1/*******************************************************************************
2
3  Intel 10 Gigabit PCI Express Linux driver
4  Copyright(c) 1999 - 2012 Intel Corporation.
5
6  This program is free software; you can redistribute it and/or modify it
7  under the terms and conditions of the GNU General Public License,
8  version 2, as published by the Free Software Foundation.
9
10  This program is distributed in the hope it will be useful, but WITHOUT
11  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13  more details.
14
15  You should have received a copy of the GNU General Public License along with
16  this program; if not, write to the Free Software Foundation, Inc.,
17  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19  The full GNU General Public License is included in this distribution in
20  the file called "LICENSE.GPL".
21
22  Contact Information:
23  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25
26*******************************************************************************/
27
28#ifndef _IXGBE_FCOE_H
29#define _IXGBE_FCOE_H
30
31#ifdef IXGBE_FCOE
32
33#include <scsi/fc/fc_fs.h>
34#include <scsi/fc/fc_fcoe.h>
35
36/* shift bits within STAT fo FCSTAT */
37#define IXGBE_RXDADV_FCSTAT_SHIFT	4
38
39/* ddp user buffer */
40#define IXGBE_BUFFCNT_MAX	256	/* 8 bits bufcnt */
41#define IXGBE_FCPTR_ALIGN	16
42#define IXGBE_FCPTR_MAX		(IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
43#define IXGBE_FCBUFF_4KB	0x0
44#define IXGBE_FCBUFF_8KB	0x1
45#define IXGBE_FCBUFF_16KB	0x2
46#define IXGBE_FCBUFF_64KB	0x3
47#define IXGBE_FCBUFF_MAX	65536	/* 64KB max */
48#define IXGBE_FCBUFF_MIN	4096	/* 4KB min */
49#define IXGBE_FCOE_DDP_MAX	512	/* 9 bits xid */
50
51/* Default traffic class to use for FCoE */
52#define IXGBE_FCOE_DEFTC	3
53
54/* fcerr */
55#define IXGBE_FCERR_BADCRC	0x00100000
56#define IXGBE_FCERR_EOFSOF	0x00200000
57#define IXGBE_FCERR_NOFIRST	0x00300000
58#define IXGBE_FCERR_OOOSEQ	0x00400000
59#define IXGBE_FCERR_NODMA	0x00500000
60#define IXGBE_FCERR_PKTLOST	0x00600000
61
62/* FCoE DDP for target mode */
63#define __IXGBE_FCOE_TARGET	1
64
65struct ixgbe_fcoe_ddp {
66	int len;
67	u32 err;
68	unsigned int sgc;
69	struct scatterlist *sgl;
70	dma_addr_t udp;
71	u64 *udl;
72	struct pci_pool *pool;
73};
74
75struct ixgbe_fcoe {
76	struct pci_pool **pool;
77	atomic_t refcnt;
78	spinlock_t lock;
79	struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX];
80	unsigned char *extra_ddp_buffer;
81	dma_addr_t extra_ddp_buffer_dma;
82	u64 __percpu *pcpu_noddp;
83	u64 __percpu *pcpu_noddp_ext_buff;
84	unsigned long mode;
85	u8 tc;
86	u8 up;
87	u8 up_set;
88};
89#endif /* IXGBE_FCOE */
90
91#endif /* _IXGBE_FCOE_H */
92