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>
  8struct 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
 25struct 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
 37struct 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)
 59struct 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
 65struct 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 */
118struct 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
148const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
149void qed_put_fcoe_ops(void);
150#endif