1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #ifndef _SYS_XNF_H
28 #define _SYS_XNF_H
29
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33
34 #define NET_TX_RING_SIZE __RING_SIZE((netif_tx_sring_t *)0, PAGESIZE)
35 #define NET_RX_RING_SIZE __RING_SIZE((netif_rx_sring_t *)0, PAGESIZE)
36
37 #define XNF_MAXPKT 1500 /* MTU size */
38 #define XNF_FRAMESIZE 1514 /* frame size including MAC header */
39
40 /* DEBUG flags */
41 #define XNF_DEBUG_DDI 0x01
42 #define XNF_DEBUG_TRACE 0x02
43
44 /*
45 * Information about each receive buffer and any transmit look-aside
46 * buffers.
47 */
48 typedef struct xnf_buf {
49 frtn_t free_rtn;
50 struct xnf *xnfp;
51 ddi_dma_handle_t dma_handle;
52 caddr_t buf; /* DMA-able data buffer */
53 paddr_t buf_phys;
54 mfn_t buf_mfn;
55 size_t len;
56 struct xnf_buf *next; /* For linking into free list */
57 ddi_acc_handle_t acc_handle;
58 grant_ref_t grant_ref; /* grant table reference */
59 uint16_t id; /* buffer id */
60 unsigned int gen;
61 } xnf_buf_t;
62
63 /*
64 * Information about each transmit buffer.
65 */
66 typedef struct xnf_txbuf {
67 struct xnf_txbuf *tx_next;
68 mblk_t *tx_mp; /* mblk associated with packet */
69 netif_tx_request_t tx_txreq;
70 caddr_t tx_bufp;
71 ddi_dma_handle_t tx_dma_handle;
72 mfn_t tx_mfn;
73 xnf_buf_t *tx_bdesc; /* Look-aside buffer, if used. */
74 unsigned char tx_type;
75 int16_t tx_status;
76 RING_IDX tx_slot;
77
78 #define TX_DATA 1
79 #define TX_MCAST_REQ 2
80 #define TX_MCAST_RSP 3
81 } xnf_txbuf_t;
82
83 /*
84 * Information about each outstanding transmit operation.
85 */
86 typedef struct xnf_txid {
87 uint16_t id; /* Id of this transmit buffer. */
88 uint16_t next; /* Freelist of ids. */
89 xnf_txbuf_t *txbuf; /* Buffer details. */
90 } xnf_txid_t;
91
92 /*
93 * Per-instance data.
94 */
95 typedef struct xnf {
96 /* most interesting stuff first to assist debugging */
97 dev_info_t *xnf_devinfo;
98 mac_handle_t xnf_mh;
99 unsigned char xnf_mac_addr[ETHERADDRL];
100
101 unsigned int xnf_gen; /* Increments on resume. */
102
103 boolean_t xnf_connected;
104 boolean_t xnf_running;
105
106 boolean_t xnf_be_rx_copy;
107 boolean_t xnf_be_mcast_control;
108
109 uint64_t xnf_stat_interrupts;
110 uint64_t xnf_stat_unclaimed_interrupts;
111 uint64_t xnf_stat_norxbuf;
112 uint64_t xnf_stat_drop;
113 uint64_t xnf_stat_errrx;
114
115 uint64_t xnf_stat_tx_attempt;
116 uint64_t xnf_stat_tx_pullup;
117 uint64_t xnf_stat_tx_pagebndry;
118 uint64_t xnf_stat_tx_defer;
119 uint64_t xnf_stat_mac_rcv_error;
120 uint64_t xnf_stat_runt;
121
122 uint64_t xnf_stat_ipackets;
123 uint64_t xnf_stat_opackets;
124 uint64_t xnf_stat_rbytes;
125 uint64_t xnf_stat_obytes;
126
127 uint64_t xnf_stat_tx_cksum_deferred;
128 uint64_t xnf_stat_rx_cksum_no_need;
129
130 uint64_t xnf_stat_buf_allocated;
131 uint64_t xnf_stat_buf_outstanding;
132 uint64_t xnf_stat_gref_outstanding;
133 uint64_t xnf_stat_gref_failure;
134 uint64_t xnf_stat_gref_peak;
135 uint64_t xnf_stat_rx_allocb_fail;
136 uint64_t xnf_stat_rx_desballoc_fail;
137
138 kstat_t *xnf_kstat_aux;
139
140 ddi_iblock_cookie_t xnf_icookie;
141
142 netif_tx_front_ring_t xnf_tx_ring;
143 ddi_dma_handle_t xnf_tx_ring_dma_handle;
144 ddi_acc_handle_t xnf_tx_ring_dma_acchandle;
145 paddr_t xnf_tx_ring_phys_addr;
146 grant_ref_t xnf_tx_ring_ref;
147
148 xnf_txid_t xnf_tx_pkt_id[NET_TX_RING_SIZE];
149 uint16_t xnf_tx_pkt_id_head;
150 kmutex_t xnf_txlock;
151 kmutex_t xnf_schedlock;
152 boolean_t xnf_need_sched;
153 kcondvar_t xnf_cv_tx_slots;
154 kmem_cache_t *xnf_tx_buf_cache;
155
156 netif_rx_front_ring_t xnf_rx_ring;
157 ddi_dma_handle_t xnf_rx_ring_dma_handle;
158 ddi_acc_handle_t xnf_rx_ring_dma_acchandle;
159 paddr_t xnf_rx_ring_phys_addr;
160 grant_ref_t xnf_rx_ring_ref;
161
162 xnf_buf_t *xnf_rx_pkt_info[NET_RX_RING_SIZE];
163 kmutex_t xnf_rxlock;
164 mblk_t *xnf_rx_head;
165 mblk_t *xnf_rx_tail;
166 boolean_t xnf_rx_new_buffers_posted;
167 kmem_cache_t *xnf_buf_cache;
168
169 uint16_t xnf_evtchn;
170
171 kmutex_t xnf_gref_lock;
172 grant_ref_t xnf_gref_head;
173
174 kcondvar_t xnf_cv_state;
175 kcondvar_t xnf_cv_multicast;
176 uint_t xnf_pending_multicast;
177 } xnf_t;
178
179 #ifdef __cplusplus
180 }
181 #endif
182
183 #endif /* _SYS_XNF_H */