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-rw-r--r--drivers/target/iscsi/cxgbit/cxgbit.h2
-rw-r--r--drivers/target/iscsi/cxgbit/cxgbit_cm.c45
-rw-r--r--drivers/target/iscsi/cxgbit/cxgbit_ddp.c8
-rw-r--r--drivers/target/iscsi/cxgbit/cxgbit_main.c1
-rw-r--r--drivers/target/iscsi/iscsi_target.c80
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c3
-rw-r--r--drivers/target/iscsi/iscsi_target_erl1.c7
-rw-r--r--drivers/target/iscsi/iscsi_target_parameters.c39
-rw-r--r--drivers/target/iscsi/iscsi_target_seq_pdu_list.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_tpg.c7
-rw-r--r--drivers/target/iscsi/iscsi_target_util.c4
11 files changed, 124 insertions, 74 deletions
diff --git a/drivers/target/iscsi/cxgbit/cxgbit.h b/drivers/target/iscsi/cxgbit/cxgbit.h
index 90388698c222..417b9e66b0cd 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit.h
+++ b/drivers/target/iscsi/cxgbit/cxgbit.h
@@ -165,6 +165,7 @@ enum cxgbit_csk_flags {
CSK_LOGIN_PDU_DONE,
CSK_LOGIN_DONE,
CSK_DDP_ENABLE,
+ CSK_ABORT_RPL_WAIT,
};
struct cxgbit_sock_common {
@@ -321,6 +322,7 @@ int cxgbit_setup_np(struct iscsi_np *, struct sockaddr_storage *);
int cxgbit_setup_conn_digest(struct cxgbit_sock *);
int cxgbit_accept_np(struct iscsi_np *, struct iscsi_conn *);
void cxgbit_free_np(struct iscsi_np *);
+void cxgbit_abort_conn(struct cxgbit_sock *csk);
void cxgbit_free_conn(struct iscsi_conn *);
extern cxgbit_cplhandler_func cxgbit_cplhandlers[NUM_CPL_CMDS];
int cxgbit_get_login_rx(struct iscsi_conn *, struct iscsi_login *);
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
index d4fa41be80f9..92eb57e2adaf 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
@@ -665,6 +665,46 @@ static int cxgbit_send_abort_req(struct cxgbit_sock *csk)
return cxgbit_l2t_send(csk->com.cdev, skb, csk->l2t);
}
+static void
+__cxgbit_abort_conn(struct cxgbit_sock *csk, struct sk_buff *skb)
+{
+ __kfree_skb(skb);
+
+ if (csk->com.state != CSK_STATE_ESTABLISHED)
+ goto no_abort;
+
+ set_bit(CSK_ABORT_RPL_WAIT, &csk->com.flags);
+ csk->com.state = CSK_STATE_ABORTING;
+
+ cxgbit_send_abort_req(csk);
+
+ return;
+
+no_abort:
+ cxgbit_wake_up(&csk->com.wr_wait, __func__, CPL_ERR_NONE);
+ cxgbit_put_csk(csk);
+}
+
+void cxgbit_abort_conn(struct cxgbit_sock *csk)
+{
+ struct sk_buff *skb = alloc_skb(0, GFP_KERNEL | __GFP_NOFAIL);
+
+ cxgbit_get_csk(csk);
+ cxgbit_init_wr_wait(&csk->com.wr_wait);
+
+ spin_lock_bh(&csk->lock);
+ if (csk->lock_owner) {
+ cxgbit_skcb_rx_backlog_fn(skb) = __cxgbit_abort_conn;
+ __skb_queue_tail(&csk->backlogq, skb);
+ } else {
+ __cxgbit_abort_conn(csk, skb);
+ }
+ spin_unlock_bh(&csk->lock);
+
+ cxgbit_wait_for_reply(csk->com.cdev, &csk->com.wr_wait,
+ csk->tid, 600, __func__);
+}
+
void cxgbit_free_conn(struct iscsi_conn *conn)
{
struct cxgbit_sock *csk = conn->context;
@@ -1709,12 +1749,17 @@ rel_skb:
static void cxgbit_abort_rpl_rss(struct cxgbit_sock *csk, struct sk_buff *skb)
{
+ struct cpl_abort_rpl_rss *rpl = cplhdr(skb);
+
pr_debug("%s: csk %p; tid %u; state %d\n",
__func__, csk, csk->tid, csk->com.state);
switch (csk->com.state) {
case CSK_STATE_ABORTING:
csk->com.state = CSK_STATE_DEAD;
+ if (test_bit(CSK_ABORT_RPL_WAIT, &csk->com.flags))
+ cxgbit_wake_up(&csk->com.wr_wait, __func__,
+ rpl->status);
cxgbit_put_csk(csk);
break;
default:
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
index 5fdb57cac968..768cce0ccb80 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
@@ -275,6 +275,14 @@ void cxgbit_release_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
struct cxgbit_device *cdev = csk->com.cdev;
struct cxgbi_ppm *ppm = cdev2ppm(cdev);
+ /* Abort the TCP conn if DDP is not complete to
+ * avoid any possibility of DDP after freeing
+ * the cmd.
+ */
+ if (unlikely(cmd->write_data_done !=
+ cmd->se_cmd.data_length))
+ cxgbit_abort_conn(csk);
+
cxgbi_ppm_ppod_release(ppm, ttinfo->idx);
dma_unmap_sg(&ppm->pdev->dev, ttinfo->sgl,
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_main.c b/drivers/target/iscsi/cxgbit/cxgbit_main.c
index 4fd775ace541..f3f8856bfb68 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_main.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_main.c
@@ -446,6 +446,7 @@ cxgbit_uld_lro_rx_handler(void *hndl, const __be64 *rsp,
case CPL_RX_ISCSI_DDP:
case CPL_FW4_ACK:
lro_flush = false;
+ /* fall through */
case CPL_ABORT_RPL_RSS:
case CPL_PASS_ESTABLISH:
case CPL_PEER_CLOSE:
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 9e67c7678c86..9eb10d34682c 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -502,7 +502,7 @@ void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
EXPORT_SYMBOL(iscsit_aborted_task);
static void iscsit_do_crypto_hash_buf(struct ahash_request *, const void *,
- u32, u32, u8 *, u8 *);
+ u32, u32, const void *, void *);
static void iscsit_tx_thread_wait_for_tcp(struct iscsi_conn *);
static int
@@ -523,7 +523,7 @@ iscsit_xmit_nondatain_pdu(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
ISCSI_HDR_LEN, 0, NULL,
- (u8 *)header_digest);
+ header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
@@ -550,9 +550,8 @@ iscsit_xmit_nondatain_pdu(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (conn->conn_ops->DataDigest) {
iscsit_do_crypto_hash_buf(conn->conn_tx_hash,
data_buf, data_buf_len,
- padding,
- (u8 *)&cmd->pad_bytes,
- (u8 *)&cmd->data_crc);
+ padding, &cmd->pad_bytes,
+ &cmd->data_crc);
iov[niov].iov_base = &cmd->data_crc;
iov[niov++].iov_len = ISCSI_CRC_LEN;
@@ -597,7 +596,7 @@ iscsit_xmit_datain_pdu(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
iscsit_do_crypto_hash_buf(conn->conn_tx_hash, cmd->pdu,
ISCSI_HDR_LEN, 0, NULL,
- (u8 *)header_digest);
+ header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
@@ -836,6 +835,7 @@ static int iscsit_add_reject_from_cmd(
unsigned char *buf)
{
struct iscsi_conn *conn;
+ const bool do_put = cmd->se_cmd.se_tfo != NULL;
if (!cmd->conn) {
pr_err("cmd->conn is NULL for ITT: 0x%08x\n",
@@ -866,7 +866,7 @@ static int iscsit_add_reject_from_cmd(
* Perform the kref_put now if se_cmd has already been setup by
* scsit_setup_scsi_cmd()
*/
- if (cmd->se_cmd.se_tfo != NULL) {
+ if (do_put) {
pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n");
target_put_sess_cmd(&cmd->se_cmd);
}
@@ -1410,13 +1410,9 @@ static u32 iscsit_do_crypto_hash_sg(
return data_crc;
}
-static void iscsit_do_crypto_hash_buf(
- struct ahash_request *hash,
- const void *buf,
- u32 payload_length,
- u32 padding,
- u8 *pad_bytes,
- u8 *data_crc)
+static void iscsit_do_crypto_hash_buf(struct ahash_request *hash,
+ const void *buf, u32 payload_length, u32 padding,
+ const void *pad_bytes, void *data_crc)
{
struct scatterlist sg[2];
@@ -1462,9 +1458,9 @@ __iscsit_check_dataout_hdr(struct iscsi_conn *conn, void *buf,
iscsit_mod_dataout_timer(cmd);
if ((be32_to_cpu(hdr->offset) + payload_length) > cmd->se_cmd.data_length) {
- pr_err("DataOut Offset: %u, Length %u greater than"
- " iSCSI Command EDTL %u, protocol error.\n",
- hdr->offset, payload_length, cmd->se_cmd.data_length);
+ pr_err("DataOut Offset: %u, Length %u greater than iSCSI Command EDTL %u, protocol error.\n",
+ be32_to_cpu(hdr->offset), payload_length,
+ cmd->se_cmd.data_length);
return iscsit_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_INVALID, buf);
}
@@ -1878,10 +1874,9 @@ static int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
}
if (conn->conn_ops->DataDigest) {
- iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
- ping_data, payload_length,
- padding, cmd->pad_bytes,
- (u8 *)&data_crc);
+ iscsit_do_crypto_hash_buf(conn->conn_rx_hash, ping_data,
+ payload_length, padding,
+ cmd->pad_bytes, &data_crc);
if (checksum != data_crc) {
pr_err("Ping data CRC32C DataDigest"
@@ -1962,7 +1957,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct iscsi_tmr_req *tmr_req;
struct iscsi_tm *hdr;
int out_of_order_cmdsn = 0, ret;
- bool sess_ref = false;
u8 function, tcm_function = TMR_UNKNOWN;
hdr = (struct iscsi_tm *) buf;
@@ -1995,22 +1989,23 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
cmd->data_direction = DMA_NONE;
cmd->tmr_req = kzalloc(sizeof(*cmd->tmr_req), GFP_KERNEL);
- if (!cmd->tmr_req)
+ if (!cmd->tmr_req) {
return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES,
buf);
+ }
+
+ transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops,
+ conn->sess->se_sess, 0, DMA_NONE,
+ TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
+
+ target_get_sess_cmd(&cmd->se_cmd, true);
/*
* TASK_REASSIGN for ERL=2 / connection stays inside of
* LIO-Target $FABRIC_MOD
*/
if (function != ISCSI_TM_FUNC_TASK_REASSIGN) {
- transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops,
- conn->sess->se_sess, 0, DMA_NONE,
- TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
-
- target_get_sess_cmd(&cmd->se_cmd, true);
- sess_ref = true;
tcm_function = iscsit_convert_tmf(function);
if (tcm_function == TMR_UNKNOWN) {
pr_err("Unknown iSCSI TMR Function:"
@@ -2101,12 +2096,14 @@ attach:
if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
int cmdsn_ret = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn);
- if (cmdsn_ret == CMDSN_HIGHER_THAN_EXP)
+ if (cmdsn_ret == CMDSN_HIGHER_THAN_EXP) {
out_of_order_cmdsn = 1;
- else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
+ } else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
- else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+ } else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) {
return -1;
+ }
}
iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
@@ -2126,12 +2123,8 @@ attach:
* For connection recovery, this is also the default action for
* TMR TASK_REASSIGN.
*/
- if (sess_ref) {
- pr_debug("Handle TMR, using sess_ref=true check\n");
- target_put_sess_cmd(&cmd->se_cmd);
- }
-
iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
EXPORT_SYMBOL(iscsit_handle_task_mgt_cmd);
@@ -2287,10 +2280,9 @@ iscsit_handle_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
goto reject;
if (conn->conn_ops->DataDigest) {
- iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
- text_in, payload_length,
- padding, (u8 *)&pad_bytes,
- (u8 *)&data_crc);
+ iscsit_do_crypto_hash_buf(conn->conn_rx_hash, text_in,
+ payload_length, padding,
+ &pad_bytes, &data_crc);
if (checksum != data_crc) {
pr_err("Text data CRC32C DataDigest"
@@ -3978,9 +3970,9 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *conn)
return;
}
- iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
- buffer, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)&checksum);
+ iscsit_do_crypto_hash_buf(conn->conn_rx_hash, buffer,
+ ISCSI_HDR_LEN, 0, NULL,
+ &checksum);
if (digest != checksum) {
pr_err("HeaderDigest CRC32C failed,"
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 0dd4c45f7575..0ebc4818e132 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1123,7 +1123,7 @@ static struct se_portal_group *lio_target_tiqn_addtpg(
ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
if (ret < 0)
- return NULL;
+ goto free_out;
ret = iscsit_tpg_add_portal_group(tiqn, tpg);
if (ret != 0)
@@ -1135,6 +1135,7 @@ static struct se_portal_group *lio_target_tiqn_addtpg(
return &tpg->tpg_se_tpg;
out:
core_tpg_deregister(&tpg->tpg_se_tpg);
+free_out:
kfree(tpg);
return NULL;
}
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index 76184094a0cf..5efa42b939a1 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -34,7 +34,7 @@
#include "iscsi_target_erl2.h"
#include "iscsi_target.h"
-#define OFFLOAD_BUF_SIZE 32768
+#define OFFLOAD_BUF_SIZE 32768U
/*
* Used to dump excess datain payload for certain error recovery
@@ -56,7 +56,7 @@ int iscsit_dump_data_payload(
if (conn->sess->sess_ops->RDMAExtensions)
return 0;
- length = (buf_len > OFFLOAD_BUF_SIZE) ? OFFLOAD_BUF_SIZE : buf_len;
+ length = min(buf_len, OFFLOAD_BUF_SIZE);
buf = kzalloc(length, GFP_ATOMIC);
if (!buf) {
@@ -67,8 +67,7 @@ int iscsit_dump_data_payload(
memset(&iov, 0, sizeof(struct kvec));
while (offset < buf_len) {
- size = ((offset + length) > buf_len) ?
- (buf_len - offset) : length;
+ size = min(buf_len - offset, length);
iov.iov_len = size;
iov.iov_base = buf;
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index caab1045742d..29a37b242d30 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -1380,10 +1380,8 @@ int iscsi_decode_text_input(
char *key, *value;
struct iscsi_param *param;
- if (iscsi_extract_key_value(start, &key, &value) < 0) {
- kfree(tmpbuf);
- return -1;
- }
+ if (iscsi_extract_key_value(start, &key, &value) < 0)
+ goto free_buffer;
pr_debug("Got key: %s=%s\n", key, value);
@@ -1396,38 +1394,37 @@ int iscsi_decode_text_input(
param = iscsi_check_key(key, phase, sender, param_list);
if (!param) {
- if (iscsi_add_notunderstood_response(key,
- value, param_list) < 0) {
- kfree(tmpbuf);
- return -1;
- }
+ if (iscsi_add_notunderstood_response(key, value,
+ param_list) < 0)
+ goto free_buffer;
+
start += strlen(key) + strlen(value) + 2;
continue;
}
- if (iscsi_check_value(param, value) < 0) {
- kfree(tmpbuf);
- return -1;
- }
+ if (iscsi_check_value(param, value) < 0)
+ goto free_buffer;
start += strlen(key) + strlen(value) + 2;
if (IS_PSTATE_PROPOSER(param)) {
- if (iscsi_check_proposer_state(param, value) < 0) {
- kfree(tmpbuf);
- return -1;
- }
+ if (iscsi_check_proposer_state(param, value) < 0)
+ goto free_buffer;
+
SET_PSTATE_RESPONSE_GOT(param);
} else {
- if (iscsi_check_acceptor_state(param, value, conn) < 0) {
- kfree(tmpbuf);
- return -1;
- }
+ if (iscsi_check_acceptor_state(param, value, conn) < 0)
+ goto free_buffer;
+
SET_PSTATE_ACCEPTOR(param);
}
}
kfree(tmpbuf);
return 0;
+
+free_buffer:
+ kfree(tmpbuf);
+ return -1;
}
int iscsi_encode_text_output(
diff --git a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c
index e446a09c886b..f65e5e584212 100644
--- a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c
+++ b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c
@@ -25,8 +25,6 @@
#include "iscsi_target_tpg.h"
#include "iscsi_target_seq_pdu_list.h"
-#define OFFLOAD_BUF_SIZE 32768
-
#ifdef DEBUG
static void iscsit_dump_seq_list(struct iscsi_cmd *cmd)
{
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 594d07a1e995..4b34f71547c6 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -90,10 +90,10 @@ int iscsit_load_discovery_tpg(void)
*/
param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
if (!param)
- goto out;
+ goto free_pl_out;
if (iscsi_update_param_value(param, "CHAP,None") < 0)
- goto out;
+ goto free_pl_out;
tpg->tpg_attrib.authentication = 0;
@@ -105,6 +105,8 @@ int iscsit_load_discovery_tpg(void)
pr_debug("CORE[0] - Allocated Discovery TPG\n");
return 0;
+free_pl_out:
+ iscsi_release_param_list(tpg->param_list);
out:
if (tpg->sid == 1)
core_tpg_deregister(&tpg->tpg_se_tpg);
@@ -119,6 +121,7 @@ void iscsit_release_discovery_tpg(void)
if (!tpg)
return;
+ iscsi_release_param_list(tpg->param_list);
core_tpg_deregister(&tpg->tpg_se_tpg);
kfree(tpg);
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 54f20f184dd6..4435bf374d2d 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -695,6 +695,8 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd)
struct iscsi_session *sess;
struct se_cmd *se_cmd = &cmd->se_cmd;
+ WARN_ON(!list_empty(&cmd->i_conn_node));
+
if (cmd->conn)
sess = cmd->conn->sess;
else
@@ -717,6 +719,8 @@ void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool check_queues)
{
struct iscsi_conn *conn = cmd->conn;
+ WARN_ON(!list_empty(&cmd->i_conn_node));
+
if (cmd->data_direction == DMA_TO_DEVICE) {
iscsit_stop_dataout_timer(cmd);
iscsit_free_r2ts_from_list(cmd);
generated by cgit (git 2.34.1) at 2024-05-22 13:27:08 +0000