1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 ********************************************************************/
24 #define LPFC_NVMET_DEFAULT_SEGS (64 + 1) /* 256K IOs */
25 #define LPFC_NVMET_RQE_DEF_COUNT 512
26 #define LPFC_NVMET_SUCCESS_LEN 12
28 /* Used for NVME Target */
29 struct lpfc_nvmet_tgtport
{
30 struct lpfc_hba
*phba
;
31 struct completion tport_unreg_done
;
33 /* Stats counters - lpfc_nvmet_unsol_ls_buffer */
34 atomic_t rcv_ls_req_in
;
35 atomic_t rcv_ls_req_out
;
36 atomic_t rcv_ls_req_drop
;
37 atomic_t xmt_ls_abort
;
38 atomic_t xmt_ls_abort_cmpl
;
40 /* Stats counters - lpfc_nvmet_xmt_ls_rsp */
44 /* Stats counters - lpfc_nvmet_xmt_ls_rsp_cmp */
45 atomic_t xmt_ls_rsp_error
;
46 atomic_t xmt_ls_rsp_cmpl
;
48 /* Stats counters - lpfc_nvmet_unsol_fcp_buffer */
49 atomic_t rcv_fcp_cmd_in
;
50 atomic_t rcv_fcp_cmd_out
;
51 atomic_t rcv_fcp_cmd_drop
;
52 atomic_t rcv_fcp_cmd_defer
;
53 atomic_t xmt_fcp_release
;
55 /* Stats counters - lpfc_nvmet_xmt_fcp_op */
56 atomic_t xmt_fcp_drop
;
57 atomic_t xmt_fcp_read_rsp
;
58 atomic_t xmt_fcp_read
;
59 atomic_t xmt_fcp_write
;
62 /* Stats counters - lpfc_nvmet_xmt_fcp_op_cmp */
63 atomic_t xmt_fcp_rsp_cmpl
;
64 atomic_t xmt_fcp_rsp_error
;
65 atomic_t xmt_fcp_rsp_drop
;
68 /* Stats counters - lpfc_nvmet_xmt_fcp_abort */
69 atomic_t xmt_fcp_abort
;
70 atomic_t xmt_fcp_abort_cmpl
;
71 atomic_t xmt_abort_sol
;
72 atomic_t xmt_abort_unsol
;
73 atomic_t xmt_abort_rsp
;
74 atomic_t xmt_abort_rsp_error
;
77 struct lpfc_nvmet_rcv_ctx
{
79 struct nvmefc_tgt_ls_req ls_req
;
80 struct nvmefc_tgt_fcp_req fcp_req
;
82 struct list_head list
;
83 struct lpfc_hba
*phba
;
84 struct lpfc_iocbq
*wqeq
;
85 struct lpfc_iocbq
*abort_wqeq
;
86 dma_addr_t txrdy_phys
;
87 spinlock_t ctxlock
; /* protect flag access */
97 #define LPFC_NVMET_STE_LS_RCV 1
98 #define LPFC_NVMET_STE_LS_ABORT 2
99 #define LPFC_NVMET_STE_LS_RSP 3
100 #define LPFC_NVMET_STE_RCV 4
101 #define LPFC_NVMET_STE_DATA 5
102 #define LPFC_NVMET_STE_ABORT 6
103 #define LPFC_NVMET_STE_DONE 7
104 #define LPFC_NVMET_STE_FREE 0xff
106 #define LPFC_NVMET_IO_INP 0x1 /* IO is in progress on exchange */
107 #define LPFC_NVMET_ABORT_OP 0x2 /* Abort WQE issued on exchange */
108 #define LPFC_NVMET_XBUSY 0x4 /* XB bit set on IO cmpl */
109 #define LPFC_NVMET_CTX_RLS 0x8 /* ctx free requested */
110 #define LPFC_NVMET_ABTS_RCV 0x10 /* ABTS received on exchange */
111 struct rqb_dmabuf
*rqb_buffer
;
112 struct lpfc_nvmet_ctxbuf
*ctxbuf
;
114 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
116 uint64_t ts_cmd_nvme
;
117 uint64_t ts_nvme_data
;
118 uint64_t ts_data_wqput
;
119 uint64_t ts_isr_data
;
120 uint64_t ts_data_nvme
;
121 uint64_t ts_nvme_status
;
122 uint64_t ts_status_wqput
;
123 uint64_t ts_isr_status
;
124 uint64_t ts_status_nvme
;