1/*
2* Copyright (c) 2006 - 2011 Intel-NE, Inc.  All rights reserved.
3*
4* This software is available to you under a choice of one of two
5* licenses.  You may choose to be licensed under the terms of the GNU
6* General Public License (GPL) Version 2, available from the file
7* COPYING in the main directory of this source tree, or the
8* OpenIB.org BSD license below:
9*
10*     Redistribution and use in source and binary forms, with or
11*     without modification, are permitted provided that the following
12*     conditions are met:
13*
14*      - Redistributions of source code must retain the above
15*        copyright notice, this list of conditions and the following
16*        disclaimer.
17*
18*      - Redistributions in binary form must reproduce the above
19*        copyright notice, this list of conditions and the following
20*        disclaimer in the documentation and/or other materials
21*        provided with the distribution.
22*
23* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30* SOFTWARE.
31*/
32
33#ifndef __NES_MGT_H
34#define __NES_MGT_H
35
36#define MPA_FRAMING 6	/* length is 2 bytes, crc is 4 bytes */
37
38int nes_init_mgt_qp(struct nes_device *nesdev, struct net_device *netdev, struct nes_vnic *nesvnic);
39void nes_queue_mgt_skbs(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp);
40void nes_destroy_mgt(struct nes_vnic *nesvnic);
41void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp);
42
43struct nes_hw_mgt {
44	struct nes_hw_nic_rq_wqe *rq_vbase;	/* virtual address of rq */
45	dma_addr_t rq_pbase;			/* PCI memory for host rings */
46	struct sk_buff *rx_skb[NES_NIC_WQ_SIZE];
47	u16 qp_id;
48	u16 sq_head;
49	u16 rq_head;
50	u16 rq_tail;
51	u16 rq_size;
52	u8 replenishing_rq;
53	u8 reserved;
54	spinlock_t rq_lock;
55};
56
57struct nes_vnic_mgt {
58	struct nes_vnic        *nesvnic;
59	struct nes_hw_mgt      mgt;
60	struct nes_hw_nic_cq   mgt_cq;
61	atomic_t               rx_skbs_needed;
62	struct timer_list      rq_wqes_timer;
63	atomic_t               rx_skb_timer_running;
64};
65
66#define MAX_FPDU_FRAGS 4
67struct pau_fpdu_frag {
68	struct sk_buff         *skb;
69	u64                    physaddr;
70	u32                    frag_len;
71	bool                   cmplt;
72};
73
74struct pau_fpdu_info {
75	struct nes_qp          *nesqp;
76	struct nes_cqp_request *cqp_request;
77	void                   *hdr_vbase;
78	dma_addr_t             hdr_pbase;
79	int                    hdr_len;
80	u16                    data_len;
81	u16                    frag_cnt;
82	struct pau_fpdu_frag   frags[MAX_FPDU_FRAGS];
83};
84
85enum pau_qh_state {
86	PAU_DEL_QH,
87	PAU_ADD_LB_QH,
88	PAU_READY
89};
90
91struct pau_qh_chg {
92	struct nes_device *nesdev;
93	struct nes_vnic *nesvnic;
94	struct nes_qp *nesqp;
95};
96
97#endif          /* __NES_MGT_H */
98