Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
nes_mgt.h
Go to the documentation of this file.
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 
38 int nes_init_mgt_qp(struct nes_device *nesdev, struct net_device *netdev, struct nes_vnic *nesvnic);
39 void nes_queue_mgt_skbs(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp);
40 void nes_destroy_mgt(struct nes_vnic *nesvnic);
41 void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp);
42 
43 struct 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 
57 struct 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
67 struct pau_fpdu_frag {
68  struct sk_buff *skb;
69  u64 physaddr;
70  u32 frag_len;
71  bool cmplt;
72 };
73 
74 struct 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 
85 enum pau_qh_state {
86  PAU_DEL_QH,
87  PAU_ADD_LB_QH,
88  PAU_READY
89 };
90 
91 struct 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 */
Generated on Thu Jan 10 2013 13:38:05 for Linux Kernel by   doxygen 1.8.2