146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*
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* Copyright (c) 2013 Johannes Berg <johannes@sipsolutions.net>
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*
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* This file is free software: you may copy, redistribute and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 2 of the License, or (at your
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* option) any later version.
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright (c) 2012 Qualcomm Atheros, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _ALX_H_
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#define _ALX_H_
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#include <linux/types.h>
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#include <linux/etherdevice.h>
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#include <linux/dma-mapping.h>
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#include <linux/spinlock.h>
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#include "hw.h"
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#define ALX_WATCHDOG_TIME (5 * HZ)
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struct alx_buffer {
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struct sk_buff *skb;
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DEFINE_DMA_UNMAP_ADDR(dma);
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DEFINE_DMA_UNMAP_LEN(size);
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};
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struct alx_rx_queue {
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struct net_device *netdev;
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struct device *dev;
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struct alx_napi *np;
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struct alx_rrd *rrd;
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dma_addr_t rrd_dma;
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struct alx_rfd *rfd;
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dma_addr_t rfd_dma;
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struct alx_buffer *bufs;
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u16 count;
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u16 write_idx, read_idx;
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u16 rrd_read_idx;
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u16 queue_idx;
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};
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#define ALX_RX_ALLOC_THRESH 32
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struct alx_tx_queue {
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struct net_device *netdev;
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struct device *dev;
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struct alx_txd *tpd;
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dma_addr_t tpd_dma;
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struct alx_buffer *bufs;
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u16 count;
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u16 write_idx, read_idx;
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u16 queue_idx;
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u16 p_reg, c_reg;
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};
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#define ALX_DEFAULT_TX_WORK 128
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enum alx_device_quirks {
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ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG = BIT(0),
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};
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struct alx_napi {
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struct napi_struct napi;
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struct alx_priv *alx;
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struct alx_rx_queue *rxq;
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struct alx_tx_queue *txq;
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int vec_idx;
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u32 vec_mask;
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char irq_lbl[IFNAMSIZ + 8];
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};
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#define ALX_MAX_NAPIS 8
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struct alx_priv {
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struct net_device *dev;
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struct alx_hw hw;
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/* msi-x vectors */
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int num_vec;
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/* all descriptor memory */
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struct {
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dma_addr_t dma;
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void *virt;
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unsigned int size;
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} descmem;
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struct alx_napi *qnapi[ALX_MAX_NAPIS];
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int num_txq;
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int num_rxq;
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int num_napi;
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/* protect int_mask updates */
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spinlock_t irq_lock;
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u32 int_mask;
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unsigned int tx_ringsz;
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unsigned int rx_ringsz;
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unsigned int rxbuf_size;
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struct work_struct link_check_wk;
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struct work_struct reset_wk;
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u16 msg_enable;
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/* protects hw.stats */
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spinlock_t stats_lock;
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};
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extern const struct ethtool_ops alx_ethtool_ops;
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extern const char alx_drv_name[];
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#endif
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