Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 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 _FNIC_IO_H_ |
| 19 | #define _FNIC_IO_H_ |
| 20 | |
| 21 | #include <scsi/fc/fc_fcp.h> |
| 22 | |
| 23 | #define FNIC_DFLT_SG_DESC_CNT 32 |
Hiral Patel | cfe16d5 | 2013-02-12 17:00:59 -0800 | [diff] [blame] | 24 | #define FNIC_MAX_SG_DESC_CNT 256 /* Maximum descriptors per sgl */ |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 25 | #define FNIC_SG_DESC_ALIGN 16 /* Descriptor address alignment */ |
| 26 | |
| 27 | struct host_sg_desc { |
| 28 | __le64 addr; |
| 29 | __le32 len; |
| 30 | u32 _resvd; |
| 31 | }; |
| 32 | |
| 33 | struct fnic_dflt_sgl_list { |
| 34 | struct host_sg_desc sg_desc[FNIC_DFLT_SG_DESC_CNT]; |
| 35 | }; |
| 36 | |
| 37 | struct fnic_sgl_list { |
| 38 | struct host_sg_desc sg_desc[FNIC_MAX_SG_DESC_CNT]; |
| 39 | }; |
| 40 | |
| 41 | enum fnic_sgl_list_type { |
| 42 | FNIC_SGL_CACHE_DFLT = 0, /* cache with default size sgl */ |
| 43 | FNIC_SGL_CACHE_MAX, /* cache with max size sgl */ |
| 44 | FNIC_SGL_NUM_CACHES /* number of sgl caches */ |
| 45 | }; |
| 46 | |
| 47 | enum fnic_ioreq_state { |
Hiral Patel | 14eb5d9 | 2013-02-12 17:01:01 -0800 | [diff] [blame^] | 48 | FNIC_IOREQ_NOT_INITED = 0, |
| 49 | FNIC_IOREQ_CMD_PENDING, |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 50 | FNIC_IOREQ_ABTS_PENDING, |
| 51 | FNIC_IOREQ_ABTS_COMPLETE, |
| 52 | FNIC_IOREQ_CMD_COMPLETE, |
| 53 | }; |
| 54 | |
| 55 | struct fnic_io_req { |
| 56 | struct host_sg_desc *sgl_list; /* sgl list */ |
| 57 | void *sgl_list_alloc; /* sgl list address used for free */ |
| 58 | dma_addr_t sense_buf_pa; /* dma address for sense buffer*/ |
| 59 | dma_addr_t sgl_list_pa; /* dma address for sgl list */ |
| 60 | u16 sgl_cnt; |
| 61 | u8 sgl_type; /* device DMA descriptor list type */ |
| 62 | u8 io_completed:1; /* set to 1 when fw completes IO */ |
| 63 | u32 port_id; /* remote port DID */ |
Hiral Patel | 14eb5d9 | 2013-02-12 17:01:01 -0800 | [diff] [blame^] | 64 | unsigned long start_time; /* in jiffies */ |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 65 | struct completion *abts_done; /* completion for abts */ |
| 66 | struct completion *dr_done; /* completion for device reset */ |
| 67 | }; |
| 68 | |
| 69 | #endif /* _FNIC_IO_H_ */ |