linux/drivers/scsi/fnic/vnic_scsi.h
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   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#ifndef _VNIC_SCSI_H_
  19#define _VNIC_SCSI_H_
  20
  21#define VNIC_FNIC_WQ_COPY_COUNT_MIN         1
  22#define VNIC_FNIC_WQ_COPY_COUNT_MAX         1
  23
  24#define VNIC_FNIC_WQ_DESCS_MIN              64
  25#define VNIC_FNIC_WQ_DESCS_MAX              128
  26
  27#define VNIC_FNIC_WQ_COPY_DESCS_MIN         64
  28#define VNIC_FNIC_WQ_COPY_DESCS_MAX         512
  29
  30#define VNIC_FNIC_RQ_DESCS_MIN              64
  31#define VNIC_FNIC_RQ_DESCS_MAX              128
  32
  33#define VNIC_FNIC_EDTOV_MIN                 1000
  34#define VNIC_FNIC_EDTOV_MAX                 255000
  35#define VNIC_FNIC_EDTOV_DEF                 2000
  36
  37#define VNIC_FNIC_RATOV_MIN                 1000
  38#define VNIC_FNIC_RATOV_MAX                 255000
  39
  40#define VNIC_FNIC_MAXDATAFIELDSIZE_MIN      256
  41#define VNIC_FNIC_MAXDATAFIELDSIZE_MAX      2112
  42
  43#define VNIC_FNIC_FLOGI_RETRIES_MIN         0
  44#define VNIC_FNIC_FLOGI_RETRIES_MAX         0xffffffff
  45#define VNIC_FNIC_FLOGI_RETRIES_DEF         0xffffffff
  46
  47#define VNIC_FNIC_FLOGI_TIMEOUT_MIN         1000
  48#define VNIC_FNIC_FLOGI_TIMEOUT_MAX         255000
  49
  50#define VNIC_FNIC_PLOGI_RETRIES_MIN         0
  51#define VNIC_FNIC_PLOGI_RETRIES_MAX         255
  52#define VNIC_FNIC_PLOGI_RETRIES_DEF         8
  53
  54#define VNIC_FNIC_PLOGI_TIMEOUT_MIN         1000
  55#define VNIC_FNIC_PLOGI_TIMEOUT_MAX         255000
  56
  57#define VNIC_FNIC_IO_THROTTLE_COUNT_MIN     1
  58#define VNIC_FNIC_IO_THROTTLE_COUNT_MAX     2048
  59
  60#define VNIC_FNIC_LINK_DOWN_TIMEOUT_MIN     0
  61#define VNIC_FNIC_LINK_DOWN_TIMEOUT_MAX     240000
  62
  63#define VNIC_FNIC_PORT_DOWN_TIMEOUT_MIN     0
  64#define VNIC_FNIC_PORT_DOWN_TIMEOUT_MAX     240000
  65
  66#define VNIC_FNIC_PORT_DOWN_IO_RETRIES_MIN  0
  67#define VNIC_FNIC_PORT_DOWN_IO_RETRIES_MAX  255
  68
  69#define VNIC_FNIC_LUNS_PER_TARGET_MIN       1
  70#define VNIC_FNIC_LUNS_PER_TARGET_MAX       1024
  71
  72/* Device-specific region: scsi configuration */
  73struct vnic_fc_config {
  74        u64 node_wwn;
  75        u64 port_wwn;
  76        u32 flags;
  77        u32 wq_enet_desc_count;
  78        u32 wq_copy_desc_count;
  79        u32 rq_desc_count;
  80        u32 flogi_retries;
  81        u32 flogi_timeout;
  82        u32 plogi_retries;
  83        u32 plogi_timeout;
  84        u32 io_throttle_count;
  85        u32 link_down_timeout;
  86        u32 port_down_timeout;
  87        u32 port_down_io_retries;
  88        u32 luns_per_tgt;
  89        u16 maxdatafieldsize;
  90        u16 ed_tov;
  91        u16 ra_tov;
  92        u16 intr_timer;
  93        u8 intr_timer_type;
  94};
  95
  96#define VFCF_FCP_SEQ_LVL_ERR    0x1     /* Enable FCP-2 Error Recovery */
  97#define VFCF_PERBI              0x2     /* persistent binding info available */
  98#define VFCF_FIP_CAPABLE        0x4     /* firmware can handle FIP */
  99
 100#endif /* _VNIC_SCSI_H_ */
 101