drivers/scsi/snic/vnic_snic.h

   1 /*
   2  * Copyright 2014 Cisco Systems, Inc.  All rights reserved.
   3  *
   4  * This program is free software; you may redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   9  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  10  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  11  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  12  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  13  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  14  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  15  * SOFTWARE.
  16  */
  17
  18 #ifndef _VNIC_SNIC_H_
  19 #define _VNIC_SNIC_H_
  20
  21 #define VNIC_SNIC_WQ_DESCS_MIN              64
  22 #define VNIC_SNIC_WQ_DESCS_MAX              1024
  23
  24 #define VNIC_SNIC_MAXDATAFIELDSIZE_MIN      256
  25 #define VNIC_SNIC_MAXDATAFIELDSIZE_MAX      2112
  26
  27 #define VNIC_SNIC_IO_THROTTLE_COUNT_MIN     1
  28 #define VNIC_SNIC_IO_THROTTLE_COUNT_MAX     1024
  29
  30 #define VNIC_SNIC_PORT_DOWN_TIMEOUT_MIN     0
  31 #define VNIC_SNIC_PORT_DOWN_TIMEOUT_MAX     240000
  32
  33 #define VNIC_SNIC_PORT_DOWN_IO_RETRIES_MIN  0
  34 #define VNIC_SNIC_PORT_DOWN_IO_RETRIES_MAX  255
  35
  36 #define VNIC_SNIC_LUNS_PER_TARGET_MIN       1
  37 #define VNIC_SNIC_LUNS_PER_TARGET_MAX       1024
  38
  39 /* Device-specific region: scsi configuration */
  40 struct vnic_snic_config {
  41         u32 flags;
  42         u32 wq_enet_desc_count;
  43         u32 io_throttle_count;
  44         u32 port_down_timeout;
  45         u32 port_down_io_retries;
  46         u32 luns_per_tgt;
  47         u16 maxdatafieldsize;
  48         u16 intr_timer;
  49         u8 intr_timer_type;
  50         u8 _resvd2;
  51         u8 xpt_type;
  52         u8 hid;
  53 };
  54 #endif /* _VNIC_SNIC_H_ */