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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-21 13:21:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-21 13:21:19 -0800
commite20d3ef5406d3a28b76a63905b2a6bd3fb95c377 (patch)
tree63711e10f8c746eaa154b18bd7f05e111b79151d /drivers/target
parent1acd2de5facd7fbea499aea64a3a3d0ec7bb9b51 (diff)
parentaa04dae454d087376d97f44710c4422df030a8f2 (diff)
downloadlinux-e20d3ef5406d3a28b76a63905b2a6bd3fb95c377.tar.bz2
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger: "The highlights this round include: - Update vhost-scsi to support F_ANY_LAYOUT using mm/iov_iter.c logic, and signal VERSION_1 support (MST + Viro + nab) - Fix iscsi/iser-target to remove problematic active_ts_set usage (Gavin Guo) - Update iscsi/iser-target to support multi-sequence sendtargets (Sagi) - Fix original PR_APTPL_BUF_LEN 8k size limitation (Martin Svec) - Add missing WRITE_SAME end-of-device sanity check (Bart) - Check for LBA + sectors wrap-around in sbc_parse_cdb() (nab) - Other various minor SPC/SBC compliance fixes based upon Ronnie Sahlberg test suite (nab)" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (32 commits) target: Set LBPWS10 bit in Logical Block Provisioning EVPD target: Fail UNMAP when emulate_tpu=0 target: Fail WRITE_SAME w/ UNMAP=1 when emulate_tpws=0 target: Add sanity checks for DPO/FUA bit usage target: Perform PROTECT sanity checks for WRITE_SAME target: Fail I/O with PROTECT bit when protection is unsupported target: Check for LBA + sectors wrap-around in sbc_parse_cdb target: Add missing WRITE_SAME end-of-device sanity check iscsi-target: Avoid IN_LOGOUT failure case for iser-target target: Fix PR_APTPL_BUF_LEN buffer size limitation iscsi-target: Drop problematic active_ts_list usage iscsi/iser-target: Support multi-sequence sendtargets text response iser-target: Remove duplicate function names vhost/scsi: potential memory corruption vhost/scsi: Global tcm_vhost -> vhost_scsi rename vhost/scsi: Drop left-over scsi_tcq.h include vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq vhost/scsi: Add ANY_LAYOUT iov -> sgl mapping prerequisites vhost/scsi: Change vhost_scsi_map_to_sgl to accept iov ptr + len ...
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/iscsi/iscsi_target.c105
-rw-r--r--drivers/target/iscsi/iscsi_target_auth.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c17
-rw-r--r--drivers/target/iscsi/iscsi_target_core.h883
-rw-r--r--drivers/target/iscsi/iscsi_target_datain_values.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_device.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_erl0.c6
-rw-r--r--drivers/target/iscsi/iscsi_target_erl1.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_erl2.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_login.c4
-rw-r--r--drivers/target/iscsi/iscsi_target_nego.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_nodeattrib.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_parameters.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_seq_pdu_list.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_stat.c4
-rw-r--r--drivers/target/iscsi/iscsi_target_stat.h64
-rw-r--r--drivers/target/iscsi/iscsi_target_tmr.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_tpg.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_tq.c30
-rw-r--r--drivers/target/iscsi/iscsi_target_util.c12
-rw-r--r--drivers/target/iscsi/iscsi_target_util.h1
-rw-r--r--drivers/target/target_core_file.c5
-rw-r--r--drivers/target/target_core_iblock.c5
-rw-r--r--drivers/target/target_core_pr.c25
-rw-r--r--drivers/target/target_core_sbc.c140
-rw-r--r--drivers/target/target_core_spc.c2
26 files changed, 239 insertions, 1086 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index aebde3289c50..50bad55a0c42 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -30,7 +30,7 @@
#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_tq.h"
@@ -45,7 +45,7 @@
#include "iscsi_target_util.h"
#include "iscsi_target.h"
#include "iscsi_target_device.h"
-#include "iscsi_target_stat.h"
+#include <target/iscsi/iscsi_target_stat.h>
#include <target/iscsi/iscsi_transport.h>
@@ -968,11 +968,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt;
if (hdr->flags & ISCSI_FLAG_CMD_READ) {
- spin_lock_bh(&conn->sess->ttt_lock);
- cmd->targ_xfer_tag = conn->sess->targ_xfer_tag++;
- if (cmd->targ_xfer_tag == 0xFFFFFFFF)
- cmd->targ_xfer_tag = conn->sess->targ_xfer_tag++;
- spin_unlock_bh(&conn->sess->ttt_lock);
+ cmd->targ_xfer_tag = session_get_next_ttt(conn->sess);
} else if (hdr->flags & ISCSI_FLAG_CMD_WRITE)
cmd->targ_xfer_tag = 0xFFFFFFFF;
cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
@@ -1998,6 +1994,7 @@ iscsit_setup_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
cmd->data_direction = DMA_NONE;
+ cmd->text_in_ptr = NULL;
return 0;
}
@@ -2011,9 +2008,13 @@ iscsit_process_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
int cmdsn_ret;
if (!text_in) {
- pr_err("Unable to locate text_in buffer for sendtargets"
- " discovery\n");
- goto reject;
+ cmd->targ_xfer_tag = be32_to_cpu(hdr->ttt);
+ if (cmd->targ_xfer_tag == 0xFFFFFFFF) {
+ pr_err("Unable to locate text_in buffer for sendtargets"
+ " discovery\n");
+ goto reject;
+ }
+ goto empty_sendtargets;
}
if (strncmp("SendTargets", text_in, 11) != 0) {
pr_err("Received Text Data that is not"
@@ -2040,6 +2041,7 @@ iscsit_process_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
spin_unlock_bh(&conn->cmd_lock);
+empty_sendtargets:
iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
@@ -3047,11 +3049,7 @@ static int iscsit_send_r2t(
int_to_scsilun(cmd->se_cmd.orig_fe_lun,
(struct scsi_lun *)&hdr->lun);
hdr->itt = cmd->init_task_tag;
- spin_lock_bh(&conn->sess->ttt_lock);
- r2t->targ_xfer_tag = conn->sess->targ_xfer_tag++;
- if (r2t->targ_xfer_tag == 0xFFFFFFFF)
- r2t->targ_xfer_tag = conn->sess->targ_xfer_tag++;
- spin_unlock_bh(&conn->sess->ttt_lock);
+ r2t->targ_xfer_tag = session_get_next_ttt(conn->sess);
hdr->ttt = cpu_to_be32(r2t->targ_xfer_tag);
hdr->statsn = cpu_to_be32(conn->stat_sn);
hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
@@ -3393,7 +3391,8 @@ static bool iscsit_check_inaddr_any(struct iscsi_np *np)
static int
iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
- enum iscsit_transport_type network_transport)
+ enum iscsit_transport_type network_transport,
+ int skip_bytes, bool *completed)
{
char *payload = NULL;
struct iscsi_conn *conn = cmd->conn;
@@ -3405,7 +3404,7 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
unsigned char buf[ISCSI_IQN_LEN+12]; /* iqn + "TargetName=" + \0 */
unsigned char *text_in = cmd->text_in_ptr, *text_ptr = NULL;
- buffer_len = max(conn->conn_ops->MaxRecvDataSegmentLength,
+ buffer_len = min(conn->conn_ops->MaxRecvDataSegmentLength,
SENDTARGETS_BUF_LIMIT);
payload = kzalloc(buffer_len, GFP_KERNEL);
@@ -3484,9 +3483,16 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
end_of_buf = 1;
goto eob;
}
- memcpy(payload + payload_len, buf, len);
- payload_len += len;
- target_name_printed = 1;
+
+ if (skip_bytes && len <= skip_bytes) {
+ skip_bytes -= len;
+ } else {
+ memcpy(payload + payload_len, buf, len);
+ payload_len += len;
+ target_name_printed = 1;
+ if (len > skip_bytes)
+ skip_bytes = 0;
+ }
}
len = sprintf(buf, "TargetAddress="
@@ -3502,15 +3508,24 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
end_of_buf = 1;
goto eob;
}
- memcpy(payload + payload_len, buf, len);
- payload_len += len;
+
+ if (skip_bytes && len <= skip_bytes) {
+ skip_bytes -= len;
+ } else {
+ memcpy(payload + payload_len, buf, len);
+ payload_len += len;
+ if (len > skip_bytes)
+ skip_bytes = 0;
+ }
}
spin_unlock(&tpg->tpg_np_lock);
}
spin_unlock(&tiqn->tiqn_tpg_lock);
eob:
- if (end_of_buf)
+ if (end_of_buf) {
+ *completed = false;
break;
+ }
if (cmd->cmd_flags & ICF_SENDTARGETS_SINGLE)
break;
@@ -3528,13 +3543,23 @@ iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
enum iscsit_transport_type network_transport)
{
int text_length, padding;
+ bool completed = true;
- text_length = iscsit_build_sendtargets_response(cmd, network_transport);
+ text_length = iscsit_build_sendtargets_response(cmd, network_transport,
+ cmd->read_data_done,
+ &completed);
if (text_length < 0)
return text_length;
+ if (completed) {
+ hdr->flags |= ISCSI_FLAG_CMD_FINAL;
+ } else {
+ hdr->flags |= ISCSI_FLAG_TEXT_CONTINUE;
+ cmd->read_data_done += text_length;
+ if (cmd->targ_xfer_tag == 0xFFFFFFFF)
+ cmd->targ_xfer_tag = session_get_next_ttt(conn->sess);
+ }
hdr->opcode = ISCSI_OP_TEXT_RSP;
- hdr->flags |= ISCSI_FLAG_CMD_FINAL;
padding = ((-text_length) & 3);
hton24(hdr->dlength, text_length);
hdr->itt = cmd->init_task_tag;
@@ -3543,21 +3568,25 @@ iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
hdr->statsn = cpu_to_be32(cmd->stat_sn);
iscsit_increment_maxcmdsn(cmd, conn->sess);
+ /*
+ * Reset maxcmdsn_inc in multi-part text payload exchanges to
+ * correctly increment MaxCmdSN for each response answering a
+ * non immediate text request with a valid CmdSN.
+ */
+ cmd->maxcmdsn_inc = 0;
hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn);
- pr_debug("Built Text Response: ITT: 0x%08x, StatSN: 0x%08x,"
- " Length: %u, CID: %hu\n", cmd->init_task_tag, cmd->stat_sn,
- text_length, conn->cid);
+ pr_debug("Built Text Response: ITT: 0x%08x, TTT: 0x%08x, StatSN: 0x%08x,"
+ " Length: %u, CID: %hu F: %d C: %d\n", cmd->init_task_tag,
+ cmd->targ_xfer_tag, cmd->stat_sn, text_length, conn->cid,
+ !!(hdr->flags & ISCSI_FLAG_CMD_FINAL),
+ !!(hdr->flags & ISCSI_FLAG_TEXT_CONTINUE));
return text_length + padding;
}
EXPORT_SYMBOL(iscsit_build_text_rsp);
-/*
- * FIXME: Add support for F_BIT and C_BIT when the length is longer than
- * MaxRecvDataSegmentLength.
- */
static int iscsit_send_text_rsp(
struct iscsi_cmd *cmd,
struct iscsi_conn *conn)
@@ -4021,9 +4050,15 @@ static int iscsi_target_rx_opcode(struct iscsi_conn *conn, unsigned char *buf)
ret = iscsit_handle_task_mgt_cmd(conn, cmd, buf);
break;
case ISCSI_OP_TEXT:
- cmd = iscsit_allocate_cmd(conn, TASK_INTERRUPTIBLE);
- if (!cmd)
- goto reject;
+ if (hdr->ttt != cpu_to_be32(0xFFFFFFFF)) {
+ cmd = iscsit_find_cmd_from_itt(conn, hdr->itt);
+ if (!cmd)
+ goto reject;
+ } else {
+ cmd = iscsit_allocate_cmd(conn, TASK_INTERRUPTIBLE);
+ if (!cmd)
+ goto reject;
+ }
ret = iscsit_handle_text_cmd(conn, cmd, buf);
break;
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index ab4915c0d933..47e249dccb5f 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -22,7 +22,7 @@
#include <linux/err.h>
#include <linux/scatterlist.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_nego.h"
#include "iscsi_target_auth.h"
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 9059c1e0b26e..48384b675e62 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -28,7 +28,7 @@
#include <target/configfs_macros.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_device.h"
#include "iscsi_target_erl0.h"
@@ -36,7 +36,7 @@
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
#include "iscsi_target.h"
-#include "iscsi_target_stat.h"
+#include <target/iscsi/iscsi_target_stat.h>
#include "iscsi_target_configfs.h"
struct target_fabric_configfs *lio_target_fabric_configfs;
@@ -674,12 +674,9 @@ static ssize_t lio_target_nacl_show_info(
rb += sprintf(page+rb, "InitiatorAlias: %s\n",
sess->sess_ops->InitiatorAlias);
- rb += sprintf(page+rb, "LIO Session ID: %u "
- "ISID: 0x%02x %02x %02x %02x %02x %02x "
- "TSIH: %hu ", sess->sid,
- sess->isid[0], sess->isid[1], sess->isid[2],
- sess->isid[3], sess->isid[4], sess->isid[5],
- sess->tsih);
+ rb += sprintf(page+rb,
+ "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ",
+ sess->sid, sess->isid, sess->tsih);
rb += sprintf(page+rb, "SessionType: %s\n",
(sess->sess_ops->SessionType) ?
"Discovery" : "Normal");
@@ -1758,9 +1755,7 @@ static u32 lio_sess_get_initiator_sid(
/*
* iSCSI Initiator Session Identifier from RFC-3720.
*/
- return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
- sess->isid[0], sess->isid[1], sess->isid[2],
- sess->isid[3], sess->isid[4], sess->isid[5]);
+ return snprintf(buf, size, "%6phN", sess->isid);
}
static int lio_queue_data_in(struct se_cmd *se_cmd)
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
deleted file mode 100644
index cbcff38ac9b7..000000000000
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ /dev/null
@@ -1,883 +0,0 @@
-#ifndef ISCSI_TARGET_CORE_H
-#define ISCSI_TARGET_CORE_H
-
-#include <linux/in.h>
-#include <linux/configfs.h>
-#include <net/sock.h>
-#include <net/tcp.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/iscsi_proto.h>
-#include <target/target_core_base.h>
-
-#define ISCSIT_VERSION "v4.1.0"
-#define ISCSI_MAX_DATASN_MISSING_COUNT 16
-#define ISCSI_TX_THREAD_TCP_TIMEOUT 2
-#define ISCSI_RX_THREAD_TCP_TIMEOUT 2
-#define SECONDS_FOR_ASYNC_LOGOUT 10
-#define SECONDS_FOR_ASYNC_TEXT 10
-#define SECONDS_FOR_LOGOUT_COMP 15
-#define WHITE_SPACE " \t\v\f\n\r"
-#define ISCSIT_MIN_TAGS 16
-#define ISCSIT_EXTRA_TAGS 8
-#define ISCSIT_TCP_BACKLOG 256
-
-/* struct iscsi_node_attrib sanity values */
-#define NA_DATAOUT_TIMEOUT 3
-#define NA_DATAOUT_TIMEOUT_MAX 60
-#define NA_DATAOUT_TIMEOUT_MIX 2
-#define NA_DATAOUT_TIMEOUT_RETRIES 5
-#define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
-#define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
-#define NA_NOPIN_TIMEOUT 15
-#define NA_NOPIN_TIMEOUT_MAX 60
-#define NA_NOPIN_TIMEOUT_MIN 3
-#define NA_NOPIN_RESPONSE_TIMEOUT 30
-#define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
-#define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
-#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
-#define NA_RANDOM_DATAIN_SEQ_OFFSETS 0
-#define NA_RANDOM_R2T_OFFSETS 0
-
-/* struct iscsi_tpg_attrib sanity values */
-#define TA_AUTHENTICATION 1
-#define TA_LOGIN_TIMEOUT 15
-#define TA_LOGIN_TIMEOUT_MAX 30
-#define TA_LOGIN_TIMEOUT_MIN 5
-#define TA_NETIF_TIMEOUT 2
-#define TA_NETIF_TIMEOUT_MAX 15
-#define TA_NETIF_TIMEOUT_MIN 2
-#define TA_GENERATE_NODE_ACLS 0
-#define TA_DEFAULT_CMDSN_DEPTH 64
-#define TA_DEFAULT_CMDSN_DEPTH_MAX 512
-#define TA_DEFAULT_CMDSN_DEPTH_MIN 1
-#define TA_CACHE_DYNAMIC_ACLS 0
-/* Enabled by default in demo mode (generic_node_acls=1) */
-#define TA_DEMO_MODE_WRITE_PROTECT 1
-/* Disabled by default in production mode w/ explict ACLs */
-#define TA_PROD_MODE_WRITE_PROTECT 0
-#define TA_DEMO_MODE_DISCOVERY 1
-#define TA_DEFAULT_ERL 0
-#define TA_CACHE_CORE_NPS 0
-/* T10 protection information disabled by default */
-#define TA_DEFAULT_T10_PI 0
-
-#define ISCSI_IOV_DATA_BUFFER 5
-
-enum iscsit_transport_type {
- ISCSI_TCP = 0,
- ISCSI_SCTP_TCP = 1,
- ISCSI_SCTP_UDP = 2,
- ISCSI_IWARP_TCP = 3,
- ISCSI_IWARP_SCTP = 4,
- ISCSI_INFINIBAND = 5,
-};
-
-/* RFC-3720 7.1.4 Standard Connection State Diagram for a Target */
-enum target_conn_state_table {
- TARG_CONN_STATE_FREE = 0x1,
- TARG_CONN_STATE_XPT_UP = 0x3,
- TARG_CONN_STATE_IN_LOGIN = 0x4,
- TARG_CONN_STATE_LOGGED_IN = 0x5,
- TARG_CONN_STATE_IN_LOGOUT = 0x6,
- TARG_CONN_STATE_LOGOUT_REQUESTED = 0x7,
- TARG_CONN_STATE_CLEANUP_WAIT = 0x8,
-};
-
-/* RFC-3720 7.3.2 Session State Diagram for a Target */
-enum target_sess_state_table {
- TARG_SESS_STATE_FREE = 0x1,
- TARG_SESS_STATE_ACTIVE = 0x2,
- TARG_SESS_STATE_LOGGED_IN = 0x3,
- TARG_SESS_STATE_FAILED = 0x4,
- TARG_SESS_STATE_IN_CONTINUE = 0x5,
-};
-
-/* struct iscsi_data_count->type */
-enum data_count_type {
- ISCSI_RX_DATA = 1,
- ISCSI_TX_DATA = 2,
-};
-
-/* struct iscsi_datain_req->dr_complete */
-enum datain_req_comp_table {
- DATAIN_COMPLETE_NORMAL = 1,
- DATAIN_COMPLETE_WITHIN_COMMAND_RECOVERY = 2,
- DATAIN_COMPLETE_CONNECTION_RECOVERY = 3,
-};
-
-/* struct iscsi_datain_req->recovery */
-enum datain_req_rec_table {
- DATAIN_WITHIN_COMMAND_RECOVERY = 1,
- DATAIN_CONNECTION_RECOVERY = 2,
-};
-
-/* struct iscsi_portal_group->state */
-enum tpg_state_table {
- TPG_STATE_FREE = 0,
- TPG_STATE_ACTIVE = 1,
- TPG_STATE_INACTIVE = 2,
- TPG_STATE_COLD_RESET = 3,
-};
-
-/* struct iscsi_tiqn->tiqn_state */
-enum tiqn_state_table {
- TIQN_STATE_ACTIVE = 1,
- TIQN_STATE_SHUTDOWN = 2,
-};
-
-/* struct iscsi_cmd->cmd_flags */
-enum cmd_flags_table {
- ICF_GOT_LAST_DATAOUT = 0x00000001,
- ICF_GOT_DATACK_SNACK = 0x00000002,
- ICF_NON_IMMEDIATE_UNSOLICITED_DATA = 0x00000004,
- ICF_SENT_LAST_R2T = 0x00000008,
- ICF_WITHIN_COMMAND_RECOVERY = 0x00000010,
- ICF_CONTIG_MEMORY = 0x00000020,
- ICF_ATTACHED_TO_RQUEUE = 0x00000040,
- ICF_OOO_CMDSN = 0x00000080,
- ICF_SENDTARGETS_ALL = 0x00000100,
- ICF_SENDTARGETS_SINGLE = 0x00000200,
-};
-
-/* struct iscsi_cmd->i_state */
-enum cmd_i_state_table {
- ISTATE_NO_STATE = 0,
- ISTATE_NEW_CMD = 1,
- ISTATE_DEFERRED_CMD = 2,
- ISTATE_UNSOLICITED_DATA = 3,
- ISTATE_RECEIVE_DATAOUT = 4,
- ISTATE_RECEIVE_DATAOUT_RECOVERY = 5,
- ISTATE_RECEIVED_LAST_DATAOUT = 6,
- ISTATE_WITHIN_DATAOUT_RECOVERY = 7,
- ISTATE_IN_CONNECTION_RECOVERY = 8,
- ISTATE_RECEIVED_TASKMGT = 9,
- ISTATE_SEND_ASYNCMSG = 10,
- ISTATE_SENT_ASYNCMSG = 11,
- ISTATE_SEND_DATAIN = 12,
- ISTATE_SEND_LAST_DATAIN = 13,
- ISTATE_SENT_LAST_DATAIN = 14,
- ISTATE_SEND_LOGOUTRSP = 15,
- ISTATE_SENT_LOGOUTRSP = 16,
- ISTATE_SEND_NOPIN = 17,
- ISTATE_SENT_NOPIN = 18,
- ISTATE_SEND_REJECT = 19,
- ISTATE_SENT_REJECT = 20,
- ISTATE_SEND_R2T = 21,
- ISTATE_SENT_R2T = 22,
- ISTATE_SEND_R2T_RECOVERY = 23,
- ISTATE_SENT_R2T_RECOVERY = 24,
- ISTATE_SEND_LAST_R2T = 25,
- ISTATE_SENT_LAST_R2T = 26,
- ISTATE_SEND_LAST_R2T_RECOVERY = 27,
- ISTATE_SENT_LAST_R2T_RECOVERY = 28,
- ISTATE_SEND_STATUS = 29,
- ISTATE_SEND_STATUS_BROKEN_PC = 30,
- ISTATE_SENT_STATUS = 31,
- ISTATE_SEND_STATUS_RECOVERY = 32,
- ISTATE_SENT_STATUS_RECOVERY = 33,
- ISTATE_SEND_TASKMGTRSP = 34,
- ISTATE_SENT_TASKMGTRSP = 35,
- ISTATE_SEND_TEXTRSP = 36,
- ISTATE_SENT_TEXTRSP = 37,
- ISTATE_SEND_NOPIN_WANT_RESPONSE = 38,
- ISTATE_SENT_NOPIN_WANT_RESPONSE = 39,
- ISTATE_SEND_NOPIN_NO_RESPONSE = 40,
- ISTATE_REMOVE = 41,
- ISTATE_FREE = 42,
-};
-
-/* Used for iscsi_recover_cmdsn() return values */
-enum recover_cmdsn_ret_table {
- CMDSN_ERROR_CANNOT_RECOVER = -1,
- CMDSN_NORMAL_OPERATION = 0,
- CMDSN_LOWER_THAN_EXP = 1,
- CMDSN_HIGHER_THAN_EXP = 2,
- CMDSN_MAXCMDSN_OVERRUN = 3,
-};
-
-/* Used for iscsi_handle_immediate_data() return values */
-enum immedate_data_ret_table {
- IMMEDIATE_DATA_CANNOT_RECOVER = -1,
- IMMEDIATE_DATA_NORMAL_OPERATION = 0,
- IMMEDIATE_DATA_ERL1_CRC_FAILURE = 1,
-};
-
-/* Used for iscsi_decide_dataout_action() return values */
-enum dataout_action_ret_table {
- DATAOUT_CANNOT_RECOVER = -1,
- DATAOUT_NORMAL = 0,
- DATAOUT_SEND_R2T = 1,
- DATAOUT_SEND_TO_TRANSPORT = 2,
- DATAOUT_WITHIN_COMMAND_RECOVERY = 3,
-};
-
-/* Used for struct iscsi_node_auth->naf_flags */
-enum naf_flags_table {
- NAF_USERID_SET = 0x01,
- NAF_PASSWORD_SET = 0x02,
- NAF_USERID_IN_SET = 0x04,
- NAF_PASSWORD_IN_SET = 0x08,
-};
-
-/* Used by various struct timer_list to manage iSCSI specific state */
-enum iscsi_timer_flags_table {
- ISCSI_TF_RUNNING = 0x01,
- ISCSI_TF_STOP = 0x02,
- ISCSI_TF_EXPIRED = 0x04,
-};
-
-/* Used for struct iscsi_np->np_flags */
-enum np_flags_table {
- NPF_IP_NETWORK = 0x00,
-};
-
-/* Used for struct iscsi_np->np_thread_state */
-enum np_thread_state_table {
- ISCSI_NP_THREAD_ACTIVE = 1,
- ISCSI_NP_THREAD_INACTIVE = 2,
- ISCSI_NP_THREAD_RESET = 3,
- ISCSI_NP_THREAD_SHUTDOWN = 4,
- ISCSI_NP_THREAD_EXIT = 5,
-};
-
-struct iscsi_conn_ops {
- u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
- u8 DataDigest; /* [0,1] == [None,CRC32C] */
- u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
- u32 MaxXmitDataSegmentLength; /* [512..2**24-1] */
- u8 OFMarker; /* [0,1] == [No,Yes] */
- u8 IFMarker; /* [0,1] == [No,Yes] */
- u32 OFMarkInt; /* [1..65535] */
- u32 IFMarkInt; /* [1..65535] */
- /*
- * iSER specific connection parameters
- */
- u32 InitiatorRecvDataSegmentLength; /* [512..2**24-1] */
- u32 TargetRecvDataSegmentLength; /* [512..2**24-1] */
-};
-
-struct iscsi_sess_ops {
- char InitiatorName[224];
- char InitiatorAlias[256];
- char TargetName[224];
- char TargetAlias[256];
- char TargetAddress[256];
- u16 TargetPortalGroupTag; /* [0..65535] */
- u16 MaxConnections; /* [1..65535] */
- u8 InitialR2T; /* [0,1] == [No,Yes] */
- u8 ImmediateData; /* [0,1] == [No,Yes] */
- u32 MaxBurstLength; /* [512..2**24-1] */
- u32 FirstBurstLength; /* [512..2**24-1] */
- u16 DefaultTime2Wait; /* [0..3600] */
- u16 DefaultTime2Retain; /* [0..3600] */
- u16 MaxOutstandingR2T; /* [1..65535] */
- u8 DataPDUInOrder; /* [0,1] == [No,Yes] */
- u8 DataSequenceInOrder; /* [0,1] == [No,Yes] */
- u8 ErrorRecoveryLevel; /* [0..2] */
- u8 SessionType; /* [0,1] == [Normal,Discovery]*/
- /*
- * iSER specific session parameters
- */
- u8 RDMAExtensions; /* [0,1] == [No,Yes] */
-};
-
-struct iscsi_queue_req {
- int state;
- struct iscsi_cmd *cmd;
- struct list_head qr_list;
-};
-
-struct iscsi_data_count {
- int data_length;
- int sync_and_steering;
- enum data_count_type type;
- u32 iov_count;
- u32 ss_iov_count;
- u32 ss_marker_count;
- struct kvec *iov;
-};
-
-struct iscsi_param_list {
- bool iser;
- struct list_head param_list;
- struct list_head extra_response_list;
-};
-
-struct iscsi_datain_req {
- enum datain_req_comp_table dr_complete;
- int generate_recovery_values;
- enum datain_req_rec_table recovery;
- u32 begrun;
- u32 runlength;
- u32 data_length;
- u32 data_offset;
- u32 data_sn;
- u32 next_burst_len;
- u32 read_data_done;
- u32 seq_send_order;
- struct list_head cmd_datain_node;
-} ____cacheline_aligned;
-
-struct iscsi_ooo_cmdsn {
- u16 cid;
- u32 batch_count;
- u32 cmdsn;
- u32 exp_cmdsn;
- struct iscsi_cmd *cmd;
- struct list_head ooo_list;
-} ____cacheline_aligned;
-
-struct iscsi_datain {
- u8 flags;
- u32 data_sn;
- u32 length;
- u32 offset;
-} ____cacheline_aligned;
-
-struct iscsi_r2t {
- int seq_complete;
- int recovery_r2t;
- int sent_r2t;
- u32 r2t_sn;
- u32 offset;
- u32 targ_xfer_tag;
- u32 xfer_len;
- struct list_head r2t_list;
-} ____cacheline_aligned;
-
-struct iscsi_cmd {
- enum iscsi_timer_flags_table dataout_timer_flags;
- /* DataOUT timeout retries */
- u8 dataout_timeout_retries;
- /* Within command recovery count */
- u8 error_recovery_count;
- /* iSCSI dependent state for out or order CmdSNs */
- enum cmd_i_state_table deferred_i_state;
- /* iSCSI dependent state */
- enum cmd_i_state_table i_state;
- /* Command is an immediate command (ISCSI_OP_IMMEDIATE set) */
- u8 immediate_cmd;
- /* Immediate data present */
- u8 immediate_data;
- /* iSCSI Opcode */
- u8 iscsi_opcode;
- /* iSCSI Response Code */
- u8 iscsi_response;
- /* Logout reason when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
- u8 logout_reason;
- /* Logout response code when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
- u8 logout_response;
- /* MaxCmdSN has been incremented */
- u8 maxcmdsn_inc;
- /* Immediate Unsolicited Dataout */
- u8 unsolicited_data;
- /* Reject reason code */
- u8 reject_reason;
- /* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
- u16 logout_cid;
- /* Command flags */
- enum cmd_flags_table cmd_flags;
- /* Initiator Task Tag assigned from Initiator */
- itt_t init_task_tag;
- /* Target Transfer Tag assigned from Target */
- u32 targ_xfer_tag;
- /* CmdSN assigned from Initiator */
- u32 cmd_sn;
- /* ExpStatSN assigned from Initiator */
- u32 exp_stat_sn;
- /* StatSN assigned to this ITT */
- u32 stat_sn;
- /* DataSN Counter */
- u32 data_sn;
- /* R2TSN Counter */
- u32 r2t_sn;
- /* Last DataSN acknowledged via DataAck SNACK */
- u32 acked_data_sn;
- /* Used for echoing NOPOUT ping data */
- u32 buf_ptr_size;
- /* Used to store DataDigest */
- u32 data_crc;
- /* Counter for MaxOutstandingR2T */
- u32 outstanding_r2ts;
- /* Next R2T Offset when DataSequenceInOrder=Yes */
- u32 r2t_offset;
- /* Iovec current and orig count for iscsi_cmd->iov_data */
- u32 iov_data_count;
- u32 orig_iov_data_count;
- /* Number of miscellaneous iovecs used for IP stack calls */
- u32 iov_misc_count;
- /* Number of struct iscsi_pdu in struct iscsi_cmd->pdu_list */
- u32 pdu_count;
- /* Next struct iscsi_pdu to send in struct iscsi_cmd->pdu_list */
- u32 pdu_send_order;
- /* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
- u32 pdu_start;
- /* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
- u32 seq_send_order;
- /* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
- u32 seq_count;
- /* Current struct iscsi_seq in struct iscsi_cmd->seq_list */
- u32 seq_no;
- /* Lowest offset in current DataOUT sequence */
- u32 seq_start_offset;
- /* Highest offset in current DataOUT sequence */
- u32 seq_end_offset;
- /* Total size in bytes received so far of READ data */
- u32 read_data_done;
- /* Total size in bytes received so far of WRITE data */
- u32 write_data_done;
- /* Counter for FirstBurstLength key */
- u32 first_burst_len;
- /* Counter for MaxBurstLength key */
- u32 next_burst_len;
- /* Transfer size used for IP stack calls */
- u32 tx_size;
- /* Buffer used for various purposes */
- void *buf_ptr;
- /* Used by SendTargets=[iqn.,eui.] discovery */
- void *text_in_ptr;
- /* See include/linux/dma-mapping.h */
- enum dma_data_direction data_direction;
- /* iSCSI PDU Header + CRC */
- unsigned char pdu[ISCSI_HDR_LEN + ISCSI_CRC_LEN];
- /* Number of times struct iscsi_cmd is present in immediate queue */
- atomic_t immed_queue_count;
- atomic_t response_queue_count;
- spinlock_t datain_lock;
- spinlock_t dataout_timeout_lock;
- /* spinlock for protecting struct iscsi_cmd->i_state */
- spinlock_t istate_lock;
- /* spinlock for adding within command recovery entries */
- spinlock_t error_lock;
- /* spinlock for adding R2Ts */
- spinlock_t r2t_lock;
- /* DataIN List */
- struct list_head datain_list;
- /* R2T List */
- struct list_head cmd_r2t_list;
- /* Timer for DataOUT */
- struct timer_list dataout_timer;
- /* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
- struct kvec *iov_data;
- /* Iovecs for miscellaneous purposes */
-#define ISCSI_MISC_IOVECS 5
- struct kvec iov_misc[ISCSI_MISC_IOVECS];
- /* Array of struct iscsi_pdu used for DataPDUInOrder=No */
- struct iscsi_pdu *pdu_list;
- /* Current struct iscsi_pdu used for DataPDUInOrder=No */
- struct iscsi_pdu *pdu_ptr;
- /* Array of struct iscsi_seq used for DataSequenceInOrder=No */
- struct iscsi_seq *seq_list;
- /* Current struct iscsi_seq used for DataSequenceInOrder=No */
- struct iscsi_seq *seq_ptr;
- /* TMR Request when iscsi_opcode == ISCSI_OP_SCSI_TMFUNC */
- struct iscsi_tmr_req *tmr_req;
- /* Connection this command is alligient to */
- struct iscsi_conn *conn;
- /* Pointer to connection recovery entry */
- struct iscsi_conn_recovery *cr;
- /* Session the command is part of, used for connection recovery */
- struct iscsi_session *sess;
- /* list_head for connection list */
- struct list_head i_conn_node;
- /* The TCM I/O descriptor that is accessed via container_of() */
- struct se_cmd se_cmd;
- /* Sense buffer that will be mapped into outgoing status */
-#define ISCSI_SENSE_BUFFER_LEN (TRANSPORT_SENSE_BUFFER + 2)
- unsigned char sense_buffer[ISCSI_SENSE_BUFFER_LEN];
-
- u32 padding;
- u8 pad_bytes[4];
-
- struct scatterlist *first_data_sg;
- u32 first_data_sg_off;
- u32 kmapped_nents;
- sense_reason_t sense_reason;
-} ____cacheline_aligned;
-
-struct iscsi_tmr_req {
- bool task_reassign:1;
- u32 exp_data_sn;
- struct iscsi_cmd *ref_cmd;
- struct iscsi_conn_recovery *conn_recovery;
- struct se_tmr_req *se_tmr_req;
-};
-
-struct iscsi_conn {
- wait_queue_head_t queues_wq;
- /* Authentication Successful for this connection */
- u8 auth_complete;
- /* State connection is currently in */
- u8 conn_state;
- u8 conn_logout_reason;
- u8 network_transport;
- enum iscsi_timer_flags_table nopin_timer_flags;
- enum iscsi_timer_flags_table nopin_response_timer_flags;
- /* Used to know what thread encountered a transport failure */
- u8 which_thread;
- /* connection id assigned by the Initiator */
- u16 cid;
- /* Remote TCP Port */
- u16 login_port;
- u16 local_port;
- int net_size;
- int login_family;
- u32 auth_id;
- u32 conn_flags;
- /* Used for iscsi_tx_login_rsp() */
- itt_t login_itt;
- u32 exp_statsn;
- /* Per connection status sequence number */
- u32 stat_sn;
- /* IFMarkInt's Current Value */
- u32 if_marker;
- /* OFMarkInt's Current Value */
- u32 of_marker;
- /* Used for calculating OFMarker offset to next PDU */
- u32 of_marker_offset;
-#define IPV6_ADDRESS_SPACE 48
- unsigned char login_ip[IPV6_ADDRESS_SPACE];
- unsigned char local_ip[IPV6_ADDRESS_SPACE];
- int conn_usage_count;
- int conn_waiting_on_uc;
- atomic_t check_immediate_queue;
- atomic_t conn_logout_remove;
- atomic_t connection_exit;
- atomic_t connection_recovery;
- atomic_t connection_reinstatement;
- atomic_t connection_wait_rcfr;
- atomic_t sleep_on_conn_wait_comp;
- atomic_t transport_failed;
- struct completion conn_post_wait_comp;
- struct completion conn_wait_comp;
- struct completion conn_wait_rcfr_comp;
- struct completion conn_waiting_on_uc_comp;
- struct completion conn_logout_comp;
- struct completion tx_half_close_comp;
- struct completion rx_half_close_comp;
- /* socket used by this connection */
- struct socket *sock;
- void (*orig_data_ready)(struct sock *);
- void (*orig_state_change)(struct sock *);
-#define LOGIN_FLAGS_READ_ACTIVE 1
-#define LOGIN_FLAGS_CLOSED 2
-#define LOGIN_FLAGS_READY 4
- unsigned long login_flags;
- struct delayed_work login_work;
- struct delayed_work login_cleanup_work;
- struct iscsi_login *login;
- struct timer_list nopin_timer;
- struct timer_list nopin_response_timer;
- struct timer_list transport_timer;
- struct task_struct *login_kworker;
- /* Spinlock used for add/deleting cmd's from conn_cmd_list */
- spinlock_t cmd_lock;
- spinlock_t conn_usage_lock;
- spinlock_t immed_queue_lock;
- spinlock_t nopin_timer_lock;
- spinlock_t response_queue_lock;
- spinlock_t state_lock;
- /* libcrypto RX and TX contexts for crc32c */
- struct hash_desc conn_rx_hash;
- struct hash_desc conn_tx_hash;
- /* Used for scheduling TX and RX connection kthreads */
- cpumask_var_t conn_cpumask;
- unsigned int conn_rx_reset_cpumask:1;
- unsigned int conn_tx_reset_cpumask:1;
- /* list_head of struct iscsi_cmd for this connection */
- struct list_head conn_cmd_list;
- struct list_head immed_queue_list;
- struct list_head response_queue_list;
- struct iscsi_conn_ops *conn_ops;
- struct iscsi_login *conn_login;
- struct iscsit_transport *conn_transport;
- struct iscsi_param_list *param_list;
- /* Used for per connection auth state machine */
- void *auth_protocol;
- void *context;
- struct iscsi_login_thread_s *login_thread;
- struct iscsi_portal_group *tpg;
- struct iscsi_tpg_np *tpg_np;
- /* Pointer to parent session */
- struct iscsi_session *sess;
- /* Pointer to thread_set in use for this conn's threads */
- struct iscsi_thread_set *thread_set;
- /* list_head for session connection list */
- struct list_head conn_list;
-} ____cacheline_aligned;
-
-struct iscsi_conn_recovery {
- u16 cid;
- u32 cmd_count;
- u32 maxrecvdatasegmentlength;
- u32 maxxmitdatasegmentlength;
- int ready_for_reallegiance;
- struct list_head conn_recovery_cmd_list;
- spinlock_t conn_recovery_cmd_lock;
- struct timer_list time2retain_timer;
- struct iscsi_session *sess;
- struct list_head cr_list;
-} ____cacheline_aligned;
-
-struct iscsi_session {
- u8 initiator_vendor;
- u8 isid[6];
- enum iscsi_timer_flags_table time2retain_timer_flags;
- u8 version_active;
- u16 cid_called;
- u16 conn_recovery_count;
- u16 tsih;
- /* state session is currently in */
- u32 session_state;
- /* session wide counter: initiator assigned task tag */
- itt_t init_task_tag;
- /* session wide counter: target assigned task tag */
- u32 targ_xfer_tag;
- u32 cmdsn_window;
-
- /* protects cmdsn values */
- struct mutex cmdsn_mutex;
- /* session wide counter: expected command sequence number */
- u32 exp_cmd_sn;
- /* session wide counter: maximum allowed command sequence number */
- u32 max_cmd_sn;
- struct list_head sess_ooo_cmdsn_list;
-
- /* LIO specific session ID */
- u32 sid;
- char auth_type[8];
- /* unique within the target */
- int session_index;
- /* Used for session reference counting */
- int session_usage_count;
- int session_waiting_on_uc;
- atomic_long_t cmd_pdus;
- atomic_long_t rsp_pdus;
- atomic_long_t tx_data_octets;
- atomic_long_t rx_data_octets;
- atomic_long_t conn_digest_errors;
- atomic_long_t conn_timeout_errors;
- u64 creation_time;
- /* Number of active connections */
- atomic_t nconn;
- atomic_t session_continuation;
- atomic_t session_fall_back_to_erl0;
- atomic_t session_logout;
- atomic_t session_reinstatement;
- atomic_t session_stop_active;
- atomic_t sleep_on_sess_wait_comp;
- /* connection list */
- struct list_head sess_conn_list;
- struct list_head cr_active_list;
- struct list_head cr_inactive_list;
- spinlock_t conn_lock;
- spinlock_t cr_a_lock;
- spinlock_t cr_i_lock;
- spinlock_t session_usage_lock;
- spinlock_t ttt_lock;
- struct completion async_msg_comp;
- struct completion reinstatement_comp;
- struct completion session_wait_comp;
- struct completion session_waiting_on_uc_comp;
- struct timer_list time2retain_timer;
- struct iscsi_sess_ops *sess_ops;
- struct se_session *se_sess;
- struct iscsi_portal_group *tpg;
-} ____cacheline_aligned;
-
-struct iscsi_login {
- u8 auth_complete;
- u8 checked_for_existing;
- u8 current_stage;
- u8 leading_connection;
- u8 first_request;
- u8 version_min;
- u8 version_max;
- u8 login_complete;
- u8 login_failed;
- bool zero_tsih;
- char isid[6];
- u32 cmd_sn;
- itt_t init_task_tag;
- u32 initial_exp_statsn;
- u32 rsp_length;
- u16 cid;
- u16 tsih;
- char req[ISCSI_HDR_LEN];
- char rsp[ISCSI_HDR_LEN];
- char *req_buf;
- char *rsp_buf;
- struct iscsi_conn *conn;
- struct iscsi_np *np;
-} ____cacheline_aligned;
-
-struct iscsi_node_attrib {
- u32 dataout_timeout;
- u32 dataout_timeout_retries;
- u32 default_erl;
- u32 nopin_timeout;
- u32 nopin_response_timeout;
- u32 random_datain_pdu_offsets;
- u32 random_datain_seq_offsets;
- u32 random_r2t_offsets;
- u32 tmr_cold_reset;
- u32 tmr_warm_reset;
- struct iscsi_node_acl *nacl;
-};
-
-struct se_dev_entry_s;
-
-struct iscsi_node_auth {
- enum naf_flags_table naf_flags;
- int authenticate_target;
- /* Used for iscsit_global->discovery_auth,
- * set to zero (auth disabled) by default */
- int enforce_discovery_auth;
-#define MAX_USER_LEN 256
-#define MAX_PASS_LEN 256
- char userid[MAX_USER_LEN];
- char password[MAX_PASS_LEN];
- char userid_mutual[MAX_USER_LEN];
- char password_mutual[MAX_PASS_LEN];
-};
-
-#include "iscsi_target_stat.h"
-
-struct iscsi_node_stat_grps {
- struct config_group iscsi_sess_stats_group;
- struct config_group iscsi_conn_stats_group;
-};
-
-struct iscsi_node_acl {
- struct iscsi_node_attrib node_attrib;
- struct iscsi_node_auth node_auth;
- struct iscsi_node_stat_grps node_stat_grps;
- struct se_node_acl se_node_acl;
-};
-
-struct iscsi_tpg_attrib {
- u32 authentication;
- u32 login_timeout;
- u32 netif_timeout;
- u32 generate_node_acls;
- u32 cache_dynamic_acls;
- u32 default_cmdsn_depth;
- u32 demo_mode_write_protect;
- u32 prod_mode_write_protect;
- u32 demo_mode_discovery;
- u32 default_erl;
- u8 t10_pi;
- struct iscsi_portal_group *tpg;
-};
-
-struct iscsi_np {
- int np_network_transport;
- int np_ip_proto;
- int np_sock_type;
- enum np_thread_state_table np_thread_state;
- bool enabled;
- enum iscsi_timer_flags_table np_login_timer_flags;
- u32 np_exports;
- enum np_flags_table np_flags;
- unsigned char np_ip[IPV6_ADDRESS_SPACE];
- u16 np_port;
- spinlock_t np_thread_lock;
- struct completion np_restart_comp;
- struct socket *np_socket;
- struct __kernel_sockaddr_storage np_sockaddr;
- struct task_struct *np_thread;
- struct timer_list np_login_timer;
- void *np_context;
- struct iscsit_transport *np_transport;
- struct list_head np_list;
-} ____cacheline_aligned;
-
-struct iscsi_tpg_np {
- struct iscsi_np *tpg_np;
- struct iscsi_portal_group *tpg;
- struct iscsi_tpg_np *tpg_np_parent;
- struct list_head tpg_np_list;
- struct list_head tpg_np_child_list;
- struct list_head tpg_np_parent_list;
- struct se_tpg_np se_tpg_np;
- spinlock_t tpg_np_parent_lock;
- struct completion tpg_np_comp;
- struct kref tpg_np_kref;
-};
-
-struct iscsi_portal_group {
- unsigned char tpg_chap_id;
- /* TPG State */
- enum tpg_state_table tpg_state;
- /* Target Portal Group Tag */
- u16 tpgt;
- /* Id assigned to target sessions */
- u16 ntsih;
- /* Number of active sessions */
- u32 nsessions;
- /* Number of Network Portals available for this TPG */
- u32 num_tpg_nps;
- /* Per TPG LIO specific session ID. */
- u32 sid;
- /* Spinlock for adding/removing Network Portals */
- spinlock_t tpg_np_lock;
- spinlock_t tpg_state_lock;
- struct se_portal_group tpg_se_tpg;
- struct mutex tpg_access_lock;
- struct semaphore np_login_sem;
- struct iscsi_tpg_attrib tpg_attrib;
- struct iscsi_node_auth tpg_demo_auth;
- /* Pointer to default list of iSCSI parameters for TPG */
- struct iscsi_param_list *param_list;
- struct iscsi_tiqn *tpg_tiqn;
- struct list_head tpg_gnp_list;
- struct list_head tpg_list;
-} ____cacheline_aligned;
-
-struct iscsi_wwn_stat_grps {
- struct config_group iscsi_stat_group;
- struct config_group iscsi_instance_group;
- struct config_group iscsi_sess_err_group;
- struct config_group iscsi_tgt_attr_group;
- struct config_group iscsi_login_stats_group;
- struct config_group iscsi_logout_stats_group;
-};
-
-struct iscsi_tiqn {
-#define ISCSI_IQN_LEN 224
- unsigned char tiqn[ISCSI_IQN_LEN];
- enum tiqn_state_table tiqn_state;
- int tiqn_access_count;
- u32 tiqn_active_tpgs;
- u32 tiqn_ntpgs;
- u32 tiqn_num_tpg_nps;
- u32 tiqn_nsessions;
- struct list_head tiqn_list;
- struct list_head tiqn_tpg_list;
- spinlock_t tiqn_state_lock;
- spinlock_t tiqn_tpg_lock;
- struct se_wwn tiqn_wwn;
- struct iscsi_wwn_stat_grps tiqn_stat_grps;
- int tiqn_index;
- struct iscsi_sess_err_stats sess_err_stats;
- struct iscsi_login_stats login_stats;
- struct iscsi_logout_stats logout_stats;
-} ____cacheline_aligned;
-
-struct iscsit_global {
- /* In core shutdown */
- u32 in_shutdown;
- u32 active_ts;
- /* Unique identifier used for the authentication daemon */
- u32 auth_id;
- u32 inactive_ts;
- /* Thread Set bitmap count */
- int ts_bitmap_count;
- /* Thread Set bitmap pointer */
- unsigned long *ts_bitmap;
- /* Used for iSCSI discovery session authentication */
- struct iscsi_node_acl discovery_acl;
- struct iscsi_portal_group *discovery_tpg;
-};
-
-#endif /* ISCSI_TARGET_CORE_H */
diff --git a/drivers/target/iscsi/iscsi_target_datain_values.c b/drivers/target/iscsi/iscsi_target_datain_values.c
index e93d5a7a3f81..fb3b52b124ac 100644
--- a/drivers/target/iscsi/iscsi_target_datain_values.c
+++ b/drivers/target/iscsi/iscsi_target_datain_values.c
@@ -18,7 +18,7 @@
#include <scsi/iscsi_proto.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_erl1.h"
#include "iscsi_target_util.h"
diff --git a/drivers/target/iscsi/iscsi_target_device.c b/drivers/target/iscsi/iscsi_target_device.c
index 7087c736daa5..34c3cd1b05ce 100644
--- a/drivers/target/iscsi/iscsi_target_device.c
+++ b/drivers/target/iscsi/iscsi_target_device.c
@@ -21,7 +21,7 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_device.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index a0ae5fc0ad75..1c197bad6132 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -21,7 +21,8 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
+#include <target/iscsi/iscsi_transport.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_tq.h"
#include "iscsi_target_erl0.h"
@@ -939,7 +940,8 @@ void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) {
spin_unlock_bh(&conn->state_lock);
- iscsit_close_connection(conn);
+ if (conn->conn_transport->transport_type == ISCSI_TCP)
+ iscsit_close_connection(conn);
return;
}
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index cda4d80cfaef..2e561deb30a2 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -22,7 +22,7 @@
#include <target/target_core_fabric.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_datain_values.h"
#include "iscsi_target_device.h"
diff --git a/drivers/target/iscsi/iscsi_target_erl2.c b/drivers/target/iscsi/iscsi_target_erl2.c
index 4ca8fd2a70db..e24f1c7c5862 100644
--- a/drivers/target/iscsi/iscsi_target_erl2.c
+++ b/drivers/target/iscsi/iscsi_target_erl2.c
@@ -21,7 +21,7 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_datain_values.h"
#include "iscsi_target_util.h"
#include "iscsi_target_erl0.h"
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 713c0c1877ab..153fb66ac1b8 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -24,14 +24,14 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
+#include <target/iscsi/iscsi_target_stat.h>
#include "iscsi_target_tq.h"
#include "iscsi_target_device.h"
#include "iscsi_target_nego.h"
#include "iscsi_target_erl0.h"
#include "iscsi_target_erl2.h"
#include "iscsi_target_login.h"
-#include "iscsi_target_stat.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
#include "iscsi_target.h"
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 62a095f36bf2..8c02fa34716f 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -22,7 +22,7 @@
#include <target/target_core_fabric.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_login.h"
#include "iscsi_target_nego.h"
diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c
index 16454a922e2b..208cca8a363c 100644
--- a/drivers/target/iscsi/iscsi_target_nodeattrib.c
+++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c
@@ -18,7 +18,7 @@
#include <target/target_core_base.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_device.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index 18c29260b4a2..d4f9e9645697 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -18,7 +18,7 @@
#include <linux/slab.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_util.h"
#include "iscsi_target_parameters.h"
diff --git a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c
index ca41b583f2f6..e446a09c886b 100644
--- a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c
+++ b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c
@@ -20,7 +20,7 @@
#include <linux/slab.h>
#include <linux/random.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_util.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_seq_pdu_list.h"
diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c
index 103395510307..5e1349a3b143 100644
--- a/drivers/target/iscsi/iscsi_target_stat.c
+++ b/drivers/target/iscsi/iscsi_target_stat.c
@@ -23,12 +23,12 @@
#include <target/target_core_base.h>
#include <target/configfs_macros.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_device.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
-#include "iscsi_target_stat.h"
+#include <target/iscsi/iscsi_target_stat.h>
#ifndef INITIAL_JIFFIES
#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ))
diff --git a/drivers/target/iscsi/iscsi_target_stat.h b/drivers/target/iscsi/iscsi_target_stat.h
deleted file mode 100644
index 3ff76b4faad3..000000000000
--- a/drivers/target/iscsi/iscsi_target_stat.h
+++ /dev/null
@@ -1,64 +0,0 @@
-#ifndef ISCSI_TARGET_STAT_H
-#define ISCSI_TARGET_STAT_H
-
-/*
- * For struct iscsi_tiqn->tiqn_wwn default groups
- */
-extern struct config_item_type iscsi_stat_instance_cit;
-extern struct config_item_type iscsi_stat_sess_err_cit;
-extern struct config_item_type iscsi_stat_tgt_attr_cit;
-extern struct config_item_type iscsi_stat_login_cit;
-extern struct config_item_type iscsi_stat_logout_cit;
-
-/*
- * For struct iscsi_session->se_sess default groups
- */
-extern struct config_item_type iscsi_stat_sess_cit;
-
-/* iSCSI session error types */
-#define ISCSI_SESS_ERR_UNKNOWN 0
-#define ISCSI_SESS_ERR_DIGEST 1
-#define ISCSI_SESS_ERR_CXN_TIMEOUT 2
-#define ISCSI_SESS_ERR_PDU_FORMAT 3
-
-/* iSCSI session error stats */
-struct iscsi_sess_err_stats {
- spinlock_t lock;
- u32 digest_errors;
- u32 cxn_timeout_errors;
- u32 pdu_format_errors;
- u32 last_sess_failure_type;
- char last_sess_fail_rem_name[224];
-} ____cacheline_aligned;
-
-/* iSCSI login failure types (sub oids) */
-#define ISCSI_LOGIN_FAIL_OTHER 2
-#define ISCSI_LOGIN_FAIL_REDIRECT 3
-#define ISCSI_LOGIN_FAIL_AUTHORIZE 4
-#define ISCSI_LOGIN_FAIL_AUTHENTICATE 5
-#define ISCSI_LOGIN_FAIL_NEGOTIATE 6
-
-/* iSCSI login stats */
-struct iscsi_login_stats {
- spinlock_t lock;
- u32 accepts;
- u32 other_fails;
- u32 redirects;
- u32 authorize_fails;
- u32 authenticate_fails;
- u32 negotiate_fails; /* used for notifications */
- u64 last_fail_time; /* time stamp (jiffies) */
- u32 last_fail_type;
- int last_intr_fail_ip_family;
- unsigned char last_intr_fail_ip_addr[IPV6_ADDRESS_SPACE];
- char last_intr_fail_name[224];
-} ____cacheline_aligned;
-
-/* iSCSI logout stats */
-struct iscsi_logout_stats {
- spinlock_t lock;
- u32 normal_logouts;
- u32 abnormal_logouts;
-} ____cacheline_aligned;
-
-#endif /*** ISCSI_TARGET_STAT_H ***/
diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c
index 78404b1cc0bf..b0224a77e26d 100644
--- a/drivers/target/iscsi/iscsi_target_tmr.c
+++ b/drivers/target/iscsi/iscsi_target_tmr.c
@@ -23,7 +23,7 @@
#include <target/target_core_fabric.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_datain_values.h"
#include "iscsi_target_device.h"
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 9053a3c0c6e5..bdd127c0e3ae 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -20,7 +20,7 @@
#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_erl0.h"
#include "iscsi_target_login.h"
#include "iscsi_target_nodeattrib.h"
diff --git a/drivers/target/iscsi/iscsi_target_tq.c b/drivers/target/iscsi/iscsi_target_tq.c
index 601e9cc61e98..26aa50996473 100644
--- a/drivers/target/iscsi/iscsi_target_tq.c
+++ b/drivers/target/iscsi/iscsi_target_tq.c
@@ -20,40 +20,26 @@
#include <linux/list.h>
#include <linux/bitmap.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_tq.h"
#include "iscsi_target.h"
-static LIST_HEAD(active_ts_list);
static LIST_HEAD(inactive_ts_list);
-static DEFINE_SPINLOCK(active_ts_lock);
static DEFINE_SPINLOCK(inactive_ts_lock);
static DEFINE_SPINLOCK(ts_bitmap_lock);
-static void iscsi_add_ts_to_active_list(struct iscsi_thread_set *ts)
-{
- spin_lock(&active_ts_lock);
- list_add_tail(&ts->ts_list, &active_ts_list);
- iscsit_global->active_ts++;
- spin_unlock(&active_ts_lock);
-}
-
static void iscsi_add_ts_to_inactive_list(struct iscsi_thread_set *ts)
{
+ if (!list_empty(&ts->ts_list)) {
+ WARN_ON(1);
+ return;
+ }
spin_lock(&inactive_ts_lock);
list_add_tail(&ts->ts_list, &inactive_ts_list);
iscsit_global->inactive_ts++;
spin_unlock(&inactive_ts_lock);
}
-static void iscsi_del_ts_from_active_list(struct iscsi_thread_set *ts)
-{
- spin_lock(&active_ts_lock);
- list_del(&ts->ts_list);
- iscsit_global->active_ts--;
- spin_unlock(&active_ts_lock);
-}
-
static struct iscsi_thread_set *iscsi_get_ts_from_inactive_list(void)
{
struct iscsi_thread_set *ts;
@@ -66,7 +52,7 @@ static struct iscsi_thread_set *iscsi_get_ts_from_inactive_list(void)
ts = list_first_entry(&inactive_ts_list, struct iscsi_thread_set, ts_list);
- list_del(&ts->ts_list);
+ list_del_init(&ts->ts_list);
iscsit_global->inactive_ts--;
spin_unlock(&inactive_ts_lock);
@@ -204,8 +190,6 @@ static void iscsi_deallocate_extra_thread_sets(void)
void iscsi_activate_thread_set(struct iscsi_conn *conn, struct iscsi_thread_set *ts)
{
- iscsi_add_ts_to_active_list(ts);
-
spin_lock_bh(&ts->ts_state_lock);
conn->thread_set = ts;
ts->conn = conn;
@@ -397,7 +381,6 @@ struct iscsi_conn *iscsi_rx_thread_pre_handler(struct iscsi_thread_set *ts)
if (ts->delay_inactive && (--ts->thread_count == 0)) {
spin_unlock_bh(&ts->ts_state_lock);
- iscsi_del_ts_from_active_list(ts);
if (!iscsit_global->in_shutdown)
iscsi_deallocate_extra_thread_sets();
@@ -452,7 +435,6 @@ struct iscsi_conn *iscsi_tx_thread_pre_handler(struct iscsi_thread_set *ts)
if (ts->delay_inactive && (--ts->thread_count == 0)) {
spin_unlock_bh(&ts->ts_state_lock);
- iscsi_del_ts_from_active_list(ts);
if (!iscsit_global->in_shutdown)
iscsi_deallocate_extra_thread_sets();
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index bcd88ec99793..390df8ed72b2 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -25,7 +25,7 @@
#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_datain_values.h"
@@ -390,6 +390,7 @@ struct iscsi_cmd *iscsit_find_cmd_from_itt(
init_task_tag, conn->cid);
return NULL;
}
+EXPORT_SYMBOL(iscsit_find_cmd_from_itt);
struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(
struct iscsi_conn *conn,
@@ -939,13 +940,8 @@ static int iscsit_add_nopin(struct iscsi_conn *conn, int want_response)
state = (want_response) ? ISTATE_SEND_NOPIN_WANT_RESPONSE :
ISTATE_SEND_NOPIN_NO_RESPONSE;
cmd->init_task_tag = RESERVED_ITT;
- spin_lock_bh(&conn->sess->ttt_lock);
- cmd->targ_xfer_tag = (want_response) ? conn->sess->targ_xfer_tag++ :
- 0xFFFFFFFF;
- if (want_response && (cmd->targ_xfer_tag == 0xFFFFFFFF))
- cmd->targ_xfer_tag = conn->sess->targ_xfer_tag++;
- spin_unlock_bh(&conn->sess->ttt_lock);
-
+ cmd->targ_xfer_tag = (want_response) ?
+ session_get_next_ttt(conn->sess) : 0xFFFFFFFF;
spin_lock_bh(&conn->cmd_lock);
list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
spin_unlock_bh(&conn->cmd_lock);
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index a68508c4fec8..1ab754a671ff 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -16,7 +16,6 @@ extern struct iscsi_r2t *iscsit_get_holder_for_r2tsn(struct iscsi_cmd *, u32);
extern int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
unsigned char * ,__be32 cmdsn);
extern int iscsit_check_unsolicited_dataout(struct iscsi_cmd *, unsigned char *);
-extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, itt_t);
extern struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *,
itt_t, u32);
extern struct iscsi_cmd *iscsit_find_cmd_from_ttt(struct iscsi_conn *, u32);
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index d836de200a03..44620fb6bd45 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -494,6 +494,11 @@ fd_execute_write_same(struct se_cmd *cmd)
target_complete_cmd(cmd, SAM_STAT_GOOD);
return 0;
}
+ if (cmd->prot_op) {
+ pr_err("WRITE_SAME: Protection information with FILEIO"
+ " backends not supported\n");
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
sg = &cmd->t_data_sg[0];
if (cmd->t_data_nents > 1 ||
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 78346b850968..d4a4b0fb444a 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -464,6 +464,11 @@ iblock_execute_write_same(struct se_cmd *cmd)
sector_t block_lba = cmd->t_task_lba;
sector_t sectors = sbc_get_write_same_sectors(cmd);
+ if (cmd->prot_op) {
+ pr_err("WRITE_SAME: Protection information with IBLOCK"
+ " backends not supported\n");
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
sg = &cmd->t_data_sg[0];
if (cmd->t_data_nents > 1 ||
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 283cf786ef98..2de6fb8cee8d 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -1874,8 +1874,8 @@ static int core_scsi3_update_aptpl_buf(
}
if ((len + strlen(tmp) >= pr_aptpl_buf_len)) {
- pr_err("Unable to update renaming"
- " APTPL metadata\n");
+ pr_err("Unable to update renaming APTPL metadata,"
+ " reallocating larger buffer\n");
ret = -EMSGSIZE;
goto out;
}
@@ -1892,8 +1892,8 @@ static int core_scsi3_update_aptpl_buf(
lun->lun_sep->sep_rtpi, lun->unpacked_lun, reg_count);
if ((len + strlen(tmp) >= pr_aptpl_buf_len)) {
- pr_err("Unable to update renaming"
- " APTPL metadata\n");
+ pr_err("Unable to update renaming APTPL metadata,"
+ " reallocating larger buffer\n");
ret = -EMSGSIZE;
goto out;
}
@@ -1956,7 +1956,7 @@ static int __core_scsi3_write_aptpl_to_file(
static sense_reason_t core_scsi3_update_and_write_aptpl(struct se_device *dev, bool aptpl)
{
unsigned char *buf;
- int rc;
+ int rc, len = PR_APTPL_BUF_LEN;
if (!aptpl) {
char *null_buf = "No Registrations or Reservations\n";
@@ -1970,25 +1970,26 @@ static sense_reason_t core_scsi3_update_and_write_aptpl(struct se_device *dev, b
return 0;
}
-
- buf = kzalloc(PR_APTPL_BUF_LEN, GFP_KERNEL);
+retry:
+ buf = vzalloc(len);
if (!buf)
return TCM_OUT_OF_RESOURCES;
- rc = core_scsi3_update_aptpl_buf(dev, buf, PR_APTPL_BUF_LEN);
+ rc = core_scsi3_update_aptpl_buf(dev, buf, len);
if (rc < 0) {
- kfree(buf);
- return TCM_OUT_OF_RESOURCES;
+ vfree(buf);
+ len *= 2;
+ goto retry;
}
rc = __core_scsi3_write_aptpl_to_file(dev, buf);
if (rc != 0) {
pr_err("SPC-3 PR: Could not update APTPL\n");
- kfree(buf);
+ vfree(buf);
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
dev->t10_pr.pr_aptpl_active = 1;
- kfree(buf);
+ vfree(buf);
pr_debug("SPC-3 PR: Set APTPL Bit Activated\n");
return 0;
}
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index cd4bed7b2757..9a2f9d3a6e70 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -37,6 +37,9 @@
#include "target_core_alua.h"
static sense_reason_t
+sbc_check_prot(struct se_device *, struct se_cmd *, unsigned char *, u32, bool);
+
+static sense_reason_t
sbc_emulate_readcapacity(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
@@ -251,7 +254,10 @@ static inline unsigned long long transport_lba_64_ext(unsigned char *cdb)
static sense_reason_t
sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *ops)
{
+ struct se_device *dev = cmd->se_dev;
+ sector_t end_lba = dev->transport->get_blocks(dev) + 1;
unsigned int sectors = sbc_get_write_same_sectors(cmd);
+ sense_reason_t ret;
if ((flags[0] & 0x04) || (flags[0] & 0x02)) {
pr_err("WRITE_SAME PBDATA and LBDATA"
@@ -264,6 +270,16 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o
sectors, cmd->se_dev->dev_attrib.max_write_same_len);
return TCM_INVALID_CDB_FIELD;
}
+ /*
+ * Sanity check for LBA wrap and request past end of device.
+ */
+ if (((cmd->t_task_lba + sectors) < cmd->t_task_lba) ||
+ ((cmd->t_task_lba + sectors) > end_lba)) {
+ pr_err("WRITE_SAME exceeds last lba %llu (lba %llu, sectors %u)\n",
+ (unsigned long long)end_lba, cmd->t_task_lba, sectors);
+ return TCM_ADDRESS_OUT_OF_RANGE;
+ }
+
/* We always have ANC_SUP == 0 so setting ANCHOR is always an error */
if (flags[0] & 0x10) {
pr_warn("WRITE SAME with ANCHOR not supported\n");
@@ -277,12 +293,21 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o
if (!ops->execute_write_same_unmap)
return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (!dev->dev_attrib.emulate_tpws) {
+ pr_err("Got WRITE_SAME w/ UNMAP=1, but backend device"
+ " has emulate_tpws disabled\n");
+ return TCM_UNSUPPORTED_SCSI_OPCODE;
+ }
cmd->execute_cmd = ops->execute_write_same_unmap;
return 0;
}
if (!ops->execute_write_same)
return TCM_UNSUPPORTED_SCSI_OPCODE;
+ ret = sbc_check_prot(dev, cmd, &cmd->t_task_cdb[0], sectors, true);
+ if (ret)
+ return ret;
+
cmd->execute_cmd = ops->execute_write_same;
return 0;
}
@@ -614,14 +639,21 @@ sbc_set_prot_op_checks(u8 protect, enum target_prot_type prot_type,
return 0;
}
-static bool
+static sense_reason_t
sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
u32 sectors, bool is_write)
{
u8 protect = cdb[1] >> 5;
- if ((!cmd->t_prot_sg || !cmd->t_prot_nents) && cmd->prot_pto)
- return true;
+ if (!cmd->t_prot_sg || !cmd->t_prot_nents) {
+ if (protect && !dev->dev_attrib.pi_prot_type) {
+ pr_err("CDB contains protect bit, but device does not"
+ " advertise PROTECT=1 feature bit\n");
+ return TCM_INVALID_CDB_FIELD;
+ }
+ if (cmd->prot_pto)
+ return TCM_NO_SENSE;
+ }
switch (dev->dev_attrib.pi_prot_type) {
case TARGET_DIF_TYPE3_PROT:
@@ -629,7 +661,7 @@ sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
break;
case TARGET_DIF_TYPE2_PROT:
if (protect)
- return false;
+ return TCM_INVALID_CDB_FIELD;
cmd->reftag_seed = cmd->t_task_lba;
break;
@@ -638,12 +670,12 @@ sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
break;
case TARGET_DIF_TYPE0_PROT:
default:
- return true;
+ return TCM_NO_SENSE;
}
if (sbc_set_prot_op_checks(protect, dev->dev_attrib.pi_prot_type,
is_write, cmd))
- return false;
+ return TCM_INVALID_CDB_FIELD;
cmd->prot_type = dev->dev_attrib.pi_prot_type;
cmd->prot_length = dev->prot_length * sectors;
@@ -662,7 +694,30 @@ sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
__func__, cmd->prot_type, cmd->data_length, cmd->prot_length,
cmd->prot_op, cmd->prot_checks);
- return true;
+ return TCM_NO_SENSE;
+}
+
+static int
+sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb)
+{
+ if (cdb[1] & 0x10) {
+ if (!dev->dev_attrib.emulate_dpo) {
+ pr_err("Got CDB: 0x%02x with DPO bit set, but device"
+ " does not advertise support for DPO\n", cdb[0]);
+ return -EINVAL;
+ }
+ }
+ if (cdb[1] & 0x8) {
+ if (!dev->dev_attrib.emulate_fua_write ||
+ !dev->dev_attrib.emulate_write_cache) {
+ pr_err("Got CDB: 0x%02x with FUA bit set, but device"
+ " does not advertise support for FUA write\n",
+ cdb[0]);
+ return -EINVAL;
+ }
+ cmd->se_cmd_flags |= SCF_FUA;
+ }
+ return 0;
}
sense_reason_t
@@ -686,8 +741,12 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
sectors = transport_get_sectors_10(cdb);
cmd->t_task_lba = transport_lba_32(cdb);
- if (!sbc_check_prot(dev, cmd, cdb, sectors, false))
- return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, sectors, false);
+ if (ret)
+ return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
cmd->execute_rw = ops->execute_rw;
@@ -697,8 +756,12 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
sectors = transport_get_sectors_12(cdb);
cmd->t_task_lba = transport_lba_32(cdb);
- if (!sbc_check_prot(dev, cmd, cdb, sectors, false))
- return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, sectors, false);
+ if (ret)
+ return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
cmd->execute_rw = ops->execute_rw;
@@ -708,8 +771,12 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
sectors = transport_get_sectors_16(cdb);
cmd->t_task_lba = transport_lba_64(cdb);
- if (!sbc_check_prot(dev, cmd, cdb, sectors, false))
- return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, sectors, false);
+ if (ret)
+ return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
cmd->execute_rw = ops->execute_rw;
@@ -727,11 +794,13 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
sectors = transport_get_sectors_10(cdb);
cmd->t_task_lba = transport_lba_32(cdb);
- if (!sbc_check_prot(dev, cmd, cdb, sectors, true))
- return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, sectors, true);
+ if (ret)
+ return ret;
- if (cdb[1] & 0x8)
- cmd->se_cmd_flags |= SCF_FUA;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
@@ -740,11 +809,13 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
sectors = transport_get_sectors_12(cdb);
cmd->t_task_lba = transport_lba_32(cdb);
- if (!sbc_check_prot(dev, cmd, cdb, sectors, true))
- return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, sectors, true);
+ if (ret)
+ return ret;
- if (cdb[1] & 0x8)
- cmd->se_cmd_flags |= SCF_FUA;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
@@ -753,11 +824,13 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
sectors = transport_get_sectors_16(cdb);
cmd->t_task_lba = transport_lba_64(cdb);
- if (!sbc_check_prot(dev, cmd, cdb, sectors, true))
- return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, sectors, true);
+ if (ret)
+ return ret;
- if (cdb[1] & 0x8)
- cmd->se_cmd_flags |= SCF_FUA;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
@@ -768,6 +841,9 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
return TCM_INVALID_CDB_FIELD;
sectors = transport_get_sectors_10(cdb);
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
cmd->t_task_lba = transport_lba_32(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
@@ -777,8 +853,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
cmd->transport_complete_callback = &xdreadwrite_callback;
- if (cdb[1] & 0x8)
- cmd->se_cmd_flags |= SCF_FUA;
break;
case VARIABLE_LENGTH_CMD:
{
@@ -787,6 +861,8 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
case XDWRITEREAD_32:
sectors = transport_get_sectors_32(cdb);
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
/*
* Use WRITE_32 and READ_32 opcodes for the emulated
* XDWRITE_READ_32 logic.
@@ -801,8 +877,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
cmd->transport_complete_callback = &xdreadwrite_callback;
- if (cdb[1] & 0x8)
- cmd->se_cmd_flags |= SCF_FUA;
break;
case WRITE_SAME_32:
sectors = transport_get_sectors_32(cdb);
@@ -888,6 +962,11 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
if (!ops->execute_unmap)
return TCM_UNSUPPORTED_SCSI_OPCODE;
+ if (!dev->dev_attrib.emulate_tpu) {
+ pr_err("Got UNMAP, but backend device has"
+ " emulate_tpu disabled\n");
+ return TCM_UNSUPPORTED_SCSI_OPCODE;
+ }
size = get_unaligned_be16(&cdb[7]);
cmd->execute_cmd = ops->execute_unmap;
break;
@@ -955,7 +1034,8 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
unsigned long long end_lba;
check_lba:
end_lba = dev->transport->get_blocks(dev) + 1;
- if (cmd->t_task_lba + sectors > end_lba) {
+ if (((cmd->t_task_lba + sectors) < cmd->t_task_lba) ||
+ ((cmd->t_task_lba + sectors) > end_lba)) {
pr_err("cmd exceeds last lba %llu "
"(lba %llu, sectors %u)\n",
end_lba, cmd->t_task_lba, sectors);
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 4c71657da56a..460e93109473 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -647,7 +647,7 @@ spc_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
* support the use of the WRITE SAME (16) command to unmap LBAs.
*/
if (dev->dev_attrib.emulate_tpws != 0)
- buf[5] |= 0x40;
+ buf[5] |= 0x40 | 0x20;
return 0;
}