The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/irdma/irdma_puda.h

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    1 /*-
    2  * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
    3  *
    4  * Copyright (c) 2015 - 2021 Intel Corporation
    5  *
    6  * This software is available to you under a choice of one of two
    7  * licenses.  You may choose to be licensed under the terms of the GNU
    8  * General Public License (GPL) Version 2, available from the file
    9  * COPYING in the main directory of this source tree, or the
   10  * OpenFabrics.org BSD license below:
   11  *
   12  *   Redistribution and use in source and binary forms, with or
   13  *   without modification, are permitted provided that the following
   14  *   conditions are met:
   15  *
   16  *    - Redistributions of source code must retain the above
   17  *      copyright notice, this list of conditions and the following
   18  *      disclaimer.
   19  *
   20  *    - Redistributions in binary form must reproduce the above
   21  *      copyright notice, this list of conditions and the following
   22  *      disclaimer in the documentation and/or other materials
   23  *      provided with the distribution.
   24  *
   25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   32  * SOFTWARE.
   33  */
   34 /*$FreeBSD$*/
   35 
   36 #ifndef IRDMA_PUDA_H
   37 #define IRDMA_PUDA_H
   38 
   39 #define IRDMA_IEQ_MPA_FRAMING   6
   40 #define IRDMA_TCP_OFFSET        40
   41 #define IRDMA_IPV4_PAD          20
   42 #define IRDMA_MRK_BLK_SZ        512
   43 
   44 enum puda_rsrc_type {
   45         IRDMA_PUDA_RSRC_TYPE_ILQ = 1,
   46         IRDMA_PUDA_RSRC_TYPE_IEQ,
   47         IRDMA_PUDA_RSRC_TYPE_MAX, /* Must be last entry */
   48 };
   49 
   50 enum puda_rsrc_complete {
   51         PUDA_CQ_CREATED = 1,
   52         PUDA_QP_CREATED,
   53         PUDA_TX_COMPLETE,
   54         PUDA_RX_COMPLETE,
   55         PUDA_HASH_CRC_COMPLETE,
   56 };
   57 
   58 struct irdma_sc_dev;
   59 struct irdma_sc_qp;
   60 struct irdma_sc_cq;
   61 
   62 struct irdma_puda_cmpl_info {
   63         struct irdma_qp_uk *qp;
   64         u8 q_type;
   65         u8 l3proto;
   66         u8 l4proto;
   67         u16 vlan;
   68         u32 payload_len;
   69         u32 compl_error; /* No_err=0, else major and minor err code */
   70         u32 qp_id;
   71         u32 wqe_idx;
   72         bool ipv4:1;
   73         bool smac_valid:1;
   74         bool vlan_valid:1;
   75         u8 smac[ETH_ALEN];
   76 };
   77 
   78 struct irdma_puda_send_info {
   79         u64 paddr; /* Physical address */
   80         u32 len;
   81         u32 ah_id;
   82         u8 tcplen;
   83         u8 maclen;
   84         bool ipv4:1;
   85         bool do_lpb:1;
   86         void *scratch;
   87 };
   88 
   89 struct irdma_puda_buf {
   90         struct list_head list; /* MUST be first entry */
   91         struct irdma_dma_mem mem; /* DMA memory for the buffer */
   92         struct irdma_puda_buf *next; /* for alloclist in rsrc struct */
   93         struct irdma_virt_mem buf_mem; /* Buffer memory for this buffer */
   94         void *scratch;
   95         u8 *iph;
   96         u8 *tcph;
   97         u8 *data;
   98         u16 datalen;
   99         u16 vlan_id;
  100         u8 tcphlen; /* tcp length in bytes */
  101         u8 maclen; /* mac length in bytes */
  102         u32 totallen; /* machlen+iphlen+tcphlen+datalen */
  103         atomic_t refcount;
  104         u8 hdrlen;
  105         bool virtdma:1;
  106         bool ipv4:1;
  107         bool vlan_valid:1;
  108         bool do_lpb:1; /* Loopback buffer */
  109         bool smac_valid:1;
  110         u32 seqnum;
  111         u32 ah_id;
  112         u8 smac[ETH_ALEN];
  113         struct irdma_sc_vsi *vsi;
  114 };
  115 
  116 struct irdma_puda_rsrc_info {
  117         void (*receive)(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *buf);
  118         void (*xmit_complete)(struct irdma_sc_vsi *vsi, void *sqwrid);
  119         enum puda_rsrc_type type; /* ILQ or IEQ */
  120         u32 count;
  121         u32 pd_id;
  122         u32 cq_id;
  123         u32 qp_id;
  124         u32 sq_size;
  125         u32 rq_size;
  126         u32 tx_buf_cnt; /* total bufs allocated will be rq_size + tx_buf_cnt */
  127         u16 buf_size;
  128         u16 mss; /* FIXME: Windows driver still using this */
  129         u8 stats_idx;
  130         bool stats_idx_valid:1;
  131         int abi_ver;
  132 };
  133 
  134 struct irdma_puda_rsrc {
  135         struct irdma_sc_cq cq;
  136         struct irdma_sc_qp qp;
  137         struct irdma_sc_pd sc_pd;
  138         struct irdma_sc_dev *dev;
  139         struct irdma_sc_vsi *vsi;
  140         struct irdma_dma_mem cqmem;
  141         struct irdma_dma_mem qpmem;
  142         struct irdma_virt_mem ilq_mem;
  143         enum puda_rsrc_complete cmpl;
  144         enum puda_rsrc_type type;
  145         u16 buf_size; /*buf must be max datalen + tcpip hdr + mac */
  146         u32 cq_id;
  147         u32 qp_id;
  148         u32 sq_size;
  149         u32 rq_size;
  150         u32 cq_size;
  151         struct irdma_sq_uk_wr_trk_info *sq_wrtrk_array;
  152         u64 *rq_wrid_array;
  153         u32 compl_rxwqe_idx;
  154         u32 rx_wqe_idx;
  155         u32 rxq_invalid_cnt;
  156         u32 tx_wqe_avail_cnt;
  157         void *hash_desc;
  158         struct list_head txpend;
  159         struct list_head bufpool; /* free buffers pool list for recv and xmit */
  160         u32 alloc_buf_count;
  161         u32 avail_buf_count; /* snapshot of currently available buffers */
  162         spinlock_t bufpool_lock;
  163         struct irdma_puda_buf *alloclist;
  164         void (*receive)(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *buf);
  165         void (*xmit_complete)(struct irdma_sc_vsi *vsi, void *sqwrid);
  166         /* puda stats */
  167         u64 stats_buf_alloc_fail;
  168         u64 stats_pkt_rcvd;
  169         u64 stats_pkt_sent;
  170         u64 stats_rcvd_pkt_err;
  171         u64 stats_sent_pkt_q;
  172         u64 stats_bad_qp_id;
  173         /* IEQ stats */
  174         u64 fpdu_processed;
  175         u64 bad_seq_num;
  176         u64 crc_err;
  177         u64 pmode_count;
  178         u64 partials_handled;
  179         u16 mss; /* FIXME: Windows driver still using this */
  180         u8 stats_idx;
  181         bool check_crc:1;
  182         bool stats_idx_valid:1;
  183 };
  184 
  185 struct irdma_puda_buf *irdma_puda_get_bufpool(struct irdma_puda_rsrc *rsrc);
  186 void irdma_puda_ret_bufpool(struct irdma_puda_rsrc *rsrc,
  187                             struct irdma_puda_buf *buf);
  188 void irdma_puda_send_buf(struct irdma_puda_rsrc *rsrc,
  189                          struct irdma_puda_buf *buf);
  190 int irdma_puda_send(struct irdma_sc_qp *qp, struct irdma_puda_send_info *info);
  191 int irdma_puda_create_rsrc(struct irdma_sc_vsi *vsi,
  192                            struct irdma_puda_rsrc_info *info);
  193 void irdma_puda_dele_rsrc(struct irdma_sc_vsi *vsi, enum puda_rsrc_type type,
  194                           bool reset);
  195 int irdma_puda_poll_cmpl(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq,
  196                          u32 *compl_err);
  197 
  198 struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
  199                                      struct irdma_puda_buf *buf);
  200 int irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
  201                               struct irdma_puda_buf *buf);
  202 int irdma_ieq_check_mpacrc(void *desc, void *addr, u32 len, u32 val);
  203 int irdma_init_hash_desc(void **desc);
  204 void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp);
  205 void irdma_free_hash_desc(void *desc);
  206 void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len, u32 seqnum);
  207 int irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp);
  208 int irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq);
  209 int irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp);
  210 void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq);
  211 void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
  212                                 struct irdma_ah_info *ah_info);
  213 int irdma_puda_create_ah(struct irdma_sc_dev *dev,
  214                          struct irdma_ah_info *ah_info, bool wait,
  215                          enum puda_rsrc_type type, void *cb_param,
  216                          struct irdma_sc_ah **ah);
  217 void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah);
  218 void irdma_ieq_process_fpdus(struct irdma_sc_qp *qp,
  219                              struct irdma_puda_rsrc *ieq);
  220 void irdma_ieq_cleanup_qp(struct irdma_puda_rsrc *ieq, struct irdma_sc_qp *qp);
  221 #endif /*IRDMA_PROTOS_H */

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