| /******************************************************************************* |
| |
| 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; |
| |
| #ifdef CONFIG_IGB_LRO |
| #include <linux/inet_lro.h> |
| #define MAX_LRO_AGGR 32 |
| #define MAX_LRO_DESCRIPTORS 8 |
| #endif |
| |
| /* Interrupt defines */ |
| #define IGB_MIN_DYN_ITR 3000 |
| #define IGB_MAX_DYN_ITR 96000 |
| |
| /* ((1000000000ns / (6000ints/s * 1024ns)) << 2 = 648 */ |
| #define IGB_START_ITR 648 |
| |
| #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 |
| #define IGB_MAX_TX_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; |
| u16 length; |
| u16 next_to_watch; |
| }; |
| /* RX */ |
| struct { |
| struct page *page; |
| u64 page_dma; |
| unsigned int page_offset; |
| }; |
| }; |
| }; |
| |
| 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; |
| |
| u16 queue_index; |
| u16 reg_idx; |
| unsigned int total_bytes; |
| unsigned int total_packets; |
| |
| union { |
| /* TX */ |
| struct { |
| struct igb_queue_stats tx_stats; |
| bool detect_tx_hung; |
| }; |
| /* RX */ |
| struct { |
| struct igb_queue_stats rx_stats; |
| struct napi_struct napi; |
| int set_itr; |
| struct igb_ring *buddy; |
| #ifdef CONFIG_IGB_LRO |
| struct net_lro_mgr lro_mgr; |
| bool lro_used; |
| #endif |
| }; |
| }; |
| |
| 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; |
| |
| 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; |
| u32 eims_other; |
| |
| /* to not mess up cache alignment, always add to the bottom */ |
| unsigned long state; |
| unsigned int flags; |
| u32 eeprom_wol; |
| |
| /* for ioport free */ |
| int bars; |
| int need_ioport; |
| |
| struct igb_ring *multi_tx_table[IGB_MAX_TX_QUEUES]; |
| #ifdef CONFIG_IGB_LRO |
| unsigned int lro_max_aggr; |
| unsigned int lro_aggregated; |
| unsigned int lro_flushed; |
| unsigned int lro_no_desc; |
| #endif |
| unsigned int tx_ring_count; |
| unsigned int rx_ring_count; |
| }; |
| |
| #define IGB_FLAG_HAS_MSI (1 << 0) |
| #define IGB_FLAG_MSI_ENABLE (1 << 1) |
| #define IGB_FLAG_HAS_DCA (1 << 2) |
| #define IGB_FLAG_DCA_ENABLED (1 << 3) |
| #define IGB_FLAG_IN_NETPOLL (1 << 5) |
| #define IGB_FLAG_QUAD_PORT_A (1 << 6) |
| #define IGB_FLAG_NEED_CTX_IDX (1 << 7) |
| |
| 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_free_tx_resources(struct igb_ring *); |
| extern void igb_free_rx_resources(struct igb_ring *); |
| extern void igb_update_stats(struct igb_adapter *); |
| extern void igb_set_ethtool_ops(struct net_device *); |
| |
| static inline s32 igb_reset_phy(struct e1000_hw *hw) |
| { |
| if (hw->phy.ops.reset_phy) |
| return hw->phy.ops.reset_phy(hw); |
| |
| return 0; |
| } |
| |
| static inline s32 igb_read_phy_reg(struct e1000_hw *hw, u32 offset, u16 *data) |
| { |
| if (hw->phy.ops.read_phy_reg) |
| return hw->phy.ops.read_phy_reg(hw, offset, data); |
| |
| return 0; |
| } |
| |
| static inline s32 igb_write_phy_reg(struct e1000_hw *hw, u32 offset, u16 data) |
| { |
| if (hw->phy.ops.write_phy_reg) |
| return hw->phy.ops.write_phy_reg(hw, offset, data); |
| |
| return 0; |
| } |
| |
| static inline s32 igb_get_phy_info(struct e1000_hw *hw) |
| { |
| if (hw->phy.ops.get_phy_info) |
| return hw->phy.ops.get_phy_info(hw); |
| |
| return 0; |
| } |
| |
| #endif /* _IGB_H_ */ |