drivers/net/ethernet/brocade/bna/cna_fwimg.c

   1 /*
   2  * Linux network driver for QLogic BR-series 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) 2005-2014 Brocade Communications Systems, Inc.
  15  * Copyright (c) 2014-2015 QLogic Corporation
  16  * All rights reserved
  17  * www.qlogic.com
  18  */
  19 #include <linux/firmware.h>
  20 #include "bnad.h"
  21 #include "bfi.h"
  22 #include "cna.h"
  23
  24 const struct firmware *bfi_fw;
  25 static u32 *bfi_image_ct_cna, *bfi_image_ct2_cna;
  26 static u32 bfi_image_ct_cna_size, bfi_image_ct2_cna_size;
  27
  28 static u32 *
  29 cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  30                         u32 *bfi_image_size, char *fw_name)
  31 {
  32         const struct firmware *fw;
  33
  34         if (request_firmware(&fw, fw_name, &pdev->dev)) {
  35                 pr_alert("Can't locate firmware %s\n", fw_name);
  36                 goto error;
  37         }
  38
  39         *bfi_image = (u32 *)fw->data;
  40         *bfi_image_size = fw->size/sizeof(u32);
  41         bfi_fw = fw;
  42
  43         return *bfi_image;
  44 error:
  45         return NULL;
  46 }
  47
  48 u32 *
  49 cna_get_firmware_buf(struct pci_dev *pdev)
  50 {
  51         if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
  52                 if (bfi_image_ct2_cna_size == 0)
  53                         cna_read_firmware(pdev, &bfi_image_ct2_cna,
  54                                 &bfi_image_ct2_cna_size, CNA_FW_FILE_CT2);
  55                 return bfi_image_ct2_cna;
  56         } else if (bfa_asic_id_ct(pdev->device)) {
  57                 if (bfi_image_ct_cna_size == 0)
  58                         cna_read_firmware(pdev, &bfi_image_ct_cna,
  59                                 &bfi_image_ct_cna_size, CNA_FW_FILE_CT);
  60                 return bfi_image_ct_cna;
  61         }
  62
  63         return NULL;
  64 }
  65
  66 u32 *
  67 bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off)
  68 {
  69         switch (asic_gen) {
  70         case BFI_ASIC_GEN_CT:
  71                 return (bfi_image_ct_cna + off);
  72         case BFI_ASIC_GEN_CT2:
  73                 return (bfi_image_ct2_cna + off);
  74         default:
  75                 return NULL;
  76         }
  77 }
  78
  79 u32
  80 bfa_cb_image_get_size(enum bfi_asic_gen asic_gen)
  81 {
  82         switch (asic_gen) {
  83         case BFI_ASIC_GEN_CT:
  84                 return bfi_image_ct_cna_size;
  85         case BFI_ASIC_GEN_CT2:
  86                 return bfi_image_ct2_cna_size;
  87         default:
  88                 return 0;
  89         }
  90 }