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be1f1ffa AE |
1 | /* bnx2x_vfpf.c: Broadcom Everest network driver. |
2 | * | |
3 | * Copyright 2009-2012 Broadcom Corporation | |
4 | * | |
5 | * Unless you and Broadcom execute a separate written software license | |
6 | * agreement governing use of this software, this software is licensed to you | |
7 | * under the terms of the GNU General Public License version 2, available | |
8 | * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). | |
9 | * | |
10 | * Notwithstanding the above, under no circumstances may you combine this | |
11 | * software in any way with any other Broadcom software provided under a | |
12 | * license other than the GPL, without Broadcom's express prior written | |
13 | * consent. | |
14 | * | |
15 | * Maintained by: Eilon Greenstein <eilong@broadcom.com> | |
16 | * Written by: Shmulik Ravid <shmulikr@broadcom.com> | |
17 | * Ariel Elior <ariele@broadcom.com> | |
18 | */ | |
19 | ||
20 | #include "bnx2x.h" | |
21 | #include "bnx2x_sriov.h" | |
22 | ||
23 | /* place a given tlv on the tlv buffer at a given offset */ | |
24 | void bnx2x_add_tlv(struct bnx2x *bp, void *tlvs_list, u16 offset, u16 type, | |
25 | u16 length) | |
26 | { | |
27 | struct channel_tlv *tl = | |
28 | (struct channel_tlv *)(tlvs_list + offset); | |
29 | ||
30 | tl->type = type; | |
31 | tl->length = length; | |
32 | } | |
33 | ||
34 | /* Clear the mailbox and init the header of the first tlv */ | |
35 | void bnx2x_vfpf_prep(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv, | |
36 | u16 type, u16 length) | |
37 | { | |
38 | DP(BNX2X_MSG_IOV, "preparing to send %d tlv over vf pf channel\n", | |
39 | type); | |
40 | ||
41 | /* Clear mailbox */ | |
42 | memset(bp->vf2pf_mbox, 0, sizeof(struct bnx2x_vf_mbx_msg)); | |
43 | ||
44 | /* init type and length */ | |
45 | bnx2x_add_tlv(bp, &first_tlv->tl, 0, type, length); | |
46 | ||
47 | /* init first tlv header */ | |
48 | first_tlv->resp_msg_offset = sizeof(bp->vf2pf_mbox->req); | |
49 | } | |
50 | ||
51 | /* list the types and lengths of the tlvs on the buffer */ | |
52 | void bnx2x_dp_tlv_list(struct bnx2x *bp, void *tlvs_list) | |
53 | { | |
54 | int i = 1; | |
55 | struct channel_tlv *tlv = (struct channel_tlv *)tlvs_list; | |
56 | ||
57 | while (tlv->type != CHANNEL_TLV_LIST_END) { | |
58 | /* output tlv */ | |
59 | DP(BNX2X_MSG_IOV, "TLV number %d: type %d, length %d\n", i, | |
60 | tlv->type, tlv->length); | |
61 | ||
62 | /* advance to next tlv */ | |
63 | tlvs_list += tlv->length; | |
64 | ||
65 | /* cast general tlv list pointer to channel tlv header*/ | |
66 | tlv = (struct channel_tlv *)tlvs_list; | |
67 | ||
68 | i++; | |
69 | ||
70 | /* break condition for this loop */ | |
71 | if (i > MAX_TLVS_IN_LIST) { | |
72 | WARN(true, "corrupt tlvs"); | |
73 | return; | |
74 | } | |
75 | } | |
76 | ||
77 | /* output last tlv */ | |
78 | DP(BNX2X_MSG_IOV, "TLV number %d: type %d, length %d\n", i, | |
79 | tlv->type, tlv->length); | |
80 | } |