340 lines
7.7 KiB
C
340 lines
7.7 KiB
C
/*
|
|
* 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>
|
|
|
|
/* 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_TXS 1
|
|
#define BNAD_MAX_TXQ_PER_TX 8 /* 8 priority queues */
|
|
#define BNAD_TXQ_NUM 1
|
|
|
|
#define BNAD_MAX_RXS 1
|
|
#define BNAD_MAX_RXPS_PER_RX 16
|
|
|
|
/*
|
|
* 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;
|
|
unsigned long flags;
|
|
struct napi_struct napi;
|
|
};
|
|
|
|
#define BNAD_RXMODE_PROMISC_DEFAULT BNA_RXMODE_PROMISC
|
|
|
|
#define BNAD_GET_TX_ID(_skb) (0)
|
|
|
|
/*
|
|
* GLOBAL #defines (CONSTANTS)
|
|
*/
|
|
#define BNAD_NAME "bna"
|
|
#define BNAD_NAME_LEN 64
|
|
|
|
#define BNAD_VERSION "2.3.2.3"
|
|
|
|
#define BNAD_MAILBOX_MSIX_VECTORS 1
|
|
|
|
#define BNAD_STATS_TIMER_FREQ 1000 /* in msecs */
|
|
#define BNAD_DIM_TIMER_FREQ 1000 /* in msecs */
|
|
|
|
#define BNAD_MAX_Q_DEPTH 0x10000
|
|
#define BNAD_MIN_Q_DEPTH 0x200
|
|
|
|
#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
|
|
|
|
/*
|
|
* 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 port_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;
|
|
};
|
|
|
|
/* 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 csum_help_err;
|
|
|
|
u64 hw_stats_updates;
|
|
u64 netif_rx_schedule;
|
|
u64 netif_rx_complete;
|
|
u64 netif_rx_dropped;
|
|
|
|
u64 link_toggle;
|
|
u64 cee_up;
|
|
|
|
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];
|
|
} ____cacheline_aligned;
|
|
|
|
struct bnad_rx_info {
|
|
struct bna_rx *rx; /* 1:1 between rx_info & rx */
|
|
|
|
struct bnad_rx_ctrl rx_ctrl[BNAD_MAX_RXPS_PER_RX];
|
|
} ____cacheline_aligned;
|
|
|
|
/* Unmap queues for Tx / Rx cleanup */
|
|
struct bnad_skb_unmap {
|
|
struct sk_buff *skb;
|
|
DECLARE_PCI_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 1
|
|
#define BNAD_RF_MBOX_IRQ_DISABLED 2
|
|
#define BNAD_RF_RX_STARTED 3
|
|
#define BNAD_RF_DIM_TIMER_RUNNING 4
|
|
#define BNAD_RF_STATS_TIMER_RUNNING 5
|
|
#define BNAD_RF_TX_SHUTDOWN_DELAYED 6
|
|
#define BNAD_RF_RX_SHUTDOWN_DELAYED 7
|
|
|
|
struct bnad {
|
|
struct net_device *netdev;
|
|
|
|
/* Data path */
|
|
struct bnad_tx_info tx_info[BNAD_MAX_TXS];
|
|
struct bnad_rx_info rx_info[BNAD_MAX_RXS];
|
|
|
|
struct vlan_group *vlan_grp;
|
|
/*
|
|
* 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_RXS];
|
|
struct bna_tx_config tx_config[BNAD_MAX_TXS];
|
|
|
|
u32 rx_csum;
|
|
|
|
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 bnad_tx_res_info tx_res_info[BNAD_MAX_TXS];
|
|
struct bnad_rx_res_info rx_res_info[BNAD_MAX_RXS];
|
|
|
|
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_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, uint rx_id);
|
|
extern int bnad_setup_tx(struct bnad *bnad, uint tx_id);
|
|
extern void bnad_cleanup_tx(struct bnad *bnad, uint tx_id);
|
|
extern void bnad_cleanup_rx(struct bnad *bnad, uint 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); \
|
|
} \
|
|
}
|
|
|
|
#define bnad_dim_timer_running(_bnad) \
|
|
(((_bnad)->cfg_flags & BNAD_CF_DIM_ENABLED) && \
|
|
(test_bit(BNAD_RF_DIM_TIMER_RUNNING, &((_bnad)->run_flags))))
|
|
|
|
#endif /* __BNAD_H__ */
|