include/linux/qed/qed_fcoe_if.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
   2 /* Copyright (c) 2019-2020 Marvell International Ltd. */
   3
   4 #ifndef _QED_FCOE_IF_H
   5 #define _QED_FCOE_IF_H
   6 #include <linux/types.h>
   7 #include <linux/qed/qed_if.h>
   8 struct qed_fcoe_stats {
   9         u64 fcoe_rx_byte_cnt;
  10         u64 fcoe_rx_data_pkt_cnt;
  11         u64 fcoe_rx_xfer_pkt_cnt;
  12         u64 fcoe_rx_other_pkt_cnt;
  13         u32 fcoe_silent_drop_pkt_cmdq_full_cnt;
  14         u32 fcoe_silent_drop_pkt_rq_full_cnt;
  15         u32 fcoe_silent_drop_pkt_crc_error_cnt;
  16         u32 fcoe_silent_drop_pkt_task_invalid_cnt;
  17         u32 fcoe_silent_drop_total_pkt_cnt;
  18
  19         u64 fcoe_tx_byte_cnt;
  20         u64 fcoe_tx_data_pkt_cnt;
  21         u64 fcoe_tx_xfer_pkt_cnt;
  22         u64 fcoe_tx_other_pkt_cnt;
  23 };
  24
  25 struct qed_dev_fcoe_info {
  26         struct qed_dev_info common;
  27
  28         void __iomem *primary_dbq_rq_addr;
  29         void __iomem *secondary_bdq_rq_addr;
  30
  31         u64 wwpn;
  32         u64 wwnn;
  33
  34         u8 num_cqs;
  35 };
  36
  37 struct qed_fcoe_params_offload {
  38         dma_addr_t sq_pbl_addr;
  39         dma_addr_t sq_curr_page_addr;
  40         dma_addr_t sq_next_page_addr;
  41
  42         u8 src_mac[ETH_ALEN];
  43         u8 dst_mac[ETH_ALEN];
  44
  45         u16 tx_max_fc_pay_len;
  46         u16 e_d_tov_timer_val;
  47         u16 rec_tov_timer_val;
  48         u16 rx_max_fc_pay_len;
  49         u16 vlan_tag;
  50
  51         struct fc_addr_nw s_id;
  52         u8 max_conc_seqs_c3;
  53         struct fc_addr_nw d_id;
  54         u8 flags;
  55         u8 def_q_idx;
  56 };
  57
  58 #define MAX_TID_BLOCKS_FCOE (512)
  59 struct qed_fcoe_tid {
  60         u32 size;               /* In bytes per task */
  61         u32 num_tids_per_block;
  62         u8 *blocks[MAX_TID_BLOCKS_FCOE];
  63 };
  64
  65 struct qed_fcoe_cb_ops {
  66         struct qed_common_cb_ops common;
  67          u32 (*get_login_failures)(void *cookie);
  68 };
  69
  70 /**
  71  * struct qed_fcoe_ops - qed FCoE operations.
  72  * @common:             common operations pointer
  73  * @fill_dev_info:      fills FCoE specific information
  74  *                      @param cdev
  75  *                      @param info
  76  *                      @return 0 on success, otherwise error value.
  77  * @register_ops:       register FCoE operations
  78  *                      @param cdev
  79  *                      @param ops - specified using qed_iscsi_cb_ops
  80  *                      @param cookie - driver private
  81  * @ll2:                light L2 operations pointer
  82  * @start:              fcoe in FW
  83  *                      @param cdev
  84  *                      @param tasks - qed will fill information about tasks
  85  *                      return 0 on success, otherwise error value.
  86  * @stop:               stops fcoe in FW
  87  *                      @param cdev
  88  *                      return 0 on success, otherwise error value.
  89  * @acquire_conn:       acquire a new fcoe connection
  90  *                      @param cdev
  91  *                      @param handle - qed will fill handle that should be
  92  *                              used henceforth as identifier of the
  93  *                              connection.
  94  *                      @param p_doorbell - qed will fill the address of the
  95  *                              doorbell.
  96  *                      return 0 on success, otherwise error value.
  97  * @release_conn:       release a previously acquired fcoe connection
  98  *                      @param cdev
  99  *                      @param handle - the connection handle.
 100  *                      return 0 on success, otherwise error value.
 101  * @offload_conn:       configures an offloaded connection
 102  *                      @param cdev
 103  *                      @param handle - the connection handle.
 104  *                      @param conn_info - the configuration to use for the
 105  *                              offload.
 106  *                      return 0 on success, otherwise error value.
 107  * @destroy_conn:       stops an offloaded connection
 108  *                      @param cdev
 109  *                      @param handle - the connection handle.
 110  *                      @param terminate_params
 111  *                      return 0 on success, otherwise error value.
 112  * @get_stats:          gets FCoE related statistics
 113  *                      @param cdev
 114  *                      @param stats - pointer to struck that would be filled
 115  *                              we stats
 116  *                      return 0 on success, error otherwise.
 117  */
 118 struct qed_fcoe_ops {
 119         const struct qed_common_ops *common;
 120
 121         int (*fill_dev_info)(struct qed_dev *cdev,
 122                              struct qed_dev_fcoe_info *info);
 123
 124         void (*register_ops)(struct qed_dev *cdev,
 125                              struct qed_fcoe_cb_ops *ops, void *cookie);
 126
 127         const struct qed_ll2_ops *ll2;
 128
 129         int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);
 130
 131         int (*stop)(struct qed_dev *cdev);
 132
 133         int (*acquire_conn)(struct qed_dev *cdev,
 134                             u32 *handle,
 135                             u32 *fw_cid, void __iomem **p_doorbell);
 136
 137         int (*release_conn)(struct qed_dev *cdev, u32 handle);
 138
 139         int (*offload_conn)(struct qed_dev *cdev,
 140                             u32 handle,
 141                             struct qed_fcoe_params_offload *conn_info);
 142         int (*destroy_conn)(struct qed_dev *cdev,
 143                             u32 handle, dma_addr_t terminate_params);
 144
 145         int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
 146 };
 147
 148 const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
 149 void qed_put_fcoe_ops(void);
 150 #endif