/* * Linux network driver for Brocade Converged Network Adapter. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License (GPL) Version 2 as * published by the Free Software Foundation * * This program is distributed in the hope that 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. */ /* * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. * All rights reserved * www.brocade.com */ #ifndef __BNAD_H__ #define __BNAD_H__ #include #include #include #include #include #include #include /* Fix for IA64 */ #include #include #include #include #include "bna.h" #define BNAD_TXQ_DEPTH 2048 #define BNAD_RXQ_DEPTH 2048 #define BNAD_MAX_TX 1 #define BNAD_MAX_TXQ_PER_TX 8 /* 8 priority queues */ #define BNAD_TXQ_NUM 1 #define BNAD_MAX_RX 1 #define BNAD_MAX_RXP_PER_RX 16 #define BNAD_MAX_RXQ_PER_RXP 2 /* * Control structure pointed to ccb->ctrl, which * determines the NAPI / LRO behavior CCB * There is 1:1 corres. between ccb & ctrl */ struct bnad_rx_ctrl { struct bna_ccb *ccb; struct bnad *bnad; unsigned long flags; struct napi_struct napi; u64 rx_intr_ctr; u64 rx_poll_ctr; u64 rx_schedule; u64 rx_keep_poll; u64 rx_complete; }; #define BNAD_RXMODE_PROMISC_DEFAULT BNA_RXMODE_PROMISC /* * GLOBAL #defines (CONSTANTS) */ #define BNAD_NAME "bna" #define BNAD_NAME_LEN 64 #define BNAD_VERSION "3.0.2.1" #define BNAD_MAILBOX_MSIX_INDEX 0 #define BNAD_MAILBOX_MSIX_VECTORS 1 #define BNAD_INTX_TX_IB_BITMASK 0x1 #define BNAD_INTX_RX_IB_BITMASK 0x2 #define BNAD_STATS_TIMER_FREQ 1000 /* in msecs */ #define BNAD_DIM_TIMER_FREQ 1000 /* in msecs */ #define BNAD_IOCETH_TIMEOUT 10000 #define BNAD_MAX_Q_DEPTH 0x10000 #define BNAD_MIN_Q_DEPTH 0x200 #define BNAD_MAX_RXQ_DEPTH (BNAD_MAX_Q_DEPTH / bnad_rxqs_per_cq) /* keeping MAX TX and RX Q depth equal */ #define BNAD_MAX_TXQ_DEPTH BNAD_MAX_RXQ_DEPTH #define BNAD_JUMBO_MTU 9000 #define BNAD_NETIF_WAKE_THRESHOLD 8 #define BNAD_RXQ_REFILL_THRESHOLD_SHIFT 3 /* Bit positions for tcb->flags */ #define BNAD_TXQ_FREE_SENT 0 #define BNAD_TXQ_TX_STARTED 1 /* Bit positions for rcb->flags */ #define BNAD_RXQ_REFILL 0 #define BNAD_RXQ_STARTED 1 /* Resource limits */ #define BNAD_NUM_TXQ (bnad->num_tx * bnad->num_txq_per_tx) #define BNAD_NUM_RXP (bnad->num_rx * bnad->num_rxp_per_rx) /* * DATA STRUCTURES */ /* enums */ enum bnad_intr_source { BNAD_INTR_TX = 1, BNAD_INTR_RX = 2 }; enum bnad_link_state { BNAD_LS_DOWN = 0, BNAD_LS_UP = 1 }; struct bnad_completion { struct completion ioc_comp; struct completion ucast_comp; struct completion mcast_comp; struct completion tx_comp; struct completion rx_comp; struct completion stats_comp; struct completion enet_comp; struct completion mtu_comp; u8 ioc_comp_status; u8 ucast_comp_status; u8 mcast_comp_status; u8 tx_comp_status; u8 rx_comp_status; u8 stats_comp_status; u8 port_comp_status; u8 mtu_comp_status; }; /* Tx Rx Control Stats */ struct bnad_drv_stats { u64 netif_queue_stop; u64 netif_queue_wakeup; u64 netif_queue_stopped; u64 tso4; u64 tso6; u64 tso_err; u64 tcpcsum_offload; u64 udpcsum_offload; u64 csum_help; u64 tx_skb_too_short; u64 tx_skb_stopping; u64 tx_skb_max_vectors; u64 tx_skb_mss_too_long; u64 tx_skb_tso_too_short; u64 tx_skb_tso_prepare; u64 tx_skb_non_tso_too_long; u64 tx_skb_tcp_hdr; u64 tx_skb_udp_hdr; u64 tx_skb_csum_err; u64 tx_skb_headlen_too_long; u64 tx_skb_headlen_zero; u64 tx_skb_frag_zero; u64 tx_skb_len_mismatch; u64 hw_stats_updates; u64 netif_rx_dropped; u64 link_toggle; u64 cee_toggle; u64 rxp_info_alloc_failed; u64 mbox_intr_disabled; u64 mbox_intr_enabled; u64 tx_unmap_q_alloc_failed; u64 rx_unmap_q_alloc_failed; u64 rxbuf_alloc_failed; }; /* Complete driver stats */ struct bnad_stats { struct bnad_drv_stats drv_stats; struct bna_stats *bna_stats; }; /* Tx / Rx Resources */ struct bnad_tx_res_info { struct bna_res_info res_info[BNA_TX_RES_T_MAX]; }; struct bnad_rx_res_info { struct bna_res_info res_info[BNA_RX_RES_T_MAX]; }; struct bnad_tx_info { struct bna_tx *tx; /* 1:1 between tx_info & tx */ struct bna_tcb *tcb[BNAD_MAX_TXQ_PER_TX]; u32 tx_id; } ____cacheline_aligned; struct bnad_rx_info { struct bna_rx *rx; /* 1:1 between rx_info & rx */ struct bnad_rx_ctrl rx_ctrl[BNAD_MAX_RXP_PER_RX]; u32 rx_id; } ____cacheline_aligned; /* Unmap queues for Tx / Rx cleanup */ struct bnad_skb_unmap { struct sk_buff *skb; DEFINE_DMA_UNMAP_ADDR(dma_addr); }; struct bnad_unmap_q { u32 producer_index; u32 consumer_index; u32 q_depth; /* This should be the last one */ struct bnad_skb_unmap unmap_array[1]; }; /* Bit mask values for bnad->cfg_flags */ #define BNAD_CF_DIM_ENABLED 0x01 /* DIM */ #define BNAD_CF_PROMISC 0x02 #define BNAD_CF_ALLMULTI 0x04 #define BNAD_CF_MSIX 0x08 /* If in MSIx mode */ /* Defines for run_flags bit-mask */ /* Set, tested & cleared using xxx_bit() functions */ /* Values indicated bit positions */ #define BNAD_RF_CEE_RUNNING 0 #define BNAD_RF_MTU_SET 1 #define BNAD_RF_MBOX_IRQ_DISABLED 2 #define BNAD_RF_NETDEV_REGISTERED 3 #define BNAD_RF_DIM_TIMER_RUNNING 4 #define BNAD_RF_STATS_TIMER_RUNNING 5 #define BNAD_RF_TX_PRIO_SET 6 /* Define for Fast Path flags */ /* Defined as bit positions */ #define BNAD_FP_IN_RX_PATH 0 struct bnad { struct net_device *netdev; /* Data path */ struct bnad_tx_info tx_info[BNAD_MAX_TX]; struct bnad_rx_info rx_info[BNAD_MAX_RX]; unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; /* * These q numbers are global only because * they are used to calculate MSIx vectors. * Actually the exact # of queues are per Tx/Rx * object. */ u32 num_tx; u32 num_rx; u32 num_txq_per_tx; u32 num_rxp_per_rx; u32 txq_depth; u32 rxq_depth; u8 tx_coalescing_timeo; u8 rx_coalescing_timeo; struct bna_rx_config rx_config[BNAD_MAX_RX]; struct bna_tx_config tx_config[BNAD_MAX_TX]; void __iomem *bar0; /* BAR0 address */ struct bna bna; u32 cfg_flags; unsigned long run_flags; struct pci_dev *pcidev; u64 mmio_start; u64 mmio_len; u32 msix_num; struct msix_entry *msix_table; struct mutex conf_mutex; spinlock_t bna_lock ____cacheline_aligned; /* Timers */ struct timer_list ioc_timer; struct timer_list dim_timer; struct timer_list stats_timer; /* Control path resources, memory & irq */ struct bna_res_info res_info[BNA_RES_T_MAX]; struct bna_res_info mod_res_info[BNA_MOD_RES_T_MAX]; struct bnad_tx_res_info tx_res_info[BNAD_MAX_TX]; struct bnad_rx_res_info rx_res_info[BNAD_MAX_RX]; struct bnad_completion bnad_completions; /* Burnt in MAC address */ mac_t perm_addr; struct tasklet_struct tx_free_tasklet; /* Statistics */ struct bnad_stats stats; struct bnad_diag *diag; char adapter_name[BNAD_NAME_LEN]; char port_name[BNAD_NAME_LEN]; char mbox_irq_name[BNAD_NAME_LEN]; }; /* * EXTERN VARIABLES */ extern struct firmware *bfi_fw; extern u32 bnad_rxqs_per_cq; /* * EXTERN PROTOTYPES */ extern u32 *cna_get_firmware_buf(struct pci_dev *pdev); /* Netdev entry point prototypes */ extern void bnad_set_rx_mode(struct net_device *netdev); extern struct net_device_stats *bnad_get_netdev_stats( struct net_device *netdev); extern int bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr); extern int bnad_enable_default_bcast(struct bnad *bnad); extern void bnad_restore_vlans(struct bnad *bnad, u32 rx_id); extern void bnad_set_ethtool_ops(struct net_device *netdev); /* Configuration & setup */ extern void bnad_tx_coalescing_timeo_set(struct bnad *bnad); extern void bnad_rx_coalescing_timeo_set(struct bnad *bnad); extern int bnad_setup_rx(struct bnad *bnad, u32 rx_id); extern int bnad_setup_tx(struct bnad *bnad, u32 tx_id); extern void bnad_cleanup_tx(struct bnad *bnad, u32 tx_id); extern void bnad_cleanup_rx(struct bnad *bnad, u32 rx_id); /* Timer start/stop protos */ extern void bnad_dim_timer_start(struct bnad *bnad); /* Statistics */ extern void bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats); extern void bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats); /** * MACROS */ /* To set & get the stats counters */ #define BNAD_UPDATE_CTR(_bnad, _ctr) \ (((_bnad)->stats.drv_stats._ctr)++) #define BNAD_GET_CTR(_bnad, _ctr) ((_bnad)->stats.drv_stats._ctr) #define bnad_enable_rx_irq_unsafe(_ccb) \ { \ if (likely(test_bit(BNAD_RXQ_STARTED, &(_ccb)->rcb[0]->flags))) {\ bna_ib_coalescing_timer_set((_ccb)->i_dbell, \ (_ccb)->rx_coalescing_timeo); \ bna_ib_ack((_ccb)->i_dbell, 0); \ } \ } #endif /* __BNAD_H__ */