LXR linux/drivers/net/ethernet/brocade/bna/cna

   1/*
   2 * Linux network driver for Brocade Converged Network Adapter.
   3 *
   4 * This program is free software; you can redistribute it and/or modify it
   5 * under the terms of the GNU General Public License (GPL) Version 2 as
   6 * published by the Free Software Foundation
   7 *
   8 * This program is distributed in the hope that it will be useful, but
   9 * WITHOUT ANY WARRANTY; without even the implied warranty of
  10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 * General Public License for more details.
  12 */
  13/*
  14 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
  15 * All rights reserved
  16 * www.brocade.com
  17 */
  18#include <linux/firmware.h>
  19#include "bnad.h"
  20#include "bfi.h"
  21#include "cna.h"
  22
  23const struct firmware *bfi_fw;
  24static u32 *bfi_image_ct_cna, *bfi_image_ct2_cna;
  25static u32 bfi_image_ct_cna_size, bfi_image_ct2_cna_size;
  26
  27static u32 *
  28cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  29                        u32 *bfi_image_size, char *fw_name)
  30{
  31        const struct firmware *fw;
  32
  33        if (request_firmware(&fw, fw_name, &pdev->dev)) {
  34                pr_alert("Can't locate firmware %s\n", fw_name);
  35                goto error;
  36        }
  37
  38        *bfi_image = (u32 *)fw->data;
  39        *bfi_image_size = fw->size/sizeof(u32);
  40        bfi_fw = fw;
  41
  42        return *bfi_image;
  43error:
  44        return NULL;
  45}
  46
  47u32 *
  48cna_get_firmware_buf(struct pci_dev *pdev)
  49{
  50        if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
  51                if (bfi_image_ct2_cna_size == 0)
  52                        cna_read_firmware(pdev, &bfi_image_ct2_cna,
  53                                &bfi_image_ct2_cna_size, CNA_FW_FILE_CT2);
  54                return bfi_image_ct2_cna;
  55        } else if (bfa_asic_id_ct(pdev->device)) {
  56                if (bfi_image_ct_cna_size == 0)
  57                        cna_read_firmware(pdev, &bfi_image_ct_cna,
  58                                &bfi_image_ct_cna_size, CNA_FW_FILE_CT);
  59                return bfi_image_ct_cna;
  60        }
  61
  62        return NULL;
  63}
  64
  65u32 *
  66bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off)
  67{
  68        switch (asic_gen) {
  69        case BFI_ASIC_GEN_CT:
  70                return (bfi_image_ct_cna + off);
  71                break;
  72        case BFI_ASIC_GEN_CT2:
  73                return (bfi_image_ct2_cna + off);
  74                break;
  75        default:
  76                return NULL;
  77        }
  78}
  79
  80u32
  81bfa_cb_image_get_size(enum bfi_asic_gen asic_gen)
  82{
  83        switch (asic_gen) {
  84        case BFI_ASIC_GEN_CT:
  85                return bfi_image_ct_cna_size;
  86                break;
  87        case BFI_ASIC_GEN_CT2:
  88                return bfi_image_ct2_cna_size;
  89                break;
  90        default:
  91                return 0;
  92        }
  93}
  94