| /* |
| * 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 <linux/rtnetlink.h> |
| #include <linux/workqueue.h> |
| #include <linux/ipv6.h> |
| #include <linux/etherdevice.h> |
| #include <linux/mutex.h> |
| #include <linux/firmware.h> |
| #include <linux/if_vlan.h> |
| |
| /* Fix for IA64 */ |
| #include <asm/checksum.h> |
| #include <net/ip6_checksum.h> |
| |
| #include <net/ip.h> |
| #include <net/tcp.h> |
| |
| #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 "3.0.2.2" |
| |
| #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 |
| #define BNAD_RXQ_POST_OK 2 |
| |
| /* 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__ */ |