drivers/net/ethernet/emulex/benet/be_roce.h

   1 /*
   2  * Copyright (C) 2005 - 2016 Broadcom
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation. The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@emulex.com
  12  *
  13  * Emulex
  14  * 3333 Susan Street
  15  * Costa Mesa, CA 92626
  16  */
  17
  18 #ifndef BE_ROCE_H
  19 #define BE_ROCE_H
  20
  21 #include <linux/pci.h>
  22 #include <linux/netdevice.h>
  23
  24 #define BE_ROCE_ABI_VERSION     1
  25
  26 struct ocrdma_dev;
  27
  28 enum be_interrupt_mode {
  29         BE_INTERRUPT_MODE_MSIX  = 0,
  30         BE_INTERRUPT_MODE_INTX  = 1,
  31         BE_INTERRUPT_MODE_MSI   = 2,
  32 };
  33
  34 #define MAX_MSIX_VECTORS                32
  35 struct be_dev_info {
  36         u8 __iomem *db;
  37         u64 unmapped_db;
  38         u32 db_page_size;
  39         u32 db_total_size;
  40         u64 dpp_unmapped_addr;
  41         u32 dpp_unmapped_len;
  42         struct pci_dev *pdev;
  43         struct net_device *netdev;
  44         u8 mac_addr[ETH_ALEN];
  45         u32 dev_family;
  46         enum be_interrupt_mode intr_mode;
  47         struct {
  48                 int num_vectors;
  49                 int start_vector;
  50                 u32 vector_list[MAX_MSIX_VECTORS];
  51         } msix;
  52 };
  53
  54 /* ocrdma driver register's the callback functions with nic driver. */
  55 struct ocrdma_driver {
  56         unsigned char name[32];
  57         u32 be_abi_version;
  58         struct ocrdma_dev *(*add) (struct be_dev_info *dev_info);
  59         void (*remove) (struct ocrdma_dev *);
  60         void (*state_change_handler) (struct ocrdma_dev *, u32 new_state);
  61 };
  62
  63 enum be_roce_event {
  64         BE_DEV_SHUTDOWN = 2
  65 };
  66
  67 /* APIs for RoCE driver to register callback handlers,
  68  * which will be invoked when device is added, removed, ifup, ifdown
  69  */
  70 int be_roce_register_driver(struct ocrdma_driver *drv);
  71 void be_roce_unregister_driver(struct ocrdma_driver *drv);
  72
  73 /* API for RoCE driver to issue mailbox commands */
  74 int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
  75                     int wrb_payload_size, u16 *cmd_status, u16 *ext_status);
  76
  77 #endif /* BE_ROCE_H */