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/linux/arch/arm/kernel/
H A Datags_compat.c13 * to convert to the new struct tag way.
81 static struct tag * __init memtag(struct tag *tag, unsigned long start, unsigned long size) in memtag() argument
83 tag = tag_next(tag); in memtag()
84 tag->hdr.tag = ATAG_MEM; in memtag()
85 tag->hdr.size = tag_size(tag_mem32); in memtag()
86 tag->u.mem.size = size; in memtag()
87 tag->u.mem.start = start; in memtag()
89 return tag; in memtag()
94 struct tag *tag = taglist; in build_tag_list() local
119 tag->hdr.tag = ATAG_CORE; in build_tag_list()
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H A Datags_parse.c3 * Tag parsing.
11 * of variable-sized tags to the kernel. The first tag must be a ATAG_CORE
12 * tag for the list to be recognised (to distinguish the tagged list from
13 * a param_struct). The list is terminated with a zero-length tag (this tag
53 static int __init parse_tag_core(const struct tag *tag) in parse_tag_core() argument
55 if (tag->hdr.size > 2) { in parse_tag_core()
56 if ((tag->u.core.flags & 1) == 0) in parse_tag_core()
58 ROOT_DEV = old_decode_dev(tag->u.core.rootdev); in parse_tag_core()
65 static int __init parse_tag_mem32(const struct tag *tag) in parse_tag_mem32() argument
67 return arm_add_memory(tag->u.mem.start, tag->u.mem.size); in parse_tag_mem32()
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/linux/arch/mips/include/asm/octeon/
H A Dcvmx-pow.h38 * - Requesting a POW operation with an active tag switch in
40 * - Waiting for a tag switch to complete for an excessively
43 * - Illegal tag switches from NULL_NULL.
44 * - Illegal tag switches from NULL.
65 /* Tag ordering is maintained */
67 /* Tag ordering is maintained, and at most one PP has the tag */
70 * The work queue entry from the order - NEVER tag switch from
74 /* A tag switch to NULL, and there is no space reserved in POW
75 * - NEVER tag switch to NULL_NULL
76 * - NEVER tag switch from NULL_NULL
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/linux/net/dsa/
H A DKconfig22 tristate "No-op tag driver"
24 Say Y or M if you want to enable support for switches which don't tag
28 tristate "Tag driver for Atheros AR9331 SoC with built-in switch"
38 tristate "Tag driver for Broadcom switches using in-frame headers"
42 Broadcom switches which place the tag after the MAC source address.
45 tristate "Tag driver for BCM63xx legacy switches using in-frame headers"
49 BCM63xx legacy switches which place the tag after the MAC source
51 This tag is used in BCM63xx legacy switches which work without the
52 original FCS and length before the tag insertion.
55 tristate "Tag driver for BCM53xx legacy switches using in-frame headers"
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H A Dtag_brcm.c3 * Broadcom tag support
14 #include "tag.h"
21 /* Legacy Broadcom tag (6 bytes) */
25 /* 1st byte in the tag */
27 /* 2nd byte in the tag */
30 /* Tag fields */
31 /* 3rd byte in the tag */
38 /* 4th byte in the tag */
41 /* 6th byte in the tag */
44 /* Newer Broadcom tag (4 bytes) */
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H A Dtag_yt921x.c8 * | DA | SA | TagET | Tag | ET | Payload ...
12 * Tag Ethertype: CPU_TAG_TPID_TPID (default: ETH_P_YT921X = 0x9988)
15 * Tag:
16 * 2: VLAN Tag
31 #include "tag.h"
61 __be16 *tag; in yt921x_tag_xmit() local
67 tag = dsa_etype_header_pos_tx(skb); in yt921x_tag_xmit()
69 tag[0] = htons(ETH_P_YT921X); in yt921x_tag_xmit()
70 /* VLAN tag unrelated when TX */ in yt921x_tag_xmit()
71 tag[1] = 0; in yt921x_tag_xmit()
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/linux/drivers/net/ethernet/mellanox/mlx5/core/steering/sws/
H A Ddr_ste_v0.c740 u8 *tag) in dr_ste_v0_build_eth_l2_src_dst_tag() argument
744 DR_STE_SET_TAG(eth_l2_src_dst, tag, dmac_47_16, spec, dmac_47_16); in dr_ste_v0_build_eth_l2_src_dst_tag()
745 DR_STE_SET_TAG(eth_l2_src_dst, tag, dmac_15_0, spec, dmac_15_0); in dr_ste_v0_build_eth_l2_src_dst_tag()
748 MLX5_SET(ste_eth_l2_src_dst, tag, smac_47_32, in dr_ste_v0_build_eth_l2_src_dst_tag()
750 MLX5_SET(ste_eth_l2_src_dst, tag, smac_31_0, in dr_ste_v0_build_eth_l2_src_dst_tag()
758 MLX5_SET(ste_eth_l2_src_dst, tag, l3_type, STE_IPV4); in dr_ste_v0_build_eth_l2_src_dst_tag()
761 MLX5_SET(ste_eth_l2_src_dst, tag, l3_type, STE_IPV6); in dr_ste_v0_build_eth_l2_src_dst_tag()
768 DR_STE_SET_TAG(eth_l2_src_dst, tag, first_vlan_id, spec, first_vid); in dr_ste_v0_build_eth_l2_src_dst_tag()
769 DR_STE_SET_TAG(eth_l2_src_dst, tag, first_cfi, spec, first_cfi); in dr_ste_v0_build_eth_l2_src_dst_tag()
770 DR_STE_SET_TAG(eth_l2_src_dst, tag, first_priority, spec, first_prio); in dr_ste_v0_build_eth_l2_src_dst_tag()
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H A Ddr_ste_v1.c223 u8 *tag = hw_ste_p + DR_STE_SIZE_CTRL; in dr_ste_v1_prepare_for_postsend() local
224 u8 *mask = tag + DR_STE_SIZE_TAG; in dr_ste_v1_prepare_for_postsend()
232 /* Backup tag */ in dr_ste_v1_prepare_for_postsend()
233 memcpy(tmp_tag, tag, DR_STE_SIZE_TAG); in dr_ste_v1_prepare_for_postsend()
235 /* Swap mask and tag both are the same size */ in dr_ste_v1_prepare_for_postsend()
236 memcpy(tag, mask, DR_STE_SIZE_MASK); in dr_ste_v1_prepare_for_postsend()
451 * which doesn't have mask, and shouldn't have mask/tag swapped. in dr_ste_v1_set_match_range_pkt_len()
457 * To allow mask/tag swapping, writing the min/max_2 to min/max_0. in dr_ste_v1_set_match_range_pkt_len()
992 u8 *tag) in dr_ste_v1_build_eth_l2_src_dst_tag() argument
996 DR_STE_SET_TAG(eth_l2_src_dst_v1, tag, dmac_47_16, spec, dmac_47_16); in dr_ste_v1_build_eth_l2_src_dst_tag()
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/linux/drivers/iommu/intel/
H A Dcache.c22 /* Check if an existing cache tag can be reused for a new association. */
23 static bool cache_tage_match(struct cache_tag *tag, u16 domain_id, in cache_tage_match() argument
27 if (tag->type != type) in cache_tage_match()
30 if (tag->domain_id != domain_id || tag->pasid != pasid) in cache_tage_match()
34 return tag->iommu == iommu; in cache_tage_match()
37 return tag->dev == dev; in cache_tage_match()
42 /* Assign a cache tag with specified type to domain. */
48 struct cache_tag *tag, *temp; in cache_tag_assign() local
52 tag = kzalloc_obj(*tag); in cache_tag_assign()
53 if (!tag) in cache_tag_assign()
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H A Dtrace.h94 TP_PROTO(struct cache_tag *tag),
95 TP_ARGS(tag),
97 __string(iommu, tag->iommu->name)
98 __string(dev, dev_name(tag->dev))
107 __entry->type = tag->type;
108 __entry->domain_id = tag->domain_id;
109 __entry->pasid = tag->pasid;
110 __entry->users = tag->users;
124 TP_PROTO(struct cache_tag *tag),
125 TP_ARGS(tag)
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/linux/Documentation/netlabel/
H A Ddraft-ietf-cipso-ipsecurity-01.txt142 3.4 Tag Types
146 information relevant to the data in the IP packet. Each tag begins with
147 a tag type identifier followed by the length of the tag and ends with the
148 actual security information to be passed. All multi-octet fields in a tag
151 all tags, as well as fields within a tag, are not aligned on any particular
152 octet boundary. The tag types defined in this document contain alignment
156 CIPSO tag types 0 through 127 are reserved for defining standard tag
157 formats. Their definitions will be published in RFCs. Tag types whose
159 only be meaningful in certain Domains of Interpretation. For these tag
160 types, implementations will require the DOI identifier as well as the tag
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/linux/tools/testing/selftests/ublk/
H A Dnull.c46 static void __setup_nop_io(int tag, const struct ublksrv_io_desc *iod, in __setup_nop_io() argument
56 sqe->user_data = build_user_data(tag, ublk_op, 0, q_id, 1); in __setup_nop_io()
60 int tag) in null_queue_zc_io() argument
62 const struct ublksrv_io_desc *iod = ublk_get_iod(q, tag); in null_queue_zc_io()
64 unsigned short buf_idx = ublk_io_buf_idx(t, q, tag); in null_queue_zc_io()
68 io_uring_prep_buf_register(sqe[0], q, tag, q->q_id, buf_idx); in null_queue_zc_io()
69 sqe[0]->user_data = build_user_data(tag, in null_queue_zc_io()
73 __setup_nop_io(tag, iod, sqe[1], q->q_id, buf_idx); in null_queue_zc_io()
76 io_uring_prep_buf_unregister(sqe[2], q, tag, q->q_id, buf_idx); in null_queue_zc_io()
77 sqe[2]->user_data = build_user_data(tag, ublk_cmd_op_nr(sqe[2]->cmd_op), 0, q->q_id, 1); in null_queue_zc_io()
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H A Dfile_backed.c17 const struct ublksrv_io_desc *iod, int tag) in loop_queue_flush_io() argument
26 sqe[0]->user_data = build_user_data(tag, ublk_op, 0, q->q_id, 1); in loop_queue_flush_io()
31 const struct ublksrv_io_desc *iod, int tag) in loop_queue_tgt_rw_io() argument
37 struct ublk_io *io = ublk_get_io(q, tag); in loop_queue_tgt_rw_io()
42 unsigned short buf_index = ublk_io_buf_idx(t, q, tag); in loop_queue_tgt_rw_io()
53 sqe[0]->user_data = build_user_data(tag, ublk_op, 1, q->q_id, 1); in loop_queue_tgt_rw_io()
69 sqe[0]->user_data = build_user_data(tag, ublk_op, 0, q->q_id, 1); in loop_queue_tgt_rw_io()
75 io_uring_prep_buf_register(sqe[0], q, tag, q->q_id, buf_index); in loop_queue_tgt_rw_io()
77 sqe[0]->user_data = build_user_data(tag, in loop_queue_tgt_rw_io()
85 sqe[1]->user_data = build_user_data(tag, ublk_op, 0, q->q_id, 1); in loop_queue_tgt_rw_io()
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H A Dkublk.h127 int tag; member
141 int (*queue_io)(struct ublk_thread *, struct ublk_queue *, int tag);
155 const struct ublk_queue *, int tag);
192 __u16 tag; member
322 static inline __u64 ublk_user_copy_offset(unsigned q_id, unsigned tag) in ublk_user_copy_offset() argument
325 ((__u64)q_id << UBLK_QID_OFF | (__u64)tag << UBLK_TAG_OFF); in ublk_user_copy_offset()
333 static inline __u64 build_user_data(unsigned tag, unsigned op, in build_user_data() argument
338 ublk_assert(!(tag >> 16) && !(op >> 8) && !(tgt_data >> 16) && !(q_id >> 7)); in build_user_data()
340 return tag | ((__u64)op << 16) | ((__u64)tgt_data << 24) | in build_user_data()
371 return container_of(io, struct ublk_queue, ios[io->tag]); in ublk_io_to_queue()
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/linux/drivers/net/ethernet/netronome/nfp/
H A Dccm.c38 static void nfp_ccm_free_tag(struct nfp_ccm *ccm, u16 tag) in nfp_ccm_free_tag() argument
40 WARN_ON(!__test_and_clear_bit(tag, ccm->tag_allocator)); in nfp_ccm_free_tag()
47 static struct sk_buff *__nfp_ccm_reply(struct nfp_ccm *ccm, u16 tag) in __nfp_ccm_reply() argument
54 if (msg_tag == tag) { in __nfp_ccm_reply()
55 nfp_ccm_free_tag(ccm, tag); in __nfp_ccm_reply()
65 nfp_ccm_reply(struct nfp_ccm *ccm, struct nfp_app *app, u16 tag) in nfp_ccm_reply() argument
70 skb = __nfp_ccm_reply(ccm, tag); in nfp_ccm_reply()
77 nfp_ccm_reply_drop_tag(struct nfp_ccm *ccm, struct nfp_app *app, u16 tag) in nfp_ccm_reply_drop_tag() argument
82 skb = __nfp_ccm_reply(ccm, tag); in nfp_ccm_reply_drop_tag()
84 nfp_ccm_free_tag(ccm, tag); in nfp_ccm_reply_drop_tag()
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/linux/include/linux/
H A Dalloc_tag.h137 static inline struct alloc_tag_counters alloc_tag_read(struct alloc_tag *tag) in alloc_tag_read() argument
144 counter = per_cpu_ptr(tag->counters, cpu); in alloc_tag_read()
153 static inline void alloc_tag_add_check(union codetag_ref *ref, struct alloc_tag *tag) in alloc_tag_add_check() argument
156 "alloc_tag was not cleared (got tag for %s:%u)\n", in alloc_tag_add_check()
159 WARN_ONCE(!tag, "current->alloc_tag not set\n"); in alloc_tag_add_check()
167 static inline void alloc_tag_add_check(union codetag_ref *ref, struct alloc_tag *tag) {} in alloc_tag_add_check() argument
171 /* Caller should verify both ref and tag to be valid */
172 static inline bool __alloc_tag_ref_set(union codetag_ref *ref, struct alloc_tag *tag) in __alloc_tag_ref_set() argument
174 alloc_tag_add_check(ref, tag); in __alloc_tag_ref_set()
175 if (!ref || !tag) in __alloc_tag_ref_set()
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/linux/tools/testing/selftests/arm64/mte/
H A Dmte_helper.S19 * mte_insert_random_tag: Insert random tag and might be same as the source tag if
22 * x0 - source pointer with a tag/no-tag
24 * x0 - pointer with random tag
32 * mte_insert_new_tag: Insert new tag and different from the source tag if
35 * x0 - source pointer with a tag/no-tag
37 * x0 - pointer with random tag
46 * mte_get_tag_address: Get the tag from given address.
50 * x0 - pointer with appended tag
58 * mte_set_tag_address_range: Set the tag range from the given address
60 * x0 - source pointer with tag data
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H A Dcheck_tags_inclusion.c52 int tag, run, ret, result = KSFT_PASS; in check_single_included_tags() local
59 for (tag = 0; (tag < MT_TAG_COUNT) && (result == KSFT_PASS); tag++) { in check_single_included_tags()
60 ret = mte_switch_mode(mode, MT_INCLUDE_VALID_TAG(tag), false); in check_single_included_tags()
63 /* Try to catch a excluded tag by a number of tries. */ in check_single_included_tags()
66 /* Check tag value */ in check_single_included_tags()
67 if (MT_FETCH_TAG((uintptr_t)ptr) == tag) { in check_single_included_tags()
68 ksft_print_msg("FAIL: wrong tag = 0x%lx with include mask=0x%x\n", in check_single_included_tags()
70 MT_INCLUDE_VALID_TAG(tag)); in check_single_included_tags()
84 int tag, run, result = KSFT_PASS; in check_multiple_included_tags() local
92 for (tag = 0; (tag < MT_TAG_COUNT - 1) && (result == KSFT_PASS); tag++) { in check_multiple_included_tags()
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/linux/drivers/gpu/drm/xe/
H A Dxe_guc_klv_helpers.h42 * MAKE_GUC_KLV_KEY - Prepare KLV KEY name based on unique KLV definition tag.
43 * @TAG: unique tag of the KLV definition
45 #define MAKE_GUC_KLV_KEY(TAG) CONCATENATE(CONCATENATE(GUC_KLV_, TAG), _KEY) argument
48 * MAKE_GUC_KLV_LEN - Prepare KLV LEN name based on unique KLV definition tag.
49 * @TAG: unique tag of the KLV definition
51 #define MAKE_GUC_KLV_LEN(TAG) CONCATENATE(CONCATENATE(GUC_KLV_, TAG), _LEN) argument
54 * PREP_GUC_KLV_TAG - Prepare KLV header value based on unique KLV definition tag.
55 * @TAG: unique tag of the KLV definition
57 * Combine separate KEY and LEN definitions of the KLV identified by the TAG.
61 #define PREP_GUC_KLV_TAG(TAG) \ argument
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/linux/Documentation/dev-tools/
H A Dkasan.rst16 2. Software Tag-Based KASAN
17 3. Hardware Tag-Based KASAN
23 Software Tag-Based KASAN or SW_TAGS KASAN, enabled with CONFIG_KASAN_SW_TAGS,
28 Hardware Tag-Based KASAN or HW_TAGS KASAN, enabled with CONFIG_KASAN_HW_TAGS,
37 The Generic and the Software Tag-Based modes are commonly referred to as the
38 software modes. The Software Tag-Based and the Hardware Tag-Based modes are
39 referred to as the tag-based modes.
48 and loongarch, and the tag-based KASAN modes are supported only on arm64.
55 support for that. The Hardware Tag-Based mode relies on hardware to perform
62 Software Tag-Based KASAN requires GCC 11+
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/linux/drivers/net/wireless/mediatek/mt76/mt7996/
H A Dmcu.h69 __le16 tag; member
125 __le16 tag; member
153 __le16 tag; member
172 __le16 tag; member
201 __le16 tag; member
231 __le16 tag; member
236 __le16 tag; member
248 __le16 tag; member
266 __le16 tag; member
285 __le16 tag; member
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/linux/lib/
H A Dradix-tree.c100 static inline void tag_set(struct radix_tree_node *node, unsigned int tag, in tag_set() argument
103 __set_bit(offset, node->tags[tag]); in tag_set()
106 static inline void tag_clear(struct radix_tree_node *node, unsigned int tag, in tag_clear() argument
109 __clear_bit(offset, node->tags[tag]); in tag_clear()
112 static inline int tag_get(const struct radix_tree_node *node, unsigned int tag, in tag_get() argument
115 return test_bit(offset, node->tags[tag]); in tag_get()
118 static inline void root_tag_set(struct radix_tree_root *root, unsigned tag) in root_tag_set() argument
120 root->xa_flags |= (__force gfp_t)(1 << (tag + ROOT_TAG_SHIFT)); in root_tag_set()
123 static inline void root_tag_clear(struct radix_tree_root *root, unsigned tag) in root_tag_clear() argument
125 root->xa_flags &= (__force gfp_t)~(1 << (tag + ROOT_TAG_SHIFT)); in root_tag_clear()
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/linux/drivers/staging/media/atomisp/pci/hive_isp_css_shared/host/
H A Dtag.c7 #include "tag.h"
13 * @brief Creates the tag description from the given parameters.
35 * @brief Encodes the members of tag description into a 32-bit value.
36 * @param[in] tag Pointer to the tag description
37 * @return (unsigned int) Encoded 32-bit tag-info
40 sh_css_encode_tag_descr(struct sh_css_tag_descr *tag) in sh_css_encode_tag_descr() argument
50 assert(tag); in sh_css_encode_tag_descr()
52 if (tag->num_captures < 0) { in sh_css_encode_tag_descr()
53 num_captures = -tag->num_captures; in sh_css_encode_tag_descr()
56 num_captures = tag->num_captures; in sh_css_encode_tag_descr()
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/linux/drivers/ata/
H A Dsata_dwc_460ex.c55 u32 fptagr; /* 1st party DMA tag */
175 static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag);
178 static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag);
295 u8 tag = 0; in dma_dwc_xfer_done() local
301 tag = ap->link.active_tag; in dma_dwc_xfer_done()
309 sata_dwc_clear_dmacr(hsdevp, tag); in dma_dwc_xfer_done()
311 if (hsdevp->dma_pending[tag] == SATA_DWC_DMA_PENDING_NONE) { in dma_dwc_xfer_done()
312 dev_err(ap->dev, "DMA not pending tag=0x%02x pending=%d\n", in dma_dwc_xfer_done()
313 tag, hsdevp->dma_pending[tag]); in dma_dwc_xfer_done()
405 static u32 qcmd_tag_to_mask(u8 tag) in qcmd_tag_to_mask() argument
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/linux/Documentation/arch/arm64/
H A Dmemory-tagging-extension.rst19 allocation tag for each 16-byte granule in the physical address space.
21 attribute. A logical tag is derived from bits 59-56 of the virtual
23 the logical tag against the allocation tag and potentially raise an
42 The allocation tag is set to 0 when such pages are first mapped in the
58 Tag Check Faults
66 tag check fault.
75 thread, asynchronously following one or multiple tag check faults,
87 - ``PR_MTE_TCF_NONE``  - *Ignore* tag check faults
89 - ``PR_MTE_TCF_SYNC`` - *Synchronous* tag check fault mode
90 - ``PR_MTE_TCF_ASYNC`` - *Asynchronous* tag check fault mode
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