drivers/net/enic/vnic_enet.h

   1 /*
   2  * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * This program is free software; you may redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  10  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  11  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  12  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  13  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  14  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  15  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  16  * SOFTWARE.
  17  *
  18  */
  19
  20 #ifndef _VNIC_ENIC_H_
  21 #define _VNIC_ENIC_H_
  22
  23 /* Hardware intr coalesce timer is in units of 1.5us */
  24 #define INTR_COALESCE_USEC_TO_HW(usec) ((usec) * 2/3)
  25 #define INTR_COALESCE_HW_TO_USEC(usec) ((usec) * 3/2)
  26
  27 /* Device-specific region: enet configuration */
  28 struct vnic_enet_config {
  29         u32 flags;
  30         u32 wq_desc_count;
  31         u32 rq_desc_count;
  32         u16 mtu;
  33         u16 intr_timer;
  34         u8 intr_timer_type;
  35         u8 intr_mode;
  36         char devname[16];
  37         u32 intr_timer_usec;
  38         u16 loop_tag;
  39 };
  40
  41 #define VENETF_TSO              0x1     /* TSO enabled */
  42 #define VENETF_LRO              0x2     /* LRO enabled */
  43 #define VENETF_RXCSUM           0x4     /* RX csum enabled */
  44 #define VENETF_TXCSUM           0x8     /* TX csum enabled */
  45 #define VENETF_RSS              0x10    /* RSS enabled */
  46 #define VENETF_RSSHASH_IPV4     0x20    /* Hash on IPv4 fields */
  47 #define VENETF_RSSHASH_TCPIPV4  0x40    /* Hash on TCP + IPv4 fields */
  48 #define VENETF_RSSHASH_IPV6     0x80    /* Hash on IPv6 fields */
  49 #define VENETF_RSSHASH_TCPIPV6  0x100   /* Hash on TCP + IPv6 fields */
  50 #define VENETF_RSSHASH_IPV6_EX  0x200   /* Hash on IPv6 extended fields */
  51 #define VENETF_RSSHASH_TCPIPV6_EX 0x400 /* Hash on TCP + IPv6 ext. fields */
  52 #define VENETF_LOOP             0x800   /* Loopback enabled */
  53
  54 #endif /* _VNIC_ENIC_H_ */