diff options
Diffstat (limited to 'drivers/net/ethernet/atheros/alx/alx.h')
| -rw-r--r-- | drivers/net/ethernet/atheros/alx/alx.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/drivers/net/ethernet/atheros/alx/alx.h b/drivers/net/ethernet/atheros/alx/alx.h new file mode 100644 index 0000000000..693006c5a4 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/alx.h @@ -0,0 +1,146 @@ +/* + * 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; + + struct mutex mtx; +}; + +extern const struct ethtool_ops alx_ethtool_ops; + +#endif |