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/linux/Documentation/userspace-api/netlink/
H A Dgenetlink-legacy.rst1 .. SPDX-License-Identifier: BSD-3-Clause
9 the ``genetlink-legacy`` protocol level.
15 -------
29 --------------------
31 New Netlink families should use ``multi-attr`` to define arrays.
33 define array types reusing attribute type to carry information.
35 For reference the ``multi-attr`` array may look like this::
37 [ARRAY-ATTR]
41 [SOME-OTHER-ATTR]
42 [ARRAY-ATTR]
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H A Dspecs.rst1 .. SPDX-License-Identifier: BSD-3-Clause
17 - the C uAPI header
18 …- documentation of the protocol as a ReST file - see :ref:`Documentation/networking/netlink_spec/i…
19 - policy tables for input attribute validation
20 - operation tables
25 See :doc:`intro-specs` for a practical starting guide.
28 ``((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)``
40 - ``genetlink`` - most streamlined, should be used by all new families
41 - ``genetlink-c`` - superset of ``genetlink`` with extra attributes allowing
45 - ``genetlink-legacy`` - Generic Netlink catch all schema supporting quirks of
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/linux/net/ethtool/
H A Dbitset.c1 // SPDX-License-Identifier: GPL-2.0-only
8 /* Some bitmaps are internally represented as an array of unsigned long, some
9 * as an array of u32 (some even as single u32 for now). To avoid the need of
17 return ~(u32)0 >> (32 - n % 32); in ethnl_lower_bits()
26 * ethnl_bitmap32_clear() - Clear u32 based bitmap
78 * ethnl_bitmap32_not_zero() - Check if any bit is set in an interval
83 * Return: true if there is non-zero bit with index @start <= i < @end,
108 (end_word - start_word) * sizeof(u32))) in ethnl_bitmap32_not_zero()
116 * ethnl_bitmap32_update() - Modify u32 based bitmap according to value/mask
146 nbits -= 32; in ethnl_bitmap32_update()
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H A Dstats.c1 // SPDX-License-Identifier: GPL-2.0-only
35 [ETHTOOL_STATS_ETH_PHY] = "eth-phy",
36 [ETHTOOL_STATS_ETH_MAC] = "eth-mac",
37 [ETHTOOL_STATS_ETH_CTRL] = "eth-ctrl",
110 err = ethnl_update_bitset(req_info->stat_mask, __ETHTOOL_STATS_CNT, in stats_parse_request()
118 return -EINVAL; in stats_parse_request()
124 req_info->src = src; in stats_parse_request()
135 enum ethtool_mac_stats_src src = req_info->src; in stats_prepare_data()
136 struct net_device *dev = reply_base->dev; in stats_prepare_data()
137 struct nlattr **tb = info->attrs; in stats_prepare_data()
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H A Dnetlink.h1 /* SPDX-License-Identifier: GPL-2.0-only */
14 const struct nlattr *nest, struct net *net,
28 * ethnl_strz_size() - calculate attribute length for fixed size string
39 * ethnl_put_strz() - put string attribute with fixed size string
56 return -EMSGSIZE; in ethnl_put_strz()
64 * ethnl_update_u32() - update u32 value from NLA_U32 attribute
90 * ethnl_update_u8() - update u8 value from NLA_U8 attribute
116 * ethnl_update_bool32() - update u32 used as bool from NLA_U8 attribute
142 * ethnl_update_bool() - updateb bool used as bool from NLA_U8 attribute
168 * ethnl_update_binary() - update binary data from NLA_BINARY attribute
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/linux/Documentation/netlink/specs/
H A Dnlctrl.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
4 protocol: genetlink-legacy
5 uapi-header: linux/genetlink.h
8 genetlink meta-family that exposes information about all genetlink
12 -
13 name: op-flags
15 enum-name:
17 - admin-perm
18 - cmd-cap-do
19 - cmd-cap-dump
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H A Dteam.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
5 protocol: genetlink-legacy
10 c-family-name: team-genl-name
11 c-version-name: team-genl-version
12 kernel-policy: global
13 uapi-header: linux/if_team.h
16 -
17 name: string-max-len
20 -
21 name: genl-change-event-mc-grp-name
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H A Dnetdev.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
9 -
11 name: xdp-act
12 render-max: true
14 -
19 -
23 -
24 name: ndo-xmit
27 -
28 name: xsk-zerocopy
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/linux/Documentation/netlink/
H A Dgenetlink.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_-]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
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/linux/drivers/net/ethernet/intel/fm10k/
H A Dfm10k_tlv.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2019 Intel Corporation. */
7 * fm10k_tlv_msg_init - Initialize message block for TLV data storage
25 * fm10k_tlv_attr_put_null_string - Place null terminated string on message
76 * fm10k_tlv_attr_get_null_string - Get null terminated string from attribute
81 * it in the array pointed by string. It will return success if provided
95 while (len--) in fm10k_tlv_attr_get_null_string()
102 * fm10k_tlv_attr_put_mac_vlan - Store MAC/VLAN attribute in message
140 * fm10k_tlv_attr_get_mac_vlan - Get MAC/VLAN stored in attribute
146 * place it in the array pointed by mac_addr. It will return success
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/linux/drivers/net/ethernet/rocker/
H A Drocker_hw.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * drivers/net/ethernet/rocker/rocker_hw.h - Rocker switch device driver
4 * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
32 /* MSI-X vectors */
45 (ROCKER_MSIX_VEC_RX((portcnt - 1)) + 1)
56 #define ROCKER_TEST_REG64 0x0018 /* 8-byte */
58 #define ROCKER_TEST_DMA_ADDR 0x0028 /* 8-byte */
68 #define ROCKER_DMA_DESC_ADDR(x) (0x1000 + (x) * 32) /* 8-byte */
121 ROCKER_TLV_CMD_INFO, /* nest */
124 ROCKER_TLV_CMD_MAX = __ROCKER_TLV_CMD_MAX - 1,
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/linux/arch/powerpc/include/asm/
H A Dimc-pmu.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
6 * IMC Nest Performance Monitor counter support.
22 #define IMC_DTB_COMPAT "ibm,opal-in-memory-counters"
23 #define IMC_DTB_UNIT_COMPAT "ibm,imc-counters"
28 * perf/imc-pmu.c has the LDBAR layout information.
35 * For debugfs interface for imc-mode and imc-command
50 * Place holder for nest pmu events and values.
87 /* Event attribute array index */
146 * In-Memory Collection Counters type.
164 /* For trace-imc the domain is still thread but it operates in trace-mode */
/linux/Documentation/arch/x86/
H A Dentry_64.rst1 .. SPDX-License-Identifier: GPL-2.0
16 for 64-bit, arch/x86/entry/entry_32.S for 32-bit and finally
17 arch/x86/entry/entry_64_compat.S which implements the 32-bit compatibility
18 syscall entry points and thus provides for 32-bit processes the
19 ability to execute syscalls when running on 64-bit kernels.
25 - system_call: syscall instruction from 64-bit code.
27 - entry_INT80_compat: int 0x80 from 32-bit or 64-bit code; compat syscall
30 - entry_INT80_compat, ia32_sysenter: syscall and sysenter from 32-bit
33 - interrupt: An array of entries. Every IDT vector that doesn't
35 value in interrupts. These point to a whole array of
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/linux/arch/powerpc/perf/
H A Dimc-pmu.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * In-Memory Collection (IMC) Performance Monitor counter support.
13 #include <asm/imc-pmu.h>
19 /* Nest IMC data structures and variables */
22 * Used to avoid races in counting the nest-pmu units during hotplug
51 * core and trace-imc
61 return container_of(event->pmu, struct imc_pmu, pmu); in imc_event_to_pmu()
64 PMU_FORMAT_ATTR(event, "config:0-61");
65 PMU_FORMAT_ATTR(offset, "config:0-31");
67 PMU_FORMAT_ATTR(mode, "config:33-40");
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/linux/lib/
H A Drhashtable.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (c) 2014-2015 Thomas Graf <tgraf@suug.ch>
7 * Copyright (c) 2008-2014 Patrick McHardy <kaber@trash.net>
41 return rht_head_hashfn(ht, tbl, he, ht->p); in head_hashfn()
49 return (debug_locks) ? lockdep_is_held(&ht->mutex) : 1; in lockdep_rht_mutex_is_held()
57 if (unlikely(tbl->nest)) in lockdep_rht_bucket_is_held()
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/linux/drivers/crypto/nx/
H A Dnx_csbcpb.h1 /* SPDX-License-Identifier: GPL-2.0 */
104 #define NX_CPB_FDM(c) ((c)->cpb.hdr.fdm)
105 #define NX_CPB_KS_DS(c) ((c)->cpb.hdr.ks_ds)
137 /* co-processor status block */
147 /* Nest accelerator workbook section 4.4 */
199 /* indices into the array of algorithm properties */
/linux/net/netlink/
H A Dgenetlink.c1 // SPDX-License-Identifier: GPL-2.0
59 if (!family->parallel_ops) in genl_op_lock()
65 if (!family->parallel_ops) in genl_op_unlock()
77 * Bit 1 is marked as already used since the drop-monitor code
82 * and the code no longer marks pre-reserved IDs as used.
95 /* We need the last attribute with non-zero ID therefore a 2-entry array */
109 BUILD_BUG_ON(ARRAY_SIZE(genl_policy_reject_all) - 1 != 1); in genl_op_fill_in_reject_policy()
111 if (op->policy || op->cmd < family->resv_start_op) in genl_op_fill_in_reject_policy()
114 op->policy = genl_policy_reject_all; in genl_op_fill_in_reject_policy()
115 op->maxattr = 1; in genl_op_fill_in_reject_policy()
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/linux/fs/btrfs/
H A Dctree.h1 /* SPDX-License-Identifier: GPL-2.0 */
22 #include "extent-io-tree.h"
55 * The slots array records the index of the item or block pointer
95 * btrfs_record_root_in_trans is a multi-step process, and it can race
109 * - How balance works
114 * While for non-shareable trees, we just simply do a tree search
117 * - How dirty roots are tracked
119 * track them, while non-subvolume roots have TRACK_DIRTY bit, they
222 /* The dirty list is only used by non-shareable roots */
228 * Xarray that keeps track of in-memory inodes, protected by the lock
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/linux/include/uapi/linux/
H A Dnetlink.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
17 #define NETLINK_ISCSI 8 /* Open-iSCSI */
45 * struct nlmsghdr - fixed format metadata header of Netlink messages
99 #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
104 #define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
106 NLMSG_ALIGN((nlh)->nlmsg_len)))
108 (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
109 (nlh)->nlmsg_len <= (len))
110 #define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
134 * enum nlmsgerr_attrs - nlmsgerr attributes
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/linux/kernel/trace/
H A Dring_buffer.c1 // SPDX-License-Identifier: GPL-2.0
100 * +------+
103 * +------+ +---+ +---+ +---+
104 * | |-->| |-->| |
105 * +---+ +---+ +---+
108 * +---------------+
111 * +------+
113 * |page |------------------v
114 * +------+ +---+ +---+ +---+
115 * | |-->| |-->| |
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/linux/tools/net/ynl/lib/
H A Dynl-priv.h1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
31 YNL_PARSE_CB_ERROR = -1,
38 #define YNL_ARRAY_SIZE(array) (sizeof(array) ? \ argument
39 sizeof(array) / sizeof(array[0]) : 0)
48 const struct ynl_policy_nest *nest; member
72 uptr -= offsetof(struct ynl_dump_list_type, data); in ynl_dump_obj_is_last()
81 uptr -= offsetof(struct ynl_dump_list_type, data); in ynl_dump_obj_next()
83 uptr = (unsigned long)list->next; in ynl_dump_obj_next()
104 /* YNL specific helpers used by the auto-generated code */
145 nlh->nlmsg_len = NLMSG_HDRLEN; in ynl_nlmsg_put_header()
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/linux/drivers/net/ethernet/meta/fbnic/
H A Dfbnic_tlv.c1 // SPDX-License-Identifier: GPL-2.0
14 * fbnic_tlv_msg_alloc - Allocate page and initialize FW message header
37 msg->hdr = hdr; in fbnic_tlv_msg_alloc()
43 * fbnic_tlv_attr_put_flag - Add flag value to message
47 * Return: -ENOSPC if there is no room for the attribute. Otherwise 0.
55 int attr_max_len = PAGE_SIZE - offset_in_page(msg) - sizeof(*msg); in fbnic_tlv_attr_put_flag()
59 attr_max_len -= le16_to_cpu(msg->hdr.len) * sizeof(u32); in fbnic_tlv_attr_put_flag()
61 return -ENOSPC; in fbnic_tlv_attr_put_flag()
64 attr = &msg[le16_to_cpu(msg->hdr.len)]; in fbnic_tlv_attr_put_flag()
70 attr->hdr = hdr; in fbnic_tlv_attr_put_flag()
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/linux/net/ipv4/
H A Dnexthop.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2017-19 Cumulus Networks
5 * Copyright (c) 2017-19 David Ahern <dsa@cumulusnetworks.com>
93 return !net->nexthop.notifier_chain.head; in nexthop_notifiers_is_empty()
100 nh_info->dev = nhi->fib_nhc.nhc_dev; in __nh_notifier_single_info_init()
101 nh_info->gw_family = nhi->fib_nhc.nhc_gw_family; in __nh_notifier_single_info_init()
102 if (nh_info->gw_family == AF_INET) in __nh_notifier_single_info_init()
103 nh_info->ipv4 = nhi->fib_nhc.nhc_gw.ipv4; in __nh_notifier_single_info_init()
104 else if (nh_info->gw_family == AF_INET6) in __nh_notifier_single_info_init()
105 nh_info->ipv6 = nhi->fib_nhc.nhc_gw.ipv6; in __nh_notifier_single_info_init()
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/linux/net/sched/
H A Dcls_api.c1 // SPDX-License-Identifier: GPL-2.0-or-later
65 * action index in the exts tc actions array.
84 if (WARN_ON(!handle || !tp->ops->get_exts)) in tcf_exts_miss_cookie_base_alloc()
85 return -EINVAL; in tcf_exts_miss_cookie_base_alloc()
89 return -ENOMEM; in tcf_exts_miss_cookie_base_alloc()
91 n->chain_index = tp->chain->index; in tcf_exts_miss_cookie_base_alloc()
92 n->chain = tp->chain; in tcf_exts_miss_cookie_base_alloc()
93 n->tp_prio = tp->prio; in tcf_exts_miss_cookie_base_alloc()
94 n->tp = tp; in tcf_exts_miss_cookie_base_alloc()
95 n->exts = exts; in tcf_exts_miss_cookie_base_alloc()
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/linux/drivers/android/
H A Dbinder_internal.h1 /* SPDX-License-Identifier: GPL-2.0 */
27 * struct binder_device - information about a binder device node
43 * binderfs_mount_opts - mount options for binderfs
53 * binderfs_info - information about a binderfs mount
56 * binder-control device.
63 * @proc_log_dir: Pointer to the directory dentry containing process-specific
121 (entry)->name; \
144 * struct binder_work - wor
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