diff options
Diffstat (limited to 'Documentation')
118 files changed, 1231 insertions, 8118 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index cb9a6c6fa83b..3acc4f1a6f84 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -46,7 +46,8 @@ IRQ.txt Intel-IOMMU.txt - basic info on the Intel IOMMU virtualization support. Makefile - - some files in Documentation dir are actually sample code to build + - This file does nothing. Removing it breaks make htmldocs and + make distclean. ManagementStyle - how to (attempt to) manage kernel hackers. RCU/ diff --git a/Documentation/80211/cfg80211.rst b/Documentation/80211/cfg80211.rst new file mode 100644 index 000000000000..b1e149ea6fee --- /dev/null +++ b/Documentation/80211/cfg80211.rst @@ -0,0 +1,345 @@ +================== +cfg80211 subsystem +================== + +Device registration +=================== + +.. kernel-doc:: include/net/cfg80211.h + :doc: Device registration + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_channel_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_channel + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_rate_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_rate + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_sta_ht_cap + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_supported_band + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_signal_type + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_params_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy + +.. kernel-doc:: include/net/cfg80211.h + :functions: wireless_dev + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_new + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_register + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_unregister + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_free + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_name + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_dev + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_priv + +.. kernel-doc:: include/net/cfg80211.h + :functions: priv_to_wiphy + +.. kernel-doc:: include/net/cfg80211.h + :functions: set_wiphy_dev + +.. kernel-doc:: include/net/cfg80211.h + :functions: wdev_priv + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_iface_limit + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_iface_combination + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_check_combinations + +Actions and configuration +========================= + +.. kernel-doc:: include/net/cfg80211.h + :doc: Actions and configuration + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_ops + +.. kernel-doc:: include/net/cfg80211.h + :functions: vif_params + +.. kernel-doc:: include/net/cfg80211.h + :functions: key_params + +.. kernel-doc:: include/net/cfg80211.h + :functions: survey_info_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: survey_info + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_beacon_data + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_ap_settings + +.. kernel-doc:: include/net/cfg80211.h + :functions: station_parameters + +.. kernel-doc:: include/net/cfg80211.h + :functions: rate_info_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: rate_info + +.. kernel-doc:: include/net/cfg80211.h + :functions: station_info + +.. kernel-doc:: include/net/cfg80211.h + :functions: monitor_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: mpath_info_flags + +.. kernel-doc:: include/net/cfg80211.h + :functions: mpath_info + +.. kernel-doc:: include/net/cfg80211.h + :functions: bss_parameters + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_txq_params + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_crypto_settings + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_auth_request + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_assoc_request + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_deauth_request + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_disassoc_request + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_ibss_params + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_connect_params + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_pmksa + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_rx_mlme_mgmt + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_auth_timeout + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_rx_assoc_resp + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_assoc_timeout + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_tx_mlme_mgmt + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_ibss_joined + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_connect_result + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_connect_bss + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_connect_timeout + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_roamed + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_disconnected + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_ready_on_channel + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_remain_on_channel_expired + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_new_sta + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_rx_mgmt + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_mgmt_tx_status + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_cqm_rssi_notify + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_cqm_pktloss_notify + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_michael_mic_failure + +Scanning and BSS list handling +============================== + +.. kernel-doc:: include/net/cfg80211.h + :doc: Scanning and BSS list handling + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_ssid + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_scan_request + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_scan_done + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_bss + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_inform_bss + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_inform_bss_frame_data + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_inform_bss_data + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_unlink_bss + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_find_ie + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_bss_get_ie + +Utility functions +================= + +.. kernel-doc:: include/net/cfg80211.h + :doc: Utility functions + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_channel_to_frequency + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_frequency_to_channel + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_get_channel + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_get_response_rate + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_hdrlen + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_get_hdrlen_from_skb + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_radiotap_iterator + +Data path helpers +================= + +.. kernel-doc:: include/net/cfg80211.h + :doc: Data path helpers + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_data_to_8023 + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_data_from_8023 + +.. kernel-doc:: include/net/cfg80211.h + :functions: ieee80211_amsdu_to_8023s + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_classify8021d + +Regulatory enforcement infrastructure +===================================== + +.. kernel-doc:: include/net/cfg80211.h + :doc: Regulatory enforcement infrastructure + +.. kernel-doc:: include/net/cfg80211.h + :functions: regulatory_hint + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_apply_custom_regulatory + +.. kernel-doc:: include/net/cfg80211.h + :functions: freq_reg_info + +RFkill integration +================== + +.. kernel-doc:: include/net/cfg80211.h + :doc: RFkill integration + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_rfkill_set_hw_state + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_rfkill_start_polling + +.. kernel-doc:: include/net/cfg80211.h + :functions: wiphy_rfkill_stop_polling + +Test mode +========= + +.. kernel-doc:: include/net/cfg80211.h + :doc: Test mode + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_testmode_alloc_reply_skb + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_testmode_reply + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_testmode_alloc_event_skb + +.. kernel-doc:: include/net/cfg80211.h + :functions: cfg80211_testmode_event diff --git a/Documentation/80211/conf.py b/Documentation/80211/conf.py new file mode 100644 index 000000000000..20c7c275ef4a --- /dev/null +++ b/Documentation/80211/conf.py @@ -0,0 +1,5 @@ +# -*- coding: utf-8; mode: python -*- + +project = "Linux 802.11 Driver Developer's Guide" + +tags.add("subproject") diff --git a/Documentation/80211/index.rst b/Documentation/80211/index.rst new file mode 100644 index 000000000000..90bba476f442 --- /dev/null +++ b/Documentation/80211/index.rst @@ -0,0 +1,17 @@ +===================================== +Linux 802.11 Driver Developer's Guide +===================================== + +.. toctree:: + + introduction + cfg80211 + mac80211 + mac80211-advanced + +.. only:: subproject + + Indices + ======= + + * :ref:`genindex` diff --git a/Documentation/80211/introduction.rst b/Documentation/80211/introduction.rst new file mode 100644 index 000000000000..4938fa87691c --- /dev/null +++ b/Documentation/80211/introduction.rst @@ -0,0 +1,17 @@ +============ +Introduction +============ + +Explaining wireless 802.11 networking in the Linux kernel + +Copyright 2007-2009 Johannes Berg + +These books attempt to give a description of the various subsystems +that play a role in 802.11 wireless networking in Linux. Since these +books are for kernel developers they attempts to document the +structures and functions used in the kernel as well as giving a +higher-level overview. + +The reader is expected to be familiar with the 802.11 standard as +published by the IEEE in 802.11-2007 (or possibly later versions). +References to this standard will be given as "802.11-2007 8.1.5". diff --git a/Documentation/80211/mac80211-advanced.rst b/Documentation/80211/mac80211-advanced.rst new file mode 100644 index 000000000000..70a89b2163c2 --- /dev/null +++ b/Documentation/80211/mac80211-advanced.rst @@ -0,0 +1,295 @@ +============================= +mac80211 subsystem (advanced) +============================= + +Information contained within this part of the book is of interest only +for advanced interaction of mac80211 with drivers to exploit more +hardware capabilities and improve performance. + +LED support +=========== + +Mac80211 supports various ways of blinking LEDs. Wherever possible, +device LEDs should be exposed as LED class devices and hooked up to the +appropriate trigger, which will then be triggered appropriately by +mac80211. + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_tx_led_name + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_rx_led_name + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_assoc_led_name + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_radio_led_name + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tpt_blink + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tpt_led_trigger_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_create_tpt_led_trigger + +Hardware crypto acceleration +============================ + +.. kernel-doc:: include/net/mac80211.h + :doc: Hardware crypto acceleration + +.. kernel-doc:: include/net/mac80211.h + :functions: set_key_cmd + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_key_conf + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_key_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_tkip_p1k + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_tkip_p1k_iv + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_tkip_p2k + +Powersave support +================= + +.. kernel-doc:: include/net/mac80211.h + :doc: Powersave support + +Beacon filter support +===================== + +.. kernel-doc:: include/net/mac80211.h + :doc: Beacon filter support + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_beacon_loss + +Multiple queues and QoS support +=============================== + +TBD + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_queue_params + +Access point mode support +========================= + +TBD + +Some parts of the if_conf should be discussed here instead + +Insert notes about VLAN interfaces with hw crypto here or in the hw +crypto chapter. + +support for powersaving clients +------------------------------- + +.. kernel-doc:: include/net/mac80211.h + :doc: AP support for powersaving clients + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_get_buffered_bc + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_beacon_get + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_sta_eosp + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_frame_release_type + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_sta_ps_transition + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_sta_ps_transition_ni + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_sta_set_buffered + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_sta_block_awake + +Supporting multiple virtual interfaces +====================================== + +TBD + +Note: WDS with identical MAC address should almost always be OK + +Insert notes about having multiple virtual interfaces with different MAC +addresses here, note which configurations are supported by mac80211, add +notes about supporting hw crypto with it. + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_iterate_active_interfaces + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_iterate_active_interfaces_atomic + +Station handling +================ + +TODO + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_sta + +.. kernel-doc:: include/net/mac80211.h + :functions: sta_notify_cmd + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_find_sta + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_find_sta_by_ifaddr + +Hardware scan offload +===================== + +TBD + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_scan_completed + +Aggregation +=========== + +TX A-MPDU aggregation +--------------------- + +.. kernel-doc:: net/mac80211/agg-tx.c + :doc: TX A-MPDU aggregation + +.. WARNING: DOCPROC directive not supported: !Cnet/mac80211/agg-tx.c + +RX A-MPDU aggregation +--------------------- + +.. kernel-doc:: net/mac80211/agg-rx.c + :doc: RX A-MPDU aggregation + +.. WARNING: DOCPROC directive not supported: !Cnet/mac80211/agg-rx.c + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_ampdu_mlme_action + +Spatial Multiplexing Powersave (SMPS) +===================================== + +.. kernel-doc:: include/net/mac80211.h + :doc: Spatial multiplexing power save + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_request_smps + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_smps_mode + +TBD + +This part of the book describes the rate control algorithm interface and +how it relates to mac80211 and drivers. + +Rate Control API +================ + +TBD + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_start_tx_ba_session + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_start_tx_ba_cb_irqsafe + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_stop_tx_ba_session + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_stop_tx_ba_cb_irqsafe + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rate_control_changed + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_rate_control + +.. kernel-doc:: include/net/mac80211.h + :functions: rate_control_send_low + +TBD + +This part of the book describes mac80211 internals. + +Key handling +============ + +Key handling basics +------------------- + +.. kernel-doc:: net/mac80211/key.c + :doc: Key handling basics + +MORE TBD +-------- + +TBD + +Receive processing +================== + +TBD + +Transmit processing +=================== + +TBD + +Station info handling +===================== + +Programming information +----------------------- + +.. kernel-doc:: net/mac80211/sta_info.h + :functions: sta_info + +.. kernel-doc:: net/mac80211/sta_info.h + :functions: ieee80211_sta_info_flags + +STA information lifetime rules +------------------------------ + +.. kernel-doc:: net/mac80211/sta_info.c + :doc: STA information lifetime rules + +Aggregation +=========== + +.. kernel-doc:: net/mac80211/sta_info.h + :functions: sta_ampdu_mlme + +.. kernel-doc:: net/mac80211/sta_info.h + :functions: tid_ampdu_tx + +.. kernel-doc:: net/mac80211/sta_info.h + :functions: tid_ampdu_rx + +Synchronisation +=============== + +TBD + +Locking, lots of RCU diff --git a/Documentation/80211/mac80211.rst b/Documentation/80211/mac80211.rst new file mode 100644 index 000000000000..85a8335e80b6 --- /dev/null +++ b/Documentation/80211/mac80211.rst @@ -0,0 +1,216 @@ +=========================== +mac80211 subsystem (basics) +=========================== + +You should read and understand the information contained within this +part of the book while implementing a mac80211 driver. In some chapters, +advanced usage is noted, those may be skipped if this isn't needed. + +This part of the book only covers station and monitor mode +functionality, additional information required to implement the other +modes is covered in the second part of the book. + +Basic hardware handling +======================= + +TBD + +This chapter shall contain information on getting a hw struct allocated +and registered with mac80211. + +Since it is required to allocate rates/modes before registering a hw +struct, this chapter shall also contain information on setting up the +rate/mode structs. + +Additionally, some discussion about the callbacks and the general +programming model should be in here, including the definition of +ieee80211_ops which will be referred to a lot. + +Finally, a discussion of hardware capabilities should be done with +references to other parts of the book. + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_hw + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_hw_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: SET_IEEE80211_DEV + +.. kernel-doc:: include/net/mac80211.h + :functions: SET_IEEE80211_PERM_ADDR + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_ops + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_alloc_hw + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_register_hw + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_unregister_hw + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_free_hw + +PHY configuration +================= + +TBD + +This chapter should describe PHY handling including start/stop callbacks +and the various structures used. + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_conf + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_conf_flags + +Virtual interfaces +================== + +TBD + +This chapter should describe virtual interface basics that are relevant +to the driver (VLANs, MGMT etc are not.) It should explain the use of +the add_iface/remove_iface callbacks as well as the interface +configuration callbacks. + +Things related to AP mode should be discussed there. + +Things related to supporting multiple interfaces should be in the +appropriate chapter, a BIG FAT note should be here about this though and +the recommendation to allow only a single interface in STA mode at +first! + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_vif + +Receive and transmit processing +=============================== + +what should be here +------------------- + +TBD + +This should describe the receive and transmit paths in mac80211/the +drivers as well as transmit status handling. + +Frame format +------------ + +.. kernel-doc:: include/net/mac80211.h + :doc: Frame format + +Packet alignment +---------------- + +.. kernel-doc:: net/mac80211/rx.c + :doc: Packet alignment + +Calling into mac80211 from interrupts +------------------------------------- + +.. kernel-doc:: include/net/mac80211.h + :doc: Calling mac80211 from interrupts + +functions/definitions +--------------------- + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rx_status + +.. kernel-doc:: include/net/mac80211.h + :functions: mac80211_rx_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: mac80211_tx_info_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: mac80211_tx_control_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: mac80211_rate_control_flags + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_rate + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_info + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_info_clear_status + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rx + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rx_ni + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rx_irqsafe + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_status + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_status_ni + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_tx_status_irqsafe + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rts_get + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_rts_duration + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_ctstoself_get + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_ctstoself_duration + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_generic_frame_duration + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_wake_queue + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_stop_queue + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_wake_queues + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_stop_queues + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_queue_stopped + +Frame filtering +=============== + +.. kernel-doc:: include/net/mac80211.h + :doc: Frame filtering + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_filter_flags + +The mac80211 workqueue +====================== + +.. kernel-doc:: include/net/mac80211.h + :doc: mac80211 workqueue + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_queue_work + +.. kernel-doc:: include/net/mac80211.h + :functions: ieee80211_queue_delayed_work diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl index 4ba0a2a61926..640f65e79ef1 100644 --- a/Documentation/ABI/testing/sysfs-class-cxl +++ b/Documentation/ABI/testing/sysfs-class-cxl @@ -220,8 +220,11 @@ What: /sys/class/cxl/<card>/reset Date: October 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: write only - Writing 1 will issue a PERST to card which may cause the card - to reload the FPGA depending on load_image_on_perst. + Writing 1 will issue a PERST to card provided there are no + contexts active on any one of the card AFUs. This may cause + the card to reload the FPGA depending on load_image_on_perst. + Writing -1 will do a force PERST irrespective of any active + contexts on the card AFUs. Users: https://github.com/ibm-capi/libcxl What: /sys/class/cxl/<card>/perst_reloads_same_image (not in a guest) diff --git a/Documentation/DocBook/80211.tmpl b/Documentation/DocBook/80211.tmpl deleted file mode 100644 index 800fe7a9024c..000000000000 --- a/Documentation/DocBook/80211.tmpl +++ /dev/null @@ -1,584 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!DOCTYPE set PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" - "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []> -<set> - <setinfo> - <title>The 802.11 subsystems – for kernel developers</title> - <subtitle> - Explaining wireless 802.11 networking in the Linux kernel - </subtitle> - - <copyright> - <year>2007-2009</year> - <holder>Johannes Berg</holder> - </copyright> - - <authorgroup> - <author> - <firstname>Johannes</firstname> - <surname>Berg</surname> - <affiliation> - <address><email>johannes@sipsolutions.net</email></address> - </affiliation> - </author> - </authorgroup> - - <legalnotice> - <para> - This documentation is free software; you can redistribute - it and/or modify it under the terms of the GNU General Public - License version 2 as published by the Free Software Foundation. - </para> - <para> - This documentation 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 for more details. - </para> - <para> - You should have received a copy of the GNU General Public - License along with this documentation; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, - MA 02111-1307 USA - </para> - <para> - For more details see the file COPYING in the source - distribution of Linux. - </para> - </legalnotice> - - <abstract> - <para> - These books attempt to give a description of the - various subsystems that play a role in 802.11 wireless - networking in Linux. Since these books are for kernel - developers they attempts to document the structures - and functions used in the kernel as well as giving a - higher-level overview. - </para> - <para> - The reader is expected to be familiar with the 802.11 - standard as published by the IEEE in 802.11-2007 (or - possibly later versions). References to this standard - will be given as "802.11-2007 8.1.5". - </para> - </abstract> - </setinfo> - <book id="cfg80211-developers-guide"> - <bookinfo> - <title>The cfg80211 subsystem</title> - - <abstract> -!Pinclude/net/cfg80211.h Introduction - </abstract> - </bookinfo> - <chapter> - <title>Device registration</title> -!Pinclude/net/cfg80211.h Device registration -!Finclude/net/cfg80211.h ieee80211_channel_flags -!Finclude/net/cfg80211.h ieee80211_channel -!Finclude/net/cfg80211.h ieee80211_rate_flags -!Finclude/net/cfg80211.h ieee80211_rate -!Finclude/net/cfg80211.h ieee80211_sta_ht_cap -!Finclude/net/cfg80211.h ieee80211_supported_band -!Finclude/net/cfg80211.h cfg80211_signal_type -!Finclude/net/cfg80211.h wiphy_params_flags -!Finclude/net/cfg80211.h wiphy_flags -!Finclude/net/cfg80211.h wiphy -!Finclude/net/cfg80211.h wireless_dev -!Finclude/net/cfg80211.h wiphy_new -!Finclude/net/cfg80211.h wiphy_register -!Finclude/net/cfg80211.h wiphy_unregister -!Finclude/net/cfg80211.h wiphy_free - -!Finclude/net/cfg80211.h wiphy_name -!Finclude/net/cfg80211.h wiphy_dev -!Finclude/net/cfg80211.h wiphy_priv -!Finclude/net/cfg80211.h priv_to_wiphy -!Finclude/net/cfg80211.h set_wiphy_dev -!Finclude/net/cfg80211.h wdev_priv -!Finclude/net/cfg80211.h ieee80211_iface_limit -!Finclude/net/cfg80211.h ieee80211_iface_combination -!Finclude/net/cfg80211.h cfg80211_check_combinations - </chapter> - <chapter> - <title>Actions and configuration</title> -!Pinclude/net/cfg80211.h Actions and configuration -!Finclude/net/cfg80211.h cfg80211_ops -!Finclude/net/cfg80211.h vif_params -!Finclude/net/cfg80211.h key_params -!Finclude/net/cfg80211.h survey_info_flags -!Finclude/net/cfg80211.h survey_info -!Finclude/net/cfg80211.h cfg80211_beacon_data -!Finclude/net/cfg80211.h cfg80211_ap_settings -!Finclude/net/cfg80211.h station_parameters -!Finclude/net/cfg80211.h rate_info_flags -!Finclude/net/cfg80211.h rate_info -!Finclude/net/cfg80211.h station_info -!Finclude/net/cfg80211.h monitor_flags -!Finclude/net/cfg80211.h mpath_info_flags -!Finclude/net/cfg80211.h mpath_info -!Finclude/net/cfg80211.h bss_parameters -!Finclude/net/cfg80211.h ieee80211_txq_params -!Finclude/net/cfg80211.h cfg80211_crypto_settings -!Finclude/net/cfg80211.h cfg80211_auth_request -!Finclude/net/cfg80211.h cfg80211_assoc_request -!Finclude/net/cfg80211.h cfg80211_deauth_request -!Finclude/net/cfg80211.h cfg80211_disassoc_request -!Finclude/net/cfg80211.h cfg80211_ibss_params -!Finclude/net/cfg80211.h cfg80211_connect_params -!Finclude/net/cfg80211.h cfg80211_pmksa -!Finclude/net/cfg80211.h cfg80211_rx_mlme_mgmt -!Finclude/net/cfg80211.h cfg80211_auth_timeout -!Finclude/net/cfg80211.h cfg80211_rx_assoc_resp -!Finclude/net/cfg80211.h cfg80211_assoc_timeout -!Finclude/net/cfg80211.h cfg80211_tx_mlme_mgmt -!Finclude/net/cfg80211.h cfg80211_ibss_joined -!Finclude/net/cfg80211.h cfg80211_connect_result -!Finclude/net/cfg80211.h cfg80211_connect_bss -!Finclude/net/cfg80211.h cfg80211_connect_timeout -!Finclude/net/cfg80211.h cfg80211_roamed -!Finclude/net/cfg80211.h cfg80211_disconnected -!Finclude/net/cfg80211.h cfg80211_ready_on_channel -!Finclude/net/cfg80211.h cfg80211_remain_on_channel_expired -!Finclude/net/cfg80211.h cfg80211_new_sta -!Finclude/net/cfg80211.h cfg80211_rx_mgmt -!Finclude/net/cfg80211.h cfg80211_mgmt_tx_status -!Finclude/net/cfg80211.h cfg80211_cqm_rssi_notify -!Finclude/net/cfg80211.h cfg80211_cqm_pktloss_notify -!Finclude/net/cfg80211.h cfg80211_michael_mic_failure - </chapter> - <chapter> - <title>Scanning and BSS list handling</title> -!Pinclude/net/cfg80211.h Scanning and BSS list handling -!Finclude/net/cfg80211.h cfg80211_ssid -!Finclude/net/cfg80211.h cfg80211_scan_request -!Finclude/net/cfg80211.h cfg80211_scan_done -!Finclude/net/cfg80211.h cfg80211_bss -!Finclude/net/cfg80211.h cfg80211_inform_bss -!Finclude/net/cfg80211.h cfg80211_inform_bss_frame_data -!Finclude/net/cfg80211.h cfg80211_inform_bss_data -!Finclude/net/cfg80211.h cfg80211_unlink_bss -!Finclude/net/cfg80211.h cfg80211_find_ie -!Finclude/net/cfg80211.h ieee80211_bss_get_ie - </chapter> - <chapter> - <title>Utility functions</title> -!Pinclude/net/cfg80211.h Utility functions -!Finclude/net/cfg80211.h ieee80211_channel_to_frequency -!Finclude/net/cfg80211.h ieee80211_frequency_to_channel -!Finclude/net/cfg80211.h ieee80211_get_channel -!Finclude/net/cfg80211.h ieee80211_get_response_rate -!Finclude/net/cfg80211.h ieee80211_hdrlen -!Finclude/net/cfg80211.h ieee80211_get_hdrlen_from_skb -!Finclude/net/cfg80211.h ieee80211_radiotap_iterator - </chapter> - <chapter> - <title>Data path helpers</title> -!Pinclude/net/cfg80211.h Data path helpers -!Finclude/net/cfg80211.h ieee80211_data_to_8023 -!Finclude/net/cfg80211.h ieee80211_data_from_8023 -!Finclude/net/cfg80211.h ieee80211_amsdu_to_8023s -!Finclude/net/cfg80211.h cfg80211_classify8021d - </chapter> - <chapter> - <title>Regulatory enforcement infrastructure</title> -!Pinclude/net/cfg80211.h Regulatory enforcement infrastructure -!Finclude/net/cfg80211.h regulatory_hint -!Finclude/net/cfg80211.h wiphy_apply_custom_regulatory -!Finclude/net/cfg80211.h freq_reg_info - </chapter> - <chapter> - <title>RFkill integration</title> -!Pinclude/net/cfg80211.h RFkill integration -!Finclude/net/cfg80211.h wiphy_rfkill_set_hw_state -!Finclude/net/cfg80211.h wiphy_rfkill_start_polling -!Finclude/net/cfg80211.h wiphy_rfkill_stop_polling - </chapter> - <chapter> - <title>Test mode</title> -!Pinclude/net/cfg80211.h Test mode -!Finclude/net/cfg80211.h cfg80211_testmode_alloc_reply_skb -!Finclude/net/cfg80211.h cfg80211_testmode_reply -!Finclude/net/cfg80211.h cfg80211_testmode_alloc_event_skb -!Finclude/net/cfg80211.h cfg80211_testmode_event - </chapter> - </book> - <book id="mac80211-developers-guide"> - <bookinfo> - <title>The mac80211 subsystem</title> - <abstract> -!Pinclude/net/mac80211.h Introduction -!Pinclude/net/mac80211.h Warning - </abstract> - </bookinfo> - - <toc></toc> - - <!-- - Generally, this document shall be ordered by increasing complexity. - It is important to note that readers should be able to read only - the first few sections to get a working driver and only advanced - usage should require reading the full document. - --> - - <part> - <title>The basic mac80211 driver interface</title> - <partintro> - <para> - You should read and understand the information contained - within this part of the book while implementing a driver. - In some chapters, advanced usage is noted, that may be - skipped at first. - </para> - <para> - This part of the book only covers station and monitor mode - functionality, additional information required to implement - the other modes is covered in the second part of the book. - </para> - </partintro> - - <chapter id="basics"> - <title>Basic hardware handling</title> - <para>TBD</para> - <para> - This chapter shall contain information on getting a hw - struct allocated and registered with mac80211. - </para> - <para> - Since it is required to allocate rates/modes before registering - a hw struct, this chapter shall also contain information on setting - up the rate/mode structs. - </para> - <para> - Additionally, some discussion about the callbacks and - the general programming model should be in here, including - the definition of ieee80211_ops which will be referred to - a lot. - </para> - <para> - Finally, a discussion of hardware capabilities should be done - with references to other parts of the book. - </para> - <!-- intentionally multiple !F lines to get proper order --> -!Finclude/net/mac80211.h ieee80211_hw -!Finclude/net/mac80211.h ieee80211_hw_flags -!Finclude/net/mac80211.h SET_IEEE80211_DEV -!Finclude/net/mac80211.h SET_IEEE80211_PERM_ADDR -!Finclude/net/mac80211.h ieee80211_ops -!Finclude/net/mac80211.h ieee80211_alloc_hw -!Finclude/net/mac80211.h ieee80211_register_hw -!Finclude/net/mac80211.h ieee80211_unregister_hw -!Finclude/net/mac80211.h ieee80211_free_hw - </chapter> - - <chapter id="phy-handling"> - <title>PHY configuration</title> - <para>TBD</para> - <para> - This chapter should describe PHY handling including - start/stop callbacks and the various structures used. - </para> -!Finclude/net/mac80211.h ieee80211_conf -!Finclude/net/mac80211.h ieee80211_conf_flags - </chapter> - - <chapter id="iface-handling"> - <title>Virtual interfaces</title> - <para>TBD</para> - <para> - This chapter should describe virtual interface basics - that are relevant to the driver (VLANs, MGMT etc are not.) - It should explain the use of the add_iface/remove_iface - callbacks as well as the interface configuration callbacks. - </para> - <para>Things related to AP mode should be discussed there.</para> - <para> - Things related to supporting multiple interfaces should be - in the appropriate chapter, a BIG FAT note should be here about - this though and the recommendation to allow only a single - interface in STA mode at first! - </para> -!Finclude/net/mac80211.h ieee80211_vif - </chapter> - - <chapter id="rx-tx"> - <title>Receive and transmit processing</title> - <sect1> - <title>what should be here</title> - <para>TBD</para> - <para> - This should describe the receive and transmit - paths in mac80211/the drivers as well as - transmit status handling. - </para> - </sect1> - <sect1> - <title>Frame format</title> -!Pinclude/net/mac80211.h Frame format - </sect1> - <sect1> - <title>Packet alignment</title> -!Pnet/mac80211/rx.c Packet alignment - </sect1> - <sect1> - <title>Calling into mac80211 from interrupts</title> -!Pinclude/net/mac80211.h Calling mac80211 from interrupts - </sect1> - <sect1> - <title>functions/definitions</title> -!Finclude/net/mac80211.h ieee80211_rx_status -!Finclude/net/mac80211.h mac80211_rx_flags -!Finclude/net/mac80211.h mac80211_tx_info_flags -!Finclude/net/mac80211.h mac80211_tx_control_flags -!Finclude/net/mac80211.h mac80211_rate_control_flags -!Finclude/net/mac80211.h ieee80211_tx_rate -!Finclude/net/mac80211.h ieee80211_tx_info -!Finclude/net/mac80211.h ieee80211_tx_info_clear_status -!Finclude/net/mac80211.h ieee80211_rx -!Finclude/net/mac80211.h ieee80211_rx_ni -!Finclude/net/mac80211.h ieee80211_rx_irqsafe -!Finclude/net/mac80211.h ieee80211_tx_status -!Finclude/net/mac80211.h ieee80211_tx_status_ni -!Finclude/net/mac80211.h ieee80211_tx_status_irqsafe -!Finclude/net/mac80211.h ieee80211_rts_get -!Finclude/net/mac80211.h ieee80211_rts_duration -!Finclude/net/mac80211.h ieee80211_ctstoself_get -!Finclude/net/mac80211.h ieee80211_ctstoself_duration -!Finclude/net/mac80211.h ieee80211_generic_frame_duration -!Finclude/net/mac80211.h ieee80211_wake_queue -!Finclude/net/mac80211.h ieee80211_stop_queue -!Finclude/net/mac80211.h ieee80211_wake_queues -!Finclude/net/mac80211.h ieee80211_stop_queues -!Finclude/net/mac80211.h ieee80211_queue_stopped - </sect1> - </chapter> - - <chapter id="filters"> - <title>Frame filtering</title> -!Pinclude/net/mac80211.h Frame filtering -!Finclude/net/mac80211.h ieee80211_filter_flags - </chapter> - - <chapter id="workqueue"> - <title>The mac80211 workqueue</title> -!Pinclude/net/mac80211.h mac80211 workqueue -!Finclude/net/mac80211.h ieee80211_queue_work -!Finclude/net/mac80211.h ieee80211_queue_delayed_work - </chapter> - </part> - - <part id="advanced"> - <title>Advanced driver interface</title> - <partintro> - <para> - Information contained within this part of the book is - of interest only for advanced interaction of mac80211 - with drivers to exploit more hardware capabilities and - improve performance. - </para> - </partintro> - - <chapter id="led-support"> - <title>LED support</title> - <para> - Mac80211 supports various ways of blinking LEDs. Wherever possible, - device LEDs should be exposed as LED class devices and hooked up to - the appropriate trigger, which will then be triggered appropriately - by mac80211. - </para> -!Finclude/net/mac80211.h ieee80211_get_tx_led_name -!Finclude/net/mac80211.h ieee80211_get_rx_led_name -!Finclude/net/mac80211.h ieee80211_get_assoc_led_name -!Finclude/net/mac80211.h ieee80211_get_radio_led_name -!Finclude/net/mac80211.h ieee80211_tpt_blink -!Finclude/net/mac80211.h ieee80211_tpt_led_trigger_flags -!Finclude/net/mac80211.h ieee80211_create_tpt_led_trigger - </chapter> - - <chapter id="hardware-crypto-offload"> - <title>Hardware crypto acceleration</title> -!Pinclude/net/mac80211.h Hardware crypto acceleration - <!-- intentionally multiple !F lines to get proper order --> -!Finclude/net/mac80211.h set_key_cmd -!Finclude/net/mac80211.h ieee80211_key_conf -!Finclude/net/mac80211.h ieee80211_key_flags -!Finclude/net/mac80211.h ieee80211_get_tkip_p1k -!Finclude/net/mac80211.h ieee80211_get_tkip_p1k_iv -!Finclude/net/mac80211.h ieee80211_get_tkip_p2k - </chapter> - - <chapter id="powersave"> - <title>Powersave support</title> -!Pinclude/net/mac80211.h Powersave support - </chapter> - - <chapter id="beacon-filter"> - <title>Beacon filter support</title> -!Pinclude/net/mac80211.h Beacon filter support -!Finclude/net/mac80211.h ieee80211_beacon_loss - </chapter> - - <chapter id="qos"> - <title>Multiple queues and QoS support</title> - <para>TBD</para> -!Finclude/net/mac80211.h ieee80211_tx_queue_params - </chapter> - - <chapter id="AP"> - <title>Access point mode support</title> - <para>TBD</para> - <para>Some parts of the if_conf should be discussed here instead</para> - <para> - Insert notes about VLAN interfaces with hw crypto here or - in the hw crypto chapter. - </para> - <section id="ps-client"> - <title>support for powersaving clients</title> -!Pinclude/net/mac80211.h AP support for powersaving clients -!Finclude/net/mac80211.h ieee80211_get_buffered_bc -!Finclude/net/mac80211.h ieee80211_beacon_get -!Finclude/net/mac80211.h ieee80211_sta_eosp -!Finclude/net/mac80211.h ieee80211_frame_release_type -!Finclude/net/mac80211.h ieee80211_sta_ps_transition -!Finclude/net/mac80211.h ieee80211_sta_ps_transition_ni -!Finclude/net/mac80211.h ieee80211_sta_set_buffered -!Finclude/net/mac80211.h ieee80211_sta_block_awake - </section> - </chapter> - - <chapter id="multi-iface"> - <title>Supporting multiple virtual interfaces</title> - <para>TBD</para> - <para> - Note: WDS with identical MAC address should almost always be OK - </para> - <para> - Insert notes about having multiple virtual interfaces with - different MAC addresses here, note which configurations are - supported by mac80211, add notes about supporting hw crypto - with it. - </para> -!Finclude/net/mac80211.h ieee80211_iterate_active_interfaces -!Finclude/net/mac80211.h ieee80211_iterate_active_interfaces_atomic - </chapter> - - <chapter id="station-handling"> - <title>Station handling</title> - <para>TODO</para> -!Finclude/net/mac80211.h ieee80211_sta -!Finclude/net/mac80211.h sta_notify_cmd -!Finclude/net/mac80211.h ieee80211_find_sta -!Finclude/net/mac80211.h ieee80211_find_sta_by_ifaddr - </chapter> - - <chapter id="hardware-scan-offload"> - <title>Hardware scan offload</title> - <para>TBD</para> -!Finclude/net/mac80211.h ieee80211_scan_completed - </chapter> - - <chapter id="aggregation"> - <title>Aggregation</title> - <sect1> - <title>TX A-MPDU aggregation</title> -!Pnet/mac80211/agg-tx.c TX A-MPDU aggregation -!Cnet/mac80211/agg-tx.c - </sect1> - <sect1> - <title>RX A-MPDU aggregation</title> -!Pnet/mac80211/agg-rx.c RX A-MPDU aggregation -!Cnet/mac80211/agg-rx.c -!Finclude/net/mac80211.h ieee80211_ampdu_mlme_action - </sect1> - </chapter> - - <chapter id="smps"> - <title>Spatial Multiplexing Powersave (SMPS)</title> -!Pinclude/net/mac80211.h Spatial multiplexing power save -!Finclude/net/mac80211.h ieee80211_request_smps -!Finclude/net/mac80211.h ieee80211_smps_mode - </chapter> - </part> - - <part id="rate-control"> - <title>Rate control interface</title> - <partintro> - <para>TBD</para> - <para> - This part of the book describes the rate control algorithm - interface and how it relates to mac80211 and drivers. - </para> - </partintro> - <chapter id="ratecontrol-api"> - <title>Rate Control API</title> - <para>TBD</para> -!Finclude/net/mac80211.h ieee80211_start_tx_ba_session -!Finclude/net/mac80211.h ieee80211_start_tx_ba_cb_irqsafe -!Finclude/net/mac80211.h ieee80211_stop_tx_ba_session -!Finclude/net/mac80211.h ieee80211_stop_tx_ba_cb_irqsafe -!Finclude/net/mac80211.h ieee80211_rate_control_changed -!Finclude/net/mac80211.h ieee80211_tx_rate_control -!Finclude/net/mac80211.h rate_control_send_low - </chapter> - </part> - - <part id="internal"> - <title>Internals</title> - <partintro> - <para>TBD</para> - <para> - This part of the book describes mac80211 internals. - </para> - </partintro> - - <chapter id="key-handling"> - <title>Key handling</title> - <sect1> - <title>Key handling basics</title> -!Pnet/mac80211/key.c Key handling basics - </sect1> - <sect1> - <title>MORE TBD</title> - <para>TBD</para> - </sect1> - </chapter> - - <chapter id="rx-processing"> - <title>Receive processing</title> - <para>TBD</para> - </chapter> - - <chapter id="tx-processing"> - <title>Transmit processing</title> - <para>TBD</para> - </chapter> - - <chapter id="sta-info"> - <title>Station info handling</title> - <sect1> - <title>Programming information</title> -!Fnet/mac80211/sta_info.h sta_info -!Fnet/mac80211/sta_info.h ieee80211_sta_info_flags - </sect1> - <sect1> - <title>STA information lifetime rules</title> -!Pnet/mac80211/sta_info.c STA information lifetime rules - </sect1> - </chapter> - - <chapter id="aggregation-internals"> - <title>Aggregation</title> -!Fnet/mac80211/sta_info.h sta_ampdu_mlme -!Fnet/mac80211/sta_info.h tid_ampdu_tx -!Fnet/mac80211/sta_info.h tid_ampdu_rx - </chapter> - - <chapter id="synchronisation"> - <title>Synchronisation</title> - <para>TBD</para> - <para>Locking, lots of RCU</para> - </chapter> - </part> - </book> -</set> diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 736f5916daea..fdf8232d0eeb 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -12,7 +12,7 @@ DOCBOOKS := z8530book.xml \ kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \ gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ - 80211.xml debugobjects.xml sh.xml regulator.xml \ + debugobjects.xml sh.xml regulator.xml \ alsa-driver-api.xml writing-an-alsa-driver.xml \ tracepoint.xml w1.xml \ writing_musb_glue_layer.xml crypto-API.xml iio.xml diff --git a/Documentation/Makefile b/Documentation/Makefile index de955e151af8..c2a469112c37 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -1,3 +1 @@ -subdir-y := accounting auxdisplay blackfin \ - filesystems filesystems ia64 laptops mic misc-devices \ - networking pcmcia prctl ptp timers vDSO watchdog +subdir-y := diff --git a/Documentation/accounting/.gitignore b/Documentation/accounting/.gitignore deleted file mode 100644 index 86485203c4ae..000000000000 --- a/Documentation/accounting/.gitignore +++ /dev/null @@ -1 +0,0 @@ -getdelays diff --git a/Documentation/accounting/Makefile b/Documentation/accounting/Makefile deleted file mode 100644 index 7e232cb6fd7d..000000000000 --- a/Documentation/accounting/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# List of programs to build -hostprogs-y := getdelays - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS_getdelays.o += -I$(objtree)/usr/include diff --git a/Documentation/accounting/delay-accounting.txt b/Documentation/accounting/delay-accounting.txt index 8a12f0730c94..042ea59b5853 100644 --- a/Documentation/accounting/delay-accounting.txt +++ b/Documentation/accounting/delay-accounting.txt @@ -54,9 +54,9 @@ are sent to userspace without requiring a command. If it is the last exiting task of a thread group, the per-tgid statistics are also sent. More details are given in the taskstats interface description. -The getdelays.c userspace utility in this directory allows simple commands to -be run and the corresponding delay statistics to be displayed. It also serves -as an example of using the taskstats interface. +The getdelays.c userspace utility in tools/accounting directory allows simple +commands to be run and the corresponding delay statistics to be displayed. It +also serves as an example of using the taskstats interface. Usage ----- diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c deleted file mode 100644 index b5ca536e56a8..000000000000 --- a/Documentation/accounting/getdelays.c +++ /dev/null @@ -1,550 +0,0 @@ -/* getdelays.c - * - * Utility to get per-pid and per-tgid delay accounting statistics - * Also illustrates usage of the taskstats interface - * - * Copyright (C) Shailabh Nagar, IBM Corp. 2005 - * Copyright (C) Balbir Singh, IBM Corp. 2006 - * Copyright (c) Jay Lan, SGI. 2006 - * - * Compile with - * gcc -I/usr/src/linux/include getdelays.c -o getdelays - */ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#include <unistd.h> -#include <poll.h> -#include <string.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <sys/wait.h> -#include <signal.h> - -#include <linux/genetlink.h> -#include <linux/taskstats.h> -#include <linux/cgroupstats.h> - -/* - * Generic macros for dealing with netlink sockets. Might be duplicated - * elsewhere. It is recommended that commercial grade applications use - * libnl or libnetlink and use the interfaces provided by the library - */ -#define GENLMSG_DATA(glh) ((void *)(NLMSG_DATA(glh) + GENL_HDRLEN)) -#define GENLMSG_PAYLOAD(glh) (NLMSG_PAYLOAD(glh, 0) - GENL_HDRLEN) -#define NLA_DATA(na) ((void *)((char*)(na) + NLA_HDRLEN)) -#define NLA_PAYLOAD(len) (len - NLA_HDRLEN) - -#define err(code, fmt, arg...) \ - do { \ - fprintf(stderr, fmt, ##arg); \ - exit(code); \ - } while (0) - -int done; -int rcvbufsz; -char name[100]; -int dbg; -int print_delays; -int print_io_accounting; -int print_task_context_switch_counts; - -#define PRINTF(fmt, arg...) { \ - if (dbg) { \ - printf(fmt, ##arg); \ - } \ - } - -/* Maximum size of response requested or message sent */ -#define MAX_MSG_SIZE 1024 -/* Maximum number of cpus expected to be specified in a cpumask */ -#define MAX_CPUS 32 - -struct msgtemplate { - struct nlmsghdr n; - struct genlmsghdr g; - char buf[MAX_MSG_SIZE]; -}; - -char cpumask[100+6*MAX_CPUS]; - -static void usage(void) -{ - fprintf(stderr, "getdelays [-dilv] [-w logfile] [-r bufsize] " - "[-m cpumask] [-t tgid] [-p pid]\n"); - fprintf(stderr, " -d: print delayacct stats\n"); - fprintf(stderr, " -i: print IO accounting (works only with -p)\n"); - fprintf(stderr, " -l: listen forever\n"); - fprintf(stderr, " -v: debug on\n"); - fprintf(stderr, " -C: container path\n"); -} - -/* - * Create a raw netlink socket and bind - */ -static int create_nl_socket(int protocol) -{ - int fd; - struct sockaddr_nl local; - - fd = socket(AF_NETLINK, SOCK_RAW, protocol); - if (fd < 0) - return -1; - - if (rcvbufsz) - if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, - &rcvbufsz, sizeof(rcvbufsz)) < 0) { - fprintf(stderr, "Unable to set socket rcv buf size to %d\n", - rcvbufsz); - goto error; - } - - memset(&local, 0, sizeof(local)); - local.nl_family = AF_NETLINK; - - if (bind(fd, (struct sockaddr *) &local, sizeof(local)) < 0) - goto error; - - return fd; -error: - close(fd); - return -1; -} - - -static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid, - __u8 genl_cmd, __u16 nla_type, - void *nla_data, int nla_len) -{ - struct nlattr *na; - struct sockaddr_nl nladdr; - int r, buflen; - char *buf; - - struct msgtemplate msg; - - msg.n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN); - msg.n.nlmsg_type = nlmsg_type; - msg.n.nlmsg_flags = NLM_F_REQUEST; - msg.n.nlmsg_seq = 0; - msg.n.nlmsg_pid = nlmsg_pid; - msg.g.cmd = genl_cmd; - msg.g.version = 0x1; - na = (struct nlattr *) GENLMSG_DATA(&msg); - na->nla_type = nla_type; - na->nla_len = nla_len + 1 + NLA_HDRLEN; - memcpy(NLA_DATA(na), nla_data, nla_len); - msg.n.nlmsg_len += NLMSG_ALIGN(na->nla_len); - - buf = (char *) &msg; - buflen = msg.n.nlmsg_len ; - memset(&nladdr, 0, sizeof(nladdr)); - nladdr.nl_family = AF_NETLINK; - while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr, - sizeof(nladdr))) < buflen) { - if (r > 0) { - buf += r; - buflen -= r; - } else if (errno != EAGAIN) - return -1; - } - return 0; -} - - -/* - * Probe the controller in genetlink to find the family id - * for the TASKSTATS family - */ -static int get_family_id(int sd) -{ - struct { - struct nlmsghdr n; - struct genlmsghdr g; - char buf[256]; - } ans; - - int id = 0, rc; - struct nlattr *na; - int rep_len; - - strcpy(name, TASKSTATS_GENL_NAME); - rc = send_cmd(sd, GENL_ID_CTRL, getpid(), CTRL_CMD_GETFAMILY, - CTRL_ATTR_FAMILY_NAME, (void *)name, - strlen(TASKSTATS_GENL_NAME)+1); - if (rc < 0) - return 0; /* sendto() failure? */ - - rep_len = recv(sd, &ans, sizeof(ans), 0); - if (ans.n.nlmsg_type == NLMSG_ERROR || - (rep_len < 0) || !NLMSG_OK((&ans.n), rep_len)) - return 0; - - na = (struct nlattr *) GENLMSG_DATA(&ans); - na = (struct nlattr *) ((char *) na + NLA_ALIGN(na->nla_len)); - if (na->nla_type == CTRL_ATTR_FAMILY_ID) { - id = *(__u16 *) NLA_DATA(na); - } - return id; -} - -#define average_ms(t, c) (t / 1000000ULL / (c ? c : 1)) - -static void print_delayacct(struct taskstats *t) -{ - printf("\n\nCPU %15s%15s%15s%15s%15s\n" - " %15llu%15llu%15llu%15llu%15.3fms\n" - "IO %15s%15s%15s\n" - " %15llu%15llu%15llums\n" - "SWAP %15s%15s%15s\n" - " %15llu%15llu%15llums\n" - "RECLAIM %12s%15s%15s\n" - " %15llu%15llu%15llums\n", - "count", "real total", "virtual total", - "delay total", "delay average", - (unsigned long long)t->cpu_count, - (unsigned long long)t->cpu_run_real_total, - (unsigned long long)t->cpu_run_virtual_total, - (unsigned long long)t->cpu_delay_total, - average_ms((double)t->cpu_delay_total, t->cpu_count), - "count", "delay total", "delay average", - (unsigned long long)t->blkio_count, - (unsigned long long)t->blkio_delay_total, - average_ms(t->blkio_delay_total, t->blkio_count), - "count", "delay total", "delay average", - (unsigned long long)t->swapin_count, - (unsigned long long)t->swapin_delay_total, - average_ms(t->swapin_delay_total, t->swapin_count), - "count", "delay total", "delay average", - (unsigned long long)t->freepages_count, - (unsigned long long)t->freepages_delay_total, - average_ms(t->freepages_delay_total, t->freepages_count)); -} - -static void task_context_switch_counts(struct taskstats *t) -{ - printf("\n\nTask %15s%15s\n" - " %15llu%15llu\n", - "voluntary", "nonvoluntary", - (unsigned long long)t->nvcsw, (unsigned long long)t->nivcsw); -} - -static void print_cgroupstats(struct cgroupstats *c) -{ - printf("sleeping %llu, blocked %llu, running %llu, stopped %llu, " - "uninterruptible %llu\n", (unsigned long long)c->nr_sleeping, - (unsigned long long)c->nr_io_wait, - (unsigned long long)c->nr_running, - (unsigned long long)c->nr_stopped, - (unsigned long long)c->nr_uninterruptible); -} - - -static void print_ioacct(struct taskstats *t) -{ - printf("%s: read=%llu, write=%llu, cancelled_write=%llu\n", - t->ac_comm, - (unsigned long long)t->read_bytes, - (unsigned long long)t->write_bytes, - (unsigned long long)t->cancelled_write_bytes); -} - -int main(int argc, char *argv[]) -{ - int c, rc, rep_len, aggr_len, len2; - int cmd_type = TASKSTATS_CMD_ATTR_UNSPEC; - __u16 id; - __u32 mypid; - - struct nlattr *na; - int nl_sd = -1; - int len = 0; - pid_t tid = 0; - pid_t rtid = 0; - - int fd = 0; - int count = 0; - int write_file = 0; - int maskset = 0; - char *logfile = NULL; - int loop = 0; - int containerset = 0; - char *containerpath = NULL; - int cfd = 0; - int forking = 0; - sigset_t sigset; - - struct msgtemplate msg; - - while (!forking) { - c = getopt(argc, argv, "qdiw:r:m:t:p:vlC:c:"); - if (c < 0) - break; - - switch (c) { - case 'd': - printf("print delayacct stats ON\n"); - print_delays = 1; - break; - case 'i': - printf("printing IO accounting\n"); - print_io_accounting = 1; - break; - case 'q': - printf("printing task/process context switch rates\n"); - print_task_context_switch_counts = 1; - break; - case 'C': - containerset = 1; - containerpath = optarg; - break; - case 'w': - logfile = strdup(optarg); - printf("write to file %s\n", logfile); - write_file = 1; - break; - case 'r': - rcvbufsz = atoi(optarg); - printf("receive buf size %d\n", rcvbufsz); - if (rcvbufsz < 0) - err(1, "Invalid rcv buf size\n"); - break; - case 'm': - strncpy(cpumask, optarg, sizeof(cpumask)); - cpumask[sizeof(cpumask) - 1] = '\0'; - maskset = 1; - printf("cpumask %s maskset %d\n", cpumask, maskset); - break; - case 't': - tid = atoi(optarg); - if (!tid) - err(1, "Invalid tgid\n"); - cmd_type = TASKSTATS_CMD_ATTR_TGID; - break; - case 'p': - tid = atoi(optarg); - if (!tid) - err(1, "Invalid pid\n"); - cmd_type = TASKSTATS_CMD_ATTR_PID; - break; - case 'c': - - /* Block SIGCHLD for sigwait() later */ - if (sigemptyset(&sigset) == -1) - err(1, "Failed to empty sigset"); - if (sigaddset(&sigset, SIGCHLD)) - err(1, "Failed to set sigchld in sigset"); - sigprocmask(SIG_BLOCK, &sigset, NULL); - - /* fork/exec a child */ - tid = fork(); - if (tid < 0) - err(1, "Fork failed\n"); - if (tid == 0) - if (execvp(argv[optind - 1], - &argv[optind - 1]) < 0) - exit(-1); - - /* Set the command type and avoid further processing */ - cmd_type = TASKSTATS_CMD_ATTR_PID; - forking = 1; - break; - case 'v': - printf("debug on\n"); - dbg = 1; - break; - case 'l': - printf("listen forever\n"); - loop = 1; - break; - default: - usage(); - exit(-1); - } - } - - if (write_file) { - fd = open(logfile, O_WRONLY | O_CREAT | O_TRUNC, - S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); - if (fd == -1) { - perror("Cannot open output file\n"); - exit(1); - } - } - - nl_sd = create_nl_socket(NETLINK_GENERIC); - if (nl_sd < 0) - err(1, "error creating Netlink socket\n"); - - - mypid = getpid(); - id = get_family_id(nl_sd); - if (!id) { - fprintf(stderr, "Error getting family id, errno %d\n", errno); - goto err; - } - PRINTF("family id %d\n", id); - - if (maskset) { - rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET, - TASKSTATS_CMD_ATTR_REGISTER_CPUMASK, - &cpumask, strlen(cpumask) + 1); - PRINTF("Sent register cpumask, retval %d\n", rc); - if (rc < 0) { - fprintf(stderr, "error sending register cpumask\n"); - goto err; - } - } - - if (tid && containerset) { - fprintf(stderr, "Select either -t or -C, not both\n"); - goto err; - } - - /* - * If we forked a child, wait for it to exit. Cannot use waitpid() - * as all the delicious data would be reaped as part of the wait - */ - if (tid && forking) { - int sig_received; - sigwait(&sigset, &sig_received); - } - - if (tid) { - rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET, - cmd_type, &tid, sizeof(__u32)); - PRINTF("Sent pid/tgid, retval %d\n", rc); - if (rc < 0) { - fprintf(stderr, "error sending tid/tgid cmd\n"); - goto done; - } - } - - if (containerset) { - cfd = open(containerpath, O_RDONLY); - if (cfd < 0) { - perror("error opening container file"); - goto err; - } - rc = send_cmd(nl_sd, id, mypid, CGROUPSTATS_CMD_GET, - CGROUPSTATS_CMD_ATTR_FD, &cfd, sizeof(__u32)); - if (rc < 0) { - perror("error sending cgroupstats command"); - goto err; - } - } - if (!maskset && !tid && !containerset) { - usage(); - goto err; - } - - do { - rep_len = recv(nl_sd, &msg, sizeof(msg), 0); - PRINTF("received %d bytes\n", rep_len); - - if (rep_len < 0) { - fprintf(stderr, "nonfatal reply error: errno %d\n", - errno); - continue; - } - if (msg.n.nlmsg_type == NLMSG_ERROR || - !NLMSG_OK((&msg.n), rep_len)) { - struct nlmsgerr *err = NLMSG_DATA(&msg); - fprintf(stderr, "fatal reply error, errno %d\n", - err->error); - goto done; - } - - PRINTF("nlmsghdr size=%zu, nlmsg_len=%d, rep_len=%d\n", - sizeof(struct nlmsghdr), msg.n.nlmsg_len, rep_len); - - - rep_len = GENLMSG_PAYLOAD(&msg.n); - - na = (struct nlattr *) GENLMSG_DATA(&msg); - len = 0; - while (len < rep_len) { - len += NLA_ALIGN(na->nla_len); - switch (na->nla_type) { - case TASKSTATS_TYPE_AGGR_TGID: - /* Fall through */ - case TASKSTATS_TYPE_AGGR_PID: - aggr_len = NLA_PAYLOAD(na->nla_len); - len2 = 0; - /* For nested attributes, na follows */ - na = (struct nlattr *) NLA_DATA(na); - done = 0; - while (len2 < aggr_len) { - switch (na->nla_type) { - case TASKSTATS_TYPE_PID: - rtid = *(int *) NLA_DATA(na); - if (print_delays) - printf("PID\t%d\n", rtid); - break; - case TASKSTATS_TYPE_TGID: - rtid = *(int *) NLA_DATA(na); - if (print_delays) - printf("TGID\t%d\n", rtid); - break; - case TASKSTATS_TYPE_STATS: - count++; - if (print_delays) - print_delayacct((struct taskstats *) NLA_DATA(na)); - if (print_io_accounting) - print_ioacct((struct taskstats *) NLA_DATA(na)); - if (print_task_context_switch_counts) - task_context_switch_counts((struct taskstats *) NLA_DATA(na)); - if (fd) { - if (write(fd, NLA_DATA(na), na->nla_len) < 0) { - err(1,"write error\n"); - } - } - if (!loop) - goto done; - break; - case TASKSTATS_TYPE_NULL: - break; - default: - fprintf(stderr, "Unknown nested" - " nla_type %d\n", - na->nla_type); - break; - } - len2 += NLA_ALIGN(na->nla_len); - na = (struct nlattr *)((char *)na + - NLA_ALIGN(na->nla_len)); - } - break; - - case CGROUPSTATS_TYPE_CGROUP_STATS: - print_cgroupstats(NLA_DATA(na)); - break; - default: - fprintf(stderr, "Unknown nla_type %d\n", - na->nla_type); - case TASKSTATS_TYPE_NULL: - break; - } - na = (struct nlattr *) (GENLMSG_DATA(&msg) + len); - } - } while (loop); -done: - if (maskset) { - rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET, - TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK, - &cpumask, strlen(cpumask) + 1); - printf("Sent deregister mask, retval %d\n", rc); - if (rc < 0) - err(rc, "error sending deregister cpumask\n"); - } -err: - close(nl_sd); - if (fd) - close(fd); - if (cfd) - close(cfd); - return 0; -} diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX index dea011c8d7c7..b6e69fd371c4 100644 --- a/Documentation/arm/00-INDEX +++ b/Documentation/arm/00-INDEX @@ -8,8 +8,6 @@ Interrupts - ARM Interrupt subsystem documentation IXP4xx - Intel IXP4xx Network processor. -Makefile - - Build sourcefiles as part of the Documentation-build for arm Netwinder - Netwinder specific documentation Porting diff --git a/Documentation/auxdisplay/.gitignore b/Documentation/auxdisplay/.gitignore deleted file mode 100644 index 7af222860a96..000000000000 --- a/Documentation/auxdisplay/.gitignore +++ /dev/null @@ -1 +0,0 @@ -cfag12864b-example diff --git a/Documentation/auxdisplay/Makefile b/Documentation/auxdisplay/Makefile deleted file mode 100644 index ada4dac99ef4..000000000000 --- a/Documentation/auxdisplay/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# List of programs to build -hostprogs-y := cfag12864b-example - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS_cfag12864b-example.o += -I$(objtree)/usr/include diff --git a/Documentation/auxdisplay/cfag12864b b/Documentation/auxdisplay/cfag12864b index eb7be393a510..12fd51b8de75 100644 --- a/Documentation/auxdisplay/cfag12864b +++ b/Documentation/auxdisplay/cfag12864b @@ -101,5 +101,5 @@ Although the LCD won't get updated until the next refresh time arrives. Also, you can mmap the framebuffer: open & mmap, munmap & close... which is the best option for most uses. -Check Documentation/auxdisplay/cfag12864b-example.c +Check samples/auxdisplay/cfag12864b-example.c for a real working userspace complete program with usage examples. diff --git a/Documentation/auxdisplay/cfag12864b-example.c b/Documentation/auxdisplay/cfag12864b-example.c deleted file mode 100644 index e7823ffb1ca0..000000000000 --- a/Documentation/auxdisplay/cfag12864b-example.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Filename: cfag12864b-example.c - * Version: 0.1.0 - * Description: cfag12864b LCD userspace example program - * License: GPLv2 - * - * Author: Copyright (C) Miguel Ojeda Sandonis - * Date: 2006-10-31 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 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 for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/* - * ------------------------ - * start of cfag12864b code - * ------------------------ - */ - -#include <string.h> -#include <fcntl.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> - -#define CFAG12864B_WIDTH (128) -#define CFAG12864B_HEIGHT (64) -#define CFAG12864B_SIZE (128 * 64 / 8) -#define CFAG12864B_BPB (8) -#define CFAG12864B_ADDRESS(x, y) ((y) * CFAG12864B_WIDTH / \ - CFAG12864B_BPB + (x) / CFAG12864B_BPB) -#define CFAG12864B_BIT(n) (((unsigned char) 1) << (n)) - -#undef CFAG12864B_DOCHECK -#ifdef CFAG12864B_DOCHECK - #define CFAG12864B_CHECK(x, y) ((x) < CFAG12864B_WIDTH && \ - (y) < CFAG12864B_HEIGHT) -#else - #define CFAG12864B_CHECK(x, y) (1) -#endif - -int cfag12864b_fd; -unsigned char * cfag12864b_mem; -unsigned char cfag12864b_buffer[CFAG12864B_SIZE]; - -/* - * init a cfag12864b framebuffer device - * - * No error: return = 0 - * Unable to open: return = -1 - * Unable to mmap: return = -2 - */ -static int cfag12864b_init(char *path) -{ - cfag12864b_fd = open(path, O_RDWR); - if (cfag12864b_fd == -1) - return -1; - - cfag12864b_mem = mmap(0, CFAG12864B_SIZE, PROT_READ | PROT_WRITE, - MAP_SHARED, cfag12864b_fd, 0); - if (cfag12864b_mem == MAP_FAILED) { - close(cfag12864b_fd); - return -2; - } - - return 0; -} - -/* - * exit a cfag12864b framebuffer device - */ -static void cfag12864b_exit(void) -{ - munmap(cfag12864b_mem, CFAG12864B_SIZE); - close(cfag12864b_fd); -} - -/* - * set (x, y) pixel - */ -static void cfag12864b_set(unsigned char x, unsigned char y) -{ - if (CFAG12864B_CHECK(x, y)) - cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] |= - CFAG12864B_BIT(x % CFAG12864B_BPB); -} - -/* - * unset (x, y) pixel - */ -static void cfag12864b_unset(unsigned char x, unsigned char y) -{ - if (CFAG12864B_CHECK(x, y)) - cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &= - ~CFAG12864B_BIT(x % CFAG12864B_BPB); -} - -/* - * is set (x, y) pixel? - * - * Pixel off: return = 0 - * Pixel on: return = 1 - */ -static unsigned char cfag12864b_isset(unsigned char x, unsigned char y) -{ - if (CFAG12864B_CHECK(x, y)) - if (cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] & - CFAG12864B_BIT(x % CFAG12864B_BPB)) - return 1; - - return 0; -} - -/* - * not (x, y) pixel - */ -static void cfag12864b_not(unsigned char x, unsigned char y) -{ - if (cfag12864b_isset(x, y)) - cfag12864b_unset(x, y); - else - cfag12864b_set(x, y); -} - -/* - * fill (set all pixels) - */ -static void cfag12864b_fill(void) -{ - unsigned short i; - - for (i = 0; i < CFAG12864B_SIZE; i++) - cfag12864b_buffer[i] = 0xFF; -} - -/* - * clear (unset all pixels) - */ -static void cfag12864b_clear(void) -{ - unsigned short i; - - for (i = 0; i < CFAG12864B_SIZE; i++) - cfag12864b_buffer[i] = 0; -} - -/* - * format a [128*64] matrix - * - * Pixel off: src[i] = 0 - * Pixel on: src[i] > 0 - */ -static void cfag12864b_format(unsigned char * matrix) -{ - unsigned char i, j, n; - - for (i = 0; i < CFAG12864B_HEIGHT; i++) - for (j = 0; j < CFAG12864B_WIDTH / CFAG12864B_BPB; j++) { - cfag12864b_buffer[i * CFAG12864B_WIDTH / CFAG12864B_BPB + - j] = 0; - for (n = 0; n < CFAG12864B_BPB; n++) - if (matrix[i * CFAG12864B_WIDTH + - j * CFAG12864B_BPB + n]) - cfag12864b_buffer[i * CFAG12864B_WIDTH / - CFAG12864B_BPB + j] |= - CFAG12864B_BIT(n); - } -} - -/* - * blit buffer to lcd - */ -static void cfag12864b_blit(void) -{ - memcpy(cfag12864b_mem, cfag12864b_buffer, CFAG12864B_SIZE); -} - -/* - * ---------------------- - * end of cfag12864b code - * ---------------------- - */ - -#include <stdio.h> - -#define EXAMPLES 6 - -static void example(unsigned char n) -{ - unsigned short i, j; - unsigned char matrix[CFAG12864B_WIDTH * CFAG12864B_HEIGHT]; - - if (n > EXAMPLES) - return; - - printf("Example %i/%i - ", n, EXAMPLES); - - switch (n) { - case 1: - printf("Draw points setting bits"); - cfag12864b_clear(); - for (i = 0; i < CFAG12864B_WIDTH; i += 2) - for (j = 0; j < CFAG12864B_HEIGHT; j += 2) - cfag12864b_set(i, j); - break; - - case 2: - printf("Clear the LCD"); - cfag12864b_clear(); - break; - - case 3: - printf("Draw rows formatting a [128*64] matrix"); - memset(matrix, 0, CFAG12864B_WIDTH * CFAG12864B_HEIGHT); - for (i = 0; i < CFAG12864B_WIDTH; i++) - for (j = 0; j < CFAG12864B_HEIGHT; j += 2) - matrix[j * CFAG12864B_WIDTH + i] = 1; - cfag12864b_format(matrix); - break; - - case 4: - printf("Fill the lcd"); - cfag12864b_fill(); - break; - - case 5: - printf("Draw columns unsetting bits"); - for (i = 0; i < CFAG12864B_WIDTH; i += 2) - for (j = 0; j < CFAG12864B_HEIGHT; j++) - cfag12864b_unset(i, j); - break; - - case 6: - printf("Do negative not-ing all bits"); - for (i = 0; i < CFAG12864B_WIDTH; i++) - for (j = 0; j < CFAG12864B_HEIGHT; j ++) - cfag12864b_not(i, j); - break; - } - - puts(" - [Press Enter]"); -} - -int main(int argc, char *argv[]) -{ - unsigned char n; - - if (argc != 2) { - printf( - "Sintax: %s fbdev\n" - "Usually: /dev/fb0, /dev/fb1...\n", argv[0]); - return -1; - } - - if (cfag12864b_init(argv[1])) { - printf("Can't init %s fbdev\n", argv[1]); - return -2; - } - - for (n = 1; n <= EXAMPLES; n++) { - example(n); - cfag12864b_blit(); - while (getchar() != '\n'); - } - - cfag12864b_exit(); - - return 0; -} diff --git a/Documentation/blackfin/00-INDEX b/Documentation/blackfin/00-INDEX index c54fcdd4ae9f..265a1effebde 100644 --- a/Documentation/blackfin/00-INDEX +++ b/Documentation/blackfin/00-INDEX @@ -1,10 +1,6 @@ 00-INDEX - This file -Makefile - - Makefile for gptimers example file. bfin-gpio-notes.txt - Notes in developing/using bfin-gpio driver. bfin-spi-notes.txt - Notes for using bfin spi bus driver. -gptimers-example.c - - gptimers example diff --git a/Documentation/blackfin/Makefile b/Documentation/blackfin/Makefile deleted file mode 100644 index 6782c58fbc29..000000000000 --- a/Documentation/blackfin/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -ifneq ($(CONFIG_BLACKFIN),) -ifneq ($(CONFIG_BFIN_GPTIMERS),) -obj-m := gptimers-example.o -endif -endif diff --git a/Documentation/blackfin/gptimers-example.c b/Documentation/blackfin/gptimers-example.c deleted file mode 100644 index 283eba993d9d..000000000000 --- a/Documentation/blackfin/gptimers-example.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Simple gptimers example - * http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:gptimers - * - * Copyright 2007-2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <linux/interrupt.h> -#include <linux/module.h> - -#include <asm/gptimers.h> -#include <asm/portmux.h> - -/* ... random driver includes ... */ - -#define DRIVER_NAME "gptimer_example" - -#ifdef IRQ_TIMER5 -#define SAMPLE_IRQ_TIMER IRQ_TIMER5 -#else -#define SAMPLE_IRQ_TIMER IRQ_TIMER2 -#endif - -struct gptimer_data { - uint32_t period, width; -}; -static struct gptimer_data data; - -/* ... random driver state ... */ - -static irqreturn_t gptimer_example_irq(int irq, void *dev_id) -{ - struct gptimer_data *data = dev_id; - - /* make sure it was our timer which caused the interrupt */ - if (!get_gptimer_intr(TIMER5_id)) - return IRQ_NONE; - - /* read the width/period values that were captured for the waveform */ - data->width = get_gptimer_pwidth(TIMER5_id); - data->period = get_gptimer_period(TIMER5_id); - - /* acknowledge the interrupt */ - clear_gptimer_intr(TIMER5_id); - - /* tell the upper layers we took care of things */ - return IRQ_HANDLED; -} - -/* ... random driver code ... */ - -static int __init gptimer_example_init(void) -{ - int ret; - - /* grab the peripheral pins */ - ret = peripheral_request(P_TMR5, DRIVER_NAME); - if (ret) { - printk(KERN_NOTICE DRIVER_NAME ": peripheral request failed\n"); - return ret; - } - - /* grab the IRQ for the timer */ - ret = request_irq(SAMPLE_IRQ_TIMER, gptimer_example_irq, - IRQF_SHARED, DRIVER_NAME, &data); - if (ret) { - printk(KERN_NOTICE DRIVER_NAME ": IRQ request failed\n"); - peripheral_free(P_TMR5); - return ret; - } - - /* setup the timer and enable it */ - set_gptimer_config(TIMER5_id, - WDTH_CAP | PULSE_HI | PERIOD_CNT | IRQ_ENA); - enable_gptimers(TIMER5bit); - - return 0; -} -module_init(gptimer_example_init); - -static void __exit gptimer_example_exit(void) -{ - disable_gptimers(TIMER5bit); - free_irq(SAMPLE_IRQ_TIMER, &data); - peripheral_free(P_TMR5); -} -module_exit(gptimer_example_exit); - -MODULE_LICENSE("BSD"); diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index e5b6497116f4..c75b64a85859 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -309,3 +309,4 @@ Version History with a reshape in progress. 1.9.0 Add support for RAID level takeover/reshape/region size and set size reduction. +1.9.1 Fix activation of existing RAID 4/10 mapped devices diff --git a/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt b/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt new file mode 100644 index 000000000000..b69bb68992fd --- /dev/null +++ b/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt @@ -0,0 +1,17 @@ +Binding for ASCII LCD displays on Imagination Technologies boards + +Required properties: +- compatible : should be one of: + "img,boston-lcd" + "mti,malta-lcd" + "mti,sead3-lcd" + +Required properties for "img,boston-lcd": +- reg : memory region locating the device registers + +Required properties for "mti,malta-lcd" or "mti,sead3-lcd": +- regmap: phandle of the system controller containing the LCD registers +- offset: offset in bytes to the LCD registers within the system controller + +The layout of the registers & properties of the display are determined +from the compatible string, making this binding somewhat trivial. diff --git a/Documentation/devicetree/bindings/clock/uniphier-clock.txt b/Documentation/devicetree/bindings/clock/uniphier-clock.txt index c7179d3b5c33..812163060fa3 100644 --- a/Documentation/devicetree/bindings/clock/uniphier-clock.txt +++ b/Documentation/devicetree/bindings/clock/uniphier-clock.txt @@ -24,7 +24,7 @@ Example: reg = <0x61840000 0x4000>; clock { - compatible = "socionext,uniphier-ld20-clock"; + compatible = "socionext,uniphier-ld11-clock"; #clock-cells = <1>; }; @@ -43,8 +43,8 @@ Provided clocks: 21: USB3 ch1 PHY1 -Media I/O (MIO) clock ---------------------- +Media I/O (MIO) clock, SD clock +------------------------------- Required properties: - compatible: should be one of the following: @@ -52,10 +52,10 @@ Required properties: "socionext,uniphier-ld4-mio-clock" - for LD4 SoC. "socionext,uniphier-pro4-mio-clock" - for Pro4 SoC. "socionext,uniphier-sld8-mio-clock" - for sLD8 SoC. - "socionext,uniphier-pro5-mio-clock" - for Pro5 SoC. - "socionext,uniphier-pxs2-mio-clock" - for PXs2/LD6b SoC. + "socionext,uniphier-pro5-sd-clock" - for Pro5 SoC. + "socionext,uniphier-pxs2-sd-clock" - for PXs2/LD6b SoC. "socionext,uniphier-ld11-mio-clock" - for LD11 SoC. - "socionext,uniphier-ld20-mio-clock" - for LD20 SoC. + "socionext,uniphier-ld20-sd-clock" - for LD20 SoC. - #clock-cells: should be 1. Example: @@ -66,7 +66,7 @@ Example: reg = <0x59810000 0x800>; clock { - compatible = "socionext,uniphier-ld20-mio-clock"; + compatible = "socionext,uniphier-ld11-mio-clock"; #clock-cells = <1>; }; @@ -112,7 +112,7 @@ Example: reg = <0x59820000 0x200>; clock { - compatible = "socionext,uniphier-ld20-peri-clock"; + compatible = "socionext,uniphier-ld11-peri-clock"; #clock-cells = <1>; }; diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt index f31b2ad1552b..5fa691e6f638 100644 --- a/Documentation/devicetree/bindings/i2c/i2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c.txt @@ -32,6 +32,14 @@ wants to support one of the below features, it should adapt the bindings below. - clock-frequency frequency of bus clock in Hz. +- i2c-bus + For I2C adapters that have child nodes that are a mixture of both I2C + devices and non-I2C devices, the 'i2c-bus' subnode can be used for + populating I2C devices. If the 'i2c-bus' subnode is present, only + subnodes of this will be considered as I2C slaves. The properties, + '#address-cells' and '#size-cells' must be defined under this subnode + if present. + - i2c-scl-falling-time-ns Number of nanoseconds the SCL signal takes to fall; t(f) in the I2C specification. diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 1416c6a0d2cd..fbbad6446741 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -51,7 +51,6 @@ fsl,sgtl5000 SGTL5000: Ultra Low-Power Audio Codec gmt,g751 G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface infineon,slb9635tt Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz) infineon,slb9645tt Infineon SLB9645 I2C TPM (new protocol, max 400khz) -isil,isl12057 Intersil ISL12057 I2C RTC Chip isil,isl29028 Intersil ISL29028 Ambient Light and Proximity Sensor maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs diff --git a/Documentation/devicetree/bindings/infiniband/hisilicon-hns-roce.txt b/Documentation/devicetree/bindings/infiniband/hisilicon-hns-roce.txt index f97993be2dcb..d3b273e4336a 100644 --- a/Documentation/devicetree/bindings/infiniband/hisilicon-hns-roce.txt +++ b/Documentation/devicetree/bindings/infiniband/hisilicon-hns-roce.txt @@ -14,6 +14,7 @@ length of memory mapped region. representing a ethernet device. - dsaf-handle: phandle, specifies a reference to a node representing a dsaf device. +- node_guid: a number that uniquely identifies a device or component - #address-cells: must be 2 - #size-cells: must be 2 Optional properties: @@ -32,6 +33,7 @@ Example: dma-coherent; eth-handle = <ð2 ð3 ð4 ð5 ð6 ð7>; dsaf-handle = <&soc0_dsa>; + node-guid = [00 9A CD 00 00 01 02 03]; #address-cells = <2>; #size-cells = <2>; interrupt-parent = <&mbigen_dsa>; diff --git a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt new file mode 100644 index 000000000000..7b8944c2cb31 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt @@ -0,0 +1,21 @@ +* MELFAS MIP4 Touchscreen + +Required properties: +- compatible: must be "melfas,mip4_ts" +- reg: I2C slave address of the chip (0x48 or 0x34) +- interrupt-parent: interrupt controller to which the chip is connected +- interrupts: interrupt to which the chip is connected + +Optional properties: +- ce-gpios: GPIO connected to the CE (chip enable) pin of the chip + +Example: + i2c@00000000 { + touchscreen: melfas_mip4@48 { + compatible = "melfas,mip4_ts"; + reg = <0x48>; + interrupt-parent = <&gpio>; + interrupts = <0 IRQ_TYPE_EDGE_FALLING>; + ce-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>; + }; + }; diff --git a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-bt-bmc.txt b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-bt-bmc.txt new file mode 100644 index 000000000000..fbbacd958240 --- /dev/null +++ b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-bt-bmc.txt @@ -0,0 +1,23 @@ +* Aspeed BT (Block Transfer) IPMI interface + +The Aspeed SOCs (AST2400 and AST2500) are commonly used as BMCs +(BaseBoard Management Controllers) and the BT interface can be used to +perform in-band IPMI communication with their host. + +Required properties: + +- compatible : should be "aspeed,ast2400-bt-bmc" +- reg: physical address and size of the registers + +Optional properties: + +- interrupts: interrupt generated by the BT interface. without an + interrupt, the driver will operate in poll mode. + +Example: + + ibt@1e789140 { + compatible = "aspeed,ast2400-bt-bmc"; + reg = <0x1e789140 0x18>; + interrupts = <8>; + }; diff --git a/Documentation/devicetree/bindings/ipmi.txt b/Documentation/devicetree/bindings/ipmi/ipmi-smic.txt index d5f1a877ed3e..d5f1a877ed3e 100644 --- a/Documentation/devicetree/bindings/ipmi.txt +++ b/Documentation/devicetree/bindings/ipmi/ipmi-smic.txt diff --git a/Documentation/devicetree/bindings/mips/brcm/soc.txt b/Documentation/devicetree/bindings/mips/brcm/soc.txt index 4a7e030e4f9b..e4e1cd91fb1f 100644 --- a/Documentation/devicetree/bindings/mips/brcm/soc.txt +++ b/Documentation/devicetree/bindings/mips/brcm/soc.txt @@ -2,9 +2,9 @@ Required properties: -- compatible: "brcm,bcm3384", "brcm,bcm33843" +- compatible: "brcm,bcm3368", "brcm,bcm3384", "brcm,bcm33843" "brcm,bcm3384-viper", "brcm,bcm33843-viper" - "brcm,bcm6328", "brcm,bcm6358", "brcm,bcm6368", + "brcm,bcm6328", "brcm,bcm6358", "brcm,bcm6362", "brcm,bcm6368", "brcm,bcm63168", "brcm,bcm63268", "brcm,bcm7125", "brcm,bcm7346", "brcm,bcm7358", "brcm,bcm7360", "brcm,bcm7362", "brcm,bcm7420", "brcm,bcm7425" diff --git a/Documentation/devicetree/bindings/net/marvell-orion-net.txt b/Documentation/devicetree/bindings/net/marvell-orion-net.txt index bce52b2ec55e..6fd988c84c4f 100644 --- a/Documentation/devicetree/bindings/net/marvell-orion-net.txt +++ b/Documentation/devicetree/bindings/net/marvell-orion-net.txt @@ -49,6 +49,7 @@ Optional port properties: and - phy-handle: See ethernet.txt file in the same directory. + - phy-mode: See ethernet.txt file in the same directory. or diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt index 5e60ad18f147..2ad18c4ea55c 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt @@ -43,7 +43,9 @@ aspeed,ast2500-pinctrl, aspeed,g5-pinctrl: GPID0 GPID2 GPIE0 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4 I2C5 I2C6 I2C7 I2C8 I2C9 MAC1LINK MDIO1 MDIO2 OSCCLK PEWAKE PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 -RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 +RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 SPI1DEBUG SPI1PASSTHRU TIMER4 TIMER5 TIMER6 +TIMER7 TIMER8 VGABIOSROM + Examples: diff --git a/Documentation/devicetree/bindings/reset/uniphier-reset.txt b/Documentation/devicetree/bindings/reset/uniphier-reset.txt index e6bbfccd56c3..5020524cddeb 100644 --- a/Documentation/devicetree/bindings/reset/uniphier-reset.txt +++ b/Documentation/devicetree/bindings/reset/uniphier-reset.txt @@ -6,25 +6,25 @@ System reset Required properties: - compatible: should be one of the following: - "socionext,uniphier-sld3-reset" - for PH1-sLD3 SoC. - "socionext,uniphier-ld4-reset" - for PH1-LD4 SoC. - "socionext,uniphier-pro4-reset" - for PH1-Pro4 SoC. - "socionext,uniphier-sld8-reset" - for PH1-sLD8 SoC. - "socionext,uniphier-pro5-reset" - for PH1-Pro5 SoC. - "socionext,uniphier-pxs2-reset" - for ProXstream2/PH1-LD6b SoC. - "socionext,uniphier-ld11-reset" - for PH1-LD11 SoC. - "socionext,uniphier-ld20-reset" - for PH1-LD20 SoC. + "socionext,uniphier-sld3-reset" - for sLD3 SoC. + "socionext,uniphier-ld4-reset" - for LD4 SoC. + "socionext,uniphier-pro4-reset" - for Pro4 SoC. + "socionext,uniphier-sld8-reset" - for sLD8 SoC. + "socionext,uniphier-pro5-reset" - for Pro5 SoC. + "socionext,uniphier-pxs2-reset" - for PXs2/LD6b SoC. + "socionext,uniphier-ld11-reset" - for LD11 SoC. + "socionext,uniphier-ld20-reset" - for LD20 SoC. - #reset-cells: should be 1. Example: sysctrl@61840000 { - compatible = "socionext,uniphier-ld20-sysctrl", + compatible = "socionext,uniphier-ld11-sysctrl", "simple-mfd", "syscon"; reg = <0x61840000 0x4000>; reset { - compatible = "socionext,uniphier-ld20-reset"; + compatible = "socionext,uniphier-ld11-reset"; #reset-cells = <1>; }; @@ -32,30 +32,30 @@ Example: }; -Media I/O (MIO) reset ---------------------- +Media I/O (MIO) reset, SD reset +------------------------------- Required properties: - compatible: should be one of the following: - "socionext,uniphier-sld3-mio-reset" - for PH1-sLD3 SoC. - "socionext,uniphier-ld4-mio-reset" - for PH1-LD4 SoC. - "socionext,uniphier-pro4-mio-reset" - for PH1-Pro4 SoC. - "socionext,uniphier-sld8-mio-reset" - for PH1-sLD8 SoC. - "socionext,uniphier-pro5-mio-reset" - for PH1-Pro5 SoC. - "socionext,uniphier-pxs2-mio-reset" - for ProXstream2/PH1-LD6b SoC. - "socionext,uniphier-ld11-mio-reset" - for PH1-LD11 SoC. - "socionext,uniphier-ld20-mio-reset" - for PH1-LD20 SoC. + "socionext,uniphier-sld3-mio-reset" - for sLD3 SoC. + "socionext,uniphier-ld4-mio-reset" - for LD4 SoC. + "socionext,uniphier-pro4-mio-reset" - for Pro4 SoC. + "socionext,uniphier-sld8-mio-reset" - for sLD8 SoC. + "socionext,uniphier-pro5-sd-reset" - for Pro5 SoC. + "socionext,uniphier-pxs2-sd-reset" - for PXs2/LD6b SoC. + "socionext,uniphier-ld11-mio-reset" - for LD11 SoC. + "socionext,uniphier-ld20-sd-reset" - for LD20 SoC. - #reset-cells: should be 1. Example: mioctrl@59810000 { - compatible = "socionext,uniphier-ld20-mioctrl", + compatible = "socionext,uniphier-ld11-mioctrl", "simple-mfd", "syscon"; reg = <0x59810000 0x800>; reset { - compatible = "socionext,uniphier-ld20-mio-reset"; + compatible = "socionext,uniphier-ld11-mio-reset"; #reset-cells = <1>; }; @@ -68,24 +68,24 @@ Peripheral reset Required properties: - compatible: should be one of the following: - "socionext,uniphier-ld4-peri-reset" - for PH1-LD4 SoC. - "socionext,uniphier-pro4-peri-reset" - for PH1-Pro4 SoC. - "socionext,uniphier-sld8-peri-reset" - for PH1-sLD8 SoC. - "socionext,uniphier-pro5-peri-reset" - for PH1-Pro5 SoC. - "socionext,uniphier-pxs2-peri-reset" - for ProXstream2/PH1-LD6b SoC. - "socionext,uniphier-ld11-peri-reset" - for PH1-LD11 SoC. - "socionext,uniphier-ld20-peri-reset" - for PH1-LD20 SoC. + "socionext,uniphier-ld4-peri-reset" - for LD4 SoC. + "socionext,uniphier-pro4-peri-reset" - for Pro4 SoC. + "socionext,uniphier-sld8-peri-reset" - for sLD8 SoC. + "socionext,uniphier-pro5-peri-reset" - for Pro5 SoC. + "socionext,uniphier-pxs2-peri-reset" - for PXs2/LD6b SoC. + "socionext,uniphier-ld11-peri-reset" - for LD11 SoC. + "socionext,uniphier-ld20-peri-reset" - for LD20 SoC. - #reset-cells: should be 1. Example: perictrl@59820000 { - compatible = "socionext,uniphier-ld20-perictrl", + compatible = "socionext,uniphier-ld11-perictrl", "simple-mfd", "syscon"; reg = <0x59820000 0x200>; reset { - compatible = "socionext,uniphier-ld20-peri-reset"; + compatible = "socionext,uniphier-ld11-peri-reset"; #reset-cells = <1>; }; diff --git a/Documentation/devicetree/bindings/rtc/dallas,ds1390.txt b/Documentation/devicetree/bindings/rtc/dallas,ds1390.txt index 8e76f2648796..9882b819f173 100644 --- a/Documentation/devicetree/bindings/rtc/dallas,ds1390.txt +++ b/Documentation/devicetree/bindings/rtc/dallas,ds1390.txt @@ -11,7 +11,7 @@ Optional properties: - trickle-diode-disable : Do not use internal trickle charger diode Should be given if internal trickle charger diode should be disabled Example: - ds1390: rtc@68 { + ds1390: rtc@0 { compatible = "dallas,ds1390"; trickle-resistor-ohms = <250>; reg = <0>; diff --git a/Documentation/devicetree/bindings/rtc/epson,rx8900.txt b/Documentation/devicetree/bindings/rtc/epson,rx8900.txt new file mode 100644 index 000000000000..3f61e516ecf6 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/epson,rx8900.txt @@ -0,0 +1,22 @@ +Real Time Clock driver for: + - Epson RX8900 + - Micro Crystal rv8803 + +Required properties: +- compatible: should be: "microcrystal,rv8803" or "epson,rx8900" +- reg : the I2C address of the device for I2C + +Optional properties: +- epson,vdet-disable : boolean, if present will disable voltage detector. + Should be set if no backup battery is used. +- trickle-diode-disable : boolean, if present will disable internal trickle + charger diode + +Example: + + rtc: rtc@32 { + compatible = "epson,rx8900" + reg = <0x32>; + epson,vdet-disable; + trickle-diode-disable; + }; diff --git a/Documentation/devicetree/bindings/rtc/rtc-omap.txt b/Documentation/devicetree/bindings/rtc/rtc-omap.txt index bf7d11ae9bea..bee41f97044e 100644 --- a/Documentation/devicetree/bindings/rtc/rtc-omap.txt +++ b/Documentation/devicetree/bindings/rtc/rtc-omap.txt @@ -18,6 +18,18 @@ Optional properties: through pmic_power_en - clocks: Any internal or external clocks feeding in to rtc - clock-names: Corresponding names of the clocks +- pinctrl-0: a phandle pointing to the pin settings for the device +- pinctrl-names: should be "default" + +Optional subnodes: +- generic pinctrl node + +Required pinctrl subnodes properties: +- pins - Names of ext_wakeup pins to configure + +Optional pinctrl subnodes properties: +- input-enable - Enables ext_wakeup +- ti,active-high - Set input active high (by default active low) Example: @@ -30,4 +42,13 @@ rtc@1c23000 { system-power-controller; clocks = <&clk_32k_rtc>, <&clk_32768_ck>; clock-names = "ext-clk", "int-clk"; + + pinctrl-0 = <&ext_wakeup>; + pinctrl-names = "default"; + + ext_wakeup: ext-wakeup { + pins = "ext_wakeup0"; + input-enable; + ti,active-high; + }; }; diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.txt b/Documentation/devicetree/bindings/serial/cdns,uart.txt index a3eb154c32ca..227bb770b027 100644 --- a/Documentation/devicetree/bindings/serial/cdns,uart.txt +++ b/Documentation/devicetree/bindings/serial/cdns,uart.txt @@ -1,7 +1,9 @@ Binding for Cadence UART Controller Required properties: -- compatible : should be "cdns,uart-r1p8", or "xlnx,xuartps" +- compatible : + Use "xlnx,xuartps","cdns,uart-r1p8" for Zynq-7xxx SoC. + Use "xlnx,zynqmp-uart","cdns,uart-r1p12" for Zynq Ultrascale+ MPSoC. - reg: Should contain UART controller registers location and length. - interrupts: Should contain UART controller interrupts. - clocks: Must contain phandles to the UART clocks diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index 1e4000d83aee..8d27d1a603e7 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -9,6 +9,14 @@ Required properties: - "renesas,scifb-r8a73a4" for R8A73A4 (R-Mobile APE6) SCIFB compatible UART. - "renesas,scifa-r8a7740" for R8A7740 (R-Mobile A1) SCIFA compatible UART. - "renesas,scifb-r8a7740" for R8A7740 (R-Mobile A1) SCIFB compatible UART. + - "renesas,scif-r8a7743" for R8A7743 (RZ/G1M) SCIF compatible UART. + - "renesas,scifa-r8a7743" for R8A7743 (RZ/G1M) SCIFA compatible UART. + - "renesas,scifb-r8a7743" for R8A7743 (RZ/G1M) SCIFB compatible UART. + - "renesas,hscif-r8a7743" for R8A7743 (RZ/G1M) HSCIF compatible UART. + - "renesas,scif-r8a7745" for R8A7745 (RZ/G1E) SCIF compatible UART. + - "renesas,scifa-r8a7745" for R8A7745 (RZ/G1E) SCIFA compatible UART. + - "renesas,scifb-r8a7745" for R8A7745 (RZ/G1E) SCIFB compatible UART. + - "renesas,hscif-r8a7745" for R8A7745 (RZ/G1E) HSCIF compatible UART. - "renesas,scif-r8a7778" for R8A7778 (R-Car M1) SCIF compatible UART. - "renesas,scif-r8a7779" for R8A7779 (R-Car H1) SCIF compatible UART. - "renesas,scif-r8a7790" for R8A7790 (R-Car H2) SCIF compatible UART. diff --git a/Documentation/devicetree/bindings/timer/jcore,pit.txt b/Documentation/devicetree/bindings/timer/jcore,pit.txt new file mode 100644 index 000000000000..af5dd35469d7 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/jcore,pit.txt @@ -0,0 +1,24 @@ +J-Core Programmable Interval Timer and Clocksource + +Required properties: + +- compatible: Must be "jcore,pit". + +- reg: Memory region(s) for timer/clocksource registers. For SMP, + there should be one region per cpu, indexed by the sequential, + zero-based hardware cpu number. + +- interrupts: An interrupt to assign for the timer. The actual pit + core is integrated with the aic and allows the timer interrupt + assignment to be programmed by software, but this property is + required in order to reserve an interrupt number that doesn't + conflict with other devices. + + +Example: + +timer@200 { + compatible = "jcore,pit"; + reg = < 0x200 0x30 0x500 0x30 >; + interrupts = < 0x48 >; +}; diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index 455f2c310a1b..2c30a5479069 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -28,10 +28,7 @@ Refer to phy/phy-bindings.txt for generic phy consumer properties - g-use-dma: enable dma usage in gadget driver. - g-rx-fifo-size: size of rx fifo size in gadget mode. - g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode. - -Deprecated properties: -- g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) - in gadget mode. +- g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) in gadget mode. Example: diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 24c6f658bce1..f0a48ea78659 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -163,9 +163,11 @@ maxim Maxim Integrated Products meas Measurement Specialties mediatek MediaTek Inc. melexis Melexis N.V. +melfas MELFAS Inc. merrii Merrii Technology Co., Ltd. micrel Micrel Inc. microchip Microchip Technology Inc. +microcrystal Micro Crystal AG micron Micron Technology Inc. minix MINIX Technology Ltd. mitsubishi Mitsubishi Electric Corporation diff --git a/Documentation/features/perf/kprobes-event/arch-support.txt b/Documentation/features/perf/kprobes-event/arch-support.txt index 9855ad044386..4660bf222db1 100644 --- a/Documentation/features/perf/kprobes-event/arch-support.txt +++ b/Documentation/features/perf/kprobes-event/arch-support.txt @@ -22,7 +22,7 @@ | m68k: | TODO | | metag: | TODO | | microblaze: | TODO | - | mips: | TODO | + | mips: | ok | | mn10300: | TODO | | nios2: | TODO | | openrisc: | TODO | diff --git a/Documentation/filesystems/.gitignore b/Documentation/filesystems/.gitignore deleted file mode 100644 index 31d6e426b6d4..000000000000 --- a/Documentation/filesystems/.gitignore +++ /dev/null @@ -1 +0,0 @@ -dnotify_test diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX index 9922939e7d99..f66e748fc5e4 100644 --- a/Documentation/filesystems/00-INDEX +++ b/Documentation/filesystems/00-INDEX @@ -2,8 +2,6 @@ - this file (info on some of the filesystems supported by linux). Locking - info on locking rules as they pertain to Linux VFS. -Makefile - - Makefile for building the filsystems-part of DocBook. 9p.txt - 9p (v9fs) is an implementation of the Plan 9 remote fs protocol. adfs.txt diff --git a/Documentation/filesystems/Makefile b/Documentation/filesystems/Makefile deleted file mode 100644 index 883010ce5e35..000000000000 --- a/Documentation/filesystems/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# List of programs to build -hostprogs-y := dnotify_test - -# Tell kbuild to always build the programs -always := $(hostprogs-y) diff --git a/Documentation/filesystems/dnotify_test.c b/Documentation/filesystems/dnotify_test.c deleted file mode 100644 index 8b37b4a1e18d..000000000000 --- a/Documentation/filesystems/dnotify_test.c +++ /dev/null @@ -1,34 +0,0 @@ -#define _GNU_SOURCE /* needed to get the defines */ -#include <fcntl.h> /* in glibc 2.2 this has the needed - values defined */ -#include <signal.h> -#include <stdio.h> -#include <unistd.h> - -static volatile int event_fd; - -static void handler(int sig, siginfo_t *si, void *data) -{ - event_fd = si->si_fd; -} - -int main(void) -{ - struct sigaction act; - int fd; - - act.sa_sigaction = handler; - sigemptyset(&act.sa_mask); - act.sa_flags = SA_SIGINFO; - sigaction(SIGRTMIN + 1, &act, NULL); - - fd = open(".", O_RDONLY); - fcntl(fd, F_SETSIG, SIGRTMIN + 1); - fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT); - /* we will now be notified if any of the files - in "." is modified or new files are created */ - while (1) { - pause(); - printf("Got event on fd=%d\n", event_fd); - } -} diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 219ffd41a911..74329fd0add2 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -395,32 +395,6 @@ is not associated with a file: or if empty, the mapping is anonymous. -The /proc/PID/task/TID/maps is a view of the virtual memory from the viewpoint -of the individual tasks of a process. In this file you will see a mapping marked -as [stack] if that task sees it as a stack. Hence, for the example above, the -task-level map, i.e. /proc/PID/task/TID/maps for thread 1001 will look like this: - -08048000-08049000 r-xp 00000000 03:00 8312 /opt/test -08049000-0804a000 rw-p 00001000 03:00 8312 /opt/test -0804a000-0806b000 rw-p 00000000 00:00 0 [heap] -a7cb1000-a7cb2000 ---p 00000000 00:00 0 -a7cb2000-a7eb2000 rw-p 00000000 00:00 0 -a7eb2000-a7eb3000 ---p 00000000 00:00 0 -a7eb3000-a7ed5000 rw-p 00000000 00:00 0 [stack] -a7ed5000-a8008000 r-xp 00000000 03:00 4222 /lib/libc.so.6 -a8008000-a800a000 r--p 00133000 03:00 4222 /lib/libc.so.6 -a800a000-a800b000 rw-p 00135000 03:00 4222 /lib/libc.so.6 -a800b000-a800e000 rw-p 00000000 00:00 0 -a800e000-a8022000 r-xp 00000000 03:00 14462 /lib/libpthread.so.0 -a8022000-a8023000 r--p 00013000 03:00 14462 /lib/libpthread.so.0 -a8023000-a8024000 rw-p 00014000 03:00 14462 /lib/libpthread.so.0 -a8024000-a8027000 rw-p 00000000 00:00 0 -a8027000-a8043000 r-xp 00000000 03:00 8317 /lib/ld-linux.so.2 -a8043000-a8044000 r--p 0001b000 03:00 8317 /lib/ld-linux.so.2 -a8044000-a8045000 rw-p 0001c000 03:00 8317 /lib/ld-linux.so.2 -aff35000-aff4a000 rw-p 00000000 00:00 0 -ffffe000-fffff000 r-xp 00000000 00:00 0 [vdso] - The /proc/PID/smaps is an extension based on maps, showing the memory consumption for each of the process's mappings. For each of mappings there is a series of lines such as the following: diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt index 40884c4fe40c..a0f61898d493 100644 --- a/Documentation/gpio/board.txt +++ b/Documentation/gpio/board.txt @@ -6,7 +6,7 @@ Note that it only applies to the new descriptor-based interface. For a description of the deprecated integer-based GPIO interface please refer to gpio-legacy.txt (actually, there is no real mapping possible with the old interface; you just fetch an integer from somewhere and request the -corresponding GPIO. +corresponding GPIO). All platforms can enable the GPIO library, but if the platform strictly requires GPIO functionality to be present, it needs to select GPIOLIB from its @@ -162,6 +162,9 @@ The driver controlling "foo.0" will then be able to obtain its GPIOs as follows: Since the "led" GPIOs are mapped as active-high, this example will switch their signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped -as active-low, its actual signal will be 0 after this code. Contrary to the legacy -integer GPIO interface, the active-low property is handled during mapping and is -thus transparent to GPIO consumers. +as active-low, its actual signal will be 0 after this code. Contrary to the +legacy integer GPIO interface, the active-low property is handled during +mapping and is thus transparent to GPIO consumers. + +A set of functions such as gpiod_set_value() is available to work with +the new descriptor-oriented interface. diff --git a/Documentation/ia64/.gitignore b/Documentation/ia64/.gitignore deleted file mode 100644 index ab806edc8732..000000000000 --- a/Documentation/ia64/.gitignore +++ /dev/null @@ -1 +0,0 @@ -aliasing-test diff --git a/Documentation/ia64/Makefile b/Documentation/ia64/Makefile deleted file mode 100644 index d493163affe7..000000000000 --- a/Documentation/ia64/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# List of programs to build -hostprogs-y := aliasing-test - -# Tell kbuild to always build the programs -always := $(hostprogs-y) diff --git a/Documentation/ia64/aliasing-test.c b/Documentation/ia64/aliasing-test.c deleted file mode 100644 index 62a190d45f38..000000000000 --- a/Documentation/ia64/aliasing-test.c +++ /dev/null @@ -1,263 +0,0 @@ -/* - * Exercise /dev/mem mmap cases that have been troublesome in the past - * - * (c) Copyright 2007 Hewlett-Packard Development Company, L.P. - * Bjorn Helgaas <bjorn.helgaas@hp.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <stdlib.h> -#include <stdio.h> -#include <sys/types.h> -#include <dirent.h> -#include <fcntl.h> -#include <fnmatch.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <unistd.h> -#include <linux/pci.h> - -int sum; - -static int map_mem(char *path, off_t offset, size_t length, int touch) -{ - int fd, rc; - void *addr; - int *c; - - fd = open(path, O_RDWR); - if (fd == -1) { - perror(path); - return -1; - } - - if (fnmatch("/proc/bus/pci/*", path, 0) == 0) { - rc = ioctl(fd, PCIIOC_MMAP_IS_MEM); - if (rc == -1) - perror("PCIIOC_MMAP_IS_MEM ioctl"); - } - - addr = mmap(NULL, length, PROT_READ|PROT_WRITE, MAP_SHARED, fd, offset); - if (addr == MAP_FAILED) - return 1; - - if (touch) { - c = (int *) addr; - while (c < (int *) (addr + length)) - sum += *c++; - } - - rc = munmap(addr, length); - if (rc == -1) { - perror("munmap"); - return -1; - } - - close(fd); - return 0; -} - -static int scan_tree(char *path, char *file, off_t offset, size_t length, int touch) -{ - struct dirent **namelist; - char *name, *path2; - int i, n, r, rc = 0, result = 0; - struct stat buf; - - n = scandir(path, &namelist, 0, alphasort); - if (n < 0) { - perror("scandir"); - return -1; - } - - for (i = 0; i < n; i++) { - name = namelist[i]->d_name; - - if (fnmatch(".", name, 0) == 0) - goto skip; - if (fnmatch("..", name, 0) == 0) - goto skip; - - path2 = malloc(strlen(path) + strlen(name) + 3); - strcpy(path2, path); - strcat(path2, "/"); - strcat(path2, name); - - if (fnmatch(file, name, 0) == 0) { - rc = map_mem(path2, offset, length, touch); - if (rc == 0) - fprintf(stderr, "PASS: %s 0x%lx-0x%lx is %s\n", path2, offset, offset + length, touch ? "readable" : "mappable"); - else if (rc > 0) - fprintf(stderr, "PASS: %s 0x%lx-0x%lx not mappable\n", path2, offset, offset + length); - else { - fprintf(stderr, "FAIL: %s 0x%lx-0x%lx not accessible\n", path2, offset, offset + length); - return rc; - } - } else { - r = lstat(path2, &buf); - if (r == 0 && S_ISDIR(buf.st_mode)) { - rc = scan_tree(path2, file, offset, length, touch); - if (rc < 0) - return rc; - } - } - - result |= rc; - free(path2); - -skip: - free(namelist[i]); - } - free(namelist); - return result; -} - -char buf[1024]; - -static int read_rom(char *path) -{ - int fd, rc; - size_t size = 0; - - fd = open(path, O_RDWR); - if (fd == -1) { - perror(path); - return -1; - } - - rc = write(fd, "1", 2); - if (rc <= 0) { - close(fd); - perror("write"); - return -1; - } - - do { - rc = read(fd, buf, sizeof(buf)); - if (rc > 0) - size += rc; - } while (rc > 0); - - close(fd); - return size; -} - -static int scan_rom(char *path, char *file) -{ - struct dirent **namelist; - char *name, *path2; - int i, n, r, rc = 0, result = 0; - struct stat buf; - - n = scandir(path, &namelist, 0, alphasort); - if (n < 0) { - perror("scandir"); - return -1; - } - - for (i = 0; i < n; i++) { - name = namelist[i]->d_name; - - if (fnmatch(".", name, 0) == 0) - goto skip; - if (fnmatch("..", name, 0) == 0) - goto skip; - - path2 = malloc(strlen(path) + strlen(name) + 3); - strcpy(path2, path); - strcat(path2, "/"); - strcat(path2, name); - - if (fnmatch(file, name, 0) == 0) { - rc = read_rom(path2); - - /* - * It's OK if the ROM is unreadable. Maybe there - * is no ROM, or some other error occurred. The - * important thing is that no MCA happened. - */ - if (rc > 0) - fprintf(stderr, "PASS: %s read %d bytes\n", path2, rc); - else { - fprintf(stderr, "PASS: %s not readable\n", path2); - return rc; - } - } else { - r = lstat(path2, &buf); - if (r == 0 && S_ISDIR(buf.st_mode)) { - rc = scan_rom(path2, file); - if (rc < 0) - return rc; - } - } - - result |= rc; - free(path2); - -skip: - free(namelist[i]); - } - free(namelist); - return result; -} - -int main(void) -{ - int rc; - - if (map_mem("/dev/mem", 0, 0xA0000, 1) == 0) - fprintf(stderr, "PASS: /dev/mem 0x0-0xa0000 is readable\n"); - else - fprintf(stderr, "FAIL: /dev/mem 0x0-0xa0000 not accessible\n"); - - /* - * It's not safe to blindly read the VGA frame buffer. If you know - * how to poke the card the right way, it should respond, but it's - * not safe in general. Many machines, e.g., Intel chipsets, cover - * up a non-responding card by just returning -1, but others will - * report the failure as a machine check. - */ - if (map_mem("/dev/mem", 0xA0000, 0x20000, 0) == 0) - fprintf(stderr, "PASS: /dev/mem 0xa0000-0xc0000 is mappable\n"); - else - fprintf(stderr, "FAIL: /dev/mem 0xa0000-0xc0000 not accessible\n"); - - if (map_mem("/dev/mem", 0xC0000, 0x40000, 1) == 0) - fprintf(stderr, "PASS: /dev/mem 0xc0000-0x100000 is readable\n"); - else - fprintf(stderr, "FAIL: /dev/mem 0xc0000-0x100000 not accessible\n"); - - /* - * Often you can map all the individual pieces above (0-0xA0000, - * 0xA0000-0xC0000, and 0xC0000-0x100000), but can't map the whole - * thing at once. This is because the individual pieces use different - * attributes, and there's no single attribute supported over the - * whole region. - */ - rc = map_mem("/dev/mem", 0, 1024*1024, 0); - if (rc == 0) - fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 is mappable\n"); - else if (rc > 0) - fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 not mappable\n"); - else - fprintf(stderr, "FAIL: /dev/mem 0x0-0x100000 not accessible\n"); - - scan_tree("/sys/class/pci_bus", "legacy_mem", 0, 0xA0000, 1); - scan_tree("/sys/class/pci_bus", "legacy_mem", 0xA0000, 0x20000, 0); - scan_tree("/sys/class/pci_bus", "legacy_mem", 0xC0000, 0x40000, 1); - scan_tree("/sys/class/pci_bus", "legacy_mem", 0, 1024*1024, 0); - - scan_rom("/sys/devices", "rom"); - - scan_tree("/proc/bus/pci", "??.?", 0, 0xA0000, 1); - scan_tree("/proc/bus/pci", "??.?", 0xA0000, 0x20000, 0); - scan_tree("/proc/bus/pci", "??.?", 0xC0000, 0x40000, 1); - scan_tree("/proc/bus/pci", "??.?", 0, 1024*1024, 0); - - return rc; -} diff --git a/Documentation/index.rst b/Documentation/index.rst index d9ccb94fca95..c53d089455a4 100644 --- a/Documentation/index.rst +++ b/Documentation/index.rst @@ -17,6 +17,7 @@ Contents: driver-api/index media/index gpu/index + 80211/index Indices and tables ================== diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt index 1fec1135791d..8d1341ccde64 100644 --- a/Documentation/input/alps.txt +++ b/Documentation/input/alps.txt @@ -319,3 +319,60 @@ For touchpad packet, the format is: otherwise byte 0 bit 4 must be set and byte 0/4/5 are in NEW fmt F: Number of fingers - 3, 0 means 3 fingers, 1 means 4 ... + + +ALPS Absolute Mode - Protocol Version 8 +--------------------------------------- + +Spoken by SS4 (73 03 14) and SS5 (73 03 28) hardware. + +The packet type is given by the APD field, bits 4-5 of byte 3. + +Touchpad packet (APD = 0x2): + + b7 b6 b5 b4 b3 b2 b1 b0 + byte 0: SWM SWR SWL 1 1 0 0 X7 + byte 1: 0 X6 X5 X4 X3 X2 X1 X0 + byte 2: 0 Y6 Y5 Y4 Y3 Y2 Y1 Y0 + byte 3: 0 T&P 1 0 1 0 0 Y7 + byte 4: 0 Z6 Z5 Z4 Z3 Z2 Z1 Z0 + byte 5: 0 0 0 0 0 0 0 0 + +SWM, SWR, SWL: Middle, Right, and Left button states + +Touchpad 1 Finger packet (APD = 0x0): + + b7 b6 b5 b4 b3 b2 b1 b0 + byte 0: SWM SWR SWL 1 1 X2 X1 X0 + byte 1: X9 X8 X7 1 X6 X5 X4 X3 + byte 2: 0 X11 X10 LFB Y3 Y2 Y1 Y0 + byte 3: Y5 Y4 0 0 1 TAPF2 TAPF1 TAPF0 + byte 4: Zv7 Y11 Y10 1 Y9 Y8 Y7 Y6 + byte 5: Zv6 Zv5 Zv4 0 Zv3 Zv2 Zv1 Zv0 + +TAPF: ??? +LFB: ??? + +Touchpad 2 Finger packet (APD = 0x1): + + b7 b6 b5 b4 b3 b2 b1 b0 + byte 0: SWM SWR SWL 1 1 AX6 AX5 AX4 + byte 1: AX11 AX10 AX9 AX8 AX7 AZ1 AY4 AZ0 + byte 2: AY11 AY10 AY9 CONT AY8 AY7 AY6 AY5 + byte 3: 0 0 0 1 1 BX6 BX5 BX4 + byte 4: BX11 BX10 BX9 BX8 BX7 BZ1 BY4 BZ0 + byte 5: BY11 BY10 BY9 0 BY8 BY7 BY5 BY5 + +CONT: A 3-or-4 Finger packet is to follow + +Touchpad 3-or-4 Finger packet (APD = 0x3): + + b7 b6 b5 b4 b3 b2 b1 b0 + byte 0: SWM SWR SWL 1 1 AX6 AX5 AX4 + byte 1: AX11 AX10 AX9 AX8 AX7 AZ1 AY4 AZ0 + byte 2: AY11 AY10 AY9 OVF AY8 AY7 AY6 AY5 + byte 3: 0 0 1 1 1 BX6 BX5 BX4 + byte 4: BX11 BX10 BX9 BX8 BX7 BZ1 BY4 BZ0 + byte 5: BY11 BY10 BY9 0 BY8 BY7 BY5 BY5 + +OVF: 5th finger detected diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 385a5ef41c17..9b9c4797fc55 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -41,6 +41,7 @@ This document describes the Linux kernel Makefiles. --- 6.8 Custom kbuild commands --- 6.9 Preprocessing linker scripts --- 6.10 Generic header files + --- 6.11 Post-link pass === 7 Kbuild syntax for exported headers --- 7.1 header-y @@ -1237,6 +1238,21 @@ When kbuild executes, the following steps are followed (roughly): to list the file in the Kbuild file. See "7.4 generic-y" for further info on syntax etc. +--- 6.11 Post-link pass + + If the file arch/xxx/Makefile.postlink exists, this makefile + will be invoked for post-link objects (vmlinux and modules.ko) + for architectures to run post-link passes on. Must also handle + the clean target. + + This pass runs after kallsyms generation. If the architecture + needs to modify symbol locations, rather than manipulate the + kallsyms, it may be easier to add another postlink target for + .tmp_vmlinux? targets to be called from link-vmlinux.sh. + + For example, powerpc uses this to check relocation sanity of + the linked vmlinux file. + === 7 Kbuild syntax for exported headers The kernel includes a set of headers that is exported to userspace. diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 58f3c1041759..37babf91f2cb 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1511,7 +1511,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. i8042.nopnp [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX controllers i8042.notimeout [HW] Ignore timeout condition signalled by controller - i8042.reset [HW] Reset the controller during init and cleanup + i8042.reset [HW] Reset the controller during init, cleanup and + suspend-to-ram transitions, only during s2r + transitions, or never reset + Format: { 1 | Y | y | 0 | N | n } + 1, Y, y: always reset controller + 0, N, n: don't ever reset controller + Default: only on s2r transitions on x86; most other + architectures force reset to be always executed i8042.unlock [HW] Unlock (ignore) the keylock i8042.kbdreset [HW] Reset device connected to KBD port diff --git a/Documentation/kselftest.txt b/Documentation/kselftest.txt index 979eacae243d..54bee77fa728 100644 --- a/Documentation/kselftest.txt +++ b/Documentation/kselftest.txt @@ -1,8 +1,9 @@ Linux Kernel Selftests The kernel contains a set of "self tests" under the tools/testing/selftests/ -directory. These are intended to be small unit tests to exercise individual -code paths in the kernel. +directory. These are intended to be small tests to exercise individual code +paths in the kernel. Tests are intended to be run after building, installing +and booting a kernel. On some systems, hot-plug tests could hang forever waiting for cpu and memory to be ready to be offlined. A special hot-plug target is created diff --git a/Documentation/laptops/.gitignore b/Documentation/laptops/.gitignore deleted file mode 100644 index 9fc984e64386..000000000000 --- a/Documentation/laptops/.gitignore +++ /dev/null @@ -1 +0,0 @@ -dslm diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX index 7c0ac2a26b9e..86169dc766f7 100644 --- a/Documentation/laptops/00-INDEX +++ b/Documentation/laptops/00-INDEX @@ -1,13 +1,9 @@ 00-INDEX - This file -Makefile - - Makefile for building dslm example program. asus-laptop.txt - information on the Asus Laptop Extras driver. disk-shock-protection.txt - information on hard disk shock protection. -dslm.c - - Simple Disk Sleep Monitor program laptop-mode.txt - how to conserve battery power using laptop-mode. sony-laptop.txt diff --git a/Documentation/laptops/Makefile b/Documentation/laptops/Makefile deleted file mode 100644 index 0abe44f68965..000000000000 --- a/Documentation/laptops/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# List of programs to build -hostprogs-y := dslm - -# Tell kbuild to always build the programs -always := $(hostprogs-y) diff --git a/Documentation/laptops/dslm.c b/Documentation/laptops/dslm.c deleted file mode 100644 index d5dd2d4b04d8..000000000000 --- a/Documentation/laptops/dslm.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * dslm.c - * Simple Disk Sleep Monitor - * by Bartek Kania - * Licensed under the GPL - */ -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> -#include <fcntl.h> -#include <errno.h> -#include <time.h> -#include <string.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <linux/hdreg.h> - -#ifdef DEBUG -#define D(x) x -#else -#define D(x) -#endif - -int endit = 0; - -/* Check if the disk is in powersave-mode - * Most of the code is stolen from hdparm. - * 1 = active, 0 = standby/sleep, -1 = unknown */ -static int check_powermode(int fd) -{ - unsigned char args[4] = {WIN_CHECKPOWERMODE1,0,0,0}; - int state; - - if (ioctl(fd, HDIO_DRIVE_CMD, &args) - && (args[0] = WIN_CHECKPOWERMODE2) /* try again with 0x98 */ - && ioctl(fd, HDIO_DRIVE_CMD, &args)) { - if (errno != EIO || args[0] != 0 || args[1] != 0) { - state = -1; /* "unknown"; */ - } else - state = 0; /* "sleeping"; */ - } else { - state = (args[2] == 255) ? 1 : 0; - } - D(printf(" drive state is: %d\n", state)); - - return state; -} - -static char *state_name(int i) -{ - if (i == -1) return "unknown"; - if (i == 0) return "sleeping"; - if (i == 1) return "active"; - - return "internal error"; -} - -static char *myctime(time_t time) -{ - char *ts = ctime(&time); - ts[strlen(ts) - 1] = 0; - - return ts; -} - -static void measure(int fd) -{ - time_t start_time; - int last_state; - time_t last_time; - int curr_state; - time_t curr_time = 0; - time_t time_diff; - time_t active_time = 0; - time_t sleep_time = 0; - time_t unknown_time = 0; - time_t total_time = 0; - int changes = 0; - float tmp; - - printf("Starting measurements\n"); - - last_state = check_powermode(fd); - start_time = last_time = time(0); - printf(" System is in state %s\n\n", state_name(last_state)); - - while(!endit) { - sleep(1); - curr_state = check_powermode(fd); - - if (curr_state != last_state || endit) { - changes++; - curr_time = time(0); - time_diff = curr_time - last_time; - - if (last_state == 1) active_time += time_diff; - else if (last_state == 0) sleep_time += time_diff; - else unknown_time += time_diff; - - last_state = curr_state; - last_time = curr_time; - - printf("%s: State-change to %s\n", myctime(curr_time), - state_name(curr_state)); - } - } - changes--; /* Compensate for SIGINT */ - - total_time = time(0) - start_time; - printf("\nTotal running time: %lus\n", curr_time - start_time); - printf(" State changed %d times\n", changes); - - tmp = (float)sleep_time / (float)total_time * 100; - printf(" Time in sleep state: %lus (%.2f%%)\n", sleep_time, tmp); - tmp = (float)active_time / (float)total_time * 100; - printf(" Time in active state: %lus (%.2f%%)\n", active_time, tmp); - tmp = (float)unknown_time / (float)total_time * 100; - printf(" Time in unknown state: %lus (%.2f%%)\n", unknown_time, tmp); -} - -static void ender(int s) -{ - endit = 1; -} - -static void usage(void) -{ - puts("usage: dslm [-w <time>] <disk>"); - exit(0); -} - -int main(int argc, char **argv) -{ - int fd; - char *disk = 0; - int settle_time = 60; - - /* Parse the simple command-line */ - if (argc == 2) - disk = argv[1]; - else if (argc == 4) { - settle_time = atoi(argv[2]); - disk = argv[3]; - } else - usage(); - - if (!(fd = open(disk, O_RDONLY|O_NONBLOCK))) { - printf("Can't open %s, because: %s\n", disk, strerror(errno)); - exit(-1); - } - - if (settle_time) { - printf("Waiting %d seconds for the system to settle down to " - "'normal'\n", settle_time); - sleep(settle_time); - } else - puts("Not waiting for system to settle down"); - - signal(SIGINT, ender); - - measure(fd); - - close(fd); - - return 0; -} diff --git a/Documentation/laptops/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt index 4ebbfc3f1c6e..19276f5d195c 100644 --- a/Documentation/laptops/laptop-mode.txt +++ b/Documentation/laptops/laptop-mode.txt @@ -779,4 +779,4 @@ Monitoring tool --------------- Bartek Kania submitted this, it can be used to measure how much time your disk -spends spun up/down. See Documentation/laptops/dslm.c +spends spun up/down. See tools/laptop/dslm/dslm.c diff --git a/Documentation/mic/Makefile b/Documentation/mic/Makefile deleted file mode 100644 index a191d453badf..000000000000 --- a/Documentation/mic/Makefile +++ /dev/null @@ -1 +0,0 @@ -subdir-y := mpssd diff --git a/Documentation/mic/mpssd/.gitignore b/Documentation/mic/mpssd/.gitignore deleted file mode 100644 index 8b7c72f07c92..000000000000 --- a/Documentation/mic/mpssd/.gitignore +++ /dev/null @@ -1 +0,0 @@ -mpssd diff --git a/Documentation/mic/mpssd/Makefile b/Documentation/mic/mpssd/Makefile deleted file mode 100644 index 06871b0c08a6..000000000000 --- a/Documentation/mic/mpssd/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -ifndef CROSS_COMPILE -# List of programs to build -hostprogs-$(CONFIG_X86_64) := mpssd - -mpssd-objs := mpssd.o sysfs.o - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS += -I$(objtree)/usr/include -I$(srctree)/tools/include - -ifdef DEBUG -HOSTCFLAGS += -DDEBUG=$(DEBUG) -endif - -HOSTLOADLIBES_mpssd := -lpthread - -install: - install mpssd /usr/sbin/mpssd - install micctrl /usr/sbin/micctrl -endif diff --git a/Documentation/mic/mpssd/micctrl b/Documentation/mic/mpssd/micctrl deleted file mode 100755 index 8f2629b41c5f..000000000000 --- a/Documentation/mic/mpssd/micctrl +++ /dev/null @@ -1,173 +0,0 @@ -#!/bin/bash -# Intel MIC Platform Software Stack (MPSS) -# -# Copyright(c) 2013 Intel Corporation. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License, version 2, 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 for more details. -# -# The full GNU General Public License is included in this distribution in -# the file called "COPYING". -# -# Intel MIC User Space Tools. -# -# micctrl - Controls MIC boot/start/stop. -# -# chkconfig: 2345 95 05 -# description: start MPSS stack processing. -# -### BEGIN INIT INFO -# Provides: micctrl -### END INIT INFO - -# Source function library. -. /etc/init.d/functions - -sysfs="/sys/class/mic" - -_status() -{ - f=$sysfs/$1 - echo -e $1 state: "`cat $f/state`" shutdown_status: "`cat $f/shutdown_status`" -} - -status() -{ - if [ "`echo $1 | head -c3`" == "mic" ]; then - _status $1 - return $? - fi - for f in $sysfs/* - do - _status `basename $f` - RETVAL=$? - [ $RETVAL -ne 0 ] && return $RETVAL - done - return 0 -} - -_reset() -{ - f=$sysfs/$1 - echo reset > $f/state -} - -reset() -{ - if [ "`echo $1 | head -c3`" == "mic" ]; then - _reset $1 - return $? - fi - for f in $sysfs/* - do - _reset `basename $f` - RETVAL=$? - [ $RETVAL -ne 0 ] && return $RETVAL - done - return 0 -} - -_boot() -{ - f=$sysfs/$1 - echo "linux" > $f/bootmode - echo "mic/uos.img" > $f/firmware - echo "mic/$1.image" > $f/ramdisk - echo "boot" > $f/state -} - -boot() -{ - if [ "`echo $1 | head -c3`" == "mic" ]; then - _boot $1 - return $? - fi - for f in $sysfs/* - do - _boot `basename $f` - RETVAL=$? - [ $RETVAL -ne 0 ] && return $RETVAL - done - return 0 -} - -_shutdown() -{ - f=$sysfs/$1 - echo shutdown > $f/state -} - -shutdown() -{ - if [ "`echo $1 | head -c3`" == "mic" ]; then - _shutdown $1 - return $? - fi - for f in $sysfs/* - do - _shutdown `basename $f` - RETVAL=$? - [ $RETVAL -ne 0 ] && return $RETVAL - done - return 0 -} - -_wait() -{ - f=$sysfs/$1 - while [ "`cat $f/state`" != "offline" -a "`cat $f/state`" != "online" ] - do - sleep 1 - echo -e "Waiting for $1 to go offline" - done -} - -wait() -{ - if [ "`echo $1 | head -c3`" == "mic" ]; then - _wait $1 - return $? - fi - # Wait for the cards to go offline - for f in $sysfs/* - do - _wait `basename $f` - RETVAL=$? - [ $RETVAL -ne 0 ] && return $RETVAL - done - return 0 -} - -if [ ! -d "$sysfs" ]; then - echo -e $"Module unloaded " - exit 3 -fi - -case $1 in - -s) - status $2 - ;; - -r) - reset $2 - ;; - -b) - boot $2 - ;; - -S) - shutdown $2 - ;; - -w) - wait $2 - ;; - *) - echo $"Usage: $0 {-s (status) |-r (reset) |-b (boot) |-S (shutdown) |-w (wait)}" - exit 2 -esac - -exit $? diff --git a/Documentation/mic/mpssd/mpss b/Documentation/mic/mpssd/mpss deleted file mode 100755 index 5fcf9fa4b082..000000000000 --- a/Documentation/mic/mpssd/mpss +++ /dev/null @@ -1,200 +0,0 @@ -#!/bin/bash -# Intel MIC Platform Software Stack (MPSS) -# -# Copyright(c) 2013 Intel Corporation. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License, version 2, 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 for more details. -# -# The full GNU General Public License is included in this distribution in -# the file called "COPYING". -# -# Intel MIC User Space Tools. -# -# mpss Start mpssd. -# -# chkconfig: 2345 95 05 -# description: start MPSS stack processing. -# -### BEGIN INIT INFO -# Provides: mpss -# Required-Start: -# Required-Stop: -# Short-Description: MPSS stack control -# Description: MPSS stack control -### END INIT INFO - -# Source function library. -. /etc/init.d/functions - -exec=/usr/sbin/mpssd -sysfs="/sys/class/mic" -mic_modules="mic_host mic_x100_dma scif vop" - -start() -{ - [ -x $exec ] || exit 5 - - if [ "`ps -e | awk '{print $4}' | grep mpssd | head -1`" = "mpssd" ]; then - echo -e $"MPSSD already running! " - success - echo - return 0 - fi - - echo -e $"Starting MPSS Stack" - echo -e $"Loading MIC drivers:" $mic_modules - - modprobe -a $mic_modules - RETVAL=$? - if [ $RETVAL -ne 0 ]; then - failure - echo - return $RETVAL - fi - - # Start the daemon - echo -n $"Starting MPSSD " - $exec - RETVAL=$? - if [ $RETVAL -ne 0 ]; then - failure - echo - return $RETVAL - fi - success - echo - - sleep 5 - - # Boot the cards - micctrl -b - - # Wait till ping works - for f in $sysfs/* - do - count=100 - ipaddr=`cat $f/cmdline` - ipaddr=${ipaddr#*address,} - ipaddr=`echo $ipaddr | cut -d, -f1 | cut -d\; -f1` - while [ $count -ge 0 ] - do - echo -e "Pinging "`basename $f`" " - ping -c 1 $ipaddr &> /dev/null - RETVAL=$? - if [ $RETVAL -eq 0 ]; then - success - break - fi - sleep 1 - count=`expr $count - 1` - done - [ $RETVAL -ne 0 ] && failure || success - echo - done - return $RETVAL -} - -stop() -{ - echo -e $"Shutting down MPSS Stack: " - - # Bail out if module is unloaded - if [ ! -d "$sysfs" ]; then - echo -n $"Module unloaded " - success - echo - return 0 - fi - - # Shut down the cards. - micctrl -S - - # Wait for the cards to go offline - for f in $sysfs/* - do - while [ "`cat $f/state`" != "ready" ] - do - sleep 1 - echo -e "Waiting for "`basename $f`" to become ready" - done - done - - # Display the status of the cards - micctrl -s - - # Kill MPSSD now - echo -n $"Killing MPSSD" - killall -9 mpssd 2>/dev/null - RETVAL=$? - [ $RETVAL -ne 0 ] && failure || success - echo - return $RETVAL -} - -restart() -{ - stop - sleep 5 - start -} - -status() -{ - micctrl -s - if [ "`ps -e | awk '{print $4}' | grep mpssd | head -n 1`" = "mpssd" ]; then - echo "mpssd is running" - else - echo "mpssd is stopped" - fi - return 0 -} - -unload() -{ - if [ ! -d "$sysfs" ]; then - echo -n $"No MIC_HOST Module: " - success - echo - return - fi - - stop - - sleep 5 - echo -n $"Removing MIC drivers:" $mic_modules - modprobe -r $mic_modules - RETVAL=$? - [ $RETVAL -ne 0 ] && failure || success - echo - return $RETVAL -} - -case $1 in - start) - start - ;; - stop) - stop - ;; - restart) - restart - ;; - status) - status - ;; - unload) - unload - ;; - *) - echo $"Usage: $0 {start|stop|restart|status|unload}" - exit 2 -esac - -exit $? diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c deleted file mode 100644 index 49db1def1721..000000000000 --- a/Documentation/mic/mpssd/mpssd.c +++ /dev/null @@ -1,1826 +0,0 @@ -/* - * Intel MIC Platform Software Stack (MPSS) - * - * Copyright(c) 2013 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, 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 for more details. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Intel MIC User Space Tools. - */ - -#define _GNU_SOURCE - -#include <stdlib.h> -#include <fcntl.h> -#include <getopt.h> -#include <assert.h> -#include <unistd.h> -#include <stdbool.h> -#include <signal.h> -#include <poll.h> -#include <features.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <sys/socket.h> -#include <linux/virtio_ring.h> -#include <linux/virtio_net.h> -#include <linux/virtio_console.h> -#include <linux/virtio_blk.h> -#include <linux/version.h> -#include "mpssd.h" -#include <linux/mic_ioctl.h> -#include <linux/mic_common.h> -#include <tools/endian.h> - -static void *init_mic(void *arg); - -static FILE *logfp; -static struct mic_info mic_list; - -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - -#define min_t(type, x, y) ({ \ - type __min1 = (x); \ - type __min2 = (y); \ - __min1 < __min2 ? __min1 : __min2; }) - -/* align addr on a size boundary - adjust address up/down if needed */ -#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1))) -#define _ALIGN_UP(addr, size) _ALIGN_DOWN(addr + size - 1, size) - -/* align addr on a size boundary - adjust address up if needed */ -#define _ALIGN(addr, size) _ALIGN_UP(addr, size) - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) - -#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) - -#define GSO_ENABLED 1 -#define MAX_GSO_SIZE (64 * 1024) -#define ETH_H_LEN 14 -#define MAX_NET_PKT_SIZE (_ALIGN_UP(MAX_GSO_SIZE + ETH_H_LEN, 64)) -#define MIC_DEVICE_PAGE_END 0x1000 - -#ifndef VIRTIO_NET_HDR_F_DATA_VALID -#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ -#endif - -static struct { - struct mic_device_desc dd; - struct mic_vqconfig vqconfig[2]; - __u32 host_features, guest_acknowledgements; - struct virtio_console_config cons_config; -} virtcons_dev_page = { - .dd = { - .type = VIRTIO_ID_CONSOLE, - .num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig), - .feature_len = sizeof(virtcons_dev_page.host_features), - .config_len = sizeof(virtcons_dev_page.cons_config), - }, - .vqconfig[0] = { - .num = htole16(MIC_VRING_ENTRIES), - }, - .vqconfig[1] = { - .num = htole16(MIC_VRING_ENTRIES), - }, -}; - -static struct { - struct mic_device_desc dd; - struct mic_vqconfig vqconfig[2]; - __u32 host_features, guest_acknowledgements; - struct virtio_net_config net_config; -} virtnet_dev_page = { - .dd = { - .type = VIRTIO_ID_NET, - .num_vq = ARRAY_SIZE(virtnet_dev_page.vqconfig), - .feature_len = sizeof(virtnet_dev_page.host_features), - .config_len = sizeof(virtnet_dev_page.net_config), - }, - .vqconfig[0] = { - .num = htole16(MIC_VRING_ENTRIES), - }, - .vqconfig[1] = { - .num = htole16(MIC_VRING_ENTRIES), - }, -#if GSO_ENABLED - .host_features = htole32( - 1 << VIRTIO_NET_F_CSUM | - 1 << VIRTIO_NET_F_GSO | - 1 << VIRTIO_NET_F_GUEST_TSO4 | - 1 << VIRTIO_NET_F_GUEST_TSO6 | - 1 << VIRTIO_NET_F_GUEST_ECN), -#else - .host_features = 0, -#endif -}; - -static const char *mic_config_dir = "/etc/mpss"; -static const char *virtblk_backend = "VIRTBLK_BACKEND"; -static struct { - struct mic_device_desc dd; - struct mic_vqconfig vqconfig[1]; - __u32 host_features, guest_acknowledgements; - struct virtio_blk_config blk_config; -} virtblk_dev_page = { - .dd = { - .type = VIRTIO_ID_BLOCK, - .num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig), - .feature_len = sizeof(virtblk_dev_page.host_features), - .config_len = sizeof(virtblk_dev_page.blk_config), - }, - .vqconfig[0] = { - .num = htole16(MIC_VRING_ENTRIES), - }, - .host_features = - htole32(1<<VIRTIO_BLK_F_SEG_MAX), - .blk_config = { - .seg_max = htole32(MIC_VRING_ENTRIES - 2), - .capacity = htole64(0), - } -}; - -static char *myname; - -static int -tap_configure(struct mic_info *mic, char *dev) -{ - pid_t pid; - char *ifargv[7]; - char ipaddr[IFNAMSIZ]; - int ret = 0; - - pid = fork(); - if (pid == 0) { - ifargv[0] = "ip"; - ifargv[1] = "link"; - ifargv[2] = "set"; - ifargv[3] = dev; - ifargv[4] = "up"; - ifargv[5] = NULL; - mpsslog("Configuring %s\n", dev); - ret = execvp("ip", ifargv); - if (ret < 0) { - mpsslog("%s execvp failed errno %s\n", - mic->name, strerror(errno)); - return ret; - } - } - if (pid < 0) { - mpsslog("%s fork failed errno %s\n", - mic->name, strerror(errno)); - return ret; - } - - ret = waitpid(pid, NULL, 0); - if (ret < 0) { - mpsslog("%s waitpid failed errno %s\n", - mic->name, strerror(errno)); - return ret; - } - - snprintf(ipaddr, IFNAMSIZ, "172.31.%d.254/24", mic->id + 1); - - pid = fork(); - if (pid == 0) { - ifargv[0] = "ip"; - ifargv[1] = "addr"; - ifargv[2] = "add"; - ifargv[3] = ipaddr; - ifargv[4] = "dev"; - ifargv[5] = dev; - ifargv[6] = NULL; - mpsslog("Configuring %s ipaddr %s\n", dev, ipaddr); - ret = execvp("ip", ifargv); - if (ret < 0) { - mpsslog("%s execvp failed errno %s\n", - mic->name, strerror(errno)); - return ret; - } - } - if (pid < 0) { - mpsslog("%s fork failed errno %s\n", - mic->name, strerror(errno)); - return ret; - } - - ret = waitpid(pid, NULL, 0); - if (ret < 0) { - mpsslog("%s waitpid failed errno %s\n", - mic->name, strerror(errno)); - return ret; - } - mpsslog("MIC name %s %s %d DONE!\n", - mic->name, __func__, __LINE__); - return 0; -} - -static int tun_alloc(struct mic_info *mic, char *dev) -{ - struct ifreq ifr; - int fd, err; -#if GSO_ENABLED - unsigned offload; -#endif - fd = open("/dev/net/tun", O_RDWR); - if (fd < 0) { - mpsslog("Could not open /dev/net/tun %s\n", strerror(errno)); - goto done; - } - - memset(&ifr, 0, sizeof(ifr)); - - ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_VNET_HDR; - if (*dev) - strncpy(ifr.ifr_name, dev, IFNAMSIZ); - - err = ioctl(fd, TUNSETIFF, (void *)&ifr); - if (err < 0) { - mpsslog("%s %s %d TUNSETIFF failed %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - close(fd); - return err; - } -#if GSO_ENABLED - offload = TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | TUN_F_TSO_ECN; - - err = ioctl(fd, TUNSETOFFLOAD, offload); - if (err < 0) { - mpsslog("%s %s %d TUNSETOFFLOAD failed %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - close(fd); - return err; - } -#endif - strcpy(dev, ifr.ifr_name); - mpsslog("Created TAP %s\n", dev); -done: - return fd; -} - -#define NET_FD_VIRTIO_NET 0 -#define NET_FD_TUN 1 -#define MAX_NET_FD 2 - -static void set_dp(struct mic_info *mic, int type, void *dp) -{ - switch (type) { - case VIRTIO_ID_CONSOLE: - mic->mic_console.console_dp = dp; - return; - case VIRTIO_ID_NET: - mic->mic_net.net_dp = dp; - return; - case VIRTIO_ID_BLOCK: - mic->mic_virtblk.block_dp = dp; - return; - } - mpsslog("%s %s %d not found\n", mic->name, __func__, type); - assert(0); -} - -static void *get_dp(struct mic_info *mic, int type) -{ - switch (type) { - case VIRTIO_ID_CONSOLE: - return mic->mic_console.console_dp; - case VIRTIO_ID_NET: - return mic->mic_net.net_dp; - case VIRTIO_ID_BLOCK: - return mic->mic_virtblk.block_dp; - } - mpsslog("%s %s %d not found\n", mic->name, __func__, type); - assert(0); - return NULL; -} - -static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type) -{ - struct mic_device_desc *d; - int i; - void *dp = get_dp(mic, type); - - for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE; - i += mic_total_desc_size(d)) { - d = dp + i; - - /* End of list */ - if (d->type == 0) - break; - - if (d->type == -1) - continue; - - mpsslog("%s %s d-> type %d d %p\n", - mic->name, __func__, d->type, d); - - if (d->type == (__u8)type) - return d; - } - mpsslog("%s %s %d not found\n", mic->name, __func__, type); - return NULL; -} - -/* See comments in vhost.c for explanation of next_desc() */ -static unsigned next_desc(struct vring_desc *desc) -{ - unsigned int next; - - if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT)) - return -1U; - next = le16toh(desc->next); - return next; -} - -/* Sum up all the IOVEC length */ -static ssize_t -sum_iovec_len(struct mic_copy_desc *copy) -{ - ssize_t sum = 0; - unsigned int i; - - for (i = 0; i < copy->iovcnt; i++) - sum += copy->iov[i].iov_len; - return sum; -} - -static inline void verify_out_len(struct mic_info *mic, - struct mic_copy_desc *copy) -{ - if (copy->out_len != sum_iovec_len(copy)) { - mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%zx\n", - mic->name, __func__, __LINE__, - copy->out_len, sum_iovec_len(copy)); - assert(copy->out_len == sum_iovec_len(copy)); - } -} - -/* Display an iovec */ -static void -disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy, - const char *s, int line) -{ - unsigned int i; - - for (i = 0; i < copy->iovcnt; i++) - mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%zx\n", - mic->name, s, line, i, - copy->iov[i].iov_base, copy->iov[i].iov_len); -} - -static inline __u16 read_avail_idx(struct mic_vring *vr) -{ - return ACCESS_ONCE(vr->info->avail_idx); -} - -static inline void txrx_prepare(int type, bool tx, struct mic_vring *vr, - struct mic_copy_desc *copy, ssize_t len) -{ - copy->vr_idx = tx ? 0 : 1; - copy->update_used = true; - if (type == VIRTIO_ID_NET) - copy->iov[1].iov_len = len - sizeof(struct virtio_net_hdr); - else - copy->iov[0].iov_len = len; -} - -/* Central API which triggers the copies */ -static int -mic_virtio_copy(struct mic_info *mic, int fd, - struct mic_vring *vr, struct mic_copy_desc *copy) -{ - int ret; - - ret = ioctl(fd, MIC_VIRTIO_COPY_DESC, copy); - if (ret) { - mpsslog("%s %s %d errno %s ret %d\n", - mic->name, __func__, __LINE__, - strerror(errno), ret); - } - return ret; -} - -static inline unsigned _vring_size(unsigned int num, unsigned long align) -{ - return ((sizeof(struct vring_desc) * num + sizeof(__u16) * (3 + num) - + align - 1) & ~(align - 1)) - + sizeof(__u16) * 3 + sizeof(struct vring_used_elem) * num; -} - -/* - * This initialization routine requires at least one - * vring i.e. vr0. vr1 is optional. - */ -static void * -init_vr(struct mic_info *mic, int fd, int type, - struct mic_vring *vr0, struct mic_vring *vr1, int num_vq) -{ - int vr_size; - char *va; - - vr_size = PAGE_ALIGN(_vring_size(MIC_VRING_ENTRIES, - MIC_VIRTIO_RING_ALIGN) + - sizeof(struct _mic_vring_info)); - va = mmap(NULL, MIC_DEVICE_PAGE_END + vr_size * num_vq, - PROT_READ, MAP_SHARED, fd, 0); - if (MAP_FAILED == va) { - mpsslog("%s %s %d mmap failed errno %s\n", - mic->name, __func__, __LINE__, - strerror(errno)); - goto done; - } - set_dp(mic, type, va); - vr0->va = (struct mic_vring *)&va[MIC_DEVICE_PAGE_END]; - vr0->info = vr0->va + - _vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN); - vring_init(&vr0->vr, - MIC_VRING_ENTRIES, vr0->va, MIC_VIRTIO_RING_ALIGN); - mpsslog("%s %s vr0 %p vr0->info %p vr_size 0x%x vring 0x%x ", - __func__, mic->name, vr0->va, vr0->info, vr_size, - _vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN)); - mpsslog("magic 0x%x expected 0x%x\n", - le32toh(vr0->info->magic), MIC_MAGIC + type); - assert(le32toh(vr0->info->magic) == MIC_MAGIC + type); - if (vr1) { - vr1->va = (struct mic_vring *) - &va[MIC_DEVICE_PAGE_END + vr_size]; - vr1->info = vr1->va + _vring_size(MIC_VRING_ENTRIES, - MIC_VIRTIO_RING_ALIGN); - vring_init(&vr1->vr, - MIC_VRING_ENTRIES, vr1->va, MIC_VIRTIO_RING_ALIGN); - mpsslog("%s %s vr1 %p vr1->info %p vr_size 0x%x vring 0x%x ", - __func__, mic->name, vr1->va, vr1->info, vr_size, - _vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN)); - mpsslog("magic 0x%x expected 0x%x\n", - le32toh(vr1->info->magic), MIC_MAGIC + type + 1); - assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1); - } -done: - return va; -} - -static int -wait_for_card_driver(struct mic_info *mic, int fd, int type) -{ - struct pollfd pollfd; - int err; - struct mic_device_desc *desc = get_device_desc(mic, type); - __u8 prev_status; - - if (!desc) - return -ENODEV; - prev_status = desc->status; - pollfd.fd = fd; - mpsslog("%s %s Waiting .... desc-> type %d status 0x%x\n", - mic->name, __func__, type, desc->status); - - while (1) { - pollfd.events = POLLIN; - pollfd.revents = 0; - err = poll(&pollfd, 1, -1); - if (err < 0) { - mpsslog("%s %s poll failed %s\n", - mic->name, __func__, strerror(errno)); - continue; - } - - if (pollfd.revents) { - if (desc->status != prev_status) { - mpsslog("%s %s Waiting... desc-> type %d " - "status 0x%x\n", - mic->name, __func__, type, - desc->status); - prev_status = desc->status; - } - if (desc->status & VIRTIO_CONFIG_S_DRIVER_OK) { - mpsslog("%s %s poll.revents %d\n", - mic->name, __func__, pollfd.revents); - mpsslog("%s %s desc-> type %d status 0x%x\n", - mic->name, __func__, type, - desc->status); - break; - } - } - } - return 0; -} - -/* Spin till we have some descriptors */ -static void -spin_for_descriptors(struct mic_info *mic, struct mic_vring *vr) -{ - __u16 avail_idx = read_avail_idx(vr); - - while (avail_idx == le16toh(ACCESS_ONCE(vr->vr.avail->idx))) { -#ifdef DEBUG - mpsslog("%s %s waiting for desc avail %d info_avail %d\n", - mic->name, __func__, - le16toh(vr->vr.avail->idx), vr->info->avail_idx); -#endif - sched_yield(); - } -} - -static void * -virtio_net(void *arg) -{ - static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)]; - static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64))); - struct iovec vnet_iov[2][2] = { - { { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) }, - { .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } }, - { { .iov_base = vnet_hdr[1], .iov_len = sizeof(vnet_hdr[1]) }, - { .iov_base = vnet_buf[1], .iov_len = sizeof(vnet_buf[1]) } }, - }; - struct iovec *iov0 = vnet_iov[0], *iov1 = vnet_iov[1]; - struct mic_info *mic = (struct mic_info *)arg; - char if_name[IFNAMSIZ]; - struct pollfd net_poll[MAX_NET_FD]; - struct mic_vring tx_vr, rx_vr; - struct mic_copy_desc copy; - struct mic_device_desc *desc; - int err; - - snprintf(if_name, IFNAMSIZ, "mic%d", mic->id); - mic->mic_net.tap_fd = tun_alloc(mic, if_name); - if (mic->mic_net.tap_fd < 0) - goto done; - - if (tap_configure(mic, if_name)) - goto done; - mpsslog("MIC name %s id %d\n", mic->name, mic->id); - - net_poll[NET_FD_VIRTIO_NET].fd = mic->mic_net.virtio_net_fd; - net_poll[NET_FD_VIRTIO_NET].events = POLLIN; - net_poll[NET_FD_TUN].fd = mic->mic_net.tap_fd; - net_poll[NET_FD_TUN].events = POLLIN; - - if (MAP_FAILED == init_vr(mic, mic->mic_net.virtio_net_fd, - VIRTIO_ID_NET, &tx_vr, &rx_vr, - virtnet_dev_page.dd.num_vq)) { - mpsslog("%s init_vr failed %s\n", - mic->name, strerror(errno)); - goto done; - } - - copy.iovcnt = 2; - desc = get_device_desc(mic, VIRTIO_ID_NET); - - while (1) { - ssize_t len; - - net_poll[NET_FD_VIRTIO_NET].revents = 0; - net_poll[NET_FD_TUN].revents = 0; - - /* Start polling for data from tap and virtio net */ - err = poll(net_poll, 2, -1); - if (err < 0) { - mpsslog("%s poll failed %s\n", - __func__, strerror(errno)); - continue; - } - if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK)) { - err = wait_for_card_driver(mic, - mic->mic_net.virtio_net_fd, - VIRTIO_ID_NET); - if (err) { - mpsslog("%s %s %d Exiting...\n", - mic->name, __func__, __LINE__); - break; - } - } - /* - * Check if there is data to be read from TUN and write to - * virtio net fd if there is. - */ - if (net_poll[NET_FD_TUN].revents & POLLIN) { - copy.iov = iov0; - len = readv(net_poll[NET_FD_TUN].fd, - copy.iov, copy.iovcnt); - if (len > 0) { - struct virtio_net_hdr *hdr - = (struct virtio_net_hdr *)vnet_hdr[0]; - - /* Disable checksums on the card since we are on - a reliable PCIe link */ - hdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID; -#ifdef DEBUG - mpsslog("%s %s %d hdr->flags 0x%x ", mic->name, - __func__, __LINE__, hdr->flags); - mpsslog("copy.out_len %d hdr->gso_type 0x%x\n", - copy.out_len, hdr->gso_type); -#endif -#ifdef DEBUG - disp_iovec(mic, copy, __func__, __LINE__); - mpsslog("%s %s %d read from tap 0x%lx\n", - mic->name, __func__, __LINE__, - len); -#endif - spin_for_descriptors(mic, &tx_vr); - txrx_prepare(VIRTIO_ID_NET, 1, &tx_vr, ©, - len); - - err = mic_virtio_copy(mic, - mic->mic_net.virtio_net_fd, &tx_vr, - ©); - if (err < 0) { - mpsslog("%s %s %d mic_virtio_copy %s\n", - mic->name, __func__, __LINE__, - strerror(errno)); - } - if (!err) - verify_out_len(mic, ©); -#ifdef DEBUG - disp_iovec(mic, copy, __func__, __LINE__); - mpsslog("%s %s %d wrote to net 0x%lx\n", - mic->name, __func__, __LINE__, - sum_iovec_len(©)); -#endif - /* Reinitialize IOV for next run */ - iov0[1].iov_len = MAX_NET_PKT_SIZE; - } else if (len < 0) { - disp_iovec(mic, ©, __func__, __LINE__); - mpsslog("%s %s %d read failed %s ", mic->name, - __func__, __LINE__, strerror(errno)); - mpsslog("cnt %d sum %zd\n", - copy.iovcnt, sum_iovec_len(©)); - } - } - - /* - * Check if there is data to be read from virtio net and - * write to TUN if there is. - */ - if (net_poll[NET_FD_VIRTIO_NET].revents & POLLIN) { - while (rx_vr.info->avail_idx != - le16toh(rx_vr.vr.avail->idx)) { - copy.iov = iov1; - txrx_prepare(VIRTIO_ID_NET, 0, &rx_vr, ©, - MAX_NET_PKT_SIZE - + sizeof(struct virtio_net_hdr)); - - err = mic_virtio_copy(mic, - mic->mic_net.virtio_net_fd, &rx_vr, - ©); - if (!err) { -#ifdef DEBUG - struct virtio_net_hdr *hdr - = (struct virtio_net_hdr *) - vnet_hdr[1]; - - mpsslog("%s %s %d hdr->flags 0x%x, ", - mic->name, __func__, __LINE__, - hdr->flags); - mpsslog("out_len %d gso_type 0x%x\n", - copy.out_len, - hdr->gso_type); -#endif - /* Set the correct output iov_len */ - iov1[1].iov_len = copy.out_len - - sizeof(struct virtio_net_hdr); - verify_out_len(mic, ©); -#ifdef DEBUG - disp_iovec(mic, copy, __func__, - __LINE__); - mpsslog("%s %s %d ", - mic->name, __func__, __LINE__); - mpsslog("read from net 0x%lx\n", - sum_iovec_len(copy)); -#endif - len = writev(net_poll[NET_FD_TUN].fd, - copy.iov, copy.iovcnt); - if (len != sum_iovec_len(©)) { - mpsslog("Tun write failed %s ", - strerror(errno)); - mpsslog("len 0x%zx ", len); - mpsslog("read_len 0x%zx\n", - sum_iovec_len(©)); - } else { -#ifdef DEBUG - disp_iovec(mic, ©, __func__, - __LINE__); - mpsslog("%s %s %d ", - mic->name, __func__, - __LINE__); - mpsslog("wrote to tap 0x%lx\n", - len); -#endif - } - } else { - mpsslog("%s %s %d mic_virtio_copy %s\n", - mic->name, __func__, __LINE__, - strerror(errno)); - break; - } - } - } - if (net_poll[NET_FD_VIRTIO_NET].revents & POLLERR) - mpsslog("%s: %s: POLLERR\n", __func__, mic->name); - } -done: - pthread_exit(NULL); -} - -/* virtio_console */ -#define VIRTIO_CONSOLE_FD 0 -#define MONITOR_FD (VIRTIO_CONSOLE_FD + 1) -#define MAX_CONSOLE_FD (MONITOR_FD + 1) /* must be the last one + 1 */ -#define MAX_BUFFER_SIZE PAGE_SIZE - -static void * -virtio_console(void *arg) -{ - static __u8 vcons_buf[2][PAGE_SIZE]; - struct iovec vcons_iov[2] = { - { .iov_base = vcons_buf[0], .iov_len = sizeof(vcons_buf[0]) }, - { .iov_base = vcons_buf[1], .iov_len = sizeof(vcons_buf[1]) }, - }; - struct iovec *iov0 = &vcons_iov[0], *iov1 = &vcons_iov[1]; - struct mic_info *mic = (struct mic_info *)arg; - int err; - struct pollfd console_poll[MAX_CONSOLE_FD]; - int pty_fd; - char *pts_name; - ssize_t len; - struct mic_vring tx_vr, rx_vr; - struct mic_copy_desc copy; - struct mic_device_desc *desc; - - pty_fd = posix_openpt(O_RDWR); - if (pty_fd < 0) { - mpsslog("can't open a pseudoterminal master device: %s\n", - strerror(errno)); - goto _return; - } - pts_name = ptsname(pty_fd); - if (pts_name == NULL) { - mpsslog("can't get pts name\n"); - goto _close_pty; - } - printf("%s console message goes to %s\n", mic->name, pts_name); - mpsslog("%s console message goes to %s\n", mic->name, pts_name); - err = grantpt(pty_fd); - if (err < 0) { - mpsslog("can't grant access: %s %s\n", - pts_name, strerror(errno)); - goto _close_pty; - } - err = unlockpt(pty_fd); - if (err < 0) { - mpsslog("can't unlock a pseudoterminal: %s %s\n", - pts_name, strerror(errno)); - goto _close_pty; - } - console_poll[MONITOR_FD].fd = pty_fd; - console_poll[MONITOR_FD].events = POLLIN; - - console_poll[VIRTIO_CONSOLE_FD].fd = mic->mic_console.virtio_console_fd; - console_poll[VIRTIO_CONSOLE_FD].events = POLLIN; - - if (MAP_FAILED == init_vr(mic, mic->mic_console.virtio_console_fd, - VIRTIO_ID_CONSOLE, &tx_vr, &rx_vr, - virtcons_dev_page.dd.num_vq)) { - mpsslog("%s init_vr failed %s\n", - mic->name, strerror(errno)); - goto _close_pty; - } - - copy.iovcnt = 1; - desc = get_device_desc(mic, VIRTIO_ID_CONSOLE); - - for (;;) { - console_poll[MONITOR_FD].revents = 0; - console_poll[VIRTIO_CONSOLE_FD].revents = 0; - err = poll(console_poll, MAX_CONSOLE_FD, -1); - if (err < 0) { - mpsslog("%s %d: poll failed: %s\n", __func__, __LINE__, - strerror(errno)); - continue; - } - if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK)) { - err = wait_for_card_driver(mic, - mic->mic_console.virtio_console_fd, - VIRTIO_ID_CONSOLE); - if (err) { - mpsslog("%s %s %d Exiting...\n", - mic->name, __func__, __LINE__); - break; - } - } - - if (console_poll[MONITOR_FD].revents & POLLIN) { - copy.iov = iov0; - len = readv(pty_fd, copy.iov, copy.iovcnt); - if (len > 0) { -#ifdef DEBUG - disp_iovec(mic, copy, __func__, __LINE__); - mpsslog("%s %s %d read from tap 0x%lx\n", - mic->name, __func__, __LINE__, - len); -#endif - spin_for_descriptors(mic, &tx_vr); - txrx_prepare(VIRTIO_ID_CONSOLE, 1, &tx_vr, - ©, len); - - err = mic_virtio_copy(mic, - mic->mic_console.virtio_console_fd, - &tx_vr, ©); - if (err < 0) { - mpsslog("%s %s %d mic_virtio_copy %s\n", - mic->name, __func__, __LINE__, - strerror(errno)); - } - if (!err) - verify_out_len(mic, ©); -#ifdef DEBUG - disp_iovec(mic, copy, __func__, __LINE__); - mpsslog("%s %s %d wrote to net 0x%lx\n", - mic->name, __func__, __LINE__, - sum_iovec_len(copy)); -#endif - /* Reinitialize IOV for next run */ - iov0->iov_len = PAGE_SIZE; - } else if (len < 0) { - disp_iovec(mic, ©, __func__, __LINE__); - mpsslog("%s %s %d read failed %s ", - mic->name, __func__, __LINE__, - strerror(errno)); - mpsslog("cnt %d sum %zd\n", - copy.iovcnt, sum_iovec_len(©)); - } - } - - if (console_poll[VIRTIO_CONSOLE_FD].revents & POLLIN) { - while (rx_vr.info->avail_idx != - le16toh(rx_vr.vr.avail->idx)) { - copy.iov = iov1; - txrx_prepare(VIRTIO_ID_CONSOLE, 0, &rx_vr, - ©, PAGE_SIZE); - - err = mic_virtio_copy(mic, - mic->mic_console.virtio_console_fd, - &rx_vr, ©); - if (!err) { - /* Set the correct output iov_len */ - iov1->iov_len = copy.out_len; - verify_out_len(mic, ©); -#ifdef DEBUG - disp_iovec(mic, copy, __func__, - __LINE__); - mpsslog("%s %s %d ", - mic->name, __func__, __LINE__); - mpsslog("read from net 0x%lx\n", - sum_iovec_len(copy)); -#endif - len = writev(pty_fd, - copy.iov, copy.iovcnt); - if (len != sum_iovec_len(©)) { - mpsslog("Tun write failed %s ", - strerror(errno)); - mpsslog("len 0x%zx ", len); - mpsslog("read_len 0x%zx\n", - sum_iovec_len(©)); - } else { -#ifdef DEBUG - disp_iovec(mic, copy, __func__, - __LINE__); - mpsslog("%s %s %d ", - mic->name, __func__, - __LINE__); - mpsslog("wrote to tap 0x%lx\n", - len); -#endif - } - } else { - mpsslog("%s %s %d mic_virtio_copy %s\n", - mic->name, __func__, __LINE__, - strerror(errno)); - break; - } - } - } - if (console_poll[NET_FD_VIRTIO_NET].revents & POLLERR) - mpsslog("%s: %s: POLLERR\n", __func__, mic->name); - } -_close_pty: - close(pty_fd); -_return: - pthread_exit(NULL); -} - -static void -add_virtio_device(struct mic_info *mic, struct mic_device_desc *dd) -{ - char path[PATH_MAX]; - int fd, err; - - snprintf(path, PATH_MAX, "/dev/vop_virtio%d", mic->id); - fd = open(path, O_RDWR); - if (fd < 0) { - mpsslog("Could not open %s %s\n", path, strerror(errno)); - return; - } - - err = ioctl(fd, MIC_VIRTIO_ADD_DEVICE, dd); - if (err < 0) { - mpsslog("Could not add %d %s\n", dd->type, strerror(errno)); - close(fd); - return; - } - switch (dd->type) { - case VIRTIO_ID_NET: - mic->mic_net.virtio_net_fd = fd; - mpsslog("Added VIRTIO_ID_NET for %s\n", mic->name); - break; - case VIRTIO_ID_CONSOLE: - mic->mic_console.virtio_console_fd = fd; - mpsslog("Added VIRTIO_ID_CONSOLE for %s\n", mic->name); - break; - case VIRTIO_ID_BLOCK: - mic->mic_virtblk.virtio_block_fd = fd; - mpsslog("Added VIRTIO_ID_BLOCK for %s\n", mic->name); - break; - } -} - -static bool -set_backend_file(struct mic_info *mic) -{ - FILE *config; - char buff[PATH_MAX], *line, *evv, *p; - - snprintf(buff, PATH_MAX, "%s/mpssd%03d.conf", mic_config_dir, mic->id); - config = fopen(buff, "r"); - if (config == NULL) - return false; - do { /* look for "virtblk_backend=XXXX" */ - line = fgets(buff, PATH_MAX, config); - if (line == NULL) - break; - if (*line == '#') - continue; - p = strchr(line, '\n'); - if (p) - *p = '\0'; - } while (strncmp(line, virtblk_backend, strlen(virtblk_backend)) != 0); - fclose(config); - if (line == NULL) - return false; - evv = strchr(line, '='); - if (evv == NULL) - return false; - mic->mic_virtblk.backend_file = malloc(strlen(evv) + 1); - if (mic->mic_virtblk.backend_file == NULL) { - mpsslog("%s %d can't allocate memory\n", mic->name, mic->id); - return false; - } - strcpy(mic->mic_virtblk.backend_file, evv + 1); - return true; -} - -#define SECTOR_SIZE 512 -static bool -set_backend_size(struct mic_info *mic) -{ - mic->mic_virtblk.backend_size = lseek(mic->mic_virtblk.backend, 0, - SEEK_END); - if (mic->mic_virtblk.backend_size < 0) { - mpsslog("%s: can't seek: %s\n", - mic->name, mic->mic_virtblk.backend_file); - return false; - } - virtblk_dev_page.blk_config.capacity = - mic->mic_virtblk.backend_size / SECTOR_SIZE; - if ((mic->mic_virtblk.backend_size % SECTOR_SIZE) != 0) - virtblk_dev_page.blk_config.capacity++; - - virtblk_dev_page.blk_config.capacity = - htole64(virtblk_dev_page.blk_config.capacity); - - return true; -} - -static bool -open_backend(struct mic_info *mic) -{ - if (!set_backend_file(mic)) - goto _error_exit; - mic->mic_virtblk.backend = open(mic->mic_virtblk.backend_file, O_RDWR); - if (mic->mic_virtblk.backend < 0) { - mpsslog("%s: can't open: %s\n", mic->name, - mic->mic_virtblk.backend_file); - goto _error_free; - } - if (!set_backend_size(mic)) - goto _error_close; - mic->mic_virtblk.backend_addr = mmap(NULL, - mic->mic_virtblk.backend_size, - PROT_READ|PROT_WRITE, MAP_SHARED, - mic->mic_virtblk.backend, 0L); - if (mic->mic_virtblk.backend_addr == MAP_FAILED) { - mpsslog("%s: can't map: %s %s\n", - mic->name, mic->mic_virtblk.backend_file, - strerror(errno)); - goto _error_close; - } - return true; - - _error_close: - close(mic->mic_virtblk.backend); - _error_free: - free(mic->mic_virtblk.backend_file); - _error_exit: - return false; -} - -static void -close_backend(struct mic_info *mic) -{ - munmap(mic->mic_virtblk.backend_addr, mic->mic_virtblk.backend_size); - close(mic->mic_virtblk.backend); - free(mic->mic_virtblk.backend_file); -} - -static bool -start_virtblk(struct mic_info *mic, struct mic_vring *vring) -{ - if (((unsigned long)&virtblk_dev_page.blk_config % 8) != 0) { - mpsslog("%s: blk_config is not 8 byte aligned.\n", - mic->name); - return false; - } - add_virtio_device(mic, &virtblk_dev_page.dd); - if (MAP_FAILED == init_vr(mic, mic->mic_virtblk.virtio_block_fd, - VIRTIO_ID_BLOCK, vring, NULL, - virtblk_dev_page.dd.num_vq)) { - mpsslog("%s init_vr failed %s\n", - mic->name, strerror(errno)); - return false; - } - return true; -} - -static void -stop_virtblk(struct mic_info *mic) -{ - int vr_size, ret; - - vr_size = PAGE_ALIGN(_vring_size(MIC_VRING_ENTRIES, - MIC_VIRTIO_RING_ALIGN) + - sizeof(struct _mic_vring_info)); - ret = munmap(mic->mic_virtblk.block_dp, - MIC_DEVICE_PAGE_END + vr_size * virtblk_dev_page.dd.num_vq); - if (ret < 0) - mpsslog("%s munmap errno %d\n", mic->name, errno); - close(mic->mic_virtblk.virtio_block_fd); -} - -static __u8 -header_error_check(struct vring_desc *desc) -{ - if (le32toh(desc->len) != sizeof(struct virtio_blk_outhdr)) { - mpsslog("%s() %d: length is not sizeof(virtio_blk_outhd)\n", - __func__, __LINE__); - return -EIO; - } - if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT)) { - mpsslog("%s() %d: alone\n", - __func__, __LINE__); - return -EIO; - } - if (le16toh(desc->flags) & VRING_DESC_F_WRITE) { - mpsslog("%s() %d: not read\n", - __func__, __LINE__); - return -EIO; - } - return 0; -} - -static int -read_header(int fd, struct virtio_blk_outhdr *hdr, __u32 desc_idx) -{ - struct iovec iovec; - struct mic_copy_desc copy; - - iovec.iov_len = sizeof(*hdr); - iovec.iov_base = hdr; - copy.iov = &iovec; - copy.iovcnt = 1; - copy.vr_idx = 0; /* only one vring on virtio_block */ - copy.update_used = false; /* do not update used index */ - return ioctl(fd, MIC_VIRTIO_COPY_DESC, ©); -} - -static int -transfer_blocks(int fd, struct iovec *iovec, __u32 iovcnt) -{ - struct mic_copy_desc copy; - - copy.iov = iovec; - copy.iovcnt = iovcnt; - copy.vr_idx = 0; /* only one vring on virtio_block */ - copy.update_used = false; /* do not update used index */ - return ioctl(fd, MIC_VIRTIO_COPY_DESC, ©); -} - -static __u8 -status_error_check(struct vring_desc *desc) -{ - if (le32toh(desc->len) != sizeof(__u8)) { - mpsslog("%s() %d: length is not sizeof(status)\n", - __func__, __LINE__); - return -EIO; - } - return 0; -} - -static int -write_status(int fd, __u8 *status) -{ - struct iovec iovec; - struct mic_copy_desc copy; - - iovec.iov_base = status; - iovec.iov_len = sizeof(*status); - copy.iov = &iovec; - copy.iovcnt = 1; - copy.vr_idx = 0; /* only one vring on virtio_block */ - copy.update_used = true; /* Update used index */ - return ioctl(fd, MIC_VIRTIO_COPY_DESC, ©); -} - -#ifndef VIRTIO_BLK_T_GET_ID -#define VIRTIO_BLK_T_GET_ID 8 -#endif - -static void * -virtio_block(void *arg) -{ - struct mic_info *mic = (struct mic_info *)arg; - int ret; - struct pollfd block_poll; - struct mic_vring vring; - __u16 avail_idx; - __u32 desc_idx; - struct vring_desc *desc; - struct iovec *iovec, *piov; - __u8 status; - __u32 buffer_desc_idx; - struct virtio_blk_outhdr hdr; - void *fos; - - for (;;) { /* forever */ - if (!open_backend(mic)) { /* No virtblk */ - for (mic->mic_virtblk.signaled = 0; - !mic->mic_virtblk.signaled;) - sleep(1); - continue; - } - - /* backend file is specified. */ - if (!start_virtblk(mic, &vring)) - goto _close_backend; - iovec = malloc(sizeof(*iovec) * - le32toh(virtblk_dev_page.blk_config.seg_max)); - if (!iovec) { - mpsslog("%s: can't alloc iovec: %s\n", - mic->name, strerror(ENOMEM)); - goto _stop_virtblk; - } - - block_poll.fd = mic->mic_virtblk.virtio_block_fd; - block_poll.events = POLLIN; - for (mic->mic_virtblk.signaled = 0; - !mic->mic_virtblk.signaled;) { - block_poll.revents = 0; - /* timeout in 1 sec to see signaled */ - ret = poll(&block_poll, 1, 1000); - if (ret < 0) { - mpsslog("%s %d: poll failed: %s\n", - __func__, __LINE__, - strerror(errno)); - continue; - } - - if (!(block_poll.revents & POLLIN)) { -#ifdef DEBUG - mpsslog("%s %d: block_poll.revents=0x%x\n", - __func__, __LINE__, block_poll.revents); -#endif - continue; - } - - /* POLLIN */ - while (vring.info->avail_idx != - le16toh(vring.vr.avail->idx)) { - /* read header element */ - avail_idx = - vring.info->avail_idx & - (vring.vr.num - 1); - desc_idx = le16toh( - vring.vr.avail->ring[avail_idx]); - desc = &vring.vr.desc[desc_idx]; -#ifdef DEBUG - mpsslog("%s() %d: avail_idx=%d ", - __func__, __LINE__, - vring.info->avail_idx); - mpsslog("vring.vr.num=%d desc=%p\n", - vring.vr.num, desc); -#endif - status = header_error_check(desc); - ret = read_header( - mic->mic_virtblk.virtio_block_fd, - &hdr, desc_idx); - if (ret < 0) { - mpsslog("%s() %d %s: ret=%d %s\n", - __func__, __LINE__, - mic->name, ret, - strerror(errno)); - break; - } - /* buffer element */ - piov = iovec; - status = 0; - fos = mic->mic_virtblk.backend_addr + - (hdr.sector * SECTOR_SIZE); - buffer_desc_idx = next_desc(desc); - desc_idx = buffer_desc_idx; - for (desc = &vring.vr.desc[buffer_desc_idx]; - desc->flags & VRING_DESC_F_NEXT; - desc_idx = next_desc(desc), - desc = &vring.vr.desc[desc_idx]) { - piov->iov_len = desc->len; - piov->iov_base = fos; - piov++; - fos += desc->len; - } - /* Returning NULLs for VIRTIO_BLK_T_GET_ID. */ - if (hdr.type & ~(VIRTIO_BLK_T_OUT | - VIRTIO_BLK_T_GET_ID)) { - /* - VIRTIO_BLK_T_IN - does not do - anything. Probably for documenting. - VIRTIO_BLK_T_SCSI_CMD - for - virtio_scsi. - VIRTIO_BLK_T_FLUSH - turned off in - config space. - VIRTIO_BLK_T_BARRIER - defined but not - used in anywhere. - */ - mpsslog("%s() %d: type %x ", - __func__, __LINE__, - hdr.type); - mpsslog("is not supported\n"); - status = -ENOTSUP; - - } else { - ret = transfer_blocks( - mic->mic_virtblk.virtio_block_fd, - iovec, - piov - iovec); - if (ret < 0 && - status != 0) - status = ret; - } - /* write status and update used pointer */ - if (status != 0) - status = status_error_check(desc); - ret = write_status( - mic->mic_virtblk.virtio_block_fd, - &status); -#ifdef DEBUG - mpsslog("%s() %d: write status=%d on desc=%p\n", - __func__, __LINE__, - status, desc); -#endif - } - } - free(iovec); -_stop_virtblk: - stop_virtblk(mic); -_close_backend: - close_backend(mic); - } /* forever */ - - pthread_exit(NULL); -} - -static void -reset(struct mic_info *mic) -{ -#define RESET_TIMEOUT 120 - int i = RESET_TIMEOUT; - setsysfs(mic->name, "state", "reset"); - while (i) { - char *state; - state = readsysfs(mic->name, "state"); - if (!state) - goto retry; - mpsslog("%s: %s %d state %s\n", - mic->name, __func__, __LINE__, state); - - if (!strcmp(state, "ready")) { - free(state); - break; - } - free(state); -retry: - sleep(1); - i--; - } -} - -static int -get_mic_shutdown_status(struct mic_info *mic, char *shutdown_status) -{ - if (!strcmp(shutdown_status, "nop")) - return MIC_NOP; - if (!strcmp(shutdown_status, "crashed")) - return MIC_CRASHED; - if (!strcmp(shutdown_status, "halted")) - return MIC_HALTED; - if (!strcmp(shutdown_status, "poweroff")) - return MIC_POWER_OFF; - if (!strcmp(shutdown_status, "restart")) - return MIC_RESTART; - mpsslog("%s: BUG invalid status %s\n", mic->name, shutdown_status); - /* Invalid state */ - assert(0); -}; - -static int get_mic_state(struct mic_info *mic) -{ - char *state = NULL; - enum mic_states mic_state; - - while (!state) { - state = readsysfs(mic->name, "state"); - sleep(1); - } - mpsslog("%s: %s %d state %s\n", - mic->name, __func__, __LINE__, state); - - if (!strcmp(state, "ready")) { - mic_state = MIC_READY; - } else if (!strcmp(state, "booting")) { - mic_state = MIC_BOOTING; - } else if (!strcmp(state, "online")) { - mic_state = MIC_ONLINE; - } else if (!strcmp(state, "shutting_down")) { - mic_state = MIC_SHUTTING_DOWN; - } else if (!strcmp(state, "reset_failed")) { - mic_state = MIC_RESET_FAILED; - } else if (!strcmp(state, "resetting")) { - mic_state = MIC_RESETTING; - } else { - mpsslog("%s: BUG invalid state %s\n", mic->name, state); - assert(0); - } - - free(state); - return mic_state; -}; - -static void mic_handle_shutdown(struct mic_info *mic) -{ -#define SHUTDOWN_TIMEOUT 60 - int i = SHUTDOWN_TIMEOUT; - char *shutdown_status; - while (i) { - shutdown_status = readsysfs(mic->name, "shutdown_status"); - if (!shutdown_status) { - sleep(1); - continue; - } - mpsslog("%s: %s %d shutdown_status %s\n", - mic->name, __func__, __LINE__, shutdown_status); - switch (get_mic_shutdown_status(mic, shutdown_status)) { - case MIC_RESTART: - mic->restart = 1; - case MIC_HALTED: - case MIC_POWER_OFF: - case MIC_CRASHED: - free(shutdown_status); - goto reset; - default: - break; - } - free(shutdown_status); - sleep(1); - i--; - } -reset: - if (!i) - mpsslog("%s: %s %d timing out waiting for shutdown_status %s\n", - mic->name, __func__, __LINE__, shutdown_status); - reset(mic); -} - -static int open_state_fd(struct mic_info *mic) -{ - char pathname[PATH_MAX]; - int fd; - - snprintf(pathname, PATH_MAX - 1, "%s/%s/%s", - MICSYSFSDIR, mic->name, "state"); - - fd = open(pathname, O_RDONLY); - if (fd < 0) - mpsslog("%s: opening file %s failed %s\n", - mic->name, pathname, strerror(errno)); - return fd; -} - -static int block_till_state_change(int fd, struct mic_info *mic) -{ - struct pollfd ufds[1]; - char value[PAGE_SIZE]; - int ret; - - ufds[0].fd = fd; - ufds[0].events = POLLERR | POLLPRI; - ret = poll(ufds, 1, -1); - if (ret < 0) { - mpsslog("%s: %s %d poll failed %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - return ret; - } - - ret = lseek(fd, 0, SEEK_SET); - if (ret < 0) { - mpsslog("%s: %s %d Failed to seek to 0: %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - return ret; - } - - ret = read(fd, value, sizeof(value)); - if (ret < 0) { - mpsslog("%s: %s %d Failed to read sysfs entry: %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - return ret; - } - - return 0; -} - -static void * -mic_config(void *arg) -{ - struct mic_info *mic = (struct mic_info *)arg; - int fd, ret, stat = 0; - - fd = open_state_fd(mic); - if (fd < 0) { - mpsslog("%s: %s %d open state fd failed %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - goto exit; - } - - do { - ret = block_till_state_change(fd, mic); - if (ret < 0) { - mpsslog("%s: %s %d block_till_state_change error %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - goto close_exit; - } - - switch (get_mic_state(mic)) { - case MIC_SHUTTING_DOWN: - mic_handle_shutdown(mic); - break; - case MIC_READY: - case MIC_RESET_FAILED: - ret = kill(mic->pid, SIGTERM); - mpsslog("%s: %s %d kill pid %d ret %d\n", - mic->name, __func__, __LINE__, - mic->pid, ret); - if (!ret) { - ret = waitpid(mic->pid, &stat, - WIFSIGNALED(stat)); - mpsslog("%s: %s %d waitpid ret %d pid %d\n", - mic->name, __func__, __LINE__, - ret, mic->pid); - } - if (mic->boot_on_resume) { - setsysfs(mic->name, "state", "boot"); - mic->boot_on_resume = 0; - } - goto close_exit; - default: - break; - } - } while (1); - -close_exit: - close(fd); -exit: - init_mic(mic); - pthread_exit(NULL); -} - -static void -set_cmdline(struct mic_info *mic) -{ - char buffer[PATH_MAX]; - int len; - - len = snprintf(buffer, PATH_MAX, - "clocksource=tsc highres=off nohz=off "); - len += snprintf(buffer + len, PATH_MAX - len, - "cpufreq_on;corec6_off;pc3_off;pc6_off "); - len += snprintf(buffer + len, PATH_MAX - len, - "ifcfg=static;address,172.31.%d.1;netmask,255.255.255.0", - mic->id + 1); - - setsysfs(mic->name, "cmdline", buffer); - mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer); - snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id + 1); - mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer); -} - -static void -set_log_buf_info(struct mic_info *mic) -{ - int fd; - off_t len; - char system_map[] = "/lib/firmware/mic/System.map"; - char *map, *temp, log_buf[17] = {'\0'}; - - fd = open(system_map, O_RDONLY); - if (fd < 0) { - mpsslog("%s: Opening System.map failed: %d\n", - mic->name, errno); - return; - } - len = lseek(fd, 0, SEEK_END); - if (len < 0) { - mpsslog("%s: Reading System.map size failed: %d\n", - mic->name, errno); - close(fd); - return; - } - map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0); - if (map == MAP_FAILED) { - mpsslog("%s: mmap of System.map failed: %d\n", - mic->name, errno); - close(fd); - return; - } - temp = strstr(map, "__log_buf"); - if (!temp) { - mpsslog("%s: __log_buf not found: %d\n", mic->name, errno); - munmap(map, len); - close(fd); - return; - } - strncpy(log_buf, temp - 19, 16); - setsysfs(mic->name, "log_buf_addr", log_buf); - mpsslog("%s: log_buf_addr: %s\n", mic->name, log_buf); - temp = strstr(map, "log_buf_len"); - if (!temp) { - mpsslog("%s: log_buf_len not found: %d\n", mic->name, errno); - munmap(map, len); - close(fd); - return; - } - strncpy(log_buf, temp - 19, 16); - setsysfs(mic->name, "log_buf_len", log_buf); - mpsslog("%s: log_buf_len: %s\n", mic->name, log_buf); - munmap(map, len); - close(fd); -} - -static void -change_virtblk_backend(int x, siginfo_t *siginfo, void *p) -{ - struct mic_info *mic; - - for (mic = mic_list.next; mic != NULL; mic = mic->next) - mic->mic_virtblk.signaled = 1/* true */; -} - -static void -set_mic_boot_params(struct mic_info *mic) -{ - set_log_buf_info(mic); - set_cmdline(mic); -} - -static void * -init_mic(void *arg) -{ - struct mic_info *mic = (struct mic_info *)arg; - struct sigaction ignore = { - .sa_flags = 0, - .sa_handler = SIG_IGN - }; - struct sigaction act = { - .sa_flags = SA_SIGINFO, - .sa_sigaction = change_virtblk_backend, - }; - char buffer[PATH_MAX]; - int err, fd; - - /* - * Currently, one virtio block device is supported for each MIC card - * at a time. Any user (or test) can send a SIGUSR1 to the MIC daemon. - * The signal informs the virtio block backend about a change in the - * configuration file which specifies the virtio backend file name on - * the host. Virtio block backend then re-reads the configuration file - * and switches to the new block device. This signalling mechanism may - * not be required once multiple virtio block devices are supported by - * the MIC daemon. - */ - sigaction(SIGUSR1, &ignore, NULL); -retry: - fd = open_state_fd(mic); - if (fd < 0) { - mpsslog("%s: %s %d open state fd failed %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - sleep(2); - goto retry; - } - - if (mic->restart) { - snprintf(buffer, PATH_MAX, "boot"); - setsysfs(mic->name, "state", buffer); - mpsslog("%s restarting mic %d\n", - mic->name, mic->restart); - mic->restart = 0; - } - - while (1) { - while (block_till_state_change(fd, mic)) { - mpsslog("%s: %s %d block_till_state_change error %s\n", - mic->name, __func__, __LINE__, strerror(errno)); - sleep(2); - continue; - } - - if (get_mic_state(mic) == MIC_BOOTING) - break; - } - - mic->pid = fork(); - switch (mic->pid) { - case 0: - add_virtio_device(mic, &virtcons_dev_page.dd); - add_virtio_device(mic, &virtnet_dev_page.dd); - err = pthread_create(&mic->mic_console.console_thread, NULL, - virtio_console, mic); - if (err) - mpsslog("%s virtcons pthread_create failed %s\n", - mic->name, strerror(err)); - err = pthread_create(&mic->mic_net.net_thread, NULL, - virtio_net, mic); - if (err) - mpsslog("%s virtnet pthread_create failed %s\n", - mic->name, strerror(err)); - err = pthread_create(&mic->mic_virtblk.block_thread, NULL, - virtio_block, mic); - if (err) - mpsslog("%s virtblk pthread_create failed %s\n", - mic->name, strerror(err)); - sigemptyset(&act.sa_mask); - err = sigaction(SIGUSR1, &act, NULL); - if (err) - mpsslog("%s sigaction SIGUSR1 failed %s\n", - mic->name, strerror(errno)); - while (1) - sleep(60); - case -1: - mpsslog("fork failed MIC name %s id %d errno %d\n", - mic->name, mic->id, errno); - break; - default: - err = pthread_create(&mic->config_thread, NULL, - mic_config, mic); - if (err) - mpsslog("%s mic_config pthread_create failed %s\n", - mic->name, strerror(err)); - } - - return NULL; -} - -static void -start_daemon(void) -{ - struct mic_info *mic; - int err; - - for (mic = mic_list.next; mic; mic = mic->next) { - set_mic_boot_params(mic); - err = pthread_create(&mic->init_thread, NULL, init_mic, mic); - if (err) - mpsslog("%s init_mic pthread_create failed %s\n", - mic->name, strerror(err)); - } - - while (1) - sleep(60); -} - -static int -init_mic_list(void) -{ - struct mic_info *mic = &mic_list; - struct dirent *file; - DIR *dp; - int cnt = 0; - - dp = opendir(MICSYSFSDIR); - if (!dp) - return 0; - - while ((file = readdir(dp)) != NULL) { - if (!strncmp(file->d_name, "mic", 3)) { - mic->next = calloc(1, sizeof(struct mic_info)); - if (mic->next) { - mic = mic->next; - mic->id = atoi(&file->d_name[3]); - mic->name = malloc(strlen(file->d_name) + 16); - if (mic->name) - strcpy(mic->name, file->d_name); - mpsslog("MIC name %s id %d\n", mic->name, - mic->id); - cnt++; - } - } - } - - closedir(dp); - return cnt; -} - -void -mpsslog(char *format, ...) -{ - va_list args; - char buffer[4096]; - char ts[52], *ts1; - time_t t; - - if (logfp == NULL) - return; - - va_start(args, format); - vsprintf(buffer, format, args); - va_end(args); - - time(&t); - ts1 = ctime_r(&t, ts); - ts1[strlen(ts1) - 1] = '\0'; - fprintf(logfp, "%s: %s", ts1, buffer); - - fflush(logfp); -} - -int -main(int argc, char *argv[]) -{ - int cnt; - pid_t pid; - - myname = argv[0]; - - logfp = fopen(LOGFILE_NAME, "a+"); - if (!logfp) { - fprintf(stderr, "cannot open logfile '%s'\n", LOGFILE_NAME); - exit(1); - } - pid = fork(); - switch (pid) { - case 0: - break; - case -1: - exit(2); - default: - exit(0); - } - - mpsslog("MIC Daemon start\n"); - - cnt = init_mic_list(); - if (cnt == 0) { - mpsslog("MIC module not loaded\n"); - exit(3); - } - mpsslog("MIC found %d devices\n", cnt); - - start_daemon(); - - exit(0); -} diff --git a/Documentation/mic/mpssd/mpssd.h b/Documentation/mic/mpssd/mpssd.h deleted file mode 100644 index 8bd64944aacc..000000000000 --- a/Documentation/mic/mpssd/mpssd.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Intel MIC Platform Software Stack (MPSS) - * - * Copyright(c) 2013 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, 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 for more details. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Intel MIC User Space Tools. - */ -#ifndef _MPSSD_H_ -#define _MPSSD_H_ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <unistd.h> -#include <dirent.h> -#include <libgen.h> -#include <pthread.h> -#include <stdarg.h> -#include <time.h> -#include <errno.h> -#include <sys/dir.h> -#include <sys/ioctl.h> -#include <sys/poll.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/mman.h> -#include <sys/utsname.h> -#include <sys/wait.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <pthread.h> -#include <signal.h> -#include <limits.h> -#include <syslog.h> -#include <getopt.h> -#include <net/if.h> -#include <linux/if_tun.h> -#include <linux/if_tun.h> -#include <linux/virtio_ids.h> - -#define MICSYSFSDIR "/sys/class/mic" -#define LOGFILE_NAME "/var/log/mpssd" -#define PAGE_SIZE 4096 - -struct mic_console_info { - pthread_t console_thread; - int virtio_console_fd; - void *console_dp; -}; - -struct mic_net_info { - pthread_t net_thread; - int virtio_net_fd; - int tap_fd; - void *net_dp; -}; - -struct mic_virtblk_info { - pthread_t block_thread; - int virtio_block_fd; - void *block_dp; - volatile sig_atomic_t signaled; - char *backend_file; - int backend; - void *backend_addr; - long backend_size; -}; - -struct mic_info { - int id; - char *name; - pthread_t config_thread; - pthread_t init_thread; - pid_t pid; - struct mic_console_info mic_console; - struct mic_net_info mic_net; - struct mic_virtblk_info mic_virtblk; - int restart; - int boot_on_resume; - struct mic_info *next; -}; - -__attribute__((format(printf, 1, 2))) -void mpsslog(char *format, ...); -char *readsysfs(char *dir, char *entry); -int setsysfs(char *dir, char *entry, char *value); -#endif diff --git a/Documentation/mic/mpssd/sysfs.c b/Documentation/mic/mpssd/sysfs.c deleted file mode 100644 index 8dd326936083..000000000000 --- a/Documentation/mic/mpssd/sysfs.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Intel MIC Platform Software Stack (MPSS) - * - * Copyright(c) 2013 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, 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 for more details. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Intel MIC User Space Tools. - */ - -#include "mpssd.h" - -#define PAGE_SIZE 4096 - -char * -readsysfs(char *dir, char *entry) -{ - char filename[PATH_MAX]; - char value[PAGE_SIZE]; - char *string = NULL; - int fd; - int len; - - if (dir == NULL) - snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry); - else - snprintf(filename, PATH_MAX, - "%s/%s/%s", MICSYSFSDIR, dir, entry); - - fd = open(filename, O_RDONLY); - if (fd < 0) { - mpsslog("Failed to open sysfs entry '%s': %s\n", - filename, strerror(errno)); - return NULL; - } - - len = read(fd, value, sizeof(value)); - if (len < 0) { - mpsslog("Failed to read sysfs entry '%s': %s\n", - filename, strerror(errno)); - goto readsys_ret; - } - if (len == 0) - goto readsys_ret; - - value[len - 1] = '\0'; - - string = malloc(strlen(value) + 1); - if (string) - strcpy(string, value); - -readsys_ret: - close(fd); - return string; -} - -int -setsysfs(char *dir, char *entry, char *value) -{ - char filename[PATH_MAX]; - char *oldvalue; - int fd, ret = 0; - - if (dir == NULL) - snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry); - else - snprintf(filename, PATH_MAX, "%s/%s/%s", - MICSYSFSDIR, dir, entry); - - oldvalue = readsysfs(dir, entry); - - fd = open(filename, O_RDWR); - if (fd < 0) { - ret = errno; - mpsslog("Failed to open sysfs entry '%s': %s\n", - filename, strerror(errno)); - goto done; - } - - if (!oldvalue || strcmp(value, oldvalue)) { - if (write(fd, value, strlen(value)) < 0) { - ret = errno; - mpsslog("Failed to write new sysfs entry '%s': %s\n", - filename, strerror(errno)); - } - } - close(fd); -done: - if (oldvalue) - free(oldvalue); - return ret; -} diff --git a/Documentation/misc-devices/Makefile b/Documentation/misc-devices/Makefile deleted file mode 100644 index e2b7aa4c9e21..000000000000 --- a/Documentation/misc-devices/Makefile +++ /dev/null @@ -1 +0,0 @@ -subdir-y := mei diff --git a/Documentation/misc-devices/mei/.gitignore b/Documentation/misc-devices/mei/.gitignore deleted file mode 100644 index f356b81ca1ec..000000000000 --- a/Documentation/misc-devices/mei/.gitignore +++ /dev/null @@ -1 +0,0 @@ -mei-amt-version diff --git a/Documentation/misc-devices/mei/Makefile b/Documentation/misc-devices/mei/Makefile deleted file mode 100644 index d758047d1b6d..000000000000 --- a/Documentation/misc-devices/mei/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# List of programs to build -hostprogs-y := mei-amt-version -HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include -# Tell kbuild to always build the programs -always := $(hostprogs-y) diff --git a/Documentation/misc-devices/mei/TODO b/Documentation/misc-devices/mei/TODO deleted file mode 100644 index 6b3625d3058c..000000000000 --- a/Documentation/misc-devices/mei/TODO +++ /dev/null @@ -1,2 +0,0 @@ -TODO: - - Cleanup and split the timer function diff --git a/Documentation/misc-devices/mei/mei-amt-version.c b/Documentation/misc-devices/mei/mei-amt-version.c deleted file mode 100644 index 57d0d871dcf7..000000000000 --- a/Documentation/misc-devices/mei/mei-amt-version.c +++ /dev/null @@ -1,479 +0,0 @@ -/****************************************************************************** - * Intel Management Engine Interface (Intel MEI) Linux driver - * Intel MEI Interface Header - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2012 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License 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 for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Corporation. - * linux-mei@linux.intel.com - * http://www.intel.com - * - * BSD LICENSE - * - * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <sys/ioctl.h> -#include <unistd.h> -#include <errno.h> -#include <stdint.h> -#include <stdbool.h> -#include <bits/wordsize.h> -#include <linux/mei.h> - -/***************************************************************************** - * Intel Management Engine Interface - *****************************************************************************/ - -#define mei_msg(_me, fmt, ARGS...) do { \ - if (_me->verbose) \ - fprintf(stderr, fmt, ##ARGS); \ -} while (0) - -#define mei_err(_me, fmt, ARGS...) do { \ - fprintf(stderr, "Error: " fmt, ##ARGS); \ -} while (0) - -struct mei { - uuid_le guid; - bool initialized; - bool verbose; - unsigned int buf_size; - unsigned char prot_ver; - int fd; -}; - -static void mei_deinit(struct mei *cl) -{ - if (cl->fd != -1) - close(cl->fd); - cl->fd = -1; - cl->buf_size = 0; - cl->prot_ver = 0; - cl->initialized = false; -} - -static bool mei_init(struct mei *me, const uuid_le *guid, - unsigned char req_protocol_version, bool verbose) -{ - int result; - struct mei_client *cl; - struct mei_connect_client_data data; - - me->verbose = verbose; - - me->fd = open("/dev/mei", O_RDWR); - if (me->fd == -1) { - mei_err(me, "Cannot establish a handle to the Intel MEI driver\n"); - goto err; - } - memcpy(&me->guid, guid, sizeof(*guid)); - memset(&data, 0, sizeof(data)); - me->initialized = true; - - memcpy(&data.in_client_uuid, &me->guid, sizeof(me->guid)); - result = ioctl(me->fd, IOCTL_MEI_CONNECT_CLIENT, &data); - if (result) { - mei_err(me, "IOCTL_MEI_CONNECT_CLIENT receive message. err=%d\n", result); - goto err; - } - cl = &data.out_client_properties; - mei_msg(me, "max_message_length %d\n", cl->max_msg_length); - mei_msg(me, "protocol_version %d\n", cl->protocol_version); - - if ((req_protocol_version > 0) && - (cl->protocol_version != req_protocol_version)) { - mei_err(me, "Intel MEI protocol version not supported\n"); - goto err; - } - - me->buf_size = cl->max_msg_length; - me->prot_ver = cl->protocol_version; - - return true; -err: - mei_deinit(me); - return false; -} - -static ssize_t mei_recv_msg(struct mei *me, unsigned char *buffer, - ssize_t len, unsigned long timeout) -{ - ssize_t rc; - - mei_msg(me, "call read length = %zd\n", len); - - rc = read(me->fd, buffer, len); - if (rc < 0) { - mei_err(me, "read failed with status %zd %s\n", - rc, strerror(errno)); - mei_deinit(me); - } else { - mei_msg(me, "read succeeded with result %zd\n", rc); - } - return rc; -} - -static ssize_t mei_send_msg(struct mei *me, const unsigned char *buffer, - ssize_t len, unsigned long timeout) -{ - struct timeval tv; - ssize_t written; - ssize_t rc; - fd_set set; - - tv.tv_sec = timeout / 1000; - tv.tv_usec = (timeout % 1000) * 1000000; - - mei_msg(me, "call write length = %zd\n", len); - - written = write(me->fd, buffer, len); - if (written < 0) { - rc = -errno; - mei_err(me, "write failed with status %zd %s\n", - written, strerror(errno)); - goto out; - } - - FD_ZERO(&set); - FD_SET(me->fd, &set); - rc = select(me->fd + 1 , &set, NULL, NULL, &tv); - if (rc > 0 && FD_ISSET(me->fd, &set)) { - mei_msg(me, "write success\n"); - } else if (rc == 0) { - mei_err(me, "write failed on timeout with status\n"); - goto out; - } else { /* rc < 0 */ - mei_err(me, "write failed on select with status %zd\n", rc); - goto out; - } - - rc = written; -out: - if (rc < 0) - mei_deinit(me); - - return rc; -} - -/*************************************************************************** - * Intel Advanced Management Technology ME Client - ***************************************************************************/ - -#define AMT_MAJOR_VERSION 1 -#define AMT_MINOR_VERSION 1 - -#define AMT_STATUS_SUCCESS 0x0 -#define AMT_STATUS_INTERNAL_ERROR 0x1 -#define AMT_STATUS_NOT_READY 0x2 -#define AMT_STATUS_INVALID_AMT_MODE 0x3 -#define AMT_STATUS_INVALID_MESSAGE_LENGTH 0x4 - -#define AMT_STATUS_HOST_IF_EMPTY_RESPONSE 0x4000 -#define AMT_STATUS_SDK_RESOURCES 0x1004 - - -#define AMT_BIOS_VERSION_LEN 65 -#define AMT_VERSIONS_NUMBER 50 -#define AMT_UNICODE_STRING_LEN 20 - -struct amt_unicode_string { - uint16_t length; - char string[AMT_UNICODE_STRING_LEN]; -} __attribute__((packed)); - -struct amt_version_type { - struct amt_unicode_string description; - struct amt_unicode_string version; -} __attribute__((packed)); - -struct amt_version { - uint8_t major; - uint8_t minor; -} __attribute__((packed)); - -struct amt_code_versions { - uint8_t bios[AMT_BIOS_VERSION_LEN]; - uint32_t count; - struct amt_version_type versions[AMT_VERSIONS_NUMBER]; -} __attribute__((packed)); - -/*************************************************************************** - * Intel Advanced Management Technology Host Interface - ***************************************************************************/ - -struct amt_host_if_msg_header { - struct amt_version version; - uint16_t _reserved; - uint32_t command; - uint32_t length; -} __attribute__((packed)); - -struct amt_host_if_resp_header { - struct amt_host_if_msg_header header; - uint32_t status; - unsigned char data[0]; -} __attribute__((packed)); - -const uuid_le MEI_IAMTHIF = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d, \ - 0xac, 0xa8, 0x46, 0xe0, 0xff, 0x65, 0x81, 0x4c); - -#define AMT_HOST_IF_CODE_VERSIONS_REQUEST 0x0400001A -#define AMT_HOST_IF_CODE_VERSIONS_RESPONSE 0x0480001A - -const struct amt_host_if_msg_header CODE_VERSION_REQ = { - .version = {AMT_MAJOR_VERSION, AMT_MINOR_VERSION}, - ._reserved = 0, - .command = AMT_HOST_IF_CODE_VERSIONS_REQUEST, - .length = 0 -}; - - -struct amt_host_if { - struct mei mei_cl; - unsigned long send_timeout; - bool initialized; -}; - - -static bool amt_host_if_init(struct amt_host_if *acmd, - unsigned long send_timeout, bool verbose) -{ - acmd->send_timeout = (send_timeout) ? send_timeout : 20000; - acmd->initialized = mei_init(&acmd->mei_cl, &MEI_IAMTHIF, 0, verbose); - return acmd->initialized; -} - -static void amt_host_if_deinit(struct amt_host_if *acmd) -{ - mei_deinit(&acmd->mei_cl); - acmd->initialized = false; -} - -static uint32_t amt_verify_code_versions(const struct amt_host_if_resp_header *resp) -{ - uint32_t status = AMT_STATUS_SUCCESS; - struct amt_code_versions *code_ver; - size_t code_ver_len; - uint32_t ver_type_cnt; - uint32_t len; - uint32_t i; - - code_ver = (struct amt_code_versions *)resp->data; - /* length - sizeof(status) */ - code_ver_len = resp->header.length - sizeof(uint32_t); - ver_type_cnt = code_ver_len - - sizeof(code_ver->bios) - - sizeof(code_ver->count); - if (code_ver->count != ver_type_cnt / sizeof(struct amt_version_type)) { - status = AMT_STATUS_INTERNAL_ERROR; - goto out; - } - - for (i = 0; i < code_ver->count; i++) { - len = code_ver->versions[i].description.length; - - if (len > AMT_UNICODE_STRING_LEN) { - status = AMT_STATUS_INTERNAL_ERROR; - goto out; - } - - len = code_ver->versions[i].version.length; - if (code_ver->versions[i].version.string[len] != '\0' || - len != strlen(code_ver->versions[i].version.string)) { - status = AMT_STATUS_INTERNAL_ERROR; - goto out; - } - } -out: - return status; -} - -static uint32_t amt_verify_response_header(uint32_t command, - const struct amt_host_if_msg_header *resp_hdr, - uint32_t response_size) -{ - if (response_size < sizeof(struct amt_host_if_resp_header)) { - return AMT_STATUS_INTERNAL_ERROR; - } else if (response_size != (resp_hdr->length + - sizeof(struct amt_host_if_msg_header))) { - return AMT_STATUS_INTERNAL_ERROR; - } else if (resp_hdr->command != command) { - return AMT_STATUS_INTERNAL_ERROR; - } else if (resp_hdr->_reserved != 0) { - return AMT_STATUS_INTERNAL_ERROR; - } else if (resp_hdr->version.major != AMT_MAJOR_VERSION || - resp_hdr->version.minor < AMT_MINOR_VERSION) { - return AMT_STATUS_INTERNAL_ERROR; - } - return AMT_STATUS_SUCCESS; -} - -static uint32_t amt_host_if_call(struct amt_host_if *acmd, - const unsigned char *command, ssize_t command_sz, - uint8_t **read_buf, uint32_t rcmd, - unsigned int expected_sz) -{ - uint32_t in_buf_sz; - uint32_t out_buf_sz; - ssize_t written; - uint32_t status; - struct amt_host_if_resp_header *msg_hdr; - - in_buf_sz = acmd->mei_cl.buf_size; - *read_buf = (uint8_t *)malloc(sizeof(uint8_t) * in_buf_sz); - if (*read_buf == NULL) - return AMT_STATUS_SDK_RESOURCES; - memset(*read_buf, 0, in_buf_sz); - msg_hdr = (struct amt_host_if_resp_header *)*read_buf; - - written = mei_send_msg(&acmd->mei_cl, - command, command_sz, acmd->send_timeout); - if (written != command_sz) - return AMT_STATUS_INTERNAL_ERROR; - - out_buf_sz = mei_recv_msg(&acmd->mei_cl, *read_buf, in_buf_sz, 2000); - if (out_buf_sz <= 0) - return AMT_STATUS_HOST_IF_EMPTY_RESPONSE; - - status = msg_hdr->status; - if (status != AMT_STATUS_SUCCESS) - return status; - - status = amt_verify_response_header(rcmd, - &msg_hdr->header, out_buf_sz); - if (status != AMT_STATUS_SUCCESS) - return status; - - if (expected_sz && expected_sz != out_buf_sz) - return AMT_STATUS_INTERNAL_ERROR; - - return AMT_STATUS_SUCCESS; -} - - -static uint32_t amt_get_code_versions(struct amt_host_if *cmd, - struct amt_code_versions *versions) -{ - struct amt_host_if_resp_header *response = NULL; - uint32_t status; - - status = amt_host_if_call(cmd, - (const unsigned char *)&CODE_VERSION_REQ, - sizeof(CODE_VERSION_REQ), - (uint8_t **)&response, - AMT_HOST_IF_CODE_VERSIONS_RESPONSE, 0); - - if (status != AMT_STATUS_SUCCESS) - goto out; - - status = amt_verify_code_versions(response); - if (status != AMT_STATUS_SUCCESS) - goto out; - - memcpy(versions, response->data, sizeof(struct amt_code_versions)); -out: - if (response != NULL) - free(response); - - return status; -} - -/************************** end of amt_host_if_command ***********************/ -int main(int argc, char **argv) -{ - struct amt_code_versions ver; - struct amt_host_if acmd; - unsigned int i; - uint32_t status; - int ret; - bool verbose; - - verbose = (argc > 1 && strcmp(argv[1], "-v") == 0); - - if (!amt_host_if_init(&acmd, 5000, verbose)) { - ret = 1; - goto out; - } - - status = amt_get_code_versions(&acmd, &ver); - - amt_host_if_deinit(&acmd); - - switch (status) { - case AMT_STATUS_HOST_IF_EMPTY_RESPONSE: - printf("Intel AMT: DISABLED\n"); - ret = 0; - break; - case AMT_STATUS_SUCCESS: - printf("Intel AMT: ENABLED\n"); - for (i = 0; i < ver.count; i++) { - printf("%s:\t%s\n", ver.versions[i].description.string, - ver.versions[i].version.string); - } - ret = 0; - break; - default: - printf("An error has occurred\n"); - ret = 1; - break; - } - -out: - return ret; -} diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX index a7697783ac4c..c6beb5f1637f 100644 --- a/Documentation/networking/00-INDEX +++ b/Documentation/networking/00-INDEX @@ -10,8 +10,6 @@ LICENSE.qlge - GPLv2 for QLogic Linux qlge NIC Driver LICENSE.qlcnic - GPLv2 for QLogic Linux qlcnic NIC Driver -Makefile - - Makefile for docsrc. PLIP.txt - PLIP: The Parallel Line Internet Protocol device driver README.ipw2100 diff --git a/Documentation/networking/Makefile b/Documentation/networking/Makefile deleted file mode 100644 index 4c5d7c485439..000000000000 --- a/Documentation/networking/Makefile +++ /dev/null @@ -1 +0,0 @@ -subdir-y := timestamping diff --git a/Documentation/networking/netdev-FAQ.txt b/Documentation/networking/netdev-FAQ.txt index 0fe1c6e0dbcd..a20b2fae942b 100644 --- a/Documentation/networking/netdev-FAQ.txt +++ b/Documentation/networking/netdev-FAQ.txt @@ -29,8 +29,8 @@ A: There are always two trees (git repositories) in play. Both are driven Linus, and net-next is where the new code goes for the future release. You can find the trees here: - http://git.kernel.org/?p=linux/kernel/git/davem/net.git - http://git.kernel.org/?p=linux/kernel/git/davem/net-next.git + https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git + https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git Q: How often do changes from these trees make it to the mainline Linus tree? @@ -76,7 +76,7 @@ Q: So where are we now in this cycle? A: Load the mainline (Linus) page here: - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git + https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and note the top of the "tags" section. If it is rc1, it is early in the dev cycle. If it was tagged rc7 a week ago, then a release @@ -123,7 +123,7 @@ A: Normally Greg Kroah-Hartman collects stable commits himself, but It contains the patches which Dave has selected, but not yet handed off to Greg. If Greg already has the patch, then it will be here: - http://git.kernel.org/cgit/linux/kernel/git/stable/stable-queue.git + https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git A quick way to find whether the patch is in this stable-queue is to simply clone the repo, and then git grep the mainline commit ID, e.g. diff --git a/Documentation/networking/nf_conntrack-sysctl.txt b/Documentation/networking/nf_conntrack-sysctl.txt index 4fb51d32fccc..399e4e866a9c 100644 --- a/Documentation/networking/nf_conntrack-sysctl.txt +++ b/Documentation/networking/nf_conntrack-sysctl.txt @@ -33,24 +33,6 @@ nf_conntrack_events - BOOLEAN If this option is enabled, the connection tracking code will provide userspace with connection tracking events via ctnetlink. -nf_conntrack_events_retry_timeout - INTEGER (seconds) - default 15 - - This option is only relevant when "reliable connection tracking - events" are used. Normally, ctnetlink is "lossy", that is, - events are normally dropped when userspace listeners can't keep up. - - Userspace can request "reliable event mode". When this mode is - active, the conntrack will only be destroyed after the event was - delivered. If event delivery fails, the kernel periodically - re-tries to send the event to userspace. - - This is the maximum interval the kernel should use when re-trying - to deliver the destroy event. - - A higher number means there will be fewer delivery retries and it - will take longer for a backlog to be processed. - nf_conntrack_expect_max - INTEGER Maximum size of expectation table. Default value is nf_conntrack_buckets / 256. Minimum is 1. diff --git a/Documentation/networking/timestamping/.gitignore b/Documentation/networking/timestamping/.gitignore deleted file mode 100644 index 9e69e982fb38..000000000000 --- a/Documentation/networking/timestamping/.gitignore +++ /dev/null @@ -1,3 +0,0 @@ -timestamping -txtimestamp -hwtstamp_config diff --git a/Documentation/networking/timestamping/Makefile b/Documentation/networking/timestamping/Makefile deleted file mode 100644 index 8c20dfaa4d6e..000000000000 --- a/Documentation/networking/timestamping/Makefile +++ /dev/null @@ -1,14 +0,0 @@ -# To compile, from the source root -# -# make headers_install -# make M=documentation - -# List of programs to build -hostprogs-y := hwtstamp_config timestamping txtimestamp - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include -HOSTCFLAGS_txtimestamp.o += -I$(objtree)/usr/include -HOSTCFLAGS_hwtstamp_config.o += -I$(objtree)/usr/include diff --git a/Documentation/networking/timestamping/hwtstamp_config.c b/Documentation/networking/timestamping/hwtstamp_config.c deleted file mode 100644 index e8b685a7f15f..000000000000 --- a/Documentation/networking/timestamping/hwtstamp_config.c +++ /dev/null @@ -1,134 +0,0 @@ -/* Test program for SIOC{G,S}HWTSTAMP - * Copyright 2013 Solarflare Communications - * Author: Ben Hutchings - */ - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <sys/socket.h> -#include <sys/ioctl.h> - -#include <linux/if.h> -#include <linux/net_tstamp.h> -#include <linux/sockios.h> - -static int -lookup_value(const char **names, int size, const char *name) -{ - int value; - - for (value = 0; value < size; value++) - if (names[value] && strcasecmp(names[value], name) == 0) - return value; - - return -1; -} - -static const char * -lookup_name(const char **names, int size, int value) -{ - return (value >= 0 && value < size) ? names[value] : NULL; -} - -static void list_names(FILE *f, const char **names, int size) -{ - int value; - - for (value = 0; value < size; value++) - if (names[value]) - fprintf(f, " %s\n", names[value]); -} - -static const char *tx_types[] = { -#define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name - TX_TYPE(OFF), - TX_TYPE(ON), - TX_TYPE(ONESTEP_SYNC) -#undef TX_TYPE -}; -#define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0]))) - -static const char *rx_filters[] = { -#define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name - RX_FILTER(NONE), - RX_FILTER(ALL), - RX_FILTER(SOME), - RX_FILTER(PTP_V1_L4_EVENT), - RX_FILTER(PTP_V1_L4_SYNC), - RX_FILTER(PTP_V1_L4_DELAY_REQ), - RX_FILTER(PTP_V2_L4_EVENT), - RX_FILTER(PTP_V2_L4_SYNC), - RX_FILTER(PTP_V2_L4_DELAY_REQ), - RX_FILTER(PTP_V2_L2_EVENT), - RX_FILTER(PTP_V2_L2_SYNC), - RX_FILTER(PTP_V2_L2_DELAY_REQ), - RX_FILTER(PTP_V2_EVENT), - RX_FILTER(PTP_V2_SYNC), - RX_FILTER(PTP_V2_DELAY_REQ), -#undef RX_FILTER -}; -#define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0]))) - -static void usage(void) -{ - fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n" - "tx_type is any of (case-insensitive):\n", - stderr); - list_names(stderr, tx_types, N_TX_TYPES); - fputs("rx_filter is any of (case-insensitive):\n", stderr); - list_names(stderr, rx_filters, N_RX_FILTERS); -} - -int main(int argc, char **argv) -{ - struct ifreq ifr; - struct hwtstamp_config config; - const char *name; - int sock; - - if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) { - usage(); - return 2; - } - - if (argc == 4) { - config.flags = 0; - config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]); - config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]); - if (config.tx_type < 0 || config.rx_filter < 0) { - usage(); - return 2; - } - } - - sock = socket(AF_INET, SOCK_DGRAM, 0); - if (sock < 0) { - perror("socket"); - return 1; - } - - strcpy(ifr.ifr_name, argv[1]); - ifr.ifr_data = (caddr_t)&config; - - if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) { - perror("ioctl"); - return 1; - } - - printf("flags = %#x\n", config.flags); - name = lookup_name(tx_types, N_TX_TYPES, config.tx_type); - if (name) - printf("tx_type = %s\n", name); - else - printf("tx_type = %d\n", config.tx_type); - name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter); - if (name) - printf("rx_filter = %s\n", name); - else - printf("rx_filter = %d\n", config.rx_filter); - - return 0; -} diff --git a/Documentation/networking/timestamping/timestamping.c b/Documentation/networking/timestamping/timestamping.c deleted file mode 100644 index 5cdfd743447b..000000000000 --- a/Documentation/networking/timestamping/timestamping.c +++ /dev/null @@ -1,528 +0,0 @@ -/* - * This program demonstrates how the various time stamping features in - * the Linux kernel work. It emulates the behavior of a PTP - * implementation in stand-alone master mode by sending PTPv1 Sync - * multicasts once every second. It looks for similar packets, but - * beyond that doesn't actually implement PTP. - * - * Outgoing packets are time stamped with SO_TIMESTAMPING with or - * without hardware support. - * - * Incoming packets are time stamped with SO_TIMESTAMPING with or - * without hardware support, SIOCGSTAMP[NS] (per-socket time stamp) and - * SO_TIMESTAMP[NS]. - * - * Copyright (C) 2009 Intel Corporation. - * Author: Patrick Ohly <patrick.ohly@intel.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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 for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#include <string.h> - -#include <sys/time.h> -#include <sys/socket.h> -#include <sys/select.h> -#include <sys/ioctl.h> -#include <arpa/inet.h> -#include <net/if.h> - -#include <asm/types.h> -#include <linux/net_tstamp.h> -#include <linux/errqueue.h> - -#ifndef SO_TIMESTAMPING -# define SO_TIMESTAMPING 37 -# define SCM_TIMESTAMPING SO_TIMESTAMPING -#endif - -#ifndef SO_TIMESTAMPNS -# define SO_TIMESTAMPNS 35 -#endif - -#ifndef SIOCGSTAMPNS -# define SIOCGSTAMPNS 0x8907 -#endif - -#ifndef SIOCSHWTSTAMP -# define SIOCSHWTSTAMP 0x89b0 -#endif - -static void usage(const char *error) -{ - if (error) - printf("invalid option: %s\n", error); - printf("timestamping interface option*\n\n" - "Options:\n" - " IP_MULTICAST_LOOP - looping outgoing multicasts\n" - " SO_TIMESTAMP - normal software time stamping, ms resolution\n" - " SO_TIMESTAMPNS - more accurate software time stamping\n" - " SOF_TIMESTAMPING_TX_HARDWARE - hardware time stamping of outgoing packets\n" - " SOF_TIMESTAMPING_TX_SOFTWARE - software fallback for outgoing packets\n" - " SOF_TIMESTAMPING_RX_HARDWARE - hardware time stamping of incoming packets\n" - " SOF_TIMESTAMPING_RX_SOFTWARE - software fallback for incoming packets\n" - " SOF_TIMESTAMPING_SOFTWARE - request reporting of software time stamps\n" - " SOF_TIMESTAMPING_RAW_HARDWARE - request reporting of raw HW time stamps\n" - " SIOCGSTAMP - check last socket time stamp\n" - " SIOCGSTAMPNS - more accurate socket time stamp\n"); - exit(1); -} - -static void bail(const char *error) -{ - printf("%s: %s\n", error, strerror(errno)); - exit(1); -} - -static const unsigned char sync[] = { - 0x00, 0x01, 0x00, 0x01, - 0x5f, 0x44, 0x46, 0x4c, - 0x54, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x01, 0x01, - - /* fake uuid */ - 0x00, 0x01, - 0x02, 0x03, 0x04, 0x05, - - 0x00, 0x01, 0x00, 0x37, - 0x00, 0x00, 0x00, 0x08, - 0x00, 0x00, 0x00, 0x00, - 0x49, 0x05, 0xcd, 0x01, - 0x29, 0xb1, 0x8d, 0xb0, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x01, - - /* fake uuid */ - 0x00, 0x01, - 0x02, 0x03, 0x04, 0x05, - - 0x00, 0x00, 0x00, 0x37, - 0x00, 0x00, 0x00, 0x04, - 0x44, 0x46, 0x4c, 0x54, - 0x00, 0x00, 0xf0, 0x60, - 0x00, 0x01, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x01, - 0x00, 0x00, 0xf0, 0x60, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x04, - 0x44, 0x46, 0x4c, 0x54, - 0x00, 0x01, - - /* fake uuid */ - 0x00, 0x01, - 0x02, 0x03, 0x04, 0x05, - - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00 -}; - -static void sendpacket(int sock, struct sockaddr *addr, socklen_t addr_len) -{ - struct timeval now; - int res; - - res = sendto(sock, sync, sizeof(sync), 0, - addr, addr_len); - gettimeofday(&now, 0); - if (res < 0) - printf("%s: %s\n", "send", strerror(errno)); - else - printf("%ld.%06ld: sent %d bytes\n", - (long)now.tv_sec, (long)now.tv_usec, - res); -} - -static void printpacket(struct msghdr *msg, int res, - char *data, - int sock, int recvmsg_flags, - int siocgstamp, int siocgstampns) -{ - struct sockaddr_in *from_addr = (struct sockaddr_in *)msg->msg_name; - struct cmsghdr *cmsg; - struct timeval tv; - struct timespec ts; - struct timeval now; - - gettimeofday(&now, 0); - - printf("%ld.%06ld: received %s data, %d bytes from %s, %zu bytes control messages\n", - (long)now.tv_sec, (long)now.tv_usec, - (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular", - res, - inet_ntoa(from_addr->sin_addr), - msg->msg_controllen); - for (cmsg = CMSG_FIRSTHDR(msg); - cmsg; - cmsg = CMSG_NXTHDR(msg, cmsg)) { - printf(" cmsg len %zu: ", cmsg->cmsg_len); - switch (cmsg->cmsg_level) { - case SOL_SOCKET: - printf("SOL_SOCKET "); - switch (cmsg->cmsg_type) { - case SO_TIMESTAMP: { - struct timeval *stamp = - (struct timeval *)CMSG_DATA(cmsg); - printf("SO_TIMESTAMP %ld.%06ld", - (long)stamp->tv_sec, - (long)stamp->tv_usec); - break; - } - case SO_TIMESTAMPNS: { - struct timespec *stamp = - (struct timespec *)CMSG_DATA(cmsg); - printf("SO_TIMESTAMPNS %ld.%09ld", - (long)stamp->tv_sec, - (long)stamp->tv_nsec); - break; - } - case SO_TIMESTAMPING: { - struct timespec *stamp = - (struct timespec *)CMSG_DATA(cmsg); - printf("SO_TIMESTAMPING "); - printf("SW %ld.%09ld ", - (long)stamp->tv_sec, - (long)stamp->tv_nsec); - stamp++; - /* skip deprecated HW transformed */ - stamp++; - printf("HW raw %ld.%09ld", - (long)stamp->tv_sec, - (long)stamp->tv_nsec); - break; - } - default: - printf("type %d", cmsg->cmsg_type); - break; - } - break; - case IPPROTO_IP: - printf("IPPROTO_IP "); - switch (cmsg->cmsg_type) { - case IP_RECVERR: { - struct sock_extended_err *err = - (struct sock_extended_err *)CMSG_DATA(cmsg); - printf("IP_RECVERR ee_errno '%s' ee_origin %d => %s", - strerror(err->ee_errno), - err->ee_origin, -#ifdef SO_EE_ORIGIN_TIMESTAMPING - err->ee_origin == SO_EE_ORIGIN_TIMESTAMPING ? - "bounced packet" : "unexpected origin" -#else - "probably SO_EE_ORIGIN_TIMESTAMPING" -#endif - ); - if (res < sizeof(sync)) - printf(" => truncated data?!"); - else if (!memcmp(sync, data + res - sizeof(sync), - sizeof(sync))) - printf(" => GOT OUR DATA BACK (HURRAY!)"); - break; - } - case IP_PKTINFO: { - struct in_pktinfo *pktinfo = - (struct in_pktinfo *)CMSG_DATA(cmsg); - printf("IP_PKTINFO interface index %u", - pktinfo->ipi_ifindex); - break; - } - default: - printf("type %d", cmsg->cmsg_type); - break; - } - break; - default: - printf("level %d type %d", - cmsg->cmsg_level, - cmsg->cmsg_type); - break; - } - printf("\n"); - } - - if (siocgstamp) { - if (ioctl(sock, SIOCGSTAMP, &tv)) - printf(" %s: %s\n", "SIOCGSTAMP", strerror(errno)); - else - printf("SIOCGSTAMP %ld.%06ld\n", - (long)tv.tv_sec, - (long)tv.tv_usec); - } - if (siocgstampns) { - if (ioctl(sock, SIOCGSTAMPNS, &ts)) - printf(" %s: %s\n", "SIOCGSTAMPNS", strerror(errno)); - else - printf("SIOCGSTAMPNS %ld.%09ld\n", - (long)ts.tv_sec, - (long)ts.tv_nsec); - } -} - -static void recvpacket(int sock, int recvmsg_flags, - int siocgstamp, int siocgstampns) -{ - char data[256]; - struct msghdr msg; - struct iovec entry; - struct sockaddr_in from_addr; - struct { - struct cmsghdr cm; - char control[512]; - } control; - int res; - - memset(&msg, 0, sizeof(msg)); - msg.msg_iov = &entry; - msg.msg_iovlen = 1; - entry.iov_base = data; - entry.iov_len = sizeof(data); - msg.msg_name = (caddr_t)&from_addr; - msg.msg_namelen = sizeof(from_addr); - msg.msg_control = &control; - msg.msg_controllen = sizeof(control); - - res = recvmsg(sock, &msg, recvmsg_flags|MSG_DONTWAIT); - if (res < 0) { - printf("%s %s: %s\n", - "recvmsg", - (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular", - strerror(errno)); - } else { - printpacket(&msg, res, data, - sock, recvmsg_flags, - siocgstamp, siocgstampns); - } -} - -int main(int argc, char **argv) -{ - int so_timestamping_flags = 0; - int so_timestamp = 0; - int so_timestampns = 0; - int siocgstamp = 0; - int siocgstampns = 0; - int ip_multicast_loop = 0; - char *interface; - int i; - int enabled = 1; - int sock; - struct ifreq device; - struct ifreq hwtstamp; - struct hwtstamp_config hwconfig, hwconfig_requested; - struct sockaddr_in addr; - struct ip_mreq imr; - struct in_addr iaddr; - int val; - socklen_t len; - struct timeval next; - - if (argc < 2) - usage(0); - interface = argv[1]; - - for (i = 2; i < argc; i++) { - if (!strcasecmp(argv[i], "SO_TIMESTAMP")) - so_timestamp = 1; - else if (!strcasecmp(argv[i], "SO_TIMESTAMPNS")) - so_timestampns = 1; - else if (!strcasecmp(argv[i], "SIOCGSTAMP")) - siocgstamp = 1; - else if (!strcasecmp(argv[i], "SIOCGSTAMPNS")) - siocgstampns = 1; - else if (!strcasecmp(argv[i], "IP_MULTICAST_LOOP")) - ip_multicast_loop = 1; - else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_HARDWARE")) - so_timestamping_flags |= SOF_TIMESTAMPING_TX_HARDWARE; - else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_SOFTWARE")) - so_timestamping_flags |= SOF_TIMESTAMPING_TX_SOFTWARE; - else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_HARDWARE")) - so_timestamping_flags |= SOF_TIMESTAMPING_RX_HARDWARE; - else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_SOFTWARE")) - so_timestamping_flags |= SOF_TIMESTAMPING_RX_SOFTWARE; - else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SOFTWARE")) - so_timestamping_flags |= SOF_TIMESTAMPING_SOFTWARE; - else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RAW_HARDWARE")) - so_timestamping_flags |= SOF_TIMESTAMPING_RAW_HARDWARE; - else - usage(argv[i]); - } - - sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP); - if (sock < 0) - bail("socket"); - - memset(&device, 0, sizeof(device)); - strncpy(device.ifr_name, interface, sizeof(device.ifr_name)); - if (ioctl(sock, SIOCGIFADDR, &device) < 0) - bail("getting interface IP address"); - - memset(&hwtstamp, 0, sizeof(hwtstamp)); - strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name)); - hwtstamp.ifr_data = (void *)&hwconfig; - memset(&hwconfig, 0, sizeof(hwconfig)); - hwconfig.tx_type = - (so_timestamping_flags & SOF_TIMESTAMPING_TX_HARDWARE) ? - HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; - hwconfig.rx_filter = - (so_timestamping_flags & SOF_TIMESTAMPING_RX_HARDWARE) ? - HWTSTAMP_FILTER_PTP_V1_L4_SYNC : HWTSTAMP_FILTER_NONE; - hwconfig_requested = hwconfig; - if (ioctl(sock, SIOCSHWTSTAMP, &hwtstamp) < 0) { - if ((errno == EINVAL || errno == ENOTSUP) && - hwconfig_requested.tx_type == HWTSTAMP_TX_OFF && - hwconfig_requested.rx_filter == HWTSTAMP_FILTER_NONE) - printf("SIOCSHWTSTAMP: disabling hardware time stamping not possible\n"); - else - bail("SIOCSHWTSTAMP"); - } - printf("SIOCSHWTSTAMP: tx_type %d requested, got %d; rx_filter %d requested, got %d\n", - hwconfig_requested.tx_type, hwconfig.tx_type, - hwconfig_requested.rx_filter, hwconfig.rx_filter); - - /* bind to PTP port */ - addr.sin_family = AF_INET; - addr.sin_addr.s_addr = htonl(INADDR_ANY); - addr.sin_port = htons(319 /* PTP event port */); - if (bind(sock, - (struct sockaddr *)&addr, - sizeof(struct sockaddr_in)) < 0) - bail("bind"); - - /* set multicast group for outgoing packets */ - inet_aton("224.0.1.130", &iaddr); /* alternate PTP domain 1 */ - addr.sin_addr = iaddr; - imr.imr_multiaddr.s_addr = iaddr.s_addr; - imr.imr_interface.s_addr = - ((struct sockaddr_in *)&device.ifr_addr)->sin_addr.s_addr; - if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, - &imr.imr_interface.s_addr, sizeof(struct in_addr)) < 0) - bail("set multicast"); - - /* join multicast group, loop our own packet */ - if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, - &imr, sizeof(struct ip_mreq)) < 0) - bail("join multicast group"); - - if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP, - &ip_multicast_loop, sizeof(enabled)) < 0) { - bail("loop multicast"); - } - - /* set socket options for time stamping */ - if (so_timestamp && - setsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, - &enabled, sizeof(enabled)) < 0) - bail("setsockopt SO_TIMESTAMP"); - - if (so_timestampns && - setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, - &enabled, sizeof(enabled)) < 0) - bail("setsockopt SO_TIMESTAMPNS"); - - if (so_timestamping_flags && - setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, - &so_timestamping_flags, - sizeof(so_timestamping_flags)) < 0) - bail("setsockopt SO_TIMESTAMPING"); - - /* request IP_PKTINFO for debugging purposes */ - if (setsockopt(sock, SOL_IP, IP_PKTINFO, - &enabled, sizeof(enabled)) < 0) - printf("%s: %s\n", "setsockopt IP_PKTINFO", strerror(errno)); - - /* verify socket options */ - len = sizeof(val); - if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, &val, &len) < 0) - printf("%s: %s\n", "getsockopt SO_TIMESTAMP", strerror(errno)); - else - printf("SO_TIMESTAMP %d\n", val); - - if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, &val, &len) < 0) - printf("%s: %s\n", "getsockopt SO_TIMESTAMPNS", - strerror(errno)); - else - printf("SO_TIMESTAMPNS %d\n", val); - - if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &val, &len) < 0) { - printf("%s: %s\n", "getsockopt SO_TIMESTAMPING", - strerror(errno)); - } else { - printf("SO_TIMESTAMPING %d\n", val); - if (val != so_timestamping_flags) - printf(" not the expected value %d\n", - so_timestamping_flags); - } - - /* send packets forever every five seconds */ - gettimeofday(&next, 0); - next.tv_sec = (next.tv_sec + 1) / 5 * 5; - next.tv_usec = 0; - while (1) { - struct timeval now; - struct timeval delta; - long delta_us; - int res; - fd_set readfs, errorfs; - - gettimeofday(&now, 0); - delta_us = (long)(next.tv_sec - now.tv_sec) * 1000000 + - (long)(next.tv_usec - now.tv_usec); - if (delta_us > 0) { - /* continue waiting for timeout or data */ - delta.tv_sec = delta_us / 1000000; - delta.tv_usec = delta_us % 1000000; - - FD_ZERO(&readfs); - FD_ZERO(&errorfs); - FD_SET(sock, &readfs); - FD_SET(sock, &errorfs); - printf("%ld.%06ld: select %ldus\n", - (long)now.tv_sec, (long)now.tv_usec, - delta_us); - res = select(sock + 1, &readfs, 0, &errorfs, &delta); - gettimeofday(&now, 0); - printf("%ld.%06ld: select returned: %d, %s\n", - (long)now.tv_sec, (long)now.tv_usec, - res, - res < 0 ? strerror(errno) : "success"); - if (res > 0) { - if (FD_ISSET(sock, &readfs)) - printf("ready for reading\n"); - if (FD_ISSET(sock, &errorfs)) - printf("has error\n"); - recvpacket(sock, 0, - siocgstamp, - siocgstampns); - recvpacket(sock, MSG_ERRQUEUE, - siocgstamp, - siocgstampns); - } - } else { - /* write one packet */ - sendpacket(sock, - (struct sockaddr *)&addr, - sizeof(addr)); - next.tv_sec += 5; - continue; - } - } - - return 0; -} diff --git a/Documentation/networking/timestamping/txtimestamp.c b/Documentation/networking/timestamping/txtimestamp.c deleted file mode 100644 index 5df07047ca86..000000000000 --- a/Documentation/networking/timestamping/txtimestamp.c +++ /dev/null @@ -1,549 +0,0 @@ -/* - * Copyright 2014 Google Inc. - * Author: willemb@google.com (Willem de Bruijn) - * - * Test software tx timestamping, including - * - * - SCHED, SND and ACK timestamps - * - RAW, UDP and TCP - * - IPv4 and IPv6 - * - various packet sizes (to test GSO and TSO) - * - * Consult the command line arguments for help on running - * the various testcases. - * - * This test requires a dummy TCP server. - * A simple `nc6 [-u] -l -p $DESTPORT` will do - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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 for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#define _GNU_SOURCE - -#include <arpa/inet.h> -#include <asm/types.h> -#include <error.h> -#include <errno.h> -#include <inttypes.h> -#include <linux/errqueue.h> -#include <linux/if_ether.h> -#include <linux/net_tstamp.h> -#include <netdb.h> -#include <net/if.h> -#include <netinet/in.h> -#include <netinet/ip.h> -#include <netinet/udp.h> -#include <netinet/tcp.h> -#include <netpacket/packet.h> -#include <poll.h> -#include <stdarg.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/select.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <sys/types.h> -#include <time.h> -#include <unistd.h> - -/* command line parameters */ -static int cfg_proto = SOCK_STREAM; -static int cfg_ipproto = IPPROTO_TCP; -static int cfg_num_pkts = 4; -static int do_ipv4 = 1; -static int do_ipv6 = 1; -static int cfg_payload_len = 10; -static bool cfg_show_payload; -static bool cfg_do_pktinfo; -static bool cfg_loop_nodata; -static uint16_t dest_port = 9000; - -static struct sockaddr_in daddr; -static struct sockaddr_in6 daddr6; -static struct timespec ts_prev; - -static void __print_timestamp(const char *name, struct timespec *cur, - uint32_t key, int payload_len) -{ - if (!(cur->tv_sec | cur->tv_nsec)) - return; - - fprintf(stderr, " %s: %lu s %lu us (seq=%u, len=%u)", - name, cur->tv_sec, cur->tv_nsec / 1000, - key, payload_len); - - if ((ts_prev.tv_sec | ts_prev.tv_nsec)) { - int64_t cur_ms, prev_ms; - - cur_ms = (long) cur->tv_sec * 1000 * 1000; - cur_ms += cur->tv_nsec / 1000; - - prev_ms = (long) ts_prev.tv_sec * 1000 * 1000; - prev_ms += ts_prev.tv_nsec / 1000; - - fprintf(stderr, " (%+" PRId64 " us)", cur_ms - prev_ms); - } - - ts_prev = *cur; - fprintf(stderr, "\n"); -} - -static void print_timestamp_usr(void) -{ - struct timespec ts; - struct timeval tv; /* avoid dependency on -lrt */ - - gettimeofday(&tv, NULL); - ts.tv_sec = tv.tv_sec; - ts.tv_nsec = tv.tv_usec * 1000; - - __print_timestamp(" USR", &ts, 0, 0); -} - -static void print_timestamp(struct scm_timestamping *tss, int tstype, - int tskey, int payload_len) -{ - const char *tsname; - - switch (tstype) { - case SCM_TSTAMP_SCHED: - tsname = " ENQ"; - break; - case SCM_TSTAMP_SND: - tsname = " SND"; - break; - case SCM_TSTAMP_ACK: - tsname = " ACK"; - break; - default: - error(1, 0, "unknown timestamp type: %u", - tstype); - } - __print_timestamp(tsname, &tss->ts[0], tskey, payload_len); -} - -/* TODO: convert to check_and_print payload once API is stable */ -static void print_payload(char *data, int len) -{ - int i; - - if (!len) - return; - - if (len > 70) - len = 70; - - fprintf(stderr, "payload: "); - for (i = 0; i < len; i++) - fprintf(stderr, "%02hhx ", data[i]); - fprintf(stderr, "\n"); -} - -static void print_pktinfo(int family, int ifindex, void *saddr, void *daddr) -{ - char sa[INET6_ADDRSTRLEN], da[INET6_ADDRSTRLEN]; - - fprintf(stderr, " pktinfo: ifindex=%u src=%s dst=%s\n", - ifindex, - saddr ? inet_ntop(family, saddr, sa, sizeof(sa)) : "unknown", - daddr ? inet_ntop(family, daddr, da, sizeof(da)) : "unknown"); -} - -static void __poll(int fd) -{ - struct pollfd pollfd; - int ret; - - memset(&pollfd, 0, sizeof(pollfd)); - pollfd.fd = fd; - ret = poll(&pollfd, 1, 100); - if (ret != 1) - error(1, errno, "poll"); -} - -static void __recv_errmsg_cmsg(struct msghdr *msg, int payload_len) -{ - struct sock_extended_err *serr = NULL; - struct scm_timestamping *tss = NULL; - struct cmsghdr *cm; - int batch = 0; - - for (cm = CMSG_FIRSTHDR(msg); - cm && cm->cmsg_len; - cm = CMSG_NXTHDR(msg, cm)) { - if (cm->cmsg_level == SOL_SOCKET && - cm->cmsg_type == SCM_TIMESTAMPING) { - tss = (void *) CMSG_DATA(cm); - } else if ((cm->cmsg_level == SOL_IP && - cm->cmsg_type == IP_RECVERR) || - (cm->cmsg_level == SOL_IPV6 && - cm->cmsg_type == IPV6_RECVERR)) { - serr = (void *) CMSG_DATA(cm); - if (serr->ee_errno != ENOMSG || - serr->ee_origin != SO_EE_ORIGIN_TIMESTAMPING) { - fprintf(stderr, "unknown ip error %d %d\n", - serr->ee_errno, - serr->ee_origin); - serr = NULL; - } - } else if (cm->cmsg_level == SOL_IP && - cm->cmsg_type == IP_PKTINFO) { - struct in_pktinfo *info = (void *) CMSG_DATA(cm); - print_pktinfo(AF_INET, info->ipi_ifindex, - &info->ipi_spec_dst, &info->ipi_addr); - } else if (cm->cmsg_level == SOL_IPV6 && - cm->cmsg_type == IPV6_PKTINFO) { - struct in6_pktinfo *info6 = (void *) CMSG_DATA(cm); - print_pktinfo(AF_INET6, info6->ipi6_ifindex, - NULL, &info6->ipi6_addr); - } else - fprintf(stderr, "unknown cmsg %d,%d\n", - cm->cmsg_level, cm->cmsg_type); - - if (serr && tss) { - print_timestamp(tss, serr->ee_info, serr->ee_data, - payload_len); - serr = NULL; - tss = NULL; - batch++; - } - } - - if (batch > 1) - fprintf(stderr, "batched %d timestamps\n", batch); -} - -static int recv_errmsg(int fd) -{ - static char ctrl[1024 /* overprovision*/]; - static struct msghdr msg; - struct iovec entry; - static char *data; - int ret = 0; - - data = malloc(cfg_payload_len); - if (!data) - error(1, 0, "malloc"); - - memset(&msg, 0, sizeof(msg)); - memset(&entry, 0, sizeof(entry)); - memset(ctrl, 0, sizeof(ctrl)); - - entry.iov_base = data; - entry.iov_len = cfg_payload_len; - msg.msg_iov = &entry; - msg.msg_iovlen = 1; - msg.msg_name = NULL; - msg.msg_namelen = 0; - msg.msg_control = ctrl; - msg.msg_controllen = sizeof(ctrl); - - ret = recvmsg(fd, &msg, MSG_ERRQUEUE); - if (ret == -1 && errno != EAGAIN) - error(1, errno, "recvmsg"); - - if (ret >= 0) { - __recv_errmsg_cmsg(&msg, ret); - if (cfg_show_payload) - print_payload(data, cfg_payload_len); - } - - free(data); - return ret == -1; -} - -static void do_test(int family, unsigned int opt) -{ - char *buf; - int fd, i, val = 1, total_len; - - if (family == AF_INET6 && cfg_proto != SOCK_STREAM) { - /* due to lack of checksum generation code */ - fprintf(stderr, "test: skipping datagram over IPv6\n"); - return; - } - - total_len = cfg_payload_len; - if (cfg_proto == SOCK_RAW) { - total_len += sizeof(struct udphdr); - if (cfg_ipproto == IPPROTO_RAW) - total_len += sizeof(struct iphdr); - } - - buf = malloc(total_len); - if (!buf) - error(1, 0, "malloc"); - - fd = socket(family, cfg_proto, cfg_ipproto); - if (fd < 0) - error(1, errno, "socket"); - - if (cfg_proto == SOCK_STREAM) { - if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, - (char*) &val, sizeof(val))) - error(1, 0, "setsockopt no nagle"); - - if (family == PF_INET) { - if (connect(fd, (void *) &daddr, sizeof(daddr))) - error(1, errno, "connect ipv4"); - } else { - if (connect(fd, (void *) &daddr6, sizeof(daddr6))) - error(1, errno, "connect ipv6"); - } - } - - if (cfg_do_pktinfo) { - if (family == AF_INET6) { - if (setsockopt(fd, SOL_IPV6, IPV6_RECVPKTINFO, - &val, sizeof(val))) - error(1, errno, "setsockopt pktinfo ipv6"); - } else { - if (setsockopt(fd, SOL_IP, IP_PKTINFO, - &val, sizeof(val))) - error(1, errno, "setsockopt pktinfo ipv4"); - } - } - - opt |= SOF_TIMESTAMPING_SOFTWARE | - SOF_TIMESTAMPING_OPT_CMSG | - SOF_TIMESTAMPING_OPT_ID; - if (cfg_loop_nodata) - opt |= SOF_TIMESTAMPING_OPT_TSONLY; - - if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, - (char *) &opt, sizeof(opt))) - error(1, 0, "setsockopt timestamping"); - - for (i = 0; i < cfg_num_pkts; i++) { - memset(&ts_prev, 0, sizeof(ts_prev)); - memset(buf, 'a' + i, total_len); - - if (cfg_proto == SOCK_RAW) { - struct udphdr *udph; - int off = 0; - - if (cfg_ipproto == IPPROTO_RAW) { - struct iphdr *iph = (void *) buf; - - memset(iph, 0, sizeof(*iph)); - iph->ihl = 5; - iph->version = 4; - iph->ttl = 2; - iph->daddr = daddr.sin_addr.s_addr; - iph->protocol = IPPROTO_UDP; - /* kernel writes saddr, csum, len */ - - off = sizeof(*iph); - } - - udph = (void *) buf + off; - udph->source = ntohs(9000); /* random spoof */ - udph->dest = ntohs(dest_port); - udph->len = ntohs(sizeof(*udph) + cfg_payload_len); - udph->check = 0; /* not allowed for IPv6 */ - } - - print_timestamp_usr(); - if (cfg_proto != SOCK_STREAM) { - if (family == PF_INET) - val = sendto(fd, buf, total_len, 0, (void *) &daddr, sizeof(daddr)); - else - val = sendto(fd, buf, total_len, 0, (void *) &daddr6, sizeof(daddr6)); - } else { - val = send(fd, buf, cfg_payload_len, 0); - } - if (val != total_len) - error(1, errno, "send"); - - /* wait for all errors to be queued, else ACKs arrive OOO */ - usleep(50 * 1000); - - __poll(fd); - - while (!recv_errmsg(fd)) {} - } - - if (close(fd)) - error(1, errno, "close"); - - free(buf); - usleep(400 * 1000); -} - -static void __attribute__((noreturn)) usage(const char *filepath) -{ - fprintf(stderr, "\nUsage: %s [options] hostname\n" - "\nwhere options are:\n" - " -4: only IPv4\n" - " -6: only IPv6\n" - " -h: show this message\n" - " -I: request PKTINFO\n" - " -l N: send N bytes at a time\n" - " -n: set no-payload option\n" - " -r: use raw\n" - " -R: use raw (IP_HDRINCL)\n" - " -p N: connect to port N\n" - " -u: use udp\n" - " -x: show payload (up to 70 bytes)\n", - filepath); - exit(1); -} - -static void parse_opt(int argc, char **argv) -{ - int proto_count = 0; - char c; - - while ((c = getopt(argc, argv, "46hIl:np:rRux")) != -1) { - switch (c) { - case '4': - do_ipv6 = 0; - break; - case '6': - do_ipv4 = 0; - break; - case 'I': - cfg_do_pktinfo = true; - break; - case 'n': - cfg_loop_nodata = true; - break; - case 'r': - proto_count++; - cfg_proto = SOCK_RAW; - cfg_ipproto = IPPROTO_UDP; - break; - case 'R': - proto_count++; - cfg_proto = SOCK_RAW; - cfg_ipproto = IPPROTO_RAW; - break; - case 'u': - proto_count++; - cfg_proto = SOCK_DGRAM; - cfg_ipproto = IPPROTO_UDP; - break; - case 'l': - cfg_payload_len = strtoul(optarg, NULL, 10); - break; - case 'p': - dest_port = strtoul(optarg, NULL, 10); - break; - case 'x': - cfg_show_payload = true; - break; - case 'h': - default: - usage(argv[0]); - } - } - - if (!cfg_payload_len) - error(1, 0, "payload may not be nonzero"); - if (cfg_proto != SOCK_STREAM && cfg_payload_len > 1472) - error(1, 0, "udp packet might exceed expected MTU"); - if (!do_ipv4 && !do_ipv6) - error(1, 0, "pass -4 or -6, not both"); - if (proto_count > 1) - error(1, 0, "pass -r, -R or -u, not multiple"); - - if (optind != argc - 1) - error(1, 0, "missing required hostname argument"); -} - -static void resolve_hostname(const char *hostname) -{ - struct addrinfo *addrs, *cur; - int have_ipv4 = 0, have_ipv6 = 0; - - if (getaddrinfo(hostname, NULL, NULL, &addrs)) - error(1, errno, "getaddrinfo"); - - cur = addrs; - while (cur && !have_ipv4 && !have_ipv6) { - if (!have_ipv4 && cur->ai_family == AF_INET) { - memcpy(&daddr, cur->ai_addr, sizeof(daddr)); - daddr.sin_port = htons(dest_port); - have_ipv4 = 1; - } - else if (!have_ipv6 && cur->ai_family == AF_INET6) { - memcpy(&daddr6, cur->ai_addr, sizeof(daddr6)); - daddr6.sin6_port = htons(dest_port); - have_ipv6 = 1; - } - cur = cur->ai_next; - } - if (addrs) - freeaddrinfo(addrs); - - do_ipv4 &= have_ipv4; - do_ipv6 &= have_ipv6; -} - -static void do_main(int family) -{ - fprintf(stderr, "family: %s\n", - family == PF_INET ? "INET" : "INET6"); - - fprintf(stderr, "test SND\n"); - do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE); - - fprintf(stderr, "test ENQ\n"); - do_test(family, SOF_TIMESTAMPING_TX_SCHED); - - fprintf(stderr, "test ENQ + SND\n"); - do_test(family, SOF_TIMESTAMPING_TX_SCHED | - SOF_TIMESTAMPING_TX_SOFTWARE); - - if (cfg_proto == SOCK_STREAM) { - fprintf(stderr, "\ntest ACK\n"); - do_test(family, SOF_TIMESTAMPING_TX_ACK); - - fprintf(stderr, "\ntest SND + ACK\n"); - do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE | - SOF_TIMESTAMPING_TX_ACK); - - fprintf(stderr, "\ntest ENQ + SND + ACK\n"); - do_test(family, SOF_TIMESTAMPING_TX_SCHED | - SOF_TIMESTAMPING_TX_SOFTWARE | - SOF_TIMESTAMPING_TX_ACK); - } -} - -const char *sock_names[] = { NULL, "TCP", "UDP", "RAW" }; - -int main(int argc, char **argv) -{ - if (argc == 1) - usage(argv[0]); - - parse_opt(argc, argv); - resolve_hostname(argv[argc - 1]); - - fprintf(stderr, "protocol: %s\n", sock_names[cfg_proto]); - fprintf(stderr, "payload: %u\n", cfg_payload_len); - fprintf(stderr, "server port: %u\n", dest_port); - fprintf(stderr, "\n"); - - if (do_ipv4) - do_main(PF_INET); - if (do_ipv6) - do_main(PF_INET6); - - return 0; -} diff --git a/Documentation/pcmcia/.gitignore b/Documentation/pcmcia/.gitignore deleted file mode 100644 index 53d081336757..000000000000 --- a/Documentation/pcmcia/.gitignore +++ /dev/null @@ -1 +0,0 @@ -crc32hash diff --git a/Documentation/pcmcia/Makefile b/Documentation/pcmcia/Makefile deleted file mode 100644 index 47a8fa162683..000000000000 --- a/Documentation/pcmcia/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# List of programs to build -hostprogs-y := crc32hash - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS_crc32hash.o += -I$(objtree)/usr/include diff --git a/Documentation/pcmcia/crc32hash.c b/Documentation/pcmcia/crc32hash.c deleted file mode 100644 index 44f8beea7260..000000000000 --- a/Documentation/pcmcia/crc32hash.c +++ /dev/null @@ -1,32 +0,0 @@ -/* crc32hash.c - derived from linux/lib/crc32.c, GNU GPL v2 */ -/* Usage example: -$ ./crc32hash "Dual Speed" -*/ - -#include <string.h> -#include <stdio.h> -#include <ctype.h> -#include <stdlib.h> - -static unsigned int crc32(unsigned char const *p, unsigned int len) -{ - int i; - unsigned int crc = 0; - while (len--) { - crc ^= *p++; - for (i = 0; i < 8; i++) - crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0); - } - return crc; -} - -int main(int argc, char **argv) { - unsigned int result; - if (argc != 2) { - printf("no string passed as argument\n"); - return -1; - } - result = crc32((unsigned char const *)argv[1], strlen(argv[1])); - printf("0x%x\n", result); - return 0; -} diff --git a/Documentation/pcmcia/devicetable.txt b/Documentation/pcmcia/devicetable.txt index 199afd100cf2..5f3e00ab54c4 100644 --- a/Documentation/pcmcia/devicetable.txt +++ b/Documentation/pcmcia/devicetable.txt @@ -27,7 +27,7 @@ pcmcia:m0149cC1ABf06pfn00fn00pa725B842DpbF1EFEE84pc0877B627pd00000000 The hex value after "pa" is the hash of product ID string 1, after "pb" for string 2 and so on. -Alternatively, you can use crc32hash (see Documentation/pcmcia/crc32hash.c) +Alternatively, you can use crc32hash (see tools/pcmcia/crc32hash.c) to determine the crc32 hash. Simply pass the string you want to evaluate as argument to this program, e.g.: -$ ./crc32hash "Dual Speed" +$ tools/pcmcia/crc32hash "Dual Speed" diff --git a/Documentation/prctl/.gitignore b/Documentation/prctl/.gitignore deleted file mode 100644 index 0b5c27447bf6..000000000000 --- a/Documentation/prctl/.gitignore +++ /dev/null @@ -1,3 +0,0 @@ -disable-tsc-ctxt-sw-stress-test -disable-tsc-on-off-stress-test -disable-tsc-test diff --git a/Documentation/prctl/Makefile b/Documentation/prctl/Makefile deleted file mode 100644 index 44de3080c7f2..000000000000 --- a/Documentation/prctl/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -ifndef CROSS_COMPILE -# List of programs to build -hostprogs-$(CONFIG_X86) := disable-tsc-ctxt-sw-stress-test disable-tsc-on-off-stress-test disable-tsc-test -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS_disable-tsc-ctxt-sw-stress-test.o += -I$(objtree)/usr/include -HOSTCFLAGS_disable-tsc-on-off-stress-test.o += -I$(objtree)/usr/include -HOSTCFLAGS_disable-tsc-test.o += -I$(objtree)/usr/include -endif diff --git a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c b/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c deleted file mode 100644 index f7499d1c0415..000000000000 --- a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...) - * - * Tests if the control register is updated correctly - * at context switches - * - * Warning: this test will cause a very high load for a few seconds - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <signal.h> -#include <inttypes.h> -#include <wait.h> - - -#include <sys/prctl.h> -#include <linux/prctl.h> - -/* Get/set the process' ability to use the timestamp counter instruction */ -#ifndef PR_GET_TSC -#define PR_GET_TSC 25 -#define PR_SET_TSC 26 -# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */ -# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */ -#endif - -static uint64_t rdtsc(void) -{ -uint32_t lo, hi; -/* We cannot use "=A", since this would use %rax on x86_64 */ -__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); -return (uint64_t)hi << 32 | lo; -} - -static void sigsegv_expect(int sig) -{ - /* */ -} - -static void segvtask(void) -{ - if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0) - { - perror("prctl"); - exit(0); - } - signal(SIGSEGV, sigsegv_expect); - alarm(10); - rdtsc(); - fprintf(stderr, "FATAL ERROR, rdtsc() succeeded while disabled\n"); - exit(0); -} - - -static void sigsegv_fail(int sig) -{ - fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n"); - exit(0); -} - -static void rdtsctask(void) -{ - if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0) - { - perror("prctl"); - exit(0); - } - signal(SIGSEGV, sigsegv_fail); - alarm(10); - for(;;) rdtsc(); -} - - -int main(void) -{ - int n_tasks = 100, i; - - fprintf(stderr, "[No further output means we're allright]\n"); - - for (i=0; i<n_tasks; i++) - if (fork() == 0) - { - if (i & 1) - segvtask(); - else - rdtsctask(); - } - - for (i=0; i<n_tasks; i++) - wait(NULL); - - exit(0); -} - diff --git a/Documentation/prctl/disable-tsc-on-off-stress-test.c b/Documentation/prctl/disable-tsc-on-off-stress-test.c deleted file mode 100644 index a06f027e9d16..000000000000 --- a/Documentation/prctl/disable-tsc-on-off-stress-test.c +++ /dev/null @@ -1,96 +0,0 @@ -/* - * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...) - * - * Tests if the control register is updated correctly - * when set with prctl() - * - * Warning: this test will cause a very high load for a few seconds - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <signal.h> -#include <inttypes.h> -#include <wait.h> - - -#include <sys/prctl.h> -#include <linux/prctl.h> - -/* Get/set the process' ability to use the timestamp counter instruction */ -#ifndef PR_GET_TSC -#define PR_GET_TSC 25 -#define PR_SET_TSC 26 -# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */ -# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */ -#endif - -/* snippet from wikipedia :-) */ - -static uint64_t rdtsc(void) -{ -uint32_t lo, hi; -/* We cannot use "=A", since this would use %rax on x86_64 */ -__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); -return (uint64_t)hi << 32 | lo; -} - -int should_segv = 0; - -static void sigsegv_cb(int sig) -{ - if (!should_segv) - { - fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n"); - exit(0); - } - if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0) - { - perror("prctl"); - exit(0); - } - should_segv = 0; - - rdtsc(); -} - -static void task(void) -{ - signal(SIGSEGV, sigsegv_cb); - alarm(10); - for(;;) - { - rdtsc(); - if (should_segv) - { - fprintf(stderr, "FATAL ERROR, rdtsc() succeeded while disabled\n"); - exit(0); - } - if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0) - { - perror("prctl"); - exit(0); - } - should_segv = 1; - } -} - - -int main(void) -{ - int n_tasks = 100, i; - - fprintf(stderr, "[No further output means we're allright]\n"); - - for (i=0; i<n_tasks; i++) - if (fork() == 0) - task(); - - for (i=0; i<n_tasks; i++) - wait(NULL); - - exit(0); -} - diff --git a/Documentation/prctl/disable-tsc-test.c b/Documentation/prctl/disable-tsc-test.c deleted file mode 100644 index 8d494f7bebdb..000000000000 --- a/Documentation/prctl/disable-tsc-test.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...) - * - * Basic test to test behaviour of PR_GET_TSC and PR_SET_TSC - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <signal.h> -#include <inttypes.h> - - -#include <sys/prctl.h> -#include <linux/prctl.h> - -/* Get/set the process' ability to use the timestamp counter instruction */ -#ifndef PR_GET_TSC -#define PR_GET_TSC 25 -#define PR_SET_TSC 26 -# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */ -# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */ -#endif - -const char *tsc_names[] = -{ - [0] = "[not set]", - [PR_TSC_ENABLE] = "PR_TSC_ENABLE", - [PR_TSC_SIGSEGV] = "PR_TSC_SIGSEGV", -}; - -static uint64_t rdtsc(void) -{ -uint32_t lo, hi; -/* We cannot use "=A", since this would use %rax on x86_64 */ -__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); -return (uint64_t)hi << 32 | lo; -} - -static void sigsegv_cb(int sig) -{ - int tsc_val = 0; - - printf("[ SIG_SEGV ]\n"); - printf("prctl(PR_GET_TSC, &tsc_val); "); - fflush(stdout); - - if ( prctl(PR_GET_TSC, &tsc_val) == -1) - perror("prctl"); - - printf("tsc_val == %s\n", tsc_names[tsc_val]); - printf("prctl(PR_SET_TSC, PR_TSC_ENABLE)\n"); - fflush(stdout); - if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1) - perror("prctl"); - - printf("rdtsc() == "); -} - -int main(void) -{ - int tsc_val = 0; - - signal(SIGSEGV, sigsegv_cb); - - printf("rdtsc() == %llu\n", (unsigned long long)rdtsc()); - printf("prctl(PR_GET_TSC, &tsc_val); "); - fflush(stdout); - - if ( prctl(PR_GET_TSC, &tsc_val) == -1) - perror("prctl"); - - printf("tsc_val == %s\n", tsc_names[tsc_val]); - printf("rdtsc() == %llu\n", (unsigned long long)rdtsc()); - printf("prctl(PR_SET_TSC, PR_TSC_ENABLE)\n"); - fflush(stdout); - - if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1) - perror("prctl"); - - printf("rdtsc() == %llu\n", (unsigned long long)rdtsc()); - printf("prctl(PR_SET_TSC, PR_TSC_SIGSEGV)\n"); - fflush(stdout); - - if ( prctl(PR_SET_TSC, PR_TSC_SIGSEGV) == -1) - perror("prctl"); - - printf("rdtsc() == "); - fflush(stdout); - printf("%llu\n", (unsigned long long)rdtsc()); - fflush(stdout); - - exit(EXIT_SUCCESS); -} - diff --git a/Documentation/ptp/.gitignore b/Documentation/ptp/.gitignore deleted file mode 100644 index f562e49d6917..000000000000 --- a/Documentation/ptp/.gitignore +++ /dev/null @@ -1 +0,0 @@ -testptp diff --git a/Documentation/ptp/Makefile b/Documentation/ptp/Makefile deleted file mode 100644 index 293d6c09a11f..000000000000 --- a/Documentation/ptp/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# List of programs to build -hostprogs-y := testptp - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS_testptp.o += -I$(objtree)/usr/include -HOSTLOADLIBES_testptp := -lrt diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c deleted file mode 100644 index 5d2eae16f7ee..000000000000 --- a/Documentation/ptp/testptp.c +++ /dev/null @@ -1,523 +0,0 @@ -/* - * PTP 1588 clock support - User space test program - * - * Copyright (C) 2010 OMICRON electronics GmbH - * - * 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. - * - * 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 for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#define _GNU_SOURCE -#define __SANE_USERSPACE_TYPES__ /* For PPC64, to get LL64 types */ -#include <errno.h> -#include <fcntl.h> -#include <inttypes.h> -#include <math.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/timex.h> -#include <sys/types.h> -#include <time.h> -#include <unistd.h> - -#include <linux/ptp_clock.h> - -#define DEVICE "/dev/ptp0" - -#ifndef ADJ_SETOFFSET -#define ADJ_SETOFFSET 0x0100 -#endif - -#ifndef CLOCK_INVALID -#define CLOCK_INVALID -1 -#endif - -/* clock_adjtime is not available in GLIBC < 2.14 */ -#if !__GLIBC_PREREQ(2, 14) -#include <sys/syscall.h> -static int clock_adjtime(clockid_t id, struct timex *tx) -{ - return syscall(__NR_clock_adjtime, id, tx); -} -#endif - -static clockid_t get_clockid(int fd) -{ -#define CLOCKFD 3 -#define FD_TO_CLOCKID(fd) ((~(clockid_t) (fd) << 3) | CLOCKFD) - - return FD_TO_CLOCKID(fd); -} - -static void handle_alarm(int s) -{ - printf("received signal %d\n", s); -} - -static int install_handler(int signum, void (*handler)(int)) -{ - struct sigaction action; - sigset_t mask; - - /* Unblock the signal. */ - sigemptyset(&mask); - sigaddset(&mask, signum); - sigprocmask(SIG_UNBLOCK, &mask, NULL); - - /* Install the signal handler. */ - action.sa_handler = handler; - action.sa_flags = 0; - sigemptyset(&action.sa_mask); - sigaction(signum, &action, NULL); - - return 0; -} - -static long ppb_to_scaled_ppm(int ppb) -{ - /* - * The 'freq' field in the 'struct timex' is in parts per - * million, but with a 16 bit binary fractional field. - * Instead of calculating either one of - * - * scaled_ppm = (ppb / 1000) << 16 [1] - * scaled_ppm = (ppb << 16) / 1000 [2] - * - * we simply use double precision math, in order to avoid the - * truncation in [1] and the possible overflow in [2]. - */ - return (long) (ppb * 65.536); -} - -static int64_t pctns(struct ptp_clock_time *t) -{ - return t->sec * 1000000000LL + t->nsec; -} - -static void usage(char *progname) -{ - fprintf(stderr, - "usage: %s [options]\n" - " -a val request a one-shot alarm after 'val' seconds\n" - " -A val request a periodic alarm every 'val' seconds\n" - " -c query the ptp clock's capabilities\n" - " -d name device to open\n" - " -e val read 'val' external time stamp events\n" - " -f val adjust the ptp clock frequency by 'val' ppb\n" - " -g get the ptp clock time\n" - " -h prints this message\n" - " -i val index for event/trigger\n" - " -k val measure the time offset between system and phc clock\n" - " for 'val' times (Maximum 25)\n" - " -l list the current pin configuration\n" - " -L pin,val configure pin index 'pin' with function 'val'\n" - " the channel index is taken from the '-i' option\n" - " 'val' specifies the auxiliary function:\n" - " 0 - none\n" - " 1 - external time stamp\n" - " 2 - periodic output\n" - " -p val enable output with a period of 'val' nanoseconds\n" - " -P val enable or disable (val=1|0) the system clock PPS\n" - " -s set the ptp clock time from the system time\n" - " -S set the system time from the ptp clock time\n" - " -t val shift the ptp clock time by 'val' seconds\n" - " -T val set the ptp clock time to 'val' seconds\n", - progname); -} - -int main(int argc, char *argv[]) -{ - struct ptp_clock_caps caps; - struct ptp_extts_event event; - struct ptp_extts_request extts_request; - struct ptp_perout_request perout_request; - struct ptp_pin_desc desc; - struct timespec ts; - struct timex tx; - - static timer_t timerid; - struct itimerspec timeout; - struct sigevent sigevent; - - struct ptp_clock_time *pct; - struct ptp_sys_offset *sysoff; - - - char *progname; - unsigned int i; - int c, cnt, fd; - - char *device = DEVICE; - clockid_t clkid; - int adjfreq = 0x7fffffff; - int adjtime = 0; - int capabilities = 0; - int extts = 0; - int gettime = 0; - int index = 0; - int list_pins = 0; - int oneshot = 0; - int pct_offset = 0; - int n_samples = 0; - int periodic = 0; - int perout = -1; - int pin_index = -1, pin_func; - int pps = -1; - int seconds = 0; - int settime = 0; - - int64_t t1, t2, tp; - int64_t interval, offset; - - progname = strrchr(argv[0], '/'); - progname = progname ? 1+progname : argv[0]; - while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghi:k:lL:p:P:sSt:T:v"))) { - switch (c) { - case 'a': - oneshot = atoi(optarg); - break; - case 'A': - periodic = atoi(optarg); - break; - case 'c': - capabilities = 1; - break; - case 'd': - device = optarg; - break; - case 'e': - extts = atoi(optarg); - break; - case 'f': - adjfreq = atoi(optarg); - break; - case 'g': - gettime = 1; - break; - case 'i': - index = atoi(optarg); - break; - case 'k': - pct_offset = 1; - n_samples = atoi(optarg); - break; - case 'l': - list_pins = 1; - break; - case 'L': - cnt = sscanf(optarg, "%d,%d", &pin_index, &pin_func); - if (cnt != 2) { - usage(progname); - return -1; - } - break; - case 'p': - perout = atoi(optarg); - break; - case 'P': - pps = atoi(optarg); - break; - case 's': - settime = 1; - break; - case 'S': - settime = 2; - break; - case 't': - adjtime = atoi(optarg); - break; - case 'T': - settime = 3; - seconds = atoi(optarg); - break; - case 'h': - usage(progname); - return 0; - case '?': - default: - usage(progname); - return -1; - } - } - - fd = open(device, O_RDWR); - if (fd < 0) { - fprintf(stderr, "opening %s: %s\n", device, strerror(errno)); - return -1; - } - - clkid = get_clockid(fd); - if (CLOCK_INVALID == clkid) { - fprintf(stderr, "failed to read clock id\n"); - return -1; - } - - if (capabilities) { - if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) { - perror("PTP_CLOCK_GETCAPS"); - } else { - printf("capabilities:\n" - " %d maximum frequency adjustment (ppb)\n" - " %d programmable alarms\n" - " %d external time stamp channels\n" - " %d programmable periodic signals\n" - " %d pulse per second\n" - " %d programmable pins\n" - " %d cross timestamping\n", - caps.max_adj, - caps.n_alarm, - caps.n_ext_ts, - caps.n_per_out, - caps.pps, - caps.n_pins, - caps.cross_timestamping); - } - } - - if (0x7fffffff != adjfreq) { - memset(&tx, 0, sizeof(tx)); - tx.modes = ADJ_FREQUENCY; - tx.freq = ppb_to_scaled_ppm(adjfreq); - if (clock_adjtime(clkid, &tx)) { - perror("clock_adjtime"); - } else { - puts("frequency adjustment okay"); - } - } - - if (adjtime) { - memset(&tx, 0, sizeof(tx)); - tx.modes = ADJ_SETOFFSET; - tx.time.tv_sec = adjtime; - tx.time.tv_usec = 0; - if (clock_adjtime(clkid, &tx) < 0) { - perror("clock_adjtime"); - } else { - puts("time shift okay"); - } - } - - if (gettime) { - if (clock_gettime(clkid, &ts)) { - perror("clock_gettime"); - } else { - printf("clock time: %ld.%09ld or %s", - ts.tv_sec, ts.tv_nsec, ctime(&ts.tv_sec)); - } - } - - if (settime == 1) { - clock_gettime(CLOCK_REALTIME, &ts); - if (clock_settime(clkid, &ts)) { - perror("clock_settime"); - } else { - puts("set time okay"); - } - } - - if (settime == 2) { - clock_gettime(clkid, &ts); - if (clock_settime(CLOCK_REALTIME, &ts)) { - perror("clock_settime"); - } else { - puts("set time okay"); - } - } - - if (settime == 3) { - ts.tv_sec = seconds; - ts.tv_nsec = 0; - if (clock_settime(clkid, &ts)) { - perror("clock_settime"); - } else { - puts("set time okay"); - } - } - - if (extts) { - memset(&extts_request, 0, sizeof(extts_request)); - extts_request.index = index; - extts_request.flags = PTP_ENABLE_FEATURE; - if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) { - perror("PTP_EXTTS_REQUEST"); - extts = 0; - } else { - puts("external time stamp request okay"); - } - for (; extts; extts--) { - cnt = read(fd, &event, sizeof(event)); - if (cnt != sizeof(event)) { - perror("read"); - break; - } - printf("event index %u at %lld.%09u\n", event.index, - event.t.sec, event.t.nsec); - fflush(stdout); - } - /* Disable the feature again. */ - extts_request.flags = 0; - if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) { - perror("PTP_EXTTS_REQUEST"); - } - } - - if (list_pins) { - int n_pins = 0; - if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) { - perror("PTP_CLOCK_GETCAPS"); - } else { - n_pins = caps.n_pins; - } - for (i = 0; i < n_pins; i++) { - desc.index = i; - if (ioctl(fd, PTP_PIN_GETFUNC, &desc)) { - perror("PTP_PIN_GETFUNC"); - break; - } - printf("name %s index %u func %u chan %u\n", - desc.name, desc.index, desc.func, desc.chan); - } - } - - if (oneshot) { - install_handler(SIGALRM, handle_alarm); - /* Create a timer. */ - sigevent.sigev_notify = SIGEV_SIGNAL; - sigevent.sigev_signo = SIGALRM; - if (timer_create(clkid, &sigevent, &timerid)) { - perror("timer_create"); - return -1; - } - /* Start the timer. */ - memset(&timeout, 0, sizeof(timeout)); - timeout.it_value.tv_sec = oneshot; - if (timer_settime(timerid, 0, &timeout, NULL)) { - perror("timer_settime"); - return -1; - } - pause(); - timer_delete(timerid); - } - - if (periodic) { - install_handler(SIGALRM, handle_alarm); - /* Create a timer. */ - sigevent.sigev_notify = SIGEV_SIGNAL; - sigevent.sigev_signo = SIGALRM; - if (timer_create(clkid, &sigevent, &timerid)) { - perror("timer_create"); - return -1; - } - /* Start the timer. */ - memset(&timeout, 0, sizeof(timeout)); - timeout.it_interval.tv_sec = periodic; - timeout.it_value.tv_sec = periodic; - if (timer_settime(timerid, 0, &timeout, NULL)) { - perror("timer_settime"); - return -1; - } - while (1) { - pause(); - } - timer_delete(timerid); - } - - if (perout >= 0) { - if (clock_gettime(clkid, &ts)) { - perror("clock_gettime"); - return -1; - } - memset(&perout_request, 0, sizeof(perout_request)); - perout_request.index = index; - perout_request.start.sec = ts.tv_sec + 2; - perout_request.start.nsec = 0; - perout_request.period.sec = 0; - perout_request.period.nsec = perout; - if (ioctl(fd, PTP_PEROUT_REQUEST, &perout_request)) { - perror("PTP_PEROUT_REQUEST"); - } else { - puts("periodic output request okay"); - } - } - - if (pin_index >= 0) { - memset(&desc, 0, sizeof(desc)); - desc.index = pin_index; - desc.func = pin_func; - desc.chan = index; - if (ioctl(fd, PTP_PIN_SETFUNC, &desc)) { - perror("PTP_PIN_SETFUNC"); - } else { - puts("set pin function okay"); - } - } - - if (pps != -1) { - int enable = pps ? 1 : 0; - if (ioctl(fd, PTP_ENABLE_PPS, enable)) { - perror("PTP_ENABLE_PPS"); - } else { - puts("pps for system time request okay"); - } - } - - if (pct_offset) { - if (n_samples <= 0 || n_samples > 25) { - puts("n_samples should be between 1 and 25"); - usage(progname); - return -1; - } - - sysoff = calloc(1, sizeof(*sysoff)); - if (!sysoff) { - perror("calloc"); - return -1; - } - sysoff->n_samples = n_samples; - - if (ioctl(fd, PTP_SYS_OFFSET, sysoff)) - perror("PTP_SYS_OFFSET"); - else - puts("system and phc clock time offset request okay"); - - pct = &sysoff->ts[0]; - for (i = 0; i < sysoff->n_samples; i++) { - t1 = pctns(pct+2*i); - tp = pctns(pct+2*i+1); - t2 = pctns(pct+2*i+2); - interval = t2 - t1; - offset = (t2 + t1) / 2 - tp; - - printf("system time: %lld.%u\n", - (pct+2*i)->sec, (pct+2*i)->nsec); - printf("phc time: %lld.%u\n", - (pct+2*i+1)->sec, (pct+2*i+1)->nsec); - printf("system time: %lld.%u\n", - (pct+2*i+2)->sec, (pct+2*i+2)->nsec); - printf("system/phc clock time offset is %" PRId64 " ns\n" - "system clock time delay is %" PRId64 " ns\n", - offset, interval); - } - - free(sysoff); - } - - close(fd); - return 0; -} diff --git a/Documentation/ptp/testptp.mk b/Documentation/ptp/testptp.mk deleted file mode 100644 index 4ef2d9755421..000000000000 --- a/Documentation/ptp/testptp.mk +++ /dev/null @@ -1,33 +0,0 @@ -# PTP 1588 clock support - User space test program -# -# Copyright (C) 2010 OMICRON electronics GmbH -# -# 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. -# -# 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 for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -CC = $(CROSS_COMPILE)gcc -INC = -I$(KBUILD_OUTPUT)/usr/include -CFLAGS = -Wall $(INC) -LDLIBS = -lrt -PROGS = testptp - -all: $(PROGS) - -testptp: testptp.o - -clean: - rm -f testptp.o - -distclean: clean - rm -f $(PROGS) diff --git a/Documentation/scsi/g_NCR5380.txt b/Documentation/scsi/g_NCR5380.txt index fd880150aeea..e2c187947e58 100644 --- a/Documentation/scsi/g_NCR5380.txt +++ b/Documentation/scsi/g_NCR5380.txt @@ -21,16 +21,6 @@ NCR53c400 card, the Trantor T130B in its default configuration: The NCR53c400 does not support DMA but it does have Pseudo-DMA which is supported by the driver. -If the default configuration does not work for you, you can use the kernel -command lines (eg using the lilo append command): - ncr5380=addr,irq - ncr53c400=addr,irq - ncr53c400a=addr,irq - dtc3181e=addr,irq - -The driver does not probe for any addresses or ports other than those in -the OVERRIDE or given to the kernel as above. - This driver provides some information on what it has detected in /proc/scsi/g_NCR5380/x where x is the scsi card number as detected at boot time. More info to come in the future. @@ -38,6 +28,16 @@ time. More info to come in the future. This driver works as a module. When included as a module, parameters can be passed on the insmod/modprobe command line: + irq=xx[,...] the interrupt(s) + base=xx[,...] the port or base address(es) (for port or memory mapped, resp.) + card=xx[,...] card type(s): + 0 = NCR5380, + 1 = NCR53C400, + 2 = NCR53C400A, + 3 = Domex Technology Corp 3181E (DTC3181E) + 4 = Hewlett Packard C2502 + +These old-style parameters can support only one card: ncr_irq=xx the interrupt ncr_addr=xx the port or base address (for port or memory mapped, resp.) @@ -46,11 +46,19 @@ command line: ncr_53c400a=1 to set up for a NCR53C400A board dtc_3181e=1 to set up for a Domex Technology Corp 3181E board hp_c2502=1 to set up for a Hewlett Packard C2502 board + e.g. -modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1 +OLD: modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1 +NEW: modprobe g_NCR5380 irq=5 base=0x350 card=0 for a port mapped NCR5380 board or -modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1 - for a memory mapped NCR53C400 board with interrupts disabled. + +OLD: modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1 +NEW: modprobe g_NCR5380 irq=255 base=0xc8000 card=1 + for a memory mapped NCR53C400 board with interrupts disabled or + +NEW: modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4 + for two cards: DTC3181 (in non-PnP mode) at 0x240 with no IRQ + and HP C2502 at 0x300 with IRQ 7 (255 should be specified for no or DMA interrupt, 254 to autoprobe for an IRQ line if overridden on the command line.) diff --git a/Documentation/spi/00-INDEX b/Documentation/spi/00-INDEX index 4644bf0d9832..8e4bb17d70eb 100644 --- a/Documentation/spi/00-INDEX +++ b/Documentation/spi/00-INDEX @@ -1,7 +1,5 @@ 00-INDEX - this file. -Makefile - - Makefile for the example sourcefiles. butterfly - AVR Butterfly SPI driver overview and pin configuration. ep93xx_spi diff --git a/Documentation/timers/.gitignore b/Documentation/timers/.gitignore deleted file mode 100644 index c5c45d7ec0df..000000000000 --- a/Documentation/timers/.gitignore +++ /dev/null @@ -1 +0,0 @@ -hpet_example diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX index ee212a27772f..3be05fe0f1f9 100644 --- a/Documentation/timers/00-INDEX +++ b/Documentation/timers/00-INDEX @@ -4,12 +4,8 @@ highres.txt - High resolution timers and dynamic ticks design notes hpet.txt - High Precision Event Timer Driver for Linux -hpet_example.c - - sample hpet timer test program hrtimers.txt - subsystem for high-resolution kernel timers -Makefile - - Build and link hpet_example NO_HZ.txt - Summary of the different methods for the scheduler clock-interrupts management. timekeeping.txt diff --git a/Documentation/timers/Makefile b/Documentation/timers/Makefile deleted file mode 100644 index 6c09ee6ca721..000000000000 --- a/Documentation/timers/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# List of programs to build -hostprogs-$(CONFIG_X86) := hpet_example - -# Tell kbuild to always build the programs -always := $(hostprogs-y) diff --git a/Documentation/timers/hpet.txt b/Documentation/timers/hpet.txt index a484d2c109d7..895345ec513b 100644 --- a/Documentation/timers/hpet.txt +++ b/Documentation/timers/hpet.txt @@ -25,4 +25,4 @@ arch/x86/kernel/hpet.c. The driver provides a userspace API which resembles the API found in the RTC driver framework. An example user space program is provided in -file:Documentation/timers/hpet_example.c +file:samples/timers/hpet_example.c diff --git a/Documentation/timers/hpet_example.c b/Documentation/timers/hpet_example.c deleted file mode 100644 index 3ab4993d85e0..000000000000 --- a/Documentation/timers/hpet_example.c +++ /dev/null @@ -1,294 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <string.h> -#include <memory.h> -#include <malloc.h> -#include <time.h> -#include <ctype.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <signal.h> -#include <errno.h> -#include <sys/time.h> -#include <linux/hpet.h> - - -extern void hpet_open_close(int, const char **); -extern void hpet_info(int, const char **); -extern void hpet_poll(int, const char **); -extern void hpet_fasync(int, const char **); -extern void hpet_read(int, const char **); - -#include <sys/poll.h> -#include <sys/ioctl.h> - -struct hpet_command { - char *command; - void (*func)(int argc, const char ** argv); -} hpet_command[] = { - { - "open-close", - hpet_open_close - }, - { - "info", - hpet_info - }, - { - "poll", - hpet_poll - }, - { - "fasync", - hpet_fasync - }, -}; - -int -main(int argc, const char ** argv) -{ - unsigned int i; - - argc--; - argv++; - - if (!argc) { - fprintf(stderr, "-hpet: requires command\n"); - return -1; - } - - - for (i = 0; i < (sizeof (hpet_command) / sizeof (hpet_command[0])); i++) - if (!strcmp(argv[0], hpet_command[i].command)) { - argc--; - argv++; - fprintf(stderr, "-hpet: executing %s\n", - hpet_command[i].command); - hpet_command[i].func(argc, argv); - return 0; - } - - fprintf(stderr, "do_hpet: command %s not implemented\n", argv[0]); - - return -1; -} - -void -hpet_open_close(int argc, const char **argv) -{ - int fd; - - if (argc != 1) { - fprintf(stderr, "hpet_open_close: device-name\n"); - return; - } - - fd = open(argv[0], O_RDONLY); - if (fd < 0) - fprintf(stderr, "hpet_open_close: open failed\n"); - else - close(fd); - - return; -} - -void -hpet_info(int argc, const char **argv) -{ - struct hpet_info info; - int fd; - - if (argc != 1) { - fprintf(stderr, "hpet_info: device-name\n"); - return; - } - - fd = open(argv[0], O_RDONLY); - if (fd < 0) { - fprintf(stderr, "hpet_info: open of %s failed\n", argv[0]); - return; - } - - if (ioctl(fd, HPET_INFO, &info) < 0) { - fprintf(stderr, "hpet_info: failed to get info\n"); - goto out; - } - - fprintf(stderr, "hpet_info: hi_irqfreq 0x%lx hi_flags 0x%lx ", - info.hi_ireqfreq, info.hi_flags); - fprintf(stderr, "hi_hpet %d hi_timer %d\n", - info.hi_hpet, info.hi_timer); - -out: - close(fd); - return; -} - -void -hpet_poll(int argc, const char **argv) -{ - unsigned long freq; - int iterations, i, fd; - struct pollfd pfd; - struct hpet_info info; - struct timeval stv, etv; - struct timezone tz; - long usec; - - if (argc != 3) { - fprintf(stderr, "hpet_poll: device-name freq iterations\n"); - return; - } - - freq = atoi(argv[1]); - iterations = atoi(argv[2]); - - fd = open(argv[0], O_RDONLY); - - if (fd < 0) { - fprintf(stderr, "hpet_poll: open of %s failed\n", argv[0]); - return; - } - - if (ioctl(fd, HPET_IRQFREQ, freq) < 0) { - fprintf(stderr, "hpet_poll: HPET_IRQFREQ failed\n"); - goto out; - } - - if (ioctl(fd, HPET_INFO, &info) < 0) { - fprintf(stderr, "hpet_poll: failed to get info\n"); - goto out; - } - - fprintf(stderr, "hpet_poll: info.hi_flags 0x%lx\n", info.hi_flags); - - if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) { - fprintf(stderr, "hpet_poll: HPET_EPI failed\n"); - goto out; - } - - if (ioctl(fd, HPET_IE_ON, 0) < 0) { - fprintf(stderr, "hpet_poll, HPET_IE_ON failed\n"); - goto out; - } - - pfd.fd = fd; - pfd.events = POLLIN; - - for (i = 0; i < iterations; i++) { - pfd.revents = 0; - gettimeofday(&stv, &tz); - if (poll(&pfd, 1, -1) < 0) - fprintf(stderr, "hpet_poll: poll failed\n"); - else { - long data; - - gettimeofday(&etv, &tz); - usec = stv.tv_sec * 1000000 + stv.tv_usec; - usec = (etv.tv_sec * 1000000 + etv.tv_usec) - usec; - - fprintf(stderr, - "hpet_poll: expired time = 0x%lx\n", usec); - - fprintf(stderr, "hpet_poll: revents = 0x%x\n", - pfd.revents); - - if (read(fd, &data, sizeof(data)) != sizeof(data)) { - fprintf(stderr, "hpet_poll: read failed\n"); - } - else - fprintf(stderr, "hpet_poll: data 0x%lx\n", - data); - } - } - -out: - close(fd); - return; -} - -static int hpet_sigio_count; - -static void -hpet_sigio(int val) -{ - fprintf(stderr, "hpet_sigio: called\n"); - hpet_sigio_count++; -} - -void -hpet_fasync(int argc, const char **argv) -{ - unsigned long freq; - int iterations, i, fd, value; - sig_t oldsig; - struct hpet_info info; - - hpet_sigio_count = 0; - fd = -1; - - if ((oldsig = signal(SIGIO, hpet_sigio)) == SIG_ERR) { - fprintf(stderr, "hpet_fasync: failed to set signal handler\n"); - return; - } - - if (argc != 3) { - fprintf(stderr, "hpet_fasync: device-name freq iterations\n"); - goto out; - } - - fd = open(argv[0], O_RDONLY); - - if (fd < 0) { - fprintf(stderr, "hpet_fasync: failed to open %s\n", argv[0]); - return; - } - - - if ((fcntl(fd, F_SETOWN, getpid()) == 1) || - ((value = fcntl(fd, F_GETFL)) == 1) || - (fcntl(fd, F_SETFL, value | O_ASYNC) == 1)) { - fprintf(stderr, "hpet_fasync: fcntl failed\n"); - goto out; - } - - freq = atoi(argv[1]); - iterations = atoi(argv[2]); - - if (ioctl(fd, HPET_IRQFREQ, freq) < 0) { - fprintf(stderr, "hpet_fasync: HPET_IRQFREQ failed\n"); - goto out; - } - - if (ioctl(fd, HPET_INFO, &info) < 0) { - fprintf(stderr, "hpet_fasync: failed to get info\n"); - goto out; - } - - fprintf(stderr, "hpet_fasync: info.hi_flags 0x%lx\n", info.hi_flags); - - if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) { - fprintf(stderr, "hpet_fasync: HPET_EPI failed\n"); - goto out; - } - - if (ioctl(fd, HPET_IE_ON, 0) < 0) { - fprintf(stderr, "hpet_fasync, HPET_IE_ON failed\n"); - goto out; - } - - for (i = 0; i < iterations; i++) { - (void) pause(); - fprintf(stderr, "hpet_fasync: count = %d\n", hpet_sigio_count); - } - -out: - signal(SIGIO, oldsig); - - if (fd >= 0) - close(fd); - - return; -} diff --git a/Documentation/vDSO/.gitignore b/Documentation/vDSO/.gitignore deleted file mode 100644 index 133bf9ee986c..000000000000 --- a/Documentation/vDSO/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -vdso_test -vdso_standalone_test_x86 diff --git a/Documentation/vDSO/Makefile b/Documentation/vDSO/Makefile deleted file mode 100644 index b12e98770e1f..000000000000 --- a/Documentation/vDSO/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -ifndef CROSS_COMPILE -# vdso_test won't build for glibc < 2.16, so disable it -# hostprogs-y := vdso_test -hostprogs-$(CONFIG_X86) := vdso_standalone_test_x86 -vdso_standalone_test_x86-objs := vdso_standalone_test_x86.o parse_vdso.o -vdso_test-objs := parse_vdso.o vdso_test.o - -# Tell kbuild to always build the programs -always := $(hostprogs-y) - -HOSTCFLAGS := -I$(objtree)/usr/include -std=gnu99 -HOSTCFLAGS_vdso_standalone_test_x86.o := -fno-asynchronous-unwind-tables -fno-stack-protector -HOSTLOADLIBES_vdso_standalone_test_x86 := -nostdlib -ifeq ($(CONFIG_X86_32),y) -HOSTLOADLIBES_vdso_standalone_test_x86 += -lgcc_s -endif -endif diff --git a/Documentation/vDSO/parse_vdso.c b/Documentation/vDSO/parse_vdso.c deleted file mode 100644 index 1dbb4b87268f..000000000000 --- a/Documentation/vDSO/parse_vdso.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * parse_vdso.c: Linux reference vDSO parser - * Written by Andrew Lutomirski, 2011-2014. - * - * This code is meant to be linked in to various programs that run on Linux. - * As such, it is available with as few restrictions as possible. This file - * is licensed under the Creative Commons Zero License, version 1.0, - * available at http://creativecommons.org/publicdomain/zero/1.0/legalcode - * - * The vDSO is a regular ELF DSO that the kernel maps into user space when - * it starts a program. It works equally well in statically and dynamically - * linked binaries. - * - * This code is tested on x86. In principle it should work on any - * architecture that has a vDSO. - */ - -#include <stdbool.h> -#include <stdint.h> -#include <string.h> -#include <limits.h> -#include <elf.h> - -/* - * To use this vDSO parser, first call one of the vdso_init_* functions. - * If you've already parsed auxv, then pass the value of AT_SYSINFO_EHDR - * to vdso_init_from_sysinfo_ehdr. Otherwise pass auxv to vdso_init_from_auxv. - * Then call vdso_sym for each symbol you want. For example, to look up - * gettimeofday on x86_64, use: - * - * <some pointer> = vdso_sym("LINUX_2.6", "gettimeofday"); - * or - * <some pointer> = vdso_sym("LINUX_2.6", "__vdso_gettimeofday"); - * - * vdso_sym will return 0 if the symbol doesn't exist or if the init function - * failed or was not called. vdso_sym is a little slow, so its return value - * should be cached. - * - * vdso_sym is threadsafe; the init functions are not. - * - * These are the prototypes: - */ -extern void vdso_init_from_auxv(void *auxv); -extern void vdso_init_from_sysinfo_ehdr(uintptr_t base); -extern void *vdso_sym(const char *version, const char *name); - - -/* And here's the code. */ -#ifndef ELF_BITS -# if ULONG_MAX > 0xffffffffUL -# define ELF_BITS 64 -# else -# define ELF_BITS 32 -# endif -#endif - -#define ELF_BITS_XFORM2(bits, x) Elf##bits##_##x -#define ELF_BITS_XFORM(bits, x) ELF_BITS_XFORM2(bits, x) -#define ELF(x) ELF_BITS_XFORM(ELF_BITS, x) - -static struct vdso_info -{ - bool valid; - - /* Load information */ - uintptr_t load_addr; - uintptr_t load_offset; /* load_addr - recorded vaddr */ - - /* Symbol table */ - ELF(Sym) *symtab; - const char *symstrings; - ELF(Word) *bucket, *chain; - ELF(Word) nbucket, nchain; - - /* Version table */ - ELF(Versym) *versym; - ELF(Verdef) *verdef; -} vdso_info; - -/* Straight from the ELF specification. */ -static unsigned long elf_hash(const unsigned char *name) -{ - unsigned long h = 0, g; - while (*name) - { - h = (h << 4) + *name++; - if (g = h & 0xf0000000) - h ^= g >> 24; - h &= ~g; - } - return h; -} - -void vdso_init_from_sysinfo_ehdr(uintptr_t base) -{ - size_t i; - bool found_vaddr = false; - - vdso_info.valid = false; - - vdso_info.load_addr = base; - - ELF(Ehdr) *hdr = (ELF(Ehdr)*)base; - if (hdr->e_ident[EI_CLASS] != - (ELF_BITS == 32 ? ELFCLASS32 : ELFCLASS64)) { - return; /* Wrong ELF class -- check ELF_BITS */ - } - - ELF(Phdr) *pt = (ELF(Phdr)*)(vdso_info.load_addr + hdr->e_phoff); - ELF(Dyn) *dyn = 0; - - /* - * We need two things from the segment table: the load offset - * and the dynamic table. - */ - for (i = 0; i < hdr->e_phnum; i++) - { - if (pt[i].p_type == PT_LOAD && !found_vaddr) { - found_vaddr = true; - vdso_info.load_offset = base - + (uintptr_t)pt[i].p_offset - - (uintptr_t)pt[i].p_vaddr; - } else if (pt[i].p_type == PT_DYNAMIC) { - dyn = (ELF(Dyn)*)(base + pt[i].p_offset); - } - } - - if (!found_vaddr || !dyn) - return; /* Failed */ - - /* - * Fish out the useful bits of the dynamic table. - */ - ELF(Word) *hash = 0; - vdso_info.symstrings = 0; - vdso_info.symtab = 0; - vdso_info.versym = 0; - vdso_info.verdef = 0; - for (i = 0; dyn[i].d_tag != DT_NULL; i++) { - switch (dyn[i].d_tag) { - case DT_STRTAB: - vdso_info.symstrings = (const char *) - ((uintptr_t)dyn[i].d_un.d_ptr - + vdso_info.load_offset); - break; - case DT_SYMTAB: - vdso_info.symtab = (ELF(Sym) *) - ((uintptr_t)dyn[i].d_un.d_ptr - + vdso_info.load_offset); - break; - case DT_HASH: - hash = (ELF(Word) *) - ((uintptr_t)dyn[i].d_un.d_ptr - + vdso_info.load_offset); - break; - case DT_VERSYM: - vdso_info.versym = (ELF(Versym) *) - ((uintptr_t)dyn[i].d_un.d_ptr - + vdso_info.load_offset); - break; - case DT_VERDEF: - vdso_info.verdef = (ELF(Verdef) *) - ((uintptr_t)dyn[i].d_un.d_ptr - + vdso_info.load_offset); - break; - } - } - if (!vdso_info.symstrings || !vdso_info.symtab || !hash) - return; /* Failed */ - - if (!vdso_info.verdef) - vdso_info.versym = 0; - - /* Parse the hash table header. */ - vdso_info.nbucket = hash[0]; - vdso_info.nchain = hash[1]; - vdso_info.bucket = &hash[2]; - vdso_info.chain = &hash[vdso_info.nbucket + 2]; - - /* That's all we need. */ - vdso_info.valid = true; -} - -static bool vdso_match_version(ELF(Versym) ver, - const char *name, ELF(Word) hash) -{ - /* - * This is a helper function to check if the version indexed by - * ver matches name (which hashes to hash). - * - * The version definition table is a mess, and I don't know how - * to do this in better than linear time without allocating memory - * to build an index. I also don't know why the table has - * variable size entries in the first place. - * - * For added fun, I can't find a comprehensible specification of how - * to parse all the weird flags in the table. - * - * So I just parse the whole table every time. - */ - - /* First step: find the version definition */ - ver &= 0x7fff; /* Apparently bit 15 means "hidden" */ - ELF(Verdef) *def = vdso_info.verdef; - while(true) { - if ((def->vd_flags & VER_FLG_BASE) == 0 - && (def->vd_ndx & 0x7fff) == ver) - break; - - if (def->vd_next == 0) - return false; /* No definition. */ - - def = (ELF(Verdef) *)((char *)def + def->vd_next); - } - - /* Now figure out whether it matches. */ - ELF(Verdaux) *aux = (ELF(Verdaux)*)((char *)def + def->vd_aux); - return def->vd_hash == hash - && !strcmp(name, vdso_info.symstrings + aux->vda_name); -} - -void *vdso_sym(const char *version, const char *name) -{ - unsigned long ver_hash; - if (!vdso_info.valid) - return 0; - - ver_hash = elf_hash(version); - ELF(Word) chain = vdso_info.bucket[elf_hash(name) % vdso_info.nbucket]; - - for (; chain != STN_UNDEF; chain = vdso_info.chain[chain]) { - ELF(Sym) *sym = &vdso_info.symtab[chain]; - - /* Check for a defined global or weak function w/ right name. */ - if (ELF64_ST_TYPE(sym->st_info) != STT_FUNC) - continue; - if (ELF64_ST_BIND(sym->st_info) != STB_GLOBAL && - ELF64_ST_BIND(sym->st_info) != STB_WEAK) - continue; - if (sym->st_shndx == SHN_UNDEF) - continue; - if (strcmp(name, vdso_info.symstrings + sym->st_name)) - continue; - - /* Check symbol version. */ - if (vdso_info.versym - && !vdso_match_version(vdso_info.versym[chain], - version, ver_hash)) - continue; - - return (void *)(vdso_info.load_offset + sym->st_value); - } - - return 0; -} - -void vdso_init_from_auxv(void *auxv) -{ - ELF(auxv_t) *elf_auxv = auxv; - for (int i = 0; elf_auxv[i].a_type != AT_NULL; i++) - { - if (elf_auxv[i].a_type == AT_SYSINFO_EHDR) { - vdso_init_from_sysinfo_ehdr(elf_auxv[i].a_un.a_val); - return; - } - } - - vdso_info.valid = false; -} diff --git a/Documentation/vDSO/vdso_standalone_test_x86.c b/Documentation/vDSO/vdso_standalone_test_x86.c deleted file mode 100644 index 93b0ebf8cc38..000000000000 --- a/Documentation/vDSO/vdso_standalone_test_x86.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * vdso_test.c: Sample code to test parse_vdso.c on x86 - * Copyright (c) 2011-2014 Andy Lutomirski - * Subject to the GNU General Public License, version 2 - * - * You can amuse yourself by compiling with: - * gcc -std=gnu99 -nostdlib - * -Os -fno-asynchronous-unwind-tables -flto -lgcc_s - * vdso_standalone_test_x86.c parse_vdso.c - * to generate a small binary. On x86_64, you can omit -lgcc_s - * if you want the binary to be completely standalone. - */ - -#include <sys/syscall.h> -#include <sys/time.h> -#include <unistd.h> -#include <stdint.h> - -extern void *vdso_sym(const char *version, const char *name); -extern void vdso_init_from_sysinfo_ehdr(uintptr_t base); -extern void vdso_init_from_auxv(void *auxv); - -/* We need a libc functions... */ -int strcmp(const char *a, const char *b) -{ - /* This implementation is buggy: it never returns -1. */ - while (*a || *b) { - if (*a != *b) - return 1; - if (*a == 0 || *b == 0) - return 1; - a++; - b++; - } - - return 0; -} - -/* ...and two syscalls. This is x86-specific. */ -static inline long x86_syscall3(long nr, long a0, long a1, long a2) -{ - long ret; -#ifdef __x86_64__ - asm volatile ("syscall" : "=a" (ret) : "a" (nr), - "D" (a0), "S" (a1), "d" (a2) : - "cc", "memory", "rcx", - "r8", "r9", "r10", "r11" ); -#else - asm volatile ("int $0x80" : "=a" (ret) : "a" (nr), - "b" (a0), "c" (a1), "d" (a2) : - "cc", "memory" ); -#endif - return ret; -} - -static inline long linux_write(int fd, const void *data, size_t len) -{ - return x86_syscall3(__NR_write, fd, (long)data, (long)len); -} - -static inline void linux_exit(int code) -{ - x86_syscall3(__NR_exit, code, 0, 0); -} - -void to_base10(char *lastdig, time_t n) -{ - while (n) { - *lastdig = (n % 10) + '0'; - n /= 10; - lastdig--; - } -} - -__attribute__((externally_visible)) void c_main(void **stack) -{ - /* Parse the stack */ - long argc = (long)*stack; - stack += argc + 2; - - /* Now we're pointing at the environment. Skip it. */ - while(*stack) - stack++; - stack++; - - /* Now we're pointing at auxv. Initialize the vDSO parser. */ - vdso_init_from_auxv((void *)stack); - - /* Find gettimeofday. */ - typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz); - gtod_t gtod = (gtod_t)vdso_sym("LINUX_2.6", "__vdso_gettimeofday"); - - if (!gtod) - linux_exit(1); - - struct timeval tv; - long ret = gtod(&tv, 0); - - if (ret == 0) { - char buf[] = "The time is .000000\n"; - to_base10(buf + 31, tv.tv_sec); - to_base10(buf + 38, tv.tv_usec); - linux_write(1, buf, sizeof(buf) - 1); - } else { - linux_exit(ret); - } - - linux_exit(0); -} - -/* - * This is the real entry point. It passes the initial stack into - * the C entry point. - */ -asm ( - ".text\n" - ".global _start\n" - ".type _start,@function\n" - "_start:\n\t" -#ifdef __x86_64__ - "mov %rsp,%rdi\n\t" - "jmp c_main" -#else - "push %esp\n\t" - "call c_main\n\t" - "int $3" -#endif - ); diff --git a/Documentation/vDSO/vdso_test.c b/Documentation/vDSO/vdso_test.c deleted file mode 100644 index 8daeb7d7032c..000000000000 --- a/Documentation/vDSO/vdso_test.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * vdso_test.c: Sample code to test parse_vdso.c - * Copyright (c) 2014 Andy Lutomirski - * Subject to the GNU General Public License, version 2 - * - * Compile with: - * gcc -std=gnu99 vdso_test.c parse_vdso.c - * - * Tested on x86, 32-bit and 64-bit. It may work on other architectures, too. - */ - -#include <stdint.h> -#include <elf.h> -#include <stdio.h> -#include <sys/auxv.h> -#include <sys/time.h> - -extern void *vdso_sym(const char *version, const char *name); -extern void vdso_init_from_sysinfo_ehdr(uintptr_t base); -extern void vdso_init_from_auxv(void *auxv); - -int main(int argc, char **argv) -{ - unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR); - if (!sysinfo_ehdr) { - printf("AT_SYSINFO_EHDR is not present!\n"); - return 0; - } - - vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR)); - - /* Find gettimeofday. */ - typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz); - gtod_t gtod = (gtod_t)vdso_sym("LINUX_2.6", "__vdso_gettimeofday"); - - if (!gtod) { - printf("Could not find __vdso_gettimeofday\n"); - return 1; - } - - struct timeval tv; - long ret = gtod(&tv, 0); - - if (ret == 0) { - printf("The time is %lld.%06lld\n", - (long long)tv.tv_sec, (long long)tv.tv_usec); - } else { - printf("__vdso_gettimeofday failed\n"); - } - - return 0; -} diff --git a/Documentation/watchdog/Makefile b/Documentation/watchdog/Makefile deleted file mode 100644 index 6018f45f2471..000000000000 --- a/Documentation/watchdog/Makefile +++ /dev/null @@ -1 +0,0 @@ -subdir-y := src diff --git a/Documentation/watchdog/src/.gitignore b/Documentation/watchdog/src/.gitignore deleted file mode 100644 index ac90997dba93..000000000000 --- a/Documentation/watchdog/src/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -watchdog-simple -watchdog-test diff --git a/Documentation/watchdog/src/Makefile b/Documentation/watchdog/src/Makefile deleted file mode 100644 index 4a892c304983..000000000000 --- a/Documentation/watchdog/src/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# List of programs to build -hostprogs-y := watchdog-simple watchdog-test - -# Tell kbuild to always build the programs -always := $(hostprogs-y) diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c deleted file mode 100644 index ba45803a2216..000000000000 --- a/Documentation/watchdog/src/watchdog-simple.c +++ /dev/null @@ -1,24 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> - -int main(void) -{ - int fd = open("/dev/watchdog", O_WRONLY); - int ret = 0; - if (fd == -1) { - perror("watchdog"); - exit(EXIT_FAILURE); - } - while (1) { - ret = write(fd, "\0", 1); - if (ret != 1) { - ret = -1; - break; - } - sleep(10); - } - close(fd); - return ret; -} diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c deleted file mode 100644 index 6983d05097e2..000000000000 --- a/Documentation/watchdog/src/watchdog-test.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * Watchdog Driver Test Program - */ - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <linux/types.h> -#include <linux/watchdog.h> - -int fd; -const char v = 'V'; - -/* - * This function simply sends an IOCTL to the driver, which in turn ticks - * the PC Watchdog card to reset its internal timer so it doesn't trigger - * a computer reset. - */ -static void keep_alive(void) -{ - int dummy; - - printf("."); - ioctl(fd, WDIOC_KEEPALIVE, &dummy); -} - -/* - * The main program. Run the program with "-d" to disable the card, - * or "-e" to enable the card. - */ - -static void term(int sig) -{ - int ret = write(fd, &v, 1); - - close(fd); - if (ret < 0) - printf("\nStopping watchdog ticks failed (%d)...\n", errno); - else - printf("\nStopping watchdog ticks...\n"); - exit(0); -} - -int main(int argc, char *argv[]) -{ - int flags; - unsigned int ping_rate = 1; - int ret; - - setbuf(stdout, NULL); - - fd = open("/dev/watchdog", O_WRONLY); - - if (fd == -1) { - printf("Watchdog device not enabled.\n"); - exit(-1); - } - - if (argc > 1) { - if (!strncasecmp(argv[1], "-d", 2)) { - flags = WDIOS_DISABLECARD; - ioctl(fd, WDIOC_SETOPTIONS, &flags); - printf("Watchdog card disabled.\n"); - goto end; - } else if (!strncasecmp(argv[1], "-e", 2)) { - flags = WDIOS_ENABLECARD; - ioctl(fd, WDIOC_SETOPTIONS, &flags); - printf("Watchdog card enabled.\n"); - goto end; - } else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) { - flags = atoi(argv[2]); - ioctl(fd, WDIOC_SETTIMEOUT, &flags); - printf("Watchdog timeout set to %u seconds.\n", flags); - goto end; - } else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) { - ping_rate = strtoul(argv[2], NULL, 0); - printf("Watchdog ping rate set to %u seconds.\n", ping_rate); - } else { - printf("-d to disable, -e to enable, -t <n> to set " \ - "the timeout,\n-p <n> to set the ping rate, and \n"); - printf("run by itself to tick the card.\n"); - goto end; - } - } - - printf("Watchdog Ticking Away!\n"); - - signal(SIGINT, term); - - while(1) { - keep_alive(); - sleep(ping_rate); - } -end: - ret = write(fd, &v, 1); - if (ret < 0) - printf("Stopping watchdog ticks failed (%d)...\n", errno); - close(fd); - return 0; -} diff --git a/Documentation/watchdog/watchdog-api.txt b/Documentation/watchdog/watchdog-api.txt index b3a701f48118..0e62ba33b7fb 100644 --- a/Documentation/watchdog/watchdog-api.txt +++ b/Documentation/watchdog/watchdog-api.txt @@ -37,7 +37,7 @@ activates as soon as /dev/watchdog is opened and will reboot unless the watchdog is pinged within a certain time, this time is called the timeout or margin. The simplest way to ping the watchdog is to write some data to the device. So a very simple watchdog daemon would look -like this source file: see Documentation/watchdog/src/watchdog-simple.c +like this source file: see samples/watchdog/watchdog-simple.c A more advanced driver could for example check that a HTTP server is still responding before doing the write call to ping the watchdog. diff --git a/Documentation/watchdog/wdt.txt b/Documentation/watchdog/wdt.txt index 061c2e35384f..ed2f0b860869 100644 --- a/Documentation/watchdog/wdt.txt +++ b/Documentation/watchdog/wdt.txt @@ -47,4 +47,4 @@ The external event interfaces on the WDT boards are not currently supported. Minor numbers are however allocated for it. -Example Watchdog Driver: see Documentation/watchdog/src/watchdog-simple.c +Example Watchdog Driver: see samples/watchdog/watchdog-simple.c |