mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
a463696039
The CNIC driver controls BNX2 hardware rings and resources used by iSCSI. Most hardware resources for iSCSI are separate from those used for ethernet networking. iSCSI uses a separate MAC address and IP address. The CNIC driver creates a UIO interface to handle the non-offloaded packets such as ARP, etc in userspace. Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
300 lines
6.9 KiB
C
300 lines
6.9 KiB
C
/* cnic.h: Broadcom CNIC core network driver.
|
|
*
|
|
* Copyright (c) 2006-2009 Broadcom Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
|
|
#ifndef CNIC_H
|
|
#define CNIC_H
|
|
|
|
#define KWQ_PAGE_CNT 4
|
|
#define KCQ_PAGE_CNT 16
|
|
|
|
#define KWQ_CID 24
|
|
#define KCQ_CID 25
|
|
|
|
/*
|
|
* krnlq_context definition
|
|
*/
|
|
#define L5_KRNLQ_FLAGS 0x00000000
|
|
#define L5_KRNLQ_SIZE 0x00000000
|
|
#define L5_KRNLQ_TYPE 0x00000000
|
|
#define KRNLQ_FLAGS_PG_SZ (0xf<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_256 (0<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_512 (1<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_1K (2<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_2K (3<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_4K (4<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_8K (5<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_16K (6<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_32K (7<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_64K (8<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_128K (9<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_256K (10<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_512K (11<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_1M (12<<0)
|
|
#define KRNLQ_FLAGS_PG_SZ_2M (13<<0)
|
|
#define KRNLQ_FLAGS_QE_SELF_SEQ (1<<15)
|
|
#define KRNLQ_SIZE_TYPE_SIZE ((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
|
|
#define KRNLQ_TYPE_TYPE (0xf<<28)
|
|
#define KRNLQ_TYPE_TYPE_EMPTY (0<<28)
|
|
#define KRNLQ_TYPE_TYPE_KRNLQ (6<<28)
|
|
|
|
#define L5_KRNLQ_HOST_QIDX 0x00000004
|
|
#define L5_KRNLQ_HOST_FW_QIDX 0x00000008
|
|
#define L5_KRNLQ_NX_QE_SELF_SEQ 0x0000000c
|
|
#define L5_KRNLQ_QE_SELF_SEQ_MAX 0x0000000c
|
|
#define L5_KRNLQ_NX_QE_HADDR_HI 0x00000010
|
|
#define L5_KRNLQ_NX_QE_HADDR_LO 0x00000014
|
|
#define L5_KRNLQ_PGTBL_PGIDX 0x00000018
|
|
#define L5_KRNLQ_NX_PG_QIDX 0x00000018
|
|
#define L5_KRNLQ_PGTBL_NPAGES 0x0000001c
|
|
#define L5_KRNLQ_QIDX_INCR 0x0000001c
|
|
#define L5_KRNLQ_PGTBL_HADDR_HI 0x00000020
|
|
#define L5_KRNLQ_PGTBL_HADDR_LO 0x00000024
|
|
|
|
#define BNX2_PG_CTX_MAP 0x1a0034
|
|
#define BNX2_ISCSI_CTX_MAP 0x1a0074
|
|
|
|
struct cnic_redirect_entry {
|
|
struct dst_entry *old_dst;
|
|
struct dst_entry *new_dst;
|
|
};
|
|
|
|
#define MAX_COMPLETED_KCQE 64
|
|
|
|
#define MAX_CNIC_L5_CONTEXT 256
|
|
|
|
#define MAX_CM_SK_TBL_SZ MAX_CNIC_L5_CONTEXT
|
|
|
|
#define MAX_ISCSI_TBL_SZ 256
|
|
|
|
#define CNIC_LOCAL_PORT_MIN 60000
|
|
#define CNIC_LOCAL_PORT_MAX 61000
|
|
#define CNIC_LOCAL_PORT_RANGE (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
|
|
|
|
#define KWQE_CNT (BCM_PAGE_SIZE / sizeof(struct kwqe))
|
|
#define KCQE_CNT (BCM_PAGE_SIZE / sizeof(struct kcqe))
|
|
#define MAX_KWQE_CNT (KWQE_CNT - 1)
|
|
#define MAX_KCQE_CNT (KCQE_CNT - 1)
|
|
|
|
#define MAX_KWQ_IDX ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
|
|
#define MAX_KCQ_IDX ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
|
|
|
|
#define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BCM_PAGE_BITS - 5))
|
|
#define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
|
|
|
|
#define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BCM_PAGE_BITS - 5))
|
|
#define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
|
|
|
|
#define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) == \
|
|
(MAX_KCQE_CNT - 1)) ? \
|
|
(x) + 2 : (x) + 1
|
|
|
|
#define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
|
|
#define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
|
|
#define BNX2X_KWQ_DATA(cp, x) \
|
|
&(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
|
|
|
|
#define DEF_IPID_COUNT 0xc001
|
|
|
|
#define DEF_KA_TIMEOUT 10000
|
|
#define DEF_KA_INTERVAL 300000
|
|
#define DEF_KA_MAX_PROBE_COUNT 3
|
|
#define DEF_TOS 0
|
|
#define DEF_TTL 0xfe
|
|
#define DEF_SND_SEQ_SCALE 0
|
|
#define DEF_RCV_BUF 0xffff
|
|
#define DEF_SND_BUF 0xffff
|
|
#define DEF_SEED 0
|
|
#define DEF_MAX_RT_TIME 500
|
|
#define DEF_MAX_DA_COUNT 2
|
|
#define DEF_SWS_TIMER 1000
|
|
#define DEF_MAX_CWND 0xffff
|
|
|
|
struct cnic_ctx {
|
|
u32 cid;
|
|
void *ctx;
|
|
dma_addr_t mapping;
|
|
};
|
|
|
|
#define BNX2_MAX_CID 0x2000
|
|
|
|
struct cnic_dma {
|
|
int num_pages;
|
|
void **pg_arr;
|
|
dma_addr_t *pg_map_arr;
|
|
int pgtbl_size;
|
|
u32 *pgtbl;
|
|
dma_addr_t pgtbl_map;
|
|
};
|
|
|
|
struct cnic_id_tbl {
|
|
spinlock_t lock;
|
|
u32 start;
|
|
u32 max;
|
|
u32 next;
|
|
unsigned long *table;
|
|
};
|
|
|
|
#define CNIC_KWQ16_DATA_SIZE 128
|
|
|
|
struct kwqe_16_data {
|
|
u8 data[CNIC_KWQ16_DATA_SIZE];
|
|
};
|
|
|
|
struct cnic_iscsi {
|
|
struct cnic_dma task_array_info;
|
|
struct cnic_dma r2tq_info;
|
|
struct cnic_dma hq_info;
|
|
};
|
|
|
|
struct cnic_context {
|
|
u32 cid;
|
|
struct kwqe_16_data *kwqe_data;
|
|
dma_addr_t kwqe_data_mapping;
|
|
wait_queue_head_t waitq;
|
|
int wait_cond;
|
|
unsigned long timestamp;
|
|
u32 ctx_flags;
|
|
#define CTX_FL_OFFLD_START 0x00000001
|
|
u8 ulp_proto_id;
|
|
union {
|
|
struct cnic_iscsi *iscsi;
|
|
} proto;
|
|
};
|
|
|
|
struct cnic_local {
|
|
|
|
spinlock_t cnic_ulp_lock;
|
|
void *ulp_handle[MAX_CNIC_ULP_TYPE];
|
|
unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
|
|
#define ULP_F_INIT 0
|
|
#define ULP_F_START 1
|
|
struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE];
|
|
|
|
/* protected by ulp_lock */
|
|
u32 cnic_local_flags;
|
|
#define CNIC_LCL_FL_KWQ_INIT 0x00000001
|
|
|
|
struct cnic_dev *dev;
|
|
|
|
struct cnic_eth_dev *ethdev;
|
|
|
|
void *l2_ring;
|
|
dma_addr_t l2_ring_map;
|
|
int l2_ring_size;
|
|
int l2_rx_ring_size;
|
|
|
|
void *l2_buf;
|
|
dma_addr_t l2_buf_map;
|
|
int l2_buf_size;
|
|
int l2_single_buf_size;
|
|
|
|
u16 *rx_cons_ptr;
|
|
u16 *tx_cons_ptr;
|
|
u16 rx_cons;
|
|
u16 tx_cons;
|
|
|
|
u32 kwq_cid_addr;
|
|
u32 kcq_cid_addr;
|
|
|
|
struct cnic_dma kwq_info;
|
|
struct kwqe **kwq;
|
|
|
|
struct cnic_dma kwq_16_data_info;
|
|
|
|
u16 max_kwq_idx;
|
|
|
|
u16 kwq_prod_idx;
|
|
u32 kwq_io_addr;
|
|
|
|
u16 *kwq_con_idx_ptr;
|
|
u16 kwq_con_idx;
|
|
|
|
struct cnic_dma kcq_info;
|
|
struct kcqe **kcq;
|
|
|
|
u16 kcq_prod_idx;
|
|
u32 kcq_io_addr;
|
|
|
|
void *status_blk;
|
|
struct status_block_msix *bnx2_status_blk;
|
|
struct host_status_block *bnx2x_status_blk;
|
|
|
|
u32 status_blk_num;
|
|
u32 int_num;
|
|
u32 last_status_idx;
|
|
struct tasklet_struct cnic_irq_task;
|
|
|
|
struct kcqe *completed_kcq[MAX_COMPLETED_KCQE];
|
|
|
|
struct cnic_sock *csk_tbl;
|
|
struct cnic_id_tbl csk_port_tbl;
|
|
|
|
struct cnic_dma conn_buf_info;
|
|
struct cnic_dma gbl_buf_info;
|
|
|
|
struct cnic_iscsi *iscsi_tbl;
|
|
struct cnic_context *ctx_tbl;
|
|
struct cnic_id_tbl cid_tbl;
|
|
int max_iscsi_conn;
|
|
atomic_t iscsi_conn;
|
|
|
|
/* per connection parameters */
|
|
int num_iscsi_tasks;
|
|
int num_ccells;
|
|
int task_array_size;
|
|
int r2tq_size;
|
|
int hq_size;
|
|
int num_cqs;
|
|
|
|
struct cnic_ctx *ctx_arr;
|
|
int ctx_blks;
|
|
int ctx_blk_size;
|
|
int cids_per_blk;
|
|
|
|
u32 chip_id;
|
|
int func;
|
|
u32 shmem_base;
|
|
|
|
u32 uio_dev;
|
|
struct uio_info *cnic_uinfo;
|
|
|
|
struct cnic_ops *cnic_ops;
|
|
int (*start_hw)(struct cnic_dev *);
|
|
void (*stop_hw)(struct cnic_dev *);
|
|
void (*setup_pgtbl)(struct cnic_dev *,
|
|
struct cnic_dma *);
|
|
int (*alloc_resc)(struct cnic_dev *);
|
|
void (*free_resc)(struct cnic_dev *);
|
|
int (*start_cm)(struct cnic_dev *);
|
|
void (*stop_cm)(struct cnic_dev *);
|
|
void (*enable_int)(struct cnic_dev *);
|
|
void (*disable_int_sync)(struct cnic_dev *);
|
|
void (*ack_int)(struct cnic_dev *);
|
|
void (*close_conn)(struct cnic_sock *, u32 opcode);
|
|
u16 (*next_idx)(u16);
|
|
u16 (*hw_idx)(u16);
|
|
};
|
|
|
|
struct bnx2x_bd_chain_next {
|
|
u32 addr_lo;
|
|
u32 addr_hi;
|
|
u8 reserved[8];
|
|
};
|
|
|
|
#define ISCSI_RAMROD_CMD_ID_UPDATE_CONN (ISCSI_KCQE_OPCODE_UPDATE_CONN)
|
|
#define ISCSI_RAMROD_CMD_ID_INIT (ISCSI_KCQE_OPCODE_INIT)
|
|
|
|
#define CDU_REGION_NUMBER_XCM_AG 2
|
|
#define CDU_REGION_NUMBER_UCM_AG 4
|
|
|
|
#endif
|
|
|