1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved. 24 */ 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* 32 * 33 * MODULE: dapl_evd_qp_async_error_callback.c 34 * 35 * PURPOSE: implements QP callbacks from verbs 36 * 37 * $Id: dapl_evd_qp_async_error_callb.c,v 1.17 2003/07/31 13:55:18 hobie16 Exp $ 38 */ 39 40 #include "dapl.h" 41 #include "dapl_evd_util.h" 42 #include "dapl_adapter_util.h" 43 44 /* 45 * dapl_evd_qp_async_error_callback 46 * 47 * The callback function registered with verbs for qp async erros 48 * 49 * Input: 50 * ib_cm_handle, 51 * ib_cm_event 52 * cause_ptr 53 * context (evd) 54 * 55 * Output: 56 * None 57 * 58 */ 59 60 void 61 dapl_evd_qp_async_error_callback( 62 IN ib_hca_handle_t ib_hca_handle, 63 IN ib_qp_handle_t ib_qp_handle, 64 IN ib_error_record_t *cause_ptr, 65 IN void *context) /* ARGSUSED */ 66 67 { 68 /* 69 * This is an affiliated error and hence should be able to 70 * supply us with exact information on the error type and QP. 71 * 72 * However the Mellanox and IBM APIs for registering this callback 73 * are different. 74 * 75 * The IBM API allows consumers to register the callback with 76 * 77 * ib_int32_t 78 * ib_set_qp_async_error_eh_us ( 79 * ib_hca_handle_t hca_handle, 80 * ib_qp_async_handler_t handler ) 81 * 82 * Notice that this function does not take a context. The context is 83 * specified per QP in the call to ib_qp_create_us(). 84 * 85 * In contrast the Mellanox API requires that the context be specified 86 * when the funciton is registered: 87 * 88 * VAPI_ret_t 89 * VAPI_set_async_event_handler ( 90 * IN VAPI_hca_hndl_t hca_hndl, 91 * IN VAPI_async_event_handler_t handler, 92 * IN void* private_data ) 93 * 94 * Therefore we always specify the context as the asyncronous EVD 95 * to be compatible with both APIs. 96 */ 97 98 DAPL_IA *ia_ptr; 99 DAPL_EP *ep_ptr; 100 DAPL_EVD *async_evd; 101 DAT_EVENT_NUMBER async_event; 102 DAT_RETURN dat_status; 103 104 ep_ptr = (DAPL_EP *) context; 105 ia_ptr = ep_ptr->header.owner_ia; 106 async_evd = (DAPL_EVD *) ia_ptr->async_error_evd; 107 108 dapl_dbg_log(DAPL_DBG_TYPE_CALLBACK | DAPL_DBG_TYPE_EXCEPTION, 109 "--> dapl_evd_qp_async_error_callback: ep %p qp %p (%x) state %d\n", 110 ep_ptr, 111 ep_ptr->qp_handle, 112 ep_ptr->qpn, 113 ep_ptr->param.ep_state); 114 115 /* 116 * Transition to ERROR if we are connected; other states need to 117 * complete first (e.g. pending states) 118 */ 119 if (ep_ptr->param.ep_state == DAT_EP_STATE_CONNECTED) { 120 ep_ptr->param.ep_state = DAT_EP_STATE_ERROR; 121 } 122 123 dapl_os_assert(async_evd != NULL); 124 125 dat_status = dapls_ib_get_async_event(cause_ptr, &async_event); 126 if (dat_status == DAT_SUCCESS) { 127 /* 128 * If dapls_ib_get_async_event is not successful, 129 * an event has been generated by the provide that 130 * we are not interested in. 131 */ 132 (void) dapls_evd_post_async_error_event(async_evd, 133 async_event, 134 async_evd->header.owner_ia); 135 } 136 dapl_dbg_log(DAPL_DBG_TYPE_CALLBACK | DAPL_DBG_TYPE_EXCEPTION, 137 "dapl_evd_qp_async_error_callback () returns\n"); 138 } 139 140 /* 141 * Local variables: 142 * c-indent-level: 4 143 * c-basic-offset: 4 144 * tab-width: 8 145 * End: 146 */ 147