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         u32 n;
  34
  35         if (request_firmware(&fw, fw_name, &pdev->dev)) {
  36                 dev_alert(&pdev->dev, "can't load firmware %s\n", fw_name);
  37                 goto error;
  38         }
  39
  40         *bfi_image = (u32 *)fw->data;
  41         *bfi_image_size = fw->size/sizeof(u32);
  42         bfi_fw = fw;
  43
  44         /* Convert loaded firmware to host order as it is stored in file
  45          * as sequence of LE32 integers.
  46          */
  47         for (n = 0; n < *bfi_image_size; n++)
  48                 le32_to_cpus(*bfi_image + n);
  49
  50         return *bfi_image;
  51 error:
  52         return NULL;
  53 }
  54
  55 u32 *
  56 cna_get_firmware_buf(struct pci_dev *pdev)
  57 {
  58         if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
  59                 if (bfi_image_ct2_cna_size == 0)
  60                         cna_read_firmware(pdev, &bfi_image_ct2_cna,
  61                                 &bfi_image_ct2_cna_size, CNA_FW_FILE_CT2);
  62                 return bfi_image_ct2_cna;
  63         } else if (bfa_asic_id_ct(pdev->device)) {
  64                 if (bfi_image_ct_cna_size == 0)
  65                         cna_read_firmware(pdev, &bfi_image_ct_cna,
  66                                 &bfi_image_ct_cna_size, CNA_FW_FILE_CT);
  67                 return bfi_image_ct_cna;
  68         }
  69
  70         return NULL;
  71 }
  72
  73 u32 *
  74 bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off)
  75 {
  76         switch (asic_gen) {
  77         case BFI_ASIC_GEN_CT:
  78                 return (bfi_image_ct_cna + off);
  79         case BFI_ASIC_GEN_CT2:
  80                 return (bfi_image_ct2_cna + off);
  81         default:
  82                 return NULL;
  83         }
  84 }
  85
  86 u32
  87 bfa_cb_image_get_size(enum bfi_asic_gen asic_gen)
  88 {
  89         switch (asic_gen) {
  90         case BFI_ASIC_GEN_CT:
  91                 return bfi_image_ct_cna_size;
  92         case BFI_ASIC_GEN_CT2:
  93                 return bfi_image_ct2_cna_size;
  94         default:
  95                 return 0;
  96         }
  97 }