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- /*******************************************************************************
-
- Intel(R) 82576 Virtual Function Linux driver
- Copyright(c) 1999 - 2008 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:
- Linux NICS <linux.nics@intel.com>
- e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
- *******************************************************************************/
-
- FILE_LICENCE ( GPL2_ONLY );
-
- /* Linux PRO/1000 Ethernet Driver main header file */
-
- #ifndef _IGBVF_H_
- #define _IGBVF_H_
-
- #include "igbvf_vf.h"
-
- /* Forward declarations */
- struct igbvf_info;
- struct igbvf_adapter;
-
- /* Interrupt defines */
- #define IGBVF_START_ITR 648 /* ~6000 ints/sec */
-
- /* Tx/Rx descriptor defines */
- #define IGBVF_DEFAULT_TXD 256
- #define IGBVF_MAX_TXD 4096
- #define IGBVF_MIN_TXD 80
-
- #define IGBVF_DEFAULT_RXD 256
- #define IGBVF_MAX_RXD 4096
- #define IGBVF_MIN_RXD 80
-
- #define IGBVF_MIN_ITR_USECS 10 /* 100000 irq/sec */
- #define IGBVF_MAX_ITR_USECS 10000 /* 100 irq/sec */
-
- /* 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 IGBVF_RX_PTHRESH 16
- #define IGBVF_RX_HTHRESH 8
- #define IGBVF_RX_WTHRESH 1
-
- #define IGBVF_TX_PTHRESH 8
- #define IGBVF_TX_HTHRESH 1
- #define IGBVF_TX_WTHRESH 1
-
- /* this is the size past which hardware will drop packets when setting LPE=0 */
- #define MAXIMUM_ETHERNET_VLAN_SIZE 1522
-
- #define IGBVF_FC_PAUSE_TIME 0x0680 /* 858 usec */
-
- /* How many Tx Descriptors do we need to call netif_wake_queue ? */
- #define IGBVF_TX_QUEUE_WAKE 32
- /* How many Rx Buffers do we bundle into one write to the hardware ? */
- #define IGBVF_RX_BUFFER_WRITE 16 /* Must be power of 2 */
-
- #define AUTO_ALL_MODES 0
- #define IGBVF_EEPROM_APME 0x0400
-
- #define IGBVF_MNG_VLAN_NONE (-1)
-
- enum igbvf_boards {
- board_vf,
- };
-
- struct igbvf_queue_stats {
- u64 packets;
- u64 bytes;
- };
-
- /*
- * wrappers around a pointer to a socket buffer,
- * so a DMA handle can be stored along with the buffer
- */
- struct igbvf_buffer {
- #if 0
- dma_addr_t dma;
- dma_addr_t page_dma;
- struct sk_buff *skb;
- union {
- /* Tx */
- struct {
- unsigned long time_stamp;
- u16 length;
- u16 next_to_watch;
- };
- /* Rx */
- struct {
- struct page *page;
- unsigned int page_offset;
- };
- };
- struct page *page;
- #endif
- };
-
- struct igbvf_ring {
- #if 0
- struct igbvf_adapter *adapter; /* backlink */
- void *desc; /* pointer to ring memory */
- dma_addr_t dma; /* phys address of ring */
- unsigned int size; /* length of ring in bytes */
- unsigned int count; /* number of desc. in ring */
-
- u16 next_to_use;
- u16 next_to_clean;
-
- u16 head;
- u16 tail;
-
- /* array of buffer information structs */
- struct igbvf_buffer *buffer_info;
- struct napi_struct napi;
-
- char name[IFNAMSIZ + 5];
- u32 eims_value;
- u32 itr_val;
- u16 itr_register;
- int set_itr;
-
- struct sk_buff *rx_skb_top;
-
- struct igbvf_queue_stats stats;
- #endif
- };
-
- /* board specific private data structure */
- struct igbvf_adapter {
- #if 0
- struct timer_list watchdog_timer;
- struct timer_list blink_timer;
-
- struct work_struct reset_task;
- struct work_struct watchdog_task;
-
- const struct igbvf_info *ei;
-
- struct vlan_group *vlgrp;
- u32 bd_number;
- u32 rx_buffer_len;
- u32 polling_interval;
- u16 mng_vlan_id;
- u16 link_speed;
- u16 link_duplex;
-
- spinlock_t tx_queue_lock; /* prevent concurrent tail updates */
-
- /* track device up/down/testing state */
- unsigned long state;
-
- /* Interrupt Throttle Rate */
- u32 itr;
- u32 itr_setting;
- u16 tx_itr;
- u16 rx_itr;
-
- /*
- * Tx
- */
- struct igbvf_ring *tx_ring /* One per active queue */
- ____cacheline_aligned_in_smp;
-
- unsigned long tx_queue_len;
- unsigned int restart_queue;
- u32 txd_cmd;
-
- bool detect_tx_hung;
- u8 tx_timeout_factor;
-
- unsigned int total_tx_bytes;
- unsigned int total_tx_packets;
- unsigned int total_rx_bytes;
- unsigned int total_rx_packets;
-
- /* Tx stats */
- u32 tx_timeout_count;
- u32 tx_fifo_head;
- u32 tx_head_addr;
- u32 tx_fifo_size;
- u32 tx_dma_failed;
-
- /*
- * Rx
- */
- struct igbvf_ring *rx_ring;
-
- /* Rx stats */
- u64 hw_csum_err;
- u64 hw_csum_good;
- u64 rx_hdr_split;
- u32 alloc_rx_buff_failed;
- u32 rx_dma_failed;
-
- unsigned int rx_ps_hdr_size;
- u32 max_frame_size;
- u32 min_frame_size;
-
- /* OS defined structs */
- struct net_device *netdev;
- struct pci_dev *pdev;
- struct net_device_stats net_stats;
- spinlock_t stats_lock; /* prevent concurrent stats updates */
-
- /* structs defined in e1000_hw.h */
- struct e1000_hw hw;
-
- /* The VF counters don't clear on read so we have to get a base
- * count on driver start up and always subtract that base on
- * on the first update, thus the flag..
- */
- struct e1000_vf_stats stats;
- u64 zero_base;
-
- struct igbvf_ring test_tx_ring;
- struct igbvf_ring test_rx_ring;
- u32 test_icr;
-
- u32 msg_enable;
- struct msix_entry *msix_entries;
- int int_mode;
- u32 eims_enable_mask;
- u32 eims_other;
- u32 int_counter0;
- u32 int_counter1;
-
- u32 eeprom_wol;
- u32 wol;
- u32 pba;
-
- bool fc_autoneg;
-
- unsigned long led_status;
-
- unsigned int flags;
- unsigned long last_reset;
- u32 *config_space;
- #endif
- /* OS defined structs */
- struct net_device *netdev;
- struct pci_device *pdev;
- struct net_device_stats net_stats;
-
- /* structs defined in e1000_hw.h */
- struct e1000_hw hw;
-
- u32 min_frame_size;
- u32 max_frame_size;
-
- u32 max_hw_frame_size;
-
- #define NUM_TX_DESC 8
- #define NUM_RX_DESC 8
-
- struct io_buffer *tx_iobuf[NUM_TX_DESC];
- struct io_buffer *rx_iobuf[NUM_RX_DESC];
-
- union e1000_adv_tx_desc *tx_base;
- union e1000_adv_rx_desc *rx_base;
-
- uint32_t tx_ring_size;
- uint32_t rx_ring_size;
-
- uint32_t tx_head;
- uint32_t tx_tail;
- uint32_t tx_fill_ctr;
-
- uint32_t rx_curr;
-
- uint32_t ioaddr;
- uint32_t irqno;
-
- uint32_t tx_int_delay;
- uint32_t tx_abs_int_delay;
- uint32_t txd_cmd;
- };
-
- struct igbvf_info {
- enum e1000_mac_type mac;
- unsigned int flags;
- u32 pba;
- void (*init_ops)(struct e1000_hw *);
- s32 (*get_variants)(struct igbvf_adapter *);
- };
-
- /* hardware capability, feature, and workaround flags */
- #define IGBVF_FLAG_RX_CSUM_DISABLED (1 << 0)
-
- #define IGBVF_DESC_UNUSED(R) \
- ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
- (R)->next_to_clean - (R)->next_to_use - 1)
-
- #define IGBVF_RX_DESC_ADV(R, i) \
- (&(((union e1000_adv_rx_desc *)((R).desc))[i]))
- #define IGBVF_TX_DESC_ADV(R, i) \
- (&(((union e1000_adv_tx_desc *)((R).desc))[i]))
- #define IGBVF_TX_CTXTDESC_ADV(R, i) \
- (&(((struct e1000_adv_tx_context_desc *)((R).desc))[i]))
-
- enum igbvf_state_t {
- __IGBVF_TESTING,
- __IGBVF_RESETTING,
- __IGBVF_DOWN
- };
-
- enum latency_range {
- lowest_latency = 0,
- low_latency = 1,
- bulk_latency = 2,
- latency_invalid = 255
- };
-
- extern char igbvf_driver_name[];
- extern const char igbvf_driver_version[];
-
- extern void igbvf_check_options(struct igbvf_adapter *adapter);
- extern void igbvf_set_ethtool_ops(struct net_device *netdev);
- #ifdef ETHTOOL_OPS_COMPAT
- extern int ethtool_ioctl(struct ifreq *ifr);
- #endif
-
- extern int igbvf_up(struct igbvf_adapter *adapter);
- extern void igbvf_down(struct igbvf_adapter *adapter);
- extern void igbvf_reinit_locked(struct igbvf_adapter *adapter);
- extern void igbvf_reset(struct igbvf_adapter *adapter);
- extern int igbvf_setup_rx_resources(struct igbvf_adapter *adapter);
- extern int igbvf_setup_tx_resources(struct igbvf_adapter *adapter);
- extern void igbvf_free_rx_resources(struct igbvf_adapter *adapter);
- extern void igbvf_free_tx_resources(struct igbvf_adapter *adapter);
- extern void igbvf_update_stats(struct igbvf_adapter *adapter);
- extern void igbvf_set_interrupt_capability(struct igbvf_adapter *adapter);
- extern void igbvf_reset_interrupt_capability(struct igbvf_adapter *adapter);
-
- extern unsigned int copybreak;
-
- static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
- {
- return readl(hw->hw_addr + reg);
- }
-
- static inline void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val)
- {
- writel(val, hw->hw_addr + reg);
- }
- #define er32(reg) E1000_READ_REG(hw, E1000_##reg)
- #define ew32(reg,val) E1000_WRITE_REG(hw, E1000_##reg, (val))
- #define e1e_flush() er32(STATUS)
-
- #endif /* _IGBVF_H_ */
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