diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_debugfs.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_debugfs.c | 159 |
1 files changed, 158 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index dc7b858..f334761 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -101,14 +101,20 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, #define LPFC_NODELIST_SIZE 8192 #define LPFC_NODELIST_ENTRY_SIZE 120 -/* dump_slim output buffer size */ +/* dumpslim output buffer size */ #define LPFC_DUMPSLIM_SIZE 4096 +/* hbqinfo output buffer size */ +#define LPFC_HBQINFO_SIZE 8192 + struct lpfc_debug { char *buffer; int len; }; +extern struct lpfc_hbq_init *lpfc_hbq_defs[]; +extern int lpfc_sli_hbq_count(void); + atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); unsigned long lpfc_debugfs_start_time = 0L; @@ -196,6 +202,105 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) return len; } +int lpfc_debugfs_last_hbq = -1; + +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; + + 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); + + posted = 0; + list_for_each_entry(d_buf, &phba->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); + + hbqs = &phba->hbqs[i]; + raw_index = phba->hbq_get[i]; + getidx = le32_to_cpu(raw_index); + len += snprintf(buf+len, size-len, + "entrys:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", + hbqs->entry_count, hbqs->hbqPutIdx, hbqs->next_hbqPutIdx, + hbqs->local_hbqGetIdx, getidx); + + hbqe = (struct lpfc_hbq_entry *) phba->hbqslimp.virt; + for (j=0; j<hbqs->entry_count; j++) { + len += snprintf(buf+len, size-len, + "%03d: %08x %04x %05x ", j, + hbqe->bde.addrLow, hbqe->bde.tus.w, 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, &phba->hbq_buffer_list, list) { + hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); + phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); + if (phys == 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_dumpslim_data(struct lpfc_hba *phba, char *buf, int size) { @@ -492,6 +597,33 @@ out: } 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 boundry */ + 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; +} + +static int lpfc_debugfs_dumpslim_open(struct inode *inode, struct file *file) { struct lpfc_hba *phba = inode->i_private; @@ -604,6 +736,15 @@ static struct file_operations lpfc_debugfs_op_nodelist = { .release = lpfc_debugfs_release, }; +#undef lpfc_debugfs_op_hbqinfo +static struct file_operations lpfc_debugfs_op_hbqinfo = { + .owner = THIS_MODULE, + .open = lpfc_debugfs_hbqinfo_open, + .llseek = lpfc_debugfs_lseek, + .read = lpfc_debugfs_read, + .release = lpfc_debugfs_release, +}; + #undef lpfc_debugfs_op_dumpslim static struct file_operations lpfc_debugfs_op_dumpslim = { .owner = THIS_MODULE, @@ -663,6 +804,18 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) atomic_inc(&lpfc_debugfs_hba_count); atomic_set(&phba->debugfs_vport_count, 0); + /* Setup hbqinfo */ + snprintf(name, sizeof(name), "hbqinfo"); + phba->debug_hbqinfo = + debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, + phba->hba_debugfs_root, + phba, &lpfc_debugfs_op_hbqinfo); + if (!phba->debug_hbqinfo) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0409 Cannot create debugfs hbqinfo\n"); + goto debug_failed; + } + /* Setup dumpslim */ snprintf(name, sizeof(name), "dumpslim"); phba->debug_dumpslim = @@ -819,6 +972,10 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport) } if (atomic_read(&phba->debugfs_vport_count) == 0) { + if (phba->debug_hbqinfo) { + debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ + phba->debug_hbqinfo = NULL; + } if (phba->debug_dumpslim) { debugfs_remove(phba->debug_dumpslim); /* dumpslim */ phba->debug_dumpslim = NULL; |
