diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_debugfs.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_debugfs.c | 400 |
1 files changed, 333 insertions, 67 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 094b47e94b2..771920bdde4 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2007 Emulex. All rights reserved. * + * Copyright (C) 2007-2008 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * @@ -35,6 +35,7 @@ #include "lpfc_hw.h" #include "lpfc_sli.h" +#include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" @@ -46,13 +47,14 @@ #include "lpfc_debugfs.h" #ifdef CONFIG_LPFC_DEBUG_FS -/* debugfs interface +/** + * debugfs interface * * To access this interface the user should: * # mkdir /debug * # mount -t debugfs none /debug * - * The lpfc debugfs directory hierachy is: + * The lpfc debugfs directory hierarchy is: * lpfc/lpfcX/vportY * where X is the lpfc hba unique_id * where Y is the vport VPI on that hba @@ -61,14 +63,21 @@ * discovery_trace * This is an ACSII readable file that contains a trace of the last * lpfc_debugfs_max_disc_trc events that happened on a specific vport. - * See lpfc_debugfs.h for different categories of - * discovery events. To enable the discovery trace, the following - * module parameters must be set: + * See lpfc_debugfs.h for different categories of discovery events. + * To enable the discovery trace, the following module parameters must be set: * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for * EACH vport. X MUST also be a power of 2. * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in * lpfc_debugfs.h . + * + * slow_ring_trace + * This is an ACSII readable file that contains a trace of the last + * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. + * To enable the slow ring trace, the following module parameters must be set: + * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support + * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for + * the HBA. X MUST also be a power of 2. */ static int lpfc_debugfs_enable = 1; module_param(lpfc_debugfs_enable, int, 0); @@ -117,6 +126,25 @@ struct lpfc_debug { static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); static unsigned long lpfc_debugfs_start_time = 0L; +/** + * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer. + * @vport: The vport to gather the log info from. + * @buf: The buffer to dump log into. + * @size: The maximum amount of data to process. + * + * Description: + * This routine gathers the lpfc discovery debugfs data from the @vport and + * dumps it to @buf up to @size number of bytes. It will start at the next entry + * in the log and process the log until the end of the buffer. Then it will + * gather from the beginning of the log and process until the current entry. + * + * Notes: + * Discovery logging will be disabled while while this routine dumps the log. + * + * Return Value: + * This routine returns the amount of bytes that were dumped into @buf and will + * not exceed @size. + **/ static int lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) { @@ -125,7 +153,6 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) struct lpfc_debugfs_trc *dtp; char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; - enable = lpfc_debugfs_enable; lpfc_debugfs_enable = 0; @@ -159,6 +186,25 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) return len; } +/** + * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer. + * @phba: The HBA to gather the log info from. + * @buf: The buffer to dump log into. + * @size: The maximum amount of data to process. + * + * Description: + * This routine gathers the lpfc slow ring debugfs data from the @phba and + * dumps it to @buf up to @size number of bytes. It will start at the next entry + * in the log and process the log until the end of the buffer. Then it will + * gather from the beginning of the log and process until the current entry. + * + * Notes: + * Slow ring logging will be disabled while while this routine dumps the log. + * + * Return Value: + * This routine returns the amount of bytes that were dumped into @buf and will + * not exceed @size. + **/ static int lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) { @@ -203,6 +249,25 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) static int lpfc_debugfs_last_hbq = -1; +/** + * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer. + * @phba: The HBA to gather host buffer info from. + * @buf: The buffer to dump log into. + * @size: The maximum amount of data to process. + * + * Description: + * This routine dumps the host buffer queue info from the @phba to @buf up to + * @size number of bytes. A header that describes the current hbq state will be + * dumped to @buf first and then info on each hbq entry will be dumped to @buf + * until @size bytes have been dumped or all the hbq info has been dumped. + * + * Notes: + * This routine will rotate through each configured HBQ each time called. + * + * Return Value: + * This routine returns the amount of bytes that were dumped into @buf and will + * not exceed @size. + **/ static int lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) { @@ -303,6 +368,24 @@ skipit: static int lpfc_debugfs_last_hba_slim_off; +/** + * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer. + * @phba: The HBA to gather 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 HBA SLIM for the HBA associated + * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. + * + * Notes: + * This routine will only dump up to 1024 bytes of data each time called and + * should be called multiple times to dump the entire HBA SLIM. + * + * Return Value: + * This routine returns the amount of bytes that were dumped into @buf and will + * not exceed @size. + **/ static int lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) { @@ -342,6 +425,21 @@ lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 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) { @@ -357,7 +455,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) spin_lock_irq(&phba->hbalock); len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); - ptr = (uint32_t *)phba->slim2p; + ptr = (uint32_t *)phba->slim2p.virt; i = sizeof(MAILBOX_t); while (i > 0) { len += snprintf(buf+len, size-len, @@ -370,7 +468,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) } len += snprintf(buf+len, size-len, "SLIM PCB\n"); - ptr = (uint32_t *)&phba->slim2p->pcb; + ptr = (uint32_t *)phba->pcb; i = sizeof(PCB_t); while (i > 0) { len += snprintf(buf+len, size-len, @@ -382,44 +480,16 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) off += (8 * sizeof(uint32_t)); } - pgpp = (struct lpfc_pgp *)&phba->slim2p->mbx.us.s3_pgp.port; - pring = &psli->ring[0]; - len += snprintf(buf+len, size-len, - "Ring 0: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " - "RSP PutInx:%d Max:%d\n", - pgpp->cmdGetInx, pring->numCiocb, - pring->next_cmdidx, pring->local_getidx, pring->flag, - pgpp->rspPutInx, pring->numRiocb); - pgpp++; - - pring = &psli->ring[1]; - len += snprintf(buf+len, size-len, - "Ring 1: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " - "RSP PutInx:%d Max:%d\n", - pgpp->cmdGetInx, pring->numCiocb, - pring->next_cmdidx, pring->local_getidx, pring->flag, - pgpp->rspPutInx, pring->numRiocb); - pgpp++; - - pring = &psli->ring[2]; - len += snprintf(buf+len, size-len, - "Ring 2: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " - "RSP PutInx:%d Max:%d\n", - pgpp->cmdGetInx, pring->numCiocb, - pring->next_cmdidx, pring->local_getidx, pring->flag, - pgpp->rspPutInx, pring->numRiocb); - pgpp++; - - pring = &psli->ring[3]; - len += snprintf(buf+len, size-len, - "Ring 3: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " - "RSP PutInx:%d Max:%d\n", - pgpp->cmdGetInx, pring->numCiocb, - pring->next_cmdidx, pring->local_getidx, pring->flag, - pgpp->rspPutInx, pring->numRiocb); - - - ptr = (uint32_t *)&phba->slim2p->mbx.us.s3_pgp.hbq_get; + 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); + } word0 = readl(phba->HAregaddr); word1 = readl(phba->CAregaddr); word2 = readl(phba->HSregaddr); @@ -430,6 +500,21 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 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) { @@ -513,7 +598,22 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) } #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) @@ -542,6 +642,19 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 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) @@ -568,6 +681,21 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, } #ifdef CONFIG_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) { @@ -585,7 +713,7 @@ lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) if (!debug) goto out; - /* Round to page boundry */ + /* Round to page boundary */ size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); size = PAGE_ALIGN(size); @@ -603,6 +731,21 @@ 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) { @@ -620,7 +763,7 @@ lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) if (!debug) goto out; - /* Round to page boundry */ + /* Round to page boundary */ size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); size = PAGE_ALIGN(size); @@ -638,6 +781,21 @@ 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) { @@ -649,7 +807,7 @@ lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) if (!debug) goto out; - /* Round to page boundry */ + /* Round to page boundary */ debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); if (!debug->buffer) { kfree(debug); @@ -665,6 +823,21 @@ 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) { @@ -676,7 +849,7 @@ lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) if (!debug) goto out; - /* Round to page boundry */ + /* Round to page boundary */ debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); if (!debug->buffer) { kfree(debug); @@ -692,6 +865,21 @@ 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) { @@ -703,7 +891,7 @@ lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) if (!debug) goto out; - /* Round to page boundry */ + /* Round to page boundary */ debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); if (!debug->buffer) { kfree(debug); @@ -719,6 +907,21 @@ out: return rc; } +/** + * 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) { @@ -730,7 +933,7 @@ lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) if (!debug) goto out; - /* Round to page boundry */ + /* Round to page boundary */ debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); if (!debug->buffer) { kfree(debug); @@ -746,6 +949,23 @@ 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) { @@ -767,6 +987,22 @@ lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 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) @@ -776,6 +1012,18 @@ lpfc_debugfs_read(struct file *file, char __user *buf, 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) { @@ -845,6 +1093,16 @@ static struct dentry *lpfc_debugfs_root = NULL; static atomic_t lpfc_debugfs_hba_count; #endif +/** + * lpfc_debugfs_initialize - Initialize debugfs for a vport. + * @vport: The vport pointer to initialize. + * + * Description: + * When Debugfs is configured this routine sets up the lpfc debugfs file system. + * If not already created, this routine will create the lpfc directory, and + * lpfcX directory (for this HBA), and vportX directory for this vport. It will + * also create each file used to access lpfc specific debugfs information. + **/ inline void lpfc_debugfs_initialize(struct lpfc_vport *vport) { @@ -862,7 +1120,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) atomic_set(&lpfc_debugfs_hba_count, 0); if (!lpfc_debugfs_root) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs root\n"); + "0408 Cannot create debugfs root\n"); goto debug_failed; } } @@ -876,7 +1134,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_dir(name, lpfc_debugfs_root); if (!phba->hba_debugfs_root) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs hba\n"); + "0412 Cannot create debugfs hba\n"); goto debug_failed; } atomic_inc(&lpfc_debugfs_hba_count); @@ -890,7 +1148,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) phba, &lpfc_debugfs_op_hbqinfo); if (!phba->debug_hbqinfo) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs hbqinfo\n"); + "0411 Cannot create debugfs hbqinfo\n"); goto debug_failed; } @@ -902,7 +1160,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) phba, &lpfc_debugfs_op_dumpHBASlim); if (!phba->debug_dumpHBASlim) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs dumpHBASlim\n"); + "0413 Cannot create debugfs dumpHBASlim\n"); goto debug_failed; } @@ -914,7 +1172,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) phba, &lpfc_debugfs_op_dumpHostSlim); if (!phba->debug_dumpHostSlim) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs dumpHostSlim\n"); + "0414 Cannot create debugfs dumpHostSlim\n"); goto debug_failed; } @@ -944,7 +1202,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) phba, &lpfc_debugfs_op_slow_ring_trc); if (!phba->debug_slow_ring_trc) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs " + "0415 Cannot create debugfs " "slow_ring_trace\n"); goto debug_failed; } @@ -955,7 +1213,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) GFP_KERNEL); if (!phba->slow_ring_trc) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs " + "0416 Cannot create debugfs " "slow_ring buffer\n"); goto debug_failed; } @@ -972,7 +1230,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_dir(name, phba->hba_debugfs_root); if (!vport->vport_debugfs_root) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cant create debugfs"); + "0417 Cant create debugfs"); goto debug_failed; } atomic_inc(&phba->debugfs_vport_count); @@ -1001,7 +1259,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) if (!vport->disc_trc) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs disc trace " + "0418 Cannot create debugfs disc trace " "buffer\n"); goto debug_failed; } @@ -1014,7 +1272,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) vport, &lpfc_debugfs_op_disc_trc); if (!vport->debug_disc_trc) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0409 Cannot create debugfs " + "0419 Cannot create debugfs " "discovery_trace\n"); goto debug_failed; } @@ -1033,7 +1291,17 @@ debug_failed: #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) { @@ -1096,5 +1364,3 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport) #endif return; } - - |