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 */ 98