dr_util.c revision 9853d9e82e7a067a2b88dae2fd257207e6be5f94
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * CDDL HEADER START
3e14f97f673e8a630f076077de35afdd43dc1587Roger A. Faulkner * The contents of this file are subject to the terms of the
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Common Development and Distribution License (the "License").
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * You may not use this file except in compliance with the License.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * See the License for the specific language governing permissions
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * and limitations under the License.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * When distributing Covered Code, include this CDDL HEADER in each
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * If applicable, add the following below this CDDL HEADER, with the
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da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * CDDL HEADER END
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Use is subject to license terms.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * sun4v DR Utility functions
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * The type argument is currently unused. However, it
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * keeps the interface flexible enough to allows for
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * only disabling certain types of DR.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * DR requires that the kernel is using its own CIF
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * handler. If that is not the case, either because
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * domaining has been explicitly disabled, or because
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * the firmware does not support it, the system must
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * remain static and DR must be disabled.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin cmn_err(CE_NOTE, "!Kernel CIF handler is not enabled, DR "
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin "is not available\n");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Generate a DR sysevent based on the type of resource and
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * sysevent hint specified. The hint indicates whether the
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * resource was added or removed.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin DR_DBG_ALL("generate_event: type=%s, hint=%s\n", DR_TYPE2STR(type),
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Add the attachment point attribute
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ev = sysevent_alloc(EC_DR, ESC_DR_AP_STATE_CHANGE, pubname, KM_SLEEP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin rv = sysevent_add_attr(&evnt_attr_list, DR_AP_ID, &evnt_val, KM_SLEEP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (rv != 0) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin DR_DBG_ALL("generate_event: failed to add attr '%s' for "
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Add the DR hint attribute
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin rv = sysevent_add_attr(&evnt_attr_list, DR_HINT, &evnt_val, KM_SLEEP);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (rv != 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin DR_DBG_ALL("generate_event: failed to add attr '%s' for "
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Attach the attribute list to the event
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (rv != 0) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin DR_DBG_ALL("generate_event: failed to add attr list for "
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Log the event
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (rv != 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin DR_DBG_ALL("generate_event: failed to log event (%d)\n", rv);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Debugging Features
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#define LINEWIDTH ((BYTESPERLINE * 3) + (BYTESPERLINE + 2) + 1)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Output a buffer formatted with a set number of bytes on
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * each line. Append each line with the ASCII equivalent of
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * each byte if it falls within the printable ASCII range,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * and '.' otherwise.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* abort if not debugging transport */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* walk the buffer one line at a time */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Walk the bytes in the current line, storing
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * the hex value for the byte as well as the
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * ASCII representation in a temporary buffer.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * All ASCII values are placed at the end of
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin for (j = 0; (j < BYTESPERLINE) && ((i + j) < len); j++) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin *aoff = (ISPRINT(msg[i + j])) ? msg[i + j] : '.';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Fill in to the start of the ASCII translation
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * with spaces. This will only be necessary if
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * this is the last line and there are not enough
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * bytes to fill the whole line.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif /* DEBUG */