1969 lines
55 KiB
C
1969 lines
55 KiB
C
/*******************************************************************************
|
|
* This file contains tcm implementation using v4 configfs fabric infrastructure
|
|
* for QLogic target mode HBAs
|
|
*
|
|
* ?? Copyright 2010-2011 RisingTide Systems LLC.
|
|
*
|
|
* Licensed to the Linux Foundation under the General Public License (GPL)
|
|
* version 2.
|
|
*
|
|
* Author: Nicholas A. Bellinger <nab@risingtidesystems.com>
|
|
*
|
|
* tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
|
|
* the TCM_FC / Open-FCoE.org fabric module.
|
|
*
|
|
* Copyright (c) 2010 Cisco Systems, Inc
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
****************************************************************************/
|
|
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <generated/utsrelease.h>
|
|
#include <linux/utsname.h>
|
|
#include <linux/init.h>
|
|
#include <linux/list.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/kthread.h>
|
|
#include <linux/types.h>
|
|
#include <linux/string.h>
|
|
#include <linux/configfs.h>
|
|
#include <linux/ctype.h>
|
|
#include <asm/unaligned.h>
|
|
#include <scsi/scsi.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <scsi/scsi_device.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
#include <target/target_core_base.h>
|
|
#include <target/target_core_fabric.h>
|
|
#include <target/target_core_fabric_configfs.h>
|
|
#include <target/target_core_configfs.h>
|
|
#include <target/configfs_macros.h>
|
|
|
|
#include "qla_def.h"
|
|
#include "qla_target.h"
|
|
#include "tcm_qla2xxx.h"
|
|
|
|
struct workqueue_struct *tcm_qla2xxx_free_wq;
|
|
struct workqueue_struct *tcm_qla2xxx_cmd_wq;
|
|
|
|
static int tcm_qla2xxx_check_true(struct se_portal_group *se_tpg)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int tcm_qla2xxx_check_false(struct se_portal_group *se_tpg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Parse WWN.
|
|
* If strict, we require lower-case hex and colon separators to be sure
|
|
* the name is the same as what would be generated by ft_format_wwn()
|
|
* so the name and wwn are mapped one-to-one.
|
|
*/
|
|
static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
|
|
{
|
|
const char *cp;
|
|
char c;
|
|
u32 nibble;
|
|
u32 byte = 0;
|
|
u32 pos = 0;
|
|
u32 err;
|
|
|
|
*wwn = 0;
|
|
for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
|
|
c = *cp;
|
|
if (c == '\n' && cp[1] == '\0')
|
|
continue;
|
|
if (strict && pos++ == 2 && byte++ < 7) {
|
|
pos = 0;
|
|
if (c == ':')
|
|
continue;
|
|
err = 1;
|
|
goto fail;
|
|
}
|
|
if (c == '\0') {
|
|
err = 2;
|
|
if (strict && byte != 8)
|
|
goto fail;
|
|
return cp - name;
|
|
}
|
|
err = 3;
|
|
if (isdigit(c))
|
|
nibble = c - '0';
|
|
else if (isxdigit(c) && (islower(c) || !strict))
|
|
nibble = tolower(c) - 'a' + 10;
|
|
else
|
|
goto fail;
|
|
*wwn = (*wwn << 4) | nibble;
|
|
}
|
|
err = 4;
|
|
fail:
|
|
pr_debug("err %u len %zu pos %u byte %u\n",
|
|
err, cp - name, pos, byte);
|
|
return -1;
|
|
}
|
|
|
|
static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
|
|
{
|
|
u8 b[8];
|
|
|
|
put_unaligned_be64(wwn, b);
|
|
return snprintf(buf, len,
|
|
"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
|
|
b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
|
|
}
|
|
|
|
static char *tcm_qla2xxx_get_fabric_name(void)
|
|
{
|
|
return "qla2xxx";
|
|
}
|
|
|
|
/*
|
|
* From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
|
|
*/
|
|
static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
|
|
{
|
|
unsigned int i, j;
|
|
u8 wwn[8];
|
|
|
|
memset(wwn, 0, sizeof(wwn));
|
|
|
|
/* Validate and store the new name */
|
|
for (i = 0, j = 0; i < 16; i++) {
|
|
int value;
|
|
|
|
value = hex_to_bin(*ns++);
|
|
if (value >= 0)
|
|
j = (j << 4) | value;
|
|
else
|
|
return -EINVAL;
|
|
|
|
if (i % 2) {
|
|
wwn[i/2] = j & 0xff;
|
|
j = 0;
|
|
}
|
|
}
|
|
|
|
*nm = wwn_to_u64(wwn);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This parsing logic follows drivers/scsi/scsi_transport_fc.c:
|
|
* store_fc_host_vport_create()
|
|
*/
|
|
static int tcm_qla2xxx_npiv_parse_wwn(
|
|
const char *name,
|
|
size_t count,
|
|
u64 *wwpn,
|
|
u64 *wwnn)
|
|
{
|
|
unsigned int cnt = count;
|
|
int rc;
|
|
|
|
*wwpn = 0;
|
|
*wwnn = 0;
|
|
|
|
/* count may include a LF at end of string */
|
|
if (name[cnt-1] == '\n')
|
|
cnt--;
|
|
|
|
/* validate we have enough characters for WWPN */
|
|
if ((cnt != (16+1+16)) || (name[16] != ':'))
|
|
return -EINVAL;
|
|
|
|
rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
|
|
if (rc != 0)
|
|
return rc;
|
|
|
|
rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
|
|
if (rc != 0)
|
|
return rc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t tcm_qla2xxx_npiv_format_wwn(char *buf, size_t len,
|
|
u64 wwpn, u64 wwnn)
|
|
{
|
|
u8 b[8], b2[8];
|
|
|
|
put_unaligned_be64(wwpn, b);
|
|
put_unaligned_be64(wwnn, b2);
|
|
return snprintf(buf, len,
|
|
"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x,"
|
|
"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
|
|
b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7],
|
|
b2[0], b2[1], b2[2], b2[3], b2[4], b2[5], b2[6], b2[7]);
|
|
}
|
|
|
|
static char *tcm_qla2xxx_npiv_get_fabric_name(void)
|
|
{
|
|
return "qla2xxx_npiv";
|
|
}
|
|
|
|
static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
u8 proto_id;
|
|
|
|
switch (lport->lport_proto_id) {
|
|
case SCSI_PROTOCOL_FCP:
|
|
default:
|
|
proto_id = fc_get_fabric_proto_ident(se_tpg);
|
|
break;
|
|
}
|
|
|
|
return proto_id;
|
|
}
|
|
|
|
static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
|
|
return lport->lport_naa_name;
|
|
}
|
|
|
|
static char *tcm_qla2xxx_npiv_get_fabric_wwn(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
|
|
return &lport->lport_npiv_name[0];
|
|
}
|
|
|
|
static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
return tpg->lport_tpgt;
|
|
}
|
|
|
|
static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static u32 tcm_qla2xxx_get_pr_transport_id(
|
|
struct se_portal_group *se_tpg,
|
|
struct se_node_acl *se_nacl,
|
|
struct t10_pr_registration *pr_reg,
|
|
int *format_code,
|
|
unsigned char *buf)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
int ret = 0;
|
|
|
|
switch (lport->lport_proto_id) {
|
|
case SCSI_PROTOCOL_FCP:
|
|
default:
|
|
ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
|
|
format_code, buf);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static u32 tcm_qla2xxx_get_pr_transport_id_len(
|
|
struct se_portal_group *se_tpg,
|
|
struct se_node_acl *se_nacl,
|
|
struct t10_pr_registration *pr_reg,
|
|
int *format_code)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
int ret = 0;
|
|
|
|
switch (lport->lport_proto_id) {
|
|
case SCSI_PROTOCOL_FCP:
|
|
default:
|
|
ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
|
|
format_code);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static char *tcm_qla2xxx_parse_pr_out_transport_id(
|
|
struct se_portal_group *se_tpg,
|
|
const char *buf,
|
|
u32 *out_tid_len,
|
|
char **port_nexus_ptr)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
char *tid = NULL;
|
|
|
|
switch (lport->lport_proto_id) {
|
|
case SCSI_PROTOCOL_FCP:
|
|
default:
|
|
tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
|
|
port_nexus_ptr);
|
|
break;
|
|
}
|
|
|
|
return tid;
|
|
}
|
|
|
|
static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
|
|
return QLA_TPG_ATTRIB(tpg)->generate_node_acls;
|
|
}
|
|
|
|
static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
|
|
return QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls;
|
|
}
|
|
|
|
static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
|
|
return QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect;
|
|
}
|
|
|
|
static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
|
|
return QLA_TPG_ATTRIB(tpg)->prod_mode_write_protect;
|
|
}
|
|
|
|
static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl(
|
|
struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_nacl *nacl;
|
|
|
|
nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL);
|
|
if (!nacl) {
|
|
pr_err("Unable to allocate struct tcm_qla2xxx_nacl\n");
|
|
return NULL;
|
|
}
|
|
|
|
return &nacl->se_node_acl;
|
|
}
|
|
|
|
static void tcm_qla2xxx_release_fabric_acl(
|
|
struct se_portal_group *se_tpg,
|
|
struct se_node_acl *se_nacl)
|
|
{
|
|
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
|
|
struct tcm_qla2xxx_nacl, se_node_acl);
|
|
kfree(nacl);
|
|
}
|
|
|
|
static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
|
|
return tpg->lport_tpgt;
|
|
}
|
|
|
|
static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
|
|
{
|
|
struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
|
|
struct qla_tgt_mgmt_cmd, free_work);
|
|
|
|
transport_generic_free_cmd(&mcmd->se_cmd, 0);
|
|
}
|
|
|
|
/*
|
|
* Called from qla_target_template->free_mcmd(), and will call
|
|
* tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops
|
|
* release callback. qla_hw_data->hardware_lock is expected to be held
|
|
*/
|
|
static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
|
|
{
|
|
INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
|
|
queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
|
|
}
|
|
|
|
static void tcm_qla2xxx_complete_free(struct work_struct *work)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
|
|
|
|
transport_generic_free_cmd(&cmd->se_cmd, 0);
|
|
}
|
|
|
|
/*
|
|
* Called from qla_target_template->free_cmd(), and will call
|
|
* tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops
|
|
* release callback. qla_hw_data->hardware_lock is expected to be held
|
|
*/
|
|
static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
|
|
{
|
|
INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
|
|
queue_work(tcm_qla2xxx_free_wq, &cmd->work);
|
|
}
|
|
|
|
/*
|
|
* Called from struct target_core_fabric_ops->check_stop_free() context
|
|
*/
|
|
static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
|
|
{
|
|
return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
|
|
}
|
|
|
|
/* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
|
|
* fabric descriptor @se_cmd command to release
|
|
*/
|
|
static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
|
|
{
|
|
struct qla_tgt_cmd *cmd;
|
|
|
|
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
|
|
struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
|
|
struct qla_tgt_mgmt_cmd, se_cmd);
|
|
qlt_free_mcmd(mcmd);
|
|
return;
|
|
}
|
|
|
|
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
|
|
qlt_free_cmd(cmd);
|
|
}
|
|
|
|
static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess)
|
|
{
|
|
struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
|
|
struct scsi_qla_host *vha;
|
|
unsigned long flags;
|
|
|
|
BUG_ON(!sess);
|
|
vha = sess->vha;
|
|
|
|
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
|
|
target_sess_cmd_list_set_waiting(se_sess);
|
|
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void tcm_qla2xxx_close_session(struct se_session *se_sess)
|
|
{
|
|
struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
|
|
struct scsi_qla_host *vha;
|
|
unsigned long flags;
|
|
|
|
BUG_ON(!sess);
|
|
vha = sess->vha;
|
|
|
|
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
|
|
qlt_unreg_sess(sess);
|
|
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
|
|
}
|
|
|
|
static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The LIO target core uses DMA_TO_DEVICE to mean that data is going
|
|
* to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean
|
|
* that data is coming from the target (eg handling a READ). However,
|
|
* this is just the opposite of what we have to tell the DMA mapping
|
|
* layer -- eg when handling a READ, the HBA will have to DMA the data
|
|
* out of memory so it can send it to the initiator, which means we
|
|
* need to use DMA_TO_DEVICE when we map the data.
|
|
*/
|
|
static enum dma_data_direction tcm_qla2xxx_mapping_dir(struct se_cmd *se_cmd)
|
|
{
|
|
if (se_cmd->se_cmd_flags & SCF_BIDI)
|
|
return DMA_BIDIRECTIONAL;
|
|
|
|
switch (se_cmd->data_direction) {
|
|
case DMA_TO_DEVICE:
|
|
return DMA_FROM_DEVICE;
|
|
case DMA_FROM_DEVICE:
|
|
return DMA_TO_DEVICE;
|
|
case DMA_NONE:
|
|
default:
|
|
return DMA_NONE;
|
|
}
|
|
}
|
|
|
|
static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(se_cmd,
|
|
struct qla_tgt_cmd, se_cmd);
|
|
|
|
cmd->bufflen = se_cmd->data_length;
|
|
cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
|
|
|
|
cmd->sg_cnt = se_cmd->t_data_nents;
|
|
cmd->sg = se_cmd->t_data_sg;
|
|
|
|
/*
|
|
* qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup
|
|
* the SGL mappings into PCIe memory for incoming FCP WRITE data.
|
|
*/
|
|
return qlt_rdy_to_xfer(cmd);
|
|
}
|
|
|
|
static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd)
|
|
{
|
|
unsigned long flags;
|
|
/*
|
|
* Check for WRITE_PENDING status to determine if we need to wait for
|
|
* CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data().
|
|
*/
|
|
spin_lock_irqsave(&se_cmd->t_state_lock, flags);
|
|
if (se_cmd->t_state == TRANSPORT_WRITE_PENDING ||
|
|
se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) {
|
|
spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
|
|
wait_for_completion_timeout(&se_cmd->t_transport_stop_comp,
|
|
3000);
|
|
return 0;
|
|
}
|
|
spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(se_cmd,
|
|
struct qla_tgt_cmd, se_cmd);
|
|
|
|
return cmd->tag;
|
|
}
|
|
|
|
static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Called from process context in qla_target.c:qlt_do_work() code
|
|
*/
|
|
static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
|
|
unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
|
|
int data_dir, int bidi)
|
|
{
|
|
struct se_cmd *se_cmd = &cmd->se_cmd;
|
|
struct se_session *se_sess;
|
|
struct qla_tgt_sess *sess;
|
|
int flags = TARGET_SCF_ACK_KREF;
|
|
|
|
if (bidi)
|
|
flags |= TARGET_SCF_BIDI_OP;
|
|
|
|
sess = cmd->sess;
|
|
if (!sess) {
|
|
pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
se_sess = sess->se_sess;
|
|
if (!se_sess) {
|
|
pr_err("Unable to locate active struct se_session\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
|
|
cmd->unpacked_lun, data_length, fcp_task_attr,
|
|
data_dir, flags);
|
|
}
|
|
|
|
static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
|
|
|
|
/*
|
|
* Ensure that the complete FCP WRITE payload has been received.
|
|
* Otherwise return an exception via CHECK_CONDITION status.
|
|
*/
|
|
if (!cmd->write_data_transferred) {
|
|
/*
|
|
* Check if se_cmd has already been aborted via LUN_RESET, and
|
|
* waiting upon completion in tcm_qla2xxx_write_pending_status()
|
|
*/
|
|
if (cmd->se_cmd.transport_state & CMD_T_ABORTED) {
|
|
complete(&cmd->se_cmd.t_transport_stop_comp);
|
|
return;
|
|
}
|
|
|
|
transport_generic_request_failure(&cmd->se_cmd,
|
|
TCM_CHECK_CONDITION_ABORT_CMD);
|
|
return;
|
|
}
|
|
|
|
return target_execute_cmd(&cmd->se_cmd);
|
|
}
|
|
|
|
/*
|
|
* Called from qla_target.c:qlt_do_ctio_completion()
|
|
*/
|
|
static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
|
|
{
|
|
INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
|
|
queue_work(tcm_qla2xxx_free_wq, &cmd->work);
|
|
}
|
|
|
|
/*
|
|
* Called from qla_target.c:qlt_issue_task_mgmt()
|
|
*/
|
|
static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun,
|
|
uint8_t tmr_func, uint32_t tag)
|
|
{
|
|
struct qla_tgt_sess *sess = mcmd->sess;
|
|
struct se_cmd *se_cmd = &mcmd->se_cmd;
|
|
|
|
return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
|
|
tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
|
|
}
|
|
|
|
static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(se_cmd,
|
|
struct qla_tgt_cmd, se_cmd);
|
|
|
|
cmd->bufflen = se_cmd->data_length;
|
|
cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
|
|
cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED);
|
|
|
|
cmd->sg_cnt = se_cmd->t_data_nents;
|
|
cmd->sg = se_cmd->t_data_sg;
|
|
cmd->offset = 0;
|
|
|
|
/*
|
|
* Now queue completed DATA_IN the qla2xxx LLD and response ring
|
|
*/
|
|
return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
|
|
se_cmd->scsi_status);
|
|
}
|
|
|
|
static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(se_cmd,
|
|
struct qla_tgt_cmd, se_cmd);
|
|
int xmit_type = QLA_TGT_XMIT_STATUS;
|
|
|
|
cmd->bufflen = se_cmd->data_length;
|
|
cmd->sg = NULL;
|
|
cmd->sg_cnt = 0;
|
|
cmd->offset = 0;
|
|
cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
|
|
cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED);
|
|
|
|
if (se_cmd->data_direction == DMA_FROM_DEVICE) {
|
|
/*
|
|
* For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen
|
|
* for qla_tgt_xmit_response LLD code
|
|
*/
|
|
if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
|
|
se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
|
|
se_cmd->residual_count = 0;
|
|
}
|
|
se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
|
|
se_cmd->residual_count += se_cmd->data_length;
|
|
|
|
cmd->bufflen = 0;
|
|
}
|
|
/*
|
|
* Now queue status response to qla2xxx LLD code and response ring
|
|
*/
|
|
return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
|
|
}
|
|
|
|
static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
|
|
{
|
|
struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
|
|
struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
|
|
struct qla_tgt_mgmt_cmd, se_cmd);
|
|
|
|
pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
|
|
mcmd, se_tmr->function, se_tmr->response);
|
|
/*
|
|
* Do translation between TCM TM response codes and
|
|
* QLA2xxx FC TM response codes.
|
|
*/
|
|
switch (se_tmr->response) {
|
|
case TMR_FUNCTION_COMPLETE:
|
|
mcmd->fc_tm_rsp = FC_TM_SUCCESS;
|
|
break;
|
|
case TMR_TASK_DOES_NOT_EXIST:
|
|
mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
|
|
break;
|
|
case TMR_FUNCTION_REJECTED:
|
|
mcmd->fc_tm_rsp = FC_TM_REJECT;
|
|
break;
|
|
case TMR_LUN_DOES_NOT_EXIST:
|
|
default:
|
|
mcmd->fc_tm_rsp = FC_TM_FAILED;
|
|
break;
|
|
}
|
|
/*
|
|
* Queue the TM response to QLA2xxx LLD to build a
|
|
* CTIO response packet.
|
|
*/
|
|
qlt_xmit_tm_rsp(mcmd);
|
|
}
|
|
|
|
/* Local pointer to allocated TCM configfs fabric module */
|
|
struct target_fabric_configfs *tcm_qla2xxx_fabric_configfs;
|
|
struct target_fabric_configfs *tcm_qla2xxx_npiv_fabric_configfs;
|
|
|
|
static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
|
|
struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *);
|
|
/*
|
|
* Expected to be called with struct qla_hw_data->hardware_lock held
|
|
*/
|
|
static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess)
|
|
{
|
|
struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
|
|
struct se_portal_group *se_tpg = se_nacl->se_tpg;
|
|
struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
|
|
struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
|
|
struct tcm_qla2xxx_lport, lport_wwn);
|
|
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
|
|
struct tcm_qla2xxx_nacl, se_node_acl);
|
|
void *node;
|
|
|
|
pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
|
|
|
|
node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
|
|
WARN_ON(node && (node != se_nacl));
|
|
|
|
pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
|
|
se_nacl, nacl->nport_wwnn, nacl->nport_id);
|
|
/*
|
|
* Now clear the se_nacl and session pointers from our HW lport lookup
|
|
* table mapping for this initiator's fabric S_ID and LOOP_ID entries.
|
|
*
|
|
* This is done ahead of callbacks into tcm_qla2xxx_free_session() ->
|
|
* target_wait_for_sess_cmds() before the session waits for outstanding
|
|
* I/O to complete, to avoid a race between session shutdown execution
|
|
* and incoming ATIOs or TMRs picking up a stale se_node_act reference.
|
|
*/
|
|
tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
|
|
}
|
|
|
|
static void tcm_qla2xxx_release_session(struct kref *kref)
|
|
{
|
|
struct se_session *se_sess = container_of(kref,
|
|
struct se_session, sess_kref);
|
|
|
|
qlt_unreg_sess(se_sess->fabric_sess_ptr);
|
|
}
|
|
|
|
static void tcm_qla2xxx_put_session(struct se_session *se_sess)
|
|
{
|
|
struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
|
|
struct qla_hw_data *ha = sess->vha->hw;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
}
|
|
|
|
static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess)
|
|
{
|
|
assert_spin_locked(&sess->vha->hw->hardware_lock);
|
|
kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session);
|
|
}
|
|
|
|
static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess)
|
|
{
|
|
assert_spin_locked(&sess->vha->hw->hardware_lock);
|
|
target_sess_cmd_list_set_waiting(sess->se_sess);
|
|
}
|
|
|
|
static struct se_node_acl *tcm_qla2xxx_make_nodeacl(
|
|
struct se_portal_group *se_tpg,
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct se_node_acl *se_nacl, *se_nacl_new;
|
|
struct tcm_qla2xxx_nacl *nacl;
|
|
u64 wwnn;
|
|
u32 qla2xxx_nexus_depth;
|
|
|
|
if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg);
|
|
if (!se_nacl_new)
|
|
return ERR_PTR(-ENOMEM);
|
|
/* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */
|
|
qla2xxx_nexus_depth = 1;
|
|
|
|
/*
|
|
* se_nacl_new may be released by core_tpg_add_initiator_node_acl()
|
|
* when converting a NodeACL from demo mode -> explict
|
|
*/
|
|
se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
|
|
name, qla2xxx_nexus_depth);
|
|
if (IS_ERR(se_nacl)) {
|
|
tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new);
|
|
return se_nacl;
|
|
}
|
|
/*
|
|
* Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN
|
|
*/
|
|
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
|
|
nacl->nport_wwnn = wwnn;
|
|
tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
|
|
|
|
return se_nacl;
|
|
}
|
|
|
|
static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl)
|
|
{
|
|
struct se_portal_group *se_tpg = se_acl->se_tpg;
|
|
struct tcm_qla2xxx_nacl *nacl = container_of(se_acl,
|
|
struct tcm_qla2xxx_nacl, se_node_acl);
|
|
|
|
core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1);
|
|
kfree(nacl);
|
|
}
|
|
|
|
/* Start items for tcm_qla2xxx_tpg_attrib_cit */
|
|
|
|
#define DEF_QLA_TPG_ATTRIB(name) \
|
|
\
|
|
static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \
|
|
struct se_portal_group *se_tpg, \
|
|
char *page) \
|
|
{ \
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
|
|
struct tcm_qla2xxx_tpg, se_tpg); \
|
|
\
|
|
return sprintf(page, "%u\n", QLA_TPG_ATTRIB(tpg)->name); \
|
|
} \
|
|
\
|
|
static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \
|
|
struct se_portal_group *se_tpg, \
|
|
const char *page, \
|
|
size_t count) \
|
|
{ \
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
|
|
struct tcm_qla2xxx_tpg, se_tpg); \
|
|
unsigned long val; \
|
|
int ret; \
|
|
\
|
|
ret = kstrtoul(page, 0, &val); \
|
|
if (ret < 0) { \
|
|
pr_err("kstrtoul() failed with" \
|
|
" ret: %d\n", ret); \
|
|
return -EINVAL; \
|
|
} \
|
|
ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \
|
|
\
|
|
return (!ret) ? count : -EINVAL; \
|
|
}
|
|
|
|
#define DEF_QLA_TPG_ATTR_BOOL(_name) \
|
|
\
|
|
static int tcm_qla2xxx_set_attrib_##_name( \
|
|
struct tcm_qla2xxx_tpg *tpg, \
|
|
unsigned long val) \
|
|
{ \
|
|
struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
|
|
\
|
|
if ((val != 0) && (val != 1)) { \
|
|
pr_err("Illegal boolean value %lu\n", val); \
|
|
return -EINVAL; \
|
|
} \
|
|
\
|
|
a->_name = val; \
|
|
return 0; \
|
|
}
|
|
|
|
#define QLA_TPG_ATTR(_name, _mode) \
|
|
TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode);
|
|
|
|
/*
|
|
* Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls
|
|
*/
|
|
DEF_QLA_TPG_ATTR_BOOL(generate_node_acls);
|
|
DEF_QLA_TPG_ATTRIB(generate_node_acls);
|
|
QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
|
|
|
|
/*
|
|
Define tcm_qla2xxx_attrib_s_cache_dynamic_acls
|
|
*/
|
|
DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls);
|
|
DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
|
|
QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
|
|
|
|
/*
|
|
* Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect
|
|
*/
|
|
DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect);
|
|
DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
|
|
QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
|
|
|
|
/*
|
|
* Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect
|
|
*/
|
|
DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect);
|
|
DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
|
|
QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
|
|
|
|
static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
|
|
&tcm_qla2xxx_tpg_attrib_generate_node_acls.attr,
|
|
&tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr,
|
|
&tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr,
|
|
&tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr,
|
|
NULL,
|
|
};
|
|
|
|
/* End items for tcm_qla2xxx_tpg_attrib_cit */
|
|
|
|
static ssize_t tcm_qla2xxx_tpg_show_enable(
|
|
struct se_portal_group *se_tpg,
|
|
char *page)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
|
|
return snprintf(page, PAGE_SIZE, "%d\n",
|
|
atomic_read(&tpg->lport_tpg_enabled));
|
|
}
|
|
|
|
static ssize_t tcm_qla2xxx_tpg_store_enable(
|
|
struct se_portal_group *se_tpg,
|
|
const char *page,
|
|
size_t count)
|
|
{
|
|
struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
|
|
struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
|
|
struct tcm_qla2xxx_lport, lport_wwn);
|
|
struct scsi_qla_host *vha = lport->qla_vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
unsigned long op;
|
|
int rc;
|
|
|
|
rc = kstrtoul(page, 0, &op);
|
|
if (rc < 0) {
|
|
pr_err("kstrtoul() returned %d\n", rc);
|
|
return -EINVAL;
|
|
}
|
|
if ((op != 1) && (op != 0)) {
|
|
pr_err("Illegal value for tpg_enable: %lu\n", op);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (op) {
|
|
atomic_set(&tpg->lport_tpg_enabled, 1);
|
|
qlt_enable_vha(vha);
|
|
} else {
|
|
if (!ha->tgt.qla_tgt) {
|
|
pr_err("truct qla_hw_data *ha->tgt.qla_tgt is NULL\n");
|
|
return -ENODEV;
|
|
}
|
|
atomic_set(&tpg->lport_tpg_enabled, 0);
|
|
qlt_stop_phase1(ha->tgt.qla_tgt);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR);
|
|
|
|
static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
|
|
&tcm_qla2xxx_tpg_enable.attr,
|
|
NULL,
|
|
};
|
|
|
|
static struct se_portal_group *tcm_qla2xxx_make_tpg(
|
|
struct se_wwn *wwn,
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct tcm_qla2xxx_lport *lport = container_of(wwn,
|
|
struct tcm_qla2xxx_lport, lport_wwn);
|
|
struct tcm_qla2xxx_tpg *tpg;
|
|
unsigned long tpgt;
|
|
int ret;
|
|
|
|
if (strstr(name, "tpgt_") != name)
|
|
return ERR_PTR(-EINVAL);
|
|
if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (!lport->qla_npiv_vp && (tpgt != 1)) {
|
|
pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
|
|
if (!tpg) {
|
|
pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
tpg->lport = lport;
|
|
tpg->lport_tpgt = tpgt;
|
|
/*
|
|
* By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
|
|
* NodeACLs
|
|
*/
|
|
QLA_TPG_ATTRIB(tpg)->generate_node_acls = 1;
|
|
QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect = 1;
|
|
QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls = 1;
|
|
|
|
ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
|
|
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
|
|
if (ret < 0) {
|
|
kfree(tpg);
|
|
return NULL;
|
|
}
|
|
/*
|
|
* Setup local TPG=1 pointer for non NPIV mode.
|
|
*/
|
|
if (lport->qla_npiv_vp == NULL)
|
|
lport->tpg_1 = tpg;
|
|
|
|
return &tpg->se_tpg;
|
|
}
|
|
|
|
static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
|
|
{
|
|
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
|
|
struct tcm_qla2xxx_tpg, se_tpg);
|
|
struct tcm_qla2xxx_lport *lport = tpg->lport;
|
|
struct scsi_qla_host *vha = lport->qla_vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
/*
|
|
* Call into qla2x_target.c LLD logic to shutdown the active
|
|
* FC Nexuses and disable target mode operation for this qla_hw_data
|
|
*/
|
|
if (ha->tgt.qla_tgt && !ha->tgt.qla_tgt->tgt_stop)
|
|
qlt_stop_phase1(ha->tgt.qla_tgt);
|
|
|
|
core_tpg_deregister(se_tpg);
|
|
/*
|
|
* Clear local TPG=1 pointer for non NPIV mode.
|
|
*/
|
|
if (lport->qla_npiv_vp == NULL)
|
|
lport->tpg_1 = NULL;
|
|
|
|
kfree(tpg);
|
|
}
|
|
|
|
static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
|
|
struct se_wwn *wwn,
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct tcm_qla2xxx_lport *lport = container_of(wwn,
|
|
struct tcm_qla2xxx_lport, lport_wwn);
|
|
struct tcm_qla2xxx_tpg *tpg;
|
|
unsigned long tpgt;
|
|
int ret;
|
|
|
|
if (strstr(name, "tpgt_") != name)
|
|
return ERR_PTR(-EINVAL);
|
|
if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
|
|
if (!tpg) {
|
|
pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
tpg->lport = lport;
|
|
tpg->lport_tpgt = tpgt;
|
|
|
|
ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops, wwn,
|
|
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
|
|
if (ret < 0) {
|
|
kfree(tpg);
|
|
return NULL;
|
|
}
|
|
return &tpg->se_tpg;
|
|
}
|
|
|
|
/*
|
|
* Expected to be called with struct qla_hw_data->hardware_lock held
|
|
*/
|
|
static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id(
|
|
scsi_qla_host_t *vha,
|
|
const uint8_t *s_id)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct tcm_qla2xxx_lport *lport;
|
|
struct se_node_acl *se_nacl;
|
|
struct tcm_qla2xxx_nacl *nacl;
|
|
u32 key;
|
|
|
|
lport = ha->tgt.target_lport_ptr;
|
|
if (!lport) {
|
|
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
|
|
dump_stack();
|
|
return NULL;
|
|
}
|
|
|
|
key = (((unsigned long)s_id[0] << 16) |
|
|
((unsigned long)s_id[1] << 8) |
|
|
(unsigned long)s_id[2]);
|
|
pr_debug("find_sess_by_s_id: 0x%06x\n", key);
|
|
|
|
se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
|
|
if (!se_nacl) {
|
|
pr_debug("Unable to locate s_id: 0x%06x\n", key);
|
|
return NULL;
|
|
}
|
|
pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
|
|
se_nacl, se_nacl->initiatorname);
|
|
|
|
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
|
|
if (!nacl->qla_tgt_sess) {
|
|
pr_err("Unable to locate struct qla_tgt_sess\n");
|
|
return NULL;
|
|
}
|
|
|
|
return nacl->qla_tgt_sess;
|
|
}
|
|
|
|
/*
|
|
* Expected to be called with struct qla_hw_data->hardware_lock held
|
|
*/
|
|
static void tcm_qla2xxx_set_sess_by_s_id(
|
|
struct tcm_qla2xxx_lport *lport,
|
|
struct se_node_acl *new_se_nacl,
|
|
struct tcm_qla2xxx_nacl *nacl,
|
|
struct se_session *se_sess,
|
|
struct qla_tgt_sess *qla_tgt_sess,
|
|
uint8_t *s_id)
|
|
{
|
|
u32 key;
|
|
void *slot;
|
|
int rc;
|
|
|
|
key = (((unsigned long)s_id[0] << 16) |
|
|
((unsigned long)s_id[1] << 8) |
|
|
(unsigned long)s_id[2]);
|
|
pr_debug("set_sess_by_s_id: %06x\n", key);
|
|
|
|
slot = btree_lookup32(&lport->lport_fcport_map, key);
|
|
if (!slot) {
|
|
if (new_se_nacl) {
|
|
pr_debug("Setting up new fc_port entry to new_se_nacl\n");
|
|
nacl->nport_id = key;
|
|
rc = btree_insert32(&lport->lport_fcport_map, key,
|
|
new_se_nacl, GFP_ATOMIC);
|
|
if (rc)
|
|
printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
|
|
(int)key);
|
|
} else {
|
|
pr_debug("Wiping nonexisting fc_port entry\n");
|
|
}
|
|
|
|
qla_tgt_sess->se_sess = se_sess;
|
|
nacl->qla_tgt_sess = qla_tgt_sess;
|
|
return;
|
|
}
|
|
|
|
if (nacl->qla_tgt_sess) {
|
|
if (new_se_nacl == NULL) {
|
|
pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n");
|
|
btree_remove32(&lport->lport_fcport_map, key);
|
|
nacl->qla_tgt_sess = NULL;
|
|
return;
|
|
}
|
|
pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n");
|
|
btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
|
|
qla_tgt_sess->se_sess = se_sess;
|
|
nacl->qla_tgt_sess = qla_tgt_sess;
|
|
return;
|
|
}
|
|
|
|
if (new_se_nacl == NULL) {
|
|
pr_debug("Clearing existing fc_port entry\n");
|
|
btree_remove32(&lport->lport_fcport_map, key);
|
|
return;
|
|
}
|
|
|
|
pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n");
|
|
btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
|
|
qla_tgt_sess->se_sess = se_sess;
|
|
nacl->qla_tgt_sess = qla_tgt_sess;
|
|
|
|
pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n",
|
|
nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname);
|
|
}
|
|
|
|
/*
|
|
* Expected to be called with struct qla_hw_data->hardware_lock held
|
|
*/
|
|
static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id(
|
|
scsi_qla_host_t *vha,
|
|
const uint16_t loop_id)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct tcm_qla2xxx_lport *lport;
|
|
struct se_node_acl *se_nacl;
|
|
struct tcm_qla2xxx_nacl *nacl;
|
|
struct tcm_qla2xxx_fc_loopid *fc_loopid;
|
|
|
|
lport = ha->tgt.target_lport_ptr;
|
|
if (!lport) {
|
|
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
|
|
dump_stack();
|
|
return NULL;
|
|
}
|
|
|
|
pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
|
|
|
|
fc_loopid = lport->lport_loopid_map + loop_id;
|
|
se_nacl = fc_loopid->se_nacl;
|
|
if (!se_nacl) {
|
|
pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
|
|
loop_id);
|
|
return NULL;
|
|
}
|
|
|
|
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
|
|
|
|
if (!nacl->qla_tgt_sess) {
|
|
pr_err("Unable to locate struct qla_tgt_sess\n");
|
|
return NULL;
|
|
}
|
|
|
|
return nacl->qla_tgt_sess;
|
|
}
|
|
|
|
/*
|
|
* Expected to be called with struct qla_hw_data->hardware_lock held
|
|
*/
|
|
static void tcm_qla2xxx_set_sess_by_loop_id(
|
|
struct tcm_qla2xxx_lport *lport,
|
|
struct se_node_acl *new_se_nacl,
|
|
struct tcm_qla2xxx_nacl *nacl,
|
|
struct se_session *se_sess,
|
|
struct qla_tgt_sess *qla_tgt_sess,
|
|
uint16_t loop_id)
|
|
{
|
|
struct se_node_acl *saved_nacl;
|
|
struct tcm_qla2xxx_fc_loopid *fc_loopid;
|
|
|
|
pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
|
|
|
|
fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
|
|
lport->lport_loopid_map)[loop_id];
|
|
|
|
saved_nacl = fc_loopid->se_nacl;
|
|
if (!saved_nacl) {
|
|
pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
|
|
fc_loopid->se_nacl = new_se_nacl;
|
|
if (qla_tgt_sess->se_sess != se_sess)
|
|
qla_tgt_sess->se_sess = se_sess;
|
|
if (nacl->qla_tgt_sess != qla_tgt_sess)
|
|
nacl->qla_tgt_sess = qla_tgt_sess;
|
|
return;
|
|
}
|
|
|
|
if (nacl->qla_tgt_sess) {
|
|
if (new_se_nacl == NULL) {
|
|
pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
|
|
fc_loopid->se_nacl = NULL;
|
|
nacl->qla_tgt_sess = NULL;
|
|
return;
|
|
}
|
|
|
|
pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
|
|
fc_loopid->se_nacl = new_se_nacl;
|
|
if (qla_tgt_sess->se_sess != se_sess)
|
|
qla_tgt_sess->se_sess = se_sess;
|
|
if (nacl->qla_tgt_sess != qla_tgt_sess)
|
|
nacl->qla_tgt_sess = qla_tgt_sess;
|
|
return;
|
|
}
|
|
|
|
if (new_se_nacl == NULL) {
|
|
pr_debug("Clearing fc_loopid->se_nacl\n");
|
|
fc_loopid->se_nacl = NULL;
|
|
return;
|
|
}
|
|
|
|
pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n");
|
|
fc_loopid->se_nacl = new_se_nacl;
|
|
if (qla_tgt_sess->se_sess != se_sess)
|
|
qla_tgt_sess->se_sess = se_sess;
|
|
if (nacl->qla_tgt_sess != qla_tgt_sess)
|
|
nacl->qla_tgt_sess = qla_tgt_sess;
|
|
|
|
pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n",
|
|
nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname);
|
|
}
|
|
|
|
/*
|
|
* Should always be called with qla_hw_data->hardware_lock held.
|
|
*/
|
|
static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
|
|
struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess)
|
|
{
|
|
struct se_session *se_sess = sess->se_sess;
|
|
unsigned char be_sid[3];
|
|
|
|
be_sid[0] = sess->s_id.b.domain;
|
|
be_sid[1] = sess->s_id.b.area;
|
|
be_sid[2] = sess->s_id.b.al_pa;
|
|
|
|
tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
|
|
sess, be_sid);
|
|
tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
|
|
sess, sess->loop_id);
|
|
}
|
|
|
|
static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess)
|
|
{
|
|
struct qla_tgt *tgt = sess->tgt;
|
|
struct qla_hw_data *ha = tgt->ha;
|
|
struct se_session *se_sess;
|
|
struct se_node_acl *se_nacl;
|
|
struct tcm_qla2xxx_lport *lport;
|
|
struct tcm_qla2xxx_nacl *nacl;
|
|
|
|
BUG_ON(in_interrupt());
|
|
|
|
se_sess = sess->se_sess;
|
|
if (!se_sess) {
|
|
pr_err("struct qla_tgt_sess->se_sess is NULL\n");
|
|
dump_stack();
|
|
return;
|
|
}
|
|
se_nacl = se_sess->se_node_acl;
|
|
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
|
|
|
|
lport = ha->tgt.target_lport_ptr;
|
|
if (!lport) {
|
|
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
|
|
dump_stack();
|
|
return;
|
|
}
|
|
target_wait_for_sess_cmds(se_sess);
|
|
|
|
transport_deregister_session_configfs(sess->se_sess);
|
|
transport_deregister_session(sess->se_sess);
|
|
}
|
|
|
|
/*
|
|
* Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl()
|
|
* to locate struct se_node_acl
|
|
*/
|
|
static int tcm_qla2xxx_check_initiator_node_acl(
|
|
scsi_qla_host_t *vha,
|
|
unsigned char *fc_wwpn,
|
|
void *qla_tgt_sess,
|
|
uint8_t *s_id,
|
|
uint16_t loop_id)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct tcm_qla2xxx_lport *lport;
|
|
struct tcm_qla2xxx_tpg *tpg;
|
|
struct tcm_qla2xxx_nacl *nacl;
|
|
struct se_portal_group *se_tpg;
|
|
struct se_node_acl *se_nacl;
|
|
struct se_session *se_sess;
|
|
struct qla_tgt_sess *sess = qla_tgt_sess;
|
|
unsigned char port_name[36];
|
|
unsigned long flags;
|
|
|
|
lport = ha->tgt.target_lport_ptr;
|
|
if (!lport) {
|
|
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
|
|
dump_stack();
|
|
return -EINVAL;
|
|
}
|
|
/*
|
|
* Locate the TPG=1 reference..
|
|
*/
|
|
tpg = lport->tpg_1;
|
|
if (!tpg) {
|
|
pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n");
|
|
return -EINVAL;
|
|
}
|
|
se_tpg = &tpg->se_tpg;
|
|
|
|
se_sess = transport_init_session();
|
|
if (IS_ERR(se_sess)) {
|
|
pr_err("Unable to initialize struct se_session\n");
|
|
return PTR_ERR(se_sess);
|
|
}
|
|
/*
|
|
* Format the FCP Initiator port_name into colon seperated values to
|
|
* match the format by tcm_qla2xxx explict ConfigFS NodeACLs.
|
|
*/
|
|
memset(&port_name, 0, 36);
|
|
snprintf(port_name, 36, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
|
|
fc_wwpn[0], fc_wwpn[1], fc_wwpn[2], fc_wwpn[3], fc_wwpn[4],
|
|
fc_wwpn[5], fc_wwpn[6], fc_wwpn[7]);
|
|
/*
|
|
* Locate our struct se_node_acl either from an explict NodeACL created
|
|
* via ConfigFS, or via running in TPG demo mode.
|
|
*/
|
|
se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg,
|
|
port_name);
|
|
if (!se_sess->se_node_acl) {
|
|
transport_free_session(se_sess);
|
|
return -EINVAL;
|
|
}
|
|
se_nacl = se_sess->se_node_acl;
|
|
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
|
|
/*
|
|
* And now setup the new se_nacl and session pointers into our HW lport
|
|
* mappings for fabric S_ID and LOOP_ID.
|
|
*/
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess,
|
|
qla_tgt_sess, s_id);
|
|
tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess,
|
|
qla_tgt_sess, loop_id);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
/*
|
|
* Finally register the new FC Nexus with TCM
|
|
*/
|
|
__transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id,
|
|
uint16_t loop_id, bool conf_compl_supported)
|
|
{
|
|
struct qla_tgt *tgt = sess->tgt;
|
|
struct qla_hw_data *ha = tgt->ha;
|
|
struct tcm_qla2xxx_lport *lport = ha->tgt.target_lport_ptr;
|
|
struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
|
|
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
|
|
struct tcm_qla2xxx_nacl, se_node_acl);
|
|
u32 key;
|
|
|
|
|
|
if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24)
|
|
pr_info("Updating session %p from port %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
|
|
sess,
|
|
sess->port_name[0], sess->port_name[1],
|
|
sess->port_name[2], sess->port_name[3],
|
|
sess->port_name[4], sess->port_name[5],
|
|
sess->port_name[6], sess->port_name[7],
|
|
sess->loop_id, loop_id,
|
|
sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa,
|
|
s_id.b.domain, s_id.b.area, s_id.b.al_pa);
|
|
|
|
if (sess->loop_id != loop_id) {
|
|
/*
|
|
* Because we can shuffle loop IDs around and we
|
|
* update different sessions non-atomically, we might
|
|
* have overwritten this session's old loop ID
|
|
* already, and we might end up overwriting some other
|
|
* session that will be updated later. So we have to
|
|
* be extra careful and we can't warn about those things...
|
|
*/
|
|
if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
|
|
lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
|
|
|
|
lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
|
|
|
|
sess->loop_id = loop_id;
|
|
}
|
|
|
|
if (sess->s_id.b24 != s_id.b24) {
|
|
key = (((u32) sess->s_id.b.domain << 16) |
|
|
((u32) sess->s_id.b.area << 8) |
|
|
((u32) sess->s_id.b.al_pa));
|
|
|
|
if (btree_lookup32(&lport->lport_fcport_map, key))
|
|
WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl,
|
|
"Found wrong se_nacl when updating s_id %x:%x:%x\n",
|
|
sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa);
|
|
else
|
|
WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
|
|
sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa);
|
|
|
|
key = (((u32) s_id.b.domain << 16) |
|
|
((u32) s_id.b.area << 8) |
|
|
((u32) s_id.b.al_pa));
|
|
|
|
if (btree_lookup32(&lport->lport_fcport_map, key)) {
|
|
WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
|
|
s_id.b.domain, s_id.b.area, s_id.b.al_pa);
|
|
btree_update32(&lport->lport_fcport_map, key, se_nacl);
|
|
} else {
|
|
btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC);
|
|
}
|
|
|
|
sess->s_id = s_id;
|
|
nacl->nport_id = key;
|
|
}
|
|
|
|
sess->conf_compl_supported = conf_compl_supported;
|
|
}
|
|
|
|
/*
|
|
* Calls into tcm_qla2xxx used by qla2xxx LLD I/O path.
|
|
*/
|
|
static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
|
|
.handle_cmd = tcm_qla2xxx_handle_cmd,
|
|
.handle_data = tcm_qla2xxx_handle_data,
|
|
.handle_tmr = tcm_qla2xxx_handle_tmr,
|
|
.free_cmd = tcm_qla2xxx_free_cmd,
|
|
.free_mcmd = tcm_qla2xxx_free_mcmd,
|
|
.free_session = tcm_qla2xxx_free_session,
|
|
.update_sess = tcm_qla2xxx_update_sess,
|
|
.check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
|
|
.find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
|
|
.find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
|
|
.clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
|
|
.put_sess = tcm_qla2xxx_put_sess,
|
|
.shutdown_sess = tcm_qla2xxx_shutdown_sess,
|
|
};
|
|
|
|
static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
|
|
{
|
|
int rc;
|
|
|
|
rc = btree_init32(&lport->lport_fcport_map);
|
|
if (rc) {
|
|
pr_err("Unable to initialize lport->lport_fcport_map btree\n");
|
|
return rc;
|
|
}
|
|
|
|
lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) *
|
|
65536);
|
|
if (!lport->lport_loopid_map) {
|
|
pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
|
|
sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
|
|
btree_destroy32(&lport->lport_fcport_map);
|
|
return -ENOMEM;
|
|
}
|
|
memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid)
|
|
* 65536);
|
|
pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
|
|
sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
|
|
return 0;
|
|
}
|
|
|
|
static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct tcm_qla2xxx_lport *lport;
|
|
/*
|
|
* Setup local pointer to vha, NPIV VP pointer (if present) and
|
|
* vha->tcm_lport pointer
|
|
*/
|
|
lport = (struct tcm_qla2xxx_lport *)ha->tgt.target_lport_ptr;
|
|
lport->qla_vha = vha;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct se_wwn *tcm_qla2xxx_make_lport(
|
|
struct target_fabric_configfs *tf,
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct tcm_qla2xxx_lport *lport;
|
|
u64 wwpn;
|
|
int ret = -ENODEV;
|
|
|
|
if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
|
|
if (!lport) {
|
|
pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
lport->lport_wwpn = wwpn;
|
|
tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
|
|
wwpn);
|
|
sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
|
|
|
|
ret = tcm_qla2xxx_init_lport(lport);
|
|
if (ret != 0)
|
|
goto out;
|
|
|
|
ret = qlt_lport_register(&tcm_qla2xxx_template, wwpn,
|
|
tcm_qla2xxx_lport_register_cb, lport);
|
|
if (ret != 0)
|
|
goto out_lport;
|
|
|
|
return &lport->lport_wwn;
|
|
out_lport:
|
|
vfree(lport->lport_loopid_map);
|
|
btree_destroy32(&lport->lport_fcport_map);
|
|
out:
|
|
kfree(lport);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
|
|
{
|
|
struct tcm_qla2xxx_lport *lport = container_of(wwn,
|
|
struct tcm_qla2xxx_lport, lport_wwn);
|
|
struct scsi_qla_host *vha = lport->qla_vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct se_node_acl *node;
|
|
u32 key = 0;
|
|
|
|
/*
|
|
* Call into qla2x_target.c LLD logic to complete the
|
|
* shutdown of struct qla_tgt after the call to
|
|
* qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above..
|
|
*/
|
|
if (ha->tgt.qla_tgt && !ha->tgt.qla_tgt->tgt_stopped)
|
|
qlt_stop_phase2(ha->tgt.qla_tgt);
|
|
|
|
qlt_lport_deregister(vha);
|
|
|
|
vfree(lport->lport_loopid_map);
|
|
btree_for_each_safe32(&lport->lport_fcport_map, key, node)
|
|
btree_remove32(&lport->lport_fcport_map, key);
|
|
btree_destroy32(&lport->lport_fcport_map);
|
|
kfree(lport);
|
|
}
|
|
|
|
static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
|
|
struct target_fabric_configfs *tf,
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct tcm_qla2xxx_lport *lport;
|
|
u64 npiv_wwpn, npiv_wwnn;
|
|
int ret;
|
|
|
|
if (tcm_qla2xxx_npiv_parse_wwn(name, strlen(name)+1,
|
|
&npiv_wwpn, &npiv_wwnn) < 0)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
|
|
if (!lport) {
|
|
pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
lport->lport_npiv_wwpn = npiv_wwpn;
|
|
lport->lport_npiv_wwnn = npiv_wwnn;
|
|
tcm_qla2xxx_npiv_format_wwn(&lport->lport_npiv_name[0],
|
|
TCM_QLA2XXX_NAMELEN, npiv_wwpn, npiv_wwnn);
|
|
sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
|
|
|
|
/* FIXME: tcm_qla2xxx_npiv_make_lport */
|
|
ret = -ENOSYS;
|
|
if (ret != 0)
|
|
goto out;
|
|
|
|
return &lport->lport_wwn;
|
|
out:
|
|
kfree(lport);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
|
|
{
|
|
struct tcm_qla2xxx_lport *lport = container_of(wwn,
|
|
struct tcm_qla2xxx_lport, lport_wwn);
|
|
struct scsi_qla_host *vha = lport->qla_vha;
|
|
struct Scsi_Host *sh = vha->host;
|
|
/*
|
|
* Notify libfc that we want to release the lport->npiv_vport
|
|
*/
|
|
fc_vport_terminate(lport->npiv_vport);
|
|
|
|
scsi_host_put(sh);
|
|
kfree(lport);
|
|
}
|
|
|
|
|
|
static ssize_t tcm_qla2xxx_wwn_show_attr_version(
|
|
struct target_fabric_configfs *tf,
|
|
char *page)
|
|
{
|
|
return sprintf(page,
|
|
"TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on "
|
|
UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname,
|
|
utsname()->machine);
|
|
}
|
|
|
|
TF_WWN_ATTR_RO(tcm_qla2xxx, version);
|
|
|
|
static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
|
|
&tcm_qla2xxx_wwn_version.attr,
|
|
NULL,
|
|
};
|
|
|
|
static struct target_core_fabric_ops tcm_qla2xxx_ops = {
|
|
.get_fabric_name = tcm_qla2xxx_get_fabric_name,
|
|
.get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
|
|
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
|
|
.tpg_get_tag = tcm_qla2xxx_get_tag,
|
|
.tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
|
|
.tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
|
|
.tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
|
|
.tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
|
|
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
|
|
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
|
|
.tpg_check_demo_mode_write_protect =
|
|
tcm_qla2xxx_check_demo_write_protect,
|
|
.tpg_check_prod_mode_write_protect =
|
|
tcm_qla2xxx_check_prod_write_protect,
|
|
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true,
|
|
.tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
|
|
.tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
|
|
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
|
|
.check_stop_free = tcm_qla2xxx_check_stop_free,
|
|
.release_cmd = tcm_qla2xxx_release_cmd,
|
|
.put_session = tcm_qla2xxx_put_session,
|
|
.shutdown_session = tcm_qla2xxx_shutdown_session,
|
|
.close_session = tcm_qla2xxx_close_session,
|
|
.sess_get_index = tcm_qla2xxx_sess_get_index,
|
|
.sess_get_initiator_sid = NULL,
|
|
.write_pending = tcm_qla2xxx_write_pending,
|
|
.write_pending_status = tcm_qla2xxx_write_pending_status,
|
|
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
|
|
.get_task_tag = tcm_qla2xxx_get_task_tag,
|
|
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
|
|
.queue_data_in = tcm_qla2xxx_queue_data_in,
|
|
.queue_status = tcm_qla2xxx_queue_status,
|
|
.queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
|
|
/*
|
|
* Setup function pointers for generic logic in
|
|
* target_core_fabric_configfs.c
|
|
*/
|
|
.fabric_make_wwn = tcm_qla2xxx_make_lport,
|
|
.fabric_drop_wwn = tcm_qla2xxx_drop_lport,
|
|
.fabric_make_tpg = tcm_qla2xxx_make_tpg,
|
|
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
|
|
.fabric_post_link = NULL,
|
|
.fabric_pre_unlink = NULL,
|
|
.fabric_make_np = NULL,
|
|
.fabric_drop_np = NULL,
|
|
.fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
|
|
.fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
|
|
};
|
|
|
|
static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
|
|
.get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
|
|
.get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
|
|
.tpg_get_wwn = tcm_qla2xxx_npiv_get_fabric_wwn,
|
|
.tpg_get_tag = tcm_qla2xxx_get_tag,
|
|
.tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
|
|
.tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
|
|
.tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
|
|
.tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
|
|
.tpg_check_demo_mode = tcm_qla2xxx_check_false,
|
|
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_true,
|
|
.tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_true,
|
|
.tpg_check_prod_mode_write_protect = tcm_qla2xxx_check_false,
|
|
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true,
|
|
.tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
|
|
.tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
|
|
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
|
|
.release_cmd = tcm_qla2xxx_release_cmd,
|
|
.put_session = tcm_qla2xxx_put_session,
|
|
.shutdown_session = tcm_qla2xxx_shutdown_session,
|
|
.close_session = tcm_qla2xxx_close_session,
|
|
.sess_get_index = tcm_qla2xxx_sess_get_index,
|
|
.sess_get_initiator_sid = NULL,
|
|
.write_pending = tcm_qla2xxx_write_pending,
|
|
.write_pending_status = tcm_qla2xxx_write_pending_status,
|
|
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
|
|
.get_task_tag = tcm_qla2xxx_get_task_tag,
|
|
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
|
|
.queue_data_in = tcm_qla2xxx_queue_data_in,
|
|
.queue_status = tcm_qla2xxx_queue_status,
|
|
.queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
|
|
/*
|
|
* Setup function pointers for generic logic in
|
|
* target_core_fabric_configfs.c
|
|
*/
|
|
.fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
|
|
.fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
|
|
.fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
|
|
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
|
|
.fabric_post_link = NULL,
|
|
.fabric_pre_unlink = NULL,
|
|
.fabric_make_np = NULL,
|
|
.fabric_drop_np = NULL,
|
|
.fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
|
|
.fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
|
|
};
|
|
|
|
static int tcm_qla2xxx_register_configfs(void)
|
|
{
|
|
struct target_fabric_configfs *fabric, *npiv_fabric;
|
|
int ret;
|
|
|
|
pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on "
|
|
UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname,
|
|
utsname()->machine);
|
|
/*
|
|
* Register the top level struct config_item_type with TCM core
|
|
*/
|
|
fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx");
|
|
if (IS_ERR(fabric)) {
|
|
pr_err("target_fabric_configfs_init() failed\n");
|
|
return PTR_ERR(fabric);
|
|
}
|
|
/*
|
|
* Setup fabric->tf_ops from our local tcm_qla2xxx_ops
|
|
*/
|
|
fabric->tf_ops = tcm_qla2xxx_ops;
|
|
/*
|
|
* Setup default attribute lists for various fabric->tf_cit_tmpl
|
|
*/
|
|
TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs =
|
|
tcm_qla2xxx_tpg_attrib_attrs;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
|
|
/*
|
|
* Register the fabric for use within TCM
|
|
*/
|
|
ret = target_fabric_configfs_register(fabric);
|
|
if (ret < 0) {
|
|
pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n");
|
|
return ret;
|
|
}
|
|
/*
|
|
* Setup our local pointer to *fabric
|
|
*/
|
|
tcm_qla2xxx_fabric_configfs = fabric;
|
|
pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_fabric_configfs\n");
|
|
|
|
/*
|
|
* Register the top level struct config_item_type for NPIV with TCM core
|
|
*/
|
|
npiv_fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx_npiv");
|
|
if (IS_ERR(npiv_fabric)) {
|
|
pr_err("target_fabric_configfs_init() failed\n");
|
|
ret = PTR_ERR(npiv_fabric);
|
|
goto out_fabric;
|
|
}
|
|
/*
|
|
* Setup fabric->tf_ops from our local tcm_qla2xxx_npiv_ops
|
|
*/
|
|
npiv_fabric->tf_ops = tcm_qla2xxx_npiv_ops;
|
|
/*
|
|
* Setup default attribute lists for various npiv_fabric->tf_cit_tmpl
|
|
*/
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_base_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
|
|
TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
|
|
/*
|
|
* Register the npiv_fabric for use within TCM
|
|
*/
|
|
ret = target_fabric_configfs_register(npiv_fabric);
|
|
if (ret < 0) {
|
|
pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n");
|
|
goto out_fabric;
|
|
}
|
|
/*
|
|
* Setup our local pointer to *npiv_fabric
|
|
*/
|
|
tcm_qla2xxx_npiv_fabric_configfs = npiv_fabric;
|
|
pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_npiv_fabric_configfs\n");
|
|
|
|
tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
|
|
WQ_MEM_RECLAIM, 0);
|
|
if (!tcm_qla2xxx_free_wq) {
|
|
ret = -ENOMEM;
|
|
goto out_fabric_npiv;
|
|
}
|
|
|
|
tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0);
|
|
if (!tcm_qla2xxx_cmd_wq) {
|
|
ret = -ENOMEM;
|
|
goto out_free_wq;
|
|
}
|
|
|
|
return 0;
|
|
|
|
out_free_wq:
|
|
destroy_workqueue(tcm_qla2xxx_free_wq);
|
|
out_fabric_npiv:
|
|
target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs);
|
|
out_fabric:
|
|
target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs);
|
|
return ret;
|
|
}
|
|
|
|
static void tcm_qla2xxx_deregister_configfs(void)
|
|
{
|
|
destroy_workqueue(tcm_qla2xxx_cmd_wq);
|
|
destroy_workqueue(tcm_qla2xxx_free_wq);
|
|
|
|
target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs);
|
|
tcm_qla2xxx_fabric_configfs = NULL;
|
|
pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_fabric_configfs\n");
|
|
|
|
target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs);
|
|
tcm_qla2xxx_npiv_fabric_configfs = NULL;
|
|
pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_npiv_fabric_configfs\n");
|
|
}
|
|
|
|
static int __init tcm_qla2xxx_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = tcm_qla2xxx_register_configfs();
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit tcm_qla2xxx_exit(void)
|
|
{
|
|
tcm_qla2xxx_deregister_configfs();
|
|
}
|
|
|
|
MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver");
|
|
MODULE_LICENSE("GPL");
|
|
module_init(tcm_qla2xxx_init);
|
|
module_exit(tcm_qla2xxx_exit);
|