/********************************************************************* * * Filename: irlan_common.h * Version: 0.8 * Description: IrDA LAN access layer * Status: Experimental. * Author: Dag Brattli * Created at: Sun Aug 31 20:14:37 1997 * Modified at: Sun Oct 31 19:41:24 1999 * Modified by: Dag Brattli * * Copyright (c) 1998-1999 Dag Brattli , * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * Neither Dag Brattli nor University of Tromsø admit liability nor * provide warranty for any of this software. This material is * provided "AS-IS" and at no charge. * ********************************************************************/ #ifndef IRLAN_H #define IRLAN_H #include /* for HZ */ #include #include #include #include #include #include #define IRLAN_MTU 1518 #define IRLAN_TIMEOUT 10*HZ /* 10 seconds */ /* Command packet types */ #define CMD_GET_PROVIDER_INFO 0 #define CMD_GET_MEDIA_CHAR 1 #define CMD_OPEN_DATA_CHANNEL 2 #define CMD_CLOSE_DATA_CHAN 3 #define CMD_RECONNECT_DATA_CHAN 4 #define CMD_FILTER_OPERATION 5 /* Some responses */ #define RSP_SUCCESS 0 #define RSP_INSUFFICIENT_RESOURCES 1 #define RSP_INVALID_COMMAND_FORMAT 2 #define RSP_COMMAND_NOT_SUPPORTED 3 #define RSP_PARAM_NOT_SUPPORTED 4 #define RSP_VALUE_NOT_SUPPORTED 5 #define RSP_NOT_OPEN 6 #define RSP_AUTHENTICATION_REQUIRED 7 #define RSP_INVALID_PASSWORD 8 #define RSP_PROTOCOL_ERROR 9 #define RSP_ASYNCHRONOUS_ERROR 255 /* Media types */ #define MEDIA_802_3 1 #define MEDIA_802_5 2 /* Filter parameters */ #define DATA_CHAN 1 #define FILTER_TYPE 2 #define FILTER_MODE 3 /* Filter types */ #define IRLAN_DIRECTED 0x01 #define IRLAN_FUNCTIONAL 0x02 #define IRLAN_GROUP 0x04 #define IRLAN_MAC_FRAME 0x08 #define IRLAN_MULTICAST 0x10 #define IRLAN_BROADCAST 0x20 #define IRLAN_IPX_SOCKET 0x40 /* Filter modes */ #define ALL 1 #define FILTER 2 #define NONE 3 /* Filter operations */ #define GET 1 #define CLEAR 2 #define ADD 3 #define REMOVE 4 #define DYNAMIC 5 /* Access types */ #define ACCESS_DIRECT 1 #define ACCESS_PEER 2 #define ACCESS_HOSTED 3 #define IRLAN_BYTE 0 #define IRLAN_SHORT 1 #define IRLAN_ARRAY 2 /* IrLAN sits on top if IrTTP */ #define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER) /* 1 byte for the command code and 1 byte for the parameter count */ #define IRLAN_CMD_HEADER 2 #define IRLAN_STRING_PARAMETER_LEN(name, value) (1 + strlen((name)) + 2 \ + strlen ((value))) #define IRLAN_BYTE_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 1) #define IRLAN_SHORT_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 2) /* * IrLAN client */ struct irlan_client_cb { int state; int open_retries; struct tsap_cb *tsap_ctrl; __u32 max_sdu_size; __u8 max_header_size; int access_type; /* Access type of provider */ __u8 reconnect_key[255]; __u8 key_len; __u16 recv_arb_val; __u16 max_frame; int filter_type; int unicast_open; int broadcast_open; int tx_busy; struct sk_buff_head txq; /* Transmit control queue */ struct iriap_cb *iriap; struct timer_list kick_timer; }; /* * IrLAN provider */ struct irlan_provider_cb { int state; struct tsap_cb *tsap_ctrl; __u32 max_sdu_size; __u8 max_header_size; /* * Store some values here which are used by the provider to parse * the filter operations */ int data_chan; int filter_type; int filter_mode; int filter_operation; int filter_entry; int access_type; /* Access type */ __u16 send_arb_val; __u8 mac_address[ETH_ALEN]; /* Generated MAC address for peer device */ }; /* * IrLAN control block */ struct irlan_cb { int magic; struct list_head dev_list; struct net_device *dev; /* Ethernet device structure*/ __u32 saddr; /* Source device address */ __u32 daddr; /* Destination device address */ int disconnect_reason; /* Why we got disconnected */ int media; /* Media type */ __u8 version[2]; /* IrLAN version */ struct tsap_cb *tsap_data; /* Data TSAP */ int use_udata; /* Use Unit Data transfers */ __u8 stsap_sel_data; /* Source data TSAP selector */ __u8 dtsap_sel_data; /* Destination data TSAP selector */ __u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */ struct irlan_client_cb client; /* Client specific fields */ struct irlan_provider_cb provider; /* Provider specific fields */ __u32 max_sdu_size; __u8 max_header_size; wait_queue_head_t open_wait; struct timer_list watchdog_timer; }; void irlan_close(struct irlan_cb *self); void irlan_close_tsaps(struct irlan_cb *self); int irlan_register_netdev(struct irlan_cb *self); void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel); void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout); void irlan_open_data_tsap(struct irlan_cb *self); int irlan_run_ctrl_tx_queue(struct irlan_cb *self); struct irlan_cb *irlan_get_any(void); void irlan_get_provider_info(struct irlan_cb *self); void irlan_get_media_char(struct irlan_cb *self); void irlan_open_data_channel(struct irlan_cb *self); void irlan_close_data_channel(struct irlan_cb *self); void irlan_set_multicast_filter(struct irlan_cb *self, int status); void irlan_set_broadcast_filter(struct irlan_cb *self, int status); int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value); int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value); int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value); int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value, __u16 value_len); int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len); #endif a>)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/testing/ktest')