-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <libcfs/libcfs.h>
#include "tracefile.h"
-#ifndef get_cpu
-#define get_cpu() smp_processor_id()
-#define put_cpu() do { } while (0)
-#endif
+/* percents to share the total debug memory for each type */
+static unsigned int pages_factor[CFS_TCD_TYPE_MAX] = {
+ 90, /* 90% pages for CFS_TCD_TYPE_PASSIVE */
+ 10 /* 10% pages for CFS_TCD_TYPE_DISPATCH */
+};
-#define TCD_TYPE_MAX 1
+char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
-event_t tracefile_event;
+struct rw_semaphore cfs_tracefile_sem;
-void tracefile_init_arch()
+int cfs_tracefile_init_arch()
{
int i;
int j;
- struct trace_cpu_data *tcd;
-
- cfs_init_event(&tracefile_event, TRUE, TRUE);
-
- /* initialize trace_data */
- memset(trace_data, 0, sizeof(trace_data));
- for (i = 0; i < TCD_TYPE_MAX; i++) {
- trace_data[i]=cfs_alloc(sizeof(struct trace_data_union)*NR_CPUS, 0);
- if (trace_data[i] == NULL)
- goto out;
- }
-
- /* arch related info initialized */
- tcd_for_each(tcd, i, j) {
- tcd->tcd_pages_factor = 100; /* Only one type */
- tcd->tcd_cpu = j;
- tcd->tcd_type = i;
- }
-
- memset(trace_console_buffers, 0, sizeof(trace_console_buffers));
-
- for (i = 0; i < NR_CPUS; i++) {
- for (j = 0; j < 1; j++) {
- trace_console_buffers[i][j] =
- cfs_alloc(TRACE_CONSOLE_BUFFER_SIZE,
- CFS_ALLOC_ZERO);
-
- if (trace_console_buffers[i][j] == NULL)
- goto out;
+ struct cfs_trace_cpu_data *tcd;
+
+ init_rwsem(&cfs_tracefile_sem);
+
+ /* initialize trace_data */
+ memset(cfs_trace_data, 0, sizeof(cfs_trace_data));
+ for (i = 0; i < CFS_TCD_TYPE_MAX; i++) {
+ cfs_trace_data[i] =
+ kmalloc(sizeof(union cfs_trace_data_union) * \
+ NR_CPUS, GFP_KERNEL);
+ if (cfs_trace_data[i] == NULL)
+ goto out;
+ }
+
+ /* arch related info initialized */
+ cfs_tcd_for_each(tcd, i, j) {
+ tcd->tcd_pages_factor = (USHORT) pages_factor[i];
+ tcd->tcd_type = (USHORT) i;
+ tcd->tcd_cpu = (USHORT)j;
+ }
+
+ for (i = 0; i < num_possible_cpus(); i++)
+ for (j = 0; j < CFS_TCD_TYPE_MAX; j++) {
+ cfs_trace_console_buffers[i][j] =
+ kmalloc(CFS_TRACE_CONSOLE_BUFFER_SIZE,
+ GFP_KERNEL);
+
+ if (cfs_trace_console_buffers[i][j] == NULL)
+ goto out;
}
- }
return 0;
out:
- tracefile_fini_arch();
- KsPrint((0, "lnet: No enough memory\n"));
+ cfs_tracefile_fini_arch();
+ printk(CFS_KERN_ERR "lnet: Not enough memory\n");
return -ENOMEM;
+
}
-void tracefile_fini_arch()
+void cfs_tracefile_fini_arch()
{
int i;
int j;
- for (i = 0; i < NR_CPUS; i++) {
- for (j = 0; j < 2; j++) {
- if (trace_console_buffers[i][j] != NULL) {
- cfs_free(trace_console_buffers[i][j]);
- trace_console_buffers[i][j] = NULL;
+ for (i = 0; i < num_possible_cpus(); i++) {
+ for (j = 0; j < CFS_TCD_TYPE_MAX; j++) {
+ if (cfs_trace_console_buffers[i][j] != NULL) {
+ kfree(cfs_trace_console_buffers[i][j]);
+ cfs_trace_console_buffers[i][j] = NULL;
}
- }
- }
-
- for (i = 0; trace_data[i] != NULL; i++) {
- cfs_free(trace_data[i]);
- trace_data[i] = NULL;
- }
-}
+ }
+ }
-void tracefile_read_lock()
-{
- cfs_wait_event(&tracefile_event, 0);
-}
+ for (i = 0; cfs_trace_data[i] != NULL; i++) {
+ kfree(cfs_trace_data[i]);
+ cfs_trace_data[i] = NULL;
+ }
-void tracefile_read_unlock()
-{
- cfs_wake_event(&tracefile_event);
+ fini_rwsem(&cfs_tracefile_sem);
}
-void tracefile_write_lock()
+void cfs_tracefile_read_lock()
{
- cfs_wait_event(&tracefile_event, 0);
+ down_read(&cfs_tracefile_sem);
}
-void tracefile_write_unlock()
+void cfs_tracefile_read_unlock()
{
- cfs_wake_event(&tracefile_event);
+ up_read(&cfs_tracefile_sem);
}
-char *
-trace_get_console_buffer(void)
+void cfs_tracefile_write_lock()
{
-#pragma message ("is there possible problem with pre-emption ?")
- int cpu = (int) KeGetCurrentProcessorNumber();
- return trace_console_buffers[cpu][0];
+ down_write(&cfs_tracefile_sem);
}
-void
-trace_put_console_buffer(char *buffer)
+void cfs_tracefile_write_unlock()
{
+ up_write(&cfs_tracefile_sem);
}
-struct trace_cpu_data *
-trace_get_tcd(void)
+cfs_trace_buf_type_t cfs_trace_buf_idx_get()
{
-#pragma message("todo: return NULL if in interrupt context")
-
- int cpu = (int) KeGetCurrentProcessorNumber();
- return &(*trace_data[0])[cpu].tcd;
+ if (KeGetCurrentIrql() >= DISPATCH_LEVEL)
+ return CFS_TCD_TYPE_DISPATCH;
+ else
+ return CFS_TCD_TYPE_PASSIVE;
}
-void
-trace_put_tcd (struct trace_cpu_data *tcd, unsigned long flags)
+int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd, int walking)
{
+ __LASSERT(tcd->tcd_type < CFS_TCD_TYPE_MAX);
+ return 1;
}
-int
-trace_lock_tcd(struct trace_cpu_data *tcd)
+void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking)
{
- __LASSERT(tcd->tcd_type < TCD_TYPE_MAX);
- return 1;
+ __LASSERT(tcd->tcd_type < CFS_TCD_TYPE_MAX);
}
-void
-trace_unlock_tcd(struct trace_cpu_data *tcd)
+int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
+ struct cfs_trace_page *tage)
{
- __LASSERT(tcd->tcd_type < TCD_TYPE_MAX);
+ /*
+ * XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
+ * from here: this will lead to infinite recursion.
+ */
+ return tcd->tcd_cpu == tage->cpu;
}
void
-set_ptldebug_header(struct ptldebug_header *header, int subsys, int mask,
- const int line, unsigned long stack)
+cfs_set_ptldebug_header(struct ptldebug_header *header, int subsys, int mask,
+ const int line, unsigned long stack)
{
struct timeval tv;
header->ph_subsys = subsys;
header->ph_mask = mask;
header->ph_cpu_id = smp_processor_id();
+ header->ph_type = cfs_trace_buf_idx_get();
header->ph_sec = (__u32)tv.tv_sec;
header->ph_usec = tv.tv_usec;
header->ph_stack = stack;
- header->ph_pid = current->pid;
+ header->ph_pid = (__u32)(ULONG_PTR)current->pid;
header->ph_line_num = line;
header->ph_extern_pid = 0;
return;
}
-void print_to_console(struct ptldebug_header *hdr, int mask, const char *buf,
- int len, const char *file, const char *fn)
+void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
+ const char *buf, int len, const char *file,
+ const char *fn)
{
- char *prefix = NULL, *ptype = NULL;
+ char *prefix = "Lustre", *ptype = NULL;
if ((mask & D_EMERG) != 0) {
prefix = "LustreError";
- ptype = KERN_EMERG;
+ ptype = CFS_KERN_EMERG;
} else if ((mask & D_ERROR) != 0) {
prefix = "LustreError";
- ptype = KERN_ERR;
+ ptype = CFS_KERN_ERR;
} else if ((mask & D_WARNING) != 0) {
prefix = "Lustre";
- ptype = KERN_WARNING;
- } else if ((mask & libcfs_printk) != 0 || (mask & D_CONSOLE)) {
+ ptype = CFS_KERN_WARNING;
+ } else if ((mask & (D_CONSOLE | libcfs_printk)) != 0) {
prefix = "Lustre";
- ptype = KERN_INFO;
+ ptype = CFS_KERN_INFO;
}
if ((mask & D_CONSOLE) != 0) {
- printk("%s%s: %s", ptype, prefix, buf);
+ printk("%s%s: %.*s", ptype, prefix, len, buf);
} else {
- printk("%s%s: %d:%d:(%s:%d:%s()) %s", ptype, prefix, hdr->ph_pid,
- hdr->ph_extern_pid, file, hdr->ph_line_num, fn, buf);
+ printk("%s%s: %d:%d:(%s:%d:%s()) %.*s", ptype, prefix, hdr->ph_pid,
+ hdr->ph_extern_pid, file, hdr->ph_line_num, fn, len, buf);
}
return;
}
-int tcd_owns_tage(struct trace_cpu_data *tcd, struct trace_page *tage)
+int cfs_trace_max_debug_mb(void)
{
- return 1;
-}
-
-int trace_max_debug_mb(void)
-{
- int total_mb = (num_physpages >> (20 - CFS_PAGE_SHIFT));
+ int total_mb = (num_physpages >> (20 - PAGE_CACHE_SHIFT));
return MAX(512, (total_mb * 80)/100);
}
-
-void
-trace_call_on_all_cpus(void (*fn)(void *arg), void *arg)
-{
-#error "tbd"
-}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff