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/freebsd/sys/dev/ice/
H A Dice_common_sysctls.h1 /* SPDX-License-Identifier: BSD-3-Clause */
62 * they come from non-HW sources. If false, packets coming from software will
76 * they come from non-HW sources. If false, packets coming from software will
98 * @brief boolean permitting the 5-layer scheduler topology enablement
101 * 5-laye
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/freebsd/share/man/man4/
H A Dhwpmc.41 .\" Copyright (c) 2003-2008 Joseph Koshy
39 .Bd -ragged -offset indent
44 .Bd -ragged -offset indent
49 .Bd -literal -offset indent
54 .Bd -ragged -offset indent
62 .Bd -ragged -offset indent
75 The driver supports multi-processor systems.
89 .Bl -tag -width ".Em Process-scope"
90 .It Em "Process-scope"
93 .It Em "System-scope"
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H A Dvtnet.435 .Bd -ragged -offset indent
42 .Bd -literal -offset indent
66 See the loader tunable
82 .Bl -tag -width "xxxxxx"
85 This tunable disables receive and transmit checksum offloading for TCP and
92 This tunable enforces the calculation of a valid TCP or UDP checksum for
101 This tunable is deprecated and will be removed in
105 This tunable disables TCP segmentation offloading.
109 This tunable disables hardware TCP LRO.
113 This tunable disables multiqueue.
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H A Dnuma.430 .Nd Non-Uniform Memory Access
35 Non-Uniform Memory Access is a computer architecture design which
46 implements NUMA-aware memory allocation policies.
63 tunable to 1.
64 Other values for this tunable are currently ignored.
75 tool is available for starting processes with a non-default
81 Systems with non-uniform access to I/O devices may mark those devices
92 .Bl -tag -width indent -compact
99 A value of -1 means the locality map is not available or no
108 implementation is VM-focused.
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H A Dmxge.442 .Bd -ragged -offset indent
50 .Bd -literal -offset indent
87 .Bl -bullet -compact
89 Myricom 10GBase-CX4 (10G-PCIE-8A-C, 10G-PCIE-8AL-C)
91 Myricom 10GBase-R (10G-PCIE-8A-R, 10G-PCIE-8AL-R)
93 Myricom 10G XAUI over ribbon fiber (10G-PCIE-8A-Q, 10G-PCIE-8AL-Q)
100 .Bl -tag -width indent
112 A non-zero value
116 This tunable has no effect when the device is
117 using MSI or MSI-X interrupts.
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H A Dciss.49 .Nd Common Interface for SCSI-3 Support driver
14 .Bd -ragged -offset indent
22 .Bd -literal -offset indent
36 .%T "CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1" ,
43 offloading most of the queueing and being-a-disk chores onto CAM.
70 Non-disk devices (such as internal DATs and devices
76 tunable to non-zero at boot time.
81 Hot-insertion and removal of devices is supported and notification messages
88 tunable to non-zero at boot time.
93 Common Interface for SCSI-3 Support Open Specification v1.04, including:
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H A Dpci.435 .Bd -ragged -offset indent
40 .Pq SR-IOV :
41 .Bd -ragged -offset indent
45 To compile in support for native PCI-express HotPlug:
46 .Bd -ragged -offset indent
91 or a BAR read access could have function-specific side-effects.
113 driver also includes support for PCI-PCI bridges,
114 various platform-specific Host-PCI bridges,
126 .Bl -tag -width 012345678901234
147 .Bl -tag -width match_buf_len
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H A Dsmp.429 .Nd description of the FreeBSD Symmetric Multi-Processor kernel
35 kernel implements symmetric multi-processor support.
38 support can be disabled by setting the loader tunable
43 the read-only sysctl variable
46 The number of online threads per CPU core is available in the read-only sysctl
50 read-only sysctl variable
54 allows specific CPUs on a multi-processor system to be disabled.
57 tunable, where X is the APIC ID of a CPU.
58 Setting this tunable to 1 will result in the corresponding CPU being
65 tunable to zero.
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H A Dre.415 .\" 4. Neither the name of the author nor the names of any co-contributors
41 .Bd -ragged -offset indent
49 .Bd -literal -offset indent
67 features, and use a descriptor-based DMA mechanism.
71 The 8139C+ is a single-chip solution combining both a 10/100 MAC and PHY.
73 The 816xS, 811xS, 8168 and 8111 are single-chip devices containing both a
76 in both 32-bit PCI and 64-bit PCI models.
78 embedded LAN-on-motherboard applications.
90 .Bl -tag -width ".Cm 10baseT/UTP"
102 .Cm full-duplex
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H A Dhidquirk.427 .Bd -ragged -offset indent
34 .Bd -literal -offset indent
41 .Bl -tag -width Ds
53 mouse has Z-axis reversed
66 .Sh LOADER TUNABLE
67 The following tunable can be set at the
71 .Bl -tag -width indent
74 .Bd -literal -offset indent
114 or the first non-existing one.
120 .Bd -literal -offset indent
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H A Drandom.41 .\" Copyright (c) 2001-2015 Mark R V Murray. All rights reserved.
56 for re-seeding the random device on boot, or accept that the device
69 pseudo-variable
79 .Bd -literal -offset indent
98 all settings are read-only via
138 tunable can be used to enable the entropy source health tests outlined
139 in section 4 of NIST Special Publication 800-90B.
147 .Bl -tag -width ".Pa /dev/urandom"
155 .Bl -tag -width 4
178 When set non-zero, disables warnings in dmesg when the
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H A Dcxgbe.41 .\" Copyright (c) 2011-2016, Chelsio Inc
37 .Nd "Chelsio T4-, T5-, and T6-based 100Gb, 40Gb, 25Gb, 10Gb, and 1Gb Ethernet adapter driver"
42 .Bd -ragged -offset indent
49 .Bd -literal -offset indent
71 .Bl -column -offse
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H A Dsnd_hda.42 .\" SPDX-License-Identifier: BSD-2-Clause
4 .\" Copyright (c) 2006-2008 Joel Dahl <joel@FreeBSD.org>
38 .Bd -ragged -offset indent
46 .Bd -literal -offset indent
93 .Ss Boot-time Configuration
94 The following variables are available at boot-time through the
97 .Bl -tag -width ".Va hint.hdac.%d.config"-offset indent
165 May be specified as a set of space-separated
187 May be specified as a 32-bit hexadecimal value with a leading
189 or as a set of space-separated
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H A Dusb_quirk.427 .Bd -ragged -offset indent
34 .Bd -literal -offset indent
44 .Bl -tag -width Ds
78 mouse has Z-axis reversed
107 .Bl -tag -width Ds
154 .Bl -tag -width Ds
169 ejects after C-motech SCSI command
189 .Sh LOADER TUNABLE
190 The following tunable can be set at the
194 .Bl -tag -width indent
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H A Dmrsas.42 .\" SPDX-License-Identifier: BSD-3-Clause
73 A simple management interface is also provided per-controller via the
108 section to know more about driver priority for MR-Fusion devices.
111 will provide a priority of (-30) (between
120 Solid-state drives (SSD) get ATA TRIM support with
123 This may require configuring SSD as Non-RAID drive
130 .Bl -column -compact "LSI MegaRAID SAS 9380" "Invader/Fury" "12Gb/s"
159 following tunable value in
168 driver instance, set the following tunable value in
173 where NNNNNN is the timeout value in milli-seconds.
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H A Dem.41 .\"-
2 .\" SPDX-License-Identifier: BSD-3-Clause
4 .\" Copyright (c) 2001-2003, Intel Corporation
47 .Bd -ragged -offset indent
55 .Bd -literal -offset indent
61 driver provides support for PCI/PCI-X Gigabit Ethernet adapters based on
86 on all but 82542-based adapters.
114 .Bl -tag -width ".Cm 10baseT/UTP"
116 Enables auto-negotiation for speed and duplex.
122 .Cm full-duplex
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H A Drtwn.41 .\"-
2 .\" SPDX-License-Identifier: ISC
35 .Bd -ragged -offset indent
47 .Bd -literal -offset indent
74 interface can be added (Note: RTL8821AU supports two non-monitor
77 All chips have hardware support for WEP, AES-CCM and TKIP encryption.
88 .Bl -bullet -offset indent -compact
106 .Bl -tag -width "/usr/share/doc/legal/realtek.LICENSE" -compact
117 .Bl -tag -width Ds -offset indent -compact
118 .It Pa /boot/kernel/rtwn-rtl8188eefw.ko
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/freebsd/sys/dev/random/
H A Drandom_infra.c1 /*-
46 * r346250 (and, say, OpenBSD -- although they get some guaranteed saved
52 0, "If set non-zero, bypass the random device in requests for random "
58 * This is a read-only diagnostic that reports the combination of the former
59 * tunable and actual bypass. It is intended for programmatic inspection by
65 &read_random_bypassed_before_seeding, 0, "If non-zero, the random device "
70 * This is a read-only diagnostic that reports the combination of the former
71 * tunable and actual bypass for arc4random initial seeding. It is intended
78 &arc4random_bypassed_before_seeding, 0, "If non-zero, the random device "
91 &random_bypass_disable_warnings, 0, "If non-zero, do not log a warning "
/freebsd/sys/x86/include/xen/
H A Dxen-os.h2 * x86/xen/xen-os.h
32 #error "do not #include machine/xen/xen-os.h, #include xen/xen-os.h instead"
35 /* Shared memory needs write-back as its cache attribute for coherency. */
43 /* If non-zero, the hypervisor has been configured to use a direct vector */
49 /* tunable for disabling PV disks */
52 /* tunable for disabling PV nics */
69 return (pcpu_find(cpuid)->pc_vcpu_id); in XEN_CPUID_TO_VCPUID()
/freebsd/lib/libsys/
H A Dsendfile.269 .Bd -literal -offset indent -compact
83 .Pf non- Dv NULL ,
97 .Pf non- Dv NULL ,
105 .Bl -tag -offset indent -width "SF_USER_READAHEAD"
162 When using a socket marked for non-blocking I/O,
189 .Bd -literal -offset indent -compact
217 is "zero-copy", meaning that it has been optimized so that copying of the file data is avoided.
228 tunable and can be checked with
244 If the sending socket is non-blocking and there are not enough
270 kernel configuration tunable.
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/freebsd/sys/contrib/openzfs/tests/zfs-tests/include/
H A Dlibtest.shlib1 # SPDX-License-Identifier: CDDL-1.0
10 # or https://opensource.org/licenses/CDDL-1.0.
30 # Copyright (c) 2017, Open-E Inc. All rights reserved.
46 PWD="$(readlink -f $PWD)"
53 if [ -n "$STF_PATH" ]; then
64 [ "$(printf "$1\n$2" | sort -V | tail -n1)" = "$1" ]
74 [ -z "$ver" ] && case "$UNAME" in
78 # RHEL7: 3.10.0-1160.108.1.el7.x86_64
79 # Fedora 37: 6.5.12-100.fc37.x86_64
80 # Debian 12.6: 6.1.0-22-amd64
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/freebsd/sys/dev/isci/
H A Disci_controller.c1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
6 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
99 isci_controller->is_started = TRUE; in scif_cb_controller_start_complete()
101 /* Set bits for all domains. We will clear them one-by-one once in scif_cb_controller_start_complete()
106 isci_controller->initial_discovery_mask = (1 << SCI_MAX_DOMAINS) - 1; in scif_cb_controller_start_complete()
111 isci_controller->domain[index].sci_object; in scif_cb_controller_start_complete()
122 isci_controller, &isci_controller->domain[index]); in scif_cb_controller_start_complete()
148 isci_controller->is_started = FALSE; in scif_cb_controller_stop_complete()
183 if (!sci_pool_empty(isci_controller->unmap_buffer_pool)) { in scif_cb_controller_allocate_memory()
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/freebsd/sys/dev/iavf/
H A Diavf_sysctls_common.h1 /* SPDX-License-Identifier: BSD-3-Clause */
55 * @remark Head writeback has been deprecated and will only work on 700-series
73 "Display debug statements that are printed in non-shared code");
108 * iavf_save_tunables - Sanity check and save off tunable values
117 device_t dev = sc->dev; in iavf_save_tunables()
120 /* Save tunable information */ in iavf_save_tunables()
121 sc->dbg_mask = (enum iavf_dbg_mask)iavf_core_debug_mask; in iavf_save_tunables()
122 sc->hw.debug_mask = iavf_shared_debug_mask; in iavf_save_tunables()
126 sc->vsi.enable_head_writeback = !!(iavf_enable_head_writeback); in iavf_save_tunables()
130 sc->vsi.enable_head_writeback = 0; in iavf_save_tunables()
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/freebsd/sys/contrib/openzfs/man/man4/
H A Dzfs.41 .\" SPDX-License-Identifier: CDDL-1.0
11 .\" usr/src/OPENSOLARIS.LICENSE or https://opensource.org/licenses/CDDL-1.0.
31 .Bl -tag -width Ds
98 Turbo L2ARC warm-up.
175 Percent of ARC size allowed for L2ARC-only headers.
248 of a top-level vdev before moving on to the next top-level vdev.
251 Enable metaslab groups biasing based on their over- or under-utilization
260 Setting to 1 equals to 2 if the pool is write-bound or 0 otherwise.
313 if not page-aligned instead of silently falling back to uncached I/O.
316 When attempting to log an output nvlist of an ioctl in the on-disk history,
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/freebsd/sys/kern/
H A Dsubr_param.c1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
88 int maxusers; /* base tunable */
92 int maxfilesperproc; /* per-proc open files limit */
176 * arm64 and riscv currently hard-code the thread0 kstack size in init_param1()
177 * to KSTACK_PAGES, ignoring the tunable. in init_param1()
181 hz = -1; in init_param1()
183 if (hz == -1) in init_param1()
201 ticksl = INT_MAX - (hz * 10 * 60); in init_param1()
250 const int ngroups_max_max = (1 << 24) - 1; in init_param1()
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