| /linux/Documentation/devicetree/bindings/misc/ |
| H A D | intel,ixp4xx-ahb-queue-manager.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/misc/intel,ixp4xx-ahb-queue-manager.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Intel IXP4xx AHB Queue Manager
11 - Linus Walleij <linusw@kernel.org>
14 The IXP4xx AHB Queue Manager maintains queues as circular buffers in
18 queues from the queue manager with foo-queue = <&qmgr N> where the
19 &qmgr is a phandle to the queue manager and N is the queue resource
20 number. The queue resources available and their specific purpose
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| /linux/tools/bpf/bpftool/Documentation/ |
| H A D | bpftool-map.rst | 1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 bpftool-map
6 ---
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| /linux/tools/perf/Documentation/ |
| H A D | perf-config.txt | 1 perf-config(1)
5 ----
6 perf-config - Get and set variables in a configuration file.
9 ---
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| /linux/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ |
| H A D | fifo.json | 17 "matchPattern": "qdisc bfifo 1: root.*limit [0-9]+b",
38 "matchPattern": "qdisc pfifo 1: root.*limit [0-9]+p",
59 "matchPattern": "qdisc bfifo ffff: root.*limit [0-9]+b",
67 "name": "Add bfifo qdisc on egress with queue size of 3000 bytes",
88 "name": "Add pfifo qdisc on egress with queue size of 3000 packets",
123 "matchPattern": "qdisc bfifo 10000: root.*limit [0-9]+b",
170 "name": "Replace bfifo qdisc on egress with new queue size",
193 "name": "Replace pfifo qdisc on egress with new queue size",
216 "name": "Add bfifo qdisc on egress with queue size in invalid format",
226 "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root bfifo limit foo-bar",
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| /linux/drivers/net/wireless/ath/ |
| H A D | ath.h | 2 * Copyright (c) 2008-2009 Atheros Communications Inc.
30 * and station state to short-circuit node lookups on rx.
119 * struct ath_ops - Register read/write operations
195 return common->ps_ops; in ath_ps_ops()
234 * enum ath_debug_level - atheros wireless debug level
237 * @ATH_DBG_QUEUE: hardware queue management
252 * used exclusively for WLAN-BT coexistence starting from
262 * modifying debug level states -- but this is typically done through a
298 if ((common)->debug_mask & ATH_DBG_##dbg_mask) \
302 #define ATH_DBG_WARN(foo, arg...) WARN(foo, arg) argument
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| /linux/Documentation/filesystems/ |
| H A D | inotify.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Inotify - A Powerful yet Simple File Change Notification System
13 - Deleted obsoleted interface, just refer to manpages for user interface.
29 What is the design decision behind using an-fd-per-instance as opposed to
30 an fd-per-watch?
33 An fd-per-watch quickly consumes more file descriptors than are allowed,
35 select()-able. Yes, root can bump the per-process fd limit and yes, users
38 spaces is thus sensible. The current design is what user-space developers
41 thousand times is silly. If we can implement user-space's preferences
42 cleanly--and we can, the idr layer makes stuff like this trivial--then we
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| /linux/rust/pin-init/src/ |
| H A D | lib.rs | 1 // SPDX-License-Identifier: Apache-2.0 OR MIT
3 //! Library to safely and fallibly initialize pinned `struct`s using in-place constructors.
7 //! It also allows in-place initialization of big `struct`s that would otherwise produce a stack
10 //! This library's main use-case is in [Rust-for-Linux]. Although this version can be used
13 //! There are cases when you want to in-place initialize a struct. For example when it is very big
18 //! <https://rust-fo
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| /linux/Documentation/networking/ |
| H A D | snmp_counter.rst | 17 .. _RFC1213 ipInReceives: https://tools.ietf.org/html/rfc1213#page-26
30 .. _RFC1213 ipInDelivers: https://tools.ietf.org/html/rfc1213#page-28
41 .. _RFC1213 ipOutRequests: https://tools.ietf.org/html/rfc1213#page-28
60 .. _Explicit Congestion Notification: https://tools.ietf.org/html/rfc3168#page-6
73 .. _RFC1213 ipInHdrErrors: https://tools.ietf.org/html/rfc1213#page-27
81 .. _RFC1213 ipInAddrErrors: https://tools.ietf.org/html/rfc1213#page-27
98 .. _RFC1213 ipInUnknownProtos: https://tools.ietf.org/html/rfc1213#page-27
111 .. _RFC1213 ipInDiscards: https://tools.ietf.org/html/rfc1213#page-28
118 .. _RFC1213 ipOutDiscards: https://tools.ietf.org/html/rfc1213#page-28
125 .. _RFC1213 ipOutNoRoutes: https://tools.ietf.org/html/rfc1213#page-29
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| H A D | filter.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 .. _networking-filter:
10 ------
17 ------------
24 BPF allows a user-space program to attach a filter onto any socket and
49 The biggest user of this construct might be libpcap. Issuing a high-level
50 filter command like `tcpdump -i em1 port 22` passes through the libpcap
52 via SO_ATTACH_FILTER to the kernel. `tcpdump -i em1 port 22 -ddd`
57 qdisc layer, SECCOMP-BPF (SECure COMPuting [1]_), and lots of other places
60 .. [1] Documentation/userspace-api/seccomp_filter.rst
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| /linux/net/unix/ |
| H A D | garbage.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
13 * - object w/ a bit
14 * - free list
18 * - explicit stack instead of recursion
19 * - tail recurse on first born instead of immediate push/pop
20 * - we gather the stuff that should not be killed into tree
25 * - don't just push entire root set; process in place
32 * of foo to bar and vice versa. Current code chokes on that.
38 * upon the beginning and unmark non-junk ones.
56 * parents (->gc_tree).
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| /linux/ipc/ |
| H A D | mqueue.c | 1 // SPDX-License-Identifier: GPL-2.0
69 * Accesses to a message queue are synchronized by acquiring info->lock.
72 * - The actual wakeup of a sleeping task is performed using the wake_q
73 * framework. info->lock is already released when wake_up_q is called.
74 * - The exit codepaths after sleeping check ext_wait_queue->state without
76 * acquiring info->lock.
93 * ->state = STATE_READY (reordered)
101 * the smp_store_release() that does ->state = STATE_READY.
115 * receiver->msg = message; (reordered)
119 * 3) There is intentionally no barrier when setting current->state
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| /linux/net/sunrpc/ |
| H A D | rpc_pipe.c | 1 // SPDX-License-Identifier: GPL-2.0-only
72 msg = list_entry(head->next, struct rpc_pipe_msg, list); in rpc_purge_list()
73 list_del_init(&msg->list); in rpc_purge_list()
74 msg->errno = err; in rpc_purge_list()
91 spin_lock(&pipe->lock); in rpc_timeout_upcall_queue()
92 destroy_msg = pipe->ops->destroy_msg; in rpc_timeout_upcall_queue()
93 if (pipe->nreaders == 0) { in rpc_timeout_upcall_queue()
94 list_splice_init(&pipe->pipe, &free_list); in rpc_timeout_upcall_queue()
95 pipe->pipelen = 0; in rpc_timeout_upcall_queue()
97 dentry = dget(pipe->dentry); in rpc_timeout_upcall_queue()
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| /linux/Documentation/doc-guide/ |
| H A D | sphinx.rst | 12 .. _Sphinx: http://www.sphinx-doc.org/
16 documentation comments, or kernel-doc comments, from source files. Usually these
18 kernel-doc comments have some special structure and formatting, but beyond that
34 :ref:`sphinx-pre-install` for further details.
42 Sphinx inside a virtual environment, using ``virtualenv-3``
50 (sphinx_latest) $ pip install -r Documentation/sphinx/requirements.txt
58 ------------
69 --------------------
80 ------------------------
89 The former was the only option for pre-6.1 kernel documentation and it
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| /linux/tools/testing/selftests/net/mptcp/ |
| H A D | mptcp_connect.c | 1 // SPDX-License-Identifier: GPL-2.0
113 fprintf(stderr, "Usage: mptcp_connect [-6] [-c cmsg] [-f offset] [-i file] [-I num] [-j] [-l] " in die_usage()
114 "[-m mode] [-M mark] [-o option] [-p port] [-P mode] [-r num] [-R num] " in die_usage()
115 "[-s MPTCP|TCP] [-S num] [-t num] [-T num] [-w sec] connect_address\n"); in die_usage()
116 fprintf(stderr, "\t-6 use ipv6\n"); in die_usage()
117 fprintf(stderr, "\t-c cmsg -- test cmsg type <cmsg>\n"); in die_usage()
118 fprintf(stderr, "\t-f offset -- stop the I/O after receiving and sending the specified amount " in die_usage()
119 "of bytes. If there are unread bytes in the receive queue, that will cause a MPTCP " in die_usage()
122 fprintf(stderr, "\t-i file -- read the data to send from the given file instead of stdin"); in die_usage()
123 fprintf(stderr, "\t-I num -- repeat the transfer 'num' times. In listen mode accepts num " in die_usage()
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| /linux/drivers/net/ethernet/nvidia/ |
| H A D | forcedeth.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * engineered documentation written by Carl-Daniel Hailfinger
15 * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
50 #include <linux/dma-mapping.h>
73 #define DEV_HAS_MSI_X 0x0000080 /* device supports MSI-X */
483 * - DESC_VER_1: Original
484 * - DESC_VER_2: support for jumbo frames.
485 * - DESC_VER_3: 64-bit format.
568 /* MSI/MSI-X defines */
638 u64 tx_bytes; /* should be ifconfig->tx_bytes + 4*tx_packets */
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| /linux/Documentation/ |
| H A D | memory-barriers.txt | 19 documentation at tools/memory-model/. Nevertheless, even this memory
37 Note also that it is possible that a barrier may be a no-op for an
48 - Device operations.
49 - Guarantees.
53 - Varieties of memory barrier.
54 - What may not be assumed about memory barriers?
55 - Address-dependency barriers (historical).
56 - Control dependencies.
57 - SMP barrier pairing.
58 - Examples of memory barrier sequences.
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| /linux/fs/xfs/ |
| H A D | xfs_log.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
88 atomic64_sub(bytes, &head->grant); in xlog_grant_sub_space()
96 atomic64_add(bytes, &head->grant); in xlog_grant_add_space()
103 atomic64_set(&head->grant, 0); in xlog_grant_head_init()
104 INIT_LIST_HEAD(&head->waiters); in xlog_grant_head_init()
105 spin_lock_init(&head->lock); in xlog_grant_head_init()
116 xlog_grant_sub_space(&log->l_reserve_head, diff); in xlog_grant_return_space()
117 xlog_grant_sub_space(&log->l_write_head, diff); in xlog_grant_return_space()
136 free_bytes = log->l_logsize - READ_ONCE(log->l_tail_space) - in xlog_grant_space_left()
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| /linux/arch/x86/kernel/ |
| H A D | alternative.c | 1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <asm/text-patching.h>
12 #include <asm/insn-eval.h>
21 #define MAX_PATCH_LEN (255-1)
42 __setup("debug-alternative", debug_alt);
51 __setup("noreplace-smp", setup_noreplace_smp);
68 for (j = 0; j < (len) - 1; j++) \
128 void *tmp = krealloc(pages->pages, (pages->num+1) * sizeof(void *), in __its_alloc()
133 pages->pages = tmp; in __its_alloc()
134 pages->pages[pages->num++] = page; in __its_alloc()
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| /linux/security/smack/ |
| H A D | smack_lsm.c | 1 // SPDX-License-Identifier: GPL-2.0-only
8 * Casey Schaufler <casey@schaufler-ca.com>
11 * Copyright (C) 2007 Casey Schaufler <casey@schaufler-ca.com>
12 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
13 * Paul Moore <paul@paul-moore.com>
58 * SMACK64 - for access control,
59 * SMACK64TRANSMUTE - labe
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| /linux/Documentation/translations/sp_SP/ |
| H A D | memory-barriers.txt | 2 This is a version of Documentation/memory-barriers.txt translated into
35 consistencia de memoria formal y documentación en tools/memory-model/. Sin
53 Tenga en cuenta también que es posible que una barrera no valga (sea no-op)
63 - Operaciones del dispositivo.
64 - Garantías.
68 - Variedades de barrera de memoria.
69 - ¿Qué no se puede asumir sobre las barreras de memoria?
70 - Barreras de dirección-dependencia (históricas).
71 - Dependencias de control.
72 - Emparejamiento de barreras smp.
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| /linux/net/ |
| H A D | socket.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
25 * Jeff Uphoff : Made max number of sockets command-line
47 * protocol-independent
55 #include <linux/bpf-cgroup.h>
142 struct socket *sock = f->private_data; in sock_show_fdinfo()
143 const struct proto_ops *ops = READ_ONCE(sock->op in sock_show_fdinfo()
366 init_once(void * foo) init_once() argument
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| /linux/drivers/net/ethernet/natsemi/ |
| H A D | ns83820.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Questions/comments/discussion to linux-ns83820@kvack.org.
16 * 20010414 0.1 - created
17 * 20010622 0.2 - basic rx and tx.
18 * 20010711 0.3 - added duplex and link state detection support.
19 * 20010713 0.4 - zero copy, no hangs.
20 * 0.5 - 64 bit dma support (davem will hate me for this)
21 * - disable jumbo frames to avoid tx hangs
22 * - work around tx deadlocks on my 1.02 card via
24 * 20010810 0.6 - use pci dma api for ringbuffers, work on ia64
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| /linux/kernel/module/ |
| H A D | main.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
79 /* Work queue for freeing init sections in success case */
85 .addr_min = -1UL,
106 if (min < tree->data_addr_min) in __mod_update_bounds()
107 tree->data_addr_min = min; in __mod_update_bounds()
108 if (max > tree->data_addr_max) in __mod_update_bounds()
109 tree->data_addr_max = max; in __mod_update_bounds()
113 if (min < tree->addr_min) in __mod_update_bounds()
114 tree->addr_min = min; in __mod_update_bounds()
115 if (max > tree->addr_max) in __mod_update_bounds()
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| /linux/drivers/net/ethernet/broadcom/ |
| H A D | tg3.c | 7 * Copyright (C) 2005-2016 Broadcom Corporation.
8 * Copyright (C) 2016-2017 Broadcom Limited.
14 * Copyright (C) 2000-2016 Broadcom Corporation.
15 * Copyright (C) 2016-2017 Broadcom Ltd.
52 #include <linux/dma-mapping.h>
56 #include <linux/hwmon-sysfs.h>
94 _tg3_flag(TG3_FLAG_##flag, (tp)->tg3_flags)
96 _tg3_flag_set(TG3_FLAG_##flag, (tp)->tg3_flags)
98 _tg3_flag_clear(TG3_FLAG_##flag, (tp)->tg3_flags)
124 * and dev->tx_timeout() should be called to fix the problem
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