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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 …]
/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 */
[all …]
/linux/drivers/vhost/
H A Dnet.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * virtio-net server in host kernel.
41 " 1 -Enable; 0 - Disable");
61 /* Lower device DMA failed */
63 /* Lower device DMA done */
65 /* Lower device DMA in progress */
117 /* last used idx for outstanding DMA zerocopy buffers */
119 /* For TX, first used idx for DMA done zerocopy buffers
139 struct vhost_poll poll[VHOST_NET_VQ_MAX]; member
156 if (rxq->tail != rxq->head) in vhost_net_buf_get_ptr()
[all …]
/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/net/ethernet/cavium/liquidio/
H A Docteon_droq.c7 * Copyright (c) 2003-2016 Cavium, Inc.
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
41 * @param octeon_dev - the octeon device pointer.
42 * @param opcode - the opcode for which the dispatch argument
44 * @param subcode - the subcode for which the dispatch argument
60 spin_lock_bh(&octeon_dev->dispatch.lock); in octeon_get_dispatch_arg()
62 if (octeon_dev->dispatch.count == 0) { in octeon_get_dispatch_arg()
63 spin_unlock_bh(&octeon_dev->dispatch.lock); in octeon_get_dispatch_arg()
67 if (octeon_dev->dispatch.dlist[idx].opcode == combined_opcode) { in octeon_get_dispatch_arg()
68 fn_arg = octeon_dev->dispatch.dlist[idx].arg; in octeon_get_dispatch_arg()
[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/arch/powerpc/platforms/cell/spufs/
H A Dfile.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * SPU file system -- file contents
17 #include <linux/poll.h>
52 return -ENOMEM; in spufs_attr_open()
54 attr->get = get; in spufs_attr_open()
55 attr->set = set; in spufs_attr_open()
56 attr->data = inode->i_private; in spufs_attr_open()
57 attr->fmt = fmt; in spufs_attr_open()
58 mutex_init(&attr->mutex); in spufs_attr_open()
59 file->private_data = attr; in spufs_attr_open()
[all …]
/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/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/isdn/hardware/mISDN/
H A Dhfcpci.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * hfcpci.c low level driver for CCD's hfc-pci based cards
8 * type approval valid for HFC-S PCI A based card
10 * Copyright 1999 by Werner Cornelius (werner@isdn-development.de)
16 * NOTE: only one poll value must be given for all cards
19 * poll:
20 * NOTE: only one poll value must be given for all cards
47 static uint poll, tics; variable
52 MODULE_DESCRIPTION("mISDN driver for CCD's hfc-pci based cards");
55 module_param(poll, uint, S_IRUGO | S_IWUSR);
[all …]
/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/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 };
[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 …]
H A Dbcm_vk_dev.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright 2018-2020 Broadcom.
7 #include <linux/dma-mapping.h>
49 {VK_IMAGE_TYPE_BOOT1, {"vk_a0-boot1.bin", "vk-boot1.bin"}},
50 {VK_IMAGE_TYPE_BOOT2, {"vk_a0-boot2.bin", "vk-boot2.bin"}}
53 {VK_IMAGE_TYPE_BOOT1, {"vk_b0-boot1.bin", "vk-boot1.bin"}},
54 {VK_IMAGE_TYPE_BOOT2, {"vk_b0-boot2.bin", "vk-boot2.bin"}}
58 {VK_IMAGE_TYPE_BOOT1, {"vp-boot1.bin", ""}},
59 {VK_IMAGE_TYPE_BOOT2, {"vp-boot2.bin", ""}}
85 /* Number of bits set in DMA mask*/
[all …]
/linux/drivers/usb/core/
H A Ddevices.c1 // SPDX-License-Identifier: GPL-2.0+
16 * reason -- maybe it's just too deep of a directory structure.
24 * this in any plug-and-play environment.)
26 * 1999-12-16: Thomas Sailer <sailer@ife.ee.ethz.ch>
30 * Added a poll method to /sys/kernel/debug/usb/devices, to wake
32 * 2000-01-04: Thomas Sailer <sailer@ife.ee.ethz.ch>
34 * 2000-07-05: Ashley Montanaro <ashley@compsoc.man.ac.uk>
54 /* T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=dddd MxCh=dd */
55 "\nT: Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%-4s MxCh=%2d\n";
77 "D: Ver=%2x.%02x Cls=%02x(%-5s) Sub=%02x Prot=%02x MxPS=%2d #Cfgs=%3d\n";
[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 …]
/linux/drivers/iio/
H A Dindustrialio-buffer.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * - Better memory allocation techniques?
10 * - Alternative access techniques?
18 #include <linux/dma-buf.h>
19 #include <linux/dma-fence.h>
20 #include <linux/dma-resv.h>
26 #include <linux/poll.h>
30 #include <linux/iio/iio-opaque.h>
72 return !list_empty(&buf->buffer_list); in iio_buffer_is_active()
77 return buf->access->data_available(buf); in iio_buffer_data_available()
[all …]
/linux/drivers/net/ethernet/marvell/octeontx2/af/
H A Drvu_npa.c1 // SPDX-License-Identifier: GPL-2.0
18 struct admin_queue *aq = block->aq; in npa_aq_enqueue_wait()
23 result = (struct npa_aq_res_s *)aq->res->base; in npa_aq_enqueue_wait()
26 reg = rvu_read64(rvu, block->addr, NPA_AF_AQ_STATUS); in npa_aq_enqueue_wait()
29 memcpy((void *)(aq->inst->base + (head * aq->inst->entry_sz)), in npa_aq_enqueue_wait()
30 (void *)inst, aq->inst->entry_sz); in npa_aq_enqueue_wait()
36 rvu_write64(rvu, block->addr, NPA_AF_AQ_DOOR, 1); in npa_aq_enqueue_wait()
37 while (result->compcode == NPA_AQ_COMP_NOTDONE) { in npa_aq_enqueue_wait()
40 timeout--; in npa_aq_enqueue_wait()
42 return -EBUSY; in npa_aq_enqueue_wait()
[all …]
/linux/drivers/scsi/qla2xxx/
H A Dqla_mr.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (c) 2003-2014 QLogic Corporation
49 uint32_t cnt; in qlafx00_mailbox_command() local
52 struct qla_hw_data *ha = vha->hw; in qlafx00_mailbox_command()
53 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); in qlafx00_mailbox_command()
55 if (ha->pdev->error_state == pci_channel_io_perm_failure) { in qlafx00_mailbox_command()
61 if (vha->device_flags & DFLG_DEV_FAILED) { in qlafx00_mailbox_command()
67 reg = ha->iobase; in qlafx00_mailbox_command()
68 io_lock_on = base_vha->flags.init_done; in qlafx00_mailbox_command()
71 abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); in qlafx00_mailbox_command()
[all …]
/linux/drivers/crypto/
H A Dhifn_795x.c1 // SPDX-License-Identifier: GPL-2.0-or-later
16 #include <linux/dma-mapping.h>
60 /* DMA registres */
62 #define HIFN_DMA_CRA 0x0C /* DMA Command Ring Address */
63 #define HIFN_DMA_SDRA 0x1C /* DMA Source Data Ring Address */
64 #define HIFN_DMA_RRA 0x2C /* DMA Result Ring Address */
65 #define HIFN_DMA_DDRA 0x3C /* DMA Destination Data Ring Address */
66 #define HIFN_DMA_STCTL 0x40 /* DMA Status and Control */
67 #define HIFN_DMA_INTREN 0x44 /* DMA Interrupt Enable */
68 #define HIFN_DMA_CFG1 0x48 /* DMA Configuration #1 */
[all …]
/linux/drivers/net/wireless/intel/iwlegacy/
H A D4965.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
8 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
79 * Acquire il->lock before calling this function !
83 * il4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
84 * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
87 * NOTE: Acquire il->lock before calling this function !
133 void il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt);
181 * The first queue used for block-ack aggregation is #7 (4965 only).
182 * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7.
[all …]

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