From 297b60346df8beafee954a0fd7c2d64f33f3b9bc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:44:05 +0000
Subject: [PATCH] rtl8211F_led_control
---
kernel/drivers/target/target_core_device.c | 191 +++++++++++++++++++----------------------------
1 files changed, 79 insertions(+), 112 deletions(-)
diff --git a/kernel/drivers/target/target_core_device.c b/kernel/drivers/target/target_core_device.c
index 1b38151..9aeedcf 100644
--- a/kernel/drivers/target/target_core_device.c
+++ b/kernel/drivers/target/target_core_device.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*******************************************************************************
* Filename: target_core_device.c (based on iscsi_target_device.c)
*
@@ -7,20 +8,6 @@
* (c) Copyright 2003-2013 Datera, Inc.
*
* Nicholas A. Bellinger <nab@kernel.org>
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
******************************************************************************/
@@ -58,7 +45,7 @@
struct se_device *g_lun0_dev;
sense_reason_t
-transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
+transport_lookup_cmd_lun(struct se_cmd *se_cmd)
{
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
@@ -67,7 +54,7 @@
sense_reason_t ret = TCM_NO_SENSE;
rcu_read_lock();
- deve = target_nacl_find_deve(nacl, unpacked_lun);
+ deve = target_nacl_find_deve(nacl, se_cmd->orig_fe_lun);
if (deve) {
atomic_long_inc(&deve->total_cmds);
@@ -87,7 +74,6 @@
se_cmd->se_lun = se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
- se_cmd->orig_fe_lun = unpacked_lun;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
se_cmd->lun_ref_active = true;
@@ -95,8 +81,8 @@
deve->lun_access_ro) {
pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN"
" Access for 0x%08llx\n",
- se_cmd->se_tfo->get_fabric_name(),
- unpacked_lun);
+ se_cmd->se_tfo->fabric_name,
+ se_cmd->orig_fe_lun);
rcu_read_unlock();
ret = TCM_WRITE_PROTECTED;
goto ref_dev;
@@ -111,17 +97,17 @@
* REPORT_LUNS, et al to be returned when no active
* MappedLUN=0 exists for this Initiator Port.
*/
- if (unpacked_lun != 0) {
+ if (se_cmd->orig_fe_lun != 0) {
pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08llx\n",
- se_cmd->se_tfo->get_fabric_name(),
- unpacked_lun);
+ " Access for 0x%08llx from %s\n",
+ se_cmd->se_tfo->fabric_name,
+ se_cmd->orig_fe_lun,
+ nacl->initiatorname);
return TCM_NON_EXISTENT_LUN;
}
se_lun = se_sess->se_tpg->tpg_virt_lun0;
se_cmd->se_lun = se_sess->se_tpg->tpg_virt_lun0;
- se_cmd->orig_fe_lun = 0;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
percpu_ref_get(&se_lun->lun_ref);
@@ -157,7 +143,7 @@
}
EXPORT_SYMBOL(transport_lookup_cmd_lun);
-int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
+int transport_lookup_tmr_lun(struct se_cmd *se_cmd)
{
struct se_dev_entry *deve;
struct se_lun *se_lun = NULL;
@@ -167,7 +153,7 @@
unsigned long flags;
rcu_read_lock();
- deve = target_nacl_find_deve(nacl, unpacked_lun);
+ deve = target_nacl_find_deve(nacl, se_cmd->orig_fe_lun);
if (deve) {
se_lun = rcu_dereference(deve->se_lun);
@@ -178,7 +164,6 @@
se_cmd->se_lun = se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
- se_cmd->orig_fe_lun = unpacked_lun;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
se_cmd->lun_ref_active = true;
}
@@ -187,9 +172,10 @@
if (!se_lun) {
pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08llx\n",
- se_cmd->se_tfo->get_fabric_name(),
- unpacked_lun);
+ " Access for 0x%08llx for %s\n",
+ se_cmd->se_tfo->fabric_name,
+ se_cmd->orig_fe_lun,
+ nacl->initiatorname);
return -ENODEV;
}
se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
@@ -237,7 +223,7 @@
if (!lun) {
pr_err("%s device entries device pointer is"
" NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
+ tpg->se_tpg_tfo->fabric_name);
continue;
}
if (lun->lun_rtpi != rtpi)
@@ -404,9 +390,6 @@
return 0;
}
-/*
- * Called with se_node_acl->lun_entry_mutex held.
- */
void core_disable_device_list_for_node(
struct se_lun *lun,
struct se_dev_entry *orig,
@@ -418,6 +401,9 @@
* reference to se_device->dev_group.
*/
struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
+
+ lockdep_assert_held(&nacl->lun_entry_mutex);
+
/*
* If the MappedLUN entry is being disabled, the entry in
* lun->lun_deve_list must be removed now before clearing the
@@ -571,9 +557,9 @@
return rc;
pr_debug("%s_TPG[%u]_LUN[%llu] - Activated %s Logical Unit from"
- " CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(),
+ " CORE HBA: %u\n", tpg->se_tpg_tfo->fabric_name,
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
- tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id);
+ tpg->se_tpg_tfo->fabric_name, dev->se_hba->hba_id);
/*
* Update LUN maps for dynamically added initiators when
* generate_node_acl is enabled.
@@ -604,9 +590,9 @@
struct se_lun *lun)
{
pr_debug("%s_TPG[%u]_LUN[%llu] - Deactivating %s Logical Unit from"
- " device object\n", tpg->se_tpg_tfo->get_fabric_name(),
+ " device object\n", tpg->se_tpg_tfo->fabric_name,
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
- tpg->se_tpg_tfo->get_fabric_name());
+ tpg->se_tpg_tfo->fabric_name);
core_tpg_remove_lun(tpg, lun);
}
@@ -621,7 +607,7 @@
if (strlen(nacl->initiatorname) >= TRANSPORT_IQN_LEN) {
pr_err("%s InitiatorName exceeds maximum size.\n",
- tpg->se_tpg_tfo->get_fabric_name());
+ tpg->se_tpg_tfo->fabric_name);
*ret = -EOVERFLOW;
return NULL;
}
@@ -664,7 +650,7 @@
return -EINVAL;
pr_debug("%s_TPG[%hu]_LUN[%llu->%llu] - Added %s ACL for "
- " InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
+ " InitiatorNode: %s\n", tpg->se_tpg_tfo->fabric_name,
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, lacl->mapped_lun,
lun_access_ro ? "RO" : "RW",
nacl->initiatorname);
@@ -697,7 +683,7 @@
pr_debug("%s_TPG[%hu]_LUN[%llu] - Removed ACL for"
" InitiatorNode: %s Mapped LUN: %llu\n",
- tpg->se_tpg_tfo->get_fabric_name(),
+ tpg->se_tpg_tfo->fabric_name,
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
nacl->initiatorname, lacl->mapped_lun);
@@ -709,9 +695,9 @@
struct se_lun_acl *lacl)
{
pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s"
- " Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(),
+ " Mapped LUN: %llu\n", tpg->se_tpg_tfo->fabric_name,
tpg->se_tpg_tfo->tpg_get_tag(tpg),
- tpg->se_tpg_tfo->get_fabric_name(),
+ tpg->se_tpg_tfo->fabric_name,
lacl->se_lun_nacl->initiatorname, lacl->mapped_lun);
kfree(lacl);
@@ -720,36 +706,17 @@
static void scsi_dump_inquiry(struct se_device *dev)
{
struct t10_wwn *wwn = &dev->t10_wwn;
- char buf[17];
- int i, device_type;
+ int device_type = dev->transport->get_device_type(dev);
+
/*
* Print Linux/SCSI style INQUIRY formatting to the kernel ring buffer
*/
- for (i = 0; i < 8; i++)
- if (wwn->vendor[i] >= 0x20)
- buf[i] = wwn->vendor[i];
- else
- buf[i] = ' ';
- buf[i] = '\0';
- pr_debug(" Vendor: %s\n", buf);
-
- for (i = 0; i < 16; i++)
- if (wwn->model[i] >= 0x20)
- buf[i] = wwn->model[i];
- else
- buf[i] = ' ';
- buf[i] = '\0';
- pr_debug(" Model: %s\n", buf);
-
- for (i = 0; i < 4; i++)
- if (wwn->revision[i] >= 0x20)
- buf[i] = wwn->revision[i];
- else
- buf[i] = ' ';
- buf[i] = '\0';
- pr_debug(" Revision: %s\n", buf);
-
- device_type = dev->transport->get_device_type(dev);
+ pr_debug(" Vendor: %-" __stringify(INQUIRY_VENDOR_LEN) "s\n",
+ wwn->vendor);
+ pr_debug(" Model: %-" __stringify(INQUIRY_MODEL_LEN) "s\n",
+ wwn->model);
+ pr_debug(" Revision: %-" __stringify(INQUIRY_REVISION_LEN) "s\n",
+ wwn->revision);
pr_debug(" Type: %s ", scsi_device_type(device_type));
}
@@ -757,22 +724,34 @@
{
struct se_device *dev;
struct se_lun *xcopy_lun;
+ int i;
dev = hba->backend->ops->alloc_device(hba, name);
if (!dev)
return NULL;
+ dev->queues = kcalloc(nr_cpu_ids, sizeof(*dev->queues), GFP_KERNEL);
+ if (!dev->queues) {
+ dev->transport->free_device(dev);
+ return NULL;
+ }
+
+ dev->queue_cnt = nr_cpu_ids;
+ for (i = 0; i < dev->queue_cnt; i++) {
+ INIT_LIST_HEAD(&dev->queues[i].state_list);
+ spin_lock_init(&dev->queues[i].lock);
+ }
+
dev->se_hba = hba;
dev->transport = hba->backend->ops;
+ dev->transport_flags = dev->transport->transport_flags_default;
dev->prot_length = sizeof(struct t10_pi_tuple);
dev->hba_index = hba->hba_index;
INIT_LIST_HEAD(&dev->dev_sep_list);
INIT_LIST_HEAD(&dev->dev_tmr_list);
INIT_LIST_HEAD(&dev->delayed_cmd_list);
- INIT_LIST_HEAD(&dev->state_list);
INIT_LIST_HEAD(&dev->qf_cmd_list);
- spin_lock_init(&dev->execute_task_lock);
spin_lock_init(&dev->delayed_cmd_lock);
spin_lock_init(&dev->dev_reservation_lock);
spin_lock_init(&dev->se_port_lock);
@@ -791,6 +770,7 @@
spin_lock_init(&dev->t10_alua.lba_map_lock);
INIT_WORK(&dev->delayed_cmd_work, target_do_delayed_work);
+ mutex_init(&dev->lun_reset_mutex);
dev->t10_wwn.t10_dev = dev;
dev->t10_alua.t10_dev = dev;
@@ -801,12 +781,13 @@
dev->dev_attrib.emulate_fua_write = 1;
dev->dev_attrib.emulate_fua_read = 1;
dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE;
- dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL;
+ dev->dev_attrib.emulate_ua_intlck_ctrl = TARGET_UA_INTLCK_CTRL_CLEAR;
dev->dev_attrib.emulate_tas = DA_EMULATE_TAS;
dev->dev_attrib.emulate_tpu = DA_EMULATE_TPU;
dev->dev_attrib.emulate_tpws = DA_EMULATE_TPWS;
dev->dev_attrib.emulate_caw = DA_EMULATE_CAW;
dev->dev_attrib.emulate_3pc = DA_EMULATE_3PC;
+ dev->dev_attrib.emulate_pr = DA_EMULATE_PR;
dev->dev_attrib.pi_prot_type = TARGET_DIF_TYPE0_PROT;
dev->dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS;
dev->dev_attrib.force_pr_aptpl = DA_FORCE_PR_APTPL;
@@ -824,12 +805,18 @@
xcopy_lun = &dev->xcopy_lun;
rcu_assign_pointer(xcopy_lun->lun_se_dev, dev);
- init_completion(&xcopy_lun->lun_ref_comp);
init_completion(&xcopy_lun->lun_shutdown_comp);
INIT_LIST_HEAD(&xcopy_lun->lun_deve_list);
INIT_LIST_HEAD(&xcopy_lun->lun_dev_link);
mutex_init(&xcopy_lun->lun_tg_pt_md_mutex);
xcopy_lun->lun_tpg = &xcopy_pt_tpg;
+
+ /* Preload the default INQUIRY const values */
+ strlcpy(dev->t10_wwn.vendor, "LIO-ORG", sizeof(dev->t10_wwn.vendor));
+ strlcpy(dev->t10_wwn.model, dev->transport->inquiry_prod,
+ sizeof(dev->t10_wwn.model));
+ strlcpy(dev->t10_wwn.revision, dev->transport->inquiry_rev,
+ sizeof(dev->t10_wwn.revision));
return dev;
}
@@ -856,7 +843,6 @@
attrib->unmap_granularity = q->limits.discard_granularity / block_size;
attrib->unmap_granularity_alignment = q->limits.discard_alignment /
block_size;
- attrib->unmap_zeroes_data = (q->limits.max_write_zeroes_sectors);
return true;
}
EXPORT_SYMBOL(target_configure_unmap_from_queue);
@@ -881,7 +867,6 @@
EXPORT_SYMBOL(target_to_linux_sector);
struct devices_idr_iter {
- struct config_item *prev_item;
int (*fn)(struct se_device *dev, void *data);
void *data;
};
@@ -891,10 +876,8 @@
{
struct devices_idr_iter *iter = data;
struct se_device *dev = p;
+ struct config_item *item;
int ret;
-
- config_item_put(iter->prev_item);
- iter->prev_item = NULL;
/*
* We add the device early to the idr, so it can be used
@@ -905,12 +888,13 @@
if (!target_dev_configured(dev))
return 0;
- iter->prev_item = config_item_get_unless_zero(&dev->dev_group.cg_item);
- if (!iter->prev_item)
+ item = config_item_get_unless_zero(&dev->dev_group.cg_item);
+ if (!item)
return 0;
mutex_unlock(&device_mutex);
ret = iter->fn(dev, iter->data);
+ config_item_put(item);
mutex_lock(&device_mutex);
return ret;
@@ -933,7 +917,6 @@
mutex_lock(&device_mutex);
ret = idr_for_each(&devices_idr, target_devices_idr_iter, &iter);
mutex_unlock(&device_mutex);
- config_item_put(iter.prev_item);
return ret;
}
@@ -989,34 +972,9 @@
goto out_destroy_device;
/*
- * Startup the struct se_device processing thread
- */
- dev->tmr_wq = alloc_workqueue("tmr-%s", WQ_MEM_RECLAIM | WQ_UNBOUND, 1,
- dev->transport->name);
- if (!dev->tmr_wq) {
- pr_err("Unable to create tmr workqueue for %s\n",
- dev->transport->name);
- ret = -ENOMEM;
- goto out_free_alua;
- }
-
- /*
* Setup work_queue for QUEUE_FULL
*/
INIT_WORK(&dev->qf_work_queue, target_qf_do_work);
-
- /*
- * Preload the initial INQUIRY const values if we are doing
- * anything virtual (IBLOCK, FILEIO, RAMDISK), but not for TCM/pSCSI
- * passthrough because this is being provided by the backend LLD.
- */
- if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)) {
- strncpy(&dev->t10_wwn.vendor[0], "LIO-ORG", 8);
- strncpy(&dev->t10_wwn.model[0],
- dev->transport->inquiry_prod, 16);
- strncpy(&dev->t10_wwn.revision[0],
- dev->transport->inquiry_rev, 4);
- }
scsi_dump_inquiry(dev);
@@ -1028,8 +986,6 @@
return 0;
-out_free_alua:
- core_alua_free_lu_gp_mem(dev);
out_destroy_device:
dev->transport->destroy_device(dev);
out_free_index:
@@ -1048,8 +1004,6 @@
WARN_ON(!list_empty(&dev->dev_sep_list));
if (target_dev_configured(dev)) {
- destroy_workqueue(dev->tmr_wq);
-
dev->transport->destroy_device(dev);
mutex_lock(&device_mutex);
@@ -1069,6 +1023,7 @@
if (dev->transport->free_prot)
dev->transport->free_prot(dev);
+ kfree(dev->queues);
dev->transport->free_device(dev);
}
@@ -1140,11 +1095,23 @@
}
/*
+ * With emulate_pr disabled, all reservation requests should fail,
+ * regardless of whether or not TRANSPORT_FLAG_PASSTHROUGH_PGR is set.
+ */
+ if (!dev->dev_attrib.emulate_pr &&
+ ((cdb[0] == PERSISTENT_RESERVE_IN) ||
+ (cdb[0] == PERSISTENT_RESERVE_OUT) ||
+ (cdb[0] == RELEASE || cdb[0] == RELEASE_10) ||
+ (cdb[0] == RESERVE || cdb[0] == RESERVE_10))) {
+ return TCM_UNSUPPORTED_SCSI_OPCODE;
+ }
+
+ /*
* For PERSISTENT RESERVE IN/OUT, RELEASE, and RESERVE we need to
* emulate the response, since tcmu does not have the information
* required to process these commands.
*/
- if (!(dev->transport->transport_flags &
+ if (!(dev->transport_flags &
TRANSPORT_FLAG_PASSTHROUGH_PGR)) {
if (cdb[0] == PERSISTENT_RESERVE_IN) {
cmd->execute_cmd = target_scsi3_emulate_pr_in;
--
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