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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | /* * Copyright (c) 2013 Johannes Berg <johannes@sipsolutions.net> * * This file is free software: you may copy, redistribute and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation, either version 2 of the License, or (at your * option) any later version. * * This file is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * This file incorporates work covered by the following copyright and * permission notice: * * Copyright (c) 2012 Qualcomm Atheros, Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _ALX_H_ #define _ALX_H_ #include <linux/types.h> #include <linux/etherdevice.h> #include <linux/dma-mapping.h> #include <linux/spinlock.h> #include "hw.h" #define ALX_WATCHDOG_TIME (5 * HZ) struct alx_buffer { struct sk_buff *skb; DEFINE_DMA_UNMAP_ADDR(dma); DEFINE_DMA_UNMAP_LEN(size); }; struct alx_rx_queue { struct net_device *netdev; struct device *dev; struct alx_napi *np; struct alx_rrd *rrd; dma_addr_t rrd_dma; struct alx_rfd *rfd; dma_addr_t rfd_dma; struct alx_buffer *bufs; u16 count; u16 write_idx, read_idx; u16 rrd_read_idx; u16 queue_idx; }; #define ALX_RX_ALLOC_THRESH 32 struct alx_tx_queue { struct net_device *netdev; struct device *dev; struct alx_txd *tpd; dma_addr_t tpd_dma; struct alx_buffer *bufs; u16 count; u16 write_idx, read_idx; u16 queue_idx; u16 p_reg, c_reg; }; #define ALX_DEFAULT_TX_WORK 128 enum alx_device_quirks { ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG = BIT(0), }; struct alx_napi { struct napi_struct napi; struct alx_priv *alx; struct alx_rx_queue *rxq; struct alx_tx_queue *txq; int vec_idx; u32 vec_mask; char irq_lbl[IFNAMSIZ + 8]; }; #define ALX_MAX_NAPIS 8 struct alx_priv { struct net_device *dev; struct alx_hw hw; /* msi-x vectors */ int num_vec; /* all descriptor memory */ struct { dma_addr_t dma; void *virt; unsigned int size; } descmem; struct alx_napi *qnapi[ALX_MAX_NAPIS]; int num_txq; int num_rxq; int num_napi; /* protect int_mask updates */ spinlock_t irq_lock; u32 int_mask; unsigned int tx_ringsz; unsigned int rx_ringsz; unsigned int rxbuf_size; struct work_struct link_check_wk; struct work_struct reset_wk; u16 msg_enable; /* protects hw.stats */ spinlock_t stats_lock; }; extern const struct ethtool_ops alx_ethtool_ops; #endif |