1524 lines
44 KiB
C
1524 lines
44 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2007-2009 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/idr.h>
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#include <linux/interrupt.h>
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#include <linux/kthread.h>
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#include <linux/pci.h>
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#include <linux/spinlock.h>
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#include <linux/ctype.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
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#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
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#include "lpfc_scsi.h"
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#include "lpfc.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#include "lpfc_version.h"
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#include "lpfc_compat.h"
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#include "lpfc_debugfs.h"
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#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
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/*
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* debugfs interface
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*
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* To access this interface the user should:
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* # mount -t debugfs none /sys/kernel/debug
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*
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* The lpfc debugfs directory hierarchy is:
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* lpfc/lpfcX/vportY
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* where X is the lpfc hba unique_id
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* where Y is the vport VPI on that hba
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*
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* Debugging services available per vport:
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* discovery_trace
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* This is an ACSII readable file that contains a trace of the last
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* lpfc_debugfs_max_disc_trc events that happened on a specific vport.
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* See lpfc_debugfs.h for different categories of discovery events.
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* To enable the discovery trace, the following module parameters must be set:
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* lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
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* lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
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* EACH vport. X MUST also be a power of 2.
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* lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
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* lpfc_debugfs.h .
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*
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* slow_ring_trace
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* This is an ACSII readable file that contains a trace of the last
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* lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
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* To enable the slow ring trace, the following module parameters must be set:
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* lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
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* lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
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* the HBA. X MUST also be a power of 2.
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*/
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static int lpfc_debugfs_enable = 1;
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module_param(lpfc_debugfs_enable, int, 0);
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MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
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/* This MUST be a power of 2 */
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static int lpfc_debugfs_max_disc_trc;
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module_param(lpfc_debugfs_max_disc_trc, int, 0);
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MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
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"Set debugfs discovery trace depth");
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/* This MUST be a power of 2 */
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static int lpfc_debugfs_max_slow_ring_trc;
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module_param(lpfc_debugfs_max_slow_ring_trc, int, 0);
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MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
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"Set debugfs slow ring trace depth");
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static int lpfc_debugfs_mask_disc_trc;
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module_param(lpfc_debugfs_mask_disc_trc, int, 0);
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MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
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"Set debugfs discovery trace mask");
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#include <linux/debugfs.h>
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/* size of output line, for discovery_trace and slow_ring_trace */
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#define LPFC_DEBUG_TRC_ENTRY_SIZE 100
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/* nodelist output buffer size */
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#define LPFC_NODELIST_SIZE 8192
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#define LPFC_NODELIST_ENTRY_SIZE 120
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/* dumpHBASlim output buffer size */
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#define LPFC_DUMPHBASLIM_SIZE 4096
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/* dumpHostSlim output buffer size */
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#define LPFC_DUMPHOSTSLIM_SIZE 4096
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/* hbqinfo output buffer size */
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#define LPFC_HBQINFO_SIZE 8192
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struct lpfc_debug {
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char *buffer;
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int len;
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};
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static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
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static unsigned long lpfc_debugfs_start_time = 0L;
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/**
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* lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
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* @vport: The vport to gather the log info from.
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* @buf: The buffer to dump log into.
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* @size: The maximum amount of data to process.
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*
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* Description:
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* This routine gathers the lpfc discovery debugfs data from the @vport and
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* dumps it to @buf up to @size number of bytes. It will start at the next entry
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* in the log and process the log until the end of the buffer. Then it will
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* gather from the beginning of the log and process until the current entry.
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*
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* Notes:
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* Discovery logging will be disabled while while this routine dumps the log.
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*
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* Return Value:
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* This routine returns the amount of bytes that were dumped into @buf and will
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* not exceed @size.
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**/
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static int
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lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
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{
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int i, index, len, enable;
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uint32_t ms;
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struct lpfc_debugfs_trc *dtp;
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char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
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enable = lpfc_debugfs_enable;
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lpfc_debugfs_enable = 0;
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len = 0;
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index = (atomic_read(&vport->disc_trc_cnt) + 1) &
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(lpfc_debugfs_max_disc_trc - 1);
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for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
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dtp = vport->disc_trc + i;
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if (!dtp->fmt)
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continue;
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ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
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snprintf(buffer,
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LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
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dtp->seq_cnt, ms, dtp->fmt);
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len += snprintf(buf+len, size-len, buffer,
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dtp->data1, dtp->data2, dtp->data3);
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}
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for (i = 0; i < index; i++) {
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dtp = vport->disc_trc + i;
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if (!dtp->fmt)
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continue;
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ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
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snprintf(buffer,
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LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
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dtp->seq_cnt, ms, dtp->fmt);
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len += snprintf(buf+len, size-len, buffer,
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dtp->data1, dtp->data2, dtp->data3);
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}
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lpfc_debugfs_enable = enable;
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return len;
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}
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/**
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* lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
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* @phba: The HBA to gather the log info from.
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* @buf: The buffer to dump log into.
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* @size: The maximum amount of data to process.
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*
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* Description:
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* This routine gathers the lpfc slow ring debugfs data from the @phba and
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* dumps it to @buf up to @size number of bytes. It will start at the next entry
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* in the log and process the log until the end of the buffer. Then it will
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* gather from the beginning of the log and process until the current entry.
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*
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* Notes:
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* Slow ring logging will be disabled while while this routine dumps the log.
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*
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* Return Value:
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* This routine returns the amount of bytes that were dumped into @buf and will
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* not exceed @size.
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**/
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static int
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lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
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{
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int i, index, len, enable;
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uint32_t ms;
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struct lpfc_debugfs_trc *dtp;
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char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
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enable = lpfc_debugfs_enable;
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lpfc_debugfs_enable = 0;
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len = 0;
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index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
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(lpfc_debugfs_max_slow_ring_trc - 1);
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for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
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dtp = phba->slow_ring_trc + i;
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if (!dtp->fmt)
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continue;
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ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
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snprintf(buffer,
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LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
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dtp->seq_cnt, ms, dtp->fmt);
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len += snprintf(buf+len, size-len, buffer,
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dtp->data1, dtp->data2, dtp->data3);
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}
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for (i = 0; i < index; i++) {
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dtp = phba->slow_ring_trc + i;
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if (!dtp->fmt)
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continue;
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ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
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snprintf(buffer,
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LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
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dtp->seq_cnt, ms, dtp->fmt);
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len += snprintf(buf+len, size-len, buffer,
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dtp->data1, dtp->data2, dtp->data3);
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}
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lpfc_debugfs_enable = enable;
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return len;
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}
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static int lpfc_debugfs_last_hbq = -1;
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/**
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* lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
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* @phba: The HBA to gather host buffer info from.
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* @buf: The buffer to dump log into.
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* @size: The maximum amount of data to process.
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*
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* Description:
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* This routine dumps the host buffer queue info from the @phba to @buf up to
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* @size number of bytes. A header that describes the current hbq state will be
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* dumped to @buf first and then info on each hbq entry will be dumped to @buf
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* until @size bytes have been dumped or all the hbq info has been dumped.
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*
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* Notes:
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* This routine will rotate through each configured HBQ each time called.
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*
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* Return Value:
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* This routine returns the amount of bytes that were dumped into @buf and will
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* not exceed @size.
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**/
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static int
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lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
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{
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int len = 0;
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int cnt, i, j, found, posted, low;
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uint32_t phys, raw_index, getidx;
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struct lpfc_hbq_init *hip;
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struct hbq_s *hbqs;
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struct lpfc_hbq_entry *hbqe;
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struct lpfc_dmabuf *d_buf;
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struct hbq_dmabuf *hbq_buf;
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if (phba->sli_rev != 3)
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return 0;
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cnt = LPFC_HBQINFO_SIZE;
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spin_lock_irq(&phba->hbalock);
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/* toggle between multiple hbqs, if any */
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i = lpfc_sli_hbq_count();
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if (i > 1) {
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lpfc_debugfs_last_hbq++;
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if (lpfc_debugfs_last_hbq >= i)
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lpfc_debugfs_last_hbq = 0;
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}
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else
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lpfc_debugfs_last_hbq = 0;
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i = lpfc_debugfs_last_hbq;
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len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
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hbqs = &phba->hbqs[i];
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posted = 0;
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list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
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posted++;
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hip = lpfc_hbq_defs[i];
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len += snprintf(buf+len, size-len,
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"idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
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hip->hbq_index, hip->profile, hip->rn,
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hip->buffer_count, hip->init_count, hip->add_count, posted);
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raw_index = phba->hbq_get[i];
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getidx = le32_to_cpu(raw_index);
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len += snprintf(buf+len, size-len,
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"entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
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hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
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hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
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hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
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for (j=0; j<hbqs->entry_count; j++) {
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len += snprintf(buf+len, size-len,
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"%03d: %08x %04x %05x ", j,
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le32_to_cpu(hbqe->bde.addrLow),
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le32_to_cpu(hbqe->bde.tus.w),
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le32_to_cpu(hbqe->buffer_tag));
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i = 0;
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found = 0;
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/* First calculate if slot has an associated posted buffer */
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low = hbqs->hbqPutIdx - posted;
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if (low >= 0) {
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if ((j >= hbqs->hbqPutIdx) || (j < low)) {
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len += snprintf(buf+len, size-len, "Unused\n");
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goto skipit;
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}
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}
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else {
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if ((j >= hbqs->hbqPutIdx) &&
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(j < (hbqs->entry_count+low))) {
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len += snprintf(buf+len, size-len, "Unused\n");
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goto skipit;
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}
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}
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/* Get the Buffer info for the posted buffer */
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list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
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hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
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phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
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if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
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len += snprintf(buf+len, size-len,
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"Buf%d: %p %06x\n", i,
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hbq_buf->dbuf.virt, hbq_buf->tag);
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found = 1;
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break;
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}
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i++;
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}
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if (!found) {
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len += snprintf(buf+len, size-len, "No DMAinfo?\n");
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}
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skipit:
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hbqe++;
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if (len > LPFC_HBQINFO_SIZE - 54)
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break;
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}
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spin_unlock_irq(&phba->hbalock);
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return len;
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}
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static int lpfc_debugfs_last_hba_slim_off;
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/**
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* lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
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* @phba: The HBA to gather SLIM info from.
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* @buf: The buffer to dump log into.
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* @size: The maximum amount of data to process.
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*
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* Description:
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* This routine dumps the current contents of HBA SLIM for the HBA associated
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* with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
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*
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* Notes:
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* This routine will only dump up to 1024 bytes of data each time called and
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* should be called multiple times to dump the entire HBA SLIM.
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*
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* Return Value:
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* This routine returns the amount of bytes that were dumped into @buf and will
|
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* not exceed @size.
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**/
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static int
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lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
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{
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int len = 0;
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int i, off;
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uint32_t *ptr;
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char buffer[1024];
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off = 0;
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spin_lock_irq(&phba->hbalock);
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len += snprintf(buf+len, size-len, "HBA SLIM\n");
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lpfc_memcpy_from_slim(buffer,
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phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
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ptr = (uint32_t *)&buffer[0];
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off = lpfc_debugfs_last_hba_slim_off;
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|
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/* Set it up for the next time */
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lpfc_debugfs_last_hba_slim_off += 1024;
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if (lpfc_debugfs_last_hba_slim_off >= 4096)
|
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lpfc_debugfs_last_hba_slim_off = 0;
|
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|
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i = 1024;
|
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while (i > 0) {
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len += snprintf(buf+len, size-len,
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"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
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off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
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*(ptr+5), *(ptr+6), *(ptr+7));
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ptr += 8;
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i -= (8 * sizeof(uint32_t));
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off += (8 * sizeof(uint32_t));
|
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}
|
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|
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spin_unlock_irq(&phba->hbalock);
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return len;
|
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}
|
|
|
|
/**
|
|
* lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
|
|
* @phba: The HBA to gather Host SLIM info from.
|
|
* @buf: The buffer to dump log into.
|
|
* @size: The maximum amount of data to process.
|
|
*
|
|
* Description:
|
|
* This routine dumps the current contents of host SLIM for the host associated
|
|
* with @phba to @buf up to @size bytes of data. The dump will contain the
|
|
* Mailbox, PCB, Rings, and Registers that are located in host memory.
|
|
*
|
|
* Return Value:
|
|
* This routine returns the amount of bytes that were dumped into @buf and will
|
|
* not exceed @size.
|
|
**/
|
|
static int
|
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lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
|
|
{
|
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int len = 0;
|
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int i, off;
|
|
uint32_t word0, word1, word2, word3;
|
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uint32_t *ptr;
|
|
struct lpfc_pgp *pgpp;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
off = 0;
|
|
spin_lock_irq(&phba->hbalock);
|
|
|
|
len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
|
|
ptr = (uint32_t *)phba->slim2p.virt;
|
|
i = sizeof(MAILBOX_t);
|
|
while (i > 0) {
|
|
len += snprintf(buf+len, size-len,
|
|
"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
|
|
off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
|
|
*(ptr+5), *(ptr+6), *(ptr+7));
|
|
ptr += 8;
|
|
i -= (8 * sizeof(uint32_t));
|
|
off += (8 * sizeof(uint32_t));
|
|
}
|
|
|
|
len += snprintf(buf+len, size-len, "SLIM PCB\n");
|
|
ptr = (uint32_t *)phba->pcb;
|
|
i = sizeof(PCB_t);
|
|
while (i > 0) {
|
|
len += snprintf(buf+len, size-len,
|
|
"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
|
|
off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
|
|
*(ptr+5), *(ptr+6), *(ptr+7));
|
|
ptr += 8;
|
|
i -= (8 * sizeof(uint32_t));
|
|
off += (8 * sizeof(uint32_t));
|
|
}
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
pgpp = &phba->port_gp[i];
|
|
pring = &psli->ring[i];
|
|
len += snprintf(buf+len, size-len,
|
|
"Ring %d: CMD GetInx:%d (Max:%d Next:%d "
|
|
"Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
|
|
i, pgpp->cmdGetInx, pring->numCiocb,
|
|
pring->next_cmdidx, pring->local_getidx,
|
|
pring->flag, pgpp->rspPutInx, pring->numRiocb);
|
|
}
|
|
|
|
if (phba->sli_rev <= LPFC_SLI_REV3) {
|
|
word0 = readl(phba->HAregaddr);
|
|
word1 = readl(phba->CAregaddr);
|
|
word2 = readl(phba->HSregaddr);
|
|
word3 = readl(phba->HCregaddr);
|
|
len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
|
|
"HC:%08x\n", word0, word1, word2, word3);
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return len;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_nodelist_data - Dump target node list to a buffer
|
|
* @vport: The vport to gather target node info from.
|
|
* @buf: The buffer to dump log into.
|
|
* @size: The maximum amount of data to process.
|
|
*
|
|
* Description:
|
|
* This routine dumps the current target node list associated with @vport to
|
|
* @buf up to @size bytes of data. Each node entry in the dump will contain a
|
|
* node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
|
|
*
|
|
* Return Value:
|
|
* This routine returns the amount of bytes that were dumped into @buf and will
|
|
* not exceed @size.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
|
|
{
|
|
int len = 0;
|
|
int cnt;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp;
|
|
unsigned char *statep, *name;
|
|
|
|
cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (!cnt) {
|
|
len += snprintf(buf+len, size-len,
|
|
"Missing Nodelist Entries\n");
|
|
break;
|
|
}
|
|
cnt--;
|
|
switch (ndlp->nlp_state) {
|
|
case NLP_STE_UNUSED_NODE:
|
|
statep = "UNUSED";
|
|
break;
|
|
case NLP_STE_PLOGI_ISSUE:
|
|
statep = "PLOGI ";
|
|
break;
|
|
case NLP_STE_ADISC_ISSUE:
|
|
statep = "ADISC ";
|
|
break;
|
|
case NLP_STE_REG_LOGIN_ISSUE:
|
|
statep = "REGLOG";
|
|
break;
|
|
case NLP_STE_PRLI_ISSUE:
|
|
statep = "PRLI ";
|
|
break;
|
|
case NLP_STE_UNMAPPED_NODE:
|
|
statep = "UNMAP ";
|
|
break;
|
|
case NLP_STE_MAPPED_NODE:
|
|
statep = "MAPPED";
|
|
break;
|
|
case NLP_STE_NPR_NODE:
|
|
statep = "NPR ";
|
|
break;
|
|
default:
|
|
statep = "UNKNOWN";
|
|
}
|
|
len += snprintf(buf+len, size-len, "%s DID:x%06x ",
|
|
statep, ndlp->nlp_DID);
|
|
name = (unsigned char *)&ndlp->nlp_portname;
|
|
len += snprintf(buf+len, size-len,
|
|
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
|
|
*name, *(name+1), *(name+2), *(name+3),
|
|
*(name+4), *(name+5), *(name+6), *(name+7));
|
|
name = (unsigned char *)&ndlp->nlp_nodename;
|
|
len += snprintf(buf+len, size-len,
|
|
"WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
|
|
*name, *(name+1), *(name+2), *(name+3),
|
|
*(name+4), *(name+5), *(name+6), *(name+7));
|
|
len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ",
|
|
ndlp->nlp_rpi, ndlp->nlp_flag);
|
|
if (!ndlp->nlp_type)
|
|
len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
|
|
if (ndlp->nlp_type & NLP_FC_NODE)
|
|
len += snprintf(buf+len, size-len, "FC_NODE ");
|
|
if (ndlp->nlp_type & NLP_FABRIC)
|
|
len += snprintf(buf+len, size-len, "FABRIC ");
|
|
if (ndlp->nlp_type & NLP_FCP_TARGET)
|
|
len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
|
|
ndlp->nlp_sid);
|
|
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
|
|
len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
|
|
len += snprintf(buf+len, size-len, "usgmap:%x ",
|
|
ndlp->nlp_usg_map);
|
|
len += snprintf(buf+len, size-len, "refcnt:%x",
|
|
atomic_read(&ndlp->kref.refcount));
|
|
len += snprintf(buf+len, size-len, "\n");
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
return len;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* lpfc_debugfs_disc_trc - Store discovery trace log
|
|
* @vport: The vport to associate this trace string with for retrieval.
|
|
* @mask: Log entry classification.
|
|
* @fmt: Format string to be displayed when dumping the log.
|
|
* @data1: 1st data parameter to be applied to @fmt.
|
|
* @data2: 2nd data parameter to be applied to @fmt.
|
|
* @data3: 3rd data parameter to be applied to @fmt.
|
|
*
|
|
* Description:
|
|
* This routine is used by the driver code to add a debugfs log entry to the
|
|
* discovery trace buffer associated with @vport. Only entries with a @mask that
|
|
* match the current debugfs discovery mask will be saved. Entries that do not
|
|
* match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
|
|
* printf when displaying the log.
|
|
**/
|
|
inline void
|
|
lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
|
|
uint32_t data1, uint32_t data2, uint32_t data3)
|
|
{
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
struct lpfc_debugfs_trc *dtp;
|
|
int index;
|
|
|
|
if (!(lpfc_debugfs_mask_disc_trc & mask))
|
|
return;
|
|
|
|
if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
|
|
!vport || !vport->disc_trc)
|
|
return;
|
|
|
|
index = atomic_inc_return(&vport->disc_trc_cnt) &
|
|
(lpfc_debugfs_max_disc_trc - 1);
|
|
dtp = vport->disc_trc + index;
|
|
dtp->fmt = fmt;
|
|
dtp->data1 = data1;
|
|
dtp->data2 = data2;
|
|
dtp->data3 = data3;
|
|
dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
|
|
dtp->jif = jiffies;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_slow_ring_trc - Store slow ring trace log
|
|
* @phba: The phba to associate this trace string with for retrieval.
|
|
* @fmt: Format string to be displayed when dumping the log.
|
|
* @data1: 1st data parameter to be applied to @fmt.
|
|
* @data2: 2nd data parameter to be applied to @fmt.
|
|
* @data3: 3rd data parameter to be applied to @fmt.
|
|
*
|
|
* Description:
|
|
* This routine is used by the driver code to add a debugfs log entry to the
|
|
* discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
|
|
* @data3 are used like printf when displaying the log.
|
|
**/
|
|
inline void
|
|
lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
|
|
uint32_t data1, uint32_t data2, uint32_t data3)
|
|
{
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
struct lpfc_debugfs_trc *dtp;
|
|
int index;
|
|
|
|
if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
|
|
!phba || !phba->slow_ring_trc)
|
|
return;
|
|
|
|
index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
|
|
(lpfc_debugfs_max_slow_ring_trc - 1);
|
|
dtp = phba->slow_ring_trc + index;
|
|
dtp->fmt = fmt;
|
|
dtp->data1 = data1;
|
|
dtp->data2 = data2;
|
|
dtp->data3 = data3;
|
|
dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
|
|
dtp->jif = jiffies;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
/**
|
|
* lpfc_debugfs_disc_trc_open - Open the discovery trace log
|
|
* @inode: The inode pointer that contains a vport pointer.
|
|
* @file: The file pointer to attach the log output.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It gets
|
|
* the vport from the i_private field in @inode, allocates the necessary buffer
|
|
* for the log, fills the buffer from the in-memory log for this vport, and then
|
|
* returns a pointer to that log in the private_data field in @file.
|
|
*
|
|
* Returns:
|
|
* This function returns zero if successful. On error it will return an negative
|
|
* error value.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_vport *vport = inode->i_private;
|
|
struct lpfc_debug *debug;
|
|
int size;
|
|
int rc = -ENOMEM;
|
|
|
|
if (!lpfc_debugfs_max_disc_trc) {
|
|
rc = -ENOSPC;
|
|
goto out;
|
|
}
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundary */
|
|
size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
|
|
size = PAGE_ALIGN(size);
|
|
|
|
debug->buffer = kmalloc(size, GFP_KERNEL);
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
|
|
* @inode: The inode pointer that contains a vport pointer.
|
|
* @file: The file pointer to attach the log output.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It gets
|
|
* the vport from the i_private field in @inode, allocates the necessary buffer
|
|
* for the log, fills the buffer from the in-memory log for this vport, and then
|
|
* returns a pointer to that log in the private_data field in @file.
|
|
*
|
|
* Returns:
|
|
* This function returns zero if successful. On error it will return an negative
|
|
* error value.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_hba *phba = inode->i_private;
|
|
struct lpfc_debug *debug;
|
|
int size;
|
|
int rc = -ENOMEM;
|
|
|
|
if (!lpfc_debugfs_max_slow_ring_trc) {
|
|
rc = -ENOSPC;
|
|
goto out;
|
|
}
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundary */
|
|
size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
|
|
size = PAGE_ALIGN(size);
|
|
|
|
debug->buffer = kmalloc(size, GFP_KERNEL);
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
|
|
* @inode: The inode pointer that contains a vport pointer.
|
|
* @file: The file pointer to attach the log output.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It gets
|
|
* the vport from the i_private field in @inode, allocates the necessary buffer
|
|
* for the log, fills the buffer from the in-memory log for this vport, and then
|
|
* returns a pointer to that log in the private_data field in @file.
|
|
*
|
|
* Returns:
|
|
* This function returns zero if successful. On error it will return an negative
|
|
* error value.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_hba *phba = inode->i_private;
|
|
struct lpfc_debug *debug;
|
|
int rc = -ENOMEM;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundary */
|
|
debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
|
|
LPFC_HBQINFO_SIZE);
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
|
|
* @inode: The inode pointer that contains a vport pointer.
|
|
* @file: The file pointer to attach the log output.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It gets
|
|
* the vport from the i_private field in @inode, allocates the necessary buffer
|
|
* for the log, fills the buffer from the in-memory log for this vport, and then
|
|
* returns a pointer to that log in the private_data field in @file.
|
|
*
|
|
* Returns:
|
|
* This function returns zero if successful. On error it will return an negative
|
|
* error value.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_hba *phba = inode->i_private;
|
|
struct lpfc_debug *debug;
|
|
int rc = -ENOMEM;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundary */
|
|
debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
|
|
LPFC_DUMPHBASLIM_SIZE);
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
|
|
* @inode: The inode pointer that contains a vport pointer.
|
|
* @file: The file pointer to attach the log output.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It gets
|
|
* the vport from the i_private field in @inode, allocates the necessary buffer
|
|
* for the log, fills the buffer from the in-memory log for this vport, and then
|
|
* returns a pointer to that log in the private_data field in @file.
|
|
*
|
|
* Returns:
|
|
* This function returns zero if successful. On error it will return an negative
|
|
* error value.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_hba *phba = inode->i_private;
|
|
struct lpfc_debug *debug;
|
|
int rc = -ENOMEM;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundary */
|
|
debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
|
|
LPFC_DUMPHOSTSLIM_SIZE);
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug;
|
|
int rc = -ENOMEM;
|
|
|
|
if (!_dump_buf_data)
|
|
return -EBUSY;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundry */
|
|
printk(KERN_ERR "BLKGRD %s: _dump_buf_data=0x%p\n",
|
|
__func__, _dump_buf_data);
|
|
debug->buffer = _dump_buf_data;
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug;
|
|
int rc = -ENOMEM;
|
|
|
|
if (!_dump_buf_dif)
|
|
return -EBUSY;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundry */
|
|
printk(KERN_ERR "BLKGRD %s: _dump_buf_dif=0x%p file=%s\n", __func__,
|
|
_dump_buf_dif, file->f_dentry->d_name.name);
|
|
debug->buffer = _dump_buf_dif;
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
static ssize_t
|
|
lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
|
|
size_t nbytes, loff_t *ppos)
|
|
{
|
|
/*
|
|
* The Data/DIF buffers only save one failing IO
|
|
* The write op is used as a reset mechanism after an IO has
|
|
* already been saved to the next one can be saved
|
|
*/
|
|
spin_lock(&_dump_buf_lock);
|
|
|
|
memset((void *)_dump_buf_data, 0,
|
|
((1 << PAGE_SHIFT) << _dump_buf_data_order));
|
|
memset((void *)_dump_buf_dif, 0,
|
|
((1 << PAGE_SHIFT) << _dump_buf_dif_order));
|
|
|
|
_dump_buf_done = 0;
|
|
|
|
spin_unlock(&_dump_buf_lock);
|
|
|
|
return nbytes;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
|
|
* @inode: The inode pointer that contains a vport pointer.
|
|
* @file: The file pointer to attach the log output.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It gets
|
|
* the vport from the i_private field in @inode, allocates the necessary buffer
|
|
* for the log, fills the buffer from the in-memory log for this vport, and then
|
|
* returns a pointer to that log in the private_data field in @file.
|
|
*
|
|
* Returns:
|
|
* This function returns zero if successful. On error it will return an negative
|
|
* error value.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_vport *vport = inode->i_private;
|
|
struct lpfc_debug *debug;
|
|
int rc = -ENOMEM;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
goto out;
|
|
|
|
/* Round to page boundary */
|
|
debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer) {
|
|
kfree(debug);
|
|
goto out;
|
|
}
|
|
|
|
debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
|
|
LPFC_NODELIST_SIZE);
|
|
file->private_data = debug;
|
|
|
|
rc = 0;
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_lseek - Seek through a debugfs file
|
|
* @file: The file pointer to seek through.
|
|
* @off: The offset to seek to or the amount to seek by.
|
|
* @whence: Indicates how to seek.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs lseek file operation. The
|
|
* @whence parameter indicates whether @off is the offset to directly seek to,
|
|
* or if it is a value to seek forward or reverse by. This function figures out
|
|
* what the new offset of the debugfs file will be and assigns that value to the
|
|
* f_pos field of @file.
|
|
*
|
|
* Returns:
|
|
* This function returns the new offset if successful and returns a negative
|
|
* error if unable to process the seek.
|
|
**/
|
|
static loff_t
|
|
lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
|
|
{
|
|
struct lpfc_debug *debug;
|
|
loff_t pos = -1;
|
|
|
|
debug = file->private_data;
|
|
|
|
switch (whence) {
|
|
case 0:
|
|
pos = off;
|
|
break;
|
|
case 1:
|
|
pos = file->f_pos + off;
|
|
break;
|
|
case 2:
|
|
pos = debug->len - off;
|
|
}
|
|
return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos);
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_read - Read a debugfs file
|
|
* @file: The file pointer to read from.
|
|
* @buf: The buffer to copy the data to.
|
|
* @nbytes: The number of bytes to read.
|
|
* @ppos: The position in the file to start reading from.
|
|
*
|
|
* Description:
|
|
* This routine reads data from from the buffer indicated in the private_data
|
|
* field of @file. It will start reading at @ppos and copy up to @nbytes of
|
|
* data to @buf.
|
|
*
|
|
* Returns:
|
|
* This function returns the amount of data that was read (this could be less
|
|
* than @nbytes if the end of the file was reached) or a negative error value.
|
|
**/
|
|
static ssize_t
|
|
lpfc_debugfs_read(struct file *file, char __user *buf,
|
|
size_t nbytes, loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
|
|
debug->len);
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_release - Release the buffer used to store debugfs file data
|
|
* @inode: The inode pointer that contains a vport pointer. (unused)
|
|
* @file: The file pointer that contains the buffer to release.
|
|
*
|
|
* Description:
|
|
* This routine frees the buffer that was allocated when the debugfs file was
|
|
* opened.
|
|
*
|
|
* Returns:
|
|
* This function returns zero.
|
|
**/
|
|
static int
|
|
lpfc_debugfs_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
|
|
kfree(debug->buffer);
|
|
kfree(debug);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
|
|
debug->buffer = NULL;
|
|
kfree(debug);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#undef lpfc_debugfs_op_disc_trc
|
|
static const struct file_operations lpfc_debugfs_op_disc_trc = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_disc_trc_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.release = lpfc_debugfs_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_nodelist
|
|
static const struct file_operations lpfc_debugfs_op_nodelist = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_nodelist_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.release = lpfc_debugfs_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_hbqinfo
|
|
static const struct file_operations lpfc_debugfs_op_hbqinfo = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_hbqinfo_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.release = lpfc_debugfs_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_dumpHBASlim
|
|
static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_dumpHBASlim_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.release = lpfc_debugfs_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_dumpHostSlim
|
|
static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_dumpHostSlim_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.release = lpfc_debugfs_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_dumpData
|
|
static const struct file_operations lpfc_debugfs_op_dumpData = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_dumpData_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.write = lpfc_debugfs_dumpDataDif_write,
|
|
.release = lpfc_debugfs_dumpDataDif_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_dumpDif
|
|
static const struct file_operations lpfc_debugfs_op_dumpDif = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_dumpDif_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.write = lpfc_debugfs_dumpDataDif_write,
|
|
.release = lpfc_debugfs_dumpDataDif_release,
|
|
};
|
|
|
|
#undef lpfc_debugfs_op_slow_ring_trc
|
|
static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_debugfs_slow_ring_trc_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_debugfs_read,
|
|
.release = lpfc_debugfs_release,
|
|
};
|
|
|
|
static struct dentry *lpfc_debugfs_root = NULL;
|
|
static atomic_t lpfc_debugfs_hba_count;
|
|
#endif
|
|
|
|
/**
|
|
* lpfc_debugfs_initialize - Initialize debugfs for a vport
|
|
* @vport: The vport pointer to initialize.
|
|
*
|
|
* Description:
|
|
* When Debugfs is configured this routine sets up the lpfc debugfs file system.
|
|
* If not already created, this routine will create the lpfc directory, and
|
|
* lpfcX directory (for this HBA), and vportX directory for this vport. It will
|
|
* also create each file used to access lpfc specific debugfs information.
|
|
**/
|
|
inline void
|
|
lpfc_debugfs_initialize(struct lpfc_vport *vport)
|
|
{
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
struct lpfc_hba *phba = vport->phba;
|
|
char name[64];
|
|
uint32_t num, i;
|
|
|
|
if (!lpfc_debugfs_enable)
|
|
return;
|
|
|
|
/* Setup lpfc root directory */
|
|
if (!lpfc_debugfs_root) {
|
|
lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
|
|
atomic_set(&lpfc_debugfs_hba_count, 0);
|
|
if (!lpfc_debugfs_root) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0408 Cannot create debugfs root\n");
|
|
goto debug_failed;
|
|
}
|
|
}
|
|
if (!lpfc_debugfs_start_time)
|
|
lpfc_debugfs_start_time = jiffies;
|
|
|
|
/* Setup lpfcX directory for specific HBA */
|
|
snprintf(name, sizeof(name), "lpfc%d", phba->brd_no);
|
|
if (!phba->hba_debugfs_root) {
|
|
phba->hba_debugfs_root =
|
|
debugfs_create_dir(name, lpfc_debugfs_root);
|
|
if (!phba->hba_debugfs_root) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0412 Cannot create debugfs hba\n");
|
|
goto debug_failed;
|
|
}
|
|
atomic_inc(&lpfc_debugfs_hba_count);
|
|
atomic_set(&phba->debugfs_vport_count, 0);
|
|
|
|
/* Setup hbqinfo */
|
|
snprintf(name, sizeof(name), "hbqinfo");
|
|
phba->debug_hbqinfo =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->hba_debugfs_root,
|
|
phba, &lpfc_debugfs_op_hbqinfo);
|
|
if (!phba->debug_hbqinfo) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0411 Cannot create debugfs hbqinfo\n");
|
|
goto debug_failed;
|
|
}
|
|
|
|
/* Setup dumpHBASlim */
|
|
snprintf(name, sizeof(name), "dumpHBASlim");
|
|
phba->debug_dumpHBASlim =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->hba_debugfs_root,
|
|
phba, &lpfc_debugfs_op_dumpHBASlim);
|
|
if (!phba->debug_dumpHBASlim) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0413 Cannot create debugfs dumpHBASlim\n");
|
|
goto debug_failed;
|
|
}
|
|
|
|
/* Setup dumpHostSlim */
|
|
snprintf(name, sizeof(name), "dumpHostSlim");
|
|
phba->debug_dumpHostSlim =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->hba_debugfs_root,
|
|
phba, &lpfc_debugfs_op_dumpHostSlim);
|
|
if (!phba->debug_dumpHostSlim) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0414 Cannot create debugfs dumpHostSlim\n");
|
|
goto debug_failed;
|
|
}
|
|
|
|
/* Setup dumpData */
|
|
snprintf(name, sizeof(name), "dumpData");
|
|
phba->debug_dumpData =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->hba_debugfs_root,
|
|
phba, &lpfc_debugfs_op_dumpData);
|
|
if (!phba->debug_dumpData) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0800 Cannot create debugfs dumpData\n");
|
|
goto debug_failed;
|
|
}
|
|
|
|
/* Setup dumpDif */
|
|
snprintf(name, sizeof(name), "dumpDif");
|
|
phba->debug_dumpDif =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->hba_debugfs_root,
|
|
phba, &lpfc_debugfs_op_dumpDif);
|
|
if (!phba->debug_dumpDif) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0801 Cannot create debugfs dumpDif\n");
|
|
goto debug_failed;
|
|
}
|
|
|
|
|
|
|
|
/* Setup slow ring trace */
|
|
if (lpfc_debugfs_max_slow_ring_trc) {
|
|
num = lpfc_debugfs_max_slow_ring_trc - 1;
|
|
if (num & lpfc_debugfs_max_slow_ring_trc) {
|
|
/* Change to be a power of 2 */
|
|
num = lpfc_debugfs_max_slow_ring_trc;
|
|
i = 0;
|
|
while (num > 1) {
|
|
num = num >> 1;
|
|
i++;
|
|
}
|
|
lpfc_debugfs_max_slow_ring_trc = (1 << i);
|
|
printk(KERN_ERR
|
|
"lpfc_debugfs_max_disc_trc changed to "
|
|
"%d\n", lpfc_debugfs_max_disc_trc);
|
|
}
|
|
}
|
|
|
|
|
|
snprintf(name, sizeof(name), "slow_ring_trace");
|
|
phba->debug_slow_ring_trc =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->hba_debugfs_root,
|
|
phba, &lpfc_debugfs_op_slow_ring_trc);
|
|
if (!phba->debug_slow_ring_trc) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0415 Cannot create debugfs "
|
|
"slow_ring_trace\n");
|
|
goto debug_failed;
|
|
}
|
|
if (!phba->slow_ring_trc) {
|
|
phba->slow_ring_trc = kmalloc(
|
|
(sizeof(struct lpfc_debugfs_trc) *
|
|
lpfc_debugfs_max_slow_ring_trc),
|
|
GFP_KERNEL);
|
|
if (!phba->slow_ring_trc) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0416 Cannot create debugfs "
|
|
"slow_ring buffer\n");
|
|
goto debug_failed;
|
|
}
|
|
atomic_set(&phba->slow_ring_trc_cnt, 0);
|
|
memset(phba->slow_ring_trc, 0,
|
|
(sizeof(struct lpfc_debugfs_trc) *
|
|
lpfc_debugfs_max_slow_ring_trc));
|
|
}
|
|
}
|
|
|
|
snprintf(name, sizeof(name), "vport%d", vport->vpi);
|
|
if (!vport->vport_debugfs_root) {
|
|
vport->vport_debugfs_root =
|
|
debugfs_create_dir(name, phba->hba_debugfs_root);
|
|
if (!vport->vport_debugfs_root) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0417 Cant create debugfs");
|
|
goto debug_failed;
|
|
}
|
|
atomic_inc(&phba->debugfs_vport_count);
|
|
}
|
|
|
|
if (lpfc_debugfs_max_disc_trc) {
|
|
num = lpfc_debugfs_max_disc_trc - 1;
|
|
if (num & lpfc_debugfs_max_disc_trc) {
|
|
/* Change to be a power of 2 */
|
|
num = lpfc_debugfs_max_disc_trc;
|
|
i = 0;
|
|
while (num > 1) {
|
|
num = num >> 1;
|
|
i++;
|
|
}
|
|
lpfc_debugfs_max_disc_trc = (1 << i);
|
|
printk(KERN_ERR
|
|
"lpfc_debugfs_max_disc_trc changed to %d\n",
|
|
lpfc_debugfs_max_disc_trc);
|
|
}
|
|
}
|
|
|
|
vport->disc_trc = kzalloc(
|
|
(sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
|
|
GFP_KERNEL);
|
|
|
|
if (!vport->disc_trc) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0418 Cannot create debugfs disc trace "
|
|
"buffer\n");
|
|
goto debug_failed;
|
|
}
|
|
atomic_set(&vport->disc_trc_cnt, 0);
|
|
|
|
snprintf(name, sizeof(name), "discovery_trace");
|
|
vport->debug_disc_trc =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
vport->vport_debugfs_root,
|
|
vport, &lpfc_debugfs_op_disc_trc);
|
|
if (!vport->debug_disc_trc) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0419 Cannot create debugfs "
|
|
"discovery_trace\n");
|
|
goto debug_failed;
|
|
}
|
|
snprintf(name, sizeof(name), "nodelist");
|
|
vport->debug_nodelist =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
vport->vport_debugfs_root,
|
|
vport, &lpfc_debugfs_op_nodelist);
|
|
if (!vport->debug_nodelist) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"0409 Cant create debugfs nodelist");
|
|
goto debug_failed;
|
|
}
|
|
debug_failed:
|
|
return;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
|
|
* @vport: The vport pointer to remove from debugfs.
|
|
*
|
|
* Description:
|
|
* When Debugfs is configured this routine removes debugfs file system elements
|
|
* that are specific to this vport. It also checks to see if there are any
|
|
* users left for the debugfs directories associated with the HBA and driver. If
|
|
* this is the last user of the HBA directory or driver directory then it will
|
|
* remove those from the debugfs infrastructure as well.
|
|
**/
|
|
inline void
|
|
lpfc_debugfs_terminate(struct lpfc_vport *vport)
|
|
{
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
if (vport->disc_trc) {
|
|
kfree(vport->disc_trc);
|
|
vport->disc_trc = NULL;
|
|
}
|
|
if (vport->debug_disc_trc) {
|
|
debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
|
|
vport->debug_disc_trc = NULL;
|
|
}
|
|
if (vport->debug_nodelist) {
|
|
debugfs_remove(vport->debug_nodelist); /* nodelist */
|
|
vport->debug_nodelist = NULL;
|
|
}
|
|
|
|
if (vport->vport_debugfs_root) {
|
|
debugfs_remove(vport->vport_debugfs_root); /* vportX */
|
|
vport->vport_debugfs_root = NULL;
|
|
atomic_dec(&phba->debugfs_vport_count);
|
|
}
|
|
if (atomic_read(&phba->debugfs_vport_count) == 0) {
|
|
|
|
if (phba->debug_hbqinfo) {
|
|
debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
|
|
phba->debug_hbqinfo = NULL;
|
|
}
|
|
if (phba->debug_dumpHBASlim) {
|
|
debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
|
|
phba->debug_dumpHBASlim = NULL;
|
|
}
|
|
if (phba->debug_dumpHostSlim) {
|
|
debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
|
|
phba->debug_dumpHostSlim = NULL;
|
|
}
|
|
if (phba->debug_dumpData) {
|
|
debugfs_remove(phba->debug_dumpData); /* dumpData */
|
|
phba->debug_dumpData = NULL;
|
|
}
|
|
|
|
if (phba->debug_dumpDif) {
|
|
debugfs_remove(phba->debug_dumpDif); /* dumpDif */
|
|
phba->debug_dumpDif = NULL;
|
|
}
|
|
|
|
if (phba->slow_ring_trc) {
|
|
kfree(phba->slow_ring_trc);
|
|
phba->slow_ring_trc = NULL;
|
|
}
|
|
if (phba->debug_slow_ring_trc) {
|
|
/* slow_ring_trace */
|
|
debugfs_remove(phba->debug_slow_ring_trc);
|
|
phba->debug_slow_ring_trc = NULL;
|
|
}
|
|
|
|
if (phba->hba_debugfs_root) {
|
|
debugfs_remove(phba->hba_debugfs_root); /* lpfcX */
|
|
phba->hba_debugfs_root = NULL;
|
|
atomic_dec(&lpfc_debugfs_hba_count);
|
|
}
|
|
|
|
if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
|
|
debugfs_remove(lpfc_debugfs_root); /* lpfc */
|
|
lpfc_debugfs_root = NULL;
|
|
}
|
|
}
|
|
#endif
|
|
return;
|
|
}
|