drivers/scsi/fnic/vnic_scsi.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 #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     256
  58 #define VNIC_FNIC_IO_THROTTLE_COUNT_MAX     4096
  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 */
  73 struct 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
  99 #endif /* _VNIC_SCSI_H_ */