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authorAndy Grover <agrover@redhat.com>2011-07-19 10:26:37 +0000
committerNicholas Bellinger <nab@linux-iscsi.org>2011-07-22 09:37:43 +0000
commit5951146dea1ac8ff2f177477c907084d63913cad (patch)
tree699cb7c498ca1799ae3e349cb4360171d9fa63e0 /drivers
parentf22c119683e73498d8126581a1be75e1b7a339a3 (diff)
target: More core cleanups from AGrover (round 2)
This patch contains the squashed version of second round of target core cleanups and simplifications and Andy and Co. It also contains a handful of fixes to address bugs the original series and other minor cleanups. Here is the condensed shortlog: target: Remove unneeded casts to void* target: Rename get_lun_for_{cmd,tmr} to lookup_{cmd,tmr}_lun target: Make t_task a member of se_cmd, not a pointer target: Handle functions returning "-2" target: Use cmd->se_dev over cmd->se_lun->lun_se_dev target: Embed qr in struct se_cmd target: Replace embedded struct se_queue_req with a list_head target: Rename list_heads that are nodes in struct se_cmd to "*_node" target: Fold transport_device_setup_cmd() into lookup_{tmr,cmd}_lun() target: Make t_mem_list and t_mem_list_bidi members of t_task target: Add comment & cleanup transport_map_sg_to_mem() target: Remove unneeded checks in transport_free_pages() (Roland: Fix se_queue_req removal leftovers OOPs) (nab: Fix transport_lookup_tmr_lun failure case) (nab: Fix list_empty(&cmd->t_task.t_mem_bidi_list) inversion bugs) Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/target/loopback/tcm_loop.c56
-rw-r--r--drivers/target/target_core_alua.c8
-rw-r--r--drivers/target/target_core_cdb.c62
-rw-r--r--drivers/target/target_core_configfs.c4
-rw-r--r--drivers/target/target_core_device.c167
-rw-r--r--drivers/target/target_core_file.c12
-rw-r--r--drivers/target/target_core_iblock.c14
-rw-r--r--drivers/target/target_core_pr.c86
-rw-r--r--drivers/target/target_core_pscsi.c20
-rw-r--r--drivers/target/target_core_rd.c14
-rw-r--r--drivers/target/target_core_tmr.c89
-rw-r--r--drivers/target/target_core_transport.c1106
-rw-r--r--drivers/target/target_core_ua.c4
-rw-r--r--drivers/target/tcm_fc/tfc_cmd.c26
-rw-r--r--drivers/target/tcm_fc/tfc_conf.c2
-rw-r--r--drivers/target/tcm_fc/tfc_io.c10
16 files changed, 751 insertions, 929 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 2f19e192649..eeb7ee7ab9f 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -118,17 +118,16 @@ static struct se_cmd *tcm_loop_allocate_core_cmd(
* Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
*/
if (scsi_bidi_cmnd(sc))
- se_cmd->t_task->t_tasks_bidi = 1;
+ se_cmd->t_task.t_tasks_bidi = 1;
/*
* Locate the struct se_lun pointer and attach it to struct se_cmd
*/
- if (transport_get_lun_for_cmd(se_cmd, tl_cmd->sc->device->lun) < 0) {
+ if (transport_lookup_cmd_lun(se_cmd, tl_cmd->sc->device->lun) < 0) {
kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
set_host_byte(sc, DID_NO_CONNECT);
return NULL;
}
- transport_device_setup_cmd(se_cmd);
return se_cmd;
}
@@ -143,17 +142,17 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
struct tcm_loop_cmd, tl_se_cmd);
struct scsi_cmnd *sc = tl_cmd->sc;
- void *mem_ptr, *mem_bidi_ptr = NULL;
- u32 sg_no_bidi = 0;
+ struct scatterlist *sgl_bidi = NULL;
+ u32 sgl_bidi_count = 0;
int ret;
/*
* Allocate the necessary tasks to complete the received CDB+data
*/
- ret = transport_generic_allocate_tasks(se_cmd, tl_cmd->sc->cmnd);
- if (ret == -1) {
+ ret = transport_generic_allocate_tasks(se_cmd, sc->cmnd);
+ if (ret == -ENOMEM) {
/* Out of Resources */
return PYX_TRANSPORT_LU_COMM_FAILURE;
- } else if (ret == -2) {
+ } else if (ret == -EINVAL) {
/*
* Handle case for SAM_STAT_RESERVATION_CONFLICT
*/
@@ -165,35 +164,24 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
*/
return PYX_TRANSPORT_USE_SENSE_REASON;
}
+
/*
- * Setup the struct scatterlist memory from the received
- * struct scsi_cmnd.
+ * For BIDI commands, pass in the extra READ buffer
+ * to transport_generic_map_mem_to_cmd() below..
*/
- if (scsi_sg_count(sc)) {
- se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM;
- mem_ptr = (void *)scsi_sglist(sc);
- /*
- * For BIDI commands, pass in the extra READ buffer
- * to transport_generic_map_mem_to_cmd() below..
- */
- if (se_cmd->t_task->t_tasks_bidi) {
- struct scsi_data_buffer *sdb = scsi_in(sc);
+ if (se_cmd->t_task.t_tasks_bidi) {
+ struct scsi_data_buffer *sdb = scsi_in(sc);
- mem_bidi_ptr = (void *)sdb->table.sgl;
- sg_no_bidi = sdb->table.nents;
- }
- } else {
- /*
- * Used for DMA_NONE
- */
- mem_ptr = NULL;
+ sgl_bidi = sdb->table.sgl;
+ sgl_bidi_count = sdb->table.nents;
}
+
/*
* Map the SG memory into struct se_mem->page linked list using the same
* physical memory at sg->page_link.
*/
- ret = transport_generic_map_mem_to_cmd(se_cmd, mem_ptr,
- scsi_sg_count(sc), mem_bidi_ptr, sg_no_bidi);
+ ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
+ scsi_sg_count(sc), sgl_bidi, sgl_bidi_count);
if (ret < 0)
return PYX_TRANSPORT_LU_COMM_FAILURE;
@@ -384,14 +372,14 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
/*
* Allocate the LUN_RESET TMR
*/
- se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, (void *)tl_tmr,
+ se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, tl_tmr,
TMR_LUN_RESET);
if (IS_ERR(se_cmd->se_tmr_req))
goto release;
/*
* Locate the underlying TCM struct se_lun from sc->device->lun
*/
- if (transport_get_lun_for_tmr(se_cmd, sc->device->lun) < 0)
+ if (transport_lookup_tmr_lun(se_cmd, sc->device->lun) < 0)
goto release;
/*
* Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp()
@@ -904,7 +892,7 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
(se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE))) {
- memcpy((void *)sc->sense_buffer, (void *)se_cmd->sense_buffer,
+ memcpy(sc->sense_buffer, se_cmd->sense_buffer,
SCSI_SENSE_BUFFERSIZE);
sc->result = SAM_STAT_CHECK_CONDITION;
set_driver_byte(sc, DRIVER_SENSE);
@@ -1054,7 +1042,7 @@ static int tcm_loop_make_nexus(
* transport_register_session()
*/
__transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
- tl_nexus->se_sess, (void *)tl_nexus);
+ tl_nexus->se_sess, tl_nexus);
tl_tpg->tl_hba->tl_nexus = tl_nexus;
printk(KERN_INFO "TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
@@ -1242,7 +1230,7 @@ struct se_portal_group *tcm_loop_make_naa_tpg(
* Register the tl_tpg as a emulated SAS TCM Target Endpoint
*/
ret = core_tpg_register(&tcm_loop_fabric_configfs->tf_ops,
- wwn, &tl_tpg->tl_se_tpg, (void *)tl_tpg,
+ wwn, &tl_tpg->tl_se_tpg, tl_tpg,
TRANSPORT_TPG_TYPE_NORMAL);
if (ret < 0)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index bfc42adea51..76abd86b6a7 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -61,11 +61,11 @@ struct t10_alua_lu_gp *default_lu_gp;
*/
int core_emulate_report_target_port_groups(struct se_cmd *cmd)
{
- struct se_subsystem_dev *su_dev = cmd->se_lun->lun_se_dev->se_sub_dev;
+ struct se_subsystem_dev *su_dev = cmd->se_dev->se_sub_dev;
struct se_port *port;
struct t10_alua_tg_pt_gp *tg_pt_gp;
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
u32 rd_len = 0, off = 4; /* Skip over RESERVED area to first
Target port group descriptor */
@@ -151,13 +151,13 @@ int core_emulate_report_target_port_groups(struct se_cmd *cmd)
*/
int core_emulate_set_target_port_groups(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_subsystem_dev *su_dev = dev->se_sub_dev;
struct se_port *port, *l_port = cmd->se_lun->lun_sep;
struct se_node_acl *nacl = cmd->se_sess->se_node_acl;
struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *l_tg_pt_gp;
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *l_tg_pt_gp_mem;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
unsigned char *ptr = &buf[4]; /* Skip over RESERVED area in header */
u32 len = 4; /* Skip over RESERVED area in header */
int alua_access_state, primary = 0, rc;
diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c
index 7d9ccf3aa9c..95195d71810 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -65,8 +65,8 @@ static int
target_emulate_inquiry_std(struct se_cmd *cmd)
{
struct se_lun *lun = cmd->se_lun;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- unsigned char *buf = cmd->t_task->t_task_buf;
+ struct se_device *dev = cmd->se_dev;
+ unsigned char *buf = cmd->t_task.t_task_buf;
/*
* Make sure we at least have 6 bytes of INQUIRY response
@@ -128,7 +128,7 @@ target_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf)
* Registered Extended LUN WWN has been set via ConfigFS
* during device creation/restart.
*/
- if (cmd->se_lun->lun_se_dev->se_sub_dev->su_dev_flags &
+ if (cmd->se_dev->se_sub_dev->su_dev_flags &
SDF_EMULATED_VPD_UNIT_SERIAL) {
buf[3] = 3;
buf[5] = 0x80;
@@ -143,7 +143,7 @@ target_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf)
static int
target_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
u16 len = 0;
buf[1] = 0x80;
@@ -176,7 +176,7 @@ target_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf)
static int
target_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_lun *lun = cmd->se_lun;
struct se_port *port = NULL;
struct se_portal_group *tpg = NULL;
@@ -477,7 +477,7 @@ target_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
buf[5] = 0x07;
/* If WriteCache emulation is enabled, set V_SUP */
- if (cmd->se_lun->lun_se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0)
+ if (cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0)
buf[6] = 0x01;
return 0;
}
@@ -486,7 +486,7 @@ target_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
static int
target_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
int have_tp = 0;
/*
@@ -568,7 +568,7 @@ target_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
static int
target_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
/*
* From sbc3r22 section 6.5.4 Thin Provisioning VPD page:
@@ -620,9 +620,9 @@ target_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
static int
target_emulate_inquiry(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- unsigned char *buf = cmd->t_task->t_task_buf;
- unsigned char *cdb = cmd->t_task->t_task_cdb;
+ struct se_device *dev = cmd->se_dev;
+ unsigned char *buf = cmd->t_task.t_task_buf;
+ unsigned char *cdb = cmd->t_task.t_task_cdb;
if (!(cdb[1] & 0x1))
return target_emulate_inquiry_std(cmd);
@@ -665,8 +665,8 @@ target_emulate_inquiry(struct se_cmd *cmd)
static int
target_emulate_readcapacity(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- unsigned char *buf = cmd->t_task->t_task_buf;
+ struct se_device *dev = cmd->se_dev;
+ unsigned char *buf = cmd->t_task.t_task_buf;
unsigned long long blocks_long = dev->transport->get_blocks(dev);
u32 blocks;
@@ -695,8 +695,8 @@ target_emulate_readcapacity(struct se_cmd *cmd)
static int
target_emulate_readcapacity_16(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- unsigned char *buf = cmd->t_task->t_task_buf;
+ struct se_device *dev = cmd->se_dev;
+ unsigned char *buf = cmd->t_task.t_task_buf;
unsigned long long blocks = dev->transport->get_blocks(dev);
buf[0] = (blocks >> 56) & 0xff;
@@ -830,9 +830,9 @@ target_modesense_dpofua(unsigned char *buf, int type)
static int
target_emulate_modesense(struct se_cmd *cmd, int ten)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- char *cdb = cmd->t_task->t_task_cdb;
- unsigned char *rbuf = cmd->t_task->t_task_buf;
+ struct se_device *dev = cmd->se_dev;
+ char *cdb = cmd->t_task.t_task_cdb;
+ unsigned char *rbuf = cmd->t_task.t_task_buf;
int type = dev->transport->get_device_type(dev);
int offset = (ten) ? 8 : 4;
int length = 0;
@@ -903,8 +903,8 @@ target_emulate_modesense(struct se_cmd *cmd, int ten)
static int
target_emulate_request_sense(struct se_cmd *cmd)
{
- unsigned char *cdb = cmd->t_task->t_task_cdb;
- unsigned char *buf = cmd->t_task->t_task_buf;
+ unsigned char *cdb = cmd->t_task.t_task_cdb;
+ unsigned char *buf = cmd->t_task.t_task_buf;
u8 ua_asc = 0, ua_ascq = 0;
if (cdb[1] & 0x01) {
@@ -964,9 +964,9 @@ static int
target_emulate_unmap(struct se_task *task)
{
struct se_cmd *cmd = task->task_se_cmd;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- unsigned char *buf = cmd->t_task->t_task_buf, *ptr = NULL;
- unsigned char *cdb = &cmd->t_task->t_task_cdb[0];
+ struct se_device *dev = cmd->se_dev;
+ unsigned char *buf = cmd->t_task.t_task_buf, *ptr = NULL;
+ unsigned char *cdb = &cmd->t_task.t_task_cdb[0];
sector_t lba;
unsigned int size = cmd->data_length, range;
int ret, offset;
@@ -1011,8 +1011,8 @@ static int
target_emulate_write_same(struct se_task *task)
{
struct se_cmd *cmd = task->task_se_cmd;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
- sector_t lba = cmd->t_task->t_task_lba;
+ struct se_device *dev = cmd->se_dev;
+ sector_t lba = cmd->t_task.t_task_lba;
unsigned int range;
int ret;
@@ -1036,11 +1036,11 @@ int
transport_emulate_control_cdb(struct se_task *task)
{
struct se_cmd *cmd = task->task_se_cmd;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
unsigned short service_action;
int ret = 0;
- switch (cmd->t_task->t_task_cdb[0]) {
+ switch (cmd->t_task.t_task_cdb[0]) {
case INQUIRY:
ret = target_emulate_inquiry(cmd);
break;
@@ -1054,13 +1054,13 @@ transport_emulate_control_cdb(struct se_task *task)
ret = target_emulate_modesense(cmd, 1);
break;
case SERVICE_ACTION_IN:
- switch (cmd->t_task->t_task_cdb[1] & 0x1f) {
+ switch (cmd->t_task.t_task_cdb[1] & 0x1f) {
case SAI_READ_CAPACITY_16:
ret = target_emulate_readcapacity_16(cmd);
break;
default:
printk(KERN_ERR "Unsupported SA: 0x%02x\n",
- cmd->t_task->t_task_cdb[1] & 0x1f);
+ cmd->t_task.t_task_cdb[1] & 0x1f);
return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
}
break;
@@ -1085,7 +1085,7 @@ transport_emulate_control_cdb(struct se_task *task)
break;
case VARIABLE_LENGTH_CMD:
service_action =
- get_unaligned_be16(&cmd->t_task->t_task_cdb[8]);
+ get_unaligned_be16(&cmd->t_task.t_task_cdb[8]);
switch (service_action) {
case WRITE_SAME_32:
if (!dev->transport->do_discard) {
@@ -1124,7 +1124,7 @@ transport_emulate_control_cdb(struct se_task *task)
break;
default:
printk(KERN_ERR "Unsupported SCSI Opcode: 0x%02x for %s\n",
- cmd->t_task->t_task_cdb[0], dev->transport->name);
+ cmd->t_task.t_task_cdb[0], dev->transport->name);
return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
}
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 64418efa671..ac7f7655570 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -2037,7 +2037,7 @@ static ssize_t target_core_dev_show(struct config_item *item,
if (!(tc_attr->show))
return -EINVAL;
- return tc_attr->show((void *)se_dev, page);
+ return tc_attr->show(se_dev, page);
}
static ssize_t target_core_dev_store(struct config_item *item,
@@ -2053,7 +2053,7 @@ static ssize_t target_core_dev_store(struct config_item *item,
if (!(tc_attr->store))
return -EINVAL;
- return tc_attr->store((void *)se_dev, page, count);
+ return tc_attr->store(se_dev, page, count);
}
static struct configfs_item_operations target_core_dev_item_ops = {
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index fd923854505..ea92f75d215 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -59,15 +59,12 @@ static struct se_subsystem_dev *lun0_su_dev;
/* not static, needed by tpg.c */
struct se_device *g_lun0_dev;
-int transport_get_lun_for_cmd(
- struct se_cmd *se_cmd,
- u32 unpacked_lun)
+int transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
{
- struct se_dev_entry *deve;
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
+ struct se_device *dev;
unsigned long flags;
- int read_only = 0;
if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) {
se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN;
@@ -76,91 +73,87 @@ int transport_get_lun_for_cmd(
}
spin_lock_irq(&se_sess->se_node_acl->device_list_lock);
- deve = se_cmd->se_deve =
- &se_sess->se_node_acl->device_list[unpacked_lun];
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- if (se_cmd) {
- deve->total_cmds++;
- deve->total_bytes += se_cmd->data_length;
-
- if (se_cmd->data_direction == DMA_TO_DEVICE) {
- if (deve->lun_flags &
- TRANSPORT_LUNFLAGS_READ_ONLY) {
- read_only = 1;
- goto out;
- }
- deve->write_bytes += se_cmd->data_length;
- } else if (se_cmd->data_direction ==
- DMA_FROM_DEVICE) {
- deve->read_bytes += se_cmd->data_length;
- }
+ se_cmd->se_deve = &se_sess->se_node_acl->device_list[unpacked_lun];
+ if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
+ struct se_dev_entry *deve = se_cmd->se_deve;
+
+ deve->total_cmds++;
+ deve->total_bytes += se_cmd->data_length;
+
+ if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
+ (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) {
+ se_cmd->scsi_sense_reason = TCM_WRITE_PROTECTED;
+ se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+ printk("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN"
+ " Access for 0x%08x\n",
+ se_cmd->se_tfo->get_fabric_name(),
+ unpacked_lun);
+ spin_unlock_irq(&se_sess->se_node_acl->device_list_lock);
+ return -EACCES;
}
+
+ if (se_cmd->data_direction == DMA_TO_DEVICE)
+ deve->write_bytes += se_cmd->data_length;
+ else if (se_cmd->data_direction == DMA_FROM_DEVICE)
+ deve->read_bytes += se_cmd->data_length;
+
deve->deve_cmds++;
- se_lun = se_cmd->se_lun = deve->se_lun;
+ se_lun = deve->se_lun;
+ se_cmd->se_lun = deve->se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
}
-out:
spin_unlock_irq(&se_sess->se_node_acl->device_list_lock);
if (!se_lun) {
- if (read_only) {
- se_cmd->scsi_sense_reason = TCM_WRITE_PROTECTED;
+ /*
+ * Use the se_portal_group->tpg_virt_lun0 to allow for
+ * REPORT_LUNS, et al to be returned when no active
+ * MappedLUN=0 exists for this Initiator Port.
+ */
+ if (unpacked_lun != 0) {
+ se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN;
se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
- printk("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN"
+ printk("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
" Access for 0x%08x\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
+ return -ENODEV;
+ }
+ /*
+ * Force WRITE PROTECT for virtual LUN 0
+ */
+ if ((se_cmd->data_direction != DMA_FROM_DEVICE) &&
+ (se_cmd->data_direction != DMA_NONE)) {
+ se_cmd->scsi_sense_reason = TCM_WRITE_PROTECTED;
+ se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
return -EACCES;
- } else {
- /*
- * Use the se_portal_group->tpg_virt_lun0 to allow for
- * REPORT_LUNS, et al to be returned when no active
- * MappedLUN=0 exists for this Initiator Port.
- */
- if (unpacked_lun != 0) {
- se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN;
- se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
- printk("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08x\n",
- se_cmd->se_tfo->get_fabric_name(),
- unpacked_lun);
- return -ENODEV;
- }
- /*
- * Force WRITE PROTECT for virtual LUN 0
- */
- if ((se_cmd->data_direction != DMA_FROM_DEVICE) &&
- (se_cmd->data_direction != DMA_NONE)) {
- se_cmd->scsi_sense_reason = TCM_WRITE_PROTECTED;
- se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
- return -EACCES;
- }
-#if 0
- printk("TARGET_CORE[%s]: Using virtual LUN0! :-)\n",
- se_cmd->se_tfo->get_fabric_name());
-#endif
- se_lun = se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0;
- se_cmd->orig_fe_lun = 0;
- se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
- se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
}
+
+ 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_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
+ se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
}
/*
* Determine if the struct se_lun is online.
+ * FIXME: Check for LUN_RESET + UNIT Attention
*/
-/* #warning FIXME: Check for LUN_RESET + UNIT Attention */
if (se_dev_check_online(se_lun->lun_se_dev) != 0) {
se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN;
se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
return -ENODEV;
}
- {
- struct se_device *dev = se_lun->lun_se_dev;
+ /* Directly associate cmd with se_dev */
+ se_cmd->se_dev = se_lun->lun_se_dev;
+
+ /* TODO: get rid of this and use atomics for stats */
+ dev = se_lun->lun_se_dev;
spin_lock_irq(&dev->stats_lock);
dev->num_cmds++;
if (se_cmd->data_direction == DMA_TO_DEVICE)
@@ -168,30 +161,22 @@ out:
else if (se_cmd->data_direction == DMA_FROM_DEVICE)
dev->read_bytes += se_cmd->data_length;
spin_unlock_irq(&dev->stats_lock);
- }
/*
* Add the iscsi_cmd_t to the struct se_lun's cmd list. This list is used
* for tracking state of struct se_cmds during LUN shutdown events.
*/
spin_lock_irqsave(&se_lun->lun_cmd_lock, flags);
- list_add_tail(&se_cmd->se_lun_list, &se_lun->lun_cmd_list);
- atomic_set(&se_cmd->t_task->transport_lun_active, 1);
-#if 0
- printk(KERN_INFO "Adding ITT: 0x%08x to LUN LIST[%d]\n",
- se_cmd->se_tfo->get_task_tag(se_cmd), se_lun->unpacked_lun);
-#endif
+ list_add_tail(&se_cmd->se_lun_node, &se_lun->lun_cmd_list);
+ atomic_set(&se_cmd->t_task.transport_lun_active, 1);
spin_unlock_irqrestore(&se_lun->lun_cmd_lock, flags);
return 0;
}
-EXPORT_SYMBOL(transport_get_lun_for_cmd);
+EXPORT_SYMBOL(transport_lookup_cmd_lun);
-int transport_get_lun_for_tmr(
- struct se_cmd *se_cmd,
- u32 unpacked_lun)
+int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
{
- struct se_device *dev = NULL;
struct se_dev_entry *deve;
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
@@ -204,15 +189,16 @@ int transport_get_lun_for_tmr(
}
spin_lock_irq(&se_sess->se_node_acl->device_list_lock);
- deve = se_cmd->se_deve =
- &se_sess->se_node_acl->device_list[unpacked_lun];
+ se_cmd->se_deve = &se_sess->se_node_acl->device_list[unpacked_lun];
+ deve = se_cmd->se_deve;
+
if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- se_lun = se_cmd->se_lun = se_tmr->tmr_lun = deve->se_lun;
- dev = se_lun->lun_se_dev;
+ se_tmr->tmr_lun = deve->se_lun;
+ se_cmd->se_lun = deve->se_lun;
+ se_lun = deve->se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
- se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
-/* se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; */
+ se_cmd->se_orig_obj_ptr = se_cmd->se_dev;
}
spin_unlock_irq(&se_sess->se_node_acl->device_list_lock);
@@ -226,21 +212,24 @@ int transport_get_lun_for_tmr(
}
/*
* Determine if the struct se_lun is online.
+ * FIXME: Check for LUN_RESET + UNIT Attention
*/
-/* #warning FIXME: Check for LUN_RESET + UNIT Attention */
if (se_dev_check_online(se_lun->lun_se_dev) != 0) {
se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
return -ENODEV;
}
- se_tmr->tmr_dev = dev;
- spin_lock(&dev->se_tmr_lock);
- list_add_tail(&se_tmr->tmr_list, &dev->dev_tmr_list);
- spin_unlock(&dev->se_tmr_lock);
+ /* Directly associate cmd with se_dev */
+ se_cmd->se_dev = se_lun->lun_se_dev;
+ se_tmr->tmr_dev = se_lun->lun_se_dev;
+
+ spin_lock(&se_tmr->tmr_dev->se_tmr_lock);
+ list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list);
+ spin_unlock(&se_tmr->tmr_dev->se_tmr_lock);
return 0;
}
-EXPORT_SYMBOL(transport_get_lun_for_tmr);
+EXPORT_SYMBOL(transport_lookup_tmr_lun);
/*
* This function is called from core_scsi3_emulate_pro_register_and_move()
@@ -667,10 +656,10 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd)
struct se_lun *se_lun;
struct se_session *se_sess = se_cmd->se_sess;
struct se_task *se_task;
- unsigned char *buf = se_cmd->t_task->t_task_buf;
+ unsigned char *buf = se_cmd->t_task.t_task_buf;
u32 cdb_offset = 0, lun_count = 0, offset = 8, i;
- list_for_each_entry(se_task, &se_cmd->t_task->t_task_list, t_list)
+ list_for_each_entry(se_task, &se_cmd->t_task.t_task_list, t_list)
break;
if (!(se_task)) {
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 0c44bc05148..2e7ea745750 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -223,7 +223,7 @@ static struct se_device *fd_create_virtdevice(
dev_limits.queue_depth = FD_DEVICE_QUEUE_DEPTH;
dev = transport_add_device_to_core_hba(hba, &fileio_template,
- se_dev, dev_flags, (void *)fd_dev,
+ se_dev, dev_flags, fd_dev,
&dev_limits, "FILEIO", FD_VERSION);
if (!(dev))
goto fail;
@@ -279,7 +279,7 @@ fd_alloc_task(struct se_cmd *cmd)
return NULL;
}
- fd_req->fd_dev = cmd->se_lun->lun_se_dev->dev_ptr;
+ fd_req->fd_dev = cmd->se_dev->dev_ptr;
return &fd_req->fd_task;
}
@@ -377,7 +377,7 @@ static void fd_emulate_sync_cache(struct se_task *task)
struct se_cmd *cmd = task->task_se_cmd;
struct se_device *dev = cmd->se_dev;
struct fd_dev *fd_dev = dev->dev_ptr;
- int immed = (cmd->t_task->t_task_cdb[1] & 0x2);
+ int immed = (cmd->t_task.t_task_cdb[1] & 0x2);
loff_t start, end;
int ret;
@@ -391,11 +391,11 @@ static void fd_emulate_sync_cache(struct se_task *task)
/*
* Determine if we will be flushing the entire device.
*/
- if (cmd->t_task->t_task_lba == 0 && cmd->data_length == 0) {
+ if (cmd->t_task.t_task_lba == 0 && cmd->data_length == 0) {
start = 0;
end = LLONG_MAX;
} else {
- start = cmd->t_task->t_task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
+ start = cmd->t_task.t_task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
if (cmd->data_length)
end = start + cmd->data_length;
else
@@ -475,7 +475,7 @@ static int fd_do_task(struct se_task *task)
if (ret > 0 &&
dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0 &&
dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
- cmd->t_task->t_tasks_fua) {
+ cmd->t_task.t_tasks_fua) {
/*
* We might need to be a bit smarter here
* and return some sense data to let the initiator
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index fb159876fff..c73baefeab8 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -74,7 +74,7 @@ static int iblock_attach_hba(struct se_hba *hba, u32 host_id)
ib_host->iblock_host_id = host_id;
- hba->hba_ptr = (void *) ib_host;
+ hba->hba_ptr = ib_host;
printk(KERN_INFO "CORE_HBA[%d] - TCM iBlock HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
@@ -172,7 +172,7 @@ static struct se_device *iblock_create_virtdevice(
ib_dev->ibd_bd = bd;
dev = transport_add_device_to_core_hba(hba,
- &iblock_template, se_dev, dev_flags, (void *)ib_dev,
+ &iblock_template, se_dev, dev_flags, ib_dev,
&dev_limits, "IBLOCK", IBLOCK_VERSION);
if (!(dev))
goto failed;
@@ -240,7 +240,7 @@ iblock_alloc_task(struct se_cmd *cmd)
return NULL;
}
- ib_req->ib_dev = cmd->se_lun->lun_se_dev->dev_ptr;
+ ib_req->ib_dev = cmd->se_dev->dev_ptr;
atomic_set(&ib_req->ib_bio_cnt, 0);
return &ib_req->ib_task;
}
@@ -331,7 +331,7 @@ static void iblock_emulate_sync_cache(struct se_task *task)
{
struct se_cmd *cmd = task->task_se_cmd;
struct iblock_dev *ib_dev = cmd->se_dev->dev_ptr;
- int immed = (cmd->t_task->t_task_cdb[1] & 0x2);
+ int immed = (cmd->t_task.t_task_cdb[1] & 0x2);
sector_t error_sector;
int ret;
@@ -400,7 +400,7 @@ static int iblock_do_task(struct se_task *task)
*/
if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache == 0 ||
(dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
- task->task_se_cmd->t_task->t_tasks_fua))
+ task->task_se_cmd->t_task.t_tasks_fua))
rw = WRITE_FUA;
else
rw = WRITE;
@@ -593,7 +593,7 @@ static struct bio *iblock_get_bio(
DEBUG_IBLOCK("Allocated bio: %p task_size: %u\n", bio, task->task_size);
bio->bi_bdev = ib_dev->ibd_bd;
- bio->bi_private = (void *) task;
+ bio->bi_private = task;
bio->bi_destructor = iblock_bio_destructor;
bio->bi_end_io = &iblock_bio_done;
bio->bi_sector = lba;
@@ -608,7 +608,7 @@ static struct bio *iblock_get_bio(
static int iblock_map_task_SG(struct se_task *task)
{
struct se_cmd *cmd = task->task_se_cmd;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct iblock_dev *ib_dev = task->se_dev->dev_ptr;
struct iblock_req *ib_req = IBLOCK_REQ(task);
struct bio *bio = NULL, *hbio = NULL, *tbio = NULL;
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 27a7525971b..19406a3474c 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -157,8 +157,8 @@ static int core_scsi2_reservation_reserve(struct se_cmd *cmd)
struct se_session *sess = cmd->se_sess;
struct se_portal_group *tpg = sess->se_tpg;
- if ((cmd->t_task->t_task_cdb[1] & 0x01) &&
- (cmd->t_task->t_task_cdb[1] & 0x02)) {
+ if ((cmd->t_task.t_task_cdb[1] & 0x01) &&
+ (cmd->t_task.t_task_cdb[1] & 0x02)) {
printk(KERN_ERR "LongIO and Obselete Bits set, returning"
" ILLEGAL_REQUEST\n");
return PYX_TRANSPORT_ILLEGAL_REQUEST;
@@ -216,7 +216,7 @@ int core_scsi2_emulate_crh(struct se_cmd *cmd)
struct se_subsystem_dev *su_dev = cmd->se_dev->se_sub_dev;
struct t10_pr_registration *pr_reg;
struct t10_reservation *pr_tmpl = &su_dev->t10_pr;
- unsigned char *cdb = &cmd->t_task->t_task_cdb[0];
+ unsigned char *cdb = &cmd->t_task.t_task_cdb[0];
int crh = (su_dev->t10_pr.res_type == SPC3_PERSISTENT_RESERVATIONS);
int conflict = 0;
@@ -1471,7 +1471,7 @@ static int core_scsi3_decode_spec_i_port(
int all_tg_pt,
int aptpl)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_port *tmp_port;
struct se_portal_group *dest_tpg = NULL, *tmp_tpg;
struct se_session *se_sess = cmd->se_sess;
@@ -1482,7 +1482,7 @@ static int core_scsi3_decode_spec_i_port(
struct list_head tid_dest_list;
struct pr_transport_id_holder *tidh_new, *tidh, *tidh_tmp;
struct target_core_fabric_ops *tmp_tf_ops;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
unsigned char *ptr, *i_str = NULL, proto_ident, tmp_proto_ident;
char *iport_ptr = NULL, dest_iport[64], i_buf[PR_REG_ISID_ID_LEN];
u32 tpdl, tid_len = 0;
@@ -1509,7 +1509,7 @@ static int core_scsi3_decode_spec_i_port(
tidh_new->dest_node_acl = se_sess->se_node_acl;
tidh_new->dest_se_deve = local_se_deve;
- local_pr_reg = __core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev,
+ local_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev,
se_sess->se_node_acl, local_se_deve, l_isid,
sa_res_key, all_tg_pt, aptpl);
if (!(local_pr_reg)) {
@@ -1741,7 +1741,7 @@ static int core_scsi3_decode_spec_i_port(
* and then call __core_scsi3_add_registration() in the
* 2nd loop which will never fail.
*/
- dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev,
+ dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev,
dest_node_acl, dest_se_deve, iport_ptr,
sa_res_key, all_tg_pt, aptpl);
if (!(dest_pr_reg)) {
@@ -1787,7 +1787,7 @@ static int core_scsi3_decode_spec_i_port(
prf_isid = core_pr_dump_initiator_port(dest_pr_reg, &i_buf[0],
PR_REG_ISID_ID_LEN);
- __core_scsi3_add_registration(cmd->se_lun->lun_se_dev, dest_node_acl,
+ __core_scsi3_add_registration(cmd->se_dev, dest_node_acl,
dest_pr_reg, 0, 0);
printk(KERN_INFO "SPC-3 PR [%s] SPEC_I_PT: Successfully"
@@ -2071,7 +2071,7 @@ static int core_scsi3_emulate_pro_register(
int ignore_key)
{
struct se_session *se_sess = cmd->se_sess;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_dev_entry *se_deve;
struct se_lun *se_lun = cmd->se_lun;
struct se_portal_group *se_tpg;
@@ -2117,7 +2117,7 @@ static int core_scsi3_emulate_pro_register(
* Port Endpoint that the PRO was received from on the
* Logical Unit of the SCSI device server.
*/
- ret = core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_alloc_registration(cmd->se_dev,
se_sess->se_node_acl, se_deve, isid_ptr,
sa_res_key, all_tg_pt, aptpl,
ignore_key, 0);
@@ -2145,7 +2145,7 @@ static int core_scsi3_emulate_pro_register(
*/
if (!(aptpl)) {
pr_tmpl->pr_aptpl_active = 0;
- core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, NULL, 0);
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0);
printk("SPC-3 PR: Set APTPL Bit Deactivated for"
" REGISTER\n");
return 0;
@@ -2155,10 +2155,10 @@ static int core_scsi3_emulate_pro_register(
* update the APTPL metadata information using its
* preallocated *pr_reg->pr_aptpl_buf.
*/
- pr_reg = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev,
+ pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev,
se_sess->se_node_acl, se_sess);
- ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_update_and_write_aptpl(cmd->se_dev,
&pr_reg->pr_aptpl_buf[0],
pr_tmpl->pr_aptpl_buf_len);
if (!(ret)) {
@@ -2223,7 +2223,7 @@ static int core_scsi3_emulate_pro_register(
*/
if (!(sa_res_key)) {
pr_holder = core_scsi3_check_implict_release(
- cmd->se_lun->lun_se_dev, pr_reg);
+ cmd->se_dev, pr_reg);
if (pr_holder < 0) {
kfree(pr_aptpl_buf);
core_scsi3_put_pr_reg(pr_reg);
@@ -2260,7 +2260,7 @@ static int core_scsi3_emulate_pro_register(
/*
* Release the calling I_T Nexus registration now..
*/
- __core_scsi3_free_registration(cmd->se_lun->lun_se_dev, pr_reg,
+ __core_scsi3_free_registration(cmd->se_dev, pr_reg,
NULL, 1);
/*
* From spc4r17, section 5.7.11.3 Unregistering
@@ -2315,7 +2315,7 @@ static int core_scsi3_emulate_pro_register(
* READ_KEYS service action.
*/
pr_reg->pr_res_generation = core_scsi3_pr_generation(
- cmd->se_lun->lun_se_dev);
+ cmd->se_dev);
pr_reg->pr_res_key = sa_res_key;
printk("SPC-3 PR [%s] REGISTER%s: Changed Reservation"
" Key for %s to: 0x%016Lx PRgeneration:"
@@ -2398,7 +2398,7 @@ static int core_scsi3_pro_reserve(
/*
* Locate the existing *pr_reg via struct se_node_acl pointers
*/
- pr_reg = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, se_sess->se_node_acl,
+ pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl,
se_sess);
if (!(pr_reg)) {
printk(KERN_ERR "SPC-3 PR: Unable to locate"
@@ -2527,7 +2527,7 @@ static int core_scsi3_pro_reserve(
spin_unlock(&dev->dev_reservation_lock);
if (pr_tmpl->pr_aptpl_active) {
- ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_update_and_write_aptpl(cmd->se_dev,
&pr_reg->pr_aptpl_buf[0],
pr_tmpl->pr_aptpl_buf_len);
if (!(ret))
@@ -2758,7 +2758,7 @@ static int core_scsi3_emulate_pro_release(
write_aptpl:
if (pr_tmpl->pr_aptpl_active) {
- ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_update_and_write_aptpl(cmd->se_dev,
&pr_reg->pr_aptpl_buf[0],
pr_tmpl->pr_aptpl_buf_len);
if (!(ret))
@@ -2783,7 +2783,7 @@ static int core_scsi3_emulate_pro_clear(
/*
* Locate the existing *pr_reg via struct se_node_acl pointers
*/
- pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev,
+ pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_dev,
se_sess->se_node_acl, se_sess);
if (!(pr_reg_n)) {
printk(KERN_ERR "SPC-3 PR: Unable to locate"
@@ -2849,7 +2849,7 @@ static int core_scsi3_emulate_pro_clear(
cmd->se_tfo->get_fabric_name());
if (pr_tmpl->pr_aptpl_active) {
- core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, NULL, 0);
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0);
printk(KERN_INFO "SPC-3 PR: Updated APTPL metadata"
" for CLEAR\n");
}
@@ -2954,7 +2954,7 @@ static int core_scsi3_pro_preempt(
u64 sa_res_key,
int abort)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_dev_entry *se_deve;
struct se_node_acl *pr_reg_nacl;
struct se_session *se_sess = cmd->se_sess;
@@ -2969,7 +2969,7 @@ static int core_scsi3_pro_preempt(
return PYX_TRANSPORT_LU_COMM_FAILURE;
se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
- pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, se_sess->se_node_acl,
+ pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl,
se_sess);
if (!(pr_reg_n)) {
printk(KERN_ERR "SPC-3 PR: Unable to locate"
@@ -3111,7 +3111,7 @@ static int core_scsi3_pro_preempt(
spin_unlock(&dev->dev_reservation_lock);
if (pr_tmpl->pr_aptpl_active) {
- ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_update_and_write_aptpl(cmd->se_dev,
&pr_reg_n->pr_aptpl_buf[0],
pr_tmpl->pr_aptpl_buf_len);
if (!(ret))
@@ -3121,7 +3121,7 @@ static int core_scsi3_pro_preempt(
}
core_scsi3_put_pr_reg(pr_reg_n);
- core_scsi3_pr_generation(cmd->se_lun->lun_se_dev);
+ core_scsi3_pr_generation(cmd->se_dev);
return 0;
}
/*
@@ -3247,7 +3247,7 @@ static int core_scsi3_pro_preempt(
}
if (pr_tmpl->pr_aptpl_active) {
- ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_update_and_write_aptpl(cmd->se_dev,
&pr_reg_n->pr_aptpl_buf[0],
pr_tmpl->pr_aptpl_buf_len);
if (!(ret))
@@ -3256,7 +3256,7 @@ static int core_scsi3_pro_preempt(
}
core_scsi3_put_pr_reg(pr_reg_n);
- core_scsi3_pr_generation(cmd->se_lun->lun_se_dev);
+ core_scsi3_pr_generation(cmd->se_dev);
return 0;
}
@@ -3298,7 +3298,7 @@ static int core_scsi3_emulate_pro_register_and_move(
int unreg)
{
struct se_session *se_sess = cmd->se_sess;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_dev_entry *se_deve, *dest_se_deve = NULL;
struct se_lun *se_lun = cmd->se_lun;
struct se_node_acl *pr_res_nacl, *pr_reg_nacl, *dest_node_acl = NULL;
@@ -3307,7 +3307,7 @@ static int core_scsi3_emulate_pro_register_and_move(
struct target_core_fabric_ops *dest_tf_ops = NULL, *tf_ops;
struct t10_pr_registration *pr_reg, *pr_res_holder, *dest_pr_reg;
struct t10_reservation *pr_tmpl = &dev->se_sub_dev->t10_pr;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
unsigned char *initiator_str;
char *iport_ptr = NULL, dest_iport[64], i_buf[PR_REG_ISID_ID_LEN];
u32 tid_len, tmp_tid_len;
@@ -3330,7 +3330,7 @@ static int core_scsi3_emulate_pro_register_and_move(
*
* Locate the existing *pr_reg via struct se_node_acl pointers
*/
- pr_reg = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, se_sess->se_node_acl,
+ pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl,
se_sess);
if (!(pr_reg)) {
printk(KERN_ERR "SPC-3 PR: Unable to locate PR_REGISTERED"
@@ -3612,7 +3612,7 @@ after_iport_check:
dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
iport_ptr);
if (!(dest_pr_reg)) {
- ret = core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_alloc_registration(cmd->se_dev,
dest_node_acl, dest_se_deve, iport_ptr,
sa_res_key, 0, aptpl, 2, 1);
if (ret != 0) {
@@ -3683,12 +3683,12 @@ after_iport_check:
*/
if (!(aptpl)) {
pr_tmpl->pr_aptpl_active = 0;
- core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, NULL, 0);
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0);
printk("SPC-3 PR: Set APTPL Bit Deactivated for"
" REGISTER_AND_MOVE\n");
} else {
pr_tmpl->pr_aptpl_active = 1;
- ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev,
+ ret = core_scsi3_update_and_write_aptpl(cmd->se_dev,
&dest_pr_reg->pr_aptpl_buf[0],
pr_tmpl->pr_aptpl_buf_len);
if (!(ret))
@@ -3723,7 +3723,7 @@ static unsigned long long core_scsi3_extract_reservation_key(unsigned char *cdb)
*/
static int core_scsi3_emulate_pr_out(struct se_cmd *cmd, unsigned char *cdb)
{
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
u64 res_key, sa_res_key;
int sa, scope, type, aptpl;
int spec_i_pt = 0, all_tg_pt = 0, unreg = 0;
@@ -3827,10 +3827,10 @@ static int core_scsi3_emulate_pr_out(struct se_cmd *cmd, unsigned char *cdb)
*/
static int core_scsi3_pri_read_keys(struct se_cmd *cmd)
{
- struct se_device *se_dev = cmd->se_lun->lun_se_dev;
+ struct se_device *se_dev = cmd->se_dev;
struct se_subsystem_dev *su_dev = se_dev->se_sub_dev;
struct t10_pr_registration *pr_reg;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
u32 add_len = 0, off = 8;
if (cmd->data_length < 8) {
@@ -3882,10 +3882,10 @@ static int core_scsi3_pri_read_keys(struct se_cmd *cmd)
*/
static int core_scsi3_pri_read_reservation(struct se_cmd *cmd)
{
- struct se_device *se_dev = cmd->se_lun->lun_se_dev;
+ struct se_device *se_dev = cmd->se_dev;
struct se_subsystem_dev *su_dev = se_dev->se_sub_dev;
struct t10_pr_registration *pr_reg;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
u64 pr_res_key;
u32 add_len = 16; /* Hardcoded to 16 when a reservation is held. */
@@ -3963,9 +3963,9 @@ static int core_scsi3_pri_read_reservation(struct se_cmd *cmd)
*/
static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct t10_reservation *pr_tmpl = &dev->se_sub_dev->t10_pr;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
u16 add_len = 8; /* Hardcoded to 8. */
if (cmd->data_length < 6) {
@@ -4014,13 +4014,13 @@ static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
*/
static int core_scsi3_pri_read_full_status(struct se_cmd *cmd)
{
- struct se_device *se_dev = cmd->se_lun->lun_se_dev;
+ struct se_device *se_dev = cmd->se_dev;
struct se_node_acl *se_nacl;
struct se_subsystem_dev *su_dev = se_dev->se_sub_dev;
struct se_portal_group *se_tpg;
struct t10_pr_registration *pr_reg, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &se_dev->se_sub_dev->t10_pr;
- unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf;
+ unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf;
u32 add_desc_len = 0, add_len = 0, desc_len, exp_desc_len;
u32 off = 8; /* off into first Full Status descriptor */
int format_code = 0;
@@ -4174,7 +4174,7 @@ static int core_scsi3_emulate_pr_in(struct se_cmd *cmd, unsigned char *cdb)
int core_scsi3_emulate_pr(struct se_cmd *cmd)
{
- unsigned char *cdb = &cmd->t_task->t_task_cdb[0];
+ unsigned char *cdb = &cmd->t_task.t_task_cdb[0];
struct se_device *dev = cmd->se_dev;
/*
* Following spc2r20 5.5.1 Reservations overview:
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 44a79a5c6d3..ecfe889cb0c 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -72,7 +72,7 @@ static int pscsi_attach_hba(struct se_hba *hba, u32 host_id)
phv->phv_host_id = host_id;
phv->phv_mode = PHV_VIRUTAL_HOST_ID;
- hba->hba_ptr = (void *)phv;
+ hba->hba_ptr = phv;
printk(KERN_INFO "CORE_HBA[%d] - TCM SCSI HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
@@ -355,7 +355,7 @@ static struct se_device *pscsi_add_device_to_list(
pdv->pdv_sd = sd;
dev = transport_add_device_to_core_hba(hba, &pscsi_template,
- se_dev, dev_flags, (void *)pdv,
+ se_dev, dev_flags, pdv,
&dev_limits, NULL, NULL);
if (!(dev)) {
pdv->pdv_sd = NULL;
@@ -394,7 +394,7 @@ static void *pscsi_allocate_virtdevice(struct se_hba *hba, const char *name)
pdv->pdv_se_hba = hba;
printk(KERN_INFO "PSCSI: Allocated pdv: %p for %s\n", pdv, name);
- return (void *)pdv;
+ return pdv;
}
/*
@@ -697,7 +697,7 @@ static int pscsi_transport_complete(struct se_task *task)
if (task->task_se_cmd->se_deve->lun_flags &
TRANSPORT_LUNFLAGS_READ_ONLY) {
- unsigned char *buf = task->task_se_cmd->t_task->t_task_buf;
+ unsigned char *buf = task->task_se_cmd->t_task.t_task_buf;
if (cdb[0] == MODE_SENSE_10) {
if (!(buf[3] & 0x80))
@@ -763,7 +763,7 @@ static struct se_task *
pscsi_alloc_task(struct se_cmd *cmd)
{
struct pscsi_plugin_task *pt;
- unsigned char *cdb = cmd->t_task->t_task_cdb;
+ unsigned char *cdb = cmd->t_task.t_task_cdb;
pt = kzalloc(sizeof(struct pscsi_plugin_task), GFP_KERNEL);
if (!pt) {
@@ -776,7 +776,7 @@ pscsi_alloc_task(struct se_cmd *cmd)
* allocate the extended CDB buffer for per struct se_task context
* pt->pscsi_cdb now.
*/
- if (cmd->t_task->t_task_cdb != cmd->t_task->__t_task_cdb) {
+ if (cmd->t_task.t_task_cdb != cmd->t_task.__t_task_cdb) {
pt->pscsi_cdb = kzalloc(scsi_command_size(cdb), GFP_KERNEL);
if (!(pt->pscsi_cdb)) {
@@ -812,7 +812,7 @@ static inline void pscsi_blk_init_request(
* also set the end_io_data pointer.to struct se_task.
*/
req->end_io = pscsi_req_done;
- req->end_io_data = (void *)task;
+ req->end_io_data = task;
/*
* Load the referenced struct se_task's SCSI CDB into
* include/linux/blkdev.h:struct request->cmd
@@ -822,7 +822,7 @@ static inline void pscsi_blk_init_request(
/*
* Setup pointer for outgoing sense data.
*/
- req->sense = (void *)&pt->pscsi_sense[0];
+ req->sense = &pt->pscsi_sense[0];
req->sense_len = 0;
}
@@ -889,7 +889,7 @@ static void pscsi_free_task(struct se_task *task)
* Release the extended CDB allocation from pscsi_alloc_task()
* if one exists.
*/
- if (cmd->t_task->t_task_cdb != cmd->t_task->__t_task_cdb)
+ if (cmd->t_task.t_task_cdb != cmd->t_task.__t_task_cdb)
kfree(pt->pscsi_cdb);
/*
* We do not release the bio(s) here associated with this task, as
@@ -1266,7 +1266,7 @@ static int pscsi_map_task_non_SG(struct se_task *task)
return 0;
ret = blk_rq_map_kern(pdv->pdv_sd->request_queue,
- pt->pscsi_req, cmd->t_task->t_task_buf,
+ pt->pscsi_req, cmd->t_task.t_task_buf,
task->task_size, GFP_KERNEL);
if (ret < 0) {
printk(KERN_ERR "PSCSI: blk_rq_map_kern() failed: %d\n", ret);
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index fbf06c3994f..384a8e2083e 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -66,7 +66,7 @@ static int rd_attach_hba(struct se_hba *hba, u32 host_id)
rd_host->rd_host_id = host_id;
- hba->hba_ptr = (void *) rd_host;
+ hba->hba_ptr = rd_host;
printk(KERN_INFO "CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
@@ -271,7 +271,7 @@ static struct se_device *rd_create_virtdevice(
dev = transport_add_device_to_core_hba(hba,
(rd_dev->rd_direct) ? &rd_dr_template :
- &rd_mcp_template, se_dev, dev_flags, (void *)rd_dev,
+ &rd_mcp_template, se_dev, dev_flags, rd_dev,
&dev_limits, prod, rev);
if (!(dev))
goto fail;
@@ -336,7 +336,7 @@ rd_alloc_task(struct se_cmd *cmd)
printk(KERN_ERR "Unable to allocate struct rd_request\n");
return NULL;
}
- rd_req->rd_dev = cmd->se_lun->lun_se_dev->dev_ptr;
+ rd_req->rd_dev = cmd->se_dev->dev_ptr;
return &rd_req->rd_task;
}
@@ -737,7 +737,7 @@ check_eot:
}
out:
- task->task_se_cmd->t_task->t_tasks_se_num += *se_mem_cnt;
+ task->task_se_cmd->t_task.t_tasks_se_num += *se_mem_cnt;
#ifdef DEBUG_RAMDISK_DR
printk(KERN_INFO "RD_DR - Allocated %u struct se_mem segments for task\n",
*se_mem_cnt);
@@ -819,7 +819,7 @@ static int rd_DIRECT_without_offset(
}
out:
- task->task_se_cmd->t_task->t_tasks_se_num += *se_mem_cnt;
+ task->task_se_cmd->t_task.t_tasks_se_num += *se_mem_cnt;
#ifdef DEBUG_RAMDISK_DR
printk(KERN_INFO "RD_DR - Allocated %u struct se_mem segments for task\n",
*se_mem_cnt);
@@ -880,14 +880,14 @@ static int rd_DIRECT_do_se_mem_map(
* across multiple struct se_task->task_sg[].
*/
ret = transport_init_task_sg(task,
- list_entry(cmd->t_task->t_mem_list->next,
+ list_first_entry(&cmd->t_task.t_mem_list,
struct se_mem, se_list),
task_offset);
if (ret <= 0)
return ret;
return transport_map_mem_to_sg(task, se_mem_list, task->task_sg,
- list_entry(cmd->t_task->t_mem_list->next,
+ list_first_entry(&cmd->t_task.t_mem_list,
struct se_mem, se_list),
out_se_mem, se_mem_cnt, task_offset_in);
}
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index 2f73749b815..e1f99f75ac3 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -113,15 +113,14 @@ int core_tmr_lun_reset(
struct list_head *preempt_and_abort_list,
struct se_cmd *prout_cmd)
{
- struct se_cmd *cmd;
- struct se_queue_req *qr, *qr_tmp;
+ struct se_cmd *cmd, *tcmd;
struct se_node_acl *tmr_nacl = NULL;
struct se_portal_group *tmr_tpg = NULL;
struct se_queue_obj *qobj = &dev->dev_queue_obj;
struct se_tmr_req *tmr_p, *tmr_pp;
struct se_task *task, *task_tmp;
unsigned long flags;
- int fe_count, state, tas;
+ int fe_count, tas;
/*
* TASK_ABORTED status bit, this is configurable via ConfigFS
* struct se_device attributes. spc4r17 section 7.4.6 Control mode page
@@ -179,14 +178,14 @@ int core_tmr_lun_reset(
continue;
spin_unlock(&dev->se_tmr_lock);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (!(atomic_read(&cmd->t_task->t_transport_active))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (!(atomic_read(&cmd->t_task.t_transport_active))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
spin_lock(&dev->se_tmr_lock);
continue;
}
if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
spin_lock(&dev->se_tmr_lock);
continue;
}
@@ -194,7 +193,7 @@ int core_tmr_lun_reset(
" Response: 0x%02x, t_state: %d\n",
(preempt_and_abort_list) ? "Preempt" : "", tmr_p,
tmr_p->function, tmr_p->response, cmd->t_state);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_cmd_finish_abort_tmr(cmd);
spin_lock(&dev->se_tmr_lock);
@@ -230,12 +229,6 @@ int core_tmr_lun_reset(
}
cmd = task->task_se_cmd;
- if (!cmd->t_task) {
- printk(KERN_ERR "cmd->t_task is NULL for task: %p cmd:"
- " %p ITT: 0x%08x\n", task, cmd,
- cmd->se_tfo->get_task_tag(cmd));
- continue;
- }
/*
* For PREEMPT_AND_ABORT usage, only process commands
* with a matching reservation key.
@@ -254,38 +247,38 @@ int core_tmr_lun_reset(
atomic_set(&task->task_state_active, 0);
spin_unlock_irqrestore(&dev->execute_task_lock, flags);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
DEBUG_LR("LUN_RESET: %s cmd: %p task: %p"
" ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state/"
"def_t_state: %d/%d cdb: 0x%02x\n",
(preempt_and_abort_list) ? "Preempt" : "", cmd, task,
cmd->se_tfo->get_task_tag(cmd), 0,
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
- cmd->deferred_t_state, cmd->t_task->t_task_cdb[0]);
+ cmd->deferred_t_state, cmd->t_task.t_task_cdb[0]);
DEBUG_LR("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
" t_task_cdbs: %d t_task_cdbs_left: %d"
" t_task_cdbs_sent: %d -- t_transport_active: %d"
" t_transport_stop: %d t_transport_sent: %d\n",
cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key,
- cmd->t_task->t_task_cdbs,
- atomic_read(&cmd->t_task->t_task_cdbs_left),
- atomic_read(&cmd->t_task->t_task_cdbs_sent),
- atomic_read(&cmd->t_task->t_transport_active),
- atomic_read(&cmd->t_task->t_transport_stop),
- atomic_read(&cmd->t_task->t_transport_sent));
+ cmd->t_task.t_task_cdbs,
+ atomic_read(&cmd->t_task.t_task_cdbs_left),
+ atomic_read(&cmd->t_task.t_task_cdbs_sent),
+ atomic_read(&cmd->t_task.t_transport_active),
+ atomic_read(&cmd->t_task.t_transport_stop),
+ atomic_read(&cmd->t_task.t_transport_sent));
if (atomic_read(&task->task_active)) {
atomic_set(&task->task_stop, 1);
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
DEBUG_LR("LUN_RESET: Waiting for task: %p to shutdown"
" for dev: %p\n", task, dev);
wait_for_completion(&task->task_stop_comp);
DEBUG_LR("LUN_RESET Completed task: %p shutdown for"
" dev: %p\n", task, dev);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- atomic_dec(&cmd->t_task->t_task_cdbs_left);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ atomic_dec(&cmd->t_task.t_task_cdbs_left);
atomic_set(&task->task_active, 0);
atomic_set(&task->task_stop, 0);
@@ -295,24 +288,24 @@ int core_tmr_lun_reset(
}
__transport_stop_task_timer(task, &flags);
- if (!(atomic_dec_and_test(&cmd->t_task->t_task_cdbs_ex_left))) {
+ if (!(atomic_dec_and_test(&cmd->t_task.t_task_cdbs_ex_left))) {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
DEBUG_LR("LUN_RESET: Skipping task: %p, dev: %p for"
" t_task_cdbs_ex_left: %d\n", task, dev,
- atomic_read(&cmd->t_task->t_task_cdbs_ex_left));
+ atomic_read(&cmd->t_task.t_task_cdbs_ex_left));
spin_lock_irqsave(&dev->execute_task_lock, flags);
continue;
}
- fe_count = atomic_read(&cmd->t_task->t_fe_count);
+ fe_count = atomic_read(&cmd->t_task.t_fe_count);
- if (atomic_read(&cmd->t_task->t_transport_active)) {
+ if (atomic_read(&cmd->t_task.t_transport_active)) {
DEBUG_LR("LUN_RESET: got t_transport_active = 1 for"
" task: %p, t_fe_count: %d dev: %p\n", task,
fe_count, dev);
- atomic_set(&cmd->t_task->t_transport_aborted, 1);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ atomic_set(&cmd->t_task.t_transport_aborted, 1);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
@@ -321,8 +314,8 @@ int core_tmr_lun_reset(
}
DEBUG_LR("LUN_RESET: Got t_transport_active = 0 for task: %p,"
" t_fe_count: %d dev: %p\n", task, fe_count, dev);
- atomic_set(&cmd->t_task->t_transport_aborted, 1);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ atomic_set(&cmd->t_task.t_transport_aborted, 1);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
spin_lock_irqsave(&dev->execute_task_lock, flags);
@@ -337,20 +330,7 @@ int core_tmr_lun_reset(
* reference, otherwise the struct se_cmd is released.
*/
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
- list_for_each_entry_safe(qr, qr_tmp, &qobj->qobj_list, qr_list) {
- cmd = (struct se_cmd *)qr->cmd;
- if (!(cmd)) {
- /*
- * Skip these for non PREEMPT_AND_ABORT usage..
- */
- if (preempt_and_abort_list != NULL)
- continue;
-
- atomic_dec(&qobj->queue_cnt);
- list_del(&qr->qr_list);
- kfree(qr);
- continue;
- }
+ list_for_each_entry_safe(cmd, tcmd, &qobj->qobj_list, se_queue_node) {
/*
* For PREEMPT_AND_ABORT usage, only process commands
* with a matching reservation key.
@@ -365,18 +345,15 @@ int core_tmr_lun_reset(
if (prout_cmd == cmd)
continue;
- atomic_dec(&cmd->t_task->t_transport_queue_active);
+ atomic_dec(&cmd->t_task.t_transport_queue_active);
atomic_dec(&qobj->queue_cnt);
- list_del(&qr->qr_list);
+ list_del(&cmd->se_queue_node);
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
- state = qr->state;
- kfree(qr);
-
DEBUG_LR("LUN_RESET: %s from Device Queue: cmd: %p t_state:"
" %d t_fe_count: %d\n", (preempt_and_abort_list) ?
- "Preempt" : "", cmd, state,
- atomic_read(&cmd->t_task->t_fe_count));
+ "Preempt" : "", cmd, cmd->t_state,
+ atomic_read(&cmd->t_task.t_fe_count));
/*
* Signal that the command has failed via cmd->se_cmd_flags,
* and call TFO->new_cmd_failure() to wakeup any fabric
@@ -388,7 +365,7 @@ int core_tmr_lun_reset(
transport_new_cmd_failure(cmd);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas,
- atomic_read(&cmd->t_task->t_fe_count));
+ atomic_read(&cmd->t_task.t_fe_count));
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
}
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 6f5d4dfa14e..d0cd6016d3b 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -201,7 +201,7 @@ struct kmem_cache *t10_alua_tg_pt_gp_mem_cache;
typedef int (*map_func_t)(struct se_task *, u32);
static int transport_generic_write_pending(struct se_cmd *);
-static int transport_processing_thread(void *);
+static int transport_processing_thread(void *param);
static int __transport_execute_tasks(struct se_device *dev);
static void transport_complete_task_attr(struct se_cmd *cmd);
static void transport_direct_request_timeout(struct se_cmd *cmd);
@@ -215,9 +215,8 @@ static int transport_generic_get_mem(struct se_cmd *cmd, u32 length,
static int transport_generic_remove(struct se_cmd *cmd,
int release_to_pool, int session_reinstatement);
static int transport_get_sectors(struct se_cmd *cmd);
-static struct list_head *transport_init_se_mem_list(void);
static int transport_map_sg_to_mem(struct se_cmd *cmd,
- struct list_head *se_mem_list, void *in_mem,
+ struct list_head *se_mem_list, struct scatterlist *sgl,
u32 *se_mem_cnt);
static void transport_memcpy_se_mem_read_contig(struct se_cmd *cmd,
unsigned char *dst, struct list_head *se_mem_list);
@@ -574,7 +573,7 @@ void transport_deregister_session(struct se_session *se_sess)
EXPORT_SYMBOL(transport_deregister_session);
/*
- * Called with cmd->t_task->t_state_lock held.
+ * Called with cmd->t_task.t_state_lock held.
*/
static void transport_all_task_dev_remove_state(struct se_cmd *cmd)
{
@@ -582,10 +581,7 @@ static void transport_all_task_dev_remove_state(struct se_cmd *cmd)
struct se_task *task;
unsigned long flags;
- if (!cmd->t_task)
- return;
-
- list_for_each_entry(task, &cmd->t_task->t_task_list, t_list) {
+ list_for_each_entry(task, &cmd->t_task.t_task_list, t_list) {
dev = task->se_dev;
if (!(dev))
continue;
@@ -603,7 +599,7 @@ static void transport_all_task_dev_remove_state(struct se_cmd *cmd)
spin_unlock_irqrestore(&dev->execute_task_lock, flags);
atomic_set(&task->task_state_active, 0);
- atomic_dec(&cmd->t_task->t_task_cdbs_ex_left);
+ atomic_dec(&cmd->t_task.t_task_cdbs_ex_left);
}
}
@@ -622,32 +618,32 @@ static int transport_cmd_check_stop(
{
unsigned long flags;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
/*
* Determine if IOCTL context caller in requesting the stopping of this
* command for LUN shutdown purposes.
*/
- if (atomic_read(&cmd->t_task->transport_lun_stop)) {
- DEBUG_CS("%s:%d atomic_read(&cmd->t_task->transport_lun_stop)"
+ if (atomic_read(&cmd->t_task.transport_lun_stop)) {
+ DEBUG_CS("%s:%d atomic_read(&cmd->t_task.transport_lun_stop)"
" == TRUE for ITT: 0x%08x\n", __func__, __LINE__,
cmd->se_tfo->get_task_tag(cmd));
cmd->deferred_t_state = cmd->t_state;
cmd->t_state = TRANSPORT_DEFERRED_CMD;
- atomic_set(&cmd->t_task->t_transport_active, 0);
+ atomic_set(&cmd->t_task.t_transport_active, 0);
if (transport_off == 2)
transport_all_task_dev_remove_state(cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
- complete(&cmd->t_task->transport_lun_stop_comp);
+ complete(&cmd->t_task.transport_lun_stop_comp);
return 1;
}
/*
* Determine if frontend context caller is requesting the stopping of
* this command for frontend exceptions.
*/
- if (atomic_read(&cmd->t_task->t_transport_stop)) {
- DEBUG_CS("%s:%d atomic_read(&cmd->t_task->t_transport_stop) =="
+ if (atomic_read(&cmd->t_task.t_transport_stop)) {
+ DEBUG_CS("%s:%d atomic_read(&cmd->t_task.t_transport_stop) =="
" TRUE for ITT: 0x%08x\n", __func__, __LINE__,
cmd->se_tfo->get_task_tag(cmd));
@@ -662,13 +658,13 @@ static int transport_cmd_check_stop(
*/
if (transport_off == 2)
cmd->se_lun = NULL;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
- complete(&cmd->t_task->t_transport_stop_comp);
+ complete(&cmd->t_task.t_transport_stop_comp);
return 1;
}
if (transport_off) {
- atomic_set(&cmd->t_task->t_transport_active, 0);
+ atomic_set(&cmd->t_task.t_transport_active, 0);
if (transport_off == 2) {
transport_all_task_dev_remove_state(cmd);
/*
@@ -683,18 +679,18 @@ static int transport_cmd_check_stop(
*/
if (cmd->se_tfo->check_stop_free != NULL) {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
cmd->se_tfo->check_stop_free(cmd);
return 1;
}
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return 0;
} else if (t_state)
cmd->t_state = t_state;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return 0;
}
@@ -712,21 +708,21 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd)
if (!lun)
return;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (!(atomic_read(&cmd->t_task->transport_dev_active))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (!(atomic_read(&cmd->t_task.transport_dev_active))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
goto check_lun;
}
- atomic_set(&cmd->t_task->transport_dev_active, 0);
+ atomic_set(&cmd->t_task.transport_dev_active, 0);
transport_all_task_dev_remove_state(cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
check_lun:
spin_lock_irqsave(&lun->lun_cmd_lock, flags);
- if (atomic_read(&cmd->t_task->transport_lun_active)) {
- list_del(&cmd->se_lun_list);
- atomic_set(&cmd->t_task->transport_lun_active, 0);
+ if (atomic_read(&cmd->t_task.transport_lun_active)) {
+ list_del(&cmd->se_lun_node);
+ atomic_set(&cmd->t_task.transport_lun_active, 0);
#if 0
printk(KERN_INFO "Removed ITT: 0x%08x from LUN LIST[%d]\n"
cmd->se_tfo->get_task_tag(cmd), lun->unpacked_lun);
@@ -737,7 +733,7 @@ check_lun:
void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
{
- transport_remove_cmd_from_queue(cmd, &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ transport_remove_cmd_from_queue(cmd, &cmd->se_dev->dev_queue_obj);
transport_lun_remove_cmd(cmd);
if (transport_cmd_check_stop_to_fabric(cmd))
@@ -748,7 +744,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
void transport_cmd_finish_abort_tmr(struct se_cmd *cmd)
{
- transport_remove_cmd_from_queue(cmd, &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ transport_remove_cmd_from_queue(cmd, &cmd->se_dev->dev_queue_obj);
if (transport_cmd_check_stop_to_fabric(cmd))
return;
@@ -756,50 +752,36 @@ void transport_cmd_finish_abort_tmr(struct se_cmd *cmd)
transport_generic_remove(cmd, 0, 0);
}
-static int transport_add_cmd_to_queue(
+static void transport_add_cmd_to_queue(
struct se_cmd *cmd,
int t_state)
{
struct se_device *dev = cmd->se_dev;
struct se_queue_obj *qobj = &dev->dev_queue_obj;
- struct se_queue_req *qr;
unsigned long flags;
- qr = kzalloc(sizeof(struct se_queue_req), GFP_ATOMIC);
- if (!(qr)) {
- printk(KERN_ERR "Unable to allocate memory for"
- " struct se_queue_req\n");
- return -ENOMEM;
- }
- INIT_LIST_HEAD(&qr->qr_list);
-
- qr->cmd = cmd;
- qr->state = t_state;
+ INIT_LIST_HEAD(&cmd->se_queue_node);
if (t_state) {
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
cmd->t_state = t_state;
- atomic_set(&cmd->t_task->t_transport_active, 1);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ atomic_set(&cmd->t_task.t_transport_active, 1);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
}
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
- list_add_tail(&qr->qr_list, &qobj->qobj_list);
- atomic_inc(&cmd->t_task->t_transport_queue_active);
+ list_add_tail(&cmd->se_queue_node, &qobj->qobj_list);
+ atomic_inc(&cmd->t_task.t_transport_queue_active);
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
atomic_inc(&qobj->queue_cnt);
wake_up_interruptible(&qobj->thread_wq);
- return 0;
}
-/*
- * Called with struct se_queue_obj->cmd_queue_lock held.
- */
-static struct se_queue_req *
-transport_get_qr_from_queue(struct se_queue_obj *qobj)
+static struct se_cmd *
+transport_get_cmd_from_queue(struct se_queue_obj *qobj)
{
- struct se_queue_req *qr;
+ struct se_cmd *cmd;
unsigned long flags;
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
@@ -807,47 +789,42 @@ transport_get_qr_from_queue(struct se_queue_obj *qobj)
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
return NULL;
}
+ cmd = list_first_entry(&qobj->qobj_list, struct se_cmd, se_queue_node);
- list_for_each_entry(qr, &qobj->qobj_list, qr_list)
- break;
+ atomic_dec(&cmd->t_task.t_transport_queue_active);
- if (qr->cmd)
- atomic_dec(&qr->cmd->t_task->t_transport_queue_active);
-
- list_del(&qr->qr_list);
+ list_del(&cmd->se_queue_node);
atomic_dec(&qobj->queue_cnt);
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
- return qr;
+ return cmd;
}
static void transport_remove_cmd_from_queue(struct se_cmd *cmd,
struct se_queue_obj *qobj)
{
- struct se_queue_req *qr = NULL, *qr_p = NULL;
+ struct se_cmd *t;
unsigned long flags;
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
- if (!(atomic_read(&cmd->t_task->t_transport_queue_active))) {
+ if (!(atomic_read(&cmd->t_task.t_transport_queue_active))) {
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
return;
}
- list_for_each_entry_safe(qr, qr_p, &qobj->qobj_list, qr_list) {
- if (qr->cmd != cmd)
- continue;
-
- atomic_dec(&qr->cmd->t_task->t_transport_queue_active);
- atomic_dec(&qobj->queue_cnt);
- list_del(&qr->qr_list);
- kfree(qr);
- }
+ list_for_each_entry(t, &qobj->qobj_list, se_queue_node)
+ if (t == cmd) {
+ atomic_dec(&cmd->t_task.t_transport_queue_active);
+ atomic_dec(&qobj->queue_cnt);
+ list_del(&cmd->se_queue_node);
+ break;
+ }
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
- if (atomic_read(&cmd->t_task->t_transport_queue_active)) {
+ if (atomic_read(&cmd->t_task.t_transport_queue_active)) {
printk(KERN_ERR "ITT: 0x%08x t_transport_queue_active: %d\n",
cmd->se_tfo->get_task_tag(cmd),
- atomic_read(&cmd->t_task->t_transport_queue_active));
+ atomic_read(&cmd->t_task.t_transport_queue_active));
}
}
@@ -857,7 +834,7 @@ static void transport_remove_cmd_from_queue(struct se_cmd *cmd,
*/
void transport_complete_sync_cache(struct se_cmd *cmd, int good)
{
- struct se_task *task = list_entry(cmd->t_task->t_task_list.next,
+ struct se_task *task = list_entry(cmd->t_task.t_task_list.next,
struct se_task, t_list);
if (good) {
@@ -887,12 +864,12 @@ void transport_complete_task(struct se_task *task, int success)
unsigned long flags;
#if 0
printk(KERN_INFO "task: %p CDB: 0x%02x obj_ptr: %p\n", task,
- cmd->t_task->t_task_cdb[0], dev);
+ cmd->t_task.t_task_cdb[0], dev);
#endif
if (dev)
atomic_inc(&dev->depth_left);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
atomic_set(&task->task_active, 0);
/*
@@ -914,14 +891,14 @@ void transport_complete_task(struct se_task *task, int success)
*/
if (atomic_read(&task->task_stop)) {
/*
- * Decrement cmd->t_task->t_se_count if this task had
+ * Decrement cmd->t_task.t_se_count if this task had
* previously thrown its timeout exception handler.
*/
if (atomic_read(&task->task_timeout)) {
- atomic_dec(&cmd->t_task->t_se_count);
+ atomic_dec(&cmd->t_task.t_se_count);
atomic_set(&task->task_timeout, 0);
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
complete(&task->task_stop_comp);
return;
@@ -933,33 +910,33 @@ void transport_complete_task(struct se_task *task, int success)
*/
if (atomic_read(&task->task_timeout)) {
if (!(atomic_dec_and_test(
- &cmd->t_task->t_task_cdbs_timeout_left))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ &cmd->t_task.t_task_cdbs_timeout_left))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
return;
}
t_state = TRANSPORT_COMPLETE_TIMEOUT;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_add_cmd_to_queue(cmd, t_state);
return;
}
- atomic_dec(&cmd->t_task->t_task_cdbs_timeout_left);
+ atomic_dec(&cmd->t_task.t_task_cdbs_timeout_left);
/*
* Decrement the outstanding t_task_cdbs_left count. The last
* struct se_task from struct se_cmd will complete itself into the
* device queue depending upon int success.
*/
- if (!(atomic_dec_and_test(&cmd->t_task->t_task_cdbs_left))) {
+ if (!(atomic_dec_and_test(&cmd->t_task.t_task_cdbs_left))) {
if (!success)
- cmd->t_task->t_tasks_failed = 1;
+ cmd->t_task.t_tasks_failed = 1;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return;
}
- if (!success || cmd->t_task->t_tasks_failed) {
+ if (!success || cmd->t_task.t_tasks_failed) {
t_state = TRANSPORT_COMPLETE_FAILURE;
if (!task->task_error_status) {
task->task_error_status =
@@ -968,10 +945,10 @@ void transport_complete_task(struct se_task *task, int success)
PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
}
} else {
- atomic_set(&cmd->t_task->t_transport_complete, 1);
+ atomic_set(&cmd->t_task.t_transport_complete, 1);
t_state = TRANSPORT_COMPLETE_OK;
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_add_cmd_to_queue(cmd, t_state);
}
@@ -1064,8 +1041,8 @@ static void transport_add_tasks_to_state_queue(struct se_cmd *cmd)
struct se_task *task;
unsigned long flags;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- list_for_each_entry(task, &cmd->t_task->t_task_list, t_list) {
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ list_for_each_entry(task, &cmd->t_task.t_task_list, t_list) {
dev = task->se_dev;
if (atomic_read(&task->task_state_active))
@@ -1081,17 +1058,17 @@ static void transport_add_tasks_to_state_queue(struct se_cmd *cmd)
spin_unlock(&dev->execute_task_lock);
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
}
static void transport_add_tasks_from_cmd(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_task *task, *task_prev = NULL;
unsigned long flags;
spin_lock_irqsave(&dev->execute_task_lock, flags);
- list_for_each_entry(task, &cmd->t_task->t_task_list, t_list) {
+ list_for_each_entry(task, &cmd->t_task.t_task_list, t_list) {
if (atomic_read(&task->task_execute_queue))
continue;
/*
@@ -1184,19 +1161,15 @@ void transport_dump_dev_state(
*/
static void transport_release_all_cmds(struct se_device *dev)
{
- struct se_cmd *cmd = NULL;
- struct se_queue_req *qr = NULL, *qr_p = NULL;
+ struct se_cmd *cmd, *tcmd;
int bug_out = 0, t_state;
unsigned long flags;
spin_lock_irqsave(&dev->dev_queue_obj.cmd_queue_lock, flags);
- list_for_each_entry_safe(qr, qr_p, &dev->dev_queue_obj.qobj_list,
- qr_list) {
-
- cmd = qr->cmd;
- t_state = qr->state;
- list_del(&qr->qr_list);
- kfree(qr);
+ list_for_each_entry_safe(cmd, tcmd, &dev->dev_queue_obj.qobj_list,
+ se_queue_node) {
+ t_state = cmd->t_state;
+ list_del(&cmd->se_queue_node);
spin_unlock_irqrestore(&dev->dev_queue_obj.cmd_queue_lock,
flags);
@@ -1548,7 +1521,7 @@ struct se_device *transport_add_device_to_core_hba(
transport_init_queue_obj(&dev->dev_queue_obj);
dev->dev_flags = device_flags;
dev->dev_status |= TRANSPORT_DEVICE_DEACTIVATED;
- dev->dev_ptr = (void *) transport_dev;
+ dev->dev_ptr = transport_dev;
dev->se_hba = hba;
dev->se_sub_dev = se_dev;
dev->transport = transport;
@@ -1684,7 +1657,7 @@ transport_generic_get_task(struct se_cmd *cmd,
enum dma_data_direction data_direction)
{
struct se_task *task;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
unsigned long flags;
task = dev->transport->alloc_task(cmd);
@@ -1697,26 +1670,20 @@ transport_generic_get_task(struct se_cmd *cmd,
INIT_LIST_HEAD(&task->t_execute_list);
INIT_LIST_HEAD(&task->t_state_list);
init_completion(&task->task_stop_comp);
- task->task_no = cmd->t_task->t_tasks_no++;
+ task->task_no = cmd->t_task.t_tasks_no++;
task->task_se_cmd = cmd;
task->se_dev = dev;
task->task_data_direction = data_direction;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- list_add_tail(&task->t_list, &cmd->t_task->t_task_list);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ list_add_tail(&task->t_list, &cmd->t_task.t_task_list);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return task;
}
static int transport_generic_cmd_sequencer(struct se_cmd *, unsigned char *);
-void transport_device_setup_cmd(struct se_cmd *cmd)
-{
- cmd->se_dev = cmd->se_lun->lun_se_dev;
-}
-EXPORT_SYMBOL(transport_device_setup_cmd);
-
/*
* Used by fabric modules containing a local struct se_cmd within their
* fabric dependent per I/O descriptor.
@@ -1730,20 +1697,18 @@ void transport_init_se_cmd(
int task_attr,
unsigned char *sense_buffer)
{
- INIT_LIST_HEAD(&cmd->se_lun_list);
- INIT_LIST_HEAD(&cmd->se_delayed_list);
- INIT_LIST_HEAD(&cmd->se_ordered_list);
- /*
- * Setup t_task pointer to t_task_backstore
- */
- cmd->t_task = &cmd->t_task_backstore;
+ INIT_LIST_HEAD(&cmd->se_lun_node);
+ INIT_LIST_HEAD(&cmd->se_delayed_node);
+ INIT_LIST_HEAD(&cmd->se_ordered_node);
- INIT_LIST_HEAD(&cmd->t_task->t_task_list);
- init_completion(&cmd->t_task->transport_lun_fe_stop_comp);
- init_completion(&cmd->t_task->transport_lun_stop_comp);
- init_completion(&cmd->t_task->t_transport_stop_comp);
- spin_lock_init(&cmd->t_task->t_state_lock);
- atomic_set(&cmd->t_task->transport_dev_active, 1);
+ INIT_LIST_HEAD(&cmd->t_task.t_mem_list);
+ INIT_LIST_HEAD(&cmd->t_task.t_mem_bidi_list);
+ INIT_LIST_HEAD(&cmd->t_task.t_task_list);
+ init_completion(&cmd->t_task.transport_lun_fe_stop_comp);
+ init_completion(&cmd->t_task.transport_lun_stop_comp);
+ init_completion(&cmd->t_task.t_transport_stop_comp);
+ spin_lock_init(&cmd->t_task.t_state_lock);
+ atomic_set(&cmd->t_task.transport_dev_active, 1);
cmd->se_tfo = tfo;
cmd->se_sess = se_sess;
@@ -1760,7 +1725,7 @@ static int transport_check_alloc_task_attr(struct se_cmd *cmd)
* Check if SAM Task Attribute emulation is enabled for this
* struct se_device storage object
*/
- if (cmd->se_lun->lun_se_dev->dev_task_attr_type != SAM_TASK_ATTR_EMULATED)
+ if (cmd->se_dev->dev_task_attr_type != SAM_TASK_ATTR_EMULATED)
return 0;
if (cmd->sam_task_attr == MSG_ACA_TAG) {
@@ -1772,7 +1737,7 @@ static int transport_check_alloc_task_attr(struct se_cmd *cmd)
* Used to determine when ORDERED commands should go from
* Dormant to Active status.
*/
- cmd->se_ordered_id = atomic_inc_return(&cmd->se_lun->lun_se_dev->dev_ordered_id);
+ cmd->se_ordered_id = atomic_inc_return(&cmd->se_dev->dev_ordered_id);
smp_mb__after_atomic_inc();
DEBUG_STA("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
cmd->se_ordered_id, cmd->sam_task_attr,
@@ -1788,8 +1753,8 @@ void transport_free_se_cmd(
/*
* Check and free any extended CDB buffer that was allocated
*/
- if (se_cmd->t_task->t_task_cdb != se_cmd->t_task->__t_task_cdb)
- kfree(se_cmd->t_task->t_task_cdb);
+ if (se_cmd->t_task.t_task_cdb != se_cmd->t_task.__t_task_cdb)
+ kfree(se_cmd->t_task.t_task_cdb);
}
EXPORT_SYMBOL(transport_free_se_cmd);
@@ -1812,7 +1777,6 @@ int transport_generic_allocate_tasks(
*/
cmd->transport_wait_for_tasks = &transport_generic_wait_for_tasks;
- transport_device_setup_cmd(cmd);
/*
* Ensure that the received CDB is less than the max (252 + 8) bytes
* for VARIABLE_LENGTH_CMD
@@ -1828,26 +1792,26 @@ int transport_generic_allocate_tasks(
* allocate the additional extended CDB buffer now.. Otherwise
* setup the pointer from __t_task_cdb to t_task_cdb.
*/
- if (scsi_command_size(cdb) > sizeof(cmd->t_task->__t_task_cdb)) {
- cmd->t_task->t_task_cdb = kzalloc(scsi_command_size(cdb),
+ if (scsi_command_size(cdb) > sizeof(cmd->t_task.__t_task_cdb)) {
+ cmd->t_task.t_task_cdb = kzalloc(scsi_command_size(cdb),
GFP_KERNEL);
- if (!(cmd->t_task->t_task_cdb)) {
- printk(KERN_ERR "Unable to allocate cmd->t_task->t_task_cdb"
- " %u > sizeof(cmd->t_task->__t_task_cdb): %lu ops\n",
+ if (!(cmd->t_task.t_task_cdb)) {
+ printk(KERN_ERR "Unable to allocate cmd->t_task.t_task_cdb"
+ " %u > sizeof(cmd->t_task.__t_task_cdb): %lu ops\n",
scsi_command_size(cdb),
- (unsigned long)sizeof(cmd->t_task->__t_task_cdb));
+ (unsigned long)sizeof(cmd->t_task.__t_task_cdb));
return -ENOMEM;
}
} else
- cmd->t_task->t_task_cdb = &cmd->t_task->__t_task_cdb[0];
+ cmd->t_task.t_task_cdb = &cmd->t_task.__t_task_cdb[0];
/*
* Copy the original CDB into cmd->t_task.
*/
- memcpy(cmd->t_task->t_task_cdb, cdb, scsi_command_size(cdb));
+ memcpy(cmd->t_task.t_task_cdb, cdb, scsi_command_size(cdb));
/*
* Setup the received CDB based on SCSI defined opcodes and
* perform unit attention, persistent reservations and ALUA
- * checks for virtual device backends. The cmd->t_task->t_task_cdb
+ * checks for virtual device backends. The cmd->t_task.t_task_cdb
* pointer is expected to be setup before we reach this point.
*/
ret = transport_generic_cmd_sequencer(cmd, cdb);
@@ -1859,7 +1823,7 @@ int transport_generic_allocate_tasks(
if (transport_check_alloc_task_attr(cmd) < 0) {
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
- return -2;
+ return -EINVAL;
}
spin_lock(&cmd->se_lun->lun_sep_lock);
if (cmd->se_lun->lun_sep)
@@ -1947,7 +1911,6 @@ int transport_generic_handle_tmr(
* This is needed for early exceptions.
*/
cmd->transport_wait_for_tasks = &transport_generic_wait_for_tasks;
- transport_device_setup_cmd(cmd);
transport_add_cmd_to_queue(cmd, TRANSPORT_PROCESS_TMR);
return 0;
@@ -1973,9 +1936,9 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
/*
* No tasks remain in the execution queue
*/
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
list_for_each_entry_safe(task, task_tmp,
- &cmd->t_task->t_task_list, t_list) {
+ &cmd->t_task.t_task_list, t_list) {
DEBUG_TS("task_no[%d] - Processing task %p\n",
task->task_no, task);
/*
@@ -1984,14 +1947,14 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
*/
if (!atomic_read(&task->task_sent) &&
!atomic_read(&task->task_active)) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
transport_remove_task_from_execute_queue(task,
task->se_dev);
DEBUG_TS("task_no[%d] - Removed from execute queue\n",
task->task_no);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
continue;
}
@@ -2001,7 +1964,7 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
*/
if (atomic_read(&task->task_active)) {
atomic_set(&task->task_stop, 1);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
DEBUG_TS("task_no[%d] - Waiting to complete\n",
@@ -2010,8 +1973,8 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
DEBUG_TS("task_no[%d] - Stopped successfully\n",
task->task_no);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- atomic_dec(&cmd->t_task->t_task_cdbs_left);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ atomic_dec(&cmd->t_task.t_task_cdbs_left);
atomic_set(&task->task_active, 0);
atomic_set(&task->task_stop, 0);
@@ -2022,7 +1985,7 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
__transport_stop_task_timer(task, &flags);
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return ret;
}
@@ -2038,7 +2001,7 @@ static void transport_generic_request_failure(
{
DEBUG_GRF("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
" CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
- cmd->t_task->t_task_cdb[0]);
+ cmd->t_task.t_task_cdb[0]);
DEBUG_GRF("-----[ i_state: %d t_state/def_t_state:"
" %d/%d transport_error_status: %d\n",
cmd->se_tfo->get_cmd_state(cmd),
@@ -2047,13 +2010,13 @@ static void transport_generic_request_failure(
DEBUG_GRF("-----[ t_task_cdbs: %d t_task_cdbs_left: %d"
" t_task_cdbs_sent: %d t_task_cdbs_ex_left: %d --"
" t_transport_active: %d t_transport_stop: %d"
- " t_transport_sent: %d\n", cmd->t_task->t_task_cdbs,
- atomic_read(&cmd->t_task->t_task_cdbs_left),
- atomic_read(&cmd->t_task->t_task_cdbs_sent),
- atomic_read(&cmd->t_task->t_task_cdbs_ex_left),
- atomic_read(&cmd->t_task->t_transport_active),
- atomic_read(&cmd->t_task->t_transport_stop),
- atomic_read(&cmd->t_task->t_transport_sent));
+ " t_transport_sent: %d\n", cmd->t_task.t_task_cdbs,
+ atomic_read(&cmd->t_task.t_task_cdbs_left),
+ atomic_read(&cmd->t_task.t_task_cdbs_sent),
+ atomic_read(&cmd->t_task.t_task_cdbs_ex_left),
+ atomic_read(&cmd->t_task.t_transport_active),
+ atomic_read(&cmd->t_task.t_transport_stop),
+ atomic_read(&cmd->t_task.t_transport_sent));
transport_stop_all_task_timers(cmd);
@@ -2135,7 +2098,7 @@ static void transport_generic_request_failure(
break;
default:
printk(KERN_ERR "Unknown transport error for CDB 0x%02x: %d\n",
- cmd->t_task->t_task_cdb[0],
+ cmd->t_task.t_task_cdb[0],
cmd->transport_error_status);
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
break;
@@ -2156,19 +2119,19 @@ static void transport_direct_request_timeout(struct se_cmd *cmd)
{
unsigned long flags;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (!(atomic_read(&cmd->t_task->t_transport_timeout))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (!(atomic_read(&cmd->t_task.t_transport_timeout))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return;
}
- if (atomic_read(&cmd->t_task->t_task_cdbs_timeout_left)) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ if (atomic_read(&cmd->t_task.t_task_cdbs_timeout_left)) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return;
}
- atomic_sub(atomic_read(&cmd->t_task->t_transport_timeout),
- &cmd->t_task->t_se_count);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ atomic_sub(atomic_read(&cmd->t_task.t_transport_timeout),
+ &cmd->t_task.t_se_count);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
}
static void transport_generic_request_timeout(struct se_cmd *cmd)
@@ -2176,16 +2139,16 @@ static void transport_generic_request_timeout(struct se_cmd *cmd)
unsigned long flags;
/*
- * Reset cmd->t_task->t_se_count to allow transport_generic_remove()
+ * Reset cmd->t_task.t_se_count to allow transport_generic_remove()
* to allow last call to free memory resources.
*/
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (atomic_read(&cmd->t_task->t_transport_timeout) > 1) {
- int tmp = (atomic_read(&cmd->t_task->t_transport_timeout) - 1);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (atomic_read(&cmd->t_task.t_transport_timeout) > 1) {
+ int tmp = (atomic_read(&cmd->t_task.t_transport_timeout) - 1);
- atomic_sub(tmp, &cmd->t_task->t_se_count);
+ atomic_sub(tmp, &cmd->t_task.t_se_count);
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_generic_remove(cmd, 0, 0);
}
@@ -2201,8 +2164,8 @@ transport_generic_allocate_buf(struct se_cmd *cmd, u32 data_length)
return -ENOMEM;
}
- cmd->t_task->t_tasks_se_num = 0;
- cmd->t_task->t_task_buf = buf;
+ cmd->t_task.t_tasks_se_num = 0;
+ cmd->t_task.t_task_buf = buf;
return 0;
}
@@ -2244,9 +2207,9 @@ static void transport_set_supported_SAM_opcode(struct se_cmd *se_cmd)
{
unsigned long flags;
- spin_lock_irqsave(&se_cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&se_cmd->t_task.t_state_lock, flags);
se_cmd->se_cmd_flags |= SCF_SUPPORTED_SAM_OPCODE;
- spin_unlock_irqrestore(&se_cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&se_cmd->t_task.t_state_lock, flags);
}
/*
@@ -2260,9 +2223,9 @@ static void transport_task_timeout_handler(unsigned long data)
DEBUG_TT("transport task timeout fired! task: %p cmd: %p\n", task, cmd);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
if (task->task_flags & TF_STOP) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return;
}
task->task_flags &= ~TF_RUNNING;
@@ -2273,13 +2236,13 @@ static void transport_task_timeout_handler(unsigned long data)
if (!(atomic_read(&task->task_active))) {
DEBUG_TT("transport task: %p cmd: %p timeout task_active"
" == 0\n", task, cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return;
}
- atomic_inc(&cmd->t_task->t_se_count);
- atomic_inc(&cmd->t_task->t_transport_timeout);
- cmd->t_task->t_tasks_failed = 1;
+ atomic_inc(&cmd->t_task.t_se_count);
+ atomic_inc(&cmd->t_task.t_transport_timeout);
+ cmd->t_task.t_tasks_failed = 1;
atomic_set(&task->task_timeout, 1);
task->task_error_status = PYX_TRANSPORT_TASK_TIMEOUT;
@@ -2288,28 +2251,28 @@ static void transport_task_timeout_handler(unsigned long data)
if (atomic_read(&task->task_stop)) {
DEBUG_TT("transport task: %p cmd: %p timeout task_stop"
" == 1\n", task, cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
complete(&task->task_stop_comp);
return;
}
- if (!(atomic_dec_and_test(&cmd->t_task->t_task_cdbs_left))) {
+ if (!(atomic_dec_and_test(&cmd->t_task.t_task_cdbs_left))) {
DEBUG_TT("transport task: %p cmd: %p timeout non zero"
" t_task_cdbs_left\n", task, cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return;
}
DEBUG_TT("transport task: %p cmd: %p timeout ZERO t_task_cdbs_left\n",
task, cmd);
cmd->t_state = TRANSPORT_COMPLETE_FAILURE;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_add_cmd_to_queue(cmd, TRANSPORT_COMPLETE_FAILURE);
}
/*
- * Called with cmd->t_task->t_state_lock held.
+ * Called with cmd->t_task.t_state_lock held.
*/
static void transport_start_task_timer(struct se_task *task)
{
@@ -2339,7 +2302,7 @@ static void transport_start_task_timer(struct se_task *task)
}
/*
- * Called with spin_lock_irq(&cmd->t_task->t_state_lock) held.
+ * Called with spin_lock_irq(&cmd->t_task.t_state_lock) held.
*/
void __transport_stop_task_timer(struct se_task *task, unsigned long *flags)
{
@@ -2349,11 +2312,11 @@ void __transport_stop_task_timer(struct se_task *task, unsigned long *flags)
return;
task->task_flags |= TF_STOP;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, *flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, *flags);
del_timer_sync(&task->task_timer);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, *flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, *flags);
task->task_flags &= ~TF_RUNNING;
task->task_flags &= ~TF_STOP;
}
@@ -2363,11 +2326,11 @@ static void transport_stop_all_task_timers(struct se_cmd *cmd)
struct se_task *task = NULL, *task_tmp;
unsigned long flags;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
list_for_each_entry_safe(task, task_tmp,
- &cmd->t_task->t_task_list, t_list)
+ &cmd->t_task.t_task_list, t_list)
__transport_stop_task_timer(task, &flags);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
}
static inline int transport_tcq_window_closed(struct se_device *dev)
@@ -2391,14 +2354,14 @@ static inline int transport_tcq_window_closed(struct se_device *dev)
*/
static inline int transport_execute_task_attr(struct se_cmd *cmd)
{
- if (cmd->se_lun->lun_se_dev->dev_task_attr_type != SAM_TASK_ATTR_EMULATED)
+ if (cmd->se_dev->dev_task_attr_type != SAM_TASK_ATTR_EMULATED)
return 1;
/*
* Check for the existence of HEAD_OF_QUEUE, and if true return 1
* to allow the passed struct se_cmd list of tasks to the front of the list.
*/
if (cmd->sam_task_attr == MSG_HEAD_TAG) {
- atomic_inc(&cmd->se_lun->lun_se_dev->dev_hoq_count);
+ atomic_inc(&cmd->se_dev->dev_hoq_count);
smp_mb__after_atomic_inc();
DEBUG_STA("Added HEAD_OF_QUEUE for CDB:"
" 0x%02x, se_ordered_id: %u\n",
@@ -2406,30 +2369,30 @@ static inline int transport_execute_task_attr(struct se_cmd *cmd)
cmd->se_ordered_id);
return 1;
} else if (cmd->sam_task_attr == MSG_ORDERED_TAG) {
- spin_lock(&cmd->se_lun->lun_se_dev->ordered_cmd_lock);
- list_add_tail(&cmd->se_ordered_list,
- &cmd->se_lun->lun_se_dev->ordered_cmd_list);
- spin_unlock(&cmd->se_lun->lun_se_dev->ordered_cmd_lock);
+ spin_lock(&cmd->se_dev->ordered_cmd_lock);
+ list_add_tail(&cmd->se_ordered_node,
+ &cmd->se_dev->ordered_cmd_list);
+ spin_unlock(&cmd->se_dev->ordered_cmd_lock);
- atomic_inc(&cmd->se_lun->lun_se_dev->dev_ordered_sync);
+ atomic_inc(&cmd->se_dev->dev_ordered_sync);
smp_mb__after_atomic_inc();
DEBUG_STA("Added ORDERED for CDB: 0x%02x to ordered"
" list, se_ordered_id: %u\n",
- cmd->t_task->t_task_cdb[0],
+ cmd->t_task.t_task_cdb[0],
cmd->se_ordered_id);
/*
* Add ORDERED command to tail of execution queue if
* no other older commands exist that need to be
* completed first.
*/
- if (!(atomic_read(&cmd->se_lun->lun_se_dev->simple_cmds)))
+ if (!(atomic_read(&cmd->se_dev->simple_cmds)))
return 1;
} else {
/*
* For SIMPLE and UNTAGGED Task Attribute commands
*/
- atomic_inc(&cmd->se_lun->lun_se_dev->simple_cmds);
+ atomic_inc(&cmd->se_dev->simple_cmds);
smp_mb__after_atomic_inc();
}
/*
@@ -2437,20 +2400,20 @@ static inline int transport_execute_task_attr(struct se_cmd *cmd)
* add the dormant task(s) built for the passed struct se_cmd to the
* execution queue and become in Active state for this struct se_device.
*/
- if (atomic_read(&cmd->se_lun->lun_se_dev->dev_ordered_sync) != 0) {
+ if (atomic_read(&cmd->se_dev->dev_ordered_sync) != 0) {
/*
* Otherwise, add cmd w/ tasks to delayed cmd queue that
* will be drained upon completion of HEAD_OF_QUEUE task.
*/
- spin_lock(&cmd->se_lun->lun_se_dev->delayed_cmd_lock);
+ spin_lock(&cmd->se_dev->delayed_cmd_lock);
cmd->se_cmd_flags |= SCF_DELAYED_CMD_FROM_SAM_ATTR;
- list_add_tail(&cmd->se_delayed_list,
- &cmd->se_lun->lun_se_dev->delayed_cmd_list);
- spin_unlock(&cmd->se_lun->lun_se_dev->delayed_cmd_lock);
+ list_add_tail(&cmd->se_delayed_node,
+ &cmd->se_dev->delayed_cmd_list);
+ spin_unlock(&cmd->se_dev->delayed_cmd_lock);
DEBUG_STA("Added CDB: 0x%02x Task Attr: 0x%02x to"
" delayed CMD list, se_ordered_id: %u\n",
- cmd->t_task->t_task_cdb[0], cmd->sam_task_attr,
+ cmd->t_task.t_task_cdb[0], cmd->sam_task_attr,
cmd->se_ordered_id);
/*
* Return zero to let transport_execute_tasks() know
@@ -2505,7 +2468,7 @@ static int transport_execute_tasks(struct se_cmd *cmd)
* storage object.
*/
execute_tasks:
- __transport_execute_tasks(cmd->se_lun->lun_se_dev);
+ __transport_execute_tasks(cmd->se_dev);
return 0;
}
@@ -2548,17 +2511,17 @@ check_depth:
cmd = task->task_se_cmd;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
atomic_set(&task->task_active, 1);
atomic_set(&task->task_sent, 1);
- atomic_inc(&cmd->t_task->t_task_cdbs_sent);
+ atomic_inc(&cmd->t_task.t_task_cdbs_sent);
- if (atomic_read(&cmd->t_task->t_task_cdbs_sent) ==
- cmd->t_task->t_task_cdbs)
+ if (atomic_read(&cmd->t_task.t_task_cdbs_sent) ==
+ cmd->t_task.t_task_cdbs)
atomic_set(&cmd->transport_sent, 1);
transport_start_task_timer(task);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
/*
* The struct se_cmd->transport_emulate_cdb() function pointer is used
* to grab REPORT_LUNS and other CDBs we want to handle before they hit the
@@ -2623,10 +2586,10 @@ void transport_new_cmd_failure(struct se_cmd *se_cmd)
* Any unsolicited data will get dumped for failed command inside of
* the fabric plugin
*/
- spin_lock_irqsave(&se_cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&se_cmd->t_task.t_state_lock, flags);
se_cmd->se_cmd_flags |= SCF_SE_CMD_FAILED;
se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
- spin_unlock_irqrestore(&se_cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&se_cmd->t_task.t_state_lock, flags);
se_cmd->se_tfo->new_cmd_failure(se_cmd);
}
@@ -2638,7 +2601,7 @@ static inline u32 transport_get_sectors_6(
struct se_cmd *cmd,
int *ret)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
/*
* Assume TYPE_DISK for non struct se_device objects.
@@ -2666,7 +2629,7 @@ static inline u32 transport_get_sectors_10(
struct se_cmd *cmd,
int *ret)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
/*
* Assume TYPE_DISK for non struct se_device objects.
@@ -2696,7 +2659,7 @@ static inline u32 transport_get_sectors_12(
struct se_cmd *cmd,
int *ret)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
/*
* Assume TYPE_DISK for non struct se_device objects.
@@ -2726,7 +2689,7 @@ static inline u32 transport_get_sectors_16(
struct se_cmd *cmd,
int *ret)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
/*
* Assume TYPE_DISK for non struct se_device objects.
@@ -2768,7 +2731,7 @@ static inline u32 transport_get_size(
unsigned char *cdb,
struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
if (dev->transport->get_device_type(dev) == TYPE_TAPE) {
if (cdb[1] & 1) { /* sectors */
@@ -2836,17 +2799,17 @@ static void transport_xor_callback(struct se_cmd *cmd)
return;
}
/*
- * Copy the scatterlist WRITE buffer located at cmd->t_task->t_mem_list
+ * Copy the scatterlist WRITE buffer located at cmd->t_task.t_mem_list
* into the locally allocated *buf
*/
- transport_memcpy_se_mem_read_contig(cmd, buf, cmd->t_task->t_mem_list);
+ transport_memcpy_se_mem_read_contig(cmd, buf, &cmd->t_task.t_mem_list);
/*
* Now perform the XOR against the BIDI read memory located at
- * cmd->t_task->t_mem_bidi_list
+ * cmd->t_task.t_mem_bidi_list
*/
offset = 0;
- list_for_each_entry(se_mem, cmd->t_task->t_mem_bidi_list, se_list) {
+ list_for_each_entry(se_mem, &cmd->t_task.t_mem_bidi_list, se_list) {
addr = (unsigned char *)kmap_atomic(se_mem->se_page, KM_USER0);
if (!(addr))
goto out;
@@ -2874,14 +2837,14 @@ static int transport_get_sense_data(struct se_cmd *cmd)
WARN_ON(!cmd->se_lun);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return 0;
}
list_for_each_entry_safe(task, task_tmp,
- &cmd->t_task->t_task_list, t_list) {
+ &cmd->t_task.t_task_list, t_list) {
if (!task->task_sense)
continue;
@@ -2903,12 +2866,12 @@ static int transport_get_sense_data(struct se_cmd *cmd)
cmd->se_tfo->get_task_tag(cmd), task->task_no);
continue;
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
offset = cmd->se_tfo->set_fabric_sense_len(cmd,
TRANSPORT_SENSE_BUFFER);
- memcpy((void *)&buffer[offset], (void *)sense_buffer,
+ memcpy(&buffer[offset], sense_buffer,
TRANSPORT_SENSE_BUFFER);
cmd->scsi_status = task->task_scsi_status;
/* Automatically padded */
@@ -2921,7 +2884,7 @@ static int transport_get_sense_data(struct se_cmd *cmd)
cmd->scsi_status);
return 0;
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return -1;
}
@@ -2958,7 +2921,7 @@ transport_handle_reservation_conflict(struct se_cmd *cmd)
core_scsi3_ua_allocate(cmd->se_sess->se_node_acl,
cmd->orig_fe_lun, 0x2C,
ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
- return -2;
+ return -EINVAL;
}
/* transport_generic_cmd_sequencer():
@@ -2975,7 +2938,7 @@ static int transport_generic_cmd_sequencer(
struct se_cmd *cmd,
unsigned char *cdb)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_subsystem_dev *su_dev = dev->se_sub_dev;
int ret = 0, sector_ret = 0, passthrough;
u32 sectors = 0, size = 0, pr_reg_type = 0;
@@ -2989,7 +2952,7 @@ static int transport_generic_cmd_sequencer(
&transport_nop_wait_for_tasks;
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->scsi_sense_reason = TCM_CHECK_CONDITION_UNIT_ATTENTION;
- return -2;
+ return -EINVAL;
}
/*
* Check status of Asymmetric Logical Unit Assignment port
@@ -3011,7 +2974,7 @@ static int transport_generic_cmd_sequencer(
transport_set_sense_codes(cmd, 0x04, alua_ascq);
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->scsi_sense_reason = TCM_CHECK_CONDITION_NOT_READY;
- return -2;
+ return -EINVAL;
}
goto out_invalid_cdb_field;
}
@@ -3036,7 +2999,7 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_6;
- cmd->t_task->t_task_lba = transport_lba_21(cdb);
+ cmd->t_task.t_task_lba = transport_lba_21(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case READ_10:
@@ -3045,7 +3008,7 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_10;
- cmd->t_task->t_task_lba = transport_lba_32(cdb);
+ cmd->t_task.t_task_lba = transport_lba_32(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case READ_12:
@@ -3054,7 +3017,7 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_12;
- cmd->t_task->t_task_lba = transport_lba_32(cdb);
+ cmd->t_task.t_task_lba = transport_lba_32(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case READ_16:
@@ -3063,7 +3026,7 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_16;
- cmd->t_task->t_task_lba = transport_lba_64(cdb);
+ cmd->t_task.t_task_lba = transport_lba_64(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case WRITE_6:
@@ -3072,7 +3035,7 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_6;
- cmd->t_task->t_task_lba = transport_lba_21(cdb);
+ cmd->t_task.t_task_lba = transport_lba_21(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case WRITE_10:
@@ -3081,8 +3044,8 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_10;
- cmd->t_task->t_task_lba = transport_lba_32(cdb);
- cmd->t_task->t_tasks_fua = (cdb[1] & 0x8);
+ cmd->t_task.t_task_lba = transport_lba_32(cdb);
+ cmd->t_task.t_tasks_fua = (cdb[1] & 0x8);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case WRITE_12:
@@ -3091,8 +3054,8 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_12;
- cmd->t_task->t_task_lba = transport_lba_32(cdb);
- cmd->t_task->t_tasks_fua = (cdb[1] & 0x8);
+ cmd->t_task.t_task_lba = transport_lba_32(cdb);
+ cmd->t_task.t_tasks_fua = (cdb[1] & 0x8);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case WRITE_16:
@@ -3101,20 +3064,20 @@ static int transport_generic_cmd_sequencer(
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_16;
- cmd->t_task->t_task_lba = transport_lba_64(cdb);
- cmd->t_task->t_tasks_fua = (cdb[1] & 0x8);
+ cmd->t_task.t_task_lba = transport_lba_64(cdb);
+ cmd->t_task.t_tasks_fua = (cdb[1] & 0x8);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case XDWRITEREAD_10:
if ((cmd->data_direction != DMA_TO_DEVICE) ||
- !(cmd->t_task->t_tasks_bidi))
+ !(cmd->t_task.t_tasks_bidi))
goto out_invalid_cdb_field;
sectors = transport_get_sectors_10(cdb, cmd, &sector_ret);
if (sector_ret)
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->transport_split_cdb = &split_cdb_XX_10;
- cmd->t_task->t_task_lba = transport_lba_32(cdb);
+ cmd->t_task.t_task_lba = transport_lba_32(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
passthrough = (dev->transport->transport_type ==
TRANSPORT_PLUGIN_PHBA_PDEV);
@@ -3127,7 +3090,7 @@ static int transport_generic_cmd_sequencer(
* Setup BIDI XOR callback to be run during transport_generic_complete_ok()
*/
cmd->transport_complete_callback = &transport_xor_callback;
- cmd->t_task->t_tasks_fua = (cdb[1] & 0x8);
+ cmd->t_task.t_tasks_fua = (cdb[1] & 0x8);
break;
case VARIABLE_LENGTH_CMD:
service_action = get_unaligned_be16(&cdb[8]);
@@ -3149,7 +3112,7 @@ static int transport_generic_cmd_sequencer(
* XDWRITE_READ_32 logic.
*/
cmd->transport_split_cdb = &split_cdb_XX_32;
- cmd->t_task->t_task_lba = transport_lba_64_ext(cdb);
+ cmd->t_task.t_task_lba = transport_lba_64_ext(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
/*
@@ -3163,14 +3126,14 @@ static int transport_generic_cmd_sequencer(
* transport_generic_complete_ok()
*/
cmd->transport_complete_callback = &transport_xor_callback;
- cmd->t_task->t_tasks_fua = (cdb[10] & 0x8);
+ cmd->t_task.t_tasks_fua = (cdb[10] & 0x8);
break;
case WRITE_SAME_32:
sectors = transport_get_sectors_32(cdb, cmd, &sector_ret);
if (sector_ret)
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
- cmd->t_task->t_task_lba = get_unaligned_be64(&cdb[12]);
+ cmd->t_task.t_task_lba = get_unaligned_be64(&cdb[12]);
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
/*
@@ -3299,7 +3262,7 @@ static int transport_generic_cmd_sequencer(
* Do implict HEAD_OF_QUEUE processing for INQUIRY.
* See spc4r17 section 5.3
*/
- if (cmd->se_lun->lun_se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
+ if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
cmd->sam_task_attr = MSG_HEAD_TAG;
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_NONSG_IO_CDB;
break;
@@ -3405,10 +3368,10 @@ static int transport_generic_cmd_sequencer(
*/
if (cdb[0] == SYNCHRONIZE_CACHE) {
sectors = transport_get_sectors_10(cdb, cmd, &sector_ret);
- cmd->t_task->t_task_lba = transport_lba_32(cdb);
+ cmd->t_task.t_task_lba = transport_lba_32(cdb);
} else {
sectors = transport_get_sectors_16(cdb, cmd, &sector_ret);
- cmd->t_task->t_task_lba = transport_lba_64(cdb);
+ cmd->t_task.t_task_lba = transport_lba_64(cdb);
}
if (sector_ret)
goto out_unsupported_cdb;
@@ -3454,7 +3417,7 @@ static int transport_generic_cmd_sequencer(
if (sector_ret)
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
- cmd->t_task->t_task_lba = get_unaligned_be16(&cdb[2]);
+ cmd->t_task.t_task_lba = get_unaligned_be16(&cdb[2]);
passthrough = (dev->transport->transport_type ==
TRANSPORT_PLUGIN_PHBA_PDEV);
/*
@@ -3507,7 +3470,7 @@ static int transport_generic_cmd_sequencer(
* Do implict HEAD_OF_QUEUE processing for REPORT_LUNS
* See spc4r17 section 5.3
*/
- if (cmd->se_lun->lun_se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
+ if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
cmd->sam_task_attr = MSG_HEAD_TAG;
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_NONSG_IO_CDB;
break;
@@ -3560,11 +3523,11 @@ static int transport_generic_cmd_sequencer(
out_unsupported_cdb:
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
- return -2;
+ return -EINVAL;
out_invalid_cdb_field:
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
- return -2;
+ return -EINVAL;
}
static inline void transport_release_tasks(struct se_cmd *);
@@ -3662,7 +3625,7 @@ static void transport_memcpy_se_mem_read_contig(
*/
static void transport_complete_task_attr(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_cmd *cmd_p, *cmd_tmp;
int new_active_tasks = 0;
@@ -3682,7 +3645,7 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
cmd->se_ordered_id);
} else if (cmd->sam_task_attr == MSG_ORDERED_TAG) {
spin_lock(&dev->ordered_cmd_lock);
- list_del(&cmd->se_ordered_list);
+ list_del(&cmd->se_ordered_node);
atomic_dec(&dev->dev_ordered_sync);
smp_mb__after_atomic_dec();
spin_unlock(&dev->ordered_cmd_lock);
@@ -3698,9 +3661,9 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
*/
spin_lock(&dev->delayed_cmd_lock);
list_for_each_entry_safe(cmd_p, cmd_tmp,
- &dev->delayed_cmd_list, se_delayed_list) {
+ &dev->delayed_cmd_list, se_delayed_node) {
- list_del(&cmd_p->se_delayed_list);
+ list_del(&cmd_p->se_delayed_node);
spin_unlock(&dev->delayed_cmd_lock);
DEBUG_STA("Calling add_tasks() for"
@@ -3733,7 +3696,7 @@ static void transport_generic_complete_ok(struct se_cmd *cmd)
* delayed execution list after a HEAD_OF_QUEUE or ORDERED Task
* Attribute.
*/
- if (cmd->se_lun->lun_se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
+ if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
transport_complete_task_attr(cmd);
/*
* Check if we need to retrieve a sense buffer from
@@ -3777,8 +3740,8 @@ static void transport_generic_complete_ok(struct se_cmd *cmd)
*/
if (cmd->se_cmd_flags & SCF_PASSTHROUGH_CONTIG_TO_SG)
transport_memcpy_write_contig(cmd,
- cmd->t_task->t_task_pt_sgl,
- cmd->t_task->t_task_buf);
+ cmd->t_task.t_task_pt_sgl,
+ cmd->t_task.t_task_buf);
cmd->se_tfo->queue_data_in(cmd);
break;
@@ -3792,7 +3755,7 @@ static void transport_generic_complete_ok(struct se_cmd *cmd)
/*
* Check if we need to send READ payload for BIDI-COMMAND
*/
- if (cmd->t_task->t_mem_bidi_list != NULL) {
+ if (!list_empty(&cmd->t_task.t_mem_bidi_list)) {
spin_lock(&cmd->se_lun->lun_sep_lock);
if (cmd->se_lun->lun_sep) {
cmd->se_lun->lun_sep->sep_stats.tx_data_octets +=
@@ -3819,9 +3782,9 @@ static void transport_free_dev_tasks(struct se_cmd *cmd)
struct se_task *task, *task_tmp;
unsigned long flags;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
list_for_each_entry_safe(task, task_tmp,
- &cmd->t_task->t_task_list, t_list) {
+ &cmd->t_task.t_task_list, t_list) {
if (atomic_read(&task->task_active))
continue;
@@ -3830,15 +3793,15 @@ static void transport_free_dev_tasks(struct se_cmd *cmd)
list_del(&task->t_list);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
if (task->se_dev)
task->se_dev->transport->free_task(task);
else
printk(KERN_ERR "task[%u] - task->se_dev is NULL\n",
task->task_no);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
}
static inline void transport_free_pages(struct se_cmd *cmd)
@@ -3851,9 +3814,9 @@ static inline void transport_free_pages(struct se_cmd *cmd)
if (cmd->se_dev->transport->do_se_mem_map)
free_page = 0;
- if (cmd->t_task->t_task_buf) {
- kfree(cmd->t_task->t_task_buf);
- cmd->t_task->t_task_buf = NULL;
+ if (cmd->t_task.t_task_buf) {
+ kfree(cmd->t_task.t_task_buf);
+ cmd->t_task.t_task_buf = NULL;
return;
}
@@ -3863,11 +3826,8 @@ static inline void transport_free_pages(struct se_cmd *cmd)
if (cmd->se_cmd_flags & SCF_CMD_PASSTHROUGH_NOALLOC)
return;
- if (!(cmd->t_task->t_tasks_se_num))
- return;
-
list_for_each_entry_safe(se_mem, se_mem_tmp,
- cmd->t_task->t_mem_list, se_list) {
+ &cmd->t_task.t_mem_list, se_list) {
/*
* We only release call __free_page(struct se_mem->se_page) when
* SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is NOT in use,
@@ -3878,27 +3838,21 @@ static inline void transport_free_pages(struct se_cmd *cmd)
list_del(&se_mem->se_list);
kmem_cache_free(se_mem_cache, se_mem);
}
+ cmd->t_task.t_tasks_se_num = 0;
- if (cmd->t_task->t_mem_bidi_list && cmd->t_task->t_tasks_se_bidi_num) {
- list_for_each_entry_safe(se_mem, se_mem_tmp,
- cmd->t_task->t_mem_bidi_list, se_list) {
- /*
- * We only release call __free_page(struct se_mem->se_page) when
- * SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is NOT in use,
- */
- if (free_page)
- __free_page(se_mem->se_page);
+ list_for_each_entry_safe(se_mem, se_mem_tmp,
+ &cmd->t_task.t_mem_bidi_list, se_list) {
+ /*
+ * We only release call __free_page(struct se_mem->se_page) when
+ * SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is NOT in use,
+ */
+ if (free_page)
+ __free_page(se_mem->se_page);
- list_del(&se_mem->se_list);
- kmem_cache_free(se_mem_cache, se_mem);
- }
+ list_del(&se_mem->se_list);
+ kmem_cache_free(se_mem_cache, se_mem);
}
-
- kfree(cmd->t_task->t_mem_bidi_list);
- cmd->t_task->t_mem_bidi_list = NULL;
- kfree(cmd->t_task->t_mem_list);
- cmd->t_task->t_mem_list = NULL;
- cmd->t_task->t_tasks_se_num = 0;
+ cmd->t_task.t_tasks_se_bidi_num = 0;
}
static inline void transport_release_tasks(struct se_cmd *cmd)
@@ -3910,23 +3864,23 @@ static inline int transport_dec_and_check(struct se_cmd *cmd)
{
unsigned long flags;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (atomic_read(&cmd->t_task->t_fe_count)) {
- if (!(atomic_dec_and_test(&cmd->t_task->t_fe_count))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (atomic_read(&cmd->t_task.t_fe_count)) {
+ if (!(atomic_dec_and_test(&cmd->t_task.t_fe_count))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
return 1;
}
}
- if (atomic_read(&cmd->t_task->t_se_count)) {
- if (!(atomic_dec_and_test(&cmd->t_task->t_se_count))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ if (atomic_read(&cmd->t_task.t_se_count)) {
+ if (!(atomic_dec_and_test(&cmd->t_task.t_se_count))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
return 1;
}
}
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return 0;
}
@@ -3938,14 +3892,14 @@ static void transport_release_fe_cmd(struct se_cmd *cmd)
if (transport_dec_and_check(cmd))
return;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (!(atomic_read(&cmd->t_task->transport_dev_active))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (!(atomic_read(&cmd->t_task.transport_dev_active))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
goto free_pages;
}
- atomic_set(&cmd->t_task->transport_dev_active, 0);
+ atomic_set(&cmd->t_task.transport_dev_active, 0);
transport_all_task_dev_remove_state(cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_release_tasks(cmd);
free_pages:
@@ -3961,33 +3915,30 @@ static int transport_generic_remove(
{
unsigned long flags;
- if (!(cmd->t_task))
- goto release_cmd;
-
if (transport_dec_and_check(cmd)) {
if (session_reinstatement) {
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
transport_all_task_dev_remove_state(cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
flags);
}
return 1;
}
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (!(atomic_read(&cmd->t_task->transport_dev_active))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (!(atomic_read(&cmd->t_task.transport_dev_active))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
goto free_pages;
}
- atomic_set(&cmd->t_task->transport_dev_active, 0);
+ atomic_set(&cmd->t_task.transport_dev_active, 0);
transport_all_task_dev_remove_state(cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_release_tasks(cmd);
+
free_pages:
transport_free_pages(cmd);
-release_cmd:
if (release_to_pool) {
transport_release_cmd_to_pool(cmd);
} else {
@@ -4011,35 +3962,19 @@ release_cmd:
*/
int transport_generic_map_mem_to_cmd(
struct se_cmd *cmd,
- struct scatterlist *mem,
- u32 sg_mem_num,
- struct scatterlist *mem_bidi_in,
- u32 sg_mem_bidi_num)
+ struct scatterlist *sgl,
+ u32 sgl_count,
+ struct scatterlist *sgl_bidi,
+ u32 sgl_bidi_count)
{
- u32 se_mem_cnt_out = 0;
+ u32 mapped_sg_count = 0;
int ret;
- if (!(mem) || !(sg_mem_num))
+ if (!sgl || !sgl_count)
return 0;
- /*
- * Passed *mem will contain a list_head containing preformatted
- * struct se_mem elements...
- */
- if (!(cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM)) {
- if ((mem_bidi_in) || (sg_mem_bidi_num)) {
- printk(KERN_ERR "SCF_CMD_PASSTHROUGH_NOALLOC not supported"
- " with BIDI-COMMAND\n");
- return -ENOSYS;
- }
- cmd->t_task->t_mem_list = (struct list_head *)mem;
- cmd->t_task->t_tasks_se_num = sg_mem_num;
- cmd->se_cmd_flags |= SCF_CMD_PASSTHROUGH_NOALLOC;
- return 0;
- }
/*
- * Otherwise, assume the caller is passing a struct scatterlist
- * array from include/linux/scatterlist.h
+ * Convert sgls (sgl, sgl_bidi) to list of se_mems
*/
if ((cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB) ||
(cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB)) {
@@ -4048,41 +3983,29 @@ int transport_generic_map_mem_to_cmd(
* processed into a TCM struct se_subsystem_dev, we do the mapping
* from the passed physical memory to struct se_mem->se_page here.
*/
- cmd->t_task->t_mem_list = transport_init_se_mem_list();
- if (!(cmd->t_task->t_mem_list))
- return -ENOMEM;
-
ret = transport_map_sg_to_mem(cmd,
- cmd->t_task->t_mem_list, mem, &se_mem_cnt_out);
+ &cmd->t_task.t_mem_list, sgl, &mapped_sg_count);
if (ret < 0)
return -ENOMEM;
- cmd->t_task->t_tasks_se_num = se_mem_cnt_out;
+ cmd->t_task.t_tasks_se_num = mapped_sg_count;
/*
* Setup BIDI READ list of struct se_mem elements
*/
- if ((mem_bidi_in) && (sg_mem_bidi_num)) {
- cmd->t_task->t_mem_bidi_list = transport_init_se_mem_list();
- if (!(cmd->t_task->t_mem_bidi_list)) {
- kfree(cmd->t_task->t_mem_list);
- return -ENOMEM;
- }
- se_mem_cnt_out = 0;
-
+ if (sgl_bidi && sgl_bidi_count) {
+ mapped_sg_count = 0;
ret = transport_map_sg_to_mem(cmd,
- cmd->t_task->t_mem_bidi_list, mem_bidi_in,
- &se_mem_cnt_out);
- if (ret < 0) {
- kfree(cmd->t_task->t_mem_list);
+ &cmd->t_task.t_mem_bidi_list, sgl_bidi,
+ &mapped_sg_count);
+ if (ret < 0)
return -ENOMEM;
- }
- cmd->t_task->t_tasks_se_bidi_num = se_mem_cnt_out;
+ cmd->t_task.t_tasks_se_bidi_num = mapped_sg_count;
}
cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC;
} else if (cmd->se_cmd_flags & SCF_SCSI_CONTROL_NONSG_IO_CDB) {
- if (mem_bidi_in || sg_mem_bidi_num) {
+ if (sgl_bidi || sgl_bidi_count) {
printk(KERN_ERR "BIDI-Commands not supported using "
"SCF_SCSI_CONTROL_NONSG_IO_CDB\n");
return -ENOSYS;
@@ -4097,7 +4020,8 @@ int transport_generic_map_mem_to_cmd(
* struct scatterlist format.
*/
cmd->se_cmd_flags |= SCF_PASSTHROUGH_CONTIG_TO_SG;
- cmd->t_task->t_task_pt_sgl = mem;
+ cmd->t_task.t_task_pt_sgl = sgl;
+ /* don't need sgl count? We assume it contains cmd->data_length data */
}
return 0;
@@ -4112,21 +4036,21 @@ static inline long long transport_dev_end_lba(struct se_device *dev)
static int transport_get_sectors(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
- cmd->t_task->t_tasks_sectors =
+ cmd->t_task.t_tasks_sectors =
(cmd->data_length / dev->se_sub_dev->se_dev_attrib.block_size);
- if (!(cmd->t_task->t_tasks_sectors))
- cmd->t_task->t_tasks_sectors = 1;
+ if (!(cmd->t_task.t_tasks_sectors))
+ cmd->t_task.t_tasks_sectors = 1;
if (dev->transport->get_device_type(dev) != TYPE_DISK)
return 0;
- if ((cmd->t_task->t_task_lba + cmd->t_task->t_tasks_sectors) >
+ if ((cmd->t_task.t_task_lba + cmd->t_task.t_tasks_sectors) >
transport_dev_end_lba(dev)) {
printk(KERN_ERR "LBA: %llu Sectors: %u exceeds"
" transport_dev_end_lba(): %llu\n",
- cmd->t_task->t_task_lba, cmd->t_task->t_tasks_sectors,
+ cmd->t_task.t_task_lba, cmd->t_task.t_tasks_sectors,
transport_dev_end_lba(dev));
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->scsi_sense_reason = TCM_SECTOR_COUNT_TOO_MANY;
@@ -4138,26 +4062,26 @@ static int transport_get_sectors(struct se_cmd *cmd)
static int transport_new_cmd_obj(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
u32 task_cdbs = 0, rc;
if (!(cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB)) {
task_cdbs++;
- cmd->t_task->t_task_cdbs++;
+ cmd->t_task.t_task_cdbs++;
} else {
int set_counts = 1;
/*
* Setup any BIDI READ tasks and memory from
- * cmd->t_task->t_mem_bidi_list so the READ struct se_tasks
+ * cmd->t_task.t_mem_bidi_list so the READ struct se_tasks
* are queued first for the non pSCSI passthrough case.
*/
- if ((cmd->t_task->t_mem_bidi_list != NULL) &&
+ if (!list_empty(&cmd->t_task.t_mem_bidi_list) &&
(dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV)) {
rc = transport_generic_get_cdb_count(cmd,
- cmd->t_task->t_task_lba,
- cmd->t_task->t_tasks_sectors,
- DMA_FROM_DEVICE, cmd->t_task->t_mem_bidi_list,
+ cmd->t_task.t_task_lba,
+ cmd->t_task.t_tasks_sectors,
+ DMA_FROM_DEVICE, &cmd->t_task.t_mem_bidi_list,
set_counts);
if (!(rc)) {
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
@@ -4168,13 +4092,13 @@ static int transport_new_cmd_obj(struct se_cmd *cmd)
set_counts = 0;
}
/*
- * Setup the tasks and memory from cmd->t_task->t_mem_list
+ * Setup the tasks and memory from cmd->t_task.t_mem_list
* Note for BIDI transfers this will contain the WRITE payload
*/
task_cdbs = transport_generic_get_cdb_count(cmd,
- cmd->t_task->t_task_lba,
- cmd->t_task->t_tasks_sectors,
- cmd->data_direction, cmd->t_task->t_mem_list,
+ cmd->t_task.t_task_lba,
+ cmd->t_task.t_tasks_sectors,
+ cmd->data_direction, &cmd->t_task.t_mem_list,
set_counts);
if (!(task_cdbs)) {
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
@@ -4182,63 +4106,34 @@ static int transport_new_cmd_obj(struct se_cmd *cmd)
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
return PYX_TRANSPORT_LU_COMM_FAILURE;
}
- cmd->t_task->t_task_cdbs += task_cdbs;
+ cmd->t_task.t_task_cdbs += task_cdbs;
#if 0
printk(KERN_INFO "data_length: %u, LBA: %llu t_tasks_sectors:"
" %u, t_task_cdbs: %u\n", obj_ptr, cmd->data_length,
- cmd->t_task->t_task_lba, cmd->t_task->t_tasks_sectors,
- cmd->t_task->t_task_cdbs);
+ cmd->t_task.t_task_lba, cmd->t_task.t_tasks_sectors,
+ cmd->t_task.t_task_cdbs);
#endif
}
- atomic_set(&cmd->t_task->t_task_cdbs_left, task_cdbs);
- atomic_set(&cmd->t_task->t_task_cdbs_ex_left, task_cdbs);
- atomic_set(&cmd->t_task->t_task_cdbs_timeout_left, task_cdbs);
+ atomic_set(&cmd->t_task.t_task_cdbs_left, task_cdbs);
+ atomic_set(&cmd->t_task.t_task_cdbs_ex_left, task_cdbs);
+ atomic_set(&cmd->t_task.t_task_cdbs_timeout_left, task_cdbs);
return 0;
}
-static struct list_head *transport_init_se_mem_list(void)
-{
- struct list_head *se_mem_list;
-
- se_mem_list = kzalloc(sizeof(struct list_head), GFP_KERNEL);
- if (!(se_mem_list)) {
- printk(KERN_ERR "Unable to allocate memory for se_mem_list\n");
- return NULL;
- }
- INIT_LIST_HEAD(se_mem_list);
-
- return se_mem_list;
-}
-
static int
transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size)
{
unsigned char *buf;
struct se_mem *se_mem;
- cmd->t_task->t_mem_list = transport_init_se_mem_list();
- if (!(cmd->t_task->t_mem_list))
- return -ENOMEM;
-
/*
* If the device uses memory mapping this is enough.
*/
if (cmd->se_dev->transport->do_se_mem_map)
return 0;
- /*
- * Setup BIDI-COMMAND READ list of struct se_mem elements
- */
- if (cmd->t_task->t_tasks_bidi) {
- cmd->t_task->t_mem_bidi_list = transport_init_se_mem_list();
- if (!(cmd->t_task->t_mem_bidi_list)) {
- kfree(cmd->t_task->t_mem_list);
- return -ENOMEM;
- }
- }
-
while (length) {
se_mem = kmem_cache_zalloc(se_mem_cache, GFP_KERNEL);
if (!(se_mem)) {
@@ -4263,8 +4158,8 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size)
memset(buf, 0, se_mem->se_len);
kunmap_atomic(buf, KM_IRQ0);
- list_add_tail(&se_mem->se_list, cmd->t_task->t_mem_list);
- cmd->t_task->t_tasks_se_num++;
+ list_add_tail(&se_mem->se_list, &cmd->t_task.t_mem_list);
+ cmd->t_task.t_tasks_se_num++;
DEBUG_MEM("Allocated struct se_mem page(%p) Length(%u)"
" Offset(%u)\n", se_mem->se_page, se_mem->se_len,
@@ -4274,7 +4169,7 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size)
}
DEBUG_MEM("Allocated total struct se_mem elements(%u)\n",
- cmd->t_task->t_tasks_se_num);
+ cmd->t_task.t_tasks_se_num);
return 0;
out:
@@ -4290,7 +4185,7 @@ int transport_init_task_sg(
u32 task_offset)
{
struct se_cmd *se_cmd = task->task_se_cmd;
- struct se_device *se_dev = se_cmd->se_lun->lun_se_dev;
+ struct se_device *se_dev = se_cmd->se_dev;
struct se_mem *se_mem = in_se_mem;
struct target_core_fabric_ops *tfo = se_cmd->se_tfo;
u32 sg_length, task_size = task->task_size, task_sg_num_padded;
@@ -4306,7 +4201,7 @@ int transport_init_task_sg(
sg_length = se_mem->se_len;
if (!(list_is_last(&se_mem->se_list,
- se_cmd->t_task->t_mem_list)))
+ &se_cmd->t_task.t_mem_list)))
se_mem = list_entry(se_mem->se_list.next,
struct se_mem, se_list);
} else {
@@ -4326,7 +4221,7 @@ int transport_init_task_sg(
sg_length = (se_mem->se_len - task_offset);
if (!(list_is_last(&se_mem->se_list,
- se_cmd->t_task->t_mem_list)))
+ &se_cmd->t_task.t_mem_list)))
se_mem = list_entry(se_mem->se_list.next,
struct se_mem, se_list);
}
@@ -4367,7 +4262,7 @@ next:
* Setup task->task_sg_bidi for SCSI READ payload for
* TCM/pSCSI passthrough if present for BIDI-COMMAND
*/
- if ((se_cmd->t_task->t_mem_bidi_list != NULL) &&
+ if (!list_empty(&se_cmd->t_task.t_mem_bidi_list) &&
(se_dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)) {
task->task_sg_bidi = kzalloc(task_sg_num_padded *
sizeof(struct scatterlist), GFP_KERNEL);
@@ -4458,21 +4353,26 @@ static inline int transport_set_tasks_sectors(
max_sectors_set);
}
+/*
+ * Convert a sgl into a linked list of se_mems.
+ */
static int transport_map_sg_to_mem(
struct se_cmd *cmd,
struct list_head *se_mem_list,
- void *in_mem,
- u32 *se_mem_cnt)
+ struct scatterlist *sg,
+ u32 *sg_count)
{
struct se_mem *se_mem;
- struct scatterlist *sg;
- u32 sg_count = 1, cmd_size = cmd->data_length;
+ u32 cmd_size = cmd->data_length;
- WARN_ON(!in_mem);
-
- sg = (struct scatterlist *)in_mem;
+ WARN_ON(!sg);
while (cmd_size) {
+ /*
+ * NOTE: it is safe to return -ENOMEM at any time in creating this
+ * list because transport_free_pages() will eventually be called, and is
+ * smart enough to deallocate all list items for sg and sg_bidi lists.
+ */
se_mem = kmem_cache_zalloc(se_mem_cache, GFP_KERNEL);
if (!(se_mem)) {
printk(KERN_ERR "Unable to allocate struct se_mem\n");
@@ -4489,26 +4389,21 @@ static int transport_map_sg_to_mem(
if (cmd_size > sg->length) {
se_mem->se_len = sg->length;
sg = sg_next(sg);
- sg_count++;
} else
se_mem->se_len = cmd_size;
cmd_size -= se_mem->se_len;
+ (*sg_count)++;
- DEBUG_MEM("sg_to_mem: *se_mem_cnt: %u cmd_size: %u\n",
- *se_mem_cnt, cmd_size);
+ DEBUG_MEM("sg_to_mem: sg_count: %u cmd_size: %u\n",
+ sg_count, cmd_size);
DEBUG_MEM("sg_to_mem: Final se_page: %p se_off: %d se_len: %d\n",
se_mem->se_page, se_mem->se_off, se_mem->se_len);
list_add_tail(&se_mem->se_list, se_mem_list);
- (*se_mem_cnt)++;
}
- DEBUG_MEM("task[0] - Mapped(%u) struct scatterlist segments to(%u)"
- " struct se_mem\n", sg_count, *se_mem_cnt);
-
- if (sg_count != *se_mem_cnt)
- BUG();
+ DEBUG_MEM("task[0] - Mapped(%u) struct scatterlist segments\n", sg_count);
return 0;
}
@@ -4551,7 +4446,7 @@ int transport_map_mem_to_sg(
sg->length = se_mem->se_len;
if (!(list_is_last(&se_mem->se_list,
- se_cmd->t_task->t_mem_list))) {
+ &se_cmd->t_task.t_mem_list))) {
se_mem = list_entry(se_mem->se_list.next,
struct se_mem, se_list);
(*se_mem_cnt)++;
@@ -4587,7 +4482,7 @@ int transport_map_mem_to_sg(
sg->length = (se_mem->se_len - *task_offset);
if (!(list_is_last(&se_mem->se_list,
- se_cmd->t_task->t_mem_list))) {
+ &se_cmd->t_task.t_mem_list))) {
se_mem = list_entry(se_mem->se_list.next,
struct se_mem, se_list);
(*se_mem_cnt)++;
@@ -4645,7 +4540,7 @@ void transport_do_task_sg_chain(struct se_cmd *cmd)
* Walk the struct se_task list and setup scatterlist chains
* for each contiguosly allocated struct se_task->task_sg[].
*/
- list_for_each_entry(task, &cmd->t_task->t_task_list, t_list) {
+ list_for_each_entry(task, &cmd->t_task.t_task_list, t_list) {
if (!(task->task_sg) || !(task->task_padded_sg))
continue;
@@ -4656,7 +4551,7 @@ void transport_do_task_sg_chain(struct se_cmd *cmd)
* Either add chain or mark end of scatterlist
*/
if (!(list_is_last(&task->t_list,
- &cmd->t_task->t_task_list))) {
+ &cmd->t_task.t_task_list))) {
/*
* Clear existing SGL termination bit set in
* transport_init_task_sg(), see sg_mark_end()
@@ -4682,7 +4577,7 @@ void transport_do_task_sg_chain(struct se_cmd *cmd)
/*
* Check for single task..
*/
- if (!(list_is_last(&task->t_list, &cmd->t_task->t_task_list))) {
+ if (!(list_is_last(&task->t_list, &cmd->t_task.t_task_list))) {
/*
* Clear existing SGL termination bit set in
* transport_init_task_sg(), see sg_mark_end()
@@ -4700,18 +4595,18 @@ void transport_do_task_sg_chain(struct se_cmd *cmd)
* Setup the starting pointer and total t_tasks_sg_linked_no including
* padding SGs for linking and to mark the end.
*/
- cmd->t_task->t_tasks_sg_chained = sg_first;
- cmd->t_task->t_tasks_sg_chained_no = sg_count;
+ cmd->t_task.t_tasks_sg_chained = sg_first;
+ cmd->t_task.t_tasks_sg_chained_no = sg_count;
- DEBUG_CMD_M("Setup cmd: %p cmd->t_task->t_tasks_sg_chained: %p and"
- " t_tasks_sg_chained_no: %u\n", cmd, cmd->t_task->t_tasks_sg_chained,
- cmd->t_task->t_tasks_sg_chained_no);
+ DEBUG_CMD_M("Setup cmd: %p cmd->t_task.t_tasks_sg_chained: %p and"
+ " t_tasks_sg_chained_no: %u\n", cmd, cmd->t_task.t_tasks_sg_chained,
+ cmd->t_task.t_tasks_sg_chained_no);
- for_each_sg(cmd->t_task->t_tasks_sg_chained, sg,
- cmd->t_task->t_tasks_sg_chained_no, i) {
+ for_each_sg(cmd->t_task.t_tasks_sg_chained, sg,
+ cmd->t_task.t_tasks_sg_chained_no, i) {
- DEBUG_CMD_M("SG[%d]: %p page: %p length: %d offset: %d, magic: 0x%08x\n",
- i, sg, sg_page(sg), sg->length, sg->offset, sg->sg_magic);
+ DEBUG_CMD_M("SG[%d]: %p page: %p length: %d offset: %d\n",
+ i, sg, sg_page(sg), sg->length, sg->offset);
if (sg_is_chain(sg))
DEBUG_CMD_M("SG: %p sg_is_chain=1\n", sg);
if (sg_is_last(sg))
@@ -4741,7 +4636,7 @@ static int transport_do_se_mem_map(
in_mem, in_se_mem, out_se_mem, se_mem_cnt,
task_offset_in);
if (ret == 0)
- task->task_se_cmd->t_task->t_tasks_se_num += *se_mem_cnt;
+ task->task_se_cmd->t_task.t_tasks_se_num += *se_mem_cnt;
return ret;
}
@@ -4791,7 +4686,7 @@ static u32 transport_generic_get_cdb_count(
struct se_task *task;
struct se_mem *se_mem = NULL, *se_mem_lout = NULL;
struct se_mem *se_mem_bidi = NULL, *se_mem_bidi_lout = NULL;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
int max_sectors_set = 0, ret;
u32 task_offset_in = 0, se_mem_cnt = 0, se_mem_bidi_cnt = 0, task_cdbs = 0;
@@ -4805,15 +4700,14 @@ static u32 transport_generic_get_cdb_count(
* mem_list will ever be empty at this point.
*/
if (!(list_empty(mem_list)))
- se_mem = list_entry(mem_list->next, struct se_mem, se_list);
+ se_mem = list_first_entry(mem_list, struct se_mem, se_list);
/*
* Check for extra se_mem_bidi mapping for BIDI-COMMANDs to
* struct se_task->task_sg_bidi for TCM/pSCSI passthrough operation
*/
- if ((cmd->t_task->t_mem_bidi_list != NULL) &&
- !(list_empty(cmd->t_task->t_mem_bidi_list)) &&
+ if (!list_empty(&cmd->t_task.t_mem_bidi_list) &&
(dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV))
- se_mem_bidi = list_entry(cmd->t_task->t_mem_bidi_list->next,
+ se_mem_bidi = list_first_entry(&cmd->t_task.t_mem_bidi_list,
struct se_mem, se_list);
while (sectors) {
@@ -4836,15 +4730,15 @@ static u32 transport_generic_get_cdb_count(
cdb = dev->transport->get_cdb(task);
if ((cdb)) {
- memcpy(cdb, cmd->t_task->t_task_cdb,
- scsi_command_size(cmd->t_task->t_task_cdb));
+ memcpy(cdb, cmd->t_task.t_task_cdb,
+ scsi_command_size(cmd->t_task.t_task_cdb));
cmd->transport_split_cdb(task->task_lba,
&task->task_sectors, cdb);
}
/*
* Perform the SE OBJ plugin and/or Transport plugin specific
- * mapping for cmd->t_task->t_mem_list. And setup the
+ * mapping for cmd->t_task.t_mem_list. And setup the
* task->task_sg and if necessary task->task_sg_bidi
*/
ret = transport_do_se_mem_map(dev, task, mem_list,
@@ -4855,7 +4749,7 @@ static u32 transport_generic_get_cdb_count(
se_mem = se_mem_lout;
/*
- * Setup the cmd->t_task->t_mem_bidi_list -> task->task_sg_bidi
+ * Setup the cmd->t_task.t_mem_bidi_list -> task->task_sg_bidi
* mapping for SCSI READ for BIDI-COMMAND passthrough with TCM/pSCSI
*
* Note that the first call to transport_do_se_mem_map() above will
@@ -4865,7 +4759,7 @@ static u32 transport_generic_get_cdb_count(
*/
if (task->task_sg_bidi != NULL) {
ret = transport_do_se_mem_map(dev, task,
- cmd->t_task->t_mem_bidi_list, NULL,
+ &cmd->t_task.t_mem_bidi_list, NULL,
se_mem_bidi, &se_mem_bidi_lout, &se_mem_bidi_cnt,
&task_offset_in);
if (ret < 0)
@@ -4888,8 +4782,8 @@ static u32 transport_generic_get_cdb_count(
}
if (set_counts) {
- atomic_inc(&cmd->t_task->t_fe_count);
- atomic_inc(&cmd->t_task->t_se_count);
+ atomic_inc(&cmd->t_task.t_fe_count);
+ atomic_inc(&cmd->t_task.t_se_count);
}
DEBUG_VOL("ITT[0x%08x] total %s cdbs(%u)\n",
@@ -4904,7 +4798,7 @@ out:
static int
transport_map_control_cmd_to_task(struct se_cmd *cmd)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
unsigned char *cdb;
struct se_task *task;
int ret;
@@ -4915,26 +4809,26 @@ transport_map_control_cmd_to_task(struct se_cmd *cmd)
cdb = dev->transport->get_cdb(task);
if (cdb)
- memcpy(cdb, cmd->t_task->t_task_cdb,
- scsi_command_size(cmd->t_task->t_task_cdb));
+ memcpy(cdb, cmd->t_task.t_task_cdb,
+ scsi_command_size(cmd->t_task.t_task_cdb));
task->task_size = cmd->data_length;
task->task_sg_num =
(cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB) ? 1 : 0;
- atomic_inc(&cmd->t_task->t_fe_count);
- atomic_inc(&cmd->t_task->t_se_count);
+ atomic_inc(&cmd->t_task.t_fe_count);
+ atomic_inc(&cmd->t_task.t_se_count);
if (cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB) {
struct se_mem *se_mem = NULL, *se_mem_lout = NULL;
u32 se_mem_cnt = 0, task_offset = 0;
- if (!list_empty(cmd->t_task->t_mem_list))
- se_mem = list_entry(cmd->t_task->t_mem_list->next,
+ if (!list_empty(&cmd->t_task.t_mem_list))
+ se_mem = list_first_entry(&cmd->t_task.t_mem_list,
struct se_mem, se_list);
ret = transport_do_se_mem_map(dev, task,
- cmd->t_task->t_mem_list, NULL, se_mem,
+ &cmd->t_task.t_mem_list, NULL, se_mem,
&se_mem_lout, &se_mem_cnt, &task_offset);
if (ret < 0)
return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
@@ -4969,14 +4863,14 @@ static int transport_generic_new_cmd(struct se_cmd *cmd)
{
struct se_portal_group *se_tpg;
struct se_task *task;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
int ret = 0;
/*
* Determine is the TCM fabric module has already allocated physical
* memory, and is directly calling transport_generic_map_mem_to_cmd()
* to setup beforehand the linked list of physical memory at
- * cmd->t_task->t_mem_list of struct se_mem->se_page
+ * cmd->t_task.t_mem_list of struct se_mem->se_page
*/
if (!(cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC)) {
ret = transport_allocate_resources(cmd);
@@ -5005,7 +4899,7 @@ static int transport_generic_new_cmd(struct se_cmd *cmd)
}
if (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB) {
- list_for_each_entry(task, &cmd->t_task->t_task_list, t_list) {
+ list_for_each_entry(task, &cmd->t_task.t_task_list, t_list) {
if (atomic_read(&task->task_sent))
continue;
if (!dev->transport->map_task_SG)
@@ -5052,9 +4946,9 @@ void transport_generic_process_write(struct se_cmd *cmd)
* original EDTL
*/
if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
- if (!cmd->t_task->t_tasks_se_num) {
+ if (!cmd->t_task.t_tasks_se_num) {
unsigned char *dst, *buf =
- (unsigned char *)cmd->t_task->t_task_buf;
+ (unsigned char *)cmd->t_task.t_task_buf;
dst = kzalloc(cmd->cmd_spdtl), GFP_KERNEL);
if (!(dst)) {
@@ -5066,15 +4960,15 @@ void transport_generic_process_write(struct se_cmd *cmd)
}
memcpy(dst, buf, cmd->cmd_spdtl);
- kfree(cmd->t_task->t_task_buf);
- cmd->t_task->t_task_buf = dst;
+ kfree(cmd->t_task.t_task_buf);
+ cmd->t_task.t_task_buf = dst;
} else {
struct scatterlist *sg =
- (struct scatterlist *sg)cmd->t_task->t_task_buf;
+ (struct scatterlist *sg)cmd->t_task.t_task_buf;
struct scatterlist *orig_sg;
orig_sg = kzalloc(sizeof(struct scatterlist) *
- cmd->t_task->t_tasks_se_num,
+ cmd->t_task.t_tasks_se_num,
GFP_KERNEL))) {
if (!(orig_sg)) {
printk(KERN_ERR "Unable to allocate memory"
@@ -5084,9 +4978,9 @@ void transport_generic_process_write(struct se_cmd *cmd)
return;
}
- memcpy(orig_sg, cmd->t_task->t_task_buf,
+ memcpy(orig_sg, cmd->t_task.t_task_buf,
sizeof(struct scatterlist) *
- cmd->t_task->t_tasks_se_num);
+ cmd->t_task.t_tasks_se_num);
cmd->data_length = cmd->cmd_spdtl;
/*
@@ -5117,22 +5011,22 @@ static int transport_generic_write_pending(struct se_cmd *cmd)
unsigned long flags;
int ret;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
cmd->t_state = TRANSPORT_WRITE_PENDING;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
/*
* For the TCM control CDBs using a contiguous buffer, do the memcpy
* from the passed Linux/SCSI struct scatterlist located at
- * se_cmd->t_task->t_task_pt_buf to the contiguous buffer at
- * se_cmd->t_task->t_task_buf.
+ * se_cmd->t_task.t_task_pt_buf to the contiguous buffer at
+ * se_cmd->t_task.t_task_buf.
*/
if (cmd->se_cmd_flags & SCF_PASSTHROUGH_CONTIG_TO_SG)
transport_memcpy_read_contig(cmd,
- cmd->t_task->t_task_buf,
- cmd->t_task->t_task_pt_sgl);
+ cmd->t_task.t_task_buf,
+ cmd->t_task.t_task_pt_sgl);
/*
* Clear the se_cmd for WRITE_PENDING status in order to set
- * cmd->t_task->t_transport_active=0 so that transport_generic_handle_data
+ * cmd->t_task.t_transport_active=0 so that transport_generic_handle_data
* can be called from HW target mode interrupt code. This is safe
* to be called with transport_off=1 before the cmd->se_tfo->write_pending
* because the se_cmd->se_lun pointer is not being cleared.
@@ -5156,7 +5050,6 @@ static int transport_generic_write_pending(struct se_cmd *cmd)
*/
void transport_release_cmd_to_pool(struct se_cmd *cmd)
{
- BUG_ON(!cmd->t_task);
BUG_ON(!cmd->se_tfo);
transport_free_se_cmd(cmd);
@@ -5174,7 +5067,7 @@ void transport_generic_free_cmd(
int release_to_pool,
int session_reinstatement)
{
- if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) || !cmd->t_task)
+ if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD))
transport_release_cmd_to_pool(cmd);
else {
core_dec_lacl_count(cmd->se_sess->se_node_acl, cmd);
@@ -5220,32 +5113,32 @@ static int transport_lun_wait_for_tasks(struct se_cmd *cmd, struct se_lun *lun)
* If the frontend has already requested this struct se_cmd to
* be stopped, we can safely ignore this struct se_cmd.
*/
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- if (atomic_read(&cmd->t_task->t_transport_stop)) {
- atomic_set(&cmd->t_task->transport_lun_stop, 0);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ if (atomic_read(&cmd->t_task.t_transport_stop)) {
+ atomic_set(&cmd->t_task.transport_lun_stop, 0);
DEBUG_TRANSPORT_S("ConfigFS ITT[0x%08x] - t_transport_stop =="
" TRUE, skipping\n", cmd->se_tfo->get_task_tag(cmd));
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
transport_cmd_check_stop(cmd, 1, 0);
return -EPERM;
}
- atomic_set(&cmd->t_task->transport_lun_fe_stop, 1);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ atomic_set(&cmd->t_task.transport_lun_fe_stop, 1);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
- wake_up_interruptible(&cmd->se_lun->lun_se_dev->dev_queue_obj.thread_wq);
+ wake_up_interruptible(&cmd->se_dev->dev_queue_obj.thread_wq);
ret = transport_stop_tasks_for_cmd(cmd);
DEBUG_TRANSPORT_S("ConfigFS: cmd: %p t_task_cdbs: %d stop tasks ret:"
- " %d\n", cmd, cmd->t_task->t_task_cdbs, ret);
+ " %d\n", cmd, cmd->t_task.t_task_cdbs, ret);
if (!ret) {
DEBUG_TRANSPORT_S("ConfigFS: ITT[0x%08x] - stopping cmd....\n",
cmd->se_tfo->get_task_tag(cmd));
- wait_for_completion(&cmd->t_task->transport_lun_stop_comp);
+ wait_for_completion(&cmd->t_task.transport_lun_stop_comp);
DEBUG_TRANSPORT_S("ConfigFS: ITT[0x%08x] - stopped cmd....\n",
cmd->se_tfo->get_task_tag(cmd));
}
- transport_remove_cmd_from_queue(cmd, &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ transport_remove_cmd_from_queue(cmd, &cmd->se_dev->dev_queue_obj);
return 0;
}
@@ -5266,31 +5159,24 @@ static void __transport_clear_lun_from_sessions(struct se_lun *lun)
* Initiator Port.
*/
spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
- while (!list_empty_careful(&lun->lun_cmd_list)) {
- cmd = list_entry(lun->lun_cmd_list.next,
- struct se_cmd, se_lun_list);
- list_del(&cmd->se_lun_list);
-
- if (!(cmd->t_task)) {
- printk(KERN_ERR "ITT: 0x%08x, cmd->t_task = NULL"
- "[i,t]_state: %u/%u\n",
- cmd->se_tfo->get_task_tag(cmd),
- cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
- BUG();
- }
- atomic_set(&cmd->t_task->transport_lun_active, 0);
+ while (!list_empty(&lun->lun_cmd_list)) {
+ cmd = list_first_entry(&lun->lun_cmd_list,
+ struct se_cmd, se_lun_node);
+ list_del(&cmd->se_lun_node);
+
+ atomic_set(&cmd->t_task.transport_lun_active, 0);
/*
* This will notify iscsi_target_transport.c:
* transport_cmd_check_stop() that a LUN shutdown is in
* progress for the iscsi_cmd_t.
*/
- spin_lock(&cmd->t_task->t_state_lock);
- DEBUG_CLEAR_L("SE_LUN[%d] - Setting cmd->t_task->transport"
+ spin_lock(&cmd->t_task.t_state_lock);
+ DEBUG_CLEAR_L("SE_LUN[%d] - Setting cmd->t_task.transport"
"_lun_stop for ITT: 0x%08x\n",
cmd->se_lun->unpacked_lun,
cmd->se_tfo->get_task_tag(cmd));
- atomic_set(&cmd->t_task->transport_lun_stop, 1);
- spin_unlock(&cmd->t_task->t_state_lock);
+ atomic_set(&cmd->t_task.transport_lun_stop, 1);
+ spin_unlock(&cmd->t_task.t_state_lock);
spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags);
@@ -5318,14 +5204,14 @@ static void __transport_clear_lun_from_sessions(struct se_lun *lun)
cmd->se_lun->unpacked_lun,
cmd->se_tfo->get_task_tag(cmd));
- spin_lock_irqsave(&cmd->t_task->t_state_lock, cmd_flags);
- if (!(atomic_read(&cmd->t_task->transport_dev_active))) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, cmd_flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, cmd_flags);
+ if (!(atomic_read(&cmd->t_task.transport_dev_active))) {
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, cmd_flags);
goto check_cond;
}
- atomic_set(&cmd->t_task->transport_dev_active, 0);
+ atomic_set(&cmd->t_task.transport_dev_active, 0);
transport_all_task_dev_remove_state(cmd);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, cmd_flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, cmd_flags);
transport_free_dev_tasks(cmd);
/*
@@ -5342,24 +5228,24 @@ check_cond:
* be released, notify the waiting thread now that LU has
* finished accessing it.
*/
- spin_lock_irqsave(&cmd->t_task->t_state_lock, cmd_flags);
- if (atomic_read(&cmd->t_task->transport_lun_fe_stop)) {
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, cmd_flags);
+ if (atomic_read(&cmd->t_task.transport_lun_fe_stop)) {
DEBUG_CLEAR_L("SE_LUN[%d] - Detected FE stop for"
" struct se_cmd: %p ITT: 0x%08x\n",
lun->unpacked_lun,
cmd, cmd->se_tfo->get_task_tag(cmd));
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock,
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
cmd_flags);
transport_cmd_check_stop(cmd, 1, 0);
- complete(&cmd->t_task->transport_lun_fe_stop_comp);
+ complete(&cmd->t_task.transport_lun_fe_stop_comp);
spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
continue;
}
DEBUG_CLEAR_L("SE_LUN[%d] - ITT: 0x%08x finished processing\n",
lun->unpacked_lun, cmd->se_tfo->get_task_tag(cmd));
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, cmd_flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, cmd_flags);
spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
}
spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags);
@@ -5379,7 +5265,7 @@ int transport_clear_lun_from_sessions(struct se_lun *lun)
{
struct task_struct *kt;
- kt = kthread_run(transport_clear_lun_thread, (void *)lun,
+ kt = kthread_run(transport_clear_lun_thread, lun,
"tcm_cl_%u", lun->unpacked_lun);
if (IS_ERR(kt)) {
printk(KERN_ERR "Unable to start clear_lun thread\n");
@@ -5405,15 +5291,15 @@ static void transport_generic_wait_for_tasks(
if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) && !(cmd->se_tmr_req))
return;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
/*
* If we are already stopped due to an external event (ie: LUN shutdown)
* sleep until the connection can have the passed struct se_cmd back.
- * The cmd->t_task->transport_lun_stopped_sem will be upped by
+ * The cmd->t_task.transport_lun_stopped_sem will be upped by
* transport_clear_lun_from_sessions() once the ConfigFS context caller
* has completed its operation on the struct se_cmd.
*/
- if (atomic_read(&cmd->t_task->transport_lun_stop)) {
+ if (atomic_read(&cmd->t_task.transport_lun_stop)) {
DEBUG_TRANSPORT_S("wait_for_tasks: Stopping"
" wait_for_completion(&cmd->t_tasktransport_lun_fe"
@@ -5426,10 +5312,10 @@ static void transport_generic_wait_for_tasks(
* We go ahead and up transport_lun_stop_comp just to be sure
* here.
*/
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
- complete(&cmd->t_task->transport_lun_stop_comp);
- wait_for_completion(&cmd->t_task->transport_lun_fe_stop_comp);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
+ complete(&cmd->t_task.transport_lun_stop_comp);
+ wait_for_completion(&cmd->t_task.transport_lun_fe_stop_comp);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
transport_all_task_dev_remove_state(cmd);
/*
@@ -5442,13 +5328,13 @@ static void transport_generic_wait_for_tasks(
"stop_comp); for ITT: 0x%08x\n",
cmd->se_tfo->get_task_tag(cmd));
- atomic_set(&cmd->t_task->transport_lun_stop, 0);
+ atomic_set(&cmd->t_task.transport_lun_stop, 0);
}
- if (!atomic_read(&cmd->t_task->t_transport_active) ||
- atomic_read(&cmd->t_task->t_transport_aborted))
+ if (!atomic_read(&cmd->t_task.t_transport_active) ||
+ atomic_read(&cmd->t_task.t_transport_aborted))
goto remove;
- atomic_set(&cmd->t_task->t_transport_stop, 1);
+ atomic_set(&cmd->t_task.t_transport_stop, 1);
DEBUG_TRANSPORT_S("wait_for_tasks: Stopping %p ITT: 0x%08x"
" i_state: %d, t_state/def_t_state: %d/%d, t_transport_stop"
@@ -5456,21 +5342,21 @@ static void transport_generic_wait_for_tasks(
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
cmd->deferred_t_state);
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
- wake_up_interruptible(&cmd->se_lun->lun_se_dev->dev_queue_obj.thread_wq);
+ wake_up_interruptible(&cmd->se_dev->dev_queue_obj.thread_wq);
- wait_for_completion(&cmd->t_task->t_transport_stop_comp);
+ wait_for_completion(&cmd->t_task.t_transport_stop_comp);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- atomic_set(&cmd->t_task->t_transport_active, 0);
- atomic_set(&cmd->t_task->t_transport_stop, 0);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ atomic_set(&cmd->t_task.t_transport_active, 0);
+ atomic_set(&cmd->t_task.t_transport_stop, 0);
DEBUG_TRANSPORT_S("wait_for_tasks: Stopped wait_for_compltion("
- "&cmd->t_task->t_transport_stop_comp) for ITT: 0x%08x\n",
+ "&cmd->t_task.t_transport_stop_comp) for ITT: 0x%08x\n",
cmd->se_tfo->get_task_tag(cmd));
remove:
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
if (!remove_cmd)
return;
@@ -5509,13 +5395,13 @@ int transport_send_check_condition_and_sense(
int offset;
u8 asc = 0, ascq = 0;
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
return 0;
}
cmd->se_cmd_flags |= SCF_SENT_CHECK_CONDITION;
- spin_unlock_irqrestore(&cmd->t_task->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
if (!reason && from_transport)
goto after_reason;
@@ -5674,14 +5560,14 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
{
int ret = 0;
- if (atomic_read(&cmd->t_task->t_transport_aborted) != 0) {
+ if (atomic_read(&cmd->t_task.t_transport_aborted) != 0) {
if (!(send_status) ||
(cmd->se_cmd_flags & SCF_SENT_DELAYED_TAS))
return 1;
#if 0
printk(KERN_INFO "Sending delayed SAM_STAT_TASK_ABORTED"
" status for CDB: 0x%02x ITT: 0x%08x\n",
- cmd->t_task->t_task_cdb[0],
+ cmd->t_task.t_task_cdb[0],
cmd->se_tfo->get_task_tag(cmd));
#endif
cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS;
@@ -5702,7 +5588,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
*/
if (cmd->data_direction == DMA_TO_DEVICE) {
if (cmd->se_tfo->write_pending_status(cmd) != 0) {
- atomic_inc(&cmd->t_task->t_transport_aborted);
+ atomic_inc(&cmd->t_task.t_transport_aborted);
smp_mb__after_atomic_inc();
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
transport_new_cmd_failure(cmd);
@@ -5712,7 +5598,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
#if 0
printk(KERN_INFO "Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x,"
- " ITT: 0x%08x\n", cmd->t_task->t_task_cdb[0],
+ " ITT: 0x%08x\n", cmd->t_task.t_task_cdb[0],
cmd->se_tfo->get_task_tag(cmd));
#endif
cmd->se_tfo->queue_status(cmd);
@@ -5725,7 +5611,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
int transport_generic_do_tmr(struct se_cmd *cmd)
{
struct se_cmd *ref_cmd;
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_tmr_req *tmr = cmd->se_tmr_req;
int ret;
@@ -5788,9 +5674,7 @@ transport_get_task_from_state_list(struct se_device *dev)
static void transport_processing_shutdown(struct se_device *dev)
{
struct se_cmd *cmd;
- struct se_queue_req *qr;
struct se_task *task;
- u8 state;
unsigned long flags;
/*
* Empty the struct se_device's struct se_task state list.
@@ -5803,15 +5687,9 @@ static void transport_processing_shutdown(struct se_device *dev)
}
cmd = task->task_se_cmd;
- if (!cmd->t_task) {
- printk(KERN_ERR "cmd->t_task is NULL for task: %p cmd:"
- " %p ITT: 0x%08x\n", task, cmd,
- cmd->se_tfo->get_task_tag(cmd));
- continue;
- }
spin_unlock_irqrestore(&dev->execute_task_lock, flags);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
DEBUG_DO("PT: cmd: %p task: %p ITT/CmdSN: 0x%08x/0x%08x,"
" i_state/def_i_state: %d/%d, t_state/def_t_state:"
@@ -5819,22 +5697,22 @@ static void transport_processing_shutdown(struct se_device *dev)
cmd->se_tfo->get_task_tag(cmd), cmd->cmd_sn,
cmd->se_tfo->get_cmd_state(cmd), cmd->deferred_i_state,
cmd->t_state, cmd->deferred_t_state,
- cmd->t_task->t_task_cdb[0]);
+ cmd->t_task.t_task_cdb[0]);
DEBUG_DO("PT: ITT[0x%08x] - t_task_cdbs: %d t_task_cdbs_left:"
" %d t_task_cdbs_sent: %d -- t_transport_active: %d"
" t_transport_stop: %d t_transport_sent: %d\n",
cmd->se_tfo->get_task_tag(cmd),
- cmd->t_task->t_task_cdbs,
- atomic_read(&cmd->t_task->t_task_cdbs_left),
- atomic_read(&cmd->t_task->t_task_cdbs_sent),
- atomic_read(&cmd->t_task->t_transport_active),
- atomic_read(&cmd->t_task->t_transport_stop),
- atomic_read(&cmd->t_task->t_transport_sent));
+ cmd->t_task.t_task_cdbs,
+ atomic_read(&cmd->t_task.t_task_cdbs_left),
+ atomic_read(&cmd->t_task.t_task_cdbs_sent),
+ atomic_read(&cmd->t_task.t_transport_active),
+ atomic_read(&cmd->t_task.t_transport_stop),
+ atomic_read(&cmd->t_task.t_transport_sent));
if (atomic_read(&task->task_active)) {
atomic_set(&task->task_stop, 1);
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
DEBUG_DO("Waiting for task: %p to shutdown for dev:"
" %p\n", task, dev);
@@ -5842,8 +5720,8 @@ static void transport_processing_shutdown(struct se_device *dev)
DEBUG_DO("Completed task: %p shutdown for dev: %p\n",
task, dev);
- spin_lock_irqsave(&cmd->t_task->t_state_lock, flags);
- atomic_dec(&cmd->t_task->t_task_cdbs_left);
+ spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ atomic_dec(&cmd->t_task.t_task_cdbs_left);
atomic_set(&task->task_active, 0);
atomic_set(&task->task_stop, 0);
@@ -5853,39 +5731,39 @@ static void transport_processing_shutdown(struct se_device *dev)
}
__transport_stop_task_timer(task, &flags);
- if (!(atomic_dec_and_test(&cmd->t_task->t_task_cdbs_ex_left))) {
+ if (!(atomic_dec_and_test(&cmd->t_task.t_task_cdbs_ex_left))) {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
DEBUG_DO("Skipping task: %p, dev: %p for"
" t_task_cdbs_ex_left: %d\n", task, dev,
- atomic_read(&cmd->t_task->t_task_cdbs_ex_left));
+ atomic_read(&cmd->t_task.t_task_cdbs_ex_left));
spin_lock_irqsave(&dev->execute_task_lock, flags);
continue;
}
- if (atomic_read(&cmd->t_task->t_transport_active)) {
+ if (atomic_read(&cmd->t_task.t_transport_active)) {
DEBUG_DO("got t_transport_active = 1 for task: %p, dev:"
" %p\n", task, dev);
- if (atomic_read(&cmd->t_task->t_fe_count)) {
+ if (atomic_read(&cmd->t_task.t_fe_count)) {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
transport_send_check_condition_and_sense(
cmd, TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE,
0);
transport_remove_cmd_from_queue(cmd,
- &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ &cmd->se_dev->dev_queue_obj);
transport_lun_remove_cmd(cmd);
transport_cmd_check_stop(cmd, 1, 0);
} else {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
transport_remove_cmd_from_queue(cmd,
- &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ &cmd->se_dev->dev_queue_obj);
transport_lun_remove_cmd(cmd);
@@ -5899,22 +5777,22 @@ static void transport_processing_shutdown(struct se_device *dev)
DEBUG_DO("Got t_transport_active = 0 for task: %p, dev: %p\n",
task, dev);
- if (atomic_read(&cmd->t_task->t_fe_count)) {
+ if (atomic_read(&cmd->t_task.t_fe_count)) {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
transport_send_check_condition_and_sense(cmd,
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
transport_remove_cmd_from_queue(cmd,
- &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ &cmd->se_dev->dev_queue_obj);
transport_lun_remove_cmd(cmd);
transport_cmd_check_stop(cmd, 1, 0);
} else {
spin_unlock_irqrestore(
- &cmd->t_task->t_state_lock, flags);
+ &cmd->t_task.t_state_lock, flags);
transport_remove_cmd_from_queue(cmd,
- &cmd->se_lun->lun_se_dev->dev_queue_obj);
+ &cmd->se_dev->dev_queue_obj);
transport_lun_remove_cmd(cmd);
if (transport_cmd_check_stop(cmd, 1, 0))
@@ -5927,15 +5805,12 @@ static void transport_processing_shutdown(struct se_device *dev)
/*
* Empty the struct se_device's struct se_cmd list.
*/
- while ((qr = transport_get_qr_from_queue(&dev->dev_queue_obj))) {
- cmd = qr->cmd;
- state = qr->state;
- kfree(qr);
+ while ((cmd = transport_get_cmd_from_queue(&dev->dev_queue_obj))) {
DEBUG_DO("From Device Queue: cmd: %p t_state: %d\n",
- cmd, state);
+ cmd, cmd->t_state);
- if (atomic_read(&cmd->t_task->t_fe_count)) {
+ if (atomic_read(&cmd->t_task.t_fe_count)) {
transport_send_check_condition_and_sense(cmd,
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
@@ -5955,10 +5830,9 @@ static void transport_processing_shutdown(struct se_device *dev)
*/
static int transport_processing_thread(void *param)
{
- int ret, t_state;
+ int ret;
struct se_cmd *cmd;
struct se_device *dev = (struct se_device *) param;
- struct se_queue_req *qr;
set_user_nice(current, -20);
@@ -5980,15 +5854,11 @@ static int transport_processing_thread(void *param)
get_cmd:
__transport_execute_tasks(dev);
- qr = transport_get_qr_from_queue(&dev->dev_queue_obj);
- if (!(qr))
+ cmd = transport_get_cmd_from_queue(&dev->dev_queue_obj);
+ if (!cmd)
continue;
- cmd = qr->cmd;
- t_state = qr->state;
- kfree(qr);
-
- switch (t_state) {
+ switch (cmd->t_state) {
case TRANSPORT_NEW_CMD_MAP:
if (!(cmd->se_tfo->new_cmd_map)) {
printk(KERN_ERR "cmd->se_tfo->new_cmd_map is"
@@ -6039,7 +5909,7 @@ get_cmd:
default:
printk(KERN_ERR "Unknown t_state: %d deferred_t_state:"
" %d for ITT: 0x%08x i_state: %d on SE LUN:"
- " %u\n", t_state, cmd->deferred_t_state,
+ " %u\n", cmd->t_state, cmd->deferred_t_state,
cmd->se_tfo->get_task_tag(cmd),
cmd->se_tfo->get_cmd_state(cmd),
cmd->se_lun->unpacked_lun);
diff --git a/drivers/target/target_core_ua.c b/drivers/target/target_core_ua.c
index 16f41d188e2..3b8b02cf4b4 100644
--- a/drivers/target/target_core_ua.c
+++ b/drivers/target/target_core_ua.c
@@ -208,7 +208,7 @@ void core_scsi3_ua_for_check_condition(
u8 *asc,
u8 *ascq)
{
- struct se_device *dev = cmd->se_lun->lun_se_dev;
+ struct se_device *dev = cmd->se_dev;
struct se_dev_entry *deve;
struct se_session *sess = cmd->se_sess;
struct se_node_acl *nacl;
@@ -270,7 +270,7 @@ void core_scsi3_ua_for_check_condition(
nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
(dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" :
"Releasing", dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl,
- cmd->orig_fe_lun, cmd->t_task->t_task_cdb[0], *asc, *ascq);
+ cmd->orig_fe_lun, cmd->t_task.t_task_cdb[0], *asc, *ascq);
}
int core_scsi3_ua_clear_for_request_sense(
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 19b2b994831..6d9553bbba3 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -72,16 +72,16 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
caller, cmd, cmd->cdb);
printk(KERN_INFO "%s: cmd %p lun %d\n", caller, cmd, cmd->lun);
- task = se_cmd->t_task;
+ task = &se_cmd->t_task;
printk(KERN_INFO "%s: cmd %p task %p se_num %u buf %p len %u se_cmd_flags <0x%x>\n",
caller, cmd, task, task->t_tasks_se_num,
task->t_task_buf, se_cmd->data_length, se_cmd->se_cmd_flags);
- if (task->t_mem_list)
- list_for_each_entry(mem, task->t_mem_list, se_list)
- printk(KERN_INFO "%s: cmd %p mem %p page %p "
- "len 0x%x off 0x%x\n",
- caller, cmd, mem,
- mem->se_page, mem->se_len, mem->se_off);
+
+ list_for_each_entry(mem, &task->t_mem_list, se_list)
+ printk(KERN_INFO "%s: cmd %p mem %p page %p "
+ "len 0x%x off 0x%x\n",
+ caller, cmd, mem,
+ mem->se_page, mem->se_len, mem->se_off);
sp = cmd->seq;
if (sp) {
ep = fc_seq_exch(sp);
@@ -262,9 +262,9 @@ int ft_write_pending(struct se_cmd *se_cmd)
* TCM/LIO target
*/
transport_do_task_sg_chain(se_cmd);
- cmd->sg = se_cmd->t_task->t_tasks_sg_chained;
+ cmd->sg = se_cmd->t_task.t_tasks_sg_chained;
cmd->sg_cnt =
- se_cmd->t_task->t_tasks_sg_chained_no;
+ se_cmd->t_task.t_tasks_sg_chained_no;
}
if (cmd->sg && lport->tt.ddp_setup(lport, ep->xid,
cmd->sg, cmd->sg_cnt))
@@ -438,7 +438,7 @@ static void ft_send_tm(struct ft_cmd *cmd)
switch (fcp->fc_tm_flags) {
case FCP_TMF_LUN_RESET:
cmd->lun = scsilun_to_int((struct scsi_lun *)fcp->fc_lun);
- if (transport_get_lun_for_tmr(&cmd->se_cmd, cmd->lun) < 0) {
+ if (transport_lookup_tmr_lun(&cmd->se_cmd, cmd->lun) < 0) {
/*
* Make sure to clean up newly allocated TMR request
* since "unable to handle TMR request because failed
@@ -637,7 +637,7 @@ static void ft_send_cmd(struct ft_cmd *cmd)
fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd);
cmd->lun = scsilun_to_int((struct scsi_lun *)fcp->fc_lun);
- ret = transport_get_lun_for_cmd(&cmd->se_cmd, cmd->lun);
+ ret = transport_lookup_cmd_lun(&cmd->se_cmd, cmd->lun);
if (ret < 0) {
ft_dump_cmd(cmd, __func__);
transport_send_check_condition_and_sense(&cmd->se_cmd,
@@ -650,13 +650,13 @@ static void ft_send_cmd(struct ft_cmd *cmd)
FT_IO_DBG("r_ctl %x alloc task ret %d\n", fh->fh_r_ctl, ret);
ft_dump_cmd(cmd, __func__);
- if (ret == -1) {
+ if (ret == -ENOMEM) {
transport_send_check_condition_and_sense(se_cmd,
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
transport_generic_free_cmd(se_cmd, 0, 1, 0);
return;
}
- if (ret == -2) {
+ if (ret == -EINVAL) {
if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
ft_queue_status(se_cmd);
else
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 8c5067c6572..58e4745749d 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -331,7 +331,7 @@ static struct se_portal_group *ft_add_tpg(
transport_init_queue_obj(&tpg->qobj);
ret = core_tpg_register(&ft_configfs->tf_ops, wwn, &tpg->se_tpg,
- (void *)tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ tpg, TRANSPORT_TPG_TYPE_NORMAL);
if (ret < 0) {
kfree(tpg);
return NULL;
diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c
index 47efcfb9f4b..f18af6e99b8 100644
--- a/drivers/target/tcm_fc/tfc_io.c
+++ b/drivers/target/tcm_fc/tfc_io.c
@@ -90,15 +90,14 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
lport = ep->lp;
cmd->seq = lport->tt.seq_start_next(cmd->seq);
- task = se_cmd->t_task;
- BUG_ON(!task);
+ task = &se_cmd->t_task;
remaining = se_cmd->data_length;
/*
* Setup to use first mem list entry if any.
*/
if (task->t_tasks_se_num) {
- mem = list_first_entry(task->t_mem_list,
+ mem = list_first_entry(&task->t_mem_list,
struct se_mem, se_list);
mem_len = mem->se_len;
mem_off = mem->se_off;
@@ -236,8 +235,7 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
u32 f_ctl;
void *buf;
- task = se_cmd->t_task;
- BUG_ON(!task);
+ task = &se_cmd->t_task;
fh = fc_frame_header_get(fp);
if (!(ntoh24(fh->fh_f_ctl) & FC_FC_REL_OFF))
@@ -315,7 +313,7 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
* Setup to use first mem list entry if any.
*/
if (task->t_tasks_se_num) {
- mem = list_first_entry(task->t_mem_list,
+ mem = list_first_entry(&task->t_mem_list,
struct se_mem, se_list);
mem_len = mem->se_len;
mem_off = mem->se_off;