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/*******************************************************************************
*
* Copyright (c) 2015-2016 Intel Corporation. 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
* OpenFabrics.org 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.
*
*******************************************************************************/
#ifndef I40IW_PUDA_H
#define I40IW_PUDA_H
#define I40IW_IEQ_MPA_FRAMING 6
struct i40iw_sc_dev;
struct i40iw_sc_qp;
struct i40iw_sc_cq;
enum puda_resource_type {
I40IW_PUDA_RSRC_TYPE_ILQ = 1,
I40IW_PUDA_RSRC_TYPE_IEQ
};
enum puda_rsrc_complete {
PUDA_CQ_CREATED = 1,
PUDA_QP_CREATED,
PUDA_TX_COMPLETE,
PUDA_RX_COMPLETE,
PUDA_HASH_CRC_COMPLETE
};
struct i40iw_puda_completion_info {
struct i40iw_qp_uk *qp;
u8 q_type;
u8 vlan_valid;
u8 l3proto;
u8 l4proto;
u16 payload_len;
u32 compl_error; /* No_err=0, else major and minor err code */
u32 qp_id;
u32 wqe_idx;
};
struct i40iw_puda_send_info {
u64 paddr; /* Physical address */
u32 len;
u8 tcplen;
u8 maclen;
bool ipv4;
bool doloopback;
void *scratch;
};
struct i40iw_puda_buf {
struct list_head list; /* MUST be first entry */
struct i40iw_dma_mem mem; /* DMA memory for the buffer */
struct i40iw_puda_buf *next; /* for alloclist in rsrc struct */
struct i40iw_virt_mem buf_mem; /* Buffer memory for this buffer */
void *scratch;
u8 *iph;
u8 *tcph;
u8 *data;
u16 datalen;
u16 vlan_id;
u8 tcphlen; /* tcp length in bytes */
u8 maclen; /* mac length in bytes */
u32 totallen; /* machlen+iphlen+tcphlen+datalen */
atomic_t refcount;
u8 hdrlen;
bool ipv4;
u32 seqnum;
};
struct i40iw_puda_rsrc_info {
enum puda_resource_type type; /* ILQ or IEQ */
u32 count;
u16 pd_id;
u32 cq_id;
u32 qp_id;
u32 sq_size;
u32 rq_size;
u16 buf_size;
u16 mss;
u32 tx_buf_cnt; /* total bufs allocated will be rq_size + tx_buf_cnt */
void (*receive)(struct i40iw_sc_dev *, struct i40iw_puda_buf *);
void (*xmit_complete)(struct i40iw_sc_dev *, void *);
};
struct i40iw_puda_rsrc {
struct i40iw_sc_cq cq;
struct i40iw_sc_qp qp;
struct i40iw_sc_pd sc_pd;
struct i40iw_sc_dev *dev;
struct i40iw_dma_mem cqmem;
struct i40iw_dma_mem qpmem;
struct i40iw_virt_mem ilq_mem;
enum puda_rsrc_complete completion;
enum puda_resource_type type;
u16 buf_size; /*buffer must be max datalen + tcpip hdr + mac */
u16 mss;
u32 cq_id;
u32 qp_id;
u32 sq_size;
u32 rq_size;
u32 cq_size;
struct i40iw_sq_uk_wr_trk_info *sq_wrtrk_array;
u64 *rq_wrid_array;
u32 compl_rxwqe_idx;
u32 rx_wqe_idx;
u32 rxq_invalid_cnt;
u32 tx_wqe_avail_cnt;
bool check_crc;
struct shash_desc *hash_desc;
struct list_head txpend;
struct list_head bufpool; /* free buffers pool list for recv and xmit */
u32 alloc_buf_count;
u32 avail_buf_count; /* snapshot of currently available buffers */
spinlock_t bufpool_lock;
struct i40iw_puda_buf *alloclist;
void (*receive)(struct i40iw_sc_dev *, struct i40iw_puda_buf *);
void (*xmit_complete)(struct i40iw_sc_dev *, void *);
/* puda stats */
u64 stats_buf_alloc_fail;
u64 stats_pkt_rcvd;
u64 stats_pkt_sent;
u64 stats_rcvd_pkt_err;
u64 stats_sent_pkt_q;
u64 stats_bad_qp_id;
};
struct i40iw_puda_buf *i40iw_puda_get_bufpool(struct i40iw_puda_rsrc *rsrc);
void i40iw_puda_ret_bufpool(struct i40iw_puda_rsrc *rsrc,
struct i40iw_puda_buf *buf);
void i40iw_puda_send_buf(struct i40iw_puda_rsrc *rsrc,
struct i40iw_puda_buf *buf);
enum i40iw_status_code i40iw_puda_send(struct i40iw_sc_qp *qp,
struct i40iw_puda_send_info *info);
enum i40iw_status_code i40iw_puda_create_rsrc(struct i40iw_sc_dev *dev,
struct i40iw_puda_rsrc_info *info);
void i40iw_puda_dele_resources(struct i40iw_sc_dev *dev,
enum puda_resource_type type,
bool reset);
enum i40iw_status_code i40iw_puda_poll_completion(struct i40iw_sc_dev *dev,
struct i40iw_sc_cq *cq, u32 *compl_err);
void i40iw_ieq_cleanup_qp(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp);
struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev,
struct i40iw_puda_buf *buf);
enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info,
struct i40iw_puda_buf *buf);
enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc,
void *addr, u32 length, u32 value);
enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc);
void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp);
void i40iw_free_hash_desc(struct shash_desc *desc);
void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length,
u32 seqnum);
#endif
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