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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* 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 Intel Corporation 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.
*/
#ifndef _IVSHMEM_COMMON_H_
#define _IVSHMEM_COMMON_H_
#define RTE_LOGTYPE_L2FWD_IVSHMEM RTE_LOGTYPE_USER1
#define CTRL_MZ_NAME "CTRL_MEMZONE"
#define MBUF_MP_NAME "MBUF_MEMPOOL"
#define RX_RING_PREFIX "RX_"
#define TX_RING_PREFIX "TX_"
/* A tsc-based timer responsible for triggering statistics printout */
#define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
#define MAX_TIMER_PERIOD 86400 /* 1 day max */
static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
#define DIM(x)\
(sizeof(x)/sizeof(x)[0])
#define MAX_PKT_BURST 32
const struct rte_memzone * ctrl_mz;
enum l2fwd_state {
STATE_NONE = 0,
STATE_FWD,
STATE_EXIT,
STATE_FAIL
};
/* Per-port statistics struct */
struct port_statistics {
uint64_t tx;
uint64_t rx;
uint64_t dropped;
} __rte_cache_aligned;
struct mbuf_table {
unsigned len;
struct rte_mbuf *m_table[MAX_PKT_BURST * 2]; /**< allow up to two bursts */
};
struct vm_port_param {
struct rte_ring * rx_ring; /**< receiving ring for current port */
struct rte_ring * tx_ring; /**< transmitting ring for current port */
struct vm_port_param * dst; /**< current port's destination port */
volatile struct port_statistics stats; /**< statistics for current port */
struct ether_addr ethaddr; /**< Ethernet address of the port */
};
/* control structure, to synchronize host and VM */
struct ivshmem_ctrl {
rte_spinlock_t lock;
uint8_t nb_ports; /**< total nr of ports */
volatile enum l2fwd_state state; /**< report state */
struct vm_port_param vm_ports[RTE_MAX_ETHPORTS];
};
struct ivshmem_ctrl * ctrl;
static unsigned int l2fwd_ivshmem_rx_queue_per_lcore = 1;
static void sighandler(int __rte_unused s)
{
ctrl->state = STATE_EXIT;
}
static void sigsetup(void)
{
struct sigaction sigIntHandler;
sigIntHandler.sa_handler = sighandler;
sigemptyset(&sigIntHandler.sa_mask);
sigIntHandler.sa_flags = 0;
sigaction(SIGINT, &sigIntHandler, NULL);
}
#endif /* _IVSHMEM_COMMON_H_ */
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