/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 for more details (a copy is included * 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 * 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 * have any questions. * * GPL HEADER END */ /* * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, 2013, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef __LIBCFS_LINUX_KP30_H__ #define __LIBCFS_LINUX_KP30_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_MM_INLINE # include #endif #include #include #include #include #define cfs_get_work_data(type,field,data) container_of(data,type,field) #define cfs_num_online_cpus() num_online_cpus() #define wait_on_page wait_on_page_locked #define our_recalc_sigpending(current) recalc_sigpending() #define strtok(a,b) strpbrk(a, b) #define work_struct_t struct work_struct #ifdef CONFIG_SMP #define LASSERT_SPIN_LOCKED(lock) LASSERT(spin_is_locked(lock)) #define LINVRNT_SPIN_LOCKED(lock) LINVRNT(spin_is_locked(lock)) #else #define LASSERT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0) #define LINVRNT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0) #endif #define LASSERT_SEM_LOCKED(sem) LASSERT(down_trylock(sem) != 0) #define LASSERT_MUTEX_LOCKED(x) LASSERT(mutex_is_locked(x)) #define LIBCFS_PANIC(msg) panic(msg) /* ------------------------------------------------------------------- */ #define PORTAL_SYMBOL_REGISTER(x) #define PORTAL_SYMBOL_UNREGISTER(x) #define PORTAL_SYMBOL_GET(x) symbol_get(x) #define PORTAL_SYMBOL_PUT(x) symbol_put(x) #define PORTAL_MODULE_USE try_module_get(THIS_MODULE) #define PORTAL_MODULE_UNUSE module_put(THIS_MODULE) /******************************************************************************/ /* Module parameter support */ #define CFS_MODULE_PARM(name, t, type, perm, desc) \ module_param(name, type, perm);\ MODULE_PARM_DESC(name, desc) #define CFS_SYSFS_MODULE_PARM 1 /* module parameters accessible via sysfs */ /******************************************************************************/ #if (__GNUC__) /* Use the special GNU C __attribute__ hack to have the compiler check the * printf style argument string against the actual argument count and * types. */ #ifdef printf # warning printf has been defined as a macro... # undef printf #endif #endif /* __GNUC__ */ # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b) # define printf(format, b...) CDEBUG(D_OTHER, format , ## b) # define time(a) CURRENT_TIME # define cfs_num_possible_cpus() num_possible_cpus() # define cfs_num_present_cpus() num_present_cpus() /******************************************************************************/ /* Light-weight trace * Support for temporary event tracing with minimal Heisenberg effect. */ #define LWT_SUPPORT 0 #define LWT_MEMORY (16<<20) #ifndef KLWT_SUPPORT # if defined(__KERNEL__) # if !defined(BITS_PER_LONG) # error "BITS_PER_LONG not defined" # endif # elif !defined(__WORDSIZE) # error "__WORDSIZE not defined" # else # define BITS_PER_LONG __WORDSIZE # endif /* kernel hasn't defined this? */ typedef struct { long long lwte_when; char *lwte_where; void *lwte_task; long lwte_p1; long lwte_p2; long lwte_p3; long lwte_p4; # if BITS_PER_LONG > 32 long lwte_pad; # endif } lwt_event_t; #endif /* !KLWT_SUPPORT */ #if LWT_SUPPORT # ifdef __KERNEL__ # if !KLWT_SUPPORT typedef struct _lwt_page { cfs_list_t lwtp_list; struct page *lwtp_page; lwt_event_t *lwtp_events; } lwt_page_t; typedef struct { int lwtc_current_index; lwt_page_t *lwtc_current_page; } lwt_cpu_t; extern int lwt_enabled; extern lwt_cpu_t lwt_cpus[]; /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set. * This stuff is meant for finding specific problems; it never stays in * production code... */ #define LWTSTR(n) #n #define LWTWHERE(f,l) f ":" LWTSTR(l) #define LWT_EVENTS_PER_PAGE (PAGE_CACHE_SIZE / sizeof(lwt_event_t)) #define LWT_EVENT(p1, p2, p3, p4) \ do { \ unsigned long flags; \ lwt_cpu_t *cpu; \ lwt_page_t *p; \ lwt_event_t *e; \ \ if (lwt_enabled) { \ local_irq_save (flags); \ \ cpu = &lwt_cpus[smp_processor_id()]; \ p = cpu->lwtc_current_page; \ e = &p->lwtp_events[cpu->lwtc_current_index++]; \ \ if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \ cpu->lwtc_current_page = \ cfs_list_entry (p->lwtp_list.next, \ lwt_page_t, lwtp_list); \ cpu->lwtc_current_index = 0; \ } \ \ e->lwte_when = get_cycles(); \ e->lwte_where = LWTWHERE(__FILE__,__LINE__); \ e->lwte_task = current; \ e->lwte_p1 = (long)(p1); \ e->lwte_p2 = (long)(p2); \ e->lwte_p3 = (long)(p3); \ e->lwte_p4 = (long)(p4); \ \ local_irq_restore (flags); \ } \ } while (0) #endif /* !KLWT_SUPPORT */ extern int lwt_init (void); extern void lwt_fini (void); extern int lwt_lookup_string (int *size, char *knlptr, char *usrptr, int usrsize); extern int lwt_control (int enable, int clear); extern int lwt_snapshot (cfs_cycles_t *now, int *ncpu, int *total_size, void *user_ptr, int user_size); # else /* __KERNEL__ */ # define LWT_EVENT(p1,p2,p3,p4) /* no userland implementation yet */ # endif /* __KERNEL__ */ #endif /* LWT_SUPPORT */ /* ------------------------------------------------------------------ */ #define IOCTL_LIBCFS_TYPE long #ifdef __CYGWIN__ # ifndef BITS_PER_LONG # if (~0UL) == 0xffffffffUL # define BITS_PER_LONG 32 # else # define BITS_PER_LONG 64 # endif # endif #endif #if BITS_PER_LONG > 32 # define LI_POISON ((int)0x5a5a5a5a5a5a5a5a) # define LL_POISON ((long)0x5a5a5a5a5a5a5a5a) # define LP_POISON ((void *)(long)0x5a5a5a5a5a5a5a5a) #else # define LI_POISON ((int)0x5a5a5a5a) # define LL_POISON ((long)0x5a5a5a5a) # define LP_POISON ((void *)(long)0x5a5a5a5a) #endif /* this is a bit chunky */ #define _LWORDSIZE BITS_PER_LONG #if (defined(__KERNEL__) && defined(HAVE_KERN__U64_LONG_LONG)) || \ (!defined(__KERNEL__) && defined(HAVE_USER__U64_LONG_LONG)) # define LPU64 "%llu" # define LPD64 "%lld" # define LPX64 "%#llx" # define LPX64i "%llx" # define LPO64 "%#llo" # define LPF64 "L" #else # define LPU64 "%lu" # define LPD64 "%ld" # define LPX64 "%#lx" # define LPX64i "%lx" # define LPO64 "%#lo" # define LPF64 "l" #endif /* * long_ptr_t & ulong_ptr_t, same to "long" for gcc */ # define LPLU "%lu" # define LPLD "%ld" # define LPLX "%#lx" /* * pid_t */ # define LPPID "%d" #ifndef LPU64 # error "No word size defined" #endif #undef _LWORDSIZE #define cfs_smp_processor_id() smp_processor_id() #ifndef get_cpu # ifdef CONFIG_PREEMPT # define cfs_get_cpu() ({ preempt_disable(); smp_processor_id(); }) # define cfs_put_cpu() preempt_enable() # else # define cfs_get_cpu() smp_processor_id() # define cfs_put_cpu() # endif #else # define cfs_get_cpu() get_cpu() # define cfs_put_cpu() put_cpu() #endif /* get_cpu & put_cpu */ #ifdef HAVE_SYSCTL_CTLNAME #define INIT_CTL_NAME(a) .ctl_name = a, #define INIT_STRATEGY(a) .strategy = a, #else #define INIT_CTL_NAME(a) #define INIT_STRATEGY(a) #endif #endif