Linux 4.16.11

[linux/fpc-iii.git] / drivers / net / ethernet / broadcom / cnic.h

/* cnic.h: QLogic CNIC core network driver.
 *
 * Copyright (c) 2006-2014 Broadcom Corporation
 * Copyright (c) 2014 QLogic 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 HC_INDEX_ISCSI_EQ_CONS                  6

#define HC_INDEX_FCOE_EQ_CONS                   3

#define HC_SP_INDEX_ETH_ISCSI_CQ_CONS           5
#define HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS        1

#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

#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     61024
#define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)

#define KWQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kwqe))
#define KCQE_CNT (BNX2_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) >> (BNX2_PAGE_BITS - 5))
#define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)

#define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BNX2_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_START          0x8000

#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;
        unsigned long           ctx_flags;
#define CTX_FL_OFFLD_START      0
#define CTX_FL_DELETE_WAIT      1
#define CTX_FL_CID_ERROR        2
        u8                      ulp_proto_id;
        union {
                struct cnic_iscsi       *iscsi;
        } proto;
};

struct kcq_info {
        struct cnic_dma dma;
        struct kcqe     **kcq;

        u16             *hw_prod_idx_ptr;
        u16             sw_prod_idx;
        u16             *status_idx_ptr;
        u32             io_addr;

        u16             (*next_idx)(u16);
        u16             (*hw_idx)(u16);
};

#define UIO_USE_TX_DOORBELL 0x017855DB

struct cnic_uio_dev {
        struct uio_info         cnic_uinfo;
        u32                     uio_dev;

        int                     l2_ring_size;
        void                    *l2_ring;
        dma_addr_t              l2_ring_map;

        int                     l2_buf_size;
        void                    *l2_buf;
        dma_addr_t              l2_buf_map;

        struct cnic_dev         *dev;
        struct pci_dev          *pdev;
        struct list_head        list;
};

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
#define ULP_F_CALL_PENDING      2
        struct cnic_ulp_ops __rcu *ulp_ops[MAX_CNIC_ULP_TYPE];

        unsigned long cnic_local_flags;
#define CNIC_LCL_FL_KWQ_INIT            0x0
#define CNIC_LCL_FL_L2_WAIT             0x1
#define CNIC_LCL_FL_RINGS_INITED        0x2
#define CNIC_LCL_FL_STOP_ISCSI          0x4

        struct cnic_dev *dev;

        struct cnic_eth_dev *ethdev;

        struct cnic_uio_dev *udev;

        int             l2_rx_ring_size;
        int             l2_single_buf_size;

        u16             *rx_cons_ptr;
        u16             *tx_cons_ptr;
        u16             rx_cons;
        u16             tx_cons;

        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 kcq_info kcq1;
        struct kcq_info kcq2;

        union {
                void                            *gen;
                struct status_block_msix        *bnx2;
                struct host_hc_status_block_e1x *bnx2x_e1x;
                /* index values - which counter to update */
                #define SM_RX_ID                0
                #define SM_TX_ID                1
        } status_blk;

        struct host_sp_status_block     *bnx2x_def_status_blk;

        u32                             status_blk_num;
        u32                             bnx2x_igu_sb_id;
        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         gbl_buf_info;

        struct cnic_iscsi       *iscsi_tbl;
        struct cnic_context     *ctx_tbl;
        struct cnic_id_tbl      cid_tbl;
        atomic_t                iscsi_conn;
        u32                     iscsi_start_cid;

        u32                     fcoe_init_cid;
        u32                     fcoe_start_cid;
        struct cnic_id_tbl      fcoe_cid_tbl;

        u32                     max_cid_space;

        /* per connection parameters */
        int                     num_iscsi_tasks;
        int                     num_ccells;
        int                     task_array_size;
        int                     r2tq_size;
        int                     hq_size;
        int                     num_cqs;

        struct delayed_work     delete_task;

        struct cnic_ctx         *ctx_arr;
        int                     ctx_blks;
        int                     ctx_blk_size;
        unsigned long           ctx_align;
        int                     cids_per_blk;

        u32                     chip_id;
        int                     func;

        u32                     shmem_base;

        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                    (*arm_int)(struct cnic_dev *, u32 index);
        void                    (*close_conn)(struct cnic_sock *, u32 opcode);
};

struct bnx2x_bd_chain_next {
        u32     addr_lo;
        u32     addr_hi;
        u8      reserved[8];
};

#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T       (1)

#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

#define CDU_VALID_DATA(_cid, _region, _type)    \
        (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))

#define CDU_CRC8(_cid, _region, _type)  \
        (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))

#define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type)    \
        (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))

#define BNX2X_CONTEXT_MEM_SIZE          1024
#define BNX2X_FCOE_CID                  16

#define BNX2X_ISCSI_START_CID           18
#define BNX2X_ISCSI_NUM_CONNECTIONS     128
#define BNX2X_ISCSI_TASK_CONTEXT_SIZE   128
#define BNX2X_ISCSI_MAX_PENDING_R2TS    4
#define BNX2X_ISCSI_R2TQE_SIZE          8
#define BNX2X_ISCSI_HQ_BD_SIZE          64
#define BNX2X_ISCSI_GLB_BUF_SIZE        64
#define BNX2X_ISCSI_PBL_NOT_CACHED      0xff
#define BNX2X_ISCSI_PDU_HEADER_NOT_CACHED       0xff

#define BNX2X_FCOE_NUM_CONNECTIONS      1024

#define BNX2X_FCOE_L5_CID_BASE          MAX_ISCSI_TBL_SZ

#define BNX2X_CHIP_IS_E2_PLUS(bp) (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))

#define BNX2X_RX_DESC_CNT               (BNX2_PAGE_SIZE / \
                                         sizeof(struct eth_rx_bd))
#define BNX2X_MAX_RX_DESC_CNT           (BNX2X_RX_DESC_CNT - 2)
#define BNX2X_RCQ_DESC_CNT              (BNX2_PAGE_SIZE / \
                                         sizeof(union eth_rx_cqe))
#define BNX2X_MAX_RCQ_DESC_CNT          (BNX2X_RCQ_DESC_CNT - 1)

#define BNX2X_NEXT_RCQE(x) (((x) & BNX2X_MAX_RCQ_DESC_CNT) ==           \
                (BNX2X_MAX_RCQ_DESC_CNT - 1)) ?                         \
                ((x) + 2) : ((x) + 1)

#define BNX2X_DEF_SB_ID                 HC_SP_SB_ID

#define BNX2X_SHMEM_MF_BLK_OFFSET       0x7e4

#define BNX2X_SHMEM_ADDR(base, field)   (base + \
                                         offsetof(struct shmem_region, field))

#define BNX2X_SHMEM2_ADDR(base, field)  (base + \
                                         offsetof(struct shmem2_region, field))

#define BNX2X_SHMEM2_HAS(base, field)                           \
                ((base) &&                                      \
                 (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
                  offsetof(struct shmem2_region, field)))

#define BNX2X_MF_CFG_ADDR(base, field)                          \
                        ((base) + offsetof(struct mf_cfg, field))

#ifndef ETH_MAX_RX_CLIENTS_E2
#define ETH_MAX_RX_CLIENTS_E2           ETH_MAX_RX_CLIENTS_E1H
#endif

#define CNIC_FUNC(cp)                   ((cp)->func)

#define BNX2X_HW_CID(bp, x)             ((BP_PORT(bp) << 23) | \
                                         (BP_VN(bp) << 17) | (x))

#define BNX2X_SW_CID(x)                 (x & 0x1ffff)

#define BNX2X_CL_QZONE_ID(bp, cli)                                      \
                (BNX2X_CHIP_IS_E2_PLUS(bp) ? cli :                      \
                 cli + (BP_PORT(bp) * ETH_MAX_RX_CLIENTS_E1H))

#ifndef MAX_STAT_COUNTER_ID
#define MAX_STAT_COUNTER_ID                                             \
        (CHIP_IS_E1H(bp) ? MAX_STAT_COUNTER_ID_E1H :                    \
         ((BNX2X_CHIP_IS_E2_PLUS(bp)) ? MAX_STAT_COUNTER_ID_E2 :        \
          MAX_STAT_COUNTER_ID_E1))
#endif

#define CNIC_SUPPORTS_FCOE(cp)                                          \
        (BNX2X_CHIP_IS_E2_PLUS(bp) && !NO_FCOE(bp))

#define CNIC_RAMROD_TMO                 (HZ / 4)

#endif