/*******************************************************************
* 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) 2007-2009 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/ctype.h>
-#include <linux/version.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
+#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_version.h"
-#include "lpfc_vport.h"
+#include "lpfc_compat.h"
#include "lpfc_debugfs.h"
-#ifdef CONFIG_LPFC_DEBUG_FS
-/* debugfs interface
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+/*
+ * debugfs interface
*
* To access this interface the user should:
- * # mkdir /debug
- * # mount -t debugfs none /debug
+ * # mount -t debugfs none /sys/kernel/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
* 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 = 0;
+static int lpfc_debugfs_enable = 1;
module_param(lpfc_debugfs_enable, int, 0);
MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
/* This MUST be a power of 2 */
-static int lpfc_debugfs_max_disc_trc = 0;
+static int lpfc_debugfs_max_disc_trc;
module_param(lpfc_debugfs_max_disc_trc, int, 0);
MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
"Set debugfs discovery trace depth");
/* This MUST be a power of 2 */
-static int lpfc_debugfs_max_slow_ring_trc = 0;
+static int lpfc_debugfs_max_slow_ring_trc;
module_param(lpfc_debugfs_max_slow_ring_trc, int, 0);
MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
"Set debugfs slow ring trace depth");
-static int lpfc_debugfs_mask_disc_trc = 0;
+static int lpfc_debugfs_mask_disc_trc;
module_param(lpfc_debugfs_mask_disc_trc, int, 0);
MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
"Set debugfs discovery trace mask");
#define LPFC_NODELIST_SIZE 8192
#define LPFC_NODELIST_ENTRY_SIZE 120
-/* dump_slim output buffer size */
-#define LPFC_DUMPSLIM_SIZE 4096
+/* dumpHBASlim output buffer size */
+#define LPFC_DUMPHBASLIM_SIZE 4096
+
+/* dumpHostSlim output buffer size */
+#define LPFC_DUMPHOSTSLIM_SIZE 4096
+
+/* hbqinfo output buffer size */
+#define LPFC_HBQINFO_SIZE 8192
struct lpfc_debug {
char *buffer;
int len;
};
-atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
-unsigned long lpfc_debugfs_start_time = 0L;
+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)
{
struct lpfc_debugfs_trc *dtp;
char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
-
enable = lpfc_debugfs_enable;
lpfc_debugfs_enable = 0;
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)
{
return len;
}
+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)
+{
+ int len = 0;
+ int cnt, i, j, found, posted, low;
+ uint32_t phys, raw_index, getidx;
+ struct lpfc_hbq_init *hip;
+ struct hbq_s *hbqs;
+ struct lpfc_hbq_entry *hbqe;
+ struct lpfc_dmabuf *d_buf;
+ struct hbq_dmabuf *hbq_buf;
+
+ if (phba->sli_rev != 3)
+ return 0;
+ cnt = LPFC_HBQINFO_SIZE;
+ spin_lock_irq(&phba->hbalock);
+
+ /* toggle between multiple hbqs, if any */
+ i = lpfc_sli_hbq_count();
+ if (i > 1) {
+ lpfc_debugfs_last_hbq++;
+ if (lpfc_debugfs_last_hbq >= i)
+ lpfc_debugfs_last_hbq = 0;
+ }
+ else
+ lpfc_debugfs_last_hbq = 0;
+
+ i = lpfc_debugfs_last_hbq;
+
+ len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
+
+ hbqs = &phba->hbqs[i];
+ posted = 0;
+ list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
+ posted++;
+
+ hip = lpfc_hbq_defs[i];
+ len += snprintf(buf+len, size-len,
+ "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
+ hip->hbq_index, hip->profile, hip->rn,
+ hip->buffer_count, hip->init_count, hip->add_count, posted);
+
+ raw_index = phba->hbq_get[i];
+ getidx = le32_to_cpu(raw_index);
+ len += snprintf(buf+len, size-len,
+ "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
+ hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
+ hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
+
+ hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
+ for (j=0; j<hbqs->entry_count; j++) {
+ len += snprintf(buf+len, size-len,
+ "%03d: %08x %04x %05x ", j,
+ le32_to_cpu(hbqe->bde.addrLow),
+ le32_to_cpu(hbqe->bde.tus.w),
+ le32_to_cpu(hbqe->buffer_tag));
+ i = 0;
+ found = 0;
+
+ /* First calculate if slot has an associated posted buffer */
+ low = hbqs->hbqPutIdx - posted;
+ if (low >= 0) {
+ if ((j >= hbqs->hbqPutIdx) || (j < low)) {
+ len += snprintf(buf+len, size-len, "Unused\n");
+ goto skipit;
+ }
+ }
+ else {
+ if ((j >= hbqs->hbqPutIdx) &&
+ (j < (hbqs->entry_count+low))) {
+ len += snprintf(buf+len, size-len, "Unused\n");
+ goto skipit;
+ }
+ }
+
+ /* Get the Buffer info for the posted buffer */
+ list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
+ hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
+ phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
+ if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
+ len += snprintf(buf+len, size-len,
+ "Buf%d: %p %06x\n", i,
+ hbq_buf->dbuf.virt, hbq_buf->tag);
+ found = 1;
+ break;
+ }
+ i++;
+ }
+ if (!found) {
+ len += snprintf(buf+len, size-len, "No DMAinfo?\n");
+ }
+skipit:
+ hbqe++;
+ if (len > LPFC_HBQINFO_SIZE - 54)
+ break;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ return len;
+}
+
+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)
+{
+ int len = 0;
+ int i, off;
+ uint32_t *ptr;
+ char buffer[1024];
+
+ off = 0;
+ spin_lock_irq(&phba->hbalock);
+
+ len += snprintf(buf+len, size-len, "HBA SLIM\n");
+ lpfc_memcpy_from_slim(buffer,
+ phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
+
+ ptr = (uint32_t *)&buffer[0];
+ off = lpfc_debugfs_last_hba_slim_off;
+
+ /* Set it up for the next time */
+ lpfc_debugfs_last_hba_slim_off += 1024;
+ if (lpfc_debugfs_last_hba_slim_off >= 4096)
+ lpfc_debugfs_last_hba_slim_off = 0;
+
+ i = 1024;
+ while (i > 0) {
+ len += snprintf(buf+len, size-len,
+ "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+ off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+ *(ptr+5), *(ptr+6), *(ptr+7));
+ ptr += 8;
+ i -= (8 * sizeof(uint32_t));
+ off += (8 * sizeof(uint32_t));
+ }
+
+ spin_unlock_irq(&phba->hbalock);
+ 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_dumpslim_data(struct lpfc_hba *phba, char *buf, int size)
+lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
{
int len = 0;
- int cnt, i, off;
+ int i, off;
uint32_t word0, word1, word2, word3;
uint32_t *ptr;
struct lpfc_pgp *pgpp;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
- cnt = LPFC_DUMPSLIM_SIZE;
off = 0;
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,
}
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,
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;
- word0 = readl(phba->HAregaddr);
- word1 = readl(phba->CAregaddr);
- word2 = readl(phba->HSregaddr);
- word3 = readl(phba->HCregaddr);
- len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x HC:%08x\n",
- word0, word1, word2, word3);
+ for (i = 0; i < 4; i++) {
+ pgpp = &phba->port_gp[i];
+ pring = &psli->ring[i];
+ len += snprintf(buf+len, size-len,
+ "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
+ "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
+ i, pgpp->cmdGetInx, pring->numCiocb,
+ pring->next_cmdidx, pring->local_getidx,
+ pring->flag, pgpp->rspPutInx, pring->numRiocb);
+ }
+
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ word0 = readl(phba->HAregaddr);
+ word1 = readl(phba->CAregaddr);
+ word2 = readl(phba->HSregaddr);
+ word3 = readl(phba->HCregaddr);
+ len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
+ "HC:%08x\n", word0, word1, word2, word3);
+ }
spin_unlock_irq(&phba->hbalock);
return len;
}
+/**
+ * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current target node list associated with @vport to
+ * @buf up to @size bytes of data. Each node entry in the dump will contain a
+ * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
static int
lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
{
ndlp->nlp_sid);
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
+ len += snprintf(buf+len, size-len, "usgmap:%x ",
+ ndlp->nlp_usg_map);
len += snprintf(buf+len, size-len, "refcnt:%x",
atomic_read(&ndlp->kref.refcount));
len += snprintf(buf+len, size-len, "\n");
}
#endif
-
+/**
+ * lpfc_debugfs_disc_trc - Store discovery trace log
+ * @vport: The vport to associate this trace string with for retrieval.
+ * @mask: Log entry classification.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * discovery trace buffer associated with @vport. Only entries with a @mask that
+ * match the current debugfs discovery mask will be saved. Entries that do not
+ * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
+ * printf when displaying the log.
+ **/
inline void
lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
uint32_t data1, uint32_t data2, uint32_t data3)
{
-#ifdef CONFIG_LPFC_DEBUG_FS
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_debugfs_trc *dtp;
int index;
return;
}
+/**
+ * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
+ * @phba: The phba to associate this trace string with for retrieval.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
+ * @data3 are used like printf when displaying the log.
+ **/
inline void
lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
uint32_t data1, uint32_t data2, uint32_t data3)
{
-#ifdef CONFIG_LPFC_DEBUG_FS
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_debugfs_trc *dtp;
int index;
return;
}
-#ifdef CONFIG_LPFC_DEBUG_FS
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+/**
+ * lpfc_debugfs_disc_trc_open - Open the discovery trace log
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
static int
lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
{
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);
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)
{
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);
return rc;
}
+/**
+ * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_hba *phba = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
+ LPFC_HBQINFO_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
static int
-lpfc_debugfs_dumpslim_open(struct inode *inode, struct file *file)
+lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
if (!debug)
goto out;
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
+ LPFC_DUMPHBASLIM_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_hba *phba = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
+ LPFC_DUMPHOSTSLIM_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static int
+lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ if (!_dump_buf_data)
+ return -EBUSY;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundry */
+ printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
+ __func__, _dump_buf_data);
+ debug->buffer = _dump_buf_data;
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static int
+lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ if (!_dump_buf_dif)
+ return -EBUSY;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
/* Round to page boundry */
- debug->buffer = kmalloc(LPFC_DUMPSLIM_SIZE, GFP_KERNEL);
+ printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n",
+ __func__, _dump_buf_dif, file->f_dentry->d_name.name);
+ debug->buffer = _dump_buf_dif;
if (!debug->buffer) {
kfree(debug);
goto out;
}
- debug->len = lpfc_debugfs_dumpslim_data(phba, debug->buffer,
- LPFC_DUMPSLIM_SIZE);
+ debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
file->private_data = debug;
rc = 0;
return rc;
}
+static ssize_t
+lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ /*
+ * The Data/DIF buffers only save one failing IO
+ * The write op is used as a reset mechanism after an IO has
+ * already been saved to the next one can be saved
+ */
+ spin_lock(&_dump_buf_lock);
+
+ memset((void *)_dump_buf_data, 0,
+ ((1 << PAGE_SHIFT) << _dump_buf_data_order));
+ memset((void *)_dump_buf_dif, 0,
+ ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
+
+ _dump_buf_done = 0;
+
+ spin_unlock(&_dump_buf_lock);
+
+ return nbytes;
+}
+
+
+
+/**
+ * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
static int
lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
{
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);
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)
{
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)
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)
{
return 0;
}
+static int
+lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ debug->buffer = NULL;
+ kfree(debug);
+
+ return 0;
+}
+
#undef lpfc_debugfs_op_disc_trc
-static struct file_operations lpfc_debugfs_op_disc_trc = {
+static const struct file_operations lpfc_debugfs_op_disc_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_disc_trc_open,
.llseek = lpfc_debugfs_lseek,
};
#undef lpfc_debugfs_op_nodelist
-static struct file_operations lpfc_debugfs_op_nodelist = {
+static const struct file_operations lpfc_debugfs_op_nodelist = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_nodelist_open,
.llseek = lpfc_debugfs_lseek,
.release = lpfc_debugfs_release,
};
-#undef lpfc_debugfs_op_dumpslim
-static struct file_operations lpfc_debugfs_op_dumpslim = {
+#undef lpfc_debugfs_op_hbqinfo
+static const struct file_operations lpfc_debugfs_op_hbqinfo = {
.owner = THIS_MODULE,
- .open = lpfc_debugfs_dumpslim_open,
+ .open = lpfc_debugfs_hbqinfo_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
+#undef lpfc_debugfs_op_dumpHBASlim
+static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpHBASlim_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dumpHostSlim
+static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpHostSlim_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dumpData
+static const struct file_operations lpfc_debugfs_op_dumpData = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpData_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_dumpDataDif_write,
+ .release = lpfc_debugfs_dumpDataDif_release,
+};
+
+#undef lpfc_debugfs_op_dumpDif
+static const struct file_operations lpfc_debugfs_op_dumpDif = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpDif_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_dumpDataDif_write,
+ .release = lpfc_debugfs_dumpDataDif_release,
+};
+
#undef lpfc_debugfs_op_slow_ring_trc
-static struct file_operations lpfc_debugfs_op_slow_ring_trc = {
+static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_slow_ring_trc_open,
.llseek = lpfc_debugfs_lseek,
static atomic_t lpfc_debugfs_hba_count;
#endif
+/**
+ * lpfc_debugfs_initialize - Initialize debugfs for a vport
+ * @vport: The vport pointer to initialize.
+ *
+ * Description:
+ * When Debugfs is configured this routine sets up the lpfc debugfs file system.
+ * If not already created, this routine will create the lpfc directory, and
+ * lpfcX directory (for this HBA), and vportX directory for this vport. It will
+ * also create each file used to access lpfc specific debugfs information.
+ **/
inline void
lpfc_debugfs_initialize(struct lpfc_vport *vport)
{
-#ifdef CONFIG_LPFC_DEBUG_FS
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_hba *phba = vport->phba;
char name[64];
uint32_t num, i;
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;
}
}
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);
atomic_set(&phba->debugfs_vport_count, 0);
- /* Setup dumpslim */
- snprintf(name, sizeof(name), "dumpslim");
- phba->debug_dumpslim =
+ /* Setup hbqinfo */
+ snprintf(name, sizeof(name), "hbqinfo");
+ phba->debug_hbqinfo =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
- phba, &lpfc_debugfs_op_dumpslim);
- if (!phba->debug_dumpslim) {
+ phba, &lpfc_debugfs_op_hbqinfo);
+ if (!phba->debug_hbqinfo) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
- "0409 Cannot create debugfs dumpslim\n");
+ "0411 Cannot create debugfs hbqinfo\n");
goto debug_failed;
}
+ /* Setup dumpHBASlim */
+ snprintf(name, sizeof(name), "dumpHBASlim");
+ phba->debug_dumpHBASlim =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpHBASlim);
+ if (!phba->debug_dumpHBASlim) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0413 Cannot create debugfs dumpHBASlim\n");
+ goto debug_failed;
+ }
+
+ /* Setup dumpHostSlim */
+ snprintf(name, sizeof(name), "dumpHostSlim");
+ phba->debug_dumpHostSlim =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpHostSlim);
+ if (!phba->debug_dumpHostSlim) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0414 Cannot create debugfs dumpHostSlim\n");
+ goto debug_failed;
+ }
+
+ /* Setup dumpData */
+ snprintf(name, sizeof(name), "dumpData");
+ phba->debug_dumpData =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpData);
+ if (!phba->debug_dumpData) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0800 Cannot create debugfs dumpData\n");
+ goto debug_failed;
+ }
+
+ /* Setup dumpDif */
+ snprintf(name, sizeof(name), "dumpDif");
+ phba->debug_dumpDif =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpDif);
+ if (!phba->debug_dumpDif) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0801 Cannot create debugfs dumpDif\n");
+ goto debug_failed;
+ }
+
+
+
/* Setup slow ring trace */
if (lpfc_debugfs_max_slow_ring_trc) {
num = lpfc_debugfs_max_slow_ring_trc - 1;
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;
}
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;
}
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\n");
goto debug_failed;
}
atomic_inc(&phba->debugfs_vport_count);
}
}
- vport->disc_trc = kmalloc(
+ vport->disc_trc = kzalloc(
(sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
GFP_KERNEL);
if (!vport->disc_trc) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
- "0409 Cannot create debugfs disc trace "
+ "0418 Cannot create debugfs disc trace "
"buffer\n");
goto debug_failed;
}
atomic_set(&vport->disc_trc_cnt, 0);
- memset(vport->disc_trc, 0,
- (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc));
snprintf(name, sizeof(name), "discovery_trace");
vport->debug_disc_trc =
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;
}
vport, &lpfc_debugfs_op_nodelist);
if (!vport->debug_nodelist) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
- "0409 Cant create debugfs nodelist");
+ "0409 Cant create debugfs nodelist\n");
goto debug_failed;
}
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)
{
-#ifdef CONFIG_LPFC_DEBUG_FS
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_hba *phba = vport->phba;
if (vport->disc_trc) {
}
if (atomic_read(&phba->debugfs_vport_count) == 0) {
- if (phba->debug_dumpslim) {
- debugfs_remove(phba->debug_dumpslim); /* dumpslim */
- phba->debug_dumpslim = NULL;
+ if (phba->debug_hbqinfo) {
+ debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
+ phba->debug_hbqinfo = NULL;
}
+ if (phba->debug_dumpHBASlim) {
+ debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
+ phba->debug_dumpHBASlim = NULL;
+ }
+ if (phba->debug_dumpHostSlim) {
+ debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
+ phba->debug_dumpHostSlim = NULL;
+ }
+ if (phba->debug_dumpData) {
+ debugfs_remove(phba->debug_dumpData); /* dumpData */
+ phba->debug_dumpData = NULL;
+ }
+
+ if (phba->debug_dumpDif) {
+ debugfs_remove(phba->debug_dumpDif); /* dumpDif */
+ phba->debug_dumpDif = NULL;
+ }
+
if (phba->slow_ring_trc) {
kfree(phba->slow_ring_trc);
phba->slow_ring_trc = NULL;
#endif
return;
}
-
-
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff