Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Merge commit. Changes below are compared with the first parent: 70a3a06d.
Changes
21 files changed · +563 −229
Only the first 600 diff lines are shown. Download the complete patch.
drivers/target/iscsi/iscsi_target.c
View filediff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 339f97f..23a98e6 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -264,16 +264,50 @@ int iscsit_deaccess_np(struct iscsi_np *np, struct iscsi_portal_group *tpg)
return 0;
}
-static struct iscsi_np *iscsit_get_np(
+bool iscsit_check_np_match(
struct __kernel_sockaddr_storage *sockaddr,
+ struct iscsi_np *np,
int network_transport)
{
struct sockaddr_in *sock_in, *sock_in_e;
struct sockaddr_in6 *sock_in6, *sock_in6_e;
- struct iscsi_np *np;
- int ip_match = 0;
+ bool ip_match = false;
u16 port;
+ if (sockaddr->ss_family == AF_INET6) {
+ sock_in6 = (struct sockaddr_in6 *)sockaddr;
+ sock_in6_e = (struct sockaddr_in6 *)&np->np_sockaddr;
+
+ if (!memcmp(&sock_in6->sin6_addr.in6_u,
+ &sock_in6_e->sin6_addr.in6_u,
+ sizeof(struct in6_addr)))
+ ip_match = true;
+
+ port = ntohs(sock_in6->sin6_port);
+ } else {
+ sock_in = (struct sockaddr_in *)sockaddr;
+ sock_in_e = (struct sockaddr_in *)&np->np_sockaddr;
+
+ if (sock_in->sin_addr.s_addr == sock_in_e->sin_addr.s_addr)
+ ip_match = true;
+
+ port = ntohs(sock_in->sin_port);
+ }
+
+ if ((ip_match == true) && (np->np_port == port) &&
+ (np->np_network_transport == network_transport))
+ return true;
+
+ return false;
+}
+
+static struct iscsi_np *iscsit_get_np(
+ struct __kernel_sockaddr_storage *sockaddr,
+ int network_transport)
+{
+ struct iscsi_np *np;
+ bool match;
+
spin_lock_bh(&np_lock);
list_for_each_entry(np, &g_np_list, np_list) {
spin_lock(&np->np_thread_lock);
@@ -282,29 +316,8 @@ static struct iscsi_np *iscsit_get_np(
continue;
}
- if (sockaddr->ss_family == AF_INET6) {
- sock_in6 = (struct sockaddr_in6 *)sockaddr;
- sock_in6_e = (struct sockaddr_in6 *)&np->np_sockaddr;
-
- if (!memcmp(&sock_in6->sin6_addr.in6_u,
- &sock_in6_e->sin6_addr.in6_u,
- sizeof(struct in6_addr)))
- ip_match = 1;
-
- port = ntohs(sock_in6->sin6_port);
- } else {
- sock_in = (struct sockaddr_in *)sockaddr;
- sock_in_e = (struct sockaddr_in *)&np->np_sockaddr;
-
- if (sock_in->sin_addr.s_addr ==
- sock_in_e->sin_addr.s_addr)
- ip_match = 1;
-
- port = ntohs(sock_in->sin_port);
- }
-
- if ((ip_match == 1) && (np->np_port == port) &&
- (np->np_network_transport == network_transport)) {
+ match = iscsit_check_np_match(sockaddr, np, network_transport);
+ if (match == true) {
/*
* Increment the np_exports reference count now to
* prevent iscsit_del_np() below from being called
drivers/target/iscsi/iscsi_target.h
View filediff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h
index f1e4f31..b1a1e63 100644
--- a/drivers/target/iscsi/iscsi_target.h
+++ b/drivers/target/iscsi/iscsi_target.h
@@ -8,6 +8,8 @@ extern struct iscsi_tiqn *iscsit_add_tiqn(unsigned char *);
extern void iscsit_del_tiqn(struct iscsi_tiqn *);
extern int iscsit_access_np(struct iscsi_np *, struct iscsi_portal_group *);
extern int iscsit_deaccess_np(struct iscsi_np *, struct iscsi_portal_group *);
+extern bool iscsit_check_np_match(struct __kernel_sockaddr_storage *,
+ struct iscsi_np *, int);
extern struct iscsi_np *iscsit_add_np(struct __kernel_sockaddr_storage *,
char *, int);
extern int iscsit_reset_np_thread(struct iscsi_np *, struct iscsi_tpg_np *,
drivers/target/iscsi/iscsi_target_parameters.c
View filediff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index d891642..ca2be40 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -1095,11 +1095,11 @@ static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
SET_PSTATE_REPLY_OPTIONAL(param);
}
} else if (IS_TYPE_NUMBER(param)) {
- char *tmpptr, buf[10];
+ char *tmpptr, buf[11];
u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
- memset(buf, 0, 10);
+ memset(buf, 0, sizeof(buf));
if (!strcmp(param->name, MAXCONNECTIONS) ||
!strcmp(param->name, MAXBURSTLENGTH) ||
@@ -1503,8 +1503,8 @@ static int iscsi_enforce_integrity_rules(
FirstBurstLength = simple_strtoul(param->value,
&tmpptr, 0);
if (FirstBurstLength > MaxBurstLength) {
- char tmpbuf[10];
- memset(tmpbuf, 0, 10);
+ char tmpbuf[11];
+ memset(tmpbuf, 0, sizeof(tmpbuf));
sprintf(tmpbuf, "%u", MaxBurstLength);
if (iscsi_update_param_value(param, tmpbuf))
return -1;
drivers/target/iscsi/iscsi_target_stat.c
View filediff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c
index 421d694..464b420 100644
--- a/drivers/target/iscsi/iscsi_target_stat.c
+++ b/drivers/target/iscsi/iscsi_target_stat.c
@@ -410,14 +410,16 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr_type(
struct iscsi_tiqn *tiqn = container_of(igrps,
struct iscsi_tiqn, tiqn_stat_grps);
struct iscsi_login_stats *lstat = &tiqn->login_stats;
- unsigned char buf[8];
+ int ret;
spin_lock(&lstat->lock);
- snprintf(buf, 8, "%s", (lstat->last_intr_fail_ip_addr != NULL) ?
- "ipv6" : "ipv4");
+ if (lstat->last_intr_fail_ip_family == AF_INET6)
+ ret = snprintf(page, PAGE_SIZE, "ipv6\n");
+ else
+ ret = snprintf(page, PAGE_SIZE, "ipv4\n");
spin_unlock(&lstat->lock);
- return snprintf(page, PAGE_SIZE, "%s\n", buf);
+ return ret;
}
ISCSI_STAT_TGT_ATTR_RO(fail_intr_addr_type);
@@ -427,16 +429,19 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr(
struct iscsi_tiqn *tiqn = container_of(igrps,
struct iscsi_tiqn, tiqn_stat_grps);
struct iscsi_login_stats *lstat = &tiqn->login_stats;
- unsigned char buf[32];
+ int ret;
spin_lock(&lstat->lock);
- if (lstat->last_intr_fail_ip_family == AF_INET6)
- snprintf(buf, 32, "[%s]", lstat->last_intr_fail_ip_addr);
- else
- snprintf(buf, 32, "%s", lstat->last_intr_fail_ip_addr);
+ if (lstat->last_intr_fail_ip_family == AF_INET6) {
+ ret = snprintf(page, PAGE_SIZE, "[%s]\n",
+ lstat->last_intr_fail_ip_addr);
+ } else {
+ ret = snprintf(page, PAGE_SIZE, "%s\n",
+ lstat->last_intr_fail_ip_addr);
+ }
spin_unlock(&lstat->lock);
- return snprintf(page, PAGE_SIZE, "%s\n", buf);
+ return ret;
}
ISCSI_STAT_TGT_ATTR_RO(fail_intr_addr);
drivers/target/iscsi/iscsi_target_tpg.c
View filediff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index de9ea32..ee8f8c6 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -422,6 +422,35 @@ struct iscsi_tpg_np *iscsit_tpg_locate_child_np(
return NULL;
}
+static bool iscsit_tpg_check_network_portal(
+ struct iscsi_tiqn *tiqn,
+ struct __kernel_sockaddr_storage *sockaddr,
+ int network_transport)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np;
+ struct iscsi_np *np;
+ bool match = false;
+
+ spin_lock(&tiqn->tiqn_tpg_lock);
+ list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
+
+ spin_lock(&tpg->tpg_np_lock);
+ list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
+ np = tpg_np->tpg_np;
+
+ match = iscsit_check_np_match(sockaddr, np,
+ network_transport);
+ if (match == true)
+ break;
+ }
+ spin_unlock(&tpg->tpg_np_lock);
+ }
+ spin_unlock(&tiqn->tiqn_tpg_lock);
+
+ return match;
+}
+
struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
struct iscsi_portal_group *tpg,
struct __kernel_sockaddr_storage *sockaddr,
@@ -432,6 +461,16 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
struct iscsi_np *np;
struct iscsi_tpg_np *tpg_np;
+ if (!tpg_np_parent) {
+ if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr,
+ network_transport) == true) {
+ pr_err("Network Portal: %s already exists on a"
+ " different TPG on %s\n", ip_str,
+ tpg->tpg_tiqn->tiqn);
+ return ERR_PTR(-EEXIST);
+ }
+ }
+
tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL);
if (!tpg_np) {
pr_err("Unable to allocate memory for"
drivers/target/target_core_configfs.c
View filediff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 4efb61b..43b7ac6 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -609,6 +609,9 @@ static struct target_core_dev_attrib_attribute \
__CONFIGFS_EATTR_RO(_name, \
target_core_dev_show_attr_##_name);
+DEF_DEV_ATTRIB(emulate_model_alias);
+SE_DEV_ATTR(emulate_model_alias, S_IRUGO | S_IWUSR);
+
DEF_DEV_ATTRIB(emulate_dpo);
SE_DEV_ATTR(emulate_dpo, S_IRUGO | S_IWUSR);
@@ -681,6 +684,7 @@ SE_DEV_ATTR(max_write_same_len, S_IRUGO | S_IWUSR);
CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group);
static struct configfs_attribute *target_core_dev_attrib_attrs[] = {
+ &target_core_dev_attrib_emulate_model_alias.attr,
&target_core_dev_attrib_emulate_dpo.attr,
&target_core_dev_attrib_emulate_fua_write.attr,
&target_core_dev_attrib_emulate_fua_read.attr,
drivers/target/target_core_device.c
View filediff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index f2aa754..2e4d655 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -713,6 +713,44 @@ int se_dev_set_max_write_same_len(
return 0;
}
+static void dev_set_t10_wwn_model_alias(struct se_device *dev)
+{
+ const char *configname;
+
+ configname = config_item_name(&dev->dev_group.cg_item);
+ if (strlen(configname) >= 16) {
+ pr_warn("dev[%p]: Backstore name '%s' is too long for "
+ "INQUIRY_MODEL, truncating to 16 bytes\n", dev,
+ configname);
+ }
+ snprintf(&dev->t10_wwn.model[0], 16, "%s", configname);
+}
+
+int se_dev_set_emulate_model_alias(struct se_device *dev, int flag)
+{
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change model alias"
+ " while export_count is %d\n",
+ dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ if (flag != 0 && flag != 1) {
+ pr_err("Illegal value %d\n", flag);
+ return -EINVAL;
+ }
+
+ if (flag) {
+ dev_set_t10_wwn_model_alias(dev);
+ } else {
+ strncpy(&dev->t10_wwn.model[0],
+ dev->transport->inquiry_prod, 16);
+ }
+ dev->dev_attrib.emulate_model_alias = flag;
+
+ return 0;
+}
+
int se_dev_set_emulate_dpo(struct se_device *dev, int flag)
{
if (flag != 0 && flag != 1) {
@@ -772,6 +810,12 @@ int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
pr_err("emulate_write_cache not supported for pSCSI\n");
return -EINVAL;
}
+ if (dev->transport->get_write_cache) {
+ pr_warn("emulate_write_cache cannot be changed when underlying"
+ " HW reports WriteCacheEnabled, ignoring request\n");
+ return 0;
+ }
+
dev->dev_attrib.emulate_write_cache = flag;
pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
dev, dev->dev_attrib.emulate_write_cache);
@@ -1182,24 +1226,18 @@ static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked
struct se_lun_acl *core_dev_init_initiator_node_lun_acl(
struct se_portal_group *tpg,
+ struct se_node_acl *nacl,
u32 mapped_lun,
- char *initiatorname,
int *ret)
{
struct se_lun_acl *lacl;
- struct se_node_acl *nacl;
- if (strlen(initiatorname) >= TRANSPORT_IQN_LEN) {
+ if (strlen(nacl->initiatorname) >= TRANSPORT_IQN_LEN) {
pr_err("%s InitiatorName exceeds maximum size.\n",
tpg->se_tpg_tfo->get_fabric_name());
*ret = -EOVERFLOW;
return NULL;
}
- nacl = core_tpg_get_initiator_node_acl(tpg, initiatorname);
- if (!nacl) {
- *ret = -EINVAL;
- return NULL;
- }
lacl = kzalloc(sizeof(struct se_lun_acl), GFP_KERNEL);
if (!lacl) {
pr_err("Unable to allocate memory for struct se_lun_acl.\n");
@@ -1210,7 +1248,8 @@ struct se_lun_acl *core_dev_init_initiator_node_lun_acl(
INIT_LIST_HEAD(&lacl->lacl_list);
lacl->mapped_lun = mapped_lun;
lacl->se_lun_nacl = nacl;
- snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
+ snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s",
+ nacl->initiatorname);
return lacl;
}
@@ -1390,6 +1429,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
dev->t10_alua.t10_dev = dev;
dev->dev_attrib.da_dev = dev;
+ dev->dev_attrib.emulate_model_alias = DA_EMULATE_MODEL_ALIAS;
dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO;
dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE;
dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ;
drivers/target/target_core_fabric_configfs.c
View filediff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index c57bbbc..04c775c 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -354,9 +354,17 @@ static struct config_group *target_fabric_make_mappedlun(
ret = -EINVAL;
goto out;
}
+ if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
+ pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG"
+ "-1: %u for Target Portal Group: %u\n", mapped_lun,
+ TRANSPORT_MAX_LUNS_PER_TPG-1,
+ se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
+ ret = -EINVAL;
+ goto out;
+ }
- lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
- config_item_name(acl_ci), &ret);
+ lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl,
+ mapped_lun, &ret);
if (!lacl) {
ret = -EINVAL;
goto out;
drivers/target/target_core_file.c
View filediff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index b9c8849..ca36a38 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -190,6 +190,11 @@ static int fd_configure_device(struct se_device *dev)
fd_dev->fd_dev_id = fd_host->fd_host_dev_id_count++;
fd_dev->fd_queue_depth = dev->queue_depth;
+ /*
+ * Limit WRITE_SAME w/ UNMAP=0 emulation to 8k Number of LBAs (NoLB)
+ * based upon struct iovec limit for vfs_writev()
+ */
+ dev->dev_attrib.max_write_same_len = 0x1000;
pr_debug("CORE_FILE[%u] - Added TCM FILEIO Device ID: %u at %s,"
" %llu total bytes\n", fd_host->fd_host_id, fd_dev->fd_dev_id,
@@ -328,6 +333,114 @@ fd_execute_sync_cache(struct se_cmd *cmd)
return 0;
}
+static unsigned char *
+fd_setup_write_same_buf(struct se_cmd *cmd, struct scatterlist *sg,
+ unsigned int len)
+{
+ struct se_device *se_dev = cmd->se_dev;
+ unsigned int block_size = se_dev->dev_attrib.block_size;
+ unsigned int i = 0, end;
+ unsigned char *buf, *p, *kmap_buf;
+
+ buf = kzalloc(min_t(unsigned int, len, PAGE_SIZE), GFP_KERNEL);
+ if (!buf) {
+ pr_err("Unable to allocate fd_execute_write_same buf\n");
+ return NULL;
+ }
+
+ kmap_buf = kmap(sg_page(sg)) + sg->offset;
+ if (!kmap_buf) {
+ pr_err("kmap() failed in fd_setup_write_same\n");
+ kfree(buf);
+ return NULL;
+ }
+ /*
+ * Fill local *buf to contain multiple WRITE_SAME blocks up to
+ * min(len, PAGE_SIZE)
+ */
+ p = buf;
+ end = min_t(unsigned int, len, PAGE_SIZE);
+
+ while (i < end) {
+ memcpy(p, kmap_buf, block_size);
+
+ i += block_size;
+ p += block_size;
+ }
+ kunmap(sg_page(sg));
+
+ return buf;
+}
+
+static sense_reason_t
+fd_execute_write_same(struct se_cmd *cmd)
+{
+ struct se_device *se_dev = cmd->se_dev;
+ struct fd_dev *fd_dev = FD_DEV(se_dev);
+ struct file *f = fd_dev->fd_file;
+ struct scatterlist *sg;
+ struct iovec *iov;
+ mm_segment_t old_fs;
+ sector_t nolb = sbc_get_write_same_sectors(cmd);
+ loff_t pos = cmd->t_task_lba * se_dev->dev_attrib.block_size;
+ unsigned int len, len_tmp, iov_num;
+ int i, rc;
+ unsigned char *buf;
+
+ if (!nolb) {
+ target_complete_cmd(cmd, SAM_STAT_GOOD);
+ return 0;
+ }
+ sg = &cmd->t_data_sg[0];
+
+ if (cmd->t_data_nents > 1 ||
+ sg->length != cmd->se_dev->dev_attrib.block_size) {
+ pr_err("WRITE_SAME: Illegal SGL t_data_nents: %u length: %u"
+ " block_size: %u\n", cmd->t_data_nents, sg->length,
+ cmd->se_dev->dev_attrib.block_size);
+ return TCM_INVALID_CDB_FIELD;
+ }
+
+ len = len_tmp = nolb * se_dev->dev_attrib.block_size;
+ iov_num = DIV_ROUND_UP(len, PAGE_SIZE);
+
+ buf = fd_setup_write_same_buf(cmd, sg, len);
+ if (!buf)
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+
+ iov = vzalloc(sizeof(struct iovec) * iov_num);
+ if (!iov) {
+ pr_err("Unable to allocate fd_execute_write_same iovecs\n");
+ kfree(buf);
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+ /*
+ * Map the single fabric received scatterlist block now populated
+ * in *buf into each iovec for I/O submission.
+ */
+ for (i = 0; i < iov_num; i++) {
+ iov[i].iov_base = buf;
+ iov[i].iov_len = min_t(unsigned int, len_tmp, PAGE_SIZE);
+ len_tmp -= iov[i].iov_len;
+ }
+
+ old_fs = get_fs();
+ set_fs(get_ds());
+ rc = vfs_writev(f, &iov[0], iov_num, &pos);
+ set_fs(old_fs);
+
+ vfree(iov);
+ kfree(buf);
+
+ if (rc < 0 || rc != len) {
+ pr_err("vfs_writev() returned %d for write same\n", rc);
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+
+ target_complete_cmd(cmd, SAM_STAT_GOOD);
+ return 0;
+}
+
static sense_reason_t
fd_execute_rw(struct se_cmd *cmd)
{
@@ -486,6 +599,7 @@ static sector_t fd_get_blocks(struct se_device *dev)
static struct sbc_ops fd_sbc_ops = {
.execute_rw = fd_execute_rw,
.execute_sync_cache = fd_execute_sync_cache,
+ .execute_write_same = fd_execute_write_same,
};
static sense_reason_t
drivers/target/target_core_iblock.c
View filediff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index b526d23..c73f4a9 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -154,6 +154,7 @@ static int iblock_configure_device(struct se_device *dev)
if (blk_queue_nonrot(q))
dev->dev_attrib.is_nonrot = 1;
+
return 0;
out_free_bioset:
@@ -390,10 +391,19 @@ iblock_execute_unmap(struct se_cmd *cmd)
sense_reason_t ret = 0;
int dl, bd_dl, err;
+ /* We never set ANC_SUP */
+ if (cmd->t_task_cdb[1])
+ return TCM_INVALID_CDB_FIELD;
+
+ if (cmd->data_length == 0) {
+ target_complete_cmd(cmd, SAM_STAT_GOOD);
+ return 0;
+ }
+
if (cmd->data_length < 8) {
pr_warn("UNMAP parameter list length %u too small\n",
cmd->data_length);
- return TCM_INVALID_PARAMETER_LIST;
+ return TCM_PARAMETER_LIST_LENGTH_ERROR;
}
buf = transport_kmap_data_sg(cmd);
@@ -463,7 +473,7 @@ iblock_execute_write_same_unmap(struct se_cmd *cmd)
int rc;
rc = blkdev_issue_discard(ib_dev->ibd_bd, cmd->t_task_lba,
- spc_get_write_same_sectors(cmd), GFP_KERNEL, 0);
+ sbc_get_write_same_sectors(cmd), GFP_KERNEL, 0);
if (rc < 0) {
pr_warn("blkdev_issue_discard() failed: %d\n", rc);
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -481,7 +491,7 @@ iblock_execute_write_same(struct se_cmd *cmd)
struct bio *bio;
struct bio_list list;
sector_t block_lba = cmd->t_task_lba;
- sector_t sectors = spc_get_write_same_sectors(cmd);
+ sector_t sectors = sbc_get_write_same_sectors(cmd);
sg = &cmd->t_data_sg[0];
@@ -654,20 +664,24 @@ iblock_execute_rw(struct se_cmd *cmd)
u32 sg_num = sgl_nents;
sector_t block_lba;
unsigned bio_cnt;
- int rw;
+ int rw = 0;
int i;
if (data_direction == DMA_TO_DEVICE) {
+ struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+ struct request_queue *q = bdev_get_queue(ib_dev->ibd_bd);
/*
- * Force data to disk if we pretend to not have a volatile
- * write cache, or the initiator set the Force Unit Access bit.
+ * Force writethrough using WRITE_FUA if a volatile write cache
+ * is not enabled, or if initiator set the Force Unit Access bit.
*/
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drivers/target/target_core_internal.h
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drivers/target/target_core_rd.c
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drivers/target/target_core_sbc.c
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drivers/target/target_core_spc.c
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drivers/target/target_core_tmr.c
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drivers/target/target_core_tpg.c
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drivers/target/target_core_transport.c
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drivers/vhost/tcm_vhost.c
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drivers/vhost/tcm_vhost.h
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include/target/target_core_backend.h
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include/target/target_core_base.h
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