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/linux/drivers/net/ethernet/engleder/
H A Dtsnep_main.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2021 Gerhard Engleder <gerhard@engleder-embedded.com> */
6 * The TSN endpoint Ethernet MAC is a FPGA based network device for real-time
10 * It supports multiple TX/RX queue pairs. The first TX/RX queue pair is used
14 * - www.embedded-experts.at/tsn
15 * - www.engleder-embedded.com
36 #define TSNEP_MAX_RX_BUF_SIZE (PAGE_SIZE - TSNEP_HEADROOM - \
38 /* XSK buffer shall store at least Q-in-Q frame */
52 ECM_INT_DELAY_BASE_US + ECM_INT_DELAY_BASE_US - 1)
78 iowrite32(mask, adapter->addr + ECM_INT_ENABLE); in tsnep_enable_irq()
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H A Dtsnep_ethtool.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2021 Gerhard Engleder <gerhard@engleder-embedded.com> */
83 strscpy(drvinfo->driver, TSNEP, sizeof(drvinfo->driver)); in tsnep_ethtool_get_drvinfo()
84 strscpy(drvinfo->bus_info, dev_name(&adapter->pdev->dev), in tsnep_ethtool_get_drvinfo()
85 sizeof(drvinfo->bus_info)); in tsnep_ethtool_get_drvinfo()
96 /* first queue pair is within TSNEP_MAC_SIZE, only queues additional to in tsnep_ethtool_get_regs_len()
97 * the first queue pair extend the register length by TSNEP_QUEUE_SIZE in tsnep_ethtool_get_regs_len()
100 max(adapter->num_tx_queues, adapter->num_rx_queues) - 1; in tsnep_ethtool_get_regs_len()
112 regs->version = 1; in tsnep_ethtool_get_regs()
114 memcpy_fromio(p, adapter->addr, regs->len); in tsnep_ethtool_get_regs()
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/linux/drivers/net/
H A Dxen-netfront.c4 * Copyright (c) 2002-2005, K A Fraser
81 #define NETFRONT_SKB_CB(skb) ((struct netfront_cb *)((skb)->cb))
88 /* Minimum number of Rx slots (includes slot for GSO metadata). */
91 /* Queue name is interface name with "-qNNN" appended */
94 /* IRQ name is queue name with "-tx" or "-rx" appended */
108 unsigned int id; /* Queue ID, 0-based */
109 char name[QUEUE_NAME_SIZE]; /* DEVNAME-qN */
122 char tx_irq_name[IRQ_NAME_SIZE]; /* DEVNAME-qN-tx */
123 char rx_irq_name[IRQ_NAME_SIZE]; /* DEVNAME-qN-rx */
130 * {tx,rx}_skbs store outstanding skbuffs. Free tx_skb entries
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/linux/drivers/net/xen-netback/
H A Drx.c3 * Copyright (c) 2002-2005, K A Fraser
38 * Note that any call sequence outside the RX thread calling this function
39 * needs to wake up the RX thread via a call of xenvif_kick_thread()
42 static void xenvif_update_needed_slots(struct xenvif_queue *queue, in xenvif_update_needed_slots() argument
48 needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE); in xenvif_update_needed_slots()
51 if (skb->sw_hash) in xenvif_update_needed_slots()
55 WRITE_ONCE(queue->rx_slots_needed, needed); in xenvif_update_needed_slots()
58 static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue) in xenvif_rx_ring_slots_available() argument
63 needed = READ_ONCE(queue->rx_slots_needed); in xenvif_rx_ring_slots_available()
68 prod = queue->rx.sring->req_prod; in xenvif_rx_ring_slots_available()
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/linux/drivers/net/ethernet/intel/idpf/
H A Didpf_txrx.h1 /* SPDX-License-Identifier: GPL-2.0-only */
21 /* Mailbox Queue */
29 /* Number of descriptors in a queue should be a multiple of 32. RX queue
71 * given RX completion queue has descriptors. This includes _ALL_ buffer
73 * you have a total of 1024 buffers so your RX queue _must_ have at least that
74 * many descriptors. This macro divides a given number of RX descriptors by
75 * number of buffer queues to calculate how many descriptors each buffer queue
76 * can have without overrunning the RX queue.
88 #define IDPF_RX_BUFQ_WORKING_SET(rxq) ((rxq)->desc_count - 1)
92 if (unlikely(++(ntc) == (rxq)->desc_count)) { \
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/linux/Documentation/devicetree/bindings/net/
H A Dintel,ixp4xx-ethernet.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - $ref: ethernet-controller.yaml#
14 - Linus Walleij <linus.walleij@linaro.org>
18 Processing Engine) and the IXP4xx Queue Manager to process
24 const: intel,ixp4xx-ethernet
30 queue-rx:
31 $ref: /schemas/types.yaml#/definitions/phandle-array
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H A Dintel,ixp4xx-hss.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/net/intel,ixp4xx-hss.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Linus Walleij <linus.walleij@linaro.org>
15 Processing Engine) and the IXP4xx Queue Manager to process
20 const: intel,ixp4xx-hss
26 intel,npe-handle:
27 $ref: /schemas/types.yaml#/definitions/phandle-array
30 - description: phandle to the NPE this HSS instance is using
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H A Dkeystone-netcp.txt6 switch sub-module to send and receive packets. NetCP also includes a packet
13 includes a 3-port Ethernet switch sub-module capable of 10Gb/s and 1Gb/s rates
16 Keystone NetCP driver has a plug-in module architecture where each of the NetCP
17 sub-modules exist as a loadable kernel module which plug in to the netcp core.
18 These sub-modules are represented as "netcp-devices" in the dts bindings. It is
19 mandatory to have the ethernet switch sub-module for the ethernet interface to
20 be operational. Any other sub-module like the PA is optional.
24 -----------------------------
26 -----------------------------
28 |-> NetCP Devices -> |
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/linux/drivers/net/ethernet/netronome/nfp/
H A Dnfp_net.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2 /* Copyright (C) 2015-2018 Netronome Systems, Inc. */
21 #include <linux/io-64-nonatomic-hi-lo.h>
32 if (__nn->dp.netdev) \
33 netdev_printk(lvl, __nn->dp.netdev, fmt, ## args); \
35 dev_printk(lvl, __nn->dp.dev, "ctrl: " fmt, ## args); \
48 if (__dp->netdev) \
49 netdev_warn(__dp->netdev, fmt, ## args); \
51 dev_warn(__dp->dev, fmt, ## args); \
78 /* Queue/Ring definitions */
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/linux/drivers/firmware/samsung/
H A Dexynos-acpm.c1 // SPDX-License-Identifier: GPL-2.0-only
15 #include <linux/firmware/samsung/exynos-acpm-protocol.h>
19 #include <linux/mailbox/exynos-message.h>
31 #include "exynos-acpm.h"
32 #include "exynos-acpm-pmic.h"
42 * struct acpm_shmem - shared memory configuration information.
56 * struct acpm_chan_shmem - descriptor of a shared memory channel.
60 * @rx_rear: rear pointer of APM RX queue (TX for AP).
61 * @rx_front: front pointer of APM RX queue (TX for AP).
62 * @rx_base: base address of APM RX queue (TX for AP).
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/linux/drivers/net/ethernet/broadcom/bnx2x/
H A Dbnx2x_mfw_req.h3 * Copyright (c) 2012-2013 Broadcom Corporation
94 u32 promiscuous_mode; /* Promiscuous Mode. non-zero true */
95 u32 txq_size; /* TX Descriptors Queue Size */
96 u32 rxq_size; /* RX Descriptors Queue Size */
97 /* TX Descriptor Queue Avg Depth. % Avg Queue Depth since last poll */
99 /* RX Descriptors Queue Avg Depth. % Avg Queue Depth since last poll */
114 /* QoS Priority (per 802.1p). 0-7255 */
116 u32 txq_size; /* FCoE TX Descriptors Queue Size. */
117 u32 rxq_size; /* FCoE RX Descriptors Queue Size. */
118 /* FCoE TX Descriptor Queue Avg Depth. */
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/linux/Documentation/networking/device_drivers/ethernet/amazon/
H A Dena.rst1 .. SPDX-License-Identifier: GPL-2.0
15 through an Admin Queue.
17 The driver supports a range of ENA devices, is link-speed independent
21 Some ENA devices support SR-IOV. This driver is used for both the
22 SR-IOV Physical Function (PF) and Virtual Function (VF) devices.
25 processing by providing multiple Tx/Rx queue pairs (the maximum number
26 is advertised by the device via the Admin Queue), a dedicated MSI-X
27 interrupt vector per Tx/Rx queue pair, adaptive interrupt moderation,
31 checksum offload. Receive-side scaling (RSS) is supported for multi-core
39 Some of the ENA devices support a working mode called Low-latency
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/linux/drivers/net/ethernet/huawei/hinic/
H A Dhinic_rx.c1 // SPDX-License-Identifier: GPL-2.0-only
18 #include <linux/dma-mapping.h>
46 (HINIC_GET_RX_PKT_TYPE(be32_to_cpu((cqe)->offload_type)) == \
50 * hinic_rxq_clean_stats - Clean the statistics of specific queue
51 * @rxq: Logical Rx Queue
55 struct hinic_rxq_stats *rxq_stats = &rxq->rxq_stats; in hinic_rxq_clean_stats()
57 u64_stats_update_begin(&rxq_stats->syncp); in hinic_rxq_clean_stats()
58 rxq_stats->pkts = 0; in hinic_rxq_clean_stats()
59 rxq_stats->bytes = 0; in hinic_rxq_clean_stats()
60 rxq_stats->errors = 0; in hinic_rxq_clean_stats()
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/linux/drivers/net/wireless/ralink/rt2x00/
H A Drt2x00queue.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
10 Abstract: rt2x00 queue datastructures and routines
33 * enum data_queue_qid: Queue identification
35 * @QID_AC_VO: AC VO queue
36 * @QID_AC_VI: AC VI queue
37 * @QID_AC_BE: AC BE queue
38 * @QID_AC_BK: AC BK queue
39 * @QID_HCCA: HCCA queue
40 * @QID_MGMT: MGMT queue (prio queue)
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/linux/drivers/net/ethernet/sfc/siena/
H A Dnet_driver.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2005-2013 Solarflare Communications Inc.
61 /* Checksum generation is a per-queue option in hardware, so each
62 * queue visible to the networking core is backed by two hardware TX
68 #define EFX_TXQ_TYPE_HIGHPRI 4 /* High-priority (for TC) */
70 /* HIGHPRI is Siena-only, and INNER_CSUM is EF10, so no need for both */
83 /* Size of an RX scatter buffer. Small enough to pack 2 into a 4K page,
86 #define EFX_RX_USR_BUF_SIZE (2048 - 256)
89 * of every buffer. Otherwise, we just need to ensure 4-byte
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/linux/Documentation/networking/
H A Daf_xdp.rst1 .. SPDX-License-Identifier: GPL-2.0
20 XDP programs to redirect frames to a memory buffer in a user-space
24 syscall. Associated with each XSK are two rings: the RX ring and the
25 TX ring. A socket can receive packets on the RX ring and it can send
28 to have at least one of these rings for each socket. An RX or TX
30 UMEM. RX and TX can share the same UMEM so that a packet does not have
31 to be copied between RX and TX. Moreover, if a packet needs to be kept
44 to fill in with RX packet data. References to these frames will then
45 appear in the RX ring once each packet has been received. The
48 space, for either TX or RX. Thus, the frame addrs appearing in the
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/linux/drivers/net/wireless/intel/iwlwifi/mld/
H A Drx.h1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
3 * Copyright (C) 2024-2025 Intel Corporation
11 * enum iwl_mld_internal_rxq_notif_type - RX queue sync notif types
22 * struct iwl_mld_internal_rxq_notif - @iwl_rxq_sync_cmd internal data.
29 * @payload: data to send to RX queues based on the type (may be empty)
39 * struct iwl_mld_rx_queues_sync - RX queues sync data
41 * @waitq: wait queue for RX queues sync completion
43 * @state: bitmask representing the sync state of RX queues
44 * all RX queues bits are set before sending the command, and the
45 * corresponding queue bit cleared upon handling the notification
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/linux/drivers/net/ethernet/sfc/
H A Dnet_driver.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2005-2013 Solarflare Communications Inc.
63 /* Checksum generation is a per-queue option in hardware, so each
64 * queue visible to the networking core is backed by two hardware TX
83 /* Size of an RX scatter buffer. Small enough to pack 2 into a 4K page,
86 #define EFX_RX_USR_BUF_SIZE (2048 - 256)
89 * of every buffer. Otherwise, we just need to ensure 4-byte
98 /* Non-standard XDP_PACKET_HEADROOM and tailroom to satisfy XDP_REDIRECT and
111 * struct efx_buffer - A general-purpose DMA buffer
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/linux/Documentation/devicetree/bindings/crypto/
H A Dintel,ixp4xx-crypto.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/crypto/intel,ixp4xx-crypto.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Linus Walleij <linus.walleij@linaro.org>
21 const: intel,ixp4xx-crypto
23 intel,npe-handle:
24 $ref: /schemas/types.yaml#/definitions/phandle-array
26 - items:
27 - description: phandle to the NPE this crypto engine
[all …]
/linux/Documentation/networking/device_drivers/ethernet/aquantia/
H A Datlantic.rst1 .. SPDX-License-Identifier: GPL-2.0
8 For the aQuantia Multi-Gigabit PCI Express Family of Ethernet Adapters
12 - Identifying Your Adapter
13 - Configuration
14 - Supported ethtool options
15 - Command Line Parameters
16 - Config file parameters
17 - Support
18 - License
23 The driver in this release is compatible with AQC-100, AQC-107, AQC-108
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/linux/drivers/infiniband/hw/hfi1/
H A Dnetdev_rx.c1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
8 * This file contains HFI1 support for netdev RX functionality
20 static int hfi1_netdev_setup_ctxt(struct hfi1_netdev_rx *rx, in hfi1_netdev_setup_ctxt() argument
24 struct hfi1_devdata *dd = rx->dd; in hfi1_netdev_setup_ctxt()
27 uctxt->rhf_rcv_function_map = netdev_rhf_rcv_functions; in hfi1_netdev_setup_ctxt()
28 uctxt->do_interrupt = &handle_receive_interrupt_napi_sp; in hfi1_netdev_setup_ctxt()
30 /* Now allocate the RcvHdr queue and eager buffers. */ in hfi1_netdev_setup_ctxt()
44 if (!HFI1_CAP_KGET_MASK(uctxt->flags, MULTI_PKT_EGR)) in hfi1_netdev_setup_ctxt()
46 if (HFI1_CAP_KGET_MASK(uctxt->flags, NODROP_EGR_FULL)) in hfi1_netdev_setup_ctxt()
48 if (HFI1_CAP_KGET_MASK(uctxt->flags, NODROP_RHQ_FULL)) in hfi1_netdev_setup_ctxt()
[all …]
/linux/drivers/net/ethernet/google/gve/
H A Dgve.h1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT)
4 * Copyright (C) 2015-2024 Google LLC
10 #include <linux/dma-mapping.h>
35 /* 1 for management, 1 for rx, 1 for tx */
38 /* Numbers of gve tx/rx stats in stats report. */
45 /* Numbers of NIC tx/rx stats in stats report. */
51 #define GVE_DATA_SLOT_ADDR_PAGE_MASK (~(PAGE_SIZE - 1))
73 (GVE_ADMINQ_BUFFER_SIZE / sizeof(((struct gve_adminq_queried_flow_rule *)0)->location))
91 /* 2K buffers for DQO-QPL */
97 * allocs and uses a non-qpl page on the receive path of DQO QPL to free
[all …]
/linux/drivers/net/ethernet/stmicro/stmmac/
H A Dstmmac_main.c1 // SPDX-License-Identifier: GPL-2.0-only
3 This is the driver for the ST MAC 10/100/1000 on-chip Ethernet controllers.
6 Copyright(C) 2007-2011 STMicroelectronics Ltd
29 #include <linux/dma-mapping.h>
57 * with fine resolution and binary rollover. This avoid non-monotonic behavior
64 #define TSO_MAX_BUFF_SIZE (SZ_16K - 1)
72 static int debug = -1;
74 MODULE_PARM_DESC(debug, "Message Level (-1: default, 0: no output, 16: all)");
76 static int phyaddr = -1;
80 #define STMMAC_TX_THRESH(x) ((x)->dma_conf.dma_tx_size / 4)
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/linux/drivers/net/wireless/ath/ath5k/
H A Ddma.c2 * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
3 * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
27 * handle queue setup for 5210 chipset (rest are handled on qcu.c).
44 * ath5k_hw_start_rx_dma() - Start DMA receive
55 * ath5k_hw_stop_rx_dma() - Stop DMA receive
70 i--) in ath5k_hw_stop_rx_dma()
75 "failed to stop RX DMA !\n"); in ath5k_hw_stop_rx_dma()
77 return i ? 0 : -EBUSY; in ath5k_hw_stop_rx_dma()
81 * ath5k_hw_get_rxdp() - Get RX Descriptor's address
91 * ath5k_hw_set_rxdp() - Set RX Descriptor's address
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/linux/arch/arm/boot/dts/ti/keystone/
H A Dkeystone-k2e-netcp.dtsi1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2015-2017 Texas Instruments Incorporated - https://www.ti.com/
9 compatible = "ti,keystone-navigator-qmss";
10 dma-coherent;
11 #address-cells = <1>;
12 #size-cells = <1>;
15 queue-range = <0 0x2000>;
20 #address-cells = <1>;
21 #size-cells = <1>;
24 managed-queues = <0 0x2000>;
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