| /******************************************************************************* |
| |
| Intel 10 Gigabit PCI Express Linux driver |
| Copyright(c) 1999 - 2013 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 |
| |
| *******************************************************************************/ |
| |
| #ifndef _IXGBE_H_ |
| #define _IXGBE_H_ |
| |
| #include <linux/bitops.h> |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <linux/netdevice.h> |
| #include <linux/cpumask.h> |
| #include <linux/aer.h> |
| #include <linux/if_vlan.h> |
| #include <linux/jiffies.h> |
| |
| #include <linux/timecounter.h> |
| #include <linux/net_tstamp.h> |
| #include <linux/ptp_clock_kernel.h> |
| |
| #include "ixgbe_type.h" |
| #include "ixgbe_common.h" |
| #include "ixgbe_dcb.h" |
| #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| #define IXGBE_FCOE |
| #include "ixgbe_fcoe.h" |
| #endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */ |
| #ifdef CONFIG_IXGBE_DCA |
| #include <linux/dca.h> |
| #endif |
| |
| #include <net/busy_poll.h> |
| |
| #ifdef CONFIG_NET_RX_BUSY_POLL |
| #define BP_EXTENDED_STATS |
| #endif |
| /* common prefix used by pr_<> macros */ |
| #undef pr_fmt |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| /* TX/RX descriptor defines */ |
| #define IXGBE_DEFAULT_TXD 512 |
| #define IXGBE_DEFAULT_TX_WORK 256 |
| #define IXGBE_MAX_TXD 4096 |
| #define IXGBE_MIN_TXD 64 |
| |
| #if (PAGE_SIZE < 8192) |
| #define IXGBE_DEFAULT_RXD 512 |
| #else |
| #define IXGBE_DEFAULT_RXD 128 |
| #endif |
| #define IXGBE_MAX_RXD 4096 |
| #define IXGBE_MIN_RXD 64 |
| |
| #define IXGBE_ETH_P_LLDP 0x88CC |
| |
| /* flow control */ |
| #define IXGBE_MIN_FCRTL 0x40 |
| #define IXGBE_MAX_FCRTL 0x7FF80 |
| #define IXGBE_MIN_FCRTH 0x600 |
| #define IXGBE_MAX_FCRTH 0x7FFF0 |
| #define IXGBE_DEFAULT_FCPAUSE 0xFFFF |
| #define IXGBE_MIN_FCPAUSE 0 |
| #define IXGBE_MAX_FCPAUSE 0xFFFF |
| |
| /* Supported Rx Buffer Sizes */ |
| #define IXGBE_RXBUFFER_256 256 /* Used for skb receive header */ |
| #define IXGBE_RXBUFFER_2K 2048 |
| #define IXGBE_RXBUFFER_3K 3072 |
| #define IXGBE_RXBUFFER_4K 4096 |
| #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */ |
| |
| /* |
| * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we |
| * reserve 64 more, and skb_shared_info adds an additional 320 bytes more, |
| * this adds up to 448 bytes of extra data. |
| * |
| * Since netdev_alloc_skb now allocates a page fragment we can use a value |
| * of 256 and the resultant skb will have a truesize of 960 or less. |
| */ |
| #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256 |
| |
| /* How many Rx Buffers do we bundle into one write to the hardware ? */ |
| #define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */ |
| |
| enum ixgbe_tx_flags { |
| /* cmd_type flags */ |
| IXGBE_TX_FLAGS_HW_VLAN = 0x01, |
| IXGBE_TX_FLAGS_TSO = 0x02, |
| IXGBE_TX_FLAGS_TSTAMP = 0x04, |
| |
| /* olinfo flags */ |
| IXGBE_TX_FLAGS_CC = 0x08, |
| IXGBE_TX_FLAGS_IPV4 = 0x10, |
| IXGBE_TX_FLAGS_CSUM = 0x20, |
| |
| /* software defined flags */ |
| IXGBE_TX_FLAGS_SW_VLAN = 0x40, |
| IXGBE_TX_FLAGS_FCOE = 0x80, |
| }; |
| |
| /* VLAN info */ |
| #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000 |
| #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000 |
| #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29 |
| #define IXGBE_TX_FLAGS_VLAN_SHIFT 16 |
| |
| #define IXGBE_MAX_VF_MC_ENTRIES 30 |
| #define IXGBE_MAX_VF_FUNCTIONS 64 |
| #define IXGBE_MAX_VFTA_ENTRIES 128 |
| #define MAX_EMULATION_MAC_ADDRS 16 |
| #define IXGBE_MAX_PF_MACVLANS 15 |
| #define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset) |
| #define IXGBE_82599_VF_DEVICE_ID 0x10ED |
| #define IXGBE_X540_VF_DEVICE_ID 0x1515 |
| |
| struct vf_data_storage { |
| struct pci_dev *vfdev; |
| unsigned char vf_mac_addresses[ETH_ALEN]; |
| u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES]; |
| u16 num_vf_mc_hashes; |
| u16 default_vf_vlan_id; |
| u16 vlans_enabled; |
| bool clear_to_send; |
| bool pf_set_mac; |
| u16 pf_vlan; /* When set, guest VLAN config not allowed. */ |
| u16 pf_qos; |
| u16 tx_rate; |
| u16 vlan_count; |
| u8 spoofchk_enabled; |
| bool rss_query_enabled; |
| u8 trusted; |
| int xcast_mode; |
| unsigned int vf_api; |
| }; |
| |
| enum ixgbevf_xcast_modes { |
| IXGBEVF_XCAST_MODE_NONE = 0, |
| IXGBEVF_XCAST_MODE_MULTI, |
| IXGBEVF_XCAST_MODE_ALLMULTI, |
| }; |
| |
| struct vf_macvlans { |
| struct list_head l; |
| int vf; |
| bool free; |
| bool is_macvlan; |
| u8 vf_macvlan[ETH_ALEN]; |
| }; |
| |
| #define IXGBE_MAX_TXD_PWR 14 |
| #define IXGBE_MAX_DATA_PER_TXD (1 << IXGBE_MAX_TXD_PWR) |
| |
| /* Tx Descriptors needed, worst case */ |
| #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD) |
| #define DESC_NEEDED (MAX_SKB_FRAGS + 4) |
| |
| /* wrapper around a pointer to a socket buffer, |
| * so a DMA handle can be stored along with the buffer */ |
| struct ixgbe_tx_buffer { |
| union ixgbe_adv_tx_desc *next_to_watch; |
| unsigned long time_stamp; |
| struct sk_buff *skb; |
| unsigned int bytecount; |
| unsigned short gso_segs; |
| __be16 protocol; |
| DEFINE_DMA_UNMAP_ADDR(dma); |
| DEFINE_DMA_UNMAP_LEN(len); |
| u32 tx_flags; |
| }; |
| |
| struct ixgbe_rx_buffer { |
| struct sk_buff *skb; |
| dma_addr_t dma; |
| struct page *page; |
| unsigned int page_offset; |
| }; |
| |
| struct ixgbe_queue_stats { |
| u64 packets; |
| u64 bytes; |
| #ifdef BP_EXTENDED_STATS |
| u64 yields; |
| u64 misses; |
| u64 cleaned; |
| #endif /* BP_EXTENDED_STATS */ |
| }; |
| |
| struct ixgbe_tx_queue_stats { |
| u64 restart_queue; |
| u64 tx_busy; |
| u64 tx_done_old; |
| }; |
| |
| struct ixgbe_rx_queue_stats { |
| u64 rsc_count; |
| u64 rsc_flush; |
| u64 non_eop_descs; |
| u64 alloc_rx_page_failed; |
| u64 alloc_rx_buff_failed; |
| u64 csum_err; |
| }; |
| |
| #define IXGBE_TS_HDR_LEN 8 |
| |
| enum ixgbe_ring_state_t { |
| __IXGBE_TX_FDIR_INIT_DONE, |
| __IXGBE_TX_XPS_INIT_DONE, |
| __IXGBE_TX_DETECT_HANG, |
| __IXGBE_HANG_CHECK_ARMED, |
| __IXGBE_RX_RSC_ENABLED, |
| __IXGBE_RX_CSUM_UDP_ZERO_ERR, |
| __IXGBE_RX_FCOE, |
| }; |
| |
| struct ixgbe_fwd_adapter { |
| unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; |
| struct net_device *netdev; |
| struct ixgbe_adapter *real_adapter; |
| unsigned int tx_base_queue; |
| unsigned int rx_base_queue; |
| int pool; |
| }; |
| |
| #define check_for_tx_hang(ring) \ |
| test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state) |
| #define set_check_for_tx_hang(ring) \ |
| set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state) |
| #define clear_check_for_tx_hang(ring) \ |
| clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state) |
| #define ring_is_rsc_enabled(ring) \ |
| test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state) |
| #define set_ring_rsc_enabled(ring) \ |
| set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state) |
| #define clear_ring_rsc_enabled(ring) \ |
| clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state) |
| struct ixgbe_ring { |
| struct ixgbe_ring *next; /* pointer to next ring in q_vector */ |
| struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */ |
| struct net_device *netdev; /* netdev ring belongs to */ |
| struct device *dev; /* device for DMA mapping */ |
| struct ixgbe_fwd_adapter *l2_accel_priv; |
| void *desc; /* descriptor ring memory */ |
| union { |
| struct ixgbe_tx_buffer *tx_buffer_info; |
| struct ixgbe_rx_buffer *rx_buffer_info; |
| }; |
| unsigned long state; |
| u8 __iomem *tail; |
| dma_addr_t dma; /* phys. address of descriptor ring */ |
| unsigned int size; /* length in bytes */ |
| |
| u16 count; /* amount of descriptors */ |
| |
| u8 queue_index; /* needed for multiqueue queue management */ |
| u8 reg_idx; /* holds the special value that gets |
| * the hardware register offset |
| * associated with this ring, which is |
| * different for DCB and RSS modes |
| */ |
| u16 next_to_use; |
| u16 next_to_clean; |
| |
| unsigned long last_rx_timestamp; |
| |
| union { |
| u16 next_to_alloc; |
| struct { |
| u8 atr_sample_rate; |
| u8 atr_count; |
| }; |
| }; |
| |
| u8 dcb_tc; |
| struct ixgbe_queue_stats stats; |
| struct u64_stats_sync syncp; |
| union { |
| struct ixgbe_tx_queue_stats tx_stats; |
| struct ixgbe_rx_queue_stats rx_stats; |
| }; |
| } ____cacheline_internodealigned_in_smp; |
| |
| enum ixgbe_ring_f_enum { |
| RING_F_NONE = 0, |
| RING_F_VMDQ, /* SR-IOV uses the same ring feature */ |
| RING_F_RSS, |
| RING_F_FDIR, |
| #ifdef IXGBE_FCOE |
| RING_F_FCOE, |
| #endif /* IXGBE_FCOE */ |
| |
| RING_F_ARRAY_SIZE /* must be last in enum set */ |
| }; |
| |
| #define IXGBE_MAX_RSS_INDICES 16 |
| #define IXGBE_MAX_RSS_INDICES_X550 63 |
| #define IXGBE_MAX_VMDQ_INDICES 64 |
| #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */ |
| #define IXGBE_MAX_FCOE_INDICES 8 |
| #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1) |
| #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1) |
| #define IXGBE_MAX_L2A_QUEUES 4 |
| #define IXGBE_BAD_L2A_QUEUE 3 |
| #define IXGBE_MAX_MACVLANS 31 |
| #define IXGBE_MAX_DCBMACVLANS 8 |
| |
| struct ixgbe_ring_feature { |
| u16 limit; /* upper limit on feature indices */ |
| u16 indices; /* current value of indices */ |
| u16 mask; /* Mask used for feature to ring mapping */ |
| u16 offset; /* offset to start of feature */ |
| } ____cacheline_internodealigned_in_smp; |
| |
| #define IXGBE_82599_VMDQ_8Q_MASK 0x78 |
| #define IXGBE_82599_VMDQ_4Q_MASK 0x7C |
| #define IXGBE_82599_VMDQ_2Q_MASK 0x7E |
| |
| /* |
| * FCoE requires that all Rx buffers be over 2200 bytes in length. Since |
| * this is twice the size of a half page we need to double the page order |
| * for FCoE enabled Rx queues. |
| */ |
| static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring) |
| { |
| #ifdef IXGBE_FCOE |
| if (test_bit(__IXGBE_RX_FCOE, &ring->state)) |
| return (PAGE_SIZE < 8192) ? IXGBE_RXBUFFER_4K : |
| IXGBE_RXBUFFER_3K; |
| #endif |
| return IXGBE_RXBUFFER_2K; |
| } |
| |
| static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring) |
| { |
| #ifdef IXGBE_FCOE |
| if (test_bit(__IXGBE_RX_FCOE, &ring->state)) |
| return (PAGE_SIZE < 8192) ? 1 : 0; |
| #endif |
| return 0; |
| } |
| #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring)) |
| |
| struct ixgbe_ring_container { |
| struct ixgbe_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 */ |
| }; |
| |
| /* iterator for handling rings in ring container */ |
| #define ixgbe_for_each_ring(pos, head) \ |
| for (pos = (head).ring; pos != NULL; pos = pos->next) |
| |
| #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \ |
| ? 8 : 1) |
| #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS |
| |
| /* MAX_Q_VECTORS of these are allocated, |
| * but we only use one per queue-specific vector. |
| */ |
| struct ixgbe_q_vector { |
| struct ixgbe_adapter *adapter; |
| #ifdef CONFIG_IXGBE_DCA |
| int cpu; /* CPU for DCA */ |
| #endif |
| u16 v_idx; /* index of q_vector within array, also used for |
| * finding the bit in EICR and friends that |
| * represents the vector for this ring */ |
| u16 itr; /* Interrupt throttle rate written to EITR */ |
| struct ixgbe_ring_container rx, tx; |
| |
| struct napi_struct napi; |
| cpumask_t affinity_mask; |
| int numa_node; |
| struct rcu_head rcu; /* to avoid race with update stats on free */ |
| char name[IFNAMSIZ + 9]; |
| |
| #ifdef CONFIG_NET_RX_BUSY_POLL |
| atomic_t state; |
| #endif /* CONFIG_NET_RX_BUSY_POLL */ |
| |
| /* for dynamic allocation of rings associated with this q_vector */ |
| struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp; |
| }; |
| |
| #ifdef CONFIG_NET_RX_BUSY_POLL |
| enum ixgbe_qv_state_t { |
| IXGBE_QV_STATE_IDLE = 0, |
| IXGBE_QV_STATE_NAPI, |
| IXGBE_QV_STATE_POLL, |
| IXGBE_QV_STATE_DISABLE |
| }; |
| |
| static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector) |
| { |
| /* reset state to idle */ |
| atomic_set(&q_vector->state, IXGBE_QV_STATE_IDLE); |
| } |
| |
| /* called from the device poll routine to get ownership of a q_vector */ |
| static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector) |
| { |
| int rc = atomic_cmpxchg(&q_vector->state, IXGBE_QV_STATE_IDLE, |
| IXGBE_QV_STATE_NAPI); |
| #ifdef BP_EXTENDED_STATS |
| if (rc != IXGBE_QV_STATE_IDLE) |
| q_vector->tx.ring->stats.yields++; |
| #endif |
| |
| return rc == IXGBE_QV_STATE_IDLE; |
| } |
| |
| /* returns true is someone tried to get the qv while napi had it */ |
| static inline void ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector) |
| { |
| WARN_ON(atomic_read(&q_vector->state) != IXGBE_QV_STATE_NAPI); |
| |
| /* flush any outstanding Rx frames */ |
| if (q_vector->napi.gro_list) |
| napi_gro_flush(&q_vector->napi, false); |
| |
| /* reset state to idle */ |
| atomic_set(&q_vector->state, IXGBE_QV_STATE_IDLE); |
| } |
| |
| /* called from ixgbe_low_latency_poll() */ |
| static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector) |
| { |
| int rc = atomic_cmpxchg(&q_vector->state, IXGBE_QV_STATE_IDLE, |
| IXGBE_QV_STATE_POLL); |
| #ifdef BP_EXTENDED_STATS |
| if (rc != IXGBE_QV_STATE_IDLE) |
| q_vector->tx.ring->stats.yields++; |
| #endif |
| return rc == IXGBE_QV_STATE_IDLE; |
| } |
| |
| /* returns true if someone tried to get the qv while it was locked */ |
| static inline void ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector) |
| { |
| WARN_ON(atomic_read(&q_vector->state) != IXGBE_QV_STATE_POLL); |
| |
| /* reset state to idle */ |
| atomic_set(&q_vector->state, IXGBE_QV_STATE_IDLE); |
| } |
| |
| /* true if a socket is polling, even if it did not get the lock */ |
| static inline bool ixgbe_qv_busy_polling(struct ixgbe_q_vector *q_vector) |
| { |
| return atomic_read(&q_vector->state) == IXGBE_QV_STATE_POLL; |
| } |
| |
| /* false if QV is currently owned */ |
| static inline bool ixgbe_qv_disable(struct ixgbe_q_vector *q_vector) |
| { |
| int rc = atomic_cmpxchg(&q_vector->state, IXGBE_QV_STATE_IDLE, |
| IXGBE_QV_STATE_DISABLE); |
| |
| return rc == IXGBE_QV_STATE_IDLE; |
| } |
| |
| #else /* CONFIG_NET_RX_BUSY_POLL */ |
| static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector) |
| { |
| } |
| |
| static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector) |
| { |
| return true; |
| } |
| |
| static inline bool ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector) |
| { |
| return false; |
| } |
| |
| static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector) |
| { |
| return false; |
| } |
| |
| static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector) |
| { |
| return false; |
| } |
| |
| static inline bool ixgbe_qv_busy_polling(struct ixgbe_q_vector *q_vector) |
| { |
| return false; |
| } |
| |
| static inline bool ixgbe_qv_disable(struct ixgbe_q_vector *q_vector) |
| { |
| return true; |
| } |
| |
| #endif /* CONFIG_NET_RX_BUSY_POLL */ |
| |
| #ifdef CONFIG_IXGBE_HWMON |
| |
| #define IXGBE_HWMON_TYPE_LOC 0 |
| #define IXGBE_HWMON_TYPE_TEMP 1 |
| #define IXGBE_HWMON_TYPE_CAUTION 2 |
| #define IXGBE_HWMON_TYPE_MAX 3 |
| |
| struct hwmon_attr { |
| struct device_attribute dev_attr; |
| struct ixgbe_hw *hw; |
| struct ixgbe_thermal_diode_data *sensor; |
| char name[12]; |
| }; |
| |
| struct hwmon_buff { |
| struct attribute_group group; |
| const struct attribute_group *groups[2]; |
| struct attribute *attrs[IXGBE_MAX_SENSORS * 4 + 1]; |
| struct hwmon_attr hwmon_list[IXGBE_MAX_SENSORS * 4]; |
| unsigned int n_hwmon; |
| }; |
| #endif /* CONFIG_IXGBE_HWMON */ |
| |
| /* |
| * microsecond values for various ITR rates shifted by 2 to fit itr register |
| * with the first 3 bits reserved 0 |
| */ |
| #define IXGBE_MIN_RSC_ITR 24 |
| #define IXGBE_100K_ITR 40 |
| #define IXGBE_20K_ITR 200 |
| #define IXGBE_12K_ITR 336 |
| |
| /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */ |
| static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc, |
| const u32 stat_err_bits) |
| { |
| return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); |
| } |
| |
| static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring) |
| { |
| u16 ntc = ring->next_to_clean; |
| u16 ntu = ring->next_to_use; |
| |
| return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1; |
| } |
| |
| #define IXGBE_RX_DESC(R, i) \ |
| (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i])) |
| #define IXGBE_TX_DESC(R, i) \ |
| (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i])) |
| #define IXGBE_TX_CTXTDESC(R, i) \ |
| (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i])) |
| |
| #define IXGBE_MAX_JUMBO_FRAME_SIZE 9728 /* Maximum Supported Size 9.5KB */ |
| #ifdef IXGBE_FCOE |
| /* Use 3K as the baby jumbo frame size for FCoE */ |
| #define IXGBE_FCOE_JUMBO_FRAME_SIZE 3072 |
| #endif /* IXGBE_FCOE */ |
| |
| #define OTHER_VECTOR 1 |
| #define NON_Q_VECTORS (OTHER_VECTOR) |
| |
| #define MAX_MSIX_VECTORS_82599 64 |
| #define MAX_Q_VECTORS_82599 64 |
| #define MAX_MSIX_VECTORS_82598 18 |
| #define MAX_Q_VECTORS_82598 16 |
| |
| struct ixgbe_mac_addr { |
| u8 addr[ETH_ALEN]; |
| u16 pool; |
| u16 state; /* bitmask */ |
| }; |
| |
| #define IXGBE_MAC_STATE_DEFAULT 0x1 |
| #define IXGBE_MAC_STATE_MODIFIED 0x2 |
| #define IXGBE_MAC_STATE_IN_USE 0x4 |
| |
| #define MAX_Q_VECTORS MAX_Q_VECTORS_82599 |
| #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599 |
| |
| #define MIN_MSIX_Q_VECTORS 1 |
| #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS) |
| |
| /* default to trying for four seconds */ |
| #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ) |
| #define IXGBE_SFP_POLL_JIFFIES (2 * HZ) /* SFP poll every 2 seconds */ |
| |
| /* board specific private data structure */ |
| struct ixgbe_adapter { |
| unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; |
| /* OS defined structs */ |
| struct net_device *netdev; |
| struct pci_dev *pdev; |
| |
| unsigned long state; |
| |
| /* Some features need tri-state capability, |
| * thus the additional *_CAPABLE flags. |
| */ |
| u32 flags; |
| #define IXGBE_FLAG_MSI_ENABLED (u32)(1 << 1) |
| #define IXGBE_FLAG_MSIX_ENABLED (u32)(1 << 3) |
| #define IXGBE_FLAG_RX_1BUF_CAPABLE (u32)(1 << 4) |
| #define IXGBE_FLAG_RX_PS_CAPABLE (u32)(1 << 5) |
| #define IXGBE_FLAG_RX_PS_ENABLED (u32)(1 << 6) |
| #define IXGBE_FLAG_DCA_ENABLED (u32)(1 << 8) |
| #define IXGBE_FLAG_DCA_CAPABLE (u32)(1 << 9) |
| #define IXGBE_FLAG_IMIR_ENABLED (u32)(1 << 10) |
| #define IXGBE_FLAG_MQ_CAPABLE (u32)(1 << 11) |
| #define IXGBE_FLAG_DCB_ENABLED (u32)(1 << 12) |
| #define IXGBE_FLAG_VMDQ_CAPABLE (u32)(1 << 13) |
| #define IXGBE_FLAG_VMDQ_ENABLED (u32)(1 << 14) |
| #define IXGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 15) |
| #define IXGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 16) |
| #define IXGBE_FLAG_NEED_LINK_CONFIG (u32)(1 << 17) |
| #define IXGBE_FLAG_FDIR_HASH_CAPABLE (u32)(1 << 18) |
| #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE (u32)(1 << 19) |
| #define IXGBE_FLAG_FCOE_CAPABLE (u32)(1 << 20) |
| #define IXGBE_FLAG_FCOE_ENABLED (u32)(1 << 21) |
| #define IXGBE_FLAG_SRIOV_CAPABLE (u32)(1 << 22) |
| #define IXGBE_FLAG_SRIOV_ENABLED (u32)(1 << 23) |
| #define IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE BIT(24) |
| #define IXGBE_FLAG_RX_HWTSTAMP_ENABLED BIT(25) |
| #define IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER BIT(26) |
| |
| u32 flags2; |
| #define IXGBE_FLAG2_RSC_CAPABLE (u32)(1 << 0) |
| #define IXGBE_FLAG2_RSC_ENABLED (u32)(1 << 1) |
| #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE (u32)(1 << 2) |
| #define IXGBE_FLAG2_TEMP_SENSOR_EVENT (u32)(1 << 3) |
| #define IXGBE_FLAG2_SEARCH_FOR_SFP (u32)(1 << 4) |
| #define IXGBE_FLAG2_SFP_NEEDS_RESET (u32)(1 << 5) |
| #define IXGBE_FLAG2_RESET_REQUESTED (u32)(1 << 6) |
| #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT (u32)(1 << 7) |
| #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP (u32)(1 << 8) |
| #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP (u32)(1 << 9) |
| #define IXGBE_FLAG2_PTP_PPS_ENABLED (u32)(1 << 10) |
| #define IXGBE_FLAG2_PHY_INTERRUPT (u32)(1 << 11) |
| #define IXGBE_FLAG2_VXLAN_REREG_NEEDED BIT(12) |
| #define IXGBE_FLAG2_VLAN_PROMISC BIT(13) |
| |
| /* Tx fast path data */ |
| int num_tx_queues; |
| u16 tx_itr_setting; |
| u16 tx_work_limit; |
| |
| /* Rx fast path data */ |
| int num_rx_queues; |
| u16 rx_itr_setting; |
| |
| /* Port number used to identify VXLAN traffic */ |
| __be16 vxlan_port; |
| |
| /* TX */ |
| struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp; |
| |
| u64 restart_queue; |
| u64 lsc_int; |
| u32 tx_timeout_count; |
| |
| /* RX */ |
| struct ixgbe_ring *rx_ring[MAX_RX_QUEUES]; |
| int num_rx_pools; /* == num_rx_queues in 82598 */ |
| int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */ |
| u64 hw_csum_rx_error; |
| u64 hw_rx_no_dma_resources; |
| u64 rsc_total_count; |
| u64 rsc_total_flush; |
| u64 non_eop_descs; |
| u32 alloc_rx_page_failed; |
| u32 alloc_rx_buff_failed; |
| |
| struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS]; |
| |
| /* DCB parameters */ |
| struct ieee_pfc *ixgbe_ieee_pfc; |
| struct ieee_ets *ixgbe_ieee_ets; |
| struct ixgbe_dcb_config dcb_cfg; |
| struct ixgbe_dcb_config temp_dcb_cfg; |
| u8 dcb_set_bitmap; |
| u8 dcbx_cap; |
| enum ixgbe_fc_mode last_lfc_mode; |
| |
| int num_q_vectors; /* current number of q_vectors for device */ |
| int max_q_vectors; /* true count of q_vectors for device */ |
| struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE]; |
| struct msix_entry *msix_entries; |
| |
| u32 test_icr; |
| struct ixgbe_ring test_tx_ring; |
| struct ixgbe_ring test_rx_ring; |
| |
| /* structs defined in ixgbe_hw.h */ |
| struct ixgbe_hw hw; |
| u16 msg_enable; |
| struct ixgbe_hw_stats stats; |
| |
| u64 tx_busy; |
| unsigned int tx_ring_count; |
| unsigned int rx_ring_count; |
| |
| u32 link_speed; |
| bool link_up; |
| unsigned long sfp_poll_time; |
| unsigned long link_check_timeout; |
| |
| struct timer_list service_timer; |
| struct work_struct service_task; |
| |
| struct hlist_head fdir_filter_list; |
| unsigned long fdir_overflow; /* number of times ATR was backed off */ |
| union ixgbe_atr_input fdir_mask; |
| int fdir_filter_count; |
| u32 fdir_pballoc; |
| u32 atr_sample_rate; |
| spinlock_t fdir_perfect_lock; |
| |
| #ifdef IXGBE_FCOE |
| struct ixgbe_fcoe fcoe; |
| #endif /* IXGBE_FCOE */ |
| u8 __iomem *io_addr; /* Mainly for iounmap use */ |
| u32 wol; |
| |
| u16 bridge_mode; |
| |
| u16 eeprom_verh; |
| u16 eeprom_verl; |
| u16 eeprom_cap; |
| |
| u32 interrupt_event; |
| u32 led_reg; |
| |
| struct ptp_clock *ptp_clock; |
| struct ptp_clock_info ptp_caps; |
| struct work_struct ptp_tx_work; |
| struct sk_buff *ptp_tx_skb; |
| struct hwtstamp_config tstamp_config; |
| unsigned long ptp_tx_start; |
| unsigned long last_overflow_check; |
| unsigned long last_rx_ptp_check; |
| unsigned long last_rx_timestamp; |
| spinlock_t tmreg_lock; |
| struct cyclecounter hw_cc; |
| struct timecounter hw_tc; |
| u32 base_incval; |
| u32 tx_hwtstamp_timeouts; |
| u32 rx_hwtstamp_cleared; |
| void (*ptp_setup_sdp)(struct ixgbe_adapter *); |
| |
| /* SR-IOV */ |
| DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS); |
| unsigned int num_vfs; |
| struct vf_data_storage *vfinfo; |
| int vf_rate_link_speed; |
| struct vf_macvlans vf_mvs; |
| struct vf_macvlans *mv_list; |
| |
| u32 timer_event_accumulator; |
| u32 vferr_refcount; |
| struct ixgbe_mac_addr *mac_table; |
| struct kobject *info_kobj; |
| #ifdef CONFIG_IXGBE_HWMON |
| struct hwmon_buff *ixgbe_hwmon_buff; |
| #endif /* CONFIG_IXGBE_HWMON */ |
| #ifdef CONFIG_DEBUG_FS |
| struct dentry *ixgbe_dbg_adapter; |
| #endif /*CONFIG_DEBUG_FS*/ |
| |
| u8 default_up; |
| unsigned long fwd_bitmask; /* Bitmask indicating in use pools */ |
| |
| #define IXGBE_MAX_LINK_HANDLE 10 |
| struct ixgbe_mat_field *jump_tables[IXGBE_MAX_LINK_HANDLE]; |
| unsigned long tables; |
| |
| /* maximum number of RETA entries among all devices supported by ixgbe |
| * driver: currently it's x550 device in non-SRIOV mode |
| */ |
| #define IXGBE_MAX_RETA_ENTRIES 512 |
| u8 rss_indir_tbl[IXGBE_MAX_RETA_ENTRIES]; |
| |
| #define IXGBE_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */ |
| u32 rss_key[IXGBE_RSS_KEY_SIZE / sizeof(u32)]; |
| }; |
| |
| static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter) |
| { |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82598EB: |
| case ixgbe_mac_82599EB: |
| case ixgbe_mac_X540: |
| return IXGBE_MAX_RSS_INDICES; |
| case ixgbe_mac_X550: |
| case ixgbe_mac_X550EM_x: |
| return IXGBE_MAX_RSS_INDICES_X550; |
| default: |
| return 0; |
| } |
| } |
| |
| struct ixgbe_fdir_filter { |
| struct hlist_node fdir_node; |
| union ixgbe_atr_input filter; |
| u16 sw_idx; |
| u16 action; |
| }; |
| |
| enum ixgbe_state_t { |
| __IXGBE_TESTING, |
| __IXGBE_RESETTING, |
| __IXGBE_DOWN, |
| __IXGBE_DISABLED, |
| __IXGBE_REMOVING, |
| __IXGBE_SERVICE_SCHED, |
| __IXGBE_SERVICE_INITED, |
| __IXGBE_IN_SFP_INIT, |
| __IXGBE_PTP_RUNNING, |
| __IXGBE_PTP_TX_IN_PROGRESS, |
| }; |
| |
| struct ixgbe_cb { |
| union { /* Union defining head/tail partner */ |
| struct sk_buff *head; |
| struct sk_buff *tail; |
| }; |
| dma_addr_t dma; |
| u16 append_cnt; |
| bool page_released; |
| }; |
| #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb) |
| |
| enum ixgbe_boards { |
| board_82598, |
| board_82599, |
| board_X540, |
| board_X550, |
| board_X550EM_x, |
| }; |
| |
| extern struct ixgbe_info ixgbe_82598_info; |
| extern struct ixgbe_info ixgbe_82599_info; |
| extern struct ixgbe_info ixgbe_X540_info; |
| extern struct ixgbe_info ixgbe_X550_info; |
| extern struct ixgbe_info ixgbe_X550EM_x_info; |
| #ifdef CONFIG_IXGBE_DCB |
| extern const struct dcbnl_rtnl_ops dcbnl_ops; |
| #endif |
| |
| extern char ixgbe_driver_name[]; |
| extern const char ixgbe_driver_version[]; |
| #ifdef IXGBE_FCOE |
| extern char ixgbe_default_device_descr[]; |
| #endif /* IXGBE_FCOE */ |
| |
| int ixgbe_open(struct net_device *netdev); |
| int ixgbe_close(struct net_device *netdev); |
| void ixgbe_up(struct ixgbe_adapter *adapter); |
| void ixgbe_down(struct ixgbe_adapter *adapter); |
| void ixgbe_reinit_locked(struct ixgbe_adapter *adapter); |
| void ixgbe_reset(struct ixgbe_adapter *adapter); |
| void ixgbe_set_ethtool_ops(struct net_device *netdev); |
| int ixgbe_setup_rx_resources(struct ixgbe_ring *); |
| int ixgbe_setup_tx_resources(struct ixgbe_ring *); |
| void ixgbe_free_rx_resources(struct ixgbe_ring *); |
| void ixgbe_free_tx_resources(struct ixgbe_ring *); |
| void ixgbe_configure_rx_ring(struct ixgbe_adapter *, struct ixgbe_ring *); |
| void ixgbe_configure_tx_ring(struct ixgbe_adapter *, struct ixgbe_ring *); |
| void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, struct ixgbe_ring *); |
| void ixgbe_update_stats(struct ixgbe_adapter *adapter); |
| int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter); |
| int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id, |
| u16 subdevice_id); |
| #ifdef CONFIG_PCI_IOV |
| void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter); |
| #endif |
| int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, |
| const u8 *addr, u16 queue); |
| int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter, |
| const u8 *addr, u16 queue); |
| void ixgbe_update_pf_promisc_vlvf(struct ixgbe_adapter *adapter, u32 vid); |
| void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter); |
| netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *, struct ixgbe_adapter *, |
| struct ixgbe_ring *); |
| void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *, |
| struct ixgbe_tx_buffer *); |
| void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16); |
| void ixgbe_write_eitr(struct ixgbe_q_vector *); |
| int ixgbe_poll(struct napi_struct *napi, int budget); |
| int ethtool_ioctl(struct ifreq *ifr); |
| s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw); |
| s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl); |
| s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl); |
| s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_hash_dword input, |
| union ixgbe_atr_hash_dword common, |
| u8 queue); |
| s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input_mask); |
| s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input, |
| u16 soft_id, u8 queue); |
| s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input, |
| u16 soft_id); |
| void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input, |
| union ixgbe_atr_input *mask); |
| int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter, |
| struct ixgbe_fdir_filter *input, |
| u16 sw_idx); |
| void ixgbe_set_rx_mode(struct net_device *netdev); |
| #ifdef CONFIG_IXGBE_DCB |
| void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter); |
| #endif |
| int ixgbe_setup_tc(struct net_device *dev, u8 tc); |
| void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32); |
| void ixgbe_do_reset(struct net_device *netdev); |
| #ifdef CONFIG_IXGBE_HWMON |
| void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter); |
| int ixgbe_sysfs_init(struct ixgbe_adapter *adapter); |
| #endif /* CONFIG_IXGBE_HWMON */ |
| #ifdef IXGBE_FCOE |
| void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter); |
| int ixgbe_fso(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first, |
| u8 *hdr_len); |
| int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, |
| union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb); |
| int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid, |
| struct scatterlist *sgl, unsigned int sgc); |
| int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid, |
| struct scatterlist *sgl, unsigned int sgc); |
| int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid); |
| int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter); |
| void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter); |
| int ixgbe_fcoe_enable(struct net_device *netdev); |
| int ixgbe_fcoe_disable(struct net_device *netdev); |
| #ifdef CONFIG_IXGBE_DCB |
| u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter); |
| u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up); |
| #endif /* CONFIG_IXGBE_DCB */ |
| int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type); |
| int ixgbe_fcoe_get_hbainfo(struct net_device *netdev, |
| struct netdev_fcoe_hbainfo *info); |
| u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter); |
| #endif /* IXGBE_FCOE */ |
| #ifdef CONFIG_DEBUG_FS |
| void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter); |
| void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter); |
| void ixgbe_dbg_init(void); |
| void ixgbe_dbg_exit(void); |
| #else |
| static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {} |
| static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {} |
| static inline void ixgbe_dbg_init(void) {} |
| static inline void ixgbe_dbg_exit(void) {} |
| #endif /* CONFIG_DEBUG_FS */ |
| static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring) |
| { |
| return netdev_get_tx_queue(ring->netdev, ring->queue_index); |
| } |
| |
| void ixgbe_ptp_init(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_stop(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_rx_pktstamp(struct ixgbe_q_vector *, struct sk_buff *); |
| void ixgbe_ptp_rx_rgtstamp(struct ixgbe_q_vector *, struct sk_buff *skb); |
| static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring, |
| union ixgbe_adv_rx_desc *rx_desc, |
| struct sk_buff *skb) |
| { |
| if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_TSIP))) { |
| ixgbe_ptp_rx_pktstamp(rx_ring->q_vector, skb); |
| return; |
| } |
| |
| if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS))) |
| return; |
| |
| ixgbe_ptp_rx_rgtstamp(rx_ring->q_vector, skb); |
| |
| /* Update the last_rx_timestamp timer in order to enable watchdog check |
| * for error case of latched timestamp on a dropped packet. |
| */ |
| rx_ring->last_rx_timestamp = jiffies; |
| } |
| |
| int ixgbe_ptp_set_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr); |
| int ixgbe_ptp_get_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr); |
| void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_reset(struct ixgbe_adapter *adapter); |
| void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter); |
| #ifdef CONFIG_PCI_IOV |
| void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter); |
| #endif |
| |
| netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
| struct ixgbe_adapter *adapter, |
| struct ixgbe_ring *tx_ring); |
| u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter); |
| void ixgbe_store_reta(struct ixgbe_adapter *adapter); |
| #endif /* _IXGBE_H_ */ |