/* * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved. * Copyright(c) 2006 Chris Snook * Copyright(c) 2006 Jay Cliburn * * Derived from Intel e1000 driver * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. * * 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 Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * * This program 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, write to the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef _ATL1_H_ #define _ATL1_H_ #include #include #include "atl1_hw.h" /* function prototypes needed by multiple files */ s32 atl1_up(struct atl1_adapter *adapter); void atl1_down(struct atl1_adapter *adapter); int atl1_reset(struct atl1_adapter *adapter); s32 atl1_setup_ring_resources(struct atl1_adapter *adapter); void atl1_free_ring_resources(struct atl1_adapter *adapter); extern char atl1_driver_name[]; extern char atl1_driver_version[]; extern const struct ethtool_ops atl1_ethtool_ops; struct atl1_adapter; #define ATL1_MAX_INTR 3 #define ATL1_MAX_TX_BUF_LEN 0x3000 /* 12288 bytes */ #define ATL1_DEFAULT_TPD 256 #define ATL1_MAX_TPD 1024 #define ATL1_MIN_TPD 64 #define ATL1_DEFAULT_RFD 512 #define ATL1_MIN_RFD 128 #define ATL1_MAX_RFD 2048 #define ATL1_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i])) #define ATL1_RFD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_free_desc) #define ATL1_TPD_DESC(R, i) ATL1_GET_DESC(R, i, struct tx_packet_desc) #define ATL1_RRD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_return_desc) /* * This detached comment is preserved for documentation purposes only. * It was originally attached to some code that got deleted, but seems * important enough to keep around... * * * Some workarounds require millisecond delays and are run during interrupt * context. Most notably, when establishing link, the phy may need tweaking * but cannot process phy register reads/writes faster than millisecond * intervals...and we establish link due to a "link status change" interrupt. * */ /* * atl1_ring_header represents a single, contiguous block of DMA space * mapped for the three descriptor rings (tpd, rfd, rrd) and the two * message blocks (cmb, smb) described below */ struct atl1_ring_header { void *desc; /* virtual address */ dma_addr_t dma; /* physical address*/ unsigned int size; /* length in bytes */ }; /* * atl1_buffer is wrapper around a pointer to a socket buffer * so a DMA handle can be stored along with the skb */ struct atl1_buffer { struct sk_buff *skb; /* socket buffer */ u16 length; /* rx buffer length */ u16 alloced; /* 1 if skb allocated */ dma_addr_t dma; }; /* transmit packet descriptor (tpd) ring */ struct atl1_tpd_ring { void *desc; /* descriptor ring virtual address */ dma_addr_t dma; /* descriptor ring physical address */ u16 size; /* descriptor ring length in bytes */ u16 count; /* number of descriptors in the ring */ u16 hw_idx; /* hardware index */ atomic_t next_to_clean; atomic_t next_to_use; struct atl1_buffer *buffer_info; }; /* receive free descriptor (rfd) ring */ struct atl1_rfd_ring { void *desc; /* descriptor ring virtual address */ dma_addr_t dma; /* descriptor ring physical address */ u16 size; /* descriptor ring length in bytes */ u16 count; /* number of descriptors in the ring */ atomic_t next_to_use; u16 next_to_clean; struct atl1_buffer *buffer_info; }; /* receive return descriptor (rrd) ring */ struct atl1_rrd_ring { void *desc; /* descriptor ring virtual address */ dma_addr_t dma; /* descriptor ring physical address */ unsigned int size; /* descriptor ring length in bytes */ u16 count; /* number of descriptors in the ring */ u16 next_to_use; atomic_t next_to_clean; }; /* coalescing message block (cmb) */ struct atl1_cmb { struct coals_msg_block *cmb; dma_addr_t dma; }; /* statistics message block (smb) */ struct atl1_smb { struct stats_msg_block *smb; dma_addr_t dma; }; /* Statistics counters */ struct atl1_sft_stats { u64 rx_packets; u64 tx_packets; u64 rx_bytes; u64 tx_bytes; u64 multicast; u64 collisions; u64 rx_errors; u64 rx_length_errors; u64 rx_crc_errors; u64 rx_frame_errors; u64 rx_fifo_errors; u64 rx_missed_errors; u64 tx_errors; u64 tx_fifo_errors; u64 tx_aborted_errors; u64 tx_window_errors; u64 tx_carrier_errors; u64 tx_pause; /* num pause packets transmitted. */ u64 excecol; /* num tx packets w/ excessive collisions. */ u64 deffer; /* num tx packets deferred */ u64 scc; /* num packets subsequently transmitted * successfully w/ single prior collision. */ u64 mcc; /* num packets subsequently transmitted * successfully w/ multiple prior collisions. */ u64 latecol; /* num tx packets w/ late collisions. */ u64 tx_underun; /* num tx packets aborted due to transmit * FIFO underrun, or TRD FIFO underrun */ u64 tx_trunc; /* num tx packets truncated due to size * exceeding MTU, regardless whether truncated * by the chip or not. (The name doesn't really * reflect the meaning in this case.) */ u64 rx_pause; /* num Pause packets received. */ u64 rx_rrd_ov; u64 rx_trunc; }; /* hardware structure */ struct atl1_hw { u8 __iomem *hw_addr; struct atl1_adapter *back; enum atl1_dma_order dma_ord; enum atl1_dma_rcb rcb_value; enum atl1_dma_req_block dmar_block; enum atl1_dma_req_block dmaw_block; u8 preamble_len; u8 max_retry; /* Retransmission maximum, after which the * packet will be discarded */ u8 jam_ipg; /* IPG to start JAM for collision based flow * control in half-duplex mode. In units of * 8-bit time */ u8 ipgt; /* Desired back to back inter-packet gap. * The default is 96-bit time */ u8 min_ifg; /* Minimum number of IFG to enforce in between * receive frames. Frame gap below such IFP * is dropped */ u8 ipgr1; /* 64bit Carrier-Sense window */ u8 ipgr2; /* 96-bit IPG window */ u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned * burst. Each TPD is 16 bytes long */ u8 rfd_burst; /* Number of RFD to prefetch in cache-aligned * burst. Each RFD is 12 bytes long */ u8 rfd_fetch_gap; u8 rrd_burst; /* Threshold number of RRDs that can be retired * in a burst. Each RRD is 16 bytes long */ u8 tpd_fetch_th; u8 tpd_fetch_gap; u16 tx_jumbo_task_th; u16 txf_burst; /* Number of data bytes to read in a cache- * aligned burst. Each SRAM entry is 8 bytes */ u16 rx_jumbo_th; /* Jumbo packet size for non-VLAN packet. VLAN * packets should add 4 bytes */ u16 rx_jumbo_lkah; u16 rrd_ret_timer; /* RRD retirement timer. Decrement by 1 after * every 512ns passes. */ u16 lcol; /* Collision Window */ u16 cmb_tpd; u16 cmb_rrd; u16 cmb_rx_timer; u16 cmb_tx_timer; u32 smb_timer; u16 media_type; u16 autoneg_advertised; u16 mii_autoneg_adv_reg; u16 mii_1000t_ctrl_reg; u32 max_frame_size; u32 min_frame_size; u16 dev_rev; u8 revision_id; /* spi flash */ u8 flash_vendor; u8 mac_addr[ETH_ALEN]; u8 perm_mac_addr[ETH_ALEN]; bool phy_configured; }; struct atl1_adapter { struct net_device *netdev; struct pci_dev *pdev; struct net_device_stats net_stats; struct atl1_sft_stats soft_stats; struct vlan_group *vlgrp; u32 rx_buffer_len; u32 wol; u16 link_speed; u16 link_duplex; spinlock_t lock; struct work_struct tx_timeout_task; struct work_struct link_chg_task; struct work_struct pcie_dma_to_rst_task; struct timer_list watchdog_timer; struct timer_list phy_config_timer; bool phy_timer_pending; /* all descriptor rings' memory */ struct atl1_ring_header ring_header; /* TX */ struct atl1_tpd_ring tpd_ring; spinlock_t mb_lock; /* RX */ struct atl1_rfd_ring rfd_ring; struct atl1_rrd_ring rrd_ring; u64 hw_csum_err; u64 hw_csum_good; u16 imt; /* interrupt moderator timer (2us resolution */ u16 ict; /* interrupt clear timer (2us resolution */ struct mii_if_info mii; /* MII interface info */ /* structs defined in atl1_hw.h */ u32 bd_number; /* board number */ bool pci_using_64; struct atl1_hw hw; struct atl1_smb smb; struct atl1_cmb cmb; }; #endif /* _ATL1_H_ */