Whamcloud - gitweb
* Added lonal (loopback NAL)
[fs/lustre-release.git] / lustre / portals / include / linux / libcfs.h
index 3ebf935..f6a0a60 100644 (file)
@@ -2,16 +2,62 @@
  * vim:expandtab:shiftwidth=8:tabstop=8:
  */
 #ifndef _LIBCFS_H
+#define _LIBCFS_H
 
+#ifdef HAVE_ASM_TYPES_H
+#include <asm/types.h>
+#else
+#include "types.h"
+#endif
+
+#ifdef __KERNEL__
+# include <linux/time.h>
+# include <asm/timex.h>
+#else
+# include <sys/time.h>
+# define do_gettimeofday(tv) gettimeofday(tv, NULL);
+typedef unsigned long long cycles_t;
+#endif
 
 #define PORTAL_DEBUG
 
 #ifndef offsetof
-# define offsetof(typ,memb)     ((int)((char *)&(((typ *)0)->memb)))
+# define offsetof(typ,memb)     ((unsigned long)((char *)&(((typ *)0)->memb)))
 #endif
 
 #define LOWEST_BIT_SET(x)       ((x) & ~((x) - 1))
 
+#ifndef __KERNEL__
+/* Userpace byte flipping */
+# include <endian.h>
+# include <byteswap.h>
+# define __swab16(x) bswap_16(x)
+# define __swab32(x) bswap_32(x)
+# define __swab64(x) bswap_64(x)
+# define __swab16s(x) do {*(x) = bswap_16(*(x));} while (0)
+# define __swab32s(x) do {*(x) = bswap_32(*(x));} while (0)
+# define __swab64s(x) do {*(x) = bswap_64(*(x));} while (0)
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define le16_to_cpu(x) (x)
+#  define cpu_to_le16(x) (x)
+#  define le32_to_cpu(x) (x)
+#  define cpu_to_le32(x) (x)
+#  define le64_to_cpu(x) (x)
+#  define cpu_to_le64(x) (x)
+# else
+#  if __BYTE_ORDER == __BIG_ENDIAN
+#   define le16_to_cpu(x) bswap_16(x)
+#   define cpu_to_le16(x) bswap_16(x)
+#   define le32_to_cpu(x) bswap_32(x)
+#   define cpu_to_le32(x) bswap_32(x)
+#   define le64_to_cpu(x) bswap_64(x)
+#   define cpu_to_le64(x) bswap_64(x)
+#  else
+#   error "Unknown byte order"
+#  endif /* __BIG_ENDIAN */
+# endif /* __LITTLE_ENDIAN */
+#endif /* ! __KERNEL__ */
+
 /*
  *  Debugging
  */
@@ -19,7 +65,23 @@ extern unsigned int portal_subsystem_debug;
 extern unsigned int portal_stack;
 extern unsigned int portal_debug;
 extern unsigned int portal_printk;
-extern unsigned int portal_cerror;
+
+struct ptldebug_header {
+        __u32 ph_len;
+        __u32 ph_flags;
+        __u32 ph_subsys;
+        __u32 ph_mask;
+        __u32 ph_cpu_id;
+        __u32 ph_sec;
+        __u64 ph_usec;
+        __u32 ph_stack;
+        __u32 ph_pid;
+        __u32 ph_extern_pid;
+        __u32 ph_line_num;
+} __attribute__((packed));
+
+#define PH_FLAG_FIRST_RECORD 1
+
 /* Debugging subsystems (32 bits, non-overlapping) */
 #define S_UNDEFINED   0x00000001
 #define S_MDC         0x00000002
@@ -43,8 +105,12 @@ extern unsigned int portal_cerror;
 #define S_GMNAL       0x00080000
 #define S_PTLROUTER   0x00100000
 #define S_COBD        0x00200000
-#define S_IBNAL       0x00400000
-#define S_LMV         0x00800000
+#define S_IBNAL       0x00400000 /* All IB NALs */
+#define S_SM          0x00800000
+#define S_ASOBD       0x01000000
+#define S_LMV         0x02000000
+#define S_CMOBD       0x04000000
+#define S_LONAL       0x08000000
 
 /* If you change these values, please keep portals/utils/debug.c
  * up to date! */
@@ -73,7 +139,8 @@ extern unsigned int portal_cerror;
 #define D_RPCTRACE    0x00100000 /* for distributed debugging */
 #define D_VFSTRACE    0x00200000
 #define D_READA       0x00400000 /* read-ahead */
-
+#define D_MMAP        0x00800000
+#define D_CONFIG      0x01000000
 #ifdef __KERNEL__
 # include <linux/sched.h> /* THREAD_SIZE */
 #else
@@ -93,7 +160,7 @@ extern unsigned int portal_cerror;
 #  define CDEBUG_STACK (THREAD_SIZE -                                      \
                         ((unsigned long)__builtin_frame_address(0) &       \
                          (THREAD_SIZE - 1)))
-# endif
+# endif /* __ia64__ */
 
 #define CHECK_STACK(stack)                                                    \
         do {                                                                  \
@@ -105,7 +172,7 @@ extern unsigned int portal_cerror;
                       /*panic("LBUG");*/                                      \
                 }                                                             \
         } while (0)
-#else /* __KERNEL__ */
+#else /* !__KERNEL__ */
 #define CHECK_STACK(stack) do { } while(0)
 #define CDEBUG_STACK (0L)
 #endif /* __KERNEL__ */
@@ -113,8 +180,6 @@ extern unsigned int portal_cerror;
 #if 1
 #define CDEBUG(mask, format, a...)                                            \
 do {                                                                          \
-        if (portal_cerror == 0)                                               \
-                break;                                                        \
         CHECK_STACK(CDEBUG_STACK);                                            \
         if (((mask) & (D_ERROR | D_EMERG | D_WARNING)) ||                     \
             (portal_debug & (mask) &&                                         \
@@ -124,8 +189,40 @@ do {                                                                          \
                                   CDEBUG_STACK, format, ## a);                \
 } while (0)
 
-#define CWARN(format, a...) CDEBUG(D_WARNING, format, ## a)
-#define CERROR(format, a...) CDEBUG(D_ERROR, format, ## a)
+#define CDEBUG_MAX_LIMIT 600
+#define CDEBUG_LIMIT(cdebug_mask, cdebug_format, a...)                        \
+do {                                                                          \
+        static unsigned long cdebug_next;                                     \
+        static int cdebug_count, cdebug_delay = 1;                            \
+                                                                              \
+        CHECK_STACK(CDEBUG_STACK);                                            \
+        if (time_after(jiffies, cdebug_next)) {                               \
+                portals_debug_msg(DEBUG_SUBSYSTEM, cdebug_mask, __FILE__,     \
+                                  __FUNCTION__, __LINE__, CDEBUG_STACK,       \
+                                  cdebug_format, ## a);                       \
+                if (cdebug_count) {                                           \
+                        portals_debug_msg(DEBUG_SUBSYSTEM, cdebug_mask,       \
+                                          __FILE__, __FUNCTION__, __LINE__,   \
+                                          CDEBUG_STACK, cdebug_format, ## a); \
+                        cdebug_count = 0;                                     \
+                }                                                             \
+                if (time_after(jiffies, cdebug_next+(CDEBUG_MAX_LIMIT+10)*HZ))\
+                        cdebug_delay = cdebug_delay > 8 ? cdebug_delay/8 : 1; \
+                else                                                          \
+                        cdebug_delay = cdebug_delay*2 >= CDEBUG_MAX_LIMIT*HZ ?\
+                                        CDEBUG_MAX_LIMIT*HZ : cdebug_delay*2; \
+                cdebug_next = jiffies + cdebug_delay;                         \
+        } else {                                                              \
+                portals_debug_msg(DEBUG_SUBSYSTEM,                            \
+                                  portal_debug & ~(D_EMERG|D_ERROR|D_WARNING),\
+                                  __FILE__, __FUNCTION__, __LINE__,           \
+                                  CDEBUG_STACK, cdebug_format, ## a);         \
+                cdebug_count++;                                               \
+        }                                                                     \
+} while (0)
+
+#define CWARN(format, a...) CDEBUG_LIMIT(D_WARNING, format, ## a)
+#define CERROR(format, a...) CDEBUG_LIMIT(D_ERROR, format, ## a)
 #define CEMERG(format, a...) CDEBUG(D_EMERG, format, ## a)
 
 #define GOTO(label, rc)                                                 \
@@ -156,15 +253,72 @@ do {                                                                    \
 } while(0)
 #else
 #define CDEBUG(mask, format, a...)      do { } while (0)
-#define CWARN(format, a...)             do { } while (0)
-#define CERROR(format, a...)            printk("<3>" format, ## a)
-#define CEMERG(format, a...)            printk("<0>" format, ## a)
+#define CWARN(format, a...)             printk(KERN_WARNING format, ## a)
+#define CERROR(format, a...)            printk(KERN_ERR format, ## a)
+#define CEMERG(format, a...)            printk(KERN_EMERG format, ## a)
 #define GOTO(label, rc)                 do { (void)(rc); goto label; } while (0)
 #define RETURN(rc)                      return (rc)
 #define ENTRY                           do { } while (0)
 #define EXIT                            do { } while (0)
 #endif
 
+/* initial pid  */
+# if CRAY_PORTALS
+/* 
+ * 1) ptl_pid_t in cray portals is only 16 bits, not 32 bits, therefore this
+ *    is too big.
+ *
+ * 2) the implementation of ernal in cray portals further restricts the pid
+ *    space that may be used to 0 <= pid <= 255 (an 8 bit value).  Returns
+ *    an error at nal init time for any pid outside this range.  Other nals
+ *    in cray portals don't have this restriction.
+ * */
+#define LUSTRE_PTL_PID          9
+# else
+#define LUSTRE_PTL_PID          12345
+# endif
+
+#define LUSTRE_SRV_PTL_PID      LUSTRE_PTL_PID    
+
+#define PORTALS_CFG_VERSION 0x00010001;
+
+struct portals_cfg {
+        __u32 pcfg_version;
+        __u32 pcfg_command;
+
+        __u32 pcfg_nal;
+        __u32 pcfg_flags;
+
+        __u32 pcfg_gw_nal;
+        __u64 pcfg_nid;
+        __u64 pcfg_nid2;
+        __u64 pcfg_nid3;
+        __u32 pcfg_id;
+        __u32 pcfg_misc;
+        __u32 pcfg_fd;
+        __u32 pcfg_count;
+        __u32 pcfg_size;
+        __u32 pcfg_wait;
+
+        __u32 pcfg_plen1; /* buffers in userspace */
+        char *pcfg_pbuf1;
+        __u32 pcfg_plen2; /* buffers in userspace */
+        char *pcfg_pbuf2;
+};
+
+#define PCFG_INIT(pcfg, cmd)                            \
+do {                                                    \
+        memset(&pcfg, 0, sizeof(pcfg));                 \
+        pcfg.pcfg_version = PORTALS_CFG_VERSION;        \
+        pcfg.pcfg_command = (cmd);                      \
+                                                        \
+} while (0)
+
+typedef int (nal_cmd_handler_fn)(struct portals_cfg *, void *);
+int libcfs_nal_cmd_register(int nal, nal_cmd_handler_fn *handler, void *arg);
+int libcfs_nal_cmd(struct portals_cfg *pcfg);
+void libcfs_nal_cmd_unregister(int nal);
+
 struct portal_ioctl_data {
         __u32 ioc_len;
         __u32 ioc_version;
@@ -197,6 +351,7 @@ struct portal_ioctl_data {
         char ioc_bulk[0];
 };
 
+
 #ifdef __KERNEL__
 
 #include <linux/list.h>