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/linux/drivers/scsi/elx/libefc/
H A Defc_device.c1 // SPDX-License-Identifier: GPL-2.0
19 struct efc *efc = node->efc; in efc_d_send_prli_rsp()
21 node->ls_acc_oxid = ox_id; in efc_d_send_prli_rsp()
22 node->send_ls_acc = EFC_NODE_SEND_LS_ACC_PRLI; in efc_d_send_prli_rsp()
29 if (node->init) { in efc_d_send_prli_rsp()
31 node->display_name, node->wwpn, node->wwnn); in efc_d_send_prli_rsp()
32 if (node->nport->enable_tgt) in efc_d_send_prli_rsp()
33 rc = efc->tt.scsi_new_node(efc, node); in efc_d_send_prli_rsp()
50 node = ctx->app; in __efc_d_common()
51 efc = node->efc; in __efc_d_common()
[all …]
H A Defc_node.c1 // SPDX-License-Identifier: GPL-2.0
14 struct efc_node *node = rnode->node; in efc_remote_node_cb()
17 spin_lock_irqsave(&efc->lock, flags); in efc_remote_node_cb()
19 spin_unlock_irqrestore(&efc->lock, flags); in efc_remote_node_cb()
28 return xa_load(&nport->lookup, port_id); in efc_node_find()
35 struct efc *efc = node->efc; in _efc_node_free()
38 dma = &node->sparm_dma_buf; in _efc_node_free()
39 dma_pool_free(efc->node_dma_pool, dma->virt, dma->phys); in _efc_node_free()
41 mempool_free(node, efc->node_pool); in _efc_node_free()
49 struct efc *efc = nport->efc; in efc_node_alloc()
[all …]
H A Defc_fabric.c1 // SPDX-License-Identifier: GPL-2.0
9 * - Fabric logins.
10 * - Fabric controller events.
11 * - Name/directory services interaction.
12 * - Point-to-point logins.
18 * p2p_sm Node State Machine: Point-to-Point Node States
26 struct efc *efc = node->efc; in efc_fabric_initiate_shutdown()
28 node->els_io_enabled = false; in efc_fabric_initiate_shutdown()
30 if (node->attached) { in efc_fabric_initiate_shutdown()
34 * or sometime later, will check node->attached later in in efc_fabric_initiate_shutdown()
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H A Defclib.h1 /* SPDX-License-Identifier: GPL-2.0 */
112 * @attached: mark attached if reg VPI succeeds
113 * @p2p_winner: TRUE if we're the point-to-point winner
131 * @p2p_port_id: our port id for point-to-point
134 * @p2p_remote_port_id: remote node's port id for point-to-point
146 bool attached; member
196 * @attached: set true after attach completes
229 bool attached; member
255 * @attached: true if attached
264 bool attached; member
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/linux/Documentation/driver-api/usb/
H A Dpersist.rst1 .. _usb-persist:
14 bus must continue to supply suspend current (around 1-5 mA). This
16 detect connect-change events (devices being plugged in or unplugged).
23 device is still attached or perhaps it was removed and a different
28 wakes up all the devices attached to that controller are treated as
38 Unfortunately problems _can_ arise, particularly with mass-storage
41 filesystem on the device, you're out of luck -- everything in that
57 suspend-to-RAM. On almost all systems, no suspend current is
58 available during hibernation (also known as swsusp or suspend-to-disk).
65 suspended -- but it will crash as soon as it wakes up, which isn't
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/linux/sound/soc/cirrus/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
7 Say Y or M if you want to add support for codecs attached to
14 Say Y or M if you want to add support for codecs attached to
27 which disables and re-enables I2S in case of underflow and
/linux/include/linux/i3c/
H A Dmaster.h1 /* SPDX-License-Identifier: GPL-2.0 */
39 * struct i3c_i2c_dev_desc - Common part of the I3C/I2C device descriptor
62 * struct i2c_dev_boardinfo - I2C device board information
68 * This structure is used to attach board-level information to an I2C device.
78 * struct i2c_dev_desc - I2C device descriptor
86 * This object is created by the core and later attached to the controller
87 * using &struct_i3c_master_controller->ops->attach_i2c_de
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/linux/tools/testing/selftests/net/
H A Dnl_netdev.py2 # SPDX-License-Identifier: GPL-2.0
10 def empty_check(nf) -> None:
15 def lo_check(nf) -> None:
17 ksft_eq(len(lo_info['xdp-features']), 0)
18 ksft_eq(len(lo_info['xdp-rx-metadata-features']), 0)
21 def page_pool_check(nf) -> None:
64 attached = [pp for pp in pp_list if "detach-time" not in pp]
65 ksft_eq(len(attached), 0)
70 attached = [pp for pp in pp_list if "detach-time" not in pp]
71 detached = [pp for pp in pp_list if "detach-time" in pp]
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/linux/drivers/infiniband/sw/rxe/
H A Drxe_mcast.c1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
12 * attached to a new mgid for the first time. These are indexed by
13 * a red-black tree using the mgid. This data structure is searched
15 * qp is attached to the same mgid. It is cleaned up when the last qp
16 * is detached from the mcg. Each time a qp is attached to an mcg an
18 * of qp's that are attached to the mcg. The qp_list is used to replicate
25 * rxe_mcast_add - add multicast address to rxe device
37 ndev = rxe_ib_device_get_netdev(&rxe->ib_dev); in rxe_mcast_add()
39 return -ENODEV; in rxe_mcast_add()
41 ipv6_eth_mc_map((struct in6_addr *)mgid->raw, ll_addr); in rxe_mcast_add()
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/linux/Documentation/admin-guide/
H A Dbcache.rst11 This is the git repository of bcache-tools:
12 https://git.kernel.org/pub/scm/linux/kernel/git/colyli/bcache-tools.git/
17 It's designed around the performance characteristics of SSDs - it only allocates
25 great lengths to protect your data - it reliably handles unclean shutdown. (It
27 writes as completed until they're on stable storage).
29 Writeback caching can use most of the cache for buffering writes - writing
36 average is above the cutoff it will skip all IO from that task - instead of
47 You'll need bcache util from the bcache-tools repository. Both the cache device
50 bcache make -B /dev/sdb
51 bcache make -C /dev/sdc
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/linux/tools/arch/x86/dell-uart-backlight-emulator/
H A DREADME1 Emulator for DELL0501 UART attached backlight controller
2 --------------------------------------------------------
13 the backlight controller board attached.
16 the drivers/platform/x86/dell/dell-uart-backlight.c driver without access
32 ./dell-uart-backlight-emulator <path-to-/dev/tty*S#-for-second-port>
36 ./dell-uart-backlight-emulator /dev/ttyUSB0
38 And then (re)load the dell-uart-backlight driver:
40 sudo rmmod dell-uart-backlight; sudo modprobe dell-uart-backlight dyndbg
/linux/arch/mips/include/asm/octeon/
H A Dcvmx-pow.h7 * Copyright (c) 2003-2008 Cavium Networks
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
31 * New, starting with SDK 1.7.0, cvmx-pow supports a number of
36 * enabled. For example, cvmx-pow will check for the following
38 * - 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.
45 * - Illegal deschedule request.
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/linux/drivers/gpu/drm/imagination/
H A Dpvr_queue.c1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
40 sizeof(((struct rogue_fwif_frag_ctx_state *)0)->frag_reg_isp_store[0])); in get_xfer_ctx_state_size()
70 sizeof(((struct rogue_fwif_frag_ctx_state *)0)->frag_reg_isp_store[0])); in get_frag_ctx_state_size()
87 return -EINVAL; in get_ctx_state_size()
116 pvr_context_put(fence->queue->ctx); in pvr_queue_fence_release()
125 switch (fence->queue->type) { in pvr_queue_job_fence_get_timeline_name()
148 switch (fence->queue->type) { in pvr_queue_cccb_fence_get_timeline_name()
150 return "geometry-cccb"; in pvr_queue_cccb_fence_get_timeline_name()
153 return "fragment-cccb"; in pvr_queue_cccb_fence_get_timeline_name()
156 return "compute-cccb"; in pvr_queue_cccb_fence_get_timeline_name()
[all …]
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dusdt.c1 // SPDX-License-Identifier: GPL-2.0
15 static volatile short nums[] = {-1, -2, -3, -4};
20 } t1 = { 1, -127 };
38 y / 7, bla, &bla, -9, nums[x], in trigger_func()
54 bss = skel->bss; in subtest_basic_usdt()
55 bss->my_pid = getpid(); in subtest_basic_usdt()
61 /* usdt0 won't be auto-attached */ in subtest_basic_usdt()
63 skel->links.usdt0 = bpf_program__attach_usdt(skel->progs.usdt0, in subtest_basic_usdt()
66 if (!ASSERT_OK_PTR(skel->links.usdt0, "usdt0_link")) in subtest_basic_usdt()
71 ASSERT_EQ(bss->usdt0_called, 1, "usdt0_called"); in subtest_basic_usdt()
[all …]
H A Dlink_pinning.c1 // SPDX-License-Identifier: GPL-2.0
23 bss->in = 1; in test_link_pinning_subtest()
25 CHECK(bss->out != 1, "res_check1", "exp %d, got %d\n", 1, bss->out); in test_link_pinning_subtest()
40 bss->in = 2; in test_link_pinning_subtest()
42 CHECK(bss->out != 2, "res_check2", "exp %d, got %d\n", 2, bss->out); in test_link_pinning_subtest()
44 /* destroy link, pinned link should keep program attached */ in test_link_pinning_subtest()
48 bss->in = 3; in test_link_pinning_subtest()
50 CHECK(bss->out != 3, "res_check3", "exp %d, got %d\n", 3, bss->out); in test_link_pinning_subtest()
52 /* re-open link from BPFFS */ in test_link_pinning_subtest()
60 /* unpin link from BPFFS, program still attached */ in test_link_pinning_subtest()
[all …]
/linux/drivers/net/phy/
H A Dphy_link_topology.c1 // SPDX-License-Identifier: GPL-2.0+
4 * either directly or indirectly attached.
20 return -ENOMEM; in netdev_alloc_phy_link_topology()
22 xa_init_flags(&topo->phys, XA_FLAGS_ALLOC1); in netdev_alloc_phy_link_topology()
23 topo->next_phy_index = 1; in netdev_alloc_phy_link_topology()
25 dev->link_topo = topo; in netdev_alloc_phy_link_topology()
34 struct phy_link_topology *topo = dev->link_topo; in phy_link_topo_add_phy()
43 topo = dev->link_topo; in phy_link_topo_add_phy()
48 return -ENOMEM; in phy_link_topo_add_phy()
50 pdn->phy = phy; in phy_link_topo_add_phy()
[all …]
/linux/drivers/gpu/drm/panthor/
H A Dpanthor_gem.h1 /* SPDX-License-Identifier: GPL-2.0 or MIT */
11 #include <linux/iosys-map.h>
17 * struct panthor_gem_object - Driver specific GEM object.
25 * is attached to.
42 * called in a dma-signaling path, where we're not allowed to take
52 * struct panthor_kernel_bo - Kernel buffer object.
65 * @vm: VM this private buffer is attached to.
102 return bo->va_node.start; in panthor_kernel_bo_gpuva()
108 return bo->obj->size; in panthor_kernel_bo_size()
117 if (bo->kmap) in panthor_kernel_bo_vmap()
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/linux/Documentation/arch/arm64/
H A Dasymmetric-32bit.rst2 Asymmetric 32-bit SoCs
7 This document describes the impact of asymmetric 32-bit SoCs on the
8 execution of 32-bit (``AArch32``) applications.
10 Date: 2021-05-17
16 of the CPUs are capable of executing 32-bit user applications. On such
19 ``execve(2)`` of 32-bit ELF binaries, with the latter returning
20 ``-ENOEXEC``. If the mismatch is detected during late onlining of a
21 64-bit-only CPU, then the onlining operation fails and the new CPU is
25 running legacy 32-bit binaries. Unsurprisingly, that doesn't work very
28 It seems inevitable that future SoCs will drop 32-bit support
[all …]
/linux/Documentation/admin-guide/cgroup-v1/
H A Dcgroups.rst6 Documentation/admin-guide/cgroup-v1/cpusets.rst
12 Portions Copyright (c) 2004-2006 Silicon Graphics, Inc.
42 ----------------------
56 schedules a resource or applies per-cgroup limits, but it may be
62 hierarchy, and a set of subsystems; each subsystem has system-specific
63 state attached to each cgroup in the hierarchy. Each hierarchy has
69 User-level code may create and destroy cgroups by name in an
79 access. For example, cpusets (see Documentation/admin-guide/cgroup-v1/cpusets.rst) allow
83 .. _cgroups-why-needed:
86 ----------------------------
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/linux/drivers/mmc/core/
H A Dsdio_io.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2007-2008 Pierre Ossman
21 * sdio_claim_host - exclusively claim a bus for a certain SDIO function
32 mmc_claim_host(func->card->host); in sdio_claim_host()
37 * sdio_release_host - release a bus for a certain SDIO function
48 mmc_release_host(func->card->host); in sdio_release_host()
53 * sdio_enable_func - enables a SDIO function for usage
66 return -EINVAL; in sdio_enable_func()
70 ret = mmc_io_rw_direct(func->card, 0, 0, SDIO_CCCR_IOEx, 0, &reg); in sdio_enable_func()
74 reg |= 1 << func->num; in sdio_enable_func()
[all …]
/linux/drivers/tty/serial/8250/
H A D8250_parisc.c1 // SPDX-License-Identifier: GPL-2.0+
5 * (c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002
18 #include <asm/parisc-device.h>
30 if (!dev->irq && (dev->id.sversion == 0xad)) in serial_init_chip()
31 dev->irq = iosapic_serial_irq(dev); in serial_init_chip()
34 if (!dev->irq) { in serial_init_chip()
38 * the user what they're missing. in serial_init_chip()
40 if (parisc_parent(dev)->id.hw_type != HPHW_IOA) in serial_init_chip()
41 dev_info(&dev->dev, in serial_init_chip()
44 (unsigned long long)dev->hpa.start); in serial_init_chip()
[all …]
/linux/tools/bpf/bpftool/Documentation/
H A Dbpftool-gen.rst1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 bpftool-gen
6 -------------------------------------------------------------------------------
7 tool for BPF code-generation
8 -------------------------------------------------------------------------------
19 *OPTIONS* := { |COMMON_OPTIONS| | { **-L** | **--use-loader** } }
38 The rules of BPF static linking are mostly the same as for user-space
67 automatically attached and resulting BPF links stored for further use by
68 user in pre-allocated fields in skeleton struct. For BPF programs that
69 can't be automatically attached by libbpf, user can attach them manually,
[all …]
/linux/Documentation/filesystems/xfs/
H A Dxfs-delayed-logging-design.rst1 .. SPDX-License-Identifier: GPL-2.0
33 details logged are made up of the changes to in-core structures rather than
34 on-disk structures. Other objects - typically buffers - have their physical
64 place. This means that permanent transactions can be used for one-shot
65 modifications, but one-shot reservations cannot be used for permanent
68 In the code, a one-shot transaction pattern looks somewhat like this::
97 While this might look similar to a one-shot transaction, there is an important
123 the on-disk journal.
165 transaction, we have to reserve enough space to record a full leaf-to-root split
183 For one-shot transactions, a single unit space reservation is all that is
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/linux/Documentation/netlink/specs/
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/networking/
H A Drxrpc.rst1 .. SPDX-License-Identifier: GPL-2.0
7 The RxRPC protocol driver provides a reliable two-phase transport on top of UDP
38 RxRPC is a two-layer protocol. There is a session layer which provides
44 +-------------+
46 +-------------+
48 +-------------+
50 +-------------+
52 +-------------+
60 (2) A two-phase protocol. The client transmits a blob (the request) and then
81 (2) provided with a protocol of the type of underlying transport they're going
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