James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1 | /******************************************************************* |
| 2 | * This file is part of the Emulex Linux Device Driver for * |
| 3 | * Fibre Channel Host Bus Adapters. * |
James Smart | d8e93df | 2009-05-22 14:53:05 -0400 | [diff] [blame] | 4 | * Copyright (C) 2007-2009 Emulex. All rights reserved. * |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 5 | * EMULEX and SLI are trademarks of Emulex. * |
| 6 | * www.emulex.com * |
| 7 | * * |
| 8 | * This program is free software; you can redistribute it and/or * |
| 9 | * modify it under the terms of version 2 of the GNU General * |
| 10 | * Public License as published by the Free Software Foundation. * |
| 11 | * This program is distributed in the hope that it will be useful. * |
| 12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| 13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| 15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| 16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| 17 | * more details, a copy of which can be found in the file COPYING * |
| 18 | * included with this package. * |
| 19 | *******************************************************************/ |
| 20 | |
| 21 | #include <linux/blkdev.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include <linux/dma-mapping.h> |
| 24 | #include <linux/idr.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/kthread.h> |
| 27 | #include <linux/pci.h> |
| 28 | #include <linux/spinlock.h> |
| 29 | #include <linux/ctype.h> |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 30 | |
| 31 | #include <scsi/scsi.h> |
| 32 | #include <scsi/scsi_device.h> |
| 33 | #include <scsi/scsi_host.h> |
| 34 | #include <scsi/scsi_transport_fc.h> |
| 35 | |
James Smart | da0436e | 2009-05-22 14:51:39 -0400 | [diff] [blame] | 36 | #include "lpfc_hw4.h" |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 37 | #include "lpfc_hw.h" |
| 38 | #include "lpfc_sli.h" |
James Smart | da0436e | 2009-05-22 14:51:39 -0400 | [diff] [blame] | 39 | #include "lpfc_sli4.h" |
James Smart | ea2151b | 2008-09-07 11:52:10 -0400 | [diff] [blame] | 40 | #include "lpfc_nl.h" |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 41 | #include "lpfc_disc.h" |
| 42 | #include "lpfc_scsi.h" |
| 43 | #include "lpfc.h" |
| 44 | #include "lpfc_logmsg.h" |
| 45 | #include "lpfc_crtn.h" |
| 46 | #include "lpfc_vport.h" |
| 47 | #include "lpfc_version.h" |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 48 | #include "lpfc_compat.h" |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 49 | #include "lpfc_debugfs.h" |
| 50 | |
James Smart | 923e4b6 | 2008-12-04 22:40:07 -0500 | [diff] [blame] | 51 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 52 | /* |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 53 | * debugfs interface |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 54 | * |
| 55 | * To access this interface the user should: |
GeunSik Lim | 156f5a7 | 2009-06-02 15:01:37 +0900 | [diff] [blame] | 56 | * # mount -t debugfs none /sys/kernel/debug |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 57 | * |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 58 | * The lpfc debugfs directory hierarchy is: |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 59 | * lpfc/lpfcX/vportY |
| 60 | * where X is the lpfc hba unique_id |
| 61 | * where Y is the vport VPI on that hba |
| 62 | * |
| 63 | * Debugging services available per vport: |
| 64 | * discovery_trace |
| 65 | * This is an ACSII readable file that contains a trace of the last |
| 66 | * lpfc_debugfs_max_disc_trc events that happened on a specific vport. |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 67 | * See lpfc_debugfs.h for different categories of discovery events. |
| 68 | * To enable the discovery trace, the following module parameters must be set: |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 69 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
| 70 | * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for |
| 71 | * EACH vport. X MUST also be a power of 2. |
| 72 | * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in |
| 73 | * lpfc_debugfs.h . |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 74 | * |
| 75 | * slow_ring_trace |
| 76 | * This is an ACSII readable file that contains a trace of the last |
| 77 | * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. |
| 78 | * To enable the slow ring trace, the following module parameters must be set: |
| 79 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
| 80 | * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for |
| 81 | * the HBA. X MUST also be a power of 2. |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 82 | */ |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 83 | static int lpfc_debugfs_enable = 1; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 84 | module_param(lpfc_debugfs_enable, int, 0); |
| 85 | MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); |
| 86 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 87 | /* This MUST be a power of 2 */ |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 88 | static int lpfc_debugfs_max_disc_trc; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 89 | module_param(lpfc_debugfs_max_disc_trc, int, 0); |
| 90 | MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
| 91 | "Set debugfs discovery trace depth"); |
| 92 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 93 | /* This MUST be a power of 2 */ |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 94 | static int lpfc_debugfs_max_slow_ring_trc; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 95 | module_param(lpfc_debugfs_max_slow_ring_trc, int, 0); |
| 96 | MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
| 97 | "Set debugfs slow ring trace depth"); |
| 98 | |
James Smart | a257bf9 | 2009-04-06 18:48:10 -0400 | [diff] [blame] | 99 | static int lpfc_debugfs_mask_disc_trc; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 100 | module_param(lpfc_debugfs_mask_disc_trc, int, 0); |
| 101 | MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
| 102 | "Set debugfs discovery trace mask"); |
| 103 | |
| 104 | #include <linux/debugfs.h> |
| 105 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 106 | /* size of output line, for discovery_trace and slow_ring_trace */ |
| 107 | #define LPFC_DEBUG_TRC_ENTRY_SIZE 100 |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 108 | |
| 109 | /* nodelist output buffer size */ |
| 110 | #define LPFC_NODELIST_SIZE 8192 |
| 111 | #define LPFC_NODELIST_ENTRY_SIZE 120 |
| 112 | |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 113 | /* dumpHBASlim output buffer size */ |
| 114 | #define LPFC_DUMPHBASLIM_SIZE 4096 |
| 115 | |
| 116 | /* dumpHostSlim output buffer size */ |
| 117 | #define LPFC_DUMPHOSTSLIM_SIZE 4096 |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 118 | |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 119 | /* hbqinfo output buffer size */ |
| 120 | #define LPFC_HBQINFO_SIZE 8192 |
| 121 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 122 | struct lpfc_debug { |
| 123 | char *buffer; |
| 124 | int len; |
| 125 | }; |
| 126 | |
James Smart | 311464e | 2007-08-02 11:10:37 -0400 | [diff] [blame] | 127 | static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
| 128 | static unsigned long lpfc_debugfs_start_time = 0L; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 129 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 130 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 131 | * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 132 | * @vport: The vport to gather the log info from. |
| 133 | * @buf: The buffer to dump log into. |
| 134 | * @size: The maximum amount of data to process. |
| 135 | * |
| 136 | * Description: |
| 137 | * This routine gathers the lpfc discovery debugfs data from the @vport and |
| 138 | * dumps it to @buf up to @size number of bytes. It will start at the next entry |
| 139 | * in the log and process the log until the end of the buffer. Then it will |
| 140 | * gather from the beginning of the log and process until the current entry. |
| 141 | * |
| 142 | * Notes: |
| 143 | * Discovery logging will be disabled while while this routine dumps the log. |
| 144 | * |
| 145 | * Return Value: |
| 146 | * This routine returns the amount of bytes that were dumped into @buf and will |
| 147 | * not exceed @size. |
| 148 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 149 | static int |
| 150 | lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) |
| 151 | { |
| 152 | int i, index, len, enable; |
| 153 | uint32_t ms; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 154 | struct lpfc_debugfs_trc *dtp; |
| 155 | char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 156 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 157 | enable = lpfc_debugfs_enable; |
| 158 | lpfc_debugfs_enable = 0; |
| 159 | |
| 160 | len = 0; |
| 161 | index = (atomic_read(&vport->disc_trc_cnt) + 1) & |
| 162 | (lpfc_debugfs_max_disc_trc - 1); |
| 163 | for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { |
| 164 | dtp = vport->disc_trc + i; |
| 165 | if (!dtp->fmt) |
| 166 | continue; |
| 167 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 168 | snprintf(buffer, |
| 169 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 170 | dtp->seq_cnt, ms, dtp->fmt); |
| 171 | len += snprintf(buf+len, size-len, buffer, |
| 172 | dtp->data1, dtp->data2, dtp->data3); |
| 173 | } |
| 174 | for (i = 0; i < index; i++) { |
| 175 | dtp = vport->disc_trc + i; |
| 176 | if (!dtp->fmt) |
| 177 | continue; |
| 178 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 179 | snprintf(buffer, |
| 180 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 181 | dtp->seq_cnt, ms, dtp->fmt); |
| 182 | len += snprintf(buf+len, size-len, buffer, |
| 183 | dtp->data1, dtp->data2, dtp->data3); |
| 184 | } |
| 185 | |
| 186 | lpfc_debugfs_enable = enable; |
| 187 | return len; |
| 188 | } |
| 189 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 190 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 191 | * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 192 | * @phba: The HBA to gather the log info from. |
| 193 | * @buf: The buffer to dump log into. |
| 194 | * @size: The maximum amount of data to process. |
| 195 | * |
| 196 | * Description: |
| 197 | * This routine gathers the lpfc slow ring debugfs data from the @phba and |
| 198 | * dumps it to @buf up to @size number of bytes. It will start at the next entry |
| 199 | * in the log and process the log until the end of the buffer. Then it will |
| 200 | * gather from the beginning of the log and process until the current entry. |
| 201 | * |
| 202 | * Notes: |
| 203 | * Slow ring logging will be disabled while while this routine dumps the log. |
| 204 | * |
| 205 | * Return Value: |
| 206 | * This routine returns the amount of bytes that were dumped into @buf and will |
| 207 | * not exceed @size. |
| 208 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 209 | static int |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 210 | lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) |
| 211 | { |
| 212 | int i, index, len, enable; |
| 213 | uint32_t ms; |
| 214 | struct lpfc_debugfs_trc *dtp; |
| 215 | char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; |
| 216 | |
| 217 | |
| 218 | enable = lpfc_debugfs_enable; |
| 219 | lpfc_debugfs_enable = 0; |
| 220 | |
| 221 | len = 0; |
| 222 | index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & |
| 223 | (lpfc_debugfs_max_slow_ring_trc - 1); |
| 224 | for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { |
| 225 | dtp = phba->slow_ring_trc + i; |
| 226 | if (!dtp->fmt) |
| 227 | continue; |
| 228 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
| 229 | snprintf(buffer, |
| 230 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
| 231 | dtp->seq_cnt, ms, dtp->fmt); |
| 232 | len += snprintf(buf+len, size-len, buffer, |
| 233 | dtp->data1, dtp->data2, dtp->data3); |
| 234 | } |
| 235 | for (i = 0; i < index; i++) { |
| 236 | dtp = phba->slow_ring_trc + i; |
| 237 | if (!dtp->fmt) |
| 238 | continue; |
| 239 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
| 240 | snprintf(buffer, |
| 241 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
| 242 | dtp->seq_cnt, ms, dtp->fmt); |
| 243 | len += snprintf(buf+len, size-len, buffer, |
| 244 | dtp->data1, dtp->data2, dtp->data3); |
| 245 | } |
| 246 | |
| 247 | lpfc_debugfs_enable = enable; |
| 248 | return len; |
| 249 | } |
| 250 | |
James Smart | 311464e | 2007-08-02 11:10:37 -0400 | [diff] [blame] | 251 | static int lpfc_debugfs_last_hbq = -1; |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 252 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 253 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 254 | * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 255 | * @phba: The HBA to gather host buffer info from. |
| 256 | * @buf: The buffer to dump log into. |
| 257 | * @size: The maximum amount of data to process. |
| 258 | * |
| 259 | * Description: |
| 260 | * This routine dumps the host buffer queue info from the @phba to @buf up to |
| 261 | * @size number of bytes. A header that describes the current hbq state will be |
| 262 | * dumped to @buf first and then info on each hbq entry will be dumped to @buf |
| 263 | * until @size bytes have been dumped or all the hbq info has been dumped. |
| 264 | * |
| 265 | * Notes: |
| 266 | * This routine will rotate through each configured HBQ each time called. |
| 267 | * |
| 268 | * Return Value: |
| 269 | * This routine returns the amount of bytes that were dumped into @buf and will |
| 270 | * not exceed @size. |
| 271 | **/ |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 272 | static int |
| 273 | lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) |
| 274 | { |
| 275 | int len = 0; |
| 276 | int cnt, i, j, found, posted, low; |
| 277 | uint32_t phys, raw_index, getidx; |
| 278 | struct lpfc_hbq_init *hip; |
| 279 | struct hbq_s *hbqs; |
| 280 | struct lpfc_hbq_entry *hbqe; |
| 281 | struct lpfc_dmabuf *d_buf; |
| 282 | struct hbq_dmabuf *hbq_buf; |
| 283 | |
James Smart | 3772a99 | 2009-05-22 14:50:54 -0400 | [diff] [blame] | 284 | if (phba->sli_rev != 3) |
| 285 | return 0; |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 286 | cnt = LPFC_HBQINFO_SIZE; |
| 287 | spin_lock_irq(&phba->hbalock); |
| 288 | |
| 289 | /* toggle between multiple hbqs, if any */ |
| 290 | i = lpfc_sli_hbq_count(); |
| 291 | if (i > 1) { |
| 292 | lpfc_debugfs_last_hbq++; |
| 293 | if (lpfc_debugfs_last_hbq >= i) |
| 294 | lpfc_debugfs_last_hbq = 0; |
| 295 | } |
| 296 | else |
| 297 | lpfc_debugfs_last_hbq = 0; |
| 298 | |
| 299 | i = lpfc_debugfs_last_hbq; |
| 300 | |
| 301 | len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); |
| 302 | |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 303 | hbqs = &phba->hbqs[i]; |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 304 | posted = 0; |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 305 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 306 | posted++; |
| 307 | |
| 308 | hip = lpfc_hbq_defs[i]; |
| 309 | len += snprintf(buf+len, size-len, |
| 310 | "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", |
| 311 | hip->hbq_index, hip->profile, hip->rn, |
| 312 | hip->buffer_count, hip->init_count, hip->add_count, posted); |
| 313 | |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 314 | raw_index = phba->hbq_get[i]; |
| 315 | getidx = le32_to_cpu(raw_index); |
| 316 | len += snprintf(buf+len, size-len, |
James Smart | a8adb83 | 2007-10-27 13:37:53 -0400 | [diff] [blame] | 317 | "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", |
| 318 | hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, |
| 319 | hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 320 | |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 321 | hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 322 | for (j=0; j<hbqs->entry_count; j++) { |
| 323 | len += snprintf(buf+len, size-len, |
| 324 | "%03d: %08x %04x %05x ", j, |
James Smart | a8adb83 | 2007-10-27 13:37:53 -0400 | [diff] [blame] | 325 | le32_to_cpu(hbqe->bde.addrLow), |
| 326 | le32_to_cpu(hbqe->bde.tus.w), |
| 327 | le32_to_cpu(hbqe->buffer_tag)); |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 328 | i = 0; |
| 329 | found = 0; |
| 330 | |
| 331 | /* First calculate if slot has an associated posted buffer */ |
| 332 | low = hbqs->hbqPutIdx - posted; |
| 333 | if (low >= 0) { |
| 334 | if ((j >= hbqs->hbqPutIdx) || (j < low)) { |
| 335 | len += snprintf(buf+len, size-len, "Unused\n"); |
| 336 | goto skipit; |
| 337 | } |
| 338 | } |
| 339 | else { |
| 340 | if ((j >= hbqs->hbqPutIdx) && |
| 341 | (j < (hbqs->entry_count+low))) { |
| 342 | len += snprintf(buf+len, size-len, "Unused\n"); |
| 343 | goto skipit; |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | /* Get the Buffer info for the posted buffer */ |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 348 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 349 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
| 350 | phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); |
James Smart | a8adb83 | 2007-10-27 13:37:53 -0400 | [diff] [blame] | 351 | if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 352 | len += snprintf(buf+len, size-len, |
| 353 | "Buf%d: %p %06x\n", i, |
| 354 | hbq_buf->dbuf.virt, hbq_buf->tag); |
| 355 | found = 1; |
| 356 | break; |
| 357 | } |
| 358 | i++; |
| 359 | } |
| 360 | if (!found) { |
| 361 | len += snprintf(buf+len, size-len, "No DMAinfo?\n"); |
| 362 | } |
| 363 | skipit: |
| 364 | hbqe++; |
| 365 | if (len > LPFC_HBQINFO_SIZE - 54) |
| 366 | break; |
| 367 | } |
| 368 | spin_unlock_irq(&phba->hbalock); |
| 369 | return len; |
| 370 | } |
| 371 | |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 372 | static int lpfc_debugfs_last_hba_slim_off; |
| 373 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 374 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 375 | * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 376 | * @phba: The HBA to gather SLIM info from. |
| 377 | * @buf: The buffer to dump log into. |
| 378 | * @size: The maximum amount of data to process. |
| 379 | * |
| 380 | * Description: |
| 381 | * This routine dumps the current contents of HBA SLIM for the HBA associated |
| 382 | * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. |
| 383 | * |
| 384 | * Notes: |
| 385 | * This routine will only dump up to 1024 bytes of data each time called and |
| 386 | * should be called multiple times to dump the entire HBA SLIM. |
| 387 | * |
| 388 | * Return Value: |
| 389 | * This routine returns the amount of bytes that were dumped into @buf and will |
| 390 | * not exceed @size. |
| 391 | **/ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 392 | static int |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 393 | lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 394 | { |
| 395 | int len = 0; |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 396 | int i, off; |
| 397 | uint32_t *ptr; |
| 398 | char buffer[1024]; |
| 399 | |
| 400 | off = 0; |
| 401 | spin_lock_irq(&phba->hbalock); |
| 402 | |
| 403 | len += snprintf(buf+len, size-len, "HBA SLIM\n"); |
| 404 | lpfc_memcpy_from_slim(buffer, |
James Smart | a257bf9 | 2009-04-06 18:48:10 -0400 | [diff] [blame] | 405 | phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 406 | |
| 407 | ptr = (uint32_t *)&buffer[0]; |
| 408 | off = lpfc_debugfs_last_hba_slim_off; |
| 409 | |
| 410 | /* Set it up for the next time */ |
| 411 | lpfc_debugfs_last_hba_slim_off += 1024; |
| 412 | if (lpfc_debugfs_last_hba_slim_off >= 4096) |
| 413 | lpfc_debugfs_last_hba_slim_off = 0; |
| 414 | |
| 415 | i = 1024; |
| 416 | while (i > 0) { |
| 417 | len += snprintf(buf+len, size-len, |
| 418 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
| 419 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
| 420 | *(ptr+5), *(ptr+6), *(ptr+7)); |
| 421 | ptr += 8; |
| 422 | i -= (8 * sizeof(uint32_t)); |
| 423 | off += (8 * sizeof(uint32_t)); |
| 424 | } |
| 425 | |
| 426 | spin_unlock_irq(&phba->hbalock); |
| 427 | return len; |
| 428 | } |
| 429 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 430 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 431 | * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 432 | * @phba: The HBA to gather Host SLIM info from. |
| 433 | * @buf: The buffer to dump log into. |
| 434 | * @size: The maximum amount of data to process. |
| 435 | * |
| 436 | * Description: |
| 437 | * This routine dumps the current contents of host SLIM for the host associated |
| 438 | * with @phba to @buf up to @size bytes of data. The dump will contain the |
| 439 | * Mailbox, PCB, Rings, and Registers that are located in host memory. |
| 440 | * |
| 441 | * Return Value: |
| 442 | * This routine returns the amount of bytes that were dumped into @buf and will |
| 443 | * not exceed @size. |
| 444 | **/ |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 445 | static int |
| 446 | lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
| 447 | { |
| 448 | int len = 0; |
| 449 | int i, off; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 450 | uint32_t word0, word1, word2, word3; |
| 451 | uint32_t *ptr; |
| 452 | struct lpfc_pgp *pgpp; |
| 453 | struct lpfc_sli *psli = &phba->sli; |
| 454 | struct lpfc_sli_ring *pring; |
| 455 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 456 | off = 0; |
| 457 | spin_lock_irq(&phba->hbalock); |
| 458 | |
| 459 | len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); |
James Smart | 34b02dc | 2008-08-24 21:49:55 -0400 | [diff] [blame] | 460 | ptr = (uint32_t *)phba->slim2p.virt; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 461 | i = sizeof(MAILBOX_t); |
| 462 | while (i > 0) { |
| 463 | len += snprintf(buf+len, size-len, |
| 464 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
| 465 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
| 466 | *(ptr+5), *(ptr+6), *(ptr+7)); |
| 467 | ptr += 8; |
| 468 | i -= (8 * sizeof(uint32_t)); |
| 469 | off += (8 * sizeof(uint32_t)); |
| 470 | } |
| 471 | |
| 472 | len += snprintf(buf+len, size-len, "SLIM PCB\n"); |
James Smart | 34b02dc | 2008-08-24 21:49:55 -0400 | [diff] [blame] | 473 | ptr = (uint32_t *)phba->pcb; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 474 | i = sizeof(PCB_t); |
| 475 | while (i > 0) { |
| 476 | len += snprintf(buf+len, size-len, |
| 477 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
| 478 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
| 479 | *(ptr+5), *(ptr+6), *(ptr+7)); |
| 480 | ptr += 8; |
| 481 | i -= (8 * sizeof(uint32_t)); |
| 482 | off += (8 * sizeof(uint32_t)); |
| 483 | } |
| 484 | |
James Smart | 34b02dc | 2008-08-24 21:49:55 -0400 | [diff] [blame] | 485 | for (i = 0; i < 4; i++) { |
| 486 | pgpp = &phba->port_gp[i]; |
| 487 | pring = &psli->ring[i]; |
| 488 | len += snprintf(buf+len, size-len, |
| 489 | "Ring %d: CMD GetInx:%d (Max:%d Next:%d " |
| 490 | "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n", |
| 491 | i, pgpp->cmdGetInx, pring->numCiocb, |
| 492 | pring->next_cmdidx, pring->local_getidx, |
| 493 | pring->flag, pgpp->rspPutInx, pring->numRiocb); |
| 494 | } |
James Smart | 3772a99 | 2009-05-22 14:50:54 -0400 | [diff] [blame] | 495 | |
| 496 | if (phba->sli_rev <= LPFC_SLI_REV3) { |
| 497 | word0 = readl(phba->HAregaddr); |
| 498 | word1 = readl(phba->CAregaddr); |
| 499 | word2 = readl(phba->HSregaddr); |
| 500 | word3 = readl(phba->HCregaddr); |
| 501 | len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " |
| 502 | "HC:%08x\n", word0, word1, word2, word3); |
| 503 | } |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 504 | spin_unlock_irq(&phba->hbalock); |
| 505 | return len; |
| 506 | } |
| 507 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 508 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 509 | * lpfc_debugfs_nodelist_data - Dump target node list to a buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 510 | * @vport: The vport to gather target node info from. |
| 511 | * @buf: The buffer to dump log into. |
| 512 | * @size: The maximum amount of data to process. |
| 513 | * |
| 514 | * Description: |
| 515 | * This routine dumps the current target node list associated with @vport to |
| 516 | * @buf up to @size bytes of data. Each node entry in the dump will contain a |
| 517 | * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. |
| 518 | * |
| 519 | * Return Value: |
| 520 | * This routine returns the amount of bytes that were dumped into @buf and will |
| 521 | * not exceed @size. |
| 522 | **/ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 523 | static int |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 524 | lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) |
| 525 | { |
| 526 | int len = 0; |
| 527 | int cnt; |
| 528 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| 529 | struct lpfc_nodelist *ndlp; |
| 530 | unsigned char *statep, *name; |
| 531 | |
| 532 | cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); |
| 533 | |
| 534 | spin_lock_irq(shost->host_lock); |
| 535 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| 536 | if (!cnt) { |
| 537 | len += snprintf(buf+len, size-len, |
| 538 | "Missing Nodelist Entries\n"); |
| 539 | break; |
| 540 | } |
| 541 | cnt--; |
| 542 | switch (ndlp->nlp_state) { |
| 543 | case NLP_STE_UNUSED_NODE: |
| 544 | statep = "UNUSED"; |
| 545 | break; |
| 546 | case NLP_STE_PLOGI_ISSUE: |
| 547 | statep = "PLOGI "; |
| 548 | break; |
| 549 | case NLP_STE_ADISC_ISSUE: |
| 550 | statep = "ADISC "; |
| 551 | break; |
| 552 | case NLP_STE_REG_LOGIN_ISSUE: |
| 553 | statep = "REGLOG"; |
| 554 | break; |
| 555 | case NLP_STE_PRLI_ISSUE: |
| 556 | statep = "PRLI "; |
| 557 | break; |
| 558 | case NLP_STE_UNMAPPED_NODE: |
| 559 | statep = "UNMAP "; |
| 560 | break; |
| 561 | case NLP_STE_MAPPED_NODE: |
| 562 | statep = "MAPPED"; |
| 563 | break; |
| 564 | case NLP_STE_NPR_NODE: |
| 565 | statep = "NPR "; |
| 566 | break; |
| 567 | default: |
| 568 | statep = "UNKNOWN"; |
| 569 | } |
| 570 | len += snprintf(buf+len, size-len, "%s DID:x%06x ", |
| 571 | statep, ndlp->nlp_DID); |
| 572 | name = (unsigned char *)&ndlp->nlp_portname; |
| 573 | len += snprintf(buf+len, size-len, |
| 574 | "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", |
| 575 | *name, *(name+1), *(name+2), *(name+3), |
| 576 | *(name+4), *(name+5), *(name+6), *(name+7)); |
| 577 | name = (unsigned char *)&ndlp->nlp_nodename; |
| 578 | len += snprintf(buf+len, size-len, |
| 579 | "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", |
| 580 | *name, *(name+1), *(name+2), *(name+3), |
| 581 | *(name+4), *(name+5), *(name+6), *(name+7)); |
| 582 | len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ", |
| 583 | ndlp->nlp_rpi, ndlp->nlp_flag); |
| 584 | if (!ndlp->nlp_type) |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 585 | len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 586 | if (ndlp->nlp_type & NLP_FC_NODE) |
| 587 | len += snprintf(buf+len, size-len, "FC_NODE "); |
| 588 | if (ndlp->nlp_type & NLP_FABRIC) |
| 589 | len += snprintf(buf+len, size-len, "FABRIC "); |
| 590 | if (ndlp->nlp_type & NLP_FCP_TARGET) |
| 591 | len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", |
| 592 | ndlp->nlp_sid); |
| 593 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 594 | len += snprintf(buf+len, size-len, "FCP_INITIATOR "); |
James Smart | 58da1ff | 2008-04-07 10:15:56 -0400 | [diff] [blame] | 595 | len += snprintf(buf+len, size-len, "usgmap:%x ", |
| 596 | ndlp->nlp_usg_map); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 597 | len += snprintf(buf+len, size-len, "refcnt:%x", |
| 598 | atomic_read(&ndlp->kref.refcount)); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 599 | len += snprintf(buf+len, size-len, "\n"); |
| 600 | } |
| 601 | spin_unlock_irq(shost->host_lock); |
| 602 | return len; |
| 603 | } |
| 604 | #endif |
| 605 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 606 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 607 | * lpfc_debugfs_disc_trc - Store discovery trace log |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 608 | * @vport: The vport to associate this trace string with for retrieval. |
| 609 | * @mask: Log entry classification. |
| 610 | * @fmt: Format string to be displayed when dumping the log. |
| 611 | * @data1: 1st data parameter to be applied to @fmt. |
| 612 | * @data2: 2nd data parameter to be applied to @fmt. |
| 613 | * @data3: 3rd data parameter to be applied to @fmt. |
| 614 | * |
| 615 | * Description: |
| 616 | * This routine is used by the driver code to add a debugfs log entry to the |
| 617 | * discovery trace buffer associated with @vport. Only entries with a @mask that |
| 618 | * match the current debugfs discovery mask will be saved. Entries that do not |
| 619 | * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like |
| 620 | * printf when displaying the log. |
| 621 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 622 | inline void |
| 623 | lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, |
| 624 | uint32_t data1, uint32_t data2, uint32_t data3) |
| 625 | { |
James Smart | 923e4b6 | 2008-12-04 22:40:07 -0500 | [diff] [blame] | 626 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 627 | struct lpfc_debugfs_trc *dtp; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 628 | int index; |
| 629 | |
| 630 | if (!(lpfc_debugfs_mask_disc_trc & mask)) |
| 631 | return; |
| 632 | |
| 633 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || |
| 634 | !vport || !vport->disc_trc) |
| 635 | return; |
| 636 | |
| 637 | index = atomic_inc_return(&vport->disc_trc_cnt) & |
| 638 | (lpfc_debugfs_max_disc_trc - 1); |
| 639 | dtp = vport->disc_trc + index; |
| 640 | dtp->fmt = fmt; |
| 641 | dtp->data1 = data1; |
| 642 | dtp->data2 = data2; |
| 643 | dtp->data3 = data3; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 644 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
| 645 | dtp->jif = jiffies; |
| 646 | #endif |
| 647 | return; |
| 648 | } |
| 649 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 650 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 651 | * lpfc_debugfs_slow_ring_trc - Store slow ring trace log |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 652 | * @phba: The phba to associate this trace string with for retrieval. |
| 653 | * @fmt: Format string to be displayed when dumping the log. |
| 654 | * @data1: 1st data parameter to be applied to @fmt. |
| 655 | * @data2: 2nd data parameter to be applied to @fmt. |
| 656 | * @data3: 3rd data parameter to be applied to @fmt. |
| 657 | * |
| 658 | * Description: |
| 659 | * This routine is used by the driver code to add a debugfs log entry to the |
| 660 | * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and |
| 661 | * @data3 are used like printf when displaying the log. |
| 662 | **/ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 663 | inline void |
| 664 | lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, |
| 665 | uint32_t data1, uint32_t data2, uint32_t data3) |
| 666 | { |
James Smart | 923e4b6 | 2008-12-04 22:40:07 -0500 | [diff] [blame] | 667 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 668 | struct lpfc_debugfs_trc *dtp; |
| 669 | int index; |
| 670 | |
| 671 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || |
| 672 | !phba || !phba->slow_ring_trc) |
| 673 | return; |
| 674 | |
| 675 | index = atomic_inc_return(&phba->slow_ring_trc_cnt) & |
| 676 | (lpfc_debugfs_max_slow_ring_trc - 1); |
| 677 | dtp = phba->slow_ring_trc + index; |
| 678 | dtp->fmt = fmt; |
| 679 | dtp->data1 = data1; |
| 680 | dtp->data2 = data2; |
| 681 | dtp->data3 = data3; |
| 682 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 683 | dtp->jif = jiffies; |
| 684 | #endif |
| 685 | return; |
| 686 | } |
| 687 | |
James Smart | 923e4b6 | 2008-12-04 22:40:07 -0500 | [diff] [blame] | 688 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 689 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 690 | * lpfc_debugfs_disc_trc_open - Open the discovery trace log |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 691 | * @inode: The inode pointer that contains a vport pointer. |
| 692 | * @file: The file pointer to attach the log output. |
| 693 | * |
| 694 | * Description: |
| 695 | * This routine is the entry point for the debugfs open file operation. It gets |
| 696 | * the vport from the i_private field in @inode, allocates the necessary buffer |
| 697 | * for the log, fills the buffer from the in-memory log for this vport, and then |
| 698 | * returns a pointer to that log in the private_data field in @file. |
| 699 | * |
| 700 | * Returns: |
| 701 | * This function returns zero if successful. On error it will return an negative |
| 702 | * error value. |
| 703 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 704 | static int |
| 705 | lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) |
| 706 | { |
| 707 | struct lpfc_vport *vport = inode->i_private; |
| 708 | struct lpfc_debug *debug; |
| 709 | int size; |
| 710 | int rc = -ENOMEM; |
| 711 | |
| 712 | if (!lpfc_debugfs_max_disc_trc) { |
| 713 | rc = -ENOSPC; |
| 714 | goto out; |
| 715 | } |
| 716 | |
| 717 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 718 | if (!debug) |
| 719 | goto out; |
| 720 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 721 | /* Round to page boundary */ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 722 | size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 723 | size = PAGE_ALIGN(size); |
| 724 | |
| 725 | debug->buffer = kmalloc(size, GFP_KERNEL); |
| 726 | if (!debug->buffer) { |
| 727 | kfree(debug); |
| 728 | goto out; |
| 729 | } |
| 730 | |
| 731 | debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); |
| 732 | file->private_data = debug; |
| 733 | |
| 734 | rc = 0; |
| 735 | out: |
| 736 | return rc; |
| 737 | } |
| 738 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 739 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 740 | * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 741 | * @inode: The inode pointer that contains a vport pointer. |
| 742 | * @file: The file pointer to attach the log output. |
| 743 | * |
| 744 | * Description: |
| 745 | * This routine is the entry point for the debugfs open file operation. It gets |
| 746 | * the vport from the i_private field in @inode, allocates the necessary buffer |
| 747 | * for the log, fills the buffer from the in-memory log for this vport, and then |
| 748 | * returns a pointer to that log in the private_data field in @file. |
| 749 | * |
| 750 | * Returns: |
| 751 | * This function returns zero if successful. On error it will return an negative |
| 752 | * error value. |
| 753 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 754 | static int |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 755 | lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) |
| 756 | { |
| 757 | struct lpfc_hba *phba = inode->i_private; |
| 758 | struct lpfc_debug *debug; |
| 759 | int size; |
| 760 | int rc = -ENOMEM; |
| 761 | |
| 762 | if (!lpfc_debugfs_max_slow_ring_trc) { |
| 763 | rc = -ENOSPC; |
| 764 | goto out; |
| 765 | } |
| 766 | |
| 767 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 768 | if (!debug) |
| 769 | goto out; |
| 770 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 771 | /* Round to page boundary */ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 772 | size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
| 773 | size = PAGE_ALIGN(size); |
| 774 | |
| 775 | debug->buffer = kmalloc(size, GFP_KERNEL); |
| 776 | if (!debug->buffer) { |
| 777 | kfree(debug); |
| 778 | goto out; |
| 779 | } |
| 780 | |
| 781 | debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); |
| 782 | file->private_data = debug; |
| 783 | |
| 784 | rc = 0; |
| 785 | out: |
| 786 | return rc; |
| 787 | } |
| 788 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 789 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 790 | * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 791 | * @inode: The inode pointer that contains a vport pointer. |
| 792 | * @file: The file pointer to attach the log output. |
| 793 | * |
| 794 | * Description: |
| 795 | * This routine is the entry point for the debugfs open file operation. It gets |
| 796 | * the vport from the i_private field in @inode, allocates the necessary buffer |
| 797 | * for the log, fills the buffer from the in-memory log for this vport, and then |
| 798 | * returns a pointer to that log in the private_data field in @file. |
| 799 | * |
| 800 | * Returns: |
| 801 | * This function returns zero if successful. On error it will return an negative |
| 802 | * error value. |
| 803 | **/ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 804 | static int |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 805 | lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) |
| 806 | { |
| 807 | struct lpfc_hba *phba = inode->i_private; |
| 808 | struct lpfc_debug *debug; |
| 809 | int rc = -ENOMEM; |
| 810 | |
| 811 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 812 | if (!debug) |
| 813 | goto out; |
| 814 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 815 | /* Round to page boundary */ |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 816 | debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
| 817 | if (!debug->buffer) { |
| 818 | kfree(debug); |
| 819 | goto out; |
| 820 | } |
| 821 | |
| 822 | debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, |
| 823 | LPFC_HBQINFO_SIZE); |
| 824 | file->private_data = debug; |
| 825 | |
| 826 | rc = 0; |
| 827 | out: |
| 828 | return rc; |
| 829 | } |
| 830 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 831 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 832 | * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 833 | * @inode: The inode pointer that contains a vport pointer. |
| 834 | * @file: The file pointer to attach the log output. |
| 835 | * |
| 836 | * Description: |
| 837 | * This routine is the entry point for the debugfs open file operation. It gets |
| 838 | * the vport from the i_private field in @inode, allocates the necessary buffer |
| 839 | * for the log, fills the buffer from the in-memory log for this vport, and then |
| 840 | * returns a pointer to that log in the private_data field in @file. |
| 841 | * |
| 842 | * Returns: |
| 843 | * This function returns zero if successful. On error it will return an negative |
| 844 | * error value. |
| 845 | **/ |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 846 | static int |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 847 | lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 848 | { |
| 849 | struct lpfc_hba *phba = inode->i_private; |
| 850 | struct lpfc_debug *debug; |
| 851 | int rc = -ENOMEM; |
| 852 | |
| 853 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 854 | if (!debug) |
| 855 | goto out; |
| 856 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 857 | /* Round to page boundary */ |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 858 | debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 859 | if (!debug->buffer) { |
| 860 | kfree(debug); |
| 861 | goto out; |
| 862 | } |
| 863 | |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 864 | debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, |
| 865 | LPFC_DUMPHBASLIM_SIZE); |
| 866 | file->private_data = debug; |
| 867 | |
| 868 | rc = 0; |
| 869 | out: |
| 870 | return rc; |
| 871 | } |
| 872 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 873 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 874 | * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 875 | * @inode: The inode pointer that contains a vport pointer. |
| 876 | * @file: The file pointer to attach the log output. |
| 877 | * |
| 878 | * Description: |
| 879 | * This routine is the entry point for the debugfs open file operation. It gets |
| 880 | * the vport from the i_private field in @inode, allocates the necessary buffer |
| 881 | * for the log, fills the buffer from the in-memory log for this vport, and then |
| 882 | * returns a pointer to that log in the private_data field in @file. |
| 883 | * |
| 884 | * Returns: |
| 885 | * This function returns zero if successful. On error it will return an negative |
| 886 | * error value. |
| 887 | **/ |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 888 | static int |
| 889 | lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) |
| 890 | { |
| 891 | struct lpfc_hba *phba = inode->i_private; |
| 892 | struct lpfc_debug *debug; |
| 893 | int rc = -ENOMEM; |
| 894 | |
| 895 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 896 | if (!debug) |
| 897 | goto out; |
| 898 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 899 | /* Round to page boundary */ |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 900 | debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
| 901 | if (!debug->buffer) { |
| 902 | kfree(debug); |
| 903 | goto out; |
| 904 | } |
| 905 | |
| 906 | debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, |
| 907 | LPFC_DUMPHOSTSLIM_SIZE); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 908 | file->private_data = debug; |
| 909 | |
| 910 | rc = 0; |
| 911 | out: |
| 912 | return rc; |
| 913 | } |
| 914 | |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 915 | static int |
| 916 | lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) |
| 917 | { |
| 918 | struct lpfc_debug *debug; |
| 919 | int rc = -ENOMEM; |
| 920 | |
| 921 | if (!_dump_buf_data) |
| 922 | return -EBUSY; |
| 923 | |
| 924 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 925 | if (!debug) |
| 926 | goto out; |
| 927 | |
| 928 | /* Round to page boundry */ |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 929 | printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n", |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 930 | __func__, _dump_buf_data); |
| 931 | debug->buffer = _dump_buf_data; |
| 932 | if (!debug->buffer) { |
| 933 | kfree(debug); |
| 934 | goto out; |
| 935 | } |
| 936 | |
| 937 | debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; |
| 938 | file->private_data = debug; |
| 939 | |
| 940 | rc = 0; |
| 941 | out: |
| 942 | return rc; |
| 943 | } |
| 944 | |
| 945 | static int |
| 946 | lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) |
| 947 | { |
| 948 | struct lpfc_debug *debug; |
| 949 | int rc = -ENOMEM; |
| 950 | |
| 951 | if (!_dump_buf_dif) |
| 952 | return -EBUSY; |
| 953 | |
| 954 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 955 | if (!debug) |
| 956 | goto out; |
| 957 | |
| 958 | /* Round to page boundry */ |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 959 | printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n", |
| 960 | __func__, _dump_buf_dif, file->f_dentry->d_name.name); |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 961 | debug->buffer = _dump_buf_dif; |
| 962 | if (!debug->buffer) { |
| 963 | kfree(debug); |
| 964 | goto out; |
| 965 | } |
| 966 | |
| 967 | debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; |
| 968 | file->private_data = debug; |
| 969 | |
| 970 | rc = 0; |
| 971 | out: |
| 972 | return rc; |
| 973 | } |
| 974 | |
| 975 | static ssize_t |
| 976 | lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, |
| 977 | size_t nbytes, loff_t *ppos) |
| 978 | { |
| 979 | /* |
| 980 | * The Data/DIF buffers only save one failing IO |
| 981 | * The write op is used as a reset mechanism after an IO has |
| 982 | * already been saved to the next one can be saved |
| 983 | */ |
| 984 | spin_lock(&_dump_buf_lock); |
| 985 | |
| 986 | memset((void *)_dump_buf_data, 0, |
| 987 | ((1 << PAGE_SHIFT) << _dump_buf_data_order)); |
| 988 | memset((void *)_dump_buf_dif, 0, |
| 989 | ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); |
| 990 | |
| 991 | _dump_buf_done = 0; |
| 992 | |
| 993 | spin_unlock(&_dump_buf_lock); |
| 994 | |
| 995 | return nbytes; |
| 996 | } |
| 997 | |
| 998 | |
| 999 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1000 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 1001 | * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1002 | * @inode: The inode pointer that contains a vport pointer. |
| 1003 | * @file: The file pointer to attach the log output. |
| 1004 | * |
| 1005 | * Description: |
| 1006 | * This routine is the entry point for the debugfs open file operation. It gets |
| 1007 | * the vport from the i_private field in @inode, allocates the necessary buffer |
| 1008 | * for the log, fills the buffer from the in-memory log for this vport, and then |
| 1009 | * returns a pointer to that log in the private_data field in @file. |
| 1010 | * |
| 1011 | * Returns: |
| 1012 | * This function returns zero if successful. On error it will return an negative |
| 1013 | * error value. |
| 1014 | **/ |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1015 | static int |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1016 | lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) |
| 1017 | { |
| 1018 | struct lpfc_vport *vport = inode->i_private; |
| 1019 | struct lpfc_debug *debug; |
| 1020 | int rc = -ENOMEM; |
| 1021 | |
| 1022 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| 1023 | if (!debug) |
| 1024 | goto out; |
| 1025 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1026 | /* Round to page boundary */ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1027 | debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
| 1028 | if (!debug->buffer) { |
| 1029 | kfree(debug); |
| 1030 | goto out; |
| 1031 | } |
| 1032 | |
| 1033 | debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, |
| 1034 | LPFC_NODELIST_SIZE); |
| 1035 | file->private_data = debug; |
| 1036 | |
| 1037 | rc = 0; |
| 1038 | out: |
| 1039 | return rc; |
| 1040 | } |
| 1041 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1042 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 1043 | * lpfc_debugfs_lseek - Seek through a debugfs file |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1044 | * @file: The file pointer to seek through. |
| 1045 | * @off: The offset to seek to or the amount to seek by. |
| 1046 | * @whence: Indicates how to seek. |
| 1047 | * |
| 1048 | * Description: |
| 1049 | * This routine is the entry point for the debugfs lseek file operation. The |
| 1050 | * @whence parameter indicates whether @off is the offset to directly seek to, |
| 1051 | * or if it is a value to seek forward or reverse by. This function figures out |
| 1052 | * what the new offset of the debugfs file will be and assigns that value to the |
| 1053 | * f_pos field of @file. |
| 1054 | * |
| 1055 | * Returns: |
| 1056 | * This function returns the new offset if successful and returns a negative |
| 1057 | * error if unable to process the seek. |
| 1058 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1059 | static loff_t |
| 1060 | lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) |
| 1061 | { |
| 1062 | struct lpfc_debug *debug; |
| 1063 | loff_t pos = -1; |
| 1064 | |
| 1065 | debug = file->private_data; |
| 1066 | |
| 1067 | switch (whence) { |
| 1068 | case 0: |
| 1069 | pos = off; |
| 1070 | break; |
| 1071 | case 1: |
| 1072 | pos = file->f_pos + off; |
| 1073 | break; |
| 1074 | case 2: |
| 1075 | pos = debug->len - off; |
| 1076 | } |
| 1077 | return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); |
| 1078 | } |
| 1079 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1080 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 1081 | * lpfc_debugfs_read - Read a debugfs file |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1082 | * @file: The file pointer to read from. |
| 1083 | * @buf: The buffer to copy the data to. |
| 1084 | * @nbytes: The number of bytes to read. |
| 1085 | * @ppos: The position in the file to start reading from. |
| 1086 | * |
| 1087 | * Description: |
| 1088 | * This routine reads data from from the buffer indicated in the private_data |
| 1089 | * field of @file. It will start reading at @ppos and copy up to @nbytes of |
| 1090 | * data to @buf. |
| 1091 | * |
| 1092 | * Returns: |
| 1093 | * This function returns the amount of data that was read (this could be less |
| 1094 | * than @nbytes if the end of the file was reached) or a negative error value. |
| 1095 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1096 | static ssize_t |
| 1097 | lpfc_debugfs_read(struct file *file, char __user *buf, |
| 1098 | size_t nbytes, loff_t *ppos) |
| 1099 | { |
| 1100 | struct lpfc_debug *debug = file->private_data; |
| 1101 | return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, |
| 1102 | debug->len); |
| 1103 | } |
| 1104 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1105 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 1106 | * lpfc_debugfs_release - Release the buffer used to store debugfs file data |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1107 | * @inode: The inode pointer that contains a vport pointer. (unused) |
| 1108 | * @file: The file pointer that contains the buffer to release. |
| 1109 | * |
| 1110 | * Description: |
| 1111 | * This routine frees the buffer that was allocated when the debugfs file was |
| 1112 | * opened. |
| 1113 | * |
| 1114 | * Returns: |
| 1115 | * This function returns zero. |
| 1116 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1117 | static int |
| 1118 | lpfc_debugfs_release(struct inode *inode, struct file *file) |
| 1119 | { |
| 1120 | struct lpfc_debug *debug = file->private_data; |
| 1121 | |
| 1122 | kfree(debug->buffer); |
| 1123 | kfree(debug); |
| 1124 | |
| 1125 | return 0; |
| 1126 | } |
| 1127 | |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 1128 | static int |
| 1129 | lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) |
| 1130 | { |
| 1131 | struct lpfc_debug *debug = file->private_data; |
| 1132 | |
| 1133 | debug->buffer = NULL; |
| 1134 | kfree(debug); |
| 1135 | |
| 1136 | return 0; |
| 1137 | } |
| 1138 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1139 | #undef lpfc_debugfs_op_disc_trc |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1140 | static const struct file_operations lpfc_debugfs_op_disc_trc = { |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1141 | .owner = THIS_MODULE, |
| 1142 | .open = lpfc_debugfs_disc_trc_open, |
| 1143 | .llseek = lpfc_debugfs_lseek, |
| 1144 | .read = lpfc_debugfs_read, |
| 1145 | .release = lpfc_debugfs_release, |
| 1146 | }; |
| 1147 | |
| 1148 | #undef lpfc_debugfs_op_nodelist |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1149 | static const struct file_operations lpfc_debugfs_op_nodelist = { |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1150 | .owner = THIS_MODULE, |
| 1151 | .open = lpfc_debugfs_nodelist_open, |
| 1152 | .llseek = lpfc_debugfs_lseek, |
| 1153 | .read = lpfc_debugfs_read, |
| 1154 | .release = lpfc_debugfs_release, |
| 1155 | }; |
| 1156 | |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 1157 | #undef lpfc_debugfs_op_hbqinfo |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1158 | static const struct file_operations lpfc_debugfs_op_hbqinfo = { |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 1159 | .owner = THIS_MODULE, |
| 1160 | .open = lpfc_debugfs_hbqinfo_open, |
| 1161 | .llseek = lpfc_debugfs_lseek, |
| 1162 | .read = lpfc_debugfs_read, |
| 1163 | .release = lpfc_debugfs_release, |
| 1164 | }; |
| 1165 | |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1166 | #undef lpfc_debugfs_op_dumpHBASlim |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1167 | static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1168 | .owner = THIS_MODULE, |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1169 | .open = lpfc_debugfs_dumpHBASlim_open, |
| 1170 | .llseek = lpfc_debugfs_lseek, |
| 1171 | .read = lpfc_debugfs_read, |
| 1172 | .release = lpfc_debugfs_release, |
| 1173 | }; |
| 1174 | |
| 1175 | #undef lpfc_debugfs_op_dumpHostSlim |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1176 | static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1177 | .owner = THIS_MODULE, |
| 1178 | .open = lpfc_debugfs_dumpHostSlim_open, |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1179 | .llseek = lpfc_debugfs_lseek, |
| 1180 | .read = lpfc_debugfs_read, |
| 1181 | .release = lpfc_debugfs_release, |
| 1182 | }; |
| 1183 | |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 1184 | #undef lpfc_debugfs_op_dumpData |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1185 | static const struct file_operations lpfc_debugfs_op_dumpData = { |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 1186 | .owner = THIS_MODULE, |
| 1187 | .open = lpfc_debugfs_dumpData_open, |
| 1188 | .llseek = lpfc_debugfs_lseek, |
| 1189 | .read = lpfc_debugfs_read, |
| 1190 | .write = lpfc_debugfs_dumpDataDif_write, |
| 1191 | .release = lpfc_debugfs_dumpDataDif_release, |
| 1192 | }; |
| 1193 | |
| 1194 | #undef lpfc_debugfs_op_dumpDif |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1195 | static const struct file_operations lpfc_debugfs_op_dumpDif = { |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 1196 | .owner = THIS_MODULE, |
| 1197 | .open = lpfc_debugfs_dumpDif_open, |
| 1198 | .llseek = lpfc_debugfs_lseek, |
| 1199 | .read = lpfc_debugfs_read, |
| 1200 | .write = lpfc_debugfs_dumpDataDif_write, |
| 1201 | .release = lpfc_debugfs_dumpDataDif_release, |
| 1202 | }; |
| 1203 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1204 | #undef lpfc_debugfs_op_slow_ring_trc |
Jan Engelhardt | 71fa742 | 2009-01-11 10:38:59 +0100 | [diff] [blame] | 1205 | static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1206 | .owner = THIS_MODULE, |
| 1207 | .open = lpfc_debugfs_slow_ring_trc_open, |
| 1208 | .llseek = lpfc_debugfs_lseek, |
| 1209 | .read = lpfc_debugfs_read, |
| 1210 | .release = lpfc_debugfs_release, |
| 1211 | }; |
| 1212 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1213 | static struct dentry *lpfc_debugfs_root = NULL; |
| 1214 | static atomic_t lpfc_debugfs_hba_count; |
| 1215 | #endif |
| 1216 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1217 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 1218 | * lpfc_debugfs_initialize - Initialize debugfs for a vport |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1219 | * @vport: The vport pointer to initialize. |
| 1220 | * |
| 1221 | * Description: |
| 1222 | * When Debugfs is configured this routine sets up the lpfc debugfs file system. |
| 1223 | * If not already created, this routine will create the lpfc directory, and |
| 1224 | * lpfcX directory (for this HBA), and vportX directory for this vport. It will |
| 1225 | * also create each file used to access lpfc specific debugfs information. |
| 1226 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1227 | inline void |
| 1228 | lpfc_debugfs_initialize(struct lpfc_vport *vport) |
| 1229 | { |
James Smart | 923e4b6 | 2008-12-04 22:40:07 -0500 | [diff] [blame] | 1230 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1231 | struct lpfc_hba *phba = vport->phba; |
| 1232 | char name[64]; |
| 1233 | uint32_t num, i; |
| 1234 | |
| 1235 | if (!lpfc_debugfs_enable) |
| 1236 | return; |
| 1237 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1238 | /* Setup lpfc root directory */ |
| 1239 | if (!lpfc_debugfs_root) { |
| 1240 | lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); |
| 1241 | atomic_set(&lpfc_debugfs_hba_count, 0); |
| 1242 | if (!lpfc_debugfs_root) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1243 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1244 | "0408 Cannot create debugfs root\n"); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1245 | goto debug_failed; |
| 1246 | } |
| 1247 | } |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1248 | if (!lpfc_debugfs_start_time) |
| 1249 | lpfc_debugfs_start_time = jiffies; |
| 1250 | |
| 1251 | /* Setup lpfcX directory for specific HBA */ |
| 1252 | snprintf(name, sizeof(name), "lpfc%d", phba->brd_no); |
| 1253 | if (!phba->hba_debugfs_root) { |
| 1254 | phba->hba_debugfs_root = |
| 1255 | debugfs_create_dir(name, lpfc_debugfs_root); |
| 1256 | if (!phba->hba_debugfs_root) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1257 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1258 | "0412 Cannot create debugfs hba\n"); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1259 | goto debug_failed; |
| 1260 | } |
| 1261 | atomic_inc(&lpfc_debugfs_hba_count); |
| 1262 | atomic_set(&phba->debugfs_vport_count, 0); |
| 1263 | |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 1264 | /* Setup hbqinfo */ |
| 1265 | snprintf(name, sizeof(name), "hbqinfo"); |
| 1266 | phba->debug_hbqinfo = |
| 1267 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1268 | phba->hba_debugfs_root, |
| 1269 | phba, &lpfc_debugfs_op_hbqinfo); |
| 1270 | if (!phba->debug_hbqinfo) { |
| 1271 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1272 | "0411 Cannot create debugfs hbqinfo\n"); |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 1273 | goto debug_failed; |
| 1274 | } |
| 1275 | |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1276 | /* Setup dumpHBASlim */ |
| 1277 | snprintf(name, sizeof(name), "dumpHBASlim"); |
| 1278 | phba->debug_dumpHBASlim = |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1279 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1280 | phba->hba_debugfs_root, |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1281 | phba, &lpfc_debugfs_op_dumpHBASlim); |
| 1282 | if (!phba->debug_dumpHBASlim) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1283 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1284 | "0413 Cannot create debugfs dumpHBASlim\n"); |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1285 | goto debug_failed; |
| 1286 | } |
| 1287 | |
| 1288 | /* Setup dumpHostSlim */ |
| 1289 | snprintf(name, sizeof(name), "dumpHostSlim"); |
| 1290 | phba->debug_dumpHostSlim = |
| 1291 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1292 | phba->hba_debugfs_root, |
| 1293 | phba, &lpfc_debugfs_op_dumpHostSlim); |
| 1294 | if (!phba->debug_dumpHostSlim) { |
| 1295 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1296 | "0414 Cannot create debugfs dumpHostSlim\n"); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1297 | goto debug_failed; |
| 1298 | } |
| 1299 | |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 1300 | /* Setup dumpData */ |
| 1301 | snprintf(name, sizeof(name), "dumpData"); |
| 1302 | phba->debug_dumpData = |
| 1303 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1304 | phba->hba_debugfs_root, |
| 1305 | phba, &lpfc_debugfs_op_dumpData); |
| 1306 | if (!phba->debug_dumpData) { |
| 1307 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| 1308 | "0800 Cannot create debugfs dumpData\n"); |
| 1309 | goto debug_failed; |
| 1310 | } |
| 1311 | |
| 1312 | /* Setup dumpDif */ |
| 1313 | snprintf(name, sizeof(name), "dumpDif"); |
| 1314 | phba->debug_dumpDif = |
| 1315 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1316 | phba->hba_debugfs_root, |
| 1317 | phba, &lpfc_debugfs_op_dumpDif); |
| 1318 | if (!phba->debug_dumpDif) { |
| 1319 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| 1320 | "0801 Cannot create debugfs dumpDif\n"); |
| 1321 | goto debug_failed; |
| 1322 | } |
| 1323 | |
| 1324 | |
| 1325 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1326 | /* Setup slow ring trace */ |
| 1327 | if (lpfc_debugfs_max_slow_ring_trc) { |
| 1328 | num = lpfc_debugfs_max_slow_ring_trc - 1; |
| 1329 | if (num & lpfc_debugfs_max_slow_ring_trc) { |
| 1330 | /* Change to be a power of 2 */ |
| 1331 | num = lpfc_debugfs_max_slow_ring_trc; |
| 1332 | i = 0; |
| 1333 | while (num > 1) { |
| 1334 | num = num >> 1; |
| 1335 | i++; |
| 1336 | } |
| 1337 | lpfc_debugfs_max_slow_ring_trc = (1 << i); |
| 1338 | printk(KERN_ERR |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1339 | "lpfc_debugfs_max_disc_trc changed to " |
| 1340 | "%d\n", lpfc_debugfs_max_disc_trc); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1341 | } |
| 1342 | } |
| 1343 | |
| 1344 | |
| 1345 | snprintf(name, sizeof(name), "slow_ring_trace"); |
| 1346 | phba->debug_slow_ring_trc = |
| 1347 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1348 | phba->hba_debugfs_root, |
| 1349 | phba, &lpfc_debugfs_op_slow_ring_trc); |
| 1350 | if (!phba->debug_slow_ring_trc) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1351 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1352 | "0415 Cannot create debugfs " |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1353 | "slow_ring_trace\n"); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1354 | goto debug_failed; |
| 1355 | } |
| 1356 | if (!phba->slow_ring_trc) { |
| 1357 | phba->slow_ring_trc = kmalloc( |
| 1358 | (sizeof(struct lpfc_debugfs_trc) * |
| 1359 | lpfc_debugfs_max_slow_ring_trc), |
| 1360 | GFP_KERNEL); |
| 1361 | if (!phba->slow_ring_trc) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1362 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1363 | "0416 Cannot create debugfs " |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1364 | "slow_ring buffer\n"); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1365 | goto debug_failed; |
| 1366 | } |
| 1367 | atomic_set(&phba->slow_ring_trc_cnt, 0); |
| 1368 | memset(phba->slow_ring_trc, 0, |
| 1369 | (sizeof(struct lpfc_debugfs_trc) * |
| 1370 | lpfc_debugfs_max_slow_ring_trc)); |
| 1371 | } |
| 1372 | } |
| 1373 | |
| 1374 | snprintf(name, sizeof(name), "vport%d", vport->vpi); |
| 1375 | if (!vport->vport_debugfs_root) { |
| 1376 | vport->vport_debugfs_root = |
| 1377 | debugfs_create_dir(name, phba->hba_debugfs_root); |
| 1378 | if (!vport->vport_debugfs_root) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1379 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 1380 | "0417 Cant create debugfs\n"); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1381 | goto debug_failed; |
| 1382 | } |
| 1383 | atomic_inc(&phba->debugfs_vport_count); |
| 1384 | } |
| 1385 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1386 | if (lpfc_debugfs_max_disc_trc) { |
| 1387 | num = lpfc_debugfs_max_disc_trc - 1; |
| 1388 | if (num & lpfc_debugfs_max_disc_trc) { |
| 1389 | /* Change to be a power of 2 */ |
| 1390 | num = lpfc_debugfs_max_disc_trc; |
| 1391 | i = 0; |
| 1392 | while (num > 1) { |
| 1393 | num = num >> 1; |
| 1394 | i++; |
| 1395 | } |
| 1396 | lpfc_debugfs_max_disc_trc = (1 << i); |
| 1397 | printk(KERN_ERR |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1398 | "lpfc_debugfs_max_disc_trc changed to %d\n", |
| 1399 | lpfc_debugfs_max_disc_trc); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1400 | } |
| 1401 | } |
| 1402 | |
Adrian Bunk | ff86ba5 | 2007-10-18 12:52:37 +0200 | [diff] [blame] | 1403 | vport->disc_trc = kzalloc( |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1404 | (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1405 | GFP_KERNEL); |
| 1406 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1407 | if (!vport->disc_trc) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1408 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1409 | "0418 Cannot create debugfs disc trace " |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1410 | "buffer\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1411 | goto debug_failed; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1412 | } |
| 1413 | atomic_set(&vport->disc_trc_cnt, 0); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1414 | |
| 1415 | snprintf(name, sizeof(name), "discovery_trace"); |
| 1416 | vport->debug_disc_trc = |
| 1417 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1418 | vport->vport_debugfs_root, |
| 1419 | vport, &lpfc_debugfs_op_disc_trc); |
| 1420 | if (!vport->debug_disc_trc) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1421 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 1422 | "0419 Cannot create debugfs " |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1423 | "discovery_trace\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1424 | goto debug_failed; |
| 1425 | } |
| 1426 | snprintf(name, sizeof(name), "nodelist"); |
| 1427 | vport->debug_nodelist = |
| 1428 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| 1429 | vport->vport_debugfs_root, |
| 1430 | vport, &lpfc_debugfs_op_nodelist); |
| 1431 | if (!vport->debug_nodelist) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 1432 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 1433 | "0409 Cant create debugfs nodelist\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1434 | goto debug_failed; |
| 1435 | } |
| 1436 | debug_failed: |
| 1437 | return; |
| 1438 | #endif |
| 1439 | } |
| 1440 | |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1441 | /** |
James Smart | 3621a71 | 2009-04-06 18:47:14 -0400 | [diff] [blame] | 1442 | * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport |
James Smart | e59058c | 2008-08-24 21:49:00 -0400 | [diff] [blame] | 1443 | * @vport: The vport pointer to remove from debugfs. |
| 1444 | * |
| 1445 | * Description: |
| 1446 | * When Debugfs is configured this routine removes debugfs file system elements |
| 1447 | * that are specific to this vport. It also checks to see if there are any |
| 1448 | * users left for the debugfs directories associated with the HBA and driver. If |
| 1449 | * this is the last user of the HBA directory or driver directory then it will |
| 1450 | * remove those from the debugfs infrastructure as well. |
| 1451 | **/ |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1452 | inline void |
| 1453 | lpfc_debugfs_terminate(struct lpfc_vport *vport) |
| 1454 | { |
James Smart | 923e4b6 | 2008-12-04 22:40:07 -0500 | [diff] [blame] | 1455 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1456 | struct lpfc_hba *phba = vport->phba; |
| 1457 | |
| 1458 | if (vport->disc_trc) { |
| 1459 | kfree(vport->disc_trc); |
| 1460 | vport->disc_trc = NULL; |
| 1461 | } |
| 1462 | if (vport->debug_disc_trc) { |
| 1463 | debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ |
| 1464 | vport->debug_disc_trc = NULL; |
| 1465 | } |
| 1466 | if (vport->debug_nodelist) { |
| 1467 | debugfs_remove(vport->debug_nodelist); /* nodelist */ |
| 1468 | vport->debug_nodelist = NULL; |
| 1469 | } |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1470 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1471 | if (vport->vport_debugfs_root) { |
| 1472 | debugfs_remove(vport->vport_debugfs_root); /* vportX */ |
| 1473 | vport->vport_debugfs_root = NULL; |
| 1474 | atomic_dec(&phba->debugfs_vport_count); |
| 1475 | } |
| 1476 | if (atomic_read(&phba->debugfs_vport_count) == 0) { |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1477 | |
James Smart | 78b2d85 | 2007-08-02 11:10:21 -0400 | [diff] [blame] | 1478 | if (phba->debug_hbqinfo) { |
| 1479 | debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ |
| 1480 | phba->debug_hbqinfo = NULL; |
| 1481 | } |
James Smart | c95d6c6 | 2008-01-11 01:53:23 -0500 | [diff] [blame] | 1482 | if (phba->debug_dumpHBASlim) { |
| 1483 | debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ |
| 1484 | phba->debug_dumpHBASlim = NULL; |
| 1485 | } |
| 1486 | if (phba->debug_dumpHostSlim) { |
| 1487 | debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ |
| 1488 | phba->debug_dumpHostSlim = NULL; |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1489 | } |
James Smart | e2a0a9d | 2008-12-04 22:40:02 -0500 | [diff] [blame] | 1490 | if (phba->debug_dumpData) { |
| 1491 | debugfs_remove(phba->debug_dumpData); /* dumpData */ |
| 1492 | phba->debug_dumpData = NULL; |
| 1493 | } |
| 1494 | |
| 1495 | if (phba->debug_dumpDif) { |
| 1496 | debugfs_remove(phba->debug_dumpDif); /* dumpDif */ |
| 1497 | phba->debug_dumpDif = NULL; |
| 1498 | } |
| 1499 | |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1500 | if (phba->slow_ring_trc) { |
| 1501 | kfree(phba->slow_ring_trc); |
| 1502 | phba->slow_ring_trc = NULL; |
| 1503 | } |
| 1504 | if (phba->debug_slow_ring_trc) { |
| 1505 | /* slow_ring_trace */ |
| 1506 | debugfs_remove(phba->debug_slow_ring_trc); |
| 1507 | phba->debug_slow_ring_trc = NULL; |
| 1508 | } |
| 1509 | |
| 1510 | if (phba->hba_debugfs_root) { |
| 1511 | debugfs_remove(phba->hba_debugfs_root); /* lpfcX */ |
| 1512 | phba->hba_debugfs_root = NULL; |
| 1513 | atomic_dec(&lpfc_debugfs_hba_count); |
| 1514 | } |
| 1515 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1516 | if (atomic_read(&lpfc_debugfs_hba_count) == 0) { |
| 1517 | debugfs_remove(lpfc_debugfs_root); /* lpfc */ |
| 1518 | lpfc_debugfs_root = NULL; |
| 1519 | } |
| 1520 | } |
| 1521 | #endif |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 1522 | return; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 1523 | } |