diff options
Diffstat (limited to 'drivers/net/gianfar.h')
| -rw-r--r-- | drivers/net/gianfar.h | 116 |
1 files changed, 75 insertions, 41 deletions
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 05732faa2f9..a60f93f1ae0 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -7,8 +7,9 @@ * * Author: Andy Fleming * Maintainer: Kumar Gala + * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> * - * Copyright (c) 2002-2004 Freescale Semiconductor, Inc. + * Copyright 2002-2009 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -699,6 +700,76 @@ struct gfar { #define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400 +/** + * struct gfar_priv_tx_q - per tx queue structure + * @txlock: per queue tx spin lock + * @tx_skbuff:skb pointers + * @skb_curtx: to be used skb pointer + * @skb_dirtytx:the last used skb pointer + * @qindex: index of this queue + * @dev: back pointer to the dev structure + * @grp: back pointer to the group to which this queue belongs + * @tx_bd_base: First tx buffer descriptor + * @cur_tx: Next free ring entry + * @dirty_tx: First buffer in line to be transmitted + * @tx_ring_size: Tx ring size + * @num_txbdfree: number of free TxBds + * @txcoalescing: enable/disable tx coalescing + * @txic: transmit interrupt coalescing value + * @txcount: coalescing value if based on tx frame count + * @txtime: coalescing value if based on time + */ +struct gfar_priv_tx_q { + spinlock_t txlock __attribute__ ((aligned (SMP_CACHE_BYTES))); + struct sk_buff ** tx_skbuff; + /* Buffer descriptor pointers */ + dma_addr_t tx_bd_dma_base; + struct txbd8 *tx_bd_base; + struct txbd8 *cur_tx; + struct txbd8 *dirty_tx; + struct net_device *dev; + u16 skb_curtx; + u16 skb_dirtytx; + u16 qindex; + unsigned int tx_ring_size; + unsigned int num_txbdfree; + /* Configuration info for the coalescing features */ + unsigned char txcoalescing; + unsigned long txic; + unsigned short txcount; + unsigned short txtime; +}; + +/** + * struct gfar_priv_rx_q - per rx queue structure + * @rxlock: per queue rx spin lock + * @napi: the napi poll function + * @rx_skbuff: skb pointers + * @skb_currx: currently use skb pointer + * @rx_bd_base: First rx buffer descriptor + * @cur_rx: Next free rx ring entry + * @qindex: index of this queue + * @dev: back pointer to the dev structure + * @rx_ring_size: Rx ring size + * @rxcoalescing: enable/disable rx-coalescing + * @rxic: receive interrupt coalescing vlaue + */ + +struct gfar_priv_rx_q { + spinlock_t rxlock __attribute__ ((aligned (SMP_CACHE_BYTES))); + struct napi_struct napi; + struct sk_buff ** rx_skbuff; + struct rxbd8 *rx_bd_base; + struct rxbd8 *cur_rx; + struct net_device *dev; + u16 skb_currx; + u16 qindex; + unsigned int rx_ring_size; + /* RX Coalescing values */ + unsigned char rxcoalescing; + unsigned long rxic; +}; + /* Struct stolen almost completely (and shamelessly) from the FCC enet source * (Ok, that's not so true anymore, but there is a family resemblence) * The GFAR buffer descriptors track the ring buffers. The rx_bd_base @@ -709,52 +780,15 @@ struct gfar { * the buffer descriptor determines the actual condition. */ struct gfar_private { - /* Fields controlled by TX lock */ - spinlock_t txlock; - - /* Pointer to the array of skbuffs */ - struct sk_buff ** tx_skbuff; - - /* next free skb in the array */ - u16 skb_curtx; - - /* First skb in line to be transmitted */ - u16 skb_dirtytx; - - /* Configuration info for the coalescing features */ - unsigned char txcoalescing; - unsigned long txic; - - /* Buffer descriptor pointers */ - dma_addr_t tx_bd_dma_base; - struct txbd8 *tx_bd_base; /* First tx buffer descriptor */ - struct txbd8 *cur_tx; /* Next free ring entry */ - struct txbd8 *dirty_tx; /* First buffer in line - to be transmitted */ - unsigned int tx_ring_size; - unsigned int num_txbdfree; /* number of TxBDs free */ - - /* RX Locked fields */ - spinlock_t rxlock; struct device_node *node; struct net_device *ndev; struct of_device *ofdev; - struct napi_struct napi; - - /* skb array and index */ - struct sk_buff ** rx_skbuff; - u16 skb_currx; - - /* RX Coalescing values */ - unsigned char rxcoalescing; - unsigned long rxic; - struct rxbd8 *rx_bd_base; /* First Rx buffers */ - struct rxbd8 *cur_rx; /* Next free rx ring entry */ + struct gfar_priv_tx_q *tx_queue; + struct gfar_priv_rx_q *rx_queue; - /* RX parameters */ - unsigned int rx_ring_size; + /* RX per device parameters */ unsigned int rx_buffer_size; unsigned int rx_stash_size; unsigned int rx_stash_index; |