/*
* Copyright (c) 2001-2020 Mellanox Technologies, Ltd. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "qp_mgr_eth_direct.h"
#include "vlogger/vlogger.h"
#include "vma/util/valgrind.h"
#include "cq_mgr_mlx5.h"
#include "ring_simple.h"
#if defined(DEFINED_DIRECT_VERBS)
#undef MODULE_NAME
#define MODULE_NAME "qp_mgr_direct"
#define qp_logpanic __log_info_panic
#define qp_logerr __log_info_err
#define qp_logwarn __log_info_warn
#define qp_loginfo __log_info_info
#define qp_logdbg __log_info_dbg
#define qp_logfunc __log_info_func
#define qp_logfuncall __log_info_funcall
qp_mgr_eth_direct::qp_mgr_eth_direct(const ring_simple* p_ring,
const ib_ctx_handler* p_context, const uint8_t port_num,
ibv_comp_channel* p_rx_comp_event_channel,
const uint32_t tx_num_wr, const uint16_t vlan):
qp_mgr_eth_mlx5(p_ring, p_context, port_num,
p_rx_comp_event_channel, tx_num_wr, vlan, false)
{
// must be called from this class to call derived prepare_ibv_qp
if (configure(p_rx_comp_event_channel)) {
throw_vma_exception("failed creating qp_mgr_eth");
}
qp_logfunc("m_p_qp= %p", m_qp);
}
cq_mgr* qp_mgr_eth_direct::init_tx_cq_mgr()
{
m_tx_num_wr = m_p_ib_ctx_handler->get_ibv_device_attr()->max_qp_wr;
return new cq_mgr_mlx5(m_p_ring, m_p_ib_ctx_handler, m_tx_num_wr, m_p_ring->get_tx_comp_event_channel(), false);
}
int qp_mgr_eth_direct::prepare_ibv_qp(vma_ibv_qp_init_attr& qp_init_attr)
{
qp_init_attr.cap.max_send_wr = m_p_ib_ctx_handler->get_ibv_device_attr()->max_qp_wr;
qp_init_attr.cap.max_send_sge = 1;
qp_init_attr.cap.max_recv_sge = 1;
qp_init_attr.cap.max_inline_data = 0;
#if defined(DEFINED_IBV_DEVICE_CROSS_CHANNEL)
qp_init_attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_CREATE_FLAGS;
qp_init_attr.exp_create_flags |= IBV_EXP_QP_CREATE_CROSS_CHANNEL;
qp_logdbg("Cross-Channel is in qp");
#else
qp_logdbg("Cross-Channel is not supported in qp");
#endif /* DEFINED_IBV_DEVICE_CROSS_CHANNEL */
return qp_mgr_eth_mlx5::prepare_ibv_qp(qp_init_attr);
}
void qp_mgr_eth_direct::up()
{
init_sq();
m_p_last_tx_mem_buf_desc = NULL;
modify_qp_to_ready_state();
m_p_cq_mgr_rx->add_qp_rx(this);
}
void qp_mgr_eth_direct::down()
{
qp_logdbg("QP current state: %d", priv_ibv_query_qp_state(m_qp));
modify_qp_to_error_state();
// let the QP drain all wqe's to flushed cqe's now that we moved
// it to error state and post_sent final trigger for completion
usleep(1000);
m_p_cq_mgr_rx->del_qp_rx(this);
}
bool qp_mgr_eth_direct::fill_hw_descriptors(vma_mlx_hw_device_data &data)
{
qp_logdbg("QPN: %d dbrec: %p QP.info.SQ. buf: %p wqe_cnt: %d "
"stride: %d bf.reg: %p",
m_mlx5_qp.qpn, m_mlx5_qp.sq.dbrec, m_mlx5_qp.sq.buf, m_mlx5_qp.sq.wqe_cnt,
m_mlx5_qp.sq.stride, m_mlx5_qp.bf.reg);
data.sq_data.sq_num = m_mlx5_qp.qpn;
data.sq_data.wq_data.dbrec = m_mlx5_qp.sq.dbrec;
data.sq_data.wq_data.buf = m_mlx5_qp.sq.buf;
data.sq_data.wq_data.stride = m_mlx5_qp.sq.stride;
data.sq_data.wq_data.wqe_cnt = m_mlx5_qp.sq.wqe_cnt;
data.sq_data.bf.reg = m_mlx5_qp.bf.reg;
data.sq_data.bf.offset = m_mlx5_qp.bf.offset;
data.sq_data.bf.size = m_mlx5_qp.bf.size;
data.rq_data.wq_data.buf = m_mlx5_qp.rq.buf;
data.rq_data.wq_data.dbrec = m_mlx5_qp.rq.dbrec;
data.rq_data.wq_data.stride = m_mlx5_qp.rq.stride;
data.rq_data.wq_data.wqe_cnt = m_mlx5_qp.rq.wqe_cnt;
data.rq_data.head = &m_mlx5_qp.rq.head;
data.rq_data.tail = &m_mlx5_qp.rq.tail;
return true;
}
qp_mgr_eth_direct::~qp_mgr_eth_direct()
{
if (m_qp) {
IF_VERBS_FAILURE(ibv_destroy_qp(m_qp)) {
qp_logdbg("QP destroy failure (errno = %d %m)", -errno);
} ENDIF_VERBS_FAILURE;
VALGRIND_MAKE_MEM_UNDEFINED(m_qp, sizeof(ibv_qp));
}
m_qp = NULL;
delete m_p_cq_mgr_tx;
m_p_cq_mgr_tx = NULL;
delete m_p_cq_mgr_rx;
m_p_cq_mgr_rx = NULL;
}
#endif /* DEFINED_DIRECT_VERBS */