puda.h

  1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
  2/* Copyright (c) 2015 - 2020 Intel Corporation */
  3#ifndef IRDMA_PUDA_H
  4#define IRDMA_PUDA_H
  5
  6#define IRDMA_IEQ_MPA_FRAMING	6
  7#define IRDMA_TCP_OFFSET	40
  8#define IRDMA_IPV4_PAD		20
  9#define IRDMA_MRK_BLK_SZ	512
 10
 11enum puda_rsrc_type {
 12	IRDMA_PUDA_RSRC_TYPE_ILQ = 1,
 13	IRDMA_PUDA_RSRC_TYPE_IEQ,
 14	IRDMA_PUDA_RSRC_TYPE_MAX, /* Must be last entry */
 15};
 16
 17enum puda_rsrc_complete {
 18	PUDA_CQ_CREATED = 1,
 19	PUDA_QP_CREATED,
 20	PUDA_TX_COMPLETE,
 21	PUDA_RX_COMPLETE,
 22	PUDA_HASH_CRC_COMPLETE,
 23};
 24
 25struct irdma_sc_dev;
 26struct irdma_sc_qp;
 27struct irdma_sc_cq;
 28
 29struct irdma_puda_cmpl_info {
 30	struct irdma_qp_uk *qp;
 31	u8 q_type;
 32	u8 l3proto;
 33	u8 l4proto;
 34	u16 vlan;
 35	u32 payload_len;
 36	u32 compl_error; /* No_err=0, else major and minor err code */
 37	u32 qp_id;
 38	u32 wqe_idx;
 39	bool ipv4:1;
 40	bool smac_valid:1;
 41	bool vlan_valid:1;
 42	u8 smac[ETH_ALEN];
 43};
 44
 45struct irdma_puda_send_info {
 46	u64 paddr; /* Physical address */
 47	u32 len;
 48	u32 ah_id;
 49	u8 tcplen;
 50	u8 maclen;
 51	bool ipv4:1;
 52	bool do_lpb:1;
 53	void *scratch;
 54};
 55
 56struct irdma_puda_buf {
 57	struct list_head list; /* MUST be first entry */
 58	struct irdma_dma_mem mem; /* DMA memory for the buffer */
 59	struct irdma_puda_buf *next; /* for alloclist in rsrc struct */
 60	struct irdma_virt_mem buf_mem; /* Buffer memory for this buffer */
 61	void *scratch;
 62	u8 *iph;
 63	u8 *tcph;
 64	u8 *data;
 65	u16 datalen;
 66	u16 vlan_id;
 67	u8 tcphlen; /* tcp length in bytes */
 68	u8 maclen; /* mac length in bytes */
 69	u32 totallen; /* machlen+iphlen+tcphlen+datalen */
 70	refcount_t refcount;
 71	u8 hdrlen;
 72	bool ipv4:1;
 73	bool vlan_valid:1;
 74	bool do_lpb:1; /* Loopback buffer */
 75	bool smac_valid:1;
 76	u32 seqnum;
 77	u32 ah_id;
 78	u8 smac[ETH_ALEN];
 79	struct irdma_sc_vsi *vsi;
 80};
 81
 82struct irdma_puda_rsrc_info {
 83	void (*receive)(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *buf);
 84	void (*xmit_complete)(struct irdma_sc_vsi *vsi, void *sqwrid);
 85	enum puda_rsrc_type type; /* ILQ or IEQ */
 86	u32 count;
 87	u32 pd_id;
 88	u32 cq_id;
 89	u32 qp_id;
 90	u32 sq_size;
 91	u32 rq_size;
 92	u32 tx_buf_cnt; /* total bufs allocated will be rq_size + tx_buf_cnt */
 93	u16 buf_size;
 94	u16 stats_idx;
 95	bool stats_idx_valid:1;
 96	int abi_ver;
 97};
 98
 99struct irdma_puda_rsrc {
100	struct irdma_sc_cq cq;
101	struct irdma_sc_qp qp;
102	struct irdma_sc_pd sc_pd;
103	struct irdma_sc_dev *dev;
104	struct irdma_sc_vsi *vsi;
105	struct irdma_dma_mem cqmem;
106	struct irdma_dma_mem qpmem;
107	struct irdma_virt_mem ilq_mem;
108	enum puda_rsrc_complete cmpl;
109	enum puda_rsrc_type type;
110	u16 buf_size; /*buf must be max datalen + tcpip hdr + mac */
111	u32 cq_id;
112	u32 qp_id;
113	u32 sq_size;
114	u32 rq_size;
115	u32 cq_size;
116	struct irdma_sq_uk_wr_trk_info *sq_wrtrk_array;
117	u64 *rq_wrid_array;
118	u32 compl_rxwqe_idx;
119	u32 rx_wqe_idx;
120	u32 rxq_invalid_cnt;
121	u32 tx_wqe_avail_cnt;
122	struct list_head txpend;
123	struct list_head bufpool; /* free buffers pool list for recv and xmit */
124	u32 alloc_buf_count;
125	u32 avail_buf_count; /* snapshot of currently available buffers */
126	spinlock_t bufpool_lock;
127	struct irdma_puda_buf *alloclist;
128	void (*receive)(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *buf);
129	void (*xmit_complete)(struct irdma_sc_vsi *vsi, void *sqwrid);
130	/* puda stats */
131	u64 stats_buf_alloc_fail;
132	u64 stats_pkt_rcvd;
133	u64 stats_pkt_sent;
134	u64 stats_rcvd_pkt_err;
135	u64 stats_sent_pkt_q;
136	u64 stats_bad_qp_id;
137	/* IEQ stats */
138	u64 fpdu_processed;
139	u64 bad_seq_num;
140	u64 crc_err;
141	u64 pmode_count;
142	u64 partials_handled;
143	u16 stats_idx;
144	bool check_crc:1;
145	bool stats_idx_valid:1;
146};
147
148struct irdma_puda_buf *irdma_puda_get_bufpool(struct irdma_puda_rsrc *rsrc);
149void irdma_puda_ret_bufpool(struct irdma_puda_rsrc *rsrc,
150			    struct irdma_puda_buf *buf);
151void irdma_puda_send_buf(struct irdma_puda_rsrc *rsrc,
152			 struct irdma_puda_buf *buf);
153int irdma_puda_send(struct irdma_sc_qp *qp, struct irdma_puda_send_info *info);
154int irdma_puda_create_rsrc(struct irdma_sc_vsi *vsi,
155			   struct irdma_puda_rsrc_info *info);
156void irdma_puda_dele_rsrc(struct irdma_sc_vsi *vsi, enum puda_rsrc_type type,
157			  bool reset);
158int irdma_puda_poll_cmpl(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq,
159			 u32 *compl_err);
160
161struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
162				     struct irdma_puda_buf *buf);
163int irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
164			      struct irdma_puda_buf *buf);
165int irdma_ieq_check_mpacrc(const void *addr, u32 len, u32 val);
166void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp);
167void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len, u32 seqnum);
168int irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp);
169int irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq);
170int irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp);
171void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq);
172void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
173				struct irdma_ah_info *ah_info);
174int irdma_puda_create_ah(struct irdma_sc_dev *dev,
175			 struct irdma_ah_info *ah_info, bool wait,
176			 enum puda_rsrc_type type, void *cb_param,
177			 struct irdma_sc_ah **ah);
178void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah);
179void irdma_ieq_process_fpdus(struct irdma_sc_qp *qp,
180			     struct irdma_puda_rsrc *ieq);
181void irdma_ieq_cleanup_qp(struct irdma_puda_rsrc *ieq, struct irdma_sc_qp *qp);
182#endif /*IRDMA_PROTOS_H */