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Diffstat (limited to 'usr/src/uts/common/xen/io/xnb.h')
| -rw-r--r-- | usr/src/uts/common/xen/io/xnb.h | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/usr/src/uts/common/xen/io/xnb.h b/usr/src/uts/common/xen/io/xnb.h new file mode 100644 index 0000000000..16ba897727 --- /dev/null +++ b/usr/src/uts/common/xen/io/xnb.h @@ -0,0 +1,181 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + * + * xnb.h - definitions for Xen dom0 network driver + */ + +#ifndef _SYS_XNB_H +#define _SYS_XNB_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/types.h> +#include <sys/kstat.h> +#include <sys/stream.h> +#include <sys/ethernet.h> +#include <sys/hypervisor.h> +#include <xen/public/io/netif.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define NET_TX_RING_SIZE __RING_SIZE((netif_tx_sring_t *)0, PAGESIZE) +#define NET_RX_RING_SIZE __RING_SIZE((netif_rx_sring_t *)0, PAGESIZE) + +#define XNBMAXPKT 1500 /* MTU size */ + +/* DEBUG flags */ +#define XNBDDI 0x01 +#define XNBTRACE 0x02 +#define XNBSEND 0x04 +#define XNBRECV 0x08 +#define XNBINTR 0x10 +#define XNBRING 0x20 +#define XNBCKSUM 0x40 + +typedef struct xnb xnb_t; + +/* + * The xnb module provides core inter-domain network protocol functionality. + * It is connected to the rest of Solaris in two ways: + * - as a GLDv3 driver (with xnbu), + * - as a GLDv3 consumer (with xnbo). + * + * The different modes of operation are termed "flavours" and each + * instance of an xnb based driver operates in one and only one mode. + * The common xnb driver exports a set of functions to these drivers + * (declarations at the foot of this file) and calls back into the + * drivers via the xnb_flavour_t structure. + */ +typedef struct xnb_flavour { + void (*xf_recv)(xnb_t *, mblk_t *); + void (*xf_peer_connected)(xnb_t *); + void (*xf_peer_disconnected)(xnb_t *); + boolean_t (*xf_hotplug_connected)(xnb_t *); + mblk_t *(*xf_cksum_from_peer)(xnb_t *, mblk_t *, uint16_t); + uint16_t (*xf_cksum_to_peer)(xnb_t *, mblk_t *); +} xnb_flavour_t; + +typedef struct xnb_rxbuf { + frtn_t xr_free_rtn; + xnb_t *xr_xnbp; + gnttab_map_grant_ref_t xr_mop; + RING_IDX xr_id; + uint16_t xr_status; + unsigned int xr_flags; + +#define XNB_RXBUF_INUSE 0x01 + +} xnb_rxbuf_t; + +/* Per network-interface-controller driver private structure */ +struct xnb { + /* most interesting stuff first to assist debugging */ + dev_info_t *x_devinfo; /* System per-device info. */ + + xnb_flavour_t *x_flavour; + void *x_flavour_data; + + boolean_t x_irq; + unsigned char x_mac_addr[ETHERADDRL]; + + uint64_t x_stat_ipackets; + uint64_t x_stat_opackets; + uint64_t x_stat_rbytes; + uint64_t x_stat_obytes; + + uint64_t x_stat_intr; + uint64_t x_stat_xmit_defer; + + uint64_t x_stat_tx_cksum_deferred; + uint64_t x_stat_rx_cksum_no_need; + + uint64_t x_stat_tx_notify_sent; + uint64_t x_stat_tx_notify_deferred; + + uint64_t x_stat_rx_notify_sent; + uint64_t x_stat_rx_notify_deferred; + + uint64_t x_stat_tx_too_early; + uint64_t x_stat_rx_too_early; + uint64_t x_stat_rx_allocb_failed; + uint64_t x_stat_mac_full; + uint64_t x_stat_spurious_intr; + uint64_t x_stat_allocation_success; + uint64_t x_stat_allocation_failure; + uint64_t x_stat_small_allocation_success; + uint64_t x_stat_small_allocation_failure; + + uint64_t x_stat_csum_hardware; + uint64_t x_stat_csum_software; + + kstat_t *x_kstat_aux; + + boolean_t x_cksum_offload; + + ddi_iblock_cookie_t x_icookie; + + kmutex_t x_rx_lock; + kmutex_t x_tx_lock; + + int x_rx_unmop_count; + int x_rx_buf_count; + boolean_t x_rx_pages_writable; + + netif_rx_back_ring_t x_rx_ring; /* rx interface struct ptr */ + void *x_rx_ring_addr; + grant_ref_t x_rx_ring_ref; + grant_handle_t x_rx_ring_handle; + + netif_tx_back_ring_t x_tx_ring; /* tx interface struct ptr */ + void *x_tx_ring_addr; + grant_ref_t x_tx_ring_ref; + grant_handle_t x_tx_ring_handle; + + boolean_t x_connected; + boolean_t x_hotplugged; + boolean_t x_detachable; + int x_evtchn; /* channel to front end */ + domid_t x_peer; + + xnb_rxbuf_t *x_rx_bufp[NET_TX_RING_SIZE]; + gnttab_map_grant_ref_t x_rx_mop[NET_TX_RING_SIZE]; + gnttab_unmap_grant_ref_t x_rx_unmop[NET_TX_RING_SIZE]; + + caddr_t x_tx_va; + gnttab_transfer_t x_tx_top[NET_RX_RING_SIZE]; +}; + +extern int xnb_attach(dev_info_t *, xnb_flavour_t *, void *); +extern void xnb_detach(dev_info_t *); +extern mblk_t *xnb_to_peer(xnb_t *, mblk_t *); +extern mblk_t *xnb_process_cksum_flags(xnb_t *, mblk_t *, uint32_t); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_XNB_H */ |