/* * 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. */ #ifndef _SYS_IB_ADAPTERS_HERMON_SRQ_H #define _SYS_IB_ADAPTERS_HERMON_SRQ_H /* * hermon_srq.h * Contains all of the prototypes, #defines, and structures necessary * for the Shared Receive Queue Processing routines. * * (including those routines directly exposed through the IBTF CI * interface). */ #include <sys/types.h> #include <sys/conf.h> #include <sys/ddi.h> #include <sys/sunddi.h> #ifdef __cplusplus extern "C" { #endif /* * The following defines the default number of Shared Receive Queues (SRQ). * This value is controllable via the "hermon_log_num_srq" configuration * variable. * We also have a define for the minimum size of a SRQ. SRQs allocated with * size 0, 1, 2, or 3 will always get back a SRQ of size 4. */ #define HERMON_NUM_SRQ_SHIFT 0x10 #define HERMON_SRQ_MIN_SIZE 0x4 /* * The hermon firmware currently limits an SRQ to maximum of 31 SGL * per WQE (WQE size is 512 bytes or less). With a WQE size of 256 * (SGL 15 or less) no problems are seen. We set SRQ_MAX_SGL size here, for * use in the config profile to be 0xF. */ #define HERMON_SRQ_MAX_SGL 0xF /* * SRQ States as defined by Hermon. */ #define HERMON_SRQ_STATE_SW_OWNER 0xF #define HERMON_SRQ_STATE_HW_OWNER 0x0 #define HERMON_SRQ_STATE_ERROR 0x1 /* * The hermon_sw_srq_s structure is also referred to using the "hermon_srqhdl_t" * typedef (see hermon_typedef.h). It encodes all the information necessary * to track the various resources needed to allocate, initialize, query, modify, * post, and (later) free a shared receive queue (SRQ). */ struct hermon_sw_srq_s { kmutex_t srq_lock; uint_t srq_state; uint_t srq_srqnum; hermon_pdhdl_t srq_pdhdl; hermon_mrhdl_t srq_mrhdl; uint_t srq_is_umap; uint32_t srq_uarpg; devmap_cookie_t srq_umap_dhp; ibt_srq_sizes_t srq_real_sizes; hermon_rsrc_t *srq_srqcrsrcp; hermon_rsrc_t *srq_rsrcp; void *srq_hdlrarg; uint_t srq_refcnt; /* Work Queue */ hermon_workq_hdr_t *srq_wq_wqhdr; uint32_t *srq_wq_buf; uint32_t srq_wq_bufsz; uint32_t srq_wq_log_wqesz; uint32_t srq_wq_sgl; uint32_t srq_wq_wqecntr; /* DoorBell Record information */ ddi_acc_handle_t srq_wq_dbr_acchdl; hermon_dbr_t *srq_wq_vdbr; uint64_t srq_wq_pdbr; uint64_t srq_rdbr_mapoffset; /* user mode access */ /* For zero-based */ uint64_t srq_desc_off; /* Queue Memory for SRQ */ struct hermon_qalloc_info_s srq_wqinfo; }; _NOTE(READ_ONLY_DATA(hermon_sw_srq_s::srq_pdhdl hermon_sw_srq_s::srq_mrhdl hermon_sw_srq_s::srq_srqnum hermon_sw_srq_s::srq_wq_sgl hermon_sw_srq_s::srq_srqcrsrcp hermon_sw_srq_s::srq_rsrcp hermon_sw_srq_s::srq_hdlrarg hermon_sw_srq_s::srq_is_umap hermon_sw_srq_s::srq_uarpg)) _NOTE(DATA_READABLE_WITHOUT_LOCK(hermon_sw_srq_s::srq_wq_bufsz hermon_sw_srq_s::srq_wqinfo hermon_sw_srq_s::srq_wq_buf hermon_sw_srq_s::srq_wq_wqhdr hermon_sw_srq_s::srq_desc_off)) _NOTE(MUTEX_PROTECTS_DATA(hermon_sw_srq_s::srq_lock, hermon_sw_srq_s::srq_real_sizes hermon_sw_srq_s::srq_umap_dhp)) /* * The hermon_srq_info_t structure is used internally by the Hermon driver to * pass information to and from the hermon_srq_alloc() routine. It contains * placeholders for all of the potential inputs and outputs that this routine * can take. */ typedef struct hermon_srq_info_s { hermon_pdhdl_t srqi_pd; ibt_srq_hdl_t srqi_ibt_srqhdl; ibt_srq_sizes_t *srqi_sizes; ibt_srq_sizes_t *srqi_real_sizes; hermon_srqhdl_t *srqi_srqhdl; uint_t srqi_flags; } hermon_srq_info_t; /* * The hermon_srq_options_t structure is used in the Hermon SRQ allocation * routines to provide additional option functionality. When a NULL pointer * is passed in place of a pointer to this struct, it is a way of specifying * the "default" behavior. Using this structure, however, is a way of * controlling any extended behavior. */ typedef struct hermon_srq_options_s { uint_t srqo_wq_loc; } hermon_srq_options_t; /* * old call * int hermon_srq_alloc(hermon_state_t *state, hermon_srq_info_t *srqinfo, * uint_t sleepflag, hermon_srq_options_t *op); */ int hermon_srq_alloc(hermon_state_t *state, hermon_srq_info_t *srqinfo, uint_t sleepflag); int hermon_srq_free(hermon_state_t *state, hermon_srqhdl_t *srqhdl, uint_t sleepflag); int hermon_srq_modify(hermon_state_t *state, hermon_srqhdl_t srq, uint_t size, uint_t *real_size, uint_t sleepflag); int hermon_srq_post(hermon_state_t *state, hermon_srqhdl_t srq, ibt_recv_wr_t *wr_p, uint_t num_wr, uint_t *num_posted); void hermon_srq_refcnt_inc(hermon_srqhdl_t srq); void hermon_srq_refcnt_dec(hermon_srqhdl_t srq); hermon_srqhdl_t hermon_srqhdl_from_srqnum(hermon_state_t *state, uint_t srqnum); #ifdef __cplusplus } #endif #endif /* _SYS_IB_ADAPTERS_HERMON_SRQ_H */
