mirror of
https://github.com/edk2-porting/linux-next.git
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0558056c1e
Miscellaneous Fixes and Corrections - Remove the memset in the lpfc_sli4_remove_rpi_hdrs call. - Correct swapping of SGE word 2 relative to offset value - Reorganize CQ and EQ usage to comply with SLI4 Specification. - Expand the driver to check the rn bit. Only detect an error if the error bit is set and the RN bit is NOT set. - If mailbox completion code is not success AND the mailbox status is success, then and only then will the driver overwrite the mailbox status. - When driver initializing device, if the device is on a PCIe bus, set PCI's "needs fundamental reset" bit so that EEH uses fundamental reset instead of hot reset for recovery. - Prevent driver from using new WWN when changed in firmware (until driver reload) - When HBA reports maximum SGE size > 0xffffffff (infinite), override with 0x80000000. - Fixed potential missed SLI4 device initialization failure conditions. - Added 100ms delay before driver action following IF_TYPE_2 function reset. - Reverted patch to UNREG/REG on PLOGI to mapped/unmapped node. - Add a check for the CVL received flag in the fcf inuse routine to avoid unregistering the fcf if Devloss fires before Delay discover timer fires. Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2872 lines
84 KiB
C
2872 lines
84 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) 2007-2011 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/slab.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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* /sys/kernel/debug/lpfc/fnX/vportY
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* where X is the lpfc hba function 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, S_IRUGO);
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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, S_IRUGO);
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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, S_IRUGO);
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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, S_IRUGO);
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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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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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/* iDiag */
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static struct lpfc_idiag idiag;
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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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/* 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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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),
|
|
*(ptr+5), *(ptr+6), *(ptr+7));
|
|
ptr += 8;
|
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i -= (8 * sizeof(uint32_t));
|
|
off += (8 * sizeof(uint32_t));
|
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}
|
|
|
|
spin_unlock_irq(&phba->hbalock);
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|
return len;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
|
|
{
|
|
int len = 0;
|
|
int i, off;
|
|
uint32_t word0, word1, word2, word3;
|
|
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 boundary */
|
|
printk(KERN_ERR "9059 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 boundary */
|
|
printk(KERN_ERR "9060 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;
|
|
}
|
|
|
|
/*
|
|
* ---------------------------------
|
|
* iDiag debugfs file access methods
|
|
* ---------------------------------
|
|
*
|
|
* All access methods are through the proper SLI4 PCI function's debugfs
|
|
* iDiag directory:
|
|
*
|
|
* /sys/kernel/debug/lpfc/fn<#>/iDiag
|
|
*/
|
|
|
|
/**
|
|
* lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
|
|
* @buf: The pointer to the user space buffer.
|
|
* @nbytes: The number of bytes in the user space buffer.
|
|
* @idiag_cmd: pointer to the idiag command struct.
|
|
*
|
|
* This routine reads data from debugfs user space buffer and parses the
|
|
* buffer for getting the idiag command and arguments. The while space in
|
|
* between the set of data is used as the parsing separator.
|
|
*
|
|
* This routine returns 0 when successful, it returns proper error code
|
|
* back to the user space in error conditions.
|
|
*/
|
|
static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
|
|
struct lpfc_idiag_cmd *idiag_cmd)
|
|
{
|
|
char mybuf[64];
|
|
char *pbuf, *step_str;
|
|
int bsize, i;
|
|
|
|
/* Protect copy from user */
|
|
if (!access_ok(VERIFY_READ, buf, nbytes))
|
|
return -EFAULT;
|
|
|
|
memset(mybuf, 0, sizeof(mybuf));
|
|
memset(idiag_cmd, 0, sizeof(*idiag_cmd));
|
|
bsize = min(nbytes, (sizeof(mybuf)-1));
|
|
|
|
if (copy_from_user(mybuf, buf, bsize))
|
|
return -EFAULT;
|
|
pbuf = &mybuf[0];
|
|
step_str = strsep(&pbuf, "\t ");
|
|
|
|
/* The opcode must present */
|
|
if (!step_str)
|
|
return -EINVAL;
|
|
|
|
idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
|
|
if (idiag_cmd->opcode == 0)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
|
|
step_str = strsep(&pbuf, "\t ");
|
|
if (!step_str)
|
|
return i;
|
|
idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
|
|
}
|
|
return i;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_open - idiag open debugfs
|
|
* @inode: The inode pointer that contains a pointer to phba.
|
|
* @file: The file pointer to attach the file operation.
|
|
*
|
|
* Description:
|
|
* This routine is the entry point for the debugfs open file operation. It
|
|
* gets the reference to phba from the i_private field in @inode, it then
|
|
* allocates buffer for the file operation, performs the necessary PCI config
|
|
* space read into the allocated buffer according to the idiag user command
|
|
* setup, and then returns a pointer to buffer 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_idiag_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug;
|
|
|
|
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
|
|
if (!debug)
|
|
return -ENOMEM;
|
|
|
|
debug->i_private = inode->i_private;
|
|
debug->buffer = NULL;
|
|
file->private_data = debug;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_release - Release idiag access file operation
|
|
* @inode: The inode pointer that contains a vport pointer. (unused)
|
|
* @file: The file pointer that contains the buffer to release.
|
|
*
|
|
* Description:
|
|
* This routine is the generic release routine for the idiag access file
|
|
* operation, it frees the buffer that was allocated when the debugfs file
|
|
* was opened.
|
|
*
|
|
* Returns:
|
|
* This function returns zero.
|
|
**/
|
|
static int
|
|
lpfc_idiag_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
|
|
/* Free the buffers to the file operation */
|
|
kfree(debug->buffer);
|
|
kfree(debug);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_cmd_release - Release idiag cmd access file operation
|
|
* @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. It also reset the fields in the idiag command struct in the
|
|
* case of command for write operation.
|
|
*
|
|
* Returns:
|
|
* This function returns zero.
|
|
**/
|
|
static int
|
|
lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
|
|
if (debug->op == LPFC_IDIAG_OP_WR) {
|
|
switch (idiag.cmd.opcode) {
|
|
case LPFC_IDIAG_CMD_PCICFG_WR:
|
|
case LPFC_IDIAG_CMD_PCICFG_ST:
|
|
case LPFC_IDIAG_CMD_PCICFG_CL:
|
|
case LPFC_IDIAG_CMD_QUEACC_WR:
|
|
case LPFC_IDIAG_CMD_QUEACC_ST:
|
|
case LPFC_IDIAG_CMD_QUEACC_CL:
|
|
memset(&idiag, 0, sizeof(idiag));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Free the buffers to the file operation */
|
|
kfree(debug->buffer);
|
|
kfree(debug);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
|
|
* @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 the @phba pci config space according to the
|
|
* idiag command, and copies to user @buf. Depending on the PCI config space
|
|
* read command setup, it does either a single register read of a byte
|
|
* (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
|
|
* registers from the 4K extended PCI config space.
|
|
*
|
|
* 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_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
|
|
loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
|
|
int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
|
|
int where, count;
|
|
char *pbuffer;
|
|
struct pci_dev *pdev;
|
|
uint32_t u32val;
|
|
uint16_t u16val;
|
|
uint8_t u8val;
|
|
|
|
pdev = phba->pcidev;
|
|
if (!pdev)
|
|
return 0;
|
|
|
|
/* This is a user read operation */
|
|
debug->op = LPFC_IDIAG_OP_RD;
|
|
|
|
if (!debug->buffer)
|
|
debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer)
|
|
return 0;
|
|
pbuffer = debug->buffer;
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
|
|
where = idiag.cmd.data[0];
|
|
count = idiag.cmd.data[1];
|
|
} else
|
|
return 0;
|
|
|
|
/* Read single PCI config space register */
|
|
switch (count) {
|
|
case SIZE_U8: /* byte (8 bits) */
|
|
pci_read_config_byte(pdev, where, &u8val);
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"%03x: %02x\n", where, u8val);
|
|
break;
|
|
case SIZE_U16: /* word (16 bits) */
|
|
pci_read_config_word(pdev, where, &u16val);
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"%03x: %04x\n", where, u16val);
|
|
break;
|
|
case SIZE_U32: /* double word (32 bits) */
|
|
pci_read_config_dword(pdev, where, &u32val);
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"%03x: %08x\n", where, u32val);
|
|
break;
|
|
case LPFC_PCI_CFG_BROWSE: /* browse all */
|
|
goto pcicfg_browse;
|
|
break;
|
|
default:
|
|
/* illegal count */
|
|
len = 0;
|
|
break;
|
|
}
|
|
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
|
|
|
|
pcicfg_browse:
|
|
|
|
/* Browse all PCI config space registers */
|
|
offset_label = idiag.offset.last_rd;
|
|
offset = offset_label;
|
|
|
|
/* Read PCI config space */
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"%03x: ", offset_label);
|
|
while (index > 0) {
|
|
pci_read_config_dword(pdev, offset, &u32val);
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"%08x ", u32val);
|
|
offset += sizeof(uint32_t);
|
|
index -= sizeof(uint32_t);
|
|
if (!index)
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"\n");
|
|
else if (!(index % (8 * sizeof(uint32_t)))) {
|
|
offset_label += (8 * sizeof(uint32_t));
|
|
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
|
|
"\n%03x: ", offset_label);
|
|
}
|
|
}
|
|
|
|
/* Set up the offset for next portion of pci cfg read */
|
|
idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
|
|
if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
|
|
idiag.offset.last_rd = 0;
|
|
|
|
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
|
|
* @file: The file pointer to read from.
|
|
* @buf: The buffer to copy the user data from.
|
|
* @nbytes: The number of bytes to get.
|
|
* @ppos: The position in the file to start reading from.
|
|
*
|
|
* This routine get the debugfs idiag command struct from user space and
|
|
* then perform the syntax check for PCI config space read or write command
|
|
* accordingly. In the case of PCI config space read command, it sets up
|
|
* the command in the idiag command struct for the debugfs read operation.
|
|
* In the case of PCI config space write operation, it executes the write
|
|
* operation into the PCI config space accordingly.
|
|
*
|
|
* It returns the @nbytges passing in from debugfs user space when successful.
|
|
* In case of error conditions, it returns proper error code back to the user
|
|
* space.
|
|
*/
|
|
static ssize_t
|
|
lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
|
|
size_t nbytes, loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
|
|
uint32_t where, value, count;
|
|
uint32_t u32val;
|
|
uint16_t u16val;
|
|
uint8_t u8val;
|
|
struct pci_dev *pdev;
|
|
int rc;
|
|
|
|
pdev = phba->pcidev;
|
|
if (!pdev)
|
|
return -EFAULT;
|
|
|
|
/* This is a user write operation */
|
|
debug->op = LPFC_IDIAG_OP_WR;
|
|
|
|
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
|
|
/* Sanity check on PCI config read command line arguments */
|
|
if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
|
|
goto error_out;
|
|
/* Read command from PCI config space, set up command fields */
|
|
where = idiag.cmd.data[0];
|
|
count = idiag.cmd.data[1];
|
|
if (count == LPFC_PCI_CFG_BROWSE) {
|
|
if (where % sizeof(uint32_t))
|
|
goto error_out;
|
|
/* Starting offset to browse */
|
|
idiag.offset.last_rd = where;
|
|
} else if ((count != sizeof(uint8_t)) &&
|
|
(count != sizeof(uint16_t)) &&
|
|
(count != sizeof(uint32_t)))
|
|
goto error_out;
|
|
if (count == sizeof(uint8_t)) {
|
|
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
|
|
goto error_out;
|
|
if (where % sizeof(uint8_t))
|
|
goto error_out;
|
|
}
|
|
if (count == sizeof(uint16_t)) {
|
|
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
|
|
goto error_out;
|
|
if (where % sizeof(uint16_t))
|
|
goto error_out;
|
|
}
|
|
if (count == sizeof(uint32_t)) {
|
|
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
|
|
goto error_out;
|
|
if (where % sizeof(uint32_t))
|
|
goto error_out;
|
|
}
|
|
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
|
|
/* Sanity check on PCI config write command line arguments */
|
|
if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
|
|
goto error_out;
|
|
/* Write command to PCI config space, read-modify-write */
|
|
where = idiag.cmd.data[0];
|
|
count = idiag.cmd.data[1];
|
|
value = idiag.cmd.data[2];
|
|
/* Sanity checks */
|
|
if ((count != sizeof(uint8_t)) &&
|
|
(count != sizeof(uint16_t)) &&
|
|
(count != sizeof(uint32_t)))
|
|
goto error_out;
|
|
if (count == sizeof(uint8_t)) {
|
|
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
|
|
goto error_out;
|
|
if (where % sizeof(uint8_t))
|
|
goto error_out;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
|
|
pci_write_config_byte(pdev, where,
|
|
(uint8_t)value);
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
|
|
rc = pci_read_config_byte(pdev, where, &u8val);
|
|
if (!rc) {
|
|
u8val |= (uint8_t)value;
|
|
pci_write_config_byte(pdev, where,
|
|
u8val);
|
|
}
|
|
}
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
|
|
rc = pci_read_config_byte(pdev, where, &u8val);
|
|
if (!rc) {
|
|
u8val &= (uint8_t)(~value);
|
|
pci_write_config_byte(pdev, where,
|
|
u8val);
|
|
}
|
|
}
|
|
}
|
|
if (count == sizeof(uint16_t)) {
|
|
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
|
|
goto error_out;
|
|
if (where % sizeof(uint16_t))
|
|
goto error_out;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
|
|
pci_write_config_word(pdev, where,
|
|
(uint16_t)value);
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
|
|
rc = pci_read_config_word(pdev, where, &u16val);
|
|
if (!rc) {
|
|
u16val |= (uint16_t)value;
|
|
pci_write_config_word(pdev, where,
|
|
u16val);
|
|
}
|
|
}
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
|
|
rc = pci_read_config_word(pdev, where, &u16val);
|
|
if (!rc) {
|
|
u16val &= (uint16_t)(~value);
|
|
pci_write_config_word(pdev, where,
|
|
u16val);
|
|
}
|
|
}
|
|
}
|
|
if (count == sizeof(uint32_t)) {
|
|
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
|
|
goto error_out;
|
|
if (where % sizeof(uint32_t))
|
|
goto error_out;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
|
|
pci_write_config_dword(pdev, where, value);
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
|
|
rc = pci_read_config_dword(pdev, where,
|
|
&u32val);
|
|
if (!rc) {
|
|
u32val |= value;
|
|
pci_write_config_dword(pdev, where,
|
|
u32val);
|
|
}
|
|
}
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
|
|
rc = pci_read_config_dword(pdev, where,
|
|
&u32val);
|
|
if (!rc) {
|
|
u32val &= ~value;
|
|
pci_write_config_dword(pdev, where,
|
|
u32val);
|
|
}
|
|
}
|
|
}
|
|
} else
|
|
/* All other opecodes are illegal for now */
|
|
goto error_out;
|
|
|
|
return nbytes;
|
|
error_out:
|
|
memset(&idiag, 0, sizeof(idiag));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_queinfo_read - idiag debugfs read queue information
|
|
* @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 the @phba SLI4 PCI function queue information,
|
|
* and copies to user @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_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
|
|
loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
|
|
int len = 0, fcp_qidx;
|
|
char *pbuffer;
|
|
|
|
if (!debug->buffer)
|
|
debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer)
|
|
return 0;
|
|
pbuffer = debug->buffer;
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
/* Get slow-path event queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Slow-path EQ information:\n");
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tEQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
|
|
phba->sli4_hba.sp_eq->queue_id,
|
|
phba->sli4_hba.sp_eq->entry_count,
|
|
phba->sli4_hba.sp_eq->entry_size,
|
|
phba->sli4_hba.sp_eq->host_index,
|
|
phba->sli4_hba.sp_eq->hba_index);
|
|
|
|
/* Get fast-path event queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Fast-path EQ information:\n");
|
|
for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) {
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tEQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
|
|
phba->sli4_hba.fp_eq[fcp_qidx]->queue_id,
|
|
phba->sli4_hba.fp_eq[fcp_qidx]->entry_count,
|
|
phba->sli4_hba.fp_eq[fcp_qidx]->entry_size,
|
|
phba->sli4_hba.fp_eq[fcp_qidx]->host_index,
|
|
phba->sli4_hba.fp_eq[fcp_qidx]->hba_index);
|
|
}
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
|
|
|
|
/* Get mailbox complete queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Slow-path MBX CQ information:\n");
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated EQID[%02d]:\n",
|
|
phba->sli4_hba.mbx_cq->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tCQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
|
|
phba->sli4_hba.mbx_cq->queue_id,
|
|
phba->sli4_hba.mbx_cq->entry_count,
|
|
phba->sli4_hba.mbx_cq->entry_size,
|
|
phba->sli4_hba.mbx_cq->host_index,
|
|
phba->sli4_hba.mbx_cq->hba_index);
|
|
|
|
/* Get slow-path complete queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Slow-path ELS CQ information:\n");
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated EQID[%02d]:\n",
|
|
phba->sli4_hba.els_cq->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tCQID [%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
|
|
phba->sli4_hba.els_cq->queue_id,
|
|
phba->sli4_hba.els_cq->entry_count,
|
|
phba->sli4_hba.els_cq->entry_size,
|
|
phba->sli4_hba.els_cq->host_index,
|
|
phba->sli4_hba.els_cq->hba_index);
|
|
|
|
/* Get fast-path complete queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Fast-path FCP CQ information:\n");
|
|
fcp_qidx = 0;
|
|
do {
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated EQID[%02d]:\n",
|
|
phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tCQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
|
|
phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id,
|
|
phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count,
|
|
phba->sli4_hba.fcp_cq[fcp_qidx]->entry_size,
|
|
phba->sli4_hba.fcp_cq[fcp_qidx]->host_index,
|
|
phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index);
|
|
} while (++fcp_qidx < phba->cfg_fcp_eq_count);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
|
|
|
|
/* Get mailbox queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Slow-path MBX MQ information:\n");
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated CQID[%02d]:\n",
|
|
phba->sli4_hba.mbx_wq->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tWQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
|
|
phba->sli4_hba.mbx_wq->queue_id,
|
|
phba->sli4_hba.mbx_wq->entry_count,
|
|
phba->sli4_hba.mbx_wq->entry_size,
|
|
phba->sli4_hba.mbx_wq->host_index,
|
|
phba->sli4_hba.mbx_wq->hba_index);
|
|
|
|
/* Get slow-path work queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Slow-path ELS WQ information:\n");
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated CQID[%02d]:\n",
|
|
phba->sli4_hba.els_wq->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tWQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
|
|
phba->sli4_hba.els_wq->queue_id,
|
|
phba->sli4_hba.els_wq->entry_count,
|
|
phba->sli4_hba.els_wq->entry_size,
|
|
phba->sli4_hba.els_wq->host_index,
|
|
phba->sli4_hba.els_wq->hba_index);
|
|
|
|
/* Get fast-path work queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Fast-path FCP WQ information:\n");
|
|
for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) {
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated CQID[%02d]:\n",
|
|
phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tWQID[%02d], "
|
|
"QE-COUNT[%04d], WQE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
|
|
phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id,
|
|
phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count,
|
|
phba->sli4_hba.fcp_wq[fcp_qidx]->entry_size,
|
|
phba->sli4_hba.fcp_wq[fcp_qidx]->host_index,
|
|
phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index);
|
|
}
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
|
|
|
|
/* Get receive queue information */
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Slow-path RQ information:\n");
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"Associated CQID[%02d]:\n",
|
|
phba->sli4_hba.hdr_rq->assoc_qid);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tHQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
|
|
phba->sli4_hba.hdr_rq->queue_id,
|
|
phba->sli4_hba.hdr_rq->entry_count,
|
|
phba->sli4_hba.hdr_rq->entry_size,
|
|
phba->sli4_hba.hdr_rq->host_index,
|
|
phba->sli4_hba.hdr_rq->hba_index);
|
|
len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
|
|
"\tDQID[%02d], "
|
|
"QE-COUNT[%04d], QE-SIZE[%04d], "
|
|
"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
|
|
phba->sli4_hba.dat_rq->queue_id,
|
|
phba->sli4_hba.dat_rq->entry_count,
|
|
phba->sli4_hba.dat_rq->entry_size,
|
|
phba->sli4_hba.dat_rq->host_index,
|
|
phba->sli4_hba.dat_rq->hba_index);
|
|
|
|
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_que_param_check - queue access command parameter sanity check
|
|
* @q: The pointer to queue structure.
|
|
* @index: The index into a queue entry.
|
|
* @count: The number of queue entries to access.
|
|
*
|
|
* Description:
|
|
* The routine performs sanity check on device queue access method commands.
|
|
*
|
|
* Returns:
|
|
* This function returns -EINVAL when fails the sanity check, otherwise, it
|
|
* returns 0.
|
|
**/
|
|
static int
|
|
lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
|
|
{
|
|
/* Only support single entry read or browsing */
|
|
if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
|
|
return -EINVAL;
|
|
if (index > q->entry_count - 1)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
|
|
* @pbuffer: The pointer to buffer to copy the read data into.
|
|
* @pque: The pointer to the queue to be read.
|
|
* @index: The index into the queue entry.
|
|
*
|
|
* Description:
|
|
* This routine reads out a single entry from the given queue's index location
|
|
* and copies it into the buffer provided.
|
|
*
|
|
* Returns:
|
|
* This function returns 0 when it fails, otherwise, it returns the length of
|
|
* the data read into the buffer provided.
|
|
**/
|
|
static int
|
|
lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
|
|
uint32_t index)
|
|
{
|
|
int offset, esize;
|
|
uint32_t *pentry;
|
|
|
|
if (!pbuffer || !pque)
|
|
return 0;
|
|
|
|
esize = pque->entry_size;
|
|
len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
|
|
"QE-INDEX[%04d]:\n", index);
|
|
|
|
offset = 0;
|
|
pentry = pque->qe[index].address;
|
|
while (esize > 0) {
|
|
len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
|
|
"%08x ", *pentry);
|
|
pentry++;
|
|
offset += sizeof(uint32_t);
|
|
esize -= sizeof(uint32_t);
|
|
if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
|
|
len += snprintf(pbuffer+len,
|
|
LPFC_QUE_ACC_BUF_SIZE-len, "\n");
|
|
}
|
|
len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
|
|
|
|
return len;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_queacc_read - idiag debugfs read port queue
|
|
* @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 the @phba device queue memory according to the
|
|
* idiag command, and copies to user @buf. Depending on the queue dump read
|
|
* command setup, it does either a single queue entry read or browing through
|
|
* all entries of the queue.
|
|
*
|
|
* 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_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
|
|
loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
uint32_t last_index, index, count;
|
|
struct lpfc_queue *pque = NULL;
|
|
char *pbuffer;
|
|
int len = 0;
|
|
|
|
/* This is a user read operation */
|
|
debug->op = LPFC_IDIAG_OP_RD;
|
|
|
|
if (!debug->buffer)
|
|
debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer)
|
|
return 0;
|
|
pbuffer = debug->buffer;
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
|
|
index = idiag.cmd.data[2];
|
|
count = idiag.cmd.data[3];
|
|
pque = (struct lpfc_queue *)idiag.ptr_private;
|
|
} else
|
|
return 0;
|
|
|
|
/* Browse the queue starting from index */
|
|
if (count == LPFC_QUE_ACC_BROWSE)
|
|
goto que_browse;
|
|
|
|
/* Read a single entry from the queue */
|
|
len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
|
|
|
|
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
|
|
|
|
que_browse:
|
|
|
|
/* Browse all entries from the queue */
|
|
last_index = idiag.offset.last_rd;
|
|
index = last_index;
|
|
|
|
while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
|
|
len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
|
|
index++;
|
|
if (index > pque->entry_count - 1)
|
|
break;
|
|
}
|
|
|
|
/* Set up the offset for next portion of pci cfg read */
|
|
if (index > pque->entry_count - 1)
|
|
index = 0;
|
|
idiag.offset.last_rd = index;
|
|
|
|
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
|
|
* @file: The file pointer to read from.
|
|
* @buf: The buffer to copy the user data from.
|
|
* @nbytes: The number of bytes to get.
|
|
* @ppos: The position in the file to start reading from.
|
|
*
|
|
* This routine get the debugfs idiag command struct from user space and then
|
|
* perform the syntax check for port queue read (dump) or write (set) command
|
|
* accordingly. In the case of port queue read command, it sets up the command
|
|
* in the idiag command struct for the following debugfs read operation. In
|
|
* the case of port queue write operation, it executes the write operation
|
|
* into the port queue entry accordingly.
|
|
*
|
|
* It returns the @nbytges passing in from debugfs user space when successful.
|
|
* In case of error conditions, it returns proper error code back to the user
|
|
* space.
|
|
**/
|
|
static ssize_t
|
|
lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
|
|
size_t nbytes, loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
|
|
uint32_t qidx, quetp, queid, index, count, offset, value;
|
|
uint32_t *pentry;
|
|
struct lpfc_queue *pque;
|
|
int rc;
|
|
|
|
/* This is a user write operation */
|
|
debug->op = LPFC_IDIAG_OP_WR;
|
|
|
|
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
/* Get and sanity check on command feilds */
|
|
quetp = idiag.cmd.data[0];
|
|
queid = idiag.cmd.data[1];
|
|
index = idiag.cmd.data[2];
|
|
count = idiag.cmd.data[3];
|
|
offset = idiag.cmd.data[4];
|
|
value = idiag.cmd.data[5];
|
|
|
|
/* Sanity check on command line arguments */
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
|
|
if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
|
|
goto error_out;
|
|
if (count != 1)
|
|
goto error_out;
|
|
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
|
|
if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
|
|
goto error_out;
|
|
} else
|
|
goto error_out;
|
|
|
|
switch (quetp) {
|
|
case LPFC_IDIAG_EQ:
|
|
/* Slow-path event queue */
|
|
if (phba->sli4_hba.sp_eq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.sp_eq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.sp_eq;
|
|
goto pass_check;
|
|
}
|
|
/* Fast-path event queue */
|
|
for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) {
|
|
if (phba->sli4_hba.fp_eq[qidx]->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.fp_eq[qidx],
|
|
index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.fp_eq[qidx];
|
|
goto pass_check;
|
|
}
|
|
}
|
|
goto error_out;
|
|
break;
|
|
case LPFC_IDIAG_CQ:
|
|
/* MBX complete queue */
|
|
if (phba->sli4_hba.mbx_cq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.mbx_cq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.mbx_cq;
|
|
goto pass_check;
|
|
}
|
|
/* ELS complete queue */
|
|
if (phba->sli4_hba.els_cq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.els_cq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.els_cq;
|
|
goto pass_check;
|
|
}
|
|
/* FCP complete queue */
|
|
qidx = 0;
|
|
do {
|
|
if (phba->sli4_hba.fcp_cq[qidx]->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.fcp_cq[qidx],
|
|
index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private =
|
|
phba->sli4_hba.fcp_cq[qidx];
|
|
goto pass_check;
|
|
}
|
|
} while (++qidx < phba->cfg_fcp_eq_count);
|
|
goto error_out;
|
|
break;
|
|
case LPFC_IDIAG_MQ:
|
|
/* MBX work queue */
|
|
if (phba->sli4_hba.mbx_wq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.mbx_wq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.mbx_wq;
|
|
goto pass_check;
|
|
}
|
|
break;
|
|
case LPFC_IDIAG_WQ:
|
|
/* ELS work queue */
|
|
if (phba->sli4_hba.els_wq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.els_wq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.els_wq;
|
|
goto pass_check;
|
|
}
|
|
/* FCP work queue */
|
|
for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) {
|
|
if (phba->sli4_hba.fcp_wq[qidx]->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.fcp_wq[qidx],
|
|
index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private =
|
|
phba->sli4_hba.fcp_wq[qidx];
|
|
goto pass_check;
|
|
}
|
|
}
|
|
goto error_out;
|
|
break;
|
|
case LPFC_IDIAG_RQ:
|
|
/* HDR queue */
|
|
if (phba->sli4_hba.hdr_rq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.hdr_rq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.hdr_rq;
|
|
goto pass_check;
|
|
}
|
|
/* DAT queue */
|
|
if (phba->sli4_hba.dat_rq->queue_id == queid) {
|
|
/* Sanity check */
|
|
rc = lpfc_idiag_que_param_check(
|
|
phba->sli4_hba.dat_rq, index, count);
|
|
if (rc)
|
|
goto error_out;
|
|
idiag.ptr_private = phba->sli4_hba.dat_rq;
|
|
goto pass_check;
|
|
}
|
|
goto error_out;
|
|
break;
|
|
default:
|
|
goto error_out;
|
|
break;
|
|
}
|
|
|
|
pass_check:
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
|
|
if (count == LPFC_QUE_ACC_BROWSE)
|
|
idiag.offset.last_rd = index;
|
|
}
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
|
|
/* Additional sanity checks on write operation */
|
|
pque = (struct lpfc_queue *)idiag.ptr_private;
|
|
if (offset > pque->entry_size/sizeof(uint32_t) - 1)
|
|
goto error_out;
|
|
pentry = pque->qe[index].address;
|
|
pentry += offset;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
|
|
*pentry = value;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
|
|
*pentry |= value;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
|
|
*pentry &= ~value;
|
|
}
|
|
return nbytes;
|
|
|
|
error_out:
|
|
/* Clean out command structure on command error out */
|
|
memset(&idiag, 0, sizeof(idiag));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
|
|
* @phba: The pointer to hba structure.
|
|
* @pbuffer: The pointer to the buffer to copy the data to.
|
|
* @len: The lenght of bytes to copied.
|
|
* @drbregid: The id to doorbell registers.
|
|
*
|
|
* Description:
|
|
* This routine reads a doorbell register and copies its content to the
|
|
* user buffer pointed to by @pbuffer.
|
|
*
|
|
* Returns:
|
|
* This function returns the amount of data that was copied into @pbuffer.
|
|
**/
|
|
static int
|
|
lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
|
|
int len, uint32_t drbregid)
|
|
{
|
|
|
|
if (!pbuffer)
|
|
return 0;
|
|
|
|
switch (drbregid) {
|
|
case LPFC_DRB_EQCQ:
|
|
len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
|
|
"EQCQ-DRB-REG: 0x%08x\n",
|
|
readl(phba->sli4_hba.EQCQDBregaddr));
|
|
break;
|
|
case LPFC_DRB_MQ:
|
|
len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
|
|
"MQ-DRB-REG: 0x%08x\n",
|
|
readl(phba->sli4_hba.MQDBregaddr));
|
|
break;
|
|
case LPFC_DRB_WQ:
|
|
len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
|
|
"WQ-DRB-REG: 0x%08x\n",
|
|
readl(phba->sli4_hba.WQDBregaddr));
|
|
break;
|
|
case LPFC_DRB_RQ:
|
|
len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
|
|
"RQ-DRB-REG: 0x%08x\n",
|
|
readl(phba->sli4_hba.RQDBregaddr));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
|
|
* @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 the @phba device doorbell register according
|
|
* to the idiag command, and copies to user @buf. Depending on the doorbell
|
|
* register read command setup, it does either a single doorbell register
|
|
* read or dump all doorbell registers.
|
|
*
|
|
* 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_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
|
|
loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
|
|
uint32_t drb_reg_id, i;
|
|
char *pbuffer;
|
|
int len = 0;
|
|
|
|
/* This is a user read operation */
|
|
debug->op = LPFC_IDIAG_OP_RD;
|
|
|
|
if (!debug->buffer)
|
|
debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
|
|
if (!debug->buffer)
|
|
return 0;
|
|
pbuffer = debug->buffer;
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
|
|
drb_reg_id = idiag.cmd.data[0];
|
|
else
|
|
return 0;
|
|
|
|
if (drb_reg_id == LPFC_DRB_ACC_ALL)
|
|
for (i = 1; i <= LPFC_DRB_MAX; i++)
|
|
len = lpfc_idiag_drbacc_read_reg(phba,
|
|
pbuffer, len, i);
|
|
else
|
|
len = lpfc_idiag_drbacc_read_reg(phba,
|
|
pbuffer, len, drb_reg_id);
|
|
|
|
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
|
|
}
|
|
|
|
/**
|
|
* lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
|
|
* @file: The file pointer to read from.
|
|
* @buf: The buffer to copy the user data from.
|
|
* @nbytes: The number of bytes to get.
|
|
* @ppos: The position in the file to start reading from.
|
|
*
|
|
* This routine get the debugfs idiag command struct from user space and then
|
|
* perform the syntax check for port doorbell register read (dump) or write
|
|
* (set) command accordingly. In the case of port queue read command, it sets
|
|
* up the command in the idiag command struct for the following debugfs read
|
|
* operation. In the case of port doorbell register write operation, it
|
|
* executes the write operation into the port doorbell register accordingly.
|
|
*
|
|
* It returns the @nbytges passing in from debugfs user space when successful.
|
|
* In case of error conditions, it returns proper error code back to the user
|
|
* space.
|
|
**/
|
|
static ssize_t
|
|
lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
|
|
size_t nbytes, loff_t *ppos)
|
|
{
|
|
struct lpfc_debug *debug = file->private_data;
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
|
|
uint32_t drb_reg_id, value, reg_val;
|
|
void __iomem *drb_reg;
|
|
int rc;
|
|
|
|
/* This is a user write operation */
|
|
debug->op = LPFC_IDIAG_OP_WR;
|
|
|
|
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
/* Sanity check on command line arguments */
|
|
drb_reg_id = idiag.cmd.data[0];
|
|
value = idiag.cmd.data[1];
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
|
|
if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
|
|
goto error_out;
|
|
if (drb_reg_id > LPFC_DRB_MAX)
|
|
goto error_out;
|
|
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
|
|
if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
|
|
goto error_out;
|
|
if ((drb_reg_id > LPFC_DRB_MAX) &&
|
|
(drb_reg_id != LPFC_DRB_ACC_ALL))
|
|
goto error_out;
|
|
} else
|
|
goto error_out;
|
|
|
|
/* Perform the write access operation */
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
|
|
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
|
|
switch (drb_reg_id) {
|
|
case LPFC_DRB_EQCQ:
|
|
drb_reg = phba->sli4_hba.EQCQDBregaddr;
|
|
break;
|
|
case LPFC_DRB_MQ:
|
|
drb_reg = phba->sli4_hba.MQDBregaddr;
|
|
break;
|
|
case LPFC_DRB_WQ:
|
|
drb_reg = phba->sli4_hba.WQDBregaddr;
|
|
break;
|
|
case LPFC_DRB_RQ:
|
|
drb_reg = phba->sli4_hba.RQDBregaddr;
|
|
break;
|
|
default:
|
|
goto error_out;
|
|
}
|
|
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
|
|
reg_val = value;
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
|
|
reg_val = readl(drb_reg);
|
|
reg_val |= value;
|
|
}
|
|
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
|
|
reg_val = readl(drb_reg);
|
|
reg_val &= ~value;
|
|
}
|
|
writel(reg_val, drb_reg);
|
|
readl(drb_reg); /* flush */
|
|
}
|
|
return nbytes;
|
|
|
|
error_out:
|
|
/* Clean out command structure on command error out */
|
|
memset(&idiag, 0, sizeof(idiag));
|
|
return -EINVAL;
|
|
}
|
|
|
|
#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;
|
|
|
|
/*
|
|
* File operations for the iDiag debugfs
|
|
*/
|
|
#undef lpfc_idiag_op_pciCfg
|
|
static const struct file_operations lpfc_idiag_op_pciCfg = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_idiag_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_idiag_pcicfg_read,
|
|
.write = lpfc_idiag_pcicfg_write,
|
|
.release = lpfc_idiag_cmd_release,
|
|
};
|
|
|
|
#undef lpfc_idiag_op_queInfo
|
|
static const struct file_operations lpfc_idiag_op_queInfo = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_idiag_open,
|
|
.read = lpfc_idiag_queinfo_read,
|
|
.release = lpfc_idiag_release,
|
|
};
|
|
|
|
#undef lpfc_idiag_op_queacc
|
|
static const struct file_operations lpfc_idiag_op_queAcc = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_idiag_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_idiag_queacc_read,
|
|
.write = lpfc_idiag_queacc_write,
|
|
.release = lpfc_idiag_cmd_release,
|
|
};
|
|
|
|
#undef lpfc_idiag_op_drbacc
|
|
static const struct file_operations lpfc_idiag_op_drbAcc = {
|
|
.owner = THIS_MODULE,
|
|
.open = lpfc_idiag_open,
|
|
.llseek = lpfc_debugfs_lseek,
|
|
.read = lpfc_idiag_drbacc_read,
|
|
.write = lpfc_idiag_drbacc_write,
|
|
.release = lpfc_idiag_cmd_release,
|
|
};
|
|
|
|
#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 funcX directory for specific HBA PCI function */
|
|
snprintf(name, sizeof(name), "fn%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 */
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
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;
|
|
}
|
|
} else
|
|
phba->debug_dumpHBASlim = NULL;
|
|
|
|
/* Setup dumpHostSlim */
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
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;
|
|
}
|
|
} else
|
|
phba->debug_dumpHBASlim = NULL;
|
|
|
|
/* 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 Can't create debugfs\n");
|
|
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 Can't create debugfs nodelist\n");
|
|
goto debug_failed;
|
|
}
|
|
|
|
/*
|
|
* iDiag debugfs root entry points for SLI4 device only
|
|
*/
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
goto debug_failed;
|
|
|
|
snprintf(name, sizeof(name), "iDiag");
|
|
if (!phba->idiag_root) {
|
|
phba->idiag_root =
|
|
debugfs_create_dir(name, phba->hba_debugfs_root);
|
|
if (!phba->idiag_root) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"2922 Can't create idiag debugfs\n");
|
|
goto debug_failed;
|
|
}
|
|
/* Initialize iDiag data structure */
|
|
memset(&idiag, 0, sizeof(idiag));
|
|
}
|
|
|
|
/* iDiag read PCI config space */
|
|
snprintf(name, sizeof(name), "pciCfg");
|
|
if (!phba->idiag_pci_cfg) {
|
|
phba->idiag_pci_cfg =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
|
|
if (!phba->idiag_pci_cfg) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"2923 Can't create idiag debugfs\n");
|
|
goto debug_failed;
|
|
}
|
|
idiag.offset.last_rd = 0;
|
|
}
|
|
|
|
/* iDiag get PCI function queue information */
|
|
snprintf(name, sizeof(name), "queInfo");
|
|
if (!phba->idiag_que_info) {
|
|
phba->idiag_que_info =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO,
|
|
phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
|
|
if (!phba->idiag_que_info) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"2924 Can't create idiag debugfs\n");
|
|
goto debug_failed;
|
|
}
|
|
}
|
|
|
|
/* iDiag access PCI function queue */
|
|
snprintf(name, sizeof(name), "queAcc");
|
|
if (!phba->idiag_que_acc) {
|
|
phba->idiag_que_acc =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
|
|
if (!phba->idiag_que_acc) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"2926 Can't create idiag debugfs\n");
|
|
goto debug_failed;
|
|
}
|
|
}
|
|
|
|
/* iDiag access PCI function doorbell registers */
|
|
snprintf(name, sizeof(name), "drbAcc");
|
|
if (!phba->idiag_drb_acc) {
|
|
phba->idiag_drb_acc =
|
|
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
|
|
phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
|
|
if (!phba->idiag_drb_acc) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
|
|
"2927 Can't create idiag debugfs\n");
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* iDiag release
|
|
*/
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
if (phba->idiag_drb_acc) {
|
|
/* iDiag drbAcc */
|
|
debugfs_remove(phba->idiag_drb_acc);
|
|
phba->idiag_drb_acc = NULL;
|
|
}
|
|
if (phba->idiag_que_acc) {
|
|
/* iDiag queAcc */
|
|
debugfs_remove(phba->idiag_que_acc);
|
|
phba->idiag_que_acc = NULL;
|
|
}
|
|
if (phba->idiag_que_info) {
|
|
/* iDiag queInfo */
|
|
debugfs_remove(phba->idiag_que_info);
|
|
phba->idiag_que_info = NULL;
|
|
}
|
|
if (phba->idiag_pci_cfg) {
|
|
/* iDiag pciCfg */
|
|
debugfs_remove(phba->idiag_pci_cfg);
|
|
phba->idiag_pci_cfg = NULL;
|
|
}
|
|
|
|
/* Finally remove the iDiag debugfs root */
|
|
if (phba->idiag_root) {
|
|
/* iDiag root */
|
|
debugfs_remove(phba->idiag_root);
|
|
phba->idiag_root = NULL;
|
|
}
|
|
}
|
|
|
|
if (phba->hba_debugfs_root) {
|
|
debugfs_remove(phba->hba_debugfs_root); /* fnX */
|
|
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;
|
|
}
|