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 }
98