456 lines
13 KiB
C
456 lines
13 KiB
C
|
/*******************************************************************************
|
||
|
|
||
|
Intel(R) Gigabit Ethernet Linux driver
|
||
|
Copyright(c) 2007-2012 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"
|
||
|
|
||
|
#include <linux/clocksource.h>
|
||
|
#include <linux/timecompare.h>
|
||
|
#include <linux/net_tstamp.h>
|
||
|
#include <linux/bitops.h>
|
||
|
#include <linux/if_vlan.h>
|
||
|
|
||
|
struct igb_adapter;
|
||
|
|
||
|
/* Interrupt defines */
|
||
|
#define IGB_START_ITR 648 /* ~6000 ints/sec */
|
||
|
#define IGB_4K_ITR 980
|
||
|
#define IGB_20K_ITR 196
|
||
|
#define IGB_70K_ITR 56
|
||
|
|
||
|
/* TX/RX descriptor defines */
|
||
|
#define IGB_DEFAULT_TXD 256
|
||
|
#define IGB_DEFAULT_TX_WORK 128
|
||
|
#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
|
||
|
#define NON_Q_VECTORS 1
|
||
|
#define MAX_Q_VECTORS 8
|
||
|
|
||
|
/* Transmit and receive queues */
|
||
|
#define IGB_MAX_RX_QUEUES (adapter->vfs_allocated_count ? 2 : \
|
||
|
(hw->mac.type > e1000_82575 ? 8 : 4))
|
||
|
#define IGB_MAX_TX_QUEUES 16
|
||
|
|
||
|
#define IGB_MAX_VF_MC_ENTRIES 30
|
||
|
#define IGB_MAX_VF_FUNCTIONS 8
|
||
|
#define IGB_MAX_VFTA_ENTRIES 128
|
||
|
#define IGB_82576_VF_DEV_ID 0x10CA
|
||
|
#define IGB_I350_VF_DEV_ID 0x1520
|
||
|
|
||
|
struct vf_data_storage {
|
||
|
unsigned char vf_mac_addresses[ETH_ALEN];
|
||
|
u16 vf_mc_hashes[IGB_MAX_VF_MC_ENTRIES];
|
||
|
u16 num_vf_mc_hashes;
|
||
|
u16 vlans_enabled;
|
||
|
u32 flags;
|
||
|
unsigned long last_nack;
|
||
|
u16 pf_vlan; /* When set, guest VLAN config not allowed. */
|
||
|
u16 pf_qos;
|
||
|
u16 tx_rate;
|
||
|
struct pci_dev *vfdev;
|
||
|
};
|
||
|
|
||
|
#define IGB_VF_FLAG_CTS 0x00000001 /* VF is clear to send data */
|
||
|
#define IGB_VF_FLAG_UNI_PROMISC 0x00000002 /* VF has unicast promisc */
|
||
|
#define IGB_VF_FLAG_MULTI_PROMISC 0x00000004 /* VF has multicast promisc */
|
||
|
#define IGB_VF_FLAG_PF_SET_MAC 0x00000008 /* PF has set MAC address */
|
||
|
|
||
|
/* 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 8
|
||
|
#define IGB_RX_HTHRESH 8
|
||
|
#define IGB_TX_PTHRESH 8
|
||
|
#define IGB_TX_HTHRESH 1
|
||
|
#define IGB_RX_WTHRESH ((hw->mac.type == e1000_82576 && \
|
||
|
adapter->msix_entries) ? 1 : 4)
|
||
|
#define IGB_TX_WTHRESH ((hw->mac.type == e1000_82576 && \
|
||
|
adapter->msix_entries) ? 1 : 16)
|
||
|
|
||
|
/* 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_512 512
|
||
|
#define IGB_RXBUFFER_16384 16384
|
||
|
#define IGB_RX_HDR_LEN IGB_RXBUFFER_512
|
||
|
|
||
|
/* 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
|
||
|
|
||
|
#define IGB_TX_FLAGS_CSUM 0x00000001
|
||
|
#define IGB_TX_FLAGS_VLAN 0x00000002
|
||
|
#define IGB_TX_FLAGS_TSO 0x00000004
|
||
|
#define IGB_TX_FLAGS_IPV4 0x00000008
|
||
|
#define IGB_TX_FLAGS_TSTAMP 0x00000010
|
||
|
#define IGB_TX_FLAGS_VLAN_MASK 0xffff0000
|
||
|
#define IGB_TX_FLAGS_VLAN_SHIFT 16
|
||
|
|
||
|
/* wrapper around a pointer to a socket buffer,
|
||
|
* so a DMA handle can be stored along with the buffer */
|
||
|
struct igb_tx_buffer {
|
||
|
union e1000_adv_tx_desc *next_to_watch;
|
||
|
unsigned long time_stamp;
|
||
|
struct sk_buff *skb;
|
||
|
unsigned int bytecount;
|
||
|
u16 gso_segs;
|
||
|
__be16 protocol;
|
||
|
dma_addr_t dma;
|
||
|
u32 length;
|
||
|
u32 tx_flags;
|
||
|
};
|
||
|
|
||
|
struct igb_rx_buffer {
|
||
|
struct sk_buff *skb;
|
||
|
dma_addr_t dma;
|
||
|
struct page *page;
|
||
|
dma_addr_t page_dma;
|
||
|
u32 page_offset;
|
||
|
};
|
||
|
|
||
|
struct igb_tx_queue_stats {
|
||
|
u64 packets;
|
||
|
u64 bytes;
|
||
|
u64 restart_queue;
|
||
|
u64 restart_queue2;
|
||
|
};
|
||
|
|
||
|
struct igb_rx_queue_stats {
|
||
|
u64 packets;
|
||
|
u64 bytes;
|
||
|
u64 drops;
|
||
|
u64 csum_err;
|
||
|
u64 alloc_failed;
|
||
|
};
|
||
|
|
||
|
struct igb_ring_container {
|
||
|
struct igb_ring *ring; /* pointer to linked list of rings */
|
||
|
unsigned int total_bytes; /* total bytes processed this int */
|
||
|
unsigned int total_packets; /* total packets processed this int */
|
||
|
u16 work_limit; /* total work allowed per interrupt */
|
||
|
u8 count; /* total number of rings in vector */
|
||
|
u8 itr; /* current ITR setting for ring */
|
||
|
};
|
||
|
|
||
|
struct igb_q_vector {
|
||
|
struct igb_adapter *adapter; /* backlink */
|
||
|
int cpu; /* CPU for DCA */
|
||
|
u32 eims_value; /* EIMS mask value */
|
||
|
|
||
|
struct igb_ring_container rx, tx;
|
||
|
|
||
|
struct napi_struct napi;
|
||
|
int numa_node;
|
||
|
|
||
|
u16 itr_val;
|
||
|
u8 set_itr;
|
||
|
void __iomem *itr_register;
|
||
|
|
||
|
char name[IFNAMSIZ + 9];
|
||
|
};
|
||
|
|
||
|
struct igb_ring {
|
||
|
struct igb_q_vector *q_vector; /* backlink to q_vector */
|
||
|
struct net_device *netdev; /* back pointer to net_device */
|
||
|
struct device *dev; /* device pointer for dma mapping */
|
||
|
union { /* array of buffer info structs */
|
||
|
struct igb_tx_buffer *tx_buffer_info;
|
||
|
struct igb_rx_buffer *rx_buffer_info;
|
||
|
};
|
||
|
void *desc; /* descriptor ring memory */
|
||
|
unsigned long flags; /* ring specific flags */
|
||
|
void __iomem *tail; /* pointer to ring tail register */
|
||
|
|
||
|
u16 count; /* number of desc. in the ring */
|
||
|
u8 queue_index; /* logical index of the ring*/
|
||
|
u8 reg_idx; /* physical index of the ring */
|
||
|
u32 size; /* length of desc. ring in bytes */
|
||
|
|
||
|
/* everything past this point are written often */
|
||
|
u16 next_to_clean ____cacheline_aligned_in_smp;
|
||
|
u16 next_to_use;
|
||
|
|
||
|
union {
|
||
|
/* TX */
|
||
|
struct {
|
||
|
struct igb_tx_queue_stats tx_stats;
|
||
|
struct u64_stats_sync tx_syncp;
|
||
|
struct u64_stats_sync tx_syncp2;
|
||
|
};
|
||
|
/* RX */
|
||
|
struct {
|
||
|
struct igb_rx_queue_stats rx_stats;
|
||
|
struct u64_stats_sync rx_syncp;
|
||
|
};
|
||
|
};
|
||
|
/* Items past this point are only used during ring alloc / free */
|
||
|
dma_addr_t dma; /* phys address of the ring */
|
||
|
int numa_node; /* node to alloc ring memory on */
|
||
|
};
|
||
|
|
||
|
enum e1000_ring_flags_t {
|
||
|
IGB_RING_FLAG_RX_SCTP_CSUM,
|
||
|
IGB_RING_FLAG_RX_LB_VLAN_BSWAP,
|
||
|
IGB_RING_FLAG_TX_CTX_IDX,
|
||
|
IGB_RING_FLAG_TX_DETECT_HANG
|
||
|
};
|
||
|
|
||
|
#define IGB_TXD_DCMD (E1000_ADVTXD_DCMD_EOP | E1000_ADVTXD_DCMD_RS)
|
||
|
|
||
|
#define IGB_RX_DESC(R, i) \
|
||
|
(&(((union e1000_adv_rx_desc *)((R)->desc))[i]))
|
||
|
#define IGB_TX_DESC(R, i) \
|
||
|
(&(((union e1000_adv_tx_desc *)((R)->desc))[i]))
|
||
|
#define IGB_TX_CTXTDESC(R, i) \
|
||
|
(&(((struct e1000_adv_tx_context_desc *)((R)->desc))[i]))
|
||
|
|
||
|
/* igb_test_staterr - tests bits within Rx descriptor status and error fields */
|
||
|
static inline __le32 igb_test_staterr(union e1000_adv_rx_desc *rx_desc,
|
||
|
const u32 stat_err_bits)
|
||
|
{
|
||
|
return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
|
||
|
}
|
||
|
|
||
|
/* igb_desc_unused - calculate if we have unused descriptors */
|
||
|
static inline int igb_desc_unused(struct igb_ring *ring)
|
||
|
{
|
||
|
if (ring->next_to_clean > ring->next_to_use)
|
||
|
return ring->next_to_clean - ring->next_to_use - 1;
|
||
|
|
||
|
return ring->count + ring->next_to_clean - ring->next_to_use - 1;
|
||
|
}
|
||
|
|
||
|
/* board specific private data structure */
|
||
|
struct igb_adapter {
|
||
|
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
|
||
|
|
||
|
struct net_device *netdev;
|
||
|
|
||
|
unsigned long state;
|
||
|
unsigned int flags;
|
||
|
|
||
|
unsigned int num_q_vectors;
|
||
|
struct msix_entry *msix_entries;
|
||
|
|
||
|
/* Interrupt Throttle Rate */
|
||
|
u32 rx_itr_setting;
|
||
|
u32 tx_itr_setting;
|
||
|
u16 tx_itr;
|
||
|
u16 rx_itr;
|
||
|
|
||
|
/* TX */
|
||
|
u16 tx_work_limit;
|
||
|
u32 tx_timeout_count;
|
||
|
int num_tx_queues;
|
||
|
struct igb_ring *tx_ring[16];
|
||
|
|
||
|
/* RX */
|
||
|
int num_rx_queues;
|
||
|
struct igb_ring *rx_ring[16];
|
||
|
|
||
|
u32 max_frame_size;
|
||
|
u32 min_frame_size;
|
||
|
|
||
|
struct timer_list watchdog_timer;
|
||
|
struct timer_list phy_info_timer;
|
||
|
|
||
|
u16 mng_vlan_id;
|
||
|
u32 bd_number;
|
||
|
u32 wol;
|
||
|
u32 en_mng_pt;
|
||
|
u16 link_speed;
|
||
|
u16 link_duplex;
|
||
|
|
||
|
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;
|
||
|
|
||
|
/* OS defined structs */
|
||
|
struct pci_dev *pdev;
|
||
|
struct cyclecounter cycles;
|
||
|
struct timecounter clock;
|
||
|
struct timecompare compare;
|
||
|
struct hwtstamp_config hwtstamp_config;
|
||
|
|
||
|
spinlock_t stats64_lock;
|
||
|
struct rtnl_link_stats64 stats64;
|
||
|
|
||
|
/* 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 igb_q_vector *q_vector[MAX_Q_VECTORS];
|
||
|
u32 eims_enable_mask;
|
||
|
u32 eims_other;
|
||
|
|
||
|
/* to not mess up cache alignment, always add to the bottom */
|
||
|
u32 eeprom_wol;
|
||
|
|
||
|
u16 tx_ring_count;
|
||
|
u16 rx_ring_count;
|
||
|
unsigned int vfs_allocated_count;
|
||
|
struct vf_data_storage *vf_data;
|
||
|
int vf_rate_link_speed;
|
||
|
u32 rss_queues;
|
||
|
u32 wvbr;
|
||
|
int node;
|
||
|
u32 *shadow_vfta;
|
||
|
};
|
||
|
|
||
|
#define IGB_FLAG_HAS_MSI (1 << 0)
|
||
|
#define IGB_FLAG_DCA_ENABLED (1 << 1)
|
||
|
#define IGB_FLAG_QUAD_PORT_A (1 << 2)
|
||
|
#define IGB_FLAG_QUEUE_PAIRS (1 << 3)
|
||
|
#define IGB_FLAG_DMAC (1 << 4)
|
||
|
|
||
|
/* DMA Coalescing defines */
|
||
|
#define IGB_MIN_TXPBSIZE 20408
|
||
|
#define IGB_TX_BUF_4096 4096
|
||
|
#define IGB_DMCTLX_DCFLUSH_DIS 0x80000000 /* Disable DMA Coal Flush */
|
||
|
|
||
|
#define IGB_82576_TSYNC_SHIFT 19
|
||
|
#define IGB_82580_TSYNC_SHIFT 24
|
||
|
#define IGB_TS_HDR_LEN 16
|
||
|
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 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 *, u32, u8);
|
||
|
extern int igb_setup_tx_resources(struct igb_ring *);
|
||
|
extern int igb_setup_rx_resources(struct igb_ring *);
|
||
|
extern void igb_free_tx_resources(struct igb_ring *);
|
||
|
extern void igb_free_rx_resources(struct igb_ring *);
|
||
|
extern void igb_configure_tx_ring(struct igb_adapter *, struct igb_ring *);
|
||
|
extern void igb_configure_rx_ring(struct igb_adapter *, struct igb_ring *);
|
||
|
extern void igb_setup_tctl(struct igb_adapter *);
|
||
|
extern void igb_setup_rctl(struct igb_adapter *);
|
||
|
extern netdev_tx_t igb_xmit_frame_ring(struct sk_buff *, struct igb_ring *);
|
||
|
extern void igb_unmap_and_free_tx_resource(struct igb_ring *,
|
||
|
struct igb_tx_buffer *);
|
||
|
extern void igb_alloc_rx_buffers(struct igb_ring *, u16);
|
||
|
extern void igb_update_stats(struct igb_adapter *, struct rtnl_link_stats64 *);
|
||
|
extern bool igb_has_link(struct igb_adapter *adapter);
|
||
|
extern void igb_set_ethtool_ops(struct net_device *);
|
||
|
extern void igb_power_up_link(struct igb_adapter *);
|
||
|
|
||
|
static inline s32 igb_reset_phy(struct e1000_hw *hw)
|
||
|
{
|
||
|
if (hw->phy.ops.reset)
|
||
|
return hw->phy.ops.reset(hw);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static inline s32 igb_read_phy_reg(struct e1000_hw *hw, u32 offset, u16 *data)
|
||
|
{
|
||
|
if (hw->phy.ops.read_reg)
|
||
|
return hw->phy.ops.read_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_reg)
|
||
|
return hw->phy.ops.write_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;
|
||
|
}
|
||
|
|
||
|
static inline struct netdev_queue *txring_txq(const struct igb_ring *tx_ring)
|
||
|
{
|
||
|
return netdev_get_tx_queue(tx_ring->netdev, tx_ring->queue_index);
|
||
|
}
|
||
|
|
||
|
#endif /* _IGB_H_ */
|