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/*
* Huawei HiNIC PCI Express Linux driver
* Copyright(c) 2017 Huawei Technologies Co., Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
*/
#ifndef HINIC_HW_QP_H
#define HINIC_HW_QP_H
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/sizes.h>
#include <linux/pci.h>
#include <linux/skbuff.h>
#include "hinic_common.h"
#include "hinic_hw_if.h"
#include "hinic_hw_wqe.h"
#include "hinic_hw_wq.h"
#include "hinic_hw_qp_ctxt.h"
#define HINIC_SQ_DB_INFO_PI_HI_SHIFT 0
#define HINIC_SQ_DB_INFO_QID_SHIFT 8
#define HINIC_SQ_DB_INFO_PATH_SHIFT 23
#define HINIC_SQ_DB_INFO_COS_SHIFT 24
#define HINIC_SQ_DB_INFO_TYPE_SHIFT 27
#define HINIC_SQ_DB_INFO_PI_HI_MASK 0xFF
#define HINIC_SQ_DB_INFO_QID_MASK 0x3FF
#define HINIC_SQ_DB_INFO_PATH_MASK 0x1
#define HINIC_SQ_DB_INFO_COS_MASK 0x7
#define HINIC_SQ_DB_INFO_TYPE_MASK 0x1F
#define HINIC_SQ_DB_INFO_SET(val, member) \
(((u32)(val) & HINIC_SQ_DB_INFO_##member##_MASK) \
<< HINIC_SQ_DB_INFO_##member##_SHIFT)
#define HINIC_SQ_WQEBB_SIZE 64
#define HINIC_RQ_WQEBB_SIZE 32
#define HINIC_SQ_PAGE_SIZE SZ_4K
#define HINIC_RQ_PAGE_SIZE SZ_4K
#define HINIC_SQ_DEPTH SZ_4K
#define HINIC_RQ_DEPTH SZ_4K
/* In any change to HINIC_RX_BUF_SZ, HINIC_RX_BUF_SZ_IDX must be changed */
#define HINIC_RX_BUF_SZ 2048
#define HINIC_RX_BUF_SZ_IDX HINIC_RX_BUF_SZ_2048_IDX
#define HINIC_MIN_TX_WQE_SIZE(wq) \
ALIGN(HINIC_SQ_WQE_SIZE(1), (wq)->wqebb_size)
#define HINIC_MIN_TX_NUM_WQEBBS(sq) \
(HINIC_MIN_TX_WQE_SIZE((sq)->wq) / (sq)->wq->wqebb_size)
enum hinic_rx_buf_sz_idx {
HINIC_RX_BUF_SZ_32_IDX,
HINIC_RX_BUF_SZ_64_IDX,
HINIC_RX_BUF_SZ_96_IDX,
HINIC_RX_BUF_SZ_128_IDX,
HINIC_RX_BUF_SZ_192_IDX,
HINIC_RX_BUF_SZ_256_IDX,
HINIC_RX_BUF_SZ_384_IDX,
HINIC_RX_BUF_SZ_512_IDX,
HINIC_RX_BUF_SZ_768_IDX,
HINIC_RX_BUF_SZ_1024_IDX,
HINIC_RX_BUF_SZ_1536_IDX,
HINIC_RX_BUF_SZ_2048_IDX,
HINIC_RX_BUF_SZ_3072_IDX,
HINIC_RX_BUF_SZ_4096_IDX,
HINIC_RX_BUF_SZ_8192_IDX,
HINIC_RX_BUF_SZ_16384_IDX,
};
struct hinic_sq {
struct hinic_hwif *hwif;
struct hinic_wq *wq;
u32 irq;
u16 msix_entry;
void *hw_ci_addr;
dma_addr_t hw_ci_dma_addr;
void __iomem *db_base;
struct sk_buff **saved_skb;
};
struct hinic_rq {
struct hinic_hwif *hwif;
struct hinic_wq *wq;
u32 irq;
u16 msix_entry;
size_t buf_sz;
struct sk_buff **saved_skb;
struct hinic_rq_cqe **cqe;
dma_addr_t *cqe_dma;
u16 *pi_virt_addr;
dma_addr_t pi_dma_addr;
};
struct hinic_qp {
struct hinic_sq sq;
struct hinic_rq rq;
u16 q_id;
};
void hinic_qp_prepare_header(struct hinic_qp_ctxt_header *qp_ctxt_hdr,
enum hinic_qp_ctxt_type ctxt_type,
u16 num_queues, u16 max_queues);
void hinic_sq_prepare_ctxt(struct hinic_sq_ctxt *sq_ctxt,
struct hinic_sq *sq, u16 global_qid);
void hinic_rq_prepare_ctxt(struct hinic_rq_ctxt *rq_ctxt,
struct hinic_rq *rq, u16 global_qid);
int hinic_init_sq(struct hinic_sq *sq, struct hinic_hwif *hwif,
struct hinic_wq *wq, struct msix_entry *entry, void *ci_addr,
dma_addr_t ci_dma_addr, void __iomem *db_base);
void hinic_clean_sq(struct hinic_sq *sq);
int hinic_init_rq(struct hinic_rq *rq, struct hinic_hwif *hwif,
struct hinic_wq *wq, struct msix_entry *entry);
void hinic_clean_rq(struct hinic_rq *rq);
int hinic_get_sq_free_wqebbs(struct hinic_sq *sq);
int hinic_get_rq_free_wqebbs(struct hinic_rq *rq);
void hinic_sq_prepare_wqe(struct hinic_sq *sq, u16 prod_idx,
struct hinic_sq_wqe *wqe, struct hinic_sge *sges,
int nr_sges);
void hinic_sq_write_db(struct hinic_sq *sq, u16 prod_idx, unsigned int wqe_size,
unsigned int cos);
struct hinic_sq_wqe *hinic_sq_get_wqe(struct hinic_sq *sq,
unsigned int wqe_size, u16 *prod_idx);
void hinic_sq_write_wqe(struct hinic_sq *sq, u16 prod_idx,
struct hinic_sq_wqe *wqe, struct sk_buff *skb,
unsigned int wqe_size);
struct hinic_sq_wqe *hinic_sq_read_wqe(struct hinic_sq *sq,
struct sk_buff **skb,
unsigned int wqe_size, u16 *cons_idx);
struct hinic_sq_wqe *hinic_sq_read_wqebb(struct hinic_sq *sq,
struct sk_buff **skb,
unsigned int *wqe_size, u16 *cons_idx);
void hinic_sq_put_wqe(struct hinic_sq *sq, unsigned int wqe_size);
void hinic_sq_get_sges(struct hinic_sq_wqe *wqe, struct hinic_sge *sges,
int nr_sges);
struct hinic_rq_wqe *hinic_rq_get_wqe(struct hinic_rq *rq,
unsigned int wqe_size, u16 *prod_idx);
void hinic_rq_write_wqe(struct hinic_rq *rq, u16 prod_idx,
struct hinic_rq_wqe *wqe, struct sk_buff *skb);
struct hinic_rq_wqe *hinic_rq_read_wqe(struct hinic_rq *rq,
unsigned int wqe_size,
struct sk_buff **skb, u16 *cons_idx);
struct hinic_rq_wqe *hinic_rq_read_next_wqe(struct hinic_rq *rq,
unsigned int wqe_size,
struct sk_buff **skb,
u16 *cons_idx);
void hinic_rq_put_wqe(struct hinic_rq *rq, u16 cons_idx,
unsigned int wqe_size);
void hinic_rq_get_sge(struct hinic_rq *rq, struct hinic_rq_wqe *wqe,
u16 cons_idx, struct hinic_sge *sge);
void hinic_rq_prepare_wqe(struct hinic_rq *rq, u16 prod_idx,
struct hinic_rq_wqe *wqe, struct hinic_sge *sge);
void hinic_rq_update(struct hinic_rq *rq, u16 prod_idx);
#endif
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