/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2007, The Ohio State University. All rights reserved. * * Portions of this source code is developed by the team members of * The Ohio State University's Network-Based Computing Laboratory (NBCL), * headed by Professor Dhabaleswar K. (DK) Panda. * * Acknowledgements to contributions from developors: * Ranjit Noronha: noronha@cse.ohio-state.edu * Lei Chai : chail@cse.ohio-state.edu * Weikuan Yu : yuw@cse.ohio-state.edu * */ #ifndef _IB_H #define _IB_H /* * ib.h, rpcib plugin interface. */ #include #include #include #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif #define MAX_BUFS 1024 /* max no. of buffers per pool */ #define DEF_CQ_SIZE 4096 - 1 /* default CQ size */ /* * Tavor returns the next higher power of 2 * CQ entries than the requested size. * For instance, if you request (2^12 - 1) * CQ entries, Tavor returns 2^12 entries. * 4K CQ entries suffice. Hence, 4096 - 1. */ #define DEF_SQ_SIZE 128 /* default SendQ size */ #define DEF_RQ_SIZE 256 /* default RecvQ size */ #define DSEG_MAX 2 #define RQ_DSEG_MAX 1 /* default RQ data seg */ #define IBSRM_HB 0x8000 /* high order bit of pkey */ /* max no. of refresh attempts on IBT_CM_CONN_STALE error */ #define REFRESH_ATTEMPTS 3 typedef struct rib_hca_s rib_hca_t; typedef struct rib_qp_s rib_qp_t; typedef struct rib_cq_s rib_cq_t; /* * Notification for RDMA_DONE is based on xid */ struct rdma_done_list { uint32_t xid; /* XID waiting for RDMA_DONE */ kcondvar_t rdma_done_cv; /* cv for RDMA_DONE */ struct rdma_done_list *next; struct rdma_done_list *prev; }; /* * State of the plugin. * ACCEPT = accepting new connections and requests * NO_ACCEPT = not accepting new connection and requests */ #define ACCEPT 1 #define NO_ACCEPT 2 /* * Send Wait states */ #define SEND_WAIT -1 /* * Reply states */ #define REPLY_WAIT -1 typedef void * rib_pvoid; typedef rib_pvoid RIB_SYNCMEM_HANDLE; /* * IB buffer pool management structure */ /* * Buffer pool info */ typedef struct { kmutex_t buflock; /* lock for this structure */ caddr_t buf; /* pool address */ uint32_t bufhandle; /* rkey for this pool */ ulong_t bufsize; /* size of pool */ int rsize; /* size of each element */ int numelems; /* no. of elements allocated */ int buffree; /* no. of free elements */ void *buflist[1]; /* free elements in pool */ } bufpool_t; typedef struct { bufpool_t *bpool; ibt_mr_hdl_t *mr_hdl; ibt_mr_desc_t *mr_desc; /* vaddr, lkey, rkey */ } rib_bufpool_t; /* * ATS relsted defines and structures. */ #define ATS_AR_DATA_LEN 16 #define IBD_NAME "ibd" #define N_IBD_INSTANCES 4 /* * Service types supported by RPCIB * For now only NFS is supported. */ #define NFS 1 #define NLM 2 /* * Tracks consumer state (client or server). */ typedef enum { RIB_SERVER, RIB_CLIENT } rib_mode_t; /* * CQ structure */ struct rib_cq_s { rib_hca_t *rib_hca; ibt_cq_hdl_t rib_cq_hdl; }; /* * RPCIB plugin state */ typedef struct rpcib_state { ibt_clnt_hdl_t ibt_clnt_hdl; uint32_t hca_count; uint32_t nhca_inited; ib_guid_t *hca_guids; rib_hca_t *hcas; int refcount; kmutex_t open_hca_lock; rib_hca_t *hca; /* the hca being used */ queue_t *q; /* up queue for a serv_type */ uint32_t service_type; /* NFS, NLM, etc */ void *private; } rpcib_state_t; /* * Each registered service's data structure. * Each HCA has a list of these structures, which are the registered * services on this HCA. */ typedef struct rib_service rib_service_t; struct rib_service { uint32_t srv_type; /* i.e, NFS, NLM, v4CBD */ ibt_srv_hdl_t srv_hdl; /* from ibt_register call */ rib_service_t *srv_next; }; /* * Connection lists */ typedef struct { krwlock_t conn_lock; /* list lock */ CONN *conn_hd; /* list head */ } rib_conn_list_t; enum hca_state { HCA_DETACHED, /* hca in detached state */ HCA_INITED, /* hca in up and running state */ }; /* * RPCIB per HCA structure */ struct rib_hca_s { ibt_clnt_hdl_t ibt_clnt_hdl; /* * per HCA. */ ibt_hca_hdl_t hca_hdl; /* HCA handle */ ibt_hca_attr_t hca_attrs; /* HCA attributes */ ibt_pd_hdl_t pd_hdl; ib_guid_t hca_guid; uint32_t hca_nports; ibt_hca_portinfo_t *hca_ports; size_t hca_pinfosz; enum hca_state state; /* state of HCA */ krwlock_t state_lock; /* protects state field */ bool_t inuse; /* indicates HCA usage */ kmutex_t inuse_lock; /* protects inuse field */ /* * List of services registered on all ports available * on this HCA. Only one consumer of KRPC can register * its services at one time or tear them down at one * time. */ rib_service_t *service_list; krwlock_t service_list_lock; rib_conn_list_t cl_conn_list; /* client conn list */ rib_conn_list_t srv_conn_list; /* server conn list */ rib_cq_t *clnt_scq; rib_cq_t *clnt_rcq; rib_cq_t *svc_scq; rib_cq_t *svc_rcq; kmutex_t cb_lock; kcondvar_t cb_cv; rib_bufpool_t *recv_pool; /* recv buf pool */ rib_bufpool_t *send_pool; /* send buf pool */ void *iblock; /* interrupt cookie */ kmem_cache_t *server_side_cache; /* long reply pool */ avl_tree_t avl_tree; kmutex_t avl_lock; krwlock_t avl_rw_lock; volatile bool_t avl_init; kmutex_t cache_allocation; ddi_taskq_t *reg_cache_clean_up; ib_svc_id_t srv_id; ibt_srv_hdl_t srv_hdl; uint_t reg_state; }; /* * Structure on wait state of a post send */ struct send_wid { uint32_t xid; int cv_sig; kmutex_t sendwait_lock; kcondvar_t wait_cv; uint_t status; rib_qp_t *qp; int nsbufs; /* # of send buffers posted */ uint64_t sbufaddr[DSEG_MAX]; /* posted send buffers */ caddr_t c; caddr_t c1; int l1; caddr_t c2; int l2; int wl, rl; }; /* * Structure on reply descriptor for recv queue. * Different from the above posting of a descriptor. */ struct reply { uint32_t xid; uint_t status; uint64_t vaddr_cq; /* buf addr from CQ */ uint_t bytes_xfer; kcondvar_t wait_cv; struct reply *next; struct reply *prev; }; struct svc_recv { rib_qp_t *qp; uint64_t vaddr; uint_t bytes_xfer; }; struct recv_wid { uint32_t xid; rib_qp_t *qp; uint64_t addr; /* posted buf addr */ }; /* * Per QP data structure */ struct rib_qp_s { rib_hca_t *hca; rib_mode_t mode; /* RIB_SERVER or RIB_CLIENT */ CONN rdmaconn; ibt_channel_hdl_t qp_hdl; uint_t port_num; ib_qpn_t qpn; int chan_flags; clock_t timeout; ibt_rc_chan_query_attr_t qp_q_attrs; rib_cq_t *send_cq; /* send CQ */ rib_cq_t *recv_cq; /* recv CQ */ /* * Number of pre-posted rbufs */ uint_t n_posted_rbufs; kcondvar_t posted_rbufs_cv; kmutex_t posted_rbufs_lock; /* * RPC reply */ uint_t rep_list_size; struct reply *replylist; kmutex_t replylist_lock; /* * server only, RDMA_DONE */ struct rdma_done_list *rdlist; kmutex_t rdlist_lock; kmutex_t cb_lock; kcondvar_t cb_conn_cv; caddr_t q; /* upstream queue */ struct send_wid wd; }; #define ctoqp(conn) ((rib_qp_t *)((conn)->c_private)) #define qptoc(rqp) ((CONN *)&((rqp)->rdmaconn)) /* * Timeout for various calls */ #define CONN_WAIT_TIME 40 #define SEND_WAIT_TIME 40 /* time for send completion */ #define REPLY_WAIT_TIME 40 /* time to get reply from remote QP */ #ifdef __cplusplus } #endif #endif /* !_IB_H */