linux/drivers/net/enic/vnic_enet.h

/*
 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#ifndef _VNIC_ENIC_H_
#define _VNIC_ENIC_H_

/* Hardware intr coalesce timer is in units of 1.5us */
#define INTR_COALESCE_USEC_TO_HW(usec) ((usec) * 2/3)
#define INTR_COALESCE_HW_TO_USEC(usec) ((usec) * 3/2)

/* Device-specific region: enet configuration */
struct vnic_enet_config {
	u32 flags;
	u32 wq_desc_count;
	u32 rq_desc_count;
	u16 mtu;
	u16 intr_timer_deprecated;
	u8 intr_timer_type;
	u8 intr_mode;
	char devname[16];
	u32 intr_timer_usec;
	u16 loop_tag;
};

#define VENETF_TSO		0x1	/* TSO enabled */
#define VENETF_LRO		0x2	/* LRO enabled */
#define VENETF_RXCSUM		0x4	/* RX csum enabled */
#define VENETF_TXCSUM		0x8	/* TX csum enabled */
#define VENETF_RSS		0x10	/* RSS enabled */
#define VENETF_RSSHASH_IPV4	0x20	/* Hash on IPv4 fields */
#define VENETF_RSSHASH_TCPIPV4	0x40	/* Hash on TCP + IPv4 fields */
#define VENETF_RSSHASH_IPV6	0x80	/* Hash on IPv6 fields */
#define VENETF_RSSHASH_TCPIPV6	0x100	/* Hash on TCP + IPv6 fields */
#define VENETF_RSSHASH_IPV6_EX	0x200	/* Hash on IPv6 extended fields */
#define VENETF_RSSHASH_TCPIPV6_EX 0x400	/* Hash on TCP + IPv6 ext. fields */
#define VENETF_LOOP		0x800	/* Loopback enabled */

#endif /* _VNIC_ENIC_H_ */