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/*-
* BSD LICENSE
*
* Copyright (c) 2015-2017 Atomic Rules LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* OWNER 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.
*/
#include <unistd.h>
#include "ark_logs.h"
#include "ark_mpu.h"
uint16_t
ark_api_num_queues(struct ark_mpu_t *mpu)
{
return mpu->hw.num_queues;
}
uint16_t
ark_api_num_queues_per_port(struct ark_mpu_t *mpu, uint16_t ark_ports)
{
return mpu->hw.num_queues / ark_ports;
}
int
ark_mpu_verify(struct ark_mpu_t *mpu, uint32_t obj_size)
{
uint32_t version;
version = mpu->id.vernum & 0x0000fF00;
if ((mpu->id.idnum != 0x2055504d) ||
(mpu->hw.obj_size != obj_size) ||
(version != 0x00003100)) {
PMD_DRV_LOG(ERR,
" MPU module not found as expected %08x"
" \"%c%c%c%c %c%c%c%c\"\n",
mpu->id.idnum,
mpu->id.id[0], mpu->id.id[1],
mpu->id.id[2], mpu->id.id[3],
mpu->id.ver[0], mpu->id.ver[1],
mpu->id.ver[2], mpu->id.ver[3]);
PMD_DRV_LOG(ERR,
" MPU HW num_queues: %u hw_depth %u,"
" obj_size: %u, obj_per_mrr: %u"
" Expected size %u\n",
mpu->hw.num_queues,
mpu->hw.hw_depth,
mpu->hw.obj_size,
mpu->hw.obj_per_mrr,
obj_size);
return -1;
}
return 0;
}
void
ark_mpu_stop(struct ark_mpu_t *mpu)
{
mpu->cfg.command = MPU_CMD_STOP;
}
void
ark_mpu_start(struct ark_mpu_t *mpu)
{
mpu->cfg.command = MPU_CMD_RUN;
}
int
ark_mpu_reset(struct ark_mpu_t *mpu)
{
int cnt = 0;
mpu->cfg.command = MPU_CMD_RESET;
while (mpu->cfg.command != MPU_CMD_IDLE) {
if (cnt++ > 1000)
break;
usleep(10);
}
if (mpu->cfg.command != MPU_CMD_IDLE) {
mpu->cfg.command = MPU_CMD_FORCE_RESET;
usleep(10);
}
ark_mpu_reset_stats(mpu);
return mpu->cfg.command != MPU_CMD_IDLE;
}
void
ark_mpu_reset_stats(struct ark_mpu_t *mpu)
{
mpu->stats.pci_request = 1; /* reset stats */
}
int
ark_mpu_configure(struct ark_mpu_t *mpu, rte_iova_t ring, uint32_t ring_size,
int is_tx)
{
ark_mpu_reset(mpu);
if (!rte_is_power_of_2(ring_size)) {
PMD_DRV_LOG(ERR, "ARK: Invalid ring size for MPU %d\n",
ring_size);
return -1;
}
mpu->cfg.ring_base = ring;
mpu->cfg.ring_size = ring_size;
mpu->cfg.ring_mask = ring_size - 1;
mpu->cfg.min_host_move = is_tx ? 1 : mpu->hw.obj_per_mrr;
mpu->cfg.min_hw_move = mpu->hw.obj_per_mrr;
mpu->cfg.sw_prod_index = 0;
mpu->cfg.hw_cons_index = 0;
return 0;
}
void
ark_mpu_dump(struct ark_mpu_t *mpu, const char *code, uint16_t qid)
{
/* DUMP to see that we have started */
PMD_DEBUG_LOG(DEBUG, "MPU: %s Q: %3u sw_prod %u, hw_cons: %u\n",
code, qid,
mpu->cfg.sw_prod_index, mpu->cfg.hw_cons_index);
PMD_DEBUG_LOG(DEBUG, "MPU: %s state: %d count %d, reserved %d"
" data 0x%08x_%08x 0x%08x_%08x\n",
code,
mpu->debug.state, mpu->debug.count,
mpu->debug.reserved,
mpu->debug.peek[1],
mpu->debug.peek[0],
mpu->debug.peek[3],
mpu->debug.peek[2]
);
PMD_STATS_LOG(INFO, "MPU: %s Q: %3u"
ARK_SU64 ARK_SU64 ARK_SU64 ARK_SU64
ARK_SU64 ARK_SU64 ARK_SU64 "\n",
code, qid,
"PCI Request:", mpu->stats.pci_request,
"Queue_empty", mpu->stats.q_empty,
"Queue_q1", mpu->stats.q_q1,
"Queue_q2", mpu->stats.q_q2,
"Queue_q3", mpu->stats.q_q3,
"Queue_q4", mpu->stats.q_q4,
"Queue_full", mpu->stats.q_full
);
}
void
ark_mpu_dump_setup(struct ark_mpu_t *mpu, uint16_t q_id)
{
PMD_DEBUG_LOG(DEBUG, "MPU Setup Q: %u"
ARK_SU64X "\n",
q_id,
"ring_base", mpu->cfg.ring_base
);
}
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