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/linux/Documentation/devicetree/bindings/dma/
H A Dintel,ldma.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/intel,ldma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Lightning Mountain centralized DMA controllers.
10 - chuanhua.lei@intel.com
11 - mallikarjunax.reddy@intel.com
14 - $ref: dma-controller.yaml#
19 - intel,lgm-cdma
20 - intel,lgm-dma2tx
[all …]
/linux/drivers/net/ethernet/qlogic/qlcnic/
H A Dqlcnic_minidump.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (c) 2009-2013 QLogic Corporation
274 return hdr->saved_state[index]; in qlcnic_82xx_get_saved_state()
282 hdr->saved_state[index] = value; in qlcnic_82xx_set_saved_state()
289 hdr = fw_dump->tmpl_hdr; in qlcnic_82xx_cache_tmpl_hdr_values()
290 fw_dump->tmpl_hdr_size = hdr->size; in qlcnic_82xx_cache_tmpl_hdr_values()
291 fw_dump->version = hdr->version; in qlcnic_82xx_cache_tmpl_hdr_values()
292 fw_dump->num_entries = hdr->num_entries; in qlcnic_82xx_cache_tmpl_hdr_values()
293 fw_dump->offset = hdr->offset; in qlcnic_82xx_cache_tmpl_hdr_values()
295 hdr->drv_cap_mask = hdr->cap_mask; in qlcnic_82xx_cache_tmpl_hdr_values()
[all …]
/linux/drivers/net/ethernet/netronome/nfp/nfdk/
H A Drings.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
13 struct device *dev = dp->dev; in nfp_nfdk_tx_ring_reset()
16 while (!tx_ring->is_xdp && tx_ring->rd_p != tx_ring->wr_p) { in nfp_nfdk_tx_ring_reset()
23 rd_idx = D_IDX(tx_ring, tx_ring->rd_p); in nfp_nfdk_tx_ring_reset()
24 txbuf = &tx_ring->ktxbufs[rd_idx]; in nfp_nfdk_tx_ring_reset()
26 skb = txbuf->skb; in nfp_nfdk_tx_ring_reset()
28 n_descs = D_BLOCK_CPL(tx_ring->rd_p); in nfp_nfdk_tx_ring_reset()
32 nr_frags = skb_shinfo(skb)->nr_frags; in nfp_nfdk_tx_ring_reset()
37 dma_unmap_single(dev, txbuf->dma_addr, size, DMA_TO_DEVICE); in nfp_nfdk_tx_ring_reset()
41 frag = skb_shinfo(skb)->frags; in nfp_nfdk_tx_ring_reset()
[all …]
/linux/drivers/net/ethernet/netronome/nfp/nfd3/
H A Drings.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2015-2019 Netronome Systems, Inc. */
16 while (tx_ring->rd_p != tx_ring->wr_p) { in nfp_nfd3_xsk_tx_bufs_free()
17 idx = D_IDX(tx_ring, tx_ring->rd_p); in nfp_nfd3_xsk_tx_bufs_free()
18 txbuf = &tx_ring->txbufs[idx]; in nfp_nfd3_xsk_tx_bufs_free()
20 txbuf->real_len = 0; in nfp_nfd3_xsk_tx_bufs_free()
22 tx_ring->qcp_rd_p++; in nfp_nfd3_xsk_tx_bufs_free()
23 tx_ring->rd_p++; in nfp_nfd3_xsk_tx_bufs_free()
25 if (tx_ring->r_vec->xsk_pool) { in nfp_nfd3_xsk_tx_bufs_free()
26 if (txbuf->is_xsk_tx) in nfp_nfd3_xsk_tx_bufs_free()
[all …]
H A Ddp.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2015-2019 Netronome Systems, Inc. */
20 * driver en-queues packets for transmit by advancing the write
42 * nfp_nfd3_tx_ring_stop() - stop tx ring
63 * nfp_nfd3_tx_tso() - Set up Tx descriptor for LSO
64 * @r_vec: per-ring structure
70 * Set up Tx descriptor for LSO, do nothing for non-LSO skbs.
83 if (!skb->encapsulation) { in nfp_nfd3_tx_tso()
86 l4_hdrlen = (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) ? in nfp_nfd3_tx_tso()
91 l4_hdrlen = (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) ? in nfp_nfd3_tx_tso()
[all …]
/linux/drivers/mtd/nand/raw/
H A Dsunxi_nand.c1 // SPDX-License-Identifier: GPL-2.0+
6 * https://github.com/yuq/sunxi-nfc-mtd
9 * https://github.com/hno/Allwinner-Info
16 #include <linux/dma-mapping.h>
70 #define NFC_PAGE_SHIFT(x) (((x) < 10 ? 0 : (x) - 10) << 8)
107 #define NFC_ADR_NUM(x) (((x) - 1) << 16)
161 * struct sunxi_nand_chip_sel - stores information related to NAND Chip Select
164 * @rb: the Ready/Busy pin ID. -1 means no R/B pin connected to the NFC
172 * struct sunxi_nand_hw_ecc - stores information related to HW ECC support
181 * struct sunxi_nand_chip - stores NAND chip device related information
[all …]
/linux/drivers/net/ethernet/netronome/nfp/
H A Dnfp_net_dp.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
11 return dma_map_single_attrs(dp->dev, frag + NFP_NET_RX_BUF_HEADROOM, in nfp_net_dma_map_rx()
12 dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA, in nfp_net_dma_map_rx()
13 dp->rx_dma_dir, DMA_ATTR_SKIP_CPU_SYNC); in nfp_net_dma_map_rx()
19 dma_sync_single_for_device(dp->dev, dma_addr, in nfp_net_dma_sync_dev_rx()
20 dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA, in nfp_net_dma_sync_dev_rx()
21 dp->rx_dma_dir); in nfp_net_dma_sync_dev_rx()
27 dma_unmap_single_attrs(dp->dev, dma_addr, in nfp_net_dma_unmap_rx()
28 dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA, in nfp_net_dma_unmap_rx()
29 dp->rx_dma_dir, DMA_ATTR_SKIP_CPU_SYNC); in nfp_net_dma_unmap_rx()
[all …]
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); \
89 #define NFP_NET_XDP_MAX_COMPLETE 2048 /* XDP bufs to reclaim in NAPI poll */
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/linux/drivers/net/ethernet/brocade/bna/
H A Dbna_hw_defs.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Linux network driver for QLogic BR-series Converged Network Adapter.
6 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
7 * Copyright (c) 2014-2015 QLogic Corporation
28 #define BFI_INVALID_RID -1
42 #define BFI_TX_INTERPKT_COUNT 12 /* Pkt Cnt = 12 */
45 #define BFI_RX_INTERPKT_COUNT 6 /* Pkt Cnt = 6 */
80 (_bna)->regs.fn_int_status = (_pcidev)->pci_bar_kva + \
81 reg_offset[(_pcidev)->pci_func].fn_int_status;\
82 (_bna)->regs.fn_int_mask = (_pcidev)->pci_bar_kva + \
[all …]
/linux/drivers/dma/xilinx/
H A Dxilinx_dpdma.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2015 - 2020 Xilinx, Inc.
15 #include <linux/dma/xilinx_dpdma.h>
28 #include <dt-bindings/dma/xlnx-zynqmp-dpdma.h>
31 #include "../virt-dma.h"
142 * struct xilinx_dpdma_hw_desc - DPDMA hardware descriptor
180 * struct xilinx_dpdma_sw_desc - DPDMA software descriptor
183 * @dma_addr: DMA address of the software descriptor
192 * struct xilinx_dpdma_tx_desc - DPDMA transaction descriptor
193 * @vdesc: virtual DMA descriptor
[all …]
/linux/drivers/scsi/qla4xxx/
H A Dql4_nx.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (c) 2003-2013 QLogic Corporation
14 #include <linux/io-64-nonatomic-lo-hi.h>
40 if ((off < ha->first_page_group_end) && in qla4_8xxx_pci_base_offsetfset()
41 (off >= ha->first_page_group_start)) in qla4_8xxx_pci_base_offsetfset()
42 return (void __iomem *)(ha->nx_pcibase + off); in qla4_8xxx_pci_base_offsetfset()
363 ha->crb_win = CRB_HI(*off); in qla4_82xx_pci_set_crbwindow_2M()
364 writel(ha->crb_win, in qla4_82xx_pci_set_crbwindow_2M()
365 (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase)); in qla4_82xx_pci_set_crbwindow_2M()
369 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase)); in qla4_82xx_pci_set_crbwindow_2M()
[all …]
/linux/drivers/net/wireless/realtek/rtw89/
H A Dpci.c1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
25 struct rtw89_pci *rtwpci = (struct rtw89_pci *)rtwdev->priv; in rtw89_pci_get_phy_offset_by_link_speed()
26 struct pci_dev *pdev = rtwpci->pdev; in rtw89_pci_get_phy_offset_by_link_speed()
41 return -EFAULT; in rtw89_pci_get_phy_offset_by_link_speed()
65 const struct rtw89_pci_info *info = rtwdev->pci_info; in rtw89_pci_dma_recalc()
66 u32 cnt, cur_rp, wp, rp, len; in rtw89_pci_dma_recalc() local
68 rp = bd_ring->rp; in rtw89_pci_dma_recalc()
69 wp = bd_ring->wp; in rtw89_pci_dma_recalc()
70 len = bd_ring->len; in rtw89_pci_dma_recalc()
74 cnt = cur_rp >= rp ? cur_rp - rp : len - (rp - cur_rp); in rtw89_pci_dma_recalc()
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H A Dpci_be.c1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
24 struct rtw89_pci *rtwpci = (struct rtw89_pci *)rtwdev->priv; in rtw89_pci_aspm_set_be()
25 struct pci_dev *pdev = rtwpci->pdev; in rtw89_pci_aspm_set_be()
80 const struct rtw89_pci_info *info = rtwdev->pci_info; in rtw89_pci_set_io_rcy_be()
84 if (info->io_rcy_en == MAC_AX_PCIE_ENABLE) { in rtw89_pci_set_io_rcy_be()
85 val32 = info->io_rcy_tmr == MAC_AX_IO_RCY_ANA_TMR_DEF ? in rtw89_pci_set_io_rcy_be()
86 PL0_TMR_ANA_172US : info->io_rcy_tmr; in rtw89_pci_set_io_rcy_be()
98 val32 = info->io_rcy_tmr == MAC_AX_IO_RCY_ANA_TMR_DEF ? in rtw89_pci_set_io_rcy_be()
99 PL0_TMR_MAC_1MS : info->io_rcy_tmr; in rtw89_pci_set_io_rcy_be()
104 val32 = info->io_rcy_tmr == MAC_AX_IO_RCY_ANA_TMR_DEF ? in rtw89_pci_set_io_rcy_be()
[all …]
/linux/Documentation/driver-api/usb/
H A Dusb.rst1 .. _usb-hostside-api:
4 The Linux-USB Host Side API
18 That master/slave asymmetry was designed-in for a number of reasons, one
22 distributed auto-configuration since the pre-designated master node
37 USB Host-Side API Model
40 Host-side drivers for USB devices talk to the "usbcore" APIs. There are
41 two. One is intended for *general-purpose* drivers (exposed through
49 - USB supports four kinds of data transfers (control, bulk, interrupt,
54 - The device description model includes one or more "configurations"
60 - From USB 3.0 on configurations have one or more "functions", which
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/linux/drivers/net/ethernet/intel/ice/
H A Dice_txrx.c1 // SPDX-License-Identifier: GPL-2.0
26 * ice_prgm_fdir_fltr - Program a Flow Director filter
40 dma_addr_t dma; in ice_prgm_fdir_fltr() local
46 return -ENOENT; in ice_prgm_fdir_fltr()
47 tx_ring = vsi->tx_rings[0]; in ice_prgm_fdir_fltr()
48 if (!tx_ring || !tx_ring->desc) in ice_prgm_fdir_fltr()
49 return -ENOENT; in ice_prgm_fdir_fltr()
50 dev = tx_ring->dev; in ice_prgm_fdir_fltr()
53 for (i = ICE_FDIR_CLEAN_DELAY; ICE_DESC_UNUSED(tx_ring) < 2; i--) { in ice_prgm_fdir_fltr()
55 return -EAGAIN; in ice_prgm_fdir_fltr()
[all …]
/linux/drivers/net/ethernet/ti/
H A Ddavinci_emac.c1 // SPDX-License-Identifier: GPL-2.0+
5 * DaVinci EMAC is based upon CPPI 3.0 TI DMA engine
9 * ---------------------------------------------------------------------------
11 * 0-5 A number of folks worked on this driver in bits and pieces but the major
13 * 6.0 Anant Gole - rewrote the driver as per Linux conventions
14 * 6.1 Chaithrika U S - added support for Gigabit and RMII features,
38 #include <linux/dma-mapping.h>
106 #define EMAC_DEF_BUFFER_OFFSET (0) /* Buffer offset to DMA (future) */
117 #define EMAC_DEF_RX_MAX_SERVICE (64) /* should = netdev->weight */
316 struct cpdma_ctlr *dma; member
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/linux/drivers/net/wireless/realtek/rtw88/
H A Dpci.c1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /* Copyright(c) 2018-2019 Realtek Corporation
47 return skb->priority; in rtw_pci_get_tx_qsel()
53 struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; in rtw_pci_read8()
55 return readb(rtwpci->mmap + addr); in rtw_pci_read8()
60 struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; in rtw_pci_read16()
62 return readw(rtwpci->mmap + addr); in rtw_pci_read16()
67 struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; in rtw_pci_read32()
69 return readl(rtwpci->mmap + addr); in rtw_pci_read32()
74 struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; in rtw_pci_write8()
[all …]
/linux/drivers/net/ethernet/broadcom/
H A Dsb1250-mac.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * This driver is designed for the Broadcom SiByte SOC built-in
48 /* A few user-configurable values which may be modified when a driver
116 sbmac_duplex_none = -1,
142 #define SBDMA_NEXTBUF(d,f) ((((d)->f+1) == (d)->sbdma_dscrtable_end) ? \
143 (d)->sbdma_dscrtable : (d)->f+1)
155 * DMA Descriptor structure
164 * DMA Controller structure
186 void __iomem *sbdma_config0; /* DMA config register 0 */
187 void __iomem *sbdma_config1; /* DMA config register 1 */
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/linux/drivers/net/ethernet/myricom/myri10ge/
H A Dmyri10ge.c2 * myri10ge.c: Myricom Myri-10G Ethernet driver.
4 * Copyright (C) 2005 - 2011 Myricom, Inc.
34 * http://www.myri.com/scs/download-Myri10GE.html
49 #include <linux/dma-mapping.h>
78 #define MYRI10GE_VERSION_STR "1.5.3-1.534"
132 int cnt; member
135 int mask; /* number of rx slots -1 */
146 int mask; /* number of transmit slots -1 */
160 int cnt; member
274 {[0 ... (MYRI10GE_MAX_BOARDS - 1)] = NULL };
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/linux/drivers/scsi/
H A DNCR5380.c1 // SPDX-License-Identifier: GPL-2.0
4 * to implement 5380 SCSI drivers under Linux with a non-trantor
13 * +1 (303) 666-5836
24 * 1+ (719) 578-3400
25 * 1+ (800) 334-5454
42 * transfer - some PC's will use the I/O bus, 68K's must use
46 * each 5380 in the system - commands that haven't been issued yet,
51 * allowing multiple commands to propagate all the way to a SCSI-II device
57 * When used in a PIO or pseudo-dma mode, the NCR5380 is a braindead
101 * NCR5380_read(register) - read from the specified register
[all …]
/linux/drivers/misc/bcm-vk/
H A Dbcm_vk_msg.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright 2018-2020 Broadcom.
12 #include <linux/poll.h>
46 u32 q_num = msg->trans_id & BCM_VK_MSG_Q_MASK; in get_q_num()
62 msg->trans_id = (msg->trans_id & ~BCM_VK_MSG_Q_MASK) | trans_q; in set_q_num()
67 return ((msg->trans_id >> BCM_VK_MSG_Q_SHIFT) & BCM_VK_MSG_ID_MASK); in get_msg_id()
72 msg->trans_id = (val << BCM_VK_MSG_Q_SHIFT) | get_q_num(msg); in set_msg_id()
77 return ((idx + inc) & qinfo->q_mask); in msgq_inc()
84 return qinfo->q_start + (VK_MSGQ_BLK_SIZE * idx); in msgq_blk_addr()
92 wr_idx = readl_relaxed(&msgq->wr_idx); in msgq_occupied()
[all …]
/linux/drivers/net/wwan/t7xx/
H A Dt7xx_hif_dpmaif_rx.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (c) 2021-2022, Intel Corporation.
23 #include <linux/dma-direction.h>
24 #include <linux/dma-mapping.h>
75 value = FIELD_GET(PD_PIT_H_BID, le32_to_cpu(pit_info->pd.footer)); in t7xx_normal_pit_bid()
77 value += FIELD_GET(PD_PIT_BUFFER_ID, le32_to_cpu(pit_info->header)); in t7xx_normal_pit_bid()
84 struct dpmaif_rx_queue *rxq = &dpmaif_ctrl->rxq[q_num]; in t7xx_dpmaif_update_bat_wr_idx()
85 struct dpmaif_bat_request *bat_req = rxq->bat_req; in t7xx_dpmaif_update_bat_wr_idx()
88 if (!rxq->que_started) { in t7xx_dpmaif_update_bat_wr_idx()
89 dev_err(dpmaif_ctrl->dev, "RX queue %d has not been started\n", rxq->index); in t7xx_dpmaif_update_bat_wr_idx()
[all …]
/linux/drivers/media/pci/tw686x/
H A Dtw686x-video.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2015 VanguardiaSur - www.vanguardiasur.com.ar
16 #include <media/v4l2-common.h>
17 #include <media/v4l2-event.h>
18 #include <media/videobuf2-dma-contig.h>
19 #include <media/videobuf2-dma-sg.h>
20 #include <media/videobuf2-vmalloc.h>
22 #include "tw686x-regs.h"
30 #define TW686X_MAX_SG_DESC_COUNT 256 /* PAL 720x576 needs 203 4-KB pages */
52 struct tw686x_dma_desc *desc = &vc->dma_descs[pb]; in tw686x_buf_done()
[all …]
/linux/drivers/media/pci/saa7164/
H A Dsaa7164-vbi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
15 struct saa7164_dev *dev = port->dev; in saa7164_vbi_configure()
18 port->vbi_params.width = port->enc_port->width; in saa7164_vbi_configure()
19 port->vbi_params.height = port->enc_port->height; in saa7164_vbi_configure()
20 port->vbi_params.is_50hz = in saa7164_vbi_configure()
21 (port->enc_port->encodernorm.id & V4L2_STD_625_50) != 0; in saa7164_vbi_configure()
31 struct saa7164_dev *dev = port->dev; in saa7164_vbi_buffers_dealloc()
36 mutex_lock(&port->dmaqueue_lock); in saa7164_vbi_buffers_dealloc()
38 dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr); in saa7164_vbi_buffers_dealloc()
[all …]
/linux/drivers/net/ethernet/marvell/
H A Dskge.h1 /* SPDX-License-Identifier: GPL-2.0 */
133 CS_CLK_RUN_HOT = 1<<13,/* CLK_RUN hot m. (YUKON-Lite only) */
134 CS_CLK_RUN_RST = 1<<12,/* CLK_RUN reset (YUKON-Lite only) */
135 CS_CLK_RUN_ENA = 1<<11,/* CLK_RUN enable (YUKON-Lite only) */
179 IS_LNK_SYNC_M1 = 1<<20, /* Link Sync Cnt wrap MAC 1 */
181 IS_LNK_SYNC_M2 = 1<<18, /* Link Sync Cnt wrap MAC 2 */
262 CHIP_ID_YUKON_LITE = 0xb1, /* Chip ID for YUKON-Lite (Rev. A1-A3) */
263 CHIP_ID_YUKON_LP = 0xb2, /* Chip ID for YUKON-LP */
264 CHIP_ID_YUKON_XL = 0xb3, /* Chip ID for YUKON-2 XL */
265 CHIP_ID_YUKON_EC = 0xb6, /* Chip ID for YUKON-2 EC */
[all …]

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