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Diffstat (limited to 'drivers/net/igb/igb.h')
| -rw-r--r-- | drivers/net/igb/igb.h | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h new file mode 100644 index 000000000000..6b2e7d351d65 --- /dev/null +++ b/drivers/net/igb/igb.h @@ -0,0 +1,300 @@ +/******************************************************************************* + + Intel(R) Gigabit Ethernet Linux driver + Copyright(c) 2007 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope 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., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* Linux PRO/1000 Ethernet Driver main header file */ + +#ifndef _IGB_H_ +#define _IGB_H_ + +#include "e1000_mac.h" +#include "e1000_82575.h" + +struct igb_adapter; + +/* Interrupt defines */ +#define IGB_MAX_TX_CLEAN 72 + +#define IGB_MIN_DYN_ITR 3000 +#define IGB_MAX_DYN_ITR 96000 +#define IGB_START_ITR 6000 + +#define IGB_DYN_ITR_PACKET_THRESHOLD 2 +#define IGB_DYN_ITR_LENGTH_LOW 200 +#define IGB_DYN_ITR_LENGTH_HIGH 1000 + +/* TX/RX descriptor defines */ +#define IGB_DEFAULT_TXD 256 +#define IGB_MIN_TXD 80 +#define IGB_MAX_TXD 4096 + +#define IGB_DEFAULT_RXD 256 +#define IGB_MIN_RXD 80 +#define IGB_MAX_RXD 4096 + +#define IGB_DEFAULT_ITR 3 /* dynamic */ +#define IGB_MAX_ITR_USECS 10000 +#define IGB_MIN_ITR_USECS 10 + +/* Transmit and receive queues */ +#define IGB_MAX_RX_QUEUES 4 + +/* RX descriptor control thresholds. + * PTHRESH - MAC will consider prefetch if it has fewer than this number of + * descriptors available in its onboard memory. + * Setting this to 0 disables RX descriptor prefetch. + * HTHRESH - MAC will only prefetch if there are at least this many descriptors + * available in host memory. + * If PTHRESH is 0, this should also be 0. + * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back + * descriptors until either it has this many to write back, or the + * ITR timer expires. + */ +#define IGB_RX_PTHRESH 16 +#define IGB_RX_HTHRESH 8 +#define IGB_RX_WTHRESH 1 + +/* this is the size past which hardware will drop packets when setting LPE=0 */ +#define MAXIMUM_ETHERNET_VLAN_SIZE 1522 + +/* Supported Rx Buffer Sizes */ +#define IGB_RXBUFFER_128 128 /* Used for packet split */ +#define IGB_RXBUFFER_256 256 /* Used for packet split */ +#define IGB_RXBUFFER_512 512 +#define IGB_RXBUFFER_1024 1024 +#define IGB_RXBUFFER_2048 2048 +#define IGB_RXBUFFER_4096 4096 +#define IGB_RXBUFFER_8192 8192 +#define IGB_RXBUFFER_16384 16384 + +/* Packet Buffer allocations */ + + +/* How many Tx Descriptors do we need to call netif_wake_queue ? */ +#define IGB_TX_QUEUE_WAKE 16 +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define IGB_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define AUTO_ALL_MODES 0 +#define IGB_EEPROM_APME 0x0400 + +#ifndef IGB_MASTER_SLAVE +/* Switch to override PHY master/slave setting */ +#define IGB_MASTER_SLAVE e1000_ms_hw_default +#endif + +#define IGB_MNG_VLAN_NONE -1 + +/* wrapper around a pointer to a socket buffer, + * so a DMA handle can be stored along with the buffer */ +struct igb_buffer { + struct sk_buff *skb; + dma_addr_t dma; + union { + /* TX */ + struct { + unsigned long time_stamp; + u32 length; + }; + /* RX */ + struct { + struct page *page; + u64 page_dma; + }; + }; +}; + +struct igb_queue_stats { + u64 packets; + u64 bytes; +}; + +struct igb_ring { + struct igb_adapter *adapter; /* backlink */ + void *desc; /* descriptor ring memory */ + dma_addr_t dma; /* phys address of the ring */ + unsigned int size; /* length of desc. ring in bytes */ + unsigned int count; /* number of desc. in the ring */ + u16 next_to_use; + u16 next_to_clean; + u16 head; + u16 tail; + struct igb_buffer *buffer_info; /* array of buffer info structs */ + + u32 eims_value; + u32 itr_val; + u16 itr_register; + u16 cpu; + + unsigned int total_bytes; + unsigned int total_packets; + + union { + /* TX */ + struct { + spinlock_t tx_clean_lock; + spinlock_t tx_lock; + bool detect_tx_hung; + }; + /* RX */ + struct { + /* arrays of page information for packet split */ + struct sk_buff *pending_skb; + int pending_skb_page; + int no_itr_adjust; + struct igb_queue_stats rx_stats; + struct napi_struct napi; + }; + }; + + char name[IFNAMSIZ + 5]; +}; + +#define IGB_DESC_UNUSED(R) \ + ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ + (R)->next_to_clean - (R)->next_to_use - 1) + +#define E1000_RX_DESC_ADV(R, i) \ + (&(((union e1000_adv_rx_desc *)((R).desc))[i])) +#define E1000_TX_DESC_ADV(R, i) \ + (&(((union e1000_adv_tx_desc *)((R).desc))[i])) +#define E1000_TX_CTXTDESC_ADV(R, i) \ + (&(((struct e1000_adv_tx_context_desc *)((R).desc))[i])) +#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) +#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) +#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) + +/* board specific private data structure */ + +struct igb_adapter { + struct timer_list watchdog_timer; + struct timer_list phy_info_timer; + struct vlan_group *vlgrp; + u16 mng_vlan_id; + u32 bd_number; + u32 rx_buffer_len; + u32 wol; + u32 en_mng_pt; + u16 link_speed; + u16 link_duplex; + unsigned int total_tx_bytes; + unsigned int total_tx_packets; + unsigned int total_rx_bytes; + unsigned int total_rx_packets; + /* Interrupt Throttle Rate */ + u32 itr; + u32 itr_setting; + u16 tx_itr; + u16 rx_itr; + int set_itr; + + struct work_struct reset_task; + struct work_struct watchdog_task; + bool fc_autoneg; + u8 tx_timeout_factor; + struct timer_list blink_timer; + unsigned long led_status; + + /* TX */ + struct igb_ring *tx_ring; /* One per active queue */ + unsigned int restart_queue; + unsigned long tx_queue_len; + u32 txd_cmd; + u32 gotc; + u64 gotc_old; + u64 tpt_old; + u64 colc_old; + u32 tx_timeout_count; + + /* RX */ + struct igb_ring *rx_ring; /* One per active queue */ + int num_tx_queues; + int num_rx_queues; + + u64 hw_csum_err; + u64 hw_csum_good; + u64 rx_hdr_split; + u32 alloc_rx_buff_failed; + bool rx_csum; + u32 gorc; + u64 gorc_old; + u16 rx_ps_hdr_size; + u32 max_frame_size; + u32 min_frame_size; + + /* OS defined structs */ + struct net_device *netdev; + struct napi_struct napi; + struct pci_dev *pdev; + struct net_device_stats net_stats; + + /* structs defined in e1000_hw.h */ + struct e1000_hw hw; + struct e1000_hw_stats stats; + struct e1000_phy_info phy_info; + struct e1000_phy_stats phy_stats; + + u32 test_icr; + struct igb_ring test_tx_ring; + struct igb_ring test_rx_ring; + + int msg_enable; + struct msix_entry *msix_entries; + u32 eims_enable_mask; + + /* to not mess up cache alignment, always add to the bottom */ + unsigned long state; + unsigned int msi_enabled; + + u32 eeprom_wol; +}; + +enum e1000_state_t { + __IGB_TESTING, + __IGB_RESETTING, + __IGB_DOWN +}; + +enum igb_boards { + board_82575, +}; + +extern char igb_driver_name[]; +extern char igb_driver_version[]; + +extern char *igb_get_hw_dev_name(struct e1000_hw *hw); +extern int igb_up(struct igb_adapter *); +extern void igb_down(struct igb_adapter *); +extern void igb_reinit_locked(struct igb_adapter *); +extern void igb_reset(struct igb_adapter *); +extern int igb_set_spd_dplx(struct igb_adapter *, u16); +extern int igb_setup_tx_resources(struct igb_adapter *, struct igb_ring *); +extern int igb_setup_rx_resources(struct igb_adapter *, struct igb_ring *); +extern void igb_update_stats(struct igb_adapter *); +extern void igb_set_ethtool_ops(struct net_device *); + +#endif /* _IGB_H_ */ |