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linux/drivers/net/ethernet/brocade/bna/bnad.h

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/*
* 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 "3.2.23.0"
#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_MIN_Q_DEPTH 512
#define BNAD_MAX_RXQ_DEPTH 16384
#define BNAD_MAX_TXQ_DEPTH 2048
#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_STARTED 0
#define BNAD_RXQ_POST_OK 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)
#define BNAD_FRAME_SIZE(_mtu) \
(ETH_HLEN + VLAN_HLEN + (_mtu) + ETH_FCS_LEN)
/*
* 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_iocmd_comp {
struct bnad *bnad;
struct completion comp;
int comp_status;
};
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;
struct delayed_work tx_cleanup_work;
} ____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;
struct work_struct rx_cleanup_work;
} ____cacheline_aligned;
struct bnad_tx_vector {
DEFINE_DMA_UNMAP_ADDR(dma_addr);
DEFINE_DMA_UNMAP_LEN(dma_len);
};
struct bnad_tx_unmap {
struct sk_buff *skb;
u32 nvecs;
struct bnad_tx_vector vectors[BFI_TX_MAX_VECTORS_PER_WI];
};
struct bnad_rx_vector {
DEFINE_DMA_UNMAP_ADDR(dma_addr);
u32 len;
};
struct bnad_rx_unmap {
struct page *page;
struct sk_buff *skb;
struct bnad_rx_vector vector;
u32 page_offset;
};
enum bnad_rxbuf_type {
BNAD_RXBUF_NONE = 0,
BNAD_RXBUF_SK_BUFF = 1,
BNAD_RXBUF_PAGE = 2,
BNAD_RXBUF_MULTI_BUFF = 3
};
#define BNAD_RXBUF_IS_SK_BUFF(_type) ((_type) == BNAD_RXBUF_SK_BUFF)
#define BNAD_RXBUF_IS_MULTI_BUFF(_type) ((_type) == BNAD_RXBUF_MULTI_BUFF)
struct bnad_rx_unmap_q {
int reuse_pi;
int alloc_order;
u32 map_size;
enum bnad_rxbuf_type type;
struct bnad_rx_unmap unmap[0] ____cacheline_aligned;
};
#define BNAD_PCI_DEV_IS_CAT2(_bnad) \
((_bnad)->pcidev->device == BFA_PCI_DEVICE_ID_CT2)
/* 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_DEFAULT 0x08
#define BNAD_CF_MSIX 0x10 /* 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
struct bnad {
struct net_device *netdev;
u32 id;
struct list_head list_entry;
/* 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] ____cacheline_aligned;
struct bna_tx_config tx_config[BNAD_MAX_TX] ____cacheline_aligned;
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 workqueue_struct *work_q;
/* 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];
char wq_name[BNAD_NAME_LEN];
/* debugfs specific data */
char *regdata;
u32 reglen;
struct dentry *bnad_dentry_files[5];
struct dentry *port_debugfs_root;
};
struct bnad_drvinfo {
struct bfa_ioc_attr ioc_attr;
struct bfa_cee_attr cee_attr;
struct bfa_flash_attr flash_attr;
u32 cee_status;
u32 flash_status;
};
/*
* EXTERN VARIABLES
*/
extern const struct firmware *bfi_fw;
/*
* EXTERN PROTOTYPES
*/
u32 *cna_get_firmware_buf(struct pci_dev *pdev);
/* Netdev entry point prototypes */
void bnad_set_rx_mode(struct net_device *netdev);
struct net_device_stats *bnad_get_netdev_stats(struct net_device *netdev);
int bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr);
int bnad_enable_default_bcast(struct bnad *bnad);
void bnad_restore_vlans(struct bnad *bnad, u32 rx_id);
void bnad_set_ethtool_ops(struct net_device *netdev);
void bnad_cb_completion(void *arg, enum bfa_status status);
/* Configuration & setup */
void bnad_tx_coalescing_timeo_set(struct bnad *bnad);
void bnad_rx_coalescing_timeo_set(struct bnad *bnad);
int bnad_setup_rx(struct bnad *bnad, u32 rx_id);
int bnad_setup_tx(struct bnad *bnad, u32 tx_id);
void bnad_destroy_tx(struct bnad *bnad, u32 tx_id);
void bnad_destroy_rx(struct bnad *bnad, u32 rx_id);
/* Timer start/stop protos */
void bnad_dim_timer_start(struct bnad *bnad);
/* Statistics */
void bnad_netdev_qstats_fill(struct bnad *bnad,
struct rtnl_link_stats64 *stats);
void bnad_netdev_hwstats_fill(struct bnad *bnad,
struct rtnl_link_stats64 *stats);
/* Debugfs */
void bnad_debugfs_init(struct bnad *bnad);
void bnad_debugfs_uninit(struct bnad *bnad);
/* 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__ */
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