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 */
183

source code of linux/drivers/infiniband/hw/irdma/puda.h