linux/drivers/net/ethernet/emulex/benet/be_roce.h
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   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2005 - 2016 Broadcom
   4 * All rights reserved.
   5 *
   6 * Contact Information:
   7 * linux-drivers@emulex.com
   8 *
   9 * Emulex
  10 * 3333 Susan Street
  11 * Costa Mesa, CA 92626
  12 */
  13
  14#ifndef BE_ROCE_H
  15#define BE_ROCE_H
  16
  17#include <linux/pci.h>
  18#include <linux/netdevice.h>
  19
  20#define BE_ROCE_ABI_VERSION     1
  21
  22struct ocrdma_dev;
  23
  24enum be_interrupt_mode {
  25        BE_INTERRUPT_MODE_MSIX  = 0,
  26        BE_INTERRUPT_MODE_INTX  = 1,
  27        BE_INTERRUPT_MODE_MSI   = 2,
  28};
  29
  30#define MAX_MSIX_VECTORS                32
  31struct be_dev_info {
  32        u8 __iomem *db;
  33        u64 unmapped_db;
  34        u32 db_page_size;
  35        u32 db_total_size;
  36        u64 dpp_unmapped_addr;
  37        u32 dpp_unmapped_len;
  38        struct pci_dev *pdev;
  39        struct net_device *netdev;
  40        u8 mac_addr[ETH_ALEN];
  41        u32 dev_family;
  42        enum be_interrupt_mode intr_mode;
  43        struct {
  44                int num_vectors;
  45                int start_vector;
  46                u32 vector_list[MAX_MSIX_VECTORS];
  47        } msix;
  48};
  49
  50/* ocrdma driver register's the callback functions with nic driver. */
  51struct ocrdma_driver {
  52        unsigned char name[32];
  53        u32 be_abi_version;
  54        struct ocrdma_dev *(*add) (struct be_dev_info *dev_info);
  55        void (*remove) (struct ocrdma_dev *);
  56        void (*state_change_handler) (struct ocrdma_dev *, u32 new_state);
  57};
  58
  59enum be_roce_event {
  60        BE_DEV_SHUTDOWN = 2
  61};
  62
  63/* APIs for RoCE driver to register callback handlers,
  64 * which will be invoked when device is added, removed, ifup, ifdown
  65 */
  66int be_roce_register_driver(struct ocrdma_driver *drv);
  67void be_roce_unregister_driver(struct ocrdma_driver *drv);
  68
  69/* API for RoCE driver to issue mailbox commands */
  70int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
  71                    int wrb_payload_size, u16 *cmd_status, u16 *ext_status);
  72
  73#endif /* BE_ROCE_H */
  74