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/linux/drivers/scsi/arm/
H A Dqueue.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/drivers/acorn/scsi/queue.c: queue handling primitives
5 * Copyright (C) 1997-2000 Russell King
8 * 15-Sep-1997 RMK Created.
9 * 11-Oct-1997 RMK Corrected problem with queue_remove_exclude
12 * 30-Aug-2000 RMK Use Linux list handling and spinlocks
43 #define SET_MAGIC(q,m) ((q)->magic = (m))
44 #define BAD_MAGIC(q,m) ((q)->magic != (m))
50 #include "queue.h"
55 * Function: void queue_initialise (Queue_t *queue)
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/linux/net/tipc/
H A Dlink.c4 * Copyright (c) 1996-2007, 2012-2016, Ericsson AB
5 * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
73 u32 max_queue_sz; /* send queue size high water mark */
74 u32 accu_queue_sz; /* used for send queue size profiling */
75 u32 queue_sz_counts; /* used for send queue size profiling */
82 * struct tipc_link - TIPC link data structure
99 * @backlogq: queue for messages waiting to be sent
103 * @inputq: buffer queue for messages to be delivered upwards
104 * @namedq: buffer queue for name table messages to be delivered upwards
117 * @failover_deferdq: deferred message queue for failover processing (FIXME)
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H A Dbcast.c4 * Copyright (c) 2004-2006, 2014-2017, Ericsson AB
6 * Copyright (c) 2005, 2010-2011, Wind River Systems
48 const char tipc_bclink_name[] = "broadcast-link";
52 * struct tipc_bc_base - base structure for keeping broadcast send state
54 * @inputq: data input queue; will only carry SOCK_WAKEUP messages
79 return tipc_net(net)->bcbase; in tipc_bc_base()
82 /* tipc_bcast_get_mtu(): -get the MTU currently used by broadcast link
93 tipc_bc_base(net)->rcast_support = supp; in tipc_bcast_toggle_rcast()
101 bb->bc_threshold = 1 + (cluster_size * bb->rc_ratio / 100); in tipc_bcbase_calc_bc_threshold()
110 int all_dests = tipc_link_bc_peers(bb->link); in tipc_bcbase_select_primary()
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/linux/drivers/net/fddi/skfp/h/
H A Dfplustm.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
59 struct s_txd_os txd_os ; /* OS - specific struct */
76 struct s_rxd_os rxd_os ; /* OS - specific struct */
104 struct s_smt_fp_rxd volatile *rx_curr_put ; /* next RxD to queue into */
125 #define RX_FIFO_SPACE 0x4000 - RX_FIFO_OFF
130 #define TX_LARGE_FIFO TX_FIFO_SPACE - TX_SMALL_FIFO
133 #define RX_LARGE_FIFO RX_FIFO_SPACE - RX_SMALL_FIFO
138 u_short rx1_fifo_start ; /* rx queue start address */
139 u_short rx1_fifo_size ; /* rx queue size */
140 u_short rx2_fifo_start ; /* rx queue start address */
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H A Dskfbi.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
15 * FDDI-Fx (x := {I(SA), P(CI)})
19 /*--------------------------------------------------------------------------*/
41 /* 0x0001 - 0x0003: reserved */
49 /* 0x0010 - 0x006b: formac+ (supernet_3) fequently used registers */
52 #define B0_ST1U 0x0010 /* read upper 16-bit of status reg 1 */
53 #define B0_ST1L 0x0014 /* read lower 16-bit of status reg 1 */
54 #define B0_ST2U 0x0018 /* read upper 16-bit of status reg 2 */
55 #define B0_ST2L 0x001c /* read lower 16-bit of status reg 2 */
59 #define B0_MDRU 0x0028 /* r/w upper 16-bit of mem. data reg */
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/linux/tools/testing/selftests/drivers/net/hw/
H A Drss_ctx.py2 # SPDX-License-Identifier: GPL-2.0
30 if 'rss-hash-key' not in data:
32 non_zero = [x for x in data['rss-hash-key'] if x != 0]
33 ksft_eq(bool(non_zero), True, comment=f"RSS key is all zero {data['rss-hash-key']}")
37 return ethtool(f"-x {cfg.ifname} context {context}", json=True)[0]
41 stats = ip("-s -s link show dev " + cfg.ifname, json=True)[0]
54 return int(output.split()[-1])
58 features = ethtool(f"-k {cfg.ifname}", json=True)[0]
59 if not features["ntuple-filters"]["active"]:
62 … raise KsftSkipEx("Ntuple filters not enabled on the device: " + str(features["ntuple-filters"]))
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/linux/tools/testing/selftests/drivers/net/netdevsim/
H A Dtc-mq-visibility.sh2 # SPDX-License-Identifier: GPL-2.0-only
4 source ethtool-common.sh
6 set -o pipefail
9 n=$(tc qdisc show dev $NDEV | grep '^qdisc' | wc -l)
10 echo $((n - 1))
19 if [ $n -ne $1 ]; then
40 ethtool -L $NDEV combined $n
47 ethtool -L $NDEV combined $n
53 n_child_assert 4 "One real queue"
55 ethtool -L $NDEV combined 1
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/linux/arch/powerpc/include/asm/
H A Dqspinlock.h1 /* SPDX-License-Identifier: GPL-2.0 */
25 * This is compile-time, so if true then there may always be stealers, so the
35 * is purely FIFO through the queue. May have more benefit in real workload
43 * queue head. Miso is intended to make stores visible to other CPUs sooner.
65 * Seems to slow down lockstorm microbenchmark, suspect queue node just
73 return READ_ONCE(lock->val); in queued_spin_is_locked()
83 return !!(READ_ONCE(lock->val) & _Q_TAIL_CPU_MASK); in queued_spin_is_contended()
101 " bne- 2f \n" in __queued_spin_trylock_nosteal()
103 " bne- 1b \n" in __queued_spin_trylock_nosteal()
107 : "r" (&lock->val), "r" (new), in __queued_spin_trylock_nosteal()
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/linux/net/sched/
H A Dsch_dualpi2.c1 // SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 * Author: Koen De Schepper <koen.de_schepper@nokia-bell-labs.com>
8 * Author: Chia-Yu Chang <chia-y
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/linux/arch/arm/mm/
H A Dcache-uniphier.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2015-2016 Socionext Inc.
15 #include <asm/hardware/cache-uniphier.h>
21 #define UNIPHIER_SSCC_ACT BIT(19) /* Inst-Data separate */
23 #define UNIPHIER_SSCC_PRD BIT(17) /* enable pre-fetch */
37 #define UNIPHIER_SSCOPE_CM_FLUSH_PREFETCH 0x9 /* flush p-fetch buf */
38 #define UNIPHIER_SSCOQM 0x248 /* Cache Operation Queue Mode */
46 #define UNIPHIER_SSCOQAD 0x24c /* Cache Operation Queue Address */
47 #define UNIPHIER_SSCOQSZ 0x250 /* Cache Operation Queue Size */
48 #define UNIPHIER_SSCOPPQSEF 0x25c /* Cache Operation Queue Set Complete*/
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/linux/tools/testing/selftests/net/netfilter/
H A Dnft_queue.sh24 rm -f "$TMPINPUT"
25 rm -f "$TMPFILE0"
26 rm -f "$TMPFILE1"
27 rm -f "$TMPFILE2" "$TMPFILE3"
30 checktool "nft --version" "test without nft tool"
31 checktool "socat -h" "run test without socat"
33 modprobe -q sctp
56 ip -net "$nsrouter" link set veth0 up
57 ip -net "$nsrouter" addr add 10.0.1.1/24 dev veth0
58 ip -net "$nsrouter" addr add dead:1::1/64 dev veth0 nodad
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/linux/lib/
H A Dlwq.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Light-weight single-linked queue.
25 spin_lock(&q->lock); in __lwq_dequeue()
26 this = q->ready; in __lwq_dequeue()
27 if (!this && !llist_empty(&q->new)) { in __lwq_dequeue()
28 /* ensure queue doesn't appear transiently lwq_empty */ in __lwq_dequeue()
29 smp_store_release(&q->ready, (void *)1); in __lwq_dequeue()
30 this = llist_reverse_order(llist_del_all(&q->new)); in __lwq_dequeue()
32 q->ready = NULL; in __lwq_dequeue()
35 q->ready = llist_next(this); in __lwq_dequeue()
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/linux/drivers/virtio/
H A Dvirtio_mmio.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2011-2014, ARM Ltd.
15 * .name = "virtio-mmio",
16 * .id = -1,
39 * 3. Kernel module (or command line) parameter. Can be used more than once -
55 #define pr_fmt(fmt) "virtio-mmio: " fmt
58 #include <linux/dma-mapping.h>
99 writel(1, vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES_SEL); in vm_get_features()
100 features = readl(vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES); in vm_get_features()
103 writel(0, vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES_SEL); in vm_get_features()
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/linux/kernel/locking/
H A Dqspinlock_paravirt.h1 /* SPDX-License-Identifier: GPL-2.0 */
16 * pv_wait(u8 *ptr, u8 val) -- suspends the vcpu if *ptr == val
17 * pv_kick(cpu) -- wakes a suspended vcpu
27 * Queue Node Adaptive Spinning
29 * A queue node vCPU will stop spinning if the vCPU in the previous node is
31 * mitigates the slight slowdown for non-overcommitted guest with this
32 * aggressive wait-early mechanism.
41 * Queue node uses: VCPU_RUNNING & VCPU_HALTED.
42 * Queue head uses: VCPU_RUNNING & VCPU_HASHED.
63 * The pending bit is set by the queue head vCPU of the MCS wait queue in
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/linux/drivers/net/ethernet/broadcom/bnx2x/
H A Dbnx2x_reg.h3 * Copyright (c) 2007-2013 Broadcom Corporation
13 * R - Read only
14 * RC - Clear on read
15 * RW - Read/Write
16 * ST - Statistics register (clear on read)
17 * W - Write only
18 * WB - Wide bus register - the size is over 32 bits and it should be
20 * WR - Write Clear (write 1 to clear the bit)
32 /* [RW 1] Initiate the ATC array - reset all the valid bits */
56 * BRB1_IND_FREE_LIST_PRS_CRDT+2 initialize parser initial credit. Warning -
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/linux/sound/core/seq/oss/
H A Dseq_oss_midi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
43 DEFINE_FREE(seq_oss_midi, struct seq_oss_midi *, if (!IS_ERR_OR_NULL(_T)) snd_use_lock_free(&(_T)->…
74 return -ENOMEM; in snd_seq_oss_midi_lookup_ports()
75 clinfo->client = -1; in snd_seq_oss_midi_lookup_ports()
77 if (clinfo->client == client) in snd_seq_oss_midi_lookup_ports()
79 pinfo->addr.client = clinfo->client; in snd_seq_oss_midi_lookup_ports()
80 pinfo->addr.port = -1; in snd_seq_oss_midi_lookup_ports()
98 snd_use_lock_use(&mdev->use_lock); in get_mdev()
114 if (mdev && mdev->client == client && mdev->port == port) { in find_slot()
116 snd_use_lock_use(&mdev->use_lock); in find_slot()
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/linux/tools/testing/selftests/drivers/net/
H A Dstats.py2 # SPDX-License-Identifier: GPL-2.0
24 def check_pause(cfg) -> None:
31 ethnl.pause_get({"header": {"dev-index": cfg.ifindex}})
37 data = ethnl.pause_get({"header": {"dev-index": cfg.ifindex,
42 def check_fec(cfg) -> None:
49 ethnl.fec_get({"header": {"dev-index": cfg.ifindex}})
55 data = ethnl.fec_get({"header": {"dev-index": cfg.ifindex,
60 def check_fec_hist(cfg) -> Non
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H A Dqueues.py2 # SPDX-License-Identifier: GPL-2.0
15 def sys_get_queues(ifname, qtype='rx') -> int:
16 folders = glob.glob(f'/sys/class/net/{ifname}/queues/{qtype}-*')
27 def check_xsk(cfg, nl, xdp_queue_id=0) -> None:
29 xdp = cmd(f'{cfg.net_lib_dir / "xdp_helper"} - -', fail=False)
52 comment="xsk attr on queue we configured")
55 comment="xsk attr on queue w
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/linux/drivers/net/fddi/skfp/
H A Dfplustm.c1 // SPDX-License-Identifier: GPL-2.0-or-later
33 #define MS2BCLK(x) ((x)*12500L)
34 #define US2BCLK(x) ((x)*1250L)
49 #define DUMMY_READ() smc->hw.mc_dummy = (u_short) inp(ADDR(B0_RAP))
52 while ((inpw(FM_A(FM_STMCHN)) & FM_SNPPND) && k) k--;\
59 while (!(inpw(FM_A(FM_AFSTAT)) & FM_DONE) && k) k--;\
76 #define MA smc->hw.fddi_canon_addr
78 #define MA smc->hw.fddi_home_addr
114 smc->mib.m[MAC0].fddiMACFrame_Ct = in mac_update_counter()
115 (smc->mib.m[MAC0].fddiMACFrame_Ct & 0xffff0000L) in mac_update_counter()
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/linux/drivers/scsi/ibmvscsi_tgt/
H A Dibmvscsi_tgt.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * Copyright (C) 2003-2005 Dave Boutcher (boutcher@us.ibm.com) IBM Corp.
8 * Copyright (C) 2005-2011 FUJITA Tomonori <tomof@acm.org>
59 /* root node property "ibm,partition-no" */
70 #define ADAPT_SUCCESS 0L
72 #define ERROR -40L
82 /* root node property ibm,partition-name */
84 /* root node property ibm,partition-no */
93 * considering the client will never service its queue again.
98 * has freed at least one element in the response queue.
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/linux/tools/testing/selftests/bpf/progs/
H A Dbpf_arena_spin_lock.h1 // SPDX-License-Identifier: GPL-2.0
10 #define arch_mcs_spin_lock_contended_label(l, label) smp_cond_load_acquire_label(l, VAL, label) argument
11 #define arch_mcs_spin_unlock_contended(l) smp_store_release((l), 1) argument
27 * PowerPC overrides the definition to define lock->val as u32 instead of
59 /* FIXME: Using typedef causes CO-RE relocation error */
78 * 0- 7: locked byte
80 * 9-15: not used
81 * 16-17: tail index
82 * 18-31: tail cpu (+1)
86 #define _Q_SET_MASK(type) (((1U << _Q_ ## type ## _BITS) - 1)\
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/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/media/pci/ngene/
H A Dngene-dvb.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * ngene-dvb.c: nGene PCIe bridge driver - DVB functions
5 * Copyright (C) 2005-2007 Micronas
7 * Copyright (C) 2008-2009 Ralph Metzler <rjkm@metzlerbros.de>
9 * support for EEPROM-copying,
10 * support for new dual DVB-S2 card prototype
39 struct dvb_device *dvbdev = file->private_data; in ts_write()
40 struct ngene_channel *chan = dvbdev->priv; in ts_write()
41 struct ngene *dev = chan->dev; in ts_write()
43 if (wait_event_interruptible(dev->tsout_rbuf.queue, in ts_write()
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/linux/drivers/usb/gadget/udc/
H A Domap_udc.c1 // SPDX-License-Identifier: GPL-2.0+
3 * omap_udc.c -- for OMAP full speed udc; most chips support OTG.
6 * Copyright (C) 2004-2005 David Brownell
32 #include <linux/dma-mapping.h>
41 #include <asm/mach-types.h>
43 #include <linux/omap-dma.h>
44 #include <linux/platform_data/usb-omap1.h>
46 #include <linux/soc/ti/omap1-usb.h>
47 #include <linux/soc/ti/omap1-soc.h>
48 #include <linux/soc/ti/omap1-io.h>
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/linux/Documentation/translations/it_IT/process/
H A Dstable-kernel-rules.rst1 .. include:: ../disclaimer-ita.rst
3 :Original: :ref:`Documentation/process/stable-kernel-rules.rst <stable_kernel_rules>`
8 Tutto quello che volevate sapere sui rilasci -stable di Linux
12 "-stable":
14 - Questa patch o una equivalente deve esistere già nei sorgenti principali di
16 - Ovviamente dev'essere corretta e verificata.
17 - Non dev'essere più grande di 100 righe, incluso il contesto.
18 - Deve rispettare le regole scritte in
19 :ref:`Documentation/translations/it_IT/process/submitting-patches.rst <it_submittingpatches>`
20 - Deve correggere un vero baco che causi problemi agli utenti oppure aggiunge
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