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/*
* BSD LICENSE
*
* Copyright (C) Cavium networks Ltd. 2016.
*
* 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 Cavium networks 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 __THUNDERX_NICVF_MBOX__
#define __THUNDERX_NICVF_MBOX__
#include <stdint.h>
#include "nicvf_plat.h"
#include "../nicvf_struct.h"
/* PF <--> VF Mailbox communication
* Two 64bit registers are shared between PF and VF for each VF
* Writing into second register means end of message.
*/
/* PF <--> VF mailbox communication */
#define NIC_PF_VF_MAILBOX_SIZE 2
#define NIC_MBOX_MSG_TIMEOUT 2000 /* ms */
/* Mailbox message types */
#define NIC_MBOX_MSG_INVALID 0x00 /* Invalid message */
#define NIC_MBOX_MSG_READY 0x01 /* Is PF ready to rcv msgs */
#define NIC_MBOX_MSG_ACK 0x02 /* ACK the message received */
#define NIC_MBOX_MSG_NACK 0x03 /* NACK the message received */
#define NIC_MBOX_MSG_QS_CFG 0x04 /* Configure Qset */
#define NIC_MBOX_MSG_RQ_CFG 0x05 /* Configure receive queue */
#define NIC_MBOX_MSG_SQ_CFG 0x06 /* Configure Send queue */
#define NIC_MBOX_MSG_RQ_DROP_CFG 0x07 /* Configure receive queue */
#define NIC_MBOX_MSG_SET_MAC 0x08 /* Add MAC ID to DMAC filter */
#define NIC_MBOX_MSG_SET_MAX_FRS 0x09 /* Set max frame size */
#define NIC_MBOX_MSG_CPI_CFG 0x0A /* Config CPI, RSSI */
#define NIC_MBOX_MSG_RSS_SIZE 0x0B /* Get RSS indir_tbl size */
#define NIC_MBOX_MSG_RSS_CFG 0x0C /* Config RSS table */
#define NIC_MBOX_MSG_RSS_CFG_CONT 0x0D /* RSS config continuation */
#define NIC_MBOX_MSG_RQ_BP_CFG 0x0E /* RQ backpressure config */
#define NIC_MBOX_MSG_RQ_SW_SYNC 0x0F /* Flush inflight pkts to RQ */
#define NIC_MBOX_MSG_BGX_LINK_CHANGE 0x11 /* BGX:LMAC link status */
#define NIC_MBOX_MSG_ALLOC_SQS 0x12 /* Allocate secondary Qset */
#define NIC_MBOX_MSG_LOOPBACK 0x16 /* Set interface in loopback */
#define NIC_MBOX_MSG_RESET_STAT_COUNTER 0x17 /* Reset statistics counters */
#define NIC_MBOX_MSG_CFG_DONE 0x7E /* VF configuration done */
#define NIC_MBOX_MSG_SHUTDOWN 0x7F /* VF is being shutdown */
#define NIC_MBOX_MSG_RES_BIT 0x80 /* Reset bit from PF */
#define NIC_MBOX_MSG_MAX 0x100 /* Maximum number of messages */
#define NIC_MBOX_MSG_RSS_SIZE_RES_BIT \
(NIC_MBOX_MSG_RSS_SIZE | NIC_MBOX_MSG_RES_BIT)
#define NIC_MBOX_MSG_ALLOC_SQS_RES_BIT \
(NIC_MBOX_MSG_ALLOC_SQS | NIC_MBOX_MSG_RES_BIT)
/* Get vNIC VF configuration */
struct nic_cfg_msg {
uint8_t msg;
uint8_t vf_id;
uint8_t node_id;
bool tns_mode:1;
bool sqs_mode:1;
bool loopback_supported:1;
uint8_t mac_addr[NICVF_MAC_ADDR_SIZE];
};
/* Qset configuration */
struct qs_cfg_msg {
uint8_t msg;
uint8_t num;
uint8_t sqs_count;
uint64_t cfg;
};
/* Receive queue configuration */
struct rq_cfg_msg {
uint8_t msg;
uint8_t qs_num;
uint8_t rq_num;
uint64_t cfg;
};
/* Send queue configuration */
struct sq_cfg_msg {
uint8_t msg;
uint8_t qs_num;
uint8_t sq_num;
bool sqs_mode;
uint64_t cfg;
};
/* Set VF's MAC address */
struct set_mac_msg {
uint8_t msg;
uint8_t vf_id;
uint8_t mac_addr[NICVF_MAC_ADDR_SIZE];
};
/* Set Maximum frame size */
struct set_frs_msg {
uint8_t msg;
uint8_t vf_id;
uint16_t max_frs;
};
/* Set CPI algorithm type */
struct cpi_cfg_msg {
uint8_t msg;
uint8_t vf_id;
uint8_t rq_cnt;
uint8_t cpi_alg;
};
/* Get RSS table size */
struct rss_sz_msg {
uint8_t msg;
uint8_t vf_id;
uint16_t ind_tbl_size;
};
/* Set RSS configuration */
struct rss_cfg_msg {
uint8_t msg;
uint8_t vf_id;
uint8_t hash_bits;
uint8_t tbl_len;
uint8_t tbl_offset;
#define RSS_IND_TBL_LEN_PER_MBX_MSG 8
uint8_t ind_tbl[RSS_IND_TBL_LEN_PER_MBX_MSG];
};
/* Physical interface link status */
struct bgx_link_status {
uint8_t msg;
uint8_t link_up;
uint8_t duplex;
uint32_t speed;
};
/* Allocate additional SQS to VF */
struct sqs_alloc {
uint8_t msg;
uint8_t spec;
uint8_t qs_count;
uint8_t svf[MAX_SQS_PER_VF];
};
/* Set interface in loopback mode */
struct set_loopback {
uint8_t msg;
uint8_t vf_id;
bool enable;
};
/* Reset statistics counters */
struct reset_stat_cfg {
uint8_t msg;
/* Bitmap to select NIC_PF_VNIC(vf_id)_RX_STAT(0..13) */
uint16_t rx_stat_mask;
/* Bitmap to select NIC_PF_VNIC(vf_id)_TX_STAT(0..4) */
uint8_t tx_stat_mask;
/* Bitmap to select NIC_PF_QS(0..127)_RQ(0..7)_STAT(0..1)
* bit14, bit15 NIC_PF_QS(vf_id)_RQ7_STAT(0..1)
* bit12, bit13 NIC_PF_QS(vf_id)_RQ6_STAT(0..1)
* ..
* bit2, bit3 NIC_PF_QS(vf_id)_RQ1_STAT(0..1)
* bit0, bit1 NIC_PF_QS(vf_id)_RQ0_STAT(0..1)
*/
uint16_t rq_stat_mask;
/* Bitmap to select NIC_PF_QS(0..127)_SQ(0..7)_STAT(0..1)
* bit14, bit15 NIC_PF_QS(vf_id)_SQ7_STAT(0..1)
* bit12, bit13 NIC_PF_QS(vf_id)_SQ6_STAT(0..1)
* ..
* bit2, bit3 NIC_PF_QS(vf_id)_SQ1_STAT(0..1)
* bit0, bit1 NIC_PF_QS(vf_id)_SQ0_STAT(0..1)
*/
uint16_t sq_stat_mask;
};
struct nic_mbx {
/* 128 bit shared memory between PF and each VF */
union {
struct { uint8_t msg; } msg;
struct nic_cfg_msg nic_cfg;
struct qs_cfg_msg qs;
struct rq_cfg_msg rq;
struct sq_cfg_msg sq;
struct set_mac_msg mac;
struct set_frs_msg frs;
struct cpi_cfg_msg cpi_cfg;
struct rss_sz_msg rss_size;
struct rss_cfg_msg rss_cfg;
struct bgx_link_status link_status;
struct sqs_alloc sqs_alloc;
struct set_loopback lbk;
struct reset_stat_cfg reset_stat;
};
};
NICVF_STATIC_ASSERT(sizeof(struct nic_mbx) <= 16);
int nicvf_handle_mbx_intr(struct nicvf *nic);
int nicvf_mbox_check_pf_ready(struct nicvf *nic);
int nicvf_mbox_qset_config(struct nicvf *nic, struct pf_qs_cfg *qs_cfg);
int nicvf_mbox_request_sqs(struct nicvf *nic);
int nicvf_mbox_rq_config(struct nicvf *nic, uint16_t qidx,
struct pf_rq_cfg *pf_rq_cfg);
int nicvf_mbox_sq_config(struct nicvf *nic, uint16_t qidx);
int nicvf_mbox_rq_drop_config(struct nicvf *nic, uint16_t qidx, bool enable);
int nicvf_mbox_rq_bp_config(struct nicvf *nic, uint16_t qidx, bool enable);
int nicvf_mbox_set_mac_addr(struct nicvf *nic,
const uint8_t mac[NICVF_MAC_ADDR_SIZE]);
int nicvf_mbox_config_cpi(struct nicvf *nic, uint32_t qcnt);
int nicvf_mbox_get_rss_size(struct nicvf *nic);
int nicvf_mbox_config_rss(struct nicvf *nic);
int nicvf_mbox_update_hw_max_frs(struct nicvf *nic, uint16_t mtu);
int nicvf_mbox_rq_sync(struct nicvf *nic);
int nicvf_mbox_loopback_config(struct nicvf *nic, bool enable);
int nicvf_mbox_reset_stat_counters(struct nicvf *nic, uint16_t rx_stat_mask,
uint8_t tx_stat_mask, uint16_t rq_stat_mask, uint16_t sq_stat_mask);
void nicvf_mbox_shutdown(struct nicvf *nic);
void nicvf_mbox_cfg_done(struct nicvf *nic);
#endif /* __THUNDERX_NICVF_MBOX__ */
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