LXR linux/drivers/net/ethernet/qlogic/qed/qed

   1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
   2/* Copyright 2021 Marvell. All rights reserved. */
   3
   4#ifndef _QED_NVMETCP_H
   5#define _QED_NVMETCP_H
   6
   7#include <linux/types.h>
   8#include <linux/list.h>
   9#include <linux/slab.h>
  10#include <linux/spinlock.h>
  11#include <linux/qed/tcp_common.h>
  12#include <linux/qed/qed_nvmetcp_if.h>
  13#include <linux/qed/qed_chain.h>
  14#include "qed.h"
  15#include "qed_hsi.h"
  16#include "qed_mcp.h"
  17#include "qed_sp.h"
  18
  19#define QED_NVMETCP_FW_CQ_SIZE (4 * 1024)
  20
  21/* tcp parameters */
  22#define QED_TCP_FLOW_LABEL 0
  23#define QED_TCP_TWO_MSL_TIMER 4000
  24#define QED_TCP_HALF_WAY_CLOSE_TIMEOUT 10
  25#define QED_TCP_MAX_FIN_RT 2
  26#define QED_TCP_SWS_TIMER 5000
  27
  28struct qed_nvmetcp_info {
  29        spinlock_t lock; /* Connection resources. */
  30        struct list_head free_list;
  31        u16 max_num_outstanding_tasks;
  32        void *event_context;
  33        nvmetcp_event_cb_t event_cb;
  34};
  35
  36struct qed_hash_nvmetcp_con {
  37        struct hlist_node node;
  38        struct qed_nvmetcp_conn *con;
  39};
  40
  41struct qed_nvmetcp_conn {
  42        struct list_head list_entry;
  43        bool free_on_delete;
  44        u16 conn_id;
  45        u32 icid;
  46        u32 fw_cid;
  47        u8 layer_code;
  48        u8 offl_flags;
  49        u8 connect_mode;
  50        dma_addr_t sq_pbl_addr;
  51        struct qed_chain r2tq;
  52        struct qed_chain xhq;
  53        struct qed_chain uhq;
  54        u8 local_mac[6];
  55        u8 remote_mac[6];
  56        u8 ip_version;
  57        u8 ka_max_probe_cnt;
  58        u16 vlan_id;
  59        u16 tcp_flags;
  60        u32 remote_ip[4];
  61        u32 local_ip[4];
  62        u32 flow_label;
  63        u32 ka_timeout;
  64        u32 ka_interval;
  65        u32 max_rt_time;
  66        u8 ttl;
  67        u8 tos_or_tc;
  68        u16 remote_port;
  69        u16 local_port;
  70        u16 mss;
  71        u8 rcv_wnd_scale;
  72        u32 rcv_wnd;
  73        u32 cwnd;
  74        u8 update_flag;
  75        u8 default_cq;
  76        u8 abortive_dsconnect;
  77        u32 max_seq_size;
  78        u32 max_recv_pdu_length;
  79        u32 max_send_pdu_length;
  80        u32 first_seq_length;
  81        u16 physical_q0;
  82        u16 physical_q1;
  83        u16 nvmetcp_cccid_max_range;
  84        dma_addr_t nvmetcp_cccid_itid_table_addr;
  85};
  86
  87#if IS_ENABLED(CONFIG_QED_NVMETCP)
  88int qed_nvmetcp_alloc(struct qed_hwfn *p_hwfn);
  89void qed_nvmetcp_setup(struct qed_hwfn *p_hwfn);
  90void qed_nvmetcp_free(struct qed_hwfn *p_hwfn);
  91
  92#else /* IS_ENABLED(CONFIG_QED_NVMETCP) */
  93static inline int qed_nvmetcp_alloc(struct qed_hwfn *p_hwfn)
  94{
  95        return -EINVAL;
  96}
  97
  98static inline void qed_nvmetcp_setup(struct qed_hwfn *p_hwfn) {}
  99static inline void qed_nvmetcp_free(struct qed_hwfn *p_hwfn) {}
 100
 101#endif /* IS_ENABLED(CONFIG_QED_NVMETCP) */
 102
 103#endif
 104