface->rb_list)
{
fprintf(stderr, "Error: filed to enumerate blocks\n");
goto fail;
}
interface->if_ctrl_rb = find_reg_block(interface->rb_list, MQNIC_RB_IF_CTRL_TYPE, MQNIC_RB_IF_CTRL_VER, 0);
if (!interface->if_ctrl_rb)
{
fprintf(stderr, "Error: Interface control block not found\n");
goto fail;
}
interface->if_features = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_FEATURES);
interface->port_count = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_PORT_COUNT);
interface->sched_block_count = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_SCHED_COUNT);
interface->max_tx_mtu = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_MAX_TX_MTU);
interface->max_rx_mtu = mqnic_reg_read32(interface->if_ctrl_rb->regs, MQNIC_RB_IF_CTRL_REG_MAX_RX_MTU);
interface->event_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_EVENT_QM_TYPE, MQNIC_RB_EVENT_QM_VER, 0);
if (!interface->event_queue_rb)
{
fprintf(stderr, "Error: Event queue block not found\n");
goto fail;
}
interface->event_queue_offset = mqnic_reg_read32(interface->event_queue_rb->regs, MQNIC_RB_EVENT_QM_REG_OFFSET);
interface->event_queue_count = mqnic_reg_read32(interface->event_queue_rb->regs, MQNIC_RB_EVENT_QM_REG_COUNT);
interface->event_queue_stride = mqnic_reg_read32(interface->event_queue_rb->regs, MQNIC_RB_EVENT_QM_REG_STRIDE);
if (interface->event_queue_count > MQNIC_MAX_EVENT_RINGS)
interface->event_queue_count = MQNIC_MAX_EVENT_RINGS;
interface->tx_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_TX_QM_TYPE, MQNIC_RB_TX_QM_VER, 0);
if (!interface->tx_queue_rb)
{
fprintf(stderr, "Error: TX queue block not found\n");
goto fail;
}
interface->tx_queue_offset = mqnic_reg_read32(interface->tx_queue_rb->regs, MQNIC_RB_TX_QM_REG_OFFSET);
interface->tx_queue_count = mqnic_reg_read32(interface->tx_queue_rb->regs, MQNIC_RB_TX_QM_REG_COUNT);
interface->tx_queue_stride = mqnic_reg_read32(interface->tx_queue_rb->regs, MQNIC_RB_TX_QM_REG_STRIDE);
if (interface->tx_queue_count > MQNIC_MAX_TX_RINGS)
interface->tx_queue_count = MQNIC_MAX_TX_RINGS;
interface->tx_cpl_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_TX_CQM_TYPE, MQNIC_RB_TX_CQM_VER, 0);
if (!interface->tx_cpl_queue_rb)
{
fprintf(stderr, "Error: TX completion queue block not found\n");
goto fail;
}
interface->tx_cpl_queue_offset = mqnic_reg_read32(interface->tx_cpl_queue_rb->regs, MQNIC_RB_TX_CQM_REG_OFFSET);
interface->tx_cpl_queue_count = mqnic_reg_read32(interface->tx_cpl_queue_rb->regs, MQNIC_RB_TX_CQM_REG_COUNT);
interface->tx_cpl_queue_stride = mqnic_reg_read32(interface->tx_cpl_queue_rb->regs, MQNIC_RB_TX_CQM_REG_STRIDE);
if (interface->tx_cpl_queue_count > MQNIC_MAX_TX_CPL_RINGS)
interface->tx_cpl_queue_count = MQNIC_MAX_TX_CPL_RINGS;
interface->rx_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_RX_QM_TYPE, MQNIC_RB_RX_QM_VER, 0);
if (!interface->rx_queue_rb)
{
fprintf(stderr, "Error: RX queue block not found\n");
goto fail;
}
interface->rx_queue_offset = mqnic_reg_read32(interface->rx_queue_rb->regs, MQNIC_RB_RX_QM_REG_OFFSET);
interface->rx_queue_count = mqnic_reg_read32(interface->rx_queue_rb->regs, MQNIC_RB_RX_QM_REG_COUNT);
interface->rx_queue_stride = mqnic_reg_read32(interface->rx_queue_rb->regs, MQNIC_RB_RX_QM_REG_STRIDE);
if (interface->rx_queue_count > MQNIC_MAX_RX_RINGS)
interface->rx_queue_count = MQNIC_MAX_RX_RINGS;
interface->rx_cpl_queue_rb = find_reg_block(interface->rb_list, MQNIC_RB_RX_CQM_TYPE, MQNIC_RB_RX_CQM_VER, 0);
if (!interface->rx_cpl_queue_rb)
{
fprintf(stderr, "Error: RX completion queue block not found\n");
goto fail;
}
interface->rx_cpl_queue_offset = mqnic_reg_read32(interface->rx_cpl_queue_rb->regs, MQNIC_RB_RX_CQM_REG_OFFSET);
interface->rx_cpl_queue_count = mqnic_reg_read32(interface->rx_cpl_queue_rb->regs, MQNIC_RB_RX_CQM_REG_COUNT);
interface->rx_cpl_queue_stride = mqnic_reg_read32(interface->rx_cpl_queue_rb->regs, MQNIC_RB_RX_CQM_REG_STRIDE);
if (interface->rx_cpl_queue_count > MQNIC_MAX_RX_CPL_RINGS)
interface->rx_cpl_queue_count = MQNIC_MAX_RX_CPL_RINGS;
for (int k = 0; k < interface->sched_block_count; k++)
{
struct reg_block *sched_block_rb = find_reg_block(interface->rb_list, MQNIC_RB_SCHED_BLOCK_TYPE, MQNIC_RB_SCHED_BLOCK_VER, k);
struct mqnic_sched_block *sched_block;
if (!sched_block_rb)
goto fail;
sched_block = mqnic_sched_block_open(interface, k, sched_block_rb);
if (!sched_block)
goto fail;
interface->sched_blocks[k] = sched_block;
}
return interface;
fail:
mqnic_if_close(interface);
return NULL;
}
void mqnic_if_close(struct mqnic_if *interface)
{
if (!interface)
return;
for (int k = 0; k < interface->sched_block_count; k++)
{
if (!interface->sched_blocks[k])
continue;
mqnic_sched_block_close(interface->sched_blocks[k]);
interface->sched_blocks[k] = NULL;
}
if (interface->rb_list)
free_reg_block_list(interface->rb_list);
free(interface);
}

100
lib/mqnic/mqnic_sched_block.c Normal file
View File

@ -0,0 +1,100 @@
/*
Copyright 2019-2022, The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ''AS
IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OF THE UNIVERSITY OF CALIFORNIA OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of The Regents of the University of California.
*/
#include "mqnic.h"
#include <stdio.h>
#include <stdlib.h>
struct mqnic_sched_block *mqnic_sched_block_open(struct mqnic_if *interface, int index, struct reg_block *block_rb)
{
struct mqnic_sched_block *block = calloc(1, sizeof(struct mqnic_sched_block));
if (!block)
return NULL;
int offset = mqnic_reg_read32(block_rb->regs, MQNIC_RB_SCHED_BLOCK_REG_OFFSET);
block->mqnic = interface->mqnic;
block->interface = interface;
block->index = index;
block->rb_list = enumerate_reg_block_list(interface->regs, offset, interface->regs_size);
if (!block->rb_list)
{
fprintf(stderr, "Error: filed to enumerate blocks\n");
goto fail;
}
block->sched_count = 0;
for (struct reg_block *rb = block->rb_list; rb->type && rb->version; rb++)
{
if (rb->type == MQNIC_RB_SCHED_RR_TYPE && rb->version == MQNIC_RB_SCHED_RR_VER)
{
struct mqnic_sched *sched = mqnic_sched_open(block, block->sched_count, rb);
if (!sched)
goto fail;
block->sched[block->sched_count++] = sched;
}
}
return block;
fail:
mqnic_sched_block_close(block);
return NULL;
}
void mqnic_sched_block_close(struct mqnic_sched_block *block)
{
if (!block)
return;
for (int k = 0; k < block->sched_count; k++)
{
if (!block->sched[k])
continue;
mqnic_sched_close(block->sched[k]);
block->sched[k] = NULL;
}
if (block->rb_list)
free_reg_block_list(block->rb_list);
free(block);
}

79
lib/mqnic/mqnic_scheduler.c Normal file
View File

@ -0,0 +1,79 @@
/*
Copyright 2019-2022, The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ''AS
IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OF THE UNIVERSITY OF CALIFORNIA OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of The Regents of the University of California.
*/
#include "mqnic.h"
#include <stdio.h>
#include <stdlib.h>
struct mqnic_sched *mqnic_sched_open(struct mqnic_sched_block *block, int index, struct reg_block *rb)
{
struct mqnic_sched *sched = calloc(1, sizeof(struct mqnic_sched));
if (!sched)
return NULL;
sched->mqnic = block->mqnic;
sched->interface = block->interface;
sched->sched_block = block;
sched->index = index;
sched->rb = rb;
sched->regs = rb->base + mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_OFFSET);
if (sched->regs >= block->interface->regs+block->interface->regs_size)
{
fprintf(stderr, "Error: computed pointer out of range\n");
goto fail;
}
sched->type = rb->type;
sched->offset = mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_OFFSET);
sched->channel_count = mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_CH_COUNT);
sched->channel_stride = mqnic_reg_read32(rb->regs, MQNIC_RB_SCHED_RR_REG_CH_STRIDE);
return sched;
fail:
mqnic_sched_close(sched);
return NULL;
}
void mqnic_sched_close(struct mqnic_sched *sched)
{
if (!sched)
return;
free(sched);
}