irdma_verbs.h

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    1 /*-
    2  * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
    3  *
    4  * Copyright (c) 2015 - 2022 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_VERBS_H
   37 #define IRDMA_VERBS_H
   38 
   39 #define IRDMA_MAX_SAVED_PHY_PGADDR      4
   40 #define IRDMA_FLUSH_DELAY_MS            20
   41 
   42 #define IRDMA_PKEY_TBL_SZ               1
   43 #define IRDMA_DEFAULT_PKEY              0xFFFF
   44 
   45 #define iwdev_to_idev(iwdev)    (&(iwdev)->rf->sc_dev)
   46 
   47 struct irdma_ucontext {
   48         struct ib_ucontext ibucontext;
   49         struct irdma_device *iwdev;
   50         struct rdma_user_mmap_entry *db_mmap_entry;
   51         struct list_head cq_reg_mem_list;
   52         spinlock_t cq_reg_mem_list_lock; /* protect CQ memory list */
   53         struct list_head qp_reg_mem_list;
   54         spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */
   55         /* FIXME: Move to kcompat ideally. Used < 4.20.0 for old diassasscoaite flow */
   56         struct list_head vma_list;
   57         struct mutex vma_list_mutex; /* protect the vma_list */
   58         int abi_ver;
   59         bool legacy_mode;
   60 };
   61 
   62 struct irdma_pd {
   63         struct ib_pd ibpd;
   64         struct irdma_sc_pd sc_pd;
   65 };
   66 
   67 struct irdma_av {
   68         u8 macaddr[16];
   69         struct ib_ah_attr attrs;
   70         union {
   71                 struct sockaddr saddr;
   72                 struct sockaddr_in saddr_in;
   73                 struct sockaddr_in6 saddr_in6;
   74         } sgid_addr, dgid_addr;
   75         u8 net_type;
   76 };
   77 
   78 struct irdma_ah {
   79         struct ib_ah ibah;
   80         struct irdma_sc_ah sc_ah;
   81         struct irdma_pd *pd;
   82         struct irdma_av av;
   83         u8 sgid_index;
   84         union ib_gid dgid;
   85 };
   86 
   87 struct irdma_hmc_pble {
   88         union {
   89                 u32 idx;
   90                 dma_addr_t addr;
   91         };
   92 };
   93 
   94 struct irdma_cq_mr {
   95         struct irdma_hmc_pble cq_pbl;
   96         dma_addr_t shadow;
   97         bool split;
   98 };
   99 
  100 struct irdma_qp_mr {
  101         struct irdma_hmc_pble sq_pbl;
  102         struct irdma_hmc_pble rq_pbl;
  103         dma_addr_t shadow;
  104         struct page *sq_page;
  105 };
  106 
  107 struct irdma_cq_buf {
  108         struct irdma_dma_mem kmem_buf;
  109         struct irdma_cq_uk cq_uk;
  110         struct irdma_hw *hw;
  111         struct list_head list;
  112         struct work_struct work;
  113 };
  114 
  115 struct irdma_pbl {
  116         struct list_head list;
  117         union {
  118                 struct irdma_qp_mr qp_mr;
  119                 struct irdma_cq_mr cq_mr;
  120         };
  121 
  122         bool pbl_allocated:1;
  123         bool on_list:1;
  124         u64 user_base;
  125         struct irdma_pble_alloc pble_alloc;
  126         struct irdma_mr *iwmr;
  127 };
  128 
  129 struct irdma_mr {
  130         union {
  131                 struct ib_mr ibmr;
  132                 struct ib_mw ibmw;
  133         };
  134         struct ib_umem *region;
  135         int access;
  136         u8 is_hwreg;
  137         u16 type;
  138         u32 page_cnt;
  139         u64 page_size;
  140         u64 page_msk;
  141         u32 npages;
  142         u32 stag;
  143         u64 len;
  144         u64 pgaddrmem[IRDMA_MAX_SAVED_PHY_PGADDR];
  145         struct irdma_pbl iwpbl;
  146 };
  147 
  148 struct irdma_cq {
  149         struct ib_cq ibcq;
  150         struct irdma_sc_cq sc_cq;
  151         u16 cq_head;
  152         u16 cq_size;
  153         u16 cq_num;
  154         bool user_mode;
  155         atomic_t armed;
  156         enum irdma_cmpl_notify last_notify;
  157         u32 polled_cmpls;
  158         u32 cq_mem_size;
  159         struct irdma_dma_mem kmem;
  160         struct irdma_dma_mem kmem_shadow;
  161         struct completion free_cq;
  162         atomic_t refcnt;
  163         spinlock_t lock; /* for poll cq */
  164         struct irdma_pbl *iwpbl;
  165         struct irdma_pbl *iwpbl_shadow;
  166         struct list_head resize_list;
  167         struct irdma_cq_poll_info cur_cqe;
  168         struct list_head cmpl_generated;
  169 };
  170 
  171 struct irdma_cmpl_gen {
  172         struct list_head list;
  173         struct irdma_cq_poll_info cpi;
  174 };
  175 
  176 struct disconn_work {
  177         struct work_struct work;
  178         struct irdma_qp *iwqp;
  179 };
  180 
  181 struct iw_cm_id;
  182 
  183 struct irdma_qp_kmode {
  184         struct irdma_dma_mem dma_mem;
  185         u32 *sig_trk_mem;
  186         struct irdma_sq_uk_wr_trk_info *sq_wrid_mem;
  187         u64 *rq_wrid_mem;
  188 };
  189 
  190 struct irdma_qp {
  191         struct ib_qp ibqp;
  192         struct irdma_sc_qp sc_qp;
  193         struct irdma_device *iwdev;
  194         struct irdma_cq *iwscq;
  195         struct irdma_cq *iwrcq;
  196         struct irdma_pd *iwpd;
  197         struct rdma_user_mmap_entry *push_wqe_mmap_entry;
  198         struct rdma_user_mmap_entry *push_db_mmap_entry;
  199         struct irdma_qp_host_ctx_info ctx_info;
  200         union {
  201                 struct irdma_iwarp_offload_info iwarp_info;
  202                 struct irdma_roce_offload_info roce_info;
  203         };
  204 
  205         union {
  206                 struct irdma_tcp_offload_info tcp_info;
  207                 struct irdma_udp_offload_info udp_info;
  208         };
  209 
  210         struct irdma_ah roce_ah;
  211         struct list_head teardown_entry;
  212         atomic_t refcnt;
  213         struct iw_cm_id *cm_id;
  214         struct irdma_cm_node *cm_node;
  215         struct delayed_work dwork_flush;
  216         struct ib_mr *lsmm_mr;
  217         atomic_t hw_mod_qp_pend;
  218         enum ib_qp_state ibqp_state;
  219         u32 qp_mem_size;
  220         u32 last_aeq;
  221         int max_send_wr;
  222         int max_recv_wr;
  223         atomic_t close_timer_started;
  224         spinlock_t lock; /* serialize posting WRs to SQ/RQ */
  225         struct irdma_qp_context *iwqp_context;
  226         void *pbl_vbase;
  227         dma_addr_t pbl_pbase;
  228         struct page *page;
  229         u8 iwarp_state;
  230         u16 term_sq_flush_code;
  231         u16 term_rq_flush_code;
  232         u8 hw_iwarp_state;
  233         u8 hw_tcp_state;
  234         struct irdma_qp_kmode kqp;
  235         struct irdma_dma_mem host_ctx;
  236         struct timer_list terminate_timer;
  237         struct irdma_pbl *iwpbl;
  238         struct irdma_sge *sg_list;
  239         struct irdma_dma_mem q2_ctx_mem;
  240         struct irdma_dma_mem ietf_mem;
  241         struct completion free_qp;
  242         wait_queue_head_t waitq;
  243         wait_queue_head_t mod_qp_waitq;
  244         u8 rts_ae_rcvd;
  245         u8 active_conn : 1;
  246         u8 user_mode : 1;
  247         u8 hte_added : 1;
  248         u8 flush_issued : 1;
  249         u8 sig_all : 1;
  250         u8 pau_mode : 1;
  251 };
  252 
  253 enum irdma_mmap_flag {
  254         IRDMA_MMAP_IO_NC,
  255         IRDMA_MMAP_IO_WC,
  256 };
  257 
  258 struct irdma_user_mmap_entry {
  259         struct rdma_user_mmap_entry rdma_entry;
  260         u64 bar_offset;
  261         u8 mmap_flag;
  262 };
  263 
  264 static inline u16 irdma_fw_major_ver(struct irdma_sc_dev *dev)
  265 {
  266         return (u16)FIELD_GET(IRDMA_FW_VER_MAJOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]);
  267 }
  268 
  269 static inline u16 irdma_fw_minor_ver(struct irdma_sc_dev *dev)
  270 {
  271         return (u16)FIELD_GET(IRDMA_FW_VER_MINOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]);
  272 }
  273 
  274 /**
  275  * irdma_mcast_mac_v4 - Get the multicast MAC for an IP address
  276  * @ip_addr: IPv4 address
  277  * @mac: pointer to result MAC address
  278  *
  279  */
  280 static inline void irdma_mcast_mac_v4(u32 *ip_addr, u8 *mac)
  281 {
  282         u8 *ip = (u8 *)ip_addr;
  283         unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, ip[2] & 0x7F, ip[1],
  284                                         ip[0]};
  285 
  286         ether_addr_copy(mac, mac4);
  287 }
  288 
  289 /**
  290  * irdma_mcast_mac_v6 - Get the multicast MAC for an IP address
  291  * @ip_addr: IPv6 address
  292  * @mac: pointer to result MAC address
  293  *
  294  */
  295 static inline void irdma_mcast_mac_v6(u32 *ip_addr, u8 *mac)
  296 {
  297         u8 *ip = (u8 *)ip_addr;
  298         unsigned char mac6[ETH_ALEN] = {0x33, 0x33, ip[3], ip[2], ip[1], ip[0]};
  299 
  300         ether_addr_copy(mac, mac6);
  301 }
  302 
  303 struct rdma_user_mmap_entry*
  304 irdma_user_mmap_entry_insert(struct irdma_ucontext *ucontext, u64 bar_offset,
  305                              enum irdma_mmap_flag mmap_flag, u64 *mmap_offset);
  306 int irdma_ib_register_device(struct irdma_device *iwdev);
  307 void irdma_ib_unregister_device(struct irdma_device *iwdev);
  308 void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event);
  309 void irdma_generate_flush_completions(struct irdma_qp *iwqp);
  310 void irdma_remove_cmpls_list(struct irdma_cq *iwcq);
  311 int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info);
  312 void irdma_sched_qp_flush_work(struct irdma_qp *iwqp);
  313 void irdma_flush_worker(struct work_struct *work);
  314 #endif /* IRDMA_VERBS_H */
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FreeBSD/Linux Kernel Cross Reference sys/dev/irdma/irdma_verbs.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/irdma/irdma_verbs.h
