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 2008 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 #define XNF_MAX_RXDESCS 256 41 42 #define MCAST_HASHBITS 256 43 44 extern int xnf_diagnose; /* Available for use any time. */ 45 46 /* Flags to set in the global xnf_diagnose */ 47 #define XNF_DIAG_RX 0x01 48 #define XNF_DIAG_TX 0x02 49 #define XNF_DIAG_STATS 0x04 50 #define XNF_DIAG_RX_BUFS 0x08 51 52 /* DEBUG flags */ 53 #define XNF_DEBUG_DDI 0x01 54 #define XNF_DEBUG_TRACE 0x02 55 #define XNF_DEBUG_SEND 0x04 56 #define XNF_DEBUG_INT 0x08 57 58 #define XNF_DESC_ALIGN 8 59 60 61 /* Info pertaining to each xmit/receive buffer */ 62 struct xnf_buffer_desc { 63 frtn_t free_rtn; /* desballoc() structure */ 64 struct xnf *xnfp; 65 ddi_dma_handle_t dma_handle; 66 caddr_t buf; /* DMA-able data buffer */ 67 paddr_t buf_phys; 68 struct xnf_buffer_desc *next; /* For linking into free list */ 69 ddi_acc_handle_t acc_handle; 70 grant_ref_t grant_ref; /* grant table reference */ 71 uint16_t id; /* buffer id */ 72 }; 73 74 /* Various information about each transmit packet */ 75 struct tx_pktinfo { 76 mblk_t *mp; /* mblk associated with packet */ 77 ddi_dma_handle_t dma_handle; 78 struct xnf_buffer_desc *bdesc; /* pointer to buffer descriptor */ 79 grant_ref_t grant_ref; /* grant table reference */ 80 uint16_t id; /* tx pkt id/free list next pointer */ 81 }; 82 83 /* Per network-interface-controller driver private structure */ 84 typedef struct xnf { 85 /* most interesting stuff first to assist debugging */ 86 dev_info_t *xnf_devinfo; /* System per-device info. */ 87 mac_handle_t xnf_mh; /* Nemo per-device info. */ 88 int xnf_rx_bufs_outstanding; 89 int xnf_tx_descs_free; 90 int xnf_rx_descs_free; /* count of free rx bufs */ 91 int xnf_n_tx; /* No. xmit descriptors */ 92 int xnf_n_rx; /* No. recv descriptors */ 93 int xnf_n_rx_bufs; /* No. recv DMA buffers */ 94 int xnf_tx_start_thresh_regval; 95 unsigned char xnf_mac_addr[ETHERADDRL]; 96 int xnf_max_rx_bufs; 97 int xnf_rx_buffer_count; 98 int xnf_tx_buffer_count; 99 100 boolean_t xnf_connected; 101 boolean_t xnf_running; 102 103 boolean_t xnf_cksum_offload; 104 105 uint64_t xnf_stat_interrupts; 106 uint64_t xnf_stat_unclaimed_interrupts; 107 uint64_t xnf_stat_norxbuf; 108 uint64_t xnf_stat_drop; 109 uint64_t xnf_stat_errrx; 110 111 uint64_t xnf_stat_tx_attempt; 112 uint64_t xnf_stat_tx_pullup; 113 uint64_t xnf_stat_tx_pagebndry; 114 uint64_t xnf_stat_tx_defer; 115 uint64_t xnf_stat_rx_no_ringbuf; 116 uint64_t xnf_stat_mac_rcv_error; 117 uint64_t xnf_stat_runt; 118 119 uint64_t xnf_stat_ipackets; 120 uint64_t xnf_stat_opackets; 121 uint64_t xnf_stat_rbytes; 122 uint64_t xnf_stat_obytes; 123 124 uint64_t xnf_stat_tx_cksum_deferred; 125 uint64_t xnf_stat_rx_cksum_no_need; 126 uint64_t xnf_stat_hvcopy_enabled; /* on/off */ 127 uint64_t xnf_stat_hvcopy_packet_processed; 128 129 kstat_t *xnf_kstat_aux; 130 131 struct xnf_buffer_desc *xnf_free_list; 132 struct xnf_buffer_desc *xnf_tx_free_list; 133 int xnf_tx_pkt_id_list; 134 /* free list of avail pkt ids */ 135 struct tx_pktinfo xnf_tx_pkt_info[NET_TX_RING_SIZE]; 136 struct xnf_buffer_desc *xnf_rxpkt_bufptr[XNF_MAX_RXDESCS]; 137 138 ddi_iblock_cookie_t xnf_icookie; 139 kmutex_t xnf_tx_buf_mutex; 140 kmutex_t xnf_rx_buf_mutex; 141 kmutex_t xnf_txlock; 142 kmutex_t xnf_intrlock; 143 boolean_t xnf_tx_pages_readonly; 144 boolean_t xnf_need_sched; 145 146 netif_tx_front_ring_t xnf_tx_ring; /* tx interface struct ptr */ 147 ddi_dma_handle_t xnf_tx_ring_dma_handle; 148 ddi_acc_handle_t xnf_tx_ring_dma_acchandle; 149 paddr_t xnf_tx_ring_phys_addr; 150 grant_ref_t xnf_tx_ring_ref; 151 152 netif_rx_front_ring_t xnf_rx_ring; /* rx interface struct ptr */ 153 ddi_dma_handle_t xnf_rx_ring_dma_handle; 154 ddi_acc_handle_t xnf_rx_ring_dma_acchandle; 155 paddr_t xnf_rx_ring_phys_addr; 156 grant_ref_t xnf_rx_ring_ref; 157 158 uint16_t xnf_evtchn; /* channel to back end ctlr */ 159 grant_ref_t xnf_gref_tx_head; /* tx grant free list */ 160 grant_ref_t xnf_gref_rx_head; /* rx grant free list */ 161 kcondvar_t xnf_cv; 162 163 boolean_t xnf_rx_hvcopy; /* do we do HV copy? */ 164 } xnf_t; 165 166 #ifdef __cplusplus 167 } 168 #endif 169 170 #endif /* _SYS_XNF_H */ 171