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

   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
  24const struct firmware *bfi_fw;
  25static u32 *bfi_image_ct_cna, *bfi_image_ct2_cna;
  26static u32 bfi_image_ct_cna_size, bfi_image_ct2_cna_size;
  27
  28static u32 *
  29cna_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;
  51error:
  52        return NULL;
  53}
  54
  55u32 *
  56cna_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
  73u32 *
  74bfa_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
  86u32
  87bfa_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}
  98