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/openbmc/linux/arch/arm64/boot/dts/microchip/
H A Dsparx5_pcb135_board.dtsi376 microchip,bandwidth = <1000>;
383 microchip,bandwidth = <1000>;
390 microchip,bandwidth = <1000>;
397 microchip,bandwidth = <1000>;
404 microchip,bandwidth = <1000>;
411 microchip,bandwidth = <1000>;
418 microchip,bandwidth = <1000>;
425 microchip,bandwidth = <1000>;
432 microchip,bandwidth = <1000>;
439 microchip,bandwidth = <1000>;
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/openbmc/linux/drivers/firewire/
H A Dcore-iso.c5 * - Isochronous bus resource management (channels, bandwidth), client side
201 * Isochronous bus resource management (channels, bandwidth), client side
205 int bandwidth, bool allocate) in manage_bandwidth() argument
216 new = allocate ? old - bandwidth : old + bandwidth; in manage_bandwidth()
227 /* A generation change frees all bandwidth. */ in manage_bandwidth()
228 return allocate ? -EAGAIN : bandwidth; in manage_bandwidth()
232 return bandwidth; in manage_bandwidth()
308 * fw_iso_resource_manage() - Allocate or deallocate a channel and/or bandwidth
313 * @bandwidth: pointer for returning bandwidth allocation result
316 * In parameters: card, generation, channels_mask, bandwidth, allocate
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/openbmc/linux/sound/firewire/
H A Diso-resources.c55 /* convert to bandwidth units (quadlets at S1600 = bytes at S400) */ in packet_bandwidth()
69 * 88.3 + N * 24.3 in bandwidth units. in current_bandwidth_overhead()
91 * fw_iso_resources_allocate - allocate isochronous channel and bandwidth
96 * This function allocates one isochronous channel and enough bandwidth for the
109 int bandwidth, channel, err; in fw_iso_resources_allocate() local
114 r->bandwidth = packet_bandwidth(max_payload_bytes, speed); in fw_iso_resources_allocate()
128 bandwidth = r->bandwidth + r->bandwidth_overhead; in fw_iso_resources_allocate()
130 &channel, &bandwidth, true); in fw_iso_resources_allocate()
167 int bandwidth, channel; in fw_iso_resources_update() local
181 bandwidth = r->bandwidth + r->bandwidth_overhead; in fw_iso_resources_update()
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/openbmc/qemu/tests/migration/guestperf/
H A Dcomparison.py42 # Looking at use of post-copy in relation to bandwidth
44 Comparison("post-copy-bandwidth", scenarios = [
46 post_copy=True, bandwidth=12),
48 post_copy=True, bandwidth=37),
50 post_copy=True, bandwidth=125),
52 post_copy=True, bandwidth=1250),
54 post_copy=True, bandwidth=12500),
84 # Looking at use of auto-converge in relation to bandwidth
86 Comparison("auto-converge-bandwidth", scenarios = [
88 auto_converge=True, bandwidth=12),
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/openbmc/linux/drivers/thunderbolt/
H A Dtunnel.h32 * @maximum_bandwidth: Returns maximum possible bandwidth for this tunnel
33 * @allocated_bandwidth: Return how much bandwidth is allocated for the tunnel
34 * @alloc_bandwidth: Change tunnel bandwidth allocation
35 * @consumed_bandwidth: Return how much bandwidth the tunnel consumes
36 * @release_unused_bandwidth: Release all unused bandwidth
37 * @reclaim_available_bandwidth: Reclaim back available bandwidth
40 * @max_up: Maximum upstream bandwidth (Mb/s) available for the tunnel.
41 * Only set if the bandwidth needs to be limited.
42 * @max_down: Maximum downstream bandwidth (Mb/s) available for the tunnel.
43 * Only set if the bandwidth needs to be limited.
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H A Dtb.c22 * Minimum bandwidth (in Mb/s) that is needed in the single transmitter/receiver
23 * direction. This is 40G - 10% guard band bandwidth.
28 * Threshold bandwidth (in Mb/s) that is used to switch the links to
55 * @groups: Bandwidth groups used in this domain.
100 tb_port_dbg(in, "attached to bandwidth group %d\n", group->index); in tb_bandwidth_group_attach_port()
149 tb_port_warn(in, "no available bandwidth groups\n"); in tb_attach_bandwidth_group()
180 tb_port_dbg(in, "detached from bandwidth group %d\n", group->index); in tb_detach_bandwidth_group()
653 * tb_consumed_usb3_pcie_bandwidth() - Consumed USB3/PCIe bandwidth over a single link
657 * @port: USB4 port the consumed bandwidth is calculated
658 * @consumed_up: Consumed upsream bandwidth (Mb/s)
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H A Dtunnel.c65 * Reserve additional bandwidth for USB 3.x and PCIe bulk traffic
81 "enable bandwidth allocation mode if supported (default: true)");
383 * tb_tunnel_reserved_pci() - Amount of bandwidth to reserve for PCIe
385 * @reserved_up: Upstream bandwidth in Mb/s to reserve
386 * @reserved_down: Downstream bandwidth in Mb/s to reserve
389 * bandwidth needs to be left in reserve for possible PCIe bulk traffic.
666 "DP IN maximum supported bandwidth %u Mb/s x%u = %u Mb/s\n", in tb_dp_xchg_caps()
670 * If the tunnel bandwidth is limited (max_bw is set) then see in tb_dp_xchg_caps()
671 * if we need to reduce bandwidth to fit there. in tb_dp_xchg_caps()
677 "DP OUT maximum supported bandwidth %u Mb/s x%u = %u Mb/s\n", in tb_dp_xchg_caps()
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/openbmc/linux/drivers/net/ethernet/intel/ixgbe/
H A Dixgbe_dcb.h26 /* Error in bandwidth group allocation */
28 /* Error in traffic class bandwidth allocation */
32 /* Link strict traffic class has non zero bandwidth */
34 /* Link strict bandwidth group has non zero bandwidth */
36 /* Traffic class has zero bandwidth */
73 /* Traffic class bandwidth allocation per direction */
75 u8 bwg_id; /* Bandwidth Group (BWG) ID */
76 u8 bwg_percent; /* % of BWG's bandwidth */
77 u8 link_percent; /* % of link bandwidth */
114 u32 link_speed; /* For bandwidth allocation validation purpose */
/openbmc/linux/Documentation/scheduler/
H A Dsched-bwc.rst2 CFS Bandwidth Control
6 This document only discusses CPU bandwidth control for SCHED_NORMAL.
9 CFS bandwidth control is a CONFIG_FAIR_GROUP_SCHED extension which allows the
10 specification of the maximum CPU bandwidth available to a group or hierarchy.
12 The bandwidth allowed for a group is specified using a quota and period. Within
21 cfs_quota units at each period boundary. As threads consume this bandwidth it
30 Traditional (UP-EDF) bandwidth control is something like:
89 bandwidth restriction in place, such a group is described as an unconstrained
90 bandwidth group. This represents the traditional work-conserving behavior for
94 enact the specified bandwidth limit. The minimum quota allowed for the quota or
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H A Dsched-deadline.rst11 2.2 Bandwidth reclaiming
17 4. Bandwidth management
42 algorithm, augmented with a mechanism (called Constant Bandwidth Server, CBS)
62 "admission control" strategy (see Section "4. Bandwidth management") is used
67 interference between different tasks (bandwidth isolation), while the EDF[1]
125 2.2 Bandwidth reclaiming
128 Bandwidth reclaiming for deadline tasks is based on the GRUB (Greedy
129 Reclamation of Unused Bandwidth) algorithm [15, 16, 17] and it is enabled
164 bandwidth cannot be immediately reclaimed without breaking the
167 the 0-lag time, when the task's bandwidth can be reclaimed without
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H A Dsched-rt-group.rst43 the amount of bandwidth (eg. CPU time) being constant. In order to schedule
90 The scheduling period that is equivalent to 100% CPU bandwidth
95 processes. With CONFIG_RT_GROUP_SCHED it signifies the total bandwidth
114 By default all bandwidth is assigned to the root group and new groups get the
116 want to assign bandwidth to another group, reduce the root group's bandwidth
120 bandwidth to the group before it will accept realtime tasks. Therefore you will
130 CPU bandwidth to task groups.
158 Consider two sibling groups A and B; both have 50% bandwidth, but A's
/openbmc/linux/Documentation/admin-guide/perf/
H A Dhisi-pcie-pmu.rst6 bandwidth, latency, bus utilization and buffer occupancy data of PCIe.
75 "bdf" filter can only be used in bandwidth events, target Endpoint is
76 selected by configuring BDF to "bdf". Counter only counts the bandwidth of
90 only be used in bandwidth events.
104 "thr_mode". This filter can only be used in bandwidth events.
116 When counting bandwidth, the data can be composed of certain parts of TLP
120 - 2'b01: Bandwidth of TLP payloads
121 - 2'b10: Bandwidth of TLP headers
122 - 2'b11: Bandwidth of both TLP payloads and headers
124 For example, "len_mode=2" means only counting the bandwidth of TLP headers
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H A Dalibaba_pmu.rst30 - Group 1: PMU Bandwidth Counters. This group has 8 counters that are used
54 interface, we could calculate the bandwidth. Example usage of counting memory
55 data bandwidth::
91 Example usage of counting all memory read/write bandwidth by metric::
96 The average DRAM bandwidth can be calculated as follows:
98 - Read Bandwidth = perf_hif_rd * DDRC_WIDTH * DDRC_Freq / DDRC_Cycle
99 - Write Bandwidth = (perf_hif_wr + perf_hif_rmw) * DDRC_WIDTH * DDRC_Freq / DDRC_Cycle
/openbmc/linux/tools/testing/selftests/tc-testing/tc-tests/qdiscs/
H A Dcake.json18 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate non…
27 "name": "Create CAKE with bandwidth limit",
38 "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake bandwidth 1000",
41 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth 1Kbit diffserv3 triple-isolate nonat n…
64 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited autorate-ingress diffserv3 t…
87 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate non…
110 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited besteffort triple-isolate no…
133 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv8 triple-isolate non…
156 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv4 triple-isolate non…
179 …"matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 flowblind nonat no…
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H A Dchoke.json15 "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000",
38 …"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000 min 100",
61 …"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000 max 900",
84 … "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000 ecn",
107 …"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000 burst 10…
129 "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000"
152 "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000"
154 …"cmdUnderTest": "$TC qdisc replace dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000 min …
176 "$TC qdisc add dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000"
178 …"cmdUnderTest": "$TC qdisc change dev $DUMMY handle 1: root choke limit 1000 bandwidth 10000 min 1…
/openbmc/linux/drivers/usb/host/
H A Dxhci-mtk.h28 * bandwidth to it.
34 * @fs_bus_bw: array to keep track of bandwidth already used for FS
43 * struct mu3h_sch_bw_info: schedule information for bandwidth domain
45 * @bus_bw: array to keep track of bandwidth already used at each uframes
47 * treat a HS root port as a bandwidth domain, but treat a SS root port as
48 * two bandwidth domains, one for IN eps and another for OUT eps.
61 * @bw_cost_per_microframe: bandwidth cost per microframe
63 * @endpoint: linked into bandwidth domain which it belongs to
65 * @bw_info: bandwidth domain which this endpoint belongs
70 * @allocated: the bandwidth is aready allocated from bus_bw
/openbmc/linux/tools/perf/pmu-events/arch/powerpc/power9/
H A Dnest_metrics.json31 "MetricGroup" : "memory-bandwidth",
37 "MetricGroup" : "memory-bandwidth",
43 "MetricGroup" : "memory-bandwidth",
49 "MetricGroup" : "memory-bandwidth",
59 "MetricName" : "Memory-bandwidth-MCS",
60 "MetricGroup" : "memory-bandwidth",
/openbmc/linux/drivers/gpu/drm/bridge/
H A Dcros-ec-anx7688.c61 /* Read both regs 0x85 (bandwidth) and 0x86 (lane count). */ in cros_ec_anx7688_bridge_mode_fixup()
64 DRM_ERROR("Failed to read bandwidth/lane count\n"); in cros_ec_anx7688_bridge_mode_fixup()
70 /* Maximum 0x19 bandwidth (6.75 Gbps Turbo mode), 2 lanes */ in cros_ec_anx7688_bridge_mode_fixup()
72 DRM_ERROR("Invalid bandwidth/lane count (%02x/%d)\n", dpbw, in cros_ec_anx7688_bridge_mode_fixup()
77 /* Compute available bandwidth (kHz) */ in cros_ec_anx7688_bridge_mode_fixup()
80 /* Required bandwidth (8 bpc, kHz) */ in cros_ec_anx7688_bridge_mode_fixup()
83 DRM_DEBUG_KMS("DP bandwidth: %d kHz (%02x/%d); mode requires %d Khz\n", in cros_ec_anx7688_bridge_mode_fixup()
87 DRM_ERROR("Bandwidth/lane count are 0, not rejecting modes\n"); in cros_ec_anx7688_bridge_mode_fixup()
148 /* FW version >= 0.85 supports bandwidth/lane count registers */ in cros_ec_anx7688_bridge_probe()
/openbmc/linux/Documentation/arch/x86/
H A Dresctrl.rst25 MBM (Memory Bandwidth Monitoring) "cqm_mbm_total", "cqm_mbm_local"
26 MBA (Memory Bandwidth Allocation) "mba"
27 SMBA (Slow Memory Bandwidth Allocation) ""
28 BMEC (Bandwidth Monitoring Event Configuration) ""
48 bandwidth in MBps
128 Memory bandwidth(MB) subdirectory contains the following files
132 The minimum memory bandwidth percentage which
136 The granularity in which the memory bandwidth
140 available bandwidth control steps are:
151 request different memory bandwidth percentages:
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/openbmc/linux/Documentation/devicetree/bindings/net/
H A Dmicrochip,sparx5-switch.yaml100 microchip,bandwidth:
101 description: Specifies bandwidth in Mbit/s allocated to the port.
118 - microchip,bandwidth
156 microchip,bandwidth = <1000>;
165 microchip,bandwidth = <25000>;
174 microchip,bandwidth = <25000>;
183 microchip,bandwidth = <25000>;
192 microchip,bandwidth = <25000>;
202 microchip,bandwidth = <1000>;
/openbmc/linux/include/linux/
H A Dresctrl.h61 * @mbm_total: saved state for MBM total bandwidth
62 * @mbm_local: saved state for MBM local bandwidth
110 * enum membw_throttle_mode - System's memory bandwidth throttling mode
112 * @THREAD_THROTTLE_MAX: Memory bandwidth is throttled at the core
113 * always using smallest bandwidth percentage
115 * @THREAD_THROTTLE_PER_THREAD: Memory bandwidth is throttled at the thread
124 * struct resctrl_membw - Memory bandwidth allocation related data
125 * @min_bw: Minimum memory bandwidth percentage user can request
126 * @bw_gran: Granularity at which the memory bandwidth is allocated
129 * @throttle_mode: Bandwidth throttling mode when threads request
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/openbmc/linux/tools/perf/pmu-events/arch/x86/jaketown/
H A Duncore-interconnect.json363 …nes, decreasing our bandwidth in order to save power. It increases snoop and data transfer latenc…
475 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
484 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
493 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
502 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
511 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
520 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
529 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
538 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
547 …bandwidth of the link by taking: flits*80b/time. Note that this is not the same as 'data' bandwid…
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/openbmc/linux/arch/x86/include/asm/
H A Dvmware.h12 * number to distinguish between high- and low bandwidth versions.
15 * bandwidth mode and transfer direction. The flags should be loaded
31 /* The low bandwidth call. The low word of edx is presumed clear. */
39 * The high bandwidth out call. The low word of edx is presumed to have the
49 * The high bandwidth in call. The low word of edx is presumed to have the
/openbmc/linux/arch/x86/kernel/cpu/resctrl/
H A Dmonitor.c427 * Supporting function to calculate the memory bandwidth
428 * and delta bandwidth in MBps. The chunks value previously read by
488 * adjust the bandwidth percentage values via the IA32_MBA_THRTL_MSRs so
491 * current bandwidth(cur_bw) < user specified bandwidth(user_bw)
493 * This uses the MBM counters to measure the bandwidth and MBA throttle
494 * MSRs to control the bandwidth for a particular rdtgrp. It builds on the
498 * timer. Having 1s interval makes the calculation of bandwidth simpler.
500 * Although MBA's goal is to restrict the bandwidth to a maximum, there may
501 * be a need to increase the bandwidth to avoid unnecessarily restricting
504 * Since MBA controls the L2 external bandwidth where as MBM measures the
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/openbmc/linux/drivers/media/tuners/
H A Dsi2157.c450 u32 bandwidth; in si2157_set_params() local
463 bandwidth = 1700000; in si2157_set_params()
466 bandwidth = 6000000; in si2157_set_params()
469 bandwidth = 6100000; in si2157_set_params()
472 bandwidth = 7000000; in si2157_set_params()
475 bandwidth = 8000000; in si2157_set_params()
555 dev->bandwidth = bandwidth; in si2157_set_params()
562 dev->bandwidth = 0; in si2157_set_params()
577 u32 bandwidth = 0; in si2157_set_analog_params() local
602 * bandwidth = 1700000; //best can do for FM, AGC will be a mess though in si2157_set_analog_params()
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