mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-10-31 08:08:51 +01:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
670
drivers/infiniband/ulp/iser/iscsi_iser.h
Normal file
670
drivers/infiniband/ulp/iser/iscsi_iser.h
Normal file
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@ -0,0 +1,670 @@
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/*
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* iSER transport for the Open iSCSI Initiator & iSER transport internals
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*
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* Copyright (C) 2004 Dmitry Yusupov
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* Copyright (C) 2004 Alex Aizman
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* Copyright (C) 2005 Mike Christie
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* based on code maintained by open-iscsi@googlegroups.com
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*
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* Copyright (c) 2004, 2005, 2006 Voltaire, Inc. All rights reserved.
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* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
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* Copyright (c) 2013-2014 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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||||
* licenses. You may choose to be licensed under the terms of the GNU
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||||
* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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||||
* without modification, are permitted provided that the following
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||||
* conditions are met:
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*
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||||
* - Redistributions of source code must retain the above
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||||
* copyright notice, this list of conditions and the following
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||||
* disclaimer.
|
||||
*
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||||
* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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||||
* disclaimer in the documentation and/or other materials
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||||
* provided with the distribution.
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*
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||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __ISCSI_ISER_H__
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#define __ISCSI_ISER_H__
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#include <linux/types.h>
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#include <linux/net.h>
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#include <linux/printk.h>
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#include <scsi/libiscsi.h>
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#include <scsi/scsi_transport_iscsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <linux/interrupt.h>
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#include <linux/wait.h>
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#include <linux/sched.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/dma-mapping.h>
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#include <linux/mutex.h>
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#include <linux/mempool.h>
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#include <linux/uio.h>
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <linux/in6.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_fmr_pool.h>
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#include <rdma/rdma_cm.h>
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#define DRV_NAME "iser"
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#define PFX DRV_NAME ": "
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#define DRV_VER "1.4.8"
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#define iser_dbg(fmt, arg...) \
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do { \
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if (iser_debug_level > 2) \
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printk(KERN_DEBUG PFX "%s: " fmt,\
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__func__ , ## arg); \
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} while (0)
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#define iser_warn(fmt, arg...) \
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do { \
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if (iser_debug_level > 0) \
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pr_warn(PFX "%s: " fmt, \
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__func__ , ## arg); \
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} while (0)
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#define iser_info(fmt, arg...) \
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do { \
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if (iser_debug_level > 1) \
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pr_info(PFX "%s: " fmt, \
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__func__ , ## arg); \
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} while (0)
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#define iser_err(fmt, arg...) \
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do { \
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printk(KERN_ERR PFX "%s: " fmt, \
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__func__ , ## arg); \
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} while (0)
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#define SHIFT_4K 12
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#define SIZE_4K (1ULL << SHIFT_4K)
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#define MASK_4K (~(SIZE_4K-1))
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/* support up to 512KB in one RDMA */
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#define ISCSI_ISER_SG_TABLESIZE (0x80000 >> SHIFT_4K)
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#define ISER_DEF_XMIT_CMDS_DEFAULT 512
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#if ISCSI_DEF_XMIT_CMDS_MAX > ISER_DEF_XMIT_CMDS_DEFAULT
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#define ISER_DEF_XMIT_CMDS_MAX ISCSI_DEF_XMIT_CMDS_MAX
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#else
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#define ISER_DEF_XMIT_CMDS_MAX ISER_DEF_XMIT_CMDS_DEFAULT
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#endif
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#define ISER_DEF_CMD_PER_LUN ISER_DEF_XMIT_CMDS_MAX
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/* QP settings */
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/* Maximal bounds on received asynchronous PDUs */
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#define ISER_MAX_RX_MISC_PDUS 4 /* NOOP_IN(2) , ASYNC_EVENT(2) */
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#define ISER_MAX_TX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1), *
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* SCSI_TMFUNC(2), LOGOUT(1) */
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#define ISER_QP_MAX_RECV_DTOS (ISER_DEF_XMIT_CMDS_MAX)
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#define ISER_MIN_POSTED_RX (ISER_DEF_XMIT_CMDS_MAX >> 2)
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/* the max TX (send) WR supported by the iSER QP is defined by *
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* max_send_wr = T * (1 + D) + C ; D is how many inflight dataouts we expect *
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* to have at max for SCSI command. The tx posting & completion handling code *
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* supports -EAGAIN scheme where tx is suspended till the QP has room for more *
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* send WR. D=8 comes from 64K/8K */
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#define ISER_INFLIGHT_DATAOUTS 8
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#define ISER_QP_MAX_REQ_DTOS (ISER_DEF_XMIT_CMDS_MAX * \
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(1 + ISER_INFLIGHT_DATAOUTS) + \
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ISER_MAX_TX_MISC_PDUS + \
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ISER_MAX_RX_MISC_PDUS)
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/* Max registration work requests per command */
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#define ISER_MAX_REG_WR_PER_CMD 5
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/* For Signature we don't support DATAOUTs so no need to make room for them */
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#define ISER_QP_SIG_MAX_REQ_DTOS (ISER_DEF_XMIT_CMDS_MAX * \
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(1 + ISER_MAX_REG_WR_PER_CMD) + \
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ISER_MAX_TX_MISC_PDUS + \
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ISER_MAX_RX_MISC_PDUS)
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#define ISER_WC_BATCH_COUNT 16
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#define ISER_SIGNAL_CMD_COUNT 32
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#define ISER_VER 0x10
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#define ISER_WSV 0x08
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#define ISER_RSV 0x04
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#define ISER_FASTREG_LI_WRID 0xffffffffffffffffULL
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#define ISER_BEACON_WRID 0xfffffffffffffffeULL
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/**
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* struct iser_hdr - iSER header
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*
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* @flags: flags support (zbva, remote_inv)
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* @rsvd: reserved
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* @write_stag: write rkey
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* @write_va: write virtual address
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* @reaf_stag: read rkey
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* @read_va: read virtual address
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*/
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struct iser_hdr {
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u8 flags;
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u8 rsvd[3];
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__be32 write_stag;
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__be64 write_va;
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__be32 read_stag;
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__be64 read_va;
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} __attribute__((packed));
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#define ISER_ZBVA_NOT_SUPPORTED 0x80
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#define ISER_SEND_W_INV_NOT_SUPPORTED 0x40
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struct iser_cm_hdr {
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u8 flags;
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u8 rsvd[3];
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} __packed;
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/* Constant PDU lengths calculations */
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#define ISER_HEADERS_LEN (sizeof(struct iser_hdr) + sizeof(struct iscsi_hdr))
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#define ISER_RECV_DATA_SEG_LEN 128
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#define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN)
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#define ISER_RX_LOGIN_SIZE (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN)
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/* Length of an object name string */
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#define ISER_OBJECT_NAME_SIZE 64
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enum iser_conn_state {
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ISER_CONN_INIT, /* descriptor allocd, no conn */
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ISER_CONN_PENDING, /* in the process of being established */
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ISER_CONN_UP, /* up and running */
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ISER_CONN_TERMINATING, /* in the process of being terminated */
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ISER_CONN_DOWN, /* shut down */
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ISER_CONN_STATES_NUM
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};
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enum iser_task_status {
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ISER_TASK_STATUS_INIT = 0,
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ISER_TASK_STATUS_STARTED,
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ISER_TASK_STATUS_COMPLETED
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};
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enum iser_data_dir {
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ISER_DIR_IN = 0, /* to initiator */
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ISER_DIR_OUT, /* from initiator */
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ISER_DIRS_NUM
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};
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/**
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* struct iser_data_buf - iSER data buffer
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*
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* @buf: pointer to the sg list
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* @size: num entries of this sg
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* @data_len: total beffer byte len
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* @dma_nents: returned by dma_map_sg
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* @copy_buf: allocated copy buf for SGs unaligned
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* for rdma which are copied
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* @sg_single: SG-ified clone of a non SG SC or
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* unaligned SG
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*/
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struct iser_data_buf {
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void *buf;
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unsigned int size;
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unsigned long data_len;
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unsigned int dma_nents;
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char *copy_buf;
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struct scatterlist sg_single;
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};
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/* fwd declarations */
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struct iser_device;
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struct iscsi_iser_task;
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struct iscsi_endpoint;
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/**
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* struct iser_mem_reg - iSER memory registration info
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*
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* @lkey: MR local key
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* @rkey: MR remote key
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* @va: MR start address (buffer va)
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* @len: MR length
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* @mem_h: pointer to registration context (FMR/Fastreg)
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* @is_mr: indicates weather we registered the buffer
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*/
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struct iser_mem_reg {
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u32 lkey;
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u32 rkey;
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u64 va;
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u64 len;
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void *mem_h;
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int is_mr;
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};
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/**
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* struct iser_regd_buf - iSER buffer registration desc
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*
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* @reg: memory registration info
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* @virt_addr: virtual address of buffer
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* @device: reference to iser device
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* @direction: dma direction (for dma_unmap)
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* @data_size: data buffer size in bytes
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*/
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struct iser_regd_buf {
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struct iser_mem_reg reg;
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void *virt_addr;
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struct iser_device *device;
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enum dma_data_direction direction;
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unsigned int data_size;
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};
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enum iser_desc_type {
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ISCSI_TX_CONTROL ,
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ISCSI_TX_SCSI_COMMAND,
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ISCSI_TX_DATAOUT
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};
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/**
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* struct iser_tx_desc - iSER TX descriptor (for send wr_id)
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*
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* @iser_header: iser header
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* @iscsi_header: iscsi header
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* @type: command/control/dataout
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* @dam_addr: header buffer dma_address
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* @tx_sg: sg[0] points to iser/iscsi headers
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* sg[1] optionally points to either of immediate data
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* unsolicited data-out or control
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* @num_sge: number sges used on this TX task
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*/
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struct iser_tx_desc {
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struct iser_hdr iser_header;
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struct iscsi_hdr iscsi_header;
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enum iser_desc_type type;
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u64 dma_addr;
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struct ib_sge tx_sg[2];
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int num_sge;
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};
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#define ISER_RX_PAD_SIZE (256 - (ISER_RX_PAYLOAD_SIZE + \
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sizeof(u64) + sizeof(struct ib_sge)))
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/**
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* struct iser_rx_desc - iSER RX descriptor (for recv wr_id)
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*
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* @iser_header: iser header
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* @iscsi_header: iscsi header
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* @data: received data segment
|
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* @dma_addr: receive buffer dma address
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* @rx_sg: ib_sge of receive buffer
|
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* @pad: for sense data TODO: Modify to maximum sense length supported
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*/
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struct iser_rx_desc {
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struct iser_hdr iser_header;
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struct iscsi_hdr iscsi_header;
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char data[ISER_RECV_DATA_SEG_LEN];
|
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u64 dma_addr;
|
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struct ib_sge rx_sg;
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char pad[ISER_RX_PAD_SIZE];
|
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} __attribute__((packed));
|
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|
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#define ISER_MAX_CQ 4
|
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|
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struct iser_conn;
|
||||
struct ib_conn;
|
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struct iscsi_iser_task;
|
||||
|
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/**
|
||||
* struct iser_comp - iSER completion context
|
||||
*
|
||||
* @device: pointer to device handle
|
||||
* @cq: completion queue
|
||||
* @wcs: work completion array
|
||||
* @tasklet: Tasklet handle
|
||||
* @active_qps: Number of active QPs attached
|
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* to completion context
|
||||
*/
|
||||
struct iser_comp {
|
||||
struct iser_device *device;
|
||||
struct ib_cq *cq;
|
||||
struct ib_wc wcs[ISER_WC_BATCH_COUNT];
|
||||
struct tasklet_struct tasklet;
|
||||
int active_qps;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iser_device - iSER device handle
|
||||
*
|
||||
* @ib_device: RDMA device
|
||||
* @pd: Protection Domain for this device
|
||||
* @dev_attr: Device attributes container
|
||||
* @mr: Global DMA memory region
|
||||
* @event_handler: IB events handle routine
|
||||
* @ig_list: entry in devices list
|
||||
* @refcount: Reference counter, dominated by open iser connections
|
||||
* @comps_used: Number of completion contexts used, Min between online
|
||||
* cpus and device max completion vectors
|
||||
* @comps: Dinamically allocated array of completion handlers
|
||||
* Memory registration pool Function pointers (FMR or Fastreg):
|
||||
* @iser_alloc_rdma_reg_res: Allocation of memory regions pool
|
||||
* @iser_free_rdma_reg_res: Free of memory regions pool
|
||||
* @iser_reg_rdma_mem: Memory registration routine
|
||||
* @iser_unreg_rdma_mem: Memory deregistration routine
|
||||
*/
|
||||
struct iser_device {
|
||||
struct ib_device *ib_device;
|
||||
struct ib_pd *pd;
|
||||
struct ib_device_attr dev_attr;
|
||||
struct ib_mr *mr;
|
||||
struct ib_event_handler event_handler;
|
||||
struct list_head ig_list;
|
||||
int refcount;
|
||||
int comps_used;
|
||||
struct iser_comp comps[ISER_MAX_CQ];
|
||||
int (*iser_alloc_rdma_reg_res)(struct ib_conn *ib_conn,
|
||||
unsigned cmds_max);
|
||||
void (*iser_free_rdma_reg_res)(struct ib_conn *ib_conn);
|
||||
int (*iser_reg_rdma_mem)(struct iscsi_iser_task *iser_task,
|
||||
enum iser_data_dir cmd_dir);
|
||||
void (*iser_unreg_rdma_mem)(struct iscsi_iser_task *iser_task,
|
||||
enum iser_data_dir cmd_dir);
|
||||
};
|
||||
|
||||
#define ISER_CHECK_GUARD 0xc0
|
||||
#define ISER_CHECK_REFTAG 0x0f
|
||||
#define ISER_CHECK_APPTAG 0x30
|
||||
|
||||
enum iser_reg_indicator {
|
||||
ISER_DATA_KEY_VALID = 1 << 0,
|
||||
ISER_PROT_KEY_VALID = 1 << 1,
|
||||
ISER_SIG_KEY_VALID = 1 << 2,
|
||||
ISER_FASTREG_PROTECTED = 1 << 3,
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iser_pi_context - Protection information context
|
||||
*
|
||||
* @prot_mr: protection memory region
|
||||
* @prot_frpl: protection fastreg page list
|
||||
* @sig_mr: signature feature enabled memory region
|
||||
*/
|
||||
struct iser_pi_context {
|
||||
struct ib_mr *prot_mr;
|
||||
struct ib_fast_reg_page_list *prot_frpl;
|
||||
struct ib_mr *sig_mr;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct fast_reg_descriptor - Fast registration descriptor
|
||||
*
|
||||
* @list: entry in connection fastreg pool
|
||||
* @data_mr: data memory region
|
||||
* @data_frpl: data fastreg page list
|
||||
* @pi_ctx: protection information context
|
||||
* @reg_indicators: fast registration indicators
|
||||
*/
|
||||
struct fast_reg_descriptor {
|
||||
struct list_head list;
|
||||
struct ib_mr *data_mr;
|
||||
struct ib_fast_reg_page_list *data_frpl;
|
||||
struct iser_pi_context *pi_ctx;
|
||||
u8 reg_indicators;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct ib_conn - Infiniband related objects
|
||||
*
|
||||
* @cma_id: rdma_cm connection maneger handle
|
||||
* @qp: Connection Queue-pair
|
||||
* @post_recv_buf_count: post receive counter
|
||||
* @sig_count: send work request signal count
|
||||
* @rx_wr: receive work request for batch posts
|
||||
* @device: reference to iser device
|
||||
* @comp: iser completion context
|
||||
* @pi_support: Indicate device T10-PI support
|
||||
* @beacon: beacon send wr to signal all flush errors were drained
|
||||
* @flush_comp: completes when all connection completions consumed
|
||||
* @lock: protects fmr/fastreg pool
|
||||
* @union.fmr:
|
||||
* @pool: FMR pool for fast registrations
|
||||
* @page_vec: page vector to hold mapped commands pages
|
||||
* used for registration
|
||||
* @union.fastreg:
|
||||
* @pool: Fast registration descriptors pool for fast
|
||||
* registrations
|
||||
* @pool_size: Size of pool
|
||||
*/
|
||||
struct ib_conn {
|
||||
struct rdma_cm_id *cma_id;
|
||||
struct ib_qp *qp;
|
||||
int post_recv_buf_count;
|
||||
u8 sig_count;
|
||||
struct ib_recv_wr rx_wr[ISER_MIN_POSTED_RX];
|
||||
struct iser_device *device;
|
||||
struct iser_comp *comp;
|
||||
bool pi_support;
|
||||
struct ib_send_wr beacon;
|
||||
struct completion flush_comp;
|
||||
spinlock_t lock;
|
||||
union {
|
||||
struct {
|
||||
struct ib_fmr_pool *pool;
|
||||
struct iser_page_vec *page_vec;
|
||||
} fmr;
|
||||
struct {
|
||||
struct list_head pool;
|
||||
int pool_size;
|
||||
} fastreg;
|
||||
};
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iser_conn - iSER connection context
|
||||
*
|
||||
* @ib_conn: connection RDMA resources
|
||||
* @iscsi_conn: link to matching iscsi connection
|
||||
* @ep: transport handle
|
||||
* @state: connection logical state
|
||||
* @qp_max_recv_dtos: maximum number of data outs, corresponds
|
||||
* to max number of post recvs
|
||||
* @qp_max_recv_dtos_mask: (qp_max_recv_dtos - 1)
|
||||
* @min_posted_rx: (qp_max_recv_dtos >> 2)
|
||||
* @name: connection peer portal
|
||||
* @release_work: deffered work for release job
|
||||
* @state_mutex: protects iser onnection state
|
||||
* @stop_completion: conn_stop completion
|
||||
* @ib_completion: RDMA cleanup completion
|
||||
* @up_completion: connection establishment completed
|
||||
* (state is ISER_CONN_UP)
|
||||
* @conn_list: entry in ig conn list
|
||||
* @login_buf: login data buffer (stores login parameters)
|
||||
* @login_req_buf: login request buffer
|
||||
* @login_req_dma: login request buffer dma address
|
||||
* @login_resp_buf: login response buffer
|
||||
* @login_resp_dma: login response buffer dma address
|
||||
* @rx_desc_head: head of rx_descs cyclic buffer
|
||||
* @rx_descs: rx buffers array (cyclic buffer)
|
||||
* @num_rx_descs: number of rx descriptors
|
||||
*/
|
||||
struct iser_conn {
|
||||
struct ib_conn ib_conn;
|
||||
struct iscsi_conn *iscsi_conn;
|
||||
struct iscsi_endpoint *ep;
|
||||
enum iser_conn_state state;
|
||||
unsigned qp_max_recv_dtos;
|
||||
unsigned qp_max_recv_dtos_mask;
|
||||
unsigned min_posted_rx;
|
||||
char name[ISER_OBJECT_NAME_SIZE];
|
||||
struct work_struct release_work;
|
||||
struct mutex state_mutex;
|
||||
struct completion stop_completion;
|
||||
struct completion ib_completion;
|
||||
struct completion up_completion;
|
||||
struct list_head conn_list;
|
||||
|
||||
char *login_buf;
|
||||
char *login_req_buf, *login_resp_buf;
|
||||
u64 login_req_dma, login_resp_dma;
|
||||
unsigned int rx_desc_head;
|
||||
struct iser_rx_desc *rx_descs;
|
||||
u32 num_rx_descs;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iscsi_iser_task - iser task context
|
||||
*
|
||||
* @desc: TX descriptor
|
||||
* @iser_conn: link to iser connection
|
||||
* @status: current task status
|
||||
* @sc: link to scsi command
|
||||
* @command_sent: indicate if command was sent
|
||||
* @dir: iser data direction
|
||||
* @rdma_regd: task rdma registration desc
|
||||
* @data: iser data buffer desc
|
||||
* @data_copy: iser data copy buffer desc (bounce buffer)
|
||||
* @prot: iser protection buffer desc
|
||||
* @prot_copy: iser protection copy buffer desc (bounce buffer)
|
||||
*/
|
||||
struct iscsi_iser_task {
|
||||
struct iser_tx_desc desc;
|
||||
struct iser_conn *iser_conn;
|
||||
enum iser_task_status status;
|
||||
struct scsi_cmnd *sc;
|
||||
int command_sent;
|
||||
int dir[ISER_DIRS_NUM];
|
||||
struct iser_regd_buf rdma_regd[ISER_DIRS_NUM];
|
||||
struct iser_data_buf data[ISER_DIRS_NUM];
|
||||
struct iser_data_buf data_copy[ISER_DIRS_NUM];
|
||||
struct iser_data_buf prot[ISER_DIRS_NUM];
|
||||
struct iser_data_buf prot_copy[ISER_DIRS_NUM];
|
||||
};
|
||||
|
||||
struct iser_page_vec {
|
||||
u64 *pages;
|
||||
int length;
|
||||
int offset;
|
||||
int data_size;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct iser_global: iSER global context
|
||||
*
|
||||
* @device_list_mutex: protects device_list
|
||||
* @device_list: iser devices global list
|
||||
* @connlist_mutex: protects connlist
|
||||
* @connlist: iser connections global list
|
||||
* @desc_cache: kmem cache for tx dataout
|
||||
*/
|
||||
struct iser_global {
|
||||
struct mutex device_list_mutex;
|
||||
struct list_head device_list;
|
||||
struct mutex connlist_mutex;
|
||||
struct list_head connlist;
|
||||
struct kmem_cache *desc_cache;
|
||||
};
|
||||
|
||||
extern struct iser_global ig;
|
||||
extern int iser_debug_level;
|
||||
extern bool iser_pi_enable;
|
||||
extern int iser_pi_guard;
|
||||
|
||||
int iser_send_control(struct iscsi_conn *conn,
|
||||
struct iscsi_task *task);
|
||||
|
||||
int iser_send_command(struct iscsi_conn *conn,
|
||||
struct iscsi_task *task);
|
||||
|
||||
int iser_send_data_out(struct iscsi_conn *conn,
|
||||
struct iscsi_task *task,
|
||||
struct iscsi_data *hdr);
|
||||
|
||||
void iscsi_iser_recv(struct iscsi_conn *conn,
|
||||
struct iscsi_hdr *hdr,
|
||||
char *rx_data,
|
||||
int rx_data_len);
|
||||
|
||||
void iser_conn_init(struct iser_conn *iser_conn);
|
||||
|
||||
void iser_conn_release(struct iser_conn *iser_conn);
|
||||
|
||||
int iser_conn_terminate(struct iser_conn *iser_conn);
|
||||
|
||||
void iser_release_work(struct work_struct *work);
|
||||
|
||||
void iser_rcv_completion(struct iser_rx_desc *desc,
|
||||
unsigned long dto_xfer_len,
|
||||
struct ib_conn *ib_conn);
|
||||
|
||||
void iser_snd_completion(struct iser_tx_desc *desc,
|
||||
struct ib_conn *ib_conn);
|
||||
|
||||
void iser_task_rdma_init(struct iscsi_iser_task *task);
|
||||
|
||||
void iser_task_rdma_finalize(struct iscsi_iser_task *task);
|
||||
|
||||
void iser_free_rx_descriptors(struct iser_conn *iser_conn);
|
||||
|
||||
void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
|
||||
struct iser_data_buf *mem,
|
||||
struct iser_data_buf *mem_copy,
|
||||
enum iser_data_dir cmd_dir);
|
||||
|
||||
int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *task,
|
||||
enum iser_data_dir cmd_dir);
|
||||
int iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *task,
|
||||
enum iser_data_dir cmd_dir);
|
||||
|
||||
int iser_connect(struct iser_conn *iser_conn,
|
||||
struct sockaddr *src_addr,
|
||||
struct sockaddr *dst_addr,
|
||||
int non_blocking);
|
||||
|
||||
int iser_reg_page_vec(struct ib_conn *ib_conn,
|
||||
struct iser_page_vec *page_vec,
|
||||
struct iser_mem_reg *mem_reg);
|
||||
|
||||
void iser_unreg_mem_fmr(struct iscsi_iser_task *iser_task,
|
||||
enum iser_data_dir cmd_dir);
|
||||
void iser_unreg_mem_fastreg(struct iscsi_iser_task *iser_task,
|
||||
enum iser_data_dir cmd_dir);
|
||||
|
||||
int iser_post_recvl(struct iser_conn *iser_conn);
|
||||
int iser_post_recvm(struct iser_conn *iser_conn, int count);
|
||||
int iser_post_send(struct ib_conn *ib_conn, struct iser_tx_desc *tx_desc,
|
||||
bool signal);
|
||||
|
||||
int iser_dma_map_task_data(struct iscsi_iser_task *iser_task,
|
||||
struct iser_data_buf *data,
|
||||
enum iser_data_dir iser_dir,
|
||||
enum dma_data_direction dma_dir);
|
||||
|
||||
void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task,
|
||||
struct iser_data_buf *data,
|
||||
enum dma_data_direction dir);
|
||||
|
||||
int iser_initialize_task_headers(struct iscsi_task *task,
|
||||
struct iser_tx_desc *tx_desc);
|
||||
int iser_alloc_rx_descriptors(struct iser_conn *iser_conn,
|
||||
struct iscsi_session *session);
|
||||
int iser_create_fmr_pool(struct ib_conn *ib_conn, unsigned cmds_max);
|
||||
void iser_free_fmr_pool(struct ib_conn *ib_conn);
|
||||
int iser_create_fastreg_pool(struct ib_conn *ib_conn, unsigned cmds_max);
|
||||
void iser_free_fastreg_pool(struct ib_conn *ib_conn);
|
||||
u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
|
||||
enum iser_data_dir cmd_dir, sector_t *sector);
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue