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/Linux-v5.10/Documentation/driver-api/md/
Draid5-cache.rst8 since 4.4) or write-back mode (supported since 4.10). mdadm (supported since
11 in write-through mode. A user can switch it to write-back mode by::
13 echo "write-back" > /sys/block/md0/md/journal_mode
15 And switch it back to write-through mode by::
30 tries to resync the array to bring it back to normal state. But before the
47 write-back mode
50 write-back mode fixes the 'write hole' issue too, since all write data is
51 cached on cache disk. But the main goal of 'write-back' cache is to speed up
56 overhead too. Write-back cache will aggregate the data and flush the data to
61 In write-back mode, MD reports IO completion to upper layer (usually
[all …]
/Linux-v5.10/include/linux/
Damd-iommu.h14 * This is mainly used to communicate information back-and-forth
94 * amd_iommu_set_invalid_ppr_cb() - Register a call-back for failed
96 * @pdev: The PCI device the call-back should be registered for
97 * @cb: The call-back function
99 * The IOMMUv2 driver invokes this call-back when it is unable to
102 * the call-back are:
104 * - AMD_IOMMU_INV_PRI_RSP_SUCCESS - Send SUCCESS back to the device
105 * - AMD_IOMMU_INV_PRI_RSP_INVALID - Send INVALID back to the device
106 * - AMD_IOMMU_INV_PRI_RSP_FAIL - Send Failure back to the device,
158 * amd_iommu_set_invalidate_ctx_cb() - Register a call-back for invalidating
[all …]
/Linux-v5.10/tools/perf/pmu-events/arch/x86/icelake/
Dfrontend.json154 …ered to by the Instruction Decode Queue (IDQ) to the back-end of the pipeline when there was no ba…
165 …livered by the Instruction Decode Queue (IDQ) to the back-end of the pipeline when there was no ba…
177 …livered by the Instruction Decode Queue (IDQ) to the back-end of the pipeline when there was no ba…
185 …ption": "Cycles when optimal number of uops was delivered to the back-end when the back-end is not…
277 …ont-end delivered no uops for a period of 2 cycles which was not interrupted by a back-end stall.",
286 …ont-end delivered no uops for a period of 2 cycles which was not interrupted by a back-end stall.",
292 …ont-end delivered no uops for a period of 4 cycles which was not interrupted by a back-end stall.",
301 …ont-end delivered no uops for a period of 4 cycles which was not interrupted by a back-end stall.",
307 …"PublicDescription": "Counts retired instructions that are delivered to the back-end after a front…
316 …ont-end delivered no uops for a period of 8 cycles which was not interrupted by a back-end stall.",
[all …]
/Linux-v5.10/drivers/net/ethernet/netronome/nfp/crypto/
Dtls.c189 return &req->back; in nfp_net_tls_set_ipv4()
209 return &req->back; in nfp_net_tls_set_ipv6()
214 struct nfp_crypto_req_add_back *back, struct sock *sk, in nfp_net_tls_set_l4() argument
222 back->src_port = 0; in nfp_net_tls_set_l4()
223 back->dst_port = 0; in nfp_net_tls_set_l4()
225 back->src_port = inet->inet_dport; in nfp_net_tls_set_l4()
226 back->dst_port = inet->inet_sport; in nfp_net_tls_set_l4()
273 struct nfp_crypto_req_add_back *back; in nfp_net_tls_add() local
328 back = nfp_net_tls_set_ipv6(nn, req, sk, direction); in nfp_net_tls_add()
330 back = nfp_net_tls_set_ipv4(nn, req, sk, direction); in nfp_net_tls_add()
[all …]
/Linux-v5.10/Documentation/fb/
Dviafb.modes19 # Back Porch 1.907 us 1.048 ms
44 # Back Porch 3.810 us 0.427 ms
65 # Back Porch 2.222 us 0.578 ms
86 # Back Porch 2.409 us 0.475 ms
107 # Back Porch 1.984 us 0.496 ms
128 # Back Porch 3.274 us 0.462 ms
149 # Back Porch 3.245 us 435.949 us
170 # Back Porch 2.939 us 0.459 ms
191 # Back Porch 2.200 us 0.607 ms
213 # Back Porch 3.232 us 0.448 ms
[all …]
/Linux-v5.10/drivers/net/ethernet/intel/ice/
Dice_fltr.c57 return ice_add_mac(&vsi->back->hw, list); in ice_fltr_add_mac_list()
68 return ice_remove_mac(&vsi->back->hw, list); in ice_fltr_remove_mac_list()
79 return ice_add_vlan(&vsi->back->hw, list); in ice_fltr_add_vlan_list()
90 return ice_remove_vlan(&vsi->back->hw, list); in ice_fltr_remove_vlan_list()
101 return ice_add_eth_mac(&vsi->back->hw, list); in ice_fltr_add_eth_list()
112 return ice_remove_eth_mac(&vsi->back->hw, list); in ice_fltr_remove_eth_list()
121 ice_remove_vsi_fltr(&vsi->back->hw, vsi->idx); in ice_fltr_remove_all()
145 return ice_fltr_add_entry_to_list(ice_pf_to_dev(vsi->back), &info, in ice_fltr_add_mac_to_list()
169 return ice_fltr_add_entry_to_list(ice_pf_to_dev(vsi->back), &info, in ice_fltr_add_vlan_to_list()
199 return ice_fltr_add_entry_to_list(ice_pf_to_dev(vsi->back), &info, in ice_fltr_add_eth_to_list()
[all …]
/Linux-v5.10/tools/testing/selftests/bpf/benchs/
Drun_bench_ringbufs.sh43 header "Single-producer, back-to-back mode"
49 header "Ringbuf back-to-back, effect of sample rate"
53 header "Perfbuf back-to-back, effect of sample rate"
58 header "Ringbuf back-to-back, reserve+commit vs output"
/Linux-v5.10/drivers/mmc/host/
Dsdhci-bcm-kona.c54 struct mutex write_lock; /* protect back to back writes */
83 * Back-to-Back register write needs a delay of 1ms at bootup (min 10uS) in sdhci_bcm_kona_sd_reset()
84 * Back-to-Back writes to same register needs delay when SD bus clock in sdhci_bcm_kona_sd_reset()
108 * Back-to-Back register write needs a delay of 1ms at bootup (min 10uS) in sdhci_bcm_kona_sd_init()
109 * Back-to-Back writes to same register needs delay when SD bus clock in sdhci_bcm_kona_sd_init()
130 * Back-to-Back register write needs a delay of min 10uS. in sdhci_bcm_kona_sd_card_emulate()
131 * Back-to-Back writes to same register needs delay when SD bus clock in sdhci_bcm_kona_sd_card_emulate()
/Linux-v5.10/fs/erofs/
Dnamei.c51 int head, back; in find_target_dirent() local
57 back = ndirents - 1; in find_target_dirent()
60 while (head <= back) { in find_target_dirent()
61 const int mid = head + (back - head) / 2; in find_target_dirent()
82 back = mid - 1; in find_target_dirent()
95 int head, back; in find_target_block_classic() local
101 back = erofs_inode_datablocks(dir) - 1; in find_target_block_classic()
103 while (head <= back) { in find_target_block_classic()
104 const int mid = head + (back - head) / 2; in find_target_block_classic()
155 back = mid - 1; in find_target_block_classic()
/Linux-v5.10/tools/power/pm-graph/config/
Dfreeze-callgraph.cfg54 # Back to Back Suspend/Resume
55 # Run two suspend/resumes back to back (default: false)
58 # Back to Back Suspend Delay
Dfreeze-dev.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dfreeze.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dstandby-callgraph.cfg54 # Back to Back Suspend/Resume
55 # Run two suspend/resumes back to back (default: false)
58 # Back to Back Suspend Delay
Dstandby-dev.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dstandby.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dsuspend-dev.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dsuspend-x2-proc.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dsuspend.cfg53 # Back to Back Suspend/Resume
54 # Run two suspend/resumes back to back (default: false)
57 # Back to Back Suspend Delay
Dsuspend-callgraph.cfg54 # Back to Back Suspend/Resume
55 # Run two suspend/resumes back to back (default: false)
58 # Back to Back Suspend Delay
/Linux-v5.10/drivers/staging/comedi/drivers/
Dcomedi_8255.c181 * @io: (optional) register I/O call-back function
182 * @regbase: offset of 8255 registers from dev->iobase, or call-back context
186 * If the optional I/O call-back function is provided, its prototype is of
197 * If the optional I/O call-back function is not provided, an internal
198 * call-back function is used which uses consecutive I/O port addresses
216 * @io: (optional) register I/O call-back function
217 * @regbase: offset of 8255 registers from dev->mmio, or call-back context
221 * If the optional I/O call-back function is provided, its prototype is of
232 * If the optional I/O call-back function is not provided, an internal
233 * call-back function is used which uses consecutive MMIO virtual addresses
[all …]
/Linux-v5.10/tools/testing/selftests/bpf/verifier/
Dcfg.c39 "loop (back-edge)",
45 .errstr_unpriv = "back-edge",
49 "loop2 (back-edge)",
58 .errstr_unpriv = "back-edge",
71 .errstr_unpriv = "back-edge",
/Linux-v5.10/tools/perf/pmu-events/arch/arm64/
Darmv8-recommended.json39 "PublicDescription": "Attributable Level 1 data cache Write-Back, victim",
42 "BriefDescription": "L1D cache Write-Back, victim"
45 "PublicDescription": "Level 1 data cache Write-Back, cleaning and coherency",
48 "BriefDescription": "L1D cache Write-Back, cleaning and coherency"
105 "PublicDescription": "Attributable Level 2 data cache Write-Back, victim",
108 "BriefDescription": "L2D cache Write-Back, victim"
111 "PublicDescription": "Level 2 data cache Write-Back, cleaning and coherency",
114 "BriefDescription": "L2D cache Write-Back, cleaning and coherency"
435 "PublicDescription": "Attributable Level 3 data or unified cache Write-Back, victim",
438 "BriefDescription": "Attributable Level 3 data or unified cache Write-Back, victim"
[all …]
/Linux-v5.10/Documentation/scsi/
Dsd-parameters.rst16 write back 1 0 on on
17 write back, no read (daft) 1 1 on off
20 To set cache type to "write back" and save this setting to the drive::
22 # echo "write back" > cache_type
27 # echo "temporary write back" > cache_type
/Linux-v5.10/drivers/net/ethernet/stmicro/stmmac/
Ddwmac4_descs.h46 /* TDES3 (write back format) */
83 /* TDS3 use for both format (read and write back) */
89 /* RDES0 (write back format) */
92 /* RDES1 (write back format) */
107 /* RDES2 (write back format) */
121 /* RDES3 (write back format) */
144 /* TDS3 use for both format (read and write back) */
/Linux-v5.10/arch/m68k/include/asm/
Dtraps.h142 /* bits for 68040 write back status word */
222 unsigned short wb3s; /* write back 3 status */
223 unsigned short wb2s; /* write back 2 status */
224 unsigned short wb1s; /* write back 1 status */
226 unsigned long wb3a; /* write back 3 address */
227 unsigned long wb3d; /* write back 3 data */
228 unsigned long wb2a; /* write back 2 address */
229 unsigned long wb2d; /* write back 2 data */
230 unsigned long wb1a; /* write back 1 address */
231 unsigned long wb1dpd0; /* write back 1 data/push data 0*/

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